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[SCSI] libiscsi: export function iscsi_switch_str_param
[linux-2.6-block.git] / drivers / scsi / qla4xxx / ql4_os.c
CommitLineData
afaf5a2d
DS		 1/*
2 * QLogic iSCSI HBA Driver
c68cdbf0 3 * Copyright (c) 2003-2012 QLogic Corporation
afaf5a2d
DS		 4 *
5 * See LICENSE.qla4xxx for copyright and licensing details.
6 */
7#include <linux/moduleparam.h>
5a0e3ad6 8#include <linux/slab.h>
2a991c21
MR		 9#include <linux/blkdev.h>
10#include <linux/iscsi_boot_sysfs.h>
13483730 11#include <linux/inet.h>
afaf5a2d
DS		 12
13#include <scsi/scsi_tcq.h>
14#include <scsi/scsicam.h>
15
16#include "ql4_def.h"
bee4fe8e
DS		 17#include "ql4_version.h"
18#include "ql4_glbl.h"
19#include "ql4_dbg.h"
20#include "ql4_inline.h"
6e7b4292 21#include "ql4_83xx.h"
afaf5a2d
DS		 22
23/*
24 * Driver version
25 */
47975477 26static char qla4xxx_version_str[40];
afaf5a2d
DS		 27
28/*
29 * SRB allocation cache
30 */
e18b890b 31static struct kmem_cache *srb_cachep;
afaf5a2d
DS		 32
33/*
34 * Module parameter information and variables
35 */
a7380a65 36static int ql4xdisablesysfsboot = 1;
13483730
MC		 37module_param(ql4xdisablesysfsboot, int, S_IRUGO | S_IWUSR);
38MODULE_PARM_DESC(ql4xdisablesysfsboot,
a4e8a715
KH		 39 " Set to disable exporting boot targets to sysfs.\n"
40 "\t\t 0 - Export boot targets\n"
41 "\t\t 1 - Do not export boot targets (Default)");
13483730 42
3573bfb2 43int ql4xdontresethba;
f4f5df23 44module_param(ql4xdontresethba, int, S_IRUGO | S_IWUSR);
afaf5a2d 45MODULE_PARM_DESC(ql4xdontresethba,
a4e8a715
KH		 46 " Don't reset the HBA for driver recovery.\n"
47 "\t\t 0 - It will reset HBA (Default)\n"
48 "\t\t 1 - It will NOT reset HBA");
afaf5a2d 49
a4e8a715 50int ql4xextended_error_logging;
f4f5df23 51module_param(ql4xextended_error_logging, int, S_IRUGO | S_IWUSR);
11010fec 52MODULE_PARM_DESC(ql4xextended_error_logging,
a4e8a715
KH		 53 " Option to enable extended error logging.\n"
54 "\t\t 0 - no logging (Default)\n"
55 "\t\t 2 - debug logging");
afaf5a2d 56
f4f5df23
VC		 57int ql4xenablemsix = 1;
58module_param(ql4xenablemsix, int, S_IRUGO|S_IWUSR);
59MODULE_PARM_DESC(ql4xenablemsix,
a4e8a715
KH		 60 " Set to enable MSI or MSI-X interrupt mechanism.\n"
61 "\t\t 0 = enable INTx interrupt mechanism.\n"
62 "\t\t 1 = enable MSI-X interrupt mechanism (Default).\n"
63 "\t\t 2 = enable MSI interrupt mechanism.");
477ffb9d 64
d510d965 65#define QL4_DEF_QDEPTH 32
8bb4033d
VC		 66static int ql4xmaxqdepth = QL4_DEF_QDEPTH;
67module_param(ql4xmaxqdepth, int, S_IRUGO | S_IWUSR);
68MODULE_PARM_DESC(ql4xmaxqdepth,
a4e8a715
KH		 69 " Maximum queue depth to report for target devices.\n"
70 "\t\t Default: 32.");
d510d965 71
f7b4aa63
TP		 72static int ql4xqfulltracking = 1;
73module_param(ql4xqfulltracking, int, S_IRUGO | S_IWUSR);
74MODULE_PARM_DESC(ql4xqfulltracking,
75 " Enable or disable dynamic tracking and adjustment of\n"
76 "\t\t scsi device queue depth.\n"
77 "\t\t 0 - Disable.\n"
78 "\t\t 1 - Enable. (Default)");
79
3038727c
VC		 80static int ql4xsess_recovery_tmo = QL4_SESS_RECOVERY_TMO;
81module_param(ql4xsess_recovery_tmo, int, S_IRUGO);
82MODULE_PARM_DESC(ql4xsess_recovery_tmo,
3573bfb2 83 " Target Session Recovery Timeout.\n"
a4e8a715 84 "\t\t Default: 120 sec.");
3038727c 85
068237c8
TP		 86int ql4xmdcapmask = 0x1F;
87module_param(ql4xmdcapmask, int, S_IRUGO);
88MODULE_PARM_DESC(ql4xmdcapmask,
89 " Set the Minidump driver capture mask level.\n"
90 "\t\t Default is 0x1F.\n"
91 "\t\t Can be set to 0x3, 0x7, 0xF, 0x1F, 0x3F, 0x7F");
92
93int ql4xenablemd = 1;
94module_param(ql4xenablemd, int, S_IRUGO | S_IWUSR);
95MODULE_PARM_DESC(ql4xenablemd,
96 " Set to enable minidump.\n"
97 "\t\t 0 - disable minidump\n"
98 "\t\t 1 - enable minidump (Default)");
99
b3a271a9 100static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha);
afaf5a2d
DS		 101/*
102 * SCSI host template entry points
103 */
47975477 104static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha);
afaf5a2d
DS		 105
106/*
107 * iSCSI template entry points
108 */
fca9f04d
MC		 109static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess,
110 enum iscsi_param param, char *buf);
afaf5a2d
DS		 111static int qla4xxx_conn_get_param(struct iscsi_cls_conn *conn,
112 enum iscsi_param param, char *buf);
aa1e93a2
MC		 113static int qla4xxx_host_get_param(struct Scsi_Host *shost,
114 enum iscsi_host_param param, char *buf);
00c31889
MC		 115static int qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data,
116 uint32_t len);
ed1086e0
VC		 117static int qla4xxx_get_iface_param(struct iscsi_iface *iface,
118 enum iscsi_param_type param_type,
119 int param, char *buf);
5c656af7 120static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc);
b3a271a9
MR		 121static struct iscsi_endpoint *qla4xxx_ep_connect(struct Scsi_Host *shost,
122 struct sockaddr *dst_addr,
123 int non_blocking);
124static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms);
125static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep);
126static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep,
127 enum iscsi_param param, char *buf);
128static int qla4xxx_conn_start(struct iscsi_cls_conn *conn);
129static struct iscsi_cls_conn *
130qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx);
131static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session,
132 struct iscsi_cls_conn *cls_conn,
133 uint64_t transport_fd, int is_leading);
134static void qla4xxx_conn_destroy(struct iscsi_cls_conn *conn);
135static struct iscsi_cls_session *
136qla4xxx_session_create(struct iscsi_endpoint *ep, uint16_t cmds_max,
137 uint16_t qdepth, uint32_t initial_cmdsn);
138static void qla4xxx_session_destroy(struct iscsi_cls_session *sess);
139static void qla4xxx_task_work(struct work_struct *wdata);
140static int qla4xxx_alloc_pdu(struct iscsi_task *, uint8_t);
141static int qla4xxx_task_xmit(struct iscsi_task *);
142static void qla4xxx_task_cleanup(struct iscsi_task *);
143static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session);
144static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn,
145 struct iscsi_stats *stats);
c0b9d3f7
VC		 146static int qla4xxx_send_ping(struct Scsi_Host *shost, uint32_t iface_num,
147 uint32_t iface_type, uint32_t payload_size,
148 uint32_t pid, struct sockaddr *dst_addr);
376738af
NJ		 149static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx,
150 uint32_t *num_entries, char *buf);
151static int qla4xxx_delete_chap(struct Scsi_Host *shost, uint16_t chap_tbl_idx);
c0b9d3f7 152
afaf5a2d
DS		 153/*
154 * SCSI host template entry points
155 */
f281233d 156static int qla4xxx_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *cmd);
09a0f719 157static int qla4xxx_eh_abort(struct scsi_cmnd *cmd);
afaf5a2d 158static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd);
ce545039 159static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd);
afaf5a2d
DS		 160static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd);
161static int qla4xxx_slave_alloc(struct scsi_device *device);
162static int qla4xxx_slave_configure(struct scsi_device *device);
163static void qla4xxx_slave_destroy(struct scsi_device *sdev);
5e9bcec7 164static umode_t qla4_attr_is_visible(int param_type, int param);
95d31262 165static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type);
f7b4aa63
TP		 166static int qla4xxx_change_queue_depth(struct scsi_device *sdev, int qdepth,
167 int reason);
afaf5a2d 168
f4f5df23
VC		 169static struct qla4_8xxx_legacy_intr_set legacy_intr[] =
170 QLA82XX_LEGACY_INTR_CONFIG;
171
afaf5a2d
DS		 172static struct scsi_host_template qla4xxx_driver_template = {
173 .module = THIS_MODULE,
174 .name = DRIVER_NAME,
175 .proc_name = DRIVER_NAME,
176 .queuecommand = qla4xxx_queuecommand,
177
09a0f719 178 .eh_abort_handler = qla4xxx_eh_abort,
afaf5a2d 179 .eh_device_reset_handler = qla4xxx_eh_device_reset,
ce545039 180 .eh_target_reset_handler = qla4xxx_eh_target_reset,
afaf5a2d 181 .eh_host_reset_handler = qla4xxx_eh_host_reset,
5c656af7 182 .eh_timed_out = qla4xxx_eh_cmd_timed_out,
afaf5a2d
DS		 183
184 .slave_configure = qla4xxx_slave_configure,
185 .slave_alloc = qla4xxx_slave_alloc,
186 .slave_destroy = qla4xxx_slave_destroy,
f7b4aa63 187 .change_queue_depth = qla4xxx_change_queue_depth,
afaf5a2d
DS		 188
189 .this_id = -1,
190 .cmd_per_lun = 3,
191 .use_clustering = ENABLE_CLUSTERING,
192 .sg_tablesize = SG_ALL,
193
194 .max_sectors = 0xFFFF,
7ad633c0 195 .shost_attrs = qla4xxx_host_attrs,
95d31262 196 .host_reset = qla4xxx_host_reset,
a355943c 197 .vendor_id = SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC,
afaf5a2d
DS		 198};
199
200static struct iscsi_transport qla4xxx_iscsi_transport = {
201 .owner = THIS_MODULE,
202 .name = DRIVER_NAME,
b3a271a9
MR		 203 .caps = CAP_TEXT_NEGO |
204 CAP_DATA_PATH_OFFLOAD | CAP_HDRDGST |
205 CAP_DATADGST | CAP_LOGIN_OFFLOAD |
206 CAP_MULTI_R2T,
5e9bcec7 207 .attr_is_visible = qla4_attr_is_visible,
b3a271a9
MR		 208 .create_session = qla4xxx_session_create,
209 .destroy_session = qla4xxx_session_destroy,
210 .start_conn = qla4xxx_conn_start,
211 .create_conn = qla4xxx_conn_create,
212 .bind_conn = qla4xxx_conn_bind,
213 .stop_conn = iscsi_conn_stop,
214 .destroy_conn = qla4xxx_conn_destroy,
215 .set_param = iscsi_set_param,
afaf5a2d 216 .get_conn_param = qla4xxx_conn_get_param,
fca9f04d 217 .get_session_param = qla4xxx_session_get_param,
b3a271a9
MR		 218 .get_ep_param = qla4xxx_get_ep_param,
219 .ep_connect = qla4xxx_ep_connect,
220 .ep_poll = qla4xxx_ep_poll,
221 .ep_disconnect = qla4xxx_ep_disconnect,
222 .get_stats = qla4xxx_conn_get_stats,
223 .send_pdu = iscsi_conn_send_pdu,
224 .xmit_task = qla4xxx_task_xmit,
225 .cleanup_task = qla4xxx_task_cleanup,
226 .alloc_pdu = qla4xxx_alloc_pdu,
227
aa1e93a2 228 .get_host_param = qla4xxx_host_get_param,
d00efe3f 229 .set_iface_param = qla4xxx_iface_set_param,
ed1086e0 230 .get_iface_param = qla4xxx_get_iface_param,
a355943c 231 .bsg_request = qla4xxx_bsg_request,
c0b9d3f7 232 .send_ping = qla4xxx_send_ping,
376738af
NJ		 233 .get_chap = qla4xxx_get_chap_list,
234 .delete_chap = qla4xxx_delete_chap,
afaf5a2d
DS		 235};
236
237static struct scsi_transport_template *qla4xxx_scsi_transport;
238
c0b9d3f7
VC		 239static int qla4xxx_send_ping(struct Scsi_Host *shost, uint32_t iface_num,
240 uint32_t iface_type, uint32_t payload_size,
241 uint32_t pid, struct sockaddr *dst_addr)
242{
243 struct scsi_qla_host *ha = to_qla_host(shost);
244 struct sockaddr_in *addr;
245 struct sockaddr_in6 *addr6;
246 uint32_t options = 0;
247 uint8_t ipaddr[IPv6_ADDR_LEN];
248 int rval;
249
250 memset(ipaddr, 0, IPv6_ADDR_LEN);
251 /* IPv4 to IPv4 */
252 if ((iface_type == ISCSI_IFACE_TYPE_IPV4) &&
253 (dst_addr->sa_family == AF_INET)) {
254 addr = (struct sockaddr_in *)dst_addr;
255 memcpy(ipaddr, &addr->sin_addr.s_addr, IP_ADDR_LEN);
256 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv4 Ping src: %pI4 "
257 "dest: %pI4\n", __func__,
258 &ha->ip_config.ip_address, ipaddr));
259 rval = qla4xxx_ping_iocb(ha, options, payload_size, pid,
260 ipaddr);
261 if (rval)
262 rval = -EINVAL;
263 } else if ((iface_type == ISCSI_IFACE_TYPE_IPV6) &&
264 (dst_addr->sa_family == AF_INET6)) {
265 /* IPv6 to IPv6 */
266 addr6 = (struct sockaddr_in6 *)dst_addr;
267 memcpy(ipaddr, &addr6->sin6_addr.in6_u.u6_addr8, IPv6_ADDR_LEN);
268
269 options |= PING_IPV6_PROTOCOL_ENABLE;
270
271 /* Ping using LinkLocal address */
272 if ((iface_num == 0) || (iface_num == 1)) {
273 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: LinkLocal Ping "
274 "src: %pI6 dest: %pI6\n", __func__,
275 &ha->ip_config.ipv6_link_local_addr,
276 ipaddr));
277 options |= PING_IPV6_LINKLOCAL_ADDR;
278 rval = qla4xxx_ping_iocb(ha, options, payload_size,
279 pid, ipaddr);
280 } else {
281 ql4_printk(KERN_WARNING, ha, "%s: iface num = %d "
282 "not supported\n", __func__, iface_num);
283 rval = -ENOSYS;
284 goto exit_send_ping;
285 }
286
287 /*
288 * If ping using LinkLocal address fails, try ping using
289 * IPv6 address
290 */
291 if (rval != QLA_SUCCESS) {
292 options &= ~PING_IPV6_LINKLOCAL_ADDR;
293 if (iface_num == 0) {
294 options |= PING_IPV6_ADDR0;
295 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv6 "
296 "Ping src: %pI6 "
297 "dest: %pI6\n", __func__,
298 &ha->ip_config.ipv6_addr0,
299 ipaddr));
300 } else if (iface_num == 1) {
301 options |= PING_IPV6_ADDR1;
302 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv6 "
303 "Ping src: %pI6 "
304 "dest: %pI6\n", __func__,
305 &ha->ip_config.ipv6_addr1,
306 ipaddr));
307 }
308 rval = qla4xxx_ping_iocb(ha, options, payload_size,
309 pid, ipaddr);
310 if (rval)
311 rval = -EINVAL;
312 }
313 } else
314 rval = -ENOSYS;
315exit_send_ping:
316 return rval;
317}
318
5e9bcec7 319static umode_t qla4_attr_is_visible(int param_type, int param)
3128c6c7
MC		 320{
321 switch (param_type) {
f27fb2ef
MC		 322 case ISCSI_HOST_PARAM:
323 switch (param) {
324 case ISCSI_HOST_PARAM_HWADDRESS:
325 case ISCSI_HOST_PARAM_IPADDRESS:
326 case ISCSI_HOST_PARAM_INITIATOR_NAME:
3254dbe9
VC		 327 case ISCSI_HOST_PARAM_PORT_STATE:
328 case ISCSI_HOST_PARAM_PORT_SPEED:
f27fb2ef
MC		 329 return S_IRUGO;
330 default:
331 return 0;
332 }
3128c6c7
MC		 333 case ISCSI_PARAM:
334 switch (param) {
590134fa
MC		 335 case ISCSI_PARAM_PERSISTENT_ADDRESS:
336 case ISCSI_PARAM_PERSISTENT_PORT:
3128c6c7
MC		 337 case ISCSI_PARAM_CONN_ADDRESS:
338 case ISCSI_PARAM_CONN_PORT:
1d063c17
MC		 339 case ISCSI_PARAM_TARGET_NAME:
340 case ISCSI_PARAM_TPGT:
341 case ISCSI_PARAM_TARGET_ALIAS:
b3a271a9
MR		 342 case ISCSI_PARAM_MAX_BURST:
343 case ISCSI_PARAM_MAX_R2T:
344 case ISCSI_PARAM_FIRST_BURST:
345 case ISCSI_PARAM_MAX_RECV_DLENGTH:
346 case ISCSI_PARAM_MAX_XMIT_DLENGTH:
de37920b 347 case ISCSI_PARAM_IFACE_NAME:
fca9f04d
MC		 348 case ISCSI_PARAM_CHAP_OUT_IDX:
349 case ISCSI_PARAM_CHAP_IN_IDX:
350 case ISCSI_PARAM_USERNAME:
351 case ISCSI_PARAM_PASSWORD:
352 case ISCSI_PARAM_USERNAME_IN:
353 case ISCSI_PARAM_PASSWORD_IN:
3128c6c7
MC		 354 return S_IRUGO;
355 default:
356 return 0;
357 }
b78dbba0
MC		 358 case ISCSI_NET_PARAM:
359 switch (param) {
360 case ISCSI_NET_PARAM_IPV4_ADDR:
361 case ISCSI_NET_PARAM_IPV4_SUBNET:
362 case ISCSI_NET_PARAM_IPV4_GW:
363 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
364 case ISCSI_NET_PARAM_IFACE_ENABLE:
365 case ISCSI_NET_PARAM_IPV6_LINKLOCAL:
366 case ISCSI_NET_PARAM_IPV6_ADDR:
367 case ISCSI_NET_PARAM_IPV6_ROUTER:
368 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG:
369 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG:
6ac73e8c
VC		 370 case ISCSI_NET_PARAM_VLAN_ID:
371 case ISCSI_NET_PARAM_VLAN_PRIORITY:
372 case ISCSI_NET_PARAM_VLAN_ENABLED:
943c157b 373 case ISCSI_NET_PARAM_MTU:
2ada7fc5 374 case ISCSI_NET_PARAM_PORT:
b78dbba0
MC		 375 return S_IRUGO;
376 default:
377 return 0;
378 }
3128c6c7
MC		 379 }
380
381 return 0;
382}
383
376738af
NJ		 384static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx,
385 uint32_t *num_entries, char *buf)
386{
387 struct scsi_qla_host *ha = to_qla_host(shost);
388 struct ql4_chap_table *chap_table;
389 struct iscsi_chap_rec *chap_rec;
390 int max_chap_entries = 0;
391 int valid_chap_entries = 0;
392 int ret = 0, i;
393
d11b0ca3 394 if (is_qla80XX(ha))
376738af
NJ		 395 max_chap_entries = (ha->hw.flt_chap_size / 2) /
396 sizeof(struct ql4_chap_table);
397 else
398 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
399
400 ql4_printk(KERN_INFO, ha, "%s: num_entries = %d, CHAP idx = %d\n",
401 __func__, *num_entries, chap_tbl_idx);
402
403 if (!buf) {
404 ret = -ENOMEM;
405 goto exit_get_chap_list;
406 }
407
408 chap_rec = (struct iscsi_chap_rec *) buf;
409 mutex_lock(&ha->chap_sem);
410 for (i = chap_tbl_idx; i < max_chap_entries; i++) {
411 chap_table = (struct ql4_chap_table *)ha->chap_list + i;
412 if (chap_table->cookie !=
413 __constant_cpu_to_le16(CHAP_VALID_COOKIE))
414 continue;
415
416 chap_rec->chap_tbl_idx = i;
417 strncpy(chap_rec->username, chap_table->name,
418 ISCSI_CHAP_AUTH_NAME_MAX_LEN);
419 strncpy(chap_rec->password, chap_table->secret,
420 QL4_CHAP_MAX_SECRET_LEN);
421 chap_rec->password_length = chap_table->secret_len;
422
423 if (chap_table->flags & BIT_7) /* local */
424 chap_rec->chap_type = CHAP_TYPE_OUT;
425
426 if (chap_table->flags & BIT_6) /* peer */
427 chap_rec->chap_type = CHAP_TYPE_IN;
428
429 chap_rec++;
430
431 valid_chap_entries++;
432 if (valid_chap_entries == *num_entries)
433 break;
434 else
435 continue;
436 }
437 mutex_unlock(&ha->chap_sem);
438
439exit_get_chap_list:
440 ql4_printk(KERN_INFO, ha, "%s: Valid CHAP Entries = %d\n",
441 __func__, valid_chap_entries);
442 *num_entries = valid_chap_entries;
443 return ret;
444}
445
446static int __qla4xxx_is_chap_active(struct device *dev, void *data)
447{
448 int ret = 0;
449 uint16_t *chap_tbl_idx = (uint16_t *) data;
450 struct iscsi_cls_session *cls_session;
451 struct iscsi_session *sess;
452 struct ddb_entry *ddb_entry;
453
454 if (!iscsi_is_session_dev(dev))
455 goto exit_is_chap_active;
456
457 cls_session = iscsi_dev_to_session(dev);
458 sess = cls_session->dd_data;
459 ddb_entry = sess->dd_data;
460
461 if (iscsi_session_chkready(cls_session))
462 goto exit_is_chap_active;
463
464 if (ddb_entry->chap_tbl_idx == *chap_tbl_idx)
465 ret = 1;
466
467exit_is_chap_active:
468 return ret;
469}
470
471static int qla4xxx_is_chap_active(struct Scsi_Host *shost,
472 uint16_t chap_tbl_idx)
473{
474 int ret = 0;
475
476 ret = device_for_each_child(&shost->shost_gendev, &chap_tbl_idx,
477 __qla4xxx_is_chap_active);
478
479 return ret;
480}
481
482static int qla4xxx_delete_chap(struct Scsi_Host *shost, uint16_t chap_tbl_idx)
483{
484 struct scsi_qla_host *ha = to_qla_host(shost);
485 struct ql4_chap_table *chap_table;
486 dma_addr_t chap_dma;
487 int max_chap_entries = 0;
488 uint32_t offset = 0;
489 uint32_t chap_size;
490 int ret = 0;
491
492 chap_table = dma_pool_alloc(ha->chap_dma_pool, GFP_KERNEL, &chap_dma);
493 if (chap_table == NULL)
494 return -ENOMEM;
495
496 memset(chap_table, 0, sizeof(struct ql4_chap_table));
497
d11b0ca3 498 if (is_qla80XX(ha))
376738af
NJ		 499 max_chap_entries = (ha->hw.flt_chap_size / 2) /
500 sizeof(struct ql4_chap_table);
501 else
502 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
503
504 if (chap_tbl_idx > max_chap_entries) {
505 ret = -EINVAL;
506 goto exit_delete_chap;
507 }
508
509 /* Check if chap index is in use.
510 * If chap is in use don't delet chap entry */
511 ret = qla4xxx_is_chap_active(shost, chap_tbl_idx);
512 if (ret) {
513 ql4_printk(KERN_INFO, ha, "CHAP entry %d is in use, cannot "
514 "delete from flash\n", chap_tbl_idx);
515 ret = -EBUSY;
516 goto exit_delete_chap;
517 }
518
519 chap_size = sizeof(struct ql4_chap_table);
520 if (is_qla40XX(ha))
521 offset = FLASH_CHAP_OFFSET | (chap_tbl_idx * chap_size);
522 else {
523 offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2);
524 /* flt_chap_size is CHAP table size for both ports
525 * so divide it by 2 to calculate the offset for second port
526 */
527 if (ha->port_num == 1)
528 offset += (ha->hw.flt_chap_size / 2);
529 offset += (chap_tbl_idx * chap_size);
530 }
531
532 ret = qla4xxx_get_flash(ha, chap_dma, offset, chap_size);
533 if (ret != QLA_SUCCESS) {
534 ret = -EINVAL;
535 goto exit_delete_chap;
536 }
537
538 DEBUG2(ql4_printk(KERN_INFO, ha, "Chap Cookie: x%x\n",
539 __le16_to_cpu(chap_table->cookie)));
540
541 if (__le16_to_cpu(chap_table->cookie) != CHAP_VALID_COOKIE) {
542 ql4_printk(KERN_ERR, ha, "No valid chap entry found\n");
543 goto exit_delete_chap;
544 }
545
546 chap_table->cookie = __constant_cpu_to_le16(0xFFFF);
547
548 offset = FLASH_CHAP_OFFSET |
549 (chap_tbl_idx * sizeof(struct ql4_chap_table));
550 ret = qla4xxx_set_flash(ha, chap_dma, offset, chap_size,
551 FLASH_OPT_RMW_COMMIT);
552 if (ret == QLA_SUCCESS && ha->chap_list) {
553 mutex_lock(&ha->chap_sem);
554 /* Update ha chap_list cache */
555 memcpy((struct ql4_chap_table *)ha->chap_list + chap_tbl_idx,
556 chap_table, sizeof(struct ql4_chap_table));
557 mutex_unlock(&ha->chap_sem);
558 }
559 if (ret != QLA_SUCCESS)
560 ret = -EINVAL;
561
562exit_delete_chap:
563 dma_pool_free(ha->chap_dma_pool, chap_table, chap_dma);
564 return ret;
565}
566
ed1086e0
VC		 567static int qla4xxx_get_iface_param(struct iscsi_iface *iface,
568 enum iscsi_param_type param_type,
569 int param, char *buf)
570{
571 struct Scsi_Host *shost = iscsi_iface_to_shost(iface);
572 struct scsi_qla_host *ha = to_qla_host(shost);
573 int len = -ENOSYS;
574
575 if (param_type != ISCSI_NET_PARAM)
576 return -ENOSYS;
577
578 switch (param) {
579 case ISCSI_NET_PARAM_IPV4_ADDR:
580 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address);
581 break;
582 case ISCSI_NET_PARAM_IPV4_SUBNET:
583 len = sprintf(buf, "%pI4\n", &ha->ip_config.subnet_mask);
584 break;
585 case ISCSI_NET_PARAM_IPV4_GW:
586 len = sprintf(buf, "%pI4\n", &ha->ip_config.gateway);
587 break;
588 case ISCSI_NET_PARAM_IFACE_ENABLE:
589 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
590 len = sprintf(buf, "%s\n",
591 (ha->ip_config.ipv4_options &
592 IPOPT_IPV4_PROTOCOL_ENABLE) ?
593 "enabled" : "disabled");
594 else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6)
595 len = sprintf(buf, "%s\n",
596 (ha->ip_config.ipv6_options &
597 IPV6_OPT_IPV6_PROTOCOL_ENABLE) ?
598 "enabled" : "disabled");
599 break;
600 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
601 len = sprintf(buf, "%s\n",
602 (ha->ip_config.tcp_options & TCPOPT_DHCP_ENABLE) ?
603 "dhcp" : "static");
604 break;
605 case ISCSI_NET_PARAM_IPV6_ADDR:
606 if (iface->iface_num == 0)
607 len = sprintf(buf, "%pI6\n", &ha->ip_config.ipv6_addr0);
608 if (iface->iface_num == 1)
609 len = sprintf(buf, "%pI6\n", &ha->ip_config.ipv6_addr1);
610 break;
611 case ISCSI_NET_PARAM_IPV6_LINKLOCAL:
612 len = sprintf(buf, "%pI6\n",
613 &ha->ip_config.ipv6_link_local_addr);
614 break;
615 case ISCSI_NET_PARAM_IPV6_ROUTER:
616 len = sprintf(buf, "%pI6\n",
617 &ha->ip_config.ipv6_default_router_addr);
618 break;
619 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG:
620 len = sprintf(buf, "%s\n",
621 (ha->ip_config.ipv6_addl_options &
622 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE) ?
623 "nd" : "static");
624 break;
625 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG:
626 len = sprintf(buf, "%s\n",
627 (ha->ip_config.ipv6_addl_options &
628 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR) ?
629 "auto" : "static");
630 break;
6ac73e8c
VC		 631 case ISCSI_NET_PARAM_VLAN_ID:
632 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
633 len = sprintf(buf, "%d\n",
634 (ha->ip_config.ipv4_vlan_tag &
635 ISCSI_MAX_VLAN_ID));
636 else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6)
637 len = sprintf(buf, "%d\n",
638 (ha->ip_config.ipv6_vlan_tag &
639 ISCSI_MAX_VLAN_ID));
640 break;
641 case ISCSI_NET_PARAM_VLAN_PRIORITY:
642 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
643 len = sprintf(buf, "%d\n",
644 ((ha->ip_config.ipv4_vlan_tag >> 13) &
645 ISCSI_MAX_VLAN_PRIORITY));
646 else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6)
647 len = sprintf(buf, "%d\n",
648 ((ha->ip_config.ipv6_vlan_tag >> 13) &
649 ISCSI_MAX_VLAN_PRIORITY));
650 break;
651 case ISCSI_NET_PARAM_VLAN_ENABLED:
652 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
653 len = sprintf(buf, "%s\n",
654 (ha->ip_config.ipv4_options &
655 IPOPT_VLAN_TAGGING_ENABLE) ?
656 "enabled" : "disabled");
657 else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6)
658 len = sprintf(buf, "%s\n",
659 (ha->ip_config.ipv6_options &
660 IPV6_OPT_VLAN_TAGGING_ENABLE) ?
661 "enabled" : "disabled");
662 break;
943c157b
VC		 663 case ISCSI_NET_PARAM_MTU:
664 len = sprintf(buf, "%d\n", ha->ip_config.eth_mtu_size);
665 break;
2ada7fc5
VC		 666 case ISCSI_NET_PARAM_PORT:
667 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
668 len = sprintf(buf, "%d\n", ha->ip_config.ipv4_port);
669 else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6)
670 len = sprintf(buf, "%d\n", ha->ip_config.ipv6_port);
671 break;
ed1086e0
VC		 672 default:
673 len = -ENOSYS;
674 }
675
676 return len;
677}
678
b3a271a9
MR		 679static struct iscsi_endpoint *
680qla4xxx_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr,
681 int non_blocking)
5c656af7 682{
b3a271a9
MR		 683 int ret;
684 struct iscsi_endpoint *ep;
685 struct qla_endpoint *qla_ep;
686 struct scsi_qla_host *ha;
687 struct sockaddr_in *addr;
688 struct sockaddr_in6 *addr6;
5c656af7 689
b3a271a9
MR		 690 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
691 if (!shost) {
692 ret = -ENXIO;
693 printk(KERN_ERR "%s: shost is NULL\n",
694 __func__);
695 return ERR_PTR(ret);
696 }
5c656af7 697
b3a271a9
MR		 698 ha = iscsi_host_priv(shost);
699
700 ep = iscsi_create_endpoint(sizeof(struct qla_endpoint));
701 if (!ep) {
702 ret = -ENOMEM;
703 return ERR_PTR(ret);
704 }
705
706 qla_ep = ep->dd_data;
707 memset(qla_ep, 0, sizeof(struct qla_endpoint));
708 if (dst_addr->sa_family == AF_INET) {
709 memcpy(&qla_ep->dst_addr, dst_addr, sizeof(struct sockaddr_in));
710 addr = (struct sockaddr_in *)&qla_ep->dst_addr;
711 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI4\n", __func__,
712 (char *)&addr->sin_addr));
713 } else if (dst_addr->sa_family == AF_INET6) {
714 memcpy(&qla_ep->dst_addr, dst_addr,
715 sizeof(struct sockaddr_in6));
716 addr6 = (struct sockaddr_in6 *)&qla_ep->dst_addr;
717 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI6\n", __func__,
718 (char *)&addr6->sin6_addr));
719 }
720
721 qla_ep->host = shost;
722
723 return ep;
5c656af7
MC		 724}
725
b3a271a9 726static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms)
afaf5a2d 727{
b3a271a9
MR		 728 struct qla_endpoint *qla_ep;
729 struct scsi_qla_host *ha;
730 int ret = 0;
afaf5a2d 731
b3a271a9
MR		 732 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
733 qla_ep = ep->dd_data;
734 ha = to_qla_host(qla_ep->host);
735
13483730 736 if (adapter_up(ha) && !test_bit(AF_BUILD_DDB_LIST, &ha->flags))
b3a271a9
MR		 737 ret = 1;
738
739 return ret;
740}
741
742static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep)
743{
744 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
745 iscsi_destroy_endpoint(ep);
746}
747
748static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep,
749 enum iscsi_param param,
750 char *buf)
751{
752 struct qla_endpoint *qla_ep = ep->dd_data;
753 struct sockaddr *dst_addr;
754
755 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
756
757 switch (param) {
758 case ISCSI_PARAM_CONN_PORT:
759 case ISCSI_PARAM_CONN_ADDRESS:
760 if (!qla_ep)
761 return -ENOTCONN;
762
763 dst_addr = (struct sockaddr *)&qla_ep->dst_addr;
764 if (!dst_addr)
765 return -ENOTCONN;
766
767 return iscsi_conn_get_addr_param((struct sockaddr_storage *)
768 &qla_ep->dst_addr, param, buf);
769 default:
770 return -ENOSYS;
771 }
772}
773
774static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn,
775 struct iscsi_stats *stats)
776{
777 struct iscsi_session *sess;
778 struct iscsi_cls_session *cls_sess;
779 struct ddb_entry *ddb_entry;
780 struct scsi_qla_host *ha;
781 struct ql_iscsi_stats *ql_iscsi_stats;
782 int stats_size;
783 int ret;
784 dma_addr_t iscsi_stats_dma;
785
786 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
568d303b 787
b3a271a9
MR		 788 cls_sess = iscsi_conn_to_session(cls_conn);
789 sess = cls_sess->dd_data;
790 ddb_entry = sess->dd_data;
791 ha = ddb_entry->ha;
792
793 stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats));
794 /* Allocate memory */
795 ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size,
796 &iscsi_stats_dma, GFP_KERNEL);
797 if (!ql_iscsi_stats) {
798 ql4_printk(KERN_ERR, ha,
799 "Unable to allocate memory for iscsi stats\n");
800 goto exit_get_stats;
568d303b 801 }
b3a271a9
MR		 802
803 ret = qla4xxx_get_mgmt_data(ha, ddb_entry->fw_ddb_index, stats_size,
804 iscsi_stats_dma);
805 if (ret != QLA_SUCCESS) {
806 ql4_printk(KERN_ERR, ha,
59e13d48 807 "Unable to retrieve iscsi stats\n");
b3a271a9
MR		 808 goto free_stats;
809 }
810
811 /* octets */
812 stats->txdata_octets = le64_to_cpu(ql_iscsi_stats->tx_data_octets);
813 stats->rxdata_octets = le64_to_cpu(ql_iscsi_stats->rx_data_octets);
814 /* xmit pdus */
815 stats->noptx_pdus = le32_to_cpu(ql_iscsi_stats->tx_nopout_pdus);
816 stats->scsicmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_cmd_pdus);
817 stats->tmfcmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_tmf_cmd_pdus);
818 stats->login_pdus = le32_to_cpu(ql_iscsi_stats->tx_login_cmd_pdus);
819 stats->text_pdus = le32_to_cpu(ql_iscsi_stats->tx_text_cmd_pdus);
820 stats->dataout_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_write_pdus);
821 stats->logout_pdus = le32_to_cpu(ql_iscsi_stats->tx_logout_cmd_pdus);
822 stats->snack_pdus = le32_to_cpu(ql_iscsi_stats->tx_snack_req_pdus);
823 /* recv pdus */
824 stats->noprx_pdus = le32_to_cpu(ql_iscsi_stats->rx_nopin_pdus);
825 stats->scsirsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_resp_pdus);
826 stats->tmfrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_tmf_resp_pdus);
827 stats->textrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_text_resp_pdus);
828 stats->datain_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_read_pdus);
829 stats->logoutrsp_pdus =
830 le32_to_cpu(ql_iscsi_stats->rx_logout_resp_pdus);
831 stats->r2t_pdus = le32_to_cpu(ql_iscsi_stats->rx_r2t_pdus);
832 stats->async_pdus = le32_to_cpu(ql_iscsi_stats->rx_async_pdus);
833 stats->rjt_pdus = le32_to_cpu(ql_iscsi_stats->rx_reject_pdus);
834
835free_stats:
836 dma_free_coherent(&ha->pdev->dev, stats_size, ql_iscsi_stats,
837 iscsi_stats_dma);
838exit_get_stats:
839 return;
840}
841
842static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc)
843{
844 struct iscsi_cls_session *session;
845 struct iscsi_session *sess;
846 unsigned long flags;
847 enum blk_eh_timer_return ret = BLK_EH_NOT_HANDLED;
848
849 session = starget_to_session(scsi_target(sc->device));
850 sess = session->dd_data;
851
852 spin_lock_irqsave(&session->lock, flags);
853 if (session->state == ISCSI_SESSION_FAILED)
854 ret = BLK_EH_RESET_TIMER;
855 spin_unlock_irqrestore(&session->lock, flags);
856
857 return ret;
afaf5a2d
DS		 858}
859
3254dbe9
VC		 860static void qla4xxx_set_port_speed(struct Scsi_Host *shost)
861{
862 struct scsi_qla_host *ha = to_qla_host(shost);
e16d166e 863 struct iscsi_cls_host *ihost = shost->shost_data;
3254dbe9
VC		 864 uint32_t speed = ISCSI_PORT_SPEED_UNKNOWN;
865
866 qla4xxx_get_firmware_state(ha);
867
868 switch (ha->addl_fw_state & 0x0F00) {
869 case FW_ADDSTATE_LINK_SPEED_10MBPS:
870 speed = ISCSI_PORT_SPEED_10MBPS;
871 break;
872 case FW_ADDSTATE_LINK_SPEED_100MBPS:
873 speed = ISCSI_PORT_SPEED_100MBPS;
874 break;
875 case FW_ADDSTATE_LINK_SPEED_1GBPS:
876 speed = ISCSI_PORT_SPEED_1GBPS;
877 break;
878 case FW_ADDSTATE_LINK_SPEED_10GBPS:
879 speed = ISCSI_PORT_SPEED_10GBPS;
880 break;
881 }
882 ihost->port_speed = speed;
883}
884
885static void qla4xxx_set_port_state(struct Scsi_Host *shost)
886{
887 struct scsi_qla_host *ha = to_qla_host(shost);
e16d166e 888 struct iscsi_cls_host *ihost = shost->shost_data;
3254dbe9
VC		 889 uint32_t state = ISCSI_PORT_STATE_DOWN;
890
891 if (test_bit(AF_LINK_UP, &ha->flags))
892 state = ISCSI_PORT_STATE_UP;
893
894 ihost->port_state = state;
895}
896
aa1e93a2
MC		 897static int qla4xxx_host_get_param(struct Scsi_Host *shost,
898 enum iscsi_host_param param, char *buf)
899{
900 struct scsi_qla_host *ha = to_qla_host(shost);
901 int len;
902
903 switch (param) {
904 case ISCSI_HOST_PARAM_HWADDRESS:
7ffc49a6 905 len = sysfs_format_mac(buf, ha->my_mac, MAC_ADDR_LEN);
8ad5781a 906 break;
22236961 907 case ISCSI_HOST_PARAM_IPADDRESS:
2bab08fc 908 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address);
22236961 909 break;
8ad5781a 910 case ISCSI_HOST_PARAM_INITIATOR_NAME:
22236961 911 len = sprintf(buf, "%s\n", ha->name_string);
aa1e93a2 912 break;
3254dbe9
VC		 913 case ISCSI_HOST_PARAM_PORT_STATE:
914 qla4xxx_set_port_state(shost);
915 len = sprintf(buf, "%s\n", iscsi_get_port_state_name(shost));
916 break;
917 case ISCSI_HOST_PARAM_PORT_SPEED:
918 qla4xxx_set_port_speed(shost);
919 len = sprintf(buf, "%s\n", iscsi_get_port_speed_name(shost));
920 break;
aa1e93a2
MC		 921 default:
922 return -ENOSYS;
923 }
924
925 return len;
926}
927
ed1086e0
VC		 928static void qla4xxx_create_ipv4_iface(struct scsi_qla_host *ha)
929{
930 if (ha->iface_ipv4)
931 return;
932
933 /* IPv4 */
934 ha->iface_ipv4 = iscsi_create_iface(ha->host,
935 &qla4xxx_iscsi_transport,
936 ISCSI_IFACE_TYPE_IPV4, 0, 0);
937 if (!ha->iface_ipv4)
938 ql4_printk(KERN_ERR, ha, "Could not create IPv4 iSCSI "
939 "iface0.\n");
940}
941
942static void qla4xxx_create_ipv6_iface(struct scsi_qla_host *ha)
943{
944 if (!ha->iface_ipv6_0)
945 /* IPv6 iface-0 */
946 ha->iface_ipv6_0 = iscsi_create_iface(ha->host,
947 &qla4xxx_iscsi_transport,
948 ISCSI_IFACE_TYPE_IPV6, 0,
949 0);
950 if (!ha->iface_ipv6_0)
951 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI "
952 "iface0.\n");
953
954 if (!ha->iface_ipv6_1)
955 /* IPv6 iface-1 */
956 ha->iface_ipv6_1 = iscsi_create_iface(ha->host,
957 &qla4xxx_iscsi_transport,
958 ISCSI_IFACE_TYPE_IPV6, 1,
959 0);
960 if (!ha->iface_ipv6_1)
961 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI "
962 "iface1.\n");
963}
964
965static void qla4xxx_create_ifaces(struct scsi_qla_host *ha)
966{
967 if (ha->ip_config.ipv4_options & IPOPT_IPV4_PROTOCOL_ENABLE)
968 qla4xxx_create_ipv4_iface(ha);
969
970 if (ha->ip_config.ipv6_options & IPV6_OPT_IPV6_PROTOCOL_ENABLE)
971 qla4xxx_create_ipv6_iface(ha);
972}
973
974static void qla4xxx_destroy_ipv4_iface(struct scsi_qla_host *ha)
975{
976 if (ha->iface_ipv4) {
977 iscsi_destroy_iface(ha->iface_ipv4);
978 ha->iface_ipv4 = NULL;
979 }
980}
981
982static void qla4xxx_destroy_ipv6_iface(struct scsi_qla_host *ha)
983{
984 if (ha->iface_ipv6_0) {
985 iscsi_destroy_iface(ha->iface_ipv6_0);
986 ha->iface_ipv6_0 = NULL;
987 }
988 if (ha->iface_ipv6_1) {
989 iscsi_destroy_iface(ha->iface_ipv6_1);
990 ha->iface_ipv6_1 = NULL;
991 }
992}
993
994static void qla4xxx_destroy_ifaces(struct scsi_qla_host *ha)
995{
996 qla4xxx_destroy_ipv4_iface(ha);
997 qla4xxx_destroy_ipv6_iface(ha);
998}
999
d00efe3f
MC		 1000static void qla4xxx_set_ipv6(struct scsi_qla_host *ha,
1001 struct iscsi_iface_param_info *iface_param,
1002 struct addr_ctrl_blk *init_fw_cb)
1003{
1004 /*
1005 * iface_num 0 is valid for IPv6 Addr, linklocal, router, autocfg.
1006 * iface_num 1 is valid only for IPv6 Addr.
1007 */
1008 switch (iface_param->param) {
1009 case ISCSI_NET_PARAM_IPV6_ADDR:
1010 if (iface_param->iface_num & 0x1)
1011 /* IPv6 Addr 1 */
1012 memcpy(init_fw_cb->ipv6_addr1, iface_param->value,
1013 sizeof(init_fw_cb->ipv6_addr1));
1014 else
1015 /* IPv6 Addr 0 */
1016 memcpy(init_fw_cb->ipv6_addr0, iface_param->value,
1017 sizeof(init_fw_cb->ipv6_addr0));
1018 break;
1019 case ISCSI_NET_PARAM_IPV6_LINKLOCAL:
1020 if (iface_param->iface_num & 0x1)
1021 break;
1022 memcpy(init_fw_cb->ipv6_if_id, &iface_param->value[8],
1023 sizeof(init_fw_cb->ipv6_if_id));
1024 break;
1025 case ISCSI_NET_PARAM_IPV6_ROUTER:
1026 if (iface_param->iface_num & 0x1)
1027 break;
1028 memcpy(init_fw_cb->ipv6_dflt_rtr_addr, iface_param->value,
1029 sizeof(init_fw_cb->ipv6_dflt_rtr_addr));
1030 break;
1031 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG:
1032 /* Autocfg applies to even interface */
1033 if (iface_param->iface_num & 0x1)
1034 break;
1035
1036 if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_DISABLE)
1037 init_fw_cb->ipv6_addtl_opts &=
1038 cpu_to_le16(
1039 ~IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE);
1040 else if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_ND_ENABLE)
1041 init_fw_cb->ipv6_addtl_opts |=
1042 cpu_to_le16(
1043 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE);
1044 else
1045 ql4_printk(KERN_ERR, ha, "Invalid autocfg setting for "
1046 "IPv6 addr\n");
1047 break;
1048 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG:
1049 /* Autocfg applies to even interface */
1050 if (iface_param->iface_num & 0x1)
1051 break;
1052
1053 if (iface_param->value[0] ==
1054 ISCSI_IPV6_LINKLOCAL_AUTOCFG_ENABLE)
1055 init_fw_cb->ipv6_addtl_opts |= cpu_to_le16(
1056 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR);
1057 else if (iface_param->value[0] ==
1058 ISCSI_IPV6_LINKLOCAL_AUTOCFG_DISABLE)
1059 init_fw_cb->ipv6_addtl_opts &= cpu_to_le16(
1060 ~IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR);
1061 else
1062 ql4_printk(KERN_ERR, ha, "Invalid autocfg setting for "
1063 "IPv6 linklocal addr\n");
1064 break;
1065 case ISCSI_NET_PARAM_IPV6_ROUTER_AUTOCFG:
1066 /* Autocfg applies to even interface */
1067 if (iface_param->iface_num & 0x1)
1068 break;
1069
1070 if (iface_param->value[0] == ISCSI_IPV6_ROUTER_AUTOCFG_ENABLE)
1071 memset(init_fw_cb->ipv6_dflt_rtr_addr, 0,
1072 sizeof(init_fw_cb->ipv6_dflt_rtr_addr));
1073 break;
1074 case ISCSI_NET_PARAM_IFACE_ENABLE:
ed1086e0 1075 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) {
d00efe3f
MC		 1076 init_fw_cb->ipv6_opts |=
1077 cpu_to_le16(IPV6_OPT_IPV6_PROTOCOL_ENABLE);
ed1086e0
VC		 1078 qla4xxx_create_ipv6_iface(ha);
1079 } else {
d00efe3f
MC		 1080 init_fw_cb->ipv6_opts &=
1081 cpu_to_le16(~IPV6_OPT_IPV6_PROTOCOL_ENABLE &
1082 0xFFFF);
ed1086e0
VC		 1083 qla4xxx_destroy_ipv6_iface(ha);
1084 }
d00efe3f 1085 break;
2d63673b 1086 case ISCSI_NET_PARAM_VLAN_TAG:
d00efe3f
MC		 1087 if (iface_param->len != sizeof(init_fw_cb->ipv6_vlan_tag))
1088 break;
6ac73e8c
VC		 1089 init_fw_cb->ipv6_vlan_tag =
1090 cpu_to_be16(*(uint16_t *)iface_param->value);
1091 break;
1092 case ISCSI_NET_PARAM_VLAN_ENABLED:
1093 if (iface_param->value[0] == ISCSI_VLAN_ENABLE)
1094 init_fw_cb->ipv6_opts |=
1095 cpu_to_le16(IPV6_OPT_VLAN_TAGGING_ENABLE);
1096 else
1097 init_fw_cb->ipv6_opts &=
1098 cpu_to_le16(~IPV6_OPT_VLAN_TAGGING_ENABLE);
d00efe3f 1099 break;
943c157b
VC		 1100 case ISCSI_NET_PARAM_MTU:
1101 init_fw_cb->eth_mtu_size =
1102 cpu_to_le16(*(uint16_t *)iface_param->value);
1103 break;
2ada7fc5
VC		 1104 case ISCSI_NET_PARAM_PORT:
1105 /* Autocfg applies to even interface */
1106 if (iface_param->iface_num & 0x1)
1107 break;
1108
1109 init_fw_cb->ipv6_port =
1110 cpu_to_le16(*(uint16_t *)iface_param->value);
1111 break;
d00efe3f
MC		 1112 default:
1113 ql4_printk(KERN_ERR, ha, "Unknown IPv6 param = %d\n",
1114 iface_param->param);
1115 break;
1116 }
1117}
1118
1119static void qla4xxx_set_ipv4(struct scsi_qla_host *ha,
1120 struct iscsi_iface_param_info *iface_param,
1121 struct addr_ctrl_blk *init_fw_cb)
1122{
1123 switch (iface_param->param) {
1124 case ISCSI_NET_PARAM_IPV4_ADDR:
1125 memcpy(init_fw_cb->ipv4_addr, iface_param->value,
1126 sizeof(init_fw_cb->ipv4_addr));
1127 break;
1128 case ISCSI_NET_PARAM_IPV4_SUBNET:
1129 memcpy(init_fw_cb->ipv4_subnet, iface_param->value,
1130 sizeof(init_fw_cb->ipv4_subnet));
1131 break;
1132 case ISCSI_NET_PARAM_IPV4_GW:
1133 memcpy(init_fw_cb->ipv4_gw_addr, iface_param->value,
1134 sizeof(init_fw_cb->ipv4_gw_addr));
1135 break;
1136 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
1137 if (iface_param->value[0] == ISCSI_BOOTPROTO_DHCP)
1138 init_fw_cb->ipv4_tcp_opts |=
1139 cpu_to_le16(TCPOPT_DHCP_ENABLE);
1140 else if (iface_param->value[0] == ISCSI_BOOTPROTO_STATIC)
1141 init_fw_cb->ipv4_tcp_opts &=
1142 cpu_to_le16(~TCPOPT_DHCP_ENABLE);
1143 else
1144 ql4_printk(KERN_ERR, ha, "Invalid IPv4 bootproto\n");
1145 break;
1146 case ISCSI_NET_PARAM_IFACE_ENABLE:
ed1086e0 1147 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) {
d00efe3f 1148 init_fw_cb->ipv4_ip_opts |=
2bab08fc 1149 cpu_to_le16(IPOPT_IPV4_PROTOCOL_ENABLE);
ed1086e0
VC		 1150 qla4xxx_create_ipv4_iface(ha);
1151 } else {
d00efe3f 1152 init_fw_cb->ipv4_ip_opts &=
2bab08fc 1153 cpu_to_le16(~IPOPT_IPV4_PROTOCOL_ENABLE &
d00efe3f 1154 0xFFFF);
ed1086e0
VC		 1155 qla4xxx_destroy_ipv4_iface(ha);
1156 }
d00efe3f 1157 break;
2d63673b 1158 case ISCSI_NET_PARAM_VLAN_TAG:
d00efe3f
MC		 1159 if (iface_param->len != sizeof(init_fw_cb->ipv4_vlan_tag))
1160 break;
6ac73e8c
VC		 1161 init_fw_cb->ipv4_vlan_tag =
1162 cpu_to_be16(*(uint16_t *)iface_param->value);
1163 break;
1164 case ISCSI_NET_PARAM_VLAN_ENABLED:
1165 if (iface_param->value[0] == ISCSI_VLAN_ENABLE)
1166 init_fw_cb->ipv4_ip_opts |=
1167 cpu_to_le16(IPOPT_VLAN_TAGGING_ENABLE);
1168 else
1169 init_fw_cb->ipv4_ip_opts &=
1170 cpu_to_le16(~IPOPT_VLAN_TAGGING_ENABLE);
d00efe3f 1171 break;
943c157b
VC		 1172 case ISCSI_NET_PARAM_MTU:
1173 init_fw_cb->eth_mtu_size =
1174 cpu_to_le16(*(uint16_t *)iface_param->value);
1175 break;
2ada7fc5
VC		 1176 case ISCSI_NET_PARAM_PORT:
1177 init_fw_cb->ipv4_port =
1178 cpu_to_le16(*(uint16_t *)iface_param->value);
1179 break;
d00efe3f
MC		 1180 default:
1181 ql4_printk(KERN_ERR, ha, "Unknown IPv4 param = %d\n",
1182 iface_param->param);
1183 break;
1184 }
1185}
1186
1187static void
1188qla4xxx_initcb_to_acb(struct addr_ctrl_blk *init_fw_cb)
1189{
1190 struct addr_ctrl_blk_def *acb;
1191 acb = (struct addr_ctrl_blk_def *)init_fw_cb;
1192 memset(acb->reserved1, 0, sizeof(acb->reserved1));
1193 memset(acb->reserved2, 0, sizeof(acb->reserved2));
1194 memset(acb->reserved3, 0, sizeof(acb->reserved3));
1195 memset(acb->reserved4, 0, sizeof(acb->reserved4));
1196 memset(acb->reserved5, 0, sizeof(acb->reserved5));
1197 memset(acb->reserved6, 0, sizeof(acb->reserved6));
1198 memset(acb->reserved7, 0, sizeof(acb->reserved7));
1199 memset(acb->reserved8, 0, sizeof(acb->reserved8));
1200 memset(acb->reserved9, 0, sizeof(acb->reserved9));
1201 memset(acb->reserved10, 0, sizeof(acb->reserved10));
1202 memset(acb->reserved11, 0, sizeof(acb->reserved11));
1203 memset(acb->reserved12, 0, sizeof(acb->reserved12));
1204 memset(acb->reserved13, 0, sizeof(acb->reserved13));
1205 memset(acb->reserved14, 0, sizeof(acb->reserved14));
1206 memset(acb->reserved15, 0, sizeof(acb->reserved15));
1207}
1208
1209static int
00c31889 1210qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data, uint32_t len)
d00efe3f
MC		 1211{
1212 struct scsi_qla_host *ha = to_qla_host(shost);
1213 int rval = 0;
1214 struct iscsi_iface_param_info *iface_param = NULL;
1215 struct addr_ctrl_blk *init_fw_cb = NULL;
1216 dma_addr_t init_fw_cb_dma;
1217 uint32_t mbox_cmd[MBOX_REG_COUNT];
1218 uint32_t mbox_sts[MBOX_REG_COUNT];
00c31889
MC		 1219 uint32_t rem = len;
1220 struct nlattr *attr;
d00efe3f
MC		 1221
1222 init_fw_cb = dma_alloc_coherent(&ha->pdev->dev,
1223 sizeof(struct addr_ctrl_blk),
1224 &init_fw_cb_dma, GFP_KERNEL);
1225 if (!init_fw_cb) {
1226 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc init_cb\n",
1227 __func__);
1228 return -ENOMEM;
1229 }
1230
1231 memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk));
1232 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1233 memset(&mbox_sts, 0, sizeof(mbox_sts));
1234
1235 if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma)) {
1236 ql4_printk(KERN_ERR, ha, "%s: get ifcb failed\n", __func__);
1237 rval = -EIO;
1238 goto exit_init_fw_cb;
1239 }
1240
00c31889
MC		 1241 nla_for_each_attr(attr, data, len, rem) {
1242 iface_param = nla_data(attr);
d00efe3f
MC		 1243
1244 if (iface_param->param_type != ISCSI_NET_PARAM)
1245 continue;
1246
1247 switch (iface_param->iface_type) {
1248 case ISCSI_IFACE_TYPE_IPV4:
1249 switch (iface_param->iface_num) {
1250 case 0:
1251 qla4xxx_set_ipv4(ha, iface_param, init_fw_cb);
1252 break;
1253 default:
1254 /* Cannot have more than one IPv4 interface */
1255 ql4_printk(KERN_ERR, ha, "Invalid IPv4 iface "
1256 "number = %d\n",
1257 iface_param->iface_num);
1258 break;
1259 }
1260 break;
1261 case ISCSI_IFACE_TYPE_IPV6:
1262 switch (iface_param->iface_num) {
1263 case 0:
1264 case 1:
1265 qla4xxx_set_ipv6(ha, iface_param, init_fw_cb);
1266 break;
1267 default:
1268 /* Cannot have more than two IPv6 interface */
1269 ql4_printk(KERN_ERR, ha, "Invalid IPv6 iface "
1270 "number = %d\n",
1271 iface_param->iface_num);
1272 break;
1273 }
1274 break;
1275 default:
1276 ql4_printk(KERN_ERR, ha, "Invalid iface type\n");
1277 break;
1278 }
d00efe3f
MC		 1279 }
1280
1281 init_fw_cb->cookie = cpu_to_le32(0x11BEAD5A);
1282
1283 rval = qla4xxx_set_flash(ha, init_fw_cb_dma, FLASH_SEGMENT_IFCB,
1284 sizeof(struct addr_ctrl_blk),
1285 FLASH_OPT_RMW_COMMIT);
1286 if (rval != QLA_SUCCESS) {
1287 ql4_printk(KERN_ERR, ha, "%s: set flash mbx failed\n",
1288 __func__);
1289 rval = -EIO;
1290 goto exit_init_fw_cb;
1291 }
1292
ce505f9d
VC		 1293 rval = qla4xxx_disable_acb(ha);
1294 if (rval != QLA_SUCCESS) {
1295 ql4_printk(KERN_ERR, ha, "%s: disable acb mbx failed\n",
1296 __func__);
1297 rval = -EIO;
1298 goto exit_init_fw_cb;
1299 }
1300
1301 wait_for_completion_timeout(&ha->disable_acb_comp,
1302 DISABLE_ACB_TOV * HZ);
d00efe3f
MC		 1303
1304 qla4xxx_initcb_to_acb(init_fw_cb);
1305
1306 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma);
1307 if (rval != QLA_SUCCESS) {
1308 ql4_printk(KERN_ERR, ha, "%s: set acb mbx failed\n",
1309 __func__);
1310 rval = -EIO;
1311 goto exit_init_fw_cb;
1312 }
1313
1314 memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk));
1315 qla4xxx_update_local_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb,
1316 init_fw_cb_dma);
1317
1318exit_init_fw_cb:
1319 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk),
1320 init_fw_cb, init_fw_cb_dma);
1321
1322 return rval;
1323}
1324
fca9f04d
MC		 1325static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess,
1326 enum iscsi_param param, char *buf)
1327{
1328 struct iscsi_session *sess = cls_sess->dd_data;
1329 struct ddb_entry *ddb_entry = sess->dd_data;
1330 struct scsi_qla_host *ha = ddb_entry->ha;
1331 int rval, len;
1332 uint16_t idx;
1333
1334 switch (param) {
1335 case ISCSI_PARAM_CHAP_IN_IDX:
1336 rval = qla4xxx_get_chap_index(ha, sess->username_in,
1337 sess->password_in, BIDI_CHAP,
1338 &idx);
1339 if (rval)
c7a5e0d0
MR		 1340 len = sprintf(buf, "\n");
1341 else
1342 len = sprintf(buf, "%hu\n", idx);
fca9f04d
MC		 1343 break;
1344 case ISCSI_PARAM_CHAP_OUT_IDX:
1345 rval = qla4xxx_get_chap_index(ha, sess->username,
1346 sess->password, LOCAL_CHAP,
1347 &idx);
1348 if (rval)
c7a5e0d0
MR		 1349 len = sprintf(buf, "\n");
1350 else
1351 len = sprintf(buf, "%hu\n", idx);
fca9f04d
MC		 1352 break;
1353 default:
1354 return iscsi_session_get_param(cls_sess, param, buf);
1355 }
1356
1357 return len;
1358}
1359
b3a271a9 1360static int qla4xxx_conn_get_param(struct iscsi_cls_conn *cls_conn,
afaf5a2d
DS		 1361 enum iscsi_param param, char *buf)
1362{
b3a271a9
MR		 1363 struct iscsi_conn *conn;
1364 struct qla_conn *qla_conn;
1365 struct sockaddr *dst_addr;
1366 int len = 0;
afaf5a2d 1367
b3a271a9
MR		 1368 conn = cls_conn->dd_data;
1369 qla_conn = conn->dd_data;
d46bdeb1 1370 dst_addr = (struct sockaddr *)&qla_conn->qla_ep->dst_addr;
afaf5a2d
DS		 1371
1372 switch (param) {
1373 case ISCSI_PARAM_CONN_PORT:
afaf5a2d 1374 case ISCSI_PARAM_CONN_ADDRESS:
b3a271a9
MR		 1375 return iscsi_conn_get_addr_param((struct sockaddr_storage *)
1376 dst_addr, param, buf);
afaf5a2d 1377 default:
b3a271a9 1378 return iscsi_conn_get_param(cls_conn, param, buf);
afaf5a2d
DS		 1379 }
1380
1381 return len;
b3a271a9 1382
afaf5a2d
DS		 1383}
1384
13483730
MC		 1385int qla4xxx_get_ddb_index(struct scsi_qla_host *ha, uint16_t *ddb_index)
1386{
1387 uint32_t mbx_sts = 0;
1388 uint16_t tmp_ddb_index;
1389 int ret;
1390
1391get_ddb_index:
1392 tmp_ddb_index = find_first_zero_bit(ha->ddb_idx_map, MAX_DDB_ENTRIES);
1393
1394 if (tmp_ddb_index >= MAX_DDB_ENTRIES) {
1395 DEBUG2(ql4_printk(KERN_INFO, ha,
1396 "Free DDB index not available\n"));
1397 ret = QLA_ERROR;
1398 goto exit_get_ddb_index;
1399 }
1400
1401 if (test_and_set_bit(tmp_ddb_index, ha->ddb_idx_map))
1402 goto get_ddb_index;
1403
1404 DEBUG2(ql4_printk(KERN_INFO, ha,
1405 "Found a free DDB index at %d\n", tmp_ddb_index));
1406 ret = qla4xxx_req_ddb_entry(ha, tmp_ddb_index, &mbx_sts);
1407 if (ret == QLA_ERROR) {
1408 if (mbx_sts == MBOX_STS_COMMAND_ERROR) {
1409 ql4_printk(KERN_INFO, ha,
1410 "DDB index = %d not available trying next\n",
1411 tmp_ddb_index);
1412 goto get_ddb_index;
1413 }
1414 DEBUG2(ql4_printk(KERN_INFO, ha,
1415 "Free FW DDB not available\n"));
1416 }
1417
1418 *ddb_index = tmp_ddb_index;
1419
1420exit_get_ddb_index:
1421 return ret;
1422}
1423
1424static int qla4xxx_match_ipaddress(struct scsi_qla_host *ha,
1425 struct ddb_entry *ddb_entry,
1426 char *existing_ipaddr,
1427 char *user_ipaddr)
1428{
1429 uint8_t dst_ipaddr[IPv6_ADDR_LEN];
1430 char formatted_ipaddr[DDB_IPADDR_LEN];
1431 int status = QLA_SUCCESS, ret = 0;
1432
1433 if (ddb_entry->fw_ddb_entry.options & DDB_OPT_IPV6_DEVICE) {
1434 ret = in6_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr,
1435 '\0', NULL);
1436 if (ret == 0) {
1437 status = QLA_ERROR;
1438 goto out_match;
1439 }
1440 ret = sprintf(formatted_ipaddr, "%pI6", dst_ipaddr);
1441 } else {
1442 ret = in4_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr,
1443 '\0', NULL);
1444 if (ret == 0) {
1445 status = QLA_ERROR;
1446 goto out_match;
1447 }
1448 ret = sprintf(formatted_ipaddr, "%pI4", dst_ipaddr);
1449 }
1450
1451 if (strcmp(existing_ipaddr, formatted_ipaddr))
1452 status = QLA_ERROR;
1453
1454out_match:
1455 return status;
1456}
1457
1458static int qla4xxx_match_fwdb_session(struct scsi_qla_host *ha,
1459 struct iscsi_cls_conn *cls_conn)
1460{
1461 int idx = 0, max_ddbs, rval;
1462 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
1463 struct iscsi_session *sess, *existing_sess;
1464 struct iscsi_conn *conn, *existing_conn;
1465 struct ddb_entry *ddb_entry;
1466
1467 sess = cls_sess->dd_data;
1468 conn = cls_conn->dd_data;
1469
1470 if (sess->targetname == NULL ||
1471 conn->persistent_address == NULL ||
1472 conn->persistent_port == 0)
1473 return QLA_ERROR;
1474
1475 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
1476 MAX_DEV_DB_ENTRIES;
1477
1478 for (idx = 0; idx < max_ddbs; idx++) {
1479 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
1480 if (ddb_entry == NULL)
1481 continue;
1482
1483 if (ddb_entry->ddb_type != FLASH_DDB)
1484 continue;
1485
1486 existing_sess = ddb_entry->sess->dd_data;
1487 existing_conn = ddb_entry->conn->dd_data;
1488
1489 if (existing_sess->targetname == NULL ||
1490 existing_conn->persistent_address == NULL ||
1491 existing_conn->persistent_port == 0)
1492 continue;
1493
1494 DEBUG2(ql4_printk(KERN_INFO, ha,
1495 "IQN = %s User IQN = %s\n",
1496 existing_sess->targetname,
1497 sess->targetname));
1498
1499 DEBUG2(ql4_printk(KERN_INFO, ha,
1500 "IP = %s User IP = %s\n",
1501 existing_conn->persistent_address,
1502 conn->persistent_address));
1503
1504 DEBUG2(ql4_printk(KERN_INFO, ha,
1505 "Port = %d User Port = %d\n",
1506 existing_conn->persistent_port,
1507 conn->persistent_port));
1508
1509 if (strcmp(existing_sess->targetname, sess->targetname))
1510 continue;
1511 rval = qla4xxx_match_ipaddress(ha, ddb_entry,
1512 existing_conn->persistent_address,
1513 conn->persistent_address);
1514 if (rval == QLA_ERROR)
1515 continue;
1516 if (existing_conn->persistent_port != conn->persistent_port)
1517 continue;
1518 break;
1519 }
1520
1521 if (idx == max_ddbs)
1522 return QLA_ERROR;
1523
1524 DEBUG2(ql4_printk(KERN_INFO, ha,
1525 "Match found in fwdb sessions\n"));
1526 return QLA_SUCCESS;
1527}
1528
b3a271a9
MR		 1529static struct iscsi_cls_session *
1530qla4xxx_session_create(struct iscsi_endpoint *ep,
1531 uint16_t cmds_max, uint16_t qdepth,
1532 uint32_t initial_cmdsn)
1533{
1534 struct iscsi_cls_session *cls_sess;
1535 struct scsi_qla_host *ha;
1536 struct qla_endpoint *qla_ep;
1537 struct ddb_entry *ddb_entry;
13483730 1538 uint16_t ddb_index;
b3a271a9
MR		 1539 struct iscsi_session *sess;
1540 struct sockaddr *dst_addr;
1541 int ret;
1542
1543 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
1544 if (!ep) {
1545 printk(KERN_ERR "qla4xxx: missing ep.\n");
1546 return NULL;
1547 }
1548
1549 qla_ep = ep->dd_data;
1550 dst_addr = (struct sockaddr *)&qla_ep->dst_addr;
1551 ha = to_qla_host(qla_ep->host);
736cf369 1552
13483730
MC		 1553 ret = qla4xxx_get_ddb_index(ha, &ddb_index);
1554 if (ret == QLA_ERROR)
b3a271a9 1555 return NULL;
b3a271a9
MR		 1556
1557 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, qla_ep->host,
1558 cmds_max, sizeof(struct ddb_entry),
1559 sizeof(struct ql4_task_data),
1560 initial_cmdsn, ddb_index);
1561 if (!cls_sess)
1562 return NULL;
1563
1564 sess = cls_sess->dd_data;
1565 ddb_entry = sess->dd_data;
1566 ddb_entry->fw_ddb_index = ddb_index;
1567 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE;
1568 ddb_entry->ha = ha;
1569 ddb_entry->sess = cls_sess;
13483730
MC		 1570 ddb_entry->unblock_sess = qla4xxx_unblock_ddb;
1571 ddb_entry->ddb_change = qla4xxx_ddb_change;
b3a271a9
MR		 1572 cls_sess->recovery_tmo = ql4xsess_recovery_tmo;
1573 ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry;
1574 ha->tot_ddbs++;
1575
1576 return cls_sess;
1577}
1578
1579static void qla4xxx_session_destroy(struct iscsi_cls_session *cls_sess)
1580{
1581 struct iscsi_session *sess;
1582 struct ddb_entry *ddb_entry;
1583 struct scsi_qla_host *ha;
90599b62
MR		 1584 unsigned long flags, wtime;
1585 struct dev_db_entry *fw_ddb_entry = NULL;
1586 dma_addr_t fw_ddb_entry_dma;
1587 uint32_t ddb_state;
1588 int ret;
b3a271a9
MR		 1589
1590 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
1591 sess = cls_sess->dd_data;
1592 ddb_entry = sess->dd_data;
1593 ha = ddb_entry->ha;
1594
90599b62
MR		 1595 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
1596 &fw_ddb_entry_dma, GFP_KERNEL);
1597 if (!fw_ddb_entry) {
1598 ql4_printk(KERN_ERR, ha,
1599 "%s: Unable to allocate dma buffer\n", __func__);
1600 goto destroy_session;
1601 }
1602
1603 wtime = jiffies + (HZ * LOGOUT_TOV);
1604 do {
1605 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
1606 fw_ddb_entry, fw_ddb_entry_dma,
1607 NULL, NULL, &ddb_state, NULL,
1608 NULL, NULL);
1609 if (ret == QLA_ERROR)
1610 goto destroy_session;
1611
1612 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) ||
1613 (ddb_state == DDB_DS_SESSION_FAILED))
1614 goto destroy_session;
1615
1616 schedule_timeout_uninterruptible(HZ);
1617 } while ((time_after(wtime, jiffies)));
1618
1619destroy_session:
736cf369
MR		 1620 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
1621
b3a271a9
MR		 1622 spin_lock_irqsave(&ha->hardware_lock, flags);
1623 qla4xxx_free_ddb(ha, ddb_entry);
1624 spin_unlock_irqrestore(&ha->hardware_lock, flags);
90599b62 1625
b3a271a9 1626 iscsi_session_teardown(cls_sess);
90599b62
MR		 1627
1628 if (fw_ddb_entry)
1629 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
1630 fw_ddb_entry, fw_ddb_entry_dma);
b3a271a9
MR		 1631}
1632
b3a271a9
MR		 1633static struct iscsi_cls_conn *
1634qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx)
1635{
1636 struct iscsi_cls_conn *cls_conn;
1637 struct iscsi_session *sess;
1638 struct ddb_entry *ddb_entry;
1639
1640 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
1641 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn),
1642 conn_idx);
ff1d0319
MC		 1643 if (!cls_conn)
1644 return NULL;
1645
b3a271a9
MR		 1646 sess = cls_sess->dd_data;
1647 ddb_entry = sess->dd_data;
1648 ddb_entry->conn = cls_conn;
1649
1650 return cls_conn;
1651}
1652
1653static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session,
1654 struct iscsi_cls_conn *cls_conn,
1655 uint64_t transport_fd, int is_leading)
1656{
1657 struct iscsi_conn *conn;
1658 struct qla_conn *qla_conn;
1659 struct iscsi_endpoint *ep;
1660
1661 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
1662
1663 if (iscsi_conn_bind(cls_session, cls_conn, is_leading))
1664 return -EINVAL;
1665 ep = iscsi_lookup_endpoint(transport_fd);
1666 conn = cls_conn->dd_data;
1667 qla_conn = conn->dd_data;
1668 qla_conn->qla_ep = ep->dd_data;
1669 return 0;
1670}
1671
1672static int qla4xxx_conn_start(struct iscsi_cls_conn *cls_conn)
1673{
1674 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
1675 struct iscsi_session *sess;
1676 struct ddb_entry *ddb_entry;
1677 struct scsi_qla_host *ha;
13483730 1678 struct dev_db_entry *fw_ddb_entry = NULL;
b3a271a9 1679 dma_addr_t fw_ddb_entry_dma;
b3a271a9
MR		 1680 uint32_t mbx_sts = 0;
1681 int ret = 0;
1682 int status = QLA_SUCCESS;
1683
1684 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
1685 sess = cls_sess->dd_data;
1686 ddb_entry = sess->dd_data;
1687 ha = ddb_entry->ha;
1688
13483730
MC		 1689 /* Check if we have matching FW DDB, if yes then do not
1690 * login to this target. This could cause target to logout previous
1691 * connection
1692 */
1693 ret = qla4xxx_match_fwdb_session(ha, cls_conn);
1694 if (ret == QLA_SUCCESS) {
1695 ql4_printk(KERN_INFO, ha,
1696 "Session already exist in FW.\n");
1697 ret = -EEXIST;
1698 goto exit_conn_start;
1699 }
1700
b3a271a9
MR		 1701 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
1702 &fw_ddb_entry_dma, GFP_KERNEL);
1703 if (!fw_ddb_entry) {
1704 ql4_printk(KERN_ERR, ha,
1705 "%s: Unable to allocate dma buffer\n", __func__);
13483730
MC		 1706 ret = -ENOMEM;
1707 goto exit_conn_start;
b3a271a9
MR		 1708 }
1709
1710 ret = qla4xxx_set_param_ddbentry(ha, ddb_entry, cls_conn, &mbx_sts);
1711 if (ret) {
1712 /* If iscsid is stopped and started then no need to do
1713 * set param again since ddb state will be already
1714 * active and FW does not allow set ddb to an
1715 * active session.
1716 */
1717 if (mbx_sts)
1718 if (ddb_entry->fw_ddb_device_state ==
f922da79 1719 DDB_DS_SESSION_ACTIVE) {
13483730 1720 ddb_entry->unblock_sess(ddb_entry->sess);
b3a271a9 1721 goto exit_set_param;
f922da79 1722 }
b3a271a9
MR		 1723
1724 ql4_printk(KERN_ERR, ha, "%s: Failed set param for index[%d]\n",
1725 __func__, ddb_entry->fw_ddb_index);
1726 goto exit_conn_start;
1727 }
1728
1729 status = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index);
1730 if (status == QLA_ERROR) {
0e7e8501
MR		 1731 ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__,
1732 sess->targetname);
b3a271a9
MR		 1733 ret = -EINVAL;
1734 goto exit_conn_start;
1735 }
1736
98270ab4
MR		 1737 if (ddb_entry->fw_ddb_device_state == DDB_DS_NO_CONNECTION_ACTIVE)
1738 ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS;
1739
1740 DEBUG2(printk(KERN_INFO "%s: DDB state [%d]\n", __func__,
1741 ddb_entry->fw_ddb_device_state));
b3a271a9
MR		 1742
1743exit_set_param:
b3a271a9
MR		 1744 ret = 0;
1745
1746exit_conn_start:
13483730
MC		 1747 if (fw_ddb_entry)
1748 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
1749 fw_ddb_entry, fw_ddb_entry_dma);
b3a271a9
MR		 1750 return ret;
1751}
1752
1753static void qla4xxx_conn_destroy(struct iscsi_cls_conn *cls_conn)
1754{
1755 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
1756 struct iscsi_session *sess;
1757 struct scsi_qla_host *ha;
1758 struct ddb_entry *ddb_entry;
1759 int options;
1760
1761 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
1762 sess = cls_sess->dd_data;
1763 ddb_entry = sess->dd_data;
1764 ha = ddb_entry->ha;
1765
1766 options = LOGOUT_OPTION_CLOSE_SESSION;
1767 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR)
1768 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__);
b3a271a9
MR		 1769}
1770
1771static void qla4xxx_task_work(struct work_struct *wdata)
1772{
1773 struct ql4_task_data *task_data;
1774 struct scsi_qla_host *ha;
1775 struct passthru_status *sts;
1776 struct iscsi_task *task;
1777 struct iscsi_hdr *hdr;
1778 uint8_t *data;
1779 uint32_t data_len;
1780 struct iscsi_conn *conn;
1781 int hdr_len;
1782 itt_t itt;
1783
1784 task_data = container_of(wdata, struct ql4_task_data, task_work);
1785 ha = task_data->ha;
1786 task = task_data->task;
1787 sts = &task_data->sts;
1788 hdr_len = sizeof(struct iscsi_hdr);
1789
1790 DEBUG3(printk(KERN_INFO "Status returned\n"));
1791 DEBUG3(qla4xxx_dump_buffer(sts, 64));
1792 DEBUG3(printk(KERN_INFO "Response buffer"));
1793 DEBUG3(qla4xxx_dump_buffer(task_data->resp_buffer, 64));
1794
1795 conn = task->conn;
1796
1797 switch (sts->completionStatus) {
1798 case PASSTHRU_STATUS_COMPLETE:
1799 hdr = (struct iscsi_hdr *)task_data->resp_buffer;
1800 /* Assign back the itt in hdr, until we use the PREASSIGN_TAG */
1801 itt = sts->handle;
1802 hdr->itt = itt;
1803 data = task_data->resp_buffer + hdr_len;
1804 data_len = task_data->resp_len - hdr_len;
1805 iscsi_complete_pdu(conn, hdr, data, data_len);
1806 break;
1807 default:
1808 ql4_printk(KERN_ERR, ha, "Passthru failed status = 0x%x\n",
1809 sts->completionStatus);
1810 break;
1811 }
1812 return;
1813}
1814
1815static int qla4xxx_alloc_pdu(struct iscsi_task *task, uint8_t opcode)
1816{
1817 struct ql4_task_data *task_data;
1818 struct iscsi_session *sess;
1819 struct ddb_entry *ddb_entry;
1820 struct scsi_qla_host *ha;
1821 int hdr_len;
1822
1823 sess = task->conn->session;
1824 ddb_entry = sess->dd_data;
1825 ha = ddb_entry->ha;
1826 task_data = task->dd_data;
1827 memset(task_data, 0, sizeof(struct ql4_task_data));
1828
1829 if (task->sc) {
1830 ql4_printk(KERN_INFO, ha,
1831 "%s: SCSI Commands not implemented\n", __func__);
1832 return -EINVAL;
1833 }
1834
1835 hdr_len = sizeof(struct iscsi_hdr);
1836 task_data->ha = ha;
1837 task_data->task = task;
1838
1839 if (task->data_count) {
1840 task_data->data_dma = dma_map_single(&ha->pdev->dev, task->data,
1841 task->data_count,
1842 PCI_DMA_TODEVICE);
1843 }
1844
1845 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n",
1846 __func__, task->conn->max_recv_dlength, hdr_len));
1847
69ca216e 1848 task_data->resp_len = task->conn->max_recv_dlength + hdr_len;
b3a271a9
MR		 1849 task_data->resp_buffer = dma_alloc_coherent(&ha->pdev->dev,
1850 task_data->resp_len,
1851 &task_data->resp_dma,
1852 GFP_ATOMIC);
1853 if (!task_data->resp_buffer)
1854 goto exit_alloc_pdu;
1855
69ca216e 1856 task_data->req_len = task->data_count + hdr_len;
b3a271a9 1857 task_data->req_buffer = dma_alloc_coherent(&ha->pdev->dev,
69ca216e 1858 task_data->req_len,
b3a271a9
MR		 1859 &task_data->req_dma,
1860 GFP_ATOMIC);
1861 if (!task_data->req_buffer)
1862 goto exit_alloc_pdu;
1863
1864 task->hdr = task_data->req_buffer;
1865
1866 INIT_WORK(&task_data->task_work, qla4xxx_task_work);
1867
1868 return 0;
1869
1870exit_alloc_pdu:
1871 if (task_data->resp_buffer)
1872 dma_free_coherent(&ha->pdev->dev, task_data->resp_len,
1873 task_data->resp_buffer, task_data->resp_dma);
1874
1875 if (task_data->req_buffer)
69ca216e 1876 dma_free_coherent(&ha->pdev->dev, task_data->req_len,
b3a271a9
MR		 1877 task_data->req_buffer, task_data->req_dma);
1878 return -ENOMEM;
1879}
1880
1881static void qla4xxx_task_cleanup(struct iscsi_task *task)
1882{
1883 struct ql4_task_data *task_data;
1884 struct iscsi_session *sess;
1885 struct ddb_entry *ddb_entry;
1886 struct scsi_qla_host *ha;
1887 int hdr_len;
1888
1889 hdr_len = sizeof(struct iscsi_hdr);
1890 sess = task->conn->session;
1891 ddb_entry = sess->dd_data;
1892 ha = ddb_entry->ha;
1893 task_data = task->dd_data;
1894
1895 if (task->data_count) {
1896 dma_unmap_single(&ha->pdev->dev, task_data->data_dma,
1897 task->data_count, PCI_DMA_TODEVICE);
1898 }
1899
1900 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n",
1901 __func__, task->conn->max_recv_dlength, hdr_len));
1902
1903 dma_free_coherent(&ha->pdev->dev, task_data->resp_len,
1904 task_data->resp_buffer, task_data->resp_dma);
69ca216e 1905 dma_free_coherent(&ha->pdev->dev, task_data->req_len,
b3a271a9
MR		 1906 task_data->req_buffer, task_data->req_dma);
1907 return;
1908}
1909
1910static int qla4xxx_task_xmit(struct iscsi_task *task)
1911{
1912 struct scsi_cmnd *sc = task->sc;
1913 struct iscsi_session *sess = task->conn->session;
1914 struct ddb_entry *ddb_entry = sess->dd_data;
1915 struct scsi_qla_host *ha = ddb_entry->ha;
1916
1917 if (!sc)
1918 return qla4xxx_send_passthru0(task);
1919
1920 ql4_printk(KERN_INFO, ha, "%s: scsi cmd xmit not implemented\n",
1921 __func__);
1922 return -ENOSYS;
1923}
1924
13483730
MC		 1925static void qla4xxx_copy_fwddb_param(struct scsi_qla_host *ha,
1926 struct dev_db_entry *fw_ddb_entry,
1927 struct iscsi_cls_session *cls_sess,
1928 struct iscsi_cls_conn *cls_conn)
1929{
1930 int buflen = 0;
1931 struct iscsi_session *sess;
376738af 1932 struct ddb_entry *ddb_entry;
13483730
MC		 1933 struct iscsi_conn *conn;
1934 char ip_addr[DDB_IPADDR_LEN];
1935 uint16_t options = 0;
1936
1937 sess = cls_sess->dd_data;
376738af 1938 ddb_entry = sess->dd_data;
13483730
MC		 1939 conn = cls_conn->dd_data;
1940
376738af
NJ		 1941 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
1942
13483730
MC		 1943 conn->max_recv_dlength = BYTE_UNITS *
1944 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len);
1945
1946 conn->max_xmit_dlength = BYTE_UNITS *
1947 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len);
1948
1949 sess->initial_r2t_en =
1950 (BIT_10 & le16_to_cpu(fw_ddb_entry->iscsi_options));
1951
1952 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t);
1953
1954 sess->imm_data_en = (BIT_11 & le16_to_cpu(fw_ddb_entry->iscsi_options));
1955
1956 sess->first_burst = BYTE_UNITS *
1957 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len);
1958
1959 sess->max_burst = BYTE_UNITS *
1960 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len);
1961
1962 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
1963
1964 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain);
1965
1966 conn->persistent_port = le16_to_cpu(fw_ddb_entry->port);
1967
1968 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
1969
1970 options = le16_to_cpu(fw_ddb_entry->options);
1971 if (options & DDB_OPT_IPV6_DEVICE)
1972 sprintf(ip_addr, "%pI6", fw_ddb_entry->ip_addr);
1973 else
1974 sprintf(ip_addr, "%pI4", fw_ddb_entry->ip_addr);
1975
1976 iscsi_set_param(cls_conn, ISCSI_PARAM_TARGET_NAME,
1977 (char *)fw_ddb_entry->iscsi_name, buflen);
1978 iscsi_set_param(cls_conn, ISCSI_PARAM_INITIATOR_NAME,
1979 (char *)ha->name_string, buflen);
1980 iscsi_set_param(cls_conn, ISCSI_PARAM_PERSISTENT_ADDRESS,
1981 (char *)ip_addr, buflen);
6c1b8789
VC		 1982 iscsi_set_param(cls_conn, ISCSI_PARAM_TARGET_ALIAS,
1983 (char *)fw_ddb_entry->iscsi_alias, buflen);
13483730
MC		 1984}
1985
1986void qla4xxx_update_session_conn_fwddb_param(struct scsi_qla_host *ha,
1987 struct ddb_entry *ddb_entry)
1988{
1989 struct iscsi_cls_session *cls_sess;
1990 struct iscsi_cls_conn *cls_conn;
1991 uint32_t ddb_state;
1992 dma_addr_t fw_ddb_entry_dma;
1993 struct dev_db_entry *fw_ddb_entry;
1994
1995 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
1996 &fw_ddb_entry_dma, GFP_KERNEL);
1997 if (!fw_ddb_entry) {
1998 ql4_printk(KERN_ERR, ha,
1999 "%s: Unable to allocate dma buffer\n", __func__);
2000 goto exit_session_conn_fwddb_param;
2001 }
2002
2003 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry,
2004 fw_ddb_entry_dma, NULL, NULL, &ddb_state,
2005 NULL, NULL, NULL) == QLA_ERROR) {
2006 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
2007 "get_ddb_entry for fw_ddb_index %d\n",
2008 ha->host_no, __func__,
2009 ddb_entry->fw_ddb_index));
2010 goto exit_session_conn_fwddb_param;
2011 }
2012
2013 cls_sess = ddb_entry->sess;
2014
2015 cls_conn = ddb_entry->conn;
2016
2017 /* Update params */
2018 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn);
2019
2020exit_session_conn_fwddb_param:
2021 if (fw_ddb_entry)
2022 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
2023 fw_ddb_entry, fw_ddb_entry_dma);
2024}
2025
b3a271a9
MR		 2026void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha,
2027 struct ddb_entry *ddb_entry)
2028{
2029 struct iscsi_cls_session *cls_sess;
2030 struct iscsi_cls_conn *cls_conn;
2031 struct iscsi_session *sess;
2032 struct iscsi_conn *conn;
2033 uint32_t ddb_state;
2034 dma_addr_t fw_ddb_entry_dma;
2035 struct dev_db_entry *fw_ddb_entry;
2036
2037 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
2038 &fw_ddb_entry_dma, GFP_KERNEL);
2039 if (!fw_ddb_entry) {
2040 ql4_printk(KERN_ERR, ha,
2041 "%s: Unable to allocate dma buffer\n", __func__);
13483730 2042 goto exit_session_conn_param;
b3a271a9
MR		 2043 }
2044
2045 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry,
2046 fw_ddb_entry_dma, NULL, NULL, &ddb_state,
2047 NULL, NULL, NULL) == QLA_ERROR) {
2048 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
2049 "get_ddb_entry for fw_ddb_index %d\n",
2050 ha->host_no, __func__,
2051 ddb_entry->fw_ddb_index));
13483730 2052 goto exit_session_conn_param;
b3a271a9
MR		 2053 }
2054
2055 cls_sess = ddb_entry->sess;
2056 sess = cls_sess->dd_data;
2057
2058 cls_conn = ddb_entry->conn;
2059 conn = cls_conn->dd_data;
2060
13483730
MC		 2061 /* Update timers after login */
2062 ddb_entry->default_relogin_timeout =
c28eaaca
NJ		 2063 (le16_to_cpu(fw_ddb_entry->def_timeout) > LOGIN_TOV) &&
2064 (le16_to_cpu(fw_ddb_entry->def_timeout) < LOGIN_TOV * 10) ?
2065 le16_to_cpu(fw_ddb_entry->def_timeout) : LOGIN_TOV;
13483730
MC		 2066 ddb_entry->default_time2wait =
2067 le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
2068
b3a271a9 2069 /* Update params */
376738af 2070 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
b3a271a9
MR		 2071 conn->max_recv_dlength = BYTE_UNITS *
2072 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len);
2073
2074 conn->max_xmit_dlength = BYTE_UNITS *
2075 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len);
2076
2077 sess->initial_r2t_en =
2078 (BIT_10 & le16_to_cpu(fw_ddb_entry->iscsi_options));
2079
2080 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t);
2081
2082 sess->imm_data_en = (BIT_11 & le16_to_cpu(fw_ddb_entry->iscsi_options));
2083
2084 sess->first_burst = BYTE_UNITS *
2085 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len);
2086
2087 sess->max_burst = BYTE_UNITS *
2088 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len);
2089
2090 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
2091
2092 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain);
2093
2094 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
2095
2096 memcpy(sess->initiatorname, ha->name_string,
2097 min(sizeof(ha->name_string), sizeof(sess->initiatorname)));
13483730 2098
6c1b8789
VC		 2099 iscsi_set_param(cls_conn, ISCSI_PARAM_TARGET_ALIAS,
2100 (char *)fw_ddb_entry->iscsi_alias, 0);
2101
13483730
MC		 2102exit_session_conn_param:
2103 if (fw_ddb_entry)
2104 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
2105 fw_ddb_entry, fw_ddb_entry_dma);
b3a271a9
MR		 2106}
2107
afaf5a2d
DS		 2108/*
2109 * Timer routines
2110 */
2111
2112static void qla4xxx_start_timer(struct scsi_qla_host *ha, void *func,
2113 unsigned long interval)
2114{
2115 DEBUG(printk("scsi: %s: Starting timer thread for adapter %d\n",
2116 __func__, ha->host->host_no));
2117 init_timer(&ha->timer);
2118 ha->timer.expires = jiffies + interval * HZ;
2119 ha->timer.data = (unsigned long)ha;
2120 ha->timer.function = (void (*)(unsigned long))func;
2121 add_timer(&ha->timer);
2122 ha->timer_active = 1;
2123}
2124
2125static void qla4xxx_stop_timer(struct scsi_qla_host *ha)
2126{
2127 del_timer_sync(&ha->timer);
2128 ha->timer_active = 0;
2129}
2130
2131/***
b3a271a9
MR		 2132 * qla4xxx_mark_device_missing - blocks the session
2133 * @cls_session: Pointer to the session to be blocked
afaf5a2d
DS		 2134 * @ddb_entry: Pointer to device database entry
2135 *
f4f5df23 2136 * This routine marks a device missing and close connection.
afaf5a2d 2137 **/
b3a271a9 2138void qla4xxx_mark_device_missing(struct iscsi_cls_session *cls_session)
afaf5a2d 2139{
b3a271a9 2140 iscsi_block_session(cls_session);
afaf5a2d
DS		 2141}
2142
f4f5df23
VC		 2143/**
2144 * qla4xxx_mark_all_devices_missing - mark all devices as missing.
2145 * @ha: Pointer to host adapter structure.
2146 *
2147 * This routine marks a device missing and resets the relogin retry count.
2148 **/
2149void qla4xxx_mark_all_devices_missing(struct scsi_qla_host *ha)
2150{
b3a271a9 2151 iscsi_host_for_each_session(ha->host, qla4xxx_mark_device_missing);
f4f5df23
VC		 2152}
2153
afaf5a2d
DS		 2154static struct srb* qla4xxx_get_new_srb(struct scsi_qla_host *ha,
2155 struct ddb_entry *ddb_entry,
8f0722ca 2156 struct scsi_cmnd *cmd)
afaf5a2d
DS		 2157{
2158 struct srb *srb;
2159
2160 srb = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
2161 if (!srb)
2162 return srb;
2163
09a0f719 2164 kref_init(&srb->srb_ref);
afaf5a2d
DS		 2165 srb->ha = ha;
2166 srb->ddb = ddb_entry;
2167 srb->cmd = cmd;
2168 srb->flags = 0;
5369887a 2169 CMD_SP(cmd) = (void *)srb;
afaf5a2d
DS		 2170
2171 return srb;
2172}
2173
2174static void qla4xxx_srb_free_dma(struct scsi_qla_host *ha, struct srb *srb)
2175{
2176 struct scsi_cmnd *cmd = srb->cmd;
2177
2178 if (srb->flags & SRB_DMA_VALID) {
5f7186c8 2179 scsi_dma_unmap(cmd);
afaf5a2d
DS		 2180 srb->flags &= ~SRB_DMA_VALID;
2181 }
5369887a 2182 CMD_SP(cmd) = NULL;
afaf5a2d
DS		 2183}
2184
09a0f719 2185void qla4xxx_srb_compl(struct kref *ref)
afaf5a2d 2186{
09a0f719 2187 struct srb *srb = container_of(ref, struct srb, srb_ref);
afaf5a2d 2188 struct scsi_cmnd *cmd = srb->cmd;
09a0f719 2189 struct scsi_qla_host *ha = srb->ha;
afaf5a2d
DS		 2190
2191 qla4xxx_srb_free_dma(ha, srb);
2192
2193 mempool_free(srb, ha->srb_mempool);
2194
2195 cmd->scsi_done(cmd);
2196}
2197
2198/**
2199 * qla4xxx_queuecommand - scsi layer issues scsi command to driver.
8f0722ca 2200 * @host: scsi host
afaf5a2d 2201 * @cmd: Pointer to Linux's SCSI command structure
afaf5a2d
DS		 2202 *
2203 * Remarks:
2204 * This routine is invoked by Linux to send a SCSI command to the driver.
2205 * The mid-level driver tries to ensure that queuecommand never gets
2206 * invoked concurrently with itself or the interrupt handler (although
2207 * the interrupt handler may call this routine as part of request-
2208 * completion handling). Unfortunely, it sometimes calls the scheduler
2209 * in interrupt context which is a big NO! NO!.
2210 **/
8f0722ca 2211static int qla4xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
afaf5a2d 2212{
8f0722ca 2213 struct scsi_qla_host *ha = to_qla_host(host);
afaf5a2d 2214 struct ddb_entry *ddb_entry = cmd->device->hostdata;
7fb1921b 2215 struct iscsi_cls_session *sess = ddb_entry->sess;
afaf5a2d
DS		 2216 struct srb *srb;
2217 int rval;
2218
2232be0d
LC		 2219 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
2220 if (test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags))
2221 cmd->result = DID_NO_CONNECT << 16;
2222 else
2223 cmd->result = DID_REQUEUE << 16;
2224 goto qc_fail_command;
2225 }
2226
7fb1921b
MC		 2227 if (!sess) {
2228 cmd->result = DID_IMM_RETRY << 16;
2229 goto qc_fail_command;
2230 }
2231
2232 rval = iscsi_session_chkready(sess);
2233 if (rval) {
2234 cmd->result = rval;
2235 goto qc_fail_command;
2236 }
2237
f4f5df23
VC		 2238 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
2239 test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) ||
2240 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
2241 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) ||
2242 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) ||
2243 !test_bit(AF_ONLINE, &ha->flags) ||
b3a271a9 2244 !test_bit(AF_LINK_UP, &ha->flags) ||
026fbd3a 2245 test_bit(AF_LOOPBACK, &ha->flags) ||
f4f5df23 2246 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))
477ffb9d
DS		 2247 goto qc_host_busy;
2248
8f0722ca 2249 srb = qla4xxx_get_new_srb(ha, ddb_entry, cmd);
afaf5a2d 2250 if (!srb)
8f0722ca 2251 goto qc_host_busy;
afaf5a2d
DS		 2252
2253 rval = qla4xxx_send_command_to_isp(ha, srb);
2254 if (rval != QLA_SUCCESS)
2255 goto qc_host_busy_free_sp;
2256
afaf5a2d
DS		 2257 return 0;
2258
2259qc_host_busy_free_sp:
2260 qla4xxx_srb_free_dma(ha, srb);
2261 mempool_free(srb, ha->srb_mempool);
2262
afaf5a2d
DS		 2263qc_host_busy:
2264 return SCSI_MLQUEUE_HOST_BUSY;
2265
2266qc_fail_command:
8f0722ca 2267 cmd->scsi_done(cmd);
afaf5a2d
DS		 2268
2269 return 0;
2270}
2271
2272/**
2273 * qla4xxx_mem_free - frees memory allocated to adapter
2274 * @ha: Pointer to host adapter structure.
2275 *
2276 * Frees memory previously allocated by qla4xxx_mem_alloc
2277 **/
2278static void qla4xxx_mem_free(struct scsi_qla_host *ha)
2279{
2280 if (ha->queues)
2281 dma_free_coherent(&ha->pdev->dev, ha->queues_len, ha->queues,
2282 ha->queues_dma);
2283
068237c8
TP		 2284 if (ha->fw_dump)
2285 vfree(ha->fw_dump);
2286
afaf5a2d
DS		 2287 ha->queues_len = 0;
2288 ha->queues = NULL;
2289 ha->queues_dma = 0;
2290 ha->request_ring = NULL;
2291 ha->request_dma = 0;
2292 ha->response_ring = NULL;
2293 ha->response_dma = 0;
2294 ha->shadow_regs = NULL;
2295 ha->shadow_regs_dma = 0;
068237c8
TP		 2296 ha->fw_dump = NULL;
2297 ha->fw_dump_size = 0;
afaf5a2d
DS		 2298
2299 /* Free srb pool. */
2300 if (ha->srb_mempool)
2301 mempool_destroy(ha->srb_mempool);
2302
2303 ha->srb_mempool = NULL;
2304
b3a271a9
MR		 2305 if (ha->chap_dma_pool)
2306 dma_pool_destroy(ha->chap_dma_pool);
2307
4549415a
LC		 2308 if (ha->chap_list)
2309 vfree(ha->chap_list);
2310 ha->chap_list = NULL;
2311
13483730
MC		 2312 if (ha->fw_ddb_dma_pool)
2313 dma_pool_destroy(ha->fw_ddb_dma_pool);
2314
afaf5a2d 2315 /* release io space registers */
f4f5df23
VC		 2316 if (is_qla8022(ha)) {
2317 if (ha->nx_pcibase)
2318 iounmap(
2319 (struct device_reg_82xx __iomem *)ha->nx_pcibase);
6e7b4292
VC		 2320 } else if (is_qla8032(ha)) {
2321 if (ha->nx_pcibase)
2322 iounmap(
2323 (struct device_reg_83xx __iomem *)ha->nx_pcibase);
2324 } else if (ha->reg) {
afaf5a2d 2325 iounmap(ha->reg);
6e7b4292
VC		 2326 }
2327
2328 if (ha->reset_tmplt.buff)
2329 vfree(ha->reset_tmplt.buff);
2330
afaf5a2d
DS		 2331 pci_release_regions(ha->pdev);
2332}
2333
2334/**
2335 * qla4xxx_mem_alloc - allocates memory for use by adapter.
2336 * @ha: Pointer to host adapter structure
2337 *
2338 * Allocates DMA memory for request and response queues. Also allocates memory
2339 * for srbs.
2340 **/
2341static int qla4xxx_mem_alloc(struct scsi_qla_host *ha)
2342{
2343 unsigned long align;
2344
2345 /* Allocate contiguous block of DMA memory for queues. */
2346 ha->queues_len = ((REQUEST_QUEUE_DEPTH * QUEUE_SIZE) +
2347 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE) +
2348 sizeof(struct shadow_regs) +
2349 MEM_ALIGN_VALUE +
2350 (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
2351 ha->queues = dma_alloc_coherent(&ha->pdev->dev, ha->queues_len,
2352 &ha->queues_dma, GFP_KERNEL);
2353 if (ha->queues == NULL) {
c2660df3
VC		 2354 ql4_printk(KERN_WARNING, ha,
2355 "Memory Allocation failed - queues.\n");
afaf5a2d
DS		 2356
2357 goto mem_alloc_error_exit;
2358 }
2359 memset(ha->queues, 0, ha->queues_len);
2360
2361 /*
2362 * As per RISC alignment requirements -- the bus-address must be a
2363 * multiple of the request-ring size (in bytes).
2364 */
2365 align = 0;
2366 if ((unsigned long)ha->queues_dma & (MEM_ALIGN_VALUE - 1))
2367 align = MEM_ALIGN_VALUE - ((unsigned long)ha->queues_dma &
2368 (MEM_ALIGN_VALUE - 1));
2369
2370 /* Update request and response queue pointers. */
2371 ha->request_dma = ha->queues_dma + align;
2372 ha->request_ring = (struct queue_entry *) (ha->queues + align);
2373 ha->response_dma = ha->queues_dma + align +
2374 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE);
2375 ha->response_ring = (struct queue_entry *) (ha->queues + align +
2376 (REQUEST_QUEUE_DEPTH *
2377 QUEUE_SIZE));
2378 ha->shadow_regs_dma = ha->queues_dma + align +
2379 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE) +
2380 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE);
2381 ha->shadow_regs = (struct shadow_regs *) (ha->queues + align +
2382 (REQUEST_QUEUE_DEPTH *
2383 QUEUE_SIZE) +
2384 (RESPONSE_QUEUE_DEPTH *
2385 QUEUE_SIZE));
2386
2387 /* Allocate memory for srb pool. */
2388 ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab,
2389 mempool_free_slab, srb_cachep);
2390 if (ha->srb_mempool == NULL) {
c2660df3
VC		 2391 ql4_printk(KERN_WARNING, ha,
2392 "Memory Allocation failed - SRB Pool.\n");
afaf5a2d
DS		 2393
2394 goto mem_alloc_error_exit;
2395 }
2396
b3a271a9
MR		 2397 ha->chap_dma_pool = dma_pool_create("ql4_chap", &ha->pdev->dev,
2398 CHAP_DMA_BLOCK_SIZE, 8, 0);
2399
2400 if (ha->chap_dma_pool == NULL) {
2401 ql4_printk(KERN_WARNING, ha,
2402 "%s: chap_dma_pool allocation failed..\n", __func__);
2403 goto mem_alloc_error_exit;
2404 }
2405
13483730
MC		 2406 ha->fw_ddb_dma_pool = dma_pool_create("ql4_fw_ddb", &ha->pdev->dev,
2407 DDB_DMA_BLOCK_SIZE, 8, 0);
2408
2409 if (ha->fw_ddb_dma_pool == NULL) {
2410 ql4_printk(KERN_WARNING, ha,
2411 "%s: fw_ddb_dma_pool allocation failed..\n",
2412 __func__);
2413 goto mem_alloc_error_exit;
2414 }
2415
afaf5a2d
DS		 2416 return QLA_SUCCESS;
2417
2418mem_alloc_error_exit:
2419 qla4xxx_mem_free(ha);
2420 return QLA_ERROR;
2421}
2422
4f77083e
MH		 2423/**
2424 * qla4_8xxx_check_temp - Check the ISP82XX temperature.
2425 * @ha: adapter block pointer.
2426 *
2427 * Note: The caller should not hold the idc lock.
2428 **/
2429static int qla4_8xxx_check_temp(struct scsi_qla_host *ha)
2430{
2431 uint32_t temp, temp_state, temp_val;
2432 int status = QLA_SUCCESS;
2433
33693c7a 2434 temp = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_TEMP_STATE);
4f77083e
MH		 2435
2436 temp_state = qla82xx_get_temp_state(temp);
2437 temp_val = qla82xx_get_temp_val(temp);
2438
2439 if (temp_state == QLA82XX_TEMP_PANIC) {
2440 ql4_printk(KERN_WARNING, ha, "Device temperature %d degrees C"
2441 " exceeds maximum allowed. Hardware has been shut"
2442 " down.\n", temp_val);
2443 status = QLA_ERROR;
2444 } else if (temp_state == QLA82XX_TEMP_WARN) {
2445 if (ha->temperature == QLA82XX_TEMP_NORMAL)
2446 ql4_printk(KERN_WARNING, ha, "Device temperature %d"
2447 " degrees C exceeds operating range."
2448 " Immediate action needed.\n", temp_val);
2449 } else {
2450 if (ha->temperature == QLA82XX_TEMP_WARN)
2451 ql4_printk(KERN_INFO, ha, "Device temperature is"
2452 " now %d degrees C in normal range.\n",
2453 temp_val);
2454 }
2455 ha->temperature = temp_state;
2456 return status;
2457}
2458
f4f5df23
VC		 2459/**
2460 * qla4_8xxx_check_fw_alive - Check firmware health
2461 * @ha: Pointer to host adapter structure.
2462 *
2463 * Context: Interrupt
2464 **/
9ee91a38 2465static int qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha)
f4f5df23 2466{
9ee91a38
SS		 2467 uint32_t fw_heartbeat_counter;
2468 int status = QLA_SUCCESS;
f4f5df23 2469
33693c7a
VC		 2470 fw_heartbeat_counter = qla4_8xxx_rd_direct(ha,
2471 QLA8XXX_PEG_ALIVE_COUNTER);
2232be0d
LC		 2472 /* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */
2473 if (fw_heartbeat_counter == 0xffffffff) {
2474 DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Device in frozen "
2475 "state, QLA82XX_PEG_ALIVE_COUNTER is 0xffffffff\n",
2476 ha->host_no, __func__));
9ee91a38 2477 return status;
2232be0d 2478 }
f4f5df23
VC		 2479
2480 if (ha->fw_heartbeat_counter == fw_heartbeat_counter) {
2481 ha->seconds_since_last_heartbeat++;
2482 /* FW not alive after 2 seconds */
2483 if (ha->seconds_since_last_heartbeat == 2) {
2484 ha->seconds_since_last_heartbeat = 0;
6e7b4292 2485 qla4_8xxx_dump_peg_reg(ha);
9ee91a38 2486 status = QLA_ERROR;
f4f5df23 2487 }
99457d75
LC		 2488 } else
2489 ha->seconds_since_last_heartbeat = 0;
2490
f4f5df23 2491 ha->fw_heartbeat_counter = fw_heartbeat_counter;
9ee91a38 2492 return status;
f4f5df23
VC		 2493}
2494
6e7b4292
VC		 2495static void qla4_8xxx_process_fw_error(struct scsi_qla_host *ha)
2496{
2497 uint32_t halt_status;
2498 int halt_status_unrecoverable = 0;
2499
2500 halt_status = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_HALT_STATUS1);
2501
2502 if (is_qla8022(ha)) {
2503 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
2504 __func__);
2505 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
2506 CRB_NIU_XG_PAUSE_CTL_P0 |
2507 CRB_NIU_XG_PAUSE_CTL_P1);
2508
2509 if (QLA82XX_FWERROR_CODE(halt_status) == 0x67)
2510 ql4_printk(KERN_ERR, ha, "%s: Firmware aborted with error code 0x00006700. Device is being reset\n",
2511 __func__);
2512 if (halt_status & HALT_STATUS_UNRECOVERABLE)
2513 halt_status_unrecoverable = 1;
2514 } else if (is_qla8032(ha)) {
2515 if (halt_status & QLA83XX_HALT_STATUS_FW_RESET)
2516 ql4_printk(KERN_ERR, ha, "%s: Firmware error detected device is being reset\n",
2517 __func__);
2518 else if (halt_status & QLA83XX_HALT_STATUS_UNRECOVERABLE)
2519 halt_status_unrecoverable = 1;
2520 }
2521
2522 /*
2523 * Since we cannot change dev_state in interrupt context,
2524 * set appropriate DPC flag then wakeup DPC
2525 */
2526 if (halt_status_unrecoverable) {
2527 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags);
2528 } else {
2529 ql4_printk(KERN_INFO, ha, "%s: detect abort needed!\n",
2530 __func__);
2531 set_bit(DPC_RESET_HA, &ha->dpc_flags);
2532 }
2533 qla4xxx_mailbox_premature_completion(ha);
2534 qla4xxx_wake_dpc(ha);
2535}
2536
f4f5df23
VC		 2537/**
2538 * qla4_8xxx_watchdog - Poll dev state
2539 * @ha: Pointer to host adapter structure.
2540 *
2541 * Context: Interrupt
2542 **/
2543void qla4_8xxx_watchdog(struct scsi_qla_host *ha)
2544{
6e7b4292 2545 uint32_t dev_state;
6cf94121 2546 uint32_t idc_ctrl;
f4f5df23
VC		 2547
2548 /* don't poll if reset is going on */
d56a1f7b
LC		 2549 if (!(test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) ||
2550 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
977f46a4 2551 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags))) {
33693c7a 2552 dev_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE);
4f77083e
MH		 2553
2554 if (qla4_8xxx_check_temp(ha)) {
6e7b4292
VC		 2555 if (is_qla8022(ha)) {
2556 ql4_printk(KERN_INFO, ha, "disabling pause transmit on port 0 & 1.\n");
2557 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
2558 CRB_NIU_XG_PAUSE_CTL_P0 |
2559 CRB_NIU_XG_PAUSE_CTL_P1);
2560 }
4f77083e
MH		 2561 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags);
2562 qla4xxx_wake_dpc(ha);
de8c72da 2563 } else if (dev_state == QLA8XXX_DEV_NEED_RESET &&
6e7b4292 2564 !test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
6cf94121
VC		 2565
2566 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED RESET!\n",
2567 __func__);
2568
2569 if (is_qla8032(ha)) {
2570 idc_ctrl = qla4_83xx_rd_reg(ha,
2571 QLA83XX_IDC_DRV_CTRL);
2572 if (!(idc_ctrl & GRACEFUL_RESET_BIT1)) {
2573 ql4_printk(KERN_INFO, ha, "%s: Graceful reset bit is not set\n",
2574 __func__);
2575 qla4xxx_mailbox_premature_completion(
2576 ha);
2577 }
2578 }
2579
6e7b4292
VC		 2580 if (is_qla8032(ha) ||
2581 (is_qla8022(ha) && !ql4xdontresethba)) {
3930b8c1
VC		 2582 set_bit(DPC_RESET_HA, &ha->dpc_flags);
2583 qla4xxx_wake_dpc(ha);
3930b8c1 2584 }
de8c72da 2585 } else if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT &&
f4f5df23 2586 !test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) {
3930b8c1
VC		 2587 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED QUIES!\n",
2588 __func__);
f4f5df23
VC		 2589 set_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags);
2590 qla4xxx_wake_dpc(ha);
2591 } else {
2592 /* Check firmware health */
6e7b4292
VC		 2593 if (qla4_8xxx_check_fw_alive(ha))
2594 qla4_8xxx_process_fw_error(ha);
f4f5df23
VC		 2595 }
2596 }
2597}
2598
4a4bc2e9 2599static void qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)
13483730
MC		 2600{
2601 struct iscsi_session *sess;
2602 struct ddb_entry *ddb_entry;
2603 struct scsi_qla_host *ha;
2604
2605 sess = cls_sess->dd_data;
2606 ddb_entry = sess->dd_data;
2607 ha = ddb_entry->ha;
2608
2609 if (!(ddb_entry->ddb_type == FLASH_DDB))
2610 return;
2611
2612 if (adapter_up(ha) && !test_bit(DF_RELOGIN, &ddb_entry->flags) &&
2613 !iscsi_is_session_online(cls_sess)) {
2614 if (atomic_read(&ddb_entry->retry_relogin_timer) !=
2615 INVALID_ENTRY) {
2616 if (atomic_read(&ddb_entry->retry_relogin_timer) ==
2617 0) {
2618 atomic_set(&ddb_entry->retry_relogin_timer,
2619 INVALID_ENTRY);
2620 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
2621 set_bit(DF_RELOGIN, &ddb_entry->flags);
2622 DEBUG2(ql4_printk(KERN_INFO, ha,
2623 "%s: index [%d] login device\n",
2624 __func__, ddb_entry->fw_ddb_index));
2625 } else
2626 atomic_dec(&ddb_entry->retry_relogin_timer);
2627 }
2628 }
2629
2630 /* Wait for relogin to timeout */
2631 if (atomic_read(&ddb_entry->relogin_timer) &&
2632 (atomic_dec_and_test(&ddb_entry->relogin_timer) != 0)) {
2633 /*
2634 * If the relogin times out and the device is
2635 * still NOT ONLINE then try and relogin again.
2636 */
2637 if (!iscsi_is_session_online(cls_sess)) {
2638 /* Reset retry relogin timer */
2639 atomic_inc(&ddb_entry->relogin_retry_count);
2640 DEBUG2(ql4_printk(KERN_INFO, ha,
2641 "%s: index[%d] relogin timed out-retrying"
2642 " relogin (%d), retry (%d)\n", __func__,
2643 ddb_entry->fw_ddb_index,
2644 atomic_read(&ddb_entry->relogin_retry_count),
2645 ddb_entry->default_time2wait + 4));
2646 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
2647 atomic_set(&ddb_entry->retry_relogin_timer,
2648 ddb_entry->default_time2wait + 4);
2649 }
2650 }
2651}
2652
afaf5a2d
DS		 2653/**
2654 * qla4xxx_timer - checks every second for work to do.
2655 * @ha: Pointer to host adapter structure.
2656 **/
2657static void qla4xxx_timer(struct scsi_qla_host *ha)
2658{
afaf5a2d 2659 int start_dpc = 0;
2232be0d
LC		 2660 uint16_t w;
2661
13483730
MC		 2662 iscsi_host_for_each_session(ha->host, qla4xxx_check_relogin_flash_ddb);
2663
2232be0d
LC		 2664 /* If we are in the middle of AER/EEH processing
2665 * skip any processing and reschedule the timer
2666 */
2667 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
2668 mod_timer(&ha->timer, jiffies + HZ);
2669 return;
2670 }
2671
2672 /* Hardware read to trigger an EEH error during mailbox waits. */
2673 if (!pci_channel_offline(ha->pdev))
2674 pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
afaf5a2d 2675
6e7b4292 2676 if (is_qla80XX(ha))
f4f5df23 2677 qla4_8xxx_watchdog(ha);
f4f5df23 2678
ee996a69 2679 if (is_qla40XX(ha)) {
f4f5df23
VC		 2680 /* Check for heartbeat interval. */
2681 if (ha->firmware_options & FWOPT_HEARTBEAT_ENABLE &&
2682 ha->heartbeat_interval != 0) {
2683 ha->seconds_since_last_heartbeat++;
2684 if (ha->seconds_since_last_heartbeat >
2685 ha->heartbeat_interval + 2)
2686 set_bit(DPC_RESET_HA, &ha->dpc_flags);
2687 }
afaf5a2d
DS		 2688 }
2689
ff884430
VC		 2690 /* Process any deferred work. */
2691 if (!list_empty(&ha->work_list))
2692 start_dpc++;
2693
afaf5a2d 2694 /* Wakeup the dpc routine for this adapter, if needed. */
1b46807e 2695 if (start_dpc ||
afaf5a2d
DS		 2696 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
2697 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags) ||
2698 test_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags) ||
f4f5df23 2699 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) ||
afaf5a2d
DS		 2700 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
2701 test_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags) ||
065aa1b4 2702 test_bit(DPC_LINK_CHANGED, &ha->dpc_flags) ||
f4f5df23
VC		 2703 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) ||
2704 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) ||
1b46807e 2705 test_bit(DPC_AEN, &ha->dpc_flags)) {
afaf5a2d
DS		 2706 DEBUG2(printk("scsi%ld: %s: scheduling dpc routine"
2707 " - dpc flags = 0x%lx\n",
2708 ha->host_no, __func__, ha->dpc_flags));
f4f5df23 2709 qla4xxx_wake_dpc(ha);
afaf5a2d
DS		 2710 }
2711
2712 /* Reschedule timer thread to call us back in one second */
2713 mod_timer(&ha->timer, jiffies + HZ);
2714
2715 DEBUG2(ha->seconds_since_last_intr++);
2716}
2717
2718/**
2719 * qla4xxx_cmd_wait - waits for all outstanding commands to complete
2720 * @ha: Pointer to host adapter structure.
2721 *
2722 * This routine stalls the driver until all outstanding commands are returned.
2723 * Caller must release the Hardware Lock prior to calling this routine.
2724 **/
2725static int qla4xxx_cmd_wait(struct scsi_qla_host *ha)
2726{
2727 uint32_t index = 0;
afaf5a2d
DS		 2728 unsigned long flags;
2729 struct scsi_cmnd *cmd;
afaf5a2d 2730
f4f5df23
VC		 2731 unsigned long wtime = jiffies + (WAIT_CMD_TOV * HZ);
2732
2733 DEBUG2(ql4_printk(KERN_INFO, ha, "Wait up to %d seconds for cmds to "
2734 "complete\n", WAIT_CMD_TOV));
2735
2736 while (!time_after_eq(jiffies, wtime)) {
afaf5a2d
DS		 2737 spin_lock_irqsave(&ha->hardware_lock, flags);
2738 /* Find a command that hasn't completed. */
2739 for (index = 0; index < ha->host->can_queue; index++) {
2740 cmd = scsi_host_find_tag(ha->host, index);
a1e0063d
MC		 2741 /*
2742 * We cannot just check if the index is valid,
2743 * becase if we are run from the scsi eh, then
2744 * the scsi/block layer is going to prevent
2745 * the tag from being released.
2746 */
2747 if (cmd != NULL && CMD_SP(cmd))
afaf5a2d
DS		 2748 break;
2749 }
2750 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2751
2752 /* If No Commands are pending, wait is complete */
f4f5df23
VC		 2753 if (index == ha->host->can_queue)
2754 return QLA_SUCCESS;
afaf5a2d 2755
f4f5df23
VC		 2756 msleep(1000);
2757 }
2758 /* If we timed out on waiting for commands to come back
2759 * return ERROR. */
2760 return QLA_ERROR;
afaf5a2d
DS		 2761}
2762
f4f5df23 2763int qla4xxx_hw_reset(struct scsi_qla_host *ha)
afaf5a2d 2764{
afaf5a2d 2765 uint32_t ctrl_status;
477ffb9d
DS		 2766 unsigned long flags = 0;
2767
2768 DEBUG2(printk(KERN_ERR "scsi%ld: %s\n", ha->host_no, __func__));
afaf5a2d 2769
f4f5df23
VC		 2770 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS)
2771 return QLA_ERROR;
2772
afaf5a2d
DS		 2773 spin_lock_irqsave(&ha->hardware_lock, flags);
2774
2775 /*
2776 * If the SCSI Reset Interrupt bit is set, clear it.
2777 * Otherwise, the Soft Reset won't work.
2778 */
2779 ctrl_status = readw(&ha->reg->ctrl_status);
2780 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0)
2781 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status);
2782
2783 /* Issue Soft Reset */
2784 writel(set_rmask(CSR_SOFT_RESET), &ha->reg->ctrl_status);
2785 readl(&ha->reg->ctrl_status);
2786
2787 spin_unlock_irqrestore(&ha->hardware_lock, flags);
f4f5df23 2788 return QLA_SUCCESS;
477ffb9d
DS		 2789}
2790
2791/**
2792 * qla4xxx_soft_reset - performs soft reset.
2793 * @ha: Pointer to host adapter structure.
2794 **/
2795int qla4xxx_soft_reset(struct scsi_qla_host *ha)
2796{
2797 uint32_t max_wait_time;
2798 unsigned long flags = 0;
f931c534 2799 int status;
477ffb9d
DS		 2800 uint32_t ctrl_status;
2801
f931c534
VC		 2802 status = qla4xxx_hw_reset(ha);
2803 if (status != QLA_SUCCESS)
2804 return status;
afaf5a2d 2805
f931c534 2806 status = QLA_ERROR;
afaf5a2d
DS		 2807 /* Wait until the Network Reset Intr bit is cleared */
2808 max_wait_time = RESET_INTR_TOV;
2809 do {
2810 spin_lock_irqsave(&ha->hardware_lock, flags);
2811 ctrl_status = readw(&ha->reg->ctrl_status);
2812 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2813
2814 if ((ctrl_status & CSR_NET_RESET_INTR) == 0)
2815 break;
2816
2817 msleep(1000);
2818 } while ((--max_wait_time));
2819
2820 if ((ctrl_status & CSR_NET_RESET_INTR) != 0) {
2821 DEBUG2(printk(KERN_WARNING
2822 "scsi%ld: Network Reset Intr not cleared by "
2823 "Network function, clearing it now!\n",
2824 ha->host_no));
2825 spin_lock_irqsave(&ha->hardware_lock, flags);
2826 writel(set_rmask(CSR_NET_RESET_INTR), &ha->reg->ctrl_status);
2827 readl(&ha->reg->ctrl_status);
2828 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2829 }
2830
2831 /* Wait until the firmware tells us the Soft Reset is done */
2832 max_wait_time = SOFT_RESET_TOV;
2833 do {
2834 spin_lock_irqsave(&ha->hardware_lock, flags);
2835 ctrl_status = readw(&ha->reg->ctrl_status);
2836 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2837
2838 if ((ctrl_status & CSR_SOFT_RESET) == 0) {
2839 status = QLA_SUCCESS;
2840 break;
2841 }
2842
2843 msleep(1000);
2844 } while ((--max_wait_time));
2845
2846 /*
2847 * Also, make sure that the SCSI Reset Interrupt bit has been cleared
2848 * after the soft reset has taken place.
2849 */
2850 spin_lock_irqsave(&ha->hardware_lock, flags);
2851 ctrl_status = readw(&ha->reg->ctrl_status);
2852 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) {
2853 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status);
2854 readl(&ha->reg->ctrl_status);
2855 }
2856 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2857
2858 /* If soft reset fails then most probably the bios on other
2859 * function is also enabled.
2860 * Since the initialization is sequential the other fn
2861 * wont be able to acknowledge the soft reset.
2862 * Issue a force soft reset to workaround this scenario.
2863 */
2864 if (max_wait_time == 0) {
2865 /* Issue Force Soft Reset */
2866 spin_lock_irqsave(&ha->hardware_lock, flags);
2867 writel(set_rmask(CSR_FORCE_SOFT_RESET), &ha->reg->ctrl_status);
2868 readl(&ha->reg->ctrl_status);
2869 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2870 /* Wait until the firmware tells us the Soft Reset is done */
2871 max_wait_time = SOFT_RESET_TOV;
2872 do {
2873 spin_lock_irqsave(&ha->hardware_lock, flags);
2874 ctrl_status = readw(&ha->reg->ctrl_status);
2875 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2876
2877 if ((ctrl_status & CSR_FORCE_SOFT_RESET) == 0) {
2878 status = QLA_SUCCESS;
2879 break;
2880 }
2881
2882 msleep(1000);
2883 } while ((--max_wait_time));
2884 }
2885
2886 return status;
2887}
2888
afaf5a2d 2889/**
f4f5df23 2890 * qla4xxx_abort_active_cmds - returns all outstanding i/o requests to O.S.
afaf5a2d 2891 * @ha: Pointer to host adapter structure.
f4f5df23 2892 * @res: returned scsi status
afaf5a2d
DS		 2893 *
2894 * This routine is called just prior to a HARD RESET to return all
2895 * outstanding commands back to the Operating System.
2896 * Caller should make sure that the following locks are released
2897 * before this calling routine: Hardware lock, and io_request_lock.
2898 **/
f4f5df23 2899static void qla4xxx_abort_active_cmds(struct scsi_qla_host *ha, int res)
afaf5a2d
DS		 2900{
2901 struct srb *srb;
2902 int i;
2903 unsigned long flags;
2904
2905 spin_lock_irqsave(&ha->hardware_lock, flags);
2906 for (i = 0; i < ha->host->can_queue; i++) {
2907 srb = qla4xxx_del_from_active_array(ha, i);
2908 if (srb != NULL) {
f4f5df23 2909 srb->cmd->result = res;
09a0f719 2910 kref_put(&srb->srb_ref, qla4xxx_srb_compl);
afaf5a2d
DS		 2911 }
2912 }
2913 spin_unlock_irqrestore(&ha->hardware_lock, flags);
afaf5a2d
DS		 2914}
2915
f4f5df23
VC		 2916void qla4xxx_dead_adapter_cleanup(struct scsi_qla_host *ha)
2917{
2918 clear_bit(AF_ONLINE, &ha->flags);
2919
2920 /* Disable the board */
2921 ql4_printk(KERN_INFO, ha, "Disabling the board\n");
f4f5df23
VC		 2922
2923 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
2924 qla4xxx_mark_all_devices_missing(ha);
2925 clear_bit(AF_INIT_DONE, &ha->flags);
2926}
2927
b3a271a9
MR		 2928static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session)
2929{
2930 struct iscsi_session *sess;
2931 struct ddb_entry *ddb_entry;
2932
2933 sess = cls_session->dd_data;
2934 ddb_entry = sess->dd_data;
2935 ddb_entry->fw_ddb_device_state = DDB_DS_SESSION_FAILED;
13483730
MC		 2936
2937 if (ddb_entry->ddb_type == FLASH_DDB)
2938 iscsi_block_session(ddb_entry->sess);
2939 else
2940 iscsi_session_failure(cls_session->dd_data,
2941 ISCSI_ERR_CONN_FAILED);
b3a271a9
MR		 2942}
2943
afaf5a2d
DS		 2944/**
2945 * qla4xxx_recover_adapter - recovers adapter after a fatal error
2946 * @ha: Pointer to host adapter structure.
afaf5a2d 2947 **/
f4f5df23 2948static int qla4xxx_recover_adapter(struct scsi_qla_host *ha)
afaf5a2d 2949{
f4f5df23
VC		 2950 int status = QLA_ERROR;
2951 uint8_t reset_chip = 0;
8e0f3a66 2952 uint32_t dev_state;
9ee91a38 2953 unsigned long wait;
afaf5a2d
DS		 2954
2955 /* Stall incoming I/O until we are done */
f4f5df23 2956 scsi_block_requests(ha->host);
afaf5a2d 2957 clear_bit(AF_ONLINE, &ha->flags);
b3a271a9 2958 clear_bit(AF_LINK_UP, &ha->flags);
50a29aec 2959
f4f5df23 2960 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: adapter OFFLINE\n", __func__));
afaf5a2d 2961
f4f5df23 2962 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
afaf5a2d 2963
546fef27
TP		 2964 if (is_qla8032(ha) &&
2965 !test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) {
2966 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
2967 __func__);
2968 /* disable pause frame for ISP83xx */
2969 qla4_83xx_disable_pause(ha);
2970 }
2971
b3a271a9
MR		 2972 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session);
2973
f4f5df23
VC		 2974 if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
2975 reset_chip = 1;
afaf5a2d 2976
f4f5df23
VC		 2977 /* For the DPC_RESET_HA_INTR case (ISP-4xxx specific)
2978 * do not reset adapter, jump to initialize_adapter */
2979 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
2980 status = QLA_SUCCESS;
2981 goto recover_ha_init_adapter;
2982 }
afaf5a2d 2983
6e7b4292 2984 /* For the ISP-8xxx adapter, issue a stop_firmware if invoked
f4f5df23 2985 * from eh_host_reset or ioctl module */
6e7b4292 2986 if (is_qla80XX(ha) && !reset_chip &&
f4f5df23
VC		 2987 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) {
2988
2989 DEBUG2(ql4_printk(KERN_INFO, ha,
2990 "scsi%ld: %s - Performing stop_firmware...\n",
2991 ha->host_no, __func__));
2992 status = ha->isp_ops->reset_firmware(ha);
2993 if (status == QLA_SUCCESS) {
2bd1e2be
NJ		 2994 if (!test_bit(AF_FW_RECOVERY, &ha->flags))
2995 qla4xxx_cmd_wait(ha);
5c19b92a 2996
f4f5df23
VC		 2997 ha->isp_ops->disable_intrs(ha);
2998 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
2999 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
3000 } else {
3001 /* If the stop_firmware fails then
3002 * reset the entire chip */
3003 reset_chip = 1;
3004 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
3005 set_bit(DPC_RESET_HA, &ha->dpc_flags);
3006 }
3007 }
dca05c4c 3008
f4f5df23 3009 /* Issue full chip reset if recovering from a catastrophic error,
6e7b4292 3010 * or if stop_firmware fails for ISP-8xxx.
f4f5df23 3011 * This is the default case for ISP-4xxx */
ee996a69
VC		 3012 if (is_qla40XX(ha) || reset_chip) {
3013 if (is_qla40XX(ha))
9ee91a38
SS		 3014 goto chip_reset;
3015
6e7b4292 3016 /* Check if 8XXX firmware is alive or not
9ee91a38
SS		 3017 * We may have arrived here from NEED_RESET
3018 * detection only */
3019 if (test_bit(AF_FW_RECOVERY, &ha->flags))
3020 goto chip_reset;
3021
3022 wait = jiffies + (FW_ALIVE_WAIT_TOV * HZ);
3023 while (time_before(jiffies, wait)) {
3024 if (qla4_8xxx_check_fw_alive(ha)) {
3025 qla4xxx_mailbox_premature_completion(ha);
3026 break;
3027 }
3028
3029 set_current_state(TASK_UNINTERRUPTIBLE);
3030 schedule_timeout(HZ);
3031 }
da106212 3032chip_reset:
2bd1e2be
NJ		 3033 if (!test_bit(AF_FW_RECOVERY, &ha->flags))
3034 qla4xxx_cmd_wait(ha);
da106212 3035
f4f5df23
VC		 3036 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
3037 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
3038 DEBUG2(ql4_printk(KERN_INFO, ha,
3039 "scsi%ld: %s - Performing chip reset..\n",
3040 ha->host_no, __func__));
3041 status = ha->isp_ops->reset_chip(ha);
3042 }
afaf5a2d
DS		 3043
3044 /* Flush any pending ddb changed AENs */
3045 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
3046
f4f5df23
VC		 3047recover_ha_init_adapter:
3048 /* Upon successful firmware/chip reset, re-initialize the adapter */
afaf5a2d 3049 if (status == QLA_SUCCESS) {
f4f5df23
VC		 3050 /* For ISP-4xxx, force function 1 to always initialize
3051 * before function 3 to prevent both funcions from
3052 * stepping on top of the other */
ee996a69 3053 if (is_qla40XX(ha) && (ha->mac_index == 3))
f4f5df23
VC		 3054 ssleep(6);
3055
3056 /* NOTE: AF_ONLINE flag set upon successful completion of
3057 * qla4xxx_initialize_adapter */
13483730 3058 status = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
afaf5a2d
DS		 3059 }
3060
f4f5df23
VC		 3061 /* Retry failed adapter initialization, if necessary
3062 * Do not retry initialize_adapter for RESET_HA_INTR (ISP-4xxx specific)
3063 * case to prevent ping-pong resets between functions */
3064 if (!test_bit(AF_ONLINE, &ha->flags) &&
3065 !test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
afaf5a2d 3066 /* Adapter initialization failed, see if we can retry
f4f5df23
VC		 3067 * resetting the ha.
3068 * Since we don't want to block the DPC for too long
3069 * with multiple resets in the same thread,
3070 * utilize DPC to retry */
6e7b4292 3071 if (is_qla80XX(ha)) {
33693c7a
VC		 3072 ha->isp_ops->idc_lock(ha);
3073 dev_state = qla4_8xxx_rd_direct(ha,
3074 QLA8XXX_CRB_DEV_STATE);
3075 ha->isp_ops->idc_unlock(ha);
de8c72da 3076 if (dev_state == QLA8XXX_DEV_FAILED) {
8e0f3a66
SR		 3077 ql4_printk(KERN_INFO, ha, "%s: don't retry "
3078 "recover adapter. H/W is in Failed "
3079 "state\n", __func__);
3080 qla4xxx_dead_adapter_cleanup(ha);
3081 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
3082 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
3083 clear_bit(DPC_RESET_HA_FW_CONTEXT,
3084 &ha->dpc_flags);
3085 status = QLA_ERROR;
3086
3087 goto exit_recover;
3088 }
3089 }
3090
afaf5a2d
DS		 3091 if (!test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags)) {
3092 ha->retry_reset_ha_cnt = MAX_RESET_HA_RETRIES;
3093 DEBUG2(printk("scsi%ld: recover adapter - retrying "
3094 "(%d) more times\n", ha->host_no,
3095 ha->retry_reset_ha_cnt));
3096 set_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
3097 status = QLA_ERROR;
3098 } else {
3099 if (ha->retry_reset_ha_cnt > 0) {
3100 /* Schedule another Reset HA--DPC will retry */
3101 ha->retry_reset_ha_cnt--;
3102 DEBUG2(printk("scsi%ld: recover adapter - "
3103 "retry remaining %d\n",
3104 ha->host_no,
3105 ha->retry_reset_ha_cnt));
3106 status = QLA_ERROR;
3107 }
3108
3109 if (ha->retry_reset_ha_cnt == 0) {
3110 /* Recover adapter retries have been exhausted.
3111 * Adapter DEAD */
3112 DEBUG2(printk("scsi%ld: recover adapter "
3113 "failed - board disabled\n",
3114 ha->host_no));
f4f5df23 3115 qla4xxx_dead_adapter_cleanup(ha);
afaf5a2d
DS		 3116 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
3117 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
f4f5df23 3118 clear_bit(DPC_RESET_HA_FW_CONTEXT,
afaf5a2d
DS		 3119 &ha->dpc_flags);
3120 status = QLA_ERROR;
3121 }
3122 }
3123 } else {
3124 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
f4f5df23 3125 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
afaf5a2d
DS		 3126 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
3127 }
3128
8e0f3a66 3129exit_recover:
afaf5a2d
DS		 3130 ha->adapter_error_count++;
3131
f4f5df23
VC		 3132 if (test_bit(AF_ONLINE, &ha->flags))
3133 ha->isp_ops->enable_intrs(ha);
3134
3135 scsi_unblock_requests(ha->host);
3136
3137 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
3138 DEBUG2(printk("scsi%ld: recover adapter: %s\n", ha->host_no,
25985edc 3139 status == QLA_ERROR ? "FAILED" : "SUCCEEDED"));
afaf5a2d 3140
afaf5a2d
DS		 3141 return status;
3142}
3143
b3a271a9 3144static void qla4xxx_relogin_devices(struct iscsi_cls_session *cls_session)
2d7924e6 3145{
b3a271a9
MR		 3146 struct iscsi_session *sess;
3147 struct ddb_entry *ddb_entry;
3148 struct scsi_qla_host *ha;
2d7924e6 3149
b3a271a9
MR		 3150 sess = cls_session->dd_data;
3151 ddb_entry = sess->dd_data;
3152 ha = ddb_entry->ha;
3153 if (!iscsi_is_session_online(cls_session)) {
3154 if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) {
3155 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
3156 " unblock session\n", ha->host_no, __func__,
3157 ddb_entry->fw_ddb_index);
3158 iscsi_unblock_session(ddb_entry->sess);
3159 } else {
3160 /* Trigger relogin */
13483730
MC		 3161 if (ddb_entry->ddb_type == FLASH_DDB) {
3162 if (!test_bit(DF_RELOGIN, &ddb_entry->flags))
3163 qla4xxx_arm_relogin_timer(ddb_entry);
3164 } else
3165 iscsi_session_failure(cls_session->dd_data,
3166 ISCSI_ERR_CONN_FAILED);
2d7924e6
VC		 3167 }
3168 }
3169}
3170
13483730
MC		 3171int qla4xxx_unblock_flash_ddb(struct iscsi_cls_session *cls_session)
3172{
3173 struct iscsi_session *sess;
3174 struct ddb_entry *ddb_entry;
3175 struct scsi_qla_host *ha;
3176
3177 sess = cls_session->dd_data;
3178 ddb_entry = sess->dd_data;
3179 ha = ddb_entry->ha;
3180 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
3181 " unblock session\n", ha->host_no, __func__,
3182 ddb_entry->fw_ddb_index);
3183
3184 iscsi_unblock_session(ddb_entry->sess);
3185
3186 /* Start scan target */
3187 if (test_bit(AF_ONLINE, &ha->flags)) {
3188 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
3189 " start scan\n", ha->host_no, __func__,
3190 ddb_entry->fw_ddb_index);
3191 scsi_queue_work(ha->host, &ddb_entry->sess->scan_work);
3192 }
3193 return QLA_SUCCESS;
3194}
3195
3196int qla4xxx_unblock_ddb(struct iscsi_cls_session *cls_session)
3197{
3198 struct iscsi_session *sess;
3199 struct ddb_entry *ddb_entry;
3200 struct scsi_qla_host *ha;
80c53e64 3201 int status = QLA_SUCCESS;
13483730
MC		 3202
3203 sess = cls_session->dd_data;
3204 ddb_entry = sess->dd_data;
3205 ha = ddb_entry->ha;
3206 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
3207 " unblock user space session\n", ha->host_no, __func__,
3208 ddb_entry->fw_ddb_index);
13483730 3209
80c53e64
MR		 3210 if (!iscsi_is_session_online(cls_session)) {
3211 iscsi_conn_start(ddb_entry->conn);
3212 iscsi_conn_login_event(ddb_entry->conn,
3213 ISCSI_CONN_STATE_LOGGED_IN);
3214 } else {
3215 ql4_printk(KERN_INFO, ha,
3216 "scsi%ld: %s: ddb[%d] session [%d] already logged in\n",
3217 ha->host_no, __func__, ddb_entry->fw_ddb_index,
3218 cls_session->sid);
3219 status = QLA_ERROR;
3220 }
3221
3222 return status;
13483730
MC		 3223}
3224
b3a271a9
MR		 3225static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha)
3226{
3227 iscsi_host_for_each_session(ha->host, qla4xxx_relogin_devices);
3228}
3229
13483730
MC		 3230static void qla4xxx_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)
3231{
3232 uint16_t relogin_timer;
3233 struct iscsi_session *sess;
3234 struct ddb_entry *ddb_entry;
3235 struct scsi_qla_host *ha;
3236
3237 sess = cls_sess->dd_data;
3238 ddb_entry = sess->dd_data;
3239 ha = ddb_entry->ha;
3240
3241 relogin_timer = max(ddb_entry->default_relogin_timeout,
3242 (uint16_t)RELOGIN_TOV);
3243 atomic_set(&ddb_entry->relogin_timer, relogin_timer);
3244
3245 DEBUG2(ql4_printk(KERN_INFO, ha,
3246 "scsi%ld: Relogin index [%d]. TOV=%d\n", ha->host_no,
3247 ddb_entry->fw_ddb_index, relogin_timer));
3248
3249 qla4xxx_login_flash_ddb(cls_sess);
3250}
3251
3252static void qla4xxx_dpc_relogin(struct iscsi_cls_session *cls_sess)
3253{
3254 struct iscsi_session *sess;
3255 struct ddb_entry *ddb_entry;
3256 struct scsi_qla_host *ha;
3257
3258 sess = cls_sess->dd_data;
3259 ddb_entry = sess->dd_data;
3260 ha = ddb_entry->ha;
3261
3262 if (!(ddb_entry->ddb_type == FLASH_DDB))
3263 return;
3264
3265 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags) &&
3266 !iscsi_is_session_online(cls_sess)) {
3267 DEBUG2(ql4_printk(KERN_INFO, ha,
3268 "relogin issued\n"));
3269 qla4xxx_relogin_flash_ddb(cls_sess);
3270 }
3271}
3272
f4f5df23
VC		 3273void qla4xxx_wake_dpc(struct scsi_qla_host *ha)
3274{
1b46807e 3275 if (ha->dpc_thread)
f4f5df23 3276 queue_work(ha->dpc_thread, &ha->dpc_work);
f4f5df23
VC		 3277}
3278
ff884430
VC		 3279static struct qla4_work_evt *
3280qla4xxx_alloc_work(struct scsi_qla_host *ha, uint32_t data_size,
3281 enum qla4_work_type type)
3282{
3283 struct qla4_work_evt *e;
3284 uint32_t size = sizeof(struct qla4_work_evt) + data_size;
3285
3286 e = kzalloc(size, GFP_ATOMIC);
3287 if (!e)
3288 return NULL;
3289
3290 INIT_LIST_HEAD(&e->list);
3291 e->type = type;
3292 return e;
3293}
3294
3295static void qla4xxx_post_work(struct scsi_qla_host *ha,
3296 struct qla4_work_evt *e)
3297{
3298 unsigned long flags;
3299
3300 spin_lock_irqsave(&ha->work_lock, flags);
3301 list_add_tail(&e->list, &ha->work_list);
3302 spin_unlock_irqrestore(&ha->work_lock, flags);
3303 qla4xxx_wake_dpc(ha);
3304}
3305
3306int qla4xxx_post_aen_work(struct scsi_qla_host *ha,
3307 enum iscsi_host_event_code aen_code,
3308 uint32_t data_size, uint8_t *data)
3309{
3310 struct qla4_work_evt *e;
3311
3312 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_AEN);
3313 if (!e)
3314 return QLA_ERROR;
3315
3316 e->u.aen.code = aen_code;
3317 e->u.aen.data_size = data_size;
3318 memcpy(e->u.aen.data, data, data_size);
3319
3320 qla4xxx_post_work(ha, e);
3321
3322 return QLA_SUCCESS;
3323}
3324
c0b9d3f7
VC		 3325int qla4xxx_post_ping_evt_work(struct scsi_qla_host *ha,
3326 uint32_t status, uint32_t pid,
3327 uint32_t data_size, uint8_t *data)
3328{
3329 struct qla4_work_evt *e;
3330
3331 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_PING_STATUS);
3332 if (!e)
3333 return QLA_ERROR;
3334
3335 e->u.ping.status = status;
3336 e->u.ping.pid = pid;
3337 e->u.ping.data_size = data_size;
3338 memcpy(e->u.ping.data, data, data_size);
3339
3340 qla4xxx_post_work(ha, e);
3341
3342 return QLA_SUCCESS;
3343}
3344
a7380a65 3345static void qla4xxx_do_work(struct scsi_qla_host *ha)
ff884430
VC		 3346{
3347 struct qla4_work_evt *e, *tmp;
3348 unsigned long flags;
3349 LIST_HEAD(work);
3350
3351 spin_lock_irqsave(&ha->work_lock, flags);
3352 list_splice_init(&ha->work_list, &work);
3353 spin_unlock_irqrestore(&ha->work_lock, flags);
3354
3355 list_for_each_entry_safe(e, tmp, &work, list) {
3356 list_del_init(&e->list);
3357
3358 switch (e->type) {
3359 case QLA4_EVENT_AEN:
3360 iscsi_post_host_event(ha->host_no,
3361 &qla4xxx_iscsi_transport,
3362 e->u.aen.code,
3363 e->u.aen.data_size,
3364 e->u.aen.data);
3365 break;
c0b9d3f7
VC		 3366 case QLA4_EVENT_PING_STATUS:
3367 iscsi_ping_comp_event(ha->host_no,
3368 &qla4xxx_iscsi_transport,
3369 e->u.ping.status,
3370 e->u.ping.pid,
3371 e->u.ping.data_size,
3372 e->u.ping.data);
3373 break;
ff884430
VC		 3374 default:
3375 ql4_printk(KERN_WARNING, ha, "event type: 0x%x not "
3376 "supported", e->type);
3377 }
3378 kfree(e);
3379 }
3380}
3381
afaf5a2d
DS		 3382/**
3383 * qla4xxx_do_dpc - dpc routine
3384 * @data: in our case pointer to adapter structure
3385 *
3386 * This routine is a task that is schedule by the interrupt handler
3387 * to perform the background processing for interrupts. We put it
3388 * on a task queue that is consumed whenever the scheduler runs; that's
3389 * so you can do anything (i.e. put the process to sleep etc). In fact,
3390 * the mid-level tries to sleep when it reaches the driver threshold
3391 * "host->can_queue". This can cause a panic if we were in our interrupt code.
3392 **/
c4028958 3393static void qla4xxx_do_dpc(struct work_struct *work)
afaf5a2d 3394{
c4028958
DH		 3395 struct scsi_qla_host *ha =
3396 container_of(work, struct scsi_qla_host, dpc_work);
477ffb9d 3397 int status = QLA_ERROR;
afaf5a2d 3398
f26b9044 3399 DEBUG2(printk("scsi%ld: %s: DPC handler waking up."
f4f5df23
VC		 3400 "flags = 0x%08lx, dpc_flags = 0x%08lx\n",
3401 ha->host_no, __func__, ha->flags, ha->dpc_flags))
afaf5a2d
DS		 3402
3403 /* Initialization not yet finished. Don't do anything yet. */
3404 if (!test_bit(AF_INIT_DONE, &ha->flags))
1b46807e 3405 return;
afaf5a2d 3406
2232be0d
LC		 3407 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
3408 DEBUG2(printk(KERN_INFO "scsi%ld: %s: flags = %lx\n",
3409 ha->host_no, __func__, ha->flags));
1b46807e 3410 return;
2232be0d
LC		 3411 }
3412
ff884430
VC		 3413 /* post events to application */
3414 qla4xxx_do_work(ha);
3415
6e7b4292 3416 if (is_qla80XX(ha)) {
f4f5df23 3417 if (test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags)) {
546fef27
TP		 3418 if (is_qla8032(ha)) {
3419 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
3420 __func__);
3421 /* disable pause frame for ISP83xx */
3422 qla4_83xx_disable_pause(ha);
3423 }
3424
33693c7a
VC		 3425 ha->isp_ops->idc_lock(ha);
3426 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
3427 QLA8XXX_DEV_FAILED);
3428 ha->isp_ops->idc_unlock(ha);
f4f5df23
VC		 3429 ql4_printk(KERN_INFO, ha, "HW State: FAILED\n");
3430 qla4_8xxx_device_state_handler(ha);
3431 }
320a61de
NJ		 3432
3433 if (test_and_clear_bit(DPC_POST_IDC_ACK, &ha->dpc_flags))
3434 qla4_83xx_post_idc_ack(ha);
3435
f4f5df23
VC		 3436 if (test_and_clear_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) {
3437 qla4_8xxx_need_qsnt_handler(ha);
3438 }
3439 }
3440
3441 if (!test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) &&
3442 (test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
afaf5a2d 3443 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
f4f5df23 3444 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))) {
6e7b4292
VC		 3445 if ((is_qla8022(ha) && ql4xdontresethba) ||
3446 (is_qla8032(ha) && qla4_83xx_idc_dontreset(ha))) {
f4f5df23
VC		 3447 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n",
3448 ha->host_no, __func__));
3449 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
3450 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags);
3451 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
3452 goto dpc_post_reset_ha;
3453 }
3454 if (test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) ||
3455 test_bit(DPC_RESET_HA, &ha->dpc_flags))
3456 qla4xxx_recover_adapter(ha);
afaf5a2d 3457
477ffb9d 3458 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
afaf5a2d 3459 uint8_t wait_time = RESET_INTR_TOV;
afaf5a2d 3460
afaf5a2d
DS		 3461 while ((readw(&ha->reg->ctrl_status) &
3462 (CSR_SOFT_RESET | CSR_FORCE_SOFT_RESET)) != 0) {
3463 if (--wait_time == 0)
3464 break;
afaf5a2d 3465 msleep(1000);
afaf5a2d 3466 }
afaf5a2d
DS		 3467 if (wait_time == 0)
3468 DEBUG2(printk("scsi%ld: %s: SR|FSR "
3469 "bit not cleared-- resetting\n",
3470 ha->host_no, __func__));
f4f5df23 3471 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
477ffb9d
DS		 3472 if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS) {
3473 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
f4f5df23 3474 status = qla4xxx_recover_adapter(ha);
477ffb9d
DS		 3475 }
3476 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags);
3477 if (status == QLA_SUCCESS)
f4f5df23 3478 ha->isp_ops->enable_intrs(ha);
afaf5a2d
DS		 3479 }
3480 }
3481
f4f5df23 3482dpc_post_reset_ha:
afaf5a2d
DS		 3483 /* ---- process AEN? --- */
3484 if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags))
3485 qla4xxx_process_aen(ha, PROCESS_ALL_AENS);
3486
3487 /* ---- Get DHCP IP Address? --- */
3488 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags))
3489 qla4xxx_get_dhcp_ip_address(ha);
3490
13483730
MC		 3491 /* ---- relogin device? --- */
3492 if (adapter_up(ha) &&
3493 test_and_clear_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags)) {
3494 iscsi_host_for_each_session(ha->host, qla4xxx_dpc_relogin);
3495 }
3496
065aa1b4 3497 /* ---- link change? --- */
026fbd3a
NJ		 3498 if (!test_bit(AF_LOOPBACK, &ha->flags) &&
3499 test_and_clear_bit(DPC_LINK_CHANGED, &ha->dpc_flags)) {
065aa1b4
VC		 3500 if (!test_bit(AF_LINK_UP, &ha->flags)) {
3501 /* ---- link down? --- */
2d7924e6 3502 qla4xxx_mark_all_devices_missing(ha);
065aa1b4
VC		 3503 } else {
3504 /* ---- link up? --- *
3505 * F/W will auto login to all devices ONLY ONCE after
3506 * link up during driver initialization and runtime
3507 * fatal error recovery. Therefore, the driver must
3508 * manually relogin to devices when recovering from
3509 * connection failures, logouts, expired KATO, etc. */
13483730
MC		 3510 if (test_and_clear_bit(AF_BUILD_DDB_LIST, &ha->flags)) {
3511 qla4xxx_build_ddb_list(ha, ha->is_reset);
3512 iscsi_host_for_each_session(ha->host,
3513 qla4xxx_login_flash_ddb);
3514 } else
3515 qla4xxx_relogin_all_devices(ha);
065aa1b4
VC		 3516 }
3517 }
afaf5a2d
DS		 3518}
3519
3520/**
3521 * qla4xxx_free_adapter - release the adapter
3522 * @ha: pointer to adapter structure
3523 **/
3524static void qla4xxx_free_adapter(struct scsi_qla_host *ha)
3525{
8a288960 3526 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
afaf5a2d 3527
5c19b92a
VC		 3528 /* Turn-off interrupts on the card. */
3529 ha->isp_ops->disable_intrs(ha);
afaf5a2d 3530
d9e62e51
VC		 3531 if (is_qla40XX(ha)) {
3532 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR),
3533 &ha->reg->ctrl_status);
3534 readl(&ha->reg->ctrl_status);
3535 } else if (is_qla8022(ha)) {
7664a1fd
VC		 3536 writel(0, &ha->qla4_82xx_reg->host_int);
3537 readl(&ha->qla4_82xx_reg->host_int);
fbd8107c
VC		 3538 } else if (is_qla8032(ha)) {
3539 writel(0, &ha->qla4_83xx_reg->risc_intr);
3540 readl(&ha->qla4_83xx_reg->risc_intr);
d9e62e51
VC		 3541 }
3542
f4f5df23
VC		 3543 /* Remove timer thread, if present */
3544 if (ha->timer_active)
3545 qla4xxx_stop_timer(ha);
3546
afaf5a2d
DS		 3547 /* Kill the kernel thread for this host */
3548 if (ha->dpc_thread)
3549 destroy_workqueue(ha->dpc_thread);
3550
b3a271a9
MR		 3551 /* Kill the kernel thread for this host */
3552 if (ha->task_wq)
3553 destroy_workqueue(ha->task_wq);
3554
f4f5df23
VC		 3555 /* Put firmware in known state */
3556 ha->isp_ops->reset_firmware(ha);
afaf5a2d 3557
6e7b4292 3558 if (is_qla80XX(ha)) {
33693c7a 3559 ha->isp_ops->idc_lock(ha);
f4f5df23 3560 qla4_8xxx_clear_drv_active(ha);
33693c7a 3561 ha->isp_ops->idc_unlock(ha);
f4f5df23 3562 }
afaf5a2d 3563
afaf5a2d 3564 /* Detach interrupts */
5c19b92a 3565 qla4xxx_free_irqs(ha);
afaf5a2d 3566
bee4fe8e
DS		 3567 /* free extra memory */
3568 qla4xxx_mem_free(ha);
f4f5df23
VC		 3569}
3570
3571int qla4_8xxx_iospace_config(struct scsi_qla_host *ha)
3572{
3573 int status = 0;
f4f5df23
VC		 3574 unsigned long mem_base, mem_len, db_base, db_len;
3575 struct pci_dev *pdev = ha->pdev;
3576
3577 status = pci_request_regions(pdev, DRIVER_NAME);
3578 if (status) {
3579 printk(KERN_WARNING
3580 "scsi(%ld) Failed to reserve PIO regions (%s) "
3581 "status=%d\n", ha->host_no, pci_name(pdev), status);
3582 goto iospace_error_exit;
3583 }
3584
f4f5df23 3585 DEBUG2(printk(KERN_INFO "%s: revision-id=%d\n",
7d7311c4
SS		 3586 __func__, pdev->revision));
3587 ha->revision_id = pdev->revision;
bee4fe8e 3588
f4f5df23
VC		 3589 /* remap phys address */
3590 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
3591 mem_len = pci_resource_len(pdev, 0);
3592 DEBUG2(printk(KERN_INFO "%s: ioremap from %lx a size of %lx\n",
3593 __func__, mem_base, mem_len));
afaf5a2d 3594
f4f5df23
VC		 3595 /* mapping of pcibase pointer */
3596 ha->nx_pcibase = (unsigned long)ioremap(mem_base, mem_len);
3597 if (!ha->nx_pcibase) {
3598 printk(KERN_ERR
3599 "cannot remap MMIO (%s), aborting\n", pci_name(pdev));
3600 pci_release_regions(ha->pdev);
3601 goto iospace_error_exit;
3602 }
3603
3604 /* Mapping of IO base pointer, door bell read and write pointer */
3605
3606 /* mapping of IO base pointer */
6e7b4292
VC		 3607 if (is_qla8022(ha)) {
3608 ha->qla4_82xx_reg = (struct device_reg_82xx __iomem *)
3609 ((uint8_t *)ha->nx_pcibase + 0xbc000 +
3610 (ha->pdev->devfn << 11));
3611 ha->nx_db_wr_ptr = (ha->pdev->devfn == 4 ? QLA82XX_CAM_RAM_DB1 :
3612 QLA82XX_CAM_RAM_DB2);
3613 } else if (is_qla8032(ha)) {
3614 ha->qla4_83xx_reg = (struct device_reg_83xx __iomem *)
3615 ((uint8_t *)ha->nx_pcibase);
3616 }
f4f5df23
VC		 3617
3618 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
3619 db_len = pci_resource_len(pdev, 4);
3620
2657c800 3621 return 0;
f4f5df23
VC		 3622iospace_error_exit:
3623 return -ENOMEM;
afaf5a2d
DS		 3624}
3625
3626/***
3627 * qla4xxx_iospace_config - maps registers
3628 * @ha: pointer to adapter structure
3629 *
3630 * This routines maps HBA's registers from the pci address space
3631 * into the kernel virtual address space for memory mapped i/o.
3632 **/
f4f5df23 3633int qla4xxx_iospace_config(struct scsi_qla_host *ha)
afaf5a2d
DS		 3634{
3635 unsigned long pio, pio_len, pio_flags;
3636 unsigned long mmio, mmio_len, mmio_flags;
3637
3638 pio = pci_resource_start(ha->pdev, 0);
3639 pio_len = pci_resource_len(ha->pdev, 0);
3640 pio_flags = pci_resource_flags(ha->pdev, 0);
3641 if (pio_flags & IORESOURCE_IO) {
3642 if (pio_len < MIN_IOBASE_LEN) {
c2660df3 3643 ql4_printk(KERN_WARNING, ha,
afaf5a2d
DS		 3644 "Invalid PCI I/O region size\n");
3645 pio = 0;
3646 }
3647 } else {
c2660df3 3648 ql4_printk(KERN_WARNING, ha, "region #0 not a PIO resource\n");
afaf5a2d
DS		 3649 pio = 0;
3650 }
3651
3652 /* Use MMIO operations for all accesses. */
3653 mmio = pci_resource_start(ha->pdev, 1);
3654 mmio_len = pci_resource_len(ha->pdev, 1);
3655 mmio_flags = pci_resource_flags(ha->pdev, 1);
3656
3657 if (!(mmio_flags & IORESOURCE_MEM)) {
c2660df3
VC		 3658 ql4_printk(KERN_ERR, ha,
3659 "region #0 not an MMIO resource, aborting\n");
afaf5a2d
DS		 3660
3661 goto iospace_error_exit;
3662 }
c2660df3 3663
afaf5a2d 3664 if (mmio_len < MIN_IOBASE_LEN) {
c2660df3
VC		 3665 ql4_printk(KERN_ERR, ha,
3666 "Invalid PCI mem region size, aborting\n");
afaf5a2d
DS		 3667 goto iospace_error_exit;
3668 }
3669
3670 if (pci_request_regions(ha->pdev, DRIVER_NAME)) {
c2660df3
VC		 3671 ql4_printk(KERN_WARNING, ha,
3672 "Failed to reserve PIO/MMIO regions\n");
afaf5a2d
DS		 3673
3674 goto iospace_error_exit;
3675 }
3676
3677 ha->pio_address = pio;
3678 ha->pio_length = pio_len;
3679 ha->reg = ioremap(mmio, MIN_IOBASE_LEN);
3680 if (!ha->reg) {
c2660df3
VC		 3681 ql4_printk(KERN_ERR, ha,
3682 "cannot remap MMIO, aborting\n");
afaf5a2d
DS		 3683
3684 goto iospace_error_exit;
3685 }
3686
3687 return 0;
3688
3689iospace_error_exit:
3690 return -ENOMEM;
3691}
3692
f4f5df23
VC		 3693static struct isp_operations qla4xxx_isp_ops = {
3694 .iospace_config = qla4xxx_iospace_config,
3695 .pci_config = qla4xxx_pci_config,
3696 .disable_intrs = qla4xxx_disable_intrs,
3697 .enable_intrs = qla4xxx_enable_intrs,
3698 .start_firmware = qla4xxx_start_firmware,
3699 .intr_handler = qla4xxx_intr_handler,
3700 .interrupt_service_routine = qla4xxx_interrupt_service_routine,
3701 .reset_chip = qla4xxx_soft_reset,
3702 .reset_firmware = qla4xxx_hw_reset,
3703 .queue_iocb = qla4xxx_queue_iocb,
3704 .complete_iocb = qla4xxx_complete_iocb,
3705 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out,
3706 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in,
3707 .get_sys_info = qla4xxx_get_sys_info,
33693c7a
VC		 3708 .queue_mailbox_command = qla4xxx_queue_mbox_cmd,
3709 .process_mailbox_interrupt = qla4xxx_process_mbox_intr,
f4f5df23
VC		 3710};
3711
7664a1fd 3712static struct isp_operations qla4_82xx_isp_ops = {
f4f5df23
VC		 3713 .iospace_config = qla4_8xxx_iospace_config,
3714 .pci_config = qla4_8xxx_pci_config,
f8086f4f
VC		 3715 .disable_intrs = qla4_82xx_disable_intrs,
3716 .enable_intrs = qla4_82xx_enable_intrs,
f4f5df23 3717 .start_firmware = qla4_8xxx_load_risc,
33693c7a 3718 .restart_firmware = qla4_82xx_try_start_fw,
f8086f4f
VC		 3719 .intr_handler = qla4_82xx_intr_handler,
3720 .interrupt_service_routine = qla4_82xx_interrupt_service_routine,
33693c7a 3721 .need_reset = qla4_8xxx_need_reset,
f8086f4f 3722 .reset_chip = qla4_82xx_isp_reset,
f4f5df23 3723 .reset_firmware = qla4_8xxx_stop_firmware,
f8086f4f
VC		 3724 .queue_iocb = qla4_82xx_queue_iocb,
3725 .complete_iocb = qla4_82xx_complete_iocb,
3726 .rd_shdw_req_q_out = qla4_82xx_rd_shdw_req_q_out,
3727 .rd_shdw_rsp_q_in = qla4_82xx_rd_shdw_rsp_q_in,
f4f5df23 3728 .get_sys_info = qla4_8xxx_get_sys_info,
33693c7a
VC		 3729 .rd_reg_direct = qla4_82xx_rd_32,
3730 .wr_reg_direct = qla4_82xx_wr_32,
3731 .rd_reg_indirect = qla4_82xx_md_rd_32,
3732 .wr_reg_indirect = qla4_82xx_md_wr_32,
3733 .idc_lock = qla4_82xx_idc_lock,
3734 .idc_unlock = qla4_82xx_idc_unlock,
3735 .rom_lock_recovery = qla4_82xx_rom_lock_recovery,
3736 .queue_mailbox_command = qla4_82xx_queue_mbox_cmd,
3737 .process_mailbox_interrupt = qla4_82xx_process_mbox_intr,
f4f5df23
VC		 3738};
3739
6e7b4292
VC		 3740static struct isp_operations qla4_83xx_isp_ops = {
3741 .iospace_config = qla4_8xxx_iospace_config,
3742 .pci_config = qla4_8xxx_pci_config,
3743 .disable_intrs = qla4_83xx_disable_intrs,
3744 .enable_intrs = qla4_83xx_enable_intrs,
3745 .start_firmware = qla4_8xxx_load_risc,
3746 .restart_firmware = qla4_83xx_start_firmware,
3747 .intr_handler = qla4_83xx_intr_handler,
3748 .interrupt_service_routine = qla4_83xx_interrupt_service_routine,
3749 .need_reset = qla4_8xxx_need_reset,
3750 .reset_chip = qla4_83xx_isp_reset,
3751 .reset_firmware = qla4_8xxx_stop_firmware,
3752 .queue_iocb = qla4_83xx_queue_iocb,
3753 .complete_iocb = qla4_83xx_complete_iocb,
a24058f9
TP		 3754 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out,
3755 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in,
6e7b4292
VC		 3756 .get_sys_info = qla4_8xxx_get_sys_info,
3757 .rd_reg_direct = qla4_83xx_rd_reg,
3758 .wr_reg_direct = qla4_83xx_wr_reg,
3759 .rd_reg_indirect = qla4_83xx_rd_reg_indirect,
3760 .wr_reg_indirect = qla4_83xx_wr_reg_indirect,
3761 .idc_lock = qla4_83xx_drv_lock,
3762 .idc_unlock = qla4_83xx_drv_unlock,
3763 .rom_lock_recovery = qla4_83xx_rom_lock_recovery,
3764 .queue_mailbox_command = qla4_83xx_queue_mbox_cmd,
3765 .process_mailbox_interrupt = qla4_83xx_process_mbox_intr,
f4f5df23
VC		 3766};
3767
3768uint16_t qla4xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha)
3769{
3770 return (uint16_t)le32_to_cpu(ha->shadow_regs->req_q_out);
3771}
3772
f8086f4f 3773uint16_t qla4_82xx_rd_shdw_req_q_out(struct scsi_qla_host *ha)
f4f5df23 3774{
7664a1fd 3775 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->req_q_out));
f4f5df23
VC		 3776}
3777
3778uint16_t qla4xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha)
3779{
3780 return (uint16_t)le32_to_cpu(ha->shadow_regs->rsp_q_in);
3781}
3782
f8086f4f 3783uint16_t qla4_82xx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha)
f4f5df23 3784{
7664a1fd 3785 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->rsp_q_in));
f4f5df23
VC		 3786}
3787
2a991c21
MR		 3788static ssize_t qla4xxx_show_boot_eth_info(void *data, int type, char *buf)
3789{
3790 struct scsi_qla_host *ha = data;
3791 char *str = buf;
3792 int rc;
3793
3794 switch (type) {
3795 case ISCSI_BOOT_ETH_FLAGS:
3796 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT);
3797 break;
3798 case ISCSI_BOOT_ETH_INDEX:
3799 rc = sprintf(str, "0\n");
3800 break;
3801 case ISCSI_BOOT_ETH_MAC:
3802 rc = sysfs_format_mac(str, ha->my_mac,
3803 MAC_ADDR_LEN);
3804 break;
3805 default:
3806 rc = -ENOSYS;
3807 break;
3808 }
3809 return rc;
3810}
3811
587a1f16 3812static umode_t qla4xxx_eth_get_attr_visibility(void *data, int type)
2a991c21
MR		 3813{
3814 int rc;
3815
3816 switch (type) {
3817 case ISCSI_BOOT_ETH_FLAGS:
3818 case ISCSI_BOOT_ETH_MAC:
3819 case ISCSI_BOOT_ETH_INDEX:
3820 rc = S_IRUGO;
3821 break;
3822 default:
3823 rc = 0;
3824 break;
3825 }
3826 return rc;
3827}
3828
3829static ssize_t qla4xxx_show_boot_ini_info(void *data, int type, char *buf)
3830{
3831 struct scsi_qla_host *ha = data;
3832 char *str = buf;
3833 int rc;
3834
3835 switch (type) {
3836 case ISCSI_BOOT_INI_INITIATOR_NAME:
3837 rc = sprintf(str, "%s\n", ha->name_string);
3838 break;
3839 default:
3840 rc = -ENOSYS;
3841 break;
3842 }
3843 return rc;
3844}
3845
587a1f16 3846static umode_t qla4xxx_ini_get_attr_visibility(void *data, int type)
2a991c21
MR		 3847{
3848 int rc;
3849
3850 switch (type) {
3851 case ISCSI_BOOT_INI_INITIATOR_NAME:
3852 rc = S_IRUGO;
3853 break;
3854 default:
3855 rc = 0;
3856 break;
3857 }
3858 return rc;
3859}
3860
3861static ssize_t
3862qla4xxx_show_boot_tgt_info(struct ql4_boot_session_info *boot_sess, int type,
3863 char *buf)
3864{
3865 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0];
3866 char *str = buf;
3867 int rc;
3868
3869 switch (type) {
3870 case ISCSI_BOOT_TGT_NAME:
3871 rc = sprintf(buf, "%s\n", (char *)&boot_sess->target_name);
3872 break;
3873 case ISCSI_BOOT_TGT_IP_ADDR:
3874 if (boot_sess->conn_list[0].dest_ipaddr.ip_type == 0x1)
3875 rc = sprintf(buf, "%pI4\n",
3876 &boot_conn->dest_ipaddr.ip_address);
3877 else
3878 rc = sprintf(str, "%pI6\n",
3879 &boot_conn->dest_ipaddr.ip_address);
3880 break;
3881 case ISCSI_BOOT_TGT_PORT:
3882 rc = sprintf(str, "%d\n", boot_conn->dest_port);
3883 break;
3884 case ISCSI_BOOT_TGT_CHAP_NAME:
3885 rc = sprintf(str, "%.*s\n",
3886 boot_conn->chap.target_chap_name_length,
3887 (char *)&boot_conn->chap.target_chap_name);
3888 break;
3889 case ISCSI_BOOT_TGT_CHAP_SECRET:
3890 rc = sprintf(str, "%.*s\n",
3891 boot_conn->chap.target_secret_length,
3892 (char *)&boot_conn->chap.target_secret);
3893 break;
3894 case ISCSI_BOOT_TGT_REV_CHAP_NAME:
3895 rc = sprintf(str, "%.*s\n",
3896 boot_conn->chap.intr_chap_name_length,
3897 (char *)&boot_conn->chap.intr_chap_name);
3898 break;
3899 case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
3900 rc = sprintf(str, "%.*s\n",
3901 boot_conn->chap.intr_secret_length,
3902 (char *)&boot_conn->chap.intr_secret);
3903 break;
3904 case ISCSI_BOOT_TGT_FLAGS:
3905 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT);
3906 break;
3907 case ISCSI_BOOT_TGT_NIC_ASSOC:
3908 rc = sprintf(str, "0\n");
3909 break;
3910 default:
3911 rc = -ENOSYS;
3912 break;
3913 }
3914 return rc;
3915}
3916
3917static ssize_t qla4xxx_show_boot_tgt_pri_info(void *data, int type, char *buf)
3918{
3919 struct scsi_qla_host *ha = data;
3920 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_pri_sess);
3921
3922 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf);
3923}
3924
3925static ssize_t qla4xxx_show_boot_tgt_sec_info(void *data, int type, char *buf)
3926{
3927 struct scsi_qla_host *ha = data;
3928 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_sec_sess);
3929
3930 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf);
3931}
3932
587a1f16 3933static umode_t qla4xxx_tgt_get_attr_visibility(void *data, int type)
2a991c21
MR		 3934{
3935 int rc;
3936
3937 switch (type) {
3938 case ISCSI_BOOT_TGT_NAME:
3939 case ISCSI_BOOT_TGT_IP_ADDR:
3940 case ISCSI_BOOT_TGT_PORT:
3941 case ISCSI_BOOT_TGT_CHAP_NAME:
3942 case ISCSI_BOOT_TGT_CHAP_SECRET:
3943 case ISCSI_BOOT_TGT_REV_CHAP_NAME:
3944 case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
3945 case ISCSI_BOOT_TGT_NIC_ASSOC:
3946 case ISCSI_BOOT_TGT_FLAGS:
3947 rc = S_IRUGO;
3948 break;
3949 default:
3950 rc = 0;
3951 break;
3952 }
3953 return rc;
3954}
3955
3956static void qla4xxx_boot_release(void *data)
3957{
3958 struct scsi_qla_host *ha = data;
3959
3960 scsi_host_put(ha->host);
3961}
3962
3963static int get_fw_boot_info(struct scsi_qla_host *ha, uint16_t ddb_index[])
3964{
3965 dma_addr_t buf_dma;
3966 uint32_t addr, pri_addr, sec_addr;
3967 uint32_t offset;
3968 uint16_t func_num;
3969 uint8_t val;
3970 uint8_t *buf = NULL;
3971 size_t size = 13 * sizeof(uint8_t);
3972 int ret = QLA_SUCCESS;
3973
3974 func_num = PCI_FUNC(ha->pdev->devfn);
3975
0d5b36b8
MR		 3976 ql4_printk(KERN_INFO, ha, "%s: Get FW boot info for 0x%x func %d\n",
3977 __func__, ha->pdev->device, func_num);
2a991c21 3978
0d5b36b8 3979 if (is_qla40XX(ha)) {
2a991c21
MR		 3980 if (func_num == 1) {
3981 addr = NVRAM_PORT0_BOOT_MODE;
3982 pri_addr = NVRAM_PORT0_BOOT_PRI_TGT;
3983 sec_addr = NVRAM_PORT0_BOOT_SEC_TGT;
3984 } else if (func_num == 3) {
3985 addr = NVRAM_PORT1_BOOT_MODE;
3986 pri_addr = NVRAM_PORT1_BOOT_PRI_TGT;
3987 sec_addr = NVRAM_PORT1_BOOT_SEC_TGT;
3988 } else {
3989 ret = QLA_ERROR;
3990 goto exit_boot_info;
3991 }
3992
3993 /* Check Boot Mode */
3994 val = rd_nvram_byte(ha, addr);
3995 if (!(val & 0x07)) {
e8fb00e0
MR		 3996 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Adapter boot "
3997 "options : 0x%x\n", __func__, val));
2a991c21
MR		 3998 ret = QLA_ERROR;
3999 goto exit_boot_info;
4000 }
4001
4002 /* get primary valid target index */
4003 val = rd_nvram_byte(ha, pri_addr);
4004 if (val & BIT_7)
4005 ddb_index[0] = (val & 0x7f);
2a991c21
MR		 4006
4007 /* get secondary valid target index */
4008 val = rd_nvram_byte(ha, sec_addr);
4009 if (val & BIT_7)
4010 ddb_index[1] = (val & 0x7f);
2a991c21 4011
3e788fb1 4012 } else if (is_qla80XX(ha)) {
2a991c21
MR		 4013 buf = dma_alloc_coherent(&ha->pdev->dev, size,
4014 &buf_dma, GFP_KERNEL);
4015 if (!buf) {
4016 DEBUG2(ql4_printk(KERN_ERR, ha,
4017 "%s: Unable to allocate dma buffer\n",
4018 __func__));
4019 ret = QLA_ERROR;
4020 goto exit_boot_info;
4021 }
4022
4023 if (ha->port_num == 0)
4024 offset = BOOT_PARAM_OFFSET_PORT0;
4025 else if (ha->port_num == 1)
4026 offset = BOOT_PARAM_OFFSET_PORT1;
4027 else {
4028 ret = QLA_ERROR;
4029 goto exit_boot_info_free;
4030 }
4031 addr = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_iscsi_param * 4) +
4032 offset;
4033 if (qla4xxx_get_flash(ha, buf_dma, addr,
4034 13 * sizeof(uint8_t)) != QLA_SUCCESS) {
4035 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: Get Flash"
0bd7f842 4036 " failed\n", ha->host_no, __func__));
2a991c21
MR		 4037 ret = QLA_ERROR;
4038 goto exit_boot_info_free;
4039 }
4040 /* Check Boot Mode */
4041 if (!(buf[1] & 0x07)) {
e8fb00e0
MR		 4042 DEBUG2(ql4_printk(KERN_INFO, ha, "Firmware boot options"
4043 " : 0x%x\n", buf[1]));
2a991c21
MR		 4044 ret = QLA_ERROR;
4045 goto exit_boot_info_free;
4046 }
4047
4048 /* get primary valid target index */
4049 if (buf[2] & BIT_7)
4050 ddb_index[0] = buf[2] & 0x7f;
2a991c21
MR		 4051
4052 /* get secondary valid target index */
4053 if (buf[11] & BIT_7)
4054 ddb_index[1] = buf[11] & 0x7f;
2a991c21
MR		 4055 } else {
4056 ret = QLA_ERROR;
4057 goto exit_boot_info;
4058 }
4059
4060 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary target ID %d, Secondary"
4061 " target ID %d\n", __func__, ddb_index[0],
4062 ddb_index[1]));
4063
4064exit_boot_info_free:
4065 dma_free_coherent(&ha->pdev->dev, size, buf, buf_dma);
4066exit_boot_info:
20e835b4
LC		 4067 ha->pri_ddb_idx = ddb_index[0];
4068 ha->sec_ddb_idx = ddb_index[1];
2a991c21
MR		 4069 return ret;
4070}
4071
28deb45c
LC		 4072/**
4073 * qla4xxx_get_bidi_chap - Get a BIDI CHAP user and password
4074 * @ha: pointer to adapter structure
4075 * @username: CHAP username to be returned
4076 * @password: CHAP password to be returned
4077 *
4078 * If a boot entry has BIDI CHAP enabled then we need to set the BIDI CHAP
4079 * user and password in the sysfs entry in /sys/firmware/iscsi_boot#/.
4080 * So from the CHAP cache find the first BIDI CHAP entry and set it
4081 * to the boot record in sysfs.
4082 **/
4083static int qla4xxx_get_bidi_chap(struct scsi_qla_host *ha, char *username,
4084 char *password)
4085{
4086 int i, ret = -EINVAL;
4087 int max_chap_entries = 0;
4088 struct ql4_chap_table *chap_table;
4089
d11b0ca3 4090 if (is_qla80XX(ha))
28deb45c
LC		 4091 max_chap_entries = (ha->hw.flt_chap_size / 2) /
4092 sizeof(struct ql4_chap_table);
4093 else
4094 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
4095
4096 if (!ha->chap_list) {
4097 ql4_printk(KERN_ERR, ha, "Do not have CHAP table cache\n");
4098 return ret;
4099 }
4100
4101 mutex_lock(&ha->chap_sem);
4102 for (i = 0; i < max_chap_entries; i++) {
4103 chap_table = (struct ql4_chap_table *)ha->chap_list + i;
4104 if (chap_table->cookie !=
4105 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) {
4106 continue;
4107 }
4108
4109 if (chap_table->flags & BIT_7) /* local */
4110 continue;
4111
4112 if (!(chap_table->flags & BIT_6)) /* Not BIDI */
4113 continue;
4114
4115 strncpy(password, chap_table->secret, QL4_CHAP_MAX_SECRET_LEN);
4116 strncpy(username, chap_table->name, QL4_CHAP_MAX_NAME_LEN);
4117 ret = 0;
4118 break;
4119 }
4120 mutex_unlock(&ha->chap_sem);
4121
4122 return ret;
4123}
4124
4125
2a991c21
MR		 4126static int qla4xxx_get_boot_target(struct scsi_qla_host *ha,
4127 struct ql4_boot_session_info *boot_sess,
4128 uint16_t ddb_index)
4129{
4130 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0];
4131 struct dev_db_entry *fw_ddb_entry;
4132 dma_addr_t fw_ddb_entry_dma;
4133 uint16_t idx;
4134 uint16_t options;
4135 int ret = QLA_SUCCESS;
4136
4137 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
4138 &fw_ddb_entry_dma, GFP_KERNEL);
4139 if (!fw_ddb_entry) {
4140 DEBUG2(ql4_printk(KERN_ERR, ha,
4141 "%s: Unable to allocate dma buffer.\n",
4142 __func__));
4143 ret = QLA_ERROR;
4144 return ret;
4145 }
4146
4147 if (qla4xxx_bootdb_by_index(ha, fw_ddb_entry,
4148 fw_ddb_entry_dma, ddb_index)) {
e8fb00e0
MR		 4149 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: No Flash DDB found at "
4150 "index [%d]\n", __func__, ddb_index));
2a991c21
MR		 4151 ret = QLA_ERROR;
4152 goto exit_boot_target;
4153 }
4154
4155 /* Update target name and IP from DDB */
4156 memcpy(boot_sess->target_name, fw_ddb_entry->iscsi_name,
4157 min(sizeof(boot_sess->target_name),
4158 sizeof(fw_ddb_entry->iscsi_name)));
4159
4160 options = le16_to_cpu(fw_ddb_entry->options);
4161 if (options & DDB_OPT_IPV6_DEVICE) {
4162 memcpy(&boot_conn->dest_ipaddr.ip_address,
4163 &fw_ddb_entry->ip_addr[0], IPv6_ADDR_LEN);
4164 } else {
4165 boot_conn->dest_ipaddr.ip_type = 0x1;
4166 memcpy(&boot_conn->dest_ipaddr.ip_address,
4167 &fw_ddb_entry->ip_addr[0], IP_ADDR_LEN);
4168 }
4169
4170 boot_conn->dest_port = le16_to_cpu(fw_ddb_entry->port);
4171
4172 /* update chap information */
4173 idx = __le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
4174
4175 if (BIT_7 & le16_to_cpu(fw_ddb_entry->iscsi_options)) {
4176
4177 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting chap\n"));
4178
4179 ret = qla4xxx_get_chap(ha, (char *)&boot_conn->chap.
4180 target_chap_name,
4181 (char *)&boot_conn->chap.target_secret,
4182 idx);
4183 if (ret) {
4184 ql4_printk(KERN_ERR, ha, "Failed to set chap\n");
4185 ret = QLA_ERROR;
4186 goto exit_boot_target;
4187 }
4188
4189 boot_conn->chap.target_chap_name_length = QL4_CHAP_MAX_NAME_LEN;
4190 boot_conn->chap.target_secret_length = QL4_CHAP_MAX_SECRET_LEN;
4191 }
4192
4193 if (BIT_4 & le16_to_cpu(fw_ddb_entry->iscsi_options)) {
4194
4195 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting BIDI chap\n"));
4196
28deb45c
LC		 4197 ret = qla4xxx_get_bidi_chap(ha,
4198 (char *)&boot_conn->chap.intr_chap_name,
4199 (char *)&boot_conn->chap.intr_secret);
4200
2a991c21
MR		 4201 if (ret) {
4202 ql4_printk(KERN_ERR, ha, "Failed to set BIDI chap\n");
4203 ret = QLA_ERROR;
4204 goto exit_boot_target;
4205 }
4206
4207 boot_conn->chap.intr_chap_name_length = QL4_CHAP_MAX_NAME_LEN;
4208 boot_conn->chap.intr_secret_length = QL4_CHAP_MAX_SECRET_LEN;
4209 }
4210
4211exit_boot_target:
4212 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
4213 fw_ddb_entry, fw_ddb_entry_dma);
4214 return ret;
4215}
4216
4217static int qla4xxx_get_boot_info(struct scsi_qla_host *ha)
4218{
4219 uint16_t ddb_index[2];
8de5b958
LC		 4220 int ret = QLA_ERROR;
4221 int rval;
2a991c21
MR		 4222
4223 memset(ddb_index, 0, sizeof(ddb_index));
8de5b958
LC		 4224 ddb_index[0] = 0xffff;
4225 ddb_index[1] = 0xffff;
2a991c21
MR		 4226 ret = get_fw_boot_info(ha, ddb_index);
4227 if (ret != QLA_SUCCESS) {
e8fb00e0
MR		 4228 DEBUG2(ql4_printk(KERN_INFO, ha,
4229 "%s: No boot target configured.\n", __func__));
2a991c21
MR		 4230 return ret;
4231 }
4232
13483730
MC		 4233 if (ql4xdisablesysfsboot)
4234 return QLA_SUCCESS;
4235
8de5b958
LC		 4236 if (ddb_index[0] == 0xffff)
4237 goto sec_target;
4238
4239 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_pri_sess),
2a991c21 4240 ddb_index[0]);
8de5b958 4241 if (rval != QLA_SUCCESS) {
e8fb00e0
MR		 4242 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary boot target not "
4243 "configured\n", __func__));
8de5b958
LC		 4244 } else
4245 ret = QLA_SUCCESS;
2a991c21 4246
8de5b958
LC		 4247sec_target:
4248 if (ddb_index[1] == 0xffff)
4249 goto exit_get_boot_info;
4250
4251 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_sec_sess),
2a991c21 4252 ddb_index[1]);
8de5b958 4253 if (rval != QLA_SUCCESS) {
e8fb00e0
MR		 4254 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Secondary boot target not"
4255 " configured\n", __func__));
8de5b958
LC		 4256 } else
4257 ret = QLA_SUCCESS;
4258
4259exit_get_boot_info:
2a991c21
MR		 4260 return ret;
4261}
4262
4263static int qla4xxx_setup_boot_info(struct scsi_qla_host *ha)
4264{
4265 struct iscsi_boot_kobj *boot_kobj;
4266
4267 if (qla4xxx_get_boot_info(ha) != QLA_SUCCESS)
13483730
MC		 4268 return QLA_ERROR;
4269
4270 if (ql4xdisablesysfsboot) {
4271 ql4_printk(KERN_INFO, ha,
0bd7f842 4272 "%s: syfsboot disabled - driver will trigger login "
13483730
MC		 4273 "and publish session for discovery .\n", __func__);
4274 return QLA_SUCCESS;
4275 }
4276
2a991c21
MR		 4277
4278 ha->boot_kset = iscsi_boot_create_host_kset(ha->host->host_no);
4279 if (!ha->boot_kset)
4280 goto kset_free;
4281
4282 if (!scsi_host_get(ha->host))
4283 goto kset_free;
4284 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 0, ha,
4285 qla4xxx_show_boot_tgt_pri_info,
4286 qla4xxx_tgt_get_attr_visibility,
4287 qla4xxx_boot_release);
4288 if (!boot_kobj)
4289 goto put_host;
4290
4291 if (!scsi_host_get(ha->host))
4292 goto kset_free;
4293 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 1, ha,
4294 qla4xxx_show_boot_tgt_sec_info,
4295 qla4xxx_tgt_get_attr_visibility,
4296 qla4xxx_boot_release);
4297 if (!boot_kobj)
4298 goto put_host;
4299
4300 if (!scsi_host_get(ha->host))
4301 goto kset_free;
4302 boot_kobj = iscsi_boot_create_initiator(ha->boot_kset, 0, ha,
4303 qla4xxx_show_boot_ini_info,
4304 qla4xxx_ini_get_attr_visibility,
4305 qla4xxx_boot_release);
4306 if (!boot_kobj)
4307 goto put_host;
4308
4309 if (!scsi_host_get(ha->host))
4310 goto kset_free;
4311 boot_kobj = iscsi_boot_create_ethernet(ha->boot_kset, 0, ha,
4312 qla4xxx_show_boot_eth_info,
4313 qla4xxx_eth_get_attr_visibility,
4314 qla4xxx_boot_release);
4315 if (!boot_kobj)
4316 goto put_host;
4317
13483730 4318 return QLA_SUCCESS;
2a991c21
MR		 4319
4320put_host:
4321 scsi_host_put(ha->host);
4322kset_free:
4323 iscsi_boot_destroy_kset(ha->boot_kset);
4324 return -ENOMEM;
4325}
4326
4549415a
LC		 4327
4328/**
4329 * qla4xxx_create chap_list - Create CHAP list from FLASH
4330 * @ha: pointer to adapter structure
4331 *
4332 * Read flash and make a list of CHAP entries, during login when a CHAP entry
4333 * is received, it will be checked in this list. If entry exist then the CHAP
4334 * entry index is set in the DDB. If CHAP entry does not exist in this list
4335 * then a new entry is added in FLASH in CHAP table and the index obtained is
4336 * used in the DDB.
4337 **/
4338static void qla4xxx_create_chap_list(struct scsi_qla_host *ha)
4339{
4340 int rval = 0;
4341 uint8_t *chap_flash_data = NULL;
4342 uint32_t offset;
4343 dma_addr_t chap_dma;
4344 uint32_t chap_size = 0;
4345
4346 if (is_qla40XX(ha))
4347 chap_size = MAX_CHAP_ENTRIES_40XX *
4348 sizeof(struct ql4_chap_table);
4349 else /* Single region contains CHAP info for both
4350 * ports which is divided into half for each port.
4351 */
4352 chap_size = ha->hw.flt_chap_size / 2;
4353
4354 chap_flash_data = dma_alloc_coherent(&ha->pdev->dev, chap_size,
4355 &chap_dma, GFP_KERNEL);
4356 if (!chap_flash_data) {
4357 ql4_printk(KERN_ERR, ha, "No memory for chap_flash_data\n");
4358 return;
4359 }
4360 if (is_qla40XX(ha))
4361 offset = FLASH_CHAP_OFFSET;
4362 else {
4363 offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2);
4364 if (ha->port_num == 1)
4365 offset += chap_size;
4366 }
4367
4368 rval = qla4xxx_get_flash(ha, chap_dma, offset, chap_size);
4369 if (rval != QLA_SUCCESS)
4370 goto exit_chap_list;
4371
4372 if (ha->chap_list == NULL)
4373 ha->chap_list = vmalloc(chap_size);
4374 if (ha->chap_list == NULL) {
4375 ql4_printk(KERN_ERR, ha, "No memory for ha->chap_list\n");
4376 goto exit_chap_list;
4377 }
4378
4379 memcpy(ha->chap_list, chap_flash_data, chap_size);
4380
4381exit_chap_list:
4382 dma_free_coherent(&ha->pdev->dev, chap_size,
4383 chap_flash_data, chap_dma);
4549415a
LC		 4384}
4385
13483730
MC		 4386static void qla4xxx_get_param_ddb(struct ddb_entry *ddb_entry,
4387 struct ql4_tuple_ddb *tddb)
4388{
4389 struct scsi_qla_host *ha;
4390 struct iscsi_cls_session *cls_sess;
4391 struct iscsi_cls_conn *cls_conn;
4392 struct iscsi_session *sess;
4393 struct iscsi_conn *conn;
4394
4395 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
4396 ha = ddb_entry->ha;
4397 cls_sess = ddb_entry->sess;
4398 sess = cls_sess->dd_data;
4399 cls_conn = ddb_entry->conn;
4400 conn = cls_conn->dd_data;
4401
4402 tddb->tpgt = sess->tpgt;
4403 tddb->port = conn->persistent_port;
4404 strncpy(tddb->iscsi_name, sess->targetname, ISCSI_NAME_SIZE);
4405 strncpy(tddb->ip_addr, conn->persistent_address, DDB_IPADDR_LEN);
4406}
4407
4408static void qla4xxx_convert_param_ddb(struct dev_db_entry *fw_ddb_entry,
1cb78d73
VC		 4409 struct ql4_tuple_ddb *tddb,
4410 uint8_t *flash_isid)
13483730
MC		 4411{
4412 uint16_t options = 0;
4413
4414 tddb->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
4415 memcpy(&tddb->iscsi_name[0], &fw_ddb_entry->iscsi_name[0],
4416 min(sizeof(tddb->iscsi_name), sizeof(fw_ddb_entry->iscsi_name)));
4417
4418 options = le16_to_cpu(fw_ddb_entry->options);
4419 if (options & DDB_OPT_IPV6_DEVICE)
4420 sprintf(tddb->ip_addr, "%pI6", fw_ddb_entry->ip_addr);
4421 else
4422 sprintf(tddb->ip_addr, "%pI4", fw_ddb_entry->ip_addr);
4423
4424 tddb->port = le16_to_cpu(fw_ddb_entry->port);
1cb78d73
VC		 4425
4426 if (flash_isid == NULL)
4427 memcpy(&tddb->isid[0], &fw_ddb_entry->isid[0],
4428 sizeof(tddb->isid));
4429 else
4430 memcpy(&tddb->isid[0], &flash_isid[0], sizeof(tddb->isid));
13483730
MC		 4431}
4432
4433static int qla4xxx_compare_tuple_ddb(struct scsi_qla_host *ha,
4434 struct ql4_tuple_ddb *old_tddb,
173269ef
MR		 4435 struct ql4_tuple_ddb *new_tddb,
4436 uint8_t is_isid_compare)
13483730
MC		 4437{
4438 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name))
4439 return QLA_ERROR;
4440
4441 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr))
4442 return QLA_ERROR;
4443
4444 if (old_tddb->port != new_tddb->port)
4445 return QLA_ERROR;
4446
173269ef 4447 /* For multi sessions, driver generates the ISID, so do not compare
59e13d48 4448 * ISID in reset path since it would be a comparison between the
173269ef
MR		 4449 * driver generated ISID and firmware generated ISID. This could
4450 * lead to adding duplicated DDBs in the list as driver generated
4451 * ISID would not match firmware generated ISID.
4452 */
4453 if (is_isid_compare) {
4454 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: old ISID [%02x%02x%02x"
4455 "%02x%02x%02x] New ISID [%02x%02x%02x%02x%02x%02x]\n",
4456 __func__, old_tddb->isid[5], old_tddb->isid[4],
4457 old_tddb->isid[3], old_tddb->isid[2], old_tddb->isid[1],
4458 old_tddb->isid[0], new_tddb->isid[5], new_tddb->isid[4],
4459 new_tddb->isid[3], new_tddb->isid[2], new_tddb->isid[1],
4460 new_tddb->isid[0]));
4461
4462 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0],
4463 sizeof(old_tddb->isid)))
4464 return QLA_ERROR;
4465 }
4466
13483730
MC		 4467 DEBUG2(ql4_printk(KERN_INFO, ha,
4468 "Match Found, fw[%d,%d,%s,%s], [%d,%d,%s,%s]",
4469 old_tddb->port, old_tddb->tpgt, old_tddb->ip_addr,
4470 old_tddb->iscsi_name, new_tddb->port, new_tddb->tpgt,
4471 new_tddb->ip_addr, new_tddb->iscsi_name));
4472
4473 return QLA_SUCCESS;
4474}
4475
4476static int qla4xxx_is_session_exists(struct scsi_qla_host *ha,
4477 struct dev_db_entry *fw_ddb_entry)
4478{
4479 struct ddb_entry *ddb_entry;
4480 struct ql4_tuple_ddb *fw_tddb = NULL;
4481 struct ql4_tuple_ddb *tmp_tddb = NULL;
4482 int idx;
4483 int ret = QLA_ERROR;
4484
4485 fw_tddb = vzalloc(sizeof(*fw_tddb));
4486 if (!fw_tddb) {
4487 DEBUG2(ql4_printk(KERN_WARNING, ha,
4488 "Memory Allocation failed.\n"));
4489 ret = QLA_SUCCESS;
4490 goto exit_check;
4491 }
4492
4493 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
4494 if (!tmp_tddb) {
4495 DEBUG2(ql4_printk(KERN_WARNING, ha,
4496 "Memory Allocation failed.\n"));
4497 ret = QLA_SUCCESS;
4498 goto exit_check;
4499 }
4500
1cb78d73 4501 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL);
13483730
MC		 4502
4503 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
4504 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
4505 if (ddb_entry == NULL)
4506 continue;
4507
4508 qla4xxx_get_param_ddb(ddb_entry, tmp_tddb);
173269ef 4509 if (!qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, false)) {
13483730
MC		 4510 ret = QLA_SUCCESS; /* found */
4511 goto exit_check;
4512 }
4513 }
4514
4515exit_check:
4516 if (fw_tddb)
4517 vfree(fw_tddb);
4518 if (tmp_tddb)
4519 vfree(tmp_tddb);
4520 return ret;
4521}
4522
1cb78d73
VC		 4523/**
4524 * qla4xxx_check_existing_isid - check if target with same isid exist
4525 * in target list
4526 * @list_nt: list of target
4527 * @isid: isid to check
4528 *
4529 * This routine return QLA_SUCCESS if target with same isid exist
4530 **/
4531static int qla4xxx_check_existing_isid(struct list_head *list_nt, uint8_t *isid)
4532{
4533 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp;
4534 struct dev_db_entry *fw_ddb_entry;
4535
4536 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
4537 fw_ddb_entry = &nt_ddb_idx->fw_ddb;
4538
4539 if (memcmp(&fw_ddb_entry->isid[0], &isid[0],
4540 sizeof(nt_ddb_idx->fw_ddb.isid)) == 0) {
4541 return QLA_SUCCESS;
4542 }
4543 }
4544 return QLA_ERROR;
4545}
4546
4547/**
4548 * qla4xxx_update_isid - compare ddbs and updated isid
4549 * @ha: Pointer to host adapter structure.
4550 * @list_nt: list of nt target
4551 * @fw_ddb_entry: firmware ddb entry
4552 *
4553 * This routine update isid if ddbs have same iqn, same isid and
4554 * different IP addr.
4555 * Return QLA_SUCCESS if isid is updated.
4556 **/
4557static int qla4xxx_update_isid(struct scsi_qla_host *ha,
4558 struct list_head *list_nt,
4559 struct dev_db_entry *fw_ddb_entry)
4560{
4561 uint8_t base_value, i;
4562
4563 base_value = fw_ddb_entry->isid[1] & 0x1f;
4564 for (i = 0; i < 8; i++) {
4565 fw_ddb_entry->isid[1] = (base_value | (i << 5));
4566 if (qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid))
4567 break;
4568 }
4569
4570 if (!qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid))
4571 return QLA_ERROR;
4572
4573 return QLA_SUCCESS;
4574}
4575
4576/**
4577 * qla4xxx_should_update_isid - check if isid need to update
4578 * @ha: Pointer to host adapter structure.
4579 * @old_tddb: ddb tuple
4580 * @new_tddb: ddb tuple
4581 *
4582 * Return QLA_SUCCESS if different IP, different PORT, same iqn,
4583 * same isid
4584 **/
4585static int qla4xxx_should_update_isid(struct scsi_qla_host *ha,
4586 struct ql4_tuple_ddb *old_tddb,
4587 struct ql4_tuple_ddb *new_tddb)
4588{
4589 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr) == 0) {
4590 /* Same ip */
4591 if (old_tddb->port == new_tddb->port)
4592 return QLA_ERROR;
4593 }
4594
4595 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name))
4596 /* different iqn */
4597 return QLA_ERROR;
4598
4599 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0],
4600 sizeof(old_tddb->isid)))
4601 /* different isid */
4602 return QLA_ERROR;
4603
4604 return QLA_SUCCESS;
4605}
4606
4607/**
4608 * qla4xxx_is_flash_ddb_exists - check if fw_ddb_entry already exists in list_nt
4609 * @ha: Pointer to host adapter structure.
4610 * @list_nt: list of nt target.
4611 * @fw_ddb_entry: firmware ddb entry.
4612 *
4613 * This routine check if fw_ddb_entry already exists in list_nt to avoid
4614 * duplicate ddb in list_nt.
4615 * Return QLA_SUCCESS if duplicate ddb exit in list_nl.
4616 * Note: This function also update isid of DDB if required.
4617 **/
4618
13483730
MC		 4619static int qla4xxx_is_flash_ddb_exists(struct scsi_qla_host *ha,
4620 struct list_head *list_nt,
4621 struct dev_db_entry *fw_ddb_entry)
4622{
4623 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp;
4624 struct ql4_tuple_ddb *fw_tddb = NULL;
4625 struct ql4_tuple_ddb *tmp_tddb = NULL;
1cb78d73 4626 int rval, ret = QLA_ERROR;
13483730
MC		 4627
4628 fw_tddb = vzalloc(sizeof(*fw_tddb));
4629 if (!fw_tddb) {
4630 DEBUG2(ql4_printk(KERN_WARNING, ha,
4631 "Memory Allocation failed.\n"));
4632 ret = QLA_SUCCESS;
4633 goto exit_check;
4634 }
4635
4636 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
4637 if (!tmp_tddb) {
4638 DEBUG2(ql4_printk(KERN_WARNING, ha,
4639 "Memory Allocation failed.\n"));
4640 ret = QLA_SUCCESS;
4641 goto exit_check;
4642 }
4643
1cb78d73 4644 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL);
13483730
MC		 4645
4646 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
1cb78d73
VC		 4647 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb,
4648 nt_ddb_idx->flash_isid);
4649 ret = qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, true);
4650 /* found duplicate ddb */
4651 if (ret == QLA_SUCCESS)
4652 goto exit_check;
4653 }
4654
4655 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
4656 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb, NULL);
4657
4658 ret = qla4xxx_should_update_isid(ha, tmp_tddb, fw_tddb);
4659 if (ret == QLA_SUCCESS) {
4660 rval = qla4xxx_update_isid(ha, list_nt, fw_ddb_entry);
4661 if (rval == QLA_SUCCESS)
4662 ret = QLA_ERROR;
4663 else
4664 ret = QLA_SUCCESS;
4665
13483730
MC		 4666 goto exit_check;
4667 }
4668 }
4669
4670exit_check:
4671 if (fw_tddb)
4672 vfree(fw_tddb);
4673 if (tmp_tddb)
4674 vfree(tmp_tddb);
4675 return ret;
4676}
4677
4a4bc2e9 4678static void qla4xxx_free_ddb_list(struct list_head *list_ddb)
13483730 4679{
4a4bc2e9 4680 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
13483730 4681
4a4bc2e9
LC		 4682 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
4683 list_del_init(&ddb_idx->list);
4684 vfree(ddb_idx);
13483730 4685 }
13483730
MC		 4686}
4687
4688static struct iscsi_endpoint *qla4xxx_get_ep_fwdb(struct scsi_qla_host *ha,
4689 struct dev_db_entry *fw_ddb_entry)
4690{
4691 struct iscsi_endpoint *ep;
4692 struct sockaddr_in *addr;
4693 struct sockaddr_in6 *addr6;
3dd4849c
MR		 4694 struct sockaddr *t_addr;
4695 struct sockaddr_storage *dst_addr;
13483730
MC		 4696 char *ip;
4697
4698 /* TODO: need to destroy on unload iscsi_endpoint*/
4699 dst_addr = vmalloc(sizeof(*dst_addr));
4700 if (!dst_addr)
4701 return NULL;
4702
4703 if (fw_ddb_entry->options & DDB_OPT_IPV6_DEVICE) {
3dd4849c
MR		 4704 t_addr = (struct sockaddr *)dst_addr;
4705 t_addr->sa_family = AF_INET6;
13483730
MC		 4706 addr6 = (struct sockaddr_in6 *)dst_addr;
4707 ip = (char *)&addr6->sin6_addr;
4708 memcpy(ip, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN);
4709 addr6->sin6_port = htons(le16_to_cpu(fw_ddb_entry->port));
4710
4711 } else {
3dd4849c
MR		 4712 t_addr = (struct sockaddr *)dst_addr;
4713 t_addr->sa_family = AF_INET;
13483730
MC		 4714 addr = (struct sockaddr_in *)dst_addr;
4715 ip = (char *)&addr->sin_addr;
4716 memcpy(ip, fw_ddb_entry->ip_addr, IP_ADDR_LEN);
4717 addr->sin_port = htons(le16_to_cpu(fw_ddb_entry->port));
4718 }
4719
3dd4849c 4720 ep = qla4xxx_ep_connect(ha->host, (struct sockaddr *)dst_addr, 0);
13483730
MC		 4721 vfree(dst_addr);
4722 return ep;
4723}
4724
4725static int qla4xxx_verify_boot_idx(struct scsi_qla_host *ha, uint16_t idx)
4726{
4727 if (ql4xdisablesysfsboot)
4728 return QLA_SUCCESS;
4729 if (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx)
4730 return QLA_ERROR;
4731 return QLA_SUCCESS;
4732}
4733
4734static void qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha,
1dc8ed5d
MR		 4735 struct ddb_entry *ddb_entry,
4736 uint16_t idx)
13483730 4737{
c28eaaca
NJ		 4738 uint16_t def_timeout;
4739
13483730
MC		 4740 ddb_entry->ddb_type = FLASH_DDB;
4741 ddb_entry->fw_ddb_index = INVALID_ENTRY;
4742 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE;
4743 ddb_entry->ha = ha;
4744 ddb_entry->unblock_sess = qla4xxx_unblock_flash_ddb;
4745 ddb_entry->ddb_change = qla4xxx_flash_ddb_change;
4746
4747 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY);
4748 atomic_set(&ddb_entry->relogin_timer, 0);
4749 atomic_set(&ddb_entry->relogin_retry_count, 0);
c28eaaca 4750 def_timeout = le16_to_cpu(ddb_entry->fw_ddb_entry.def_timeout);
13483730 4751 ddb_entry->default_relogin_timeout =
c28eaaca
NJ		 4752 (def_timeout > LOGIN_TOV) && (def_timeout < LOGIN_TOV * 10) ?
4753 def_timeout : LOGIN_TOV;
13483730
MC		 4754 ddb_entry->default_time2wait =
4755 le16_to_cpu(ddb_entry->fw_ddb_entry.iscsi_def_time2wait);
1dc8ed5d
MR		 4756
4757 if (ql4xdisablesysfsboot &&
4758 (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx))
4759 set_bit(DF_BOOT_TGT, &ddb_entry->flags);
13483730
MC		 4760}
4761
4762static void qla4xxx_wait_for_ip_configuration(struct scsi_qla_host *ha)
4763{
4764 uint32_t idx = 0;
4765 uint32_t ip_idx[IP_ADDR_COUNT] = {0, 1, 2, 3}; /* 4 IP interfaces */
4766 uint32_t sts[MBOX_REG_COUNT];
4767 uint32_t ip_state;
4768 unsigned long wtime;
4769 int ret;
4770
4771 wtime = jiffies + (HZ * IP_CONFIG_TOV);
4772 do {
4773 for (idx = 0; idx < IP_ADDR_COUNT; idx++) {
4774 if (ip_idx[idx] == -1)
4775 continue;
4776
4777 ret = qla4xxx_get_ip_state(ha, 0, ip_idx[idx], sts);
4778
4779 if (ret == QLA_ERROR) {
4780 ip_idx[idx] = -1;
4781 continue;
4782 }
4783
4784 ip_state = (sts[1] & IP_STATE_MASK) >> IP_STATE_SHIFT;
4785
4786 DEBUG2(ql4_printk(KERN_INFO, ha,
4787 "Waiting for IP state for idx = %d, state = 0x%x\n",
4788 ip_idx[idx], ip_state));
4789 if (ip_state == IP_ADDRSTATE_UNCONFIGURED ||
4790 ip_state == IP_ADDRSTATE_INVALID ||
4791 ip_state == IP_ADDRSTATE_PREFERRED ||
4792 ip_state == IP_ADDRSTATE_DEPRICATED ||
4793 ip_state == IP_ADDRSTATE_DISABLING)
4794 ip_idx[idx] = -1;
13483730
MC		 4795 }
4796
4797 /* Break if all IP states checked */
4798 if ((ip_idx[0] == -1) &&
4799 (ip_idx[1] == -1) &&
4800 (ip_idx[2] == -1) &&
4801 (ip_idx[3] == -1))
4802 break;
4803 schedule_timeout_uninterruptible(HZ);
4804 } while (time_after(wtime, jiffies));
4805}
4806
4a4bc2e9
LC		 4807static void qla4xxx_build_st_list(struct scsi_qla_host *ha,
4808 struct list_head *list_st)
13483730 4809{
4a4bc2e9 4810 struct qla_ddb_index *st_ddb_idx;
13483730 4811 int max_ddbs;
4a4bc2e9
LC		 4812 int fw_idx_size;
4813 struct dev_db_entry *fw_ddb_entry;
4814 dma_addr_t fw_ddb_dma;
13483730
MC		 4815 int ret;
4816 uint32_t idx = 0, next_idx = 0;
4817 uint32_t state = 0, conn_err = 0;
4a4bc2e9 4818 uint16_t conn_id = 0;
13483730
MC		 4819
4820 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
4821 &fw_ddb_dma);
4822 if (fw_ddb_entry == NULL) {
4823 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
4a4bc2e9 4824 goto exit_st_list;
13483730
MC		 4825 }
4826
4a4bc2e9
LC		 4827 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
4828 MAX_DEV_DB_ENTRIES;
13483730
MC		 4829 fw_idx_size = sizeof(struct qla_ddb_index);
4830
4831 for (idx = 0; idx < max_ddbs; idx = next_idx) {
4a4bc2e9
LC		 4832 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
4833 NULL, &next_idx, &state,
4834 &conn_err, NULL, &conn_id);
13483730
MC		 4835 if (ret == QLA_ERROR)
4836 break;
4837
981c982c
LC		 4838 /* Ignore DDB if invalid state (unassigned) */
4839 if (state == DDB_DS_UNASSIGNED)
4840 goto continue_next_st;
4841
13483730
MC		 4842 /* Check if ST, add to the list_st */
4843 if (strlen((char *) fw_ddb_entry->iscsi_name) != 0)
4844 goto continue_next_st;
4845
4846 st_ddb_idx = vzalloc(fw_idx_size);
4847 if (!st_ddb_idx)
4848 break;
4849
4850 st_ddb_idx->fw_ddb_idx = idx;
4851
4a4bc2e9 4852 list_add_tail(&st_ddb_idx->list, list_st);
13483730
MC		 4853continue_next_st:
4854 if (next_idx == 0)
4855 break;
4856 }
4857
4a4bc2e9
LC		 4858exit_st_list:
4859 if (fw_ddb_entry)
4860 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
4861}
4862
4863/**
4864 * qla4xxx_remove_failed_ddb - Remove inactive or failed ddb from list
4865 * @ha: pointer to adapter structure
4866 * @list_ddb: List from which failed ddb to be removed
4867 *
4868 * Iterate over the list of DDBs and find and remove DDBs that are either in
4869 * no connection active state or failed state
4870 **/
4871static void qla4xxx_remove_failed_ddb(struct scsi_qla_host *ha,
4872 struct list_head *list_ddb)
4873{
4874 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
4875 uint32_t next_idx = 0;
4876 uint32_t state = 0, conn_err = 0;
4877 int ret;
4878
4879 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
4880 ret = qla4xxx_get_fwddb_entry(ha, ddb_idx->fw_ddb_idx,
4881 NULL, 0, NULL, &next_idx, &state,
4882 &conn_err, NULL, NULL);
4883 if (ret == QLA_ERROR)
4884 continue;
4885
4886 if (state == DDB_DS_NO_CONNECTION_ACTIVE ||
4887 state == DDB_DS_SESSION_FAILED) {
4888 list_del_init(&ddb_idx->list);
4889 vfree(ddb_idx);
4890 }
4891 }
4892}
4893
4894static int qla4xxx_sess_conn_setup(struct scsi_qla_host *ha,
4895 struct dev_db_entry *fw_ddb_entry,
1dc8ed5d 4896 int is_reset, uint16_t idx)
4a4bc2e9
LC		 4897{
4898 struct iscsi_cls_session *cls_sess;
4899 struct iscsi_session *sess;
4900 struct iscsi_cls_conn *cls_conn;
4901 struct iscsi_endpoint *ep;
4902 uint16_t cmds_max = 32;
4903 uint16_t conn_id = 0;
4904 uint32_t initial_cmdsn = 0;
4905 int ret = QLA_SUCCESS;
4906
4907 struct ddb_entry *ddb_entry = NULL;
4908
4909 /* Create session object, with INVALID_ENTRY,
4910 * the targer_id would get set when we issue the login
13483730 4911 */
4a4bc2e9
LC		 4912 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, ha->host,
4913 cmds_max, sizeof(struct ddb_entry),
4914 sizeof(struct ql4_task_data),
4915 initial_cmdsn, INVALID_ENTRY);
4916 if (!cls_sess) {
4917 ret = QLA_ERROR;
4918 goto exit_setup;
4919 }
13483730 4920
4a4bc2e9
LC		 4921 /*
4922 * so calling module_put function to decrement the
4923 * reference count.
4924 **/
4925 module_put(qla4xxx_iscsi_transport.owner);
4926 sess = cls_sess->dd_data;
4927 ddb_entry = sess->dd_data;
4928 ddb_entry->sess = cls_sess;
4929
4930 cls_sess->recovery_tmo = ql4xsess_recovery_tmo;
4931 memcpy(&ddb_entry->fw_ddb_entry, fw_ddb_entry,
4932 sizeof(struct dev_db_entry));
4933
1dc8ed5d 4934 qla4xxx_setup_flash_ddb_entry(ha, ddb_entry, idx);
4a4bc2e9
LC		 4935
4936 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), conn_id);
4937
4938 if (!cls_conn) {
4939 ret = QLA_ERROR;
4940 goto exit_setup;
13483730
MC		 4941 }
4942
4a4bc2e9 4943 ddb_entry->conn = cls_conn;
13483730 4944
4a4bc2e9
LC		 4945 /* Setup ep, for displaying attributes in sysfs */
4946 ep = qla4xxx_get_ep_fwdb(ha, fw_ddb_entry);
4947 if (ep) {
4948 ep->conn = cls_conn;
4949 cls_conn->ep = ep;
4950 } else {
4951 DEBUG2(ql4_printk(KERN_ERR, ha, "Unable to get ep\n"));
4952 ret = QLA_ERROR;
4953 goto exit_setup;
4954 }
13483730 4955
4a4bc2e9
LC		 4956 /* Update sess/conn params */
4957 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn);
13483730 4958
4a4bc2e9
LC		 4959 if (is_reset == RESET_ADAPTER) {
4960 iscsi_block_session(cls_sess);
4961 /* Use the relogin path to discover new devices
4962 * by short-circuting the logic of setting
4963 * timer to relogin - instead set the flags
4964 * to initiate login right away.
4965 */
4966 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
4967 set_bit(DF_RELOGIN, &ddb_entry->flags);
4968 }
4969
4970exit_setup:
4971 return ret;
4972}
4973
4974static void qla4xxx_build_nt_list(struct scsi_qla_host *ha,
4975 struct list_head *list_nt, int is_reset)
4976{
4977 struct dev_db_entry *fw_ddb_entry;
4978 dma_addr_t fw_ddb_dma;
4979 int max_ddbs;
4980 int fw_idx_size;
4981 int ret;
4982 uint32_t idx = 0, next_idx = 0;
4983 uint32_t state = 0, conn_err = 0;
4984 uint16_t conn_id = 0;
4985 struct qla_ddb_index *nt_ddb_idx;
4986
4987 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
4988 &fw_ddb_dma);
4989 if (fw_ddb_entry == NULL) {
4990 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
4991 goto exit_nt_list;
13483730 4992 }
4a4bc2e9
LC		 4993 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
4994 MAX_DEV_DB_ENTRIES;
4995 fw_idx_size = sizeof(struct qla_ddb_index);
13483730
MC		 4996
4997 for (idx = 0; idx < max_ddbs; idx = next_idx) {
4a4bc2e9
LC		 4998 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
4999 NULL, &next_idx, &state,
5000 &conn_err, NULL, &conn_id);
13483730
MC		 5001 if (ret == QLA_ERROR)
5002 break;
5003
5004 if (qla4xxx_verify_boot_idx(ha, idx) != QLA_SUCCESS)
5005 goto continue_next_nt;
5006
5007 /* Check if NT, then add to list it */
5008 if (strlen((char *) fw_ddb_entry->iscsi_name) == 0)
5009 goto continue_next_nt;
5010
4a4bc2e9
LC		 5011 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE ||
5012 state == DDB_DS_SESSION_FAILED))
5013 goto continue_next_nt;
13483730 5014
4a4bc2e9
LC		 5015 DEBUG2(ql4_printk(KERN_INFO, ha,
5016 "Adding DDB to session = 0x%x\n", idx));
5017 if (is_reset == INIT_ADAPTER) {
5018 nt_ddb_idx = vmalloc(fw_idx_size);
5019 if (!nt_ddb_idx)
5020 break;
13483730 5021
4a4bc2e9 5022 nt_ddb_idx->fw_ddb_idx = idx;
13483730 5023
1cb78d73
VC		 5024 /* Copy original isid as it may get updated in function
5025 * qla4xxx_update_isid(). We need original isid in
5026 * function qla4xxx_compare_tuple_ddb to find duplicate
5027 * target */
5028 memcpy(&nt_ddb_idx->flash_isid[0],
5029 &fw_ddb_entry->isid[0],
5030 sizeof(nt_ddb_idx->flash_isid));
5031
5032 ret = qla4xxx_is_flash_ddb_exists(ha, list_nt,
5033 fw_ddb_entry);
5034 if (ret == QLA_SUCCESS) {
5035 /* free nt_ddb_idx and do not add to list_nt */
4a4bc2e9
LC		 5036 vfree(nt_ddb_idx);
5037 goto continue_next_nt;
13483730 5038 }
1cb78d73
VC		 5039
5040 /* Copy updated isid */
5041 memcpy(&nt_ddb_idx->fw_ddb, fw_ddb_entry,
5042 sizeof(struct dev_db_entry));
5043
4a4bc2e9
LC		 5044 list_add_tail(&nt_ddb_idx->list, list_nt);
5045 } else if (is_reset == RESET_ADAPTER) {
5046 if (qla4xxx_is_session_exists(ha, fw_ddb_entry) ==
5047 QLA_SUCCESS)
5048 goto continue_next_nt;
13483730 5049 }
4a4bc2e9 5050
1dc8ed5d 5051 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, is_reset, idx);
4a4bc2e9
LC		 5052 if (ret == QLA_ERROR)
5053 goto exit_nt_list;
5054
13483730
MC		 5055continue_next_nt:
5056 if (next_idx == 0)
5057 break;
5058 }
4a4bc2e9
LC		 5059
5060exit_nt_list:
13483730
MC		 5061 if (fw_ddb_entry)
5062 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
4a4bc2e9
LC		 5063}
5064
5065/**
5066 * qla4xxx_build_ddb_list - Build ddb list and setup sessions
5067 * @ha: pointer to adapter structure
5068 * @is_reset: Is this init path or reset path
5069 *
5070 * Create a list of sendtargets (st) from firmware DDBs, issue send targets
5071 * using connection open, then create the list of normal targets (nt)
5072 * from firmware DDBs. Based on the list of nt setup session and connection
5073 * objects.
5074 **/
5075void qla4xxx_build_ddb_list(struct scsi_qla_host *ha, int is_reset)
5076{
5077 uint16_t tmo = 0;
5078 struct list_head list_st, list_nt;
5079 struct qla_ddb_index *st_ddb_idx, *st_ddb_idx_tmp;
5080 unsigned long wtime;
5081
5082 if (!test_bit(AF_LINK_UP, &ha->flags)) {
5083 set_bit(AF_BUILD_DDB_LIST, &ha->flags);
5084 ha->is_reset = is_reset;
5085 return;
5086 }
5087
5088 INIT_LIST_HEAD(&list_st);
5089 INIT_LIST_HEAD(&list_nt);
5090
5091 qla4xxx_build_st_list(ha, &list_st);
5092
5093 /* Before issuing conn open mbox, ensure all IPs states are configured
5094 * Note, conn open fails if IPs are not configured
5095 */
5096 qla4xxx_wait_for_ip_configuration(ha);
5097
5098 /* Go thru the STs and fire the sendtargets by issuing conn open mbx */
5099 list_for_each_entry_safe(st_ddb_idx, st_ddb_idx_tmp, &list_st, list) {
5100 qla4xxx_conn_open(ha, st_ddb_idx->fw_ddb_idx);
5101 }
5102
5103 /* Wait to ensure all sendtargets are done for min 12 sec wait */
c28eaaca
NJ		 5104 tmo = ((ha->def_timeout > LOGIN_TOV) &&
5105 (ha->def_timeout < LOGIN_TOV * 10) ?
5106 ha->def_timeout : LOGIN_TOV);
5107
4a4bc2e9
LC		 5108 DEBUG2(ql4_printk(KERN_INFO, ha,
5109 "Default time to wait for build ddb %d\n", tmo));
5110
5111 wtime = jiffies + (HZ * tmo);
5112 do {
f1f2e60e
NJ		 5113 if (list_empty(&list_st))
5114 break;
5115
4a4bc2e9
LC		 5116 qla4xxx_remove_failed_ddb(ha, &list_st);
5117 schedule_timeout_uninterruptible(HZ / 10);
5118 } while (time_after(wtime, jiffies));
5119
5120 /* Free up the sendtargets list */
5121 qla4xxx_free_ddb_list(&list_st);
5122
5123 qla4xxx_build_nt_list(ha, &list_nt, is_reset);
5124
5125 qla4xxx_free_ddb_list(&list_nt);
13483730
MC		 5126
5127 qla4xxx_free_ddb_index(ha);
5128}
5129
1dc8ed5d
MR		 5130/**
5131 * qla4xxx_wait_login_resp_boot_tgt - Wait for iSCSI boot target login
5132 * response.
5133 * @ha: pointer to adapter structure
5134 *
5135 * When the boot entry is normal iSCSI target then DF_BOOT_TGT flag will be
5136 * set in DDB and we will wait for login response of boot targets during
5137 * probe.
5138 **/
5139static void qla4xxx_wait_login_resp_boot_tgt(struct scsi_qla_host *ha)
5140{
5141 struct ddb_entry *ddb_entry;
5142 struct dev_db_entry *fw_ddb_entry = NULL;
5143 dma_addr_t fw_ddb_entry_dma;
5144 unsigned long wtime;
5145 uint32_t ddb_state;
5146 int max_ddbs, idx, ret;
5147
5148 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
5149 MAX_DEV_DB_ENTRIES;
5150
5151 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
5152 &fw_ddb_entry_dma, GFP_KERNEL);
5153 if (!fw_ddb_entry) {
5154 ql4_printk(KERN_ERR, ha,
5155 "%s: Unable to allocate dma buffer\n", __func__);
5156 goto exit_login_resp;
5157 }
5158
5159 wtime = jiffies + (HZ * BOOT_LOGIN_RESP_TOV);
5160
5161 for (idx = 0; idx < max_ddbs; idx++) {
5162 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
5163 if (ddb_entry == NULL)
5164 continue;
5165
5166 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) {
5167 DEBUG2(ql4_printk(KERN_INFO, ha,
5168 "%s: DDB index [%d]\n", __func__,
5169 ddb_entry->fw_ddb_index));
5170 do {
5171 ret = qla4xxx_get_fwddb_entry(ha,
5172 ddb_entry->fw_ddb_index,
5173 fw_ddb_entry, fw_ddb_entry_dma,
5174 NULL, NULL, &ddb_state, NULL,
5175 NULL, NULL);
5176 if (ret == QLA_ERROR)
5177 goto exit_login_resp;
5178
5179 if ((ddb_state == DDB_DS_SESSION_ACTIVE) ||
5180 (ddb_state == DDB_DS_SESSION_FAILED))
5181 break;
5182
5183 schedule_timeout_uninterruptible(HZ);
5184
5185 } while ((time_after(wtime, jiffies)));
5186
5187 if (!time_after(wtime, jiffies)) {
5188 DEBUG2(ql4_printk(KERN_INFO, ha,
5189 "%s: Login response wait timer expired\n",
5190 __func__));
5191 goto exit_login_resp;
5192 }
5193 }
5194 }
5195
5196exit_login_resp:
5197 if (fw_ddb_entry)
5198 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
5199 fw_ddb_entry, fw_ddb_entry_dma);
5200}
5201
afaf5a2d
DS		 5202/**
5203 * qla4xxx_probe_adapter - callback function to probe HBA
5204 * @pdev: pointer to pci_dev structure
5205 * @pci_device_id: pointer to pci_device entry
5206 *
5207 * This routine will probe for Qlogic 4xxx iSCSI host adapters.
5208 * It returns zero if successful. It also initializes all data necessary for
5209 * the driver.
5210 **/
6f039790
GKH		 5211static int qla4xxx_probe_adapter(struct pci_dev *pdev,
5212 const struct pci_device_id *ent)
afaf5a2d
DS		 5213{
5214 int ret = -ENODEV, status;
5215 struct Scsi_Host *host;
5216 struct scsi_qla_host *ha;
afaf5a2d
DS		 5217 uint8_t init_retry_count = 0;
5218 char buf[34];
f4f5df23 5219 struct qla4_8xxx_legacy_intr_set *nx_legacy_intr;
f9880e76 5220 uint32_t dev_state;
afaf5a2d
DS		 5221
5222 if (pci_enable_device(pdev))
5223 return -1;
5224
b3a271a9 5225 host = iscsi_host_alloc(&qla4xxx_driver_template, sizeof(*ha), 0);
afaf5a2d
DS		 5226 if (host == NULL) {
5227 printk(KERN_WARNING
5228 "qla4xxx: Couldn't allocate host from scsi layer!\n");
5229 goto probe_disable_device;
5230 }
5231
5232 /* Clear our data area */
b3a271a9 5233 ha = to_qla_host(host);
afaf5a2d
DS		 5234 memset(ha, 0, sizeof(*ha));
5235
5236 /* Save the information from PCI BIOS. */
5237 ha->pdev = pdev;
5238 ha->host = host;
5239 ha->host_no = host->host_no;
6e7b4292 5240 ha->func_num = PCI_FUNC(ha->pdev->devfn);
afaf5a2d 5241
2232be0d
LC		 5242 pci_enable_pcie_error_reporting(pdev);
5243
f4f5df23
VC		 5244 /* Setup Runtime configurable options */
5245 if (is_qla8022(ha)) {
7664a1fd 5246 ha->isp_ops = &qla4_82xx_isp_ops;
33693c7a 5247 ha->reg_tbl = (uint32_t *) qla4_82xx_reg_tbl;
f4f5df23
VC		 5248 ha->qdr_sn_window = -1;
5249 ha->ddr_mn_window = -1;
5250 ha->curr_window = 255;
f4f5df23
VC		 5251 nx_legacy_intr = &legacy_intr[ha->func_num];
5252 ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit;
5253 ha->nx_legacy_intr.tgt_status_reg =
5254 nx_legacy_intr->tgt_status_reg;
5255 ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg;
5256 ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg;
6e7b4292
VC		 5257 } else if (is_qla8032(ha)) {
5258 ha->isp_ops = &qla4_83xx_isp_ops;
5259 ha->reg_tbl = (uint32_t *)qla4_83xx_reg_tbl;
f4f5df23
VC		 5260 } else {
5261 ha->isp_ops = &qla4xxx_isp_ops;
5262 }
5263
6e7b4292
VC		 5264 if (is_qla80XX(ha)) {
5265 rwlock_init(&ha->hw_lock);
5266 ha->pf_bit = ha->func_num << 16;
5267 /* Set EEH reset type to fundamental if required by hba */
2232be0d 5268 pdev->needs_freset = 1;
6e7b4292 5269 }
2232be0d 5270
afaf5a2d 5271 /* Configure PCI I/O space. */
f4f5df23 5272 ret = ha->isp_ops->iospace_config(ha);
afaf5a2d 5273 if (ret)
f4f5df23 5274 goto probe_failed_ioconfig;
afaf5a2d 5275
c2660df3 5276 ql4_printk(KERN_INFO, ha, "Found an ISP%04x, irq %d, iobase 0x%p\n",
afaf5a2d
DS		 5277 pdev->device, pdev->irq, ha->reg);
5278
5279 qla4xxx_config_dma_addressing(ha);
5280
5281 /* Initialize lists and spinlocks. */
afaf5a2d
DS		 5282 INIT_LIST_HEAD(&ha->free_srb_q);
5283
5284 mutex_init(&ha->mbox_sem);
4549415a 5285 mutex_init(&ha->chap_sem);
f4f5df23 5286 init_completion(&ha->mbx_intr_comp);
95d31262 5287 init_completion(&ha->disable_acb_comp);
afaf5a2d
DS		 5288
5289 spin_lock_init(&ha->hardware_lock);
8e9157c8 5290 spin_lock_init(&ha->work_lock);
afaf5a2d 5291
ff884430
VC		 5292 /* Initialize work list */
5293 INIT_LIST_HEAD(&ha->work_list);
5294
afaf5a2d
DS		 5295 /* Allocate dma buffers */
5296 if (qla4xxx_mem_alloc(ha)) {
c2660df3
VC		 5297 ql4_printk(KERN_WARNING, ha,
5298 "[ERROR] Failed to allocate memory for adapter\n");
afaf5a2d
DS		 5299
5300 ret = -ENOMEM;
5301 goto probe_failed;
5302 }
5303
b3a271a9
MR		 5304 host->cmd_per_lun = 3;
5305 host->max_channel = 0;
5306 host->max_lun = MAX_LUNS - 1;
5307 host->max_id = MAX_TARGETS;
5308 host->max_cmd_len = IOCB_MAX_CDB_LEN;
5309 host->can_queue = MAX_SRBS ;
5310 host->transportt = qla4xxx_scsi_transport;
5311
5312 ret = scsi_init_shared_tag_map(host, MAX_SRBS);
5313 if (ret) {
5314 ql4_printk(KERN_WARNING, ha,
5315 "%s: scsi_init_shared_tag_map failed\n", __func__);
5316 goto probe_failed;
5317 }
5318
5319 pci_set_drvdata(pdev, ha);
5320
5321 ret = scsi_add_host(host, &pdev->dev);
5322 if (ret)
5323 goto probe_failed;
5324
6e7b4292
VC		 5325 if (is_qla80XX(ha))
5326 qla4_8xxx_get_flash_info(ha);
5327
5328 if (is_qla8032(ha)) {
5329 qla4_83xx_read_reset_template(ha);
5330 /*
5331 * NOTE: If ql4dontresethba==1, set IDC_CTRL DONTRESET_BIT0.
5332 * If DONRESET_BIT0 is set, drivers should not set dev_state
5333 * to NEED_RESET. But if NEED_RESET is set, drivers should
5334 * should honor the reset.
5335 */
5336 if (ql4xdontresethba == 1)
5337 qla4_83xx_set_idc_dontreset(ha);
5338 }
f4f5df23 5339
afaf5a2d
DS		 5340 /*
5341 * Initialize the Host adapter request/response queues and
5342 * firmware
5343 * NOTE: interrupts enabled upon successful completion
5344 */
13483730 5345 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER);
7977f825
PV		 5346
5347 /* Dont retry adapter initialization if IRQ allocation failed */
17801c96
NJ		 5348 if (is_qla80XX(ha) && !test_bit(AF_IRQ_ATTACHED, &ha->flags)) {
5349 ql4_printk(KERN_WARNING, ha, "%s: Skipping retry of adapter initialization\n",
5350 __func__);
7977f825 5351 goto skip_retry_init;
17801c96 5352 }
7977f825 5353
f4f5df23
VC		 5354 while ((!test_bit(AF_ONLINE, &ha->flags)) &&
5355 init_retry_count++ < MAX_INIT_RETRIES) {
f9880e76 5356
6e7b4292 5357 if (is_qla80XX(ha)) {
33693c7a
VC		 5358 ha->isp_ops->idc_lock(ha);
5359 dev_state = qla4_8xxx_rd_direct(ha,
e951aca1 5360 QLA8XXX_CRB_DEV_STATE);
33693c7a 5361 ha->isp_ops->idc_unlock(ha);
de8c72da 5362 if (dev_state == QLA8XXX_DEV_FAILED) {
f9880e76
PM		 5363 ql4_printk(KERN_WARNING, ha, "%s: don't retry "
5364 "initialize adapter. H/W is in failed state\n",
5365 __func__);
5366 break;
5367 }
5368 }
afaf5a2d
DS		 5369 DEBUG2(printk("scsi: %s: retrying adapter initialization "
5370 "(%d)\n", __func__, init_retry_count));
f4f5df23
VC		 5371
5372 if (ha->isp_ops->reset_chip(ha) == QLA_ERROR)
5373 continue;
5374
13483730 5375 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER);
afaf5a2d 5376 }
f4f5df23 5377
7977f825 5378skip_retry_init:
f4f5df23 5379 if (!test_bit(AF_ONLINE, &ha->flags)) {
c2660df3 5380 ql4_printk(KERN_WARNING, ha, "Failed to initialize adapter\n");
afaf5a2d 5381
6e7b4292
VC		 5382 if ((is_qla8022(ha) && ql4xdontresethba) ||
5383 (is_qla8032(ha) && qla4_83xx_idc_dontreset(ha))) {
fe998527
LC		 5384 /* Put the device in failed state. */
5385 DEBUG2(printk(KERN_ERR "HW STATE: FAILED\n"));
33693c7a
VC		 5386 ha->isp_ops->idc_lock(ha);
5387 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
5388 QLA8XXX_DEV_FAILED);
5389 ha->isp_ops->idc_unlock(ha);
fe998527 5390 }
afaf5a2d 5391 ret = -ENODEV;
b3a271a9 5392 goto remove_host;
afaf5a2d
DS		 5393 }
5394
afaf5a2d
DS		 5395 /* Startup the kernel thread for this host adapter. */
5396 DEBUG2(printk("scsi: %s: Starting kernel thread for "
5397 "qla4xxx_dpc\n", __func__));
5398 sprintf(buf, "qla4xxx_%lu_dpc", ha->host_no);
5399 ha->dpc_thread = create_singlethread_workqueue(buf);
5400 if (!ha->dpc_thread) {
c2660df3 5401 ql4_printk(KERN_WARNING, ha, "Unable to start DPC thread!\n");
afaf5a2d 5402 ret = -ENODEV;
b3a271a9 5403 goto remove_host;
afaf5a2d 5404 }
c4028958 5405 INIT_WORK(&ha->dpc_work, qla4xxx_do_dpc);
afaf5a2d 5406
b3a271a9
MR		 5407 sprintf(buf, "qla4xxx_%lu_task", ha->host_no);
5408 ha->task_wq = alloc_workqueue(buf, WQ_MEM_RECLAIM, 1);
5409 if (!ha->task_wq) {
5410 ql4_printk(KERN_WARNING, ha, "Unable to start task thread!\n");
5411 ret = -ENODEV;
5412 goto remove_host;
5413 }
5414
6e7b4292
VC		 5415 /*
5416 * For ISP-8XXX, request_irqs is called in qla4_8xxx_load_risc
f4f5df23
VC		 5417 * (which is called indirectly by qla4xxx_initialize_adapter),
5418 * so that irqs will be registered after crbinit but before
5419 * mbx_intr_enable.
5420 */
ee996a69 5421 if (is_qla40XX(ha)) {
f4f5df23
VC		 5422 ret = qla4xxx_request_irqs(ha);
5423 if (ret) {
5424 ql4_printk(KERN_WARNING, ha, "Failed to reserve "
5425 "interrupt %d already in use.\n", pdev->irq);
b3a271a9 5426 goto remove_host;
f4f5df23 5427 }
afaf5a2d 5428 }
afaf5a2d 5429
2232be0d 5430 pci_save_state(ha->pdev);
f4f5df23 5431 ha->isp_ops->enable_intrs(ha);
afaf5a2d
DS		 5432
5433 /* Start timer thread. */
5434 qla4xxx_start_timer(ha, qla4xxx_timer, 1);
5435
5436 set_bit(AF_INIT_DONE, &ha->flags);
5437
068237c8
TP		 5438 qla4_8xxx_alloc_sysfs_attr(ha);
5439
afaf5a2d
DS		 5440 printk(KERN_INFO
5441 " QLogic iSCSI HBA Driver version: %s\n"
5442 " QLogic ISP%04x @ %s, host#=%ld, fw=%02d.%02d.%02d.%02d\n",
5443 qla4xxx_version_str, ha->pdev->device, pci_name(ha->pdev),
5444 ha->host_no, ha->firmware_version[0], ha->firmware_version[1],
5445 ha->patch_number, ha->build_number);
ed1086e0 5446
cfb27874
MD		 5447 /* Set the driver version */
5448 if (is_qla80XX(ha))
5449 qla4_8xxx_set_param(ha, SET_DRVR_VERSION);
5450
2a991c21 5451 if (qla4xxx_setup_boot_info(ha))
3573bfb2
VC		 5452 ql4_printk(KERN_ERR, ha,
5453 "%s: No iSCSI boot target configured\n", __func__);
2a991c21 5454
13483730
MC		 5455 /* Perform the build ddb list and login to each */
5456 qla4xxx_build_ddb_list(ha, INIT_ADAPTER);
5457 iscsi_host_for_each_session(ha->host, qla4xxx_login_flash_ddb);
1dc8ed5d 5458 qla4xxx_wait_login_resp_boot_tgt(ha);
13483730
MC		 5459
5460 qla4xxx_create_chap_list(ha);
5461
ed1086e0 5462 qla4xxx_create_ifaces(ha);
afaf5a2d
DS		 5463 return 0;
5464
b3a271a9
MR		 5465remove_host:
5466 scsi_remove_host(ha->host);
5467
afaf5a2d
DS		 5468probe_failed:
5469 qla4xxx_free_adapter(ha);
f4f5df23
VC		 5470
5471probe_failed_ioconfig:
2232be0d 5472 pci_disable_pcie_error_reporting(pdev);
afaf5a2d
DS		 5473 scsi_host_put(ha->host);
5474
5475probe_disable_device:
5476 pci_disable_device(pdev);
5477
5478 return ret;
5479}
5480
7eece5a0
KH		 5481/**
5482 * qla4xxx_prevent_other_port_reinit - prevent other port from re-initialize
5483 * @ha: pointer to adapter structure
5484 *
5485 * Mark the other ISP-4xxx port to indicate that the driver is being removed,
5486 * so that the other port will not re-initialize while in the process of
5487 * removing the ha due to driver unload or hba hotplug.
5488 **/
5489static void qla4xxx_prevent_other_port_reinit(struct scsi_qla_host *ha)
5490{
5491 struct scsi_qla_host *other_ha = NULL;
5492 struct pci_dev *other_pdev = NULL;
5493 int fn = ISP4XXX_PCI_FN_2;
5494
5495 /*iscsi function numbers for ISP4xxx is 1 and 3*/
5496 if (PCI_FUNC(ha->pdev->devfn) & BIT_1)
5497 fn = ISP4XXX_PCI_FN_1;
5498
5499 other_pdev =
5500 pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus),
5501 ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
5502 fn));
5503
5504 /* Get other_ha if other_pdev is valid and state is enable*/
5505 if (other_pdev) {
5506 if (atomic_read(&other_pdev->enable_cnt)) {
5507 other_ha = pci_get_drvdata(other_pdev);
5508 if (other_ha) {
5509 set_bit(AF_HA_REMOVAL, &other_ha->flags);
5510 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: "
5511 "Prevent %s reinit\n", __func__,
5512 dev_name(&other_ha->pdev->dev)));
5513 }
5514 }
5515 pci_dev_put(other_pdev);
5516 }
5517}
5518
13483730
MC		 5519static void qla4xxx_destroy_fw_ddb_session(struct scsi_qla_host *ha)
5520{
5521 struct ddb_entry *ddb_entry;
5522 int options;
5523 int idx;
5524
5525 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
5526
5527 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
5528 if ((ddb_entry != NULL) &&
5529 (ddb_entry->ddb_type == FLASH_DDB)) {
5530
5531 options = LOGOUT_OPTION_CLOSE_SESSION;
5532 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options)
5533 == QLA_ERROR)
5534 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n",
5535 __func__);
5536
5537 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
5538 /*
5539 * we have decremented the reference count of the driver
5540 * when we setup the session to have the driver unload
5541 * to be seamless without actually destroying the
5542 * session
5543 **/
5544 try_module_get(qla4xxx_iscsi_transport.owner);
5545 iscsi_destroy_endpoint(ddb_entry->conn->ep);
5546 qla4xxx_free_ddb(ha, ddb_entry);
5547 iscsi_session_teardown(ddb_entry->sess);
5548 }
5549 }
5550}
afaf5a2d 5551/**
59e13d48 5552 * qla4xxx_remove_adapter - callback function to remove adapter.
afaf5a2d
DS		 5553 * @pci_dev: PCI device pointer
5554 **/
6f039790 5555static void qla4xxx_remove_adapter(struct pci_dev *pdev)
afaf5a2d
DS		 5556{
5557 struct scsi_qla_host *ha;
5558
f8b0751d
VC		 5559 /*
5560 * If the PCI device is disabled then it means probe_adapter had
5561 * failed and resources already cleaned up on probe_adapter exit.
5562 */
5563 if (!pci_is_enabled(pdev))
5564 return;
5565
afaf5a2d
DS		 5566 ha = pci_get_drvdata(pdev);
5567
ee996a69 5568 if (is_qla40XX(ha))
7eece5a0 5569 qla4xxx_prevent_other_port_reinit(ha);
bee4fe8e 5570
ed1086e0
VC		 5571 /* destroy iface from sysfs */
5572 qla4xxx_destroy_ifaces(ha);
5573
13483730 5574 if ((!ql4xdisablesysfsboot) && ha->boot_kset)
2a991c21
MR		 5575 iscsi_boot_destroy_kset(ha->boot_kset);
5576
13483730 5577 qla4xxx_destroy_fw_ddb_session(ha);
068237c8 5578 qla4_8xxx_free_sysfs_attr(ha);
13483730 5579
afaf5a2d
DS		 5580 scsi_remove_host(ha->host);
5581
5582 qla4xxx_free_adapter(ha);
5583
5584 scsi_host_put(ha->host);
5585
2232be0d 5586 pci_disable_pcie_error_reporting(pdev);
f4f5df23 5587 pci_disable_device(pdev);
afaf5a2d
DS		 5588 pci_set_drvdata(pdev, NULL);
5589}
5590
5591/**
5592 * qla4xxx_config_dma_addressing() - Configure OS DMA addressing method.
5593 * @ha: HA context
5594 *
5595 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
5596 * supported addressing method.
5597 */
47975477 5598static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha)
afaf5a2d
DS		 5599{
5600 int retval;
5601
5602 /* Update our PCI device dma_mask for full 64 bit mask */
6a35528a
YH		 5603 if (pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(64)) == 0) {
5604 if (pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) {
afaf5a2d
DS		 5605 dev_dbg(&ha->pdev->dev,
5606 "Failed to set 64 bit PCI consistent mask; "
5607 "using 32 bit.\n");
5608 retval = pci_set_consistent_dma_mask(ha->pdev,
284901a9 5609 DMA_BIT_MASK(32));
afaf5a2d
DS		 5610 }
5611 } else
284901a9 5612 retval = pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(32));
afaf5a2d
DS		 5613}
5614
5615static int qla4xxx_slave_alloc(struct scsi_device *sdev)
5616{
b3a271a9
MR		 5617 struct iscsi_cls_session *cls_sess;
5618 struct iscsi_session *sess;
5619 struct ddb_entry *ddb;
8bb4033d 5620 int queue_depth = QL4_DEF_QDEPTH;
afaf5a2d 5621
b3a271a9
MR		 5622 cls_sess = starget_to_session(sdev->sdev_target);
5623 sess = cls_sess->dd_data;
5624 ddb = sess->dd_data;
5625
afaf5a2d
DS		 5626 sdev->hostdata = ddb;
5627 sdev->tagged_supported = 1;
8bb4033d
VC		 5628
5629 if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU)
5630 queue_depth = ql4xmaxqdepth;
5631
5632 scsi_activate_tcq(sdev, queue_depth);
afaf5a2d
DS		 5633 return 0;
5634}
5635
5636static int qla4xxx_slave_configure(struct scsi_device *sdev)
5637{
5638 sdev->tagged_supported = 1;
5639 return 0;
5640}
5641
5642static void qla4xxx_slave_destroy(struct scsi_device *sdev)
5643{
5644 scsi_deactivate_tcq(sdev, 1);
5645}
5646
f7b4aa63
TP		 5647static int qla4xxx_change_queue_depth(struct scsi_device *sdev, int qdepth,
5648 int reason)
5649{
5650 if (!ql4xqfulltracking)
5651 return -EOPNOTSUPP;
5652
5653 return iscsi_change_queue_depth(sdev, qdepth, reason);
5654}
5655
afaf5a2d
DS		 5656/**
5657 * qla4xxx_del_from_active_array - returns an active srb
5658 * @ha: Pointer to host adapter structure.
fd589a8f 5659 * @index: index into the active_array
afaf5a2d
DS		 5660 *
5661 * This routine removes and returns the srb at the specified index
5662 **/
f4f5df23
VC		 5663struct srb *qla4xxx_del_from_active_array(struct scsi_qla_host *ha,
5664 uint32_t index)
afaf5a2d
DS		 5665{
5666 struct srb *srb = NULL;
5369887a 5667 struct scsi_cmnd *cmd = NULL;
afaf5a2d 5668
5369887a
VC		 5669 cmd = scsi_host_find_tag(ha->host, index);
5670 if (!cmd)
afaf5a2d
DS		 5671 return srb;
5672
5369887a
VC		 5673 srb = (struct srb *)CMD_SP(cmd);
5674 if (!srb)
afaf5a2d
DS		 5675 return srb;
5676
5677 /* update counters */
5678 if (srb->flags & SRB_DMA_VALID) {
afaf5a2d
DS		 5679 ha->iocb_cnt -= srb->iocb_cnt;
5680 if (srb->cmd)
5369887a
VC		 5681 srb->cmd->host_scribble =
5682 (unsigned char *)(unsigned long) MAX_SRBS;
afaf5a2d
DS		 5683 }
5684 return srb;
5685}
5686
afaf5a2d
DS		 5687/**
5688 * qla4xxx_eh_wait_on_command - waits for command to be returned by firmware
09a0f719 5689 * @ha: Pointer to host adapter structure.
afaf5a2d
DS		 5690 * @cmd: Scsi Command to wait on.
5691 *
5692 * This routine waits for the command to be returned by the Firmware
5693 * for some max time.
5694 **/
5695static int qla4xxx_eh_wait_on_command(struct scsi_qla_host *ha,
5696 struct scsi_cmnd *cmd)
5697{
5698 int done = 0;
5699 struct srb *rp;
5700 uint32_t max_wait_time = EH_WAIT_CMD_TOV;
2232be0d
LC		 5701 int ret = SUCCESS;
5702
5703 /* Dont wait on command if PCI error is being handled
5704 * by PCI AER driver
5705 */
5706 if (unlikely(pci_channel_offline(ha->pdev)) ||
5707 (test_bit(AF_EEH_BUSY, &ha->flags))) {
5708 ql4_printk(KERN_WARNING, ha, "scsi%ld: Return from %s\n",
5709 ha->host_no, __func__);
5710 return ret;
5711 }
afaf5a2d
DS		 5712
5713 do {
5714 /* Checking to see if its returned to OS */
5369887a 5715 rp = (struct srb *) CMD_SP(cmd);
afaf5a2d
DS		 5716 if (rp == NULL) {
5717 done++;
5718 break;
5719 }
5720
5721 msleep(2000);
5722 } while (max_wait_time--);
5723
5724 return done;
5725}
5726
5727/**
5728 * qla4xxx_wait_for_hba_online - waits for HBA to come online
5729 * @ha: Pointer to host adapter structure
5730 **/
5731static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha)
5732{
5733 unsigned long wait_online;
5734
f581a3f7 5735 wait_online = jiffies + (HBA_ONLINE_TOV * HZ);
afaf5a2d
DS		 5736 while (time_before(jiffies, wait_online)) {
5737
5738 if (adapter_up(ha))
5739 return QLA_SUCCESS;
afaf5a2d
DS		 5740
5741 msleep(2000);
5742 }
5743
5744 return QLA_ERROR;
5745}
5746
5747/**
ce545039 5748 * qla4xxx_eh_wait_for_commands - wait for active cmds to finish.
fd589a8f 5749 * @ha: pointer to HBA
afaf5a2d
DS		 5750 * @t: target id
5751 * @l: lun id
5752 *
5753 * This function waits for all outstanding commands to a lun to complete. It
5754 * returns 0 if all pending commands are returned and 1 otherwise.
5755 **/
ce545039
MC		 5756static int qla4xxx_eh_wait_for_commands(struct scsi_qla_host *ha,
5757 struct scsi_target *stgt,
5758 struct scsi_device *sdev)
afaf5a2d
DS		 5759{
5760 int cnt;
5761 int status = 0;
5762 struct scsi_cmnd *cmd;
5763
5764 /*
ce545039
MC		 5765 * Waiting for all commands for the designated target or dev
5766 * in the active array
afaf5a2d
DS		 5767 */
5768 for (cnt = 0; cnt < ha->host->can_queue; cnt++) {
5769 cmd = scsi_host_find_tag(ha->host, cnt);
ce545039
MC		 5770 if (cmd && stgt == scsi_target(cmd->device) &&
5771 (!sdev || sdev == cmd->device)) {
afaf5a2d
DS		 5772 if (!qla4xxx_eh_wait_on_command(ha, cmd)) {
5773 status++;
5774 break;
5775 }
5776 }
5777 }
5778 return status;
5779}
5780
09a0f719
VC		 5781/**
5782 * qla4xxx_eh_abort - callback for abort task.
5783 * @cmd: Pointer to Linux's SCSI command structure
5784 *
5785 * This routine is called by the Linux OS to abort the specified
5786 * command.
5787 **/
5788static int qla4xxx_eh_abort(struct scsi_cmnd *cmd)
5789{
5790 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
5791 unsigned int id = cmd->device->id;
5792 unsigned int lun = cmd->device->lun;
92b3e5bb 5793 unsigned long flags;
09a0f719
VC		 5794 struct srb *srb = NULL;
5795 int ret = SUCCESS;
5796 int wait = 0;
5797
c2660df3 5798 ql4_printk(KERN_INFO, ha,
5cd049a5
CH		 5799 "scsi%ld:%d:%d: Abort command issued cmd=%p\n",
5800 ha->host_no, id, lun, cmd);
09a0f719 5801
92b3e5bb 5802 spin_lock_irqsave(&ha->hardware_lock, flags);
09a0f719 5803 srb = (struct srb *) CMD_SP(cmd);
92b3e5bb
MC		 5804 if (!srb) {
5805 spin_unlock_irqrestore(&ha->hardware_lock, flags);
09a0f719 5806 return SUCCESS;
92b3e5bb 5807 }
09a0f719 5808 kref_get(&srb->srb_ref);
92b3e5bb 5809 spin_unlock_irqrestore(&ha->hardware_lock, flags);
09a0f719
VC		 5810
5811 if (qla4xxx_abort_task(ha, srb) != QLA_SUCCESS) {
5812 DEBUG3(printk("scsi%ld:%d:%d: Abort_task mbx failed.\n",
5813 ha->host_no, id, lun));
5814 ret = FAILED;
5815 } else {
5816 DEBUG3(printk("scsi%ld:%d:%d: Abort_task mbx success.\n",
5817 ha->host_no, id, lun));
5818 wait = 1;
5819 }
5820
5821 kref_put(&srb->srb_ref, qla4xxx_srb_compl);
5822
5823 /* Wait for command to complete */
5824 if (wait) {
5825 if (!qla4xxx_eh_wait_on_command(ha, cmd)) {
5826 DEBUG2(printk("scsi%ld:%d:%d: Abort handler timed out\n",
5827 ha->host_no, id, lun));
5828 ret = FAILED;
5829 }
5830 }
5831
c2660df3 5832 ql4_printk(KERN_INFO, ha,
09a0f719 5833 "scsi%ld:%d:%d: Abort command - %s\n",
25985edc 5834 ha->host_no, id, lun, (ret == SUCCESS) ? "succeeded" : "failed");
09a0f719
VC		 5835
5836 return ret;
5837}
5838
afaf5a2d
DS		 5839/**
5840 * qla4xxx_eh_device_reset - callback for target reset.
5841 * @cmd: Pointer to Linux's SCSI command structure
5842 *
5843 * This routine is called by the Linux OS to reset all luns on the
5844 * specified target.
5845 **/
5846static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd)
5847{
5848 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
5849 struct ddb_entry *ddb_entry = cmd->device->hostdata;
afaf5a2d
DS		 5850 int ret = FAILED, stat;
5851
612f7348 5852 if (!ddb_entry)
afaf5a2d
DS		 5853 return ret;
5854
c01be6dc
MC		 5855 ret = iscsi_block_scsi_eh(cmd);
5856 if (ret)
5857 return ret;
5858 ret = FAILED;
5859
c2660df3 5860 ql4_printk(KERN_INFO, ha,
afaf5a2d
DS		 5861 "scsi%ld:%d:%d:%d: DEVICE RESET ISSUED.\n", ha->host_no,
5862 cmd->device->channel, cmd->device->id, cmd->device->lun);
5863
5864 DEBUG2(printk(KERN_INFO
5865 "scsi%ld: DEVICE_RESET cmd=%p jiffies = 0x%lx, to=%x,"
5866 "dpc_flags=%lx, status=%x allowed=%d\n", ha->host_no,
242f9dcb 5867 cmd, jiffies, cmd->request->timeout / HZ,
afaf5a2d
DS		 5868 ha->dpc_flags, cmd->result, cmd->allowed));
5869
5870 /* FIXME: wait for hba to go online */
5871 stat = qla4xxx_reset_lun(ha, ddb_entry, cmd->device->lun);
5872 if (stat != QLA_SUCCESS) {
c2660df3 5873 ql4_printk(KERN_INFO, ha, "DEVICE RESET FAILED. %d\n", stat);
afaf5a2d
DS		 5874 goto eh_dev_reset_done;
5875 }
5876
ce545039
MC		 5877 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device),
5878 cmd->device)) {
c2660df3 5879 ql4_printk(KERN_INFO, ha,
ce545039
MC		 5880 "DEVICE RESET FAILED - waiting for "
5881 "commands.\n");
5882 goto eh_dev_reset_done;
afaf5a2d
DS		 5883 }
5884
9d562913
DS		 5885 /* Send marker. */
5886 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun,
5887 MM_LUN_RESET) != QLA_SUCCESS)
5888 goto eh_dev_reset_done;
5889
c2660df3 5890 ql4_printk(KERN_INFO, ha,
afaf5a2d
DS		 5891 "scsi(%ld:%d:%d:%d): DEVICE RESET SUCCEEDED.\n",
5892 ha->host_no, cmd->device->channel, cmd->device->id,
5893 cmd->device->lun);
5894
5895 ret = SUCCESS;
5896
5897eh_dev_reset_done:
5898
5899 return ret;
5900}
5901
ce545039
MC		 5902/**
5903 * qla4xxx_eh_target_reset - callback for target reset.
5904 * @cmd: Pointer to Linux's SCSI command structure
5905 *
5906 * This routine is called by the Linux OS to reset the target.
5907 **/
5908static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd)
5909{
5910 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
5911 struct ddb_entry *ddb_entry = cmd->device->hostdata;
c01be6dc 5912 int stat, ret;
ce545039
MC		 5913
5914 if (!ddb_entry)
5915 return FAILED;
5916
c01be6dc
MC		 5917 ret = iscsi_block_scsi_eh(cmd);
5918 if (ret)
5919 return ret;
5920
ce545039
MC		 5921 starget_printk(KERN_INFO, scsi_target(cmd->device),
5922 "WARM TARGET RESET ISSUED.\n");
5923
5924 DEBUG2(printk(KERN_INFO
5925 "scsi%ld: TARGET_DEVICE_RESET cmd=%p jiffies = 0x%lx, "
5926 "to=%x,dpc_flags=%lx, status=%x allowed=%d\n",
242f9dcb 5927 ha->host_no, cmd, jiffies, cmd->request->timeout / HZ,
ce545039
MC		 5928 ha->dpc_flags, cmd->result, cmd->allowed));
5929
5930 stat = qla4xxx_reset_target(ha, ddb_entry);
5931 if (stat != QLA_SUCCESS) {
5932 starget_printk(KERN_INFO, scsi_target(cmd->device),
5933 "WARM TARGET RESET FAILED.\n");
5934 return FAILED;
5935 }
5936
ce545039
MC		 5937 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device),
5938 NULL)) {
5939 starget_printk(KERN_INFO, scsi_target(cmd->device),
5940 "WARM TARGET DEVICE RESET FAILED - "
5941 "waiting for commands.\n");
5942 return FAILED;
5943 }
5944
9d562913
DS		 5945 /* Send marker. */
5946 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun,
5947 MM_TGT_WARM_RESET) != QLA_SUCCESS) {
5948 starget_printk(KERN_INFO, scsi_target(cmd->device),
5949 "WARM TARGET DEVICE RESET FAILED - "
5950 "marker iocb failed.\n");
5951 return FAILED;
5952 }
5953
ce545039
MC		 5954 starget_printk(KERN_INFO, scsi_target(cmd->device),
5955 "WARM TARGET RESET SUCCEEDED.\n");
5956 return SUCCESS;
5957}
5958
8a288960
SR		 5959/**
5960 * qla4xxx_is_eh_active - check if error handler is running
5961 * @shost: Pointer to SCSI Host struct
5962 *
5963 * This routine finds that if reset host is called in EH
5964 * scenario or from some application like sg_reset
5965 **/
5966static int qla4xxx_is_eh_active(struct Scsi_Host *shost)
5967{
5968 if (shost->shost_state == SHOST_RECOVERY)
5969 return 1;
5970 return 0;
5971}
5972
afaf5a2d
DS		 5973/**
5974 * qla4xxx_eh_host_reset - kernel callback
5975 * @cmd: Pointer to Linux's SCSI command structure
5976 *
5977 * This routine is invoked by the Linux kernel to perform fatal error
5978 * recovery on the specified adapter.
5979 **/
5980static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd)
5981{
5982 int return_status = FAILED;
5983 struct scsi_qla_host *ha;
5984
b3a271a9 5985 ha = to_qla_host(cmd->device->host);
afaf5a2d 5986
6e7b4292
VC		 5987 if (is_qla8032(ha) && ql4xdontresethba)
5988 qla4_83xx_set_idc_dontreset(ha);
5989
5990 /*
5991 * For ISP8324, if IDC_CTRL DONTRESET_BIT0 is set by other
5992 * protocol drivers, we should not set device_state to
5993 * NEED_RESET
5994 */
5995 if (ql4xdontresethba ||
5996 (is_qla8032(ha) && qla4_83xx_idc_dontreset(ha))) {
f4f5df23
VC		 5997 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n",
5998 ha->host_no, __func__));
8a288960
SR		 5999
6000 /* Clear outstanding srb in queues */
6001 if (qla4xxx_is_eh_active(cmd->device->host))
6002 qla4xxx_abort_active_cmds(ha, DID_ABORT << 16);
6003
f4f5df23
VC		 6004 return FAILED;
6005 }
6006
c2660df3 6007 ql4_printk(KERN_INFO, ha,
dca05c4c 6008 "scsi(%ld:%d:%d:%d): HOST RESET ISSUED.\n", ha->host_no,
afaf5a2d
DS		 6009 cmd->device->channel, cmd->device->id, cmd->device->lun);
6010
6011 if (qla4xxx_wait_for_hba_online(ha) != QLA_SUCCESS) {
6012 DEBUG2(printk("scsi%ld:%d: %s: Unable to reset host. Adapter "
6013 "DEAD.\n", ha->host_no, cmd->device->channel,
6014 __func__));
6015
6016 return FAILED;
6017 }
6018
f4f5df23 6019 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
6e7b4292 6020 if (is_qla80XX(ha))
f4f5df23
VC		 6021 set_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
6022 else
6023 set_bit(DPC_RESET_HA, &ha->dpc_flags);
6024 }
50a29aec 6025
f4f5df23 6026 if (qla4xxx_recover_adapter(ha) == QLA_SUCCESS)
afaf5a2d 6027 return_status = SUCCESS;
afaf5a2d 6028
c2660df3 6029 ql4_printk(KERN_INFO, ha, "HOST RESET %s.\n",
25985edc 6030 return_status == FAILED ? "FAILED" : "SUCCEEDED");
afaf5a2d
DS		 6031
6032 return return_status;
6033}
6034
95d31262
VC		 6035static int qla4xxx_context_reset(struct scsi_qla_host *ha)
6036{
6037 uint32_t mbox_cmd[MBOX_REG_COUNT];
6038 uint32_t mbox_sts[MBOX_REG_COUNT];
6039 struct addr_ctrl_blk_def *acb = NULL;
6040 uint32_t acb_len = sizeof(struct addr_ctrl_blk_def);
6041 int rval = QLA_SUCCESS;
6042 dma_addr_t acb_dma;
6043
6044 acb = dma_alloc_coherent(&ha->pdev->dev,
6045 sizeof(struct addr_ctrl_blk_def),
6046 &acb_dma, GFP_KERNEL);
6047 if (!acb) {
6048 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc acb\n",
6049 __func__);
6050 rval = -ENOMEM;
6051 goto exit_port_reset;
6052 }
6053
6054 memset(acb, 0, acb_len);
6055
6056 rval = qla4xxx_get_acb(ha, acb_dma, PRIMARI_ACB, acb_len);
6057 if (rval != QLA_SUCCESS) {
6058 rval = -EIO;
6059 goto exit_free_acb;
6060 }
6061
6062 rval = qla4xxx_disable_acb(ha);
6063 if (rval != QLA_SUCCESS) {
6064 rval = -EIO;
6065 goto exit_free_acb;
6066 }
6067
6068 wait_for_completion_timeout(&ha->disable_acb_comp,
6069 DISABLE_ACB_TOV * HZ);
6070
6071 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], acb_dma);
6072 if (rval != QLA_SUCCESS) {
6073 rval = -EIO;
6074 goto exit_free_acb;
6075 }
6076
6077exit_free_acb:
6078 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk_def),
6079 acb, acb_dma);
6080exit_port_reset:
6081 DEBUG2(ql4_printk(KERN_INFO, ha, "%s %s\n", __func__,
6082 rval == QLA_SUCCESS ? "SUCCEEDED" : "FAILED"));
6083 return rval;
6084}
6085
6086static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type)
6087{
6088 struct scsi_qla_host *ha = to_qla_host(shost);
6089 int rval = QLA_SUCCESS;
ebd777de 6090 uint32_t idc_ctrl;
95d31262
VC		 6091
6092 if (ql4xdontresethba) {
6093 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Don't Reset HBA\n",
6094 __func__));
6095 rval = -EPERM;
6096 goto exit_host_reset;
6097 }
6098
95d31262
VC		 6099 if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
6100 goto recover_adapter;
6101
6102 switch (reset_type) {
6103 case SCSI_ADAPTER_RESET:
6104 set_bit(DPC_RESET_HA, &ha->dpc_flags);
6105 break;
6106 case SCSI_FIRMWARE_RESET:
6107 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
6e7b4292 6108 if (is_qla80XX(ha))
95d31262
VC		 6109 /* set firmware context reset */
6110 set_bit(DPC_RESET_HA_FW_CONTEXT,
6111 &ha->dpc_flags);
6112 else {
6113 rval = qla4xxx_context_reset(ha);
6114 goto exit_host_reset;
6115 }
6116 }
6117 break;
6118 }
6119
6120recover_adapter:
ebd777de
VC		 6121 /* For ISP83XX set graceful reset bit in IDC_DRV_CTRL if
6122 * reset is issued by application */
6123 if (is_qla8032(ha) && test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
6124 idc_ctrl = qla4_83xx_rd_reg(ha, QLA83XX_IDC_DRV_CTRL);
6125 qla4_83xx_wr_reg(ha, QLA83XX_IDC_DRV_CTRL,
6126 (idc_ctrl | GRACEFUL_RESET_BIT1));
6127 }
6128
95d31262
VC		 6129 rval = qla4xxx_recover_adapter(ha);
6130 if (rval != QLA_SUCCESS) {
6131 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: recover adapter fail\n",
6132 __func__));
6133 rval = -EIO;
6134 }
6135
6136exit_host_reset:
6137 return rval;
6138}
6139
2232be0d
LC		 6140/* PCI AER driver recovers from all correctable errors w/o
6141 * driver intervention. For uncorrectable errors PCI AER
6142 * driver calls the following device driver's callbacks
6143 *
6144 * - Fatal Errors - link_reset
6145 * - Non-Fatal Errors - driver's pci_error_detected() which
6146 * returns CAN_RECOVER, NEED_RESET or DISCONNECT.
6147 *
6148 * PCI AER driver calls
6149 * CAN_RECOVER - driver's pci_mmio_enabled(), mmio_enabled
6150 * returns RECOVERED or NEED_RESET if fw_hung
6151 * NEED_RESET - driver's slot_reset()
6152 * DISCONNECT - device is dead & cannot recover
6153 * RECOVERED - driver's pci_resume()
6154 */
6155static pci_ers_result_t
6156qla4xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
6157{
6158 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
6159
6160 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: error detected:state %x\n",
6161 ha->host_no, __func__, state);
6162
6163 if (!is_aer_supported(ha))
6164 return PCI_ERS_RESULT_NONE;
6165
6166 switch (state) {
6167 case pci_channel_io_normal:
6168 clear_bit(AF_EEH_BUSY, &ha->flags);
6169 return PCI_ERS_RESULT_CAN_RECOVER;
6170 case pci_channel_io_frozen:
6171 set_bit(AF_EEH_BUSY, &ha->flags);
6172 qla4xxx_mailbox_premature_completion(ha);
6173 qla4xxx_free_irqs(ha);
6174 pci_disable_device(pdev);
7b3595df
VC		 6175 /* Return back all IOs */
6176 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
2232be0d
LC		 6177 return PCI_ERS_RESULT_NEED_RESET;
6178 case pci_channel_io_perm_failure:
6179 set_bit(AF_EEH_BUSY, &ha->flags);
6180 set_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags);
6181 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
6182 return PCI_ERS_RESULT_DISCONNECT;
6183 }
6184 return PCI_ERS_RESULT_NEED_RESET;
6185}
6186
6187/**
6188 * qla4xxx_pci_mmio_enabled() gets called if
6189 * qla4xxx_pci_error_detected() returns PCI_ERS_RESULT_CAN_RECOVER
6190 * and read/write to the device still works.
6191 **/
6192static pci_ers_result_t
6193qla4xxx_pci_mmio_enabled(struct pci_dev *pdev)
6194{
6195 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
6196
6197 if (!is_aer_supported(ha))
6198 return PCI_ERS_RESULT_NONE;
6199
7b3595df 6200 return PCI_ERS_RESULT_RECOVERED;
2232be0d
LC		 6201}
6202
7b3595df 6203static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha)
2232be0d
LC		 6204{
6205 uint32_t rval = QLA_ERROR;
6206 int fn;
6207 struct pci_dev *other_pdev = NULL;
6208
6209 ql4_printk(KERN_WARNING, ha, "scsi%ld: In %s\n", ha->host_no, __func__);
6210
6211 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
6212
6213 if (test_bit(AF_ONLINE, &ha->flags)) {
6214 clear_bit(AF_ONLINE, &ha->flags);
b3a271a9
MR		 6215 clear_bit(AF_LINK_UP, &ha->flags);
6216 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session);
2232be0d 6217 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
2232be0d
LC		 6218 }
6219
6220 fn = PCI_FUNC(ha->pdev->devfn);
6221 while (fn > 0) {
6222 fn--;
6223 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Finding PCI device at "
6224 "func %x\n", ha->host_no, __func__, fn);
6225 /* Get the pci device given the domain, bus,
6226 * slot/function number */
6227 other_pdev =
6228 pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus),
6229 ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
6230 fn));
6231
6232 if (!other_pdev)
6233 continue;
6234
6235 if (atomic_read(&other_pdev->enable_cnt)) {
6236 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Found PCI "
6237 "func in enabled state%x\n", ha->host_no,
6238 __func__, fn);
6239 pci_dev_put(other_pdev);
6240 break;
6241 }
6242 pci_dev_put(other_pdev);
6243 }
6244
6245 /* The first function on the card, the reset owner will
6246 * start & initialize the firmware. The other functions
6247 * on the card will reset the firmware context
6248 */
6249 if (!fn) {
6250 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn being reset "
6251 "0x%x is the owner\n", ha->host_no, __func__,
6252 ha->pdev->devfn);
6253
33693c7a
VC		 6254 ha->isp_ops->idc_lock(ha);
6255 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
6256 QLA8XXX_DEV_COLD);
33693c7a 6257 ha->isp_ops->idc_unlock(ha);
39c95826
VC		 6258
6259 rval = qla4_8xxx_update_idc_reg(ha);
6260 if (rval == QLA_ERROR) {
6261 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: FAILED\n",
6262 ha->host_no, __func__);
6263 ha->isp_ops->idc_lock(ha);
6264 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
6265 QLA8XXX_DEV_FAILED);
6266 ha->isp_ops->idc_unlock(ha);
6267 goto exit_error_recovery;
6268 }
2232be0d 6269
2232be0d 6270 clear_bit(AF_FW_RECOVERY, &ha->flags);
13483730 6271 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
2232be0d
LC		 6272
6273 if (rval != QLA_SUCCESS) {
6274 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: "
6275 "FAILED\n", ha->host_no, __func__);
82761907 6276 ha->isp_ops->idc_lock(ha);
2232be0d 6277 qla4_8xxx_clear_drv_active(ha);
33693c7a
VC		 6278 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
6279 QLA8XXX_DEV_FAILED);
82761907 6280 ha->isp_ops->idc_unlock(ha);
2232be0d
LC		 6281 } else {
6282 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: "
6283 "READY\n", ha->host_no, __func__);
82761907 6284 ha->isp_ops->idc_lock(ha);
33693c7a
VC		 6285 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
6286 QLA8XXX_DEV_READY);
2232be0d 6287 /* Clear driver state register */
33693c7a 6288 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_STATE, 0);
2232be0d 6289 qla4_8xxx_set_drv_active(ha);
82761907 6290 ha->isp_ops->idc_unlock(ha);
137257da 6291 ha->isp_ops->enable_intrs(ha);
2232be0d 6292 }
2232be0d
LC		 6293 } else {
6294 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn 0x%x is not "
6295 "the reset owner\n", ha->host_no, __func__,
6296 ha->pdev->devfn);
33693c7a
VC		 6297 if ((qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE) ==
6298 QLA8XXX_DEV_READY)) {
2232be0d 6299 clear_bit(AF_FW_RECOVERY, &ha->flags);
13483730 6300 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
137257da
PV		 6301 if (rval == QLA_SUCCESS)
6302 ha->isp_ops->enable_intrs(ha);
6303
33693c7a 6304 ha->isp_ops->idc_lock(ha);
2232be0d 6305 qla4_8xxx_set_drv_active(ha);
33693c7a 6306 ha->isp_ops->idc_unlock(ha);
2232be0d
LC		 6307 }
6308 }
39c95826 6309exit_error_recovery:
2232be0d
LC		 6310 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
6311 return rval;
6312}
6313
6314static pci_ers_result_t
6315qla4xxx_pci_slot_reset(struct pci_dev *pdev)
6316{
6317 pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
6318 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
6319 int rc;
6320
6321 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: slot_reset\n",
6322 ha->host_no, __func__);
6323
6324 if (!is_aer_supported(ha))
6325 return PCI_ERS_RESULT_NONE;
6326
6327 /* Restore the saved state of PCIe device -
6328 * BAR registers, PCI Config space, PCIX, MSI,
6329 * IOV states
6330 */
6331 pci_restore_state(pdev);
6332
6333 /* pci_restore_state() clears the saved_state flag of the device
6334 * save restored state which resets saved_state flag
6335 */
6336 pci_save_state(pdev);
6337
6338 /* Initialize device or resume if in suspended state */
6339 rc = pci_enable_device(pdev);
6340 if (rc) {
25985edc 6341 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Can't re-enable "
2232be0d
LC		 6342 "device after reset\n", ha->host_no, __func__);
6343 goto exit_slot_reset;
6344 }
6345
7b3595df 6346 ha->isp_ops->disable_intrs(ha);
2232be0d 6347
6e7b4292 6348 if (is_qla80XX(ha)) {
2232be0d
LC		 6349 if (qla4_8xxx_error_recovery(ha) == QLA_SUCCESS) {
6350 ret = PCI_ERS_RESULT_RECOVERED;
6351 goto exit_slot_reset;
6352 } else
6353 goto exit_slot_reset;
6354 }
6355
6356exit_slot_reset:
6357 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Return=%x\n"
6358 "device after reset\n", ha->host_no, __func__, ret);
6359 return ret;
6360}
6361
6362static void
6363qla4xxx_pci_resume(struct pci_dev *pdev)
6364{
6365 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
6366 int ret;
6367
6368 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: pci_resume\n",
6369 ha->host_no, __func__);
6370
6371 ret = qla4xxx_wait_for_hba_online(ha);
6372 if (ret != QLA_SUCCESS) {
6373 ql4_printk(KERN_ERR, ha, "scsi%ld: %s: the device failed to "
6374 "resume I/O from slot/link_reset\n", ha->host_no,
6375 __func__);
6376 }
6377
6378 pci_cleanup_aer_uncorrect_error_status(pdev);
6379 clear_bit(AF_EEH_BUSY, &ha->flags);
6380}
6381
a55b2d21 6382static const struct pci_error_handlers qla4xxx_err_handler = {
2232be0d
LC		 6383 .error_detected = qla4xxx_pci_error_detected,
6384 .mmio_enabled = qla4xxx_pci_mmio_enabled,
6385 .slot_reset = qla4xxx_pci_slot_reset,
6386 .resume = qla4xxx_pci_resume,
6387};
6388
afaf5a2d
DS		 6389static struct pci_device_id qla4xxx_pci_tbl[] = {
6390 {
6391 .vendor = PCI_VENDOR_ID_QLOGIC,
6392 .device = PCI_DEVICE_ID_QLOGIC_ISP4010,
6393 .subvendor = PCI_ANY_ID,
6394 .subdevice = PCI_ANY_ID,
6395 },
6396 {
6397 .vendor = PCI_VENDOR_ID_QLOGIC,
6398 .device = PCI_DEVICE_ID_QLOGIC_ISP4022,
6399 .subvendor = PCI_ANY_ID,
6400 .subdevice = PCI_ANY_ID,
6401 },
d915058f
DS		 6402 {
6403 .vendor = PCI_VENDOR_ID_QLOGIC,
6404 .device = PCI_DEVICE_ID_QLOGIC_ISP4032,
6405 .subvendor = PCI_ANY_ID,
6406 .subdevice = PCI_ANY_ID,
6407 },
f4f5df23
VC		 6408 {
6409 .vendor = PCI_VENDOR_ID_QLOGIC,
6410 .device = PCI_DEVICE_ID_QLOGIC_ISP8022,
6411 .subvendor = PCI_ANY_ID,
6412 .subdevice = PCI_ANY_ID,
6413 },
6e7b4292
VC		 6414 {
6415 .vendor = PCI_VENDOR_ID_QLOGIC,
6416 .device = PCI_DEVICE_ID_QLOGIC_ISP8324,
6417 .subvendor = PCI_ANY_ID,
6418 .subdevice = PCI_ANY_ID,
6419 },
afaf5a2d
DS		 6420 {0, 0},
6421};
6422MODULE_DEVICE_TABLE(pci, qla4xxx_pci_tbl);
6423
47975477 6424static struct pci_driver qla4xxx_pci_driver = {
afaf5a2d
DS		 6425 .name = DRIVER_NAME,
6426 .id_table = qla4xxx_pci_tbl,
6427 .probe = qla4xxx_probe_adapter,
6428 .remove = qla4xxx_remove_adapter,
2232be0d 6429 .err_handler = &qla4xxx_err_handler,
afaf5a2d
DS		 6430};
6431
6432static int __init qla4xxx_module_init(void)
6433{
6434 int ret;
6435
6436 /* Allocate cache for SRBs. */
6437 srb_cachep = kmem_cache_create("qla4xxx_srbs", sizeof(struct srb), 0,
20c2df83 6438 SLAB_HWCACHE_ALIGN, NULL);
afaf5a2d
DS		 6439 if (srb_cachep == NULL) {
6440 printk(KERN_ERR
6441 "%s: Unable to allocate SRB cache..."
6442 "Failing load!\n", DRIVER_NAME);
6443 ret = -ENOMEM;
6444 goto no_srp_cache;
6445 }
6446
6447 /* Derive version string. */
6448 strcpy(qla4xxx_version_str, QLA4XXX_DRIVER_VERSION);
11010fec 6449 if (ql4xextended_error_logging)
afaf5a2d
DS		 6450 strcat(qla4xxx_version_str, "-debug");
6451
6452 qla4xxx_scsi_transport =
6453 iscsi_register_transport(&qla4xxx_iscsi_transport);
6454 if (!qla4xxx_scsi_transport){
6455 ret = -ENODEV;
6456 goto release_srb_cache;
6457 }
6458
afaf5a2d
DS		 6459 ret = pci_register_driver(&qla4xxx_pci_driver);
6460 if (ret)
6461 goto unregister_transport;
6462
6463 printk(KERN_INFO "QLogic iSCSI HBA Driver\n");
6464 return 0;
5ae16db3 6465
afaf5a2d
DS		 6466unregister_transport:
6467 iscsi_unregister_transport(&qla4xxx_iscsi_transport);
6468release_srb_cache:
6469 kmem_cache_destroy(srb_cachep);
6470no_srp_cache:
6471 return ret;
6472}
6473
6474static void __exit qla4xxx_module_exit(void)
6475{
6476 pci_unregister_driver(&qla4xxx_pci_driver);
6477 iscsi_unregister_transport(&qla4xxx_iscsi_transport);
6478 kmem_cache_destroy(srb_cachep);
6479}
6480
6481module_init(qla4xxx_module_init);
6482module_exit(qla4xxx_module_exit);
6483
6484MODULE_AUTHOR("QLogic Corporation");
6485MODULE_DESCRIPTION("QLogic iSCSI HBA Driver");
6486MODULE_LICENSE("GPL");
6487MODULE_VERSION(QLA4XXX_DRIVER_VERSION);
Linux 6.x block layer and io_uring tree(s)