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 /* 7.12.05  - Remove Version Matching per IBM request                        */
 143 /*****************************************************************************/
 144
 145 /*
 146  * Conditional Compilation directives for this driver:
 147  *
 148  * IPS_DEBUG            - Turn on debugging info
 149  *
 150  * Parameters:
 151  *
 152  * debug:<number>       - Set debug level to <number>
 153  *                        NOTE: only works when IPS_DEBUG compile directive is used.
 154  *       1              - Normal debug messages
 155  *       2              - Verbose debug messages
 156  *       11             - Method trace (non interrupt)
 157  *       12             - Method trace (includes interrupt)
 158  *
 159  * noi2o                - Don't use I2O Queues (ServeRAID 4 only)
 160  * nommap               - Don't use memory mapped I/O
 161  * ioctlsize            - Initial size of the IOCTL buffer
 162  */
 163
 164 #include <asm/io.h>
 165 #include <asm/byteorder.h>
 166 #include <asm/page.h>
 167 #include <linux/stddef.h>
 168 #include <linux/version.h>
 169 #include <linux/string.h>
 170 #include <linux/errno.h>
 171 #include <linux/kernel.h>
 172 #include <linux/ioport.h>
 173 #include <linux/slab.h>
 174 #include <linux/delay.h>
 175 #include <linux/pci.h>
 176 #include <linux/proc_fs.h>
 177 #include <linux/reboot.h>
 178 #include <linux/interrupt.h>
 179
 180 #include <linux/blkdev.h>
 181 #include <linux/types.h>
 182
 183 #include <scsi/sg.h>
 184
 185 #include "scsi.h"
 186
 187 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,5,0)
 188 #include "hosts.h"
 189 #else
 190 #include <scsi/scsi_host.h>
 191 #endif
 192
 193 #include "ips.h"
 194
 195 #include <linux/module.h>
 196
 197 #include <linux/stat.h>
 198 #include <linux/config.h>
 199
 200 #include <linux/spinlock.h>
 201 #include <linux/init.h>
 202
 203 #include <linux/smp.h>
 204
 205 #ifdef MODULE
 206 static char *ips = NULL;
 207 module_param(ips, charp, 0);
 208 #endif
 209
 210 /*
 211  * DRIVER_VER
 212  */
 213 #define IPS_VERSION_HIGH        "7.12"
 214 #define IPS_VERSION_LOW         ".05 "
 215
 216 #if !defined(__i386__) && !defined(__ia64__) && !defined(__x86_64__)
 217 #warning "This driver has only been tested on the x86/ia64/x86_64 platforms"
 218 #endif
 219
 220 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,5,0)
 221 #include <linux/blk.h>
 222 #include "sd.h"
 223 #define IPS_LOCK_SAVE(lock,flags) spin_lock_irqsave(&io_request_lock,flags)
 224 #define IPS_UNLOCK_RESTORE(lock,flags) spin_unlock_irqrestore(&io_request_lock,flags)
 225 #ifndef __devexit_p
 226 #define __devexit_p(x) x
 227 #endif
 228 #else
 229 #define IPS_LOCK_SAVE(lock,flags) do{spin_lock(lock);(void)flags;}while(0)
 230 #define IPS_UNLOCK_RESTORE(lock,flags) do{spin_unlock(lock);(void)flags;}while(0)
 231 #endif
 232
 233 #define IPS_DMA_DIR(scb) ((!scb->scsi_cmd || ips_is_passthru(scb->scsi_cmd) || \
 234                          DMA_NONE == scb->scsi_cmd->sc_data_direction) ? \
 235                          PCI_DMA_BIDIRECTIONAL : \
 236                          scb->scsi_cmd->sc_data_direction)
 237
 238 #ifdef IPS_DEBUG
 239 #define METHOD_TRACE(s, i)    if (ips_debug >= (i+10)) printk(KERN_NOTICE s "\n");
 240 #define DEBUG(i, s)           if (ips_debug >= i) printk(KERN_NOTICE s "\n");
 241 #define DEBUG_VAR(i, s, v...) if (ips_debug >= i) printk(KERN_NOTICE s "\n", v);
 242 #else
 243 #define METHOD_TRACE(s, i)
 244 #define DEBUG(i, s)
 245 #define DEBUG_VAR(i, s, v...)
 246 #endif
 247
 248 /*
 249  * Function prototypes
 250  */
 251 static int ips_detect(struct scsi_host_template *);
 252 static int ips_release(struct Scsi_Host *);
 253 static int ips_eh_abort(Scsi_Cmnd *);
 254 static int ips_eh_reset(Scsi_Cmnd *);
 255 static int ips_queue(Scsi_Cmnd *, void (*)(Scsi_Cmnd *));
 256 static const char *ips_info(struct Scsi_Host *);
 257 static irqreturn_t do_ipsintr(int, void *, struct pt_regs *);
 258 static int ips_hainit(ips_ha_t *);
 259 static int ips_map_status(ips_ha_t *, ips_scb_t *, ips_stat_t *);
 260 static int ips_send_wait(ips_ha_t *, ips_scb_t *, int, int);
 261 static int ips_send_cmd(ips_ha_t *, ips_scb_t *);
 262 static int ips_online(ips_ha_t *, ips_scb_t *);
 263 static int ips_inquiry(ips_ha_t *, ips_scb_t *);
 264 static int ips_rdcap(ips_ha_t *, ips_scb_t *);
 265 static int ips_msense(ips_ha_t *, ips_scb_t *);
 266 static int ips_reqsen(ips_ha_t *, ips_scb_t *);
 267 static int ips_deallocatescbs(ips_ha_t *, int);
 268 static int ips_allocatescbs(ips_ha_t *);
 269 static int ips_reset_copperhead(ips_ha_t *);
 270 static int ips_reset_copperhead_memio(ips_ha_t *);
 271 static int ips_reset_morpheus(ips_ha_t *);
 272 static int ips_issue_copperhead(ips_ha_t *, ips_scb_t *);
 273 static int ips_issue_copperhead_memio(ips_ha_t *, ips_scb_t *);
 274 static int ips_issue_i2o(ips_ha_t *, ips_scb_t *);
 275 static int ips_issue_i2o_memio(ips_ha_t *, ips_scb_t *);
 276 static int ips_isintr_copperhead(ips_ha_t *);
 277 static int ips_isintr_copperhead_memio(ips_ha_t *);
 278 static int ips_isintr_morpheus(ips_ha_t *);
 279 static int ips_wait(ips_ha_t *, int, int);
 280 static int ips_write_driver_status(ips_ha_t *, int);
 281 static int ips_read_adapter_status(ips_ha_t *, int);
 282 static int ips_read_subsystem_parameters(ips_ha_t *, int);
 283 static int ips_read_config(ips_ha_t *, int);
 284 static int ips_clear_adapter(ips_ha_t *, int);
 285 static int ips_readwrite_page5(ips_ha_t *, int, int);
 286 static int ips_init_copperhead(ips_ha_t *);
 287 static int ips_init_copperhead_memio(ips_ha_t *);
 288 static int ips_init_morpheus(ips_ha_t *);
 289 static int ips_isinit_copperhead(ips_ha_t *);
 290 static int ips_isinit_copperhead_memio(ips_ha_t *);
 291 static int ips_isinit_morpheus(ips_ha_t *);
 292 static int ips_erase_bios(ips_ha_t *);
 293 static int ips_program_bios(ips_ha_t *, char *, uint32_t, uint32_t);
 294 static int ips_verify_bios(ips_ha_t *, char *, uint32_t, uint32_t);
 295 static int ips_erase_bios_memio(ips_ha_t *);
 296 static int ips_program_bios_memio(ips_ha_t *, char *, uint32_t, uint32_t);
 297 static int ips_verify_bios_memio(ips_ha_t *, char *, uint32_t, uint32_t);
 298 static int ips_flash_copperhead(ips_ha_t *, ips_passthru_t *, ips_scb_t *);
 299 static int ips_flash_bios(ips_ha_t *, ips_passthru_t *, ips_scb_t *);
 300 static int ips_flash_firmware(ips_ha_t *, ips_passthru_t *, ips_scb_t *);
 301 static void ips_free_flash_copperhead(ips_ha_t * ha);
 302 static void ips_get_bios_version(ips_ha_t *, int);
 303 static void ips_identify_controller(ips_ha_t *);
 304 static void ips_chkstatus(ips_ha_t *, IPS_STATUS *);
 305 static void ips_enable_int_copperhead(ips_ha_t *);
 306 static void ips_enable_int_copperhead_memio(ips_ha_t *);
 307 static void ips_enable_int_morpheus(ips_ha_t *);
 308 static int ips_intr_copperhead(ips_ha_t *);
 309 static int ips_intr_morpheus(ips_ha_t *);
 310 static void ips_next(ips_ha_t *, int);
 311 static void ipsintr_blocking(ips_ha_t *, struct ips_scb *);
 312 static void ipsintr_done(ips_ha_t *, struct ips_scb *);
 313 static void ips_done(ips_ha_t *, ips_scb_t *);
 314 static void ips_free(ips_ha_t *);
 315 static void ips_init_scb(ips_ha_t *, ips_scb_t *);
 316 static void ips_freescb(ips_ha_t *, ips_scb_t *);
 317 static void ips_setup_funclist(ips_ha_t *);
 318 static void ips_statinit(ips_ha_t *);
 319 static void ips_statinit_memio(ips_ha_t *);
 320 static void ips_fix_ffdc_time(ips_ha_t *, ips_scb_t *, time_t);
 321 static void ips_ffdc_reset(ips_ha_t *, int);
 322 static void ips_ffdc_time(ips_ha_t *);
 323 static uint32_t ips_statupd_copperhead(ips_ha_t *);
 324 static uint32_t ips_statupd_copperhead_memio(ips_ha_t *);
 325 static uint32_t ips_statupd_morpheus(ips_ha_t *);
 326 static ips_scb_t *ips_getscb(ips_ha_t *);
 327 static void ips_putq_scb_head(ips_scb_queue_t *, ips_scb_t *);
 328 static void ips_putq_wait_tail(ips_wait_queue_t *, Scsi_Cmnd *);
 329 static void ips_putq_copp_tail(ips_copp_queue_t *,
 330                                       ips_copp_wait_item_t *);
 331 static ips_scb_t *ips_removeq_scb_head(ips_scb_queue_t *);
 332 static ips_scb_t *ips_removeq_scb(ips_scb_queue_t *, ips_scb_t *);
 333 static Scsi_Cmnd *ips_removeq_wait_head(ips_wait_queue_t *);
 334 static Scsi_Cmnd *ips_removeq_wait(ips_wait_queue_t *, Scsi_Cmnd *);
 335 static ips_copp_wait_item_t *ips_removeq_copp(ips_copp_queue_t *,
 336                                                      ips_copp_wait_item_t *);
 337 static ips_copp_wait_item_t *ips_removeq_copp_head(ips_copp_queue_t *);
 338
 339 static int ips_is_passthru(Scsi_Cmnd *);
 340 static int ips_make_passthru(ips_ha_t *, Scsi_Cmnd *, ips_scb_t *, int);
 341 static int ips_usrcmd(ips_ha_t *, ips_passthru_t *, ips_scb_t *);
 342 static void ips_cleanup_passthru(ips_ha_t *, ips_scb_t *);
 343 static void ips_scmd_buf_write(Scsi_Cmnd * scmd, void *data,
 344                                unsigned int count);
 345 static void ips_scmd_buf_read(Scsi_Cmnd * scmd, void *data, unsigned int count);
 346
 347 static int ips_proc_info(struct Scsi_Host *, char *, char **, off_t, int, int);
 348 static int ips_host_info(ips_ha_t *, char *, off_t, int);
 349 static void copy_mem_info(IPS_INFOSTR *, char *, int);
 350 static int copy_info(IPS_INFOSTR *, char *, ...);
 351 static int ips_abort_init(ips_ha_t * ha, int index);
 352 static int ips_init_phase2(int index);
 353
 354 static int ips_init_phase1(struct pci_dev *pci_dev, int *indexPtr);
 355 static int ips_register_scsi(int index);
 356
 357 static int  ips_poll_for_flush_complete(ips_ha_t * ha);
 358 static void ips_flush_and_reset(ips_ha_t *ha);
 359
 360 /*
 361  * global variables
 362  */
 363 static const char ips_name[] = "ips";
 364 static struct Scsi_Host *ips_sh[IPS_MAX_ADAPTERS];      /* Array of host controller structures */
 365 static ips_ha_t *ips_ha[IPS_MAX_ADAPTERS];      /* Array of HA structures */
 366 static unsigned int ips_next_controller;
 367 static unsigned int ips_num_controllers;
 368 static unsigned int ips_released_controllers;
 369 static int ips_hotplug;
 370 static int ips_cmd_timeout = 60;
 371 static int ips_reset_timeout = 60 * 5;
 372 static int ips_force_memio = 1;         /* Always use Memory Mapped I/O    */
 373 static int ips_force_i2o = 1;   /* Always use I2O command delivery */
 374 static int ips_ioctlsize = IPS_IOCTL_SIZE;      /* Size of the ioctl buffer        */
 375 static int ips_cd_boot;                 /* Booting from Manager CD         */
 376 static char *ips_FlashData = NULL;      /* CD Boot - Flash Data Buffer      */
 377 static dma_addr_t ips_flashbusaddr;
 378 static long ips_FlashDataInUse;         /* CD Boot - Flash Data In Use Flag */
 379 static uint32_t MaxLiteCmds = 32;       /* Max Active Cmds for a Lite Adapter */
 380 static struct scsi_host_template ips_driver_template = {
 381         .detect                 = ips_detect,
 382         .release                = ips_release,
 383         .info                   = ips_info,
 384         .queuecommand           = ips_queue,
 385         .eh_abort_handler       = ips_eh_abort,
 386         .eh_host_reset_handler  = ips_eh_reset,
 387         .proc_name              = "ips",
 388 #if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 389         .proc_info              = ips_proc_info,
 390         .slave_configure        = ips_slave_configure,
 391 #else
 392         .proc_info              = ips_proc24_info,
 393         .select_queue_depths    = ips_select_queue_depth,
 394 #endif
 395         .bios_param             = ips_biosparam,
 396         .this_id                = -1,
 397         .sg_tablesize           = IPS_MAX_SG,
 398         .cmd_per_lun            = 3,
 399         .use_clustering         = ENABLE_CLUSTERING,
 400 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
 401         .use_new_eh_code        = 1,
 402 #endif
 403 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,20)  &&  LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
 404     .highmem_io          = 1,
 405 #endif
 406 };
 407
 408
 409 /* This table describes all ServeRAID Adapters */
 410 static struct  pci_device_id  ips_pci_table[] = {
 411         { 0x1014, 0x002E, PCI_ANY_ID, PCI_ANY_ID, 0, 0 },
 412         { 0x1014, 0x01BD, PCI_ANY_ID, PCI_ANY_ID, 0, 0 },
 413         { 0x9005, 0x0250, PCI_ANY_ID, PCI_ANY_ID, 0, 0 },
 414         { 0, }
 415 };
 416
 417 MODULE_DEVICE_TABLE( pci, ips_pci_table );
 418
 419 static char ips_hot_plug_name[] = "ips";
 420
 421 static int __devinit  ips_insert_device(struct pci_dev *pci_dev, const struct pci_device_id *ent);
 422 static void __devexit ips_remove_device(struct pci_dev *pci_dev);
 423
 424 static struct pci_driver ips_pci_driver = {
 425         .name           = ips_hot_plug_name,
 426         .id_table       = ips_pci_table,
 427         .probe          = ips_insert_device,
 428         .remove         = __devexit_p(ips_remove_device),
 429 };
 430
 431
 432 /*
 433  * Necessary forward function protoypes
 434  */
 435 static int ips_halt(struct notifier_block *nb, ulong event, void *buf);
 436
 437 #define MAX_ADAPTER_NAME 15
 438
 439 static char ips_adapter_name[][30] = {
 440         "ServeRAID",
 441         "ServeRAID II",
 442         "ServeRAID on motherboard",
 443         "ServeRAID on motherboard",
 444         "ServeRAID 3H",
 445         "ServeRAID 3L",
 446         "ServeRAID 4H",
 447         "ServeRAID 4M",
 448         "ServeRAID 4L",
 449         "ServeRAID 4Mx",
 450         "ServeRAID 4Lx",
 451         "ServeRAID 5i",
 452         "ServeRAID 5i",
 453         "ServeRAID 6M",
 454         "ServeRAID 6i",
 455         "ServeRAID 7t",
 456         "ServeRAID 7k",
 457         "ServeRAID 7M"
 458 };
 459
 460 static struct notifier_block ips_notifier = {
 461         ips_halt, NULL, 0
 462 };
 463
 464 /*
 465  * Direction table
 466  */
 467 static char ips_command_direction[] = {
 468         IPS_DATA_NONE, IPS_DATA_NONE, IPS_DATA_IN, IPS_DATA_IN, IPS_DATA_OUT,
 469         IPS_DATA_IN, IPS_DATA_IN, IPS_DATA_OUT, IPS_DATA_IN, IPS_DATA_UNK,
 470         IPS_DATA_OUT, IPS_DATA_OUT, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
 471         IPS_DATA_IN, IPS_DATA_NONE, IPS_DATA_NONE, IPS_DATA_IN, IPS_DATA_OUT,
 472         IPS_DATA_IN, IPS_DATA_OUT, IPS_DATA_NONE, IPS_DATA_NONE, IPS_DATA_OUT,
 473         IPS_DATA_NONE, IPS_DATA_IN, IPS_DATA_NONE, IPS_DATA_IN, IPS_DATA_OUT,
 474         IPS_DATA_NONE, IPS_DATA_UNK, IPS_DATA_IN, IPS_DATA_UNK, IPS_DATA_IN,
 475         IPS_DATA_UNK, IPS_DATA_OUT, IPS_DATA_IN, IPS_DATA_UNK, IPS_DATA_UNK,
 476         IPS_DATA_IN, IPS_DATA_IN, IPS_DATA_OUT, IPS_DATA_NONE, IPS_DATA_UNK,
 477         IPS_DATA_IN, IPS_DATA_OUT, IPS_DATA_OUT, IPS_DATA_OUT, IPS_DATA_OUT,
 478         IPS_DATA_OUT, IPS_DATA_NONE, IPS_DATA_IN, IPS_DATA_NONE, IPS_DATA_NONE,
 479         IPS_DATA_IN, IPS_DATA_OUT, IPS_DATA_OUT, IPS_DATA_OUT, IPS_DATA_OUT,
 480         IPS_DATA_IN, IPS_DATA_OUT, IPS_DATA_IN, IPS_DATA_OUT, IPS_DATA_OUT,
 481         IPS_DATA_OUT, IPS_DATA_IN, IPS_DATA_IN, IPS_DATA_IN, IPS_DATA_NONE,
 482         IPS_DATA_UNK, IPS_DATA_NONE, IPS_DATA_NONE, IPS_DATA_NONE, IPS_DATA_UNK,
 483         IPS_DATA_NONE, IPS_DATA_OUT, IPS_DATA_IN, IPS_DATA_UNK, IPS_DATA_UNK,
 484         IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
 485         IPS_DATA_OUT, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
 486         IPS_DATA_IN, IPS_DATA_UNK, IPS_DATA_UNK, 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_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
 489         IPS_DATA_UNK, 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_NONE, IPS_DATA_NONE, IPS_DATA_UNK, IPS_DATA_IN, IPS_DATA_NONE,
 502         IPS_DATA_OUT, IPS_DATA_UNK, IPS_DATA_NONE, IPS_DATA_UNK, IPS_DATA_OUT,
 503         IPS_DATA_OUT, IPS_DATA_OUT, IPS_DATA_OUT, IPS_DATA_OUT, IPS_DATA_NONE,
 504         IPS_DATA_UNK, IPS_DATA_IN, IPS_DATA_OUT, IPS_DATA_IN, IPS_DATA_IN,
 505         IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
 506         IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
 507         IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK,
 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_OUT,
 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_UNK,
 518         IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK, IPS_DATA_UNK
 519 };
 520
 521
 522 /****************************************************************************/
 523 /*                                                                          */
 524 /* Routine Name: ips_setup                                                  */
 525 /*                                                                          */
 526 /* Routine Description:                                                     */
 527 /*                                                                          */
 528 /*   setup parameters to the driver                                         */
 529 /*                                                                          */
 530 /****************************************************************************/
 531 static int
 532 ips_setup(char *ips_str)
 533 {
 534
 535         int i;
 536         char *key;
 537         char *value;
 538         IPS_OPTION options[] = {
 539                 {"noi2o", &ips_force_i2o, 0},
 540                 {"nommap", &ips_force_memio, 0},
 541                 {"ioctlsize", &ips_ioctlsize, IPS_IOCTL_SIZE},
 542                 {"cdboot", &ips_cd_boot, 0},
 543                 {"maxcmds", &MaxLiteCmds, 32},
 544         };
 545
 546         /* Don't use strtok() anymore ( if 2.4 Kernel or beyond ) */
 547         /* Search for value */
 548         while ((key = strsep(&ips_str, ",."))) {
 549                 if (!*key)
 550                         continue;
 551                 value = strchr(key, ':');
 552                 if (value)
 553                         *value++ = '\0';
 554                 /*
 555                  * We now have key/value pairs.
 556                  * Update the variables
 557                  */
 558                 for (i = 0; i < (sizeof (options) / sizeof (options[0])); i++) {
 559                         if (strnicmp
 560                             (key, options[i].option_name,
 561                              strlen(options[i].option_name)) == 0) {
 562                                 if (value)
 563                                         *options[i].option_flag =
 564                                             simple_strtoul(value, NULL, 0);
 565                                 else
 566                                         *options[i].option_flag =
 567                                             options[i].option_value;
 568                                 break;
 569                         }
 570                 }
 571         }
 572
 573         return (1);
 574 }
 575
 576 __setup("ips=", ips_setup);
 577
 578 /****************************************************************************/
 579 /*                                                                          */
 580 /* Routine Name: ips_detect                                                 */
 581 /*                                                                          */
 582 /* Routine Description:                                                     */
 583 /*                                                                          */
 584 /*   Detect and initialize the driver                                       */
 585 /*                                                                          */
 586 /* NOTE: this routine is called under the io_request_lock spinlock          */
 587 /*                                                                          */
 588 /****************************************************************************/
 589 static int
 590 ips_detect(struct scsi_host_template * SHT)
 591 {
 592         int i;
 593
 594         METHOD_TRACE("ips_detect", 1);
 595
 596 #ifdef MODULE
 597         if (ips)
 598                 ips_setup(ips);
 599 #endif
 600
 601         for (i = 0; i < ips_num_controllers; i++) {
 602                 if (ips_register_scsi(i))
 603                         ips_free(ips_ha[i]);
 604                 ips_released_controllers++;
 605         }
 606         ips_hotplug = 1;
 607         return (ips_num_controllers);
 608 }
 609
 610 /****************************************************************************/
 611 /*   configure the function pointers to use the functions that will work    */
 612 /*   with the found version of the adapter                                  */
 613 /****************************************************************************/
 614 static void
 615 ips_setup_funclist(ips_ha_t * ha)
 616 {
 617
 618         /*
 619          * Setup Functions
 620          */
 621         if (IPS_IS_MORPHEUS(ha) || IPS_IS_MARCO(ha)) {
 622                 /* morpheus / marco / sebring */
 623                 ha->func.isintr = ips_isintr_morpheus;
 624                 ha->func.isinit = ips_isinit_morpheus;
 625                 ha->func.issue = ips_issue_i2o_memio;
 626                 ha->func.init = ips_init_morpheus;
 627                 ha->func.statupd = ips_statupd_morpheus;
 628                 ha->func.reset = ips_reset_morpheus;
 629                 ha->func.intr = ips_intr_morpheus;
 630                 ha->func.enableint = ips_enable_int_morpheus;
 631         } else if (IPS_USE_MEMIO(ha)) {
 632                 /* copperhead w/MEMIO */
 633                 ha->func.isintr = ips_isintr_copperhead_memio;
 634                 ha->func.isinit = ips_isinit_copperhead_memio;
 635                 ha->func.init = ips_init_copperhead_memio;
 636                 ha->func.statupd = ips_statupd_copperhead_memio;
 637                 ha->func.statinit = ips_statinit_memio;
 638                 ha->func.reset = ips_reset_copperhead_memio;
 639                 ha->func.intr = ips_intr_copperhead;
 640                 ha->func.erasebios = ips_erase_bios_memio;
 641                 ha->func.programbios = ips_program_bios_memio;
 642                 ha->func.verifybios = ips_verify_bios_memio;
 643                 ha->func.enableint = ips_enable_int_copperhead_memio;
 644                 if (IPS_USE_I2O_DELIVER(ha))
 645                         ha->func.issue = ips_issue_i2o_memio;
 646                 else
 647                         ha->func.issue = ips_issue_copperhead_memio;
 648         } else {
 649                 /* copperhead */
 650                 ha->func.isintr = ips_isintr_copperhead;
 651                 ha->func.isinit = ips_isinit_copperhead;
 652                 ha->func.init = ips_init_copperhead;
 653                 ha->func.statupd = ips_statupd_copperhead;
 654                 ha->func.statinit = ips_statinit;
 655                 ha->func.reset = ips_reset_copperhead;
 656                 ha->func.intr = ips_intr_copperhead;
 657                 ha->func.erasebios = ips_erase_bios;
 658                 ha->func.programbios = ips_program_bios;
 659                 ha->func.verifybios = ips_verify_bios;
 660                 ha->func.enableint = ips_enable_int_copperhead;
 661
 662                 if (IPS_USE_I2O_DELIVER(ha))
 663                         ha->func.issue = ips_issue_i2o;
 664                 else
 665                         ha->func.issue = ips_issue_copperhead;
 666         }
 667 }
 668
 669 /****************************************************************************/
 670 /*                                                                          */
 671 /* Routine Name: ips_release                                                */
 672 /*                                                                          */
 673 /* Routine Description:                                                     */
 674 /*                                                                          */
 675 /*   Remove a driver                                                        */
 676 /*                                                                          */
 677 /****************************************************************************/
 678 static int
 679 ips_release(struct Scsi_Host *sh)
 680 {
 681         ips_scb_t *scb;
 682         ips_ha_t *ha;
 683         int i;
 684
 685         METHOD_TRACE("ips_release", 1);
 686
 687         for (i = 0; i < IPS_MAX_ADAPTERS && ips_sh[i] != sh; i++) ;
 688
 689         if (i == IPS_MAX_ADAPTERS) {
 690                 printk(KERN_WARNING
 691                        "(%s) release, invalid Scsi_Host pointer.\n", ips_name);
 692                 BUG();
 693                 return (FALSE);
 694         }
 695
 696         ha = IPS_HA(sh);
 697
 698         if (!ha)
 699                 return (FALSE);
 700
 701         /* flush the cache on the controller */
 702         scb = &ha->scbs[ha->max_cmds - 1];
 703
 704         ips_init_scb(ha, scb);
 705
 706         scb->timeout = ips_cmd_timeout;
 707         scb->cdb[0] = IPS_CMD_FLUSH;
 708
 709         scb->cmd.flush_cache.op_code = IPS_CMD_FLUSH;
 710         scb->cmd.flush_cache.command_id = IPS_COMMAND_ID(ha, scb);
 711         scb->cmd.flush_cache.state = IPS_NORM_STATE;
 712         scb->cmd.flush_cache.reserved = 0;
 713         scb->cmd.flush_cache.reserved2 = 0;
 714         scb->cmd.flush_cache.reserved3 = 0;
 715         scb->cmd.flush_cache.reserved4 = 0;
 716
 717         IPS_PRINTK(KERN_WARNING, ha->pcidev, "Flushing Cache.\n");
 718
 719         /* send command */
 720         if (ips_send_wait(ha, scb, ips_cmd_timeout, IPS_INTR_ON) == IPS_FAILURE)
 721                 IPS_PRINTK(KERN_WARNING, ha->pcidev, "Incomplete Flush.\n");
 722
 723         IPS_PRINTK(KERN_WARNING, ha->pcidev, "Flushing Complete.\n");
 724
 725         ips_sh[i] = NULL;
 726         ips_ha[i] = NULL;
 727
 728         /* free extra memory */
 729         ips_free(ha);
 730
 731         /* Free I/O Region */
 732         if (ha->io_addr)
 733                 release_region(ha->io_addr, ha->io_len);
 734
 735         /* free IRQ */
 736         free_irq(ha->irq, ha);
 737
 738         IPS_REMOVE_HOST(sh);
 739         scsi_host_put(sh);
 740
 741         ips_released_controllers++;
 742
 743         return (FALSE);
 744 }
 745
 746 /****************************************************************************/
 747 /*                                                                          */
 748 /* Routine Name: ips_halt                                                   */
 749 /*                                                                          */
 750 /* Routine Description:                                                     */
 751 /*                                                                          */
 752 /*   Perform cleanup when the system reboots                                */
 753 /*                                                                          */
 754 /****************************************************************************/
 755 static int
 756 ips_halt(struct notifier_block *nb, ulong event, void *buf)
 757 {
 758         ips_scb_t *scb;
 759         ips_ha_t *ha;
 760         int i;
 761
 762         if ((event != SYS_RESTART) && (event != SYS_HALT) &&
 763             (event != SYS_POWER_OFF))
 764                 return (NOTIFY_DONE);
 765
 766         for (i = 0; i < ips_next_controller; i++) {
 767                 ha = (ips_ha_t *) ips_ha[i];
 768
 769                 if (!ha)
 770                         continue;
 771
 772                 if (!ha->active)
 773                         continue;
 774
 775                 /* flush the cache on the controller */
 776                 scb = &ha->scbs[ha->max_cmds - 1];
 777
 778                 ips_init_scb(ha, scb);
 779
 780                 scb->timeout = ips_cmd_timeout;
 781                 scb->cdb[0] = IPS_CMD_FLUSH;
 782
 783                 scb->cmd.flush_cache.op_code = IPS_CMD_FLUSH;
 784                 scb->cmd.flush_cache.command_id = IPS_COMMAND_ID(ha, scb);
 785                 scb->cmd.flush_cache.state = IPS_NORM_STATE;
 786                 scb->cmd.flush_cache.reserved = 0;
 787                 scb->cmd.flush_cache.reserved2 = 0;
 788                 scb->cmd.flush_cache.reserved3 = 0;
 789                 scb->cmd.flush_cache.reserved4 = 0;
 790
 791                 IPS_PRINTK(KERN_WARNING, ha->pcidev, "Flushing Cache.\n");
 792
 793                 /* send command */
 794                 if (ips_send_wait(ha, scb, ips_cmd_timeout, IPS_INTR_ON) ==
 795                     IPS_FAILURE)
 796                         IPS_PRINTK(KERN_WARNING, ha->pcidev,
 797                                    "Incomplete Flush.\n");
 798                 else
 799                         IPS_PRINTK(KERN_WARNING, ha->pcidev,
 800                                    "Flushing Complete.\n");
 801         }
 802
 803         return (NOTIFY_OK);
 804 }
 805
 806 /****************************************************************************/
 807 /*                                                                          */
 808 /* Routine Name: ips_eh_abort                                               */
 809 /*                                                                          */
 810 /* Routine Description:                                                     */
 811 /*                                                                          */
 812 /*   Abort a command (using the new error code stuff)                       */
 813 /* Note: this routine is called under the io_request_lock                   */
 814 /****************************************************************************/
 815 int
 816 ips_eh_abort(Scsi_Cmnd * SC)
 817 {
 818         ips_ha_t *ha;
 819         ips_copp_wait_item_t *item;
 820         int ret;
 821         unsigned long cpu_flags;
 822         struct Scsi_Host *host;
 823
 824         METHOD_TRACE("ips_eh_abort", 1);
 825
 826         if (!SC)
 827                 return (FAILED);
 828
 829         host = SC->device->host;
 830         ha = (ips_ha_t *) SC->device->host->hostdata;
 831
 832         if (!ha)
 833                 return (FAILED);
 834
 835         if (!ha->active)
 836                 return (FAILED);
 837
 838         IPS_LOCK_SAVE(host->host_lock, cpu_flags);
 839
 840         /* See if the command is on the copp queue */
 841         item = ha->copp_waitlist.head;
 842         while ((item) && (item->scsi_cmd != SC))
 843                 item = item->next;
 844
 845         if (item) {
 846                 /* Found it */
 847                 ips_removeq_copp(&ha->copp_waitlist, item);
 848                 ret = (SUCCESS);
 849
 850                 /* See if the command is on the wait queue */
 851         } else if (ips_removeq_wait(&ha->scb_waitlist, SC)) {
 852                 /* command not sent yet */
 853                 ret = (SUCCESS);
 854         } else {
 855                 /* command must have already been sent */
 856                 ret = (FAILED);
 857         }
 858
 859         IPS_UNLOCK_RESTORE(host->host_lock, cpu_flags);
 860         return ret;
 861 }
 862
 863 /****************************************************************************/
 864 /*                                                                          */
 865 /* Routine Name: ips_eh_reset                                               */
 866 /*                                                                          */
 867 /* Routine Description:                                                     */
 868 /*                                                                          */
 869 /*   Reset the controller (with new eh error code)                          */
 870 /*                                                                          */
 871 /* NOTE: this routine is called under the io_request_lock spinlock          */
 872 /*                                                                          */
 873 /****************************************************************************/
 874 static int
 875 __ips_eh_reset(Scsi_Cmnd * SC)
 876 {
 877         int ret;
 878         int i;
 879         ips_ha_t *ha;
 880         ips_scb_t *scb;
 881         ips_copp_wait_item_t *item;
 882
 883         METHOD_TRACE("ips_eh_reset", 1);
 884
 885 #ifdef NO_IPS_RESET
 886         return (FAILED);
 887 #else
 888
 889         if (!SC) {
 890                 DEBUG(1, "Reset called with NULL scsi command");
 891
 892                 return (FAILED);
 893         }
 894
 895         ha = (ips_ha_t *) SC->device->host->hostdata;
 896
 897         if (!ha) {
 898                 DEBUG(1, "Reset called with NULL ha struct");
 899
 900                 return (FAILED);
 901         }
 902
 903         if (!ha->active)
 904                 return (FAILED);
 905
 906         /* See if the command is on the copp queue */
 907         item = ha->copp_waitlist.head;
 908         while ((item) && (item->scsi_cmd != SC))
 909                 item = item->next;
 910
 911         if (item) {
 912                 /* Found it */
 913                 ips_removeq_copp(&ha->copp_waitlist, item);
 914                 return (SUCCESS);
 915         }
 916
 917         /* See if the command is on the wait queue */
 918         if (ips_removeq_wait(&ha->scb_waitlist, SC)) {
 919                 /* command not sent yet */
 920                 return (SUCCESS);
 921         }
 922
 923         /* An explanation for the casual observer:                              */
 924         /* Part of the function of a RAID controller is automatic error         */
 925         /* detection and recovery.  As such, the only problem that physically   */
 926         /* resetting an adapter will ever fix is when, for some reason,         */
 927         /* the driver is not successfully communicating with the adapter.       */
 928         /* Therefore, we will attempt to flush this adapter.  If that succeeds, */
 929         /* then there's no real purpose in a physical reset. This will complete */
 930         /* much faster and avoids any problems that might be caused by a        */
 931         /* physical reset ( such as having to fail all the outstanding I/O's ). */
 932
 933         if (ha->ioctl_reset == 0) {     /* IF Not an IOCTL Requested Reset */
 934                 scb = &ha->scbs[ha->max_cmds - 1];
 935
 936                 ips_init_scb(ha, scb);
 937
 938                 scb->timeout = ips_cmd_timeout;
 939                 scb->cdb[0] = IPS_CMD_FLUSH;
 940
 941                 scb->cmd.flush_cache.op_code = IPS_CMD_FLUSH;
 942                 scb->cmd.flush_cache.command_id = IPS_COMMAND_ID(ha, scb);
 943                 scb->cmd.flush_cache.state = IPS_NORM_STATE;
 944                 scb->cmd.flush_cache.reserved = 0;
 945                 scb->cmd.flush_cache.reserved2 = 0;
 946                 scb->cmd.flush_cache.reserved3 = 0;
 947                 scb->cmd.flush_cache.reserved4 = 0;
 948
 949                 /* Attempt the flush command */
 950                 ret = ips_send_wait(ha, scb, ips_cmd_timeout, IPS_INTR_IORL);
 951                 if (ret == IPS_SUCCESS) {
 952                         IPS_PRINTK(KERN_NOTICE, ha->pcidev,
 953                                    "Reset Request - Flushed Cache\n");
 954                         return (SUCCESS);
 955                 }
 956         }
 957
 958         /* Either we can't communicate with the adapter or it's an IOCTL request */
 959         /* from a utility.  A physical reset is needed at this point.            */
 960
 961         ha->ioctl_reset = 0;    /* Reset the IOCTL Requested Reset Flag */
 962
 963         /*
 964          * command must have already been sent
 965          * reset the controller
 966          */
 967         IPS_PRINTK(KERN_NOTICE, ha->pcidev, "Resetting controller.\n");
 968         ret = (*ha->func.reset) (ha);
 969
 970         if (!ret) {
 971                 Scsi_Cmnd *scsi_cmd;
 972
 973                 IPS_PRINTK(KERN_NOTICE, ha->pcidev,
 974                            "Controller reset failed - controller now offline.\n");
 975
 976                 /* Now fail all of the active commands */
 977                 DEBUG_VAR(1, "(%s%d) Failing active commands",
 978                           ips_name, ha->host_num);
 979
 980                 while ((scb = ips_removeq_scb_head(&ha->scb_activelist))) {
 981                         scb->scsi_cmd->result = DID_ERROR << 16;
 982                         scb->scsi_cmd->scsi_done(scb->scsi_cmd);
 983                         ips_freescb(ha, scb);
 984                 }
 985
 986                 /* Now fail all of the pending commands */
 987                 DEBUG_VAR(1, "(%s%d) Failing pending commands",
 988                           ips_name, ha->host_num);
 989
 990                 while ((scsi_cmd = ips_removeq_wait_head(&ha->scb_waitlist))) {
 991                         scsi_cmd->result = DID_ERROR;
 992                         scsi_cmd->scsi_done(scsi_cmd);
 993                 }
 994
 995                 ha->active = FALSE;
 996                 return (FAILED);
 997         }
 998
 999         if (!ips_clear_adapter(ha, IPS_INTR_IORL)) {
1000                 Scsi_Cmnd *scsi_cmd;
1001
1002                 IPS_PRINTK(KERN_NOTICE, ha->pcidev,
1003                            "Controller reset failed - controller now offline.\n");
1004
1005                 /* Now fail all of the active commands */
1006                 DEBUG_VAR(1, "(%s%d) Failing active commands",
1007                           ips_name, ha->host_num);
1008
1009                 while ((scb = ips_removeq_scb_head(&ha->scb_activelist))) {
1010                         scb->scsi_cmd->result = DID_ERROR << 16;
1011                         scb->scsi_cmd->scsi_done(scb->scsi_cmd);
1012                         ips_freescb(ha, scb);
1013                 }
1014
1015                 /* Now fail all of the pending commands */
1016                 DEBUG_VAR(1, "(%s%d) Failing pending commands",
1017                           ips_name, ha->host_num);
1018
1019                 while ((scsi_cmd = ips_removeq_wait_head(&ha->scb_waitlist))) {
1020                         scsi_cmd->result = DID_ERROR << 16;
1021                         scsi_cmd->scsi_done(scsi_cmd);
1022                 }
1023
1024                 ha->active = FALSE;
1025                 return (FAILED);
1026         }
1027
1028         /* FFDC */
1029         if (le32_to_cpu(ha->subsys->param[3]) & 0x300000) {
1030                 struct timeval tv;
1031
1032                 do_gettimeofday(&tv);
1033                 ha->last_ffdc = tv.tv_sec;
1034                 ha->reset_count++;
1035                 ips_ffdc_reset(ha, IPS_INTR_IORL);
1036         }
1037
1038         /* Now fail all of the active commands */
1039         DEBUG_VAR(1, "(%s%d) Failing active commands", ips_name, ha->host_num);
1040
1041         while ((scb = ips_removeq_scb_head(&ha->scb_activelist))) {
1042                 scb->scsi_cmd->result =
1043                     (DID_RESET << 16) | (SUGGEST_RETRY << 24);
1044                 scb->scsi_cmd->scsi_done(scb->scsi_cmd);
1045                 ips_freescb(ha, scb);
1046         }
1047
1048         /* Reset DCDB active command bits */
1049         for (i = 1; i < ha->nbus; i++)
1050                 ha->dcdb_active[i - 1] = 0;
1051
1052         /* Reset the number of active IOCTLs */
1053         ha->num_ioctl = 0;
1054
1055         ips_next(ha, IPS_INTR_IORL);
1056
1057         return (SUCCESS);
1058 #endif                          /* NO_IPS_RESET */
1059
1060 }
1061
1062 static int
1063 ips_eh_reset(Scsi_Cmnd * SC)
1064 {
1065         int rc;
1066
1067         spin_lock_irq(SC->device->host->host_lock);
1068         rc = __ips_eh_reset(SC);
1069         spin_unlock_irq(SC->device->host->host_lock);
1070
1071         return rc;
1072 }
1073
1074 /****************************************************************************/
1075 /*                                                                          */
1076 /* Routine Name: ips_queue                                                  */
1077 /*                                                                          */
1078 /* Routine Description:                                                     */
1079 /*                                                                          */
1080 /*   Send a command to the controller                                       */
1081 /*                                                                          */
1082 /* NOTE:                                                                    */
1083 /*    Linux obtains io_request_lock before calling this function            */
1084 /*                                                                          */
1085 /****************************************************************************/
1086 static int
1087 ips_queue(Scsi_Cmnd * SC, void (*done) (Scsi_Cmnd *))
1088 {
1089         ips_ha_t *ha;
1090         ips_passthru_t *pt;
1091
1092         METHOD_TRACE("ips_queue", 1);
1093
1094         ha = (ips_ha_t *) SC->device->host->hostdata;
1095
1096         if (!ha)
1097                 return (1);
1098
1099         if (!ha->active)
1100                 return (DID_ERROR);
1101
1102         if (ips_is_passthru(SC)) {
1103                 if (ha->copp_waitlist.count == IPS_MAX_IOCTL_QUEUE) {
1104                         SC->result = DID_BUS_BUSY << 16;
1105                         done(SC);
1106
1107                         return (0);
1108                 }
1109         } else if (ha->scb_waitlist.count == IPS_MAX_QUEUE) {
1110                 SC->result = DID_BUS_BUSY << 16;
1111                 done(SC);
1112
1113                 return (0);
1114         }
1115
1116         SC->scsi_done = done;
1117
1118         DEBUG_VAR(2, "(%s%d): ips_queue: cmd 0x%X (%d %d %d)",
1119                   ips_name,
1120                   ha->host_num,
1121                   SC->cmnd[0],
1122                   SC->device->channel, SC->device->id, SC->device->lun);
1123
1124         /* Check for command to initiator IDs */
1125         if ((scmd_channel(SC) > 0)
1126             && (scmd_id(SC) == ha->ha_id[scmd_channel(SC)])) {
1127                 SC->result = DID_NO_CONNECT << 16;
1128                 done(SC);
1129
1130                 return (0);
1131         }
1132
1133         if (ips_is_passthru(SC)) {
1134
1135                 ips_copp_wait_item_t *scratch;
1136
1137                 /* A Reset IOCTL is only sent by the boot CD in extreme cases.           */
1138                 /* There can never be any system activity ( network or disk ), but check */
1139                 /* anyway just as a good practice.                                       */
1140                 pt = (ips_passthru_t *) SC->request_buffer;
1141                 if ((pt->CoppCP.cmd.reset.op_code == IPS_CMD_RESET_CHANNEL) &&
1142                     (pt->CoppCP.cmd.reset.adapter_flag == 1)) {
1143                         if (ha->scb_activelist.count != 0) {
1144                                 SC->result = DID_BUS_BUSY << 16;
1145                                 done(SC);
1146                                 return (0);
1147                         }
1148                         ha->ioctl_reset = 1;    /* This reset request is from an IOCTL */
1149                         ips_eh_reset(SC);
1150                         SC->result = DID_OK << 16;
1151                         SC->scsi_done(SC);
1152                         return (0);
1153                 }
1154
1155                 /* allocate space for the scribble */
1156                 scratch = kmalloc(sizeof (ips_copp_wait_item_t), GFP_ATOMIC);
1157
1158                 if (!scratch) {
1159                         SC->result = DID_ERROR << 16;
1160                         done(SC);
1161
1162                         return (0);
1163                 }
1164
1165                 scratch->scsi_cmd = SC;
1166                 scratch->next = NULL;
1167
1168                 ips_putq_copp_tail(&ha->copp_waitlist, scratch);
1169         } else {
1170                 ips_putq_wait_tail(&ha->scb_waitlist, SC);
1171         }
1172
1173         ips_next(ha, IPS_INTR_IORL);
1174
1175         return (0);
1176 }
1177
1178 /****************************************************************************/
1179 /*                                                                          */
1180 /* Routine Name: ips_biosparam                                              */
1181 /*                                                                          */
1182 /* Routine Description:                                                     */
1183 /*                                                                          */
1184 /*   Set bios geometry for the controller                                   */
1185 /*                                                                          */
1186 /****************************************************************************/
1187 static int
1188 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
1189 ips_biosparam(Disk * disk, kdev_t dev, int geom[])
1190 {
1191         ips_ha_t *ha = (ips_ha_t *) disk->device->host->hostdata;
1192         unsigned long capacity = disk->capacity;
1193 #else
1194 ips_biosparam(struct scsi_device *sdev, struct block_device *bdev,
1195               sector_t capacity, int geom[])
1196 {
1197         ips_ha_t *ha = (ips_ha_t *) sdev->host->hostdata;
1198 #endif
1199         int heads;
1200         int sectors;
1201         int cylinders;
1202
1203         METHOD_TRACE("ips_biosparam", 1);
1204
1205         if (!ha)
1206                 /* ?!?! host adater info invalid */
1207                 return (0);
1208
1209         if (!ha->active)
1210                 return (0);
1211
1212         if (!ips_read_adapter_status(ha, IPS_INTR_ON))
1213                 /* ?!?! Enquiry command failed */
1214                 return (0);
1215
1216         if ((capacity > 0x400000) && ((ha->enq->ucMiscFlag & 0x8) == 0)) {
1217                 heads = IPS_NORM_HEADS;
1218                 sectors = IPS_NORM_SECTORS;
1219         } else {
1220                 heads = IPS_COMP_HEADS;
1221                 sectors = IPS_COMP_SECTORS;
1222         }
1223
1224         cylinders = (unsigned long) capacity / (heads * sectors);
1225
1226         DEBUG_VAR(2, "Geometry: heads: %d, sectors: %d, cylinders: %d",
1227                   heads, sectors, cylinders);
1228
1229         geom[0] = heads;
1230         geom[1] = sectors;
1231         geom[2] = cylinders;
1232
1233         return (0);
1234 }
1235
1236 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
1237
1238 /* ips_proc24_info is a wrapper around ips_proc_info *
1239  * for compatibility with the 2.4 scsi parameters    */
1240 static int
1241 ips_proc24_info(char *buffer, char **start, off_t offset, int length,
1242                               int hostno, int func)
1243 {
1244         int i;
1245
1246         for (i = 0; i < ips_next_controller; i++) {
1247                 if (ips_sh[i] && ips_sh[i]->host_no == hostno) {
1248                         return ips_proc_info(ips_sh[i], buffer, start,
1249                                              offset, length, func);
1250                 }
1251         }
1252         return -EINVAL;
1253 }
1254
1255 /****************************************************************************/
1256 /*                                                                          */
1257 /* Routine Name: ips_select_queue_depth                                     */
1258 /*                                                                          */
1259 /* Routine Description:                                                     */
1260 /*                                                                          */
1261 /*   Select queue depths for the devices on the contoller                   */
1262 /*                                                                          */
1263 /****************************************************************************/
1264 static void
1265 ips_select_queue_depth(struct Scsi_Host *host, struct scsi_device * scsi_devs)
1266 {
1267         struct scsi_device *device;
1268         ips_ha_t *ha;
1269         int count = 0;
1270         int min;
1271
1272         ha = IPS_HA(host);
1273         min = ha->max_cmds / 4;
1274
1275         for (device = scsi_devs; device; device = device->next) {
1276                 if (device->host == host) {
1277                         if ((device->channel == 0) && (device->type == 0))
1278                                 count++;
1279                 }
1280         }
1281
1282         for (device = scsi_devs; device; device = device->next) {
1283                 if (device->host == host) {
1284                         if ((device->channel == 0) && (device->type == 0)) {
1285                                 device->queue_depth =
1286                                     (ha->max_cmds - 1) / count;
1287                                 if (device->queue_depth < min)
1288                                         device->queue_depth = min;
1289                         } else {
1290                                 device->queue_depth = 2;
1291                         }
1292
1293                         if (device->queue_depth < 2)
1294                                 device->queue_depth = 2;
1295                 }
1296         }
1297 }
1298
1299 #else
1300 /****************************************************************************/
1301 /*                                                                          */
1302 /* Routine Name: ips_slave_configure                                        */
1303 /*                                                                          */
1304 /* Routine Description:                                                     */
1305 /*                                                                          */
1306 /*   Set queue depths on devices once scan is complete                      */
1307 /*                                                                          */
1308 /****************************************************************************/
1309 static int
1310 ips_slave_configure(struct scsi_device * SDptr)
1311 {
1312         ips_ha_t *ha;
1313         int min;
1314
1315         ha = IPS_HA(SDptr->host);
1316         if (SDptr->tagged_supported && SDptr->type == TYPE_DISK) {
1317                 min = ha->max_cmds / 2;
1318                 if (ha->enq->ucLogDriveCount <= 2)
1319                         min = ha->max_cmds - 1;
1320                 scsi_adjust_queue_depth(SDptr, MSG_ORDERED_TAG, min);
1321         }
1322
1323         SDptr->skip_ms_page_8 = 1;
1324         SDptr->skip_ms_page_3f = 1;
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         IPS_SCSI_INQ_DATA inquiryData;
3503
3504         METHOD_TRACE("ips_map_status", 1);
3505
3506         if (scb->bus) {
3507                 DEBUG_VAR(2,
3508                           "(%s%d) Physical device error (%d %d %d): %x %x, Sense Key: %x, ASC: %x, ASCQ: %x",
3509                           ips_name, ha->host_num,
3510                           scb->scsi_cmd->device->channel,
3511                           scb->scsi_cmd->device->id, scb->scsi_cmd->device->lun,
3512                           scb->basic_status, scb->extended_status,
3513                           scb->extended_status ==
3514                           IPS_ERR_CKCOND ? scb->dcdb.sense_info[2] & 0xf : 0,
3515                           scb->extended_status ==
3516                           IPS_ERR_CKCOND ? scb->dcdb.sense_info[12] : 0,
3517                           scb->extended_status ==
3518                           IPS_ERR_CKCOND ? scb->dcdb.sense_info[13] : 0);
3519         }
3520
3521         /* default driver error */
3522         errcode = DID_ERROR;
3523         device_error = 0;
3524
3525         switch (scb->basic_status & IPS_GSC_STATUS_MASK) {
3526         case IPS_CMD_TIMEOUT:
3527                 errcode = DID_TIME_OUT;
3528                 break;
3529
3530         case IPS_INVAL_OPCO:
3531         case IPS_INVAL_CMD_BLK:
3532         case IPS_INVAL_PARM_BLK:
3533         case IPS_LD_ERROR:
3534         case IPS_CMD_CMPLT_WERROR:
3535                 break;
3536
3537         case IPS_PHYS_DRV_ERROR:
3538                 switch (scb->extended_status) {
3539                 case IPS_ERR_SEL_TO:
3540                         if (scb->bus)
3541                                 errcode = DID_NO_CONNECT;
3542
3543                         break;
3544
3545                 case IPS_ERR_OU_RUN:
3546                         if ((scb->cmd.dcdb.op_code == IPS_CMD_EXTENDED_DCDB) ||
3547                             (scb->cmd.dcdb.op_code ==
3548                              IPS_CMD_EXTENDED_DCDB_SG)) {
3549                                 tapeDCDB = (IPS_DCDB_TABLE_TAPE *) & scb->dcdb;
3550                                 transfer_len = tapeDCDB->transfer_length;
3551                         } else {
3552                                 transfer_len =
3553                                     (uint32_t) scb->dcdb.transfer_length;
3554                         }
3555
3556                         if ((scb->bus) && (transfer_len < scb->data_len)) {
3557                                 /* Underrun - set default to no error */
3558                                 errcode = DID_OK;
3559
3560                                 /* Restrict access to physical DASD */
3561                                 if (scb->scsi_cmd->cmnd[0] == INQUIRY) {
3562                                     ips_scmd_buf_read(scb->scsi_cmd,
3563                                       &inquiryData, sizeof (inquiryData));
3564                                     if ((inquiryData.DeviceType & 0x1f) == TYPE_DISK) {
3565                                         errcode = DID_TIME_OUT;
3566                                         break;
3567                                     }
3568                                 }
3569                         } else
3570                                 errcode = DID_ERROR;
3571
3572                         break;
3573
3574                 case IPS_ERR_RECOVERY:
3575                         /* don't fail recovered errors */
3576                         if (scb->bus)
3577                                 errcode = DID_OK;
3578
3579                         break;
3580
3581                 case IPS_ERR_HOST_RESET:
3582                 case IPS_ERR_DEV_RESET:
3583                         errcode = DID_RESET;
3584                         break;
3585
3586                 case IPS_ERR_CKCOND:
3587                         if (scb->bus) {
3588                                 if ((scb->cmd.dcdb.op_code ==
3589                                      IPS_CMD_EXTENDED_DCDB)
3590                                     || (scb->cmd.dcdb.op_code ==
3591                                         IPS_CMD_EXTENDED_DCDB_SG)) {
3592                                         tapeDCDB =
3593                                             (IPS_DCDB_TABLE_TAPE *) & scb->dcdb;
3594                                         memcpy(scb->scsi_cmd->sense_buffer,
3595                                                tapeDCDB->sense_info,
3596                                                sizeof (scb->scsi_cmd->
3597                                                        sense_buffer));
3598                                 } else {
3599                                         memcpy(scb->scsi_cmd->sense_buffer,
3600                                                scb->dcdb.sense_info,
3601                                                sizeof (scb->scsi_cmd->
3602                                                        sense_buffer));
3603                                 }
3604                                 device_error = 2;       /* check condition */
3605                         }
3606
3607                         errcode = DID_OK;
3608
3609                         break;
3610
3611                 default:
3612                         errcode = DID_ERROR;
3613                         break;
3614
3615                 }               /* end switch */
3616         }                       /* end switch */
3617
3618         scb->scsi_cmd->result = device_error | (errcode << 16);
3619
3620         return (1);
3621 }
3622
3623 /****************************************************************************/
3624 /*                                                                          */
3625 /* Routine Name: ips_send_wait                                              */
3626 /*                                                                          */
3627 /* Routine Description:                                                     */
3628 /*                                                                          */
3629 /*   Send a command to the controller and wait for it to return             */
3630 /*                                                                          */
3631 /*   The FFDC Time Stamp use this function for the callback, but doesn't    */
3632 /*   actually need to wait.                                                 */
3633 /****************************************************************************/
3634 static int
3635 ips_send_wait(ips_ha_t * ha, ips_scb_t * scb, int timeout, int intr)
3636 {
3637         int ret;
3638
3639         METHOD_TRACE("ips_send_wait", 1);
3640
3641         if (intr != IPS_FFDC) { /* Won't be Waiting if this is a Time Stamp */
3642                 ha->waitflag = TRUE;
3643                 ha->cmd_in_progress = scb->cdb[0];
3644         }
3645         scb->callback = ipsintr_blocking;
3646         ret = ips_send_cmd(ha, scb);
3647
3648         if ((ret == IPS_FAILURE) || (ret == IPS_SUCCESS_IMM))
3649                 return (ret);
3650
3651         if (intr != IPS_FFDC)   /* Don't Wait around if this is a Time Stamp */
3652                 ret = ips_wait(ha, timeout, intr);
3653
3654         return (ret);
3655 }
3656
3657 /****************************************************************************/
3658 /*                                                                          */
3659 /* Routine Name: ips_scmd_buf_write                                         */
3660 /*                                                                          */
3661 /* Routine Description:                                                     */
3662 /*  Write data to Scsi_Cmnd request_buffer at proper offsets                */
3663 /****************************************************************************/
3664 static void
3665 ips_scmd_buf_write(Scsi_Cmnd * scmd, void *data, unsigned
3666                    int count)
3667 {
3668         if (scmd->use_sg) {
3669                 int i;
3670                 unsigned int min_cnt, xfer_cnt;
3671                 char *cdata = (char *) data;
3672                 unsigned char *buffer;
3673                 unsigned long flags;
3674                 struct scatterlist *sg = scmd->request_buffer;
3675                 for (i = 0, xfer_cnt = 0;
3676                      (i < scmd->use_sg) && (xfer_cnt < count); i++) {
3677                         min_cnt = min(count - xfer_cnt, sg[i].length);
3678
3679                         /* kmap_atomic() ensures addressability of the data buffer.*/
3680                         /* local_irq_save() protects the KM_IRQ0 address slot.     */
3681                         local_irq_save(flags);
3682                         buffer = kmap_atomic(sg[i].page, KM_IRQ0) + sg[i].offset;
3683                         memcpy(buffer, &cdata[xfer_cnt], min_cnt);
3684                         kunmap_atomic(buffer - sg[i].offset, KM_IRQ0);
3685                         local_irq_restore(flags);
3686
3687                         xfer_cnt += min_cnt;
3688                 }
3689
3690         } else {
3691                 unsigned int min_cnt = min(count, scmd->request_bufflen);
3692                 memcpy(scmd->request_buffer, data, min_cnt);
3693         }
3694 }
3695
3696 /****************************************************************************/
3697 /*                                                                          */
3698 /* Routine Name: ips_scmd_buf_read                                          */
3699 /*                                                                          */
3700 /* Routine Description:                                                     */
3701 /*  Copy data from a Scsi_Cmnd to a new, linear buffer                      */
3702 /****************************************************************************/
3703 static void
3704 ips_scmd_buf_read(Scsi_Cmnd * scmd, void *data, unsigned
3705                   int count)
3706 {
3707         if (scmd->use_sg) {
3708                 int i;
3709                 unsigned int min_cnt, xfer_cnt;
3710                 char *cdata = (char *) data;
3711                 unsigned char *buffer;
3712                 unsigned long flags;
3713                 struct scatterlist *sg = scmd->request_buffer;
3714                 for (i = 0, xfer_cnt = 0;
3715                      (i < scmd->use_sg) && (xfer_cnt < count); i++) {
3716                         min_cnt = min(count - xfer_cnt, sg[i].length);
3717
3718                         /* kmap_atomic() ensures addressability of the data buffer.*/
3719                         /* local_irq_save() protects the KM_IRQ0 address slot.     */
3720                         local_irq_save(flags);
3721                         buffer = kmap_atomic(sg[i].page, KM_IRQ0) + sg[i].offset;
3722                         memcpy(&cdata[xfer_cnt], buffer, min_cnt);
3723                         kunmap_atomic(buffer - sg[i].offset, KM_IRQ0);
3724                         local_irq_restore(flags);
3725
3726                         xfer_cnt += min_cnt;
3727                 }
3728
3729         } else {
3730                 unsigned int min_cnt = min(count, scmd->request_bufflen);
3731                 memcpy(data, scmd->request_buffer, min_cnt);
3732         }
3733 }
3734
3735 /****************************************************************************/
3736 /*                                                                          */
3737 /* Routine Name: ips_send_cmd                                               */
3738 /*                                                                          */
3739 /* Routine Description:                                                     */
3740 /*                                                                          */
3741 /*   Map SCSI commands to ServeRAID commands for logical drives             */
3742 /*                                                                          */
3743 /****************************************************************************/
3744 static int
3745 ips_send_cmd(ips_ha_t * ha, ips_scb_t * scb)
3746 {
3747         int ret;
3748         char *sp;
3749         int device_error;
3750         IPS_DCDB_TABLE_TAPE *tapeDCDB;
3751         int TimeOut;
3752
3753         METHOD_TRACE("ips_send_cmd", 1);
3754
3755         ret = IPS_SUCCESS;
3756
3757         if (!scb->scsi_cmd) {
3758                 /* internal command */
3759
3760                 if (scb->bus > 0) {
3761                         /* Controller commands can't be issued */
3762                         /* to real devices -- fail them        */
3763                         if ((ha->waitflag == TRUE) &&
3764                             (ha->cmd_in_progress == scb->cdb[0])) {
3765                                 ha->waitflag = FALSE;
3766                         }
3767
3768                         return (1);
3769                 }
3770         } else if ((scb->bus == 0) && (!ips_is_passthru(scb->scsi_cmd))) {
3771                 /* command to logical bus -- interpret */
3772                 ret = IPS_SUCCESS_IMM;
3773
3774                 switch (scb->scsi_cmd->cmnd[0]) {
3775                 case ALLOW_MEDIUM_REMOVAL:
3776                 case REZERO_UNIT:
3777                 case ERASE:
3778                 case WRITE_FILEMARKS:
3779                 case SPACE:
3780                         scb->scsi_cmd->result = DID_ERROR << 16;
3781                         break;
3782
3783                 case START_STOP:
3784                         scb->scsi_cmd->result = DID_OK << 16;
3785
3786                 case TEST_UNIT_READY:
3787                 case INQUIRY:
3788                         if (scb->target_id == IPS_ADAPTER_ID) {
3789                                 /*
3790                                  * Either we have a TUR
3791                                  * or we have a SCSI inquiry
3792                                  */
3793                                 if (scb->scsi_cmd->cmnd[0] == TEST_UNIT_READY)
3794                                         scb->scsi_cmd->result = DID_OK << 16;
3795
3796                                 if (scb->scsi_cmd->cmnd[0] == INQUIRY) {
3797                                         IPS_SCSI_INQ_DATA inquiry;
3798
3799                                         memset(&inquiry, 0,
3800                                                sizeof (IPS_SCSI_INQ_DATA));
3801
3802                                         inquiry.DeviceType =
3803                                             IPS_SCSI_INQ_TYPE_PROCESSOR;
3804                                         inquiry.DeviceTypeQualifier =
3805                                             IPS_SCSI_INQ_LU_CONNECTED;
3806                                         inquiry.Version = IPS_SCSI_INQ_REV2;
3807                                         inquiry.ResponseDataFormat =
3808                                             IPS_SCSI_INQ_RD_REV2;
3809                                         inquiry.AdditionalLength = 31;
3810                                         inquiry.Flags[0] =
3811                                             IPS_SCSI_INQ_Address16;
3812                                         inquiry.Flags[1] =
3813                                             IPS_SCSI_INQ_WBus16 |
3814                                             IPS_SCSI_INQ_Sync;
3815                                         strncpy(inquiry.VendorId, "IBM     ",
3816                                                 8);
3817                                         strncpy(inquiry.ProductId,
3818                                                 "SERVERAID       ", 16);
3819                                         strncpy(inquiry.ProductRevisionLevel,
3820                                                 "1.00", 4);
3821
3822                                         ips_scmd_buf_write(scb->scsi_cmd,
3823                                                            &inquiry,
3824                                                            sizeof (inquiry));
3825
3826                                         scb->scsi_cmd->result = DID_OK << 16;
3827                                 }
3828                         } else {
3829                                 scb->cmd.logical_info.op_code = IPS_CMD_GET_LD_INFO;
3830                                 scb->cmd.logical_info.command_id = IPS_COMMAND_ID(ha, scb);
3831                                 scb->cmd.logical_info.reserved = 0;
3832                                 scb->cmd.logical_info.reserved2 = 0;
3833                                 scb->data_len = sizeof (IPS_LD_INFO);
3834                                 scb->data_busaddr = ha->logical_drive_info_dma_addr;
3835                                 scb->flags = 0;
3836                                 scb->cmd.logical_info.buffer_addr = scb->data_busaddr;
3837                                 ret = IPS_SUCCESS;
3838                         }
3839
3840                         break;
3841
3842                 case REQUEST_SENSE:
3843                         ips_reqsen(ha, scb);
3844                         scb->scsi_cmd->result = DID_OK << 16;
3845                         break;
3846
3847                 case READ_6:
3848                 case WRITE_6:
3849                         if (!scb->sg_len) {
3850                                 scb->cmd.basic_io.op_code =
3851                                     (scb->scsi_cmd->cmnd[0] ==
3852                                      READ_6) ? IPS_CMD_READ : IPS_CMD_WRITE;
3853                                 scb->cmd.basic_io.enhanced_sg = 0;
3854                                 scb->cmd.basic_io.sg_addr =
3855                                     cpu_to_le32(scb->data_busaddr);
3856                         } else {
3857                                 scb->cmd.basic_io.op_code =
3858                                     (scb->scsi_cmd->cmnd[0] ==
3859                                      READ_6) ? IPS_CMD_READ_SG :
3860                                     IPS_CMD_WRITE_SG;
3861                                 scb->cmd.basic_io.enhanced_sg =
3862                                     IPS_USE_ENH_SGLIST(ha) ? 0xFF : 0;
3863                                 scb->cmd.basic_io.sg_addr =
3864                                     cpu_to_le32(scb->sg_busaddr);
3865                         }
3866
3867                         scb->cmd.basic_io.segment_4G = 0;
3868                         scb->cmd.basic_io.command_id = IPS_COMMAND_ID(ha, scb);
3869                         scb->cmd.basic_io.log_drv = scb->target_id;
3870                         scb->cmd.basic_io.sg_count = scb->sg_len;
3871
3872                         if (scb->cmd.basic_io.lba)
3873                                 scb->cmd.basic_io.lba =
3874                                     cpu_to_le32(le32_to_cpu
3875                                                 (scb->cmd.basic_io.lba) +
3876                                                 le16_to_cpu(scb->cmd.basic_io.
3877                                                             sector_count));
3878                         else
3879                                 scb->cmd.basic_io.lba =
3880                                     (((scb->scsi_cmd->
3881                                        cmnd[1] & 0x1f) << 16) | (scb->scsi_cmd->
3882                                                                  cmnd[2] << 8) |
3883                                      (scb->scsi_cmd->cmnd[3]));
3884
3885                         scb->cmd.basic_io.sector_count =
3886                             cpu_to_le16(scb->data_len / IPS_BLKSIZE);
3887
3888                         if (le16_to_cpu(scb->cmd.basic_io.sector_count) == 0)
3889                                 scb->cmd.basic_io.sector_count =
3890                                     cpu_to_le16(256);
3891
3892                         ret = IPS_SUCCESS;
3893                         break;
3894
3895                 case READ_10:
3896                 case WRITE_10:
3897                         if (!scb->sg_len) {
3898                                 scb->cmd.basic_io.op_code =
3899                                     (scb->scsi_cmd->cmnd[0] ==
3900                                      READ_10) ? IPS_CMD_READ : IPS_CMD_WRITE;
3901                                 scb->cmd.basic_io.enhanced_sg = 0;
3902                                 scb->cmd.basic_io.sg_addr =
3903                                     cpu_to_le32(scb->data_busaddr);
3904                         } else {
3905                                 scb->cmd.basic_io.op_code =
3906                                     (scb->scsi_cmd->cmnd[0] ==
3907                                      READ_10) ? IPS_CMD_READ_SG :
3908                                     IPS_CMD_WRITE_SG;
3909                                 scb->cmd.basic_io.enhanced_sg =
3910                                     IPS_USE_ENH_SGLIST(ha) ? 0xFF : 0;
3911                                 scb->cmd.basic_io.sg_addr =
3912                                     cpu_to_le32(scb->sg_busaddr);
3913                         }
3914
3915                         scb->cmd.basic_io.segment_4G = 0;
3916                         scb->cmd.basic_io.command_id = IPS_COMMAND_ID(ha, scb);
3917                         scb->cmd.basic_io.log_drv = scb->target_id;
3918                         scb->cmd.basic_io.sg_count = scb->sg_len;
3919
3920                         if (scb->cmd.basic_io.lba)
3921                                 scb->cmd.basic_io.lba =
3922                                     cpu_to_le32(le32_to_cpu
3923                                                 (scb->cmd.basic_io.lba) +
3924                                                 le16_to_cpu(scb->cmd.basic_io.
3925                                                             sector_count));
3926                         else
3927                                 scb->cmd.basic_io.lba =
3928                                     ((scb->scsi_cmd->cmnd[2] << 24) | (scb->
3929                                                                        scsi_cmd->
3930                                                                        cmnd[3]
3931                                                                        << 16) |
3932                                      (scb->scsi_cmd->cmnd[4] << 8) | scb->
3933                                      scsi_cmd->cmnd[5]);
3934
3935                         scb->cmd.basic_io.sector_count =
3936                             cpu_to_le16(scb->data_len / IPS_BLKSIZE);
3937
3938                         if (cpu_to_le16(scb->cmd.basic_io.sector_count) == 0) {
3939                                 /*
3940                                  * This is a null condition
3941                                  * we don't have to do anything
3942                                  * so just return
3943                                  */
3944                                 scb->scsi_cmd->result = DID_OK << 16;
3945                         } else
3946                                 ret = IPS_SUCCESS;
3947
3948                         break;
3949
3950                 case RESERVE:
3951                 case RELEASE:
3952                         scb->scsi_cmd->result = DID_OK << 16;
3953                         break;
3954
3955                 case MODE_SENSE:
3956                         scb->cmd.basic_io.op_code = IPS_CMD_ENQUIRY;
3957                         scb->cmd.basic_io.command_id = IPS_COMMAND_ID(ha, scb);
3958                         scb->cmd.basic_io.segment_4G = 0;
3959                         scb->cmd.basic_io.enhanced_sg = 0;
3960                         scb->data_len = sizeof (*ha->enq);
3961                         scb->cmd.basic_io.sg_addr = ha->enq_busaddr;
3962                         ret = IPS_SUCCESS;
3963                         break;
3964
3965                 case READ_CAPACITY:
3966                         scb->cmd.logical_info.op_code = IPS_CMD_GET_LD_INFO;
3967                         scb->cmd.logical_info.command_id = IPS_COMMAND_ID(ha, scb);
3968                         scb->cmd.logical_info.reserved = 0;
3969                         scb->cmd.logical_info.reserved2 = 0;
3970                         scb->cmd.logical_info.reserved3 = 0;
3971                         scb->data_len = sizeof (IPS_LD_INFO);
3972                         scb->data_busaddr = ha->logical_drive_info_dma_addr;
3973                         scb->flags = 0;
3974                         scb->cmd.logical_info.buffer_addr = scb->data_busaddr;
3975                         ret = IPS_SUCCESS;
3976                         break;
3977
3978                 case SEND_DIAGNOSTIC:
3979                 case REASSIGN_BLOCKS:
3980                 case FORMAT_UNIT:
3981                 case SEEK_10:
3982                 case VERIFY:
3983                 case READ_DEFECT_DATA:
3984                 case READ_BUFFER:
3985                 case WRITE_BUFFER:
3986                         scb->scsi_cmd->result = DID_OK << 16;
3987                         break;
3988
3989                 default:
3990                         /* Set the Return Info to appear like the Command was */
3991                         /* attempted, a Check Condition occurred, and Sense   */
3992                         /* Data indicating an Invalid CDB OpCode is returned. */
3993                         sp = (char *) scb->scsi_cmd->sense_buffer;
3994                         memset(sp, 0, sizeof (scb->scsi_cmd->sense_buffer));
3995
3996                         sp[0] = 0x70;   /* Error Code               */
3997                         sp[2] = ILLEGAL_REQUEST;        /* Sense Key 5 Illegal Req. */
3998                         sp[7] = 0x0A;   /* Additional Sense Length  */
3999                         sp[12] = 0x20;  /* ASC = Invalid OpCode     */
4000                         sp[13] = 0x00;  /* ASCQ                     */
4001
4002                         device_error = 2;       /* Indicate Check Condition */
4003                         scb->scsi_cmd->result = device_error | (DID_OK << 16);
4004                         break;
4005                 }               /* end switch */
4006         }
4007         /* end if */
4008         if (ret == IPS_SUCCESS_IMM)
4009                 return (ret);
4010
4011         /* setup DCDB */
4012         if (scb->bus > 0) {
4013
4014                 /* If we already know the Device is Not there, no need to attempt a Command   */
4015                 /* This also protects an NT FailOver Controller from getting CDB's sent to it */
4016                 if (ha->conf->dev[scb->bus - 1][scb->target_id].ucState == 0) {
4017                         scb->scsi_cmd->result = DID_NO_CONNECT << 16;
4018                         return (IPS_SUCCESS_IMM);
4019                 }
4020
4021                 ha->dcdb_active[scb->bus - 1] |= (1 << scb->target_id);
4022                 scb->cmd.dcdb.command_id = IPS_COMMAND_ID(ha, scb);
4023                 scb->cmd.dcdb.dcdb_address = cpu_to_le32(scb->scb_busaddr +
4024                                                          (unsigned long) &scb->
4025                                                          dcdb -
4026                                                          (unsigned long) scb);
4027                 scb->cmd.dcdb.reserved = 0;
4028                 scb->cmd.dcdb.reserved2 = 0;
4029                 scb->cmd.dcdb.reserved3 = 0;
4030                 scb->cmd.dcdb.segment_4G = 0;
4031                 scb->cmd.dcdb.enhanced_sg = 0;
4032
4033                 TimeOut = scb->scsi_cmd->timeout_per_command;
4034
4035                 if (ha->subsys->param[4] & 0x00100000) {        /* If NEW Tape DCDB is Supported */
4036                         if (!scb->sg_len) {
4037                                 scb->cmd.dcdb.op_code = IPS_CMD_EXTENDED_DCDB;
4038                         } else {
4039                                 scb->cmd.dcdb.op_code =
4040                                     IPS_CMD_EXTENDED_DCDB_SG;
4041                                 scb->cmd.dcdb.enhanced_sg =
4042                                     IPS_USE_ENH_SGLIST(ha) ? 0xFF : 0;
4043                         }
4044
4045                         tapeDCDB = (IPS_DCDB_TABLE_TAPE *) & scb->dcdb; /* Use Same Data Area as Old DCDB Struct */
4046                         tapeDCDB->device_address =
4047                             ((scb->bus - 1) << 4) | scb->target_id;
4048                         tapeDCDB->cmd_attribute |= IPS_DISCONNECT_ALLOWED;
4049                         tapeDCDB->cmd_attribute &= ~IPS_TRANSFER64K;    /* Always Turn OFF 64K Size Flag */
4050
4051                         if (TimeOut) {
4052                                 if (TimeOut < (10 * HZ))
4053                                         tapeDCDB->cmd_attribute |= IPS_TIMEOUT10;       /* TimeOut is 10 Seconds */
4054                                 else if (TimeOut < (60 * HZ))
4055                                         tapeDCDB->cmd_attribute |= IPS_TIMEOUT60;       /* TimeOut is 60 Seconds */
4056                                 else if (TimeOut < (1200 * HZ))
4057                                         tapeDCDB->cmd_attribute |= IPS_TIMEOUT20M;      /* TimeOut is 20 Minutes */
4058                         }
4059
4060                         tapeDCDB->cdb_length = scb->scsi_cmd->cmd_len;
4061                         tapeDCDB->reserved_for_LUN = 0;
4062                         tapeDCDB->transfer_length = scb->data_len;
4063                         if (scb->cmd.dcdb.op_code == IPS_CMD_EXTENDED_DCDB_SG)
4064                                 tapeDCDB->buffer_pointer =
4065                                     cpu_to_le32(scb->sg_busaddr);
4066                         else
4067                                 tapeDCDB->buffer_pointer =
4068                                     cpu_to_le32(scb->data_busaddr);
4069                         tapeDCDB->sg_count = scb->sg_len;
4070                         tapeDCDB->sense_length = sizeof (tapeDCDB->sense_info);
4071                         tapeDCDB->scsi_status = 0;
4072                         tapeDCDB->reserved = 0;
4073                         memcpy(tapeDCDB->scsi_cdb, scb->scsi_cmd->cmnd,
4074                                scb->scsi_cmd->cmd_len);
4075                 } else {
4076                         if (!scb->sg_len) {
4077                                 scb->cmd.dcdb.op_code = IPS_CMD_DCDB;
4078                         } else {
4079                                 scb->cmd.dcdb.op_code = IPS_CMD_DCDB_SG;
4080                                 scb->cmd.dcdb.enhanced_sg =
4081                                     IPS_USE_ENH_SGLIST(ha) ? 0xFF : 0;
4082                         }
4083
4084                         scb->dcdb.device_address =
4085                             ((scb->bus - 1) << 4) | scb->target_id;
4086                         scb->dcdb.cmd_attribute |= IPS_DISCONNECT_ALLOWED;
4087
4088                         if (TimeOut) {
4089                                 if (TimeOut < (10 * HZ))
4090                                         scb->dcdb.cmd_attribute |= IPS_TIMEOUT10;       /* TimeOut is 10 Seconds */
4091                                 else if (TimeOut < (60 * HZ))
4092                                         scb->dcdb.cmd_attribute |= IPS_TIMEOUT60;       /* TimeOut is 60 Seconds */
4093                                 else if (TimeOut < (1200 * HZ))
4094                                         scb->dcdb.cmd_attribute |= IPS_TIMEOUT20M;      /* TimeOut is 20 Minutes */
4095                         }
4096
4097                         scb->dcdb.transfer_length = scb->data_len;
4098                         if (scb->dcdb.cmd_attribute & IPS_TRANSFER64K)
4099                                 scb->dcdb.transfer_length = 0;
4100                         if (scb->cmd.dcdb.op_code == IPS_CMD_DCDB_SG)
4101                                 scb->dcdb.buffer_pointer =
4102                                     cpu_to_le32(scb->sg_busaddr);
4103                         else
4104                                 scb->dcdb.buffer_pointer =
4105                                     cpu_to_le32(scb->data_busaddr);
4106                         scb->dcdb.cdb_length = scb->scsi_cmd->cmd_len;
4107                         scb->dcdb.sense_length = sizeof (scb->dcdb.sense_info);
4108                         scb->dcdb.sg_count = scb->sg_len;
4109                         scb->dcdb.reserved = 0;
4110                         memcpy(scb->dcdb.scsi_cdb, scb->scsi_cmd->cmnd,
4111                                scb->scsi_cmd->cmd_len);
4112                         scb->dcdb.scsi_status = 0;
4113                         scb->dcdb.reserved2[0] = 0;
4114                         scb->dcdb.reserved2[1] = 0;
4115                         scb->dcdb.reserved2[2] = 0;
4116                 }
4117         }
4118
4119         return ((*ha->func.issue) (ha, scb));
4120 }
4121
4122 /****************************************************************************/
4123 /*                                                                          */
4124 /* Routine Name: ips_chk_status                                             */
4125 /*                                                                          */
4126 /* Routine Description:                                                     */
4127 /*                                                                          */
4128 /*   Check the status of commands to logical drives                         */
4129 /*   Assumed to be called with the HA lock                                  */
4130 /****************************************************************************/
4131 static void
4132 ips_chkstatus(ips_ha_t * ha, IPS_STATUS * pstatus)
4133 {
4134         ips_scb_t *scb;
4135         ips_stat_t *sp;
4136         uint8_t basic_status;
4137         uint8_t ext_status;
4138         int errcode;
4139         IPS_SCSI_INQ_DATA inquiryData;
4140
4141         METHOD_TRACE("ips_chkstatus", 1);
4142
4143         scb = &ha->scbs[pstatus->fields.command_id];
4144         scb->basic_status = basic_status =
4145             pstatus->fields.basic_status & IPS_BASIC_STATUS_MASK;
4146         scb->extended_status = ext_status = pstatus->fields.extended_status;
4147
4148         sp = &ha->sp;
4149         sp->residue_len = 0;
4150         sp->scb_addr = (void *) scb;
4151
4152         /* Remove the item from the active queue */
4153         ips_removeq_scb(&ha->scb_activelist, scb);
4154
4155         if (!scb->scsi_cmd)
4156                 /* internal commands are handled in do_ipsintr */
4157                 return;
4158
4159         DEBUG_VAR(2, "(%s%d) ips_chkstatus: cmd 0x%X id %d (%d %d %d)",
4160                   ips_name,
4161                   ha->host_num,
4162                   scb->cdb[0],
4163                   scb->cmd.basic_io.command_id,
4164                   scb->bus, scb->target_id, scb->lun);
4165
4166         if ((scb->scsi_cmd) && (ips_is_passthru(scb->scsi_cmd)))
4167                 /* passthru - just returns the raw result */
4168                 return;
4169
4170         errcode = DID_OK;
4171
4172         if (((basic_status & IPS_GSC_STATUS_MASK) == IPS_CMD_SUCCESS) ||
4173             ((basic_status & IPS_GSC_STATUS_MASK) == IPS_CMD_RECOVERED_ERROR)) {
4174
4175                 if (scb->bus == 0) {
4176                         if ((basic_status & IPS_GSC_STATUS_MASK) ==
4177                             IPS_CMD_RECOVERED_ERROR) {
4178                                 DEBUG_VAR(1,
4179                                           "(%s%d) Recovered Logical Drive Error OpCode: %x, BSB: %x, ESB: %x",
4180                                           ips_name, ha->host_num,
4181                                           scb->cmd.basic_io.op_code,
4182                                           basic_status, ext_status);
4183                         }
4184
4185                         switch (scb->scsi_cmd->cmnd[0]) {
4186                         case ALLOW_MEDIUM_REMOVAL:
4187                         case REZERO_UNIT:
4188                         case ERASE:
4189                         case WRITE_FILEMARKS:
4190                         case SPACE:
4191                                 errcode = DID_ERROR;
4192                                 break;
4193
4194                         case START_STOP:
4195                                 break;
4196
4197                         case TEST_UNIT_READY:
4198                                 if (!ips_online(ha, scb)) {
4199                                         errcode = DID_TIME_OUT;
4200                                 }
4201                                 break;
4202
4203                         case INQUIRY:
4204                                 if (ips_online(ha, scb)) {
4205                                         ips_inquiry(ha, scb);
4206                                 } else {
4207                                         errcode = DID_TIME_OUT;
4208                                 }
4209                                 break;
4210
4211                         case REQUEST_SENSE:
4212                                 ips_reqsen(ha, scb);
4213                                 break;
4214
4215                         case READ_6:
4216                         case WRITE_6:
4217                         case READ_10:
4218                         case WRITE_10:
4219                         case RESERVE:
4220                         case RELEASE:
4221                                 break;
4222
4223                         case MODE_SENSE:
4224                                 if (!ips_online(ha, scb)
4225                                     || !ips_msense(ha, scb)) {
4226                                         errcode = DID_ERROR;
4227                                 }
4228                                 break;
4229
4230                         case READ_CAPACITY:
4231                                 if (ips_online(ha, scb))
4232                                         ips_rdcap(ha, scb);
4233                                 else {
4234                                         errcode = DID_TIME_OUT;
4235                                 }
4236                                 break;
4237
4238                         case SEND_DIAGNOSTIC:
4239                         case REASSIGN_BLOCKS:
4240                                 break;
4241
4242                         case FORMAT_UNIT:
4243                                 errcode = DID_ERROR;
4244                                 break;
4245
4246                         case SEEK_10:
4247                         case VERIFY:
4248                         case READ_DEFECT_DATA:
4249                         case READ_BUFFER:
4250                         case WRITE_BUFFER:
4251                                 break;
4252
4253                         default:
4254                                 errcode = DID_ERROR;
4255                         }       /* end switch */
4256
4257                         scb->scsi_cmd->result = errcode << 16;
4258                 } else {        /* bus == 0 */
4259                         /* restrict access to physical drives */
4260                         if (scb->scsi_cmd->cmnd[0] == INQUIRY) {
4261                             ips_scmd_buf_read(scb->scsi_cmd,
4262                                   &inquiryData, sizeof (inquiryData));
4263                             if ((inquiryData.DeviceType & 0x1f) == TYPE_DISK)
4264                                 scb->scsi_cmd->result = DID_TIME_OUT << 16;
4265                         }
4266                 }               /* else */
4267         } else {                /* recovered error / success */
4268                 if (scb->bus == 0) {
4269                         DEBUG_VAR(1,
4270                                   "(%s%d) Unrecovered Logical Drive Error OpCode: %x, BSB: %x, ESB: %x",
4271                                   ips_name, ha->host_num,
4272                                   scb->cmd.basic_io.op_code, basic_status,
4273                                   ext_status);
4274                 }
4275
4276                 ips_map_status(ha, scb, sp);
4277         }                       /* else */
4278 }
4279
4280 /****************************************************************************/
4281 /*                                                                          */
4282 /* Routine Name: ips_online                                                 */
4283 /*                                                                          */
4284 /* Routine Description:                                                     */
4285 /*                                                                          */
4286 /*   Determine if a logical drive is online                                 */
4287 /*                                                                          */
4288 /****************************************************************************/
4289 static int
4290 ips_online(ips_ha_t * ha, ips_scb_t * scb)
4291 {
4292         METHOD_TRACE("ips_online", 1);
4293
4294         if (scb->target_id >= IPS_MAX_LD)
4295                 return (0);
4296
4297         if ((scb->basic_status & IPS_GSC_STATUS_MASK) > 1) {
4298                 memset(ha->logical_drive_info, 0, sizeof (IPS_LD_INFO));
4299                 return (0);
4300         }
4301
4302         if (ha->logical_drive_info->drive_info[scb->target_id].state !=
4303             IPS_LD_OFFLINE
4304             && ha->logical_drive_info->drive_info[scb->target_id].state !=
4305             IPS_LD_FREE
4306             && ha->logical_drive_info->drive_info[scb->target_id].state !=
4307             IPS_LD_CRS
4308             && ha->logical_drive_info->drive_info[scb->target_id].state !=
4309             IPS_LD_SYS)
4310                 return (1);
4311         else
4312                 return (0);
4313 }
4314
4315 /****************************************************************************/
4316 /*                                                                          */
4317 /* Routine Name: ips_inquiry                                                */
4318 /*                                                                          */
4319 /* Routine Description:                                                     */
4320 /*                                                                          */
4321 /*   Simulate an inquiry command to a logical drive                         */
4322 /*                                                                          */
4323 /****************************************************************************/
4324 static int
4325 ips_inquiry(ips_ha_t * ha, ips_scb_t * scb)
4326 {
4327         IPS_SCSI_INQ_DATA inquiry;
4328
4329         METHOD_TRACE("ips_inquiry", 1);
4330
4331         memset(&inquiry, 0, sizeof (IPS_SCSI_INQ_DATA));
4332
4333         inquiry.DeviceType = IPS_SCSI_INQ_TYPE_DASD;
4334         inquiry.DeviceTypeQualifier = IPS_SCSI_INQ_LU_CONNECTED;
4335         inquiry.Version = IPS_SCSI_INQ_REV2;
4336         inquiry.ResponseDataFormat = IPS_SCSI_INQ_RD_REV2;
4337         inquiry.AdditionalLength = 31;
4338         inquiry.Flags[0] = IPS_SCSI_INQ_Address16;
4339         inquiry.Flags[1] =
4340             IPS_SCSI_INQ_WBus16 | IPS_SCSI_INQ_Sync | IPS_SCSI_INQ_CmdQue;
4341         strncpy(inquiry.VendorId, "IBM     ", 8);
4342         strncpy(inquiry.ProductId, "SERVERAID       ", 16);
4343         strncpy(inquiry.ProductRevisionLevel, "1.00", 4);
4344
4345         ips_scmd_buf_write(scb->scsi_cmd, &inquiry, sizeof (inquiry));
4346
4347         return (1);
4348 }
4349
4350 /****************************************************************************/
4351 /*                                                                          */
4352 /* Routine Name: ips_rdcap                                                  */
4353 /*                                                                          */
4354 /* Routine Description:                                                     */
4355 /*                                                                          */
4356 /*   Simulate a read capacity command to a logical drive                    */
4357 /*                                                                          */
4358 /****************************************************************************/
4359 static int
4360 ips_rdcap(ips_ha_t * ha, ips_scb_t * scb)
4361 {
4362         IPS_SCSI_CAPACITY cap;
4363
4364         METHOD_TRACE("ips_rdcap", 1);
4365
4366         if (scb->scsi_cmd->bufflen < 8)
4367                 return (0);
4368
4369         cap.lba =
4370             cpu_to_be32(le32_to_cpu
4371                         (ha->logical_drive_info->
4372                          drive_info[scb->target_id].sector_count) - 1);
4373         cap.len = cpu_to_be32((uint32_t) IPS_BLKSIZE);
4374
4375         ips_scmd_buf_write(scb->scsi_cmd, &cap, sizeof (cap));
4376
4377         return (1);
4378 }
4379
4380 /****************************************************************************/
4381 /*                                                                          */
4382 /* Routine Name: ips_msense                                                 */
4383 /*                                                                          */
4384 /* Routine Description:                                                     */
4385 /*                                                                          */
4386 /*   Simulate a mode sense command to a logical drive                       */
4387 /*                                                                          */
4388 /****************************************************************************/
4389 static int
4390 ips_msense(ips_ha_t * ha, ips_scb_t * scb)
4391 {
4392         uint16_t heads;
4393         uint16_t sectors;
4394         uint32_t cylinders;
4395         IPS_SCSI_MODE_PAGE_DATA mdata;
4396
4397         METHOD_TRACE("ips_msense", 1);
4398
4399         if (le32_to_cpu(ha->enq->ulDriveSize[scb->target_id]) > 0x400000 &&
4400             (ha->enq->ucMiscFlag & 0x8) == 0) {
4401                 heads = IPS_NORM_HEADS;
4402                 sectors = IPS_NORM_SECTORS;
4403         } else {
4404                 heads = IPS_COMP_HEADS;
4405                 sectors = IPS_COMP_SECTORS;
4406         }
4407
4408         cylinders =
4409             (le32_to_cpu(ha->enq->ulDriveSize[scb->target_id]) -
4410              1) / (heads * sectors);
4411
4412         memset(&mdata, 0, sizeof (IPS_SCSI_MODE_PAGE_DATA));
4413
4414         mdata.hdr.BlockDescLength = 8;
4415
4416         switch (scb->scsi_cmd->cmnd[2] & 0x3f) {
4417         case 0x03:              /* page 3 */
4418                 mdata.pdata.pg3.PageCode = 3;
4419                 mdata.pdata.pg3.PageLength = sizeof (IPS_SCSI_MODE_PAGE3);
4420                 mdata.hdr.DataLength =
4421                     3 + mdata.hdr.BlockDescLength + mdata.pdata.pg3.PageLength;
4422                 mdata.pdata.pg3.TracksPerZone = 0;
4423                 mdata.pdata.pg3.AltSectorsPerZone = 0;
4424                 mdata.pdata.pg3.AltTracksPerZone = 0;
4425                 mdata.pdata.pg3.AltTracksPerVolume = 0;
4426                 mdata.pdata.pg3.SectorsPerTrack = cpu_to_be16(sectors);
4427                 mdata.pdata.pg3.BytesPerSector = cpu_to_be16(IPS_BLKSIZE);
4428                 mdata.pdata.pg3.Interleave = cpu_to_be16(1);
4429                 mdata.pdata.pg3.TrackSkew = 0;
4430                 mdata.pdata.pg3.CylinderSkew = 0;
4431                 mdata.pdata.pg3.flags = IPS_SCSI_MP3_SoftSector;
4432                 break;
4433
4434         case 0x4:
4435                 mdata.pdata.pg4.PageCode = 4;
4436                 mdata.pdata.pg4.PageLength = sizeof (IPS_SCSI_MODE_PAGE4);
4437                 mdata.hdr.DataLength =
4438                     3 + mdata.hdr.BlockDescLength + mdata.pdata.pg4.PageLength;
4439                 mdata.pdata.pg4.CylindersHigh =
4440                     cpu_to_be16((cylinders >> 8) & 0xFFFF);
4441                 mdata.pdata.pg4.CylindersLow = (cylinders & 0xFF);
4442                 mdata.pdata.pg4.Heads = heads;
4443                 mdata.pdata.pg4.WritePrecompHigh = 0;
4444                 mdata.pdata.pg4.WritePrecompLow = 0;
4445                 mdata.pdata.pg4.ReducedWriteCurrentHigh = 0;
4446                 mdata.pdata.pg4.ReducedWriteCurrentLow = 0;
4447                 mdata.pdata.pg4.StepRate = cpu_to_be16(1);
4448                 mdata.pdata.pg4.LandingZoneHigh = 0;
4449                 mdata.pdata.pg4.LandingZoneLow = 0;
4450                 mdata.pdata.pg4.flags = 0;
4451                 mdata.pdata.pg4.RotationalOffset = 0;
4452                 mdata.pdata.pg4.MediumRotationRate = 0;
4453                 break;
4454         case 0x8:
4455                 mdata.pdata.pg8.PageCode = 8;
4456                 mdata.pdata.pg8.PageLength = sizeof (IPS_SCSI_MODE_PAGE8);
4457                 mdata.hdr.DataLength =
4458                     3 + mdata.hdr.BlockDescLength + mdata.pdata.pg8.PageLength;
4459                 /* everything else is left set to 0 */
4460                 break;
4461
4462         default:
4463                 return (0);
4464         }                       /* end switch */
4465
4466         ips_scmd_buf_write(scb->scsi_cmd, &mdata, sizeof (mdata));
4467
4468         return (1);
4469 }
4470
4471 /****************************************************************************/
4472 /*                                                                          */
4473 /* Routine Name: ips_reqsen                                                 */
4474 /*                                                                          */
4475 /* Routine Description:                                                     */
4476 /*                                                                          */
4477 /*   Simulate a request sense command to a logical drive                    */
4478 /*                                                                          */
4479 /****************************************************************************/
4480 static int
4481 ips_reqsen(ips_ha_t * ha, ips_scb_t * scb)
4482 {
4483         IPS_SCSI_REQSEN reqsen;
4484
4485         METHOD_TRACE("ips_reqsen", 1);
4486
4487         memset(&reqsen, 0, sizeof (IPS_SCSI_REQSEN));
4488
4489         reqsen.ResponseCode =
4490             IPS_SCSI_REQSEN_VALID | IPS_SCSI_REQSEN_CURRENT_ERR;
4491         reqsen.AdditionalLength = 10;
4492         reqsen.AdditionalSenseCode = IPS_SCSI_REQSEN_NO_SENSE;
4493         reqsen.AdditionalSenseCodeQual = IPS_SCSI_REQSEN_NO_SENSE;
4494
4495         ips_scmd_buf_write(scb->scsi_cmd, &reqsen, sizeof (reqsen));
4496
4497         return (1);
4498 }
4499
4500 /****************************************************************************/
4501 /*                                                                          */
4502 /* Routine Name: ips_free                                                   */
4503 /*                                                                          */
4504 /* Routine Description:                                                     */
4505 /*                                                                          */
4506 /*   Free any allocated space for this controller                           */
4507 /*                                                                          */
4508 /****************************************************************************/
4509 static void
4510 ips_free(ips_ha_t * ha)
4511 {
4512
4513         METHOD_TRACE("ips_free", 1);
4514
4515         if (ha) {
4516                 if (ha->enq) {
4517                         pci_free_consistent(ha->pcidev, sizeof(IPS_ENQ),
4518                                             ha->enq, ha->enq_busaddr);
4519                         ha->enq = NULL;
4520                 }
4521
4522                 kfree(ha->conf);
4523                 ha->conf = NULL;
4524
4525                 if (ha->adapt) {
4526                         pci_free_consistent(ha->pcidev,
4527                                             sizeof (IPS_ADAPTER) +
4528                                             sizeof (IPS_IO_CMD), ha->adapt,
4529                                             ha->adapt->hw_status_start);
4530                         ha->adapt = NULL;
4531                 }
4532
4533                 if (ha->logical_drive_info) {
4534                         pci_free_consistent(ha->pcidev,
4535                                             sizeof (IPS_LD_INFO),
4536                                             ha->logical_drive_info,
4537                                             ha->logical_drive_info_dma_addr);
4538                         ha->logical_drive_info = NULL;
4539                 }
4540
4541                 kfree(ha->nvram);
4542                 ha->nvram = NULL;
4543
4544                 kfree(ha->subsys);
4545                 ha->subsys = NULL;
4546
4547                 if (ha->ioctl_data) {
4548                         pci_free_consistent(ha->pcidev, ha->ioctl_len,
4549                                             ha->ioctl_data, ha->ioctl_busaddr);
4550                         ha->ioctl_data = NULL;
4551                         ha->ioctl_datasize = 0;
4552                         ha->ioctl_len = 0;
4553                 }
4554                 ips_deallocatescbs(ha, ha->max_cmds);
4555
4556                 /* free memory mapped (if applicable) */
4557                 if (ha->mem_ptr) {
4558                         iounmap(ha->ioremap_ptr);
4559                         ha->ioremap_ptr = NULL;
4560                         ha->mem_ptr = NULL;
4561                 }
4562
4563                 if (ha->mem_addr)
4564                         release_mem_region(ha->mem_addr, ha->mem_len);
4565                 ha->mem_addr = 0;
4566
4567         }
4568 }
4569
4570 /****************************************************************************/
4571 /*                                                                          */
4572 /* Routine Name: ips_deallocatescbs                                         */
4573 /*                                                                          */
4574 /* Routine Description:                                                     */
4575 /*                                                                          */
4576 /*   Free the command blocks                                                */
4577 /*                                                                          */
4578 /****************************************************************************/
4579 static int
4580 ips_deallocatescbs(ips_ha_t * ha, int cmds)
4581 {
4582         if (ha->scbs) {
4583                 pci_free_consistent(ha->pcidev,
4584                                     IPS_SGLIST_SIZE(ha) * IPS_MAX_SG * cmds,
4585                                     ha->scbs->sg_list.list,
4586                                     ha->scbs->sg_busaddr);
4587                 pci_free_consistent(ha->pcidev, sizeof (ips_scb_t) * cmds,
4588                                     ha->scbs, ha->scbs->scb_busaddr);
4589                 ha->scbs = NULL;
4590         }                       /* end if */
4591         return 1;
4592 }
4593
4594 /****************************************************************************/
4595 /*                                                                          */
4596 /* Routine Name: ips_allocatescbs                                           */
4597 /*                                                                          */
4598 /* Routine Description:                                                     */
4599 /*                                                                          */
4600 /*   Allocate the command blocks                                            */
4601 /*                                                                          */
4602 /****************************************************************************/
4603 static int
4604 ips_allocatescbs(ips_ha_t * ha)
4605 {
4606         ips_scb_t *scb_p;
4607         IPS_SG_LIST ips_sg;
4608         int i;
4609         dma_addr_t command_dma, sg_dma;
4610
4611         METHOD_TRACE("ips_allocatescbs", 1);
4612
4613         /* Allocate memory for the SCBs */
4614         ha->scbs =
4615             pci_alloc_consistent(ha->pcidev, ha->max_cmds * sizeof (ips_scb_t),
4616                                  &command_dma);
4617         if (ha->scbs == NULL)
4618                 return 0;
4619         ips_sg.list =
4620             pci_alloc_consistent(ha->pcidev,
4621                                  IPS_SGLIST_SIZE(ha) * IPS_MAX_SG *
4622                                  ha->max_cmds, &sg_dma);
4623         if (ips_sg.list == NULL) {
4624                 pci_free_consistent(ha->pcidev,
4625                                     ha->max_cmds * sizeof (ips_scb_t), ha->scbs,
4626                                     command_dma);
4627                 return 0;
4628         }
4629
4630         memset(ha->scbs, 0, ha->max_cmds * sizeof (ips_scb_t));
4631
4632         for (i = 0; i < ha->max_cmds; i++) {
4633                 scb_p = &ha->scbs[i];
4634                 scb_p->scb_busaddr = command_dma + sizeof (ips_scb_t) * i;
4635                 /* set up S/G list */
4636                 if (IPS_USE_ENH_SGLIST(ha)) {
4637                         scb_p->sg_list.enh_list =
4638                             ips_sg.enh_list + i * IPS_MAX_SG;
4639                         scb_p->sg_busaddr =
4640                             sg_dma + IPS_SGLIST_SIZE(ha) * IPS_MAX_SG * i;
4641                 } else {
4642                         scb_p->sg_list.std_list =
4643                             ips_sg.std_list + i * IPS_MAX_SG;
4644                         scb_p->sg_busaddr =
4645                             sg_dma + IPS_SGLIST_SIZE(ha) * IPS_MAX_SG * i;
4646                 }
4647
4648                 /* add to the free list */
4649                 if (i < ha->max_cmds - 1) {
4650                         scb_p->q_next = ha->scb_freelist;
4651                         ha->scb_freelist = scb_p;
4652                 }
4653         }
4654
4655         /* success */
4656         return (1);
4657 }
4658
4659 /****************************************************************************/
4660 /*                                                                          */
4661 /* Routine Name: ips_init_scb                                               */
4662 /*                                                                          */
4663 /* Routine Description:                                                     */
4664 /*                                                                          */
4665 /*   Initialize a CCB to default values                                     */
4666 /*                                                                          */
4667 /****************************************************************************/
4668 static void
4669 ips_init_scb(ips_ha_t * ha, ips_scb_t * scb)
4670 {
4671         IPS_SG_LIST sg_list;
4672         uint32_t cmd_busaddr, sg_busaddr;
4673         METHOD_TRACE("ips_init_scb", 1);
4674
4675         if (scb == NULL)
4676                 return;
4677
4678         sg_list.list = scb->sg_list.list;
4679         cmd_busaddr = scb->scb_busaddr;
4680         sg_busaddr = scb->sg_busaddr;
4681         /* zero fill */
4682         memset(scb, 0, sizeof (ips_scb_t));
4683         memset(ha->dummy, 0, sizeof (IPS_IO_CMD));
4684
4685         /* Initialize dummy command bucket */
4686         ha->dummy->op_code = 0xFF;
4687         ha->dummy->ccsar = cpu_to_le32(ha->adapt->hw_status_start
4688                                        + sizeof (IPS_ADAPTER));
4689         ha->dummy->command_id = IPS_MAX_CMDS;
4690
4691         /* set bus address of scb */
4692         scb->scb_busaddr = cmd_busaddr;
4693         scb->sg_busaddr = sg_busaddr;
4694         scb->sg_list.list = sg_list.list;
4695
4696         /* Neptune Fix */
4697         scb->cmd.basic_io.cccr = cpu_to_le32((uint32_t) IPS_BIT_ILE);
4698         scb->cmd.basic_io.ccsar = cpu_to_le32(ha->adapt->hw_status_start
4699                                               + sizeof (IPS_ADAPTER));
4700 }
4701
4702 /****************************************************************************/
4703 /*                                                                          */
4704 /* Routine Name: ips_get_scb                                                */
4705 /*                                                                          */
4706 /* Routine Description:                                                     */
4707 /*                                                                          */
4708 /*   Initialize a CCB to default values                                     */
4709 /*                                                                          */
4710 /* ASSUMED to be callled from within a lock                                 */
4711 /*                                                                          */
4712 /****************************************************************************/
4713 static ips_scb_t *
4714 ips_getscb(ips_ha_t * ha)
4715 {
4716         ips_scb_t *scb;
4717
4718         METHOD_TRACE("ips_getscb", 1);
4719
4720         if ((scb = ha->scb_freelist) == NULL) {
4721
4722                 return (NULL);
4723         }
4724
4725         ha->scb_freelist = scb->q_next;
4726         scb->flags = 0;
4727         scb->q_next = NULL;
4728
4729         ips_init_scb(ha, scb);
4730
4731         return (scb);
4732 }
4733
4734 /****************************************************************************/
4735 /*                                                                          */
4736 /* Routine Name: ips_free_scb                                               */
4737 /*                                                                          */
4738 /* Routine Description:                                                     */
4739 /*                                                                          */
4740 /*   Return an unused CCB back to the free list                             */
4741 /*                                                                          */
4742 /* ASSUMED to be called from within a lock                                  */
4743 /*                                                                          */
4744 /****************************************************************************/
4745 static void
4746 ips_freescb(ips_ha_t * ha, ips_scb_t * scb)
4747 {
4748
4749         METHOD_TRACE("ips_freescb", 1);
4750         if (scb->flags & IPS_SCB_MAP_SG)
4751                 pci_unmap_sg(ha->pcidev, scb->scsi_cmd->request_buffer,
4752                              scb->scsi_cmd->use_sg, IPS_DMA_DIR(scb));
4753         else if (scb->flags & IPS_SCB_MAP_SINGLE)
4754                 pci_unmap_single(ha->pcidev, scb->data_busaddr, scb->data_len,
4755                                  IPS_DMA_DIR(scb));
4756
4757         /* check to make sure this is not our "special" scb */
4758         if (IPS_COMMAND_ID(ha, scb) < (ha->max_cmds - 1)) {
4759                 scb->q_next = ha->scb_freelist;
4760                 ha->scb_freelist = scb;
4761         }
4762 }
4763
4764 /****************************************************************************/
4765 /*                                                                          */
4766 /* Routine Name: ips_isinit_copperhead                                      */
4767 /*                                                                          */
4768 /* Routine Description:                                                     */
4769 /*                                                                          */
4770 /*   Is controller initialized ?                                            */
4771 /*                                                                          */
4772 /****************************************************************************/
4773 static int
4774 ips_isinit_copperhead(ips_ha_t * ha)
4775 {
4776         uint8_t scpr;
4777         uint8_t isr;
4778
4779         METHOD_TRACE("ips_isinit_copperhead", 1);
4780
4781         isr = inb(ha->io_addr + IPS_REG_HISR);
4782         scpr = inb(ha->io_addr + IPS_REG_SCPR);
4783
4784         if (((isr & IPS_BIT_EI) == 0) && ((scpr & IPS_BIT_EBM) == 0))
4785                 return (0);
4786         else
4787                 return (1);
4788 }
4789
4790 /****************************************************************************/
4791 /*                                                                          */
4792 /* Routine Name: ips_isinit_copperhead_memio                                */
4793 /*                                                                          */
4794 /* Routine Description:                                                     */
4795 /*                                                                          */
4796 /*   Is controller initialized ?                                            */
4797 /*                                                                          */
4798 /****************************************************************************/
4799 static int
4800 ips_isinit_copperhead_memio(ips_ha_t * ha)
4801 {
4802         uint8_t isr = 0;
4803         uint8_t scpr;
4804
4805         METHOD_TRACE("ips_is_init_copperhead_memio", 1);
4806
4807         isr = readb(ha->mem_ptr + IPS_REG_HISR);
4808         scpr = readb(ha->mem_ptr + IPS_REG_SCPR);
4809
4810         if (((isr & IPS_BIT_EI) == 0) && ((scpr & IPS_BIT_EBM) == 0))
4811                 return (0);
4812         else
4813                 return (1);
4814 }
4815
4816 /****************************************************************************/
4817 /*                                                                          */
4818 /* Routine Name: ips_isinit_morpheus                                        */
4819 /*                                                                          */
4820 /* Routine Description:                                                     */
4821 /*                                                                          */
4822 /*   Is controller initialized ?                                            */
4823 /*                                                                          */
4824 /****************************************************************************/
4825 static int
4826 ips_isinit_morpheus(ips_ha_t * ha)
4827 {
4828         uint32_t post;
4829         uint32_t bits;
4830
4831         METHOD_TRACE("ips_is_init_morpheus", 1);
4832
4833         if (ips_isintr_morpheus(ha))
4834             ips_flush_and_reset(ha);
4835
4836         post = readl(ha->mem_ptr + IPS_REG_I960_MSG0);
4837         bits = readl(ha->mem_ptr + IPS_REG_I2O_HIR);
4838
4839         if (post == 0)
4840                 return (0);
4841         else if (bits & 0x3)
4842                 return (0);
4843         else
4844                 return (1);
4845 }
4846
4847 /****************************************************************************/
4848 /*                                                                          */
4849 /* Routine Name: ips_flush_and_reset                                        */
4850 /*                                                                          */
4851 /* Routine Description:                                                     */
4852 /*                                                                          */
4853 /*   Perform cleanup ( FLUSH and RESET ) when the adapter is in an unknown  */
4854 /*   state ( was trying to INIT and an interrupt was already pending ) ...  */
4855 /*                                                                          */
4856 /****************************************************************************/
4857 static void
4858 ips_flush_and_reset(ips_ha_t *ha)
4859 {
4860         ips_scb_t *scb;
4861         int  ret;
4862         int  time;
4863         int  done;
4864         dma_addr_t command_dma;
4865
4866         /* Create a usuable SCB */
4867         scb = pci_alloc_consistent(ha->pcidev, sizeof(ips_scb_t), &command_dma);
4868         if (scb) {
4869             memset(scb, 0, sizeof(ips_scb_t));
4870             ips_init_scb(ha, scb);
4871             scb->scb_busaddr = command_dma;
4872
4873             scb->timeout = ips_cmd_timeout;
4874             scb->cdb[0] = IPS_CMD_FLUSH;
4875
4876             scb->cmd.flush_cache.op_code = IPS_CMD_FLUSH;
4877             scb->cmd.flush_cache.command_id = IPS_MAX_CMDS;   /* Use an ID that would otherwise not exist */
4878             scb->cmd.flush_cache.state = IPS_NORM_STATE;
4879             scb->cmd.flush_cache.reserved = 0;
4880             scb->cmd.flush_cache.reserved2 = 0;
4881             scb->cmd.flush_cache.reserved3 = 0;
4882             scb->cmd.flush_cache.reserved4 = 0;
4883
4884             ret = ips_send_cmd(ha, scb);                      /* Send the Flush Command */
4885
4886             if (ret == IPS_SUCCESS) {
4887                 time = 60 * IPS_ONE_SEC;                      /* Max Wait time is 60 seconds */
4888                 done = 0;
4889
4890                 while ((time > 0) && (!done)) {
4891                    done = ips_poll_for_flush_complete(ha);
4892                    /* This may look evil, but it's only done during extremely rare start-up conditions ! */
4893                    udelay(1000);
4894                    time--;
4895                 }
4896         }
4897         }
4898
4899         /* Now RESET and INIT the adapter */
4900         (*ha->func.reset) (ha);
4901
4902         pci_free_consistent(ha->pcidev, sizeof(ips_scb_t), scb, command_dma);
4903         return;
4904 }
4905
4906 /****************************************************************************/
4907 /*                                                                          */
4908 /* Routine Name: ips_poll_for_flush_complete                                */
4909 /*                                                                          */
4910 /* Routine Description:                                                     */
4911 /*                                                                          */
4912 /*   Poll for the Flush Command issued by ips_flush_and_reset() to complete */
4913 /*   All other responses are just taken off the queue and ignored           */
4914 /*                                                                          */
4915 /****************************************************************************/
4916 static int
4917 ips_poll_for_flush_complete(ips_ha_t * ha)
4918 {
4919         IPS_STATUS cstatus;
4920
4921         while (TRUE) {
4922             cstatus.value = (*ha->func.statupd) (ha);
4923
4924             if (cstatus.value == 0xffffffff)      /* If No Interrupt to process */
4925                         break;
4926
4927             /* Success is when we see the Flush Command ID */
4928             if (cstatus.fields.command_id == IPS_MAX_CMDS )
4929                 return 1;
4930          }
4931
4932         return 0;
4933 }
4934
4935 /****************************************************************************/
4936 /*                                                                          */
4937 /* Routine Name: ips_enable_int_copperhead                                  */
4938 /*                                                                          */
4939 /* Routine Description:                                                     */
4940 /*   Turn on interrupts                                                     */
4941 /*                                                                          */
4942 /****************************************************************************/
4943 static void
4944 ips_enable_int_copperhead(ips_ha_t * ha)
4945 {
4946         METHOD_TRACE("ips_enable_int_copperhead", 1);
4947
4948         outb(ha->io_addr + IPS_REG_HISR, IPS_BIT_EI);
4949         inb(ha->io_addr + IPS_REG_HISR);        /*Ensure PCI Posting Completes*/
4950 }
4951
4952 /****************************************************************************/
4953 /*                                                                          */
4954 /* Routine Name: ips_enable_int_copperhead_memio                            */
4955 /*                                                                          */
4956 /* Routine Description:                                                     */
4957 /*   Turn on interrupts                                                     */
4958 /*                                                                          */
4959 /****************************************************************************/
4960 static void
4961 ips_enable_int_copperhead_memio(ips_ha_t * ha)
4962 {
4963         METHOD_TRACE("ips_enable_int_copperhead_memio", 1);
4964
4965         writeb(IPS_BIT_EI, ha->mem_ptr + IPS_REG_HISR);
4966         readb(ha->mem_ptr + IPS_REG_HISR);      /*Ensure PCI Posting Completes*/
4967 }
4968
4969 /****************************************************************************/
4970 /*                                                                          */
4971 /* Routine Name: ips_enable_int_morpheus                                    */
4972 /*                                                                          */
4973 /* Routine Description:                                                     */
4974 /*   Turn on interrupts                                                     */
4975 /*                                                                          */
4976 /****************************************************************************/
4977 static void
4978 ips_enable_int_morpheus(ips_ha_t * ha)
4979 {
4980         uint32_t Oimr;
4981
4982         METHOD_TRACE("ips_enable_int_morpheus", 1);
4983
4984         Oimr = readl(ha->mem_ptr + IPS_REG_I960_OIMR);
4985         Oimr &= ~0x08;
4986         writel(Oimr, ha->mem_ptr + IPS_REG_I960_OIMR);
4987         readl(ha->mem_ptr + IPS_REG_I960_OIMR); /*Ensure PCI Posting Completes*/
4988 }
4989
4990 /****************************************************************************/
4991 /*                                                                          */
4992 /* Routine Name: ips_init_copperhead                                        */
4993 /*                                                                          */
4994 /* Routine Description:                                                     */
4995 /*                                                                          */
4996 /*   Initialize a copperhead controller                                     */
4997 /*                                                                          */
4998 /****************************************************************************/
4999 static int
5000 ips_init_copperhead(ips_ha_t * ha)
5001 {
5002         uint8_t Isr;
5003         uint8_t Cbsp;
5004         uint8_t PostByte[IPS_MAX_POST_BYTES];
5005         uint8_t ConfigByte[IPS_MAX_CONFIG_BYTES];
5006         int i, j;
5007
5008         METHOD_TRACE("ips_init_copperhead", 1);
5009
5010         for (i = 0; i < IPS_MAX_POST_BYTES; i++) {
5011                 for (j = 0; j < 45; j++) {
5012                         Isr = inb(ha->io_addr + IPS_REG_HISR);
5013                         if (Isr & IPS_BIT_GHI)
5014                                 break;
5015
5016                         /* Delay for 1 Second */
5017                         msleep(IPS_ONE_SEC);
5018                 }
5019
5020                 if (j >= 45)
5021                         /* error occurred */
5022                         return (0);
5023
5024                 PostByte[i] = inb(ha->io_addr + IPS_REG_ISPR);
5025                 outb(Isr, ha->io_addr + IPS_REG_HISR);
5026         }
5027
5028         if (PostByte[0] < IPS_GOOD_POST_STATUS) {
5029                 IPS_PRINTK(KERN_WARNING, ha->pcidev,
5030                            "reset controller fails (post status %x %x).\n",
5031                            PostByte[0], PostByte[1]);
5032
5033                 return (0);
5034         }
5035
5036         for (i = 0; i < IPS_MAX_CONFIG_BYTES; i++) {
5037                 for (j = 0; j < 240; j++) {
5038                         Isr = inb(ha->io_addr + IPS_REG_HISR);
5039                         if (Isr & IPS_BIT_GHI)
5040                                 break;
5041
5042                         /* Delay for 1 Second */
5043                         msleep(IPS_ONE_SEC);
5044                 }
5045
5046                 if (j >= 240)
5047                         /* error occurred */
5048                         return (0);
5049
5050                 ConfigByte[i] = inb(ha->io_addr + IPS_REG_ISPR);
5051                 outb(Isr, ha->io_addr + IPS_REG_HISR);
5052         }
5053
5054         for (i = 0; i < 240; i++) {
5055                 Cbsp = inb(ha->io_addr + IPS_REG_CBSP);
5056
5057                 if ((Cbsp & IPS_BIT_OP) == 0)
5058                         break;
5059
5060                 /* Delay for 1 Second */
5061                 msleep(IPS_ONE_SEC);
5062         }
5063
5064         if (i >= 240)
5065                 /* reset failed */
5066                 return (0);
5067
5068         /* setup CCCR */
5069         outl(cpu_to_le32(0x1010), ha->io_addr + IPS_REG_CCCR);
5070
5071         /* Enable busmastering */
5072         outb(IPS_BIT_EBM, ha->io_addr + IPS_REG_SCPR);
5073
5074         if (ha->revision_id == IPS_REVID_TROMBONE64)
5075                 /* fix for anaconda64 */
5076                 outl(0, ha->io_addr + IPS_REG_NDAE);
5077
5078         /* Enable interrupts */
5079         outb(IPS_BIT_EI, ha->io_addr + IPS_REG_HISR);
5080
5081         return (1);
5082 }
5083
5084 /****************************************************************************/
5085 /*                                                                          */
5086 /* Routine Name: ips_init_copperhead_memio                                  */
5087 /*                                                                          */
5088 /* Routine Description:                                                     */
5089 /*                                                                          */
5090 /*   Initialize a copperhead controller with memory mapped I/O              */
5091 /*                                                                          */
5092 /****************************************************************************/
5093 static int
5094 ips_init_copperhead_memio(ips_ha_t * ha)
5095 {
5096         uint8_t Isr = 0;
5097         uint8_t Cbsp;
5098         uint8_t PostByte[IPS_MAX_POST_BYTES];
5099         uint8_t ConfigByte[IPS_MAX_CONFIG_BYTES];
5100         int i, j;
5101
5102         METHOD_TRACE("ips_init_copperhead_memio", 1);
5103
5104         for (i = 0; i < IPS_MAX_POST_BYTES; i++) {
5105                 for (j = 0; j < 45; j++) {
5106                         Isr = readb(ha->mem_ptr + IPS_REG_HISR);
5107                         if (Isr & IPS_BIT_GHI)
5108                                 break;
5109
5110                         /* Delay for 1 Second */
5111                         msleep(IPS_ONE_SEC);
5112                 }
5113
5114                 if (j >= 45)
5115                         /* error occurred */
5116                         return (0);
5117
5118                 PostByte[i] = readb(ha->mem_ptr + IPS_REG_ISPR);
5119                 writeb(Isr, ha->mem_ptr + IPS_REG_HISR);
5120         }
5121
5122         if (PostByte[0] < IPS_GOOD_POST_STATUS) {
5123                 IPS_PRINTK(KERN_WARNING, ha->pcidev,
5124                            "reset controller fails (post status %x %x).\n",
5125                            PostByte[0], PostByte[1]);
5126
5127                 return (0);
5128         }
5129
5130         for (i = 0; i < IPS_MAX_CONFIG_BYTES; i++) {
5131                 for (j = 0; j < 240; j++) {
5132                         Isr = readb(ha->mem_ptr + IPS_REG_HISR);
5133                         if (Isr & IPS_BIT_GHI)
5134                                 break;
5135
5136                         /* Delay for 1 Second */
5137                         msleep(IPS_ONE_SEC);
5138                 }
5139
5140                 if (j >= 240)
5141                         /* error occurred */
5142                         return (0);
5143
5144                 ConfigByte[i] = readb(ha->mem_ptr + IPS_REG_ISPR);
5145                 writeb(Isr, ha->mem_ptr + IPS_REG_HISR);
5146         }
5147
5148         for (i = 0; i < 240; i++) {
5149                 Cbsp = readb(ha->mem_ptr + IPS_REG_CBSP);
5150
5151                 if ((Cbsp & IPS_BIT_OP) == 0)
5152                         break;
5153
5154                 /* Delay for 1 Second */
5155                 msleep(IPS_ONE_SEC);
5156         }
5157
5158         if (i >= 240)
5159                 /* error occurred */
5160                 return (0);
5161
5162         /* setup CCCR */
5163         writel(0x1010, ha->mem_ptr + IPS_REG_CCCR);
5164
5165         /* Enable busmastering */
5166         writeb(IPS_BIT_EBM, ha->mem_ptr + IPS_REG_SCPR);
5167
5168         if (ha->revision_id == IPS_REVID_TROMBONE64)
5169                 /* fix for anaconda64 */
5170                 writel(0, ha->mem_ptr + IPS_REG_NDAE);
5171
5172         /* Enable interrupts */
5173         writeb(IPS_BIT_EI, ha->mem_ptr + IPS_REG_HISR);
5174
5175         /* if we get here then everything went OK */
5176         return (1);
5177 }
5178
5179 /****************************************************************************/
5180 /*                                                                          */
5181 /* Routine Name: ips_init_morpheus                                          */
5182 /*                                                                          */
5183 /* Routine Description:                                                     */
5184 /*                                                                          */
5185 /*   Initialize a morpheus controller                                       */
5186 /*                                                                          */
5187 /****************************************************************************/
5188 static int
5189 ips_init_morpheus(ips_ha_t * ha)
5190 {
5191         uint32_t Post;
5192         uint32_t Config;
5193         uint32_t Isr;
5194         uint32_t Oimr;
5195         int i;
5196
5197         METHOD_TRACE("ips_init_morpheus", 1);
5198
5199         /* Wait up to 45 secs for Post */
5200         for (i = 0; i < 45; i++) {
5201                 Isr = readl(ha->mem_ptr + IPS_REG_I2O_HIR);
5202
5203                 if (Isr & IPS_BIT_I960_MSG0I)
5204                         break;
5205
5206                 /* Delay for 1 Second */
5207                 msleep(IPS_ONE_SEC);
5208         }
5209
5210         if (i >= 45) {
5211                 /* error occurred */
5212                 IPS_PRINTK(KERN_WARNING, ha->pcidev,
5213                            "timeout waiting for post.\n");
5214
5215                 return (0);
5216         }
5217
5218         Post = readl(ha->mem_ptr + IPS_REG_I960_MSG0);
5219
5220         if (Post == 0x4F00) {   /* If Flashing the Battery PIC         */
5221                 IPS_PRINTK(KERN_WARNING, ha->pcidev,
5222                            "Flashing Battery PIC, Please wait ...\n");
5223
5224                 /* Clear the interrupt bit */
5225                 Isr = (uint32_t) IPS_BIT_I960_MSG0I;
5226                 writel(Isr, ha->mem_ptr + IPS_REG_I2O_HIR);
5227
5228                 for (i = 0; i < 120; i++) {     /*    Wait Up to 2 Min. for Completion */
5229                         Post = readl(ha->mem_ptr + IPS_REG_I960_MSG0);
5230                         if (Post != 0x4F00)
5231                                 break;
5232                         /* Delay for 1 Second */
5233                         msleep(IPS_ONE_SEC);
5234                 }
5235
5236                 if (i >= 120) {
5237                         IPS_PRINTK(KERN_WARNING, ha->pcidev,
5238                                    "timeout waiting for Battery PIC Flash\n");
5239                         return (0);
5240                 }
5241
5242         }
5243
5244         /* Clear the interrupt bit */
5245         Isr = (uint32_t) IPS_BIT_I960_MSG0I;
5246         writel(Isr, ha->mem_ptr + IPS_REG_I2O_HIR);
5247
5248         if (Post < (IPS_GOOD_POST_STATUS << 8)) {
5249                 IPS_PRINTK(KERN_WARNING, ha->pcidev,
5250                            "reset controller fails (post status %x).\n", Post);
5251
5252                 return (0);
5253         }
5254
5255         /* Wait up to 240 secs for config bytes */
5256         for (i = 0; i < 240; i++) {
5257                 Isr = readl(ha->mem_ptr + IPS_REG_I2O_HIR);
5258
5259                 if (Isr & IPS_BIT_I960_MSG1I)
5260                         break;
5261
5262                 /* Delay for 1 Second */
5263                 msleep(IPS_ONE_SEC);
5264         }
5265
5266         if (i >= 240) {
5267                 /* error occurred */
5268                 IPS_PRINTK(KERN_WARNING, ha->pcidev,
5269                            "timeout waiting for config.\n");
5270
5271                 return (0);
5272         }
5273
5274         Config = readl(ha->mem_ptr + IPS_REG_I960_MSG1);
5275
5276         /* Clear interrupt bit */
5277         Isr = (uint32_t) IPS_BIT_I960_MSG1I;
5278         writel(Isr, ha->mem_ptr + IPS_REG_I2O_HIR);
5279
5280         /* Turn on the interrupts */
5281         Oimr = readl(ha->mem_ptr + IPS_REG_I960_OIMR);
5282         Oimr &= ~0x8;
5283         writel(Oimr, ha->mem_ptr + IPS_REG_I960_OIMR);
5284
5285         /* if we get here then everything went OK */
5286
5287         /* Since we did a RESET, an EraseStripeLock may be needed */
5288         if (Post == 0xEF10) {
5289                 if ((Config == 0x000F) || (Config == 0x0009))
5290                         ha->requires_esl = 1;
5291         }
5292
5293         return (1);
5294 }
5295
5296 /****************************************************************************/
5297 /*                                                                          */
5298 /* Routine Name: ips_reset_copperhead                                       */
5299 /*                                                                          */
5300 /* Routine Description:                                                     */
5301 /*                                                                          */
5302 /*   Reset the controller                                                   */
5303 /*                                                                          */
5304 /****************************************************************************/
5305 static int
5306 ips_reset_copperhead(ips_ha_t * ha)
5307 {
5308         int reset_counter;
5309
5310         METHOD_TRACE("ips_reset_copperhead", 1);
5311
5312         DEBUG_VAR(1, "(%s%d) ips_reset_copperhead: io addr: %x, irq: %d",
5313                   ips_name, ha->host_num, ha->io_addr, ha->irq);
5314
5315         reset_counter = 0;
5316
5317         while (reset_counter < 2) {
5318                 reset_counter++;
5319
5320                 outb(IPS_BIT_RST, ha->io_addr + IPS_REG_SCPR);
5321
5322                 /* Delay for 1 Second */
5323                 msleep(IPS_ONE_SEC);
5324
5325                 outb(0, ha->io_addr + IPS_REG_SCPR);
5326
5327                 /* Delay for 1 Second */
5328                 msleep(IPS_ONE_SEC);
5329
5330                 if ((*ha->func.init) (ha))
5331                         break;
5332                 else if (reset_counter >= 2) {
5333
5334                         return (0);
5335                 }
5336         }
5337
5338         return (1);
5339 }
5340
5341 /****************************************************************************/
5342 /*                                                                          */
5343 /* Routine Name: ips_reset_copperhead_memio                                 */
5344 /*                                                                          */
5345 /* Routine Description:                                                     */
5346 /*                                                                          */
5347 /*   Reset the controller                                                   */
5348 /*                                                                          */
5349 /****************************************************************************/
5350 static int
5351 ips_reset_copperhead_memio(ips_ha_t * ha)
5352 {
5353         int reset_counter;
5354
5355         METHOD_TRACE("ips_reset_copperhead_memio", 1);
5356
5357         DEBUG_VAR(1, "(%s%d) ips_reset_copperhead_memio: mem addr: %x, irq: %d",
5358                   ips_name, ha->host_num, ha->mem_addr, ha->irq);
5359
5360         reset_counter = 0;
5361
5362         while (reset_counter < 2) {
5363                 reset_counter++;
5364
5365                 writeb(IPS_BIT_RST, ha->mem_ptr + IPS_REG_SCPR);
5366
5367                 /* Delay for 1 Second */
5368                 msleep(IPS_ONE_SEC);
5369
5370                 writeb(0, ha->mem_ptr + IPS_REG_SCPR);
5371
5372                 /* Delay for 1 Second */
5373                 msleep(IPS_ONE_SEC);
5374
5375                 if ((*ha->func.init) (ha))
5376                         break;
5377                 else if (reset_counter >= 2) {
5378
5379                         return (0);
5380                 }
5381         }
5382
5383         return (1);
5384 }
5385
5386 /****************************************************************************/
5387 /*                                                                          */
5388 /* Routine Name: ips_reset_morpheus                                         */
5389 /*                                                                          */
5390 /* Routine Description:                                                     */
5391 /*                                                                          */
5392 /*   Reset the controller                                                   */
5393 /*                                                                          */
5394 /****************************************************************************/
5395 static int
5396 ips_reset_morpheus(ips_ha_t * ha)
5397 {
5398         int reset_counter;
5399         uint8_t junk;
5400
5401         METHOD_TRACE("ips_reset_morpheus", 1);
5402
5403         DEBUG_VAR(1, "(%s%d) ips_reset_morpheus: mem addr: %x, irq: %d",
5404                   ips_name, ha->host_num, ha->mem_addr, ha->irq);
5405
5406         reset_counter = 0;
5407
5408         while (reset_counter < 2) {
5409                 reset_counter++;
5410
5411                 writel(0x80000000, ha->mem_ptr + IPS_REG_I960_IDR);
5412
5413                 /* Delay for 5 Seconds */
5414                 msleep(5 * IPS_ONE_SEC);
5415
5416                 /* Do a PCI config read to wait for adapter */
5417                 pci_read_config_byte(ha->pcidev, 4, &junk);
5418
5419                 if ((*ha->func.init) (ha))
5420                         break;
5421                 else if (reset_counter >= 2) {
5422
5423                         return (0);
5424                 }
5425         }
5426
5427         return (1);
5428 }
5429
5430 /****************************************************************************/
5431 /*                                                                          */
5432 /* Routine Name: ips_statinit                                               */
5433 /*                                                                          */
5434 /* Routine Description:                                                     */
5435 /*                                                                          */
5436 /*   Initialize the status queues on the controller                         */
5437 /*                                                                          */
5438 /****************************************************************************/
5439 static void
5440 ips_statinit(ips_ha_t * ha)
5441 {
5442         uint32_t phys_status_start;
5443
5444         METHOD_TRACE("ips_statinit", 1);
5445
5446         ha->adapt->p_status_start = ha->adapt->status;
5447         ha->adapt->p_status_end = ha->adapt->status + IPS_MAX_CMDS;
5448         ha->adapt->p_status_tail = ha->adapt->status;
5449
5450         phys_status_start = ha->adapt->hw_status_start;
5451         outl(cpu_to_le32(phys_status_start), ha->io_addr + IPS_REG_SQSR);
5452         outl(cpu_to_le32(phys_status_start + IPS_STATUS_Q_SIZE),
5453              ha->io_addr + IPS_REG_SQER);
5454         outl(cpu_to_le32(phys_status_start + IPS_STATUS_SIZE),
5455              ha->io_addr + IPS_REG_SQHR);
5456         outl(cpu_to_le32(phys_status_start), ha->io_addr + IPS_REG_SQTR);
5457
5458         ha->adapt->hw_status_tail = phys_status_start;
5459 }
5460
5461 /****************************************************************************/
5462 /*                                                                          */
5463 /* Routine Name: ips_statinit_memio                                         */
5464 /*                                                                          */
5465 /* Routine Description:                                                     */
5466 /*                                                                          */
5467 /*   Initialize the status queues on the controller                         */
5468 /*                                                                          */
5469 /****************************************************************************/
5470 static void
5471 ips_statinit_memio(ips_ha_t * ha)
5472 {
5473         uint32_t phys_status_start;
5474
5475         METHOD_TRACE("ips_statinit_memio", 1);
5476
5477         ha->adapt->p_status_start = ha->adapt->status;
5478         ha->adapt->p_status_end = ha->adapt->status + IPS_MAX_CMDS;
5479         ha->adapt->p_status_tail = ha->adapt->status;
5480
5481         phys_status_start = ha->adapt->hw_status_start;
5482         writel(phys_status_start, ha->mem_ptr + IPS_REG_SQSR);
5483         writel(phys_status_start + IPS_STATUS_Q_SIZE,
5484                ha->mem_ptr + IPS_REG_SQER);
5485         writel(phys_status_start + IPS_STATUS_SIZE, ha->mem_ptr + IPS_REG_SQHR);
5486         writel(phys_status_start, ha->mem_ptr + IPS_REG_SQTR);
5487
5488         ha->adapt->hw_status_tail = phys_status_start;
5489 }
5490
5491 /****************************************************************************/
5492 /*                                                                          */
5493 /* Routine Name: ips_statupd_copperhead                                     */
5494 /*                                                                          */
5495 /* Routine Description:                                                     */
5496 /*                                                                          */
5497 /*   Remove an element from the status queue                                */
5498 /*                                                                          */
5499 /****************************************************************************/
5500 static uint32_t
5501 ips_statupd_copperhead(ips_ha_t * ha)
5502 {
5503         METHOD_TRACE("ips_statupd_copperhead", 1);
5504
5505         if (ha->adapt->p_status_tail != ha->adapt->p_status_end) {
5506                 ha->adapt->p_status_tail++;
5507                 ha->adapt->hw_status_tail += sizeof (IPS_STATUS);
5508         } else {
5509                 ha->adapt->p_status_tail = ha->adapt->p_status_start;
5510                 ha->adapt->hw_status_tail = ha->adapt->hw_status_start;
5511         }
5512
5513         outl(cpu_to_le32(ha->adapt->hw_status_tail),
5514              ha->io_addr + IPS_REG_SQTR);
5515
5516         return (ha->adapt->p_status_tail->value);
5517 }
5518
5519 /****************************************************************************/
5520 /*                                                                          */
5521 /* Routine Name: ips_statupd_copperhead_memio                               */
5522 /*                                                                          */
5523 /* Routine Description:                                                     */
5524 /*                                                                          */
5525 /*   Remove an element from the status queue                                */
5526 /*                                                                          */
5527 /****************************************************************************/
5528 static uint32_t
5529 ips_statupd_copperhead_memio(ips_ha_t * ha)
5530 {
5531         METHOD_TRACE("ips_statupd_copperhead_memio", 1);
5532
5533         if (ha->adapt->p_status_tail != ha->adapt->p_status_end) {
5534                 ha->adapt->p_status_tail++;
5535                 ha->adapt->hw_status_tail += sizeof (IPS_STATUS);
5536         } else {
5537                 ha->adapt->p_status_tail = ha->adapt->p_status_start;
5538                 ha->adapt->hw_status_tail = ha->adapt->hw_status_start;
5539         }
5540
5541         writel(ha->adapt->hw_status_tail, ha->mem_ptr + IPS_REG_SQTR);
5542
5543         return (ha->adapt->p_status_tail->value);
5544 }
5545
5546 /****************************************************************************/
5547 /*                                                                          */
5548 /* Routine Name: ips_statupd_morpheus                                       */
5549 /*                                                                          */
5550 /* Routine Description:                                                     */
5551 /*                                                                          */
5552 /*   Remove an element from the status queue                                */
5553 /*                                                                          */
5554 /****************************************************************************/
5555 static uint32_t
5556 ips_statupd_morpheus(ips_ha_t * ha)
5557 {
5558         uint32_t val;
5559
5560         METHOD_TRACE("ips_statupd_morpheus", 1);
5561
5562         val = readl(ha->mem_ptr + IPS_REG_I2O_OUTMSGQ);
5563
5564         return (val);
5565 }
5566
5567 /****************************************************************************/
5568 /*                                                                          */
5569 /* Routine Name: ips_issue_copperhead                                       */
5570 /*                                                                          */
5571 /* Routine Description:                                                     */
5572 /*                                                                          */
5573 /*   Send a command down to the controller                                  */
5574 /*                                                                          */
5575 /****************************************************************************/
5576 static int
5577 ips_issue_copperhead(ips_ha_t * ha, ips_scb_t * scb)
5578 {
5579         uint32_t TimeOut;
5580         uint32_t val;
5581
5582         METHOD_TRACE("ips_issue_copperhead", 1);
5583
5584         if (scb->scsi_cmd) {
5585                 DEBUG_VAR(2, "(%s%d) ips_issue: cmd 0x%X id %d (%d %d %d)",
5586                           ips_name,
5587                           ha->host_num,
5588                           scb->cdb[0],
5589                           scb->cmd.basic_io.command_id,
5590                           scb->bus, scb->target_id, scb->lun);
5591         } else {
5592                 DEBUG_VAR(2, KERN_NOTICE "(%s%d) ips_issue: logical cmd id %d",
5593                           ips_name, ha->host_num, scb->cmd.basic_io.command_id);
5594         }
5595
5596         TimeOut = 0;
5597
5598         while ((val =
5599                 le32_to_cpu(inl(ha->io_addr + IPS_REG_CCCR))) & IPS_BIT_SEM) {
5600                 udelay(1000);
5601
5602                 if (++TimeOut >= IPS_SEM_TIMEOUT) {
5603                         if (!(val & IPS_BIT_START_STOP))
5604                                 break;
5605
5606                         IPS_PRINTK(KERN_WARNING, ha->pcidev,
5607                                    "ips_issue val [0x%x].\n", val);
5608                         IPS_PRINTK(KERN_WARNING, ha->pcidev,
5609                                    "ips_issue semaphore chk timeout.\n");
5610
5611                         return (IPS_FAILURE);
5612                 }               /* end if */
5613         }                       /* end while */
5614
5615         outl(cpu_to_le32(scb->scb_busaddr), ha->io_addr + IPS_REG_CCSAR);
5616         outw(cpu_to_le32(IPS_BIT_START_CMD), ha->io_addr + IPS_REG_CCCR);
5617
5618         return (IPS_SUCCESS);
5619 }
5620
5621 /****************************************************************************/
5622 /*                                                                          */
5623 /* Routine Name: ips_issue_copperhead_memio                                 */
5624 /*                                                                          */
5625 /* Routine Description:                                                     */
5626 /*                                                                          */
5627 /*   Send a command down to the controller                                  */
5628 /*                                                                          */
5629 /****************************************************************************/
5630 static int
5631 ips_issue_copperhead_memio(ips_ha_t * ha, ips_scb_t * scb)
5632 {
5633         uint32_t TimeOut;
5634         uint32_t val;
5635
5636         METHOD_TRACE("ips_issue_copperhead_memio", 1);
5637
5638         if (scb->scsi_cmd) {
5639                 DEBUG_VAR(2, "(%s%d) ips_issue: cmd 0x%X id %d (%d %d %d)",
5640                           ips_name,
5641                           ha->host_num,
5642                           scb->cdb[0],
5643                           scb->cmd.basic_io.command_id,
5644                           scb->bus, scb->target_id, scb->lun);
5645         } else {
5646                 DEBUG_VAR(2, "(%s%d) ips_issue: logical cmd id %d",
5647                           ips_name, ha->host_num, scb->cmd.basic_io.command_id);
5648         }
5649
5650         TimeOut = 0;
5651
5652         while ((val = readl(ha->mem_ptr + IPS_REG_CCCR)) & IPS_BIT_SEM) {
5653                 udelay(1000);
5654
5655                 if (++TimeOut >= IPS_SEM_TIMEOUT) {
5656                         if (!(val & IPS_BIT_START_STOP))
5657                                 break;
5658
5659                         IPS_PRINTK(KERN_WARNING, ha->pcidev,
5660                                    "ips_issue val [0x%x].\n", val);
5661                         IPS_PRINTK(KERN_WARNING, ha->pcidev,
5662                                    "ips_issue semaphore chk timeout.\n");
5663
5664                         return (IPS_FAILURE);
5665                 }               /* end if */
5666         }                       /* end while */
5667
5668         writel(scb->scb_busaddr, ha->mem_ptr + IPS_REG_CCSAR);
5669         writel(IPS_BIT_START_CMD, ha->mem_ptr + IPS_REG_CCCR);
5670
5671         return (IPS_SUCCESS);
5672 }
5673
5674 /****************************************************************************/
5675 /*                                                                          */
5676 /* Routine Name: ips_issue_i2o                                              */
5677 /*                                                                          */
5678 /* Routine Description:                                                     */
5679 /*                                                                          */
5680 /*   Send a command down to the controller                                  */
5681 /*                                                                          */
5682 /****************************************************************************/
5683 static int
5684 ips_issue_i2o(ips_ha_t * ha, ips_scb_t * scb)
5685 {
5686
5687         METHOD_TRACE("ips_issue_i2o", 1);
5688
5689         if (scb->scsi_cmd) {
5690                 DEBUG_VAR(2, "(%s%d) ips_issue: cmd 0x%X id %d (%d %d %d)",
5691                           ips_name,
5692                           ha->host_num,
5693                           scb->cdb[0],
5694                           scb->cmd.basic_io.command_id,
5695                           scb->bus, scb->target_id, scb->lun);
5696         } else {
5697                 DEBUG_VAR(2, "(%s%d) ips_issue: logical cmd id %d",
5698                           ips_name, ha->host_num, scb->cmd.basic_io.command_id);
5699         }
5700
5701         outl(cpu_to_le32(scb->scb_busaddr), ha->io_addr + IPS_REG_I2O_INMSGQ);
5702
5703         return (IPS_SUCCESS);
5704 }
5705
5706 /****************************************************************************/
5707 /*                                                                          */
5708 /* Routine Name: ips_issue_i2o_memio                                        */
5709 /*                                                                          */
5710 /* Routine Description:                                                     */
5711 /*                                                                          */
5712 /*   Send a command down to the controller                                  */
5713 /*                                                                          */
5714 /****************************************************************************/
5715 static int
5716 ips_issue_i2o_memio(ips_ha_t * ha, ips_scb_t * scb)
5717 {
5718
5719         METHOD_TRACE("ips_issue_i2o_memio", 1);
5720
5721         if (scb->scsi_cmd) {
5722                 DEBUG_VAR(2, "(%s%d) ips_issue: cmd 0x%X id %d (%d %d %d)",
5723                           ips_name,
5724                           ha->host_num,
5725                           scb->cdb[0],
5726                           scb->cmd.basic_io.command_id,
5727                           scb->bus, scb->target_id, scb->lun);
5728         } else {
5729                 DEBUG_VAR(2, "(%s%d) ips_issue: logical cmd id %d",
5730                           ips_name, ha->host_num, scb->cmd.basic_io.command_id);
5731         }
5732
5733         writel(scb->scb_busaddr, ha->mem_ptr + IPS_REG_I2O_INMSGQ);
5734
5735         return (IPS_SUCCESS);
5736 }
5737
5738 /****************************************************************************/
5739 /*                                                                          */
5740 /* Routine Name: ips_isintr_copperhead                                      */
5741 /*                                                                          */
5742 /* Routine Description:                                                     */
5743 /*                                                                          */
5744 /*   Test to see if an interrupt is for us                                  */
5745 /*                                                                          */
5746 /****************************************************************************/
5747 static int
5748 ips_isintr_copperhead(ips_ha_t * ha)
5749 {
5750         uint8_t Isr;
5751
5752         METHOD_TRACE("ips_isintr_copperhead", 2);
5753
5754         Isr = inb(ha->io_addr + IPS_REG_HISR);
5755
5756         if (Isr == 0xFF)
5757                 /* ?!?! Nothing really there */
5758                 return (0);
5759
5760         if (Isr & IPS_BIT_SCE)
5761                 return (1);
5762         else if (Isr & (IPS_BIT_SQO | IPS_BIT_GHI)) {
5763                 /* status queue overflow or GHI */
5764                 /* just clear the interrupt */
5765                 outb(Isr, ha->io_addr + IPS_REG_HISR);
5766         }
5767
5768         return (0);
5769 }
5770
5771 /****************************************************************************/
5772 /*                                                                          */
5773 /* Routine Name: ips_isintr_copperhead_memio                                */
5774 /*                                                                          */
5775 /* Routine Description:                                                     */
5776 /*                                                                          */
5777 /*   Test to see if an interrupt is for us                                  */
5778 /*                                                                          */
5779 /****************************************************************************/
5780 static int
5781 ips_isintr_copperhead_memio(ips_ha_t * ha)
5782 {
5783         uint8_t Isr;
5784
5785         METHOD_TRACE("ips_isintr_memio", 2);
5786
5787         Isr = readb(ha->mem_ptr + IPS_REG_HISR);
5788
5789         if (Isr == 0xFF)
5790                 /* ?!?! Nothing really there */
5791                 return (0);
5792
5793         if (Isr & IPS_BIT_SCE)
5794                 return (1);
5795         else if (Isr & (IPS_BIT_SQO | IPS_BIT_GHI)) {
5796                 /* status queue overflow or GHI */
5797                 /* just clear the interrupt */
5798                 writeb(Isr, ha->mem_ptr + IPS_REG_HISR);
5799         }
5800
5801         return (0);
5802 }
5803
5804 /****************************************************************************/
5805 /*                                                                          */
5806 /* Routine Name: ips_isintr_morpheus                                        */
5807 /*                                                                          */
5808 /* Routine Description:                                                     */
5809 /*                                                                          */
5810 /*   Test to see if an interrupt is for us                                  */
5811 /*                                                                          */
5812 /****************************************************************************/
5813 static int
5814 ips_isintr_morpheus(ips_ha_t * ha)
5815 {
5816         uint32_t Isr;
5817
5818         METHOD_TRACE("ips_isintr_morpheus", 2);
5819
5820         Isr = readl(ha->mem_ptr + IPS_REG_I2O_HIR);
5821
5822         if (Isr & IPS_BIT_I2O_OPQI)
5823                 return (1);
5824         else
5825                 return (0);
5826 }
5827
5828 /****************************************************************************/
5829 /*                                                                          */
5830 /* Routine Name: ips_wait                                                   */
5831 /*                                                                          */
5832 /* Routine Description:                                                     */
5833 /*                                                                          */
5834 /*   Wait for a command to complete                                         */
5835 /*                                                                          */
5836 /****************************************************************************/
5837 static int
5838 ips_wait(ips_ha_t * ha, int time, int intr)
5839 {
5840         int ret;
5841         int done;
5842
5843         METHOD_TRACE("ips_wait", 1);
5844
5845         ret = IPS_FAILURE;
5846         done = FALSE;
5847
5848         time *= IPS_ONE_SEC;    /* convert seconds */
5849
5850         while ((time > 0) && (!done)) {
5851                 if (intr == IPS_INTR_ON) {
5852                         if (ha->waitflag == FALSE) {
5853                                 ret = IPS_SUCCESS;
5854                                 done = TRUE;
5855                                 break;
5856                         }
5857                 } else if (intr == IPS_INTR_IORL) {
5858                         if (ha->waitflag == FALSE) {
5859                                 /*
5860                                  * controller generated an interrupt to
5861                                  * acknowledge completion of the command
5862                                  * and ips_intr() has serviced the interrupt.
5863                                  */
5864                                 ret = IPS_SUCCESS;
5865                                 done = TRUE;
5866                                 break;
5867                         }
5868
5869                         /*
5870                          * NOTE: we already have the io_request_lock so
5871                          * even if we get an interrupt it won't get serviced
5872                          * until after we finish.
5873                          */
5874
5875                         (*ha->func.intr) (ha);
5876                 }
5877
5878                 /* This looks like a very evil loop, but it only does this during start-up */
5879                 udelay(1000);
5880                 time--;
5881         }
5882
5883         return (ret);
5884 }
5885
5886 /****************************************************************************/
5887 /*                                                                          */
5888 /* Routine Name: ips_write_driver_status                                    */
5889 /*                                                                          */
5890 /* Routine Description:                                                     */
5891 /*                                                                          */
5892 /*   Write OS/Driver version to Page 5 of the nvram on the controller       */
5893 /*                                                                          */
5894 /****************************************************************************/
5895 static int
5896 ips_write_driver_status(ips_ha_t * ha, int intr)
5897 {
5898         METHOD_TRACE("ips_write_driver_status", 1);
5899
5900         if (!ips_readwrite_page5(ha, FALSE, intr)) {
5901                 IPS_PRINTK(KERN_WARNING, ha->pcidev,
5902                            "unable to read NVRAM page 5.\n");
5903
5904                 return (0);
5905         }
5906
5907         /* check to make sure the page has a valid */
5908         /* signature */
5909         if (le32_to_cpu(ha->nvram->signature) != IPS_NVRAM_P5_SIG) {
5910                 DEBUG_VAR(1,
5911                           "(%s%d) NVRAM page 5 has an invalid signature: %X.",
5912                           ips_name, ha->host_num, ha->nvram->signature);
5913                 ha->nvram->signature = IPS_NVRAM_P5_SIG;
5914         }
5915
5916         DEBUG_VAR(2,
5917                   "(%s%d) Ad Type: %d, Ad Slot: %d, BIOS: %c%c%c%c %c%c%c%c.",
5918                   ips_name, ha->host_num, le16_to_cpu(ha->nvram->adapter_type),
5919                   ha->nvram->adapter_slot, ha->nvram->bios_high[0],
5920                   ha->nvram->bios_high[1], ha->nvram->bios_high[2],
5921                   ha->nvram->bios_high[3], ha->nvram->bios_low[0],
5922                   ha->nvram->bios_low[1], ha->nvram->bios_low[2],
5923                   ha->nvram->bios_low[3]);
5924
5925         ips_get_bios_version(ha, intr);
5926
5927         /* change values (as needed) */
5928         ha->nvram->operating_system = IPS_OS_LINUX;
5929         ha->nvram->adapter_type = ha->ad_type;
5930         strncpy((char *) ha->nvram->driver_high, IPS_VERSION_HIGH, 4);
5931         strncpy((char *) ha->nvram->driver_low, IPS_VERSION_LOW, 4);
5932         strncpy((char *) ha->nvram->bios_high, ha->bios_version, 4);
5933         strncpy((char *) ha->nvram->bios_low, ha->bios_version + 4, 4);
5934
5935         ha->nvram->versioning = 0;      /* Indicate the Driver Does Not Support Versioning */
5936
5937         /* now update the page */
5938         if (!ips_readwrite_page5(ha, TRUE, intr)) {
5939                 IPS_PRINTK(KERN_WARNING, ha->pcidev,
5940                            "unable to write NVRAM page 5.\n");
5941
5942                 return (0);
5943         }
5944
5945         /* IF NVRAM Page 5 is OK, Use it for Slot Number Info Because Linux Doesn't Do Slots */
5946         ha->slot_num = ha->nvram->adapter_slot;
5947
5948         return (1);
5949 }
5950
5951 /****************************************************************************/
5952 /*                                                                          */
5953 /* Routine Name: ips_read_adapter_status                                    */
5954 /*                                                                          */
5955 /* Routine Description:                                                     */
5956 /*                                                                          */
5957 /*   Do an Inquiry command to the adapter                                   */
5958 /*                                                                          */
5959 /****************************************************************************/
5960 static int
5961 ips_read_adapter_status(ips_ha_t * ha, int intr)
5962 {
5963         ips_scb_t *scb;
5964         int ret;
5965
5966         METHOD_TRACE("ips_read_adapter_status", 1);
5967
5968         scb = &ha->scbs[ha->max_cmds - 1];
5969
5970         ips_init_scb(ha, scb);
5971
5972         scb->timeout = ips_cmd_timeout;
5973         scb->cdb[0] = IPS_CMD_ENQUIRY;
5974
5975         scb->cmd.basic_io.op_code = IPS_CMD_ENQUIRY;
5976         scb->cmd.basic_io.command_id = IPS_COMMAND_ID(ha, scb);
5977         scb->cmd.basic_io.sg_count = 0;
5978         scb->cmd.basic_io.lba = 0;
5979         scb->cmd.basic_io.sector_count = 0;
5980         scb->cmd.basic_io.log_drv = 0;
5981         scb->data_len = sizeof (*ha->enq);
5982         scb->cmd.basic_io.sg_addr = ha->enq_busaddr;
5983
5984         /* send command */
5985         if (((ret =
5986               ips_send_wait(ha, scb, ips_cmd_timeout, intr)) == IPS_FAILURE)
5987             || (ret == IPS_SUCCESS_IMM)
5988             || ((scb->basic_status & IPS_GSC_STATUS_MASK) > 1))
5989                 return (0);
5990
5991         return (1);
5992 }
5993
5994 /****************************************************************************/
5995 /*                                                                          */
5996 /* Routine Name: ips_read_subsystem_parameters                              */
5997 /*                                                                          */
5998 /* Routine Description:                                                     */
5999 /*                                                                          */
6000 /*   Read subsystem parameters from the adapter                             */
6001 /*                                                                          */
6002 /****************************************************************************/
6003 static int
6004 ips_read_subsystem_parameters(ips_ha_t * ha, int intr)
6005 {
6006         ips_scb_t *scb;
6007         int ret;
6008
6009         METHOD_TRACE("ips_read_subsystem_parameters", 1);
6010
6011         scb = &ha->scbs[ha->max_cmds - 1];
6012
6013         ips_init_scb(ha, scb);
6014
6015         scb->timeout = ips_cmd_timeout;
6016         scb->cdb[0] = IPS_CMD_GET_SUBSYS;
6017
6018         scb->cmd.basic_io.op_code = IPS_CMD_GET_SUBSYS;
6019         scb->cmd.basic_io.command_id = IPS_COMMAND_ID(ha, scb);
6020         scb->cmd.basic_io.sg_count = 0;
6021         scb->cmd.basic_io.lba = 0;
6022         scb->cmd.basic_io.sector_count = 0;
6023         scb->cmd.basic_io.log_drv = 0;
6024         scb->data_len = sizeof (*ha->subsys);
6025         scb->cmd.basic_io.sg_addr = ha->ioctl_busaddr;
6026
6027         /* send command */
6028         if (((ret =
6029               ips_send_wait(ha, scb, ips_cmd_timeout, intr)) == IPS_FAILURE)
6030             || (ret == IPS_SUCCESS_IMM)
6031             || ((scb->basic_status & IPS_GSC_STATUS_MASK) > 1))
6032                 return (0);
6033
6034         memcpy(ha->subsys, ha->ioctl_data, sizeof(*ha->subsys));
6035         return (1);
6036 }
6037
6038 /****************************************************************************/
6039 /*                                                                          */
6040 /* Routine Name: ips_read_config                                            */
6041 /*                                                                          */
6042 /* Routine Description:                                                     */
6043 /*                                                                          */
6044 /*   Read the configuration on the adapter                                  */
6045 /*                                                                          */
6046 /****************************************************************************/
6047 static int
6048 ips_read_config(ips_ha_t * ha, int intr)
6049 {
6050         ips_scb_t *scb;
6051         int i;
6052         int ret;
6053
6054         METHOD_TRACE("ips_read_config", 1);
6055
6056         /* set defaults for initiator IDs */
6057         for (i = 0; i < 4; i++)
6058                 ha->conf->init_id[i] = 7;
6059
6060         scb = &ha->scbs[ha->max_cmds - 1];
6061
6062         ips_init_scb(ha, scb);
6063
6064         scb->timeout = ips_cmd_timeout;
6065         scb->cdb[0] = IPS_CMD_READ_CONF;
6066
6067         scb->cmd.basic_io.op_code = IPS_CMD_READ_CONF;
6068         scb->cmd.basic_io.command_id = IPS_COMMAND_ID(ha, scb);
6069         scb->data_len = sizeof (*ha->conf);
6070         scb->cmd.basic_io.sg_addr = ha->ioctl_busaddr;
6071
6072         /* send command */
6073         if (((ret =
6074               ips_send_wait(ha, scb, ips_cmd_timeout, intr)) == IPS_FAILURE)
6075             || (ret == IPS_SUCCESS_IMM)
6076             || ((scb->basic_status & IPS_GSC_STATUS_MASK) > 1)) {
6077
6078                 memset(ha->conf, 0, sizeof (IPS_CONF));
6079
6080                 /* reset initiator IDs */
6081                 for (i = 0; i < 4; i++)
6082                         ha->conf->init_id[i] = 7;
6083
6084                 /* Allow Completed with Errors, so JCRM can access the Adapter to fix the problems */
6085                 if ((scb->basic_status & IPS_GSC_STATUS_MASK) ==
6086                     IPS_CMD_CMPLT_WERROR)
6087                         return (1);
6088
6089                 return (0);
6090         }
6091
6092         memcpy(ha->conf, ha->ioctl_data, sizeof(*ha->conf));
6093         return (1);
6094 }
6095
6096 /****************************************************************************/
6097 /*                                                                          */
6098 /* Routine Name: ips_readwrite_page5                                        */
6099 /*                                                                          */
6100 /* Routine Description:                                                     */
6101 /*                                                                          */
6102 /*   Read nvram page 5 from the adapter                                     */
6103 /*                                                                          */
6104 /****************************************************************************/
6105 static int
6106 ips_readwrite_page5(ips_ha_t * ha, int write, int intr)
6107 {
6108         ips_scb_t *scb;
6109         int ret;
6110
6111         METHOD_TRACE("ips_readwrite_page5", 1);
6112
6113         scb = &ha->scbs[ha->max_cmds - 1];
6114
6115         ips_init_scb(ha, scb);
6116
6117         scb->timeout = ips_cmd_timeout;
6118         scb->cdb[0] = IPS_CMD_RW_NVRAM_PAGE;
6119
6120         scb->cmd.nvram.op_code = IPS_CMD_RW_NVRAM_PAGE;
6121         scb->cmd.nvram.command_id = IPS_COMMAND_ID(ha, scb);
6122         scb->cmd.nvram.page = 5;
6123         scb->cmd.nvram.write = write;
6124         scb->cmd.nvram.reserved = 0;
6125         scb->cmd.nvram.reserved2 = 0;
6126         scb->data_len = sizeof (*ha->nvram);
6127         scb->cmd.nvram.buffer_addr = ha->ioctl_busaddr;
6128         if (write)
6129                 memcpy(ha->ioctl_data, ha->nvram, sizeof(*ha->nvram));
6130
6131         /* issue the command */
6132         if (((ret =
6133               ips_send_wait(ha, scb, ips_cmd_timeout, intr)) == IPS_FAILURE)
6134             || (ret == IPS_SUCCESS_IMM)
6135             || ((scb->basic_status & IPS_GSC_STATUS_MASK) > 1)) {
6136
6137                 memset(ha->nvram, 0, sizeof (IPS_NVRAM_P5));
6138
6139                 return (0);
6140         }
6141         if (!write)
6142                 memcpy(ha->nvram, ha->ioctl_data, sizeof(*ha->nvram));
6143         return (1);
6144 }
6145
6146 /****************************************************************************/
6147 /*                                                                          */
6148 /* Routine Name: ips_clear_adapter                                          */
6149 /*                                                                          */
6150 /* Routine Description:                                                     */
6151 /*                                                                          */
6152 /*   Clear the stripe lock tables                                           */
6153 /*                                                                          */
6154 /****************************************************************************/
6155 static int
6156 ips_clear_adapter(ips_ha_t * ha, int intr)
6157 {
6158         ips_scb_t *scb;
6159         int ret;
6160
6161         METHOD_TRACE("ips_clear_adapter", 1);
6162
6163         scb = &ha->scbs[ha->max_cmds - 1];
6164
6165         ips_init_scb(ha, scb);
6166
6167         scb->timeout = ips_reset_timeout;
6168         scb->cdb[0] = IPS_CMD_CONFIG_SYNC;
6169
6170         scb->cmd.config_sync.op_code = IPS_CMD_CONFIG_SYNC;
6171         scb->cmd.config_sync.command_id = IPS_COMMAND_ID(ha, scb);
6172         scb->cmd.config_sync.channel = 0;
6173         scb->cmd.config_sync.source_target = IPS_POCL;
6174         scb->cmd.config_sync.reserved = 0;
6175         scb->cmd.config_sync.reserved2 = 0;
6176         scb->cmd.config_sync.reserved3 = 0;
6177
6178         /* issue command */
6179         if (((ret =
6180               ips_send_wait(ha, scb, ips_reset_timeout, intr)) == IPS_FAILURE)
6181             || (ret == IPS_SUCCESS_IMM)
6182             || ((scb->basic_status & IPS_GSC_STATUS_MASK) > 1))
6183                 return (0);
6184
6185         /* send unlock stripe command */
6186         ips_init_scb(ha, scb);
6187
6188         scb->cdb[0] = IPS_CMD_ERROR_TABLE;
6189         scb->timeout = ips_reset_timeout;
6190
6191         scb->cmd.unlock_stripe.op_code = IPS_CMD_ERROR_TABLE;
6192         scb->cmd.unlock_stripe.command_id = IPS_COMMAND_ID(ha, scb);
6193         scb->cmd.unlock_stripe.log_drv = 0;
6194         scb->cmd.unlock_stripe.control = IPS_CSL;
6195         scb->cmd.unlock_stripe.reserved = 0;
6196         scb->cmd.unlock_stripe.reserved2 = 0;
6197         scb->cmd.unlock_stripe.reserved3 = 0;
6198
6199         /* issue command */
6200         if (((ret =
6201               ips_send_wait(ha, scb, ips_cmd_timeout, intr)) == IPS_FAILURE)
6202             || (ret == IPS_SUCCESS_IMM)
6203             || ((scb->basic_status & IPS_GSC_STATUS_MASK) > 1))
6204                 return (0);
6205
6206         return (1);
6207 }
6208
6209 /****************************************************************************/
6210 /*                                                                          */
6211 /* Routine Name: ips_ffdc_reset                                             */
6212 /*                                                                          */
6213 /* Routine Description:                                                     */
6214 /*                                                                          */
6215 /*   FFDC: write reset info                                                 */
6216 /*                                                                          */
6217 /****************************************************************************/
6218 static void
6219 ips_ffdc_reset(ips_ha_t * ha, int intr)
6220 {
6221         ips_scb_t *scb;
6222
6223         METHOD_TRACE("ips_ffdc_reset", 1);
6224
6225         scb = &ha->scbs[ha->max_cmds - 1];
6226
6227         ips_init_scb(ha, scb);
6228
6229         scb->timeout = ips_cmd_timeout;
6230         scb->cdb[0] = IPS_CMD_FFDC;
6231         scb->cmd.ffdc.op_code = IPS_CMD_FFDC;
6232         scb->cmd.ffdc.command_id = IPS_COMMAND_ID(ha, scb);
6233         scb->cmd.ffdc.reset_count = ha->reset_count;
6234         scb->cmd.ffdc.reset_type = 0x80;
6235
6236         /* convert time to what the card wants */
6237         ips_fix_ffdc_time(ha, scb, ha->last_ffdc);
6238
6239         /* issue command */
6240         ips_send_wait(ha, scb, ips_cmd_timeout, intr);
6241 }
6242
6243 /****************************************************************************/
6244 /*                                                                          */
6245 /* Routine Name: ips_ffdc_time                                              */
6246 /*                                                                          */
6247 /* Routine Description:                                                     */
6248 /*                                                                          */
6249 /*   FFDC: write time info                                                  */
6250 /*                                                                          */
6251 /****************************************************************************/
6252 static void
6253 ips_ffdc_time(ips_ha_t * ha)
6254 {
6255         ips_scb_t *scb;
6256
6257         METHOD_TRACE("ips_ffdc_time", 1);
6258
6259         DEBUG_VAR(1, "(%s%d) Sending time update.", ips_name, ha->host_num);
6260
6261         scb = &ha->scbs[ha->max_cmds - 1];
6262
6263         ips_init_scb(ha, scb);
6264
6265         scb->timeout = ips_cmd_timeout;
6266         scb->cdb[0] = IPS_CMD_FFDC;
6267         scb->cmd.ffdc.op_code = IPS_CMD_FFDC;
6268         scb->cmd.ffdc.command_id = IPS_COMMAND_ID(ha, scb);
6269         scb->cmd.ffdc.reset_count = 0;
6270         scb->cmd.ffdc.reset_type = 0;
6271
6272         /* convert time to what the card wants */
6273         ips_fix_ffdc_time(ha, scb, ha->last_ffdc);
6274
6275         /* issue command */
6276         ips_send_wait(ha, scb, ips_cmd_timeout, IPS_FFDC);
6277 }
6278
6279 /****************************************************************************/
6280 /*                                                                          */
6281 /* Routine Name: ips_fix_ffdc_time                                          */
6282 /*                                                                          */
6283 /* Routine Description:                                                     */
6284 /*   Adjust time_t to what the card wants                                   */
6285 /*                                                                          */
6286 /****************************************************************************/
6287 static void
6288 ips_fix_ffdc_time(ips_ha_t * ha, ips_scb_t * scb, time_t current_time)
6289 {
6290         long days;
6291         long rem;
6292         int i;
6293         int year;
6294         int yleap;
6295         int year_lengths[2] = { IPS_DAYS_NORMAL_YEAR, IPS_DAYS_LEAP_YEAR };
6296         int month_lengths[12][2] = { {31, 31},
6297         {28, 29},
6298         {31, 31},
6299         {30, 30},
6300         {31, 31},
6301         {30, 30},
6302         {31, 31},
6303         {31, 31},
6304         {30, 30},
6305         {31, 31},
6306         {30, 30},
6307         {31, 31}
6308         };
6309
6310         METHOD_TRACE("ips_fix_ffdc_time", 1);
6311
6312         days = current_time / IPS_SECS_DAY;
6313         rem = current_time % IPS_SECS_DAY;
6314
6315         scb->cmd.ffdc.hour = (rem / IPS_SECS_HOUR);
6316         rem = rem % IPS_SECS_HOUR;
6317         scb->cmd.ffdc.minute = (rem / IPS_SECS_MIN);
6318         scb->cmd.ffdc.second = (rem % IPS_SECS_MIN);
6319
6320         year = IPS_EPOCH_YEAR;
6321         while (days < 0 || days >= year_lengths[yleap = IPS_IS_LEAP_YEAR(year)]) {
6322                 int newy;
6323
6324                 newy = year + (days / IPS_DAYS_NORMAL_YEAR);
6325                 if (days < 0)
6326                         --newy;
6327                 days -= (newy - year) * IPS_DAYS_NORMAL_YEAR +
6328                     IPS_NUM_LEAP_YEARS_THROUGH(newy - 1) -
6329                     IPS_NUM_LEAP_YEARS_THROUGH(year - 1);
6330                 year = newy;
6331         }
6332
6333         scb->cmd.ffdc.yearH = year / 100;
6334         scb->cmd.ffdc.yearL = year % 100;
6335
6336         for (i = 0; days >= month_lengths[i][yleap]; ++i)
6337                 days -= month_lengths[i][yleap];
6338
6339         scb->cmd.ffdc.month = i + 1;
6340         scb->cmd.ffdc.day = days + 1;
6341 }
6342
6343 /****************************************************************************
6344  * BIOS Flash Routines                                                      *
6345  ****************************************************************************/
6346
6347 /****************************************************************************/
6348 /*                                                                          */
6349 /* Routine Name: ips_erase_bios                                             */
6350 /*                                                                          */
6351 /* Routine Description:                                                     */
6352 /*   Erase the BIOS on the adapter                                          */
6353 /*                                                                          */
6354 /****************************************************************************/
6355 static int
6356 ips_erase_bios(ips_ha_t * ha)
6357 {
6358         int timeout;
6359         uint8_t status = 0;
6360
6361         METHOD_TRACE("ips_erase_bios", 1);
6362
6363         status = 0;
6364
6365         /* Clear the status register */
6366         outl(0, ha->io_addr + IPS_REG_FLAP);
6367         if (ha->revision_id == IPS_REVID_TROMBONE64)
6368                 udelay(25);     /* 25 us */
6369
6370         outb(0x50, ha->io_addr + IPS_REG_FLDP);
6371         if (ha->revision_id == IPS_REVID_TROMBONE64)
6372                 udelay(25);     /* 25 us */
6373
6374         /* Erase Setup */
6375         outb(0x20, ha->io_addr + IPS_REG_FLDP);
6376         if (ha->revision_id == IPS_REVID_TROMBONE64)
6377                 udelay(25);     /* 25 us */
6378
6379         /* Erase Confirm */
6380         outb(0xD0, ha->io_addr + IPS_REG_FLDP);
6381         if (ha->revision_id == IPS_REVID_TROMBONE64)
6382                 udelay(25);     /* 25 us */
6383
6384         /* Erase Status */
6385         outb(0x70, ha->io_addr + IPS_REG_FLDP);
6386         if (ha->revision_id == IPS_REVID_TROMBONE64)
6387                 udelay(25);     /* 25 us */
6388
6389         timeout = 80000;        /* 80 seconds */
6390
6391         while (timeout > 0) {
6392                 if (ha->revision_id == IPS_REVID_TROMBONE64) {
6393                         outl(0, ha->io_addr + IPS_REG_FLAP);
6394                         udelay(25);     /* 25 us */
6395                 }
6396
6397                 status = inb(ha->io_addr + IPS_REG_FLDP);
6398
6399                 if (status & 0x80)
6400                         break;
6401
6402                 MDELAY(1);
6403                 timeout--;
6404         }
6405
6406         /* check for timeout */
6407         if (timeout <= 0) {
6408                 /* timeout */
6409
6410                 /* try to suspend the erase */
6411                 outb(0xB0, ha->io_addr + IPS_REG_FLDP);
6412                 if (ha->revision_id == IPS_REVID_TROMBONE64)
6413                         udelay(25);     /* 25 us */
6414
6415                 /* wait for 10 seconds */
6416                 timeout = 10000;
6417                 while (timeout > 0) {
6418                         if (ha->revision_id == IPS_REVID_TROMBONE64) {
6419                                 outl(0, ha->io_addr + IPS_REG_FLAP);
6420                                 udelay(25);     /* 25 us */
6421                         }
6422
6423                         status = inb(ha->io_addr + IPS_REG_FLDP);
6424
6425                         if (status & 0xC0)
6426                                 break;
6427
6428                         MDELAY(1);
6429                         timeout--;
6430                 }
6431
6432                 return (1);
6433         }
6434
6435         /* check for valid VPP */
6436         if (status & 0x08)
6437                 /* VPP failure */
6438                 return (1);
6439
6440         /* check for succesful flash */
6441         if (status & 0x30)
6442                 /* sequence error */
6443                 return (1);
6444
6445         /* Otherwise, we were successful */
6446         /* clear status */
6447         outb(0x50, ha->io_addr + IPS_REG_FLDP);
6448         if (ha->revision_id == IPS_REVID_TROMBONE64)
6449                 udelay(25);     /* 25 us */
6450
6451         /* enable reads */
6452         outb(0xFF, ha->io_addr + IPS_REG_FLDP);
6453         if (ha->revision_id == IPS_REVID_TROMBONE64)
6454                 udelay(25);     /* 25 us */
6455
6456         return (0);
6457 }
6458
6459 /****************************************************************************/
6460 /*                                                                          */
6461 /* Routine Name: ips_erase_bios_memio                                       */
6462 /*                                                                          */
6463 /* Routine Description:                                                     */
6464 /*   Erase the BIOS on the adapter                                          */
6465 /*                                                                          */
6466 /****************************************************************************/
6467 static int
6468 ips_erase_bios_memio(ips_ha_t * ha)
6469 {
6470         int timeout;
6471         uint8_t status;
6472
6473         METHOD_TRACE("ips_erase_bios_memio", 1);
6474
6475         status = 0;
6476
6477         /* Clear the status register */
6478         writel(0, ha->mem_ptr + IPS_REG_FLAP);
6479         if (ha->revision_id == IPS_REVID_TROMBONE64)
6480                 udelay(25);     /* 25 us */
6481
6482         writeb(0x50, ha->mem_ptr + IPS_REG_FLDP);
6483         if (ha->revision_id == IPS_REVID_TROMBONE64)
6484                 udelay(25);     /* 25 us */
6485
6486         /* Erase Setup */
6487         writeb(0x20, ha->mem_ptr + IPS_REG_FLDP);
6488         if (ha->revision_id == IPS_REVID_TROMBONE64)
6489                 udelay(25);     /* 25 us */
6490
6491         /* Erase Confirm */
6492         writeb(0xD0, ha->mem_ptr + IPS_REG_FLDP);
6493         if (ha->revision_id == IPS_REVID_TROMBONE64)
6494                 udelay(25);     /* 25 us */
6495
6496         /* Erase Status */
6497         writeb(0x70, ha->mem_ptr + IPS_REG_FLDP);
6498         if (ha->revision_id == IPS_REVID_TROMBONE64)
6499                 udelay(25);     /* 25 us */
6500
6501         timeout = 80000;        /* 80 seconds */
6502
6503         while (timeout > 0) {
6504                 if (ha->revision_id == IPS_REVID_TROMBONE64) {
6505                         writel(0, ha->mem_ptr + IPS_REG_FLAP);
6506                         udelay(25);     /* 25 us */
6507                 }
6508
6509                 status = readb(ha->mem_ptr + IPS_REG_FLDP);
6510
6511                 if (status & 0x80)
6512                         break;
6513
6514                 MDELAY(1);
6515                 timeout--;
6516         }
6517
6518         /* check for timeout */
6519         if (timeout <= 0) {
6520                 /* timeout */
6521
6522                 /* try to suspend the erase */
6523                 writeb(0xB0, ha->mem_ptr + IPS_REG_FLDP);
6524                 if (ha->revision_id == IPS_REVID_TROMBONE64)
6525                         udelay(25);     /* 25 us */
6526
6527                 /* wait for 10 seconds */
6528                 timeout = 10000;
6529                 while (timeout > 0) {
6530                         if (ha->revision_id == IPS_REVID_TROMBONE64) {
6531                                 writel(0, ha->mem_ptr + IPS_REG_FLAP);
6532                                 udelay(25);     /* 25 us */
6533                         }
6534
6535                         status = readb(ha->mem_ptr + IPS_REG_FLDP);
6536
6537                         if (status & 0xC0)
6538                                 break;
6539
6540                         MDELAY(1);
6541                         timeout--;
6542                 }
6543
6544                 return (1);
6545         }
6546
6547         /* check for valid VPP */
6548         if (status & 0x08)
6549                 /* VPP failure */
6550                 return (1);
6551
6552         /* check for succesful flash */
6553         if (status & 0x30)
6554                 /* sequence error */
6555                 return (1);
6556
6557         /* Otherwise, we were successful */
6558         /* clear status */
6559         writeb(0x50, ha->mem_ptr + IPS_REG_FLDP);
6560         if (ha->revision_id == IPS_REVID_TROMBONE64)
6561                 udelay(25);     /* 25 us */
6562
6563         /* enable reads */
6564         writeb(0xFF, ha->mem_ptr + IPS_REG_FLDP);
6565         if (ha->revision_id == IPS_REVID_TROMBONE64)
6566                 udelay(25);     /* 25 us */
6567
6568         return (0);
6569 }
6570
6571 /****************************************************************************/
6572 /*                                                                          */
6573 /* Routine Name: ips_program_bios                                           */
6574 /*                                                                          */
6575 /* Routine Description:                                                     */
6576 /*   Program the BIOS on the adapter                                        */
6577 /*                                                                          */
6578 /****************************************************************************/
6579 static int
6580 ips_program_bios(ips_ha_t * ha, char *buffer, uint32_t buffersize,
6581                  uint32_t offset)
6582 {
6583         int i;
6584         int timeout;
6585         uint8_t status = 0;
6586
6587         METHOD_TRACE("ips_program_bios", 1);
6588
6589         status = 0;
6590
6591         for (i = 0; i < buffersize; i++) {
6592                 /* write a byte */
6593                 outl(cpu_to_le32(i + offset), ha->io_addr + IPS_REG_FLAP);
6594                 if (ha->revision_id == IPS_REVID_TROMBONE64)
6595                         udelay(25);     /* 25 us */
6596
6597                 outb(0x40, ha->io_addr + IPS_REG_FLDP);
6598                 if (ha->revision_id == IPS_REVID_TROMBONE64)
6599                         udelay(25);     /* 25 us */
6600
6601                 outb(buffer[i], ha->io_addr + IPS_REG_FLDP);
6602                 if (ha->revision_id == IPS_REVID_TROMBONE64)
6603                         udelay(25);     /* 25 us */
6604
6605                 /* wait up to one second */
6606                 timeout = 1000;
6607                 while (timeout > 0) {
6608                         if (ha->revision_id == IPS_REVID_TROMBONE64) {
6609                                 outl(0, ha->io_addr + IPS_REG_FLAP);
6610                                 udelay(25);     /* 25 us */
6611                         }
6612
6613                         status = inb(ha->io_addr + IPS_REG_FLDP);
6614
6615                         if (status & 0x80)
6616                                 break;
6617
6618                         MDELAY(1);
6619                         timeout--;
6620                 }
6621
6622                 if (timeout == 0) {
6623                         /* timeout error */
6624                         outl(0, ha->io_addr + IPS_REG_FLAP);
6625                         if (ha->revision_id == IPS_REVID_TROMBONE64)
6626                                 udelay(25);     /* 25 us */
6627
6628                         outb(0xFF, ha->io_addr + IPS_REG_FLDP);
6629                         if (ha->revision_id == IPS_REVID_TROMBONE64)
6630                                 udelay(25);     /* 25 us */
6631
6632                         return (1);
6633                 }
6634
6635                 /* check the status */
6636                 if (status & 0x18) {
6637                         /* programming error */
6638                         outl(0, ha->io_addr + IPS_REG_FLAP);
6639                         if (ha->revision_id == IPS_REVID_TROMBONE64)
6640                                 udelay(25);     /* 25 us */
6641
6642                         outb(0xFF, ha->io_addr + IPS_REG_FLDP);
6643                         if (ha->revision_id == IPS_REVID_TROMBONE64)
6644                                 udelay(25);     /* 25 us */
6645
6646                         return (1);
6647                 }
6648         }                       /* end for */
6649
6650         /* Enable reading */
6651         outl(0, ha->io_addr + IPS_REG_FLAP);
6652         if (ha->revision_id == IPS_REVID_TROMBONE64)
6653                 udelay(25);     /* 25 us */
6654
6655         outb(0xFF, ha->io_addr + IPS_REG_FLDP);
6656         if (ha->revision_id == IPS_REVID_TROMBONE64)
6657                 udelay(25);     /* 25 us */
6658
6659         return (0);
6660 }
6661
6662 /****************************************************************************/
6663 /*                                                                          */
6664 /* Routine Name: ips_program_bios_memio                                     */
6665 /*                                                                          */
6666 /* Routine Description:                                                     */
6667 /*   Program the BIOS on the adapter                                        */
6668 /*                                                                          */
6669 /****************************************************************************/
6670 static int
6671 ips_program_bios_memio(ips_ha_t * ha, char *buffer, uint32_t buffersize,
6672                        uint32_t offset)
6673 {
6674         int i;
6675         int timeout;
6676         uint8_t status = 0;
6677
6678         METHOD_TRACE("ips_program_bios_memio", 1);
6679
6680         status = 0;
6681
6682         for (i = 0; i < buffersize; i++) {
6683                 /* write a byte */
6684                 writel(i + offset, ha->mem_ptr + IPS_REG_FLAP);
6685                 if (ha->revision_id == IPS_REVID_TROMBONE64)
6686                         udelay(25);     /* 25 us */
6687
6688                 writeb(0x40, ha->mem_ptr + IPS_REG_FLDP);
6689                 if (ha->revision_id == IPS_REVID_TROMBONE64)
6690                         udelay(25);     /* 25 us */
6691
6692                 writeb(buffer[i], ha->mem_ptr + IPS_REG_FLDP);
6693                 if (ha->revision_id == IPS_REVID_TROMBONE64)
6694                         udelay(25);     /* 25 us */
6695
6696                 /* wait up to one second */
6697                 timeout = 1000;
6698                 while (timeout > 0) {
6699                         if (ha->revision_id == IPS_REVID_TROMBONE64) {
6700                                 writel(0, ha->mem_ptr + IPS_REG_FLAP);
6701                                 udelay(25);     /* 25 us */
6702                         }
6703
6704                         status = readb(ha->mem_ptr + IPS_REG_FLDP);
6705
6706                         if (status & 0x80)
6707                                 break;
6708
6709                         MDELAY(1);
6710                         timeout--;
6711                 }
6712
6713                 if (timeout == 0) {
6714                         /* timeout error */
6715                         writel(0, ha->mem_ptr + IPS_REG_FLAP);
6716                         if (ha->revision_id == IPS_REVID_TROMBONE64)
6717                                 udelay(25);     /* 25 us */
6718
6719                         writeb(0xFF, ha->mem_ptr + IPS_REG_FLDP);
6720                         if (ha->revision_id == IPS_REVID_TROMBONE64)
6721                                 udelay(25);     /* 25 us */
6722
6723                         return (1);
6724                 }
6725
6726                 /* check the status */
6727                 if (status & 0x18) {
6728                         /* programming error */
6729                         writel(0, ha->mem_ptr + IPS_REG_FLAP);
6730                         if (ha->revision_id == IPS_REVID_TROMBONE64)
6731                                 udelay(25);     /* 25 us */
6732
6733                         writeb(0xFF, ha->mem_ptr + IPS_REG_FLDP);
6734                         if (ha->revision_id == IPS_REVID_TROMBONE64)
6735                                 udelay(25);     /* 25 us */
6736
6737                         return (1);
6738                 }
6739         }                       /* end for */
6740
6741         /* Enable reading */
6742         writel(0, ha->mem_ptr + IPS_REG_FLAP);
6743         if (ha->revision_id == IPS_REVID_TROMBONE64)
6744                 udelay(25);     /* 25 us */
6745
6746         writeb(0xFF, ha->mem_ptr + IPS_REG_FLDP);
6747         if (ha->revision_id == IPS_REVID_TROMBONE64)
6748                 udelay(25);     /* 25 us */
6749
6750         return (0);
6751 }
6752
6753 /****************************************************************************/
6754 /*                                                                          */
6755 /* Routine Name: ips_verify_bios                                            */
6756 /*                                                                          */
6757 /* Routine Description:                                                     */
6758 /*   Verify the BIOS on the adapter                                         */
6759 /*                                                                          */
6760 /****************************************************************************/
6761 static int
6762 ips_verify_bios(ips_ha_t * ha, char *buffer, uint32_t buffersize,
6763                 uint32_t offset)
6764 {
6765         uint8_t checksum;
6766         int i;
6767
6768         METHOD_TRACE("ips_verify_bios", 1);
6769
6770         /* test 1st byte */
6771         outl(0, ha->io_addr + IPS_REG_FLAP);
6772         if (ha->revision_id == IPS_REVID_TROMBONE64)
6773                 udelay(25);     /* 25 us */
6774
6775         if (inb(ha->io_addr + IPS_REG_FLDP) != 0x55)
6776                 return (1);
6777
6778         outl(cpu_to_le32(1), ha->io_addr + IPS_REG_FLAP);
6779         if (ha->revision_id == IPS_REVID_TROMBONE64)
6780                 udelay(25);     /* 25 us */
6781         if (inb(ha->io_addr + IPS_REG_FLDP) != 0xAA)
6782                 return (1);
6783
6784         checksum = 0xff;
6785         for (i = 2; i < buffersize; i++) {
6786
6787                 outl(cpu_to_le32(i + offset), ha->io_addr + IPS_REG_FLAP);
6788                 if (ha->revision_id == IPS_REVID_TROMBONE64)
6789                         udelay(25);     /* 25 us */
6790
6791                 checksum = (uint8_t) checksum + inb(ha->io_addr + IPS_REG_FLDP);
6792         }
6793
6794         if (checksum != 0)
6795                 /* failure */
6796                 return (1);
6797         else
6798                 /* success */
6799                 return (0);
6800 }
6801
6802 /****************************************************************************/
6803 /*                                                                          */
6804 /* Routine Name: ips_verify_bios_memio                                      */
6805 /*                                                                          */
6806 /* Routine Description:                                                     */
6807 /*   Verify the BIOS on the adapter                                         */
6808 /*                                                                          */
6809 /****************************************************************************/
6810 static int
6811 ips_verify_bios_memio(ips_ha_t * ha, char *buffer, uint32_t buffersize,
6812                       uint32_t offset)
6813 {
6814         uint8_t checksum;
6815         int i;
6816
6817         METHOD_TRACE("ips_verify_bios_memio", 1);
6818
6819         /* test 1st byte */
6820         writel(0, ha->mem_ptr + IPS_REG_FLAP);
6821         if (ha->revision_id == IPS_REVID_TROMBONE64)
6822                 udelay(25);     /* 25 us */
6823
6824         if (readb(ha->mem_ptr + IPS_REG_FLDP) != 0x55)
6825                 return (1);
6826
6827         writel(1, ha->mem_ptr + IPS_REG_FLAP);
6828         if (ha->revision_id == IPS_REVID_TROMBONE64)
6829                 udelay(25);     /* 25 us */
6830         if (readb(ha->mem_ptr + IPS_REG_FLDP) != 0xAA)
6831                 return (1);
6832
6833         checksum = 0xff;
6834         for (i = 2; i < buffersize; i++) {
6835
6836                 writel(i + offset, ha->mem_ptr + IPS_REG_FLAP);
6837                 if (ha->revision_id == IPS_REVID_TROMBONE64)
6838                         udelay(25);     /* 25 us */
6839
6840                 checksum =
6841                     (uint8_t) checksum + readb(ha->mem_ptr + IPS_REG_FLDP);
6842         }
6843
6844         if (checksum != 0)
6845                 /* failure */
6846                 return (1);
6847         else
6848                 /* success */
6849                 return (0);
6850 }
6851
6852 /****************************************************************************/
6853 /*                                                                          */
6854 /* Routine Name: ips_abort_init                                             */
6855 /*                                                                          */
6856 /* Routine Description:                                                     */
6857 /*   cleanup routine for a failed adapter initialization                    */
6858 /****************************************************************************/
6859 static int
6860 ips_abort_init(ips_ha_t * ha, int index)
6861 {
6862         ha->active = 0;
6863         ips_free(ha);
6864         ips_ha[index] = NULL;
6865         ips_sh[index] = NULL;
6866         return -1;
6867 }
6868
6869 /****************************************************************************/
6870 /*                                                                          */
6871 /* Routine Name: ips_shift_controllers                                      */
6872 /*                                                                          */
6873 /* Routine Description:                                                     */
6874 /*   helper function for ordering adapters                                  */
6875 /****************************************************************************/
6876 static void
6877 ips_shift_controllers(int lowindex, int highindex)
6878 {
6879         ips_ha_t *ha_sav = ips_ha[highindex];
6880         struct Scsi_Host *sh_sav = ips_sh[highindex];
6881         int i;
6882
6883         for (i = highindex; i > lowindex; i--) {
6884                 ips_ha[i] = ips_ha[i - 1];
6885                 ips_sh[i] = ips_sh[i - 1];
6886                 ips_ha[i]->host_num = i;
6887         }
6888         ha_sav->host_num = lowindex;
6889         ips_ha[lowindex] = ha_sav;
6890         ips_sh[lowindex] = sh_sav;
6891 }
6892
6893 /****************************************************************************/
6894 /*                                                                          */
6895 /* Routine Name: ips_order_controllers                                      */
6896 /*                                                                          */
6897 /* Routine Description:                                                     */
6898 /*   place controllers is the "proper" boot order                           */
6899 /****************************************************************************/
6900 static void
6901 ips_order_controllers(void)
6902 {
6903         int i, j, tmp, position = 0;
6904         IPS_NVRAM_P5 *nvram;
6905         if (!ips_ha[0])
6906                 return;
6907         nvram = ips_ha[0]->nvram;
6908
6909         if (nvram->adapter_order[0]) {
6910                 for (i = 1; i <= nvram->adapter_order[0]; i++) {
6911                         for (j = position; j < ips_num_controllers; j++) {
6912                                 switch (ips_ha[j]->ad_type) {
6913                                 case IPS_ADTYPE_SERVERAID6M:
6914                                 case IPS_ADTYPE_SERVERAID7M:
6915                                         if (nvram->adapter_order[i] == 'M') {
6916                                                 ips_shift_controllers(position,
6917                                                                       j);
6918                                                 position++;
6919                                         }
6920                                         break;
6921                                 case IPS_ADTYPE_SERVERAID4L:
6922                                 case IPS_ADTYPE_SERVERAID4M:
6923                                 case IPS_ADTYPE_SERVERAID4MX:
6924                                 case IPS_ADTYPE_SERVERAID4LX:
6925                                         if (nvram->adapter_order[i] == 'N') {
6926                                                 ips_shift_controllers(position,
6927                                                                       j);
6928                                                 position++;
6929                                         }
6930                                         break;
6931                                 case IPS_ADTYPE_SERVERAID6I:
6932                                 case IPS_ADTYPE_SERVERAID5I2:
6933                                 case IPS_ADTYPE_SERVERAID5I1:
6934                                 case IPS_ADTYPE_SERVERAID7k:
6935                                         if (nvram->adapter_order[i] == 'S') {
6936                                                 ips_shift_controllers(position,
6937                                                                       j);
6938                                                 position++;
6939                                         }
6940                                         break;
6941                                 case IPS_ADTYPE_SERVERAID:
6942                                 case IPS_ADTYPE_SERVERAID2:
6943                                 case IPS_ADTYPE_NAVAJO:
6944                                 case IPS_ADTYPE_KIOWA:
6945                                 case IPS_ADTYPE_SERVERAID3L:
6946                                 case IPS_ADTYPE_SERVERAID3:
6947                                 case IPS_ADTYPE_SERVERAID4H:
6948                                         if (nvram->adapter_order[i] == 'A') {
6949                                                 ips_shift_controllers(position,
6950                                                                       j);
6951                                                 position++;
6952                                         }
6953                                         break;
6954                                 default:
6955                                         break;
6956                                 }
6957                         }
6958                 }
6959                 /* if adapter_order[0], then ordering is complete */
6960                 return;
6961         }
6962         /* old bios, use older ordering */
6963         tmp = 0;
6964         for (i = position; i < ips_num_controllers; i++) {
6965                 if (ips_ha[i]->ad_type == IPS_ADTYPE_SERVERAID5I2 ||
6966                     ips_ha[i]->ad_type == IPS_ADTYPE_SERVERAID5I1) {
6967                         ips_shift_controllers(position, i);
6968                         position++;
6969                         tmp = 1;
6970                 }
6971         }
6972         /* if there were no 5I cards, then don't do any extra ordering */
6973         if (!tmp)
6974                 return;
6975         for (i = position; i < ips_num_controllers; i++) {
6976                 if (ips_ha[i]->ad_type == IPS_ADTYPE_SERVERAID4L ||
6977                     ips_ha[i]->ad_type == IPS_ADTYPE_SERVERAID4M ||
6978                     ips_ha[i]->ad_type == IPS_ADTYPE_SERVERAID4LX ||
6979                     ips_ha[i]->ad_type == IPS_ADTYPE_SERVERAID4MX) {
6980                         ips_shift_controllers(position, i);
6981                         position++;
6982                 }
6983         }
6984
6985         return;
6986 }
6987
6988 /****************************************************************************/
6989 /*                                                                          */
6990 /* Routine Name: ips_register_scsi                                          */
6991 /*                                                                          */
6992 /* Routine Description:                                                     */
6993 /*   perform any registration and setup with the scsi layer                 */
6994 /****************************************************************************/
6995 static int
6996 ips_register_scsi(int index)
6997 {
6998         struct Scsi_Host *sh;
6999         ips_ha_t *ha, *oldha = ips_ha[index];
7000         sh = scsi_host_alloc(&ips_driver_template, sizeof (ips_ha_t));
7001         if (!sh) {
7002                 IPS_PRINTK(KERN_WARNING, oldha->pcidev,
7003                            "Unable to register controller with SCSI subsystem\n");
7004                 return -1;
7005         }
7006         ha = IPS_HA(sh);
7007         memcpy(ha, oldha, sizeof (ips_ha_t));
7008         free_irq(oldha->irq, oldha);
7009         /* Install the interrupt handler with the new ha */
7010         if (request_irq(ha->irq, do_ipsintr, SA_SHIRQ, ips_name, ha)) {
7011                 IPS_PRINTK(KERN_WARNING, ha->pcidev,
7012                            "Unable to install interrupt handler\n");
7013                 scsi_host_put(sh);
7014                 return -1;
7015         }
7016
7017         kfree(oldha);
7018         ips_sh[index] = sh;
7019         ips_ha[index] = ha;
7020         IPS_SCSI_SET_DEVICE(sh, ha);
7021
7022         /* Store away needed values for later use */
7023         sh->io_port = ha->io_addr;
7024         sh->n_io_port = ha->io_addr ? 255 : 0;
7025         sh->unique_id = (ha->io_addr) ? ha->io_addr : ha->mem_addr;
7026         sh->irq = ha->irq;
7027         sh->sg_tablesize = sh->hostt->sg_tablesize;
7028         sh->can_queue = sh->hostt->can_queue;
7029         sh->cmd_per_lun = sh->hostt->cmd_per_lun;
7030         sh->unchecked_isa_dma = sh->hostt->unchecked_isa_dma;
7031         sh->use_clustering = sh->hostt->use_clustering;
7032
7033 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,7)
7034         sh->max_sectors = 128;
7035 #endif
7036
7037         sh->max_id = ha->ntargets;
7038         sh->max_lun = ha->nlun;
7039         sh->max_channel = ha->nbus - 1;
7040         sh->can_queue = ha->max_cmds - 1;
7041
7042         IPS_ADD_HOST(sh, NULL);
7043         return 0;
7044 }
7045
7046 /*---------------------------------------------------------------------------*/
7047 /*   Routine Name: ips_remove_device                                         */
7048 /*                                                                           */
7049 /*   Routine Description:                                                    */
7050 /*     Remove one Adapter ( Hot Plugging )                                   */
7051 /*---------------------------------------------------------------------------*/
7052 static void __devexit
7053 ips_remove_device(struct pci_dev *pci_dev)
7054 {
7055         int i;
7056         struct Scsi_Host *sh;
7057         ips_ha_t *ha;
7058
7059         for (i = 0; i < IPS_MAX_ADAPTERS; i++) {
7060                 ha = ips_ha[i];
7061                 if (ha) {
7062                         if ((pci_dev->bus->number == ha->pcidev->bus->number) &&
7063                             (pci_dev->devfn == ha->pcidev->devfn)) {
7064                                 sh = ips_sh[i];
7065                                 ips_release(sh);
7066                         }
7067                 }
7068         }
7069 }
7070
7071 /****************************************************************************/
7072 /*                                                                          */
7073 /* Routine Name: ips_module_init                                            */
7074 /*                                                                          */
7075 /* Routine Description:                                                     */
7076 /*   function called on module load                                         */
7077 /****************************************************************************/
7078 static int __init
7079 ips_module_init(void)
7080 {
7081         if (pci_module_init(&ips_pci_driver) < 0)
7082                 return -ENODEV;
7083         ips_driver_template.module = THIS_MODULE;
7084         ips_order_controllers();
7085         if (IPS_REGISTER_HOSTS(&ips_driver_template)) {
7086                 pci_unregister_driver(&ips_pci_driver);
7087                 return -ENODEV;
7088         }
7089         register_reboot_notifier(&ips_notifier);
7090         return 0;
7091 }
7092
7093 /****************************************************************************/
7094 /*                                                                          */
7095 /* Routine Name: ips_module_exit                                            */
7096 /*                                                                          */
7097 /* Routine Description:                                                     */
7098 /*   function called on module unload                                       */
7099 /****************************************************************************/
7100 static void __exit
7101 ips_module_exit(void)
7102 {
7103         IPS_UNREGISTER_HOSTS(&ips_driver_template);
7104         pci_unregister_driver(&ips_pci_driver);
7105         unregister_reboot_notifier(&ips_notifier);
7106 }
7107
7108 module_init(ips_module_init);
7109 module_exit(ips_module_exit);
7110
7111 /*---------------------------------------------------------------------------*/
7112 /*   Routine Name: ips_insert_device                                         */
7113 /*                                                                           */
7114 /*   Routine Description:                                                    */
7115 /*     Add One Adapter ( Hot Plug )                                          */
7116 /*                                                                           */
7117 /*   Return Value:                                                           */
7118 /*     0 if Successful, else non-zero                                        */
7119 /*---------------------------------------------------------------------------*/
7120 static int __devinit
7121 ips_insert_device(struct pci_dev *pci_dev, const struct pci_device_id *ent)
7122 {
7123         int index;
7124         int rc;
7125
7126         METHOD_TRACE("ips_insert_device", 1);
7127         if (pci_enable_device(pci_dev))
7128                 return -1;
7129
7130         rc = ips_init_phase1(pci_dev, &index);
7131         if (rc == SUCCESS)
7132                 rc = ips_init_phase2(index);
7133
7134         if (ips_hotplug)
7135                 if (ips_register_scsi(index)) {
7136                         ips_free(ips_ha[index]);
7137                         rc = -1;
7138                 }
7139
7140         if (rc == SUCCESS)
7141                 ips_num_controllers++;
7142
7143         ips_next_controller = ips_num_controllers;
7144         return rc;
7145 }
7146
7147 /*---------------------------------------------------------------------------*/
7148 /*   Routine Name: ips_init_phase1                                           */
7149 /*                                                                           */
7150 /*   Routine Description:                                                    */
7151 /*     Adapter Initialization                                                */
7152 /*                                                                           */
7153 /*   Return Value:                                                           */
7154 /*     0 if Successful, else non-zero                                        */
7155 /*---------------------------------------------------------------------------*/
7156 static int
7157 ips_init_phase1(struct pci_dev *pci_dev, int *indexPtr)
7158 {
7159         ips_ha_t *ha;
7160         uint32_t io_addr;
7161         uint32_t mem_addr;
7162         uint32_t io_len;
7163         uint32_t mem_len;
7164         uint8_t revision_id;
7165         uint8_t bus;
7166         uint8_t func;
7167         uint8_t irq;
7168         uint16_t subdevice_id;
7169         int j;
7170         int index;
7171         dma_addr_t dma_address;
7172         char __iomem *ioremap_ptr;
7173         char __iomem *mem_ptr;
7174         uint32_t IsDead;
7175
7176         METHOD_TRACE("ips_init_phase1", 1);
7177         index = IPS_MAX_ADAPTERS;
7178         for (j = 0; j < IPS_MAX_ADAPTERS; j++) {
7179                 if (ips_ha[j] == 0) {
7180                         index = j;
7181                         break;
7182                 }
7183         }
7184
7185         if (index >= IPS_MAX_ADAPTERS)
7186                 return -1;
7187
7188         /* stuff that we get in dev */
7189         irq = pci_dev->irq;
7190         bus = pci_dev->bus->number;
7191         func = pci_dev->devfn;
7192
7193         /* Init MEM/IO addresses to 0 */
7194         mem_addr = 0;
7195         io_addr = 0;
7196         mem_len = 0;
7197         io_len = 0;
7198
7199         for (j = 0; j < 2; j++) {
7200                 if (!pci_resource_start(pci_dev, j))
7201                         break;
7202
7203                 if (pci_resource_flags(pci_dev, j) & IORESOURCE_IO) {
7204                         io_addr = pci_resource_start(pci_dev, j);
7205                         io_len = pci_resource_len(pci_dev, j);
7206                 } else {
7207                         mem_addr = pci_resource_start(pci_dev, j);
7208                         mem_len = pci_resource_len(pci_dev, j);
7209                 }
7210         }
7211
7212         /* setup memory mapped area (if applicable) */
7213         if (mem_addr) {
7214                 uint32_t base;
7215                 uint32_t offs;
7216
7217                 if (!request_mem_region(mem_addr, mem_len, "ips")) {
7218                         IPS_PRINTK(KERN_WARNING, pci_dev,
7219                                    "Couldn't allocate IO Memory space %x len %d.\n",
7220                                    mem_addr, mem_len);
7221                         return -1;
7222                 }
7223
7224                 base = mem_addr & PAGE_MASK;
7225                 offs = mem_addr - base;
7226                 ioremap_ptr = ioremap(base, PAGE_SIZE);
7227                 mem_ptr = ioremap_ptr + offs;
7228         } else {
7229                 ioremap_ptr = NULL;
7230                 mem_ptr = NULL;
7231         }
7232
7233         /* setup I/O mapped area (if applicable) */
7234         if (io_addr) {
7235                 if (!request_region(io_addr, io_len, "ips")) {
7236                         IPS_PRINTK(KERN_WARNING, pci_dev,
7237                                    "Couldn't allocate IO space %x len %d.\n",
7238                                    io_addr, io_len);
7239                         return -1;
7240                 }
7241         }
7242
7243         /* get the revision ID */
7244         if (pci_read_config_byte(pci_dev, PCI_REVISION_ID, &revision_id)) {
7245                 IPS_PRINTK(KERN_WARNING, pci_dev, "Can't get revision id.\n");
7246                 return -1;
7247         }
7248
7249         subdevice_id = pci_dev->subsystem_device;
7250
7251         /* found a controller */
7252         ha = kmalloc(sizeof (ips_ha_t), GFP_KERNEL);
7253         if (ha == NULL) {
7254                 IPS_PRINTK(KERN_WARNING, pci_dev,
7255                            "Unable to allocate temporary ha struct\n");
7256                 return -1;
7257         }
7258
7259         memset(ha, 0, sizeof (ips_ha_t));
7260
7261         ips_sh[index] = NULL;
7262         ips_ha[index] = ha;
7263         ha->active = 1;
7264
7265         /* Store info in HA structure */
7266         ha->irq = irq;
7267         ha->io_addr = io_addr;
7268         ha->io_len = io_len;
7269         ha->mem_addr = mem_addr;
7270         ha->mem_len = mem_len;
7271         ha->mem_ptr = mem_ptr;
7272         ha->ioremap_ptr = ioremap_ptr;
7273         ha->host_num = (uint32_t) index;
7274         ha->revision_id = revision_id;
7275         ha->slot_num = PCI_SLOT(pci_dev->devfn);
7276         ha->device_id = pci_dev->device;
7277         ha->subdevice_id = subdevice_id;
7278         ha->pcidev = pci_dev;
7279
7280         /*
7281          * Set the pci_dev's dma_mask.  Not all adapters support 64bit
7282          * addressing so don't enable it if the adapter can't support
7283          * it!  Also, don't use 64bit addressing if dma addresses
7284          * are guaranteed to be < 4G.
7285          */
7286         if (IPS_ENABLE_DMA64 && IPS_HAS_ENH_SGLIST(ha) &&
7287             !pci_set_dma_mask(ha->pcidev, 0xffffffffffffffffULL)) {
7288                 (ha)->flags |= IPS_HA_ENH_SG;
7289         } else {
7290                 if (pci_set_dma_mask(ha->pcidev, 0xffffffffULL) != 0) {
7291                         printk(KERN_WARNING "Unable to set DMA Mask\n");
7292                         return ips_abort_init(ha, index);
7293                 }
7294         }
7295         if(ips_cd_boot && !ips_FlashData){
7296                 ips_FlashData = pci_alloc_consistent(pci_dev, PAGE_SIZE << 7,
7297                                                      &ips_flashbusaddr);
7298         }
7299
7300         ha->enq = pci_alloc_consistent(pci_dev, sizeof (IPS_ENQ),
7301                                        &ha->enq_busaddr);
7302         if (!ha->enq) {
7303                 IPS_PRINTK(KERN_WARNING, pci_dev,
7304                            "Unable to allocate host inquiry structure\n");
7305                 return ips_abort_init(ha, index);
7306         }
7307
7308         ha->adapt = pci_alloc_consistent(pci_dev, sizeof (IPS_ADAPTER) +
7309                                          sizeof (IPS_IO_CMD), &dma_address);
7310         if (!ha->adapt) {
7311                 IPS_PRINTK(KERN_WARNING, pci_dev,
7312                            "Unable to allocate host adapt & dummy structures\n");
7313                 return ips_abort_init(ha, index);
7314         }
7315         ha->adapt->hw_status_start = dma_address;
7316         ha->dummy = (void *) (ha->adapt + 1);
7317
7318
7319
7320         ha->logical_drive_info = pci_alloc_consistent(pci_dev, sizeof (IPS_LD_INFO), &dma_address);
7321         if (!ha->logical_drive_info) {
7322                 IPS_PRINTK(KERN_WARNING, pci_dev,
7323                            "Unable to allocate logical drive info structure\n");
7324                 return ips_abort_init(ha, index);
7325         }
7326         ha->logical_drive_info_dma_addr = dma_address;
7327
7328
7329         ha->conf = kmalloc(sizeof (IPS_CONF), GFP_KERNEL);
7330
7331         if (!ha->conf) {
7332                 IPS_PRINTK(KERN_WARNING, pci_dev,
7333                            "Unable to allocate host conf structure\n");
7334                 return ips_abort_init(ha, index);
7335         }
7336
7337         ha->nvram = kmalloc(sizeof (IPS_NVRAM_P5), GFP_KERNEL);
7338
7339         if (!ha->nvram) {
7340                 IPS_PRINTK(KERN_WARNING, pci_dev,
7341                            "Unable to allocate host NVRAM structure\n");
7342                 return ips_abort_init(ha, index);
7343         }
7344
7345         ha->subsys = kmalloc(sizeof (IPS_SUBSYS), GFP_KERNEL);
7346
7347         if (!ha->subsys) {
7348                 IPS_PRINTK(KERN_WARNING, pci_dev,
7349                            "Unable to allocate host subsystem structure\n");
7350                 return ips_abort_init(ha, index);
7351         }
7352
7353         /* the ioctl buffer is now used during adapter initialization, so its
7354          * successful allocation is now required */
7355         if (ips_ioctlsize < PAGE_SIZE)
7356                 ips_ioctlsize = PAGE_SIZE;
7357
7358         ha->ioctl_data = pci_alloc_consistent(pci_dev, ips_ioctlsize,
7359                                               &ha->ioctl_busaddr);
7360         ha->ioctl_len = ips_ioctlsize;
7361         if (!ha->ioctl_data) {
7362                 IPS_PRINTK(KERN_WARNING, pci_dev,
7363                            "Unable to allocate IOCTL data\n");
7364                 return ips_abort_init(ha, index);
7365         }
7366
7367         /*
7368          * Setup Functions
7369          */
7370         ips_setup_funclist(ha);
7371
7372         if ((IPS_IS_MORPHEUS(ha)) || (IPS_IS_MARCO(ha))) {
7373                 /* If Morpheus appears dead, reset it */
7374                 IsDead = readl(ha->mem_ptr + IPS_REG_I960_MSG1);
7375                 if (IsDead == 0xDEADBEEF) {
7376                         ips_reset_morpheus(ha);
7377                 }
7378         }
7379
7380         /*
7381          * Initialize the card if it isn't already
7382          */
7383
7384         if (!(*ha->func.isinit) (ha)) {
7385                 if (!(*ha->func.init) (ha)) {
7386                         /*
7387                          * Initialization failed
7388                          */
7389                         IPS_PRINTK(KERN_WARNING, pci_dev,
7390                                    "Unable to initialize controller\n");
7391                         return ips_abort_init(ha, index);
7392                 }
7393         }
7394
7395         *indexPtr = index;
7396         return SUCCESS;
7397 }
7398
7399 /*---------------------------------------------------------------------------*/
7400 /*   Routine Name: ips_init_phase2                                           */
7401 /*                                                                           */
7402 /*   Routine Description:                                                    */
7403 /*     Adapter Initialization Phase 2                                        */
7404 /*                                                                           */
7405 /*   Return Value:                                                           */
7406 /*     0 if Successful, else non-zero                                        */
7407 /*---------------------------------------------------------------------------*/
7408 static int
7409 ips_init_phase2(int index)
7410 {
7411         ips_ha_t *ha;
7412
7413         ha = ips_ha[index];
7414
7415         METHOD_TRACE("ips_init_phase2", 1);
7416         if (!ha->active) {
7417                 ips_ha[index] = NULL;
7418                 return -1;
7419         }
7420
7421         /* Install the interrupt handler */
7422         if (request_irq(ha->irq, do_ipsintr, SA_SHIRQ, ips_name, ha)) {
7423                 IPS_PRINTK(KERN_WARNING, ha->pcidev,
7424                            "Unable to install interrupt handler\n");
7425                 return ips_abort_init(ha, index);
7426         }
7427
7428         /*
7429          * Allocate a temporary SCB for initialization
7430          */
7431         ha->max_cmds = 1;
7432         if (!ips_allocatescbs(ha)) {
7433                 IPS_PRINTK(KERN_WARNING, ha->pcidev,
7434                            "Unable to allocate a CCB\n");
7435                 free_irq(ha->irq, ha);
7436                 return ips_abort_init(ha, index);
7437         }
7438
7439         if (!ips_hainit(ha)) {
7440                 IPS_PRINTK(KERN_WARNING, ha->pcidev,
7441                            "Unable to initialize controller\n");
7442                 free_irq(ha->irq, ha);
7443                 return ips_abort_init(ha, index);
7444         }
7445         /* Free the temporary SCB */
7446         ips_deallocatescbs(ha, 1);
7447
7448         /* allocate CCBs */
7449         if (!ips_allocatescbs(ha)) {
7450                 IPS_PRINTK(KERN_WARNING, ha->pcidev,
7451                            "Unable to allocate CCBs\n");
7452                 free_irq(ha->irq, ha);
7453                 return ips_abort_init(ha, index);
7454         }
7455
7456         return SUCCESS;
7457 }
7458
7459 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,9)
7460 MODULE_LICENSE("GPL");
7461 #endif
7462
7463 MODULE_DESCRIPTION("IBM ServeRAID Adapter Driver " IPS_VER_STRING);
7464
7465 #ifdef MODULE_VERSION
7466 MODULE_VERSION(IPS_VER_STRING);
7467 #endif
7468
7469
7470 /*
7471  * Overrides for Emacs so that we almost follow Linus's tabbing style.
7472  * Emacs will notice this stuff at the end of the file and automatically
7473  * adjust the settings for this buffer only.  This must remain at the end
7474  * of the file.
7475  * ---------------------------------------------------------------------------
7476  * Local variables:
7477  * c-indent-level: 2
7478  * c-brace-imaginary-offset: 0
7479  * c-brace-offset: -2
7480  * c-argdecl-indent: 2
7481  * c-label-offset: -2
7482  * c-continued-statement-offset: 2
7483  * c-continued-brace-offset: 0
7484  * indent-tabs-mode: nil
7485  * tab-width: 8
7486  * End:
7487  */