git.oblomov.eu Git - linux-2.6/blob - drivers/scsi/ips.c

   1 /*****************************************************************************/
   2 /* ips.c -- driver for the Adaptec / IBM ServeRAID controller                */
   3 /*                                                                           */
   4 /* Written By: Keith Mitchell, IBM Corporation                               */
   5 /*             Jack Hammer, Adaptec, Inc.                                    */
   6 /*             David Jeffery, Adaptec, Inc.                                  */
   7 /*                                                                           */
   8 /* Copyright (C) 2000 IBM Corporation                                        */
   9 /* Copyright (C) 2002,2003 Adaptec, Inc.                                     */
  10 /*                                                                           */
  11 /* This program is free software; you can redistribute it and/or modify      */
  12 /* it under the terms of the GNU General Public License as published by      */
  13 /* the Free Software Foundation; either version 2 of the License, or         */
  14 /* (at your option) any later version.                                       */
  15 /*                                                                           */
  16 /* This program is distributed in the hope that it will be useful,           */
  17 /* but WITHOUT ANY WARRANTY; without even the implied warranty of            */
  18 /* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the             */
  19 /* GNU General Public License for more details.                              */
  20 /*                                                                           */
  21 /* NO WARRANTY                                                               */
  22 /* THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR        */
  23 /* CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT      */
  24 /* LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,      */
  25 /* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is    */
  26 /* solely responsible for determining the appropriateness of using and       */
  27 /* distributing the Program and assumes all risks associated with its        */
  28 /* exercise of rights under this Agreement, including but not limited to     */
  29 /* the risks and costs of program errors, damage to or loss of data,         */
  30 /* programs or equipment, and unavailability or interruption of operations.  */
  31 /*                                                                           */
  32 /* DISCLAIMER OF LIABILITY                                                   */
  33 /* NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY   */
  34 /* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL        */
  35 /* DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND   */
  36 /* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR     */
  37 /* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE    */
  38 /* USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED  */
  39 /* HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES             */
  40 /*                                                                           */
  41 /* You should have received a copy of the GNU General Public License         */
  42 /* along with this program; if not, write to the Free Software               */
  43 /* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
  44 /*                                                                           */
  45 /* Bugs/Comments/Suggestions about this driver should be mailed to:          */
  46 /*      ipslinux@adaptec.com                                                 */
  47 /*                                                                           */
  48 /* For system support issues, contact your local IBM Customer support.       */
  49 /* Directions to find IBM Customer Support for each country can be found at: */
  50 /*      http://www.ibm.com/planetwide/                                       */
  51 /*                                                                           */
  52 /*****************************************************************************/
  53
  54 /*****************************************************************************/
  55 /* Change Log                                                                */
  56 /*                                                                           */
  57 /* 0.99.02  - Breakup commands that are bigger than 8 * the stripe size      */
  58 /* 0.99.03  - Make interrupt routine handle all completed request on the     */
  59 /*            adapter not just the first one                                 */
  60 /*          - Make sure passthru commands get woken up if we run out of      */
  61 /*            SCBs                                                           */
  62 /*          - Send all of the commands on the queue at once rather than      */
  63 /*            one at a time since the card will support it.                  */
  64 /* 0.99.04  - Fix race condition in the passthru mechanism -- this required  */
  65 /*            the interface to the utilities to change                       */
  66 /*          - Fix error recovery code                                        */
  67 /* 0.99.05  - Fix an oops when we get certain passthru commands              */
  68 /* 1.00.00  - Initial Public Release                                         */
  69 /*            Functionally equivalent to 0.99.05                             */
  70 /* 3.60.00  - Bump max commands to 128 for use with firmware 3.60            */
  71 /*          - Change version to 3.60 to coincide with release numbering.     */
  72 /* 3.60.01  - Remove bogus error check in passthru routine                   */
  73 /* 3.60.02  - Make DCDB direction based on lookup table                      */
  74 /*          - Only allow one DCDB command to a SCSI ID at a time             */
  75 /* 4.00.00  - Add support for ServeRAID 4                                    */
  76 /* 4.00.01  - Add support for First Failure Data Capture                     */
  77 /* 4.00.02  - Fix problem with PT DCDB with no buffer                        */
  78 /* 4.00.03  - Add alternative passthru interface                             */
  79 /*          - Add ability to flash BIOS                                      */
  80 /* 4.00.04  - Rename structures/constants to be prefixed with IPS_           */
  81 /* 4.00.05  - Remove wish_block from init routine                            */
  82 /*          - Use linux/spinlock.h instead of asm/spinlock.h for kernels     */
  83 /*            2.3.18 and later                                               */
  84 /*          - Sync with other changes from the 2.3 kernels                   */
  85 /* 4.00.06  - Fix timeout with initial FFDC command                          */
  86 /* 4.00.06a - Port to 2.4 (trivial) -- Christoph Hellwig <hch@infradead.org> */
  87 /* 4.10.00  - Add support for ServeRAID 4M/4L                                */
  88 /* 4.10.13  - Fix for dynamic unload and proc file system                    */
  89 /* 4.20.03  - Rename version to coincide with new release schedules          */
  90 /*            Performance fixes                                              */
  91 /*            Fix truncation of /proc files with cat                         */
  92 /*            Merge in changes through kernel 2.4.0test1ac21                 */
  93 /* 4.20.13  - Fix some failure cases / reset code                            */
  94 /*          - Hook into the reboot_notifier to flush the controller cache    */
  95 /* 4.50.01  - Fix problem when there is a hole in logical drive numbering    */
  96 /* 4.70.09  - Use a Common ( Large Buffer ) for Flashing from the JCRM CD    */
  97 /*          - Add IPSSEND Flash Support                                      */
  98 /*          - Set Sense Data for Unknown SCSI Command                        */
  99 /*          - Use Slot Number from NVRAM Page 5                              */
 100 /*          - Restore caller's DCDB Structure                                */
 101 /* 4.70.12  - Corrective actions for bad controller ( during initialization )*/
 102 /* 4.70.13  - Don't Send CDB's if we already know the device is not present  */
 103 /*          - Don't release HA Lock in ips_next() until SC taken off queue   */
 104 /*          - Unregister SCSI device in ips_release()                        */
 105 /* 4.70.15  - Fix Breakup for very large ( non-SG ) requests in ips_done()   */
 106 /* 4.71.00  - Change all memory allocations to not use GFP_DMA flag          */
 107 /*            Code Clean-Up for 2.4.x kernel                                 */
 108 /* 4.72.00  - Allow for a Scatter-Gather Element to exceed MAX_XFER Size     */
 109 /* 4.72.01  - I/O Mapped Memory release ( so "insmod ips" does not Fail )    */
 110 /*          - Don't Issue Internal FFDC Command if there are Active Commands */
 111 /*          - Close Window for getting too many IOCTL's active               */
 112 /* 4.80.00  - Make ia64 Safe                                                 */
 113 /* 4.80.04  - Eliminate calls to strtok() if 2.4.x or greater                */
 114 /*          - Adjustments to Device Queue Depth                              */
 115 /* 4.80.14  - Take all semaphores off stack                                  */
 116 /*          - Clean Up New_IOCTL path                                        */
 117 /* 4.80.20  - Set max_sectors in Scsi_Host structure ( if >= 2.4.7 kernel )  */
 118 /*          - 5 second delay needed after resetting an i960 adapter          */
 119 /* 4.80.26  - Clean up potential code problems ( Arjan's recommendations )   */
 120 /* 4.90.01  - Version Matching for FirmWare, BIOS, and Driver                */
 121 /* 4.90.05  - Use New PCI Architecture to facilitate Hot Plug Development    */
 122 /* 4.90.08  - Increase Delays in Flashing ( Trombone Only - 4H )             */
 123 /* 4.90.08  - Data Corruption if First Scatter Gather Element is > 64K       */
 124 /* 4.90.11  - Don't actually RESET unless it's physically required           */
 125 /*          - Remove unused compile options                                  */
 126 /* 5.00.01  - Sarasota ( 5i ) adapters must always be scanned first          */
 127 /*          - Get rid on IOCTL_NEW_COMMAND code                              */
 128 /*          - Add Extended DCDB Commands for Tape Support in 5I              */
 129 /* 5.10.12  - use pci_dma interfaces, update for 2.5 kernel changes          */
 130 /* 5.10.15  - remove unused code (sem, macros, etc.)                         */
 131 /* 5.30.00  - use __devexit_p()                                              */
 132 /* 6.00.00  - Add 6x Adapters and Battery Flash                              */
 133 /* 6.10.00  - Remove 1G Addressing Limitations                               */
 134 /* 6.11.xx  - Get VersionInfo buffer off the stack !              DDTS 60401 */
 135 /* 6.11.xx  - Make Logical Drive Info structure safe for DMA      DDTS 60639 */
 136 /* 7.10.18  - Add highmem_io flag in SCSI Templete for 2.4 kernels           */
 137 /*          - Fix path/name for scsi_hosts.h include for 2.6 kernels         */
 138 /*          - Fix sort order of 7k                                           */
 139 /*          - Remove 3 unused "inline" functions                             */
 140 /* 7.12.xx  - Use STATIC functions whereever possible                        */
 141 /*          - Clean up deprecated MODULE_PARM calls                          */
 142 /*****************************************************************************/
 143
 144 /*
 145  * Conditional Compilation directives for this driver:
 146  *
 147  * IPS_DEBUG            - Turn on debugging info
 148  *
 149  * Parameters:
 150  *
 151  * debug:<number>       - Set debug level to <number>
 152  *                        NOTE: only works when IPS_DEBUG compile directive is used.
 153  *       1              - Normal debug messages
 154  *       2              - Verbose debug messages
 155  *       11             - Method trace (non interrupt)
 156  *       12             - Method trace (includes interrupt)
 157  *
 158  * noi2o                - Don't use I2O Queues (ServeRAID 4 only)
 159  * nommap               - Don't use memory mapped I/O
 160  * ioctlsize            - Initial size of the IOCTL buffer
 161  */
 162
 163 #include <asm/io.h>
 164 #include <asm/byteorder.h>
 165 #include <asm/page.h>
 166 #include <linux/stddef.h>
 167 #include <linux/version.h>
 168 #include <linux/string.h>
 169 #include <linux/errno.h>
 170 #include <linux/kernel.h>
 171 #include <linux/ioport.h>
 172 #include <linux/slab.h>
 173 #include <linux/delay.h>
 174 #include <linux/pci.h>
 175 #include <linux/proc_fs.h>
 176 #include <linux/reboot.h>
 177 #include <linux/interrupt.h>
 178
 179 #include <linux/blkdev.h>
 180 #include <linux/types.h>
 181
 182 #include <scsi/sg.h>
 183
 184 #include "scsi.h"
 185
 186 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,5,0)
 187 #include "hosts.h"
 188 #else
 189 #include <scsi/scsi_host.h>
 190 #endif
 191
 192 #include "ips.h"
 193
 194 #include <linux/module.h>
 195
 196 #include <linux/stat.h>
 197 #include <linux/config.h>
 198
 199 #include <linux/spinlock.h>
 200 #include <linux/init.h>
 201
 202 #include <linux/smp.h>
 203
 204 #ifdef MODULE
 205 static char *ips = NULL;
 206 module_param(ips, charp, 0);
 207 #endif
 208
 209 /*
 210  * DRIVER_VER
 211  */
 212 #define IPS_VERSION_HIGH        "7.12"
 213 #define IPS_VERSION_LOW         ".02 "
 214
 215 #if !defined(__i386__) && !defined(__ia64__) && !defined(__x86_64__)
 216 #warning "This driver has only been tested on the x86/ia64/x86_64 platforms"
 217 #endif
 218
 219 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,5,0)
 220 #include <linux/blk.h>
 221 #include "sd.h"
 222 #define IPS_LOCK_SAVE(lock,flags) spin_lock_irqsave(&io_request_lock,flags)
 223 #define IPS_UNLOCK_RESTORE(lock,flags) spin_unlock_irqrestore(&io_request_lock,flags)
 224 #ifndef __devexit_p
 225 #define __devexit_p(x) x
 226 #endif
 227 #else
 228 #define IPS_LOCK_SAVE(lock,flags) do{spin_lock(lock);(void)flags;}while(0)
 229 #define IPS_UNLOCK_RESTORE(lock,flags) do{spin_unlock(lock);(void)flags;}while(0)
 230 #endif
 231
 232 #define IPS_DMA_DIR(scb) ((!scb->scsi_cmd || ips_is_passthru(scb->scsi_cmd) || \
 233                          DMA_NONE == scb->scsi_cmd->sc_data_direction) ? \
 234                          PCI_DMA_BIDIRECTIONAL : \
 235                          scb->scsi_cmd->sc_data_direction)
 236
 237 #ifdef IPS_DEBUG
 238 #define METHOD_TRACE(s, i)    if (ips_debug >= (i+10)) printk(KERN_NOTICE s "\n");
 239 #define DEBUG(i, s)           if (ips_debug >= i) printk(KERN_NOTICE s "\n");
 240 #define DEBUG_VAR(i, s, v...) if (ips_debug >= i) printk(KERN_NOTICE s "\n", v);
 241 #else
 242 #define METHOD_TRACE(s, i)
 243 #define DEBUG(i, s)
 244 #define DEBUG_VAR(i, s, v...)
 245 #endif
 246
 247 /*
 248  * Function prototypes
 249  */
 250 static int ips_detect(Scsi_Host_Template *);
 251 static int ips_release(struct Scsi_Host *);
 252 static int ips_eh_abort(Scsi_Cmnd *);
 253 static int ips_eh_reset(Scsi_Cmnd *);
 254 static int ips_queue(Scsi_Cmnd *, void (*)(Scsi_Cmnd *));
 255 static const char *ips_info(struct Scsi_Host *);
 256 static irqreturn_t do_ipsintr(int, void *, struct pt_regs *);
 257 static int ips_hainit(ips_ha_t *);
 258 static int ips_map_status(ips_ha_t *, ips_scb_t *, ips_stat_t *);
 259 static int ips_send_wait(ips_ha_t *, ips_scb_t *, int, int);
 260 static int ips_send_cmd(ips_ha_t *, ips_scb_t *);
 261 static int ips_online(ips_ha_t *, ips_scb_t *);
 262 static int ips_inquiry(ips_ha_t *, ips_scb_t *);
 263 static int ips_rdcap(ips_ha_t *, ips_scb_t *);
 264 static int ips_msense(ips_ha_t *, ips_scb_t *);
 265 static int ips_reqsen(ips_ha_t *, ips_scb_t *);
 266 static int ips_deallocatescbs(ips_ha_t *, int);
 267 static int ips_allocatescbs(ips_ha_t *);
 268 static int ips_reset_copperhead(ips_ha_t *);
 269 static int ips_reset_copperhead_memio(ips_ha_t *);
 270 static int ips_reset_morpheus(ips_ha_t *);
 271 static int ips_issue_copperhead(ips_ha_t *, ips_scb_t *);
 272 static int ips_issue_copperhead_memio(ips_ha_t *, ips_scb_t *);
 273 static int ips_issue_i2o(ips_ha_t *, ips_scb_t *);
 274 static int ips_issue_i2o_memio(ips_ha_t *, ips_scb_t *);
 275 static int ips_isintr_copperhead(ips_ha_t *);
 276 static int ips_isintr_copperhead_memio(ips_ha_t *);
 277 static int ips_isintr_morpheus(ips_ha_t *);
 278 static int ips_wait(ips_ha_t *, int, int);
 279 static int ips_write_driver_status(ips_ha_t *, int);
 280 static int ips_read_adapter_status(ips_ha_t *, int);
 281 static int ips_read_subsystem_parameters(ips_ha_t *, int);
 282 static int ips_read_config(ips_ha_t *, int);
 283 static int ips_clear_adapter(ips_ha_t *, int);
 284 static int ips_readwrite_page5(ips_ha_t *, int, int);
 285 static int ips_init_copperhead(ips_ha_t *);
 286 static int ips_init_copperhead_memio(ips_ha_t *);
 287 static int ips_init_morpheus(ips_ha_t *);
 288 static int ips_isinit_copperhead(ips_ha_t *);
 289 static int ips_isinit_copperhead_memio(ips_ha_t *);
 290 static int ips_isinit_morpheus(ips_ha_t *);
 291 static int ips_erase_bios(ips_ha_t *);
 292 static int ips_program_bios(ips_ha_t *, char *, uint32_t, uint32_t);
 293 static int ips_verify_bios(ips_ha_t *, char *, uint32_t, uint32_t);
 294 static int ips_erase_bios_memio(ips_ha_t *);
 295 static int ips_program_bios_memio(ips_ha_t *, char *, uint32_t, uint32_t);
 296 static int ips_verify_bios_memio(ips_ha_t *, char *, uint32_t, uint32_t);
 297 static int ips_flash_copperhead(ips_ha_t *, ips_passthru_t *, ips_scb_t *);
 298 static int ips_flash_bios(ips_ha_t *, ips_passthru_t *, ips_scb_t *);
 299 static int ips_flash_firmware(ips_ha_t *, ips_passthru_t *, ips_scb_t *);
 300 static void ips_free_flash_copperhead(ips_ha_t * ha);
 301 static void ips_get_bios_version(ips_ha_t *, int);
 302 static void ips_identify_controller(ips_ha_t *);
 303 static void ips_chkstatus(ips_ha_t *, IPS_STATUS *);
 304 static void ips_enable_int_copperhead(ips_ha_t *);
 305 static void ips_enable_int_copperhead_memio(ips_ha_t *);
 306 static void ips_enable_int_morpheus(ips_ha_t *);
 307 static int ips_intr_copperhead(ips_ha_t *);
 308 static int ips_intr_morpheus(ips_ha_t *);
 309 static void ips_next(ips_ha_t *, int);
 310 static void ipsintr_blocking(ips_ha_t *, struct ips_scb *);
 311 static void ipsintr_done(ips_ha_t *, struct ips_scb *);
 312 static void ips_done(ips_ha_t *, ips_scb_t *);
 313 static void ips_free(ips_ha_t *);
 314 static void ips_init_scb(ips_ha_t *, ips_scb_t *);
 315 static void ips_freescb(ips_ha_t *, ips_scb_t *);
 316 static void ips_setup_funclist(ips_ha_t *);
 317 static void ips_statinit(ips_ha_t *);
 318 static void ips_statinit_memio(ips_ha_t *);
 319 static void ips_fix_ffdc_time(ips_ha_t *, ips_scb_t *, time_t);
 320 static void ips_ffdc_reset(ips_ha_t *, int);
 321 static void ips_ffdc_time(ips_ha_t *);
 322 static uint32_t ips_statupd_copperhead(ips_ha_t *);
 323 static uint32_t ips_statupd_copperhead_memio(ips_ha_t *);
 324 static uint32_t ips_statupd_morpheus(ips_ha_t *);
 325 static ips_scb_t *ips_getscb(ips_ha_t *);
 326 static void ips_putq_scb_head(ips_scb_queue_t *, ips_scb_t *);
 327 static void ips_putq_wait_tail(ips_wait_queue_t *, Scsi_Cmnd *);
 328 static void ips_putq_copp_tail(ips_copp_queue_t *,
 329                                       ips_copp_wait_item_t *);
 330 static ips_scb_t *ips_removeq_scb_head(ips_scb_queue_t *);
 331 static ips_scb_t *ips_removeq_scb(ips_scb_queue_t *, ips_scb_t *);
 332 static Scsi_Cmnd *ips_removeq_wait_head(ips_wait_queue_t *);
 333 static Scsi_Cmnd *ips_removeq_wait(ips_wait_queue_t *, Scsi_Cmnd *);
 334 static ips_copp_wait_item_t *ips_removeq_copp(ips_copp_queue_t *,
 335                                                      ips_copp_wait_item_t *);
 336 static ips_copp_wait_item_t *ips_removeq_copp_head(ips_copp_queue_t *);
 337
 338 static int ips_is_passthru(Scsi_Cmnd *);
 339 static int ips_make_passthru(ips_ha_t *, Scsi_Cmnd *, ips_scb_t *, int);
 340 static int ips_usrcmd(ips_ha_t *, ips_passthru_t *, ips_scb_t *);
 341 static void ips_cleanup_passthru(ips_ha_t *, ips_scb_t *);
 342 static void ips_scmd_buf_write(Scsi_Cmnd * scmd, void *data,
 343                                unsigned int count);
 344 static void ips_scmd_buf_read(Scsi_Cmnd * scmd, void *data, unsigned int count);
 345
 346 static int ips_proc_info(struct Scsi_Host *, char *, char **, off_t, int, int);
 347 static int ips_host_info(ips_ha_t *, char *, off_t, int);
 348 static void copy_mem_info(IPS_INFOSTR *, char *, int);
 349 static int copy_info(IPS_INFOSTR *, char *, ...);
 350 static int ips_get_version_info(ips_ha_t * ha, dma_addr_t, int intr);
 351 static void ips_version_check(ips_ha_t * ha, int intr);
 352 static int ips_abort_init(ips_ha_t * ha, int index);
 353 static int ips_init_phase2(int index);
 354
 355 static int ips_init_phase1(struct pci_dev *pci_dev, int *indexPtr);
 356 static int ips_register_scsi(int index);
 357
 358 static int  ips_poll_for_flush_complete(ips_ha_t * ha);
 359 static void ips_flush_and_reset(ips_ha_t *ha);
 360
 361 /*
 362  * global variables
 363  */
 364 static const char ips_name[] = "ips";
 365 static struct Scsi_Host *ips_sh[IPS_MAX_ADAPTERS];      /* Array of host controller structures */
 366 static ips_ha_t *ips_ha[IPS_MAX_ADAPTERS];      /* Array of HA structures */
 367 static unsigned int ips_next_controller;
 368 static unsigned int ips_num_controllers;
 369 static unsigned int ips_released_controllers;
 370 static int ips_hotplug;
 371 static int ips_cmd_timeout = 60;
 372 static int ips_reset_timeout = 60 * 5;
 373 static int ips_force_memio = 1;         /* Always use Memory Mapped I/O    */
 374 static int ips_force_i2o = 1;   /* Always use I2O command delivery */
 375 static int ips_ioctlsize = IPS_IOCTL_SIZE;      /* Size of the ioctl buffer        */
 376 static int ips_cd_boot;                 /* Booting from Manager CD         */
 377 static char *ips_FlashData = NULL;      /* CD Boot - Flash Data Buffer      */
 378 static dma_addr_t ips_flashbusaddr;
 379 static long ips_FlashDataInUse;         /* CD Boot - Flash Data In Use Flag */
 380 static uint32_t MaxLiteCmds = 32;       /* Max Active Cmds for a Lite Adapter */
 381 static Scsi_Host_Template ips_driver_template = {
 382         .detect                 = ips_detect,
 383         .release                = ips_release,
 384         .info                   = ips_info,
 385         .queuecommand           = ips_queue,
 386         .eh_abort_handler       = ips_eh_abort,
 387         .eh_host_reset_handler  = ips_eh_reset,
 388         .proc_name              = "ips",
 389 #if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 390         .proc_info              = ips_proc_info,
 391         .slave_configure        = ips_slave_configure,
 392 #else
 393         .proc_info              = ips_proc24_info,
 394         .select_queue_depths    = ips_select_queue_depth,
 395 #endif
 396         .bios_param             = ips_biosparam,
 397         .this_id                = -1,
 398         .sg_tablesize           = IPS_MAX_SG,
 399         .cmd_per_lun            = 3,
 400         .use_clustering         = ENABLE_CLUSTERING,
 401 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
 402         .use_new_eh_code        = 1,
 403 #endif
 404 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,20)  &&  LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
 405     .highmem_io          = 1,
 406 #endif
 407 };
 408
 409 static IPS_DEFINE_COMPAT_TABLE( Compatable );   /* Version Compatability Table      */
 410
 411
 412 /* This table describes all ServeRAID Adapters */
 413 static struct  pci_device_id  ips_pci_table[] = {
 414         { 0x1014, 0x002E, PCI_ANY_ID, PCI_ANY_ID, 0, 0 },
 415         { 0x1014, 0x01BD, PCI_ANY_ID, PCI_ANY_ID, 0, 0 },
 416         { 0x9005, 0x0250, PCI_ANY_ID, PCI_ANY_ID, 0, 0 },
 417         { 0, }
 418 };
 419
 420 MODULE_DEVICE_TABLE( pci, ips_pci_table );
 421
 422 static char ips_hot_plug_name[] = "ips";
 423
 424 static int __devinit  ips_insert_device(struct pci_dev *pci_dev, const struct pci_device_id *ent);
 425 static void __devexit ips_remove_device(struct pci_dev *pci_dev);
 426
 427 static struct pci_driver ips_pci_driver = {
 428         .name           = ips_hot_plug_name,
 429         .id_table       = ips_pci_table,
 430         .probe          = ips_insert_device,
 431         .remove         = __devexit_p(ips_remove_device),
 432 };
 433
 434
 435 /*
 436  * Necessary forward function protoypes
 437  */
 438 static int ips_halt(struct notifier_block *nb, ulong event, void *buf);
 439
 440 #define MAX_ADAPTER_NAME 15
 441
 442 static char ips_adapter_name[][30] = {
 443         "ServeRAID",
 444         "ServeRAID II",
 445         "ServeRAID on motherboard",
 446         "ServeRAID on motherboard",
 447         "ServeRAID 3H",
 448         "ServeRAID 3L",
 449         "ServeRAID 4H",
 450         "ServeRAID 4M",
 451         "ServeRAID 4L",
 452         "ServeRAID 4Mx",
 453         "ServeRAID 4Lx",
 454         "ServeRAID 5i",
 455         "ServeRAID 5i",
 456         "ServeRAID 6M",
 457         "ServeRAID 6i",
 458         "ServeRAID 7t",
 459         "ServeRAID 7k",
 460         "ServeRAID 7M"
 461 };
 462
 463 static struct notifier_block ips_notifier = {
 464         ips_halt, NULL, 0
 465 };
 466
 467 /*
 468  * Direction table
 469  */
 470 static char ips_command_direction[] = {
 471         IPS_DATA_NONE, IPS_DATA_NONE, IPS_DATA_IN, IPS_DATA_IN, IPS_DATA_OUT,
 472         IPS_DATA_IN, IPS_DATA_IN, IPS_DATA_OUT, IPS_DATA_IN, IPS_DATA_UNK,
 473         IPS_DATA_OUT, IPS_DATA_OUT, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
 474         IPS_DATA_IN, IPS_DATA_NONE, IPS_DATA_NONE, IPS_DATA_IN, IPS_DATA_OUT,
 475         IPS_DATA_IN, IPS_DATA_OUT, IPS_DATA_NONE, IPS_DATA_NONE, IPS_DATA_OUT,
 476         IPS_DATA_NONE, IPS_DATA_IN, IPS_DATA_NONE, IPS_DATA_IN, IPS_DATA_OUT,
 477         IPS_DATA_NONE, IPS_DATA_UNK, IPS_DATA_IN, IPS_DATA_UNK, IPS_DATA_IN,
 478         IPS_DATA_UNK, IPS_DATA_OUT, IPS_DATA_IN, IPS_DATA_UNK, IPS_DATA_UNK,
 479         IPS_DATA_IN, IPS_DATA_IN, IPS_DATA_OUT, IPS_DATA_NONE, IPS_DATA_UNK,
 480         IPS_DATA_IN, IPS_DATA_OUT, IPS_DATA_OUT, IPS_DATA_OUT, IPS_DATA_OUT,
 481         IPS_DATA_OUT, IPS_DATA_NONE, IPS_DATA_IN, IPS_DATA_NONE, IPS_DATA_NONE,
 482         IPS_DATA_IN, IPS_DATA_OUT, IPS_DATA_OUT, IPS_DATA_OUT, IPS_DATA_OUT,
 483         IPS_DATA_IN, IPS_DATA_OUT, IPS_DATA_IN, IPS_DATA_OUT, IPS_DATA_OUT,
 484         IPS_DATA_OUT, IPS_DATA_IN, IPS_DATA_IN, IPS_DATA_IN, IPS_DATA_NONE,
 485         IPS_DATA_UNK, IPS_DATA_NONE, IPS_DATA_NONE, IPS_DATA_NONE, IPS_DATA_UNK,
 486         IPS_DATA_NONE, IPS_DATA_OUT, IPS_DATA_IN, IPS_DATA_UNK, IPS_DATA_UNK,
 487         IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
 488         IPS_DATA_OUT, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
 489         IPS_DATA_IN, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
 490         IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
 491         IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
 492         IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
 493         IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
 494         IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
 495         IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
 496         IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
 497         IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
 498         IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
 499         IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
 500         IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
 501         IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
 502         IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
 503         IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
 504         IPS_DATA_NONE, IPS_DATA_NONE, IPS_DATA_UNK, IPS_DATA_IN, IPS_DATA_NONE,
 505         IPS_DATA_OUT, IPS_DATA_UNK, IPS_DATA_NONE, IPS_DATA_UNK, IPS_DATA_OUT,
 506         IPS_DATA_OUT, IPS_DATA_OUT, IPS_DATA_OUT, IPS_DATA_OUT, IPS_DATA_NONE,
 507         IPS_DATA_UNK, IPS_DATA_IN, IPS_DATA_OUT, IPS_DATA_IN, IPS_DATA_IN,
 508         IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
 509         IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
 510         IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
 511         IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
 512         IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
 513         IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
 514         IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
 515         IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
 516         IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
 517         IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_OUT,
 518         IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
 519         IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
 520         IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
 521         IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK
 522 };
 523
 524
 525 /****************************************************************************/
 526 /*                                                                          */
 527 /* Routine Name: ips_setup                                                  */
 528 /*                                                                          */
 529 /* Routine Description:                                                     */
 530 /*                                                                          */
 531 /*   setup parameters to the driver                                         */
 532 /*                                                                          */
 533 /****************************************************************************/
 534 static int
 535 ips_setup(char *ips_str)
 536 {
 537
 538         int i;
 539         char *key;
 540         char *value;
 541         IPS_OPTION options[] = {
 542                 {"noi2o", &ips_force_i2o, 0},
 543                 {"nommap", &ips_force_memio, 0},
 544                 {"ioctlsize", &ips_ioctlsize, IPS_IOCTL_SIZE},
 545                 {"cdboot", &ips_cd_boot, 0},
 546                 {"maxcmds", &MaxLiteCmds, 32},
 547         };
 548
 549         /* Don't use strtok() anymore ( if 2.4 Kernel or beyond ) */
 550         /* Search for value */
 551         while ((key = strsep(&ips_str, ",."))) {
 552                 if (!*key)
 553                         continue;
 554                 value = strchr(key, ':');
 555                 if (value)
 556                         *value++ = '\0';
 557                 /*
 558                  * We now have key/value pairs.
 559                  * Update the variables
 560                  */
 561                 for (i = 0; i < (sizeof (options) / sizeof (options[0])); i++) {
 562                         if (strnicmp
 563                             (key, options[i].option_name,
 564                              strlen(options[i].option_name)) == 0) {
 565                                 if (value)
 566                                         *options[i].option_flag =
 567                                             simple_strtoul(value, NULL, 0);
 568                                 else
 569                                         *options[i].option_flag =
 570                                             options[i].option_value;
 571                                 break;
 572                         }
 573                 }
 574         }
 575
 576         return (1);
 577 }
 578
 579 __setup("ips=", ips_setup);
 580
 581 /****************************************************************************/
 582 /*                                                                          */
 583 /* Routine Name: ips_detect                                                 */
 584 /*                                                                          */
 585 /* Routine Description:                                                     */
 586 /*                                                                          */
 587 /*   Detect and initialize the driver                                       */
 588 /*                                                                          */
 589 /* NOTE: this routine is called under the io_request_lock spinlock          */
 590 /*                                                                          */
 591 /****************************************************************************/
 592 static int
 593 ips_detect(Scsi_Host_Template * SHT)
 594 {
 595         int i;
 596
 597         METHOD_TRACE("ips_detect", 1);
 598
 599 #ifdef MODULE
 600         if (ips)
 601                 ips_setup(ips);
 602 #endif
 603
 604         for (i = 0; i < ips_num_controllers; i++) {
 605                 if (ips_register_scsi(i))
 606                         ips_free(ips_ha[i]);
 607                 ips_released_controllers++;
 608         }
 609         ips_hotplug = 1;
 610         return (ips_num_controllers);
 611 }
 612
 613 /****************************************************************************/
 614 /*   configure the function pointers to use the functions that will work    */
 615 /*   with the found version of the adapter                                  */
 616 /****************************************************************************/
 617 static void
 618 ips_setup_funclist(ips_ha_t * ha)
 619 {
 620
 621         /*
 622          * Setup Functions
 623          */
 624         if (IPS_IS_MORPHEUS(ha) || IPS_IS_MARCO(ha)) {
 625                 /* morpheus / marco / sebring */
 626                 ha->func.isintr = ips_isintr_morpheus;
 627                 ha->func.isinit = ips_isinit_morpheus;
 628                 ha->func.issue = ips_issue_i2o_memio;
 629                 ha->func.init = ips_init_morpheus;
 630                 ha->func.statupd = ips_statupd_morpheus;
 631                 ha->func.reset = ips_reset_morpheus;
 632                 ha->func.intr = ips_intr_morpheus;
 633                 ha->func.enableint = ips_enable_int_morpheus;
 634         } else if (IPS_USE_MEMIO(ha)) {
 635                 /* copperhead w/MEMIO */
 636                 ha->func.isintr = ips_isintr_copperhead_memio;
 637                 ha->func.isinit = ips_isinit_copperhead_memio;
 638                 ha->func.init = ips_init_copperhead_memio;
 639                 ha->func.statupd = ips_statupd_copperhead_memio;
 640                 ha->func.statinit = ips_statinit_memio;
 641                 ha->func.reset = ips_reset_copperhead_memio;
 642                 ha->func.intr = ips_intr_copperhead;
 643                 ha->func.erasebios = ips_erase_bios_memio;
 644                 ha->func.programbios = ips_program_bios_memio;
 645                 ha->func.verifybios = ips_verify_bios_memio;
 646                 ha->func.enableint = ips_enable_int_copperhead_memio;
 647                 if (IPS_USE_I2O_DELIVER(ha))
 648                         ha->func.issue = ips_issue_i2o_memio;
 649                 else
 650                         ha->func.issue = ips_issue_copperhead_memio;
 651         } else {
 652                 /* copperhead */
 653                 ha->func.isintr = ips_isintr_copperhead;
 654                 ha->func.isinit = ips_isinit_copperhead;
 655                 ha->func.init = ips_init_copperhead;
 656                 ha->func.statupd = ips_statupd_copperhead;
 657                 ha->func.statinit = ips_statinit;
 658                 ha->func.reset = ips_reset_copperhead;
 659                 ha->func.intr = ips_intr_copperhead;
 660                 ha->func.erasebios = ips_erase_bios;
 661                 ha->func.programbios = ips_program_bios;
 662                 ha->func.verifybios = ips_verify_bios;
 663                 ha->func.enableint = ips_enable_int_copperhead;
 664
 665                 if (IPS_USE_I2O_DELIVER(ha))
 666                         ha->func.issue = ips_issue_i2o;
 667                 else
 668                         ha->func.issue = ips_issue_copperhead;
 669         }
 670 }
 671
 672 /****************************************************************************/
 673 /*                                                                          */
 674 /* Routine Name: ips_release                                                */
 675 /*                                                                          */
 676 /* Routine Description:                                                     */
 677 /*                                                                          */
 678 /*   Remove a driver                                                        */
 679 /*                                                                          */
 680 /****************************************************************************/
 681 static int
 682 ips_release(struct Scsi_Host *sh)
 683 {
 684         ips_scb_t *scb;
 685         ips_ha_t *ha;
 686         int i;
 687
 688         METHOD_TRACE("ips_release", 1);
 689
 690         for (i = 0; i < IPS_MAX_ADAPTERS && ips_sh[i] != sh; i++) ;
 691
 692         if (i == IPS_MAX_ADAPTERS) {
 693                 printk(KERN_WARNING
 694                        "(%s) release, invalid Scsi_Host pointer.\n", ips_name);
 695                 BUG();
 696                 return (FALSE);
 697         }
 698
 699         ha = IPS_HA(sh);
 700
 701         if (!ha)
 702                 return (FALSE);
 703
 704         /* flush the cache on the controller */
 705         scb = &ha->scbs[ha->max_cmds - 1];
 706
 707         ips_init_scb(ha, scb);
 708
 709         scb->timeout = ips_cmd_timeout;
 710         scb->cdb[0] = IPS_CMD_FLUSH;
 711
 712         scb->cmd.flush_cache.op_code = IPS_CMD_FLUSH;
 713         scb->cmd.flush_cache.command_id = IPS_COMMAND_ID(ha, scb);
 714         scb->cmd.flush_cache.state = IPS_NORM_STATE;
 715         scb->cmd.flush_cache.reserved = 0;
 716         scb->cmd.flush_cache.reserved2 = 0;
 717         scb->cmd.flush_cache.reserved3 = 0;
 718         scb->cmd.flush_cache.reserved4 = 0;
 719
 720         IPS_PRINTK(KERN_WARNING, ha->pcidev, "Flushing Cache.\n");
 721
 722         /* send command */
 723         if (ips_send_wait(ha, scb, ips_cmd_timeout, IPS_INTR_ON) == IPS_FAILURE)
 724                 IPS_PRINTK(KERN_WARNING, ha->pcidev, "Incomplete Flush.\n");
 725
 726         IPS_PRINTK(KERN_WARNING, ha->pcidev, "Flushing Complete.\n");
 727
 728         ips_sh[i] = NULL;
 729         ips_ha[i] = NULL;
 730
 731         /* free extra memory */
 732         ips_free(ha);
 733
 734         /* Free I/O Region */
 735         if (ha->io_addr)
 736                 release_region(ha->io_addr, ha->io_len);
 737
 738         /* free IRQ */
 739         free_irq(ha->irq, ha);
 740
 741         IPS_REMOVE_HOST(sh);
 742         scsi_host_put(sh);
 743
 744         ips_released_controllers++;
 745
 746         return (FALSE);
 747 }
 748
 749 /****************************************************************************/
 750 /*                                                                          */
 751 /* Routine Name: ips_halt                                                   */
 752 /*                                                                          */
 753 /* Routine Description:                                                     */
 754 /*                                                                          */
 755 /*   Perform cleanup when the system reboots                                */
 756 /*                                                                          */
 757 /****************************************************************************/
 758 static int
 759 ips_halt(struct notifier_block *nb, ulong event, void *buf)
 760 {
 761         ips_scb_t *scb;
 762         ips_ha_t *ha;
 763         int i;
 764
 765         if ((event != SYS_RESTART) && (event != SYS_HALT) &&
 766             (event != SYS_POWER_OFF))
 767                 return (NOTIFY_DONE);
 768
 769         for (i = 0; i < ips_next_controller; i++) {
 770                 ha = (ips_ha_t *) ips_ha[i];
 771
 772                 if (!ha)
 773                         continue;
 774
 775                 if (!ha->active)
 776                         continue;
 777
 778                 /* flush the cache on the controller */
 779                 scb = &ha->scbs[ha->max_cmds - 1];
 780
 781                 ips_init_scb(ha, scb);
 782
 783                 scb->timeout = ips_cmd_timeout;
 784                 scb->cdb[0] = IPS_CMD_FLUSH;
 785
 786                 scb->cmd.flush_cache.op_code = IPS_CMD_FLUSH;
 787                 scb->cmd.flush_cache.command_id = IPS_COMMAND_ID(ha, scb);
 788                 scb->cmd.flush_cache.state = IPS_NORM_STATE;
 789                 scb->cmd.flush_cache.reserved = 0;
 790                 scb->cmd.flush_cache.reserved2 = 0;
 791                 scb->cmd.flush_cache.reserved3 = 0;
 792                 scb->cmd.flush_cache.reserved4 = 0;
 793
 794                 IPS_PRINTK(KERN_WARNING, ha->pcidev, "Flushing Cache.\n");
 795
 796                 /* send command */
 797                 if (ips_send_wait(ha, scb, ips_cmd_timeout, IPS_INTR_ON) ==
 798                     IPS_FAILURE)
 799                         IPS_PRINTK(KERN_WARNING, ha->pcidev,
 800                                    "Incomplete Flush.\n");
 801                 else
 802                         IPS_PRINTK(KERN_WARNING, ha->pcidev,
 803                                    "Flushing Complete.\n");
 804         }
 805
 806         return (NOTIFY_OK);
 807 }
 808
 809 /****************************************************************************/
 810 /*                                                                          */
 811 /* Routine Name: ips_eh_abort                                               */
 812 /*                                                                          */
 813 /* Routine Description:                                                     */
 814 /*                                                                          */
 815 /*   Abort a command (using the new error code stuff)                       */
 816 /* Note: this routine is called under the io_request_lock                   */
 817 /****************************************************************************/
 818 int
 819 ips_eh_abort(Scsi_Cmnd * SC)
 820 {
 821         ips_ha_t *ha;
 822         ips_copp_wait_item_t *item;
 823         int ret;
 824         unsigned long cpu_flags;
 825         struct Scsi_Host *host;
 826
 827         METHOD_TRACE("ips_eh_abort", 1);
 828
 829         if (!SC)
 830                 return (FAILED);
 831
 832         host = SC->device->host;
 833         ha = (ips_ha_t *) SC->device->host->hostdata;
 834
 835         if (!ha)
 836                 return (FAILED);
 837
 838         if (!ha->active)
 839                 return (FAILED);
 840
 841         IPS_LOCK_SAVE(host->host_lock, cpu_flags);
 842
 843         /* See if the command is on the copp queue */
 844         item = ha->copp_waitlist.head;
 845         while ((item) && (item->scsi_cmd != SC))
 846                 item = item->next;
 847
 848         if (item) {
 849                 /* Found it */
 850                 ips_removeq_copp(&ha->copp_waitlist, item);
 851                 ret = (SUCCESS);
 852
 853                 /* See if the command is on the wait queue */
 854         } else if (ips_removeq_wait(&ha->scb_waitlist, SC)) {
 855                 /* command not sent yet */
 856                 ret = (SUCCESS);
 857         } else {
 858                 /* command must have already been sent */
 859                 ret = (FAILED);
 860         }
 861
 862         IPS_UNLOCK_RESTORE(host->host_lock, cpu_flags);
 863         return ret;
 864 }
 865
 866 /****************************************************************************/
 867 /*                                                                          */
 868 /* Routine Name: ips_eh_reset                                               */
 869 /*                                                                          */
 870 /* Routine Description:                                                     */
 871 /*                                                                          */
 872 /*   Reset the controller (with new eh error code)                          */
 873 /*                                                                          */
 874 /* NOTE: this routine is called under the io_request_lock spinlock          */
 875 /*                                                                          */
 876 /****************************************************************************/
 877 static int
 878 __ips_eh_reset(Scsi_Cmnd * SC)
 879 {
 880         int ret;
 881         int i;
 882         ips_ha_t *ha;
 883         ips_scb_t *scb;
 884         ips_copp_wait_item_t *item;
 885
 886         METHOD_TRACE("ips_eh_reset", 1);
 887
 888 #ifdef NO_IPS_RESET
 889         return (FAILED);
 890 #else
 891
 892         if (!SC) {
 893                 DEBUG(1, "Reset called with NULL scsi command");
 894
 895                 return (FAILED);
 896         }
 897
 898         ha = (ips_ha_t *) SC->device->host->hostdata;
 899
 900         if (!ha) {
 901                 DEBUG(1, "Reset called with NULL ha struct");
 902
 903                 return (FAILED);
 904         }
 905
 906         if (!ha->active)
 907                 return (FAILED);
 908
 909         /* See if the command is on the copp queue */
 910         item = ha->copp_waitlist.head;
 911         while ((item) && (item->scsi_cmd != SC))
 912                 item = item->next;
 913
 914         if (item) {
 915                 /* Found it */
 916                 ips_removeq_copp(&ha->copp_waitlist, item);
 917                 return (SUCCESS);
 918         }
 919
 920         /* See if the command is on the wait queue */
 921         if (ips_removeq_wait(&ha->scb_waitlist, SC)) {
 922                 /* command not sent yet */
 923                 return (SUCCESS);
 924         }
 925
 926         /* An explanation for the casual observer:                              */
 927         /* Part of the function of a RAID controller is automatic error         */
 928         /* detection and recovery.  As such, the only problem that physically   */
 929         /* resetting an adapter will ever fix is when, for some reason,         */
 930         /* the driver is not successfully communicating with the adapter.       */
 931         /* Therefore, we will attempt to flush this adapter.  If that succeeds, */
 932         /* then there's no real purpose in a physical reset. This will complete */
 933         /* much faster and avoids any problems that might be caused by a        */
 934         /* physical reset ( such as having to fail all the outstanding I/O's ). */
 935
 936         if (ha->ioctl_reset == 0) {     /* IF Not an IOCTL Requested Reset */
 937                 scb = &ha->scbs[ha->max_cmds - 1];
 938
 939                 ips_init_scb(ha, scb);
 940
 941                 scb->timeout = ips_cmd_timeout;
 942                 scb->cdb[0] = IPS_CMD_FLUSH;
 943
 944                 scb->cmd.flush_cache.op_code = IPS_CMD_FLUSH;
 945                 scb->cmd.flush_cache.command_id = IPS_COMMAND_ID(ha, scb);
 946                 scb->cmd.flush_cache.state = IPS_NORM_STATE;
 947                 scb->cmd.flush_cache.reserved = 0;
 948                 scb->cmd.flush_cache.reserved2 = 0;
 949                 scb->cmd.flush_cache.reserved3 = 0;
 950                 scb->cmd.flush_cache.reserved4 = 0;
 951
 952                 /* Attempt the flush command */
 953                 ret = ips_send_wait(ha, scb, ips_cmd_timeout, IPS_INTR_IORL);
 954                 if (ret == IPS_SUCCESS) {
 955                         IPS_PRINTK(KERN_NOTICE, ha->pcidev,
 956                                    "Reset Request - Flushed Cache\n");
 957                         return (SUCCESS);
 958                 }
 959         }
 960
 961         /* Either we can't communicate with the adapter or it's an IOCTL request */
 962         /* from a utility.  A physical reset is needed at this point.            */
 963
 964         ha->ioctl_reset = 0;    /* Reset the IOCTL Requested Reset Flag */
 965
 966         /*
 967          * command must have already been sent
 968          * reset the controller
 969          */
 970         IPS_PRINTK(KERN_NOTICE, ha->pcidev, "Resetting controller.\n");
 971         ret = (*ha->func.reset) (ha);
 972
 973         if (!ret) {
 974                 Scsi_Cmnd *scsi_cmd;
 975
 976                 IPS_PRINTK(KERN_NOTICE, ha->pcidev,
 977                            "Controller reset failed - controller now offline.\n");
 978
 979                 /* Now fail all of the active commands */
 980                 DEBUG_VAR(1, "(%s%d) Failing active commands",
 981                           ips_name, ha->host_num);
 982
 983                 while ((scb = ips_removeq_scb_head(&ha->scb_activelist))) {
 984                         scb->scsi_cmd->result = DID_ERROR << 16;
 985                         scb->scsi_cmd->scsi_done(scb->scsi_cmd);
 986                         ips_freescb(ha, scb);
 987                 }
 988
 989                 /* Now fail all of the pending commands */
 990                 DEBUG_VAR(1, "(%s%d) Failing pending commands",
 991                           ips_name, ha->host_num);
 992
 993                 while ((scsi_cmd = ips_removeq_wait_head(&ha->scb_waitlist))) {
 994                         scsi_cmd->result = DID_ERROR;
 995                         scsi_cmd->scsi_done(scsi_cmd);
 996                 }
 997
 998                 ha->active = FALSE;
 999                 return (FAILED);
1000         }
1001
1002         if (!ips_clear_adapter(ha, IPS_INTR_IORL)) {
1003                 Scsi_Cmnd *scsi_cmd;
1004
1005                 IPS_PRINTK(KERN_NOTICE, ha->pcidev,
1006                            "Controller reset failed - controller now offline.\n");
1007
1008                 /* Now fail all of the active commands */
1009                 DEBUG_VAR(1, "(%s%d) Failing active commands",
1010                           ips_name, ha->host_num);
1011
1012                 while ((scb = ips_removeq_scb_head(&ha->scb_activelist))) {
1013                         scb->scsi_cmd->result = DID_ERROR << 16;
1014                         scb->scsi_cmd->scsi_done(scb->scsi_cmd);
1015                         ips_freescb(ha, scb);
1016                 }
1017
1018                 /* Now fail all of the pending commands */
1019                 DEBUG_VAR(1, "(%s%d) Failing pending commands",
1020                           ips_name, ha->host_num);
1021
1022                 while ((scsi_cmd = ips_removeq_wait_head(&ha->scb_waitlist))) {
1023                         scsi_cmd->result = DID_ERROR << 16;
1024                         scsi_cmd->scsi_done(scsi_cmd);
1025                 }
1026
1027                 ha->active = FALSE;
1028                 return (FAILED);
1029         }
1030
1031         /* FFDC */
1032         if (le32_to_cpu(ha->subsys->param[3]) & 0x300000) {
1033                 struct timeval tv;
1034
1035                 do_gettimeofday(&tv);
1036                 ha->last_ffdc = tv.tv_sec;
1037                 ha->reset_count++;
1038                 ips_ffdc_reset(ha, IPS_INTR_IORL);
1039         }
1040
1041         /* Now fail all of the active commands */
1042         DEBUG_VAR(1, "(%s%d) Failing active commands", ips_name, ha->host_num);
1043
1044         while ((scb = ips_removeq_scb_head(&ha->scb_activelist))) {
1045                 scb->scsi_cmd->result =
1046                     (DID_RESET << 16) | (SUGGEST_RETRY << 24);
1047                 scb->scsi_cmd->scsi_done(scb->scsi_cmd);
1048                 ips_freescb(ha, scb);
1049         }
1050
1051         /* Reset DCDB active command bits */
1052         for (i = 1; i < ha->nbus; i++)
1053                 ha->dcdb_active[i - 1] = 0;
1054
1055         /* Reset the number of active IOCTLs */
1056         ha->num_ioctl = 0;
1057
1058         ips_next(ha, IPS_INTR_IORL);
1059
1060         return (SUCCESS);
1061 #endif                          /* NO_IPS_RESET */
1062
1063 }
1064
1065 static int
1066 ips_eh_reset(Scsi_Cmnd * SC)
1067 {
1068         int rc;
1069
1070         spin_lock_irq(SC->device->host->host_lock);
1071         rc = __ips_eh_reset(SC);
1072         spin_unlock_irq(SC->device->host->host_lock);
1073
1074         return rc;
1075 }
1076
1077 /****************************************************************************/
1078 /*                                                                          */
1079 /* Routine Name: ips_queue                                                  */
1080 /*                                                                          */
1081 /* Routine Description:                                                     */
1082 /*                                                                          */
1083 /*   Send a command to the controller                                       */
1084 /*                                                                          */
1085 /* NOTE:                                                                    */
1086 /*    Linux obtains io_request_lock before calling this function            */
1087 /*                                                                          */
1088 /****************************************************************************/
1089 static int
1090 ips_queue(Scsi_Cmnd * SC, void (*done) (Scsi_Cmnd *))
1091 {
1092         ips_ha_t *ha;
1093         ips_passthru_t *pt;
1094
1095         METHOD_TRACE("ips_queue", 1);
1096
1097         ha = (ips_ha_t *) SC->device->host->hostdata;
1098
1099         if (!ha)
1100                 return (1);
1101
1102         if (!ha->active)
1103                 return (DID_ERROR);
1104
1105         if (ips_is_passthru(SC)) {
1106                 if (ha->copp_waitlist.count == IPS_MAX_IOCTL_QUEUE) {
1107                         SC->result = DID_BUS_BUSY << 16;
1108                         done(SC);
1109
1110                         return (0);
1111                 }
1112         } else if (ha->scb_waitlist.count == IPS_MAX_QUEUE) {
1113                 SC->result = DID_BUS_BUSY << 16;
1114                 done(SC);
1115
1116                 return (0);
1117         }
1118
1119         SC->scsi_done = done;
1120
1121         DEBUG_VAR(2, "(%s%d): ips_queue: cmd 0x%X (%d %d %d)",
1122                   ips_name,
1123                   ha->host_num,
1124                   SC->cmnd[0],
1125                   SC->device->channel, SC->device->id, SC->device->lun);
1126
1127         /* Check for command to initiator IDs */
1128         if ((scmd_channel(SC) > 0)
1129             && (scmd_id(SC) == ha->ha_id[scmd_channel(SC)])) {
1130                 SC->result = DID_NO_CONNECT << 16;
1131                 done(SC);
1132
1133                 return (0);
1134         }
1135
1136         if (ips_is_passthru(SC)) {
1137
1138                 ips_copp_wait_item_t *scratch;
1139
1140                 /* A Reset IOCTL is only sent by the boot CD in extreme cases.           */
1141                 /* There can never be any system activity ( network or disk ), but check */
1142                 /* anyway just as a good practice.                                       */
1143                 pt = (ips_passthru_t *) SC->request_buffer;
1144                 if ((pt->CoppCP.cmd.reset.op_code == IPS_CMD_RESET_CHANNEL) &&
1145                     (pt->CoppCP.cmd.reset.adapter_flag == 1)) {
1146                         if (ha->scb_activelist.count != 0) {
1147                                 SC->result = DID_BUS_BUSY << 16;
1148                                 done(SC);
1149                                 return (0);
1150                         }
1151                         ha->ioctl_reset = 1;    /* This reset request is from an IOCTL */
1152                         ips_eh_reset(SC);
1153                         SC->result = DID_OK << 16;
1154                         SC->scsi_done(SC);
1155                         return (0);
1156                 }
1157
1158                 /* allocate space for the scribble */
1159                 scratch = kmalloc(sizeof (ips_copp_wait_item_t), GFP_ATOMIC);
1160
1161                 if (!scratch) {
1162                         SC->result = DID_ERROR << 16;
1163                         done(SC);
1164
1165                         return (0);
1166                 }
1167
1168                 scratch->scsi_cmd = SC;
1169                 scratch->next = NULL;
1170
1171                 ips_putq_copp_tail(&ha->copp_waitlist, scratch);
1172         } else {
1173                 ips_putq_wait_tail(&ha->scb_waitlist, SC);
1174         }
1175
1176         ips_next(ha, IPS_INTR_IORL);
1177
1178         return (0);
1179 }
1180
1181 /****************************************************************************/
1182 /*                                                                          */
1183 /* Routine Name: ips_biosparam                                              */
1184 /*                                                                          */
1185 /* Routine Description:                                                     */
1186 /*                                                                          */
1187 /*   Set bios geometry for the controller                                   */
1188 /*                                                                          */
1189 /****************************************************************************/
1190 static int
1191 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
1192 ips_biosparam(Disk * disk, kdev_t dev, int geom[])
1193 {
1194         ips_ha_t *ha = (ips_ha_t *) disk->device->host->hostdata;
1195         unsigned long capacity = disk->capacity;
1196 #else
1197 ips_biosparam(struct scsi_device *sdev, struct block_device *bdev,
1198               sector_t capacity, int geom[])
1199 {
1200         ips_ha_t *ha = (ips_ha_t *) sdev->host->hostdata;
1201 #endif
1202         int heads;
1203         int sectors;
1204         int cylinders;
1205
1206         METHOD_TRACE("ips_biosparam", 1);
1207
1208         if (!ha)
1209                 /* ?!?! host adater info invalid */
1210                 return (0);
1211
1212         if (!ha->active)
1213                 return (0);
1214
1215         if (!ips_read_adapter_status(ha, IPS_INTR_ON))
1216                 /* ?!?! Enquiry command failed */
1217                 return (0);
1218
1219         if ((capacity > 0x400000) && ((ha->enq->ucMiscFlag & 0x8) == 0)) {
1220                 heads = IPS_NORM_HEADS;
1221                 sectors = IPS_NORM_SECTORS;
1222         } else {
1223                 heads = IPS_COMP_HEADS;
1224                 sectors = IPS_COMP_SECTORS;
1225         }
1226
1227         cylinders = (unsigned long) capacity / (heads * sectors);
1228
1229         DEBUG_VAR(2, "Geometry: heads: %d, sectors: %d, cylinders: %d",
1230                   heads, sectors, cylinders);
1231
1232         geom[0] = heads;
1233         geom[1] = sectors;
1234         geom[2] = cylinders;
1235
1236         return (0);
1237 }
1238
1239 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
1240
1241 /* ips_proc24_info is a wrapper around ips_proc_info *
1242  * for compatibility with the 2.4 scsi parameters    */
1243 static int
1244 ips_proc24_info(char *buffer, char **start, off_t offset, int length,
1245                               int hostno, int func)
1246 {
1247         int i;
1248
1249         for (i = 0; i < ips_next_controller; i++) {
1250                 if (ips_sh[i] && ips_sh[i]->host_no == hostno) {
1251                         return ips_proc_info(ips_sh[i], buffer, start,
1252                                              offset, length, func);
1253                 }
1254         }
1255         return -EINVAL;
1256 }
1257
1258 /****************************************************************************/
1259 /*                                                                          */
1260 /* Routine Name: ips_select_queue_depth                                     */
1261 /*                                                                          */
1262 /* Routine Description:                                                     */
1263 /*                                                                          */
1264 /*   Select queue depths for the devices on the contoller                   */
1265 /*                                                                          */
1266 /****************************************************************************/
1267 static void
1268 ips_select_queue_depth(struct Scsi_Host *host, Scsi_Device * scsi_devs)
1269 {
1270         Scsi_Device *device;
1271         ips_ha_t *ha;
1272         int count = 0;
1273         int min;
1274
1275         ha = IPS_HA(host);
1276         min = ha->max_cmds / 4;
1277
1278         for (device = scsi_devs; device; device = device->next) {
1279                 if (device->host == host) {
1280                         if ((device->channel == 0) && (device->type == 0))
1281                                 count++;
1282                 }
1283         }
1284
1285         for (device = scsi_devs; device; device = device->next) {
1286                 if (device->host == host) {
1287                         if ((device->channel == 0) && (device->type == 0)) {
1288                                 device->queue_depth =
1289                                     (ha->max_cmds - 1) / count;
1290                                 if (device->queue_depth < min)
1291                                         device->queue_depth = min;
1292                         } else {
1293                                 device->queue_depth = 2;
1294                         }
1295
1296                         if (device->queue_depth < 2)
1297                                 device->queue_depth = 2;
1298                 }
1299         }
1300 }
1301
1302 #else
1303 /****************************************************************************/
1304 /*                                                                          */
1305 /* Routine Name: ips_slave_configure                                        */
1306 /*                                                                          */
1307 /* Routine Description:                                                     */
1308 /*                                                                          */
1309 /*   Set queue depths on devices once scan is complete                      */
1310 /*                                                                          */
1311 /****************************************************************************/
1312 static int
1313 ips_slave_configure(Scsi_Device * SDptr)
1314 {
1315         ips_ha_t *ha;
1316         int min;
1317
1318         ha = IPS_HA(SDptr->host);
1319         if (SDptr->tagged_supported && SDptr->type == TYPE_DISK) {
1320                 min = ha->max_cmds / 2;
1321                 if (ha->enq->ucLogDriveCount <= 2)
1322                         min = ha->max_cmds - 1;
1323                 scsi_adjust_queue_depth(SDptr, MSG_ORDERED_TAG, min);
1324         }
1325         return 0;
1326 }
1327 #endif
1328
1329 /****************************************************************************/
1330 /*                                                                          */
1331 /* Routine Name: do_ipsintr                                                 */
1332 /*                                                                          */
1333 /* Routine Description:                                                     */
1334 /*                                                                          */
1335 /*   Wrapper for the interrupt handler                                      */
1336 /*                                                                          */
1337 /****************************************************************************/
1338 static irqreturn_t
1339 do_ipsintr(int irq, void *dev_id, struct pt_regs * regs)
1340 {
1341         ips_ha_t *ha;
1342         unsigned long cpu_flags;
1343         struct Scsi_Host *host;
1344         int irqstatus;
1345
1346         METHOD_TRACE("do_ipsintr", 2);
1347
1348         ha = (ips_ha_t *) dev_id;
1349         if (!ha)
1350                 return IRQ_NONE;
1351         host = ips_sh[ha->host_num];
1352         /* interrupt during initialization */
1353         if (!host) {
1354                 (*ha->func.intr) (ha);
1355                 return IRQ_HANDLED;
1356         }
1357
1358         IPS_LOCK_SAVE(host->host_lock, cpu_flags);
1359
1360         if (!ha->active) {
1361                 IPS_UNLOCK_RESTORE(host->host_lock, cpu_flags);
1362                 return IRQ_HANDLED;
1363         }
1364
1365         irqstatus = (*ha->func.intr) (ha);
1366
1367         IPS_UNLOCK_RESTORE(host->host_lock, cpu_flags);
1368
1369         /* start the next command */
1370         ips_next(ha, IPS_INTR_ON);
1371         return IRQ_RETVAL(irqstatus);
1372 }
1373
1374 /****************************************************************************/
1375 /*                                                                          */
1376 /* Routine Name: ips_intr_copperhead                                        */
1377 /*                                                                          */
1378 /* Routine Description:                                                     */
1379 /*                                                                          */
1380 /*   Polling interrupt handler                                              */
1381 /*                                                                          */
1382 /*   ASSUMES interrupts are disabled                                        */
1383 /*                                                                          */
1384 /****************************************************************************/
1385 int
1386 ips_intr_copperhead(ips_ha_t * ha)
1387 {
1388         ips_stat_t *sp;
1389         ips_scb_t *scb;
1390         IPS_STATUS cstatus;
1391         int intrstatus;
1392
1393         METHOD_TRACE("ips_intr", 2);
1394
1395         if (!ha)
1396                 return 0;
1397
1398         if (!ha->active)
1399                 return 0;
1400
1401         intrstatus = (*ha->func.isintr) (ha);
1402
1403         if (!intrstatus) {
1404                 /*
1405                  * Unexpected/Shared interrupt
1406                  */
1407
1408                 return 0;
1409         }
1410
1411         while (TRUE) {
1412                 sp = &ha->sp;
1413
1414                 intrstatus = (*ha->func.isintr) (ha);
1415
1416                 if (!intrstatus)
1417                         break;
1418                 else
1419                         cstatus.value = (*ha->func.statupd) (ha);
1420
1421                 if (cstatus.fields.command_id > (IPS_MAX_CMDS - 1)) {
1422                         /* Spurious Interupt ? */
1423                         continue;
1424                 }
1425
1426                 ips_chkstatus(ha, &cstatus);
1427                 scb = (ips_scb_t *) sp->scb_addr;
1428
1429                 /*
1430                  * use the callback function to finish things up
1431                  * NOTE: interrupts are OFF for this
1432                  */
1433                 (*scb->callback) (ha, scb);
1434         }                       /* end while */
1435         return 1;
1436 }
1437
1438 /****************************************************************************/
1439 /*                                                                          */
1440 /* Routine Name: ips_intr_morpheus                                          */
1441 /*                                                                          */
1442 /* Routine Description:                                                     */
1443 /*                                                                          */
1444 /*   Polling interrupt handler                                              */
1445 /*                                                                          */
1446 /*   ASSUMES interrupts are disabled                                        */
1447 /*                                                                          */
1448 /****************************************************************************/
1449 int
1450 ips_intr_morpheus(ips_ha_t * ha)
1451 {
1452         ips_stat_t *sp;
1453         ips_scb_t *scb;
1454         IPS_STATUS cstatus;
1455         int intrstatus;
1456
1457         METHOD_TRACE("ips_intr_morpheus", 2);
1458
1459         if (!ha)
1460                 return 0;
1461
1462         if (!ha->active)
1463                 return 0;
1464
1465         intrstatus = (*ha->func.isintr) (ha);
1466
1467         if (!intrstatus) {
1468                 /*
1469                  * Unexpected/Shared interrupt
1470                  */
1471
1472                 return 0;
1473         }
1474
1475         while (TRUE) {
1476                 sp = &ha->sp;
1477
1478                 intrstatus = (*ha->func.isintr) (ha);
1479
1480                 if (!intrstatus)
1481                         break;
1482                 else
1483                         cstatus.value = (*ha->func.statupd) (ha);
1484
1485                 if (cstatus.value == 0xffffffff)
1486                         /* No more to process */
1487                         break;
1488
1489                 if (cstatus.fields.command_id > (IPS_MAX_CMDS - 1)) {
1490                         IPS_PRINTK(KERN_WARNING, ha->pcidev,
1491                                    "Spurious interrupt; no ccb.\n");
1492
1493                         continue;
1494                 }
1495
1496                 ips_chkstatus(ha, &cstatus);
1497                 scb = (ips_scb_t *) sp->scb_addr;
1498
1499                 /*
1500                  * use the callback function to finish things up
1501                  * NOTE: interrupts are OFF for this
1502                  */
1503                 (*scb->callback) (ha, scb);
1504         }                       /* end while */
1505         return 1;
1506 }
1507
1508 /****************************************************************************/
1509 /*                                                                          */
1510 /* Routine Name: ips_info                                                   */
1511 /*                                                                          */
1512 /* Routine Description:                                                     */
1513 /*                                                                          */
1514 /*   Return info about the driver                                           */
1515 /*                                                                          */
1516 /****************************************************************************/
1517 static const char *
1518 ips_info(struct Scsi_Host *SH)
1519 {
1520         static char buffer[256];
1521         char *bp;
1522         ips_ha_t *ha;
1523
1524         METHOD_TRACE("ips_info", 1);
1525
1526         ha = IPS_HA(SH);
1527
1528         if (!ha)
1529                 return (NULL);
1530
1531         bp = &buffer[0];
1532         memset(bp, 0, sizeof (buffer));
1533
1534         sprintf(bp, "%s%s%s Build %d", "IBM PCI ServeRAID ",
1535                 IPS_VERSION_HIGH, IPS_VERSION_LOW, IPS_BUILD_IDENT);
1536
1537         if (ha->ad_type > 0 && ha->ad_type <= MAX_ADAPTER_NAME) {
1538                 strcat(bp, " <");
1539                 strcat(bp, ips_adapter_name[ha->ad_type - 1]);
1540                 strcat(bp, ">");
1541         }
1542
1543         return (bp);
1544 }
1545
1546 /****************************************************************************/
1547 /*                                                                          */
1548 /* Routine Name: ips_proc_info                                              */
1549 /*                                                                          */
1550 /* Routine Description:                                                     */
1551 /*                                                                          */
1552 /*   The passthru interface for the driver                                  */
1553 /*                                                                          */
1554 /****************************************************************************/
1555 static int
1556 ips_proc_info(struct Scsi_Host *host, char *buffer, char **start, off_t offset,
1557               int length, int func)
1558 {
1559         int i;
1560         int ret;
1561         ips_ha_t *ha = NULL;
1562
1563         METHOD_TRACE("ips_proc_info", 1);
1564
1565         /* Find our host structure */
1566         for (i = 0; i < ips_next_controller; i++) {
1567                 if (ips_sh[i]) {
1568                         if (ips_sh[i] == host) {
1569                                 ha = (ips_ha_t *) ips_sh[i]->hostdata;
1570                                 break;
1571                         }
1572                 }
1573         }
1574
1575         if (!ha)
1576                 return (-EINVAL);
1577
1578         if (func) {
1579                 /* write */
1580                 return (0);
1581         } else {
1582                 /* read */
1583                 if (start)
1584                         *start = buffer;
1585
1586                 ret = ips_host_info(ha, buffer, offset, length);
1587
1588                 return (ret);
1589         }
1590 }
1591
1592 /*--------------------------------------------------------------------------*/
1593 /* Helper Functions                                                         */
1594 /*--------------------------------------------------------------------------*/
1595
1596 /****************************************************************************/
1597 /*                                                                          */
1598 /* Routine Name: ips_is_passthru                                            */
1599 /*                                                                          */
1600 /* Routine Description:                                                     */
1601 /*                                                                          */
1602 /*   Determine if the specified SCSI command is really a passthru command   */
1603 /*                                                                          */
1604 /****************************************************************************/
1605 static int
1606 ips_is_passthru(Scsi_Cmnd * SC)
1607 {
1608         unsigned long flags;
1609
1610         METHOD_TRACE("ips_is_passthru", 1);
1611
1612         if (!SC)
1613                 return (0);
1614
1615         if ((SC->cmnd[0] == IPS_IOCTL_COMMAND) &&
1616             (SC->device->channel == 0) &&
1617             (SC->device->id == IPS_ADAPTER_ID) &&
1618             (SC->device->lun == 0) && SC->request_buffer) {
1619                 if ((!SC->use_sg) && SC->request_bufflen &&
1620                     (((char *) SC->request_buffer)[0] == 'C') &&
1621                     (((char *) SC->request_buffer)[1] == 'O') &&
1622                     (((char *) SC->request_buffer)[2] == 'P') &&
1623                     (((char *) SC->request_buffer)[3] == 'P'))
1624                         return 1;
1625                 else if (SC->use_sg) {
1626                         struct scatterlist *sg = SC->request_buffer;
1627                         char  *buffer;
1628
1629                         /* kmap_atomic() ensures addressability of the user buffer.*/
1630                         /* local_irq_save() protects the KM_IRQ0 address slot.     */
1631                         local_irq_save(flags);
1632                         buffer = kmap_atomic(sg->page, KM_IRQ0) + sg->offset;
1633                         if (buffer && buffer[0] == 'C' && buffer[1] == 'O' &&
1634                             buffer[2] == 'P' && buffer[3] == 'P') {
1635                                 kunmap_atomic(buffer - sg->offset, KM_IRQ0);
1636                                 local_irq_restore(flags);
1637                                 return 1;
1638                         }
1639                         kunmap_atomic(buffer - sg->offset, KM_IRQ0);
1640                         local_irq_restore(flags);
1641                 }
1642         }
1643         return 0;
1644 }
1645
1646 /****************************************************************************/
1647 /*                                                                          */
1648 /* Routine Name: ips_alloc_passthru_buffer                                  */
1649 /*                                                                          */
1650 /* Routine Description:                                                     */
1651 /*   allocate a buffer large enough for the ioctl data if the ioctl buffer  */
1652 /*   is too small or doesn't exist                                          */
1653 /****************************************************************************/
1654 static int
1655 ips_alloc_passthru_buffer(ips_ha_t * ha, int length)
1656 {
1657         void *bigger_buf;
1658         dma_addr_t dma_busaddr;
1659
1660         if (ha->ioctl_data && length <= ha->ioctl_len)
1661                 return 0;
1662         /* there is no buffer or it's not big enough, allocate a new one */
1663         bigger_buf = pci_alloc_consistent(ha->pcidev, length, &dma_busaddr);
1664         if (bigger_buf) {
1665                 /* free the old memory */
1666                 pci_free_consistent(ha->pcidev, ha->ioctl_len, ha->ioctl_data,
1667                                     ha->ioctl_busaddr);
1668                 /* use the new memory */
1669                 ha->ioctl_data = (char *) bigger_buf;
1670                 ha->ioctl_len = length;
1671                 ha->ioctl_busaddr = dma_busaddr;
1672         } else {
1673                 return -1;
1674         }
1675         return 0;
1676 }
1677
1678 /****************************************************************************/
1679 /*                                                                          */
1680 /* Routine Name: ips_make_passthru                                          */
1681 /*                                                                          */
1682 /* Routine Description:                                                     */
1683 /*                                                                          */
1684 /*   Make a passthru command out of the info in the Scsi block              */
1685 /*                                                                          */
1686 /****************************************************************************/
1687 static int
1688 ips_make_passthru(ips_ha_t * ha, Scsi_Cmnd * SC, ips_scb_t * scb, int intr)
1689 {
1690         ips_passthru_t *pt;
1691         int length = 0;
1692         int ret;
1693
1694         METHOD_TRACE("ips_make_passthru", 1);
1695
1696         if (!SC->use_sg) {
1697                 length = SC->request_bufflen;
1698         } else {
1699                 struct scatterlist *sg = SC->request_buffer;
1700                 int i;
1701                 for (i = 0; i < SC->use_sg; i++)
1702                         length += sg[i].length;
1703         }
1704         if (length < sizeof (ips_passthru_t)) {
1705                 /* wrong size */
1706                 DEBUG_VAR(1, "(%s%d) Passthru structure wrong size",
1707                           ips_name, ha->host_num);
1708                 return (IPS_FAILURE);
1709         }
1710         if (ips_alloc_passthru_buffer(ha, length)) {
1711                 /* allocation failure!  If ha->ioctl_data exists, use it to return
1712                    some error codes.  Return a failed command to the scsi layer. */
1713                 if (ha->ioctl_data) {
1714                         pt = (ips_passthru_t *) ha->ioctl_data;
1715                         ips_scmd_buf_read(SC, pt, sizeof (ips_passthru_t));
1716                         pt->BasicStatus = 0x0B;
1717                         pt->ExtendedStatus = 0x00;
1718                         ips_scmd_buf_write(SC, pt, sizeof (ips_passthru_t));
1719                 }
1720                 return IPS_FAILURE;
1721         }
1722         ha->ioctl_datasize = length;
1723
1724         ips_scmd_buf_read(SC, ha->ioctl_data, ha->ioctl_datasize);
1725         pt = (ips_passthru_t *) ha->ioctl_data;
1726
1727         /*
1728          * Some notes about the passthru interface used
1729          *
1730          * IF the scsi op_code == 0x0d then we assume
1731          * that the data came along with/goes with the
1732          * packet we received from the sg driver. In this
1733          * case the CmdBSize field of the pt structure is
1734          * used for the size of the buffer.
1735          */
1736
1737         switch (pt->CoppCmd) {
1738         case IPS_NUMCTRLS:
1739                 memcpy(ha->ioctl_data + sizeof (ips_passthru_t),
1740                        &ips_num_controllers, sizeof (int));
1741                 ips_scmd_buf_write(SC, ha->ioctl_data,
1742                                    sizeof (ips_passthru_t) + sizeof (int));
1743                 SC->result = DID_OK << 16;
1744
1745                 return (IPS_SUCCESS_IMM);
1746
1747         case IPS_COPPUSRCMD:
1748         case IPS_COPPIOCCMD:
1749                 if (SC->cmnd[0] == IPS_IOCTL_COMMAND) {
1750                         if (length < (sizeof (ips_passthru_t) + pt->CmdBSize)) {
1751                                 /* wrong size */
1752                                 DEBUG_VAR(1,
1753                                           "(%s%d) Passthru structure wrong size",
1754                                           ips_name, ha->host_num);
1755
1756                                 return (IPS_FAILURE);
1757                         }
1758
1759                         if (ha->device_id == IPS_DEVICEID_COPPERHEAD &&
1760                             pt->CoppCP.cmd.flashfw.op_code ==
1761                             IPS_CMD_RW_BIOSFW) {
1762                                 ret = ips_flash_copperhead(ha, pt, scb);
1763                                 ips_scmd_buf_write(SC, ha->ioctl_data,
1764                                                    sizeof (ips_passthru_t));
1765                                 return ret;
1766                         }
1767                         if (ips_usrcmd(ha, pt, scb))
1768                                 return (IPS_SUCCESS);
1769                         else
1770                                 return (IPS_FAILURE);
1771                 }
1772
1773                 break;
1774
1775         }                       /* end switch */
1776
1777         return (IPS_FAILURE);
1778 }
1779
1780 /****************************************************************************/
1781 /* Routine Name: ips_flash_copperhead                                       */
1782 /* Routine Description:                                                     */
1783 /*   Flash the BIOS/FW on a Copperhead style controller                     */
1784 /****************************************************************************/
1785 static int
1786 ips_flash_copperhead(ips_ha_t * ha, ips_passthru_t * pt, ips_scb_t * scb)
1787 {
1788         int datasize;
1789
1790         /* Trombone is the only copperhead that can do packet flash, but only
1791          * for firmware. No one said it had to make sence. */
1792         if (IPS_IS_TROMBONE(ha) && pt->CoppCP.cmd.flashfw.type == IPS_FW_IMAGE) {
1793                 if (ips_usrcmd(ha, pt, scb))
1794                         return IPS_SUCCESS;
1795                 else
1796                         return IPS_FAILURE;
1797         }
1798         pt->BasicStatus = 0x0B;
1799         pt->ExtendedStatus = 0;
1800         scb->scsi_cmd->result = DID_OK << 16;
1801         /* IF it's OK to Use the "CD BOOT" Flash Buffer, then you can     */
1802         /* avoid allocating a huge buffer per adapter ( which can fail ). */
1803         if (pt->CoppCP.cmd.flashfw.type == IPS_BIOS_IMAGE &&
1804             pt->CoppCP.cmd.flashfw.direction == IPS_ERASE_BIOS) {
1805                 pt->BasicStatus = 0;
1806                 return ips_flash_bios(ha, pt, scb);
1807         } else if (pt->CoppCP.cmd.flashfw.packet_num == 0) {
1808                 if (ips_FlashData && !test_and_set_bit(0, &ips_FlashDataInUse)){
1809                         ha->flash_data = ips_FlashData;
1810                         ha->flash_busaddr = ips_flashbusaddr;
1811                         ha->flash_len = PAGE_SIZE << 7;
1812                         ha->flash_datasize = 0;
1813                 } else if (!ha->flash_data) {
1814                         datasize = pt->CoppCP.cmd.flashfw.total_packets *
1815                             pt->CoppCP.cmd.flashfw.count;
1816                         ha->flash_data = pci_alloc_consistent(ha->pcidev,
1817                                                               datasize,
1818                                                               &ha->flash_busaddr);
1819                         if (!ha->flash_data){
1820                                 printk(KERN_WARNING "Unable to allocate a flash buffer\n");
1821                                 return IPS_FAILURE;
1822                         }
1823                         ha->flash_datasize = 0;
1824                         ha->flash_len = datasize;
1825                 } else
1826                         return IPS_FAILURE;
1827         } else {
1828                 if (pt->CoppCP.cmd.flashfw.count + ha->flash_datasize >
1829                     ha->flash_len) {
1830                         ips_free_flash_copperhead(ha);
1831                         IPS_PRINTK(KERN_WARNING, ha->pcidev,
1832                                    "failed size sanity check\n");
1833                         return IPS_FAILURE;
1834                 }
1835         }
1836         if (!ha->flash_data)
1837                 return IPS_FAILURE;
1838         pt->BasicStatus = 0;
1839         memcpy(&ha->flash_data[ha->flash_datasize], pt + 1,
1840                pt->CoppCP.cmd.flashfw.count);
1841         ha->flash_datasize += pt->CoppCP.cmd.flashfw.count;
1842         if (pt->CoppCP.cmd.flashfw.packet_num ==
1843             pt->CoppCP.cmd.flashfw.total_packets - 1) {
1844                 if (pt->CoppCP.cmd.flashfw.type == IPS_BIOS_IMAGE)
1845                         return ips_flash_bios(ha, pt, scb);
1846                 else if (pt->CoppCP.cmd.flashfw.type == IPS_FW_IMAGE)
1847                         return ips_flash_firmware(ha, pt, scb);
1848         }
1849         return IPS_SUCCESS_IMM;
1850 }
1851
1852 /****************************************************************************/
1853 /* Routine Name: ips_flash_bios                                             */
1854 /* Routine Description:                                                     */
1855 /*   flashes the bios of a copperhead adapter                               */
1856 /****************************************************************************/
1857 static int
1858 ips_flash_bios(ips_ha_t * ha, ips_passthru_t * pt, ips_scb_t * scb)
1859 {
1860
1861         if (pt->CoppCP.cmd.flashfw.type == IPS_BIOS_IMAGE &&
1862             pt->CoppCP.cmd.flashfw.direction == IPS_WRITE_BIOS) {
1863                 if ((!ha->func.programbios) || (!ha->func.erasebios) ||
1864                     (!ha->func.verifybios))
1865                         goto error;
1866                 if ((*ha->func.erasebios) (ha)) {
1867                         DEBUG_VAR(1,
1868                                   "(%s%d) flash bios failed - unable to erase flash",
1869                                   ips_name, ha->host_num);
1870                         goto error;
1871                 } else
1872                     if ((*ha->func.programbios) (ha,
1873                                                  ha->flash_data +
1874                                                  IPS_BIOS_HEADER,
1875                                                  ha->flash_datasize -
1876                                                  IPS_BIOS_HEADER, 0)) {
1877                         DEBUG_VAR(1,
1878                                   "(%s%d) flash bios failed - unable to flash",
1879                                   ips_name, ha->host_num);
1880                         goto error;
1881                 } else
1882                     if ((*ha->func.verifybios) (ha,
1883                                                 ha->flash_data +
1884                                                 IPS_BIOS_HEADER,
1885                                                 ha->flash_datasize -
1886                                                 IPS_BIOS_HEADER, 0)) {
1887                         DEBUG_VAR(1,
1888                                   "(%s%d) flash bios failed - unable to verify flash",
1889                                   ips_name, ha->host_num);
1890                         goto error;
1891                 }
1892                 ips_free_flash_copperhead(ha);
1893                 return IPS_SUCCESS_IMM;
1894         } else if (pt->CoppCP.cmd.flashfw.type == IPS_BIOS_IMAGE &&
1895                    pt->CoppCP.cmd.flashfw.direction == IPS_ERASE_BIOS) {
1896                 if (!ha->func.erasebios)
1897                         goto error;
1898                 if ((*ha->func.erasebios) (ha)) {
1899                         DEBUG_VAR(1,
1900                                   "(%s%d) flash bios failed - unable to erase flash",
1901                                   ips_name, ha->host_num);
1902                         goto error;
1903                 }
1904                 return IPS_SUCCESS_IMM;
1905         }
1906       error:
1907         pt->BasicStatus = 0x0B;
1908         pt->ExtendedStatus = 0x00;
1909         ips_free_flash_copperhead(ha);
1910         return IPS_FAILURE;
1911 }
1912
1913 /****************************************************************************/
1914 /*                                                                          */
1915 /* Routine Name: ips_fill_scb_sg_single                                     */
1916 /*                                                                          */
1917 /* Routine Description:                                                     */
1918 /*   Fill in a single scb sg_list element from an address                   */
1919 /*   return a -1 if a breakup occurred                                      */
1920 /****************************************************************************/
1921 static int
1922 ips_fill_scb_sg_single(ips_ha_t * ha, dma_addr_t busaddr,
1923                        ips_scb_t * scb, int indx, unsigned int e_len)
1924 {
1925
1926         int ret_val = 0;
1927
1928         if ((scb->data_len + e_len) > ha->max_xfer) {
1929                 e_len = ha->max_xfer - scb->data_len;
1930                 scb->breakup = indx;
1931                 ++scb->sg_break;
1932                 ret_val = -1;
1933         } else {
1934                 scb->breakup = 0;
1935                 scb->sg_break = 0;
1936         }
1937         if (IPS_USE_ENH_SGLIST(ha)) {
1938                 scb->sg_list.enh_list[indx].address_lo =
1939                     cpu_to_le32(pci_dma_lo32(busaddr));
1940                 scb->sg_list.enh_list[indx].address_hi =
1941                     cpu_to_le32(pci_dma_hi32(busaddr));
1942                 scb->sg_list.enh_list[indx].length = cpu_to_le32(e_len);
1943         } else {
1944                 scb->sg_list.std_list[indx].address =
1945                     cpu_to_le32(pci_dma_lo32(busaddr));
1946                 scb->sg_list.std_list[indx].length = cpu_to_le32(e_len);
1947         }
1948
1949         ++scb->sg_len;
1950         scb->data_len += e_len;
1951         return ret_val;
1952 }
1953
1954 /****************************************************************************/
1955 /* Routine Name: ips_flash_firmware                                         */
1956 /* Routine Description:                                                     */
1957 /*   flashes the firmware of a copperhead adapter                           */
1958 /****************************************************************************/
1959 static int
1960 ips_flash_firmware(ips_ha_t * ha, ips_passthru_t * pt, ips_scb_t * scb)
1961 {
1962         IPS_SG_LIST sg_list;
1963         uint32_t cmd_busaddr;
1964
1965         if (pt->CoppCP.cmd.flashfw.type == IPS_FW_IMAGE &&
1966             pt->CoppCP.cmd.flashfw.direction == IPS_WRITE_FW) {
1967                 memset(&pt->CoppCP.cmd, 0, sizeof (IPS_HOST_COMMAND));
1968                 pt->CoppCP.cmd.flashfw.op_code = IPS_CMD_DOWNLOAD;
1969                 pt->CoppCP.cmd.flashfw.count = cpu_to_le32(ha->flash_datasize);
1970         } else {
1971                 pt->BasicStatus = 0x0B;
1972                 pt->ExtendedStatus = 0x00;
1973                 ips_free_flash_copperhead(ha);
1974                 return IPS_FAILURE;
1975         }
1976         /* Save the S/G list pointer so it doesn't get clobbered */
1977         sg_list.list = scb->sg_list.list;
1978         cmd_busaddr = scb->scb_busaddr;
1979         /* copy in the CP */
1980         memcpy(&scb->cmd, &pt->CoppCP.cmd, sizeof (IPS_IOCTL_CMD));
1981         /* FIX stuff that might be wrong */
1982         scb->sg_list.list = sg_list.list;
1983         scb->scb_busaddr = cmd_busaddr;
1984         scb->bus = scb->scsi_cmd->device->channel;
1985         scb->target_id = scb->scsi_cmd->device->id;
1986         scb->lun = scb->scsi_cmd->device->lun;
1987         scb->sg_len = 0;
1988         scb->data_len = 0;
1989         scb->flags = 0;
1990         scb->op_code = 0;
1991         scb->callback = ipsintr_done;
1992         scb->timeout = ips_cmd_timeout;
1993
1994         scb->data_len = ha->flash_datasize;
1995         scb->data_busaddr =
1996             pci_map_single(ha->pcidev, ha->flash_data, scb->data_len,
1997                            IPS_DMA_DIR(scb));
1998         scb->flags |= IPS_SCB_MAP_SINGLE;
1999         scb->cmd.flashfw.command_id = IPS_COMMAND_ID(ha, scb);
2000         scb->cmd.flashfw.buffer_addr = cpu_to_le32(scb->data_busaddr);
2001         if (pt->TimeOut)
2002                 scb->timeout = pt->TimeOut;
2003         scb->scsi_cmd->result = DID_OK << 16;
2004         return IPS_SUCCESS;
2005 }
2006
2007 /****************************************************************************/
2008 /* Routine Name: ips_free_flash_copperhead                                  */
2009 /* Routine Description:                                                     */
2010 /*   release the memory resources used to hold the flash image              */
2011 /****************************************************************************/
2012 static void
2013 ips_free_flash_copperhead(ips_ha_t * ha)
2014 {
2015         if (ha->flash_data == ips_FlashData)
2016                 test_and_clear_bit(0, &ips_FlashDataInUse);
2017         else if (ha->flash_data)
2018                 pci_free_consistent(ha->pcidev, ha->flash_len, ha->flash_data,
2019                                     ha->flash_busaddr);
2020         ha->flash_data = NULL;
2021 }
2022
2023 /****************************************************************************/
2024 /*                                                                          */
2025 /* Routine Name: ips_usrcmd                                                 */
2026 /*                                                                          */
2027 /* Routine Description:                                                     */
2028 /*                                                                          */
2029 /*   Process a user command and make it ready to send                       */
2030 /*                                                                          */
2031 /****************************************************************************/
2032 static int
2033 ips_usrcmd(ips_ha_t * ha, ips_passthru_t * pt, ips_scb_t * scb)
2034 {
2035         IPS_SG_LIST sg_list;
2036         uint32_t cmd_busaddr;
2037
2038         METHOD_TRACE("ips_usrcmd", 1);
2039
2040         if ((!scb) || (!pt) || (!ha))
2041                 return (0);
2042
2043         /* Save the S/G list pointer so it doesn't get clobbered */
2044         sg_list.list = scb->sg_list.list;
2045         cmd_busaddr = scb->scb_busaddr;
2046         /* copy in the CP */
2047         memcpy(&scb->cmd, &pt->CoppCP.cmd, sizeof (IPS_IOCTL_CMD));
2048         memcpy(&scb->dcdb, &pt->CoppCP.dcdb, sizeof (IPS_DCDB_TABLE));
2049
2050         /* FIX stuff that might be wrong */
2051         scb->sg_list.list = sg_list.list;
2052         scb->scb_busaddr = cmd_busaddr;
2053         scb->bus = scb->scsi_cmd->device->channel;
2054         scb->target_id = scb->scsi_cmd->device->id;
2055         scb->lun = scb->scsi_cmd->device->lun;
2056         scb->sg_len = 0;
2057         scb->data_len = 0;
2058         scb->flags = 0;
2059         scb->op_code = 0;
2060         scb->callback = ipsintr_done;
2061         scb->timeout = ips_cmd_timeout;
2062         scb->cmd.basic_io.command_id = IPS_COMMAND_ID(ha, scb);
2063
2064         /* we don't support DCDB/READ/WRITE Scatter Gather */
2065         if ((scb->cmd.basic_io.op_code == IPS_CMD_READ_SG) ||
2066             (scb->cmd.basic_io.op_code == IPS_CMD_WRITE_SG) ||
2067             (scb->cmd.basic_io.op_code == IPS_CMD_DCDB_SG))
2068                 return (0);
2069
2070         if (pt->CmdBSize) {
2071                 scb->data_len = pt->CmdBSize;
2072                 scb->data_busaddr = ha->ioctl_busaddr + sizeof (ips_passthru_t);
2073         } else {
2074                 scb->data_busaddr = 0L;
2075         }
2076
2077         if (scb->cmd.dcdb.op_code == IPS_CMD_DCDB)
2078                 scb->cmd.dcdb.dcdb_address = cpu_to_le32(scb->scb_busaddr +
2079                                                          (unsigned long) &scb->
2080                                                          dcdb -
2081                                                          (unsigned long) scb);
2082
2083         if (pt->CmdBSize) {
2084                 if (scb->cmd.dcdb.op_code == IPS_CMD_DCDB)
2085                         scb->dcdb.buffer_pointer =
2086                             cpu_to_le32(scb->data_busaddr);
2087                 else
2088                         scb->cmd.basic_io.sg_addr =
2089                             cpu_to_le32(scb->data_busaddr);
2090         }
2091
2092         /* set timeouts */
2093         if (pt->TimeOut) {
2094                 scb->timeout = pt->TimeOut;
2095
2096                 if (pt->TimeOut <= 10)
2097                         scb->dcdb.cmd_attribute |= IPS_TIMEOUT10;
2098                 else if (pt->TimeOut <= 60)
2099                         scb->dcdb.cmd_attribute |= IPS_TIMEOUT60;
2100                 else
2101                         scb->dcdb.cmd_attribute |= IPS_TIMEOUT20M;
2102         }
2103
2104         /* assume success */
2105         scb->scsi_cmd->result = DID_OK << 16;
2106
2107         /* success */
2108         return (1);
2109 }
2110
2111 /****************************************************************************/
2112 /*                                                                          */
2113 /* Routine Name: ips_cleanup_passthru                                       */
2114 /*                                                                          */
2115 /* Routine Description:                                                     */
2116 /*                                                                          */
2117 /*   Cleanup after a passthru command                                       */
2118 /*                                                                          */
2119 /****************************************************************************/
2120 static void
2121 ips_cleanup_passthru(ips_ha_t * ha, ips_scb_t * scb)
2122 {
2123         ips_passthru_t *pt;
2124
2125         METHOD_TRACE("ips_cleanup_passthru", 1);
2126
2127         if ((!scb) || (!scb->scsi_cmd) || (!scb->scsi_cmd->request_buffer)) {
2128                 DEBUG_VAR(1, "(%s%d) couldn't cleanup after passthru",
2129                           ips_name, ha->host_num);
2130
2131                 return;
2132         }
2133         pt = (ips_passthru_t *) ha->ioctl_data;
2134
2135         /* Copy data back to the user */
2136         if (scb->cmd.dcdb.op_code == IPS_CMD_DCDB)      /* Copy DCDB Back to Caller's Area */
2137                 memcpy(&pt->CoppCP.dcdb, &scb->dcdb, sizeof (IPS_DCDB_TABLE));
2138
2139         pt->BasicStatus = scb->basic_status;
2140         pt->ExtendedStatus = scb->extended_status;
2141         pt->AdapterType = ha->ad_type;
2142
2143         if (ha->device_id == IPS_DEVICEID_COPPERHEAD &&
2144             (scb->cmd.flashfw.op_code == IPS_CMD_DOWNLOAD ||
2145              scb->cmd.flashfw.op_code == IPS_CMD_RW_BIOSFW))
2146                 ips_free_flash_copperhead(ha);
2147
2148         ips_scmd_buf_write(scb->scsi_cmd, ha->ioctl_data, ha->ioctl_datasize);
2149 }
2150
2151 /****************************************************************************/
2152 /*                                                                          */
2153 /* Routine Name: ips_host_info                                              */
2154 /*                                                                          */
2155 /* Routine Description:                                                     */
2156 /*                                                                          */
2157 /*   The passthru interface for the driver                                  */
2158 /*                                                                          */
2159 /****************************************************************************/
2160 static int
2161 ips_host_info(ips_ha_t * ha, char *ptr, off_t offset, int len)
2162 {
2163         IPS_INFOSTR info;
2164
2165         METHOD_TRACE("ips_host_info", 1);
2166
2167         info.buffer = ptr;
2168         info.length = len;
2169         info.offset = offset;
2170         info.pos = 0;
2171         info.localpos = 0;
2172
2173         copy_info(&info, "\nIBM ServeRAID General Information:\n\n");
2174
2175         if ((le32_to_cpu(ha->nvram->signature) == IPS_NVRAM_P5_SIG) &&
2176             (le16_to_cpu(ha->nvram->adapter_type) != 0))
2177                 copy_info(&info, "\tController Type                   : %s\n",
2178                           ips_adapter_name[ha->ad_type - 1]);
2179         else
2180                 copy_info(&info,
2181                           "\tController Type                   : Unknown\n");
2182
2183         if (ha->io_addr)
2184                 copy_info(&info,
2185                           "\tIO region                         : 0x%lx (%d bytes)\n",
2186                           ha->io_addr, ha->io_len);
2187
2188         if (ha->mem_addr) {
2189                 copy_info(&info,
2190                           "\tMemory region                     : 0x%lx (%d bytes)\n",
2191                           ha->mem_addr, ha->mem_len);
2192                 copy_info(&info,
2193                           "\tShared memory address             : 0x%lx\n",
2194                           ha->mem_ptr);
2195         }
2196
2197         copy_info(&info, "\tIRQ number                        : %d\n", ha->irq);
2198
2199     /* For the Next 3 lines Check for Binary 0 at the end and don't include it if it's there. */
2200     /* That keeps everything happy for "text" operations on the proc file.                    */
2201
2202         if (le32_to_cpu(ha->nvram->signature) == IPS_NVRAM_P5_SIG) {
2203         if (ha->nvram->bios_low[3] == 0) {
2204             copy_info(&info,
2205                                   "\tBIOS Version                      : %c%c%c%c%c%c%c\n",
2206                                   ha->nvram->bios_high[0], ha->nvram->bios_high[1],
2207                                   ha->nvram->bios_high[2], ha->nvram->bios_high[3],
2208                                   ha->nvram->bios_low[0], ha->nvram->bios_low[1],
2209                                   ha->nvram->bios_low[2]);
2210
2211         } else {
2212                     copy_info(&info,
2213                                   "\tBIOS Version                      : %c%c%c%c%c%c%c%c\n",
2214                                   ha->nvram->bios_high[0], ha->nvram->bios_high[1],
2215                                   ha->nvram->bios_high[2], ha->nvram->bios_high[3],
2216                                   ha->nvram->bios_low[0], ha->nvram->bios_low[1],
2217                                   ha->nvram->bios_low[2], ha->nvram->bios_low[3]);
2218         }
2219
2220     }
2221
2222     if (ha->enq->CodeBlkVersion[7] == 0) {
2223         copy_info(&info,
2224                           "\tFirmware Version                  : %c%c%c%c%c%c%c\n",
2225                           ha->enq->CodeBlkVersion[0], ha->enq->CodeBlkVersion[1],
2226                           ha->enq->CodeBlkVersion[2], ha->enq->CodeBlkVersion[3],
2227                           ha->enq->CodeBlkVersion[4], ha->enq->CodeBlkVersion[5],
2228                           ha->enq->CodeBlkVersion[6]);
2229     } else {
2230         copy_info(&info,
2231                           "\tFirmware Version                  : %c%c%c%c%c%c%c%c\n",
2232                           ha->enq->CodeBlkVersion[0], ha->enq->CodeBlkVersion[1],
2233                           ha->enq->CodeBlkVersion[2], ha->enq->CodeBlkVersion[3],
2234                           ha->enq->CodeBlkVersion[4], ha->enq->CodeBlkVersion[5],
2235                           ha->enq->CodeBlkVersion[6], ha->enq->CodeBlkVersion[7]);
2236     }
2237
2238     if (ha->enq->BootBlkVersion[7] == 0) {
2239         copy_info(&info,
2240                           "\tBoot Block Version                : %c%c%c%c%c%c%c\n",
2241                           ha->enq->BootBlkVersion[0], ha->enq->BootBlkVersion[1],
2242                           ha->enq->BootBlkVersion[2], ha->enq->BootBlkVersion[3],
2243                           ha->enq->BootBlkVersion[4], ha->enq->BootBlkVersion[5],
2244                           ha->enq->BootBlkVersion[6]);
2245     } else {
2246         copy_info(&info,
2247                           "\tBoot Block Version                : %c%c%c%c%c%c%c%c\n",
2248                           ha->enq->BootBlkVersion[0], ha->enq->BootBlkVersion[1],
2249                           ha->enq->BootBlkVersion[2], ha->enq->BootBlkVersion[3],
2250                           ha->enq->BootBlkVersion[4], ha->enq->BootBlkVersion[5],
2251                           ha->enq->BootBlkVersion[6], ha->enq->BootBlkVersion[7]);
2252     }
2253
2254         copy_info(&info, "\tDriver Version                    : %s%s\n",
2255                   IPS_VERSION_HIGH, IPS_VERSION_LOW);
2256
2257         copy_info(&info, "\tDriver Build                      : %d\n",
2258                   IPS_BUILD_IDENT);
2259
2260         copy_info(&info, "\tMax Physical Devices              : %d\n",
2261                   ha->enq->ucMaxPhysicalDevices);
2262         copy_info(&info, "\tMax Active Commands               : %d\n",
2263                   ha->max_cmds);
2264         copy_info(&info, "\tCurrent Queued Commands           : %d\n",
2265                   ha->scb_waitlist.count);
2266         copy_info(&info, "\tCurrent Active Commands           : %d\n",
2267                   ha->scb_activelist.count - ha->num_ioctl);
2268         copy_info(&info, "\tCurrent Queued PT Commands        : %d\n",
2269                   ha->copp_waitlist.count);
2270         copy_info(&info, "\tCurrent Active PT Commands        : %d\n",
2271                   ha->num_ioctl);
2272
2273         copy_info(&info, "\n");
2274
2275         return (info.localpos);
2276 }
2277
2278 /****************************************************************************/
2279 /*                                                                          */
2280 /* Routine Name: copy_mem_info                                              */
2281 /*                                                                          */
2282 /* Routine Description:                                                     */
2283 /*                                                                          */
2284 /*   Copy data into an IPS_INFOSTR structure                                */
2285 /*                                                                          */
2286 /****************************************************************************/
2287 static void
2288 copy_mem_info(IPS_INFOSTR * info, char *data, int len)
2289 {
2290         METHOD_TRACE("copy_mem_info", 1);
2291
2292         if (info->pos + len < info->offset) {
2293                 info->pos += len;
2294                 return;
2295         }
2296
2297         if (info->pos < info->offset) {
2298                 data += (info->offset - info->pos);
2299                 len -= (info->offset - info->pos);
2300                 info->pos += (info->offset - info->pos);
2301         }
2302
2303         if (info->localpos + len > info->length)
2304                 len = info->length - info->localpos;
2305
2306         if (len > 0) {
2307                 memcpy(info->buffer + info->localpos, data, len);
2308                 info->pos += len;
2309                 info->localpos += len;
2310         }
2311 }
2312
2313 /****************************************************************************/
2314 /*                                                                          */
2315 /* Routine Name: copy_info                                                  */
2316 /*                                                                          */
2317 /* Routine Description:                                                     */
2318 /*                                                                          */
2319 /*   printf style wrapper for an info structure                             */
2320 /*                                                                          */
2321 /****************************************************************************/
2322 static int
2323 copy_info(IPS_INFOSTR * info, char *fmt, ...)
2324 {
2325         va_list args;
2326         char buf[128];
2327         int len;
2328
2329         METHOD_TRACE("copy_info", 1);
2330
2331         va_start(args, fmt);
2332         len = vsprintf(buf, fmt, args);
2333         va_end(args);
2334
2335         copy_mem_info(info, buf, len);
2336
2337         return (len);
2338 }
2339
2340 /****************************************************************************/
2341 /*                                                                          */
2342 /* Routine Name: ips_identify_controller                                    */
2343 /*                                                                          */
2344 /* Routine Description:                                                     */
2345 /*                                                                          */
2346 /*   Identify this controller                                               */
2347 /*                                                                          */
2348 /****************************************************************************/
2349 static void
2350 ips_identify_controller(ips_ha_t * ha)
2351 {
2352         METHOD_TRACE("ips_identify_controller", 1);
2353
2354         switch (ha->device_id) {
2355         case IPS_DEVICEID_COPPERHEAD:
2356                 if (ha->revision_id <= IPS_REVID_SERVERAID) {
2357                         ha->ad_type = IPS_ADTYPE_SERVERAID;
2358                 } else if (ha->revision_id == IPS_REVID_SERVERAID2) {
2359                         ha->ad_type = IPS_ADTYPE_SERVERAID2;
2360                 } else if (ha->revision_id == IPS_REVID_NAVAJO) {
2361                         ha->ad_type = IPS_ADTYPE_NAVAJO;
2362                 } else if ((ha->revision_id == IPS_REVID_SERVERAID2)
2363                            && (ha->slot_num == 0)) {
2364                         ha->ad_type = IPS_ADTYPE_KIOWA;
2365                 } else if ((ha->revision_id >= IPS_REVID_CLARINETP1) &&
2366                            (ha->revision_id <= IPS_REVID_CLARINETP3)) {
2367                         if (ha->enq->ucMaxPhysicalDevices == 15)
2368                                 ha->ad_type = IPS_ADTYPE_SERVERAID3L;
2369                         else
2370                                 ha->ad_type = IPS_ADTYPE_SERVERAID3;
2371                 } else if ((ha->revision_id >= IPS_REVID_TROMBONE32) &&
2372                            (ha->revision_id <= IPS_REVID_TROMBONE64)) {
2373                         ha->ad_type = IPS_ADTYPE_SERVERAID4H;
2374                 }
2375                 break;
2376
2377         case IPS_DEVICEID_MORPHEUS:
2378                 switch (ha->subdevice_id) {
2379                 case IPS_SUBDEVICEID_4L:
2380                         ha->ad_type = IPS_ADTYPE_SERVERAID4L;
2381                         break;
2382
2383                 case IPS_SUBDEVICEID_4M:
2384                         ha->ad_type = IPS_ADTYPE_SERVERAID4M;
2385                         break;
2386
2387                 case IPS_SUBDEVICEID_4MX:
2388                         ha->ad_type = IPS_ADTYPE_SERVERAID4MX;
2389                         break;
2390
2391                 case IPS_SUBDEVICEID_4LX:
2392                         ha->ad_type = IPS_ADTYPE_SERVERAID4LX;
2393                         break;
2394
2395                 case IPS_SUBDEVICEID_5I2:
2396                         ha->ad_type = IPS_ADTYPE_SERVERAID5I2;
2397                         break;
2398
2399                 case IPS_SUBDEVICEID_5I1:
2400                         ha->ad_type = IPS_ADTYPE_SERVERAID5I1;
2401                         break;
2402                 }
2403
2404                 break;
2405
2406         case IPS_DEVICEID_MARCO:
2407                 switch (ha->subdevice_id) {
2408                 case IPS_SUBDEVICEID_6M:
2409                         ha->ad_type = IPS_ADTYPE_SERVERAID6M;
2410                         break;
2411                 case IPS_SUBDEVICEID_6I:
2412                         ha->ad_type = IPS_ADTYPE_SERVERAID6I;
2413                         break;
2414                 case IPS_SUBDEVICEID_7k:
2415                         ha->ad_type = IPS_ADTYPE_SERVERAID7k;
2416                         break;
2417                 case IPS_SUBDEVICEID_7M:
2418                         ha->ad_type = IPS_ADTYPE_SERVERAID7M;
2419                         break;
2420                 }
2421                 break;
2422         }
2423 }
2424
2425 /****************************************************************************/
2426 /*                                                                          */
2427 /* Routine Name: ips_get_bios_version                                       */
2428 /*                                                                          */
2429 /* Routine Description:                                                     */
2430 /*                                                                          */
2431 /*   Get the BIOS revision number                                           */
2432 /*                                                                          */
2433 /****************************************************************************/
2434 static void
2435 ips_get_bios_version(ips_ha_t * ha, int intr)
2436 {
2437         ips_scb_t *scb;
2438         int ret;
2439         uint8_t major;
2440         uint8_t minor;
2441         uint8_t subminor;
2442         uint8_t *buffer;
2443         char hexDigits[] =
2444             { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C',
2445      'D', 'E', 'F' };
2446
2447         METHOD_TRACE("ips_get_bios_version", 1);
2448
2449         major = 0;
2450         minor = 0;
2451
2452         strncpy(ha->bios_version, "       ?", 8);
2453
2454         if (ha->device_id == IPS_DEVICEID_COPPERHEAD) {
2455                 if (IPS_USE_MEMIO(ha)) {
2456                         /* Memory Mapped I/O */
2457
2458                         /* test 1st byte */
2459                         writel(0, ha->mem_ptr + IPS_REG_FLAP);
2460                         if (ha->revision_id == IPS_REVID_TROMBONE64)
2461                                 udelay(25);     /* 25 us */
2462
2463                         if (readb(ha->mem_ptr + IPS_REG_FLDP) != 0x55)
2464                                 return;
2465
2466                         writel(1, ha->mem_ptr + IPS_REG_FLAP);
2467                         if (ha->revision_id == IPS_REVID_TROMBONE64)
2468                                 udelay(25);     /* 25 us */
2469
2470                         if (readb(ha->mem_ptr + IPS_REG_FLDP) != 0xAA)
2471                                 return;
2472
2473                         /* Get Major version */
2474                         writel(0x1FF, ha->mem_ptr + IPS_REG_FLAP);
2475                         if (ha->revision_id == IPS_REVID_TROMBONE64)
2476                                 udelay(25);     /* 25 us */
2477
2478                         major = readb(ha->mem_ptr + IPS_REG_FLDP);
2479
2480                         /* Get Minor version */
2481                         writel(0x1FE, ha->mem_ptr + IPS_REG_FLAP);
2482                         if (ha->revision_id == IPS_REVID_TROMBONE64)
2483                                 udelay(25);     /* 25 us */
2484                         minor = readb(ha->mem_ptr + IPS_REG_FLDP);
2485
2486                         /* Get SubMinor version */
2487                         writel(0x1FD, ha->mem_ptr + IPS_REG_FLAP);
2488                         if (ha->revision_id == IPS_REVID_TROMBONE64)
2489                                 udelay(25);     /* 25 us */
2490                         subminor = readb(ha->mem_ptr + IPS_REG_FLDP);
2491
2492                 } else {
2493                         /* Programmed I/O */
2494
2495                         /* test 1st byte */
2496                         outl(0, ha->io_addr + IPS_REG_FLAP);
2497                         if (ha->revision_id == IPS_REVID_TROMBONE64)
2498                                 udelay(25);     /* 25 us */
2499
2500                         if (inb(ha->io_addr + IPS_REG_FLDP) != 0x55)
2501                                 return;
2502
2503                         outl(cpu_to_le32(1), ha->io_addr + IPS_REG_FLAP);
2504                         if (ha->revision_id == IPS_REVID_TROMBONE64)
2505                                 udelay(25);     /* 25 us */
2506
2507                         if (inb(ha->io_addr + IPS_REG_FLDP) != 0xAA)
2508                                 return;
2509
2510                         /* Get Major version */
2511                         outl(cpu_to_le32(0x1FF), ha->io_addr + IPS_REG_FLAP);
2512                         if (ha->revision_id == IPS_REVID_TROMBONE64)
2513                                 udelay(25);     /* 25 us */
2514
2515                         major = inb(ha->io_addr + IPS_REG_FLDP);
2516
2517                         /* Get Minor version */
2518                         outl(cpu_to_le32(0x1FE), ha->io_addr + IPS_REG_FLAP);
2519                         if (ha->revision_id == IPS_REVID_TROMBONE64)
2520                                 udelay(25);     /* 25 us */
2521
2522                         minor = inb(ha->io_addr + IPS_REG_FLDP);
2523
2524                         /* Get SubMinor version */
2525                         outl(cpu_to_le32(0x1FD), ha->io_addr + IPS_REG_FLAP);
2526                         if (ha->revision_id == IPS_REVID_TROMBONE64)
2527                                 udelay(25);     /* 25 us */
2528
2529                         subminor = inb(ha->io_addr + IPS_REG_FLDP);
2530
2531                 }
2532         } else {
2533                 /* Morpheus Family - Send Command to the card */
2534
2535                 buffer = ha->ioctl_data;
2536
2537                 memset(buffer, 0, 0x1000);
2538
2539                 scb = &ha->scbs[ha->max_cmds - 1];
2540
2541                 ips_init_scb(ha, scb);
2542
2543                 scb->timeout = ips_cmd_timeout;
2544                 scb->cdb[0] = IPS_CMD_RW_BIOSFW;
2545
2546                 scb->cmd.flashfw.op_code = IPS_CMD_RW_BIOSFW;
2547                 scb->cmd.flashfw.command_id = IPS_COMMAND_ID(ha, scb);
2548                 scb->cmd.flashfw.type = 1;
2549                 scb->cmd.flashfw.direction = 0;
2550                 scb->cmd.flashfw.count = cpu_to_le32(0x800);
2551                 scb->cmd.flashfw.total_packets = 1;
2552                 scb->cmd.flashfw.packet_num = 0;
2553                 scb->data_len = 0x1000;
2554                 scb->cmd.flashfw.buffer_addr = ha->ioctl_busaddr;
2555
2556                 /* issue the command */
2557                 if (((ret =
2558                       ips_send_wait(ha, scb, ips_cmd_timeout,
2559                                     intr)) == IPS_FAILURE)
2560                     || (ret == IPS_SUCCESS_IMM)
2561                     || ((scb->basic_status & IPS_GSC_STATUS_MASK) > 1)) {
2562                         /* Error occurred */
2563
2564                         return;
2565                 }
2566
2567                 if ((buffer[0xC0] == 0x55) && (buffer[0xC1] == 0xAA)) {
2568                         major = buffer[0x1ff + 0xC0];   /* Offset 0x1ff after the header (0xc0) */
2569                         minor = buffer[0x1fe + 0xC0];   /* Offset 0x1fe after the header (0xc0) */
2570                         subminor = buffer[0x1fd + 0xC0];        /* Offset 0x1fd after the header (0xc0) */
2571                 } else {
2572                         return;
2573                 }
2574         }
2575
2576         ha->bios_version[0] = hexDigits[(major & 0xF0) >> 4];
2577         ha->bios_version[1] = '.';
2578         ha->bios_version[2] = hexDigits[major & 0x0F];
2579         ha->bios_version[3] = hexDigits[subminor];
2580         ha->bios_version[4] = '.';
2581         ha->bios_version[5] = hexDigits[(minor & 0xF0) >> 4];
2582         ha->bios_version[6] = hexDigits[minor & 0x0F];
2583         ha->bios_version[7] = 0;
2584 }
2585
2586 /****************************************************************************/
2587 /*                                                                          */
2588 /* Routine Name: ips_hainit                                                 */
2589 /*                                                                          */
2590 /* Routine Description:                                                     */
2591 /*                                                                          */
2592 /*   Initialize the controller                                              */
2593 /*                                                                          */
2594 /* NOTE: Assumes to be called from with a lock                              */
2595 /*                                                                          */
2596 /****************************************************************************/
2597 static int
2598 ips_hainit(ips_ha_t * ha)
2599 {
2600         int i;
2601         struct timeval tv;
2602
2603         METHOD_TRACE("ips_hainit", 1);
2604
2605         if (!ha)
2606                 return (0);
2607
2608         if (ha->func.statinit)
2609                 (*ha->func.statinit) (ha);
2610
2611         if (ha->func.enableint)
2612                 (*ha->func.enableint) (ha);
2613
2614         /* Send FFDC */
2615         ha->reset_count = 1;
2616         do_gettimeofday(&tv);
2617         ha->last_ffdc = tv.tv_sec;
2618         ips_ffdc_reset(ha, IPS_INTR_IORL);
2619
2620         if (!ips_read_config(ha, IPS_INTR_IORL)) {
2621                 IPS_PRINTK(KERN_WARNING, ha->pcidev,
2622                            "unable to read config from controller.\n");
2623
2624                 return (0);
2625         }
2626         /* end if */
2627         if (!ips_read_adapter_status(ha, IPS_INTR_IORL)) {
2628                 IPS_PRINTK(KERN_WARNING, ha->pcidev,
2629                            "unable to read controller status.\n");
2630
2631                 return (0);
2632         }
2633
2634         /* Identify this controller */
2635         ips_identify_controller(ha);
2636
2637         if (!ips_read_subsystem_parameters(ha, IPS_INTR_IORL)) {
2638                 IPS_PRINTK(KERN_WARNING, ha->pcidev,
2639                            "unable to read subsystem parameters.\n");
2640
2641                 return (0);
2642         }
2643
2644         /* write nvram user page 5 */
2645         if (!ips_write_driver_status(ha, IPS_INTR_IORL)) {
2646                 IPS_PRINTK(KERN_WARNING, ha->pcidev,
2647                            "unable to write driver info to controller.\n");
2648
2649                 return (0);
2650         }
2651
2652         /* If there are Logical Drives and a Reset Occurred, then an EraseStripeLock is Needed */
2653         if ((ha->conf->ucLogDriveCount > 0) && (ha->requires_esl == 1))
2654                 ips_clear_adapter(ha, IPS_INTR_IORL);
2655
2656         /* set limits on SID, LUN, BUS */
2657         ha->ntargets = IPS_MAX_TARGETS + 1;
2658         ha->nlun = 1;
2659         ha->nbus = (ha->enq->ucMaxPhysicalDevices / IPS_MAX_TARGETS) + 1;
2660
2661         switch (ha->conf->logical_drive[0].ucStripeSize) {
2662         case 4:
2663                 ha->max_xfer = 0x10000;
2664                 break;
2665
2666         case 5:
2667                 ha->max_xfer = 0x20000;
2668                 break;
2669
2670         case 6:
2671                 ha->max_xfer = 0x40000;
2672                 break;
2673
2674         case 7:
2675         default:
2676                 ha->max_xfer = 0x80000;
2677                 break;
2678         }
2679
2680         /* setup max concurrent commands */
2681         if (le32_to_cpu(ha->subsys->param[4]) & 0x1) {
2682                 /* Use the new method */
2683                 ha->max_cmds = ha->enq->ucConcurrentCmdCount;
2684         } else {
2685                 /* use the old method */
2686                 switch (ha->conf->logical_drive[0].ucStripeSize) {
2687                 case 4:
2688                         ha->max_cmds = 32;
2689                         break;
2690
2691                 case 5:
2692                         ha->max_cmds = 16;
2693                         break;
2694
2695                 case 6:
2696                         ha->max_cmds = 8;
2697                         break;
2698
2699                 case 7:
2700                 default:
2701                         ha->max_cmds = 4;
2702                         break;
2703                 }
2704         }
2705
2706         /* Limit the Active Commands on a Lite Adapter */
2707         if ((ha->ad_type == IPS_ADTYPE_SERVERAID3L) ||
2708             (ha->ad_type == IPS_ADTYPE_SERVERAID4L) ||
2709             (ha->ad_type == IPS_ADTYPE_SERVERAID4LX)) {
2710                 if ((ha->max_cmds > MaxLiteCmds) && (MaxLiteCmds))
2711                         ha->max_cmds = MaxLiteCmds;
2712         }
2713
2714         /* set controller IDs */
2715         ha->ha_id[0] = IPS_ADAPTER_ID;
2716         for (i = 1; i < ha->nbus; i++) {
2717                 ha->ha_id[i] = ha->conf->init_id[i - 1] & 0x1f;
2718                 ha->dcdb_active[i - 1] = 0;
2719         }
2720
2721         return (1);
2722 }
2723
2724 /****************************************************************************/
2725 /*                                                                          */
2726 /* Routine Name: ips_next                                                   */
2727 /*                                                                          */
2728 /* Routine Description:                                                     */
2729 /*                                                                          */
2730 /*   Take the next command off the queue and send it to the controller      */
2731 /*                                                                          */
2732 /****************************************************************************/
2733 static void
2734 ips_next(ips_ha_t * ha, int intr)
2735 {
2736         ips_scb_t *scb;
2737         Scsi_Cmnd *SC;
2738         Scsi_Cmnd *p;
2739         Scsi_Cmnd *q;
2740         ips_copp_wait_item_t *item;
2741         int ret;
2742         unsigned long cpu_flags = 0;
2743         struct Scsi_Host *host;
2744         METHOD_TRACE("ips_next", 1);
2745
2746         if (!ha)
2747                 return;
2748         host = ips_sh[ha->host_num];
2749         /*
2750          * Block access to the queue function so
2751          * this command won't time out
2752          */
2753         if (intr == IPS_INTR_ON)
2754                 IPS_LOCK_SAVE(host->host_lock, cpu_flags);
2755
2756         if ((ha->subsys->param[3] & 0x300000)
2757             && (ha->scb_activelist.count == 0)) {
2758                 struct timeval tv;
2759
2760                 do_gettimeofday(&tv);
2761
2762                 if (tv.tv_sec - ha->last_ffdc > IPS_SECS_8HOURS) {
2763                         ha->last_ffdc = tv.tv_sec;
2764                         ips_ffdc_time(ha);
2765                 }
2766         }
2767
2768         /*
2769          * Send passthru commands
2770          * These have priority over normal I/O
2771          * but shouldn't affect performance too much
2772          * since we limit the number that can be active
2773          * on the card at any one time
2774          */
2775         while ((ha->num_ioctl < IPS_MAX_IOCTL) &&
2776                (ha->copp_waitlist.head) && (scb = ips_getscb(ha))) {
2777
2778                 item = ips_removeq_copp_head(&ha->copp_waitlist);
2779                 ha->num_ioctl++;
2780                 if (intr == IPS_INTR_ON)
2781                         IPS_UNLOCK_RESTORE(host->host_lock, cpu_flags);
2782                 scb->scsi_cmd = item->scsi_cmd;
2783                 kfree(item);
2784
2785                 ret = ips_make_passthru(ha, scb->scsi_cmd, scb, intr);
2786
2787                 if (intr == IPS_INTR_ON)
2788                         IPS_LOCK_SAVE(host->host_lock, cpu_flags);
2789                 switch (ret) {
2790                 case IPS_FAILURE:
2791                         if (scb->scsi_cmd) {
2792                                 scb->scsi_cmd->result = DID_ERROR << 16;
2793                                 scb->scsi_cmd->scsi_done(scb->scsi_cmd);
2794                         }
2795
2796                         ips_freescb(ha, scb);
2797                         break;
2798                 case IPS_SUCCESS_IMM:
2799                         if (scb->scsi_cmd) {
2800                                 scb->scsi_cmd->result = DID_OK << 16;
2801                                 scb->scsi_cmd->scsi_done(scb->scsi_cmd);
2802                         }
2803
2804                         ips_freescb(ha, scb);
2805                         break;
2806                 default:
2807                         break;
2808                 }               /* end case */
2809
2810                 if (ret != IPS_SUCCESS) {
2811                         ha->num_ioctl--;
2812                         continue;
2813                 }
2814
2815                 ret = ips_send_cmd(ha, scb);
2816
2817                 if (ret == IPS_SUCCESS)
2818                         ips_putq_scb_head(&ha->scb_activelist, scb);
2819                 else
2820                         ha->num_ioctl--;
2821
2822                 switch (ret) {
2823                 case IPS_FAILURE:
2824                         if (scb->scsi_cmd) {
2825                                 scb->scsi_cmd->result = DID_ERROR << 16;
2826                         }
2827
2828                         ips_freescb(ha, scb);
2829                         break;
2830                 case IPS_SUCCESS_IMM:
2831                         ips_freescb(ha, scb);
2832                         break;
2833                 default:
2834                         break;
2835                 }               /* end case */
2836
2837         }
2838
2839         /*
2840          * Send "Normal" I/O commands
2841          */
2842
2843         p = ha->scb_waitlist.head;
2844         while ((p) && (scb = ips_getscb(ha))) {
2845                 if ((scmd_channel(p) > 0)
2846                     && (ha->
2847                         dcdb_active[scmd_channel(p) -
2848                                     1] & (1 << scmd_id(p)))) {
2849                         ips_freescb(ha, scb);
2850                         p = (Scsi_Cmnd *) p->host_scribble;
2851                         continue;
2852                 }
2853
2854                 q = p;
2855                 SC = ips_removeq_wait(&ha->scb_waitlist, q);
2856
2857                 if (intr == IPS_INTR_ON)
2858                         IPS_UNLOCK_RESTORE(host->host_lock, cpu_flags); /* Unlock HA after command is taken off queue */
2859
2860                 SC->result = DID_OK;
2861                 SC->host_scribble = NULL;
2862
2863                 memset(SC->sense_buffer, 0, sizeof (SC->sense_buffer));
2864
2865                 scb->target_id = SC->device->id;
2866                 scb->lun = SC->device->lun;
2867                 scb->bus = SC->device->channel;
2868                 scb->scsi_cmd = SC;
2869                 scb->breakup = 0;
2870                 scb->data_len = 0;
2871                 scb->callback = ipsintr_done;
2872                 scb->timeout = ips_cmd_timeout;
2873                 memset(&scb->cmd, 0, 16);
2874
2875                 /* copy in the CDB */
2876                 memcpy(scb->cdb, SC->cmnd, SC->cmd_len);
2877
2878                 /* Now handle the data buffer */
2879                 if (SC->use_sg) {
2880                         struct scatterlist *sg;
2881                         int i;
2882
2883                         sg = SC->request_buffer;
2884                         scb->sg_count = pci_map_sg(ha->pcidev, sg, SC->use_sg,
2885                                                    SC->sc_data_direction);
2886                         scb->flags |= IPS_SCB_MAP_SG;
2887                         for (i = 0; i < scb->sg_count; i++) {
2888                                 if (ips_fill_scb_sg_single
2889                                     (ha, sg_dma_address(&sg[i]), scb, i,
2890                                      sg_dma_len(&sg[i])) < 0)
2891                                         break;
2892                         }
2893                         scb->dcdb.transfer_length = scb->data_len;
2894                 } else {
2895                         if (SC->request_bufflen) {
2896                                 scb->data_busaddr =
2897                                     pci_map_single(ha->pcidev,
2898                                                    SC->request_buffer,
2899                                                    SC->request_bufflen,
2900                                                    SC->sc_data_direction);
2901                                 scb->flags |= IPS_SCB_MAP_SINGLE;
2902                                 ips_fill_scb_sg_single(ha, scb->data_busaddr,
2903                                                        scb, 0,
2904                                                        SC->request_bufflen);
2905                                 scb->dcdb.transfer_length = scb->data_len;
2906                         } else {
2907                                 scb->data_busaddr = 0L;
2908                                 scb->sg_len = 0;
2909                                 scb->data_len = 0;
2910                                 scb->dcdb.transfer_length = 0;
2911                         }
2912
2913                 }
2914
2915                 scb->dcdb.cmd_attribute =
2916                     ips_command_direction[scb->scsi_cmd->cmnd[0]];
2917
2918         /* Allow a WRITE BUFFER Command to Have no Data */
2919         /* This is Used by Tape Flash Utilites          */
2920         if ((scb->scsi_cmd->cmnd[0] == WRITE_BUFFER) && (scb->data_len == 0))
2921             scb->dcdb.cmd_attribute = 0;
2922
2923                 if (!(scb->dcdb.cmd_attribute & 0x3))
2924                         scb->dcdb.transfer_length = 0;
2925
2926                 if (scb->data_len >= IPS_MAX_XFER) {
2927                         scb->dcdb.cmd_attribute |= IPS_TRANSFER64K;
2928                         scb->dcdb.transfer_length = 0;
2929                 }
2930                 if (intr == IPS_INTR_ON)
2931                         IPS_LOCK_SAVE(host->host_lock, cpu_flags);
2932
2933                 ret = ips_send_cmd(ha, scb);
2934
2935                 switch (ret) {
2936                 case IPS_SUCCESS:
2937                         ips_putq_scb_head(&ha->scb_activelist, scb);
2938                         break;
2939                 case IPS_FAILURE:
2940                         if (scb->scsi_cmd) {
2941                                 scb->scsi_cmd->result = DID_ERROR << 16;
2942                                 scb->scsi_cmd->scsi_done(scb->scsi_cmd);
2943                         }
2944
2945                         if (scb->bus)
2946                                 ha->dcdb_active[scb->bus - 1] &=
2947                                     ~(1 << scb->target_id);
2948
2949                         ips_freescb(ha, scb);
2950                         break;
2951                 case IPS_SUCCESS_IMM:
2952                         if (scb->scsi_cmd)
2953                                 scb->scsi_cmd->scsi_done(scb->scsi_cmd);
2954
2955                         if (scb->bus)
2956                                 ha->dcdb_active[scb->bus - 1] &=
2957                                     ~(1 << scb->target_id);
2958
2959                         ips_freescb(ha, scb);
2960                         break;
2961                 default:
2962                         break;
2963                 }               /* end case */
2964
2965                 p = (Scsi_Cmnd *) p->host_scribble;
2966
2967         }                       /* end while */
2968
2969         if (intr == IPS_INTR_ON)
2970                 IPS_UNLOCK_RESTORE(host->host_lock, cpu_flags);
2971 }
2972
2973 /****************************************************************************/
2974 /*                                                                          */
2975 /* Routine Name: ips_putq_scb_head                                          */
2976 /*                                                                          */
2977 /* Routine Description:                                                     */
2978 /*                                                                          */
2979 /*   Add an item to the head of the queue                                   */
2980 /*                                                                          */
2981 /* ASSUMED to be called from within the HA lock                             */
2982 /*                                                                          */
2983 /****************************************************************************/
2984 static void
2985 ips_putq_scb_head(ips_scb_queue_t * queue, ips_scb_t * item)
2986 {
2987         METHOD_TRACE("ips_putq_scb_head", 1);
2988
2989         if (!item)
2990                 return;
2991
2992         item->q_next = queue->head;
2993         queue->head = item;
2994
2995         if (!queue->tail)
2996                 queue->tail = item;
2997
2998         queue->count++;
2999 }
3000
3001 /****************************************************************************/
3002 /*                                                                          */
3003 /* Routine Name: ips_removeq_scb_head                                       */
3004 /*                                                                          */
3005 /* Routine Description:                                                     */
3006 /*                                                                          */
3007 /*   Remove the head of the queue                                           */
3008 /*                                                                          */
3009 /* ASSUMED to be called from within the HA lock                             */
3010 /*                                                                          */
3011 /****************************************************************************/
3012 static ips_scb_t *
3013 ips_removeq_scb_head(ips_scb_queue_t * queue)
3014 {
3015         ips_scb_t *item;
3016
3017         METHOD_TRACE("ips_removeq_scb_head", 1);
3018
3019         item = queue->head;
3020
3021         if (!item) {
3022                 return (NULL);
3023         }
3024
3025         queue->head = item->q_next;
3026         item->q_next = NULL;
3027
3028         if (queue->tail == item)
3029                 queue->tail = NULL;
3030
3031         queue->count--;
3032
3033         return (item);
3034 }
3035
3036 /****************************************************************************/
3037 /*                                                                          */
3038 /* Routine Name: ips_removeq_scb                                            */
3039 /*                                                                          */
3040 /* Routine Description:                                                     */
3041 /*                                                                          */
3042 /*   Remove an item from a queue                                            */
3043 /*                                                                          */
3044 /* ASSUMED to be called from within the HA lock                             */
3045 /*                                                                          */
3046 /****************************************************************************/
3047 static ips_scb_t *
3048 ips_removeq_scb(ips_scb_queue_t * queue, ips_scb_t * item)
3049 {
3050         ips_scb_t *p;
3051
3052         METHOD_TRACE("ips_removeq_scb", 1);
3053
3054         if (!item)
3055                 return (NULL);
3056
3057         if (item == queue->head) {
3058                 return (ips_removeq_scb_head(queue));
3059         }
3060
3061         p = queue->head;
3062
3063         while ((p) && (item != p->q_next))
3064                 p = p->q_next;
3065
3066         if (p) {
3067                 /* found a match */
3068                 p->q_next = item->q_next;
3069
3070                 if (!item->q_next)
3071                         queue->tail = p;
3072
3073                 item->q_next = NULL;
3074                 queue->count--;
3075
3076                 return (item);
3077         }
3078
3079         return (NULL);
3080 }
3081
3082 /****************************************************************************/
3083 /*                                                                          */
3084 /* Routine Name: ips_putq_wait_tail                                         */
3085 /*                                                                          */
3086 /* Routine Description:                                                     */
3087 /*                                                                          */
3088 /*   Add an item to the tail of the queue                                   */
3089 /*                                                                          */
3090 /* ASSUMED to be called from within the HA lock                             */
3091 /*                                                                          */
3092 /****************************************************************************/
3093 static void
3094 ips_putq_wait_tail(ips_wait_queue_t * queue, Scsi_Cmnd * item)
3095 {
3096         METHOD_TRACE("ips_putq_wait_tail", 1);
3097
3098         if (!item)
3099                 return;
3100
3101         item->host_scribble = NULL;
3102
3103         if (queue->tail)
3104                 queue->tail->host_scribble = (char *) item;
3105
3106         queue->tail = item;
3107
3108         if (!queue->head)
3109                 queue->head = item;
3110
3111         queue->count++;
3112 }
3113
3114 /****************************************************************************/
3115 /*                                                                          */
3116 /* Routine Name: ips_removeq_wait_head                                      */
3117 /*                                                                          */
3118 /* Routine Description:                                                     */
3119 /*                                                                          */
3120 /*   Remove the head of the queue                                           */
3121 /*                                                                          */
3122 /* ASSUMED to be called from within the HA lock                             */
3123 /*                                                                          */
3124 /****************************************************************************/
3125 static Scsi_Cmnd *
3126 ips_removeq_wait_head(ips_wait_queue_t * queue)
3127 {
3128         Scsi_Cmnd *item;
3129
3130         METHOD_TRACE("ips_removeq_wait_head", 1);
3131
3132         item = queue->head;
3133
3134         if (!item) {
3135                 return (NULL);
3136         }
3137
3138         queue->head = (Scsi_Cmnd *) item->host_scribble;
3139         item->host_scribble = NULL;
3140
3141         if (queue->tail == item)
3142                 queue->tail = NULL;
3143
3144         queue->count--;
3145
3146         return (item);
3147 }
3148
3149 /****************************************************************************/
3150 /*                                                                          */
3151 /* Routine Name: ips_removeq_wait                                           */
3152 /*                                                                          */
3153 /* Routine Description:                                                     */
3154 /*                                                                          */
3155 /*   Remove an item from a queue                                            */
3156 /*                                                                          */
3157 /* ASSUMED to be called from within the HA lock                             */
3158 /*                                                                          */
3159 /****************************************************************************/
3160 static Scsi_Cmnd *
3161 ips_removeq_wait(ips_wait_queue_t * queue, Scsi_Cmnd * item)
3162 {
3163         Scsi_Cmnd *p;
3164
3165         METHOD_TRACE("ips_removeq_wait", 1);
3166
3167         if (!item)
3168                 return (NULL);
3169
3170         if (item == queue->head) {
3171                 return (ips_removeq_wait_head(queue));
3172         }
3173
3174         p = queue->head;
3175
3176         while ((p) && (item != (Scsi_Cmnd *) p->host_scribble))
3177                 p = (Scsi_Cmnd *) p->host_scribble;
3178
3179         if (p) {
3180                 /* found a match */
3181                 p->host_scribble = item->host_scribble;
3182
3183                 if (!item->host_scribble)
3184                         queue->tail = p;
3185
3186                 item->host_scribble = NULL;
3187                 queue->count--;
3188
3189                 return (item);
3190         }
3191
3192         return (NULL);
3193 }
3194
3195 /****************************************************************************/
3196 /*                                                                          */
3197 /* Routine Name: ips_putq_copp_tail                                         */
3198 /*                                                                          */
3199 /* Routine Description:                                                     */
3200 /*                                                                          */
3201 /*   Add an item to the tail of the queue                                   */
3202 /*                                                                          */
3203 /* ASSUMED to be called from within the HA lock                             */
3204 /*                                                                          */
3205 /****************************************************************************/
3206 static void
3207 ips_putq_copp_tail(ips_copp_queue_t * queue, ips_copp_wait_item_t * item)
3208 {
3209         METHOD_TRACE("ips_putq_copp_tail", 1);
3210
3211         if (!item)
3212                 return;
3213
3214         item->next = NULL;
3215
3216         if (queue->tail)
3217                 queue->tail->next = item;
3218
3219         queue->tail = item;
3220
3221         if (!queue->head)
3222                 queue->head = item;
3223
3224         queue->count++;
3225 }
3226
3227 /****************************************************************************/
3228 /*                                                                          */
3229 /* Routine Name: ips_removeq_copp_head                                      */
3230 /*                                                                          */
3231 /* Routine Description:                                                     */
3232 /*                                                                          */
3233 /*   Remove the head of the queue                                           */
3234 /*                                                                          */
3235 /* ASSUMED to be called from within the HA lock                             */
3236 /*                                                                          */
3237 /****************************************************************************/
3238 static ips_copp_wait_item_t *
3239 ips_removeq_copp_head(ips_copp_queue_t * queue)
3240 {
3241         ips_copp_wait_item_t *item;
3242
3243         METHOD_TRACE("ips_removeq_copp_head", 1);
3244
3245         item = queue->head;
3246
3247         if (!item) {
3248                 return (NULL);
3249         }
3250
3251         queue->head = item->next;
3252         item->next = NULL;
3253
3254         if (queue->tail == item)
3255                 queue->tail = NULL;
3256
3257         queue->count--;
3258
3259         return (item);
3260 }
3261
3262 /****************************************************************************/
3263 /*                                                                          */
3264 /* Routine Name: ips_removeq_copp                                           */
3265 /*                                                                          */
3266 /* Routine Description:                                                     */
3267 /*                                                                          */
3268 /*   Remove an item from a queue                                            */
3269 /*                                                                          */
3270 /* ASSUMED to be called from within the HA lock                             */
3271 /*                                                                          */
3272 /****************************************************************************/
3273 static ips_copp_wait_item_t *
3274 ips_removeq_copp(ips_copp_queue_t * queue, ips_copp_wait_item_t * item)
3275 {
3276         ips_copp_wait_item_t *p;
3277
3278         METHOD_TRACE("ips_removeq_copp", 1);
3279
3280         if (!item)
3281                 return (NULL);
3282
3283         if (item == queue->head) {
3284                 return (ips_removeq_copp_head(queue));
3285         }
3286
3287         p = queue->head;
3288
3289         while ((p) && (item != p->next))
3290                 p = p->next;
3291
3292         if (p) {
3293                 /* found a match */
3294                 p->next = item->next;
3295
3296                 if (!item->next)
3297                         queue->tail = p;
3298
3299                 item->next = NULL;
3300                 queue->count--;
3301
3302                 return (item);
3303         }
3304
3305         return (NULL);
3306 }
3307
3308 /****************************************************************************/
3309 /*                                                                          */
3310 /* Routine Name: ipsintr_blocking                                           */
3311 /*                                                                          */
3312 /* Routine Description:                                                     */
3313 /*                                                                          */
3314 /*   Finalize an interrupt for internal commands                            */
3315 /*                                                                          */
3316 /****************************************************************************/
3317 static void
3318 ipsintr_blocking(ips_ha_t * ha, ips_scb_t * scb)
3319 {
3320         METHOD_TRACE("ipsintr_blocking", 2);
3321
3322         ips_freescb(ha, scb);
3323         if ((ha->waitflag == TRUE) && (ha->cmd_in_progress == scb->cdb[0])) {
3324                 ha->waitflag = FALSE;
3325
3326                 return;
3327         }
3328 }
3329
3330 /****************************************************************************/
3331 /*                                                                          */
3332 /* Routine Name: ipsintr_done                                               */
3333 /*                                                                          */
3334 /* Routine Description:                                                     */
3335 /*                                                                          */
3336 /*   Finalize an interrupt for non-internal commands                        */
3337 /*                                                                          */
3338 /****************************************************************************/
3339 static void
3340 ipsintr_done(ips_ha_t * ha, ips_scb_t * scb)
3341 {
3342         METHOD_TRACE("ipsintr_done", 2);
3343
3344         if (!scb) {
3345                 IPS_PRINTK(KERN_WARNING, ha->pcidev,
3346                            "Spurious interrupt; scb NULL.\n");
3347
3348                 return;
3349         }
3350
3351         if (scb->scsi_cmd == NULL) {
3352                 /* unexpected interrupt */
3353                 IPS_PRINTK(KERN_WARNING, ha->pcidev,
3354                            "Spurious interrupt; scsi_cmd not set.\n");
3355
3356                 return;
3357         }
3358
3359         ips_done(ha, scb);
3360 }
3361
3362 /****************************************************************************/
3363 /*                                                                          */
3364 /* Routine Name: ips_done                                                   */
3365 /*                                                                          */
3366 /* Routine Description:                                                     */
3367 /*                                                                          */
3368 /*   Do housekeeping on completed commands                                  */
3369 /*  ASSUMED to be called form within the request lock                       */
3370 /****************************************************************************/
3371 static void
3372 ips_done(ips_ha_t * ha, ips_scb_t * scb)
3373 {
3374         int ret;
3375
3376         METHOD_TRACE("ips_done", 1);
3377
3378         if (!scb)
3379                 return;
3380
3381         if ((scb->scsi_cmd) && (ips_is_passthru(scb->scsi_cmd))) {
3382                 ips_cleanup_passthru(ha, scb);
3383                 ha->num_ioctl--;
3384         } else {
3385                 /*
3386                  * Check to see if this command had too much
3387                  * data and had to be broke up.  If so, queue
3388                  * the rest of the data and continue.
3389                  */
3390                 if ((scb->breakup) || (scb->sg_break)) {
3391                         /* we had a data breakup */
3392                         scb->data_len = 0;
3393
3394                         if (scb->sg_count) {
3395                                 /* S/G request */
3396                                 struct scatterlist *sg;
3397                                 int ips_sg_index = 0;
3398                                 int sg_dma_index;
3399
3400                                 sg = scb->scsi_cmd->request_buffer;
3401
3402                                 /* Spin forward to last dma chunk */
3403                                 sg_dma_index = scb->breakup;
3404
3405                                 /* Take care of possible partial on last chunk */
3406                                 ips_fill_scb_sg_single(ha,
3407                                                        sg_dma_address(&sg
3408                                                                       [sg_dma_index]),
3409                                                        scb, ips_sg_index++,
3410                                                        sg_dma_len(&sg
3411                                                                   [sg_dma_index]));
3412
3413                                 for (; sg_dma_index < scb->sg_count;
3414                                      sg_dma_index++) {
3415                                         if (ips_fill_scb_sg_single
3416                                             (ha,
3417                                              sg_dma_address(&sg[sg_dma_index]),
3418                                              scb, ips_sg_index++,
3419                                              sg_dma_len(&sg[sg_dma_index])) < 0)
3420                                                 break;
3421
3422                                 }
3423
3424                         } else {
3425                                 /* Non S/G Request */
3426                                 (void) ips_fill_scb_sg_single(ha,
3427                                                               scb->
3428                                                               data_busaddr +
3429                                                               (scb->sg_break *
3430                                                                ha->max_xfer),
3431                                                               scb, 0,
3432                                                               scb->scsi_cmd->
3433                                                               request_bufflen -
3434                                                               (scb->sg_break *
3435                                                                ha->max_xfer));
3436                         }
3437
3438                         scb->dcdb.transfer_length = scb->data_len;
3439                         scb->dcdb.cmd_attribute |=
3440                             ips_command_direction[scb->scsi_cmd->cmnd[0]];
3441
3442                         if (!(scb->dcdb.cmd_attribute & 0x3))
3443                                 scb->dcdb.transfer_length = 0;
3444
3445                         if (scb->data_len >= IPS_MAX_XFER) {
3446                                 scb->dcdb.cmd_attribute |= IPS_TRANSFER64K;
3447                                 scb->dcdb.transfer_length = 0;
3448                         }
3449
3450                         ret = ips_send_cmd(ha, scb);
3451
3452                         switch (ret) {
3453                         case IPS_FAILURE:
3454                                 if (scb->scsi_cmd) {
3455                                         scb->scsi_cmd->result = DID_ERROR << 16;
3456                                         scb->scsi_cmd->scsi_done(scb->scsi_cmd);
3457                                 }
3458
3459                                 ips_freescb(ha, scb);
3460                                 break;
3461                         case IPS_SUCCESS_IMM:
3462                                 if (scb->scsi_cmd) {
3463                                         scb->scsi_cmd->result = DID_ERROR << 16;
3464                                         scb->scsi_cmd->scsi_done(scb->scsi_cmd);
3465                                 }
3466
3467                                 ips_freescb(ha, scb);
3468                                 break;
3469                         default:
3470                                 break;
3471                         }       /* end case */
3472
3473                         return;
3474                 }
3475         }                       /* end if passthru */
3476
3477         if (scb->bus) {
3478                 ha->dcdb_active[scb->bus - 1] &= ~(1 << scb->target_id);
3479         }
3480
3481         scb->scsi_cmd->scsi_done(scb->scsi_cmd);
3482
3483         ips_freescb(ha, scb);
3484 }
3485
3486 /****************************************************************************/
3487 /*                                                                          */
3488 /* Routine Name: ips_map_status                                             */
3489 /*                                                                          */
3490 /* Routine Description:                                                     */
3491 /*                                                                          */
3492 /*   Map Controller Error codes to Linux Error Codes                        */
3493 /*                                                                          */
3494 /****************************************************************************/
3495 static int
3496 ips_map_status(ips_ha_t * ha, ips_scb_t * scb, ips_stat_t * sp)
3497 {
3498         int errcode;
3499         int device_error;
3500         uint32_t transfer_len;
3501         IPS_DCDB_TABLE_TAPE *tapeDCDB;
3502
3503         METHOD_TRACE("ips_map_status", 1);
3504
3505         if (scb->bus) {
3506                 DEBUG_VAR(2,
3507                           "(%s%d) Physical device error (%d %d %d): %x %x, Sense Key: %x, ASC: %x, ASCQ: %x",
3508                           ips_name, ha->host_num,
3509                           scb->scsi_cmd->device->channel,
3510                           scb->scsi_cmd->device->id, scb->scsi_cmd->device->lun,
3511                           scb->basic_status, scb->extended_status,
3512                           scb->extended_status ==
3513                           IPS_ERR_CKCOND ? scb->dcdb.sense_info[2] & 0xf : 0,
3514                           scb->extended_status ==
3515                           IPS_ERR_CKCOND ? scb->dcdb.sense_info[12] : 0,
3516                           scb->extended_status ==
3517                           IPS_ERR_CKCOND ? scb->dcdb.sense_info[13] : 0);
3518         }
3519
3520         /* default driver error */
3521         errcode = DID_ERROR;
3522         device_error = 0;
3523
3524         switch (scb->basic_status & IPS_GSC_STATUS_MASK) {
3525         case IPS_CMD_TIMEOUT:
3526                 errcode = DID_TIME_OUT;
3527                 break;
3528
3529         case IPS_INVAL_OPCO:
3530         case IPS_INVAL_CMD_BLK:
3531         case IPS_INVAL_PARM_BLK:
3532         case IPS_LD_ERROR:
3533         case IPS_CMD_CMPLT_WERROR:
3534                 break;
3535
3536         case IPS_PHYS_DRV_ERROR:
3537                 switch (scb->extended_status) {
3538                 case IPS_ERR_SEL_TO:
3539                         if (scb->bus)
3540                                 errcode = DID_NO_CONNECT;
3541
3542                         break;
3543
3544                 case IPS_ERR_OU_RUN:
3545                         if ((scb->cmd.dcdb.op_code == IPS_CMD_EXTENDED_DCDB) ||
3546                             (scb->cmd.dcdb.op_code ==
3547                              IPS_CMD_EXTENDED_DCDB_SG)) {
3548                                 tapeDCDB = (IPS_DCDB_TABLE_TAPE *) & scb->dcdb;
3549                                 transfer_len = tapeDCDB->transfer_length;
3550                         } else {
3551                                 transfer_len =
3552                                     (uint32_t) scb->dcdb.transfer_length;
3553                         }
3554
3555                         if ((scb->bus) && (transfer_len < scb->data_len)) {
3556                                 /* Underrun - set default to no error */
3557                                 errcode = DID_OK;
3558
3559                                 /* Restrict access to physical DASD */
3560                                 if ((scb->scsi_cmd->cmnd[0] == INQUIRY) &&
3561                                     ((((char *) scb->scsi_cmd->
3562                                        buffer)[0] & 0x1f) == TYPE_DISK)) {
3563                                         /* underflow -- no error               */
3564                                         /* restrict access to physical DASD    */
3565                                         errcode = DID_TIME_OUT;
3566                                         break;
3567                                 }
3568                         } else
3569                                 errcode = DID_ERROR;
3570
3571                         break;
3572
3573                 case IPS_ERR_RECOVERY:
3574                         /* don't fail recovered errors */
3575                         if (scb->bus)
3576                                 errcode = DID_OK;
3577
3578                         break;
3579
3580                 case IPS_ERR_HOST_RESET:
3581                 case IPS_ERR_DEV_RESET:
3582                         errcode = DID_RESET;
3583                         break;
3584
3585                 case IPS_ERR_CKCOND:
3586                         if (scb->bus) {
3587                                 if ((scb->cmd.dcdb.op_code ==
3588                                      IPS_CMD_EXTENDED_DCDB)
3589                                     || (scb->cmd.dcdb.op_code ==
3590                                         IPS_CMD_EXTENDED_DCDB_SG)) {
3591                                         tapeDCDB =
3592                                             (IPS_DCDB_TABLE_TAPE *) & scb->dcdb;
3593                                         memcpy(scb->scsi_cmd->sense_buffer,
3594                                                tapeDCDB->sense_info,
3595                                                sizeof (scb->scsi_cmd->
3596                                                        sense_buffer));
3597                                 } else {
3598                                         memcpy(scb->scsi_cmd->sense_buffer,
3599                                                scb->dcdb.sense_info,
3600                                                sizeof (scb->scsi_cmd->
3601                                                        sense_buffer));
3602                                 }
3603                                 device_error = 2;       /* check condition */
3604                         }
3605
3606                         errcode = DID_OK;
3607
3608                         break;
3609
3610                 default:
3611                         errcode = DID_ERROR;
3612                         break;
3613
3614                 }               /* end switch */
3615         }                       /* end switch */
3616
3617         scb->scsi_cmd->result = device_error | (errcode << 16);
3618
3619         return (1);
3620 }
3621
3622 /****************************************************************************/
3623 /*                                                                          */
3624 /* Routine Name: ips_send_wait                                              */
3625 /*                                                                          */
3626 /* Routine Description:                                                     */
3627 /*                                                                          */
3628 /*   Send a command to the controller and wait for it to return             */
3629 /*                                                                          */
3630 /*   The FFDC Time Stamp use this function for the callback, but doesn't    */
3631 /*   actually need to wait.                                                 */
3632 /****************************************************************************/
3633 static int
3634 ips_send_wait(ips_ha_t * ha, ips_scb_t * scb, int timeout, int intr)
3635 {
3636         int ret;
3637
3638         METHOD_TRACE("ips_send_wait", 1);
3639
3640         if (intr != IPS_FFDC) { /* Won't be Waiting if this is a Time Stamp */
3641                 ha->waitflag = TRUE;
3642                 ha->cmd_in_progress = scb->cdb[0];
3643         }
3644         scb->callback = ipsintr_blocking;
3645         ret = ips_send_cmd(ha, scb);
3646
3647         if ((ret == IPS_FAILURE) || (ret == IPS_SUCCESS_IMM))
3648                 return (ret);
3649
3650         if (intr != IPS_FFDC)   /* Don't Wait around if this is a Time Stamp */
3651                 ret = ips_wait(ha, timeout, intr);
3652
3653         return (ret);
3654 }
3655
3656 /****************************************************************************/
3657 /*                                                                          */
3658 /* Routine Name: ips_scmd_buf_write                                         */
3659 /*                                                                          */
3660 /* Routine Description:                                                     */
3661 /*  Write data to Scsi_Cmnd request_buffer at proper offsets                */
3662 /****************************************************************************/
3663 static void
3664 ips_scmd_buf_write(Scsi_Cmnd * scmd, void *data, unsigned
3665                    int count)
3666 {
3667         if (scmd->use_sg) {
3668                 int i;
3669                 unsigned int min_cnt, xfer_cnt;
3670                 char *cdata = (char *) data;
3671                 unsigned char *buffer;
3672                 unsigned long flags;
3673                 struct scatterlist *sg = scmd->request_buffer;
3674                 for (i = 0, xfer_cnt = 0;
3675                      (i < scmd->use_sg) && (xfer_cnt < count); i++) {
3676                         min_cnt = min(count - xfer_cnt, sg[i].length);
3677
3678                         /* kmap_atomic() ensures addressability of the data buffer.*/
3679                         /* local_irq_save() protects the KM_IRQ0 address slot.     */
3680                         local_irq_save(flags);
3681                         buffer = kmap_atomic(sg[i].page, KM_IRQ0) + sg[i].offset;
3682                         memcpy(buffer, &cdata[xfer_cnt], min_cnt);
3683                         kunmap_atomic(buffer - sg[i].offset, KM_IRQ0);
3684                         local_irq_restore(flags);
3685
3686                         xfer_cnt += min_cnt;
3687                 }
3688
3689         } else {
3690                 unsigned int min_cnt = min(count, scmd->request_bufflen);
3691                 memcpy(scmd->request_buffer, data, min_cnt);
3692         }
3693 }
3694
3695 /****************************************************************************/
3696 /*                                                                          */
3697 /* Routine Name: ips_scmd_buf_read                                          */
3698 /*                                                                          */
3699 /* Routine Description:                                                     */
3700 /*  Copy data from a Scsi_Cmnd to a new, linear buffer                      */
3701 /****************************************************************************/
3702 static void
3703 ips_scmd_buf_read(Scsi_Cmnd * scmd, void *data, unsigned
3704                   int count)
3705 {
3706         if (scmd->use_sg) {
3707                 int i;
3708                 unsigned int min_cnt, xfer_cnt;
3709                 char *cdata = (char *) data;
3710                 unsigned char *buffer;
3711                 unsigned long flags;
3712                 struct scatterlist *sg = scmd->request_buffer;
3713                 for (i = 0, xfer_cnt = 0;
3714                      (i < scmd->use_sg) && (xfer_cnt < count); i++) {
3715                         min_cnt = min(count - xfer_cnt, sg[i].length);
3716
3717                         /* kmap_atomic() ensures addressability of the data buffer.*/
3718                         /* local_irq_save() protects the KM_IRQ0 address slot.     */
3719                         local_irq_save(flags);
3720                         buffer = kmap_atomic(sg[i].page, KM_IRQ0) + sg[i].offset;
3721                         memcpy(&cdata[xfer_cnt], buffer, min_cnt);
3722                         kunmap_atomic(buffer - sg[i].offset, KM_IRQ0);
3723                         local_irq_restore(flags);
3724
3725                         xfer_cnt += min_cnt;
3726                 }
3727
3728         } else {
3729                 unsigned int min_cnt = min(count, scmd->request_bufflen);
3730                 memcpy(data, scmd->request_buffer, min_cnt);
3731         }
3732 }
3733
3734 /****************************************************************************/
3735 /*                                                                          */
3736 /* Routine Name: ips_send_cmd                                               */
3737 /*                                                                          */
3738 /* Routine Description:                                                     */
3739 /*                                                                          */
3740 /*   Map SCSI commands to ServeRAID commands for logical drives             */
3741 /*                                                                          */
3742 /****************************************************************************/
3743 static int
3744 ips_send_cmd(ips_ha_t * ha, ips_scb_t * scb)
3745 {
3746         int ret;
3747         char *sp;
3748         int device_error;
3749         IPS_DCDB_TABLE_TAPE *tapeDCDB;
3750         int TimeOut;
3751
3752         METHOD_TRACE("ips_send_cmd", 1);
3753
3754         ret = IPS_SUCCESS;
3755
3756         if (!scb->scsi_cmd) {
3757                 /* internal command */
3758
3759                 if (scb->bus > 0) {
3760                         /* Controller commands can't be issued */
3761                         /* to real devices -- fail them        */
3762                         if ((ha->waitflag == TRUE) &&
3763                             (ha->cmd_in_progress == scb->cdb[0])) {
3764                                 ha->waitflag = FALSE;
3765                         }
3766
3767                         return (1);
3768                 }
3769         } else if ((scb->bus == 0) && (!ips_is_passthru(scb->scsi_cmd))) {
3770                 /* command to logical bus -- interpret */
3771                 ret = IPS_SUCCESS_IMM;
3772
3773                 switch (scb->scsi_cmd->cmnd[0]) {
3774                 case ALLOW_MEDIUM_REMOVAL:
3775                 case REZERO_UNIT:
3776                 case ERASE:
3777                 case WRITE_FILEMARKS:
3778                 case SPACE:
3779                         scb->scsi_cmd->result = DID_ERROR << 16;
3780                         break;
3781
3782                 case START_STOP:
3783                         scb->scsi_cmd->result = DID_OK << 16;
3784
3785                 case TEST_UNIT_READY:
3786                 case INQUIRY:
3787                         if (scb->target_id == IPS_ADAPTER_ID) {
3788                                 /*
3789                                  * Either we have a TUR
3790                                  * or we have a SCSI inquiry
3791                                  */
3792                                 if (scb->scsi_cmd->cmnd[0] == TEST_UNIT_READY)
3793                                         scb->scsi_cmd->result = DID_OK << 16;
3794
3795                                 if (scb->scsi_cmd->cmnd[0] == INQUIRY) {
3796                                         IPS_SCSI_INQ_DATA inquiry;
3797
3798                                         memset(&inquiry, 0,
3799                                                sizeof (IPS_SCSI_INQ_DATA));
3800
3801                                         inquiry.DeviceType =
3802                                             IPS_SCSI_INQ_TYPE_PROCESSOR;
3803                                         inquiry.DeviceTypeQualifier =
3804                                             IPS_SCSI_INQ_LU_CONNECTED;
3805                                         inquiry.Version = IPS_SCSI_INQ_REV2;
3806                                         inquiry.ResponseDataFormat =
3807                                             IPS_SCSI_INQ_RD_REV2;
3808                                         inquiry.AdditionalLength = 31;
3809                                         inquiry.Flags[0] =
3810                                             IPS_SCSI_INQ_Address16;
3811                                         inquiry.Flags[1] =
3812                                             IPS_SCSI_INQ_WBus16 |
3813                                             IPS_SCSI_INQ_Sync;
3814                                         strncpy(inquiry.VendorId, "IBM     ",
3815                                                 8);
3816                                         strncpy(inquiry.ProductId,
3817                                                 "SERVERAID       ", 16);
3818                                         strncpy(inquiry.ProductRevisionLevel,
3819                                                 "1.00", 4);
3820
3821                                         ips_scmd_buf_write(scb->scsi_cmd,
3822                                                            &inquiry,
3823                                                            sizeof (inquiry));
3824
3825                                         scb->scsi_cmd->result = DID_OK << 16;
3826                                 }
3827                         } else {
3828                                 scb->cmd.logical_info.op_code = IPS_CMD_GET_LD_INFO;
3829                                 scb->cmd.logical_info.command_id = IPS_COMMAND_ID(ha, scb);
3830                                 scb->cmd.logical_info.reserved = 0;
3831                                 scb->cmd.logical_info.reserved2 = 0;
3832                                 scb->data_len = sizeof (IPS_LD_INFO);
3833                                 scb->data_busaddr = ha->logical_drive_info_dma_addr;
3834                                 scb->flags = 0;
3835                                 scb->cmd.logical_info.buffer_addr = scb->data_busaddr;
3836                                 ret = IPS_SUCCESS;
3837                         }
3838
3839                         break;
3840
3841                 case REQUEST_SENSE:
3842                         ips_reqsen(ha, scb);
3843                         scb->scsi_cmd->result = DID_OK << 16;
3844                         break;
3845
3846                 case READ_6:
3847                 case WRITE_6:
3848                         if (!scb->sg_len) {
3849                                 scb->cmd.basic_io.op_code =
3850                                     (scb->scsi_cmd->cmnd[0] ==
3851                                      READ_6) ? IPS_CMD_READ : IPS_CMD_WRITE;
3852                                 scb->cmd.basic_io.enhanced_sg = 0;
3853                                 scb->cmd.basic_io.sg_addr =
3854                                     cpu_to_le32(scb->data_busaddr);
3855                         } else {
3856                                 scb->cmd.basic_io.op_code =
3857                                     (scb->scsi_cmd->cmnd[0] ==
3858                                      READ_6) ? IPS_CMD_READ_SG :
3859                                     IPS_CMD_WRITE_SG;
3860                                 scb->cmd.basic_io.enhanced_sg =
3861                                     IPS_USE_ENH_SGLIST(ha) ? 0xFF : 0;
3862                                 scb->cmd.basic_io.sg_addr =
3863                                     cpu_to_le32(scb->sg_busaddr);
3864                         }
3865
3866                         scb->cmd.basic_io.segment_4G = 0;
3867                         scb->cmd.basic_io.command_id = IPS_COMMAND_ID(ha, scb);
3868                         scb->cmd.basic_io.log_drv = scb->target_id;
3869                         scb->cmd.basic_io.sg_count = scb->sg_len;
3870
3871                         if (scb->cmd.basic_io.lba)
3872                                 scb->cmd.basic_io.lba =
3873                                     cpu_to_le32(le32_to_cpu
3874                                                 (scb->cmd.basic_io.lba) +
3875                                                 le16_to_cpu(scb->cmd.basic_io.
3876                                                             sector_count));
3877                         else
3878                                 scb->cmd.basic_io.lba =
3879                                     (((scb->scsi_cmd->
3880                                        cmnd[1] & 0x1f) << 16) | (scb->scsi_cmd->
3881                                                                  cmnd[2] << 8) |
3882                                      (scb->scsi_cmd->cmnd[3]));
3883
3884                         scb->cmd.basic_io.sector_count =
3885                             cpu_to_le16(scb->data_len / IPS_BLKSIZE);
3886
3887                         if (le16_to_cpu(scb->cmd.basic_io.sector_count) == 0)
3888                                 scb->cmd.basic_io.sector_count =
3889                                     cpu_to_le16(256);
3890
3891                         ret = IPS_SUCCESS;
3892                         break;
3893
3894                 case READ_10:
3895                 case WRITE_10:
3896                         if (!scb->sg_len) {
3897                                 scb->cmd.basic_io.op_code =
3898                                     (scb->scsi_cmd->cmnd[0] ==
3899                                      READ_10) ? IPS_CMD_READ : IPS_CMD_WRITE;
3900                                 scb->cmd.basic_io.enhanced_sg = 0;
3901                                 scb->cmd.basic_io.sg_addr =
3902                                     cpu_to_le32(scb->data_busaddr);
3903                         } else {
3904                                 scb->cmd.basic_io.op_code =
3905                                     (scb->scsi_cmd->cmnd[0] ==
3906                                      READ_10) ? IPS_CMD_READ_SG :
3907                                     IPS_CMD_WRITE_SG;
3908                                 scb->cmd.basic_io.enhanced_sg =
3909                                     IPS_USE_ENH_SGLIST(ha) ? 0xFF : 0;
3910                                 scb->cmd.basic_io.sg_addr =
3911                                     cpu_to_le32(scb->sg_busaddr);
3912                         }
3913
3914                         scb->cmd.basic_io.segment_4G = 0;
3915                         scb->cmd.basic_io.command_id = IPS_COMMAND_ID(ha, scb);
3916                         scb->cmd.basic_io.log_drv = scb->target_id;
3917                         scb->cmd.basic_io.sg_count = scb->sg_len;
3918
3919                         if (scb->cmd.basic_io.lba)
3920                                 scb->cmd.basic_io.lba =
3921                                     cpu_to_le32(le32_to_cpu
3922                                                 (scb->cmd.basic_io.lba) +
3923                                                 le16_to_cpu(scb->cmd.basic_io.
3924                                                             sector_count));
3925                         else
3926                                 scb->cmd.basic_io.lba =
3927                                     ((scb->scsi_cmd->cmnd[2] << 24) | (scb->
3928                                                                        scsi_cmd->
3929                                                                        cmnd[3]
3930                                                                        << 16) |
3931                                      (scb->scsi_cmd->cmnd[4] << 8) | scb->
3932                                      scsi_cmd->cmnd[5]);
3933
3934                         scb->cmd.basic_io.sector_count =
3935                             cpu_to_le16(scb->data_len / IPS_BLKSIZE);
3936
3937                         if (cpu_to_le16(scb->cmd.basic_io.sector_count) == 0) {
3938                                 /*
3939                                  * This is a null condition
3940                                  * we don't have to do anything
3941                                  * so just return
3942                                  */
3943                                 scb->scsi_cmd->result = DID_OK << 16;
3944                         } else
3945                                 ret = IPS_SUCCESS;
3946
3947                         break;
3948
3949                 case RESERVE:
3950                 case RELEASE:
3951                         scb->scsi_cmd->result = DID_OK << 16;
3952                         break;
3953
3954                 case MODE_SENSE:
3955                         scb->cmd.basic_io.op_code = IPS_CMD_ENQUIRY;
3956                         scb->cmd.basic_io.command_id = IPS_COMMAND_ID(ha, scb);
3957                         scb->cmd.basic_io.segment_4G = 0;
3958                         scb->cmd.basic_io.enhanced_sg = 0;
3959                         scb->data_len = sizeof (*ha->enq);
3960                         scb->cmd.basic_io.sg_addr = ha->enq_busaddr;
3961                         ret = IPS_SUCCESS;
3962                         break;
3963
3964                 case READ_CAPACITY:
3965                         scb->cmd.logical_info.op_code = IPS_CMD_GET_LD_INFO;
3966                         scb->cmd.logical_info.command_id = IPS_COMMAND_ID(ha, scb);
3967                         scb->cmd.logical_info.reserved = 0;
3968                         scb->cmd.logical_info.reserved2 = 0;
3969                         scb->cmd.logical_info.reserved3 = 0;
3970                         scb->data_len = sizeof (IPS_LD_INFO);
3971                         scb->data_busaddr = ha->logical_drive_info_dma_addr;
3972                         scb->flags = 0;
3973                         scb->cmd.logical_info.buffer_addr = scb->data_busaddr;
3974                         ret = IPS_SUCCESS;
3975                         break;
3976
3977                 case SEND_DIAGNOSTIC:
3978                 case REASSIGN_BLOCKS:
3979                 case FORMAT_UNIT:
3980                 case SEEK_10:
3981                 case VERIFY:
3982                 case READ_DEFECT_DATA:
3983                 case READ_BUFFER:
3984                 case WRITE_BUFFER:
3985                         scb->scsi_cmd->result = DID_OK << 16;
3986                         break;
3987
3988                 default:
3989                         /* Set the Return Info to appear like the Command was */
3990                         /* attempted, a Check Condition occurred, and Sense   */
3991                         /* Data indicating an Invalid CDB OpCode is returned. */
3992                         sp = (char *) scb->scsi_cmd->sense_buffer;
3993                         memset(sp, 0, sizeof (scb->scsi_cmd->sense_buffer));
3994
3995                         sp[0] = 0x70;   /* Error Code               */
3996                         sp[2] = ILLEGAL_REQUEST;        /* Sense Key 5 Illegal Req. */
3997                         sp[7] = 0x0A;   /* Additional Sense Length  */
3998                         sp[12] = 0x20;  /* ASC = Invalid OpCode     */
3999                         sp[13] = 0x00;  /* ASCQ                     */
4000
4001                         device_error = 2;       /* Indicate Check Condition */
4002                         scb->scsi_cmd->result = device_error | (DID_OK << 16);
4003                         break;
4004                 }               /* end switch */
4005         }
4006         /* end if */
4007         if (ret == IPS_SUCCESS_IMM)
4008                 return (ret);
4009
4010         /* setup DCDB */
4011         if (scb->bus > 0) {
4012
4013                 /* If we already know the Device is Not there, no need to attempt a Command   */
4014                 /* This also protects an NT FailOver Controller from getting CDB's sent to it */
4015                 if (ha->conf->dev[scb->bus - 1][scb->target_id].ucState == 0) {
4016                         scb->scsi_cmd->result = DID_NO_CONNECT << 16;
4017                         return (IPS_SUCCESS_IMM);
4018                 }
4019
4020                 ha->dcdb_active[scb->bus - 1] |= (1 << scb->target_id);
4021                 scb->cmd.dcdb.command_id = IPS_COMMAND_ID(ha, scb);
4022                 scb->cmd.dcdb.dcdb_address = cpu_to_le32(scb->scb_busaddr +
4023                                                          (unsigned long) &scb->
4024                                                          dcdb -
4025                                                          (unsigned long) scb);
4026                 scb->cmd.dcdb.reserved = 0;
4027                 scb->cmd.dcdb.reserved2 = 0;
4028                 scb->cmd.dcdb.reserved3 = 0;
4029                 scb->cmd.dcdb.segment_4G = 0;
4030                 scb->cmd.dcdb.enhanced_sg = 0;
4031
4032                 TimeOut = scb->scsi_cmd->timeout_per_command;
4033
4034                 if (ha->subsys->param[4] & 0x00100000) {        /* If NEW Tape DCDB is Supported */
4035                         if (!scb->sg_len) {
4036                                 scb->cmd.dcdb.op_code = IPS_CMD_EXTENDED_DCDB;
4037                         } else {
4038                                 scb->cmd.dcdb.op_code =
4039                                     IPS_CMD_EXTENDED_DCDB_SG;
4040                                 scb->cmd.dcdb.enhanced_sg =
4041                                     IPS_USE_ENH_SGLIST(ha) ? 0xFF : 0;
4042                         }
4043
4044                         tapeDCDB = (IPS_DCDB_TABLE_TAPE *) & scb->dcdb; /* Use Same Data Area as Old DCDB Struct */
4045                         tapeDCDB->device_address =
4046                             ((scb->bus - 1) << 4) | scb->target_id;
4047                         tapeDCDB->cmd_attribute |= IPS_DISCONNECT_ALLOWED;
4048                         tapeDCDB->cmd_attribute &= ~IPS_TRANSFER64K;    /* Always Turn OFF 64K Size Flag */
4049
4050                         if (TimeOut) {
4051                                 if (TimeOut < (10 * HZ))
4052                                         tapeDCDB->cmd_attribute |= IPS_TIMEOUT10;       /* TimeOut is 10 Seconds */
4053                                 else if (TimeOut < (60 * HZ))
4054                                         tapeDCDB->cmd_attribute |= IPS_TIMEOUT60;       /* TimeOut is 60 Seconds */
4055                                 else if (TimeOut < (1200 * HZ))
4056                                         tapeDCDB->cmd_attribute |= IPS_TIMEOUT20M;      /* TimeOut is 20 Minutes */
4057                         }
4058
4059                         tapeDCDB->cdb_length = scb->scsi_cmd->cmd_len;
4060                         tapeDCDB->reserved_for_LUN = 0;
4061                         tapeDCDB->transfer_length = scb->data_len;
4062                         if (scb->cmd.dcdb.op_code == IPS_CMD_EXTENDED_DCDB_SG)
4063                                 tapeDCDB->buffer_pointer =
4064                                     cpu_to_le32(scb->sg_busaddr);
4065                         else
4066                                 tapeDCDB->buffer_pointer =
4067                                     cpu_to_le32(scb->data_busaddr);
4068                         tapeDCDB->sg_count = scb->sg_len;
4069                         tapeDCDB->sense_length = sizeof (tapeDCDB->sense_info);
4070                         tapeDCDB->scsi_status = 0;
4071                         tapeDCDB->reserved = 0;
4072                         memcpy(tapeDCDB->scsi_cdb, scb->scsi_cmd->cmnd,
4073                                scb->scsi_cmd->cmd_len);
4074                 } else {
4075                         if (!scb->sg_len) {
4076                                 scb->cmd.dcdb.op_code = IPS_CMD_DCDB;
4077                         } else {
4078                                 scb->cmd.dcdb.op_code = IPS_CMD_DCDB_SG;
4079                                 scb->cmd.dcdb.enhanced_sg =
4080                                     IPS_USE_ENH_SGLIST(ha) ? 0xFF : 0;
4081                         }
4082
4083                         scb->dcdb.device_address =
4084                             ((scb->bus - 1) << 4) | scb->target_id;
4085                         scb->dcdb.cmd_attribute |= IPS_DISCONNECT_ALLOWED;
4086
4087                         if (TimeOut) {
4088                                 if (TimeOut < (10 * HZ))
4089                                         scb->dcdb.cmd_attribute |= IPS_TIMEOUT10;       /* TimeOut is 10 Seconds */
4090                                 else if (TimeOut < (60 * HZ))
4091                                         scb->dcdb.cmd_attribute |= IPS_TIMEOUT60;       /* TimeOut is 60 Seconds */
4092                                 else if (TimeOut < (1200 * HZ))
4093                                         scb->dcdb.cmd_attribute |= IPS_TIMEOUT20M;      /* TimeOut is 20 Minutes */
4094                         }
4095
4096                         scb->dcdb.transfer_length = scb->data_len;
4097                         if (scb->dcdb.cmd_attribute & IPS_TRANSFER64K)
4098                                 scb->dcdb.transfer_length = 0;
4099                         if (scb->cmd.dcdb.op_code == IPS_CMD_DCDB_SG)
4100                                 scb->dcdb.buffer_pointer =
4101                                     cpu_to_le32(scb->sg_busaddr);
4102                         else
4103                                 scb->dcdb.buffer_pointer =
4104                                     cpu_to_le32(scb->data_busaddr);
4105                         scb->dcdb.cdb_length = scb->scsi_cmd->cmd_len;
4106                         scb->dcdb.sense_length = sizeof (scb->dcdb.sense_info);
4107                         scb->dcdb.sg_count = scb->sg_len;
4108                         scb->dcdb.reserved = 0;
4109                         memcpy(scb->dcdb.scsi_cdb, scb->scsi_cmd->cmnd,
4110                                scb->scsi_cmd->cmd_len);
4111                         scb->dcdb.scsi_status = 0;
4112                         scb->dcdb.reserved2[0] = 0;
4113                         scb->dcdb.reserved2[1] = 0;
4114                         scb->dcdb.reserved2[2] = 0;
4115                 }
4116         }
4117
4118         return ((*ha->func.issue) (ha, scb));
4119 }
4120
4121 /****************************************************************************/
4122 /*                                                                          */
4123 /* Routine Name: ips_chk_status                                             */
4124 /*                                                                          */
4125 /* Routine Description:                                                     */
4126 /*                                                                          */
4127 /*   Check the status of commands to logical drives                         */
4128 /*   Assumed to be called with the HA lock                                  */
4129 /****************************************************************************/
4130 static void
4131 ips_chkstatus(ips_ha_t * ha, IPS_STATUS * pstatus)
4132 {
4133         ips_scb_t *scb;
4134         ips_stat_t *sp;
4135         uint8_t basic_status;
4136         uint8_t ext_status;
4137         int errcode;
4138
4139         METHOD_TRACE("ips_chkstatus", 1);
4140
4141         scb = &ha->scbs[pstatus->fields.command_id];
4142         scb->basic_status = basic_status =
4143             pstatus->fields.basic_status & IPS_BASIC_STATUS_MASK;
4144         scb->extended_status = ext_status = pstatus->fields.extended_status;
4145
4146         sp = &ha->sp;
4147         sp->residue_len = 0;
4148         sp->scb_addr = (void *) scb;
4149
4150         /* Remove the item from the active queue */
4151         ips_removeq_scb(&ha->scb_activelist, scb);
4152
4153         if (!scb->scsi_cmd)
4154                 /* internal commands are handled in do_ipsintr */
4155                 return;
4156
4157         DEBUG_VAR(2, "(%s%d) ips_chkstatus: cmd 0x%X id %d (%d %d %d)",
4158                   ips_name,
4159                   ha->host_num,
4160                   scb->cdb[0],
4161                   scb->cmd.basic_io.command_id,
4162                   scb->bus, scb->target_id, scb->lun);
4163
4164         if ((scb->scsi_cmd) && (ips_is_passthru(scb->scsi_cmd)))
4165                 /* passthru - just returns the raw result */
4166                 return;
4167
4168         errcode = DID_OK;
4169
4170         if (((basic_status & IPS_GSC_STATUS_MASK) == IPS_CMD_SUCCESS) ||
4171             ((basic_status & IPS_GSC_STATUS_MASK) == IPS_CMD_RECOVERED_ERROR)) {
4172
4173                 if (scb->bus == 0) {
4174                         if ((basic_status & IPS_GSC_STATUS_MASK) ==
4175                             IPS_CMD_RECOVERED_ERROR) {
4176                                 DEBUG_VAR(1,
4177                                           "(%s%d) Recovered Logical Drive Error OpCode: %x, BSB: %x, ESB: %x",
4178                                           ips_name, ha->host_num,
4179                                           scb->cmd.basic_io.op_code,
4180                                           basic_status, ext_status);
4181                         }
4182
4183                         switch (scb->scsi_cmd->cmnd[0]) {
4184                         case ALLOW_MEDIUM_REMOVAL:
4185                         case REZERO_UNIT:
4186                         case ERASE:
4187                         case WRITE_FILEMARKS:
4188                         case SPACE:
4189                                 errcode = DID_ERROR;
4190                                 break;
4191
4192                         case START_STOP:
4193                                 break;
4194
4195                         case TEST_UNIT_READY:
4196                                 if (!ips_online(ha, scb)) {
4197                                         errcode = DID_TIME_OUT;
4198                                 }
4199                                 break;
4200
4201                         case INQUIRY:
4202                                 if (ips_online(ha, scb)) {
4203                                         ips_inquiry(ha, scb);
4204                                 } else {
4205                                         errcode = DID_TIME_OUT;
4206                                 }
4207                                 break;
4208
4209                         case REQUEST_SENSE:
4210                                 ips_reqsen(ha, scb);
4211                                 break;
4212
4213                         case READ_6:
4214                         case WRITE_6:
4215                         case READ_10:
4216                         case WRITE_10:
4217                         case RESERVE:
4218                         case RELEASE:
4219                                 break;
4220
4221                         case MODE_SENSE:
4222                                 if (!ips_online(ha, scb)
4223                                     || !ips_msense(ha, scb)) {
4224                                         errcode = DID_ERROR;
4225                                 }
4226                                 break;
4227
4228                         case READ_CAPACITY:
4229                                 if (ips_online(ha, scb))
4230                                         ips_rdcap(ha, scb);
4231                                 else {
4232                                         errcode = DID_TIME_OUT;
4233                                 }
4234                                 break;
4235
4236                         case SEND_DIAGNOSTIC:
4237                         case REASSIGN_BLOCKS:
4238                                 break;
4239
4240                         case FORMAT_UNIT:
4241                                 errcode = DID_ERROR;
4242                                 break;
4243
4244                         case SEEK_10:
4245                         case VERIFY:
4246                         case READ_DEFECT_DATA:
4247                         case READ_BUFFER:
4248                         case WRITE_BUFFER:
4249                                 break;
4250
4251                         default:
4252                                 errcode = DID_ERROR;
4253                         }       /* end switch */
4254
4255                         scb->scsi_cmd->result = errcode << 16;
4256                 } else {        /* bus == 0 */
4257                         /* restrict access to physical drives */
4258                         if ((scb->scsi_cmd->cmnd[0] == INQUIRY) &&
4259                             ((((char *) scb->scsi_cmd->buffer)[0] & 0x1f) ==
4260                              TYPE_DISK)) {
4261
4262                                 scb->scsi_cmd->result = DID_TIME_OUT << 16;
4263                         }
4264                 }               /* else */
4265         } else {                /* recovered error / success */
4266                 if (scb->bus == 0) {
4267                         DEBUG_VAR(1,
4268                                   "(%s%d) Unrecovered Logical Drive Error OpCode: %x, BSB: %x, ESB: %x",
4269                                   ips_name, ha->host_num,
4270                                   scb->cmd.basic_io.op_code, basic_status,
4271                                   ext_status);
4272                 }
4273
4274                 ips_map_status(ha, scb, sp);
4275         }                       /* else */
4276 }
4277
4278 /****************************************************************************/
4279 /*                                                                          */
4280 /* Routine Name: ips_online                                                 */
4281 /*                                                                          */
4282 /* Routine Description:                                                     */
4283 /*                                                                          */
4284 /*   Determine if a logical drive is online                                 */
4285 /*                                                                          */
4286 /****************************************************************************/
4287 static int
4288 ips_online(ips_ha_t * ha, ips_scb_t * scb)
4289 {
4290         METHOD_TRACE("ips_online", 1);
4291
4292         if (scb->target_id >= IPS_MAX_LD)
4293                 return (0);
4294
4295         if ((scb->basic_status & IPS_GSC_STATUS_MASK) > 1) {
4296                 memset(ha->logical_drive_info, 0, sizeof (IPS_LD_INFO));
4297                 return (0);
4298         }
4299
4300         if (ha->logical_drive_info->drive_info[scb->target_id].state !=
4301             IPS_LD_OFFLINE
4302             && ha->logical_drive_info->drive_info[scb->target_id].state !=
4303             IPS_LD_FREE
4304             && ha->logical_drive_info->drive_info[scb->target_id].state !=
4305             IPS_LD_CRS
4306             && ha->logical_drive_info->drive_info[scb->target_id].state !=
4307             IPS_LD_SYS)
4308                 return (1);
4309         else
4310                 return (0);
4311 }
4312
4313 /****************************************************************************/
4314 /*                                                                          */
4315 /* Routine Name: ips_inquiry                                                */
4316 /*                                                                          */
4317 /* Routine Description:                                                     */
4318 /*                                                                          */
4319 /*   Simulate an inquiry command to a logical drive                         */
4320 /*                                                                          */
4321 /****************************************************************************/
4322 static int
4323 ips_inquiry(ips_ha_t * ha, ips_scb_t * scb)
4324 {
4325         IPS_SCSI_INQ_DATA inquiry;
4326
4327         METHOD_TRACE("ips_inquiry", 1);
4328
4329         memset(&inquiry, 0, sizeof (IPS_SCSI_INQ_DATA));
4330
4331         inquiry.DeviceType = IPS_SCSI_INQ_TYPE_DASD;
4332         inquiry.DeviceTypeQualifier = IPS_SCSI_INQ_LU_CONNECTED;
4333         inquiry.Version = IPS_SCSI_INQ_REV2;
4334         inquiry.ResponseDataFormat = IPS_SCSI_INQ_RD_REV2;
4335         inquiry.AdditionalLength = 31;
4336         inquiry.Flags[0] = IPS_SCSI_INQ_Address16;
4337         inquiry.Flags[1] =
4338             IPS_SCSI_INQ_WBus16 | IPS_SCSI_INQ_Sync | IPS_SCSI_INQ_CmdQue;
4339         strncpy(inquiry.VendorId, "IBM     ", 8);
4340         strncpy(inquiry.ProductId, "SERVERAID       ", 16);
4341         strncpy(inquiry.ProductRevisionLevel, "1.00", 4);
4342
4343         ips_scmd_buf_write(scb->scsi_cmd, &inquiry, sizeof (inquiry));
4344
4345         return (1);
4346 }
4347
4348 /****************************************************************************/
4349 /*                                                                          */
4350 /* Routine Name: ips_rdcap                                                  */
4351 /*                                                                          */
4352 /* Routine Description:                                                     */
4353 /*                                                                          */
4354 /*   Simulate a read capacity command to a logical drive                    */
4355 /*                                                                          */
4356 /****************************************************************************/
4357 static int
4358 ips_rdcap(ips_ha_t * ha, ips_scb_t * scb)
4359 {
4360         IPS_SCSI_CAPACITY cap;
4361
4362         METHOD_TRACE("ips_rdcap", 1);
4363
4364         if (scb->scsi_cmd->bufflen < 8)
4365                 return (0);
4366
4367         cap.lba =
4368             cpu_to_be32(le32_to_cpu
4369                         (ha->logical_drive_info->
4370                          drive_info[scb->target_id].sector_count) - 1);
4371         cap.len = cpu_to_be32((uint32_t) IPS_BLKSIZE);
4372
4373         ips_scmd_buf_write(scb->scsi_cmd, &cap, sizeof (cap));
4374
4375         return (1);
4376 }
4377
4378 /****************************************************************************/
4379 /*                                                                          */
4380 /* Routine Name: ips_msense                                                 */
4381 /*                                                                          */
4382 /* Routine Description:                                                     */
4383 /*                                                                          */
4384 /*   Simulate a mode sense command to a logical drive                       */
4385 /*                                                                          */
4386 /****************************************************************************/
4387 static int
4388 ips_msense(ips_ha_t * ha, ips_scb_t * scb)
4389 {
4390         uint16_t heads;
4391         uint16_t sectors;
4392         uint32_t cylinders;
4393         IPS_SCSI_MODE_PAGE_DATA mdata;
4394
4395         METHOD_TRACE("ips_msense", 1);
4396
4397         if (le32_to_cpu(ha->enq->ulDriveSize[scb->target_id]) > 0x400000 &&
4398             (ha->enq->ucMiscFlag & 0x8) == 0) {
4399                 heads = IPS_NORM_HEADS;
4400                 sectors = IPS_NORM_SECTORS;
4401         } else {
4402                 heads = IPS_COMP_HEADS;
4403                 sectors = IPS_COMP_SECTORS;
4404         }
4405
4406         cylinders =
4407             (le32_to_cpu(ha->enq->ulDriveSize[scb->target_id]) -
4408              1) / (heads * sectors);
4409
4410         memset(&mdata, 0, sizeof (IPS_SCSI_MODE_PAGE_DATA));
4411
4412         mdata.hdr.BlockDescLength = 8;
4413
4414         switch (scb->scsi_cmd->cmnd[2] & 0x3f) {
4415         case 0x03:              /* page 3 */
4416                 mdata.pdata.pg3.PageCode = 3;
4417                 mdata.pdata.pg3.PageLength = sizeof (IPS_SCSI_MODE_PAGE3);
4418                 mdata.hdr.DataLength =
4419                     3 + mdata.hdr.BlockDescLength + mdata.pdata.pg3.PageLength;
4420                 mdata.pdata.pg3.TracksPerZone = 0;
4421                 mdata.pdata.pg3.AltSectorsPerZone = 0;
4422                 mdata.pdata.pg3.AltTracksPerZone = 0;
4423                 mdata.pdata.pg3.AltTracksPerVolume = 0;
4424                 mdata.pdata.pg3.SectorsPerTrack = cpu_to_be16(sectors);
4425                 mdata.pdata.pg3.BytesPerSector = cpu_to_be16(IPS_BLKSIZE);
4426                 mdata.pdata.pg3.Interleave = cpu_to_be16(1);
4427                 mdata.pdata.pg3.TrackSkew = 0;
4428                 mdata.pdata.pg3.CylinderSkew = 0;
4429                 mdata.pdata.pg3.flags = IPS_SCSI_MP3_SoftSector;
4430                 break;
4431
4432         case 0x4:
4433                 mdata.pdata.pg4.PageCode = 4;
4434                 mdata.pdata.pg4.PageLength = sizeof (IPS_SCSI_MODE_PAGE4);
4435                 mdata.hdr.DataLength =
4436                     3 + mdata.hdr.BlockDescLength + mdata.pdata.pg4.PageLength;
4437                 mdata.pdata.pg4.CylindersHigh =
4438                     cpu_to_be16((cylinders >> 8) & 0xFFFF);
4439                 mdata.pdata.pg4.CylindersLow = (cylinders & 0xFF);
4440                 mdata.pdata.pg4.Heads = heads;
4441                 mdata.pdata.pg4.WritePrecompHigh = 0;
4442                 mdata.pdata.pg4.WritePrecompLow = 0;
4443                 mdata.pdata.pg4.ReducedWriteCurrentHigh = 0;
4444                 mdata.pdata.pg4.ReducedWriteCurrentLow = 0;
4445                 mdata.pdata.pg4.StepRate = cpu_to_be16(1);
4446                 mdata.pdata.pg4.LandingZoneHigh = 0;
4447                 mdata.pdata.pg4.LandingZoneLow = 0;
4448                 mdata.pdata.pg4.flags = 0;
4449                 mdata.pdata.pg4.RotationalOffset = 0;
4450                 mdata.pdata.pg4.MediumRotationRate = 0;
4451                 break;
4452         case 0x8:
4453                 mdata.pdata.pg8.PageCode = 8;
4454                 mdata.pdata.pg8.PageLength = sizeof (IPS_SCSI_MODE_PAGE8);
4455                 mdata.hdr.DataLength =
4456                     3 + mdata.hdr.BlockDescLength + mdata.pdata.pg8.PageLength;
4457                 /* everything else is left set to 0 */
4458                 break;
4459
4460         default:
4461                 return (0);
4462         }                       /* end switch */
4463
4464         ips_scmd_buf_write(scb->scsi_cmd, &mdata, sizeof (mdata));
4465
4466         return (1);
4467 }
4468
4469 /****************************************************************************/
4470 /*                                                                          */
4471 /* Routine Name: ips_reqsen                                                 */
4472 /*                                                                          */
4473 /* Routine Description:                                                     */
4474 /*                                                                          */
4475 /*   Simulate a request sense command to a logical drive                    */
4476 /*                                                                          */
4477 /****************************************************************************/
4478 static int
4479 ips_reqsen(ips_ha_t * ha, ips_scb_t * scb)
4480 {
4481         IPS_SCSI_REQSEN reqsen;
4482
4483         METHOD_TRACE("ips_reqsen", 1);
4484
4485         memset(&reqsen, 0, sizeof (IPS_SCSI_REQSEN));
4486
4487         reqsen.ResponseCode =
4488             IPS_SCSI_REQSEN_VALID | IPS_SCSI_REQSEN_CURRENT_ERR;
4489         reqsen.AdditionalLength = 10;
4490         reqsen.AdditionalSenseCode = IPS_SCSI_REQSEN_NO_SENSE;
4491         reqsen.AdditionalSenseCodeQual = IPS_SCSI_REQSEN_NO_SENSE;
4492
4493         ips_scmd_buf_write(scb->scsi_cmd, &reqsen, sizeof (reqsen));
4494
4495         return (1);
4496 }
4497
4498 /****************************************************************************/
4499 /*                                                                          */
4500 /* Routine Name: ips_free                                                   */
4501 /*                                                                          */
4502 /* Routine Description:                                                     */
4503 /*                                                                          */
4504 /*   Free any allocated space for this controller                           */
4505 /*                                                                          */
4506 /****************************************************************************/
4507 static void
4508 ips_free(ips_ha_t * ha)
4509 {
4510
4511         METHOD_TRACE("ips_free", 1);
4512
4513         if (ha) {
4514                 if (ha->enq) {
4515                         pci_free_consistent(ha->pcidev, sizeof(IPS_ENQ),
4516                                             ha->enq, ha->enq_busaddr);
4517                         ha->enq = NULL;
4518                 }
4519
4520                 kfree(ha->conf);
4521                 ha->conf = NULL;
4522
4523                 if (ha->adapt) {
4524                         pci_free_consistent(ha->pcidev,
4525                                             sizeof (IPS_ADAPTER) +
4526                                             sizeof (IPS_IO_CMD), ha->adapt,
4527                                             ha->adapt->hw_status_start);
4528                         ha->adapt = NULL;
4529                 }
4530
4531                 if (ha->logical_drive_info) {
4532                         pci_free_consistent(ha->pcidev,
4533                                             sizeof (IPS_LD_INFO),
4534                                             ha->logical_drive_info,
4535                                             ha->logical_drive_info_dma_addr);
4536                         ha->logical_drive_info = NULL;
4537                 }
4538
4539                 kfree(ha->nvram);
4540                 ha->nvram = NULL;
4541
4542                 kfree(ha->subsys);
4543                 ha->subsys = NULL;
4544
4545                 if (ha->ioctl_data) {
4546                         pci_free_consistent(ha->pcidev, ha->ioctl_len,
4547                                             ha->ioctl_data, ha->ioctl_busaddr);
4548                         ha->ioctl_data = NULL;
4549                         ha->ioctl_datasize = 0;
4550                         ha->ioctl_len = 0;
4551                 }
4552                 ips_deallocatescbs(ha, ha->max_cmds);
4553
4554                 /* free memory mapped (if applicable) */
4555                 if (ha->mem_ptr) {
4556                         iounmap(ha->ioremap_ptr);
4557                         ha->ioremap_ptr = NULL;
4558                         ha->mem_ptr = NULL;
4559                 }
4560
4561                 if (ha->mem_addr)
4562                         release_mem_region(ha->mem_addr, ha->mem_len);
4563                 ha->mem_addr = 0;
4564
4565         }
4566 }
4567
4568 /****************************************************************************/
4569 /*                                                                          */
4570 /* Routine Name: ips_deallocatescbs                                         */
4571 /*                                                                          */
4572 /* Routine Description:                                                     */
4573 /*                                                                          */
4574 /*   Free the command blocks                                                */
4575 /*                                                                          */
4576 /****************************************************************************/
4577 static int
4578 ips_deallocatescbs(ips_ha_t * ha, int cmds)
4579 {
4580         if (ha->scbs) {
4581                 pci_free_consistent(ha->pcidev,
4582                                     IPS_SGLIST_SIZE(ha) * IPS_MAX_SG * cmds,
4583                                     ha->scbs->sg_list.list,
4584                                     ha->scbs->sg_busaddr);
4585                 pci_free_consistent(ha->pcidev, sizeof (ips_scb_t) * cmds,
4586                                     ha->scbs, ha->scbs->scb_busaddr);
4587                 ha->scbs = NULL;
4588         }                       /* end if */
4589         return 1;
4590 }
4591
4592 /****************************************************************************/
4593 /*                                                                          */
4594 /* Routine Name: ips_allocatescbs                                           */
4595 /*                                                                          */
4596 /* Routine Description:                                                     */
4597 /*                                                                          */
4598 /*   Allocate the command blocks                                            */
4599 /*                                                                          */
4600 /****************************************************************************/
4601 static int
4602 ips_allocatescbs(ips_ha_t * ha)
4603 {
4604         ips_scb_t *scb_p;
4605         IPS_SG_LIST ips_sg;
4606         int i;
4607         dma_addr_t command_dma, sg_dma;
4608
4609         METHOD_TRACE("ips_allocatescbs", 1);
4610
4611         /* Allocate memory for the SCBs */
4612         ha->scbs =
4613             pci_alloc_consistent(ha->pcidev, ha->max_cmds * sizeof (ips_scb_t),
4614                                  &command_dma);
4615         if (ha->scbs == NULL)
4616                 return 0;
4617         ips_sg.list =
4618             pci_alloc_consistent(ha->pcidev,
4619                                  IPS_SGLIST_SIZE(ha) * IPS_MAX_SG *
4620                                  ha->max_cmds, &sg_dma);
4621         if (ips_sg.list == NULL) {
4622                 pci_free_consistent(ha->pcidev,
4623                                     ha->max_cmds * sizeof (ips_scb_t), ha->scbs,
4624                                     command_dma);
4625                 return 0;
4626         }
4627
4628         memset(ha->scbs, 0, ha->max_cmds * sizeof (ips_scb_t));
4629
4630         for (i = 0; i < ha->max_cmds; i++) {
4631                 scb_p = &ha->scbs[i];
4632                 scb_p->scb_busaddr = command_dma + sizeof (ips_scb_t) * i;
4633                 /* set up S/G list */
4634                 if (IPS_USE_ENH_SGLIST(ha)) {
4635                         scb_p->sg_list.enh_list =
4636                             ips_sg.enh_list + i * IPS_MAX_SG;
4637                         scb_p->sg_busaddr =
4638                             sg_dma + IPS_SGLIST_SIZE(ha) * IPS_MAX_SG * i;
4639                 } else {
4640                         scb_p->sg_list.std_list =
4641                             ips_sg.std_list + i * IPS_MAX_SG;
4642                         scb_p->sg_busaddr =
4643                             sg_dma + IPS_SGLIST_SIZE(ha) * IPS_MAX_SG * i;
4644                 }
4645
4646                 /* add to the free list */
4647                 if (i < ha->max_cmds - 1) {
4648                         scb_p->q_next = ha->scb_freelist;
4649                         ha->scb_freelist = scb_p;
4650                 }
4651         }
4652
4653         /* success */
4654         return (1);
4655 }
4656
4657 /****************************************************************************/
4658 /*                                                                          */
4659 /* Routine Name: ips_init_scb                                               */
4660 /*                                                                          */
4661 /* Routine Description:                                                     */
4662 /*                                                                          */
4663 /*   Initialize a CCB to default values                                     */
4664 /*                                                                          */
4665 /****************************************************************************/
4666 static void
4667 ips_init_scb(ips_ha_t * ha, ips_scb_t * scb)
4668 {
4669         IPS_SG_LIST sg_list;
4670         uint32_t cmd_busaddr, sg_busaddr;
4671         METHOD_TRACE("ips_init_scb", 1);
4672
4673         if (scb == NULL)
4674                 return;
4675
4676         sg_list.list = scb->sg_list.list;
4677         cmd_busaddr = scb->scb_busaddr;
4678         sg_busaddr = scb->sg_busaddr;
4679         /* zero fill */
4680         memset(scb, 0, sizeof (ips_scb_t));
4681         memset(ha->dummy, 0, sizeof (IPS_IO_CMD));
4682
4683         /* Initialize dummy command bucket */
4684         ha->dummy->op_code = 0xFF;
4685         ha->dummy->ccsar = cpu_to_le32(ha->adapt->hw_status_start
4686                                        + sizeof (IPS_ADAPTER));
4687         ha->dummy->command_id = IPS_MAX_CMDS;
4688
4689         /* set bus address of scb */
4690         scb->scb_busaddr = cmd_busaddr;
4691         scb->sg_busaddr = sg_busaddr;
4692         scb->sg_list.list = sg_list.list;
4693
4694         /* Neptune Fix */
4695         scb->cmd.basic_io.cccr = cpu_to_le32((uint32_t) IPS_BIT_ILE);
4696         scb->cmd.basic_io.ccsar = cpu_to_le32(ha->adapt->hw_status_start
4697                                               + sizeof (IPS_ADAPTER));
4698 }
4699
4700 /****************************************************************************/
4701 /*                                                                          */
4702 /* Routine Name: ips_get_scb                                                */
4703 /*                                                                          */
4704 /* Routine Description:                                                     */
4705 /*                                                                          */
4706 /*   Initialize a CCB to default values                                     */
4707 /*                                                                          */
4708 /* ASSUMED to be callled from within a lock                                 */
4709 /*                                                                          */
4710 /****************************************************************************/
4711 static ips_scb_t *
4712 ips_getscb(ips_ha_t * ha)
4713 {
4714         ips_scb_t *scb;
4715
4716         METHOD_TRACE("ips_getscb", 1);
4717
4718         if ((scb = ha->scb_freelist) == NULL) {
4719
4720                 return (NULL);
4721         }
4722
4723         ha->scb_freelist = scb->q_next;
4724         scb->flags = 0;
4725         scb->q_next = NULL;
4726
4727         ips_init_scb(ha, scb);
4728
4729         return (scb);
4730 }
4731
4732 /****************************************************************************/
4733 /*                                                                          */
4734 /* Routine Name: ips_free_scb                                               */
4735 /*                                                                          */
4736 /* Routine Description:                                                     */
4737 /*                                                                          */
4738 /*   Return an unused CCB back to the free list                             */
4739 /*                                                                          */
4740 /* ASSUMED to be called from within a lock                                  */
4741 /*                                                                          */
4742 /****************************************************************************/
4743 static void
4744 ips_freescb(ips_ha_t * ha, ips_scb_t * scb)
4745 {
4746
4747         METHOD_TRACE("ips_freescb", 1);
4748         if (scb->flags & IPS_SCB_MAP_SG)
4749                 pci_unmap_sg(ha->pcidev, scb->scsi_cmd->request_buffer,
4750                              scb->scsi_cmd->use_sg, IPS_DMA_DIR(scb));
4751         else if (scb->flags & IPS_SCB_MAP_SINGLE)
4752                 pci_unmap_single(ha->pcidev, scb->data_busaddr, scb->data_len,
4753                                  IPS_DMA_DIR(scb));
4754
4755         /* check to make sure this is not our "special" scb */
4756         if (IPS_COMMAND_ID(ha, scb) < (ha->max_cmds - 1)) {
4757                 scb->q_next = ha->scb_freelist;
4758                 ha->scb_freelist = scb;
4759         }
4760 }
4761
4762 /****************************************************************************/
4763 /*                                                                          */
4764 /* Routine Name: ips_isinit_copperhead                                      */
4765 /*                                                                          */
4766 /* Routine Description:                                                     */
4767 /*                                                                          */
4768 /*   Is controller initialized ?                                            */
4769 /*                                                                          */
4770 /****************************************************************************/
4771 static int
4772 ips_isinit_copperhead(ips_ha_t * ha)
4773 {
4774         uint8_t scpr;
4775         uint8_t isr;
4776
4777         METHOD_TRACE("ips_isinit_copperhead", 1);
4778
4779         isr = inb(ha->io_addr + IPS_REG_HISR);
4780         scpr = inb(ha->io_addr + IPS_REG_SCPR);
4781
4782         if (((isr & IPS_BIT_EI) == 0) && ((scpr & IPS_BIT_EBM) == 0))
4783                 return (0);
4784         else
4785                 return (1);
4786 }
4787
4788 /****************************************************************************/
4789 /*                                                                          */
4790 /* Routine Name: ips_isinit_copperhead_memio                                */
4791 /*                                                                          */
4792 /* Routine Description:                                                     */
4793 /*                                                                          */
4794 /*   Is controller initialized ?                                            */
4795 /*                                                                          */
4796 /****************************************************************************/
4797 static int
4798 ips_isinit_copperhead_memio(ips_ha_t * ha)
4799 {
4800         uint8_t isr = 0;
4801         uint8_t scpr;
4802
4803         METHOD_TRACE("ips_is_init_copperhead_memio", 1);
4804
4805         isr = readb(ha->mem_ptr + IPS_REG_HISR);
4806         scpr = readb(ha->mem_ptr + IPS_REG_SCPR);
4807
4808         if (((isr & IPS_BIT_EI) == 0) && ((scpr & IPS_BIT_EBM) == 0))
4809                 return (0);
4810         else
4811                 return (1);
4812 }
4813
4814 /****************************************************************************/
4815 /*                                                                          */
4816 /* Routine Name: ips_isinit_morpheus                                        */
4817 /*                                                                          */
4818 /* Routine Description:                                                     */
4819 /*                                                                          */
4820 /*   Is controller initialized ?                                            */
4821 /*                                                                          */
4822 /****************************************************************************/
4823 static int
4824 ips_isinit_morpheus(ips_ha_t * ha)
4825 {
4826         uint32_t post;
4827         uint32_t bits;
4828
4829         METHOD_TRACE("ips_is_init_morpheus", 1);
4830
4831         if (ips_isintr_morpheus(ha))
4832             ips_flush_and_reset(ha);
4833
4834         post = readl(ha->mem_ptr + IPS_REG_I960_MSG0);
4835         bits = readl(ha->mem_ptr + IPS_REG_I2O_HIR);
4836
4837         if (post == 0)
4838                 return (0);
4839         else if (bits & 0x3)
4840                 return (0);
4841         else
4842                 return (1);
4843 }
4844
4845 /****************************************************************************/
4846 /*                                                                          */
4847 /* Routine Name: ips_flush_and_reset                                        */
4848 /*                                                                          */
4849 /* Routine Description:                                                     */
4850 /*                                                                          */
4851 /*   Perform cleanup ( FLUSH and RESET ) when the adapter is in an unknown  */
4852 /*   state ( was trying to INIT and an interrupt was already pending ) ...  */
4853 /*                                                                          */
4854 /****************************************************************************/
4855 static void
4856 ips_flush_and_reset(ips_ha_t *ha)
4857 {
4858         ips_scb_t *scb;
4859         int  ret;
4860         int  time;
4861         int  done;
4862         dma_addr_t command_dma;
4863
4864         /* Create a usuable SCB */
4865         scb = pci_alloc_consistent(ha->pcidev, sizeof(ips_scb_t), &command_dma);
4866         if (scb) {
4867             memset(scb, 0, sizeof(ips_scb_t));
4868             ips_init_scb(ha, scb);
4869             scb->scb_busaddr = command_dma;
4870
4871             scb->timeout = ips_cmd_timeout;
4872             scb->cdb[0] = IPS_CMD_FLUSH;
4873
4874             scb->cmd.flush_cache.op_code = IPS_CMD_FLUSH;
4875             scb->cmd.flush_cache.command_id = IPS_MAX_CMDS;   /* Use an ID that would otherwise not exist */
4876             scb->cmd.flush_cache.state = IPS_NORM_STATE;
4877             scb->cmd.flush_cache.reserved = 0;
4878             scb->cmd.flush_cache.reserved2 = 0;
4879             scb->cmd.flush_cache.reserved3 = 0;
4880             scb->cmd.flush_cache.reserved4 = 0;
4881
4882             ret = ips_send_cmd(ha, scb);                      /* Send the Flush Command */
4883
4884             if (ret == IPS_SUCCESS) {
4885                 time = 60 * IPS_ONE_SEC;                      /* Max Wait time is 60 seconds */
4886                 done = 0;
4887
4888                 while ((time > 0) && (!done)) {
4889                    done = ips_poll_for_flush_complete(ha);
4890                    /* This may look evil, but it's only done during extremely rare start-up conditions ! */
4891                    udelay(1000);
4892                    time--;
4893                 }
4894         }
4895         }
4896
4897         /* Now RESET and INIT the adapter */
4898         (*ha->func.reset) (ha);
4899
4900         pci_free_consistent(ha->pcidev, sizeof(ips_scb_t), scb, command_dma);
4901         return;
4902 }
4903
4904 /****************************************************************************/
4905 /*                                                                          */
4906 /* Routine Name: ips_poll_for_flush_complete                                */
4907 /*                                                                          */
4908 /* Routine Description:                                                     */
4909 /*                                                                          */
4910 /*   Poll for the Flush Command issued by ips_flush_and_reset() to complete */
4911 /*   All other responses are just taken off the queue and ignored           */
4912 /*                                                                          */
4913 /****************************************************************************/
4914 static int
4915 ips_poll_for_flush_complete(ips_ha_t * ha)
4916 {
4917         IPS_STATUS cstatus;
4918
4919         while (TRUE) {
4920             cstatus.value = (*ha->func.statupd) (ha);
4921
4922             if (cstatus.value == 0xffffffff)      /* If No Interrupt to process */
4923                         break;
4924
4925             /* Success is when we see the Flush Command ID */
4926             if (cstatus.fields.command_id == IPS_MAX_CMDS )
4927                 return 1;
4928          }
4929
4930         return 0;
4931 }
4932
4933 /****************************************************************************/
4934 /*                                                                          */
4935 /* Routine Name: ips_enable_int_copperhead                                  */
4936 /*                                                                          */
4937 /* Routine Description:                                                     */
4938 /*   Turn on interrupts                                                     */
4939 /*                                                                          */
4940 /****************************************************************************/
4941 static void
4942 ips_enable_int_copperhead(ips_ha_t * ha)
4943 {
4944         METHOD_TRACE("ips_enable_int_copperhead", 1);
4945
4946         outb(ha->io_addr + IPS_REG_HISR, IPS_BIT_EI);
4947         inb(ha->io_addr + IPS_REG_HISR);        /*Ensure PCI Posting Completes*/
4948 }
4949
4950 /****************************************************************************/
4951 /*                                                                          */
4952 /* Routine Name: ips_enable_int_copperhead_memio                            */
4953 /*                                                                          */
4954 /* Routine Description:                                                     */
4955 /*   Turn on interrupts                                                     */
4956 /*                                                                          */
4957 /****************************************************************************/
4958 static void
4959 ips_enable_int_copperhead_memio(ips_ha_t * ha)
4960 {
4961         METHOD_TRACE("ips_enable_int_copperhead_memio", 1);
4962
4963         writeb(IPS_BIT_EI, ha->mem_ptr + IPS_REG_HISR);
4964         readb(ha->mem_ptr + IPS_REG_HISR);      /*Ensure PCI Posting Completes*/
4965 }
4966
4967 /****************************************************************************/
4968 /*                                                                          */
4969 /* Routine Name: ips_enable_int_morpheus                                    */
4970 /*                                                                          */
4971 /* Routine Description:                                                     */
4972 /*   Turn on interrupts                                                     */
4973 /*                                                                          */
4974 /****************************************************************************/
4975 static void
4976 ips_enable_int_morpheus(ips_ha_t * ha)
4977 {
4978         uint32_t Oimr;
4979
4980         METHOD_TRACE("ips_enable_int_morpheus", 1);
4981
4982         Oimr = readl(ha->mem_ptr + IPS_REG_I960_OIMR);
4983         Oimr &= ~0x08;
4984         writel(Oimr, ha->mem_ptr + IPS_REG_I960_OIMR);
4985         readl(ha->mem_ptr + IPS_REG_I960_OIMR); /*Ensure PCI Posting Completes*/
4986 }
4987
4988 /****************************************************************************/
4989 /*                                                                          */
4990 /* Routine Name: ips_init_copperhead                                        */
4991 /*                                                                          */
4992 /* Routine Description:                                                     */
4993 /*                                                                          */
4994 /*   Initialize a copperhead controller                                     */
4995 /*                                                                          */
4996 /****************************************************************************/
4997 static int
4998 ips_init_copperhead(ips_ha_t * ha)
4999 {
5000         uint8_t Isr;
5001         uint8_t Cbsp;
5002         uint8_t PostByte[IPS_MAX_POST_BYTES];
5003         uint8_t ConfigByte[IPS_MAX_CONFIG_BYTES];
5004         int i, j;
5005
5006         METHOD_TRACE("ips_init_copperhead", 1);
5007
5008         for (i = 0; i < IPS_MAX_POST_BYTES; i++) {
5009                 for (j = 0; j < 45; j++) {
5010                         Isr = inb(ha->io_addr + IPS_REG_HISR);
5011                         if (Isr & IPS_BIT_GHI)
5012                                 break;
5013
5014                         /* Delay for 1 Second */
5015                         MDELAY(IPS_ONE_SEC);
5016                 }
5017
5018                 if (j >= 45)
5019                         /* error occurred */
5020                         return (0);
5021
5022                 PostByte[i] = inb(ha->io_addr + IPS_REG_ISPR);
5023                 outb(Isr, ha->io_addr + IPS_REG_HISR);
5024         }
5025
5026         if (PostByte[0] < IPS_GOOD_POST_STATUS) {
5027                 IPS_PRINTK(KERN_WARNING, ha->pcidev,
5028                            "reset controller fails (post status %x %x).\n",
5029                            PostByte[0], PostByte[1]);
5030
5031                 return (0);
5032         }
5033
5034         for (i = 0; i < IPS_MAX_CONFIG_BYTES; i++) {
5035                 for (j = 0; j < 240; j++) {
5036                         Isr = inb(ha->io_addr + IPS_REG_HISR);
5037                         if (Isr & IPS_BIT_GHI)
5038                                 break;
5039
5040                         /* Delay for 1 Second */
5041                         MDELAY(IPS_ONE_SEC);
5042                 }
5043
5044                 if (j >= 240)
5045                         /* error occurred */
5046                         return (0);
5047
5048                 ConfigByte[i] = inb(ha->io_addr + IPS_REG_ISPR);
5049                 outb(Isr, ha->io_addr + IPS_REG_HISR);
5050         }
5051
5052         for (i = 0; i < 240; i++) {
5053                 Cbsp = inb(ha->io_addr + IPS_REG_CBSP);
5054
5055                 if ((Cbsp & IPS_BIT_OP) == 0)
5056                         break;
5057
5058                 /* Delay for 1 Second */
5059                 MDELAY(IPS_ONE_SEC);
5060         }
5061
5062         if (i >= 240)
5063                 /* reset failed */
5064                 return (0);
5065
5066         /* setup CCCR */
5067         outl(cpu_to_le32(0x1010), ha->io_addr + IPS_REG_CCCR);
5068
5069         /* Enable busmastering */
5070         outb(IPS_BIT_EBM, ha->io_addr + IPS_REG_SCPR);
5071
5072         if (ha->revision_id == IPS_REVID_TROMBONE64)
5073                 /* fix for anaconda64 */
5074                 outl(0, ha->io_addr + IPS_REG_NDAE);
5075
5076         /* Enable interrupts */
5077         outb(IPS_BIT_EI, ha->io_addr + IPS_REG_HISR);
5078
5079         return (1);
5080 }
5081
5082 /****************************************************************************/
5083 /*                                                                          */
5084 /* Routine Name: ips_init_copperhead_memio                                  */
5085 /*                                                                          */
5086 /* Routine Description:                                                     */
5087 /*                                                                          */
5088 /*   Initialize a copperhead controller with memory mapped I/O              */
5089 /*                                                                          */
5090 /****************************************************************************/
5091 static int
5092 ips_init_copperhead_memio(ips_ha_t * ha)
5093 {
5094         uint8_t Isr = 0;
5095         uint8_t Cbsp;
5096         uint8_t PostByte[IPS_MAX_POST_BYTES];
5097         uint8_t ConfigByte[IPS_MAX_CONFIG_BYTES];
5098         int i, j;
5099
5100         METHOD_TRACE("ips_init_copperhead_memio", 1);
5101
5102         for (i = 0; i < IPS_MAX_POST_BYTES; i++) {
5103                 for (j = 0; j < 45; j++) {
5104                         Isr = readb(ha->mem_ptr + IPS_REG_HISR);
5105                         if (Isr & IPS_BIT_GHI)
5106                                 break;
5107
5108                         /* Delay for 1 Second */
5109                         MDELAY(IPS_ONE_SEC);
5110                 }
5111
5112                 if (j >= 45)
5113                         /* error occurred */
5114                         return (0);
5115
5116                 PostByte[i] = readb(ha->mem_ptr + IPS_REG_ISPR);
5117                 writeb(Isr, ha->mem_ptr + IPS_REG_HISR);
5118         }
5119
5120         if (PostByte[0] < IPS_GOOD_POST_STATUS) {
5121                 IPS_PRINTK(KERN_WARNING, ha->pcidev,
5122                            "reset controller fails (post status %x %x).\n",
5123                            PostByte[0], PostByte[1]);
5124
5125                 return (0);
5126         }
5127
5128         for (i = 0; i < IPS_MAX_CONFIG_BYTES; i++) {
5129                 for (j = 0; j < 240; j++) {
5130                         Isr = readb(ha->mem_ptr + IPS_REG_HISR);
5131                         if (Isr & IPS_BIT_GHI)
5132                                 break;
5133
5134                         /* Delay for 1 Second */
5135                         MDELAY(IPS_ONE_SEC);
5136                 }
5137
5138                 if (j >= 240)
5139                         /* error occurred */
5140                         return (0);
5141
5142                 ConfigByte[i] = readb(ha->mem_ptr + IPS_REG_ISPR);
5143                 writeb(Isr, ha->mem_ptr + IPS_REG_HISR);
5144         }
5145
5146         for (i = 0; i < 240; i++) {
5147                 Cbsp = readb(ha->mem_ptr + IPS_REG_CBSP);
5148
5149                 if ((Cbsp & IPS_BIT_OP) == 0)
5150                         break;
5151
5152                 /* Delay for 1 Second */
5153                 MDELAY(IPS_ONE_SEC);
5154         }
5155
5156         if (i >= 240)
5157                 /* error occurred */
5158                 return (0);
5159
5160         /* setup CCCR */
5161         writel(0x1010, ha->mem_ptr + IPS_REG_CCCR);
5162
5163         /* Enable busmastering */
5164         writeb(IPS_BIT_EBM, ha->mem_ptr + IPS_REG_SCPR);
5165
5166         if (ha->revision_id == IPS_REVID_TROMBONE64)
5167                 /* fix for anaconda64 */
5168                 writel(0, ha->mem_ptr + IPS_REG_NDAE);
5169
5170         /* Enable interrupts */
5171         writeb(IPS_BIT_EI, ha->mem_ptr + IPS_REG_HISR);
5172
5173         /* if we get here then everything went OK */
5174         return (1);
5175 }
5176
5177 /****************************************************************************/
5178 /*                                                                          */
5179 /* Routine Name: ips_init_morpheus                                          */
5180 /*                                                                          */
5181 /* Routine Description:                                                     */
5182 /*                                                                          */
5183 /*   Initialize a morpheus controller                                       */
5184 /*                                                                          */
5185 /****************************************************************************/
5186 static int
5187 ips_init_morpheus(ips_ha_t * ha)
5188 {
5189         uint32_t Post;
5190         uint32_t Config;
5191         uint32_t Isr;
5192         uint32_t Oimr;
5193         int i;
5194
5195         METHOD_TRACE("ips_init_morpheus", 1);
5196
5197         /* Wait up to 45 secs for Post */
5198         for (i = 0; i < 45; i++) {
5199                 Isr = readl(ha->mem_ptr + IPS_REG_I2O_HIR);
5200
5201                 if (Isr & IPS_BIT_I960_MSG0I)
5202                         break;
5203
5204                 /* Delay for 1 Second */
5205                 MDELAY(IPS_ONE_SEC);
5206         }
5207
5208         if (i >= 45) {
5209                 /* error occurred */
5210                 IPS_PRINTK(KERN_WARNING, ha->pcidev,
5211                            "timeout waiting for post.\n");
5212
5213                 return (0);
5214         }
5215
5216         Post = readl(ha->mem_ptr + IPS_REG_I960_MSG0);
5217
5218         if (Post == 0x4F00) {   /* If Flashing the Battery PIC         */
5219                 IPS_PRINTK(KERN_WARNING, ha->pcidev,
5220                            "Flashing Battery PIC, Please wait ...\n");
5221
5222                 /* Clear the interrupt bit */
5223                 Isr = (uint32_t) IPS_BIT_I960_MSG0I;
5224                 writel(Isr, ha->mem_ptr + IPS_REG_I2O_HIR);
5225
5226                 for (i = 0; i < 120; i++) {     /*    Wait Up to 2 Min. for Completion */
5227                         Post = readl(ha->mem_ptr + IPS_REG_I960_MSG0);
5228                         if (Post != 0x4F00)
5229                                 break;
5230                         /* Delay for 1 Second */
5231                         MDELAY(IPS_ONE_SEC);
5232                 }
5233
5234                 if (i >= 120) {
5235                         IPS_PRINTK(KERN_WARNING, ha->pcidev,
5236                                    "timeout waiting for Battery PIC Flash\n");
5237                         return (0);
5238                 }
5239
5240         }
5241
5242         /* Clear the interrupt bit */
5243         Isr = (uint32_t) IPS_BIT_I960_MSG0I;
5244         writel(Isr, ha->mem_ptr + IPS_REG_I2O_HIR);
5245
5246         if (Post < (IPS_GOOD_POST_STATUS << 8)) {
5247                 IPS_PRINTK(KERN_WARNING, ha->pcidev,
5248                            "reset controller fails (post status %x).\n", Post);
5249
5250                 return (0);
5251         }
5252
5253         /* Wait up to 240 secs for config bytes */
5254         for (i = 0; i < 240; i++) {
5255                 Isr = readl(ha->mem_ptr + IPS_REG_I2O_HIR);
5256
5257                 if (Isr & IPS_BIT_I960_MSG1I)
5258                         break;
5259
5260                 /* Delay for 1 Second */
5261                 MDELAY(IPS_ONE_SEC);
5262         }
5263
5264         if (i >= 240) {
5265                 /* error occurred */
5266                 IPS_PRINTK(KERN_WARNING, ha->pcidev,
5267                            "timeout waiting for config.\n");
5268
5269                 return (0);
5270         }
5271
5272         Config = readl(ha->mem_ptr + IPS_REG_I960_MSG1);
5273
5274         /* Clear interrupt bit */
5275         Isr = (uint32_t) IPS_BIT_I960_MSG1I;
5276         writel(Isr, ha->mem_ptr + IPS_REG_I2O_HIR);
5277
5278         /* Turn on the interrupts */
5279         Oimr = readl(ha->mem_ptr + IPS_REG_I960_OIMR);
5280         Oimr &= ~0x8;
5281         writel(Oimr, ha->mem_ptr + IPS_REG_I960_OIMR);
5282
5283         /* if we get here then everything went OK */
5284
5285         /* Since we did a RESET, an EraseStripeLock may be needed */
5286         if (Post == 0xEF10) {
5287                 if ((Config == 0x000F) || (Config == 0x0009))
5288                         ha->requires_esl = 1;
5289         }
5290
5291         return (1);
5292 }
5293
5294 /****************************************************************************/
5295 /*                                                                          */
5296 /* Routine Name: ips_reset_copperhead                                       */
5297 /*                                                                          */
5298 /* Routine Description:                                                     */
5299 /*                                                                          */
5300 /*   Reset the controller                                                   */
5301 /*                                                                          */
5302 /****************************************************************************/
5303 static int
5304 ips_reset_copperhead(ips_ha_t * ha)
5305 {
5306         int reset_counter;
5307
5308         METHOD_TRACE("ips_reset_copperhead", 1);
5309
5310         DEBUG_VAR(1, "(%s%d) ips_reset_copperhead: io addr: %x, irq: %d",
5311                   ips_name, ha->host_num, ha->io_addr, ha->irq);
5312
5313         reset_counter = 0;
5314
5315         while (reset_counter < 2) {
5316                 reset_counter++;
5317
5318                 outb(IPS_BIT_RST, ha->io_addr + IPS_REG_SCPR);
5319
5320                 /* Delay for 1 Second */
5321                 MDELAY(IPS_ONE_SEC);
5322
5323                 outb(0, ha->io_addr + IPS_REG_SCPR);
5324
5325                 /* Delay for 1 Second */
5326                 MDELAY(IPS_ONE_SEC);
5327
5328                 if ((*ha->func.init) (ha))
5329                         break;
5330                 else if (reset_counter >= 2) {
5331
5332                         return (0);
5333                 }
5334         }
5335
5336         return (1);
5337 }
5338
5339 /****************************************************************************/
5340 /*                                                                          */
5341 /* Routine Name: ips_reset_copperhead_memio                                 */
5342 /*                                                                          */
5343 /* Routine Description:                                                     */
5344 /*                                                                          */
5345 /*   Reset the controller                                                   */
5346 /*                                                                          */
5347 /****************************************************************************/
5348 static int
5349 ips_reset_copperhead_memio(ips_ha_t * ha)
5350 {
5351         int reset_counter;
5352
5353         METHOD_TRACE("ips_reset_copperhead_memio", 1);
5354
5355         DEBUG_VAR(1, "(%s%d) ips_reset_copperhead_memio: mem addr: %x, irq: %d",
5356                   ips_name, ha->host_num, ha->mem_addr, ha->irq);
5357
5358         reset_counter = 0;
5359
5360         while (reset_counter < 2) {
5361                 reset_counter++;
5362
5363                 writeb(IPS_BIT_RST, ha->mem_ptr + IPS_REG_SCPR);
5364
5365                 /* Delay for 1 Second */
5366                 MDELAY(IPS_ONE_SEC);
5367
5368                 writeb(0, ha->mem_ptr + IPS_REG_SCPR);
5369
5370                 /* Delay for 1 Second */
5371                 MDELAY(IPS_ONE_SEC);
5372
5373                 if ((*ha->func.init) (ha))
5374                         break;
5375                 else if (reset_counter >= 2) {
5376
5377                         return (0);
5378                 }
5379         }
5380
5381         return (1);
5382 }
5383
5384 /****************************************************************************/
5385 /*                                                                          */
5386 /* Routine Name: ips_reset_morpheus                                         */
5387 /*                                                                          */
5388 /* Routine Description:                                                     */
5389 /*                                                                          */
5390 /*   Reset the controller                                                   */
5391 /*                                                                          */
5392 /****************************************************************************/
5393 static int
5394 ips_reset_morpheus(ips_ha_t * ha)
5395 {
5396         int reset_counter;
5397         uint8_t junk;
5398
5399         METHOD_TRACE("ips_reset_morpheus", 1);
5400
5401         DEBUG_VAR(1, "(%s%d) ips_reset_morpheus: mem addr: %x, irq: %d",
5402                   ips_name, ha->host_num, ha->mem_addr, ha->irq);
5403
5404         reset_counter = 0;
5405
5406         while (reset_counter < 2) {
5407                 reset_counter++;
5408
5409                 writel(0x80000000, ha->mem_ptr + IPS_REG_I960_IDR);
5410
5411                 /* Delay for 5 Seconds */
5412                 MDELAY(5 * IPS_ONE_SEC);
5413
5414                 /* Do a PCI config read to wait for adapter */
5415                 pci_read_config_byte(ha->pcidev, 4, &junk);
5416
5417                 if ((*ha->func.init) (ha))
5418                         break;
5419                 else if (reset_counter >= 2) {
5420
5421                         return (0);
5422                 }
5423         }
5424
5425         return (1);
5426 }
5427
5428 /****************************************************************************/
5429 /*                                                                          */
5430 /* Routine Name: ips_statinit                                               */
5431 /*                                                                          */
5432 /* Routine Description:                                                     */
5433 /*                                                                          */
5434 /*   Initialize the status queues on the controller                         */
5435 /*                                                                          */
5436 /****************************************************************************/
5437 static void
5438 ips_statinit(ips_ha_t * ha)
5439 {
5440         uint32_t phys_status_start;
5441
5442         METHOD_TRACE("ips_statinit", 1);
5443
5444         ha->adapt->p_status_start = ha->adapt->status;
5445         ha->adapt->p_status_end = ha->adapt->status + IPS_MAX_CMDS;
5446         ha->adapt->p_status_tail = ha->adapt->status;
5447
5448         phys_status_start = ha->adapt->hw_status_start;
5449         outl(cpu_to_le32(phys_status_start), ha->io_addr + IPS_REG_SQSR);
5450         outl(cpu_to_le32(phys_status_start + IPS_STATUS_Q_SIZE),
5451              ha->io_addr + IPS_REG_SQER);
5452         outl(cpu_to_le32(phys_status_start + IPS_STATUS_SIZE),
5453              ha->io_addr + IPS_REG_SQHR);
5454         outl(cpu_to_le32(phys_status_start), ha->io_addr + IPS_REG_SQTR);
5455
5456         ha->adapt->hw_status_tail = phys_status_start;
5457 }
5458
5459 /****************************************************************************/
5460 /*                                                                          */
5461 /* Routine Name: ips_statinit_memio                                         */
5462 /*                                                                          */
5463 /* Routine Description:                                                     */
5464 /*                                                                          */
5465 /*   Initialize the status queues on the controller                         */
5466 /*                                                                          */
5467 /****************************************************************************/
5468 static void
5469 ips_statinit_memio(ips_ha_t * ha)
5470 {
5471         uint32_t phys_status_start;
5472
5473         METHOD_TRACE("ips_statinit_memio", 1);
5474
5475         ha->adapt->p_status_start = ha->adapt->status;
5476         ha->adapt->p_status_end = ha->adapt->status + IPS_MAX_CMDS;
5477         ha->adapt->p_status_tail = ha->adapt->status;
5478
5479         phys_status_start = ha->adapt->hw_status_start;
5480         writel(phys_status_start, ha->mem_ptr + IPS_REG_SQSR);
5481         writel(phys_status_start + IPS_STATUS_Q_SIZE,
5482                ha->mem_ptr + IPS_REG_SQER);
5483         writel(phys_status_start + IPS_STATUS_SIZE, ha->mem_ptr + IPS_REG_SQHR);
5484         writel(phys_status_start, ha->mem_ptr + IPS_REG_SQTR);
5485
5486         ha->adapt->hw_status_tail = phys_status_start;
5487 }
5488
5489 /****************************************************************************/
5490 /*                                                                          */
5491 /* Routine Name: ips_statupd_copperhead                                     */
5492 /*                                                                          */
5493 /* Routine Description:                                                     */
5494 /*                                                                          */
5495 /*   Remove an element from the status queue                                */
5496 /*                                                                          */
5497 /****************************************************************************/
5498 static uint32_t
5499 ips_statupd_copperhead(ips_ha_t * ha)
5500 {
5501         METHOD_TRACE("ips_statupd_copperhead", 1);
5502
5503         if (ha->adapt->p_status_tail != ha->adapt->p_status_end) {
5504                 ha->adapt->p_status_tail++;
5505                 ha->adapt->hw_status_tail += sizeof (IPS_STATUS);
5506         } else {
5507                 ha->adapt->p_status_tail = ha->adapt->p_status_start;
5508                 ha->adapt->hw_status_tail = ha->adapt->hw_status_start;
5509         }
5510
5511         outl(cpu_to_le32(ha->adapt->hw_status_tail),
5512              ha->io_addr + IPS_REG_SQTR);
5513
5514         return (ha->adapt->p_status_tail->value);
5515 }
5516
5517 /****************************************************************************/
5518 /*                                                                          */
5519 /* Routine Name: ips_statupd_copperhead_memio                               */
5520 /*                                                                          */
5521 /* Routine Description:                                                     */
5522 /*                                                                          */
5523 /*   Remove an element from the status queue                                */
5524 /*                                                                          */
5525 /****************************************************************************/
5526 static uint32_t
5527 ips_statupd_copperhead_memio(ips_ha_t * ha)
5528 {
5529         METHOD_TRACE("ips_statupd_copperhead_memio", 1);
5530
5531         if (ha->adapt->p_status_tail != ha->adapt->p_status_end) {
5532                 ha->adapt->p_status_tail++;
5533                 ha->adapt->hw_status_tail += sizeof (IPS_STATUS);
5534         } else {
5535                 ha->adapt->p_status_tail = ha->adapt->p_status_start;
5536                 ha->adapt->hw_status_tail = ha->adapt->hw_status_start;
5537         }
5538
5539         writel(ha->adapt->hw_status_tail, ha->mem_ptr + IPS_REG_SQTR);
5540
5541         return (ha->adapt->p_status_tail->value);
5542 }
5543
5544 /****************************************************************************/
5545 /*                                                                          */
5546 /* Routine Name: ips_statupd_morpheus                                       */
5547 /*                                                                          */
5548 /* Routine Description:                                                     */
5549 /*                                                                          */
5550 /*   Remove an element from the status queue                                */
5551 /*                                                                          */
5552 /****************************************************************************/
5553 static uint32_t
5554 ips_statupd_morpheus(ips_ha_t * ha)
5555 {
5556         uint32_t val;
5557
5558         METHOD_TRACE("ips_statupd_morpheus", 1);
5559
5560         val = readl(ha->mem_ptr + IPS_REG_I2O_OUTMSGQ);
5561
5562         return (val);
5563 }
5564
5565 /****************************************************************************/
5566 /*                                                                          */
5567 /* Routine Name: ips_issue_copperhead                                       */
5568 /*                                                                          */
5569 /* Routine Description:                                                     */
5570 /*                                                                          */
5571 /*   Send a command down to the controller                                  */
5572 /*                                                                          */
5573 /****************************************************************************/
5574 static int
5575 ips_issue_copperhead(ips_ha_t * ha, ips_scb_t * scb)
5576 {
5577         uint32_t TimeOut;
5578         uint32_t val;
5579
5580         METHOD_TRACE("ips_issue_copperhead", 1);
5581
5582         if (scb->scsi_cmd) {
5583                 DEBUG_VAR(2, "(%s%d) ips_issue: cmd 0x%X id %d (%d %d %d)",
5584                           ips_name,
5585                           ha->host_num,
5586                           scb->cdb[0],
5587                           scb->cmd.basic_io.command_id,
5588                           scb->bus, scb->target_id, scb->lun);
5589         } else {
5590                 DEBUG_VAR(2, KERN_NOTICE "(%s%d) ips_issue: logical cmd id %d",
5591                           ips_name, ha->host_num, scb->cmd.basic_io.command_id);
5592         }
5593
5594         TimeOut = 0;
5595
5596         while ((val =
5597                 le32_to_cpu(inl(ha->io_addr + IPS_REG_CCCR))) & IPS_BIT_SEM) {
5598                 udelay(1000);
5599
5600                 if (++TimeOut >= IPS_SEM_TIMEOUT) {
5601                         if (!(val & IPS_BIT_START_STOP))
5602                                 break;
5603
5604                         IPS_PRINTK(KERN_WARNING, ha->pcidev,
5605                                    "ips_issue val [0x%x].\n", val);
5606                         IPS_PRINTK(KERN_WARNING, ha->pcidev,
5607                                    "ips_issue semaphore chk timeout.\n");
5608
5609                         return (IPS_FAILURE);
5610                 }               /* end if */
5611         }                       /* end while */
5612
5613         outl(cpu_to_le32(scb->scb_busaddr), ha->io_addr + IPS_REG_CCSAR);
5614         outw(cpu_to_le32(IPS_BIT_START_CMD), ha->io_addr + IPS_REG_CCCR);
5615
5616         return (IPS_SUCCESS);
5617 }
5618
5619 /****************************************************************************/
5620 /*                                                                          */
5621 /* Routine Name: ips_issue_copperhead_memio                                 */
5622 /*                                                                          */
5623 /* Routine Description:                                                     */
5624 /*                                                                          */
5625 /*   Send a command down to the controller                                  */
5626 /*                                                                          */
5627 /****************************************************************************/
5628 static int
5629 ips_issue_copperhead_memio(ips_ha_t * ha, ips_scb_t * scb)
5630 {
5631         uint32_t TimeOut;
5632         uint32_t val;
5633
5634         METHOD_TRACE("ips_issue_copperhead_memio", 1);
5635
5636         if (scb->scsi_cmd) {
5637                 DEBUG_VAR(2, "(%s%d) ips_issue: cmd 0x%X id %d (%d %d %d)",
5638                           ips_name,
5639                           ha->host_num,
5640                           scb->cdb[0],
5641                           scb->cmd.basic_io.command_id,
5642                           scb->bus, scb->target_id, scb->lun);
5643         } else {
5644                 DEBUG_VAR(2, "(%s%d) ips_issue: logical cmd id %d",
5645                           ips_name, ha->host_num, scb->cmd.basic_io.command_id);
5646         }
5647
5648         TimeOut = 0;
5649
5650         while ((val = readl(ha->mem_ptr + IPS_REG_CCCR)) & IPS_BIT_SEM) {
5651                 udelay(1000);
5652
5653                 if (++TimeOut >= IPS_SEM_TIMEOUT) {
5654                         if (!(val & IPS_BIT_START_STOP))
5655                                 break;
5656
5657                         IPS_PRINTK(KERN_WARNING, ha->pcidev,
5658                                    "ips_issue val [0x%x].\n", val);
5659                         IPS_PRINTK(KERN_WARNING, ha->pcidev,
5660                                    "ips_issue semaphore chk timeout.\n");
5661
5662                         return (IPS_FAILURE);
5663                 }               /* end if */
5664         }                       /* end while */
5665
5666         writel(scb->scb_busaddr, ha->mem_ptr + IPS_REG_CCSAR);
5667         writel(IPS_BIT_START_CMD, ha->mem_ptr + IPS_REG_CCCR);
5668
5669         return (IPS_SUCCESS);
5670 }
5671
5672 /****************************************************************************/
5673 /*                                                                          */
5674 /* Routine Name: ips_issue_i2o                                              */
5675 /*                                                                          */
5676 /* Routine Description:                                                     */
5677 /*                                                                          */
5678 /*   Send a command down to the controller                                  */
5679 /*                                                                          */
5680 /****************************************************************************/
5681 static int
5682 ips_issue_i2o(ips_ha_t * ha, ips_scb_t * scb)
5683 {
5684
5685         METHOD_TRACE("ips_issue_i2o", 1);
5686
5687         if (scb->scsi_cmd) {
5688                 DEBUG_VAR(2, "(%s%d) ips_issue: cmd 0x%X id %d (%d %d %d)",
5689                           ips_name,
5690                           ha->host_num,
5691                           scb->cdb[0],
5692                           scb->cmd.basic_io.command_id,
5693                           scb->bus, scb->target_id, scb->lun);
5694         } else {
5695                 DEBUG_VAR(2, "(%s%d) ips_issue: logical cmd id %d",
5696                           ips_name, ha->host_num, scb->cmd.basic_io.command_id);
5697         }
5698
5699         outl(cpu_to_le32(scb->scb_busaddr), ha->io_addr + IPS_REG_I2O_INMSGQ);
5700
5701         return (IPS_SUCCESS);
5702 }
5703
5704 /****************************************************************************/
5705 /*                                                                          */
5706 /* Routine Name: ips_issue_i2o_memio                                        */
5707 /*                                                                          */
5708 /* Routine Description:                                                     */
5709 /*                                                                          */
5710 /*   Send a command down to the controller                                  */
5711 /*                                                                          */
5712 /****************************************************************************/
5713 static int
5714 ips_issue_i2o_memio(ips_ha_t * ha, ips_scb_t * scb)
5715 {
5716
5717         METHOD_TRACE("ips_issue_i2o_memio", 1);
5718
5719         if (scb->scsi_cmd) {
5720                 DEBUG_VAR(2, "(%s%d) ips_issue: cmd 0x%X id %d (%d %d %d)",
5721                           ips_name,
5722                           ha->host_num,
5723                           scb->cdb[0],
5724                           scb->cmd.basic_io.command_id,
5725                           scb->bus, scb->target_id, scb->lun);
5726         } else {
5727                 DEBUG_VAR(2, "(%s%d) ips_issue: logical cmd id %d",
5728                           ips_name, ha->host_num, scb->cmd.basic_io.command_id);
5729         }
5730
5731         writel(scb->scb_busaddr, ha->mem_ptr + IPS_REG_I2O_INMSGQ);
5732
5733         return (IPS_SUCCESS);
5734 }
5735
5736 /****************************************************************************/
5737 /*                                                                          */
5738 /* Routine Name: ips_isintr_copperhead                                      */
5739 /*                                                                          */
5740 /* Routine Description:                                                     */
5741 /*                                                                          */
5742 /*   Test to see if an interrupt is for us                                  */
5743 /*                                                                          */
5744 /****************************************************************************/
5745 static int
5746 ips_isintr_copperhead(ips_ha_t * ha)
5747 {
5748         uint8_t Isr;
5749
5750         METHOD_TRACE("ips_isintr_copperhead", 2);
5751
5752         Isr = inb(ha->io_addr + IPS_REG_HISR);
5753
5754         if (Isr == 0xFF)
5755                 /* ?!?! Nothing really there */
5756                 return (0);
5757
5758         if (Isr & IPS_BIT_SCE)
5759                 return (1);
5760         else if (Isr & (IPS_BIT_SQO | IPS_BIT_GHI)) {
5761                 /* status queue overflow or GHI */
5762                 /* just clear the interrupt */
5763                 outb(Isr, ha->io_addr + IPS_REG_HISR);
5764         }
5765
5766         return (0);
5767 }
5768
5769 /****************************************************************************/
5770 /*                                                                          */
5771 /* Routine Name: ips_isintr_copperhead_memio                                */
5772 /*                                                                          */
5773 /* Routine Description:                                                     */
5774 /*                                                                          */
5775 /*   Test to see if an interrupt is for us                                  */
5776 /*                                                                          */
5777 /****************************************************************************/
5778 static int
5779 ips_isintr_copperhead_memio(ips_ha_t * ha)
5780 {
5781         uint8_t Isr;
5782
5783         METHOD_TRACE("ips_isintr_memio", 2);
5784
5785         Isr = readb(ha->mem_ptr + IPS_REG_HISR);
5786
5787         if (Isr == 0xFF)
5788                 /* ?!?! Nothing really there */
5789                 return (0);
5790
5791         if (Isr & IPS_BIT_SCE)
5792                 return (1);
5793         else if (Isr & (IPS_BIT_SQO | IPS_BIT_GHI)) {
5794                 /* status queue overflow or GHI */
5795                 /* just clear the interrupt */
5796                 writeb(Isr, ha->mem_ptr + IPS_REG_HISR);
5797         }
5798
5799         return (0);
5800 }
5801
5802 /****************************************************************************/
5803 /*                                                                          */
5804 /* Routine Name: ips_isintr_morpheus                                        */
5805 /*                                                                          */
5806 /* Routine Description:                                                     */
5807 /*                                                                          */
5808 /*   Test to see if an interrupt is for us                                  */
5809 /*                                                                          */
5810 /****************************************************************************/
5811 static int
5812 ips_isintr_morpheus(ips_ha_t * ha)
5813 {
5814         uint32_t Isr;
5815
5816         METHOD_TRACE("ips_isintr_morpheus", 2);
5817
5818         Isr = readl(ha->mem_ptr + IPS_REG_I2O_HIR);
5819
5820         if (Isr & IPS_BIT_I2O_OPQI)
5821                 return (1);
5822         else
5823                 return (0);
5824 }
5825
5826 /****************************************************************************/
5827 /*                                                                          */
5828 /* Routine Name: ips_wait                                                   */
5829 /*                                                                          */
5830 /* Routine Description:                                                     */
5831 /*                                                                          */
5832 /*   Wait for a command to complete                                         */
5833 /*                                                                          */
5834 /****************************************************************************/
5835 static int
5836 ips_wait(ips_ha_t * ha, int time, int intr)
5837 {
5838         int ret;
5839         int done;
5840
5841         METHOD_TRACE("ips_wait", 1);
5842
5843         ret = IPS_FAILURE;
5844         done = FALSE;
5845
5846         time *= IPS_ONE_SEC;    /* convert seconds */
5847
5848         while ((time > 0) && (!done)) {
5849                 if (intr == IPS_INTR_ON) {
5850                         if (ha->waitflag == FALSE) {
5851                                 ret = IPS_SUCCESS;
5852                                 done = TRUE;
5853                                 break;
5854                         }
5855                 } else if (intr == IPS_INTR_IORL) {
5856                         if (ha->waitflag == FALSE) {
5857                                 /*
5858                                  * controller generated an interrupt to
5859                                  * acknowledge completion of the command
5860                                  * and ips_intr() has serviced the interrupt.
5861                                  */
5862                                 ret = IPS_SUCCESS;
5863                                 done = TRUE;
5864                                 break;
5865                         }
5866
5867                         /*
5868                          * NOTE: we already have the io_request_lock so
5869                          * even if we get an interrupt it won't get serviced
5870                          * until after we finish.
5871                          */
5872
5873                         (*ha->func.intr) (ha);
5874                 }
5875
5876                 /* This looks like a very evil loop, but it only does this during start-up */
5877                 udelay(1000);
5878                 time--;
5879         }
5880
5881         return (ret);
5882 }
5883
5884 /****************************************************************************/
5885 /*                                                                          */
5886 /* Routine Name: ips_write_driver_status                                    */
5887 /*                                                                          */
5888 /* Routine Description:                                                     */
5889 /*                                                                          */
5890 /*   Write OS/Driver version to Page 5 of the nvram on the controller       */
5891 /*                                                                          */
5892 /****************************************************************************/
5893 static int
5894 ips_write_driver_status(ips_ha_t * ha, int intr)
5895 {
5896         METHOD_TRACE("ips_write_driver_status", 1);
5897
5898         if (!ips_readwrite_page5(ha, FALSE, intr)) {
5899                 IPS_PRINTK(KERN_WARNING, ha->pcidev,
5900                            "unable to read NVRAM page 5.\n");
5901
5902                 return (0);
5903         }
5904
5905         /* check to make sure the page has a valid */
5906         /* signature */
5907         if (le32_to_cpu(ha->nvram->signature) != IPS_NVRAM_P5_SIG) {
5908                 DEBUG_VAR(1,
5909                           "(%s%d) NVRAM page 5 has an invalid signature: %X.",
5910                           ips_name, ha->host_num, ha->nvram->signature);
5911                 ha->nvram->signature = IPS_NVRAM_P5_SIG;
5912         }
5913
5914         DEBUG_VAR(2,
5915                   "(%s%d) Ad Type: %d, Ad Slot: %d, BIOS: %c%c%c%c %c%c%c%c.",
5916                   ips_name, ha->host_num, le16_to_cpu(ha->nvram->adapter_type),
5917                   ha->nvram->adapter_slot, ha->nvram->bios_high[0],
5918                   ha->nvram->bios_high[1], ha->nvram->bios_high[2],
5919                   ha->nvram->bios_high[3], ha->nvram->bios_low[0],
5920                   ha->nvram->bios_low[1], ha->nvram->bios_low[2],
5921                   ha->nvram->bios_low[3]);
5922
5923         ips_get_bios_version(ha, intr);
5924
5925         /* change values (as needed) */
5926         ha->nvram->operating_system = IPS_OS_LINUX;
5927         ha->nvram->adapter_type = ha->ad_type;
5928         strncpy((char *) ha->nvram->driver_high, IPS_VERSION_HIGH, 4);
5929         strncpy((char *) ha->nvram->driver_low, IPS_VERSION_LOW, 4);
5930         strncpy((char *) ha->nvram->bios_high, ha->bios_version, 4);
5931         strncpy((char *) ha->nvram->bios_low, ha->bios_version + 4, 4);
5932
5933         ips_version_check(ha, intr);    /* Check BIOS/FW/Driver Versions */
5934
5935         /* now update the page */
5936         if (!ips_readwrite_page5(ha, TRUE, intr)) {
5937                 IPS_PRINTK(KERN_WARNING, ha->pcidev,
5938                            "unable to write NVRAM page 5.\n");
5939
5940                 return (0);
5941         }
5942
5943         /* IF NVRAM Page 5 is OK, Use it for Slot Number Info Because Linux Doesn't Do Slots */
5944         ha->slot_num = ha->nvram->adapter_slot;
5945
5946         return (1);
5947 }
5948
5949 /****************************************************************************/
5950 /*                                                                          */
5951 /* Routine Name: ips_read_adapter_status                                    */
5952 /*                                                                          */
5953 /* Routine Description:                                                     */
5954 /*                                                                          */
5955 /*   Do an Inquiry command to the adapter                                   */
5956 /*                                                                          */
5957 /****************************************************************************/
5958 static int
5959 ips_read_adapter_status(ips_ha_t * ha, int intr)
5960 {
5961         ips_scb_t *scb;
5962         int ret;
5963
5964         METHOD_TRACE("ips_read_adapter_status", 1);
5965
5966         scb = &ha->scbs[ha->max_cmds - 1];
5967
5968         ips_init_scb(ha, scb);
5969
5970         scb->timeout = ips_cmd_timeout;
5971         scb->cdb[0] = IPS_CMD_ENQUIRY;
5972
5973         scb->cmd.basic_io.op_code = IPS_CMD_ENQUIRY;
5974         scb->cmd.basic_io.command_id = IPS_COMMAND_ID(ha, scb);
5975         scb->cmd.basic_io.sg_count = 0;
5976         scb->cmd.basic_io.lba = 0;
5977         scb->cmd.basic_io.sector_count = 0;
5978         scb->cmd.basic_io.log_drv = 0;
5979         scb->data_len = sizeof (*ha->enq);
5980         scb->cmd.basic_io.sg_addr = ha->enq_busaddr;
5981
5982         /* send command */
5983         if (((ret =
5984               ips_send_wait(ha, scb, ips_cmd_timeout, intr)) == IPS_FAILURE)
5985             || (ret == IPS_SUCCESS_IMM)
5986             || ((scb->basic_status & IPS_GSC_STATUS_MASK) > 1))
5987                 return (0);
5988
5989         return (1);
5990 }
5991
5992 /****************************************************************************/
5993 /*                                                                          */
5994 /* Routine Name: ips_read_subsystem_parameters                              */
5995 /*                                                                          */
5996 /* Routine Description:                                                     */
5997 /*                                                                          */
5998 /*   Read subsystem parameters from the adapter                             */
5999 /*                                                                          */
6000 /****************************************************************************/
6001 static int
6002 ips_read_subsystem_parameters(ips_ha_t * ha, int intr)
6003 {
6004         ips_scb_t *scb;
6005         int ret;
6006
6007         METHOD_TRACE("ips_read_subsystem_parameters", 1);
6008
6009         scb = &ha->scbs[ha->max_cmds - 1];
6010
6011         ips_init_scb(ha, scb);
6012
6013         scb->timeout = ips_cmd_timeout;
6014         scb->cdb[0] = IPS_CMD_GET_SUBSYS;
6015
6016         scb->cmd.basic_io.op_code = IPS_CMD_GET_SUBSYS;
6017         scb->cmd.basic_io.command_id = IPS_COMMAND_ID(ha, scb);
6018         scb->cmd.basic_io.sg_count = 0;
6019         scb->cmd.basic_io.lba = 0;
6020         scb->cmd.basic_io.sector_count = 0;
6021         scb->cmd.basic_io.log_drv = 0;
6022         scb->data_len = sizeof (*ha->subsys);
6023         scb->cmd.basic_io.sg_addr = ha->ioctl_busaddr;
6024
6025         /* send command */
6026         if (((ret =
6027               ips_send_wait(ha, scb, ips_cmd_timeout, intr)) == IPS_FAILURE)
6028             || (ret == IPS_SUCCESS_IMM)
6029             || ((scb->basic_status & IPS_GSC_STATUS_MASK) > 1))
6030                 return (0);
6031
6032         memcpy(ha->subsys, ha->ioctl_data, sizeof(*ha->subsys));
6033         return (1);
6034 }
6035
6036 /****************************************************************************/
6037 /*                                                                          */
6038 /* Routine Name: ips_read_config                                            */
6039 /*                                                                          */
6040 /* Routine Description:                                                     */
6041 /*                                                                          */
6042 /*   Read the configuration on the adapter                                  */
6043 /*                                                                          */
6044 /****************************************************************************/
6045 static int
6046 ips_read_config(ips_ha_t * ha, int intr)
6047 {
6048         ips_scb_t *scb;
6049         int i;
6050         int ret;
6051
6052         METHOD_TRACE("ips_read_config", 1);
6053
6054         /* set defaults for initiator IDs */
6055         for (i = 0; i < 4; i++)
6056                 ha->conf->init_id[i] = 7;
6057
6058         scb = &ha->scbs[ha->max_cmds - 1];
6059
6060         ips_init_scb(ha, scb);
6061
6062         scb->timeout = ips_cmd_timeout;
6063         scb->cdb[0] = IPS_CMD_READ_CONF;
6064
6065         scb->cmd.basic_io.op_code = IPS_CMD_READ_CONF;
6066         scb->cmd.basic_io.command_id = IPS_COMMAND_ID(ha, scb);
6067         scb->data_len = sizeof (*ha->conf);
6068         scb->cmd.basic_io.sg_addr = ha->ioctl_busaddr;
6069
6070         /* send command */
6071         if (((ret =
6072               ips_send_wait(ha, scb, ips_cmd_timeout, intr)) == IPS_FAILURE)
6073             || (ret == IPS_SUCCESS_IMM)
6074             || ((scb->basic_status & IPS_GSC_STATUS_MASK) > 1)) {
6075
6076                 memset(ha->conf, 0, sizeof (IPS_CONF));
6077
6078                 /* reset initiator IDs */
6079                 for (i = 0; i < 4; i++)
6080                         ha->conf->init_id[i] = 7;
6081
6082                 /* Allow Completed with Errors, so JCRM can access the Adapter to fix the problems */
6083                 if ((scb->basic_status & IPS_GSC_STATUS_MASK) ==
6084                     IPS_CMD_CMPLT_WERROR)
6085                         return (1);
6086
6087                 return (0);
6088         }
6089
6090         memcpy(ha->conf, ha->ioctl_data, sizeof(*ha->conf));
6091         return (1);
6092 }
6093
6094 /****************************************************************************/
6095 /*                                                                          */
6096 /* Routine Name: ips_readwrite_page5                                        */
6097 /*                                                                          */
6098 /* Routine Description:                                                     */
6099 /*                                                                          */
6100 /*   Read nvram page 5 from the adapter                                     */
6101 /*                                                                          */
6102 /****************************************************************************/
6103 static int
6104 ips_readwrite_page5(ips_ha_t * ha, int write, int intr)
6105 {
6106         ips_scb_t *scb;
6107         int ret;
6108
6109         METHOD_TRACE("ips_readwrite_page5", 1);
6110
6111         scb = &ha->scbs[ha->max_cmds - 1];
6112
6113         ips_init_scb(ha, scb);
6114
6115         scb->timeout = ips_cmd_timeout;
6116         scb->cdb[0] = IPS_CMD_RW_NVRAM_PAGE;
6117
6118         scb->cmd.nvram.op_code = IPS_CMD_RW_NVRAM_PAGE;
6119         scb->cmd.nvram.command_id = IPS_COMMAND_ID(ha, scb);
6120         scb->cmd.nvram.page = 5;
6121         scb->cmd.nvram.write = write;
6122         scb->cmd.nvram.reserved = 0;
6123         scb->cmd.nvram.reserved2 = 0;
6124         scb->data_len = sizeof (*ha->nvram);
6125         scb->cmd.nvram.buffer_addr = ha->ioctl_busaddr;
6126         if (write)
6127                 memcpy(ha->ioctl_data, ha->nvram, sizeof(*ha->nvram));
6128
6129         /* issue the command */
6130         if (((ret =
6131               ips_send_wait(ha, scb, ips_cmd_timeout, intr)) == IPS_FAILURE)
6132             || (ret == IPS_SUCCESS_IMM)
6133             || ((scb->basic_status & IPS_GSC_STATUS_MASK) > 1)) {
6134
6135                 memset(ha->nvram, 0, sizeof (IPS_NVRAM_P5));
6136
6137                 return (0);
6138         }
6139         if (!write)
6140                 memcpy(ha->nvram, ha->ioctl_data, sizeof(*ha->nvram));
6141         return (1);
6142 }
6143
6144 /****************************************************************************/
6145 /*                                                                          */
6146 /* Routine Name: ips_clear_adapter                                          */
6147 /*                                                                          */
6148 /* Routine Description:                                                     */
6149 /*                                                                          */
6150 /*   Clear the stripe lock tables                                           */
6151 /*                                                                          */
6152 /****************************************************************************/
6153 static int
6154 ips_clear_adapter(ips_ha_t * ha, int intr)
6155 {
6156         ips_scb_t *scb;
6157         int ret;
6158
6159         METHOD_TRACE("ips_clear_adapter", 1);
6160
6161         scb = &ha->scbs[ha->max_cmds - 1];
6162
6163         ips_init_scb(ha, scb);
6164
6165         scb->timeout = ips_reset_timeout;
6166         scb->cdb[0] = IPS_CMD_CONFIG_SYNC;
6167
6168         scb->cmd.config_sync.op_code = IPS_CMD_CONFIG_SYNC;
6169         scb->cmd.config_sync.command_id = IPS_COMMAND_ID(ha, scb);
6170         scb->cmd.config_sync.channel = 0;
6171         scb->cmd.config_sync.source_target = IPS_POCL;
6172         scb->cmd.config_sync.reserved = 0;
6173         scb->cmd.config_sync.reserved2 = 0;
6174         scb->cmd.config_sync.reserved3 = 0;
6175
6176         /* issue command */
6177         if (((ret =
6178               ips_send_wait(ha, scb, ips_reset_timeout, intr)) == IPS_FAILURE)
6179             || (ret == IPS_SUCCESS_IMM)
6180             || ((scb->basic_status & IPS_GSC_STATUS_MASK) > 1))
6181                 return (0);
6182
6183         /* send unlock stripe command */
6184         ips_init_scb(ha, scb);
6185
6186         scb->cdb[0] = IPS_CMD_ERROR_TABLE;
6187         scb->timeout = ips_reset_timeout;
6188
6189         scb->cmd.unlock_stripe.op_code = IPS_CMD_ERROR_TABLE;
6190         scb->cmd.unlock_stripe.command_id = IPS_COMMAND_ID(ha, scb);
6191         scb->cmd.unlock_stripe.log_drv = 0;
6192         scb->cmd.unlock_stripe.control = IPS_CSL;
6193         scb->cmd.unlock_stripe.reserved = 0;
6194         scb->cmd.unlock_stripe.reserved2 = 0;
6195         scb->cmd.unlock_stripe.reserved3 = 0;
6196
6197         /* issue command */
6198         if (((ret =
6199               ips_send_wait(ha, scb, ips_cmd_timeout, intr)) == IPS_FAILURE)
6200             || (ret == IPS_SUCCESS_IMM)
6201             || ((scb->basic_status & IPS_GSC_STATUS_MASK) > 1))
6202                 return (0);
6203
6204         return (1);
6205 }
6206
6207 /****************************************************************************/
6208 /*                                                                          */
6209 /* Routine Name: ips_ffdc_reset                                             */
6210 /*                                                                          */
6211 /* Routine Description:                                                     */
6212 /*                                                                          */
6213 /*   FFDC: write reset info                                                 */
6214 /*                                                                          */
6215 /****************************************************************************/
6216 static void
6217 ips_ffdc_reset(ips_ha_t * ha, int intr)
6218 {
6219         ips_scb_t *scb;
6220
6221         METHOD_TRACE("ips_ffdc_reset", 1);
6222
6223         scb = &ha->scbs[ha->max_cmds - 1];
6224
6225         ips_init_scb(ha, scb);
6226
6227         scb->timeout = ips_cmd_timeout;
6228         scb->cdb[0] = IPS_CMD_FFDC;
6229         scb->cmd.ffdc.op_code = IPS_CMD_FFDC;
6230         scb->cmd.ffdc.command_id = IPS_COMMAND_ID(ha, scb);
6231         scb->cmd.ffdc.reset_count = ha->reset_count;
6232         scb->cmd.ffdc.reset_type = 0x80;
6233
6234         /* convert time to what the card wants */
6235         ips_fix_ffdc_time(ha, scb, ha->last_ffdc);
6236
6237         /* issue command */
6238         ips_send_wait(ha, scb, ips_cmd_timeout, intr);
6239 }
6240
6241 /****************************************************************************/
6242 /*                                                                          */
6243 /* Routine Name: ips_ffdc_time                                              */
6244 /*                                                                          */
6245 /* Routine Description:                                                     */
6246 /*                                                                          */
6247 /*   FFDC: write time info                                                  */
6248 /*                                                                          */
6249 /****************************************************************************/
6250 static void
6251 ips_ffdc_time(ips_ha_t * ha)
6252 {
6253         ips_scb_t *scb;
6254
6255         METHOD_TRACE("ips_ffdc_time", 1);
6256
6257         DEBUG_VAR(1, "(%s%d) Sending time update.", ips_name, ha->host_num);
6258
6259         scb = &ha->scbs[ha->max_cmds - 1];
6260
6261         ips_init_scb(ha, scb);
6262
6263         scb->timeout = ips_cmd_timeout;
6264         scb->cdb[0] = IPS_CMD_FFDC;
6265         scb->cmd.ffdc.op_code = IPS_CMD_FFDC;
6266         scb->cmd.ffdc.command_id = IPS_COMMAND_ID(ha, scb);
6267         scb->cmd.ffdc.reset_count = 0;
6268         scb->cmd.ffdc.reset_type = 0;
6269
6270         /* convert time to what the card wants */
6271         ips_fix_ffdc_time(ha, scb, ha->last_ffdc);
6272
6273         /* issue command */
6274         ips_send_wait(ha, scb, ips_cmd_timeout, IPS_FFDC);
6275 }
6276
6277 /****************************************************************************/
6278 /*                                                                          */
6279 /* Routine Name: ips_fix_ffdc_time                                          */
6280 /*                                                                          */
6281 /* Routine Description:                                                     */
6282 /*   Adjust time_t to what the card wants                                   */
6283 /*                                                                          */
6284 /****************************************************************************/
6285 static void
6286 ips_fix_ffdc_time(ips_ha_t * ha, ips_scb_t * scb, time_t current_time)
6287 {
6288         long days;
6289         long rem;
6290         int i;
6291         int year;
6292         int yleap;
6293         int year_lengths[2] = { IPS_DAYS_NORMAL_YEAR, IPS_DAYS_LEAP_YEAR };
6294         int month_lengths[12][2] = { {31, 31},
6295         {28, 29},
6296         {31, 31},
6297         {30, 30},
6298         {31, 31},
6299         {30, 30},
6300         {31, 31},
6301         {31, 31},
6302         {30, 30},
6303         {31, 31},
6304         {30, 30},
6305         {31, 31}
6306         };
6307
6308         METHOD_TRACE("ips_fix_ffdc_time", 1);
6309
6310         days = current_time / IPS_SECS_DAY;
6311         rem = current_time % IPS_SECS_DAY;
6312
6313         scb->cmd.ffdc.hour = (rem / IPS_SECS_HOUR);
6314         rem = rem % IPS_SECS_HOUR;
6315         scb->cmd.ffdc.minute = (rem / IPS_SECS_MIN);
6316         scb->cmd.ffdc.second = (rem % IPS_SECS_MIN);
6317
6318         year = IPS_EPOCH_YEAR;
6319         while (days < 0 || days >= year_lengths[yleap = IPS_IS_LEAP_YEAR(year)]) {
6320                 int newy;
6321
6322                 newy = year + (days / IPS_DAYS_NORMAL_YEAR);
6323                 if (days < 0)
6324                         --newy;
6325                 days -= (newy - year) * IPS_DAYS_NORMAL_YEAR +
6326                     IPS_NUM_LEAP_YEARS_THROUGH(newy - 1) -
6327                     IPS_NUM_LEAP_YEARS_THROUGH(year - 1);
6328                 year = newy;
6329         }
6330
6331         scb->cmd.ffdc.yearH = year / 100;
6332         scb->cmd.ffdc.yearL = year % 100;
6333
6334         for (i = 0; days >= month_lengths[i][yleap]; ++i)
6335                 days -= month_lengths[i][yleap];
6336
6337         scb->cmd.ffdc.month = i + 1;
6338         scb->cmd.ffdc.day = days + 1;
6339 }
6340
6341 /****************************************************************************
6342  * BIOS Flash Routines                                                      *
6343  ****************************************************************************/
6344
6345 /****************************************************************************/
6346 /*                                                                          */
6347 /* Routine Name: ips_erase_bios                                             */
6348 /*                                                                          */
6349 /* Routine Description:                                                     */
6350 /*   Erase the BIOS on the adapter                                          */
6351 /*                                                                          */
6352 /****************************************************************************/
6353 static int
6354 ips_erase_bios(ips_ha_t * ha)
6355 {
6356         int timeout;
6357         uint8_t status = 0;
6358
6359         METHOD_TRACE("ips_erase_bios", 1);
6360
6361         status = 0;
6362
6363         /* Clear the status register */
6364         outl(0, ha->io_addr + IPS_REG_FLAP);
6365         if (ha->revision_id == IPS_REVID_TROMBONE64)
6366                 udelay(25);     /* 25 us */
6367
6368         outb(0x50, ha->io_addr + IPS_REG_FLDP);
6369         if (ha->revision_id == IPS_REVID_TROMBONE64)
6370                 udelay(25);     /* 25 us */
6371
6372         /* Erase Setup */
6373         outb(0x20, ha->io_addr + IPS_REG_FLDP);
6374         if (ha->revision_id == IPS_REVID_TROMBONE64)
6375                 udelay(25);     /* 25 us */
6376
6377         /* Erase Confirm */
6378         outb(0xD0, ha->io_addr + IPS_REG_FLDP);
6379         if (ha->revision_id == IPS_REVID_TROMBONE64)
6380                 udelay(25);     /* 25 us */
6381
6382         /* Erase Status */
6383         outb(0x70, ha->io_addr + IPS_REG_FLDP);
6384         if (ha->revision_id == IPS_REVID_TROMBONE64)
6385                 udelay(25);     /* 25 us */
6386
6387         timeout = 80000;        /* 80 seconds */
6388
6389         while (timeout > 0) {
6390                 if (ha->revision_id == IPS_REVID_TROMBONE64) {
6391                         outl(0, ha->io_addr + IPS_REG_FLAP);
6392                         udelay(25);     /* 25 us */
6393                 }
6394
6395                 status = inb(ha->io_addr + IPS_REG_FLDP);
6396
6397                 if (status & 0x80)
6398                         break;
6399
6400                 MDELAY(1);
6401                 timeout--;
6402         }
6403
6404         /* check for timeout */
6405         if (timeout <= 0) {
6406                 /* timeout */
6407
6408                 /* try to suspend the erase */
6409                 outb(0xB0, ha->io_addr + IPS_REG_FLDP);
6410                 if (ha->revision_id == IPS_REVID_TROMBONE64)
6411                         udelay(25);     /* 25 us */
6412
6413                 /* wait for 10 seconds */
6414                 timeout = 10000;
6415                 while (timeout > 0) {
6416                         if (ha->revision_id == IPS_REVID_TROMBONE64) {
6417                                 outl(0, ha->io_addr + IPS_REG_FLAP);
6418                                 udelay(25);     /* 25 us */
6419                         }
6420
6421                         status = inb(ha->io_addr + IPS_REG_FLDP);
6422
6423                         if (status & 0xC0)
6424                                 break;
6425
6426                         MDELAY(1);
6427                         timeout--;
6428                 }
6429
6430                 return (1);
6431         }
6432
6433         /* check for valid VPP */
6434         if (status & 0x08)
6435                 /* VPP failure */
6436                 return (1);
6437
6438         /* check for succesful flash */
6439         if (status & 0x30)
6440                 /* sequence error */
6441                 return (1);
6442
6443         /* Otherwise, we were successful */
6444         /* clear status */
6445         outb(0x50, ha->io_addr + IPS_REG_FLDP);
6446         if (ha->revision_id == IPS_REVID_TROMBONE64)
6447                 udelay(25);     /* 25 us */
6448
6449         /* enable reads */
6450         outb(0xFF, ha->io_addr + IPS_REG_FLDP);
6451         if (ha->revision_id == IPS_REVID_TROMBONE64)
6452                 udelay(25);     /* 25 us */
6453
6454         return (0);
6455 }
6456
6457 /****************************************************************************/
6458 /*                                                                          */
6459 /* Routine Name: ips_erase_bios_memio                                       */
6460 /*                                                                          */
6461 /* Routine Description:                                                     */
6462 /*   Erase the BIOS on the adapter                                          */
6463 /*                                                                          */
6464 /****************************************************************************/
6465 static int
6466 ips_erase_bios_memio(ips_ha_t * ha)
6467 {
6468         int timeout;
6469         uint8_t status;
6470
6471         METHOD_TRACE("ips_erase_bios_memio", 1);
6472
6473         status = 0;
6474
6475         /* Clear the status register */
6476         writel(0, ha->mem_ptr + IPS_REG_FLAP);
6477         if (ha->revision_id == IPS_REVID_TROMBONE64)
6478                 udelay(25);     /* 25 us */
6479
6480         writeb(0x50, ha->mem_ptr + IPS_REG_FLDP);
6481         if (ha->revision_id == IPS_REVID_TROMBONE64)
6482                 udelay(25);     /* 25 us */
6483
6484         /* Erase Setup */
6485         writeb(0x20, ha->mem_ptr + IPS_REG_FLDP);
6486         if (ha->revision_id == IPS_REVID_TROMBONE64)
6487                 udelay(25);     /* 25 us */
6488
6489         /* Erase Confirm */
6490         writeb(0xD0, ha->mem_ptr + IPS_REG_FLDP);
6491         if (ha->revision_id == IPS_REVID_TROMBONE64)
6492                 udelay(25);     /* 25 us */
6493
6494         /* Erase Status */
6495         writeb(0x70, ha->mem_ptr + IPS_REG_FLDP);
6496         if (ha->revision_id == IPS_REVID_TROMBONE64)
6497                 udelay(25);     /* 25 us */
6498
6499         timeout = 80000;        /* 80 seconds */
6500
6501         while (timeout > 0) {
6502                 if (ha->revision_id == IPS_REVID_TROMBONE64) {
6503                         writel(0, ha->mem_ptr + IPS_REG_FLAP);
6504                         udelay(25);     /* 25 us */
6505                 }
6506
6507                 status = readb(ha->mem_ptr + IPS_REG_FLDP);
6508
6509                 if (status & 0x80)
6510                         break;
6511
6512                 MDELAY(1);
6513                 timeout--;
6514         }
6515
6516         /* check for timeout */
6517         if (timeout <= 0) {
6518                 /* timeout */
6519
6520                 /* try to suspend the erase */
6521                 writeb(0xB0, ha->mem_ptr + IPS_REG_FLDP);
6522                 if (ha->revision_id == IPS_REVID_TROMBONE64)
6523                         udelay(25);     /* 25 us */
6524
6525                 /* wait for 10 seconds */
6526                 timeout = 10000;
6527                 while (timeout > 0) {
6528                         if (ha->revision_id == IPS_REVID_TROMBONE64) {
6529                                 writel(0, ha->mem_ptr + IPS_REG_FLAP);
6530                                 udelay(25);     /* 25 us */
6531                         }
6532
6533                         status = readb(ha->mem_ptr + IPS_REG_FLDP);
6534
6535                         if (status & 0xC0)
6536                                 break;
6537
6538                         MDELAY(1);
6539                         timeout--;
6540                 }
6541
6542                 return (1);
6543         }
6544
6545         /* check for valid VPP */
6546         if (status & 0x08)
6547                 /* VPP failure */
6548                 return (1);
6549
6550         /* check for succesful flash */
6551         if (status & 0x30)
6552                 /* sequence error */
6553                 return (1);
6554
6555         /* Otherwise, we were successful */
6556         /* clear status */
6557         writeb(0x50, ha->mem_ptr + IPS_REG_FLDP);
6558         if (ha->revision_id == IPS_REVID_TROMBONE64)
6559                 udelay(25);     /* 25 us */
6560
6561         /* enable reads */
6562         writeb(0xFF, ha->mem_ptr + IPS_REG_FLDP);
6563         if (ha->revision_id == IPS_REVID_TROMBONE64)
6564                 udelay(25);     /* 25 us */
6565
6566         return (0);
6567 }
6568
6569 /****************************************************************************/
6570 /*                                                                          */
6571 /* Routine Name: ips_program_bios                                           */
6572 /*                                                                          */
6573 /* Routine Description:                                                     */
6574 /*   Program the BIOS on the adapter                                        */
6575 /*                                                                          */
6576 /****************************************************************************/
6577 static int
6578 ips_program_bios(ips_ha_t * ha, char *buffer, uint32_t buffersize,
6579                  uint32_t offset)
6580 {
6581         int i;
6582         int timeout;
6583         uint8_t status = 0;
6584
6585         METHOD_TRACE("ips_program_bios", 1);
6586
6587         status = 0;
6588
6589         for (i = 0; i < buffersize; i++) {
6590                 /* write a byte */
6591                 outl(cpu_to_le32(i + offset), ha->io_addr + IPS_REG_FLAP);
6592                 if (ha->revision_id == IPS_REVID_TROMBONE64)
6593                         udelay(25);     /* 25 us */
6594
6595                 outb(0x40, ha->io_addr + IPS_REG_FLDP);
6596                 if (ha->revision_id == IPS_REVID_TROMBONE64)
6597                         udelay(25);     /* 25 us */
6598
6599                 outb(buffer[i], ha->io_addr + IPS_REG_FLDP);
6600                 if (ha->revision_id == IPS_REVID_TROMBONE64)
6601                         udelay(25);     /* 25 us */
6602
6603                 /* wait up to one second */
6604                 timeout = 1000;
6605                 while (timeout > 0) {
6606                         if (ha->revision_id == IPS_REVID_TROMBONE64) {
6607                                 outl(0, ha->io_addr + IPS_REG_FLAP);
6608                                 udelay(25);     /* 25 us */
6609                         }
6610
6611                         status = inb(ha->io_addr + IPS_REG_FLDP);
6612
6613                         if (status & 0x80)
6614                                 break;
6615
6616                         MDELAY(1);
6617                         timeout--;
6618                 }
6619
6620                 if (timeout == 0) {
6621                         /* timeout error */
6622                         outl(0, ha->io_addr + IPS_REG_FLAP);
6623                         if (ha->revision_id == IPS_REVID_TROMBONE64)
6624                                 udelay(25);     /* 25 us */
6625
6626                         outb(0xFF, ha->io_addr + IPS_REG_FLDP);
6627                         if (ha->revision_id == IPS_REVID_TROMBONE64)
6628                                 udelay(25);     /* 25 us */
6629
6630                         return (1);
6631                 }
6632
6633                 /* check the status */
6634                 if (status & 0x18) {
6635                         /* programming error */
6636                         outl(0, ha->io_addr + IPS_REG_FLAP);
6637                         if (ha->revision_id == IPS_REVID_TROMBONE64)
6638                                 udelay(25);     /* 25 us */
6639
6640                         outb(0xFF, ha->io_addr + IPS_REG_FLDP);
6641                         if (ha->revision_id == IPS_REVID_TROMBONE64)
6642                                 udelay(25);     /* 25 us */
6643
6644                         return (1);
6645                 }
6646         }                       /* end for */
6647
6648         /* Enable reading */
6649         outl(0, ha->io_addr + IPS_REG_FLAP);
6650         if (ha->revision_id == IPS_REVID_TROMBONE64)
6651                 udelay(25);     /* 25 us */
6652
6653         outb(0xFF, ha->io_addr + IPS_REG_FLDP);
6654         if (ha->revision_id == IPS_REVID_TROMBONE64)
6655                 udelay(25);     /* 25 us */
6656
6657         return (0);
6658 }
6659
6660 /****************************************************************************/
6661 /*                                                                          */
6662 /* Routine Name: ips_program_bios_memio                                     */
6663 /*                                                                          */
6664 /* Routine Description:                                                     */
6665 /*   Program the BIOS on the adapter                                        */
6666 /*                                                                          */
6667 /****************************************************************************/
6668 static int
6669 ips_program_bios_memio(ips_ha_t * ha, char *buffer, uint32_t buffersize,
6670                        uint32_t offset)
6671 {
6672         int i;
6673         int timeout;
6674         uint8_t status = 0;
6675
6676         METHOD_TRACE("ips_program_bios_memio", 1);
6677
6678         status = 0;
6679
6680         for (i = 0; i < buffersize; i++) {
6681                 /* write a byte */
6682                 writel(i + offset, ha->mem_ptr + IPS_REG_FLAP);
6683                 if (ha->revision_id == IPS_REVID_TROMBONE64)
6684                         udelay(25);     /* 25 us */
6685
6686                 writeb(0x40, ha->mem_ptr + IPS_REG_FLDP);
6687                 if (ha->revision_id == IPS_REVID_TROMBONE64)
6688                         udelay(25);     /* 25 us */
6689
6690                 writeb(buffer[i], ha->mem_ptr + IPS_REG_FLDP);
6691                 if (ha->revision_id == IPS_REVID_TROMBONE64)
6692                         udelay(25);     /* 25 us */
6693
6694                 /* wait up to one second */
6695                 timeout = 1000;
6696                 while (timeout > 0) {
6697                         if (ha->revision_id == IPS_REVID_TROMBONE64) {
6698                                 writel(0, ha->mem_ptr + IPS_REG_FLAP);
6699                                 udelay(25);     /* 25 us */
6700                         }
6701
6702                         status = readb(ha->mem_ptr + IPS_REG_FLDP);
6703
6704                         if (status & 0x80)
6705                                 break;
6706
6707                         MDELAY(1);
6708                         timeout--;
6709                 }
6710
6711                 if (timeout == 0) {
6712                         /* timeout error */
6713                         writel(0, ha->mem_ptr + IPS_REG_FLAP);
6714                         if (ha->revision_id == IPS_REVID_TROMBONE64)
6715                                 udelay(25);     /* 25 us */
6716
6717                         writeb(0xFF, ha->mem_ptr + IPS_REG_FLDP);
6718                         if (ha->revision_id == IPS_REVID_TROMBONE64)
6719                                 udelay(25);     /* 25 us */
6720
6721                         return (1);
6722                 }
6723
6724                 /* check the status */
6725                 if (status & 0x18) {
6726                         /* programming error */
6727                         writel(0, ha->mem_ptr + IPS_REG_FLAP);
6728                         if (ha->revision_id == IPS_REVID_TROMBONE64)
6729                                 udelay(25);     /* 25 us */
6730
6731                         writeb(0xFF, ha->mem_ptr + IPS_REG_FLDP);
6732                         if (ha->revision_id == IPS_REVID_TROMBONE64)
6733                                 udelay(25);     /* 25 us */
6734
6735                         return (1);
6736                 }
6737         }                       /* end for */
6738
6739         /* Enable reading */
6740         writel(0, ha->mem_ptr + IPS_REG_FLAP);
6741         if (ha->revision_id == IPS_REVID_TROMBONE64)
6742                 udelay(25);     /* 25 us */
6743
6744         writeb(0xFF, ha->mem_ptr + IPS_REG_FLDP);
6745         if (ha->revision_id == IPS_REVID_TROMBONE64)
6746                 udelay(25);     /* 25 us */
6747
6748         return (0);
6749 }
6750
6751 /****************************************************************************/
6752 /*                                                                          */
6753 /* Routine Name: ips_verify_bios                                            */
6754 /*                                                                          */
6755 /* Routine Description:                                                     */
6756 /*   Verify the BIOS on the adapter                                         */
6757 /*                                                                          */
6758 /****************************************************************************/
6759 static int
6760 ips_verify_bios(ips_ha_t * ha, char *buffer, uint32_t buffersize,
6761                 uint32_t offset)
6762 {
6763         uint8_t checksum;
6764         int i;
6765
6766         METHOD_TRACE("ips_verify_bios", 1);
6767
6768         /* test 1st byte */
6769         outl(0, ha->io_addr + IPS_REG_FLAP);
6770         if (ha->revision_id == IPS_REVID_TROMBONE64)
6771                 udelay(25);     /* 25 us */
6772
6773         if (inb(ha->io_addr + IPS_REG_FLDP) != 0x55)
6774                 return (1);
6775
6776         outl(cpu_to_le32(1), ha->io_addr + IPS_REG_FLAP);
6777         if (ha->revision_id == IPS_REVID_TROMBONE64)
6778                 udelay(25);     /* 25 us */
6779         if (inb(ha->io_addr + IPS_REG_FLDP) != 0xAA)
6780                 return (1);
6781
6782         checksum = 0xff;
6783         for (i = 2; i < buffersize; i++) {
6784
6785                 outl(cpu_to_le32(i + offset), ha->io_addr + IPS_REG_FLAP);
6786                 if (ha->revision_id == IPS_REVID_TROMBONE64)
6787                         udelay(25);     /* 25 us */
6788
6789                 checksum = (uint8_t) checksum + inb(ha->io_addr + IPS_REG_FLDP);
6790         }
6791
6792         if (checksum != 0)
6793                 /* failure */
6794                 return (1);
6795         else
6796                 /* success */
6797                 return (0);
6798 }
6799
6800 /****************************************************************************/
6801 /*                                                                          */
6802 /* Routine Name: ips_verify_bios_memio                                      */
6803 /*                                                                          */
6804 /* Routine Description:                                                     */
6805 /*   Verify the BIOS on the adapter                                         */
6806 /*                                                                          */
6807 /****************************************************************************/
6808 static int
6809 ips_verify_bios_memio(ips_ha_t * ha, char *buffer, uint32_t buffersize,
6810                       uint32_t offset)
6811 {
6812         uint8_t checksum;
6813         int i;
6814
6815         METHOD_TRACE("ips_verify_bios_memio", 1);
6816
6817         /* test 1st byte */
6818         writel(0, ha->mem_ptr + IPS_REG_FLAP);
6819         if (ha->revision_id == IPS_REVID_TROMBONE64)
6820                 udelay(25);     /* 25 us */
6821
6822         if (readb(ha->mem_ptr + IPS_REG_FLDP) != 0x55)
6823                 return (1);
6824
6825         writel(1, ha->mem_ptr + IPS_REG_FLAP);
6826         if (ha->revision_id == IPS_REVID_TROMBONE64)
6827                 udelay(25);     /* 25 us */
6828         if (readb(ha->mem_ptr + IPS_REG_FLDP) != 0xAA)
6829                 return (1);
6830
6831         checksum = 0xff;
6832         for (i = 2; i < buffersize; i++) {
6833
6834                 writel(i + offset, ha->mem_ptr + IPS_REG_FLAP);
6835                 if (ha->revision_id == IPS_REVID_TROMBONE64)
6836                         udelay(25);     /* 25 us */
6837
6838                 checksum =
6839                     (uint8_t) checksum + readb(ha->mem_ptr + IPS_REG_FLDP);
6840         }
6841
6842         if (checksum != 0)
6843                 /* failure */
6844                 return (1);
6845         else
6846                 /* success */
6847                 return (0);
6848 }
6849
6850 /*---------------------------------------------------------------------------*/
6851 /*   Routine Name: ips_version_check                                         */
6852 /*                                                                           */
6853 /*   Dependencies:                                                           */
6854 /*     Assumes that ips_read_adapter_status() is called first filling in     */
6855 /*     the data for SubSystem Parameters.                                    */
6856 /*     Called from ips_write_driver_status() so it also assumes NVRAM Page 5 */
6857 /*     Data is available.                                                    */
6858 /*                                                                           */
6859 /*---------------------------------------------------------------------------*/
6860 static void
6861 ips_version_check(ips_ha_t * ha, int intr)
6862 {
6863         IPS_VERSION_DATA *VersionInfo;
6864         uint8_t FirmwareVersion[IPS_COMPAT_ID_LENGTH + 1];
6865         uint8_t BiosVersion[IPS_COMPAT_ID_LENGTH + 1];
6866         int MatchError;
6867         int rc;
6868         char BiosString[10];
6869         char FirmwareString[10];
6870
6871         METHOD_TRACE("ips_version_check", 1);
6872
6873         VersionInfo = ( IPS_VERSION_DATA * ) ha->ioctl_data;
6874
6875         memset(FirmwareVersion, 0, IPS_COMPAT_ID_LENGTH + 1);
6876         memset(BiosVersion, 0, IPS_COMPAT_ID_LENGTH + 1);
6877
6878         /* Get the Compatible BIOS Version from NVRAM Page 5 */
6879         memcpy(BiosVersion, ha->nvram->BiosCompatibilityID,
6880                IPS_COMPAT_ID_LENGTH);
6881
6882         rc = IPS_FAILURE;
6883         if (ha->subsys->param[4] & IPS_GET_VERSION_SUPPORT) {   /* If Versioning is Supported */
6884                 /* Get the Version Info with a Get Version Command */
6885                 memset( VersionInfo, 0, sizeof (IPS_VERSION_DATA));
6886                 rc = ips_get_version_info(ha, ha->ioctl_busaddr, intr);
6887                 if (rc == IPS_SUCCESS)
6888                         memcpy(FirmwareVersion, VersionInfo->compatibilityId,
6889                                IPS_COMPAT_ID_LENGTH);
6890         }
6891
6892         if (rc != IPS_SUCCESS) {        /* If Data Not Obtainable from a GetVersion Command */
6893                 /* Get the Firmware Version from Enquiry Data */
6894                 memcpy(FirmwareVersion, ha->enq->CodeBlkVersion,
6895                        IPS_COMPAT_ID_LENGTH);
6896         }
6897
6898         /* printk(KERN_WARNING "Adapter's BIOS Version  = %s\n", BiosVersion);          */
6899         /* printk(KERN_WARNING "BIOS Compatible Version = %s\n", IPS_COMPAT_BIOS);      */
6900         /* printk(KERN_WARNING "Adapter's Firmware Version  = %s\n", FirmwareVersion);  */
6901         /* printk(KERN_WARNING "Firmware Compatible Version = %s \n", Compatable[ ha->nvram->adapter_type ]); */
6902
6903         MatchError = 0;
6904
6905         if (strncmp
6906             (FirmwareVersion, Compatable[ha->nvram->adapter_type],
6907              IPS_COMPAT_ID_LENGTH) != 0)
6908                 MatchError = 1;
6909
6910         if (strncmp(BiosVersion, IPS_COMPAT_BIOS, IPS_COMPAT_ID_LENGTH) != 0)
6911                 MatchError = 1;
6912
6913         ha->nvram->versioning = 1;      /* Indicate the Driver Supports Versioning */
6914
6915         if (MatchError) {
6916                 ha->nvram->version_mismatch = 1;
6917                 if (ips_cd_boot == 0) {
6918                         strncpy(&BiosString[0], ha->nvram->bios_high, 4);
6919                         strncpy(&BiosString[4], ha->nvram->bios_low, 4);
6920                         BiosString[8] = 0;
6921
6922                         strncpy(&FirmwareString[0], ha->enq->CodeBlkVersion, 8);
6923                         FirmwareString[8] = 0;
6924
6925                         IPS_PRINTK(KERN_WARNING, ha->pcidev,
6926                                    "Warning ! ! ! ServeRAID Version Mismatch\n");
6927                         IPS_PRINTK(KERN_WARNING, ha->pcidev,
6928                                    "Bios = %s, Firmware = %s, Device Driver = %s%s\n",
6929                                    BiosString, FirmwareString, IPS_VERSION_HIGH,
6930                                    IPS_VERSION_LOW);
6931                         IPS_PRINTK(KERN_WARNING, ha->pcidev,
6932                                    "These levels should match to avoid possible compatibility problems.\n");
6933                 }
6934         } else {
6935                 ha->nvram->version_mismatch = 0;
6936         }
6937
6938         return;
6939 }
6940
6941 /*---------------------------------------------------------------------------*/
6942 /*   Routine Name: ips_get_version_info                                      */
6943 /*                                                                           */
6944 /*   Routine Description:                                                    */
6945 /*     Issue an internal GETVERSION Command                                  */
6946 /*                                                                           */
6947 /*   Return Value:                                                           */
6948 /*     0 if Successful, else non-zero                                        */
6949 /*---------------------------------------------------------------------------*/
6950 static int
6951 ips_get_version_info(ips_ha_t * ha, dma_addr_t Buffer, int intr)
6952 {
6953         ips_scb_t *scb;
6954         int rc;
6955
6956         METHOD_TRACE("ips_get_version_info", 1);
6957
6958         scb = &ha->scbs[ha->max_cmds - 1];
6959
6960         ips_init_scb(ha, scb);
6961
6962         scb->timeout = ips_cmd_timeout;
6963         scb->cdb[0] = IPS_CMD_GET_VERSION_INFO;
6964         scb->cmd.version_info.op_code = IPS_CMD_GET_VERSION_INFO;
6965         scb->cmd.version_info.command_id = IPS_COMMAND_ID(ha, scb);
6966         scb->cmd.version_info.reserved = 0;
6967         scb->cmd.version_info.count = sizeof (IPS_VERSION_DATA);
6968         scb->cmd.version_info.reserved2 = 0;
6969         scb->data_len = sizeof (IPS_VERSION_DATA);
6970         scb->data_busaddr = Buffer;
6971         scb->cmd.version_info.buffer_addr = Buffer;
6972         scb->flags = 0;
6973
6974         /* issue command */
6975         rc = ips_send_wait(ha, scb, ips_cmd_timeout, intr);
6976         return (rc);
6977 }
6978
6979 /****************************************************************************/
6980 /*                                                                          */
6981 /* Routine Name: ips_abort_init                                             */
6982 /*                                                                          */
6983 /* Routine Description:                                                     */
6984 /*   cleanup routine for a failed adapter initialization                    */
6985 /****************************************************************************/
6986 static int
6987 ips_abort_init(ips_ha_t * ha, int index)
6988 {
6989         ha->active = 0;
6990         ips_free(ha);
6991         ips_ha[index] = NULL;
6992         ips_sh[index] = NULL;
6993         return -1;
6994 }
6995
6996 /****************************************************************************/
6997 /*                                                                          */
6998 /* Routine Name: ips_shift_controllers                                      */
6999 /*                                                                          */
7000 /* Routine Description:                                                     */
7001 /*   helper function for ordering adapters                                  */
7002 /****************************************************************************/
7003 static void
7004 ips_shift_controllers(int lowindex, int highindex)
7005 {
7006         ips_ha_t *ha_sav = ips_ha[highindex];
7007         struct Scsi_Host *sh_sav = ips_sh[highindex];
7008         int i;
7009
7010         for (i = highindex; i > lowindex; i--) {
7011                 ips_ha[i] = ips_ha[i - 1];
7012                 ips_sh[i] = ips_sh[i - 1];
7013                 ips_ha[i]->host_num = i;
7014         }
7015         ha_sav->host_num = lowindex;
7016         ips_ha[lowindex] = ha_sav;
7017         ips_sh[lowindex] = sh_sav;
7018 }
7019
7020 /****************************************************************************/
7021 /*                                                                          */
7022 /* Routine Name: ips_order_controllers                                      */
7023 /*                                                                          */
7024 /* Routine Description:                                                     */
7025 /*   place controllers is the "proper" boot order                           */
7026 /****************************************************************************/
7027 static void
7028 ips_order_controllers(void)
7029 {
7030         int i, j, tmp, position = 0;
7031         IPS_NVRAM_P5 *nvram;
7032         if (!ips_ha[0])
7033                 return;
7034         nvram = ips_ha[0]->nvram;
7035
7036         if (nvram->adapter_order[0]) {
7037                 for (i = 1; i <= nvram->adapter_order[0]; i++) {
7038                         for (j = position; j < ips_num_controllers; j++) {
7039                                 switch (ips_ha[j]->ad_type) {
7040                                 case IPS_ADTYPE_SERVERAID6M:
7041                                 case IPS_ADTYPE_SERVERAID7M:
7042                                         if (nvram->adapter_order[i] == 'M') {
7043                                                 ips_shift_controllers(position,
7044                                                                       j);
7045                                                 position++;
7046                                         }
7047                                         break;
7048                                 case IPS_ADTYPE_SERVERAID4L:
7049                                 case IPS_ADTYPE_SERVERAID4M:
7050                                 case IPS_ADTYPE_SERVERAID4MX:
7051                                 case IPS_ADTYPE_SERVERAID4LX:
7052                                         if (nvram->adapter_order[i] == 'N') {
7053                                                 ips_shift_controllers(position,
7054                                                                       j);
7055                                                 position++;
7056                                         }
7057                                         break;
7058                                 case IPS_ADTYPE_SERVERAID6I:
7059                                 case IPS_ADTYPE_SERVERAID5I2:
7060                                 case IPS_ADTYPE_SERVERAID5I1:
7061                                 case IPS_ADTYPE_SERVERAID7k:
7062                                         if (nvram->adapter_order[i] == 'S') {
7063                                                 ips_shift_controllers(position,
7064                                                                       j);
7065                                                 position++;
7066                                         }
7067                                         break;
7068                                 case IPS_ADTYPE_SERVERAID:
7069                                 case IPS_ADTYPE_SERVERAID2:
7070                                 case IPS_ADTYPE_NAVAJO:
7071                                 case IPS_ADTYPE_KIOWA:
7072                                 case IPS_ADTYPE_SERVERAID3L:
7073                                 case IPS_ADTYPE_SERVERAID3:
7074                                 case IPS_ADTYPE_SERVERAID4H:
7075                                         if (nvram->adapter_order[i] == 'A') {
7076                                                 ips_shift_controllers(position,
7077                                                                       j);
7078                                                 position++;
7079                                         }
7080                                         break;
7081                                 default:
7082                                         break;
7083                                 }
7084                         }
7085                 }
7086                 /* if adapter_order[0], then ordering is complete */
7087                 return;
7088         }
7089         /* old bios, use older ordering */
7090         tmp = 0;
7091         for (i = position; i < ips_num_controllers; i++) {
7092                 if (ips_ha[i]->ad_type == IPS_ADTYPE_SERVERAID5I2 ||
7093                     ips_ha[i]->ad_type == IPS_ADTYPE_SERVERAID5I1) {
7094                         ips_shift_controllers(position, i);
7095                         position++;
7096                         tmp = 1;
7097                 }
7098         }
7099         /* if there were no 5I cards, then don't do any extra ordering */
7100         if (!tmp)
7101                 return;
7102         for (i = position; i < ips_num_controllers; i++) {
7103                 if (ips_ha[i]->ad_type == IPS_ADTYPE_SERVERAID4L ||
7104                     ips_ha[i]->ad_type == IPS_ADTYPE_SERVERAID4M ||
7105                     ips_ha[i]->ad_type == IPS_ADTYPE_SERVERAID4LX ||
7106                     ips_ha[i]->ad_type == IPS_ADTYPE_SERVERAID4MX) {
7107                         ips_shift_controllers(position, i);
7108                         position++;
7109                 }
7110         }
7111
7112         return;
7113 }
7114
7115 /****************************************************************************/
7116 /*                                                                          */
7117 /* Routine Name: ips_register_scsi                                          */
7118 /*                                                                          */
7119 /* Routine Description:                                                     */
7120 /*   perform any registration and setup with the scsi layer                 */
7121 /****************************************************************************/
7122 static int
7123 ips_register_scsi(int index)
7124 {
7125         struct Scsi_Host *sh;
7126         ips_ha_t *ha, *oldha = ips_ha[index];
7127         sh = scsi_host_alloc(&ips_driver_template, sizeof (ips_ha_t));
7128         if (!sh) {
7129                 IPS_PRINTK(KERN_WARNING, oldha->pcidev,
7130                            "Unable to register controller with SCSI subsystem\n");
7131                 return -1;
7132         }
7133         ha = IPS_HA(sh);
7134         memcpy(ha, oldha, sizeof (ips_ha_t));
7135         free_irq(oldha->irq, oldha);
7136         /* Install the interrupt handler with the new ha */
7137         if (request_irq(ha->irq, do_ipsintr, SA_SHIRQ, ips_name, ha)) {
7138                 IPS_PRINTK(KERN_WARNING, ha->pcidev,
7139                            "Unable to install interrupt handler\n");
7140                 scsi_host_put(sh);
7141                 return -1;
7142         }
7143
7144         kfree(oldha);
7145         ips_sh[index] = sh;
7146         ips_ha[index] = ha;
7147         IPS_SCSI_SET_DEVICE(sh, ha);
7148
7149         /* Store away needed values for later use */
7150         sh->io_port = ha->io_addr;
7151         sh->n_io_port = ha->io_addr ? 255 : 0;
7152         sh->unique_id = (ha->io_addr) ? ha->io_addr : ha->mem_addr;
7153         sh->irq = ha->irq;
7154         sh->sg_tablesize = sh->hostt->sg_tablesize;
7155         sh->can_queue = sh->hostt->can_queue;
7156         sh->cmd_per_lun = sh->hostt->cmd_per_lun;
7157         sh->unchecked_isa_dma = sh->hostt->unchecked_isa_dma;
7158         sh->use_clustering = sh->hostt->use_clustering;
7159
7160 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,7)
7161         sh->max_sectors = 128;
7162 #endif
7163
7164         sh->max_id = ha->ntargets;
7165         sh->max_lun = ha->nlun;
7166         sh->max_channel = ha->nbus - 1;
7167         sh->can_queue = ha->max_cmds - 1;
7168
7169         IPS_ADD_HOST(sh, NULL);
7170         return 0;
7171 }
7172
7173 /*---------------------------------------------------------------------------*/
7174 /*   Routine Name: ips_remove_device                                         */
7175 /*                                                                           */
7176 /*   Routine Description:                                                    */
7177 /*     Remove one Adapter ( Hot Plugging )                                   */
7178 /*---------------------------------------------------------------------------*/
7179 static void __devexit
7180 ips_remove_device(struct pci_dev *pci_dev)
7181 {
7182         int i;
7183         struct Scsi_Host *sh;
7184         ips_ha_t *ha;
7185
7186         for (i = 0; i < IPS_MAX_ADAPTERS; i++) {
7187                 ha = ips_ha[i];
7188                 if (ha) {
7189                         if ((pci_dev->bus->number == ha->pcidev->bus->number) &&
7190                             (pci_dev->devfn == ha->pcidev->devfn)) {
7191                                 sh = ips_sh[i];
7192                                 ips_release(sh);
7193                         }
7194                 }
7195         }
7196 }
7197
7198 /****************************************************************************/
7199 /*                                                                          */
7200 /* Routine Name: ips_module_init                                            */
7201 /*                                                                          */
7202 /* Routine Description:                                                     */
7203 /*   function called on module load                                         */
7204 /****************************************************************************/
7205 static int __init
7206 ips_module_init(void)
7207 {
7208         if (pci_module_init(&ips_pci_driver) < 0)
7209                 return -ENODEV;
7210         ips_driver_template.module = THIS_MODULE;
7211         ips_order_controllers();
7212         if (IPS_REGISTER_HOSTS(&ips_driver_template)) {
7213                 pci_unregister_driver(&ips_pci_driver);
7214                 return -ENODEV;
7215         }
7216         register_reboot_notifier(&ips_notifier);
7217         return 0;
7218 }
7219
7220 /****************************************************************************/
7221 /*                                                                          */
7222 /* Routine Name: ips_module_exit                                            */
7223 /*                                                                          */
7224 /* Routine Description:                                                     */
7225 /*   function called on module unload                                       */
7226 /****************************************************************************/
7227 static void __exit
7228 ips_module_exit(void)
7229 {
7230         IPS_UNREGISTER_HOSTS(&ips_driver_template);
7231         pci_unregister_driver(&ips_pci_driver);
7232         unregister_reboot_notifier(&ips_notifier);
7233 }
7234
7235 module_init(ips_module_init);
7236 module_exit(ips_module_exit);
7237
7238 /*---------------------------------------------------------------------------*/
7239 /*   Routine Name: ips_insert_device                                         */
7240 /*                                                                           */
7241 /*   Routine Description:                                                    */
7242 /*     Add One Adapter ( Hot Plug )                                          */
7243 /*                                                                           */
7244 /*   Return Value:                                                           */
7245 /*     0 if Successful, else non-zero                                        */
7246 /*---------------------------------------------------------------------------*/
7247 static int __devinit
7248 ips_insert_device(struct pci_dev *pci_dev, const struct pci_device_id *ent)
7249 {
7250         int index;
7251         int rc;
7252
7253         METHOD_TRACE("ips_insert_device", 1);
7254         if (pci_enable_device(pci_dev))
7255                 return -1;
7256
7257         rc = ips_init_phase1(pci_dev, &index);
7258         if (rc == SUCCESS)
7259                 rc = ips_init_phase2(index);
7260
7261         if (ips_hotplug)
7262                 if (ips_register_scsi(index)) {
7263                         ips_free(ips_ha[index]);
7264                         rc = -1;
7265                 }
7266
7267         if (rc == SUCCESS)
7268                 ips_num_controllers++;
7269
7270         ips_next_controller = ips_num_controllers;
7271         return rc;
7272 }
7273
7274 /*---------------------------------------------------------------------------*/
7275 /*   Routine Name: ips_init_phase1                                           */
7276 /*                                                                           */
7277 /*   Routine Description:                                                    */
7278 /*     Adapter Initialization                                                */
7279 /*                                                                           */
7280 /*   Return Value:                                                           */
7281 /*     0 if Successful, else non-zero                                        */
7282 /*---------------------------------------------------------------------------*/
7283 static int
7284 ips_init_phase1(struct pci_dev *pci_dev, int *indexPtr)
7285 {
7286         ips_ha_t *ha;
7287         uint32_t io_addr;
7288         uint32_t mem_addr;
7289         uint32_t io_len;
7290         uint32_t mem_len;
7291         uint8_t revision_id;
7292         uint8_t bus;
7293         uint8_t func;
7294         uint8_t irq;
7295         uint16_t subdevice_id;
7296         int j;
7297         int index;
7298         dma_addr_t dma_address;
7299         char __iomem *ioremap_ptr;
7300         char __iomem *mem_ptr;
7301         uint32_t IsDead;
7302
7303         METHOD_TRACE("ips_init_phase1", 1);
7304         index = IPS_MAX_ADAPTERS;
7305         for (j = 0; j < IPS_MAX_ADAPTERS; j++) {
7306                 if (ips_ha[j] == 0) {
7307                         index = j;
7308                         break;
7309                 }
7310         }
7311
7312         if (index >= IPS_MAX_ADAPTERS)
7313                 return -1;
7314
7315         /* stuff that we get in dev */
7316         irq = pci_dev->irq;
7317         bus = pci_dev->bus->number;
7318         func = pci_dev->devfn;
7319
7320         /* Init MEM/IO addresses to 0 */
7321         mem_addr = 0;
7322         io_addr = 0;
7323         mem_len = 0;
7324         io_len = 0;
7325
7326         for (j = 0; j < 2; j++) {
7327                 if (!pci_resource_start(pci_dev, j))
7328                         break;
7329
7330                 if (pci_resource_flags(pci_dev, j) & IORESOURCE_IO) {
7331                         io_addr = pci_resource_start(pci_dev, j);
7332                         io_len = pci_resource_len(pci_dev, j);
7333                 } else {
7334                         mem_addr = pci_resource_start(pci_dev, j);
7335                         mem_len = pci_resource_len(pci_dev, j);
7336                 }
7337         }
7338
7339         /* setup memory mapped area (if applicable) */
7340         if (mem_addr) {
7341                 uint32_t base;
7342                 uint32_t offs;
7343
7344                 if (!request_mem_region(mem_addr, mem_len, "ips")) {
7345                         IPS_PRINTK(KERN_WARNING, pci_dev,
7346                                    "Couldn't allocate IO Memory space %x len %d.\n",
7347                                    mem_addr, mem_len);
7348                         return -1;
7349                 }
7350
7351                 base = mem_addr & PAGE_MASK;
7352                 offs = mem_addr - base;
7353                 ioremap_ptr = ioremap(base, PAGE_SIZE);
7354                 mem_ptr = ioremap_ptr + offs;
7355         } else {
7356                 ioremap_ptr = NULL;
7357                 mem_ptr = NULL;
7358         }
7359
7360         /* setup I/O mapped area (if applicable) */
7361         if (io_addr) {
7362                 if (!request_region(io_addr, io_len, "ips")) {
7363                         IPS_PRINTK(KERN_WARNING, pci_dev,
7364                                    "Couldn't allocate IO space %x len %d.\n",
7365                                    io_addr, io_len);
7366                         return -1;
7367                 }
7368         }
7369
7370         /* get the revision ID */
7371         if (pci_read_config_byte(pci_dev, PCI_REVISION_ID, &revision_id)) {
7372                 IPS_PRINTK(KERN_WARNING, pci_dev, "Can't get revision id.\n");
7373                 return -1;
7374         }
7375
7376         subdevice_id = pci_dev->subsystem_device;
7377
7378         /* found a controller */
7379         ha = kmalloc(sizeof (ips_ha_t), GFP_KERNEL);
7380         if (ha == NULL) {
7381                 IPS_PRINTK(KERN_WARNING, pci_dev,
7382                            "Unable to allocate temporary ha struct\n");
7383                 return -1;
7384         }
7385
7386         memset(ha, 0, sizeof (ips_ha_t));
7387
7388         ips_sh[index] = NULL;
7389         ips_ha[index] = ha;
7390         ha->active = 1;
7391
7392         /* Store info in HA structure */
7393         ha->irq = irq;
7394         ha->io_addr = io_addr;
7395         ha->io_len = io_len;
7396         ha->mem_addr = mem_addr;
7397         ha->mem_len = mem_len;
7398         ha->mem_ptr = mem_ptr;
7399         ha->ioremap_ptr = ioremap_ptr;
7400         ha->host_num = (uint32_t) index;
7401         ha->revision_id = revision_id;
7402         ha->slot_num = PCI_SLOT(pci_dev->devfn);
7403         ha->device_id = pci_dev->device;
7404         ha->subdevice_id = subdevice_id;
7405         ha->pcidev = pci_dev;
7406
7407         /*
7408          * Set the pci_dev's dma_mask.  Not all adapters support 64bit
7409          * addressing so don't enable it if the adapter can't support
7410          * it!  Also, don't use 64bit addressing if dma addresses
7411          * are guaranteed to be < 4G.
7412          */
7413         if (IPS_ENABLE_DMA64 && IPS_HAS_ENH_SGLIST(ha) &&
7414             !pci_set_dma_mask(ha->pcidev, 0xffffffffffffffffULL)) {
7415                 (ha)->flags |= IPS_HA_ENH_SG;
7416         } else {
7417                 if (pci_set_dma_mask(ha->pcidev, 0xffffffffULL) != 0) {
7418                         printk(KERN_WARNING "Unable to set DMA Mask\n");
7419                         return ips_abort_init(ha, index);
7420                 }
7421         }
7422         if(ips_cd_boot && !ips_FlashData){
7423                 ips_FlashData = pci_alloc_consistent(pci_dev, PAGE_SIZE << 7,
7424                                                      &ips_flashbusaddr);
7425         }
7426
7427         ha->enq = pci_alloc_consistent(pci_dev, sizeof (IPS_ENQ),
7428                                        &ha->enq_busaddr);
7429         if (!ha->enq) {
7430                 IPS_PRINTK(KERN_WARNING, pci_dev,
7431                            "Unable to allocate host inquiry structure\n");
7432                 return ips_abort_init(ha, index);
7433         }
7434
7435         ha->adapt = pci_alloc_consistent(pci_dev, sizeof (IPS_ADAPTER) +
7436                                          sizeof (IPS_IO_CMD), &dma_address);
7437         if (!ha->adapt) {
7438                 IPS_PRINTK(KERN_WARNING, pci_dev,
7439                            "Unable to allocate host adapt & dummy structures\n");
7440                 return ips_abort_init(ha, index);
7441         }
7442         ha->adapt->hw_status_start = dma_address;
7443         ha->dummy = (void *) (ha->adapt + 1);
7444
7445
7446
7447         ha->logical_drive_info = pci_alloc_consistent(pci_dev, sizeof (IPS_LD_INFO), &dma_address);
7448         if (!ha->logical_drive_info) {
7449                 IPS_PRINTK(KERN_WARNING, pci_dev,
7450                            "Unable to allocate logical drive info structure\n");
7451                 return ips_abort_init(ha, index);
7452         }
7453         ha->logical_drive_info_dma_addr = dma_address;
7454
7455
7456         ha->conf = kmalloc(sizeof (IPS_CONF), GFP_KERNEL);
7457
7458         if (!ha->conf) {
7459                 IPS_PRINTK(KERN_WARNING, pci_dev,
7460                            "Unable to allocate host conf structure\n");
7461                 return ips_abort_init(ha, index);
7462         }
7463
7464         ha->nvram = kmalloc(sizeof (IPS_NVRAM_P5), GFP_KERNEL);
7465
7466         if (!ha->nvram) {
7467                 IPS_PRINTK(KERN_WARNING, pci_dev,
7468                            "Unable to allocate host NVRAM structure\n");
7469                 return ips_abort_init(ha, index);
7470         }
7471
7472         ha->subsys = kmalloc(sizeof (IPS_SUBSYS), GFP_KERNEL);
7473
7474         if (!ha->subsys) {
7475                 IPS_PRINTK(KERN_WARNING, pci_dev,
7476                            "Unable to allocate host subsystem structure\n");
7477                 return ips_abort_init(ha, index);
7478         }
7479
7480         /* the ioctl buffer is now used during adapter initialization, so its
7481          * successful allocation is now required */
7482         if (ips_ioctlsize < PAGE_SIZE)
7483                 ips_ioctlsize = PAGE_SIZE;
7484
7485         ha->ioctl_data = pci_alloc_consistent(pci_dev, ips_ioctlsize,
7486                                               &ha->ioctl_busaddr);
7487         ha->ioctl_len = ips_ioctlsize;
7488         if (!ha->ioctl_data) {
7489                 IPS_PRINTK(KERN_WARNING, pci_dev,
7490                            "Unable to allocate IOCTL data\n");
7491                 return ips_abort_init(ha, index);
7492         }
7493
7494         /*
7495          * Setup Functions
7496          */
7497         ips_setup_funclist(ha);
7498
7499         if ((IPS_IS_MORPHEUS(ha)) || (IPS_IS_MARCO(ha))) {
7500                 /* If Morpheus appears dead, reset it */
7501                 IsDead = readl(ha->mem_ptr + IPS_REG_I960_MSG1);
7502                 if (IsDead == 0xDEADBEEF) {
7503                         ips_reset_morpheus(ha);
7504                 }
7505         }
7506
7507         /*
7508          * Initialize the card if it isn't already
7509          */
7510
7511         if (!(*ha->func.isinit) (ha)) {
7512                 if (!(*ha->func.init) (ha)) {
7513                         /*
7514                          * Initialization failed
7515                          */
7516                         IPS_PRINTK(KERN_WARNING, pci_dev,
7517                                    "Unable to initialize controller\n");
7518                         return ips_abort_init(ha, index);
7519                 }
7520         }
7521
7522         *indexPtr = index;
7523         return SUCCESS;
7524 }
7525
7526 /*---------------------------------------------------------------------------*/
7527 /*   Routine Name: ips_init_phase2                                           */
7528 /*                                                                           */
7529 /*   Routine Description:                                                    */
7530 /*     Adapter Initialization Phase 2                                        */
7531 /*                                                                           */
7532 /*   Return Value:                                                           */
7533 /*     0 if Successful, else non-zero                                        */
7534 /*---------------------------------------------------------------------------*/
7535 static int
7536 ips_init_phase2(int index)
7537 {
7538         ips_ha_t *ha;
7539
7540         ha = ips_ha[index];
7541
7542         METHOD_TRACE("ips_init_phase2", 1);
7543         if (!ha->active) {
7544                 ips_ha[index] = NULL;
7545                 return -1;
7546         }
7547
7548         /* Install the interrupt handler */
7549         if (request_irq(ha->irq, do_ipsintr, SA_SHIRQ, ips_name, ha)) {
7550                 IPS_PRINTK(KERN_WARNING, ha->pcidev,
7551                            "Unable to install interrupt handler\n");
7552                 return ips_abort_init(ha, index);
7553         }
7554
7555         /*
7556          * Allocate a temporary SCB for initialization
7557          */
7558         ha->max_cmds = 1;
7559         if (!ips_allocatescbs(ha)) {
7560                 IPS_PRINTK(KERN_WARNING, ha->pcidev,
7561                            "Unable to allocate a CCB\n");
7562                 free_irq(ha->irq, ha);
7563                 return ips_abort_init(ha, index);
7564         }
7565
7566         if (!ips_hainit(ha)) {
7567                 IPS_PRINTK(KERN_WARNING, ha->pcidev,
7568                            "Unable to initialize controller\n");
7569                 free_irq(ha->irq, ha);
7570                 return ips_abort_init(ha, index);
7571         }
7572         /* Free the temporary SCB */
7573         ips_deallocatescbs(ha, 1);
7574
7575         /* allocate CCBs */
7576         if (!ips_allocatescbs(ha)) {
7577                 IPS_PRINTK(KERN_WARNING, ha->pcidev,
7578                            "Unable to allocate CCBs\n");
7579                 free_irq(ha->irq, ha);
7580                 return ips_abort_init(ha, index);
7581         }
7582
7583         return SUCCESS;
7584 }
7585
7586 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,9)
7587 MODULE_LICENSE("GPL");
7588 #endif
7589
7590 MODULE_DESCRIPTION("IBM ServeRAID Adapter Driver " IPS_VER_STRING);
7591
7592 #ifdef MODULE_VERSION
7593 MODULE_VERSION(IPS_VER_STRING);
7594 #endif
7595
7596
7597 /*
7598  * Overrides for Emacs so that we almost follow Linus's tabbing style.
7599  * Emacs will notice this stuff at the end of the file and automatically
7600  * adjust the settings for this buffer only.  This must remain at the end
7601  * of the file.
7602  * ---------------------------------------------------------------------------
7603  * Local variables:
7604  * c-indent-level: 2
7605  * c-brace-imaginary-offset: 0
7606  * c-brace-offset: -2
7607  * c-argdecl-indent: 2
7608  * c-label-offset: -2
7609  * c-continued-statement-offset: 2
7610  * c-continued-brace-offset: 0
7611  * indent-tabs-mode: nil
7612  * tab-width: 8
7613  * End:
7614  */