2 * QLogic iSCSI HBA Driver
3 * Copyright (c) 2003-2010 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"
25 static char qla4xxx_version_str[40];
28 * SRB allocation cache
30 static struct kmem_cache *srb_cachep;
33 * Module parameter information and variables
35 int ql4xdisablesysfsboot = 1;
36 module_param(ql4xdisablesysfsboot, int, S_IRUGO | S_IWUSR);
37 MODULE_PARM_DESC(ql4xdisablesysfsboot,
38 "Set to disable exporting boot targets to sysfs\n"
39 " 0 - Export boot targets\n"
40 " 1 - Do not export boot targets (Default)");
42 int ql4xdontresethba = 0;
43 module_param(ql4xdontresethba, int, S_IRUGO | S_IWUSR);
44 MODULE_PARM_DESC(ql4xdontresethba,
45 "Don't reset the HBA for driver recovery \n"
46 " 0 - It will reset HBA (Default)\n"
47 " 1 - It will NOT reset HBA");
49 int ql4xextended_error_logging = 0; /* 0 = off, 1 = log errors */
50 module_param(ql4xextended_error_logging, int, S_IRUGO | S_IWUSR);
51 MODULE_PARM_DESC(ql4xextended_error_logging,
52 "Option to enable extended error logging, "
53 "Default is 0 - no logging, 1 - debug logging");
55 int ql4xenablemsix = 1;
56 module_param(ql4xenablemsix, int, S_IRUGO|S_IWUSR);
57 MODULE_PARM_DESC(ql4xenablemsix,
58 "Set to enable MSI or MSI-X interrupt mechanism.\n"
59 " 0 = enable INTx interrupt mechanism.\n"
60 " 1 = enable MSI-X interrupt mechanism (Default).\n"
61 " 2 = enable MSI interrupt mechanism.");
63 #define QL4_DEF_QDEPTH 32
64 static int ql4xmaxqdepth = QL4_DEF_QDEPTH;
65 module_param(ql4xmaxqdepth, int, S_IRUGO | S_IWUSR);
66 MODULE_PARM_DESC(ql4xmaxqdepth,
67 "Maximum queue depth to report for target devices.\n"
70 static int ql4xsess_recovery_tmo = QL4_SESS_RECOVERY_TMO;
71 module_param(ql4xsess_recovery_tmo, int, S_IRUGO);
72 MODULE_PARM_DESC(ql4xsess_recovery_tmo,
73 "Target Session Recovery Timeout.\n"
74 " Default: 120 sec.");
76 static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha);
78 * SCSI host template entry points
80 static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha);
83 * iSCSI template entry points
85 static int qla4xxx_conn_get_param(struct iscsi_cls_conn *conn,
86 enum iscsi_param param, char *buf);
87 static int qla4xxx_host_get_param(struct Scsi_Host *shost,
88 enum iscsi_host_param param, char *buf);
89 static int qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data,
91 static int qla4xxx_get_iface_param(struct iscsi_iface *iface,
92 enum iscsi_param_type param_type,
93 int param, char *buf);
94 static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc);
95 static struct iscsi_endpoint *qla4xxx_ep_connect(struct Scsi_Host *shost,
96 struct sockaddr *dst_addr,
98 static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms);
99 static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep);
100 static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep,
101 enum iscsi_param param, char *buf);
102 static int qla4xxx_conn_start(struct iscsi_cls_conn *conn);
103 static struct iscsi_cls_conn *
104 qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx);
105 static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session,
106 struct iscsi_cls_conn *cls_conn,
107 uint64_t transport_fd, int is_leading);
108 static void qla4xxx_conn_destroy(struct iscsi_cls_conn *conn);
109 static struct iscsi_cls_session *
110 qla4xxx_session_create(struct iscsi_endpoint *ep, uint16_t cmds_max,
111 uint16_t qdepth, uint32_t initial_cmdsn);
112 static void qla4xxx_session_destroy(struct iscsi_cls_session *sess);
113 static void qla4xxx_task_work(struct work_struct *wdata);
114 static int qla4xxx_alloc_pdu(struct iscsi_task *, uint8_t);
115 static int qla4xxx_task_xmit(struct iscsi_task *);
116 static void qla4xxx_task_cleanup(struct iscsi_task *);
117 static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session);
118 static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn,
119 struct iscsi_stats *stats);
121 * SCSI host template entry points
123 static int qla4xxx_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *cmd);
124 static int qla4xxx_eh_abort(struct scsi_cmnd *cmd);
125 static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd);
126 static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd);
127 static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd);
128 static int qla4xxx_slave_alloc(struct scsi_device *device);
129 static int qla4xxx_slave_configure(struct scsi_device *device);
130 static void qla4xxx_slave_destroy(struct scsi_device *sdev);
131 static umode_t ql4_attr_is_visible(int param_type, int param);
132 static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type);
134 static struct qla4_8xxx_legacy_intr_set legacy_intr[] =
135 QLA82XX_LEGACY_INTR_CONFIG;
137 static struct scsi_host_template qla4xxx_driver_template = {
138 .module = THIS_MODULE,
140 .proc_name = DRIVER_NAME,
141 .queuecommand = qla4xxx_queuecommand,
143 .eh_abort_handler = qla4xxx_eh_abort,
144 .eh_device_reset_handler = qla4xxx_eh_device_reset,
145 .eh_target_reset_handler = qla4xxx_eh_target_reset,
146 .eh_host_reset_handler = qla4xxx_eh_host_reset,
147 .eh_timed_out = qla4xxx_eh_cmd_timed_out,
149 .slave_configure = qla4xxx_slave_configure,
150 .slave_alloc = qla4xxx_slave_alloc,
151 .slave_destroy = qla4xxx_slave_destroy,
155 .use_clustering = ENABLE_CLUSTERING,
156 .sg_tablesize = SG_ALL,
158 .max_sectors = 0xFFFF,
159 .shost_attrs = qla4xxx_host_attrs,
160 .host_reset = qla4xxx_host_reset,
161 .vendor_id = SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC,
164 static struct iscsi_transport qla4xxx_iscsi_transport = {
165 .owner = THIS_MODULE,
167 .caps = CAP_TEXT_NEGO |
168 CAP_DATA_PATH_OFFLOAD | CAP_HDRDGST |
169 CAP_DATADGST | CAP_LOGIN_OFFLOAD |
171 .attr_is_visible = ql4_attr_is_visible,
172 .create_session = qla4xxx_session_create,
173 .destroy_session = qla4xxx_session_destroy,
174 .start_conn = qla4xxx_conn_start,
175 .create_conn = qla4xxx_conn_create,
176 .bind_conn = qla4xxx_conn_bind,
177 .stop_conn = iscsi_conn_stop,
178 .destroy_conn = qla4xxx_conn_destroy,
179 .set_param = iscsi_set_param,
180 .get_conn_param = qla4xxx_conn_get_param,
181 .get_session_param = iscsi_session_get_param,
182 .get_ep_param = qla4xxx_get_ep_param,
183 .ep_connect = qla4xxx_ep_connect,
184 .ep_poll = qla4xxx_ep_poll,
185 .ep_disconnect = qla4xxx_ep_disconnect,
186 .get_stats = qla4xxx_conn_get_stats,
187 .send_pdu = iscsi_conn_send_pdu,
188 .xmit_task = qla4xxx_task_xmit,
189 .cleanup_task = qla4xxx_task_cleanup,
190 .alloc_pdu = qla4xxx_alloc_pdu,
192 .get_host_param = qla4xxx_host_get_param,
193 .set_iface_param = qla4xxx_iface_set_param,
194 .get_iface_param = qla4xxx_get_iface_param,
195 .bsg_request = qla4xxx_bsg_request,
198 static struct scsi_transport_template *qla4xxx_scsi_transport;
200 static umode_t ql4_attr_is_visible(int param_type, int param)
202 switch (param_type) {
203 case ISCSI_HOST_PARAM:
205 case ISCSI_HOST_PARAM_HWADDRESS:
206 case ISCSI_HOST_PARAM_IPADDRESS:
207 case ISCSI_HOST_PARAM_INITIATOR_NAME:
214 case ISCSI_PARAM_PERSISTENT_ADDRESS:
215 case ISCSI_PARAM_PERSISTENT_PORT:
216 case ISCSI_PARAM_CONN_ADDRESS:
217 case ISCSI_PARAM_CONN_PORT:
218 case ISCSI_PARAM_TARGET_NAME:
219 case ISCSI_PARAM_TPGT:
220 case ISCSI_PARAM_TARGET_ALIAS:
221 case ISCSI_PARAM_MAX_BURST:
222 case ISCSI_PARAM_MAX_R2T:
223 case ISCSI_PARAM_FIRST_BURST:
224 case ISCSI_PARAM_MAX_RECV_DLENGTH:
225 case ISCSI_PARAM_MAX_XMIT_DLENGTH:
226 case ISCSI_PARAM_IFACE_NAME:
231 case ISCSI_NET_PARAM:
233 case ISCSI_NET_PARAM_IPV4_ADDR:
234 case ISCSI_NET_PARAM_IPV4_SUBNET:
235 case ISCSI_NET_PARAM_IPV4_GW:
236 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
237 case ISCSI_NET_PARAM_IFACE_ENABLE:
238 case ISCSI_NET_PARAM_IPV6_LINKLOCAL:
239 case ISCSI_NET_PARAM_IPV6_ADDR:
240 case ISCSI_NET_PARAM_IPV6_ROUTER:
241 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG:
242 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG:
243 case ISCSI_NET_PARAM_VLAN_ID:
244 case ISCSI_NET_PARAM_VLAN_PRIORITY:
245 case ISCSI_NET_PARAM_VLAN_ENABLED:
246 case ISCSI_NET_PARAM_MTU:
247 case ISCSI_NET_PARAM_PORT:
257 static int qla4xxx_get_iface_param(struct iscsi_iface *iface,
258 enum iscsi_param_type param_type,
259 int param, char *buf)
261 struct Scsi_Host *shost = iscsi_iface_to_shost(iface);
262 struct scsi_qla_host *ha = to_qla_host(shost);
265 if (param_type != ISCSI_NET_PARAM)
269 case ISCSI_NET_PARAM_IPV4_ADDR:
270 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address);
272 case ISCSI_NET_PARAM_IPV4_SUBNET:
273 len = sprintf(buf, "%pI4\n", &ha->ip_config.subnet_mask);
275 case ISCSI_NET_PARAM_IPV4_GW:
276 len = sprintf(buf, "%pI4\n", &ha->ip_config.gateway);
278 case ISCSI_NET_PARAM_IFACE_ENABLE:
279 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
280 len = sprintf(buf, "%s\n",
281 (ha->ip_config.ipv4_options &
282 IPOPT_IPV4_PROTOCOL_ENABLE) ?
283 "enabled" : "disabled");
284 else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6)
285 len = sprintf(buf, "%s\n",
286 (ha->ip_config.ipv6_options &
287 IPV6_OPT_IPV6_PROTOCOL_ENABLE) ?
288 "enabled" : "disabled");
290 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
291 len = sprintf(buf, "%s\n",
292 (ha->ip_config.tcp_options & TCPOPT_DHCP_ENABLE) ?
295 case ISCSI_NET_PARAM_IPV6_ADDR:
296 if (iface->iface_num == 0)
297 len = sprintf(buf, "%pI6\n", &ha->ip_config.ipv6_addr0);
298 if (iface->iface_num == 1)
299 len = sprintf(buf, "%pI6\n", &ha->ip_config.ipv6_addr1);
301 case ISCSI_NET_PARAM_IPV6_LINKLOCAL:
302 len = sprintf(buf, "%pI6\n",
303 &ha->ip_config.ipv6_link_local_addr);
305 case ISCSI_NET_PARAM_IPV6_ROUTER:
306 len = sprintf(buf, "%pI6\n",
307 &ha->ip_config.ipv6_default_router_addr);
309 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG:
310 len = sprintf(buf, "%s\n",
311 (ha->ip_config.ipv6_addl_options &
312 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE) ?
315 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG:
316 len = sprintf(buf, "%s\n",
317 (ha->ip_config.ipv6_addl_options &
318 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR) ?
321 case ISCSI_NET_PARAM_VLAN_ID:
322 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
323 len = sprintf(buf, "%d\n",
324 (ha->ip_config.ipv4_vlan_tag &
326 else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6)
327 len = sprintf(buf, "%d\n",
328 (ha->ip_config.ipv6_vlan_tag &
331 case ISCSI_NET_PARAM_VLAN_PRIORITY:
332 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
333 len = sprintf(buf, "%d\n",
334 ((ha->ip_config.ipv4_vlan_tag >> 13) &
335 ISCSI_MAX_VLAN_PRIORITY));
336 else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6)
337 len = sprintf(buf, "%d\n",
338 ((ha->ip_config.ipv6_vlan_tag >> 13) &
339 ISCSI_MAX_VLAN_PRIORITY));
341 case ISCSI_NET_PARAM_VLAN_ENABLED:
342 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
343 len = sprintf(buf, "%s\n",
344 (ha->ip_config.ipv4_options &
345 IPOPT_VLAN_TAGGING_ENABLE) ?
346 "enabled" : "disabled");
347 else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6)
348 len = sprintf(buf, "%s\n",
349 (ha->ip_config.ipv6_options &
350 IPV6_OPT_VLAN_TAGGING_ENABLE) ?
351 "enabled" : "disabled");
353 case ISCSI_NET_PARAM_MTU:
354 len = sprintf(buf, "%d\n", ha->ip_config.eth_mtu_size);
356 case ISCSI_NET_PARAM_PORT:
357 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
358 len = sprintf(buf, "%d\n", ha->ip_config.ipv4_port);
359 else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6)
360 len = sprintf(buf, "%d\n", ha->ip_config.ipv6_port);
369 static struct iscsi_endpoint *
370 qla4xxx_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr,
374 struct iscsi_endpoint *ep;
375 struct qla_endpoint *qla_ep;
376 struct scsi_qla_host *ha;
377 struct sockaddr_in *addr;
378 struct sockaddr_in6 *addr6;
380 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
383 printk(KERN_ERR "%s: shost is NULL\n",
388 ha = iscsi_host_priv(shost);
390 ep = iscsi_create_endpoint(sizeof(struct qla_endpoint));
396 qla_ep = ep->dd_data;
397 memset(qla_ep, 0, sizeof(struct qla_endpoint));
398 if (dst_addr->sa_family == AF_INET) {
399 memcpy(&qla_ep->dst_addr, dst_addr, sizeof(struct sockaddr_in));
400 addr = (struct sockaddr_in *)&qla_ep->dst_addr;
401 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI4\n", __func__,
402 (char *)&addr->sin_addr));
403 } else if (dst_addr->sa_family == AF_INET6) {
404 memcpy(&qla_ep->dst_addr, dst_addr,
405 sizeof(struct sockaddr_in6));
406 addr6 = (struct sockaddr_in6 *)&qla_ep->dst_addr;
407 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI6\n", __func__,
408 (char *)&addr6->sin6_addr));
411 qla_ep->host = shost;
416 static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms)
418 struct qla_endpoint *qla_ep;
419 struct scsi_qla_host *ha;
422 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
423 qla_ep = ep->dd_data;
424 ha = to_qla_host(qla_ep->host);
426 if (adapter_up(ha) && !test_bit(AF_BUILD_DDB_LIST, &ha->flags))
432 static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep)
434 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
435 iscsi_destroy_endpoint(ep);
438 static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep,
439 enum iscsi_param param,
442 struct qla_endpoint *qla_ep = ep->dd_data;
443 struct sockaddr *dst_addr;
445 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
448 case ISCSI_PARAM_CONN_PORT:
449 case ISCSI_PARAM_CONN_ADDRESS:
453 dst_addr = (struct sockaddr *)&qla_ep->dst_addr;
457 return iscsi_conn_get_addr_param((struct sockaddr_storage *)
458 &qla_ep->dst_addr, param, buf);
464 static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn,
465 struct iscsi_stats *stats)
467 struct iscsi_session *sess;
468 struct iscsi_cls_session *cls_sess;
469 struct ddb_entry *ddb_entry;
470 struct scsi_qla_host *ha;
471 struct ql_iscsi_stats *ql_iscsi_stats;
474 dma_addr_t iscsi_stats_dma;
476 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
478 cls_sess = iscsi_conn_to_session(cls_conn);
479 sess = cls_sess->dd_data;
480 ddb_entry = sess->dd_data;
483 stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats));
484 /* Allocate memory */
485 ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size,
486 &iscsi_stats_dma, GFP_KERNEL);
487 if (!ql_iscsi_stats) {
488 ql4_printk(KERN_ERR, ha,
489 "Unable to allocate memory for iscsi stats\n");
493 ret = qla4xxx_get_mgmt_data(ha, ddb_entry->fw_ddb_index, stats_size,
495 if (ret != QLA_SUCCESS) {
496 ql4_printk(KERN_ERR, ha,
497 "Unable to retreive iscsi stats\n");
502 stats->txdata_octets = le64_to_cpu(ql_iscsi_stats->tx_data_octets);
503 stats->rxdata_octets = le64_to_cpu(ql_iscsi_stats->rx_data_octets);
505 stats->noptx_pdus = le32_to_cpu(ql_iscsi_stats->tx_nopout_pdus);
506 stats->scsicmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_cmd_pdus);
507 stats->tmfcmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_tmf_cmd_pdus);
508 stats->login_pdus = le32_to_cpu(ql_iscsi_stats->tx_login_cmd_pdus);
509 stats->text_pdus = le32_to_cpu(ql_iscsi_stats->tx_text_cmd_pdus);
510 stats->dataout_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_write_pdus);
511 stats->logout_pdus = le32_to_cpu(ql_iscsi_stats->tx_logout_cmd_pdus);
512 stats->snack_pdus = le32_to_cpu(ql_iscsi_stats->tx_snack_req_pdus);
514 stats->noprx_pdus = le32_to_cpu(ql_iscsi_stats->rx_nopin_pdus);
515 stats->scsirsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_resp_pdus);
516 stats->tmfrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_tmf_resp_pdus);
517 stats->textrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_text_resp_pdus);
518 stats->datain_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_read_pdus);
519 stats->logoutrsp_pdus =
520 le32_to_cpu(ql_iscsi_stats->rx_logout_resp_pdus);
521 stats->r2t_pdus = le32_to_cpu(ql_iscsi_stats->rx_r2t_pdus);
522 stats->async_pdus = le32_to_cpu(ql_iscsi_stats->rx_async_pdus);
523 stats->rjt_pdus = le32_to_cpu(ql_iscsi_stats->rx_reject_pdus);
526 dma_free_coherent(&ha->pdev->dev, stats_size, ql_iscsi_stats,
532 static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc)
534 struct iscsi_cls_session *session;
535 struct iscsi_session *sess;
537 enum blk_eh_timer_return ret = BLK_EH_NOT_HANDLED;
539 session = starget_to_session(scsi_target(sc->device));
540 sess = session->dd_data;
542 spin_lock_irqsave(&session->lock, flags);
543 if (session->state == ISCSI_SESSION_FAILED)
544 ret = BLK_EH_RESET_TIMER;
545 spin_unlock_irqrestore(&session->lock, flags);
550 static int qla4xxx_host_get_param(struct Scsi_Host *shost,
551 enum iscsi_host_param param, char *buf)
553 struct scsi_qla_host *ha = to_qla_host(shost);
557 case ISCSI_HOST_PARAM_HWADDRESS:
558 len = sysfs_format_mac(buf, ha->my_mac, MAC_ADDR_LEN);
560 case ISCSI_HOST_PARAM_IPADDRESS:
561 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address);
563 case ISCSI_HOST_PARAM_INITIATOR_NAME:
564 len = sprintf(buf, "%s\n", ha->name_string);
573 static void qla4xxx_create_ipv4_iface(struct scsi_qla_host *ha)
579 ha->iface_ipv4 = iscsi_create_iface(ha->host,
580 &qla4xxx_iscsi_transport,
581 ISCSI_IFACE_TYPE_IPV4, 0, 0);
583 ql4_printk(KERN_ERR, ha, "Could not create IPv4 iSCSI "
587 static void qla4xxx_create_ipv6_iface(struct scsi_qla_host *ha)
589 if (!ha->iface_ipv6_0)
591 ha->iface_ipv6_0 = iscsi_create_iface(ha->host,
592 &qla4xxx_iscsi_transport,
593 ISCSI_IFACE_TYPE_IPV6, 0,
595 if (!ha->iface_ipv6_0)
596 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI "
599 if (!ha->iface_ipv6_1)
601 ha->iface_ipv6_1 = iscsi_create_iface(ha->host,
602 &qla4xxx_iscsi_transport,
603 ISCSI_IFACE_TYPE_IPV6, 1,
605 if (!ha->iface_ipv6_1)
606 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI "
610 static void qla4xxx_create_ifaces(struct scsi_qla_host *ha)
612 if (ha->ip_config.ipv4_options & IPOPT_IPV4_PROTOCOL_ENABLE)
613 qla4xxx_create_ipv4_iface(ha);
615 if (ha->ip_config.ipv6_options & IPV6_OPT_IPV6_PROTOCOL_ENABLE)
616 qla4xxx_create_ipv6_iface(ha);
619 static void qla4xxx_destroy_ipv4_iface(struct scsi_qla_host *ha)
621 if (ha->iface_ipv4) {
622 iscsi_destroy_iface(ha->iface_ipv4);
623 ha->iface_ipv4 = NULL;
627 static void qla4xxx_destroy_ipv6_iface(struct scsi_qla_host *ha)
629 if (ha->iface_ipv6_0) {
630 iscsi_destroy_iface(ha->iface_ipv6_0);
631 ha->iface_ipv6_0 = NULL;
633 if (ha->iface_ipv6_1) {
634 iscsi_destroy_iface(ha->iface_ipv6_1);
635 ha->iface_ipv6_1 = NULL;
639 static void qla4xxx_destroy_ifaces(struct scsi_qla_host *ha)
641 qla4xxx_destroy_ipv4_iface(ha);
642 qla4xxx_destroy_ipv6_iface(ha);
645 static void qla4xxx_set_ipv6(struct scsi_qla_host *ha,
646 struct iscsi_iface_param_info *iface_param,
647 struct addr_ctrl_blk *init_fw_cb)
650 * iface_num 0 is valid for IPv6 Addr, linklocal, router, autocfg.
651 * iface_num 1 is valid only for IPv6 Addr.
653 switch (iface_param->param) {
654 case ISCSI_NET_PARAM_IPV6_ADDR:
655 if (iface_param->iface_num & 0x1)
657 memcpy(init_fw_cb->ipv6_addr1, iface_param->value,
658 sizeof(init_fw_cb->ipv6_addr1));
661 memcpy(init_fw_cb->ipv6_addr0, iface_param->value,
662 sizeof(init_fw_cb->ipv6_addr0));
664 case ISCSI_NET_PARAM_IPV6_LINKLOCAL:
665 if (iface_param->iface_num & 0x1)
667 memcpy(init_fw_cb->ipv6_if_id, &iface_param->value[8],
668 sizeof(init_fw_cb->ipv6_if_id));
670 case ISCSI_NET_PARAM_IPV6_ROUTER:
671 if (iface_param->iface_num & 0x1)
673 memcpy(init_fw_cb->ipv6_dflt_rtr_addr, iface_param->value,
674 sizeof(init_fw_cb->ipv6_dflt_rtr_addr));
676 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG:
677 /* Autocfg applies to even interface */
678 if (iface_param->iface_num & 0x1)
681 if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_DISABLE)
682 init_fw_cb->ipv6_addtl_opts &=
684 ~IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE);
685 else if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_ND_ENABLE)
686 init_fw_cb->ipv6_addtl_opts |=
688 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE);
690 ql4_printk(KERN_ERR, ha, "Invalid autocfg setting for "
693 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG:
694 /* Autocfg applies to even interface */
695 if (iface_param->iface_num & 0x1)
698 if (iface_param->value[0] ==
699 ISCSI_IPV6_LINKLOCAL_AUTOCFG_ENABLE)
700 init_fw_cb->ipv6_addtl_opts |= cpu_to_le16(
701 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR);
702 else if (iface_param->value[0] ==
703 ISCSI_IPV6_LINKLOCAL_AUTOCFG_DISABLE)
704 init_fw_cb->ipv6_addtl_opts &= cpu_to_le16(
705 ~IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR);
707 ql4_printk(KERN_ERR, ha, "Invalid autocfg setting for "
708 "IPv6 linklocal addr\n");
710 case ISCSI_NET_PARAM_IPV6_ROUTER_AUTOCFG:
711 /* Autocfg applies to even interface */
712 if (iface_param->iface_num & 0x1)
715 if (iface_param->value[0] == ISCSI_IPV6_ROUTER_AUTOCFG_ENABLE)
716 memset(init_fw_cb->ipv6_dflt_rtr_addr, 0,
717 sizeof(init_fw_cb->ipv6_dflt_rtr_addr));
719 case ISCSI_NET_PARAM_IFACE_ENABLE:
720 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) {
721 init_fw_cb->ipv6_opts |=
722 cpu_to_le16(IPV6_OPT_IPV6_PROTOCOL_ENABLE);
723 qla4xxx_create_ipv6_iface(ha);
725 init_fw_cb->ipv6_opts &=
726 cpu_to_le16(~IPV6_OPT_IPV6_PROTOCOL_ENABLE &
728 qla4xxx_destroy_ipv6_iface(ha);
731 case ISCSI_NET_PARAM_VLAN_TAG:
732 if (iface_param->len != sizeof(init_fw_cb->ipv6_vlan_tag))
734 init_fw_cb->ipv6_vlan_tag =
735 cpu_to_be16(*(uint16_t *)iface_param->value);
737 case ISCSI_NET_PARAM_VLAN_ENABLED:
738 if (iface_param->value[0] == ISCSI_VLAN_ENABLE)
739 init_fw_cb->ipv6_opts |=
740 cpu_to_le16(IPV6_OPT_VLAN_TAGGING_ENABLE);
742 init_fw_cb->ipv6_opts &=
743 cpu_to_le16(~IPV6_OPT_VLAN_TAGGING_ENABLE);
745 case ISCSI_NET_PARAM_MTU:
746 init_fw_cb->eth_mtu_size =
747 cpu_to_le16(*(uint16_t *)iface_param->value);
749 case ISCSI_NET_PARAM_PORT:
750 /* Autocfg applies to even interface */
751 if (iface_param->iface_num & 0x1)
754 init_fw_cb->ipv6_port =
755 cpu_to_le16(*(uint16_t *)iface_param->value);
758 ql4_printk(KERN_ERR, ha, "Unknown IPv6 param = %d\n",
764 static void qla4xxx_set_ipv4(struct scsi_qla_host *ha,
765 struct iscsi_iface_param_info *iface_param,
766 struct addr_ctrl_blk *init_fw_cb)
768 switch (iface_param->param) {
769 case ISCSI_NET_PARAM_IPV4_ADDR:
770 memcpy(init_fw_cb->ipv4_addr, iface_param->value,
771 sizeof(init_fw_cb->ipv4_addr));
773 case ISCSI_NET_PARAM_IPV4_SUBNET:
774 memcpy(init_fw_cb->ipv4_subnet, iface_param->value,
775 sizeof(init_fw_cb->ipv4_subnet));
777 case ISCSI_NET_PARAM_IPV4_GW:
778 memcpy(init_fw_cb->ipv4_gw_addr, iface_param->value,
779 sizeof(init_fw_cb->ipv4_gw_addr));
781 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
782 if (iface_param->value[0] == ISCSI_BOOTPROTO_DHCP)
783 init_fw_cb->ipv4_tcp_opts |=
784 cpu_to_le16(TCPOPT_DHCP_ENABLE);
785 else if (iface_param->value[0] == ISCSI_BOOTPROTO_STATIC)
786 init_fw_cb->ipv4_tcp_opts &=
787 cpu_to_le16(~TCPOPT_DHCP_ENABLE);
789 ql4_printk(KERN_ERR, ha, "Invalid IPv4 bootproto\n");
791 case ISCSI_NET_PARAM_IFACE_ENABLE:
792 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) {
793 init_fw_cb->ipv4_ip_opts |=
794 cpu_to_le16(IPOPT_IPV4_PROTOCOL_ENABLE);
795 qla4xxx_create_ipv4_iface(ha);
797 init_fw_cb->ipv4_ip_opts &=
798 cpu_to_le16(~IPOPT_IPV4_PROTOCOL_ENABLE &
800 qla4xxx_destroy_ipv4_iface(ha);
803 case ISCSI_NET_PARAM_VLAN_TAG:
804 if (iface_param->len != sizeof(init_fw_cb->ipv4_vlan_tag))
806 init_fw_cb->ipv4_vlan_tag =
807 cpu_to_be16(*(uint16_t *)iface_param->value);
809 case ISCSI_NET_PARAM_VLAN_ENABLED:
810 if (iface_param->value[0] == ISCSI_VLAN_ENABLE)
811 init_fw_cb->ipv4_ip_opts |=
812 cpu_to_le16(IPOPT_VLAN_TAGGING_ENABLE);
814 init_fw_cb->ipv4_ip_opts &=
815 cpu_to_le16(~IPOPT_VLAN_TAGGING_ENABLE);
817 case ISCSI_NET_PARAM_MTU:
818 init_fw_cb->eth_mtu_size =
819 cpu_to_le16(*(uint16_t *)iface_param->value);
821 case ISCSI_NET_PARAM_PORT:
822 init_fw_cb->ipv4_port =
823 cpu_to_le16(*(uint16_t *)iface_param->value);
826 ql4_printk(KERN_ERR, ha, "Unknown IPv4 param = %d\n",
833 qla4xxx_initcb_to_acb(struct addr_ctrl_blk *init_fw_cb)
835 struct addr_ctrl_blk_def *acb;
836 acb = (struct addr_ctrl_blk_def *)init_fw_cb;
837 memset(acb->reserved1, 0, sizeof(acb->reserved1));
838 memset(acb->reserved2, 0, sizeof(acb->reserved2));
839 memset(acb->reserved3, 0, sizeof(acb->reserved3));
840 memset(acb->reserved4, 0, sizeof(acb->reserved4));
841 memset(acb->reserved5, 0, sizeof(acb->reserved5));
842 memset(acb->reserved6, 0, sizeof(acb->reserved6));
843 memset(acb->reserved7, 0, sizeof(acb->reserved7));
844 memset(acb->reserved8, 0, sizeof(acb->reserved8));
845 memset(acb->reserved9, 0, sizeof(acb->reserved9));
846 memset(acb->reserved10, 0, sizeof(acb->reserved10));
847 memset(acb->reserved11, 0, sizeof(acb->reserved11));
848 memset(acb->reserved12, 0, sizeof(acb->reserved12));
849 memset(acb->reserved13, 0, sizeof(acb->reserved13));
850 memset(acb->reserved14, 0, sizeof(acb->reserved14));
851 memset(acb->reserved15, 0, sizeof(acb->reserved15));
855 qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data, uint32_t len)
857 struct scsi_qla_host *ha = to_qla_host(shost);
859 struct iscsi_iface_param_info *iface_param = NULL;
860 struct addr_ctrl_blk *init_fw_cb = NULL;
861 dma_addr_t init_fw_cb_dma;
862 uint32_t mbox_cmd[MBOX_REG_COUNT];
863 uint32_t mbox_sts[MBOX_REG_COUNT];
867 init_fw_cb = dma_alloc_coherent(&ha->pdev->dev,
868 sizeof(struct addr_ctrl_blk),
869 &init_fw_cb_dma, GFP_KERNEL);
871 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc init_cb\n",
876 memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk));
877 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
878 memset(&mbox_sts, 0, sizeof(mbox_sts));
880 if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma)) {
881 ql4_printk(KERN_ERR, ha, "%s: get ifcb failed\n", __func__);
883 goto exit_init_fw_cb;
886 nla_for_each_attr(attr, data, len, rem) {
887 iface_param = nla_data(attr);
889 if (iface_param->param_type != ISCSI_NET_PARAM)
892 switch (iface_param->iface_type) {
893 case ISCSI_IFACE_TYPE_IPV4:
894 switch (iface_param->iface_num) {
896 qla4xxx_set_ipv4(ha, iface_param, init_fw_cb);
899 /* Cannot have more than one IPv4 interface */
900 ql4_printk(KERN_ERR, ha, "Invalid IPv4 iface "
902 iface_param->iface_num);
906 case ISCSI_IFACE_TYPE_IPV6:
907 switch (iface_param->iface_num) {
910 qla4xxx_set_ipv6(ha, iface_param, init_fw_cb);
913 /* Cannot have more than two IPv6 interface */
914 ql4_printk(KERN_ERR, ha, "Invalid IPv6 iface "
916 iface_param->iface_num);
921 ql4_printk(KERN_ERR, ha, "Invalid iface type\n");
926 init_fw_cb->cookie = cpu_to_le32(0x11BEAD5A);
928 rval = qla4xxx_set_flash(ha, init_fw_cb_dma, FLASH_SEGMENT_IFCB,
929 sizeof(struct addr_ctrl_blk),
930 FLASH_OPT_RMW_COMMIT);
931 if (rval != QLA_SUCCESS) {
932 ql4_printk(KERN_ERR, ha, "%s: set flash mbx failed\n",
935 goto exit_init_fw_cb;
938 rval = qla4xxx_disable_acb(ha);
939 if (rval != QLA_SUCCESS) {
940 ql4_printk(KERN_ERR, ha, "%s: disable acb mbx failed\n",
943 goto exit_init_fw_cb;
946 wait_for_completion_timeout(&ha->disable_acb_comp,
947 DISABLE_ACB_TOV * HZ);
949 qla4xxx_initcb_to_acb(init_fw_cb);
951 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma);
952 if (rval != QLA_SUCCESS) {
953 ql4_printk(KERN_ERR, ha, "%s: set acb mbx failed\n",
956 goto exit_init_fw_cb;
959 memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk));
960 qla4xxx_update_local_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb,
964 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk),
965 init_fw_cb, init_fw_cb_dma);
970 static int qla4xxx_conn_get_param(struct iscsi_cls_conn *cls_conn,
971 enum iscsi_param param, char *buf)
973 struct iscsi_conn *conn;
974 struct qla_conn *qla_conn;
975 struct sockaddr *dst_addr;
978 conn = cls_conn->dd_data;
979 qla_conn = conn->dd_data;
980 dst_addr = &qla_conn->qla_ep->dst_addr;
983 case ISCSI_PARAM_CONN_PORT:
984 case ISCSI_PARAM_CONN_ADDRESS:
985 return iscsi_conn_get_addr_param((struct sockaddr_storage *)
986 dst_addr, param, buf);
988 return iscsi_conn_get_param(cls_conn, param, buf);
995 int qla4xxx_get_ddb_index(struct scsi_qla_host *ha, uint16_t *ddb_index)
997 uint32_t mbx_sts = 0;
998 uint16_t tmp_ddb_index;
1002 tmp_ddb_index = find_first_zero_bit(ha->ddb_idx_map, MAX_DDB_ENTRIES);
1004 if (tmp_ddb_index >= MAX_DDB_ENTRIES) {
1005 DEBUG2(ql4_printk(KERN_INFO, ha,
1006 "Free DDB index not available\n"));
1008 goto exit_get_ddb_index;
1011 if (test_and_set_bit(tmp_ddb_index, ha->ddb_idx_map))
1014 DEBUG2(ql4_printk(KERN_INFO, ha,
1015 "Found a free DDB index at %d\n", tmp_ddb_index));
1016 ret = qla4xxx_req_ddb_entry(ha, tmp_ddb_index, &mbx_sts);
1017 if (ret == QLA_ERROR) {
1018 if (mbx_sts == MBOX_STS_COMMAND_ERROR) {
1019 ql4_printk(KERN_INFO, ha,
1020 "DDB index = %d not available trying next\n",
1024 DEBUG2(ql4_printk(KERN_INFO, ha,
1025 "Free FW DDB not available\n"));
1028 *ddb_index = tmp_ddb_index;
1034 static int qla4xxx_match_ipaddress(struct scsi_qla_host *ha,
1035 struct ddb_entry *ddb_entry,
1036 char *existing_ipaddr,
1039 uint8_t dst_ipaddr[IPv6_ADDR_LEN];
1040 char formatted_ipaddr[DDB_IPADDR_LEN];
1041 int status = QLA_SUCCESS, ret = 0;
1043 if (ddb_entry->fw_ddb_entry.options & DDB_OPT_IPV6_DEVICE) {
1044 ret = in6_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr,
1050 ret = sprintf(formatted_ipaddr, "%pI6", dst_ipaddr);
1052 ret = in4_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr,
1058 ret = sprintf(formatted_ipaddr, "%pI4", dst_ipaddr);
1061 if (strcmp(existing_ipaddr, formatted_ipaddr))
1068 static int qla4xxx_match_fwdb_session(struct scsi_qla_host *ha,
1069 struct iscsi_cls_conn *cls_conn)
1071 int idx = 0, max_ddbs, rval;
1072 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
1073 struct iscsi_session *sess, *existing_sess;
1074 struct iscsi_conn *conn, *existing_conn;
1075 struct ddb_entry *ddb_entry;
1077 sess = cls_sess->dd_data;
1078 conn = cls_conn->dd_data;
1080 if (sess->targetname == NULL ||
1081 conn->persistent_address == NULL ||
1082 conn->persistent_port == 0)
1085 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
1088 for (idx = 0; idx < max_ddbs; idx++) {
1089 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
1090 if (ddb_entry == NULL)
1093 if (ddb_entry->ddb_type != FLASH_DDB)
1096 existing_sess = ddb_entry->sess->dd_data;
1097 existing_conn = ddb_entry->conn->dd_data;
1099 if (existing_sess->targetname == NULL ||
1100 existing_conn->persistent_address == NULL ||
1101 existing_conn->persistent_port == 0)
1104 DEBUG2(ql4_printk(KERN_INFO, ha,
1105 "IQN = %s User IQN = %s\n",
1106 existing_sess->targetname,
1109 DEBUG2(ql4_printk(KERN_INFO, ha,
1110 "IP = %s User IP = %s\n",
1111 existing_conn->persistent_address,
1112 conn->persistent_address));
1114 DEBUG2(ql4_printk(KERN_INFO, ha,
1115 "Port = %d User Port = %d\n",
1116 existing_conn->persistent_port,
1117 conn->persistent_port));
1119 if (strcmp(existing_sess->targetname, sess->targetname))
1121 rval = qla4xxx_match_ipaddress(ha, ddb_entry,
1122 existing_conn->persistent_address,
1123 conn->persistent_address);
1124 if (rval == QLA_ERROR)
1126 if (existing_conn->persistent_port != conn->persistent_port)
1131 if (idx == max_ddbs)
1134 DEBUG2(ql4_printk(KERN_INFO, ha,
1135 "Match found in fwdb sessions\n"));
1139 static struct iscsi_cls_session *
1140 qla4xxx_session_create(struct iscsi_endpoint *ep,
1141 uint16_t cmds_max, uint16_t qdepth,
1142 uint32_t initial_cmdsn)
1144 struct iscsi_cls_session *cls_sess;
1145 struct scsi_qla_host *ha;
1146 struct qla_endpoint *qla_ep;
1147 struct ddb_entry *ddb_entry;
1149 struct iscsi_session *sess;
1150 struct sockaddr *dst_addr;
1153 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
1155 printk(KERN_ERR "qla4xxx: missing ep.\n");
1159 qla_ep = ep->dd_data;
1160 dst_addr = (struct sockaddr *)&qla_ep->dst_addr;
1161 ha = to_qla_host(qla_ep->host);
1163 ret = qla4xxx_get_ddb_index(ha, &ddb_index);
1164 if (ret == QLA_ERROR)
1167 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, qla_ep->host,
1168 cmds_max, sizeof(struct ddb_entry),
1169 sizeof(struct ql4_task_data),
1170 initial_cmdsn, ddb_index);
1174 sess = cls_sess->dd_data;
1175 ddb_entry = sess->dd_data;
1176 ddb_entry->fw_ddb_index = ddb_index;
1177 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE;
1179 ddb_entry->sess = cls_sess;
1180 ddb_entry->unblock_sess = qla4xxx_unblock_ddb;
1181 ddb_entry->ddb_change = qla4xxx_ddb_change;
1182 cls_sess->recovery_tmo = ql4xsess_recovery_tmo;
1183 ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry;
1189 static void qla4xxx_session_destroy(struct iscsi_cls_session *cls_sess)
1191 struct iscsi_session *sess;
1192 struct ddb_entry *ddb_entry;
1193 struct scsi_qla_host *ha;
1194 unsigned long flags;
1196 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
1197 sess = cls_sess->dd_data;
1198 ddb_entry = sess->dd_data;
1201 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
1203 spin_lock_irqsave(&ha->hardware_lock, flags);
1204 qla4xxx_free_ddb(ha, ddb_entry);
1205 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1206 iscsi_session_teardown(cls_sess);
1209 static struct iscsi_cls_conn *
1210 qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx)
1212 struct iscsi_cls_conn *cls_conn;
1213 struct iscsi_session *sess;
1214 struct ddb_entry *ddb_entry;
1216 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
1217 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn),
1222 sess = cls_sess->dd_data;
1223 ddb_entry = sess->dd_data;
1224 ddb_entry->conn = cls_conn;
1229 static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session,
1230 struct iscsi_cls_conn *cls_conn,
1231 uint64_t transport_fd, int is_leading)
1233 struct iscsi_conn *conn;
1234 struct qla_conn *qla_conn;
1235 struct iscsi_endpoint *ep;
1237 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
1239 if (iscsi_conn_bind(cls_session, cls_conn, is_leading))
1241 ep = iscsi_lookup_endpoint(transport_fd);
1242 conn = cls_conn->dd_data;
1243 qla_conn = conn->dd_data;
1244 qla_conn->qla_ep = ep->dd_data;
1248 static int qla4xxx_conn_start(struct iscsi_cls_conn *cls_conn)
1250 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
1251 struct iscsi_session *sess;
1252 struct ddb_entry *ddb_entry;
1253 struct scsi_qla_host *ha;
1254 struct dev_db_entry *fw_ddb_entry = NULL;
1255 dma_addr_t fw_ddb_entry_dma;
1256 uint32_t mbx_sts = 0;
1258 int status = QLA_SUCCESS;
1260 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
1261 sess = cls_sess->dd_data;
1262 ddb_entry = sess->dd_data;
1265 /* Check if we have matching FW DDB, if yes then do not
1266 * login to this target. This could cause target to logout previous
1269 ret = qla4xxx_match_fwdb_session(ha, cls_conn);
1270 if (ret == QLA_SUCCESS) {
1271 ql4_printk(KERN_INFO, ha,
1272 "Session already exist in FW.\n");
1274 goto exit_conn_start;
1277 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
1278 &fw_ddb_entry_dma, GFP_KERNEL);
1279 if (!fw_ddb_entry) {
1280 ql4_printk(KERN_ERR, ha,
1281 "%s: Unable to allocate dma buffer\n", __func__);
1283 goto exit_conn_start;
1286 ret = qla4xxx_set_param_ddbentry(ha, ddb_entry, cls_conn, &mbx_sts);
1288 /* If iscsid is stopped and started then no need to do
1289 * set param again since ddb state will be already
1290 * active and FW does not allow set ddb to an
1294 if (ddb_entry->fw_ddb_device_state ==
1295 DDB_DS_SESSION_ACTIVE) {
1296 ddb_entry->unblock_sess(ddb_entry->sess);
1297 goto exit_set_param;
1300 ql4_printk(KERN_ERR, ha, "%s: Failed set param for index[%d]\n",
1301 __func__, ddb_entry->fw_ddb_index);
1302 goto exit_conn_start;
1305 status = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index);
1306 if (status == QLA_ERROR) {
1307 ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__,
1310 goto exit_conn_start;
1313 if (ddb_entry->fw_ddb_device_state == DDB_DS_NO_CONNECTION_ACTIVE)
1314 ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS;
1316 DEBUG2(printk(KERN_INFO "%s: DDB state [%d]\n", __func__,
1317 ddb_entry->fw_ddb_device_state));
1324 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
1325 fw_ddb_entry, fw_ddb_entry_dma);
1329 static void qla4xxx_conn_destroy(struct iscsi_cls_conn *cls_conn)
1331 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
1332 struct iscsi_session *sess;
1333 struct scsi_qla_host *ha;
1334 struct ddb_entry *ddb_entry;
1337 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
1338 sess = cls_sess->dd_data;
1339 ddb_entry = sess->dd_data;
1342 options = LOGOUT_OPTION_CLOSE_SESSION;
1343 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR)
1344 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__);
1347 static void qla4xxx_task_work(struct work_struct *wdata)
1349 struct ql4_task_data *task_data;
1350 struct scsi_qla_host *ha;
1351 struct passthru_status *sts;
1352 struct iscsi_task *task;
1353 struct iscsi_hdr *hdr;
1356 struct iscsi_conn *conn;
1360 task_data = container_of(wdata, struct ql4_task_data, task_work);
1362 task = task_data->task;
1363 sts = &task_data->sts;
1364 hdr_len = sizeof(struct iscsi_hdr);
1366 DEBUG3(printk(KERN_INFO "Status returned\n"));
1367 DEBUG3(qla4xxx_dump_buffer(sts, 64));
1368 DEBUG3(printk(KERN_INFO "Response buffer"));
1369 DEBUG3(qla4xxx_dump_buffer(task_data->resp_buffer, 64));
1373 switch (sts->completionStatus) {
1374 case PASSTHRU_STATUS_COMPLETE:
1375 hdr = (struct iscsi_hdr *)task_data->resp_buffer;
1376 /* Assign back the itt in hdr, until we use the PREASSIGN_TAG */
1379 data = task_data->resp_buffer + hdr_len;
1380 data_len = task_data->resp_len - hdr_len;
1381 iscsi_complete_pdu(conn, hdr, data, data_len);
1384 ql4_printk(KERN_ERR, ha, "Passthru failed status = 0x%x\n",
1385 sts->completionStatus);
1391 static int qla4xxx_alloc_pdu(struct iscsi_task *task, uint8_t opcode)
1393 struct ql4_task_data *task_data;
1394 struct iscsi_session *sess;
1395 struct ddb_entry *ddb_entry;
1396 struct scsi_qla_host *ha;
1399 sess = task->conn->session;
1400 ddb_entry = sess->dd_data;
1402 task_data = task->dd_data;
1403 memset(task_data, 0, sizeof(struct ql4_task_data));
1406 ql4_printk(KERN_INFO, ha,
1407 "%s: SCSI Commands not implemented\n", __func__);
1411 hdr_len = sizeof(struct iscsi_hdr);
1413 task_data->task = task;
1415 if (task->data_count) {
1416 task_data->data_dma = dma_map_single(&ha->pdev->dev, task->data,
1421 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n",
1422 __func__, task->conn->max_recv_dlength, hdr_len));
1424 task_data->resp_len = task->conn->max_recv_dlength + hdr_len;
1425 task_data->resp_buffer = dma_alloc_coherent(&ha->pdev->dev,
1426 task_data->resp_len,
1427 &task_data->resp_dma,
1429 if (!task_data->resp_buffer)
1430 goto exit_alloc_pdu;
1432 task_data->req_len = task->data_count + hdr_len;
1433 task_data->req_buffer = dma_alloc_coherent(&ha->pdev->dev,
1435 &task_data->req_dma,
1437 if (!task_data->req_buffer)
1438 goto exit_alloc_pdu;
1440 task->hdr = task_data->req_buffer;
1442 INIT_WORK(&task_data->task_work, qla4xxx_task_work);
1447 if (task_data->resp_buffer)
1448 dma_free_coherent(&ha->pdev->dev, task_data->resp_len,
1449 task_data->resp_buffer, task_data->resp_dma);
1451 if (task_data->req_buffer)
1452 dma_free_coherent(&ha->pdev->dev, task_data->req_len,
1453 task_data->req_buffer, task_data->req_dma);
1457 static void qla4xxx_task_cleanup(struct iscsi_task *task)
1459 struct ql4_task_data *task_data;
1460 struct iscsi_session *sess;
1461 struct ddb_entry *ddb_entry;
1462 struct scsi_qla_host *ha;
1465 hdr_len = sizeof(struct iscsi_hdr);
1466 sess = task->conn->session;
1467 ddb_entry = sess->dd_data;
1469 task_data = task->dd_data;
1471 if (task->data_count) {
1472 dma_unmap_single(&ha->pdev->dev, task_data->data_dma,
1473 task->data_count, PCI_DMA_TODEVICE);
1476 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n",
1477 __func__, task->conn->max_recv_dlength, hdr_len));
1479 dma_free_coherent(&ha->pdev->dev, task_data->resp_len,
1480 task_data->resp_buffer, task_data->resp_dma);
1481 dma_free_coherent(&ha->pdev->dev, task_data->req_len,
1482 task_data->req_buffer, task_data->req_dma);
1486 static int qla4xxx_task_xmit(struct iscsi_task *task)
1488 struct scsi_cmnd *sc = task->sc;
1489 struct iscsi_session *sess = task->conn->session;
1490 struct ddb_entry *ddb_entry = sess->dd_data;
1491 struct scsi_qla_host *ha = ddb_entry->ha;
1494 return qla4xxx_send_passthru0(task);
1496 ql4_printk(KERN_INFO, ha, "%s: scsi cmd xmit not implemented\n",
1501 static void qla4xxx_copy_fwddb_param(struct scsi_qla_host *ha,
1502 struct dev_db_entry *fw_ddb_entry,
1503 struct iscsi_cls_session *cls_sess,
1504 struct iscsi_cls_conn *cls_conn)
1507 struct iscsi_session *sess;
1508 struct iscsi_conn *conn;
1509 char ip_addr[DDB_IPADDR_LEN];
1510 uint16_t options = 0;
1512 sess = cls_sess->dd_data;
1513 conn = cls_conn->dd_data;
1515 conn->max_recv_dlength = BYTE_UNITS *
1516 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len);
1518 conn->max_xmit_dlength = BYTE_UNITS *
1519 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len);
1521 sess->initial_r2t_en =
1522 (BIT_10 & le16_to_cpu(fw_ddb_entry->iscsi_options));
1524 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t);
1526 sess->imm_data_en = (BIT_11 & le16_to_cpu(fw_ddb_entry->iscsi_options));
1528 sess->first_burst = BYTE_UNITS *
1529 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len);
1531 sess->max_burst = BYTE_UNITS *
1532 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len);
1534 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
1536 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain);
1538 conn->persistent_port = le16_to_cpu(fw_ddb_entry->port);
1540 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
1542 options = le16_to_cpu(fw_ddb_entry->options);
1543 if (options & DDB_OPT_IPV6_DEVICE)
1544 sprintf(ip_addr, "%pI6", fw_ddb_entry->ip_addr);
1546 sprintf(ip_addr, "%pI4", fw_ddb_entry->ip_addr);
1548 iscsi_set_param(cls_conn, ISCSI_PARAM_TARGET_NAME,
1549 (char *)fw_ddb_entry->iscsi_name, buflen);
1550 iscsi_set_param(cls_conn, ISCSI_PARAM_INITIATOR_NAME,
1551 (char *)ha->name_string, buflen);
1552 iscsi_set_param(cls_conn, ISCSI_PARAM_PERSISTENT_ADDRESS,
1553 (char *)ip_addr, buflen);
1556 void qla4xxx_update_session_conn_fwddb_param(struct scsi_qla_host *ha,
1557 struct ddb_entry *ddb_entry)
1559 struct iscsi_cls_session *cls_sess;
1560 struct iscsi_cls_conn *cls_conn;
1562 dma_addr_t fw_ddb_entry_dma;
1563 struct dev_db_entry *fw_ddb_entry;
1565 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
1566 &fw_ddb_entry_dma, GFP_KERNEL);
1567 if (!fw_ddb_entry) {
1568 ql4_printk(KERN_ERR, ha,
1569 "%s: Unable to allocate dma buffer\n", __func__);
1570 goto exit_session_conn_fwddb_param;
1573 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry,
1574 fw_ddb_entry_dma, NULL, NULL, &ddb_state,
1575 NULL, NULL, NULL) == QLA_ERROR) {
1576 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
1577 "get_ddb_entry for fw_ddb_index %d\n",
1578 ha->host_no, __func__,
1579 ddb_entry->fw_ddb_index));
1580 goto exit_session_conn_fwddb_param;
1583 cls_sess = ddb_entry->sess;
1585 cls_conn = ddb_entry->conn;
1588 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn);
1590 exit_session_conn_fwddb_param:
1592 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
1593 fw_ddb_entry, fw_ddb_entry_dma);
1596 void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha,
1597 struct ddb_entry *ddb_entry)
1599 struct iscsi_cls_session *cls_sess;
1600 struct iscsi_cls_conn *cls_conn;
1601 struct iscsi_session *sess;
1602 struct iscsi_conn *conn;
1604 dma_addr_t fw_ddb_entry_dma;
1605 struct dev_db_entry *fw_ddb_entry;
1607 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
1608 &fw_ddb_entry_dma, GFP_KERNEL);
1609 if (!fw_ddb_entry) {
1610 ql4_printk(KERN_ERR, ha,
1611 "%s: Unable to allocate dma buffer\n", __func__);
1612 goto exit_session_conn_param;
1615 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry,
1616 fw_ddb_entry_dma, NULL, NULL, &ddb_state,
1617 NULL, NULL, NULL) == QLA_ERROR) {
1618 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
1619 "get_ddb_entry for fw_ddb_index %d\n",
1620 ha->host_no, __func__,
1621 ddb_entry->fw_ddb_index));
1622 goto exit_session_conn_param;
1625 cls_sess = ddb_entry->sess;
1626 sess = cls_sess->dd_data;
1628 cls_conn = ddb_entry->conn;
1629 conn = cls_conn->dd_data;
1631 /* Update timers after login */
1632 ddb_entry->default_relogin_timeout =
1633 le16_to_cpu(fw_ddb_entry->def_timeout);
1634 ddb_entry->default_time2wait =
1635 le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
1638 conn->max_recv_dlength = BYTE_UNITS *
1639 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len);
1641 conn->max_xmit_dlength = BYTE_UNITS *
1642 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len);
1644 sess->initial_r2t_en =
1645 (BIT_10 & le16_to_cpu(fw_ddb_entry->iscsi_options));
1647 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t);
1649 sess->imm_data_en = (BIT_11 & le16_to_cpu(fw_ddb_entry->iscsi_options));
1651 sess->first_burst = BYTE_UNITS *
1652 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len);
1654 sess->max_burst = BYTE_UNITS *
1655 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len);
1657 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
1659 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain);
1661 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
1663 memcpy(sess->initiatorname, ha->name_string,
1664 min(sizeof(ha->name_string), sizeof(sess->initiatorname)));
1666 exit_session_conn_param:
1668 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
1669 fw_ddb_entry, fw_ddb_entry_dma);
1676 static void qla4xxx_start_timer(struct scsi_qla_host *ha, void *func,
1677 unsigned long interval)
1679 DEBUG(printk("scsi: %s: Starting timer thread for adapter %d\n",
1680 __func__, ha->host->host_no));
1681 init_timer(&ha->timer);
1682 ha->timer.expires = jiffies + interval * HZ;
1683 ha->timer.data = (unsigned long)ha;
1684 ha->timer.function = (void (*)(unsigned long))func;
1685 add_timer(&ha->timer);
1686 ha->timer_active = 1;
1689 static void qla4xxx_stop_timer(struct scsi_qla_host *ha)
1691 del_timer_sync(&ha->timer);
1692 ha->timer_active = 0;
1696 * qla4xxx_mark_device_missing - blocks the session
1697 * @cls_session: Pointer to the session to be blocked
1698 * @ddb_entry: Pointer to device database entry
1700 * This routine marks a device missing and close connection.
1702 void qla4xxx_mark_device_missing(struct iscsi_cls_session *cls_session)
1704 iscsi_block_session(cls_session);
1708 * qla4xxx_mark_all_devices_missing - mark all devices as missing.
1709 * @ha: Pointer to host adapter structure.
1711 * This routine marks a device missing and resets the relogin retry count.
1713 void qla4xxx_mark_all_devices_missing(struct scsi_qla_host *ha)
1715 iscsi_host_for_each_session(ha->host, qla4xxx_mark_device_missing);
1718 static struct srb* qla4xxx_get_new_srb(struct scsi_qla_host *ha,
1719 struct ddb_entry *ddb_entry,
1720 struct scsi_cmnd *cmd)
1724 srb = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
1728 kref_init(&srb->srb_ref);
1730 srb->ddb = ddb_entry;
1733 CMD_SP(cmd) = (void *)srb;
1738 static void qla4xxx_srb_free_dma(struct scsi_qla_host *ha, struct srb *srb)
1740 struct scsi_cmnd *cmd = srb->cmd;
1742 if (srb->flags & SRB_DMA_VALID) {
1743 scsi_dma_unmap(cmd);
1744 srb->flags &= ~SRB_DMA_VALID;
1749 void qla4xxx_srb_compl(struct kref *ref)
1751 struct srb *srb = container_of(ref, struct srb, srb_ref);
1752 struct scsi_cmnd *cmd = srb->cmd;
1753 struct scsi_qla_host *ha = srb->ha;
1755 qla4xxx_srb_free_dma(ha, srb);
1757 mempool_free(srb, ha->srb_mempool);
1759 cmd->scsi_done(cmd);
1763 * qla4xxx_queuecommand - scsi layer issues scsi command to driver.
1765 * @cmd: Pointer to Linux's SCSI command structure
1768 * This routine is invoked by Linux to send a SCSI command to the driver.
1769 * The mid-level driver tries to ensure that queuecommand never gets
1770 * invoked concurrently with itself or the interrupt handler (although
1771 * the interrupt handler may call this routine as part of request-
1772 * completion handling). Unfortunely, it sometimes calls the scheduler
1773 * in interrupt context which is a big NO! NO!.
1775 static int qla4xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
1777 struct scsi_qla_host *ha = to_qla_host(host);
1778 struct ddb_entry *ddb_entry = cmd->device->hostdata;
1779 struct iscsi_cls_session *sess = ddb_entry->sess;
1783 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
1784 if (test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags))
1785 cmd->result = DID_NO_CONNECT << 16;
1787 cmd->result = DID_REQUEUE << 16;
1788 goto qc_fail_command;
1792 cmd->result = DID_IMM_RETRY << 16;
1793 goto qc_fail_command;
1796 rval = iscsi_session_chkready(sess);
1799 goto qc_fail_command;
1802 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
1803 test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) ||
1804 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
1805 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) ||
1806 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) ||
1807 !test_bit(AF_ONLINE, &ha->flags) ||
1808 !test_bit(AF_LINK_UP, &ha->flags) ||
1809 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))
1812 srb = qla4xxx_get_new_srb(ha, ddb_entry, cmd);
1816 rval = qla4xxx_send_command_to_isp(ha, srb);
1817 if (rval != QLA_SUCCESS)
1818 goto qc_host_busy_free_sp;
1822 qc_host_busy_free_sp:
1823 qla4xxx_srb_free_dma(ha, srb);
1824 mempool_free(srb, ha->srb_mempool);
1827 return SCSI_MLQUEUE_HOST_BUSY;
1830 cmd->scsi_done(cmd);
1836 * qla4xxx_mem_free - frees memory allocated to adapter
1837 * @ha: Pointer to host adapter structure.
1839 * Frees memory previously allocated by qla4xxx_mem_alloc
1841 static void qla4xxx_mem_free(struct scsi_qla_host *ha)
1844 dma_free_coherent(&ha->pdev->dev, ha->queues_len, ha->queues,
1850 ha->request_ring = NULL;
1851 ha->request_dma = 0;
1852 ha->response_ring = NULL;
1853 ha->response_dma = 0;
1854 ha->shadow_regs = NULL;
1855 ha->shadow_regs_dma = 0;
1857 /* Free srb pool. */
1858 if (ha->srb_mempool)
1859 mempool_destroy(ha->srb_mempool);
1861 ha->srb_mempool = NULL;
1863 if (ha->chap_dma_pool)
1864 dma_pool_destroy(ha->chap_dma_pool);
1867 vfree(ha->chap_list);
1868 ha->chap_list = NULL;
1870 if (ha->fw_ddb_dma_pool)
1871 dma_pool_destroy(ha->fw_ddb_dma_pool);
1873 /* release io space registers */
1874 if (is_qla8022(ha)) {
1877 (struct device_reg_82xx __iomem *)ha->nx_pcibase);
1880 pci_release_regions(ha->pdev);
1884 * qla4xxx_mem_alloc - allocates memory for use by adapter.
1885 * @ha: Pointer to host adapter structure
1887 * Allocates DMA memory for request and response queues. Also allocates memory
1890 static int qla4xxx_mem_alloc(struct scsi_qla_host *ha)
1892 unsigned long align;
1894 /* Allocate contiguous block of DMA memory for queues. */
1895 ha->queues_len = ((REQUEST_QUEUE_DEPTH * QUEUE_SIZE) +
1896 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE) +
1897 sizeof(struct shadow_regs) +
1899 (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
1900 ha->queues = dma_alloc_coherent(&ha->pdev->dev, ha->queues_len,
1901 &ha->queues_dma, GFP_KERNEL);
1902 if (ha->queues == NULL) {
1903 ql4_printk(KERN_WARNING, ha,
1904 "Memory Allocation failed - queues.\n");
1906 goto mem_alloc_error_exit;
1908 memset(ha->queues, 0, ha->queues_len);
1911 * As per RISC alignment requirements -- the bus-address must be a
1912 * multiple of the request-ring size (in bytes).
1915 if ((unsigned long)ha->queues_dma & (MEM_ALIGN_VALUE - 1))
1916 align = MEM_ALIGN_VALUE - ((unsigned long)ha->queues_dma &
1917 (MEM_ALIGN_VALUE - 1));
1919 /* Update request and response queue pointers. */
1920 ha->request_dma = ha->queues_dma + align;
1921 ha->request_ring = (struct queue_entry *) (ha->queues + align);
1922 ha->response_dma = ha->queues_dma + align +
1923 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE);
1924 ha->response_ring = (struct queue_entry *) (ha->queues + align +
1925 (REQUEST_QUEUE_DEPTH *
1927 ha->shadow_regs_dma = ha->queues_dma + align +
1928 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE) +
1929 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE);
1930 ha->shadow_regs = (struct shadow_regs *) (ha->queues + align +
1931 (REQUEST_QUEUE_DEPTH *
1933 (RESPONSE_QUEUE_DEPTH *
1936 /* Allocate memory for srb pool. */
1937 ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab,
1938 mempool_free_slab, srb_cachep);
1939 if (ha->srb_mempool == NULL) {
1940 ql4_printk(KERN_WARNING, ha,
1941 "Memory Allocation failed - SRB Pool.\n");
1943 goto mem_alloc_error_exit;
1946 ha->chap_dma_pool = dma_pool_create("ql4_chap", &ha->pdev->dev,
1947 CHAP_DMA_BLOCK_SIZE, 8, 0);
1949 if (ha->chap_dma_pool == NULL) {
1950 ql4_printk(KERN_WARNING, ha,
1951 "%s: chap_dma_pool allocation failed..\n", __func__);
1952 goto mem_alloc_error_exit;
1955 ha->fw_ddb_dma_pool = dma_pool_create("ql4_fw_ddb", &ha->pdev->dev,
1956 DDB_DMA_BLOCK_SIZE, 8, 0);
1958 if (ha->fw_ddb_dma_pool == NULL) {
1959 ql4_printk(KERN_WARNING, ha,
1960 "%s: fw_ddb_dma_pool allocation failed..\n",
1962 goto mem_alloc_error_exit;
1967 mem_alloc_error_exit:
1968 qla4xxx_mem_free(ha);
1973 * qla4_8xxx_check_fw_alive - Check firmware health
1974 * @ha: Pointer to host adapter structure.
1976 * Context: Interrupt
1978 static int qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha)
1980 uint32_t fw_heartbeat_counter;
1981 int status = QLA_SUCCESS;
1983 fw_heartbeat_counter = qla4_8xxx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER);
1984 /* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */
1985 if (fw_heartbeat_counter == 0xffffffff) {
1986 DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Device in frozen "
1987 "state, QLA82XX_PEG_ALIVE_COUNTER is 0xffffffff\n",
1988 ha->host_no, __func__));
1992 if (ha->fw_heartbeat_counter == fw_heartbeat_counter) {
1993 ha->seconds_since_last_heartbeat++;
1994 /* FW not alive after 2 seconds */
1995 if (ha->seconds_since_last_heartbeat == 2) {
1996 ha->seconds_since_last_heartbeat = 0;
1998 ql4_printk(KERN_INFO, ha,
1999 "scsi(%ld): %s, Dumping hw/fw registers:\n "
2000 " PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2:"
2001 " 0x%x,\n PEG_NET_0_PC: 0x%x, PEG_NET_1_PC:"
2002 " 0x%x,\n PEG_NET_2_PC: 0x%x, PEG_NET_3_PC:"
2003 " 0x%x,\n PEG_NET_4_PC: 0x%x\n",
2004 ha->host_no, __func__,
2006 QLA82XX_PEG_HALT_STATUS1),
2008 QLA82XX_PEG_HALT_STATUS2),
2009 qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_0 +
2011 qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_1 +
2013 qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_2 +
2015 qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_3 +
2017 qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_4 +
2022 ha->seconds_since_last_heartbeat = 0;
2024 ha->fw_heartbeat_counter = fw_heartbeat_counter;
2029 * qla4_8xxx_watchdog - Poll dev state
2030 * @ha: Pointer to host adapter structure.
2032 * Context: Interrupt
2034 void qla4_8xxx_watchdog(struct scsi_qla_host *ha)
2036 uint32_t dev_state, halt_status;
2038 /* don't poll if reset is going on */
2039 if (!(test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) ||
2040 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
2041 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags))) {
2042 dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
2043 if (dev_state == QLA82XX_DEV_NEED_RESET &&
2044 !test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
2045 if (!ql4xdontresethba) {
2046 ql4_printk(KERN_INFO, ha, "%s: HW State: "
2047 "NEED RESET!\n", __func__);
2048 set_bit(DPC_RESET_HA, &ha->dpc_flags);
2049 qla4xxx_wake_dpc(ha);
2051 } else if (dev_state == QLA82XX_DEV_NEED_QUIESCENT &&
2052 !test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) {
2053 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED QUIES!\n",
2055 set_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags);
2056 qla4xxx_wake_dpc(ha);
2058 /* Check firmware health */
2059 if (qla4_8xxx_check_fw_alive(ha)) {
2060 halt_status = qla4_8xxx_rd_32(ha,
2061 QLA82XX_PEG_HALT_STATUS1);
2063 /* Since we cannot change dev_state in interrupt
2064 * context, set appropriate DPC flag then wakeup
2066 if (halt_status & HALT_STATUS_UNRECOVERABLE)
2067 set_bit(DPC_HA_UNRECOVERABLE,
2070 ql4_printk(KERN_INFO, ha, "%s: detect "
2071 "abort needed!\n", __func__);
2072 set_bit(DPC_RESET_HA, &ha->dpc_flags);
2074 qla4xxx_mailbox_premature_completion(ha);
2075 qla4xxx_wake_dpc(ha);
2081 void qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)
2083 struct iscsi_session *sess;
2084 struct ddb_entry *ddb_entry;
2085 struct scsi_qla_host *ha;
2087 sess = cls_sess->dd_data;
2088 ddb_entry = sess->dd_data;
2091 if (!(ddb_entry->ddb_type == FLASH_DDB))
2094 if (adapter_up(ha) && !test_bit(DF_RELOGIN, &ddb_entry->flags) &&
2095 !iscsi_is_session_online(cls_sess)) {
2096 if (atomic_read(&ddb_entry->retry_relogin_timer) !=
2098 if (atomic_read(&ddb_entry->retry_relogin_timer) ==
2100 atomic_set(&ddb_entry->retry_relogin_timer,
2102 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
2103 set_bit(DF_RELOGIN, &ddb_entry->flags);
2104 DEBUG2(ql4_printk(KERN_INFO, ha,
2105 "%s: index [%d] login device\n",
2106 __func__, ddb_entry->fw_ddb_index));
2108 atomic_dec(&ddb_entry->retry_relogin_timer);
2112 /* Wait for relogin to timeout */
2113 if (atomic_read(&ddb_entry->relogin_timer) &&
2114 (atomic_dec_and_test(&ddb_entry->relogin_timer) != 0)) {
2116 * If the relogin times out and the device is
2117 * still NOT ONLINE then try and relogin again.
2119 if (!iscsi_is_session_online(cls_sess)) {
2120 /* Reset retry relogin timer */
2121 atomic_inc(&ddb_entry->relogin_retry_count);
2122 DEBUG2(ql4_printk(KERN_INFO, ha,
2123 "%s: index[%d] relogin timed out-retrying"
2124 " relogin (%d), retry (%d)\n", __func__,
2125 ddb_entry->fw_ddb_index,
2126 atomic_read(&ddb_entry->relogin_retry_count),
2127 ddb_entry->default_time2wait + 4));
2128 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
2129 atomic_set(&ddb_entry->retry_relogin_timer,
2130 ddb_entry->default_time2wait + 4);
2136 * qla4xxx_timer - checks every second for work to do.
2137 * @ha: Pointer to host adapter structure.
2139 static void qla4xxx_timer(struct scsi_qla_host *ha)
2144 iscsi_host_for_each_session(ha->host, qla4xxx_check_relogin_flash_ddb);
2146 /* If we are in the middle of AER/EEH processing
2147 * skip any processing and reschedule the timer
2149 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
2150 mod_timer(&ha->timer, jiffies + HZ);
2154 /* Hardware read to trigger an EEH error during mailbox waits. */
2155 if (!pci_channel_offline(ha->pdev))
2156 pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
2158 if (is_qla8022(ha)) {
2159 qla4_8xxx_watchdog(ha);
2162 if (!is_qla8022(ha)) {
2163 /* Check for heartbeat interval. */
2164 if (ha->firmware_options & FWOPT_HEARTBEAT_ENABLE &&
2165 ha->heartbeat_interval != 0) {
2166 ha->seconds_since_last_heartbeat++;
2167 if (ha->seconds_since_last_heartbeat >
2168 ha->heartbeat_interval + 2)
2169 set_bit(DPC_RESET_HA, &ha->dpc_flags);
2173 /* Wakeup the dpc routine for this adapter, if needed. */
2175 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
2176 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags) ||
2177 test_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags) ||
2178 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) ||
2179 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
2180 test_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags) ||
2181 test_bit(DPC_LINK_CHANGED, &ha->dpc_flags) ||
2182 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) ||
2183 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) ||
2184 test_bit(DPC_AEN, &ha->dpc_flags)) {
2185 DEBUG2(printk("scsi%ld: %s: scheduling dpc routine"
2186 " - dpc flags = 0x%lx\n",
2187 ha->host_no, __func__, ha->dpc_flags));
2188 qla4xxx_wake_dpc(ha);
2191 /* Reschedule timer thread to call us back in one second */
2192 mod_timer(&ha->timer, jiffies + HZ);
2194 DEBUG2(ha->seconds_since_last_intr++);
2198 * qla4xxx_cmd_wait - waits for all outstanding commands to complete
2199 * @ha: Pointer to host adapter structure.
2201 * This routine stalls the driver until all outstanding commands are returned.
2202 * Caller must release the Hardware Lock prior to calling this routine.
2204 static int qla4xxx_cmd_wait(struct scsi_qla_host *ha)
2207 unsigned long flags;
2208 struct scsi_cmnd *cmd;
2210 unsigned long wtime = jiffies + (WAIT_CMD_TOV * HZ);
2212 DEBUG2(ql4_printk(KERN_INFO, ha, "Wait up to %d seconds for cmds to "
2213 "complete\n", WAIT_CMD_TOV));
2215 while (!time_after_eq(jiffies, wtime)) {
2216 spin_lock_irqsave(&ha->hardware_lock, flags);
2217 /* Find a command that hasn't completed. */
2218 for (index = 0; index < ha->host->can_queue; index++) {
2219 cmd = scsi_host_find_tag(ha->host, index);
2221 * We cannot just check if the index is valid,
2222 * becase if we are run from the scsi eh, then
2223 * the scsi/block layer is going to prevent
2224 * the tag from being released.
2226 if (cmd != NULL && CMD_SP(cmd))
2229 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2231 /* If No Commands are pending, wait is complete */
2232 if (index == ha->host->can_queue)
2237 /* If we timed out on waiting for commands to come back
2242 int qla4xxx_hw_reset(struct scsi_qla_host *ha)
2244 uint32_t ctrl_status;
2245 unsigned long flags = 0;
2247 DEBUG2(printk(KERN_ERR "scsi%ld: %s\n", ha->host_no, __func__));
2249 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS)
2252 spin_lock_irqsave(&ha->hardware_lock, flags);
2255 * If the SCSI Reset Interrupt bit is set, clear it.
2256 * Otherwise, the Soft Reset won't work.
2258 ctrl_status = readw(&ha->reg->ctrl_status);
2259 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0)
2260 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status);
2262 /* Issue Soft Reset */
2263 writel(set_rmask(CSR_SOFT_RESET), &ha->reg->ctrl_status);
2264 readl(&ha->reg->ctrl_status);
2266 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2271 * qla4xxx_soft_reset - performs soft reset.
2272 * @ha: Pointer to host adapter structure.
2274 int qla4xxx_soft_reset(struct scsi_qla_host *ha)
2276 uint32_t max_wait_time;
2277 unsigned long flags = 0;
2279 uint32_t ctrl_status;
2281 status = qla4xxx_hw_reset(ha);
2282 if (status != QLA_SUCCESS)
2286 /* Wait until the Network Reset Intr bit is cleared */
2287 max_wait_time = RESET_INTR_TOV;
2289 spin_lock_irqsave(&ha->hardware_lock, flags);
2290 ctrl_status = readw(&ha->reg->ctrl_status);
2291 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2293 if ((ctrl_status & CSR_NET_RESET_INTR) == 0)
2297 } while ((--max_wait_time));
2299 if ((ctrl_status & CSR_NET_RESET_INTR) != 0) {
2300 DEBUG2(printk(KERN_WARNING
2301 "scsi%ld: Network Reset Intr not cleared by "
2302 "Network function, clearing it now!\n",
2304 spin_lock_irqsave(&ha->hardware_lock, flags);
2305 writel(set_rmask(CSR_NET_RESET_INTR), &ha->reg->ctrl_status);
2306 readl(&ha->reg->ctrl_status);
2307 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2310 /* Wait until the firmware tells us the Soft Reset is done */
2311 max_wait_time = SOFT_RESET_TOV;
2313 spin_lock_irqsave(&ha->hardware_lock, flags);
2314 ctrl_status = readw(&ha->reg->ctrl_status);
2315 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2317 if ((ctrl_status & CSR_SOFT_RESET) == 0) {
2318 status = QLA_SUCCESS;
2323 } while ((--max_wait_time));
2326 * Also, make sure that the SCSI Reset Interrupt bit has been cleared
2327 * after the soft reset has taken place.
2329 spin_lock_irqsave(&ha->hardware_lock, flags);
2330 ctrl_status = readw(&ha->reg->ctrl_status);
2331 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) {
2332 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status);
2333 readl(&ha->reg->ctrl_status);
2335 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2337 /* If soft reset fails then most probably the bios on other
2338 * function is also enabled.
2339 * Since the initialization is sequential the other fn
2340 * wont be able to acknowledge the soft reset.
2341 * Issue a force soft reset to workaround this scenario.
2343 if (max_wait_time == 0) {
2344 /* Issue Force Soft Reset */
2345 spin_lock_irqsave(&ha->hardware_lock, flags);
2346 writel(set_rmask(CSR_FORCE_SOFT_RESET), &ha->reg->ctrl_status);
2347 readl(&ha->reg->ctrl_status);
2348 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2349 /* Wait until the firmware tells us the Soft Reset is done */
2350 max_wait_time = SOFT_RESET_TOV;
2352 spin_lock_irqsave(&ha->hardware_lock, flags);
2353 ctrl_status = readw(&ha->reg->ctrl_status);
2354 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2356 if ((ctrl_status & CSR_FORCE_SOFT_RESET) == 0) {
2357 status = QLA_SUCCESS;
2362 } while ((--max_wait_time));
2369 * qla4xxx_abort_active_cmds - returns all outstanding i/o requests to O.S.
2370 * @ha: Pointer to host adapter structure.
2371 * @res: returned scsi status
2373 * This routine is called just prior to a HARD RESET to return all
2374 * outstanding commands back to the Operating System.
2375 * Caller should make sure that the following locks are released
2376 * before this calling routine: Hardware lock, and io_request_lock.
2378 static void qla4xxx_abort_active_cmds(struct scsi_qla_host *ha, int res)
2382 unsigned long flags;
2384 spin_lock_irqsave(&ha->hardware_lock, flags);
2385 for (i = 0; i < ha->host->can_queue; i++) {
2386 srb = qla4xxx_del_from_active_array(ha, i);
2388 srb->cmd->result = res;
2389 kref_put(&srb->srb_ref, qla4xxx_srb_compl);
2392 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2395 void qla4xxx_dead_adapter_cleanup(struct scsi_qla_host *ha)
2397 clear_bit(AF_ONLINE, &ha->flags);
2399 /* Disable the board */
2400 ql4_printk(KERN_INFO, ha, "Disabling the board\n");
2402 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
2403 qla4xxx_mark_all_devices_missing(ha);
2404 clear_bit(AF_INIT_DONE, &ha->flags);
2407 static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session)
2409 struct iscsi_session *sess;
2410 struct ddb_entry *ddb_entry;
2412 sess = cls_session->dd_data;
2413 ddb_entry = sess->dd_data;
2414 ddb_entry->fw_ddb_device_state = DDB_DS_SESSION_FAILED;
2416 if (ddb_entry->ddb_type == FLASH_DDB)
2417 iscsi_block_session(ddb_entry->sess);
2419 iscsi_session_failure(cls_session->dd_data,
2420 ISCSI_ERR_CONN_FAILED);
2424 * qla4xxx_recover_adapter - recovers adapter after a fatal error
2425 * @ha: Pointer to host adapter structure.
2427 static int qla4xxx_recover_adapter(struct scsi_qla_host *ha)
2429 int status = QLA_ERROR;
2430 uint8_t reset_chip = 0;
2434 /* Stall incoming I/O until we are done */
2435 scsi_block_requests(ha->host);
2436 clear_bit(AF_ONLINE, &ha->flags);
2437 clear_bit(AF_LINK_UP, &ha->flags);
2439 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: adapter OFFLINE\n", __func__));
2441 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
2443 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session);
2445 if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
2448 /* For the DPC_RESET_HA_INTR case (ISP-4xxx specific)
2449 * do not reset adapter, jump to initialize_adapter */
2450 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
2451 status = QLA_SUCCESS;
2452 goto recover_ha_init_adapter;
2455 /* For the ISP-82xx adapter, issue a stop_firmware if invoked
2456 * from eh_host_reset or ioctl module */
2457 if (is_qla8022(ha) && !reset_chip &&
2458 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) {
2460 DEBUG2(ql4_printk(KERN_INFO, ha,
2461 "scsi%ld: %s - Performing stop_firmware...\n",
2462 ha->host_no, __func__));
2463 status = ha->isp_ops->reset_firmware(ha);
2464 if (status == QLA_SUCCESS) {
2465 if (!test_bit(AF_FW_RECOVERY, &ha->flags))
2466 qla4xxx_cmd_wait(ha);
2467 ha->isp_ops->disable_intrs(ha);
2468 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
2469 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
2471 /* If the stop_firmware fails then
2472 * reset the entire chip */
2474 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
2475 set_bit(DPC_RESET_HA, &ha->dpc_flags);
2479 /* Issue full chip reset if recovering from a catastrophic error,
2480 * or if stop_firmware fails for ISP-82xx.
2481 * This is the default case for ISP-4xxx */
2482 if (!is_qla8022(ha) || reset_chip) {
2483 if (!is_qla8022(ha))
2486 /* Check if 82XX firmware is alive or not
2487 * We may have arrived here from NEED_RESET
2489 if (test_bit(AF_FW_RECOVERY, &ha->flags))
2492 wait = jiffies + (FW_ALIVE_WAIT_TOV * HZ);
2493 while (time_before(jiffies, wait)) {
2494 if (qla4_8xxx_check_fw_alive(ha)) {
2495 qla4xxx_mailbox_premature_completion(ha);
2499 set_current_state(TASK_UNINTERRUPTIBLE);
2500 schedule_timeout(HZ);
2503 if (!test_bit(AF_FW_RECOVERY, &ha->flags))
2504 qla4xxx_cmd_wait(ha);
2506 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
2507 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
2508 DEBUG2(ql4_printk(KERN_INFO, ha,
2509 "scsi%ld: %s - Performing chip reset..\n",
2510 ha->host_no, __func__));
2511 status = ha->isp_ops->reset_chip(ha);
2514 /* Flush any pending ddb changed AENs */
2515 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
2517 recover_ha_init_adapter:
2518 /* Upon successful firmware/chip reset, re-initialize the adapter */
2519 if (status == QLA_SUCCESS) {
2520 /* For ISP-4xxx, force function 1 to always initialize
2521 * before function 3 to prevent both funcions from
2522 * stepping on top of the other */
2523 if (!is_qla8022(ha) && (ha->mac_index == 3))
2526 /* NOTE: AF_ONLINE flag set upon successful completion of
2527 * qla4xxx_initialize_adapter */
2528 status = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
2531 /* Retry failed adapter initialization, if necessary
2532 * Do not retry initialize_adapter for RESET_HA_INTR (ISP-4xxx specific)
2533 * case to prevent ping-pong resets between functions */
2534 if (!test_bit(AF_ONLINE, &ha->flags) &&
2535 !test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
2536 /* Adapter initialization failed, see if we can retry
2538 * Since we don't want to block the DPC for too long
2539 * with multiple resets in the same thread,
2540 * utilize DPC to retry */
2541 if (is_qla8022(ha)) {
2542 qla4_8xxx_idc_lock(ha);
2543 dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
2544 qla4_8xxx_idc_unlock(ha);
2545 if (dev_state == QLA82XX_DEV_FAILED) {
2546 ql4_printk(KERN_INFO, ha, "%s: don't retry "
2547 "recover adapter. H/W is in Failed "
2548 "state\n", __func__);
2549 qla4xxx_dead_adapter_cleanup(ha);
2550 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
2551 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
2552 clear_bit(DPC_RESET_HA_FW_CONTEXT,
2560 if (!test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags)) {
2561 ha->retry_reset_ha_cnt = MAX_RESET_HA_RETRIES;
2562 DEBUG2(printk("scsi%ld: recover adapter - retrying "
2563 "(%d) more times\n", ha->host_no,
2564 ha->retry_reset_ha_cnt));
2565 set_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
2568 if (ha->retry_reset_ha_cnt > 0) {
2569 /* Schedule another Reset HA--DPC will retry */
2570 ha->retry_reset_ha_cnt--;
2571 DEBUG2(printk("scsi%ld: recover adapter - "
2572 "retry remaining %d\n",
2574 ha->retry_reset_ha_cnt));
2578 if (ha->retry_reset_ha_cnt == 0) {
2579 /* Recover adapter retries have been exhausted.
2581 DEBUG2(printk("scsi%ld: recover adapter "
2582 "failed - board disabled\n",
2584 qla4xxx_dead_adapter_cleanup(ha);
2585 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
2586 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
2587 clear_bit(DPC_RESET_HA_FW_CONTEXT,
2593 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
2594 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
2595 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
2599 ha->adapter_error_count++;
2601 if (test_bit(AF_ONLINE, &ha->flags))
2602 ha->isp_ops->enable_intrs(ha);
2604 scsi_unblock_requests(ha->host);
2606 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
2607 DEBUG2(printk("scsi%ld: recover adapter: %s\n", ha->host_no,
2608 status == QLA_ERROR ? "FAILED" : "SUCCEEDED"));
2613 static void qla4xxx_relogin_devices(struct iscsi_cls_session *cls_session)
2615 struct iscsi_session *sess;
2616 struct ddb_entry *ddb_entry;
2617 struct scsi_qla_host *ha;
2619 sess = cls_session->dd_data;
2620 ddb_entry = sess->dd_data;
2622 if (!iscsi_is_session_online(cls_session)) {
2623 if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) {
2624 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
2625 " unblock session\n", ha->host_no, __func__,
2626 ddb_entry->fw_ddb_index);
2627 iscsi_unblock_session(ddb_entry->sess);
2629 /* Trigger relogin */
2630 if (ddb_entry->ddb_type == FLASH_DDB) {
2631 if (!test_bit(DF_RELOGIN, &ddb_entry->flags))
2632 qla4xxx_arm_relogin_timer(ddb_entry);
2634 iscsi_session_failure(cls_session->dd_data,
2635 ISCSI_ERR_CONN_FAILED);
2640 int qla4xxx_unblock_flash_ddb(struct iscsi_cls_session *cls_session)
2642 struct iscsi_session *sess;
2643 struct ddb_entry *ddb_entry;
2644 struct scsi_qla_host *ha;
2646 sess = cls_session->dd_data;
2647 ddb_entry = sess->dd_data;
2649 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
2650 " unblock session\n", ha->host_no, __func__,
2651 ddb_entry->fw_ddb_index);
2653 iscsi_unblock_session(ddb_entry->sess);
2655 /* Start scan target */
2656 if (test_bit(AF_ONLINE, &ha->flags)) {
2657 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
2658 " start scan\n", ha->host_no, __func__,
2659 ddb_entry->fw_ddb_index);
2660 scsi_queue_work(ha->host, &ddb_entry->sess->scan_work);
2665 int qla4xxx_unblock_ddb(struct iscsi_cls_session *cls_session)
2667 struct iscsi_session *sess;
2668 struct ddb_entry *ddb_entry;
2669 struct scsi_qla_host *ha;
2671 sess = cls_session->dd_data;
2672 ddb_entry = sess->dd_data;
2674 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
2675 " unblock user space session\n", ha->host_no, __func__,
2676 ddb_entry->fw_ddb_index);
2677 iscsi_conn_start(ddb_entry->conn);
2678 iscsi_conn_login_event(ddb_entry->conn,
2679 ISCSI_CONN_STATE_LOGGED_IN);
2684 static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha)
2686 iscsi_host_for_each_session(ha->host, qla4xxx_relogin_devices);
2689 static void qla4xxx_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)
2691 uint16_t relogin_timer;
2692 struct iscsi_session *sess;
2693 struct ddb_entry *ddb_entry;
2694 struct scsi_qla_host *ha;
2696 sess = cls_sess->dd_data;
2697 ddb_entry = sess->dd_data;
2700 relogin_timer = max(ddb_entry->default_relogin_timeout,
2701 (uint16_t)RELOGIN_TOV);
2702 atomic_set(&ddb_entry->relogin_timer, relogin_timer);
2704 DEBUG2(ql4_printk(KERN_INFO, ha,
2705 "scsi%ld: Relogin index [%d]. TOV=%d\n", ha->host_no,
2706 ddb_entry->fw_ddb_index, relogin_timer));
2708 qla4xxx_login_flash_ddb(cls_sess);
2711 static void qla4xxx_dpc_relogin(struct iscsi_cls_session *cls_sess)
2713 struct iscsi_session *sess;
2714 struct ddb_entry *ddb_entry;
2715 struct scsi_qla_host *ha;
2717 sess = cls_sess->dd_data;
2718 ddb_entry = sess->dd_data;
2721 if (!(ddb_entry->ddb_type == FLASH_DDB))
2724 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags) &&
2725 !iscsi_is_session_online(cls_sess)) {
2726 DEBUG2(ql4_printk(KERN_INFO, ha,
2727 "relogin issued\n"));
2728 qla4xxx_relogin_flash_ddb(cls_sess);
2732 void qla4xxx_wake_dpc(struct scsi_qla_host *ha)
2735 queue_work(ha->dpc_thread, &ha->dpc_work);
2739 * qla4xxx_do_dpc - dpc routine
2740 * @data: in our case pointer to adapter structure
2742 * This routine is a task that is schedule by the interrupt handler
2743 * to perform the background processing for interrupts. We put it
2744 * on a task queue that is consumed whenever the scheduler runs; that's
2745 * so you can do anything (i.e. put the process to sleep etc). In fact,
2746 * the mid-level tries to sleep when it reaches the driver threshold
2747 * "host->can_queue". This can cause a panic if we were in our interrupt code.
2749 static void qla4xxx_do_dpc(struct work_struct *work)
2751 struct scsi_qla_host *ha =
2752 container_of(work, struct scsi_qla_host, dpc_work);
2753 int status = QLA_ERROR;
2755 DEBUG2(printk("scsi%ld: %s: DPC handler waking up."
2756 "flags = 0x%08lx, dpc_flags = 0x%08lx\n",
2757 ha->host_no, __func__, ha->flags, ha->dpc_flags))
2759 /* Initialization not yet finished. Don't do anything yet. */
2760 if (!test_bit(AF_INIT_DONE, &ha->flags))
2763 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
2764 DEBUG2(printk(KERN_INFO "scsi%ld: %s: flags = %lx\n",
2765 ha->host_no, __func__, ha->flags));
2769 if (is_qla8022(ha)) {
2770 if (test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags)) {
2771 qla4_8xxx_idc_lock(ha);
2772 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
2773 QLA82XX_DEV_FAILED);
2774 qla4_8xxx_idc_unlock(ha);
2775 ql4_printk(KERN_INFO, ha, "HW State: FAILED\n");
2776 qla4_8xxx_device_state_handler(ha);
2778 if (test_and_clear_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) {
2779 qla4_8xxx_need_qsnt_handler(ha);
2783 if (!test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) &&
2784 (test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
2785 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
2786 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))) {
2787 if (ql4xdontresethba) {
2788 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n",
2789 ha->host_no, __func__));
2790 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
2791 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags);
2792 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
2793 goto dpc_post_reset_ha;
2795 if (test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) ||
2796 test_bit(DPC_RESET_HA, &ha->dpc_flags))
2797 qla4xxx_recover_adapter(ha);
2799 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
2800 uint8_t wait_time = RESET_INTR_TOV;
2802 while ((readw(&ha->reg->ctrl_status) &
2803 (CSR_SOFT_RESET | CSR_FORCE_SOFT_RESET)) != 0) {
2804 if (--wait_time == 0)
2809 DEBUG2(printk("scsi%ld: %s: SR|FSR "
2810 "bit not cleared-- resetting\n",
2811 ha->host_no, __func__));
2812 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
2813 if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS) {
2814 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
2815 status = qla4xxx_recover_adapter(ha);
2817 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags);
2818 if (status == QLA_SUCCESS)
2819 ha->isp_ops->enable_intrs(ha);
2824 /* ---- process AEN? --- */
2825 if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags))
2826 qla4xxx_process_aen(ha, PROCESS_ALL_AENS);
2828 /* ---- Get DHCP IP Address? --- */
2829 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags))
2830 qla4xxx_get_dhcp_ip_address(ha);
2832 /* ---- relogin device? --- */
2833 if (adapter_up(ha) &&
2834 test_and_clear_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags)) {
2835 iscsi_host_for_each_session(ha->host, qla4xxx_dpc_relogin);
2838 /* ---- link change? --- */
2839 if (test_and_clear_bit(DPC_LINK_CHANGED, &ha->dpc_flags)) {
2840 if (!test_bit(AF_LINK_UP, &ha->flags)) {
2841 /* ---- link down? --- */
2842 qla4xxx_mark_all_devices_missing(ha);
2844 /* ---- link up? --- *
2845 * F/W will auto login to all devices ONLY ONCE after
2846 * link up during driver initialization and runtime
2847 * fatal error recovery. Therefore, the driver must
2848 * manually relogin to devices when recovering from
2849 * connection failures, logouts, expired KATO, etc. */
2850 if (test_and_clear_bit(AF_BUILD_DDB_LIST, &ha->flags)) {
2851 qla4xxx_build_ddb_list(ha, ha->is_reset);
2852 iscsi_host_for_each_session(ha->host,
2853 qla4xxx_login_flash_ddb);
2855 qla4xxx_relogin_all_devices(ha);
2861 * qla4xxx_free_adapter - release the adapter
2862 * @ha: pointer to adapter structure
2864 static void qla4xxx_free_adapter(struct scsi_qla_host *ha)
2866 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
2868 if (test_bit(AF_INTERRUPTS_ON, &ha->flags)) {
2869 /* Turn-off interrupts on the card. */
2870 ha->isp_ops->disable_intrs(ha);
2873 /* Remove timer thread, if present */
2874 if (ha->timer_active)
2875 qla4xxx_stop_timer(ha);
2877 /* Kill the kernel thread for this host */
2879 destroy_workqueue(ha->dpc_thread);
2881 /* Kill the kernel thread for this host */
2883 destroy_workqueue(ha->task_wq);
2885 /* Put firmware in known state */
2886 ha->isp_ops->reset_firmware(ha);
2888 if (is_qla8022(ha)) {
2889 qla4_8xxx_idc_lock(ha);
2890 qla4_8xxx_clear_drv_active(ha);
2891 qla4_8xxx_idc_unlock(ha);
2894 /* Detach interrupts */
2895 if (test_and_clear_bit(AF_IRQ_ATTACHED, &ha->flags))
2896 qla4xxx_free_irqs(ha);
2898 /* free extra memory */
2899 qla4xxx_mem_free(ha);
2902 int qla4_8xxx_iospace_config(struct scsi_qla_host *ha)
2905 uint8_t revision_id;
2906 unsigned long mem_base, mem_len, db_base, db_len;
2907 struct pci_dev *pdev = ha->pdev;
2909 status = pci_request_regions(pdev, DRIVER_NAME);
2912 "scsi(%ld) Failed to reserve PIO regions (%s) "
2913 "status=%d\n", ha->host_no, pci_name(pdev), status);
2914 goto iospace_error_exit;
2917 pci_read_config_byte(pdev, PCI_REVISION_ID, &revision_id);
2918 DEBUG2(printk(KERN_INFO "%s: revision-id=%d\n",
2919 __func__, revision_id));
2920 ha->revision_id = revision_id;
2922 /* remap phys address */
2923 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
2924 mem_len = pci_resource_len(pdev, 0);
2925 DEBUG2(printk(KERN_INFO "%s: ioremap from %lx a size of %lx\n",
2926 __func__, mem_base, mem_len));
2928 /* mapping of pcibase pointer */
2929 ha->nx_pcibase = (unsigned long)ioremap(mem_base, mem_len);
2930 if (!ha->nx_pcibase) {
2932 "cannot remap MMIO (%s), aborting\n", pci_name(pdev));
2933 pci_release_regions(ha->pdev);
2934 goto iospace_error_exit;
2937 /* Mapping of IO base pointer, door bell read and write pointer */
2939 /* mapping of IO base pointer */
2941 (struct device_reg_82xx __iomem *)((uint8_t *)ha->nx_pcibase +
2942 0xbc000 + (ha->pdev->devfn << 11));
2944 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
2945 db_len = pci_resource_len(pdev, 4);
2947 ha->nx_db_wr_ptr = (ha->pdev->devfn == 4 ? QLA82XX_CAM_RAM_DB1 :
2948 QLA82XX_CAM_RAM_DB2);
2956 * qla4xxx_iospace_config - maps registers
2957 * @ha: pointer to adapter structure
2959 * This routines maps HBA's registers from the pci address space
2960 * into the kernel virtual address space for memory mapped i/o.
2962 int qla4xxx_iospace_config(struct scsi_qla_host *ha)
2964 unsigned long pio, pio_len, pio_flags;
2965 unsigned long mmio, mmio_len, mmio_flags;
2967 pio = pci_resource_start(ha->pdev, 0);
2968 pio_len = pci_resource_len(ha->pdev, 0);
2969 pio_flags = pci_resource_flags(ha->pdev, 0);
2970 if (pio_flags & IORESOURCE_IO) {
2971 if (pio_len < MIN_IOBASE_LEN) {
2972 ql4_printk(KERN_WARNING, ha,
2973 "Invalid PCI I/O region size\n");
2977 ql4_printk(KERN_WARNING, ha, "region #0 not a PIO resource\n");
2981 /* Use MMIO operations for all accesses. */
2982 mmio = pci_resource_start(ha->pdev, 1);
2983 mmio_len = pci_resource_len(ha->pdev, 1);
2984 mmio_flags = pci_resource_flags(ha->pdev, 1);
2986 if (!(mmio_flags & IORESOURCE_MEM)) {
2987 ql4_printk(KERN_ERR, ha,
2988 "region #0 not an MMIO resource, aborting\n");
2990 goto iospace_error_exit;
2993 if (mmio_len < MIN_IOBASE_LEN) {
2994 ql4_printk(KERN_ERR, ha,
2995 "Invalid PCI mem region size, aborting\n");
2996 goto iospace_error_exit;
2999 if (pci_request_regions(ha->pdev, DRIVER_NAME)) {
3000 ql4_printk(KERN_WARNING, ha,
3001 "Failed to reserve PIO/MMIO regions\n");
3003 goto iospace_error_exit;
3006 ha->pio_address = pio;
3007 ha->pio_length = pio_len;
3008 ha->reg = ioremap(mmio, MIN_IOBASE_LEN);
3010 ql4_printk(KERN_ERR, ha,
3011 "cannot remap MMIO, aborting\n");
3013 goto iospace_error_exit;
3022 static struct isp_operations qla4xxx_isp_ops = {
3023 .iospace_config = qla4xxx_iospace_config,
3024 .pci_config = qla4xxx_pci_config,
3025 .disable_intrs = qla4xxx_disable_intrs,
3026 .enable_intrs = qla4xxx_enable_intrs,
3027 .start_firmware = qla4xxx_start_firmware,
3028 .intr_handler = qla4xxx_intr_handler,
3029 .interrupt_service_routine = qla4xxx_interrupt_service_routine,
3030 .reset_chip = qla4xxx_soft_reset,
3031 .reset_firmware = qla4xxx_hw_reset,
3032 .queue_iocb = qla4xxx_queue_iocb,
3033 .complete_iocb = qla4xxx_complete_iocb,
3034 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out,
3035 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in,
3036 .get_sys_info = qla4xxx_get_sys_info,
3039 static struct isp_operations qla4_8xxx_isp_ops = {
3040 .iospace_config = qla4_8xxx_iospace_config,
3041 .pci_config = qla4_8xxx_pci_config,
3042 .disable_intrs = qla4_8xxx_disable_intrs,
3043 .enable_intrs = qla4_8xxx_enable_intrs,
3044 .start_firmware = qla4_8xxx_load_risc,
3045 .intr_handler = qla4_8xxx_intr_handler,
3046 .interrupt_service_routine = qla4_8xxx_interrupt_service_routine,
3047 .reset_chip = qla4_8xxx_isp_reset,
3048 .reset_firmware = qla4_8xxx_stop_firmware,
3049 .queue_iocb = qla4_8xxx_queue_iocb,
3050 .complete_iocb = qla4_8xxx_complete_iocb,
3051 .rd_shdw_req_q_out = qla4_8xxx_rd_shdw_req_q_out,
3052 .rd_shdw_rsp_q_in = qla4_8xxx_rd_shdw_rsp_q_in,
3053 .get_sys_info = qla4_8xxx_get_sys_info,
3056 uint16_t qla4xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha)
3058 return (uint16_t)le32_to_cpu(ha->shadow_regs->req_q_out);
3061 uint16_t qla4_8xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha)
3063 return (uint16_t)le32_to_cpu(readl(&ha->qla4_8xxx_reg->req_q_out));
3066 uint16_t qla4xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha)
3068 return (uint16_t)le32_to_cpu(ha->shadow_regs->rsp_q_in);
3071 uint16_t qla4_8xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha)
3073 return (uint16_t)le32_to_cpu(readl(&ha->qla4_8xxx_reg->rsp_q_in));
3076 static ssize_t qla4xxx_show_boot_eth_info(void *data, int type, char *buf)
3078 struct scsi_qla_host *ha = data;
3083 case ISCSI_BOOT_ETH_FLAGS:
3084 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT);
3086 case ISCSI_BOOT_ETH_INDEX:
3087 rc = sprintf(str, "0\n");
3089 case ISCSI_BOOT_ETH_MAC:
3090 rc = sysfs_format_mac(str, ha->my_mac,
3100 static umode_t qla4xxx_eth_get_attr_visibility(void *data, int type)
3105 case ISCSI_BOOT_ETH_FLAGS:
3106 case ISCSI_BOOT_ETH_MAC:
3107 case ISCSI_BOOT_ETH_INDEX:
3117 static ssize_t qla4xxx_show_boot_ini_info(void *data, int type, char *buf)
3119 struct scsi_qla_host *ha = data;
3124 case ISCSI_BOOT_INI_INITIATOR_NAME:
3125 rc = sprintf(str, "%s\n", ha->name_string);
3134 static umode_t qla4xxx_ini_get_attr_visibility(void *data, int type)
3139 case ISCSI_BOOT_INI_INITIATOR_NAME:
3150 qla4xxx_show_boot_tgt_info(struct ql4_boot_session_info *boot_sess, int type,
3153 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0];
3158 case ISCSI_BOOT_TGT_NAME:
3159 rc = sprintf(buf, "%s\n", (char *)&boot_sess->target_name);
3161 case ISCSI_BOOT_TGT_IP_ADDR:
3162 if (boot_sess->conn_list[0].dest_ipaddr.ip_type == 0x1)
3163 rc = sprintf(buf, "%pI4\n",
3164 &boot_conn->dest_ipaddr.ip_address);
3166 rc = sprintf(str, "%pI6\n",
3167 &boot_conn->dest_ipaddr.ip_address);
3169 case ISCSI_BOOT_TGT_PORT:
3170 rc = sprintf(str, "%d\n", boot_conn->dest_port);
3172 case ISCSI_BOOT_TGT_CHAP_NAME:
3173 rc = sprintf(str, "%.*s\n",
3174 boot_conn->chap.target_chap_name_length,
3175 (char *)&boot_conn->chap.target_chap_name);
3177 case ISCSI_BOOT_TGT_CHAP_SECRET:
3178 rc = sprintf(str, "%.*s\n",
3179 boot_conn->chap.target_secret_length,
3180 (char *)&boot_conn->chap.target_secret);
3182 case ISCSI_BOOT_TGT_REV_CHAP_NAME:
3183 rc = sprintf(str, "%.*s\n",
3184 boot_conn->chap.intr_chap_name_length,
3185 (char *)&boot_conn->chap.intr_chap_name);
3187 case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
3188 rc = sprintf(str, "%.*s\n",
3189 boot_conn->chap.intr_secret_length,
3190 (char *)&boot_conn->chap.intr_secret);
3192 case ISCSI_BOOT_TGT_FLAGS:
3193 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT);
3195 case ISCSI_BOOT_TGT_NIC_ASSOC:
3196 rc = sprintf(str, "0\n");
3205 static ssize_t qla4xxx_show_boot_tgt_pri_info(void *data, int type, char *buf)
3207 struct scsi_qla_host *ha = data;
3208 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_pri_sess);
3210 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf);
3213 static ssize_t qla4xxx_show_boot_tgt_sec_info(void *data, int type, char *buf)
3215 struct scsi_qla_host *ha = data;
3216 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_sec_sess);
3218 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf);
3221 static umode_t qla4xxx_tgt_get_attr_visibility(void *data, int type)
3226 case ISCSI_BOOT_TGT_NAME:
3227 case ISCSI_BOOT_TGT_IP_ADDR:
3228 case ISCSI_BOOT_TGT_PORT:
3229 case ISCSI_BOOT_TGT_CHAP_NAME:
3230 case ISCSI_BOOT_TGT_CHAP_SECRET:
3231 case ISCSI_BOOT_TGT_REV_CHAP_NAME:
3232 case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
3233 case ISCSI_BOOT_TGT_NIC_ASSOC:
3234 case ISCSI_BOOT_TGT_FLAGS:
3244 static void qla4xxx_boot_release(void *data)
3246 struct scsi_qla_host *ha = data;
3248 scsi_host_put(ha->host);
3251 static int get_fw_boot_info(struct scsi_qla_host *ha, uint16_t ddb_index[])
3254 uint32_t addr, pri_addr, sec_addr;
3258 uint8_t *buf = NULL;
3259 size_t size = 13 * sizeof(uint8_t);
3260 int ret = QLA_SUCCESS;
3262 func_num = PCI_FUNC(ha->pdev->devfn);
3264 ql4_printk(KERN_INFO, ha, "%s: Get FW boot info for 0x%x func %d\n",
3265 __func__, ha->pdev->device, func_num);
3267 if (is_qla40XX(ha)) {
3268 if (func_num == 1) {
3269 addr = NVRAM_PORT0_BOOT_MODE;
3270 pri_addr = NVRAM_PORT0_BOOT_PRI_TGT;
3271 sec_addr = NVRAM_PORT0_BOOT_SEC_TGT;
3272 } else if (func_num == 3) {
3273 addr = NVRAM_PORT1_BOOT_MODE;
3274 pri_addr = NVRAM_PORT1_BOOT_PRI_TGT;
3275 sec_addr = NVRAM_PORT1_BOOT_SEC_TGT;
3278 goto exit_boot_info;
3281 /* Check Boot Mode */
3282 val = rd_nvram_byte(ha, addr);
3283 if (!(val & 0x07)) {
3284 DEBUG2(ql4_printk(KERN_ERR, ha,
3285 "%s: Failed Boot options : 0x%x\n",
3288 goto exit_boot_info;
3291 /* get primary valid target index */
3292 val = rd_nvram_byte(ha, pri_addr);
3294 ddb_index[0] = (val & 0x7f);
3296 /* get secondary valid target index */
3297 val = rd_nvram_byte(ha, sec_addr);
3299 ddb_index[1] = (val & 0x7f);
3301 } else if (is_qla8022(ha)) {
3302 buf = dma_alloc_coherent(&ha->pdev->dev, size,
3303 &buf_dma, GFP_KERNEL);
3305 DEBUG2(ql4_printk(KERN_ERR, ha,
3306 "%s: Unable to allocate dma buffer\n",
3309 goto exit_boot_info;
3312 if (ha->port_num == 0)
3313 offset = BOOT_PARAM_OFFSET_PORT0;
3314 else if (ha->port_num == 1)
3315 offset = BOOT_PARAM_OFFSET_PORT1;
3318 goto exit_boot_info_free;
3320 addr = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_iscsi_param * 4) +
3322 if (qla4xxx_get_flash(ha, buf_dma, addr,
3323 13 * sizeof(uint8_t)) != QLA_SUCCESS) {
3324 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: Get Flash"
3325 "failed\n", ha->host_no, __func__));
3327 goto exit_boot_info_free;
3329 /* Check Boot Mode */
3330 if (!(buf[1] & 0x07)) {
3331 DEBUG2(ql4_printk(KERN_INFO, ha,
3332 "Failed: Boot options : 0x%x\n",
3335 goto exit_boot_info_free;
3338 /* get primary valid target index */
3340 ddb_index[0] = buf[2] & 0x7f;
3342 /* get secondary valid target index */
3343 if (buf[11] & BIT_7)
3344 ddb_index[1] = buf[11] & 0x7f;
3347 goto exit_boot_info;
3350 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary target ID %d, Secondary"
3351 " target ID %d\n", __func__, ddb_index[0],
3354 ha->pri_ddb_idx = ddb_index[0];
3355 ha->sec_ddb_idx = ddb_index[1];
3357 exit_boot_info_free:
3358 dma_free_coherent(&ha->pdev->dev, size, buf, buf_dma);
3364 * qla4xxx_get_bidi_chap - Get a BIDI CHAP user and password
3365 * @ha: pointer to adapter structure
3366 * @username: CHAP username to be returned
3367 * @password: CHAP password to be returned
3369 * If a boot entry has BIDI CHAP enabled then we need to set the BIDI CHAP
3370 * user and password in the sysfs entry in /sys/firmware/iscsi_boot#/.
3371 * So from the CHAP cache find the first BIDI CHAP entry and set it
3372 * to the boot record in sysfs.
3374 static int qla4xxx_get_bidi_chap(struct scsi_qla_host *ha, char *username,
3377 int i, ret = -EINVAL;
3378 int max_chap_entries = 0;
3379 struct ql4_chap_table *chap_table;
3382 max_chap_entries = (ha->hw.flt_chap_size / 2) /
3383 sizeof(struct ql4_chap_table);
3385 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
3387 if (!ha->chap_list) {
3388 ql4_printk(KERN_ERR, ha, "Do not have CHAP table cache\n");
3392 mutex_lock(&ha->chap_sem);
3393 for (i = 0; i < max_chap_entries; i++) {
3394 chap_table = (struct ql4_chap_table *)ha->chap_list + i;
3395 if (chap_table->cookie !=
3396 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) {
3400 if (chap_table->flags & BIT_7) /* local */
3403 if (!(chap_table->flags & BIT_6)) /* Not BIDI */
3406 strncpy(password, chap_table->secret, QL4_CHAP_MAX_SECRET_LEN);
3407 strncpy(username, chap_table->name, QL4_CHAP_MAX_NAME_LEN);
3411 mutex_unlock(&ha->chap_sem);
3417 static int qla4xxx_get_boot_target(struct scsi_qla_host *ha,
3418 struct ql4_boot_session_info *boot_sess,
3421 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0];
3422 struct dev_db_entry *fw_ddb_entry;
3423 dma_addr_t fw_ddb_entry_dma;
3426 int ret = QLA_SUCCESS;
3428 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3429 &fw_ddb_entry_dma, GFP_KERNEL);
3430 if (!fw_ddb_entry) {
3431 DEBUG2(ql4_printk(KERN_ERR, ha,
3432 "%s: Unable to allocate dma buffer.\n",
3438 if (qla4xxx_bootdb_by_index(ha, fw_ddb_entry,
3439 fw_ddb_entry_dma, ddb_index)) {
3440 DEBUG2(ql4_printk(KERN_ERR, ha,
3441 "%s: Flash DDB read Failed\n", __func__));
3443 goto exit_boot_target;
3446 /* Update target name and IP from DDB */
3447 memcpy(boot_sess->target_name, fw_ddb_entry->iscsi_name,
3448 min(sizeof(boot_sess->target_name),
3449 sizeof(fw_ddb_entry->iscsi_name)));
3451 options = le16_to_cpu(fw_ddb_entry->options);
3452 if (options & DDB_OPT_IPV6_DEVICE) {
3453 memcpy(&boot_conn->dest_ipaddr.ip_address,
3454 &fw_ddb_entry->ip_addr[0], IPv6_ADDR_LEN);
3456 boot_conn->dest_ipaddr.ip_type = 0x1;
3457 memcpy(&boot_conn->dest_ipaddr.ip_address,
3458 &fw_ddb_entry->ip_addr[0], IP_ADDR_LEN);
3461 boot_conn->dest_port = le16_to_cpu(fw_ddb_entry->port);
3463 /* update chap information */
3464 idx = __le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
3466 if (BIT_7 & le16_to_cpu(fw_ddb_entry->iscsi_options)) {
3468 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting chap\n"));
3470 ret = qla4xxx_get_chap(ha, (char *)&boot_conn->chap.
3472 (char *)&boot_conn->chap.target_secret,
3475 ql4_printk(KERN_ERR, ha, "Failed to set chap\n");
3477 goto exit_boot_target;
3480 boot_conn->chap.target_chap_name_length = QL4_CHAP_MAX_NAME_LEN;
3481 boot_conn->chap.target_secret_length = QL4_CHAP_MAX_SECRET_LEN;
3484 if (BIT_4 & le16_to_cpu(fw_ddb_entry->iscsi_options)) {
3486 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting BIDI chap\n"));
3488 ret = qla4xxx_get_bidi_chap(ha,
3489 (char *)&boot_conn->chap.intr_chap_name,
3490 (char *)&boot_conn->chap.intr_secret);
3493 ql4_printk(KERN_ERR, ha, "Failed to set BIDI chap\n");
3495 goto exit_boot_target;
3498 boot_conn->chap.intr_chap_name_length = QL4_CHAP_MAX_NAME_LEN;
3499 boot_conn->chap.intr_secret_length = QL4_CHAP_MAX_SECRET_LEN;
3503 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3504 fw_ddb_entry, fw_ddb_entry_dma);
3508 static int qla4xxx_get_boot_info(struct scsi_qla_host *ha)
3510 uint16_t ddb_index[2];
3511 int ret = QLA_ERROR;
3514 memset(ddb_index, 0, sizeof(ddb_index));
3515 ddb_index[0] = 0xffff;
3516 ddb_index[1] = 0xffff;
3517 ret = get_fw_boot_info(ha, ddb_index);
3518 if (ret != QLA_SUCCESS) {
3519 DEBUG2(ql4_printk(KERN_ERR, ha,
3520 "%s: Failed to set boot info.\n", __func__));
3524 if (ql4xdisablesysfsboot)
3527 if (ddb_index[0] == 0xffff)
3530 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_pri_sess),
3532 if (rval != QLA_SUCCESS) {
3533 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Failed to get "
3534 "primary target\n", __func__));
3539 if (ddb_index[1] == 0xffff)
3540 goto exit_get_boot_info;
3542 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_sec_sess),
3544 if (rval != QLA_SUCCESS) {
3545 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Failed to get "
3546 "secondary target\n", __func__));
3554 static int qla4xxx_setup_boot_info(struct scsi_qla_host *ha)
3556 struct iscsi_boot_kobj *boot_kobj;
3558 if (qla4xxx_get_boot_info(ha) != QLA_SUCCESS)
3561 if (ql4xdisablesysfsboot) {
3562 ql4_printk(KERN_INFO, ha,
3563 "%s: syfsboot disabled - driver will trigger login"
3564 "and publish session for discovery .\n", __func__);
3569 ha->boot_kset = iscsi_boot_create_host_kset(ha->host->host_no);
3573 if (!scsi_host_get(ha->host))
3575 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 0, ha,
3576 qla4xxx_show_boot_tgt_pri_info,
3577 qla4xxx_tgt_get_attr_visibility,
3578 qla4xxx_boot_release);
3582 if (!scsi_host_get(ha->host))
3584 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 1, ha,
3585 qla4xxx_show_boot_tgt_sec_info,
3586 qla4xxx_tgt_get_attr_visibility,
3587 qla4xxx_boot_release);
3591 if (!scsi_host_get(ha->host))
3593 boot_kobj = iscsi_boot_create_initiator(ha->boot_kset, 0, ha,
3594 qla4xxx_show_boot_ini_info,
3595 qla4xxx_ini_get_attr_visibility,
3596 qla4xxx_boot_release);
3600 if (!scsi_host_get(ha->host))
3602 boot_kobj = iscsi_boot_create_ethernet(ha->boot_kset, 0, ha,
3603 qla4xxx_show_boot_eth_info,
3604 qla4xxx_eth_get_attr_visibility,
3605 qla4xxx_boot_release);
3612 scsi_host_put(ha->host);
3614 iscsi_boot_destroy_kset(ha->boot_kset);
3620 * qla4xxx_create chap_list - Create CHAP list from FLASH
3621 * @ha: pointer to adapter structure
3623 * Read flash and make a list of CHAP entries, during login when a CHAP entry
3624 * is received, it will be checked in this list. If entry exist then the CHAP
3625 * entry index is set in the DDB. If CHAP entry does not exist in this list
3626 * then a new entry is added in FLASH in CHAP table and the index obtained is
3629 static void qla4xxx_create_chap_list(struct scsi_qla_host *ha)
3632 uint8_t *chap_flash_data = NULL;
3634 dma_addr_t chap_dma;
3635 uint32_t chap_size = 0;
3638 chap_size = MAX_CHAP_ENTRIES_40XX *
3639 sizeof(struct ql4_chap_table);
3640 else /* Single region contains CHAP info for both
3641 * ports which is divided into half for each port.
3643 chap_size = ha->hw.flt_chap_size / 2;
3645 chap_flash_data = dma_alloc_coherent(&ha->pdev->dev, chap_size,
3646 &chap_dma, GFP_KERNEL);
3647 if (!chap_flash_data) {
3648 ql4_printk(KERN_ERR, ha, "No memory for chap_flash_data\n");
3652 offset = FLASH_CHAP_OFFSET;
3654 offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2);
3655 if (ha->port_num == 1)
3656 offset += chap_size;
3659 rval = qla4xxx_get_flash(ha, chap_dma, offset, chap_size);
3660 if (rval != QLA_SUCCESS)
3661 goto exit_chap_list;
3663 if (ha->chap_list == NULL)
3664 ha->chap_list = vmalloc(chap_size);
3665 if (ha->chap_list == NULL) {
3666 ql4_printk(KERN_ERR, ha, "No memory for ha->chap_list\n");
3667 goto exit_chap_list;
3670 memcpy(ha->chap_list, chap_flash_data, chap_size);
3673 dma_free_coherent(&ha->pdev->dev, chap_size,
3674 chap_flash_data, chap_dma);
3677 static void qla4xxx_get_param_ddb(struct ddb_entry *ddb_entry,
3678 struct ql4_tuple_ddb *tddb)
3680 struct scsi_qla_host *ha;
3681 struct iscsi_cls_session *cls_sess;
3682 struct iscsi_cls_conn *cls_conn;
3683 struct iscsi_session *sess;
3684 struct iscsi_conn *conn;
3686 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
3688 cls_sess = ddb_entry->sess;
3689 sess = cls_sess->dd_data;
3690 cls_conn = ddb_entry->conn;
3691 conn = cls_conn->dd_data;
3693 tddb->tpgt = sess->tpgt;
3694 tddb->port = conn->persistent_port;
3695 strncpy(tddb->iscsi_name, sess->targetname, ISCSI_NAME_SIZE);
3696 strncpy(tddb->ip_addr, conn->persistent_address, DDB_IPADDR_LEN);
3699 static void qla4xxx_convert_param_ddb(struct dev_db_entry *fw_ddb_entry,
3700 struct ql4_tuple_ddb *tddb)
3702 uint16_t options = 0;
3704 tddb->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
3705 memcpy(&tddb->iscsi_name[0], &fw_ddb_entry->iscsi_name[0],
3706 min(sizeof(tddb->iscsi_name), sizeof(fw_ddb_entry->iscsi_name)));
3708 options = le16_to_cpu(fw_ddb_entry->options);
3709 if (options & DDB_OPT_IPV6_DEVICE)
3710 sprintf(tddb->ip_addr, "%pI6", fw_ddb_entry->ip_addr);
3712 sprintf(tddb->ip_addr, "%pI4", fw_ddb_entry->ip_addr);
3714 tddb->port = le16_to_cpu(fw_ddb_entry->port);
3717 static int qla4xxx_compare_tuple_ddb(struct scsi_qla_host *ha,
3718 struct ql4_tuple_ddb *old_tddb,
3719 struct ql4_tuple_ddb *new_tddb)
3721 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name))
3724 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr))
3727 if (old_tddb->port != new_tddb->port)
3730 DEBUG2(ql4_printk(KERN_INFO, ha,
3731 "Match Found, fw[%d,%d,%s,%s], [%d,%d,%s,%s]",
3732 old_tddb->port, old_tddb->tpgt, old_tddb->ip_addr,
3733 old_tddb->iscsi_name, new_tddb->port, new_tddb->tpgt,
3734 new_tddb->ip_addr, new_tddb->iscsi_name));
3739 static int qla4xxx_is_session_exists(struct scsi_qla_host *ha,
3740 struct dev_db_entry *fw_ddb_entry)
3742 struct ddb_entry *ddb_entry;
3743 struct ql4_tuple_ddb *fw_tddb = NULL;
3744 struct ql4_tuple_ddb *tmp_tddb = NULL;
3746 int ret = QLA_ERROR;
3748 fw_tddb = vzalloc(sizeof(*fw_tddb));
3750 DEBUG2(ql4_printk(KERN_WARNING, ha,
3751 "Memory Allocation failed.\n"));
3756 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
3758 DEBUG2(ql4_printk(KERN_WARNING, ha,
3759 "Memory Allocation failed.\n"));
3764 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb);
3766 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
3767 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
3768 if (ddb_entry == NULL)
3771 qla4xxx_get_param_ddb(ddb_entry, tmp_tddb);
3772 if (!qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb)) {
3773 ret = QLA_SUCCESS; /* found */
3786 static int qla4xxx_is_flash_ddb_exists(struct scsi_qla_host *ha,
3787 struct list_head *list_nt,
3788 struct dev_db_entry *fw_ddb_entry)
3790 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp;
3791 struct ql4_tuple_ddb *fw_tddb = NULL;
3792 struct ql4_tuple_ddb *tmp_tddb = NULL;
3793 int ret = QLA_ERROR;
3795 fw_tddb = vzalloc(sizeof(*fw_tddb));
3797 DEBUG2(ql4_printk(KERN_WARNING, ha,
3798 "Memory Allocation failed.\n"));
3803 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
3805 DEBUG2(ql4_printk(KERN_WARNING, ha,
3806 "Memory Allocation failed.\n"));
3811 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb);
3813 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
3814 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb);
3815 if (!qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb)) {
3816 ret = QLA_SUCCESS; /* found */
3829 static void qla4xxx_free_nt_list(struct list_head *list_nt)
3831 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp;
3833 /* Free up the normaltargets list */
3834 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
3835 list_del_init(&nt_ddb_idx->list);
3841 static struct iscsi_endpoint *qla4xxx_get_ep_fwdb(struct scsi_qla_host *ha,
3842 struct dev_db_entry *fw_ddb_entry)
3844 struct iscsi_endpoint *ep;
3845 struct sockaddr_in *addr;
3846 struct sockaddr_in6 *addr6;
3847 struct sockaddr *dst_addr;
3850 /* TODO: need to destroy on unload iscsi_endpoint*/
3851 dst_addr = vmalloc(sizeof(*dst_addr));
3855 if (fw_ddb_entry->options & DDB_OPT_IPV6_DEVICE) {
3856 dst_addr->sa_family = AF_INET6;
3857 addr6 = (struct sockaddr_in6 *)dst_addr;
3858 ip = (char *)&addr6->sin6_addr;
3859 memcpy(ip, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN);
3860 addr6->sin6_port = htons(le16_to_cpu(fw_ddb_entry->port));
3863 dst_addr->sa_family = AF_INET;
3864 addr = (struct sockaddr_in *)dst_addr;
3865 ip = (char *)&addr->sin_addr;
3866 memcpy(ip, fw_ddb_entry->ip_addr, IP_ADDR_LEN);
3867 addr->sin_port = htons(le16_to_cpu(fw_ddb_entry->port));
3870 ep = qla4xxx_ep_connect(ha->host, dst_addr, 0);
3875 static int qla4xxx_verify_boot_idx(struct scsi_qla_host *ha, uint16_t idx)
3877 if (ql4xdisablesysfsboot)
3879 if (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx)
3884 static void qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha,
3885 struct ddb_entry *ddb_entry)
3887 ddb_entry->ddb_type = FLASH_DDB;
3888 ddb_entry->fw_ddb_index = INVALID_ENTRY;
3889 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE;
3891 ddb_entry->unblock_sess = qla4xxx_unblock_flash_ddb;
3892 ddb_entry->ddb_change = qla4xxx_flash_ddb_change;
3894 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY);
3895 atomic_set(&ddb_entry->relogin_timer, 0);
3896 atomic_set(&ddb_entry->relogin_retry_count, 0);
3898 ddb_entry->default_relogin_timeout =
3899 le16_to_cpu(ddb_entry->fw_ddb_entry.def_timeout);
3900 ddb_entry->default_time2wait =
3901 le16_to_cpu(ddb_entry->fw_ddb_entry.iscsi_def_time2wait);
3904 static void qla4xxx_wait_for_ip_configuration(struct scsi_qla_host *ha)
3907 uint32_t ip_idx[IP_ADDR_COUNT] = {0, 1, 2, 3}; /* 4 IP interfaces */
3908 uint32_t sts[MBOX_REG_COUNT];
3910 unsigned long wtime;
3913 wtime = jiffies + (HZ * IP_CONFIG_TOV);
3915 for (idx = 0; idx < IP_ADDR_COUNT; idx++) {
3916 if (ip_idx[idx] == -1)
3919 ret = qla4xxx_get_ip_state(ha, 0, ip_idx[idx], sts);
3921 if (ret == QLA_ERROR) {
3926 ip_state = (sts[1] & IP_STATE_MASK) >> IP_STATE_SHIFT;
3928 DEBUG2(ql4_printk(KERN_INFO, ha,
3929 "Waiting for IP state for idx = %d, state = 0x%x\n",
3930 ip_idx[idx], ip_state));
3931 if (ip_state == IP_ADDRSTATE_UNCONFIGURED ||
3932 ip_state == IP_ADDRSTATE_INVALID ||
3933 ip_state == IP_ADDRSTATE_PREFERRED ||
3934 ip_state == IP_ADDRSTATE_DEPRICATED ||
3935 ip_state == IP_ADDRSTATE_DISABLING)
3940 /* Break if all IP states checked */
3941 if ((ip_idx[0] == -1) &&
3942 (ip_idx[1] == -1) &&
3943 (ip_idx[2] == -1) &&
3946 schedule_timeout_uninterruptible(HZ);
3947 } while (time_after(wtime, jiffies));
3950 void qla4xxx_build_ddb_list(struct scsi_qla_host *ha, int is_reset)
3954 uint32_t idx = 0, next_idx = 0;
3955 uint32_t state = 0, conn_err = 0;
3957 struct dev_db_entry *fw_ddb_entry;
3958 struct ddb_entry *ddb_entry = NULL;
3959 dma_addr_t fw_ddb_dma;
3960 struct iscsi_cls_session *cls_sess;
3961 struct iscsi_session *sess;
3962 struct iscsi_cls_conn *cls_conn;
3963 struct iscsi_endpoint *ep;
3964 uint16_t cmds_max = 32, tmo = 0;
3965 uint32_t initial_cmdsn = 0;
3966 struct list_head list_st, list_nt; /* List of sendtargets */
3967 struct qla_ddb_index *st_ddb_idx, *st_ddb_idx_tmp;
3969 unsigned long wtime;
3970 struct qla_ddb_index *nt_ddb_idx;
3972 if (!test_bit(AF_LINK_UP, &ha->flags)) {
3973 set_bit(AF_BUILD_DDB_LIST, &ha->flags);
3974 ha->is_reset = is_reset;
3977 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
3980 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
3982 if (fw_ddb_entry == NULL) {
3983 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
3987 INIT_LIST_HEAD(&list_st);
3988 INIT_LIST_HEAD(&list_nt);
3989 fw_idx_size = sizeof(struct qla_ddb_index);
3991 for (idx = 0; idx < max_ddbs; idx = next_idx) {
3992 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry,
3994 &next_idx, &state, &conn_err,
3996 if (ret == QLA_ERROR)
3999 if (qla4xxx_verify_boot_idx(ha, idx) != QLA_SUCCESS)
4000 goto continue_next_st;
4002 /* Check if ST, add to the list_st */
4003 if (strlen((char *) fw_ddb_entry->iscsi_name) != 0)
4004 goto continue_next_st;
4006 st_ddb_idx = vzalloc(fw_idx_size);
4010 st_ddb_idx->fw_ddb_idx = idx;
4012 list_add_tail(&st_ddb_idx->list, &list_st);
4018 /* Before issuing conn open mbox, ensure all IPs states are configured
4019 * Note, conn open fails if IPs are not configured
4021 qla4xxx_wait_for_ip_configuration(ha);
4023 /* Go thru the STs and fire the sendtargets by issuing conn open mbx */
4024 list_for_each_entry_safe(st_ddb_idx, st_ddb_idx_tmp, &list_st, list) {
4025 qla4xxx_conn_open(ha, st_ddb_idx->fw_ddb_idx);
4028 /* Wait to ensure all sendtargets are done for min 12 sec wait */
4029 tmo = ((ha->def_timeout < LOGIN_TOV) ? LOGIN_TOV : ha->def_timeout);
4030 DEBUG2(ql4_printk(KERN_INFO, ha,
4031 "Default time to wait for build ddb %d\n", tmo));
4033 wtime = jiffies + (HZ * tmo);
4035 list_for_each_entry_safe(st_ddb_idx, st_ddb_idx_tmp, &list_st,
4037 ret = qla4xxx_get_fwddb_entry(ha,
4038 st_ddb_idx->fw_ddb_idx,
4039 NULL, 0, NULL, &next_idx,
4040 &state, &conn_err, NULL,
4042 if (ret == QLA_ERROR)
4045 if (state == DDB_DS_NO_CONNECTION_ACTIVE ||
4046 state == DDB_DS_SESSION_FAILED) {
4047 list_del_init(&st_ddb_idx->list);
4051 schedule_timeout_uninterruptible(HZ / 10);
4052 } while (time_after(wtime, jiffies));
4054 /* Free up the sendtargets list */
4055 list_for_each_entry_safe(st_ddb_idx, st_ddb_idx_tmp, &list_st, list) {
4056 list_del_init(&st_ddb_idx->list);
4060 for (idx = 0; idx < max_ddbs; idx = next_idx) {
4061 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry,
4063 &next_idx, &state, &conn_err,
4065 if (ret == QLA_ERROR)
4068 if (qla4xxx_verify_boot_idx(ha, idx) != QLA_SUCCESS)
4069 goto continue_next_nt;
4071 /* Check if NT, then add to list it */
4072 if (strlen((char *) fw_ddb_entry->iscsi_name) == 0)
4073 goto continue_next_nt;
4075 if (state == DDB_DS_NO_CONNECTION_ACTIVE ||
4076 state == DDB_DS_SESSION_FAILED) {
4077 DEBUG2(ql4_printk(KERN_INFO, ha,
4078 "Adding DDB to session = 0x%x\n",
4080 if (is_reset == INIT_ADAPTER) {
4081 nt_ddb_idx = vmalloc(fw_idx_size);
4085 nt_ddb_idx->fw_ddb_idx = idx;
4087 memcpy(&nt_ddb_idx->fw_ddb, fw_ddb_entry,
4088 sizeof(struct dev_db_entry));
4090 if (qla4xxx_is_flash_ddb_exists(ha, &list_nt,
4091 fw_ddb_entry) == QLA_SUCCESS) {
4093 goto continue_next_nt;
4095 list_add_tail(&nt_ddb_idx->list, &list_nt);
4096 } else if (is_reset == RESET_ADAPTER) {
4097 if (qla4xxx_is_session_exists(ha,
4098 fw_ddb_entry) == QLA_SUCCESS)
4099 goto continue_next_nt;
4102 /* Create session object, with INVALID_ENTRY,
4103 * the targer_id would get set when we issue the login
4105 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport,
4107 sizeof(struct ddb_entry),
4108 sizeof(struct ql4_task_data),
4109 initial_cmdsn, INVALID_ENTRY);
4114 * iscsi_session_setup increments the driver reference
4115 * count which wouldn't let the driver to be unloaded.
4116 * so calling module_put function to decrement the
4119 module_put(qla4xxx_iscsi_transport.owner);
4120 sess = cls_sess->dd_data;
4121 ddb_entry = sess->dd_data;
4122 ddb_entry->sess = cls_sess;
4124 cls_sess->recovery_tmo = ql4xsess_recovery_tmo;
4125 memcpy(&ddb_entry->fw_ddb_entry, fw_ddb_entry,
4126 sizeof(struct dev_db_entry));
4128 qla4xxx_setup_flash_ddb_entry(ha, ddb_entry);
4130 cls_conn = iscsi_conn_setup(cls_sess,
4131 sizeof(struct qla_conn),
4136 ddb_entry->conn = cls_conn;
4138 /* Setup ep, for displaying attributes in sysfs */
4139 ep = qla4xxx_get_ep_fwdb(ha, fw_ddb_entry);
4141 ep->conn = cls_conn;
4144 DEBUG2(ql4_printk(KERN_ERR, ha,
4145 "Unable to get ep\n"));
4148 /* Update sess/conn params */
4149 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess,
4152 if (is_reset == RESET_ADAPTER) {
4153 iscsi_block_session(cls_sess);
4154 /* Use the relogin path to discover new devices
4155 * by short-circuting the logic of setting
4156 * timer to relogin - instead set the flags
4157 * to initiate login right away.
4159 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
4160 set_bit(DF_RELOGIN, &ddb_entry->flags);
4168 qla4xxx_free_nt_list(&list_nt);
4170 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
4172 qla4xxx_free_ddb_index(ha);
4177 * qla4xxx_probe_adapter - callback function to probe HBA
4178 * @pdev: pointer to pci_dev structure
4179 * @pci_device_id: pointer to pci_device entry
4181 * This routine will probe for Qlogic 4xxx iSCSI host adapters.
4182 * It returns zero if successful. It also initializes all data necessary for
4185 static int __devinit qla4xxx_probe_adapter(struct pci_dev *pdev,
4186 const struct pci_device_id *ent)
4188 int ret = -ENODEV, status;
4189 struct Scsi_Host *host;
4190 struct scsi_qla_host *ha;
4191 uint8_t init_retry_count = 0;
4193 struct qla4_8xxx_legacy_intr_set *nx_legacy_intr;
4196 if (pci_enable_device(pdev))
4199 host = iscsi_host_alloc(&qla4xxx_driver_template, sizeof(*ha), 0);
4202 "qla4xxx: Couldn't allocate host from scsi layer!\n");
4203 goto probe_disable_device;
4206 /* Clear our data area */
4207 ha = to_qla_host(host);
4208 memset(ha, 0, sizeof(*ha));
4210 /* Save the information from PCI BIOS. */
4213 ha->host_no = host->host_no;
4215 pci_enable_pcie_error_reporting(pdev);
4217 /* Setup Runtime configurable options */
4218 if (is_qla8022(ha)) {
4219 ha->isp_ops = &qla4_8xxx_isp_ops;
4220 rwlock_init(&ha->hw_lock);
4221 ha->qdr_sn_window = -1;
4222 ha->ddr_mn_window = -1;
4223 ha->curr_window = 255;
4224 ha->func_num = PCI_FUNC(ha->pdev->devfn);
4225 nx_legacy_intr = &legacy_intr[ha->func_num];
4226 ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit;
4227 ha->nx_legacy_intr.tgt_status_reg =
4228 nx_legacy_intr->tgt_status_reg;
4229 ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg;
4230 ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg;
4232 ha->isp_ops = &qla4xxx_isp_ops;
4235 /* Set EEH reset type to fundamental if required by hba */
4237 pdev->needs_freset = 1;
4239 /* Configure PCI I/O space. */
4240 ret = ha->isp_ops->iospace_config(ha);
4242 goto probe_failed_ioconfig;
4244 ql4_printk(KERN_INFO, ha, "Found an ISP%04x, irq %d, iobase 0x%p\n",
4245 pdev->device, pdev->irq, ha->reg);
4247 qla4xxx_config_dma_addressing(ha);
4249 /* Initialize lists and spinlocks. */
4250 INIT_LIST_HEAD(&ha->free_srb_q);
4252 mutex_init(&ha->mbox_sem);
4253 mutex_init(&ha->chap_sem);
4254 init_completion(&ha->mbx_intr_comp);
4255 init_completion(&ha->disable_acb_comp);
4257 spin_lock_init(&ha->hardware_lock);
4259 /* Allocate dma buffers */
4260 if (qla4xxx_mem_alloc(ha)) {
4261 ql4_printk(KERN_WARNING, ha,
4262 "[ERROR] Failed to allocate memory for adapter\n");
4268 host->cmd_per_lun = 3;
4269 host->max_channel = 0;
4270 host->max_lun = MAX_LUNS - 1;
4271 host->max_id = MAX_TARGETS;
4272 host->max_cmd_len = IOCB_MAX_CDB_LEN;
4273 host->can_queue = MAX_SRBS ;
4274 host->transportt = qla4xxx_scsi_transport;
4276 ret = scsi_init_shared_tag_map(host, MAX_SRBS);
4278 ql4_printk(KERN_WARNING, ha,
4279 "%s: scsi_init_shared_tag_map failed\n", __func__);
4283 pci_set_drvdata(pdev, ha);
4285 ret = scsi_add_host(host, &pdev->dev);
4290 (void) qla4_8xxx_get_flash_info(ha);
4293 * Initialize the Host adapter request/response queues and
4295 * NOTE: interrupts enabled upon successful completion
4297 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER);
4298 while ((!test_bit(AF_ONLINE, &ha->flags)) &&
4299 init_retry_count++ < MAX_INIT_RETRIES) {
4301 if (is_qla8022(ha)) {
4302 qla4_8xxx_idc_lock(ha);
4303 dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
4304 qla4_8xxx_idc_unlock(ha);
4305 if (dev_state == QLA82XX_DEV_FAILED) {
4306 ql4_printk(KERN_WARNING, ha, "%s: don't retry "
4307 "initialize adapter. H/W is in failed state\n",
4312 DEBUG2(printk("scsi: %s: retrying adapter initialization "
4313 "(%d)\n", __func__, init_retry_count));
4315 if (ha->isp_ops->reset_chip(ha) == QLA_ERROR)
4318 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER);
4321 if (!test_bit(AF_ONLINE, &ha->flags)) {
4322 ql4_printk(KERN_WARNING, ha, "Failed to initialize adapter\n");
4324 if (is_qla8022(ha) && ql4xdontresethba) {
4325 /* Put the device in failed state. */
4326 DEBUG2(printk(KERN_ERR "HW STATE: FAILED\n"));
4327 qla4_8xxx_idc_lock(ha);
4328 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
4329 QLA82XX_DEV_FAILED);
4330 qla4_8xxx_idc_unlock(ha);
4336 /* Startup the kernel thread for this host adapter. */
4337 DEBUG2(printk("scsi: %s: Starting kernel thread for "
4338 "qla4xxx_dpc\n", __func__));
4339 sprintf(buf, "qla4xxx_%lu_dpc", ha->host_no);
4340 ha->dpc_thread = create_singlethread_workqueue(buf);
4341 if (!ha->dpc_thread) {
4342 ql4_printk(KERN_WARNING, ha, "Unable to start DPC thread!\n");
4346 INIT_WORK(&ha->dpc_work, qla4xxx_do_dpc);
4348 sprintf(buf, "qla4xxx_%lu_task", ha->host_no);
4349 ha->task_wq = alloc_workqueue(buf, WQ_MEM_RECLAIM, 1);
4351 ql4_printk(KERN_WARNING, ha, "Unable to start task thread!\n");
4356 /* For ISP-82XX, request_irqs is called in qla4_8xxx_load_risc
4357 * (which is called indirectly by qla4xxx_initialize_adapter),
4358 * so that irqs will be registered after crbinit but before
4361 if (!is_qla8022(ha)) {
4362 ret = qla4xxx_request_irqs(ha);
4364 ql4_printk(KERN_WARNING, ha, "Failed to reserve "
4365 "interrupt %d already in use.\n", pdev->irq);
4370 pci_save_state(ha->pdev);
4371 ha->isp_ops->enable_intrs(ha);
4373 /* Start timer thread. */
4374 qla4xxx_start_timer(ha, qla4xxx_timer, 1);
4376 set_bit(AF_INIT_DONE, &ha->flags);
4379 " QLogic iSCSI HBA Driver version: %s\n"
4380 " QLogic ISP%04x @ %s, host#=%ld, fw=%02d.%02d.%02d.%02d\n",
4381 qla4xxx_version_str, ha->pdev->device, pci_name(ha->pdev),
4382 ha->host_no, ha->firmware_version[0], ha->firmware_version[1],
4383 ha->patch_number, ha->build_number);
4385 if (qla4xxx_setup_boot_info(ha))
4386 ql4_printk(KERN_ERR, ha, "%s:ISCSI boot info setup failed\n",
4389 /* Perform the build ddb list and login to each */
4390 qla4xxx_build_ddb_list(ha, INIT_ADAPTER);
4391 iscsi_host_for_each_session(ha->host, qla4xxx_login_flash_ddb);
4393 qla4xxx_create_chap_list(ha);
4395 qla4xxx_create_ifaces(ha);
4399 scsi_remove_host(ha->host);
4402 qla4xxx_free_adapter(ha);
4404 probe_failed_ioconfig:
4405 pci_disable_pcie_error_reporting(pdev);
4406 scsi_host_put(ha->host);
4408 probe_disable_device:
4409 pci_disable_device(pdev);
4415 * qla4xxx_prevent_other_port_reinit - prevent other port from re-initialize
4416 * @ha: pointer to adapter structure
4418 * Mark the other ISP-4xxx port to indicate that the driver is being removed,
4419 * so that the other port will not re-initialize while in the process of
4420 * removing the ha due to driver unload or hba hotplug.
4422 static void qla4xxx_prevent_other_port_reinit(struct scsi_qla_host *ha)
4424 struct scsi_qla_host *other_ha = NULL;
4425 struct pci_dev *other_pdev = NULL;
4426 int fn = ISP4XXX_PCI_FN_2;
4428 /*iscsi function numbers for ISP4xxx is 1 and 3*/
4429 if (PCI_FUNC(ha->pdev->devfn) & BIT_1)
4430 fn = ISP4XXX_PCI_FN_1;
4433 pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus),
4434 ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
4437 /* Get other_ha if other_pdev is valid and state is enable*/
4439 if (atomic_read(&other_pdev->enable_cnt)) {
4440 other_ha = pci_get_drvdata(other_pdev);
4442 set_bit(AF_HA_REMOVAL, &other_ha->flags);
4443 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: "
4444 "Prevent %s reinit\n", __func__,
4445 dev_name(&other_ha->pdev->dev)));
4448 pci_dev_put(other_pdev);
4452 static void qla4xxx_destroy_fw_ddb_session(struct scsi_qla_host *ha)
4454 struct ddb_entry *ddb_entry;
4458 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
4460 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
4461 if ((ddb_entry != NULL) &&
4462 (ddb_entry->ddb_type == FLASH_DDB)) {
4464 options = LOGOUT_OPTION_CLOSE_SESSION;
4465 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options)
4467 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n",
4470 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
4472 * we have decremented the reference count of the driver
4473 * when we setup the session to have the driver unload
4474 * to be seamless without actually destroying the
4477 try_module_get(qla4xxx_iscsi_transport.owner);
4478 iscsi_destroy_endpoint(ddb_entry->conn->ep);
4479 qla4xxx_free_ddb(ha, ddb_entry);
4480 iscsi_session_teardown(ddb_entry->sess);
4485 * qla4xxx_remove_adapter - calback function to remove adapter.
4486 * @pci_dev: PCI device pointer
4488 static void __devexit qla4xxx_remove_adapter(struct pci_dev *pdev)
4490 struct scsi_qla_host *ha;
4492 ha = pci_get_drvdata(pdev);
4494 if (!is_qla8022(ha))
4495 qla4xxx_prevent_other_port_reinit(ha);
4497 /* destroy iface from sysfs */
4498 qla4xxx_destroy_ifaces(ha);
4500 if ((!ql4xdisablesysfsboot) && ha->boot_kset)
4501 iscsi_boot_destroy_kset(ha->boot_kset);
4503 qla4xxx_destroy_fw_ddb_session(ha);
4505 scsi_remove_host(ha->host);
4507 qla4xxx_free_adapter(ha);
4509 scsi_host_put(ha->host);
4511 pci_disable_pcie_error_reporting(pdev);
4512 pci_disable_device(pdev);
4513 pci_set_drvdata(pdev, NULL);
4517 * qla4xxx_config_dma_addressing() - Configure OS DMA addressing method.
4520 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
4521 * supported addressing method.
4523 static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha)
4527 /* Update our PCI device dma_mask for full 64 bit mask */
4528 if (pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(64)) == 0) {
4529 if (pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) {
4530 dev_dbg(&ha->pdev->dev,
4531 "Failed to set 64 bit PCI consistent mask; "
4533 retval = pci_set_consistent_dma_mask(ha->pdev,
4537 retval = pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(32));
4540 static int qla4xxx_slave_alloc(struct scsi_device *sdev)
4542 struct iscsi_cls_session *cls_sess;
4543 struct iscsi_session *sess;
4544 struct ddb_entry *ddb;
4545 int queue_depth = QL4_DEF_QDEPTH;
4547 cls_sess = starget_to_session(sdev->sdev_target);
4548 sess = cls_sess->dd_data;
4549 ddb = sess->dd_data;
4551 sdev->hostdata = ddb;
4552 sdev->tagged_supported = 1;
4554 if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU)
4555 queue_depth = ql4xmaxqdepth;
4557 scsi_activate_tcq(sdev, queue_depth);
4561 static int qla4xxx_slave_configure(struct scsi_device *sdev)
4563 sdev->tagged_supported = 1;
4567 static void qla4xxx_slave_destroy(struct scsi_device *sdev)
4569 scsi_deactivate_tcq(sdev, 1);
4573 * qla4xxx_del_from_active_array - returns an active srb
4574 * @ha: Pointer to host adapter structure.
4575 * @index: index into the active_array
4577 * This routine removes and returns the srb at the specified index
4579 struct srb *qla4xxx_del_from_active_array(struct scsi_qla_host *ha,
4582 struct srb *srb = NULL;
4583 struct scsi_cmnd *cmd = NULL;
4585 cmd = scsi_host_find_tag(ha->host, index);
4589 srb = (struct srb *)CMD_SP(cmd);
4593 /* update counters */
4594 if (srb->flags & SRB_DMA_VALID) {
4595 ha->req_q_count += srb->iocb_cnt;
4596 ha->iocb_cnt -= srb->iocb_cnt;
4598 srb->cmd->host_scribble =
4599 (unsigned char *)(unsigned long) MAX_SRBS;
4605 * qla4xxx_eh_wait_on_command - waits for command to be returned by firmware
4606 * @ha: Pointer to host adapter structure.
4607 * @cmd: Scsi Command to wait on.
4609 * This routine waits for the command to be returned by the Firmware
4610 * for some max time.
4612 static int qla4xxx_eh_wait_on_command(struct scsi_qla_host *ha,
4613 struct scsi_cmnd *cmd)
4617 uint32_t max_wait_time = EH_WAIT_CMD_TOV;
4620 /* Dont wait on command if PCI error is being handled
4623 if (unlikely(pci_channel_offline(ha->pdev)) ||
4624 (test_bit(AF_EEH_BUSY, &ha->flags))) {
4625 ql4_printk(KERN_WARNING, ha, "scsi%ld: Return from %s\n",
4626 ha->host_no, __func__);
4631 /* Checking to see if its returned to OS */
4632 rp = (struct srb *) CMD_SP(cmd);
4639 } while (max_wait_time--);
4645 * qla4xxx_wait_for_hba_online - waits for HBA to come online
4646 * @ha: Pointer to host adapter structure
4648 static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha)
4650 unsigned long wait_online;
4652 wait_online = jiffies + (HBA_ONLINE_TOV * HZ);
4653 while (time_before(jiffies, wait_online)) {
4665 * qla4xxx_eh_wait_for_commands - wait for active cmds to finish.
4666 * @ha: pointer to HBA
4670 * This function waits for all outstanding commands to a lun to complete. It
4671 * returns 0 if all pending commands are returned and 1 otherwise.
4673 static int qla4xxx_eh_wait_for_commands(struct scsi_qla_host *ha,
4674 struct scsi_target *stgt,
4675 struct scsi_device *sdev)
4679 struct scsi_cmnd *cmd;
4682 * Waiting for all commands for the designated target or dev
4683 * in the active array
4685 for (cnt = 0; cnt < ha->host->can_queue; cnt++) {
4686 cmd = scsi_host_find_tag(ha->host, cnt);
4687 if (cmd && stgt == scsi_target(cmd->device) &&
4688 (!sdev || sdev == cmd->device)) {
4689 if (!qla4xxx_eh_wait_on_command(ha, cmd)) {
4699 * qla4xxx_eh_abort - callback for abort task.
4700 * @cmd: Pointer to Linux's SCSI command structure
4702 * This routine is called by the Linux OS to abort the specified
4705 static int qla4xxx_eh_abort(struct scsi_cmnd *cmd)
4707 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
4708 unsigned int id = cmd->device->id;
4709 unsigned int lun = cmd->device->lun;
4710 unsigned long flags;
4711 struct srb *srb = NULL;
4715 ql4_printk(KERN_INFO, ha,
4716 "scsi%ld:%d:%d: Abort command issued cmd=%p\n",
4717 ha->host_no, id, lun, cmd);
4719 spin_lock_irqsave(&ha->hardware_lock, flags);
4720 srb = (struct srb *) CMD_SP(cmd);
4722 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4725 kref_get(&srb->srb_ref);
4726 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4728 if (qla4xxx_abort_task(ha, srb) != QLA_SUCCESS) {
4729 DEBUG3(printk("scsi%ld:%d:%d: Abort_task mbx failed.\n",
4730 ha->host_no, id, lun));
4733 DEBUG3(printk("scsi%ld:%d:%d: Abort_task mbx success.\n",
4734 ha->host_no, id, lun));
4738 kref_put(&srb->srb_ref, qla4xxx_srb_compl);
4740 /* Wait for command to complete */
4742 if (!qla4xxx_eh_wait_on_command(ha, cmd)) {
4743 DEBUG2(printk("scsi%ld:%d:%d: Abort handler timed out\n",
4744 ha->host_no, id, lun));
4749 ql4_printk(KERN_INFO, ha,
4750 "scsi%ld:%d:%d: Abort command - %s\n",
4751 ha->host_no, id, lun, (ret == SUCCESS) ? "succeeded" : "failed");
4757 * qla4xxx_eh_device_reset - callback for target reset.
4758 * @cmd: Pointer to Linux's SCSI command structure
4760 * This routine is called by the Linux OS to reset all luns on the
4763 static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd)
4765 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
4766 struct ddb_entry *ddb_entry = cmd->device->hostdata;
4767 int ret = FAILED, stat;
4772 ret = iscsi_block_scsi_eh(cmd);
4777 ql4_printk(KERN_INFO, ha,
4778 "scsi%ld:%d:%d:%d: DEVICE RESET ISSUED.\n", ha->host_no,
4779 cmd->device->channel, cmd->device->id, cmd->device->lun);
4781 DEBUG2(printk(KERN_INFO
4782 "scsi%ld: DEVICE_RESET cmd=%p jiffies = 0x%lx, to=%x,"
4783 "dpc_flags=%lx, status=%x allowed=%d\n", ha->host_no,
4784 cmd, jiffies, cmd->request->timeout / HZ,
4785 ha->dpc_flags, cmd->result, cmd->allowed));
4787 /* FIXME: wait for hba to go online */
4788 stat = qla4xxx_reset_lun(ha, ddb_entry, cmd->device->lun);
4789 if (stat != QLA_SUCCESS) {
4790 ql4_printk(KERN_INFO, ha, "DEVICE RESET FAILED. %d\n", stat);
4791 goto eh_dev_reset_done;
4794 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device),
4796 ql4_printk(KERN_INFO, ha,
4797 "DEVICE RESET FAILED - waiting for "
4799 goto eh_dev_reset_done;
4803 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun,
4804 MM_LUN_RESET) != QLA_SUCCESS)
4805 goto eh_dev_reset_done;
4807 ql4_printk(KERN_INFO, ha,
4808 "scsi(%ld:%d:%d:%d): DEVICE RESET SUCCEEDED.\n",
4809 ha->host_no, cmd->device->channel, cmd->device->id,
4820 * qla4xxx_eh_target_reset - callback for target reset.
4821 * @cmd: Pointer to Linux's SCSI command structure
4823 * This routine is called by the Linux OS to reset the target.
4825 static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd)
4827 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
4828 struct ddb_entry *ddb_entry = cmd->device->hostdata;
4834 ret = iscsi_block_scsi_eh(cmd);
4838 starget_printk(KERN_INFO, scsi_target(cmd->device),
4839 "WARM TARGET RESET ISSUED.\n");
4841 DEBUG2(printk(KERN_INFO
4842 "scsi%ld: TARGET_DEVICE_RESET cmd=%p jiffies = 0x%lx, "
4843 "to=%x,dpc_flags=%lx, status=%x allowed=%d\n",
4844 ha->host_no, cmd, jiffies, cmd->request->timeout / HZ,
4845 ha->dpc_flags, cmd->result, cmd->allowed));
4847 stat = qla4xxx_reset_target(ha, ddb_entry);
4848 if (stat != QLA_SUCCESS) {
4849 starget_printk(KERN_INFO, scsi_target(cmd->device),
4850 "WARM TARGET RESET FAILED.\n");
4854 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device),
4856 starget_printk(KERN_INFO, scsi_target(cmd->device),
4857 "WARM TARGET DEVICE RESET FAILED - "
4858 "waiting for commands.\n");
4863 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun,
4864 MM_TGT_WARM_RESET) != QLA_SUCCESS) {
4865 starget_printk(KERN_INFO, scsi_target(cmd->device),
4866 "WARM TARGET DEVICE RESET FAILED - "
4867 "marker iocb failed.\n");
4871 starget_printk(KERN_INFO, scsi_target(cmd->device),
4872 "WARM TARGET RESET SUCCEEDED.\n");
4877 * qla4xxx_is_eh_active - check if error handler is running
4878 * @shost: Pointer to SCSI Host struct
4880 * This routine finds that if reset host is called in EH
4881 * scenario or from some application like sg_reset
4883 static int qla4xxx_is_eh_active(struct Scsi_Host *shost)
4885 if (shost->shost_state == SHOST_RECOVERY)
4891 * qla4xxx_eh_host_reset - kernel callback
4892 * @cmd: Pointer to Linux's SCSI command structure
4894 * This routine is invoked by the Linux kernel to perform fatal error
4895 * recovery on the specified adapter.
4897 static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd)
4899 int return_status = FAILED;
4900 struct scsi_qla_host *ha;
4902 ha = to_qla_host(cmd->device->host);
4904 if (ql4xdontresethba) {
4905 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n",
4906 ha->host_no, __func__));
4908 /* Clear outstanding srb in queues */
4909 if (qla4xxx_is_eh_active(cmd->device->host))
4910 qla4xxx_abort_active_cmds(ha, DID_ABORT << 16);
4915 ql4_printk(KERN_INFO, ha,
4916 "scsi(%ld:%d:%d:%d): HOST RESET ISSUED.\n", ha->host_no,
4917 cmd->device->channel, cmd->device->id, cmd->device->lun);
4919 if (qla4xxx_wait_for_hba_online(ha) != QLA_SUCCESS) {
4920 DEBUG2(printk("scsi%ld:%d: %s: Unable to reset host. Adapter "
4921 "DEAD.\n", ha->host_no, cmd->device->channel,
4927 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
4929 set_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
4931 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4934 if (qla4xxx_recover_adapter(ha) == QLA_SUCCESS)
4935 return_status = SUCCESS;
4937 ql4_printk(KERN_INFO, ha, "HOST RESET %s.\n",
4938 return_status == FAILED ? "FAILED" : "SUCCEEDED");
4940 return return_status;
4943 static int qla4xxx_context_reset(struct scsi_qla_host *ha)
4945 uint32_t mbox_cmd[MBOX_REG_COUNT];
4946 uint32_t mbox_sts[MBOX_REG_COUNT];
4947 struct addr_ctrl_blk_def *acb = NULL;
4948 uint32_t acb_len = sizeof(struct addr_ctrl_blk_def);
4949 int rval = QLA_SUCCESS;
4952 acb = dma_alloc_coherent(&ha->pdev->dev,
4953 sizeof(struct addr_ctrl_blk_def),
4954 &acb_dma, GFP_KERNEL);
4956 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc acb\n",
4959 goto exit_port_reset;
4962 memset(acb, 0, acb_len);
4964 rval = qla4xxx_get_acb(ha, acb_dma, PRIMARI_ACB, acb_len);
4965 if (rval != QLA_SUCCESS) {
4970 rval = qla4xxx_disable_acb(ha);
4971 if (rval != QLA_SUCCESS) {
4976 wait_for_completion_timeout(&ha->disable_acb_comp,
4977 DISABLE_ACB_TOV * HZ);
4979 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], acb_dma);
4980 if (rval != QLA_SUCCESS) {
4986 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk_def),
4989 DEBUG2(ql4_printk(KERN_INFO, ha, "%s %s\n", __func__,
4990 rval == QLA_SUCCESS ? "SUCCEEDED" : "FAILED"));
4994 static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type)
4996 struct scsi_qla_host *ha = to_qla_host(shost);
4997 int rval = QLA_SUCCESS;
4999 if (ql4xdontresethba) {
5000 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Don't Reset HBA\n",
5003 goto exit_host_reset;
5006 rval = qla4xxx_wait_for_hba_online(ha);
5007 if (rval != QLA_SUCCESS) {
5008 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Unable to reset host "
5009 "adapter\n", __func__));
5011 goto exit_host_reset;
5014 if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
5015 goto recover_adapter;
5017 switch (reset_type) {
5018 case SCSI_ADAPTER_RESET:
5019 set_bit(DPC_RESET_HA, &ha->dpc_flags);
5021 case SCSI_FIRMWARE_RESET:
5022 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
5024 /* set firmware context reset */
5025 set_bit(DPC_RESET_HA_FW_CONTEXT,
5028 rval = qla4xxx_context_reset(ha);
5029 goto exit_host_reset;
5036 rval = qla4xxx_recover_adapter(ha);
5037 if (rval != QLA_SUCCESS) {
5038 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: recover adapter fail\n",
5047 /* PCI AER driver recovers from all correctable errors w/o
5048 * driver intervention. For uncorrectable errors PCI AER
5049 * driver calls the following device driver's callbacks
5051 * - Fatal Errors - link_reset
5052 * - Non-Fatal Errors - driver's pci_error_detected() which
5053 * returns CAN_RECOVER, NEED_RESET or DISCONNECT.
5055 * PCI AER driver calls
5056 * CAN_RECOVER - driver's pci_mmio_enabled(), mmio_enabled
5057 * returns RECOVERED or NEED_RESET if fw_hung
5058 * NEED_RESET - driver's slot_reset()
5059 * DISCONNECT - device is dead & cannot recover
5060 * RECOVERED - driver's pci_resume()
5062 static pci_ers_result_t
5063 qla4xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
5065 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
5067 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: error detected:state %x\n",
5068 ha->host_no, __func__, state);
5070 if (!is_aer_supported(ha))
5071 return PCI_ERS_RESULT_NONE;
5074 case pci_channel_io_normal:
5075 clear_bit(AF_EEH_BUSY, &ha->flags);
5076 return PCI_ERS_RESULT_CAN_RECOVER;
5077 case pci_channel_io_frozen:
5078 set_bit(AF_EEH_BUSY, &ha->flags);
5079 qla4xxx_mailbox_premature_completion(ha);
5080 qla4xxx_free_irqs(ha);
5081 pci_disable_device(pdev);
5082 /* Return back all IOs */
5083 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
5084 return PCI_ERS_RESULT_NEED_RESET;
5085 case pci_channel_io_perm_failure:
5086 set_bit(AF_EEH_BUSY, &ha->flags);
5087 set_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags);
5088 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
5089 return PCI_ERS_RESULT_DISCONNECT;
5091 return PCI_ERS_RESULT_NEED_RESET;
5095 * qla4xxx_pci_mmio_enabled() gets called if
5096 * qla4xxx_pci_error_detected() returns PCI_ERS_RESULT_CAN_RECOVER
5097 * and read/write to the device still works.
5099 static pci_ers_result_t
5100 qla4xxx_pci_mmio_enabled(struct pci_dev *pdev)
5102 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
5104 if (!is_aer_supported(ha))
5105 return PCI_ERS_RESULT_NONE;
5107 return PCI_ERS_RESULT_RECOVERED;
5110 static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha)
5112 uint32_t rval = QLA_ERROR;
5115 struct pci_dev *other_pdev = NULL;
5117 ql4_printk(KERN_WARNING, ha, "scsi%ld: In %s\n", ha->host_no, __func__);
5119 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
5121 if (test_bit(AF_ONLINE, &ha->flags)) {
5122 clear_bit(AF_ONLINE, &ha->flags);
5123 clear_bit(AF_LINK_UP, &ha->flags);
5124 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session);
5125 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
5128 fn = PCI_FUNC(ha->pdev->devfn);
5131 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Finding PCI device at "
5132 "func %x\n", ha->host_no, __func__, fn);
5133 /* Get the pci device given the domain, bus,
5134 * slot/function number */
5136 pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus),
5137 ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
5143 if (atomic_read(&other_pdev->enable_cnt)) {
5144 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Found PCI "
5145 "func in enabled state%x\n", ha->host_no,
5147 pci_dev_put(other_pdev);
5150 pci_dev_put(other_pdev);
5153 /* The first function on the card, the reset owner will
5154 * start & initialize the firmware. The other functions
5155 * on the card will reset the firmware context
5158 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn being reset "
5159 "0x%x is the owner\n", ha->host_no, __func__,
5162 qla4_8xxx_idc_lock(ha);
5163 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
5166 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION,
5167 QLA82XX_IDC_VERSION);
5169 qla4_8xxx_idc_unlock(ha);
5170 clear_bit(AF_FW_RECOVERY, &ha->flags);
5171 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
5172 qla4_8xxx_idc_lock(ha);
5174 if (rval != QLA_SUCCESS) {
5175 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: "
5176 "FAILED\n", ha->host_no, __func__);
5177 qla4_8xxx_clear_drv_active(ha);
5178 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
5179 QLA82XX_DEV_FAILED);
5181 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: "
5182 "READY\n", ha->host_no, __func__);
5183 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
5185 /* Clear driver state register */
5186 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_STATE, 0);
5187 qla4_8xxx_set_drv_active(ha);
5188 ret = qla4xxx_request_irqs(ha);
5190 ql4_printk(KERN_WARNING, ha, "Failed to "
5191 "reserve interrupt %d already in use.\n",
5195 ha->isp_ops->enable_intrs(ha);
5199 qla4_8xxx_idc_unlock(ha);
5201 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn 0x%x is not "
5202 "the reset owner\n", ha->host_no, __func__,
5204 if ((qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE) ==
5205 QLA82XX_DEV_READY)) {
5206 clear_bit(AF_FW_RECOVERY, &ha->flags);
5207 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
5208 if (rval == QLA_SUCCESS) {
5209 ret = qla4xxx_request_irqs(ha);
5211 ql4_printk(KERN_WARNING, ha, "Failed to"
5212 " reserve interrupt %d already in"
5213 " use.\n", ha->pdev->irq);
5216 ha->isp_ops->enable_intrs(ha);
5220 qla4_8xxx_idc_lock(ha);
5221 qla4_8xxx_set_drv_active(ha);
5222 qla4_8xxx_idc_unlock(ha);
5225 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
5229 static pci_ers_result_t
5230 qla4xxx_pci_slot_reset(struct pci_dev *pdev)
5232 pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
5233 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
5236 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: slot_reset\n",
5237 ha->host_no, __func__);
5239 if (!is_aer_supported(ha))
5240 return PCI_ERS_RESULT_NONE;
5242 /* Restore the saved state of PCIe device -
5243 * BAR registers, PCI Config space, PCIX, MSI,
5246 pci_restore_state(pdev);
5248 /* pci_restore_state() clears the saved_state flag of the device
5249 * save restored state which resets saved_state flag
5251 pci_save_state(pdev);
5253 /* Initialize device or resume if in suspended state */
5254 rc = pci_enable_device(pdev);
5256 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Can't re-enable "
5257 "device after reset\n", ha->host_no, __func__);
5258 goto exit_slot_reset;
5261 ha->isp_ops->disable_intrs(ha);
5263 if (is_qla8022(ha)) {
5264 if (qla4_8xxx_error_recovery(ha) == QLA_SUCCESS) {
5265 ret = PCI_ERS_RESULT_RECOVERED;
5266 goto exit_slot_reset;
5268 goto exit_slot_reset;
5272 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Return=%x\n"
5273 "device after reset\n", ha->host_no, __func__, ret);
5278 qla4xxx_pci_resume(struct pci_dev *pdev)
5280 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
5283 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: pci_resume\n",
5284 ha->host_no, __func__);
5286 ret = qla4xxx_wait_for_hba_online(ha);
5287 if (ret != QLA_SUCCESS) {
5288 ql4_printk(KERN_ERR, ha, "scsi%ld: %s: the device failed to "
5289 "resume I/O from slot/link_reset\n", ha->host_no,
5293 pci_cleanup_aer_uncorrect_error_status(pdev);
5294 clear_bit(AF_EEH_BUSY, &ha->flags);
5297 static struct pci_error_handlers qla4xxx_err_handler = {
5298 .error_detected = qla4xxx_pci_error_detected,
5299 .mmio_enabled = qla4xxx_pci_mmio_enabled,
5300 .slot_reset = qla4xxx_pci_slot_reset,
5301 .resume = qla4xxx_pci_resume,
5304 static struct pci_device_id qla4xxx_pci_tbl[] = {
5306 .vendor = PCI_VENDOR_ID_QLOGIC,
5307 .device = PCI_DEVICE_ID_QLOGIC_ISP4010,
5308 .subvendor = PCI_ANY_ID,
5309 .subdevice = PCI_ANY_ID,
5312 .vendor = PCI_VENDOR_ID_QLOGIC,
5313 .device = PCI_DEVICE_ID_QLOGIC_ISP4022,
5314 .subvendor = PCI_ANY_ID,
5315 .subdevice = PCI_ANY_ID,
5318 .vendor = PCI_VENDOR_ID_QLOGIC,
5319 .device = PCI_DEVICE_ID_QLOGIC_ISP4032,
5320 .subvendor = PCI_ANY_ID,
5321 .subdevice = PCI_ANY_ID,
5324 .vendor = PCI_VENDOR_ID_QLOGIC,
5325 .device = PCI_DEVICE_ID_QLOGIC_ISP8022,
5326 .subvendor = PCI_ANY_ID,
5327 .subdevice = PCI_ANY_ID,
5331 MODULE_DEVICE_TABLE(pci, qla4xxx_pci_tbl);
5333 static struct pci_driver qla4xxx_pci_driver = {
5334 .name = DRIVER_NAME,
5335 .id_table = qla4xxx_pci_tbl,
5336 .probe = qla4xxx_probe_adapter,
5337 .remove = qla4xxx_remove_adapter,
5338 .err_handler = &qla4xxx_err_handler,
5341 static int __init qla4xxx_module_init(void)
5345 /* Allocate cache for SRBs. */
5346 srb_cachep = kmem_cache_create("qla4xxx_srbs", sizeof(struct srb), 0,
5347 SLAB_HWCACHE_ALIGN, NULL);
5348 if (srb_cachep == NULL) {
5350 "%s: Unable to allocate SRB cache..."
5351 "Failing load!\n", DRIVER_NAME);
5356 /* Derive version string. */
5357 strcpy(qla4xxx_version_str, QLA4XXX_DRIVER_VERSION);
5358 if (ql4xextended_error_logging)
5359 strcat(qla4xxx_version_str, "-debug");
5361 qla4xxx_scsi_transport =
5362 iscsi_register_transport(&qla4xxx_iscsi_transport);
5363 if (!qla4xxx_scsi_transport){
5365 goto release_srb_cache;
5368 ret = pci_register_driver(&qla4xxx_pci_driver);
5370 goto unregister_transport;
5372 printk(KERN_INFO "QLogic iSCSI HBA Driver\n");
5375 unregister_transport:
5376 iscsi_unregister_transport(&qla4xxx_iscsi_transport);
5378 kmem_cache_destroy(srb_cachep);
5383 static void __exit qla4xxx_module_exit(void)
5385 pci_unregister_driver(&qla4xxx_pci_driver);
5386 iscsi_unregister_transport(&qla4xxx_iscsi_transport);
5387 kmem_cache_destroy(srb_cachep);
5390 module_init(qla4xxx_module_init);
5391 module_exit(qla4xxx_module_exit);
5393 MODULE_AUTHOR("QLogic Corporation");
5394 MODULE_DESCRIPTION("QLogic iSCSI HBA Driver");
5395 MODULE_LICENSE("GPL");
5396 MODULE_VERSION(QLA4XXX_DRIVER_VERSION);