Version:  2.6.34 2.6.35 2.6.36 2.6.37 2.6.38 2.6.39 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14

Linux/drivers/scsi/qla2xxx/qla_os.c

  1 /*
  2  * QLogic Fibre Channel HBA Driver
  3  * Copyright (c)  2003-2013 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 #include <scsi/scsi_tcq.h>
 17 #include <scsi/scsicam.h>
 18 #include <scsi/scsi_transport.h>
 19 #include <scsi/scsi_transport_fc.h>
 20 
 21 #include "qla_target.h"
 22 
 23 /*
 24  * Driver version
 25  */
 26 char qla2x00_version_str[40];
 27 
 28 static int apidev_major;
 29 
 30 /*
 31  * SRB allocation cache
 32  */
 33 static struct kmem_cache *srb_cachep;
 34 
 35 /*
 36  * CT6 CTX allocation cache
 37  */
 38 static struct kmem_cache *ctx_cachep;
 39 /*
 40  * error level for logging
 41  */
 42 int ql_errlev = ql_log_all;
 43 
 44 static int ql2xenableclass2;
 45 module_param(ql2xenableclass2, int, S_IRUGO|S_IRUSR);
 46 MODULE_PARM_DESC(ql2xenableclass2,
 47                 "Specify if Class 2 operations are supported from the very "
 48                 "beginning. Default is 0 - class 2 not supported.");
 49 
 50 
 51 int ql2xlogintimeout = 20;
 52 module_param(ql2xlogintimeout, int, S_IRUGO);
 53 MODULE_PARM_DESC(ql2xlogintimeout,
 54                 "Login timeout value in seconds.");
 55 
 56 int qlport_down_retry;
 57 module_param(qlport_down_retry, int, S_IRUGO);
 58 MODULE_PARM_DESC(qlport_down_retry,
 59                 "Maximum number of command retries to a port that returns "
 60                 "a PORT-DOWN status.");
 61 
 62 int ql2xplogiabsentdevice;
 63 module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR);
 64 MODULE_PARM_DESC(ql2xplogiabsentdevice,
 65                 "Option to enable PLOGI to devices that are not present after "
 66                 "a Fabric scan.  This is needed for several broken switches. "
 67                 "Default is 0 - no PLOGI. 1 - perfom PLOGI.");
 68 
 69 int ql2xloginretrycount = 0;
 70 module_param(ql2xloginretrycount, int, S_IRUGO);
 71 MODULE_PARM_DESC(ql2xloginretrycount,
 72                 "Specify an alternate value for the NVRAM login retry count.");
 73 
 74 int ql2xallocfwdump = 1;
 75 module_param(ql2xallocfwdump, int, S_IRUGO);
 76 MODULE_PARM_DESC(ql2xallocfwdump,
 77                 "Option to enable allocation of memory for a firmware dump "
 78                 "during HBA initialization.  Memory allocation requirements "
 79                 "vary by ISP type.  Default is 1 - allocate memory.");
 80 
 81 int ql2xextended_error_logging;
 82 module_param(ql2xextended_error_logging, int, S_IRUGO|S_IWUSR);
 83 MODULE_PARM_DESC(ql2xextended_error_logging,
 84                 "Option to enable extended error logging,\n"
 85                 "\t\tDefault is 0 - no logging.  0x40000000 - Module Init & Probe.\n"
 86                 "\t\t0x20000000 - Mailbox Cmnds. 0x10000000 - Device Discovery.\n"
 87                 "\t\t0x08000000 - IO tracing.    0x04000000 - DPC Thread.\n"
 88                 "\t\t0x02000000 - Async events.  0x01000000 - Timer routines.\n"
 89                 "\t\t0x00800000 - User space.    0x00400000 - Task Management.\n"
 90                 "\t\t0x00200000 - AER/EEH.       0x00100000 - Multi Q.\n"
 91                 "\t\t0x00080000 - P3P Specific.  0x00040000 - Virtual Port.\n"
 92                 "\t\t0x00020000 - Buffer Dump.   0x00010000 - Misc.\n"
 93                 "\t\t0x00008000 - Verbose.       0x00004000 - Target.\n"
 94                 "\t\t0x00002000 - Target Mgmt.   0x00001000 - Target TMF.\n"
 95                 "\t\t0x7fffffff - For enabling all logs, can be too many logs.\n"
 96                 "\t\t0x1e400000 - Preferred value for capturing essential "
 97                 "debug information (equivalent to old "
 98                 "ql2xextended_error_logging=1).\n"
 99                 "\t\tDo LOGICAL OR of the value to enable more than one level");
100 
101 int ql2xshiftctondsd = 6;
102 module_param(ql2xshiftctondsd, int, S_IRUGO);
103 MODULE_PARM_DESC(ql2xshiftctondsd,
104                 "Set to control shifting of command type processing "
105                 "based on total number of SG elements.");
106 
107 int ql2xfdmienable=1;
108 module_param(ql2xfdmienable, int, S_IRUGO);
109 MODULE_PARM_DESC(ql2xfdmienable,
110                 "Enables FDMI registrations. "
111                 "0 - no FDMI. Default is 1 - perform FDMI.");
112 
113 #define MAX_Q_DEPTH     32
114 static int ql2xmaxqdepth = MAX_Q_DEPTH;
115 module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR);
116 MODULE_PARM_DESC(ql2xmaxqdepth,
117                 "Maximum queue depth to set for each LUN. "
118                 "Default is 32.");
119 
120 int ql2xenabledif = 2;
121 module_param(ql2xenabledif, int, S_IRUGO);
122 MODULE_PARM_DESC(ql2xenabledif,
123                 " Enable T10-CRC-DIF "
124                 " Default is 0 - No DIF Support. 1 - Enable it"
125                 ", 2 - Enable DIF for all types, except Type 0.");
126 
127 int ql2xenablehba_err_chk = 2;
128 module_param(ql2xenablehba_err_chk, int, S_IRUGO|S_IWUSR);
129 MODULE_PARM_DESC(ql2xenablehba_err_chk,
130                 " Enable T10-CRC-DIF Error isolation by HBA:\n"
131                 " Default is 1.\n"
132                 "  0 -- Error isolation disabled\n"
133                 "  1 -- Error isolation enabled only for DIX Type 0\n"
134                 "  2 -- Error isolation enabled for all Types\n");
135 
136 int ql2xiidmaenable=1;
137 module_param(ql2xiidmaenable, int, S_IRUGO);
138 MODULE_PARM_DESC(ql2xiidmaenable,
139                 "Enables iIDMA settings "
140                 "Default is 1 - perform iIDMA. 0 - no iIDMA.");
141 
142 int ql2xmaxqueues = 1;
143 module_param(ql2xmaxqueues, int, S_IRUGO);
144 MODULE_PARM_DESC(ql2xmaxqueues,
145                 "Enables MQ settings "
146                 "Default is 1 for single queue. Set it to number "
147                 "of queues in MQ mode.");
148 
149 int ql2xmultique_tag;
150 module_param(ql2xmultique_tag, int, S_IRUGO);
151 MODULE_PARM_DESC(ql2xmultique_tag,
152                 "Enables CPU affinity settings for the driver "
153                 "Default is 0 for no affinity of request and response IO. "
154                 "Set it to 1 to turn on the cpu affinity.");
155 
156 int ql2xfwloadbin;
157 module_param(ql2xfwloadbin, int, S_IRUGO|S_IWUSR);
158 MODULE_PARM_DESC(ql2xfwloadbin,
159                 "Option to specify location from which to load ISP firmware:.\n"
160                 " 2 -- load firmware via the request_firmware() (hotplug).\n"
161                 "      interface.\n"
162                 " 1 -- load firmware from flash.\n"
163                 " 0 -- use default semantics.\n");
164 
165 int ql2xetsenable;
166 module_param(ql2xetsenable, int, S_IRUGO);
167 MODULE_PARM_DESC(ql2xetsenable,
168                 "Enables firmware ETS burst."
169                 "Default is 0 - skip ETS enablement.");
170 
171 int ql2xdbwr = 1;
172 module_param(ql2xdbwr, int, S_IRUGO|S_IWUSR);
173 MODULE_PARM_DESC(ql2xdbwr,
174                 "Option to specify scheme for request queue posting.\n"
175                 " 0 -- Regular doorbell.\n"
176                 " 1 -- CAMRAM doorbell (faster).\n");
177 
178 int ql2xtargetreset = 1;
179 module_param(ql2xtargetreset, int, S_IRUGO);
180 MODULE_PARM_DESC(ql2xtargetreset,
181                  "Enable target reset."
182                  "Default is 1 - use hw defaults.");
183 
184 int ql2xgffidenable;
185 module_param(ql2xgffidenable, int, S_IRUGO);
186 MODULE_PARM_DESC(ql2xgffidenable,
187                 "Enables GFF_ID checks of port type. "
188                 "Default is 0 - Do not use GFF_ID information.");
189 
190 int ql2xasynctmfenable;
191 module_param(ql2xasynctmfenable, int, S_IRUGO);
192 MODULE_PARM_DESC(ql2xasynctmfenable,
193                 "Enables issue of TM IOCBs asynchronously via IOCB mechanism"
194                 "Default is 0 - Issue TM IOCBs via mailbox mechanism.");
195 
196 int ql2xdontresethba;
197 module_param(ql2xdontresethba, int, S_IRUGO|S_IWUSR);
198 MODULE_PARM_DESC(ql2xdontresethba,
199                 "Option to specify reset behaviour.\n"
200                 " 0 (Default) -- Reset on failure.\n"
201                 " 1 -- Do not reset on failure.\n");
202 
203 uint ql2xmaxlun = MAX_LUNS;
204 module_param(ql2xmaxlun, uint, S_IRUGO);
205 MODULE_PARM_DESC(ql2xmaxlun,
206                 "Defines the maximum LU number to register with the SCSI "
207                 "midlayer. Default is 65535.");
208 
209 int ql2xmdcapmask = 0x1F;
210 module_param(ql2xmdcapmask, int, S_IRUGO);
211 MODULE_PARM_DESC(ql2xmdcapmask,
212                 "Set the Minidump driver capture mask level. "
213                 "Default is 0x1F - Can be set to 0x3, 0x7, 0xF, 0x1F, 0x7F.");
214 
215 int ql2xmdenable = 1;
216 module_param(ql2xmdenable, int, S_IRUGO);
217 MODULE_PARM_DESC(ql2xmdenable,
218                 "Enable/disable MiniDump. "
219                 "0 - MiniDump disabled. "
220                 "1 (Default) - MiniDump enabled.");
221 
222 /*
223  * SCSI host template entry points
224  */
225 static int qla2xxx_slave_configure(struct scsi_device * device);
226 static int qla2xxx_slave_alloc(struct scsi_device *);
227 static int qla2xxx_scan_finished(struct Scsi_Host *, unsigned long time);
228 static void qla2xxx_scan_start(struct Scsi_Host *);
229 static void qla2xxx_slave_destroy(struct scsi_device *);
230 static int qla2xxx_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *cmd);
231 static int qla2xxx_eh_abort(struct scsi_cmnd *);
232 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
233 static int qla2xxx_eh_target_reset(struct scsi_cmnd *);
234 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
235 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
236 
237 static int qla2x00_change_queue_depth(struct scsi_device *, int, int);
238 static int qla2x00_change_queue_type(struct scsi_device *, int);
239 static void qla2x00_free_device(scsi_qla_host_t *);
240 
241 struct scsi_host_template qla2xxx_driver_template = {
242         .module                 = THIS_MODULE,
243         .name                   = QLA2XXX_DRIVER_NAME,
244         .queuecommand           = qla2xxx_queuecommand,
245 
246         .eh_abort_handler       = qla2xxx_eh_abort,
247         .eh_device_reset_handler = qla2xxx_eh_device_reset,
248         .eh_target_reset_handler = qla2xxx_eh_target_reset,
249         .eh_bus_reset_handler   = qla2xxx_eh_bus_reset,
250         .eh_host_reset_handler  = qla2xxx_eh_host_reset,
251 
252         .slave_configure        = qla2xxx_slave_configure,
253 
254         .slave_alloc            = qla2xxx_slave_alloc,
255         .slave_destroy          = qla2xxx_slave_destroy,
256         .scan_finished          = qla2xxx_scan_finished,
257         .scan_start             = qla2xxx_scan_start,
258         .change_queue_depth     = qla2x00_change_queue_depth,
259         .change_queue_type      = qla2x00_change_queue_type,
260         .this_id                = -1,
261         .cmd_per_lun            = 3,
262         .use_clustering         = ENABLE_CLUSTERING,
263         .sg_tablesize           = SG_ALL,
264 
265         .max_sectors            = 0xFFFF,
266         .shost_attrs            = qla2x00_host_attrs,
267 
268         .supported_mode         = MODE_INITIATOR,
269 };
270 
271 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
272 struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
273 
274 /* TODO Convert to inlines
275  *
276  * Timer routines
277  */
278 
279 __inline__ void
280 qla2x00_start_timer(scsi_qla_host_t *vha, void *func, unsigned long interval)
281 {
282         init_timer(&vha->timer);
283         vha->timer.expires = jiffies + interval * HZ;
284         vha->timer.data = (unsigned long)vha;
285         vha->timer.function = (void (*)(unsigned long))func;
286         add_timer(&vha->timer);
287         vha->timer_active = 1;
288 }
289 
290 static inline void
291 qla2x00_restart_timer(scsi_qla_host_t *vha, unsigned long interval)
292 {
293         /* Currently used for 82XX only. */
294         if (vha->device_flags & DFLG_DEV_FAILED) {
295                 ql_dbg(ql_dbg_timer, vha, 0x600d,
296                     "Device in a failed state, returning.\n");
297                 return;
298         }
299 
300         mod_timer(&vha->timer, jiffies + interval * HZ);
301 }
302 
303 static __inline__ void
304 qla2x00_stop_timer(scsi_qla_host_t *vha)
305 {
306         del_timer_sync(&vha->timer);
307         vha->timer_active = 0;
308 }
309 
310 static int qla2x00_do_dpc(void *data);
311 
312 static void qla2x00_rst_aen(scsi_qla_host_t *);
313 
314 static int qla2x00_mem_alloc(struct qla_hw_data *, uint16_t, uint16_t,
315         struct req_que **, struct rsp_que **);
316 static void qla2x00_free_fw_dump(struct qla_hw_data *);
317 static void qla2x00_mem_free(struct qla_hw_data *);
318 
319 /* -------------------------------------------------------------------------- */
320 static int qla2x00_alloc_queues(struct qla_hw_data *ha, struct req_que *req,
321                                 struct rsp_que *rsp)
322 {
323         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
324         ha->req_q_map = kzalloc(sizeof(struct req_que *) * ha->max_req_queues,
325                                 GFP_KERNEL);
326         if (!ha->req_q_map) {
327                 ql_log(ql_log_fatal, vha, 0x003b,
328                     "Unable to allocate memory for request queue ptrs.\n");
329                 goto fail_req_map;
330         }
331 
332         ha->rsp_q_map = kzalloc(sizeof(struct rsp_que *) * ha->max_rsp_queues,
333                                 GFP_KERNEL);
334         if (!ha->rsp_q_map) {
335                 ql_log(ql_log_fatal, vha, 0x003c,
336                     "Unable to allocate memory for response queue ptrs.\n");
337                 goto fail_rsp_map;
338         }
339         /*
340          * Make sure we record at least the request and response queue zero in
341          * case we need to free them if part of the probe fails.
342          */
343         ha->rsp_q_map[0] = rsp;
344         ha->req_q_map[0] = req;
345         set_bit(0, ha->rsp_qid_map);
346         set_bit(0, ha->req_qid_map);
347         return 1;
348 
349 fail_rsp_map:
350         kfree(ha->req_q_map);
351         ha->req_q_map = NULL;
352 fail_req_map:
353         return -ENOMEM;
354 }
355 
356 static void qla2x00_free_req_que(struct qla_hw_data *ha, struct req_que *req)
357 {
358         if (IS_QLAFX00(ha)) {
359                 if (req && req->ring_fx00)
360                         dma_free_coherent(&ha->pdev->dev,
361                             (req->length_fx00 + 1) * sizeof(request_t),
362                             req->ring_fx00, req->dma_fx00);
363         } else if (req && req->ring)
364                 dma_free_coherent(&ha->pdev->dev,
365                 (req->length + 1) * sizeof(request_t),
366                 req->ring, req->dma);
367 
368         if (req)
369                 kfree(req->outstanding_cmds);
370 
371         kfree(req);
372         req = NULL;
373 }
374 
375 static void qla2x00_free_rsp_que(struct qla_hw_data *ha, struct rsp_que *rsp)
376 {
377         if (IS_QLAFX00(ha)) {
378                 if (rsp && rsp->ring)
379                         dma_free_coherent(&ha->pdev->dev,
380                             (rsp->length_fx00 + 1) * sizeof(request_t),
381                             rsp->ring_fx00, rsp->dma_fx00);
382         } else if (rsp && rsp->ring) {
383                 dma_free_coherent(&ha->pdev->dev,
384                 (rsp->length + 1) * sizeof(response_t),
385                 rsp->ring, rsp->dma);
386         }
387         kfree(rsp);
388         rsp = NULL;
389 }
390 
391 static void qla2x00_free_queues(struct qla_hw_data *ha)
392 {
393         struct req_que *req;
394         struct rsp_que *rsp;
395         int cnt;
396 
397         for (cnt = 0; cnt < ha->max_req_queues; cnt++) {
398                 req = ha->req_q_map[cnt];
399                 qla2x00_free_req_que(ha, req);
400         }
401         kfree(ha->req_q_map);
402         ha->req_q_map = NULL;
403 
404         for (cnt = 0; cnt < ha->max_rsp_queues; cnt++) {
405                 rsp = ha->rsp_q_map[cnt];
406                 qla2x00_free_rsp_que(ha, rsp);
407         }
408         kfree(ha->rsp_q_map);
409         ha->rsp_q_map = NULL;
410 }
411 
412 static int qla25xx_setup_mode(struct scsi_qla_host *vha)
413 {
414         uint16_t options = 0;
415         int ques, req, ret;
416         struct qla_hw_data *ha = vha->hw;
417 
418         if (!(ha->fw_attributes & BIT_6)) {
419                 ql_log(ql_log_warn, vha, 0x00d8,
420                     "Firmware is not multi-queue capable.\n");
421                 goto fail;
422         }
423         if (ql2xmultique_tag) {
424                 /* create a request queue for IO */
425                 options |= BIT_7;
426                 req = qla25xx_create_req_que(ha, options, 0, 0, -1,
427                         QLA_DEFAULT_QUE_QOS);
428                 if (!req) {
429                         ql_log(ql_log_warn, vha, 0x00e0,
430                             "Failed to create request queue.\n");
431                         goto fail;
432                 }
433                 ha->wq = alloc_workqueue("qla2xxx_wq", WQ_MEM_RECLAIM, 1);
434                 vha->req = ha->req_q_map[req];
435                 options |= BIT_1;
436                 for (ques = 1; ques < ha->max_rsp_queues; ques++) {
437                         ret = qla25xx_create_rsp_que(ha, options, 0, 0, req);
438                         if (!ret) {
439                                 ql_log(ql_log_warn, vha, 0x00e8,
440                                     "Failed to create response queue.\n");
441                                 goto fail2;
442                         }
443                 }
444                 ha->flags.cpu_affinity_enabled = 1;
445                 ql_dbg(ql_dbg_multiq, vha, 0xc007,
446                     "CPU affinity mode enalbed, "
447                     "no. of response queues:%d no. of request queues:%d.\n",
448                     ha->max_rsp_queues, ha->max_req_queues);
449                 ql_dbg(ql_dbg_init, vha, 0x00e9,
450                     "CPU affinity mode enalbed, "
451                     "no. of response queues:%d no. of request queues:%d.\n",
452                     ha->max_rsp_queues, ha->max_req_queues);
453         }
454         return 0;
455 fail2:
456         qla25xx_delete_queues(vha);
457         destroy_workqueue(ha->wq);
458         ha->wq = NULL;
459         vha->req = ha->req_q_map[0];
460 fail:
461         ha->mqenable = 0;
462         kfree(ha->req_q_map);
463         kfree(ha->rsp_q_map);
464         ha->max_req_queues = ha->max_rsp_queues = 1;
465         return 1;
466 }
467 
468 static char *
469 qla2x00_pci_info_str(struct scsi_qla_host *vha, char *str)
470 {
471         struct qla_hw_data *ha = vha->hw;
472         static char *pci_bus_modes[] = {
473                 "33", "66", "100", "133",
474         };
475         uint16_t pci_bus;
476 
477         strcpy(str, "PCI");
478         pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
479         if (pci_bus) {
480                 strcat(str, "-X (");
481                 strcat(str, pci_bus_modes[pci_bus]);
482         } else {
483                 pci_bus = (ha->pci_attr & BIT_8) >> 8;
484                 strcat(str, " (");
485                 strcat(str, pci_bus_modes[pci_bus]);
486         }
487         strcat(str, " MHz)");
488 
489         return (str);
490 }
491 
492 static char *
493 qla24xx_pci_info_str(struct scsi_qla_host *vha, char *str)
494 {
495         static char *pci_bus_modes[] = { "33", "66", "100", "133", };
496         struct qla_hw_data *ha = vha->hw;
497         uint32_t pci_bus;
498 
499         if (pci_is_pcie(ha->pdev)) {
500                 char lwstr[6];
501                 uint32_t lstat, lspeed, lwidth;
502 
503                 pcie_capability_read_dword(ha->pdev, PCI_EXP_LNKCAP, &lstat);
504                 lspeed = lstat & PCI_EXP_LNKCAP_SLS;
505                 lwidth = (lstat & PCI_EXP_LNKCAP_MLW) >> 4;
506 
507                 strcpy(str, "PCIe (");
508                 switch (lspeed) {
509                 case 1:
510                         strcat(str, "2.5GT/s ");
511                         break;
512                 case 2:
513                         strcat(str, "5.0GT/s ");
514                         break;
515                 case 3:
516                         strcat(str, "8.0GT/s ");
517                         break;
518                 default:
519                         strcat(str, "<unknown> ");
520                         break;
521                 }
522                 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
523                 strcat(str, lwstr);
524 
525                 return str;
526         }
527 
528         strcpy(str, "PCI");
529         pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
530         if (pci_bus == 0 || pci_bus == 8) {
531                 strcat(str, " (");
532                 strcat(str, pci_bus_modes[pci_bus >> 3]);
533         } else {
534                 strcat(str, "-X ");
535                 if (pci_bus & BIT_2)
536                         strcat(str, "Mode 2");
537                 else
538                         strcat(str, "Mode 1");
539                 strcat(str, " (");
540                 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
541         }
542         strcat(str, " MHz)");
543 
544         return str;
545 }
546 
547 static char *
548 qla2x00_fw_version_str(struct scsi_qla_host *vha, char *str)
549 {
550         char un_str[10];
551         struct qla_hw_data *ha = vha->hw;
552 
553         sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
554             ha->fw_minor_version,
555             ha->fw_subminor_version);
556 
557         if (ha->fw_attributes & BIT_9) {
558                 strcat(str, "FLX");
559                 return (str);
560         }
561 
562         switch (ha->fw_attributes & 0xFF) {
563         case 0x7:
564                 strcat(str, "EF");
565                 break;
566         case 0x17:
567                 strcat(str, "TP");
568                 break;
569         case 0x37:
570                 strcat(str, "IP");
571                 break;
572         case 0x77:
573                 strcat(str, "VI");
574                 break;
575         default:
576                 sprintf(un_str, "(%x)", ha->fw_attributes);
577                 strcat(str, un_str);
578                 break;
579         }
580         if (ha->fw_attributes & 0x100)
581                 strcat(str, "X");
582 
583         return (str);
584 }
585 
586 static char *
587 qla24xx_fw_version_str(struct scsi_qla_host *vha, char *str)
588 {
589         struct qla_hw_data *ha = vha->hw;
590 
591         sprintf(str, "%d.%02d.%02d (%x)", ha->fw_major_version,
592             ha->fw_minor_version, ha->fw_subminor_version, ha->fw_attributes);
593         return str;
594 }
595 
596 void
597 qla2x00_sp_free_dma(void *vha, void *ptr)
598 {
599         srb_t *sp = (srb_t *)ptr;
600         struct scsi_cmnd *cmd = GET_CMD_SP(sp);
601         struct qla_hw_data *ha = sp->fcport->vha->hw;
602         void *ctx = GET_CMD_CTX_SP(sp);
603 
604         if (sp->flags & SRB_DMA_VALID) {
605                 scsi_dma_unmap(cmd);
606                 sp->flags &= ~SRB_DMA_VALID;
607         }
608 
609         if (sp->flags & SRB_CRC_PROT_DMA_VALID) {
610                 dma_unmap_sg(&ha->pdev->dev, scsi_prot_sglist(cmd),
611                     scsi_prot_sg_count(cmd), cmd->sc_data_direction);
612                 sp->flags &= ~SRB_CRC_PROT_DMA_VALID;
613         }
614 
615         if (sp->flags & SRB_CRC_CTX_DSD_VALID) {
616                 /* List assured to be having elements */
617                 qla2x00_clean_dsd_pool(ha, sp);
618                 sp->flags &= ~SRB_CRC_CTX_DSD_VALID;
619         }
620 
621         if (sp->flags & SRB_CRC_CTX_DMA_VALID) {
622                 dma_pool_free(ha->dl_dma_pool, ctx,
623                     ((struct crc_context *)ctx)->crc_ctx_dma);
624                 sp->flags &= ~SRB_CRC_CTX_DMA_VALID;
625         }
626 
627         if (sp->flags & SRB_FCP_CMND_DMA_VALID) {
628                 struct ct6_dsd *ctx1 = (struct ct6_dsd *)ctx;
629 
630                 dma_pool_free(ha->fcp_cmnd_dma_pool, ctx1->fcp_cmnd,
631                         ctx1->fcp_cmnd_dma);
632                 list_splice(&ctx1->dsd_list, &ha->gbl_dsd_list);
633                 ha->gbl_dsd_inuse -= ctx1->dsd_use_cnt;
634                 ha->gbl_dsd_avail += ctx1->dsd_use_cnt;
635                 mempool_free(ctx1, ha->ctx_mempool);
636                 ctx1 = NULL;
637         }
638 
639         CMD_SP(cmd) = NULL;
640         qla2x00_rel_sp(sp->fcport->vha, sp);
641 }
642 
643 static void
644 qla2x00_sp_compl(void *data, void *ptr, int res)
645 {
646         struct qla_hw_data *ha = (struct qla_hw_data *)data;
647         srb_t *sp = (srb_t *)ptr;
648         struct scsi_cmnd *cmd = GET_CMD_SP(sp);
649 
650         cmd->result = res;
651 
652         if (atomic_read(&sp->ref_count) == 0) {
653                 ql_dbg(ql_dbg_io, sp->fcport->vha, 0x3015,
654                     "SP reference-count to ZERO -- sp=%p cmd=%p.\n",
655                     sp, GET_CMD_SP(sp));
656                 if (ql2xextended_error_logging & ql_dbg_io)
657                         BUG();
658                 return;
659         }
660         if (!atomic_dec_and_test(&sp->ref_count))
661                 return;
662 
663         qla2x00_sp_free_dma(ha, sp);
664         cmd->scsi_done(cmd);
665 }
666 
667 /* If we are SP1 here, we need to still take and release the host_lock as SP1
668  * does not have the changes necessary to avoid taking host->host_lock.
669  */
670 static int
671 qla2xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
672 {
673         scsi_qla_host_t *vha = shost_priv(host);
674         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
675         struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
676         struct qla_hw_data *ha = vha->hw;
677         struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
678         srb_t *sp;
679         int rval;
680 
681         if (ha->flags.eeh_busy) {
682                 if (ha->flags.pci_channel_io_perm_failure) {
683                         ql_dbg(ql_dbg_aer, vha, 0x9010,
684                             "PCI Channel IO permanent failure, exiting "
685                             "cmd=%p.\n", cmd);
686                         cmd->result = DID_NO_CONNECT << 16;
687                 } else {
688                         ql_dbg(ql_dbg_aer, vha, 0x9011,
689                             "EEH_Busy, Requeuing the cmd=%p.\n", cmd);
690                         cmd->result = DID_REQUEUE << 16;
691                 }
692                 goto qc24_fail_command;
693         }
694 
695         rval = fc_remote_port_chkready(rport);
696         if (rval) {
697                 cmd->result = rval;
698                 ql_dbg(ql_dbg_io + ql_dbg_verbose, vha, 0x3003,
699                     "fc_remote_port_chkready failed for cmd=%p, rval=0x%x.\n",
700                     cmd, rval);
701                 goto qc24_fail_command;
702         }
703 
704         if (!vha->flags.difdix_supported &&
705                 scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) {
706                         ql_dbg(ql_dbg_io, vha, 0x3004,
707                             "DIF Cap not reg, fail DIF capable cmd's:%p.\n",
708                             cmd);
709                         cmd->result = DID_NO_CONNECT << 16;
710                         goto qc24_fail_command;
711         }
712 
713         if (!fcport) {
714                 cmd->result = DID_NO_CONNECT << 16;
715                 goto qc24_fail_command;
716         }
717 
718         if (atomic_read(&fcport->state) != FCS_ONLINE) {
719                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
720                         atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
721                         ql_dbg(ql_dbg_io, vha, 0x3005,
722                             "Returning DNC, fcport_state=%d loop_state=%d.\n",
723                             atomic_read(&fcport->state),
724                             atomic_read(&base_vha->loop_state));
725                         cmd->result = DID_NO_CONNECT << 16;
726                         goto qc24_fail_command;
727                 }
728                 goto qc24_target_busy;
729         }
730 
731         sp = qla2x00_get_sp(vha, fcport, GFP_ATOMIC);
732         if (!sp)
733                 goto qc24_host_busy;
734 
735         sp->u.scmd.cmd = cmd;
736         sp->type = SRB_SCSI_CMD;
737         atomic_set(&sp->ref_count, 1);
738         CMD_SP(cmd) = (void *)sp;
739         sp->free = qla2x00_sp_free_dma;
740         sp->done = qla2x00_sp_compl;
741 
742         rval = ha->isp_ops->start_scsi(sp);
743         if (rval != QLA_SUCCESS) {
744                 ql_dbg(ql_dbg_io + ql_dbg_verbose, vha, 0x3013,
745                     "Start scsi failed rval=%d for cmd=%p.\n", rval, cmd);
746                 goto qc24_host_busy_free_sp;
747         }
748 
749         return 0;
750 
751 qc24_host_busy_free_sp:
752         qla2x00_sp_free_dma(ha, sp);
753 
754 qc24_host_busy:
755         return SCSI_MLQUEUE_HOST_BUSY;
756 
757 qc24_target_busy:
758         return SCSI_MLQUEUE_TARGET_BUSY;
759 
760 qc24_fail_command:
761         cmd->scsi_done(cmd);
762 
763         return 0;
764 }
765 
766 /*
767  * qla2x00_eh_wait_on_command
768  *    Waits for the command to be returned by the Firmware for some
769  *    max time.
770  *
771  * Input:
772  *    cmd = Scsi Command to wait on.
773  *
774  * Return:
775  *    Not Found : 0
776  *    Found : 1
777  */
778 static int
779 qla2x00_eh_wait_on_command(struct scsi_cmnd *cmd)
780 {
781 #define ABORT_POLLING_PERIOD    1000
782 #define ABORT_WAIT_ITER         ((10 * 1000) / (ABORT_POLLING_PERIOD))
783         unsigned long wait_iter = ABORT_WAIT_ITER;
784         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
785         struct qla_hw_data *ha = vha->hw;
786         int ret = QLA_SUCCESS;
787 
788         if (unlikely(pci_channel_offline(ha->pdev)) || ha->flags.eeh_busy) {
789                 ql_dbg(ql_dbg_taskm, vha, 0x8005,
790                     "Return:eh_wait.\n");
791                 return ret;
792         }
793 
794         while (CMD_SP(cmd) && wait_iter--) {
795                 msleep(ABORT_POLLING_PERIOD);
796         }
797         if (CMD_SP(cmd))
798                 ret = QLA_FUNCTION_FAILED;
799 
800         return ret;
801 }
802 
803 /*
804  * qla2x00_wait_for_hba_online
805  *    Wait till the HBA is online after going through
806  *    <= MAX_RETRIES_OF_ISP_ABORT  or
807  *    finally HBA is disabled ie marked offline
808  *
809  * Input:
810  *     ha - pointer to host adapter structure
811  *
812  * Note:
813  *    Does context switching-Release SPIN_LOCK
814  *    (if any) before calling this routine.
815  *
816  * Return:
817  *    Success (Adapter is online) : 0
818  *    Failed  (Adapter is offline/disabled) : 1
819  */
820 int
821 qla2x00_wait_for_hba_online(scsi_qla_host_t *vha)
822 {
823         int             return_status;
824         unsigned long   wait_online;
825         struct qla_hw_data *ha = vha->hw;
826         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
827 
828         wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
829         while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
830             test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
831             test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
832             ha->dpc_active) && time_before(jiffies, wait_online)) {
833 
834                 msleep(1000);
835         }
836         if (base_vha->flags.online)
837                 return_status = QLA_SUCCESS;
838         else
839                 return_status = QLA_FUNCTION_FAILED;
840 
841         return (return_status);
842 }
843 
844 /*
845  * qla2x00_wait_for_reset_ready
846  *    Wait till the HBA is online after going through
847  *    <= MAX_RETRIES_OF_ISP_ABORT  or
848  *    finally HBA is disabled ie marked offline or flash
849  *    operations are in progress.
850  *
851  * Input:
852  *     ha - pointer to host adapter structure
853  *
854  * Note:
855  *    Does context switching-Release SPIN_LOCK
856  *    (if any) before calling this routine.
857  *
858  * Return:
859  *    Success (Adapter is online/no flash ops) : 0
860  *    Failed  (Adapter is offline/disabled/flash ops in progress) : 1
861  */
862 static int
863 qla2x00_wait_for_reset_ready(scsi_qla_host_t *vha)
864 {
865         int             return_status;
866         unsigned long   wait_online;
867         struct qla_hw_data *ha = vha->hw;
868         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
869 
870         wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
871         while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
872             test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
873             test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
874             ha->optrom_state != QLA_SWAITING ||
875             ha->dpc_active) && time_before(jiffies, wait_online))
876                 msleep(1000);
877 
878         if (base_vha->flags.online &&  ha->optrom_state == QLA_SWAITING)
879                 return_status = QLA_SUCCESS;
880         else
881                 return_status = QLA_FUNCTION_FAILED;
882 
883         ql_dbg(ql_dbg_taskm, vha, 0x8019,
884             "%s return status=%d.\n", __func__, return_status);
885 
886         return return_status;
887 }
888 
889 int
890 qla2x00_wait_for_chip_reset(scsi_qla_host_t *vha)
891 {
892         int             return_status;
893         unsigned long   wait_reset;
894         struct qla_hw_data *ha = vha->hw;
895         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
896 
897         wait_reset = jiffies + (MAX_LOOP_TIMEOUT * HZ);
898         while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
899             test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
900             test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
901             ha->dpc_active) && time_before(jiffies, wait_reset)) {
902 
903                 msleep(1000);
904 
905                 if (!test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags) &&
906                     ha->flags.chip_reset_done)
907                         break;
908         }
909         if (ha->flags.chip_reset_done)
910                 return_status = QLA_SUCCESS;
911         else
912                 return_status = QLA_FUNCTION_FAILED;
913 
914         return return_status;
915 }
916 
917 static void
918 sp_get(struct srb *sp)
919 {
920         atomic_inc(&sp->ref_count);
921 }
922 
923 /**************************************************************************
924 * qla2xxx_eh_abort
925 *
926 * Description:
927 *    The abort function will abort the specified command.
928 *
929 * Input:
930 *    cmd = Linux SCSI command packet to be aborted.
931 *
932 * Returns:
933 *    Either SUCCESS or FAILED.
934 *
935 * Note:
936 *    Only return FAILED if command not returned by firmware.
937 **************************************************************************/
938 static int
939 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
940 {
941         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
942         srb_t *sp;
943         int ret;
944         unsigned int id, lun;
945         unsigned long flags;
946         int wait = 0;
947         struct qla_hw_data *ha = vha->hw;
948 
949         if (!CMD_SP(cmd))
950                 return SUCCESS;
951 
952         ret = fc_block_scsi_eh(cmd);
953         if (ret != 0)
954                 return ret;
955         ret = SUCCESS;
956 
957         id = cmd->device->id;
958         lun = cmd->device->lun;
959 
960         spin_lock_irqsave(&ha->hardware_lock, flags);
961         sp = (srb_t *) CMD_SP(cmd);
962         if (!sp) {
963                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
964                 return SUCCESS;
965         }
966 
967         ql_dbg(ql_dbg_taskm, vha, 0x8002,
968             "Aborting from RISC nexus=%ld:%d:%d sp=%p cmd=%p\n",
969             vha->host_no, id, lun, sp, cmd);
970 
971         /* Get a reference to the sp and drop the lock.*/
972         sp_get(sp);
973 
974         spin_unlock_irqrestore(&ha->hardware_lock, flags);
975         if (ha->isp_ops->abort_command(sp)) {
976                 ret = FAILED;
977                 ql_dbg(ql_dbg_taskm, vha, 0x8003,
978                     "Abort command mbx failed cmd=%p.\n", cmd);
979         } else {
980                 ql_dbg(ql_dbg_taskm, vha, 0x8004,
981                     "Abort command mbx success cmd=%p.\n", cmd);
982                 wait = 1;
983         }
984 
985         spin_lock_irqsave(&ha->hardware_lock, flags);
986         sp->done(ha, sp, 0);
987         spin_unlock_irqrestore(&ha->hardware_lock, flags);
988 
989         /* Did the command return during mailbox execution? */
990         if (ret == FAILED && !CMD_SP(cmd))
991                 ret = SUCCESS;
992 
993         /* Wait for the command to be returned. */
994         if (wait) {
995                 if (qla2x00_eh_wait_on_command(cmd) != QLA_SUCCESS) {
996                         ql_log(ql_log_warn, vha, 0x8006,
997                             "Abort handler timed out cmd=%p.\n", cmd);
998                         ret = FAILED;
999                 }
1000         }
1001 
1002         ql_log(ql_log_info, vha, 0x801c,
1003             "Abort command issued nexus=%ld:%d:%d --  %d %x.\n",
1004             vha->host_no, id, lun, wait, ret);
1005 
1006         return ret;
1007 }
1008 
1009 int
1010 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *vha, unsigned int t,
1011         unsigned int l, enum nexus_wait_type type)
1012 {
1013         int cnt, match, status;
1014         unsigned long flags;
1015         struct qla_hw_data *ha = vha->hw;
1016         struct req_que *req;
1017         srb_t *sp;
1018         struct scsi_cmnd *cmd;
1019 
1020         status = QLA_SUCCESS;
1021 
1022         spin_lock_irqsave(&ha->hardware_lock, flags);
1023         req = vha->req;
1024         for (cnt = 1; status == QLA_SUCCESS &&
1025                 cnt < req->num_outstanding_cmds; cnt++) {
1026                 sp = req->outstanding_cmds[cnt];
1027                 if (!sp)
1028                         continue;
1029                 if (sp->type != SRB_SCSI_CMD)
1030                         continue;
1031                 if (vha->vp_idx != sp->fcport->vha->vp_idx)
1032                         continue;
1033                 match = 0;
1034                 cmd = GET_CMD_SP(sp);
1035                 switch (type) {
1036                 case WAIT_HOST:
1037                         match = 1;
1038                         break;
1039                 case WAIT_TARGET:
1040                         match = cmd->device->id == t;
1041                         break;
1042                 case WAIT_LUN:
1043                         match = (cmd->device->id == t &&
1044                                 cmd->device->lun == l);
1045                         break;
1046                 }
1047                 if (!match)
1048                         continue;
1049 
1050                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1051                 status = qla2x00_eh_wait_on_command(cmd);
1052                 spin_lock_irqsave(&ha->hardware_lock, flags);
1053         }
1054         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1055 
1056         return status;
1057 }
1058 
1059 static char *reset_errors[] = {
1060         "HBA not online",
1061         "HBA not ready",
1062         "Task management failed",
1063         "Waiting for command completions",
1064 };
1065 
1066 static int
1067 __qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type,
1068     struct scsi_cmnd *cmd, int (*do_reset)(struct fc_port *, unsigned int, int))
1069 {
1070         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1071         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
1072         int err;
1073 
1074         if (!fcport) {
1075                 return FAILED;
1076         }
1077 
1078         err = fc_block_scsi_eh(cmd);
1079         if (err != 0)
1080                 return err;
1081 
1082         ql_log(ql_log_info, vha, 0x8009,
1083             "%s RESET ISSUED nexus=%ld:%d:%d cmd=%p.\n", name, vha->host_no,
1084             cmd->device->id, cmd->device->lun, cmd);
1085 
1086         err = 0;
1087         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
1088                 ql_log(ql_log_warn, vha, 0x800a,
1089                     "Wait for hba online failed for cmd=%p.\n", cmd);
1090                 goto eh_reset_failed;
1091         }
1092         err = 2;
1093         if (do_reset(fcport, cmd->device->lun, cmd->request->cpu + 1)
1094                 != QLA_SUCCESS) {
1095                 ql_log(ql_log_warn, vha, 0x800c,
1096                     "do_reset failed for cmd=%p.\n", cmd);
1097                 goto eh_reset_failed;
1098         }
1099         err = 3;
1100         if (qla2x00_eh_wait_for_pending_commands(vha, cmd->device->id,
1101             cmd->device->lun, type) != QLA_SUCCESS) {
1102                 ql_log(ql_log_warn, vha, 0x800d,
1103                     "wait for pending cmds failed for cmd=%p.\n", cmd);
1104                 goto eh_reset_failed;
1105         }
1106 
1107         ql_log(ql_log_info, vha, 0x800e,
1108             "%s RESET SUCCEEDED nexus:%ld:%d:%d cmd=%p.\n", name,
1109             vha->host_no, cmd->device->id, cmd->device->lun, cmd);
1110 
1111         return SUCCESS;
1112 
1113 eh_reset_failed:
1114         ql_log(ql_log_info, vha, 0x800f,
1115             "%s RESET FAILED: %s nexus=%ld:%d:%d cmd=%p.\n", name,
1116             reset_errors[err], vha->host_no, cmd->device->id, cmd->device->lun,
1117             cmd);
1118         return FAILED;
1119 }
1120 
1121 static int
1122 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
1123 {
1124         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1125         struct qla_hw_data *ha = vha->hw;
1126 
1127         return __qla2xxx_eh_generic_reset("DEVICE", WAIT_LUN, cmd,
1128             ha->isp_ops->lun_reset);
1129 }
1130 
1131 static int
1132 qla2xxx_eh_target_reset(struct scsi_cmnd *cmd)
1133 {
1134         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1135         struct qla_hw_data *ha = vha->hw;
1136 
1137         return __qla2xxx_eh_generic_reset("TARGET", WAIT_TARGET, cmd,
1138             ha->isp_ops->target_reset);
1139 }
1140 
1141 /**************************************************************************
1142 * qla2xxx_eh_bus_reset
1143 *
1144 * Description:
1145 *    The bus reset function will reset the bus and abort any executing
1146 *    commands.
1147 *
1148 * Input:
1149 *    cmd = Linux SCSI command packet of the command that cause the
1150 *          bus reset.
1151 *
1152 * Returns:
1153 *    SUCCESS/FAILURE (defined as macro in scsi.h).
1154 *
1155 **************************************************************************/
1156 static int
1157 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
1158 {
1159         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1160         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
1161         int ret = FAILED;
1162         unsigned int id, lun;
1163 
1164         id = cmd->device->id;
1165         lun = cmd->device->lun;
1166 
1167         if (!fcport) {
1168                 return ret;
1169         }
1170 
1171         ret = fc_block_scsi_eh(cmd);
1172         if (ret != 0)
1173                 return ret;
1174         ret = FAILED;
1175 
1176         ql_log(ql_log_info, vha, 0x8012,
1177             "BUS RESET ISSUED nexus=%ld:%d:%d.\n", vha->host_no, id, lun);
1178 
1179         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
1180                 ql_log(ql_log_fatal, vha, 0x8013,
1181                     "Wait for hba online failed board disabled.\n");
1182                 goto eh_bus_reset_done;
1183         }
1184 
1185         if (qla2x00_loop_reset(vha) == QLA_SUCCESS)
1186                 ret = SUCCESS;
1187 
1188         if (ret == FAILED)
1189                 goto eh_bus_reset_done;
1190 
1191         /* Flush outstanding commands. */
1192         if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST) !=
1193             QLA_SUCCESS) {
1194                 ql_log(ql_log_warn, vha, 0x8014,
1195                     "Wait for pending commands failed.\n");
1196                 ret = FAILED;
1197         }
1198 
1199 eh_bus_reset_done:
1200         ql_log(ql_log_warn, vha, 0x802b,
1201             "BUS RESET %s nexus=%ld:%d:%d.\n",
1202             (ret == FAILED) ? "FAILED" : "SUCCEEDED", vha->host_no, id, lun);
1203 
1204         return ret;
1205 }
1206 
1207 /**************************************************************************
1208 * qla2xxx_eh_host_reset
1209 *
1210 * Description:
1211 *    The reset function will reset the Adapter.
1212 *
1213 * Input:
1214 *      cmd = Linux SCSI command packet of the command that cause the
1215 *            adapter reset.
1216 *
1217 * Returns:
1218 *      Either SUCCESS or FAILED.
1219 *
1220 * Note:
1221 **************************************************************************/
1222 static int
1223 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
1224 {
1225         scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1226         struct qla_hw_data *ha = vha->hw;
1227         int ret = FAILED;
1228         unsigned int id, lun;
1229         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
1230 
1231         id = cmd->device->id;
1232         lun = cmd->device->lun;
1233 
1234         ql_log(ql_log_info, vha, 0x8018,
1235             "ADAPTER RESET ISSUED nexus=%ld:%d:%d.\n", vha->host_no, id, lun);
1236 
1237         if (qla2x00_wait_for_reset_ready(vha) != QLA_SUCCESS)
1238                 goto eh_host_reset_lock;
1239 
1240         if (vha != base_vha) {
1241                 if (qla2x00_vp_abort_isp(vha))
1242                         goto eh_host_reset_lock;
1243         } else {
1244                 if (IS_P3P_TYPE(vha->hw)) {
1245                         if (!qla82xx_fcoe_ctx_reset(vha)) {
1246                                 /* Ctx reset success */
1247                                 ret = SUCCESS;
1248                                 goto eh_host_reset_lock;
1249                         }
1250                         /* fall thru if ctx reset failed */
1251                 }
1252                 if (ha->wq)
1253                         flush_workqueue(ha->wq);
1254 
1255                 set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1256                 if (ha->isp_ops->abort_isp(base_vha)) {
1257                         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1258                         /* failed. schedule dpc to try */
1259                         set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags);
1260 
1261                         if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
1262                                 ql_log(ql_log_warn, vha, 0x802a,
1263                                     "wait for hba online failed.\n");
1264                                 goto eh_host_reset_lock;
1265                         }
1266                 }
1267                 clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1268         }
1269 
1270         /* Waiting for command to be returned to OS.*/
1271         if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST) ==
1272                 QLA_SUCCESS)
1273                 ret = SUCCESS;
1274 
1275 eh_host_reset_lock:
1276         ql_log(ql_log_info, vha, 0x8017,
1277             "ADAPTER RESET %s nexus=%ld:%d:%d.\n",
1278             (ret == FAILED) ? "FAILED" : "SUCCEEDED", vha->host_no, id, lun);
1279 
1280         return ret;
1281 }
1282 
1283 /*
1284 * qla2x00_loop_reset
1285 *      Issue loop reset.
1286 *
1287 * Input:
1288 *      ha = adapter block pointer.
1289 *
1290 * Returns:
1291 *      0 = success
1292 */
1293 int
1294 qla2x00_loop_reset(scsi_qla_host_t *vha)
1295 {
1296         int ret;
1297         struct fc_port *fcport;
1298         struct qla_hw_data *ha = vha->hw;
1299 
1300         if (IS_QLAFX00(ha)) {
1301                 return qlafx00_loop_reset(vha);
1302         }
1303 
1304         if (ql2xtargetreset == 1 && ha->flags.enable_target_reset) {
1305                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
1306                         if (fcport->port_type != FCT_TARGET)
1307                                 continue;
1308 
1309                         ret = ha->isp_ops->target_reset(fcport, 0, 0);
1310                         if (ret != QLA_SUCCESS) {
1311                                 ql_dbg(ql_dbg_taskm, vha, 0x802c,
1312                                     "Bus Reset failed: Reset=%d "
1313                                     "d_id=%x.\n", ret, fcport->d_id.b24);
1314                         }
1315                 }
1316         }
1317 
1318 
1319         if (ha->flags.enable_lip_full_login && !IS_CNA_CAPABLE(ha)) {
1320                 atomic_set(&vha->loop_state, LOOP_DOWN);
1321                 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1322                 qla2x00_mark_all_devices_lost(vha, 0);
1323                 ret = qla2x00_full_login_lip(vha);
1324                 if (ret != QLA_SUCCESS) {
1325                         ql_dbg(ql_dbg_taskm, vha, 0x802d,
1326                             "full_login_lip=%d.\n", ret);
1327                 }
1328         }
1329 
1330         if (ha->flags.enable_lip_reset) {
1331                 ret = qla2x00_lip_reset(vha);
1332                 if (ret != QLA_SUCCESS)
1333                         ql_dbg(ql_dbg_taskm, vha, 0x802e,
1334                             "lip_reset failed (%d).\n", ret);
1335         }
1336 
1337         /* Issue marker command only when we are going to start the I/O */
1338         vha->marker_needed = 1;
1339 
1340         return QLA_SUCCESS;
1341 }
1342 
1343 void
1344 qla2x00_abort_all_cmds(scsi_qla_host_t *vha, int res)
1345 {
1346         int que, cnt;
1347         unsigned long flags;
1348         srb_t *sp;
1349         struct qla_hw_data *ha = vha->hw;
1350         struct req_que *req;
1351 
1352         spin_lock_irqsave(&ha->hardware_lock, flags);
1353         for (que = 0; que < ha->max_req_queues; que++) {
1354                 req = ha->req_q_map[que];
1355                 if (!req)
1356                         continue;
1357                 if (!req->outstanding_cmds)
1358                         continue;
1359                 for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++) {
1360                         sp = req->outstanding_cmds[cnt];
1361                         if (sp) {
1362                                 req->outstanding_cmds[cnt] = NULL;
1363                                 sp->done(vha, sp, res);
1364                         }
1365                 }
1366         }
1367         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1368 }
1369 
1370 static int
1371 qla2xxx_slave_alloc(struct scsi_device *sdev)
1372 {
1373         struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1374 
1375         if (!rport || fc_remote_port_chkready(rport))
1376                 return -ENXIO;
1377 
1378         sdev->hostdata = *(fc_port_t **)rport->dd_data;
1379 
1380         return 0;
1381 }
1382 
1383 static int
1384 qla2xxx_slave_configure(struct scsi_device *sdev)
1385 {
1386         scsi_qla_host_t *vha = shost_priv(sdev->host);
1387         struct req_que *req = vha->req;
1388 
1389         if (IS_T10_PI_CAPABLE(vha->hw))
1390                 blk_queue_update_dma_alignment(sdev->request_queue, 0x7);
1391 
1392         if (sdev->tagged_supported)
1393                 scsi_activate_tcq(sdev, req->max_q_depth);
1394         else
1395                 scsi_deactivate_tcq(sdev, req->max_q_depth);
1396         return 0;
1397 }
1398 
1399 static void
1400 qla2xxx_slave_destroy(struct scsi_device *sdev)
1401 {
1402         sdev->hostdata = NULL;
1403 }
1404 
1405 static void qla2x00_handle_queue_full(struct scsi_device *sdev, int qdepth)
1406 {
1407         fc_port_t *fcport = (struct fc_port *) sdev->hostdata;
1408 
1409         if (!scsi_track_queue_full(sdev, qdepth))
1410                 return;
1411 
1412         ql_dbg(ql_dbg_io, fcport->vha, 0x3029,
1413             "Queue depth adjusted-down to %d for nexus=%ld:%d:%d.\n",
1414             sdev->queue_depth, fcport->vha->host_no, sdev->id, sdev->lun);
1415 }
1416 
1417 static void qla2x00_adjust_sdev_qdepth_up(struct scsi_device *sdev, int qdepth)
1418 {
1419         fc_port_t *fcport = sdev->hostdata;
1420         struct scsi_qla_host *vha = fcport->vha;
1421         struct req_que *req = NULL;
1422 
1423         req = vha->req;
1424         if (!req)
1425                 return;
1426 
1427         if (req->max_q_depth <= sdev->queue_depth || req->max_q_depth < qdepth)
1428                 return;
1429 
1430         if (sdev->ordered_tags)
1431                 scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, qdepth);
1432         else
1433                 scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, qdepth);
1434 
1435         ql_dbg(ql_dbg_io, vha, 0x302a,
1436             "Queue depth adjusted-up to %d for nexus=%ld:%d:%d.\n",
1437             sdev->queue_depth, fcport->vha->host_no, sdev->id, sdev->lun);
1438 }
1439 
1440 static int
1441 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
1442 {
1443         switch (reason) {
1444         case SCSI_QDEPTH_DEFAULT:
1445                 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1446                 break;
1447         case SCSI_QDEPTH_QFULL:
1448                 qla2x00_handle_queue_full(sdev, qdepth);
1449                 break;
1450         case SCSI_QDEPTH_RAMP_UP:
1451                 qla2x00_adjust_sdev_qdepth_up(sdev, qdepth);
1452                 break;
1453         default:
1454                 return -EOPNOTSUPP;
1455         }
1456 
1457         return sdev->queue_depth;
1458 }
1459 
1460 static int
1461 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1462 {
1463         if (sdev->tagged_supported) {
1464                 scsi_set_tag_type(sdev, tag_type);
1465                 if (tag_type)
1466                         scsi_activate_tcq(sdev, sdev->queue_depth);
1467                 else
1468                         scsi_deactivate_tcq(sdev, sdev->queue_depth);
1469         } else
1470                 tag_type = 0;
1471 
1472         return tag_type;
1473 }
1474 
1475 /**
1476  * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1477  * @ha: HA context
1478  *
1479  * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1480  * supported addressing method.
1481  */
1482 static void
1483 qla2x00_config_dma_addressing(struct qla_hw_data *ha)
1484 {
1485         /* Assume a 32bit DMA mask. */
1486         ha->flags.enable_64bit_addressing = 0;
1487 
1488         if (!dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(64))) {
1489                 /* Any upper-dword bits set? */
1490                 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1491                     !pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) {
1492                         /* Ok, a 64bit DMA mask is applicable. */
1493                         ha->flags.enable_64bit_addressing = 1;
1494                         ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1495                         ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1496                         return;
1497                 }
1498         }
1499 
1500         dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(32));
1501         pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(32));
1502 }
1503 
1504 static void
1505 qla2x00_enable_intrs(struct qla_hw_data *ha)
1506 {
1507         unsigned long flags = 0;
1508         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1509 
1510         spin_lock_irqsave(&ha->hardware_lock, flags);
1511         ha->interrupts_on = 1;
1512         /* enable risc and host interrupts */
1513         WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1514         RD_REG_WORD(&reg->ictrl);
1515         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1516 
1517 }
1518 
1519 static void
1520 qla2x00_disable_intrs(struct qla_hw_data *ha)
1521 {
1522         unsigned long flags = 0;
1523         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1524 
1525         spin_lock_irqsave(&ha->hardware_lock, flags);
1526         ha->interrupts_on = 0;
1527         /* disable risc and host interrupts */
1528         WRT_REG_WORD(&reg->ictrl, 0);
1529         RD_REG_WORD(&reg->ictrl);
1530         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1531 }
1532 
1533 static void
1534 qla24xx_enable_intrs(struct qla_hw_data *ha)
1535 {
1536         unsigned long flags = 0;
1537         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1538 
1539         spin_lock_irqsave(&ha->hardware_lock, flags);
1540         ha->interrupts_on = 1;
1541         WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1542         RD_REG_DWORD(&reg->ictrl);
1543         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1544 }
1545 
1546 static void
1547 qla24xx_disable_intrs(struct qla_hw_data *ha)
1548 {
1549         unsigned long flags = 0;
1550         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1551 
1552         if (IS_NOPOLLING_TYPE(ha))
1553                 return;
1554         spin_lock_irqsave(&ha->hardware_lock, flags);
1555         ha->interrupts_on = 0;
1556         WRT_REG_DWORD(&reg->ictrl, 0);
1557         RD_REG_DWORD(&reg->ictrl);
1558         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1559 }
1560 
1561 static int
1562 qla2x00_iospace_config(struct qla_hw_data *ha)
1563 {
1564         resource_size_t pio;
1565         uint16_t msix;
1566         int cpus;
1567 
1568         if (pci_request_selected_regions(ha->pdev, ha->bars,
1569             QLA2XXX_DRIVER_NAME)) {
1570                 ql_log_pci(ql_log_fatal, ha->pdev, 0x0011,
1571                     "Failed to reserve PIO/MMIO regions (%s), aborting.\n",
1572                     pci_name(ha->pdev));
1573                 goto iospace_error_exit;
1574         }
1575         if (!(ha->bars & 1))
1576                 goto skip_pio;
1577 
1578         /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1579         pio = pci_resource_start(ha->pdev, 0);
1580         if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
1581                 if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
1582                         ql_log_pci(ql_log_warn, ha->pdev, 0x0012,
1583                             "Invalid pci I/O region size (%s).\n",
1584                             pci_name(ha->pdev));
1585                         pio = 0;
1586                 }
1587         } else {
1588                 ql_log_pci(ql_log_warn, ha->pdev, 0x0013,
1589                     "Region #0 no a PIO resource (%s).\n",
1590                     pci_name(ha->pdev));
1591                 pio = 0;
1592         }
1593         ha->pio_address = pio;
1594         ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0014,
1595             "PIO address=%llu.\n",
1596             (unsigned long long)ha->pio_address);
1597 
1598 skip_pio:
1599         /* Use MMIO operations for all accesses. */
1600         if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
1601                 ql_log_pci(ql_log_fatal, ha->pdev, 0x0015,
1602                     "Region #1 not an MMIO resource (%s), aborting.\n",
1603                     pci_name(ha->pdev));
1604                 goto iospace_error_exit;
1605         }
1606         if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
1607                 ql_log_pci(ql_log_fatal, ha->pdev, 0x0016,
1608                     "Invalid PCI mem region size (%s), aborting.\n",
1609                     pci_name(ha->pdev));
1610                 goto iospace_error_exit;
1611         }
1612 
1613         ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
1614         if (!ha->iobase) {
1615                 ql_log_pci(ql_log_fatal, ha->pdev, 0x0017,
1616                     "Cannot remap MMIO (%s), aborting.\n",
1617                     pci_name(ha->pdev));
1618                 goto iospace_error_exit;
1619         }
1620 
1621         /* Determine queue resources */
1622         ha->max_req_queues = ha->max_rsp_queues = 1;
1623         if ((ql2xmaxqueues <= 1 && !ql2xmultique_tag) ||
1624                 (ql2xmaxqueues > 1 && ql2xmultique_tag) ||
1625                 (!IS_QLA25XX(ha) && !IS_QLA81XX(ha)))
1626                 goto mqiobase_exit;
1627 
1628         ha->mqiobase = ioremap(pci_resource_start(ha->pdev, 3),
1629                         pci_resource_len(ha->pdev, 3));
1630         if (ha->mqiobase) {
1631                 ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0018,
1632                     "MQIO Base=%p.\n", ha->mqiobase);
1633                 /* Read MSIX vector size of the board */
1634                 pci_read_config_word(ha->pdev, QLA_PCI_MSIX_CONTROL, &msix);
1635                 ha->msix_count = msix;
1636                 /* Max queues are bounded by available msix vectors */
1637                 /* queue 0 uses two msix vectors */
1638                 if (ql2xmultique_tag) {
1639                         cpus = num_online_cpus();
1640                         ha->max_rsp_queues = (ha->msix_count - 1 > cpus) ?
1641                                 (cpus + 1) : (ha->msix_count - 1);
1642                         ha->max_req_queues = 2;
1643                 } else if (ql2xmaxqueues > 1) {
1644                         ha->max_req_queues = ql2xmaxqueues > QLA_MQ_SIZE ?
1645                             QLA_MQ_SIZE : ql2xmaxqueues;
1646                         ql_dbg_pci(ql_dbg_multiq, ha->pdev, 0xc008,
1647                             "QoS mode set, max no of request queues:%d.\n",
1648                             ha->max_req_queues);
1649                         ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0019,
1650                             "QoS mode set, max no of request queues:%d.\n",
1651                             ha->max_req_queues);
1652                 }
1653                 ql_log_pci(ql_log_info, ha->pdev, 0x001a,
1654                     "MSI-X vector count: %d.\n", msix);
1655         } else
1656                 ql_log_pci(ql_log_info, ha->pdev, 0x001b,
1657                     "BAR 3 not enabled.\n");
1658 
1659 mqiobase_exit:
1660         ha->msix_count = ha->max_rsp_queues + 1;
1661         ql_dbg_pci(ql_dbg_init, ha->pdev, 0x001c,
1662             "MSIX Count:%d.\n", ha->msix_count);
1663         return (0);
1664 
1665 iospace_error_exit:
1666         return (-ENOMEM);
1667 }
1668 
1669 
1670 static int
1671 qla83xx_iospace_config(struct qla_hw_data *ha)
1672 {
1673         uint16_t msix;
1674         int cpus;
1675 
1676         if (pci_request_selected_regions(ha->pdev, ha->bars,
1677             QLA2XXX_DRIVER_NAME)) {
1678                 ql_log_pci(ql_log_fatal, ha->pdev, 0x0117,
1679                     "Failed to reserve PIO/MMIO regions (%s), aborting.\n",
1680                     pci_name(ha->pdev));
1681 
1682                 goto iospace_error_exit;
1683         }
1684 
1685         /* Use MMIO operations for all accesses. */
1686         if (!(pci_resource_flags(ha->pdev, 0) & IORESOURCE_MEM)) {
1687                 ql_log_pci(ql_log_warn, ha->pdev, 0x0118,
1688                     "Invalid pci I/O region size (%s).\n",
1689                     pci_name(ha->pdev));
1690                 goto iospace_error_exit;
1691         }
1692         if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
1693                 ql_log_pci(ql_log_warn, ha->pdev, 0x0119,
1694                     "Invalid PCI mem region size (%s), aborting\n",
1695                         pci_name(ha->pdev));
1696                 goto iospace_error_exit;
1697         }
1698 
1699         ha->iobase = ioremap(pci_resource_start(ha->pdev, 0), MIN_IOBASE_LEN);
1700         if (!ha->iobase) {
1701                 ql_log_pci(ql_log_fatal, ha->pdev, 0x011a,
1702                     "Cannot remap MMIO (%s), aborting.\n",
1703                     pci_name(ha->pdev));
1704                 goto iospace_error_exit;
1705         }
1706 
1707         /* 64bit PCI BAR - BAR2 will correspoond to region 4 */
1708         /* 83XX 26XX always use MQ type access for queues
1709          * - mbar 2, a.k.a region 4 */
1710         ha->max_req_queues = ha->max_rsp_queues = 1;
1711         ha->mqiobase = ioremap(pci_resource_start(ha->pdev, 4),
1712                         pci_resource_len(ha->pdev, 4));
1713 
1714         if (!ha->mqiobase) {
1715                 ql_log_pci(ql_log_fatal, ha->pdev, 0x011d,
1716                     "BAR2/region4 not enabled\n");
1717                 goto mqiobase_exit;
1718         }
1719 
1720         ha->msixbase = ioremap(pci_resource_start(ha->pdev, 2),
1721                         pci_resource_len(ha->pdev, 2));
1722         if (ha->msixbase) {
1723                 /* Read MSIX vector size of the board */
1724                 pci_read_config_word(ha->pdev,
1725                     QLA_83XX_PCI_MSIX_CONTROL, &msix);
1726                 ha->msix_count = msix;
1727                 /* Max queues are bounded by available msix vectors */
1728                 /* queue 0 uses two msix vectors */
1729                 if (ql2xmultique_tag) {
1730                         cpus = num_online_cpus();
1731                         ha->max_rsp_queues = (ha->msix_count - 1 > cpus) ?
1732                                 (cpus + 1) : (ha->msix_count - 1);
1733                         ha->max_req_queues = 2;
1734                 } else if (ql2xmaxqueues > 1) {
1735                         ha->max_req_queues = ql2xmaxqueues > QLA_MQ_SIZE ?
1736                                                 QLA_MQ_SIZE : ql2xmaxqueues;
1737                         ql_dbg_pci(ql_dbg_multiq, ha->pdev, 0xc00c,
1738                             "QoS mode set, max no of request queues:%d.\n",
1739                             ha->max_req_queues);
1740                         ql_dbg_pci(ql_dbg_init, ha->pdev, 0x011b,
1741                             "QoS mode set, max no of request queues:%d.\n",
1742                             ha->max_req_queues);
1743                 }
1744                 ql_log_pci(ql_log_info, ha->pdev, 0x011c,
1745                     "MSI-X vector count: %d.\n", msix);
1746         } else
1747                 ql_log_pci(ql_log_info, ha->pdev, 0x011e,
1748                     "BAR 1 not enabled.\n");
1749 
1750 mqiobase_exit:
1751         ha->msix_count = ha->max_rsp_queues + 1;
1752 
1753         qlt_83xx_iospace_config(ha);
1754 
1755         ql_dbg_pci(ql_dbg_init, ha->pdev, 0x011f,
1756             "MSIX Count:%d.\n", ha->msix_count);
1757         return 0;
1758 
1759 iospace_error_exit:
1760         return -ENOMEM;
1761 }
1762 
1763 static struct isp_operations qla2100_isp_ops = {
1764         .pci_config             = qla2100_pci_config,
1765         .reset_chip             = qla2x00_reset_chip,
1766         .chip_diag              = qla2x00_chip_diag,
1767         .config_rings           = qla2x00_config_rings,
1768         .reset_adapter          = qla2x00_reset_adapter,
1769         .nvram_config           = qla2x00_nvram_config,
1770         .update_fw_options      = qla2x00_update_fw_options,
1771         .load_risc              = qla2x00_load_risc,
1772         .pci_info_str           = qla2x00_pci_info_str,
1773         .fw_version_str         = qla2x00_fw_version_str,
1774         .intr_handler           = qla2100_intr_handler,
1775         .enable_intrs           = qla2x00_enable_intrs,
1776         .disable_intrs          = qla2x00_disable_intrs,
1777         .abort_command          = qla2x00_abort_command,
1778         .target_reset           = qla2x00_abort_target,
1779         .lun_reset              = qla2x00_lun_reset,
1780         .fabric_login           = qla2x00_login_fabric,
1781         .fabric_logout          = qla2x00_fabric_logout,
1782         .calc_req_entries       = qla2x00_calc_iocbs_32,
1783         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1784         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1785         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1786         .read_nvram             = qla2x00_read_nvram_data,
1787         .write_nvram            = qla2x00_write_nvram_data,
1788         .fw_dump                = qla2100_fw_dump,
1789         .beacon_on              = NULL,
1790         .beacon_off             = NULL,
1791         .beacon_blink           = NULL,
1792         .read_optrom            = qla2x00_read_optrom_data,
1793         .write_optrom           = qla2x00_write_optrom_data,
1794         .get_flash_version      = qla2x00_get_flash_version,
1795         .start_scsi             = qla2x00_start_scsi,
1796         .abort_isp              = qla2x00_abort_isp,
1797         .iospace_config         = qla2x00_iospace_config,
1798         .initialize_adapter     = qla2x00_initialize_adapter,
1799 };
1800 
1801 static struct isp_operations qla2300_isp_ops = {
1802         .pci_config             = qla2300_pci_config,
1803         .reset_chip             = qla2x00_reset_chip,
1804         .chip_diag              = qla2x00_chip_diag,
1805         .config_rings           = qla2x00_config_rings,
1806         .reset_adapter          = qla2x00_reset_adapter,
1807         .nvram_config           = qla2x00_nvram_config,
1808         .update_fw_options      = qla2x00_update_fw_options,
1809         .load_risc              = qla2x00_load_risc,
1810         .pci_info_str           = qla2x00_pci_info_str,
1811         .fw_version_str         = qla2x00_fw_version_str,
1812         .intr_handler           = qla2300_intr_handler,
1813         .enable_intrs           = qla2x00_enable_intrs,
1814         .disable_intrs          = qla2x00_disable_intrs,
1815         .abort_command          = qla2x00_abort_command,
1816         .target_reset           = qla2x00_abort_target,
1817         .lun_reset              = qla2x00_lun_reset,
1818         .fabric_login           = qla2x00_login_fabric,
1819         .fabric_logout          = qla2x00_fabric_logout,
1820         .calc_req_entries       = qla2x00_calc_iocbs_32,
1821         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1822         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1823         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1824         .read_nvram             = qla2x00_read_nvram_data,
1825         .write_nvram            = qla2x00_write_nvram_data,
1826         .fw_dump                = qla2300_fw_dump,
1827         .beacon_on              = qla2x00_beacon_on,
1828         .beacon_off             = qla2x00_beacon_off,
1829         .beacon_blink           = qla2x00_beacon_blink,
1830         .read_optrom            = qla2x00_read_optrom_data,
1831         .write_optrom           = qla2x00_write_optrom_data,
1832         .get_flash_version      = qla2x00_get_flash_version,
1833         .start_scsi             = qla2x00_start_scsi,
1834         .abort_isp              = qla2x00_abort_isp,
1835         .iospace_config         = qla2x00_iospace_config,
1836         .initialize_adapter     = qla2x00_initialize_adapter,
1837 };
1838 
1839 static struct isp_operations qla24xx_isp_ops = {
1840         .pci_config             = qla24xx_pci_config,
1841         .reset_chip             = qla24xx_reset_chip,
1842         .chip_diag              = qla24xx_chip_diag,
1843         .config_rings           = qla24xx_config_rings,
1844         .reset_adapter          = qla24xx_reset_adapter,
1845         .nvram_config           = qla24xx_nvram_config,
1846         .update_fw_options      = qla24xx_update_fw_options,
1847         .load_risc              = qla24xx_load_risc,
1848         .pci_info_str           = qla24xx_pci_info_str,
1849         .fw_version_str         = qla24xx_fw_version_str,
1850         .intr_handler           = qla24xx_intr_handler,
1851         .enable_intrs           = qla24xx_enable_intrs,
1852         .disable_intrs          = qla24xx_disable_intrs,
1853         .abort_command          = qla24xx_abort_command,
1854         .target_reset           = qla24xx_abort_target,
1855         .lun_reset              = qla24xx_lun_reset,
1856         .fabric_login           = qla24xx_login_fabric,
1857         .fabric_logout          = qla24xx_fabric_logout,
1858         .calc_req_entries       = NULL,
1859         .build_iocbs            = NULL,
1860         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1861         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1862         .read_nvram             = qla24xx_read_nvram_data,
1863         .write_nvram            = qla24xx_write_nvram_data,
1864         .fw_dump                = qla24xx_fw_dump,
1865         .beacon_on              = qla24xx_beacon_on,
1866         .beacon_off             = qla24xx_beacon_off,
1867         .beacon_blink           = qla24xx_beacon_blink,
1868         .read_optrom            = qla24xx_read_optrom_data,
1869         .write_optrom           = qla24xx_write_optrom_data,
1870         .get_flash_version      = qla24xx_get_flash_version,
1871         .start_scsi             = qla24xx_start_scsi,
1872         .abort_isp              = qla2x00_abort_isp,
1873         .iospace_config         = qla2x00_iospace_config,
1874         .initialize_adapter     = qla2x00_initialize_adapter,
1875 };
1876 
1877 static struct isp_operations qla25xx_isp_ops = {
1878         .pci_config             = qla25xx_pci_config,
1879         .reset_chip             = qla24xx_reset_chip,
1880         .chip_diag              = qla24xx_chip_diag,
1881         .config_rings           = qla24xx_config_rings,
1882         .reset_adapter          = qla24xx_reset_adapter,
1883         .nvram_config           = qla24xx_nvram_config,
1884         .update_fw_options      = qla24xx_update_fw_options,
1885         .load_risc              = qla24xx_load_risc,
1886         .pci_info_str           = qla24xx_pci_info_str,
1887         .fw_version_str         = qla24xx_fw_version_str,
1888         .intr_handler           = qla24xx_intr_handler,
1889         .enable_intrs           = qla24xx_enable_intrs,
1890         .disable_intrs          = qla24xx_disable_intrs,
1891         .abort_command          = qla24xx_abort_command,
1892         .target_reset           = qla24xx_abort_target,
1893         .lun_reset              = qla24xx_lun_reset,
1894         .fabric_login           = qla24xx_login_fabric,
1895         .fabric_logout          = qla24xx_fabric_logout,
1896         .calc_req_entries       = NULL,
1897         .build_iocbs            = NULL,
1898         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1899         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1900         .read_nvram             = qla25xx_read_nvram_data,
1901         .write_nvram            = qla25xx_write_nvram_data,
1902         .fw_dump                = qla25xx_fw_dump,
1903         .beacon_on              = qla24xx_beacon_on,
1904         .beacon_off             = qla24xx_beacon_off,
1905         .beacon_blink           = qla24xx_beacon_blink,
1906         .read_optrom            = qla25xx_read_optrom_data,
1907         .write_optrom           = qla24xx_write_optrom_data,
1908         .get_flash_version      = qla24xx_get_flash_version,
1909         .start_scsi             = qla24xx_dif_start_scsi,
1910         .abort_isp              = qla2x00_abort_isp,
1911         .iospace_config         = qla2x00_iospace_config,
1912         .initialize_adapter     = qla2x00_initialize_adapter,
1913 };
1914 
1915 static struct isp_operations qla81xx_isp_ops = {
1916         .pci_config             = qla25xx_pci_config,
1917         .reset_chip             = qla24xx_reset_chip,
1918         .chip_diag              = qla24xx_chip_diag,
1919         .config_rings           = qla24xx_config_rings,
1920         .reset_adapter          = qla24xx_reset_adapter,
1921         .nvram_config           = qla81xx_nvram_config,
1922         .update_fw_options      = qla81xx_update_fw_options,
1923         .load_risc              = qla81xx_load_risc,
1924         .pci_info_str           = qla24xx_pci_info_str,
1925         .fw_version_str         = qla24xx_fw_version_str,
1926         .intr_handler           = qla24xx_intr_handler,
1927         .enable_intrs           = qla24xx_enable_intrs,
1928         .disable_intrs          = qla24xx_disable_intrs,
1929         .abort_command          = qla24xx_abort_command,
1930         .target_reset           = qla24xx_abort_target,
1931         .lun_reset              = qla24xx_lun_reset,
1932         .fabric_login           = qla24xx_login_fabric,
1933         .fabric_logout          = qla24xx_fabric_logout,
1934         .calc_req_entries       = NULL,
1935         .build_iocbs            = NULL,
1936         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1937         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1938         .read_nvram             = NULL,
1939         .write_nvram            = NULL,
1940         .fw_dump                = qla81xx_fw_dump,
1941         .beacon_on              = qla24xx_beacon_on,
1942         .beacon_off             = qla24xx_beacon_off,
1943         .beacon_blink           = qla83xx_beacon_blink,
1944         .read_optrom            = qla25xx_read_optrom_data,
1945         .write_optrom           = qla24xx_write_optrom_data,
1946         .get_flash_version      = qla24xx_get_flash_version,
1947         .start_scsi             = qla24xx_dif_start_scsi,
1948         .abort_isp              = qla2x00_abort_isp,
1949         .iospace_config         = qla2x00_iospace_config,
1950         .initialize_adapter     = qla2x00_initialize_adapter,
1951 };
1952 
1953 static struct isp_operations qla82xx_isp_ops = {
1954         .pci_config             = qla82xx_pci_config,
1955         .reset_chip             = qla82xx_reset_chip,
1956         .chip_diag              = qla24xx_chip_diag,
1957         .config_rings           = qla82xx_config_rings,
1958         .reset_adapter          = qla24xx_reset_adapter,
1959         .nvram_config           = qla81xx_nvram_config,
1960         .update_fw_options      = qla24xx_update_fw_options,
1961         .load_risc              = qla82xx_load_risc,
1962         .pci_info_str           = qla24xx_pci_info_str,
1963         .fw_version_str         = qla24xx_fw_version_str,
1964         .intr_handler           = qla82xx_intr_handler,
1965         .enable_intrs           = qla82xx_enable_intrs,
1966         .disable_intrs          = qla82xx_disable_intrs,
1967         .abort_command          = qla24xx_abort_command,
1968         .target_reset           = qla24xx_abort_target,
1969         .lun_reset              = qla24xx_lun_reset,
1970         .fabric_login           = qla24xx_login_fabric,
1971         .fabric_logout          = qla24xx_fabric_logout,
1972         .calc_req_entries       = NULL,
1973         .build_iocbs            = NULL,
1974         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1975         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1976         .read_nvram             = qla24xx_read_nvram_data,
1977         .write_nvram            = qla24xx_write_nvram_data,
1978         .fw_dump                = qla24xx_fw_dump,
1979         .beacon_on              = qla82xx_beacon_on,
1980         .beacon_off             = qla82xx_beacon_off,
1981         .beacon_blink           = NULL,
1982         .read_optrom            = qla82xx_read_optrom_data,
1983         .write_optrom           = qla82xx_write_optrom_data,
1984         .get_flash_version      = qla82xx_get_flash_version,
1985         .start_scsi             = qla82xx_start_scsi,
1986         .abort_isp              = qla82xx_abort_isp,
1987         .iospace_config         = qla82xx_iospace_config,
1988         .initialize_adapter     = qla2x00_initialize_adapter,
1989 };
1990 
1991 static struct isp_operations qla8044_isp_ops = {
1992         .pci_config             = qla82xx_pci_config,
1993         .reset_chip             = qla82xx_reset_chip,
1994         .chip_diag              = qla24xx_chip_diag,
1995         .config_rings           = qla82xx_config_rings,
1996         .reset_adapter          = qla24xx_reset_adapter,
1997         .nvram_config           = qla81xx_nvram_config,
1998         .update_fw_options      = qla24xx_update_fw_options,
1999         .load_risc              = qla82xx_load_risc,
2000         .pci_info_str           = qla24xx_pci_info_str,
2001         .fw_version_str         = qla24xx_fw_version_str,
2002         .intr_handler           = qla8044_intr_handler,
2003         .enable_intrs           = qla82xx_enable_intrs,
2004         .disable_intrs          = qla82xx_disable_intrs,
2005         .abort_command          = qla24xx_abort_command,
2006         .target_reset           = qla24xx_abort_target,
2007         .lun_reset              = qla24xx_lun_reset,
2008         .fabric_login           = qla24xx_login_fabric,
2009         .fabric_logout          = qla24xx_fabric_logout,
2010         .calc_req_entries       = NULL,
2011         .build_iocbs            = NULL,
2012         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
2013         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
2014         .read_nvram             = NULL,
2015         .write_nvram            = NULL,
2016         .fw_dump                = qla24xx_fw_dump,
2017         .beacon_on              = qla82xx_beacon_on,
2018         .beacon_off             = qla82xx_beacon_off,
2019         .beacon_blink           = NULL,
2020         .read_optrom            = qla82xx_read_optrom_data,
2021         .write_optrom           = qla8044_write_optrom_data,
2022         .get_flash_version      = qla82xx_get_flash_version,
2023         .start_scsi             = qla82xx_start_scsi,
2024         .abort_isp              = qla8044_abort_isp,
2025         .iospace_config         = qla82xx_iospace_config,
2026         .initialize_adapter     = qla2x00_initialize_adapter,
2027 };
2028 
2029 static struct isp_operations qla83xx_isp_ops = {
2030         .pci_config             = qla25xx_pci_config,
2031         .reset_chip             = qla24xx_reset_chip,
2032         .chip_diag              = qla24xx_chip_diag,
2033         .config_rings           = qla24xx_config_rings,
2034         .reset_adapter          = qla24xx_reset_adapter,
2035         .nvram_config           = qla81xx_nvram_config,
2036         .update_fw_options      = qla81xx_update_fw_options,
2037         .load_risc              = qla81xx_load_risc,
2038         .pci_info_str           = qla24xx_pci_info_str,
2039         .fw_version_str         = qla24xx_fw_version_str,
2040         .intr_handler           = qla24xx_intr_handler,
2041         .enable_intrs           = qla24xx_enable_intrs,
2042         .disable_intrs          = qla24xx_disable_intrs,
2043         .abort_command          = qla24xx_abort_command,
2044         .target_reset           = qla24xx_abort_target,
2045         .lun_reset              = qla24xx_lun_reset,
2046         .fabric_login           = qla24xx_login_fabric,
2047         .fabric_logout          = qla24xx_fabric_logout,
2048         .calc_req_entries       = NULL,
2049         .build_iocbs            = NULL,
2050         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
2051         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
2052         .read_nvram             = NULL,
2053         .write_nvram            = NULL,
2054         .fw_dump                = qla83xx_fw_dump,
2055         .beacon_on              = qla24xx_beacon_on,
2056         .beacon_off             = qla24xx_beacon_off,
2057         .beacon_blink           = qla83xx_beacon_blink,
2058         .read_optrom            = qla25xx_read_optrom_data,
2059         .write_optrom           = qla24xx_write_optrom_data,
2060         .get_flash_version      = qla24xx_get_flash_version,
2061         .start_scsi             = qla24xx_dif_start_scsi,
2062         .abort_isp              = qla2x00_abort_isp,
2063         .iospace_config         = qla83xx_iospace_config,
2064         .initialize_adapter     = qla2x00_initialize_adapter,
2065 };
2066 
2067 static struct isp_operations qlafx00_isp_ops = {
2068         .pci_config             = qlafx00_pci_config,
2069         .reset_chip             = qlafx00_soft_reset,
2070         .chip_diag              = qlafx00_chip_diag,
2071         .config_rings           = qlafx00_config_rings,
2072         .reset_adapter          = qlafx00_soft_reset,
2073         .nvram_config           = NULL,
2074         .update_fw_options      = NULL,
2075         .load_risc              = NULL,
2076         .pci_info_str           = qlafx00_pci_info_str,
2077         .fw_version_str         = qlafx00_fw_version_str,
2078         .intr_handler           = qlafx00_intr_handler,
2079         .enable_intrs           = qlafx00_enable_intrs,
2080         .disable_intrs          = qlafx00_disable_intrs,
2081         .abort_command          = qlafx00_abort_command,
2082         .target_reset           = qlafx00_abort_target,
2083         .lun_reset              = qlafx00_lun_reset,
2084         .fabric_login           = NULL,
2085         .fabric_logout          = NULL,
2086         .calc_req_entries       = NULL,
2087         .build_iocbs            = NULL,
2088         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
2089         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
2090         .read_nvram             = qla24xx_read_nvram_data,
2091         .write_nvram            = qla24xx_write_nvram_data,
2092         .fw_dump                = NULL,
2093         .beacon_on              = qla24xx_beacon_on,
2094         .beacon_off             = qla24xx_beacon_off,
2095         .beacon_blink           = NULL,
2096         .read_optrom            = qla24xx_read_optrom_data,
2097         .write_optrom           = qla24xx_write_optrom_data,
2098         .get_flash_version      = qla24xx_get_flash_version,
2099         .start_scsi             = qlafx00_start_scsi,
2100         .abort_isp              = qlafx00_abort_isp,
2101         .iospace_config         = qlafx00_iospace_config,
2102         .initialize_adapter     = qlafx00_initialize_adapter,
2103 };
2104 
2105 static inline void
2106 qla2x00_set_isp_flags(struct qla_hw_data *ha)
2107 {
2108         ha->device_type = DT_EXTENDED_IDS;
2109         switch (ha->pdev->device) {
2110         case PCI_DEVICE_ID_QLOGIC_ISP2100:
2111                 ha->device_type |= DT_ISP2100;
2112                 ha->device_type &= ~DT_EXTENDED_IDS;
2113                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
2114                 break;
2115         case PCI_DEVICE_ID_QLOGIC_ISP2200:
2116                 ha->device_type |= DT_ISP2200;
2117                 ha->device_type &= ~DT_EXTENDED_IDS;
2118                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
2119                 break;
2120         case PCI_DEVICE_ID_QLOGIC_ISP2300:
2121                 ha->device_type |= DT_ISP2300;
2122                 ha->device_type |= DT_ZIO_SUPPORTED;
2123                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
2124                 break;
2125         case PCI_DEVICE_ID_QLOGIC_ISP2312:
2126                 ha->device_type |= DT_ISP2312;
2127                 ha->device_type |= DT_ZIO_SUPPORTED;
2128                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
2129                 break;
2130         case PCI_DEVICE_ID_QLOGIC_ISP2322:
2131                 ha->device_type |= DT_ISP2322;
2132                 ha->device_type |= DT_ZIO_SUPPORTED;
2133                 if (ha->pdev->subsystem_vendor == 0x1028 &&
2134                     ha->pdev->subsystem_device == 0x0170)
2135                         ha->device_type |= DT_OEM_001;
2136                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
2137                 break;
2138         case PCI_DEVICE_ID_QLOGIC_ISP6312:
2139                 ha->device_type |= DT_ISP6312;
2140                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
2141                 break;
2142         case PCI_DEVICE_ID_QLOGIC_ISP6322:
2143                 ha->device_type |= DT_ISP6322;
2144                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
2145                 break;
2146         case PCI_DEVICE_ID_QLOGIC_ISP2422:
2147                 ha->device_type |= DT_ISP2422;
2148                 ha->device_type |= DT_ZIO_SUPPORTED;
2149                 ha->device_type |= DT_FWI2;
2150                 ha->device_type |= DT_IIDMA;
2151                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2152                 break;
2153         case PCI_DEVICE_ID_QLOGIC_ISP2432:
2154                 ha->device_type |= DT_ISP2432;
2155                 ha->device_type |= DT_ZIO_SUPPORTED;
2156                 ha->device_type |= DT_FWI2;
2157                 ha->device_type |= DT_IIDMA;
2158                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2159                 break;
2160         case PCI_DEVICE_ID_QLOGIC_ISP8432:
2161                 ha->device_type |= DT_ISP8432;
2162                 ha->device_type |= DT_ZIO_SUPPORTED;
2163                 ha->device_type |= DT_FWI2;
2164                 ha->device_type |= DT_IIDMA;
2165                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2166                 break;
2167         case PCI_DEVICE_ID_QLOGIC_ISP5422:
2168                 ha->device_type |= DT_ISP5422;
2169                 ha->device_type |= DT_FWI2;
2170                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2171                 break;
2172         case PCI_DEVICE_ID_QLOGIC_ISP5432:
2173                 ha->device_type |= DT_ISP5432;
2174                 ha->device_type |= DT_FWI2;
2175                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2176                 break;
2177         case PCI_DEVICE_ID_QLOGIC_ISP2532:
2178                 ha->device_type |= DT_ISP2532;
2179                 ha->device_type |= DT_ZIO_SUPPORTED;
2180                 ha->device_type |= DT_FWI2;
2181                 ha->device_type |= DT_IIDMA;
2182                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2183                 break;
2184         case PCI_DEVICE_ID_QLOGIC_ISP8001:
2185                 ha->device_type |= DT_ISP8001;
2186                 ha->device_type |= DT_ZIO_SUPPORTED;
2187                 ha->device_type |= DT_FWI2;
2188                 ha->device_type |= DT_IIDMA;
2189                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2190                 break;
2191         case PCI_DEVICE_ID_QLOGIC_ISP8021:
2192                 ha->device_type |= DT_ISP8021;
2193                 ha->device_type |= DT_ZIO_SUPPORTED;
2194                 ha->device_type |= DT_FWI2;
2195                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2196                 /* Initialize 82XX ISP flags */
2197                 qla82xx_init_flags(ha);
2198                 break;
2199          case PCI_DEVICE_ID_QLOGIC_ISP8044:
2200                 ha->device_type |= DT_ISP8044;
2201                 ha->device_type |= DT_ZIO_SUPPORTED;
2202                 ha->device_type |= DT_FWI2;
2203                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2204                 /* Initialize 82XX ISP flags */
2205                 qla82xx_init_flags(ha);
2206                 break;
2207         case PCI_DEVICE_ID_QLOGIC_ISP2031:
2208                 ha->device_type |= DT_ISP2031;
2209                 ha->device_type |= DT_ZIO_SUPPORTED;
2210                 ha->device_type |= DT_FWI2;
2211                 ha->device_type |= DT_IIDMA;
2212                 ha->device_type |= DT_T10_PI;
2213                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2214                 break;
2215         case PCI_DEVICE_ID_QLOGIC_ISP8031:
2216                 ha->device_type |= DT_ISP8031;
2217                 ha->device_type |= DT_ZIO_SUPPORTED;
2218                 ha->device_type |= DT_FWI2;
2219                 ha->device_type |= DT_IIDMA;
2220                 ha->device_type |= DT_T10_PI;
2221                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2222                 break;
2223         case PCI_DEVICE_ID_QLOGIC_ISPF001:
2224                 ha->device_type |= DT_ISPFX00;
2225                 break;
2226         }
2227 
2228         if (IS_QLA82XX(ha))
2229                 ha->port_no = !(ha->portnum & 1);
2230         else
2231                 /* Get adapter physical port no from interrupt pin register. */
2232                 pci_read_config_byte(ha->pdev, PCI_INTERRUPT_PIN, &ha->port_no);
2233 
2234         if (ha->port_no & 1)
2235                 ha->flags.port0 = 1;
2236         else
2237                 ha->flags.port0 = 0;
2238         ql_dbg_pci(ql_dbg_init, ha->pdev, 0x000b,
2239             "device_type=0x%x port=%d fw_srisc_address=0x%x.\n",
2240             ha->device_type, ha->flags.port0, ha->fw_srisc_address);
2241 }
2242 
2243 static void
2244 qla2xxx_scan_start(struct Scsi_Host *shost)
2245 {
2246         scsi_qla_host_t *vha = shost_priv(shost);
2247 
2248         if (vha->hw->flags.running_gold_fw)
2249                 return;
2250 
2251         set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
2252         set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
2253         set_bit(RSCN_UPDATE, &vha->dpc_flags);
2254         set_bit(NPIV_CONFIG_NEEDED, &vha->dpc_flags);
2255 }
2256 
2257 static int
2258 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
2259 {
2260         scsi_qla_host_t *vha = shost_priv(shost);
2261 
2262         if (!vha->host)
2263                 return 1;
2264         if (time > vha->hw->loop_reset_delay * HZ)
2265                 return 1;
2266 
2267         return atomic_read(&vha->loop_state) == LOOP_READY;
2268 }
2269 
2270 /*
2271  * PCI driver interface
2272  */
2273 static int
2274 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
2275 {
2276         int     ret = -ENODEV;
2277         struct Scsi_Host *host;
2278         scsi_qla_host_t *base_vha = NULL;
2279         struct qla_hw_data *ha;
2280         char pci_info[30];
2281         char fw_str[30], wq_name[30];
2282         struct scsi_host_template *sht;
2283         int bars, mem_only = 0;
2284         uint16_t req_length = 0, rsp_length = 0;
2285         struct req_que *req = NULL;
2286         struct rsp_que *rsp = NULL;
2287         bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
2288         sht = &qla2xxx_driver_template;
2289         if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
2290             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
2291             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8432 ||
2292             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
2293             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
2294             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532 ||
2295             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8001 ||
2296             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8021 ||
2297             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2031 ||
2298             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8031 ||
2299             pdev->device == PCI_DEVICE_ID_QLOGIC_ISPF001 ||
2300             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8044) {
2301                 bars = pci_select_bars(pdev, IORESOURCE_MEM);
2302                 mem_only = 1;
2303                 ql_dbg_pci(ql_dbg_init, pdev, 0x0007,
2304                     "Mem only adapter.\n");
2305         }
2306         ql_dbg_pci(ql_dbg_init, pdev, 0x0008,
2307             "Bars=%d.\n", bars);
2308 
2309         if (mem_only) {
2310                 if (pci_enable_device_mem(pdev))
2311                         goto probe_out;
2312         } else {
2313                 if (pci_enable_device(pdev))
2314                         goto probe_out;
2315         }
2316 
2317         /* This may fail but that's ok */
2318         pci_enable_pcie_error_reporting(pdev);
2319 
2320         ha = kzalloc(sizeof(struct qla_hw_data), GFP_KERNEL);
2321         if (!ha) {
2322                 ql_log_pci(ql_log_fatal, pdev, 0x0009,
2323                     "Unable to allocate memory for ha.\n");
2324                 goto probe_out;
2325         }
2326         ql_dbg_pci(ql_dbg_init, pdev, 0x000a,
2327             "Memory allocated for ha=%p.\n", ha);
2328         ha->pdev = pdev;
2329         ha->tgt.enable_class_2 = ql2xenableclass2;
2330 
2331         /* Clear our data area */
2332         ha->bars = bars;
2333         ha->mem_only = mem_only;
2334         spin_lock_init(&ha->hardware_lock);
2335         spin_lock_init(&ha->vport_slock);
2336         mutex_init(&ha->selflogin_lock);
2337 
2338         /* Set ISP-type information. */
2339         qla2x00_set_isp_flags(ha);
2340 
2341         /* Set EEH reset type to fundamental if required by hba */
2342         if (IS_QLA24XX(ha) || IS_QLA25XX(ha) || IS_QLA81XX(ha) ||
2343             IS_QLA83XX(ha))
2344                 pdev->needs_freset = 1;
2345 
2346         ha->prev_topology = 0;
2347         ha->init_cb_size = sizeof(init_cb_t);
2348         ha->link_data_rate = PORT_SPEED_UNKNOWN;
2349         ha->optrom_size = OPTROM_SIZE_2300;
2350 
2351         /* Assign ISP specific operations. */
2352         if (IS_QLA2100(ha)) {
2353                 ha->max_fibre_devices = MAX_FIBRE_DEVICES_2100;
2354                 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
2355                 req_length = REQUEST_ENTRY_CNT_2100;
2356                 rsp_length = RESPONSE_ENTRY_CNT_2100;
2357                 ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
2358                 ha->gid_list_info_size = 4;
2359                 ha->flash_conf_off = ~0;
2360                 ha->flash_data_off = ~0;
2361                 ha->nvram_conf_off = ~0;
2362                 ha->nvram_data_off = ~0;
2363                 ha->isp_ops = &qla2100_isp_ops;
2364         } else if (IS_QLA2200(ha)) {
2365                 ha->max_fibre_devices = MAX_FIBRE_DEVICES_2100;
2366                 ha->mbx_count = MAILBOX_REGISTER_COUNT_2200;
2367                 req_length = REQUEST_ENTRY_CNT_2200;
2368                 rsp_length = RESPONSE_ENTRY_CNT_2100;
2369                 ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
2370                 ha->gid_list_info_size = 4;
2371                 ha->flash_conf_off = ~0;
2372                 ha->flash_data_off = ~0;
2373                 ha->nvram_conf_off = ~0;
2374                 ha->nvram_data_off = ~0;
2375                 ha->isp_ops = &qla2100_isp_ops;
2376         } else if (IS_QLA23XX(ha)) {
2377                 ha->max_fibre_devices = MAX_FIBRE_DEVICES_2100;
2378                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2379                 req_length = REQUEST_ENTRY_CNT_2200;
2380                 rsp_length = RESPONSE_ENTRY_CNT_2300;
2381                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2382                 ha->gid_list_info_size = 6;
2383                 if (IS_QLA2322(ha) || IS_QLA6322(ha))
2384                         ha->optrom_size = OPTROM_SIZE_2322;
2385                 ha->flash_conf_off = ~0;
2386                 ha->flash_data_off = ~0;
2387                 ha->nvram_conf_off = ~0;
2388                 ha->nvram_data_off = ~0;
2389                 ha->isp_ops = &qla2300_isp_ops;
2390         } else if (IS_QLA24XX_TYPE(ha)) {
2391                 ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
2392                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2393                 req_length = REQUEST_ENTRY_CNT_24XX;
2394                 rsp_length = RESPONSE_ENTRY_CNT_2300;
2395                 ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
2396                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2397                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
2398                 ha->gid_list_info_size = 8;
2399                 ha->optrom_size = OPTROM_SIZE_24XX;
2400                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA24XX;
2401                 ha->isp_ops = &qla24xx_isp_ops;
2402                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2403                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2404                 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2405                 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2406         } else if (IS_QLA25XX(ha)) {
2407                 ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
2408                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2409                 req_length = REQUEST_ENTRY_CNT_24XX;
2410                 rsp_length = RESPONSE_ENTRY_CNT_2300;
2411                 ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
2412                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2413                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
2414                 ha->gid_list_info_size = 8;
2415                 ha->optrom_size = OPTROM_SIZE_25XX;
2416                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2417                 ha->isp_ops = &qla25xx_isp_ops;
2418                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2419                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2420                 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2421                 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2422         } else if (IS_QLA81XX(ha)) {
2423                 ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
2424                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2425                 req_length = REQUEST_ENTRY_CNT_24XX;
2426                 rsp_length = RESPONSE_ENTRY_CNT_2300;
2427                 ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
2428                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2429                 ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
2430                 ha->gid_list_info_size = 8;
2431                 ha->optrom_size = OPTROM_SIZE_81XX;
2432                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2433                 ha->isp_ops = &qla81xx_isp_ops;
2434                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_81XX;
2435                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA_81XX;
2436                 ha->nvram_conf_off = ~0;
2437                 ha->nvram_data_off = ~0;
2438         } else if (IS_QLA82XX(ha)) {
2439                 ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
2440                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2441                 req_length = REQUEST_ENTRY_CNT_82XX;
2442                 rsp_length = RESPONSE_ENTRY_CNT_82XX;
2443                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2444                 ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
2445                 ha->gid_list_info_size = 8;
2446                 ha->optrom_size = OPTROM_SIZE_82XX;
2447                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2448                 ha->isp_ops = &qla82xx_isp_ops;
2449                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2450                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2451                 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2452                 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2453         } else if (IS_QLA8044(ha)) {
2454                 ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
2455                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2456                 req_length = REQUEST_ENTRY_CNT_82XX;
2457                 rsp_length = RESPONSE_ENTRY_CNT_82XX;
2458                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2459                 ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
2460                 ha->gid_list_info_size = 8;
2461                 ha->optrom_size = OPTROM_SIZE_83XX;
2462                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2463                 ha->isp_ops = &qla8044_isp_ops;
2464                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2465                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2466                 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2467                 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2468         } else if (IS_QLA83XX(ha)) {
2469                 ha->portnum = PCI_FUNC(ha->pdev->devfn);
2470                 ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
2471                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
2472                 req_length = REQUEST_ENTRY_CNT_24XX;
2473                 rsp_length = RESPONSE_ENTRY_CNT_2300;
2474                 ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
2475                 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2476                 ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
2477                 ha->gid_list_info_size = 8;
2478                 ha->optrom_size = OPTROM_SIZE_83XX;
2479                 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2480                 ha->isp_ops = &qla83xx_isp_ops;
2481                 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_81XX;
2482                 ha->flash_data_off = FARX_ACCESS_FLASH_DATA_81XX;
2483                 ha->nvram_conf_off = ~0;
2484                 ha->nvram_data_off = ~0;
2485         }  else if (IS_QLAFX00(ha)) {
2486                 ha->max_fibre_devices = MAX_FIBRE_DEVICES_FX00;
2487                 ha->mbx_count = MAILBOX_REGISTER_COUNT_FX00;
2488                 ha->aen_mbx_count = AEN_MAILBOX_REGISTER_COUNT_FX00;
2489                 req_length = REQUEST_ENTRY_CNT_FX00;
2490                 rsp_length = RESPONSE_ENTRY_CNT_FX00;
2491                 ha->init_cb_size = sizeof(struct init_cb_fx);
2492                 ha->isp_ops = &qlafx00_isp_ops;
2493                 ha->port_down_retry_count = 30; /* default value */
2494                 ha->mr.fw_hbt_cnt = QLAFX00_HEARTBEAT_INTERVAL;
2495                 ha->mr.fw_reset_timer_tick = QLAFX00_RESET_INTERVAL;
2496                 ha->mr.fw_critemp_timer_tick = QLAFX00_CRITEMP_INTERVAL;
2497                 ha->mr.fw_hbt_en = 1;
2498                 ha->mr.host_info_resend = false;
2499                 ha->mr.hinfo_resend_timer_tick = QLAFX00_HINFO_RESEND_INTERVAL;
2500         }
2501 
2502         ql_dbg_pci(ql_dbg_init, pdev, 0x001e,
2503             "mbx_count=%d, req_length=%d, "
2504             "rsp_length=%d, max_loop_id=%d, init_cb_size=%d, "
2505             "gid_list_info_size=%d, optrom_size=%d, nvram_npiv_size=%d, "
2506             "max_fibre_devices=%d.\n",
2507             ha->mbx_count, req_length, rsp_length, ha->max_loop_id,
2508             ha->init_cb_size, ha->gid_list_info_size, ha->optrom_size,
2509             ha->nvram_npiv_size, ha->max_fibre_devices);
2510         ql_dbg_pci(ql_dbg_init, pdev, 0x001f,
2511             "isp_ops=%p, flash_conf_off=%d, "
2512             "flash_data_off=%d, nvram_conf_off=%d, nvram_data_off=%d.\n",
2513             ha->isp_ops, ha->flash_conf_off, ha->flash_data_off,
2514             ha->nvram_conf_off, ha->nvram_data_off);
2515 
2516         /* Configure PCI I/O space */
2517         ret = ha->isp_ops->iospace_config(ha);
2518         if (ret)
2519                 goto iospace_config_failed;
2520 
2521         ql_log_pci(ql_log_info, pdev, 0x001d,
2522             "Found an ISP%04X irq %d iobase 0x%p.\n",
2523             pdev->device, pdev->irq, ha->iobase);
2524         mutex_init(&ha->vport_lock);
2525         init_completion(&ha->mbx_cmd_comp);
2526         complete(&ha->mbx_cmd_comp);
2527         init_completion(&ha->mbx_intr_comp);
2528         init_completion(&ha->dcbx_comp);
2529         init_completion(&ha->lb_portup_comp);
2530 
2531         set_bit(0, (unsigned long *) ha->vp_idx_map);
2532 
2533         qla2x00_config_dma_addressing(ha);
2534         ql_dbg_pci(ql_dbg_init, pdev, 0x0020,
2535             "64 Bit addressing is %s.\n",
2536             ha->flags.enable_64bit_addressing ? "enable" :
2537             "disable");
2538         ret = qla2x00_mem_alloc(ha, req_length, rsp_length, &req, &rsp);
2539         if (!ret) {
2540                 ql_log_pci(ql_log_fatal, pdev, 0x0031,
2541                     "Failed to allocate memory for adapter, aborting.\n");
2542 
2543                 goto probe_hw_failed;
2544         }
2545 
2546         req->max_q_depth = MAX_Q_DEPTH;
2547         if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
2548                 req->max_q_depth = ql2xmaxqdepth;
2549 
2550 
2551         base_vha = qla2x00_create_host(sht, ha);
2552         if (!base_vha) {
2553                 ret = -ENOMEM;
2554                 qla2x00_mem_free(ha);
2555                 qla2x00_free_req_que(ha, req);
2556                 qla2x00_free_rsp_que(ha, rsp);
2557                 goto probe_hw_failed;
2558         }
2559 
2560         pci_set_drvdata(pdev, base_vha);
2561 
2562         host = base_vha->host;
2563         base_vha->req = req;
2564         if (IS_QLAFX00(ha))
2565                 host->can_queue = QLAFX00_MAX_CANQUEUE;
2566         else
2567                 host->can_queue = req->length + 128;
2568         if (IS_QLA2XXX_MIDTYPE(ha))
2569                 base_vha->mgmt_svr_loop_id = 10 + base_vha->vp_idx;
2570         else
2571                 base_vha->mgmt_svr_loop_id = MANAGEMENT_SERVER +
2572                                                 base_vha->vp_idx;
2573 
2574         /* Setup fcport template structure. */
2575         ha->mr.fcport.vha = base_vha;
2576         ha->mr.fcport.port_type = FCT_UNKNOWN;
2577         ha->mr.fcport.loop_id = FC_NO_LOOP_ID;
2578         qla2x00_set_fcport_state(&ha->mr.fcport, FCS_UNCONFIGURED);
2579         ha->mr.fcport.supported_classes = FC_COS_UNSPECIFIED;
2580         ha->mr.fcport.scan_state = 1;
2581 
2582         /* Set the SG table size based on ISP type */
2583         if (!IS_FWI2_CAPABLE(ha)) {
2584                 if (IS_QLA2100(ha))
2585                         host->sg_tablesize = 32;
2586         } else {
2587                 if (!IS_QLA82XX(ha))
2588                         host->sg_tablesize = QLA_SG_ALL;
2589         }
2590         ql_dbg(ql_dbg_init, base_vha, 0x0032,
2591             "can_queue=%d, req=%p, "
2592             "mgmt_svr_loop_id=%d, sg_tablesize=%d.\n",
2593             host->can_queue, base_vha->req,
2594             base_vha->mgmt_svr_loop_id, host->sg_tablesize);
2595         host->max_id = ha->max_fibre_devices;
2596         host->cmd_per_lun = 3;
2597         host->unique_id = host->host_no;
2598         if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif)
2599                 host->max_cmd_len = 32;
2600         else
2601                 host->max_cmd_len = MAX_CMDSZ;
2602         host->max_channel = MAX_BUSES - 1;
2603         host->max_lun = ql2xmaxlun;
2604         host->transportt = qla2xxx_transport_template;
2605         sht->vendor_id = (SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC);
2606 
2607         ql_dbg(ql_dbg_init, base_vha, 0x0033,
2608             "max_id=%d this_id=%d "
2609             "cmd_per_len=%d unique_id=%d max_cmd_len=%d max_channel=%d "
2610             "max_lun=%d transportt=%p, vendor_id=%llu.\n", host->max_id,
2611             host->this_id, host->cmd_per_lun, host->unique_id,
2612             host->max_cmd_len, host->max_channel, host->max_lun,
2613             host->transportt, sht->vendor_id);
2614 
2615 que_init:
2616         /* Alloc arrays of request and response ring ptrs */
2617         if (!qla2x00_alloc_queues(ha, req, rsp)) {
2618                 ql_log(ql_log_fatal, base_vha, 0x003d,
2619                     "Failed to allocate memory for queue pointers..."
2620                     "aborting.\n");
2621                 goto probe_init_failed;
2622         }
2623 
2624         qlt_probe_one_stage1(base_vha, ha);
2625 
2626         /* Set up the irqs */
2627         ret = qla2x00_request_irqs(ha, rsp);
2628         if (ret)
2629                 goto probe_init_failed;
2630 
2631         pci_save_state(pdev);
2632 
2633         /* Assign back pointers */
2634         rsp->req = req;
2635         req->rsp = rsp;
2636 
2637         if (IS_QLAFX00(ha)) {
2638                 ha->rsp_q_map[0] = rsp;
2639                 ha->req_q_map[0] = req;
2640                 set_bit(0, ha->req_qid_map);
2641                 set_bit(0, ha->rsp_qid_map);
2642         }
2643 
2644         /* FWI2-capable only. */
2645         req->req_q_in = &ha->iobase->isp24.req_q_in;
2646         req->req_q_out = &ha->iobase->isp24.req_q_out;
2647         rsp->rsp_q_in = &ha->iobase->isp24.rsp_q_in;
2648         rsp->rsp_q_out = &ha->iobase->isp24.rsp_q_out;
2649         if (ha->mqenable || IS_QLA83XX(ha)) {
2650                 req->req_q_in = &ha->mqiobase->isp25mq.req_q_in;
2651                 req->req_q_out = &ha->mqiobase->isp25mq.req_q_out;
2652                 rsp->rsp_q_in = &ha->mqiobase->isp25mq.rsp_q_in;
2653                 rsp->rsp_q_out =  &ha->mqiobase->isp25mq.rsp_q_out;
2654         }
2655 
2656         if (IS_QLAFX00(ha)) {
2657                 req->req_q_in = &ha->iobase->ispfx00.req_q_in;
2658                 req->req_q_out = &ha->iobase->ispfx00.req_q_out;
2659                 rsp->rsp_q_in = &ha->iobase->ispfx00.rsp_q_in;
2660                 rsp->rsp_q_out = &ha->iobase->ispfx00.rsp_q_out;
2661         }
2662 
2663         if (IS_P3P_TYPE(ha)) {
2664                 req->req_q_out = &ha->iobase->isp82.req_q_out[0];
2665                 rsp->rsp_q_in = &ha->iobase->isp82.rsp_q_in[0];
2666                 rsp->rsp_q_out = &ha->iobase->isp82.rsp_q_out[0];
2667         }
2668 
2669         ql_dbg(ql_dbg_multiq, base_vha, 0xc009,
2670             "rsp_q_map=%p req_q_map=%p rsp->req=%p req->rsp=%p.\n",
2671             ha->rsp_q_map, ha->req_q_map, rsp->req, req->rsp);
2672         ql_dbg(ql_dbg_multiq, base_vha, 0xc00a,
2673             "req->req_q_in=%p req->req_q_out=%p "
2674             "rsp->rsp_q_in=%p rsp->rsp_q_out=%p.\n",
2675             req->req_q_in, req->req_q_out,
2676             rsp->rsp_q_in, rsp->rsp_q_out);
2677         ql_dbg(ql_dbg_init, base_vha, 0x003e,
2678             "rsp_q_map=%p req_q_map=%p rsp->req=%p req->rsp=%p.\n",
2679             ha->rsp_q_map, ha->req_q_map, rsp->req, req->rsp);
2680         ql_dbg(ql_dbg_init, base_vha, 0x003f,
2681             "req->req_q_in=%p req->req_q_out=%p rsp->rsp_q_in=%p rsp->rsp_q_out=%p.\n",
2682             req->req_q_in, req->req_q_out, rsp->rsp_q_in, rsp->rsp_q_out);
2683 
2684         if (ha->isp_ops->initialize_adapter(base_vha)) {
2685                 ql_log(ql_log_fatal, base_vha, 0x00d6,
2686                     "Failed to initialize adapter - Adapter flags %x.\n",
2687                     base_vha->device_flags);
2688 
2689                 if (IS_QLA82XX(ha)) {
2690                         qla82xx_idc_lock(ha);
2691                         qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
2692                                 QLA8XXX_DEV_FAILED);
2693                         qla82xx_idc_unlock(ha);
2694                         ql_log(ql_log_fatal, base_vha, 0x00d7,
2695                             "HW State: FAILED.\n");
2696                 } else if (IS_QLA8044(ha)) {
2697                         qla8044_idc_lock(ha);
2698                         qla8044_wr_direct(base_vha,
2699                                 QLA8044_CRB_DEV_STATE_INDEX,
2700                                 QLA8XXX_DEV_FAILED);
2701                         qla8044_idc_unlock(ha);
2702                         ql_log(ql_log_fatal, base_vha, 0x0150,
2703                             "HW State: FAILED.\n");
2704                 }
2705 
2706                 ret = -ENODEV;
2707                 goto probe_failed;
2708         }
2709 
2710         if (ha->mqenable) {
2711                 if (qla25xx_setup_mode(base_vha)) {
2712                         ql_log(ql_log_warn, base_vha, 0x00ec,
2713                             "Failed to create queues, falling back to single queue mode.\n");
2714                         goto que_init;
2715                 }
2716         }
2717 
2718         if (ha->flags.running_gold_fw)
2719                 goto skip_dpc;
2720 
2721         /*
2722          * Startup the kernel thread for this host adapter
2723          */
2724         ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
2725             "%s_dpc", base_vha->host_str);
2726         if (IS_ERR(ha->dpc_thread)) {
2727                 ql_log(ql_log_fatal, base_vha, 0x00ed,
2728                     "Failed to start DPC thread.\n");
2729                 ret = PTR_ERR(ha->dpc_thread);
2730                 goto probe_failed;
2731         }
2732         ql_dbg(ql_dbg_init, base_vha, 0x00ee,
2733             "DPC thread started successfully.\n");
2734 
2735         /*
2736          * If we're not coming up in initiator mode, we might sit for
2737          * a while without waking up the dpc thread, which leads to a
2738          * stuck process warning.  So just kick the dpc once here and
2739          * let the kthread start (and go back to sleep in qla2x00_do_dpc).
2740          */
2741         qla2xxx_wake_dpc(base_vha);
2742 
2743         INIT_WORK(&ha->board_disable, qla2x00_disable_board_on_pci_error);
2744 
2745         if (IS_QLA8031(ha) || IS_MCTP_CAPABLE(ha)) {
2746                 sprintf(wq_name, "qla2xxx_%lu_dpc_lp_wq", base_vha->host_no);
2747                 ha->dpc_lp_wq = create_singlethread_workqueue(wq_name);
2748                 INIT_WORK(&ha->idc_aen, qla83xx_service_idc_aen);
2749 
2750                 sprintf(wq_name, "qla2xxx_%lu_dpc_hp_wq", base_vha->host_no);
2751                 ha->dpc_hp_wq = create_singlethread_workqueue(wq_name);
2752                 INIT_WORK(&ha->nic_core_reset, qla83xx_nic_core_reset_work);
2753                 INIT_WORK(&ha->idc_state_handler,
2754                     qla83xx_idc_state_handler_work);
2755                 INIT_WORK(&ha->nic_core_unrecoverable,
2756                     qla83xx_nic_core_unrecoverable_work);
2757         }
2758 
2759 skip_dpc:
2760         list_add_tail(&base_vha->list, &ha->vp_list);
2761         base_vha->host->irq = ha->pdev->irq;
2762 
2763         /* Initialized the timer */
2764         qla2x00_start_timer(base_vha, qla2x00_timer, WATCH_INTERVAL);
2765         ql_dbg(ql_dbg_init, base_vha, 0x00ef,
2766             "Started qla2x00_timer with "
2767             "interval=%d.\n", WATCH_INTERVAL);
2768         ql_dbg(ql_dbg_init, base_vha, 0x00f0,
2769             "Detected hba at address=%p.\n",
2770             ha);
2771 
2772         if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif) {
2773                 if (ha->fw_attributes & BIT_4) {
2774                         int prot = 0, guard;
2775                         base_vha->flags.difdix_supported = 1;
2776                         ql_dbg(ql_dbg_init, base_vha, 0x00f1,
2777                             "Registering for DIF/DIX type 1 and 3 protection.\n");
2778                         if (ql2xenabledif == 1)
2779                                 prot = SHOST_DIX_TYPE0_PROTECTION;
2780                         scsi_host_set_prot(host,
2781                             prot | SHOST_DIF_TYPE1_PROTECTION
2782                             | SHOST_DIF_TYPE2_PROTECTION
2783                             | SHOST_DIF_TYPE3_PROTECTION
2784                             | SHOST_DIX_TYPE1_PROTECTION
2785                             | SHOST_DIX_TYPE2_PROTECTION
2786                             | SHOST_DIX_TYPE3_PROTECTION);
2787 
2788                         guard = SHOST_DIX_GUARD_CRC;
2789 
2790                         if (IS_PI_IPGUARD_CAPABLE(ha) &&
2791                             (ql2xenabledif > 1 || IS_PI_DIFB_DIX0_CAPABLE(ha)))
2792                                 guard |= SHOST_DIX_GUARD_IP;
2793 
2794                         scsi_host_set_guard(host, guard);
2795                 } else
2796                         base_vha->flags.difdix_supported = 0;
2797         }
2798 
2799         ha->isp_ops->enable_intrs(ha);
2800 
2801         if (IS_QLAFX00(ha)) {
2802                 ret = qlafx00_fx_disc(base_vha,
2803                         &base_vha->hw->mr.fcport, FXDISC_GET_CONFIG_INFO);
2804                 host->sg_tablesize = (ha->mr.extended_io_enabled) ?
2805                     QLA_SG_ALL : 128;
2806         }
2807 
2808         ret = scsi_add_host(host, &pdev->dev);
2809         if (ret)
2810                 goto probe_failed;
2811 
2812         base_vha->flags.init_done = 1;
2813         base_vha->flags.online = 1;
2814 
2815         ql_dbg(ql_dbg_init, base_vha, 0x00f2,
2816             "Init done and hba is online.\n");
2817 
2818         if (qla_ini_mode_enabled(base_vha))
2819                 scsi_scan_host(host);
2820         else
2821                 ql_dbg(ql_dbg_init, base_vha, 0x0122,
2822                         "skipping scsi_scan_host() for non-initiator port\n");
2823 
2824         qla2x00_alloc_sysfs_attr(base_vha);
2825 
2826         if (IS_QLAFX00(ha)) {
2827                 ret = qlafx00_fx_disc(base_vha,
2828                         &base_vha->hw->mr.fcport, FXDISC_GET_PORT_INFO);
2829 
2830                 /* Register system information */
2831                 ret =  qlafx00_fx_disc(base_vha,
2832                         &base_vha->hw->mr.fcport, FXDISC_REG_HOST_INFO);
2833         }
2834 
2835         qla2x00_init_host_attr(base_vha);
2836 
2837         qla2x00_dfs_setup(base_vha);
2838 
2839         ql_log(ql_log_info, base_vha, 0x00fb,
2840             "QLogic %s - %s.\n", ha->model_number, ha->model_desc);
2841         ql_log(ql_log_info, base_vha, 0x00fc,
2842             "ISP%04X: %s @ %s hdma%c host#=%ld fw=%s.\n",
2843             pdev->device, ha->isp_ops->pci_info_str(base_vha, pci_info),
2844             pci_name(pdev), ha->flags.enable_64bit_addressing ? '+' : '-',
2845             base_vha->host_no,
2846             ha->isp_ops->fw_version_str(base_vha, fw_str));
2847 
2848         qlt_add_target(ha, base_vha);
2849 
2850         return 0;
2851 
2852 probe_init_failed:
2853         qla2x00_free_req_que(ha, req);
2854         ha->req_q_map[0] = NULL;
2855         clear_bit(0, ha->req_qid_map);
2856         qla2x00_free_rsp_que(ha, rsp);
2857         ha->rsp_q_map[0] = NULL;
2858         clear_bit(0, ha->rsp_qid_map);
2859         ha->max_req_queues = ha->max_rsp_queues = 0;
2860 
2861 probe_failed:
2862         if (base_vha->timer_active)
2863                 qla2x00_stop_timer(base_vha);
2864         base_vha->flags.online = 0;
2865         if (ha->dpc_thread) {
2866                 struct task_struct *t = ha->dpc_thread;
2867 
2868                 ha->dpc_thread = NULL;
2869                 kthread_stop(t);
2870         }
2871 
2872         qla2x00_free_device(base_vha);
2873 
2874         scsi_host_put(base_vha->host);
2875 
2876 probe_hw_failed:
2877         if (IS_QLA82XX(ha)) {
2878                 qla82xx_idc_lock(ha);
2879                 qla82xx_clear_drv_active(ha);
2880                 qla82xx_idc_unlock(ha);
2881         }
2882         if (IS_QLA8044(ha)) {
2883                 qla8044_idc_lock(ha);
2884                 qla8044_clear_drv_active(ha);
2885                 qla8044_idc_unlock(ha);
2886         }
2887 iospace_config_failed:
2888         if (IS_P3P_TYPE(ha)) {
2889                 if (!ha->nx_pcibase)
2890                         iounmap((device_reg_t __iomem *)ha->nx_pcibase);
2891                 if (!ql2xdbwr)
2892                         iounmap((device_reg_t __iomem *)ha->nxdb_wr_ptr);
2893         } else {
2894                 if (ha->iobase)
2895                         iounmap(ha->iobase);
2896                 if (ha->cregbase)
2897                         iounmap(ha->cregbase);
2898         }
2899         pci_release_selected_regions(ha->pdev, ha->bars);
2900         kfree(ha);
2901         ha = NULL;
2902 
2903 probe_out:
2904         pci_disable_device(pdev);
2905         return ret;
2906 }
2907 
2908 static void
2909 qla2x00_shutdown(struct pci_dev *pdev)
2910 {
2911         scsi_qla_host_t *vha;
2912         struct qla_hw_data  *ha;
2913 
2914         if (!atomic_read(&pdev->enable_cnt))
2915                 return;
2916 
2917         vha = pci_get_drvdata(pdev);
2918         ha = vha->hw;
2919 
2920         /* Notify ISPFX00 firmware */
2921         if (IS_QLAFX00(ha))
2922                 qlafx00_driver_shutdown(vha, 20);
2923 
2924         /* Turn-off FCE trace */
2925         if (ha->flags.fce_enabled) {
2926                 qla2x00_disable_fce_trace(vha, NULL, NULL);
2927                 ha->flags.fce_enabled = 0;
2928         }
2929 
2930         /* Turn-off EFT trace */
2931         if (ha->eft)
2932                 qla2x00_disable_eft_trace(vha);
2933 
2934         /* Stop currently executing firmware. */
2935         qla2x00_try_to_stop_firmware(vha);
2936 
2937         /* Turn adapter off line */
2938         vha->flags.online = 0;
2939 
2940         /* turn-off interrupts on the card */
2941         if (ha->interrupts_on) {
2942                 vha->flags.init_done = 0;
2943                 ha->isp_ops->disable_intrs(ha);
2944         }
2945 
2946         qla2x00_free_irqs(vha);
2947 
2948         qla2x00_free_fw_dump(ha);
2949 }
2950 
2951 /* Deletes all the virtual ports for a given ha */
2952 static void
2953 qla2x00_delete_all_vps(struct qla_hw_data *ha, scsi_qla_host_t *base_vha)
2954 {
2955         struct Scsi_Host *scsi_host;
2956         scsi_qla_host_t *vha;
2957         unsigned long flags;
2958 
2959         mutex_lock(&ha->vport_lock);
2960         while (ha->cur_vport_count) {
2961                 spin_lock_irqsave(&ha->vport_slock, flags);
2962 
2963                 BUG_ON(base_vha->list.next == &ha->vp_list);
2964                 /* This assumes first entry in ha->vp_list is always base vha */
2965                 vha = list_first_entry(&base_vha->list, scsi_qla_host_t, list);
2966                 scsi_host = scsi_host_get(vha->host);
2967 
2968                 spin_unlock_irqrestore(&ha->vport_slock, flags);
2969                 mutex_unlock(&ha->vport_lock);
2970 
2971                 fc_vport_terminate(vha->fc_vport);
2972                 scsi_host_put(vha->host);
2973 
2974                 mutex_lock(&ha->vport_lock);
2975         }
2976         mutex_unlock(&ha->vport_lock);
2977 }
2978 
2979 /* Stops all deferred work threads */
2980 static void
2981 qla2x00_destroy_deferred_work(struct qla_hw_data *ha)
2982 {
2983         /* Flush the work queue and remove it */
2984         if (ha->wq) {
2985                 flush_workqueue(ha->wq);
2986                 destroy_workqueue(ha->wq);
2987                 ha->wq = NULL;
2988         }
2989 
2990         /* Cancel all work and destroy DPC workqueues */
2991         if (ha->dpc_lp_wq) {
2992                 cancel_work_sync(&ha->idc_aen);
2993                 destroy_workqueue(ha->dpc_lp_wq);
2994                 ha->dpc_lp_wq = NULL;
2995         }
2996 
2997         if (ha->dpc_hp_wq) {
2998                 cancel_work_sync(&ha->nic_core_reset);
2999                 cancel_work_sync(&ha->idc_state_handler);
3000                 cancel_work_sync(&ha->nic_core_unrecoverable);
3001                 destroy_workqueue(ha->dpc_hp_wq);
3002                 ha->dpc_hp_wq = NULL;
3003         }
3004 
3005         /* Kill the kernel thread for this host */
3006         if (ha->dpc_thread) {
3007                 struct task_struct *t = ha->dpc_thread;
3008 
3009                 /*
3010                  * qla2xxx_wake_dpc checks for ->dpc_thread
3011                  * so we need to zero it out.
3012                  */
3013                 ha->dpc_thread = NULL;
3014                 kthread_stop(t);
3015         }
3016 }
3017 
3018 static void
3019 qla2x00_unmap_iobases(struct qla_hw_data *ha)
3020 {
3021         if (IS_QLA82XX(ha)) {
3022 
3023                 iounmap((device_reg_t __iomem *)ha->nx_pcibase);
3024                 if (!ql2xdbwr)
3025                         iounmap((device_reg_t __iomem *)ha->nxdb_wr_ptr);
3026         } else {
3027                 if (ha->iobase)
3028                         iounmap(ha->iobase);
3029 
3030                 if (ha->cregbase)
3031                         iounmap(ha->cregbase);
3032 
3033                 if (ha->mqiobase)
3034                         iounmap(ha->mqiobase);
3035 
3036                 if (IS_QLA83XX(ha) && ha->msixbase)
3037                         iounmap(ha->msixbase);
3038         }
3039 }
3040 
3041 static void
3042 qla2x00_clear_drv_active(scsi_qla_host_t *vha)
3043 {
3044         struct qla_hw_data *ha = vha->hw;
3045 
3046         if (IS_QLA8044(ha)) {
3047                 qla8044_idc_lock(ha);
3048                 qla8044_clear_drv_active(ha);
3049                 qla8044_idc_unlock(ha);
3050         } else if (IS_QLA82XX(ha)) {
3051                 qla82xx_idc_lock(ha);
3052                 qla82xx_clear_drv_active(ha);
3053                 qla82xx_idc_unlock(ha);
3054         }
3055 }
3056 
3057 static void
3058 qla2x00_remove_one(struct pci_dev *pdev)
3059 {
3060         scsi_qla_host_t *base_vha;
3061         struct qla_hw_data  *ha;
3062 
3063         /*
3064          * If the PCI device is disabled that means that probe failed and any
3065          * resources should be have cleaned up on probe exit.
3066          */
3067         if (!atomic_read(&pdev->enable_cnt))
3068                 return;
3069 
3070         base_vha = pci_get_drvdata(pdev);
3071         ha = base_vha->hw;
3072 
3073         set_bit(UNLOADING, &base_vha->dpc_flags);
3074 
3075         if (IS_QLAFX00(ha))
3076                 qlafx00_driver_shutdown(base_vha, 20);
3077 
3078         qla2x00_delete_all_vps(ha, base_vha);
3079 
3080         if (IS_QLA8031(ha)) {
3081                 ql_dbg(ql_dbg_p3p, base_vha, 0xb07e,
3082                     "Clearing fcoe driver presence.\n");
3083                 if (qla83xx_clear_drv_presence(base_vha) != QLA_SUCCESS)
3084                         ql_dbg(ql_dbg_p3p, base_vha, 0xb079,
3085                             "Error while clearing DRV-Presence.\n");
3086         }
3087 
3088         qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
3089 
3090         qla2x00_dfs_remove(base_vha);
3091 
3092         qla84xx_put_chip(base_vha);
3093 
3094         /* Disable timer */
3095         if (base_vha->timer_active)
3096                 qla2x00_stop_timer(base_vha);
3097 
3098         base_vha->flags.online = 0;
3099 
3100         qla2x00_destroy_deferred_work(ha);
3101 
3102         qlt_remove_target(ha, base_vha);
3103 
3104         qla2x00_free_sysfs_attr(base_vha, true);
3105 
3106         fc_remove_host(base_vha->host);
3107 
3108         scsi_remove_host(base_vha->host);
3109 
3110         qla2x00_free_device(base_vha);
3111 
3112         scsi_host_put(base_vha->host);
3113 
3114         qla2x00_clear_drv_active(base_vha);
3115 
3116         qla2x00_unmap_iobases(ha);
3117 
3118         pci_release_selected_regions(ha->pdev, ha->bars);
3119         kfree(ha);
3120         ha = NULL;
3121 
3122         pci_disable_pcie_error_reporting(pdev);
3123 
3124         pci_disable_device(pdev);
3125 }
3126 
3127 static void
3128 qla2x00_free_device(scsi_qla_host_t *vha)
3129 {
3130         struct qla_hw_data *ha = vha->hw;
3131 
3132         qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
3133 
3134         /* Disable timer */
3135         if (vha->timer_active)
3136                 qla2x00_stop_timer(vha);
3137 
3138         qla25xx_delete_queues(vha);
3139 
3140         if (ha->flags.fce_enabled)
3141                 qla2x00_disable_fce_trace(vha, NULL, NULL);
3142 
3143         if (ha->eft)
3144                 qla2x00_disable_eft_trace(vha);
3145 
3146         /* Stop currently executing firmware. */
3147         qla2x00_try_to_stop_firmware(vha);
3148 
3149         vha->flags.online = 0;
3150 
3151         /* turn-off interrupts on the card */
3152         if (ha->interrupts_on) {
3153                 vha->flags.init_done = 0;
3154                 ha->isp_ops->disable_intrs(ha);
3155         }
3156 
3157         qla2x00_free_irqs(vha);
3158 
3159         qla2x00_free_fcports(vha);
3160 
3161         qla2x00_mem_free(ha);
3162 
3163         qla82xx_md_free(vha);
3164 
3165         qla2x00_free_queues(ha);
3166 }
3167 
3168 void qla2x00_free_fcports(struct scsi_qla_host *vha)
3169 {
3170         fc_port_t *fcport, *tfcport;
3171 
3172         list_for_each_entry_safe(fcport, tfcport, &vha->vp_fcports, list) {
3173                 list_del(&fcport->list);
3174                 qla2x00_clear_loop_id(fcport);
3175                 kfree(fcport);
3176                 fcport = NULL;
3177         }
3178 }
3179 
3180 static inline void
3181 qla2x00_schedule_rport_del(struct scsi_qla_host *vha, fc_port_t *fcport,
3182     int defer)
3183 {
3184         struct fc_rport *rport;
3185         scsi_qla_host_t *base_vha;
3186         unsigned long flags;
3187 
3188         if (!fcport->rport)
3189                 return;
3190 
3191         rport = fcport->rport;
3192         if (defer) {
3193                 base_vha = pci_get_drvdata(vha->hw->pdev);
3194                 spin_lock_irqsave(vha->host->host_lock, flags);
3195                 fcport->drport = rport;
3196                 spin_unlock_irqrestore(vha->host->host_lock, flags);
3197                 set_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
3198                 qla2xxx_wake_dpc(base_vha);
3199         } else {
3200                 fc_remote_port_delete(rport);
3201                 qlt_fc_port_deleted(vha, fcport);
3202         }
3203 }
3204 
3205 /*
3206  * qla2x00_mark_device_lost Updates fcport state when device goes offline.
3207  *
3208  * Input: ha = adapter block pointer.  fcport = port structure pointer.
3209  *
3210  * Return: None.
3211  *
3212  * Context:
3213  */
3214 void qla2x00_mark_device_lost(scsi_qla_host_t *vha, fc_port_t *fcport,
3215     int do_login, int defer)
3216 {
3217         if (IS_QLAFX00(vha->hw)) {
3218                 qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
3219                 qla2x00_schedule_rport_del(vha, fcport, defer);
3220                 return;
3221         }
3222 
3223         if (atomic_read(&fcport->state) == FCS_ONLINE &&
3224             vha->vp_idx == fcport->vha->vp_idx) {
3225                 qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
3226                 qla2x00_schedule_rport_del(vha, fcport, defer);
3227         }
3228         /*
3229          * We may need to retry the login, so don't change the state of the
3230          * port but do the retries.
3231          */
3232         if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
3233                 qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
3234 
3235         if (!do_login)
3236                 return;
3237 
3238         if (fcport->login_retry == 0) {
3239                 fcport->login_retry = vha->hw->login_retry_count;
3240                 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
3241 
3242                 ql_dbg(ql_dbg_disc, vha, 0x2067,
3243                     "Port login retry %8phN, id = 0x%04x retry cnt=%d.\n",
3244                     fcport->port_name, fcport->loop_id, fcport->login_retry);
3245         }
3246 }
3247 
3248 /*
3249  * qla2x00_mark_all_devices_lost
3250  *      Updates fcport state when device goes offline.
3251  *
3252  * Input:
3253  *      ha = adapter block pointer.
3254  *      fcport = port structure pointer.
3255  *
3256  * Return:
3257  *      None.
3258  *
3259  * Context:
3260  */
3261 void
3262 qla2x00_mark_all_devices_lost(scsi_qla_host_t *vha, int defer)
3263 {
3264         fc_port_t *fcport;
3265 
3266         list_for_each_entry(fcport, &vha->vp_fcports, list) {
3267                 if (vha->vp_idx != 0 && vha->vp_idx != fcport->vha->vp_idx)
3268                         continue;
3269 
3270                 /*
3271                  * No point in marking the device as lost, if the device is
3272                  * already DEAD.
3273                  */
3274                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
3275                         continue;
3276                 if (atomic_read(&fcport->state) == FCS_ONLINE) {
3277                         qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
3278                         if (defer)
3279                                 qla2x00_schedule_rport_del(vha, fcport, defer);
3280                         else if (vha->vp_idx == fcport->vha->vp_idx)
3281                                 qla2x00_schedule_rport_del(vha, fcport, defer);
3282                 }
3283         }
3284 }
3285 
3286 /*
3287 * qla2x00_mem_alloc
3288 *      Allocates adapter memory.
3289 *
3290 * Returns:
3291 *      0  = success.
3292 *      !0  = failure.
3293 */
3294 static int
3295 qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len,
3296         struct req_que **req, struct rsp_que **rsp)
3297 {
3298         char    name[16];
3299 
3300         ha->init_cb = dma_alloc_coherent(&ha->pdev->dev, ha->init_cb_size,
3301                 &ha->init_cb_dma, GFP_KERNEL);
3302         if (!ha->init_cb)
3303                 goto fail;
3304 
3305         if (qlt_mem_alloc(ha) < 0)
3306                 goto fail_free_init_cb;
3307 
3308         ha->gid_list = dma_alloc_coherent(&ha->pdev->dev,
3309                 qla2x00_gid_list_size(ha), &ha->gid_list_dma, GFP_KERNEL);
3310         if (!ha->gid_list)
3311                 goto fail_free_tgt_mem;
3312 
3313         ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
3314         if (!ha->srb_mempool)
3315                 goto fail_free_gid_list;
3316 
3317         if (IS_P3P_TYPE(ha)) {
3318                 /* Allocate cache for CT6 Ctx. */
3319                 if (!ctx_cachep) {
3320                         ctx_cachep = kmem_cache_create("qla2xxx_ctx",
3321                                 sizeof(struct ct6_dsd), 0,
3322                                 SLAB_HWCACHE_ALIGN, NULL);
3323                         if (!ctx_cachep)
3324                                 goto fail_free_gid_list;
3325                 }
3326                 ha->ctx_mempool = mempool_create_slab_pool(SRB_MIN_REQ,
3327                         ctx_cachep);
3328                 if (!ha->ctx_mempool)
3329                         goto fail_free_srb_mempool;
3330                 ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0021,
3331                     "ctx_cachep=%p ctx_mempool=%p.\n",
3332                     ctx_cachep, ha->ctx_mempool);
3333         }
3334 
3335         /* Get memory for cached NVRAM */
3336         ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
3337         if (!ha->nvram)
3338                 goto fail_free_ctx_mempool;
3339 
3340         snprintf(name, sizeof(name), "%s_%d", QLA2XXX_DRIVER_NAME,
3341                 ha->pdev->device);
3342         ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
3343                 DMA_POOL_SIZE, 8, 0);
3344         if (!ha->s_dma_pool)
3345                 goto fail_free_nvram;
3346 
3347         ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0022,
3348             "init_cb=%p gid_list=%p, srb_mempool=%p s_dma_pool=%p.\n",
3349             ha->init_cb, ha->gid_list, ha->srb_mempool, ha->s_dma_pool);
3350 
3351         if (IS_P3P_TYPE(ha) || ql2xenabledif) {
3352                 ha->dl_dma_pool = dma_pool_create(name, &ha->pdev->dev,
3353                         DSD_LIST_DMA_POOL_SIZE, 8, 0);
3354                 if (!ha->dl_dma_pool) {
3355                         ql_log_pci(ql_log_fatal, ha->pdev, 0x0023,
3356                             "Failed to allocate memory for dl_dma_pool.\n");
3357                         goto fail_s_dma_pool;
3358                 }
3359 
3360                 ha->fcp_cmnd_dma_pool = dma_pool_create(name, &ha->pdev->dev,
3361                         FCP_CMND_DMA_POOL_SIZE, 8, 0);
3362                 if (!ha->fcp_cmnd_dma_pool) {
3363                         ql_log_pci(ql_log_fatal, ha->pdev, 0x0024,
3364                             "Failed to allocate memory for fcp_cmnd_dma_pool.\n");
3365                         goto fail_dl_dma_pool;
3366                 }
3367                 ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0025,
3368                     "dl_dma_pool=%p fcp_cmnd_dma_pool=%p.\n",
3369                     ha->dl_dma_pool, ha->fcp_cmnd_dma_pool);
3370         }
3371 
3372         /* Allocate memory for SNS commands */
3373         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
3374         /* Get consistent memory allocated for SNS commands */
3375                 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
3376                 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, GFP_KERNEL);
3377                 if (!ha->sns_cmd)
3378                         goto fail_dma_pool;
3379                 ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0026,
3380                     "sns_cmd: %p.\n", ha->sns_cmd);
3381         } else {
3382         /* Get consistent memory allocated for MS IOCB */
3383                 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
3384                         &ha->ms_iocb_dma);
3385                 if (!ha->ms_iocb)
3386                         goto fail_dma_pool;
3387         /* Get consistent memory allocated for CT SNS commands */
3388                 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
3389                         sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, GFP_KERNEL);
3390                 if (!ha->ct_sns)
3391                         goto fail_free_ms_iocb;
3392                 ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0027,
3393                     "ms_iocb=%p ct_sns=%p.\n",
3394                     ha->ms_iocb, ha->ct_sns);
3395         }
3396 
3397         /* Allocate memory for request ring */
3398         *req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
3399         if (!*req) {
3400                 ql_log_pci(ql_log_fatal, ha->pdev, 0x0028,
3401                     "Failed to allocate memory for req.\n");
3402                 goto fail_req;
3403         }
3404         (*req)->length = req_len;
3405         (*req)->ring = dma_alloc_coherent(&ha->pdev->dev,
3406                 ((*req)->length + 1) * sizeof(request_t),
3407                 &(*req)->dma, GFP_KERNEL);
3408         if (!(*req)->ring) {
3409                 ql_log_pci(ql_log_fatal, ha->pdev, 0x0029,
3410                     "Failed to allocate memory for req_ring.\n");
3411                 goto fail_req_ring;
3412         }
3413         /* Allocate memory for response ring */
3414         *rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
3415         if (!*rsp) {
3416                 ql_log_pci(ql_log_fatal, ha->pdev, 0x002a,
3417                     "Failed to allocate memory for rsp.\n");
3418                 goto fail_rsp;
3419         }
3420         (*rsp)->hw = ha;
3421         (*rsp)->length = rsp_len;
3422         (*rsp)->ring = dma_alloc_coherent(&ha->pdev->dev,
3423                 ((*rsp)->length + 1) * sizeof(response_t),
3424                 &(*rsp)->dma, GFP_KERNEL);
3425         if (!(*rsp)->ring) {
3426                 ql_log_pci(ql_log_fatal, ha->pdev, 0x002b,
3427                     "Failed to allocate memory for rsp_ring.\n");
3428                 goto fail_rsp_ring;
3429         }
3430         (*req)->rsp = *rsp;
3431         (*rsp)->req = *req;
3432         ql_dbg_pci(ql_dbg_init, ha->pdev, 0x002c,
3433             "req=%p req->length=%d req->ring=%p rsp=%p "
3434             "rsp->length=%d rsp->ring=%p.\n",
3435             *req, (*req)->length, (*req)->ring, *rsp, (*rsp)->length,
3436             (*rsp)->ring);
3437         /* Allocate memory for NVRAM data for vports */
3438         if (ha->nvram_npiv_size) {
3439                 ha->npiv_info = kzalloc(sizeof(struct qla_npiv_entry) *
3440                     ha->nvram_npiv_size, GFP_KERNEL);
3441                 if (!ha->npiv_info) {
3442                         ql_log_pci(ql_log_fatal, ha->pdev, 0x002d,
3443                             "Failed to allocate memory for npiv_info.\n");
3444                         goto fail_npiv_info;
3445                 }
3446         } else
3447                 ha->npiv_info = NULL;
3448 
3449         /* Get consistent memory allocated for EX-INIT-CB. */
3450         if (IS_CNA_CAPABLE(ha) || IS_QLA2031(ha)) {
3451                 ha->ex_init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
3452                     &ha->ex_init_cb_dma);
3453                 if (!ha->ex_init_cb)
3454                         goto fail_ex_init_cb;
3455                 ql_dbg_pci(ql_dbg_init, ha->pdev, 0x002e,
3456                     "ex_init_cb=%p.\n", ha->ex_init_cb);
3457         }
3458 
3459         INIT_LIST_HEAD(&ha->gbl_dsd_list);
3460 
3461         /* Get consistent memory allocated for Async Port-Database. */
3462         if (!IS_FWI2_CAPABLE(ha)) {
3463                 ha->async_pd = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
3464                         &ha->async_pd_dma);
3465                 if (!ha->async_pd)
3466                         goto fail_async_pd;
3467                 ql_dbg_pci(ql_dbg_init, ha->pdev, 0x002f,
3468                     "async_pd=%p.\n", ha->async_pd);
3469         }
3470 
3471         INIT_LIST_HEAD(&ha->vp_list);
3472 
3473         /* Allocate memory for our loop_id bitmap */
3474         ha->loop_id_map = kzalloc(BITS_TO_LONGS(LOOPID_MAP_SIZE) * sizeof(long),
3475             GFP_KERNEL);
3476         if (!ha->loop_id_map)
3477                 goto fail_async_pd;
3478         else {
3479                 qla2x00_set_reserved_loop_ids(ha);
3480                 ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0123,
3481                     "loop_id_map=%p. \n", ha->loop_id_map);
3482         }
3483 
3484         return 1;
3485 
3486 fail_async_pd:
3487         dma_pool_free(ha->s_dma_pool, ha->ex_init_cb, ha->ex_init_cb_dma);
3488 fail_ex_init_cb:
3489         kfree(ha->npiv_info);
3490 fail_npiv_info:
3491         dma_free_coherent(&ha->pdev->dev, ((*rsp)->length + 1) *
3492                 sizeof(response_t), (*rsp)->ring, (*rsp)->dma);
3493         (*rsp)->ring = NULL;
3494         (*rsp)->dma = 0;
3495 fail_rsp_ring:
3496         kfree(*rsp);
3497 fail_rsp:
3498         dma_free_coherent(&ha->pdev->dev, ((*req)->length + 1) *
3499                 sizeof(request_t), (*req)->ring, (*req)->dma);
3500         (*req)->ring = NULL;
3501         (*req)->dma = 0;
3502 fail_req_ring:
3503         kfree(*req);
3504 fail_req:
3505         dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
3506                 ha->ct_sns, ha->ct_sns_dma);
3507         ha->ct_sns = NULL;
3508         ha->ct_sns_dma = 0;
3509 fail_free_ms_iocb:
3510         dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
3511         ha->ms_iocb = NULL;
3512         ha->ms_iocb_dma = 0;
3513 fail_dma_pool:
3514         if (IS_QLA82XX(ha) || ql2xenabledif) {
3515                 dma_pool_destroy(ha->fcp_cmnd_dma_pool);
3516                 ha->fcp_cmnd_dma_pool = NULL;
3517         }
3518 fail_dl_dma_pool:
3519         if (IS_QLA82XX(ha) || ql2xenabledif) {
3520                 dma_pool_destroy(ha->dl_dma_pool);
3521                 ha->dl_dma_pool = NULL;
3522         }
3523 fail_s_dma_pool:
3524         dma_pool_destroy(ha->s_dma_pool);
3525         ha->s_dma_pool = NULL;
3526 fail_free_nvram:
3527         kfree(ha->nvram);
3528         ha->nvram = NULL;
3529 fail_free_ctx_mempool:
3530         mempool_destroy(ha->ctx_mempool);
3531         ha->ctx_mempool = NULL;
3532 fail_free_srb_mempool:
3533         mempool_destroy(ha->srb_mempool);
3534         ha->srb_mempool = NULL;
3535 fail_free_gid_list:
3536         dma_free_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha),
3537         ha->gid_list,
3538         ha->gid_list_dma);
3539         ha->gid_list = NULL;
3540         ha->gid_list_dma = 0;
3541 fail_free_tgt_mem:
3542         qlt_mem_free(ha);
3543 fail_free_init_cb:
3544         dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb,
3545         ha->init_cb_dma);
3546         ha->init_cb = NULL;
3547         ha->init_cb_dma = 0;
3548 fail:
3549         ql_log(ql_log_fatal, NULL, 0x0030,
3550             "Memory allocation failure.\n");
3551         return -ENOMEM;
3552 }
3553 
3554 /*
3555 * qla2x00_free_fw_dump
3556 *       Frees fw dump stuff.
3557 *
3558 * Input:
3559 *       ha = adapter block pointer
3560 */
3561 static void
3562 qla2x00_free_fw_dump(struct qla_hw_data *ha)
3563 {
3564         if (ha->fce)
3565                 dma_free_coherent(&ha->pdev->dev, FCE_SIZE, ha->fce,
3566                     ha->fce_dma);
3567 
3568         if (ha->fw_dump) {
3569                 if (ha->eft)
3570                         dma_free_coherent(&ha->pdev->dev,
3571                             ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
3572                 vfree(ha->fw_dump);
3573         }
3574         ha->fce = NULL;
3575         ha->fce_dma = 0;
3576         ha->eft = NULL;
3577         ha->eft_dma = 0;
3578         ha->fw_dump = NULL;
3579         ha->fw_dumped = 0;
3580         ha->fw_dump_reading = 0;
3581 }
3582 
3583 /*
3584 * qla2x00_mem_free
3585 *      Frees all adapter allocated memory.
3586 *
3587 * Input:
3588 *      ha = adapter block pointer.
3589 */
3590 static void
3591 qla2x00_mem_free(struct qla_hw_data *ha)
3592 {
3593         qla2x00_free_fw_dump(ha);
3594 
3595         if (ha->mctp_dump)
3596                 dma_free_coherent(&ha->pdev->dev, MCTP_DUMP_SIZE, ha->mctp_dump,
3597                     ha->mctp_dump_dma);
3598 
3599         if (ha->srb_mempool)
3600                 mempool_destroy(ha->srb_mempool);
3601 
3602         if (ha->dcbx_tlv)
3603                 dma_free_coherent(&ha->pdev->dev, DCBX_TLV_DATA_SIZE,
3604                     ha->dcbx_tlv, ha->dcbx_tlv_dma);
3605 
3606         if (ha->xgmac_data)
3607                 dma_free_coherent(&ha->pdev->dev, XGMAC_DATA_SIZE,
3608                     ha->xgmac_data, ha->xgmac_data_dma);
3609 
3610         if (ha->sns_cmd)
3611                 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
3612                 ha->sns_cmd, ha->sns_cmd_dma);
3613 
3614         if (ha->ct_sns)
3615                 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
3616                 ha->ct_sns, ha->ct_sns_dma);
3617 
3618         if (ha->sfp_data)
3619                 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
3620 
3621         if (ha->ms_iocb)
3622                 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
3623 
3624         if (ha->ex_init_cb)
3625                 dma_pool_free(ha->s_dma_pool,
3626                         ha->ex_init_cb, ha->ex_init_cb_dma);
3627 
3628         if (ha->async_pd)
3629                 dma_pool_free(ha->s_dma_pool, ha->async_pd, ha->async_pd_dma);
3630 
3631         if (ha->s_dma_pool)
3632                 dma_pool_destroy(ha->s_dma_pool);
3633 
3634         if (ha->gid_list)
3635                 dma_free_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha),
3636                 ha->gid_list, ha->gid_list_dma);
3637 
3638         if (IS_QLA82XX(ha)) {
3639                 if (!list_empty(&ha->gbl_dsd_list)) {
3640                         struct dsd_dma *dsd_ptr, *tdsd_ptr;
3641 
3642                         /* clean up allocated prev pool */
3643                         list_for_each_entry_safe(dsd_ptr,
3644                                 tdsd_ptr, &ha->gbl_dsd_list, list) {
3645                                 dma_pool_free(ha->dl_dma_pool,
3646                                 dsd_ptr->dsd_addr, dsd_ptr->dsd_list_dma);
3647                                 list_del(&dsd_ptr->list);
3648                                 kfree(dsd_ptr);
3649                         }
3650                 }
3651         }
3652 
3653         if (ha->dl_dma_pool)
3654                 dma_pool_destroy(ha->dl_dma_pool);
3655 
3656         if (ha->fcp_cmnd_dma_pool)
3657                 dma_pool_destroy(ha->fcp_cmnd_dma_pool);
3658 
3659         if (ha->ctx_mempool)
3660                 mempool_destroy(ha->ctx_mempool);
3661 
3662         qlt_mem_free(ha);
3663 
3664         if (ha->init_cb)
3665                 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
3666                         ha->init_cb, ha->init_cb_dma);
3667         vfree(ha->optrom_buffer);
3668         kfree(ha->nvram);
3669         kfree(ha->npiv_info);
3670         kfree(ha->swl);
3671         kfree(ha->loop_id_map);
3672 
3673         ha->srb_mempool = NULL;
3674         ha->ctx_mempool = NULL;
3675         ha->sns_cmd = NULL;
3676         ha->sns_cmd_dma = 0;
3677         ha->ct_sns = NULL;
3678         ha->ct_sns_dma = 0;
3679         ha->ms_iocb = NULL;
3680         ha->ms_iocb_dma = 0;
3681         ha->init_cb = NULL;
3682         ha->init_cb_dma = 0;
3683         ha->ex_init_cb = NULL;
3684         ha->ex_init_cb_dma = 0;
3685         ha->async_pd = NULL;
3686         ha->async_pd_dma = 0;
3687 
3688         ha->s_dma_pool = NULL;
3689         ha->dl_dma_pool = NULL;
3690         ha->fcp_cmnd_dma_pool = NULL;
3691 
3692         ha->gid_list = NULL;
3693         ha->gid_list_dma = 0;
3694 
3695         ha->tgt.atio_ring = NULL;
3696         ha->tgt.atio_dma = 0;
3697         ha->tgt.tgt_vp_map = NULL;
3698 }
3699 
3700 struct scsi_qla_host *qla2x00_create_host(struct scsi_host_template *sht,
3701                                                 struct qla_hw_data *ha)
3702 {
3703         struct Scsi_Host *host;
3704         struct scsi_qla_host *vha = NULL;
3705 
3706         host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
3707         if (host == NULL) {
3708                 ql_log_pci(ql_log_fatal, ha->pdev, 0x0107,
3709                     "Failed to allocate host from the scsi layer, aborting.\n");
3710                 goto fail;
3711         }
3712 
3713         /* Clear our data area */
3714         vha = shost_priv(host);
3715         memset(vha, 0, sizeof(scsi_qla_host_t));
3716 
3717         vha->host = host;
3718         vha->host_no = host->host_no;
3719         vha->hw = ha;
3720 
3721         INIT_LIST_HEAD(&vha->vp_fcports);
3722         INIT_LIST_HEAD(&vha->work_list);
3723         INIT_LIST_HEAD(&vha->list);
3724 
3725         spin_lock_init(&vha->work_lock);
3726 
3727         sprintf(vha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, vha->host_no);
3728         ql_dbg(ql_dbg_init, vha, 0x0041,
3729             "Allocated the host=%p hw=%p vha=%p dev_name=%s",
3730             vha->host, vha->hw, vha,
3731             dev_name(&(ha->pdev->dev)));
3732 
3733         return vha;
3734 
3735 fail:
3736         return vha;
3737 }
3738 
3739 static struct qla_work_evt *
3740 qla2x00_alloc_work(struct scsi_qla_host *vha, enum qla_work_type type)
3741 {
3742         struct qla_work_evt *e;
3743         uint8_t bail;
3744 
3745         QLA_VHA_MARK_BUSY(vha, bail);
3746         if (bail)
3747                 return NULL;
3748 
3749         e = kzalloc(sizeof(struct qla_work_evt), GFP_ATOMIC);
3750         if (!e) {
3751                 QLA_VHA_MARK_NOT_BUSY(vha);
3752                 return NULL;
3753         }
3754 
3755         INIT_LIST_HEAD(&e->list);
3756         e->type = type;
3757         e->flags = QLA_EVT_FLAG_FREE;
3758         return e;
3759 }
3760 
3761 static int
3762 qla2x00_post_work(struct scsi_qla_host *vha, struct qla_work_evt *e)
3763 {
3764         unsigned long flags;
3765 
3766         spin_lock_irqsave(&vha->work_lock, flags);
3767         list_add_tail(&e->list, &vha->work_list);
3768         spin_unlock_irqrestore(&vha->work_lock, flags);
3769         qla2xxx_wake_dpc(vha);
3770 
3771         return QLA_SUCCESS;
3772 }
3773 
3774 int
3775 qla2x00_post_aen_work(struct scsi_qla_host *vha, enum fc_host_event_code code,
3776     u32 data)
3777 {
3778         struct qla_work_evt *e;
3779 
3780         e = qla2x00_alloc_work(vha, QLA_EVT_AEN);
3781         if (!e)
3782                 return QLA_FUNCTION_FAILED;
3783 
3784         e->u.aen.code = code;
3785         e->u.aen.data = data;
3786         return qla2x00_post_work(vha, e);
3787 }
3788 
3789 int
3790 qla2x00_post_idc_ack_work(struct scsi_qla_host *vha, uint16_t *mb)
3791 {
3792         struct qla_work_evt *e;
3793 
3794         e = qla2x00_alloc_work(vha, QLA_EVT_IDC_ACK);
3795         if (!e)
3796                 return QLA_FUNCTION_FAILED;
3797 
3798         memcpy(e->u.idc_ack.mb, mb, QLA_IDC_ACK_REGS * sizeof(uint16_t));
3799         return qla2x00_post_work(vha, e);
3800 }
3801 
3802 #define qla2x00_post_async_work(name, type)     \
3803 int qla2x00_post_async_##name##_work(           \
3804     struct scsi_qla_host *vha,                  \
3805     fc_port_t *fcport, uint16_t *data)          \
3806 {                                               \
3807         struct qla_work_evt *e;                 \
3808                                                 \
3809         e = qla2x00_alloc_work(vha, type);      \
3810         if (!e)                                 \
3811                 return QLA_FUNCTION_FAILED;     \
3812                                                 \
3813         e->u.logio.fcport = fcport;             \
3814         if (data) {                             \
3815                 e->u.logio.data[0] = data[0];   \
3816                 e->u.logio.data[1] = data[1];   \
3817         }                                       \
3818         return qla2x00_post_work(vha, e);       \
3819 }
3820 
3821 qla2x00_post_async_work(login, QLA_EVT_ASYNC_LOGIN);
3822 qla2x00_post_async_work(login_done, QLA_EVT_ASYNC_LOGIN_DONE);
3823 qla2x00_post_async_work(logout, QLA_EVT_ASYNC_LOGOUT);
3824 qla2x00_post_async_work(logout_done, QLA_EVT_ASYNC_LOGOUT_DONE);
3825 qla2x00_post_async_work(adisc, QLA_EVT_ASYNC_ADISC);
3826 qla2x00_post_async_work(adisc_done, QLA_EVT_ASYNC_ADISC_DONE);
3827 
3828 int
3829 qla2x00_post_uevent_work(struct scsi_qla_host *vha, u32 code)
3830 {
3831         struct qla_work_evt *e;
3832 
3833         e = qla2x00_alloc_work(vha, QLA_EVT_UEVENT);
3834         if (!e)
3835                 return QLA_FUNCTION_FAILED;
3836 
3837         e->u.uevent.code = code;
3838         return qla2x00_post_work(vha, e);
3839 }
3840 
3841 static void
3842 qla2x00_uevent_emit(struct scsi_qla_host *vha, u32 code)
3843 {
3844         char event_string[40];
3845         char *envp[] = { event_string, NULL };
3846 
3847         switch (code) {
3848         case QLA_UEVENT_CODE_FW_DUMP:
3849                 snprintf(event_string, sizeof(event_string), "FW_DUMP=%ld",
3850                     vha->host_no);
3851                 break;
3852         default:
3853                 /* do nothing */
3854                 break;
3855         }
3856         kobject_uevent_env(&vha->hw->pdev->dev.kobj, KOBJ_CHANGE, envp);
3857 }
3858 
3859 int
3860 qlafx00_post_aenfx_work(struct scsi_qla_host *vha,  uint32_t evtcode,
3861                         uint32_t *data, int cnt)
3862 {
3863         struct qla_work_evt *e;
3864 
3865         e = qla2x00_alloc_work(vha, QLA_EVT_AENFX);
3866         if (!e)
3867                 return QLA_FUNCTION_FAILED;
3868 
3869         e->u.aenfx.evtcode = evtcode;
3870         e->u.aenfx.count = cnt;
3871         memcpy(e->u.aenfx.mbx, data, sizeof(*data) * cnt);
3872         return qla2x00_post_work(vha, e);
3873 }
3874 
3875 void
3876 qla2x00_do_work(struct scsi_qla_host *vha)
3877 {
3878         struct qla_work_evt *e, *tmp;
3879         unsigned long flags;
3880         LIST_HEAD(work);
3881 
3882         spin_lock_irqsave(&vha->work_lock, flags);
3883         list_splice_init(&vha->work_list, &work);
3884         spin_unlock_irqrestore(&vha->work_lock, flags);
3885 
3886         list_for_each_entry_safe(e, tmp, &work, list) {
3887                 list_del_init(&e->list);
3888 
3889                 switch (e->type) {
3890                 case QLA_EVT_AEN:
3891                         fc_host_post_event(vha->host, fc_get_event_number(),
3892                             e->u.aen.code, e->u.aen.data);
3893                         break;
3894                 case QLA_EVT_IDC_ACK:
3895                         qla81xx_idc_ack(vha, e->u.idc_ack.mb);
3896                         break;
3897                 case QLA_EVT_ASYNC_LOGIN:
3898                         qla2x00_async_login(vha, e->u.logio.fcport,
3899                             e->u.logio.data);
3900                         break;
3901                 case QLA_EVT_ASYNC_LOGIN_DONE:
3902                         qla2x00_async_login_done(vha, e->u.logio.fcport,
3903                             e->u.logio.data);
3904                         break;
3905                 case QLA_EVT_ASYNC_LOGOUT:
3906                         qla2x00_async_logout(vha, e->u.logio.fcport);
3907                         break;
3908                 case QLA_EVT_ASYNC_LOGOUT_DONE:
3909                         qla2x00_async_logout_done(vha, e->u.logio.fcport,
3910                             e->u.logio.data);
3911                         break;
3912                 case QLA_EVT_ASYNC_ADISC:
3913                         qla2x00_async_adisc(vha, e->u.logio.fcport,
3914                             e->u.logio.data);
3915                         break;
3916                 case QLA_EVT_ASYNC_ADISC_DONE:
3917                         qla2x00_async_adisc_done(vha, e->u.logio.fcport,
3918                             e->u.logio.data);
3919                         break;
3920                 case QLA_EVT_UEVENT:
3921                         qla2x00_uevent_emit(vha, e->u.uevent.code);
3922                         break;
3923                 case QLA_EVT_AENFX:
3924                         qlafx00_process_aen(vha, e);
3925                         break;
3926                 }
3927                 if (e->flags & QLA_EVT_FLAG_FREE)
3928                         kfree(e);
3929 
3930                 /* For each work completed decrement vha ref count */
3931                 QLA_VHA_MARK_NOT_BUSY(vha);
3932         }
3933 }
3934 
3935 /* Relogins all the fcports of a vport
3936  * Context: dpc thread
3937  */
3938 void qla2x00_relogin(struct scsi_qla_host *vha)
3939 {
3940         fc_port_t       *fcport;
3941         int status;
3942         uint16_t        next_loopid = 0;
3943         struct qla_hw_data *ha = vha->hw;
3944         uint16_t data[2];
3945 
3946         list_for_each_entry(fcport, &vha->vp_fcports, list) {
3947         /*
3948          * If the port is not ONLINE then try to login
3949          * to it if we haven't run out of retries.
3950          */
3951                 if (atomic_read(&fcport->state) != FCS_ONLINE &&
3952                     fcport->login_retry && !(fcport->flags & FCF_ASYNC_SENT)) {
3953                         fcport->login_retry--;
3954                         if (fcport->flags & FCF_FABRIC_DEVICE) {
3955                                 if (fcport->flags & FCF_FCP2_DEVICE)
3956                                         ha->isp_ops->fabric_logout(vha,
3957                                                         fcport->loop_id,
3958                                                         fcport->d_id.b.domain,
3959                                                         fcport->d_id.b.area,
3960                                                         fcport->d_id.b.al_pa);
3961 
3962                                 if (fcport->loop_id == FC_NO_LOOP_ID) {
3963                                         fcport->loop_id = next_loopid =
3964                                             ha->min_external_loopid;
3965                                         status = qla2x00_find_new_loop_id(
3966                                             vha, fcport);
3967                                         if (status != QLA_SUCCESS) {
3968                                                 /* Ran out of IDs to use */
3969                                                 break;
3970                                         }
3971                                 }
3972 
3973                                 if (IS_ALOGIO_CAPABLE(ha)) {
3974                                         fcport->flags |= FCF_ASYNC_SENT;
3975                                         data[0] = 0;
3976                                         data[1] = QLA_LOGIO_LOGIN_RETRIED;
3977                                         status = qla2x00_post_async_login_work(
3978                                             vha, fcport, data);
3979                                         if (status == QLA_SUCCESS)
3980                                                 continue;
3981                                         /* Attempt a retry. */
3982                                         status = 1;
3983                                 } else {
3984                                         status = qla2x00_fabric_login(vha,
3985                                             fcport, &next_loopid);
3986                                         if (status ==  QLA_SUCCESS) {
3987                                                 int status2;
3988                                                 uint8_t opts;
3989 
3990                                                 opts = 0;
3991                                                 if (fcport->flags &
3992                                                     FCF_FCP2_DEVICE)
3993                                                         opts |= BIT_1;
3994                                                 status2 =
3995                                                     qla2x00_get_port_database(
3996                                                         vha, fcport, opts);
3997                                                 if (status2 != QLA_SUCCESS)
3998                                                         status = 1;
3999                                         }
4000                                 }
4001                         } else
4002                                 status = qla2x00_local_device_login(vha,
4003                                                                 fcport);
4004 
4005                         if (status == QLA_SUCCESS) {
4006                                 fcport->old_loop_id = fcport->loop_id;
4007 
4008                                 ql_dbg(ql_dbg_disc, vha, 0x2003,
4009                                     "Port login OK: logged in ID 0x%x.\n",
4010                                     fcport->loop_id);
4011 
4012                                 qla2x00_update_fcport(vha, fcport);
4013 
4014                         } else if (status == 1) {
4015                                 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
4016                                 /* retry the login again */
4017                                 ql_dbg(ql_dbg_disc, vha, 0x2007,
4018                                     "Retrying %d login again loop_id 0x%x.\n",
4019                                     fcport->login_retry, fcport->loop_id);
4020                         } else {
4021                                 fcport->login_retry = 0;
4022                         }
4023 
4024                         if (fcport->login_retry == 0 && status != QLA_SUCCESS)
4025                                 qla2x00_clear_loop_id(fcport);
4026                 }
4027                 if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
4028                         break;
4029         }
4030 }
4031 
4032 /* Schedule work on any of the dpc-workqueues */
4033 void
4034 qla83xx_schedule_work(scsi_qla_host_t *base_vha, int work_code)
4035 {
4036         struct qla_hw_data *ha = base_vha->hw;
4037 
4038         switch (work_code) {
4039         case MBA_IDC_AEN: /* 0x8200 */
4040                 if (ha->dpc_lp_wq)
4041                         queue_work(ha->dpc_lp_wq, &ha->idc_aen);
4042                 break;
4043 
4044         case QLA83XX_NIC_CORE_RESET: /* 0x1 */
4045                 if (!ha->flags.nic_core_reset_hdlr_active) {
4046                         if (ha->dpc_hp_wq)
4047                                 queue_work(ha->dpc_hp_wq, &ha->nic_core_reset);
4048                 } else
4049                         ql_dbg(ql_dbg_p3p, base_vha, 0xb05e,
4050                             "NIC Core reset is already active. Skip "
4051                             "scheduling it again.\n");
4052                 break;
4053         case QLA83XX_IDC_STATE_HANDLER: /* 0x2 */
4054                 if (ha->dpc_hp_wq)
4055                         queue_work(ha->dpc_hp_wq, &ha->idc_state_handler);
4056                 break;
4057         case QLA83XX_NIC_CORE_UNRECOVERABLE: /* 0x3 */
4058                 if (ha->dpc_hp_wq)
4059                         queue_work(ha->dpc_hp_wq, &ha->nic_core_unrecoverable);
4060                 break;
4061         default:
4062                 ql_log(ql_log_warn, base_vha, 0xb05f,
4063                     "Unknow work-code=0x%x.\n", work_code);
4064         }
4065 
4066         return;
4067 }
4068 
4069 /* Work: Perform NIC Core Unrecoverable state handling */
4070 void
4071 qla83xx_nic_core_unrecoverable_work(struct work_struct *work)
4072 {
4073         struct qla_hw_data *ha =
4074                 container_of(work, struct qla_hw_data, nic_core_unrecoverable);
4075         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
4076         uint32_t dev_state = 0;
4077 
4078         qla83xx_idc_lock(base_vha, 0);
4079         qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE, &dev_state);
4080         qla83xx_reset_ownership(base_vha);
4081         if (ha->flags.nic_core_reset_owner) {
4082                 ha->flags.nic_core_reset_owner = 0;
4083                 qla83xx_wr_reg(base_vha, QLA83XX_IDC_DEV_STATE,
4084                     QLA8XXX_DEV_FAILED);
4085                 ql_log(ql_log_info, base_vha, 0xb060, "HW State: FAILED.\n");
4086                 qla83xx_schedule_work(base_vha, QLA83XX_IDC_STATE_HANDLER);
4087         }
4088         qla83xx_idc_unlock(base_vha, 0);
4089 }
4090 
4091 /* Work: Execute IDC state handler */
4092 void
4093 qla83xx_idc_state_handler_work(struct work_struct *work)
4094 {
4095         struct qla_hw_data *ha =
4096                 container_of(work, struct qla_hw_data, idc_state_handler);
4097         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
4098         uint32_t dev_state = 0;
4099 
4100         qla83xx_idc_lock(base_vha, 0);
4101         qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE, &dev_state);
4102         if (dev_state == QLA8XXX_DEV_FAILED ||
4103                         dev_state == QLA8XXX_DEV_NEED_QUIESCENT)
4104                 qla83xx_idc_state_handler(base_vha);
4105         qla83xx_idc_unlock(base_vha, 0);
4106 }
4107 
4108 static int
4109 qla83xx_check_nic_core_fw_alive(scsi_qla_host_t *base_vha)
4110 {
4111         int rval = QLA_SUCCESS;
4112         unsigned long heart_beat_wait = jiffies + (1 * HZ);
4113         uint32_t heart_beat_counter1, heart_beat_counter2;
4114 
4115         do {
4116                 if (time_after(jiffies, heart_beat_wait)) {
4117                         ql_dbg(ql_dbg_p3p, base_vha, 0xb07c,
4118                             "Nic Core f/w is not alive.\n");
4119                         rval = QLA_FUNCTION_FAILED;
4120                         break;
4121                 }
4122 
4123                 qla83xx_idc_lock(base_vha, 0);
4124                 qla83xx_rd_reg(base_vha, QLA83XX_FW_HEARTBEAT,
4125                     &heart_beat_counter1);
4126                 qla83xx_idc_unlock(base_vha, 0);
4127                 msleep(100);
4128                 qla83xx_idc_lock(base_vha, 0);
4129                 qla83xx_rd_reg(base_vha, QLA83XX_FW_HEARTBEAT,
4130                     &heart_beat_counter2);
4131                 qla83xx_idc_unlock(base_vha, 0);
4132         } while (heart_beat_counter1 == heart_beat_counter2);
4133 
4134         return rval;
4135 }
4136 
4137 /* Work: Perform NIC Core Reset handling */
4138 void
4139 qla83xx_nic_core_reset_work(struct work_struct *work)
4140 {
4141         struct qla_hw_data *ha =
4142                 container_of(work, struct qla_hw_data, nic_core_reset);
4143         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
4144         uint32_t dev_state = 0;
4145 
4146         if (IS_QLA2031(ha)) {
4147                 if (qla2xxx_mctp_dump(base_vha) != QLA_SUCCESS)
4148                         ql_log(ql_log_warn, base_vha, 0xb081,
4149                             "Failed to dump mctp\n");
4150                 return;
4151         }
4152 
4153         if (!ha->flags.nic_core_reset_hdlr_active) {
4154                 if (qla83xx_check_nic_core_fw_alive(base_vha) == QLA_SUCCESS) {
4155                         qla83xx_idc_lock(base_vha, 0);
4156                         qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE,
4157                             &dev_state);
4158                         qla83xx_idc_unlock(base_vha, 0);
4159                         if (dev_state != QLA8XXX_DEV_NEED_RESET) {
4160                                 ql_dbg(ql_dbg_p3p, base_vha, 0xb07a,
4161                                     "Nic Core f/w is alive.\n");
4162                                 return;
4163                         }
4164                 }
4165 
4166                 ha->flags.nic_core_reset_hdlr_active = 1;
4167                 if (qla83xx_nic_core_reset(base_vha)) {
4168                         /* NIC Core reset failed. */
4169                         ql_dbg(ql_dbg_p3p, base_vha, 0xb061,
4170                             "NIC Core reset failed.\n");
4171                 }
4172                 ha->flags.nic_core_reset_hdlr_active = 0;
4173         }
4174 }
4175 
4176 /* Work: Handle 8200 IDC aens */
4177 void
4178 qla83xx_service_idc_aen(struct work_struct *work)
4179 {
4180         struct qla_hw_data *ha =
4181                 container_of(work, struct qla_hw_data, idc_aen);
4182         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
4183         uint32_t dev_state, idc_control;
4184 
4185         qla83xx_idc_lock(base_vha, 0);
4186         qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE, &dev_state);
4187         qla83xx_rd_reg(base_vha, QLA83XX_IDC_CONTROL, &idc_control);
4188         qla83xx_idc_unlock(base_vha, 0);
4189         if (dev_state == QLA8XXX_DEV_NEED_RESET) {
4190                 if (idc_control & QLA83XX_IDC_GRACEFUL_RESET) {
4191                         ql_dbg(ql_dbg_p3p, base_vha, 0xb062,
4192                             "Application requested NIC Core Reset.\n");
4193                         qla83xx_schedule_work(base_vha, QLA83XX_NIC_CORE_RESET);
4194                 } else if (qla83xx_check_nic_core_fw_alive(base_vha) ==
4195                     QLA_SUCCESS) {
4196                         ql_dbg(ql_dbg_p3p, base_vha, 0xb07b,
4197                             "Other protocol driver requested NIC Core Reset.\n");
4198                         qla83xx_schedule_work(base_vha, QLA83XX_NIC_CORE_RESET);
4199                 }
4200         } else if (dev_state == QLA8XXX_DEV_FAILED ||
4201                         dev_state == QLA8XXX_DEV_NEED_QUIESCENT) {
4202                 qla83xx_schedule_work(base_vha, QLA83XX_IDC_STATE_HANDLER);
4203         }
4204 }
4205 
4206 static void
4207 qla83xx_wait_logic(void)
4208 {
4209         int i;
4210 
4211         /* Yield CPU */
4212         if (!in_interrupt()) {
4213                 /*
4214                  * Wait about 200ms before retrying again.
4215                  * This controls the number of retries for single
4216                  * lock operation.
4217                  */
4218                 msleep(100);
4219                 schedule();
4220         } else {
4221                 for (i = 0; i < 20; i++)
4222                         cpu_relax(); /* This a nop instr on i386 */
4223         }
4224 }
4225 
4226 static int
4227 qla83xx_force_lock_recovery(scsi_qla_host_t *base_vha)
4228 {
4229         int rval;
4230         uint32_t data;
4231         uint32_t idc_lck_rcvry_stage_mask = 0x3;
4232         uint32_t idc_lck_rcvry_owner_mask = 0x3c;
4233         struct qla_hw_data *ha = base_vha->hw;
4234         ql_dbg(ql_dbg_p3p, base_vha, 0xb086,
4235             "Trying force recovery of the IDC lock.\n");
4236 
4237         rval = qla83xx_rd_reg(base_vha, QLA83XX_IDC_LOCK_RECOVERY, &data);
4238         if (rval)
4239                 return rval;
4240 
4241         if ((data & idc_lck_rcvry_stage_mask) > 0) {
4242                 return QLA_SUCCESS;
4243         } else {
4244                 data = (IDC_LOCK_RECOVERY_STAGE1) | (ha->portnum << 2);
4245                 rval = qla83xx_wr_reg(base_vha, QLA83XX_IDC_LOCK_RECOVERY,
4246                     data);
4247                 if (rval)
4248                         return rval;
4249 
4250                 msleep(200);
4251 
4252                 rval = qla83xx_rd_reg(base_vha, QLA83XX_IDC_LOCK_RECOVERY,
4253                     &data);
4254                 if (rval)
4255                         return rval;
4256 
4257                 if (((data & idc_lck_rcvry_owner_mask) >> 2) == ha->portnum) {
4258                         data &= (IDC_LOCK_RECOVERY_STAGE2 |
4259                                         ~(idc_lck_rcvry_stage_mask));
4260                         rval = qla83xx_wr_reg(base_vha,
4261                             QLA83XX_IDC_LOCK_RECOVERY, data);
4262                         if (rval)
4263                                 return rval;
4264 
4265                         /* Forcefully perform IDC UnLock */
4266                         rval = qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_UNLOCK,
4267                             &data);
4268                         if (rval)
4269                                 return rval;
4270                         /* Clear lock-id by setting 0xff */
4271                         rval = qla83xx_wr_reg(base_vha, QLA83XX_DRIVER_LOCKID,
4272                             0xff);
4273                         if (rval)
4274                                 return rval;
4275                         /* Clear lock-recovery by setting 0x0 */
4276                         rval = qla83xx_wr_reg(base_vha,
4277                             QLA83XX_IDC_LOCK_RECOVERY, 0x0);
4278                         if (rval)
4279                                 return rval;
4280                 } else
4281                         return QLA_SUCCESS;
4282         }
4283 
4284         return rval;
4285 }
4286 
4287 static int
4288 qla83xx_idc_lock_recovery(scsi_qla_host_t *base_vha)
4289 {
4290         int rval = QLA_SUCCESS;
4291         uint32_t o_drv_lockid, n_drv_lockid;
4292         unsigned long lock_recovery_timeout;
4293 
4294         lock_recovery_timeout = jiffies + QLA83XX_MAX_LOCK_RECOVERY_WAIT;
4295 retry_lockid:
4296         rval = qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCKID, &o_drv_lockid);
4297         if (rval)
4298                 goto exit;
4299 
4300         /* MAX wait time before forcing IDC Lock recovery = 2 secs */
4301         if (time_after_eq(jiffies, lock_recovery_timeout)) {
4302                 if (qla83xx_force_lock_recovery(base_vha) == QLA_SUCCESS)
4303                         return QLA_SUCCESS;
4304                 else
4305                         return QLA_FUNCTION_FAILED;
4306         }
4307 
4308         rval = qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCKID, &n_drv_lockid);
4309         if (rval)
4310                 goto exit;
4311 
4312         if (o_drv_lockid == n_drv_lockid) {
4313                 qla83xx_wait_logic();
4314                 goto retry_lockid;
4315         } else
4316                 return QLA_SUCCESS;
4317 
4318 exit:
4319         return rval;
4320 }
4321 
4322 void
4323 qla83xx_idc_lock(scsi_qla_host_t *base_vha, uint16_t requester_id)
4324 {
4325         uint16_t options = (requester_id << 15) | BIT_6;
4326         uint32_t data;
4327         uint32_t lock_owner;
4328         struct qla_hw_data *ha = base_vha->hw;
4329 
4330         /* IDC-lock implementation using driver-lock/lock-id remote registers */
4331 retry_lock:
4332         if (qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCK, &data)
4333             == QLA_SUCCESS) {
4334                 if (data) {
4335                         /* Setting lock-id to our function-number */
4336                         qla83xx_wr_reg(base_vha, QLA83XX_DRIVER_LOCKID,
4337                             ha->portnum);
4338                 } else {
4339                         qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCKID,
4340                             &lock_owner);
4341                         ql_dbg(ql_dbg_p3p, base_vha, 0xb063,
4342                             "Failed to acquire IDC lock, acquired by %d, "
4343                             "retrying...\n", lock_owner);
4344 
4345                         /* Retry/Perform IDC-Lock recovery */
4346                         if (qla83xx_idc_lock_recovery(base_vha)
4347                             == QLA_SUCCESS) {
4348                                 qla83xx_wait_logic();
4349                                 goto retry_lock;
4350                         } else
4351                                 ql_log(ql_log_warn, base_vha, 0xb075,
4352                                     "IDC Lock recovery FAILED.\n");
4353                 }
4354 
4355         }
4356 
4357         return;
4358 
4359         /* XXX: IDC-lock implementation using access-control mbx */
4360 retry_lock2:
4361         if (qla83xx_access_control(base_vha, options, 0, 0, NULL)) {
4362                 ql_dbg(ql_dbg_p3p, base_vha, 0xb072,
4363                     "Failed to acquire IDC lock. retrying...\n");
4364                 /* Retry/Perform IDC-Lock recovery */
4365                 if (qla83xx_idc_lock_recovery(base_vha) == QLA_SUCCESS) {
4366                         qla83xx_wait_logic();
4367                         goto retry_lock2;
4368                 } else
4369                         ql_log(ql_log_warn, base_vha, 0xb076,
4370                             "IDC Lock recovery FAILED.\n");
4371         }
4372 
4373         return;
4374 }
4375 
4376 void
4377 qla83xx_idc_unlock(scsi_qla_host_t *base_vha, uint16_t requester_id)
4378 {
4379         uint16_t options = (requester_id << 15) | BIT_7, retry;
4380         uint32_t data;
4381         struct qla_hw_data *ha = base_vha->hw;
4382 
4383         /* IDC-unlock implementation using driver-unlock/lock-id
4384          * remote registers
4385          */
4386         retry = 0;
4387 retry_unlock:
4388         if (qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCKID, &data)
4389             == QLA_SUCCESS) {
4390                 if (data == ha->portnum) {
4391                         qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_UNLOCK, &data);
4392                         /* Clearing lock-id by setting 0xff */
4393                         qla83xx_wr_reg(base_vha, QLA83XX_DRIVER_LOCKID, 0xff);
4394                 } else if (retry < 10) {
4395                         /* SV: XXX: IDC unlock retrying needed here? */
4396 
4397                         /* Retry for IDC-unlock */
4398                         qla83xx_wait_logic();
4399                         retry++;
4400                         ql_dbg(ql_dbg_p3p, base_vha, 0xb064,
4401                             "Failed to release IDC lock, retyring=%d\n", retry);
4402                         goto retry_unlock;
4403                 }
4404         } else if (retry < 10) {
4405                 /* Retry for IDC-unlock */
4406                 qla83xx_wait_logic();
4407                 retry++;
4408                 ql_dbg(ql_dbg_p3p, base_vha, 0xb065,
4409                     "Failed to read drv-lockid, retyring=%d\n", retry);
4410                 goto retry_unlock;
4411         }
4412 
4413         return;
4414 
4415         /* XXX: IDC-unlock implementation using access-control mbx */
4416         retry = 0;
4417 retry_unlock2:
4418         if (qla83xx_access_control(base_vha, options, 0, 0, NULL)) {
4419                 if (retry < 10) {
4420                         /* Retry for IDC-unlock */
4421                         qla83xx_wait_logic();
4422                         retry++;
4423                         ql_dbg(ql_dbg_p3p, base_vha, 0xb066,
4424                             "Failed to release IDC lock, retyring=%d\n", retry);
4425                         goto retry_unlock2;
4426                 }
4427         }
4428 
4429         return;
4430 }
4431 
4432 int
4433 __qla83xx_set_drv_presence(scsi_qla_host_t *vha)
4434 {
4435         int rval = QLA_SUCCESS;
4436         struct qla_hw_data *ha = vha->hw;
4437         uint32_t drv_presence;
4438 
4439         rval = qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
4440         if (rval == QLA_SUCCESS) {
4441                 drv_presence |= (1 << ha->portnum);
4442                 rval = qla83xx_wr_reg(vha, QLA83XX_IDC_DRV_PRESENCE,
4443                     drv_presence);
4444         }
4445 
4446         return rval;
4447 }
4448 
4449 int
4450 qla83xx_set_drv_presence(scsi_qla_host_t *vha)
4451 {
4452         int rval = QLA_SUCCESS;
4453 
4454         qla83xx_idc_lock(vha, 0);
4455         rval = __qla83xx_set_drv_presence(vha);
4456         qla83xx_idc_unlock(vha, 0);
4457 
4458         return rval;
4459 }
4460 
4461 int
4462 __qla83xx_clear_drv_presence(scsi_qla_host_t *vha)
4463 {
4464         int rval = QLA_SUCCESS;
4465         struct qla_hw_data *ha = vha->hw;
4466         uint32_t drv_presence;
4467 
4468         rval = qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
4469         if (rval == QLA_SUCCESS) {
4470                 drv_presence &= ~(1 << ha->portnum);
4471                 rval = qla83xx_wr_reg(vha, QLA83XX_IDC_DRV_PRESENCE,
4472                     drv_presence);
4473         }
4474 
4475         return rval;
4476 }
4477 
4478 int
4479 qla83xx_clear_drv_presence(scsi_qla_host_t *vha)
4480 {
4481         int rval = QLA_SUCCESS;
4482 
4483         qla83xx_idc_lock(vha, 0);
4484         rval = __qla83xx_clear_drv_presence(vha);
4485         qla83xx_idc_unlock(vha, 0);
4486 
4487         return rval;
4488 }
4489 
4490 static void
4491 qla83xx_need_reset_handler(scsi_qla_host_t *vha)
4492 {
4493         struct qla_hw_data *ha = vha->hw;
4494         uint32_t drv_ack, drv_presence;
4495         unsigned long ack_timeout;
4496 
4497         /* Wait for IDC ACK from all functions (DRV-ACK == DRV-PRESENCE) */
4498         ack_timeout = jiffies + (ha->fcoe_reset_timeout * HZ);
4499         while (1) {
4500                 qla83xx_rd_reg(vha, QLA83XX_IDC_DRIVER_ACK, &drv_ack);
4501                 qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
4502                 if ((drv_ack & drv_presence) == drv_presence)
4503                         break;
4504 
4505                 if (time_after_eq(jiffies, ack_timeout)) {
4506                         ql_log(ql_log_warn, vha, 0xb067,
4507                             "RESET ACK TIMEOUT! drv_presence=0x%x "
4508                             "drv_ack=0x%x\n", drv_presence, drv_ack);
4509                         /*
4510                          * The function(s) which did not ack in time are forced
4511                          * to withdraw any further participation in the IDC
4512                          * reset.
4513                          */
4514                         if (drv_ack != drv_presence)
4515                                 qla83xx_wr_reg(vha, QLA83XX_IDC_DRV_PRESENCE,
4516                                     drv_ack);
4517                         break;
4518                 }
4519 
4520                 qla83xx_idc_unlock(vha, 0);
4521                 msleep(1000);
4522                 qla83xx_idc_lock(vha, 0);
4523         }
4524 
4525         qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE, QLA8XXX_DEV_COLD);
4526         ql_log(ql_log_info, vha, 0xb068, "HW State: COLD/RE-INIT.\n");
4527 }
4528 
4529 static int
4530 qla83xx_device_bootstrap(scsi_qla_host_t *vha)
4531 {
4532         int rval = QLA_SUCCESS;
4533         uint32_t idc_control;
4534 
4535         qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE, QLA8XXX_DEV_INITIALIZING);
4536         ql_log(ql_log_info, vha, 0xb069, "HW State: INITIALIZING.\n");
4537 
4538         /* Clearing IDC-Control Graceful-Reset Bit before resetting f/w */
4539         __qla83xx_get_idc_control(vha, &idc_control);
4540         idc_control &= ~QLA83XX_IDC_GRACEFUL_RESET;
4541         __qla83xx_set_idc_control(vha, 0);
4542 
4543         qla83xx_idc_unlock(vha, 0);
4544         rval = qla83xx_restart_nic_firmware(vha);
4545         qla83xx_idc_lock(vha, 0);
4546 
4547         if (rval != QLA_SUCCESS) {
4548                 ql_log(ql_log_fatal, vha, 0xb06a,
4549                     "Failed to restart NIC f/w.\n");
4550                 qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE, QLA8XXX_DEV_FAILED);
4551                 ql_log(ql_log_info, vha, 0xb06b, "HW State: FAILED.\n");
4552         } else {
4553                 ql_dbg(ql_dbg_p3p, vha, 0xb06c,
4554                     "Success in restarting nic f/w.\n");
4555                 qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE, QLA8XXX_DEV_READY);
4556                 ql_log(ql_log_info, vha, 0xb06d, "HW State: READY.\n");
4557         }
4558 
4559         return rval;
4560 }
4561 
4562 /* Assumes idc_lock always held on entry */
4563 int
4564 qla83xx_idc_state_handler(scsi_qla_host_t *base_vha)
4565 {
4566         struct qla_hw_data *ha = base_vha->hw;
4567         int rval = QLA_SUCCESS;
4568         unsigned long dev_init_timeout;
4569         uint32_t dev_state;
4570 
4571         /* Wait for MAX-INIT-TIMEOUT for the device to go ready */
4572         dev_init_timeout = jiffies + (ha->fcoe_dev_init_timeout * HZ);
4573 
4574         while (1) {
4575 
4576                 if (time_after_eq(jiffies, dev_init_timeout)) {
4577                         ql_log(ql_log_warn, base_vha, 0xb06e,
4578                             "Initialization TIMEOUT!\n");
4579                         /* Init timeout. Disable further NIC Core
4580                          * communication.
4581                          */
4582                         qla83xx_wr_reg(base_vha, QLA83XX_IDC_DEV_STATE,
4583                                 QLA8XXX_DEV_FAILED);
4584                         ql_log(ql_log_info, base_vha, 0xb06f,
4585                             "HW State: FAILED.\n");
4586                 }
4587 
4588                 qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE, &dev_state);
4589                 switch (dev_state) {
4590                 case QLA8XXX_DEV_READY:
4591                         if (ha->flags.nic_core_reset_owner)
4592                                 qla83xx_idc_audit(base_vha,
4593                                     IDC_AUDIT_COMPLETION);
4594                         ha->flags.nic_core_reset_owner = 0;
4595                         ql_dbg(ql_dbg_p3p, base_vha, 0xb070,
4596                             "Reset_owner reset by 0x%x.\n",
4597                             ha->portnum);
4598                         goto exit;
4599                 case QLA8XXX_DEV_COLD:
4600                         if (ha->flags.nic_core_reset_owner)
4601                                 rval = qla83xx_device_bootstrap(base_vha);
4602                         else {
4603                         /* Wait for AEN to change device-state */
4604                                 qla83xx_idc_unlock(base_vha, 0);
4605                                 msleep(1000);
4606                                 qla83xx_idc_lock(base_vha, 0);
4607                         }
4608                         break;
4609                 case QLA8XXX_DEV_INITIALIZING:
4610                         /* Wait for AEN to change device-state */
4611                         qla83xx_idc_unlock(base_vha, 0);
4612                         msleep(1000);
4613                         qla83xx_idc_lock(base_vha, 0);
4614                         break;
4615                 case QLA8XXX_DEV_NEED_RESET:
4616                         if (!ql2xdontresethba && ha->flags.nic_core_reset_owner)
4617                                 qla83xx_need_reset_handler(base_vha);
4618                         else {
4619                                 /* Wait for AEN to change device-state */
4620                                 qla83xx_idc_unlock(base_vha, 0);
4621                                 msleep(1000);
4622                                 qla83xx_idc_lock(base_vha, 0);
4623                         }
4624                         /* reset timeout value after need reset handler */
4625                         dev_init_timeout = jiffies +
4626                             (ha->fcoe_dev_init_timeout * HZ);
4627                         break;
4628                 case QLA8XXX_DEV_NEED_QUIESCENT:
4629                         /* XXX: DEBUG for now */
4630                         qla83xx_idc_unlock(base_vha, 0);
4631                         msleep(1000);
4632                         qla83xx_idc_lock(base_vha, 0);
4633                         break;
4634                 case QLA8XXX_DEV_QUIESCENT:
4635                         /* XXX: DEBUG for now */
4636                         if (ha->flags.quiesce_owner)
4637                                 goto exit;
4638 
4639                         qla83xx_idc_unlock(base_vha, 0);
4640                         msleep(1000);
4641                         qla83xx_idc_lock(base_vha, 0);
4642                         dev_init_timeout = jiffies +
4643                             (ha->fcoe_dev_init_timeout * HZ);
4644                         break;
4645                 case QLA8XXX_DEV_FAILED:
4646                         if (ha->flags.nic_core_reset_owner)
4647                                 qla83xx_idc_audit(base_vha,
4648                                     IDC_AUDIT_COMPLETION);
4649                         ha->flags.nic_core_reset_owner = 0;
4650                         __qla83xx_clear_drv_presence(base_vha);
4651                         qla83xx_idc_unlock(base_vha, 0);
4652                         qla8xxx_dev_failed_handler(base_vha);
4653                         rval = QLA_FUNCTION_FAILED;
4654                         qla83xx_idc_lock(base_vha, 0);
4655                         goto exit;
4656                 case QLA8XXX_BAD_VALUE:
4657                         qla83xx_idc_unlock(base_vha, 0);
4658                         msleep(1000);
4659                         qla83xx_idc_lock(base_vha, 0);
4660                         break;
4661                 default:
4662                         ql_log(ql_log_warn, base_vha, 0xb071,
4663                             "Unknow Device State: %x.\n", dev_state);
4664                         qla83xx_idc_unlock(base_vha, 0);
4665                         qla8xxx_dev_failed_handler(base_vha);
4666                         rval = QLA_FUNCTION_FAILED;
4667                         qla83xx_idc_lock(base_vha, 0);
4668                         goto exit;
4669                 }
4670         }
4671 
4672 exit:
4673         return rval;
4674 }
4675 
4676 void
4677 qla2x00_disable_board_on_pci_error(struct work_struct *work)
4678 {
4679         struct qla_hw_data *ha = container_of(work, struct qla_hw_data,
4680             board_disable);
4681         struct pci_dev *pdev = ha->pdev;
4682         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
4683 
4684         ql_log(ql_log_warn, base_vha, 0x015b,
4685             "Disabling adapter.\n");
4686 
4687         set_bit(UNLOADING, &base_vha->dpc_flags);
4688 
4689         qla2x00_delete_all_vps(ha, base_vha);
4690 
4691         qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
4692 
4693         qla2x00_dfs_remove(base_vha);
4694 
4695         qla84xx_put_chip(base_vha);
4696 
4697         if (base_vha->timer_active)
4698                 qla2x00_stop_timer(base_vha);
4699 
4700         base_vha->flags.online = 0;
4701 
4702         qla2x00_destroy_deferred_work(ha);
4703 
4704         /*
4705          * Do not try to stop beacon blink as it will issue a mailbox
4706          * command.
4707          */
4708         qla2x00_free_sysfs_attr(base_vha, false);
4709 
4710         fc_remove_host(base_vha->host);
4711 
4712         scsi_remove_host(base_vha->host);
4713 
4714         base_vha->flags.init_done = 0;
4715         qla25xx_delete_queues(base_vha);
4716         qla2x00_free_irqs(base_vha);
4717         qla2x00_free_fcports(base_vha);
4718         qla2x00_mem_free(ha);
4719         qla82xx_md_free(base_vha);
4720         qla2x00_free_queues(ha);
4721 
4722         scsi_host_put(base_vha->host);
4723 
4724         qla2x00_unmap_iobases(ha);
4725 
4726         pci_release_selected_regions(ha->pdev, ha->bars);
4727         kfree(ha);
4728         ha = NULL;
4729 
4730         pci_disable_pcie_error_reporting(pdev);
4731         pci_disable_device(pdev);
4732         pci_set_drvdata(pdev, NULL);
4733 
4734 }
4735 
4736 /**************************************************************************
4737 * qla2x00_do_dpc
4738 *   This kernel thread is a task that is schedule by the interrupt handler
4739 *   to perform the background processing for interrupts.
4740 *
4741 * Notes:
4742 * This task always run in the context of a kernel thread.  It
4743 * is kick-off by the driver's detect code and starts up
4744 * up one per adapter. It immediately goes to sleep and waits for
4745 * some fibre event.  When either the interrupt handler or
4746 * the timer routine detects a event it will one of the task
4747 * bits then wake us up.
4748 **************************************************************************/
4749 static int
4750 qla2x00_do_dpc(void *data)
4751 {
4752         int             rval;
4753         scsi_qla_host_t *base_vha;
4754         struct qla_hw_data *ha;
4755 
4756         ha = (struct qla_hw_data *)data;
4757         base_vha = pci_get_drvdata(ha->pdev);
4758 
4759         set_user_nice(current, -20);
4760 
4761         set_current_state(TASK_INTERRUPTIBLE);
4762         while (!kthread_should_stop()) {
4763                 ql_dbg(ql_dbg_dpc, base_vha, 0x4000,
4764                     "DPC handler sleeping.\n");
4765 
4766                 schedule();
4767                 __set_current_state(TASK_RUNNING);
4768 
4769                 if (!base_vha->flags.init_done || ha->flags.mbox_busy)
4770                         goto end_loop;
4771 
4772                 if (ha->flags.eeh_busy) {
4773                         ql_dbg(ql_dbg_dpc, base_vha, 0x4003,
4774                             "eeh_busy=%d.\n", ha->flags.eeh_busy);
4775                         goto end_loop;
4776                 }
4777 
4778                 ha->dpc_active = 1;
4779 
4780                 ql_dbg(ql_dbg_dpc + ql_dbg_verbose, base_vha, 0x4001,
4781                     "DPC handler waking up, dpc_flags=0x%lx.\n",
4782                     base_vha->dpc_flags);
4783 
4784                 qla2x00_do_work(base_vha);
4785 
4786                 if (IS_P3P_TYPE(ha)) {
4787                         if (IS_QLA8044(ha)) {
4788                                 if (test_and_clear_bit(ISP_UNRECOVERABLE,
4789                                         &base_vha->dpc_flags)) {
4790                                         qla8044_idc_lock(ha);
4791                                         qla8044_wr_direct(base_vha,
4792                                                 QLA8044_CRB_DEV_STATE_INDEX,
4793                                                 QLA8XXX_DEV_FAILED);
4794                                         qla8044_idc_unlock(ha);
4795                                         ql_log(ql_log_info, base_vha, 0x4004,
4796                                                 "HW State: FAILED.\n");
4797                                         qla8044_device_state_handler(base_vha);
4798                                         continue;
4799                                 }
4800 
4801                         } else {
4802                                 if (test_and_clear_bit(ISP_UNRECOVERABLE,
4803                                         &base_vha->dpc_flags)) {
4804                                         qla82xx_idc_lock(ha);
4805                                         qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
4806                                                 QLA8XXX_DEV_FAILED);
4807                                         qla82xx_idc_unlock(ha);
4808                                         ql_log(ql_log_info, base_vha, 0x0151,
4809                                                 "HW State: FAILED.\n");
4810                                         qla82xx_device_state_handler(base_vha);
4811                                         continue;
4812                                 }
4813                         }
4814 
4815                         if (test_and_clear_bit(FCOE_CTX_RESET_NEEDED,
4816                                 &base_vha->dpc_flags)) {
4817 
4818                                 ql_dbg(ql_dbg_dpc, base_vha, 0x4005,
4819                                     "FCoE context reset scheduled.\n");
4820                                 if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
4821                                         &base_vha->dpc_flags))) {
4822                                         if (qla82xx_fcoe_ctx_reset(base_vha)) {
4823                                                 /* FCoE-ctx reset failed.
4824                                                  * Escalate to chip-reset
4825                                                  */
4826                                                 set_bit(ISP_ABORT_NEEDED,
4827                                                         &base_vha->dpc_flags);
4828                                         }
4829                                         clear_bit(ABORT_ISP_ACTIVE,
4830                                                 &base_vha->dpc_flags);
4831                                 }
4832 
4833                                 ql_dbg(ql_dbg_dpc, base_vha, 0x4006,
4834                                     "FCoE context reset end.\n");
4835                         }
4836                 } else if (IS_QLAFX00(ha)) {
4837                         if (test_and_clear_bit(ISP_UNRECOVERABLE,
4838                                 &base_vha->dpc_flags)) {
4839                                 ql_dbg(ql_dbg_dpc, base_vha, 0x4020,
4840                                     "Firmware Reset Recovery\n");
4841                                 if (qlafx00_reset_initialize(base_vha)) {
4842                                         /* Failed. Abort isp later. */
4843                                         if (!test_bit(UNLOADING,
4844                                             &base_vha->dpc_flags))
4845                                                 set_bit(ISP_UNRECOVERABLE,
4846                                                     &base_vha->dpc_flags);
4847                                                 ql_dbg(ql_dbg_dpc, base_vha,
4848                                                     0x4021,
4849                                                     "Reset Recovery Failed\n");
4850                                 }
4851                         }
4852 
4853                         if (test_and_clear_bit(FX00_TARGET_SCAN,
4854                                 &base_vha->dpc_flags)) {
4855                                 ql_dbg(ql_dbg_dpc, base_vha, 0x4022,
4856                                     "ISPFx00 Target Scan scheduled\n");
4857                                 if (qlafx00_rescan_isp(base_vha)) {
4858                                         if (!test_bit(UNLOADING,
4859                                             &base_vha->dpc_flags))
4860                                                 set_bit(ISP_UNRECOVERABLE,
4861                                                     &base_vha->dpc_flags);
4862                                         ql_dbg(ql_dbg_dpc, base_vha, 0x401e,
4863                                             "ISPFx00 Target Scan Failed\n");
4864                                 }
4865                                 ql_dbg(ql_dbg_dpc, base_vha, 0x401f,
4866                                     "ISPFx00 Target Scan End\n");
4867                         }
4868                         if (test_and_clear_bit(FX00_HOST_INFO_RESEND,
4869                                 &base_vha->dpc_flags)) {
4870                                 ql_dbg(ql_dbg_dpc, base_vha, 0x4023,
4871                                     "ISPFx00 Host Info resend scheduled\n");
4872                                 qlafx00_fx_disc(base_vha,
4873                                     &base_vha->hw->mr.fcport,
4874                                     FXDISC_REG_HOST_INFO);
4875                         }
4876                 }
4877 
4878                 if (test_and_clear_bit(ISP_ABORT_NEEDED,
4879                                                 &base_vha->dpc_flags)) {
4880 
4881                         ql_dbg(ql_dbg_dpc, base_vha, 0x4007,
4882                             "ISP abort scheduled.\n");
4883                         if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
4884                             &base_vha->dpc_flags))) {
4885 
4886                                 if (ha->isp_ops->abort_isp(base_vha)) {
4887                                         /* failed. retry later */
4888                                         set_bit(ISP_ABORT_NEEDED,
4889                                             &base_vha->dpc_flags);
4890                                 }
4891                                 clear_bit(ABORT_ISP_ACTIVE,
4892                                                 &base_vha->dpc_flags);
4893                         }
4894 
4895                         ql_dbg(ql_dbg_dpc, base_vha, 0x4008,
4896                             "ISP abort end.\n");
4897                 }
4898 
4899                 if (test_and_clear_bit(FCPORT_UPDATE_NEEDED,
4900                     &base_vha->dpc_flags)) {
4901                         qla2x00_update_fcports(base_vha);
4902                 }
4903 
4904                 if (test_bit(SCR_PENDING, &base_vha->dpc_flags)) {
4905                         int ret;
4906                         ret = qla2x00_send_change_request(base_vha, 0x3, 0);
4907                         if (ret != QLA_SUCCESS)
4908                                 ql_log(ql_log_warn, base_vha, 0x121,
4909                                     "Failed to enable receiving of RSCN "
4910                                     "requests: 0x%x.\n", ret);
4911                         clear_bit(SCR_PENDING, &base_vha->dpc_flags);
4912                 }
4913 
4914                 if (IS_QLAFX00(ha))
4915                         goto loop_resync_check;
4916 
4917                 if (test_bit(ISP_QUIESCE_NEEDED, &base_vha->dpc_flags)) {
4918                         ql_dbg(ql_dbg_dpc, base_vha, 0x4009,
4919                             "Quiescence mode scheduled.\n");
4920                         if (IS_P3P_TYPE(ha)) {
4921                                 if (IS_QLA82XX(ha))
4922                                         qla82xx_device_state_handler(base_vha);
4923                                 if (IS_QLA8044(ha))
4924                                         qla8044_device_state_handler(base_vha);
4925                                 clear_bit(ISP_QUIESCE_NEEDED,
4926                                     &base_vha->dpc_flags);
4927                                 if (!ha->flags.quiesce_owner) {
4928                                         qla2x00_perform_loop_resync(base_vha);
4929                                         if (IS_QLA82XX(ha)) {
4930                                                 qla82xx_idc_lock(ha);
4931                                                 qla82xx_clear_qsnt_ready(
4932                                                     base_vha);
4933                                                 qla82xx_idc_unlock(ha);
4934                                         } else if (IS_QLA8044(ha)) {
4935                                                 qla8044_idc_lock(ha);
4936                                                 qla8044_clear_qsnt_ready(
4937                                                     base_vha);
4938                                                 qla8044_idc_unlock(ha);
4939                                         }
4940                                 }
4941                         } else {
4942                                 clear_bit(ISP_QUIESCE_NEEDED,
4943                                     &base_vha->dpc_flags);
4944                                 qla2x00_quiesce_io(base_vha);
4945                         }
4946                         ql_dbg(ql_dbg_dpc, base_vha, 0x400a,
4947                             "Quiescence mode end.\n");
4948                 }
4949 
4950                 if (test_and_clear_bit(RESET_MARKER_NEEDED,
4951                                 &base_vha->dpc_flags) &&
4952                     (!(test_and_set_bit(RESET_ACTIVE, &base_vha->dpc_flags)))) {
4953 
4954                         ql_dbg(ql_dbg_dpc, base_vha, 0x400b,
4955                             "Reset marker scheduled.\n");
4956                         qla2x00_rst_aen(base_vha);
4957                         clear_bit(RESET_ACTIVE, &base_vha->dpc_flags);
4958                         ql_dbg(ql_dbg_dpc, base_vha, 0x400c,
4959                             "Reset marker end.\n");
4960                 }
4961 
4962                 /* Retry each device up to login retry count */
4963                 if ((test_and_clear_bit(RELOGIN_NEEDED,
4964                                                 &base_vha->dpc_flags)) &&
4965                     !test_bit(LOOP_RESYNC_NEEDED, &base_vha->dpc_flags) &&
4966                     atomic_read(&base_vha->loop_state) != LOOP_DOWN) {
4967 
4968                         ql_dbg(ql_dbg_dpc, base_vha, 0x400d,
4969                             "Relogin scheduled.\n");
4970                         qla2x00_relogin(base_vha);
4971                         ql_dbg(ql_dbg_dpc, base_vha, 0x400e,
4972                             "Relogin end.\n");
4973                 }
4974 loop_resync_check:
4975                 if (test_and_clear_bit(LOOP_RESYNC_NEEDED,
4976                     &base_vha->dpc_flags)) {
4977 
4978                         ql_dbg(ql_dbg_dpc, base_vha, 0x400f,
4979                             "Loop resync scheduled.\n");
4980 
4981                         if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
4982                             &base_vha->dpc_flags))) {
4983 
4984                                 rval = qla2x00_loop_resync(base_vha);
4985 
4986                                 clear_bit(LOOP_RESYNC_ACTIVE,
4987                                                 &base_vha->dpc_flags);
4988                         }
4989 
4990                         ql_dbg(ql_dbg_dpc, base_vha, 0x4010,
4991                             "Loop resync end.\n");
4992                 }
4993 
4994                 if (IS_QLAFX00(ha))
4995                         goto intr_on_check;
4996 
4997                 if (test_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags) &&
4998                     atomic_read(&base_vha->loop_state) == LOOP_READY) {
4999                         clear_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags);
5000                         qla2xxx_flash_npiv_conf(base_vha);
5001                 }
5002 
5003 intr_on_check:
5004                 if (!ha->interrupts_on)
5005                         ha->isp_ops->enable_intrs(ha);
5006 
5007                 if (test_and_clear_bit(BEACON_BLINK_NEEDED,
5008                                         &base_vha->dpc_flags))
5009                         ha->isp_ops->beacon_blink(base_vha);
5010 
5011                 if (!IS_QLAFX00(ha))
5012                         qla2x00_do_dpc_all_vps(base_vha);
5013 
5014                 ha->dpc_active = 0;
5015 end_loop:
5016                 set_current_state(TASK_INTERRUPTIBLE);
5017         } /* End of while(1) */
5018         __set_current_state(TASK_RUNNING);
5019 
5020         ql_dbg(ql_dbg_dpc, base_vha, 0x4011,
5021             "DPC handler exiting.\n");
5022 
5023         /*
5024          * Make sure that nobody tries to wake us up again.
5025          */
5026         ha->dpc_active = 0;
5027 
5028         /* Cleanup any residual CTX SRBs. */
5029         qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
5030 
5031         return 0;
5032 }
5033 
5034 void
5035 qla2xxx_wake_dpc(struct scsi_qla_host *vha)
5036 {
5037         struct qla_hw_data *ha = vha->hw;
5038         struct task_struct *t = ha->dpc_thread;
5039 
5040         if (!test_bit(UNLOADING, &vha->dpc_flags) && t)
5041                 wake_up_process(t);
5042 }
5043 
5044 /*
5045 *  qla2x00_rst_aen
5046 *      Processes asynchronous reset.
5047 *
5048 * Input:
5049 *      ha  = adapter block pointer.
5050 */
5051 static void
5052 qla2x00_rst_aen(scsi_qla_host_t *vha)
5053 {
5054         if (vha->flags.online && !vha->flags.reset_active &&
5055             !atomic_read(&vha->loop_down_timer) &&
5056             !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))) {
5057                 do {
5058                         clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
5059 
5060                         /*
5061                          * Issue marker command only when we are going to start
5062                          * the I/O.
5063                          */
5064                         vha->marker_needed = 1;
5065                 } while (!atomic_read(&vha->loop_down_timer) &&
5066                     (test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags)));
5067         }
5068 }
5069 
5070 /**************************************************************************
5071 *   qla2x00_timer
5072 *
5073 * Description:
5074 *   One second timer
5075 *
5076 * Context: Interrupt
5077 ***************************************************************************/
5078 void
5079 qla2x00_timer(scsi_qla_host_t *vha)
5080 {
5081         unsigned long   cpu_flags = 0;
5082         int             start_dpc = 0;
5083         int             index;
5084         srb_t           *sp;
5085         uint16_t        w;
5086         struct qla_hw_data *ha = vha->hw;
5087         struct req_que *req;
5088 
5089         if (ha->flags.eeh_busy) {
5090                 ql_dbg(ql_dbg_timer, vha, 0x6000,
5091                     "EEH = %d, restarting timer.\n",
5092                     ha->flags.eeh_busy);
5093                 qla2x00_restart_timer(vha, WATCH_INTERVAL);
5094                 return;
5095         }
5096 
5097         /*
5098          * Hardware read to raise pending EEH errors during mailbox waits. If
5099          * the read returns -1 then disable the board.
5100          */
5101         if (!pci_channel_offline(ha->pdev)) {
5102                 pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
5103                 if (w == 0xffff)
5104                         /*
5105                          * Schedule this on the default system workqueue so that
5106                          * all the adapter workqueues and the DPC thread can be
5107                          * shutdown cleanly.
5108                          */
5109                         schedule_work(&ha->board_disable);
5110         }
5111 
5112         /* Make sure qla82xx_watchdog is run only for physical port */
5113         if (!vha->vp_idx && IS_P3P_TYPE(ha)) {
5114                 if (test_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags))
5115                         start_dpc++;
5116                 if (IS_QLA82XX(ha))
5117                         qla82xx_watchdog(vha);
5118                 else if (IS_QLA8044(ha))
5119                         qla8044_watchdog(vha);
5120         }
5121 
5122         if (!vha->vp_idx && IS_QLAFX00(ha))
5123                 qlafx00_timer_routine(vha);
5124 
5125         /* Loop down handler. */
5126         if (atomic_read(&vha->loop_down_timer) > 0 &&
5127             !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) &&
5128             !(test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags))
5129                 && vha->flags.online) {
5130 
5131                 if (atomic_read(&vha->loop_down_timer) ==
5132                     vha->loop_down_abort_time) {
5133 
5134                         ql_log(ql_log_info, vha, 0x6008,
5135                             "Loop down - aborting the queues before time expires.\n");
5136 
5137                         if (!IS_QLA2100(ha) && vha->link_down_timeout)
5138                                 atomic_set(&vha->loop_state, LOOP_DEAD);
5139 
5140                         /*
5141                          * Schedule an ISP abort to return any FCP2-device
5142                          * commands.
5143                          */
5144                         /* NPIV - scan physical port only */
5145                         if (!vha->vp_idx) {
5146                                 spin_lock_irqsave(&ha->hardware_lock,
5147                                     cpu_flags);
5148                                 req = ha->req_q_map[0];
5149                                 for (index = 1;
5150                                     index < req->num_outstanding_cmds;
5151                                     index++) {
5152                                         fc_port_t *sfcp;
5153 
5154                                         sp = req->outstanding_cmds[index];
5155                                         if (!sp)
5156                                                 continue;
5157                                         if (sp->type != SRB_SCSI_CMD)
5158                                                 continue;
5159                                         sfcp = sp->fcport;
5160                                         if (!(sfcp->flags & FCF_FCP2_DEVICE))
5161                                                 continue;
5162 
5163                                         if (IS_QLA82XX(ha))
5164                                                 set_bit(FCOE_CTX_RESET_NEEDED,
5165                                                         &vha->dpc_flags);
5166                                         else
5167                                                 set_bit(ISP_ABORT_NEEDED,
5168                                                         &vha->dpc_flags);
5169                                         break;
5170                                 }
5171                                 spin_unlock_irqrestore(&ha->hardware_lock,
5172                                                                 cpu_flags);
5173                         }
5174                         start_dpc++;
5175                 }
5176 
5177                 /* if the loop has been down for 4 minutes, reinit adapter */
5178                 if (atomic_dec_and_test(&vha->loop_down_timer) != 0) {
5179                         if (!(vha->device_flags & DFLG_NO_CABLE)) {
5180                                 ql_log(ql_log_warn, vha, 0x6009,
5181                                     "Loop down - aborting ISP.\n");
5182 
5183                                 if (IS_QLA82XX(ha))
5184                                         set_bit(FCOE_CTX_RESET_NEEDED,
5185                                                 &vha->dpc_flags);
5186                                 else
5187                                         set_bit(ISP_ABORT_NEEDED,
5188                                                 &vha->dpc_flags);
5189                         }
5190                 }
5191                 ql_dbg(ql_dbg_timer, vha, 0x600a,
5192                     "Loop down - seconds remaining %d.\n",
5193                     atomic_read(&vha->loop_down_timer));
5194         }
5195         /* Check if beacon LED needs to be blinked for physical host only */
5196         if (!vha->vp_idx && (ha->beacon_blink_led == 1)) {
5197                 /* There is no beacon_blink function for ISP82xx */
5198                 if (!IS_P3P_TYPE(ha)) {
5199                         set_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags);
5200                         start_dpc++;
5201                 }
5202         }
5203 
5204         /* Process any deferred work. */
5205         if (!list_empty(&vha->work_list))
5206                 start_dpc++;
5207 
5208         /* Schedule the DPC routine if needed */
5209         if ((test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) ||
5210             test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) ||
5211             test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags) ||
5212             start_dpc ||
5213             test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) ||
5214             test_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags) ||
5215             test_bit(ISP_UNRECOVERABLE, &vha->dpc_flags) ||
5216             test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) ||
5217             test_bit(VP_DPC_NEEDED, &vha->dpc_flags) ||
5218             test_bit(RELOGIN_NEEDED, &vha->dpc_flags))) {
5219                 ql_dbg(ql_dbg_timer, vha, 0x600b,
5220                     "isp_abort_needed=%d loop_resync_needed=%d "
5221                     "fcport_update_needed=%d start_dpc=%d "
5222                     "reset_marker_needed=%d",
5223                     test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags),
5224                     test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags),
5225                     test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags),
5226                     start_dpc,
5227                     test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags));
5228                 ql_dbg(ql_dbg_timer, vha, 0x600c,
5229                     "beacon_blink_needed=%d isp_unrecoverable=%d "
5230                     "fcoe_ctx_reset_needed=%d vp_dpc_needed=%d "
5231                     "relogin_needed=%d.\n",
5232                     test_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags),
5233                     test_bit(ISP_UNRECOVERABLE, &vha->dpc_flags),
5234                     test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags),
5235                     test_bit(VP_DPC_NEEDED, &vha->dpc_flags),
5236                     test_bit(RELOGIN_NEEDED, &vha->dpc_flags));
5237                 qla2xxx_wake_dpc(vha);
5238         }
5239 
5240         qla2x00_restart_timer(vha, WATCH_INTERVAL);
5241 }
5242 
5243 /* Firmware interface routines. */
5244 
5245 #define FW_BLOBS        10
5246 #define FW_ISP21XX      0
5247 #define FW_ISP22XX      1
5248 #define FW_ISP2300      2
5249 #define FW_ISP2322      3
5250 #define FW_ISP24XX      4
5251 #define FW_ISP25XX      5
5252 #define FW_ISP81XX      6
5253 #define FW_ISP82XX      7
5254 #define FW_ISP2031      8
5255 #define FW_ISP8031      9
5256 
5257 #define FW_FILE_ISP21XX "ql2100_fw.bin"
5258 #define FW_FILE_ISP22XX "ql2200_fw.bin"
5259 #define FW_FILE_ISP2300 "ql2300_fw.bin"
5260 #define FW_FILE_ISP2322 "ql2322_fw.bin"
5261 #define FW_FILE_ISP24XX "ql2400_fw.bin"
5262 #define FW_FILE_ISP25XX "ql2500_fw.bin"
5263 #define FW_FILE_ISP81XX "ql8100_fw.bin"
5264 #define FW_FILE_ISP82XX "ql8200_fw.bin"
5265 #define FW_FILE_ISP2031 "ql2600_fw.bin"
5266 #define FW_FILE_ISP8031 "ql8300_fw.bin"
5267 
5268 static DEFINE_MUTEX(qla_fw_lock);
5269 
5270 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
5271         { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
5272         { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
5273         { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
5274         { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
5275         { .name = FW_FILE_ISP24XX, },
5276         { .name = FW_FILE_ISP25XX, },
5277         { .name = FW_FILE_ISP81XX, },
5278         { .name = FW_FILE_ISP82XX, },
5279         { .name = FW_FILE_ISP2031, },
5280         { .name = FW_FILE_ISP8031, },
5281 };
5282 
5283 struct fw_blob *
5284 qla2x00_request_firmware(scsi_qla_host_t *vha)
5285 {
5286         struct qla_hw_data *ha = vha->hw;
5287         struct fw_blob *blob;
5288 
5289         if (IS_QLA2100(ha)) {
5290                 blob = &qla_fw_blobs[FW_ISP21XX];
5291         } else if (IS_QLA2200(ha)) {
5292                 blob = &qla_fw_blobs[FW_ISP22XX];
5293         } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
5294                 blob = &qla_fw_blobs[FW_ISP2300];
5295         } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
5296                 blob = &qla_fw_blobs[FW_ISP2322];
5297         } else if (IS_QLA24XX_TYPE(ha)) {
5298                 blob = &qla_fw_blobs[FW_ISP24XX];
5299         } else if (IS_QLA25XX(ha)) {
5300                 blob = &qla_fw_blobs[FW_ISP25XX];
5301         } else if (IS_QLA81XX(ha)) {
5302                 blob = &qla_fw_blobs[FW_ISP81XX];
5303         } else if (IS_QLA82XX(ha)) {
5304                 blob = &qla_fw_blobs[FW_ISP82XX];
5305         } else if (IS_QLA2031(ha)) {
5306                 blob = &qla_fw_blobs[FW_ISP2031];
5307         } else if (IS_QLA8031(ha)) {
5308                 blob = &qla_fw_blobs[FW_ISP8031];
5309         } else {
5310                 return NULL;
5311         }
5312 
5313         mutex_lock(&qla_fw_lock);
5314         if (blob->fw)
5315                 goto out;
5316 
5317         if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
5318                 ql_log(ql_log_warn, vha, 0x0063,
5319                     "Failed to load firmware image (%s).\n", blob->name);
5320                 blob->fw = NULL;
5321                 blob = NULL;
5322                 goto out;
5323         }
5324 
5325 out:
5326         mutex_unlock(&qla_fw_lock);
5327         return blob;
5328 }
5329 
5330 static void
5331 qla2x00_release_firmware(void)
5332 {
5333         int idx;
5334 
5335         mutex_lock(&qla_fw_lock);
5336         for (idx = 0; idx < FW_BLOBS; idx++)
5337                 release_firmware(qla_fw_blobs[idx].fw);
5338         mutex_unlock(&qla_fw_lock);
5339 }
5340 
5341 static pci_ers_result_t
5342 qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
5343 {
5344         scsi_qla_host_t *vha = pci_get_drvdata(pdev);
5345         struct qla_hw_data *ha = vha->hw;
5346 
5347         ql_dbg(ql_dbg_aer, vha, 0x9000,
5348             "PCI error detected, state %x.\n", state);
5349 
5350         switch (state) {
5351         case pci_channel_io_normal:
5352                 ha->flags.eeh_busy = 0;
5353                 return PCI_ERS_RESULT_CAN_RECOVER;
5354         case pci_channel_io_frozen:
5355                 ha->flags.eeh_busy = 1;
5356                 /* For ISP82XX complete any pending mailbox cmd */
5357                 if (IS_QLA82XX(ha)) {
5358                         ha->flags.isp82xx_fw_hung = 1;
5359                         ql_dbg(ql_dbg_aer, vha, 0x9001, "Pci channel io frozen\n");
5360                         qla82xx_clear_pending_mbx(vha);
5361                 }
5362                 qla2x00_free_irqs(vha);
5363                 pci_disable_device(pdev);
5364                 /* Return back all IOs */
5365                 qla2x00_abort_all_cmds(vha, DID_RESET << 16);
5366                 return PCI_ERS_RESULT_NEED_RESET;
5367         case pci_channel_io_perm_failure:
5368                 ha->flags.pci_channel_io_perm_failure = 1;
5369                 qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
5370                 return PCI_ERS_RESULT_DISCONNECT;
5371         }
5372         return PCI_ERS_RESULT_NEED_RESET;
5373 }
5374 
5375 static pci_ers_result_t
5376 qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
5377 {
5378         int risc_paused = 0;
5379         uint32_t stat;
5380         unsigned long flags;
5381         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
5382         struct qla_hw_data *ha = base_vha->hw;
5383         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
5384         struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
5385 
5386         if (IS_QLA82XX(ha))
5387                 return PCI_ERS_RESULT_RECOVERED;
5388 
5389         spin_lock_irqsave(&ha->hardware_lock, flags);
5390         if (IS_QLA2100(ha) || IS_QLA2200(ha)){
5391                 stat = RD_REG_DWORD(&reg->hccr);
5392                 if (stat & HCCR_RISC_PAUSE)
5393                         risc_paused = 1;
5394         } else if (IS_QLA23XX(ha)) {
5395                 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
5396                 if (stat & HSR_RISC_PAUSED)
5397                         risc_paused = 1;
5398         } else if (IS_FWI2_CAPABLE(ha)) {
5399                 stat = RD_REG_DWORD(&reg24->host_status);
5400                 if (stat & HSRX_RISC_PAUSED)
5401                         risc_paused = 1;
5402         }
5403         spin_unlock_irqrestore(&ha->hardware_lock, flags);
5404 
5405         if (risc_paused) {
5406                 ql_log(ql_log_info, base_vha, 0x9003,
5407                     "RISC paused -- mmio_enabled, Dumping firmware.\n");
5408                 ha->isp_ops->fw_dump(base_vha, 0);
5409 
5410                 return PCI_ERS_RESULT_NEED_RESET;
5411         } else
5412                 return PCI_ERS_RESULT_RECOVERED;
5413 }
5414 
5415 static uint32_t
5416 qla82xx_error_recovery(scsi_qla_host_t *base_vha)
5417 {
5418         uint32_t rval = QLA_FUNCTION_FAILED;
5419         uint32_t drv_active = 0;
5420         struct qla_hw_data *ha = base_vha->hw;
5421         int fn;
5422         struct pci_dev *other_pdev = NULL;
5423 
5424         ql_dbg(ql_dbg_aer, base_vha, 0x9006,
5425             "Entered %s.\n", __func__);
5426 
5427         set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
5428 
5429         if (base_vha->flags.online) {
5430                 /* Abort all outstanding commands,
5431                  * so as to be requeued later */
5432                 qla2x00_abort_isp_cleanup(base_vha);
5433         }
5434 
5435 
5436         fn = PCI_FUNC(ha->pdev->devfn);
5437         while (fn > 0) {
5438                 fn--;
5439                 ql_dbg(ql_dbg_aer, base_vha, 0x9007,
5440                     "Finding pci device at function = 0x%x.\n", fn);
5441                 other_pdev =
5442                     pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus),
5443                     ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
5444                     fn));
5445 
5446                 if (!other_pdev)
5447                         continue;
5448                 if (atomic_read(&other_pdev->enable_cnt)) {
5449                         ql_dbg(ql_dbg_aer, base_vha, 0x9008,
5450                             "Found PCI func available and enable at 0x%x.\n",
5451                             fn);
5452                         pci_dev_put(other_pdev);
5453                         break;
5454                 }
5455                 pci_dev_put(other_pdev);
5456         }
5457 
5458         if (!fn) {
5459                 /* Reset owner */
5460                 ql_dbg(ql_dbg_aer, base_vha, 0x9009,
5461                     "This devfn is reset owner = 0x%x.\n",
5462                     ha->pdev->devfn);
5463                 qla82xx_idc_lock(ha);
5464 
5465                 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
5466                     QLA8XXX_DEV_INITIALIZING);
5467 
5468                 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION,
5469                     QLA82XX_IDC_VERSION);
5470 
5471                 drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
5472                 ql_dbg(ql_dbg_aer, base_vha, 0x900a,
5473                     "drv_active = 0x%x.\n", drv_active);
5474 
5475                 qla82xx_idc_unlock(ha);
5476                 /* Reset if device is not already reset
5477                  * drv_active would be 0 if a reset has already been done
5478                  */
5479                 if (drv_active)
5480                         rval = qla82xx_start_firmware(base_vha);
5481                 else
5482                         rval = QLA_SUCCESS;
5483                 qla82xx_idc_lock(ha);
5484 
5485                 if (rval != QLA_SUCCESS) {
5486                         ql_log(ql_log_info, base_vha, 0x900b,
5487                             "HW State: FAILED.\n");
5488                         qla82xx_clear_drv_active(ha);
5489                         qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
5490                             QLA8XXX_DEV_FAILED);
5491                 } else {
5492                         ql_log(ql_log_info, base_vha, 0x900c,
5493                             "HW State: READY.\n");
5494                         qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
5495                             QLA8XXX_DEV_READY);
5496                         qla82xx_idc_unlock(ha);
5497                         ha->flags.isp82xx_fw_hung = 0;
5498                         rval = qla82xx_restart_isp(base_vha);
5499                         qla82xx_idc_lock(ha);
5500                         /* Clear driver state register */
5501                         qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, 0);
5502                         qla82xx_set_drv_active(base_vha);
5503                 }
5504                 qla82xx_idc_unlock(ha);
5505         } else {
5506                 ql_dbg(ql_dbg_aer, base_vha, 0x900d,
5507                     "This devfn is not reset owner = 0x%x.\n",
5508                     ha->pdev->devfn);
5509                 if ((qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE) ==
5510                     QLA8XXX_DEV_READY)) {
5511                         ha->flags.isp82xx_fw_hung = 0;
5512                         rval = qla82xx_restart_isp(base_vha);
5513                         qla82xx_idc_lock(ha);
5514                         qla82xx_set_drv_active(base_vha);
5515                         qla82xx_idc_unlock(ha);
5516                 }
5517         }
5518         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
5519 
5520         return rval;
5521 }
5522 
5523 static pci_ers_result_t
5524 qla2xxx_pci_slot_reset(struct pci_dev *pdev)
5525 {
5526         pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
5527         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
5528         struct qla_hw_data *ha = base_vha->hw;
5529         struct rsp_que *rsp;
5530         int rc, retries = 10;
5531 
5532         ql_dbg(ql_dbg_aer, base_vha, 0x9004,
5533             "Slot Reset.\n");
5534 
5535         /* Workaround: qla2xxx driver which access hardware earlier
5536          * needs error state to be pci_channel_io_online.
5537          * Otherwise mailbox command timesout.
5538          */
5539         pdev->error_state = pci_channel_io_normal;
5540 
5541         pci_restore_state(pdev);
5542 
5543         /* pci_restore_state() clears the saved_state flag of the device
5544          * save restored state which resets saved_state flag
5545          */
5546         pci_save_state(pdev);
5547 
5548         if (ha->mem_only)
5549                 rc = pci_enable_device_mem(pdev);
5550         else
5551                 rc = pci_enable_device(pdev);
5552 
5553         if (rc) {
5554                 ql_log(ql_log_warn, base_vha, 0x9005,
5555                     "Can't re-enable PCI device after reset.\n");
5556                 goto exit_slot_reset;
5557         }
5558 
5559         rsp = ha->rsp_q_map[0];
5560         if (qla2x00_request_irqs(ha, rsp))
5561                 goto exit_slot_reset;
5562 
5563         if (ha->isp_ops->pci_config(base_vha))
5564                 goto exit_slot_reset;
5565 
5566         if (IS_QLA82XX(ha)) {
5567                 if (qla82xx_error_recovery(base_vha) == QLA_SUCCESS) {
5568                         ret = PCI_ERS_RESULT_RECOVERED;
5569                         goto exit_slot_reset;
5570                 } else
5571                         goto exit_slot_reset;
5572         }
5573 
5574         while (ha->flags.mbox_busy && retries--)
5575                 msleep(1000);
5576 
5577         set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
5578         if (ha->isp_ops->abort_isp(base_vha) == QLA_SUCCESS)
5579                 ret =  PCI_ERS_RESULT_RECOVERED;
5580         clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
5581 
5582 
5583 exit_slot_reset:
5584         ql_dbg(ql_dbg_aer, base_vha, 0x900e,
5585             "slot_reset return %x.\n", ret);
5586 
5587         return ret;
5588 }
5589 
5590 static void
5591 qla2xxx_pci_resume(struct pci_dev *pdev)
5592 {
5593         scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
5594         struct qla_hw_data *ha = base_vha->hw;
5595         int ret;
5596 
5597         ql_dbg(ql_dbg_aer, base_vha, 0x900f,
5598             "pci_resume.\n");
5599 
5600         ret = qla2x00_wait_for_hba_online(base_vha);
5601         if (ret != QLA_SUCCESS) {
5602                 ql_log(ql_log_fatal, base_vha, 0x9002,
5603                     "The device failed to resume I/O from slot/link_reset.\n");
5604         }
5605 
5606         pci_cleanup_aer_uncorrect_error_status(pdev);
5607 
5608         ha->flags.eeh_busy = 0;
5609 }
5610 
5611 static const struct pci_error_handlers qla2xxx_err_handler = {
5612         .error_detected = qla2xxx_pci_error_detected,
5613         .mmio_enabled = qla2xxx_pci_mmio_enabled,
5614         .slot_reset = qla2xxx_pci_slot_reset,
5615         .resume = qla2xxx_pci_resume,
5616 };
5617 
5618 static struct pci_device_id qla2xxx_pci_tbl[] = {
5619         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
5620         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
5621         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
5622         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
5623         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
5624         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
5625         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
5626         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
5627         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
5628         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8432) },
5629         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
5630         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
5631         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
5632         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2031) },
5633         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8001) },
5634         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8021) },
5635         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8031) },
5636         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISPF001) },
5637         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8044) },
5638         { 0 },
5639 };
5640 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
5641 
5642 static struct pci_driver qla2xxx_pci_driver = {
5643         .name           = QLA2XXX_DRIVER_NAME,
5644         .driver         = {
5645                 .owner          = THIS_MODULE,
5646         },
5647         .id_table       = qla2xxx_pci_tbl,
5648         .probe          = qla2x00_probe_one,
5649         .remove         = qla2x00_remove_one,
5650         .shutdown       = qla2x00_shutdown,
5651         .err_handler    = &qla2xxx_err_handler,
5652 };
5653 
5654 static const struct file_operations apidev_fops = {
5655         .owner = THIS_MODULE,
5656         .llseek = noop_llseek,
5657 };
5658 
5659 /**
5660  * qla2x00_module_init - Module initialization.
5661  **/
5662 static int __init
5663 qla2x00_module_init(void)
5664 {
5665         int ret = 0;
5666 
5667         /* Allocate cache for SRBs. */
5668         srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
5669             SLAB_HWCACHE_ALIGN, NULL);
5670         if (srb_cachep == NULL) {
5671                 ql_log(ql_log_fatal, NULL, 0x0001,
5672                     "Unable to allocate SRB cache...Failing load!.\n");
5673                 return -ENOMEM;
5674         }
5675 
5676         /* Initialize target kmem_cache and mem_pools */
5677         ret = qlt_init();
5678         if (ret < 0) {
5679                 kmem_cache_destroy(srb_cachep);
5680                 return ret;
5681         } else if (ret > 0) {
5682                 /*
5683                  * If initiator mode is explictly disabled by qlt_init(),
5684                  * prevent scsi_transport_fc.c:fc_scsi_scan_rport() from
5685                  * performing scsi_scan_target() during LOOP UP event.
5686                  */
5687                 qla2xxx_transport_functions.disable_target_scan = 1;
5688                 qla2xxx_transport_vport_functions.disable_target_scan = 1;
5689         }
5690 
5691         /* Derive version string. */
5692         strcpy(qla2x00_version_str, QLA2XXX_VERSION);
5693         if (ql2xextended_error_logging)
5694                 strcat(qla2x00_version_str, "-debug");
5695 
5696         qla2xxx_transport_template =
5697             fc_attach_transport(&qla2xxx_transport_functions);
5698         if (!qla2xxx_transport_template) {
5699                 kmem_cache_destroy(srb_cachep);
5700                 ql_log(ql_log_fatal, NULL, 0x0002,
5701                     "fc_attach_transport failed...Failing load!.\n");
5702                 qlt_exit();
5703                 return -ENODEV;
5704         }
5705 
5706         apidev_major = register_chrdev(0, QLA2XXX_APIDEV, &apidev_fops);
5707         if (apidev_major < 0) {
5708                 ql_log(ql_log_fatal, NULL, 0x0003,
5709                     "Unable to register char device %s.\n", QLA2XXX_APIDEV);
5710         }
5711 
5712         qla2xxx_transport_vport_template =
5713             fc_attach_transport(&qla2xxx_transport_vport_functions);
5714         if (!qla2xxx_transport_vport_template) {
5715                 kmem_cache_destroy(srb_cachep);
5716                 qlt_exit();
5717                 fc_release_transport(qla2xxx_transport_template);
5718                 ql_log(ql_log_fatal, NULL, 0x0004,
5719                     "fc_attach_transport vport failed...Failing load!.\n");
5720                 return -ENODEV;
5721         }
5722         ql_log(ql_log_info, NULL, 0x0005,
5723             "QLogic Fibre Channel HBA Driver: %s.\n",
5724             qla2x00_version_str);
5725         ret = pci_register_driver(&qla2xxx_pci_driver);
5726         if (ret) {
5727                 kmem_cache_destroy(srb_cachep);
5728                 qlt_exit();
5729                 fc_release_transport(qla2xxx_transport_template);
5730                 fc_release_transport(qla2xxx_transport_vport_template);
5731                 ql_log(ql_log_fatal, NULL, 0x0006,
5732                     "pci_register_driver failed...ret=%d Failing load!.\n",
5733                     ret);
5734         }
5735         return ret;
5736 }
5737 
5738 /**
5739  * qla2x00_module_exit - Module cleanup.
5740  **/
5741 static void __exit
5742 qla2x00_module_exit(void)
5743 {
5744         unregister_chrdev(apidev_major, QLA2XXX_APIDEV);
5745         pci_unregister_driver(&qla2xxx_pci_driver);
5746         qla2x00_release_firmware();
5747         kmem_cache_destroy(srb_cachep);
5748         qlt_exit();
5749         if (ctx_cachep)
5750                 kmem_cache_destroy(ctx_cachep);
5751         fc_release_transport(qla2xxx_transport_template);
5752         fc_release_transport(qla2xxx_transport_vport_template);
5753 }
5754 
5755 module_init(qla2x00_module_init);
5756 module_exit(qla2x00_module_exit);
5757 
5758 MODULE_AUTHOR("QLogic Corporation");
5759 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
5760 MODULE_LICENSE("GPL");
5761 MODULE_VERSION(QLA2XXX_VERSION);
5762 MODULE_FIRMWARE(FW_FILE_ISP21XX);
5763 MODULE_FIRMWARE(FW_FILE_ISP22XX);
5764 MODULE_FIRMWARE(FW_FILE_ISP2300);
5765 MODULE_FIRMWARE(FW_FILE_ISP2322);
5766 MODULE_FIRMWARE(FW_FILE_ISP24XX);
5767 MODULE_FIRMWARE(FW_FILE_ISP25XX);
5768 

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