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Merge tag 'pci-v3.15-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaa...
[deliverable/linux.git] / drivers / scsi / be2iscsi / be_main.c
1 /**
2 * Copyright (C) 2005 - 2013 Emulex
3 * All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License version 2
7 * as published by the Free Software Foundation. The full GNU General
8 * Public License is included in this distribution in the file called COPYING.
9 *
10 * Written by: Jayamohan Kallickal (jayamohan.kallickal@emulex.com)
11 *
12 * Contact Information:
13 * linux-drivers@emulex.com
14 *
15 * Emulex
16 * 3333 Susan Street
17 * Costa Mesa, CA 92626
18 */
19
20 #include <linux/reboot.h>
21 #include <linux/delay.h>
22 #include <linux/slab.h>
23 #include <linux/interrupt.h>
24 #include <linux/blkdev.h>
25 #include <linux/pci.h>
26 #include <linux/string.h>
27 #include <linux/kernel.h>
28 #include <linux/semaphore.h>
29 #include <linux/iscsi_boot_sysfs.h>
30 #include <linux/module.h>
31 #include <linux/bsg-lib.h>
32
33 #include <scsi/libiscsi.h>
34 #include <scsi/scsi_bsg_iscsi.h>
35 #include <scsi/scsi_netlink.h>
36 #include <scsi/scsi_transport_iscsi.h>
37 #include <scsi/scsi_transport.h>
38 #include <scsi/scsi_cmnd.h>
39 #include <scsi/scsi_device.h>
40 #include <scsi/scsi_host.h>
41 #include <scsi/scsi.h>
42 #include "be_main.h"
43 #include "be_iscsi.h"
44 #include "be_mgmt.h"
45 #include "be_cmds.h"
46
47 static unsigned int be_iopoll_budget = 10;
48 static unsigned int be_max_phys_size = 64;
49 static unsigned int enable_msix = 1;
50
51 MODULE_DEVICE_TABLE(pci, beiscsi_pci_id_table);
52 MODULE_DESCRIPTION(DRV_DESC " " BUILD_STR);
53 MODULE_VERSION(BUILD_STR);
54 MODULE_AUTHOR("Emulex Corporation");
55 MODULE_LICENSE("GPL");
56 module_param(be_iopoll_budget, int, 0);
57 module_param(enable_msix, int, 0);
58 module_param(be_max_phys_size, uint, S_IRUGO);
59 MODULE_PARM_DESC(be_max_phys_size,
60 "Maximum Size (In Kilobytes) of physically contiguous "
61 "memory that can be allocated. Range is 16 - 128");
62
63 #define beiscsi_disp_param(_name)\
64 ssize_t \
65 beiscsi_##_name##_disp(struct device *dev,\
66 struct device_attribute *attrib, char *buf) \
67 { \
68 struct Scsi_Host *shost = class_to_shost(dev);\
69 struct beiscsi_hba *phba = iscsi_host_priv(shost); \
70 uint32_t param_val = 0; \
71 param_val = phba->attr_##_name;\
72 return snprintf(buf, PAGE_SIZE, "%d\n",\
73 phba->attr_##_name);\
74 }
75
76 #define beiscsi_change_param(_name, _minval, _maxval, _defaval)\
77 int \
78 beiscsi_##_name##_change(struct beiscsi_hba *phba, uint32_t val)\
79 {\
80 if (val >= _minval && val <= _maxval) {\
81 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,\
82 "BA_%d : beiscsi_"#_name" updated "\
83 "from 0x%x ==> 0x%x\n",\
84 phba->attr_##_name, val); \
85 phba->attr_##_name = val;\
86 return 0;\
87 } \
88 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, \
89 "BA_%d beiscsi_"#_name" attribute "\
90 "cannot be updated to 0x%x, "\
91 "range allowed is ["#_minval" - "#_maxval"]\n", val);\
92 return -EINVAL;\
93 }
94
95 #define beiscsi_store_param(_name) \
96 ssize_t \
97 beiscsi_##_name##_store(struct device *dev,\
98 struct device_attribute *attr, const char *buf,\
99 size_t count) \
100 { \
101 struct Scsi_Host *shost = class_to_shost(dev);\
102 struct beiscsi_hba *phba = iscsi_host_priv(shost);\
103 uint32_t param_val = 0;\
104 if (!isdigit(buf[0]))\
105 return -EINVAL;\
106 if (sscanf(buf, "%i", &param_val) != 1)\
107 return -EINVAL;\
108 if (beiscsi_##_name##_change(phba, param_val) == 0) \
109 return strlen(buf);\
110 else \
111 return -EINVAL;\
112 }
113
114 #define beiscsi_init_param(_name, _minval, _maxval, _defval) \
115 int \
116 beiscsi_##_name##_init(struct beiscsi_hba *phba, uint32_t val) \
117 { \
118 if (val >= _minval && val <= _maxval) {\
119 phba->attr_##_name = val;\
120 return 0;\
121 } \
122 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,\
123 "BA_%d beiscsi_"#_name" attribute " \
124 "cannot be updated to 0x%x, "\
125 "range allowed is ["#_minval" - "#_maxval"]\n", val);\
126 phba->attr_##_name = _defval;\
127 return -EINVAL;\
128 }
129
130 #define BEISCSI_RW_ATTR(_name, _minval, _maxval, _defval, _descp) \
131 static uint beiscsi_##_name = _defval;\
132 module_param(beiscsi_##_name, uint, S_IRUGO);\
133 MODULE_PARM_DESC(beiscsi_##_name, _descp);\
134 beiscsi_disp_param(_name)\
135 beiscsi_change_param(_name, _minval, _maxval, _defval)\
136 beiscsi_store_param(_name)\
137 beiscsi_init_param(_name, _minval, _maxval, _defval)\
138 DEVICE_ATTR(beiscsi_##_name, S_IRUGO | S_IWUSR,\
139 beiscsi_##_name##_disp, beiscsi_##_name##_store)
140
141 /*
142 * When new log level added update the
143 * the MAX allowed value for log_enable
144 */
145 BEISCSI_RW_ATTR(log_enable, 0x00,
146 0xFF, 0x00, "Enable logging Bit Mask\n"
147 "\t\t\t\tInitialization Events : 0x01\n"
148 "\t\t\t\tMailbox Events : 0x02\n"
149 "\t\t\t\tMiscellaneous Events : 0x04\n"
150 "\t\t\t\tError Handling : 0x08\n"
151 "\t\t\t\tIO Path Events : 0x10\n"
152 "\t\t\t\tConfiguration Path : 0x20\n"
153 "\t\t\t\tiSCSI Protocol : 0x40\n");
154
155 DEVICE_ATTR(beiscsi_drvr_ver, S_IRUGO, beiscsi_drvr_ver_disp, NULL);
156 DEVICE_ATTR(beiscsi_adapter_family, S_IRUGO, beiscsi_adap_family_disp, NULL);
157 DEVICE_ATTR(beiscsi_fw_ver, S_IRUGO, beiscsi_fw_ver_disp, NULL);
158 DEVICE_ATTR(beiscsi_phys_port, S_IRUGO, beiscsi_phys_port_disp, NULL);
159 DEVICE_ATTR(beiscsi_active_session_count, S_IRUGO,
160 beiscsi_active_session_disp, NULL);
161 DEVICE_ATTR(beiscsi_free_session_count, S_IRUGO,
162 beiscsi_free_session_disp, NULL);
163 struct device_attribute *beiscsi_attrs[] = {
164 &dev_attr_beiscsi_log_enable,
165 &dev_attr_beiscsi_drvr_ver,
166 &dev_attr_beiscsi_adapter_family,
167 &dev_attr_beiscsi_fw_ver,
168 &dev_attr_beiscsi_active_session_count,
169 &dev_attr_beiscsi_free_session_count,
170 &dev_attr_beiscsi_phys_port,
171 NULL,
172 };
173
174 static char const *cqe_desc[] = {
175 "RESERVED_DESC",
176 "SOL_CMD_COMPLETE",
177 "SOL_CMD_KILLED_DATA_DIGEST_ERR",
178 "CXN_KILLED_PDU_SIZE_EXCEEDS_DSL",
179 "CXN_KILLED_BURST_LEN_MISMATCH",
180 "CXN_KILLED_AHS_RCVD",
181 "CXN_KILLED_HDR_DIGEST_ERR",
182 "CXN_KILLED_UNKNOWN_HDR",
183 "CXN_KILLED_STALE_ITT_TTT_RCVD",
184 "CXN_KILLED_INVALID_ITT_TTT_RCVD",
185 "CXN_KILLED_RST_RCVD",
186 "CXN_KILLED_TIMED_OUT",
187 "CXN_KILLED_RST_SENT",
188 "CXN_KILLED_FIN_RCVD",
189 "CXN_KILLED_BAD_UNSOL_PDU_RCVD",
190 "CXN_KILLED_BAD_WRB_INDEX_ERROR",
191 "CXN_KILLED_OVER_RUN_RESIDUAL",
192 "CXN_KILLED_UNDER_RUN_RESIDUAL",
193 "CMD_KILLED_INVALID_STATSN_RCVD",
194 "CMD_KILLED_INVALID_R2T_RCVD",
195 "CMD_CXN_KILLED_LUN_INVALID",
196 "CMD_CXN_KILLED_ICD_INVALID",
197 "CMD_CXN_KILLED_ITT_INVALID",
198 "CMD_CXN_KILLED_SEQ_OUTOFORDER",
199 "CMD_CXN_KILLED_INVALID_DATASN_RCVD",
200 "CXN_INVALIDATE_NOTIFY",
201 "CXN_INVALIDATE_INDEX_NOTIFY",
202 "CMD_INVALIDATED_NOTIFY",
203 "UNSOL_HDR_NOTIFY",
204 "UNSOL_DATA_NOTIFY",
205 "UNSOL_DATA_DIGEST_ERROR_NOTIFY",
206 "DRIVERMSG_NOTIFY",
207 "CXN_KILLED_CMND_DATA_NOT_ON_SAME_CONN",
208 "SOL_CMD_KILLED_DIF_ERR",
209 "CXN_KILLED_SYN_RCVD",
210 "CXN_KILLED_IMM_DATA_RCVD"
211 };
212
213 static int beiscsi_slave_configure(struct scsi_device *sdev)
214 {
215 blk_queue_max_segment_size(sdev->request_queue, 65536);
216 return 0;
217 }
218
219 static int beiscsi_eh_abort(struct scsi_cmnd *sc)
220 {
221 struct iscsi_cls_session *cls_session;
222 struct iscsi_task *aborted_task = (struct iscsi_task *)sc->SCp.ptr;
223 struct beiscsi_io_task *aborted_io_task;
224 struct iscsi_conn *conn;
225 struct beiscsi_conn *beiscsi_conn;
226 struct beiscsi_hba *phba;
227 struct iscsi_session *session;
228 struct invalidate_command_table *inv_tbl;
229 struct be_dma_mem nonemb_cmd;
230 unsigned int cid, tag, num_invalidate;
231
232 cls_session = starget_to_session(scsi_target(sc->device));
233 session = cls_session->dd_data;
234
235 spin_lock_bh(&session->lock);
236 if (!aborted_task || !aborted_task->sc) {
237 /* we raced */
238 spin_unlock_bh(&session->lock);
239 return SUCCESS;
240 }
241
242 aborted_io_task = aborted_task->dd_data;
243 if (!aborted_io_task->scsi_cmnd) {
244 /* raced or invalid command */
245 spin_unlock_bh(&session->lock);
246 return SUCCESS;
247 }
248 spin_unlock_bh(&session->lock);
249 /* Invalidate WRB Posted for this Task */
250 AMAP_SET_BITS(struct amap_iscsi_wrb, invld,
251 aborted_io_task->pwrb_handle->pwrb,
252 1);
253
254 conn = aborted_task->conn;
255 beiscsi_conn = conn->dd_data;
256 phba = beiscsi_conn->phba;
257
258 /* invalidate iocb */
259 cid = beiscsi_conn->beiscsi_conn_cid;
260 inv_tbl = phba->inv_tbl;
261 memset(inv_tbl, 0x0, sizeof(*inv_tbl));
262 inv_tbl->cid = cid;
263 inv_tbl->icd = aborted_io_task->psgl_handle->sgl_index;
264 num_invalidate = 1;
265 nonemb_cmd.va = pci_alloc_consistent(phba->ctrl.pdev,
266 sizeof(struct invalidate_commands_params_in),
267 &nonemb_cmd.dma);
268 if (nonemb_cmd.va == NULL) {
269 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_EH,
270 "BM_%d : Failed to allocate memory for"
271 "mgmt_invalidate_icds\n");
272 return FAILED;
273 }
274 nonemb_cmd.size = sizeof(struct invalidate_commands_params_in);
275
276 tag = mgmt_invalidate_icds(phba, inv_tbl, num_invalidate,
277 cid, &nonemb_cmd);
278 if (!tag) {
279 beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_EH,
280 "BM_%d : mgmt_invalidate_icds could not be"
281 "submitted\n");
282 pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size,
283 nonemb_cmd.va, nonemb_cmd.dma);
284
285 return FAILED;
286 }
287
288 beiscsi_mccq_compl(phba, tag, NULL, nonemb_cmd.va);
289 pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size,
290 nonemb_cmd.va, nonemb_cmd.dma);
291 return iscsi_eh_abort(sc);
292 }
293
294 static int beiscsi_eh_device_reset(struct scsi_cmnd *sc)
295 {
296 struct iscsi_task *abrt_task;
297 struct beiscsi_io_task *abrt_io_task;
298 struct iscsi_conn *conn;
299 struct beiscsi_conn *beiscsi_conn;
300 struct beiscsi_hba *phba;
301 struct iscsi_session *session;
302 struct iscsi_cls_session *cls_session;
303 struct invalidate_command_table *inv_tbl;
304 struct be_dma_mem nonemb_cmd;
305 unsigned int cid, tag, i, num_invalidate;
306
307 /* invalidate iocbs */
308 cls_session = starget_to_session(scsi_target(sc->device));
309 session = cls_session->dd_data;
310 spin_lock_bh(&session->lock);
311 if (!session->leadconn || session->state != ISCSI_STATE_LOGGED_IN) {
312 spin_unlock_bh(&session->lock);
313 return FAILED;
314 }
315 conn = session->leadconn;
316 beiscsi_conn = conn->dd_data;
317 phba = beiscsi_conn->phba;
318 cid = beiscsi_conn->beiscsi_conn_cid;
319 inv_tbl = phba->inv_tbl;
320 memset(inv_tbl, 0x0, sizeof(*inv_tbl) * BE2_CMDS_PER_CXN);
321 num_invalidate = 0;
322 for (i = 0; i < conn->session->cmds_max; i++) {
323 abrt_task = conn->session->cmds[i];
324 abrt_io_task = abrt_task->dd_data;
325 if (!abrt_task->sc || abrt_task->state == ISCSI_TASK_FREE)
326 continue;
327
328 if (sc->device->lun != abrt_task->sc->device->lun)
329 continue;
330
331 /* Invalidate WRB Posted for this Task */
332 AMAP_SET_BITS(struct amap_iscsi_wrb, invld,
333 abrt_io_task->pwrb_handle->pwrb,
334 1);
335
336 inv_tbl->cid = cid;
337 inv_tbl->icd = abrt_io_task->psgl_handle->sgl_index;
338 num_invalidate++;
339 inv_tbl++;
340 }
341 spin_unlock_bh(&session->lock);
342 inv_tbl = phba->inv_tbl;
343
344 nonemb_cmd.va = pci_alloc_consistent(phba->ctrl.pdev,
345 sizeof(struct invalidate_commands_params_in),
346 &nonemb_cmd.dma);
347 if (nonemb_cmd.va == NULL) {
348 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_EH,
349 "BM_%d : Failed to allocate memory for"
350 "mgmt_invalidate_icds\n");
351 return FAILED;
352 }
353 nonemb_cmd.size = sizeof(struct invalidate_commands_params_in);
354 memset(nonemb_cmd.va, 0, nonemb_cmd.size);
355 tag = mgmt_invalidate_icds(phba, inv_tbl, num_invalidate,
356 cid, &nonemb_cmd);
357 if (!tag) {
358 beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_EH,
359 "BM_%d : mgmt_invalidate_icds could not be"
360 " submitted\n");
361 pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size,
362 nonemb_cmd.va, nonemb_cmd.dma);
363 return FAILED;
364 }
365
366 beiscsi_mccq_compl(phba, tag, NULL, nonemb_cmd.va);
367 pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size,
368 nonemb_cmd.va, nonemb_cmd.dma);
369 return iscsi_eh_device_reset(sc);
370 }
371
372 static ssize_t beiscsi_show_boot_tgt_info(void *data, int type, char *buf)
373 {
374 struct beiscsi_hba *phba = data;
375 struct mgmt_session_info *boot_sess = &phba->boot_sess;
376 struct mgmt_conn_info *boot_conn = &boot_sess->conn_list[0];
377 char *str = buf;
378 int rc;
379
380 switch (type) {
381 case ISCSI_BOOT_TGT_NAME:
382 rc = sprintf(buf, "%.*s\n",
383 (int)strlen(boot_sess->target_name),
384 (char *)&boot_sess->target_name);
385 break;
386 case ISCSI_BOOT_TGT_IP_ADDR:
387 if (boot_conn->dest_ipaddr.ip_type == 0x1)
388 rc = sprintf(buf, "%pI4\n",
389 (char *)&boot_conn->dest_ipaddr.addr);
390 else
391 rc = sprintf(str, "%pI6\n",
392 (char *)&boot_conn->dest_ipaddr.addr);
393 break;
394 case ISCSI_BOOT_TGT_PORT:
395 rc = sprintf(str, "%d\n", boot_conn->dest_port);
396 break;
397
398 case ISCSI_BOOT_TGT_CHAP_NAME:
399 rc = sprintf(str, "%.*s\n",
400 boot_conn->negotiated_login_options.auth_data.chap.
401 target_chap_name_length,
402 (char *)&boot_conn->negotiated_login_options.
403 auth_data.chap.target_chap_name);
404 break;
405 case ISCSI_BOOT_TGT_CHAP_SECRET:
406 rc = sprintf(str, "%.*s\n",
407 boot_conn->negotiated_login_options.auth_data.chap.
408 target_secret_length,
409 (char *)&boot_conn->negotiated_login_options.
410 auth_data.chap.target_secret);
411 break;
412 case ISCSI_BOOT_TGT_REV_CHAP_NAME:
413 rc = sprintf(str, "%.*s\n",
414 boot_conn->negotiated_login_options.auth_data.chap.
415 intr_chap_name_length,
416 (char *)&boot_conn->negotiated_login_options.
417 auth_data.chap.intr_chap_name);
418 break;
419 case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
420 rc = sprintf(str, "%.*s\n",
421 boot_conn->negotiated_login_options.auth_data.chap.
422 intr_secret_length,
423 (char *)&boot_conn->negotiated_login_options.
424 auth_data.chap.intr_secret);
425 break;
426 case ISCSI_BOOT_TGT_FLAGS:
427 rc = sprintf(str, "2\n");
428 break;
429 case ISCSI_BOOT_TGT_NIC_ASSOC:
430 rc = sprintf(str, "0\n");
431 break;
432 default:
433 rc = -ENOSYS;
434 break;
435 }
436 return rc;
437 }
438
439 static ssize_t beiscsi_show_boot_ini_info(void *data, int type, char *buf)
440 {
441 struct beiscsi_hba *phba = data;
442 char *str = buf;
443 int rc;
444
445 switch (type) {
446 case ISCSI_BOOT_INI_INITIATOR_NAME:
447 rc = sprintf(str, "%s\n", phba->boot_sess.initiator_iscsiname);
448 break;
449 default:
450 rc = -ENOSYS;
451 break;
452 }
453 return rc;
454 }
455
456 static ssize_t beiscsi_show_boot_eth_info(void *data, int type, char *buf)
457 {
458 struct beiscsi_hba *phba = data;
459 char *str = buf;
460 int rc;
461
462 switch (type) {
463 case ISCSI_BOOT_ETH_FLAGS:
464 rc = sprintf(str, "2\n");
465 break;
466 case ISCSI_BOOT_ETH_INDEX:
467 rc = sprintf(str, "0\n");
468 break;
469 case ISCSI_BOOT_ETH_MAC:
470 rc = beiscsi_get_macaddr(str, phba);
471 break;
472 default:
473 rc = -ENOSYS;
474 break;
475 }
476 return rc;
477 }
478
479
480 static umode_t beiscsi_tgt_get_attr_visibility(void *data, int type)
481 {
482 umode_t rc;
483
484 switch (type) {
485 case ISCSI_BOOT_TGT_NAME:
486 case ISCSI_BOOT_TGT_IP_ADDR:
487 case ISCSI_BOOT_TGT_PORT:
488 case ISCSI_BOOT_TGT_CHAP_NAME:
489 case ISCSI_BOOT_TGT_CHAP_SECRET:
490 case ISCSI_BOOT_TGT_REV_CHAP_NAME:
491 case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
492 case ISCSI_BOOT_TGT_NIC_ASSOC:
493 case ISCSI_BOOT_TGT_FLAGS:
494 rc = S_IRUGO;
495 break;
496 default:
497 rc = 0;
498 break;
499 }
500 return rc;
501 }
502
503 static umode_t beiscsi_ini_get_attr_visibility(void *data, int type)
504 {
505 umode_t rc;
506
507 switch (type) {
508 case ISCSI_BOOT_INI_INITIATOR_NAME:
509 rc = S_IRUGO;
510 break;
511 default:
512 rc = 0;
513 break;
514 }
515 return rc;
516 }
517
518
519 static umode_t beiscsi_eth_get_attr_visibility(void *data, int type)
520 {
521 umode_t rc;
522
523 switch (type) {
524 case ISCSI_BOOT_ETH_FLAGS:
525 case ISCSI_BOOT_ETH_MAC:
526 case ISCSI_BOOT_ETH_INDEX:
527 rc = S_IRUGO;
528 break;
529 default:
530 rc = 0;
531 break;
532 }
533 return rc;
534 }
535
536 /*------------------- PCI Driver operations and data ----------------- */
537 static DEFINE_PCI_DEVICE_TABLE(beiscsi_pci_id_table) = {
538 { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID1) },
539 { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID2) },
540 { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID1) },
541 { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID2) },
542 { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID3) },
543 { PCI_DEVICE(ELX_VENDOR_ID, OC_SKH_ID1) },
544 { 0 }
545 };
546 MODULE_DEVICE_TABLE(pci, beiscsi_pci_id_table);
547
548
549 static struct scsi_host_template beiscsi_sht = {
550 .module = THIS_MODULE,
551 .name = "Emulex 10Gbe open-iscsi Initiator Driver",
552 .proc_name = DRV_NAME,
553 .queuecommand = iscsi_queuecommand,
554 .change_queue_depth = iscsi_change_queue_depth,
555 .slave_configure = beiscsi_slave_configure,
556 .target_alloc = iscsi_target_alloc,
557 .eh_abort_handler = beiscsi_eh_abort,
558 .eh_device_reset_handler = beiscsi_eh_device_reset,
559 .eh_target_reset_handler = iscsi_eh_session_reset,
560 .shost_attrs = beiscsi_attrs,
561 .sg_tablesize = BEISCSI_SGLIST_ELEMENTS,
562 .can_queue = BE2_IO_DEPTH,
563 .this_id = -1,
564 .max_sectors = BEISCSI_MAX_SECTORS,
565 .cmd_per_lun = BEISCSI_CMD_PER_LUN,
566 .use_clustering = ENABLE_CLUSTERING,
567 .vendor_id = SCSI_NL_VID_TYPE_PCI | BE_VENDOR_ID,
568
569 };
570
571 static struct scsi_transport_template *beiscsi_scsi_transport;
572
573 static struct beiscsi_hba *beiscsi_hba_alloc(struct pci_dev *pcidev)
574 {
575 struct beiscsi_hba *phba;
576 struct Scsi_Host *shost;
577
578 shost = iscsi_host_alloc(&beiscsi_sht, sizeof(*phba), 0);
579 if (!shost) {
580 dev_err(&pcidev->dev,
581 "beiscsi_hba_alloc - iscsi_host_alloc failed\n");
582 return NULL;
583 }
584 shost->dma_boundary = pcidev->dma_mask;
585 shost->max_id = BE2_MAX_SESSIONS;
586 shost->max_channel = 0;
587 shost->max_cmd_len = BEISCSI_MAX_CMD_LEN;
588 shost->max_lun = BEISCSI_NUM_MAX_LUN;
589 shost->transportt = beiscsi_scsi_transport;
590 phba = iscsi_host_priv(shost);
591 memset(phba, 0, sizeof(*phba));
592 phba->shost = shost;
593 phba->pcidev = pci_dev_get(pcidev);
594 pci_set_drvdata(pcidev, phba);
595 phba->interface_handle = 0xFFFFFFFF;
596
597 if (iscsi_host_add(shost, &phba->pcidev->dev))
598 goto free_devices;
599
600 return phba;
601
602 free_devices:
603 pci_dev_put(phba->pcidev);
604 iscsi_host_free(phba->shost);
605 return NULL;
606 }
607
608 static void beiscsi_unmap_pci_function(struct beiscsi_hba *phba)
609 {
610 if (phba->csr_va) {
611 iounmap(phba->csr_va);
612 phba->csr_va = NULL;
613 }
614 if (phba->db_va) {
615 iounmap(phba->db_va);
616 phba->db_va = NULL;
617 }
618 if (phba->pci_va) {
619 iounmap(phba->pci_va);
620 phba->pci_va = NULL;
621 }
622 }
623
624 static int beiscsi_map_pci_bars(struct beiscsi_hba *phba,
625 struct pci_dev *pcidev)
626 {
627 u8 __iomem *addr;
628 int pcicfg_reg;
629
630 addr = ioremap_nocache(pci_resource_start(pcidev, 2),
631 pci_resource_len(pcidev, 2));
632 if (addr == NULL)
633 return -ENOMEM;
634 phba->ctrl.csr = addr;
635 phba->csr_va = addr;
636 phba->csr_pa.u.a64.address = pci_resource_start(pcidev, 2);
637
638 addr = ioremap_nocache(pci_resource_start(pcidev, 4), 128 * 1024);
639 if (addr == NULL)
640 goto pci_map_err;
641 phba->ctrl.db = addr;
642 phba->db_va = addr;
643 phba->db_pa.u.a64.address = pci_resource_start(pcidev, 4);
644
645 if (phba->generation == BE_GEN2)
646 pcicfg_reg = 1;
647 else
648 pcicfg_reg = 0;
649
650 addr = ioremap_nocache(pci_resource_start(pcidev, pcicfg_reg),
651 pci_resource_len(pcidev, pcicfg_reg));
652
653 if (addr == NULL)
654 goto pci_map_err;
655 phba->ctrl.pcicfg = addr;
656 phba->pci_va = addr;
657 phba->pci_pa.u.a64.address = pci_resource_start(pcidev, pcicfg_reg);
658 return 0;
659
660 pci_map_err:
661 beiscsi_unmap_pci_function(phba);
662 return -ENOMEM;
663 }
664
665 static int beiscsi_enable_pci(struct pci_dev *pcidev)
666 {
667 int ret;
668
669 ret = pci_enable_device(pcidev);
670 if (ret) {
671 dev_err(&pcidev->dev,
672 "beiscsi_enable_pci - enable device failed\n");
673 return ret;
674 }
675
676 pci_set_master(pcidev);
677 if (pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(64))) {
678 ret = pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(32));
679 if (ret) {
680 dev_err(&pcidev->dev, "Could not set PCI DMA Mask\n");
681 pci_disable_device(pcidev);
682 return ret;
683 }
684 }
685 return 0;
686 }
687
688 static int be_ctrl_init(struct beiscsi_hba *phba, struct pci_dev *pdev)
689 {
690 struct be_ctrl_info *ctrl = &phba->ctrl;
691 struct be_dma_mem *mbox_mem_alloc = &ctrl->mbox_mem_alloced;
692 struct be_dma_mem *mbox_mem_align = &ctrl->mbox_mem;
693 int status = 0;
694
695 ctrl->pdev = pdev;
696 status = beiscsi_map_pci_bars(phba, pdev);
697 if (status)
698 return status;
699 mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16;
700 mbox_mem_alloc->va = pci_alloc_consistent(pdev,
701 mbox_mem_alloc->size,
702 &mbox_mem_alloc->dma);
703 if (!mbox_mem_alloc->va) {
704 beiscsi_unmap_pci_function(phba);
705 return -ENOMEM;
706 }
707
708 mbox_mem_align->size = sizeof(struct be_mcc_mailbox);
709 mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16);
710 mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16);
711 memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox));
712 spin_lock_init(&ctrl->mbox_lock);
713 spin_lock_init(&phba->ctrl.mcc_lock);
714 spin_lock_init(&phba->ctrl.mcc_cq_lock);
715
716 return status;
717 }
718
719 /**
720 * beiscsi_get_params()- Set the config paramters
721 * @phba: ptr device priv structure
722 **/
723 static void beiscsi_get_params(struct beiscsi_hba *phba)
724 {
725 uint32_t total_cid_count = 0;
726 uint32_t total_icd_count = 0;
727 uint8_t ulp_num = 0;
728
729 total_cid_count = BEISCSI_GET_CID_COUNT(phba, BEISCSI_ULP0) +
730 BEISCSI_GET_CID_COUNT(phba, BEISCSI_ULP1);
731
732 for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
733 uint32_t align_mask = 0;
734 uint32_t icd_post_per_page = 0;
735 uint32_t icd_count_unavailable = 0;
736 uint32_t icd_start = 0, icd_count = 0;
737 uint32_t icd_start_align = 0, icd_count_align = 0;
738
739 if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) {
740 icd_start = phba->fw_config.iscsi_icd_start[ulp_num];
741 icd_count = phba->fw_config.iscsi_icd_count[ulp_num];
742
743 /* Get ICD count that can be posted on each page */
744 icd_post_per_page = (PAGE_SIZE / (BE2_SGE *
745 sizeof(struct iscsi_sge)));
746 align_mask = (icd_post_per_page - 1);
747
748 /* Check if icd_start is aligned ICD per page posting */
749 if (icd_start % icd_post_per_page) {
750 icd_start_align = ((icd_start +
751 icd_post_per_page) &
752 ~(align_mask));
753 phba->fw_config.
754 iscsi_icd_start[ulp_num] =
755 icd_start_align;
756 }
757
758 icd_count_align = (icd_count & ~align_mask);
759
760 /* ICD discarded in the process of alignment */
761 if (icd_start_align)
762 icd_count_unavailable = ((icd_start_align -
763 icd_start) +
764 (icd_count -
765 icd_count_align));
766
767 /* Updated ICD count available */
768 phba->fw_config.iscsi_icd_count[ulp_num] = (icd_count -
769 icd_count_unavailable);
770
771 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
772 "BM_%d : Aligned ICD values\n"
773 "\t ICD Start : %d\n"
774 "\t ICD Count : %d\n"
775 "\t ICD Discarded : %d\n",
776 phba->fw_config.
777 iscsi_icd_start[ulp_num],
778 phba->fw_config.
779 iscsi_icd_count[ulp_num],
780 icd_count_unavailable);
781 break;
782 }
783 }
784
785 total_icd_count = phba->fw_config.iscsi_icd_count[ulp_num];
786 phba->params.ios_per_ctrl = (total_icd_count -
787 (total_cid_count +
788 BE2_TMFS + BE2_NOPOUT_REQ));
789 phba->params.cxns_per_ctrl = total_cid_count;
790 phba->params.asyncpdus_per_ctrl = total_cid_count;
791 phba->params.icds_per_ctrl = total_icd_count;
792 phba->params.num_sge_per_io = BE2_SGE;
793 phba->params.defpdu_hdr_sz = BE2_DEFPDU_HDR_SZ;
794 phba->params.defpdu_data_sz = BE2_DEFPDU_DATA_SZ;
795 phba->params.eq_timer = 64;
796 phba->params.num_eq_entries = 1024;
797 phba->params.num_cq_entries = 1024;
798 phba->params.wrbs_per_cxn = 256;
799 }
800
801 static void hwi_ring_eq_db(struct beiscsi_hba *phba,
802 unsigned int id, unsigned int clr_interrupt,
803 unsigned int num_processed,
804 unsigned char rearm, unsigned char event)
805 {
806 u32 val = 0;
807 val |= id & DB_EQ_RING_ID_MASK;
808 if (rearm)
809 val |= 1 << DB_EQ_REARM_SHIFT;
810 if (clr_interrupt)
811 val |= 1 << DB_EQ_CLR_SHIFT;
812 if (event)
813 val |= 1 << DB_EQ_EVNT_SHIFT;
814 val |= num_processed << DB_EQ_NUM_POPPED_SHIFT;
815 iowrite32(val, phba->db_va + DB_EQ_OFFSET);
816 }
817
818 /**
819 * be_isr_mcc - The isr routine of the driver.
820 * @irq: Not used
821 * @dev_id: Pointer to host adapter structure
822 */
823 static irqreturn_t be_isr_mcc(int irq, void *dev_id)
824 {
825 struct beiscsi_hba *phba;
826 struct be_eq_entry *eqe = NULL;
827 struct be_queue_info *eq;
828 struct be_queue_info *mcc;
829 unsigned int num_eq_processed;
830 struct be_eq_obj *pbe_eq;
831 unsigned long flags;
832
833 pbe_eq = dev_id;
834 eq = &pbe_eq->q;
835 phba = pbe_eq->phba;
836 mcc = &phba->ctrl.mcc_obj.cq;
837 eqe = queue_tail_node(eq);
838
839 num_eq_processed = 0;
840
841 while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32]
842 & EQE_VALID_MASK) {
843 if (((eqe->dw[offsetof(struct amap_eq_entry,
844 resource_id) / 32] &
845 EQE_RESID_MASK) >> 16) == mcc->id) {
846 spin_lock_irqsave(&phba->isr_lock, flags);
847 pbe_eq->todo_mcc_cq = true;
848 spin_unlock_irqrestore(&phba->isr_lock, flags);
849 }
850 AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0);
851 queue_tail_inc(eq);
852 eqe = queue_tail_node(eq);
853 num_eq_processed++;
854 }
855 if (pbe_eq->todo_mcc_cq)
856 queue_work(phba->wq, &pbe_eq->work_cqs);
857 if (num_eq_processed)
858 hwi_ring_eq_db(phba, eq->id, 1, num_eq_processed, 1, 1);
859
860 return IRQ_HANDLED;
861 }
862
863 /**
864 * be_isr_msix - The isr routine of the driver.
865 * @irq: Not used
866 * @dev_id: Pointer to host adapter structure
867 */
868 static irqreturn_t be_isr_msix(int irq, void *dev_id)
869 {
870 struct beiscsi_hba *phba;
871 struct be_eq_entry *eqe = NULL;
872 struct be_queue_info *eq;
873 struct be_queue_info *cq;
874 unsigned int num_eq_processed;
875 struct be_eq_obj *pbe_eq;
876 unsigned long flags;
877
878 pbe_eq = dev_id;
879 eq = &pbe_eq->q;
880 cq = pbe_eq->cq;
881 eqe = queue_tail_node(eq);
882
883 phba = pbe_eq->phba;
884 num_eq_processed = 0;
885 if (blk_iopoll_enabled) {
886 while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32]
887 & EQE_VALID_MASK) {
888 if (!blk_iopoll_sched_prep(&pbe_eq->iopoll))
889 blk_iopoll_sched(&pbe_eq->iopoll);
890
891 AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0);
892 queue_tail_inc(eq);
893 eqe = queue_tail_node(eq);
894 num_eq_processed++;
895 }
896 } else {
897 while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32]
898 & EQE_VALID_MASK) {
899 spin_lock_irqsave(&phba->isr_lock, flags);
900 pbe_eq->todo_cq = true;
901 spin_unlock_irqrestore(&phba->isr_lock, flags);
902 AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0);
903 queue_tail_inc(eq);
904 eqe = queue_tail_node(eq);
905 num_eq_processed++;
906 }
907
908 if (pbe_eq->todo_cq)
909 queue_work(phba->wq, &pbe_eq->work_cqs);
910 }
911
912 if (num_eq_processed)
913 hwi_ring_eq_db(phba, eq->id, 1, num_eq_processed, 0, 1);
914
915 return IRQ_HANDLED;
916 }
917
918 /**
919 * be_isr - The isr routine of the driver.
920 * @irq: Not used
921 * @dev_id: Pointer to host adapter structure
922 */
923 static irqreturn_t be_isr(int irq, void *dev_id)
924 {
925 struct beiscsi_hba *phba;
926 struct hwi_controller *phwi_ctrlr;
927 struct hwi_context_memory *phwi_context;
928 struct be_eq_entry *eqe = NULL;
929 struct be_queue_info *eq;
930 struct be_queue_info *cq;
931 struct be_queue_info *mcc;
932 unsigned long flags, index;
933 unsigned int num_mcceq_processed, num_ioeq_processed;
934 struct be_ctrl_info *ctrl;
935 struct be_eq_obj *pbe_eq;
936 int isr;
937
938 phba = dev_id;
939 ctrl = &phba->ctrl;
940 isr = ioread32(ctrl->csr + CEV_ISR0_OFFSET +
941 (PCI_FUNC(ctrl->pdev->devfn) * CEV_ISR_SIZE));
942 if (!isr)
943 return IRQ_NONE;
944
945 phwi_ctrlr = phba->phwi_ctrlr;
946 phwi_context = phwi_ctrlr->phwi_ctxt;
947 pbe_eq = &phwi_context->be_eq[0];
948
949 eq = &phwi_context->be_eq[0].q;
950 mcc = &phba->ctrl.mcc_obj.cq;
951 index = 0;
952 eqe = queue_tail_node(eq);
953
954 num_ioeq_processed = 0;
955 num_mcceq_processed = 0;
956 if (blk_iopoll_enabled) {
957 while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32]
958 & EQE_VALID_MASK) {
959 if (((eqe->dw[offsetof(struct amap_eq_entry,
960 resource_id) / 32] &
961 EQE_RESID_MASK) >> 16) == mcc->id) {
962 spin_lock_irqsave(&phba->isr_lock, flags);
963 pbe_eq->todo_mcc_cq = true;
964 spin_unlock_irqrestore(&phba->isr_lock, flags);
965 num_mcceq_processed++;
966 } else {
967 if (!blk_iopoll_sched_prep(&pbe_eq->iopoll))
968 blk_iopoll_sched(&pbe_eq->iopoll);
969 num_ioeq_processed++;
970 }
971 AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0);
972 queue_tail_inc(eq);
973 eqe = queue_tail_node(eq);
974 }
975 if (num_ioeq_processed || num_mcceq_processed) {
976 if (pbe_eq->todo_mcc_cq)
977 queue_work(phba->wq, &pbe_eq->work_cqs);
978
979 if ((num_mcceq_processed) && (!num_ioeq_processed))
980 hwi_ring_eq_db(phba, eq->id, 0,
981 (num_ioeq_processed +
982 num_mcceq_processed) , 1, 1);
983 else
984 hwi_ring_eq_db(phba, eq->id, 0,
985 (num_ioeq_processed +
986 num_mcceq_processed), 0, 1);
987
988 return IRQ_HANDLED;
989 } else
990 return IRQ_NONE;
991 } else {
992 cq = &phwi_context->be_cq[0];
993 while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32]
994 & EQE_VALID_MASK) {
995
996 if (((eqe->dw[offsetof(struct amap_eq_entry,
997 resource_id) / 32] &
998 EQE_RESID_MASK) >> 16) != cq->id) {
999 spin_lock_irqsave(&phba->isr_lock, flags);
1000 pbe_eq->todo_mcc_cq = true;
1001 spin_unlock_irqrestore(&phba->isr_lock, flags);
1002 } else {
1003 spin_lock_irqsave(&phba->isr_lock, flags);
1004 pbe_eq->todo_cq = true;
1005 spin_unlock_irqrestore(&phba->isr_lock, flags);
1006 }
1007 AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0);
1008 queue_tail_inc(eq);
1009 eqe = queue_tail_node(eq);
1010 num_ioeq_processed++;
1011 }
1012 if (pbe_eq->todo_cq || pbe_eq->todo_mcc_cq)
1013 queue_work(phba->wq, &pbe_eq->work_cqs);
1014
1015 if (num_ioeq_processed) {
1016 hwi_ring_eq_db(phba, eq->id, 0,
1017 num_ioeq_processed, 1, 1);
1018 return IRQ_HANDLED;
1019 } else
1020 return IRQ_NONE;
1021 }
1022 }
1023
1024 static int beiscsi_init_irqs(struct beiscsi_hba *phba)
1025 {
1026 struct pci_dev *pcidev = phba->pcidev;
1027 struct hwi_controller *phwi_ctrlr;
1028 struct hwi_context_memory *phwi_context;
1029 int ret, msix_vec, i, j;
1030
1031 phwi_ctrlr = phba->phwi_ctrlr;
1032 phwi_context = phwi_ctrlr->phwi_ctxt;
1033
1034 if (phba->msix_enabled) {
1035 for (i = 0; i < phba->num_cpus; i++) {
1036 phba->msi_name[i] = kzalloc(BEISCSI_MSI_NAME,
1037 GFP_KERNEL);
1038 if (!phba->msi_name[i]) {
1039 ret = -ENOMEM;
1040 goto free_msix_irqs;
1041 }
1042
1043 sprintf(phba->msi_name[i], "beiscsi_%02x_%02x",
1044 phba->shost->host_no, i);
1045 msix_vec = phba->msix_entries[i].vector;
1046 ret = request_irq(msix_vec, be_isr_msix, 0,
1047 phba->msi_name[i],
1048 &phwi_context->be_eq[i]);
1049 if (ret) {
1050 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
1051 "BM_%d : beiscsi_init_irqs-Failed to"
1052 "register msix for i = %d\n",
1053 i);
1054 kfree(phba->msi_name[i]);
1055 goto free_msix_irqs;
1056 }
1057 }
1058 phba->msi_name[i] = kzalloc(BEISCSI_MSI_NAME, GFP_KERNEL);
1059 if (!phba->msi_name[i]) {
1060 ret = -ENOMEM;
1061 goto free_msix_irqs;
1062 }
1063 sprintf(phba->msi_name[i], "beiscsi_mcc_%02x",
1064 phba->shost->host_no);
1065 msix_vec = phba->msix_entries[i].vector;
1066 ret = request_irq(msix_vec, be_isr_mcc, 0, phba->msi_name[i],
1067 &phwi_context->be_eq[i]);
1068 if (ret) {
1069 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT ,
1070 "BM_%d : beiscsi_init_irqs-"
1071 "Failed to register beiscsi_msix_mcc\n");
1072 kfree(phba->msi_name[i]);
1073 goto free_msix_irqs;
1074 }
1075
1076 } else {
1077 ret = request_irq(pcidev->irq, be_isr, IRQF_SHARED,
1078 "beiscsi", phba);
1079 if (ret) {
1080 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
1081 "BM_%d : beiscsi_init_irqs-"
1082 "Failed to register irq\\n");
1083 return ret;
1084 }
1085 }
1086 return 0;
1087 free_msix_irqs:
1088 for (j = i - 1; j >= 0; j--) {
1089 kfree(phba->msi_name[j]);
1090 msix_vec = phba->msix_entries[j].vector;
1091 free_irq(msix_vec, &phwi_context->be_eq[j]);
1092 }
1093 return ret;
1094 }
1095
1096 static void hwi_ring_cq_db(struct beiscsi_hba *phba,
1097 unsigned int id, unsigned int num_processed,
1098 unsigned char rearm, unsigned char event)
1099 {
1100 u32 val = 0;
1101 val |= id & DB_CQ_RING_ID_MASK;
1102 if (rearm)
1103 val |= 1 << DB_CQ_REARM_SHIFT;
1104 val |= num_processed << DB_CQ_NUM_POPPED_SHIFT;
1105 iowrite32(val, phba->db_va + DB_CQ_OFFSET);
1106 }
1107
1108 static unsigned int
1109 beiscsi_process_async_pdu(struct beiscsi_conn *beiscsi_conn,
1110 struct beiscsi_hba *phba,
1111 struct pdu_base *ppdu,
1112 unsigned long pdu_len,
1113 void *pbuffer, unsigned long buf_len)
1114 {
1115 struct iscsi_conn *conn = beiscsi_conn->conn;
1116 struct iscsi_session *session = conn->session;
1117 struct iscsi_task *task;
1118 struct beiscsi_io_task *io_task;
1119 struct iscsi_hdr *login_hdr;
1120
1121 switch (ppdu->dw[offsetof(struct amap_pdu_base, opcode) / 32] &
1122 PDUBASE_OPCODE_MASK) {
1123 case ISCSI_OP_NOOP_IN:
1124 pbuffer = NULL;
1125 buf_len = 0;
1126 break;
1127 case ISCSI_OP_ASYNC_EVENT:
1128 break;
1129 case ISCSI_OP_REJECT:
1130 WARN_ON(!pbuffer);
1131 WARN_ON(!(buf_len == 48));
1132 beiscsi_log(phba, KERN_ERR,
1133 BEISCSI_LOG_CONFIG | BEISCSI_LOG_IO,
1134 "BM_%d : In ISCSI_OP_REJECT\n");
1135 break;
1136 case ISCSI_OP_LOGIN_RSP:
1137 case ISCSI_OP_TEXT_RSP:
1138 task = conn->login_task;
1139 io_task = task->dd_data;
1140 login_hdr = (struct iscsi_hdr *)ppdu;
1141 login_hdr->itt = io_task->libiscsi_itt;
1142 break;
1143 default:
1144 beiscsi_log(phba, KERN_WARNING,
1145 BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG,
1146 "BM_%d : Unrecognized opcode 0x%x in async msg\n",
1147 (ppdu->
1148 dw[offsetof(struct amap_pdu_base, opcode) / 32]
1149 & PDUBASE_OPCODE_MASK));
1150 return 1;
1151 }
1152
1153 spin_lock_bh(&session->lock);
1154 __iscsi_complete_pdu(conn, (struct iscsi_hdr *)ppdu, pbuffer, buf_len);
1155 spin_unlock_bh(&session->lock);
1156 return 0;
1157 }
1158
1159 static struct sgl_handle *alloc_io_sgl_handle(struct beiscsi_hba *phba)
1160 {
1161 struct sgl_handle *psgl_handle;
1162
1163 if (phba->io_sgl_hndl_avbl) {
1164 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_IO,
1165 "BM_%d : In alloc_io_sgl_handle,"
1166 " io_sgl_alloc_index=%d\n",
1167 phba->io_sgl_alloc_index);
1168
1169 psgl_handle = phba->io_sgl_hndl_base[phba->
1170 io_sgl_alloc_index];
1171 phba->io_sgl_hndl_base[phba->io_sgl_alloc_index] = NULL;
1172 phba->io_sgl_hndl_avbl--;
1173 if (phba->io_sgl_alloc_index == (phba->params.
1174 ios_per_ctrl - 1))
1175 phba->io_sgl_alloc_index = 0;
1176 else
1177 phba->io_sgl_alloc_index++;
1178 } else
1179 psgl_handle = NULL;
1180 return psgl_handle;
1181 }
1182
1183 static void
1184 free_io_sgl_handle(struct beiscsi_hba *phba, struct sgl_handle *psgl_handle)
1185 {
1186 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_IO,
1187 "BM_%d : In free_,io_sgl_free_index=%d\n",
1188 phba->io_sgl_free_index);
1189
1190 if (phba->io_sgl_hndl_base[phba->io_sgl_free_index]) {
1191 /*
1192 * this can happen if clean_task is called on a task that
1193 * failed in xmit_task or alloc_pdu.
1194 */
1195 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_IO,
1196 "BM_%d : Double Free in IO SGL io_sgl_free_index=%d,"
1197 "value there=%p\n", phba->io_sgl_free_index,
1198 phba->io_sgl_hndl_base
1199 [phba->io_sgl_free_index]);
1200 return;
1201 }
1202 phba->io_sgl_hndl_base[phba->io_sgl_free_index] = psgl_handle;
1203 phba->io_sgl_hndl_avbl++;
1204 if (phba->io_sgl_free_index == (phba->params.ios_per_ctrl - 1))
1205 phba->io_sgl_free_index = 0;
1206 else
1207 phba->io_sgl_free_index++;
1208 }
1209
1210 /**
1211 * alloc_wrb_handle - To allocate a wrb handle
1212 * @phba: The hba pointer
1213 * @cid: The cid to use for allocation
1214 *
1215 * This happens under session_lock until submission to chip
1216 */
1217 struct wrb_handle *alloc_wrb_handle(struct beiscsi_hba *phba, unsigned int cid)
1218 {
1219 struct hwi_wrb_context *pwrb_context;
1220 struct hwi_controller *phwi_ctrlr;
1221 struct wrb_handle *pwrb_handle, *pwrb_handle_tmp;
1222 uint16_t cri_index = BE_GET_CRI_FROM_CID(cid);
1223
1224 phwi_ctrlr = phba->phwi_ctrlr;
1225 pwrb_context = &phwi_ctrlr->wrb_context[cri_index];
1226 if (pwrb_context->wrb_handles_available >= 2) {
1227 pwrb_handle = pwrb_context->pwrb_handle_base[
1228 pwrb_context->alloc_index];
1229 pwrb_context->wrb_handles_available--;
1230 if (pwrb_context->alloc_index ==
1231 (phba->params.wrbs_per_cxn - 1))
1232 pwrb_context->alloc_index = 0;
1233 else
1234 pwrb_context->alloc_index++;
1235 pwrb_handle_tmp = pwrb_context->pwrb_handle_base[
1236 pwrb_context->alloc_index];
1237 pwrb_handle->nxt_wrb_index = pwrb_handle_tmp->wrb_index;
1238 } else
1239 pwrb_handle = NULL;
1240 return pwrb_handle;
1241 }
1242
1243 /**
1244 * free_wrb_handle - To free the wrb handle back to pool
1245 * @phba: The hba pointer
1246 * @pwrb_context: The context to free from
1247 * @pwrb_handle: The wrb_handle to free
1248 *
1249 * This happens under session_lock until submission to chip
1250 */
1251 static void
1252 free_wrb_handle(struct beiscsi_hba *phba, struct hwi_wrb_context *pwrb_context,
1253 struct wrb_handle *pwrb_handle)
1254 {
1255 pwrb_context->pwrb_handle_base[pwrb_context->free_index] = pwrb_handle;
1256 pwrb_context->wrb_handles_available++;
1257 if (pwrb_context->free_index == (phba->params.wrbs_per_cxn - 1))
1258 pwrb_context->free_index = 0;
1259 else
1260 pwrb_context->free_index++;
1261
1262 beiscsi_log(phba, KERN_INFO,
1263 BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG,
1264 "BM_%d : FREE WRB: pwrb_handle=%p free_index=0x%x"
1265 "wrb_handles_available=%d\n",
1266 pwrb_handle, pwrb_context->free_index,
1267 pwrb_context->wrb_handles_available);
1268 }
1269
1270 static struct sgl_handle *alloc_mgmt_sgl_handle(struct beiscsi_hba *phba)
1271 {
1272 struct sgl_handle *psgl_handle;
1273
1274 if (phba->eh_sgl_hndl_avbl) {
1275 psgl_handle = phba->eh_sgl_hndl_base[phba->eh_sgl_alloc_index];
1276 phba->eh_sgl_hndl_base[phba->eh_sgl_alloc_index] = NULL;
1277 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
1278 "BM_%d : mgmt_sgl_alloc_index=%d=0x%x\n",
1279 phba->eh_sgl_alloc_index,
1280 phba->eh_sgl_alloc_index);
1281
1282 phba->eh_sgl_hndl_avbl--;
1283 if (phba->eh_sgl_alloc_index ==
1284 (phba->params.icds_per_ctrl - phba->params.ios_per_ctrl -
1285 1))
1286 phba->eh_sgl_alloc_index = 0;
1287 else
1288 phba->eh_sgl_alloc_index++;
1289 } else
1290 psgl_handle = NULL;
1291 return psgl_handle;
1292 }
1293
1294 void
1295 free_mgmt_sgl_handle(struct beiscsi_hba *phba, struct sgl_handle *psgl_handle)
1296 {
1297
1298 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
1299 "BM_%d : In free_mgmt_sgl_handle,"
1300 "eh_sgl_free_index=%d\n",
1301 phba->eh_sgl_free_index);
1302
1303 if (phba->eh_sgl_hndl_base[phba->eh_sgl_free_index]) {
1304 /*
1305 * this can happen if clean_task is called on a task that
1306 * failed in xmit_task or alloc_pdu.
1307 */
1308 beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
1309 "BM_%d : Double Free in eh SGL ,"
1310 "eh_sgl_free_index=%d\n",
1311 phba->eh_sgl_free_index);
1312 return;
1313 }
1314 phba->eh_sgl_hndl_base[phba->eh_sgl_free_index] = psgl_handle;
1315 phba->eh_sgl_hndl_avbl++;
1316 if (phba->eh_sgl_free_index ==
1317 (phba->params.icds_per_ctrl - phba->params.ios_per_ctrl - 1))
1318 phba->eh_sgl_free_index = 0;
1319 else
1320 phba->eh_sgl_free_index++;
1321 }
1322
1323 static void
1324 be_complete_io(struct beiscsi_conn *beiscsi_conn,
1325 struct iscsi_task *task,
1326 struct common_sol_cqe *csol_cqe)
1327 {
1328 struct beiscsi_io_task *io_task = task->dd_data;
1329 struct be_status_bhs *sts_bhs =
1330 (struct be_status_bhs *)io_task->cmd_bhs;
1331 struct iscsi_conn *conn = beiscsi_conn->conn;
1332 unsigned char *sense;
1333 u32 resid = 0, exp_cmdsn, max_cmdsn;
1334 u8 rsp, status, flags;
1335
1336 exp_cmdsn = csol_cqe->exp_cmdsn;
1337 max_cmdsn = (csol_cqe->exp_cmdsn +
1338 csol_cqe->cmd_wnd - 1);
1339 rsp = csol_cqe->i_resp;
1340 status = csol_cqe->i_sts;
1341 flags = csol_cqe->i_flags;
1342 resid = csol_cqe->res_cnt;
1343
1344 if (!task->sc) {
1345 if (io_task->scsi_cmnd)
1346 scsi_dma_unmap(io_task->scsi_cmnd);
1347
1348 return;
1349 }
1350 task->sc->result = (DID_OK << 16) | status;
1351 if (rsp != ISCSI_STATUS_CMD_COMPLETED) {
1352 task->sc->result = DID_ERROR << 16;
1353 goto unmap;
1354 }
1355
1356 /* bidi not initially supported */
1357 if (flags & (ISCSI_FLAG_CMD_UNDERFLOW | ISCSI_FLAG_CMD_OVERFLOW)) {
1358 if (!status && (flags & ISCSI_FLAG_CMD_OVERFLOW))
1359 task->sc->result = DID_ERROR << 16;
1360
1361 if (flags & ISCSI_FLAG_CMD_UNDERFLOW) {
1362 scsi_set_resid(task->sc, resid);
1363 if (!status && (scsi_bufflen(task->sc) - resid <
1364 task->sc->underflow))
1365 task->sc->result = DID_ERROR << 16;
1366 }
1367 }
1368
1369 if (status == SAM_STAT_CHECK_CONDITION) {
1370 u16 sense_len;
1371 unsigned short *slen = (unsigned short *)sts_bhs->sense_info;
1372
1373 sense = sts_bhs->sense_info + sizeof(unsigned short);
1374 sense_len = be16_to_cpu(*slen);
1375 memcpy(task->sc->sense_buffer, sense,
1376 min_t(u16, sense_len, SCSI_SENSE_BUFFERSIZE));
1377 }
1378
1379 if (io_task->cmd_bhs->iscsi_hdr.flags & ISCSI_FLAG_CMD_READ)
1380 conn->rxdata_octets += resid;
1381 unmap:
1382 scsi_dma_unmap(io_task->scsi_cmnd);
1383 iscsi_complete_scsi_task(task, exp_cmdsn, max_cmdsn);
1384 }
1385
1386 static void
1387 be_complete_logout(struct beiscsi_conn *beiscsi_conn,
1388 struct iscsi_task *task,
1389 struct common_sol_cqe *csol_cqe)
1390 {
1391 struct iscsi_logout_rsp *hdr;
1392 struct beiscsi_io_task *io_task = task->dd_data;
1393 struct iscsi_conn *conn = beiscsi_conn->conn;
1394
1395 hdr = (struct iscsi_logout_rsp *)task->hdr;
1396 hdr->opcode = ISCSI_OP_LOGOUT_RSP;
1397 hdr->t2wait = 5;
1398 hdr->t2retain = 0;
1399 hdr->flags = csol_cqe->i_flags;
1400 hdr->response = csol_cqe->i_resp;
1401 hdr->exp_cmdsn = cpu_to_be32(csol_cqe->exp_cmdsn);
1402 hdr->max_cmdsn = cpu_to_be32(csol_cqe->exp_cmdsn +
1403 csol_cqe->cmd_wnd - 1);
1404
1405 hdr->dlength[0] = 0;
1406 hdr->dlength[1] = 0;
1407 hdr->dlength[2] = 0;
1408 hdr->hlength = 0;
1409 hdr->itt = io_task->libiscsi_itt;
1410 __iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, NULL, 0);
1411 }
1412
1413 static void
1414 be_complete_tmf(struct beiscsi_conn *beiscsi_conn,
1415 struct iscsi_task *task,
1416 struct common_sol_cqe *csol_cqe)
1417 {
1418 struct iscsi_tm_rsp *hdr;
1419 struct iscsi_conn *conn = beiscsi_conn->conn;
1420 struct beiscsi_io_task *io_task = task->dd_data;
1421
1422 hdr = (struct iscsi_tm_rsp *)task->hdr;
1423 hdr->opcode = ISCSI_OP_SCSI_TMFUNC_RSP;
1424 hdr->flags = csol_cqe->i_flags;
1425 hdr->response = csol_cqe->i_resp;
1426 hdr->exp_cmdsn = cpu_to_be32(csol_cqe->exp_cmdsn);
1427 hdr->max_cmdsn = cpu_to_be32(csol_cqe->exp_cmdsn +
1428 csol_cqe->cmd_wnd - 1);
1429
1430 hdr->itt = io_task->libiscsi_itt;
1431 __iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, NULL, 0);
1432 }
1433
1434 static void
1435 hwi_complete_drvr_msgs(struct beiscsi_conn *beiscsi_conn,
1436 struct beiscsi_hba *phba, struct sol_cqe *psol)
1437 {
1438 struct hwi_wrb_context *pwrb_context;
1439 struct wrb_handle *pwrb_handle = NULL;
1440 struct hwi_controller *phwi_ctrlr;
1441 struct iscsi_task *task;
1442 struct beiscsi_io_task *io_task;
1443 uint16_t wrb_index, cid, cri_index;
1444
1445 phwi_ctrlr = phba->phwi_ctrlr;
1446 if (is_chip_be2_be3r(phba)) {
1447 wrb_index = AMAP_GET_BITS(struct amap_it_dmsg_cqe,
1448 wrb_idx, psol);
1449 cid = AMAP_GET_BITS(struct amap_it_dmsg_cqe,
1450 cid, psol);
1451 } else {
1452 wrb_index = AMAP_GET_BITS(struct amap_it_dmsg_cqe_v2,
1453 wrb_idx, psol);
1454 cid = AMAP_GET_BITS(struct amap_it_dmsg_cqe_v2,
1455 cid, psol);
1456 }
1457
1458 cri_index = BE_GET_CRI_FROM_CID(cid);
1459 pwrb_context = &phwi_ctrlr->wrb_context[cri_index];
1460 pwrb_handle = pwrb_context->pwrb_handle_basestd[wrb_index];
1461 task = pwrb_handle->pio_handle;
1462
1463 io_task = task->dd_data;
1464 memset(io_task->pwrb_handle->pwrb, 0, sizeof(struct iscsi_wrb));
1465 iscsi_put_task(task);
1466 }
1467
1468 static void
1469 be_complete_nopin_resp(struct beiscsi_conn *beiscsi_conn,
1470 struct iscsi_task *task,
1471 struct common_sol_cqe *csol_cqe)
1472 {
1473 struct iscsi_nopin *hdr;
1474 struct iscsi_conn *conn = beiscsi_conn->conn;
1475 struct beiscsi_io_task *io_task = task->dd_data;
1476
1477 hdr = (struct iscsi_nopin *)task->hdr;
1478 hdr->flags = csol_cqe->i_flags;
1479 hdr->exp_cmdsn = cpu_to_be32(csol_cqe->exp_cmdsn);
1480 hdr->max_cmdsn = cpu_to_be32(csol_cqe->exp_cmdsn +
1481 csol_cqe->cmd_wnd - 1);
1482
1483 hdr->opcode = ISCSI_OP_NOOP_IN;
1484 hdr->itt = io_task->libiscsi_itt;
1485 __iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, NULL, 0);
1486 }
1487
1488 static void adapter_get_sol_cqe(struct beiscsi_hba *phba,
1489 struct sol_cqe *psol,
1490 struct common_sol_cqe *csol_cqe)
1491 {
1492 if (is_chip_be2_be3r(phba)) {
1493 csol_cqe->exp_cmdsn = AMAP_GET_BITS(struct amap_sol_cqe,
1494 i_exp_cmd_sn, psol);
1495 csol_cqe->res_cnt = AMAP_GET_BITS(struct amap_sol_cqe,
1496 i_res_cnt, psol);
1497 csol_cqe->cmd_wnd = AMAP_GET_BITS(struct amap_sol_cqe,
1498 i_cmd_wnd, psol);
1499 csol_cqe->wrb_index = AMAP_GET_BITS(struct amap_sol_cqe,
1500 wrb_index, psol);
1501 csol_cqe->cid = AMAP_GET_BITS(struct amap_sol_cqe,
1502 cid, psol);
1503 csol_cqe->hw_sts = AMAP_GET_BITS(struct amap_sol_cqe,
1504 hw_sts, psol);
1505 csol_cqe->i_resp = AMAP_GET_BITS(struct amap_sol_cqe,
1506 i_resp, psol);
1507 csol_cqe->i_sts = AMAP_GET_BITS(struct amap_sol_cqe,
1508 i_sts, psol);
1509 csol_cqe->i_flags = AMAP_GET_BITS(struct amap_sol_cqe,
1510 i_flags, psol);
1511 } else {
1512 csol_cqe->exp_cmdsn = AMAP_GET_BITS(struct amap_sol_cqe_v2,
1513 i_exp_cmd_sn, psol);
1514 csol_cqe->res_cnt = AMAP_GET_BITS(struct amap_sol_cqe_v2,
1515 i_res_cnt, psol);
1516 csol_cqe->wrb_index = AMAP_GET_BITS(struct amap_sol_cqe_v2,
1517 wrb_index, psol);
1518 csol_cqe->cid = AMAP_GET_BITS(struct amap_sol_cqe_v2,
1519 cid, psol);
1520 csol_cqe->hw_sts = AMAP_GET_BITS(struct amap_sol_cqe_v2,
1521 hw_sts, psol);
1522 csol_cqe->cmd_wnd = AMAP_GET_BITS(struct amap_sol_cqe_v2,
1523 i_cmd_wnd, psol);
1524 if (AMAP_GET_BITS(struct amap_sol_cqe_v2,
1525 cmd_cmpl, psol))
1526 csol_cqe->i_sts = AMAP_GET_BITS(struct amap_sol_cqe_v2,
1527 i_sts, psol);
1528 else
1529 csol_cqe->i_resp = AMAP_GET_BITS(struct amap_sol_cqe_v2,
1530 i_sts, psol);
1531 if (AMAP_GET_BITS(struct amap_sol_cqe_v2,
1532 u, psol))
1533 csol_cqe->i_flags = ISCSI_FLAG_CMD_UNDERFLOW;
1534
1535 if (AMAP_GET_BITS(struct amap_sol_cqe_v2,
1536 o, psol))
1537 csol_cqe->i_flags |= ISCSI_FLAG_CMD_OVERFLOW;
1538 }
1539 }
1540
1541
1542 static void hwi_complete_cmd(struct beiscsi_conn *beiscsi_conn,
1543 struct beiscsi_hba *phba, struct sol_cqe *psol)
1544 {
1545 struct hwi_wrb_context *pwrb_context;
1546 struct wrb_handle *pwrb_handle;
1547 struct iscsi_wrb *pwrb = NULL;
1548 struct hwi_controller *phwi_ctrlr;
1549 struct iscsi_task *task;
1550 unsigned int type;
1551 struct iscsi_conn *conn = beiscsi_conn->conn;
1552 struct iscsi_session *session = conn->session;
1553 struct common_sol_cqe csol_cqe = {0};
1554 uint16_t cri_index = 0;
1555
1556 phwi_ctrlr = phba->phwi_ctrlr;
1557
1558 /* Copy the elements to a common structure */
1559 adapter_get_sol_cqe(phba, psol, &csol_cqe);
1560
1561 cri_index = BE_GET_CRI_FROM_CID(csol_cqe.cid);
1562 pwrb_context = &phwi_ctrlr->wrb_context[cri_index];
1563
1564 pwrb_handle = pwrb_context->pwrb_handle_basestd[
1565 csol_cqe.wrb_index];
1566
1567 task = pwrb_handle->pio_handle;
1568 pwrb = pwrb_handle->pwrb;
1569 type = ((struct beiscsi_io_task *)task->dd_data)->wrb_type;
1570
1571 spin_lock_bh(&session->lock);
1572 switch (type) {
1573 case HWH_TYPE_IO:
1574 case HWH_TYPE_IO_RD:
1575 if ((task->hdr->opcode & ISCSI_OPCODE_MASK) ==
1576 ISCSI_OP_NOOP_OUT)
1577 be_complete_nopin_resp(beiscsi_conn, task, &csol_cqe);
1578 else
1579 be_complete_io(beiscsi_conn, task, &csol_cqe);
1580 break;
1581
1582 case HWH_TYPE_LOGOUT:
1583 if ((task->hdr->opcode & ISCSI_OPCODE_MASK) == ISCSI_OP_LOGOUT)
1584 be_complete_logout(beiscsi_conn, task, &csol_cqe);
1585 else
1586 be_complete_tmf(beiscsi_conn, task, &csol_cqe);
1587 break;
1588
1589 case HWH_TYPE_LOGIN:
1590 beiscsi_log(phba, KERN_ERR,
1591 BEISCSI_LOG_CONFIG | BEISCSI_LOG_IO,
1592 "BM_%d :\t\t No HWH_TYPE_LOGIN Expected in"
1593 " hwi_complete_cmd- Solicited path\n");
1594 break;
1595
1596 case HWH_TYPE_NOP:
1597 be_complete_nopin_resp(beiscsi_conn, task, &csol_cqe);
1598 break;
1599
1600 default:
1601 beiscsi_log(phba, KERN_WARNING,
1602 BEISCSI_LOG_CONFIG | BEISCSI_LOG_IO,
1603 "BM_%d : In hwi_complete_cmd, unknown type = %d"
1604 "wrb_index 0x%x CID 0x%x\n", type,
1605 csol_cqe.wrb_index,
1606 csol_cqe.cid);
1607 break;
1608 }
1609
1610 spin_unlock_bh(&session->lock);
1611 }
1612
1613 static struct list_head *hwi_get_async_busy_list(struct hwi_async_pdu_context
1614 *pasync_ctx, unsigned int is_header,
1615 unsigned int host_write_ptr)
1616 {
1617 if (is_header)
1618 return &pasync_ctx->async_entry[host_write_ptr].
1619 header_busy_list;
1620 else
1621 return &pasync_ctx->async_entry[host_write_ptr].data_busy_list;
1622 }
1623
1624 static struct async_pdu_handle *
1625 hwi_get_async_handle(struct beiscsi_hba *phba,
1626 struct beiscsi_conn *beiscsi_conn,
1627 struct hwi_async_pdu_context *pasync_ctx,
1628 struct i_t_dpdu_cqe *pdpdu_cqe, unsigned int *pcq_index)
1629 {
1630 struct be_bus_address phys_addr;
1631 struct list_head *pbusy_list;
1632 struct async_pdu_handle *pasync_handle = NULL;
1633 unsigned char is_header = 0;
1634 unsigned int index, dpl;
1635
1636 if (is_chip_be2_be3r(phba)) {
1637 dpl = AMAP_GET_BITS(struct amap_i_t_dpdu_cqe,
1638 dpl, pdpdu_cqe);
1639 index = AMAP_GET_BITS(struct amap_i_t_dpdu_cqe,
1640 index, pdpdu_cqe);
1641 } else {
1642 dpl = AMAP_GET_BITS(struct amap_i_t_dpdu_cqe_v2,
1643 dpl, pdpdu_cqe);
1644 index = AMAP_GET_BITS(struct amap_i_t_dpdu_cqe_v2,
1645 index, pdpdu_cqe);
1646 }
1647
1648 phys_addr.u.a32.address_lo =
1649 (pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe,
1650 db_addr_lo) / 32] - dpl);
1651 phys_addr.u.a32.address_hi =
1652 pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe,
1653 db_addr_hi) / 32];
1654
1655 phys_addr.u.a64.address =
1656 *((unsigned long long *)(&phys_addr.u.a64.address));
1657
1658 switch (pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, code) / 32]
1659 & PDUCQE_CODE_MASK) {
1660 case UNSOL_HDR_NOTIFY:
1661 is_header = 1;
1662
1663 pbusy_list = hwi_get_async_busy_list(pasync_ctx,
1664 is_header, index);
1665 break;
1666 case UNSOL_DATA_NOTIFY:
1667 pbusy_list = hwi_get_async_busy_list(pasync_ctx,
1668 is_header, index);
1669 break;
1670 default:
1671 pbusy_list = NULL;
1672 beiscsi_log(phba, KERN_WARNING,
1673 BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG,
1674 "BM_%d : Unexpected code=%d\n",
1675 pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe,
1676 code) / 32] & PDUCQE_CODE_MASK);
1677 return NULL;
1678 }
1679
1680 WARN_ON(list_empty(pbusy_list));
1681 list_for_each_entry(pasync_handle, pbusy_list, link) {
1682 if (pasync_handle->pa.u.a64.address == phys_addr.u.a64.address)
1683 break;
1684 }
1685
1686 WARN_ON(!pasync_handle);
1687
1688 pasync_handle->cri = BE_GET_ASYNC_CRI_FROM_CID(
1689 beiscsi_conn->beiscsi_conn_cid);
1690 pasync_handle->is_header = is_header;
1691 pasync_handle->buffer_len = dpl;
1692 *pcq_index = index;
1693
1694 return pasync_handle;
1695 }
1696
1697 static unsigned int
1698 hwi_update_async_writables(struct beiscsi_hba *phba,
1699 struct hwi_async_pdu_context *pasync_ctx,
1700 unsigned int is_header, unsigned int cq_index)
1701 {
1702 struct list_head *pbusy_list;
1703 struct async_pdu_handle *pasync_handle;
1704 unsigned int num_entries, writables = 0;
1705 unsigned int *pep_read_ptr, *pwritables;
1706
1707 num_entries = pasync_ctx->num_entries;
1708 if (is_header) {
1709 pep_read_ptr = &pasync_ctx->async_header.ep_read_ptr;
1710 pwritables = &pasync_ctx->async_header.writables;
1711 } else {
1712 pep_read_ptr = &pasync_ctx->async_data.ep_read_ptr;
1713 pwritables = &pasync_ctx->async_data.writables;
1714 }
1715
1716 while ((*pep_read_ptr) != cq_index) {
1717 (*pep_read_ptr)++;
1718 *pep_read_ptr = (*pep_read_ptr) % num_entries;
1719
1720 pbusy_list = hwi_get_async_busy_list(pasync_ctx, is_header,
1721 *pep_read_ptr);
1722 if (writables == 0)
1723 WARN_ON(list_empty(pbusy_list));
1724
1725 if (!list_empty(pbusy_list)) {
1726 pasync_handle = list_entry(pbusy_list->next,
1727 struct async_pdu_handle,
1728 link);
1729 WARN_ON(!pasync_handle);
1730 pasync_handle->consumed = 1;
1731 }
1732
1733 writables++;
1734 }
1735
1736 if (!writables) {
1737 beiscsi_log(phba, KERN_ERR,
1738 BEISCSI_LOG_CONFIG | BEISCSI_LOG_IO,
1739 "BM_%d : Duplicate notification received - index 0x%x!!\n",
1740 cq_index);
1741 WARN_ON(1);
1742 }
1743
1744 *pwritables = *pwritables + writables;
1745 return 0;
1746 }
1747
1748 static void hwi_free_async_msg(struct beiscsi_hba *phba,
1749 struct hwi_async_pdu_context *pasync_ctx,
1750 unsigned int cri)
1751 {
1752 struct async_pdu_handle *pasync_handle, *tmp_handle;
1753 struct list_head *plist;
1754
1755 plist = &pasync_ctx->async_entry[cri].wait_queue.list;
1756 list_for_each_entry_safe(pasync_handle, tmp_handle, plist, link) {
1757 list_del(&pasync_handle->link);
1758
1759 if (pasync_handle->is_header) {
1760 list_add_tail(&pasync_handle->link,
1761 &pasync_ctx->async_header.free_list);
1762 pasync_ctx->async_header.free_entries++;
1763 } else {
1764 list_add_tail(&pasync_handle->link,
1765 &pasync_ctx->async_data.free_list);
1766 pasync_ctx->async_data.free_entries++;
1767 }
1768 }
1769
1770 INIT_LIST_HEAD(&pasync_ctx->async_entry[cri].wait_queue.list);
1771 pasync_ctx->async_entry[cri].wait_queue.hdr_received = 0;
1772 pasync_ctx->async_entry[cri].wait_queue.bytes_received = 0;
1773 }
1774
1775 static struct phys_addr *
1776 hwi_get_ring_address(struct hwi_async_pdu_context *pasync_ctx,
1777 unsigned int is_header, unsigned int host_write_ptr)
1778 {
1779 struct phys_addr *pasync_sge = NULL;
1780
1781 if (is_header)
1782 pasync_sge = pasync_ctx->async_header.ring_base;
1783 else
1784 pasync_sge = pasync_ctx->async_data.ring_base;
1785
1786 return pasync_sge + host_write_ptr;
1787 }
1788
1789 static void hwi_post_async_buffers(struct beiscsi_hba *phba,
1790 unsigned int is_header, uint8_t ulp_num)
1791 {
1792 struct hwi_controller *phwi_ctrlr;
1793 struct hwi_async_pdu_context *pasync_ctx;
1794 struct async_pdu_handle *pasync_handle;
1795 struct list_head *pfree_link, *pbusy_list;
1796 struct phys_addr *pasync_sge;
1797 unsigned int ring_id, num_entries;
1798 unsigned int host_write_num, doorbell_offset;
1799 unsigned int writables;
1800 unsigned int i = 0;
1801 u32 doorbell = 0;
1802
1803 phwi_ctrlr = phba->phwi_ctrlr;
1804 pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr, ulp_num);
1805 num_entries = pasync_ctx->num_entries;
1806
1807 if (is_header) {
1808 writables = min(pasync_ctx->async_header.writables,
1809 pasync_ctx->async_header.free_entries);
1810 pfree_link = pasync_ctx->async_header.free_list.next;
1811 host_write_num = pasync_ctx->async_header.host_write_ptr;
1812 ring_id = phwi_ctrlr->default_pdu_hdr[ulp_num].id;
1813 doorbell_offset = phwi_ctrlr->default_pdu_hdr[ulp_num].
1814 doorbell_offset;
1815 } else {
1816 writables = min(pasync_ctx->async_data.writables,
1817 pasync_ctx->async_data.free_entries);
1818 pfree_link = pasync_ctx->async_data.free_list.next;
1819 host_write_num = pasync_ctx->async_data.host_write_ptr;
1820 ring_id = phwi_ctrlr->default_pdu_data[ulp_num].id;
1821 doorbell_offset = phwi_ctrlr->default_pdu_data[ulp_num].
1822 doorbell_offset;
1823 }
1824
1825 writables = (writables / 8) * 8;
1826 if (writables) {
1827 for (i = 0; i < writables; i++) {
1828 pbusy_list =
1829 hwi_get_async_busy_list(pasync_ctx, is_header,
1830 host_write_num);
1831 pasync_handle =
1832 list_entry(pfree_link, struct async_pdu_handle,
1833 link);
1834 WARN_ON(!pasync_handle);
1835 pasync_handle->consumed = 0;
1836
1837 pfree_link = pfree_link->next;
1838
1839 pasync_sge = hwi_get_ring_address(pasync_ctx,
1840 is_header, host_write_num);
1841
1842 pasync_sge->hi = pasync_handle->pa.u.a32.address_lo;
1843 pasync_sge->lo = pasync_handle->pa.u.a32.address_hi;
1844
1845 list_move(&pasync_handle->link, pbusy_list);
1846
1847 host_write_num++;
1848 host_write_num = host_write_num % num_entries;
1849 }
1850
1851 if (is_header) {
1852 pasync_ctx->async_header.host_write_ptr =
1853 host_write_num;
1854 pasync_ctx->async_header.free_entries -= writables;
1855 pasync_ctx->async_header.writables -= writables;
1856 pasync_ctx->async_header.busy_entries += writables;
1857 } else {
1858 pasync_ctx->async_data.host_write_ptr = host_write_num;
1859 pasync_ctx->async_data.free_entries -= writables;
1860 pasync_ctx->async_data.writables -= writables;
1861 pasync_ctx->async_data.busy_entries += writables;
1862 }
1863
1864 doorbell |= ring_id & DB_DEF_PDU_RING_ID_MASK;
1865 doorbell |= 1 << DB_DEF_PDU_REARM_SHIFT;
1866 doorbell |= 0 << DB_DEF_PDU_EVENT_SHIFT;
1867 doorbell |= (writables & DB_DEF_PDU_CQPROC_MASK)
1868 << DB_DEF_PDU_CQPROC_SHIFT;
1869
1870 iowrite32(doorbell, phba->db_va + doorbell_offset);
1871 }
1872 }
1873
1874 static void hwi_flush_default_pdu_buffer(struct beiscsi_hba *phba,
1875 struct beiscsi_conn *beiscsi_conn,
1876 struct i_t_dpdu_cqe *pdpdu_cqe)
1877 {
1878 struct hwi_controller *phwi_ctrlr;
1879 struct hwi_async_pdu_context *pasync_ctx;
1880 struct async_pdu_handle *pasync_handle = NULL;
1881 unsigned int cq_index = -1;
1882 uint16_t cri_index = BE_GET_CRI_FROM_CID(
1883 beiscsi_conn->beiscsi_conn_cid);
1884
1885 phwi_ctrlr = phba->phwi_ctrlr;
1886 pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr,
1887 BEISCSI_GET_ULP_FROM_CRI(phwi_ctrlr,
1888 cri_index));
1889
1890 pasync_handle = hwi_get_async_handle(phba, beiscsi_conn, pasync_ctx,
1891 pdpdu_cqe, &cq_index);
1892 BUG_ON(pasync_handle->is_header != 0);
1893 if (pasync_handle->consumed == 0)
1894 hwi_update_async_writables(phba, pasync_ctx,
1895 pasync_handle->is_header, cq_index);
1896
1897 hwi_free_async_msg(phba, pasync_ctx, pasync_handle->cri);
1898 hwi_post_async_buffers(phba, pasync_handle->is_header,
1899 BEISCSI_GET_ULP_FROM_CRI(phwi_ctrlr,
1900 cri_index));
1901 }
1902
1903 static unsigned int
1904 hwi_fwd_async_msg(struct beiscsi_conn *beiscsi_conn,
1905 struct beiscsi_hba *phba,
1906 struct hwi_async_pdu_context *pasync_ctx, unsigned short cri)
1907 {
1908 struct list_head *plist;
1909 struct async_pdu_handle *pasync_handle;
1910 void *phdr = NULL;
1911 unsigned int hdr_len = 0, buf_len = 0;
1912 unsigned int status, index = 0, offset = 0;
1913 void *pfirst_buffer = NULL;
1914 unsigned int num_buf = 0;
1915
1916 plist = &pasync_ctx->async_entry[cri].wait_queue.list;
1917
1918 list_for_each_entry(pasync_handle, plist, link) {
1919 if (index == 0) {
1920 phdr = pasync_handle->pbuffer;
1921 hdr_len = pasync_handle->buffer_len;
1922 } else {
1923 buf_len = pasync_handle->buffer_len;
1924 if (!num_buf) {
1925 pfirst_buffer = pasync_handle->pbuffer;
1926 num_buf++;
1927 }
1928 memcpy(pfirst_buffer + offset,
1929 pasync_handle->pbuffer, buf_len);
1930 offset += buf_len;
1931 }
1932 index++;
1933 }
1934
1935 status = beiscsi_process_async_pdu(beiscsi_conn, phba,
1936 phdr, hdr_len, pfirst_buffer,
1937 offset);
1938
1939 hwi_free_async_msg(phba, pasync_ctx, cri);
1940 return 0;
1941 }
1942
1943 static unsigned int
1944 hwi_gather_async_pdu(struct beiscsi_conn *beiscsi_conn,
1945 struct beiscsi_hba *phba,
1946 struct async_pdu_handle *pasync_handle)
1947 {
1948 struct hwi_async_pdu_context *pasync_ctx;
1949 struct hwi_controller *phwi_ctrlr;
1950 unsigned int bytes_needed = 0, status = 0;
1951 unsigned short cri = pasync_handle->cri;
1952 struct pdu_base *ppdu;
1953
1954 phwi_ctrlr = phba->phwi_ctrlr;
1955 pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr,
1956 BEISCSI_GET_ULP_FROM_CRI(phwi_ctrlr,
1957 BE_GET_CRI_FROM_CID(beiscsi_conn->
1958 beiscsi_conn_cid)));
1959
1960 list_del(&pasync_handle->link);
1961 if (pasync_handle->is_header) {
1962 pasync_ctx->async_header.busy_entries--;
1963 if (pasync_ctx->async_entry[cri].wait_queue.hdr_received) {
1964 hwi_free_async_msg(phba, pasync_ctx, cri);
1965 BUG();
1966 }
1967
1968 pasync_ctx->async_entry[cri].wait_queue.bytes_received = 0;
1969 pasync_ctx->async_entry[cri].wait_queue.hdr_received = 1;
1970 pasync_ctx->async_entry[cri].wait_queue.hdr_len =
1971 (unsigned short)pasync_handle->buffer_len;
1972 list_add_tail(&pasync_handle->link,
1973 &pasync_ctx->async_entry[cri].wait_queue.list);
1974
1975 ppdu = pasync_handle->pbuffer;
1976 bytes_needed = ((((ppdu->dw[offsetof(struct amap_pdu_base,
1977 data_len_hi) / 32] & PDUBASE_DATALENHI_MASK) << 8) &
1978 0xFFFF0000) | ((be16_to_cpu((ppdu->
1979 dw[offsetof(struct amap_pdu_base, data_len_lo) / 32]
1980 & PDUBASE_DATALENLO_MASK) >> 16)) & 0x0000FFFF));
1981
1982 if (status == 0) {
1983 pasync_ctx->async_entry[cri].wait_queue.bytes_needed =
1984 bytes_needed;
1985
1986 if (bytes_needed == 0)
1987 status = hwi_fwd_async_msg(beiscsi_conn, phba,
1988 pasync_ctx, cri);
1989 }
1990 } else {
1991 pasync_ctx->async_data.busy_entries--;
1992 if (pasync_ctx->async_entry[cri].wait_queue.hdr_received) {
1993 list_add_tail(&pasync_handle->link,
1994 &pasync_ctx->async_entry[cri].wait_queue.
1995 list);
1996 pasync_ctx->async_entry[cri].wait_queue.
1997 bytes_received +=
1998 (unsigned short)pasync_handle->buffer_len;
1999
2000 if (pasync_ctx->async_entry[cri].wait_queue.
2001 bytes_received >=
2002 pasync_ctx->async_entry[cri].wait_queue.
2003 bytes_needed)
2004 status = hwi_fwd_async_msg(beiscsi_conn, phba,
2005 pasync_ctx, cri);
2006 }
2007 }
2008 return status;
2009 }
2010
2011 static void hwi_process_default_pdu_ring(struct beiscsi_conn *beiscsi_conn,
2012 struct beiscsi_hba *phba,
2013 struct i_t_dpdu_cqe *pdpdu_cqe)
2014 {
2015 struct hwi_controller *phwi_ctrlr;
2016 struct hwi_async_pdu_context *pasync_ctx;
2017 struct async_pdu_handle *pasync_handle = NULL;
2018 unsigned int cq_index = -1;
2019 uint16_t cri_index = BE_GET_CRI_FROM_CID(
2020 beiscsi_conn->beiscsi_conn_cid);
2021
2022 phwi_ctrlr = phba->phwi_ctrlr;
2023 pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr,
2024 BEISCSI_GET_ULP_FROM_CRI(phwi_ctrlr,
2025 cri_index));
2026
2027 pasync_handle = hwi_get_async_handle(phba, beiscsi_conn, pasync_ctx,
2028 pdpdu_cqe, &cq_index);
2029
2030 if (pasync_handle->consumed == 0)
2031 hwi_update_async_writables(phba, pasync_ctx,
2032 pasync_handle->is_header, cq_index);
2033
2034 hwi_gather_async_pdu(beiscsi_conn, phba, pasync_handle);
2035 hwi_post_async_buffers(phba, pasync_handle->is_header,
2036 BEISCSI_GET_ULP_FROM_CRI(
2037 phwi_ctrlr, cri_index));
2038 }
2039
2040 static void beiscsi_process_mcc_isr(struct beiscsi_hba *phba)
2041 {
2042 struct be_queue_info *mcc_cq;
2043 struct be_mcc_compl *mcc_compl;
2044 unsigned int num_processed = 0;
2045
2046 mcc_cq = &phba->ctrl.mcc_obj.cq;
2047 mcc_compl = queue_tail_node(mcc_cq);
2048 mcc_compl->flags = le32_to_cpu(mcc_compl->flags);
2049 while (mcc_compl->flags & CQE_FLAGS_VALID_MASK) {
2050
2051 if (num_processed >= 32) {
2052 hwi_ring_cq_db(phba, mcc_cq->id,
2053 num_processed, 0, 0);
2054 num_processed = 0;
2055 }
2056 if (mcc_compl->flags & CQE_FLAGS_ASYNC_MASK) {
2057 /* Interpret flags as an async trailer */
2058 if (is_link_state_evt(mcc_compl->flags))
2059 /* Interpret compl as a async link evt */
2060 beiscsi_async_link_state_process(phba,
2061 (struct be_async_event_link_state *) mcc_compl);
2062 else
2063 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_MBOX,
2064 "BM_%d : Unsupported Async Event, flags"
2065 " = 0x%08x\n",
2066 mcc_compl->flags);
2067 } else if (mcc_compl->flags & CQE_FLAGS_COMPLETED_MASK) {
2068 be_mcc_compl_process_isr(&phba->ctrl, mcc_compl);
2069 atomic_dec(&phba->ctrl.mcc_obj.q.used);
2070 }
2071
2072 mcc_compl->flags = 0;
2073 queue_tail_inc(mcc_cq);
2074 mcc_compl = queue_tail_node(mcc_cq);
2075 mcc_compl->flags = le32_to_cpu(mcc_compl->flags);
2076 num_processed++;
2077 }
2078
2079 if (num_processed > 0)
2080 hwi_ring_cq_db(phba, mcc_cq->id, num_processed, 1, 0);
2081
2082 }
2083
2084 /**
2085 * beiscsi_process_cq()- Process the Completion Queue
2086 * @pbe_eq: Event Q on which the Completion has come
2087 *
2088 * return
2089 * Number of Completion Entries processed.
2090 **/
2091 static unsigned int beiscsi_process_cq(struct be_eq_obj *pbe_eq)
2092 {
2093 struct be_queue_info *cq;
2094 struct sol_cqe *sol;
2095 struct dmsg_cqe *dmsg;
2096 unsigned int num_processed = 0;
2097 unsigned int tot_nump = 0;
2098 unsigned short code = 0, cid = 0;
2099 uint16_t cri_index = 0;
2100 struct beiscsi_conn *beiscsi_conn;
2101 struct beiscsi_endpoint *beiscsi_ep;
2102 struct iscsi_endpoint *ep;
2103 struct beiscsi_hba *phba;
2104
2105 cq = pbe_eq->cq;
2106 sol = queue_tail_node(cq);
2107 phba = pbe_eq->phba;
2108
2109 while (sol->dw[offsetof(struct amap_sol_cqe, valid) / 32] &
2110 CQE_VALID_MASK) {
2111 be_dws_le_to_cpu(sol, sizeof(struct sol_cqe));
2112
2113 code = (sol->dw[offsetof(struct amap_sol_cqe, code) /
2114 32] & CQE_CODE_MASK);
2115
2116 /* Get the CID */
2117 if (is_chip_be2_be3r(phba)) {
2118 cid = AMAP_GET_BITS(struct amap_sol_cqe, cid, sol);
2119 } else {
2120 if ((code == DRIVERMSG_NOTIFY) ||
2121 (code == UNSOL_HDR_NOTIFY) ||
2122 (code == UNSOL_DATA_NOTIFY))
2123 cid = AMAP_GET_BITS(
2124 struct amap_i_t_dpdu_cqe_v2,
2125 cid, sol);
2126 else
2127 cid = AMAP_GET_BITS(struct amap_sol_cqe_v2,
2128 cid, sol);
2129 }
2130
2131 cri_index = BE_GET_CRI_FROM_CID(cid);
2132 ep = phba->ep_array[cri_index];
2133 beiscsi_ep = ep->dd_data;
2134 beiscsi_conn = beiscsi_ep->conn;
2135
2136 if (num_processed >= 32) {
2137 hwi_ring_cq_db(phba, cq->id,
2138 num_processed, 0, 0);
2139 tot_nump += num_processed;
2140 num_processed = 0;
2141 }
2142
2143 switch (code) {
2144 case SOL_CMD_COMPLETE:
2145 hwi_complete_cmd(beiscsi_conn, phba, sol);
2146 break;
2147 case DRIVERMSG_NOTIFY:
2148 beiscsi_log(phba, KERN_INFO,
2149 BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG,
2150 "BM_%d : Received %s[%d] on CID : %d\n",
2151 cqe_desc[code], code, cid);
2152
2153 dmsg = (struct dmsg_cqe *)sol;
2154 hwi_complete_drvr_msgs(beiscsi_conn, phba, sol);
2155 break;
2156 case UNSOL_HDR_NOTIFY:
2157 beiscsi_log(phba, KERN_INFO,
2158 BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG,
2159 "BM_%d : Received %s[%d] on CID : %d\n",
2160 cqe_desc[code], code, cid);
2161
2162 spin_lock_bh(&phba->async_pdu_lock);
2163 hwi_process_default_pdu_ring(beiscsi_conn, phba,
2164 (struct i_t_dpdu_cqe *)sol);
2165 spin_unlock_bh(&phba->async_pdu_lock);
2166 break;
2167 case UNSOL_DATA_NOTIFY:
2168 beiscsi_log(phba, KERN_INFO,
2169 BEISCSI_LOG_CONFIG | BEISCSI_LOG_IO,
2170 "BM_%d : Received %s[%d] on CID : %d\n",
2171 cqe_desc[code], code, cid);
2172
2173 spin_lock_bh(&phba->async_pdu_lock);
2174 hwi_process_default_pdu_ring(beiscsi_conn, phba,
2175 (struct i_t_dpdu_cqe *)sol);
2176 spin_unlock_bh(&phba->async_pdu_lock);
2177 break;
2178 case CXN_INVALIDATE_INDEX_NOTIFY:
2179 case CMD_INVALIDATED_NOTIFY:
2180 case CXN_INVALIDATE_NOTIFY:
2181 beiscsi_log(phba, KERN_ERR,
2182 BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG,
2183 "BM_%d : Ignoring %s[%d] on CID : %d\n",
2184 cqe_desc[code], code, cid);
2185 break;
2186 case SOL_CMD_KILLED_DATA_DIGEST_ERR:
2187 case CMD_KILLED_INVALID_STATSN_RCVD:
2188 case CMD_KILLED_INVALID_R2T_RCVD:
2189 case CMD_CXN_KILLED_LUN_INVALID:
2190 case CMD_CXN_KILLED_ICD_INVALID:
2191 case CMD_CXN_KILLED_ITT_INVALID:
2192 case CMD_CXN_KILLED_SEQ_OUTOFORDER:
2193 case CMD_CXN_KILLED_INVALID_DATASN_RCVD:
2194 beiscsi_log(phba, KERN_ERR,
2195 BEISCSI_LOG_CONFIG | BEISCSI_LOG_IO,
2196 "BM_%d : Cmd Notification %s[%d] on CID : %d\n",
2197 cqe_desc[code], code, cid);
2198 break;
2199 case UNSOL_DATA_DIGEST_ERROR_NOTIFY:
2200 beiscsi_log(phba, KERN_ERR,
2201 BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG,
2202 "BM_%d : Dropping %s[%d] on DPDU ring on CID : %d\n",
2203 cqe_desc[code], code, cid);
2204 spin_lock_bh(&phba->async_pdu_lock);
2205 hwi_flush_default_pdu_buffer(phba, beiscsi_conn,
2206 (struct i_t_dpdu_cqe *) sol);
2207 spin_unlock_bh(&phba->async_pdu_lock);
2208 break;
2209 case CXN_KILLED_PDU_SIZE_EXCEEDS_DSL:
2210 case CXN_KILLED_BURST_LEN_MISMATCH:
2211 case CXN_KILLED_AHS_RCVD:
2212 case CXN_KILLED_HDR_DIGEST_ERR:
2213 case CXN_KILLED_UNKNOWN_HDR:
2214 case CXN_KILLED_STALE_ITT_TTT_RCVD:
2215 case CXN_KILLED_INVALID_ITT_TTT_RCVD:
2216 case CXN_KILLED_TIMED_OUT:
2217 case CXN_KILLED_FIN_RCVD:
2218 case CXN_KILLED_RST_SENT:
2219 case CXN_KILLED_RST_RCVD:
2220 case CXN_KILLED_BAD_UNSOL_PDU_RCVD:
2221 case CXN_KILLED_BAD_WRB_INDEX_ERROR:
2222 case CXN_KILLED_OVER_RUN_RESIDUAL:
2223 case CXN_KILLED_UNDER_RUN_RESIDUAL:
2224 case CXN_KILLED_CMND_DATA_NOT_ON_SAME_CONN:
2225 beiscsi_log(phba, KERN_ERR,
2226 BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG,
2227 "BM_%d : Event %s[%d] received on CID : %d\n",
2228 cqe_desc[code], code, cid);
2229 if (beiscsi_conn)
2230 iscsi_conn_failure(beiscsi_conn->conn,
2231 ISCSI_ERR_CONN_FAILED);
2232 break;
2233 default:
2234 beiscsi_log(phba, KERN_ERR,
2235 BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG,
2236 "BM_%d : Invalid CQE Event Received Code : %d"
2237 "CID 0x%x...\n",
2238 code, cid);
2239 break;
2240 }
2241
2242 AMAP_SET_BITS(struct amap_sol_cqe, valid, sol, 0);
2243 queue_tail_inc(cq);
2244 sol = queue_tail_node(cq);
2245 num_processed++;
2246 }
2247
2248 if (num_processed > 0) {
2249 tot_nump += num_processed;
2250 hwi_ring_cq_db(phba, cq->id, num_processed, 1, 0);
2251 }
2252 return tot_nump;
2253 }
2254
2255 void beiscsi_process_all_cqs(struct work_struct *work)
2256 {
2257 unsigned long flags;
2258 struct hwi_controller *phwi_ctrlr;
2259 struct hwi_context_memory *phwi_context;
2260 struct beiscsi_hba *phba;
2261 struct be_eq_obj *pbe_eq =
2262 container_of(work, struct be_eq_obj, work_cqs);
2263
2264 phba = pbe_eq->phba;
2265 phwi_ctrlr = phba->phwi_ctrlr;
2266 phwi_context = phwi_ctrlr->phwi_ctxt;
2267
2268 if (pbe_eq->todo_mcc_cq) {
2269 spin_lock_irqsave(&phba->isr_lock, flags);
2270 pbe_eq->todo_mcc_cq = false;
2271 spin_unlock_irqrestore(&phba->isr_lock, flags);
2272 beiscsi_process_mcc_isr(phba);
2273 }
2274
2275 if (pbe_eq->todo_cq) {
2276 spin_lock_irqsave(&phba->isr_lock, flags);
2277 pbe_eq->todo_cq = false;
2278 spin_unlock_irqrestore(&phba->isr_lock, flags);
2279 beiscsi_process_cq(pbe_eq);
2280 }
2281
2282 /* rearm EQ for further interrupts */
2283 hwi_ring_eq_db(phba, pbe_eq->q.id, 0, 0, 1, 1);
2284 }
2285
2286 static int be_iopoll(struct blk_iopoll *iop, int budget)
2287 {
2288 unsigned int ret;
2289 struct beiscsi_hba *phba;
2290 struct be_eq_obj *pbe_eq;
2291
2292 pbe_eq = container_of(iop, struct be_eq_obj, iopoll);
2293 ret = beiscsi_process_cq(pbe_eq);
2294 if (ret < budget) {
2295 phba = pbe_eq->phba;
2296 blk_iopoll_complete(iop);
2297 beiscsi_log(phba, KERN_INFO,
2298 BEISCSI_LOG_CONFIG | BEISCSI_LOG_IO,
2299 "BM_%d : rearm pbe_eq->q.id =%d\n",
2300 pbe_eq->q.id);
2301 hwi_ring_eq_db(phba, pbe_eq->q.id, 0, 0, 1, 1);
2302 }
2303 return ret;
2304 }
2305
2306 static void
2307 hwi_write_sgl_v2(struct iscsi_wrb *pwrb, struct scatterlist *sg,
2308 unsigned int num_sg, struct beiscsi_io_task *io_task)
2309 {
2310 struct iscsi_sge *psgl;
2311 unsigned int sg_len, index;
2312 unsigned int sge_len = 0;
2313 unsigned long long addr;
2314 struct scatterlist *l_sg;
2315 unsigned int offset;
2316
2317 AMAP_SET_BITS(struct amap_iscsi_wrb_v2, iscsi_bhs_addr_lo, pwrb,
2318 io_task->bhs_pa.u.a32.address_lo);
2319 AMAP_SET_BITS(struct amap_iscsi_wrb_v2, iscsi_bhs_addr_hi, pwrb,
2320 io_task->bhs_pa.u.a32.address_hi);
2321
2322 l_sg = sg;
2323 for (index = 0; (index < num_sg) && (index < 2); index++,
2324 sg = sg_next(sg)) {
2325 if (index == 0) {
2326 sg_len = sg_dma_len(sg);
2327 addr = (u64) sg_dma_address(sg);
2328 AMAP_SET_BITS(struct amap_iscsi_wrb_v2,
2329 sge0_addr_lo, pwrb,
2330 lower_32_bits(addr));
2331 AMAP_SET_BITS(struct amap_iscsi_wrb_v2,
2332 sge0_addr_hi, pwrb,
2333 upper_32_bits(addr));
2334 AMAP_SET_BITS(struct amap_iscsi_wrb_v2,
2335 sge0_len, pwrb,
2336 sg_len);
2337 sge_len = sg_len;
2338 } else {
2339 AMAP_SET_BITS(struct amap_iscsi_wrb_v2, sge1_r2t_offset,
2340 pwrb, sge_len);
2341 sg_len = sg_dma_len(sg);
2342 addr = (u64) sg_dma_address(sg);
2343 AMAP_SET_BITS(struct amap_iscsi_wrb_v2,
2344 sge1_addr_lo, pwrb,
2345 lower_32_bits(addr));
2346 AMAP_SET_BITS(struct amap_iscsi_wrb_v2,
2347 sge1_addr_hi, pwrb,
2348 upper_32_bits(addr));
2349 AMAP_SET_BITS(struct amap_iscsi_wrb_v2,
2350 sge1_len, pwrb,
2351 sg_len);
2352 }
2353 }
2354 psgl = (struct iscsi_sge *)io_task->psgl_handle->pfrag;
2355 memset(psgl, 0, sizeof(*psgl) * BE2_SGE);
2356
2357 AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, io_task->bhs_len - 2);
2358
2359 AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl,
2360 io_task->bhs_pa.u.a32.address_hi);
2361 AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl,
2362 io_task->bhs_pa.u.a32.address_lo);
2363
2364 if (num_sg == 1) {
2365 AMAP_SET_BITS(struct amap_iscsi_wrb_v2, sge0_last, pwrb,
2366 1);
2367 AMAP_SET_BITS(struct amap_iscsi_wrb_v2, sge1_last, pwrb,
2368 0);
2369 } else if (num_sg == 2) {
2370 AMAP_SET_BITS(struct amap_iscsi_wrb_v2, sge0_last, pwrb,
2371 0);
2372 AMAP_SET_BITS(struct amap_iscsi_wrb_v2, sge1_last, pwrb,
2373 1);
2374 } else {
2375 AMAP_SET_BITS(struct amap_iscsi_wrb_v2, sge0_last, pwrb,
2376 0);
2377 AMAP_SET_BITS(struct amap_iscsi_wrb_v2, sge1_last, pwrb,
2378 0);
2379 }
2380
2381 sg = l_sg;
2382 psgl++;
2383 psgl++;
2384 offset = 0;
2385 for (index = 0; index < num_sg; index++, sg = sg_next(sg), psgl++) {
2386 sg_len = sg_dma_len(sg);
2387 addr = (u64) sg_dma_address(sg);
2388 AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl,
2389 lower_32_bits(addr));
2390 AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl,
2391 upper_32_bits(addr));
2392 AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, sg_len);
2393 AMAP_SET_BITS(struct amap_iscsi_sge, sge_offset, psgl, offset);
2394 AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 0);
2395 offset += sg_len;
2396 }
2397 psgl--;
2398 AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 1);
2399 }
2400
2401 static void
2402 hwi_write_sgl(struct iscsi_wrb *pwrb, struct scatterlist *sg,
2403 unsigned int num_sg, struct beiscsi_io_task *io_task)
2404 {
2405 struct iscsi_sge *psgl;
2406 unsigned int sg_len, index;
2407 unsigned int sge_len = 0;
2408 unsigned long long addr;
2409 struct scatterlist *l_sg;
2410 unsigned int offset;
2411
2412 AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_lo, pwrb,
2413 io_task->bhs_pa.u.a32.address_lo);
2414 AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_hi, pwrb,
2415 io_task->bhs_pa.u.a32.address_hi);
2416
2417 l_sg = sg;
2418 for (index = 0; (index < num_sg) && (index < 2); index++,
2419 sg = sg_next(sg)) {
2420 if (index == 0) {
2421 sg_len = sg_dma_len(sg);
2422 addr = (u64) sg_dma_address(sg);
2423 AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_lo, pwrb,
2424 ((u32)(addr & 0xFFFFFFFF)));
2425 AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_hi, pwrb,
2426 ((u32)(addr >> 32)));
2427 AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_len, pwrb,
2428 sg_len);
2429 sge_len = sg_len;
2430 } else {
2431 AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_r2t_offset,
2432 pwrb, sge_len);
2433 sg_len = sg_dma_len(sg);
2434 addr = (u64) sg_dma_address(sg);
2435 AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_addr_lo, pwrb,
2436 ((u32)(addr & 0xFFFFFFFF)));
2437 AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_addr_hi, pwrb,
2438 ((u32)(addr >> 32)));
2439 AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_len, pwrb,
2440 sg_len);
2441 }
2442 }
2443 psgl = (struct iscsi_sge *)io_task->psgl_handle->pfrag;
2444 memset(psgl, 0, sizeof(*psgl) * BE2_SGE);
2445
2446 AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, io_task->bhs_len - 2);
2447
2448 AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl,
2449 io_task->bhs_pa.u.a32.address_hi);
2450 AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl,
2451 io_task->bhs_pa.u.a32.address_lo);
2452
2453 if (num_sg == 1) {
2454 AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_last, pwrb,
2455 1);
2456 AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_last, pwrb,
2457 0);
2458 } else if (num_sg == 2) {
2459 AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_last, pwrb,
2460 0);
2461 AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_last, pwrb,
2462 1);
2463 } else {
2464 AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_last, pwrb,
2465 0);
2466 AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_last, pwrb,
2467 0);
2468 }
2469 sg = l_sg;
2470 psgl++;
2471 psgl++;
2472 offset = 0;
2473 for (index = 0; index < num_sg; index++, sg = sg_next(sg), psgl++) {
2474 sg_len = sg_dma_len(sg);
2475 addr = (u64) sg_dma_address(sg);
2476 AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl,
2477 (addr & 0xFFFFFFFF));
2478 AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl,
2479 (addr >> 32));
2480 AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, sg_len);
2481 AMAP_SET_BITS(struct amap_iscsi_sge, sge_offset, psgl, offset);
2482 AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 0);
2483 offset += sg_len;
2484 }
2485 psgl--;
2486 AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 1);
2487 }
2488
2489 /**
2490 * hwi_write_buffer()- Populate the WRB with task info
2491 * @pwrb: ptr to the WRB entry
2492 * @task: iscsi task which is to be executed
2493 **/
2494 static void hwi_write_buffer(struct iscsi_wrb *pwrb, struct iscsi_task *task)
2495 {
2496 struct iscsi_sge *psgl;
2497 struct beiscsi_io_task *io_task = task->dd_data;
2498 struct beiscsi_conn *beiscsi_conn = io_task->conn;
2499 struct beiscsi_hba *phba = beiscsi_conn->phba;
2500 uint8_t dsp_value = 0;
2501
2502 io_task->bhs_len = sizeof(struct be_nonio_bhs) - 2;
2503 AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_lo, pwrb,
2504 io_task->bhs_pa.u.a32.address_lo);
2505 AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_hi, pwrb,
2506 io_task->bhs_pa.u.a32.address_hi);
2507
2508 if (task->data) {
2509
2510 /* Check for the data_count */
2511 dsp_value = (task->data_count) ? 1 : 0;
2512
2513 if (is_chip_be2_be3r(phba))
2514 AMAP_SET_BITS(struct amap_iscsi_wrb, dsp,
2515 pwrb, dsp_value);
2516 else
2517 AMAP_SET_BITS(struct amap_iscsi_wrb_v2, dsp,
2518 pwrb, dsp_value);
2519
2520 /* Map addr only if there is data_count */
2521 if (dsp_value) {
2522 io_task->mtask_addr = pci_map_single(phba->pcidev,
2523 task->data,
2524 task->data_count,
2525 PCI_DMA_TODEVICE);
2526 io_task->mtask_data_count = task->data_count;
2527 } else
2528 io_task->mtask_addr = 0;
2529
2530 AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_lo, pwrb,
2531 lower_32_bits(io_task->mtask_addr));
2532 AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_hi, pwrb,
2533 upper_32_bits(io_task->mtask_addr));
2534 AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_len, pwrb,
2535 task->data_count);
2536
2537 AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_last, pwrb, 1);
2538 } else {
2539 AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 0);
2540 io_task->mtask_addr = 0;
2541 }
2542
2543 psgl = (struct iscsi_sge *)io_task->psgl_handle->pfrag;
2544
2545 AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, io_task->bhs_len);
2546
2547 AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl,
2548 io_task->bhs_pa.u.a32.address_hi);
2549 AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl,
2550 io_task->bhs_pa.u.a32.address_lo);
2551 if (task->data) {
2552 psgl++;
2553 AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl, 0);
2554 AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl, 0);
2555 AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, 0);
2556 AMAP_SET_BITS(struct amap_iscsi_sge, sge_offset, psgl, 0);
2557 AMAP_SET_BITS(struct amap_iscsi_sge, rsvd0, psgl, 0);
2558 AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 0);
2559
2560 psgl++;
2561 if (task->data) {
2562 AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl,
2563 lower_32_bits(io_task->mtask_addr));
2564 AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl,
2565 upper_32_bits(io_task->mtask_addr));
2566 }
2567 AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, 0x106);
2568 }
2569 AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 1);
2570 }
2571
2572 /**
2573 * beiscsi_find_mem_req()- Find mem needed
2574 * @phba: ptr to HBA struct
2575 **/
2576 static void beiscsi_find_mem_req(struct beiscsi_hba *phba)
2577 {
2578 uint8_t mem_descr_index, ulp_num;
2579 unsigned int num_cq_pages, num_async_pdu_buf_pages;
2580 unsigned int num_async_pdu_data_pages, wrb_sz_per_cxn;
2581 unsigned int num_async_pdu_buf_sgl_pages, num_async_pdu_data_sgl_pages;
2582
2583 num_cq_pages = PAGES_REQUIRED(phba->params.num_cq_entries * \
2584 sizeof(struct sol_cqe));
2585
2586 phba->params.hwi_ws_sz = sizeof(struct hwi_controller);
2587
2588 phba->mem_req[ISCSI_MEM_GLOBAL_HEADER] = 2 *
2589 BE_ISCSI_PDU_HEADER_SIZE;
2590 phba->mem_req[HWI_MEM_ADDN_CONTEXT] =
2591 sizeof(struct hwi_context_memory);
2592
2593
2594 phba->mem_req[HWI_MEM_WRB] = sizeof(struct iscsi_wrb)
2595 * (phba->params.wrbs_per_cxn)
2596 * phba->params.cxns_per_ctrl;
2597 wrb_sz_per_cxn = sizeof(struct wrb_handle) *
2598 (phba->params.wrbs_per_cxn);
2599 phba->mem_req[HWI_MEM_WRBH] = roundup_pow_of_two((wrb_sz_per_cxn) *
2600 phba->params.cxns_per_ctrl);
2601
2602 phba->mem_req[HWI_MEM_SGLH] = sizeof(struct sgl_handle) *
2603 phba->params.icds_per_ctrl;
2604 phba->mem_req[HWI_MEM_SGE] = sizeof(struct iscsi_sge) *
2605 phba->params.num_sge_per_io * phba->params.icds_per_ctrl;
2606 for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
2607 if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) {
2608
2609 num_async_pdu_buf_sgl_pages =
2610 PAGES_REQUIRED(BEISCSI_GET_CID_COUNT(
2611 phba, ulp_num) *
2612 sizeof(struct phys_addr));
2613
2614 num_async_pdu_buf_pages =
2615 PAGES_REQUIRED(BEISCSI_GET_CID_COUNT(
2616 phba, ulp_num) *
2617 phba->params.defpdu_hdr_sz);
2618
2619 num_async_pdu_data_pages =
2620 PAGES_REQUIRED(BEISCSI_GET_CID_COUNT(
2621 phba, ulp_num) *
2622 phba->params.defpdu_data_sz);
2623
2624 num_async_pdu_data_sgl_pages =
2625 PAGES_REQUIRED(BEISCSI_GET_CID_COUNT(
2626 phba, ulp_num) *
2627 sizeof(struct phys_addr));
2628
2629 mem_descr_index = (HWI_MEM_TEMPLATE_HDR_ULP0 +
2630 (ulp_num * MEM_DESCR_OFFSET));
2631 phba->mem_req[mem_descr_index] =
2632 BEISCSI_GET_CID_COUNT(phba, ulp_num) *
2633 BEISCSI_TEMPLATE_HDR_PER_CXN_SIZE;
2634
2635 mem_descr_index = (HWI_MEM_ASYNC_HEADER_BUF_ULP0 +
2636 (ulp_num * MEM_DESCR_OFFSET));
2637 phba->mem_req[mem_descr_index] =
2638 num_async_pdu_buf_pages *
2639 PAGE_SIZE;
2640
2641 mem_descr_index = (HWI_MEM_ASYNC_DATA_BUF_ULP0 +
2642 (ulp_num * MEM_DESCR_OFFSET));
2643 phba->mem_req[mem_descr_index] =
2644 num_async_pdu_data_pages *
2645 PAGE_SIZE;
2646
2647 mem_descr_index = (HWI_MEM_ASYNC_HEADER_RING_ULP0 +
2648 (ulp_num * MEM_DESCR_OFFSET));
2649 phba->mem_req[mem_descr_index] =
2650 num_async_pdu_buf_sgl_pages *
2651 PAGE_SIZE;
2652
2653 mem_descr_index = (HWI_MEM_ASYNC_DATA_RING_ULP0 +
2654 (ulp_num * MEM_DESCR_OFFSET));
2655 phba->mem_req[mem_descr_index] =
2656 num_async_pdu_data_sgl_pages *
2657 PAGE_SIZE;
2658
2659 mem_descr_index = (HWI_MEM_ASYNC_HEADER_HANDLE_ULP0 +
2660 (ulp_num * MEM_DESCR_OFFSET));
2661 phba->mem_req[mem_descr_index] =
2662 BEISCSI_GET_CID_COUNT(phba, ulp_num) *
2663 sizeof(struct async_pdu_handle);
2664
2665 mem_descr_index = (HWI_MEM_ASYNC_DATA_HANDLE_ULP0 +
2666 (ulp_num * MEM_DESCR_OFFSET));
2667 phba->mem_req[mem_descr_index] =
2668 BEISCSI_GET_CID_COUNT(phba, ulp_num) *
2669 sizeof(struct async_pdu_handle);
2670
2671 mem_descr_index = (HWI_MEM_ASYNC_PDU_CONTEXT_ULP0 +
2672 (ulp_num * MEM_DESCR_OFFSET));
2673 phba->mem_req[mem_descr_index] =
2674 sizeof(struct hwi_async_pdu_context) +
2675 (BEISCSI_GET_CID_COUNT(phba, ulp_num) *
2676 sizeof(struct hwi_async_entry));
2677 }
2678 }
2679 }
2680
2681 static int beiscsi_alloc_mem(struct beiscsi_hba *phba)
2682 {
2683 dma_addr_t bus_add;
2684 struct hwi_controller *phwi_ctrlr;
2685 struct be_mem_descriptor *mem_descr;
2686 struct mem_array *mem_arr, *mem_arr_orig;
2687 unsigned int i, j, alloc_size, curr_alloc_size;
2688
2689 phba->phwi_ctrlr = kzalloc(phba->params.hwi_ws_sz, GFP_KERNEL);
2690 if (!phba->phwi_ctrlr)
2691 return -ENOMEM;
2692
2693 /* Allocate memory for wrb_context */
2694 phwi_ctrlr = phba->phwi_ctrlr;
2695 phwi_ctrlr->wrb_context = kzalloc(sizeof(struct hwi_wrb_context) *
2696 phba->params.cxns_per_ctrl,
2697 GFP_KERNEL);
2698 if (!phwi_ctrlr->wrb_context)
2699 return -ENOMEM;
2700
2701 phba->init_mem = kcalloc(SE_MEM_MAX, sizeof(*mem_descr),
2702 GFP_KERNEL);
2703 if (!phba->init_mem) {
2704 kfree(phwi_ctrlr->wrb_context);
2705 kfree(phba->phwi_ctrlr);
2706 return -ENOMEM;
2707 }
2708
2709 mem_arr_orig = kmalloc(sizeof(*mem_arr_orig) * BEISCSI_MAX_FRAGS_INIT,
2710 GFP_KERNEL);
2711 if (!mem_arr_orig) {
2712 kfree(phba->init_mem);
2713 kfree(phwi_ctrlr->wrb_context);
2714 kfree(phba->phwi_ctrlr);
2715 return -ENOMEM;
2716 }
2717
2718 mem_descr = phba->init_mem;
2719 for (i = 0; i < SE_MEM_MAX; i++) {
2720 if (!phba->mem_req[i]) {
2721 mem_descr->mem_array = NULL;
2722 mem_descr++;
2723 continue;
2724 }
2725
2726 j = 0;
2727 mem_arr = mem_arr_orig;
2728 alloc_size = phba->mem_req[i];
2729 memset(mem_arr, 0, sizeof(struct mem_array) *
2730 BEISCSI_MAX_FRAGS_INIT);
2731 curr_alloc_size = min(be_max_phys_size * 1024, alloc_size);
2732 do {
2733 mem_arr->virtual_address = pci_alloc_consistent(
2734 phba->pcidev,
2735 curr_alloc_size,
2736 &bus_add);
2737 if (!mem_arr->virtual_address) {
2738 if (curr_alloc_size <= BE_MIN_MEM_SIZE)
2739 goto free_mem;
2740 if (curr_alloc_size -
2741 rounddown_pow_of_two(curr_alloc_size))
2742 curr_alloc_size = rounddown_pow_of_two
2743 (curr_alloc_size);
2744 else
2745 curr_alloc_size = curr_alloc_size / 2;
2746 } else {
2747 mem_arr->bus_address.u.
2748 a64.address = (__u64) bus_add;
2749 mem_arr->size = curr_alloc_size;
2750 alloc_size -= curr_alloc_size;
2751 curr_alloc_size = min(be_max_phys_size *
2752 1024, alloc_size);
2753 j++;
2754 mem_arr++;
2755 }
2756 } while (alloc_size);
2757 mem_descr->num_elements = j;
2758 mem_descr->size_in_bytes = phba->mem_req[i];
2759 mem_descr->mem_array = kmalloc(sizeof(*mem_arr) * j,
2760 GFP_KERNEL);
2761 if (!mem_descr->mem_array)
2762 goto free_mem;
2763
2764 memcpy(mem_descr->mem_array, mem_arr_orig,
2765 sizeof(struct mem_array) * j);
2766 mem_descr++;
2767 }
2768 kfree(mem_arr_orig);
2769 return 0;
2770 free_mem:
2771 mem_descr->num_elements = j;
2772 while ((i) || (j)) {
2773 for (j = mem_descr->num_elements; j > 0; j--) {
2774 pci_free_consistent(phba->pcidev,
2775 mem_descr->mem_array[j - 1].size,
2776 mem_descr->mem_array[j - 1].
2777 virtual_address,
2778 (unsigned long)mem_descr->
2779 mem_array[j - 1].
2780 bus_address.u.a64.address);
2781 }
2782 if (i) {
2783 i--;
2784 kfree(mem_descr->mem_array);
2785 mem_descr--;
2786 }
2787 }
2788 kfree(mem_arr_orig);
2789 kfree(phba->init_mem);
2790 kfree(phba->phwi_ctrlr->wrb_context);
2791 kfree(phba->phwi_ctrlr);
2792 return -ENOMEM;
2793 }
2794
2795 static int beiscsi_get_memory(struct beiscsi_hba *phba)
2796 {
2797 beiscsi_find_mem_req(phba);
2798 return beiscsi_alloc_mem(phba);
2799 }
2800
2801 static void iscsi_init_global_templates(struct beiscsi_hba *phba)
2802 {
2803 struct pdu_data_out *pdata_out;
2804 struct pdu_nop_out *pnop_out;
2805 struct be_mem_descriptor *mem_descr;
2806
2807 mem_descr = phba->init_mem;
2808 mem_descr += ISCSI_MEM_GLOBAL_HEADER;
2809 pdata_out =
2810 (struct pdu_data_out *)mem_descr->mem_array[0].virtual_address;
2811 memset(pdata_out, 0, BE_ISCSI_PDU_HEADER_SIZE);
2812
2813 AMAP_SET_BITS(struct amap_pdu_data_out, opcode, pdata_out,
2814 IIOC_SCSI_DATA);
2815
2816 pnop_out =
2817 (struct pdu_nop_out *)((unsigned char *)mem_descr->mem_array[0].
2818 virtual_address + BE_ISCSI_PDU_HEADER_SIZE);
2819
2820 memset(pnop_out, 0, BE_ISCSI_PDU_HEADER_SIZE);
2821 AMAP_SET_BITS(struct amap_pdu_nop_out, ttt, pnop_out, 0xFFFFFFFF);
2822 AMAP_SET_BITS(struct amap_pdu_nop_out, f_bit, pnop_out, 1);
2823 AMAP_SET_BITS(struct amap_pdu_nop_out, i_bit, pnop_out, 0);
2824 }
2825
2826 static int beiscsi_init_wrb_handle(struct beiscsi_hba *phba)
2827 {
2828 struct be_mem_descriptor *mem_descr_wrbh, *mem_descr_wrb;
2829 struct hwi_context_memory *phwi_ctxt;
2830 struct wrb_handle *pwrb_handle = NULL;
2831 struct hwi_controller *phwi_ctrlr;
2832 struct hwi_wrb_context *pwrb_context;
2833 struct iscsi_wrb *pwrb = NULL;
2834 unsigned int num_cxn_wrbh = 0;
2835 unsigned int num_cxn_wrb = 0, j, idx = 0, index;
2836
2837 mem_descr_wrbh = phba->init_mem;
2838 mem_descr_wrbh += HWI_MEM_WRBH;
2839
2840 mem_descr_wrb = phba->init_mem;
2841 mem_descr_wrb += HWI_MEM_WRB;
2842 phwi_ctrlr = phba->phwi_ctrlr;
2843
2844 /* Allocate memory for WRBQ */
2845 phwi_ctxt = phwi_ctrlr->phwi_ctxt;
2846 phwi_ctxt->be_wrbq = kzalloc(sizeof(struct be_queue_info) *
2847 phba->params.cxns_per_ctrl,
2848 GFP_KERNEL);
2849 if (!phwi_ctxt->be_wrbq) {
2850 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
2851 "BM_%d : WRBQ Mem Alloc Failed\n");
2852 return -ENOMEM;
2853 }
2854
2855 for (index = 0; index < phba->params.cxns_per_ctrl; index++) {
2856 pwrb_context = &phwi_ctrlr->wrb_context[index];
2857 pwrb_context->pwrb_handle_base =
2858 kzalloc(sizeof(struct wrb_handle *) *
2859 phba->params.wrbs_per_cxn, GFP_KERNEL);
2860 if (!pwrb_context->pwrb_handle_base) {
2861 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
2862 "BM_%d : Mem Alloc Failed. Failing to load\n");
2863 goto init_wrb_hndl_failed;
2864 }
2865 pwrb_context->pwrb_handle_basestd =
2866 kzalloc(sizeof(struct wrb_handle *) *
2867 phba->params.wrbs_per_cxn, GFP_KERNEL);
2868 if (!pwrb_context->pwrb_handle_basestd) {
2869 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
2870 "BM_%d : Mem Alloc Failed. Failing to load\n");
2871 goto init_wrb_hndl_failed;
2872 }
2873 if (!num_cxn_wrbh) {
2874 pwrb_handle =
2875 mem_descr_wrbh->mem_array[idx].virtual_address;
2876 num_cxn_wrbh = ((mem_descr_wrbh->mem_array[idx].size) /
2877 ((sizeof(struct wrb_handle)) *
2878 phba->params.wrbs_per_cxn));
2879 idx++;
2880 }
2881 pwrb_context->alloc_index = 0;
2882 pwrb_context->wrb_handles_available = 0;
2883 pwrb_context->free_index = 0;
2884
2885 if (num_cxn_wrbh) {
2886 for (j = 0; j < phba->params.wrbs_per_cxn; j++) {
2887 pwrb_context->pwrb_handle_base[j] = pwrb_handle;
2888 pwrb_context->pwrb_handle_basestd[j] =
2889 pwrb_handle;
2890 pwrb_context->wrb_handles_available++;
2891 pwrb_handle->wrb_index = j;
2892 pwrb_handle++;
2893 }
2894 num_cxn_wrbh--;
2895 }
2896 }
2897 idx = 0;
2898 for (index = 0; index < phba->params.cxns_per_ctrl; index++) {
2899 pwrb_context = &phwi_ctrlr->wrb_context[index];
2900 if (!num_cxn_wrb) {
2901 pwrb = mem_descr_wrb->mem_array[idx].virtual_address;
2902 num_cxn_wrb = (mem_descr_wrb->mem_array[idx].size) /
2903 ((sizeof(struct iscsi_wrb) *
2904 phba->params.wrbs_per_cxn));
2905 idx++;
2906 }
2907
2908 if (num_cxn_wrb) {
2909 for (j = 0; j < phba->params.wrbs_per_cxn; j++) {
2910 pwrb_handle = pwrb_context->pwrb_handle_base[j];
2911 pwrb_handle->pwrb = pwrb;
2912 pwrb++;
2913 }
2914 num_cxn_wrb--;
2915 }
2916 }
2917 return 0;
2918 init_wrb_hndl_failed:
2919 for (j = index; j > 0; j--) {
2920 pwrb_context = &phwi_ctrlr->wrb_context[j];
2921 kfree(pwrb_context->pwrb_handle_base);
2922 kfree(pwrb_context->pwrb_handle_basestd);
2923 }
2924 return -ENOMEM;
2925 }
2926
2927 static int hwi_init_async_pdu_ctx(struct beiscsi_hba *phba)
2928 {
2929 uint8_t ulp_num;
2930 struct hwi_controller *phwi_ctrlr;
2931 struct hba_parameters *p = &phba->params;
2932 struct hwi_async_pdu_context *pasync_ctx;
2933 struct async_pdu_handle *pasync_header_h, *pasync_data_h;
2934 unsigned int index, idx, num_per_mem, num_async_data;
2935 struct be_mem_descriptor *mem_descr;
2936
2937 for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
2938 if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) {
2939
2940 mem_descr = (struct be_mem_descriptor *)phba->init_mem;
2941 mem_descr += (HWI_MEM_ASYNC_PDU_CONTEXT_ULP0 +
2942 (ulp_num * MEM_DESCR_OFFSET));
2943
2944 phwi_ctrlr = phba->phwi_ctrlr;
2945 phwi_ctrlr->phwi_ctxt->pasync_ctx[ulp_num] =
2946 (struct hwi_async_pdu_context *)
2947 mem_descr->mem_array[0].virtual_address;
2948
2949 pasync_ctx = phwi_ctrlr->phwi_ctxt->pasync_ctx[ulp_num];
2950 memset(pasync_ctx, 0, sizeof(*pasync_ctx));
2951
2952 pasync_ctx->async_entry =
2953 (struct hwi_async_entry *)
2954 ((long unsigned int)pasync_ctx +
2955 sizeof(struct hwi_async_pdu_context));
2956
2957 pasync_ctx->num_entries = BEISCSI_GET_CID_COUNT(phba,
2958 ulp_num);
2959 pasync_ctx->buffer_size = p->defpdu_hdr_sz;
2960
2961 mem_descr = (struct be_mem_descriptor *)phba->init_mem;
2962 mem_descr += HWI_MEM_ASYNC_HEADER_BUF_ULP0 +
2963 (ulp_num * MEM_DESCR_OFFSET);
2964 if (mem_descr->mem_array[0].virtual_address) {
2965 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
2966 "BM_%d : hwi_init_async_pdu_ctx"
2967 " HWI_MEM_ASYNC_HEADER_BUF_ULP%d va=%p\n",
2968 ulp_num,
2969 mem_descr->mem_array[0].
2970 virtual_address);
2971 } else
2972 beiscsi_log(phba, KERN_WARNING,
2973 BEISCSI_LOG_INIT,
2974 "BM_%d : No Virtual address for ULP : %d\n",
2975 ulp_num);
2976
2977 pasync_ctx->async_header.va_base =
2978 mem_descr->mem_array[0].virtual_address;
2979
2980 pasync_ctx->async_header.pa_base.u.a64.address =
2981 mem_descr->mem_array[0].
2982 bus_address.u.a64.address;
2983
2984 mem_descr = (struct be_mem_descriptor *)phba->init_mem;
2985 mem_descr += HWI_MEM_ASYNC_HEADER_RING_ULP0 +
2986 (ulp_num * MEM_DESCR_OFFSET);
2987 if (mem_descr->mem_array[0].virtual_address) {
2988 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
2989 "BM_%d : hwi_init_async_pdu_ctx"
2990 " HWI_MEM_ASYNC_HEADER_RING_ULP%d va=%p\n",
2991 ulp_num,
2992 mem_descr->mem_array[0].
2993 virtual_address);
2994 } else
2995 beiscsi_log(phba, KERN_WARNING,
2996 BEISCSI_LOG_INIT,
2997 "BM_%d : No Virtual address for ULP : %d\n",
2998 ulp_num);
2999
3000 pasync_ctx->async_header.ring_base =
3001 mem_descr->mem_array[0].virtual_address;
3002
3003 mem_descr = (struct be_mem_descriptor *)phba->init_mem;
3004 mem_descr += HWI_MEM_ASYNC_HEADER_HANDLE_ULP0 +
3005 (ulp_num * MEM_DESCR_OFFSET);
3006 if (mem_descr->mem_array[0].virtual_address) {
3007 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
3008 "BM_%d : hwi_init_async_pdu_ctx"
3009 " HWI_MEM_ASYNC_HEADER_HANDLE_ULP%d va=%p\n",
3010 ulp_num,
3011 mem_descr->mem_array[0].
3012 virtual_address);
3013 } else
3014 beiscsi_log(phba, KERN_WARNING,
3015 BEISCSI_LOG_INIT,
3016 "BM_%d : No Virtual address for ULP : %d\n",
3017 ulp_num);
3018
3019 pasync_ctx->async_header.handle_base =
3020 mem_descr->mem_array[0].virtual_address;
3021 pasync_ctx->async_header.writables = 0;
3022 INIT_LIST_HEAD(&pasync_ctx->async_header.free_list);
3023
3024 mem_descr = (struct be_mem_descriptor *)phba->init_mem;
3025 mem_descr += HWI_MEM_ASYNC_DATA_RING_ULP0 +
3026 (ulp_num * MEM_DESCR_OFFSET);
3027 if (mem_descr->mem_array[0].virtual_address) {
3028 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
3029 "BM_%d : hwi_init_async_pdu_ctx"
3030 " HWI_MEM_ASYNC_DATA_RING_ULP%d va=%p\n",
3031 ulp_num,
3032 mem_descr->mem_array[0].
3033 virtual_address);
3034 } else
3035 beiscsi_log(phba, KERN_WARNING,
3036 BEISCSI_LOG_INIT,
3037 "BM_%d : No Virtual address for ULP : %d\n",
3038 ulp_num);
3039
3040 pasync_ctx->async_data.ring_base =
3041 mem_descr->mem_array[0].virtual_address;
3042
3043 mem_descr = (struct be_mem_descriptor *)phba->init_mem;
3044 mem_descr += HWI_MEM_ASYNC_DATA_HANDLE_ULP0 +
3045 (ulp_num * MEM_DESCR_OFFSET);
3046 if (!mem_descr->mem_array[0].virtual_address)
3047 beiscsi_log(phba, KERN_WARNING,
3048 BEISCSI_LOG_INIT,
3049 "BM_%d : No Virtual address for ULP : %d\n",
3050 ulp_num);
3051
3052 pasync_ctx->async_data.handle_base =
3053 mem_descr->mem_array[0].virtual_address;
3054 pasync_ctx->async_data.writables = 0;
3055 INIT_LIST_HEAD(&pasync_ctx->async_data.free_list);
3056
3057 pasync_header_h =
3058 (struct async_pdu_handle *)
3059 pasync_ctx->async_header.handle_base;
3060 pasync_data_h =
3061 (struct async_pdu_handle *)
3062 pasync_ctx->async_data.handle_base;
3063
3064 mem_descr = (struct be_mem_descriptor *)phba->init_mem;
3065 mem_descr += HWI_MEM_ASYNC_DATA_BUF_ULP0 +
3066 (ulp_num * MEM_DESCR_OFFSET);
3067 if (mem_descr->mem_array[0].virtual_address) {
3068 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
3069 "BM_%d : hwi_init_async_pdu_ctx"
3070 " HWI_MEM_ASYNC_DATA_BUF_ULP%d va=%p\n",
3071 ulp_num,
3072 mem_descr->mem_array[0].
3073 virtual_address);
3074 } else
3075 beiscsi_log(phba, KERN_WARNING,
3076 BEISCSI_LOG_INIT,
3077 "BM_%d : No Virtual address for ULP : %d\n",
3078 ulp_num);
3079
3080 idx = 0;
3081 pasync_ctx->async_data.va_base =
3082 mem_descr->mem_array[idx].virtual_address;
3083 pasync_ctx->async_data.pa_base.u.a64.address =
3084 mem_descr->mem_array[idx].
3085 bus_address.u.a64.address;
3086
3087 num_async_data = ((mem_descr->mem_array[idx].size) /
3088 phba->params.defpdu_data_sz);
3089 num_per_mem = 0;
3090
3091 for (index = 0; index < BEISCSI_GET_CID_COUNT
3092 (phba, ulp_num); index++) {
3093 pasync_header_h->cri = -1;
3094 pasync_header_h->index = (char)index;
3095 INIT_LIST_HEAD(&pasync_header_h->link);
3096 pasync_header_h->pbuffer =
3097 (void *)((unsigned long)
3098 (pasync_ctx->
3099 async_header.va_base) +
3100 (p->defpdu_hdr_sz * index));
3101
3102 pasync_header_h->pa.u.a64.address =
3103 pasync_ctx->async_header.pa_base.u.a64.
3104 address + (p->defpdu_hdr_sz * index);
3105
3106 list_add_tail(&pasync_header_h->link,
3107 &pasync_ctx->async_header.
3108 free_list);
3109 pasync_header_h++;
3110 pasync_ctx->async_header.free_entries++;
3111 pasync_ctx->async_header.writables++;
3112
3113 INIT_LIST_HEAD(&pasync_ctx->async_entry[index].
3114 wait_queue.list);
3115 INIT_LIST_HEAD(&pasync_ctx->async_entry[index].
3116 header_busy_list);
3117 pasync_data_h->cri = -1;
3118 pasync_data_h->index = (char)index;
3119 INIT_LIST_HEAD(&pasync_data_h->link);
3120
3121 if (!num_async_data) {
3122 num_per_mem = 0;
3123 idx++;
3124 pasync_ctx->async_data.va_base =
3125 mem_descr->mem_array[idx].
3126 virtual_address;
3127 pasync_ctx->async_data.pa_base.u.
3128 a64.address =
3129 mem_descr->mem_array[idx].
3130 bus_address.u.a64.address;
3131 num_async_data =
3132 ((mem_descr->mem_array[idx].
3133 size) /
3134 phba->params.defpdu_data_sz);
3135 }
3136 pasync_data_h->pbuffer =
3137 (void *)((unsigned long)
3138 (pasync_ctx->async_data.va_base) +
3139 (p->defpdu_data_sz * num_per_mem));
3140
3141 pasync_data_h->pa.u.a64.address =
3142 pasync_ctx->async_data.pa_base.u.a64.
3143 address + (p->defpdu_data_sz *
3144 num_per_mem);
3145 num_per_mem++;
3146 num_async_data--;
3147
3148 list_add_tail(&pasync_data_h->link,
3149 &pasync_ctx->async_data.
3150 free_list);
3151 pasync_data_h++;
3152 pasync_ctx->async_data.free_entries++;
3153 pasync_ctx->async_data.writables++;
3154
3155 INIT_LIST_HEAD(&pasync_ctx->async_entry[index].
3156 data_busy_list);
3157 }
3158
3159 pasync_ctx->async_header.host_write_ptr = 0;
3160 pasync_ctx->async_header.ep_read_ptr = -1;
3161 pasync_ctx->async_data.host_write_ptr = 0;
3162 pasync_ctx->async_data.ep_read_ptr = -1;
3163 }
3164 }
3165
3166 return 0;
3167 }
3168
3169 static int
3170 be_sgl_create_contiguous(void *virtual_address,
3171 u64 physical_address, u32 length,
3172 struct be_dma_mem *sgl)
3173 {
3174 WARN_ON(!virtual_address);
3175 WARN_ON(!physical_address);
3176 WARN_ON(!length > 0);
3177 WARN_ON(!sgl);
3178
3179 sgl->va = virtual_address;
3180 sgl->dma = (unsigned long)physical_address;
3181 sgl->size = length;
3182
3183 return 0;
3184 }
3185
3186 static void be_sgl_destroy_contiguous(struct be_dma_mem *sgl)
3187 {
3188 memset(sgl, 0, sizeof(*sgl));
3189 }
3190
3191 static void
3192 hwi_build_be_sgl_arr(struct beiscsi_hba *phba,
3193 struct mem_array *pmem, struct be_dma_mem *sgl)
3194 {
3195 if (sgl->va)
3196 be_sgl_destroy_contiguous(sgl);
3197
3198 be_sgl_create_contiguous(pmem->virtual_address,
3199 pmem->bus_address.u.a64.address,
3200 pmem->size, sgl);
3201 }
3202
3203 static void
3204 hwi_build_be_sgl_by_offset(struct beiscsi_hba *phba,
3205 struct mem_array *pmem, struct be_dma_mem *sgl)
3206 {
3207 if (sgl->va)
3208 be_sgl_destroy_contiguous(sgl);
3209
3210 be_sgl_create_contiguous((unsigned char *)pmem->virtual_address,
3211 pmem->bus_address.u.a64.address,
3212 pmem->size, sgl);
3213 }
3214
3215 static int be_fill_queue(struct be_queue_info *q,
3216 u16 len, u16 entry_size, void *vaddress)
3217 {
3218 struct be_dma_mem *mem = &q->dma_mem;
3219
3220 memset(q, 0, sizeof(*q));
3221 q->len = len;
3222 q->entry_size = entry_size;
3223 mem->size = len * entry_size;
3224 mem->va = vaddress;
3225 if (!mem->va)
3226 return -ENOMEM;
3227 memset(mem->va, 0, mem->size);
3228 return 0;
3229 }
3230
3231 static int beiscsi_create_eqs(struct beiscsi_hba *phba,
3232 struct hwi_context_memory *phwi_context)
3233 {
3234 unsigned int i, num_eq_pages;
3235 int ret = 0, eq_for_mcc;
3236 struct be_queue_info *eq;
3237 struct be_dma_mem *mem;
3238 void *eq_vaddress;
3239 dma_addr_t paddr;
3240
3241 num_eq_pages = PAGES_REQUIRED(phba->params.num_eq_entries * \
3242 sizeof(struct be_eq_entry));
3243
3244 if (phba->msix_enabled)
3245 eq_for_mcc = 1;
3246 else
3247 eq_for_mcc = 0;
3248 for (i = 0; i < (phba->num_cpus + eq_for_mcc); i++) {
3249 eq = &phwi_context->be_eq[i].q;
3250 mem = &eq->dma_mem;
3251 phwi_context->be_eq[i].phba = phba;
3252 eq_vaddress = pci_alloc_consistent(phba->pcidev,
3253 num_eq_pages * PAGE_SIZE,
3254 &paddr);
3255 if (!eq_vaddress)
3256 goto create_eq_error;
3257
3258 mem->va = eq_vaddress;
3259 ret = be_fill_queue(eq, phba->params.num_eq_entries,
3260 sizeof(struct be_eq_entry), eq_vaddress);
3261 if (ret) {
3262 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
3263 "BM_%d : be_fill_queue Failed for EQ\n");
3264 goto create_eq_error;
3265 }
3266
3267 mem->dma = paddr;
3268 ret = beiscsi_cmd_eq_create(&phba->ctrl, eq,
3269 phwi_context->cur_eqd);
3270 if (ret) {
3271 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
3272 "BM_%d : beiscsi_cmd_eq_create"
3273 "Failed for EQ\n");
3274 goto create_eq_error;
3275 }
3276
3277 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
3278 "BM_%d : eqid = %d\n",
3279 phwi_context->be_eq[i].q.id);
3280 }
3281 return 0;
3282 create_eq_error:
3283 for (i = 0; i < (phba->num_cpus + eq_for_mcc); i++) {
3284 eq = &phwi_context->be_eq[i].q;
3285 mem = &eq->dma_mem;
3286 if (mem->va)
3287 pci_free_consistent(phba->pcidev, num_eq_pages
3288 * PAGE_SIZE,
3289 mem->va, mem->dma);
3290 }
3291 return ret;
3292 }
3293
3294 static int beiscsi_create_cqs(struct beiscsi_hba *phba,
3295 struct hwi_context_memory *phwi_context)
3296 {
3297 unsigned int i, num_cq_pages;
3298 int ret = 0;
3299 struct be_queue_info *cq, *eq;
3300 struct be_dma_mem *mem;
3301 struct be_eq_obj *pbe_eq;
3302 void *cq_vaddress;
3303 dma_addr_t paddr;
3304
3305 num_cq_pages = PAGES_REQUIRED(phba->params.num_cq_entries * \
3306 sizeof(struct sol_cqe));
3307
3308 for (i = 0; i < phba->num_cpus; i++) {
3309 cq = &phwi_context->be_cq[i];
3310 eq = &phwi_context->be_eq[i].q;
3311 pbe_eq = &phwi_context->be_eq[i];
3312 pbe_eq->cq = cq;
3313 pbe_eq->phba = phba;
3314 mem = &cq->dma_mem;
3315 cq_vaddress = pci_alloc_consistent(phba->pcidev,
3316 num_cq_pages * PAGE_SIZE,
3317 &paddr);
3318 if (!cq_vaddress)
3319 goto create_cq_error;
3320 ret = be_fill_queue(cq, phba->params.num_cq_entries,
3321 sizeof(struct sol_cqe), cq_vaddress);
3322 if (ret) {
3323 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
3324 "BM_%d : be_fill_queue Failed "
3325 "for ISCSI CQ\n");
3326 goto create_cq_error;
3327 }
3328
3329 mem->dma = paddr;
3330 ret = beiscsi_cmd_cq_create(&phba->ctrl, cq, eq, false,
3331 false, 0);
3332 if (ret) {
3333 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
3334 "BM_%d : beiscsi_cmd_eq_create"
3335 "Failed for ISCSI CQ\n");
3336 goto create_cq_error;
3337 }
3338 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
3339 "BM_%d : iscsi cq_id is %d for eq_id %d\n"
3340 "iSCSI CQ CREATED\n", cq->id, eq->id);
3341 }
3342 return 0;
3343
3344 create_cq_error:
3345 for (i = 0; i < phba->num_cpus; i++) {
3346 cq = &phwi_context->be_cq[i];
3347 mem = &cq->dma_mem;
3348 if (mem->va)
3349 pci_free_consistent(phba->pcidev, num_cq_pages
3350 * PAGE_SIZE,
3351 mem->va, mem->dma);
3352 }
3353 return ret;
3354
3355 }
3356
3357 static int
3358 beiscsi_create_def_hdr(struct beiscsi_hba *phba,
3359 struct hwi_context_memory *phwi_context,
3360 struct hwi_controller *phwi_ctrlr,
3361 unsigned int def_pdu_ring_sz, uint8_t ulp_num)
3362 {
3363 unsigned int idx;
3364 int ret;
3365 struct be_queue_info *dq, *cq;
3366 struct be_dma_mem *mem;
3367 struct be_mem_descriptor *mem_descr;
3368 void *dq_vaddress;
3369
3370 idx = 0;
3371 dq = &phwi_context->be_def_hdrq[ulp_num];
3372 cq = &phwi_context->be_cq[0];
3373 mem = &dq->dma_mem;
3374 mem_descr = phba->init_mem;
3375 mem_descr += HWI_MEM_ASYNC_HEADER_RING_ULP0 +
3376 (ulp_num * MEM_DESCR_OFFSET);
3377 dq_vaddress = mem_descr->mem_array[idx].virtual_address;
3378 ret = be_fill_queue(dq, mem_descr->mem_array[0].size /
3379 sizeof(struct phys_addr),
3380 sizeof(struct phys_addr), dq_vaddress);
3381 if (ret) {
3382 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
3383 "BM_%d : be_fill_queue Failed for DEF PDU HDR on ULP : %d\n",
3384 ulp_num);
3385
3386 return ret;
3387 }
3388 mem->dma = (unsigned long)mem_descr->mem_array[idx].
3389 bus_address.u.a64.address;
3390 ret = be_cmd_create_default_pdu_queue(&phba->ctrl, cq, dq,
3391 def_pdu_ring_sz,
3392 phba->params.defpdu_hdr_sz,
3393 BEISCSI_DEFQ_HDR, ulp_num);
3394 if (ret) {
3395 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
3396 "BM_%d : be_cmd_create_default_pdu_queue Failed DEFHDR on ULP : %d\n",
3397 ulp_num);
3398
3399 return ret;
3400 }
3401
3402 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
3403 "BM_%d : iscsi hdr def pdu id for ULP : %d is %d\n",
3404 ulp_num,
3405 phwi_context->be_def_hdrq[ulp_num].id);
3406 hwi_post_async_buffers(phba, BEISCSI_DEFQ_HDR, ulp_num);
3407 return 0;
3408 }
3409
3410 static int
3411 beiscsi_create_def_data(struct beiscsi_hba *phba,
3412 struct hwi_context_memory *phwi_context,
3413 struct hwi_controller *phwi_ctrlr,
3414 unsigned int def_pdu_ring_sz, uint8_t ulp_num)
3415 {
3416 unsigned int idx;
3417 int ret;
3418 struct be_queue_info *dataq, *cq;
3419 struct be_dma_mem *mem;
3420 struct be_mem_descriptor *mem_descr;
3421 void *dq_vaddress;
3422
3423 idx = 0;
3424 dataq = &phwi_context->be_def_dataq[ulp_num];
3425 cq = &phwi_context->be_cq[0];
3426 mem = &dataq->dma_mem;
3427 mem_descr = phba->init_mem;
3428 mem_descr += HWI_MEM_ASYNC_DATA_RING_ULP0 +
3429 (ulp_num * MEM_DESCR_OFFSET);
3430 dq_vaddress = mem_descr->mem_array[idx].virtual_address;
3431 ret = be_fill_queue(dataq, mem_descr->mem_array[0].size /
3432 sizeof(struct phys_addr),
3433 sizeof(struct phys_addr), dq_vaddress);
3434 if (ret) {
3435 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
3436 "BM_%d : be_fill_queue Failed for DEF PDU "
3437 "DATA on ULP : %d\n",
3438 ulp_num);
3439
3440 return ret;
3441 }
3442 mem->dma = (unsigned long)mem_descr->mem_array[idx].
3443 bus_address.u.a64.address;
3444 ret = be_cmd_create_default_pdu_queue(&phba->ctrl, cq, dataq,
3445 def_pdu_ring_sz,
3446 phba->params.defpdu_data_sz,
3447 BEISCSI_DEFQ_DATA, ulp_num);
3448 if (ret) {
3449 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
3450 "BM_%d be_cmd_create_default_pdu_queue"
3451 " Failed for DEF PDU DATA on ULP : %d\n",
3452 ulp_num);
3453 return ret;
3454 }
3455
3456 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
3457 "BM_%d : iscsi def data id on ULP : %d is %d\n",
3458 ulp_num,
3459 phwi_context->be_def_dataq[ulp_num].id);
3460
3461 hwi_post_async_buffers(phba, BEISCSI_DEFQ_DATA, ulp_num);
3462 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
3463 "BM_%d : DEFAULT PDU DATA RING CREATED"
3464 "on ULP : %d\n", ulp_num);
3465
3466 return 0;
3467 }
3468
3469
3470 static int
3471 beiscsi_post_template_hdr(struct beiscsi_hba *phba)
3472 {
3473 struct be_mem_descriptor *mem_descr;
3474 struct mem_array *pm_arr;
3475 struct be_dma_mem sgl;
3476 int status, ulp_num;
3477
3478 for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
3479 if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) {
3480 mem_descr = (struct be_mem_descriptor *)phba->init_mem;
3481 mem_descr += HWI_MEM_TEMPLATE_HDR_ULP0 +
3482 (ulp_num * MEM_DESCR_OFFSET);
3483 pm_arr = mem_descr->mem_array;
3484
3485 hwi_build_be_sgl_arr(phba, pm_arr, &sgl);
3486 status = be_cmd_iscsi_post_template_hdr(
3487 &phba->ctrl, &sgl);
3488
3489 if (status != 0) {
3490 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
3491 "BM_%d : Post Template HDR Failed for"
3492 "ULP_%d\n", ulp_num);
3493 return status;
3494 }
3495
3496 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
3497 "BM_%d : Template HDR Pages Posted for"
3498 "ULP_%d\n", ulp_num);
3499 }
3500 }
3501 return 0;
3502 }
3503
3504 static int
3505 beiscsi_post_pages(struct beiscsi_hba *phba)
3506 {
3507 struct be_mem_descriptor *mem_descr;
3508 struct mem_array *pm_arr;
3509 unsigned int page_offset, i;
3510 struct be_dma_mem sgl;
3511 int status, ulp_num = 0;
3512
3513 mem_descr = phba->init_mem;
3514 mem_descr += HWI_MEM_SGE;
3515 pm_arr = mem_descr->mem_array;
3516
3517 for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++)
3518 if (test_bit(ulp_num, &phba->fw_config.ulp_supported))
3519 break;
3520
3521 page_offset = (sizeof(struct iscsi_sge) * phba->params.num_sge_per_io *
3522 phba->fw_config.iscsi_icd_start[ulp_num]) / PAGE_SIZE;
3523 for (i = 0; i < mem_descr->num_elements; i++) {
3524 hwi_build_be_sgl_arr(phba, pm_arr, &sgl);
3525 status = be_cmd_iscsi_post_sgl_pages(&phba->ctrl, &sgl,
3526 page_offset,
3527 (pm_arr->size / PAGE_SIZE));
3528 page_offset += pm_arr->size / PAGE_SIZE;
3529 if (status != 0) {
3530 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
3531 "BM_%d : post sgl failed.\n");
3532 return status;
3533 }
3534 pm_arr++;
3535 }
3536 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
3537 "BM_%d : POSTED PAGES\n");
3538 return 0;
3539 }
3540
3541 static void be_queue_free(struct beiscsi_hba *phba, struct be_queue_info *q)
3542 {
3543 struct be_dma_mem *mem = &q->dma_mem;
3544 if (mem->va) {
3545 pci_free_consistent(phba->pcidev, mem->size,
3546 mem->va, mem->dma);
3547 mem->va = NULL;
3548 }
3549 }
3550
3551 static int be_queue_alloc(struct beiscsi_hba *phba, struct be_queue_info *q,
3552 u16 len, u16 entry_size)
3553 {
3554 struct be_dma_mem *mem = &q->dma_mem;
3555
3556 memset(q, 0, sizeof(*q));
3557 q->len = len;
3558 q->entry_size = entry_size;
3559 mem->size = len * entry_size;
3560 mem->va = pci_alloc_consistent(phba->pcidev, mem->size, &mem->dma);
3561 if (!mem->va)
3562 return -ENOMEM;
3563 memset(mem->va, 0, mem->size);
3564 return 0;
3565 }
3566
3567 static int
3568 beiscsi_create_wrb_rings(struct beiscsi_hba *phba,
3569 struct hwi_context_memory *phwi_context,
3570 struct hwi_controller *phwi_ctrlr)
3571 {
3572 unsigned int wrb_mem_index, offset, size, num_wrb_rings;
3573 u64 pa_addr_lo;
3574 unsigned int idx, num, i, ulp_num;
3575 struct mem_array *pwrb_arr;
3576 void *wrb_vaddr;
3577 struct be_dma_mem sgl;
3578 struct be_mem_descriptor *mem_descr;
3579 struct hwi_wrb_context *pwrb_context;
3580 int status;
3581 uint8_t ulp_count = 0, ulp_base_num = 0;
3582 uint16_t cid_count_ulp[BEISCSI_ULP_COUNT] = { 0 };
3583
3584 idx = 0;
3585 mem_descr = phba->init_mem;
3586 mem_descr += HWI_MEM_WRB;
3587 pwrb_arr = kmalloc(sizeof(*pwrb_arr) * phba->params.cxns_per_ctrl,
3588 GFP_KERNEL);
3589 if (!pwrb_arr) {
3590 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
3591 "BM_%d : Memory alloc failed in create wrb ring.\n");
3592 return -ENOMEM;
3593 }
3594 wrb_vaddr = mem_descr->mem_array[idx].virtual_address;
3595 pa_addr_lo = mem_descr->mem_array[idx].bus_address.u.a64.address;
3596 num_wrb_rings = mem_descr->mem_array[idx].size /
3597 (phba->params.wrbs_per_cxn * sizeof(struct iscsi_wrb));
3598
3599 for (num = 0; num < phba->params.cxns_per_ctrl; num++) {
3600 if (num_wrb_rings) {
3601 pwrb_arr[num].virtual_address = wrb_vaddr;
3602 pwrb_arr[num].bus_address.u.a64.address = pa_addr_lo;
3603 pwrb_arr[num].size = phba->params.wrbs_per_cxn *
3604 sizeof(struct iscsi_wrb);
3605 wrb_vaddr += pwrb_arr[num].size;
3606 pa_addr_lo += pwrb_arr[num].size;
3607 num_wrb_rings--;
3608 } else {
3609 idx++;
3610 wrb_vaddr = mem_descr->mem_array[idx].virtual_address;
3611 pa_addr_lo = mem_descr->mem_array[idx].\
3612 bus_address.u.a64.address;
3613 num_wrb_rings = mem_descr->mem_array[idx].size /
3614 (phba->params.wrbs_per_cxn *
3615 sizeof(struct iscsi_wrb));
3616 pwrb_arr[num].virtual_address = wrb_vaddr;
3617 pwrb_arr[num].bus_address.u.a64.address\
3618 = pa_addr_lo;
3619 pwrb_arr[num].size = phba->params.wrbs_per_cxn *
3620 sizeof(struct iscsi_wrb);
3621 wrb_vaddr += pwrb_arr[num].size;
3622 pa_addr_lo += pwrb_arr[num].size;
3623 num_wrb_rings--;
3624 }
3625 }
3626
3627 /* Get the ULP Count */
3628 for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++)
3629 if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) {
3630 ulp_count++;
3631 ulp_base_num = ulp_num;
3632 cid_count_ulp[ulp_num] =
3633 BEISCSI_GET_CID_COUNT(phba, ulp_num);
3634 }
3635
3636 for (i = 0; i < phba->params.cxns_per_ctrl; i++) {
3637 wrb_mem_index = 0;
3638 offset = 0;
3639 size = 0;
3640
3641 if (ulp_count > 1) {
3642 ulp_base_num = (ulp_base_num + 1) % BEISCSI_ULP_COUNT;
3643
3644 if (!cid_count_ulp[ulp_base_num])
3645 ulp_base_num = (ulp_base_num + 1) %
3646 BEISCSI_ULP_COUNT;
3647
3648 cid_count_ulp[ulp_base_num]--;
3649 }
3650
3651
3652 hwi_build_be_sgl_by_offset(phba, &pwrb_arr[i], &sgl);
3653 status = be_cmd_wrbq_create(&phba->ctrl, &sgl,
3654 &phwi_context->be_wrbq[i],
3655 &phwi_ctrlr->wrb_context[i],
3656 ulp_base_num);
3657 if (status != 0) {
3658 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
3659 "BM_%d : wrbq create failed.");
3660 kfree(pwrb_arr);
3661 return status;
3662 }
3663 pwrb_context = &phwi_ctrlr->wrb_context[i];
3664 BE_SET_CID_TO_CRI(i, pwrb_context->cid);
3665 }
3666 kfree(pwrb_arr);
3667 return 0;
3668 }
3669
3670 static void free_wrb_handles(struct beiscsi_hba *phba)
3671 {
3672 unsigned int index;
3673 struct hwi_controller *phwi_ctrlr;
3674 struct hwi_wrb_context *pwrb_context;
3675
3676 phwi_ctrlr = phba->phwi_ctrlr;
3677 for (index = 0; index < phba->params.cxns_per_ctrl; index++) {
3678 pwrb_context = &phwi_ctrlr->wrb_context[index];
3679 kfree(pwrb_context->pwrb_handle_base);
3680 kfree(pwrb_context->pwrb_handle_basestd);
3681 }
3682 }
3683
3684 static void be_mcc_queues_destroy(struct beiscsi_hba *phba)
3685 {
3686 struct be_queue_info *q;
3687 struct be_ctrl_info *ctrl = &phba->ctrl;
3688
3689 q = &phba->ctrl.mcc_obj.q;
3690 if (q->created)
3691 beiscsi_cmd_q_destroy(ctrl, q, QTYPE_MCCQ);
3692 be_queue_free(phba, q);
3693
3694 q = &phba->ctrl.mcc_obj.cq;
3695 if (q->created)
3696 beiscsi_cmd_q_destroy(ctrl, q, QTYPE_CQ);
3697 be_queue_free(phba, q);
3698 }
3699
3700 static void hwi_cleanup(struct beiscsi_hba *phba)
3701 {
3702 struct be_queue_info *q;
3703 struct be_ctrl_info *ctrl = &phba->ctrl;
3704 struct hwi_controller *phwi_ctrlr;
3705 struct hwi_context_memory *phwi_context;
3706 struct hwi_async_pdu_context *pasync_ctx;
3707 int i, eq_num, ulp_num;
3708
3709 phwi_ctrlr = phba->phwi_ctrlr;
3710 phwi_context = phwi_ctrlr->phwi_ctxt;
3711
3712 be_cmd_iscsi_remove_template_hdr(ctrl);
3713
3714 for (i = 0; i < phba->params.cxns_per_ctrl; i++) {
3715 q = &phwi_context->be_wrbq[i];
3716 if (q->created)
3717 beiscsi_cmd_q_destroy(ctrl, q, QTYPE_WRBQ);
3718 }
3719 kfree(phwi_context->be_wrbq);
3720 free_wrb_handles(phba);
3721
3722 for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
3723 if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) {
3724
3725 q = &phwi_context->be_def_hdrq[ulp_num];
3726 if (q->created)
3727 beiscsi_cmd_q_destroy(ctrl, q, QTYPE_DPDUQ);
3728
3729 q = &phwi_context->be_def_dataq[ulp_num];
3730 if (q->created)
3731 beiscsi_cmd_q_destroy(ctrl, q, QTYPE_DPDUQ);
3732
3733 pasync_ctx = phwi_ctrlr->phwi_ctxt->pasync_ctx[ulp_num];
3734 }
3735 }
3736
3737 beiscsi_cmd_q_destroy(ctrl, NULL, QTYPE_SGL);
3738
3739 for (i = 0; i < (phba->num_cpus); i++) {
3740 q = &phwi_context->be_cq[i];
3741 if (q->created)
3742 beiscsi_cmd_q_destroy(ctrl, q, QTYPE_CQ);
3743 }
3744 if (phba->msix_enabled)
3745 eq_num = 1;
3746 else
3747 eq_num = 0;
3748 for (i = 0; i < (phba->num_cpus + eq_num); i++) {
3749 q = &phwi_context->be_eq[i].q;
3750 if (q->created)
3751 beiscsi_cmd_q_destroy(ctrl, q, QTYPE_EQ);
3752 }
3753 be_mcc_queues_destroy(phba);
3754 be_cmd_fw_uninit(ctrl);
3755 }
3756
3757 static int be_mcc_queues_create(struct beiscsi_hba *phba,
3758 struct hwi_context_memory *phwi_context)
3759 {
3760 struct be_queue_info *q, *cq;
3761 struct be_ctrl_info *ctrl = &phba->ctrl;
3762
3763 /* Alloc MCC compl queue */
3764 cq = &phba->ctrl.mcc_obj.cq;
3765 if (be_queue_alloc(phba, cq, MCC_CQ_LEN,
3766 sizeof(struct be_mcc_compl)))
3767 goto err;
3768 /* Ask BE to create MCC compl queue; */
3769 if (phba->msix_enabled) {
3770 if (beiscsi_cmd_cq_create(ctrl, cq, &phwi_context->be_eq
3771 [phba->num_cpus].q, false, true, 0))
3772 goto mcc_cq_free;
3773 } else {
3774 if (beiscsi_cmd_cq_create(ctrl, cq, &phwi_context->be_eq[0].q,
3775 false, true, 0))
3776 goto mcc_cq_free;
3777 }
3778
3779 /* Alloc MCC queue */
3780 q = &phba->ctrl.mcc_obj.q;
3781 if (be_queue_alloc(phba, q, MCC_Q_LEN, sizeof(struct be_mcc_wrb)))
3782 goto mcc_cq_destroy;
3783
3784 /* Ask BE to create MCC queue */
3785 if (beiscsi_cmd_mccq_create(phba, q, cq))
3786 goto mcc_q_free;
3787
3788 return 0;
3789
3790 mcc_q_free:
3791 be_queue_free(phba, q);
3792 mcc_cq_destroy:
3793 beiscsi_cmd_q_destroy(ctrl, cq, QTYPE_CQ);
3794 mcc_cq_free:
3795 be_queue_free(phba, cq);
3796 err:
3797 return -ENOMEM;
3798 }
3799
3800 /**
3801 * find_num_cpus()- Get the CPU online count
3802 * @phba: ptr to priv structure
3803 *
3804 * CPU count is used for creating EQ.
3805 **/
3806 static void find_num_cpus(struct beiscsi_hba *phba)
3807 {
3808 int num_cpus = 0;
3809
3810 num_cpus = num_online_cpus();
3811
3812 switch (phba->generation) {
3813 case BE_GEN2:
3814 case BE_GEN3:
3815 phba->num_cpus = (num_cpus > BEISCSI_MAX_NUM_CPUS) ?
3816 BEISCSI_MAX_NUM_CPUS : num_cpus;
3817 break;
3818 case BE_GEN4:
3819 /*
3820 * If eqid_count == 1 fall back to
3821 * INTX mechanism
3822 **/
3823 if (phba->fw_config.eqid_count == 1) {
3824 enable_msix = 0;
3825 phba->num_cpus = 1;
3826 return;
3827 }
3828
3829 phba->num_cpus =
3830 (num_cpus > (phba->fw_config.eqid_count - 1)) ?
3831 (phba->fw_config.eqid_count - 1) : num_cpus;
3832 break;
3833 default:
3834 phba->num_cpus = 1;
3835 }
3836 }
3837
3838 static int hwi_init_port(struct beiscsi_hba *phba)
3839 {
3840 struct hwi_controller *phwi_ctrlr;
3841 struct hwi_context_memory *phwi_context;
3842 unsigned int def_pdu_ring_sz;
3843 struct be_ctrl_info *ctrl = &phba->ctrl;
3844 int status, ulp_num;
3845
3846 phwi_ctrlr = phba->phwi_ctrlr;
3847 phwi_context = phwi_ctrlr->phwi_ctxt;
3848 phwi_context->max_eqd = 0;
3849 phwi_context->min_eqd = 0;
3850 phwi_context->cur_eqd = 64;
3851 be_cmd_fw_initialize(&phba->ctrl);
3852
3853 status = beiscsi_create_eqs(phba, phwi_context);
3854 if (status != 0) {
3855 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
3856 "BM_%d : EQ not created\n");
3857 goto error;
3858 }
3859
3860 status = be_mcc_queues_create(phba, phwi_context);
3861 if (status != 0)
3862 goto error;
3863
3864 status = mgmt_check_supported_fw(ctrl, phba);
3865 if (status != 0) {
3866 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
3867 "BM_%d : Unsupported fw version\n");
3868 goto error;
3869 }
3870
3871 status = beiscsi_create_cqs(phba, phwi_context);
3872 if (status != 0) {
3873 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
3874 "BM_%d : CQ not created\n");
3875 goto error;
3876 }
3877
3878 for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
3879 if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) {
3880
3881 def_pdu_ring_sz =
3882 BEISCSI_GET_CID_COUNT(phba, ulp_num) *
3883 sizeof(struct phys_addr);
3884
3885 status = beiscsi_create_def_hdr(phba, phwi_context,
3886 phwi_ctrlr,
3887 def_pdu_ring_sz,
3888 ulp_num);
3889 if (status != 0) {
3890 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
3891 "BM_%d : Default Header not created for ULP : %d\n",
3892 ulp_num);
3893 goto error;
3894 }
3895
3896 status = beiscsi_create_def_data(phba, phwi_context,
3897 phwi_ctrlr,
3898 def_pdu_ring_sz,
3899 ulp_num);
3900 if (status != 0) {
3901 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
3902 "BM_%d : Default Data not created for ULP : %d\n",
3903 ulp_num);
3904 goto error;
3905 }
3906 }
3907 }
3908
3909 status = beiscsi_post_pages(phba);
3910 if (status != 0) {
3911 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
3912 "BM_%d : Post SGL Pages Failed\n");
3913 goto error;
3914 }
3915
3916 status = beiscsi_post_template_hdr(phba);
3917 if (status != 0) {
3918 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
3919 "BM_%d : Template HDR Posting for CXN Failed\n");
3920 }
3921
3922 status = beiscsi_create_wrb_rings(phba, phwi_context, phwi_ctrlr);
3923 if (status != 0) {
3924 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
3925 "BM_%d : WRB Rings not created\n");
3926 goto error;
3927 }
3928
3929 for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
3930 uint16_t async_arr_idx = 0;
3931
3932 if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) {
3933 uint16_t cri = 0;
3934 struct hwi_async_pdu_context *pasync_ctx;
3935
3936 pasync_ctx = HWI_GET_ASYNC_PDU_CTX(
3937 phwi_ctrlr, ulp_num);
3938 for (cri = 0; cri <
3939 phba->params.cxns_per_ctrl; cri++) {
3940 if (ulp_num == BEISCSI_GET_ULP_FROM_CRI
3941 (phwi_ctrlr, cri))
3942 pasync_ctx->cid_to_async_cri_map[
3943 phwi_ctrlr->wrb_context[cri].cid] =
3944 async_arr_idx++;
3945 }
3946 }
3947 }
3948
3949 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
3950 "BM_%d : hwi_init_port success\n");
3951 return 0;
3952
3953 error:
3954 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
3955 "BM_%d : hwi_init_port failed");
3956 hwi_cleanup(phba);
3957 return status;
3958 }
3959
3960 static int hwi_init_controller(struct beiscsi_hba *phba)
3961 {
3962 struct hwi_controller *phwi_ctrlr;
3963
3964 phwi_ctrlr = phba->phwi_ctrlr;
3965 if (1 == phba->init_mem[HWI_MEM_ADDN_CONTEXT].num_elements) {
3966 phwi_ctrlr->phwi_ctxt = (struct hwi_context_memory *)phba->
3967 init_mem[HWI_MEM_ADDN_CONTEXT].mem_array[0].virtual_address;
3968 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
3969 "BM_%d : phwi_ctrlr->phwi_ctxt=%p\n",
3970 phwi_ctrlr->phwi_ctxt);
3971 } else {
3972 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
3973 "BM_%d : HWI_MEM_ADDN_CONTEXT is more "
3974 "than one element.Failing to load\n");
3975 return -ENOMEM;
3976 }
3977
3978 iscsi_init_global_templates(phba);
3979 if (beiscsi_init_wrb_handle(phba))
3980 return -ENOMEM;
3981
3982 if (hwi_init_async_pdu_ctx(phba)) {
3983 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
3984 "BM_%d : hwi_init_async_pdu_ctx failed\n");
3985 return -ENOMEM;
3986 }
3987
3988 if (hwi_init_port(phba) != 0) {
3989 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
3990 "BM_%d : hwi_init_controller failed\n");
3991
3992 return -ENOMEM;
3993 }
3994 return 0;
3995 }
3996
3997 static void beiscsi_free_mem(struct beiscsi_hba *phba)
3998 {
3999 struct be_mem_descriptor *mem_descr;
4000 int i, j;
4001
4002 mem_descr = phba->init_mem;
4003 i = 0;
4004 j = 0;
4005 for (i = 0; i < SE_MEM_MAX; i++) {
4006 for (j = mem_descr->num_elements; j > 0; j--) {
4007 pci_free_consistent(phba->pcidev,
4008 mem_descr->mem_array[j - 1].size,
4009 mem_descr->mem_array[j - 1].virtual_address,
4010 (unsigned long)mem_descr->mem_array[j - 1].
4011 bus_address.u.a64.address);
4012 }
4013
4014 kfree(mem_descr->mem_array);
4015 mem_descr++;
4016 }
4017 kfree(phba->init_mem);
4018 kfree(phba->phwi_ctrlr->wrb_context);
4019 kfree(phba->phwi_ctrlr);
4020 }
4021
4022 static int beiscsi_init_controller(struct beiscsi_hba *phba)
4023 {
4024 int ret = -ENOMEM;
4025
4026 ret = beiscsi_get_memory(phba);
4027 if (ret < 0) {
4028 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
4029 "BM_%d : beiscsi_dev_probe -"
4030 "Failed in beiscsi_alloc_memory\n");
4031 return ret;
4032 }
4033
4034 ret = hwi_init_controller(phba);
4035 if (ret)
4036 goto free_init;
4037 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
4038 "BM_%d : Return success from beiscsi_init_controller");
4039
4040 return 0;
4041
4042 free_init:
4043 beiscsi_free_mem(phba);
4044 return ret;
4045 }
4046
4047 static int beiscsi_init_sgl_handle(struct beiscsi_hba *phba)
4048 {
4049 struct be_mem_descriptor *mem_descr_sglh, *mem_descr_sg;
4050 struct sgl_handle *psgl_handle;
4051 struct iscsi_sge *pfrag;
4052 unsigned int arr_index, i, idx;
4053 unsigned int ulp_icd_start, ulp_num = 0;
4054
4055 phba->io_sgl_hndl_avbl = 0;
4056 phba->eh_sgl_hndl_avbl = 0;
4057
4058 mem_descr_sglh = phba->init_mem;
4059 mem_descr_sglh += HWI_MEM_SGLH;
4060 if (1 == mem_descr_sglh->num_elements) {
4061 phba->io_sgl_hndl_base = kzalloc(sizeof(struct sgl_handle *) *
4062 phba->params.ios_per_ctrl,
4063 GFP_KERNEL);
4064 if (!phba->io_sgl_hndl_base) {
4065 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
4066 "BM_%d : Mem Alloc Failed. Failing to load\n");
4067 return -ENOMEM;
4068 }
4069 phba->eh_sgl_hndl_base = kzalloc(sizeof(struct sgl_handle *) *
4070 (phba->params.icds_per_ctrl -
4071 phba->params.ios_per_ctrl),
4072 GFP_KERNEL);
4073 if (!phba->eh_sgl_hndl_base) {
4074 kfree(phba->io_sgl_hndl_base);
4075 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
4076 "BM_%d : Mem Alloc Failed. Failing to load\n");
4077 return -ENOMEM;
4078 }
4079 } else {
4080 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
4081 "BM_%d : HWI_MEM_SGLH is more than one element."
4082 "Failing to load\n");
4083 return -ENOMEM;
4084 }
4085
4086 arr_index = 0;
4087 idx = 0;
4088 while (idx < mem_descr_sglh->num_elements) {
4089 psgl_handle = mem_descr_sglh->mem_array[idx].virtual_address;
4090
4091 for (i = 0; i < (mem_descr_sglh->mem_array[idx].size /
4092 sizeof(struct sgl_handle)); i++) {
4093 if (arr_index < phba->params.ios_per_ctrl) {
4094 phba->io_sgl_hndl_base[arr_index] = psgl_handle;
4095 phba->io_sgl_hndl_avbl++;
4096 arr_index++;
4097 } else {
4098 phba->eh_sgl_hndl_base[arr_index -
4099 phba->params.ios_per_ctrl] =
4100 psgl_handle;
4101 arr_index++;
4102 phba->eh_sgl_hndl_avbl++;
4103 }
4104 psgl_handle++;
4105 }
4106 idx++;
4107 }
4108 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
4109 "BM_%d : phba->io_sgl_hndl_avbl=%d"
4110 "phba->eh_sgl_hndl_avbl=%d\n",
4111 phba->io_sgl_hndl_avbl,
4112 phba->eh_sgl_hndl_avbl);
4113
4114 mem_descr_sg = phba->init_mem;
4115 mem_descr_sg += HWI_MEM_SGE;
4116 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
4117 "\n BM_%d : mem_descr_sg->num_elements=%d\n",
4118 mem_descr_sg->num_elements);
4119
4120 for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++)
4121 if (test_bit(ulp_num, &phba->fw_config.ulp_supported))
4122 break;
4123
4124 ulp_icd_start = phba->fw_config.iscsi_icd_start[ulp_num];
4125
4126 arr_index = 0;
4127 idx = 0;
4128 while (idx < mem_descr_sg->num_elements) {
4129 pfrag = mem_descr_sg->mem_array[idx].virtual_address;
4130
4131 for (i = 0;
4132 i < (mem_descr_sg->mem_array[idx].size) /
4133 (sizeof(struct iscsi_sge) * phba->params.num_sge_per_io);
4134 i++) {
4135 if (arr_index < phba->params.ios_per_ctrl)
4136 psgl_handle = phba->io_sgl_hndl_base[arr_index];
4137 else
4138 psgl_handle = phba->eh_sgl_hndl_base[arr_index -
4139 phba->params.ios_per_ctrl];
4140 psgl_handle->pfrag = pfrag;
4141 AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, pfrag, 0);
4142 AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, pfrag, 0);
4143 pfrag += phba->params.num_sge_per_io;
4144 psgl_handle->sgl_index = ulp_icd_start + arr_index++;
4145 }
4146 idx++;
4147 }
4148 phba->io_sgl_free_index = 0;
4149 phba->io_sgl_alloc_index = 0;
4150 phba->eh_sgl_free_index = 0;
4151 phba->eh_sgl_alloc_index = 0;
4152 return 0;
4153 }
4154
4155 static int hba_setup_cid_tbls(struct beiscsi_hba *phba)
4156 {
4157 int ret;
4158 uint16_t i, ulp_num;
4159 struct ulp_cid_info *ptr_cid_info = NULL;
4160
4161 for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
4162 if (test_bit(ulp_num, (void *)&phba->fw_config.ulp_supported)) {
4163 ptr_cid_info = kzalloc(sizeof(struct ulp_cid_info),
4164 GFP_KERNEL);
4165
4166 if (!ptr_cid_info) {
4167 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
4168 "BM_%d : Failed to allocate memory"
4169 "for ULP_CID_INFO for ULP : %d\n",
4170 ulp_num);
4171 ret = -ENOMEM;
4172 goto free_memory;
4173
4174 }
4175
4176 /* Allocate memory for CID array */
4177 ptr_cid_info->cid_array = kzalloc(sizeof(void *) *
4178 BEISCSI_GET_CID_COUNT(phba,
4179 ulp_num), GFP_KERNEL);
4180 if (!ptr_cid_info->cid_array) {
4181 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
4182 "BM_%d : Failed to allocate memory"
4183 "for CID_ARRAY for ULP : %d\n",
4184 ulp_num);
4185 kfree(ptr_cid_info);
4186 ptr_cid_info = NULL;
4187 ret = -ENOMEM;
4188
4189 goto free_memory;
4190 }
4191 ptr_cid_info->avlbl_cids = BEISCSI_GET_CID_COUNT(
4192 phba, ulp_num);
4193
4194 /* Save the cid_info_array ptr */
4195 phba->cid_array_info[ulp_num] = ptr_cid_info;
4196 }
4197 }
4198 phba->ep_array = kzalloc(sizeof(struct iscsi_endpoint *) *
4199 phba->params.cxns_per_ctrl, GFP_KERNEL);
4200 if (!phba->ep_array) {
4201 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
4202 "BM_%d : Failed to allocate memory in "
4203 "hba_setup_cid_tbls\n");
4204 ret = -ENOMEM;
4205
4206 goto free_memory;
4207 }
4208
4209 phba->conn_table = kzalloc(sizeof(struct beiscsi_conn *) *
4210 phba->params.cxns_per_ctrl, GFP_KERNEL);
4211 if (!phba->conn_table) {
4212 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
4213 "BM_%d : Failed to allocate memory in"
4214 "hba_setup_cid_tbls\n");
4215
4216 kfree(phba->ep_array);
4217 phba->ep_array = NULL;
4218 ret = -ENOMEM;
4219 }
4220
4221 for (i = 0; i < phba->params.cxns_per_ctrl; i++) {
4222 ulp_num = phba->phwi_ctrlr->wrb_context[i].ulp_num;
4223
4224 ptr_cid_info = phba->cid_array_info[ulp_num];
4225 ptr_cid_info->cid_array[ptr_cid_info->cid_alloc++] =
4226 phba->phwi_ctrlr->wrb_context[i].cid;
4227
4228 }
4229
4230 for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
4231 if (test_bit(ulp_num, (void *)&phba->fw_config.ulp_supported)) {
4232 ptr_cid_info = phba->cid_array_info[ulp_num];
4233
4234 ptr_cid_info->cid_alloc = 0;
4235 ptr_cid_info->cid_free = 0;
4236 }
4237 }
4238 return 0;
4239
4240 free_memory:
4241 for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
4242 if (test_bit(ulp_num, (void *)&phba->fw_config.ulp_supported)) {
4243 ptr_cid_info = phba->cid_array_info[ulp_num];
4244
4245 if (ptr_cid_info) {
4246 kfree(ptr_cid_info->cid_array);
4247 kfree(ptr_cid_info);
4248 phba->cid_array_info[ulp_num] = NULL;
4249 }
4250 }
4251 }
4252
4253 return ret;
4254 }
4255
4256 static void hwi_enable_intr(struct beiscsi_hba *phba)
4257 {
4258 struct be_ctrl_info *ctrl = &phba->ctrl;
4259 struct hwi_controller *phwi_ctrlr;
4260 struct hwi_context_memory *phwi_context;
4261 struct be_queue_info *eq;
4262 u8 __iomem *addr;
4263 u32 reg, i;
4264 u32 enabled;
4265
4266 phwi_ctrlr = phba->phwi_ctrlr;
4267 phwi_context = phwi_ctrlr->phwi_ctxt;
4268
4269 addr = (u8 __iomem *) ((u8 __iomem *) ctrl->pcicfg +
4270 PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET);
4271 reg = ioread32(addr);
4272
4273 enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
4274 if (!enabled) {
4275 reg |= MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
4276 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
4277 "BM_%d : reg =x%08x addr=%p\n", reg, addr);
4278 iowrite32(reg, addr);
4279 }
4280
4281 if (!phba->msix_enabled) {
4282 eq = &phwi_context->be_eq[0].q;
4283 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
4284 "BM_%d : eq->id=%d\n", eq->id);
4285
4286 hwi_ring_eq_db(phba, eq->id, 0, 0, 1, 1);
4287 } else {
4288 for (i = 0; i <= phba->num_cpus; i++) {
4289 eq = &phwi_context->be_eq[i].q;
4290 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
4291 "BM_%d : eq->id=%d\n", eq->id);
4292 hwi_ring_eq_db(phba, eq->id, 0, 0, 1, 1);
4293 }
4294 }
4295 }
4296
4297 static void hwi_disable_intr(struct beiscsi_hba *phba)
4298 {
4299 struct be_ctrl_info *ctrl = &phba->ctrl;
4300
4301 u8 __iomem *addr = ctrl->pcicfg + PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET;
4302 u32 reg = ioread32(addr);
4303
4304 u32 enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
4305 if (enabled) {
4306 reg &= ~MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
4307 iowrite32(reg, addr);
4308 } else
4309 beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_INIT,
4310 "BM_%d : In hwi_disable_intr, Already Disabled\n");
4311 }
4312
4313 /**
4314 * beiscsi_get_boot_info()- Get the boot session info
4315 * @phba: The device priv structure instance
4316 *
4317 * Get the boot target info and store in driver priv structure
4318 *
4319 * return values
4320 * Success: 0
4321 * Failure: Non-Zero Value
4322 **/
4323 static int beiscsi_get_boot_info(struct beiscsi_hba *phba)
4324 {
4325 struct be_cmd_get_session_resp *session_resp;
4326 struct be_dma_mem nonemb_cmd;
4327 unsigned int tag;
4328 unsigned int s_handle;
4329 int ret = -ENOMEM;
4330
4331 /* Get the session handle of the boot target */
4332 ret = be_mgmt_get_boot_shandle(phba, &s_handle);
4333 if (ret) {
4334 beiscsi_log(phba, KERN_ERR,
4335 BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG,
4336 "BM_%d : No boot session\n");
4337 return ret;
4338 }
4339 nonemb_cmd.va = pci_alloc_consistent(phba->ctrl.pdev,
4340 sizeof(*session_resp),
4341 &nonemb_cmd.dma);
4342 if (nonemb_cmd.va == NULL) {
4343 beiscsi_log(phba, KERN_ERR,
4344 BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG,
4345 "BM_%d : Failed to allocate memory for"
4346 "beiscsi_get_session_info\n");
4347
4348 return -ENOMEM;
4349 }
4350
4351 memset(nonemb_cmd.va, 0, sizeof(*session_resp));
4352 tag = mgmt_get_session_info(phba, s_handle,
4353 &nonemb_cmd);
4354 if (!tag) {
4355 beiscsi_log(phba, KERN_ERR,
4356 BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG,
4357 "BM_%d : beiscsi_get_session_info"
4358 " Failed\n");
4359
4360 goto boot_freemem;
4361 }
4362
4363 ret = beiscsi_mccq_compl(phba, tag, NULL, nonemb_cmd.va);
4364 if (ret) {
4365 beiscsi_log(phba, KERN_ERR,
4366 BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG,
4367 "BM_%d : beiscsi_get_session_info Failed");
4368 goto boot_freemem;
4369 }
4370
4371 session_resp = nonemb_cmd.va ;
4372
4373 memcpy(&phba->boot_sess, &session_resp->session_info,
4374 sizeof(struct mgmt_session_info));
4375 ret = 0;
4376
4377 boot_freemem:
4378 pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size,
4379 nonemb_cmd.va, nonemb_cmd.dma);
4380 return ret;
4381 }
4382
4383 static void beiscsi_boot_release(void *data)
4384 {
4385 struct beiscsi_hba *phba = data;
4386
4387 scsi_host_put(phba->shost);
4388 }
4389
4390 static int beiscsi_setup_boot_info(struct beiscsi_hba *phba)
4391 {
4392 struct iscsi_boot_kobj *boot_kobj;
4393
4394 /* get boot info using mgmt cmd */
4395 if (beiscsi_get_boot_info(phba))
4396 /* Try to see if we can carry on without this */
4397 return 0;
4398
4399 phba->boot_kset = iscsi_boot_create_host_kset(phba->shost->host_no);
4400 if (!phba->boot_kset)
4401 return -ENOMEM;
4402
4403 /* get a ref because the show function will ref the phba */
4404 if (!scsi_host_get(phba->shost))
4405 goto free_kset;
4406 boot_kobj = iscsi_boot_create_target(phba->boot_kset, 0, phba,
4407 beiscsi_show_boot_tgt_info,
4408 beiscsi_tgt_get_attr_visibility,
4409 beiscsi_boot_release);
4410 if (!boot_kobj)
4411 goto put_shost;
4412
4413 if (!scsi_host_get(phba->shost))
4414 goto free_kset;
4415 boot_kobj = iscsi_boot_create_initiator(phba->boot_kset, 0, phba,
4416 beiscsi_show_boot_ini_info,
4417 beiscsi_ini_get_attr_visibility,
4418 beiscsi_boot_release);
4419 if (!boot_kobj)
4420 goto put_shost;
4421
4422 if (!scsi_host_get(phba->shost))
4423 goto free_kset;
4424 boot_kobj = iscsi_boot_create_ethernet(phba->boot_kset, 0, phba,
4425 beiscsi_show_boot_eth_info,
4426 beiscsi_eth_get_attr_visibility,
4427 beiscsi_boot_release);
4428 if (!boot_kobj)
4429 goto put_shost;
4430 return 0;
4431
4432 put_shost:
4433 scsi_host_put(phba->shost);
4434 free_kset:
4435 iscsi_boot_destroy_kset(phba->boot_kset);
4436 return -ENOMEM;
4437 }
4438
4439 static int beiscsi_init_port(struct beiscsi_hba *phba)
4440 {
4441 int ret;
4442
4443 ret = beiscsi_init_controller(phba);
4444 if (ret < 0) {
4445 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
4446 "BM_%d : beiscsi_dev_probe - Failed in"
4447 "beiscsi_init_controller\n");
4448 return ret;
4449 }
4450 ret = beiscsi_init_sgl_handle(phba);
4451 if (ret < 0) {
4452 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
4453 "BM_%d : beiscsi_dev_probe - Failed in"
4454 "beiscsi_init_sgl_handle\n");
4455 goto do_cleanup_ctrlr;
4456 }
4457
4458 if (hba_setup_cid_tbls(phba)) {
4459 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
4460 "BM_%d : Failed in hba_setup_cid_tbls\n");
4461 kfree(phba->io_sgl_hndl_base);
4462 kfree(phba->eh_sgl_hndl_base);
4463 goto do_cleanup_ctrlr;
4464 }
4465
4466 return ret;
4467
4468 do_cleanup_ctrlr:
4469 hwi_cleanup(phba);
4470 return ret;
4471 }
4472
4473 static void hwi_purge_eq(struct beiscsi_hba *phba)
4474 {
4475 struct hwi_controller *phwi_ctrlr;
4476 struct hwi_context_memory *phwi_context;
4477 struct be_queue_info *eq;
4478 struct be_eq_entry *eqe = NULL;
4479 int i, eq_msix;
4480 unsigned int num_processed;
4481
4482 phwi_ctrlr = phba->phwi_ctrlr;
4483 phwi_context = phwi_ctrlr->phwi_ctxt;
4484 if (phba->msix_enabled)
4485 eq_msix = 1;
4486 else
4487 eq_msix = 0;
4488
4489 for (i = 0; i < (phba->num_cpus + eq_msix); i++) {
4490 eq = &phwi_context->be_eq[i].q;
4491 eqe = queue_tail_node(eq);
4492 num_processed = 0;
4493 while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32]
4494 & EQE_VALID_MASK) {
4495 AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0);
4496 queue_tail_inc(eq);
4497 eqe = queue_tail_node(eq);
4498 num_processed++;
4499 }
4500
4501 if (num_processed)
4502 hwi_ring_eq_db(phba, eq->id, 1, num_processed, 1, 1);
4503 }
4504 }
4505
4506 static void beiscsi_clean_port(struct beiscsi_hba *phba)
4507 {
4508 int mgmt_status, ulp_num;
4509 struct ulp_cid_info *ptr_cid_info = NULL;
4510
4511 for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
4512 if (test_bit(ulp_num, (void *)&phba->fw_config.ulp_supported)) {
4513 mgmt_status = mgmt_epfw_cleanup(phba, ulp_num);
4514 if (mgmt_status)
4515 beiscsi_log(phba, KERN_WARNING,
4516 BEISCSI_LOG_INIT,
4517 "BM_%d : mgmt_epfw_cleanup FAILED"
4518 " for ULP_%d\n", ulp_num);
4519 }
4520 }
4521
4522 hwi_purge_eq(phba);
4523 hwi_cleanup(phba);
4524 kfree(phba->io_sgl_hndl_base);
4525 kfree(phba->eh_sgl_hndl_base);
4526 kfree(phba->ep_array);
4527 kfree(phba->conn_table);
4528
4529 for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
4530 if (test_bit(ulp_num, (void *)&phba->fw_config.ulp_supported)) {
4531 ptr_cid_info = phba->cid_array_info[ulp_num];
4532
4533 if (ptr_cid_info) {
4534 kfree(ptr_cid_info->cid_array);
4535 kfree(ptr_cid_info);
4536 phba->cid_array_info[ulp_num] = NULL;
4537 }
4538 }
4539 }
4540
4541 }
4542
4543 /**
4544 * beiscsi_free_mgmt_task_handles()- Free driver CXN resources
4545 * @beiscsi_conn: ptr to the conn to be cleaned up
4546 * @task: ptr to iscsi_task resource to be freed.
4547 *
4548 * Free driver mgmt resources binded to CXN.
4549 **/
4550 void
4551 beiscsi_free_mgmt_task_handles(struct beiscsi_conn *beiscsi_conn,
4552 struct iscsi_task *task)
4553 {
4554 struct beiscsi_io_task *io_task;
4555 struct beiscsi_hba *phba = beiscsi_conn->phba;
4556 struct hwi_wrb_context *pwrb_context;
4557 struct hwi_controller *phwi_ctrlr;
4558 uint16_t cri_index = BE_GET_CRI_FROM_CID(
4559 beiscsi_conn->beiscsi_conn_cid);
4560
4561 phwi_ctrlr = phba->phwi_ctrlr;
4562 pwrb_context = &phwi_ctrlr->wrb_context[cri_index];
4563
4564 io_task = task->dd_data;
4565
4566 if (io_task->pwrb_handle) {
4567 memset(io_task->pwrb_handle->pwrb, 0,
4568 sizeof(struct iscsi_wrb));
4569 free_wrb_handle(phba, pwrb_context,
4570 io_task->pwrb_handle);
4571 io_task->pwrb_handle = NULL;
4572 }
4573
4574 if (io_task->psgl_handle) {
4575 spin_lock_bh(&phba->mgmt_sgl_lock);
4576 free_mgmt_sgl_handle(phba,
4577 io_task->psgl_handle);
4578 io_task->psgl_handle = NULL;
4579 spin_unlock_bh(&phba->mgmt_sgl_lock);
4580 }
4581
4582 if (io_task->mtask_addr)
4583 pci_unmap_single(phba->pcidev,
4584 io_task->mtask_addr,
4585 io_task->mtask_data_count,
4586 PCI_DMA_TODEVICE);
4587 }
4588
4589 /**
4590 * beiscsi_cleanup_task()- Free driver resources of the task
4591 * @task: ptr to the iscsi task
4592 *
4593 **/
4594 static void beiscsi_cleanup_task(struct iscsi_task *task)
4595 {
4596 struct beiscsi_io_task *io_task = task->dd_data;
4597 struct iscsi_conn *conn = task->conn;
4598 struct beiscsi_conn *beiscsi_conn = conn->dd_data;
4599 struct beiscsi_hba *phba = beiscsi_conn->phba;
4600 struct beiscsi_session *beiscsi_sess = beiscsi_conn->beiscsi_sess;
4601 struct hwi_wrb_context *pwrb_context;
4602 struct hwi_controller *phwi_ctrlr;
4603 uint16_t cri_index = BE_GET_CRI_FROM_CID(
4604 beiscsi_conn->beiscsi_conn_cid);
4605
4606 phwi_ctrlr = phba->phwi_ctrlr;
4607 pwrb_context = &phwi_ctrlr->wrb_context[cri_index];
4608
4609 if (io_task->cmd_bhs) {
4610 pci_pool_free(beiscsi_sess->bhs_pool, io_task->cmd_bhs,
4611 io_task->bhs_pa.u.a64.address);
4612 io_task->cmd_bhs = NULL;
4613 }
4614
4615 if (task->sc) {
4616 if (io_task->pwrb_handle) {
4617 free_wrb_handle(phba, pwrb_context,
4618 io_task->pwrb_handle);
4619 io_task->pwrb_handle = NULL;
4620 }
4621
4622 if (io_task->psgl_handle) {
4623 spin_lock(&phba->io_sgl_lock);
4624 free_io_sgl_handle(phba, io_task->psgl_handle);
4625 spin_unlock(&phba->io_sgl_lock);
4626 io_task->psgl_handle = NULL;
4627 }
4628 } else {
4629 if (!beiscsi_conn->login_in_progress)
4630 beiscsi_free_mgmt_task_handles(beiscsi_conn, task);
4631 }
4632 }
4633
4634 void
4635 beiscsi_offload_connection(struct beiscsi_conn *beiscsi_conn,
4636 struct beiscsi_offload_params *params)
4637 {
4638 struct wrb_handle *pwrb_handle;
4639 struct beiscsi_hba *phba = beiscsi_conn->phba;
4640 struct iscsi_task *task = beiscsi_conn->task;
4641 struct iscsi_session *session = task->conn->session;
4642 u32 doorbell = 0;
4643
4644 /*
4645 * We can always use 0 here because it is reserved by libiscsi for
4646 * login/startup related tasks.
4647 */
4648 beiscsi_conn->login_in_progress = 0;
4649 spin_lock_bh(&session->lock);
4650 beiscsi_cleanup_task(task);
4651 spin_unlock_bh(&session->lock);
4652
4653 pwrb_handle = alloc_wrb_handle(phba, beiscsi_conn->beiscsi_conn_cid);
4654
4655 /* Check for the adapter family */
4656 if (is_chip_be2_be3r(phba))
4657 beiscsi_offload_cxn_v0(params, pwrb_handle,
4658 phba->init_mem);
4659 else
4660 beiscsi_offload_cxn_v2(params, pwrb_handle);
4661
4662 be_dws_le_to_cpu(pwrb_handle->pwrb,
4663 sizeof(struct iscsi_target_context_update_wrb));
4664
4665 doorbell |= beiscsi_conn->beiscsi_conn_cid & DB_WRB_POST_CID_MASK;
4666 doorbell |= (pwrb_handle->wrb_index & DB_DEF_PDU_WRB_INDEX_MASK)
4667 << DB_DEF_PDU_WRB_INDEX_SHIFT;
4668 doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT;
4669 iowrite32(doorbell, phba->db_va +
4670 beiscsi_conn->doorbell_offset);
4671 }
4672
4673 static void beiscsi_parse_pdu(struct iscsi_conn *conn, itt_t itt,
4674 int *index, int *age)
4675 {
4676 *index = (int)itt;
4677 if (age)
4678 *age = conn->session->age;
4679 }
4680
4681 /**
4682 * beiscsi_alloc_pdu - allocates pdu and related resources
4683 * @task: libiscsi task
4684 * @opcode: opcode of pdu for task
4685 *
4686 * This is called with the session lock held. It will allocate
4687 * the wrb and sgl if needed for the command. And it will prep
4688 * the pdu's itt. beiscsi_parse_pdu will later translate
4689 * the pdu itt to the libiscsi task itt.
4690 */
4691 static int beiscsi_alloc_pdu(struct iscsi_task *task, uint8_t opcode)
4692 {
4693 struct beiscsi_io_task *io_task = task->dd_data;
4694 struct iscsi_conn *conn = task->conn;
4695 struct beiscsi_conn *beiscsi_conn = conn->dd_data;
4696 struct beiscsi_hba *phba = beiscsi_conn->phba;
4697 struct hwi_wrb_context *pwrb_context;
4698 struct hwi_controller *phwi_ctrlr;
4699 itt_t itt;
4700 uint16_t cri_index = 0;
4701 struct beiscsi_session *beiscsi_sess = beiscsi_conn->beiscsi_sess;
4702 dma_addr_t paddr;
4703
4704 io_task->cmd_bhs = pci_pool_alloc(beiscsi_sess->bhs_pool,
4705 GFP_ATOMIC, &paddr);
4706 if (!io_task->cmd_bhs)
4707 return -ENOMEM;
4708 io_task->bhs_pa.u.a64.address = paddr;
4709 io_task->libiscsi_itt = (itt_t)task->itt;
4710 io_task->conn = beiscsi_conn;
4711
4712 task->hdr = (struct iscsi_hdr *)&io_task->cmd_bhs->iscsi_hdr;
4713 task->hdr_max = sizeof(struct be_cmd_bhs);
4714 io_task->psgl_handle = NULL;
4715 io_task->pwrb_handle = NULL;
4716
4717 if (task->sc) {
4718 spin_lock(&phba->io_sgl_lock);
4719 io_task->psgl_handle = alloc_io_sgl_handle(phba);
4720 spin_unlock(&phba->io_sgl_lock);
4721 if (!io_task->psgl_handle) {
4722 beiscsi_log(phba, KERN_ERR,
4723 BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG,
4724 "BM_%d : Alloc of IO_SGL_ICD Failed"
4725 "for the CID : %d\n",
4726 beiscsi_conn->beiscsi_conn_cid);
4727 goto free_hndls;
4728 }
4729 io_task->pwrb_handle = alloc_wrb_handle(phba,
4730 beiscsi_conn->beiscsi_conn_cid);
4731 if (!io_task->pwrb_handle) {
4732 beiscsi_log(phba, KERN_ERR,
4733 BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG,
4734 "BM_%d : Alloc of WRB_HANDLE Failed"
4735 "for the CID : %d\n",
4736 beiscsi_conn->beiscsi_conn_cid);
4737 goto free_io_hndls;
4738 }
4739 } else {
4740 io_task->scsi_cmnd = NULL;
4741 if ((opcode & ISCSI_OPCODE_MASK) == ISCSI_OP_LOGIN) {
4742 beiscsi_conn->task = task;
4743 if (!beiscsi_conn->login_in_progress) {
4744 spin_lock(&phba->mgmt_sgl_lock);
4745 io_task->psgl_handle = (struct sgl_handle *)
4746 alloc_mgmt_sgl_handle(phba);
4747 spin_unlock(&phba->mgmt_sgl_lock);
4748 if (!io_task->psgl_handle) {
4749 beiscsi_log(phba, KERN_ERR,
4750 BEISCSI_LOG_IO |
4751 BEISCSI_LOG_CONFIG,
4752 "BM_%d : Alloc of MGMT_SGL_ICD Failed"
4753 "for the CID : %d\n",
4754 beiscsi_conn->
4755 beiscsi_conn_cid);
4756 goto free_hndls;
4757 }
4758
4759 beiscsi_conn->login_in_progress = 1;
4760 beiscsi_conn->plogin_sgl_handle =
4761 io_task->psgl_handle;
4762 io_task->pwrb_handle =
4763 alloc_wrb_handle(phba,
4764 beiscsi_conn->beiscsi_conn_cid);
4765 if (!io_task->pwrb_handle) {
4766 beiscsi_log(phba, KERN_ERR,
4767 BEISCSI_LOG_IO |
4768 BEISCSI_LOG_CONFIG,
4769 "BM_%d : Alloc of WRB_HANDLE Failed"
4770 "for the CID : %d\n",
4771 beiscsi_conn->
4772 beiscsi_conn_cid);
4773 goto free_mgmt_hndls;
4774 }
4775 beiscsi_conn->plogin_wrb_handle =
4776 io_task->pwrb_handle;
4777
4778 } else {
4779 io_task->psgl_handle =
4780 beiscsi_conn->plogin_sgl_handle;
4781 io_task->pwrb_handle =
4782 beiscsi_conn->plogin_wrb_handle;
4783 }
4784 } else {
4785 spin_lock(&phba->mgmt_sgl_lock);
4786 io_task->psgl_handle = alloc_mgmt_sgl_handle(phba);
4787 spin_unlock(&phba->mgmt_sgl_lock);
4788 if (!io_task->psgl_handle) {
4789 beiscsi_log(phba, KERN_ERR,
4790 BEISCSI_LOG_IO |
4791 BEISCSI_LOG_CONFIG,
4792 "BM_%d : Alloc of MGMT_SGL_ICD Failed"
4793 "for the CID : %d\n",
4794 beiscsi_conn->
4795 beiscsi_conn_cid);
4796 goto free_hndls;
4797 }
4798 io_task->pwrb_handle =
4799 alloc_wrb_handle(phba,
4800 beiscsi_conn->beiscsi_conn_cid);
4801 if (!io_task->pwrb_handle) {
4802 beiscsi_log(phba, KERN_ERR,
4803 BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG,
4804 "BM_%d : Alloc of WRB_HANDLE Failed"
4805 "for the CID : %d\n",
4806 beiscsi_conn->beiscsi_conn_cid);
4807 goto free_mgmt_hndls;
4808 }
4809
4810 }
4811 }
4812 itt = (itt_t) cpu_to_be32(((unsigned int)io_task->pwrb_handle->
4813 wrb_index << 16) | (unsigned int)
4814 (io_task->psgl_handle->sgl_index));
4815 io_task->pwrb_handle->pio_handle = task;
4816
4817 io_task->cmd_bhs->iscsi_hdr.itt = itt;
4818 return 0;
4819
4820 free_io_hndls:
4821 spin_lock(&phba->io_sgl_lock);
4822 free_io_sgl_handle(phba, io_task->psgl_handle);
4823 spin_unlock(&phba->io_sgl_lock);
4824 goto free_hndls;
4825 free_mgmt_hndls:
4826 spin_lock(&phba->mgmt_sgl_lock);
4827 free_mgmt_sgl_handle(phba, io_task->psgl_handle);
4828 io_task->psgl_handle = NULL;
4829 spin_unlock(&phba->mgmt_sgl_lock);
4830 free_hndls:
4831 phwi_ctrlr = phba->phwi_ctrlr;
4832 cri_index = BE_GET_CRI_FROM_CID(
4833 beiscsi_conn->beiscsi_conn_cid);
4834 pwrb_context = &phwi_ctrlr->wrb_context[cri_index];
4835 if (io_task->pwrb_handle)
4836 free_wrb_handle(phba, pwrb_context, io_task->pwrb_handle);
4837 io_task->pwrb_handle = NULL;
4838 pci_pool_free(beiscsi_sess->bhs_pool, io_task->cmd_bhs,
4839 io_task->bhs_pa.u.a64.address);
4840 io_task->cmd_bhs = NULL;
4841 return -ENOMEM;
4842 }
4843 int beiscsi_iotask_v2(struct iscsi_task *task, struct scatterlist *sg,
4844 unsigned int num_sg, unsigned int xferlen,
4845 unsigned int writedir)
4846 {
4847
4848 struct beiscsi_io_task *io_task = task->dd_data;
4849 struct iscsi_conn *conn = task->conn;
4850 struct beiscsi_conn *beiscsi_conn = conn->dd_data;
4851 struct beiscsi_hba *phba = beiscsi_conn->phba;
4852 struct iscsi_wrb *pwrb = NULL;
4853 unsigned int doorbell = 0;
4854
4855 pwrb = io_task->pwrb_handle->pwrb;
4856
4857 io_task->cmd_bhs->iscsi_hdr.exp_statsn = 0;
4858 io_task->bhs_len = sizeof(struct be_cmd_bhs);
4859
4860 if (writedir) {
4861 AMAP_SET_BITS(struct amap_iscsi_wrb_v2, type, pwrb,
4862 INI_WR_CMD);
4863 AMAP_SET_BITS(struct amap_iscsi_wrb_v2, dsp, pwrb, 1);
4864 } else {
4865 AMAP_SET_BITS(struct amap_iscsi_wrb_v2, type, pwrb,
4866 INI_RD_CMD);
4867 AMAP_SET_BITS(struct amap_iscsi_wrb_v2, dsp, pwrb, 0);
4868 }
4869
4870 io_task->wrb_type = AMAP_GET_BITS(struct amap_iscsi_wrb_v2,
4871 type, pwrb);
4872
4873 AMAP_SET_BITS(struct amap_iscsi_wrb_v2, lun, pwrb,
4874 cpu_to_be16(*(unsigned short *)
4875 &io_task->cmd_bhs->iscsi_hdr.lun));
4876 AMAP_SET_BITS(struct amap_iscsi_wrb_v2, r2t_exp_dtl, pwrb, xferlen);
4877 AMAP_SET_BITS(struct amap_iscsi_wrb_v2, wrb_idx, pwrb,
4878 io_task->pwrb_handle->wrb_index);
4879 AMAP_SET_BITS(struct amap_iscsi_wrb_v2, cmdsn_itt, pwrb,
4880 be32_to_cpu(task->cmdsn));
4881 AMAP_SET_BITS(struct amap_iscsi_wrb_v2, sgl_idx, pwrb,
4882 io_task->psgl_handle->sgl_index);
4883
4884 hwi_write_sgl_v2(pwrb, sg, num_sg, io_task);
4885 AMAP_SET_BITS(struct amap_iscsi_wrb_v2, ptr2nextwrb, pwrb,
4886 io_task->pwrb_handle->nxt_wrb_index);
4887
4888 be_dws_le_to_cpu(pwrb, sizeof(struct iscsi_wrb));
4889
4890 doorbell |= beiscsi_conn->beiscsi_conn_cid & DB_WRB_POST_CID_MASK;
4891 doorbell |= (io_task->pwrb_handle->wrb_index &
4892 DB_DEF_PDU_WRB_INDEX_MASK) <<
4893 DB_DEF_PDU_WRB_INDEX_SHIFT;
4894 doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT;
4895 iowrite32(doorbell, phba->db_va +
4896 beiscsi_conn->doorbell_offset);
4897 return 0;
4898 }
4899
4900 static int beiscsi_iotask(struct iscsi_task *task, struct scatterlist *sg,
4901 unsigned int num_sg, unsigned int xferlen,
4902 unsigned int writedir)
4903 {
4904
4905 struct beiscsi_io_task *io_task = task->dd_data;
4906 struct iscsi_conn *conn = task->conn;
4907 struct beiscsi_conn *beiscsi_conn = conn->dd_data;
4908 struct beiscsi_hba *phba = beiscsi_conn->phba;
4909 struct iscsi_wrb *pwrb = NULL;
4910 unsigned int doorbell = 0;
4911
4912 pwrb = io_task->pwrb_handle->pwrb;
4913 io_task->cmd_bhs->iscsi_hdr.exp_statsn = 0;
4914 io_task->bhs_len = sizeof(struct be_cmd_bhs);
4915
4916 if (writedir) {
4917 AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb,
4918 INI_WR_CMD);
4919 AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 1);
4920 } else {
4921 AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb,
4922 INI_RD_CMD);
4923 AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 0);
4924 }
4925
4926 io_task->wrb_type = AMAP_GET_BITS(struct amap_iscsi_wrb,
4927 type, pwrb);
4928
4929 AMAP_SET_BITS(struct amap_iscsi_wrb, lun, pwrb,
4930 cpu_to_be16(*(unsigned short *)
4931 &io_task->cmd_bhs->iscsi_hdr.lun));
4932 AMAP_SET_BITS(struct amap_iscsi_wrb, r2t_exp_dtl, pwrb, xferlen);
4933 AMAP_SET_BITS(struct amap_iscsi_wrb, wrb_idx, pwrb,
4934 io_task->pwrb_handle->wrb_index);
4935 AMAP_SET_BITS(struct amap_iscsi_wrb, cmdsn_itt, pwrb,
4936 be32_to_cpu(task->cmdsn));
4937 AMAP_SET_BITS(struct amap_iscsi_wrb, sgl_icd_idx, pwrb,
4938 io_task->psgl_handle->sgl_index);
4939
4940 hwi_write_sgl(pwrb, sg, num_sg, io_task);
4941
4942 AMAP_SET_BITS(struct amap_iscsi_wrb, ptr2nextwrb, pwrb,
4943 io_task->pwrb_handle->nxt_wrb_index);
4944 be_dws_le_to_cpu(pwrb, sizeof(struct iscsi_wrb));
4945
4946 doorbell |= beiscsi_conn->beiscsi_conn_cid & DB_WRB_POST_CID_MASK;
4947 doorbell |= (io_task->pwrb_handle->wrb_index &
4948 DB_DEF_PDU_WRB_INDEX_MASK) << DB_DEF_PDU_WRB_INDEX_SHIFT;
4949 doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT;
4950
4951 iowrite32(doorbell, phba->db_va +
4952 beiscsi_conn->doorbell_offset);
4953 return 0;
4954 }
4955
4956 static int beiscsi_mtask(struct iscsi_task *task)
4957 {
4958 struct beiscsi_io_task *io_task = task->dd_data;
4959 struct iscsi_conn *conn = task->conn;
4960 struct beiscsi_conn *beiscsi_conn = conn->dd_data;
4961 struct beiscsi_hba *phba = beiscsi_conn->phba;
4962 struct iscsi_wrb *pwrb = NULL;
4963 unsigned int doorbell = 0;
4964 unsigned int cid;
4965 unsigned int pwrb_typeoffset = 0;
4966
4967 cid = beiscsi_conn->beiscsi_conn_cid;
4968 pwrb = io_task->pwrb_handle->pwrb;
4969 memset(pwrb, 0, sizeof(*pwrb));
4970
4971 if (is_chip_be2_be3r(phba)) {
4972 AMAP_SET_BITS(struct amap_iscsi_wrb, cmdsn_itt, pwrb,
4973 be32_to_cpu(task->cmdsn));
4974 AMAP_SET_BITS(struct amap_iscsi_wrb, wrb_idx, pwrb,
4975 io_task->pwrb_handle->wrb_index);
4976 AMAP_SET_BITS(struct amap_iscsi_wrb, sgl_icd_idx, pwrb,
4977 io_task->psgl_handle->sgl_index);
4978 AMAP_SET_BITS(struct amap_iscsi_wrb, r2t_exp_dtl, pwrb,
4979 task->data_count);
4980 AMAP_SET_BITS(struct amap_iscsi_wrb, ptr2nextwrb, pwrb,
4981 io_task->pwrb_handle->nxt_wrb_index);
4982 pwrb_typeoffset = BE_WRB_TYPE_OFFSET;
4983 } else {
4984 AMAP_SET_BITS(struct amap_iscsi_wrb_v2, cmdsn_itt, pwrb,
4985 be32_to_cpu(task->cmdsn));
4986 AMAP_SET_BITS(struct amap_iscsi_wrb_v2, wrb_idx, pwrb,
4987 io_task->pwrb_handle->wrb_index);
4988 AMAP_SET_BITS(struct amap_iscsi_wrb_v2, sgl_idx, pwrb,
4989 io_task->psgl_handle->sgl_index);
4990 AMAP_SET_BITS(struct amap_iscsi_wrb_v2, r2t_exp_dtl, pwrb,
4991 task->data_count);
4992 AMAP_SET_BITS(struct amap_iscsi_wrb_v2, ptr2nextwrb, pwrb,
4993 io_task->pwrb_handle->nxt_wrb_index);
4994 pwrb_typeoffset = SKH_WRB_TYPE_OFFSET;
4995 }
4996
4997
4998 switch (task->hdr->opcode & ISCSI_OPCODE_MASK) {
4999 case ISCSI_OP_LOGIN:
5000 AMAP_SET_BITS(struct amap_iscsi_wrb, cmdsn_itt, pwrb, 1);
5001 ADAPTER_SET_WRB_TYPE(pwrb, TGT_DM_CMD, pwrb_typeoffset);
5002 hwi_write_buffer(pwrb, task);
5003 break;
5004 case ISCSI_OP_NOOP_OUT:
5005 if (task->hdr->ttt != ISCSI_RESERVED_TAG) {
5006 ADAPTER_SET_WRB_TYPE(pwrb, TGT_DM_CMD, pwrb_typeoffset);
5007 if (is_chip_be2_be3r(phba))
5008 AMAP_SET_BITS(struct amap_iscsi_wrb,
5009 dmsg, pwrb, 1);
5010 else
5011 AMAP_SET_BITS(struct amap_iscsi_wrb_v2,
5012 dmsg, pwrb, 1);
5013 } else {
5014 ADAPTER_SET_WRB_TYPE(pwrb, INI_RD_CMD, pwrb_typeoffset);
5015 if (is_chip_be2_be3r(phba))
5016 AMAP_SET_BITS(struct amap_iscsi_wrb,
5017 dmsg, pwrb, 0);
5018 else
5019 AMAP_SET_BITS(struct amap_iscsi_wrb_v2,
5020 dmsg, pwrb, 0);
5021 }
5022 hwi_write_buffer(pwrb, task);
5023 break;
5024 case ISCSI_OP_TEXT:
5025 ADAPTER_SET_WRB_TYPE(pwrb, TGT_DM_CMD, pwrb_typeoffset);
5026 hwi_write_buffer(pwrb, task);
5027 break;
5028 case ISCSI_OP_SCSI_TMFUNC:
5029 ADAPTER_SET_WRB_TYPE(pwrb, INI_TMF_CMD, pwrb_typeoffset);
5030 hwi_write_buffer(pwrb, task);
5031 break;
5032 case ISCSI_OP_LOGOUT:
5033 ADAPTER_SET_WRB_TYPE(pwrb, HWH_TYPE_LOGOUT, pwrb_typeoffset);
5034 hwi_write_buffer(pwrb, task);
5035 break;
5036
5037 default:
5038 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
5039 "BM_%d : opcode =%d Not supported\n",
5040 task->hdr->opcode & ISCSI_OPCODE_MASK);
5041
5042 return -EINVAL;
5043 }
5044
5045 /* Set the task type */
5046 io_task->wrb_type = (is_chip_be2_be3r(phba)) ?
5047 AMAP_GET_BITS(struct amap_iscsi_wrb, type, pwrb) :
5048 AMAP_GET_BITS(struct amap_iscsi_wrb_v2, type, pwrb);
5049
5050 doorbell |= cid & DB_WRB_POST_CID_MASK;
5051 doorbell |= (io_task->pwrb_handle->wrb_index &
5052 DB_DEF_PDU_WRB_INDEX_MASK) << DB_DEF_PDU_WRB_INDEX_SHIFT;
5053 doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT;
5054 iowrite32(doorbell, phba->db_va +
5055 beiscsi_conn->doorbell_offset);
5056 return 0;
5057 }
5058
5059 static int beiscsi_task_xmit(struct iscsi_task *task)
5060 {
5061 struct beiscsi_io_task *io_task = task->dd_data;
5062 struct scsi_cmnd *sc = task->sc;
5063 struct beiscsi_hba *phba = NULL;
5064 struct scatterlist *sg;
5065 int num_sg;
5066 unsigned int writedir = 0, xferlen = 0;
5067
5068 phba = ((struct beiscsi_conn *)task->conn->dd_data)->phba;
5069
5070 if (!sc)
5071 return beiscsi_mtask(task);
5072
5073 io_task->scsi_cmnd = sc;
5074 num_sg = scsi_dma_map(sc);
5075 if (num_sg < 0) {
5076 struct iscsi_conn *conn = task->conn;
5077 struct beiscsi_hba *phba = NULL;
5078
5079 phba = ((struct beiscsi_conn *)conn->dd_data)->phba;
5080 beiscsi_log(phba, KERN_ERR,
5081 BEISCSI_LOG_IO | BEISCSI_LOG_ISCSI,
5082 "BM_%d : scsi_dma_map Failed "
5083 "Driver_ITT : 0x%x ITT : 0x%x Xferlen : 0x%x\n",
5084 be32_to_cpu(io_task->cmd_bhs->iscsi_hdr.itt),
5085 io_task->libiscsi_itt, scsi_bufflen(sc));
5086
5087 return num_sg;
5088 }
5089 xferlen = scsi_bufflen(sc);
5090 sg = scsi_sglist(sc);
5091 if (sc->sc_data_direction == DMA_TO_DEVICE)
5092 writedir = 1;
5093 else
5094 writedir = 0;
5095
5096 return phba->iotask_fn(task, sg, num_sg, xferlen, writedir);
5097 }
5098
5099 /**
5100 * beiscsi_bsg_request - handle bsg request from ISCSI transport
5101 * @job: job to handle
5102 */
5103 static int beiscsi_bsg_request(struct bsg_job *job)
5104 {
5105 struct Scsi_Host *shost;
5106 struct beiscsi_hba *phba;
5107 struct iscsi_bsg_request *bsg_req = job->request;
5108 int rc = -EINVAL;
5109 unsigned int tag;
5110 struct be_dma_mem nonemb_cmd;
5111 struct be_cmd_resp_hdr *resp;
5112 struct iscsi_bsg_reply *bsg_reply = job->reply;
5113 unsigned short status, extd_status;
5114
5115 shost = iscsi_job_to_shost(job);
5116 phba = iscsi_host_priv(shost);
5117
5118 switch (bsg_req->msgcode) {
5119 case ISCSI_BSG_HST_VENDOR:
5120 nonemb_cmd.va = pci_alloc_consistent(phba->ctrl.pdev,
5121 job->request_payload.payload_len,
5122 &nonemb_cmd.dma);
5123 if (nonemb_cmd.va == NULL) {
5124 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
5125 "BM_%d : Failed to allocate memory for "
5126 "beiscsi_bsg_request\n");
5127 return -ENOMEM;
5128 }
5129 tag = mgmt_vendor_specific_fw_cmd(&phba->ctrl, phba, job,
5130 &nonemb_cmd);
5131 if (!tag) {
5132 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
5133 "BM_%d : MBX Tag Allocation Failed\n");
5134
5135 pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size,
5136 nonemb_cmd.va, nonemb_cmd.dma);
5137 return -EAGAIN;
5138 }
5139
5140 rc = wait_event_interruptible_timeout(
5141 phba->ctrl.mcc_wait[tag],
5142 phba->ctrl.mcc_numtag[tag],
5143 msecs_to_jiffies(
5144 BEISCSI_HOST_MBX_TIMEOUT));
5145 extd_status = (phba->ctrl.mcc_numtag[tag] & 0x0000FF00) >> 8;
5146 status = phba->ctrl.mcc_numtag[tag] & 0x000000FF;
5147 free_mcc_tag(&phba->ctrl, tag);
5148 resp = (struct be_cmd_resp_hdr *)nonemb_cmd.va;
5149 sg_copy_from_buffer(job->reply_payload.sg_list,
5150 job->reply_payload.sg_cnt,
5151 nonemb_cmd.va, (resp->response_length
5152 + sizeof(*resp)));
5153 bsg_reply->reply_payload_rcv_len = resp->response_length;
5154 bsg_reply->result = status;
5155 bsg_job_done(job, bsg_reply->result,
5156 bsg_reply->reply_payload_rcv_len);
5157 pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size,
5158 nonemb_cmd.va, nonemb_cmd.dma);
5159 if (status || extd_status) {
5160 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
5161 "BM_%d : MBX Cmd Failed"
5162 " status = %d extd_status = %d\n",
5163 status, extd_status);
5164
5165 return -EIO;
5166 } else {
5167 rc = 0;
5168 }
5169 break;
5170
5171 default:
5172 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
5173 "BM_%d : Unsupported bsg command: 0x%x\n",
5174 bsg_req->msgcode);
5175 break;
5176 }
5177
5178 return rc;
5179 }
5180
5181 void beiscsi_hba_attrs_init(struct beiscsi_hba *phba)
5182 {
5183 /* Set the logging parameter */
5184 beiscsi_log_enable_init(phba, beiscsi_log_enable);
5185 }
5186
5187 /*
5188 * beiscsi_quiesce()- Cleanup Driver resources
5189 * @phba: Instance Priv structure
5190 * @unload_state:i Clean or EEH unload state
5191 *
5192 * Free the OS and HW resources held by the driver
5193 **/
5194 static void beiscsi_quiesce(struct beiscsi_hba *phba,
5195 uint32_t unload_state)
5196 {
5197 struct hwi_controller *phwi_ctrlr;
5198 struct hwi_context_memory *phwi_context;
5199 struct be_eq_obj *pbe_eq;
5200 unsigned int i, msix_vec;
5201
5202 phwi_ctrlr = phba->phwi_ctrlr;
5203 phwi_context = phwi_ctrlr->phwi_ctxt;
5204 hwi_disable_intr(phba);
5205 if (phba->msix_enabled) {
5206 for (i = 0; i <= phba->num_cpus; i++) {
5207 msix_vec = phba->msix_entries[i].vector;
5208 synchronize_irq(msix_vec);
5209 free_irq(msix_vec, &phwi_context->be_eq[i]);
5210 kfree(phba->msi_name[i]);
5211 }
5212 } else
5213 if (phba->pcidev->irq) {
5214 synchronize_irq(phba->pcidev->irq);
5215 free_irq(phba->pcidev->irq, phba);
5216 }
5217 pci_disable_msix(phba->pcidev);
5218
5219 if (blk_iopoll_enabled)
5220 for (i = 0; i < phba->num_cpus; i++) {
5221 pbe_eq = &phwi_context->be_eq[i];
5222 blk_iopoll_disable(&pbe_eq->iopoll);
5223 }
5224
5225 if (unload_state == BEISCSI_CLEAN_UNLOAD) {
5226 destroy_workqueue(phba->wq);
5227 beiscsi_clean_port(phba);
5228 beiscsi_free_mem(phba);
5229
5230 beiscsi_unmap_pci_function(phba);
5231 pci_free_consistent(phba->pcidev,
5232 phba->ctrl.mbox_mem_alloced.size,
5233 phba->ctrl.mbox_mem_alloced.va,
5234 phba->ctrl.mbox_mem_alloced.dma);
5235 } else {
5236 hwi_purge_eq(phba);
5237 hwi_cleanup(phba);
5238 }
5239
5240 cancel_delayed_work_sync(&phba->beiscsi_hw_check_task);
5241 }
5242
5243 static void beiscsi_remove(struct pci_dev *pcidev)
5244 {
5245
5246 struct beiscsi_hba *phba = NULL;
5247
5248 phba = pci_get_drvdata(pcidev);
5249 if (!phba) {
5250 dev_err(&pcidev->dev, "beiscsi_remove called with no phba\n");
5251 return;
5252 }
5253
5254 beiscsi_destroy_def_ifaces(phba);
5255 beiscsi_quiesce(phba, BEISCSI_CLEAN_UNLOAD);
5256 iscsi_boot_destroy_kset(phba->boot_kset);
5257 iscsi_host_remove(phba->shost);
5258 pci_dev_put(phba->pcidev);
5259 iscsi_host_free(phba->shost);
5260 pci_disable_pcie_error_reporting(pcidev);
5261 pci_set_drvdata(pcidev, NULL);
5262 pci_disable_device(pcidev);
5263 }
5264
5265 static void beiscsi_shutdown(struct pci_dev *pcidev)
5266 {
5267
5268 struct beiscsi_hba *phba = NULL;
5269
5270 phba = (struct beiscsi_hba *)pci_get_drvdata(pcidev);
5271 if (!phba) {
5272 dev_err(&pcidev->dev, "beiscsi_shutdown called with no phba\n");
5273 return;
5274 }
5275
5276 beiscsi_quiesce(phba, BEISCSI_CLEAN_UNLOAD);
5277 pci_disable_device(pcidev);
5278 }
5279
5280 static void beiscsi_msix_enable(struct beiscsi_hba *phba)
5281 {
5282 int i, status;
5283
5284 for (i = 0; i <= phba->num_cpus; i++)
5285 phba->msix_entries[i].entry = i;
5286
5287 status = pci_enable_msix(phba->pcidev, phba->msix_entries,
5288 (phba->num_cpus + 1));
5289 if (!status)
5290 phba->msix_enabled = true;
5291
5292 return;
5293 }
5294
5295 /*
5296 * beiscsi_hw_health_check()- Check adapter health
5297 * @work: work item to check HW health
5298 *
5299 * Check if adapter in an unrecoverable state or not.
5300 **/
5301 static void
5302 beiscsi_hw_health_check(struct work_struct *work)
5303 {
5304 struct beiscsi_hba *phba =
5305 container_of(work, struct beiscsi_hba,
5306 beiscsi_hw_check_task.work);
5307
5308 beiscsi_ue_detect(phba);
5309
5310 schedule_delayed_work(&phba->beiscsi_hw_check_task,
5311 msecs_to_jiffies(1000));
5312 }
5313
5314
5315 static pci_ers_result_t beiscsi_eeh_err_detected(struct pci_dev *pdev,
5316 pci_channel_state_t state)
5317 {
5318 struct beiscsi_hba *phba = NULL;
5319
5320 phba = (struct beiscsi_hba *)pci_get_drvdata(pdev);
5321 phba->state |= BE_ADAPTER_PCI_ERR;
5322
5323 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
5324 "BM_%d : EEH error detected\n");
5325
5326 beiscsi_quiesce(phba, BEISCSI_EEH_UNLOAD);
5327
5328 if (state == pci_channel_io_perm_failure) {
5329 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
5330 "BM_%d : EEH : State PERM Failure");
5331 return PCI_ERS_RESULT_DISCONNECT;
5332 }
5333
5334 pci_disable_device(pdev);
5335
5336 /* The error could cause the FW to trigger a flash debug dump.
5337 * Resetting the card while flash dump is in progress
5338 * can cause it not to recover; wait for it to finish.
5339 * Wait only for first function as it is needed only once per
5340 * adapter.
5341 **/
5342 if (pdev->devfn == 0)
5343 ssleep(30);
5344
5345 return PCI_ERS_RESULT_NEED_RESET;
5346 }
5347
5348 static pci_ers_result_t beiscsi_eeh_reset(struct pci_dev *pdev)
5349 {
5350 struct beiscsi_hba *phba = NULL;
5351 int status = 0;
5352
5353 phba = (struct beiscsi_hba *)pci_get_drvdata(pdev);
5354
5355 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
5356 "BM_%d : EEH Reset\n");
5357
5358 status = pci_enable_device(pdev);
5359 if (status)
5360 return PCI_ERS_RESULT_DISCONNECT;
5361
5362 pci_set_master(pdev);
5363 pci_set_power_state(pdev, PCI_D0);
5364 pci_restore_state(pdev);
5365
5366 /* Wait for the CHIP Reset to complete */
5367 status = be_chk_reset_complete(phba);
5368 if (!status) {
5369 beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_INIT,
5370 "BM_%d : EEH Reset Completed\n");
5371 } else {
5372 beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_INIT,
5373 "BM_%d : EEH Reset Completion Failure\n");
5374 return PCI_ERS_RESULT_DISCONNECT;
5375 }
5376
5377 pci_cleanup_aer_uncorrect_error_status(pdev);
5378 return PCI_ERS_RESULT_RECOVERED;
5379 }
5380
5381 static void beiscsi_eeh_resume(struct pci_dev *pdev)
5382 {
5383 int ret = 0, i;
5384 struct be_eq_obj *pbe_eq;
5385 struct beiscsi_hba *phba = NULL;
5386 struct hwi_controller *phwi_ctrlr;
5387 struct hwi_context_memory *phwi_context;
5388
5389 phba = (struct beiscsi_hba *)pci_get_drvdata(pdev);
5390 pci_save_state(pdev);
5391
5392 if (enable_msix)
5393 find_num_cpus(phba);
5394 else
5395 phba->num_cpus = 1;
5396
5397 if (enable_msix) {
5398 beiscsi_msix_enable(phba);
5399 if (!phba->msix_enabled)
5400 phba->num_cpus = 1;
5401 }
5402
5403 ret = beiscsi_cmd_reset_function(phba);
5404 if (ret) {
5405 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
5406 "BM_%d : Reset Failed\n");
5407 goto ret_err;
5408 }
5409
5410 ret = be_chk_reset_complete(phba);
5411 if (ret) {
5412 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
5413 "BM_%d : Failed to get out of reset.\n");
5414 goto ret_err;
5415 }
5416
5417 beiscsi_get_params(phba);
5418 phba->shost->max_id = phba->params.cxns_per_ctrl;
5419 phba->shost->can_queue = phba->params.ios_per_ctrl;
5420 ret = hwi_init_controller(phba);
5421
5422 for (i = 0; i < MAX_MCC_CMD; i++) {
5423 init_waitqueue_head(&phba->ctrl.mcc_wait[i + 1]);
5424 phba->ctrl.mcc_tag[i] = i + 1;
5425 phba->ctrl.mcc_numtag[i + 1] = 0;
5426 phba->ctrl.mcc_tag_available++;
5427 }
5428
5429 phwi_ctrlr = phba->phwi_ctrlr;
5430 phwi_context = phwi_ctrlr->phwi_ctxt;
5431
5432 if (blk_iopoll_enabled) {
5433 for (i = 0; i < phba->num_cpus; i++) {
5434 pbe_eq = &phwi_context->be_eq[i];
5435 blk_iopoll_init(&pbe_eq->iopoll, be_iopoll_budget,
5436 be_iopoll);
5437 blk_iopoll_enable(&pbe_eq->iopoll);
5438 }
5439
5440 i = (phba->msix_enabled) ? i : 0;
5441 /* Work item for MCC handling */
5442 pbe_eq = &phwi_context->be_eq[i];
5443 INIT_WORK(&pbe_eq->work_cqs, beiscsi_process_all_cqs);
5444 } else {
5445 if (phba->msix_enabled) {
5446 for (i = 0; i <= phba->num_cpus; i++) {
5447 pbe_eq = &phwi_context->be_eq[i];
5448 INIT_WORK(&pbe_eq->work_cqs,
5449 beiscsi_process_all_cqs);
5450 }
5451 } else {
5452 pbe_eq = &phwi_context->be_eq[0];
5453 INIT_WORK(&pbe_eq->work_cqs,
5454 beiscsi_process_all_cqs);
5455 }
5456 }
5457
5458 ret = beiscsi_init_irqs(phba);
5459 if (ret < 0) {
5460 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
5461 "BM_%d : beiscsi_eeh_resume - "
5462 "Failed to beiscsi_init_irqs\n");
5463 goto ret_err;
5464 }
5465
5466 hwi_enable_intr(phba);
5467 phba->state &= ~BE_ADAPTER_PCI_ERR;
5468
5469 return;
5470 ret_err:
5471 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
5472 "BM_%d : AER EEH Resume Failed\n");
5473 }
5474
5475 static int beiscsi_dev_probe(struct pci_dev *pcidev,
5476 const struct pci_device_id *id)
5477 {
5478 struct beiscsi_hba *phba = NULL;
5479 struct hwi_controller *phwi_ctrlr;
5480 struct hwi_context_memory *phwi_context;
5481 struct be_eq_obj *pbe_eq;
5482 int ret = 0, i;
5483
5484 ret = beiscsi_enable_pci(pcidev);
5485 if (ret < 0) {
5486 dev_err(&pcidev->dev,
5487 "beiscsi_dev_probe - Failed to enable pci device\n");
5488 return ret;
5489 }
5490
5491 phba = beiscsi_hba_alloc(pcidev);
5492 if (!phba) {
5493 dev_err(&pcidev->dev,
5494 "beiscsi_dev_probe - Failed in beiscsi_hba_alloc\n");
5495 goto disable_pci;
5496 }
5497
5498 /* Enable EEH reporting */
5499 ret = pci_enable_pcie_error_reporting(pcidev);
5500 if (ret)
5501 beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_INIT,
5502 "BM_%d : PCIe Error Reporting "
5503 "Enabling Failed\n");
5504
5505 pci_save_state(pcidev);
5506
5507 /* Initialize Driver configuration Paramters */
5508 beiscsi_hba_attrs_init(phba);
5509
5510 phba->fw_timeout = false;
5511 phba->mac_addr_set = false;
5512
5513
5514 switch (pcidev->device) {
5515 case BE_DEVICE_ID1:
5516 case OC_DEVICE_ID1:
5517 case OC_DEVICE_ID2:
5518 phba->generation = BE_GEN2;
5519 phba->iotask_fn = beiscsi_iotask;
5520 break;
5521 case BE_DEVICE_ID2:
5522 case OC_DEVICE_ID3:
5523 phba->generation = BE_GEN3;
5524 phba->iotask_fn = beiscsi_iotask;
5525 break;
5526 case OC_SKH_ID1:
5527 phba->generation = BE_GEN4;
5528 phba->iotask_fn = beiscsi_iotask_v2;
5529 break;
5530 default:
5531 phba->generation = 0;
5532 }
5533
5534 ret = be_ctrl_init(phba, pcidev);
5535 if (ret) {
5536 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
5537 "BM_%d : beiscsi_dev_probe-"
5538 "Failed in be_ctrl_init\n");
5539 goto hba_free;
5540 }
5541
5542 ret = beiscsi_cmd_reset_function(phba);
5543 if (ret) {
5544 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
5545 "BM_%d : Reset Failed\n");
5546 goto hba_free;
5547 }
5548 ret = be_chk_reset_complete(phba);
5549 if (ret) {
5550 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
5551 "BM_%d : Failed to get out of reset.\n");
5552 goto hba_free;
5553 }
5554
5555 spin_lock_init(&phba->io_sgl_lock);
5556 spin_lock_init(&phba->mgmt_sgl_lock);
5557 spin_lock_init(&phba->isr_lock);
5558 spin_lock_init(&phba->async_pdu_lock);
5559 ret = mgmt_get_fw_config(&phba->ctrl, phba);
5560 if (ret != 0) {
5561 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
5562 "BM_%d : Error getting fw config\n");
5563 goto free_port;
5564 }
5565
5566 if (enable_msix)
5567 find_num_cpus(phba);
5568 else
5569 phba->num_cpus = 1;
5570
5571 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
5572 "BM_%d : num_cpus = %d\n",
5573 phba->num_cpus);
5574
5575 if (enable_msix) {
5576 beiscsi_msix_enable(phba);
5577 if (!phba->msix_enabled)
5578 phba->num_cpus = 1;
5579 }
5580
5581 phba->shost->max_id = phba->params.cxns_per_ctrl;
5582 beiscsi_get_params(phba);
5583 phba->shost->can_queue = phba->params.ios_per_ctrl;
5584 ret = beiscsi_init_port(phba);
5585 if (ret < 0) {
5586 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
5587 "BM_%d : beiscsi_dev_probe-"
5588 "Failed in beiscsi_init_port\n");
5589 goto free_port;
5590 }
5591
5592 for (i = 0; i < MAX_MCC_CMD; i++) {
5593 init_waitqueue_head(&phba->ctrl.mcc_wait[i + 1]);
5594 phba->ctrl.mcc_tag[i] = i + 1;
5595 phba->ctrl.mcc_numtag[i + 1] = 0;
5596 phba->ctrl.mcc_tag_available++;
5597 }
5598
5599 phba->ctrl.mcc_alloc_index = phba->ctrl.mcc_free_index = 0;
5600
5601 snprintf(phba->wq_name, sizeof(phba->wq_name), "beiscsi_%02x_wq",
5602 phba->shost->host_no);
5603 phba->wq = alloc_workqueue("%s", WQ_MEM_RECLAIM, 1, phba->wq_name);
5604 if (!phba->wq) {
5605 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
5606 "BM_%d : beiscsi_dev_probe-"
5607 "Failed to allocate work queue\n");
5608 goto free_twq;
5609 }
5610
5611 INIT_DELAYED_WORK(&phba->beiscsi_hw_check_task,
5612 beiscsi_hw_health_check);
5613
5614 phwi_ctrlr = phba->phwi_ctrlr;
5615 phwi_context = phwi_ctrlr->phwi_ctxt;
5616
5617 if (blk_iopoll_enabled) {
5618 for (i = 0; i < phba->num_cpus; i++) {
5619 pbe_eq = &phwi_context->be_eq[i];
5620 blk_iopoll_init(&pbe_eq->iopoll, be_iopoll_budget,
5621 be_iopoll);
5622 blk_iopoll_enable(&pbe_eq->iopoll);
5623 }
5624
5625 i = (phba->msix_enabled) ? i : 0;
5626 /* Work item for MCC handling */
5627 pbe_eq = &phwi_context->be_eq[i];
5628 INIT_WORK(&pbe_eq->work_cqs, beiscsi_process_all_cqs);
5629 } else {
5630 if (phba->msix_enabled) {
5631 for (i = 0; i <= phba->num_cpus; i++) {
5632 pbe_eq = &phwi_context->be_eq[i];
5633 INIT_WORK(&pbe_eq->work_cqs,
5634 beiscsi_process_all_cqs);
5635 }
5636 } else {
5637 pbe_eq = &phwi_context->be_eq[0];
5638 INIT_WORK(&pbe_eq->work_cqs,
5639 beiscsi_process_all_cqs);
5640 }
5641 }
5642
5643 ret = beiscsi_init_irqs(phba);
5644 if (ret < 0) {
5645 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
5646 "BM_%d : beiscsi_dev_probe-"
5647 "Failed to beiscsi_init_irqs\n");
5648 goto free_blkenbld;
5649 }
5650 hwi_enable_intr(phba);
5651
5652 if (beiscsi_setup_boot_info(phba))
5653 /*
5654 * log error but continue, because we may not be using
5655 * iscsi boot.
5656 */
5657 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
5658 "BM_%d : Could not set up "
5659 "iSCSI boot info.\n");
5660
5661 beiscsi_create_def_ifaces(phba);
5662 schedule_delayed_work(&phba->beiscsi_hw_check_task,
5663 msecs_to_jiffies(1000));
5664
5665 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
5666 "\n\n\n BM_%d : SUCCESS - DRIVER LOADED\n\n\n");
5667 return 0;
5668
5669 free_blkenbld:
5670 destroy_workqueue(phba->wq);
5671 if (blk_iopoll_enabled)
5672 for (i = 0; i < phba->num_cpus; i++) {
5673 pbe_eq = &phwi_context->be_eq[i];
5674 blk_iopoll_disable(&pbe_eq->iopoll);
5675 }
5676 free_twq:
5677 beiscsi_clean_port(phba);
5678 beiscsi_free_mem(phba);
5679 free_port:
5680 pci_free_consistent(phba->pcidev,
5681 phba->ctrl.mbox_mem_alloced.size,
5682 phba->ctrl.mbox_mem_alloced.va,
5683 phba->ctrl.mbox_mem_alloced.dma);
5684 beiscsi_unmap_pci_function(phba);
5685 hba_free:
5686 if (phba->msix_enabled)
5687 pci_disable_msix(phba->pcidev);
5688 iscsi_host_remove(phba->shost);
5689 pci_dev_put(phba->pcidev);
5690 iscsi_host_free(phba->shost);
5691 disable_pci:
5692 pci_disable_device(pcidev);
5693 return ret;
5694 }
5695
5696 static struct pci_error_handlers beiscsi_eeh_handlers = {
5697 .error_detected = beiscsi_eeh_err_detected,
5698 .slot_reset = beiscsi_eeh_reset,
5699 .resume = beiscsi_eeh_resume,
5700 };
5701
5702 struct iscsi_transport beiscsi_iscsi_transport = {
5703 .owner = THIS_MODULE,
5704 .name = DRV_NAME,
5705 .caps = CAP_RECOVERY_L0 | CAP_HDRDGST | CAP_TEXT_NEGO |
5706 CAP_MULTI_R2T | CAP_DATADGST | CAP_DATA_PATH_OFFLOAD,
5707 .create_session = beiscsi_session_create,
5708 .destroy_session = beiscsi_session_destroy,
5709 .create_conn = beiscsi_conn_create,
5710 .bind_conn = beiscsi_conn_bind,
5711 .destroy_conn = iscsi_conn_teardown,
5712 .attr_is_visible = be2iscsi_attr_is_visible,
5713 .set_iface_param = be2iscsi_iface_set_param,
5714 .get_iface_param = be2iscsi_iface_get_param,
5715 .set_param = beiscsi_set_param,
5716 .get_conn_param = iscsi_conn_get_param,
5717 .get_session_param = iscsi_session_get_param,
5718 .get_host_param = beiscsi_get_host_param,
5719 .start_conn = beiscsi_conn_start,
5720 .stop_conn = iscsi_conn_stop,
5721 .send_pdu = iscsi_conn_send_pdu,
5722 .xmit_task = beiscsi_task_xmit,
5723 .cleanup_task = beiscsi_cleanup_task,
5724 .alloc_pdu = beiscsi_alloc_pdu,
5725 .parse_pdu_itt = beiscsi_parse_pdu,
5726 .get_stats = beiscsi_conn_get_stats,
5727 .get_ep_param = beiscsi_ep_get_param,
5728 .ep_connect = beiscsi_ep_connect,
5729 .ep_poll = beiscsi_ep_poll,
5730 .ep_disconnect = beiscsi_ep_disconnect,
5731 .session_recovery_timedout = iscsi_session_recovery_timedout,
5732 .bsg_request = beiscsi_bsg_request,
5733 };
5734
5735 static struct pci_driver beiscsi_pci_driver = {
5736 .name = DRV_NAME,
5737 .probe = beiscsi_dev_probe,
5738 .remove = beiscsi_remove,
5739 .shutdown = beiscsi_shutdown,
5740 .id_table = beiscsi_pci_id_table,
5741 .err_handler = &beiscsi_eeh_handlers
5742 };
5743
5744
5745 static int __init beiscsi_module_init(void)
5746 {
5747 int ret;
5748
5749 beiscsi_scsi_transport =
5750 iscsi_register_transport(&beiscsi_iscsi_transport);
5751 if (!beiscsi_scsi_transport) {
5752 printk(KERN_ERR
5753 "beiscsi_module_init - Unable to register beiscsi transport.\n");
5754 return -ENOMEM;
5755 }
5756 printk(KERN_INFO "In beiscsi_module_init, tt=%p\n",
5757 &beiscsi_iscsi_transport);
5758
5759 ret = pci_register_driver(&beiscsi_pci_driver);
5760 if (ret) {
5761 printk(KERN_ERR
5762 "beiscsi_module_init - Unable to register beiscsi pci driver.\n");
5763 goto unregister_iscsi_transport;
5764 }
5765 return 0;
5766
5767 unregister_iscsi_transport:
5768 iscsi_unregister_transport(&beiscsi_iscsi_transport);
5769 return ret;
5770 }
5771
5772 static void __exit beiscsi_module_exit(void)
5773 {
5774 pci_unregister_driver(&beiscsi_pci_driver);
5775 iscsi_unregister_transport(&beiscsi_iscsi_transport);
5776 }
5777
5778 module_init(beiscsi_module_init);
5779 module_exit(beiscsi_module_exit);
Linux kernel - Deliverables
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