2 * QLogic iSCSI HBA Driver
3 * Copyright (c) 2003-2013 QLogic Corporation
5 * See LICENSE.qla4xxx for copyright and licensing details.
7 #include <linux/moduleparam.h>
8 #include <linux/slab.h>
9 #include <linux/blkdev.h>
10 #include <linux/iscsi_boot_sysfs.h>
11 #include <linux/inet.h>
13 #include <scsi/scsi_tcq.h>
14 #include <scsi/scsicam.h>
17 #include "ql4_version.h"
20 #include "ql4_inline.h"
26 static char qla4xxx_version_str[40];
29 * SRB allocation cache
31 static struct kmem_cache *srb_cachep;
34 * Module parameter information and variables
36 static int ql4xdisablesysfsboot = 1;
37 module_param(ql4xdisablesysfsboot, int, S_IRUGO | S_IWUSR);
38 MODULE_PARM_DESC(ql4xdisablesysfsboot,
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)");
44 module_param(ql4xdontresethba, int, S_IRUGO | S_IWUSR);
45 MODULE_PARM_DESC(ql4xdontresethba,
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");
50 int ql4xextended_error_logging;
51 module_param(ql4xextended_error_logging, int, S_IRUGO | S_IWUSR);
52 MODULE_PARM_DESC(ql4xextended_error_logging,
53 " Option to enable extended error logging.\n"
54 "\t\t 0 - no logging (Default)\n"
55 "\t\t 2 - debug logging");
57 int ql4xenablemsix = 1;
58 module_param(ql4xenablemsix, int, S_IRUGO|S_IWUSR);
59 MODULE_PARM_DESC(ql4xenablemsix,
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.");
65 #define QL4_DEF_QDEPTH 32
66 static int ql4xmaxqdepth = QL4_DEF_QDEPTH;
67 module_param(ql4xmaxqdepth, int, S_IRUGO | S_IWUSR);
68 MODULE_PARM_DESC(ql4xmaxqdepth,
69 " Maximum queue depth to report for target devices.\n"
72 static int ql4xqfulltracking = 1;
73 module_param(ql4xqfulltracking, int, S_IRUGO | S_IWUSR);
74 MODULE_PARM_DESC(ql4xqfulltracking,
75 " Enable or disable dynamic tracking and adjustment of\n"
76 "\t\t scsi device queue depth.\n"
78 "\t\t 1 - Enable. (Default)");
80 static int ql4xsess_recovery_tmo = QL4_SESS_RECOVERY_TMO;
81 module_param(ql4xsess_recovery_tmo, int, S_IRUGO);
82 MODULE_PARM_DESC(ql4xsess_recovery_tmo,
83 " Target Session Recovery Timeout.\n"
84 "\t\t Default: 120 sec.");
86 int ql4xmdcapmask = 0x1F;
87 module_param(ql4xmdcapmask, int, S_IRUGO);
88 MODULE_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");
94 module_param(ql4xenablemd, int, S_IRUGO | S_IWUSR);
95 MODULE_PARM_DESC(ql4xenablemd,
96 " Set to enable minidump.\n"
97 "\t\t 0 - disable minidump\n"
98 "\t\t 1 - enable minidump (Default)");
100 static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha);
102 * SCSI host template entry points
104 static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha);
107 * iSCSI template entry points
109 static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess,
110 enum iscsi_param param, char *buf);
111 static int qla4xxx_conn_get_param(struct iscsi_cls_conn *conn,
112 enum iscsi_param param, char *buf);
113 static int qla4xxx_host_get_param(struct Scsi_Host *shost,
114 enum iscsi_host_param param, char *buf);
115 static int qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data,
117 static int qla4xxx_get_iface_param(struct iscsi_iface *iface,
118 enum iscsi_param_type param_type,
119 int param, char *buf);
120 static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc);
121 static struct iscsi_endpoint *qla4xxx_ep_connect(struct Scsi_Host *shost,
122 struct sockaddr *dst_addr,
124 static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms);
125 static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep);
126 static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep,
127 enum iscsi_param param, char *buf);
128 static int qla4xxx_conn_start(struct iscsi_cls_conn *conn);
129 static struct iscsi_cls_conn *
130 qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx);
131 static 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);
134 static void qla4xxx_conn_destroy(struct iscsi_cls_conn *conn);
135 static struct iscsi_cls_session *
136 qla4xxx_session_create(struct iscsi_endpoint *ep, uint16_t cmds_max,
137 uint16_t qdepth, uint32_t initial_cmdsn);
138 static void qla4xxx_session_destroy(struct iscsi_cls_session *sess);
139 static void qla4xxx_task_work(struct work_struct *wdata);
140 static int qla4xxx_alloc_pdu(struct iscsi_task *, uint8_t);
141 static int qla4xxx_task_xmit(struct iscsi_task *);
142 static void qla4xxx_task_cleanup(struct iscsi_task *);
143 static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session);
144 static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn,
145 struct iscsi_stats *stats);
146 static 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);
149 static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx,
150 uint32_t *num_entries, char *buf);
151 static int qla4xxx_delete_chap(struct Scsi_Host *shost, uint16_t chap_tbl_idx);
154 * SCSI host template entry points
156 static int qla4xxx_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *cmd);
157 static int qla4xxx_eh_abort(struct scsi_cmnd *cmd);
158 static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd);
159 static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd);
160 static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd);
161 static int qla4xxx_slave_alloc(struct scsi_device *device);
162 static int qla4xxx_slave_configure(struct scsi_device *device);
163 static void qla4xxx_slave_destroy(struct scsi_device *sdev);
164 static umode_t qla4_attr_is_visible(int param_type, int param);
165 static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type);
166 static int qla4xxx_change_queue_depth(struct scsi_device *sdev, int qdepth,
170 * iSCSI Flash DDB sysfs entry points
173 qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess,
174 struct iscsi_bus_flash_conn *fnode_conn,
175 void *data, int len);
177 qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session *fnode_sess,
178 int param, char *buf);
179 static int qla4xxx_sysfs_ddb_add(struct Scsi_Host *shost, const char *buf,
182 qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess);
183 static int qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess,
184 struct iscsi_bus_flash_conn *fnode_conn);
185 static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess,
186 struct iscsi_bus_flash_conn *fnode_conn);
187 static int qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess);
189 static struct qla4_8xxx_legacy_intr_set legacy_intr[] =
190 QLA82XX_LEGACY_INTR_CONFIG;
192 static struct scsi_host_template qla4xxx_driver_template = {
193 .module = THIS_MODULE,
195 .proc_name = DRIVER_NAME,
196 .queuecommand = qla4xxx_queuecommand,
198 .eh_abort_handler = qla4xxx_eh_abort,
199 .eh_device_reset_handler = qla4xxx_eh_device_reset,
200 .eh_target_reset_handler = qla4xxx_eh_target_reset,
201 .eh_host_reset_handler = qla4xxx_eh_host_reset,
202 .eh_timed_out = qla4xxx_eh_cmd_timed_out,
204 .slave_configure = qla4xxx_slave_configure,
205 .slave_alloc = qla4xxx_slave_alloc,
206 .slave_destroy = qla4xxx_slave_destroy,
207 .change_queue_depth = qla4xxx_change_queue_depth,
211 .use_clustering = ENABLE_CLUSTERING,
212 .sg_tablesize = SG_ALL,
214 .max_sectors = 0xFFFF,
215 .shost_attrs = qla4xxx_host_attrs,
216 .host_reset = qla4xxx_host_reset,
217 .vendor_id = SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC,
220 static struct iscsi_transport qla4xxx_iscsi_transport = {
221 .owner = THIS_MODULE,
223 .caps = CAP_TEXT_NEGO |
224 CAP_DATA_PATH_OFFLOAD | CAP_HDRDGST |
225 CAP_DATADGST | CAP_LOGIN_OFFLOAD |
227 .attr_is_visible = qla4_attr_is_visible,
228 .create_session = qla4xxx_session_create,
229 .destroy_session = qla4xxx_session_destroy,
230 .start_conn = qla4xxx_conn_start,
231 .create_conn = qla4xxx_conn_create,
232 .bind_conn = qla4xxx_conn_bind,
233 .stop_conn = iscsi_conn_stop,
234 .destroy_conn = qla4xxx_conn_destroy,
235 .set_param = iscsi_set_param,
236 .get_conn_param = qla4xxx_conn_get_param,
237 .get_session_param = qla4xxx_session_get_param,
238 .get_ep_param = qla4xxx_get_ep_param,
239 .ep_connect = qla4xxx_ep_connect,
240 .ep_poll = qla4xxx_ep_poll,
241 .ep_disconnect = qla4xxx_ep_disconnect,
242 .get_stats = qla4xxx_conn_get_stats,
243 .send_pdu = iscsi_conn_send_pdu,
244 .xmit_task = qla4xxx_task_xmit,
245 .cleanup_task = qla4xxx_task_cleanup,
246 .alloc_pdu = qla4xxx_alloc_pdu,
248 .get_host_param = qla4xxx_host_get_param,
249 .set_iface_param = qla4xxx_iface_set_param,
250 .get_iface_param = qla4xxx_get_iface_param,
251 .bsg_request = qla4xxx_bsg_request,
252 .send_ping = qla4xxx_send_ping,
253 .get_chap = qla4xxx_get_chap_list,
254 .delete_chap = qla4xxx_delete_chap,
255 .get_flashnode_param = qla4xxx_sysfs_ddb_get_param,
256 .set_flashnode_param = qla4xxx_sysfs_ddb_set_param,
257 .new_flashnode = qla4xxx_sysfs_ddb_add,
258 .del_flashnode = qla4xxx_sysfs_ddb_delete,
259 .login_flashnode = qla4xxx_sysfs_ddb_login,
260 .logout_flashnode = qla4xxx_sysfs_ddb_logout,
261 .logout_flashnode_sid = qla4xxx_sysfs_ddb_logout_sid,
264 static struct scsi_transport_template *qla4xxx_scsi_transport;
266 static int qla4xxx_send_ping(struct Scsi_Host *shost, uint32_t iface_num,
267 uint32_t iface_type, uint32_t payload_size,
268 uint32_t pid, struct sockaddr *dst_addr)
270 struct scsi_qla_host *ha = to_qla_host(shost);
271 struct sockaddr_in *addr;
272 struct sockaddr_in6 *addr6;
273 uint32_t options = 0;
274 uint8_t ipaddr[IPv6_ADDR_LEN];
277 memset(ipaddr, 0, IPv6_ADDR_LEN);
279 if ((iface_type == ISCSI_IFACE_TYPE_IPV4) &&
280 (dst_addr->sa_family == AF_INET)) {
281 addr = (struct sockaddr_in *)dst_addr;
282 memcpy(ipaddr, &addr->sin_addr.s_addr, IP_ADDR_LEN);
283 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv4 Ping src: %pI4 "
284 "dest: %pI4\n", __func__,
285 &ha->ip_config.ip_address, ipaddr));
286 rval = qla4xxx_ping_iocb(ha, options, payload_size, pid,
290 } else if ((iface_type == ISCSI_IFACE_TYPE_IPV6) &&
291 (dst_addr->sa_family == AF_INET6)) {
293 addr6 = (struct sockaddr_in6 *)dst_addr;
294 memcpy(ipaddr, &addr6->sin6_addr.in6_u.u6_addr8, IPv6_ADDR_LEN);
296 options |= PING_IPV6_PROTOCOL_ENABLE;
298 /* Ping using LinkLocal address */
299 if ((iface_num == 0) || (iface_num == 1)) {
300 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: LinkLocal Ping "
301 "src: %pI6 dest: %pI6\n", __func__,
302 &ha->ip_config.ipv6_link_local_addr,
304 options |= PING_IPV6_LINKLOCAL_ADDR;
305 rval = qla4xxx_ping_iocb(ha, options, payload_size,
308 ql4_printk(KERN_WARNING, ha, "%s: iface num = %d "
309 "not supported\n", __func__, iface_num);
315 * If ping using LinkLocal address fails, try ping using
318 if (rval != QLA_SUCCESS) {
319 options &= ~PING_IPV6_LINKLOCAL_ADDR;
320 if (iface_num == 0) {
321 options |= PING_IPV6_ADDR0;
322 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv6 "
324 "dest: %pI6\n", __func__,
325 &ha->ip_config.ipv6_addr0,
327 } else if (iface_num == 1) {
328 options |= PING_IPV6_ADDR1;
329 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv6 "
331 "dest: %pI6\n", __func__,
332 &ha->ip_config.ipv6_addr1,
335 rval = qla4xxx_ping_iocb(ha, options, payload_size,
346 static umode_t qla4_attr_is_visible(int param_type, int param)
348 switch (param_type) {
349 case ISCSI_HOST_PARAM:
351 case ISCSI_HOST_PARAM_HWADDRESS:
352 case ISCSI_HOST_PARAM_IPADDRESS:
353 case ISCSI_HOST_PARAM_INITIATOR_NAME:
354 case ISCSI_HOST_PARAM_PORT_STATE:
355 case ISCSI_HOST_PARAM_PORT_SPEED:
362 case ISCSI_PARAM_PERSISTENT_ADDRESS:
363 case ISCSI_PARAM_PERSISTENT_PORT:
364 case ISCSI_PARAM_CONN_ADDRESS:
365 case ISCSI_PARAM_CONN_PORT:
366 case ISCSI_PARAM_TARGET_NAME:
367 case ISCSI_PARAM_TPGT:
368 case ISCSI_PARAM_TARGET_ALIAS:
369 case ISCSI_PARAM_MAX_BURST:
370 case ISCSI_PARAM_MAX_R2T:
371 case ISCSI_PARAM_FIRST_BURST:
372 case ISCSI_PARAM_MAX_RECV_DLENGTH:
373 case ISCSI_PARAM_MAX_XMIT_DLENGTH:
374 case ISCSI_PARAM_IFACE_NAME:
375 case ISCSI_PARAM_CHAP_OUT_IDX:
376 case ISCSI_PARAM_CHAP_IN_IDX:
377 case ISCSI_PARAM_USERNAME:
378 case ISCSI_PARAM_PASSWORD:
379 case ISCSI_PARAM_USERNAME_IN:
380 case ISCSI_PARAM_PASSWORD_IN:
381 case ISCSI_PARAM_AUTO_SND_TGT_DISABLE:
382 case ISCSI_PARAM_DISCOVERY_SESS:
383 case ISCSI_PARAM_PORTAL_TYPE:
384 case ISCSI_PARAM_CHAP_AUTH_EN:
385 case ISCSI_PARAM_DISCOVERY_LOGOUT_EN:
386 case ISCSI_PARAM_BIDI_CHAP_EN:
387 case ISCSI_PARAM_DISCOVERY_AUTH_OPTIONAL:
388 case ISCSI_PARAM_DEF_TIME2WAIT:
389 case ISCSI_PARAM_DEF_TIME2RETAIN:
390 case ISCSI_PARAM_HDRDGST_EN:
391 case ISCSI_PARAM_DATADGST_EN:
392 case ISCSI_PARAM_INITIAL_R2T_EN:
393 case ISCSI_PARAM_IMM_DATA_EN:
394 case ISCSI_PARAM_PDU_INORDER_EN:
395 case ISCSI_PARAM_DATASEQ_INORDER_EN:
396 case ISCSI_PARAM_MAX_SEGMENT_SIZE:
397 case ISCSI_PARAM_TCP_TIMESTAMP_STAT:
398 case ISCSI_PARAM_TCP_WSF_DISABLE:
399 case ISCSI_PARAM_TCP_NAGLE_DISABLE:
400 case ISCSI_PARAM_TCP_TIMER_SCALE:
401 case ISCSI_PARAM_TCP_TIMESTAMP_EN:
402 case ISCSI_PARAM_TCP_XMIT_WSF:
403 case ISCSI_PARAM_TCP_RECV_WSF:
404 case ISCSI_PARAM_IP_FRAGMENT_DISABLE:
405 case ISCSI_PARAM_IPV4_TOS:
406 case ISCSI_PARAM_IPV6_TC:
407 case ISCSI_PARAM_IPV6_FLOW_LABEL:
408 case ISCSI_PARAM_IS_FW_ASSIGNED_IPV6:
409 case ISCSI_PARAM_KEEPALIVE_TMO:
410 case ISCSI_PARAM_LOCAL_PORT:
411 case ISCSI_PARAM_ISID:
412 case ISCSI_PARAM_TSID:
413 case ISCSI_PARAM_DEF_TASKMGMT_TMO:
414 case ISCSI_PARAM_ERL:
415 case ISCSI_PARAM_STATSN:
416 case ISCSI_PARAM_EXP_STATSN:
417 case ISCSI_PARAM_DISCOVERY_PARENT_IDX:
418 case ISCSI_PARAM_DISCOVERY_PARENT_TYPE:
423 case ISCSI_NET_PARAM:
425 case ISCSI_NET_PARAM_IPV4_ADDR:
426 case ISCSI_NET_PARAM_IPV4_SUBNET:
427 case ISCSI_NET_PARAM_IPV4_GW:
428 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
429 case ISCSI_NET_PARAM_IFACE_ENABLE:
430 case ISCSI_NET_PARAM_IPV6_LINKLOCAL:
431 case ISCSI_NET_PARAM_IPV6_ADDR:
432 case ISCSI_NET_PARAM_IPV6_ROUTER:
433 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG:
434 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG:
435 case ISCSI_NET_PARAM_VLAN_ID:
436 case ISCSI_NET_PARAM_VLAN_PRIORITY:
437 case ISCSI_NET_PARAM_VLAN_ENABLED:
438 case ISCSI_NET_PARAM_MTU:
439 case ISCSI_NET_PARAM_PORT:
444 case ISCSI_FLASHNODE_PARAM:
446 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6:
447 case ISCSI_FLASHNODE_PORTAL_TYPE:
448 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE:
449 case ISCSI_FLASHNODE_DISCOVERY_SESS:
450 case ISCSI_FLASHNODE_ENTRY_EN:
451 case ISCSI_FLASHNODE_HDR_DGST_EN:
452 case ISCSI_FLASHNODE_DATA_DGST_EN:
453 case ISCSI_FLASHNODE_IMM_DATA_EN:
454 case ISCSI_FLASHNODE_INITIAL_R2T_EN:
455 case ISCSI_FLASHNODE_DATASEQ_INORDER:
456 case ISCSI_FLASHNODE_PDU_INORDER:
457 case ISCSI_FLASHNODE_CHAP_AUTH_EN:
458 case ISCSI_FLASHNODE_SNACK_REQ_EN:
459 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN:
460 case ISCSI_FLASHNODE_BIDI_CHAP_EN:
461 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL:
462 case ISCSI_FLASHNODE_ERL:
463 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT:
464 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE:
465 case ISCSI_FLASHNODE_TCP_WSF_DISABLE:
466 case ISCSI_FLASHNODE_TCP_TIMER_SCALE:
467 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN:
468 case ISCSI_FLASHNODE_IP_FRAG_DISABLE:
469 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH:
470 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH:
471 case ISCSI_FLASHNODE_FIRST_BURST:
472 case ISCSI_FLASHNODE_DEF_TIME2WAIT:
473 case ISCSI_FLASHNODE_DEF_TIME2RETAIN:
474 case ISCSI_FLASHNODE_MAX_R2T:
475 case ISCSI_FLASHNODE_KEEPALIVE_TMO:
476 case ISCSI_FLASHNODE_ISID:
477 case ISCSI_FLASHNODE_TSID:
478 case ISCSI_FLASHNODE_PORT:
479 case ISCSI_FLASHNODE_MAX_BURST:
480 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO:
481 case ISCSI_FLASHNODE_IPADDR:
482 case ISCSI_FLASHNODE_ALIAS:
483 case ISCSI_FLASHNODE_REDIRECT_IPADDR:
484 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE:
485 case ISCSI_FLASHNODE_LOCAL_PORT:
486 case ISCSI_FLASHNODE_IPV4_TOS:
487 case ISCSI_FLASHNODE_IPV6_TC:
488 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL:
489 case ISCSI_FLASHNODE_NAME:
490 case ISCSI_FLASHNODE_TPGT:
491 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6:
492 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX:
493 case ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE:
494 case ISCSI_FLASHNODE_TCP_XMIT_WSF:
495 case ISCSI_FLASHNODE_TCP_RECV_WSF:
496 case ISCSI_FLASHNODE_CHAP_OUT_IDX:
497 case ISCSI_FLASHNODE_USERNAME:
498 case ISCSI_FLASHNODE_PASSWORD:
499 case ISCSI_FLASHNODE_STATSN:
500 case ISCSI_FLASHNODE_EXP_STATSN:
501 case ISCSI_FLASHNODE_IS_BOOT_TGT:
511 static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx,
512 uint32_t *num_entries, char *buf)
514 struct scsi_qla_host *ha = to_qla_host(shost);
515 struct ql4_chap_table *chap_table;
516 struct iscsi_chap_rec *chap_rec;
517 int max_chap_entries = 0;
518 int valid_chap_entries = 0;
522 max_chap_entries = (ha->hw.flt_chap_size / 2) /
523 sizeof(struct ql4_chap_table);
525 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
527 ql4_printk(KERN_INFO, ha, "%s: num_entries = %d, CHAP idx = %d\n",
528 __func__, *num_entries, chap_tbl_idx);
532 goto exit_get_chap_list;
535 chap_rec = (struct iscsi_chap_rec *) buf;
536 mutex_lock(&ha->chap_sem);
537 for (i = chap_tbl_idx; i < max_chap_entries; i++) {
538 chap_table = (struct ql4_chap_table *)ha->chap_list + i;
539 if (chap_table->cookie !=
540 __constant_cpu_to_le16(CHAP_VALID_COOKIE))
543 chap_rec->chap_tbl_idx = i;
544 strncpy(chap_rec->username, chap_table->name,
545 ISCSI_CHAP_AUTH_NAME_MAX_LEN);
546 strncpy(chap_rec->password, chap_table->secret,
547 QL4_CHAP_MAX_SECRET_LEN);
548 chap_rec->password_length = chap_table->secret_len;
550 if (chap_table->flags & BIT_7) /* local */
551 chap_rec->chap_type = CHAP_TYPE_OUT;
553 if (chap_table->flags & BIT_6) /* peer */
554 chap_rec->chap_type = CHAP_TYPE_IN;
558 valid_chap_entries++;
559 if (valid_chap_entries == *num_entries)
564 mutex_unlock(&ha->chap_sem);
567 ql4_printk(KERN_INFO, ha, "%s: Valid CHAP Entries = %d\n",
568 __func__, valid_chap_entries);
569 *num_entries = valid_chap_entries;
573 static int __qla4xxx_is_chap_active(struct device *dev, void *data)
576 uint16_t *chap_tbl_idx = (uint16_t *) data;
577 struct iscsi_cls_session *cls_session;
578 struct iscsi_session *sess;
579 struct ddb_entry *ddb_entry;
581 if (!iscsi_is_session_dev(dev))
582 goto exit_is_chap_active;
584 cls_session = iscsi_dev_to_session(dev);
585 sess = cls_session->dd_data;
586 ddb_entry = sess->dd_data;
588 if (iscsi_session_chkready(cls_session))
589 goto exit_is_chap_active;
591 if (ddb_entry->chap_tbl_idx == *chap_tbl_idx)
598 static int qla4xxx_is_chap_active(struct Scsi_Host *shost,
599 uint16_t chap_tbl_idx)
603 ret = device_for_each_child(&shost->shost_gendev, &chap_tbl_idx,
604 __qla4xxx_is_chap_active);
609 static int qla4xxx_delete_chap(struct Scsi_Host *shost, uint16_t chap_tbl_idx)
611 struct scsi_qla_host *ha = to_qla_host(shost);
612 struct ql4_chap_table *chap_table;
614 int max_chap_entries = 0;
619 chap_table = dma_pool_alloc(ha->chap_dma_pool, GFP_KERNEL, &chap_dma);
620 if (chap_table == NULL)
623 memset(chap_table, 0, sizeof(struct ql4_chap_table));
626 max_chap_entries = (ha->hw.flt_chap_size / 2) /
627 sizeof(struct ql4_chap_table);
629 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
631 if (chap_tbl_idx > max_chap_entries) {
633 goto exit_delete_chap;
636 /* Check if chap index is in use.
637 * If chap is in use don't delet chap entry */
638 ret = qla4xxx_is_chap_active(shost, chap_tbl_idx);
640 ql4_printk(KERN_INFO, ha, "CHAP entry %d is in use, cannot "
641 "delete from flash\n", chap_tbl_idx);
643 goto exit_delete_chap;
646 chap_size = sizeof(struct ql4_chap_table);
648 offset = FLASH_CHAP_OFFSET | (chap_tbl_idx * chap_size);
650 offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2);
651 /* flt_chap_size is CHAP table size for both ports
652 * so divide it by 2 to calculate the offset for second port
654 if (ha->port_num == 1)
655 offset += (ha->hw.flt_chap_size / 2);
656 offset += (chap_tbl_idx * chap_size);
659 ret = qla4xxx_get_flash(ha, chap_dma, offset, chap_size);
660 if (ret != QLA_SUCCESS) {
662 goto exit_delete_chap;
665 DEBUG2(ql4_printk(KERN_INFO, ha, "Chap Cookie: x%x\n",
666 __le16_to_cpu(chap_table->cookie)));
668 if (__le16_to_cpu(chap_table->cookie) != CHAP_VALID_COOKIE) {
669 ql4_printk(KERN_ERR, ha, "No valid chap entry found\n");
670 goto exit_delete_chap;
673 chap_table->cookie = __constant_cpu_to_le16(0xFFFF);
675 offset = FLASH_CHAP_OFFSET |
676 (chap_tbl_idx * sizeof(struct ql4_chap_table));
677 ret = qla4xxx_set_flash(ha, chap_dma, offset, chap_size,
678 FLASH_OPT_RMW_COMMIT);
679 if (ret == QLA_SUCCESS && ha->chap_list) {
680 mutex_lock(&ha->chap_sem);
681 /* Update ha chap_list cache */
682 memcpy((struct ql4_chap_table *)ha->chap_list + chap_tbl_idx,
683 chap_table, sizeof(struct ql4_chap_table));
684 mutex_unlock(&ha->chap_sem);
686 if (ret != QLA_SUCCESS)
690 dma_pool_free(ha->chap_dma_pool, chap_table, chap_dma);
694 static int qla4xxx_get_iface_param(struct iscsi_iface *iface,
695 enum iscsi_param_type param_type,
696 int param, char *buf)
698 struct Scsi_Host *shost = iscsi_iface_to_shost(iface);
699 struct scsi_qla_host *ha = to_qla_host(shost);
702 if (param_type != ISCSI_NET_PARAM)
706 case ISCSI_NET_PARAM_IPV4_ADDR:
707 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address);
709 case ISCSI_NET_PARAM_IPV4_SUBNET:
710 len = sprintf(buf, "%pI4\n", &ha->ip_config.subnet_mask);
712 case ISCSI_NET_PARAM_IPV4_GW:
713 len = sprintf(buf, "%pI4\n", &ha->ip_config.gateway);
715 case ISCSI_NET_PARAM_IFACE_ENABLE:
716 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
717 len = sprintf(buf, "%s\n",
718 (ha->ip_config.ipv4_options &
719 IPOPT_IPV4_PROTOCOL_ENABLE) ?
720 "enabled" : "disabled");
721 else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6)
722 len = sprintf(buf, "%s\n",
723 (ha->ip_config.ipv6_options &
724 IPV6_OPT_IPV6_PROTOCOL_ENABLE) ?
725 "enabled" : "disabled");
727 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
728 len = sprintf(buf, "%s\n",
729 (ha->ip_config.tcp_options & TCPOPT_DHCP_ENABLE) ?
732 case ISCSI_NET_PARAM_IPV6_ADDR:
733 if (iface->iface_num == 0)
734 len = sprintf(buf, "%pI6\n", &ha->ip_config.ipv6_addr0);
735 if (iface->iface_num == 1)
736 len = sprintf(buf, "%pI6\n", &ha->ip_config.ipv6_addr1);
738 case ISCSI_NET_PARAM_IPV6_LINKLOCAL:
739 len = sprintf(buf, "%pI6\n",
740 &ha->ip_config.ipv6_link_local_addr);
742 case ISCSI_NET_PARAM_IPV6_ROUTER:
743 len = sprintf(buf, "%pI6\n",
744 &ha->ip_config.ipv6_default_router_addr);
746 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG:
747 len = sprintf(buf, "%s\n",
748 (ha->ip_config.ipv6_addl_options &
749 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE) ?
752 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG:
753 len = sprintf(buf, "%s\n",
754 (ha->ip_config.ipv6_addl_options &
755 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR) ?
758 case ISCSI_NET_PARAM_VLAN_ID:
759 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
760 len = sprintf(buf, "%d\n",
761 (ha->ip_config.ipv4_vlan_tag &
763 else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6)
764 len = sprintf(buf, "%d\n",
765 (ha->ip_config.ipv6_vlan_tag &
768 case ISCSI_NET_PARAM_VLAN_PRIORITY:
769 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
770 len = sprintf(buf, "%d\n",
771 ((ha->ip_config.ipv4_vlan_tag >> 13) &
772 ISCSI_MAX_VLAN_PRIORITY));
773 else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6)
774 len = sprintf(buf, "%d\n",
775 ((ha->ip_config.ipv6_vlan_tag >> 13) &
776 ISCSI_MAX_VLAN_PRIORITY));
778 case ISCSI_NET_PARAM_VLAN_ENABLED:
779 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
780 len = sprintf(buf, "%s\n",
781 (ha->ip_config.ipv4_options &
782 IPOPT_VLAN_TAGGING_ENABLE) ?
783 "enabled" : "disabled");
784 else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6)
785 len = sprintf(buf, "%s\n",
786 (ha->ip_config.ipv6_options &
787 IPV6_OPT_VLAN_TAGGING_ENABLE) ?
788 "enabled" : "disabled");
790 case ISCSI_NET_PARAM_MTU:
791 len = sprintf(buf, "%d\n", ha->ip_config.eth_mtu_size);
793 case ISCSI_NET_PARAM_PORT:
794 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
795 len = sprintf(buf, "%d\n", ha->ip_config.ipv4_port);
796 else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6)
797 len = sprintf(buf, "%d\n", ha->ip_config.ipv6_port);
806 static struct iscsi_endpoint *
807 qla4xxx_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr,
811 struct iscsi_endpoint *ep;
812 struct qla_endpoint *qla_ep;
813 struct scsi_qla_host *ha;
814 struct sockaddr_in *addr;
815 struct sockaddr_in6 *addr6;
817 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
820 printk(KERN_ERR "%s: shost is NULL\n",
825 ha = iscsi_host_priv(shost);
827 ep = iscsi_create_endpoint(sizeof(struct qla_endpoint));
833 qla_ep = ep->dd_data;
834 memset(qla_ep, 0, sizeof(struct qla_endpoint));
835 if (dst_addr->sa_family == AF_INET) {
836 memcpy(&qla_ep->dst_addr, dst_addr, sizeof(struct sockaddr_in));
837 addr = (struct sockaddr_in *)&qla_ep->dst_addr;
838 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI4\n", __func__,
839 (char *)&addr->sin_addr));
840 } else if (dst_addr->sa_family == AF_INET6) {
841 memcpy(&qla_ep->dst_addr, dst_addr,
842 sizeof(struct sockaddr_in6));
843 addr6 = (struct sockaddr_in6 *)&qla_ep->dst_addr;
844 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI6\n", __func__,
845 (char *)&addr6->sin6_addr));
848 qla_ep->host = shost;
853 static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms)
855 struct qla_endpoint *qla_ep;
856 struct scsi_qla_host *ha;
859 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
860 qla_ep = ep->dd_data;
861 ha = to_qla_host(qla_ep->host);
863 if (adapter_up(ha) && !test_bit(AF_BUILD_DDB_LIST, &ha->flags))
869 static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep)
871 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
872 iscsi_destroy_endpoint(ep);
875 static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep,
876 enum iscsi_param param,
879 struct qla_endpoint *qla_ep = ep->dd_data;
880 struct sockaddr *dst_addr;
882 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
885 case ISCSI_PARAM_CONN_PORT:
886 case ISCSI_PARAM_CONN_ADDRESS:
890 dst_addr = (struct sockaddr *)&qla_ep->dst_addr;
894 return iscsi_conn_get_addr_param((struct sockaddr_storage *)
895 &qla_ep->dst_addr, param, buf);
901 static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn,
902 struct iscsi_stats *stats)
904 struct iscsi_session *sess;
905 struct iscsi_cls_session *cls_sess;
906 struct ddb_entry *ddb_entry;
907 struct scsi_qla_host *ha;
908 struct ql_iscsi_stats *ql_iscsi_stats;
911 dma_addr_t iscsi_stats_dma;
913 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
915 cls_sess = iscsi_conn_to_session(cls_conn);
916 sess = cls_sess->dd_data;
917 ddb_entry = sess->dd_data;
920 stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats));
921 /* Allocate memory */
922 ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size,
923 &iscsi_stats_dma, GFP_KERNEL);
924 if (!ql_iscsi_stats) {
925 ql4_printk(KERN_ERR, ha,
926 "Unable to allocate memory for iscsi stats\n");
930 ret = qla4xxx_get_mgmt_data(ha, ddb_entry->fw_ddb_index, stats_size,
932 if (ret != QLA_SUCCESS) {
933 ql4_printk(KERN_ERR, ha,
934 "Unable to retrieve iscsi stats\n");
939 stats->txdata_octets = le64_to_cpu(ql_iscsi_stats->tx_data_octets);
940 stats->rxdata_octets = le64_to_cpu(ql_iscsi_stats->rx_data_octets);
942 stats->noptx_pdus = le32_to_cpu(ql_iscsi_stats->tx_nopout_pdus);
943 stats->scsicmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_cmd_pdus);
944 stats->tmfcmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_tmf_cmd_pdus);
945 stats->login_pdus = le32_to_cpu(ql_iscsi_stats->tx_login_cmd_pdus);
946 stats->text_pdus = le32_to_cpu(ql_iscsi_stats->tx_text_cmd_pdus);
947 stats->dataout_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_write_pdus);
948 stats->logout_pdus = le32_to_cpu(ql_iscsi_stats->tx_logout_cmd_pdus);
949 stats->snack_pdus = le32_to_cpu(ql_iscsi_stats->tx_snack_req_pdus);
951 stats->noprx_pdus = le32_to_cpu(ql_iscsi_stats->rx_nopin_pdus);
952 stats->scsirsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_resp_pdus);
953 stats->tmfrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_tmf_resp_pdus);
954 stats->textrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_text_resp_pdus);
955 stats->datain_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_read_pdus);
956 stats->logoutrsp_pdus =
957 le32_to_cpu(ql_iscsi_stats->rx_logout_resp_pdus);
958 stats->r2t_pdus = le32_to_cpu(ql_iscsi_stats->rx_r2t_pdus);
959 stats->async_pdus = le32_to_cpu(ql_iscsi_stats->rx_async_pdus);
960 stats->rjt_pdus = le32_to_cpu(ql_iscsi_stats->rx_reject_pdus);
963 dma_free_coherent(&ha->pdev->dev, stats_size, ql_iscsi_stats,
969 static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc)
971 struct iscsi_cls_session *session;
972 struct iscsi_session *sess;
974 enum blk_eh_timer_return ret = BLK_EH_NOT_HANDLED;
976 session = starget_to_session(scsi_target(sc->device));
977 sess = session->dd_data;
979 spin_lock_irqsave(&session->lock, flags);
980 if (session->state == ISCSI_SESSION_FAILED)
981 ret = BLK_EH_RESET_TIMER;
982 spin_unlock_irqrestore(&session->lock, flags);
987 static void qla4xxx_set_port_speed(struct Scsi_Host *shost)
989 struct scsi_qla_host *ha = to_qla_host(shost);
990 struct iscsi_cls_host *ihost = shost->shost_data;
991 uint32_t speed = ISCSI_PORT_SPEED_UNKNOWN;
993 qla4xxx_get_firmware_state(ha);
995 switch (ha->addl_fw_state & 0x0F00) {
996 case FW_ADDSTATE_LINK_SPEED_10MBPS:
997 speed = ISCSI_PORT_SPEED_10MBPS;
999 case FW_ADDSTATE_LINK_SPEED_100MBPS:
1000 speed = ISCSI_PORT_SPEED_100MBPS;
1002 case FW_ADDSTATE_LINK_SPEED_1GBPS:
1003 speed = ISCSI_PORT_SPEED_1GBPS;
1005 case FW_ADDSTATE_LINK_SPEED_10GBPS:
1006 speed = ISCSI_PORT_SPEED_10GBPS;
1009 ihost->port_speed = speed;
1012 static void qla4xxx_set_port_state(struct Scsi_Host *shost)
1014 struct scsi_qla_host *ha = to_qla_host(shost);
1015 struct iscsi_cls_host *ihost = shost->shost_data;
1016 uint32_t state = ISCSI_PORT_STATE_DOWN;
1018 if (test_bit(AF_LINK_UP, &ha->flags))
1019 state = ISCSI_PORT_STATE_UP;
1021 ihost->port_state = state;
1024 static int qla4xxx_host_get_param(struct Scsi_Host *shost,
1025 enum iscsi_host_param param, char *buf)
1027 struct scsi_qla_host *ha = to_qla_host(shost);
1031 case ISCSI_HOST_PARAM_HWADDRESS:
1032 len = sysfs_format_mac(buf, ha->my_mac, MAC_ADDR_LEN);
1034 case ISCSI_HOST_PARAM_IPADDRESS:
1035 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address);
1037 case ISCSI_HOST_PARAM_INITIATOR_NAME:
1038 len = sprintf(buf, "%s\n", ha->name_string);
1040 case ISCSI_HOST_PARAM_PORT_STATE:
1041 qla4xxx_set_port_state(shost);
1042 len = sprintf(buf, "%s\n", iscsi_get_port_state_name(shost));
1044 case ISCSI_HOST_PARAM_PORT_SPEED:
1045 qla4xxx_set_port_speed(shost);
1046 len = sprintf(buf, "%s\n", iscsi_get_port_speed_name(shost));
1055 static void qla4xxx_create_ipv4_iface(struct scsi_qla_host *ha)
1061 ha->iface_ipv4 = iscsi_create_iface(ha->host,
1062 &qla4xxx_iscsi_transport,
1063 ISCSI_IFACE_TYPE_IPV4, 0, 0);
1064 if (!ha->iface_ipv4)
1065 ql4_printk(KERN_ERR, ha, "Could not create IPv4 iSCSI "
1069 static void qla4xxx_create_ipv6_iface(struct scsi_qla_host *ha)
1071 if (!ha->iface_ipv6_0)
1073 ha->iface_ipv6_0 = iscsi_create_iface(ha->host,
1074 &qla4xxx_iscsi_transport,
1075 ISCSI_IFACE_TYPE_IPV6, 0,
1077 if (!ha->iface_ipv6_0)
1078 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI "
1081 if (!ha->iface_ipv6_1)
1083 ha->iface_ipv6_1 = iscsi_create_iface(ha->host,
1084 &qla4xxx_iscsi_transport,
1085 ISCSI_IFACE_TYPE_IPV6, 1,
1087 if (!ha->iface_ipv6_1)
1088 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI "
1092 static void qla4xxx_create_ifaces(struct scsi_qla_host *ha)
1094 if (ha->ip_config.ipv4_options & IPOPT_IPV4_PROTOCOL_ENABLE)
1095 qla4xxx_create_ipv4_iface(ha);
1097 if (ha->ip_config.ipv6_options & IPV6_OPT_IPV6_PROTOCOL_ENABLE)
1098 qla4xxx_create_ipv6_iface(ha);
1101 static void qla4xxx_destroy_ipv4_iface(struct scsi_qla_host *ha)
1103 if (ha->iface_ipv4) {
1104 iscsi_destroy_iface(ha->iface_ipv4);
1105 ha->iface_ipv4 = NULL;
1109 static void qla4xxx_destroy_ipv6_iface(struct scsi_qla_host *ha)
1111 if (ha->iface_ipv6_0) {
1112 iscsi_destroy_iface(ha->iface_ipv6_0);
1113 ha->iface_ipv6_0 = NULL;
1115 if (ha->iface_ipv6_1) {
1116 iscsi_destroy_iface(ha->iface_ipv6_1);
1117 ha->iface_ipv6_1 = NULL;
1121 static void qla4xxx_destroy_ifaces(struct scsi_qla_host *ha)
1123 qla4xxx_destroy_ipv4_iface(ha);
1124 qla4xxx_destroy_ipv6_iface(ha);
1127 static void qla4xxx_set_ipv6(struct scsi_qla_host *ha,
1128 struct iscsi_iface_param_info *iface_param,
1129 struct addr_ctrl_blk *init_fw_cb)
1132 * iface_num 0 is valid for IPv6 Addr, linklocal, router, autocfg.
1133 * iface_num 1 is valid only for IPv6 Addr.
1135 switch (iface_param->param) {
1136 case ISCSI_NET_PARAM_IPV6_ADDR:
1137 if (iface_param->iface_num & 0x1)
1139 memcpy(init_fw_cb->ipv6_addr1, iface_param->value,
1140 sizeof(init_fw_cb->ipv6_addr1));
1143 memcpy(init_fw_cb->ipv6_addr0, iface_param->value,
1144 sizeof(init_fw_cb->ipv6_addr0));
1146 case ISCSI_NET_PARAM_IPV6_LINKLOCAL:
1147 if (iface_param->iface_num & 0x1)
1149 memcpy(init_fw_cb->ipv6_if_id, &iface_param->value[8],
1150 sizeof(init_fw_cb->ipv6_if_id));
1152 case ISCSI_NET_PARAM_IPV6_ROUTER:
1153 if (iface_param->iface_num & 0x1)
1155 memcpy(init_fw_cb->ipv6_dflt_rtr_addr, iface_param->value,
1156 sizeof(init_fw_cb->ipv6_dflt_rtr_addr));
1158 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG:
1159 /* Autocfg applies to even interface */
1160 if (iface_param->iface_num & 0x1)
1163 if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_DISABLE)
1164 init_fw_cb->ipv6_addtl_opts &=
1166 ~IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE);
1167 else if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_ND_ENABLE)
1168 init_fw_cb->ipv6_addtl_opts |=
1170 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE);
1172 ql4_printk(KERN_ERR, ha, "Invalid autocfg setting for "
1175 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG:
1176 /* Autocfg applies to even interface */
1177 if (iface_param->iface_num & 0x1)
1180 if (iface_param->value[0] ==
1181 ISCSI_IPV6_LINKLOCAL_AUTOCFG_ENABLE)
1182 init_fw_cb->ipv6_addtl_opts |= cpu_to_le16(
1183 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR);
1184 else if (iface_param->value[0] ==
1185 ISCSI_IPV6_LINKLOCAL_AUTOCFG_DISABLE)
1186 init_fw_cb->ipv6_addtl_opts &= cpu_to_le16(
1187 ~IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR);
1189 ql4_printk(KERN_ERR, ha, "Invalid autocfg setting for "
1190 "IPv6 linklocal addr\n");
1192 case ISCSI_NET_PARAM_IPV6_ROUTER_AUTOCFG:
1193 /* Autocfg applies to even interface */
1194 if (iface_param->iface_num & 0x1)
1197 if (iface_param->value[0] == ISCSI_IPV6_ROUTER_AUTOCFG_ENABLE)
1198 memset(init_fw_cb->ipv6_dflt_rtr_addr, 0,
1199 sizeof(init_fw_cb->ipv6_dflt_rtr_addr));
1201 case ISCSI_NET_PARAM_IFACE_ENABLE:
1202 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) {
1203 init_fw_cb->ipv6_opts |=
1204 cpu_to_le16(IPV6_OPT_IPV6_PROTOCOL_ENABLE);
1205 qla4xxx_create_ipv6_iface(ha);
1207 init_fw_cb->ipv6_opts &=
1208 cpu_to_le16(~IPV6_OPT_IPV6_PROTOCOL_ENABLE &
1210 qla4xxx_destroy_ipv6_iface(ha);
1213 case ISCSI_NET_PARAM_VLAN_TAG:
1214 if (iface_param->len != sizeof(init_fw_cb->ipv6_vlan_tag))
1216 init_fw_cb->ipv6_vlan_tag =
1217 cpu_to_be16(*(uint16_t *)iface_param->value);
1219 case ISCSI_NET_PARAM_VLAN_ENABLED:
1220 if (iface_param->value[0] == ISCSI_VLAN_ENABLE)
1221 init_fw_cb->ipv6_opts |=
1222 cpu_to_le16(IPV6_OPT_VLAN_TAGGING_ENABLE);
1224 init_fw_cb->ipv6_opts &=
1225 cpu_to_le16(~IPV6_OPT_VLAN_TAGGING_ENABLE);
1227 case ISCSI_NET_PARAM_MTU:
1228 init_fw_cb->eth_mtu_size =
1229 cpu_to_le16(*(uint16_t *)iface_param->value);
1231 case ISCSI_NET_PARAM_PORT:
1232 /* Autocfg applies to even interface */
1233 if (iface_param->iface_num & 0x1)
1236 init_fw_cb->ipv6_port =
1237 cpu_to_le16(*(uint16_t *)iface_param->value);
1240 ql4_printk(KERN_ERR, ha, "Unknown IPv6 param = %d\n",
1241 iface_param->param);
1246 static void qla4xxx_set_ipv4(struct scsi_qla_host *ha,
1247 struct iscsi_iface_param_info *iface_param,
1248 struct addr_ctrl_blk *init_fw_cb)
1250 switch (iface_param->param) {
1251 case ISCSI_NET_PARAM_IPV4_ADDR:
1252 memcpy(init_fw_cb->ipv4_addr, iface_param->value,
1253 sizeof(init_fw_cb->ipv4_addr));
1255 case ISCSI_NET_PARAM_IPV4_SUBNET:
1256 memcpy(init_fw_cb->ipv4_subnet, iface_param->value,
1257 sizeof(init_fw_cb->ipv4_subnet));
1259 case ISCSI_NET_PARAM_IPV4_GW:
1260 memcpy(init_fw_cb->ipv4_gw_addr, iface_param->value,
1261 sizeof(init_fw_cb->ipv4_gw_addr));
1263 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
1264 if (iface_param->value[0] == ISCSI_BOOTPROTO_DHCP)
1265 init_fw_cb->ipv4_tcp_opts |=
1266 cpu_to_le16(TCPOPT_DHCP_ENABLE);
1267 else if (iface_param->value[0] == ISCSI_BOOTPROTO_STATIC)
1268 init_fw_cb->ipv4_tcp_opts &=
1269 cpu_to_le16(~TCPOPT_DHCP_ENABLE);
1271 ql4_printk(KERN_ERR, ha, "Invalid IPv4 bootproto\n");
1273 case ISCSI_NET_PARAM_IFACE_ENABLE:
1274 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) {
1275 init_fw_cb->ipv4_ip_opts |=
1276 cpu_to_le16(IPOPT_IPV4_PROTOCOL_ENABLE);
1277 qla4xxx_create_ipv4_iface(ha);
1279 init_fw_cb->ipv4_ip_opts &=
1280 cpu_to_le16(~IPOPT_IPV4_PROTOCOL_ENABLE &
1282 qla4xxx_destroy_ipv4_iface(ha);
1285 case ISCSI_NET_PARAM_VLAN_TAG:
1286 if (iface_param->len != sizeof(init_fw_cb->ipv4_vlan_tag))
1288 init_fw_cb->ipv4_vlan_tag =
1289 cpu_to_be16(*(uint16_t *)iface_param->value);
1291 case ISCSI_NET_PARAM_VLAN_ENABLED:
1292 if (iface_param->value[0] == ISCSI_VLAN_ENABLE)
1293 init_fw_cb->ipv4_ip_opts |=
1294 cpu_to_le16(IPOPT_VLAN_TAGGING_ENABLE);
1296 init_fw_cb->ipv4_ip_opts &=
1297 cpu_to_le16(~IPOPT_VLAN_TAGGING_ENABLE);
1299 case ISCSI_NET_PARAM_MTU:
1300 init_fw_cb->eth_mtu_size =
1301 cpu_to_le16(*(uint16_t *)iface_param->value);
1303 case ISCSI_NET_PARAM_PORT:
1304 init_fw_cb->ipv4_port =
1305 cpu_to_le16(*(uint16_t *)iface_param->value);
1308 ql4_printk(KERN_ERR, ha, "Unknown IPv4 param = %d\n",
1309 iface_param->param);
1315 qla4xxx_initcb_to_acb(struct addr_ctrl_blk *init_fw_cb)
1317 struct addr_ctrl_blk_def *acb;
1318 acb = (struct addr_ctrl_blk_def *)init_fw_cb;
1319 memset(acb->reserved1, 0, sizeof(acb->reserved1));
1320 memset(acb->reserved2, 0, sizeof(acb->reserved2));
1321 memset(acb->reserved3, 0, sizeof(acb->reserved3));
1322 memset(acb->reserved4, 0, sizeof(acb->reserved4));
1323 memset(acb->reserved5, 0, sizeof(acb->reserved5));
1324 memset(acb->reserved6, 0, sizeof(acb->reserved6));
1325 memset(acb->reserved7, 0, sizeof(acb->reserved7));
1326 memset(acb->reserved8, 0, sizeof(acb->reserved8));
1327 memset(acb->reserved9, 0, sizeof(acb->reserved9));
1328 memset(acb->reserved10, 0, sizeof(acb->reserved10));
1329 memset(acb->reserved11, 0, sizeof(acb->reserved11));
1330 memset(acb->reserved12, 0, sizeof(acb->reserved12));
1331 memset(acb->reserved13, 0, sizeof(acb->reserved13));
1332 memset(acb->reserved14, 0, sizeof(acb->reserved14));
1333 memset(acb->reserved15, 0, sizeof(acb->reserved15));
1337 qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data, uint32_t len)
1339 struct scsi_qla_host *ha = to_qla_host(shost);
1341 struct iscsi_iface_param_info *iface_param = NULL;
1342 struct addr_ctrl_blk *init_fw_cb = NULL;
1343 dma_addr_t init_fw_cb_dma;
1344 uint32_t mbox_cmd[MBOX_REG_COUNT];
1345 uint32_t mbox_sts[MBOX_REG_COUNT];
1347 struct nlattr *attr;
1349 init_fw_cb = dma_alloc_coherent(&ha->pdev->dev,
1350 sizeof(struct addr_ctrl_blk),
1351 &init_fw_cb_dma, GFP_KERNEL);
1353 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc init_cb\n",
1358 memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk));
1359 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1360 memset(&mbox_sts, 0, sizeof(mbox_sts));
1362 if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma)) {
1363 ql4_printk(KERN_ERR, ha, "%s: get ifcb failed\n", __func__);
1365 goto exit_init_fw_cb;
1368 nla_for_each_attr(attr, data, len, rem) {
1369 iface_param = nla_data(attr);
1371 if (iface_param->param_type != ISCSI_NET_PARAM)
1374 switch (iface_param->iface_type) {
1375 case ISCSI_IFACE_TYPE_IPV4:
1376 switch (iface_param->iface_num) {
1378 qla4xxx_set_ipv4(ha, iface_param, init_fw_cb);
1381 /* Cannot have more than one IPv4 interface */
1382 ql4_printk(KERN_ERR, ha, "Invalid IPv4 iface "
1384 iface_param->iface_num);
1388 case ISCSI_IFACE_TYPE_IPV6:
1389 switch (iface_param->iface_num) {
1392 qla4xxx_set_ipv6(ha, iface_param, init_fw_cb);
1395 /* Cannot have more than two IPv6 interface */
1396 ql4_printk(KERN_ERR, ha, "Invalid IPv6 iface "
1398 iface_param->iface_num);
1403 ql4_printk(KERN_ERR, ha, "Invalid iface type\n");
1408 init_fw_cb->cookie = cpu_to_le32(0x11BEAD5A);
1410 rval = qla4xxx_set_flash(ha, init_fw_cb_dma, FLASH_SEGMENT_IFCB,
1411 sizeof(struct addr_ctrl_blk),
1412 FLASH_OPT_RMW_COMMIT);
1413 if (rval != QLA_SUCCESS) {
1414 ql4_printk(KERN_ERR, ha, "%s: set flash mbx failed\n",
1417 goto exit_init_fw_cb;
1420 rval = qla4xxx_disable_acb(ha);
1421 if (rval != QLA_SUCCESS) {
1422 ql4_printk(KERN_ERR, ha, "%s: disable acb mbx failed\n",
1425 goto exit_init_fw_cb;
1428 wait_for_completion_timeout(&ha->disable_acb_comp,
1429 DISABLE_ACB_TOV * HZ);
1431 qla4xxx_initcb_to_acb(init_fw_cb);
1433 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma);
1434 if (rval != QLA_SUCCESS) {
1435 ql4_printk(KERN_ERR, ha, "%s: set acb mbx failed\n",
1438 goto exit_init_fw_cb;
1441 memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk));
1442 qla4xxx_update_local_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb,
1446 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk),
1447 init_fw_cb, init_fw_cb_dma);
1452 static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess,
1453 enum iscsi_param param, char *buf)
1455 struct iscsi_session *sess = cls_sess->dd_data;
1456 struct ddb_entry *ddb_entry = sess->dd_data;
1457 struct scsi_qla_host *ha = ddb_entry->ha;
1462 case ISCSI_PARAM_CHAP_IN_IDX:
1463 rval = qla4xxx_get_chap_index(ha, sess->username_in,
1464 sess->password_in, BIDI_CHAP,
1467 len = sprintf(buf, "\n");
1469 len = sprintf(buf, "%hu\n", idx);
1471 case ISCSI_PARAM_CHAP_OUT_IDX:
1472 rval = qla4xxx_get_chap_index(ha, sess->username,
1473 sess->password, LOCAL_CHAP,
1476 len = sprintf(buf, "\n");
1478 len = sprintf(buf, "%hu\n", idx);
1481 return iscsi_session_get_param(cls_sess, param, buf);
1487 static int qla4xxx_conn_get_param(struct iscsi_cls_conn *cls_conn,
1488 enum iscsi_param param, char *buf)
1490 struct iscsi_conn *conn;
1491 struct qla_conn *qla_conn;
1492 struct sockaddr *dst_addr;
1495 conn = cls_conn->dd_data;
1496 qla_conn = conn->dd_data;
1497 dst_addr = (struct sockaddr *)&qla_conn->qla_ep->dst_addr;
1500 case ISCSI_PARAM_CONN_PORT:
1501 case ISCSI_PARAM_CONN_ADDRESS:
1502 return iscsi_conn_get_addr_param((struct sockaddr_storage *)
1503 dst_addr, param, buf);
1505 return iscsi_conn_get_param(cls_conn, param, buf);
1512 int qla4xxx_get_ddb_index(struct scsi_qla_host *ha, uint16_t *ddb_index)
1514 uint32_t mbx_sts = 0;
1515 uint16_t tmp_ddb_index;
1519 tmp_ddb_index = find_first_zero_bit(ha->ddb_idx_map, MAX_DDB_ENTRIES);
1521 if (tmp_ddb_index >= MAX_DDB_ENTRIES) {
1522 DEBUG2(ql4_printk(KERN_INFO, ha,
1523 "Free DDB index not available\n"));
1525 goto exit_get_ddb_index;
1528 if (test_and_set_bit(tmp_ddb_index, ha->ddb_idx_map))
1531 DEBUG2(ql4_printk(KERN_INFO, ha,
1532 "Found a free DDB index at %d\n", tmp_ddb_index));
1533 ret = qla4xxx_req_ddb_entry(ha, tmp_ddb_index, &mbx_sts);
1534 if (ret == QLA_ERROR) {
1535 if (mbx_sts == MBOX_STS_COMMAND_ERROR) {
1536 ql4_printk(KERN_INFO, ha,
1537 "DDB index = %d not available trying next\n",
1541 DEBUG2(ql4_printk(KERN_INFO, ha,
1542 "Free FW DDB not available\n"));
1545 *ddb_index = tmp_ddb_index;
1551 static int qla4xxx_match_ipaddress(struct scsi_qla_host *ha,
1552 struct ddb_entry *ddb_entry,
1553 char *existing_ipaddr,
1556 uint8_t dst_ipaddr[IPv6_ADDR_LEN];
1557 char formatted_ipaddr[DDB_IPADDR_LEN];
1558 int status = QLA_SUCCESS, ret = 0;
1560 if (ddb_entry->fw_ddb_entry.options & DDB_OPT_IPV6_DEVICE) {
1561 ret = in6_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr,
1567 ret = sprintf(formatted_ipaddr, "%pI6", dst_ipaddr);
1569 ret = in4_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr,
1575 ret = sprintf(formatted_ipaddr, "%pI4", dst_ipaddr);
1578 if (strcmp(existing_ipaddr, formatted_ipaddr))
1585 static int qla4xxx_match_fwdb_session(struct scsi_qla_host *ha,
1586 struct iscsi_cls_conn *cls_conn)
1588 int idx = 0, max_ddbs, rval;
1589 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
1590 struct iscsi_session *sess, *existing_sess;
1591 struct iscsi_conn *conn, *existing_conn;
1592 struct ddb_entry *ddb_entry;
1594 sess = cls_sess->dd_data;
1595 conn = cls_conn->dd_data;
1597 if (sess->targetname == NULL ||
1598 conn->persistent_address == NULL ||
1599 conn->persistent_port == 0)
1602 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
1605 for (idx = 0; idx < max_ddbs; idx++) {
1606 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
1607 if (ddb_entry == NULL)
1610 if (ddb_entry->ddb_type != FLASH_DDB)
1613 existing_sess = ddb_entry->sess->dd_data;
1614 existing_conn = ddb_entry->conn->dd_data;
1616 if (existing_sess->targetname == NULL ||
1617 existing_conn->persistent_address == NULL ||
1618 existing_conn->persistent_port == 0)
1621 DEBUG2(ql4_printk(KERN_INFO, ha,
1622 "IQN = %s User IQN = %s\n",
1623 existing_sess->targetname,
1626 DEBUG2(ql4_printk(KERN_INFO, ha,
1627 "IP = %s User IP = %s\n",
1628 existing_conn->persistent_address,
1629 conn->persistent_address));
1631 DEBUG2(ql4_printk(KERN_INFO, ha,
1632 "Port = %d User Port = %d\n",
1633 existing_conn->persistent_port,
1634 conn->persistent_port));
1636 if (strcmp(existing_sess->targetname, sess->targetname))
1638 rval = qla4xxx_match_ipaddress(ha, ddb_entry,
1639 existing_conn->persistent_address,
1640 conn->persistent_address);
1641 if (rval == QLA_ERROR)
1643 if (existing_conn->persistent_port != conn->persistent_port)
1648 if (idx == max_ddbs)
1651 DEBUG2(ql4_printk(KERN_INFO, ha,
1652 "Match found in fwdb sessions\n"));
1656 static struct iscsi_cls_session *
1657 qla4xxx_session_create(struct iscsi_endpoint *ep,
1658 uint16_t cmds_max, uint16_t qdepth,
1659 uint32_t initial_cmdsn)
1661 struct iscsi_cls_session *cls_sess;
1662 struct scsi_qla_host *ha;
1663 struct qla_endpoint *qla_ep;
1664 struct ddb_entry *ddb_entry;
1666 struct iscsi_session *sess;
1667 struct sockaddr *dst_addr;
1670 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
1672 printk(KERN_ERR "qla4xxx: missing ep.\n");
1676 qla_ep = ep->dd_data;
1677 dst_addr = (struct sockaddr *)&qla_ep->dst_addr;
1678 ha = to_qla_host(qla_ep->host);
1680 ret = qla4xxx_get_ddb_index(ha, &ddb_index);
1681 if (ret == QLA_ERROR)
1684 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, qla_ep->host,
1685 cmds_max, sizeof(struct ddb_entry),
1686 sizeof(struct ql4_task_data),
1687 initial_cmdsn, ddb_index);
1691 sess = cls_sess->dd_data;
1692 ddb_entry = sess->dd_data;
1693 ddb_entry->fw_ddb_index = ddb_index;
1694 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE;
1696 ddb_entry->sess = cls_sess;
1697 ddb_entry->unblock_sess = qla4xxx_unblock_ddb;
1698 ddb_entry->ddb_change = qla4xxx_ddb_change;
1699 cls_sess->recovery_tmo = ql4xsess_recovery_tmo;
1700 ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry;
1706 static void qla4xxx_session_destroy(struct iscsi_cls_session *cls_sess)
1708 struct iscsi_session *sess;
1709 struct ddb_entry *ddb_entry;
1710 struct scsi_qla_host *ha;
1711 unsigned long flags, wtime;
1712 struct dev_db_entry *fw_ddb_entry = NULL;
1713 dma_addr_t fw_ddb_entry_dma;
1717 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
1718 sess = cls_sess->dd_data;
1719 ddb_entry = sess->dd_data;
1722 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
1723 &fw_ddb_entry_dma, GFP_KERNEL);
1724 if (!fw_ddb_entry) {
1725 ql4_printk(KERN_ERR, ha,
1726 "%s: Unable to allocate dma buffer\n", __func__);
1727 goto destroy_session;
1730 wtime = jiffies + (HZ * LOGOUT_TOV);
1732 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
1733 fw_ddb_entry, fw_ddb_entry_dma,
1734 NULL, NULL, &ddb_state, NULL,
1736 if (ret == QLA_ERROR)
1737 goto destroy_session;
1739 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) ||
1740 (ddb_state == DDB_DS_SESSION_FAILED))
1741 goto destroy_session;
1743 schedule_timeout_uninterruptible(HZ);
1744 } while ((time_after(wtime, jiffies)));
1747 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
1749 spin_lock_irqsave(&ha->hardware_lock, flags);
1750 qla4xxx_free_ddb(ha, ddb_entry);
1751 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1753 iscsi_session_teardown(cls_sess);
1756 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
1757 fw_ddb_entry, fw_ddb_entry_dma);
1760 static struct iscsi_cls_conn *
1761 qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx)
1763 struct iscsi_cls_conn *cls_conn;
1764 struct iscsi_session *sess;
1765 struct ddb_entry *ddb_entry;
1767 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
1768 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn),
1773 sess = cls_sess->dd_data;
1774 ddb_entry = sess->dd_data;
1775 ddb_entry->conn = cls_conn;
1780 static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session,
1781 struct iscsi_cls_conn *cls_conn,
1782 uint64_t transport_fd, int is_leading)
1784 struct iscsi_conn *conn;
1785 struct qla_conn *qla_conn;
1786 struct iscsi_endpoint *ep;
1788 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
1790 if (iscsi_conn_bind(cls_session, cls_conn, is_leading))
1792 ep = iscsi_lookup_endpoint(transport_fd);
1793 conn = cls_conn->dd_data;
1794 qla_conn = conn->dd_data;
1795 qla_conn->qla_ep = ep->dd_data;
1799 static int qla4xxx_conn_start(struct iscsi_cls_conn *cls_conn)
1801 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
1802 struct iscsi_session *sess;
1803 struct ddb_entry *ddb_entry;
1804 struct scsi_qla_host *ha;
1805 struct dev_db_entry *fw_ddb_entry = NULL;
1806 dma_addr_t fw_ddb_entry_dma;
1807 uint32_t mbx_sts = 0;
1809 int status = QLA_SUCCESS;
1811 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
1812 sess = cls_sess->dd_data;
1813 ddb_entry = sess->dd_data;
1816 /* Check if we have matching FW DDB, if yes then do not
1817 * login to this target. This could cause target to logout previous
1820 ret = qla4xxx_match_fwdb_session(ha, cls_conn);
1821 if (ret == QLA_SUCCESS) {
1822 ql4_printk(KERN_INFO, ha,
1823 "Session already exist in FW.\n");
1825 goto exit_conn_start;
1828 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
1829 &fw_ddb_entry_dma, GFP_KERNEL);
1830 if (!fw_ddb_entry) {
1831 ql4_printk(KERN_ERR, ha,
1832 "%s: Unable to allocate dma buffer\n", __func__);
1834 goto exit_conn_start;
1837 ret = qla4xxx_set_param_ddbentry(ha, ddb_entry, cls_conn, &mbx_sts);
1839 /* If iscsid is stopped and started then no need to do
1840 * set param again since ddb state will be already
1841 * active and FW does not allow set ddb to an
1845 if (ddb_entry->fw_ddb_device_state ==
1846 DDB_DS_SESSION_ACTIVE) {
1847 ddb_entry->unblock_sess(ddb_entry->sess);
1848 goto exit_set_param;
1851 ql4_printk(KERN_ERR, ha, "%s: Failed set param for index[%d]\n",
1852 __func__, ddb_entry->fw_ddb_index);
1853 goto exit_conn_start;
1856 status = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index);
1857 if (status == QLA_ERROR) {
1858 ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__,
1861 goto exit_conn_start;
1864 if (ddb_entry->fw_ddb_device_state == DDB_DS_NO_CONNECTION_ACTIVE)
1865 ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS;
1867 DEBUG2(printk(KERN_INFO "%s: DDB state [%d]\n", __func__,
1868 ddb_entry->fw_ddb_device_state));
1875 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
1876 fw_ddb_entry, fw_ddb_entry_dma);
1880 static void qla4xxx_conn_destroy(struct iscsi_cls_conn *cls_conn)
1882 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
1883 struct iscsi_session *sess;
1884 struct scsi_qla_host *ha;
1885 struct ddb_entry *ddb_entry;
1888 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
1889 sess = cls_sess->dd_data;
1890 ddb_entry = sess->dd_data;
1893 options = LOGOUT_OPTION_CLOSE_SESSION;
1894 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR)
1895 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__);
1898 static void qla4xxx_task_work(struct work_struct *wdata)
1900 struct ql4_task_data *task_data;
1901 struct scsi_qla_host *ha;
1902 struct passthru_status *sts;
1903 struct iscsi_task *task;
1904 struct iscsi_hdr *hdr;
1907 struct iscsi_conn *conn;
1911 task_data = container_of(wdata, struct ql4_task_data, task_work);
1913 task = task_data->task;
1914 sts = &task_data->sts;
1915 hdr_len = sizeof(struct iscsi_hdr);
1917 DEBUG3(printk(KERN_INFO "Status returned\n"));
1918 DEBUG3(qla4xxx_dump_buffer(sts, 64));
1919 DEBUG3(printk(KERN_INFO "Response buffer"));
1920 DEBUG3(qla4xxx_dump_buffer(task_data->resp_buffer, 64));
1924 switch (sts->completionStatus) {
1925 case PASSTHRU_STATUS_COMPLETE:
1926 hdr = (struct iscsi_hdr *)task_data->resp_buffer;
1927 /* Assign back the itt in hdr, until we use the PREASSIGN_TAG */
1930 data = task_data->resp_buffer + hdr_len;
1931 data_len = task_data->resp_len - hdr_len;
1932 iscsi_complete_pdu(conn, hdr, data, data_len);
1935 ql4_printk(KERN_ERR, ha, "Passthru failed status = 0x%x\n",
1936 sts->completionStatus);
1942 static int qla4xxx_alloc_pdu(struct iscsi_task *task, uint8_t opcode)
1944 struct ql4_task_data *task_data;
1945 struct iscsi_session *sess;
1946 struct ddb_entry *ddb_entry;
1947 struct scsi_qla_host *ha;
1950 sess = task->conn->session;
1951 ddb_entry = sess->dd_data;
1953 task_data = task->dd_data;
1954 memset(task_data, 0, sizeof(struct ql4_task_data));
1957 ql4_printk(KERN_INFO, ha,
1958 "%s: SCSI Commands not implemented\n", __func__);
1962 hdr_len = sizeof(struct iscsi_hdr);
1964 task_data->task = task;
1966 if (task->data_count) {
1967 task_data->data_dma = dma_map_single(&ha->pdev->dev, task->data,
1972 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n",
1973 __func__, task->conn->max_recv_dlength, hdr_len));
1975 task_data->resp_len = task->conn->max_recv_dlength + hdr_len;
1976 task_data->resp_buffer = dma_alloc_coherent(&ha->pdev->dev,
1977 task_data->resp_len,
1978 &task_data->resp_dma,
1980 if (!task_data->resp_buffer)
1981 goto exit_alloc_pdu;
1983 task_data->req_len = task->data_count + hdr_len;
1984 task_data->req_buffer = dma_alloc_coherent(&ha->pdev->dev,
1986 &task_data->req_dma,
1988 if (!task_data->req_buffer)
1989 goto exit_alloc_pdu;
1991 task->hdr = task_data->req_buffer;
1993 INIT_WORK(&task_data->task_work, qla4xxx_task_work);
1998 if (task_data->resp_buffer)
1999 dma_free_coherent(&ha->pdev->dev, task_data->resp_len,
2000 task_data->resp_buffer, task_data->resp_dma);
2002 if (task_data->req_buffer)
2003 dma_free_coherent(&ha->pdev->dev, task_data->req_len,
2004 task_data->req_buffer, task_data->req_dma);
2008 static void qla4xxx_task_cleanup(struct iscsi_task *task)
2010 struct ql4_task_data *task_data;
2011 struct iscsi_session *sess;
2012 struct ddb_entry *ddb_entry;
2013 struct scsi_qla_host *ha;
2016 hdr_len = sizeof(struct iscsi_hdr);
2017 sess = task->conn->session;
2018 ddb_entry = sess->dd_data;
2020 task_data = task->dd_data;
2022 if (task->data_count) {
2023 dma_unmap_single(&ha->pdev->dev, task_data->data_dma,
2024 task->data_count, PCI_DMA_TODEVICE);
2027 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n",
2028 __func__, task->conn->max_recv_dlength, hdr_len));
2030 dma_free_coherent(&ha->pdev->dev, task_data->resp_len,
2031 task_data->resp_buffer, task_data->resp_dma);
2032 dma_free_coherent(&ha->pdev->dev, task_data->req_len,
2033 task_data->req_buffer, task_data->req_dma);
2037 static int qla4xxx_task_xmit(struct iscsi_task *task)
2039 struct scsi_cmnd *sc = task->sc;
2040 struct iscsi_session *sess = task->conn->session;
2041 struct ddb_entry *ddb_entry = sess->dd_data;
2042 struct scsi_qla_host *ha = ddb_entry->ha;
2045 return qla4xxx_send_passthru0(task);
2047 ql4_printk(KERN_INFO, ha, "%s: scsi cmd xmit not implemented\n",
2052 static int qla4xxx_copy_from_fwddb_param(struct iscsi_bus_flash_session *sess,
2053 struct iscsi_bus_flash_conn *conn,
2054 struct dev_db_entry *fw_ddb_entry)
2056 unsigned long options = 0;
2059 options = le16_to_cpu(fw_ddb_entry->options);
2060 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options);
2061 if (test_bit(OPT_IPV6_DEVICE, &options)) {
2062 rc = iscsi_switch_str_param(&sess->portal_type,
2067 rc = iscsi_switch_str_param(&sess->portal_type,
2073 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE,
2075 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options);
2076 sess->entry_state = test_bit(OPT_ENTRY_STATE, &options);
2078 options = le16_to_cpu(fw_ddb_entry->iscsi_options);
2079 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options);
2080 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options);
2081 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options);
2082 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options);
2083 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER,
2085 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options);
2086 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options);
2087 conn->snack_req_en = test_bit(ISCSIOPT_SNACK_REQ_EN, &options);
2088 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN,
2090 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options);
2091 sess->discovery_auth_optional =
2092 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options);
2093 if (test_bit(ISCSIOPT_ERL1, &options))
2095 if (test_bit(ISCSIOPT_ERL0, &options))
2098 options = le16_to_cpu(fw_ddb_entry->tcp_options);
2099 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options);
2100 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options);
2101 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options);
2102 if (test_bit(TCPOPT_TIMER_SCALE3, &options))
2103 conn->tcp_timer_scale |= BIT_3;
2104 if (test_bit(TCPOPT_TIMER_SCALE2, &options))
2105 conn->tcp_timer_scale |= BIT_2;
2106 if (test_bit(TCPOPT_TIMER_SCALE1, &options))
2107 conn->tcp_timer_scale |= BIT_1;
2109 conn->tcp_timer_scale >>= 1;
2110 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options);
2112 options = le16_to_cpu(fw_ddb_entry->ip_options);
2113 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options);
2115 conn->max_recv_dlength = BYTE_UNITS *
2116 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len);
2117 conn->max_xmit_dlength = BYTE_UNITS *
2118 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len);
2119 sess->first_burst = BYTE_UNITS *
2120 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len);
2121 sess->max_burst = BYTE_UNITS *
2122 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len);
2123 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t);
2124 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
2125 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain);
2126 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
2127 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss);
2128 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf;
2129 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf;
2130 conn->ipv6_flow_label = le16_to_cpu(fw_ddb_entry->ipv6_flow_lbl);
2131 conn->keepalive_timeout = le16_to_cpu(fw_ddb_entry->ka_timeout);
2132 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port);
2133 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn);
2134 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn);
2135 sess->discovery_parent_idx = le16_to_cpu(fw_ddb_entry->ddb_link);
2136 sess->discovery_parent_type = le16_to_cpu(fw_ddb_entry->ddb_link);
2137 sess->chap_out_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
2138 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid);
2140 sess->default_taskmgmt_timeout =
2141 le16_to_cpu(fw_ddb_entry->def_timeout);
2142 conn->port = le16_to_cpu(fw_ddb_entry->port);
2144 options = le16_to_cpu(fw_ddb_entry->options);
2145 conn->ipaddress = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL);
2146 if (!conn->ipaddress) {
2151 conn->redirect_ipaddr = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL);
2152 if (!conn->redirect_ipaddr) {
2157 memcpy(conn->ipaddress, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN);
2158 memcpy(conn->redirect_ipaddr, fw_ddb_entry->tgt_addr, IPv6_ADDR_LEN);
2160 if (test_bit(OPT_IPV6_DEVICE, &options)) {
2161 conn->ipv6_traffic_class = fw_ddb_entry->ipv4_tos;
2163 conn->link_local_ipv6_addr = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL);
2164 if (!conn->link_local_ipv6_addr) {
2169 memcpy(conn->link_local_ipv6_addr,
2170 fw_ddb_entry->link_local_ipv6_addr, IPv6_ADDR_LEN);
2172 conn->ipv4_tos = fw_ddb_entry->ipv4_tos;
2175 if (fw_ddb_entry->iscsi_name[0]) {
2176 rc = iscsi_switch_str_param(&sess->targetname,
2177 (char *)fw_ddb_entry->iscsi_name);
2182 if (fw_ddb_entry->iscsi_alias[0]) {
2183 rc = iscsi_switch_str_param(&sess->targetalias,
2184 (char *)fw_ddb_entry->iscsi_alias);
2189 COPY_ISID(sess->isid, fw_ddb_entry->isid);
2195 static int qla4xxx_copy_to_fwddb_param(struct iscsi_bus_flash_session *sess,
2196 struct iscsi_bus_flash_conn *conn,
2197 struct dev_db_entry *fw_ddb_entry)
2202 options = le16_to_cpu(fw_ddb_entry->options);
2203 SET_BITVAL(conn->is_fw_assigned_ipv6, options, BIT_11);
2204 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4))
2209 SET_BITVAL(sess->auto_snd_tgt_disable, options, BIT_6);
2210 SET_BITVAL(sess->discovery_sess, options, BIT_4);
2211 SET_BITVAL(sess->entry_state, options, BIT_3);
2212 fw_ddb_entry->options = cpu_to_le16(options);
2214 options = le16_to_cpu(fw_ddb_entry->iscsi_options);
2215 SET_BITVAL(conn->hdrdgst_en, options, BIT_13);
2216 SET_BITVAL(conn->datadgst_en, options, BIT_12);
2217 SET_BITVAL(sess->imm_data_en, options, BIT_11);
2218 SET_BITVAL(sess->initial_r2t_en, options, BIT_10);
2219 SET_BITVAL(sess->dataseq_inorder_en, options, BIT_9);
2220 SET_BITVAL(sess->pdu_inorder_en, options, BIT_8);
2221 SET_BITVAL(sess->chap_auth_en, options, BIT_7);
2222 SET_BITVAL(conn->snack_req_en, options, BIT_6);
2223 SET_BITVAL(sess->discovery_logout_en, options, BIT_5);
2224 SET_BITVAL(sess->bidi_chap_en, options, BIT_4);
2225 SET_BITVAL(sess->discovery_auth_optional, options, BIT_3);
2226 SET_BITVAL(sess->erl & BIT_1, options, BIT_1);
2227 SET_BITVAL(sess->erl & BIT_0, options, BIT_0);
2228 fw_ddb_entry->iscsi_options = cpu_to_le16(options);
2230 options = le16_to_cpu(fw_ddb_entry->tcp_options);
2231 SET_BITVAL(conn->tcp_timestamp_stat, options, BIT_6);
2232 SET_BITVAL(conn->tcp_nagle_disable, options, BIT_5);
2233 SET_BITVAL(conn->tcp_wsf_disable, options, BIT_4);
2234 SET_BITVAL(conn->tcp_timer_scale & BIT_2, options, BIT_3);
2235 SET_BITVAL(conn->tcp_timer_scale & BIT_1, options, BIT_2);
2236 SET_BITVAL(conn->tcp_timer_scale & BIT_0, options, BIT_1);
2237 SET_BITVAL(conn->tcp_timestamp_en, options, BIT_0);
2238 fw_ddb_entry->tcp_options = cpu_to_le16(options);
2240 options = le16_to_cpu(fw_ddb_entry->ip_options);
2241 SET_BITVAL(conn->fragment_disable, options, BIT_4);
2242 fw_ddb_entry->ip_options = cpu_to_le16(options);
2244 fw_ddb_entry->iscsi_max_outsnd_r2t = cpu_to_le16(sess->max_r2t);
2245 fw_ddb_entry->iscsi_max_rcv_data_seg_len =
2246 cpu_to_le16(conn->max_recv_dlength / BYTE_UNITS);
2247 fw_ddb_entry->iscsi_max_snd_data_seg_len =
2248 cpu_to_le16(conn->max_xmit_dlength / BYTE_UNITS);
2249 fw_ddb_entry->iscsi_first_burst_len =
2250 cpu_to_le16(sess->first_burst / BYTE_UNITS);
2251 fw_ddb_entry->iscsi_max_burst_len = cpu_to_le16(sess->max_burst /
2253 fw_ddb_entry->iscsi_def_time2wait = cpu_to_le16(sess->time2wait);
2254 fw_ddb_entry->iscsi_def_time2retain = cpu_to_le16(sess->time2retain);
2255 fw_ddb_entry->tgt_portal_grp = cpu_to_le16(sess->tpgt);
2256 fw_ddb_entry->mss = cpu_to_le16(conn->max_segment_size);
2257 fw_ddb_entry->tcp_xmt_wsf = (uint8_t) cpu_to_le32(conn->tcp_xmit_wsf);
2258 fw_ddb_entry->tcp_rcv_wsf = (uint8_t) cpu_to_le32(conn->tcp_recv_wsf);
2259 fw_ddb_entry->ipv6_flow_lbl = cpu_to_le16(conn->ipv6_flow_label);
2260 fw_ddb_entry->ka_timeout = cpu_to_le16(conn->keepalive_timeout);
2261 fw_ddb_entry->lcl_port = cpu_to_le16(conn->local_port);
2262 fw_ddb_entry->stat_sn = cpu_to_le32(conn->statsn);
2263 fw_ddb_entry->exp_stat_sn = cpu_to_le32(conn->exp_statsn);
2264 fw_ddb_entry->ddb_link = cpu_to_le16(sess->discovery_parent_idx);
2265 fw_ddb_entry->chap_tbl_idx = cpu_to_le16(sess->chap_out_idx);
2266 fw_ddb_entry->tsid = cpu_to_le16(sess->tsid);
2267 fw_ddb_entry->port = cpu_to_le16(conn->port);
2268 fw_ddb_entry->def_timeout =
2269 cpu_to_le16(sess->default_taskmgmt_timeout);
2271 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4))
2272 fw_ddb_entry->ipv4_tos = conn->ipv6_traffic_class;
2274 fw_ddb_entry->ipv4_tos = conn->ipv4_tos;
2276 if (conn->ipaddress)
2277 memcpy(fw_ddb_entry->ip_addr, conn->ipaddress,
2278 sizeof(fw_ddb_entry->ip_addr));
2280 if (conn->redirect_ipaddr)
2281 memcpy(fw_ddb_entry->tgt_addr, conn->redirect_ipaddr,
2282 sizeof(fw_ddb_entry->tgt_addr));
2284 if (conn->link_local_ipv6_addr)
2285 memcpy(fw_ddb_entry->link_local_ipv6_addr,
2286 conn->link_local_ipv6_addr,
2287 sizeof(fw_ddb_entry->link_local_ipv6_addr));
2289 if (sess->targetname)
2290 memcpy(fw_ddb_entry->iscsi_name, sess->targetname,
2291 sizeof(fw_ddb_entry->iscsi_name));
2293 if (sess->targetalias)
2294 memcpy(fw_ddb_entry->iscsi_alias, sess->targetalias,
2295 sizeof(fw_ddb_entry->iscsi_alias));
2297 COPY_ISID(fw_ddb_entry->isid, sess->isid);
2302 static void qla4xxx_copy_to_sess_conn_params(struct iscsi_conn *conn,
2303 struct iscsi_session *sess,
2304 struct dev_db_entry *fw_ddb_entry)
2306 unsigned long options = 0;
2308 uint16_t disc_parent;
2310 options = le16_to_cpu(fw_ddb_entry->options);
2311 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options);
2312 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE,
2314 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options);
2316 options = le16_to_cpu(fw_ddb_entry->iscsi_options);
2317 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options);
2318 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options);
2319 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options);
2320 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options);
2321 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER,
2323 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options);
2324 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options);
2325 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN,
2327 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options);
2328 sess->discovery_auth_optional =
2329 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options);
2330 if (test_bit(ISCSIOPT_ERL1, &options))
2332 if (test_bit(ISCSIOPT_ERL0, &options))
2335 options = le16_to_cpu(fw_ddb_entry->tcp_options);
2336 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options);
2337 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options);
2338 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options);
2339 if (test_bit(TCPOPT_TIMER_SCALE3, &options))
2340 conn->tcp_timer_scale |= BIT_3;
2341 if (test_bit(TCPOPT_TIMER_SCALE2, &options))
2342 conn->tcp_timer_scale |= BIT_2;
2343 if (test_bit(TCPOPT_TIMER_SCALE1, &options))
2344 conn->tcp_timer_scale |= BIT_1;
2346 conn->tcp_timer_scale >>= 1;
2347 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options);
2349 options = le16_to_cpu(fw_ddb_entry->ip_options);
2350 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options);
2352 conn->max_recv_dlength = BYTE_UNITS *
2353 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len);
2354 conn->max_xmit_dlength = BYTE_UNITS *
2355 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len);
2356 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t);
2357 sess->first_burst = BYTE_UNITS *
2358 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len);
2359 sess->max_burst = BYTE_UNITS *
2360 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len);
2361 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
2362 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain);
2363 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
2364 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss);
2365 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf;
2366 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf;
2367 conn->ipv4_tos = fw_ddb_entry->ipv4_tos;
2368 conn->keepalive_tmo = le16_to_cpu(fw_ddb_entry->ka_timeout);
2369 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port);
2370 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn);
2371 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn);
2372 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid);
2373 COPY_ISID(sess->isid, fw_ddb_entry->isid);
2375 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
2376 if (ddb_link < MAX_DDB_ENTRIES)
2377 sess->discovery_parent_idx = ddb_link;
2379 sess->discovery_parent_idx = DDB_NO_LINK;
2381 if (ddb_link == DDB_ISNS)
2382 disc_parent = ISCSI_DISC_PARENT_ISNS;
2383 else if (ddb_link == DDB_NO_LINK)
2384 disc_parent = ISCSI_DISC_PARENT_UNKNOWN;
2385 else if (ddb_link < MAX_DDB_ENTRIES)
2386 disc_parent = ISCSI_DISC_PARENT_SENDTGT;
2388 disc_parent = ISCSI_DISC_PARENT_UNKNOWN;
2390 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_DISCOVERY_PARENT_TYPE,
2391 iscsi_get_discovery_parent_name(disc_parent), 0);
2393 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_TARGET_ALIAS,
2394 (char *)fw_ddb_entry->iscsi_alias, 0);
2397 static void qla4xxx_copy_fwddb_param(struct scsi_qla_host *ha,
2398 struct dev_db_entry *fw_ddb_entry,
2399 struct iscsi_cls_session *cls_sess,
2400 struct iscsi_cls_conn *cls_conn)
2403 struct iscsi_session *sess;
2404 struct ddb_entry *ddb_entry;
2405 struct iscsi_conn *conn;
2406 char ip_addr[DDB_IPADDR_LEN];
2407 uint16_t options = 0;
2409 sess = cls_sess->dd_data;
2410 ddb_entry = sess->dd_data;
2411 conn = cls_conn->dd_data;
2413 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
2415 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry);
2417 sess->def_taskmgmt_tmo = le16_to_cpu(fw_ddb_entry->def_timeout);
2418 conn->persistent_port = le16_to_cpu(fw_ddb_entry->port);
2420 memset(ip_addr, 0, sizeof(ip_addr));
2421 options = le16_to_cpu(fw_ddb_entry->options);
2422 if (options & DDB_OPT_IPV6_DEVICE) {
2423 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv6", 4);
2425 memset(ip_addr, 0, sizeof(ip_addr));
2426 sprintf(ip_addr, "%pI6", fw_ddb_entry->ip_addr);
2428 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv4", 4);
2429 sprintf(ip_addr, "%pI4", fw_ddb_entry->ip_addr);
2432 iscsi_set_param(cls_conn, ISCSI_PARAM_PERSISTENT_ADDRESS,
2433 (char *)ip_addr, buflen);
2434 iscsi_set_param(cls_conn, ISCSI_PARAM_TARGET_NAME,
2435 (char *)fw_ddb_entry->iscsi_name, buflen);
2436 iscsi_set_param(cls_conn, ISCSI_PARAM_INITIATOR_NAME,
2437 (char *)ha->name_string, buflen);
2440 void qla4xxx_update_session_conn_fwddb_param(struct scsi_qla_host *ha,
2441 struct ddb_entry *ddb_entry)
2443 struct iscsi_cls_session *cls_sess;
2444 struct iscsi_cls_conn *cls_conn;
2446 dma_addr_t fw_ddb_entry_dma;
2447 struct dev_db_entry *fw_ddb_entry;
2449 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
2450 &fw_ddb_entry_dma, GFP_KERNEL);
2451 if (!fw_ddb_entry) {
2452 ql4_printk(KERN_ERR, ha,
2453 "%s: Unable to allocate dma buffer\n", __func__);
2454 goto exit_session_conn_fwddb_param;
2457 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry,
2458 fw_ddb_entry_dma, NULL, NULL, &ddb_state,
2459 NULL, NULL, NULL) == QLA_ERROR) {
2460 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
2461 "get_ddb_entry for fw_ddb_index %d\n",
2462 ha->host_no, __func__,
2463 ddb_entry->fw_ddb_index));
2464 goto exit_session_conn_fwddb_param;
2467 cls_sess = ddb_entry->sess;
2469 cls_conn = ddb_entry->conn;
2472 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn);
2474 exit_session_conn_fwddb_param:
2476 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
2477 fw_ddb_entry, fw_ddb_entry_dma);
2480 void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha,
2481 struct ddb_entry *ddb_entry)
2483 struct iscsi_cls_session *cls_sess;
2484 struct iscsi_cls_conn *cls_conn;
2485 struct iscsi_session *sess;
2486 struct iscsi_conn *conn;
2488 dma_addr_t fw_ddb_entry_dma;
2489 struct dev_db_entry *fw_ddb_entry;
2491 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
2492 &fw_ddb_entry_dma, GFP_KERNEL);
2493 if (!fw_ddb_entry) {
2494 ql4_printk(KERN_ERR, ha,
2495 "%s: Unable to allocate dma buffer\n", __func__);
2496 goto exit_session_conn_param;
2499 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry,
2500 fw_ddb_entry_dma, NULL, NULL, &ddb_state,
2501 NULL, NULL, NULL) == QLA_ERROR) {
2502 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
2503 "get_ddb_entry for fw_ddb_index %d\n",
2504 ha->host_no, __func__,
2505 ddb_entry->fw_ddb_index));
2506 goto exit_session_conn_param;
2509 cls_sess = ddb_entry->sess;
2510 sess = cls_sess->dd_data;
2512 cls_conn = ddb_entry->conn;
2513 conn = cls_conn->dd_data;
2515 /* Update timers after login */
2516 ddb_entry->default_relogin_timeout =
2517 (le16_to_cpu(fw_ddb_entry->def_timeout) > LOGIN_TOV) &&
2518 (le16_to_cpu(fw_ddb_entry->def_timeout) < LOGIN_TOV * 10) ?
2519 le16_to_cpu(fw_ddb_entry->def_timeout) : LOGIN_TOV;
2520 ddb_entry->default_time2wait =
2521 le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
2524 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
2525 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry);
2527 memcpy(sess->initiatorname, ha->name_string,
2528 min(sizeof(ha->name_string), sizeof(sess->initiatorname)));
2530 exit_session_conn_param:
2532 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
2533 fw_ddb_entry, fw_ddb_entry_dma);
2540 static void qla4xxx_start_timer(struct scsi_qla_host *ha, void *func,
2541 unsigned long interval)
2543 DEBUG(printk("scsi: %s: Starting timer thread for adapter %d\n",
2544 __func__, ha->host->host_no));
2545 init_timer(&ha->timer);
2546 ha->timer.expires = jiffies + interval * HZ;
2547 ha->timer.data = (unsigned long)ha;
2548 ha->timer.function = (void (*)(unsigned long))func;
2549 add_timer(&ha->timer);
2550 ha->timer_active = 1;
2553 static void qla4xxx_stop_timer(struct scsi_qla_host *ha)
2555 del_timer_sync(&ha->timer);
2556 ha->timer_active = 0;
2560 * qla4xxx_mark_device_missing - blocks the session
2561 * @cls_session: Pointer to the session to be blocked
2562 * @ddb_entry: Pointer to device database entry
2564 * This routine marks a device missing and close connection.
2566 void qla4xxx_mark_device_missing(struct iscsi_cls_session *cls_session)
2568 iscsi_block_session(cls_session);
2572 * qla4xxx_mark_all_devices_missing - mark all devices as missing.
2573 * @ha: Pointer to host adapter structure.
2575 * This routine marks a device missing and resets the relogin retry count.
2577 void qla4xxx_mark_all_devices_missing(struct scsi_qla_host *ha)
2579 iscsi_host_for_each_session(ha->host, qla4xxx_mark_device_missing);
2582 static struct srb* qla4xxx_get_new_srb(struct scsi_qla_host *ha,
2583 struct ddb_entry *ddb_entry,
2584 struct scsi_cmnd *cmd)
2588 srb = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
2592 kref_init(&srb->srb_ref);
2594 srb->ddb = ddb_entry;
2597 CMD_SP(cmd) = (void *)srb;
2602 static void qla4xxx_srb_free_dma(struct scsi_qla_host *ha, struct srb *srb)
2604 struct scsi_cmnd *cmd = srb->cmd;
2606 if (srb->flags & SRB_DMA_VALID) {
2607 scsi_dma_unmap(cmd);
2608 srb->flags &= ~SRB_DMA_VALID;
2613 void qla4xxx_srb_compl(struct kref *ref)
2615 struct srb *srb = container_of(ref, struct srb, srb_ref);
2616 struct scsi_cmnd *cmd = srb->cmd;
2617 struct scsi_qla_host *ha = srb->ha;
2619 qla4xxx_srb_free_dma(ha, srb);
2621 mempool_free(srb, ha->srb_mempool);
2623 cmd->scsi_done(cmd);
2627 * qla4xxx_queuecommand - scsi layer issues scsi command to driver.
2629 * @cmd: Pointer to Linux's SCSI command structure
2632 * This routine is invoked by Linux to send a SCSI command to the driver.
2633 * The mid-level driver tries to ensure that queuecommand never gets
2634 * invoked concurrently with itself or the interrupt handler (although
2635 * the interrupt handler may call this routine as part of request-
2636 * completion handling). Unfortunely, it sometimes calls the scheduler
2637 * in interrupt context which is a big NO! NO!.
2639 static int qla4xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
2641 struct scsi_qla_host *ha = to_qla_host(host);
2642 struct ddb_entry *ddb_entry = cmd->device->hostdata;
2643 struct iscsi_cls_session *sess = ddb_entry->sess;
2647 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
2648 if (test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags))
2649 cmd->result = DID_NO_CONNECT << 16;
2651 cmd->result = DID_REQUEUE << 16;
2652 goto qc_fail_command;
2656 cmd->result = DID_IMM_RETRY << 16;
2657 goto qc_fail_command;
2660 rval = iscsi_session_chkready(sess);
2663 goto qc_fail_command;
2666 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
2667 test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) ||
2668 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
2669 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) ||
2670 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) ||
2671 !test_bit(AF_ONLINE, &ha->flags) ||
2672 !test_bit(AF_LINK_UP, &ha->flags) ||
2673 test_bit(AF_LOOPBACK, &ha->flags) ||
2674 test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags) ||
2675 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags) ||
2676 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))
2679 srb = qla4xxx_get_new_srb(ha, ddb_entry, cmd);
2683 rval = qla4xxx_send_command_to_isp(ha, srb);
2684 if (rval != QLA_SUCCESS)
2685 goto qc_host_busy_free_sp;
2689 qc_host_busy_free_sp:
2690 qla4xxx_srb_free_dma(ha, srb);
2691 mempool_free(srb, ha->srb_mempool);
2694 return SCSI_MLQUEUE_HOST_BUSY;
2697 cmd->scsi_done(cmd);
2703 * qla4xxx_mem_free - frees memory allocated to adapter
2704 * @ha: Pointer to host adapter structure.
2706 * Frees memory previously allocated by qla4xxx_mem_alloc
2708 static void qla4xxx_mem_free(struct scsi_qla_host *ha)
2711 dma_free_coherent(&ha->pdev->dev, ha->queues_len, ha->queues,
2720 ha->request_ring = NULL;
2721 ha->request_dma = 0;
2722 ha->response_ring = NULL;
2723 ha->response_dma = 0;
2724 ha->shadow_regs = NULL;
2725 ha->shadow_regs_dma = 0;
2727 ha->fw_dump_size = 0;
2729 /* Free srb pool. */
2730 if (ha->srb_mempool)
2731 mempool_destroy(ha->srb_mempool);
2733 ha->srb_mempool = NULL;
2735 if (ha->chap_dma_pool)
2736 dma_pool_destroy(ha->chap_dma_pool);
2739 vfree(ha->chap_list);
2740 ha->chap_list = NULL;
2742 if (ha->fw_ddb_dma_pool)
2743 dma_pool_destroy(ha->fw_ddb_dma_pool);
2745 /* release io space registers */
2746 if (is_qla8022(ha)) {
2749 (struct device_reg_82xx __iomem *)ha->nx_pcibase);
2750 } else if (is_qla8032(ha) || is_qla8042(ha)) {
2753 (struct device_reg_83xx __iomem *)ha->nx_pcibase);
2754 } else if (ha->reg) {
2758 if (ha->reset_tmplt.buff)
2759 vfree(ha->reset_tmplt.buff);
2761 pci_release_regions(ha->pdev);
2765 * qla4xxx_mem_alloc - allocates memory for use by adapter.
2766 * @ha: Pointer to host adapter structure
2768 * Allocates DMA memory for request and response queues. Also allocates memory
2771 static int qla4xxx_mem_alloc(struct scsi_qla_host *ha)
2773 unsigned long align;
2775 /* Allocate contiguous block of DMA memory for queues. */
2776 ha->queues_len = ((REQUEST_QUEUE_DEPTH * QUEUE_SIZE) +
2777 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE) +
2778 sizeof(struct shadow_regs) +
2780 (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
2781 ha->queues = dma_alloc_coherent(&ha->pdev->dev, ha->queues_len,
2782 &ha->queues_dma, GFP_KERNEL);
2783 if (ha->queues == NULL) {
2784 ql4_printk(KERN_WARNING, ha,
2785 "Memory Allocation failed - queues.\n");
2787 goto mem_alloc_error_exit;
2789 memset(ha->queues, 0, ha->queues_len);
2792 * As per RISC alignment requirements -- the bus-address must be a
2793 * multiple of the request-ring size (in bytes).
2796 if ((unsigned long)ha->queues_dma & (MEM_ALIGN_VALUE - 1))
2797 align = MEM_ALIGN_VALUE - ((unsigned long)ha->queues_dma &
2798 (MEM_ALIGN_VALUE - 1));
2800 /* Update request and response queue pointers. */
2801 ha->request_dma = ha->queues_dma + align;
2802 ha->request_ring = (struct queue_entry *) (ha->queues + align);
2803 ha->response_dma = ha->queues_dma + align +
2804 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE);
2805 ha->response_ring = (struct queue_entry *) (ha->queues + align +
2806 (REQUEST_QUEUE_DEPTH *
2808 ha->shadow_regs_dma = ha->queues_dma + align +
2809 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE) +
2810 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE);
2811 ha->shadow_regs = (struct shadow_regs *) (ha->queues + align +
2812 (REQUEST_QUEUE_DEPTH *
2814 (RESPONSE_QUEUE_DEPTH *
2817 /* Allocate memory for srb pool. */
2818 ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab,
2819 mempool_free_slab, srb_cachep);
2820 if (ha->srb_mempool == NULL) {
2821 ql4_printk(KERN_WARNING, ha,
2822 "Memory Allocation failed - SRB Pool.\n");
2824 goto mem_alloc_error_exit;
2827 ha->chap_dma_pool = dma_pool_create("ql4_chap", &ha->pdev->dev,
2828 CHAP_DMA_BLOCK_SIZE, 8, 0);
2830 if (ha->chap_dma_pool == NULL) {
2831 ql4_printk(KERN_WARNING, ha,
2832 "%s: chap_dma_pool allocation failed..\n", __func__);
2833 goto mem_alloc_error_exit;
2836 ha->fw_ddb_dma_pool = dma_pool_create("ql4_fw_ddb", &ha->pdev->dev,
2837 DDB_DMA_BLOCK_SIZE, 8, 0);
2839 if (ha->fw_ddb_dma_pool == NULL) {
2840 ql4_printk(KERN_WARNING, ha,
2841 "%s: fw_ddb_dma_pool allocation failed..\n",
2843 goto mem_alloc_error_exit;
2848 mem_alloc_error_exit:
2849 qla4xxx_mem_free(ha);
2854 * qla4_8xxx_check_temp - Check the ISP82XX temperature.
2855 * @ha: adapter block pointer.
2857 * Note: The caller should not hold the idc lock.
2859 static int qla4_8xxx_check_temp(struct scsi_qla_host *ha)
2861 uint32_t temp, temp_state, temp_val;
2862 int status = QLA_SUCCESS;
2864 temp = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_TEMP_STATE);
2866 temp_state = qla82xx_get_temp_state(temp);
2867 temp_val = qla82xx_get_temp_val(temp);
2869 if (temp_state == QLA82XX_TEMP_PANIC) {
2870 ql4_printk(KERN_WARNING, ha, "Device temperature %d degrees C"
2871 " exceeds maximum allowed. Hardware has been shut"
2872 " down.\n", temp_val);
2874 } else if (temp_state == QLA82XX_TEMP_WARN) {
2875 if (ha->temperature == QLA82XX_TEMP_NORMAL)
2876 ql4_printk(KERN_WARNING, ha, "Device temperature %d"
2877 " degrees C exceeds operating range."
2878 " Immediate action needed.\n", temp_val);
2880 if (ha->temperature == QLA82XX_TEMP_WARN)
2881 ql4_printk(KERN_INFO, ha, "Device temperature is"
2882 " now %d degrees C in normal range.\n",
2885 ha->temperature = temp_state;
2890 * qla4_8xxx_check_fw_alive - Check firmware health
2891 * @ha: Pointer to host adapter structure.
2893 * Context: Interrupt
2895 static int qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha)
2897 uint32_t fw_heartbeat_counter;
2898 int status = QLA_SUCCESS;
2900 fw_heartbeat_counter = qla4_8xxx_rd_direct(ha,
2901 QLA8XXX_PEG_ALIVE_COUNTER);
2902 /* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */
2903 if (fw_heartbeat_counter == 0xffffffff) {
2904 DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Device in frozen "
2905 "state, QLA82XX_PEG_ALIVE_COUNTER is 0xffffffff\n",
2906 ha->host_no, __func__));
2910 if (ha->fw_heartbeat_counter == fw_heartbeat_counter) {
2911 ha->seconds_since_last_heartbeat++;
2912 /* FW not alive after 2 seconds */
2913 if (ha->seconds_since_last_heartbeat == 2) {
2914 ha->seconds_since_last_heartbeat = 0;
2915 qla4_8xxx_dump_peg_reg(ha);
2919 ha->seconds_since_last_heartbeat = 0;
2921 ha->fw_heartbeat_counter = fw_heartbeat_counter;
2925 static void qla4_8xxx_process_fw_error(struct scsi_qla_host *ha)
2927 uint32_t halt_status;
2928 int halt_status_unrecoverable = 0;
2930 halt_status = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_HALT_STATUS1);
2932 if (is_qla8022(ha)) {
2933 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
2935 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
2936 CRB_NIU_XG_PAUSE_CTL_P0 |
2937 CRB_NIU_XG_PAUSE_CTL_P1);
2939 if (QLA82XX_FWERROR_CODE(halt_status) == 0x67)
2940 ql4_printk(KERN_ERR, ha, "%s: Firmware aborted with error code 0x00006700. Device is being reset\n",
2942 if (halt_status & HALT_STATUS_UNRECOVERABLE)
2943 halt_status_unrecoverable = 1;
2944 } else if (is_qla8032(ha) || is_qla8042(ha)) {
2945 if (halt_status & QLA83XX_HALT_STATUS_FW_RESET)
2946 ql4_printk(KERN_ERR, ha, "%s: Firmware error detected device is being reset\n",
2948 else if (halt_status & QLA83XX_HALT_STATUS_UNRECOVERABLE)
2949 halt_status_unrecoverable = 1;
2953 * Since we cannot change dev_state in interrupt context,
2954 * set appropriate DPC flag then wakeup DPC
2956 if (halt_status_unrecoverable) {
2957 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags);
2959 ql4_printk(KERN_INFO, ha, "%s: detect abort needed!\n",
2961 set_bit(DPC_RESET_HA, &ha->dpc_flags);
2963 qla4xxx_mailbox_premature_completion(ha);
2964 qla4xxx_wake_dpc(ha);
2968 * qla4_8xxx_watchdog - Poll dev state
2969 * @ha: Pointer to host adapter structure.
2971 * Context: Interrupt
2973 void qla4_8xxx_watchdog(struct scsi_qla_host *ha)
2978 /* don't poll if reset is going on */
2979 if (!(test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) ||
2980 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
2981 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags))) {
2982 dev_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE);
2984 if (qla4_8xxx_check_temp(ha)) {
2985 if (is_qla8022(ha)) {
2986 ql4_printk(KERN_INFO, ha, "disabling pause transmit on port 0 & 1.\n");
2987 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
2988 CRB_NIU_XG_PAUSE_CTL_P0 |
2989 CRB_NIU_XG_PAUSE_CTL_P1);
2991 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags);
2992 qla4xxx_wake_dpc(ha);
2993 } else if (dev_state == QLA8XXX_DEV_NEED_RESET &&
2994 !test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
2996 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED RESET!\n",
2999 if (is_qla8032(ha) || is_qla8042(ha)) {
3000 idc_ctrl = qla4_83xx_rd_reg(ha,
3001 QLA83XX_IDC_DRV_CTRL);
3002 if (!(idc_ctrl & GRACEFUL_RESET_BIT1)) {
3003 ql4_printk(KERN_INFO, ha, "%s: Graceful reset bit is not set\n",
3005 qla4xxx_mailbox_premature_completion(
3010 if ((is_qla8032(ha) || is_qla8042(ha)) ||
3011 (is_qla8022(ha) && !ql4xdontresethba)) {
3012 set_bit(DPC_RESET_HA, &ha->dpc_flags);
3013 qla4xxx_wake_dpc(ha);
3015 } else if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT &&
3016 !test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) {
3017 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED QUIES!\n",
3019 set_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags);
3020 qla4xxx_wake_dpc(ha);
3022 /* Check firmware health */
3023 if (qla4_8xxx_check_fw_alive(ha))
3024 qla4_8xxx_process_fw_error(ha);
3029 static void qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)
3031 struct iscsi_session *sess;
3032 struct ddb_entry *ddb_entry;
3033 struct scsi_qla_host *ha;
3035 sess = cls_sess->dd_data;
3036 ddb_entry = sess->dd_data;
3039 if (!(ddb_entry->ddb_type == FLASH_DDB))
3042 if (adapter_up(ha) && !test_bit(DF_RELOGIN, &ddb_entry->flags) &&
3043 !iscsi_is_session_online(cls_sess)) {
3044 if (atomic_read(&ddb_entry->retry_relogin_timer) !=
3046 if (atomic_read(&ddb_entry->retry_relogin_timer) ==
3048 atomic_set(&ddb_entry->retry_relogin_timer,
3050 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
3051 set_bit(DF_RELOGIN, &ddb_entry->flags);
3052 DEBUG2(ql4_printk(KERN_INFO, ha,
3053 "%s: index [%d] login device\n",
3054 __func__, ddb_entry->fw_ddb_index));
3056 atomic_dec(&ddb_entry->retry_relogin_timer);
3060 /* Wait for relogin to timeout */
3061 if (atomic_read(&ddb_entry->relogin_timer) &&
3062 (atomic_dec_and_test(&ddb_entry->relogin_timer) != 0)) {
3064 * If the relogin times out and the device is
3065 * still NOT ONLINE then try and relogin again.
3067 if (!iscsi_is_session_online(cls_sess)) {
3068 /* Reset retry relogin timer */
3069 atomic_inc(&ddb_entry->relogin_retry_count);
3070 DEBUG2(ql4_printk(KERN_INFO, ha,
3071 "%s: index[%d] relogin timed out-retrying"
3072 " relogin (%d), retry (%d)\n", __func__,
3073 ddb_entry->fw_ddb_index,
3074 atomic_read(&ddb_entry->relogin_retry_count),
3075 ddb_entry->default_time2wait + 4));
3076 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
3077 atomic_set(&ddb_entry->retry_relogin_timer,
3078 ddb_entry->default_time2wait + 4);
3084 * qla4xxx_timer - checks every second for work to do.
3085 * @ha: Pointer to host adapter structure.
3087 static void qla4xxx_timer(struct scsi_qla_host *ha)
3092 iscsi_host_for_each_session(ha->host, qla4xxx_check_relogin_flash_ddb);
3094 /* If we are in the middle of AER/EEH processing
3095 * skip any processing and reschedule the timer
3097 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
3098 mod_timer(&ha->timer, jiffies + HZ);
3102 /* Hardware read to trigger an EEH error during mailbox waits. */
3103 if (!pci_channel_offline(ha->pdev))
3104 pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
3107 qla4_8xxx_watchdog(ha);
3109 if (is_qla40XX(ha)) {
3110 /* Check for heartbeat interval. */
3111 if (ha->firmware_options & FWOPT_HEARTBEAT_ENABLE &&
3112 ha->heartbeat_interval != 0) {
3113 ha->seconds_since_last_heartbeat++;
3114 if (ha->seconds_since_last_heartbeat >
3115 ha->heartbeat_interval + 2)
3116 set_bit(DPC_RESET_HA, &ha->dpc_flags);
3120 /* Process any deferred work. */
3121 if (!list_empty(&ha->work_list))
3124 /* Wakeup the dpc routine for this adapter, if needed. */
3126 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
3127 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags) ||
3128 test_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags) ||
3129 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) ||
3130 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
3131 test_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags) ||
3132 test_bit(DPC_LINK_CHANGED, &ha->dpc_flags) ||
3133 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) ||
3134 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) ||
3135 test_bit(DPC_AEN, &ha->dpc_flags)) {
3136 DEBUG2(printk("scsi%ld: %s: scheduling dpc routine"
3137 " - dpc flags = 0x%lx\n",
3138 ha->host_no, __func__, ha->dpc_flags));
3139 qla4xxx_wake_dpc(ha);
3142 /* Reschedule timer thread to call us back in one second */
3143 mod_timer(&ha->timer, jiffies + HZ);
3145 DEBUG2(ha->seconds_since_last_intr++);
3149 * qla4xxx_cmd_wait - waits for all outstanding commands to complete
3150 * @ha: Pointer to host adapter structure.
3152 * This routine stalls the driver until all outstanding commands are returned.
3153 * Caller must release the Hardware Lock prior to calling this routine.
3155 static int qla4xxx_cmd_wait(struct scsi_qla_host *ha)
3158 unsigned long flags;
3159 struct scsi_cmnd *cmd;
3161 unsigned long wtime = jiffies + (WAIT_CMD_TOV * HZ);
3163 DEBUG2(ql4_printk(KERN_INFO, ha, "Wait up to %d seconds for cmds to "
3164 "complete\n", WAIT_CMD_TOV));
3166 while (!time_after_eq(jiffies, wtime)) {
3167 spin_lock_irqsave(&ha->hardware_lock, flags);
3168 /* Find a command that hasn't completed. */
3169 for (index = 0; index < ha->host->can_queue; index++) {
3170 cmd = scsi_host_find_tag(ha->host, index);
3172 * We cannot just check if the index is valid,
3173 * becase if we are run from the scsi eh, then
3174 * the scsi/block layer is going to prevent
3175 * the tag from being released.
3177 if (cmd != NULL && CMD_SP(cmd))
3180 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3182 /* If No Commands are pending, wait is complete */
3183 if (index == ha->host->can_queue)
3188 /* If we timed out on waiting for commands to come back
3193 int qla4xxx_hw_reset(struct scsi_qla_host *ha)
3195 uint32_t ctrl_status;
3196 unsigned long flags = 0;
3198 DEBUG2(printk(KERN_ERR "scsi%ld: %s\n", ha->host_no, __func__));
3200 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS)
3203 spin_lock_irqsave(&ha->hardware_lock, flags);
3206 * If the SCSI Reset Interrupt bit is set, clear it.
3207 * Otherwise, the Soft Reset won't work.
3209 ctrl_status = readw(&ha->reg->ctrl_status);
3210 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0)
3211 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status);
3213 /* Issue Soft Reset */
3214 writel(set_rmask(CSR_SOFT_RESET), &ha->reg->ctrl_status);
3215 readl(&ha->reg->ctrl_status);
3217 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3222 * qla4xxx_soft_reset - performs soft reset.
3223 * @ha: Pointer to host adapter structure.
3225 int qla4xxx_soft_reset(struct scsi_qla_host *ha)
3227 uint32_t max_wait_time;
3228 unsigned long flags = 0;
3230 uint32_t ctrl_status;
3232 status = qla4xxx_hw_reset(ha);
3233 if (status != QLA_SUCCESS)
3237 /* Wait until the Network Reset Intr bit is cleared */
3238 max_wait_time = RESET_INTR_TOV;
3240 spin_lock_irqsave(&ha->hardware_lock, flags);
3241 ctrl_status = readw(&ha->reg->ctrl_status);
3242 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3244 if ((ctrl_status & CSR_NET_RESET_INTR) == 0)
3248 } while ((--max_wait_time));
3250 if ((ctrl_status & CSR_NET_RESET_INTR) != 0) {
3251 DEBUG2(printk(KERN_WARNING
3252 "scsi%ld: Network Reset Intr not cleared by "
3253 "Network function, clearing it now!\n",
3255 spin_lock_irqsave(&ha->hardware_lock, flags);
3256 writel(set_rmask(CSR_NET_RESET_INTR), &ha->reg->ctrl_status);
3257 readl(&ha->reg->ctrl_status);
3258 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3261 /* Wait until the firmware tells us the Soft Reset is done */
3262 max_wait_time = SOFT_RESET_TOV;
3264 spin_lock_irqsave(&ha->hardware_lock, flags);
3265 ctrl_status = readw(&ha->reg->ctrl_status);
3266 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3268 if ((ctrl_status & CSR_SOFT_RESET) == 0) {
3269 status = QLA_SUCCESS;
3274 } while ((--max_wait_time));
3277 * Also, make sure that the SCSI Reset Interrupt bit has been cleared
3278 * after the soft reset has taken place.
3280 spin_lock_irqsave(&ha->hardware_lock, flags);
3281 ctrl_status = readw(&ha->reg->ctrl_status);
3282 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) {
3283 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status);
3284 readl(&ha->reg->ctrl_status);
3286 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3288 /* If soft reset fails then most probably the bios on other
3289 * function is also enabled.
3290 * Since the initialization is sequential the other fn
3291 * wont be able to acknowledge the soft reset.
3292 * Issue a force soft reset to workaround this scenario.
3294 if (max_wait_time == 0) {
3295 /* Issue Force Soft Reset */
3296 spin_lock_irqsave(&ha->hardware_lock, flags);
3297 writel(set_rmask(CSR_FORCE_SOFT_RESET), &ha->reg->ctrl_status);
3298 readl(&ha->reg->ctrl_status);
3299 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3300 /* Wait until the firmware tells us the Soft Reset is done */
3301 max_wait_time = SOFT_RESET_TOV;
3303 spin_lock_irqsave(&ha->hardware_lock, flags);
3304 ctrl_status = readw(&ha->reg->ctrl_status);
3305 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3307 if ((ctrl_status & CSR_FORCE_SOFT_RESET) == 0) {
3308 status = QLA_SUCCESS;
3313 } while ((--max_wait_time));
3320 * qla4xxx_abort_active_cmds - returns all outstanding i/o requests to O.S.
3321 * @ha: Pointer to host adapter structure.
3322 * @res: returned scsi status
3324 * This routine is called just prior to a HARD RESET to return all
3325 * outstanding commands back to the Operating System.
3326 * Caller should make sure that the following locks are released
3327 * before this calling routine: Hardware lock, and io_request_lock.
3329 static void qla4xxx_abort_active_cmds(struct scsi_qla_host *ha, int res)
3333 unsigned long flags;
3335 spin_lock_irqsave(&ha->hardware_lock, flags);
3336 for (i = 0; i < ha->host->can_queue; i++) {
3337 srb = qla4xxx_del_from_active_array(ha, i);
3339 srb->cmd->result = res;
3340 kref_put(&srb->srb_ref, qla4xxx_srb_compl);
3343 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3346 void qla4xxx_dead_adapter_cleanup(struct scsi_qla_host *ha)
3348 clear_bit(AF_ONLINE, &ha->flags);
3350 /* Disable the board */
3351 ql4_printk(KERN_INFO, ha, "Disabling the board\n");
3353 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
3354 qla4xxx_mark_all_devices_missing(ha);
3355 clear_bit(AF_INIT_DONE, &ha->flags);
3358 static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session)
3360 struct iscsi_session *sess;
3361 struct ddb_entry *ddb_entry;
3363 sess = cls_session->dd_data;
3364 ddb_entry = sess->dd_data;
3365 ddb_entry->fw_ddb_device_state = DDB_DS_SESSION_FAILED;
3367 if (ddb_entry->ddb_type == FLASH_DDB)
3368 iscsi_block_session(ddb_entry->sess);
3370 iscsi_session_failure(cls_session->dd_data,
3371 ISCSI_ERR_CONN_FAILED);
3375 * qla4xxx_recover_adapter - recovers adapter after a fatal error
3376 * @ha: Pointer to host adapter structure.
3378 static int qla4xxx_recover_adapter(struct scsi_qla_host *ha)
3380 int status = QLA_ERROR;
3381 uint8_t reset_chip = 0;
3385 /* Stall incoming I/O until we are done */
3386 scsi_block_requests(ha->host);
3387 clear_bit(AF_ONLINE, &ha->flags);
3388 clear_bit(AF_LINK_UP, &ha->flags);
3390 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: adapter OFFLINE\n", __func__));
3392 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
3394 if ((is_qla8032(ha) || is_qla8042(ha)) &&
3395 !test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) {
3396 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
3398 /* disable pause frame for ISP83xx */
3399 qla4_83xx_disable_pause(ha);
3402 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session);
3404 if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
3407 /* For the DPC_RESET_HA_INTR case (ISP-4xxx specific)
3408 * do not reset adapter, jump to initialize_adapter */
3409 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
3410 status = QLA_SUCCESS;
3411 goto recover_ha_init_adapter;
3414 /* For the ISP-8xxx adapter, issue a stop_firmware if invoked
3415 * from eh_host_reset or ioctl module */
3416 if (is_qla80XX(ha) && !reset_chip &&
3417 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) {
3419 DEBUG2(ql4_printk(KERN_INFO, ha,
3420 "scsi%ld: %s - Performing stop_firmware...\n",
3421 ha->host_no, __func__));
3422 status = ha->isp_ops->reset_firmware(ha);
3423 if (status == QLA_SUCCESS) {
3424 if (!test_bit(AF_FW_RECOVERY, &ha->flags))
3425 qla4xxx_cmd_wait(ha);
3427 ha->isp_ops->disable_intrs(ha);
3428 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
3429 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
3431 /* If the stop_firmware fails then
3432 * reset the entire chip */
3434 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
3435 set_bit(DPC_RESET_HA, &ha->dpc_flags);
3439 /* Issue full chip reset if recovering from a catastrophic error,
3440 * or if stop_firmware fails for ISP-8xxx.
3441 * This is the default case for ISP-4xxx */
3442 if (is_qla40XX(ha) || reset_chip) {
3446 /* Check if 8XXX firmware is alive or not
3447 * We may have arrived here from NEED_RESET
3449 if (test_bit(AF_FW_RECOVERY, &ha->flags))
3452 wait = jiffies + (FW_ALIVE_WAIT_TOV * HZ);
3453 while (time_before(jiffies, wait)) {
3454 if (qla4_8xxx_check_fw_alive(ha)) {
3455 qla4xxx_mailbox_premature_completion(ha);
3459 set_current_state(TASK_UNINTERRUPTIBLE);
3460 schedule_timeout(HZ);
3463 if (!test_bit(AF_FW_RECOVERY, &ha->flags))
3464 qla4xxx_cmd_wait(ha);
3466 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
3467 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
3468 DEBUG2(ql4_printk(KERN_INFO, ha,
3469 "scsi%ld: %s - Performing chip reset..\n",
3470 ha->host_no, __func__));
3471 status = ha->isp_ops->reset_chip(ha);
3474 /* Flush any pending ddb changed AENs */
3475 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
3477 recover_ha_init_adapter:
3478 /* Upon successful firmware/chip reset, re-initialize the adapter */
3479 if (status == QLA_SUCCESS) {
3480 /* For ISP-4xxx, force function 1 to always initialize
3481 * before function 3 to prevent both funcions from
3482 * stepping on top of the other */
3483 if (is_qla40XX(ha) && (ha->mac_index == 3))
3486 /* NOTE: AF_ONLINE flag set upon successful completion of
3487 * qla4xxx_initialize_adapter */
3488 status = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
3491 /* Retry failed adapter initialization, if necessary
3492 * Do not retry initialize_adapter for RESET_HA_INTR (ISP-4xxx specific)
3493 * case to prevent ping-pong resets between functions */
3494 if (!test_bit(AF_ONLINE, &ha->flags) &&
3495 !test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
3496 /* Adapter initialization failed, see if we can retry
3498 * Since we don't want to block the DPC for too long
3499 * with multiple resets in the same thread,
3500 * utilize DPC to retry */
3501 if (is_qla80XX(ha)) {
3502 ha->isp_ops->idc_lock(ha);
3503 dev_state = qla4_8xxx_rd_direct(ha,
3504 QLA8XXX_CRB_DEV_STATE);
3505 ha->isp_ops->idc_unlock(ha);
3506 if (dev_state == QLA8XXX_DEV_FAILED) {
3507 ql4_printk(KERN_INFO, ha, "%s: don't retry "
3508 "recover adapter. H/W is in Failed "
3509 "state\n", __func__);
3510 qla4xxx_dead_adapter_cleanup(ha);
3511 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
3512 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
3513 clear_bit(DPC_RESET_HA_FW_CONTEXT,
3521 if (!test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags)) {
3522 ha->retry_reset_ha_cnt = MAX_RESET_HA_RETRIES;
3523 DEBUG2(printk("scsi%ld: recover adapter - retrying "
3524 "(%d) more times\n", ha->host_no,
3525 ha->retry_reset_ha_cnt));
3526 set_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
3529 if (ha->retry_reset_ha_cnt > 0) {
3530 /* Schedule another Reset HA--DPC will retry */
3531 ha->retry_reset_ha_cnt--;
3532 DEBUG2(printk("scsi%ld: recover adapter - "
3533 "retry remaining %d\n",
3535 ha->retry_reset_ha_cnt));
3539 if (ha->retry_reset_ha_cnt == 0) {
3540 /* Recover adapter retries have been exhausted.
3542 DEBUG2(printk("scsi%ld: recover adapter "
3543 "failed - board disabled\n",
3545 qla4xxx_dead_adapter_cleanup(ha);
3546 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
3547 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
3548 clear_bit(DPC_RESET_HA_FW_CONTEXT,
3554 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
3555 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
3556 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
3560 ha->adapter_error_count++;
3562 if (test_bit(AF_ONLINE, &ha->flags))
3563 ha->isp_ops->enable_intrs(ha);
3565 scsi_unblock_requests(ha->host);
3567 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
3568 DEBUG2(printk("scsi%ld: recover adapter: %s\n", ha->host_no,
3569 status == QLA_ERROR ? "FAILED" : "SUCCEEDED"));
3574 static void qla4xxx_relogin_devices(struct iscsi_cls_session *cls_session)
3576 struct iscsi_session *sess;
3577 struct ddb_entry *ddb_entry;
3578 struct scsi_qla_host *ha;
3580 sess = cls_session->dd_data;
3581 ddb_entry = sess->dd_data;
3583 if (!iscsi_is_session_online(cls_session)) {
3584 if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) {
3585 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
3586 " unblock session\n", ha->host_no, __func__,
3587 ddb_entry->fw_ddb_index);
3588 iscsi_unblock_session(ddb_entry->sess);
3590 /* Trigger relogin */
3591 if (ddb_entry->ddb_type == FLASH_DDB) {
3592 if (!(test_bit(DF_RELOGIN, &ddb_entry->flags) ||
3593 test_bit(DF_DISABLE_RELOGIN,
3594 &ddb_entry->flags)))
3595 qla4xxx_arm_relogin_timer(ddb_entry);
3597 iscsi_session_failure(cls_session->dd_data,
3598 ISCSI_ERR_CONN_FAILED);
3603 int qla4xxx_unblock_flash_ddb(struct iscsi_cls_session *cls_session)
3605 struct iscsi_session *sess;
3606 struct ddb_entry *ddb_entry;
3607 struct scsi_qla_host *ha;
3609 sess = cls_session->dd_data;
3610 ddb_entry = sess->dd_data;
3612 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
3613 " unblock session\n", ha->host_no, __func__,
3614 ddb_entry->fw_ddb_index);
3616 iscsi_unblock_session(ddb_entry->sess);
3618 /* Start scan target */
3619 if (test_bit(AF_ONLINE, &ha->flags)) {
3620 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
3621 " start scan\n", ha->host_no, __func__,
3622 ddb_entry->fw_ddb_index);
3623 scsi_queue_work(ha->host, &ddb_entry->sess->scan_work);
3628 int qla4xxx_unblock_ddb(struct iscsi_cls_session *cls_session)
3630 struct iscsi_session *sess;
3631 struct ddb_entry *ddb_entry;
3632 struct scsi_qla_host *ha;
3633 int status = QLA_SUCCESS;
3635 sess = cls_session->dd_data;
3636 ddb_entry = sess->dd_data;
3638 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
3639 " unblock user space session\n", ha->host_no, __func__,
3640 ddb_entry->fw_ddb_index);
3642 if (!iscsi_is_session_online(cls_session)) {
3643 iscsi_conn_start(ddb_entry->conn);
3644 iscsi_conn_login_event(ddb_entry->conn,
3645 ISCSI_CONN_STATE_LOGGED_IN);
3647 ql4_printk(KERN_INFO, ha,
3648 "scsi%ld: %s: ddb[%d] session [%d] already logged in\n",
3649 ha->host_no, __func__, ddb_entry->fw_ddb_index,
3657 static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha)
3659 iscsi_host_for_each_session(ha->host, qla4xxx_relogin_devices);
3662 static void qla4xxx_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)
3664 uint16_t relogin_timer;
3665 struct iscsi_session *sess;
3666 struct ddb_entry *ddb_entry;
3667 struct scsi_qla_host *ha;
3669 sess = cls_sess->dd_data;
3670 ddb_entry = sess->dd_data;
3673 relogin_timer = max(ddb_entry->default_relogin_timeout,
3674 (uint16_t)RELOGIN_TOV);
3675 atomic_set(&ddb_entry->relogin_timer, relogin_timer);
3677 DEBUG2(ql4_printk(KERN_INFO, ha,
3678 "scsi%ld: Relogin index [%d]. TOV=%d\n", ha->host_no,
3679 ddb_entry->fw_ddb_index, relogin_timer));
3681 qla4xxx_login_flash_ddb(cls_sess);
3684 static void qla4xxx_dpc_relogin(struct iscsi_cls_session *cls_sess)
3686 struct iscsi_session *sess;
3687 struct ddb_entry *ddb_entry;
3688 struct scsi_qla_host *ha;
3690 sess = cls_sess->dd_data;
3691 ddb_entry = sess->dd_data;
3694 if (!(ddb_entry->ddb_type == FLASH_DDB))
3697 if (test_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags))
3700 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags) &&
3701 !iscsi_is_session_online(cls_sess)) {
3702 DEBUG2(ql4_printk(KERN_INFO, ha,
3703 "relogin issued\n"));
3704 qla4xxx_relogin_flash_ddb(cls_sess);
3708 void qla4xxx_wake_dpc(struct scsi_qla_host *ha)
3711 queue_work(ha->dpc_thread, &ha->dpc_work);
3714 static struct qla4_work_evt *
3715 qla4xxx_alloc_work(struct scsi_qla_host *ha, uint32_t data_size,
3716 enum qla4_work_type type)
3718 struct qla4_work_evt *e;
3719 uint32_t size = sizeof(struct qla4_work_evt) + data_size;
3721 e = kzalloc(size, GFP_ATOMIC);
3725 INIT_LIST_HEAD(&e->list);
3730 static void qla4xxx_post_work(struct scsi_qla_host *ha,
3731 struct qla4_work_evt *e)
3733 unsigned long flags;
3735 spin_lock_irqsave(&ha->work_lock, flags);
3736 list_add_tail(&e->list, &ha->work_list);
3737 spin_unlock_irqrestore(&ha->work_lock, flags);
3738 qla4xxx_wake_dpc(ha);
3741 int qla4xxx_post_aen_work(struct scsi_qla_host *ha,
3742 enum iscsi_host_event_code aen_code,
3743 uint32_t data_size, uint8_t *data)
3745 struct qla4_work_evt *e;
3747 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_AEN);
3751 e->u.aen.code = aen_code;
3752 e->u.aen.data_size = data_size;
3753 memcpy(e->u.aen.data, data, data_size);
3755 qla4xxx_post_work(ha, e);
3760 int qla4xxx_post_ping_evt_work(struct scsi_qla_host *ha,
3761 uint32_t status, uint32_t pid,
3762 uint32_t data_size, uint8_t *data)
3764 struct qla4_work_evt *e;
3766 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_PING_STATUS);
3770 e->u.ping.status = status;
3771 e->u.ping.pid = pid;
3772 e->u.ping.data_size = data_size;
3773 memcpy(e->u.ping.data, data, data_size);
3775 qla4xxx_post_work(ha, e);
3780 static void qla4xxx_do_work(struct scsi_qla_host *ha)
3782 struct qla4_work_evt *e, *tmp;
3783 unsigned long flags;
3786 spin_lock_irqsave(&ha->work_lock, flags);
3787 list_splice_init(&ha->work_list, &work);
3788 spin_unlock_irqrestore(&ha->work_lock, flags);
3790 list_for_each_entry_safe(e, tmp, &work, list) {
3791 list_del_init(&e->list);
3794 case QLA4_EVENT_AEN:
3795 iscsi_post_host_event(ha->host_no,
3796 &qla4xxx_iscsi_transport,
3801 case QLA4_EVENT_PING_STATUS:
3802 iscsi_ping_comp_event(ha->host_no,
3803 &qla4xxx_iscsi_transport,
3806 e->u.ping.data_size,
3810 ql4_printk(KERN_WARNING, ha, "event type: 0x%x not "
3811 "supported", e->type);
3818 * qla4xxx_do_dpc - dpc routine
3819 * @data: in our case pointer to adapter structure
3821 * This routine is a task that is schedule by the interrupt handler
3822 * to perform the background processing for interrupts. We put it
3823 * on a task queue that is consumed whenever the scheduler runs; that's
3824 * so you can do anything (i.e. put the process to sleep etc). In fact,
3825 * the mid-level tries to sleep when it reaches the driver threshold
3826 * "host->can_queue". This can cause a panic if we were in our interrupt code.
3828 static void qla4xxx_do_dpc(struct work_struct *work)
3830 struct scsi_qla_host *ha =
3831 container_of(work, struct scsi_qla_host, dpc_work);
3832 int status = QLA_ERROR;
3834 DEBUG2(printk("scsi%ld: %s: DPC handler waking up."
3835 "flags = 0x%08lx, dpc_flags = 0x%08lx\n",
3836 ha->host_no, __func__, ha->flags, ha->dpc_flags))
3838 /* Initialization not yet finished. Don't do anything yet. */
3839 if (!test_bit(AF_INIT_DONE, &ha->flags))
3842 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
3843 DEBUG2(printk(KERN_INFO "scsi%ld: %s: flags = %lx\n",
3844 ha->host_no, __func__, ha->flags));
3848 /* post events to application */
3849 qla4xxx_do_work(ha);
3851 if (is_qla80XX(ha)) {
3852 if (test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags)) {
3853 if (is_qla8032(ha) || is_qla8042(ha)) {
3854 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
3856 /* disable pause frame for ISP83xx */
3857 qla4_83xx_disable_pause(ha);
3860 ha->isp_ops->idc_lock(ha);
3861 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
3862 QLA8XXX_DEV_FAILED);
3863 ha->isp_ops->idc_unlock(ha);
3864 ql4_printk(KERN_INFO, ha, "HW State: FAILED\n");
3865 qla4_8xxx_device_state_handler(ha);
3868 if (test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags)) {
3869 if (is_qla8042(ha)) {
3870 if (ha->idc_info.info2 &
3871 ENABLE_INTERNAL_LOOPBACK) {
3872 ql4_printk(KERN_INFO, ha, "%s: Disabling ACB\n",
3874 status = qla4_84xx_config_acb(ha,
3875 ACB_CONFIG_DISABLE);
3876 if (status != QLA_SUCCESS) {
3877 ql4_printk(KERN_INFO, ha, "%s: ACB config failed\n",
3882 qla4_83xx_post_idc_ack(ha);
3883 clear_bit(DPC_POST_IDC_ACK, &ha->dpc_flags);
3886 if (is_qla8042(ha) &&
3887 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags)) {
3888 ql4_printk(KERN_INFO, ha, "%s: Restoring ACB\n",
3890 if (qla4_84xx_config_acb(ha, ACB_CONFIG_SET) !=
3892 ql4_printk(KERN_INFO, ha, "%s: ACB config failed ",
3895 clear_bit(DPC_RESTORE_ACB, &ha->dpc_flags);
3898 if (test_and_clear_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) {
3899 qla4_8xxx_need_qsnt_handler(ha);
3903 if (!test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) &&
3904 (test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
3905 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
3906 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))) {
3907 if ((is_qla8022(ha) && ql4xdontresethba) ||
3908 ((is_qla8032(ha) || is_qla8042(ha)) &&
3909 qla4_83xx_idc_dontreset(ha))) {
3910 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n",
3911 ha->host_no, __func__));
3912 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
3913 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags);
3914 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
3915 goto dpc_post_reset_ha;
3917 if (test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) ||
3918 test_bit(DPC_RESET_HA, &ha->dpc_flags))
3919 qla4xxx_recover_adapter(ha);
3921 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
3922 uint8_t wait_time = RESET_INTR_TOV;
3924 while ((readw(&ha->reg->ctrl_status) &
3925 (CSR_SOFT_RESET | CSR_FORCE_SOFT_RESET)) != 0) {
3926 if (--wait_time == 0)
3931 DEBUG2(printk("scsi%ld: %s: SR|FSR "
3932 "bit not cleared-- resetting\n",
3933 ha->host_no, __func__));
3934 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
3935 if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS) {
3936 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
3937 status = qla4xxx_recover_adapter(ha);
3939 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags);
3940 if (status == QLA_SUCCESS)
3941 ha->isp_ops->enable_intrs(ha);
3946 /* ---- process AEN? --- */
3947 if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags))
3948 qla4xxx_process_aen(ha, PROCESS_ALL_AENS);
3950 /* ---- Get DHCP IP Address? --- */
3951 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags))
3952 qla4xxx_get_dhcp_ip_address(ha);
3954 /* ---- relogin device? --- */
3955 if (adapter_up(ha) &&
3956 test_and_clear_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags)) {
3957 iscsi_host_for_each_session(ha->host, qla4xxx_dpc_relogin);
3960 /* ---- link change? --- */
3961 if (!test_bit(AF_LOOPBACK, &ha->flags) &&
3962 test_and_clear_bit(DPC_LINK_CHANGED, &ha->dpc_flags)) {
3963 if (!test_bit(AF_LINK_UP, &ha->flags)) {
3964 /* ---- link down? --- */
3965 qla4xxx_mark_all_devices_missing(ha);
3967 /* ---- link up? --- *
3968 * F/W will auto login to all devices ONLY ONCE after
3969 * link up during driver initialization and runtime
3970 * fatal error recovery. Therefore, the driver must
3971 * manually relogin to devices when recovering from
3972 * connection failures, logouts, expired KATO, etc. */
3973 if (test_and_clear_bit(AF_BUILD_DDB_LIST, &ha->flags)) {
3974 qla4xxx_build_ddb_list(ha, ha->is_reset);
3975 iscsi_host_for_each_session(ha->host,
3976 qla4xxx_login_flash_ddb);
3978 qla4xxx_relogin_all_devices(ha);
3984 * qla4xxx_free_adapter - release the adapter
3985 * @ha: pointer to adapter structure
3987 static void qla4xxx_free_adapter(struct scsi_qla_host *ha)
3989 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
3991 /* Turn-off interrupts on the card. */
3992 ha->isp_ops->disable_intrs(ha);
3994 if (is_qla40XX(ha)) {
3995 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR),
3996 &ha->reg->ctrl_status);
3997 readl(&ha->reg->ctrl_status);
3998 } else if (is_qla8022(ha)) {
3999 writel(0, &ha->qla4_82xx_reg->host_int);
4000 readl(&ha->qla4_82xx_reg->host_int);
4001 } else if (is_qla8032(ha) || is_qla8042(ha)) {
4002 writel(0, &ha->qla4_83xx_reg->risc_intr);
4003 readl(&ha->qla4_83xx_reg->risc_intr);
4006 /* Remove timer thread, if present */
4007 if (ha->timer_active)
4008 qla4xxx_stop_timer(ha);
4010 /* Kill the kernel thread for this host */
4012 destroy_workqueue(ha->dpc_thread);
4014 /* Kill the kernel thread for this host */
4016 destroy_workqueue(ha->task_wq);
4018 /* Put firmware in known state */
4019 ha->isp_ops->reset_firmware(ha);
4021 if (is_qla80XX(ha)) {
4022 ha->isp_ops->idc_lock(ha);
4023 qla4_8xxx_clear_drv_active(ha);
4024 ha->isp_ops->idc_unlock(ha);
4027 /* Detach interrupts */
4028 qla4xxx_free_irqs(ha);
4030 /* free extra memory */
4031 qla4xxx_mem_free(ha);
4034 int qla4_8xxx_iospace_config(struct scsi_qla_host *ha)
4037 unsigned long mem_base, mem_len, db_base, db_len;
4038 struct pci_dev *pdev = ha->pdev;
4040 status = pci_request_regions(pdev, DRIVER_NAME);
4043 "scsi(%ld) Failed to reserve PIO regions (%s) "
4044 "status=%d\n", ha->host_no, pci_name(pdev), status);
4045 goto iospace_error_exit;
4048 DEBUG2(printk(KERN_INFO "%s: revision-id=%d\n",
4049 __func__, pdev->revision));
4050 ha->revision_id = pdev->revision;
4052 /* remap phys address */
4053 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
4054 mem_len = pci_resource_len(pdev, 0);
4055 DEBUG2(printk(KERN_INFO "%s: ioremap from %lx a size of %lx\n",
4056 __func__, mem_base, mem_len));
4058 /* mapping of pcibase pointer */
4059 ha->nx_pcibase = (unsigned long)ioremap(mem_base, mem_len);
4060 if (!ha->nx_pcibase) {
4062 "cannot remap MMIO (%s), aborting\n", pci_name(pdev));
4063 pci_release_regions(ha->pdev);
4064 goto iospace_error_exit;
4067 /* Mapping of IO base pointer, door bell read and write pointer */
4069 /* mapping of IO base pointer */
4070 if (is_qla8022(ha)) {
4071 ha->qla4_82xx_reg = (struct device_reg_82xx __iomem *)
4072 ((uint8_t *)ha->nx_pcibase + 0xbc000 +
4073 (ha->pdev->devfn << 11));
4074 ha->nx_db_wr_ptr = (ha->pdev->devfn == 4 ? QLA82XX_CAM_RAM_DB1 :
4075 QLA82XX_CAM_RAM_DB2);
4076 } else if (is_qla8032(ha) || is_qla8042(ha)) {
4077 ha->qla4_83xx_reg = (struct device_reg_83xx __iomem *)
4078 ((uint8_t *)ha->nx_pcibase);
4081 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
4082 db_len = pci_resource_len(pdev, 4);
4090 * qla4xxx_iospace_config - maps registers
4091 * @ha: pointer to adapter structure
4093 * This routines maps HBA's registers from the pci address space
4094 * into the kernel virtual address space for memory mapped i/o.
4096 int qla4xxx_iospace_config(struct scsi_qla_host *ha)
4098 unsigned long pio, pio_len, pio_flags;
4099 unsigned long mmio, mmio_len, mmio_flags;
4101 pio = pci_resource_start(ha->pdev, 0);
4102 pio_len = pci_resource_len(ha->pdev, 0);
4103 pio_flags = pci_resource_flags(ha->pdev, 0);
4104 if (pio_flags & IORESOURCE_IO) {
4105 if (pio_len < MIN_IOBASE_LEN) {
4106 ql4_printk(KERN_WARNING, ha,
4107 "Invalid PCI I/O region size\n");
4111 ql4_printk(KERN_WARNING, ha, "region #0 not a PIO resource\n");
4115 /* Use MMIO operations for all accesses. */
4116 mmio = pci_resource_start(ha->pdev, 1);
4117 mmio_len = pci_resource_len(ha->pdev, 1);
4118 mmio_flags = pci_resource_flags(ha->pdev, 1);
4120 if (!(mmio_flags & IORESOURCE_MEM)) {
4121 ql4_printk(KERN_ERR, ha,
4122 "region #0 not an MMIO resource, aborting\n");
4124 goto iospace_error_exit;
4127 if (mmio_len < MIN_IOBASE_LEN) {
4128 ql4_printk(KERN_ERR, ha,
4129 "Invalid PCI mem region size, aborting\n");
4130 goto iospace_error_exit;
4133 if (pci_request_regions(ha->pdev, DRIVER_NAME)) {
4134 ql4_printk(KERN_WARNING, ha,
4135 "Failed to reserve PIO/MMIO regions\n");
4137 goto iospace_error_exit;
4140 ha->pio_address = pio;
4141 ha->pio_length = pio_len;
4142 ha->reg = ioremap(mmio, MIN_IOBASE_LEN);
4144 ql4_printk(KERN_ERR, ha,
4145 "cannot remap MMIO, aborting\n");
4147 goto iospace_error_exit;
4156 static struct isp_operations qla4xxx_isp_ops = {
4157 .iospace_config = qla4xxx_iospace_config,
4158 .pci_config = qla4xxx_pci_config,
4159 .disable_intrs = qla4xxx_disable_intrs,
4160 .enable_intrs = qla4xxx_enable_intrs,
4161 .start_firmware = qla4xxx_start_firmware,
4162 .intr_handler = qla4xxx_intr_handler,
4163 .interrupt_service_routine = qla4xxx_interrupt_service_routine,
4164 .reset_chip = qla4xxx_soft_reset,
4165 .reset_firmware = qla4xxx_hw_reset,
4166 .queue_iocb = qla4xxx_queue_iocb,
4167 .complete_iocb = qla4xxx_complete_iocb,
4168 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out,
4169 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in,
4170 .get_sys_info = qla4xxx_get_sys_info,
4171 .queue_mailbox_command = qla4xxx_queue_mbox_cmd,
4172 .process_mailbox_interrupt = qla4xxx_process_mbox_intr,
4175 static struct isp_operations qla4_82xx_isp_ops = {
4176 .iospace_config = qla4_8xxx_iospace_config,
4177 .pci_config = qla4_8xxx_pci_config,
4178 .disable_intrs = qla4_82xx_disable_intrs,
4179 .enable_intrs = qla4_82xx_enable_intrs,
4180 .start_firmware = qla4_8xxx_load_risc,
4181 .restart_firmware = qla4_82xx_try_start_fw,
4182 .intr_handler = qla4_82xx_intr_handler,
4183 .interrupt_service_routine = qla4_82xx_interrupt_service_routine,
4184 .need_reset = qla4_8xxx_need_reset,
4185 .reset_chip = qla4_82xx_isp_reset,
4186 .reset_firmware = qla4_8xxx_stop_firmware,
4187 .queue_iocb = qla4_82xx_queue_iocb,
4188 .complete_iocb = qla4_82xx_complete_iocb,
4189 .rd_shdw_req_q_out = qla4_82xx_rd_shdw_req_q_out,
4190 .rd_shdw_rsp_q_in = qla4_82xx_rd_shdw_rsp_q_in,
4191 .get_sys_info = qla4_8xxx_get_sys_info,
4192 .rd_reg_direct = qla4_82xx_rd_32,
4193 .wr_reg_direct = qla4_82xx_wr_32,
4194 .rd_reg_indirect = qla4_82xx_md_rd_32,
4195 .wr_reg_indirect = qla4_82xx_md_wr_32,
4196 .idc_lock = qla4_82xx_idc_lock,
4197 .idc_unlock = qla4_82xx_idc_unlock,
4198 .rom_lock_recovery = qla4_82xx_rom_lock_recovery,
4199 .queue_mailbox_command = qla4_82xx_queue_mbox_cmd,
4200 .process_mailbox_interrupt = qla4_82xx_process_mbox_intr,
4203 static struct isp_operations qla4_83xx_isp_ops = {
4204 .iospace_config = qla4_8xxx_iospace_config,
4205 .pci_config = qla4_8xxx_pci_config,
4206 .disable_intrs = qla4_83xx_disable_intrs,
4207 .enable_intrs = qla4_83xx_enable_intrs,
4208 .start_firmware = qla4_8xxx_load_risc,
4209 .restart_firmware = qla4_83xx_start_firmware,
4210 .intr_handler = qla4_83xx_intr_handler,
4211 .interrupt_service_routine = qla4_83xx_interrupt_service_routine,
4212 .need_reset = qla4_8xxx_need_reset,
4213 .reset_chip = qla4_83xx_isp_reset,
4214 .reset_firmware = qla4_8xxx_stop_firmware,
4215 .queue_iocb = qla4_83xx_queue_iocb,
4216 .complete_iocb = qla4_83xx_complete_iocb,
4217 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out,
4218 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in,
4219 .get_sys_info = qla4_8xxx_get_sys_info,
4220 .rd_reg_direct = qla4_83xx_rd_reg,
4221 .wr_reg_direct = qla4_83xx_wr_reg,
4222 .rd_reg_indirect = qla4_83xx_rd_reg_indirect,
4223 .wr_reg_indirect = qla4_83xx_wr_reg_indirect,
4224 .idc_lock = qla4_83xx_drv_lock,
4225 .idc_unlock = qla4_83xx_drv_unlock,
4226 .rom_lock_recovery = qla4_83xx_rom_lock_recovery,
4227 .queue_mailbox_command = qla4_83xx_queue_mbox_cmd,
4228 .process_mailbox_interrupt = qla4_83xx_process_mbox_intr,
4231 uint16_t qla4xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha)
4233 return (uint16_t)le32_to_cpu(ha->shadow_regs->req_q_out);
4236 uint16_t qla4_82xx_rd_shdw_req_q_out(struct scsi_qla_host *ha)
4238 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->req_q_out));
4241 uint16_t qla4xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha)
4243 return (uint16_t)le32_to_cpu(ha->shadow_regs->rsp_q_in);
4246 uint16_t qla4_82xx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha)
4248 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->rsp_q_in));
4251 static ssize_t qla4xxx_show_boot_eth_info(void *data, int type, char *buf)
4253 struct scsi_qla_host *ha = data;
4258 case ISCSI_BOOT_ETH_FLAGS:
4259 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT);
4261 case ISCSI_BOOT_ETH_INDEX:
4262 rc = sprintf(str, "0\n");
4264 case ISCSI_BOOT_ETH_MAC:
4265 rc = sysfs_format_mac(str, ha->my_mac,
4275 static umode_t qla4xxx_eth_get_attr_visibility(void *data, int type)
4280 case ISCSI_BOOT_ETH_FLAGS:
4281 case ISCSI_BOOT_ETH_MAC:
4282 case ISCSI_BOOT_ETH_INDEX:
4292 static ssize_t qla4xxx_show_boot_ini_info(void *data, int type, char *buf)
4294 struct scsi_qla_host *ha = data;
4299 case ISCSI_BOOT_INI_INITIATOR_NAME:
4300 rc = sprintf(str, "%s\n", ha->name_string);
4309 static umode_t qla4xxx_ini_get_attr_visibility(void *data, int type)
4314 case ISCSI_BOOT_INI_INITIATOR_NAME:
4325 qla4xxx_show_boot_tgt_info(struct ql4_boot_session_info *boot_sess, int type,
4328 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0];
4333 case ISCSI_BOOT_TGT_NAME:
4334 rc = sprintf(buf, "%s\n", (char *)&boot_sess->target_name);
4336 case ISCSI_BOOT_TGT_IP_ADDR:
4337 if (boot_sess->conn_list[0].dest_ipaddr.ip_type == 0x1)
4338 rc = sprintf(buf, "%pI4\n",
4339 &boot_conn->dest_ipaddr.ip_address);
4341 rc = sprintf(str, "%pI6\n",
4342 &boot_conn->dest_ipaddr.ip_address);
4344 case ISCSI_BOOT_TGT_PORT:
4345 rc = sprintf(str, "%d\n", boot_conn->dest_port);
4347 case ISCSI_BOOT_TGT_CHAP_NAME:
4348 rc = sprintf(str, "%.*s\n",
4349 boot_conn->chap.target_chap_name_length,
4350 (char *)&boot_conn->chap.target_chap_name);
4352 case ISCSI_BOOT_TGT_CHAP_SECRET:
4353 rc = sprintf(str, "%.*s\n",
4354 boot_conn->chap.target_secret_length,
4355 (char *)&boot_conn->chap.target_secret);
4357 case ISCSI_BOOT_TGT_REV_CHAP_NAME:
4358 rc = sprintf(str, "%.*s\n",
4359 boot_conn->chap.intr_chap_name_length,
4360 (char *)&boot_conn->chap.intr_chap_name);
4362 case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
4363 rc = sprintf(str, "%.*s\n",
4364 boot_conn->chap.intr_secret_length,
4365 (char *)&boot_conn->chap.intr_secret);
4367 case ISCSI_BOOT_TGT_FLAGS:
4368 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT);
4370 case ISCSI_BOOT_TGT_NIC_ASSOC:
4371 rc = sprintf(str, "0\n");
4380 static ssize_t qla4xxx_show_boot_tgt_pri_info(void *data, int type, char *buf)
4382 struct scsi_qla_host *ha = data;
4383 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_pri_sess);
4385 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf);
4388 static ssize_t qla4xxx_show_boot_tgt_sec_info(void *data, int type, char *buf)
4390 struct scsi_qla_host *ha = data;
4391 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_sec_sess);
4393 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf);
4396 static umode_t qla4xxx_tgt_get_attr_visibility(void *data, int type)
4401 case ISCSI_BOOT_TGT_NAME:
4402 case ISCSI_BOOT_TGT_IP_ADDR:
4403 case ISCSI_BOOT_TGT_PORT:
4404 case ISCSI_BOOT_TGT_CHAP_NAME:
4405 case ISCSI_BOOT_TGT_CHAP_SECRET:
4406 case ISCSI_BOOT_TGT_REV_CHAP_NAME:
4407 case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
4408 case ISCSI_BOOT_TGT_NIC_ASSOC:
4409 case ISCSI_BOOT_TGT_FLAGS:
4419 static void qla4xxx_boot_release(void *data)
4421 struct scsi_qla_host *ha = data;
4423 scsi_host_put(ha->host);
4426 static int get_fw_boot_info(struct scsi_qla_host *ha, uint16_t ddb_index[])
4429 uint32_t addr, pri_addr, sec_addr;
4433 uint8_t *buf = NULL;
4434 size_t size = 13 * sizeof(uint8_t);
4435 int ret = QLA_SUCCESS;
4437 func_num = PCI_FUNC(ha->pdev->devfn);
4439 ql4_printk(KERN_INFO, ha, "%s: Get FW boot info for 0x%x func %d\n",
4440 __func__, ha->pdev->device, func_num);
4442 if (is_qla40XX(ha)) {
4443 if (func_num == 1) {
4444 addr = NVRAM_PORT0_BOOT_MODE;
4445 pri_addr = NVRAM_PORT0_BOOT_PRI_TGT;
4446 sec_addr = NVRAM_PORT0_BOOT_SEC_TGT;
4447 } else if (func_num == 3) {
4448 addr = NVRAM_PORT1_BOOT_MODE;
4449 pri_addr = NVRAM_PORT1_BOOT_PRI_TGT;
4450 sec_addr = NVRAM_PORT1_BOOT_SEC_TGT;
4453 goto exit_boot_info;
4456 /* Check Boot Mode */
4457 val = rd_nvram_byte(ha, addr);
4458 if (!(val & 0x07)) {
4459 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Adapter boot "
4460 "options : 0x%x\n", __func__, val));
4462 goto exit_boot_info;
4465 /* get primary valid target index */
4466 val = rd_nvram_byte(ha, pri_addr);
4468 ddb_index[0] = (val & 0x7f);
4470 /* get secondary valid target index */
4471 val = rd_nvram_byte(ha, sec_addr);
4473 ddb_index[1] = (val & 0x7f);
4475 } else if (is_qla80XX(ha)) {
4476 buf = dma_alloc_coherent(&ha->pdev->dev, size,
4477 &buf_dma, GFP_KERNEL);
4479 DEBUG2(ql4_printk(KERN_ERR, ha,
4480 "%s: Unable to allocate dma buffer\n",
4483 goto exit_boot_info;
4486 if (ha->port_num == 0)
4487 offset = BOOT_PARAM_OFFSET_PORT0;
4488 else if (ha->port_num == 1)
4489 offset = BOOT_PARAM_OFFSET_PORT1;
4492 goto exit_boot_info_free;
4494 addr = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_iscsi_param * 4) +
4496 if (qla4xxx_get_flash(ha, buf_dma, addr,
4497 13 * sizeof(uint8_t)) != QLA_SUCCESS) {
4498 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: Get Flash"
4499 " failed\n", ha->host_no, __func__));
4501 goto exit_boot_info_free;
4503 /* Check Boot Mode */
4504 if (!(buf[1] & 0x07)) {
4505 DEBUG2(ql4_printk(KERN_INFO, ha, "Firmware boot options"
4506 " : 0x%x\n", buf[1]));
4508 goto exit_boot_info_free;
4511 /* get primary valid target index */
4513 ddb_index[0] = buf[2] & 0x7f;
4515 /* get secondary valid target index */
4516 if (buf[11] & BIT_7)
4517 ddb_index[1] = buf[11] & 0x7f;
4520 goto exit_boot_info;
4523 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary target ID %d, Secondary"
4524 " target ID %d\n", __func__, ddb_index[0],
4527 exit_boot_info_free:
4528 dma_free_coherent(&ha->pdev->dev, size, buf, buf_dma);
4530 ha->pri_ddb_idx = ddb_index[0];
4531 ha->sec_ddb_idx = ddb_index[1];
4536 * qla4xxx_get_bidi_chap - Get a BIDI CHAP user and password
4537 * @ha: pointer to adapter structure
4538 * @username: CHAP username to be returned
4539 * @password: CHAP password to be returned
4541 * If a boot entry has BIDI CHAP enabled then we need to set the BIDI CHAP
4542 * user and password in the sysfs entry in /sys/firmware/iscsi_boot#/.
4543 * So from the CHAP cache find the first BIDI CHAP entry and set it
4544 * to the boot record in sysfs.
4546 static int qla4xxx_get_bidi_chap(struct scsi_qla_host *ha, char *username,
4549 int i, ret = -EINVAL;
4550 int max_chap_entries = 0;
4551 struct ql4_chap_table *chap_table;
4554 max_chap_entries = (ha->hw.flt_chap_size / 2) /
4555 sizeof(struct ql4_chap_table);
4557 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
4559 if (!ha->chap_list) {
4560 ql4_printk(KERN_ERR, ha, "Do not have CHAP table cache\n");
4564 mutex_lock(&ha->chap_sem);
4565 for (i = 0; i < max_chap_entries; i++) {
4566 chap_table = (struct ql4_chap_table *)ha->chap_list + i;
4567 if (chap_table->cookie !=
4568 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) {
4572 if (chap_table->flags & BIT_7) /* local */
4575 if (!(chap_table->flags & BIT_6)) /* Not BIDI */
4578 strncpy(password, chap_table->secret, QL4_CHAP_MAX_SECRET_LEN);
4579 strncpy(username, chap_table->name, QL4_CHAP_MAX_NAME_LEN);
4583 mutex_unlock(&ha->chap_sem);
4589 static int qla4xxx_get_boot_target(struct scsi_qla_host *ha,
4590 struct ql4_boot_session_info *boot_sess,
4593 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0];
4594 struct dev_db_entry *fw_ddb_entry;
4595 dma_addr_t fw_ddb_entry_dma;
4598 int ret = QLA_SUCCESS;
4600 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
4601 &fw_ddb_entry_dma, GFP_KERNEL);
4602 if (!fw_ddb_entry) {
4603 DEBUG2(ql4_printk(KERN_ERR, ha,
4604 "%s: Unable to allocate dma buffer.\n",
4610 if (qla4xxx_bootdb_by_index(ha, fw_ddb_entry,
4611 fw_ddb_entry_dma, ddb_index)) {
4612 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: No Flash DDB found at "
4613 "index [%d]\n", __func__, ddb_index));
4615 goto exit_boot_target;
4618 /* Update target name and IP from DDB */
4619 memcpy(boot_sess->target_name, fw_ddb_entry->iscsi_name,
4620 min(sizeof(boot_sess->target_name),
4621 sizeof(fw_ddb_entry->iscsi_name)));
4623 options = le16_to_cpu(fw_ddb_entry->options);
4624 if (options & DDB_OPT_IPV6_DEVICE) {
4625 memcpy(&boot_conn->dest_ipaddr.ip_address,
4626 &fw_ddb_entry->ip_addr[0], IPv6_ADDR_LEN);
4628 boot_conn->dest_ipaddr.ip_type = 0x1;
4629 memcpy(&boot_conn->dest_ipaddr.ip_address,
4630 &fw_ddb_entry->ip_addr[0], IP_ADDR_LEN);
4633 boot_conn->dest_port = le16_to_cpu(fw_ddb_entry->port);
4635 /* update chap information */
4636 idx = __le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
4638 if (BIT_7 & le16_to_cpu(fw_ddb_entry->iscsi_options)) {
4640 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting chap\n"));
4642 ret = qla4xxx_get_chap(ha, (char *)&boot_conn->chap.
4644 (char *)&boot_conn->chap.target_secret,
4647 ql4_printk(KERN_ERR, ha, "Failed to set chap\n");
4649 goto exit_boot_target;
4652 boot_conn->chap.target_chap_name_length = QL4_CHAP_MAX_NAME_LEN;
4653 boot_conn->chap.target_secret_length = QL4_CHAP_MAX_SECRET_LEN;
4656 if (BIT_4 & le16_to_cpu(fw_ddb_entry->iscsi_options)) {
4658 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting BIDI chap\n"));
4660 ret = qla4xxx_get_bidi_chap(ha,
4661 (char *)&boot_conn->chap.intr_chap_name,
4662 (char *)&boot_conn->chap.intr_secret);
4665 ql4_printk(KERN_ERR, ha, "Failed to set BIDI chap\n");
4667 goto exit_boot_target;
4670 boot_conn->chap.intr_chap_name_length = QL4_CHAP_MAX_NAME_LEN;
4671 boot_conn->chap.intr_secret_length = QL4_CHAP_MAX_SECRET_LEN;
4675 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
4676 fw_ddb_entry, fw_ddb_entry_dma);
4680 static int qla4xxx_get_boot_info(struct scsi_qla_host *ha)
4682 uint16_t ddb_index[2];
4683 int ret = QLA_ERROR;
4686 memset(ddb_index, 0, sizeof(ddb_index));
4687 ddb_index[0] = 0xffff;
4688 ddb_index[1] = 0xffff;
4689 ret = get_fw_boot_info(ha, ddb_index);
4690 if (ret != QLA_SUCCESS) {
4691 DEBUG2(ql4_printk(KERN_INFO, ha,
4692 "%s: No boot target configured.\n", __func__));
4696 if (ql4xdisablesysfsboot)
4699 if (ddb_index[0] == 0xffff)
4702 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_pri_sess),
4704 if (rval != QLA_SUCCESS) {
4705 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary boot target not "
4706 "configured\n", __func__));
4711 if (ddb_index[1] == 0xffff)
4712 goto exit_get_boot_info;
4714 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_sec_sess),
4716 if (rval != QLA_SUCCESS) {
4717 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Secondary boot target not"
4718 " configured\n", __func__));
4726 static int qla4xxx_setup_boot_info(struct scsi_qla_host *ha)
4728 struct iscsi_boot_kobj *boot_kobj;
4730 if (qla4xxx_get_boot_info(ha) != QLA_SUCCESS)
4733 if (ql4xdisablesysfsboot) {
4734 ql4_printk(KERN_INFO, ha,
4735 "%s: syfsboot disabled - driver will trigger login "
4736 "and publish session for discovery .\n", __func__);
4741 ha->boot_kset = iscsi_boot_create_host_kset(ha->host->host_no);
4745 if (!scsi_host_get(ha->host))
4747 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 0, ha,
4748 qla4xxx_show_boot_tgt_pri_info,
4749 qla4xxx_tgt_get_attr_visibility,
4750 qla4xxx_boot_release);
4754 if (!scsi_host_get(ha->host))
4756 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 1, ha,
4757 qla4xxx_show_boot_tgt_sec_info,
4758 qla4xxx_tgt_get_attr_visibility,
4759 qla4xxx_boot_release);
4763 if (!scsi_host_get(ha->host))
4765 boot_kobj = iscsi_boot_create_initiator(ha->boot_kset, 0, ha,
4766 qla4xxx_show_boot_ini_info,
4767 qla4xxx_ini_get_attr_visibility,
4768 qla4xxx_boot_release);
4772 if (!scsi_host_get(ha->host))
4774 boot_kobj = iscsi_boot_create_ethernet(ha->boot_kset, 0, ha,
4775 qla4xxx_show_boot_eth_info,
4776 qla4xxx_eth_get_attr_visibility,
4777 qla4xxx_boot_release);
4784 scsi_host_put(ha->host);
4786 iscsi_boot_destroy_kset(ha->boot_kset);
4792 * qla4xxx_create chap_list - Create CHAP list from FLASH
4793 * @ha: pointer to adapter structure
4795 * Read flash and make a list of CHAP entries, during login when a CHAP entry
4796 * is received, it will be checked in this list. If entry exist then the CHAP
4797 * entry index is set in the DDB. If CHAP entry does not exist in this list
4798 * then a new entry is added in FLASH in CHAP table and the index obtained is
4801 static void qla4xxx_create_chap_list(struct scsi_qla_host *ha)
4804 uint8_t *chap_flash_data = NULL;
4806 dma_addr_t chap_dma;
4807 uint32_t chap_size = 0;
4810 chap_size = MAX_CHAP_ENTRIES_40XX *
4811 sizeof(struct ql4_chap_table);
4812 else /* Single region contains CHAP info for both
4813 * ports which is divided into half for each port.
4815 chap_size = ha->hw.flt_chap_size / 2;
4817 chap_flash_data = dma_alloc_coherent(&ha->pdev->dev, chap_size,
4818 &chap_dma, GFP_KERNEL);
4819 if (!chap_flash_data) {
4820 ql4_printk(KERN_ERR, ha, "No memory for chap_flash_data\n");
4824 offset = FLASH_CHAP_OFFSET;
4826 offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2);
4827 if (ha->port_num == 1)
4828 offset += chap_size;
4831 rval = qla4xxx_get_flash(ha, chap_dma, offset, chap_size);
4832 if (rval != QLA_SUCCESS)
4833 goto exit_chap_list;
4835 if (ha->chap_list == NULL)
4836 ha->chap_list = vmalloc(chap_size);
4837 if (ha->chap_list == NULL) {
4838 ql4_printk(KERN_ERR, ha, "No memory for ha->chap_list\n");
4839 goto exit_chap_list;
4842 memcpy(ha->chap_list, chap_flash_data, chap_size);
4845 dma_free_coherent(&ha->pdev->dev, chap_size,
4846 chap_flash_data, chap_dma);
4849 static void qla4xxx_get_param_ddb(struct ddb_entry *ddb_entry,
4850 struct ql4_tuple_ddb *tddb)
4852 struct scsi_qla_host *ha;
4853 struct iscsi_cls_session *cls_sess;
4854 struct iscsi_cls_conn *cls_conn;
4855 struct iscsi_session *sess;
4856 struct iscsi_conn *conn;
4858 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
4860 cls_sess = ddb_entry->sess;
4861 sess = cls_sess->dd_data;
4862 cls_conn = ddb_entry->conn;
4863 conn = cls_conn->dd_data;
4865 tddb->tpgt = sess->tpgt;
4866 tddb->port = conn->persistent_port;
4867 strncpy(tddb->iscsi_name, sess->targetname, ISCSI_NAME_SIZE);
4868 strncpy(tddb->ip_addr, conn->persistent_address, DDB_IPADDR_LEN);
4871 static void qla4xxx_convert_param_ddb(struct dev_db_entry *fw_ddb_entry,
4872 struct ql4_tuple_ddb *tddb,
4873 uint8_t *flash_isid)
4875 uint16_t options = 0;
4877 tddb->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
4878 memcpy(&tddb->iscsi_name[0], &fw_ddb_entry->iscsi_name[0],
4879 min(sizeof(tddb->iscsi_name), sizeof(fw_ddb_entry->iscsi_name)));
4881 options = le16_to_cpu(fw_ddb_entry->options);
4882 if (options & DDB_OPT_IPV6_DEVICE)
4883 sprintf(tddb->ip_addr, "%pI6", fw_ddb_entry->ip_addr);
4885 sprintf(tddb->ip_addr, "%pI4", fw_ddb_entry->ip_addr);
4887 tddb->port = le16_to_cpu(fw_ddb_entry->port);
4889 if (flash_isid == NULL)
4890 memcpy(&tddb->isid[0], &fw_ddb_entry->isid[0],
4891 sizeof(tddb->isid));
4893 memcpy(&tddb->isid[0], &flash_isid[0], sizeof(tddb->isid));
4896 static int qla4xxx_compare_tuple_ddb(struct scsi_qla_host *ha,
4897 struct ql4_tuple_ddb *old_tddb,
4898 struct ql4_tuple_ddb *new_tddb,
4899 uint8_t is_isid_compare)
4901 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name))
4904 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr))
4907 if (old_tddb->port != new_tddb->port)
4910 /* For multi sessions, driver generates the ISID, so do not compare
4911 * ISID in reset path since it would be a comparison between the
4912 * driver generated ISID and firmware generated ISID. This could
4913 * lead to adding duplicated DDBs in the list as driver generated
4914 * ISID would not match firmware generated ISID.
4916 if (is_isid_compare) {
4917 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: old ISID [%02x%02x%02x"
4918 "%02x%02x%02x] New ISID [%02x%02x%02x%02x%02x%02x]\n",
4919 __func__, old_tddb->isid[5], old_tddb->isid[4],
4920 old_tddb->isid[3], old_tddb->isid[2], old_tddb->isid[1],
4921 old_tddb->isid[0], new_tddb->isid[5], new_tddb->isid[4],
4922 new_tddb->isid[3], new_tddb->isid[2], new_tddb->isid[1],
4923 new_tddb->isid[0]));
4925 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0],
4926 sizeof(old_tddb->isid)))
4930 DEBUG2(ql4_printk(KERN_INFO, ha,
4931 "Match Found, fw[%d,%d,%s,%s], [%d,%d,%s,%s]",
4932 old_tddb->port, old_tddb->tpgt, old_tddb->ip_addr,
4933 old_tddb->iscsi_name, new_tddb->port, new_tddb->tpgt,
4934 new_tddb->ip_addr, new_tddb->iscsi_name));
4939 static int qla4xxx_is_session_exists(struct scsi_qla_host *ha,
4940 struct dev_db_entry *fw_ddb_entry)
4942 struct ddb_entry *ddb_entry;
4943 struct ql4_tuple_ddb *fw_tddb = NULL;
4944 struct ql4_tuple_ddb *tmp_tddb = NULL;
4946 int ret = QLA_ERROR;
4948 fw_tddb = vzalloc(sizeof(*fw_tddb));
4950 DEBUG2(ql4_printk(KERN_WARNING, ha,
4951 "Memory Allocation failed.\n"));
4956 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
4958 DEBUG2(ql4_printk(KERN_WARNING, ha,
4959 "Memory Allocation failed.\n"));
4964 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL);
4966 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
4967 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
4968 if (ddb_entry == NULL)
4971 qla4xxx_get_param_ddb(ddb_entry, tmp_tddb);
4972 if (!qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, false)) {
4973 ret = QLA_SUCCESS; /* found */
4987 * qla4xxx_check_existing_isid - check if target with same isid exist
4989 * @list_nt: list of target
4990 * @isid: isid to check
4992 * This routine return QLA_SUCCESS if target with same isid exist
4994 static int qla4xxx_check_existing_isid(struct list_head *list_nt, uint8_t *isid)
4996 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp;
4997 struct dev_db_entry *fw_ddb_entry;
4999 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
5000 fw_ddb_entry = &nt_ddb_idx->fw_ddb;
5002 if (memcmp(&fw_ddb_entry->isid[0], &isid[0],
5003 sizeof(nt_ddb_idx->fw_ddb.isid)) == 0) {
5011 * qla4xxx_update_isid - compare ddbs and updated isid
5012 * @ha: Pointer to host adapter structure.
5013 * @list_nt: list of nt target
5014 * @fw_ddb_entry: firmware ddb entry
5016 * This routine update isid if ddbs have same iqn, same isid and
5017 * different IP addr.
5018 * Return QLA_SUCCESS if isid is updated.
5020 static int qla4xxx_update_isid(struct scsi_qla_host *ha,
5021 struct list_head *list_nt,
5022 struct dev_db_entry *fw_ddb_entry)
5024 uint8_t base_value, i;
5026 base_value = fw_ddb_entry->isid[1] & 0x1f;
5027 for (i = 0; i < 8; i++) {
5028 fw_ddb_entry->isid[1] = (base_value | (i << 5));
5029 if (qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid))
5033 if (!qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid))
5040 * qla4xxx_should_update_isid - check if isid need to update
5041 * @ha: Pointer to host adapter structure.
5042 * @old_tddb: ddb tuple
5043 * @new_tddb: ddb tuple
5045 * Return QLA_SUCCESS if different IP, different PORT, same iqn,
5048 static int qla4xxx_should_update_isid(struct scsi_qla_host *ha,
5049 struct ql4_tuple_ddb *old_tddb,
5050 struct ql4_tuple_ddb *new_tddb)
5052 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr) == 0) {
5054 if (old_tddb->port == new_tddb->port)
5058 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name))
5062 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0],
5063 sizeof(old_tddb->isid)))
5064 /* different isid */
5071 * qla4xxx_is_flash_ddb_exists - check if fw_ddb_entry already exists in list_nt
5072 * @ha: Pointer to host adapter structure.
5073 * @list_nt: list of nt target.
5074 * @fw_ddb_entry: firmware ddb entry.
5076 * This routine check if fw_ddb_entry already exists in list_nt to avoid
5077 * duplicate ddb in list_nt.
5078 * Return QLA_SUCCESS if duplicate ddb exit in list_nl.
5079 * Note: This function also update isid of DDB if required.
5082 static int qla4xxx_is_flash_ddb_exists(struct scsi_qla_host *ha,
5083 struct list_head *list_nt,
5084 struct dev_db_entry *fw_ddb_entry)
5086 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp;
5087 struct ql4_tuple_ddb *fw_tddb = NULL;
5088 struct ql4_tuple_ddb *tmp_tddb = NULL;
5089 int rval, ret = QLA_ERROR;
5091 fw_tddb = vzalloc(sizeof(*fw_tddb));
5093 DEBUG2(ql4_printk(KERN_WARNING, ha,
5094 "Memory Allocation failed.\n"));
5099 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
5101 DEBUG2(ql4_printk(KERN_WARNING, ha,
5102 "Memory Allocation failed.\n"));
5107 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL);
5109 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
5110 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb,
5111 nt_ddb_idx->flash_isid);
5112 ret = qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, true);
5113 /* found duplicate ddb */
5114 if (ret == QLA_SUCCESS)
5118 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
5119 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb, NULL);
5121 ret = qla4xxx_should_update_isid(ha, tmp_tddb, fw_tddb);
5122 if (ret == QLA_SUCCESS) {
5123 rval = qla4xxx_update_isid(ha, list_nt, fw_ddb_entry);
5124 if (rval == QLA_SUCCESS)
5141 static void qla4xxx_free_ddb_list(struct list_head *list_ddb)
5143 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
5145 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
5146 list_del_init(&ddb_idx->list);
5151 static struct iscsi_endpoint *qla4xxx_get_ep_fwdb(struct scsi_qla_host *ha,
5152 struct dev_db_entry *fw_ddb_entry)
5154 struct iscsi_endpoint *ep;
5155 struct sockaddr_in *addr;
5156 struct sockaddr_in6 *addr6;
5157 struct sockaddr *t_addr;
5158 struct sockaddr_storage *dst_addr;
5161 /* TODO: need to destroy on unload iscsi_endpoint*/
5162 dst_addr = vmalloc(sizeof(*dst_addr));
5166 if (fw_ddb_entry->options & DDB_OPT_IPV6_DEVICE) {
5167 t_addr = (struct sockaddr *)dst_addr;
5168 t_addr->sa_family = AF_INET6;
5169 addr6 = (struct sockaddr_in6 *)dst_addr;
5170 ip = (char *)&addr6->sin6_addr;
5171 memcpy(ip, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN);
5172 addr6->sin6_port = htons(le16_to_cpu(fw_ddb_entry->port));
5175 t_addr = (struct sockaddr *)dst_addr;
5176 t_addr->sa_family = AF_INET;
5177 addr = (struct sockaddr_in *)dst_addr;
5178 ip = (char *)&addr->sin_addr;
5179 memcpy(ip, fw_ddb_entry->ip_addr, IP_ADDR_LEN);
5180 addr->sin_port = htons(le16_to_cpu(fw_ddb_entry->port));
5183 ep = qla4xxx_ep_connect(ha->host, (struct sockaddr *)dst_addr, 0);
5188 static int qla4xxx_verify_boot_idx(struct scsi_qla_host *ha, uint16_t idx)
5190 if (ql4xdisablesysfsboot)
5192 if (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx)
5197 static void qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha,
5198 struct ddb_entry *ddb_entry,
5201 uint16_t def_timeout;
5203 ddb_entry->ddb_type = FLASH_DDB;
5204 ddb_entry->fw_ddb_index = INVALID_ENTRY;
5205 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE;
5207 ddb_entry->unblock_sess = qla4xxx_unblock_flash_ddb;
5208 ddb_entry->ddb_change = qla4xxx_flash_ddb_change;
5210 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY);
5211 atomic_set(&ddb_entry->relogin_timer, 0);
5212 atomic_set(&ddb_entry->relogin_retry_count, 0);
5213 def_timeout = le16_to_cpu(ddb_entry->fw_ddb_entry.def_timeout);
5214 ddb_entry->default_relogin_timeout =
5215 (def_timeout > LOGIN_TOV) && (def_timeout < LOGIN_TOV * 10) ?
5216 def_timeout : LOGIN_TOV;
5217 ddb_entry->default_time2wait =
5218 le16_to_cpu(ddb_entry->fw_ddb_entry.iscsi_def_time2wait);
5220 if (ql4xdisablesysfsboot &&
5221 (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx))
5222 set_bit(DF_BOOT_TGT, &ddb_entry->flags);
5225 static void qla4xxx_wait_for_ip_configuration(struct scsi_qla_host *ha)
5228 uint32_t ip_idx[IP_ADDR_COUNT] = {0, 1, 2, 3}; /* 4 IP interfaces */
5229 uint32_t sts[MBOX_REG_COUNT];
5231 unsigned long wtime;
5234 wtime = jiffies + (HZ * IP_CONFIG_TOV);
5236 for (idx = 0; idx < IP_ADDR_COUNT; idx++) {
5237 if (ip_idx[idx] == -1)
5240 ret = qla4xxx_get_ip_state(ha, 0, ip_idx[idx], sts);
5242 if (ret == QLA_ERROR) {
5247 ip_state = (sts[1] & IP_STATE_MASK) >> IP_STATE_SHIFT;
5249 DEBUG2(ql4_printk(KERN_INFO, ha,
5250 "Waiting for IP state for idx = %d, state = 0x%x\n",
5251 ip_idx[idx], ip_state));
5252 if (ip_state == IP_ADDRSTATE_UNCONFIGURED ||
5253 ip_state == IP_ADDRSTATE_INVALID ||
5254 ip_state == IP_ADDRSTATE_PREFERRED ||
5255 ip_state == IP_ADDRSTATE_DEPRICATED ||
5256 ip_state == IP_ADDRSTATE_DISABLING)
5260 /* Break if all IP states checked */
5261 if ((ip_idx[0] == -1) &&
5262 (ip_idx[1] == -1) &&
5263 (ip_idx[2] == -1) &&
5266 schedule_timeout_uninterruptible(HZ);
5267 } while (time_after(wtime, jiffies));
5270 static void qla4xxx_build_st_list(struct scsi_qla_host *ha,
5271 struct list_head *list_st)
5273 struct qla_ddb_index *st_ddb_idx;
5276 struct dev_db_entry *fw_ddb_entry;
5277 dma_addr_t fw_ddb_dma;
5279 uint32_t idx = 0, next_idx = 0;
5280 uint32_t state = 0, conn_err = 0;
5281 uint16_t conn_id = 0;
5283 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
5285 if (fw_ddb_entry == NULL) {
5286 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
5290 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
5292 fw_idx_size = sizeof(struct qla_ddb_index);
5294 for (idx = 0; idx < max_ddbs; idx = next_idx) {
5295 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
5296 NULL, &next_idx, &state,
5297 &conn_err, NULL, &conn_id);
5298 if (ret == QLA_ERROR)
5301 /* Ignore DDB if invalid state (unassigned) */
5302 if (state == DDB_DS_UNASSIGNED)
5303 goto continue_next_st;
5305 /* Check if ST, add to the list_st */
5306 if (strlen((char *) fw_ddb_entry->iscsi_name) != 0)
5307 goto continue_next_st;
5309 st_ddb_idx = vzalloc(fw_idx_size);
5313 st_ddb_idx->fw_ddb_idx = idx;
5315 list_add_tail(&st_ddb_idx->list, list_st);
5323 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
5327 * qla4xxx_remove_failed_ddb - Remove inactive or failed ddb from list
5328 * @ha: pointer to adapter structure
5329 * @list_ddb: List from which failed ddb to be removed
5331 * Iterate over the list of DDBs and find and remove DDBs that are either in
5332 * no connection active state or failed state
5334 static void qla4xxx_remove_failed_ddb(struct scsi_qla_host *ha,
5335 struct list_head *list_ddb)
5337 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
5338 uint32_t next_idx = 0;
5339 uint32_t state = 0, conn_err = 0;
5342 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
5343 ret = qla4xxx_get_fwddb_entry(ha, ddb_idx->fw_ddb_idx,
5344 NULL, 0, NULL, &next_idx, &state,
5345 &conn_err, NULL, NULL);
5346 if (ret == QLA_ERROR)
5349 if (state == DDB_DS_NO_CONNECTION_ACTIVE ||
5350 state == DDB_DS_SESSION_FAILED) {
5351 list_del_init(&ddb_idx->list);
5357 static int qla4xxx_sess_conn_setup(struct scsi_qla_host *ha,
5358 struct dev_db_entry *fw_ddb_entry,
5359 int is_reset, uint16_t idx)
5361 struct iscsi_cls_session *cls_sess;
5362 struct iscsi_session *sess;
5363 struct iscsi_cls_conn *cls_conn;
5364 struct iscsi_endpoint *ep;
5365 uint16_t cmds_max = 32;
5366 uint16_t conn_id = 0;
5367 uint32_t initial_cmdsn = 0;
5368 int ret = QLA_SUCCESS;
5370 struct ddb_entry *ddb_entry = NULL;
5372 /* Create session object, with INVALID_ENTRY,
5373 * the targer_id would get set when we issue the login
5375 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, ha->host,
5376 cmds_max, sizeof(struct ddb_entry),
5377 sizeof(struct ql4_task_data),
5378 initial_cmdsn, INVALID_ENTRY);
5385 * so calling module_put function to decrement the
5388 module_put(qla4xxx_iscsi_transport.owner);
5389 sess = cls_sess->dd_data;
5390 ddb_entry = sess->dd_data;
5391 ddb_entry->sess = cls_sess;
5393 cls_sess->recovery_tmo = ql4xsess_recovery_tmo;
5394 memcpy(&ddb_entry->fw_ddb_entry, fw_ddb_entry,
5395 sizeof(struct dev_db_entry));
5397 qla4xxx_setup_flash_ddb_entry(ha, ddb_entry, idx);
5399 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), conn_id);
5406 ddb_entry->conn = cls_conn;
5408 /* Setup ep, for displaying attributes in sysfs */
5409 ep = qla4xxx_get_ep_fwdb(ha, fw_ddb_entry);
5411 ep->conn = cls_conn;
5414 DEBUG2(ql4_printk(KERN_ERR, ha, "Unable to get ep\n"));
5419 /* Update sess/conn params */
5420 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn);
5422 if (is_reset == RESET_ADAPTER) {
5423 iscsi_block_session(cls_sess);
5424 /* Use the relogin path to discover new devices
5425 * by short-circuting the logic of setting
5426 * timer to relogin - instead set the flags
5427 * to initiate login right away.
5429 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
5430 set_bit(DF_RELOGIN, &ddb_entry->flags);
5437 static void qla4xxx_build_nt_list(struct scsi_qla_host *ha,
5438 struct list_head *list_nt, int is_reset)
5440 struct dev_db_entry *fw_ddb_entry;
5441 dma_addr_t fw_ddb_dma;
5445 uint32_t idx = 0, next_idx = 0;
5446 uint32_t state = 0, conn_err = 0;
5447 uint16_t conn_id = 0;
5448 struct qla_ddb_index *nt_ddb_idx;
5450 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
5452 if (fw_ddb_entry == NULL) {
5453 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
5456 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
5458 fw_idx_size = sizeof(struct qla_ddb_index);
5460 for (idx = 0; idx < max_ddbs; idx = next_idx) {
5461 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
5462 NULL, &next_idx, &state,
5463 &conn_err, NULL, &conn_id);
5464 if (ret == QLA_ERROR)
5467 if (qla4xxx_verify_boot_idx(ha, idx) != QLA_SUCCESS)
5468 goto continue_next_nt;
5470 /* Check if NT, then add to list it */
5471 if (strlen((char *) fw_ddb_entry->iscsi_name) == 0)
5472 goto continue_next_nt;
5474 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE ||
5475 state == DDB_DS_SESSION_FAILED))
5476 goto continue_next_nt;
5478 DEBUG2(ql4_printk(KERN_INFO, ha,
5479 "Adding DDB to session = 0x%x\n", idx));
5480 if (is_reset == INIT_ADAPTER) {
5481 nt_ddb_idx = vmalloc(fw_idx_size);
5485 nt_ddb_idx->fw_ddb_idx = idx;
5487 /* Copy original isid as it may get updated in function
5488 * qla4xxx_update_isid(). We need original isid in
5489 * function qla4xxx_compare_tuple_ddb to find duplicate
5491 memcpy(&nt_ddb_idx->flash_isid[0],
5492 &fw_ddb_entry->isid[0],
5493 sizeof(nt_ddb_idx->flash_isid));
5495 ret = qla4xxx_is_flash_ddb_exists(ha, list_nt,
5497 if (ret == QLA_SUCCESS) {
5498 /* free nt_ddb_idx and do not add to list_nt */
5500 goto continue_next_nt;
5503 /* Copy updated isid */
5504 memcpy(&nt_ddb_idx->fw_ddb, fw_ddb_entry,
5505 sizeof(struct dev_db_entry));
5507 list_add_tail(&nt_ddb_idx->list, list_nt);
5508 } else if (is_reset == RESET_ADAPTER) {
5509 if (qla4xxx_is_session_exists(ha, fw_ddb_entry) ==
5511 goto continue_next_nt;
5514 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, is_reset, idx);
5515 if (ret == QLA_ERROR)
5525 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
5528 static void qla4xxx_build_new_nt_list(struct scsi_qla_host *ha,
5529 struct list_head *list_nt)
5531 struct dev_db_entry *fw_ddb_entry;
5532 dma_addr_t fw_ddb_dma;
5536 uint32_t idx = 0, next_idx = 0;
5537 uint32_t state = 0, conn_err = 0;
5538 uint16_t conn_id = 0;
5539 struct qla_ddb_index *nt_ddb_idx;
5541 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
5543 if (fw_ddb_entry == NULL) {
5544 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
5545 goto exit_new_nt_list;
5547 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
5549 fw_idx_size = sizeof(struct qla_ddb_index);
5551 for (idx = 0; idx < max_ddbs; idx = next_idx) {
5552 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
5553 NULL, &next_idx, &state,
5554 &conn_err, NULL, &conn_id);
5555 if (ret == QLA_ERROR)
5558 /* Check if NT, then add it to list */
5559 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0)
5560 goto continue_next_new_nt;
5562 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE))
5563 goto continue_next_new_nt;
5565 DEBUG2(ql4_printk(KERN_INFO, ha,
5566 "Adding DDB to session = 0x%x\n", idx));
5568 nt_ddb_idx = vmalloc(fw_idx_size);
5572 nt_ddb_idx->fw_ddb_idx = idx;
5574 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry);
5575 if (ret == QLA_SUCCESS) {
5576 /* free nt_ddb_idx and do not add to list_nt */
5578 goto continue_next_new_nt;
5581 list_add_tail(&nt_ddb_idx->list, list_nt);
5583 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER,
5585 if (ret == QLA_ERROR)
5586 goto exit_new_nt_list;
5588 continue_next_new_nt:
5595 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
5599 * qla4xxx_sysfs_ddb_is_non_persistent - check for non-persistence of ddb entry
5600 * @dev: dev associated with the sysfs entry
5601 * @data: pointer to flashnode session object
5604 * 1: if flashnode entry is non-persistent
5605 * 0: if flashnode entry is persistent
5607 static int qla4xxx_sysfs_ddb_is_non_persistent(struct device *dev, void *data)
5609 struct iscsi_bus_flash_session *fnode_sess;
5611 if (!iscsi_flashnode_bus_match(dev, NULL))
5614 fnode_sess = iscsi_dev_to_flash_session(dev);
5616 return (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT);
5620 * qla4xxx_sysfs_ddb_tgt_create - Create sysfs entry for target
5621 * @ha: pointer to host
5622 * @fw_ddb_entry: flash ddb data
5623 * @idx: target index
5624 * @user: if set then this call is made from userland else from kernel
5627 * On sucess: QLA_SUCCESS
5628 * On failure: QLA_ERROR
5630 * This create separate sysfs entries for session and connection attributes of
5631 * the given fw ddb entry.
5632 * If this is invoked as a result of a userspace call then the entry is marked
5633 * as nonpersistent using flash_state field.
5635 static int qla4xxx_sysfs_ddb_tgt_create(struct scsi_qla_host *ha,
5636 struct dev_db_entry *fw_ddb_entry,
5637 uint16_t *idx, int user)
5639 struct iscsi_bus_flash_session *fnode_sess = NULL;
5640 struct iscsi_bus_flash_conn *fnode_conn = NULL;
5643 fnode_sess = iscsi_create_flashnode_sess(ha->host, *idx,
5644 &qla4xxx_iscsi_transport, 0);
5646 ql4_printk(KERN_ERR, ha,
5647 "%s: Unable to create session sysfs entry for flashnode %d of host%lu\n",
5648 __func__, *idx, ha->host_no);
5649 goto exit_tgt_create;
5652 fnode_conn = iscsi_create_flashnode_conn(ha->host, fnode_sess,
5653 &qla4xxx_iscsi_transport, 0);
5655 ql4_printk(KERN_ERR, ha,
5656 "%s: Unable to create conn sysfs entry for flashnode %d of host%lu\n",
5657 __func__, *idx, ha->host_no);
5662 fnode_sess->flash_state = DEV_DB_NON_PERSISTENT;
5664 fnode_sess->flash_state = DEV_DB_PERSISTENT;
5666 if (*idx == ha->pri_ddb_idx || *idx == ha->sec_ddb_idx)
5667 fnode_sess->is_boot_target = 1;
5669 fnode_sess->is_boot_target = 0;
5672 rc = qla4xxx_copy_from_fwddb_param(fnode_sess, fnode_conn,
5675 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n",
5676 __func__, fnode_sess->dev.kobj.name);
5678 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n",
5679 __func__, fnode_conn->dev.kobj.name);
5684 iscsi_destroy_flashnode_sess(fnode_sess);
5691 * qla4xxx_sysfs_ddb_add - Add new ddb entry in flash
5692 * @shost: pointer to host
5693 * @buf: type of ddb entry (ipv4/ipv6)
5694 * @len: length of buf
5696 * This creates new ddb entry in the flash by finding first free index and
5697 * storing default ddb there. And then create sysfs entry for the new ddb entry.
5699 static int qla4xxx_sysfs_ddb_add(struct Scsi_Host *shost, const char *buf,
5702 struct scsi_qla_host *ha = to_qla_host(shost);
5703 struct dev_db_entry *fw_ddb_entry = NULL;
5704 dma_addr_t fw_ddb_entry_dma;
5707 uint16_t max_ddbs = 0;
5708 uint32_t options = 0;
5709 uint32_t rval = QLA_ERROR;
5711 if (strncasecmp(PORTAL_TYPE_IPV4, buf, 4) &&
5712 strncasecmp(PORTAL_TYPE_IPV6, buf, 4)) {
5713 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Invalid portal type\n",
5718 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES :
5721 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
5722 &fw_ddb_entry_dma, GFP_KERNEL);
5723 if (!fw_ddb_entry) {
5724 DEBUG2(ql4_printk(KERN_ERR, ha,
5725 "%s: Unable to allocate dma buffer\n",
5730 dev = iscsi_find_flashnode_sess(ha->host, NULL,
5731 qla4xxx_sysfs_ddb_is_non_persistent);
5733 ql4_printk(KERN_ERR, ha,
5734 "%s: A non-persistent entry %s found\n",
5735 __func__, dev->kobj.name);
5740 /* Index 0 and 1 are reserved for boot target entries */
5741 for (idx = 2; idx < max_ddbs; idx++) {
5742 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry,
5743 fw_ddb_entry_dma, idx))
5747 if (idx == max_ddbs)
5750 if (!strncasecmp("ipv6", buf, 4))
5751 options |= IPV6_DEFAULT_DDB_ENTRY;
5753 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
5754 if (rval == QLA_ERROR)
5757 rval = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 1);
5761 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
5762 fw_ddb_entry, fw_ddb_entry_dma);
5763 if (rval == QLA_SUCCESS)
5770 * qla4xxx_sysfs_ddb_apply - write the target ddb contents to Flash
5771 * @fnode_sess: pointer to session attrs of flash ddb entry
5772 * @fnode_conn: pointer to connection attrs of flash ddb entry
5774 * This writes the contents of target ddb buffer to Flash with a valid cookie
5775 * value in order to make the ddb entry persistent.
5777 static int qla4xxx_sysfs_ddb_apply(struct iscsi_bus_flash_session *fnode_sess,
5778 struct iscsi_bus_flash_conn *fnode_conn)
5780 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
5781 struct scsi_qla_host *ha = to_qla_host(shost);
5782 uint32_t dev_db_start_offset = FLASH_OFFSET_DB_INFO;
5783 struct dev_db_entry *fw_ddb_entry = NULL;
5784 dma_addr_t fw_ddb_entry_dma;
5785 uint32_t options = 0;
5788 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
5789 &fw_ddb_entry_dma, GFP_KERNEL);
5790 if (!fw_ddb_entry) {
5791 DEBUG2(ql4_printk(KERN_ERR, ha,
5792 "%s: Unable to allocate dma buffer\n",
5795 goto exit_ddb_apply;
5798 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
5799 options |= IPV6_DEFAULT_DDB_ENTRY;
5801 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
5802 if (rval == QLA_ERROR)
5803 goto exit_ddb_apply;
5805 dev_db_start_offset += (fnode_sess->target_id *
5806 sizeof(*fw_ddb_entry));
5808 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry);
5809 fw_ddb_entry->cookie = DDB_VALID_COOKIE;
5811 rval = qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset,
5812 sizeof(*fw_ddb_entry), FLASH_OPT_RMW_COMMIT);
5814 if (rval == QLA_SUCCESS) {
5815 fnode_sess->flash_state = DEV_DB_PERSISTENT;
5816 ql4_printk(KERN_INFO, ha,
5817 "%s: flash node %u of host %lu written to flash\n",
5818 __func__, fnode_sess->target_id, ha->host_no);
5821 ql4_printk(KERN_ERR, ha,
5822 "%s: Error while writing flash node %u of host %lu to flash\n",
5823 __func__, fnode_sess->target_id, ha->host_no);
5828 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
5829 fw_ddb_entry, fw_ddb_entry_dma);
5833 static ssize_t qla4xxx_sysfs_ddb_conn_open(struct scsi_qla_host *ha,
5834 struct dev_db_entry *fw_ddb_entry,
5837 struct dev_db_entry *ddb_entry = NULL;
5838 dma_addr_t ddb_entry_dma;
5839 unsigned long wtime;
5840 uint32_t mbx_sts = 0;
5841 uint32_t state = 0, conn_err = 0;
5845 ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*ddb_entry),
5846 &ddb_entry_dma, GFP_KERNEL);
5848 DEBUG2(ql4_printk(KERN_ERR, ha,
5849 "%s: Unable to allocate dma buffer\n",
5854 memcpy(ddb_entry, fw_ddb_entry, sizeof(*ddb_entry));
5856 ret = qla4xxx_set_ddb_entry(ha, idx, ddb_entry_dma, &mbx_sts);
5857 if (ret != QLA_SUCCESS) {
5858 DEBUG2(ql4_printk(KERN_ERR, ha,
5859 "%s: Unable to set ddb entry for index %d\n",
5861 goto exit_ddb_conn_open;
5864 qla4xxx_conn_open(ha, idx);
5866 /* To ensure that sendtargets is done, wait for at least 12 secs */
5867 tmo = ((ha->def_timeout > LOGIN_TOV) &&
5868 (ha->def_timeout < LOGIN_TOV * 10) ?
5869 ha->def_timeout : LOGIN_TOV);
5871 DEBUG2(ql4_printk(KERN_INFO, ha,
5872 "Default time to wait for login to ddb %d\n", tmo));
5874 wtime = jiffies + (HZ * tmo);
5876 ret = qla4xxx_get_fwddb_entry(ha, idx, NULL, 0, NULL,
5877 NULL, &state, &conn_err, NULL,
5879 if (ret == QLA_ERROR)
5882 if (state == DDB_DS_NO_CONNECTION_ACTIVE ||
5883 state == DDB_DS_SESSION_FAILED)
5886 schedule_timeout_uninterruptible(HZ / 10);
5887 } while (time_after(wtime, jiffies));
5891 dma_free_coherent(&ha->pdev->dev, sizeof(*ddb_entry),
5892 ddb_entry, ddb_entry_dma);
5896 static int qla4xxx_ddb_login_st(struct scsi_qla_host *ha,
5897 struct dev_db_entry *fw_ddb_entry)
5899 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
5900 struct list_head list_nt;
5904 if (test_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags)) {
5905 ql4_printk(KERN_WARNING, ha,
5906 "%s: A discovery already in progress!\n", __func__);
5910 INIT_LIST_HEAD(&list_nt);
5912 set_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags);
5914 ret = qla4xxx_get_ddb_index(ha, &ddb_index);
5915 if (ret == QLA_ERROR)
5916 goto exit_login_st_clr_bit;
5918 ret = qla4xxx_sysfs_ddb_conn_open(ha, fw_ddb_entry, ddb_index);
5919 if (ret == QLA_ERROR)
5922 qla4xxx_build_new_nt_list(ha, &list_nt);
5924 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, &list_nt, list) {
5925 list_del_init(&ddb_idx->list);
5926 qla4xxx_clear_ddb_entry(ha, ddb_idx->fw_ddb_idx);
5931 if (qla4xxx_clear_ddb_entry(ha, ddb_index) == QLA_ERROR) {
5932 ql4_printk(KERN_ERR, ha,
5933 "Unable to clear DDB index = 0x%x\n", ddb_index);
5936 clear_bit(ddb_index, ha->ddb_idx_map);
5938 exit_login_st_clr_bit:
5939 clear_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags);
5943 static int qla4xxx_ddb_login_nt(struct scsi_qla_host *ha,
5944 struct dev_db_entry *fw_ddb_entry,
5947 int ret = QLA_ERROR;
5949 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry);
5950 if (ret != QLA_SUCCESS)
5951 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER,
5960 * qla4xxx_sysfs_ddb_login - Login to the specified target
5961 * @fnode_sess: pointer to session attrs of flash ddb entry
5962 * @fnode_conn: pointer to connection attrs of flash ddb entry
5964 * This logs in to the specified target
5966 static int qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess,
5967 struct iscsi_bus_flash_conn *fnode_conn)
5969 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
5970 struct scsi_qla_host *ha = to_qla_host(shost);
5971 struct dev_db_entry *fw_ddb_entry = NULL;
5972 dma_addr_t fw_ddb_entry_dma;
5973 uint32_t options = 0;
5976 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT) {
5977 ql4_printk(KERN_ERR, ha,
5978 "%s: Target info is not persistent\n", __func__);
5980 goto exit_ddb_login;
5983 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
5984 &fw_ddb_entry_dma, GFP_KERNEL);
5985 if (!fw_ddb_entry) {
5986 DEBUG2(ql4_printk(KERN_ERR, ha,
5987 "%s: Unable to allocate dma buffer\n",
5990 goto exit_ddb_login;
5993 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
5994 options |= IPV6_DEFAULT_DDB_ENTRY;
5996 ret = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
5997 if (ret == QLA_ERROR)
5998 goto exit_ddb_login;
6000 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry);
6001 fw_ddb_entry->cookie = DDB_VALID_COOKIE;
6003 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0)
6004 ret = qla4xxx_ddb_login_st(ha, fw_ddb_entry);
6006 ret = qla4xxx_ddb_login_nt(ha, fw_ddb_entry,
6007 fnode_sess->target_id);
6014 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
6015 fw_ddb_entry, fw_ddb_entry_dma);
6020 * qla4xxx_sysfs_ddb_logout_sid - Logout session for the specified target
6021 * @cls_sess: pointer to session to be logged out
6023 * This performs session log out from the specified target
6025 static int qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess)
6027 struct iscsi_session *sess;
6028 struct ddb_entry *ddb_entry = NULL;
6029 struct scsi_qla_host *ha;
6030 struct dev_db_entry *fw_ddb_entry = NULL;
6031 dma_addr_t fw_ddb_entry_dma;
6032 unsigned long flags;
6033 unsigned long wtime;
6038 sess = cls_sess->dd_data;
6039 ddb_entry = sess->dd_data;
6042 if (ddb_entry->ddb_type != FLASH_DDB) {
6043 ql4_printk(KERN_ERR, ha, "%s: Not a flash node session\n",
6046 goto exit_ddb_logout;
6049 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) {
6050 ql4_printk(KERN_ERR, ha,
6051 "%s: Logout from boot target entry is not permitted.\n",
6054 goto exit_ddb_logout;
6057 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
6058 &fw_ddb_entry_dma, GFP_KERNEL);
6059 if (!fw_ddb_entry) {
6060 ql4_printk(KERN_ERR, ha,
6061 "%s: Unable to allocate dma buffer\n", __func__);
6063 goto exit_ddb_logout;
6066 if (test_and_set_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags))
6067 goto ddb_logout_init;
6069 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
6070 fw_ddb_entry, fw_ddb_entry_dma,
6071 NULL, NULL, &ddb_state, NULL,
6073 if (ret == QLA_ERROR)
6074 goto ddb_logout_init;
6076 if (ddb_state == DDB_DS_SESSION_ACTIVE)
6077 goto ddb_logout_init;
6079 /* wait until next relogin is triggered using DF_RELOGIN and
6080 * clear DF_RELOGIN to avoid invocation of further relogin
6082 wtime = jiffies + (HZ * RELOGIN_TOV);
6084 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags))
6085 goto ddb_logout_init;
6087 schedule_timeout_uninterruptible(HZ);
6088 } while ((time_after(wtime, jiffies)));
6091 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY);
6092 atomic_set(&ddb_entry->relogin_timer, 0);
6094 options = LOGOUT_OPTION_CLOSE_SESSION;
6095 qla4xxx_session_logout_ddb(ha, ddb_entry, options);
6097 memset(fw_ddb_entry, 0, sizeof(*fw_ddb_entry));
6098 wtime = jiffies + (HZ * LOGOUT_TOV);
6100 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
6101 fw_ddb_entry, fw_ddb_entry_dma,
6102 NULL, NULL, &ddb_state, NULL,
6104 if (ret == QLA_ERROR)
6105 goto ddb_logout_clr_sess;
6107 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) ||
6108 (ddb_state == DDB_DS_SESSION_FAILED))
6109 goto ddb_logout_clr_sess;
6111 schedule_timeout_uninterruptible(HZ);
6112 } while ((time_after(wtime, jiffies)));
6114 ddb_logout_clr_sess:
6115 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
6117 * we have decremented the reference count of the driver
6118 * when we setup the session to have the driver unload
6119 * to be seamless without actually destroying the
6122 try_module_get(qla4xxx_iscsi_transport.owner);
6123 iscsi_destroy_endpoint(ddb_entry->conn->ep);
6125 spin_lock_irqsave(&ha->hardware_lock, flags);
6126 qla4xxx_free_ddb(ha, ddb_entry);
6127 clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map);
6128 spin_unlock_irqrestore(&ha->hardware_lock, flags);
6130 iscsi_session_teardown(ddb_entry->sess);
6132 clear_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags);
6137 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
6138 fw_ddb_entry, fw_ddb_entry_dma);
6143 * qla4xxx_sysfs_ddb_logout - Logout from the specified target
6144 * @fnode_sess: pointer to session attrs of flash ddb entry
6145 * @fnode_conn: pointer to connection attrs of flash ddb entry
6147 * This performs log out from the specified target
6149 static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess,
6150 struct iscsi_bus_flash_conn *fnode_conn)
6152 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
6153 struct scsi_qla_host *ha = to_qla_host(shost);
6154 struct ql4_tuple_ddb *flash_tddb = NULL;
6155 struct ql4_tuple_ddb *tmp_tddb = NULL;
6156 struct dev_db_entry *fw_ddb_entry = NULL;
6157 struct ddb_entry *ddb_entry = NULL;
6158 dma_addr_t fw_ddb_dma;
6159 uint32_t next_idx = 0;
6160 uint32_t state = 0, conn_err = 0;
6161 uint16_t conn_id = 0;
6163 int status, ret = 0;
6165 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
6167 if (fw_ddb_entry == NULL) {
6168 ql4_printk(KERN_ERR, ha, "%s:Out of memory\n", __func__);
6170 goto exit_ddb_logout;
6173 flash_tddb = vzalloc(sizeof(*flash_tddb));
6175 ql4_printk(KERN_WARNING, ha,
6176 "%s:Memory Allocation failed.\n", __func__);
6178 goto exit_ddb_logout;
6181 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
6183 ql4_printk(KERN_WARNING, ha,
6184 "%s:Memory Allocation failed.\n", __func__);
6186 goto exit_ddb_logout;
6189 if (!fnode_sess->targetname) {
6190 ql4_printk(KERN_ERR, ha,
6191 "%s:Cannot logout from SendTarget entry\n",
6194 goto exit_ddb_logout;
6197 if (fnode_sess->is_boot_target) {
6198 ql4_printk(KERN_ERR, ha,
6199 "%s: Logout from boot target entry is not permitted.\n",
6202 goto exit_ddb_logout;
6205 strncpy(flash_tddb->iscsi_name, fnode_sess->targetname,
6208 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
6209 sprintf(flash_tddb->ip_addr, "%pI6", fnode_conn->ipaddress);
6211 sprintf(flash_tddb->ip_addr, "%pI4", fnode_conn->ipaddress);
6213 flash_tddb->tpgt = fnode_sess->tpgt;
6214 flash_tddb->port = fnode_conn->port;
6216 COPY_ISID(flash_tddb->isid, fnode_sess->isid);
6218 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
6219 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
6220 if (ddb_entry == NULL)
6223 if (ddb_entry->ddb_type != FLASH_DDB)
6226 index = ddb_entry->sess->target_id;
6227 status = qla4xxx_get_fwddb_entry(ha, index, fw_ddb_entry,
6228 fw_ddb_dma, NULL, &next_idx,
6229 &state, &conn_err, NULL,
6231 if (status == QLA_ERROR) {
6236 qla4xxx_convert_param_ddb(fw_ddb_entry, tmp_tddb, NULL);
6238 status = qla4xxx_compare_tuple_ddb(ha, flash_tddb, tmp_tddb,
6240 if (status == QLA_SUCCESS) {
6241 ret = qla4xxx_sysfs_ddb_logout_sid(ddb_entry->sess);
6246 if (idx == MAX_DDB_ENTRIES)
6255 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
6261 qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session *fnode_sess,
6262 int param, char *buf)
6264 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
6265 struct scsi_qla_host *ha = to_qla_host(shost);
6266 struct iscsi_bus_flash_conn *fnode_conn;
6267 struct ql4_chap_table chap_tbl;
6272 dev = iscsi_find_flashnode_conn(fnode_sess);
6276 fnode_conn = iscsi_dev_to_flash_conn(dev);
6279 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6:
6280 rc = sprintf(buf, "%u\n", fnode_conn->is_fw_assigned_ipv6);
6282 case ISCSI_FLASHNODE_PORTAL_TYPE:
6283 rc = sprintf(buf, "%s\n", fnode_sess->portal_type);
6285 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE:
6286 rc = sprintf(buf, "%u\n", fnode_sess->auto_snd_tgt_disable);
6288 case ISCSI_FLASHNODE_DISCOVERY_SESS:
6289 rc = sprintf(buf, "%u\n", fnode_sess->discovery_sess);
6291 case ISCSI_FLASHNODE_ENTRY_EN:
6292 rc = sprintf(buf, "%u\n", fnode_sess->entry_state);
6294 case ISCSI_FLASHNODE_HDR_DGST_EN:
6295 rc = sprintf(buf, "%u\n", fnode_conn->hdrdgst_en);
6297 case ISCSI_FLASHNODE_DATA_DGST_EN:
6298 rc = sprintf(buf, "%u\n", fnode_conn->datadgst_en);
6300 case ISCSI_FLASHNODE_IMM_DATA_EN:
6301 rc = sprintf(buf, "%u\n", fnode_sess->imm_data_en);
6303 case ISCSI_FLASHNODE_INITIAL_R2T_EN:
6304 rc = sprintf(buf, "%u\n", fnode_sess->initial_r2t_en);
6306 case ISCSI_FLASHNODE_DATASEQ_INORDER:
6307 rc = sprintf(buf, "%u\n", fnode_sess->dataseq_inorder_en);
6309 case ISCSI_FLASHNODE_PDU_INORDER:
6310 rc = sprintf(buf, "%u\n", fnode_sess->pdu_inorder_en);
6312 case ISCSI_FLASHNODE_CHAP_AUTH_EN:
6313 rc = sprintf(buf, "%u\n", fnode_sess->chap_auth_en);
6315 case ISCSI_FLASHNODE_SNACK_REQ_EN:
6316 rc = sprintf(buf, "%u\n", fnode_conn->snack_req_en);
6318 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN:
6319 rc = sprintf(buf, "%u\n", fnode_sess->discovery_logout_en);
6321 case ISCSI_FLASHNODE_BIDI_CHAP_EN:
6322 rc = sprintf(buf, "%u\n", fnode_sess->bidi_chap_en);
6324 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL:
6325 rc = sprintf(buf, "%u\n", fnode_sess->discovery_auth_optional);
6327 case ISCSI_FLASHNODE_ERL:
6328 rc = sprintf(buf, "%u\n", fnode_sess->erl);
6330 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT:
6331 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_stat);
6333 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE:
6334 rc = sprintf(buf, "%u\n", fnode_conn->tcp_nagle_disable);
6336 case ISCSI_FLASHNODE_TCP_WSF_DISABLE:
6337 rc = sprintf(buf, "%u\n", fnode_conn->tcp_wsf_disable);
6339 case ISCSI_FLASHNODE_TCP_TIMER_SCALE:
6340 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timer_scale);
6342 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN:
6343 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_en);
6345 case ISCSI_FLASHNODE_IP_FRAG_DISABLE:
6346 rc = sprintf(buf, "%u\n", fnode_conn->fragment_disable);
6348 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH:
6349 rc = sprintf(buf, "%u\n", fnode_conn->max_recv_dlength);
6351 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH:
6352 rc = sprintf(buf, "%u\n", fnode_conn->max_xmit_dlength);
6354 case ISCSI_FLASHNODE_FIRST_BURST:
6355 rc = sprintf(buf, "%u\n", fnode_sess->first_burst);
6357 case ISCSI_FLASHNODE_DEF_TIME2WAIT:
6358 rc = sprintf(buf, "%u\n", fnode_sess->time2wait);
6360 case ISCSI_FLASHNODE_DEF_TIME2RETAIN:
6361 rc = sprintf(buf, "%u\n", fnode_sess->time2retain);
6363 case ISCSI_FLASHNODE_MAX_R2T:
6364 rc = sprintf(buf, "%u\n", fnode_sess->max_r2t);
6366 case ISCSI_FLASHNODE_KEEPALIVE_TMO:
6367 rc = sprintf(buf, "%u\n", fnode_conn->keepalive_timeout);
6369 case ISCSI_FLASHNODE_ISID:
6370 rc = sprintf(buf, "%02x%02x%02x%02x%02x%02x\n",
6371 fnode_sess->isid[0], fnode_sess->isid[1],
6372 fnode_sess->isid[2], fnode_sess->isid[3],
6373 fnode_sess->isid[4], fnode_sess->isid[5]);
6375 case ISCSI_FLASHNODE_TSID:
6376 rc = sprintf(buf, "%u\n", fnode_sess->tsid);
6378 case ISCSI_FLASHNODE_PORT:
6379 rc = sprintf(buf, "%d\n", fnode_conn->port);
6381 case ISCSI_FLASHNODE_MAX_BURST:
6382 rc = sprintf(buf, "%u\n", fnode_sess->max_burst);
6384 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO:
6385 rc = sprintf(buf, "%u\n",
6386 fnode_sess->default_taskmgmt_timeout);
6388 case ISCSI_FLASHNODE_IPADDR:
6389 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
6390 rc = sprintf(buf, "%pI6\n", fnode_conn->ipaddress);
6392 rc = sprintf(buf, "%pI4\n", fnode_conn->ipaddress);
6394 case ISCSI_FLASHNODE_ALIAS:
6395 if (fnode_sess->targetalias)
6396 rc = sprintf(buf, "%s\n", fnode_sess->targetalias);
6398 rc = sprintf(buf, "\n");
6400 case ISCSI_FLASHNODE_REDIRECT_IPADDR:
6401 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
6402 rc = sprintf(buf, "%pI6\n",
6403 fnode_conn->redirect_ipaddr);
6405 rc = sprintf(buf, "%pI4\n",
6406 fnode_conn->redirect_ipaddr);
6408 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE:
6409 rc = sprintf(buf, "%u\n", fnode_conn->max_segment_size);
6411 case ISCSI_FLASHNODE_LOCAL_PORT:
6412 rc = sprintf(buf, "%u\n", fnode_conn->local_port);
6414 case ISCSI_FLASHNODE_IPV4_TOS:
6415 rc = sprintf(buf, "%u\n", fnode_conn->ipv4_tos);
6417 case ISCSI_FLASHNODE_IPV6_TC:
6418 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
6419 rc = sprintf(buf, "%u\n",
6420 fnode_conn->ipv6_traffic_class);
6422 rc = sprintf(buf, "\n");
6424 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL:
6425 rc = sprintf(buf, "%u\n", fnode_conn->ipv6_flow_label);
6427 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6:
6428 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
6429 rc = sprintf(buf, "%pI6\n",
6430 fnode_conn->link_local_ipv6_addr);
6432 rc = sprintf(buf, "\n");
6434 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX:
6435 rc = sprintf(buf, "%u\n", fnode_sess->discovery_parent_idx);
6437 case ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE:
6438 if (fnode_sess->discovery_parent_type == DDB_ISNS)
6439 parent_type = ISCSI_DISC_PARENT_ISNS;
6440 else if (fnode_sess->discovery_parent_type == DDB_NO_LINK)
6441 parent_type = ISCSI_DISC_PARENT_UNKNOWN;
6442 else if (fnode_sess->discovery_parent_type < MAX_DDB_ENTRIES)
6443 parent_type = ISCSI_DISC_PARENT_SENDTGT;
6445 parent_type = ISCSI_DISC_PARENT_UNKNOWN;
6447 rc = sprintf(buf, "%s\n",
6448 iscsi_get_discovery_parent_name(parent_type));
6450 case ISCSI_FLASHNODE_NAME:
6451 if (fnode_sess->targetname)
6452 rc = sprintf(buf, "%s\n", fnode_sess->targetname);
6454 rc = sprintf(buf, "\n");
6456 case ISCSI_FLASHNODE_TPGT:
6457 rc = sprintf(buf, "%u\n", fnode_sess->tpgt);
6459 case ISCSI_FLASHNODE_TCP_XMIT_WSF:
6460 rc = sprintf(buf, "%u\n", fnode_conn->tcp_xmit_wsf);
6462 case ISCSI_FLASHNODE_TCP_RECV_WSF:
6463 rc = sprintf(buf, "%u\n", fnode_conn->tcp_recv_wsf);
6465 case ISCSI_FLASHNODE_CHAP_OUT_IDX:
6466 rc = sprintf(buf, "%u\n", fnode_sess->chap_out_idx);
6468 case ISCSI_FLASHNODE_USERNAME:
6469 if (fnode_sess->chap_auth_en) {
6470 qla4xxx_get_uni_chap_at_index(ha,
6473 fnode_sess->chap_out_idx);
6474 rc = sprintf(buf, "%s\n", chap_tbl.name);
6476 rc = sprintf(buf, "\n");
6479 case ISCSI_FLASHNODE_PASSWORD:
6480 if (fnode_sess->chap_auth_en) {
6481 qla4xxx_get_uni_chap_at_index(ha,
6484 fnode_sess->chap_out_idx);
6485 rc = sprintf(buf, "%s\n", chap_tbl.secret);
6487 rc = sprintf(buf, "\n");
6490 case ISCSI_FLASHNODE_STATSN:
6491 rc = sprintf(buf, "%u\n", fnode_conn->statsn);
6493 case ISCSI_FLASHNODE_EXP_STATSN:
6494 rc = sprintf(buf, "%u\n", fnode_conn->exp_statsn);
6496 case ISCSI_FLASHNODE_IS_BOOT_TGT:
6497 rc = sprintf(buf, "%u\n", fnode_sess->is_boot_target);
6509 * qla4xxx_sysfs_ddb_set_param - Set parameter for firmware DDB entry
6510 * @fnode_sess: pointer to session attrs of flash ddb entry
6511 * @fnode_conn: pointer to connection attrs of flash ddb entry
6512 * @data: Parameters and their values to update
6515 * This sets the parameter of flash ddb entry and writes them to flash
6518 qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess,
6519 struct iscsi_bus_flash_conn *fnode_conn,
6520 void *data, int len)
6522 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
6523 struct scsi_qla_host *ha = to_qla_host(shost);
6524 struct iscsi_flashnode_param_info *fnode_param;
6525 struct nlattr *attr;
6529 nla_for_each_attr(attr, data, len, rem) {
6530 fnode_param = nla_data(attr);
6532 switch (fnode_param->param) {
6533 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6:
6534 fnode_conn->is_fw_assigned_ipv6 = fnode_param->value[0];
6536 case ISCSI_FLASHNODE_PORTAL_TYPE:
6537 memcpy(fnode_sess->portal_type, fnode_param->value,
6538 strlen(fnode_sess->portal_type));
6540 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE:
6541 fnode_sess->auto_snd_tgt_disable =
6542 fnode_param->value[0];
6544 case ISCSI_FLASHNODE_DISCOVERY_SESS:
6545 fnode_sess->discovery_sess = fnode_param->value[0];
6547 case ISCSI_FLASHNODE_ENTRY_EN:
6548 fnode_sess->entry_state = fnode_param->value[0];
6550 case ISCSI_FLASHNODE_HDR_DGST_EN:
6551 fnode_conn->hdrdgst_en = fnode_param->value[0];
6553 case ISCSI_FLASHNODE_DATA_DGST_EN:
6554 fnode_conn->datadgst_en = fnode_param->value[0];
6556 case ISCSI_FLASHNODE_IMM_DATA_EN:
6557 fnode_sess->imm_data_en = fnode_param->value[0];
6559 case ISCSI_FLASHNODE_INITIAL_R2T_EN:
6560 fnode_sess->initial_r2t_en = fnode_param->value[0];
6562 case ISCSI_FLASHNODE_DATASEQ_INORDER:
6563 fnode_sess->dataseq_inorder_en = fnode_param->value[0];
6565 case ISCSI_FLASHNODE_PDU_INORDER:
6566 fnode_sess->pdu_inorder_en = fnode_param->value[0];
6568 case ISCSI_FLASHNODE_CHAP_AUTH_EN:
6569 fnode_sess->chap_auth_en = fnode_param->value[0];
6571 case ISCSI_FLASHNODE_SNACK_REQ_EN:
6572 fnode_conn->snack_req_en = fnode_param->value[0];
6574 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN:
6575 fnode_sess->discovery_logout_en = fnode_param->value[0];
6577 case ISCSI_FLASHNODE_BIDI_CHAP_EN:
6578 fnode_sess->bidi_chap_en = fnode_param->value[0];
6580 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL:
6581 fnode_sess->discovery_auth_optional =
6582 fnode_param->value[0];
6584 case ISCSI_FLASHNODE_ERL:
6585 fnode_sess->erl = fnode_param->value[0];
6587 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT:
6588 fnode_conn->tcp_timestamp_stat = fnode_param->value[0];
6590 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE:
6591 fnode_conn->tcp_nagle_disable = fnode_param->value[0];
6593 case ISCSI_FLASHNODE_TCP_WSF_DISABLE:
6594 fnode_conn->tcp_wsf_disable = fnode_param->value[0];
6596 case ISCSI_FLASHNODE_TCP_TIMER_SCALE:
6597 fnode_conn->tcp_timer_scale = fnode_param->value[0];
6599 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN:
6600 fnode_conn->tcp_timestamp_en = fnode_param->value[0];
6602 case ISCSI_FLASHNODE_IP_FRAG_DISABLE:
6603 fnode_conn->fragment_disable = fnode_param->value[0];
6605 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH:
6606 fnode_conn->max_recv_dlength =
6607 *(unsigned *)fnode_param->value;
6609 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH:
6610 fnode_conn->max_xmit_dlength =
6611 *(unsigned *)fnode_param->value;
6613 case ISCSI_FLASHNODE_FIRST_BURST:
6614 fnode_sess->first_burst =
6615 *(unsigned *)fnode_param->value;
6617 case ISCSI_FLASHNODE_DEF_TIME2WAIT:
6618 fnode_sess->time2wait = *(uint16_t *)fnode_param->value;
6620 case ISCSI_FLASHNODE_DEF_TIME2RETAIN:
6621 fnode_sess->time2retain =
6622 *(uint16_t *)fnode_param->value;
6624 case ISCSI_FLASHNODE_MAX_R2T:
6625 fnode_sess->max_r2t =
6626 *(uint16_t *)fnode_param->value;
6628 case ISCSI_FLASHNODE_KEEPALIVE_TMO:
6629 fnode_conn->keepalive_timeout =
6630 *(uint16_t *)fnode_param->value;
6632 case ISCSI_FLASHNODE_ISID:
6633 memcpy(fnode_sess->isid, fnode_param->value,
6634 sizeof(fnode_sess->isid));
6636 case ISCSI_FLASHNODE_TSID:
6637 fnode_sess->tsid = *(uint16_t *)fnode_param->value;
6639 case ISCSI_FLASHNODE_PORT:
6640 fnode_conn->port = *(uint16_t *)fnode_param->value;
6642 case ISCSI_FLASHNODE_MAX_BURST:
6643 fnode_sess->max_burst = *(unsigned *)fnode_param->value;
6645 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO:
6646 fnode_sess->default_taskmgmt_timeout =
6647 *(uint16_t *)fnode_param->value;
6649 case ISCSI_FLASHNODE_IPADDR:
6650 memcpy(fnode_conn->ipaddress, fnode_param->value,
6653 case ISCSI_FLASHNODE_ALIAS:
6654 rc = iscsi_switch_str_param(&fnode_sess->targetalias,
6655 (char *)fnode_param->value);
6657 case ISCSI_FLASHNODE_REDIRECT_IPADDR:
6658 memcpy(fnode_conn->redirect_ipaddr, fnode_param->value,
6661 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE:
6662 fnode_conn->max_segment_size =
6663 *(unsigned *)fnode_param->value;
6665 case ISCSI_FLASHNODE_LOCAL_PORT:
6666 fnode_conn->local_port =
6667 *(uint16_t *)fnode_param->value;
6669 case ISCSI_FLASHNODE_IPV4_TOS:
6670 fnode_conn->ipv4_tos = fnode_param->value[0];
6672 case ISCSI_FLASHNODE_IPV6_TC:
6673 fnode_conn->ipv6_traffic_class = fnode_param->value[0];
6675 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL:
6676 fnode_conn->ipv6_flow_label = fnode_param->value[0];
6678 case ISCSI_FLASHNODE_NAME:
6679 rc = iscsi_switch_str_param(&fnode_sess->targetname,
6680 (char *)fnode_param->value);
6682 case ISCSI_FLASHNODE_TPGT:
6683 fnode_sess->tpgt = *(uint16_t *)fnode_param->value;
6685 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6:
6686 memcpy(fnode_conn->link_local_ipv6_addr,
6687 fnode_param->value, IPv6_ADDR_LEN);
6689 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX:
6690 fnode_sess->discovery_parent_idx =
6691 *(uint16_t *)fnode_param->value;
6693 case ISCSI_FLASHNODE_TCP_XMIT_WSF:
6694 fnode_conn->tcp_xmit_wsf =
6695 *(uint8_t *)fnode_param->value;
6697 case ISCSI_FLASHNODE_TCP_RECV_WSF:
6698 fnode_conn->tcp_recv_wsf =
6699 *(uint8_t *)fnode_param->value;
6701 case ISCSI_FLASHNODE_STATSN:
6702 fnode_conn->statsn = *(uint32_t *)fnode_param->value;
6704 case ISCSI_FLASHNODE_EXP_STATSN:
6705 fnode_conn->exp_statsn =
6706 *(uint32_t *)fnode_param->value;
6709 ql4_printk(KERN_ERR, ha,
6710 "%s: No such sysfs attribute\n", __func__);
6712 goto exit_set_param;
6716 rc = qla4xxx_sysfs_ddb_apply(fnode_sess, fnode_conn);
6723 * qla4xxx_sysfs_ddb_delete - Delete firmware DDB entry
6724 * @fnode_sess: pointer to session attrs of flash ddb entry
6726 * This invalidates the flash ddb entry at the given index
6728 static int qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess)
6730 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
6731 struct scsi_qla_host *ha = to_qla_host(shost);
6732 uint32_t dev_db_start_offset;
6733 uint32_t dev_db_end_offset;
6734 struct dev_db_entry *fw_ddb_entry = NULL;
6735 dma_addr_t fw_ddb_entry_dma;
6736 uint16_t *ddb_cookie = NULL;
6737 size_t ddb_size = 0;
6742 if (fnode_sess->is_boot_target) {
6744 DEBUG2(ql4_printk(KERN_ERR, ha,
6745 "%s: Deletion of boot target entry is not permitted.\n",
6750 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT)
6753 if (is_qla40XX(ha)) {
6754 dev_db_start_offset = FLASH_OFFSET_DB_INFO;
6755 dev_db_end_offset = FLASH_OFFSET_DB_END;
6756 dev_db_start_offset += (fnode_sess->target_id *
6757 sizeof(*fw_ddb_entry));
6758 ddb_size = sizeof(*fw_ddb_entry);
6760 dev_db_start_offset = FLASH_RAW_ACCESS_ADDR +
6761 (ha->hw.flt_region_ddb << 2);
6762 /* flt_ddb_size is DDB table size for both ports
6763 * so divide it by 2 to calculate the offset for second port
6765 if (ha->port_num == 1)
6766 dev_db_start_offset += (ha->hw.flt_ddb_size / 2);
6768 dev_db_end_offset = dev_db_start_offset +
6769 (ha->hw.flt_ddb_size / 2);
6771 dev_db_start_offset += (fnode_sess->target_id *
6772 sizeof(*fw_ddb_entry));
6773 dev_db_start_offset += offsetof(struct dev_db_entry, cookie);
6775 ddb_size = sizeof(*ddb_cookie);
6778 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: start offset=%u, end offset=%u\n",
6779 __func__, dev_db_start_offset, dev_db_end_offset));
6781 if (dev_db_start_offset > dev_db_end_offset) {
6783 DEBUG2(ql4_printk(KERN_ERR, ha, "%s:Invalid DDB index %u\n",
6784 __func__, fnode_sess->target_id));
6788 pddb = dma_alloc_coherent(&ha->pdev->dev, ddb_size,
6789 &fw_ddb_entry_dma, GFP_KERNEL);
6792 DEBUG2(ql4_printk(KERN_ERR, ha,
6793 "%s: Unable to allocate dma buffer\n",
6798 if (is_qla40XX(ha)) {
6799 fw_ddb_entry = pddb;
6800 memset(fw_ddb_entry, 0, ddb_size);
6801 ddb_cookie = &fw_ddb_entry->cookie;
6806 /* invalidate the cookie */
6807 *ddb_cookie = 0xFFEE;
6808 qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset,
6809 ddb_size, FLASH_OPT_RMW_COMMIT);
6812 target_id = fnode_sess->target_id;
6813 iscsi_destroy_flashnode_sess(fnode_sess);
6814 ql4_printk(KERN_INFO, ha,
6815 "%s: session and conn entries for flashnode %u of host %lu deleted\n",
6816 __func__, target_id, ha->host_no);
6819 dma_free_coherent(&ha->pdev->dev, ddb_size, pddb,
6825 * qla4xxx_sysfs_ddb_export - Create sysfs entries for firmware DDBs
6826 * @ha: pointer to adapter structure
6828 * Export the firmware DDB for all send targets and normal targets to sysfs.
6830 static int qla4xxx_sysfs_ddb_export(struct scsi_qla_host *ha)
6832 struct dev_db_entry *fw_ddb_entry = NULL;
6833 dma_addr_t fw_ddb_entry_dma;
6836 int ret = QLA_SUCCESS;
6838 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev,
6839 sizeof(*fw_ddb_entry),
6840 &fw_ddb_entry_dma, GFP_KERNEL);
6841 if (!fw_ddb_entry) {
6842 DEBUG2(ql4_printk(KERN_ERR, ha,
6843 "%s: Unable to allocate dma buffer\n",
6848 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES :
6851 for (idx = 0; idx < max_ddbs; idx++) {
6852 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry, fw_ddb_entry_dma,
6856 ret = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 0);
6863 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry,
6869 static void qla4xxx_sysfs_ddb_remove(struct scsi_qla_host *ha)
6871 iscsi_destroy_all_flashnode(ha->host);
6875 * qla4xxx_build_ddb_list - Build ddb list and setup sessions
6876 * @ha: pointer to adapter structure
6877 * @is_reset: Is this init path or reset path
6879 * Create a list of sendtargets (st) from firmware DDBs, issue send targets
6880 * using connection open, then create the list of normal targets (nt)
6881 * from firmware DDBs. Based on the list of nt setup session and connection
6884 void qla4xxx_build_ddb_list(struct scsi_qla_host *ha, int is_reset)
6887 struct list_head list_st, list_nt;
6888 struct qla_ddb_index *st_ddb_idx, *st_ddb_idx_tmp;
6889 unsigned long wtime;
6891 if (!test_bit(AF_LINK_UP, &ha->flags)) {
6892 set_bit(AF_BUILD_DDB_LIST, &ha->flags);
6893 ha->is_reset = is_reset;
6897 INIT_LIST_HEAD(&list_st);
6898 INIT_LIST_HEAD(&list_nt);
6900 qla4xxx_build_st_list(ha, &list_st);
6902 /* Before issuing conn open mbox, ensure all IPs states are configured
6903 * Note, conn open fails if IPs are not configured
6905 qla4xxx_wait_for_ip_configuration(ha);
6907 /* Go thru the STs and fire the sendtargets by issuing conn open mbx */
6908 list_for_each_entry_safe(st_ddb_idx, st_ddb_idx_tmp, &list_st, list) {
6909 qla4xxx_conn_open(ha, st_ddb_idx->fw_ddb_idx);
6912 /* Wait to ensure all sendtargets are done for min 12 sec wait */
6913 tmo = ((ha->def_timeout > LOGIN_TOV) &&
6914 (ha->def_timeout < LOGIN_TOV * 10) ?
6915 ha->def_timeout : LOGIN_TOV);
6917 DEBUG2(ql4_printk(KERN_INFO, ha,
6918 "Default time to wait for build ddb %d\n", tmo));
6920 wtime = jiffies + (HZ * tmo);
6922 if (list_empty(&list_st))
6925 qla4xxx_remove_failed_ddb(ha, &list_st);
6926 schedule_timeout_uninterruptible(HZ / 10);
6927 } while (time_after(wtime, jiffies));
6929 /* Free up the sendtargets list */
6930 qla4xxx_free_ddb_list(&list_st);
6932 qla4xxx_build_nt_list(ha, &list_nt, is_reset);
6934 qla4xxx_free_ddb_list(&list_nt);
6936 qla4xxx_free_ddb_index(ha);
6940 * qla4xxx_wait_login_resp_boot_tgt - Wait for iSCSI boot target login
6942 * @ha: pointer to adapter structure
6944 * When the boot entry is normal iSCSI target then DF_BOOT_TGT flag will be
6945 * set in DDB and we will wait for login response of boot targets during
6948 static void qla4xxx_wait_login_resp_boot_tgt(struct scsi_qla_host *ha)
6950 struct ddb_entry *ddb_entry;
6951 struct dev_db_entry *fw_ddb_entry = NULL;
6952 dma_addr_t fw_ddb_entry_dma;
6953 unsigned long wtime;
6955 int max_ddbs, idx, ret;
6957 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
6960 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
6961 &fw_ddb_entry_dma, GFP_KERNEL);
6962 if (!fw_ddb_entry) {
6963 ql4_printk(KERN_ERR, ha,
6964 "%s: Unable to allocate dma buffer\n", __func__);
6965 goto exit_login_resp;
6968 wtime = jiffies + (HZ * BOOT_LOGIN_RESP_TOV);
6970 for (idx = 0; idx < max_ddbs; idx++) {
6971 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
6972 if (ddb_entry == NULL)
6975 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) {
6976 DEBUG2(ql4_printk(KERN_INFO, ha,
6977 "%s: DDB index [%d]\n", __func__,
6978 ddb_entry->fw_ddb_index));
6980 ret = qla4xxx_get_fwddb_entry(ha,
6981 ddb_entry->fw_ddb_index,
6982 fw_ddb_entry, fw_ddb_entry_dma,
6983 NULL, NULL, &ddb_state, NULL,
6985 if (ret == QLA_ERROR)
6986 goto exit_login_resp;
6988 if ((ddb_state == DDB_DS_SESSION_ACTIVE) ||
6989 (ddb_state == DDB_DS_SESSION_FAILED))
6992 schedule_timeout_uninterruptible(HZ);
6994 } while ((time_after(wtime, jiffies)));
6996 if (!time_after(wtime, jiffies)) {
6997 DEBUG2(ql4_printk(KERN_INFO, ha,
6998 "%s: Login response wait timer expired\n",
7000 goto exit_login_resp;
7007 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7008 fw_ddb_entry, fw_ddb_entry_dma);
7012 * qla4xxx_probe_adapter - callback function to probe HBA
7013 * @pdev: pointer to pci_dev structure
7014 * @pci_device_id: pointer to pci_device entry
7016 * This routine will probe for Qlogic 4xxx iSCSI host adapters.
7017 * It returns zero if successful. It also initializes all data necessary for
7020 static int qla4xxx_probe_adapter(struct pci_dev *pdev,
7021 const struct pci_device_id *ent)
7023 int ret = -ENODEV, status;
7024 struct Scsi_Host *host;
7025 struct scsi_qla_host *ha;
7026 uint8_t init_retry_count = 0;
7028 struct qla4_8xxx_legacy_intr_set *nx_legacy_intr;
7031 if (pci_enable_device(pdev))
7034 host = iscsi_host_alloc(&qla4xxx_driver_template, sizeof(*ha), 0);
7037 "qla4xxx: Couldn't allocate host from scsi layer!\n");
7038 goto probe_disable_device;
7041 /* Clear our data area */
7042 ha = to_qla_host(host);
7043 memset(ha, 0, sizeof(*ha));
7045 /* Save the information from PCI BIOS. */
7048 ha->host_no = host->host_no;
7049 ha->func_num = PCI_FUNC(ha->pdev->devfn);
7051 pci_enable_pcie_error_reporting(pdev);
7053 /* Setup Runtime configurable options */
7054 if (is_qla8022(ha)) {
7055 ha->isp_ops = &qla4_82xx_isp_ops;
7056 ha->reg_tbl = (uint32_t *) qla4_82xx_reg_tbl;
7057 ha->qdr_sn_window = -1;
7058 ha->ddr_mn_window = -1;
7059 ha->curr_window = 255;
7060 nx_legacy_intr = &legacy_intr[ha->func_num];
7061 ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit;
7062 ha->nx_legacy_intr.tgt_status_reg =
7063 nx_legacy_intr->tgt_status_reg;
7064 ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg;
7065 ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg;
7066 } else if (is_qla8032(ha) || is_qla8042(ha)) {
7067 ha->isp_ops = &qla4_83xx_isp_ops;
7068 ha->reg_tbl = (uint32_t *)qla4_83xx_reg_tbl;
7070 ha->isp_ops = &qla4xxx_isp_ops;
7073 if (is_qla80XX(ha)) {
7074 rwlock_init(&ha->hw_lock);
7075 ha->pf_bit = ha->func_num << 16;
7076 /* Set EEH reset type to fundamental if required by hba */
7077 pdev->needs_freset = 1;
7080 /* Configure PCI I/O space. */
7081 ret = ha->isp_ops->iospace_config(ha);
7083 goto probe_failed_ioconfig;
7085 ql4_printk(KERN_INFO, ha, "Found an ISP%04x, irq %d, iobase 0x%p\n",
7086 pdev->device, pdev->irq, ha->reg);
7088 qla4xxx_config_dma_addressing(ha);
7090 /* Initialize lists and spinlocks. */
7091 INIT_LIST_HEAD(&ha->free_srb_q);
7093 mutex_init(&ha->mbox_sem);
7094 mutex_init(&ha->chap_sem);
7095 init_completion(&ha->mbx_intr_comp);
7096 init_completion(&ha->disable_acb_comp);
7098 spin_lock_init(&ha->hardware_lock);
7099 spin_lock_init(&ha->work_lock);
7101 /* Initialize work list */
7102 INIT_LIST_HEAD(&ha->work_list);
7104 /* Allocate dma buffers */
7105 if (qla4xxx_mem_alloc(ha)) {
7106 ql4_printk(KERN_WARNING, ha,
7107 "[ERROR] Failed to allocate memory for adapter\n");
7113 host->cmd_per_lun = 3;
7114 host->max_channel = 0;
7115 host->max_lun = MAX_LUNS - 1;
7116 host->max_id = MAX_TARGETS;
7117 host->max_cmd_len = IOCB_MAX_CDB_LEN;
7118 host->can_queue = MAX_SRBS ;
7119 host->transportt = qla4xxx_scsi_transport;
7121 ret = scsi_init_shared_tag_map(host, MAX_SRBS);
7123 ql4_printk(KERN_WARNING, ha,
7124 "%s: scsi_init_shared_tag_map failed\n", __func__);
7128 pci_set_drvdata(pdev, ha);
7130 ret = scsi_add_host(host, &pdev->dev);
7135 qla4_8xxx_get_flash_info(ha);
7137 if (is_qla8032(ha) || is_qla8042(ha)) {
7138 qla4_83xx_read_reset_template(ha);
7140 * NOTE: If ql4dontresethba==1, set IDC_CTRL DONTRESET_BIT0.
7141 * If DONRESET_BIT0 is set, drivers should not set dev_state
7142 * to NEED_RESET. But if NEED_RESET is set, drivers should
7143 * should honor the reset.
7145 if (ql4xdontresethba == 1)
7146 qla4_83xx_set_idc_dontreset(ha);
7150 * Initialize the Host adapter request/response queues and
7152 * NOTE: interrupts enabled upon successful completion
7154 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER);
7156 /* Dont retry adapter initialization if IRQ allocation failed */
7157 if (is_qla80XX(ha) && !test_bit(AF_IRQ_ATTACHED, &ha->flags)) {
7158 ql4_printk(KERN_WARNING, ha, "%s: Skipping retry of adapter initialization\n",
7160 goto skip_retry_init;
7163 while ((!test_bit(AF_ONLINE, &ha->flags)) &&
7164 init_retry_count++ < MAX_INIT_RETRIES) {
7166 if (is_qla80XX(ha)) {
7167 ha->isp_ops->idc_lock(ha);
7168 dev_state = qla4_8xxx_rd_direct(ha,
7169 QLA8XXX_CRB_DEV_STATE);
7170 ha->isp_ops->idc_unlock(ha);
7171 if (dev_state == QLA8XXX_DEV_FAILED) {
7172 ql4_printk(KERN_WARNING, ha, "%s: don't retry "
7173 "initialize adapter. H/W is in failed state\n",
7178 DEBUG2(printk("scsi: %s: retrying adapter initialization "
7179 "(%d)\n", __func__, init_retry_count));
7181 if (ha->isp_ops->reset_chip(ha) == QLA_ERROR)
7184 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER);
7188 if (!test_bit(AF_ONLINE, &ha->flags)) {
7189 ql4_printk(KERN_WARNING, ha, "Failed to initialize adapter\n");
7191 if ((is_qla8022(ha) && ql4xdontresethba) ||
7192 ((is_qla8032(ha) || is_qla8042(ha)) &&
7193 qla4_83xx_idc_dontreset(ha))) {
7194 /* Put the device in failed state. */
7195 DEBUG2(printk(KERN_ERR "HW STATE: FAILED\n"));
7196 ha->isp_ops->idc_lock(ha);
7197 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
7198 QLA8XXX_DEV_FAILED);
7199 ha->isp_ops->idc_unlock(ha);
7205 /* Startup the kernel thread for this host adapter. */
7206 DEBUG2(printk("scsi: %s: Starting kernel thread for "
7207 "qla4xxx_dpc\n", __func__));
7208 sprintf(buf, "qla4xxx_%lu_dpc", ha->host_no);
7209 ha->dpc_thread = create_singlethread_workqueue(buf);
7210 if (!ha->dpc_thread) {
7211 ql4_printk(KERN_WARNING, ha, "Unable to start DPC thread!\n");
7215 INIT_WORK(&ha->dpc_work, qla4xxx_do_dpc);
7217 ha->task_wq = alloc_workqueue("qla4xxx_%lu_task", WQ_MEM_RECLAIM, 1,
7220 ql4_printk(KERN_WARNING, ha, "Unable to start task thread!\n");
7226 * For ISP-8XXX, request_irqs is called in qla4_8xxx_load_risc
7227 * (which is called indirectly by qla4xxx_initialize_adapter),
7228 * so that irqs will be registered after crbinit but before
7231 if (is_qla40XX(ha)) {
7232 ret = qla4xxx_request_irqs(ha);
7234 ql4_printk(KERN_WARNING, ha, "Failed to reserve "
7235 "interrupt %d already in use.\n", pdev->irq);
7240 pci_save_state(ha->pdev);
7241 ha->isp_ops->enable_intrs(ha);
7243 /* Start timer thread. */
7244 qla4xxx_start_timer(ha, qla4xxx_timer, 1);
7246 set_bit(AF_INIT_DONE, &ha->flags);
7248 qla4_8xxx_alloc_sysfs_attr(ha);
7251 " QLogic iSCSI HBA Driver version: %s\n"
7252 " QLogic ISP%04x @ %s, host#=%ld, fw=%02d.%02d.%02d.%02d\n",
7253 qla4xxx_version_str, ha->pdev->device, pci_name(ha->pdev),
7254 ha->host_no, ha->fw_info.fw_major, ha->fw_info.fw_minor,
7255 ha->fw_info.fw_patch, ha->fw_info.fw_build);
7257 /* Set the driver version */
7259 qla4_8xxx_set_param(ha, SET_DRVR_VERSION);
7261 if (qla4xxx_setup_boot_info(ha))
7262 ql4_printk(KERN_ERR, ha,
7263 "%s: No iSCSI boot target configured\n", __func__);
7265 if (qla4xxx_sysfs_ddb_export(ha))
7266 ql4_printk(KERN_ERR, ha,
7267 "%s: Error exporting ddb to sysfs\n", __func__);
7269 /* Perform the build ddb list and login to each */
7270 qla4xxx_build_ddb_list(ha, INIT_ADAPTER);
7271 iscsi_host_for_each_session(ha->host, qla4xxx_login_flash_ddb);
7272 qla4xxx_wait_login_resp_boot_tgt(ha);
7274 qla4xxx_create_chap_list(ha);
7276 qla4xxx_create_ifaces(ha);
7280 scsi_remove_host(ha->host);
7283 qla4xxx_free_adapter(ha);
7285 probe_failed_ioconfig:
7286 pci_disable_pcie_error_reporting(pdev);
7287 scsi_host_put(ha->host);
7289 probe_disable_device:
7290 pci_disable_device(pdev);
7296 * qla4xxx_prevent_other_port_reinit - prevent other port from re-initialize
7297 * @ha: pointer to adapter structure
7299 * Mark the other ISP-4xxx port to indicate that the driver is being removed,
7300 * so that the other port will not re-initialize while in the process of
7301 * removing the ha due to driver unload or hba hotplug.
7303 static void qla4xxx_prevent_other_port_reinit(struct scsi_qla_host *ha)
7305 struct scsi_qla_host *other_ha = NULL;
7306 struct pci_dev *other_pdev = NULL;
7307 int fn = ISP4XXX_PCI_FN_2;
7309 /*iscsi function numbers for ISP4xxx is 1 and 3*/
7310 if (PCI_FUNC(ha->pdev->devfn) & BIT_1)
7311 fn = ISP4XXX_PCI_FN_1;
7314 pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus),
7315 ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
7318 /* Get other_ha if other_pdev is valid and state is enable*/
7320 if (atomic_read(&other_pdev->enable_cnt)) {
7321 other_ha = pci_get_drvdata(other_pdev);
7323 set_bit(AF_HA_REMOVAL, &other_ha->flags);
7324 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: "
7325 "Prevent %s reinit\n", __func__,
7326 dev_name(&other_ha->pdev->dev)));
7329 pci_dev_put(other_pdev);
7333 static void qla4xxx_destroy_fw_ddb_session(struct scsi_qla_host *ha)
7335 struct ddb_entry *ddb_entry;
7339 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
7341 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
7342 if ((ddb_entry != NULL) &&
7343 (ddb_entry->ddb_type == FLASH_DDB)) {
7345 options = LOGOUT_OPTION_CLOSE_SESSION;
7346 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options)
7348 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n",
7351 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
7353 * we have decremented the reference count of the driver
7354 * when we setup the session to have the driver unload
7355 * to be seamless without actually destroying the
7358 try_module_get(qla4xxx_iscsi_transport.owner);
7359 iscsi_destroy_endpoint(ddb_entry->conn->ep);
7360 qla4xxx_free_ddb(ha, ddb_entry);
7361 iscsi_session_teardown(ddb_entry->sess);
7366 * qla4xxx_remove_adapter - callback function to remove adapter.
7367 * @pci_dev: PCI device pointer
7369 static void qla4xxx_remove_adapter(struct pci_dev *pdev)
7371 struct scsi_qla_host *ha;
7374 * If the PCI device is disabled then it means probe_adapter had
7375 * failed and resources already cleaned up on probe_adapter exit.
7377 if (!pci_is_enabled(pdev))
7380 ha = pci_get_drvdata(pdev);
7383 qla4xxx_prevent_other_port_reinit(ha);
7385 /* destroy iface from sysfs */
7386 qla4xxx_destroy_ifaces(ha);
7388 if ((!ql4xdisablesysfsboot) && ha->boot_kset)
7389 iscsi_boot_destroy_kset(ha->boot_kset);
7391 qla4xxx_destroy_fw_ddb_session(ha);
7392 qla4_8xxx_free_sysfs_attr(ha);
7394 qla4xxx_sysfs_ddb_remove(ha);
7395 scsi_remove_host(ha->host);
7397 qla4xxx_free_adapter(ha);
7399 scsi_host_put(ha->host);
7401 pci_disable_pcie_error_reporting(pdev);
7402 pci_disable_device(pdev);
7403 pci_set_drvdata(pdev, NULL);
7407 * qla4xxx_config_dma_addressing() - Configure OS DMA addressing method.
7410 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
7411 * supported addressing method.
7413 static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha)
7417 /* Update our PCI device dma_mask for full 64 bit mask */
7418 if (pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(64)) == 0) {
7419 if (pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) {
7420 dev_dbg(&ha->pdev->dev,
7421 "Failed to set 64 bit PCI consistent mask; "
7423 retval = pci_set_consistent_dma_mask(ha->pdev,
7427 retval = pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(32));
7430 static int qla4xxx_slave_alloc(struct scsi_device *sdev)
7432 struct iscsi_cls_session *cls_sess;
7433 struct iscsi_session *sess;
7434 struct ddb_entry *ddb;
7435 int queue_depth = QL4_DEF_QDEPTH;
7437 cls_sess = starget_to_session(sdev->sdev_target);
7438 sess = cls_sess->dd_data;
7439 ddb = sess->dd_data;
7441 sdev->hostdata = ddb;
7442 sdev->tagged_supported = 1;
7444 if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU)
7445 queue_depth = ql4xmaxqdepth;
7447 scsi_activate_tcq(sdev, queue_depth);
7451 static int qla4xxx_slave_configure(struct scsi_device *sdev)
7453 sdev->tagged_supported = 1;
7457 static void qla4xxx_slave_destroy(struct scsi_device *sdev)
7459 scsi_deactivate_tcq(sdev, 1);
7462 static int qla4xxx_change_queue_depth(struct scsi_device *sdev, int qdepth,
7465 if (!ql4xqfulltracking)
7468 return iscsi_change_queue_depth(sdev, qdepth, reason);
7472 * qla4xxx_del_from_active_array - returns an active srb
7473 * @ha: Pointer to host adapter structure.
7474 * @index: index into the active_array
7476 * This routine removes and returns the srb at the specified index
7478 struct srb *qla4xxx_del_from_active_array(struct scsi_qla_host *ha,
7481 struct srb *srb = NULL;
7482 struct scsi_cmnd *cmd = NULL;
7484 cmd = scsi_host_find_tag(ha->host, index);
7488 srb = (struct srb *)CMD_SP(cmd);
7492 /* update counters */
7493 if (srb->flags & SRB_DMA_VALID) {
7494 ha->iocb_cnt -= srb->iocb_cnt;
7496 srb->cmd->host_scribble =
7497 (unsigned char *)(unsigned long) MAX_SRBS;
7503 * qla4xxx_eh_wait_on_command - waits for command to be returned by firmware
7504 * @ha: Pointer to host adapter structure.
7505 * @cmd: Scsi Command to wait on.
7507 * This routine waits for the command to be returned by the Firmware
7508 * for some max time.
7510 static int qla4xxx_eh_wait_on_command(struct scsi_qla_host *ha,
7511 struct scsi_cmnd *cmd)
7515 uint32_t max_wait_time = EH_WAIT_CMD_TOV;
7518 /* Dont wait on command if PCI error is being handled
7521 if (unlikely(pci_channel_offline(ha->pdev)) ||
7522 (test_bit(AF_EEH_BUSY, &ha->flags))) {
7523 ql4_printk(KERN_WARNING, ha, "scsi%ld: Return from %s\n",
7524 ha->host_no, __func__);
7529 /* Checking to see if its returned to OS */
7530 rp = (struct srb *) CMD_SP(cmd);
7537 } while (max_wait_time--);
7543 * qla4xxx_wait_for_hba_online - waits for HBA to come online
7544 * @ha: Pointer to host adapter structure
7546 static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha)
7548 unsigned long wait_online;
7550 wait_online = jiffies + (HBA_ONLINE_TOV * HZ);
7551 while (time_before(jiffies, wait_online)) {
7563 * qla4xxx_eh_wait_for_commands - wait for active cmds to finish.
7564 * @ha: pointer to HBA
7568 * This function waits for all outstanding commands to a lun to complete. It
7569 * returns 0 if all pending commands are returned and 1 otherwise.
7571 static int qla4xxx_eh_wait_for_commands(struct scsi_qla_host *ha,
7572 struct scsi_target *stgt,
7573 struct scsi_device *sdev)
7577 struct scsi_cmnd *cmd;
7580 * Waiting for all commands for the designated target or dev
7581 * in the active array
7583 for (cnt = 0; cnt < ha->host->can_queue; cnt++) {
7584 cmd = scsi_host_find_tag(ha->host, cnt);
7585 if (cmd && stgt == scsi_target(cmd->device) &&
7586 (!sdev || sdev == cmd->device)) {
7587 if (!qla4xxx_eh_wait_on_command(ha, cmd)) {
7597 * qla4xxx_eh_abort - callback for abort task.
7598 * @cmd: Pointer to Linux's SCSI command structure
7600 * This routine is called by the Linux OS to abort the specified
7603 static int qla4xxx_eh_abort(struct scsi_cmnd *cmd)
7605 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
7606 unsigned int id = cmd->device->id;
7607 unsigned int lun = cmd->device->lun;
7608 unsigned long flags;
7609 struct srb *srb = NULL;
7613 ql4_printk(KERN_INFO, ha,
7614 "scsi%ld:%d:%d: Abort command issued cmd=%p\n",
7615 ha->host_no, id, lun, cmd);
7617 spin_lock_irqsave(&ha->hardware_lock, flags);
7618 srb = (struct srb *) CMD_SP(cmd);
7620 spin_unlock_irqrestore(&ha->hardware_lock, flags);
7623 kref_get(&srb->srb_ref);
7624 spin_unlock_irqrestore(&ha->hardware_lock, flags);
7626 if (qla4xxx_abort_task(ha, srb) != QLA_SUCCESS) {
7627 DEBUG3(printk("scsi%ld:%d:%d: Abort_task mbx failed.\n",
7628 ha->host_no, id, lun));
7631 DEBUG3(printk("scsi%ld:%d:%d: Abort_task mbx success.\n",
7632 ha->host_no, id, lun));
7636 kref_put(&srb->srb_ref, qla4xxx_srb_compl);
7638 /* Wait for command to complete */
7640 if (!qla4xxx_eh_wait_on_command(ha, cmd)) {
7641 DEBUG2(printk("scsi%ld:%d:%d: Abort handler timed out\n",
7642 ha->host_no, id, lun));
7647 ql4_printk(KERN_INFO, ha,
7648 "scsi%ld:%d:%d: Abort command - %s\n",
7649 ha->host_no, id, lun, (ret == SUCCESS) ? "succeeded" : "failed");
7655 * qla4xxx_eh_device_reset - callback for target reset.
7656 * @cmd: Pointer to Linux's SCSI command structure
7658 * This routine is called by the Linux OS to reset all luns on the
7661 static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd)
7663 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
7664 struct ddb_entry *ddb_entry = cmd->device->hostdata;
7665 int ret = FAILED, stat;
7670 ret = iscsi_block_scsi_eh(cmd);
7675 ql4_printk(KERN_INFO, ha,
7676 "scsi%ld:%d:%d:%d: DEVICE RESET ISSUED.\n", ha->host_no,
7677 cmd->device->channel, cmd->device->id, cmd->device->lun);
7679 DEBUG2(printk(KERN_INFO
7680 "scsi%ld: DEVICE_RESET cmd=%p jiffies = 0x%lx, to=%x,"
7681 "dpc_flags=%lx, status=%x allowed=%d\n", ha->host_no,
7682 cmd, jiffies, cmd->request->timeout / HZ,
7683 ha->dpc_flags, cmd->result, cmd->allowed));
7685 /* FIXME: wait for hba to go online */
7686 stat = qla4xxx_reset_lun(ha, ddb_entry, cmd->device->lun);
7687 if (stat != QLA_SUCCESS) {
7688 ql4_printk(KERN_INFO, ha, "DEVICE RESET FAILED. %d\n", stat);
7689 goto eh_dev_reset_done;
7692 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device),
7694 ql4_printk(KERN_INFO, ha,
7695 "DEVICE RESET FAILED - waiting for "
7697 goto eh_dev_reset_done;
7701 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun,
7702 MM_LUN_RESET) != QLA_SUCCESS)
7703 goto eh_dev_reset_done;
7705 ql4_printk(KERN_INFO, ha,
7706 "scsi(%ld:%d:%d:%d): DEVICE RESET SUCCEEDED.\n",
7707 ha->host_no, cmd->device->channel, cmd->device->id,
7718 * qla4xxx_eh_target_reset - callback for target reset.
7719 * @cmd: Pointer to Linux's SCSI command structure
7721 * This routine is called by the Linux OS to reset the target.
7723 static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd)
7725 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
7726 struct ddb_entry *ddb_entry = cmd->device->hostdata;
7732 ret = iscsi_block_scsi_eh(cmd);
7736 starget_printk(KERN_INFO, scsi_target(cmd->device),
7737 "WARM TARGET RESET ISSUED.\n");
7739 DEBUG2(printk(KERN_INFO
7740 "scsi%ld: TARGET_DEVICE_RESET cmd=%p jiffies = 0x%lx, "
7741 "to=%x,dpc_flags=%lx, status=%x allowed=%d\n",
7742 ha->host_no, cmd, jiffies, cmd->request->timeout / HZ,
7743 ha->dpc_flags, cmd->result, cmd->allowed));
7745 stat = qla4xxx_reset_target(ha, ddb_entry);
7746 if (stat != QLA_SUCCESS) {
7747 starget_printk(KERN_INFO, scsi_target(cmd->device),
7748 "WARM TARGET RESET FAILED.\n");
7752 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device),
7754 starget_printk(KERN_INFO, scsi_target(cmd->device),
7755 "WARM TARGET DEVICE RESET FAILED - "
7756 "waiting for commands.\n");
7761 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun,
7762 MM_TGT_WARM_RESET) != QLA_SUCCESS) {
7763 starget_printk(KERN_INFO, scsi_target(cmd->device),
7764 "WARM TARGET DEVICE RESET FAILED - "
7765 "marker iocb failed.\n");
7769 starget_printk(KERN_INFO, scsi_target(cmd->device),
7770 "WARM TARGET RESET SUCCEEDED.\n");
7775 * qla4xxx_is_eh_active - check if error handler is running
7776 * @shost: Pointer to SCSI Host struct
7778 * This routine finds that if reset host is called in EH
7779 * scenario or from some application like sg_reset
7781 static int qla4xxx_is_eh_active(struct Scsi_Host *shost)
7783 if (shost->shost_state == SHOST_RECOVERY)
7789 * qla4xxx_eh_host_reset - kernel callback
7790 * @cmd: Pointer to Linux's SCSI command structure
7792 * This routine is invoked by the Linux kernel to perform fatal error
7793 * recovery on the specified adapter.
7795 static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd)
7797 int return_status = FAILED;
7798 struct scsi_qla_host *ha;
7800 ha = to_qla_host(cmd->device->host);
7802 if ((is_qla8032(ha) || is_qla8042(ha)) && ql4xdontresethba)
7803 qla4_83xx_set_idc_dontreset(ha);
7806 * For ISP8324 and ISP8042, if IDC_CTRL DONTRESET_BIT0 is set by other
7807 * protocol drivers, we should not set device_state to NEED_RESET
7809 if (ql4xdontresethba ||
7810 ((is_qla8032(ha) || is_qla8042(ha)) &&
7811 qla4_83xx_idc_dontreset(ha))) {
7812 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n",
7813 ha->host_no, __func__));
7815 /* Clear outstanding srb in queues */
7816 if (qla4xxx_is_eh_active(cmd->device->host))
7817 qla4xxx_abort_active_cmds(ha, DID_ABORT << 16);
7822 ql4_printk(KERN_INFO, ha,
7823 "scsi(%ld:%d:%d:%d): HOST RESET ISSUED.\n", ha->host_no,
7824 cmd->device->channel, cmd->device->id, cmd->device->lun);
7826 if (qla4xxx_wait_for_hba_online(ha) != QLA_SUCCESS) {
7827 DEBUG2(printk("scsi%ld:%d: %s: Unable to reset host. Adapter "
7828 "DEAD.\n", ha->host_no, cmd->device->channel,
7834 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
7836 set_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
7838 set_bit(DPC_RESET_HA, &ha->dpc_flags);
7841 if (qla4xxx_recover_adapter(ha) == QLA_SUCCESS)
7842 return_status = SUCCESS;
7844 ql4_printk(KERN_INFO, ha, "HOST RESET %s.\n",
7845 return_status == FAILED ? "FAILED" : "SUCCEEDED");
7847 return return_status;
7850 static int qla4xxx_context_reset(struct scsi_qla_host *ha)
7852 uint32_t mbox_cmd[MBOX_REG_COUNT];
7853 uint32_t mbox_sts[MBOX_REG_COUNT];
7854 struct addr_ctrl_blk_def *acb = NULL;
7855 uint32_t acb_len = sizeof(struct addr_ctrl_blk_def);
7856 int rval = QLA_SUCCESS;
7859 acb = dma_alloc_coherent(&ha->pdev->dev,
7860 sizeof(struct addr_ctrl_blk_def),
7861 &acb_dma, GFP_KERNEL);
7863 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc acb\n",
7866 goto exit_port_reset;
7869 memset(acb, 0, acb_len);
7871 rval = qla4xxx_get_acb(ha, acb_dma, PRIMARI_ACB, acb_len);
7872 if (rval != QLA_SUCCESS) {
7877 rval = qla4xxx_disable_acb(ha);
7878 if (rval != QLA_SUCCESS) {
7883 wait_for_completion_timeout(&ha->disable_acb_comp,
7884 DISABLE_ACB_TOV * HZ);
7886 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], acb_dma);
7887 if (rval != QLA_SUCCESS) {
7893 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk_def),
7896 DEBUG2(ql4_printk(KERN_INFO, ha, "%s %s\n", __func__,
7897 rval == QLA_SUCCESS ? "SUCCEEDED" : "FAILED"));
7901 static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type)
7903 struct scsi_qla_host *ha = to_qla_host(shost);
7904 int rval = QLA_SUCCESS;
7907 if (ql4xdontresethba) {
7908 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Don't Reset HBA\n",
7911 goto exit_host_reset;
7914 if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
7915 goto recover_adapter;
7917 switch (reset_type) {
7918 case SCSI_ADAPTER_RESET:
7919 set_bit(DPC_RESET_HA, &ha->dpc_flags);
7921 case SCSI_FIRMWARE_RESET:
7922 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
7924 /* set firmware context reset */
7925 set_bit(DPC_RESET_HA_FW_CONTEXT,
7928 rval = qla4xxx_context_reset(ha);
7929 goto exit_host_reset;
7936 /* For ISP8324 and ISP8042 set graceful reset bit in IDC_DRV_CTRL if
7937 * reset is issued by application */
7938 if ((is_qla8032(ha) || is_qla8042(ha)) &&
7939 test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
7940 idc_ctrl = qla4_83xx_rd_reg(ha, QLA83XX_IDC_DRV_CTRL);
7941 qla4_83xx_wr_reg(ha, QLA83XX_IDC_DRV_CTRL,
7942 (idc_ctrl | GRACEFUL_RESET_BIT1));
7945 rval = qla4xxx_recover_adapter(ha);
7946 if (rval != QLA_SUCCESS) {
7947 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: recover adapter fail\n",
7956 /* PCI AER driver recovers from all correctable errors w/o
7957 * driver intervention. For uncorrectable errors PCI AER
7958 * driver calls the following device driver's callbacks
7960 * - Fatal Errors - link_reset
7961 * - Non-Fatal Errors - driver's pci_error_detected() which
7962 * returns CAN_RECOVER, NEED_RESET or DISCONNECT.
7964 * PCI AER driver calls
7965 * CAN_RECOVER - driver's pci_mmio_enabled(), mmio_enabled
7966 * returns RECOVERED or NEED_RESET if fw_hung
7967 * NEED_RESET - driver's slot_reset()
7968 * DISCONNECT - device is dead & cannot recover
7969 * RECOVERED - driver's pci_resume()
7971 static pci_ers_result_t
7972 qla4xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
7974 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
7976 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: error detected:state %x\n",
7977 ha->host_no, __func__, state);
7979 if (!is_aer_supported(ha))
7980 return PCI_ERS_RESULT_NONE;
7983 case pci_channel_io_normal:
7984 clear_bit(AF_EEH_BUSY, &ha->flags);
7985 return PCI_ERS_RESULT_CAN_RECOVER;
7986 case pci_channel_io_frozen:
7987 set_bit(AF_EEH_BUSY, &ha->flags);
7988 qla4xxx_mailbox_premature_completion(ha);
7989 qla4xxx_free_irqs(ha);
7990 pci_disable_device(pdev);
7991 /* Return back all IOs */
7992 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
7993 return PCI_ERS_RESULT_NEED_RESET;
7994 case pci_channel_io_perm_failure:
7995 set_bit(AF_EEH_BUSY, &ha->flags);
7996 set_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags);
7997 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
7998 return PCI_ERS_RESULT_DISCONNECT;
8000 return PCI_ERS_RESULT_NEED_RESET;
8004 * qla4xxx_pci_mmio_enabled() gets called if
8005 * qla4xxx_pci_error_detected() returns PCI_ERS_RESULT_CAN_RECOVER
8006 * and read/write to the device still works.
8008 static pci_ers_result_t
8009 qla4xxx_pci_mmio_enabled(struct pci_dev *pdev)
8011 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
8013 if (!is_aer_supported(ha))
8014 return PCI_ERS_RESULT_NONE;
8016 return PCI_ERS_RESULT_RECOVERED;
8019 static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha)
8021 uint32_t rval = QLA_ERROR;
8023 struct pci_dev *other_pdev = NULL;
8025 ql4_printk(KERN_WARNING, ha, "scsi%ld: In %s\n", ha->host_no, __func__);
8027 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
8029 if (test_bit(AF_ONLINE, &ha->flags)) {
8030 clear_bit(AF_ONLINE, &ha->flags);
8031 clear_bit(AF_LINK_UP, &ha->flags);
8032 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session);
8033 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
8036 fn = PCI_FUNC(ha->pdev->devfn);
8039 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Finding PCI device at "
8040 "func %x\n", ha->host_no, __func__, fn);
8041 /* Get the pci device given the domain, bus,
8042 * slot/function number */
8044 pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus),
8045 ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
8051 if (atomic_read(&other_pdev->enable_cnt)) {
8052 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Found PCI "
8053 "func in enabled state%x\n", ha->host_no,
8055 pci_dev_put(other_pdev);
8058 pci_dev_put(other_pdev);
8061 /* The first function on the card, the reset owner will
8062 * start & initialize the firmware. The other functions
8063 * on the card will reset the firmware context
8066 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn being reset "
8067 "0x%x is the owner\n", ha->host_no, __func__,
8070 ha->isp_ops->idc_lock(ha);
8071 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
8073 ha->isp_ops->idc_unlock(ha);
8075 rval = qla4_8xxx_update_idc_reg(ha);
8076 if (rval == QLA_ERROR) {
8077 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: FAILED\n",
8078 ha->host_no, __func__);
8079 ha->isp_ops->idc_lock(ha);
8080 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
8081 QLA8XXX_DEV_FAILED);
8082 ha->isp_ops->idc_unlock(ha);
8083 goto exit_error_recovery;
8086 clear_bit(AF_FW_RECOVERY, &ha->flags);
8087 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
8089 if (rval != QLA_SUCCESS) {
8090 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: "
8091 "FAILED\n", ha->host_no, __func__);
8092 ha->isp_ops->idc_lock(ha);
8093 qla4_8xxx_clear_drv_active(ha);
8094 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
8095 QLA8XXX_DEV_FAILED);
8096 ha->isp_ops->idc_unlock(ha);
8098 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: "
8099 "READY\n", ha->host_no, __func__);
8100 ha->isp_ops->idc_lock(ha);
8101 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
8103 /* Clear driver state register */
8104 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_STATE, 0);
8105 qla4_8xxx_set_drv_active(ha);
8106 ha->isp_ops->idc_unlock(ha);
8107 ha->isp_ops->enable_intrs(ha);
8110 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn 0x%x is not "
8111 "the reset owner\n", ha->host_no, __func__,
8113 if ((qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE) ==
8114 QLA8XXX_DEV_READY)) {
8115 clear_bit(AF_FW_RECOVERY, &ha->flags);
8116 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
8117 if (rval == QLA_SUCCESS)
8118 ha->isp_ops->enable_intrs(ha);
8120 ha->isp_ops->idc_lock(ha);
8121 qla4_8xxx_set_drv_active(ha);
8122 ha->isp_ops->idc_unlock(ha);
8125 exit_error_recovery:
8126 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
8130 static pci_ers_result_t
8131 qla4xxx_pci_slot_reset(struct pci_dev *pdev)
8133 pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
8134 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
8137 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: slot_reset\n",
8138 ha->host_no, __func__);
8140 if (!is_aer_supported(ha))
8141 return PCI_ERS_RESULT_NONE;
8143 /* Restore the saved state of PCIe device -
8144 * BAR registers, PCI Config space, PCIX, MSI,
8147 pci_restore_state(pdev);
8149 /* pci_restore_state() clears the saved_state flag of the device
8150 * save restored state which resets saved_state flag
8152 pci_save_state(pdev);
8154 /* Initialize device or resume if in suspended state */
8155 rc = pci_enable_device(pdev);
8157 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Can't re-enable "
8158 "device after reset\n", ha->host_no, __func__);
8159 goto exit_slot_reset;
8162 ha->isp_ops->disable_intrs(ha);
8164 if (is_qla80XX(ha)) {
8165 if (qla4_8xxx_error_recovery(ha) == QLA_SUCCESS) {
8166 ret = PCI_ERS_RESULT_RECOVERED;
8167 goto exit_slot_reset;
8169 goto exit_slot_reset;
8173 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Return=%x\n"
8174 "device after reset\n", ha->host_no, __func__, ret);
8179 qla4xxx_pci_resume(struct pci_dev *pdev)
8181 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
8184 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: pci_resume\n",
8185 ha->host_no, __func__);
8187 ret = qla4xxx_wait_for_hba_online(ha);
8188 if (ret != QLA_SUCCESS) {
8189 ql4_printk(KERN_ERR, ha, "scsi%ld: %s: the device failed to "
8190 "resume I/O from slot/link_reset\n", ha->host_no,
8194 pci_cleanup_aer_uncorrect_error_status(pdev);
8195 clear_bit(AF_EEH_BUSY, &ha->flags);
8198 static const struct pci_error_handlers qla4xxx_err_handler = {
8199 .error_detected = qla4xxx_pci_error_detected,
8200 .mmio_enabled = qla4xxx_pci_mmio_enabled,
8201 .slot_reset = qla4xxx_pci_slot_reset,
8202 .resume = qla4xxx_pci_resume,
8205 static struct pci_device_id qla4xxx_pci_tbl[] = {
8207 .vendor = PCI_VENDOR_ID_QLOGIC,
8208 .device = PCI_DEVICE_ID_QLOGIC_ISP4010,
8209 .subvendor = PCI_ANY_ID,
8210 .subdevice = PCI_ANY_ID,
8213 .vendor = PCI_VENDOR_ID_QLOGIC,
8214 .device = PCI_DEVICE_ID_QLOGIC_ISP4022,
8215 .subvendor = PCI_ANY_ID,
8216 .subdevice = PCI_ANY_ID,
8219 .vendor = PCI_VENDOR_ID_QLOGIC,
8220 .device = PCI_DEVICE_ID_QLOGIC_ISP4032,
8221 .subvendor = PCI_ANY_ID,
8222 .subdevice = PCI_ANY_ID,
8225 .vendor = PCI_VENDOR_ID_QLOGIC,
8226 .device = PCI_DEVICE_ID_QLOGIC_ISP8022,
8227 .subvendor = PCI_ANY_ID,
8228 .subdevice = PCI_ANY_ID,
8231 .vendor = PCI_VENDOR_ID_QLOGIC,
8232 .device = PCI_DEVICE_ID_QLOGIC_ISP8324,
8233 .subvendor = PCI_ANY_ID,
8234 .subdevice = PCI_ANY_ID,
8237 .vendor = PCI_VENDOR_ID_QLOGIC,
8238 .device = PCI_DEVICE_ID_QLOGIC_ISP8042,
8239 .subvendor = PCI_ANY_ID,
8240 .subdevice = PCI_ANY_ID,
8244 MODULE_DEVICE_TABLE(pci, qla4xxx_pci_tbl);
8246 static struct pci_driver qla4xxx_pci_driver = {
8247 .name = DRIVER_NAME,
8248 .id_table = qla4xxx_pci_tbl,
8249 .probe = qla4xxx_probe_adapter,
8250 .remove = qla4xxx_remove_adapter,
8251 .err_handler = &qla4xxx_err_handler,
8254 static int __init qla4xxx_module_init(void)
8258 /* Allocate cache for SRBs. */
8259 srb_cachep = kmem_cache_create("qla4xxx_srbs", sizeof(struct srb), 0,
8260 SLAB_HWCACHE_ALIGN, NULL);
8261 if (srb_cachep == NULL) {
8263 "%s: Unable to allocate SRB cache..."
8264 "Failing load!\n", DRIVER_NAME);
8269 /* Derive version string. */
8270 strcpy(qla4xxx_version_str, QLA4XXX_DRIVER_VERSION);
8271 if (ql4xextended_error_logging)
8272 strcat(qla4xxx_version_str, "-debug");
8274 qla4xxx_scsi_transport =
8275 iscsi_register_transport(&qla4xxx_iscsi_transport);
8276 if (!qla4xxx_scsi_transport){
8278 goto release_srb_cache;
8281 ret = pci_register_driver(&qla4xxx_pci_driver);
8283 goto unregister_transport;
8285 printk(KERN_INFO "QLogic iSCSI HBA Driver\n");
8288 unregister_transport:
8289 iscsi_unregister_transport(&qla4xxx_iscsi_transport);
8291 kmem_cache_destroy(srb_cachep);
8296 static void __exit qla4xxx_module_exit(void)
8298 pci_unregister_driver(&qla4xxx_pci_driver);
8299 iscsi_unregister_transport(&qla4xxx_iscsi_transport);
8300 kmem_cache_destroy(srb_cachep);
8303 module_init(qla4xxx_module_init);
8304 module_exit(qla4xxx_module_exit);
8306 MODULE_AUTHOR("QLogic Corporation");
8307 MODULE_DESCRIPTION("QLogic iSCSI HBA Driver");
8308 MODULE_LICENSE("GPL");
8309 MODULE_VERSION(QLA4XXX_DRIVER_VERSION);