1 /* Copyright(c) 2000, Compaq Computer Corporation
2 * Fibre Channel Host Bus Adapter
4 * Originally developed and tested on:
5 * (front): [chip] Tachyon TS HPFC-5166A/1.2 L2C1090 ...
6 * SP# P225CXCBFIEL6T, Rev XC
7 * SP# 161290-001, Rev XD
8 * (back): Board No. 010008-001 A/W Rev X5, FAB REV X5
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the
12 * Free Software Foundation; either version 2, or (at your option) any
15 * This program is distributed in the hope that it will be useful, but
16 * WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * General Public License for more details.
19 * Written by Don Zimmerman
20 * IOCTL and procfs added by Jouke Numan
21 * SMP testing by Chel Van Gennip
23 * portions copied from:
24 * QLogic CPQFCTS SCSI-FCP
25 * Written by Erik H. Moe, ehm@cris.com
26 * Copyright 1995, Erik H. Moe
27 * Renamed and updated to 1.3.x by Michael Griffith <grif@cs.ucr.edu>
28 * Chris Loveland <cwl@iol.unh.edu> to support the isp2100 and isp2200
32 #define LinuxVersionCode(v, p, s) (((v)<<16)+((p)<<8)+(s))
34 #include <linux/config.h>
35 #include <linux/interrupt.h>
36 #include <linux/module.h>
37 #include <linux/version.h>
38 #include <linux/blkdev.h>
39 #include <linux/kernel.h>
40 #include <linux/string.h>
41 #include <linux/types.h>
42 #include <linux/pci.h>
43 #include <linux/delay.h>
44 #include <linux/timer.h>
45 #include <linux/init.h>
46 #include <linux/ioport.h> // request_region() prototype
47 #include <linux/completion.h>
50 #include <asm/uaccess.h> // ioctl related
52 #include <linux/spinlock.h>
54 #include <scsi/scsi_host.h>
55 #include <scsi/scsi_ioctl.h>
56 #include "cpqfcTSchip.h"
57 #include "cpqfcTSstructs.h"
58 #include "cpqfcTStrigger.h"
62 /* Embedded module documentation macros - see module.h */
63 MODULE_AUTHOR("Compaq Computer Corporation");
64 MODULE_DESCRIPTION("Driver for Compaq 64-bit/66Mhz PCI Fibre Channel HBA v. 2.5.4");
65 MODULE_LICENSE("GPL");
67 int cpqfcTS_TargetDeviceReset( Scsi_Device *ScsiDev, unsigned int reset_flags);
69 // This struct was originally defined in
70 // /usr/src/linux/include/linux/proc_fs.h
71 // since it's only partially implemented, we only use first
73 // NOTE: proc_fs changes in 2.4 kernel
75 #if LINUX_VERSION_CODE < LinuxVersionCode(2,3,27)
76 static struct proc_dir_entry proc_scsi_cpqfcTS =
78 PROC_SCSI_CPQFCTS, // ushort low_ino (enumerated list)
80 DEV_NAME, // const char* name
81 S_IFDIR | S_IRUGO | S_IXUGO, // mode_t mode
89 #if LINUX_VERSION_CODE >= LinuxVersionCode(2,4,7)
90 # define CPQFC_DECLARE_COMPLETION(x) DECLARE_COMPLETION(x)
91 # define CPQFC_WAITING waiting
92 # define CPQFC_COMPLETE(x) complete(x)
93 # define CPQFC_WAIT_FOR_COMPLETION(x) wait_for_completion(x);
95 # define CPQFC_DECLARE_COMPLETION(x) DECLARE_MUTEX_LOCKED(x)
96 # define CPQFC_WAITING sem
97 # define CPQFC_COMPLETE(x) up(x)
98 # define CPQFC_WAIT_FOR_COMPLETION(x) down(x)
101 static int cpqfc_alloc_private_data_pool(CPQFCHBA *hba);
103 /* local function to load our per-HBA (local) data for chip
104 registers, FC link state, all FC exchanges, etc.
106 We allocate space and compute address offsets for the
107 most frequently accessed addresses; others (like World Wide
108 Name) are not necessary.
110 static void Cpqfc_initHBAdata(CPQFCHBA *cpqfcHBAdata, struct pci_dev *PciDev )
113 cpqfcHBAdata->PciDev = PciDev; // copy PCI info ptr
115 // since x86 port space is 64k, we only need the lower 16 bits
116 cpqfcHBAdata->fcChip.Registers.IOBaseL =
117 PciDev->resource[1].start & PCI_BASE_ADDRESS_IO_MASK;
119 cpqfcHBAdata->fcChip.Registers.IOBaseU =
120 PciDev->resource[2].start & PCI_BASE_ADDRESS_IO_MASK;
122 // 32-bit memory addresses
123 cpqfcHBAdata->fcChip.Registers.MemBase =
124 PciDev->resource[3].start & PCI_BASE_ADDRESS_MEM_MASK;
126 cpqfcHBAdata->fcChip.Registers.ReMapMemBase =
127 ioremap( PciDev->resource[3].start & PCI_BASE_ADDRESS_MEM_MASK,
130 cpqfcHBAdata->fcChip.Registers.RAMBase =
131 PciDev->resource[4].start;
133 cpqfcHBAdata->fcChip.Registers.SROMBase = // NULL for HP TS adapter
134 PciDev->resource[5].start;
136 // now the Tachlite chip registers
137 // the REGISTER struct holds both the physical address & last
138 // written value (some TL registers are WRITE ONLY)
140 cpqfcHBAdata->fcChip.Registers.SFQconsumerIndex.address =
141 cpqfcHBAdata->fcChip.Registers.ReMapMemBase + TL_MEM_SFQ_CONSUMER_INDEX;
143 cpqfcHBAdata->fcChip.Registers.ERQproducerIndex.address =
144 cpqfcHBAdata->fcChip.Registers.ReMapMemBase + TL_MEM_ERQ_PRODUCER_INDEX;
147 cpqfcHBAdata->fcChip.Registers.FMconfig.address =
148 cpqfcHBAdata->fcChip.Registers.ReMapMemBase + TL_MEM_FM_CONFIG;
149 cpqfcHBAdata->fcChip.Registers.FMcontrol.address =
150 cpqfcHBAdata->fcChip.Registers.ReMapMemBase + TL_MEM_FM_CONTROL;
151 cpqfcHBAdata->fcChip.Registers.FMstatus.address =
152 cpqfcHBAdata->fcChip.Registers.ReMapMemBase + TL_MEM_FM_STATUS;
153 cpqfcHBAdata->fcChip.Registers.FMLinkStatus1.address =
154 cpqfcHBAdata->fcChip.Registers.ReMapMemBase + TL_MEM_FM_LINK_STAT1;
155 cpqfcHBAdata->fcChip.Registers.FMLinkStatus2.address =
156 cpqfcHBAdata->fcChip.Registers.ReMapMemBase + TL_MEM_FM_LINK_STAT2;
157 cpqfcHBAdata->fcChip.Registers.FMBB_CreditZero.address =
158 cpqfcHBAdata->fcChip.Registers.ReMapMemBase + TL_MEM_FM_BB_CREDIT0;
161 cpqfcHBAdata->fcChip.Registers.TYconfig.address =
162 cpqfcHBAdata->fcChip.Registers.ReMapMemBase + TL_MEM_TACH_CONFIG;
163 cpqfcHBAdata->fcChip.Registers.TYcontrol.address =
164 cpqfcHBAdata->fcChip.Registers.ReMapMemBase + TL_MEM_TACH_CONTROL;
165 cpqfcHBAdata->fcChip.Registers.TYstatus.address =
166 cpqfcHBAdata->fcChip.Registers.ReMapMemBase + TL_MEM_TACH_STATUS;
167 cpqfcHBAdata->fcChip.Registers.rcv_al_pa.address =
168 cpqfcHBAdata->fcChip.Registers.ReMapMemBase + TL_MEM_FM_RCV_AL_PA;
169 cpqfcHBAdata->fcChip.Registers.ed_tov.address =
170 cpqfcHBAdata->fcChip.Registers.ReMapMemBase + TL_MEM_FM_ED_TOV;
173 cpqfcHBAdata->fcChip.Registers.INTEN.address =
174 cpqfcHBAdata->fcChip.Registers.ReMapMemBase + IINTEN;
175 cpqfcHBAdata->fcChip.Registers.INTPEND.address =
176 cpqfcHBAdata->fcChip.Registers.ReMapMemBase + IINTPEND;
177 cpqfcHBAdata->fcChip.Registers.INTSTAT.address =
178 cpqfcHBAdata->fcChip.Registers.ReMapMemBase + IINTSTAT;
180 DEBUG_PCI(printk(" cpqfcHBAdata->fcChip.Registers. :\n"));
181 DEBUG_PCI(printk(" IOBaseL = %x\n",
182 cpqfcHBAdata->fcChip.Registers.IOBaseL));
183 DEBUG_PCI(printk(" IOBaseU = %x\n",
184 cpqfcHBAdata->fcChip.Registers.IOBaseU));
186 /* printk(" ioremap'd Membase: %p\n", cpqfcHBAdata->fcChip.Registers.ReMapMemBase); */
188 DEBUG_PCI(printk(" SFQconsumerIndex.address = %p\n",
189 cpqfcHBAdata->fcChip.Registers.SFQconsumerIndex.address));
190 DEBUG_PCI(printk(" ERQproducerIndex.address = %p\n",
191 cpqfcHBAdata->fcChip.Registers.ERQproducerIndex.address));
192 DEBUG_PCI(printk(" TYconfig.address = %p\n",
193 cpqfcHBAdata->fcChip.Registers.TYconfig.address));
194 DEBUG_PCI(printk(" FMconfig.address = %p\n",
195 cpqfcHBAdata->fcChip.Registers.FMconfig.address));
196 DEBUG_PCI(printk(" FMcontrol.address = %p\n",
197 cpqfcHBAdata->fcChip.Registers.FMcontrol.address));
199 // set default options for FC controller (chip)
200 cpqfcHBAdata->fcChip.Options.initiator = 1; // default: SCSI initiator
201 cpqfcHBAdata->fcChip.Options.target = 0; // default: SCSI target
202 cpqfcHBAdata->fcChip.Options.extLoopback = 0;// default: no loopback @GBIC
203 cpqfcHBAdata->fcChip.Options.intLoopback = 0;// default: no loopback inside chip
205 // set highest and lowest FC-PH version the adapter/driver supports
206 // (NOT strict compliance)
207 cpqfcHBAdata->fcChip.highest_FCPH_ver = FC_PH3;
208 cpqfcHBAdata->fcChip.lowest_FCPH_ver = FC_PH43;
210 // set function points for this controller / adapter
211 cpqfcHBAdata->fcChip.ResetTachyon = CpqTsResetTachLite;
212 cpqfcHBAdata->fcChip.FreezeTachyon = CpqTsFreezeTachlite;
213 cpqfcHBAdata->fcChip.UnFreezeTachyon = CpqTsUnFreezeTachlite;
214 cpqfcHBAdata->fcChip.CreateTachyonQues = CpqTsCreateTachLiteQues;
215 cpqfcHBAdata->fcChip.DestroyTachyonQues = CpqTsDestroyTachLiteQues;
216 cpqfcHBAdata->fcChip.InitializeTachyon = CpqTsInitializeTachLite;
217 cpqfcHBAdata->fcChip.LaserControl = CpqTsLaserControl;
218 cpqfcHBAdata->fcChip.ProcessIMQEntry = CpqTsProcessIMQEntry;
219 cpqfcHBAdata->fcChip.InitializeFrameManager = CpqTsInitializeFrameManager;
220 cpqfcHBAdata->fcChip.ReadWriteWWN = CpqTsReadWriteWWN;
221 cpqfcHBAdata->fcChip.ReadWriteNVRAM = CpqTsReadWriteNVRAM;
223 if (cpqfc_alloc_private_data_pool(cpqfcHBAdata) != 0) {
225 "cpqfc: unable to allocate pool for passthru ioctls. "
226 "Passthru ioctls disabled.\n");
231 /* (borrowed from linux/drivers/scsi/hosts.c) */
232 static void launch_FCworker_thread(struct Scsi_Host *HostAdapter)
234 DECLARE_MUTEX_LOCKED(sem);
236 CPQFCHBA *cpqfcHBAdata = (CPQFCHBA *)HostAdapter->hostdata;
238 ENTER("launch_FC_worker_thread");
240 cpqfcHBAdata->notify_wt = &sem;
242 /* must unlock before kernel_thread(), for it may cause a reschedule. */
243 spin_unlock_irq(HostAdapter->host_lock);
244 kernel_thread((int (*)(void *))cpqfcTSWorkerThread,
245 (void *) HostAdapter, 0);
247 * Now wait for the kernel error thread to initialize itself
251 spin_lock_irq(HostAdapter->host_lock);
252 cpqfcHBAdata->notify_wt = NULL;
254 LEAVE("launch_FC_worker_thread");
259 /* "Entry" point to discover if any supported PCI
260 bus adapter can be found
263 * Compaq 64-bit, 66MHz HBA with Tachyon TS
269 #ifndef PCI_DEVICE_ID_COMPAQ_
270 #define PCI_DEVICE_ID_COMPAQ_TACHYON 0xa0fc
273 static struct SupportedPCIcards cpqfc_boards[] __initdata = {
274 {PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_TACHYON},
275 {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_TACHLITE},
276 {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_TACHYON},
280 int cpqfcTS_detect(Scsi_Host_Template *ScsiHostTemplate)
282 int NumberOfAdapters=0; // how many of our PCI adapters are found?
283 struct pci_dev *PciDev = NULL;
284 struct Scsi_Host *HostAdapter = NULL;
285 CPQFCHBA *cpqfcHBAdata = NULL;
286 struct timer_list *cpqfcTStimer = NULL;
289 ENTER("cpqfcTS_detect");
291 #if LINUX_VERSION_CODE < LinuxVersionCode(2,3,27)
292 ScsiHostTemplate->proc_dir = &proc_scsi_cpqfcTS;
294 ScsiHostTemplate->proc_name = "cpqfcTS";
297 for( i=0; i < HBA_TYPES; i++)
299 // look for all HBAs of each type
301 while((PciDev = pci_find_device(cpqfc_boards[i].vendor_id,
302 cpqfc_boards[i].device_id, PciDev)))
305 if (pci_enable_device(PciDev)) {
307 "cpqfc: can't enable PCI device at %s\n", pci_name(PciDev));
311 if (pci_set_dma_mask(PciDev, CPQFCTS_DMA_MASK) != 0) {
313 "cpqfc: HBA cannot support required DMA mask, skipping.\n");
314 goto err_disable_dev;
317 // NOTE: (kernel 2.2.12-32) limits allocation to 128k bytes...
318 /* printk(" scsi_register allocating %d bytes for FC HBA\n",
319 (ULONG)sizeof(CPQFCHBA)); */
321 HostAdapter = scsi_register( ScsiHostTemplate, sizeof( CPQFCHBA ) );
323 if(HostAdapter == NULL) {
325 "cpqfc: can't register SCSI HBA, skipping.\n");
326 goto err_disable_dev;
328 DEBUG_PCI( printk(" HBA found!\n"));
329 DEBUG_PCI( printk(" HostAdapter->PciDev->irq = %u\n", PciDev->irq) );
330 DEBUG_PCI(printk(" PciDev->baseaddress[0]= %lx\n",
331 PciDev->resource[0].start));
332 DEBUG_PCI(printk(" PciDev->baseaddress[1]= %lx\n",
333 PciDev->resource[1].start));
334 DEBUG_PCI(printk(" PciDev->baseaddress[2]= %lx\n",
335 PciDev->resource[2].start));
336 DEBUG_PCI(printk(" PciDev->baseaddress[3]= %lx\n",
337 PciDev->resource[3].start));
339 scsi_set_device(HostAdapter, &PciDev->dev);
340 HostAdapter->irq = PciDev->irq; // copy for Scsi layers
342 // HP Tachlite uses two (255-byte) ranges of Port I/O (lower & upper),
343 // for a total I/O port address space of 512 bytes.
344 // mask out the I/O port address (lower) & record
345 HostAdapter->io_port = (unsigned int)
346 PciDev->resource[1].start & PCI_BASE_ADDRESS_IO_MASK;
347 HostAdapter->n_io_port = 0xff;
349 // i.e., expect 128 targets (arbitrary number), while the
350 // RA-4000 supports 32 LUNs
351 HostAdapter->max_id = 0; // incremented as devices log in
352 HostAdapter->max_lun = CPQFCTS_MAX_LUN; // LUNs per FC device
353 HostAdapter->max_channel = CPQFCTS_MAX_CHANNEL; // multiple busses?
355 // get the pointer to our HBA specific data... (one for
356 // each HBA on the PCI bus(ses)).
357 cpqfcHBAdata = (CPQFCHBA *)HostAdapter->hostdata;
359 // make certain our data struct is clear
360 memset( cpqfcHBAdata, 0, sizeof( CPQFCHBA ) );
363 // initialize our HBA info
364 cpqfcHBAdata->HBAnum = NumberOfAdapters;
366 cpqfcHBAdata->HostAdapter = HostAdapter; // back ptr
367 Cpqfc_initHBAdata( cpqfcHBAdata, PciDev ); // fill MOST fields
369 cpqfcHBAdata->HBAnum = NumberOfAdapters;
370 spin_lock_init(&cpqfcHBAdata->hba_spinlock);
372 // request necessary resources and check for conflicts
373 if( request_irq( HostAdapter->irq,
374 cpqfcTS_intr_handler,
375 SA_INTERRUPT | SA_SHIRQ,
379 printk(KERN_WARNING "cpqfc: IRQ %u already used\n", HostAdapter->irq);
383 // Since we have two 256-byte I/O port ranges (upper
384 // and lower), check them both
385 if( !request_region( cpqfcHBAdata->fcChip.Registers.IOBaseU,
388 printk(KERN_WARNING "cpqfc: address in use: %x\n",
389 cpqfcHBAdata->fcChip.Registers.IOBaseU);
393 if( !request_region( cpqfcHBAdata->fcChip.Registers.IOBaseL,
396 printk(KERN_WARNING "cpqfc: address in use: %x\n",
397 cpqfcHBAdata->fcChip.Registers.IOBaseL);
398 goto err_release_region_U;
401 // OK, we have grabbed everything we need now.
402 DEBUG_PCI(printk(" Reserved 255 I/O addresses @ %x\n",
403 cpqfcHBAdata->fcChip.Registers.IOBaseL ));
404 DEBUG_PCI(printk(" Reserved 255 I/O addresses @ %x\n",
405 cpqfcHBAdata->fcChip.Registers.IOBaseU ));
409 // start our kernel worker thread
411 spin_lock_irq(HostAdapter->host_lock);
412 launch_FCworker_thread(HostAdapter);
415 // start our TimerTask...
417 cpqfcTStimer = &cpqfcHBAdata->cpqfcTStimer;
419 init_timer( cpqfcTStimer); // Linux clears next/prev values
420 cpqfcTStimer->expires = jiffies + HZ; // one second
421 cpqfcTStimer->data = (unsigned long)cpqfcHBAdata; // this adapter
422 cpqfcTStimer->function = cpqfcTSheartbeat; // handles timeouts, housekeeping
424 add_timer( cpqfcTStimer); // give it to Linux
427 // now initialize our hardware...
428 if (cpqfcHBAdata->fcChip.InitializeTachyon( cpqfcHBAdata, 1,1)) {
429 printk(KERN_WARNING "cpqfc: initialization of HBA hardware failed.\n");
430 goto err_release_region_L;
433 cpqfcHBAdata->fcStatsTime = jiffies; // (for FC Statistics delta)
435 // give our HBA time to initialize and login current devices...
437 // The Brocade switch (e.g. 2400, 2010, etc.) as of March 2000,
438 // has the following algorithm for FL_Port startup:
440 // 0: Device Plugin and LIP(F7,F7) transmission
442 // 1.027 LISA incoming, no CLS! (link not up)
443 // 1.028 NOS incoming (switch test for N_Port)
444 // 1.577 ED_TOV expired, transmit LIPs again
445 // 3.0 LIP(F8,F7) incoming (switch passes Tach Prim.Sig)
446 // 3.028 LILP received, link up, FLOGI starts
447 // slowest(worst) case, measured on 1Gb Finisar GT analyzer
449 unsigned long stop_time;
451 spin_unlock_irq(HostAdapter->host_lock);
452 stop_time = jiffies + 4*HZ;
453 while ( time_before(jiffies, stop_time) )
454 schedule(); // (our worker task needs to run)
458 spin_lock_irq(HostAdapter->host_lock);
460 spin_unlock_irq(HostAdapter->host_lock);
464 err_release_region_L:
465 release_region( cpqfcHBAdata->fcChip.Registers.IOBaseL, 0xff );
466 err_release_region_U:
467 release_region( cpqfcHBAdata->fcChip.Registers.IOBaseU, 0xff );
469 free_irq( HostAdapter->irq, HostAdapter);
471 scsi_unregister( HostAdapter);
473 pci_disable_device( PciDev );
479 LEAVE("cpqfcTS_detect");
481 return NumberOfAdapters;
485 static void my_ioctl_done (Scsi_Cmnd * SCpnt)
487 struct request * req;
489 req = SCpnt->request;
490 req->rq_status = RQ_SCSI_DONE; /* Busy, but indicate request done */
492 if (req->CPQFC_WAITING != NULL)
493 CPQFC_COMPLETE(req->CPQFC_WAITING);
497 static int cpqfc_alloc_private_data_pool(CPQFCHBA *hba)
499 hba->private_data_bits = NULL;
500 hba->private_data_pool = NULL;
501 hba->private_data_bits =
502 kmalloc(((CPQFC_MAX_PASSTHRU_CMDS+BITS_PER_LONG-1) /
503 BITS_PER_LONG)*sizeof(unsigned long),
505 if (hba->private_data_bits == NULL)
507 memset(hba->private_data_bits, 0,
508 ((CPQFC_MAX_PASSTHRU_CMDS+BITS_PER_LONG-1) /
509 BITS_PER_LONG)*sizeof(unsigned long));
510 hba->private_data_pool = kmalloc(sizeof(cpqfc_passthru_private_t) *
511 CPQFC_MAX_PASSTHRU_CMDS, GFP_KERNEL);
512 if (hba->private_data_pool == NULL) {
513 kfree(hba->private_data_bits);
514 hba->private_data_bits = NULL;
520 static void cpqfc_free_private_data_pool(CPQFCHBA *hba)
522 kfree(hba->private_data_bits);
523 kfree(hba->private_data_pool);
526 int is_private_data_of_cpqfc(CPQFCHBA *hba, void *pointer)
528 /* Is pointer within our private data pool?
529 We use Scsi_Request->upper_private_data (normally
530 reserved for upper layer drivers, e.g. the sg driver)
531 We check to see if the pointer is ours by looking at
532 its address. Is this ok? Hmm, it occurs to me that
533 a user app might do something bad by using sg to send
534 a cpqfc passthrough ioctl with upper_data_private
535 forged to be somewhere in our pool..., though they'd
536 normally have to be root already to do this. */
538 return (pointer != NULL &&
539 pointer >= (void *) hba->private_data_pool &&
540 pointer < (void *) hba->private_data_pool +
541 sizeof(*hba->private_data_pool) *
542 CPQFC_MAX_PASSTHRU_CMDS);
545 cpqfc_passthru_private_t *cpqfc_alloc_private_data(CPQFCHBA *hba)
550 i = find_first_zero_bit(hba->private_data_bits,
551 CPQFC_MAX_PASSTHRU_CMDS);
552 if (i == CPQFC_MAX_PASSTHRU_CMDS)
554 } while ( test_and_set_bit(i & (BITS_PER_LONG - 1),
555 hba->private_data_bits+(i/BITS_PER_LONG)) != 0);
556 return &hba->private_data_pool[i];
559 void cpqfc_free_private_data(CPQFCHBA *hba, cpqfc_passthru_private_t *data)
562 i = data - hba->private_data_pool;
563 clear_bit(i&(BITS_PER_LONG-1),
564 hba->private_data_bits+(i/BITS_PER_LONG));
567 int cpqfcTS_ioctl( struct scsi_device *ScsiDev, int Cmnd, void *arg)
570 struct Scsi_Host *HostAdapter = ScsiDev->host;
571 CPQFCHBA *cpqfcHBAdata = (CPQFCHBA *)HostAdapter->hostdata;
572 PTACHYON fcChip = &cpqfcHBAdata->fcChip;
573 PFC_LOGGEDIN_PORT pLoggedInPort = NULL;
574 struct scsi_cmnd *DumCmnd;
576 VENDOR_IOCTL_REQ ioc;
577 cpqfc_passthru_t *vendor_cmd;
579 Scsi_Request *ScsiPassThruReq;
580 cpqfc_passthru_private_t *privatedata;
582 ENTER("cpqfcTS_ioctl ");
584 // printk("ioctl CMND %d", Cmnd);
586 // Passthrough provides a mechanism to bypass the RAID
587 // or other controller and talk directly to the devices
588 // (e.g. physical disk drive)
589 // Passthrough commands, unfortunately, tend to be vendor
590 // specific; this is tailored to COMPAQ's RAID (RA4x00)
591 case CPQFCTS_SCSI_PASSTHRU:
593 void *buf = NULL; // for kernel space buffer for user data
595 /* Check that our pool got allocated ok. */
596 if (cpqfcHBAdata->private_data_pool == NULL)
602 // must be super user to send stuff directly to the
603 // controller and/or physical drives...
604 if( !capable(CAP_SYS_RAWIO) )
607 // copy the caller's struct to our space.
608 if( copy_from_user( &ioc, arg, sizeof( VENDOR_IOCTL_REQ)))
611 vendor_cmd = ioc.argp; // i.e., CPQ specific command struct
613 // If necessary, grab a kernel/DMA buffer
616 buf = kmalloc( vendor_cmd->len, GFP_KERNEL);
620 // Now build a Scsi_Request to pass down...
621 ScsiPassThruReq = scsi_allocate_request(ScsiDev, GFP_KERNEL);
622 if (ScsiPassThruReq == NULL) {
626 ScsiPassThruReq->upper_private_data =
627 cpqfc_alloc_private_data(cpqfcHBAdata);
628 if (ScsiPassThruReq->upper_private_data == NULL) {
630 scsi_release_request(ScsiPassThruReq); // "de-allocate"
634 if (vendor_cmd->rw_flag == VENDOR_WRITE_OPCODE) {
635 if (vendor_cmd->len) { // Need data from user?
636 if (copy_from_user(buf, vendor_cmd->bufp,
639 cpqfc_free_private_data(cpqfcHBAdata,
640 ScsiPassThruReq->upper_private_data);
641 scsi_release_request(ScsiPassThruReq);
645 ScsiPassThruReq->sr_data_direction = DMA_TO_DEVICE;
646 } else if (vendor_cmd->rw_flag == VENDOR_READ_OPCODE) {
647 ScsiPassThruReq->sr_data_direction = DMA_FROM_DEVICE;
649 // maybe this means a bug in the user app
650 ScsiPassThruReq->sr_data_direction = DMA_BIDIRECTIONAL;
652 ScsiPassThruReq->sr_cmd_len = 0; // set correctly by scsi_do_req()
653 ScsiPassThruReq->sr_sense_buffer[0] = 0;
654 ScsiPassThruReq->sr_sense_buffer[2] = 0;
656 // We copy the scheme used by sd.c:spinup_disk() to submit commands
657 // to our own HBA. We do this in order to stall the
658 // thread calling the IOCTL until it completes, and use
659 // the same "_quecommand" function for synchronizing
660 // FC Link events with our "worker thread".
662 privatedata = ScsiPassThruReq->upper_private_data;
663 privatedata->bus = vendor_cmd->bus;
664 privatedata->pdrive = vendor_cmd->pdrive;
666 // eventually gets us to our own _quecommand routine
667 scsi_wait_req(ScsiPassThruReq,
668 &vendor_cmd->cdb[0], buf, vendor_cmd->len,
671 result = ScsiPassThruReq->sr_result;
673 // copy any sense data back to caller
676 memcpy( vendor_cmd->sense_data, // see struct def - size=40
677 ScsiPassThruReq->sr_sense_buffer,
678 sizeof(ScsiPassThruReq->sr_sense_buffer) <
679 sizeof(vendor_cmd->sense_data) ?
680 sizeof(ScsiPassThruReq->sr_sense_buffer) :
681 sizeof(vendor_cmd->sense_data)
684 SDpnt = ScsiPassThruReq->sr_device;
685 /* upper_private_data is already freed in call_scsi_done() */
686 scsi_release_request(ScsiPassThruReq); // "de-allocate"
687 ScsiPassThruReq = NULL;
689 // need to pass data back to user (space)?
690 if( (vendor_cmd->rw_flag == VENDOR_READ_OPCODE) &&
692 if( copy_to_user( vendor_cmd->bufp, buf, vendor_cmd->len))
701 case CPQFCTS_GETPCIINFO:
703 cpqfc_pci_info_struct pciinfo;
710 pciinfo.bus = cpqfcHBAdata->PciDev->bus->number;
711 pciinfo.dev_fn = cpqfcHBAdata->PciDev->devfn;
712 pciinfo.board_id = cpqfcHBAdata->PciDev->device |
713 (cpqfcHBAdata->PciDev->vendor <<16);
715 if(copy_to_user( arg, &pciinfo, sizeof(cpqfc_pci_info_struct)))
720 case CPQFCTS_GETDRIVVER:
722 DriverVer_type DriverVer =
723 CPQFCTS_DRIVER_VER( VER_MAJOR,VER_MINOR,VER_SUBMINOR);
728 if(copy_to_user( arg, &DriverVer, sizeof(DriverVer)))
735 case CPQFC_IOCTL_FC_TARGET_ADDRESS:
736 // can we find an FC device mapping to this SCSI target?
737 /* DumCmnd.channel = ScsiDev->channel; */ // For searching
738 /* DumCmnd.target = ScsiDev->id; */
739 /* DumCmnd.lun = ScsiDev->lun; */
741 DumCmnd = scsi_get_command (ScsiDev, GFP_KERNEL);
745 pLoggedInPort = fcFindLoggedInPort( fcChip,
746 DumCmnd, // search Scsi Nexus
747 0, // DON'T search linked list for FC port id
748 NULL, // DON'T search linked list for FC WWN
749 NULL); // DON'T care about end of list
750 scsi_put_command (DumCmnd);
751 if (pLoggedInPort == NULL) {
755 result = access_ok(VERIFY_WRITE, arg, sizeof(Scsi_FCTargAddress)) ? 0 : -EFAULT;
758 put_user(pLoggedInPort->port_id,
759 &((Scsi_FCTargAddress *) arg)->host_port_id);
761 for( i=3,j=0; i>=0; i--) // copy the LOGIN port's WWN
762 put_user(pLoggedInPort->u.ucWWN[i],
763 &((Scsi_FCTargAddress *) arg)->host_wwn[j++]);
764 for( i=7; i>3; i--) // copy the LOGIN port's WWN
765 put_user(pLoggedInPort->u.ucWWN[i],
766 &((Scsi_FCTargAddress *) arg)->host_wwn[j++]);
770 case CPQFC_IOCTL_FC_TDR:
772 result = cpqfcTS_TargetDeviceReset( ScsiDev, 0);
784 LEAVE("cpqfcTS_ioctl");
789 /* "Release" the Host Bus Adapter...
790 disable interrupts, stop the HBA, release the interrupt,
791 and free all resources */
793 int cpqfcTS_release(struct Scsi_Host *HostAdapter)
795 CPQFCHBA *cpqfcHBAdata = (CPQFCHBA *)HostAdapter->hostdata;
798 ENTER("cpqfcTS_release");
800 DEBUG_PCI( printk(" cpqfcTS: delete timer...\n"));
801 del_timer( &cpqfcHBAdata->cpqfcTStimer);
803 // disable the hardware...
804 DEBUG_PCI( printk(" disable hardware, destroy queues, free mem\n"));
805 cpqfcHBAdata->fcChip.ResetTachyon( cpqfcHBAdata, CLEAR_FCPORTS);
807 // kill kernel thread
808 if( cpqfcHBAdata->worker_thread ) // (only if exists)
810 DECLARE_MUTEX_LOCKED(sem); // synchronize thread kill
812 cpqfcHBAdata->notify_wt = &sem;
813 DEBUG_PCI( printk(" killing kernel thread\n"));
814 send_sig( SIGKILL, cpqfcHBAdata->worker_thread, 1);
816 cpqfcHBAdata->notify_wt = NULL;
820 cpqfc_free_private_data_pool(cpqfcHBAdata);
821 // free Linux resources
822 DEBUG_PCI( printk(" cpqfcTS: freeing resources...\n"));
823 free_irq( HostAdapter->irq, HostAdapter);
824 scsi_unregister( HostAdapter);
825 release_region( cpqfcHBAdata->fcChip.Registers.IOBaseL, 0xff);
826 release_region( cpqfcHBAdata->fcChip.Registers.IOBaseU, 0xff);
827 /* we get "vfree: bad address" executing this - need to investigate...
828 if( (void*)((unsigned long)cpqfcHBAdata->fcChip.Registers.MemBase) !=
829 cpqfcHBAdata->fcChip.Registers.ReMapMemBase)
830 vfree( cpqfcHBAdata->fcChip.Registers.ReMapMemBase);
832 pci_disable_device( cpqfcHBAdata->PciDev);
834 LEAVE("cpqfcTS_release");
839 const char * cpqfcTS_info(struct Scsi_Host *HostAdapter)
841 static char buf[300];
843 int BusSpeed, BusWidth;
845 // get the pointer to our Scsi layer HBA buffer
846 cpqfcHBA = (CPQFCHBA *)HostAdapter->hostdata;
848 BusWidth = (cpqfcHBA->fcChip.Registers.PCIMCTR &0x4) > 0 ?
851 if( cpqfcHBA->fcChip.Registers.TYconfig.value & 0x80000000)
857 "%s: WWN %08X%08X\n on PCI bus %d device 0x%02x irq %d IObaseL 0x%x, MEMBASE 0x%x\nPCI bus width %d bits, bus speed %d MHz\nFCP-SCSI Driver v%d.%d.%d",
858 cpqfcHBA->fcChip.Name,
859 cpqfcHBA->fcChip.Registers.wwn_hi,
860 cpqfcHBA->fcChip.Registers.wwn_lo,
861 cpqfcHBA->PciDev->bus->number,
862 cpqfcHBA->PciDev->device,
864 cpqfcHBA->fcChip.Registers.IOBaseL,
865 cpqfcHBA->fcChip.Registers.MemBase,
868 VER_MAJOR, VER_MINOR, VER_SUBMINOR
872 cpqfcTSDecodeGBICtype( &cpqfcHBA->fcChip, &buf[ strlen(buf)]);
873 cpqfcTSGetLPSM( &cpqfcHBA->fcChip, &buf[ strlen(buf)]);
878 // /proc/scsi support. The following routines allow us to do 'normal'
879 // sprintf like calls to return the currently requested piece (buflenght
880 // chars, starting at bufoffset) of the file. Although procfs allows for
881 // a 1 Kb bytes overflow after te supplied buffer, I consider it bad
882 // programming to use it to make programming a little simpler. This piece
883 // of coding is borrowed from ncr53c8xx.c with some modifications
887 char *buffer; // Pointer to output buffer
888 int buflength; // It's length
889 int bufoffset; // File offset corresponding with buf[0]
890 int buffillen; // Current filled length
891 int filpos; // Current file offset
894 static void copy_mem_info(struct info_str *info, char *data, int datalen)
897 if (info->filpos < info->bufoffset) { // Current offset before buffer offset
898 if (info->filpos + datalen <= info->bufoffset) {
899 info->filpos += datalen; // Discard if completely before buffer
901 } else { // Partial copy, set to begin
902 data += (info->bufoffset - info->filpos);
903 datalen -= (info->bufoffset - info->filpos);
904 info->filpos = info->bufoffset;
908 info->filpos += datalen; // Update current offset
910 if (info->buffillen == info->buflength) // Buffer full, discard
913 if (info->buflength - info->buffillen < datalen) // Overflows buffer ?
914 datalen = info->buflength - info->buffillen;
916 memcpy(info->buffer + info->buffillen, data, datalen);
917 info->buffillen += datalen;
920 static int copy_info(struct info_str *info, char *fmt, ...)
927 len = vsprintf(buf, fmt, args);
930 copy_mem_info(info, buf, len);
935 // Routine to get data for /proc RAM filesystem
937 int cpqfcTS_proc_info (struct Scsi_Host *host, char *buffer, char **start, off_t offset, int length,
940 struct scsi_cmnd *DumCmnd;
941 struct scsi_device *ScsiDev;
943 struct info_str info;
946 PFC_LOGGEDIN_PORT pLoggedInPort;
949 if (inout) return -EINVAL;
951 // get the pointer to our Scsi layer HBA buffer
952 cpqfcHBA = (CPQFCHBA *)host->hostdata;
953 fcChip = &cpqfcHBA->fcChip;
957 info.buffer = buffer;
958 info.buflength = length;
959 info.bufoffset = offset;
962 copy_info(&info, "Driver version = %d.%d.%d", VER_MAJOR, VER_MINOR, VER_SUBMINOR);
963 cpqfcTSDecodeGBICtype( &cpqfcHBA->fcChip, &buf[0]);
964 cpqfcTSGetLPSM( &cpqfcHBA->fcChip, &buf[ strlen(buf)]);
965 copy_info(&info, "%s\n", buf);
967 #define DISPLAY_WWN_INFO
968 #ifdef DISPLAY_WWN_INFO
969 ScsiDev = scsi_get_host_dev (host);
972 DumCmnd = scsi_get_command (ScsiDev, GFP_KERNEL);
974 scsi_free_host_dev (ScsiDev);
977 copy_info(&info, "WWN database: (\"port_id: 000000\" means disconnected)\n");
978 for ( Chan=0; Chan <= host->max_channel; Chan++) {
979 DumCmnd->device->channel = Chan;
980 for (Targ=0; Targ <= host->max_id; Targ++) {
981 DumCmnd->device->id = Targ;
982 if ((pLoggedInPort = fcFindLoggedInPort( fcChip,
983 DumCmnd, // search Scsi Nexus
984 0, // DON'T search list for FC port id
985 NULL, // DON'T search list for FC WWN
986 NULL))){ // DON'T care about end of list
987 copy_info(&info, "Host: scsi%d Channel: %02d TargetId: %02d -> WWN: ",
988 host->host_no, Chan, Targ);
989 for( i=3; i>=0; i--) // copy the LOGIN port's WWN
990 copy_info(&info, "%02X", pLoggedInPort->u.ucWWN[i]);
991 for( i=7; i>3; i--) // copy the LOGIN port's WWN
992 copy_info(&info, "%02X", pLoggedInPort->u.ucWWN[i]);
993 copy_info(&info, " port_id: %06X\n", pLoggedInPort->port_id);
998 scsi_put_command (DumCmnd);
999 scsi_free_host_dev (ScsiDev);
1006 // Unfortunately, the proc_info buffer isn't big enough
1007 // for everything we would like...
1008 // For FC stats, compile this and turn off WWN stuff above
1009 //#define DISPLAY_FC_STATS
1010 #ifdef DISPLAY_FC_STATS
1011 // get the Fibre Channel statistics
1013 int DeltaSecs = (jiffies - cpqfcHBA->fcStatsTime) / HZ;
1014 int days,hours,minutes,secs;
1016 days = DeltaSecs / (3600*24); // days
1017 hours = (DeltaSecs% (3600*24)) / 3600; // hours
1018 minutes = (DeltaSecs%3600 /60); // minutes
1019 secs = DeltaSecs%60; // secs
1020 copy_info( &info, "Fibre Channel Stats (time dd:hh:mm:ss %02u:%02u:%02u:%02u\n",
1021 days, hours, minutes, secs);
1024 cpqfcHBA->fcStatsTime = jiffies; // (for next delta)
1026 copy_info( &info, " LinkUp %9u LinkDown %u\n",
1027 fcChip->fcStats.linkUp, fcChip->fcStats.linkDown);
1029 copy_info( &info, " Loss of Signal %9u Loss of Sync %u\n",
1030 fcChip->fcStats.LossofSignal, fcChip->fcStats.LossofSync);
1032 copy_info( &info, " Discarded Frames %9u Bad CRC Frame %u\n",
1033 fcChip->fcStats.Dis_Frm, fcChip->fcStats.Bad_CRC);
1035 copy_info( &info, " TACH LinkFailTX %9u TACH LinkFailRX %u\n",
1036 fcChip->fcStats.linkFailTX, fcChip->fcStats.linkFailRX);
1038 copy_info( &info, " TACH RxEOFa %9u TACH Elastic Store %u\n",
1039 fcChip->fcStats.Rx_EOFa, fcChip->fcStats.e_stores);
1041 copy_info( &info, " BufferCreditWait %9uus TACH FM Inits %u\n",
1042 fcChip->fcStats.BB0_Timer*10, fcChip->fcStats.FMinits );
1044 copy_info( &info, " FC-2 Timeouts %9u FC-2 Logouts %u\n",
1045 fcChip->fcStats.timeouts, fcChip->fcStats.logouts);
1047 copy_info( &info, " FC-2 Aborts %9u FC-4 Aborts %u\n",
1048 fcChip->fcStats.FC2aborted, fcChip->fcStats.FC4aborted);
1050 // clear the counters
1051 cpqfcTSClearLinkStatusCounters( fcChip);
1054 return info.buffillen;
1060 UCHAR *ScsiToAscii( UCHAR ScsiCommand)
1065 Routine Description:
1067 Converts a SCSI command to a text string for debugging purposes.
1072 ScsiCommand -- hex value SCSI Command
1077 An ASCII, null-terminated string if found, else returns NULL.
1079 Original code from M. McGowen, Compaq
1083 switch (ScsiCommand)
1086 return( "Test Unit Ready" );
1089 return( "Rezero Unit or Rewind" );
1092 return( "Request Block Address" );
1095 return( "Requese Sense" );
1098 return( "Format Unit" );
1101 return( "Read Block Limits" );
1104 return( "Reassign Blocks" );
1107 return( "Read (6)" );
1110 return( "Write (6)" );
1113 return( "Seek (6)" );
1116 return( "Inquiry" );
1119 return( "Mode Select (6)" );
1122 return( "Reserve" );
1125 return( "Release" );
1128 return( "ModeSen(6)" );
1131 return( "Start/Stop Unit" );
1134 return( "Receive Diagnostic Results" );
1137 return( "Send Diagnostic" );
1140 return( "Read Capacity" );
1143 return( "Read (10)" );
1146 return( "Write (10)" );
1149 return( "Seek (10)" );
1152 return( "Write and Verify" );
1158 return( "Pre-Fetch" );
1161 return( "Synchronize Cache" );
1164 return( "Read Defect Data (10)" );
1167 return( "Write Buffer" );
1170 return( "Read Buffer" );
1173 return( "Read Long" );
1176 return( "Write Long" );
1179 return( "Write Same" );
1182 return( "Log Select" );
1185 return( "Log Sense" );
1188 return( "Reserve (10)" );
1191 return( "Release (10)" );
1194 return( "ReportLuns" );
1197 return( "Read Defect Data (12)" );
1200 return( "Peripheral Device Addressing SCSI Passthrough" );
1203 return( "Compaq Array Firmware Passthrough" );
1209 } // end ScsiToAscii()
1211 void cpqfcTS_print_scsi_cmd(Scsi_Cmnd * cmd)
1214 printk("cpqfcTS: (%s) chnl 0x%02x, trgt = 0x%02x, lun = 0x%02x, cmd_len = 0x%02x\n",
1215 ScsiToAscii( cmd->cmnd[0]), cmd->channel, cmd->target, cmd->lun, cmd->cmd_len);
1217 if( cmd->cmnd[0] == 0) // Test Unit Ready?
1221 printk("Cmnd->request_bufflen = 0x%X, ->use_sg = %d, ->bufflen = %d\n",
1222 cmd->request_bufflen, cmd->use_sg, cmd->bufflen);
1223 printk("Cmnd->request_buffer = %p, ->sglist_len = %d, ->buffer = %p\n",
1224 cmd->request_buffer, cmd->sglist_len, cmd->buffer);
1225 for (i = 0; i < cmd->cmd_len; i++)
1226 printk("0x%02x ", cmd->cmnd[i]);
1232 #endif /* DEBUG_CMND */
1237 static void QueCmndOnBoardLock( CPQFCHBA *cpqfcHBAdata, Scsi_Cmnd *Cmnd)
1241 for( i=0; i< CPQFCTS_REQ_QUEUE_LEN; i++)
1242 { // find spare slot
1243 if( cpqfcHBAdata->BoardLockCmnd[i] == NULL )
1245 cpqfcHBAdata->BoardLockCmnd[i] = Cmnd;
1246 // printk(" BoardLockCmnd[%d] %p Queued, chnl/target/lun %d/%d/%d\n",
1247 // i,Cmnd, Cmnd->channel, Cmnd->target, Cmnd->lun);
1251 if( i >= CPQFCTS_REQ_QUEUE_LEN)
1253 printk(" cpqfcTS WARNING: Lost Cmnd %p on BoardLock Q full!", Cmnd);
1259 static void QueLinkDownCmnd( CPQFCHBA *cpqfcHBAdata, Scsi_Cmnd *Cmnd)
1263 // Remember the command ptr so we can return; we'll complete when
1264 // the device comes back, causing immediate retry
1265 for( indx=0; indx < CPQFCTS_REQ_QUEUE_LEN; indx++)//, SCptr++)
1267 if( cpqfcHBAdata->LinkDnCmnd[indx] == NULL ) // available?
1269 #ifdef DUMMYCMND_DBG
1270 printk(" @add Cmnd %p to LnkDnCmnd[%d]@ ", Cmnd,indx);
1272 cpqfcHBAdata->LinkDnCmnd[indx] = Cmnd;
1277 if( indx >= CPQFCTS_REQ_QUEUE_LEN ) // no space for Cmnd??
1279 // this will result in an _abort call later (with possible trouble)
1280 printk("no buffer for LinkDnCmnd!! %p\n", Cmnd);
1288 // The file <scsi/scsi_host.h> says not to call scsi_done from
1289 // inside _queuecommand, so we'll do it from the heartbeat timer
1290 // (clarification: Turns out it's ok to call scsi_done from queuecommand
1291 // for cases that don't go to the hardware like scsi cmds destined
1292 // for LUNs we know don't exist, so this code might be simplified...)
1294 static void QueBadTargetCmnd( CPQFCHBA *cpqfcHBAdata, Scsi_Cmnd *Cmnd)
1297 // printk(" can't find target %d\n", Cmnd->target);
1299 for( i=0; i< CPQFCTS_MAX_TARGET_ID; i++)
1300 { // find spare slot
1301 if( cpqfcHBAdata->BadTargetCmnd[i] == NULL )
1303 cpqfcHBAdata->BadTargetCmnd[i] = Cmnd;
1304 // printk(" BadTargetCmnd[%d] %p Queued, chnl/target/lun %d/%d/%d\n",
1305 // i,Cmnd, Cmnd->channel, Cmnd->target, Cmnd->lun);
1312 // This is the "main" entry point for Linux Scsi commands --
1313 // it all starts here.
1315 int cpqfcTS_queuecommand(Scsi_Cmnd *Cmnd, void (* done)(Scsi_Cmnd *))
1317 struct Scsi_Host *HostAdapter = Cmnd->device->host;
1318 CPQFCHBA *cpqfcHBAdata = (CPQFCHBA *)HostAdapter->hostdata;
1319 PTACHYON fcChip = &cpqfcHBAdata->fcChip;
1320 TachFCHDR_GCMND fchs; // only use for FC destination id field
1321 PFC_LOGGEDIN_PORT pLoggedInPort;
1322 ULONG ulStatus, SESTtype;
1328 ENTER("cpqfcTS_queuecommand");
1330 PCI_TRACEO( (ULONG)Cmnd, 0x98)
1333 Cmnd->scsi_done = done;
1335 cpqfcTS_print_scsi_cmd( Cmnd);
1338 // prevent board contention with kernel thread...
1340 if( cpqfcHBAdata->BoardLock )
1342 // printk(" @BrdLck Hld@ ");
1343 QueCmndOnBoardLock( cpqfcHBAdata, Cmnd);
1349 // in the current system (2.2.12), this routine is called
1350 // after spin_lock_irqsave(), so INTs are disabled. However,
1351 // we might have something pending in the LinkQ, which
1352 // might cause the WorkerTask to run. In case that
1353 // happens, make sure we lock it out.
1358 CPQ_SPINLOCK_HBA( cpqfcHBAdata)
1361 // can we find an FC device mapping to this SCSI target?
1362 pLoggedInPort = fcFindLoggedInPort( fcChip,
1363 Cmnd, // search Scsi Nexus
1364 0, // DON'T search linked list for FC port id
1365 NULL, // DON'T search linked list for FC WWN
1366 NULL); // DON'T care about end of list
1368 if( pLoggedInPort == NULL ) // not found!
1370 // printk(" @Q bad targ cmnd %p@ ", Cmnd);
1371 QueBadTargetCmnd( cpqfcHBAdata, Cmnd);
1373 else if (Cmnd->device->lun >= CPQFCTS_MAX_LUN)
1375 printk(KERN_WARNING "cpqfc: Invalid LUN: %d\n", Cmnd->device->lun);
1376 QueBadTargetCmnd( cpqfcHBAdata, Cmnd);
1379 else // we know what FC device to send to...
1382 // does this device support FCP target functions?
1383 // (determined by PRLI field)
1385 if( !(pLoggedInPort->fcp_info & TARGET_FUNCTION) )
1387 printk(" Doesn't support TARGET functions port_id %Xh\n",
1388 pLoggedInPort->port_id );
1389 QueBadTargetCmnd( cpqfcHBAdata, Cmnd);
1392 // In this case (previous login OK), the device is temporarily
1393 // unavailable waiting for re-login, in which case we expect it
1394 // to be back in between 25 - 500ms.
1395 // If the FC port doesn't log back in within several seconds
1396 // (i.e. implicit "logout"), or we get an explicit logout,
1397 // we set "device_blocked" in Scsi_Device struct; in this
1398 // case 30 seconds will elapse before Linux/Scsi sends another
1399 // command to the device.
1400 else if( pLoggedInPort->prli != TRUE )
1402 // printk("Device (Chnl/Target %d/%d) invalid PRLI, port_id %06lXh\n",
1403 // Cmnd->channel, Cmnd->target, pLoggedInPort->port_id);
1404 QueLinkDownCmnd( cpqfcHBAdata, Cmnd);
1405 // Need to use "blocked" flag??
1406 // Cmnd->device->device_blocked = TRUE; // just let it timeout
1408 else // device supports TARGET functions, and is logged in...
1410 // (context of fchs is to "reply" to...)
1411 fchs.s_id = pLoggedInPort->port_id; // destination FC address
1413 // what is the data direction? For data TO the device,
1414 // we need IWE (Intiator Write Entry). Otherwise, IRE.
1416 if( Cmnd->cmnd[0] == WRITE_10 ||
1417 Cmnd->cmnd[0] == WRITE_6 ||
1418 Cmnd->cmnd[0] == WRITE_BUFFER ||
1419 Cmnd->cmnd[0] == VENDOR_WRITE_OPCODE || // CPQ specific
1420 Cmnd->cmnd[0] == MODE_SELECT )
1422 SESTtype = SCSI_IWE; // data from HBA to Device
1425 SESTtype = SCSI_IRE; // data from Device to HBA
1427 ulStatus = cpqfcTSBuildExchange(
1429 SESTtype, // e.g. Initiator Read Entry (IRE)
1430 &fchs, // we are originator; only use d_id
1431 Cmnd, // Linux SCSI command (with scatter/gather list)
1432 &ExchangeID );// fcController->fcExchanges index, -1 if failed
1434 if( !ulStatus ) // Exchange setup?
1437 if( cpqfcHBAdata->BoardLock )
1439 TriggerHBA( fcChip->Registers.ReMapMemBase, 0);
1440 printk(" @bl! %d, xID %Xh@ ", current->pid, ExchangeID);
1443 ulStatus = cpqfcTSStartExchange( cpqfcHBAdata, ExchangeID );
1446 PCI_TRACEO( ExchangeID, 0xB8)
1447 // submitted to Tach's Outbound Que (ERQ PI incremented)
1448 // waited for completion for ELS type (Login frames issued
1452 // check reason for Exchange not being started - we might
1453 // want to Queue and start later, or fail with error
1455 printk("quecommand: cpqfcTSStartExchange failed: %Xh\n", ulStatus );
1457 } // end good BuildExchange status
1459 else // SEST table probably full -- why? hardware hang?
1461 printk("quecommand: cpqfcTSBuildExchange faild: %Xh\n", ulStatus);
1463 } // end can't do FCP-SCSI target functions
1464 } // end can't find target (FC device)
1466 CPQ_SPINUNLOCK_HBA( cpqfcHBAdata)
1469 PCI_TRACEO( (ULONG)Cmnd, 0x9C)
1470 LEAVE("cpqfcTS_queuecommand");
1475 // Entry point for upper Scsi layer intiated abort. Typically
1476 // this is called if the command (for hard disk) fails to complete
1477 // in 30 seconds. This driver intends to complete all disk commands
1478 // within Exchange ".timeOut" seconds (now 7) with target status, or
1479 // in case of ".timeOut" expiration, a DID_SOFT_ERROR which causes
1481 // If any disk commands get the _abort call, except for the case that
1482 // the physical device was removed or unavailable due to hardware
1483 // errors, it should be considered a driver error and reported to
1486 int cpqfcTS_abort(Scsi_Cmnd *Cmnd)
1488 // printk(" cpqfcTS_abort called?? \n");
1492 int cpqfcTS_eh_abort(Scsi_Cmnd *Cmnd)
1495 struct Scsi_Host *HostAdapter = Cmnd->device->host;
1496 // get the pointer to our Scsi layer HBA buffer
1497 CPQFCHBA *cpqfcHBAdata = (CPQFCHBA *)HostAdapter->hostdata;
1498 PTACHYON fcChip = &cpqfcHBAdata->fcChip;
1499 FC_EXCHANGES *Exchanges = fcChip->Exchanges;
1501 ENTER("cpqfcTS_eh_abort");
1503 Cmnd->result = DID_ABORT <<16; // assume we'll find it
1505 printk(" @Linux _abort Scsi_Cmnd %p ", Cmnd);
1506 // See if we can find a Cmnd pointer that matches...
1507 // The most likely case is we accepted the command
1508 // from Linux Scsi (e.g. ceated a SEST entry) and it
1509 // got lost somehow. If we can't find any reference
1510 // to the passed pointer, we can only presume it
1511 // got completed as far as our driver is concerned.
1512 // If we found it, we will try to abort it through
1513 // common mechanism. If FC ABTS is successful (ACC)
1514 // or is rejected (RJT) by target, we will call
1515 // Scsi "done" quickly. Otherwise, the ABTS will timeout
1516 // and we'll call "done" later.
1518 // Search the SEST exchanges for a matching Cmnd ptr.
1519 for( i=0; i< TACH_SEST_LEN; i++)
1521 if( Exchanges->fcExchange[i].Cmnd == Cmnd )
1525 printk(" x_ID %Xh, type %Xh\n", i, Exchanges->fcExchange[i].type);
1527 Exchanges->fcExchange[i].status = INITIATOR_ABORT; // seconds default
1528 Exchanges->fcExchange[i].timeOut = 10; // seconds default (changed later)
1530 // Since we need to immediately return the aborted Cmnd to Scsi
1531 // upper layers, we can't make future reference to any of its
1532 // fields (e.g the Nexus).
1534 cpqfcTSPutLinkQue( cpqfcHBAdata, BLS_ABTS, &i);
1540 if( i >= TACH_SEST_LEN ) // didn't find Cmnd ptr in chip's SEST?
1542 // now search our non-SEST buffers (i.e. Cmnd waiting to
1543 // start on the HBA or waiting to complete with error for retry).
1545 // first check BadTargetCmnd
1546 for( i=0; i< CPQFCTS_MAX_TARGET_ID; i++)
1548 if( cpqfcHBAdata->BadTargetCmnd[i] == Cmnd )
1550 cpqfcHBAdata->BadTargetCmnd[i] = NULL;
1551 printk("in BadTargetCmnd Q\n");
1556 // if not found above...
1558 for( i=0; i < CPQFCTS_REQ_QUEUE_LEN; i++)
1560 if( cpqfcHBAdata->LinkDnCmnd[i] == Cmnd )
1562 cpqfcHBAdata->LinkDnCmnd[i] = NULL;
1563 printk("in LinkDnCmnd Q\n");
1569 for( i=0; i< CPQFCTS_REQ_QUEUE_LEN; i++)
1570 { // find spare slot
1571 if( cpqfcHBAdata->BoardLockCmnd[i] == Cmnd )
1573 cpqfcHBAdata->BoardLockCmnd[i] = NULL;
1574 printk("in BoardLockCmnd Q\n");
1579 Cmnd->result = DID_ERROR <<16; // Hmmm...
1580 printk("Not found! ");
1587 LEAVE("cpqfcTS_eh_abort");
1588 return 0; // (see scsi.h)
1592 // FCP-SCSI Target Device Reset
1593 // See dpANS Fibre Channel Protocol for SCSI
1594 // X3.269-199X revision 12, pg 25
1596 #ifdef SUPPORT_RESET
1598 int cpqfcTS_TargetDeviceReset( Scsi_Device *ScsiDev,
1599 unsigned int reset_flags)
1601 int timeout = 10*HZ;
1606 Scsi_Device * SDpnt;
1608 // FIXME, cpqfcTS_TargetDeviceReset needs to be fixed
1609 // similarly to how the passthrough ioctl was fixed
1610 // around the 2.5.30 kernel. Scsi_Cmnd replaced with
1611 // Scsi_Request, etc.
1612 // For now, so people don't fall into a hole...
1614 // printk(" ENTERING cpqfcTS_TargetDeviceReset() - flag=%d \n",reset_flags);
1616 if (ScsiDev->host->eh_active) return FAILED;
1618 memset( scsi_cdb, 0, sizeof( scsi_cdb));
1620 scsi_cdb[0] = RELEASE;
1622 SCpnt = scsi_get_command(ScsiDev, GFP_KERNEL);
1624 CPQFC_DECLARE_COMPLETION(wait);
1626 SCpnt->SCp.buffers_residual = FCP_TARGET_RESET;
1628 // FIXME: this would panic, SCpnt->request would be NULL.
1629 SCpnt->request->CPQFC_WAITING = &wait;
1630 scsi_do_cmd(SCpnt, scsi_cdb, NULL, 0, my_ioctl_done, timeout, retries);
1631 CPQFC_WAIT_FOR_COMPLETION(&wait);
1632 SCpnt->request->CPQFC_WAITING = NULL;
1636 if(driver_byte(SCpnt->result) != 0)
1637 switch(SCpnt->sense_buffer[2] & 0xf) {
1638 case ILLEGAL_REQUEST:
1639 if(cmd[0] == ALLOW_MEDIUM_REMOVAL) dev->lockable = 0;
1640 else printk("SCSI device (ioctl) reports ILLEGAL REQUEST.\n");
1642 case NOT_READY: // This happens if there is no disc in drive
1643 if(dev->removable && (cmd[0] != TEST_UNIT_READY)){
1644 printk(KERN_INFO "Device not ready. Make sure there is a disc in the drive.\n");
1647 case UNIT_ATTENTION:
1648 if (dev->removable){
1650 SCpnt->result = 0; // This is no longer considered an error
1651 // gag this error, VFS will log it anyway /axboe
1652 // printk(KERN_INFO "Disc change detected.\n");
1655 default: // Fall through for non-removable media
1656 printk("SCSI error: host %d id %d lun %d return code = %x\n",
1661 printk("\tSense class %x, sense error %x, extended sense %x\n",
1662 sense_class(SCpnt->sense_buffer[0]),
1663 sense_error(SCpnt->sense_buffer[0]),
1664 SCpnt->sense_buffer[2] & 0xf);
1667 result = SCpnt->result;
1669 SDpnt = SCpnt->device;
1670 scsi_put_command(SCpnt);
1673 // printk(" LEAVING cpqfcTS_TargetDeviceReset() - return SUCCESS \n");
1678 int cpqfcTS_TargetDeviceReset( Scsi_Device *ScsiDev,
1679 unsigned int reset_flags)
1684 #endif /* SUPPORT_RESET */
1686 int cpqfcTS_eh_device_reset(Scsi_Cmnd *Cmnd)
1689 Scsi_Device *SDpnt = Cmnd->device;
1690 // printk(" ENTERING cpqfcTS_eh_device_reset() \n");
1691 spin_unlock_irq(Cmnd->device->host->host_lock);
1692 retval = cpqfcTS_TargetDeviceReset( SDpnt, 0);
1693 spin_lock_irq(Cmnd->device->host->host_lock);
1698 int cpqfcTS_reset(Scsi_Cmnd *Cmnd, unsigned int reset_flags)
1701 ENTER("cpqfcTS_reset");
1703 LEAVE("cpqfcTS_reset");
1704 return SCSI_RESET_ERROR; /* Bus Reset Not supported */
1707 /* This function determines the bios parameters for a given
1708 harddisk. These tend to be numbers that are made up by the
1709 host adapter. Parameters:
1710 size, device number, list (heads, sectors,cylinders).
1714 int cpqfcTS_biosparam(struct scsi_device *sdev, struct block_device *n,
1715 sector_t capacity, int ip[])
1717 int size = capacity;
1719 ENTER("cpqfcTS_biosparam");
1728 ip[2] = size / (ip[0] * ip[1]);
1731 LEAVE("cpqfcTS_biosparam");
1737 irqreturn_t cpqfcTS_intr_handler( int irq,
1739 struct pt_regs *regs)
1742 unsigned long flags, InfLoopBrk=0;
1743 struct Scsi_Host *HostAdapter = dev_id;
1744 CPQFCHBA *cpqfcHBA = (CPQFCHBA *)HostAdapter->hostdata;
1745 int MoreMessages = 1; // assume we have something to do
1749 ENTER("intr_handler");
1750 spin_lock_irqsave( HostAdapter->host_lock, flags);
1752 IntPending = readb( cpqfcHBA->fcChip.Registers.INTPEND.address);
1754 // broken boards can generate messages forever, so
1755 // prevent the infinite loop
1756 #define INFINITE_IMQ_BREAK 10000
1760 // mask our HBA interrupts until we handle it...
1761 writeb( 0, cpqfcHBA->fcChip.Registers.INTEN.address);
1763 if( IntPending & 0x4) // "INT" - Tach wrote to IMQ
1765 while( (++InfLoopBrk < INFINITE_IMQ_BREAK) && (MoreMessages ==1) )
1767 MoreMessages = CpqTsProcessIMQEntry( HostAdapter); // ret 0 when done
1769 if( InfLoopBrk >= INFINITE_IMQ_BREAK )
1771 printk("WARNING: Compaq FC adapter generating excessive INTs -REPLACE\n");
1772 printk("or investigate alternate causes (e.g. physical FC layer)\n");
1775 else // working normally - re-enable INTs and continue
1776 writeb( 0x1F, cpqfcHBA->fcChip.Registers.INTEN.address);
1778 } // (...ProcessIMQEntry() clears INT by writing IMQ consumer)
1779 else // indications of errors or problems...
1780 // these usually indicate critical system hardware problems.
1782 if( IntPending & 0x10 )
1783 printk(" cpqfcTS adapter external memory parity error detected\n");
1784 if( IntPending & 0x8 )
1785 printk(" cpqfcTS adapter PCI master address crossed 45-bit boundary\n");
1786 if( IntPending & 0x2 )
1787 printk(" cpqfcTS adapter DMA error detected\n");
1788 if( IntPending & 0x1 ) {
1790 printk(" cpqfcTS adapter PCI error detected\n");
1791 IntStat = readb( cpqfcHBA->fcChip.Registers.INTSTAT.address);
1792 printk("cpqfc: ISR = 0x%02x\n", IntStat);
1793 if (IntStat & 0x1) {
1795 /* read the pci status register */
1796 pci_read_config_word(cpqfcHBA->PciDev, 0x06, &pcistat);
1797 printk("PCI status register is 0x%04x\n", pcistat);
1798 if (pcistat & 0x8000) printk("Parity Error Detected.\n");
1799 if (pcistat & 0x4000) printk("Signalled System Error\n");
1800 if (pcistat & 0x2000) printk("Received Master Abort\n");
1801 if (pcistat & 0x1000) printk("Received Target Abort\n");
1802 if (pcistat & 0x0800) printk("Signalled Target Abort\n");
1804 if (IntStat & 0x4) printk("(INT)\n");
1806 printk("CRS: PCI master address crossed 46 bit bouandary\n");
1807 if (IntStat & 0x10) printk("MRE: external memory parity error.\n");
1811 spin_unlock_irqrestore( HostAdapter->host_lock, flags);
1812 LEAVE("intr_handler");
1813 return IRQ_RETVAL(handled);
1819 int cpqfcTSDecodeGBICtype( PTACHYON fcChip, char cErrorString[])
1821 // Verify GBIC type (if any) and correct Tachyon Port State Machine
1822 // (GBIC) module definition is:
1823 // GPIO1, GPIO0, GPIO4 for MD2, MD1, MD0. The input states appear
1824 // to be inverted -- i.e., a setting of 111 is read when there is NO
1825 // GBIC present. The Module Def (MD) spec says 000 is "no GBIC"
1826 // Hard code the bit states to detect Copper,
1827 // Long wave (single mode), Short wave (multi-mode), and absent GBIC
1831 sprintf( cErrorString, "\nGBIC detected: ");
1833 ulBuff = fcChip->Registers.TYstatus.value & 0x13;
1836 case 0x13: // GPIO4, GPIO1, GPIO0 = 111; no GBIC!
1837 sprintf( &cErrorString[ strlen( cErrorString)],
1842 case 0x11: // Copper GBIC detected
1843 sprintf( &cErrorString[ strlen( cErrorString)],
1847 case 0x10: // Long-wave (single mode) GBIC detected
1848 sprintf( &cErrorString[ strlen( cErrorString)],
1851 case 0x1: // Short-wave (multi mode) GBIC detected
1852 sprintf( &cErrorString[ strlen( cErrorString)],
1855 default: // unknown GBIC - presumably it will work (?)
1856 sprintf( &cErrorString[ strlen( cErrorString)],
1860 } // end switch GBIC detection
1870 int cpqfcTSGetLPSM( PTACHYON fcChip, char cErrorString[])
1872 // Tachyon's Frame Manager LPSM in LinkDown state?
1873 // (For non-loop port, check PSM instead.)
1874 // return string with state and FALSE is Link Down
1878 if( fcChip->Registers.FMstatus.value & 0x80 )
1883 sprintf( &cErrorString[ strlen( cErrorString)],
1885 (fcChip->Registers.FMstatus.value >>4) & 0xf );
1888 switch( fcChip->Registers.FMstatus.value & 0xF0)
1892 sprintf( &cErrorString[ strlen( cErrorString)], "ARB");
1895 sprintf( &cErrorString[ strlen( cErrorString)], "ARBwon");
1898 sprintf( &cErrorString[ strlen( cErrorString)], "OPEN");
1901 sprintf( &cErrorString[ strlen( cErrorString)], "OPENed");
1904 sprintf( &cErrorString[ strlen( cErrorString)], "XmitCLS");
1907 sprintf( &cErrorString[ strlen( cErrorString)], "RxCLS");
1910 sprintf( &cErrorString[ strlen( cErrorString)], "Xfer");
1913 sprintf( &cErrorString[ strlen( cErrorString)], "Init");
1916 sprintf( &cErrorString[ strlen( cErrorString)], "O-IInitFin");
1919 sprintf( &cErrorString[ strlen( cErrorString)], "O-IProtocol");
1922 sprintf( &cErrorString[ strlen( cErrorString)], "O-ILipRcvd");
1925 sprintf( &cErrorString[ strlen( cErrorString)], "HostControl");
1928 sprintf( &cErrorString[ strlen( cErrorString)], "LoopFail");
1931 sprintf( &cErrorString[ strlen( cErrorString)], "Offline");
1934 sprintf( &cErrorString[ strlen( cErrorString)], "OldPort");
1938 sprintf( &cErrorString[ strlen( cErrorString)], "Monitor");
1949 #include "linux/slab.h"
1951 // Dynamic memory allocation alignment routines
1952 // HP's Tachyon Fibre Channel Controller chips require
1953 // certain memory queues and register pointers to be aligned
1954 // on various boundaries, usually the size of the Queue in question.
1955 // Alignment might be on 2, 4, 8, ... or even 512 byte boundaries.
1956 // Since most O/Ss don't allow this (usually only Cache aligned -
1957 // 32-byte boundary), these routines provide generic alignment (after
1958 // O/S allocation) at any boundary, and store the original allocated
1959 // pointer for deletion (O/S free function). Typically, we expect
1960 // these functions to only be called at HBA initialization and
1961 // removal time (load and unload times)
1963 // Memory allocation varies by compiler and platform. In the worst case,
1964 // we are only assured BYTE alignment, but in the best case, we can
1965 // request allocation on any desired boundary. Our strategy: pad the
1966 // allocation request size (i.e. waste memory) so that we are assured
1967 // of passing desired boundary near beginning of contiguous space, then
1968 // mask out lower address bits.
1969 // We define the following algorithm:
1970 // allocBoundary - compiler/platform specific address alignment
1971 // in number of bytes (default is single byte; i.e. 1)
1972 // n_alloc - number of bytes application wants @ aligned address
1973 // ab - alignment boundary, in bytes (e.g. 4, 32, ...)
1974 // t_alloc - total allocation needed to ensure desired boundary
1975 // mask - to clear least significant address bits for boundary
1977 // t_alloc = n_alloc + (ab - allocBoundary)
1978 // allocate t_alloc bytes @ alloc_address
1979 // mask = NOT (ab - 1)
1980 // (e.g. if ab=32 _0001 1111 -> _1110 0000
1981 // aligned_address = alloc_address & mask
1982 // set n_alloc bytes to 0
1983 // return aligned_address (NULL if failed)
1985 // If u32_AlignedAddress is non-zero, then search for BaseAddress (stored
1986 // from previous allocation). If found, invoke call to FREE the memory.
1987 // Return NULL if BaseAddress not found
1989 // we need about 8 allocations per HBA. Figuring at most 10 HBAs per server
1990 // size the dynamic_mem array at 80.
1992 void* fcMemManager( struct pci_dev *pdev, ALIGNED_MEM *dynamic_mem,
1993 ULONG n_alloc, ULONG ab, ULONG u32_AlignedAddress,
1994 dma_addr_t *dma_handle)
1996 USHORT allocBoundary=1; // compiler specific - worst case 1
1997 // best case - replace malloc() call
1998 // with function that allocates exactly
1999 // at desired boundary
2001 unsigned long ulAddress;
2003 void *alloc_address = 0; // def. error code / address not found
2004 LONG mask; // must be 32-bits wide!
2006 ENTER("fcMemManager");
2007 if( u32_AlignedAddress ) // are we freeing existing memory?
2009 // printk(" freeing AlignedAddress %Xh\n", u32_AlignedAddress);
2010 for( i=0; i<DYNAMIC_ALLOCATIONS; i++) // look for the base address
2012 // printk("dynamic_mem[%u].AlignedAddress %lX\n", i, dynamic_mem[i].AlignedAddress);
2013 if( dynamic_mem[i].AlignedAddress == u32_AlignedAddress )
2015 alloc_address = dynamic_mem[i].BaseAllocated; // 'success' status
2016 pci_free_consistent(pdev,dynamic_mem[i].size,
2018 dynamic_mem[i].dma_handle);
2019 dynamic_mem[i].BaseAllocated = 0; // clear for next use
2020 dynamic_mem[i].AlignedAddress = 0;
2021 dynamic_mem[i].size = 0;
2022 break; // quit for loop; done
2026 else if( n_alloc ) // want new memory?
2029 t_alloc = n_alloc + (ab - allocBoundary); // pad bytes for alignment
2030 // printk("pci_alloc_consistent() for Tach alignment: %ld bytes\n", t_alloc);
2032 // (would like to) allow thread block to free pages
2033 alloc_address = // total bytes (NumberOfBytes)
2034 pci_alloc_consistent(pdev, t_alloc, &handle);
2036 // now mask off least sig. bits of address
2037 if( alloc_address ) // (only if non-NULL)
2039 // find place to store ptr, so we
2040 // can free it later...
2042 mask = (LONG)(ab - 1); // mask all low-order bits
2043 mask = ~mask; // invert bits
2044 for( i=0; i<DYNAMIC_ALLOCATIONS; i++) // look for free slot
2046 if( dynamic_mem[i].BaseAllocated == 0) // take 1st available
2048 dynamic_mem[i].BaseAllocated = alloc_address;// address from O/S
2049 dynamic_mem[i].dma_handle = handle;
2050 if (dma_handle != NULL)
2052 // printk("handle = %p, ab=%d, boundary = %d, mask=0x%08x\n",
2053 // handle, ab, allocBoundary, mask);
2054 *dma_handle = (dma_addr_t)
2055 ((((ULONG)handle) + (ab - allocBoundary)) & mask);
2057 dynamic_mem[i].size = t_alloc;
2061 ulAddress = (unsigned long)alloc_address;
2063 ulAddress += (ab - allocBoundary); // add the alignment bytes-
2064 // then truncate address...
2065 alloc_address = (void*)(ulAddress & mask);
2067 dynamic_mem[i].AlignedAddress =
2068 (ULONG)(ulAddress & mask); // 32bit Tach address
2069 memset( alloc_address, 0, n_alloc ); // clear new memory
2071 else // O/S dynamic mem alloc failed!
2072 alloc_address = 0; // (for debugging breakpt)
2076 LEAVE("fcMemManager");
2077 return alloc_address; // good (or NULL) address
2081 static Scsi_Host_Template driver_template = {
2082 .detect = cpqfcTS_detect,
2083 .release = cpqfcTS_release,
2084 .info = cpqfcTS_info,
2085 .proc_info = cpqfcTS_proc_info,
2086 .ioctl = cpqfcTS_ioctl,
2087 .queuecommand = cpqfcTS_queuecommand,
2088 .eh_device_reset_handler = cpqfcTS_eh_device_reset,
2089 .eh_abort_handler = cpqfcTS_eh_abort,
2090 .bios_param = cpqfcTS_biosparam,
2091 .can_queue = CPQFCTS_REQ_QUEUE_LEN,
2093 .sg_tablesize = SG_ALL,
2094 .cmd_per_lun = CPQFCTS_CMD_PER_LUN,
2095 .use_clustering = ENABLE_CLUSTERING,
2097 #include "scsi_module.c"