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Merge branch 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied...
[linux-2.6/kvm.git] / drivers / scsi / qla2xxx / qla_os.c
blob209f50e788a1e893549e2caa365e23b03d897437
1 /*
2 * QLogic Fibre Channel HBA Driver
3 * Copyright (c) 2003-2008 QLogic Corporation
4 *
5 * See LICENSE.qla2xxx for copyright and licensing details.
6 */
7 #include "qla_def.h"
8
9 #include <linux/moduleparam.h>
10 #include <linux/vmalloc.h>
11 #include <linux/delay.h>
12 #include <linux/kthread.h>
13 #include <linux/mutex.h>
14 #include <linux/kobject.h>
15
16 #include <scsi/scsi_tcq.h>
17 #include <scsi/scsicam.h>
18 #include <scsi/scsi_transport.h>
19 #include <scsi/scsi_transport_fc.h>
20
21 /*
22 * Driver version
23 */
24 char qla2x00_version_str[40];
25
26 /*
27 * SRB allocation cache
28 */
29 static struct kmem_cache *srb_cachep;
30
31 int ql2xlogintimeout = 20;
32 module_param(ql2xlogintimeout, int, S_IRUGO|S_IRUSR);
33 MODULE_PARM_DESC(ql2xlogintimeout,
34 "Login timeout value in seconds.");
35
36 int qlport_down_retry;
37 module_param(qlport_down_retry, int, S_IRUGO|S_IRUSR);
38 MODULE_PARM_DESC(qlport_down_retry,
39 "Maximum number of command retries to a port that returns "
40 "a PORT-DOWN status.");
41
42 int ql2xplogiabsentdevice;
43 module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR);
44 MODULE_PARM_DESC(ql2xplogiabsentdevice,
45 "Option to enable PLOGI to devices that are not present after "
46 "a Fabric scan. This is needed for several broken switches. "
47 "Default is 0 - no PLOGI. 1 - perfom PLOGI.");
48
49 int ql2xloginretrycount = 0;
50 module_param(ql2xloginretrycount, int, S_IRUGO|S_IRUSR);
51 MODULE_PARM_DESC(ql2xloginretrycount,
52 "Specify an alternate value for the NVRAM login retry count.");
53
54 int ql2xallocfwdump = 1;
55 module_param(ql2xallocfwdump, int, S_IRUGO|S_IRUSR);
56 MODULE_PARM_DESC(ql2xallocfwdump,
57 "Option to enable allocation of memory for a firmware dump "
58 "during HBA initialization. Memory allocation requirements "
59 "vary by ISP type. Default is 1 - allocate memory.");
60
61 int ql2xextended_error_logging;
62 module_param(ql2xextended_error_logging, int, S_IRUGO|S_IWUSR);
63 MODULE_PARM_DESC(ql2xextended_error_logging,
64 "Option to enable extended error logging, "
65 "Default is 0 - no logging. 1 - log errors.");
66
67 static void qla2x00_free_device(scsi_qla_host_t *);
68
69 int ql2xfdmienable=1;
70 module_param(ql2xfdmienable, int, S_IRUGO|S_IRUSR);
71 MODULE_PARM_DESC(ql2xfdmienable,
72 "Enables FDMI registratons "
73 "Default is 0 - no FDMI. 1 - perfom FDMI.");
74
75 #define MAX_Q_DEPTH 32
76 static int ql2xmaxqdepth = MAX_Q_DEPTH;
77 module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR);
78 MODULE_PARM_DESC(ql2xmaxqdepth,
79 "Maximum queue depth to report for target devices.");
80
81 int ql2xiidmaenable=1;
82 module_param(ql2xiidmaenable, int, S_IRUGO|S_IRUSR);
83 MODULE_PARM_DESC(ql2xiidmaenable,
84 "Enables iIDMA settings "
85 "Default is 1 - perform iIDMA. 0 - no iIDMA.");
86
87 int ql2xmaxqueues = 1;
88 module_param(ql2xmaxqueues, int, S_IRUGO|S_IRUSR);
89 MODULE_PARM_DESC(ql2xmaxqueues,
90 "Enables MQ settings "
91 "Default is 1 for single queue. Set it to number \
92 of queues in MQ mode.");
93
94 int ql2xmultique_tag;
95 module_param(ql2xmultique_tag, int, S_IRUGO|S_IRUSR);
96 MODULE_PARM_DESC(ql2xmultique_tag,
97 "Enables CPU affinity settings for the driver "
98 "Default is 0 for no affinity of request and response IO. "
99 "Set it to 1 to turn on the cpu affinity.");
100
101 int ql2xfwloadbin;
102 module_param(ql2xfwloadbin, int, S_IRUGO|S_IRUSR);
103 MODULE_PARM_DESC(ql2xfwloadbin,
104 "Option to specify location from which to load ISP firmware:\n"
105 " 2 -- load firmware via the request_firmware() (hotplug)\n"
106 " interface.\n"
107 " 1 -- load firmware from flash.\n"
108 " 0 -- use default semantics.\n");
109
110 /*
111 * SCSI host template entry points
112 */
113 static int qla2xxx_slave_configure(struct scsi_device * device);
114 static int qla2xxx_slave_alloc(struct scsi_device *);
115 static int qla2xxx_scan_finished(struct Scsi_Host *, unsigned long time);
116 static void qla2xxx_scan_start(struct Scsi_Host *);
117 static void qla2xxx_slave_destroy(struct scsi_device *);
118 static int qla2xxx_queuecommand(struct scsi_cmnd *cmd,
119 void (*fn)(struct scsi_cmnd *));
120 static int qla2xxx_eh_abort(struct scsi_cmnd *);
121 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
122 static int qla2xxx_eh_target_reset(struct scsi_cmnd *);
123 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
124 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
125
126 static int qla2x00_change_queue_depth(struct scsi_device *, int, int);
127 static int qla2x00_change_queue_type(struct scsi_device *, int);
128
129 struct scsi_host_template qla2xxx_driver_template = {
130 .module = THIS_MODULE,
131 .name = QLA2XXX_DRIVER_NAME,
132 .queuecommand = qla2xxx_queuecommand,
133
134 .eh_abort_handler = qla2xxx_eh_abort,
135 .eh_device_reset_handler = qla2xxx_eh_device_reset,
136 .eh_target_reset_handler = qla2xxx_eh_target_reset,
137 .eh_bus_reset_handler = qla2xxx_eh_bus_reset,
138 .eh_host_reset_handler = qla2xxx_eh_host_reset,
139
140 .slave_configure = qla2xxx_slave_configure,
141
142 .slave_alloc = qla2xxx_slave_alloc,
143 .slave_destroy = qla2xxx_slave_destroy,
144 .scan_finished = qla2xxx_scan_finished,
145 .scan_start = qla2xxx_scan_start,
146 .change_queue_depth = qla2x00_change_queue_depth,
147 .change_queue_type = qla2x00_change_queue_type,
148 .this_id = -1,
149 .cmd_per_lun = 3,
150 .use_clustering = ENABLE_CLUSTERING,
151 .sg_tablesize = SG_ALL,
152
153 .max_sectors = 0xFFFF,
154 .shost_attrs = qla2x00_host_attrs,
155 };
156
157 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
158 struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
159
160 /* TODO Convert to inlines
161 *
162 * Timer routines
163 */
164
165 __inline__ void
166 qla2x00_start_timer(scsi_qla_host_t *vha, void *func, unsigned long interval)
167 {
168 init_timer(&vha->timer);
169 vha->timer.expires = jiffies + interval * HZ;
170 vha->timer.data = (unsigned long)vha;
171 vha->timer.function = (void (*)(unsigned long))func;
172 add_timer(&vha->timer);
173 vha->timer_active = 1;
174 }
175
176 static inline void
177 qla2x00_restart_timer(scsi_qla_host_t *vha, unsigned long interval)
178 {
179 mod_timer(&vha->timer, jiffies + interval * HZ);
180 }
181
182 static __inline__ void
183 qla2x00_stop_timer(scsi_qla_host_t *vha)
184 {
185 del_timer_sync(&vha->timer);
186 vha->timer_active = 0;
187 }
188
189 static int qla2x00_do_dpc(void *data);
190
191 static void qla2x00_rst_aen(scsi_qla_host_t *);
192
193 static int qla2x00_mem_alloc(struct qla_hw_data *, uint16_t, uint16_t,
194 struct req_que **, struct rsp_que **);
195 static void qla2x00_mem_free(struct qla_hw_data *);
196 static void qla2x00_sp_free_dma(srb_t *);
197
198 /* -------------------------------------------------------------------------- */
199 static int qla2x00_alloc_queues(struct qla_hw_data *ha)
200 {
201 ha->req_q_map = kzalloc(sizeof(struct req_que *) * ha->max_req_queues,
202 GFP_KERNEL);
203 if (!ha->req_q_map) {
204 qla_printk(KERN_WARNING, ha,
205 "Unable to allocate memory for request queue ptrs\n");
206 goto fail_req_map;
207 }
208
209 ha->rsp_q_map = kzalloc(sizeof(struct rsp_que *) * ha->max_rsp_queues,
210 GFP_KERNEL);
211 if (!ha->rsp_q_map) {
212 qla_printk(KERN_WARNING, ha,
213 "Unable to allocate memory for response queue ptrs\n");
214 goto fail_rsp_map;
215 }
216 set_bit(0, ha->rsp_qid_map);
217 set_bit(0, ha->req_qid_map);
218 return 1;
219
220 fail_rsp_map:
221 kfree(ha->req_q_map);
222 ha->req_q_map = NULL;
223 fail_req_map:
224 return -ENOMEM;
225 }
226
227 static void qla2x00_free_req_que(struct qla_hw_data *ha, struct req_que *req)
228 {
229 if (req && req->ring)
230 dma_free_coherent(&ha->pdev->dev,
231 (req->length + 1) * sizeof(request_t),
232 req->ring, req->dma);
233
234 kfree(req);
235 req = NULL;
236 }
237
238 static void qla2x00_free_rsp_que(struct qla_hw_data *ha, struct rsp_que *rsp)
239 {
240 if (rsp && rsp->ring)
241 dma_free_coherent(&ha->pdev->dev,
242 (rsp->length + 1) * sizeof(response_t),
243 rsp->ring, rsp->dma);
244
245 kfree(rsp);
246 rsp = NULL;
247 }
248
249 static void qla2x00_free_queues(struct qla_hw_data *ha)
250 {
251 struct req_que *req;
252 struct rsp_que *rsp;
253 int cnt;
254
255 for (cnt = 0; cnt < ha->max_req_queues; cnt++) {
256 req = ha->req_q_map[cnt];
257 qla2x00_free_req_que(ha, req);
258 }
259 kfree(ha->req_q_map);
260 ha->req_q_map = NULL;
261
262 for (cnt = 0; cnt < ha->max_rsp_queues; cnt++) {
263 rsp = ha->rsp_q_map[cnt];
264 qla2x00_free_rsp_que(ha, rsp);
265 }
266 kfree(ha->rsp_q_map);
267 ha->rsp_q_map = NULL;
268 }
269
270 static int qla25xx_setup_mode(struct scsi_qla_host *vha)
271 {
272 uint16_t options = 0;
273 int ques, req, ret;
274 struct qla_hw_data *ha = vha->hw;
275
276 if (!(ha->fw_attributes & BIT_6)) {
277 qla_printk(KERN_INFO, ha,
278 "Firmware is not multi-queue capable\n");
279 goto fail;
280 }
281 if (ql2xmultique_tag) {
282 /* create a request queue for IO */
283 options |= BIT_7;
284 req = qla25xx_create_req_que(ha, options, 0, 0, -1,
285 QLA_DEFAULT_QUE_QOS);
286 if (!req) {
287 qla_printk(KERN_WARNING, ha,
288 "Can't create request queue\n");
289 goto fail;
290 }
291 ha->wq = create_workqueue("qla2xxx_wq");
292 vha->req = ha->req_q_map[req];
293 options |= BIT_1;
294 for (ques = 1; ques < ha->max_rsp_queues; ques++) {
295 ret = qla25xx_create_rsp_que(ha, options, 0, 0, req);
296 if (!ret) {
297 qla_printk(KERN_WARNING, ha,
298 "Response Queue create failed\n");
299 goto fail2;
300 }
301 }
302 ha->flags.cpu_affinity_enabled = 1;
303
304 DEBUG2(qla_printk(KERN_INFO, ha,
305 "CPU affinity mode enabled, no. of response"
306 " queues:%d, no. of request queues:%d\n",
307 ha->max_rsp_queues, ha->max_req_queues));
308 }
309 return 0;
310 fail2:
311 qla25xx_delete_queues(vha);
312 destroy_workqueue(ha->wq);
313 ha->wq = NULL;
314 fail:
315 ha->mqenable = 0;
316 kfree(ha->req_q_map);
317 kfree(ha->rsp_q_map);
318 ha->max_req_queues = ha->max_rsp_queues = 1;
319 return 1;
320 }
321
322 static char *
323 qla2x00_pci_info_str(struct scsi_qla_host *vha, char *str)
324 {
325 struct qla_hw_data *ha = vha->hw;
326 static char *pci_bus_modes[] = {
327 "33", "66", "100", "133",
328 };
329 uint16_t pci_bus;
330
331 strcpy(str, "PCI");
332 pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
333 if (pci_bus) {
334 strcat(str, "-X (");
335 strcat(str, pci_bus_modes[pci_bus]);
336 } else {
337 pci_bus = (ha->pci_attr & BIT_8) >> 8;
338 strcat(str, " (");
339 strcat(str, pci_bus_modes[pci_bus]);
340 }
341 strcat(str, " MHz)");
342
343 return (str);
344 }
345
346 static char *
347 qla24xx_pci_info_str(struct scsi_qla_host *vha, char *str)
348 {
349 static char *pci_bus_modes[] = { "33", "66", "100", "133", };
350 struct qla_hw_data *ha = vha->hw;
351 uint32_t pci_bus;
352 int pcie_reg;
353
354 pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
355 if (pcie_reg) {
356 char lwstr[6];
357 uint16_t pcie_lstat, lspeed, lwidth;
358
359 pcie_reg += 0x12;
360 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
361 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
362 lwidth = (pcie_lstat &
363 (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
364
365 strcpy(str, "PCIe (");
366 if (lspeed == 1)
367 strcat(str, "2.5GT/s ");
368 else if (lspeed == 2)
369 strcat(str, "5.0GT/s ");
370 else
371 strcat(str, "<unknown> ");
372 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
373 strcat(str, lwstr);
374
375 return str;
376 }
377
378 strcpy(str, "PCI");
379 pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
380 if (pci_bus == 0 || pci_bus == 8) {
381 strcat(str, " (");
382 strcat(str, pci_bus_modes[pci_bus >> 3]);
383 } else {
384 strcat(str, "-X ");
385 if (pci_bus & BIT_2)
386 strcat(str, "Mode 2");
387 else
388 strcat(str, "Mode 1");
389 strcat(str, " (");
390 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
391 }
392 strcat(str, " MHz)");
393
394 return str;
395 }
396
397 static char *
398 qla2x00_fw_version_str(struct scsi_qla_host *vha, char *str)
399 {
400 char un_str[10];
401 struct qla_hw_data *ha = vha->hw;
402
403 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
404 ha->fw_minor_version,
405 ha->fw_subminor_version);
406
407 if (ha->fw_attributes & BIT_9) {
408 strcat(str, "FLX");
409 return (str);
410 }
411
412 switch (ha->fw_attributes & 0xFF) {
413 case 0x7:
414 strcat(str, "EF");
415 break;
416 case 0x17:
417 strcat(str, "TP");
418 break;
419 case 0x37:
420 strcat(str, "IP");
421 break;
422 case 0x77:
423 strcat(str, "VI");
424 break;
425 default:
426 sprintf(un_str, "(%x)", ha->fw_attributes);
427 strcat(str, un_str);
428 break;
429 }
430 if (ha->fw_attributes & 0x100)
431 strcat(str, "X");
432
433 return (str);
434 }
435
436 static char *
437 qla24xx_fw_version_str(struct scsi_qla_host *vha, char *str)
438 {
439 struct qla_hw_data *ha = vha->hw;
440
441 sprintf(str, "%d.%02d.%02d (%x)", ha->fw_major_version,
442 ha->fw_minor_version, ha->fw_subminor_version, ha->fw_attributes);
443 return str;
444 }
445
446 static inline srb_t *
447 qla2x00_get_new_sp(scsi_qla_host_t *vha, fc_port_t *fcport,
448 struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
449 {
450 srb_t *sp;
451 struct qla_hw_data *ha = vha->hw;
452
453 sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
454 if (!sp)
455 return sp;
456
457 sp->fcport = fcport;
458 sp->cmd = cmd;
459 sp->flags = 0;
460 CMD_SP(cmd) = (void *)sp;
461 cmd->scsi_done = done;
462 sp->ctx = NULL;
463
464 return sp;
465 }
466
467 static int
468 qla2xxx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
469 {
470 scsi_qla_host_t *vha = shost_priv(cmd->device->host);
471 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
472 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
473 struct qla_hw_data *ha = vha->hw;
474 struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
475 srb_t *sp;
476 int rval;
477
478 if (ha->flags.eeh_busy) {
479 if (ha->flags.pci_channel_io_perm_failure)
480 cmd->result = DID_NO_CONNECT << 16;
481 else
482 cmd->result = DID_REQUEUE << 16;
483 goto qc24_fail_command;
484 }
485
486 rval = fc_remote_port_chkready(rport);
487 if (rval) {
488 cmd->result = rval;
489 goto qc24_fail_command;
490 }
491
492 /* Close window on fcport/rport state-transitioning. */
493 if (fcport->drport)
494 goto qc24_target_busy;
495
496 if (atomic_read(&fcport->state) != FCS_ONLINE) {
497 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
498 atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
499 cmd->result = DID_NO_CONNECT << 16;
500 goto qc24_fail_command;
501 }
502 goto qc24_target_busy;
503 }
504
505 spin_unlock_irq(vha->host->host_lock);
506
507 sp = qla2x00_get_new_sp(base_vha, fcport, cmd, done);
508 if (!sp)
509 goto qc24_host_busy_lock;
510
511 rval = ha->isp_ops->start_scsi(sp);
512 if (rval != QLA_SUCCESS)
513 goto qc24_host_busy_free_sp;
514
515 spin_lock_irq(vha->host->host_lock);
516
517 return 0;
518
519 qc24_host_busy_free_sp:
520 qla2x00_sp_free_dma(sp);
521 mempool_free(sp, ha->srb_mempool);
522
523 qc24_host_busy_lock:
524 spin_lock_irq(vha->host->host_lock);
525 return SCSI_MLQUEUE_HOST_BUSY;
526
527 qc24_target_busy:
528 return SCSI_MLQUEUE_TARGET_BUSY;
529
530 qc24_fail_command:
531 done(cmd);
532
533 return 0;
534 }
535
536
537 /*
538 * qla2x00_eh_wait_on_command
539 * Waits for the command to be returned by the Firmware for some
540 * max time.
541 *
542 * Input:
543 * cmd = Scsi Command to wait on.
544 *
545 * Return:
546 * Not Found : 0
547 * Found : 1
548 */
549 static int
550 qla2x00_eh_wait_on_command(struct scsi_cmnd *cmd)
551 {
552 #define ABORT_POLLING_PERIOD 1000
553 #define ABORT_WAIT_ITER ((10 * 1000) / (ABORT_POLLING_PERIOD))
554 unsigned long wait_iter = ABORT_WAIT_ITER;
555 scsi_qla_host_t *vha = shost_priv(cmd->device->host);
556 struct qla_hw_data *ha = vha->hw;
557 int ret = QLA_SUCCESS;
558
559 if (unlikely(pci_channel_offline(ha->pdev)) || ha->flags.eeh_busy) {
560 DEBUG17(qla_printk(KERN_WARNING, ha, "return:eh_wait\n"));
561 return ret;
562 }
563
564 while (CMD_SP(cmd) && wait_iter--) {
565 msleep(ABORT_POLLING_PERIOD);
566 }
567 if (CMD_SP(cmd))
568 ret = QLA_FUNCTION_FAILED;
569
570 return ret;
571 }
572
573 /*
574 * qla2x00_wait_for_hba_online
575 * Wait till the HBA is online after going through
576 * <= MAX_RETRIES_OF_ISP_ABORT or
577 * finally HBA is disabled ie marked offline
578 *
579 * Input:
580 * ha - pointer to host adapter structure
581 *
582 * Note:
583 * Does context switching-Release SPIN_LOCK
584 * (if any) before calling this routine.
585 *
586 * Return:
587 * Success (Adapter is online) : 0
588 * Failed (Adapter is offline/disabled) : 1
589 */
590 int
591 qla2x00_wait_for_hba_online(scsi_qla_host_t *vha)
592 {
593 int return_status;
594 unsigned long wait_online;
595 struct qla_hw_data *ha = vha->hw;
596 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
597
598 wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
599 while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
600 test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
601 test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
602 ha->dpc_active) && time_before(jiffies, wait_online)) {
603
604 msleep(1000);
605 }
606 if (base_vha->flags.online)
607 return_status = QLA_SUCCESS;
608 else
609 return_status = QLA_FUNCTION_FAILED;
610
611 return (return_status);
612 }
613
614 int
615 qla2x00_wait_for_chip_reset(scsi_qla_host_t *vha)
616 {
617 int return_status;
618 unsigned long wait_reset;
619 struct qla_hw_data *ha = vha->hw;
620 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
621
622 wait_reset = jiffies + (MAX_LOOP_TIMEOUT * HZ);
623 while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
624 test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
625 test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
626 ha->dpc_active) && time_before(jiffies, wait_reset)) {
627
628 msleep(1000);
629
630 if (!test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags) &&
631 ha->flags.chip_reset_done)
632 break;
633 }
634 if (ha->flags.chip_reset_done)
635 return_status = QLA_SUCCESS;
636 else
637 return_status = QLA_FUNCTION_FAILED;
638
639 return return_status;
640 }
641
642 /*
643 * qla2x00_wait_for_loop_ready
644 * Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
645 * to be in LOOP_READY state.
646 * Input:
647 * ha - pointer to host adapter structure
648 *
649 * Note:
650 * Does context switching-Release SPIN_LOCK
651 * (if any) before calling this routine.
652 *
653 *
654 * Return:
655 * Success (LOOP_READY) : 0
656 * Failed (LOOP_NOT_READY) : 1
657 */
658 static inline int
659 qla2x00_wait_for_loop_ready(scsi_qla_host_t *vha)
660 {
661 int return_status = QLA_SUCCESS;
662 unsigned long loop_timeout ;
663 struct qla_hw_data *ha = vha->hw;
664 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
665
666 /* wait for 5 min at the max for loop to be ready */
667 loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
668
669 while ((!atomic_read(&base_vha->loop_down_timer) &&
670 atomic_read(&base_vha->loop_state) == LOOP_DOWN) ||
671 atomic_read(&base_vha->loop_state) != LOOP_READY) {
672 if (atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
673 return_status = QLA_FUNCTION_FAILED;
674 break;
675 }
676 msleep(1000);
677 if (time_after_eq(jiffies, loop_timeout)) {
678 return_status = QLA_FUNCTION_FAILED;
679 break;
680 }
681 }
682 return (return_status);
683 }
684
685 void
686 qla2x00_abort_fcport_cmds(fc_port_t *fcport)
687 {
688 int cnt;
689 unsigned long flags;
690 srb_t *sp;
691 scsi_qla_host_t *vha = fcport->vha;
692 struct qla_hw_data *ha = vha->hw;
693 struct req_que *req;
694
695 spin_lock_irqsave(&ha->hardware_lock, flags);
696 req = vha->req;
697 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
698 sp = req->outstanding_cmds[cnt];
699 if (!sp)
700 continue;
701 if (sp->fcport != fcport)
702 continue;
703 if (sp->ctx)
704 continue;
705
706 spin_unlock_irqrestore(&ha->hardware_lock, flags);
707 if (ha->isp_ops->abort_command(sp)) {
708 DEBUG2(qla_printk(KERN_WARNING, ha,
709 "Abort failed -- %lx\n",
710 sp->cmd->serial_number));
711 } else {
712 if (qla2x00_eh_wait_on_command(sp->cmd) !=
713 QLA_SUCCESS)
714 DEBUG2(qla_printk(KERN_WARNING, ha,
715 "Abort failed while waiting -- %lx\n",
716 sp->cmd->serial_number));
717 }
718 spin_lock_irqsave(&ha->hardware_lock, flags);
719 }
720 spin_unlock_irqrestore(&ha->hardware_lock, flags);
721 }
722
723 /**************************************************************************
724 * qla2xxx_eh_abort
725 *
726 * Description:
727 * The abort function will abort the specified command.
728 *
729 * Input:
730 * cmd = Linux SCSI command packet to be aborted.
731 *
732 * Returns:
733 * Either SUCCESS or FAILED.
734 *
735 * Note:
736 * Only return FAILED if command not returned by firmware.
737 **************************************************************************/
738 static int
739 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
740 {
741 scsi_qla_host_t *vha = shost_priv(cmd->device->host);
742 srb_t *sp;
743 int ret, i;
744 unsigned int id, lun;
745 unsigned long serial;
746 unsigned long flags;
747 int wait = 0;
748 struct qla_hw_data *ha = vha->hw;
749 struct req_que *req = vha->req;
750 srb_t *spt;
751
752 fc_block_scsi_eh(cmd);
753
754 if (!CMD_SP(cmd))
755 return SUCCESS;
756
757 ret = SUCCESS;
758
759 id = cmd->device->id;
760 lun = cmd->device->lun;
761 serial = cmd->serial_number;
762 spt = (srb_t *) CMD_SP(cmd);
763 if (!spt)
764 return SUCCESS;
765
766 /* Check active list for command command. */
767 spin_lock_irqsave(&ha->hardware_lock, flags);
768 for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
769 sp = req->outstanding_cmds[i];
770
771 if (sp == NULL)
772 continue;
773 if (sp->ctx)
774 continue;
775 if (sp->cmd != cmd)
776 continue;
777
778 DEBUG2(printk("%s(%ld): aborting sp %p from RISC."
779 " pid=%ld.\n", __func__, vha->host_no, sp, serial));
780
781 spin_unlock_irqrestore(&ha->hardware_lock, flags);
782 if (ha->isp_ops->abort_command(sp)) {
783 DEBUG2(printk("%s(%ld): abort_command "
784 "mbx failed.\n", __func__, vha->host_no));
785 ret = FAILED;
786 } else {
787 DEBUG3(printk("%s(%ld): abort_command "
788 "mbx success.\n", __func__, vha->host_no));
789 wait = 1;
790 }
791 spin_lock_irqsave(&ha->hardware_lock, flags);
792 break;
793 }
794 spin_unlock_irqrestore(&ha->hardware_lock, flags);
795
796 /* Wait for the command to be returned. */
797 if (wait) {
798 if (qla2x00_eh_wait_on_command(cmd) != QLA_SUCCESS) {
799 qla_printk(KERN_ERR, ha,
800 "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
801 "%x.\n", vha->host_no, id, lun, serial, ret);
802 ret = FAILED;
803 }
804 }
805
806 qla_printk(KERN_INFO, ha,
807 "scsi(%ld:%d:%d): Abort command issued -- %d %lx %x.\n",
808 vha->host_no, id, lun, wait, serial, ret);
809
810 return ret;
811 }
812
813 enum nexus_wait_type {
814 WAIT_HOST = 0,
815 WAIT_TARGET,
816 WAIT_LUN,
817 };
818
819 static int
820 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *vha, unsigned int t,
821 unsigned int l, srb_t *sp, enum nexus_wait_type type)
822 {
823 int cnt, match, status;
824 unsigned long flags;
825 struct qla_hw_data *ha = vha->hw;
826 struct req_que *req;
827
828 status = QLA_SUCCESS;
829 if (!sp)
830 return status;
831
832 spin_lock_irqsave(&ha->hardware_lock, flags);
833 req = vha->req;
834 for (cnt = 1; status == QLA_SUCCESS &&
835 cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
836 sp = req->outstanding_cmds[cnt];
837 if (!sp)
838 continue;
839 if (sp->ctx)
840 continue;
841 if (vha->vp_idx != sp->fcport->vha->vp_idx)
842 continue;
843 match = 0;
844 switch (type) {
845 case WAIT_HOST:
846 match = 1;
847 break;
848 case WAIT_TARGET:
849 match = sp->cmd->device->id == t;
850 break;
851 case WAIT_LUN:
852 match = (sp->cmd->device->id == t &&
853 sp->cmd->device->lun == l);
854 break;
855 }
856 if (!match)
857 continue;
858
859 spin_unlock_irqrestore(&ha->hardware_lock, flags);
860 status = qla2x00_eh_wait_on_command(sp->cmd);
861 spin_lock_irqsave(&ha->hardware_lock, flags);
862 }
863 spin_unlock_irqrestore(&ha->hardware_lock, flags);
864
865 return status;
866 }
867
868 static char *reset_errors[] = {
869 "HBA not online",
870 "HBA not ready",
871 "Task management failed",
872 "Waiting for command completions",
873 };
874
875 static int
876 __qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type,
877 struct scsi_cmnd *cmd, int (*do_reset)(struct fc_port *, unsigned int, int))
878 {
879 scsi_qla_host_t *vha = shost_priv(cmd->device->host);
880 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
881 int err;
882
883 fc_block_scsi_eh(cmd);
884
885 if (!fcport)
886 return FAILED;
887
888 qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET ISSUED.\n",
889 vha->host_no, cmd->device->id, cmd->device->lun, name);
890
891 err = 0;
892 if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
893 goto eh_reset_failed;
894 err = 1;
895 if (qla2x00_wait_for_loop_ready(vha) != QLA_SUCCESS)
896 goto eh_reset_failed;
897 err = 2;
898 if (do_reset(fcport, cmd->device->lun, cmd->request->cpu + 1)
899 != QLA_SUCCESS)
900 goto eh_reset_failed;
901 err = 3;
902 if (qla2x00_eh_wait_for_pending_commands(vha, cmd->device->id,
903 cmd->device->lun, (srb_t *) CMD_SP(cmd), type) != QLA_SUCCESS)
904 goto eh_reset_failed;
905
906 qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET SUCCEEDED.\n",
907 vha->host_no, cmd->device->id, cmd->device->lun, name);
908
909 return SUCCESS;
910
911 eh_reset_failed:
912 qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET FAILED: %s.\n"
913 , vha->host_no, cmd->device->id, cmd->device->lun, name,
914 reset_errors[err]);
915 return FAILED;
916 }
917
918 static int
919 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
920 {
921 scsi_qla_host_t *vha = shost_priv(cmd->device->host);
922 struct qla_hw_data *ha = vha->hw;
923
924 return __qla2xxx_eh_generic_reset("DEVICE", WAIT_LUN, cmd,
925 ha->isp_ops->lun_reset);
926 }
927
928 static int
929 qla2xxx_eh_target_reset(struct scsi_cmnd *cmd)
930 {
931 scsi_qla_host_t *vha = shost_priv(cmd->device->host);
932 struct qla_hw_data *ha = vha->hw;
933
934 return __qla2xxx_eh_generic_reset("TARGET", WAIT_TARGET, cmd,
935 ha->isp_ops->target_reset);
936 }
937
938 /**************************************************************************
939 * qla2xxx_eh_bus_reset
940 *
941 * Description:
942 * The bus reset function will reset the bus and abort any executing
943 * commands.
944 *
945 * Input:
946 * cmd = Linux SCSI command packet of the command that cause the
947 * bus reset.
948 *
949 * Returns:
950 * SUCCESS/FAILURE (defined as macro in scsi.h).
951 *
952 **************************************************************************/
953 static int
954 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
955 {
956 scsi_qla_host_t *vha = shost_priv(cmd->device->host);
957 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
958 int ret = FAILED;
959 unsigned int id, lun;
960 unsigned long serial;
961 srb_t *sp = (srb_t *) CMD_SP(cmd);
962
963 fc_block_scsi_eh(cmd);
964
965 id = cmd->device->id;
966 lun = cmd->device->lun;
967 serial = cmd->serial_number;
968
969 if (!fcport)
970 return ret;
971
972 qla_printk(KERN_INFO, vha->hw,
973 "scsi(%ld:%d:%d): BUS RESET ISSUED.\n", vha->host_no, id, lun);
974
975 if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
976 DEBUG2(printk("%s failed:board disabled\n",__func__));
977 goto eh_bus_reset_done;
978 }
979
980 if (qla2x00_wait_for_loop_ready(vha) == QLA_SUCCESS) {
981 if (qla2x00_loop_reset(vha) == QLA_SUCCESS)
982 ret = SUCCESS;
983 }
984 if (ret == FAILED)
985 goto eh_bus_reset_done;
986
987 /* Flush outstanding commands. */
988 if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, sp, WAIT_HOST) !=
989 QLA_SUCCESS)
990 ret = FAILED;
991
992 eh_bus_reset_done:
993 qla_printk(KERN_INFO, vha->hw, "%s: reset %s\n", __func__,
994 (ret == FAILED) ? "failed" : "succeded");
995
996 return ret;
997 }
998
999 /**************************************************************************
1000 * qla2xxx_eh_host_reset
1001 *
1002 * Description:
1003 * The reset function will reset the Adapter.
1004 *
1005 * Input:
1006 * cmd = Linux SCSI command packet of the command that cause the
1007 * adapter reset.
1008 *
1009 * Returns:
1010 * Either SUCCESS or FAILED.
1011 *
1012 * Note:
1013 **************************************************************************/
1014 static int
1015 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
1016 {
1017 scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1018 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
1019 struct qla_hw_data *ha = vha->hw;
1020 int ret = FAILED;
1021 unsigned int id, lun;
1022 unsigned long serial;
1023 srb_t *sp = (srb_t *) CMD_SP(cmd);
1024 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
1025
1026 fc_block_scsi_eh(cmd);
1027
1028 id = cmd->device->id;
1029 lun = cmd->device->lun;
1030 serial = cmd->serial_number;
1031
1032 if (!fcport)
1033 return ret;
1034
1035 qla_printk(KERN_INFO, ha,
1036 "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", vha->host_no, id, lun);
1037
1038 if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
1039 goto eh_host_reset_lock;
1040
1041 /*
1042 * Fixme-may be dpc thread is active and processing
1043 * loop_resync,so wait a while for it to
1044 * be completed and then issue big hammer.Otherwise
1045 * it may cause I/O failure as big hammer marks the
1046 * devices as lost kicking of the port_down_timer
1047 * while dpc is stuck for the mailbox to complete.
1048 */
1049 qla2x00_wait_for_loop_ready(vha);
1050 if (vha != base_vha) {
1051 if (qla2x00_vp_abort_isp(vha))
1052 goto eh_host_reset_lock;
1053 } else {
1054 if (ha->wq)
1055 flush_workqueue(ha->wq);
1056
1057 set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1058 if (qla2x00_abort_isp(base_vha)) {
1059 clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1060 /* failed. schedule dpc to try */
1061 set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags);
1062
1063 if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
1064 goto eh_host_reset_lock;
1065 }
1066 clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1067 }
1068
1069 /* Waiting for command to be returned to OS.*/
1070 if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, sp, WAIT_HOST) ==
1071 QLA_SUCCESS)
1072 ret = SUCCESS;
1073
1074 eh_host_reset_lock:
1075 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
1076 (ret == FAILED) ? "failed" : "succeded");
1077
1078 return ret;
1079 }
1080
1081 /*
1082 * qla2x00_loop_reset
1083 * Issue loop reset.
1084 *
1085 * Input:
1086 * ha = adapter block pointer.
1087 *
1088 * Returns:
1089 * 0 = success
1090 */
1091 int
1092 qla2x00_loop_reset(scsi_qla_host_t *vha)
1093 {
1094 int ret;
1095 struct fc_port *fcport;
1096 struct qla_hw_data *ha = vha->hw;
1097
1098 if (ha->flags.enable_lip_full_login && !IS_QLA81XX(ha)) {
1099 ret = qla2x00_full_login_lip(vha);
1100 if (ret != QLA_SUCCESS) {
1101 DEBUG2_3(printk("%s(%ld): failed: "
1102 "full_login_lip=%d.\n", __func__, vha->host_no,
1103 ret));
1104 }
1105 atomic_set(&vha->loop_state, LOOP_DOWN);
1106 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1107 qla2x00_mark_all_devices_lost(vha, 0);
1108 qla2x00_wait_for_loop_ready(vha);
1109 }
1110
1111 if (ha->flags.enable_lip_reset) {
1112 ret = qla2x00_lip_reset(vha);
1113 if (ret != QLA_SUCCESS) {
1114 DEBUG2_3(printk("%s(%ld): failed: "
1115 "lip_reset=%d.\n", __func__, vha->host_no, ret));
1116 } else
1117 qla2x00_wait_for_loop_ready(vha);
1118 }
1119
1120 if (ha->flags.enable_target_reset) {
1121 list_for_each_entry(fcport, &vha->vp_fcports, list) {
1122 if (fcport->port_type != FCT_TARGET)
1123 continue;
1124
1125 ret = ha->isp_ops->target_reset(fcport, 0, 0);
1126 if (ret != QLA_SUCCESS) {
1127 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1128 "target_reset=%d d_id=%x.\n", __func__,
1129 vha->host_no, ret, fcport->d_id.b24));
1130 }
1131 }
1132 }
1133 /* Issue marker command only when we are going to start the I/O */
1134 vha->marker_needed = 1;
1135
1136 return QLA_SUCCESS;
1137 }
1138
1139 void
1140 qla2x00_abort_all_cmds(scsi_qla_host_t *vha, int res)
1141 {
1142 int que, cnt;
1143 unsigned long flags;
1144 srb_t *sp;
1145 struct srb_ctx *ctx;
1146 struct qla_hw_data *ha = vha->hw;
1147 struct req_que *req;
1148
1149 spin_lock_irqsave(&ha->hardware_lock, flags);
1150 for (que = 0; que < ha->max_req_queues; que++) {
1151 req = ha->req_q_map[que];
1152 if (!req)
1153 continue;
1154 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
1155 sp = req->outstanding_cmds[cnt];
1156 if (sp) {
1157 req->outstanding_cmds[cnt] = NULL;
1158 if (!sp->ctx) {
1159 sp->cmd->result = res;
1160 qla2x00_sp_compl(ha, sp);
1161 } else {
1162 ctx = sp->ctx;
1163 del_timer_sync(&ctx->timer);
1164 ctx->free(sp);
1165 }
1166 }
1167 }
1168 }
1169 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1170 }
1171
1172 static int
1173 qla2xxx_slave_alloc(struct scsi_device *sdev)
1174 {
1175 struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1176
1177 if (!rport || fc_remote_port_chkready(rport))
1178 return -ENXIO;
1179
1180 sdev->hostdata = *(fc_port_t **)rport->dd_data;
1181
1182 return 0;
1183 }
1184
1185 static int
1186 qla2xxx_slave_configure(struct scsi_device *sdev)
1187 {
1188 scsi_qla_host_t *vha = shost_priv(sdev->host);
1189 struct qla_hw_data *ha = vha->hw;
1190 struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1191 fc_port_t *fcport = *(fc_port_t **)rport->dd_data;
1192 struct req_que *req = vha->req;
1193
1194 if (sdev->tagged_supported)
1195 scsi_activate_tcq(sdev, req->max_q_depth);
1196 else
1197 scsi_deactivate_tcq(sdev, req->max_q_depth);
1198
1199 rport->dev_loss_tmo = ha->port_down_retry_count;
1200 if (sdev->type == TYPE_TAPE)
1201 fcport->flags |= FCF_TAPE_PRESENT;
1202
1203 return 0;
1204 }
1205
1206 static void
1207 qla2xxx_slave_destroy(struct scsi_device *sdev)
1208 {
1209 sdev->hostdata = NULL;
1210 }
1211
1212 static void qla2x00_handle_queue_full(struct scsi_device *sdev, int qdepth)
1213 {
1214 fc_port_t *fcport = (struct fc_port *) sdev->hostdata;
1215
1216 if (!scsi_track_queue_full(sdev, qdepth))
1217 return;
1218
1219 DEBUG2(qla_printk(KERN_INFO, fcport->vha->hw,
1220 "scsi(%ld:%d:%d:%d): Queue depth adjusted-down to %d.\n",
1221 fcport->vha->host_no, sdev->channel, sdev->id, sdev->lun,
1222 sdev->queue_depth));
1223 }
1224
1225 static void qla2x00_adjust_sdev_qdepth_up(struct scsi_device *sdev, int qdepth)
1226 {
1227 fc_port_t *fcport = sdev->hostdata;
1228 struct scsi_qla_host *vha = fcport->vha;
1229 struct qla_hw_data *ha = vha->hw;
1230 struct req_que *req = NULL;
1231
1232 req = vha->req;
1233 if (!req)
1234 return;
1235
1236 if (req->max_q_depth <= sdev->queue_depth || req->max_q_depth < qdepth)
1237 return;
1238
1239 if (sdev->ordered_tags)
1240 scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, qdepth);
1241 else
1242 scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, qdepth);
1243
1244 DEBUG2(qla_printk(KERN_INFO, ha,
1245 "scsi(%ld:%d:%d:%d): Queue depth adjusted-up to %d.\n",
1246 fcport->vha->host_no, sdev->channel, sdev->id, sdev->lun,
1247 sdev->queue_depth));
1248 }
1249
1250 static int
1251 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
1252 {
1253 switch (reason) {
1254 case SCSI_QDEPTH_DEFAULT:
1255 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1256 break;
1257 case SCSI_QDEPTH_QFULL:
1258 qla2x00_handle_queue_full(sdev, qdepth);
1259 break;
1260 case SCSI_QDEPTH_RAMP_UP:
1261 qla2x00_adjust_sdev_qdepth_up(sdev, qdepth);
1262 break;
1263 default:
1264 return EOPNOTSUPP;
1265 }
1266
1267 return sdev->queue_depth;
1268 }
1269
1270 static int
1271 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1272 {
1273 if (sdev->tagged_supported) {
1274 scsi_set_tag_type(sdev, tag_type);
1275 if (tag_type)
1276 scsi_activate_tcq(sdev, sdev->queue_depth);
1277 else
1278 scsi_deactivate_tcq(sdev, sdev->queue_depth);
1279 } else
1280 tag_type = 0;
1281
1282 return tag_type;
1283 }
1284
1285 /**
1286 * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1287 * @ha: HA context
1288 *
1289 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1290 * supported addressing method.
1291 */
1292 static void
1293 qla2x00_config_dma_addressing(struct qla_hw_data *ha)
1294 {
1295 /* Assume a 32bit DMA mask. */
1296 ha->flags.enable_64bit_addressing = 0;
1297
1298 if (!dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(64))) {
1299 /* Any upper-dword bits set? */
1300 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1301 !pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) {
1302 /* Ok, a 64bit DMA mask is applicable. */
1303 ha->flags.enable_64bit_addressing = 1;
1304 ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1305 ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1306 return;
1307 }
1308 }
1309
1310 dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(32));
1311 pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(32));
1312 }
1313
1314 static void
1315 qla2x00_enable_intrs(struct qla_hw_data *ha)
1316 {
1317 unsigned long flags = 0;
1318 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1319
1320 spin_lock_irqsave(&ha->hardware_lock, flags);
1321 ha->interrupts_on = 1;
1322 /* enable risc and host interrupts */
1323 WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1324 RD_REG_WORD(&reg->ictrl);
1325 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1326
1327 }
1328
1329 static void
1330 qla2x00_disable_intrs(struct qla_hw_data *ha)
1331 {
1332 unsigned long flags = 0;
1333 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1334
1335 spin_lock_irqsave(&ha->hardware_lock, flags);
1336 ha->interrupts_on = 0;
1337 /* disable risc and host interrupts */
1338 WRT_REG_WORD(&reg->ictrl, 0);
1339 RD_REG_WORD(&reg->ictrl);
1340 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1341 }
1342
1343 static void
1344 qla24xx_enable_intrs(struct qla_hw_data *ha)
1345 {
1346 unsigned long flags = 0;
1347 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1348
1349 spin_lock_irqsave(&ha->hardware_lock, flags);
1350 ha->interrupts_on = 1;
1351 WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1352 RD_REG_DWORD(&reg->ictrl);
1353 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1354 }
1355
1356 static void
1357 qla24xx_disable_intrs(struct qla_hw_data *ha)
1358 {
1359 unsigned long flags = 0;
1360 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1361
1362 if (IS_NOPOLLING_TYPE(ha))
1363 return;
1364 spin_lock_irqsave(&ha->hardware_lock, flags);
1365 ha->interrupts_on = 0;
1366 WRT_REG_DWORD(&reg->ictrl, 0);
1367 RD_REG_DWORD(&reg->ictrl);
1368 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1369 }
1370
1371 static struct isp_operations qla2100_isp_ops = {
1372 .pci_config = qla2100_pci_config,
1373 .reset_chip = qla2x00_reset_chip,
1374 .chip_diag = qla2x00_chip_diag,
1375 .config_rings = qla2x00_config_rings,
1376 .reset_adapter = qla2x00_reset_adapter,
1377 .nvram_config = qla2x00_nvram_config,
1378 .update_fw_options = qla2x00_update_fw_options,
1379 .load_risc = qla2x00_load_risc,
1380 .pci_info_str = qla2x00_pci_info_str,
1381 .fw_version_str = qla2x00_fw_version_str,
1382 .intr_handler = qla2100_intr_handler,
1383 .enable_intrs = qla2x00_enable_intrs,
1384 .disable_intrs = qla2x00_disable_intrs,
1385 .abort_command = qla2x00_abort_command,
1386 .target_reset = qla2x00_abort_target,
1387 .lun_reset = qla2x00_lun_reset,
1388 .fabric_login = qla2x00_login_fabric,
1389 .fabric_logout = qla2x00_fabric_logout,
1390 .calc_req_entries = qla2x00_calc_iocbs_32,
1391 .build_iocbs = qla2x00_build_scsi_iocbs_32,
1392 .prep_ms_iocb = qla2x00_prep_ms_iocb,
1393 .prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb,
1394 .read_nvram = qla2x00_read_nvram_data,
1395 .write_nvram = qla2x00_write_nvram_data,
1396 .fw_dump = qla2100_fw_dump,
1397 .beacon_on = NULL,
1398 .beacon_off = NULL,
1399 .beacon_blink = NULL,
1400 .read_optrom = qla2x00_read_optrom_data,
1401 .write_optrom = qla2x00_write_optrom_data,
1402 .get_flash_version = qla2x00_get_flash_version,
1403 .start_scsi = qla2x00_start_scsi,
1404 };
1405
1406 static struct isp_operations qla2300_isp_ops = {
1407 .pci_config = qla2300_pci_config,
1408 .reset_chip = qla2x00_reset_chip,
1409 .chip_diag = qla2x00_chip_diag,
1410 .config_rings = qla2x00_config_rings,
1411 .reset_adapter = qla2x00_reset_adapter,
1412 .nvram_config = qla2x00_nvram_config,
1413 .update_fw_options = qla2x00_update_fw_options,
1414 .load_risc = qla2x00_load_risc,
1415 .pci_info_str = qla2x00_pci_info_str,
1416 .fw_version_str = qla2x00_fw_version_str,
1417 .intr_handler = qla2300_intr_handler,
1418 .enable_intrs = qla2x00_enable_intrs,
1419 .disable_intrs = qla2x00_disable_intrs,
1420 .abort_command = qla2x00_abort_command,
1421 .target_reset = qla2x00_abort_target,
1422 .lun_reset = qla2x00_lun_reset,
1423 .fabric_login = qla2x00_login_fabric,
1424 .fabric_logout = qla2x00_fabric_logout,
1425 .calc_req_entries = qla2x00_calc_iocbs_32,
1426 .build_iocbs = qla2x00_build_scsi_iocbs_32,
1427 .prep_ms_iocb = qla2x00_prep_ms_iocb,
1428 .prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb,
1429 .read_nvram = qla2x00_read_nvram_data,
1430 .write_nvram = qla2x00_write_nvram_data,
1431 .fw_dump = qla2300_fw_dump,
1432 .beacon_on = qla2x00_beacon_on,
1433 .beacon_off = qla2x00_beacon_off,
1434 .beacon_blink = qla2x00_beacon_blink,
1435 .read_optrom = qla2x00_read_optrom_data,
1436 .write_optrom = qla2x00_write_optrom_data,
1437 .get_flash_version = qla2x00_get_flash_version,
1438 .start_scsi = qla2x00_start_scsi,
1439 };
1440
1441 static struct isp_operations qla24xx_isp_ops = {
1442 .pci_config = qla24xx_pci_config,
1443 .reset_chip = qla24xx_reset_chip,
1444 .chip_diag = qla24xx_chip_diag,
1445 .config_rings = qla24xx_config_rings,
1446 .reset_adapter = qla24xx_reset_adapter,
1447 .nvram_config = qla24xx_nvram_config,
1448 .update_fw_options = qla24xx_update_fw_options,
1449 .load_risc = qla24xx_load_risc,
1450 .pci_info_str = qla24xx_pci_info_str,
1451 .fw_version_str = qla24xx_fw_version_str,
1452 .intr_handler = qla24xx_intr_handler,
1453 .enable_intrs = qla24xx_enable_intrs,
1454 .disable_intrs = qla24xx_disable_intrs,
1455 .abort_command = qla24xx_abort_command,
1456 .target_reset = qla24xx_abort_target,
1457 .lun_reset = qla24xx_lun_reset,
1458 .fabric_login = qla24xx_login_fabric,
1459 .fabric_logout = qla24xx_fabric_logout,
1460 .calc_req_entries = NULL,
1461 .build_iocbs = NULL,
1462 .prep_ms_iocb = qla24xx_prep_ms_iocb,
1463 .prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb,
1464 .read_nvram = qla24xx_read_nvram_data,
1465 .write_nvram = qla24xx_write_nvram_data,
1466 .fw_dump = qla24xx_fw_dump,
1467 .beacon_on = qla24xx_beacon_on,
1468 .beacon_off = qla24xx_beacon_off,
1469 .beacon_blink = qla24xx_beacon_blink,
1470 .read_optrom = qla24xx_read_optrom_data,
1471 .write_optrom = qla24xx_write_optrom_data,
1472 .get_flash_version = qla24xx_get_flash_version,
1473 .start_scsi = qla24xx_start_scsi,
1474 };
1475
1476 static struct isp_operations qla25xx_isp_ops = {
1477 .pci_config = qla25xx_pci_config,
1478 .reset_chip = qla24xx_reset_chip,
1479 .chip_diag = qla24xx_chip_diag,
1480 .config_rings = qla24xx_config_rings,
1481 .reset_adapter = qla24xx_reset_adapter,
1482 .nvram_config = qla24xx_nvram_config,
1483 .update_fw_options = qla24xx_update_fw_options,
1484 .load_risc = qla24xx_load_risc,
1485 .pci_info_str = qla24xx_pci_info_str,
1486 .fw_version_str = qla24xx_fw_version_str,
1487 .intr_handler = qla24xx_intr_handler,
1488 .enable_intrs = qla24xx_enable_intrs,
1489 .disable_intrs = qla24xx_disable_intrs,
1490 .abort_command = qla24xx_abort_command,
1491 .target_reset = qla24xx_abort_target,
1492 .lun_reset = qla24xx_lun_reset,
1493 .fabric_login = qla24xx_login_fabric,
1494 .fabric_logout = qla24xx_fabric_logout,
1495 .calc_req_entries = NULL,
1496 .build_iocbs = NULL,
1497 .prep_ms_iocb = qla24xx_prep_ms_iocb,
1498 .prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb,
1499 .read_nvram = qla25xx_read_nvram_data,
1500 .write_nvram = qla25xx_write_nvram_data,
1501 .fw_dump = qla25xx_fw_dump,
1502 .beacon_on = qla24xx_beacon_on,
1503 .beacon_off = qla24xx_beacon_off,
1504 .beacon_blink = qla24xx_beacon_blink,
1505 .read_optrom = qla25xx_read_optrom_data,
1506 .write_optrom = qla24xx_write_optrom_data,
1507 .get_flash_version = qla24xx_get_flash_version,
1508 .start_scsi = qla24xx_start_scsi,
1509 };
1510
1511 static struct isp_operations qla81xx_isp_ops = {
1512 .pci_config = qla25xx_pci_config,
1513 .reset_chip = qla24xx_reset_chip,
1514 .chip_diag = qla24xx_chip_diag,
1515 .config_rings = qla24xx_config_rings,
1516 .reset_adapter = qla24xx_reset_adapter,
1517 .nvram_config = qla81xx_nvram_config,
1518 .update_fw_options = qla81xx_update_fw_options,
1519 .load_risc = qla81xx_load_risc,
1520 .pci_info_str = qla24xx_pci_info_str,
1521 .fw_version_str = qla24xx_fw_version_str,
1522 .intr_handler = qla24xx_intr_handler,
1523 .enable_intrs = qla24xx_enable_intrs,
1524 .disable_intrs = qla24xx_disable_intrs,
1525 .abort_command = qla24xx_abort_command,
1526 .target_reset = qla24xx_abort_target,
1527 .lun_reset = qla24xx_lun_reset,
1528 .fabric_login = qla24xx_login_fabric,
1529 .fabric_logout = qla24xx_fabric_logout,
1530 .calc_req_entries = NULL,
1531 .build_iocbs = NULL,
1532 .prep_ms_iocb = qla24xx_prep_ms_iocb,
1533 .prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb,
1534 .read_nvram = NULL,
1535 .write_nvram = NULL,
1536 .fw_dump = qla81xx_fw_dump,
1537 .beacon_on = qla24xx_beacon_on,
1538 .beacon_off = qla24xx_beacon_off,
1539 .beacon_blink = qla24xx_beacon_blink,
1540 .read_optrom = qla25xx_read_optrom_data,
1541 .write_optrom = qla24xx_write_optrom_data,
1542 .get_flash_version = qla24xx_get_flash_version,
1543 .start_scsi = qla24xx_start_scsi,
1544 };
1545
1546 static inline void
1547 qla2x00_set_isp_flags(struct qla_hw_data *ha)
1548 {
1549 ha->device_type = DT_EXTENDED_IDS;
1550 switch (ha->pdev->device) {
1551 case PCI_DEVICE_ID_QLOGIC_ISP2100:
1552 ha->device_type |= DT_ISP2100;
1553 ha->device_type &= ~DT_EXTENDED_IDS;
1554 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1555 break;
1556 case PCI_DEVICE_ID_QLOGIC_ISP2200:
1557 ha->device_type |= DT_ISP2200;
1558 ha->device_type &= ~DT_EXTENDED_IDS;
1559 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1560 break;
1561 case PCI_DEVICE_ID_QLOGIC_ISP2300:
1562 ha->device_type |= DT_ISP2300;
1563 ha->device_type |= DT_ZIO_SUPPORTED;
1564 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1565 break;
1566 case PCI_DEVICE_ID_QLOGIC_ISP2312:
1567 ha->device_type |= DT_ISP2312;
1568 ha->device_type |= DT_ZIO_SUPPORTED;
1569 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1570 break;
1571 case PCI_DEVICE_ID_QLOGIC_ISP2322:
1572 ha->device_type |= DT_ISP2322;
1573 ha->device_type |= DT_ZIO_SUPPORTED;
1574 if (ha->pdev->subsystem_vendor == 0x1028 &&
1575 ha->pdev->subsystem_device == 0x0170)
1576 ha->device_type |= DT_OEM_001;
1577 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1578 break;
1579 case PCI_DEVICE_ID_QLOGIC_ISP6312:
1580 ha->device_type |= DT_ISP6312;
1581 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1582 break;
1583 case PCI_DEVICE_ID_QLOGIC_ISP6322:
1584 ha->device_type |= DT_ISP6322;
1585 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1586 break;
1587 case PCI_DEVICE_ID_QLOGIC_ISP2422:
1588 ha->device_type |= DT_ISP2422;
1589 ha->device_type |= DT_ZIO_SUPPORTED;
1590 ha->device_type |= DT_FWI2;
1591 ha->device_type |= DT_IIDMA;
1592 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1593 break;
1594 case PCI_DEVICE_ID_QLOGIC_ISP2432:
1595 ha->device_type |= DT_ISP2432;
1596 ha->device_type |= DT_ZIO_SUPPORTED;
1597 ha->device_type |= DT_FWI2;
1598 ha->device_type |= DT_IIDMA;
1599 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1600 break;
1601 case PCI_DEVICE_ID_QLOGIC_ISP8432:
1602 ha->device_type |= DT_ISP8432;
1603 ha->device_type |= DT_ZIO_SUPPORTED;
1604 ha->device_type |= DT_FWI2;
1605 ha->device_type |= DT_IIDMA;
1606 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1607 break;
1608 case PCI_DEVICE_ID_QLOGIC_ISP5422:
1609 ha->device_type |= DT_ISP5422;
1610 ha->device_type |= DT_FWI2;
1611 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1612 break;
1613 case PCI_DEVICE_ID_QLOGIC_ISP5432:
1614 ha->device_type |= DT_ISP5432;
1615 ha->device_type |= DT_FWI2;
1616 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1617 break;
1618 case PCI_DEVICE_ID_QLOGIC_ISP2532:
1619 ha->device_type |= DT_ISP2532;
1620 ha->device_type |= DT_ZIO_SUPPORTED;
1621 ha->device_type |= DT_FWI2;
1622 ha->device_type |= DT_IIDMA;
1623 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1624 break;
1625 case PCI_DEVICE_ID_QLOGIC_ISP8001:
1626 ha->device_type |= DT_ISP8001;
1627 ha->device_type |= DT_ZIO_SUPPORTED;
1628 ha->device_type |= DT_FWI2;
1629 ha->device_type |= DT_IIDMA;
1630 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1631 break;
1632 }
1633
1634 /* Get adapter physical port no from interrupt pin register. */
1635 pci_read_config_byte(ha->pdev, PCI_INTERRUPT_PIN, &ha->port_no);
1636 if (ha->port_no & 1)
1637 ha->flags.port0 = 1;
1638 else
1639 ha->flags.port0 = 0;
1640 }
1641
1642 static int
1643 qla2x00_iospace_config(struct qla_hw_data *ha)
1644 {
1645 resource_size_t pio;
1646 uint16_t msix;
1647 int cpus;
1648
1649 if (pci_request_selected_regions(ha->pdev, ha->bars,
1650 QLA2XXX_DRIVER_NAME)) {
1651 qla_printk(KERN_WARNING, ha,
1652 "Failed to reserve PIO/MMIO regions (%s)\n",
1653 pci_name(ha->pdev));
1654
1655 goto iospace_error_exit;
1656 }
1657 if (!(ha->bars & 1))
1658 goto skip_pio;
1659
1660 /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1661 pio = pci_resource_start(ha->pdev, 0);
1662 if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
1663 if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
1664 qla_printk(KERN_WARNING, ha,
1665 "Invalid PCI I/O region size (%s)...\n",
1666 pci_name(ha->pdev));
1667 pio = 0;
1668 }
1669 } else {
1670 qla_printk(KERN_WARNING, ha,
1671 "region #0 not a PIO resource (%s)...\n",
1672 pci_name(ha->pdev));
1673 pio = 0;
1674 }
1675 ha->pio_address = pio;
1676
1677 skip_pio:
1678 /* Use MMIO operations for all accesses. */
1679 if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
1680 qla_printk(KERN_ERR, ha,
1681 "region #1 not an MMIO resource (%s), aborting\n",
1682 pci_name(ha->pdev));
1683 goto iospace_error_exit;
1684 }
1685 if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
1686 qla_printk(KERN_ERR, ha,
1687 "Invalid PCI mem region size (%s), aborting\n",
1688 pci_name(ha->pdev));
1689 goto iospace_error_exit;
1690 }
1691
1692 ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
1693 if (!ha->iobase) {
1694 qla_printk(KERN_ERR, ha,
1695 "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1696
1697 goto iospace_error_exit;
1698 }
1699
1700 /* Determine queue resources */
1701 ha->max_req_queues = ha->max_rsp_queues = 1;
1702 if ((ql2xmaxqueues <= 1 || ql2xmultique_tag < 1) &&
1703 (!IS_QLA25XX(ha) && !IS_QLA81XX(ha)))
1704 goto mqiobase_exit;
1705 ha->mqiobase = ioremap(pci_resource_start(ha->pdev, 3),
1706 pci_resource_len(ha->pdev, 3));
1707 if (ha->mqiobase) {
1708 /* Read MSIX vector size of the board */
1709 pci_read_config_word(ha->pdev, QLA_PCI_MSIX_CONTROL, &msix);
1710 ha->msix_count = msix;
1711 /* Max queues are bounded by available msix vectors */
1712 /* queue 0 uses two msix vectors */
1713 if (ql2xmultique_tag) {
1714 cpus = num_online_cpus();
1715 ha->max_rsp_queues = (ha->msix_count - 1 > cpus) ?
1716 (cpus + 1) : (ha->msix_count - 1);
1717 ha->max_req_queues = 2;
1718 } else if (ql2xmaxqueues > 1) {
1719 ha->max_req_queues = ql2xmaxqueues > QLA_MQ_SIZE ?
1720 QLA_MQ_SIZE : ql2xmaxqueues;
1721 DEBUG2(qla_printk(KERN_INFO, ha, "QoS mode set, max no"
1722 " of request queues:%d\n", ha->max_req_queues));
1723 }
1724 qla_printk(KERN_INFO, ha,
1725 "MSI-X vector count: %d\n", msix);
1726 } else
1727 qla_printk(KERN_INFO, ha, "BAR 3 not enabled\n");
1728
1729 mqiobase_exit:
1730 ha->msix_count = ha->max_rsp_queues + 1;
1731 return (0);
1732
1733 iospace_error_exit:
1734 return (-ENOMEM);
1735 }
1736
1737 static void
1738 qla2xxx_scan_start(struct Scsi_Host *shost)
1739 {
1740 scsi_qla_host_t *vha = shost_priv(shost);
1741
1742 if (vha->hw->flags.running_gold_fw)
1743 return;
1744
1745 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1746 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1747 set_bit(RSCN_UPDATE, &vha->dpc_flags);
1748 set_bit(NPIV_CONFIG_NEEDED, &vha->dpc_flags);
1749 }
1750
1751 static int
1752 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
1753 {
1754 scsi_qla_host_t *vha = shost_priv(shost);
1755
1756 if (!vha->host)
1757 return 1;
1758 if (time > vha->hw->loop_reset_delay * HZ)
1759 return 1;
1760
1761 return atomic_read(&vha->loop_state) == LOOP_READY;
1762 }
1763
1764 /*
1765 * PCI driver interface
1766 */
1767 static int __devinit
1768 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1769 {
1770 int ret = -ENODEV;
1771 struct Scsi_Host *host;
1772 scsi_qla_host_t *base_vha = NULL;
1773 struct qla_hw_data *ha;
1774 char pci_info[30];
1775 char fw_str[30];
1776 struct scsi_host_template *sht;
1777 int bars, max_id, mem_only = 0;
1778 uint16_t req_length = 0, rsp_length = 0;
1779 struct req_que *req = NULL;
1780 struct rsp_que *rsp = NULL;
1781
1782 bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
1783 sht = &qla2xxx_driver_template;
1784 if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1785 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
1786 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8432 ||
1787 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
1788 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
1789 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532 ||
1790 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8001) {
1791 bars = pci_select_bars(pdev, IORESOURCE_MEM);
1792 mem_only = 1;
1793 }
1794
1795 if (mem_only) {
1796 if (pci_enable_device_mem(pdev))
1797 goto probe_out;
1798 } else {
1799 if (pci_enable_device(pdev))
1800 goto probe_out;
1801 }
1802
1803 /* This may fail but that's ok */
1804 pci_enable_pcie_error_reporting(pdev);
1805
1806 ha = kzalloc(sizeof(struct qla_hw_data), GFP_KERNEL);
1807 if (!ha) {
1808 DEBUG(printk("Unable to allocate memory for ha\n"));
1809 goto probe_out;
1810 }
1811 ha->pdev = pdev;
1812
1813 /* Clear our data area */
1814 ha->bars = bars;
1815 ha->mem_only = mem_only;
1816 spin_lock_init(&ha->hardware_lock);
1817
1818 /* Set ISP-type information. */
1819 qla2x00_set_isp_flags(ha);
1820
1821 /* Set EEH reset type to fundamental if required by hba */
1822 if ( IS_QLA24XX(ha) || IS_QLA25XX(ha) || IS_QLA81XX(ha)) {
1823 pdev->needs_freset = 1;
1824 pci_save_state(pdev);
1825 }
1826
1827 /* Configure PCI I/O space */
1828 ret = qla2x00_iospace_config(ha);
1829 if (ret)
1830 goto probe_hw_failed;
1831
1832 qla_printk(KERN_INFO, ha,
1833 "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1834 ha->iobase);
1835
1836 ha->prev_topology = 0;
1837 ha->init_cb_size = sizeof(init_cb_t);
1838 ha->link_data_rate = PORT_SPEED_UNKNOWN;
1839 ha->optrom_size = OPTROM_SIZE_2300;
1840
1841 /* Assign ISP specific operations. */
1842 max_id = MAX_TARGETS_2200;
1843 if (IS_QLA2100(ha)) {
1844 max_id = MAX_TARGETS_2100;
1845 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1846 req_length = REQUEST_ENTRY_CNT_2100;
1847 rsp_length = RESPONSE_ENTRY_CNT_2100;
1848 ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
1849 ha->gid_list_info_size = 4;
1850 ha->flash_conf_off = ~0;
1851 ha->flash_data_off = ~0;
1852 ha->nvram_conf_off = ~0;
1853 ha->nvram_data_off = ~0;
1854 ha->isp_ops = &qla2100_isp_ops;
1855 } else if (IS_QLA2200(ha)) {
1856 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1857 req_length = REQUEST_ENTRY_CNT_2200;
1858 rsp_length = RESPONSE_ENTRY_CNT_2100;
1859 ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
1860 ha->gid_list_info_size = 4;
1861 ha->flash_conf_off = ~0;
1862 ha->flash_data_off = ~0;
1863 ha->nvram_conf_off = ~0;
1864 ha->nvram_data_off = ~0;
1865 ha->isp_ops = &qla2100_isp_ops;
1866 } else if (IS_QLA23XX(ha)) {
1867 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1868 req_length = REQUEST_ENTRY_CNT_2200;
1869 rsp_length = RESPONSE_ENTRY_CNT_2300;
1870 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
1871 ha->gid_list_info_size = 6;
1872 if (IS_QLA2322(ha) || IS_QLA6322(ha))
1873 ha->optrom_size = OPTROM_SIZE_2322;
1874 ha->flash_conf_off = ~0;
1875 ha->flash_data_off = ~0;
1876 ha->nvram_conf_off = ~0;
1877 ha->nvram_data_off = ~0;
1878 ha->isp_ops = &qla2300_isp_ops;
1879 } else if (IS_QLA24XX_TYPE(ha)) {
1880 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1881 req_length = REQUEST_ENTRY_CNT_24XX;
1882 rsp_length = RESPONSE_ENTRY_CNT_2300;
1883 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
1884 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1885 ha->gid_list_info_size = 8;
1886 ha->optrom_size = OPTROM_SIZE_24XX;
1887 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA24XX;
1888 ha->isp_ops = &qla24xx_isp_ops;
1889 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
1890 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
1891 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
1892 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
1893 } else if (IS_QLA25XX(ha)) {
1894 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1895 req_length = REQUEST_ENTRY_CNT_24XX;
1896 rsp_length = RESPONSE_ENTRY_CNT_2300;
1897 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
1898 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1899 ha->gid_list_info_size = 8;
1900 ha->optrom_size = OPTROM_SIZE_25XX;
1901 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
1902 ha->isp_ops = &qla25xx_isp_ops;
1903 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
1904 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
1905 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
1906 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
1907 } else if (IS_QLA81XX(ha)) {
1908 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1909 req_length = REQUEST_ENTRY_CNT_24XX;
1910 rsp_length = RESPONSE_ENTRY_CNT_2300;
1911 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
1912 ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
1913 ha->gid_list_info_size = 8;
1914 ha->optrom_size = OPTROM_SIZE_81XX;
1915 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
1916 ha->isp_ops = &qla81xx_isp_ops;
1917 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_81XX;
1918 ha->flash_data_off = FARX_ACCESS_FLASH_DATA_81XX;
1919 ha->nvram_conf_off = ~0;
1920 ha->nvram_data_off = ~0;
1921 }
1922
1923 mutex_init(&ha->vport_lock);
1924 init_completion(&ha->mbx_cmd_comp);
1925 complete(&ha->mbx_cmd_comp);
1926 init_completion(&ha->mbx_intr_comp);
1927
1928 set_bit(0, (unsigned long *) ha->vp_idx_map);
1929
1930 qla2x00_config_dma_addressing(ha);
1931 ret = qla2x00_mem_alloc(ha, req_length, rsp_length, &req, &rsp);
1932 if (!ret) {
1933 qla_printk(KERN_WARNING, ha,
1934 "[ERROR] Failed to allocate memory for adapter\n");
1935
1936 goto probe_hw_failed;
1937 }
1938
1939 req->max_q_depth = MAX_Q_DEPTH;
1940 if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
1941 req->max_q_depth = ql2xmaxqdepth;
1942
1943
1944 base_vha = qla2x00_create_host(sht, ha);
1945 if (!base_vha) {
1946 qla_printk(KERN_WARNING, ha,
1947 "[ERROR] Failed to allocate memory for scsi_host\n");
1948
1949 ret = -ENOMEM;
1950 qla2x00_mem_free(ha);
1951 qla2x00_free_req_que(ha, req);
1952 qla2x00_free_rsp_que(ha, rsp);
1953 goto probe_hw_failed;
1954 }
1955
1956 pci_set_drvdata(pdev, base_vha);
1957
1958 host = base_vha->host;
1959 base_vha->req = req;
1960 host->can_queue = req->length + 128;
1961 if (IS_QLA2XXX_MIDTYPE(ha))
1962 base_vha->mgmt_svr_loop_id = 10 + base_vha->vp_idx;
1963 else
1964 base_vha->mgmt_svr_loop_id = MANAGEMENT_SERVER +
1965 base_vha->vp_idx;
1966 if (IS_QLA2100(ha))
1967 host->sg_tablesize = 32;
1968 host->max_id = max_id;
1969 host->this_id = 255;
1970 host->cmd_per_lun = 3;
1971 host->unique_id = host->host_no;
1972 host->max_cmd_len = MAX_CMDSZ;
1973 host->max_channel = MAX_BUSES - 1;
1974 host->max_lun = MAX_LUNS;
1975 host->transportt = qla2xxx_transport_template;
1976
1977 /* Set up the irqs */
1978 ret = qla2x00_request_irqs(ha, rsp);
1979 if (ret)
1980 goto probe_init_failed;
1981 /* Alloc arrays of request and response ring ptrs */
1982 que_init:
1983 if (!qla2x00_alloc_queues(ha)) {
1984 qla_printk(KERN_WARNING, ha,
1985 "[ERROR] Failed to allocate memory for queue"
1986 " pointers\n");
1987 goto probe_init_failed;
1988 }
1989 ha->rsp_q_map[0] = rsp;
1990 ha->req_q_map[0] = req;
1991 rsp->req = req;
1992 req->rsp = rsp;
1993 set_bit(0, ha->req_qid_map);
1994 set_bit(0, ha->rsp_qid_map);
1995 /* FWI2-capable only. */
1996 req->req_q_in = &ha->iobase->isp24.req_q_in;
1997 req->req_q_out = &ha->iobase->isp24.req_q_out;
1998 rsp->rsp_q_in = &ha->iobase->isp24.rsp_q_in;
1999 rsp->rsp_q_out = &ha->iobase->isp24.rsp_q_out;
2000 if (ha->mqenable) {
2001 req->req_q_in = &ha->mqiobase->isp25mq.req_q_in;
2002 req->req_q_out = &ha->mqiobase->isp25mq.req_q_out;
2003 rsp->rsp_q_in = &ha->mqiobase->isp25mq.rsp_q_in;
2004 rsp->rsp_q_out = &ha->mqiobase->isp25mq.rsp_q_out;
2005 }
2006
2007 if (qla2x00_initialize_adapter(base_vha)) {
2008 qla_printk(KERN_WARNING, ha,
2009 "Failed to initialize adapter\n");
2010
2011 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
2012 "Adapter flags %x.\n",
2013 base_vha->host_no, base_vha->device_flags));
2014
2015 ret = -ENODEV;
2016 goto probe_failed;
2017 }
2018
2019 if (ha->mqenable) {
2020 if (qla25xx_setup_mode(base_vha)) {
2021 qla_printk(KERN_WARNING, ha,
2022 "Can't create queues, falling back to single"
2023 " queue mode\n");
2024 goto que_init;
2025 }
2026 }
2027
2028 if (ha->flags.running_gold_fw)
2029 goto skip_dpc;
2030
2031 /*
2032 * Startup the kernel thread for this host adapter
2033 */
2034 ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
2035 "%s_dpc", base_vha->host_str);
2036 if (IS_ERR(ha->dpc_thread)) {
2037 qla_printk(KERN_WARNING, ha,
2038 "Unable to start DPC thread!\n");
2039 ret = PTR_ERR(ha->dpc_thread);
2040 goto probe_failed;
2041 }
2042
2043 skip_dpc:
2044 list_add_tail(&base_vha->list, &ha->vp_list);
2045 base_vha->host->irq = ha->pdev->irq;
2046
2047 /* Initialized the timer */
2048 qla2x00_start_timer(base_vha, qla2x00_timer, WATCH_INTERVAL);
2049
2050 DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
2051 base_vha->host_no, ha));
2052
2053 ret = scsi_add_host(host, &pdev->dev);
2054 if (ret)
2055 goto probe_failed;
2056
2057 base_vha->flags.init_done = 1;
2058 base_vha->flags.online = 1;
2059
2060 ha->isp_ops->enable_intrs(ha);
2061
2062 scsi_scan_host(host);
2063
2064 qla2x00_alloc_sysfs_attr(base_vha);
2065
2066 qla2x00_init_host_attr(base_vha);
2067
2068 qla2x00_dfs_setup(base_vha);
2069
2070 qla_printk(KERN_INFO, ha, "\n"
2071 " QLogic Fibre Channel HBA Driver: %s\n"
2072 " QLogic %s - %s\n"
2073 " ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
2074 qla2x00_version_str, ha->model_number,
2075 ha->model_desc ? ha->model_desc : "", pdev->device,
2076 ha->isp_ops->pci_info_str(base_vha, pci_info), pci_name(pdev),
2077 ha->flags.enable_64bit_addressing ? '+' : '-', base_vha->host_no,
2078 ha->isp_ops->fw_version_str(base_vha, fw_str));
2079
2080 return 0;
2081
2082 probe_init_failed:
2083 qla2x00_free_req_que(ha, req);
2084 qla2x00_free_rsp_que(ha, rsp);
2085 ha->max_req_queues = ha->max_rsp_queues = 0;
2086
2087 probe_failed:
2088 if (base_vha->timer_active)
2089 qla2x00_stop_timer(base_vha);
2090 base_vha->flags.online = 0;
2091 if (ha->dpc_thread) {
2092 struct task_struct *t = ha->dpc_thread;
2093
2094 ha->dpc_thread = NULL;
2095 kthread_stop(t);
2096 }
2097
2098 qla2x00_free_device(base_vha);
2099
2100 scsi_host_put(base_vha->host);
2101
2102 probe_hw_failed:
2103 if (ha->iobase)
2104 iounmap(ha->iobase);
2105
2106 pci_release_selected_regions(ha->pdev, ha->bars);
2107 kfree(ha);
2108 ha = NULL;
2109
2110 probe_out:
2111 pci_disable_device(pdev);
2112 return ret;
2113 }
2114
2115 static void
2116 qla2x00_remove_one(struct pci_dev *pdev)
2117 {
2118 scsi_qla_host_t *base_vha, *vha, *temp;
2119 struct qla_hw_data *ha;
2120
2121 base_vha = pci_get_drvdata(pdev);
2122 ha = base_vha->hw;
2123
2124 list_for_each_entry_safe(vha, temp, &ha->vp_list, list) {
2125 if (vha && vha->fc_vport)
2126 fc_vport_terminate(vha->fc_vport);
2127 }
2128
2129 set_bit(UNLOADING, &base_vha->dpc_flags);
2130
2131 qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
2132
2133 qla2x00_dfs_remove(base_vha);
2134
2135 qla84xx_put_chip(base_vha);
2136
2137 /* Disable timer */
2138 if (base_vha->timer_active)
2139 qla2x00_stop_timer(base_vha);
2140
2141 base_vha->flags.online = 0;
2142
2143 /* Flush the work queue and remove it */
2144 if (ha->wq) {
2145 flush_workqueue(ha->wq);
2146 destroy_workqueue(ha->wq);
2147 ha->wq = NULL;
2148 }
2149
2150 /* Kill the kernel thread for this host */
2151 if (ha->dpc_thread) {
2152 struct task_struct *t = ha->dpc_thread;
2153
2154 /*
2155 * qla2xxx_wake_dpc checks for ->dpc_thread
2156 * so we need to zero it out.
2157 */
2158 ha->dpc_thread = NULL;
2159 kthread_stop(t);
2160 }
2161
2162 qla2x00_free_sysfs_attr(base_vha);
2163
2164 fc_remove_host(base_vha->host);
2165
2166 scsi_remove_host(base_vha->host);
2167
2168 qla2x00_free_device(base_vha);
2169
2170 scsi_host_put(base_vha->host);
2171
2172 if (ha->iobase)
2173 iounmap(ha->iobase);
2174
2175 if (ha->mqiobase)
2176 iounmap(ha->mqiobase);
2177
2178 pci_release_selected_regions(ha->pdev, ha->bars);
2179 kfree(ha);
2180 ha = NULL;
2181
2182 pci_disable_device(pdev);
2183 pci_set_drvdata(pdev, NULL);
2184 }
2185
2186 static void
2187 qla2x00_free_device(scsi_qla_host_t *vha)
2188 {
2189 struct qla_hw_data *ha = vha->hw;
2190
2191 qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
2192
2193 /* Disable timer */
2194 if (vha->timer_active)
2195 qla2x00_stop_timer(vha);
2196
2197 /* Kill the kernel thread for this host */
2198 if (ha->dpc_thread) {
2199 struct task_struct *t = ha->dpc_thread;
2200
2201 /*
2202 * qla2xxx_wake_dpc checks for ->dpc_thread
2203 * so we need to zero it out.
2204 */
2205 ha->dpc_thread = NULL;
2206 kthread_stop(t);
2207 }
2208
2209 qla25xx_delete_queues(vha);
2210
2211 if (ha->flags.fce_enabled)
2212 qla2x00_disable_fce_trace(vha, NULL, NULL);
2213
2214 if (ha->eft)
2215 qla2x00_disable_eft_trace(vha);
2216
2217 /* Stop currently executing firmware. */
2218 qla2x00_try_to_stop_firmware(vha);
2219
2220 vha->flags.online = 0;
2221
2222 /* turn-off interrupts on the card */
2223 if (ha->interrupts_on)
2224 ha->isp_ops->disable_intrs(ha);
2225
2226 qla2x00_free_irqs(vha);
2227
2228 qla2x00_mem_free(ha);
2229
2230 qla2x00_free_queues(ha);
2231 }
2232
2233 static inline void
2234 qla2x00_schedule_rport_del(struct scsi_qla_host *vha, fc_port_t *fcport,
2235 int defer)
2236 {
2237 struct fc_rport *rport;
2238 scsi_qla_host_t *base_vha;
2239
2240 if (!fcport->rport)
2241 return;
2242
2243 rport = fcport->rport;
2244 if (defer) {
2245 base_vha = pci_get_drvdata(vha->hw->pdev);
2246 spin_lock_irq(vha->host->host_lock);
2247 fcport->drport = rport;
2248 spin_unlock_irq(vha->host->host_lock);
2249 set_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
2250 qla2xxx_wake_dpc(base_vha);
2251 } else
2252 fc_remote_port_delete(rport);
2253 }
2254
2255 /*
2256 * qla2x00_mark_device_lost Updates fcport state when device goes offline.
2257 *
2258 * Input: ha = adapter block pointer. fcport = port structure pointer.
2259 *
2260 * Return: None.
2261 *
2262 * Context:
2263 */
2264 void qla2x00_mark_device_lost(scsi_qla_host_t *vha, fc_port_t *fcport,
2265 int do_login, int defer)
2266 {
2267 if (atomic_read(&fcport->state) == FCS_ONLINE &&
2268 vha->vp_idx == fcport->vp_idx) {
2269 atomic_set(&fcport->state, FCS_DEVICE_LOST);
2270 qla2x00_schedule_rport_del(vha, fcport, defer);
2271 }
2272 /*
2273 * We may need to retry the login, so don't change the state of the
2274 * port but do the retries.
2275 */
2276 if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
2277 atomic_set(&fcport->state, FCS_DEVICE_LOST);
2278
2279 if (!do_login)
2280 return;
2281
2282 if (fcport->login_retry == 0) {
2283 fcport->login_retry = vha->hw->login_retry_count;
2284 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
2285
2286 DEBUG(printk("scsi(%ld): Port login retry: "
2287 "%02x%02x%02x%02x%02x%02x%02x%02x, "
2288 "id = 0x%04x retry cnt=%d\n",
2289 vha->host_no,
2290 fcport->port_name[0],
2291 fcport->port_name[1],
2292 fcport->port_name[2],
2293 fcport->port_name[3],
2294 fcport->port_name[4],
2295 fcport->port_name[5],
2296 fcport->port_name[6],
2297 fcport->port_name[7],
2298 fcport->loop_id,
2299 fcport->login_retry));
2300 }
2301 }
2302
2303 /*
2304 * qla2x00_mark_all_devices_lost
2305 * Updates fcport state when device goes offline.
2306 *
2307 * Input:
2308 * ha = adapter block pointer.
2309 * fcport = port structure pointer.
2310 *
2311 * Return:
2312 * None.
2313 *
2314 * Context:
2315 */
2316 void
2317 qla2x00_mark_all_devices_lost(scsi_qla_host_t *vha, int defer)
2318 {
2319 fc_port_t *fcport;
2320
2321 list_for_each_entry(fcport, &vha->vp_fcports, list) {
2322 if (vha->vp_idx != 0 && vha->vp_idx != fcport->vp_idx)
2323 continue;
2324
2325 /*
2326 * No point in marking the device as lost, if the device is
2327 * already DEAD.
2328 */
2329 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
2330 continue;
2331 if (atomic_read(&fcport->state) == FCS_ONLINE) {
2332 if (defer)
2333 qla2x00_schedule_rport_del(vha, fcport, defer);
2334 else if (vha->vp_idx == fcport->vp_idx)
2335 qla2x00_schedule_rport_del(vha, fcport, defer);
2336 }
2337 atomic_set(&fcport->state, FCS_DEVICE_LOST);
2338 }
2339 }
2340
2341 /*
2342 * qla2x00_mem_alloc
2343 * Allocates adapter memory.
2344 *
2345 * Returns:
2346 * 0 = success.
2347 * !0 = failure.
2348 */
2349 static int
2350 qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len,
2351 struct req_que **req, struct rsp_que **rsp)
2352 {
2353 char name[16];
2354
2355 ha->init_cb = dma_alloc_coherent(&ha->pdev->dev, ha->init_cb_size,
2356 &ha->init_cb_dma, GFP_KERNEL);
2357 if (!ha->init_cb)
2358 goto fail;
2359
2360 ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
2361 &ha->gid_list_dma, GFP_KERNEL);
2362 if (!ha->gid_list)
2363 goto fail_free_init_cb;
2364
2365 ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
2366 if (!ha->srb_mempool)
2367 goto fail_free_gid_list;
2368
2369 /* Get memory for cached NVRAM */
2370 ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
2371 if (!ha->nvram)
2372 goto fail_free_srb_mempool;
2373
2374 snprintf(name, sizeof(name), "%s_%d", QLA2XXX_DRIVER_NAME,
2375 ha->pdev->device);
2376 ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2377 DMA_POOL_SIZE, 8, 0);
2378 if (!ha->s_dma_pool)
2379 goto fail_free_nvram;
2380
2381 /* Allocate memory for SNS commands */
2382 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
2383 /* Get consistent memory allocated for SNS commands */
2384 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
2385 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, GFP_KERNEL);
2386 if (!ha->sns_cmd)
2387 goto fail_dma_pool;
2388 } else {
2389 /* Get consistent memory allocated for MS IOCB */
2390 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2391 &ha->ms_iocb_dma);
2392 if (!ha->ms_iocb)
2393 goto fail_dma_pool;
2394 /* Get consistent memory allocated for CT SNS commands */
2395 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
2396 sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, GFP_KERNEL);
2397 if (!ha->ct_sns)
2398 goto fail_free_ms_iocb;
2399 }
2400
2401 /* Allocate memory for request ring */
2402 *req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
2403 if (!*req) {
2404 DEBUG(printk("Unable to allocate memory for req\n"));
2405 goto fail_req;
2406 }
2407 (*req)->length = req_len;
2408 (*req)->ring = dma_alloc_coherent(&ha->pdev->dev,
2409 ((*req)->length + 1) * sizeof(request_t),
2410 &(*req)->dma, GFP_KERNEL);
2411 if (!(*req)->ring) {
2412 DEBUG(printk("Unable to allocate memory for req_ring\n"));
2413 goto fail_req_ring;
2414 }
2415 /* Allocate memory for response ring */
2416 *rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
2417 if (!*rsp) {
2418 qla_printk(KERN_WARNING, ha,
2419 "Unable to allocate memory for rsp\n");
2420 goto fail_rsp;
2421 }
2422 (*rsp)->hw = ha;
2423 (*rsp)->length = rsp_len;
2424 (*rsp)->ring = dma_alloc_coherent(&ha->pdev->dev,
2425 ((*rsp)->length + 1) * sizeof(response_t),
2426 &(*rsp)->dma, GFP_KERNEL);
2427 if (!(*rsp)->ring) {
2428 qla_printk(KERN_WARNING, ha,
2429 "Unable to allocate memory for rsp_ring\n");
2430 goto fail_rsp_ring;
2431 }
2432 (*req)->rsp = *rsp;
2433 (*rsp)->req = *req;
2434 /* Allocate memory for NVRAM data for vports */
2435 if (ha->nvram_npiv_size) {
2436 ha->npiv_info = kzalloc(sizeof(struct qla_npiv_entry) *
2437 ha->nvram_npiv_size, GFP_KERNEL);
2438 if (!ha->npiv_info) {
2439 qla_printk(KERN_WARNING, ha,
2440 "Unable to allocate memory for npiv info\n");
2441 goto fail_npiv_info;
2442 }
2443 } else
2444 ha->npiv_info = NULL;
2445
2446 /* Get consistent memory allocated for EX-INIT-CB. */
2447 if (IS_QLA81XX(ha)) {
2448 ha->ex_init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2449 &ha->ex_init_cb_dma);
2450 if (!ha->ex_init_cb)
2451 goto fail_ex_init_cb;
2452 }
2453
2454 INIT_LIST_HEAD(&ha->vp_list);
2455 return 1;
2456
2457 fail_ex_init_cb:
2458 kfree(ha->npiv_info);
2459 fail_npiv_info:
2460 dma_free_coherent(&ha->pdev->dev, ((*rsp)->length + 1) *
2461 sizeof(response_t), (*rsp)->ring, (*rsp)->dma);
2462 (*rsp)->ring = NULL;
2463 (*rsp)->dma = 0;
2464 fail_rsp_ring:
2465 kfree(*rsp);
2466 fail_rsp:
2467 dma_free_coherent(&ha->pdev->dev, ((*req)->length + 1) *
2468 sizeof(request_t), (*req)->ring, (*req)->dma);
2469 (*req)->ring = NULL;
2470 (*req)->dma = 0;
2471 fail_req_ring:
2472 kfree(*req);
2473 fail_req:
2474 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2475 ha->ct_sns, ha->ct_sns_dma);
2476 ha->ct_sns = NULL;
2477 ha->ct_sns_dma = 0;
2478 fail_free_ms_iocb:
2479 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2480 ha->ms_iocb = NULL;
2481 ha->ms_iocb_dma = 0;
2482 fail_dma_pool:
2483 dma_pool_destroy(ha->s_dma_pool);
2484 ha->s_dma_pool = NULL;
2485 fail_free_nvram:
2486 kfree(ha->nvram);
2487 ha->nvram = NULL;
2488 fail_free_srb_mempool:
2489 mempool_destroy(ha->srb_mempool);
2490 ha->srb_mempool = NULL;
2491 fail_free_gid_list:
2492 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2493 ha->gid_list_dma);
2494 ha->gid_list = NULL;
2495 ha->gid_list_dma = 0;
2496 fail_free_init_cb:
2497 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb,
2498 ha->init_cb_dma);
2499 ha->init_cb = NULL;
2500 ha->init_cb_dma = 0;
2501 fail:
2502 DEBUG(printk("%s: Memory allocation failure\n", __func__));
2503 return -ENOMEM;
2504 }
2505
2506 /*
2507 * qla2x00_mem_free
2508 * Frees all adapter allocated memory.
2509 *
2510 * Input:
2511 * ha = adapter block pointer.
2512 */
2513 static void
2514 qla2x00_mem_free(struct qla_hw_data *ha)
2515 {
2516 if (ha->srb_mempool)
2517 mempool_destroy(ha->srb_mempool);
2518
2519 if (ha->fce)
2520 dma_free_coherent(&ha->pdev->dev, FCE_SIZE, ha->fce,
2521 ha->fce_dma);
2522
2523 if (ha->fw_dump) {
2524 if (ha->eft)
2525 dma_free_coherent(&ha->pdev->dev,
2526 ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2527 vfree(ha->fw_dump);
2528 }
2529
2530 if (ha->dcbx_tlv)
2531 dma_free_coherent(&ha->pdev->dev, DCBX_TLV_DATA_SIZE,
2532 ha->dcbx_tlv, ha->dcbx_tlv_dma);
2533
2534 if (ha->xgmac_data)
2535 dma_free_coherent(&ha->pdev->dev, XGMAC_DATA_SIZE,
2536 ha->xgmac_data, ha->xgmac_data_dma);
2537
2538 if (ha->sns_cmd)
2539 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2540 ha->sns_cmd, ha->sns_cmd_dma);
2541
2542 if (ha->ct_sns)
2543 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2544 ha->ct_sns, ha->ct_sns_dma);
2545
2546 if (ha->sfp_data)
2547 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
2548
2549 if (ha->edc_data)
2550 dma_pool_free(ha->s_dma_pool, ha->edc_data, ha->edc_data_dma);
2551
2552 if (ha->ms_iocb)
2553 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2554
2555 if (ha->ex_init_cb)
2556 dma_pool_free(ha->s_dma_pool, ha->ex_init_cb, ha->ex_init_cb_dma);
2557
2558 if (ha->s_dma_pool)
2559 dma_pool_destroy(ha->s_dma_pool);
2560
2561 if (ha->gid_list)
2562 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2563 ha->gid_list_dma);
2564
2565 if (ha->init_cb)
2566 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
2567 ha->init_cb, ha->init_cb_dma);
2568 vfree(ha->optrom_buffer);
2569 kfree(ha->nvram);
2570 kfree(ha->npiv_info);
2571
2572 ha->srb_mempool = NULL;
2573 ha->eft = NULL;
2574 ha->eft_dma = 0;
2575 ha->sns_cmd = NULL;
2576 ha->sns_cmd_dma = 0;
2577 ha->ct_sns = NULL;
2578 ha->ct_sns_dma = 0;
2579 ha->ms_iocb = NULL;
2580 ha->ms_iocb_dma = 0;
2581 ha->init_cb = NULL;
2582 ha->init_cb_dma = 0;
2583 ha->ex_init_cb = NULL;
2584 ha->ex_init_cb_dma = 0;
2585
2586 ha->s_dma_pool = NULL;
2587
2588 ha->gid_list = NULL;
2589 ha->gid_list_dma = 0;
2590
2591 ha->fw_dump = NULL;
2592 ha->fw_dumped = 0;
2593 ha->fw_dump_reading = 0;
2594 }
2595
2596 struct scsi_qla_host *qla2x00_create_host(struct scsi_host_template *sht,
2597 struct qla_hw_data *ha)
2598 {
2599 struct Scsi_Host *host;
2600 struct scsi_qla_host *vha = NULL;
2601
2602 host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
2603 if (host == NULL) {
2604 printk(KERN_WARNING
2605 "qla2xxx: Couldn't allocate host from scsi layer!\n");
2606 goto fail;
2607 }
2608
2609 /* Clear our data area */
2610 vha = shost_priv(host);
2611 memset(vha, 0, sizeof(scsi_qla_host_t));
2612
2613 vha->host = host;
2614 vha->host_no = host->host_no;
2615 vha->hw = ha;
2616
2617 INIT_LIST_HEAD(&vha->vp_fcports);
2618 INIT_LIST_HEAD(&vha->work_list);
2619 INIT_LIST_HEAD(&vha->list);
2620
2621 spin_lock_init(&vha->work_lock);
2622
2623 sprintf(vha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, vha->host_no);
2624 return vha;
2625
2626 fail:
2627 return vha;
2628 }
2629
2630 static struct qla_work_evt *
2631 qla2x00_alloc_work(struct scsi_qla_host *vha, enum qla_work_type type)
2632 {
2633 struct qla_work_evt *e;
2634
2635 e = kzalloc(sizeof(struct qla_work_evt), GFP_ATOMIC);
2636 if (!e)
2637 return NULL;
2638
2639 INIT_LIST_HEAD(&e->list);
2640 e->type = type;
2641 e->flags = QLA_EVT_FLAG_FREE;
2642 return e;
2643 }
2644
2645 static int
2646 qla2x00_post_work(struct scsi_qla_host *vha, struct qla_work_evt *e)
2647 {
2648 unsigned long flags;
2649
2650 spin_lock_irqsave(&vha->work_lock, flags);
2651 list_add_tail(&e->list, &vha->work_list);
2652 spin_unlock_irqrestore(&vha->work_lock, flags);
2653 qla2xxx_wake_dpc(vha);
2654
2655 return QLA_SUCCESS;
2656 }
2657
2658 int
2659 qla2x00_post_aen_work(struct scsi_qla_host *vha, enum fc_host_event_code code,
2660 u32 data)
2661 {
2662 struct qla_work_evt *e;
2663
2664 e = qla2x00_alloc_work(vha, QLA_EVT_AEN);
2665 if (!e)
2666 return QLA_FUNCTION_FAILED;
2667
2668 e->u.aen.code = code;
2669 e->u.aen.data = data;
2670 return qla2x00_post_work(vha, e);
2671 }
2672
2673 int
2674 qla2x00_post_idc_ack_work(struct scsi_qla_host *vha, uint16_t *mb)
2675 {
2676 struct qla_work_evt *e;
2677
2678 e = qla2x00_alloc_work(vha, QLA_EVT_IDC_ACK);
2679 if (!e)
2680 return QLA_FUNCTION_FAILED;
2681
2682 memcpy(e->u.idc_ack.mb, mb, QLA_IDC_ACK_REGS * sizeof(uint16_t));
2683 return qla2x00_post_work(vha, e);
2684 }
2685
2686 #define qla2x00_post_async_work(name, type) \
2687 int qla2x00_post_async_##name##_work( \
2688 struct scsi_qla_host *vha, \
2689 fc_port_t *fcport, uint16_t *data) \
2690 { \
2691 struct qla_work_evt *e; \
2692 \
2693 e = qla2x00_alloc_work(vha, type); \
2694 if (!e) \
2695 return QLA_FUNCTION_FAILED; \
2696 \
2697 e->u.logio.fcport = fcport; \
2698 if (data) { \
2699 e->u.logio.data[0] = data[0]; \
2700 e->u.logio.data[1] = data[1]; \
2701 } \
2702 return qla2x00_post_work(vha, e); \
2703 }
2704
2705 qla2x00_post_async_work(login, QLA_EVT_ASYNC_LOGIN);
2706 qla2x00_post_async_work(login_done, QLA_EVT_ASYNC_LOGIN_DONE);
2707 qla2x00_post_async_work(logout, QLA_EVT_ASYNC_LOGOUT);
2708 qla2x00_post_async_work(logout_done, QLA_EVT_ASYNC_LOGOUT_DONE);
2709
2710 int
2711 qla2x00_post_uevent_work(struct scsi_qla_host *vha, u32 code)
2712 {
2713 struct qla_work_evt *e;
2714
2715 e = qla2x00_alloc_work(vha, QLA_EVT_UEVENT);
2716 if (!e)
2717 return QLA_FUNCTION_FAILED;
2718
2719 e->u.uevent.code = code;
2720 return qla2x00_post_work(vha, e);
2721 }
2722
2723 static void
2724 qla2x00_uevent_emit(struct scsi_qla_host *vha, u32 code)
2725 {
2726 char event_string[40];
2727 char *envp[] = { event_string, NULL };
2728
2729 switch (code) {
2730 case QLA_UEVENT_CODE_FW_DUMP:
2731 snprintf(event_string, sizeof(event_string), "FW_DUMP=%ld",
2732 vha->host_no);
2733 break;
2734 default:
2735 /* do nothing */
2736 break;
2737 }
2738 kobject_uevent_env(&vha->hw->pdev->dev.kobj, KOBJ_CHANGE, envp);
2739 }
2740
2741 void
2742 qla2x00_do_work(struct scsi_qla_host *vha)
2743 {
2744 struct qla_work_evt *e, *tmp;
2745 unsigned long flags;
2746 LIST_HEAD(work);
2747
2748 spin_lock_irqsave(&vha->work_lock, flags);
2749 list_splice_init(&vha->work_list, &work);
2750 spin_unlock_irqrestore(&vha->work_lock, flags);
2751
2752 list_for_each_entry_safe(e, tmp, &work, list) {
2753 list_del_init(&e->list);
2754
2755 switch (e->type) {
2756 case QLA_EVT_AEN:
2757 fc_host_post_event(vha->host, fc_get_event_number(),
2758 e->u.aen.code, e->u.aen.data);
2759 break;
2760 case QLA_EVT_IDC_ACK:
2761 qla81xx_idc_ack(vha, e->u.idc_ack.mb);
2762 break;
2763 case QLA_EVT_ASYNC_LOGIN:
2764 qla2x00_async_login(vha, e->u.logio.fcport,
2765 e->u.logio.data);
2766 break;
2767 case QLA_EVT_ASYNC_LOGIN_DONE:
2768 qla2x00_async_login_done(vha, e->u.logio.fcport,
2769 e->u.logio.data);
2770 break;
2771 case QLA_EVT_ASYNC_LOGOUT:
2772 qla2x00_async_logout(vha, e->u.logio.fcport);
2773 break;
2774 case QLA_EVT_ASYNC_LOGOUT_DONE:
2775 qla2x00_async_logout_done(vha, e->u.logio.fcport,
2776 e->u.logio.data);
2777 break;
2778 case QLA_EVT_UEVENT:
2779 qla2x00_uevent_emit(vha, e->u.uevent.code);
2780 break;
2781 }
2782 if (e->flags & QLA_EVT_FLAG_FREE)
2783 kfree(e);
2784 }
2785 }
2786
2787 /* Relogins all the fcports of a vport
2788 * Context: dpc thread
2789 */
2790 void qla2x00_relogin(struct scsi_qla_host *vha)
2791 {
2792 fc_port_t *fcport;
2793 int status;
2794 uint16_t next_loopid = 0;
2795 struct qla_hw_data *ha = vha->hw;
2796 uint16_t data[2];
2797
2798 list_for_each_entry(fcport, &vha->vp_fcports, list) {
2799 /*
2800 * If the port is not ONLINE then try to login
2801 * to it if we haven't run out of retries.
2802 */
2803 if (atomic_read(&fcport->state) !=
2804 FCS_ONLINE && fcport->login_retry) {
2805
2806 fcport->login_retry--;
2807 if (fcport->flags & FCF_FABRIC_DEVICE) {
2808 if (fcport->flags & FCF_TAPE_PRESENT)
2809 ha->isp_ops->fabric_logout(vha,
2810 fcport->loop_id,
2811 fcport->d_id.b.domain,
2812 fcport->d_id.b.area,
2813 fcport->d_id.b.al_pa);
2814
2815 if (IS_ALOGIO_CAPABLE(ha)) {
2816 data[0] = 0;
2817 data[1] = QLA_LOGIO_LOGIN_RETRIED;
2818 status = qla2x00_post_async_login_work(
2819 vha, fcport, data);
2820 if (status == QLA_SUCCESS)
2821 continue;
2822 /* Attempt a retry. */
2823 status = 1;
2824 } else
2825 status = qla2x00_fabric_login(vha,
2826 fcport, &next_loopid);
2827 } else
2828 status = qla2x00_local_device_login(vha,
2829 fcport);
2830
2831 if (status == QLA_SUCCESS) {
2832 fcport->old_loop_id = fcport->loop_id;
2833
2834 DEBUG(printk("scsi(%ld): port login OK: logged "
2835 "in ID 0x%x\n", vha->host_no, fcport->loop_id));
2836
2837 qla2x00_update_fcport(vha, fcport);
2838
2839 } else if (status == 1) {
2840 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
2841 /* retry the login again */
2842 DEBUG(printk("scsi(%ld): Retrying"
2843 " %d login again loop_id 0x%x\n",
2844 vha->host_no, fcport->login_retry,
2845 fcport->loop_id));
2846 } else {
2847 fcport->login_retry = 0;
2848 }
2849
2850 if (fcport->login_retry == 0 && status != QLA_SUCCESS)
2851 fcport->loop_id = FC_NO_LOOP_ID;
2852 }
2853 if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
2854 break;
2855 }
2856 }
2857
2858 /**************************************************************************
2859 * qla2x00_do_dpc
2860 * This kernel thread is a task that is schedule by the interrupt handler
2861 * to perform the background processing for interrupts.
2862 *
2863 * Notes:
2864 * This task always run in the context of a kernel thread. It
2865 * is kick-off by the driver's detect code and starts up
2866 * up one per adapter. It immediately goes to sleep and waits for
2867 * some fibre event. When either the interrupt handler or
2868 * the timer routine detects a event it will one of the task
2869 * bits then wake us up.
2870 **************************************************************************/
2871 static int
2872 qla2x00_do_dpc(void *data)
2873 {
2874 int rval;
2875 scsi_qla_host_t *base_vha;
2876 struct qla_hw_data *ha;
2877
2878 ha = (struct qla_hw_data *)data;
2879 base_vha = pci_get_drvdata(ha->pdev);
2880
2881 set_user_nice(current, -20);
2882
2883 while (!kthread_should_stop()) {
2884 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2885
2886 set_current_state(TASK_INTERRUPTIBLE);
2887 schedule();
2888 __set_current_state(TASK_RUNNING);
2889
2890 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2891
2892 /* Initialization not yet finished. Don't do anything yet. */
2893 if (!base_vha->flags.init_done)
2894 continue;
2895
2896 if (ha->flags.eeh_busy) {
2897 DEBUG17(qla_printk(KERN_WARNING, ha,
2898 "qla2x00_do_dpc: dpc_flags: %lx\n",
2899 base_vha->dpc_flags));
2900 continue;
2901 }
2902
2903 DEBUG3(printk("scsi(%ld): DPC handler\n", base_vha->host_no));
2904
2905 ha->dpc_active = 1;
2906
2907 if (ha->flags.mbox_busy) {
2908 ha->dpc_active = 0;
2909 continue;
2910 }
2911
2912 qla2x00_do_work(base_vha);
2913
2914 if (test_and_clear_bit(ISP_ABORT_NEEDED,
2915 &base_vha->dpc_flags)) {
2916
2917 DEBUG(printk("scsi(%ld): dpc: sched "
2918 "qla2x00_abort_isp ha = %p\n",
2919 base_vha->host_no, ha));
2920 if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2921 &base_vha->dpc_flags))) {
2922
2923 if (qla2x00_abort_isp(base_vha)) {
2924 /* failed. retry later */
2925 set_bit(ISP_ABORT_NEEDED,
2926 &base_vha->dpc_flags);
2927 }
2928 clear_bit(ABORT_ISP_ACTIVE,
2929 &base_vha->dpc_flags);
2930 }
2931
2932 DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2933 base_vha->host_no));
2934 }
2935
2936 if (test_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags)) {
2937 qla2x00_update_fcports(base_vha);
2938 clear_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
2939 }
2940
2941 if (test_and_clear_bit(RESET_MARKER_NEEDED,
2942 &base_vha->dpc_flags) &&
2943 (!(test_and_set_bit(RESET_ACTIVE, &base_vha->dpc_flags)))) {
2944
2945 DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2946 base_vha->host_no));
2947
2948 qla2x00_rst_aen(base_vha);
2949 clear_bit(RESET_ACTIVE, &base_vha->dpc_flags);
2950 }
2951
2952 /* Retry each device up to login retry count */
2953 if ((test_and_clear_bit(RELOGIN_NEEDED,
2954 &base_vha->dpc_flags)) &&
2955 !test_bit(LOOP_RESYNC_NEEDED, &base_vha->dpc_flags) &&
2956 atomic_read(&base_vha->loop_state) != LOOP_DOWN) {
2957
2958 DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2959 base_vha->host_no));
2960 qla2x00_relogin(base_vha);
2961
2962 DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2963 base_vha->host_no));
2964 }
2965
2966 if (test_and_clear_bit(LOOP_RESYNC_NEEDED,
2967 &base_vha->dpc_flags)) {
2968
2969 DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2970 base_vha->host_no));
2971
2972 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2973 &base_vha->dpc_flags))) {
2974
2975 rval = qla2x00_loop_resync(base_vha);
2976
2977 clear_bit(LOOP_RESYNC_ACTIVE,
2978 &base_vha->dpc_flags);
2979 }
2980
2981 DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2982 base_vha->host_no));
2983 }
2984
2985 if (test_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags) &&
2986 atomic_read(&base_vha->loop_state) == LOOP_READY) {
2987 clear_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags);
2988 qla2xxx_flash_npiv_conf(base_vha);
2989 }
2990
2991 if (!ha->interrupts_on)
2992 ha->isp_ops->enable_intrs(ha);
2993
2994 if (test_and_clear_bit(BEACON_BLINK_NEEDED,
2995 &base_vha->dpc_flags))
2996 ha->isp_ops->beacon_blink(base_vha);
2997
2998 qla2x00_do_dpc_all_vps(base_vha);
2999
3000 ha->dpc_active = 0;
3001 } /* End of while(1) */
3002
3003 DEBUG(printk("scsi(%ld): DPC handler exiting\n", base_vha->host_no));
3004
3005 /*
3006 * Make sure that nobody tries to wake us up again.
3007 */
3008 ha->dpc_active = 0;
3009
3010 /* Cleanup any residual CTX SRBs. */
3011 qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
3012
3013 return 0;
3014 }
3015
3016 void
3017 qla2xxx_wake_dpc(struct scsi_qla_host *vha)
3018 {
3019 struct qla_hw_data *ha = vha->hw;
3020 struct task_struct *t = ha->dpc_thread;
3021
3022 if (!test_bit(UNLOADING, &vha->dpc_flags) && t)
3023 wake_up_process(t);
3024 }
3025
3026 /*
3027 * qla2x00_rst_aen
3028 * Processes asynchronous reset.
3029 *
3030 * Input:
3031 * ha = adapter block pointer.
3032 */
3033 static void
3034 qla2x00_rst_aen(scsi_qla_host_t *vha)
3035 {
3036 if (vha->flags.online && !vha->flags.reset_active &&
3037 !atomic_read(&vha->loop_down_timer) &&
3038 !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))) {
3039 do {
3040 clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
3041
3042 /*
3043 * Issue marker command only when we are going to start
3044 * the I/O.
3045 */
3046 vha->marker_needed = 1;
3047 } while (!atomic_read(&vha->loop_down_timer) &&
3048 (test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags)));
3049 }
3050 }
3051
3052 static void
3053 qla2x00_sp_free_dma(srb_t *sp)
3054 {
3055 struct scsi_cmnd *cmd = sp->cmd;
3056
3057 if (sp->flags & SRB_DMA_VALID) {
3058 scsi_dma_unmap(cmd);
3059 sp->flags &= ~SRB_DMA_VALID;
3060 }
3061 CMD_SP(cmd) = NULL;
3062 }
3063
3064 void
3065 qla2x00_sp_compl(struct qla_hw_data *ha, srb_t *sp)
3066 {
3067 struct scsi_cmnd *cmd = sp->cmd;
3068
3069 qla2x00_sp_free_dma(sp);
3070
3071 mempool_free(sp, ha->srb_mempool);
3072
3073 cmd->scsi_done(cmd);
3074 }
3075
3076 /**************************************************************************
3077 * qla2x00_timer
3078 *
3079 * Description:
3080 * One second timer
3081 *
3082 * Context: Interrupt
3083 ***************************************************************************/
3084 void
3085 qla2x00_timer(scsi_qla_host_t *vha)
3086 {
3087 unsigned long cpu_flags = 0;
3088 fc_port_t *fcport;
3089 int start_dpc = 0;
3090 int index;
3091 srb_t *sp;
3092 int t;
3093 uint16_t w;
3094 struct qla_hw_data *ha = vha->hw;
3095 struct req_que *req;
3096
3097 /* Hardware read to raise pending EEH errors during mailbox waits. */
3098 if (!pci_channel_offline(ha->pdev))
3099 pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
3100 /*
3101 * Ports - Port down timer.
3102 *
3103 * Whenever, a port is in the LOST state we start decrementing its port
3104 * down timer every second until it reaches zero. Once it reaches zero
3105 * the port it marked DEAD.
3106 */
3107 t = 0;
3108 list_for_each_entry(fcport, &vha->vp_fcports, list) {
3109 if (fcport->port_type != FCT_TARGET)
3110 continue;
3111
3112 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
3113
3114 if (atomic_read(&fcport->port_down_timer) == 0)
3115 continue;
3116
3117 if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
3118 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
3119
3120 DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
3121 "%d remaining\n",
3122 vha->host_no,
3123 t, atomic_read(&fcport->port_down_timer)));
3124 }
3125 t++;
3126 } /* End of for fcport */
3127
3128
3129 /* Loop down handler. */
3130 if (atomic_read(&vha->loop_down_timer) > 0 &&
3131 !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
3132 && vha->flags.online) {
3133
3134 if (atomic_read(&vha->loop_down_timer) ==
3135 vha->loop_down_abort_time) {
3136
3137 DEBUG(printk("scsi(%ld): Loop Down - aborting the "
3138 "queues before time expire\n",
3139 vha->host_no));
3140
3141 if (!IS_QLA2100(ha) && vha->link_down_timeout)
3142 atomic_set(&vha->loop_state, LOOP_DEAD);
3143
3144 /* Schedule an ISP abort to return any tape commands. */
3145 /* NPIV - scan physical port only */
3146 if (!vha->vp_idx) {
3147 spin_lock_irqsave(&ha->hardware_lock,
3148 cpu_flags);
3149 req = ha->req_q_map[0];
3150 for (index = 1;
3151 index < MAX_OUTSTANDING_COMMANDS;
3152 index++) {
3153 fc_port_t *sfcp;
3154
3155 sp = req->outstanding_cmds[index];
3156 if (!sp)
3157 continue;
3158 if (sp->ctx)
3159 continue;
3160 sfcp = sp->fcport;
3161 if (!(sfcp->flags & FCF_TAPE_PRESENT))
3162 continue;
3163
3164 set_bit(ISP_ABORT_NEEDED,
3165 &vha->dpc_flags);
3166 break;
3167 }
3168 spin_unlock_irqrestore(&ha->hardware_lock,
3169 cpu_flags);
3170 }
3171 start_dpc++;
3172 }
3173
3174 /* if the loop has been down for 4 minutes, reinit adapter */
3175 if (atomic_dec_and_test(&vha->loop_down_timer) != 0) {
3176 if (!(vha->device_flags & DFLG_NO_CABLE)) {
3177 DEBUG(printk("scsi(%ld): Loop down - "
3178 "aborting ISP.\n",
3179 vha->host_no));
3180 qla_printk(KERN_WARNING, ha,
3181 "Loop down - aborting ISP.\n");
3182
3183 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3184 }
3185 }
3186 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
3187 vha->host_no,
3188 atomic_read(&vha->loop_down_timer)));
3189 }
3190
3191 /* Check if beacon LED needs to be blinked */
3192 if (ha->beacon_blink_led == 1) {
3193 set_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags);
3194 start_dpc++;
3195 }
3196
3197 /* Process any deferred work. */
3198 if (!list_empty(&vha->work_list))
3199 start_dpc++;
3200
3201 /* Schedule the DPC routine if needed */
3202 if ((test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) ||
3203 test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) ||
3204 test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags) ||
3205 start_dpc ||
3206 test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) ||
3207 test_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags) ||
3208 test_bit(VP_DPC_NEEDED, &vha->dpc_flags) ||
3209 test_bit(RELOGIN_NEEDED, &vha->dpc_flags)))
3210 qla2xxx_wake_dpc(vha);
3211
3212 qla2x00_restart_timer(vha, WATCH_INTERVAL);
3213 }
3214
3215 /* Firmware interface routines. */
3216
3217 #define FW_BLOBS 7
3218 #define FW_ISP21XX 0
3219 #define FW_ISP22XX 1
3220 #define FW_ISP2300 2
3221 #define FW_ISP2322 3
3222 #define FW_ISP24XX 4
3223 #define FW_ISP25XX 5
3224 #define FW_ISP81XX 6
3225
3226 #define FW_FILE_ISP21XX "ql2100_fw.bin"
3227 #define FW_FILE_ISP22XX "ql2200_fw.bin"
3228 #define FW_FILE_ISP2300 "ql2300_fw.bin"
3229 #define FW_FILE_ISP2322 "ql2322_fw.bin"
3230 #define FW_FILE_ISP24XX "ql2400_fw.bin"
3231 #define FW_FILE_ISP25XX "ql2500_fw.bin"
3232 #define FW_FILE_ISP81XX "ql8100_fw.bin"
3233
3234 static DEFINE_MUTEX(qla_fw_lock);
3235
3236 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
3237 { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
3238 { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
3239 { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
3240 { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
3241 { .name = FW_FILE_ISP24XX, },
3242 { .name = FW_FILE_ISP25XX, },
3243 { .name = FW_FILE_ISP81XX, },
3244 };
3245
3246 struct fw_blob *
3247 qla2x00_request_firmware(scsi_qla_host_t *vha)
3248 {
3249 struct qla_hw_data *ha = vha->hw;
3250 struct fw_blob *blob;
3251
3252 blob = NULL;
3253 if (IS_QLA2100(ha)) {
3254 blob = &qla_fw_blobs[FW_ISP21XX];
3255 } else if (IS_QLA2200(ha)) {
3256 blob = &qla_fw_blobs[FW_ISP22XX];
3257 } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
3258 blob = &qla_fw_blobs[FW_ISP2300];
3259 } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
3260 blob = &qla_fw_blobs[FW_ISP2322];
3261 } else if (IS_QLA24XX_TYPE(ha)) {
3262 blob = &qla_fw_blobs[FW_ISP24XX];
3263 } else if (IS_QLA25XX(ha)) {
3264 blob = &qla_fw_blobs[FW_ISP25XX];
3265 } else if (IS_QLA81XX(ha)) {
3266 blob = &qla_fw_blobs[FW_ISP81XX];
3267 }
3268
3269 mutex_lock(&qla_fw_lock);
3270 if (blob->fw)
3271 goto out;
3272
3273 if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
3274 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
3275 "(%s).\n", vha->host_no, blob->name));
3276 blob->fw = NULL;
3277 blob = NULL;
3278 goto out;
3279 }
3280
3281 out:
3282 mutex_unlock(&qla_fw_lock);
3283 return blob;
3284 }
3285
3286 static void
3287 qla2x00_release_firmware(void)
3288 {
3289 int idx;
3290
3291 mutex_lock(&qla_fw_lock);
3292 for (idx = 0; idx < FW_BLOBS; idx++)
3293 if (qla_fw_blobs[idx].fw)
3294 release_firmware(qla_fw_blobs[idx].fw);
3295 mutex_unlock(&qla_fw_lock);
3296 }
3297
3298 static pci_ers_result_t
3299 qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
3300 {
3301 scsi_qla_host_t *vha = pci_get_drvdata(pdev);
3302 struct qla_hw_data *ha = vha->hw;
3303
3304 DEBUG2(qla_printk(KERN_WARNING, ha, "error_detected:state %x\n",
3305 state));
3306
3307 switch (state) {
3308 case pci_channel_io_normal:
3309 ha->flags.eeh_busy = 0;
3310 return PCI_ERS_RESULT_CAN_RECOVER;
3311 case pci_channel_io_frozen:
3312 ha->flags.eeh_busy = 1;
3313 pci_disable_device(pdev);
3314 return PCI_ERS_RESULT_NEED_RESET;
3315 case pci_channel_io_perm_failure:
3316 ha->flags.pci_channel_io_perm_failure = 1;
3317 qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
3318 return PCI_ERS_RESULT_DISCONNECT;
3319 }
3320 return PCI_ERS_RESULT_NEED_RESET;
3321 }
3322
3323 static pci_ers_result_t
3324 qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
3325 {
3326 int risc_paused = 0;
3327 uint32_t stat;
3328 unsigned long flags;
3329 scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3330 struct qla_hw_data *ha = base_vha->hw;
3331 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3332 struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
3333
3334 spin_lock_irqsave(&ha->hardware_lock, flags);
3335 if (IS_QLA2100(ha) || IS_QLA2200(ha)){
3336 stat = RD_REG_DWORD(&reg->hccr);
3337 if (stat & HCCR_RISC_PAUSE)
3338 risc_paused = 1;
3339 } else if (IS_QLA23XX(ha)) {
3340 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
3341 if (stat & HSR_RISC_PAUSED)
3342 risc_paused = 1;
3343 } else if (IS_FWI2_CAPABLE(ha)) {
3344 stat = RD_REG_DWORD(&reg24->host_status);
3345 if (stat & HSRX_RISC_PAUSED)
3346 risc_paused = 1;
3347 }
3348 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3349
3350 if (risc_paused) {
3351 qla_printk(KERN_INFO, ha, "RISC paused -- mmio_enabled, "
3352 "Dumping firmware!\n");
3353 ha->isp_ops->fw_dump(base_vha, 0);
3354
3355 return PCI_ERS_RESULT_NEED_RESET;
3356 } else
3357 return PCI_ERS_RESULT_RECOVERED;
3358 }
3359
3360 static pci_ers_result_t
3361 qla2xxx_pci_slot_reset(struct pci_dev *pdev)
3362 {
3363 pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
3364 scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3365 struct qla_hw_data *ha = base_vha->hw;
3366 int rc;
3367
3368 DEBUG17(qla_printk(KERN_WARNING, ha, "slot_reset\n"));
3369
3370 if (ha->mem_only)
3371 rc = pci_enable_device_mem(pdev);
3372 else
3373 rc = pci_enable_device(pdev);
3374
3375 if (rc) {
3376 qla_printk(KERN_WARNING, ha,
3377 "Can't re-enable PCI device after reset.\n");
3378 return ret;
3379 }
3380
3381 if (ha->isp_ops->pci_config(base_vha))
3382 return ret;
3383
3384 #ifdef QL_DEBUG_LEVEL_17
3385 {
3386 uint8_t b;
3387 uint32_t i;
3388
3389 printk("slot_reset_1: ");
3390 for (i = 0; i < 256; i++) {
3391 pci_read_config_byte(ha->pdev, i, &b);
3392 printk("%s%02x", (i%16) ? " " : "\n", b);
3393 }
3394 printk("\n");
3395 }
3396 #endif
3397 set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
3398 if (qla2x00_abort_isp(base_vha) == QLA_SUCCESS)
3399 ret = PCI_ERS_RESULT_RECOVERED;
3400 clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
3401
3402 DEBUG17(qla_printk(KERN_WARNING, ha,
3403 "slot_reset-return:ret=%x\n", ret));
3404
3405 return ret;
3406 }
3407
3408 static void
3409 qla2xxx_pci_resume(struct pci_dev *pdev)
3410 {
3411 scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3412 struct qla_hw_data *ha = base_vha->hw;
3413 int ret;
3414
3415 DEBUG17(qla_printk(KERN_WARNING, ha, "pci_resume\n"));
3416
3417 ret = qla2x00_wait_for_hba_online(base_vha);
3418 if (ret != QLA_SUCCESS) {
3419 qla_printk(KERN_ERR, ha,
3420 "the device failed to resume I/O "
3421 "from slot/link_reset");
3422 }
3423
3424 ha->flags.eeh_busy = 0;
3425
3426 pci_cleanup_aer_uncorrect_error_status(pdev);
3427 }
3428
3429 static struct pci_error_handlers qla2xxx_err_handler = {
3430 .error_detected = qla2xxx_pci_error_detected,
3431 .mmio_enabled = qla2xxx_pci_mmio_enabled,
3432 .slot_reset = qla2xxx_pci_slot_reset,
3433 .resume = qla2xxx_pci_resume,
3434 };
3435
3436 static struct pci_device_id qla2xxx_pci_tbl[] = {
3437 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
3438 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
3439 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
3440 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
3441 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
3442 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
3443 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
3444 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
3445 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
3446 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8432) },
3447 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
3448 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
3449 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
3450 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8001) },
3451 { 0 },
3452 };
3453 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
3454
3455 static struct pci_driver qla2xxx_pci_driver = {
3456 .name = QLA2XXX_DRIVER_NAME,
3457 .driver = {
3458 .owner = THIS_MODULE,
3459 },
3460 .id_table = qla2xxx_pci_tbl,
3461 .probe = qla2x00_probe_one,
3462 .remove = qla2x00_remove_one,
3463 .err_handler = &qla2xxx_err_handler,
3464 };
3465
3466 /**
3467 * qla2x00_module_init - Module initialization.
3468 **/
3469 static int __init
3470 qla2x00_module_init(void)
3471 {
3472 int ret = 0;
3473
3474 /* Allocate cache for SRBs. */
3475 srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
3476 SLAB_HWCACHE_ALIGN, NULL);
3477 if (srb_cachep == NULL) {
3478 printk(KERN_ERR
3479 "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
3480 return -ENOMEM;
3481 }
3482
3483 /* Derive version string. */
3484 strcpy(qla2x00_version_str, QLA2XXX_VERSION);
3485 if (ql2xextended_error_logging)
3486 strcat(qla2x00_version_str, "-debug");
3487
3488 qla2xxx_transport_template =
3489 fc_attach_transport(&qla2xxx_transport_functions);
3490 if (!qla2xxx_transport_template) {
3491 kmem_cache_destroy(srb_cachep);
3492 return -ENODEV;
3493 }
3494 qla2xxx_transport_vport_template =
3495 fc_attach_transport(&qla2xxx_transport_vport_functions);
3496 if (!qla2xxx_transport_vport_template) {
3497 kmem_cache_destroy(srb_cachep);
3498 fc_release_transport(qla2xxx_transport_template);
3499 return -ENODEV;
3500 }
3501
3502 printk(KERN_INFO "QLogic Fibre Channel HBA Driver: %s\n",
3503 qla2x00_version_str);
3504 ret = pci_register_driver(&qla2xxx_pci_driver);
3505 if (ret) {
3506 kmem_cache_destroy(srb_cachep);
3507 fc_release_transport(qla2xxx_transport_template);
3508 fc_release_transport(qla2xxx_transport_vport_template);
3509 }
3510 return ret;
3511 }
3512
3513 /**
3514 * qla2x00_module_exit - Module cleanup.
3515 **/
3516 static void __exit
3517 qla2x00_module_exit(void)
3518 {
3519 pci_unregister_driver(&qla2xxx_pci_driver);
3520 qla2x00_release_firmware();
3521 kmem_cache_destroy(srb_cachep);
3522 fc_release_transport(qla2xxx_transport_template);
3523 fc_release_transport(qla2xxx_transport_vport_template);
3524 }
3525
3526 module_init(qla2x00_module_init);
3527 module_exit(qla2x00_module_exit);
3528
3529 MODULE_AUTHOR("QLogic Corporation");
3530 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
3531 MODULE_LICENSE("GPL");
3532 MODULE_VERSION(QLA2XXX_VERSION);
3533 MODULE_FIRMWARE(FW_FILE_ISP21XX);
3534 MODULE_FIRMWARE(FW_FILE_ISP22XX);
3535 MODULE_FIRMWARE(FW_FILE_ISP2300);
3536 MODULE_FIRMWARE(FW_FILE_ISP2322);
3537 MODULE_FIRMWARE(FW_FILE_ISP24XX);
3538 MODULE_FIRMWARE(FW_FILE_ISP25XX);
3539 MODULE_FIRMWARE(FW_FILE_ISP81XX);
kernel-based virtual machine