2c0876c81a3f6e5793d504b825146b6de7c2ae81
[pandora-kernel.git] / drivers / scsi / qla2xxx / qla_os.c
1 /*
2  * QLogic Fibre Channel HBA Driver
3  * Copyright (c)  2003-2010 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 #include <linux/slab.h>
16
17 #include <scsi/scsi_tcq.h>
18 #include <scsi/scsicam.h>
19 #include <scsi/scsi_transport.h>
20 #include <scsi/scsi_transport_fc.h>
21
22 /*
23  * Driver version
24  */
25 char qla2x00_version_str[40];
26
27 static int apidev_major;
28
29 /*
30  * SRB allocation cache
31  */
32 static struct kmem_cache *srb_cachep;
33
34 /*
35  * CT6 CTX allocation cache
36  */
37 static struct kmem_cache *ctx_cachep;
38
39 int ql2xlogintimeout = 20;
40 module_param(ql2xlogintimeout, int, S_IRUGO|S_IRUSR);
41 MODULE_PARM_DESC(ql2xlogintimeout,
42                 "Login timeout value in seconds.");
43
44 int qlport_down_retry;
45 module_param(qlport_down_retry, int, S_IRUGO|S_IRUSR);
46 MODULE_PARM_DESC(qlport_down_retry,
47                 "Maximum number of command retries to a port that returns "
48                 "a PORT-DOWN status.");
49
50 int ql2xplogiabsentdevice;
51 module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR);
52 MODULE_PARM_DESC(ql2xplogiabsentdevice,
53                 "Option to enable PLOGI to devices that are not present after "
54                 "a Fabric scan.  This is needed for several broken switches. "
55                 "Default is 0 - no PLOGI. 1 - perfom PLOGI.");
56
57 int ql2xloginretrycount = 0;
58 module_param(ql2xloginretrycount, int, S_IRUGO|S_IRUSR);
59 MODULE_PARM_DESC(ql2xloginretrycount,
60                 "Specify an alternate value for the NVRAM login retry count.");
61
62 int ql2xallocfwdump = 1;
63 module_param(ql2xallocfwdump, int, S_IRUGO|S_IRUSR);
64 MODULE_PARM_DESC(ql2xallocfwdump,
65                 "Option to enable allocation of memory for a firmware dump "
66                 "during HBA initialization.  Memory allocation requirements "
67                 "vary by ISP type.  Default is 1 - allocate memory.");
68
69 int ql2xextended_error_logging;
70 module_param(ql2xextended_error_logging, int, S_IRUGO|S_IWUSR);
71 MODULE_PARM_DESC(ql2xextended_error_logging,
72                 "Option to enable extended error logging, "
73                 "Default is 0 - no logging. 1 - log errors.");
74
75 int ql2xshiftctondsd = 6;
76 module_param(ql2xshiftctondsd, int, S_IRUGO|S_IRUSR);
77 MODULE_PARM_DESC(ql2xshiftctondsd,
78                 "Set to control shifting of command type processing "
79                 "based on total number of SG elements.");
80
81 static void qla2x00_free_device(scsi_qla_host_t *);
82
83 int ql2xfdmienable=1;
84 module_param(ql2xfdmienable, int, S_IRUGO|S_IRUSR);
85 MODULE_PARM_DESC(ql2xfdmienable,
86                 "Enables FDMI registrations. "
87                 "0 - no FDMI. Default is 1 - perform FDMI.");
88
89 #define MAX_Q_DEPTH    32
90 static int ql2xmaxqdepth = MAX_Q_DEPTH;
91 module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR);
92 MODULE_PARM_DESC(ql2xmaxqdepth,
93                 "Maximum queue depth to report for target devices.");
94
95 /* Do not change the value of this after module load */
96 int ql2xenabledif = 1;
97 module_param(ql2xenabledif, int, S_IRUGO|S_IWUSR);
98 MODULE_PARM_DESC(ql2xenabledif,
99                 " Enable T10-CRC-DIF "
100                 " Default is 0 - No DIF Support. 1 - Enable it");
101
102 int ql2xenablehba_err_chk;
103 module_param(ql2xenablehba_err_chk, int, S_IRUGO|S_IWUSR);
104 MODULE_PARM_DESC(ql2xenablehba_err_chk,
105                 " Enable T10-CRC-DIF Error isolation by HBA"
106                 " Default is 0 - Error isolation disabled, 1 - Enable it");
107
108 int ql2xiidmaenable=1;
109 module_param(ql2xiidmaenable, int, S_IRUGO|S_IRUSR);
110 MODULE_PARM_DESC(ql2xiidmaenable,
111                 "Enables iIDMA settings "
112                 "Default is 1 - perform iIDMA. 0 - no iIDMA.");
113
114 int ql2xmaxqueues = 1;
115 module_param(ql2xmaxqueues, int, S_IRUGO|S_IRUSR);
116 MODULE_PARM_DESC(ql2xmaxqueues,
117                 "Enables MQ settings "
118                 "Default is 1 for single queue. Set it to number "
119                 "of queues in MQ mode.");
120
121 int ql2xmultique_tag;
122 module_param(ql2xmultique_tag, int, S_IRUGO|S_IRUSR);
123 MODULE_PARM_DESC(ql2xmultique_tag,
124                 "Enables CPU affinity settings for the driver "
125                 "Default is 0 for no affinity of request and response IO. "
126                 "Set it to 1 to turn on the cpu affinity.");
127
128 int ql2xfwloadbin;
129 module_param(ql2xfwloadbin, int, S_IRUGO|S_IRUSR);
130 MODULE_PARM_DESC(ql2xfwloadbin,
131                 "Option to specify location from which to load ISP firmware:\n"
132                 " 2 -- load firmware via the request_firmware() (hotplug)\n"
133                 "      interface.\n"
134                 " 1 -- load firmware from flash.\n"
135                 " 0 -- use default semantics.\n");
136
137 int ql2xetsenable;
138 module_param(ql2xetsenable, int, S_IRUGO|S_IRUSR);
139 MODULE_PARM_DESC(ql2xetsenable,
140                 "Enables firmware ETS burst."
141                 "Default is 0 - skip ETS enablement.");
142
143 int ql2xdbwr = 1;
144 module_param(ql2xdbwr, int, S_IRUGO|S_IRUSR);
145 MODULE_PARM_DESC(ql2xdbwr,
146         "Option to specify scheme for request queue posting\n"
147         " 0 -- Regular doorbell.\n"
148         " 1 -- CAMRAM doorbell (faster).\n");
149
150 int ql2xdontresethba;
151 module_param(ql2xdontresethba, int, S_IRUGO|S_IRUSR);
152 MODULE_PARM_DESC(ql2xdontresethba,
153         "Option to specify reset behaviour\n"
154         " 0 (Default) -- Reset on failure.\n"
155         " 1 -- Do not reset on failure.\n");
156
157 int ql2xtargetreset = 1;
158 module_param(ql2xtargetreset, int, S_IRUGO|S_IRUSR);
159 MODULE_PARM_DESC(ql2xtargetreset,
160                  "Enable target reset."
161                  "Default is 1 - use hw defaults.");
162
163 int ql2xgffidenable;
164 module_param(ql2xgffidenable, int, S_IRUGO|S_IRUSR);
165 MODULE_PARM_DESC(ql2xgffidenable,
166                 "Enables GFF_ID checks of port type. "
167                 "Default is 0 - Do not use GFF_ID information.");
168
169 int ql2xasynctmfenable;
170 module_param(ql2xasynctmfenable, int, S_IRUGO|S_IRUSR);
171 MODULE_PARM_DESC(ql2xasynctmfenable,
172                 "Enables issue of TM IOCBs asynchronously via IOCB mechanism"
173                 "Default is 0 - Issue TM IOCBs via mailbox mechanism.");
174 /*
175  * SCSI host template entry points
176  */
177 static int qla2xxx_slave_configure(struct scsi_device * device);
178 static int qla2xxx_slave_alloc(struct scsi_device *);
179 static int qla2xxx_scan_finished(struct Scsi_Host *, unsigned long time);
180 static void qla2xxx_scan_start(struct Scsi_Host *);
181 static void qla2xxx_slave_destroy(struct scsi_device *);
182 static int qla2xxx_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *cmd);
183 static int qla2xxx_eh_abort(struct scsi_cmnd *);
184 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
185 static int qla2xxx_eh_target_reset(struct scsi_cmnd *);
186 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
187 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
188
189 static int qla2x00_change_queue_depth(struct scsi_device *, int, int);
190 static int qla2x00_change_queue_type(struct scsi_device *, int);
191
192 struct scsi_host_template qla2xxx_driver_template = {
193         .module                 = THIS_MODULE,
194         .name                   = QLA2XXX_DRIVER_NAME,
195         .queuecommand           = qla2xxx_queuecommand,
196
197         .eh_abort_handler       = qla2xxx_eh_abort,
198         .eh_device_reset_handler = qla2xxx_eh_device_reset,
199         .eh_target_reset_handler = qla2xxx_eh_target_reset,
200         .eh_bus_reset_handler   = qla2xxx_eh_bus_reset,
201         .eh_host_reset_handler  = qla2xxx_eh_host_reset,
202
203         .slave_configure        = qla2xxx_slave_configure,
204
205         .slave_alloc            = qla2xxx_slave_alloc,
206         .slave_destroy          = qla2xxx_slave_destroy,
207         .scan_finished          = qla2xxx_scan_finished,
208         .scan_start             = qla2xxx_scan_start,
209         .change_queue_depth     = qla2x00_change_queue_depth,
210         .change_queue_type      = qla2x00_change_queue_type,
211         .this_id                = -1,
212         .cmd_per_lun            = 3,
213         .use_clustering         = ENABLE_CLUSTERING,
214         .sg_tablesize           = SG_ALL,
215
216         .max_sectors            = 0xFFFF,
217         .shost_attrs            = qla2x00_host_attrs,
218 };
219
220 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
221 struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
222
223 /* TODO Convert to inlines
224  *
225  * Timer routines
226  */
227
228 __inline__ void
229 qla2x00_start_timer(scsi_qla_host_t *vha, void *func, unsigned long interval)
230 {
231         init_timer(&vha->timer);
232         vha->timer.expires = jiffies + interval * HZ;
233         vha->timer.data = (unsigned long)vha;
234         vha->timer.function = (void (*)(unsigned long))func;
235         add_timer(&vha->timer);
236         vha->timer_active = 1;
237 }
238
239 static inline void
240 qla2x00_restart_timer(scsi_qla_host_t *vha, unsigned long interval)
241 {
242         /* Currently used for 82XX only. */
243         if (vha->device_flags & DFLG_DEV_FAILED)
244                 return;
245
246         mod_timer(&vha->timer, jiffies + interval * HZ);
247 }
248
249 static __inline__ void
250 qla2x00_stop_timer(scsi_qla_host_t *vha)
251 {
252         del_timer_sync(&vha->timer);
253         vha->timer_active = 0;
254 }
255
256 static int qla2x00_do_dpc(void *data);
257
258 static void qla2x00_rst_aen(scsi_qla_host_t *);
259
260 static int qla2x00_mem_alloc(struct qla_hw_data *, uint16_t, uint16_t,
261         struct req_que **, struct rsp_que **);
262 static void qla2x00_free_fw_dump(struct qla_hw_data *);
263 static void qla2x00_mem_free(struct qla_hw_data *);
264 static void qla2x00_sp_free_dma(srb_t *);
265
266 /* -------------------------------------------------------------------------- */
267 static int qla2x00_alloc_queues(struct qla_hw_data *ha)
268 {
269         ha->req_q_map = kzalloc(sizeof(struct req_que *) * ha->max_req_queues,
270                                 GFP_KERNEL);
271         if (!ha->req_q_map) {
272                 qla_printk(KERN_WARNING, ha,
273                         "Unable to allocate memory for request queue ptrs\n");
274                 goto fail_req_map;
275         }
276
277         ha->rsp_q_map = kzalloc(sizeof(struct rsp_que *) * ha->max_rsp_queues,
278                                 GFP_KERNEL);
279         if (!ha->rsp_q_map) {
280                 qla_printk(KERN_WARNING, ha,
281                         "Unable to allocate memory for response queue ptrs\n");
282                 goto fail_rsp_map;
283         }
284         set_bit(0, ha->rsp_qid_map);
285         set_bit(0, ha->req_qid_map);
286         return 1;
287
288 fail_rsp_map:
289         kfree(ha->req_q_map);
290         ha->req_q_map = NULL;
291 fail_req_map:
292         return -ENOMEM;
293 }
294
295 static void qla2x00_free_req_que(struct qla_hw_data *ha, struct req_que *req)
296 {
297         if (req && req->ring)
298                 dma_free_coherent(&ha->pdev->dev,
299                 (req->length + 1) * sizeof(request_t),
300                 req->ring, req->dma);
301
302         kfree(req);
303         req = NULL;
304 }
305
306 static void qla2x00_free_rsp_que(struct qla_hw_data *ha, struct rsp_que *rsp)
307 {
308         if (rsp && rsp->ring)
309                 dma_free_coherent(&ha->pdev->dev,
310                 (rsp->length + 1) * sizeof(response_t),
311                 rsp->ring, rsp->dma);
312
313         kfree(rsp);
314         rsp = NULL;
315 }
316
317 static void qla2x00_free_queues(struct qla_hw_data *ha)
318 {
319         struct req_que *req;
320         struct rsp_que *rsp;
321         int cnt;
322
323         for (cnt = 0; cnt < ha->max_req_queues; cnt++) {
324                 req = ha->req_q_map[cnt];
325                 qla2x00_free_req_que(ha, req);
326         }
327         kfree(ha->req_q_map);
328         ha->req_q_map = NULL;
329
330         for (cnt = 0; cnt < ha->max_rsp_queues; cnt++) {
331                 rsp = ha->rsp_q_map[cnt];
332                 qla2x00_free_rsp_que(ha, rsp);
333         }
334         kfree(ha->rsp_q_map);
335         ha->rsp_q_map = NULL;
336 }
337
338 static int qla25xx_setup_mode(struct scsi_qla_host *vha)
339 {
340         uint16_t options = 0;
341         int ques, req, ret;
342         struct qla_hw_data *ha = vha->hw;
343
344         if (!(ha->fw_attributes & BIT_6)) {
345                 qla_printk(KERN_INFO, ha,
346                         "Firmware is not multi-queue capable\n");
347                 goto fail;
348         }
349         if (ql2xmultique_tag) {
350                 /* create a request queue for IO */
351                 options |= BIT_7;
352                 req = qla25xx_create_req_que(ha, options, 0, 0, -1,
353                         QLA_DEFAULT_QUE_QOS);
354                 if (!req) {
355                         qla_printk(KERN_WARNING, ha,
356                                 "Can't create request queue\n");
357                         goto fail;
358                 }
359                 ha->wq = create_workqueue("qla2xxx_wq");
360                 vha->req = ha->req_q_map[req];
361                 options |= BIT_1;
362                 for (ques = 1; ques < ha->max_rsp_queues; ques++) {
363                         ret = qla25xx_create_rsp_que(ha, options, 0, 0, req);
364                         if (!ret) {
365                                 qla_printk(KERN_WARNING, ha,
366                                         "Response Queue create failed\n");
367                                 goto fail2;
368                         }
369                 }
370                 ha->flags.cpu_affinity_enabled = 1;
371
372                 DEBUG2(qla_printk(KERN_INFO, ha,
373                         "CPU affinity mode enabled, no. of response"
374                         " queues:%d, no. of request queues:%d\n",
375                         ha->max_rsp_queues, ha->max_req_queues));
376         }
377         return 0;
378 fail2:
379         qla25xx_delete_queues(vha);
380         destroy_workqueue(ha->wq);
381         ha->wq = NULL;
382 fail:
383         ha->mqenable = 0;
384         kfree(ha->req_q_map);
385         kfree(ha->rsp_q_map);
386         ha->max_req_queues = ha->max_rsp_queues = 1;
387         return 1;
388 }
389
390 static char *
391 qla2x00_pci_info_str(struct scsi_qla_host *vha, char *str)
392 {
393         struct qla_hw_data *ha = vha->hw;
394         static char *pci_bus_modes[] = {
395                 "33", "66", "100", "133",
396         };
397         uint16_t pci_bus;
398
399         strcpy(str, "PCI");
400         pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
401         if (pci_bus) {
402                 strcat(str, "-X (");
403                 strcat(str, pci_bus_modes[pci_bus]);
404         } else {
405                 pci_bus = (ha->pci_attr & BIT_8) >> 8;
406                 strcat(str, " (");
407                 strcat(str, pci_bus_modes[pci_bus]);
408         }
409         strcat(str, " MHz)");
410
411         return (str);
412 }
413
414 static char *
415 qla24xx_pci_info_str(struct scsi_qla_host *vha, char *str)
416 {
417         static char *pci_bus_modes[] = { "33", "66", "100", "133", };
418         struct qla_hw_data *ha = vha->hw;
419         uint32_t pci_bus;
420         int pcie_reg;
421
422         pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
423         if (pcie_reg) {
424                 char lwstr[6];
425                 uint16_t pcie_lstat, lspeed, lwidth;
426
427                 pcie_reg += 0x12;
428                 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
429                 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
430                 lwidth = (pcie_lstat &
431                     (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
432
433                 strcpy(str, "PCIe (");
434                 if (lspeed == 1)
435                         strcat(str, "2.5GT/s ");
436                 else if (lspeed == 2)
437                         strcat(str, "5.0GT/s ");
438                 else
439                         strcat(str, "<unknown> ");
440                 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
441                 strcat(str, lwstr);
442
443                 return str;
444         }
445
446         strcpy(str, "PCI");
447         pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
448         if (pci_bus == 0 || pci_bus == 8) {
449                 strcat(str, " (");
450                 strcat(str, pci_bus_modes[pci_bus >> 3]);
451         } else {
452                 strcat(str, "-X ");
453                 if (pci_bus & BIT_2)
454                         strcat(str, "Mode 2");
455                 else
456                         strcat(str, "Mode 1");
457                 strcat(str, " (");
458                 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
459         }
460         strcat(str, " MHz)");
461
462         return str;
463 }
464
465 static char *
466 qla2x00_fw_version_str(struct scsi_qla_host *vha, char *str)
467 {
468         char un_str[10];
469         struct qla_hw_data *ha = vha->hw;
470
471         sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
472             ha->fw_minor_version,
473             ha->fw_subminor_version);
474
475         if (ha->fw_attributes & BIT_9) {
476                 strcat(str, "FLX");
477                 return (str);
478         }
479
480         switch (ha->fw_attributes & 0xFF) {
481         case 0x7:
482                 strcat(str, "EF");
483                 break;
484         case 0x17:
485                 strcat(str, "TP");
486                 break;
487         case 0x37:
488                 strcat(str, "IP");
489                 break;
490         case 0x77:
491                 strcat(str, "VI");
492                 break;
493         default:
494                 sprintf(un_str, "(%x)", ha->fw_attributes);
495                 strcat(str, un_str);
496                 break;
497         }
498         if (ha->fw_attributes & 0x100)
499                 strcat(str, "X");
500
501         return (str);
502 }
503
504 static char *
505 qla24xx_fw_version_str(struct scsi_qla_host *vha, char *str)
506 {
507         struct qla_hw_data *ha = vha->hw;
508
509         sprintf(str, "%d.%02d.%02d (%x)", ha->fw_major_version,
510             ha->fw_minor_version, ha->fw_subminor_version, ha->fw_attributes);
511         return str;
512 }
513
514 static inline srb_t *
515 qla2x00_get_new_sp(scsi_qla_host_t *vha, fc_port_t *fcport,
516     struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
517 {
518         srb_t *sp;
519         struct qla_hw_data *ha = vha->hw;
520
521         sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
522         if (!sp)
523                 return sp;
524
525         atomic_set(&sp->ref_count, 1);
526         sp->fcport = fcport;
527         sp->cmd = cmd;
528         sp->flags = 0;
529         CMD_SP(cmd) = (void *)sp;
530         cmd->scsi_done = done;
531         sp->ctx = NULL;
532
533         return sp;
534 }
535
536 static int
537 qla2xxx_queuecommand_lck(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
538 {
539         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
540         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
541         struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
542         struct qla_hw_data *ha = vha->hw;
543         struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
544         srb_t *sp;
545         int rval;
546
547         spin_unlock_irq(vha->host->host_lock);
548         if (ha->flags.eeh_busy) {
549                 if (ha->flags.pci_channel_io_perm_failure)
550                         cmd->result = DID_NO_CONNECT << 16;
551                 else
552                         cmd->result = DID_REQUEUE << 16;
553                 goto qc24_fail_command;
554         }
555
556         rval = fc_remote_port_chkready(rport);
557         if (rval) {
558                 cmd->result = rval;
559                 goto qc24_fail_command;
560         }
561
562         if (!vha->flags.difdix_supported &&
563                 scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) {
564                         DEBUG2(qla_printk(KERN_ERR, ha,
565                             "DIF Cap Not Reg, fail DIF capable cmd's:%x\n",
566                             cmd->cmnd[0]));
567                         cmd->result = DID_NO_CONNECT << 16;
568                         goto qc24_fail_command;
569         }
570         if (atomic_read(&fcport->state) != FCS_ONLINE) {
571                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
572                         atomic_read(&fcport->state) == FCS_DEVICE_LOST ||
573                         atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
574                         cmd->result = DID_NO_CONNECT << 16;
575                         goto qc24_fail_command;
576                 }
577                 goto qc24_target_busy;
578         }
579
580         sp = qla2x00_get_new_sp(base_vha, fcport, cmd, done);
581         if (!sp)
582                 goto qc24_host_busy_lock;
583
584         rval = ha->isp_ops->start_scsi(sp);
585         if (rval != QLA_SUCCESS)
586                 goto qc24_host_busy_free_sp;
587
588         spin_lock_irq(vha->host->host_lock);
589
590         return 0;
591
592 qc24_host_busy_free_sp:
593         qla2x00_sp_free_dma(sp);
594         mempool_free(sp, ha->srb_mempool);
595
596 qc24_host_busy_lock:
597         spin_lock_irq(vha->host->host_lock);
598         return SCSI_MLQUEUE_HOST_BUSY;
599
600 qc24_target_busy:
601         spin_lock_irq(vha->host->host_lock);
602         return SCSI_MLQUEUE_TARGET_BUSY;
603
604 qc24_fail_command:
605         spin_lock_irq(vha->host->host_lock);
606         done(cmd);
607
608         return 0;
609 }
610
611 static DEF_SCSI_QCMD(qla2xxx_queuecommand)
612
613
614 /*
615  * qla2x00_eh_wait_on_command
616  *    Waits for the command to be returned by the Firmware for some
617  *    max time.
618  *
619  * Input:
620  *    cmd = Scsi Command to wait on.
621  *
622  * Return:
623  *    Not Found : 0
624  *    Found : 1
625  */
626 static int
627 qla2x00_eh_wait_on_command(struct scsi_cmnd *cmd)
628 {
629 #define ABORT_POLLING_PERIOD    1000
630 #define ABORT_WAIT_ITER         ((10 * 1000) / (ABORT_POLLING_PERIOD))
631         unsigned long wait_iter = ABORT_WAIT_ITER;
632         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
633         struct qla_hw_data *ha = vha->hw;
634         int ret = QLA_SUCCESS;
635
636         if (unlikely(pci_channel_offline(ha->pdev)) || ha->flags.eeh_busy) {
637                 DEBUG17(qla_printk(KERN_WARNING, ha, "return:eh_wait\n"));
638                 return ret;
639         }
640
641         while (CMD_SP(cmd) && wait_iter--) {
642                 msleep(ABORT_POLLING_PERIOD);
643         }
644         if (CMD_SP(cmd))
645                 ret = QLA_FUNCTION_FAILED;
646
647         return ret;
648 }
649
650 /*
651  * qla2x00_wait_for_hba_online
652  *    Wait till the HBA is online after going through
653  *    <= MAX_RETRIES_OF_ISP_ABORT  or
654  *    finally HBA is disabled ie marked offline
655  *
656  * Input:
657  *     ha - pointer to host adapter structure
658  *
659  * Note:
660  *    Does context switching-Release SPIN_LOCK
661  *    (if any) before calling this routine.
662  *
663  * Return:
664  *    Success (Adapter is online) : 0
665  *    Failed  (Adapter is offline/disabled) : 1
666  */
667 int
668 qla2x00_wait_for_hba_online(scsi_qla_host_t *vha)
669 {
670         int             return_status;
671         unsigned long   wait_online;
672         struct qla_hw_data *ha = vha->hw;
673         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
674
675         wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
676         while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
677             test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
678             test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
679             ha->dpc_active) && time_before(jiffies, wait_online)) {
680
681                 msleep(1000);
682         }
683         if (base_vha->flags.online)
684                 return_status = QLA_SUCCESS;
685         else
686                 return_status = QLA_FUNCTION_FAILED;
687
688         return (return_status);
689 }
690
691 /*
692  * qla2x00_wait_for_reset_ready
693  *    Wait till the HBA is online after going through
694  *    <= MAX_RETRIES_OF_ISP_ABORT  or
695  *    finally HBA is disabled ie marked offline or flash
696  *    operations are in progress.
697  *
698  * Input:
699  *     ha - pointer to host adapter structure
700  *
701  * Note:
702  *    Does context switching-Release SPIN_LOCK
703  *    (if any) before calling this routine.
704  *
705  * Return:
706  *    Success (Adapter is online/no flash ops) : 0
707  *    Failed  (Adapter is offline/disabled/flash ops in progress) : 1
708  */
709 static int
710 qla2x00_wait_for_reset_ready(scsi_qla_host_t *vha)
711 {
712         int             return_status;
713         unsigned long   wait_online;
714         struct qla_hw_data *ha = vha->hw;
715         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
716
717         wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
718         while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
719             test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
720             test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
721             ha->optrom_state != QLA_SWAITING ||
722             ha->dpc_active) && time_before(jiffies, wait_online))
723                 msleep(1000);
724
725         if (base_vha->flags.online &&  ha->optrom_state == QLA_SWAITING)
726                 return_status = QLA_SUCCESS;
727         else
728                 return_status = QLA_FUNCTION_FAILED;
729
730         DEBUG2(printk("%s return_status=%d\n", __func__, return_status));
731
732         return return_status;
733 }
734
735 int
736 qla2x00_wait_for_chip_reset(scsi_qla_host_t *vha)
737 {
738         int             return_status;
739         unsigned long   wait_reset;
740         struct qla_hw_data *ha = vha->hw;
741         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
742
743         wait_reset = jiffies + (MAX_LOOP_TIMEOUT * HZ);
744         while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
745             test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
746             test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
747             ha->dpc_active) && time_before(jiffies, wait_reset)) {
748
749                 msleep(1000);
750
751                 if (!test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags) &&
752                     ha->flags.chip_reset_done)
753                         break;
754         }
755         if (ha->flags.chip_reset_done)
756                 return_status = QLA_SUCCESS;
757         else
758                 return_status = QLA_FUNCTION_FAILED;
759
760         return return_status;
761 }
762
763 /*
764  * qla2x00_wait_for_loop_ready
765  *    Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
766  *    to be in LOOP_READY state.
767  * Input:
768  *     ha - pointer to host adapter structure
769  *
770  * Note:
771  *    Does context switching-Release SPIN_LOCK
772  *    (if any) before calling this routine.
773  *
774  *
775  * Return:
776  *    Success (LOOP_READY) : 0
777  *    Failed  (LOOP_NOT_READY) : 1
778  */
779 static inline int
780 qla2x00_wait_for_loop_ready(scsi_qla_host_t *vha)
781 {
782         int      return_status = QLA_SUCCESS;
783         unsigned long loop_timeout ;
784         struct qla_hw_data *ha = vha->hw;
785         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
786
787         /* wait for 5 min at the max for loop to be ready */
788         loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
789
790         while ((!atomic_read(&base_vha->loop_down_timer) &&
791             atomic_read(&base_vha->loop_state) == LOOP_DOWN) ||
792             atomic_read(&base_vha->loop_state) != LOOP_READY) {
793                 if (atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
794                         return_status = QLA_FUNCTION_FAILED;
795                         break;
796                 }
797                 msleep(1000);
798                 if (time_after_eq(jiffies, loop_timeout)) {
799                         return_status = QLA_FUNCTION_FAILED;
800                         break;
801                 }
802         }
803         return (return_status);
804 }
805
806 static void
807 sp_get(struct srb *sp)
808 {
809         atomic_inc(&sp->ref_count);
810 }
811
812 /**************************************************************************
813 * qla2xxx_eh_abort
814 *
815 * Description:
816 *    The abort function will abort the specified command.
817 *
818 * Input:
819 *    cmd = Linux SCSI command packet to be aborted.
820 *
821 * Returns:
822 *    Either SUCCESS or FAILED.
823 *
824 * Note:
825 *    Only return FAILED if command not returned by firmware.
826 **************************************************************************/
827 static int
828 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
829 {
830         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
831         srb_t *sp;
832         int ret = SUCCESS;
833         unsigned int id, lun;
834         unsigned long flags;
835         int wait = 0;
836         struct qla_hw_data *ha = vha->hw;
837
838         fc_block_scsi_eh(cmd);
839
840         if (!CMD_SP(cmd))
841                 return SUCCESS;
842
843         id = cmd->device->id;
844         lun = cmd->device->lun;
845
846         spin_lock_irqsave(&ha->hardware_lock, flags);
847         sp = (srb_t *) CMD_SP(cmd);
848         if (!sp) {
849                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
850                 return SUCCESS;
851         }
852
853         DEBUG2(printk("%s(%ld): aborting sp %p from RISC.",
854             __func__, vha->host_no, sp));
855
856         /* Get a reference to the sp and drop the lock.*/
857         sp_get(sp);
858
859         spin_unlock_irqrestore(&ha->hardware_lock, flags);
860         if (ha->isp_ops->abort_command(sp)) {
861                 DEBUG2(printk("%s(%ld): abort_command "
862                 "mbx failed.\n", __func__, vha->host_no));
863                 ret = FAILED;
864         } else {
865                 DEBUG3(printk("%s(%ld): abort_command "
866                 "mbx success.\n", __func__, vha->host_no));
867                 wait = 1;
868         }
869         qla2x00_sp_compl(ha, sp);
870
871         /* Wait for the command to be returned. */
872         if (wait) {
873                 if (qla2x00_eh_wait_on_command(cmd) != QLA_SUCCESS) {
874                         qla_printk(KERN_ERR, ha,
875                             "scsi(%ld:%d:%d): Abort handler timed out -- %x.\n",
876                             vha->host_no, id, lun, ret);
877                         ret = FAILED;
878                 }
879         }
880
881         qla_printk(KERN_INFO, ha,
882             "scsi(%ld:%d:%d): Abort command issued -- %d %x.\n",
883             vha->host_no, id, lun, wait, ret);
884
885         return ret;
886 }
887
888 int
889 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *vha, unsigned int t,
890         unsigned int l, enum nexus_wait_type type)
891 {
892         int cnt, match, status;
893         unsigned long flags;
894         struct qla_hw_data *ha = vha->hw;
895         struct req_que *req;
896         srb_t *sp;
897
898         status = QLA_SUCCESS;
899
900         spin_lock_irqsave(&ha->hardware_lock, flags);
901         req = vha->req;
902         for (cnt = 1; status == QLA_SUCCESS &&
903                 cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
904                 sp = req->outstanding_cmds[cnt];
905                 if (!sp)
906                         continue;
907                 if ((sp->ctx) && !IS_PROT_IO(sp))
908                         continue;
909                 if (vha->vp_idx != sp->fcport->vha->vp_idx)
910                         continue;
911                 match = 0;
912                 switch (type) {
913                 case WAIT_HOST:
914                         match = 1;
915                         break;
916                 case WAIT_TARGET:
917                         match = sp->cmd->device->id == t;
918                         break;
919                 case WAIT_LUN:
920                         match = (sp->cmd->device->id == t &&
921                                 sp->cmd->device->lun == l);
922                         break;
923                 }
924                 if (!match)
925                         continue;
926
927                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
928                 status = qla2x00_eh_wait_on_command(sp->cmd);
929                 spin_lock_irqsave(&ha->hardware_lock, flags);
930         }
931         spin_unlock_irqrestore(&ha->hardware_lock, flags);
932
933         return status;
934 }
935
936 static char *reset_errors[] = {
937         "HBA not online",
938         "HBA not ready",
939         "Task management failed",
940         "Waiting for command completions",
941 };
942
943 static int
944 __qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type,
945     struct scsi_cmnd *cmd, int (*do_reset)(struct fc_port *, unsigned int, int))
946 {
947         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
948         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
949         int err;
950
951         fc_block_scsi_eh(cmd);
952
953         if (!fcport)
954                 return FAILED;
955
956         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET ISSUED.\n",
957             vha->host_no, cmd->device->id, cmd->device->lun, name);
958
959         err = 0;
960         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
961                 goto eh_reset_failed;
962         err = 1;
963         if (qla2x00_wait_for_loop_ready(vha) != QLA_SUCCESS)
964                 goto eh_reset_failed;
965         err = 2;
966         if (do_reset(fcport, cmd->device->lun, cmd->request->cpu + 1)
967                 != QLA_SUCCESS)
968                 goto eh_reset_failed;
969         err = 3;
970         if (qla2x00_eh_wait_for_pending_commands(vha, cmd->device->id,
971             cmd->device->lun, type) != QLA_SUCCESS)
972                 goto eh_reset_failed;
973
974         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET SUCCEEDED.\n",
975             vha->host_no, cmd->device->id, cmd->device->lun, name);
976
977         return SUCCESS;
978
979 eh_reset_failed:
980         qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET FAILED: %s.\n"
981             , vha->host_no, cmd->device->id, cmd->device->lun, name,
982             reset_errors[err]);
983         return FAILED;
984 }
985
986 static int
987 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
988 {
989         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
990         struct qla_hw_data *ha = vha->hw;
991
992         return __qla2xxx_eh_generic_reset("DEVICE", WAIT_LUN, cmd,
993             ha->isp_ops->lun_reset);
994 }
995
996 static int
997 qla2xxx_eh_target_reset(struct scsi_cmnd *cmd)
998 {
999         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1000         struct qla_hw_data *ha = vha->hw;
1001
1002         return __qla2xxx_eh_generic_reset("TARGET", WAIT_TARGET, cmd,
1003             ha->isp_ops->target_reset);
1004 }
1005
1006 /**************************************************************************
1007 * qla2xxx_eh_bus_reset
1008 *
1009 * Description:
1010 *    The bus reset function will reset the bus and abort any executing
1011 *    commands.
1012 *
1013 * Input:
1014 *    cmd = Linux SCSI command packet of the command that cause the
1015 *          bus reset.
1016 *
1017 * Returns:
1018 *    SUCCESS/FAILURE (defined as macro in scsi.h).
1019 *
1020 **************************************************************************/
1021 static int
1022 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
1023 {
1024         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1025         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
1026         int ret = FAILED;
1027         unsigned int id, lun;
1028
1029         fc_block_scsi_eh(cmd);
1030
1031         id = cmd->device->id;
1032         lun = cmd->device->lun;
1033
1034         if (!fcport)
1035                 return ret;
1036
1037         qla_printk(KERN_INFO, vha->hw,
1038             "scsi(%ld:%d:%d): BUS RESET ISSUED.\n", vha->host_no, id, lun);
1039
1040         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
1041                 DEBUG2(printk("%s failed:board disabled\n",__func__));
1042                 goto eh_bus_reset_done;
1043         }
1044
1045         if (qla2x00_wait_for_loop_ready(vha) == QLA_SUCCESS) {
1046                 if (qla2x00_loop_reset(vha) == QLA_SUCCESS)
1047                         ret = SUCCESS;
1048         }
1049         if (ret == FAILED)
1050                 goto eh_bus_reset_done;
1051
1052         /* Flush outstanding commands. */
1053         if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST) !=
1054             QLA_SUCCESS)
1055                 ret = FAILED;
1056
1057 eh_bus_reset_done:
1058         qla_printk(KERN_INFO, vha->hw, "%s: reset %s\n", __func__,
1059             (ret == FAILED) ? "failed" : "succeded");
1060
1061         return ret;
1062 }
1063
1064 /**************************************************************************
1065 * qla2xxx_eh_host_reset
1066 *
1067 * Description:
1068 *    The reset function will reset the Adapter.
1069 *
1070 * Input:
1071 *      cmd = Linux SCSI command packet of the command that cause the
1072 *            adapter reset.
1073 *
1074 * Returns:
1075 *      Either SUCCESS or FAILED.
1076 *
1077 * Note:
1078 **************************************************************************/
1079 static int
1080 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
1081 {
1082         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1083         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
1084         struct qla_hw_data *ha = vha->hw;
1085         int ret = FAILED;
1086         unsigned int id, lun;
1087         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
1088
1089         fc_block_scsi_eh(cmd);
1090
1091         id = cmd->device->id;
1092         lun = cmd->device->lun;
1093
1094         if (!fcport)
1095                 return ret;
1096
1097         qla_printk(KERN_INFO, ha,
1098             "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", vha->host_no, id, lun);
1099
1100         if (qla2x00_wait_for_reset_ready(vha) != QLA_SUCCESS)
1101                 goto eh_host_reset_lock;
1102
1103         /*
1104          * Fixme-may be dpc thread is active and processing
1105          * loop_resync,so wait a while for it to
1106          * be completed and then issue big hammer.Otherwise
1107          * it may cause I/O failure as big hammer marks the
1108          * devices as lost kicking of the port_down_timer
1109          * while dpc is stuck for the mailbox to complete.
1110          */
1111         qla2x00_wait_for_loop_ready(vha);
1112         if (vha != base_vha) {
1113                 if (qla2x00_vp_abort_isp(vha))
1114                         goto eh_host_reset_lock;
1115         } else {
1116                 if (IS_QLA82XX(vha->hw)) {
1117                         if (!qla82xx_fcoe_ctx_reset(vha)) {
1118                                 /* Ctx reset success */
1119                                 ret = SUCCESS;
1120                                 goto eh_host_reset_lock;
1121                         }
1122                         /* fall thru if ctx reset failed */
1123                 }
1124                 if (ha->wq)
1125                         flush_workqueue(ha->wq);
1126
1127                 set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1128                 if (ha->isp_ops->abort_isp(base_vha)) {
1129                         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1130                         /* failed. schedule dpc to try */
1131                         set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags);
1132
1133                         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
1134                                 goto eh_host_reset_lock;
1135                 }
1136                 clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1137         }
1138
1139         /* Waiting for command to be returned to OS.*/
1140         if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST) ==
1141                 QLA_SUCCESS)
1142                 ret = SUCCESS;
1143
1144 eh_host_reset_lock:
1145         qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
1146             (ret == FAILED) ? "failed" : "succeded");
1147
1148         return ret;
1149 }
1150
1151 /*
1152 * qla2x00_loop_reset
1153 *      Issue loop reset.
1154 *
1155 * Input:
1156 *      ha = adapter block pointer.
1157 *
1158 * Returns:
1159 *      0 = success
1160 */
1161 int
1162 qla2x00_loop_reset(scsi_qla_host_t *vha)
1163 {
1164         int ret;
1165         struct fc_port *fcport;
1166         struct qla_hw_data *ha = vha->hw;
1167
1168         if (ql2xtargetreset == 1 && ha->flags.enable_target_reset) {
1169                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
1170                         if (fcport->port_type != FCT_TARGET)
1171                                 continue;
1172
1173                         ret = ha->isp_ops->target_reset(fcport, 0, 0);
1174                         if (ret != QLA_SUCCESS) {
1175                                 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1176                                     "target_reset=%d d_id=%x.\n", __func__,
1177                                     vha->host_no, ret, fcport->d_id.b24));
1178                         }
1179                 }
1180         }
1181
1182         if (ha->flags.enable_lip_full_login && !IS_QLA8XXX_TYPE(ha)) {
1183                 ret = qla2x00_full_login_lip(vha);
1184                 if (ret != QLA_SUCCESS) {
1185                         DEBUG2_3(printk("%s(%ld): failed: "
1186                             "full_login_lip=%d.\n", __func__, vha->host_no,
1187                             ret));
1188                 }
1189                 atomic_set(&vha->loop_state, LOOP_DOWN);
1190                 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1191                 qla2x00_mark_all_devices_lost(vha, 0);
1192                 qla2x00_wait_for_loop_ready(vha);
1193         }
1194
1195         if (ha->flags.enable_lip_reset) {
1196                 ret = qla2x00_lip_reset(vha);
1197                 if (ret != QLA_SUCCESS) {
1198                         DEBUG2_3(printk("%s(%ld): failed: "
1199                             "lip_reset=%d.\n", __func__, vha->host_no, ret));
1200                 } else
1201                         qla2x00_wait_for_loop_ready(vha);
1202         }
1203
1204         /* Issue marker command only when we are going to start the I/O */
1205         vha->marker_needed = 1;
1206
1207         return QLA_SUCCESS;
1208 }
1209
1210 void
1211 qla2x00_abort_all_cmds(scsi_qla_host_t *vha, int res)
1212 {
1213         int que, cnt;
1214         unsigned long flags;
1215         srb_t *sp;
1216         struct srb_ctx *ctx;
1217         struct qla_hw_data *ha = vha->hw;
1218         struct req_que *req;
1219
1220         spin_lock_irqsave(&ha->hardware_lock, flags);
1221         for (que = 0; que < ha->max_req_queues; que++) {
1222                 req = ha->req_q_map[que];
1223                 if (!req)
1224                         continue;
1225                 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
1226                         sp = req->outstanding_cmds[cnt];
1227                         if (sp) {
1228                                 req->outstanding_cmds[cnt] = NULL;
1229                                 if (!sp->ctx ||
1230                                         (sp->flags & SRB_FCP_CMND_DMA_VALID) ||
1231                                         IS_PROT_IO(sp)) {
1232                                         sp->cmd->result = res;
1233                                         qla2x00_sp_compl(ha, sp);
1234                                 } else {
1235                                         ctx = sp->ctx;
1236                                         if (ctx->type == SRB_LOGIN_CMD ||
1237                                             ctx->type == SRB_LOGOUT_CMD) {
1238                                                 ctx->u.iocb_cmd->free(sp);
1239                                         } else {
1240                                                 struct fc_bsg_job *bsg_job =
1241                                                     ctx->u.bsg_job;
1242                                                 if (bsg_job->request->msgcode
1243                                                     == FC_BSG_HST_CT)
1244                                                         kfree(sp->fcport);
1245                                                 bsg_job->req->errors = 0;
1246                                                 bsg_job->reply->result = res;
1247                                                 bsg_job->job_done(bsg_job);
1248                                                 kfree(sp->ctx);
1249                                                 mempool_free(sp,
1250                                                         ha->srb_mempool);
1251                                         }
1252                                 }
1253                         }
1254                 }
1255         }
1256         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1257 }
1258
1259 static int
1260 qla2xxx_slave_alloc(struct scsi_device *sdev)
1261 {
1262         struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1263
1264         if (!rport || fc_remote_port_chkready(rport))
1265                 return -ENXIO;
1266
1267         sdev->hostdata = *(fc_port_t **)rport->dd_data;
1268
1269         return 0;
1270 }
1271
1272 static int
1273 qla2xxx_slave_configure(struct scsi_device *sdev)
1274 {
1275         scsi_qla_host_t *vha = shost_priv(sdev->host);
1276         struct req_que *req = vha->req;
1277
1278         if (sdev->tagged_supported)
1279                 scsi_activate_tcq(sdev, req->max_q_depth);
1280         else
1281                 scsi_deactivate_tcq(sdev, req->max_q_depth);
1282         return 0;
1283 }
1284
1285 static void
1286 qla2xxx_slave_destroy(struct scsi_device *sdev)
1287 {
1288         sdev->hostdata = NULL;
1289 }
1290
1291 static void qla2x00_handle_queue_full(struct scsi_device *sdev, int qdepth)
1292 {
1293         fc_port_t *fcport = (struct fc_port *) sdev->hostdata;
1294
1295         if (!scsi_track_queue_full(sdev, qdepth))
1296                 return;
1297
1298         DEBUG2(qla_printk(KERN_INFO, fcport->vha->hw,
1299                 "scsi(%ld:%d:%d:%d): Queue depth adjusted-down to %d.\n",
1300                 fcport->vha->host_no, sdev->channel, sdev->id, sdev->lun,
1301                 sdev->queue_depth));
1302 }
1303
1304 static void qla2x00_adjust_sdev_qdepth_up(struct scsi_device *sdev, int qdepth)
1305 {
1306         fc_port_t *fcport = sdev->hostdata;
1307         struct scsi_qla_host *vha = fcport->vha;
1308         struct qla_hw_data *ha = vha->hw;
1309         struct req_que *req = NULL;
1310
1311         req = vha->req;
1312         if (!req)
1313                 return;
1314
1315         if (req->max_q_depth <= sdev->queue_depth || req->max_q_depth < qdepth)
1316                 return;
1317
1318         if (sdev->ordered_tags)
1319                 scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, qdepth);
1320         else
1321                 scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, qdepth);
1322
1323         DEBUG2(qla_printk(KERN_INFO, ha,
1324                "scsi(%ld:%d:%d:%d): Queue depth adjusted-up to %d.\n",
1325                fcport->vha->host_no, sdev->channel, sdev->id, sdev->lun,
1326                sdev->queue_depth));
1327 }
1328
1329 static int
1330 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
1331 {
1332         switch (reason) {
1333         case SCSI_QDEPTH_DEFAULT:
1334                 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1335                 break;
1336         case SCSI_QDEPTH_QFULL:
1337                 qla2x00_handle_queue_full(sdev, qdepth);
1338                 break;
1339         case SCSI_QDEPTH_RAMP_UP:
1340                 qla2x00_adjust_sdev_qdepth_up(sdev, qdepth);
1341                 break;
1342         default:
1343                 return -EOPNOTSUPP;
1344         }
1345
1346         return sdev->queue_depth;
1347 }
1348
1349 static int
1350 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1351 {
1352         if (sdev->tagged_supported) {
1353                 scsi_set_tag_type(sdev, tag_type);
1354                 if (tag_type)
1355                         scsi_activate_tcq(sdev, sdev->queue_depth);
1356                 else
1357                         scsi_deactivate_tcq(sdev, sdev->queue_depth);
1358         } else
1359                 tag_type = 0;
1360
1361         return tag_type;
1362 }
1363
1364 /**
1365  * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1366  * @ha: HA context
1367  *
1368  * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1369  * supported addressing method.
1370  */
1371 static void
1372 qla2x00_config_dma_addressing(struct qla_hw_data *ha)
1373 {
1374         /* Assume a 32bit DMA mask. */
1375         ha->flags.enable_64bit_addressing = 0;
1376
1377         if (!dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(64))) {
1378                 /* Any upper-dword bits set? */
1379                 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1380                     !pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) {
1381                         /* Ok, a 64bit DMA mask is applicable. */
1382                         ha->flags.enable_64bit_addressing = 1;
1383                         ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1384                         ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1385                         return;
1386                 }
1387         }
1388
1389         dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(32));
1390         pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(32));
1391 }
1392
1393 static void
1394 qla2x00_enable_intrs(struct qla_hw_data *ha)
1395 {
1396         unsigned long flags = 0;
1397         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1398
1399         spin_lock_irqsave(&ha->hardware_lock, flags);
1400         ha->interrupts_on = 1;
1401         /* enable risc and host interrupts */
1402         WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1403         RD_REG_WORD(&reg->ictrl);
1404         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1405
1406 }
1407
1408 static void
1409 qla2x00_disable_intrs(struct qla_hw_data *ha)
1410 {
1411         unsigned long flags = 0;
1412         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1413
1414         spin_lock_irqsave(&ha->hardware_lock, flags);
1415         ha->interrupts_on = 0;
1416         /* disable risc and host interrupts */
1417         WRT_REG_WORD(&reg->ictrl, 0);
1418         RD_REG_WORD(&reg->ictrl);
1419         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1420 }
1421
1422 static void
1423 qla24xx_enable_intrs(struct qla_hw_data *ha)
1424 {
1425         unsigned long flags = 0;
1426         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1427
1428         spin_lock_irqsave(&ha->hardware_lock, flags);
1429         ha->interrupts_on = 1;
1430         WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1431         RD_REG_DWORD(&reg->ictrl);
1432         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1433 }
1434
1435 static void
1436 qla24xx_disable_intrs(struct qla_hw_data *ha)
1437 {
1438         unsigned long flags = 0;
1439         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1440
1441         if (IS_NOPOLLING_TYPE(ha))
1442                 return;
1443         spin_lock_irqsave(&ha->hardware_lock, flags);
1444         ha->interrupts_on = 0;
1445         WRT_REG_DWORD(&reg->ictrl, 0);
1446         RD_REG_DWORD(&reg->ictrl);
1447         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1448 }
1449
1450 static struct isp_operations qla2100_isp_ops = {
1451         .pci_config             = qla2100_pci_config,
1452         .reset_chip             = qla2x00_reset_chip,
1453         .chip_diag              = qla2x00_chip_diag,
1454         .config_rings           = qla2x00_config_rings,
1455         .reset_adapter          = qla2x00_reset_adapter,
1456         .nvram_config           = qla2x00_nvram_config,
1457         .update_fw_options      = qla2x00_update_fw_options,
1458         .load_risc              = qla2x00_load_risc,
1459         .pci_info_str           = qla2x00_pci_info_str,
1460         .fw_version_str         = qla2x00_fw_version_str,
1461         .intr_handler           = qla2100_intr_handler,
1462         .enable_intrs           = qla2x00_enable_intrs,
1463         .disable_intrs          = qla2x00_disable_intrs,
1464         .abort_command          = qla2x00_abort_command,
1465         .target_reset           = qla2x00_abort_target,
1466         .lun_reset              = qla2x00_lun_reset,
1467         .fabric_login           = qla2x00_login_fabric,
1468         .fabric_logout          = qla2x00_fabric_logout,
1469         .calc_req_entries       = qla2x00_calc_iocbs_32,
1470         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1471         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1472         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1473         .read_nvram             = qla2x00_read_nvram_data,
1474         .write_nvram            = qla2x00_write_nvram_data,
1475         .fw_dump                = qla2100_fw_dump,
1476         .beacon_on              = NULL,
1477         .beacon_off             = NULL,
1478         .beacon_blink           = NULL,
1479         .read_optrom            = qla2x00_read_optrom_data,
1480         .write_optrom           = qla2x00_write_optrom_data,
1481         .get_flash_version      = qla2x00_get_flash_version,
1482         .start_scsi             = qla2x00_start_scsi,
1483         .abort_isp              = qla2x00_abort_isp,
1484 };
1485
1486 static struct isp_operations qla2300_isp_ops = {
1487         .pci_config             = qla2300_pci_config,
1488         .reset_chip             = qla2x00_reset_chip,
1489         .chip_diag              = qla2x00_chip_diag,
1490         .config_rings           = qla2x00_config_rings,
1491         .reset_adapter          = qla2x00_reset_adapter,
1492         .nvram_config           = qla2x00_nvram_config,
1493         .update_fw_options      = qla2x00_update_fw_options,
1494         .load_risc              = qla2x00_load_risc,
1495         .pci_info_str           = qla2x00_pci_info_str,
1496         .fw_version_str         = qla2x00_fw_version_str,
1497         .intr_handler           = qla2300_intr_handler,
1498         .enable_intrs           = qla2x00_enable_intrs,
1499         .disable_intrs          = qla2x00_disable_intrs,
1500         .abort_command          = qla2x00_abort_command,
1501         .target_reset           = qla2x00_abort_target,
1502         .lun_reset              = qla2x00_lun_reset,
1503         .fabric_login           = qla2x00_login_fabric,
1504         .fabric_logout          = qla2x00_fabric_logout,
1505         .calc_req_entries       = qla2x00_calc_iocbs_32,
1506         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1507         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1508         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1509         .read_nvram             = qla2x00_read_nvram_data,
1510         .write_nvram            = qla2x00_write_nvram_data,
1511         .fw_dump                = qla2300_fw_dump,
1512         .beacon_on              = qla2x00_beacon_on,
1513         .beacon_off             = qla2x00_beacon_off,
1514         .beacon_blink           = qla2x00_beacon_blink,
1515         .read_optrom            = qla2x00_read_optrom_data,
1516         .write_optrom           = qla2x00_write_optrom_data,
1517         .get_flash_version      = qla2x00_get_flash_version,
1518         .start_scsi             = qla2x00_start_scsi,
1519         .abort_isp              = qla2x00_abort_isp,
1520 };
1521
1522 static struct isp_operations qla24xx_isp_ops = {
1523         .pci_config             = qla24xx_pci_config,
1524         .reset_chip             = qla24xx_reset_chip,
1525         .chip_diag              = qla24xx_chip_diag,
1526         .config_rings           = qla24xx_config_rings,
1527         .reset_adapter          = qla24xx_reset_adapter,
1528         .nvram_config           = qla24xx_nvram_config,
1529         .update_fw_options      = qla24xx_update_fw_options,
1530         .load_risc              = qla24xx_load_risc,
1531         .pci_info_str           = qla24xx_pci_info_str,
1532         .fw_version_str         = qla24xx_fw_version_str,
1533         .intr_handler           = qla24xx_intr_handler,
1534         .enable_intrs           = qla24xx_enable_intrs,
1535         .disable_intrs          = qla24xx_disable_intrs,
1536         .abort_command          = qla24xx_abort_command,
1537         .target_reset           = qla24xx_abort_target,
1538         .lun_reset              = qla24xx_lun_reset,
1539         .fabric_login           = qla24xx_login_fabric,
1540         .fabric_logout          = qla24xx_fabric_logout,
1541         .calc_req_entries       = NULL,
1542         .build_iocbs            = NULL,
1543         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1544         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1545         .read_nvram             = qla24xx_read_nvram_data,
1546         .write_nvram            = qla24xx_write_nvram_data,
1547         .fw_dump                = qla24xx_fw_dump,
1548         .beacon_on              = qla24xx_beacon_on,
1549         .beacon_off             = qla24xx_beacon_off,
1550         .beacon_blink           = qla24xx_beacon_blink,
1551         .read_optrom            = qla24xx_read_optrom_data,
1552         .write_optrom           = qla24xx_write_optrom_data,
1553         .get_flash_version      = qla24xx_get_flash_version,
1554         .start_scsi             = qla24xx_start_scsi,
1555         .abort_isp              = qla2x00_abort_isp,
1556 };
1557
1558 static struct isp_operations qla25xx_isp_ops = {
1559         .pci_config             = qla25xx_pci_config,
1560         .reset_chip             = qla24xx_reset_chip,
1561         .chip_diag              = qla24xx_chip_diag,
1562         .config_rings           = qla24xx_config_rings,
1563         .reset_adapter          = qla24xx_reset_adapter,
1564         .nvram_config           = qla24xx_nvram_config,
1565         .update_fw_options      = qla24xx_update_fw_options,
1566         .load_risc              = qla24xx_load_risc,
1567         .pci_info_str           = qla24xx_pci_info_str,
1568         .fw_version_str         = qla24xx_fw_version_str,
1569         .intr_handler           = qla24xx_intr_handler,
1570         .enable_intrs           = qla24xx_enable_intrs,
1571         .disable_intrs          = qla24xx_disable_intrs,
1572         .abort_command          = qla24xx_abort_command,
1573         .target_reset           = qla24xx_abort_target,
1574         .lun_reset              = qla24xx_lun_reset,
1575         .fabric_login           = qla24xx_login_fabric,
1576         .fabric_logout          = qla24xx_fabric_logout,
1577         .calc_req_entries       = NULL,
1578         .build_iocbs            = NULL,
1579         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1580         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1581         .read_nvram             = qla25xx_read_nvram_data,
1582         .write_nvram            = qla25xx_write_nvram_data,
1583         .fw_dump                = qla25xx_fw_dump,
1584         .beacon_on              = qla24xx_beacon_on,
1585         .beacon_off             = qla24xx_beacon_off,
1586         .beacon_blink           = qla24xx_beacon_blink,
1587         .read_optrom            = qla25xx_read_optrom_data,
1588         .write_optrom           = qla24xx_write_optrom_data,
1589         .get_flash_version      = qla24xx_get_flash_version,
1590         .start_scsi             = qla24xx_dif_start_scsi,
1591         .abort_isp              = qla2x00_abort_isp,
1592 };
1593
1594 static struct isp_operations qla81xx_isp_ops = {
1595         .pci_config             = qla25xx_pci_config,
1596         .reset_chip             = qla24xx_reset_chip,
1597         .chip_diag              = qla24xx_chip_diag,
1598         .config_rings           = qla24xx_config_rings,
1599         .reset_adapter          = qla24xx_reset_adapter,
1600         .nvram_config           = qla81xx_nvram_config,
1601         .update_fw_options      = qla81xx_update_fw_options,
1602         .load_risc              = qla81xx_load_risc,
1603         .pci_info_str           = qla24xx_pci_info_str,
1604         .fw_version_str         = qla24xx_fw_version_str,
1605         .intr_handler           = qla24xx_intr_handler,
1606         .enable_intrs           = qla24xx_enable_intrs,
1607         .disable_intrs          = qla24xx_disable_intrs,
1608         .abort_command          = qla24xx_abort_command,
1609         .target_reset           = qla24xx_abort_target,
1610         .lun_reset              = qla24xx_lun_reset,
1611         .fabric_login           = qla24xx_login_fabric,
1612         .fabric_logout          = qla24xx_fabric_logout,
1613         .calc_req_entries       = NULL,
1614         .build_iocbs            = NULL,
1615         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1616         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1617         .read_nvram             = NULL,
1618         .write_nvram            = NULL,
1619         .fw_dump                = qla81xx_fw_dump,
1620         .beacon_on              = qla24xx_beacon_on,
1621         .beacon_off             = qla24xx_beacon_off,
1622         .beacon_blink           = qla24xx_beacon_blink,
1623         .read_optrom            = qla25xx_read_optrom_data,
1624         .write_optrom           = qla24xx_write_optrom_data,
1625         .get_flash_version      = qla24xx_get_flash_version,
1626         .start_scsi             = qla24xx_dif_start_scsi,
1627         .abort_isp              = qla2x00_abort_isp,
1628 };
1629
1630 static struct isp_operations qla82xx_isp_ops = {
1631         .pci_config             = qla82xx_pci_config,
1632         .reset_chip             = qla82xx_reset_chip,
1633         .chip_diag              = qla24xx_chip_diag,
1634         .config_rings           = qla82xx_config_rings,
1635         .reset_adapter          = qla24xx_reset_adapter,
1636         .nvram_config           = qla81xx_nvram_config,
1637         .update_fw_options      = qla24xx_update_fw_options,
1638         .load_risc              = qla82xx_load_risc,
1639         .pci_info_str           = qla82xx_pci_info_str,
1640         .fw_version_str         = qla24xx_fw_version_str,
1641         .intr_handler           = qla82xx_intr_handler,
1642         .enable_intrs           = qla82xx_enable_intrs,
1643         .disable_intrs          = qla82xx_disable_intrs,
1644         .abort_command          = qla24xx_abort_command,
1645         .target_reset           = qla24xx_abort_target,
1646         .lun_reset              = qla24xx_lun_reset,
1647         .fabric_login           = qla24xx_login_fabric,
1648         .fabric_logout          = qla24xx_fabric_logout,
1649         .calc_req_entries       = NULL,
1650         .build_iocbs            = NULL,
1651         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1652         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1653         .read_nvram             = qla24xx_read_nvram_data,
1654         .write_nvram            = qla24xx_write_nvram_data,
1655         .fw_dump                = qla24xx_fw_dump,
1656         .beacon_on              = qla24xx_beacon_on,
1657         .beacon_off             = qla24xx_beacon_off,
1658         .beacon_blink           = qla24xx_beacon_blink,
1659         .read_optrom            = qla82xx_read_optrom_data,
1660         .write_optrom           = qla82xx_write_optrom_data,
1661         .get_flash_version      = qla24xx_get_flash_version,
1662         .start_scsi             = qla82xx_start_scsi,
1663         .abort_isp              = qla82xx_abort_isp,
1664 };
1665
1666 static inline void
1667 qla2x00_set_isp_flags(struct qla_hw_data *ha)
1668 {
1669         ha->device_type = DT_EXTENDED_IDS;
1670         switch (ha->pdev->device) {
1671         case PCI_DEVICE_ID_QLOGIC_ISP2100:
1672                 ha->device_type |= DT_ISP2100;
1673                 ha->device_type &= ~DT_EXTENDED_IDS;
1674                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1675                 break;
1676         case PCI_DEVICE_ID_QLOGIC_ISP2200:
1677                 ha->device_type |= DT_ISP2200;
1678                 ha->device_type &= ~DT_EXTENDED_IDS;
1679                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1680                 break;
1681         case PCI_DEVICE_ID_QLOGIC_ISP2300:
1682                 ha->device_type |= DT_ISP2300;
1683                 ha->device_type |= DT_ZIO_SUPPORTED;
1684                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1685                 break;
1686         case PCI_DEVICE_ID_QLOGIC_ISP2312:
1687                 ha->device_type |= DT_ISP2312;
1688                 ha->device_type |= DT_ZIO_SUPPORTED;
1689                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1690                 break;
1691         case PCI_DEVICE_ID_QLOGIC_ISP2322:
1692                 ha->device_type |= DT_ISP2322;
1693                 ha->device_type |= DT_ZIO_SUPPORTED;
1694                 if (ha->pdev->subsystem_vendor == 0x1028 &&
1695                     ha->pdev->subsystem_device == 0x0170)
1696                         ha->device_type |= DT_OEM_001;
1697                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1698                 break;
1699         case PCI_DEVICE_ID_QLOGIC_ISP6312:
1700                 ha->device_type |= DT_ISP6312;
1701                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1702                 break;
1703         case PCI_DEVICE_ID_QLOGIC_ISP6322:
1704                 ha->device_type |= DT_ISP6322;
1705                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1706                 break;
1707         case PCI_DEVICE_ID_QLOGIC_ISP2422:
1708                 ha->device_type |= DT_ISP2422;
1709                 ha->device_type |= DT_ZIO_SUPPORTED;
1710                 ha->device_type |= DT_FWI2;
1711                 ha->device_type |= DT_IIDMA;
1712                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1713                 break;
1714         case PCI_DEVICE_ID_QLOGIC_ISP2432:
1715                 ha->device_type |= DT_ISP2432;
1716                 ha->device_type |= DT_ZIO_SUPPORTED;
1717                 ha->device_type |= DT_FWI2;
1718                 ha->device_type |= DT_IIDMA;
1719                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1720                 break;
1721         case PCI_DEVICE_ID_QLOGIC_ISP8432:
1722                 ha->device_type |= DT_ISP8432;
1723                 ha->device_type |= DT_ZIO_SUPPORTED;
1724                 ha->device_type |= DT_FWI2;
1725                 ha->device_type |= DT_IIDMA;
1726                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1727                 break;
1728         case PCI_DEVICE_ID_QLOGIC_ISP5422:
1729                 ha->device_type |= DT_ISP5422;
1730                 ha->device_type |= DT_FWI2;
1731                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1732                 break;
1733         case PCI_DEVICE_ID_QLOGIC_ISP5432:
1734                 ha->device_type |= DT_ISP5432;
1735                 ha->device_type |= DT_FWI2;
1736                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1737                 break;
1738         case PCI_DEVICE_ID_QLOGIC_ISP2532:
1739                 ha->device_type |= DT_ISP2532;
1740                 ha->device_type |= DT_ZIO_SUPPORTED;
1741                 ha->device_type |= DT_FWI2;
1742                 ha->device_type |= DT_IIDMA;
1743                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1744                 break;
1745         case PCI_DEVICE_ID_QLOGIC_ISP8001:
1746                 ha->device_type |= DT_ISP8001;
1747                 ha->device_type |= DT_ZIO_SUPPORTED;
1748                 ha->device_type |= DT_FWI2;
1749                 ha->device_type |= DT_IIDMA;
1750                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1751                 break;
1752         case PCI_DEVICE_ID_QLOGIC_ISP8021:
1753                 ha->device_type |= DT_ISP8021;
1754                 ha->device_type |= DT_ZIO_SUPPORTED;
1755                 ha->device_type |= DT_FWI2;
1756                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1757                 /* Initialize 82XX ISP flags */
1758                 qla82xx_init_flags(ha);
1759                 break;
1760         }
1761
1762         if (IS_QLA82XX(ha))
1763                 ha->port_no = !(ha->portnum & 1);
1764         else
1765                 /* Get adapter physical port no from interrupt pin register. */
1766                 pci_read_config_byte(ha->pdev, PCI_INTERRUPT_PIN, &ha->port_no);
1767
1768         if (ha->port_no & 1)
1769                 ha->flags.port0 = 1;
1770         else
1771                 ha->flags.port0 = 0;
1772 }
1773
1774 static int
1775 qla2x00_iospace_config(struct qla_hw_data *ha)
1776 {
1777         resource_size_t pio;
1778         uint16_t msix;
1779         int cpus;
1780
1781         if (IS_QLA82XX(ha))
1782                 return qla82xx_iospace_config(ha);
1783
1784         if (pci_request_selected_regions(ha->pdev, ha->bars,
1785             QLA2XXX_DRIVER_NAME)) {
1786                 qla_printk(KERN_WARNING, ha,
1787                     "Failed to reserve PIO/MMIO regions (%s)\n",
1788                     pci_name(ha->pdev));
1789
1790                 goto iospace_error_exit;
1791         }
1792         if (!(ha->bars & 1))
1793                 goto skip_pio;
1794
1795         /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1796         pio = pci_resource_start(ha->pdev, 0);
1797         if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
1798                 if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
1799                         qla_printk(KERN_WARNING, ha,
1800                             "Invalid PCI I/O region size (%s)...\n",
1801                                 pci_name(ha->pdev));
1802                         pio = 0;
1803                 }
1804         } else {
1805                 qla_printk(KERN_WARNING, ha,
1806                     "region #0 not a PIO resource (%s)...\n",
1807                     pci_name(ha->pdev));
1808                 pio = 0;
1809         }
1810         ha->pio_address = pio;
1811
1812 skip_pio:
1813         /* Use MMIO operations for all accesses. */
1814         if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
1815                 qla_printk(KERN_ERR, ha,
1816                     "region #1 not an MMIO resource (%s), aborting\n",
1817                     pci_name(ha->pdev));
1818                 goto iospace_error_exit;
1819         }
1820         if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
1821                 qla_printk(KERN_ERR, ha,
1822                     "Invalid PCI mem region size (%s), aborting\n",
1823                         pci_name(ha->pdev));
1824                 goto iospace_error_exit;
1825         }
1826
1827         ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
1828         if (!ha->iobase) {
1829                 qla_printk(KERN_ERR, ha,
1830                     "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1831
1832                 goto iospace_error_exit;
1833         }
1834
1835         /* Determine queue resources */
1836         ha->max_req_queues = ha->max_rsp_queues = 1;
1837         if ((ql2xmaxqueues <= 1 && !ql2xmultique_tag) ||
1838                 (ql2xmaxqueues > 1 && ql2xmultique_tag) ||
1839                 (!IS_QLA25XX(ha) && !IS_QLA81XX(ha)))
1840                 goto mqiobase_exit;
1841
1842         ha->mqiobase = ioremap(pci_resource_start(ha->pdev, 3),
1843                         pci_resource_len(ha->pdev, 3));
1844         if (ha->mqiobase) {
1845                 /* Read MSIX vector size of the board */
1846                 pci_read_config_word(ha->pdev, QLA_PCI_MSIX_CONTROL, &msix);
1847                 ha->msix_count = msix;
1848                 /* Max queues are bounded by available msix vectors */
1849                 /* queue 0 uses two msix vectors */
1850                 if (ql2xmultique_tag) {
1851                         cpus = num_online_cpus();
1852                         ha->max_rsp_queues = (ha->msix_count - 1 > cpus) ?
1853                                 (cpus + 1) : (ha->msix_count - 1);
1854                         ha->max_req_queues = 2;
1855                 } else if (ql2xmaxqueues > 1) {
1856                         ha->max_req_queues = ql2xmaxqueues > QLA_MQ_SIZE ?
1857                                                 QLA_MQ_SIZE : ql2xmaxqueues;
1858                         DEBUG2(qla_printk(KERN_INFO, ha, "QoS mode set, max no"
1859                         " of request queues:%d\n", ha->max_req_queues));
1860                 }
1861                 qla_printk(KERN_INFO, ha,
1862                         "MSI-X vector count: %d\n", msix);
1863         } else
1864                 qla_printk(KERN_INFO, ha, "BAR 3 not enabled\n");
1865
1866 mqiobase_exit:
1867         ha->msix_count = ha->max_rsp_queues + 1;
1868         return (0);
1869
1870 iospace_error_exit:
1871         return (-ENOMEM);
1872 }
1873
1874 static void
1875 qla2xxx_scan_start(struct Scsi_Host *shost)
1876 {
1877         scsi_qla_host_t *vha = shost_priv(shost);
1878
1879         if (vha->hw->flags.running_gold_fw)
1880                 return;
1881
1882         set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1883         set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1884         set_bit(RSCN_UPDATE, &vha->dpc_flags);
1885         set_bit(NPIV_CONFIG_NEEDED, &vha->dpc_flags);
1886 }
1887
1888 static int
1889 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
1890 {
1891         scsi_qla_host_t *vha = shost_priv(shost);
1892
1893         if (!vha->host)
1894                 return 1;
1895         if (time > vha->hw->loop_reset_delay * HZ)
1896                 return 1;
1897
1898         return atomic_read(&vha->loop_state) == LOOP_READY;
1899 }
1900
1901 /*
1902  * PCI driver interface
1903  */
1904 static int __devinit
1905 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1906 {
1907         int     ret = -ENODEV;
1908         struct Scsi_Host *host;
1909         scsi_qla_host_t *base_vha = NULL;
1910         struct qla_hw_data *ha;
1911         char pci_info[30];
1912         char fw_str[30];
1913         struct scsi_host_template *sht;
1914         int bars, max_id, mem_only = 0;
1915         uint16_t req_length = 0, rsp_length = 0;
1916         struct req_que *req = NULL;
1917         struct rsp_que *rsp = NULL;
1918
1919         bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
1920         sht = &qla2xxx_driver_template;
1921         if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1922             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
1923             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8432 ||
1924             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
1925             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
1926             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532 ||
1927             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8001 ||
1928             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8021) {
1929                 bars = pci_select_bars(pdev, IORESOURCE_MEM);
1930                 mem_only = 1;
1931         }
1932
1933         if (mem_only) {
1934                 if (pci_enable_device_mem(pdev))
1935                         goto probe_out;
1936         } else {
1937                 if (pci_enable_device(pdev))
1938                         goto probe_out;
1939         }
1940
1941         /* This may fail but that's ok */
1942         pci_enable_pcie_error_reporting(pdev);
1943
1944         ha = kzalloc(sizeof(struct qla_hw_data), GFP_KERNEL);
1945         if (!ha) {
1946                 DEBUG(printk("Unable to allocate memory for ha\n"));
1947                 goto probe_out;
1948         }
1949         ha->pdev = pdev;
1950
1951         /* Clear our data area */
1952         ha->bars = bars;
1953         ha->mem_only = mem_only;
1954         spin_lock_init(&ha->hardware_lock);
1955         spin_lock_init(&ha->vport_slock);
1956
1957         /* Set ISP-type information. */
1958         qla2x00_set_isp_flags(ha);
1959
1960         /* Set EEH reset type to fundamental if required by hba */
1961         if ( IS_QLA24XX(ha) || IS_QLA25XX(ha) || IS_QLA81XX(ha)) {
1962                 pdev->needs_freset = 1;
1963         }
1964
1965         /* Configure PCI I/O space */
1966         ret = qla2x00_iospace_config(ha);
1967         if (ret)
1968                 goto probe_hw_failed;
1969
1970         qla_printk(KERN_INFO, ha,
1971             "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1972             ha->iobase);
1973
1974         ha->prev_topology = 0;
1975         ha->init_cb_size = sizeof(init_cb_t);
1976         ha->link_data_rate = PORT_SPEED_UNKNOWN;
1977         ha->optrom_size = OPTROM_SIZE_2300;
1978
1979         /* Assign ISP specific operations. */
1980         max_id = MAX_TARGETS_2200;
1981         if (IS_QLA2100(ha)) {
1982                 max_id = MAX_TARGETS_2100;
1983                 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1984                 req_length = REQUEST_ENTRY_CNT_2100;
1985                 rsp_length = RESPONSE_ENTRY_CNT_2100;
1986                 ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
1987                 ha->gid_list_info_size = 4;
1988                 ha->flash_conf_off = ~0;
1989                 ha->flash_data_off = ~0;
1990                 ha->nvram_conf_off = ~0;
1991                 ha->nvram_data_off = ~0;
1992                 ha->isp_ops = &qla2100_isp_ops;
1993         } else if (IS_QLA2200(ha)) {
1994                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1995                 req_length = REQUEST_ENTRY_CNT_2200;
1996                 rsp_length = RESPONSE_ENTRY_CNT_2100;
1997                 ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
1998                 ha->gid_list_info_size = 4;
1999                 ha->flash_conf_off = ~0;
2000                 ha->flash_data_off = ~0;
2001                 ha->nvram_conf_off = ~0;
2002                 ha->nvram_data_off = ~0;
2003                 ha->isp_ops = &qla2100_isp_ops;
2004         } else if (IS_QLA23XX(ha)) {
2005                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2006                 req_length = REQUEST_ENTRY_CNT_2200;
2007                 rsp_length = RESPONSE_ENTRY_CNT_2300;
2008                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2009                 ha->gid_list_info_size = 6;
2010                 if (IS_QLA2322(ha) || IS_QLA6322(ha))
2011                         ha->optrom_size = OPTROM_SIZE_2322;
2012                 ha->flash_conf_off = ~0;
2013                 ha->flash_data_off = ~0;
2014                 ha->nvram_conf_off = ~0;
2015                 ha->nvram_data_off = ~0;
2016                 ha->isp_ops = &qla2300_isp_ops;
2017         } else if (IS_QLA24XX_TYPE(ha)) {
2018                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2019                 req_length = REQUEST_ENTRY_CNT_24XX;
2020                 rsp_length = RESPONSE_ENTRY_CNT_2300;
2021                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2022                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
2023                 ha->gid_list_info_size = 8;
2024                 ha->optrom_size = OPTROM_SIZE_24XX;
2025                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA24XX;
2026                 ha->isp_ops = &qla24xx_isp_ops;
2027                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2028                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2029                 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2030                 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2031         } else if (IS_QLA25XX(ha)) {
2032                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2033                 req_length = REQUEST_ENTRY_CNT_24XX;
2034                 rsp_length = RESPONSE_ENTRY_CNT_2300;
2035                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2036                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
2037                 ha->gid_list_info_size = 8;
2038                 ha->optrom_size = OPTROM_SIZE_25XX;
2039                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2040                 ha->isp_ops = &qla25xx_isp_ops;
2041                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2042                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2043                 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2044                 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2045         } else if (IS_QLA81XX(ha)) {
2046                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2047                 req_length = REQUEST_ENTRY_CNT_24XX;
2048                 rsp_length = RESPONSE_ENTRY_CNT_2300;
2049                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2050                 ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
2051                 ha->gid_list_info_size = 8;
2052                 ha->optrom_size = OPTROM_SIZE_81XX;
2053                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2054                 ha->isp_ops = &qla81xx_isp_ops;
2055                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_81XX;
2056                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA_81XX;
2057                 ha->nvram_conf_off = ~0;
2058                 ha->nvram_data_off = ~0;
2059         } else if (IS_QLA82XX(ha)) {
2060                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2061                 req_length = REQUEST_ENTRY_CNT_82XX;
2062                 rsp_length = RESPONSE_ENTRY_CNT_82XX;
2063                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2064                 ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
2065                 ha->gid_list_info_size = 8;
2066                 ha->optrom_size = OPTROM_SIZE_82XX;
2067                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2068                 ha->isp_ops = &qla82xx_isp_ops;
2069                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2070                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2071                 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2072                 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2073         }
2074
2075         mutex_init(&ha->vport_lock);
2076         init_completion(&ha->mbx_cmd_comp);
2077         complete(&ha->mbx_cmd_comp);
2078         init_completion(&ha->mbx_intr_comp);
2079         init_completion(&ha->dcbx_comp);
2080
2081         set_bit(0, (unsigned long *) ha->vp_idx_map);
2082
2083         qla2x00_config_dma_addressing(ha);
2084         ret = qla2x00_mem_alloc(ha, req_length, rsp_length, &req, &rsp);
2085         if (!ret) {
2086                 qla_printk(KERN_WARNING, ha,
2087                     "[ERROR] Failed to allocate memory for adapter\n");
2088
2089                 goto probe_hw_failed;
2090         }
2091
2092         req->max_q_depth = MAX_Q_DEPTH;
2093         if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
2094                 req->max_q_depth = ql2xmaxqdepth;
2095
2096
2097         base_vha = qla2x00_create_host(sht, ha);
2098         if (!base_vha) {
2099                 qla_printk(KERN_WARNING, ha,
2100                     "[ERROR] Failed to allocate memory for scsi_host\n");
2101
2102                 ret = -ENOMEM;
2103                 qla2x00_mem_free(ha);
2104                 qla2x00_free_req_que(ha, req);
2105                 qla2x00_free_rsp_que(ha, rsp);
2106                 goto probe_hw_failed;
2107         }
2108
2109         pci_set_drvdata(pdev, base_vha);
2110
2111         host = base_vha->host;
2112         base_vha->req = req;
2113         host->can_queue = req->length + 128;
2114         if (IS_QLA2XXX_MIDTYPE(ha))
2115                 base_vha->mgmt_svr_loop_id = 10 + base_vha->vp_idx;
2116         else
2117                 base_vha->mgmt_svr_loop_id = MANAGEMENT_SERVER +
2118                                                 base_vha->vp_idx;
2119
2120         /* Set the SG table size based on ISP type */
2121         if (!IS_FWI2_CAPABLE(ha)) {
2122                 if (IS_QLA2100(ha))
2123                         host->sg_tablesize = 32;
2124         } else {
2125                 if (!IS_QLA82XX(ha))
2126                         host->sg_tablesize = QLA_SG_ALL;
2127         }
2128
2129         host->max_id = max_id;
2130         host->this_id = 255;
2131         host->cmd_per_lun = 3;
2132         host->unique_id = host->host_no;
2133         if ((IS_QLA25XX(ha) || IS_QLA81XX(ha)) && ql2xenabledif)
2134                 host->max_cmd_len = 32;
2135         else
2136                 host->max_cmd_len = MAX_CMDSZ;
2137         host->max_channel = MAX_BUSES - 1;
2138         host->max_lun = MAX_LUNS;
2139         host->transportt = qla2xxx_transport_template;
2140         sht->vendor_id = (SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC);
2141
2142         /* Set up the irqs */
2143         ret = qla2x00_request_irqs(ha, rsp);
2144         if (ret)
2145                 goto probe_init_failed;
2146
2147         pci_save_state(pdev);
2148
2149         /* Alloc arrays of request and response ring ptrs */
2150 que_init:
2151         if (!qla2x00_alloc_queues(ha)) {
2152                 qla_printk(KERN_WARNING, ha,
2153                 "[ERROR] Failed to allocate memory for queue"
2154                 " pointers\n");
2155                 goto probe_init_failed;
2156         }
2157
2158         ha->rsp_q_map[0] = rsp;
2159         ha->req_q_map[0] = req;
2160         rsp->req = req;
2161         req->rsp = rsp;
2162         set_bit(0, ha->req_qid_map);
2163         set_bit(0, ha->rsp_qid_map);
2164         /* FWI2-capable only. */
2165         req->req_q_in = &ha->iobase->isp24.req_q_in;
2166         req->req_q_out = &ha->iobase->isp24.req_q_out;
2167         rsp->rsp_q_in = &ha->iobase->isp24.rsp_q_in;
2168         rsp->rsp_q_out = &ha->iobase->isp24.rsp_q_out;
2169         if (ha->mqenable) {
2170                 req->req_q_in = &ha->mqiobase->isp25mq.req_q_in;
2171                 req->req_q_out = &ha->mqiobase->isp25mq.req_q_out;
2172                 rsp->rsp_q_in = &ha->mqiobase->isp25mq.rsp_q_in;
2173                 rsp->rsp_q_out =  &ha->mqiobase->isp25mq.rsp_q_out;
2174         }
2175
2176         if (IS_QLA82XX(ha)) {
2177                 req->req_q_out = &ha->iobase->isp82.req_q_out[0];
2178                 rsp->rsp_q_in = &ha->iobase->isp82.rsp_q_in[0];
2179                 rsp->rsp_q_out = &ha->iobase->isp82.rsp_q_out[0];
2180         }
2181
2182         if (qla2x00_initialize_adapter(base_vha)) {
2183                 qla_printk(KERN_WARNING, ha,
2184                     "Failed to initialize adapter\n");
2185
2186                 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
2187                     "Adapter flags %x.\n",
2188                     base_vha->host_no, base_vha->device_flags));
2189
2190                 if (IS_QLA82XX(ha)) {
2191                         qla82xx_idc_lock(ha);
2192                         qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
2193                                 QLA82XX_DEV_FAILED);
2194                         qla82xx_idc_unlock(ha);
2195                         qla_printk(KERN_INFO, ha, "HW State: FAILED\n");
2196                 }
2197
2198                 ret = -ENODEV;
2199                 goto probe_failed;
2200         }
2201
2202         if (ha->mqenable) {
2203                 if (qla25xx_setup_mode(base_vha)) {
2204                         qla_printk(KERN_WARNING, ha,
2205                                 "Can't create queues, falling back to single"
2206                                 " queue mode\n");
2207                         goto que_init;
2208                 }
2209         }
2210
2211         if (ha->flags.running_gold_fw)
2212                 goto skip_dpc;
2213
2214         /*
2215          * Startup the kernel thread for this host adapter
2216          */
2217         ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
2218                         "%s_dpc", base_vha->host_str);
2219         if (IS_ERR(ha->dpc_thread)) {
2220                 qla_printk(KERN_WARNING, ha,
2221                     "Unable to start DPC thread!\n");
2222                 ret = PTR_ERR(ha->dpc_thread);
2223                 goto probe_failed;
2224         }
2225
2226 skip_dpc:
2227         list_add_tail(&base_vha->list, &ha->vp_list);
2228         base_vha->host->irq = ha->pdev->irq;
2229
2230         /* Initialized the timer */
2231         qla2x00_start_timer(base_vha, qla2x00_timer, WATCH_INTERVAL);
2232
2233         DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
2234             base_vha->host_no, ha));
2235
2236         if ((IS_QLA25XX(ha) || IS_QLA81XX(ha)) && ql2xenabledif) {
2237                 if (ha->fw_attributes & BIT_4) {
2238                         base_vha->flags.difdix_supported = 1;
2239                         DEBUG18(qla_printk(KERN_INFO, ha,
2240                             "Registering for DIF/DIX type 1 and 3"
2241                             " protection.\n"));
2242                         scsi_host_set_prot(host,
2243                             SHOST_DIF_TYPE1_PROTECTION
2244                             | SHOST_DIF_TYPE2_PROTECTION
2245                             | SHOST_DIF_TYPE3_PROTECTION
2246                             | SHOST_DIX_TYPE1_PROTECTION
2247                             | SHOST_DIX_TYPE2_PROTECTION
2248                             | SHOST_DIX_TYPE3_PROTECTION);
2249                         scsi_host_set_guard(host, SHOST_DIX_GUARD_CRC);
2250                 } else
2251                         base_vha->flags.difdix_supported = 0;
2252         }
2253
2254         ha->isp_ops->enable_intrs(ha);
2255
2256         ret = scsi_add_host(host, &pdev->dev);
2257         if (ret)
2258                 goto probe_failed;
2259
2260         base_vha->flags.init_done = 1;
2261         base_vha->flags.online = 1;
2262
2263         scsi_scan_host(host);
2264
2265         qla2x00_alloc_sysfs_attr(base_vha);
2266
2267         qla2x00_init_host_attr(base_vha);
2268
2269         qla2x00_dfs_setup(base_vha);
2270
2271         qla_printk(KERN_INFO, ha, "\n"
2272             " QLogic Fibre Channel HBA Driver: %s\n"
2273             "  QLogic %s - %s\n"
2274             "  ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
2275             qla2x00_version_str, ha->model_number,
2276             ha->model_desc ? ha->model_desc : "", pdev->device,
2277             ha->isp_ops->pci_info_str(base_vha, pci_info), pci_name(pdev),
2278             ha->flags.enable_64bit_addressing ? '+' : '-', base_vha->host_no,
2279             ha->isp_ops->fw_version_str(base_vha, fw_str));
2280
2281         return 0;
2282
2283 probe_init_failed:
2284         qla2x00_free_req_que(ha, req);
2285         qla2x00_free_rsp_que(ha, rsp);
2286         ha->max_req_queues = ha->max_rsp_queues = 0;
2287
2288 probe_failed:
2289         if (base_vha->timer_active)
2290                 qla2x00_stop_timer(base_vha);
2291         base_vha->flags.online = 0;
2292         if (ha->dpc_thread) {
2293                 struct task_struct *t = ha->dpc_thread;
2294
2295                 ha->dpc_thread = NULL;
2296                 kthread_stop(t);
2297         }
2298
2299         qla2x00_free_device(base_vha);
2300
2301         scsi_host_put(base_vha->host);
2302
2303 probe_hw_failed:
2304         if (IS_QLA82XX(ha)) {
2305                 qla82xx_idc_lock(ha);
2306                 qla82xx_clear_drv_active(ha);
2307                 qla82xx_idc_unlock(ha);
2308                 iounmap((device_reg_t __iomem *)ha->nx_pcibase);
2309                 if (!ql2xdbwr)
2310                         iounmap((device_reg_t __iomem *)ha->nxdb_wr_ptr);
2311         } else {
2312                 if (ha->iobase)
2313                         iounmap(ha->iobase);
2314         }
2315         pci_release_selected_regions(ha->pdev, ha->bars);
2316         kfree(ha);
2317         ha = NULL;
2318
2319 probe_out:
2320         pci_disable_device(pdev);
2321         return ret;
2322 }
2323
2324 static void
2325 qla2x00_shutdown(struct pci_dev *pdev)
2326 {
2327         scsi_qla_host_t *vha;
2328         struct qla_hw_data  *ha;
2329
2330         vha = pci_get_drvdata(pdev);
2331         ha = vha->hw;
2332
2333         /* Turn-off FCE trace */
2334         if (ha->flags.fce_enabled) {
2335                 qla2x00_disable_fce_trace(vha, NULL, NULL);
2336                 ha->flags.fce_enabled = 0;
2337         }
2338
2339         /* Turn-off EFT trace */
2340         if (ha->eft)
2341                 qla2x00_disable_eft_trace(vha);
2342
2343         /* Stop currently executing firmware. */
2344         qla2x00_try_to_stop_firmware(vha);
2345
2346         /* Turn adapter off line */
2347         vha->flags.online = 0;
2348
2349         /* turn-off interrupts on the card */
2350         if (ha->interrupts_on) {
2351                 vha->flags.init_done = 0;
2352                 ha->isp_ops->disable_intrs(ha);
2353         }
2354
2355         qla2x00_free_irqs(vha);
2356
2357         qla2x00_free_fw_dump(ha);
2358 }
2359
2360 static void
2361 qla2x00_remove_one(struct pci_dev *pdev)
2362 {
2363         scsi_qla_host_t *base_vha, *vha;
2364         struct qla_hw_data  *ha;
2365         unsigned long flags;
2366
2367         base_vha = pci_get_drvdata(pdev);
2368         ha = base_vha->hw;
2369
2370         spin_lock_irqsave(&ha->vport_slock, flags);
2371         list_for_each_entry(vha, &ha->vp_list, list) {
2372                 atomic_inc(&vha->vref_count);
2373
2374                 if (vha && vha->fc_vport) {
2375                         spin_unlock_irqrestore(&ha->vport_slock, flags);
2376
2377                         fc_vport_terminate(vha->fc_vport);
2378
2379                         spin_lock_irqsave(&ha->vport_slock, flags);
2380                 }
2381
2382                 atomic_dec(&vha->vref_count);
2383         }
2384         spin_unlock_irqrestore(&ha->vport_slock, flags);
2385
2386         set_bit(UNLOADING, &base_vha->dpc_flags);
2387
2388         qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
2389
2390         qla2x00_dfs_remove(base_vha);
2391
2392         qla84xx_put_chip(base_vha);
2393
2394         /* Disable timer */
2395         if (base_vha->timer_active)
2396                 qla2x00_stop_timer(base_vha);
2397
2398         base_vha->flags.online = 0;
2399
2400         /* Flush the work queue and remove it */
2401         if (ha->wq) {
2402                 flush_workqueue(ha->wq);
2403                 destroy_workqueue(ha->wq);
2404                 ha->wq = NULL;
2405         }
2406
2407         /* Kill the kernel thread for this host */
2408         if (ha->dpc_thread) {
2409                 struct task_struct *t = ha->dpc_thread;
2410
2411                 /*
2412                  * qla2xxx_wake_dpc checks for ->dpc_thread
2413                  * so we need to zero it out.
2414                  */
2415                 ha->dpc_thread = NULL;
2416                 kthread_stop(t);
2417         }
2418
2419         qla2x00_free_sysfs_attr(base_vha);
2420
2421         fc_remove_host(base_vha->host);
2422
2423         scsi_remove_host(base_vha->host);
2424
2425         qla2x00_free_device(base_vha);
2426
2427         scsi_host_put(base_vha->host);
2428
2429         if (IS_QLA82XX(ha)) {
2430                 qla82xx_idc_lock(ha);
2431                 qla82xx_clear_drv_active(ha);
2432                 qla82xx_idc_unlock(ha);
2433
2434                 iounmap((device_reg_t __iomem *)ha->nx_pcibase);
2435                 if (!ql2xdbwr)
2436                         iounmap((device_reg_t __iomem *)ha->nxdb_wr_ptr);
2437         } else {
2438                 if (ha->iobase)
2439                         iounmap(ha->iobase);
2440
2441                 if (ha->mqiobase)
2442                         iounmap(ha->mqiobase);
2443         }
2444
2445         pci_release_selected_regions(ha->pdev, ha->bars);
2446         kfree(ha);
2447         ha = NULL;
2448
2449         pci_disable_pcie_error_reporting(pdev);
2450
2451         pci_disable_device(pdev);
2452         pci_set_drvdata(pdev, NULL);
2453 }
2454
2455 static void
2456 qla2x00_free_device(scsi_qla_host_t *vha)
2457 {
2458         struct qla_hw_data *ha = vha->hw;
2459
2460         qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
2461
2462         /* Disable timer */
2463         if (vha->timer_active)
2464                 qla2x00_stop_timer(vha);
2465
2466         /* Kill the kernel thread for this host */
2467         if (ha->dpc_thread) {
2468                 struct task_struct *t = ha->dpc_thread;
2469
2470                 /*
2471                  * qla2xxx_wake_dpc checks for ->dpc_thread
2472                  * so we need to zero it out.
2473                  */
2474                 ha->dpc_thread = NULL;
2475                 kthread_stop(t);
2476         }
2477
2478         qla25xx_delete_queues(vha);
2479
2480         if (ha->flags.fce_enabled)
2481                 qla2x00_disable_fce_trace(vha, NULL, NULL);
2482
2483         if (ha->eft)
2484                 qla2x00_disable_eft_trace(vha);
2485
2486         /* Stop currently executing firmware. */
2487         qla2x00_try_to_stop_firmware(vha);
2488
2489         vha->flags.online = 0;
2490
2491         /* turn-off interrupts on the card */
2492         if (ha->interrupts_on) {
2493                 vha->flags.init_done = 0;
2494                 ha->isp_ops->disable_intrs(ha);
2495         }
2496
2497         qla2x00_free_irqs(vha);
2498
2499         qla2x00_free_fcports(vha);
2500
2501         qla2x00_mem_free(ha);
2502
2503         qla2x00_free_queues(ha);
2504 }
2505
2506 void qla2x00_free_fcports(struct scsi_qla_host *vha)
2507 {
2508         fc_port_t *fcport, *tfcport;
2509
2510         list_for_each_entry_safe(fcport, tfcport, &vha->vp_fcports, list) {
2511                 list_del(&fcport->list);
2512                 kfree(fcport);
2513                 fcport = NULL;
2514         }
2515 }
2516
2517 static inline void
2518 qla2x00_schedule_rport_del(struct scsi_qla_host *vha, fc_port_t *fcport,
2519     int defer)
2520 {
2521         struct fc_rport *rport;
2522         scsi_qla_host_t *base_vha;
2523
2524         if (!fcport->rport)
2525                 return;
2526
2527         rport = fcport->rport;
2528         if (defer) {
2529                 base_vha = pci_get_drvdata(vha->hw->pdev);
2530                 spin_lock_irq(vha->host->host_lock);
2531                 fcport->drport = rport;
2532                 spin_unlock_irq(vha->host->host_lock);
2533                 set_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
2534                 qla2xxx_wake_dpc(base_vha);
2535         } else
2536                 fc_remote_port_delete(rport);
2537 }
2538
2539 /*
2540  * qla2x00_mark_device_lost Updates fcport state when device goes offline.
2541  *
2542  * Input: ha = adapter block pointer.  fcport = port structure pointer.
2543  *
2544  * Return: None.
2545  *
2546  * Context:
2547  */
2548 void qla2x00_mark_device_lost(scsi_qla_host_t *vha, fc_port_t *fcport,
2549     int do_login, int defer)
2550 {
2551         if (atomic_read(&fcport->state) == FCS_ONLINE &&
2552             vha->vp_idx == fcport->vp_idx) {
2553                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
2554                 qla2x00_schedule_rport_del(vha, fcport, defer);
2555         }
2556         /*
2557          * We may need to retry the login, so don't change the state of the
2558          * port but do the retries.
2559          */
2560         if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
2561                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
2562
2563         if (!do_login)
2564                 return;
2565
2566         if (fcport->login_retry == 0) {
2567                 fcport->login_retry = vha->hw->login_retry_count;
2568                 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
2569
2570                 DEBUG(printk("scsi(%ld): Port login retry: "
2571                     "%02x%02x%02x%02x%02x%02x%02x%02x, "
2572                     "id = 0x%04x retry cnt=%d\n",
2573                     vha->host_no,
2574                     fcport->port_name[0],
2575                     fcport->port_name[1],
2576                     fcport->port_name[2],
2577                     fcport->port_name[3],
2578                     fcport->port_name[4],
2579                     fcport->port_name[5],
2580                     fcport->port_name[6],
2581                     fcport->port_name[7],
2582                     fcport->loop_id,
2583                     fcport->login_retry));
2584         }
2585 }
2586
2587 /*
2588  * qla2x00_mark_all_devices_lost
2589  *      Updates fcport state when device goes offline.
2590  *
2591  * Input:
2592  *      ha = adapter block pointer.
2593  *      fcport = port structure pointer.
2594  *
2595  * Return:
2596  *      None.
2597  *
2598  * Context:
2599  */
2600 void
2601 qla2x00_mark_all_devices_lost(scsi_qla_host_t *vha, int defer)
2602 {
2603         fc_port_t *fcport;
2604
2605         list_for_each_entry(fcport, &vha->vp_fcports, list) {
2606                 if (vha->vp_idx != 0 && vha->vp_idx != fcport->vp_idx)
2607                         continue;
2608
2609                 /*
2610                  * No point in marking the device as lost, if the device is
2611                  * already DEAD.
2612                  */
2613                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
2614                         continue;
2615                 if (atomic_read(&fcport->state) == FCS_ONLINE) {
2616                         atomic_set(&fcport->state, FCS_DEVICE_LOST);
2617                         if (defer)
2618                                 qla2x00_schedule_rport_del(vha, fcport, defer);
2619                         else if (vha->vp_idx == fcport->vp_idx)
2620                                 qla2x00_schedule_rport_del(vha, fcport, defer);
2621                 }
2622         }
2623 }
2624
2625 /*
2626 * qla2x00_mem_alloc
2627 *      Allocates adapter memory.
2628 *
2629 * Returns:
2630 *      0  = success.
2631 *      !0  = failure.
2632 */
2633 static int
2634 qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len,
2635         struct req_que **req, struct rsp_que **rsp)
2636 {
2637         char    name[16];
2638
2639         ha->init_cb = dma_alloc_coherent(&ha->pdev->dev, ha->init_cb_size,
2640                 &ha->init_cb_dma, GFP_KERNEL);
2641         if (!ha->init_cb)
2642                 goto fail;
2643
2644         ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
2645                 &ha->gid_list_dma, GFP_KERNEL);
2646         if (!ha->gid_list)
2647                 goto fail_free_init_cb;
2648
2649         ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
2650         if (!ha->srb_mempool)
2651                 goto fail_free_gid_list;
2652
2653         if (IS_QLA82XX(ha)) {
2654                 /* Allocate cache for CT6 Ctx. */
2655                 if (!ctx_cachep) {
2656                         ctx_cachep = kmem_cache_create("qla2xxx_ctx",
2657                                 sizeof(struct ct6_dsd), 0,
2658                                 SLAB_HWCACHE_ALIGN, NULL);
2659                         if (!ctx_cachep)
2660                                 goto fail_free_gid_list;
2661                 }
2662                 ha->ctx_mempool = mempool_create_slab_pool(SRB_MIN_REQ,
2663                         ctx_cachep);
2664                 if (!ha->ctx_mempool)
2665                         goto fail_free_srb_mempool;
2666         }
2667
2668         /* Get memory for cached NVRAM */
2669         ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
2670         if (!ha->nvram)
2671                 goto fail_free_ctx_mempool;
2672
2673         snprintf(name, sizeof(name), "%s_%d", QLA2XXX_DRIVER_NAME,
2674                 ha->pdev->device);
2675         ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2676                 DMA_POOL_SIZE, 8, 0);
2677         if (!ha->s_dma_pool)
2678                 goto fail_free_nvram;
2679
2680         if (IS_QLA82XX(ha) || ql2xenabledif) {
2681                 ha->dl_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2682                         DSD_LIST_DMA_POOL_SIZE, 8, 0);
2683                 if (!ha->dl_dma_pool) {
2684                         qla_printk(KERN_WARNING, ha,
2685                             "Memory Allocation failed - dl_dma_pool\n");
2686                         goto fail_s_dma_pool;
2687                 }
2688
2689                 ha->fcp_cmnd_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2690                         FCP_CMND_DMA_POOL_SIZE, 8, 0);
2691                 if (!ha->fcp_cmnd_dma_pool) {
2692                         qla_printk(KERN_WARNING, ha,
2693                             "Memory Allocation failed - fcp_cmnd_dma_pool\n");
2694                         goto fail_dl_dma_pool;
2695                 }
2696         }
2697
2698         /* Allocate memory for SNS commands */
2699         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
2700         /* Get consistent memory allocated for SNS commands */
2701                 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
2702                 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, GFP_KERNEL);
2703                 if (!ha->sns_cmd)
2704                         goto fail_dma_pool;
2705         } else {
2706         /* Get consistent memory allocated for MS IOCB */
2707                 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2708                         &ha->ms_iocb_dma);
2709                 if (!ha->ms_iocb)
2710                         goto fail_dma_pool;
2711         /* Get consistent memory allocated for CT SNS commands */
2712                 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
2713                         sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, GFP_KERNEL);
2714                 if (!ha->ct_sns)
2715                         goto fail_free_ms_iocb;
2716         }
2717
2718         /* Allocate memory for request ring */
2719         *req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
2720         if (!*req) {
2721                 DEBUG(printk("Unable to allocate memory for req\n"));
2722                 goto fail_req;
2723         }
2724         (*req)->length = req_len;
2725         (*req)->ring = dma_alloc_coherent(&ha->pdev->dev,
2726                 ((*req)->length + 1) * sizeof(request_t),
2727                 &(*req)->dma, GFP_KERNEL);
2728         if (!(*req)->ring) {
2729                 DEBUG(printk("Unable to allocate memory for req_ring\n"));
2730                 goto fail_req_ring;
2731         }
2732         /* Allocate memory for response ring */
2733         *rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
2734         if (!*rsp) {
2735                 qla_printk(KERN_WARNING, ha,
2736                         "Unable to allocate memory for rsp\n");
2737                 goto fail_rsp;
2738         }
2739         (*rsp)->hw = ha;
2740         (*rsp)->length = rsp_len;
2741         (*rsp)->ring = dma_alloc_coherent(&ha->pdev->dev,
2742                 ((*rsp)->length + 1) * sizeof(response_t),
2743                 &(*rsp)->dma, GFP_KERNEL);
2744         if (!(*rsp)->ring) {
2745                 qla_printk(KERN_WARNING, ha,
2746                         "Unable to allocate memory for rsp_ring\n");
2747                 goto fail_rsp_ring;
2748         }
2749         (*req)->rsp = *rsp;
2750         (*rsp)->req = *req;
2751         /* Allocate memory for NVRAM data for vports */
2752         if (ha->nvram_npiv_size) {
2753                 ha->npiv_info = kzalloc(sizeof(struct qla_npiv_entry) *
2754                                         ha->nvram_npiv_size, GFP_KERNEL);
2755                 if (!ha->npiv_info) {
2756                         qla_printk(KERN_WARNING, ha,
2757                                 "Unable to allocate memory for npiv info\n");
2758                         goto fail_npiv_info;
2759                 }
2760         } else
2761                 ha->npiv_info = NULL;
2762
2763         /* Get consistent memory allocated for EX-INIT-CB. */
2764         if (IS_QLA8XXX_TYPE(ha)) {
2765                 ha->ex_init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2766                     &ha->ex_init_cb_dma);
2767                 if (!ha->ex_init_cb)
2768                         goto fail_ex_init_cb;
2769         }
2770
2771         INIT_LIST_HEAD(&ha->gbl_dsd_list);
2772
2773         /* Get consistent memory allocated for Async Port-Database. */
2774         if (!IS_FWI2_CAPABLE(ha)) {
2775                 ha->async_pd = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2776                         &ha->async_pd_dma);
2777                 if (!ha->async_pd)
2778                         goto fail_async_pd;
2779         }
2780
2781         INIT_LIST_HEAD(&ha->vp_list);
2782         return 1;
2783
2784 fail_async_pd:
2785         dma_pool_free(ha->s_dma_pool, ha->ex_init_cb, ha->ex_init_cb_dma);
2786 fail_ex_init_cb:
2787         kfree(ha->npiv_info);
2788 fail_npiv_info:
2789         dma_free_coherent(&ha->pdev->dev, ((*rsp)->length + 1) *
2790                 sizeof(response_t), (*rsp)->ring, (*rsp)->dma);
2791         (*rsp)->ring = NULL;
2792         (*rsp)->dma = 0;
2793 fail_rsp_ring:
2794         kfree(*rsp);
2795 fail_rsp:
2796         dma_free_coherent(&ha->pdev->dev, ((*req)->length + 1) *
2797                 sizeof(request_t), (*req)->ring, (*req)->dma);
2798         (*req)->ring = NULL;
2799         (*req)->dma = 0;
2800 fail_req_ring:
2801         kfree(*req);
2802 fail_req:
2803         dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2804                 ha->ct_sns, ha->ct_sns_dma);
2805         ha->ct_sns = NULL;
2806         ha->ct_sns_dma = 0;
2807 fail_free_ms_iocb:
2808         dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2809         ha->ms_iocb = NULL;
2810         ha->ms_iocb_dma = 0;
2811 fail_dma_pool:
2812         if (IS_QLA82XX(ha) || ql2xenabledif) {
2813                 dma_pool_destroy(ha->fcp_cmnd_dma_pool);
2814                 ha->fcp_cmnd_dma_pool = NULL;
2815         }
2816 fail_dl_dma_pool:
2817         if (IS_QLA82XX(ha) || ql2xenabledif) {
2818                 dma_pool_destroy(ha->dl_dma_pool);
2819                 ha->dl_dma_pool = NULL;
2820         }
2821 fail_s_dma_pool:
2822         dma_pool_destroy(ha->s_dma_pool);
2823         ha->s_dma_pool = NULL;
2824 fail_free_nvram:
2825         kfree(ha->nvram);
2826         ha->nvram = NULL;
2827 fail_free_ctx_mempool:
2828         mempool_destroy(ha->ctx_mempool);
2829         ha->ctx_mempool = NULL;
2830 fail_free_srb_mempool:
2831         mempool_destroy(ha->srb_mempool);
2832         ha->srb_mempool = NULL;
2833 fail_free_gid_list:
2834         dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2835         ha->gid_list_dma);
2836         ha->gid_list = NULL;
2837         ha->gid_list_dma = 0;
2838 fail_free_init_cb:
2839         dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb,
2840         ha->init_cb_dma);
2841         ha->init_cb = NULL;
2842         ha->init_cb_dma = 0;
2843 fail:
2844         DEBUG(printk("%s: Memory allocation failure\n", __func__));
2845         return -ENOMEM;
2846 }
2847
2848 /*
2849 * qla2x00_free_fw_dump
2850 *       Frees fw dump stuff.
2851 *
2852 * Input:
2853 *       ha = adapter block pointer.
2854 */
2855 static void
2856 qla2x00_free_fw_dump(struct qla_hw_data *ha)
2857 {
2858         if (ha->fce)
2859                 dma_free_coherent(&ha->pdev->dev, FCE_SIZE, ha->fce,
2860                     ha->fce_dma);
2861
2862         if (ha->fw_dump) {
2863                 if (ha->eft)
2864                         dma_free_coherent(&ha->pdev->dev,
2865                             ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2866                 vfree(ha->fw_dump);
2867         }
2868         ha->fce = NULL;
2869         ha->fce_dma = 0;
2870         ha->eft = NULL;
2871         ha->eft_dma = 0;
2872         ha->fw_dump = NULL;
2873         ha->fw_dumped = 0;
2874         ha->fw_dump_reading = 0;
2875 }
2876
2877 /*
2878 * qla2x00_mem_free
2879 *      Frees all adapter allocated memory.
2880 *
2881 * Input:
2882 *      ha = adapter block pointer.
2883 */
2884 static void
2885 qla2x00_mem_free(struct qla_hw_data *ha)
2886 {
2887         qla2x00_free_fw_dump(ha);
2888
2889         if (ha->srb_mempool)
2890                 mempool_destroy(ha->srb_mempool);
2891
2892         if (ha->dcbx_tlv)
2893                 dma_free_coherent(&ha->pdev->dev, DCBX_TLV_DATA_SIZE,
2894                     ha->dcbx_tlv, ha->dcbx_tlv_dma);
2895
2896         if (ha->xgmac_data)
2897                 dma_free_coherent(&ha->pdev->dev, XGMAC_DATA_SIZE,
2898                     ha->xgmac_data, ha->xgmac_data_dma);
2899
2900         if (ha->sns_cmd)
2901                 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2902                 ha->sns_cmd, ha->sns_cmd_dma);
2903
2904         if (ha->ct_sns)
2905                 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2906                 ha->ct_sns, ha->ct_sns_dma);
2907
2908         if (ha->sfp_data)
2909                 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
2910
2911         if (ha->edc_data)
2912                 dma_pool_free(ha->s_dma_pool, ha->edc_data, ha->edc_data_dma);
2913
2914         if (ha->ms_iocb)
2915                 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2916
2917         if (ha->ex_init_cb)
2918                 dma_pool_free(ha->s_dma_pool,
2919                         ha->ex_init_cb, ha->ex_init_cb_dma);
2920
2921         if (ha->async_pd)
2922                 dma_pool_free(ha->s_dma_pool, ha->async_pd, ha->async_pd_dma);
2923
2924         if (ha->s_dma_pool)
2925                 dma_pool_destroy(ha->s_dma_pool);
2926
2927         if (ha->gid_list)
2928                 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2929                 ha->gid_list_dma);
2930
2931         if (IS_QLA82XX(ha)) {
2932                 if (!list_empty(&ha->gbl_dsd_list)) {
2933                         struct dsd_dma *dsd_ptr, *tdsd_ptr;
2934
2935                         /* clean up allocated prev pool */
2936                         list_for_each_entry_safe(dsd_ptr,
2937                                 tdsd_ptr, &ha->gbl_dsd_list, list) {
2938                                 dma_pool_free(ha->dl_dma_pool,
2939                                 dsd_ptr->dsd_addr, dsd_ptr->dsd_list_dma);
2940                                 list_del(&dsd_ptr->list);
2941                                 kfree(dsd_ptr);
2942                         }
2943                 }
2944         }
2945
2946         if (ha->dl_dma_pool)
2947                 dma_pool_destroy(ha->dl_dma_pool);
2948
2949         if (ha->fcp_cmnd_dma_pool)
2950                 dma_pool_destroy(ha->fcp_cmnd_dma_pool);
2951
2952         if (ha->ctx_mempool)
2953                 mempool_destroy(ha->ctx_mempool);
2954
2955         if (ha->init_cb)
2956                 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
2957                         ha->init_cb, ha->init_cb_dma);
2958         vfree(ha->optrom_buffer);
2959         kfree(ha->nvram);
2960         kfree(ha->npiv_info);
2961
2962         ha->srb_mempool = NULL;
2963         ha->ctx_mempool = NULL;
2964         ha->sns_cmd = NULL;
2965         ha->sns_cmd_dma = 0;
2966         ha->ct_sns = NULL;
2967         ha->ct_sns_dma = 0;
2968         ha->ms_iocb = NULL;
2969         ha->ms_iocb_dma = 0;
2970         ha->init_cb = NULL;
2971         ha->init_cb_dma = 0;
2972         ha->ex_init_cb = NULL;
2973         ha->ex_init_cb_dma = 0;
2974         ha->async_pd = NULL;
2975         ha->async_pd_dma = 0;
2976
2977         ha->s_dma_pool = NULL;
2978         ha->dl_dma_pool = NULL;
2979         ha->fcp_cmnd_dma_pool = NULL;
2980
2981         ha->gid_list = NULL;
2982         ha->gid_list_dma = 0;
2983 }
2984
2985 struct scsi_qla_host *qla2x00_create_host(struct scsi_host_template *sht,
2986                                                 struct qla_hw_data *ha)
2987 {
2988         struct Scsi_Host *host;
2989         struct scsi_qla_host *vha = NULL;
2990
2991         host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
2992         if (host == NULL) {
2993                 printk(KERN_WARNING
2994                 "qla2xxx: Couldn't allocate host from scsi layer!\n");
2995                 goto fail;
2996         }
2997
2998         /* Clear our data area */
2999         vha = shost_priv(host);
3000         memset(vha, 0, sizeof(scsi_qla_host_t));
3001
3002         vha->host = host;
3003         vha->host_no = host->host_no;
3004         vha->hw = ha;
3005
3006         INIT_LIST_HEAD(&vha->vp_fcports);
3007         INIT_LIST_HEAD(&vha->work_list);
3008         INIT_LIST_HEAD(&vha->list);
3009
3010         spin_lock_init(&vha->work_lock);
3011
3012         sprintf(vha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, vha->host_no);
3013         return vha;
3014
3015 fail:
3016         return vha;
3017 }
3018
3019 static struct qla_work_evt *
3020 qla2x00_alloc_work(struct scsi_qla_host *vha, enum qla_work_type type)
3021 {
3022         struct qla_work_evt *e;
3023         uint8_t bail;
3024
3025         QLA_VHA_MARK_BUSY(vha, bail);
3026         if (bail)
3027                 return NULL;
3028
3029         e = kzalloc(sizeof(struct qla_work_evt), GFP_ATOMIC);
3030         if (!e) {
3031                 QLA_VHA_MARK_NOT_BUSY(vha);
3032                 return NULL;
3033         }
3034
3035         INIT_LIST_HEAD(&e->list);
3036         e->type = type;
3037         e->flags = QLA_EVT_FLAG_FREE;
3038         return e;
3039 }
3040
3041 static int
3042 qla2x00_post_work(struct scsi_qla_host *vha, struct qla_work_evt *e)
3043 {
3044         unsigned long flags;
3045
3046         spin_lock_irqsave(&vha->work_lock, flags);
3047         list_add_tail(&e->list, &vha->work_list);
3048         spin_unlock_irqrestore(&vha->work_lock, flags);
3049         qla2xxx_wake_dpc(vha);
3050
3051         return QLA_SUCCESS;
3052 }
3053
3054 int
3055 qla2x00_post_aen_work(struct scsi_qla_host *vha, enum fc_host_event_code code,
3056     u32 data)
3057 {
3058         struct qla_work_evt *e;
3059
3060         e = qla2x00_alloc_work(vha, QLA_EVT_AEN);
3061         if (!e)
3062                 return QLA_FUNCTION_FAILED;
3063
3064         e->u.aen.code = code;
3065         e->u.aen.data = data;
3066         return qla2x00_post_work(vha, e);
3067 }
3068
3069 int
3070 qla2x00_post_idc_ack_work(struct scsi_qla_host *vha, uint16_t *mb)
3071 {
3072         struct qla_work_evt *e;
3073
3074         e = qla2x00_alloc_work(vha, QLA_EVT_IDC_ACK);
3075         if (!e)
3076                 return QLA_FUNCTION_FAILED;
3077
3078         memcpy(e->u.idc_ack.mb, mb, QLA_IDC_ACK_REGS * sizeof(uint16_t));
3079         return qla2x00_post_work(vha, e);
3080 }
3081
3082 #define qla2x00_post_async_work(name, type)     \
3083 int qla2x00_post_async_##name##_work(           \
3084     struct scsi_qla_host *vha,                  \
3085     fc_port_t *fcport, uint16_t *data)          \
3086 {                                               \
3087         struct qla_work_evt *e;                 \
3088                                                 \
3089         e = qla2x00_alloc_work(vha, type);      \
3090         if (!e)                                 \
3091                 return QLA_FUNCTION_FAILED;     \
3092                                                 \
3093         e->u.logio.fcport = fcport;             \
3094         if (data) {                             \
3095                 e->u.logio.data[0] = data[0];   \
3096                 e->u.logio.data[1] = data[1];   \
3097         }                                       \
3098         return qla2x00_post_work(vha, e);       \
3099 }
3100
3101 qla2x00_post_async_work(login, QLA_EVT_ASYNC_LOGIN);
3102 qla2x00_post_async_work(login_done, QLA_EVT_ASYNC_LOGIN_DONE);
3103 qla2x00_post_async_work(logout, QLA_EVT_ASYNC_LOGOUT);
3104 qla2x00_post_async_work(logout_done, QLA_EVT_ASYNC_LOGOUT_DONE);
3105 qla2x00_post_async_work(adisc, QLA_EVT_ASYNC_ADISC);
3106 qla2x00_post_async_work(adisc_done, QLA_EVT_ASYNC_ADISC_DONE);
3107
3108 int
3109 qla2x00_post_uevent_work(struct scsi_qla_host *vha, u32 code)
3110 {
3111         struct qla_work_evt *e;
3112
3113         e = qla2x00_alloc_work(vha, QLA_EVT_UEVENT);
3114         if (!e)
3115                 return QLA_FUNCTION_FAILED;
3116
3117         e->u.uevent.code = code;
3118         return qla2x00_post_work(vha, e);
3119 }
3120
3121 static void
3122 qla2x00_uevent_emit(struct scsi_qla_host *vha, u32 code)
3123 {
3124         char event_string[40];
3125         char *envp[] = { event_string, NULL };
3126
3127         switch (code) {
3128         case QLA_UEVENT_CODE_FW_DUMP:
3129                 snprintf(event_string, sizeof(event_string), "FW_DUMP=%ld",
3130                     vha->host_no);
3131                 break;
3132         default:
3133                 /* do nothing */
3134                 break;
3135         }
3136         kobject_uevent_env(&vha->hw->pdev->dev.kobj, KOBJ_CHANGE, envp);
3137 }
3138
3139 void
3140 qla2x00_do_work(struct scsi_qla_host *vha)
3141 {
3142         struct qla_work_evt *e, *tmp;
3143         unsigned long flags;
3144         LIST_HEAD(work);
3145
3146         spin_lock_irqsave(&vha->work_lock, flags);
3147         list_splice_init(&vha->work_list, &work);
3148         spin_unlock_irqrestore(&vha->work_lock, flags);
3149
3150         list_for_each_entry_safe(e, tmp, &work, list) {
3151                 list_del_init(&e->list);
3152
3153                 switch (e->type) {
3154                 case QLA_EVT_AEN:
3155                         fc_host_post_event(vha->host, fc_get_event_number(),
3156                             e->u.aen.code, e->u.aen.data);
3157                         break;
3158                 case QLA_EVT_IDC_ACK:
3159                         qla81xx_idc_ack(vha, e->u.idc_ack.mb);
3160                         break;
3161                 case QLA_EVT_ASYNC_LOGIN:
3162                         qla2x00_async_login(vha, e->u.logio.fcport,
3163                             e->u.logio.data);
3164                         break;
3165                 case QLA_EVT_ASYNC_LOGIN_DONE:
3166                         qla2x00_async_login_done(vha, e->u.logio.fcport,
3167                             e->u.logio.data);
3168                         break;
3169                 case QLA_EVT_ASYNC_LOGOUT:
3170                         qla2x00_async_logout(vha, e->u.logio.fcport);
3171                         break;
3172                 case QLA_EVT_ASYNC_LOGOUT_DONE:
3173                         qla2x00_async_logout_done(vha, e->u.logio.fcport,
3174                             e->u.logio.data);
3175                         break;
3176                 case QLA_EVT_ASYNC_ADISC:
3177                         qla2x00_async_adisc(vha, e->u.logio.fcport,
3178                             e->u.logio.data);
3179                         break;
3180                 case QLA_EVT_ASYNC_ADISC_DONE:
3181                         qla2x00_async_adisc_done(vha, e->u.logio.fcport,
3182                             e->u.logio.data);
3183                         break;
3184                 case QLA_EVT_UEVENT:
3185                         qla2x00_uevent_emit(vha, e->u.uevent.code);
3186                         break;
3187                 }
3188                 if (e->flags & QLA_EVT_FLAG_FREE)
3189                         kfree(e);
3190
3191                 /* For each work completed decrement vha ref count */
3192                 QLA_VHA_MARK_NOT_BUSY(vha);
3193         }
3194 }
3195
3196 /* Relogins all the fcports of a vport
3197  * Context: dpc thread
3198  */
3199 void qla2x00_relogin(struct scsi_qla_host *vha)
3200 {
3201         fc_port_t       *fcport;
3202         int status;
3203         uint16_t        next_loopid = 0;
3204         struct qla_hw_data *ha = vha->hw;
3205         uint16_t data[2];
3206
3207         list_for_each_entry(fcport, &vha->vp_fcports, list) {
3208         /*
3209          * If the port is not ONLINE then try to login
3210          * to it if we haven't run out of retries.
3211          */
3212                 if (atomic_read(&fcport->state) != FCS_ONLINE &&
3213                     fcport->login_retry && !(fcport->flags & FCF_ASYNC_SENT)) {
3214                         fcport->login_retry--;
3215                         if (fcport->flags & FCF_FABRIC_DEVICE) {
3216                                 if (fcport->flags & FCF_FCP2_DEVICE)
3217                                         ha->isp_ops->fabric_logout(vha,
3218                                                         fcport->loop_id,
3219                                                         fcport->d_id.b.domain,
3220                                                         fcport->d_id.b.area,
3221                                                         fcport->d_id.b.al_pa);
3222
3223                                 if (IS_ALOGIO_CAPABLE(ha)) {
3224                                         fcport->flags |= FCF_ASYNC_SENT;
3225                                         data[0] = 0;
3226                                         data[1] = QLA_LOGIO_LOGIN_RETRIED;
3227                                         status = qla2x00_post_async_login_work(
3228                                             vha, fcport, data);
3229                                         if (status == QLA_SUCCESS)
3230                                                 continue;
3231                                         /* Attempt a retry. */
3232                                         status = 1;
3233                                 } else
3234                                         status = qla2x00_fabric_login(vha,
3235                                             fcport, &next_loopid);
3236                         } else
3237                                 status = qla2x00_local_device_login(vha,
3238                                                                 fcport);
3239
3240                         if (status == QLA_SUCCESS) {
3241                                 fcport->old_loop_id = fcport->loop_id;
3242
3243                                 DEBUG(printk("scsi(%ld): port login OK: logged "
3244                                 "in ID 0x%x\n", vha->host_no, fcport->loop_id));
3245
3246                                 qla2x00_update_fcport(vha, fcport);
3247
3248                         } else if (status == 1) {
3249                                 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
3250                                 /* retry the login again */
3251                                 DEBUG(printk("scsi(%ld): Retrying"
3252                                 " %d login again loop_id 0x%x\n",
3253                                 vha->host_no, fcport->login_retry,
3254                                                 fcport->loop_id));
3255                         } else {
3256                                 fcport->login_retry = 0;
3257                         }
3258
3259                         if (fcport->login_retry == 0 && status != QLA_SUCCESS)
3260                                 fcport->loop_id = FC_NO_LOOP_ID;
3261                 }
3262                 if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
3263                         break;
3264         }
3265 }
3266
3267 /**************************************************************************
3268 * qla2x00_do_dpc
3269 *   This kernel thread is a task that is schedule by the interrupt handler
3270 *   to perform the background processing for interrupts.
3271 *
3272 * Notes:
3273 * This task always run in the context of a kernel thread.  It
3274 * is kick-off by the driver's detect code and starts up
3275 * up one per adapter. It immediately goes to sleep and waits for
3276 * some fibre event.  When either the interrupt handler or
3277 * the timer routine detects a event it will one of the task
3278 * bits then wake us up.
3279 **************************************************************************/
3280 static int
3281 qla2x00_do_dpc(void *data)
3282 {
3283         int             rval;
3284         scsi_qla_host_t *base_vha;
3285         struct qla_hw_data *ha;
3286
3287         ha = (struct qla_hw_data *)data;
3288         base_vha = pci_get_drvdata(ha->pdev);
3289
3290         set_user_nice(current, -20);
3291
3292         while (!kthread_should_stop()) {
3293                 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
3294
3295                 set_current_state(TASK_INTERRUPTIBLE);
3296                 schedule();
3297                 __set_current_state(TASK_RUNNING);
3298
3299                 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
3300
3301                 /* Initialization not yet finished. Don't do anything yet. */
3302                 if (!base_vha->flags.init_done)
3303                         continue;
3304
3305                 if (ha->flags.eeh_busy) {
3306                         DEBUG17(qla_printk(KERN_WARNING, ha,
3307                             "qla2x00_do_dpc: dpc_flags: %lx\n",
3308                             base_vha->dpc_flags));
3309                         continue;
3310                 }
3311
3312                 DEBUG3(printk("scsi(%ld): DPC handler\n", base_vha->host_no));
3313
3314                 ha->dpc_active = 1;
3315
3316                 if (ha->flags.mbox_busy) {
3317                         ha->dpc_active = 0;
3318                         continue;
3319                 }
3320
3321                 qla2x00_do_work(base_vha);
3322
3323                 if (IS_QLA82XX(ha)) {
3324                         if (test_and_clear_bit(ISP_UNRECOVERABLE,
3325                                 &base_vha->dpc_flags)) {
3326                                 qla82xx_idc_lock(ha);
3327                                 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3328                                         QLA82XX_DEV_FAILED);
3329                                 qla82xx_idc_unlock(ha);
3330                                 qla_printk(KERN_INFO, ha,
3331                                         "HW State: FAILED\n");
3332                                 qla82xx_device_state_handler(base_vha);
3333                                 continue;
3334                         }
3335
3336                         if (test_and_clear_bit(FCOE_CTX_RESET_NEEDED,
3337                                 &base_vha->dpc_flags)) {
3338
3339                                 DEBUG(printk(KERN_INFO
3340                                         "scsi(%ld): dpc: sched "
3341                                         "qla82xx_fcoe_ctx_reset ha = %p\n",
3342                                         base_vha->host_no, ha));
3343                                 if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
3344                                         &base_vha->dpc_flags))) {
3345                                         if (qla82xx_fcoe_ctx_reset(base_vha)) {
3346                                                 /* FCoE-ctx reset failed.
3347                                                  * Escalate to chip-reset
3348                                                  */
3349                                                 set_bit(ISP_ABORT_NEEDED,
3350                                                         &base_vha->dpc_flags);
3351                                         }
3352                                         clear_bit(ABORT_ISP_ACTIVE,
3353                                                 &base_vha->dpc_flags);
3354                                 }
3355
3356                                 DEBUG(printk("scsi(%ld): dpc:"
3357                                         " qla82xx_fcoe_ctx_reset end\n",
3358                                         base_vha->host_no));
3359                         }
3360                 }
3361
3362                 if (test_and_clear_bit(ISP_ABORT_NEEDED,
3363                                                 &base_vha->dpc_flags)) {
3364
3365                         DEBUG(printk("scsi(%ld): dpc: sched "
3366                             "qla2x00_abort_isp ha = %p\n",
3367                             base_vha->host_no, ha));
3368                         if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
3369                             &base_vha->dpc_flags))) {
3370
3371                                 if (ha->isp_ops->abort_isp(base_vha)) {
3372                                         /* failed. retry later */
3373                                         set_bit(ISP_ABORT_NEEDED,
3374                                             &base_vha->dpc_flags);
3375                                 }
3376                                 clear_bit(ABORT_ISP_ACTIVE,
3377                                                 &base_vha->dpc_flags);
3378                         }
3379
3380                         DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
3381                             base_vha->host_no));
3382                 }
3383
3384                 if (test_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags)) {
3385                         qla2x00_update_fcports(base_vha);
3386                         clear_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
3387                 }
3388
3389                 if (test_and_clear_bit(RESET_MARKER_NEEDED,
3390                                                         &base_vha->dpc_flags) &&
3391                     (!(test_and_set_bit(RESET_ACTIVE, &base_vha->dpc_flags)))) {
3392
3393                         DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
3394                             base_vha->host_no));
3395
3396                         qla2x00_rst_aen(base_vha);
3397                         clear_bit(RESET_ACTIVE, &base_vha->dpc_flags);
3398                 }
3399
3400                 /* Retry each device up to login retry count */
3401                 if ((test_and_clear_bit(RELOGIN_NEEDED,
3402                                                 &base_vha->dpc_flags)) &&
3403                     !test_bit(LOOP_RESYNC_NEEDED, &base_vha->dpc_flags) &&
3404                     atomic_read(&base_vha->loop_state) != LOOP_DOWN) {
3405
3406                         DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
3407                                         base_vha->host_no));
3408                         qla2x00_relogin(base_vha);
3409
3410                         DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
3411                             base_vha->host_no));
3412                 }
3413
3414                 if (test_and_clear_bit(LOOP_RESYNC_NEEDED,
3415                                                         &base_vha->dpc_flags)) {
3416
3417                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
3418                                 base_vha->host_no));
3419
3420                         if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
3421                             &base_vha->dpc_flags))) {
3422
3423                                 rval = qla2x00_loop_resync(base_vha);
3424
3425                                 clear_bit(LOOP_RESYNC_ACTIVE,
3426                                                 &base_vha->dpc_flags);
3427                         }
3428
3429                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
3430                             base_vha->host_no));
3431                 }
3432
3433                 if (test_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags) &&
3434                     atomic_read(&base_vha->loop_state) == LOOP_READY) {
3435                         clear_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags);
3436                         qla2xxx_flash_npiv_conf(base_vha);
3437                 }
3438
3439                 if (!ha->interrupts_on)
3440                         ha->isp_ops->enable_intrs(ha);
3441
3442                 if (test_and_clear_bit(BEACON_BLINK_NEEDED,
3443                                         &base_vha->dpc_flags))
3444                         ha->isp_ops->beacon_blink(base_vha);
3445
3446                 qla2x00_do_dpc_all_vps(base_vha);
3447
3448                 ha->dpc_active = 0;
3449         } /* End of while(1) */
3450
3451         DEBUG(printk("scsi(%ld): DPC handler exiting\n", base_vha->host_no));
3452
3453         /*
3454          * Make sure that nobody tries to wake us up again.
3455          */
3456         ha->dpc_active = 0;
3457
3458         /* Cleanup any residual CTX SRBs. */
3459         qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
3460
3461         return 0;
3462 }
3463
3464 void
3465 qla2xxx_wake_dpc(struct scsi_qla_host *vha)
3466 {
3467         struct qla_hw_data *ha = vha->hw;
3468         struct task_struct *t = ha->dpc_thread;
3469
3470         if (!test_bit(UNLOADING, &vha->dpc_flags) && t)
3471                 wake_up_process(t);
3472 }
3473
3474 /*
3475 *  qla2x00_rst_aen
3476 *      Processes asynchronous reset.
3477 *
3478 * Input:
3479 *      ha  = adapter block pointer.
3480 */
3481 static void
3482 qla2x00_rst_aen(scsi_qla_host_t *vha)
3483 {
3484         if (vha->flags.online && !vha->flags.reset_active &&
3485             !atomic_read(&vha->loop_down_timer) &&
3486             !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))) {
3487                 do {
3488                         clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
3489
3490                         /*
3491                          * Issue marker command only when we are going to start
3492                          * the I/O.
3493                          */
3494                         vha->marker_needed = 1;
3495                 } while (!atomic_read(&vha->loop_down_timer) &&
3496                     (test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags)));
3497         }
3498 }
3499
3500 static void
3501 qla2x00_sp_free_dma(srb_t *sp)
3502 {
3503         struct scsi_cmnd *cmd = sp->cmd;
3504         struct qla_hw_data *ha = sp->fcport->vha->hw;
3505
3506         if (sp->flags & SRB_DMA_VALID) {
3507                 scsi_dma_unmap(cmd);
3508                 sp->flags &= ~SRB_DMA_VALID;
3509         }
3510
3511         if (sp->flags & SRB_CRC_PROT_DMA_VALID) {
3512                 dma_unmap_sg(&ha->pdev->dev, scsi_prot_sglist(cmd),
3513                     scsi_prot_sg_count(cmd), cmd->sc_data_direction);
3514                 sp->flags &= ~SRB_CRC_PROT_DMA_VALID;
3515         }
3516
3517         if (sp->flags & SRB_CRC_CTX_DSD_VALID) {
3518                 /* List assured to be having elements */
3519                 qla2x00_clean_dsd_pool(ha, sp);
3520                 sp->flags &= ~SRB_CRC_CTX_DSD_VALID;
3521         }
3522
3523         if (sp->flags & SRB_CRC_CTX_DMA_VALID) {
3524                 dma_pool_free(ha->dl_dma_pool, sp->ctx,
3525                     ((struct crc_context *)sp->ctx)->crc_ctx_dma);
3526                 sp->flags &= ~SRB_CRC_CTX_DMA_VALID;
3527         }
3528
3529         CMD_SP(cmd) = NULL;
3530 }
3531
3532 static void
3533 qla2x00_sp_final_compl(struct qla_hw_data *ha, srb_t *sp)
3534 {
3535         struct scsi_cmnd *cmd = sp->cmd;
3536
3537         qla2x00_sp_free_dma(sp);
3538
3539         if (sp->flags & SRB_FCP_CMND_DMA_VALID) {
3540                 struct ct6_dsd *ctx = sp->ctx;
3541                 dma_pool_free(ha->fcp_cmnd_dma_pool, ctx->fcp_cmnd,
3542                         ctx->fcp_cmnd_dma);
3543                 list_splice(&ctx->dsd_list, &ha->gbl_dsd_list);
3544                 ha->gbl_dsd_inuse -= ctx->dsd_use_cnt;
3545                 ha->gbl_dsd_avail += ctx->dsd_use_cnt;
3546                 mempool_free(sp->ctx, ha->ctx_mempool);
3547                 sp->ctx = NULL;
3548         }
3549