[SCSI] qla2xxx: Add check for null fcport references in qla2xxx_queuecommand.
[platform/adaptation/renesas_rcar/renesas_kernel.git] / drivers / scsi / qla2xxx / qla_os.c
1 /*
2  * QLogic Fibre Channel HBA Driver
3  * Copyright (c)  2003-2011 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  * error level for logging
40  */
41 int ql_errlev = ql_log_all;
42
43 int ql2xlogintimeout = 20;
44 module_param(ql2xlogintimeout, int, S_IRUGO);
45 MODULE_PARM_DESC(ql2xlogintimeout,
46                 "Login timeout value in seconds.");
47
48 int qlport_down_retry;
49 module_param(qlport_down_retry, int, S_IRUGO);
50 MODULE_PARM_DESC(qlport_down_retry,
51                 "Maximum number of command retries to a port that returns "
52                 "a PORT-DOWN status.");
53
54 int ql2xplogiabsentdevice;
55 module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR);
56 MODULE_PARM_DESC(ql2xplogiabsentdevice,
57                 "Option to enable PLOGI to devices that are not present after "
58                 "a Fabric scan.  This is needed for several broken switches. "
59                 "Default is 0 - no PLOGI. 1 - perfom PLOGI.");
60
61 int ql2xloginretrycount = 0;
62 module_param(ql2xloginretrycount, int, S_IRUGO);
63 MODULE_PARM_DESC(ql2xloginretrycount,
64                 "Specify an alternate value for the NVRAM login retry count.");
65
66 int ql2xallocfwdump = 1;
67 module_param(ql2xallocfwdump, int, S_IRUGO);
68 MODULE_PARM_DESC(ql2xallocfwdump,
69                 "Option to enable allocation of memory for a firmware dump "
70                 "during HBA initialization.  Memory allocation requirements "
71                 "vary by ISP type.  Default is 1 - allocate memory.");
72
73 int ql2xextended_error_logging;
74 module_param(ql2xextended_error_logging, int, S_IRUGO|S_IWUSR);
75 MODULE_PARM_DESC(ql2xextended_error_logging,
76                 "Option to enable extended error logging,\n"
77                 "\t\tDefault is 0 - no logging.  0x40000000 - Module Init & Probe.\n"
78                 "\t\t0x20000000 - Mailbox Cmnds. 0x10000000 - Device Discovery.\n"
79                 "\t\t0x08000000 - IO tracing.    0x04000000 - DPC Thread.\n"
80                 "\t\t0x02000000 - Async events.  0x01000000 - Timer routines.\n"
81                 "\t\t0x00800000 - User space.    0x00400000 - Task Management.\n"
82                 "\t\t0x00200000 - AER/EEH.       0x00100000 - Multi Q.\n"
83                 "\t\t0x00080000 - P3P Specific.  0x00040000 - Virtual Port.\n"
84                 "\t\t0x00020000 - Buffer Dump.   0x00010000 - Misc.\n"
85                 "\t\t0x7fffffff - For enabling all logs, can be too many logs.\n"
86                 "\t\t0x1e400000 - Preferred value for capturing essential "
87                 "debug information (equivalent to old "
88                 "ql2xextended_error_logging=1).\n"
89                 "\t\tDo LOGICAL OR of the value to enable more than one level");
90
91 int ql2xshiftctondsd = 6;
92 module_param(ql2xshiftctondsd, int, S_IRUGO);
93 MODULE_PARM_DESC(ql2xshiftctondsd,
94                 "Set to control shifting of command type processing "
95                 "based on total number of SG elements.");
96
97 static void qla2x00_free_device(scsi_qla_host_t *);
98
99 int ql2xfdmienable=1;
100 module_param(ql2xfdmienable, int, S_IRUGO);
101 MODULE_PARM_DESC(ql2xfdmienable,
102                 "Enables FDMI registrations. "
103                 "0 - no FDMI. Default is 1 - perform FDMI.");
104
105 #define MAX_Q_DEPTH    32
106 static int ql2xmaxqdepth = MAX_Q_DEPTH;
107 module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR);
108 MODULE_PARM_DESC(ql2xmaxqdepth,
109                 "Maximum queue depth to report for target devices.");
110
111 /* Do not change the value of this after module load */
112 int ql2xenabledif = 0;
113 module_param(ql2xenabledif, int, S_IRUGO|S_IWUSR);
114 MODULE_PARM_DESC(ql2xenabledif,
115                 " Enable T10-CRC-DIF "
116                 " Default is 0 - No DIF Support. 1 - Enable it"
117                 ", 2 - Enable DIF for all types, except Type 0.");
118
119 int ql2xenablehba_err_chk = 2;
120 module_param(ql2xenablehba_err_chk, int, S_IRUGO|S_IWUSR);
121 MODULE_PARM_DESC(ql2xenablehba_err_chk,
122                 " Enable T10-CRC-DIF Error isolation by HBA:\n"
123                 " Default is 1.\n"
124                 "  0 -- Error isolation disabled\n"
125                 "  1 -- Error isolation enabled only for DIX Type 0\n"
126                 "  2 -- Error isolation enabled for all Types\n");
127
128 int ql2xiidmaenable=1;
129 module_param(ql2xiidmaenable, int, S_IRUGO);
130 MODULE_PARM_DESC(ql2xiidmaenable,
131                 "Enables iIDMA settings "
132                 "Default is 1 - perform iIDMA. 0 - no iIDMA.");
133
134 int ql2xmaxqueues = 1;
135 module_param(ql2xmaxqueues, int, S_IRUGO);
136 MODULE_PARM_DESC(ql2xmaxqueues,
137                 "Enables MQ settings "
138                 "Default is 1 for single queue. Set it to number "
139                 "of queues in MQ mode.");
140
141 int ql2xmultique_tag;
142 module_param(ql2xmultique_tag, int, S_IRUGO);
143 MODULE_PARM_DESC(ql2xmultique_tag,
144                 "Enables CPU affinity settings for the driver "
145                 "Default is 0 for no affinity of request and response IO. "
146                 "Set it to 1 to turn on the cpu affinity.");
147
148 int ql2xfwloadbin;
149 module_param(ql2xfwloadbin, int, S_IRUGO|S_IWUSR);
150 MODULE_PARM_DESC(ql2xfwloadbin,
151                 "Option to specify location from which to load ISP firmware:.\n"
152                 " 2 -- load firmware via the request_firmware() (hotplug).\n"
153                 "      interface.\n"
154                 " 1 -- load firmware from flash.\n"
155                 " 0 -- use default semantics.\n");
156
157 int ql2xetsenable;
158 module_param(ql2xetsenable, int, S_IRUGO);
159 MODULE_PARM_DESC(ql2xetsenable,
160                 "Enables firmware ETS burst."
161                 "Default is 0 - skip ETS enablement.");
162
163 int ql2xdbwr = 1;
164 module_param(ql2xdbwr, int, S_IRUGO|S_IWUSR);
165 MODULE_PARM_DESC(ql2xdbwr,
166                 "Option to specify scheme for request queue posting.\n"
167                 " 0 -- Regular doorbell.\n"
168                 " 1 -- CAMRAM doorbell (faster).\n");
169
170 int ql2xtargetreset = 1;
171 module_param(ql2xtargetreset, int, S_IRUGO);
172 MODULE_PARM_DESC(ql2xtargetreset,
173                  "Enable target reset."
174                  "Default is 1 - use hw defaults.");
175
176 int ql2xgffidenable;
177 module_param(ql2xgffidenable, int, S_IRUGO);
178 MODULE_PARM_DESC(ql2xgffidenable,
179                 "Enables GFF_ID checks of port type. "
180                 "Default is 0 - Do not use GFF_ID information.");
181
182 int ql2xasynctmfenable;
183 module_param(ql2xasynctmfenable, int, S_IRUGO);
184 MODULE_PARM_DESC(ql2xasynctmfenable,
185                 "Enables issue of TM IOCBs asynchronously via IOCB mechanism"
186                 "Default is 0 - Issue TM IOCBs via mailbox mechanism.");
187
188 int ql2xdontresethba;
189 module_param(ql2xdontresethba, int, S_IRUGO|S_IWUSR);
190 MODULE_PARM_DESC(ql2xdontresethba,
191                 "Option to specify reset behaviour.\n"
192                 " 0 (Default) -- Reset on failure.\n"
193                 " 1 -- Do not reset on failure.\n");
194
195 uint ql2xmaxlun = MAX_LUNS;
196 module_param(ql2xmaxlun, uint, S_IRUGO);
197 MODULE_PARM_DESC(ql2xmaxlun,
198                 "Defines the maximum LU number to register with the SCSI "
199                 "midlayer. Default is 65535.");
200
201 int ql2xmdcapmask = 0x1F;
202 module_param(ql2xmdcapmask, int, S_IRUGO);
203 MODULE_PARM_DESC(ql2xmdcapmask,
204                 "Set the Minidump driver capture mask level. "
205                 "Default is 0x1F - Can be set to 0x3, 0x7, 0xF, 0x1F, 0x7F.");
206
207 int ql2xmdenable = 1;
208 module_param(ql2xmdenable, int, S_IRUGO);
209 MODULE_PARM_DESC(ql2xmdenable,
210                 "Enable/disable MiniDump. "
211                 "0 - MiniDump disabled. "
212                 "1 (Default) - MiniDump enabled.");
213
214 /*
215  * SCSI host template entry points
216  */
217 static int qla2xxx_slave_configure(struct scsi_device * device);
218 static int qla2xxx_slave_alloc(struct scsi_device *);
219 static int qla2xxx_scan_finished(struct Scsi_Host *, unsigned long time);
220 static void qla2xxx_scan_start(struct Scsi_Host *);
221 static void qla2xxx_slave_destroy(struct scsi_device *);
222 static int qla2xxx_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *cmd);
223 static int qla2xxx_eh_abort(struct scsi_cmnd *);
224 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
225 static int qla2xxx_eh_target_reset(struct scsi_cmnd *);
226 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
227 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
228
229 static int qla2x00_change_queue_depth(struct scsi_device *, int, int);
230 static int qla2x00_change_queue_type(struct scsi_device *, int);
231
232 struct scsi_host_template qla2xxx_driver_template = {
233         .module                 = THIS_MODULE,
234         .name                   = QLA2XXX_DRIVER_NAME,
235         .queuecommand           = qla2xxx_queuecommand,
236
237         .eh_abort_handler       = qla2xxx_eh_abort,
238         .eh_device_reset_handler = qla2xxx_eh_device_reset,
239         .eh_target_reset_handler = qla2xxx_eh_target_reset,
240         .eh_bus_reset_handler   = qla2xxx_eh_bus_reset,
241         .eh_host_reset_handler  = qla2xxx_eh_host_reset,
242
243         .slave_configure        = qla2xxx_slave_configure,
244
245         .slave_alloc            = qla2xxx_slave_alloc,
246         .slave_destroy          = qla2xxx_slave_destroy,
247         .scan_finished          = qla2xxx_scan_finished,
248         .scan_start             = qla2xxx_scan_start,
249         .change_queue_depth     = qla2x00_change_queue_depth,
250         .change_queue_type      = qla2x00_change_queue_type,
251         .this_id                = -1,
252         .cmd_per_lun            = 3,
253         .use_clustering         = ENABLE_CLUSTERING,
254         .sg_tablesize           = SG_ALL,
255
256         .max_sectors            = 0xFFFF,
257         .shost_attrs            = qla2x00_host_attrs,
258 };
259
260 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
261 struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
262
263 /* TODO Convert to inlines
264  *
265  * Timer routines
266  */
267
268 __inline__ void
269 qla2x00_start_timer(scsi_qla_host_t *vha, void *func, unsigned long interval)
270 {
271         init_timer(&vha->timer);
272         vha->timer.expires = jiffies + interval * HZ;
273         vha->timer.data = (unsigned long)vha;
274         vha->timer.function = (void (*)(unsigned long))func;
275         add_timer(&vha->timer);
276         vha->timer_active = 1;
277 }
278
279 static inline void
280 qla2x00_restart_timer(scsi_qla_host_t *vha, unsigned long interval)
281 {
282         /* Currently used for 82XX only. */
283         if (vha->device_flags & DFLG_DEV_FAILED) {
284                 ql_dbg(ql_dbg_timer, vha, 0x600d,
285                     "Device in a failed state, returning.\n");
286                 return;
287         }
288
289         mod_timer(&vha->timer, jiffies + interval * HZ);
290 }
291
292 static __inline__ void
293 qla2x00_stop_timer(scsi_qla_host_t *vha)
294 {
295         del_timer_sync(&vha->timer);
296         vha->timer_active = 0;
297 }
298
299 static int qla2x00_do_dpc(void *data);
300
301 static void qla2x00_rst_aen(scsi_qla_host_t *);
302
303 static int qla2x00_mem_alloc(struct qla_hw_data *, uint16_t, uint16_t,
304         struct req_que **, struct rsp_que **);
305 static void qla2x00_free_fw_dump(struct qla_hw_data *);
306 static void qla2x00_mem_free(struct qla_hw_data *);
307 static void qla2x00_sp_free_dma(srb_t *);
308
309 /* -------------------------------------------------------------------------- */
310 static int qla2x00_alloc_queues(struct qla_hw_data *ha)
311 {
312         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
313         ha->req_q_map = kzalloc(sizeof(struct req_que *) * ha->max_req_queues,
314                                 GFP_KERNEL);
315         if (!ha->req_q_map) {
316                 ql_log(ql_log_fatal, vha, 0x003b,
317                     "Unable to allocate memory for request queue ptrs.\n");
318                 goto fail_req_map;
319         }
320
321         ha->rsp_q_map = kzalloc(sizeof(struct rsp_que *) * ha->max_rsp_queues,
322                                 GFP_KERNEL);
323         if (!ha->rsp_q_map) {
324                 ql_log(ql_log_fatal, vha, 0x003c,
325                     "Unable to allocate memory for response queue ptrs.\n");
326                 goto fail_rsp_map;
327         }
328         set_bit(0, ha->rsp_qid_map);
329         set_bit(0, ha->req_qid_map);
330         return 1;
331
332 fail_rsp_map:
333         kfree(ha->req_q_map);
334         ha->req_q_map = NULL;
335 fail_req_map:
336         return -ENOMEM;
337 }
338
339 static void qla2x00_free_req_que(struct qla_hw_data *ha, struct req_que *req)
340 {
341         if (req && req->ring)
342                 dma_free_coherent(&ha->pdev->dev,
343                 (req->length + 1) * sizeof(request_t),
344                 req->ring, req->dma);
345
346         kfree(req);
347         req = NULL;
348 }
349
350 static void qla2x00_free_rsp_que(struct qla_hw_data *ha, struct rsp_que *rsp)
351 {
352         if (rsp && rsp->ring)
353                 dma_free_coherent(&ha->pdev->dev,
354                 (rsp->length + 1) * sizeof(response_t),
355                 rsp->ring, rsp->dma);
356
357         kfree(rsp);
358         rsp = NULL;
359 }
360
361 static void qla2x00_free_queues(struct qla_hw_data *ha)
362 {
363         struct req_que *req;
364         struct rsp_que *rsp;
365         int cnt;
366
367         for (cnt = 0; cnt < ha->max_req_queues; cnt++) {
368                 req = ha->req_q_map[cnt];
369                 qla2x00_free_req_que(ha, req);
370         }
371         kfree(ha->req_q_map);
372         ha->req_q_map = NULL;
373
374         for (cnt = 0; cnt < ha->max_rsp_queues; cnt++) {
375                 rsp = ha->rsp_q_map[cnt];
376                 qla2x00_free_rsp_que(ha, rsp);
377         }
378         kfree(ha->rsp_q_map);
379         ha->rsp_q_map = NULL;
380 }
381
382 static int qla25xx_setup_mode(struct scsi_qla_host *vha)
383 {
384         uint16_t options = 0;
385         int ques, req, ret;
386         struct qla_hw_data *ha = vha->hw;
387
388         if (!(ha->fw_attributes & BIT_6)) {
389                 ql_log(ql_log_warn, vha, 0x00d8,
390                     "Firmware is not multi-queue capable.\n");
391                 goto fail;
392         }
393         if (ql2xmultique_tag) {
394                 /* create a request queue for IO */
395                 options |= BIT_7;
396                 req = qla25xx_create_req_que(ha, options, 0, 0, -1,
397                         QLA_DEFAULT_QUE_QOS);
398                 if (!req) {
399                         ql_log(ql_log_warn, vha, 0x00e0,
400                             "Failed to create request queue.\n");
401                         goto fail;
402                 }
403                 ha->wq = alloc_workqueue("qla2xxx_wq", WQ_MEM_RECLAIM, 1);
404                 vha->req = ha->req_q_map[req];
405                 options |= BIT_1;
406                 for (ques = 1; ques < ha->max_rsp_queues; ques++) {
407                         ret = qla25xx_create_rsp_que(ha, options, 0, 0, req);
408                         if (!ret) {
409                                 ql_log(ql_log_warn, vha, 0x00e8,
410                                     "Failed to create response queue.\n");
411                                 goto fail2;
412                         }
413                 }
414                 ha->flags.cpu_affinity_enabled = 1;
415                 ql_dbg(ql_dbg_multiq, vha, 0xc007,
416                     "CPU affinity mode enalbed, "
417                     "no. of response queues:%d no. of request queues:%d.\n",
418                     ha->max_rsp_queues, ha->max_req_queues);
419                 ql_dbg(ql_dbg_init, vha, 0x00e9,
420                     "CPU affinity mode enalbed, "
421                     "no. of response queues:%d no. of request queues:%d.\n",
422                     ha->max_rsp_queues, ha->max_req_queues);
423         }
424         return 0;
425 fail2:
426         qla25xx_delete_queues(vha);
427         destroy_workqueue(ha->wq);
428         ha->wq = NULL;
429         vha->req = ha->req_q_map[0];
430 fail:
431         ha->mqenable = 0;
432         kfree(ha->req_q_map);
433         kfree(ha->rsp_q_map);
434         ha->max_req_queues = ha->max_rsp_queues = 1;
435         return 1;
436 }
437
438 static char *
439 qla2x00_pci_info_str(struct scsi_qla_host *vha, char *str)
440 {
441         struct qla_hw_data *ha = vha->hw;
442         static char *pci_bus_modes[] = {
443                 "33", "66", "100", "133",
444         };
445         uint16_t pci_bus;
446
447         strcpy(str, "PCI");
448         pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
449         if (pci_bus) {
450                 strcat(str, "-X (");
451                 strcat(str, pci_bus_modes[pci_bus]);
452         } else {
453                 pci_bus = (ha->pci_attr & BIT_8) >> 8;
454                 strcat(str, " (");
455                 strcat(str, pci_bus_modes[pci_bus]);
456         }
457         strcat(str, " MHz)");
458
459         return (str);
460 }
461
462 static char *
463 qla24xx_pci_info_str(struct scsi_qla_host *vha, char *str)
464 {
465         static char *pci_bus_modes[] = { "33", "66", "100", "133", };
466         struct qla_hw_data *ha = vha->hw;
467         uint32_t pci_bus;
468         int pcie_reg;
469
470         pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
471         if (pcie_reg) {
472                 char lwstr[6];
473                 uint16_t pcie_lstat, lspeed, lwidth;
474
475                 pcie_reg += 0x12;
476                 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
477                 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
478                 lwidth = (pcie_lstat &
479                     (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
480
481                 strcpy(str, "PCIe (");
482                 if (lspeed == 1)
483                         strcat(str, "2.5GT/s ");
484                 else if (lspeed == 2)
485                         strcat(str, "5.0GT/s ");
486                 else
487                         strcat(str, "<unknown> ");
488                 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
489                 strcat(str, lwstr);
490
491                 return str;
492         }
493
494         strcpy(str, "PCI");
495         pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
496         if (pci_bus == 0 || pci_bus == 8) {
497                 strcat(str, " (");
498                 strcat(str, pci_bus_modes[pci_bus >> 3]);
499         } else {
500                 strcat(str, "-X ");
501                 if (pci_bus & BIT_2)
502                         strcat(str, "Mode 2");
503                 else
504                         strcat(str, "Mode 1");
505                 strcat(str, " (");
506                 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
507         }
508         strcat(str, " MHz)");
509
510         return str;
511 }
512
513 static char *
514 qla2x00_fw_version_str(struct scsi_qla_host *vha, char *str)
515 {
516         char un_str[10];
517         struct qla_hw_data *ha = vha->hw;
518
519         sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
520             ha->fw_minor_version,
521             ha->fw_subminor_version);
522
523         if (ha->fw_attributes & BIT_9) {
524                 strcat(str, "FLX");
525                 return (str);
526         }
527
528         switch (ha->fw_attributes & 0xFF) {
529         case 0x7:
530                 strcat(str, "EF");
531                 break;
532         case 0x17:
533                 strcat(str, "TP");
534                 break;
535         case 0x37:
536                 strcat(str, "IP");
537                 break;
538         case 0x77:
539                 strcat(str, "VI");
540                 break;
541         default:
542                 sprintf(un_str, "(%x)", ha->fw_attributes);
543                 strcat(str, un_str);
544                 break;
545         }
546         if (ha->fw_attributes & 0x100)
547                 strcat(str, "X");
548
549         return (str);
550 }
551
552 static char *
553 qla24xx_fw_version_str(struct scsi_qla_host *vha, char *str)
554 {
555         struct qla_hw_data *ha = vha->hw;
556
557         sprintf(str, "%d.%02d.%02d (%x)", ha->fw_major_version,
558             ha->fw_minor_version, ha->fw_subminor_version, ha->fw_attributes);
559         return str;
560 }
561
562 static inline srb_t *
563 qla2x00_get_new_sp(scsi_qla_host_t *vha, fc_port_t *fcport,
564         struct scsi_cmnd *cmd)
565 {
566         srb_t *sp;
567         struct qla_hw_data *ha = vha->hw;
568
569         sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
570         if (!sp) {
571                 ql_log(ql_log_warn, vha, 0x3006,
572                     "Memory allocation failed for sp.\n");
573                 return sp;
574         }
575
576         atomic_set(&sp->ref_count, 1);
577         sp->fcport = fcport;
578         sp->cmd = cmd;
579         sp->flags = 0;
580         CMD_SP(cmd) = (void *)sp;
581         sp->ctx = NULL;
582
583         return sp;
584 }
585
586 static int
587 qla2xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
588 {
589         scsi_qla_host_t *vha = shost_priv(host);
590         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
591         struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
592         struct qla_hw_data *ha = vha->hw;
593         struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
594         srb_t *sp;
595         int rval;
596
597         if (ha->flags.eeh_busy) {
598                 if (ha->flags.pci_channel_io_perm_failure) {
599                         ql_dbg(ql_dbg_io, vha, 0x3001,
600                             "PCI Channel IO permanent failure, exiting "
601                             "cmd=%p.\n", cmd);
602                         cmd->result = DID_NO_CONNECT << 16;
603                 } else {
604                         ql_dbg(ql_dbg_io, vha, 0x3002,
605                             "EEH_Busy, Requeuing the cmd=%p.\n", cmd);
606                         cmd->result = DID_REQUEUE << 16;
607                 }
608                 goto qc24_fail_command;
609         }
610
611         rval = fc_remote_port_chkready(rport);
612         if (rval) {
613                 cmd->result = rval;
614                 ql_dbg(ql_dbg_io, vha, 0x3003,
615                     "fc_remote_port_chkready failed for cmd=%p, rval=0x%x.\n",
616                     cmd, rval);
617                 goto qc24_fail_command;
618         }
619
620         if (!vha->flags.difdix_supported &&
621                 scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) {
622                         ql_dbg(ql_dbg_io, vha, 0x3004,
623                             "DIF Cap not reg, fail DIF capable cmd's:%p.\n",
624                             cmd);
625                         cmd->result = DID_NO_CONNECT << 16;
626                         goto qc24_fail_command;
627         }
628
629         if (!fcport) {
630                 cmd->result = DID_NO_CONNECT << 16;
631                 goto qc24_fail_command;
632         }
633
634         if (atomic_read(&fcport->state) != FCS_ONLINE) {
635                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
636                         atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
637                         ql_dbg(ql_dbg_io, vha, 0x3005,
638                             "Returning DNC, fcport_state=%d loop_state=%d.\n",
639                             atomic_read(&fcport->state),
640                             atomic_read(&base_vha->loop_state));
641                         cmd->result = DID_NO_CONNECT << 16;
642                         goto qc24_fail_command;
643                 }
644                 goto qc24_target_busy;
645         }
646
647         sp = qla2x00_get_new_sp(base_vha, fcport, cmd);
648         if (!sp)
649                 goto qc24_host_busy;
650
651         rval = ha->isp_ops->start_scsi(sp);
652         if (rval != QLA_SUCCESS) {
653                 ql_dbg(ql_dbg_io, vha, 0x3013,
654                     "Start scsi failed rval=%d for cmd=%p.\n", rval, cmd);
655                 goto qc24_host_busy_free_sp;
656         }
657
658         return 0;
659
660 qc24_host_busy_free_sp:
661         qla2x00_sp_free_dma(sp);
662         mempool_free(sp, ha->srb_mempool);
663
664 qc24_host_busy:
665         return SCSI_MLQUEUE_HOST_BUSY;
666
667 qc24_target_busy:
668         return SCSI_MLQUEUE_TARGET_BUSY;
669
670 qc24_fail_command:
671         cmd->scsi_done(cmd);
672
673         return 0;
674 }
675
676 /*
677  * qla2x00_eh_wait_on_command
678  *    Waits for the command to be returned by the Firmware for some
679  *    max time.
680  *
681  * Input:
682  *    cmd = Scsi Command to wait on.
683  *
684  * Return:
685  *    Not Found : 0
686  *    Found : 1
687  */
688 static int
689 qla2x00_eh_wait_on_command(struct scsi_cmnd *cmd)
690 {
691 #define ABORT_POLLING_PERIOD    1000
692 #define ABORT_WAIT_ITER         ((10 * 1000) / (ABORT_POLLING_PERIOD))
693         unsigned long wait_iter = ABORT_WAIT_ITER;
694         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
695         struct qla_hw_data *ha = vha->hw;
696         int ret = QLA_SUCCESS;
697
698         if (unlikely(pci_channel_offline(ha->pdev)) || ha->flags.eeh_busy) {
699                 ql_dbg(ql_dbg_taskm, vha, 0x8005,
700                     "Return:eh_wait.\n");
701                 return ret;
702         }
703
704         while (CMD_SP(cmd) && wait_iter--) {
705                 msleep(ABORT_POLLING_PERIOD);
706         }
707         if (CMD_SP(cmd))
708                 ret = QLA_FUNCTION_FAILED;
709
710         return ret;
711 }
712
713 /*
714  * qla2x00_wait_for_hba_online
715  *    Wait till the HBA is online after going through
716  *    <= MAX_RETRIES_OF_ISP_ABORT  or
717  *    finally HBA is disabled ie marked offline
718  *
719  * Input:
720  *     ha - pointer to host adapter structure
721  *
722  * Note:
723  *    Does context switching-Release SPIN_LOCK
724  *    (if any) before calling this routine.
725  *
726  * Return:
727  *    Success (Adapter is online) : 0
728  *    Failed  (Adapter is offline/disabled) : 1
729  */
730 int
731 qla2x00_wait_for_hba_online(scsi_qla_host_t *vha)
732 {
733         int             return_status;
734         unsigned long   wait_online;
735         struct qla_hw_data *ha = vha->hw;
736         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
737
738         wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
739         while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
740             test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
741             test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
742             ha->dpc_active) && time_before(jiffies, wait_online)) {
743
744                 msleep(1000);
745         }
746         if (base_vha->flags.online)
747                 return_status = QLA_SUCCESS;
748         else
749                 return_status = QLA_FUNCTION_FAILED;
750
751         return (return_status);
752 }
753
754 /*
755  * qla2x00_wait_for_reset_ready
756  *    Wait till the HBA is online after going through
757  *    <= MAX_RETRIES_OF_ISP_ABORT  or
758  *    finally HBA is disabled ie marked offline or flash
759  *    operations are in progress.
760  *
761  * Input:
762  *     ha - pointer to host adapter structure
763  *
764  * Note:
765  *    Does context switching-Release SPIN_LOCK
766  *    (if any) before calling this routine.
767  *
768  * Return:
769  *    Success (Adapter is online/no flash ops) : 0
770  *    Failed  (Adapter is offline/disabled/flash ops in progress) : 1
771  */
772 static int
773 qla2x00_wait_for_reset_ready(scsi_qla_host_t *vha)
774 {
775         int             return_status;
776         unsigned long   wait_online;
777         struct qla_hw_data *ha = vha->hw;
778         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
779
780         wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
781         while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
782             test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
783             test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
784             ha->optrom_state != QLA_SWAITING ||
785             ha->dpc_active) && time_before(jiffies, wait_online))
786                 msleep(1000);
787
788         if (base_vha->flags.online &&  ha->optrom_state == QLA_SWAITING)
789                 return_status = QLA_SUCCESS;
790         else
791                 return_status = QLA_FUNCTION_FAILED;
792
793         ql_dbg(ql_dbg_taskm, vha, 0x8019,
794             "%s return status=%d.\n", __func__, return_status);
795
796         return return_status;
797 }
798
799 int
800 qla2x00_wait_for_chip_reset(scsi_qla_host_t *vha)
801 {
802         int             return_status;
803         unsigned long   wait_reset;
804         struct qla_hw_data *ha = vha->hw;
805         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
806
807         wait_reset = jiffies + (MAX_LOOP_TIMEOUT * HZ);
808         while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
809             test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
810             test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
811             ha->dpc_active) && time_before(jiffies, wait_reset)) {
812
813                 msleep(1000);
814
815                 if (!test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags) &&
816                     ha->flags.chip_reset_done)
817                         break;
818         }
819         if (ha->flags.chip_reset_done)
820                 return_status = QLA_SUCCESS;
821         else
822                 return_status = QLA_FUNCTION_FAILED;
823
824         return return_status;
825 }
826
827 static void
828 sp_get(struct srb *sp)
829 {
830         atomic_inc(&sp->ref_count);
831 }
832
833 /**************************************************************************
834 * qla2xxx_eh_abort
835 *
836 * Description:
837 *    The abort function will abort the specified command.
838 *
839 * Input:
840 *    cmd = Linux SCSI command packet to be aborted.
841 *
842 * Returns:
843 *    Either SUCCESS or FAILED.
844 *
845 * Note:
846 *    Only return FAILED if command not returned by firmware.
847 **************************************************************************/
848 static int
849 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
850 {
851         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
852         srb_t *sp;
853         int ret;
854         unsigned int id, lun;
855         unsigned long flags;
856         int wait = 0;
857         struct qla_hw_data *ha = vha->hw;
858
859         if (!CMD_SP(cmd))
860                 return SUCCESS;
861
862         ret = fc_block_scsi_eh(cmd);
863         if (ret != 0)
864                 return ret;
865         ret = SUCCESS;
866
867         id = cmd->device->id;
868         lun = cmd->device->lun;
869
870         spin_lock_irqsave(&ha->hardware_lock, flags);
871         sp = (srb_t *) CMD_SP(cmd);
872         if (!sp) {
873                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
874                 return SUCCESS;
875         }
876
877         ql_dbg(ql_dbg_taskm, vha, 0x8002,
878             "Aborting from RISC nexus=%ld:%d:%d sp=%p cmd=%p\n",
879             vha->host_no, id, lun, sp, cmd);
880
881         /* Get a reference to the sp and drop the lock.*/
882         sp_get(sp);
883
884         spin_unlock_irqrestore(&ha->hardware_lock, flags);
885         if (ha->isp_ops->abort_command(sp)) {
886                 ret = FAILED;
887                 ql_dbg(ql_dbg_taskm, vha, 0x8003,
888                     "Abort command mbx failed cmd=%p.\n", cmd);
889         } else {
890                 ql_dbg(ql_dbg_taskm, vha, 0x8004,
891                     "Abort command mbx success cmd=%p.\n", cmd);
892                 wait = 1;
893         }
894
895         spin_lock_irqsave(&ha->hardware_lock, flags);
896         qla2x00_sp_compl(ha, sp);
897         spin_unlock_irqrestore(&ha->hardware_lock, flags);
898
899         /* Did the command return during mailbox execution? */
900         if (ret == FAILED && !CMD_SP(cmd))
901                 ret = SUCCESS;
902
903         /* Wait for the command to be returned. */
904         if (wait) {
905                 if (qla2x00_eh_wait_on_command(cmd) != QLA_SUCCESS) {
906                         ql_log(ql_log_warn, vha, 0x8006,
907                             "Abort handler timed out cmd=%p.\n", cmd);
908                         ret = FAILED;
909                 }
910         }
911
912         ql_log(ql_log_info, vha, 0x801c,
913             "Abort command issued nexus=%ld:%d:%d --  %d %x.\n",
914             vha->host_no, id, lun, wait, ret);
915
916         return ret;
917 }
918
919 int
920 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *vha, unsigned int t,
921         unsigned int l, enum nexus_wait_type type)
922 {
923         int cnt, match, status;
924         unsigned long flags;
925         struct qla_hw_data *ha = vha->hw;
926         struct req_que *req;
927         srb_t *sp;
928
929         status = QLA_SUCCESS;
930
931         spin_lock_irqsave(&ha->hardware_lock, flags);
932         req = vha->req;
933         for (cnt = 1; status == QLA_SUCCESS &&
934                 cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
935                 sp = req->outstanding_cmds[cnt];
936                 if (!sp)
937                         continue;
938                 if ((sp->ctx) && !IS_PROT_IO(sp))
939                         continue;
940                 if (vha->vp_idx != sp->fcport->vha->vp_idx)
941                         continue;
942                 match = 0;
943                 switch (type) {
944                 case WAIT_HOST:
945                         match = 1;
946                         break;
947                 case WAIT_TARGET:
948                         match = sp->cmd->device->id == t;
949                         break;
950                 case WAIT_LUN:
951                         match = (sp->cmd->device->id == t &&
952                                 sp->cmd->device->lun == l);
953                         break;
954                 }
955                 if (!match)
956                         continue;
957
958                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
959                 status = qla2x00_eh_wait_on_command(sp->cmd);
960                 spin_lock_irqsave(&ha->hardware_lock, flags);
961         }
962         spin_unlock_irqrestore(&ha->hardware_lock, flags);
963
964         return status;
965 }
966
967 static char *reset_errors[] = {
968         "HBA not online",
969         "HBA not ready",
970         "Task management failed",
971         "Waiting for command completions",
972 };
973
974 static int
975 __qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type,
976     struct scsi_cmnd *cmd, int (*do_reset)(struct fc_port *, unsigned int, int))
977 {
978         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
979         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
980         int err;
981
982         if (!fcport) {
983                 return FAILED;
984         }
985
986         err = fc_block_scsi_eh(cmd);
987         if (err != 0)
988                 return err;
989
990         ql_log(ql_log_info, vha, 0x8009,
991             "%s RESET ISSUED nexus=%ld:%d:%d cmd=%p.\n", name, vha->host_no,
992             cmd->device->id, cmd->device->lun, cmd);
993
994         err = 0;
995         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
996                 ql_log(ql_log_warn, vha, 0x800a,
997                     "Wait for hba online failed for cmd=%p.\n", cmd);
998                 goto eh_reset_failed;
999         }
1000         err = 2;
1001         if (do_reset(fcport, cmd->device->lun, cmd->request->cpu + 1)
1002                 != QLA_SUCCESS) {
1003                 ql_log(ql_log_warn, vha, 0x800c,
1004                     "do_reset failed for cmd=%p.\n", cmd);
1005                 goto eh_reset_failed;
1006         }
1007         err = 3;
1008         if (qla2x00_eh_wait_for_pending_commands(vha, cmd->device->id,
1009             cmd->device->lun, type) != QLA_SUCCESS) {
1010                 ql_log(ql_log_warn, vha, 0x800d,
1011                     "wait for peding cmds failed for cmd=%p.\n", cmd);
1012                 goto eh_reset_failed;
1013         }
1014
1015         ql_log(ql_log_info, vha, 0x800e,
1016             "%s RESET SUCCEEDED nexus:%ld:%d:%d cmd=%p.\n", name,
1017             vha->host_no, cmd->device->id, cmd->device->lun, cmd);
1018
1019         return SUCCESS;
1020
1021 eh_reset_failed:
1022         ql_log(ql_log_info, vha, 0x800f,
1023             "%s RESET FAILED: %s nexus=%ld:%d:%d cmd=%p.\n", name,
1024             reset_errors[err], vha->host_no, cmd->device->id, cmd->device->lun,
1025             cmd);
1026         return FAILED;
1027 }
1028
1029 static int
1030 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
1031 {
1032         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1033         struct qla_hw_data *ha = vha->hw;
1034
1035         return __qla2xxx_eh_generic_reset("DEVICE", WAIT_LUN, cmd,
1036             ha->isp_ops->lun_reset);
1037 }
1038
1039 static int
1040 qla2xxx_eh_target_reset(struct scsi_cmnd *cmd)
1041 {
1042         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1043         struct qla_hw_data *ha = vha->hw;
1044
1045         return __qla2xxx_eh_generic_reset("TARGET", WAIT_TARGET, cmd,
1046             ha->isp_ops->target_reset);
1047 }
1048
1049 /**************************************************************************
1050 * qla2xxx_eh_bus_reset
1051 *
1052 * Description:
1053 *    The bus reset function will reset the bus and abort any executing
1054 *    commands.
1055 *
1056 * Input:
1057 *    cmd = Linux SCSI command packet of the command that cause the
1058 *          bus reset.
1059 *
1060 * Returns:
1061 *    SUCCESS/FAILURE (defined as macro in scsi.h).
1062 *
1063 **************************************************************************/
1064 static int
1065 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
1066 {
1067         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1068         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
1069         int ret = FAILED;
1070         unsigned int id, lun;
1071
1072         id = cmd->device->id;
1073         lun = cmd->device->lun;
1074
1075         if (!fcport) {
1076                 return ret;
1077         }
1078
1079         ret = fc_block_scsi_eh(cmd);
1080         if (ret != 0)
1081                 return ret;
1082         ret = FAILED;
1083
1084         ql_log(ql_log_info, vha, 0x8012,
1085             "BUS RESET ISSUED nexus=%ld:%d%d.\n", vha->host_no, id, lun);
1086
1087         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
1088                 ql_log(ql_log_fatal, vha, 0x8013,
1089                     "Wait for hba online failed board disabled.\n");
1090                 goto eh_bus_reset_done;
1091         }
1092
1093         if (qla2x00_loop_reset(vha) == QLA_SUCCESS)
1094                 ret = SUCCESS;
1095
1096         if (ret == FAILED)
1097                 goto eh_bus_reset_done;
1098
1099         /* Flush outstanding commands. */
1100         if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST) !=
1101             QLA_SUCCESS) {
1102                 ql_log(ql_log_warn, vha, 0x8014,
1103                     "Wait for pending commands failed.\n");
1104                 ret = FAILED;
1105         }
1106
1107 eh_bus_reset_done:
1108         ql_log(ql_log_warn, vha, 0x802b,
1109             "BUS RESET %s nexus=%ld:%d:%d.\n",
1110             (ret == FAILED) ? "FAILED" : "SUCCEDED", vha->host_no, id, lun);
1111
1112         return ret;
1113 }
1114
1115 /**************************************************************************
1116 * qla2xxx_eh_host_reset
1117 *
1118 * Description:
1119 *    The reset function will reset the Adapter.
1120 *
1121 * Input:
1122 *      cmd = Linux SCSI command packet of the command that cause the
1123 *            adapter reset.
1124 *
1125 * Returns:
1126 *      Either SUCCESS or FAILED.
1127 *
1128 * Note:
1129 **************************************************************************/
1130 static int
1131 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
1132 {
1133         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1134         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
1135         struct qla_hw_data *ha = vha->hw;
1136         int ret = FAILED;
1137         unsigned int id, lun;
1138         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
1139
1140         id = cmd->device->id;
1141         lun = cmd->device->lun;
1142
1143         if (!fcport) {
1144                 return ret;
1145         }
1146
1147         ret = fc_block_scsi_eh(cmd);
1148         if (ret != 0)
1149                 return ret;
1150         ret = FAILED;
1151
1152         ql_log(ql_log_info, vha, 0x8018,
1153             "ADAPTER RESET ISSUED nexus=%ld:%d:%d.\n", vha->host_no, id, lun);
1154
1155         if (qla2x00_wait_for_reset_ready(vha) != QLA_SUCCESS)
1156                 goto eh_host_reset_lock;
1157
1158         if (vha != base_vha) {
1159                 if (qla2x00_vp_abort_isp(vha))
1160                         goto eh_host_reset_lock;
1161         } else {
1162                 if (IS_QLA82XX(vha->hw)) {
1163                         if (!qla82xx_fcoe_ctx_reset(vha)) {
1164                                 /* Ctx reset success */
1165                                 ret = SUCCESS;
1166                                 goto eh_host_reset_lock;
1167                         }
1168                         /* fall thru if ctx reset failed */
1169                 }
1170                 if (ha->wq)
1171                         flush_workqueue(ha->wq);
1172
1173                 set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1174                 if (ha->isp_ops->abort_isp(base_vha)) {
1175                         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1176                         /* failed. schedule dpc to try */
1177                         set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags);
1178
1179                         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
1180                                 ql_log(ql_log_warn, vha, 0x802a,
1181                                     "wait for hba online failed.\n");
1182                                 goto eh_host_reset_lock;
1183                         }
1184                 }
1185                 clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1186         }
1187
1188         /* Waiting for command to be returned to OS.*/
1189         if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST) ==
1190                 QLA_SUCCESS)
1191                 ret = SUCCESS;
1192
1193 eh_host_reset_lock:
1194         ql_log(ql_log_info, vha, 0x8017,
1195             "ADAPTER RESET %s nexus=%ld:%d:%d.\n",
1196             (ret == FAILED) ? "FAILED" : "SUCCEEDED", vha->host_no, id, lun);
1197
1198         return ret;
1199 }
1200
1201 /*
1202 * qla2x00_loop_reset
1203 *      Issue loop reset.
1204 *
1205 * Input:
1206 *      ha = adapter block pointer.
1207 *
1208 * Returns:
1209 *      0 = success
1210 */
1211 int
1212 qla2x00_loop_reset(scsi_qla_host_t *vha)
1213 {
1214         int ret;
1215         struct fc_port *fcport;
1216         struct qla_hw_data *ha = vha->hw;
1217
1218         if (ql2xtargetreset == 1 && ha->flags.enable_target_reset) {
1219                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
1220                         if (fcport->port_type != FCT_TARGET)
1221                                 continue;
1222
1223                         ret = ha->isp_ops->target_reset(fcport, 0, 0);
1224                         if (ret != QLA_SUCCESS) {
1225                                 ql_dbg(ql_dbg_taskm, vha, 0x802c,
1226                                     "Bus Reset failed: Target Reset=%d "
1227                                     "d_id=%x.\n", ret, fcport->d_id.b24);
1228                         }
1229                 }
1230         }
1231
1232         if (ha->flags.enable_lip_full_login && !IS_QLA8XXX_TYPE(ha)) {
1233                 ret = qla2x00_full_login_lip(vha);
1234                 if (ret != QLA_SUCCESS) {
1235                         ql_dbg(ql_dbg_taskm, vha, 0x802d,
1236                             "full_login_lip=%d.\n", ret);
1237                 }
1238                 atomic_set(&vha->loop_state, LOOP_DOWN);
1239                 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1240                 qla2x00_mark_all_devices_lost(vha, 0);
1241         }
1242
1243         if (ha->flags.enable_lip_reset) {
1244                 ret = qla2x00_lip_reset(vha);
1245                 if (ret != QLA_SUCCESS)
1246                         ql_dbg(ql_dbg_taskm, vha, 0x802e,
1247                             "lip_reset failed (%d).\n", ret);
1248         }
1249
1250         /* Issue marker command only when we are going to start the I/O */
1251         vha->marker_needed = 1;
1252
1253         return QLA_SUCCESS;
1254 }
1255
1256 void
1257 qla2x00_abort_all_cmds(scsi_qla_host_t *vha, int res)
1258 {
1259         int que, cnt;
1260         unsigned long flags;
1261         srb_t *sp;
1262         struct srb_ctx *ctx;
1263         struct qla_hw_data *ha = vha->hw;
1264         struct req_que *req;
1265
1266         spin_lock_irqsave(&ha->hardware_lock, flags);
1267         for (que = 0; que < ha->max_req_queues; que++) {
1268                 req = ha->req_q_map[que];
1269                 if (!req)
1270                         continue;
1271                 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
1272                         sp = req->outstanding_cmds[cnt];
1273                         if (sp) {
1274                                 req->outstanding_cmds[cnt] = NULL;
1275                                 if (!sp->ctx ||
1276                                         (sp->flags & SRB_FCP_CMND_DMA_VALID) ||
1277                                         IS_PROT_IO(sp)) {
1278                                         sp->cmd->result = res;
1279                                         qla2x00_sp_compl(ha, sp);
1280                                 } else {
1281                                         ctx = sp->ctx;
1282                                         if (ctx->type == SRB_ELS_CMD_RPT ||
1283                                             ctx->type == SRB_ELS_CMD_HST ||
1284                                             ctx->type == SRB_CT_CMD) {
1285                                                 struct fc_bsg_job *bsg_job =
1286                                                     ctx->u.bsg_job;
1287                                                 if (bsg_job->request->msgcode
1288                                                     == FC_BSG_HST_CT)
1289                                                         kfree(sp->fcport);
1290                                                 bsg_job->req->errors = 0;
1291                                                 bsg_job->reply->result = res;
1292                                                 bsg_job->job_done(bsg_job);
1293                                                 kfree(sp->ctx);
1294                                                 mempool_free(sp,
1295                                                         ha->srb_mempool);
1296                                         } else {
1297                                                 ctx->u.iocb_cmd->free(sp);
1298                                         }
1299                                 }
1300                         }
1301                 }
1302         }
1303         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1304 }
1305
1306 static int
1307 qla2xxx_slave_alloc(struct scsi_device *sdev)
1308 {
1309         struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1310
1311         if (!rport || fc_remote_port_chkready(rport))
1312                 return -ENXIO;
1313
1314         sdev->hostdata = *(fc_port_t **)rport->dd_data;
1315
1316         return 0;
1317 }
1318
1319 static int
1320 qla2xxx_slave_configure(struct scsi_device *sdev)
1321 {
1322         scsi_qla_host_t *vha = shost_priv(sdev->host);
1323         struct req_que *req = vha->req;
1324
1325         if (sdev->tagged_supported)
1326                 scsi_activate_tcq(sdev, req->max_q_depth);
1327         else
1328                 scsi_deactivate_tcq(sdev, req->max_q_depth);
1329         return 0;
1330 }
1331
1332 static void
1333 qla2xxx_slave_destroy(struct scsi_device *sdev)
1334 {
1335         sdev->hostdata = NULL;
1336 }
1337
1338 static void qla2x00_handle_queue_full(struct scsi_device *sdev, int qdepth)
1339 {
1340         fc_port_t *fcport = (struct fc_port *) sdev->hostdata;
1341
1342         if (!scsi_track_queue_full(sdev, qdepth))
1343                 return;
1344
1345         ql_dbg(ql_dbg_io, fcport->vha, 0x3029,
1346             "Queue depth adjusted-down to %d for nexus=%ld:%d:%d.\n",
1347             sdev->queue_depth, fcport->vha->host_no, sdev->id, sdev->lun);
1348 }
1349
1350 static void qla2x00_adjust_sdev_qdepth_up(struct scsi_device *sdev, int qdepth)
1351 {
1352         fc_port_t *fcport = sdev->hostdata;
1353         struct scsi_qla_host *vha = fcport->vha;
1354         struct req_que *req = NULL;
1355
1356         req = vha->req;
1357         if (!req)
1358                 return;
1359
1360         if (req->max_q_depth <= sdev->queue_depth || req->max_q_depth < qdepth)
1361                 return;
1362
1363         if (sdev->ordered_tags)
1364                 scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, qdepth);
1365         else
1366                 scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, qdepth);
1367
1368         ql_dbg(ql_dbg_io, vha, 0x302a,
1369             "Queue depth adjusted-up to %d for nexus=%ld:%d:%d.\n",
1370             sdev->queue_depth, fcport->vha->host_no, sdev->id, sdev->lun);
1371 }
1372
1373 static int
1374 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
1375 {
1376         switch (reason) {
1377         case SCSI_QDEPTH_DEFAULT:
1378                 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1379                 break;
1380         case SCSI_QDEPTH_QFULL:
1381                 qla2x00_handle_queue_full(sdev, qdepth);
1382                 break;
1383         case SCSI_QDEPTH_RAMP_UP:
1384                 qla2x00_adjust_sdev_qdepth_up(sdev, qdepth);
1385                 break;
1386         default:
1387                 return -EOPNOTSUPP;
1388         }
1389
1390         return sdev->queue_depth;
1391 }
1392
1393 static int
1394 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1395 {
1396         if (sdev->tagged_supported) {
1397                 scsi_set_tag_type(sdev, tag_type);
1398                 if (tag_type)
1399                         scsi_activate_tcq(sdev, sdev->queue_depth);
1400                 else
1401                         scsi_deactivate_tcq(sdev, sdev->queue_depth);
1402         } else
1403                 tag_type = 0;
1404
1405         return tag_type;
1406 }
1407
1408 /**
1409  * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1410  * @ha: HA context
1411  *
1412  * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1413  * supported addressing method.
1414  */
1415 static void
1416 qla2x00_config_dma_addressing(struct qla_hw_data *ha)
1417 {
1418         /* Assume a 32bit DMA mask. */
1419         ha->flags.enable_64bit_addressing = 0;
1420
1421         if (!dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(64))) {
1422                 /* Any upper-dword bits set? */
1423                 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1424                     !pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) {
1425                         /* Ok, a 64bit DMA mask is applicable. */
1426                         ha->flags.enable_64bit_addressing = 1;
1427                         ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1428                         ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1429                         return;
1430                 }
1431         }
1432
1433         dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(32));
1434         pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(32));
1435 }
1436
1437 static void
1438 qla2x00_enable_intrs(struct qla_hw_data *ha)
1439 {
1440         unsigned long flags = 0;
1441         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1442
1443         spin_lock_irqsave(&ha->hardware_lock, flags);
1444         ha->interrupts_on = 1;
1445         /* enable risc and host interrupts */
1446         WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1447         RD_REG_WORD(&reg->ictrl);
1448         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1449
1450 }
1451
1452 static void
1453 qla2x00_disable_intrs(struct qla_hw_data *ha)
1454 {
1455         unsigned long flags = 0;
1456         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1457
1458         spin_lock_irqsave(&ha->hardware_lock, flags);
1459         ha->interrupts_on = 0;
1460         /* disable risc and host interrupts */
1461         WRT_REG_WORD(&reg->ictrl, 0);
1462         RD_REG_WORD(&reg->ictrl);
1463         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1464 }
1465
1466 static void
1467 qla24xx_enable_intrs(struct qla_hw_data *ha)
1468 {
1469         unsigned long flags = 0;
1470         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1471
1472         spin_lock_irqsave(&ha->hardware_lock, flags);
1473         ha->interrupts_on = 1;
1474         WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1475         RD_REG_DWORD(&reg->ictrl);
1476         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1477 }
1478
1479 static void
1480 qla24xx_disable_intrs(struct qla_hw_data *ha)
1481 {
1482         unsigned long flags = 0;
1483         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1484
1485         if (IS_NOPOLLING_TYPE(ha))
1486                 return;
1487         spin_lock_irqsave(&ha->hardware_lock, flags);
1488         ha->interrupts_on = 0;
1489         WRT_REG_DWORD(&reg->ictrl, 0);
1490         RD_REG_DWORD(&reg->ictrl);
1491         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1492 }
1493
1494 static int
1495 qla2x00_iospace_config(struct qla_hw_data *ha)
1496 {
1497         resource_size_t pio;
1498         uint16_t msix;
1499         int cpus;
1500
1501         if (IS_QLA82XX(ha))
1502                 return qla82xx_iospace_config(ha);
1503
1504         if (pci_request_selected_regions(ha->pdev, ha->bars,
1505             QLA2XXX_DRIVER_NAME)) {
1506                 ql_log_pci(ql_log_fatal, ha->pdev, 0x0011,
1507                     "Failed to reserve PIO/MMIO regions (%s), aborting.\n",
1508                     pci_name(ha->pdev));
1509                 goto iospace_error_exit;
1510         }
1511         if (!(ha->bars & 1))
1512                 goto skip_pio;
1513
1514         /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1515         pio = pci_resource_start(ha->pdev, 0);
1516         if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
1517                 if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
1518                         ql_log_pci(ql_log_warn, ha->pdev, 0x0012,
1519                             "Invalid pci I/O region size (%s).\n",
1520                             pci_name(ha->pdev));
1521                         pio = 0;
1522                 }
1523         } else {
1524                 ql_log_pci(ql_log_warn, ha->pdev, 0x0013,
1525                     "Region #0 no a PIO resource (%s).\n",
1526                     pci_name(ha->pdev));
1527                 pio = 0;
1528         }
1529         ha->pio_address = pio;
1530         ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0014,
1531             "PIO address=%llu.\n",
1532             (unsigned long long)ha->pio_address);
1533
1534 skip_pio:
1535         /* Use MMIO operations for all accesses. */
1536         if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
1537                 ql_log_pci(ql_log_fatal, ha->pdev, 0x0015,
1538                     "Region #1 not an MMIO resource (%s), aborting.\n",
1539                     pci_name(ha->pdev));
1540                 goto iospace_error_exit;
1541         }
1542         if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
1543                 ql_log_pci(ql_log_fatal, ha->pdev, 0x0016,
1544                     "Invalid PCI mem region size (%s), aborting.\n",
1545                     pci_name(ha->pdev));
1546                 goto iospace_error_exit;
1547         }
1548
1549         ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
1550         if (!ha->iobase) {
1551                 ql_log_pci(ql_log_fatal, ha->pdev, 0x0017,
1552                     "Cannot remap MMIO (%s), aborting.\n",
1553                     pci_name(ha->pdev));
1554                 goto iospace_error_exit;
1555         }
1556
1557         /* Determine queue resources */
1558         ha->max_req_queues = ha->max_rsp_queues = 1;
1559         if ((ql2xmaxqueues <= 1 && !ql2xmultique_tag) ||
1560                 (ql2xmaxqueues > 1 && ql2xmultique_tag) ||
1561                 (!IS_QLA25XX(ha) && !IS_QLA81XX(ha)))
1562                 goto mqiobase_exit;
1563
1564         ha->mqiobase = ioremap(pci_resource_start(ha->pdev, 3),
1565                         pci_resource_len(ha->pdev, 3));
1566         if (ha->mqiobase) {
1567                 ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0018,
1568                     "MQIO Base=%p.\n", ha->mqiobase);
1569                 /* Read MSIX vector size of the board */
1570                 pci_read_config_word(ha->pdev, QLA_PCI_MSIX_CONTROL, &msix);
1571                 ha->msix_count = msix;
1572                 /* Max queues are bounded by available msix vectors */
1573                 /* queue 0 uses two msix vectors */
1574                 if (ql2xmultique_tag) {
1575                         cpus = num_online_cpus();
1576                         ha->max_rsp_queues = (ha->msix_count - 1 > cpus) ?
1577                                 (cpus + 1) : (ha->msix_count - 1);
1578                         ha->max_req_queues = 2;
1579                 } else if (ql2xmaxqueues > 1) {
1580                         ha->max_req_queues = ql2xmaxqueues > QLA_MQ_SIZE ?
1581                             QLA_MQ_SIZE : ql2xmaxqueues;
1582                         ql_dbg_pci(ql_dbg_multiq, ha->pdev, 0xc008,
1583                             "QoS mode set, max no of request queues:%d.\n",
1584                             ha->max_req_queues);
1585                         ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0019,
1586                             "QoS mode set, max no of request queues:%d.\n",
1587                             ha->max_req_queues);
1588                 }
1589                 ql_log_pci(ql_log_info, ha->pdev, 0x001a,
1590                     "MSI-X vector count: %d.\n", msix);
1591         } else
1592                 ql_log_pci(ql_log_info, ha->pdev, 0x001b,
1593                     "BAR 3 not enabled.\n");
1594
1595 mqiobase_exit:
1596         ha->msix_count = ha->max_rsp_queues + 1;
1597         ql_dbg_pci(ql_dbg_init, ha->pdev, 0x001c,
1598             "MSIX Count:%d.\n", ha->msix_count);
1599         return (0);
1600
1601 iospace_error_exit:
1602         return (-ENOMEM);
1603 }
1604
1605
1606 static struct isp_operations qla2100_isp_ops = {
1607         .pci_config             = qla2100_pci_config,
1608         .reset_chip             = qla2x00_reset_chip,
1609         .chip_diag              = qla2x00_chip_diag,
1610         .config_rings           = qla2x00_config_rings,
1611         .reset_adapter          = qla2x00_reset_adapter,
1612         .nvram_config           = qla2x00_nvram_config,
1613         .update_fw_options      = qla2x00_update_fw_options,
1614         .load_risc              = qla2x00_load_risc,
1615         .pci_info_str           = qla2x00_pci_info_str,
1616         .fw_version_str         = qla2x00_fw_version_str,
1617         .intr_handler           = qla2100_intr_handler,
1618         .enable_intrs           = qla2x00_enable_intrs,
1619         .disable_intrs          = qla2x00_disable_intrs,
1620         .abort_command          = qla2x00_abort_command,
1621         .target_reset           = qla2x00_abort_target,
1622         .lun_reset              = qla2x00_lun_reset,
1623         .fabric_login           = qla2x00_login_fabric,
1624         .fabric_logout          = qla2x00_fabric_logout,
1625         .calc_req_entries       = qla2x00_calc_iocbs_32,
1626         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1627         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1628         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1629         .read_nvram             = qla2x00_read_nvram_data,
1630         .write_nvram            = qla2x00_write_nvram_data,
1631         .fw_dump                = qla2100_fw_dump,
1632         .beacon_on              = NULL,
1633         .beacon_off             = NULL,
1634         .beacon_blink           = NULL,
1635         .read_optrom            = qla2x00_read_optrom_data,
1636         .write_optrom           = qla2x00_write_optrom_data,
1637         .get_flash_version      = qla2x00_get_flash_version,
1638         .start_scsi             = qla2x00_start_scsi,
1639         .abort_isp              = qla2x00_abort_isp,
1640         .iospace_config         = qla2x00_iospace_config,
1641 };
1642
1643 static struct isp_operations qla2300_isp_ops = {
1644         .pci_config             = qla2300_pci_config,
1645         .reset_chip             = qla2x00_reset_chip,
1646         .chip_diag              = qla2x00_chip_diag,
1647         .config_rings           = qla2x00_config_rings,
1648         .reset_adapter          = qla2x00_reset_adapter,
1649         .nvram_config           = qla2x00_nvram_config,
1650         .update_fw_options      = qla2x00_update_fw_options,
1651         .load_risc              = qla2x00_load_risc,
1652         .pci_info_str           = qla2x00_pci_info_str,
1653         .fw_version_str         = qla2x00_fw_version_str,
1654         .intr_handler           = qla2300_intr_handler,
1655         .enable_intrs           = qla2x00_enable_intrs,
1656         .disable_intrs          = qla2x00_disable_intrs,
1657         .abort_command          = qla2x00_abort_command,
1658         .target_reset           = qla2x00_abort_target,
1659         .lun_reset              = qla2x00_lun_reset,
1660         .fabric_login           = qla2x00_login_fabric,
1661         .fabric_logout          = qla2x00_fabric_logout,
1662         .calc_req_entries       = qla2x00_calc_iocbs_32,
1663         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1664         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1665         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1666         .read_nvram             = qla2x00_read_nvram_data,
1667         .write_nvram            = qla2x00_write_nvram_data,
1668         .fw_dump                = qla2300_fw_dump,
1669         .beacon_on              = qla2x00_beacon_on,
1670         .beacon_off             = qla2x00_beacon_off,
1671         .beacon_blink           = qla2x00_beacon_blink,
1672         .read_optrom            = qla2x00_read_optrom_data,
1673         .write_optrom           = qla2x00_write_optrom_data,
1674         .get_flash_version      = qla2x00_get_flash_version,
1675         .start_scsi             = qla2x00_start_scsi,
1676         .abort_isp              = qla2x00_abort_isp,
1677         .iospace_config         = qla2x00_iospace_config,
1678 };
1679
1680 static struct isp_operations qla24xx_isp_ops = {
1681         .pci_config             = qla24xx_pci_config,
1682         .reset_chip             = qla24xx_reset_chip,
1683         .chip_diag              = qla24xx_chip_diag,
1684         .config_rings           = qla24xx_config_rings,
1685         .reset_adapter          = qla24xx_reset_adapter,
1686         .nvram_config           = qla24xx_nvram_config,
1687         .update_fw_options      = qla24xx_update_fw_options,
1688         .load_risc              = qla24xx_load_risc,
1689         .pci_info_str           = qla24xx_pci_info_str,
1690         .fw_version_str         = qla24xx_fw_version_str,
1691         .intr_handler           = qla24xx_intr_handler,
1692         .enable_intrs           = qla24xx_enable_intrs,
1693         .disable_intrs          = qla24xx_disable_intrs,
1694         .abort_command          = qla24xx_abort_command,
1695         .target_reset           = qla24xx_abort_target,
1696         .lun_reset              = qla24xx_lun_reset,
1697         .fabric_login           = qla24xx_login_fabric,
1698         .fabric_logout          = qla24xx_fabric_logout,
1699         .calc_req_entries       = NULL,
1700         .build_iocbs            = NULL,
1701         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1702         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1703         .read_nvram             = qla24xx_read_nvram_data,
1704         .write_nvram            = qla24xx_write_nvram_data,
1705         .fw_dump                = qla24xx_fw_dump,
1706         .beacon_on              = qla24xx_beacon_on,
1707         .beacon_off             = qla24xx_beacon_off,
1708         .beacon_blink           = qla24xx_beacon_blink,
1709         .read_optrom            = qla24xx_read_optrom_data,
1710         .write_optrom           = qla24xx_write_optrom_data,
1711         .get_flash_version      = qla24xx_get_flash_version,
1712         .start_scsi             = qla24xx_start_scsi,
1713         .abort_isp              = qla2x00_abort_isp,
1714         .iospace_config         = qla2x00_iospace_config,
1715 };
1716
1717 static struct isp_operations qla25xx_isp_ops = {
1718         .pci_config             = qla25xx_pci_config,
1719         .reset_chip             = qla24xx_reset_chip,
1720         .chip_diag              = qla24xx_chip_diag,
1721         .config_rings           = qla24xx_config_rings,
1722         .reset_adapter          = qla24xx_reset_adapter,
1723         .nvram_config           = qla24xx_nvram_config,
1724         .update_fw_options      = qla24xx_update_fw_options,
1725         .load_risc              = qla24xx_load_risc,
1726         .pci_info_str           = qla24xx_pci_info_str,
1727         .fw_version_str         = qla24xx_fw_version_str,
1728         .intr_handler           = qla24xx_intr_handler,
1729         .enable_intrs           = qla24xx_enable_intrs,
1730         .disable_intrs          = qla24xx_disable_intrs,
1731         .abort_command          = qla24xx_abort_command,
1732         .target_reset           = qla24xx_abort_target,
1733         .lun_reset              = qla24xx_lun_reset,
1734         .fabric_login           = qla24xx_login_fabric,
1735         .fabric_logout          = qla24xx_fabric_logout,
1736         .calc_req_entries       = NULL,
1737         .build_iocbs            = NULL,
1738         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1739         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1740         .read_nvram             = qla25xx_read_nvram_data,
1741         .write_nvram            = qla25xx_write_nvram_data,
1742         .fw_dump                = qla25xx_fw_dump,
1743         .beacon_on              = qla24xx_beacon_on,
1744         .beacon_off             = qla24xx_beacon_off,
1745         .beacon_blink           = qla24xx_beacon_blink,
1746         .read_optrom            = qla25xx_read_optrom_data,
1747         .write_optrom           = qla24xx_write_optrom_data,
1748         .get_flash_version      = qla24xx_get_flash_version,
1749         .start_scsi             = qla24xx_dif_start_scsi,
1750         .abort_isp              = qla2x00_abort_isp,
1751         .iospace_config         = qla2x00_iospace_config,
1752 };
1753
1754 static struct isp_operations qla81xx_isp_ops = {
1755         .pci_config             = qla25xx_pci_config,
1756         .reset_chip             = qla24xx_reset_chip,
1757         .chip_diag              = qla24xx_chip_diag,
1758         .config_rings           = qla24xx_config_rings,
1759         .reset_adapter          = qla24xx_reset_adapter,
1760         .nvram_config           = qla81xx_nvram_config,
1761         .update_fw_options      = qla81xx_update_fw_options,
1762         .load_risc              = qla81xx_load_risc,
1763         .pci_info_str           = qla24xx_pci_info_str,
1764         .fw_version_str         = qla24xx_fw_version_str,
1765         .intr_handler           = qla24xx_intr_handler,
1766         .enable_intrs           = qla24xx_enable_intrs,
1767         .disable_intrs          = qla24xx_disable_intrs,
1768         .abort_command          = qla24xx_abort_command,
1769         .target_reset           = qla24xx_abort_target,
1770         .lun_reset              = qla24xx_lun_reset,
1771         .fabric_login           = qla24xx_login_fabric,
1772         .fabric_logout          = qla24xx_fabric_logout,
1773         .calc_req_entries       = NULL,
1774         .build_iocbs            = NULL,
1775         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1776         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1777         .read_nvram             = NULL,
1778         .write_nvram            = NULL,
1779         .fw_dump                = qla81xx_fw_dump,
1780         .beacon_on              = qla24xx_beacon_on,
1781         .beacon_off             = qla24xx_beacon_off,
1782         .beacon_blink           = qla24xx_beacon_blink,
1783         .read_optrom            = qla25xx_read_optrom_data,
1784         .write_optrom           = qla24xx_write_optrom_data,
1785         .get_flash_version      = qla24xx_get_flash_version,
1786         .start_scsi             = qla24xx_dif_start_scsi,
1787         .abort_isp              = qla2x00_abort_isp,
1788         .iospace_config         = qla2x00_iospace_config,
1789 };
1790
1791 static struct isp_operations qla82xx_isp_ops = {
1792         .pci_config             = qla82xx_pci_config,
1793         .reset_chip             = qla82xx_reset_chip,
1794         .chip_diag              = qla24xx_chip_diag,
1795         .config_rings           = qla82xx_config_rings,
1796         .reset_adapter          = qla24xx_reset_adapter,
1797         .nvram_config           = qla81xx_nvram_config,
1798         .update_fw_options      = qla24xx_update_fw_options,
1799         .load_risc              = qla82xx_load_risc,
1800         .pci_info_str           = qla82xx_pci_info_str,
1801         .fw_version_str         = qla24xx_fw_version_str,
1802         .intr_handler           = qla82xx_intr_handler,
1803         .enable_intrs           = qla82xx_enable_intrs,
1804         .disable_intrs          = qla82xx_disable_intrs,
1805         .abort_command          = qla24xx_abort_command,
1806         .target_reset           = qla24xx_abort_target,
1807         .lun_reset              = qla24xx_lun_reset,
1808         .fabric_login           = qla24xx_login_fabric,
1809         .fabric_logout          = qla24xx_fabric_logout,
1810         .calc_req_entries       = NULL,
1811         .build_iocbs            = NULL,
1812         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1813         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1814         .read_nvram             = qla24xx_read_nvram_data,
1815         .write_nvram            = qla24xx_write_nvram_data,
1816         .fw_dump                = qla24xx_fw_dump,
1817         .beacon_on              = qla82xx_beacon_on,
1818         .beacon_off             = qla82xx_beacon_off,
1819         .beacon_blink           = NULL,
1820         .read_optrom            = qla82xx_read_optrom_data,
1821         .write_optrom           = qla82xx_write_optrom_data,
1822         .get_flash_version      = qla24xx_get_flash_version,
1823         .start_scsi             = qla82xx_start_scsi,
1824         .abort_isp              = qla82xx_abort_isp,
1825         .iospace_config         = qla82xx_iospace_config,
1826 };
1827
1828 static inline void
1829 qla2x00_set_isp_flags(struct qla_hw_data *ha)
1830 {
1831         ha->device_type = DT_EXTENDED_IDS;
1832         switch (ha->pdev->device) {
1833         case PCI_DEVICE_ID_QLOGIC_ISP2100:
1834                 ha->device_type |= DT_ISP2100;
1835                 ha->device_type &= ~DT_EXTENDED_IDS;
1836                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1837                 break;
1838         case PCI_DEVICE_ID_QLOGIC_ISP2200:
1839                 ha->device_type |= DT_ISP2200;
1840                 ha->device_type &= ~DT_EXTENDED_IDS;
1841                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1842                 break;
1843         case PCI_DEVICE_ID_QLOGIC_ISP2300:
1844                 ha->device_type |= DT_ISP2300;
1845                 ha->device_type |= DT_ZIO_SUPPORTED;
1846                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1847                 break;
1848         case PCI_DEVICE_ID_QLOGIC_ISP2312:
1849                 ha->device_type |= DT_ISP2312;
1850                 ha->device_type |= DT_ZIO_SUPPORTED;
1851                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1852                 break;
1853         case PCI_DEVICE_ID_QLOGIC_ISP2322:
1854                 ha->device_type |= DT_ISP2322;
1855                 ha->device_type |= DT_ZIO_SUPPORTED;
1856                 if (ha->pdev->subsystem_vendor == 0x1028 &&
1857                     ha->pdev->subsystem_device == 0x0170)
1858                         ha->device_type |= DT_OEM_001;
1859                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1860                 break;
1861         case PCI_DEVICE_ID_QLOGIC_ISP6312:
1862                 ha->device_type |= DT_ISP6312;
1863                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1864                 break;
1865         case PCI_DEVICE_ID_QLOGIC_ISP6322:
1866                 ha->device_type |= DT_ISP6322;
1867                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1868                 break;
1869         case PCI_DEVICE_ID_QLOGIC_ISP2422:
1870                 ha->device_type |= DT_ISP2422;
1871                 ha->device_type |= DT_ZIO_SUPPORTED;
1872                 ha->device_type |= DT_FWI2;
1873                 ha->device_type |= DT_IIDMA;
1874                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1875                 break;
1876         case PCI_DEVICE_ID_QLOGIC_ISP2432:
1877                 ha->device_type |= DT_ISP2432;
1878                 ha->device_type |= DT_ZIO_SUPPORTED;
1879                 ha->device_type |= DT_FWI2;
1880                 ha->device_type |= DT_IIDMA;
1881                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1882                 break;
1883         case PCI_DEVICE_ID_QLOGIC_ISP8432:
1884                 ha->device_type |= DT_ISP8432;
1885                 ha->device_type |= DT_ZIO_SUPPORTED;
1886                 ha->device_type |= DT_FWI2;
1887                 ha->device_type |= DT_IIDMA;
1888                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1889                 break;
1890         case PCI_DEVICE_ID_QLOGIC_ISP5422:
1891                 ha->device_type |= DT_ISP5422;
1892                 ha->device_type |= DT_FWI2;
1893                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1894                 break;
1895         case PCI_DEVICE_ID_QLOGIC_ISP5432:
1896                 ha->device_type |= DT_ISP5432;
1897                 ha->device_type |= DT_FWI2;
1898                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1899                 break;
1900         case PCI_DEVICE_ID_QLOGIC_ISP2532:
1901                 ha->device_type |= DT_ISP2532;
1902                 ha->device_type |= DT_ZIO_SUPPORTED;
1903                 ha->device_type |= DT_FWI2;
1904                 ha->device_type |= DT_IIDMA;
1905                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1906                 break;
1907         case PCI_DEVICE_ID_QLOGIC_ISP8001:
1908                 ha->device_type |= DT_ISP8001;
1909                 ha->device_type |= DT_ZIO_SUPPORTED;
1910                 ha->device_type |= DT_FWI2;
1911                 ha->device_type |= DT_IIDMA;
1912                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1913                 break;
1914         case PCI_DEVICE_ID_QLOGIC_ISP8021:
1915                 ha->device_type |= DT_ISP8021;
1916                 ha->device_type |= DT_ZIO_SUPPORTED;
1917                 ha->device_type |= DT_FWI2;
1918                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1919                 /* Initialize 82XX ISP flags */
1920                 qla82xx_init_flags(ha);
1921                 break;
1922         }
1923
1924         if (IS_QLA82XX(ha))
1925                 ha->port_no = !(ha->portnum & 1);
1926         else
1927                 /* Get adapter physical port no from interrupt pin register. */
1928                 pci_read_config_byte(ha->pdev, PCI_INTERRUPT_PIN, &ha->port_no);
1929
1930         if (ha->port_no & 1)
1931                 ha->flags.port0 = 1;
1932         else
1933                 ha->flags.port0 = 0;
1934         ql_dbg_pci(ql_dbg_init, ha->pdev, 0x000b,
1935             "device_type=0x%x port=%d fw_srisc_address=0x%x.\n",
1936             ha->device_type, ha->flags.port0, ha->fw_srisc_address);
1937 }
1938
1939 static void
1940 qla2xxx_scan_start(struct Scsi_Host *shost)
1941 {
1942         scsi_qla_host_t *vha = shost_priv(shost);
1943
1944         if (vha->hw->flags.running_gold_fw)
1945                 return;
1946
1947         set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1948         set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1949         set_bit(RSCN_UPDATE, &vha->dpc_flags);
1950         set_bit(NPIV_CONFIG_NEEDED, &vha->dpc_flags);
1951 }
1952
1953 static int
1954 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
1955 {
1956         scsi_qla_host_t *vha = shost_priv(shost);
1957
1958         if (!vha->host)
1959                 return 1;
1960         if (time > vha->hw->loop_reset_delay * HZ)
1961                 return 1;
1962
1963         return atomic_read(&vha->loop_state) == LOOP_READY;
1964 }
1965
1966 /*
1967  * PCI driver interface
1968  */
1969 static int __devinit
1970 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1971 {
1972         int     ret = -ENODEV;
1973         struct Scsi_Host *host;
1974         scsi_qla_host_t *base_vha = NULL;
1975         struct qla_hw_data *ha;
1976         char pci_info[30];
1977         char fw_str[30];
1978         struct scsi_host_template *sht;
1979         int bars, max_id, mem_only = 0;
1980         uint16_t req_length = 0, rsp_length = 0;
1981         struct req_que *req = NULL;
1982         struct rsp_que *rsp = NULL;
1983
1984         bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
1985         sht = &qla2xxx_driver_template;
1986         if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1987             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
1988             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8432 ||
1989             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
1990             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
1991             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532 ||
1992             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8001 ||
1993             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8021) {
1994                 bars = pci_select_bars(pdev, IORESOURCE_MEM);
1995                 mem_only = 1;
1996                 ql_dbg_pci(ql_dbg_init, pdev, 0x0007,
1997                     "Mem only adapter.\n");
1998         }
1999         ql_dbg_pci(ql_dbg_init, pdev, 0x0008,
2000             "Bars=%d.\n", bars);
2001
2002         if (mem_only) {
2003                 if (pci_enable_device_mem(pdev))
2004                         goto probe_out;
2005         } else {
2006                 if (pci_enable_device(pdev))
2007                         goto probe_out;
2008         }
2009
2010         /* This may fail but that's ok */
2011         pci_enable_pcie_error_reporting(pdev);
2012
2013         ha = kzalloc(sizeof(struct qla_hw_data), GFP_KERNEL);
2014         if (!ha) {
2015                 ql_log_pci(ql_log_fatal, pdev, 0x0009,
2016                     "Unable to allocate memory for ha.\n");
2017                 goto probe_out;
2018         }
2019         ql_dbg_pci(ql_dbg_init, pdev, 0x000a,
2020             "Memory allocated for ha=%p.\n", ha);
2021         ha->pdev = pdev;
2022
2023         /* Clear our data area */
2024         ha->bars = bars;
2025         ha->mem_only = mem_only;
2026         spin_lock_init(&ha->hardware_lock);
2027         spin_lock_init(&ha->vport_slock);
2028
2029         /* Set ISP-type information. */
2030         qla2x00_set_isp_flags(ha);
2031
2032         /* Set EEH reset type to fundamental if required by hba */
2033         if ( IS_QLA24XX(ha) || IS_QLA25XX(ha) || IS_QLA81XX(ha)) {
2034                 pdev->needs_freset = 1;
2035         }
2036
2037         ha->prev_topology = 0;
2038         ha->init_cb_size = sizeof(init_cb_t);
2039         ha->link_data_rate = PORT_SPEED_UNKNOWN;
2040         ha->optrom_size = OPTROM_SIZE_2300;
2041
2042         /* Assign ISP specific operations. */
2043         max_id = MAX_TARGETS_2200;
2044         if (IS_QLA2100(ha)) {
2045                 max_id = MAX_TARGETS_2100;
2046                 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
2047                 req_length = REQUEST_ENTRY_CNT_2100;
2048                 rsp_length = RESPONSE_ENTRY_CNT_2100;
2049                 ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
2050                 ha->gid_list_info_size = 4;
2051                 ha->flash_conf_off = ~0;
2052                 ha->flash_data_off = ~0;
2053                 ha->nvram_conf_off = ~0;
2054                 ha->nvram_data_off = ~0;
2055                 ha->isp_ops = &qla2100_isp_ops;
2056         } else if (IS_QLA2200(ha)) {
2057                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2058                 req_length = REQUEST_ENTRY_CNT_2200;
2059                 rsp_length = RESPONSE_ENTRY_CNT_2100;
2060                 ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
2061                 ha->gid_list_info_size = 4;
2062                 ha->flash_conf_off = ~0;
2063                 ha->flash_data_off = ~0;
2064                 ha->nvram_conf_off = ~0;
2065                 ha->nvram_data_off = ~0;
2066                 ha->isp_ops = &qla2100_isp_ops;
2067         } else if (IS_QLA23XX(ha)) {
2068                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2069                 req_length = REQUEST_ENTRY_CNT_2200;
2070                 rsp_length = RESPONSE_ENTRY_CNT_2300;
2071                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2072                 ha->gid_list_info_size = 6;
2073                 if (IS_QLA2322(ha) || IS_QLA6322(ha))
2074                         ha->optrom_size = OPTROM_SIZE_2322;
2075                 ha->flash_conf_off = ~0;
2076                 ha->flash_data_off = ~0;
2077                 ha->nvram_conf_off = ~0;
2078                 ha->nvram_data_off = ~0;
2079                 ha->isp_ops = &qla2300_isp_ops;
2080         } else if (IS_QLA24XX_TYPE(ha)) {
2081                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2082                 req_length = REQUEST_ENTRY_CNT_24XX;
2083                 rsp_length = RESPONSE_ENTRY_CNT_2300;
2084                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2085                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
2086                 ha->gid_list_info_size = 8;
2087                 ha->optrom_size = OPTROM_SIZE_24XX;
2088                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA24XX;
2089                 ha->isp_ops = &qla24xx_isp_ops;
2090                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2091                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2092                 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2093                 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2094         } else if (IS_QLA25XX(ha)) {
2095                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2096                 req_length = REQUEST_ENTRY_CNT_24XX;
2097                 rsp_length = RESPONSE_ENTRY_CNT_2300;
2098                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2099                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
2100                 ha->gid_list_info_size = 8;
2101                 ha->optrom_size = OPTROM_SIZE_25XX;
2102                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2103                 ha->isp_ops = &qla25xx_isp_ops;
2104                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2105                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2106                 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2107                 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2108         } else if (IS_QLA81XX(ha)) {
2109                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2110                 req_length = REQUEST_ENTRY_CNT_24XX;
2111                 rsp_length = RESPONSE_ENTRY_CNT_2300;
2112                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2113                 ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
2114                 ha->gid_list_info_size = 8;
2115                 ha->optrom_size = OPTROM_SIZE_81XX;
2116                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2117                 ha->isp_ops = &qla81xx_isp_ops;
2118                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_81XX;
2119                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA_81XX;
2120                 ha->nvram_conf_off = ~0;
2121                 ha->nvram_data_off = ~0;
2122         } else if (IS_QLA82XX(ha)) {
2123                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2124                 req_length = REQUEST_ENTRY_CNT_82XX;
2125                 rsp_length = RESPONSE_ENTRY_CNT_82XX;
2126                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2127                 ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
2128                 ha->gid_list_info_size = 8;
2129                 ha->optrom_size = OPTROM_SIZE_82XX;
2130                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2131                 ha->isp_ops = &qla82xx_isp_ops;
2132                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2133                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2134                 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2135                 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2136         }
2137         ql_dbg_pci(ql_dbg_init, pdev, 0x001e,
2138             "mbx_count=%d, req_length=%d, "
2139             "rsp_length=%d, max_loop_id=%d, init_cb_size=%d, "
2140             "gid_list_info_size=%d, optrom_size=%d, nvram_npiv_size=%d, .\n",
2141             ha->mbx_count, req_length, rsp_length, ha->max_loop_id,
2142             ha->init_cb_size, ha->gid_list_info_size, ha->optrom_size,
2143             ha->nvram_npiv_size);
2144         ql_dbg_pci(ql_dbg_init, pdev, 0x001f,
2145             "isp_ops=%p, flash_conf_off=%d, "
2146             "flash_data_off=%d, nvram_conf_off=%d, nvram_data_off=%d.\n",
2147             ha->isp_ops, ha->flash_conf_off, ha->flash_data_off,
2148             ha->nvram_conf_off, ha->nvram_data_off);
2149
2150         /* Configure PCI I/O space */
2151         ret = ha->isp_ops->iospace_config(ha);
2152         if (ret)
2153                 goto probe_hw_failed;
2154
2155         ql_log_pci(ql_log_info, pdev, 0x001d,
2156             "Found an ISP%04X irq %d iobase 0x%p.\n",
2157             pdev->device, pdev->irq, ha->iobase);
2158         mutex_init(&ha->vport_lock);
2159         init_completion(&ha->mbx_cmd_comp);
2160         complete(&ha->mbx_cmd_comp);
2161         init_completion(&ha->mbx_intr_comp);
2162         init_completion(&ha->dcbx_comp);
2163
2164         set_bit(0, (unsigned long *) ha->vp_idx_map);
2165
2166         qla2x00_config_dma_addressing(ha);
2167         ql_dbg_pci(ql_dbg_init, pdev, 0x0020,
2168             "64 Bit addressing is %s.\n",
2169             ha->flags.enable_64bit_addressing ? "enable" :
2170             "disable");
2171         ret = qla2x00_mem_alloc(ha, req_length, rsp_length, &req, &rsp);
2172         if (!ret) {
2173                 ql_log_pci(ql_log_fatal, pdev, 0x0031,
2174                     "Failed to allocate memory for adapter, aborting.\n");
2175
2176                 goto probe_hw_failed;
2177         }
2178
2179         req->max_q_depth = MAX_Q_DEPTH;
2180         if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
2181                 req->max_q_depth = ql2xmaxqdepth;
2182
2183
2184         base_vha = qla2x00_create_host(sht, ha);
2185         if (!base_vha) {
2186                 ret = -ENOMEM;
2187                 qla2x00_mem_free(ha);
2188                 qla2x00_free_req_que(ha, req);
2189                 qla2x00_free_rsp_que(ha, rsp);
2190                 goto probe_hw_failed;
2191         }
2192
2193         pci_set_drvdata(pdev, base_vha);
2194
2195         host = base_vha->host;
2196         base_vha->req = req;
2197         host->can_queue = req->length + 128;
2198         if (IS_QLA2XXX_MIDTYPE(ha))
2199                 base_vha->mgmt_svr_loop_id = 10 + base_vha->vp_idx;
2200         else
2201                 base_vha->mgmt_svr_loop_id = MANAGEMENT_SERVER +
2202                                                 base_vha->vp_idx;
2203
2204         /* Set the SG table size based on ISP type */
2205         if (!IS_FWI2_CAPABLE(ha)) {
2206                 if (IS_QLA2100(ha))
2207                         host->sg_tablesize = 32;
2208         } else {
2209                 if (!IS_QLA82XX(ha))
2210                         host->sg_tablesize = QLA_SG_ALL;
2211         }
2212         ql_dbg(ql_dbg_init, base_vha, 0x0032,
2213             "can_queue=%d, req=%p, "
2214             "mgmt_svr_loop_id=%d, sg_tablesize=%d.\n",
2215             host->can_queue, base_vha->req,
2216             base_vha->mgmt_svr_loop_id, host->sg_tablesize);
2217         host->max_id = max_id;
2218         host->this_id = 255;
2219         host->cmd_per_lun = 3;
2220         host->unique_id = host->host_no;
2221         if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif)
2222                 host->max_cmd_len = 32;
2223         else
2224                 host->max_cmd_len = MAX_CMDSZ;
2225         host->max_channel = MAX_BUSES - 1;
2226         host->max_lun = ql2xmaxlun;
2227         host->transportt = qla2xxx_transport_template;
2228         sht->vendor_id = (SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC);
2229
2230         ql_dbg(ql_dbg_init, base_vha, 0x0033,
2231             "max_id=%d this_id=%d "
2232             "cmd_per_len=%d unique_id=%d max_cmd_len=%d max_channel=%d "
2233             "max_lun=%d transportt=%p, vendor_id=%llu.\n", host->max_id,
2234             host->this_id, host->cmd_per_lun, host->unique_id,
2235             host->max_cmd_len, host->max_channel, host->max_lun,
2236             host->transportt, sht->vendor_id);
2237
2238         /* Set up the irqs */
2239         ret = qla2x00_request_irqs(ha, rsp);
2240         if (ret)
2241                 goto probe_init_failed;
2242
2243         pci_save_state(pdev);
2244
2245         /* Alloc arrays of request and response ring ptrs */
2246 que_init:
2247         if (!qla2x00_alloc_queues(ha)) {
2248                 ql_log(ql_log_fatal, base_vha, 0x003d,
2249                     "Failed to allocate memory for queue pointers.. aborting.\n");
2250                 goto probe_init_failed;
2251         }
2252
2253         ha->rsp_q_map[0] = rsp;
2254         ha->req_q_map[0] = req;
2255         rsp->req = req;
2256         req->rsp = rsp;
2257         set_bit(0, ha->req_qid_map);
2258         set_bit(0, ha->rsp_qid_map);
2259         /* FWI2-capable only. */
2260         req->req_q_in = &ha->iobase->isp24.req_q_in;
2261         req->req_q_out = &ha->iobase->isp24.req_q_out;
2262         rsp->rsp_q_in = &ha->iobase->isp24.rsp_q_in;
2263         rsp->rsp_q_out = &ha->iobase->isp24.rsp_q_out;
2264         if (ha->mqenable) {
2265                 req->req_q_in = &ha->mqiobase->isp25mq.req_q_in;
2266                 req->req_q_out = &ha->mqiobase->isp25mq.req_q_out;
2267                 rsp->rsp_q_in = &ha->mqiobase->isp25mq.rsp_q_in;
2268                 rsp->rsp_q_out =  &ha->mqiobase->isp25mq.rsp_q_out;
2269         }
2270
2271         if (IS_QLA82XX(ha)) {
2272                 req->req_q_out = &ha->iobase->isp82.req_q_out[0];
2273                 rsp->rsp_q_in = &ha->iobase->isp82.rsp_q_in[0];
2274                 rsp->rsp_q_out = &ha->iobase->isp82.rsp_q_out[0];
2275         }
2276
2277         ql_dbg(ql_dbg_multiq, base_vha, 0xc009,
2278             "rsp_q_map=%p req_q_map=%p rsp->req=%p req->rsp=%p.\n",
2279             ha->rsp_q_map, ha->req_q_map, rsp->req, req->rsp);
2280         ql_dbg(ql_dbg_multiq, base_vha, 0xc00a,
2281             "req->req_q_in=%p req->req_q_out=%p "
2282             "rsp->rsp_q_in=%p rsp->rsp_q_out=%p.\n",
2283             req->req_q_in, req->req_q_out,
2284             rsp->rsp_q_in, rsp->rsp_q_out);
2285         ql_dbg(ql_dbg_init, base_vha, 0x003e,
2286             "rsp_q_map=%p req_q_map=%p rsp->req=%p req->rsp=%p.\n",
2287             ha->rsp_q_map, ha->req_q_map, rsp->req, req->rsp);
2288         ql_dbg(ql_dbg_init, base_vha, 0x003f,
2289             "req->req_q_in=%p req->req_q_out=%p rsp->rsp_q_in=%p rsp->rsp_q_out=%p.\n",
2290             req->req_q_in, req->req_q_out, rsp->rsp_q_in, rsp->rsp_q_out);
2291
2292         if (qla2x00_initialize_adapter(base_vha)) {
2293                 ql_log(ql_log_fatal, base_vha, 0x00d6,
2294                     "Failed to initialize adapter - Adapter flags %x.\n",
2295                     base_vha->device_flags);
2296
2297                 if (IS_QLA82XX(ha)) {
2298                         qla82xx_idc_lock(ha);
2299                         qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
2300                                 QLA82XX_DEV_FAILED);
2301                         qla82xx_idc_unlock(ha);
2302                         ql_log(ql_log_fatal, base_vha, 0x00d7,
2303                             "HW State: FAILED.\n");
2304                 }
2305
2306                 ret = -ENODEV;
2307                 goto probe_failed;
2308         }
2309
2310         if (ha->mqenable) {
2311                 if (qla25xx_setup_mode(base_vha)) {
2312                         ql_log(ql_log_warn, base_vha, 0x00ec,
2313                             "Failed to create queues, falling back to single queue mode.\n");
2314                         goto que_init;
2315                 }
2316         }
2317
2318         if (ha->flags.running_gold_fw)
2319                 goto skip_dpc;
2320
2321         /*
2322          * Startup the kernel thread for this host adapter
2323          */
2324         ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
2325             "%s_dpc", base_vha->host_str);
2326         if (IS_ERR(ha->dpc_thread)) {
2327                 ql_log(ql_log_fatal, base_vha, 0x00ed,
2328                     "Failed to start DPC thread.\n");
2329                 ret = PTR_ERR(ha->dpc_thread);
2330                 goto probe_failed;
2331         }
2332         ql_dbg(ql_dbg_init, base_vha, 0x00ee,
2333             "DPC thread started successfully.\n");
2334
2335 skip_dpc:
2336         list_add_tail(&base_vha->list, &ha->vp_list);
2337         base_vha->host->irq = ha->pdev->irq;
2338
2339         /* Initialized the timer */
2340         qla2x00_start_timer(base_vha, qla2x00_timer, WATCH_INTERVAL);
2341         ql_dbg(ql_dbg_init, base_vha, 0x00ef,
2342             "Started qla2x00_timer with "
2343             "interval=%d.\n", WATCH_INTERVAL);
2344         ql_dbg(ql_dbg_init, base_vha, 0x00f0,
2345             "Detected hba at address=%p.\n",
2346             ha);
2347
2348         if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif) {
2349                 if (ha->fw_attributes & BIT_4) {
2350                         int prot = 0;
2351                         base_vha->flags.difdix_supported = 1;
2352                         ql_dbg(ql_dbg_init, base_vha, 0x00f1,
2353                             "Registering for DIF/DIX type 1 and 3 protection.\n");
2354                         if (ql2xenabledif == 1)
2355                                 prot = SHOST_DIX_TYPE0_PROTECTION;
2356                         scsi_host_set_prot(host,
2357                             prot | SHOST_DIF_TYPE1_PROTECTION
2358                             | SHOST_DIF_TYPE2_PROTECTION
2359                             | SHOST_DIF_TYPE3_PROTECTION
2360                             | SHOST_DIX_TYPE1_PROTECTION
2361                             | SHOST_DIX_TYPE2_PROTECTION
2362                             | SHOST_DIX_TYPE3_PROTECTION);
2363                         scsi_host_set_guard(host, SHOST_DIX_GUARD_CRC);
2364                 } else
2365                         base_vha->flags.difdix_supported = 0;
2366         }
2367
2368         ha->isp_ops->enable_intrs(ha);
2369
2370         ret = scsi_add_host(host, &pdev->dev);
2371         if (ret)
2372                 goto probe_failed;
2373
2374         base_vha->flags.init_done = 1;
2375         base_vha->flags.online = 1;
2376
2377         ql_dbg(ql_dbg_init, base_vha, 0x00f2,
2378             "Init done and hba is online.\n");
2379
2380         scsi_scan_host(host);
2381
2382         qla2x00_alloc_sysfs_attr(base_vha);
2383
2384         qla2x00_init_host_attr(base_vha);
2385
2386         qla2x00_dfs_setup(base_vha);
2387
2388         ql_log(ql_log_info, base_vha, 0x00fb,
2389             "QLogic %s - %s.\n",
2390             ha->model_number, ha->model_desc ? ha->model_desc : "");
2391         ql_log(ql_log_info, base_vha, 0x00fc,
2392             "ISP%04X: %s @ %s hdma%c host#=%ld fw=%s.\n",
2393             pdev->device, ha->isp_ops->pci_info_str(base_vha, pci_info),
2394             pci_name(pdev), ha->flags.enable_64bit_addressing ? '+' : '-',
2395             base_vha->host_no,
2396             ha->isp_ops->fw_version_str(base_vha, fw_str));
2397
2398         return 0;
2399
2400 probe_init_failed:
2401         qla2x00_free_req_que(ha, req);
2402         qla2x00_free_rsp_que(ha, rsp);
2403         ha->max_req_queues = ha->max_rsp_queues = 0;
2404
2405 probe_failed:
2406         if (base_vha->timer_active)
2407                 qla2x00_stop_timer(base_vha);
2408         base_vha->flags.online = 0;
2409         if (ha->dpc_thread) {
2410                 struct task_struct *t = ha->dpc_thread;
2411
2412                 ha->dpc_thread = NULL;
2413                 kthread_stop(t);
2414         }
2415
2416         qla2x00_free_device(base_vha);
2417
2418         scsi_host_put(base_vha->host);
2419
2420 probe_hw_failed:
2421         if (IS_QLA82XX(ha)) {
2422                 qla82xx_idc_lock(ha);
2423                 qla82xx_clear_drv_active(ha);
2424                 qla82xx_idc_unlock(ha);
2425                 iounmap((device_reg_t __iomem *)ha->nx_pcibase);
2426                 if (!ql2xdbwr)
2427                         iounmap((device_reg_t __iomem *)ha->nxdb_wr_ptr);
2428         } else {
2429                 if (ha->iobase)
2430                         iounmap(ha->iobase);
2431         }
2432         pci_release_selected_regions(ha->pdev, ha->bars);
2433         kfree(ha);
2434         ha = NULL;
2435
2436 probe_out:
2437         pci_disable_device(pdev);
2438         return ret;
2439 }
2440
2441 static void
2442 qla2x00_shutdown(struct pci_dev *pdev)
2443 {
2444         scsi_qla_host_t *vha;
2445         struct qla_hw_data  *ha;
2446
2447         vha = pci_get_drvdata(pdev);
2448         ha = vha->hw;
2449
2450         /* Turn-off FCE trace */
2451         if (ha->flags.fce_enabled) {
2452                 qla2x00_disable_fce_trace(vha, NULL, NULL);
2453                 ha->flags.fce_enabled = 0;
2454         }
2455
2456         /* Turn-off EFT trace */
2457         if (ha->eft)
2458                 qla2x00_disable_eft_trace(vha);
2459
2460         /* Stop currently executing firmware. */
2461         qla2x00_try_to_stop_firmware(vha);
2462
2463         /* Turn adapter off line */
2464         vha->flags.online = 0;
2465
2466         /* turn-off interrupts on the card */
2467         if (ha->interrupts_on) {
2468                 vha->flags.init_done = 0;
2469                 ha->isp_ops->disable_intrs(ha);
2470         }
2471
2472         qla2x00_free_irqs(vha);
2473
2474         qla2x00_free_fw_dump(ha);
2475 }
2476
2477 static void
2478 qla2x00_remove_one(struct pci_dev *pdev)
2479 {
2480         scsi_qla_host_t *base_vha, *vha;
2481         struct qla_hw_data  *ha;
2482         unsigned long flags;
2483
2484         base_vha = pci_get_drvdata(pdev);
2485         ha = base_vha->hw;
2486
2487         mutex_lock(&ha->vport_lock);
2488         while (ha->cur_vport_count) {
2489                 struct Scsi_Host *scsi_host;
2490
2491                 spin_lock_irqsave(&ha->vport_slock, flags);
2492
2493                 BUG_ON(base_vha->list.next == &ha->vp_list);
2494                 /* This assumes first entry in ha->vp_list is always base vha */
2495                 vha = list_first_entry(&base_vha->list, scsi_qla_host_t, list);
2496                 scsi_host = scsi_host_get(vha->host);
2497
2498                 spin_unlock_irqrestore(&ha->vport_slock, flags);
2499                 mutex_unlock(&ha->vport_lock);
2500
2501                 fc_vport_terminate(vha->fc_vport);
2502                 scsi_host_put(vha->host);
2503
2504                 mutex_lock(&ha->vport_lock);
2505         }
2506         mutex_unlock(&ha->vport_lock);
2507
2508         set_bit(UNLOADING, &base_vha->dpc_flags);
2509
2510         qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
2511
2512         qla2x00_dfs_remove(base_vha);
2513
2514         qla84xx_put_chip(base_vha);
2515
2516         /* Disable timer */
2517         if (base_vha->timer_active)
2518                 qla2x00_stop_timer(base_vha);
2519
2520         base_vha->flags.online = 0;
2521
2522         /* Flush the work queue and remove it */
2523         if (ha->wq) {
2524                 flush_workqueue(ha->wq);
2525                 destroy_workqueue(ha->wq);
2526                 ha->wq = NULL;
2527         }
2528
2529         /* Kill the kernel thread for this host */
2530         if (ha->dpc_thread) {
2531                 struct task_struct *t = ha->dpc_thread;
2532
2533                 /*
2534                  * qla2xxx_wake_dpc checks for ->dpc_thread
2535                  * so we need to zero it out.
2536                  */
2537                 ha->dpc_thread = NULL;
2538                 kthread_stop(t);
2539         }
2540
2541         qla2x00_free_sysfs_attr(base_vha);
2542
2543         fc_remove_host(base_vha->host);
2544
2545         scsi_remove_host(base_vha->host);
2546
2547         qla2x00_free_device(base_vha);
2548
2549         scsi_host_put(base_vha->host);
2550
2551         if (IS_QLA82XX(ha)) {
2552                 qla82xx_idc_lock(ha);
2553                 qla82xx_clear_drv_active(ha);
2554                 qla82xx_idc_unlock(ha);
2555
2556                 iounmap((device_reg_t __iomem *)ha->nx_pcibase);
2557                 if (!ql2xdbwr)
2558                         iounmap((device_reg_t __iomem *)ha->nxdb_wr_ptr);
2559         } else {
2560                 if (ha->iobase)
2561                         iounmap(ha->iobase);
2562
2563                 if (ha->mqiobase)
2564                         iounmap(ha->mqiobase);
2565         }
2566
2567         pci_release_selected_regions(ha->pdev, ha->bars);
2568         kfree(ha);
2569         ha = NULL;
2570
2571         pci_disable_pcie_error_reporting(pdev);
2572
2573         pci_disable_device(pdev);
2574         pci_set_drvdata(pdev, NULL);
2575 }
2576
2577 static void
2578 qla2x00_free_device(scsi_qla_host_t *vha)
2579 {
2580         struct qla_hw_data *ha = vha->hw;
2581
2582         qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
2583
2584         /* Disable timer */
2585         if (vha->timer_active)
2586                 qla2x00_stop_timer(vha);
2587
2588         /* Kill the kernel thread for this host */
2589         if (ha->dpc_thread) {
2590                 struct task_struct *t = ha->dpc_thread;
2591
2592                 /*
2593                  * qla2xxx_wake_dpc checks for ->dpc_thread
2594                  * so we need to zero it out.
2595                  */
2596                 ha->dpc_thread = NULL;
2597                 kthread_stop(t);
2598         }
2599
2600         qla25xx_delete_queues(vha);
2601
2602         if (ha->flags.fce_enabled)
2603                 qla2x00_disable_fce_trace(vha, NULL, NULL);
2604
2605         if (ha->eft)
2606                 qla2x00_disable_eft_trace(vha);
2607
2608         /* Stop currently executing firmware. */
2609         qla2x00_try_to_stop_firmware(vha);
2610
2611         vha->flags.online = 0;
2612
2613         /* turn-off interrupts on the card */
2614         if (ha->interrupts_on) {
2615                 vha->flags.init_done = 0;
2616                 ha->isp_ops->disable_intrs(ha);
2617         }
2618
2619         qla2x00_free_irqs(vha);
2620
2621         qla2x00_free_fcports(vha);
2622
2623         qla2x00_mem_free(ha);
2624
2625         qla82xx_md_free(vha);
2626
2627         qla2x00_free_queues(ha);
2628 }
2629
2630 void qla2x00_free_fcports(struct scsi_qla_host *vha)
2631 {
2632         fc_port_t *fcport, *tfcport;
2633
2634         list_for_each_entry_safe(fcport, tfcport, &vha->vp_fcports, list) {
2635                 list_del(&fcport->list);
2636                 kfree(fcport);
2637                 fcport = NULL;
2638         }
2639 }
2640
2641 static inline void
2642 qla2x00_schedule_rport_del(struct scsi_qla_host *vha, fc_port_t *fcport,
2643     int defer)
2644 {
2645         struct fc_rport *rport;
2646         scsi_qla_host_t *base_vha;
2647         unsigned long flags;
2648
2649         if (!fcport->rport)
2650                 return;
2651
2652         rport = fcport->rport;
2653         if (defer) {
2654                 base_vha = pci_get_drvdata(vha->hw->pdev);
2655                 spin_lock_irqsave(vha->host->host_lock, flags);
2656                 fcport->drport = rport;
2657                 spin_unlock_irqrestore(vha->host->host_lock, flags);
2658                 set_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
2659                 qla2xxx_wake_dpc(base_vha);
2660         } else
2661                 fc_remote_port_delete(rport);
2662 }
2663
2664 /*
2665  * qla2x00_mark_device_lost Updates fcport state when device goes offline.
2666  *
2667  * Input: ha = adapter block pointer.  fcport = port structure pointer.
2668  *
2669  * Return: None.
2670  *
2671  * Context:
2672  */
2673 void qla2x00_mark_device_lost(scsi_qla_host_t *vha, fc_port_t *fcport,
2674     int do_login, int defer)
2675 {
2676         if (atomic_read(&fcport->state) == FCS_ONLINE &&
2677             vha->vp_idx == fcport->vp_idx) {
2678                 qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
2679                 qla2x00_schedule_rport_del(vha, fcport, defer);
2680         }
2681         /*
2682          * We may need to retry the login, so don't change the state of the
2683          * port but do the retries.
2684          */
2685         if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
2686                 qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
2687
2688         if (!do_login)
2689                 return;
2690
2691         if (fcport->login_retry == 0) {
2692                 fcport->login_retry = vha->hw->login_retry_count;
2693                 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
2694
2695                 ql_dbg(ql_dbg_disc, vha, 0x2067,
2696                     "Port login retry "
2697                     "%02x%02x%02x%02x%02x%02x%02x%02x, "
2698                     "id = 0x%04x retry cnt=%d.\n",
2699                     fcport->port_name[0], fcport->port_name[1],
2700                     fcport->port_name[2], fcport->port_name[3],
2701                     fcport->port_name[4], fcport->port_name[5],
2702                     fcport->port_name[6], fcport->port_name[7],
2703                     fcport->loop_id, fcport->login_retry);
2704         }
2705 }
2706
2707 /*
2708  * qla2x00_mark_all_devices_lost
2709  *      Updates fcport state when device goes offline.
2710  *
2711  * Input:
2712  *      ha = adapter block pointer.
2713  *      fcport = port structure pointer.
2714  *
2715  * Return:
2716  *      None.
2717  *
2718  * Context:
2719  */
2720 void
2721 qla2x00_mark_all_devices_lost(scsi_qla_host_t *vha, int defer)
2722 {
2723         fc_port_t *fcport;
2724
2725         list_for_each_entry(fcport, &vha->vp_fcports, list) {
2726                 if (vha->vp_idx != 0 && vha->vp_idx != fcport->vp_idx)
2727                         continue;
2728
2729                 /*
2730                  * No point in marking the device as lost, if the device is
2731                  * already DEAD.
2732                  */
2733                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
2734                         continue;
2735                 if (atomic_read(&fcport->state) == FCS_ONLINE) {
2736                         qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
2737                         if (defer)
2738                                 qla2x00_schedule_rport_del(vha, fcport, defer);
2739                         else if (vha->vp_idx == fcport->vp_idx)
2740                                 qla2x00_schedule_rport_del(vha, fcport, defer);
2741                 }
2742         }
2743 }
2744
2745 /*
2746 * qla2x00_mem_alloc
2747 *      Allocates adapter memory.
2748 *
2749 * Returns:
2750 *      0  = success.
2751 *      !0  = failure.
2752 */
2753 static int
2754 qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len,
2755         struct req_que **req, struct rsp_que **rsp)
2756 {
2757         char    name[16];
2758
2759         ha->init_cb = dma_alloc_coherent(&ha->pdev->dev, ha->init_cb_size,
2760                 &ha->init_cb_dma, GFP_KERNEL);
2761         if (!ha->init_cb)
2762                 goto fail;
2763
2764         ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
2765                 &ha->gid_list_dma, GFP_KERNEL);
2766         if (!ha->gid_list)
2767                 goto fail_free_init_cb;
2768
2769         ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
2770         if (!ha->srb_mempool)
2771                 goto fail_free_gid_list;
2772
2773         if (IS_QLA82XX(ha)) {
2774                 /* Allocate cache for CT6 Ctx. */
2775                 if (!ctx_cachep) {
2776                         ctx_cachep = kmem_cache_create("qla2xxx_ctx",
2777                                 sizeof(struct ct6_dsd), 0,
2778                                 SLAB_HWCACHE_ALIGN, NULL);
2779                         if (!ctx_cachep)
2780                                 goto fail_free_gid_list;
2781                 }
2782                 ha->ctx_mempool = mempool_create_slab_pool(SRB_MIN_REQ,
2783                         ctx_cachep);
2784                 if (!ha->ctx_mempool)
2785                         goto fail_free_srb_mempool;
2786                 ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0021,
2787                     "ctx_cachep=%p ctx_mempool=%p.\n",
2788                     ctx_cachep, ha->ctx_mempool);
2789         }
2790
2791         /* Get memory for cached NVRAM */
2792         ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
2793         if (!ha->nvram)
2794                 goto fail_free_ctx_mempool;
2795
2796         snprintf(name, sizeof(name), "%s_%d", QLA2XXX_DRIVER_NAME,
2797                 ha->pdev->device);
2798         ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2799                 DMA_POOL_SIZE, 8, 0);
2800         if (!ha->s_dma_pool)
2801                 goto fail_free_nvram;
2802
2803         ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0022,
2804             "init_cb=%p gid_list=%p, srb_mempool=%p s_dma_pool=%p.\n",
2805             ha->init_cb, ha->gid_list, ha->srb_mempool, ha->s_dma_pool);
2806
2807         if (IS_QLA82XX(ha) || ql2xenabledif) {
2808                 ha->dl_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2809                         DSD_LIST_DMA_POOL_SIZE, 8, 0);
2810                 if (!ha->dl_dma_pool) {
2811                         ql_log_pci(ql_log_fatal, ha->pdev, 0x0023,
2812                             "Failed to allocate memory for dl_dma_pool.\n");
2813                         goto fail_s_dma_pool;
2814                 }
2815
2816                 ha->fcp_cmnd_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2817                         FCP_CMND_DMA_POOL_SIZE, 8, 0);
2818                 if (!ha->fcp_cmnd_dma_pool) {
2819                         ql_log_pci(ql_log_fatal, ha->pdev, 0x0024,
2820                             "Failed to allocate memory for fcp_cmnd_dma_pool.\n");
2821                         goto fail_dl_dma_pool;
2822                 }
2823                 ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0025,
2824                     "dl_dma_pool=%p fcp_cmnd_dma_pool=%p.\n",
2825                     ha->dl_dma_pool, ha->fcp_cmnd_dma_pool);
2826         }
2827
2828         /* Allocate memory for SNS commands */
2829         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
2830         /* Get consistent memory allocated for SNS commands */
2831                 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
2832                 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, GFP_KERNEL);
2833                 if (!ha->sns_cmd)
2834                         goto fail_dma_pool;
2835                 ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0026,
2836                     "sns_cmd: %p.\n", ha->sns_cmd);
2837         } else {
2838         /* Get consistent memory allocated for MS IOCB */
2839                 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2840                         &ha->ms_iocb_dma);
2841                 if (!ha->ms_iocb)
2842                         goto fail_dma_pool;
2843         /* Get consistent memory allocated for CT SNS commands */
2844                 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
2845                         sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, GFP_KERNEL);
2846                 if (!ha->ct_sns)
2847                         goto fail_free_ms_iocb;
2848                 ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0027,
2849                     "ms_iocb=%p ct_sns=%p.\n",
2850                     ha->ms_iocb, ha->ct_sns);
2851         }
2852
2853         /* Allocate memory for request ring */
2854         *req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
2855         if (!*req) {
2856                 ql_log_pci(ql_log_fatal, ha->pdev, 0x0028,
2857                     "Failed to allocate memory for req.\n");
2858                 goto fail_req;
2859         }
2860         (*req)->length = req_len;
2861         (*req)->ring = dma_alloc_coherent(&ha->pdev->dev,
2862                 ((*req)->length + 1) * sizeof(request_t),
2863                 &(*req)->dma, GFP_KERNEL);
2864         if (!(*req)->ring) {
2865                 ql_log_pci(ql_log_fatal, ha->pdev, 0x0029,
2866                     "Failed to allocate memory for req_ring.\n");
2867                 goto fail_req_ring;
2868         }
2869         /* Allocate memory for response ring */
2870         *rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
2871         if (!*rsp) {
2872                 ql_log_pci(ql_log_fatal, ha->pdev, 0x002a,
2873                     "Failed to allocate memory for rsp.\n");
2874                 goto fail_rsp;
2875         }
2876         (*rsp)->hw = ha;
2877         (*rsp)->length = rsp_len;
2878         (*rsp)->ring = dma_alloc_coherent(&ha->pdev->dev,
2879                 ((*rsp)->length + 1) * sizeof(response_t),
2880                 &(*rsp)->dma, GFP_KERNEL);
2881         if (!(*rsp)->ring) {
2882                 ql_log_pci(ql_log_fatal, ha->pdev, 0x002b,
2883                     "Failed to allocate memory for rsp_ring.\n");
2884                 goto fail_rsp_ring;
2885         }
2886         (*req)->rsp = *rsp;
2887         (*rsp)->req = *req;
2888         ql_dbg_pci(ql_dbg_init, ha->pdev, 0x002c,
2889             "req=%p req->length=%d req->ring=%p rsp=%p "
2890             "rsp->length=%d rsp->ring=%p.\n",
2891             *req, (*req)->length, (*req)->ring, *rsp, (*rsp)->length,
2892             (*rsp)->ring);
2893         /* Allocate memory for NVRAM data for vports */
2894         if (ha->nvram_npiv_size) {
2895                 ha->npiv_info = kzalloc(sizeof(struct qla_npiv_entry) *
2896                     ha->nvram_npiv_size, GFP_KERNEL);
2897                 if (!ha->npiv_info) {
2898                         ql_log_pci(ql_log_fatal, ha->pdev, 0x002d,
2899                             "Failed to allocate memory for npiv_info.\n");
2900                         goto fail_npiv_info;
2901                 }
2902         } else
2903                 ha->npiv_info = NULL;
2904
2905         /* Get consistent memory allocated for EX-INIT-CB. */
2906         if (IS_QLA8XXX_TYPE(ha)) {
2907                 ha->ex_init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2908                     &ha->ex_init_cb_dma);
2909                 if (!ha->ex_init_cb)
2910                         goto fail_ex_init_cb;
2911                 ql_dbg_pci(ql_dbg_init, ha->pdev, 0x002e,
2912                     "ex_init_cb=%p.\n", ha->ex_init_cb);
2913         }
2914
2915         INIT_LIST_HEAD(&ha->gbl_dsd_list);
2916
2917         /* Get consistent memory allocated for Async Port-Database. */
2918         if (!IS_FWI2_CAPABLE(ha)) {
2919                 ha->async_pd = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2920                         &ha->async_pd_dma);
2921                 if (!ha->async_pd)
2922                         goto fail_async_pd;
2923                 ql_dbg_pci(ql_dbg_init, ha->pdev, 0x002f,
2924                     "async_pd=%p.\n", ha->async_pd);
2925         }
2926
2927         INIT_LIST_HEAD(&ha->vp_list);
2928         return 1;
2929
2930 fail_async_pd:
2931         dma_pool_free(ha->s_dma_pool, ha->ex_init_cb, ha->ex_init_cb_dma);
2932 fail_ex_init_cb:
2933         kfree(ha->npiv_info);
2934 fail_npiv_info:
2935         dma_free_coherent(&ha->pdev->dev, ((*rsp)->length + 1) *
2936                 sizeof(response_t), (*rsp)->ring, (*rsp)->dma);
2937         (*rsp)->ring = NULL;
2938         (*rsp)->dma = 0;
2939 fail_rsp_ring:
2940         kfree(*rsp);
2941 fail_rsp:
2942         dma_free_coherent(&ha->pdev->dev, ((*req)->length + 1) *
2943                 sizeof(request_t), (*req)->ring, (*req)->dma);
2944         (*req)->ring = NULL;
2945         (*req)->dma = 0;
2946 fail_req_ring:
2947         kfree(*req);
2948 fail_req:
2949         dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2950                 ha->ct_sns, ha->ct_sns_dma);
2951         ha->ct_sns = NULL;
2952         ha->ct_sns_dma = 0;
2953 fail_free_ms_iocb:
2954         dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2955         ha->ms_iocb = NULL;
2956         ha->ms_iocb_dma = 0;
2957 fail_dma_pool:
2958         if (IS_QLA82XX(ha) || ql2xenabledif) {
2959                 dma_pool_destroy(ha->fcp_cmnd_dma_pool);
2960                 ha->fcp_cmnd_dma_pool = NULL;
2961         }
2962 fail_dl_dma_pool:
2963         if (IS_QLA82XX(ha) || ql2xenabledif) {
2964                 dma_pool_destroy(ha->dl_dma_pool);
2965                 ha->dl_dma_pool = NULL;
2966         }
2967 fail_s_dma_pool:
2968         dma_pool_destroy(ha->s_dma_pool);
2969         ha->s_dma_pool = NULL;
2970 fail_free_nvram:
2971         kfree(ha->nvram);
2972         ha->nvram = NULL;
2973 fail_free_ctx_mempool:
2974         mempool_destroy(ha->ctx_mempool);
2975         ha->ctx_mempool = NULL;
2976 fail_free_srb_mempool:
2977         mempool_destroy(ha->srb_mempool);
2978         ha->srb_mempool = NULL;
2979 fail_free_gid_list:
2980         dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2981         ha->gid_list_dma);
2982         ha->gid_list = NULL;
2983         ha->gid_list_dma = 0;
2984 fail_free_init_cb:
2985         dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb,
2986         ha->init_cb_dma);
2987         ha->init_cb = NULL;
2988         ha->init_cb_dma = 0;
2989 fail:
2990         ql_log(ql_log_fatal, NULL, 0x0030,
2991             "Memory allocation failure.\n");
2992         return -ENOMEM;
2993 }
2994
2995 /*
2996 * qla2x00_free_fw_dump
2997 *       Frees fw dump stuff.
2998 *
2999 * Input:
3000 *       ha = adapter block pointer.
3001 */
3002 static void
3003 qla2x00_free_fw_dump(struct qla_hw_data *ha)
3004 {
3005         if (ha->fce)
3006                 dma_free_coherent(&ha->pdev->dev, FCE_SIZE, ha->fce,
3007                     ha->fce_dma);
3008
3009         if (ha->fw_dump) {
3010                 if (ha->eft)
3011                         dma_free_coherent(&ha->pdev->dev,
3012                             ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
3013                 vfree(ha->fw_dump);
3014         }
3015         ha->fce = NULL;
3016         ha->fce_dma = 0;
3017         ha->eft = NULL;
3018         ha->eft_dma = 0;
3019         ha->fw_dump = NULL;
3020         ha->fw_dumped = 0;
3021         ha->fw_dump_reading = 0;
3022 }
3023
3024 /*
3025 * qla2x00_mem_free
3026 *      Frees all adapter allocated memory.
3027 *
3028 * Input:
3029 *      ha = adapter block pointer.
3030 */
3031 static void
3032 qla2x00_mem_free(struct qla_hw_data *ha)
3033 {
3034         qla2x00_free_fw_dump(ha);
3035
3036         if (ha->srb_mempool)
3037                 mempool_destroy(ha->srb_mempool);
3038
3039         if (ha->dcbx_tlv)
3040                 dma_free_coherent(&ha->pdev->dev, DCBX_TLV_DATA_SIZE,
3041                     ha->dcbx_tlv, ha->dcbx_tlv_dma);
3042
3043         if (ha->xgmac_data)
3044                 dma_free_coherent(&ha->pdev->dev, XGMAC_DATA_SIZE,
3045                     ha->xgmac_data, ha->xgmac_data_dma);
3046
3047         if (ha->sns_cmd)
3048                 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
3049                 ha->sns_cmd, ha->sns_cmd_dma);
3050
3051         if (ha->ct_sns)
3052                 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
3053                 ha->ct_sns, ha->ct_sns_dma);
3054
3055         if (ha->sfp_data)
3056                 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
3057
3058         if (ha->edc_data)
3059                 dma_pool_free(ha->s_dma_pool, ha->edc_data, ha->edc_data_dma);
3060
3061         if (ha->ms_iocb)
3062                 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
3063
3064         if (ha->ex_init_cb)
3065                 dma_pool_free(ha->s_dma_pool,
3066                         ha->ex_init_cb, ha->ex_init_cb_dma);
3067
3068         if (ha->async_pd)
3069                 dma_pool_free(ha->s_dma_pool, ha->async_pd, ha->async_pd_dma);
3070
3071         if (ha->s_dma_pool)
3072                 dma_pool_destroy(ha->s_dma_pool);
3073
3074         if (ha->gid_list)
3075                 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
3076                 ha->gid_list_dma);
3077
3078         if (IS_QLA82XX(ha)) {
3079                 if (!list_empty(&ha->gbl_dsd_list)) {
3080                         struct dsd_dma *dsd_ptr, *tdsd_ptr;
3081
3082                         /* clean up allocated prev pool */
3083                         list_for_each_entry_safe(dsd_ptr,
3084                                 tdsd_ptr, &ha->gbl_dsd_list, list) {
3085                                 dma_pool_free(ha->dl_dma_pool,
3086                                 dsd_ptr->dsd_addr, dsd_ptr->dsd_list_dma);
3087                                 list_del(&dsd_ptr->list);
3088                                 kfree(dsd_ptr);
3089                         }
3090                 }
3091         }
3092
3093         if (ha->dl_dma_pool)
3094                 dma_pool_destroy(ha->dl_dma_pool);
3095
3096         if (ha->fcp_cmnd_dma_pool)
3097                 dma_pool_destroy(ha->fcp_cmnd_dma_pool);
3098
3099         if (ha->ctx_mempool)
3100                 mempool_destroy(ha->ctx_mempool);
3101
3102         if (ha->init_cb)
3103                 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
3104                         ha->init_cb, ha->init_cb_dma);
3105         vfree(ha->optrom_buffer);
3106         kfree(ha->nvram);
3107         kfree(ha->npiv_info);
3108
3109         ha->srb_mempool = NULL;
3110         ha->ctx_mempool = NULL;
3111         ha->sns_cmd = NULL;
3112         ha->sns_cmd_dma = 0;
3113         ha->ct_sns = NULL;
3114         ha->ct_sns_dma = 0;
3115         ha->ms_iocb = NULL;
3116         ha->ms_iocb_dma = 0;
3117         ha->init_cb = NULL;
3118         ha->init_cb_dma = 0;
3119         ha->ex_init_cb = NULL;
3120         ha->ex_init_cb_dma = 0;
3121         ha->async_pd = NULL;
3122         ha->async_pd_dma = 0;
3123
3124         ha->s_dma_pool = NULL;
3125         ha->dl_dma_pool = NULL;
3126         ha->fcp_cmnd_dma_pool = NULL;
3127
3128         ha->gid_list = NULL;
3129         ha->gid_list_dma = 0;
3130 }
3131
3132 struct scsi_qla_host *qla2x00_create_host(struct scsi_host_template *sht,
3133                                                 struct qla_hw_data *ha)
3134 {
3135         struct Scsi_Host *host;
3136         struct scsi_qla_host *vha = NULL;
3137
3138         host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
3139         if (host == NULL) {
3140                 ql_log_pci(ql_log_fatal, ha->pdev, 0x0107,
3141                     "Failed to allocate host from the scsi layer, aborting.\n");
3142                 goto fail;
3143         }
3144
3145         /* Clear our data area */
3146         vha = shost_priv(host);
3147         memset(vha, 0, sizeof(scsi_qla_host_t));
3148
3149         vha->host = host;
3150         vha->host_no = host->host_no;
3151         vha->hw = ha;
3152
3153         INIT_LIST_HEAD(&vha->vp_fcports);
3154         INIT_LIST_HEAD(&vha->work_list);
3155         INIT_LIST_HEAD(&vha->list);
3156
3157         spin_lock_init(&vha->work_lock);
3158
3159         sprintf(vha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, vha->host_no);
3160         ql_dbg(ql_dbg_init, vha, 0x0041,
3161             "Allocated the host=%p hw=%p vha=%p dev_name=%s",
3162             vha->host, vha->hw, vha,
3163             dev_name(&(ha->pdev->dev)));
3164
3165         return vha;
3166
3167 fail:
3168         return vha;
3169 }
3170
3171 static struct qla_work_evt *
3172 qla2x00_alloc_work(struct scsi_qla_host *vha, enum qla_work_type type)
3173 {
3174         struct qla_work_evt *e;
3175         uint8_t bail;
3176
3177         QLA_VHA_MARK_BUSY(vha, bail);
3178         if (bail)
3179                 return NULL;
3180
3181         e = kzalloc(sizeof(struct qla_work_evt), GFP_ATOMIC);
3182         if (!e) {
3183                 QLA_VHA_MARK_NOT_BUSY(vha);
3184                 return NULL;
3185         }
3186
3187         INIT_LIST_HEAD(&e->list);
3188         e->type = type;
3189         e->flags = QLA_EVT_FLAG_FREE;
3190         return e;
3191 }
3192
3193 static int
3194 qla2x00_post_work(struct scsi_qla_host *vha, struct qla_work_evt *e)
3195 {
3196         unsigned long flags;
3197
3198         spin_lock_irqsave(&vha->work_lock, flags);
3199         list_add_tail(&e->list, &vha->work_list);
3200         spin_unlock_irqrestore(&vha->work_lock, flags);
3201         qla2xxx_wake_dpc(vha);
3202
3203         return QLA_SUCCESS;
3204 }
3205
3206 int
3207 qla2x00_post_aen_work(struct scsi_qla_host *vha, enum fc_host_event_code code,
3208     u32 data)
3209 {
3210         struct qla_work_evt *e;
3211
3212         e = qla2x00_alloc_work(vha, QLA_EVT_AEN);
3213         if (!e)
3214                 return QLA_FUNCTION_FAILED;
3215
3216         e->u.aen.code = code;
3217         e->u.aen.data = data;
3218         return qla2x00_post_work(vha, e);
3219 }
3220
3221 int
3222 qla2x00_post_idc_ack_work(struct scsi_qla_host *vha, uint16_t *mb)
3223 {
3224         struct qla_work_evt *e;
3225
3226         e = qla2x00_alloc_work(vha, QLA_EVT_IDC_ACK);
3227         if (!e)
3228                 return QLA_FUNCTION_FAILED;
3229
3230         memcpy(e->u.idc_ack.mb, mb, QLA_IDC_ACK_REGS * sizeof(uint16_t));
3231         return qla2x00_post_work(vha, e);
3232 }
3233
3234 #define qla2x00_post_async_work(name, type)     \
3235 int qla2x00_post_async_##name##_work(           \
3236     struct scsi_qla_host *vha,                  \
3237     fc_port_t *fcport, uint16_t *data)          \
3238 {                                               \
3239         struct qla_work_evt *e;                 \
3240                                                 \
3241         e = qla2x00_alloc_work(vha, type);      \
3242         if (!e)                                 \
3243                 return QLA_FUNCTION_FAILED;     \
3244                                                 \
3245         e->u.logio.fcport = fcport;             \
3246         if (data) {                             \
3247                 e->u.logio.data[0] = data[0];   \
3248                 e->u.logio.data[1] = data[1];   \
3249         }                                       \
3250         return qla2x00_post_work(vha, e);       \
3251 }
3252
3253 qla2x00_post_async_work(login, QLA_EVT_ASYNC_LOGIN);
3254 qla2x00_post_async_work(login_done, QLA_EVT_ASYNC_LOGIN_DONE);
3255 qla2x00_post_async_work(logout, QLA_EVT_ASYNC_LOGOUT);
3256 qla2x00_post_async_work(logout_done, QLA_EVT_ASYNC_LOGOUT_DONE);
3257 qla2x00_post_async_work(adisc, QLA_EVT_ASYNC_ADISC);
3258 qla2x00_post_async_work(adisc_done, QLA_EVT_ASYNC_ADISC_DONE);
3259
3260 int
3261 qla2x00_post_uevent_work(struct scsi_qla_host *vha, u32 code)
3262 {
3263         struct qla_work_evt *e;
3264
3265         e = qla2x00_alloc_work(vha, QLA_EVT_UEVENT);
3266         if (!e)
3267                 return QLA_FUNCTION_FAILED;
3268
3269         e->u.uevent.code = code;
3270         return qla2x00_post_work(vha, e);
3271 }
3272
3273 static void
3274 qla2x00_uevent_emit(struct scsi_qla_host *vha, u32 code)
3275 {
3276         char event_string[40];
3277         char *envp[] = { event_string, NULL };
3278
3279         switch (code) {
3280         case QLA_UEVENT_CODE_FW_DUMP:
3281                 snprintf(event_string, sizeof(event_string), "FW_DUMP=%ld",
3282                     vha->host_no);
3283                 break;
3284         default:
3285                 /* do nothing */
3286                 break;
3287         }
3288         kobject_uevent_env(&vha->hw->pdev->dev.kobj, KOBJ_CHANGE, envp);
3289 }
3290
3291 void
3292 qla2x00_do_work(struct scsi_qla_host *vha)
3293 {
3294         struct qla_work_evt *e, *tmp;
3295         unsigned long flags;
3296         LIST_HEAD(work);
3297
3298         spin_lock_irqsave(&vha->work_lock, flags);
3299         list_splice_init(&vha->work_list, &work);
3300         spin_unlock_irqrestore(&vha->work_lock, flags);
3301
3302         list_for_each_entry_safe(e, tmp, &work, list) {
3303                 list_del_init(&e->list);
3304
3305                 switch (e->type) {
3306                 case QLA_EVT_AEN:
3307                         fc_host_post_event(vha->host, fc_get_event_number(),
3308                             e->u.aen.code, e->u.aen.data);
3309                         break;
3310                 case QLA_EVT_IDC_ACK:
3311                         qla81xx_idc_ack(vha, e->u.idc_ack.mb);
3312                         break;
3313                 case QLA_EVT_ASYNC_LOGIN:
3314                         qla2x00_async_login(vha, e->u.logio.fcport,
3315                             e->u.logio.data);
3316                         break;
3317                 case QLA_EVT_ASYNC_LOGIN_DONE:
3318                         qla2x00_async_login_done(vha, e->u.logio.fcport,
3319                             e->u.logio.data);
3320                         break;
3321                 case QLA_EVT_ASYNC_LOGOUT:
3322                         qla2x00_async_logout(vha, e->u.logio.fcport);
3323                         break;
3324                 case QLA_EVT_ASYNC_LOGOUT_DONE:
3325                         qla2x00_async_logout_done(vha, e->u.logio.fcport,
3326                             e->u.logio.data);
3327                         break;
3328                 case QLA_EVT_ASYNC_ADISC:
3329                         qla2x00_async_adisc(vha, e->u.logio.fcport,
3330                             e->u.logio.data);
3331                         break;
3332                 case QLA_EVT_ASYNC_ADISC_DONE:
3333                         qla2x00_async_adisc_done(vha, e->u.logio.fcport,
3334                             e->u.logio.data);
3335                         break;
3336                 case QLA_EVT_UEVENT:
3337                         qla2x00_uevent_emit(vha, e->u.uevent.code);
3338                         break;
3339                 }
3340                 if (e->flags & QLA_EVT_FLAG_FREE)
3341                         kfree(e);
3342
3343                 /* For each work completed decrement vha ref count */
3344                 QLA_VHA_MARK_NOT_BUSY(vha);
3345         }
3346 }
3347
3348 /* Relogins all the fcports of a vport
3349  * Context: dpc thread
3350  */
3351 void qla2x00_relogin(struct scsi_qla_host *vha)
3352 {
3353         fc_port_t       *fcport;
3354         int status;
3355         uint16_t        next_loopid = 0;
3356         struct qla_hw_data *ha = vha->hw;
3357         uint16_t data[2];
3358
3359         list_for_each_entry(fcport, &vha->vp_fcports, list) {
3360         /*
3361          * If the port is not ONLINE then try to login
3362          * to it if we haven't run out of retries.
3363          */
3364                 if (atomic_read(&fcport->state) != FCS_ONLINE &&
3365                     fcport->login_retry && !(fcport->flags & FCF_ASYNC_SENT)) {
3366                         fcport->login_retry--;
3367                         if (fcport->flags & FCF_FABRIC_DEVICE) {
3368                                 if (fcport->flags & FCF_FCP2_DEVICE)
3369                                         ha->isp_ops->fabric_logout(vha,
3370                                                         fcport->loop_id,
3371                                                         fcport->d_id.b.domain,
3372                                                         fcport->d_id.b.area,
3373                                                         fcport->d_id.b.al_pa);
3374
3375                                 if (fcport->loop_id == FC_NO_LOOP_ID) {
3376                                         fcport->loop_id = next_loopid =
3377                                             ha->min_external_loopid;
3378                                         status = qla2x00_find_new_loop_id(
3379                                             vha, fcport);
3380                                         if (status != QLA_SUCCESS) {
3381                                                 /* Ran out of IDs to use */
3382                                                 break;
3383                                         }
3384                                 }
3385
3386                                 if (IS_ALOGIO_CAPABLE(ha)) {
3387                                         fcport->flags |= FCF_ASYNC_SENT;
3388                                         data[0] = 0;
3389                                         data[1] = QLA_LOGIO_LOGIN_RETRIED;
3390                                         status = qla2x00_post_async_login_work(
3391                                             vha, fcport, data);
3392                                         if (status == QLA_SUCCESS)
3393                                                 continue;
3394                                         /* Attempt a retry. */
3395                                         status = 1;
3396                                 } else
3397                                         status = qla2x00_fabric_login(vha,
3398                                             fcport, &next_loopid);
3399                         } else
3400                                 status = qla2x00_local_device_login(vha,
3401                                                                 fcport);
3402
3403                         if (status == QLA_SUCCESS) {
3404                                 fcport->old_loop_id = fcport->loop_id;
3405
3406                                 ql_dbg(ql_dbg_disc, vha, 0x2003,
3407                                     "Port login OK: logged in ID 0x%x.\n",
3408                                     fcport->loop_id);
3409
3410                                 qla2x00_update_fcport(vha, fcport);
3411
3412                         } else if (status == 1) {
3413                                 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
3414                                 /* retry the login again */
3415                                 ql_dbg(ql_dbg_disc, vha, 0x2007,
3416                                     "Retrying %d login again loop_id 0x%x.\n",
3417                                     fcport->login_retry, fcport->loop_id);
3418                         } else {
3419                                 fcport->login_retry = 0;
3420                         }
3421
3422                         if (fcport->login_retry == 0 && status != QLA_SUCCESS)
3423                                 fcport->loop_id = FC_NO_LOOP_ID;
3424                 }
3425                 if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
3426                         break;
3427         }
3428 }
3429
3430 /**************************************************************************
3431 * qla2x00_do_dpc
3432 *   This kernel thread is a task that is schedule by the interrupt handler
3433 *   to perform the background processing for interrupts.
3434 *
3435 * Notes:
3436 * This task always run in the context of a kernel thread.  It
3437 * is kick-off by the driver's detect code and starts up
3438 * up one per adapter. It immediately goes to sleep and waits for
3439 * some fibre event.  When either the interrupt handler or
3440 * the timer routine detects a event it will one of the task
3441 * bits then wake us up.
3442 **************************************************************************/
3443 static int
3444 qla2x00_do_dpc(void *data)
3445 {
3446         int             rval;
3447         scsi_qla_host_t *base_vha;
3448         struct qla_hw_data *ha;
3449
3450         ha = (struct qla_hw_data *)data;
3451         base_vha = pci_get_drvdata(ha->pdev);
3452
3453         set_user_nice(current, -20);
3454
3455         set_current_state(TASK_INTERRUPTIBLE);
3456         while (!kthread_should_stop()) {
3457                 ql_dbg(ql_dbg_dpc, base_vha, 0x4000,
3458                     "DPC handler sleeping.\n");
3459
3460                 schedule();
3461                 __set_current_state(TASK_RUNNING);
3462
3463                 if (!base_vha->flags.init_done || ha->flags.mbox_busy)
3464                         goto end_loop;
3465
3466                 if (ha->flags.eeh_busy) {
3467                         ql_dbg(ql_dbg_dpc, base_vha, 0x4003,
3468                             "eeh_busy=%d.\n", ha->flags.eeh_busy);
3469                         goto end_loop;
3470                 }
3471
3472                 ha->dpc_active = 1;
3473
3474                 ql_dbg(ql_dbg_dpc, base_vha, 0x4001,
3475                     "DPC handler waking up.\n");
3476                 ql_dbg(ql_dbg_dpc, base_vha, 0x4002,
3477                     "dpc_flags=0x%lx.\n", base_vha->dpc_flags);
3478
3479                 qla2x00_do_work(base_vha);
3480
3481                 if (IS_QLA82XX(ha)) {
3482                         if (test_and_clear_bit(ISP_UNRECOVERABLE,
3483                                 &base_vha->dpc_flags)) {
3484                                 qla82xx_idc_lock(ha);
3485                                 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3486                                         QLA82XX_DEV_FAILED);
3487                                 qla82xx_idc_unlock(ha);
3488                                 ql_log(ql_log_info, base_vha, 0x4004,
3489                                     "HW State: FAILED.\n");
3490                                 qla82xx_device_state_handler(base_vha);
3491                                 continue;
3492                         }
3493
3494                         if (test_and_clear_bit(FCOE_CTX_RESET_NEEDED,
3495                                 &base_vha->dpc_flags)) {
3496
3497                                 ql_dbg(ql_dbg_dpc, base_vha, 0x4005,
3498                                     "FCoE context reset scheduled.\n");
3499                                 if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
3500                                         &base_vha->dpc_flags))) {
3501                                         if (qla82xx_fcoe_ctx_reset(base_vha)) {
3502                                                 /* FCoE-ctx reset failed.
3503                                                  * Escalate to chip-reset
3504                                                  */
3505                                                 set_bit(ISP_ABORT_NEEDED,
3506                                                         &base_vha->dpc_flags);
3507                                         }
3508                                         clear_bit(ABORT_ISP_ACTIVE,
3509                                                 &base_vha->dpc_flags);
3510                                 }
3511
3512                                 ql_dbg(ql_dbg_dpc, base_vha, 0x4006,
3513                                     "FCoE context reset end.\n");
3514                         }
3515                 }
3516
3517                 if (test_and_clear_bit(ISP_ABORT_NEEDED,
3518                                                 &base_vha->dpc_flags)) {
3519
3520                         ql_dbg(ql_dbg_dpc, base_vha, 0x4007,
3521                             "ISP abort scheduled.\n");
3522                         if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
3523                             &base_vha->dpc_flags))) {
3524
3525                                 if (ha->isp_ops->abort_isp(base_vha)) {
3526                                         /* failed. retry later */
3527                                         set_bit(ISP_ABORT_NEEDED,
3528                                             &base_vha->dpc_flags);
3529                                 }
3530                                 clear_bit(ABORT_ISP_ACTIVE,
3531                                                 &base_vha->dpc_flags);
3532                         }
3533
3534                         ql_dbg(ql_dbg_dpc, base_vha, 0x4008,
3535                             "ISP abort end.\n");
3536                 }
3537
3538                 if (test_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags)) {
3539                         qla2x00_update_fcports(base_vha);
3540                         clear_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
3541                 }
3542
3543                 if (test_bit(ISP_QUIESCE_NEEDED, &base_vha->dpc_flags)) {
3544                         ql_dbg(ql_dbg_dpc, base_vha, 0x4009,
3545                             "Quiescence mode scheduled.\n");
3546                         qla82xx_device_state_handler(base_vha);
3547                         clear_bit(ISP_QUIESCE_NEEDED, &base_vha->dpc_flags);
3548                         if (!ha->flags.quiesce_owner) {
3549                                 qla2x00_perform_loop_resync(base_vha);
3550
3551                                 qla82xx_idc_lock(ha);
3552                                 qla82xx_clear_qsnt_ready(base_vha);
3553                                 qla82xx_idc_unlock(ha);
3554                         }
3555                         ql_dbg(ql_dbg_dpc, base_vha, 0x400a,
3556                             "Quiescence mode end.\n");
3557                 }
3558
3559                 if (test_and_clear_bit(RESET_MARKER_NEEDED,
3560                                                         &base_vha->dpc_flags) &&
3561                     (!(test_and_set_bit(RESET_ACTIVE, &base_vha->dpc_flags)))) {
3562
3563                         ql_dbg(ql_dbg_dpc, base_vha, 0x400b,
3564                             "Reset marker scheduled.\n");
3565                         qla2x00_rst_aen(base_vha);
3566                         clear_bit(RESET_ACTIVE, &base_vha->dpc_flags);
3567                         ql_dbg(ql_dbg_dpc, base_vha, 0x400c,
3568                             "Reset marker end.\n");
3569                 }
3570
3571                 /* Retry each device up to login retry count */
3572                 if ((test_and_clear_bit(RELOGIN_NEEDED,
3573                                                 &base_vha->dpc_flags)) &&
3574                     !test_bit(LOOP_RESYNC_NEEDED, &base_vha->dpc_flags) &&
3575                     atomic_read(&base_vha->loop_state) != LOOP_DOWN) {
3576
3577                         ql_dbg(ql_dbg_dpc, base_vha, 0x400d,
3578                             "Relogin scheduled.\n");
3579                         qla2x00_relogin(base_vha);
3580                         ql_dbg(ql_dbg_dpc, base_vha, 0x400e,
3581                             "Relogin end.\n");
3582                 }
3583
3584                 if (test_and_clear_bit(LOOP_RESYNC_NEEDED,
3585                                                         &base_vha->dpc_flags)) {
3586
3587                         ql_dbg(ql_dbg_dpc, base_vha, 0x400f,
3588                             "Loop resync scheduled.\n");
3589
3590                         if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
3591                             &base_vha->dpc_flags))) {
3592
3593                                 rval = qla2x00_loop_resync(base_vha);
3594
3595                                 clear_bit(LOOP_RESYNC_ACTIVE,
3596                                                 &base_vha->dpc_flags);
3597                         }
3598
3599                         ql_dbg(ql_dbg_dpc, base_vha, 0x4010,
3600                             "Loop resync end.\n");
3601                 }
3602
3603                 if (test_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags) &&
3604                     atomic_read(&base_vha->loop_state) == LOOP_READY) {
3605                         clear_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags);
3606                         qla2xxx_flash_npiv_conf(base_vha);
3607                 }
3608
3609                 if (!ha->interrupts_on)
3610                         ha->isp_ops->enable_intrs(ha);
3611
3612                 if (test_and_clear_bit(BEACON_BLINK_NEEDED,
3613                                         &base_vha->dpc_flags))
3614                         ha->isp_ops->beacon_blink(base_vha);
3615
3616                 qla2x00_do_dpc_all_vps(base_vha);
3617
3618                 ha->dpc_active = 0;
3619 end_loop:
3620                 set_current_state(TASK_INTERRUPTIBLE);
3621         } /* End of while(1) */
3622         __set_current_state(TASK_RUNNING);
3623
3624         ql_dbg(ql_dbg_dpc, base_vha, 0x4011,
3625             "DPC handler exiting.\n");
3626
3627         /*
3628          * Make sure that nobody tries to wake us up again.
3629          */
3630         ha->dpc_active = 0;
3631
3632         /* Cleanup any residual CTX SRBs. */
3633         qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
3634
3635         return 0;
3636 }
3637
3638 void
3639 qla2xxx_wake_dpc(struct scsi_qla_host *vha)
3640 {
3641         struct qla_hw_data *ha = vha->hw;
3642         struct task_struct *t = ha->dpc_thread;
3643
3644         if (!test_bit(UNLOADING, &vha->dpc_flags) && t)
3645                 wake_up_process(t);
3646 }
3647
3648 /*
3649 *  qla2x00_rst_aen
3650 *      Processes asynchronous reset.
3651 *
3652 * Input:
3653 *      ha  = adapter block pointer.
3654 */
3655 static void
3656 qla2x00_rst_aen(scsi_qla_host_t *vha)
3657 {
3658         if (vha->flags.online && !vha->flags.reset_active &&
3659             !atomic_read(&vha->loop_down_timer) &&
3660             !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))) {
3661                 do {
3662                         clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
3663
3664                         /*
3665                          * Issue marker command only when we are going to start
3666                          * the I/O.
3667                          */
3668                         vha->marker_needed = 1;
3669                 } while (!atomic_read(&vha->loop_down_timer) &&
3670                     (test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags)));
3671         }
3672 }
3673
3674 static void
3675 qla2x00_sp_free_dma(srb_t *sp)
3676 {
3677         struct scsi_cmnd *cmd = sp->cmd;
3678         struct qla_hw_data *ha = sp->fcport->vha->hw;
3679
3680         if (sp->flags & SRB_DMA_VALID) {
3681                 scsi_dma_unmap(cmd);
3682                 sp->flags &= ~SRB_DMA_VALID;
3683         }
3684
3685         if (sp->flags & SRB_CRC_PROT_DMA_VALID) {
3686                 dma_unmap_sg(&ha->pdev->dev, scsi_prot_sglist(cmd),
3687                     scsi_prot_sg_count(cmd), cmd->sc_data_direction);
3688                 sp->flags &= ~SRB_CRC_PROT_DMA_VALID;
3689         }
3690
3691         if (sp->flags & SRB_CRC_CTX_DSD_VALID) {
3692                 /* List assured to be having elements */
3693                 qla2x00_clean_dsd_pool(ha, sp);
3694                 sp->flags &= ~SRB_CRC_CTX_DSD_VALID;
3695         }
3696
3697         if (sp->flags & SRB_CRC_CTX_DMA_VALID) {
3698                 dma_pool_free(ha->dl_dma_pool, sp->ctx,
3699                     ((struct crc_context *)sp->ctx)->crc_ctx_dma);
3700                 sp->flags &= ~SRB_CRC_CTX_DMA_VALID;
3701         }
3702
3703         if (sp->flags & SRB_FCP_CMND_DMA_VALID) {
3704                 struct ct6_dsd *ctx = sp->ctx;
3705                 dma_pool_free(ha->fcp_cmnd_dma_pool, ctx->fcp_cmnd,
3706                         ctx->fcp_cmnd_dma);
3707                 list_splice(&ctx->dsd_list, &ha->gbl_dsd_list);
3708                 ha->gbl_dsd_inuse -= ctx->dsd_use_cnt;
3709                 ha->gbl_dsd_avail += ctx->dsd_use_cnt;
3710                 mempool_free(sp->ctx, ha->ctx_mempool);
3711                 sp->ctx = NULL;
3712         }
3713
3714         CMD_SP(cmd) = NULL;
3715 }
3716
3717 static void
3718 qla2x00_sp_final_compl(struct qla_hw_data *ha, srb_t *sp)
3719 {
3720         struct scsi_cmnd *cmd = sp->cmd;
3721
3722         qla2x00_sp_free_dma(sp);
3723         mempool_free(sp, ha->srb_mempool);
3724         cmd->scsi_done(cmd);
3725 }
3726
3727 void
3728 qla2x00_sp_compl(struct qla_hw_data *ha, srb_t *sp)
3729 {
3730         if (atomic_read(&sp->ref_count) == 0) {
3731                 ql_dbg(ql_dbg_io, sp->fcport->vha, 0x3015,
3732                     "SP reference-count to ZERO -- sp=%p cmd=%p.\n",
3733                     sp, sp->cmd);
3734                 if (ql2xextended_error_logging & ql_dbg_io)
3735                         BUG();
3736                 return;
3737         }
3738         if (!atomic_dec_and_test(&sp->ref_count))
3739                 return;
3740         qla2x00_sp_final_compl(ha, sp);
3741 }
3742
3743 /**************************************************************************
3744 *   qla2x00_timer
3745 *
3746 * Description:
3747 *   One second timer
3748 *
3749 * Context: Interrupt
3750 ***************************************************************************/
3751 void
3752 qla2x00_timer(scsi_qla_host_t *vha)
3753 {
3754         unsigned long   cpu_flags = 0;
3755         int             start_dpc = 0;
3756         int             index;
3757         srb_t           *sp;
3758         uint16_t        w;
3759         struct qla_hw_data *ha = vha->hw;
3760         struct req_que *req;
3761
3762         if (ha->flags.eeh_busy) {
3763                 ql_dbg(ql_dbg_timer, vha, 0x6000,
3764                     "EEH = %d, restarting timer.\n",
3765                     ha->flags.eeh_busy);
3766                 qla2x00_restart_timer(vha, WATCH_INTERVAL);
3767                 return;
3768         }
3769
3770         /* Hardware read to raise pending EEH errors during mailbox waits. */
3771         if (!pci_channel_offline(ha->pdev))
3772                 pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
3773
3774         /* Make sure qla82xx_watchdog is run only for physical port */
3775         if (!vha->vp_idx && IS_QLA82XX(ha)) {
3776                 if (test_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags))
3777                         start_dpc++;
3778                 qla82xx_watchdog(vha);
3779         }
3780
3781         /* Loop down handler. */
3782         if (atomic_read(&vha->loop_down_timer) > 0 &&
3783             !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) &&
3784             !(test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags))
3785                 && vha->flags.online) {
3786
3787                 if (atomic_read(&vha->loop_down_timer) ==
3788                     vha->loop_down_abort_time) {
3789
3790                         ql_log(ql_log_info, vha, 0x6008,
3791                             "Loop down - aborting the queues before time expires.\n");
3792
3793                         if (!IS_QLA2100(ha) && vha->link_down_timeout)
3794                                 atomic_set(&vha->loop_state, LOOP_DEAD);
3795
3796                         /*
3797                          * Schedule an ISP abort to return any FCP2-device
3798                          * commands.
3799                          */
3800                         /* NPIV - scan physical port only */
3801                         if (!vha->vp_idx) {
3802                                 spin_lock_irqsave(&ha->hardware_lock,
3803                                     cpu_flags);
3804                                 req = ha->req_q_map[0];
3805                                 for (index = 1;
3806                                     index < MAX_OUTSTANDING_COMMANDS;
3807                                     index++) {
3808                                         fc_port_t *sfcp;
3809
3810                                         sp = req->outstanding_cmds[index];
3811                                         if (!sp)
3812                                                 continue;
3813                                         if (sp->ctx && !IS_PROT_IO(sp))
3814                                                 continue;
3815                                         sfcp = sp->fcport;
3816                                         if (!(sfcp->flags & FCF_FCP2_DEVICE))
3817                                                 continue;
3818
3819                                         if (IS_QLA82XX(ha))
3820                                                 set_bit(FCOE_CTX_RESET_NEEDED,
3821                                                         &vha->dpc_flags);
3822                                         else
3823                                                 set_bit(ISP_ABORT_NEEDED,
3824                                                         &vha->dpc_flags);
3825                                         break;
3826                                 }
3827                                 spin_unlock_irqrestore(&ha->hardware_lock,
3828                                                                 cpu_flags);
3829                         }
3830                         start_dpc++;
3831                 }
3832
3833                 /* if the loop has been down for 4 minutes, reinit adapter */
3834                 if (atomic_dec_and_test(&vha->loop_down_timer) != 0) {
3835                         if (!(vha->device_flags & DFLG_NO_CABLE)) {
3836                                 ql_log(ql_log_warn, vha, 0x6009,
3837                                     "Loop down - aborting ISP.\n");
3838
3839                                 if (IS_QLA82XX(ha))
3840                                         set_bit(FCOE_CTX_RESET_NEEDED,
3841                                                 &vha->dpc_flags);
3842                                 else
3843                                         set_bit(ISP_ABORT_NEEDED,
3844                                                 &vha->dpc_flags);
3845                         }
3846                 }
3847                 ql_dbg(ql_dbg_timer, vha, 0x600a,
3848                     "Loop down - seconds remaining %d.\n",
3849                     atomic_read(&vha->loop_down_timer));
3850         }
3851
3852         /* Check if beacon LED needs to be blinked for physical host only */
3853         if (!vha->vp_idx && (ha->beacon_blink_led == 1)) {
3854                 /* There is no beacon_blink function for ISP82xx */
3855                 if (!IS_QLA82XX(ha)) {
3856                         set_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags);
3857                         start_dpc++;
3858                 }
3859         }
3860
3861         /* Process any deferred work. */
3862         if (!list_empty(&vha->work_list))
3863                 start_dpc++;
3864
3865         /* Schedule the DPC routine if needed */
3866         if ((test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) ||
3867             test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) ||
3868             test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags) ||
3869             start_dpc ||
3870             test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) ||
3871             test_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags) ||
3872             test_bit(ISP_UNRECOVERABLE, &vha->dpc_flags) ||
3873             test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) ||
3874             test_bit(VP_DPC_NEEDED, &vha->dpc_flags) ||
3875             test_bit(RELOGIN_NEEDED, &vha->dpc_flags))) {
3876                 ql_dbg(ql_dbg_timer, vha, 0x600b,
3877                     "isp_abort_needed=%d loop_resync_needed=%d "
3878                     "fcport_update_needed=%d start_dpc=%d "
3879                     "reset_marker_needed=%d",
3880                     test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags),
3881                     test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags),
3882                     test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags),
3883                     start_dpc,
3884                     test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags));
3885                 ql_dbg(ql_dbg_timer, vha, 0x600c,
3886                     "beacon_blink_needed=%d isp_unrecoverable=%d "
3887                     "fcoe_ctx_reset_needed=%d vp_dpc_needed=%d "
3888                     "relogin_needed=%d.\n",
3889                     test_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags),
3890                     test_bit(ISP_UNRECOVERABLE, &vha->dpc_flags),
3891                     test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags),
3892                     test_bit(VP_DPC_NEEDED, &vha->dpc_flags),
3893                     test_bit(RELOGIN_NEEDED, &vha->dpc_flags));
3894                 qla2xxx_wake_dpc(vha);
3895         }
3896
3897         qla2x00_restart_timer(vha, WATCH_INTERVAL);
3898 }
3899
3900 /* Firmware interface routines. */
3901
3902 #define FW_BLOBS        8
3903 #define FW_ISP21XX      0
3904 #define FW_ISP22XX      1
3905 #define FW_ISP2300      2
3906 #define FW_ISP2322      3
3907 #define FW_ISP24XX      4
3908 #define FW_ISP25XX      5
3909 #define FW_ISP81XX      6
3910 #define FW_ISP82XX      7
3911
3912 #define FW_FILE_ISP21XX "ql2100_fw.bin"
3913 #define FW_FILE_ISP22XX "ql2200_fw.bin"
3914 #define FW_FILE_ISP2300 "ql2300_fw.bin"
3915 #define FW_FILE_ISP2322 "ql2322_fw.bin"
3916 #define FW_FILE_ISP24XX "ql2400_fw.bin"
3917 #define FW_FILE_ISP25XX "ql2500_fw.bin"
3918 #define FW_FILE_ISP81XX "ql8100_fw.bin"
3919 #define FW_FILE_ISP82XX "ql8200_fw.bin"
3920
3921 static DEFINE_MUTEX(qla_fw_lock);
3922
3923 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
3924         { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
3925         { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
3926         { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
3927         { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
3928         { .name = FW_FILE_ISP24XX, },
3929         { .name = FW_FILE_ISP25XX, },
3930         { .name = FW_FILE_ISP81XX, },
3931         { .name = FW_FILE_ISP82XX, },
3932 };
3933
3934 struct fw_blob *
3935 qla2x00_request_firmware(scsi_qla_host_t *vha)
3936 {
3937         struct qla_hw_data *ha = vha->hw;
3938         struct fw_blob *blob;
3939
3940         blob = NULL;
3941         if (IS_QLA2100(ha)) {
3942                 blob = &qla_fw_blobs[FW_ISP21XX];
3943         } else if (IS_QLA2200(ha)) {
3944                 blob = &qla_fw_blobs[FW_ISP22XX];
3945         } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
3946                 blob = &qla_fw_blobs[FW_ISP2300];
3947         } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
3948                 blob = &qla_fw_blobs[FW_ISP2322];
3949         } else if (IS_QLA24XX_TYPE(ha)) {
3950                 blob = &qla_fw_blobs[FW_ISP24XX];
3951         } else if (IS_QLA25XX(ha)) {
3952                 blob = &qla_fw_blobs[FW_ISP25XX];
3953         } else if (IS_QLA81XX(ha)) {
3954                 blob = &qla_fw_blobs[FW_ISP81XX];
3955         } else if (IS_QLA82XX(ha)) {
3956                 blob = &qla_fw_blobs[FW_ISP82XX];
3957         }
3958
3959         mutex_lock(&qla_fw_lock);
3960         if (blob->fw)
3961                 goto out;
3962
3963         if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
3964                 ql_log(ql_log_warn, vha, 0x0063,
3965                     "Failed to load firmware image (%s).\n", blob->name);
3966                 blob->fw = NULL;
3967                 blob = NULL;
3968                 goto out;
3969         }
3970
3971 out:
3972         mutex_unlock(&qla_fw_lock);
3973         return blob;
3974 }
3975
3976 static void
3977 qla2x00_release_firmware(void)
3978 {
3979         int idx;
3980
3981         mutex_lock(&qla_fw_lock);
3982         for (idx = 0; idx < FW_BLOBS; idx++)
3983                 if (qla_fw_blobs[idx].fw)
3984                         release_firmware(qla_fw_blobs[idx].fw);
3985         mutex_unlock(&qla_fw_lock);
3986 }
3987
3988 static pci_ers_result_t
3989 qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
3990 {
3991         scsi_qla_host_t *vha = pci_get_drvdata(pdev);
3992         struct qla_hw_data *ha = vha->hw;
3993
3994         ql_dbg(ql_dbg_aer, vha, 0x9000,
3995             "PCI error detected, state %x.\n", state);
3996
3997         switch (state) {
3998         case pci_channel_io_normal:
3999                 ha->flags.eeh_busy = 0;
4000                 return PCI_ERS_RESULT_CAN_RECOVER;
4001         case pci_channel_io_frozen:
4002                 ha->flags.eeh_busy = 1;
4003                 /* For ISP82XX complete any pending mailbox cmd */
4004                 if (IS_QLA82XX(ha)) {
4005                         ha->flags.isp82xx_fw_hung = 1;
4006                         ql_dbg(ql_dbg_aer, vha, 0x9001, "Pci channel io frozen\n");
4007                         qla82xx_clear_pending_mbx(vha);
4008                 }
4009                 qla2x00_free_irqs(vha);
4010                 pci_disable_device(pdev);
4011                 /* Return back all IOs */
4012                 qla2x00_abort_all_cmds(vha, DID_RESET << 16);
4013                 return PCI_ERS_RESULT_NEED_RESET;
4014         case pci_channel_io_perm_failure:
4015                 ha->flags.pci_channel_io_perm_failure = 1;
4016                 qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
4017                 return PCI_ERS_RESULT_DISCONNECT;
4018         }
4019         return PCI_ERS_RESULT_NEED_RESET;
4020 }
4021
4022 static pci_ers_result_t
4023 qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
4024 {
4025         int risc_paused = 0;
4026         uint32_t stat;
4027         unsigned long flags;
4028         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
4029         struct qla_hw_data *ha = base_vha->hw;
4030         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
4031         struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
4032
4033         if (IS_QLA82XX(ha))
4034                 return PCI_ERS_RESULT_RECOVERED;
4035
4036         spin_lock_irqsave(&ha->hardware_lock, flags);
4037         if (IS_QLA2100(ha) || IS_QLA2200(ha)){
4038                 stat = RD_REG_DWORD(&reg->hccr);
4039                 if (stat & HCCR_RISC_PAUSE)
4040                         risc_paused = 1;
4041         } else if (IS_QLA23XX(ha)) {
4042                 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
4043                 if (stat & HSR_RISC_PAUSED)
4044                         risc_paused = 1;
4045         } else if (IS_FWI2_CAPABLE(ha)) {
4046                 stat = RD_REG_DWORD(&reg24->host_status);
4047                 if (stat & HSRX_RISC_PAUSED)
4048                         risc_paused = 1;
4049         }
4050         spin_unlock_irqrestore(&ha->hardware_lock, flags);
4051
4052         if (risc_paused) {
4053                 ql_log(ql_log_info, base_vha, 0x9003,
4054                     "RISC paused -- mmio_enabled, Dumping firmware.\n");
4055                 ha->isp_ops->fw_dump(base_vha, 0);
4056
4057                 return PCI_ERS_RESULT_NEED_RESET;
4058         } else
4059                 return PCI_ERS_RESULT_RECOVERED;
4060 }
4061
4062 uint32_t qla82xx_error_recovery(scsi_qla_host_t *base_vha)
4063 {
4064         uint32_t rval = QLA_FUNCTION_FAILED;
4065         uint32_t drv_active = 0;
4066         struct qla_hw_data *ha = base_vha->hw;
4067         int fn;
4068         struct pci_dev *other_pdev = NULL;
4069
4070         ql_dbg(ql_dbg_aer, base_vha, 0x9006,
4071             "Entered %s.\n", __func__);
4072
4073         set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
4074
4075         if (base_vha->flags.online) {
4076                 /* Abort all outstanding commands,
4077                  * so as to be requeued later */
4078                 qla2x00_abort_isp_cleanup(base_vha);
4079         }
4080
4081
4082         fn = PCI_FUNC(ha->pdev->devfn);
4083         while (fn > 0) {
4084                 fn--;
4085                 ql_dbg(ql_dbg_aer, base_vha, 0x9007,
4086                     "Finding pci device at function = 0x%x.\n", fn);
4087                 other_pdev =
4088                     pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus),
4089                     ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
4090                     fn));
4091
4092                 if (!other_pdev)
4093                         continue;
4094                 if (atomic_read(&other_pdev->enable_cnt)) {
4095                         ql_dbg(ql_dbg_aer, base_vha, 0x9008,
4096                             "Found PCI func available and enable at 0x%x.\n",
4097                             fn);
4098                         pci_dev_put(other_pdev);
4099                         break;
4100                 }
4101                 pci_dev_put(other_pdev);
4102         }
4103
4104         if (!fn) {
4105                 /* Reset owner */
4106                 ql_dbg(ql_dbg_aer, base_vha, 0x9009,
4107                     "This devfn is reset owner = 0x%x.\n",
4108                     ha->pdev->devfn);
4109                 qla82xx_idc_lock(ha);
4110
4111                 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
4112                     QLA82XX_DEV_INITIALIZING);
4113
4114                 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION,
4115                     QLA82XX_IDC_VERSION);
4116
4117                 drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
4118                 ql_dbg(ql_dbg_aer, base_vha, 0x900a,
4119                     "drv_active = 0x%x.\n", drv_active);
4120
4121                 qla82xx_idc_unlock(ha);
4122                 /* Reset if device is not already reset
4123                  * drv_active would be 0 if a reset has already been done
4124                  */
4125                 if (drv_active)
4126                         rval = qla82xx_start_firmware(base_vha);
4127                 else
4128                         rval = QLA_SUCCESS;
4129                 qla82xx_idc_lock(ha);
4130
4131                 if (rval != QLA_SUCCESS) {
4132                         ql_log(ql_log_info, base_vha, 0x900b,
4133                             "HW State: FAILED.\n");
4134                         qla82xx_clear_drv_active(ha);
4135                         qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
4136                             QLA82XX_DEV_FAILED);
4137                 } else {
4138                         ql_log(ql_log_info, base_vha, 0x900c,
4139                             "HW State: READY.\n");
4140                         qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
4141                             QLA82XX_DEV_READY);
4142                         qla82xx_idc_unlock(ha);
4143                         ha->flags.isp82xx_fw_hung = 0;
4144                         rval = qla82xx_restart_isp(base_vha);
4145                         qla82xx_idc_lock(ha);
4146                         /* Clear driver state register */
4147                         qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, 0);
4148                         qla82xx_set_drv_active(base_vha);
4149                 }
4150                 qla82xx_idc_unlock(ha);
4151         } else {
4152                 ql_dbg(ql_dbg_aer, base_vha, 0x900d,
4153                     "This devfn is not reset owner = 0x%x.\n",
4154                     ha->pdev->devfn);
4155                 if ((qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE) ==
4156                     QLA82XX_DEV_READY)) {
4157                         ha->flags.isp82xx_fw_hung = 0;
4158                         rval = qla82xx_restart_isp(base_vha);
4159                         qla82xx_idc_lock(ha);
4160                         qla82xx_set_drv_active(base_vha);
4161                         qla82xx_idc_unlock(ha);
4162                 }
4163         }
4164         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
4165
4166         return rval;
4167 }
4168
4169 static pci_ers_result_t
4170 qla2xxx_pci_slot_reset(struct pci_dev *pdev)
4171 {
4172         pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
4173         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
4174         struct qla_hw_data *ha = base_vha->hw;
4175         struct rsp_que *rsp;
4176         int rc, retries = 10;
4177
4178         ql_dbg(ql_dbg_aer, base_vha, 0x9004,
4179             "Slot Reset.\n");
4180
4181         /* Workaround: qla2xxx driver which access hardware earlier
4182          * needs error state to be pci_channel_io_online.
4183          * Otherwise mailbox command timesout.
4184          */
4185         pdev->error_state = pci_channel_io_normal;
4186
4187         pci_restore_state(pdev);
4188
4189         /* pci_restore_state() clears the saved_state flag of the device
4190          * save restored state which resets saved_state flag
4191          */
4192         pci_save_state(pdev);
4193
4194         if (ha->mem_only)
4195                 rc = pci_enable_device_mem(pdev);
4196         else
4197                 rc = pci_enable_device(pdev);
4198
4199         if (rc) {
4200                 ql_log(ql_log_warn, base_vha, 0x9005,
4201                     "Can't re-enable PCI device after reset.\n");
4202                 goto exit_slot_reset;
4203         }
4204
4205         rsp = ha->rsp_q_map[0];
4206         if (qla2x00_request_irqs(ha, rsp))
4207                 goto exit_slot_reset;
4208
4209         if (ha->isp_ops->pci_config(base_vha))
4210                 goto exit_slot_reset;
4211
4212         if (IS_QLA82XX(ha)) {
4213                 if (qla82xx_error_recovery(base_vha) == QLA_SUCCESS) {
4214                         ret = PCI_ERS_RESULT_RECOVERED;
4215                         goto exit_slot_reset;
4216                 } else
4217                         goto exit_slot_reset;
4218         }
4219
4220         while (ha->flags.mbox_busy && retries--)
4221                 msleep(1000);
4222
4223         set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
4224         if (ha->isp_ops->abort_isp(base_vha) == QLA_SUCCESS)
4225                 ret =  PCI_ERS_RESULT_RECOVERED;
4226         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
4227
4228
4229 exit_slot_reset:
4230         ql_dbg(ql_dbg_aer, base_vha, 0x900e,
4231             "slot_reset return %x.\n", ret);
4232
4233         return ret;
4234 }
4235
4236 static void
4237 qla2xxx_pci_resume(struct pci_dev *pdev)
4238 {
4239         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
4240         struct qla_hw_data *ha = base_vha->hw;
4241         int ret;
4242
4243         ql_dbg(ql_dbg_aer, base_vha, 0x900f,
4244             "pci_resume.\n");
4245
4246         ret = qla2x00_wait_for_hba_online(base_vha);
4247         if (ret != QLA_SUCCESS) {
4248                 ql_log(ql_log_fatal, base_vha, 0x9002,
4249                     "The device failed to resume I/O from slot/link_reset.\n");
4250         }
4251
4252         pci_cleanup_aer_uncorrect_error_status(pdev);
4253
4254         ha->flags.eeh_busy = 0;
4255 }
4256
4257 static struct pci_error_handlers qla2xxx_err_handler = {
4258         .error_detected = qla2xxx_pci_error_detected,
4259         .mmio_enabled = qla2xxx_pci_mmio_enabled,
4260         .slot_reset = qla2xxx_pci_slot_reset,
4261         .resume = qla2xxx_pci_resume,
4262 };
4263
4264 static struct pci_device_id qla2xxx_pci_tbl[] = {
4265         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
4266         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
4267         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
4268         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
4269         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
4270         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
4271         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
4272         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
4273         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
4274         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8432) },
4275         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
4276         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
4277         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
4278         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8001) },
4279         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8021) },
4280         { 0 },
4281 };
4282 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
4283
4284 static struct pci_driver qla2xxx_pci_driver = {
4285         .name           = QLA2XXX_DRIVER_NAME,
4286         .driver         = {
4287                 .owner          = THIS_MODULE,
4288         },
4289         .id_table       = qla2xxx_pci_tbl,
4290         .probe          = qla2x00_probe_one,
4291         .remove         = qla2x00_remove_one,
4292         .shutdown       = qla2x00_shutdown,
4293         .err_handler    = &qla2xxx_err_handler,
4294 };
4295
4296 static struct file_operations apidev_fops = {
4297         .owner = THIS_MODULE,
4298         .llseek = noop_llseek,
4299 };
4300
4301 /**
4302  * qla2x00_module_init - Module initialization.
4303  **/
4304 static int __init
4305 qla2x00_module_init(void)
4306 {
4307         int ret = 0;
4308
4309         /* Allocate cache for SRBs. */
4310         srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
4311             SLAB_HWCACHE_ALIGN, NULL);
4312         if (srb_cachep == NULL) {
4313                 ql_log(ql_log_fatal, NULL, 0x0001,
4314                     "Unable to allocate SRB cache...Failing load!.\n");
4315                 return -ENOMEM;
4316         }
4317
4318         /* Derive version string. */
4319         strcpy(qla2x00_version_str, QLA2XXX_VERSION);
4320         if (ql2xextended_error_logging)
4321                 strcat(qla2x00_version_str, "-debug");
4322
4323         qla2xxx_transport_template =
4324             fc_attach_transport(&qla2xxx_transport_functions);
4325         if (!qla2xxx_transport_template) {
4326                 kmem_cache_destroy(srb_cachep);
4327                 ql_log(ql_log_fatal, NULL, 0x0002,
4328                     "fc_attach_transport failed...Failing load!.\n");
4329                 return -ENODEV;
4330         }
4331
4332         apidev_major = register_chrdev(0, QLA2XXX_APIDEV, &apidev_fops);
4333         if (apidev_major < 0) {
4334                 ql_log(ql_log_fatal, NULL, 0x0003,
4335                     "Unable to register char device %s.\n", QLA2XXX_APIDEV);
4336         }
4337
4338         qla2xxx_transport_vport_template =
4339             fc_attach_transport(&qla2xxx_transport_vport_functions);
4340         if (!qla2xxx_transport_vport_template) {
4341                 kmem_cache_destroy(srb_cachep);
4342                 fc_release_transport(qla2xxx_transport_template);
4343                 ql_log(ql_log_fatal, NULL, 0x0004,
4344                     "fc_attach_transport vport failed...Failing load!.\n");
4345                 return -ENODEV;
4346         }
4347         ql_log(ql_log_info, NULL, 0x0005,
4348             "QLogic Fibre Channel HBA Driver: %s.\n",
4349             qla2x00_version_str);
4350         ret = pci_register_driver(&qla2xxx_pci_driver);
4351         if (ret) {
4352                 kmem_cache_destroy(srb_cachep);
4353                 fc_release_transport(qla2xxx_transport_template);
4354                 fc_release_transport(qla2xxx_transport_vport_template);
4355                 ql_log(ql_log_fatal, NULL, 0x0006,
4356                     "pci_register_driver failed...ret=%d Failing load!.\n",
4357                     ret);
4358         }
4359         return ret;
4360 }
4361
4362 /**
4363  * qla2x00_module_exit - Module cleanup.
4364  **/
4365 static void __exit
4366 qla2x00_module_exit(void)
4367 {
4368         unregister_chrdev(apidev_major, QLA2XXX_APIDEV);
4369         pci_unregister_driver(&qla2xxx_pci_driver);
4370         qla2x00_release_firmware();
4371         kmem_cache_destroy(srb_cachep);
4372         if (ctx_cachep)
4373                 kmem_cache_destroy(ctx_cachep);
4374         fc_release_transport(qla2xxx_transport_template);
4375         fc_release_transport(qla2xxx_transport_vport_template);
4376 }
4377
4378 module_init(qla2x00_module_init);
4379 module_exit(qla2x00_module_exit);
4380
4381 MODULE_AUTHOR("QLogic Corporation");
4382 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
4383 MODULE_LICENSE("GPL");
4384 MODULE_VERSION(QLA2XXX_VERSION);
4385 MODULE_FIRMWARE(FW_FILE_ISP21XX);
4386 MODULE_FIRMWARE(FW_FILE_ISP22XX);
4387 MODULE_FIRMWARE(FW_FILE_ISP2300);
4388 MODULE_FIRMWARE(FW_FILE_ISP2322);
4389 MODULE_FIRMWARE(FW_FILE_ISP24XX);
4390 MODULE_FIRMWARE(FW_FILE_ISP25XX);