projects / GitHub / moto-9609 / android_kernel_motorola_exynos9610.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux
[GitHub/moto-9609/android_kernel_motorola_exynos9610.git] / drivers / scsi / qla4xxx / ql4_os.c
1 /*
2 * QLogic iSCSI HBA Driver
3 * Copyright (c) 2003-2013 QLogic Corporation
4 *
5 * See LICENSE.qla4xxx for copyright and licensing details.
6 */
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>
12
13 #include <scsi/scsi_tcq.h>
14 #include <scsi/scsicam.h>
15
16 #include "ql4_def.h"
17 #include "ql4_version.h"
18 #include "ql4_glbl.h"
19 #include "ql4_dbg.h"
20 #include "ql4_inline.h"
21 #include "ql4_83xx.h"
22
23 /*
24 * Driver version
25 */
26 static char qla4xxx_version_str[40];
27
28 /*
29 * SRB allocation cache
30 */
31 static struct kmem_cache *srb_cachep;
32
33 /*
34 * Module parameter information and variables
35 */
36 static int ql4xdisablesysfsboot = 1;
37 module_param(ql4xdisablesysfsboot, int, S_IRUGO | S_IWUSR);
38 MODULE_PARM_DESC(ql4xdisablesysfsboot,
39 " Set to disable exporting boot targets to sysfs.\n"
40 "\t\t 0 - Export boot targets\n"
41 "\t\t 1 - Do not export boot targets (Default)");
42
43 int ql4xdontresethba;
44 module_param(ql4xdontresethba, int, S_IRUGO | S_IWUSR);
45 MODULE_PARM_DESC(ql4xdontresethba,
46 " Don't reset the HBA for driver recovery.\n"
47 "\t\t 0 - It will reset HBA (Default)\n"
48 "\t\t 1 - It will NOT reset HBA");
49
50 int ql4xextended_error_logging;
51 module_param(ql4xextended_error_logging, int, S_IRUGO | S_IWUSR);
52 MODULE_PARM_DESC(ql4xextended_error_logging,
53 " Option to enable extended error logging.\n"
54 "\t\t 0 - no logging (Default)\n"
55 "\t\t 2 - debug logging");
56
57 int ql4xenablemsix = 1;
58 module_param(ql4xenablemsix, int, S_IRUGO|S_IWUSR);
59 MODULE_PARM_DESC(ql4xenablemsix,
60 " Set to enable MSI or MSI-X interrupt mechanism.\n"
61 "\t\t 0 = enable INTx interrupt mechanism.\n"
62 "\t\t 1 = enable MSI-X interrupt mechanism (Default).\n"
63 "\t\t 2 = enable MSI interrupt mechanism.");
64
65 #define QL4_DEF_QDEPTH 32
66 static int ql4xmaxqdepth = QL4_DEF_QDEPTH;
67 module_param(ql4xmaxqdepth, int, S_IRUGO | S_IWUSR);
68 MODULE_PARM_DESC(ql4xmaxqdepth,
69 " Maximum queue depth to report for target devices.\n"
70 "\t\t Default: 32.");
71
72 static int ql4xqfulltracking = 1;
73 module_param(ql4xqfulltracking, int, S_IRUGO | S_IWUSR);
74 MODULE_PARM_DESC(ql4xqfulltracking,
75 " Enable or disable dynamic tracking and adjustment of\n"
76 "\t\t scsi device queue depth.\n"
77 "\t\t 0 - Disable.\n"
78 "\t\t 1 - Enable. (Default)");
79
80 static int ql4xsess_recovery_tmo = QL4_SESS_RECOVERY_TMO;
81 module_param(ql4xsess_recovery_tmo, int, S_IRUGO);
82 MODULE_PARM_DESC(ql4xsess_recovery_tmo,
83 " Target Session Recovery Timeout.\n"
84 "\t\t Default: 120 sec.");
85
86 int ql4xmdcapmask = 0x1F;
87 module_param(ql4xmdcapmask, int, S_IRUGO);
88 MODULE_PARM_DESC(ql4xmdcapmask,
89 " Set the Minidump driver capture mask level.\n"
90 "\t\t Default is 0x1F.\n"
91 "\t\t Can be set to 0x3, 0x7, 0xF, 0x1F, 0x3F, 0x7F");
92
93 int ql4xenablemd = 1;
94 module_param(ql4xenablemd, int, S_IRUGO | S_IWUSR);
95 MODULE_PARM_DESC(ql4xenablemd,
96 " Set to enable minidump.\n"
97 "\t\t 0 - disable minidump\n"
98 "\t\t 1 - enable minidump (Default)");
99
100 static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha);
101 /*
102 * SCSI host template entry points
103 */
104 static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha);
105
106 /*
107 * iSCSI template entry points
108 */
109 static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess,
110 enum iscsi_param param, char *buf);
111 static int qla4xxx_conn_get_param(struct iscsi_cls_conn *conn,
112 enum iscsi_param param, char *buf);
113 static int qla4xxx_host_get_param(struct Scsi_Host *shost,
114 enum iscsi_host_param param, char *buf);
115 static int qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data,
116 uint32_t len);
117 static int qla4xxx_get_iface_param(struct iscsi_iface *iface,
118 enum iscsi_param_type param_type,
119 int param, char *buf);
120 static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc);
121 static struct iscsi_endpoint *qla4xxx_ep_connect(struct Scsi_Host *shost,
122 struct sockaddr *dst_addr,
123 int non_blocking);
124 static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms);
125 static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep);
126 static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep,
127 enum iscsi_param param, char *buf);
128 static int qla4xxx_conn_start(struct iscsi_cls_conn *conn);
129 static struct iscsi_cls_conn *
130 qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx);
131 static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session,
132 struct iscsi_cls_conn *cls_conn,
133 uint64_t transport_fd, int is_leading);
134 static void qla4xxx_conn_destroy(struct iscsi_cls_conn *conn);
135 static struct iscsi_cls_session *
136 qla4xxx_session_create(struct iscsi_endpoint *ep, uint16_t cmds_max,
137 uint16_t qdepth, uint32_t initial_cmdsn);
138 static void qla4xxx_session_destroy(struct iscsi_cls_session *sess);
139 static void qla4xxx_task_work(struct work_struct *wdata);
140 static int qla4xxx_alloc_pdu(struct iscsi_task *, uint8_t);
141 static int qla4xxx_task_xmit(struct iscsi_task *);
142 static void qla4xxx_task_cleanup(struct iscsi_task *);
143 static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session);
144 static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn,
145 struct iscsi_stats *stats);
146 static int qla4xxx_send_ping(struct Scsi_Host *shost, uint32_t iface_num,
147 uint32_t iface_type, uint32_t payload_size,
148 uint32_t pid, struct sockaddr *dst_addr);
149 static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx,
150 uint32_t *num_entries, char *buf);
151 static int qla4xxx_delete_chap(struct Scsi_Host *shost, uint16_t chap_tbl_idx);
152 static int qla4xxx_set_chap_entry(struct Scsi_Host *shost, void *data,
153 int len);
154
155 /*
156 * SCSI host template entry points
157 */
158 static int qla4xxx_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *cmd);
159 static int qla4xxx_eh_abort(struct scsi_cmnd *cmd);
160 static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd);
161 static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd);
162 static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd);
163 static int qla4xxx_slave_alloc(struct scsi_device *device);
164 static int qla4xxx_slave_configure(struct scsi_device *device);
165 static void qla4xxx_slave_destroy(struct scsi_device *sdev);
166 static umode_t qla4_attr_is_visible(int param_type, int param);
167 static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type);
168 static int qla4xxx_change_queue_depth(struct scsi_device *sdev, int qdepth,
169 int reason);
170
171 /*
172 * iSCSI Flash DDB sysfs entry points
173 */
174 static int
175 qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess,
176 struct iscsi_bus_flash_conn *fnode_conn,
177 void *data, int len);
178 static int
179 qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session *fnode_sess,
180 int param, char *buf);
181 static int qla4xxx_sysfs_ddb_add(struct Scsi_Host *shost, const char *buf,
182 int len);
183 static int
184 qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess);
185 static int qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess,
186 struct iscsi_bus_flash_conn *fnode_conn);
187 static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess,
188 struct iscsi_bus_flash_conn *fnode_conn);
189 static int qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess);
190
191 static struct qla4_8xxx_legacy_intr_set legacy_intr[] =
192 QLA82XX_LEGACY_INTR_CONFIG;
193
194 static struct scsi_host_template qla4xxx_driver_template = {
195 .module = THIS_MODULE,
196 .name = DRIVER_NAME,
197 .proc_name = DRIVER_NAME,
198 .queuecommand = qla4xxx_queuecommand,
199
200 .eh_abort_handler = qla4xxx_eh_abort,
201 .eh_device_reset_handler = qla4xxx_eh_device_reset,
202 .eh_target_reset_handler = qla4xxx_eh_target_reset,
203 .eh_host_reset_handler = qla4xxx_eh_host_reset,
204 .eh_timed_out = qla4xxx_eh_cmd_timed_out,
205
206 .slave_configure = qla4xxx_slave_configure,
207 .slave_alloc = qla4xxx_slave_alloc,
208 .slave_destroy = qla4xxx_slave_destroy,
209 .change_queue_depth = qla4xxx_change_queue_depth,
210
211 .this_id = -1,
212 .cmd_per_lun = 3,
213 .use_clustering = ENABLE_CLUSTERING,
214 .sg_tablesize = SG_ALL,
215
216 .max_sectors = 0xFFFF,
217 .shost_attrs = qla4xxx_host_attrs,
218 .host_reset = qla4xxx_host_reset,
219 .vendor_id = SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC,
220 };
221
222 static struct iscsi_transport qla4xxx_iscsi_transport = {
223 .owner = THIS_MODULE,
224 .name = DRIVER_NAME,
225 .caps = CAP_TEXT_NEGO |
226 CAP_DATA_PATH_OFFLOAD | CAP_HDRDGST |
227 CAP_DATADGST | CAP_LOGIN_OFFLOAD |
228 CAP_MULTI_R2T,
229 .attr_is_visible = qla4_attr_is_visible,
230 .create_session = qla4xxx_session_create,
231 .destroy_session = qla4xxx_session_destroy,
232 .start_conn = qla4xxx_conn_start,
233 .create_conn = qla4xxx_conn_create,
234 .bind_conn = qla4xxx_conn_bind,
235 .stop_conn = iscsi_conn_stop,
236 .destroy_conn = qla4xxx_conn_destroy,
237 .set_param = iscsi_set_param,
238 .get_conn_param = qla4xxx_conn_get_param,
239 .get_session_param = qla4xxx_session_get_param,
240 .get_ep_param = qla4xxx_get_ep_param,
241 .ep_connect = qla4xxx_ep_connect,
242 .ep_poll = qla4xxx_ep_poll,
243 .ep_disconnect = qla4xxx_ep_disconnect,
244 .get_stats = qla4xxx_conn_get_stats,
245 .send_pdu = iscsi_conn_send_pdu,
246 .xmit_task = qla4xxx_task_xmit,
247 .cleanup_task = qla4xxx_task_cleanup,
248 .alloc_pdu = qla4xxx_alloc_pdu,
249
250 .get_host_param = qla4xxx_host_get_param,
251 .set_iface_param = qla4xxx_iface_set_param,
252 .get_iface_param = qla4xxx_get_iface_param,
253 .bsg_request = qla4xxx_bsg_request,
254 .send_ping = qla4xxx_send_ping,
255 .get_chap = qla4xxx_get_chap_list,
256 .delete_chap = qla4xxx_delete_chap,
257 .set_chap = qla4xxx_set_chap_entry,
258 .get_flashnode_param = qla4xxx_sysfs_ddb_get_param,
259 .set_flashnode_param = qla4xxx_sysfs_ddb_set_param,
260 .new_flashnode = qla4xxx_sysfs_ddb_add,
261 .del_flashnode = qla4xxx_sysfs_ddb_delete,
262 .login_flashnode = qla4xxx_sysfs_ddb_login,
263 .logout_flashnode = qla4xxx_sysfs_ddb_logout,
264 .logout_flashnode_sid = qla4xxx_sysfs_ddb_logout_sid,
265 };
266
267 static struct scsi_transport_template *qla4xxx_scsi_transport;
268
269 static int qla4xxx_send_ping(struct Scsi_Host *shost, uint32_t iface_num,
270 uint32_t iface_type, uint32_t payload_size,
271 uint32_t pid, struct sockaddr *dst_addr)
272 {
273 struct scsi_qla_host *ha = to_qla_host(shost);
274 struct sockaddr_in *addr;
275 struct sockaddr_in6 *addr6;
276 uint32_t options = 0;
277 uint8_t ipaddr[IPv6_ADDR_LEN];
278 int rval;
279
280 memset(ipaddr, 0, IPv6_ADDR_LEN);
281 /* IPv4 to IPv4 */
282 if ((iface_type == ISCSI_IFACE_TYPE_IPV4) &&
283 (dst_addr->sa_family == AF_INET)) {
284 addr = (struct sockaddr_in *)dst_addr;
285 memcpy(ipaddr, &addr->sin_addr.s_addr, IP_ADDR_LEN);
286 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv4 Ping src: %pI4 "
287 "dest: %pI4\n", __func__,
288 &ha->ip_config.ip_address, ipaddr));
289 rval = qla4xxx_ping_iocb(ha, options, payload_size, pid,
290 ipaddr);
291 if (rval)
292 rval = -EINVAL;
293 } else if ((iface_type == ISCSI_IFACE_TYPE_IPV6) &&
294 (dst_addr->sa_family == AF_INET6)) {
295 /* IPv6 to IPv6 */
296 addr6 = (struct sockaddr_in6 *)dst_addr;
297 memcpy(ipaddr, &addr6->sin6_addr.in6_u.u6_addr8, IPv6_ADDR_LEN);
298
299 options |= PING_IPV6_PROTOCOL_ENABLE;
300
301 /* Ping using LinkLocal address */
302 if ((iface_num == 0) || (iface_num == 1)) {
303 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: LinkLocal Ping "
304 "src: %pI6 dest: %pI6\n", __func__,
305 &ha->ip_config.ipv6_link_local_addr,
306 ipaddr));
307 options |= PING_IPV6_LINKLOCAL_ADDR;
308 rval = qla4xxx_ping_iocb(ha, options, payload_size,
309 pid, ipaddr);
310 } else {
311 ql4_printk(KERN_WARNING, ha, "%s: iface num = %d "
312 "not supported\n", __func__, iface_num);
313 rval = -ENOSYS;
314 goto exit_send_ping;
315 }
316
317 /*
318 * If ping using LinkLocal address fails, try ping using
319 * IPv6 address
320 */
321 if (rval != QLA_SUCCESS) {
322 options &= ~PING_IPV6_LINKLOCAL_ADDR;
323 if (iface_num == 0) {
324 options |= PING_IPV6_ADDR0;
325 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv6 "
326 "Ping src: %pI6 "
327 "dest: %pI6\n", __func__,
328 &ha->ip_config.ipv6_addr0,
329 ipaddr));
330 } else if (iface_num == 1) {
331 options |= PING_IPV6_ADDR1;
332 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv6 "
333 "Ping src: %pI6 "
334 "dest: %pI6\n", __func__,
335 &ha->ip_config.ipv6_addr1,
336 ipaddr));
337 }
338 rval = qla4xxx_ping_iocb(ha, options, payload_size,
339 pid, ipaddr);
340 if (rval)
341 rval = -EINVAL;
342 }
343 } else
344 rval = -ENOSYS;
345 exit_send_ping:
346 return rval;
347 }
348
349 static umode_t qla4_attr_is_visible(int param_type, int param)
350 {
351 switch (param_type) {
352 case ISCSI_HOST_PARAM:
353 switch (param) {
354 case ISCSI_HOST_PARAM_HWADDRESS:
355 case ISCSI_HOST_PARAM_IPADDRESS:
356 case ISCSI_HOST_PARAM_INITIATOR_NAME:
357 case ISCSI_HOST_PARAM_PORT_STATE:
358 case ISCSI_HOST_PARAM_PORT_SPEED:
359 return S_IRUGO;
360 default:
361 return 0;
362 }
363 case ISCSI_PARAM:
364 switch (param) {
365 case ISCSI_PARAM_PERSISTENT_ADDRESS:
366 case ISCSI_PARAM_PERSISTENT_PORT:
367 case ISCSI_PARAM_CONN_ADDRESS:
368 case ISCSI_PARAM_CONN_PORT:
369 case ISCSI_PARAM_TARGET_NAME:
370 case ISCSI_PARAM_TPGT:
371 case ISCSI_PARAM_TARGET_ALIAS:
372 case ISCSI_PARAM_MAX_BURST:
373 case ISCSI_PARAM_MAX_R2T:
374 case ISCSI_PARAM_FIRST_BURST:
375 case ISCSI_PARAM_MAX_RECV_DLENGTH:
376 case ISCSI_PARAM_MAX_XMIT_DLENGTH:
377 case ISCSI_PARAM_IFACE_NAME:
378 case ISCSI_PARAM_CHAP_OUT_IDX:
379 case ISCSI_PARAM_CHAP_IN_IDX:
380 case ISCSI_PARAM_USERNAME:
381 case ISCSI_PARAM_PASSWORD:
382 case ISCSI_PARAM_USERNAME_IN:
383 case ISCSI_PARAM_PASSWORD_IN:
384 case ISCSI_PARAM_AUTO_SND_TGT_DISABLE:
385 case ISCSI_PARAM_DISCOVERY_SESS:
386 case ISCSI_PARAM_PORTAL_TYPE:
387 case ISCSI_PARAM_CHAP_AUTH_EN:
388 case ISCSI_PARAM_DISCOVERY_LOGOUT_EN:
389 case ISCSI_PARAM_BIDI_CHAP_EN:
390 case ISCSI_PARAM_DISCOVERY_AUTH_OPTIONAL:
391 case ISCSI_PARAM_DEF_TIME2WAIT:
392 case ISCSI_PARAM_DEF_TIME2RETAIN:
393 case ISCSI_PARAM_HDRDGST_EN:
394 case ISCSI_PARAM_DATADGST_EN:
395 case ISCSI_PARAM_INITIAL_R2T_EN:
396 case ISCSI_PARAM_IMM_DATA_EN:
397 case ISCSI_PARAM_PDU_INORDER_EN:
398 case ISCSI_PARAM_DATASEQ_INORDER_EN:
399 case ISCSI_PARAM_MAX_SEGMENT_SIZE:
400 case ISCSI_PARAM_TCP_TIMESTAMP_STAT:
401 case ISCSI_PARAM_TCP_WSF_DISABLE:
402 case ISCSI_PARAM_TCP_NAGLE_DISABLE:
403 case ISCSI_PARAM_TCP_TIMER_SCALE:
404 case ISCSI_PARAM_TCP_TIMESTAMP_EN:
405 case ISCSI_PARAM_TCP_XMIT_WSF:
406 case ISCSI_PARAM_TCP_RECV_WSF:
407 case ISCSI_PARAM_IP_FRAGMENT_DISABLE:
408 case ISCSI_PARAM_IPV4_TOS:
409 case ISCSI_PARAM_IPV6_TC:
410 case ISCSI_PARAM_IPV6_FLOW_LABEL:
411 case ISCSI_PARAM_IS_FW_ASSIGNED_IPV6:
412 case ISCSI_PARAM_KEEPALIVE_TMO:
413 case ISCSI_PARAM_LOCAL_PORT:
414 case ISCSI_PARAM_ISID:
415 case ISCSI_PARAM_TSID:
416 case ISCSI_PARAM_DEF_TASKMGMT_TMO:
417 case ISCSI_PARAM_ERL:
418 case ISCSI_PARAM_STATSN:
419 case ISCSI_PARAM_EXP_STATSN:
420 case ISCSI_PARAM_DISCOVERY_PARENT_IDX:
421 case ISCSI_PARAM_DISCOVERY_PARENT_TYPE:
422 return S_IRUGO;
423 default:
424 return 0;
425 }
426 case ISCSI_NET_PARAM:
427 switch (param) {
428 case ISCSI_NET_PARAM_IPV4_ADDR:
429 case ISCSI_NET_PARAM_IPV4_SUBNET:
430 case ISCSI_NET_PARAM_IPV4_GW:
431 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
432 case ISCSI_NET_PARAM_IFACE_ENABLE:
433 case ISCSI_NET_PARAM_IPV6_LINKLOCAL:
434 case ISCSI_NET_PARAM_IPV6_ADDR:
435 case ISCSI_NET_PARAM_IPV6_ROUTER:
436 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG:
437 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG:
438 case ISCSI_NET_PARAM_VLAN_ID:
439 case ISCSI_NET_PARAM_VLAN_PRIORITY:
440 case ISCSI_NET_PARAM_VLAN_ENABLED:
441 case ISCSI_NET_PARAM_MTU:
442 case ISCSI_NET_PARAM_PORT:
443 return S_IRUGO;
444 default:
445 return 0;
446 }
447 case ISCSI_FLASHNODE_PARAM:
448 switch (param) {
449 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6:
450 case ISCSI_FLASHNODE_PORTAL_TYPE:
451 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE:
452 case ISCSI_FLASHNODE_DISCOVERY_SESS:
453 case ISCSI_FLASHNODE_ENTRY_EN:
454 case ISCSI_FLASHNODE_HDR_DGST_EN:
455 case ISCSI_FLASHNODE_DATA_DGST_EN:
456 case ISCSI_FLASHNODE_IMM_DATA_EN:
457 case ISCSI_FLASHNODE_INITIAL_R2T_EN:
458 case ISCSI_FLASHNODE_DATASEQ_INORDER:
459 case ISCSI_FLASHNODE_PDU_INORDER:
460 case ISCSI_FLASHNODE_CHAP_AUTH_EN:
461 case ISCSI_FLASHNODE_SNACK_REQ_EN:
462 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN:
463 case ISCSI_FLASHNODE_BIDI_CHAP_EN:
464 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL:
465 case ISCSI_FLASHNODE_ERL:
466 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT:
467 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE:
468 case ISCSI_FLASHNODE_TCP_WSF_DISABLE:
469 case ISCSI_FLASHNODE_TCP_TIMER_SCALE:
470 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN:
471 case ISCSI_FLASHNODE_IP_FRAG_DISABLE:
472 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH:
473 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH:
474 case ISCSI_FLASHNODE_FIRST_BURST:
475 case ISCSI_FLASHNODE_DEF_TIME2WAIT:
476 case ISCSI_FLASHNODE_DEF_TIME2RETAIN:
477 case ISCSI_FLASHNODE_MAX_R2T:
478 case ISCSI_FLASHNODE_KEEPALIVE_TMO:
479 case ISCSI_FLASHNODE_ISID:
480 case ISCSI_FLASHNODE_TSID:
481 case ISCSI_FLASHNODE_PORT:
482 case ISCSI_FLASHNODE_MAX_BURST:
483 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO:
484 case ISCSI_FLASHNODE_IPADDR:
485 case ISCSI_FLASHNODE_ALIAS:
486 case ISCSI_FLASHNODE_REDIRECT_IPADDR:
487 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE:
488 case ISCSI_FLASHNODE_LOCAL_PORT:
489 case ISCSI_FLASHNODE_IPV4_TOS:
490 case ISCSI_FLASHNODE_IPV6_TC:
491 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL:
492 case ISCSI_FLASHNODE_NAME:
493 case ISCSI_FLASHNODE_TPGT:
494 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6:
495 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX:
496 case ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE:
497 case ISCSI_FLASHNODE_TCP_XMIT_WSF:
498 case ISCSI_FLASHNODE_TCP_RECV_WSF:
499 case ISCSI_FLASHNODE_CHAP_OUT_IDX:
500 case ISCSI_FLASHNODE_USERNAME:
501 case ISCSI_FLASHNODE_PASSWORD:
502 case ISCSI_FLASHNODE_STATSN:
503 case ISCSI_FLASHNODE_EXP_STATSN:
504 case ISCSI_FLASHNODE_IS_BOOT_TGT:
505 return S_IRUGO;
506 default:
507 return 0;
508 }
509 }
510
511 return 0;
512 }
513
514 static int qla4xxx_get_chap_by_index(struct scsi_qla_host *ha,
515 int16_t chap_index,
516 struct ql4_chap_table **chap_entry)
517 {
518 int rval = QLA_ERROR;
519 int max_chap_entries;
520
521 if (!ha->chap_list) {
522 ql4_printk(KERN_ERR, ha, "CHAP table cache is empty!\n");
523 rval = QLA_ERROR;
524 goto exit_get_chap;
525 }
526
527 if (is_qla80XX(ha))
528 max_chap_entries = (ha->hw.flt_chap_size / 2) /
529 sizeof(struct ql4_chap_table);
530 else
531 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
532
533 if (chap_index > max_chap_entries) {
534 ql4_printk(KERN_ERR, ha, "Invalid Chap index\n");
535 rval = QLA_ERROR;
536 goto exit_get_chap;
537 }
538
539 *chap_entry = (struct ql4_chap_table *)ha->chap_list + chap_index;
540 if ((*chap_entry)->cookie !=
541 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) {
542 rval = QLA_ERROR;
543 *chap_entry = NULL;
544 } else {
545 rval = QLA_SUCCESS;
546 }
547
548 exit_get_chap:
549 return rval;
550 }
551
552 /**
553 * qla4xxx_find_free_chap_index - Find the first free chap index
554 * @ha: pointer to adapter structure
555 * @chap_index: CHAP index to be returned
556 *
557 * Find the first free chap index available in the chap table
558 *
559 * Note: Caller should acquire the chap lock before getting here.
560 **/
561 static int qla4xxx_find_free_chap_index(struct scsi_qla_host *ha,
562 uint16_t *chap_index)
563 {
564 int i, rval;
565 int free_index = -1;
566 int max_chap_entries = 0;
567 struct ql4_chap_table *chap_table;
568
569 if (is_qla80XX(ha))
570 max_chap_entries = (ha->hw.flt_chap_size / 2) /
571 sizeof(struct ql4_chap_table);
572 else
573 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
574
575 if (!ha->chap_list) {
576 ql4_printk(KERN_ERR, ha, "CHAP table cache is empty!\n");
577 rval = QLA_ERROR;
578 goto exit_find_chap;
579 }
580
581 for (i = 0; i < max_chap_entries; i++) {
582 chap_table = (struct ql4_chap_table *)ha->chap_list + i;
583
584 if ((chap_table->cookie !=
585 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) &&
586 (i > MAX_RESRV_CHAP_IDX)) {
587 free_index = i;
588 break;
589 }
590 }
591
592 if (free_index != -1) {
593 *chap_index = free_index;
594 rval = QLA_SUCCESS;
595 } else {
596 rval = QLA_ERROR;
597 }
598
599 exit_find_chap:
600 return rval;
601 }
602
603 static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx,
604 uint32_t *num_entries, char *buf)
605 {
606 struct scsi_qla_host *ha = to_qla_host(shost);
607 struct ql4_chap_table *chap_table;
608 struct iscsi_chap_rec *chap_rec;
609 int max_chap_entries = 0;
610 int valid_chap_entries = 0;
611 int ret = 0, i;
612
613 if (is_qla80XX(ha))
614 max_chap_entries = (ha->hw.flt_chap_size / 2) /
615 sizeof(struct ql4_chap_table);
616 else
617 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
618
619 ql4_printk(KERN_INFO, ha, "%s: num_entries = %d, CHAP idx = %d\n",
620 __func__, *num_entries, chap_tbl_idx);
621
622 if (!buf) {
623 ret = -ENOMEM;
624 goto exit_get_chap_list;
625 }
626
627 chap_rec = (struct iscsi_chap_rec *) buf;
628 mutex_lock(&ha->chap_sem);
629 for (i = chap_tbl_idx; i < max_chap_entries; i++) {
630 chap_table = (struct ql4_chap_table *)ha->chap_list + i;
631 if (chap_table->cookie !=
632 __constant_cpu_to_le16(CHAP_VALID_COOKIE))
633 continue;
634
635 chap_rec->chap_tbl_idx = i;
636 strncpy(chap_rec->username, chap_table->name,
637 ISCSI_CHAP_AUTH_NAME_MAX_LEN);
638 strncpy(chap_rec->password, chap_table->secret,
639 QL4_CHAP_MAX_SECRET_LEN);
640 chap_rec->password_length = chap_table->secret_len;
641
642 if (chap_table->flags & BIT_7) /* local */
643 chap_rec->chap_type = CHAP_TYPE_OUT;
644
645 if (chap_table->flags & BIT_6) /* peer */
646 chap_rec->chap_type = CHAP_TYPE_IN;
647
648 chap_rec++;
649
650 valid_chap_entries++;
651 if (valid_chap_entries == *num_entries)
652 break;
653 else
654 continue;
655 }
656 mutex_unlock(&ha->chap_sem);
657
658 exit_get_chap_list:
659 ql4_printk(KERN_INFO, ha, "%s: Valid CHAP Entries = %d\n",
660 __func__, valid_chap_entries);
661 *num_entries = valid_chap_entries;
662 return ret;
663 }
664
665 static int __qla4xxx_is_chap_active(struct device *dev, void *data)
666 {
667 int ret = 0;
668 uint16_t *chap_tbl_idx = (uint16_t *) data;
669 struct iscsi_cls_session *cls_session;
670 struct iscsi_session *sess;
671 struct ddb_entry *ddb_entry;
672
673 if (!iscsi_is_session_dev(dev))
674 goto exit_is_chap_active;
675
676 cls_session = iscsi_dev_to_session(dev);
677 sess = cls_session->dd_data;
678 ddb_entry = sess->dd_data;
679
680 if (iscsi_session_chkready(cls_session))
681 goto exit_is_chap_active;
682
683 if (ddb_entry->chap_tbl_idx == *chap_tbl_idx)
684 ret = 1;
685
686 exit_is_chap_active:
687 return ret;
688 }
689
690 static int qla4xxx_is_chap_active(struct Scsi_Host *shost,
691 uint16_t chap_tbl_idx)
692 {
693 int ret = 0;
694
695 ret = device_for_each_child(&shost->shost_gendev, &chap_tbl_idx,
696 __qla4xxx_is_chap_active);
697
698 return ret;
699 }
700
701 static int qla4xxx_delete_chap(struct Scsi_Host *shost, uint16_t chap_tbl_idx)
702 {
703 struct scsi_qla_host *ha = to_qla_host(shost);
704 struct ql4_chap_table *chap_table;
705 dma_addr_t chap_dma;
706 int max_chap_entries = 0;
707 uint32_t offset = 0;
708 uint32_t chap_size;
709 int ret = 0;
710
711 chap_table = dma_pool_alloc(ha->chap_dma_pool, GFP_KERNEL, &chap_dma);
712 if (chap_table == NULL)
713 return -ENOMEM;
714
715 memset(chap_table, 0, sizeof(struct ql4_chap_table));
716
717 if (is_qla80XX(ha))
718 max_chap_entries = (ha->hw.flt_chap_size / 2) /
719 sizeof(struct ql4_chap_table);
720 else
721 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
722
723 if (chap_tbl_idx > max_chap_entries) {
724 ret = -EINVAL;
725 goto exit_delete_chap;
726 }
727
728 /* Check if chap index is in use.
729 * If chap is in use don't delet chap entry */
730 ret = qla4xxx_is_chap_active(shost, chap_tbl_idx);
731 if (ret) {
732 ql4_printk(KERN_INFO, ha, "CHAP entry %d is in use, cannot "
733 "delete from flash\n", chap_tbl_idx);
734 ret = -EBUSY;
735 goto exit_delete_chap;
736 }
737
738 chap_size = sizeof(struct ql4_chap_table);
739 if (is_qla40XX(ha))
740 offset = FLASH_CHAP_OFFSET | (chap_tbl_idx * chap_size);
741 else {
742 offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2);
743 /* flt_chap_size is CHAP table size for both ports
744 * so divide it by 2 to calculate the offset for second port
745 */
746 if (ha->port_num == 1)
747 offset += (ha->hw.flt_chap_size / 2);
748 offset += (chap_tbl_idx * chap_size);
749 }
750
751 ret = qla4xxx_get_flash(ha, chap_dma, offset, chap_size);
752 if (ret != QLA_SUCCESS) {
753 ret = -EINVAL;
754 goto exit_delete_chap;
755 }
756
757 DEBUG2(ql4_printk(KERN_INFO, ha, "Chap Cookie: x%x\n",
758 __le16_to_cpu(chap_table->cookie)));
759
760 if (__le16_to_cpu(chap_table->cookie) != CHAP_VALID_COOKIE) {
761 ql4_printk(KERN_ERR, ha, "No valid chap entry found\n");
762 goto exit_delete_chap;
763 }
764
765 chap_table->cookie = __constant_cpu_to_le16(0xFFFF);
766
767 offset = FLASH_CHAP_OFFSET |
768 (chap_tbl_idx * sizeof(struct ql4_chap_table));
769 ret = qla4xxx_set_flash(ha, chap_dma, offset, chap_size,
770 FLASH_OPT_RMW_COMMIT);
771 if (ret == QLA_SUCCESS && ha->chap_list) {
772 mutex_lock(&ha->chap_sem);
773 /* Update ha chap_list cache */
774 memcpy((struct ql4_chap_table *)ha->chap_list + chap_tbl_idx,
775 chap_table, sizeof(struct ql4_chap_table));
776 mutex_unlock(&ha->chap_sem);
777 }
778 if (ret != QLA_SUCCESS)
779 ret = -EINVAL;
780
781 exit_delete_chap:
782 dma_pool_free(ha->chap_dma_pool, chap_table, chap_dma);
783 return ret;
784 }
785
786 /**
787 * qla4xxx_set_chap_entry - Make chap entry with given information
788 * @shost: pointer to host
789 * @data: chap info - credentials, index and type to make chap entry
790 * @len: length of data
791 *
792 * Add or update chap entry with the given information
793 **/
794 static int qla4xxx_set_chap_entry(struct Scsi_Host *shost, void *data, int len)
795 {
796 struct scsi_qla_host *ha = to_qla_host(shost);
797 struct iscsi_chap_rec chap_rec;
798 struct ql4_chap_table *chap_entry = NULL;
799 struct iscsi_param_info *param_info;
800 struct nlattr *attr;
801 int max_chap_entries = 0;
802 int type;
803 int rem = len;
804 int rc = 0;
805
806 memset(&chap_rec, 0, sizeof(chap_rec));
807
808 nla_for_each_attr(attr, data, len, rem) {
809 param_info = nla_data(attr);
810
811 switch (param_info->param) {
812 case ISCSI_CHAP_PARAM_INDEX:
813 chap_rec.chap_tbl_idx = *(uint16_t *)param_info->value;
814 break;
815 case ISCSI_CHAP_PARAM_CHAP_TYPE:
816 chap_rec.chap_type = param_info->value[0];
817 break;
818 case ISCSI_CHAP_PARAM_USERNAME:
819 memcpy(chap_rec.username, param_info->value,
820 param_info->len);
821 break;
822 case ISCSI_CHAP_PARAM_PASSWORD:
823 memcpy(chap_rec.password, param_info->value,
824 param_info->len);
825 break;
826 case ISCSI_CHAP_PARAM_PASSWORD_LEN:
827 chap_rec.password_length = param_info->value[0];
828 break;
829 default:
830 ql4_printk(KERN_ERR, ha,
831 "%s: No such sysfs attribute\n", __func__);
832 rc = -ENOSYS;
833 goto exit_set_chap;
834 };
835 }
836
837 if (chap_rec.chap_type == CHAP_TYPE_IN)
838 type = BIDI_CHAP;
839 else
840 type = LOCAL_CHAP;
841
842 if (is_qla80XX(ha))
843 max_chap_entries = (ha->hw.flt_chap_size / 2) /
844 sizeof(struct ql4_chap_table);
845 else
846 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
847
848 mutex_lock(&ha->chap_sem);
849 if (chap_rec.chap_tbl_idx < max_chap_entries) {
850 rc = qla4xxx_get_chap_by_index(ha, chap_rec.chap_tbl_idx,
851 &chap_entry);
852 if (!rc) {
853 if (!(type == qla4xxx_get_chap_type(chap_entry))) {
854 ql4_printk(KERN_INFO, ha,
855 "Type mismatch for CHAP entry %d\n",
856 chap_rec.chap_tbl_idx);
857 rc = -EINVAL;
858 goto exit_unlock_chap;
859 }
860
861 /* If chap index is in use then don't modify it */
862 rc = qla4xxx_is_chap_active(shost,
863 chap_rec.chap_tbl_idx);
864 if (rc) {
865 ql4_printk(KERN_INFO, ha,
866 "CHAP entry %d is in use\n",
867 chap_rec.chap_tbl_idx);
868 rc = -EBUSY;
869 goto exit_unlock_chap;
870 }
871 }
872 } else {
873 rc = qla4xxx_find_free_chap_index(ha, &chap_rec.chap_tbl_idx);
874 if (rc) {
875 ql4_printk(KERN_INFO, ha, "CHAP entry not available\n");
876 rc = -EBUSY;
877 goto exit_unlock_chap;
878 }
879 }
880
881 rc = qla4xxx_set_chap(ha, chap_rec.username, chap_rec.password,
882 chap_rec.chap_tbl_idx, type);
883
884 exit_unlock_chap:
885 mutex_unlock(&ha->chap_sem);
886
887 exit_set_chap:
888 return rc;
889 }
890
891 static int qla4xxx_get_iface_param(struct iscsi_iface *iface,
892 enum iscsi_param_type param_type,
893 int param, char *buf)
894 {
895 struct Scsi_Host *shost = iscsi_iface_to_shost(iface);
896 struct scsi_qla_host *ha = to_qla_host(shost);
897 int len = -ENOSYS;
898
899 if (param_type != ISCSI_NET_PARAM)
900 return -ENOSYS;
901
902 switch (param) {
903 case ISCSI_NET_PARAM_IPV4_ADDR:
904 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address);
905 break;
906 case ISCSI_NET_PARAM_IPV4_SUBNET:
907 len = sprintf(buf, "%pI4\n", &ha->ip_config.subnet_mask);
908 break;
909 case ISCSI_NET_PARAM_IPV4_GW:
910 len = sprintf(buf, "%pI4\n", &ha->ip_config.gateway);
911 break;
912 case ISCSI_NET_PARAM_IFACE_ENABLE:
913 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
914 len = sprintf(buf, "%s\n",
915 (ha->ip_config.ipv4_options &
916 IPOPT_IPV4_PROTOCOL_ENABLE) ?
917 "enabled" : "disabled");
918 else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6)
919 len = sprintf(buf, "%s\n",
920 (ha->ip_config.ipv6_options &
921 IPV6_OPT_IPV6_PROTOCOL_ENABLE) ?
922 "enabled" : "disabled");
923 break;
924 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
925 len = sprintf(buf, "%s\n",
926 (ha->ip_config.tcp_options & TCPOPT_DHCP_ENABLE) ?
927 "dhcp" : "static");
928 break;
929 case ISCSI_NET_PARAM_IPV6_ADDR:
930 if (iface->iface_num == 0)
931 len = sprintf(buf, "%pI6\n", &ha->ip_config.ipv6_addr0);
932 if (iface->iface_num == 1)
933 len = sprintf(buf, "%pI6\n", &ha->ip_config.ipv6_addr1);
934 break;
935 case ISCSI_NET_PARAM_IPV6_LINKLOCAL:
936 len = sprintf(buf, "%pI6\n",
937 &ha->ip_config.ipv6_link_local_addr);
938 break;
939 case ISCSI_NET_PARAM_IPV6_ROUTER:
940 len = sprintf(buf, "%pI6\n",
941 &ha->ip_config.ipv6_default_router_addr);
942 break;
943 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG:
944 len = sprintf(buf, "%s\n",
945 (ha->ip_config.ipv6_addl_options &
946 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE) ?
947 "nd" : "static");
948 break;
949 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG:
950 len = sprintf(buf, "%s\n",
951 (ha->ip_config.ipv6_addl_options &
952 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR) ?
953 "auto" : "static");
954 break;
955 case ISCSI_NET_PARAM_VLAN_ID:
956 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
957 len = sprintf(buf, "%d\n",
958 (ha->ip_config.ipv4_vlan_tag &
959 ISCSI_MAX_VLAN_ID));
960 else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6)
961 len = sprintf(buf, "%d\n",
962 (ha->ip_config.ipv6_vlan_tag &
963 ISCSI_MAX_VLAN_ID));
964 break;
965 case ISCSI_NET_PARAM_VLAN_PRIORITY:
966 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
967 len = sprintf(buf, "%d\n",
968 ((ha->ip_config.ipv4_vlan_tag >> 13) &
969 ISCSI_MAX_VLAN_PRIORITY));
970 else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6)
971 len = sprintf(buf, "%d\n",
972 ((ha->ip_config.ipv6_vlan_tag >> 13) &
973 ISCSI_MAX_VLAN_PRIORITY));
974 break;
975 case ISCSI_NET_PARAM_VLAN_ENABLED:
976 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
977 len = sprintf(buf, "%s\n",
978 (ha->ip_config.ipv4_options &
979 IPOPT_VLAN_TAGGING_ENABLE) ?
980 "enabled" : "disabled");
981 else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6)
982 len = sprintf(buf, "%s\n",
983 (ha->ip_config.ipv6_options &
984 IPV6_OPT_VLAN_TAGGING_ENABLE) ?
985 "enabled" : "disabled");
986 break;
987 case ISCSI_NET_PARAM_MTU:
988 len = sprintf(buf, "%d\n", ha->ip_config.eth_mtu_size);
989 break;
990 case ISCSI_NET_PARAM_PORT:
991 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
992 len = sprintf(buf, "%d\n", ha->ip_config.ipv4_port);
993 else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6)
994 len = sprintf(buf, "%d\n", ha->ip_config.ipv6_port);
995 break;
996 default:
997 len = -ENOSYS;
998 }
999
1000 return len;
1001 }
1002
1003 static struct iscsi_endpoint *
1004 qla4xxx_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr,
1005 int non_blocking)
1006 {
1007 int ret;
1008 struct iscsi_endpoint *ep;
1009 struct qla_endpoint *qla_ep;
1010 struct scsi_qla_host *ha;
1011 struct sockaddr_in *addr;
1012 struct sockaddr_in6 *addr6;
1013
1014 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
1015 if (!shost) {
1016 ret = -ENXIO;
1017 printk(KERN_ERR "%s: shost is NULL\n",
1018 __func__);
1019 return ERR_PTR(ret);
1020 }
1021
1022 ha = iscsi_host_priv(shost);
1023
1024 ep = iscsi_create_endpoint(sizeof(struct qla_endpoint));
1025 if (!ep) {
1026 ret = -ENOMEM;
1027 return ERR_PTR(ret);
1028 }
1029
1030 qla_ep = ep->dd_data;
1031 memset(qla_ep, 0, sizeof(struct qla_endpoint));
1032 if (dst_addr->sa_family == AF_INET) {
1033 memcpy(&qla_ep->dst_addr, dst_addr, sizeof(struct sockaddr_in));
1034 addr = (struct sockaddr_in *)&qla_ep->dst_addr;
1035 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI4\n", __func__,
1036 (char *)&addr->sin_addr));
1037 } else if (dst_addr->sa_family == AF_INET6) {
1038 memcpy(&qla_ep->dst_addr, dst_addr,
1039 sizeof(struct sockaddr_in6));
1040 addr6 = (struct sockaddr_in6 *)&qla_ep->dst_addr;
1041 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI6\n", __func__,
1042 (char *)&addr6->sin6_addr));
1043 }
1044
1045 qla_ep->host = shost;
1046
1047 return ep;
1048 }
1049
1050 static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms)
1051 {
1052 struct qla_endpoint *qla_ep;
1053 struct scsi_qla_host *ha;
1054 int ret = 0;
1055
1056 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
1057 qla_ep = ep->dd_data;
1058 ha = to_qla_host(qla_ep->host);
1059
1060 if (adapter_up(ha) && !test_bit(AF_BUILD_DDB_LIST, &ha->flags))
1061 ret = 1;
1062
1063 return ret;
1064 }
1065
1066 static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep)
1067 {
1068 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
1069 iscsi_destroy_endpoint(ep);
1070 }
1071
1072 static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep,
1073 enum iscsi_param param,
1074 char *buf)
1075 {
1076 struct qla_endpoint *qla_ep = ep->dd_data;
1077 struct sockaddr *dst_addr;
1078
1079 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
1080
1081 switch (param) {
1082 case ISCSI_PARAM_CONN_PORT:
1083 case ISCSI_PARAM_CONN_ADDRESS:
1084 if (!qla_ep)
1085 return -ENOTCONN;
1086
1087 dst_addr = (struct sockaddr *)&qla_ep->dst_addr;
1088 if (!dst_addr)
1089 return -ENOTCONN;
1090
1091 return iscsi_conn_get_addr_param((struct sockaddr_storage *)
1092 &qla_ep->dst_addr, param, buf);
1093 default:
1094 return -ENOSYS;
1095 }
1096 }
1097
1098 static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn,
1099 struct iscsi_stats *stats)
1100 {
1101 struct iscsi_session *sess;
1102 struct iscsi_cls_session *cls_sess;
1103 struct ddb_entry *ddb_entry;
1104 struct scsi_qla_host *ha;
1105 struct ql_iscsi_stats *ql_iscsi_stats;
1106 int stats_size;
1107 int ret;
1108 dma_addr_t iscsi_stats_dma;
1109
1110 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
1111
1112 cls_sess = iscsi_conn_to_session(cls_conn);
1113 sess = cls_sess->dd_data;
1114 ddb_entry = sess->dd_data;
1115 ha = ddb_entry->ha;
1116
1117 stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats));
1118 /* Allocate memory */
1119 ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size,
1120 &iscsi_stats_dma, GFP_KERNEL);
1121 if (!ql_iscsi_stats) {
1122 ql4_printk(KERN_ERR, ha,
1123 "Unable to allocate memory for iscsi stats\n");
1124 goto exit_get_stats;
1125 }
1126
1127 ret = qla4xxx_get_mgmt_data(ha, ddb_entry->fw_ddb_index, stats_size,
1128 iscsi_stats_dma);
1129 if (ret != QLA_SUCCESS) {
1130 ql4_printk(KERN_ERR, ha,
1131 "Unable to retrieve iscsi stats\n");
1132 goto free_stats;
1133 }
1134
1135 /* octets */
1136 stats->txdata_octets = le64_to_cpu(ql_iscsi_stats->tx_data_octets);
1137 stats->rxdata_octets = le64_to_cpu(ql_iscsi_stats->rx_data_octets);
1138 /* xmit pdus */
1139 stats->noptx_pdus = le32_to_cpu(ql_iscsi_stats->tx_nopout_pdus);
1140 stats->scsicmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_cmd_pdus);
1141 stats->tmfcmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_tmf_cmd_pdus);
1142 stats->login_pdus = le32_to_cpu(ql_iscsi_stats->tx_login_cmd_pdus);
1143 stats->text_pdus = le32_to_cpu(ql_iscsi_stats->tx_text_cmd_pdus);
1144 stats->dataout_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_write_pdus);
1145 stats->logout_pdus = le32_to_cpu(ql_iscsi_stats->tx_logout_cmd_pdus);
1146 stats->snack_pdus = le32_to_cpu(ql_iscsi_stats->tx_snack_req_pdus);
1147 /* recv pdus */
1148 stats->noprx_pdus = le32_to_cpu(ql_iscsi_stats->rx_nopin_pdus);
1149 stats->scsirsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_resp_pdus);
1150 stats->tmfrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_tmf_resp_pdus);
1151 stats->textrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_text_resp_pdus);
1152 stats->datain_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_read_pdus);
1153 stats->logoutrsp_pdus =
1154 le32_to_cpu(ql_iscsi_stats->rx_logout_resp_pdus);
1155 stats->r2t_pdus = le32_to_cpu(ql_iscsi_stats->rx_r2t_pdus);
1156 stats->async_pdus = le32_to_cpu(ql_iscsi_stats->rx_async_pdus);
1157 stats->rjt_pdus = le32_to_cpu(ql_iscsi_stats->rx_reject_pdus);
1158
1159 free_stats:
1160 dma_free_coherent(&ha->pdev->dev, stats_size, ql_iscsi_stats,
1161 iscsi_stats_dma);
1162 exit_get_stats:
1163 return;
1164 }
1165
1166 static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc)
1167 {
1168 struct iscsi_cls_session *session;
1169 struct iscsi_session *sess;
1170 unsigned long flags;
1171 enum blk_eh_timer_return ret = BLK_EH_NOT_HANDLED;
1172
1173 session = starget_to_session(scsi_target(sc->device));
1174 sess = session->dd_data;
1175
1176 spin_lock_irqsave(&session->lock, flags);
1177 if (session->state == ISCSI_SESSION_FAILED)
1178 ret = BLK_EH_RESET_TIMER;
1179 spin_unlock_irqrestore(&session->lock, flags);
1180
1181 return ret;
1182 }
1183
1184 static void qla4xxx_set_port_speed(struct Scsi_Host *shost)
1185 {
1186 struct scsi_qla_host *ha = to_qla_host(shost);
1187 struct iscsi_cls_host *ihost = shost->shost_data;
1188 uint32_t speed = ISCSI_PORT_SPEED_UNKNOWN;
1189
1190 qla4xxx_get_firmware_state(ha);
1191
1192 switch (ha->addl_fw_state & 0x0F00) {
1193 case FW_ADDSTATE_LINK_SPEED_10MBPS:
1194 speed = ISCSI_PORT_SPEED_10MBPS;
1195 break;
1196 case FW_ADDSTATE_LINK_SPEED_100MBPS:
1197 speed = ISCSI_PORT_SPEED_100MBPS;
1198 break;
1199 case FW_ADDSTATE_LINK_SPEED_1GBPS:
1200 speed = ISCSI_PORT_SPEED_1GBPS;
1201 break;
1202 case FW_ADDSTATE_LINK_SPEED_10GBPS:
1203 speed = ISCSI_PORT_SPEED_10GBPS;
1204 break;
1205 }
1206 ihost->port_speed = speed;
1207 }
1208
1209 static void qla4xxx_set_port_state(struct Scsi_Host *shost)
1210 {
1211 struct scsi_qla_host *ha = to_qla_host(shost);
1212 struct iscsi_cls_host *ihost = shost->shost_data;
1213 uint32_t state = ISCSI_PORT_STATE_DOWN;
1214
1215 if (test_bit(AF_LINK_UP, &ha->flags))
1216 state = ISCSI_PORT_STATE_UP;
1217
1218 ihost->port_state = state;
1219 }
1220
1221 static int qla4xxx_host_get_param(struct Scsi_Host *shost,
1222 enum iscsi_host_param param, char *buf)
1223 {
1224 struct scsi_qla_host *ha = to_qla_host(shost);
1225 int len;
1226
1227 switch (param) {
1228 case ISCSI_HOST_PARAM_HWADDRESS:
1229 len = sysfs_format_mac(buf, ha->my_mac, MAC_ADDR_LEN);
1230 break;
1231 case ISCSI_HOST_PARAM_IPADDRESS:
1232 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address);
1233 break;
1234 case ISCSI_HOST_PARAM_INITIATOR_NAME:
1235 len = sprintf(buf, "%s\n", ha->name_string);
1236 break;
1237 case ISCSI_HOST_PARAM_PORT_STATE:
1238 qla4xxx_set_port_state(shost);
1239 len = sprintf(buf, "%s\n", iscsi_get_port_state_name(shost));
1240 break;
1241 case ISCSI_HOST_PARAM_PORT_SPEED:
1242 qla4xxx_set_port_speed(shost);
1243 len = sprintf(buf, "%s\n", iscsi_get_port_speed_name(shost));
1244 break;
1245 default:
1246 return -ENOSYS;
1247 }
1248
1249 return len;
1250 }
1251
1252 static void qla4xxx_create_ipv4_iface(struct scsi_qla_host *ha)
1253 {
1254 if (ha->iface_ipv4)
1255 return;
1256
1257 /* IPv4 */
1258 ha->iface_ipv4 = iscsi_create_iface(ha->host,
1259 &qla4xxx_iscsi_transport,
1260 ISCSI_IFACE_TYPE_IPV4, 0, 0);
1261 if (!ha->iface_ipv4)
1262 ql4_printk(KERN_ERR, ha, "Could not create IPv4 iSCSI "
1263 "iface0.\n");
1264 }
1265
1266 static void qla4xxx_create_ipv6_iface(struct scsi_qla_host *ha)
1267 {
1268 if (!ha->iface_ipv6_0)
1269 /* IPv6 iface-0 */
1270 ha->iface_ipv6_0 = iscsi_create_iface(ha->host,
1271 &qla4xxx_iscsi_transport,
1272 ISCSI_IFACE_TYPE_IPV6, 0,
1273 0);
1274 if (!ha->iface_ipv6_0)
1275 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI "
1276 "iface0.\n");
1277
1278 if (!ha->iface_ipv6_1)
1279 /* IPv6 iface-1 */
1280 ha->iface_ipv6_1 = iscsi_create_iface(ha->host,
1281 &qla4xxx_iscsi_transport,
1282 ISCSI_IFACE_TYPE_IPV6, 1,
1283 0);
1284 if (!ha->iface_ipv6_1)
1285 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI "
1286 "iface1.\n");
1287 }
1288
1289 static void qla4xxx_create_ifaces(struct scsi_qla_host *ha)
1290 {
1291 if (ha->ip_config.ipv4_options & IPOPT_IPV4_PROTOCOL_ENABLE)
1292 qla4xxx_create_ipv4_iface(ha);
1293
1294 if (ha->ip_config.ipv6_options & IPV6_OPT_IPV6_PROTOCOL_ENABLE)
1295 qla4xxx_create_ipv6_iface(ha);
1296 }
1297
1298 static void qla4xxx_destroy_ipv4_iface(struct scsi_qla_host *ha)
1299 {
1300 if (ha->iface_ipv4) {
1301 iscsi_destroy_iface(ha->iface_ipv4);
1302 ha->iface_ipv4 = NULL;
1303 }
1304 }
1305
1306 static void qla4xxx_destroy_ipv6_iface(struct scsi_qla_host *ha)
1307 {
1308 if (ha->iface_ipv6_0) {
1309 iscsi_destroy_iface(ha->iface_ipv6_0);
1310 ha->iface_ipv6_0 = NULL;
1311 }
1312 if (ha->iface_ipv6_1) {
1313 iscsi_destroy_iface(ha->iface_ipv6_1);
1314 ha->iface_ipv6_1 = NULL;
1315 }
1316 }
1317
1318 static void qla4xxx_destroy_ifaces(struct scsi_qla_host *ha)
1319 {
1320 qla4xxx_destroy_ipv4_iface(ha);
1321 qla4xxx_destroy_ipv6_iface(ha);
1322 }
1323
1324 static void qla4xxx_set_ipv6(struct scsi_qla_host *ha,
1325 struct iscsi_iface_param_info *iface_param,
1326 struct addr_ctrl_blk *init_fw_cb)
1327 {
1328 /*
1329 * iface_num 0 is valid for IPv6 Addr, linklocal, router, autocfg.
1330 * iface_num 1 is valid only for IPv6 Addr.
1331 */
1332 switch (iface_param->param) {
1333 case ISCSI_NET_PARAM_IPV6_ADDR:
1334 if (iface_param->iface_num & 0x1)
1335 /* IPv6 Addr 1 */
1336 memcpy(init_fw_cb->ipv6_addr1, iface_param->value,
1337 sizeof(init_fw_cb->ipv6_addr1));
1338 else
1339 /* IPv6 Addr 0 */
1340 memcpy(init_fw_cb->ipv6_addr0, iface_param->value,
1341 sizeof(init_fw_cb->ipv6_addr0));
1342 break;
1343 case ISCSI_NET_PARAM_IPV6_LINKLOCAL:
1344 if (iface_param->iface_num & 0x1)
1345 break;
1346 memcpy(init_fw_cb->ipv6_if_id, &iface_param->value[8],
1347 sizeof(init_fw_cb->ipv6_if_id));
1348 break;
1349 case ISCSI_NET_PARAM_IPV6_ROUTER:
1350 if (iface_param->iface_num & 0x1)
1351 break;
1352 memcpy(init_fw_cb->ipv6_dflt_rtr_addr, iface_param->value,
1353 sizeof(init_fw_cb->ipv6_dflt_rtr_addr));
1354 break;
1355 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG:
1356 /* Autocfg applies to even interface */
1357 if (iface_param->iface_num & 0x1)
1358 break;
1359
1360 if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_DISABLE)
1361 init_fw_cb->ipv6_addtl_opts &=
1362 cpu_to_le16(
1363 ~IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE);
1364 else if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_ND_ENABLE)
1365 init_fw_cb->ipv6_addtl_opts |=
1366 cpu_to_le16(
1367 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE);
1368 else
1369 ql4_printk(KERN_ERR, ha, "Invalid autocfg setting for "
1370 "IPv6 addr\n");
1371 break;
1372 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG:
1373 /* Autocfg applies to even interface */
1374 if (iface_param->iface_num & 0x1)
1375 break;
1376
1377 if (iface_param->value[0] ==
1378 ISCSI_IPV6_LINKLOCAL_AUTOCFG_ENABLE)
1379 init_fw_cb->ipv6_addtl_opts |= cpu_to_le16(
1380 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR);
1381 else if (iface_param->value[0] ==
1382 ISCSI_IPV6_LINKLOCAL_AUTOCFG_DISABLE)
1383 init_fw_cb->ipv6_addtl_opts &= cpu_to_le16(
1384 ~IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR);
1385 else
1386 ql4_printk(KERN_ERR, ha, "Invalid autocfg setting for "
1387 "IPv6 linklocal addr\n");
1388 break;
1389 case ISCSI_NET_PARAM_IPV6_ROUTER_AUTOCFG:
1390 /* Autocfg applies to even interface */
1391 if (iface_param->iface_num & 0x1)
1392 break;
1393
1394 if (iface_param->value[0] == ISCSI_IPV6_ROUTER_AUTOCFG_ENABLE)
1395 memset(init_fw_cb->ipv6_dflt_rtr_addr, 0,
1396 sizeof(init_fw_cb->ipv6_dflt_rtr_addr));
1397 break;
1398 case ISCSI_NET_PARAM_IFACE_ENABLE:
1399 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) {
1400 init_fw_cb->ipv6_opts |=
1401 cpu_to_le16(IPV6_OPT_IPV6_PROTOCOL_ENABLE);
1402 qla4xxx_create_ipv6_iface(ha);
1403 } else {
1404 init_fw_cb->ipv6_opts &=
1405 cpu_to_le16(~IPV6_OPT_IPV6_PROTOCOL_ENABLE &
1406 0xFFFF);
1407 qla4xxx_destroy_ipv6_iface(ha);
1408 }
1409 break;
1410 case ISCSI_NET_PARAM_VLAN_TAG:
1411 if (iface_param->len != sizeof(init_fw_cb->ipv6_vlan_tag))
1412 break;
1413 init_fw_cb->ipv6_vlan_tag =
1414 cpu_to_be16(*(uint16_t *)iface_param->value);
1415 break;
1416 case ISCSI_NET_PARAM_VLAN_ENABLED:
1417 if (iface_param->value[0] == ISCSI_VLAN_ENABLE)
1418 init_fw_cb->ipv6_opts |=
1419 cpu_to_le16(IPV6_OPT_VLAN_TAGGING_ENABLE);
1420 else
1421 init_fw_cb->ipv6_opts &=
1422 cpu_to_le16(~IPV6_OPT_VLAN_TAGGING_ENABLE);
1423 break;
1424 case ISCSI_NET_PARAM_MTU:
1425 init_fw_cb->eth_mtu_size =
1426 cpu_to_le16(*(uint16_t *)iface_param->value);
1427 break;
1428 case ISCSI_NET_PARAM_PORT:
1429 /* Autocfg applies to even interface */
1430 if (iface_param->iface_num & 0x1)
1431 break;
1432
1433 init_fw_cb->ipv6_port =
1434 cpu_to_le16(*(uint16_t *)iface_param->value);
1435 break;
1436 default:
1437 ql4_printk(KERN_ERR, ha, "Unknown IPv6 param = %d\n",
1438 iface_param->param);
1439 break;
1440 }
1441 }
1442
1443 static void qla4xxx_set_ipv4(struct scsi_qla_host *ha,
1444 struct iscsi_iface_param_info *iface_param,
1445 struct addr_ctrl_blk *init_fw_cb)
1446 {
1447 switch (iface_param->param) {
1448 case ISCSI_NET_PARAM_IPV4_ADDR:
1449 memcpy(init_fw_cb->ipv4_addr, iface_param->value,
1450 sizeof(init_fw_cb->ipv4_addr));
1451 break;
1452 case ISCSI_NET_PARAM_IPV4_SUBNET:
1453 memcpy(init_fw_cb->ipv4_subnet, iface_param->value,
1454 sizeof(init_fw_cb->ipv4_subnet));
1455 break;
1456 case ISCSI_NET_PARAM_IPV4_GW:
1457 memcpy(init_fw_cb->ipv4_gw_addr, iface_param->value,
1458 sizeof(init_fw_cb->ipv4_gw_addr));
1459 break;
1460 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
1461 if (iface_param->value[0] == ISCSI_BOOTPROTO_DHCP)
1462 init_fw_cb->ipv4_tcp_opts |=
1463 cpu_to_le16(TCPOPT_DHCP_ENABLE);
1464 else if (iface_param->value[0] == ISCSI_BOOTPROTO_STATIC)
1465 init_fw_cb->ipv4_tcp_opts &=
1466 cpu_to_le16(~TCPOPT_DHCP_ENABLE);
1467 else
1468 ql4_printk(KERN_ERR, ha, "Invalid IPv4 bootproto\n");
1469 break;
1470 case ISCSI_NET_PARAM_IFACE_ENABLE:
1471 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) {
1472 init_fw_cb->ipv4_ip_opts |=
1473 cpu_to_le16(IPOPT_IPV4_PROTOCOL_ENABLE);
1474 qla4xxx_create_ipv4_iface(ha);
1475 } else {
1476 init_fw_cb->ipv4_ip_opts &=
1477 cpu_to_le16(~IPOPT_IPV4_PROTOCOL_ENABLE &
1478 0xFFFF);
1479 qla4xxx_destroy_ipv4_iface(ha);
1480 }
1481 break;
1482 case ISCSI_NET_PARAM_VLAN_TAG:
1483 if (iface_param->len != sizeof(init_fw_cb->ipv4_vlan_tag))
1484 break;
1485 init_fw_cb->ipv4_vlan_tag =
1486 cpu_to_be16(*(uint16_t *)iface_param->value);
1487 break;
1488 case ISCSI_NET_PARAM_VLAN_ENABLED:
1489 if (iface_param->value[0] == ISCSI_VLAN_ENABLE)
1490 init_fw_cb->ipv4_ip_opts |=
1491 cpu_to_le16(IPOPT_VLAN_TAGGING_ENABLE);
1492 else
1493 init_fw_cb->ipv4_ip_opts &=
1494 cpu_to_le16(~IPOPT_VLAN_TAGGING_ENABLE);
1495 break;
1496 case ISCSI_NET_PARAM_MTU:
1497 init_fw_cb->eth_mtu_size =
1498 cpu_to_le16(*(uint16_t *)iface_param->value);
1499 break;
1500 case ISCSI_NET_PARAM_PORT:
1501 init_fw_cb->ipv4_port =
1502 cpu_to_le16(*(uint16_t *)iface_param->value);
1503 break;
1504 default:
1505 ql4_printk(KERN_ERR, ha, "Unknown IPv4 param = %d\n",
1506 iface_param->param);
1507 break;
1508 }
1509 }
1510
1511 static void
1512 qla4xxx_initcb_to_acb(struct addr_ctrl_blk *init_fw_cb)
1513 {
1514 struct addr_ctrl_blk_def *acb;
1515 acb = (struct addr_ctrl_blk_def *)init_fw_cb;
1516 memset(acb->reserved1, 0, sizeof(acb->reserved1));
1517 memset(acb->reserved2, 0, sizeof(acb->reserved2));
1518 memset(acb->reserved3, 0, sizeof(acb->reserved3));
1519 memset(acb->reserved4, 0, sizeof(acb->reserved4));
1520 memset(acb->reserved5, 0, sizeof(acb->reserved5));
1521 memset(acb->reserved6, 0, sizeof(acb->reserved6));
1522 memset(acb->reserved7, 0, sizeof(acb->reserved7));
1523 memset(acb->reserved8, 0, sizeof(acb->reserved8));
1524 memset(acb->reserved9, 0, sizeof(acb->reserved9));
1525 memset(acb->reserved10, 0, sizeof(acb->reserved10));
1526 memset(acb->reserved11, 0, sizeof(acb->reserved11));
1527 memset(acb->reserved12, 0, sizeof(acb->reserved12));
1528 memset(acb->reserved13, 0, sizeof(acb->reserved13));
1529 memset(acb->reserved14, 0, sizeof(acb->reserved14));
1530 memset(acb->reserved15, 0, sizeof(acb->reserved15));
1531 }
1532
1533 static int
1534 qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data, uint32_t len)
1535 {
1536 struct scsi_qla_host *ha = to_qla_host(shost);
1537 int rval = 0;
1538 struct iscsi_iface_param_info *iface_param = NULL;
1539 struct addr_ctrl_blk *init_fw_cb = NULL;
1540 dma_addr_t init_fw_cb_dma;
1541 uint32_t mbox_cmd[MBOX_REG_COUNT];
1542 uint32_t mbox_sts[MBOX_REG_COUNT];
1543 uint32_t rem = len;
1544 struct nlattr *attr;
1545
1546 init_fw_cb = dma_alloc_coherent(&ha->pdev->dev,
1547 sizeof(struct addr_ctrl_blk),
1548 &init_fw_cb_dma, GFP_KERNEL);
1549 if (!init_fw_cb) {
1550 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc init_cb\n",
1551 __func__);
1552 return -ENOMEM;
1553 }
1554
1555 memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk));
1556 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1557 memset(&mbox_sts, 0, sizeof(mbox_sts));
1558
1559 if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma)) {
1560 ql4_printk(KERN_ERR, ha, "%s: get ifcb failed\n", __func__);
1561 rval = -EIO;
1562 goto exit_init_fw_cb;
1563 }
1564
1565 nla_for_each_attr(attr, data, len, rem) {
1566 iface_param = nla_data(attr);
1567
1568 if (iface_param->param_type != ISCSI_NET_PARAM)
1569 continue;
1570
1571 switch (iface_param->iface_type) {
1572 case ISCSI_IFACE_TYPE_IPV4:
1573 switch (iface_param->iface_num) {
1574 case 0:
1575 qla4xxx_set_ipv4(ha, iface_param, init_fw_cb);
1576 break;
1577 default:
1578 /* Cannot have more than one IPv4 interface */
1579 ql4_printk(KERN_ERR, ha, "Invalid IPv4 iface "
1580 "number = %d\n",
1581 iface_param->iface_num);
1582 break;
1583 }
1584 break;
1585 case ISCSI_IFACE_TYPE_IPV6:
1586 switch (iface_param->iface_num) {
1587 case 0:
1588 case 1:
1589 qla4xxx_set_ipv6(ha, iface_param, init_fw_cb);
1590 break;
1591 default:
1592 /* Cannot have more than two IPv6 interface */
1593 ql4_printk(KERN_ERR, ha, "Invalid IPv6 iface "
1594 "number = %d\n",
1595 iface_param->iface_num);
1596 break;
1597 }
1598 break;
1599 default:
1600 ql4_printk(KERN_ERR, ha, "Invalid iface type\n");
1601 break;
1602 }
1603 }
1604
1605 init_fw_cb->cookie = cpu_to_le32(0x11BEAD5A);
1606
1607 rval = qla4xxx_set_flash(ha, init_fw_cb_dma, FLASH_SEGMENT_IFCB,
1608 sizeof(struct addr_ctrl_blk),
1609 FLASH_OPT_RMW_COMMIT);
1610 if (rval != QLA_SUCCESS) {
1611 ql4_printk(KERN_ERR, ha, "%s: set flash mbx failed\n",
1612 __func__);
1613 rval = -EIO;
1614 goto exit_init_fw_cb;
1615 }
1616
1617 rval = qla4xxx_disable_acb(ha);
1618 if (rval != QLA_SUCCESS) {
1619 ql4_printk(KERN_ERR, ha, "%s: disable acb mbx failed\n",
1620 __func__);
1621 rval = -EIO;
1622 goto exit_init_fw_cb;
1623 }
1624
1625 wait_for_completion_timeout(&ha->disable_acb_comp,
1626 DISABLE_ACB_TOV * HZ);
1627
1628 qla4xxx_initcb_to_acb(init_fw_cb);
1629
1630 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma);
1631 if (rval != QLA_SUCCESS) {
1632 ql4_printk(KERN_ERR, ha, "%s: set acb mbx failed\n",
1633 __func__);
1634 rval = -EIO;
1635 goto exit_init_fw_cb;
1636 }
1637
1638 memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk));
1639 qla4xxx_update_local_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb,
1640 init_fw_cb_dma);
1641
1642 exit_init_fw_cb:
1643 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk),
1644 init_fw_cb, init_fw_cb_dma);
1645
1646 return rval;
1647 }
1648
1649 static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess,
1650 enum iscsi_param param, char *buf)
1651 {
1652 struct iscsi_session *sess = cls_sess->dd_data;
1653 struct ddb_entry *ddb_entry = sess->dd_data;
1654 struct scsi_qla_host *ha = ddb_entry->ha;
1655 struct iscsi_cls_conn *cls_conn = ddb_entry->conn;
1656 struct ql4_chap_table chap_tbl;
1657 int rval, len;
1658 uint16_t idx;
1659
1660 memset(&chap_tbl, 0, sizeof(chap_tbl));
1661 switch (param) {
1662 case ISCSI_PARAM_CHAP_IN_IDX:
1663 rval = qla4xxx_get_chap_index(ha, sess->username_in,
1664 sess->password_in, BIDI_CHAP,
1665 &idx);
1666 if (rval)
1667 len = sprintf(buf, "\n");
1668 else
1669 len = sprintf(buf, "%hu\n", idx);
1670 break;
1671 case ISCSI_PARAM_CHAP_OUT_IDX:
1672 if (ddb_entry->ddb_type == FLASH_DDB) {
1673 if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) {
1674 idx = ddb_entry->chap_tbl_idx;
1675 rval = QLA_SUCCESS;
1676 } else {
1677 rval = QLA_ERROR;
1678 }
1679 } else {
1680 rval = qla4xxx_get_chap_index(ha, sess->username,
1681 sess->password,
1682 LOCAL_CHAP, &idx);
1683 }
1684 if (rval)
1685 len = sprintf(buf, "\n");
1686 else
1687 len = sprintf(buf, "%hu\n", idx);
1688 break;
1689 case ISCSI_PARAM_USERNAME:
1690 case ISCSI_PARAM_PASSWORD:
1691 /* First, populate session username and password for FLASH DDB,
1692 * if not already done. This happens when session login fails
1693 * for a FLASH DDB.
1694 */
1695 if (ddb_entry->ddb_type == FLASH_DDB &&
1696 ddb_entry->chap_tbl_idx != INVALID_ENTRY &&
1697 !sess->username && !sess->password) {
1698 idx = ddb_entry->chap_tbl_idx;
1699 rval = qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name,
1700 chap_tbl.secret,
1701 idx);
1702 if (!rval) {
1703 iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME,
1704 (char *)chap_tbl.name,
1705 strlen((char *)chap_tbl.name));
1706 iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD,
1707 (char *)chap_tbl.secret,
1708 chap_tbl.secret_len);
1709 }
1710 }
1711 /* allow fall-through */
1712 default:
1713 return iscsi_session_get_param(cls_sess, param, buf);
1714 }
1715
1716 return len;
1717 }
1718
1719 static int qla4xxx_conn_get_param(struct iscsi_cls_conn *cls_conn,
1720 enum iscsi_param param, char *buf)
1721 {
1722 struct iscsi_conn *conn;
1723 struct qla_conn *qla_conn;
1724 struct sockaddr *dst_addr;
1725 int len = 0;
1726
1727 conn = cls_conn->dd_data;
1728 qla_conn = conn->dd_data;
1729 dst_addr = (struct sockaddr *)&qla_conn->qla_ep->dst_addr;
1730
1731 switch (param) {
1732 case ISCSI_PARAM_CONN_PORT:
1733 case ISCSI_PARAM_CONN_ADDRESS:
1734 return iscsi_conn_get_addr_param((struct sockaddr_storage *)
1735 dst_addr, param, buf);
1736 default:
1737 return iscsi_conn_get_param(cls_conn, param, buf);
1738 }
1739
1740 return len;
1741
1742 }
1743
1744 int qla4xxx_get_ddb_index(struct scsi_qla_host *ha, uint16_t *ddb_index)
1745 {
1746 uint32_t mbx_sts = 0;
1747 uint16_t tmp_ddb_index;
1748 int ret;
1749
1750 get_ddb_index:
1751 tmp_ddb_index = find_first_zero_bit(ha->ddb_idx_map, MAX_DDB_ENTRIES);
1752
1753 if (tmp_ddb_index >= MAX_DDB_ENTRIES) {
1754 DEBUG2(ql4_printk(KERN_INFO, ha,
1755 "Free DDB index not available\n"));
1756 ret = QLA_ERROR;
1757 goto exit_get_ddb_index;
1758 }
1759
1760 if (test_and_set_bit(tmp_ddb_index, ha->ddb_idx_map))
1761 goto get_ddb_index;
1762
1763 DEBUG2(ql4_printk(KERN_INFO, ha,
1764 "Found a free DDB index at %d\n", tmp_ddb_index));
1765 ret = qla4xxx_req_ddb_entry(ha, tmp_ddb_index, &mbx_sts);
1766 if (ret == QLA_ERROR) {
1767 if (mbx_sts == MBOX_STS_COMMAND_ERROR) {
1768 ql4_printk(KERN_INFO, ha,
1769 "DDB index = %d not available trying next\n",
1770 tmp_ddb_index);
1771 goto get_ddb_index;
1772 }
1773 DEBUG2(ql4_printk(KERN_INFO, ha,
1774 "Free FW DDB not available\n"));
1775 }
1776
1777 *ddb_index = tmp_ddb_index;
1778
1779 exit_get_ddb_index:
1780 return ret;
1781 }
1782
1783 static int qla4xxx_match_ipaddress(struct scsi_qla_host *ha,
1784 struct ddb_entry *ddb_entry,
1785 char *existing_ipaddr,
1786 char *user_ipaddr)
1787 {
1788 uint8_t dst_ipaddr[IPv6_ADDR_LEN];
1789 char formatted_ipaddr[DDB_IPADDR_LEN];
1790 int status = QLA_SUCCESS, ret = 0;
1791
1792 if (ddb_entry->fw_ddb_entry.options & DDB_OPT_IPV6_DEVICE) {
1793 ret = in6_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr,
1794 '\0', NULL);
1795 if (ret == 0) {
1796 status = QLA_ERROR;
1797 goto out_match;
1798 }
1799 ret = sprintf(formatted_ipaddr, "%pI6", dst_ipaddr);
1800 } else {
1801 ret = in4_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr,
1802 '\0', NULL);
1803 if (ret == 0) {
1804 status = QLA_ERROR;
1805 goto out_match;
1806 }
1807 ret = sprintf(formatted_ipaddr, "%pI4", dst_ipaddr);
1808 }
1809
1810 if (strcmp(existing_ipaddr, formatted_ipaddr))
1811 status = QLA_ERROR;
1812
1813 out_match:
1814 return status;
1815 }
1816
1817 static int qla4xxx_match_fwdb_session(struct scsi_qla_host *ha,
1818 struct iscsi_cls_conn *cls_conn)
1819 {
1820 int idx = 0, max_ddbs, rval;
1821 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
1822 struct iscsi_session *sess, *existing_sess;
1823 struct iscsi_conn *conn, *existing_conn;
1824 struct ddb_entry *ddb_entry;
1825
1826 sess = cls_sess->dd_data;
1827 conn = cls_conn->dd_data;
1828
1829 if (sess->targetname == NULL ||
1830 conn->persistent_address == NULL ||
1831 conn->persistent_port == 0)
1832 return QLA_ERROR;
1833
1834 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
1835 MAX_DEV_DB_ENTRIES;
1836
1837 for (idx = 0; idx < max_ddbs; idx++) {
1838 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
1839 if (ddb_entry == NULL)
1840 continue;
1841
1842 if (ddb_entry->ddb_type != FLASH_DDB)
1843 continue;
1844
1845 existing_sess = ddb_entry->sess->dd_data;
1846 existing_conn = ddb_entry->conn->dd_data;
1847
1848 if (existing_sess->targetname == NULL ||
1849 existing_conn->persistent_address == NULL ||
1850 existing_conn->persistent_port == 0)
1851 continue;
1852
1853 DEBUG2(ql4_printk(KERN_INFO, ha,
1854 "IQN = %s User IQN = %s\n",
1855 existing_sess->targetname,
1856 sess->targetname));
1857
1858 DEBUG2(ql4_printk(KERN_INFO, ha,
1859 "IP = %s User IP = %s\n",
1860 existing_conn->persistent_address,
1861 conn->persistent_address));
1862
1863 DEBUG2(ql4_printk(KERN_INFO, ha,
1864 "Port = %d User Port = %d\n",
1865 existing_conn->persistent_port,
1866 conn->persistent_port));
1867
1868 if (strcmp(existing_sess->targetname, sess->targetname))
1869 continue;
1870 rval = qla4xxx_match_ipaddress(ha, ddb_entry,
1871 existing_conn->persistent_address,
1872 conn->persistent_address);
1873 if (rval == QLA_ERROR)
1874 continue;
1875 if (existing_conn->persistent_port != conn->persistent_port)
1876 continue;
1877 break;
1878 }
1879
1880 if (idx == max_ddbs)
1881 return QLA_ERROR;
1882
1883 DEBUG2(ql4_printk(KERN_INFO, ha,
1884 "Match found in fwdb sessions\n"));
1885 return QLA_SUCCESS;
1886 }
1887
1888 static struct iscsi_cls_session *
1889 qla4xxx_session_create(struct iscsi_endpoint *ep,
1890 uint16_t cmds_max, uint16_t qdepth,
1891 uint32_t initial_cmdsn)
1892 {
1893 struct iscsi_cls_session *cls_sess;
1894 struct scsi_qla_host *ha;
1895 struct qla_endpoint *qla_ep;
1896 struct ddb_entry *ddb_entry;
1897 uint16_t ddb_index;
1898 struct iscsi_session *sess;
1899 struct sockaddr *dst_addr;
1900 int ret;
1901
1902 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
1903 if (!ep) {
1904 printk(KERN_ERR "qla4xxx: missing ep.\n");
1905 return NULL;
1906 }
1907
1908 qla_ep = ep->dd_data;
1909 dst_addr = (struct sockaddr *)&qla_ep->dst_addr;
1910 ha = to_qla_host(qla_ep->host);
1911
1912 ret = qla4xxx_get_ddb_index(ha, &ddb_index);
1913 if (ret == QLA_ERROR)
1914 return NULL;
1915
1916 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, qla_ep->host,
1917 cmds_max, sizeof(struct ddb_entry),
1918 sizeof(struct ql4_task_data),
1919 initial_cmdsn, ddb_index);
1920 if (!cls_sess)
1921 return NULL;
1922
1923 sess = cls_sess->dd_data;
1924 ddb_entry = sess->dd_data;
1925 ddb_entry->fw_ddb_index = ddb_index;
1926 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE;
1927 ddb_entry->ha = ha;
1928 ddb_entry->sess = cls_sess;
1929 ddb_entry->unblock_sess = qla4xxx_unblock_ddb;
1930 ddb_entry->ddb_change = qla4xxx_ddb_change;
1931 cls_sess->recovery_tmo = ql4xsess_recovery_tmo;
1932 ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry;
1933 ha->tot_ddbs++;
1934
1935 return cls_sess;
1936 }
1937
1938 static void qla4xxx_session_destroy(struct iscsi_cls_session *cls_sess)
1939 {
1940 struct iscsi_session *sess;
1941 struct ddb_entry *ddb_entry;
1942 struct scsi_qla_host *ha;
1943 unsigned long flags, wtime;
1944 struct dev_db_entry *fw_ddb_entry = NULL;
1945 dma_addr_t fw_ddb_entry_dma;
1946 uint32_t ddb_state;
1947 int ret;
1948
1949 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
1950 sess = cls_sess->dd_data;
1951 ddb_entry = sess->dd_data;
1952 ha = ddb_entry->ha;
1953
1954 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
1955 &fw_ddb_entry_dma, GFP_KERNEL);
1956 if (!fw_ddb_entry) {
1957 ql4_printk(KERN_ERR, ha,
1958 "%s: Unable to allocate dma buffer\n", __func__);
1959 goto destroy_session;
1960 }
1961
1962 wtime = jiffies + (HZ * LOGOUT_TOV);
1963 do {
1964 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
1965 fw_ddb_entry, fw_ddb_entry_dma,
1966 NULL, NULL, &ddb_state, NULL,
1967 NULL, NULL);
1968 if (ret == QLA_ERROR)
1969 goto destroy_session;
1970
1971 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) ||
1972 (ddb_state == DDB_DS_SESSION_FAILED))
1973 goto destroy_session;
1974
1975 schedule_timeout_uninterruptible(HZ);
1976 } while ((time_after(wtime, jiffies)));
1977
1978 destroy_session:
1979 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
1980
1981 spin_lock_irqsave(&ha->hardware_lock, flags);
1982 qla4xxx_free_ddb(ha, ddb_entry);
1983 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1984
1985 iscsi_session_teardown(cls_sess);
1986
1987 if (fw_ddb_entry)
1988 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
1989 fw_ddb_entry, fw_ddb_entry_dma);
1990 }
1991
1992 static struct iscsi_cls_conn *
1993 qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx)
1994 {
1995 struct iscsi_cls_conn *cls_conn;
1996 struct iscsi_session *sess;
1997 struct ddb_entry *ddb_entry;
1998
1999 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
2000 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn),
2001 conn_idx);
2002 if (!cls_conn)
2003 return NULL;
2004
2005 sess = cls_sess->dd_data;
2006 ddb_entry = sess->dd_data;
2007 ddb_entry->conn = cls_conn;
2008
2009 return cls_conn;
2010 }
2011
2012 static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session,
2013 struct iscsi_cls_conn *cls_conn,
2014 uint64_t transport_fd, int is_leading)
2015 {
2016 struct iscsi_conn *conn;
2017 struct qla_conn *qla_conn;
2018 struct iscsi_endpoint *ep;
2019
2020 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
2021
2022 if (iscsi_conn_bind(cls_session, cls_conn, is_leading))
2023 return -EINVAL;
2024 ep = iscsi_lookup_endpoint(transport_fd);
2025 conn = cls_conn->dd_data;
2026 qla_conn = conn->dd_data;
2027 qla_conn->qla_ep = ep->dd_data;
2028 return 0;
2029 }
2030
2031 static int qla4xxx_conn_start(struct iscsi_cls_conn *cls_conn)
2032 {
2033 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
2034 struct iscsi_session *sess;
2035 struct ddb_entry *ddb_entry;
2036 struct scsi_qla_host *ha;
2037 struct dev_db_entry *fw_ddb_entry = NULL;
2038 dma_addr_t fw_ddb_entry_dma;
2039 uint32_t mbx_sts = 0;
2040 int ret = 0;
2041 int status = QLA_SUCCESS;
2042
2043 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
2044 sess = cls_sess->dd_data;
2045 ddb_entry = sess->dd_data;
2046 ha = ddb_entry->ha;
2047
2048 /* Check if we have matching FW DDB, if yes then do not
2049 * login to this target. This could cause target to logout previous
2050 * connection
2051 */
2052 ret = qla4xxx_match_fwdb_session(ha, cls_conn);
2053 if (ret == QLA_SUCCESS) {
2054 ql4_printk(KERN_INFO, ha,
2055 "Session already exist in FW.\n");
2056 ret = -EEXIST;
2057 goto exit_conn_start;
2058 }
2059
2060 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
2061 &fw_ddb_entry_dma, GFP_KERNEL);
2062 if (!fw_ddb_entry) {
2063 ql4_printk(KERN_ERR, ha,
2064 "%s: Unable to allocate dma buffer\n", __func__);
2065 ret = -ENOMEM;
2066 goto exit_conn_start;
2067 }
2068
2069 ret = qla4xxx_set_param_ddbentry(ha, ddb_entry, cls_conn, &mbx_sts);
2070 if (ret) {
2071 /* If iscsid is stopped and started then no need to do
2072 * set param again since ddb state will be already
2073 * active and FW does not allow set ddb to an
2074 * active session.
2075 */
2076 if (mbx_sts)
2077 if (ddb_entry->fw_ddb_device_state ==
2078 DDB_DS_SESSION_ACTIVE) {
2079 ddb_entry->unblock_sess(ddb_entry->sess);
2080 goto exit_set_param;
2081 }
2082
2083 ql4_printk(KERN_ERR, ha, "%s: Failed set param for index[%d]\n",
2084 __func__, ddb_entry->fw_ddb_index);
2085 goto exit_conn_start;
2086 }
2087
2088 status = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index);
2089 if (status == QLA_ERROR) {
2090 ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__,
2091 sess->targetname);
2092 ret = -EINVAL;
2093 goto exit_conn_start;
2094 }
2095
2096 if (ddb_entry->fw_ddb_device_state == DDB_DS_NO_CONNECTION_ACTIVE)
2097 ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS;
2098
2099 DEBUG2(printk(KERN_INFO "%s: DDB state [%d]\n", __func__,
2100 ddb_entry->fw_ddb_device_state));
2101
2102 exit_set_param:
2103 ret = 0;
2104
2105 exit_conn_start:
2106 if (fw_ddb_entry)
2107 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
2108 fw_ddb_entry, fw_ddb_entry_dma);
2109 return ret;
2110 }
2111
2112 static void qla4xxx_conn_destroy(struct iscsi_cls_conn *cls_conn)
2113 {
2114 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
2115 struct iscsi_session *sess;
2116 struct scsi_qla_host *ha;
2117 struct ddb_entry *ddb_entry;
2118 int options;
2119
2120 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
2121 sess = cls_sess->dd_data;
2122 ddb_entry = sess->dd_data;
2123 ha = ddb_entry->ha;
2124
2125 options = LOGOUT_OPTION_CLOSE_SESSION;
2126 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR)
2127 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__);
2128 }
2129
2130 static void qla4xxx_task_work(struct work_struct *wdata)
2131 {
2132 struct ql4_task_data *task_data;
2133 struct scsi_qla_host *ha;
2134 struct passthru_status *sts;
2135 struct iscsi_task *task;
2136 struct iscsi_hdr *hdr;
2137 uint8_t *data;
2138 uint32_t data_len;
2139 struct iscsi_conn *conn;
2140 int hdr_len;
2141 itt_t itt;
2142
2143 task_data = container_of(wdata, struct ql4_task_data, task_work);
2144 ha = task_data->ha;
2145 task = task_data->task;
2146 sts = &task_data->sts;
2147 hdr_len = sizeof(struct iscsi_hdr);
2148
2149 DEBUG3(printk(KERN_INFO "Status returned\n"));
2150 DEBUG3(qla4xxx_dump_buffer(sts, 64));
2151 DEBUG3(printk(KERN_INFO "Response buffer"));
2152 DEBUG3(qla4xxx_dump_buffer(task_data->resp_buffer, 64));
2153
2154 conn = task->conn;
2155
2156 switch (sts->completionStatus) {
2157 case PASSTHRU_STATUS_COMPLETE:
2158 hdr = (struct iscsi_hdr *)task_data->resp_buffer;
2159 /* Assign back the itt in hdr, until we use the PREASSIGN_TAG */
2160 itt = sts->handle;
2161 hdr->itt = itt;
2162 data = task_data->resp_buffer + hdr_len;
2163 data_len = task_data->resp_len - hdr_len;
2164 iscsi_complete_pdu(conn, hdr, data, data_len);
2165 break;
2166 default:
2167 ql4_printk(KERN_ERR, ha, "Passthru failed status = 0x%x\n",
2168 sts->completionStatus);
2169 break;
2170 }
2171 return;
2172 }
2173
2174 static int qla4xxx_alloc_pdu(struct iscsi_task *task, uint8_t opcode)
2175 {
2176 struct ql4_task_data *task_data;
2177 struct iscsi_session *sess;
2178 struct ddb_entry *ddb_entry;
2179 struct scsi_qla_host *ha;
2180 int hdr_len;
2181
2182 sess = task->conn->session;
2183 ddb_entry = sess->dd_data;
2184 ha = ddb_entry->ha;
2185 task_data = task->dd_data;
2186 memset(task_data, 0, sizeof(struct ql4_task_data));
2187
2188 if (task->sc) {
2189 ql4_printk(KERN_INFO, ha,
2190 "%s: SCSI Commands not implemented\n", __func__);
2191 return -EINVAL;
2192 }
2193
2194 hdr_len = sizeof(struct iscsi_hdr);
2195 task_data->ha = ha;
2196 task_data->task = task;
2197
2198 if (task->data_count) {
2199 task_data->data_dma = dma_map_single(&ha->pdev->dev, task->data,
2200 task->data_count,
2201 PCI_DMA_TODEVICE);
2202 }
2203
2204 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n",
2205 __func__, task->conn->max_recv_dlength, hdr_len));
2206
2207 task_data->resp_len = task->conn->max_recv_dlength + hdr_len;
2208 task_data->resp_buffer = dma_alloc_coherent(&ha->pdev->dev,
2209 task_data->resp_len,
2210 &task_data->resp_dma,
2211 GFP_ATOMIC);
2212 if (!task_data->resp_buffer)
2213 goto exit_alloc_pdu;
2214
2215 task_data->req_len = task->data_count + hdr_len;
2216 task_data->req_buffer = dma_alloc_coherent(&ha->pdev->dev,
2217 task_data->req_len,
2218 &task_data->req_dma,
2219 GFP_ATOMIC);
2220 if (!task_data->req_buffer)
2221 goto exit_alloc_pdu;
2222
2223 task->hdr = task_data->req_buffer;
2224
2225 INIT_WORK(&task_data->task_work, qla4xxx_task_work);
2226
2227 return 0;
2228
2229 exit_alloc_pdu:
2230 if (task_data->resp_buffer)
2231 dma_free_coherent(&ha->pdev->dev, task_data->resp_len,
2232 task_data->resp_buffer, task_data->resp_dma);
2233
2234 if (task_data->req_buffer)
2235 dma_free_coherent(&ha->pdev->dev, task_data->req_len,
2236 task_data->req_buffer, task_data->req_dma);
2237 return -ENOMEM;
2238 }
2239
2240 static void qla4xxx_task_cleanup(struct iscsi_task *task)
2241 {
2242 struct ql4_task_data *task_data;
2243 struct iscsi_session *sess;
2244 struct ddb_entry *ddb_entry;
2245 struct scsi_qla_host *ha;
2246 int hdr_len;
2247
2248 hdr_len = sizeof(struct iscsi_hdr);
2249 sess = task->conn->session;
2250 ddb_entry = sess->dd_data;
2251 ha = ddb_entry->ha;
2252 task_data = task->dd_data;
2253
2254 if (task->data_count) {
2255 dma_unmap_single(&ha->pdev->dev, task_data->data_dma,
2256 task->data_count, PCI_DMA_TODEVICE);
2257 }
2258
2259 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n",
2260 __func__, task->conn->max_recv_dlength, hdr_len));
2261
2262 dma_free_coherent(&ha->pdev->dev, task_data->resp_len,
2263 task_data->resp_buffer, task_data->resp_dma);
2264 dma_free_coherent(&ha->pdev->dev, task_data->req_len,
2265 task_data->req_buffer, task_data->req_dma);
2266 return;
2267 }
2268
2269 static int qla4xxx_task_xmit(struct iscsi_task *task)
2270 {
2271 struct scsi_cmnd *sc = task->sc;
2272 struct iscsi_session *sess = task->conn->session;
2273 struct ddb_entry *ddb_entry = sess->dd_data;
2274 struct scsi_qla_host *ha = ddb_entry->ha;
2275
2276 if (!sc)
2277 return qla4xxx_send_passthru0(task);
2278
2279 ql4_printk(KERN_INFO, ha, "%s: scsi cmd xmit not implemented\n",
2280 __func__);
2281 return -ENOSYS;
2282 }
2283
2284 static int qla4xxx_copy_from_fwddb_param(struct iscsi_bus_flash_session *sess,
2285 struct iscsi_bus_flash_conn *conn,
2286 struct dev_db_entry *fw_ddb_entry)
2287 {
2288 unsigned long options = 0;
2289 int rc = 0;
2290
2291 options = le16_to_cpu(fw_ddb_entry->options);
2292 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options);
2293 if (test_bit(OPT_IPV6_DEVICE, &options)) {
2294 rc = iscsi_switch_str_param(&sess->portal_type,
2295 PORTAL_TYPE_IPV6);
2296 if (rc)
2297 goto exit_copy;
2298 } else {
2299 rc = iscsi_switch_str_param(&sess->portal_type,
2300 PORTAL_TYPE_IPV4);
2301 if (rc)
2302 goto exit_copy;
2303 }
2304
2305 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE,
2306 &options);
2307 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options);
2308 sess->entry_state = test_bit(OPT_ENTRY_STATE, &options);
2309
2310 options = le16_to_cpu(fw_ddb_entry->iscsi_options);
2311 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options);
2312 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options);
2313 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options);
2314 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options);
2315 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER,
2316 &options);
2317 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options);
2318 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options);
2319 conn->snack_req_en = test_bit(ISCSIOPT_SNACK_REQ_EN, &options);
2320 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN,
2321 &options);
2322 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options);
2323 sess->discovery_auth_optional =
2324 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options);
2325 if (test_bit(ISCSIOPT_ERL1, &options))
2326 sess->erl |= BIT_1;
2327 if (test_bit(ISCSIOPT_ERL0, &options))
2328 sess->erl |= BIT_0;
2329
2330 options = le16_to_cpu(fw_ddb_entry->tcp_options);
2331 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options);
2332 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options);
2333 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options);
2334 if (test_bit(TCPOPT_TIMER_SCALE3, &options))
2335 conn->tcp_timer_scale |= BIT_3;
2336 if (test_bit(TCPOPT_TIMER_SCALE2, &options))
2337 conn->tcp_timer_scale |= BIT_2;
2338 if (test_bit(TCPOPT_TIMER_SCALE1, &options))
2339 conn->tcp_timer_scale |= BIT_1;
2340
2341 conn->tcp_timer_scale >>= 1;
2342 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options);
2343
2344 options = le16_to_cpu(fw_ddb_entry->ip_options);
2345 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options);
2346
2347 conn->max_recv_dlength = BYTE_UNITS *
2348 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len);
2349 conn->max_xmit_dlength = BYTE_UNITS *
2350 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len);
2351 sess->first_burst = BYTE_UNITS *
2352 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len);
2353 sess->max_burst = BYTE_UNITS *
2354 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len);
2355 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t);
2356 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
2357 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain);
2358 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
2359 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss);
2360 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf;
2361 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf;
2362 conn->ipv6_flow_label = le16_to_cpu(fw_ddb_entry->ipv6_flow_lbl);
2363 conn->keepalive_timeout = le16_to_cpu(fw_ddb_entry->ka_timeout);
2364 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port);
2365 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn);
2366 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn);
2367 sess->discovery_parent_idx = le16_to_cpu(fw_ddb_entry->ddb_link);
2368 sess->discovery_parent_type = le16_to_cpu(fw_ddb_entry->ddb_link);
2369 sess->chap_out_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
2370 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid);
2371
2372 sess->default_taskmgmt_timeout =
2373 le16_to_cpu(fw_ddb_entry->def_timeout);
2374 conn->port = le16_to_cpu(fw_ddb_entry->port);
2375
2376 options = le16_to_cpu(fw_ddb_entry->options);
2377 conn->ipaddress = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL);
2378 if (!conn->ipaddress) {
2379 rc = -ENOMEM;
2380 goto exit_copy;
2381 }
2382
2383 conn->redirect_ipaddr = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL);
2384 if (!conn->redirect_ipaddr) {
2385 rc = -ENOMEM;
2386 goto exit_copy;
2387 }
2388
2389 memcpy(conn->ipaddress, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN);
2390 memcpy(conn->redirect_ipaddr, fw_ddb_entry->tgt_addr, IPv6_ADDR_LEN);
2391
2392 if (test_bit(OPT_IPV6_DEVICE, &options)) {
2393 conn->ipv6_traffic_class = fw_ddb_entry->ipv4_tos;
2394
2395 conn->link_local_ipv6_addr = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL);
2396 if (!conn->link_local_ipv6_addr) {
2397 rc = -ENOMEM;
2398 goto exit_copy;
2399 }
2400
2401 memcpy(conn->link_local_ipv6_addr,
2402 fw_ddb_entry->link_local_ipv6_addr, IPv6_ADDR_LEN);
2403 } else {
2404 conn->ipv4_tos = fw_ddb_entry->ipv4_tos;
2405 }
2406
2407 if (fw_ddb_entry->iscsi_name[0]) {
2408 rc = iscsi_switch_str_param(&sess->targetname,
2409 (char *)fw_ddb_entry->iscsi_name);
2410 if (rc)
2411 goto exit_copy;
2412 }
2413
2414 if (fw_ddb_entry->iscsi_alias[0]) {
2415 rc = iscsi_switch_str_param(&sess->targetalias,
2416 (char *)fw_ddb_entry->iscsi_alias);
2417 if (rc)
2418 goto exit_copy;
2419 }
2420
2421 COPY_ISID(sess->isid, fw_ddb_entry->isid);
2422
2423 exit_copy:
2424 return rc;
2425 }
2426
2427 static int qla4xxx_copy_to_fwddb_param(struct iscsi_bus_flash_session *sess,
2428 struct iscsi_bus_flash_conn *conn,
2429 struct dev_db_entry *fw_ddb_entry)
2430 {
2431 uint16_t options;
2432 int rc = 0;
2433
2434 options = le16_to_cpu(fw_ddb_entry->options);
2435 SET_BITVAL(conn->is_fw_assigned_ipv6, options, BIT_11);
2436 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4))
2437 options |= BIT_8;
2438 else
2439 options &= ~BIT_8;
2440
2441 SET_BITVAL(sess->auto_snd_tgt_disable, options, BIT_6);
2442 SET_BITVAL(sess->discovery_sess, options, BIT_4);
2443 SET_BITVAL(sess->entry_state, options, BIT_3);
2444 fw_ddb_entry->options = cpu_to_le16(options);
2445
2446 options = le16_to_cpu(fw_ddb_entry->iscsi_options);
2447 SET_BITVAL(conn->hdrdgst_en, options, BIT_13);
2448 SET_BITVAL(conn->datadgst_en, options, BIT_12);
2449 SET_BITVAL(sess->imm_data_en, options, BIT_11);
2450 SET_BITVAL(sess->initial_r2t_en, options, BIT_10);
2451 SET_BITVAL(sess->dataseq_inorder_en, options, BIT_9);
2452 SET_BITVAL(sess->pdu_inorder_en, options, BIT_8);
2453 SET_BITVAL(sess->chap_auth_en, options, BIT_7);
2454 SET_BITVAL(conn->snack_req_en, options, BIT_6);
2455 SET_BITVAL(sess->discovery_logout_en, options, BIT_5);
2456 SET_BITVAL(sess->bidi_chap_en, options, BIT_4);
2457 SET_BITVAL(sess->discovery_auth_optional, options, BIT_3);
2458 SET_BITVAL(sess->erl & BIT_1, options, BIT_1);
2459 SET_BITVAL(sess->erl & BIT_0, options, BIT_0);
2460 fw_ddb_entry->iscsi_options = cpu_to_le16(options);
2461
2462 options = le16_to_cpu(fw_ddb_entry->tcp_options);
2463 SET_BITVAL(conn->tcp_timestamp_stat, options, BIT_6);
2464 SET_BITVAL(conn->tcp_nagle_disable, options, BIT_5);
2465 SET_BITVAL(conn->tcp_wsf_disable, options, BIT_4);
2466 SET_BITVAL(conn->tcp_timer_scale & BIT_2, options, BIT_3);
2467 SET_BITVAL(conn->tcp_timer_scale & BIT_1, options, BIT_2);
2468 SET_BITVAL(conn->tcp_timer_scale & BIT_0, options, BIT_1);
2469 SET_BITVAL(conn->tcp_timestamp_en, options, BIT_0);
2470 fw_ddb_entry->tcp_options = cpu_to_le16(options);
2471
2472 options = le16_to_cpu(fw_ddb_entry->ip_options);
2473 SET_BITVAL(conn->fragment_disable, options, BIT_4);
2474 fw_ddb_entry->ip_options = cpu_to_le16(options);
2475
2476 fw_ddb_entry->iscsi_max_outsnd_r2t = cpu_to_le16(sess->max_r2t);
2477 fw_ddb_entry->iscsi_max_rcv_data_seg_len =
2478 cpu_to_le16(conn->max_recv_dlength / BYTE_UNITS);
2479 fw_ddb_entry->iscsi_max_snd_data_seg_len =
2480 cpu_to_le16(conn->max_xmit_dlength / BYTE_UNITS);
2481 fw_ddb_entry->iscsi_first_burst_len =
2482 cpu_to_le16(sess->first_burst / BYTE_UNITS);
2483 fw_ddb_entry->iscsi_max_burst_len = cpu_to_le16(sess->max_burst /
2484 BYTE_UNITS);
2485 fw_ddb_entry->iscsi_def_time2wait = cpu_to_le16(sess->time2wait);
2486 fw_ddb_entry->iscsi_def_time2retain = cpu_to_le16(sess->time2retain);
2487 fw_ddb_entry->tgt_portal_grp = cpu_to_le16(sess->tpgt);
2488 fw_ddb_entry->mss = cpu_to_le16(conn->max_segment_size);
2489 fw_ddb_entry->tcp_xmt_wsf = (uint8_t) cpu_to_le32(conn->tcp_xmit_wsf);
2490 fw_ddb_entry->tcp_rcv_wsf = (uint8_t) cpu_to_le32(conn->tcp_recv_wsf);
2491 fw_ddb_entry->ipv6_flow_lbl = cpu_to_le16(conn->ipv6_flow_label);
2492 fw_ddb_entry->ka_timeout = cpu_to_le16(conn->keepalive_timeout);
2493 fw_ddb_entry->lcl_port = cpu_to_le16(conn->local_port);
2494 fw_ddb_entry->stat_sn = cpu_to_le32(conn->statsn);
2495 fw_ddb_entry->exp_stat_sn = cpu_to_le32(conn->exp_statsn);
2496 fw_ddb_entry->ddb_link = cpu_to_le16(sess->discovery_parent_idx);
2497 fw_ddb_entry->chap_tbl_idx = cpu_to_le16(sess->chap_out_idx);
2498 fw_ddb_entry->tsid = cpu_to_le16(sess->tsid);
2499 fw_ddb_entry->port = cpu_to_le16(conn->port);
2500 fw_ddb_entry->def_timeout =
2501 cpu_to_le16(sess->default_taskmgmt_timeout);
2502
2503 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4))
2504 fw_ddb_entry->ipv4_tos = conn->ipv6_traffic_class;
2505 else
2506 fw_ddb_entry->ipv4_tos = conn->ipv4_tos;
2507
2508 if (conn->ipaddress)
2509 memcpy(fw_ddb_entry->ip_addr, conn->ipaddress,
2510 sizeof(fw_ddb_entry->ip_addr));
2511
2512 if (conn->redirect_ipaddr)
2513 memcpy(fw_ddb_entry->tgt_addr, conn->redirect_ipaddr,
2514 sizeof(fw_ddb_entry->tgt_addr));
2515
2516 if (conn->link_local_ipv6_addr)
2517 memcpy(fw_ddb_entry->link_local_ipv6_addr,
2518 conn->link_local_ipv6_addr,
2519 sizeof(fw_ddb_entry->link_local_ipv6_addr));
2520
2521 if (sess->targetname)
2522 memcpy(fw_ddb_entry->iscsi_name, sess->targetname,
2523 sizeof(fw_ddb_entry->iscsi_name));
2524
2525 if (sess->targetalias)
2526 memcpy(fw_ddb_entry->iscsi_alias, sess->targetalias,
2527 sizeof(fw_ddb_entry->iscsi_alias));
2528
2529 COPY_ISID(fw_ddb_entry->isid, sess->isid);
2530
2531 return rc;
2532 }
2533
2534 static void qla4xxx_copy_to_sess_conn_params(struct iscsi_conn *conn,
2535 struct iscsi_session *sess,
2536 struct dev_db_entry *fw_ddb_entry)
2537 {
2538 unsigned long options = 0;
2539 uint16_t ddb_link;
2540 uint16_t disc_parent;
2541
2542 options = le16_to_cpu(fw_ddb_entry->options);
2543 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options);
2544 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE,
2545 &options);
2546 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options);
2547
2548 options = le16_to_cpu(fw_ddb_entry->iscsi_options);
2549 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options);
2550 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options);
2551 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options);
2552 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options);
2553 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER,
2554 &options);
2555 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options);
2556 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options);
2557 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN,
2558 &options);
2559 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options);
2560 sess->discovery_auth_optional =
2561 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options);
2562 if (test_bit(ISCSIOPT_ERL1, &options))
2563 sess->erl |= BIT_1;
2564 if (test_bit(ISCSIOPT_ERL0, &options))
2565 sess->erl |= BIT_0;
2566
2567 options = le16_to_cpu(fw_ddb_entry->tcp_options);
2568 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options);
2569 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options);
2570 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options);
2571 if (test_bit(TCPOPT_TIMER_SCALE3, &options))
2572 conn->tcp_timer_scale |= BIT_3;
2573 if (test_bit(TCPOPT_TIMER_SCALE2, &options))
2574 conn->tcp_timer_scale |= BIT_2;
2575 if (test_bit(TCPOPT_TIMER_SCALE1, &options))
2576 conn->tcp_timer_scale |= BIT_1;
2577
2578 conn->tcp_timer_scale >>= 1;
2579 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options);
2580
2581 options = le16_to_cpu(fw_ddb_entry->ip_options);
2582 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options);
2583
2584 conn->max_recv_dlength = BYTE_UNITS *
2585 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len);
2586 conn->max_xmit_dlength = BYTE_UNITS *
2587 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len);
2588 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t);
2589 sess->first_burst = BYTE_UNITS *
2590 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len);
2591 sess->max_burst = BYTE_UNITS *
2592 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len);
2593 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
2594 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain);
2595 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
2596 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss);
2597 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf;
2598 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf;
2599 conn->ipv4_tos = fw_ddb_entry->ipv4_tos;
2600 conn->keepalive_tmo = le16_to_cpu(fw_ddb_entry->ka_timeout);
2601 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port);
2602 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn);
2603 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn);
2604 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid);
2605 COPY_ISID(sess->isid, fw_ddb_entry->isid);
2606
2607 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
2608 if (ddb_link == DDB_ISNS)
2609 disc_parent = ISCSI_DISC_PARENT_ISNS;
2610 else if (ddb_link == DDB_NO_LINK)
2611 disc_parent = ISCSI_DISC_PARENT_UNKNOWN;
2612 else if (ddb_link < MAX_DDB_ENTRIES)
2613 disc_parent = ISCSI_DISC_PARENT_SENDTGT;
2614 else
2615 disc_parent = ISCSI_DISC_PARENT_UNKNOWN;
2616
2617 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_DISCOVERY_PARENT_TYPE,
2618 iscsi_get_discovery_parent_name(disc_parent), 0);
2619
2620 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_TARGET_ALIAS,
2621 (char *)fw_ddb_entry->iscsi_alias, 0);
2622 }
2623
2624 static void qla4xxx_copy_fwddb_param(struct scsi_qla_host *ha,
2625 struct dev_db_entry *fw_ddb_entry,
2626 struct iscsi_cls_session *cls_sess,
2627 struct iscsi_cls_conn *cls_conn)
2628 {
2629 int buflen = 0;
2630 struct iscsi_session *sess;
2631 struct ddb_entry *ddb_entry;
2632 struct ql4_chap_table chap_tbl;
2633 struct iscsi_conn *conn;
2634 char ip_addr[DDB_IPADDR_LEN];
2635 uint16_t options = 0;
2636
2637 sess = cls_sess->dd_data;
2638 ddb_entry = sess->dd_data;
2639 conn = cls_conn->dd_data;
2640 memset(&chap_tbl, 0, sizeof(chap_tbl));
2641
2642 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
2643
2644 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry);
2645
2646 sess->def_taskmgmt_tmo = le16_to_cpu(fw_ddb_entry->def_timeout);
2647 conn->persistent_port = le16_to_cpu(fw_ddb_entry->port);
2648
2649 memset(ip_addr, 0, sizeof(ip_addr));
2650 options = le16_to_cpu(fw_ddb_entry->options);
2651 if (options & DDB_OPT_IPV6_DEVICE) {
2652 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv6", 4);
2653
2654 memset(ip_addr, 0, sizeof(ip_addr));
2655 sprintf(ip_addr, "%pI6", fw_ddb_entry->ip_addr);
2656 } else {
2657 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv4", 4);
2658 sprintf(ip_addr, "%pI4", fw_ddb_entry->ip_addr);
2659 }
2660
2661 iscsi_set_param(cls_conn, ISCSI_PARAM_PERSISTENT_ADDRESS,
2662 (char *)ip_addr, buflen);
2663 iscsi_set_param(cls_conn, ISCSI_PARAM_TARGET_NAME,
2664 (char *)fw_ddb_entry->iscsi_name, buflen);
2665 iscsi_set_param(cls_conn, ISCSI_PARAM_INITIATOR_NAME,
2666 (char *)ha->name_string, buflen);
2667
2668 if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) {
2669 if (!qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name,
2670 chap_tbl.secret,
2671 ddb_entry->chap_tbl_idx)) {
2672 iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME,
2673 (char *)chap_tbl.name,
2674 strlen((char *)chap_tbl.name));
2675 iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD,
2676 (char *)chap_tbl.secret,
2677 chap_tbl.secret_len);
2678 }
2679 }
2680 }
2681
2682 void qla4xxx_update_session_conn_fwddb_param(struct scsi_qla_host *ha,
2683 struct ddb_entry *ddb_entry)
2684 {
2685 struct iscsi_cls_session *cls_sess;
2686 struct iscsi_cls_conn *cls_conn;
2687 uint32_t ddb_state;
2688 dma_addr_t fw_ddb_entry_dma;
2689 struct dev_db_entry *fw_ddb_entry;
2690
2691 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
2692 &fw_ddb_entry_dma, GFP_KERNEL);
2693 if (!fw_ddb_entry) {
2694 ql4_printk(KERN_ERR, ha,
2695 "%s: Unable to allocate dma buffer\n", __func__);
2696 goto exit_session_conn_fwddb_param;
2697 }
2698
2699 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry,
2700 fw_ddb_entry_dma, NULL, NULL, &ddb_state,
2701 NULL, NULL, NULL) == QLA_ERROR) {
2702 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
2703 "get_ddb_entry for fw_ddb_index %d\n",
2704 ha->host_no, __func__,
2705 ddb_entry->fw_ddb_index));
2706 goto exit_session_conn_fwddb_param;
2707 }
2708
2709 cls_sess = ddb_entry->sess;
2710
2711 cls_conn = ddb_entry->conn;
2712
2713 /* Update params */
2714 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn);
2715
2716 exit_session_conn_fwddb_param:
2717 if (fw_ddb_entry)
2718 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
2719 fw_ddb_entry, fw_ddb_entry_dma);
2720 }
2721
2722 void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha,
2723 struct ddb_entry *ddb_entry)
2724 {
2725 struct iscsi_cls_session *cls_sess;
2726 struct iscsi_cls_conn *cls_conn;
2727 struct iscsi_session *sess;
2728 struct iscsi_conn *conn;
2729 uint32_t ddb_state;
2730 dma_addr_t fw_ddb_entry_dma;
2731 struct dev_db_entry *fw_ddb_entry;
2732
2733 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
2734 &fw_ddb_entry_dma, GFP_KERNEL);
2735 if (!fw_ddb_entry) {
2736 ql4_printk(KERN_ERR, ha,
2737 "%s: Unable to allocate dma buffer\n", __func__);
2738 goto exit_session_conn_param;
2739 }
2740
2741 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry,
2742 fw_ddb_entry_dma, NULL, NULL, &ddb_state,
2743 NULL, NULL, NULL) == QLA_ERROR) {
2744 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
2745 "get_ddb_entry for fw_ddb_index %d\n",
2746 ha->host_no, __func__,
2747 ddb_entry->fw_ddb_index));
2748 goto exit_session_conn_param;
2749 }
2750
2751 cls_sess = ddb_entry->sess;
2752 sess = cls_sess->dd_data;
2753
2754 cls_conn = ddb_entry->conn;
2755 conn = cls_conn->dd_data;
2756
2757 /* Update timers after login */
2758 ddb_entry->default_relogin_timeout =
2759 (le16_to_cpu(fw_ddb_entry->def_timeout) > LOGIN_TOV) &&
2760 (le16_to_cpu(fw_ddb_entry->def_timeout) < LOGIN_TOV * 10) ?
2761 le16_to_cpu(fw_ddb_entry->def_timeout) : LOGIN_TOV;
2762 ddb_entry->default_time2wait =
2763 le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
2764
2765 /* Update params */
2766 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
2767 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry);
2768
2769 memcpy(sess->initiatorname, ha->name_string,
2770 min(sizeof(ha->name_string), sizeof(sess->initiatorname)));
2771
2772 exit_session_conn_param:
2773 if (fw_ddb_entry)
2774 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
2775 fw_ddb_entry, fw_ddb_entry_dma);
2776 }
2777
2778 /*
2779 * Timer routines
2780 */
2781
2782 static void qla4xxx_start_timer(struct scsi_qla_host *ha, void *func,
2783 unsigned long interval)
2784 {
2785 DEBUG(printk("scsi: %s: Starting timer thread for adapter %d\n",
2786 __func__, ha->host->host_no));
2787 init_timer(&ha->timer);
2788 ha->timer.expires = jiffies + interval * HZ;
2789 ha->timer.data = (unsigned long)ha;
2790 ha->timer.function = (void (*)(unsigned long))func;
2791 add_timer(&ha->timer);
2792 ha->timer_active = 1;
2793 }
2794
2795 static void qla4xxx_stop_timer(struct scsi_qla_host *ha)
2796 {
2797 del_timer_sync(&ha->timer);
2798 ha->timer_active = 0;
2799 }
2800
2801 /***
2802 * qla4xxx_mark_device_missing - blocks the session
2803 * @cls_session: Pointer to the session to be blocked
2804 * @ddb_entry: Pointer to device database entry
2805 *
2806 * This routine marks a device missing and close connection.
2807 **/
2808 void qla4xxx_mark_device_missing(struct iscsi_cls_session *cls_session)
2809 {
2810 iscsi_block_session(cls_session);
2811 }
2812
2813 /**
2814 * qla4xxx_mark_all_devices_missing - mark all devices as missing.
2815 * @ha: Pointer to host adapter structure.
2816 *
2817 * This routine marks a device missing and resets the relogin retry count.
2818 **/
2819 void qla4xxx_mark_all_devices_missing(struct scsi_qla_host *ha)
2820 {
2821 iscsi_host_for_each_session(ha->host, qla4xxx_mark_device_missing);
2822 }
2823
2824 static struct srb* qla4xxx_get_new_srb(struct scsi_qla_host *ha,
2825 struct ddb_entry *ddb_entry,
2826 struct scsi_cmnd *cmd)
2827 {
2828 struct srb *srb;
2829
2830 srb = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
2831 if (!srb)
2832 return srb;
2833
2834 kref_init(&srb->srb_ref);
2835 srb->ha = ha;
2836 srb->ddb = ddb_entry;
2837 srb->cmd = cmd;
2838 srb->flags = 0;
2839 CMD_SP(cmd) = (void *)srb;
2840
2841 return srb;
2842 }
2843
2844 static void qla4xxx_srb_free_dma(struct scsi_qla_host *ha, struct srb *srb)
2845 {
2846 struct scsi_cmnd *cmd = srb->cmd;
2847
2848 if (srb->flags & SRB_DMA_VALID) {
2849 scsi_dma_unmap(cmd);
2850 srb->flags &= ~SRB_DMA_VALID;
2851 }
2852 CMD_SP(cmd) = NULL;
2853 }
2854
2855 void qla4xxx_srb_compl(struct kref *ref)
2856 {
2857 struct srb *srb = container_of(ref, struct srb, srb_ref);
2858 struct scsi_cmnd *cmd = srb->cmd;
2859 struct scsi_qla_host *ha = srb->ha;
2860
2861 qla4xxx_srb_free_dma(ha, srb);
2862
2863 mempool_free(srb, ha->srb_mempool);
2864
2865 cmd->scsi_done(cmd);
2866 }
2867
2868 /**
2869 * qla4xxx_queuecommand - scsi layer issues scsi command to driver.
2870 * @host: scsi host
2871 * @cmd: Pointer to Linux's SCSI command structure
2872 *
2873 * Remarks:
2874 * This routine is invoked by Linux to send a SCSI command to the driver.
2875 * The mid-level driver tries to ensure that queuecommand never gets
2876 * invoked concurrently with itself or the interrupt handler (although
2877 * the interrupt handler may call this routine as part of request-
2878 * completion handling). Unfortunely, it sometimes calls the scheduler
2879 * in interrupt context which is a big NO! NO!.
2880 **/
2881 static int qla4xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
2882 {
2883 struct scsi_qla_host *ha = to_qla_host(host);
2884 struct ddb_entry *ddb_entry = cmd->device->hostdata;
2885 struct iscsi_cls_session *sess = ddb_entry->sess;
2886 struct srb *srb;
2887 int rval;
2888
2889 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
2890 if (test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags))
2891 cmd->result = DID_NO_CONNECT << 16;
2892 else
2893 cmd->result = DID_REQUEUE << 16;
2894 goto qc_fail_command;
2895 }
2896
2897 if (!sess) {
2898 cmd->result = DID_IMM_RETRY << 16;
2899 goto qc_fail_command;
2900 }
2901
2902 rval = iscsi_session_chkready(sess);
2903 if (rval) {
2904 cmd->result = rval;
2905 goto qc_fail_command;
2906 }
2907
2908 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
2909 test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) ||
2910 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
2911 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) ||
2912 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) ||
2913 !test_bit(AF_ONLINE, &ha->flags) ||
2914 !test_bit(AF_LINK_UP, &ha->flags) ||
2915 test_bit(AF_LOOPBACK, &ha->flags) ||
2916 test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags) ||
2917 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags) ||
2918 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))
2919 goto qc_host_busy;
2920
2921 srb = qla4xxx_get_new_srb(ha, ddb_entry, cmd);
2922 if (!srb)
2923 goto qc_host_busy;
2924
2925 rval = qla4xxx_send_command_to_isp(ha, srb);
2926 if (rval != QLA_SUCCESS)
2927 goto qc_host_busy_free_sp;
2928
2929 return 0;
2930
2931 qc_host_busy_free_sp:
2932 qla4xxx_srb_free_dma(ha, srb);
2933 mempool_free(srb, ha->srb_mempool);
2934
2935 qc_host_busy:
2936 return SCSI_MLQUEUE_HOST_BUSY;
2937
2938 qc_fail_command:
2939 cmd->scsi_done(cmd);
2940
2941 return 0;
2942 }
2943
2944 /**
2945 * qla4xxx_mem_free - frees memory allocated to adapter
2946 * @ha: Pointer to host adapter structure.
2947 *
2948 * Frees memory previously allocated by qla4xxx_mem_alloc
2949 **/
2950 static void qla4xxx_mem_free(struct scsi_qla_host *ha)
2951 {
2952 if (ha->queues)
2953 dma_free_coherent(&ha->pdev->dev, ha->queues_len, ha->queues,
2954 ha->queues_dma);
2955
2956 if (ha->fw_dump)
2957 vfree(ha->fw_dump);
2958
2959 ha->queues_len = 0;
2960 ha->queues = NULL;
2961 ha->queues_dma = 0;
2962 ha->request_ring = NULL;
2963 ha->request_dma = 0;
2964 ha->response_ring = NULL;
2965 ha->response_dma = 0;
2966 ha->shadow_regs = NULL;
2967 ha->shadow_regs_dma = 0;
2968 ha->fw_dump = NULL;
2969 ha->fw_dump_size = 0;
2970
2971 /* Free srb pool. */
2972 if (ha->srb_mempool)
2973 mempool_destroy(ha->srb_mempool);
2974
2975 ha->srb_mempool = NULL;
2976
2977 if (ha->chap_dma_pool)
2978 dma_pool_destroy(ha->chap_dma_pool);
2979
2980 if (ha->chap_list)
2981 vfree(ha->chap_list);
2982 ha->chap_list = NULL;
2983
2984 if (ha->fw_ddb_dma_pool)
2985 dma_pool_destroy(ha->fw_ddb_dma_pool);
2986
2987 /* release io space registers */
2988 if (is_qla8022(ha)) {
2989 if (ha->nx_pcibase)
2990 iounmap(
2991 (struct device_reg_82xx __iomem *)ha->nx_pcibase);
2992 } else if (is_qla8032(ha) || is_qla8042(ha)) {
2993 if (ha->nx_pcibase)
2994 iounmap(
2995 (struct device_reg_83xx __iomem *)ha->nx_pcibase);
2996 } else if (ha->reg) {
2997 iounmap(ha->reg);
2998 }
2999
3000 if (ha->reset_tmplt.buff)
3001 vfree(ha->reset_tmplt.buff);
3002
3003 pci_release_regions(ha->pdev);
3004 }
3005
3006 /**
3007 * qla4xxx_mem_alloc - allocates memory for use by adapter.
3008 * @ha: Pointer to host adapter structure
3009 *
3010 * Allocates DMA memory for request and response queues. Also allocates memory
3011 * for srbs.
3012 **/
3013 static int qla4xxx_mem_alloc(struct scsi_qla_host *ha)
3014 {
3015 unsigned long align;
3016
3017 /* Allocate contiguous block of DMA memory for queues. */
3018 ha->queues_len = ((REQUEST_QUEUE_DEPTH * QUEUE_SIZE) +
3019 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE) +
3020 sizeof(struct shadow_regs) +
3021 MEM_ALIGN_VALUE +
3022 (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
3023 ha->queues = dma_alloc_coherent(&ha->pdev->dev, ha->queues_len,
3024 &ha->queues_dma, GFP_KERNEL);
3025 if (ha->queues == NULL) {
3026 ql4_printk(KERN_WARNING, ha,
3027 "Memory Allocation failed - queues.\n");
3028
3029 goto mem_alloc_error_exit;
3030 }
3031 memset(ha->queues, 0, ha->queues_len);
3032
3033 /*
3034 * As per RISC alignment requirements -- the bus-address must be a
3035 * multiple of the request-ring size (in bytes).
3036 */
3037 align = 0;
3038 if ((unsigned long)ha->queues_dma & (MEM_ALIGN_VALUE - 1))
3039 align = MEM_ALIGN_VALUE - ((unsigned long)ha->queues_dma &
3040 (MEM_ALIGN_VALUE - 1));
3041
3042 /* Update request and response queue pointers. */
3043 ha->request_dma = ha->queues_dma + align;
3044 ha->request_ring = (struct queue_entry *) (ha->queues + align);
3045 ha->response_dma = ha->queues_dma + align +
3046 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE);
3047 ha->response_ring = (struct queue_entry *) (ha->queues + align +
3048 (REQUEST_QUEUE_DEPTH *
3049 QUEUE_SIZE));
3050 ha->shadow_regs_dma = ha->queues_dma + align +
3051 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE) +
3052 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE);
3053 ha->shadow_regs = (struct shadow_regs *) (ha->queues + align +
3054 (REQUEST_QUEUE_DEPTH *
3055 QUEUE_SIZE) +
3056 (RESPONSE_QUEUE_DEPTH *
3057 QUEUE_SIZE));
3058
3059 /* Allocate memory for srb pool. */
3060 ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab,
3061 mempool_free_slab, srb_cachep);
3062 if (ha->srb_mempool == NULL) {
3063 ql4_printk(KERN_WARNING, ha,
3064 "Memory Allocation failed - SRB Pool.\n");
3065
3066 goto mem_alloc_error_exit;
3067 }
3068
3069 ha->chap_dma_pool = dma_pool_create("ql4_chap", &ha->pdev->dev,
3070 CHAP_DMA_BLOCK_SIZE, 8, 0);
3071
3072 if (ha->chap_dma_pool == NULL) {
3073 ql4_printk(KERN_WARNING, ha,
3074 "%s: chap_dma_pool allocation failed..\n", __func__);
3075 goto mem_alloc_error_exit;
3076 }
3077
3078 ha->fw_ddb_dma_pool = dma_pool_create("ql4_fw_ddb", &ha->pdev->dev,
3079 DDB_DMA_BLOCK_SIZE, 8, 0);
3080
3081 if (ha->fw_ddb_dma_pool == NULL) {
3082 ql4_printk(KERN_WARNING, ha,
3083 "%s: fw_ddb_dma_pool allocation failed..\n",
3084 __func__);
3085 goto mem_alloc_error_exit;
3086 }
3087
3088 return QLA_SUCCESS;
3089
3090 mem_alloc_error_exit:
3091 qla4xxx_mem_free(ha);
3092 return QLA_ERROR;
3093 }
3094
3095 /**
3096 * qla4_8xxx_check_temp - Check the ISP82XX temperature.
3097 * @ha: adapter block pointer.
3098 *
3099 * Note: The caller should not hold the idc lock.
3100 **/
3101 static int qla4_8xxx_check_temp(struct scsi_qla_host *ha)
3102 {
3103 uint32_t temp, temp_state, temp_val;
3104 int status = QLA_SUCCESS;
3105
3106 temp = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_TEMP_STATE);
3107
3108 temp_state = qla82xx_get_temp_state(temp);
3109 temp_val = qla82xx_get_temp_val(temp);
3110
3111 if (temp_state == QLA82XX_TEMP_PANIC) {
3112 ql4_printk(KERN_WARNING, ha, "Device temperature %d degrees C"
3113 " exceeds maximum allowed. Hardware has been shut"
3114 " down.\n", temp_val);
3115 status = QLA_ERROR;
3116 } else if (temp_state == QLA82XX_TEMP_WARN) {
3117 if (ha->temperature == QLA82XX_TEMP_NORMAL)
3118 ql4_printk(KERN_WARNING, ha, "Device temperature %d"
3119 " degrees C exceeds operating range."
3120 " Immediate action needed.\n", temp_val);
3121 } else {
3122 if (ha->temperature == QLA82XX_TEMP_WARN)
3123 ql4_printk(KERN_INFO, ha, "Device temperature is"
3124 " now %d degrees C in normal range.\n",
3125 temp_val);
3126 }
3127 ha->temperature = temp_state;
3128 return status;
3129 }
3130
3131 /**
3132 * qla4_8xxx_check_fw_alive - Check firmware health
3133 * @ha: Pointer to host adapter structure.
3134 *
3135 * Context: Interrupt
3136 **/
3137 static int qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha)
3138 {
3139 uint32_t fw_heartbeat_counter;
3140 int status = QLA_SUCCESS;
3141
3142 fw_heartbeat_counter = qla4_8xxx_rd_direct(ha,
3143 QLA8XXX_PEG_ALIVE_COUNTER);
3144 /* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */
3145 if (fw_heartbeat_counter == 0xffffffff) {
3146 DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Device in frozen "
3147 "state, QLA82XX_PEG_ALIVE_COUNTER is 0xffffffff\n",
3148 ha->host_no, __func__));
3149 return status;
3150 }
3151
3152 if (ha->fw_heartbeat_counter == fw_heartbeat_counter) {
3153 ha->seconds_since_last_heartbeat++;
3154 /* FW not alive after 2 seconds */
3155 if (ha->seconds_since_last_heartbeat == 2) {
3156 ha->seconds_since_last_heartbeat = 0;
3157 qla4_8xxx_dump_peg_reg(ha);
3158 status = QLA_ERROR;
3159 }
3160 } else
3161 ha->seconds_since_last_heartbeat = 0;
3162
3163 ha->fw_heartbeat_counter = fw_heartbeat_counter;
3164 return status;
3165 }
3166
3167 static void qla4_8xxx_process_fw_error(struct scsi_qla_host *ha)
3168 {
3169 uint32_t halt_status;
3170 int halt_status_unrecoverable = 0;
3171
3172 halt_status = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_HALT_STATUS1);
3173
3174 if (is_qla8022(ha)) {
3175 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
3176 __func__);
3177 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
3178 CRB_NIU_XG_PAUSE_CTL_P0 |
3179 CRB_NIU_XG_PAUSE_CTL_P1);
3180
3181 if (QLA82XX_FWERROR_CODE(halt_status) == 0x67)
3182 ql4_printk(KERN_ERR, ha, "%s: Firmware aborted with error code 0x00006700. Device is being reset\n",
3183 __func__);
3184 if (halt_status & HALT_STATUS_UNRECOVERABLE)
3185 halt_status_unrecoverable = 1;
3186 } else if (is_qla8032(ha) || is_qla8042(ha)) {
3187 if (halt_status & QLA83XX_HALT_STATUS_FW_RESET)
3188 ql4_printk(KERN_ERR, ha, "%s: Firmware error detected device is being reset\n",
3189 __func__);
3190 else if (halt_status & QLA83XX_HALT_STATUS_UNRECOVERABLE)
3191 halt_status_unrecoverable = 1;
3192 }
3193
3194 /*
3195 * Since we cannot change dev_state in interrupt context,
3196 * set appropriate DPC flag then wakeup DPC
3197 */
3198 if (halt_status_unrecoverable) {
3199 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags);
3200 } else {
3201 ql4_printk(KERN_INFO, ha, "%s: detect abort needed!\n",
3202 __func__);
3203 set_bit(DPC_RESET_HA, &ha->dpc_flags);
3204 }
3205 qla4xxx_mailbox_premature_completion(ha);
3206 qla4xxx_wake_dpc(ha);
3207 }
3208
3209 /**
3210 * qla4_8xxx_watchdog - Poll dev state
3211 * @ha: Pointer to host adapter structure.
3212 *
3213 * Context: Interrupt
3214 **/
3215 void qla4_8xxx_watchdog(struct scsi_qla_host *ha)
3216 {
3217 uint32_t dev_state;
3218 uint32_t idc_ctrl;
3219
3220 /* don't poll if reset is going on */
3221 if (!(test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) ||
3222 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
3223 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags))) {
3224 dev_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE);
3225
3226 if (qla4_8xxx_check_temp(ha)) {
3227 if (is_qla8022(ha)) {
3228 ql4_printk(KERN_INFO, ha, "disabling pause transmit on port 0 & 1.\n");
3229 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
3230 CRB_NIU_XG_PAUSE_CTL_P0 |
3231 CRB_NIU_XG_PAUSE_CTL_P1);
3232 }
3233 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags);
3234 qla4xxx_wake_dpc(ha);
3235 } else if (dev_state == QLA8XXX_DEV_NEED_RESET &&
3236 !test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
3237
3238 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED RESET!\n",
3239 __func__);
3240
3241 if (is_qla8032(ha) || is_qla8042(ha)) {
3242 idc_ctrl = qla4_83xx_rd_reg(ha,
3243 QLA83XX_IDC_DRV_CTRL);
3244 if (!(idc_ctrl & GRACEFUL_RESET_BIT1)) {
3245 ql4_printk(KERN_INFO, ha, "%s: Graceful reset bit is not set\n",
3246 __func__);
3247 qla4xxx_mailbox_premature_completion(
3248 ha);
3249 }
3250 }
3251
3252 if ((is_qla8032(ha) || is_qla8042(ha)) ||
3253 (is_qla8022(ha) && !ql4xdontresethba)) {
3254 set_bit(DPC_RESET_HA, &ha->dpc_flags);
3255 qla4xxx_wake_dpc(ha);
3256 }
3257 } else if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT &&
3258 !test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) {
3259 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED QUIES!\n",
3260 __func__);
3261 set_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags);
3262 qla4xxx_wake_dpc(ha);
3263 } else {
3264 /* Check firmware health */
3265 if (qla4_8xxx_check_fw_alive(ha))
3266 qla4_8xxx_process_fw_error(ha);
3267 }
3268 }
3269 }
3270
3271 static void qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)
3272 {
3273 struct iscsi_session *sess;
3274 struct ddb_entry *ddb_entry;
3275 struct scsi_qla_host *ha;
3276
3277 sess = cls_sess->dd_data;
3278 ddb_entry = sess->dd_data;
3279 ha = ddb_entry->ha;
3280
3281 if (!(ddb_entry->ddb_type == FLASH_DDB))
3282 return;
3283
3284 if (adapter_up(ha) && !test_bit(DF_RELOGIN, &ddb_entry->flags) &&
3285 !iscsi_is_session_online(cls_sess)) {
3286 if (atomic_read(&ddb_entry->retry_relogin_timer) !=
3287 INVALID_ENTRY) {
3288 if (atomic_read(&ddb_entry->retry_relogin_timer) ==
3289 0) {
3290 atomic_set(&ddb_entry->retry_relogin_timer,
3291 INVALID_ENTRY);
3292 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
3293 set_bit(DF_RELOGIN, &ddb_entry->flags);
3294 DEBUG2(ql4_printk(KERN_INFO, ha,
3295 "%s: index [%d] login device\n",
3296 __func__, ddb_entry->fw_ddb_index));
3297 } else
3298 atomic_dec(&ddb_entry->retry_relogin_timer);
3299 }
3300 }
3301
3302 /* Wait for relogin to timeout */
3303 if (atomic_read(&ddb_entry->relogin_timer) &&
3304 (atomic_dec_and_test(&ddb_entry->relogin_timer) != 0)) {
3305 /*
3306 * If the relogin times out and the device is
3307 * still NOT ONLINE then try and relogin again.
3308 */
3309 if (!iscsi_is_session_online(cls_sess)) {
3310 /* Reset retry relogin timer */
3311 atomic_inc(&ddb_entry->relogin_retry_count);
3312 DEBUG2(ql4_printk(KERN_INFO, ha,
3313 "%s: index[%d] relogin timed out-retrying"
3314 " relogin (%d), retry (%d)\n", __func__,
3315 ddb_entry->fw_ddb_index,
3316 atomic_read(&ddb_entry->relogin_retry_count),
3317 ddb_entry->default_time2wait + 4));
3318 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
3319 atomic_set(&ddb_entry->retry_relogin_timer,
3320 ddb_entry->default_time2wait + 4);
3321 }
3322 }
3323 }
3324
3325 /**
3326 * qla4xxx_timer - checks every second for work to do.
3327 * @ha: Pointer to host adapter structure.
3328 **/
3329 static void qla4xxx_timer(struct scsi_qla_host *ha)
3330 {
3331 int start_dpc = 0;
3332 uint16_t w;
3333
3334 iscsi_host_for_each_session(ha->host, qla4xxx_check_relogin_flash_ddb);
3335
3336 /* If we are in the middle of AER/EEH processing
3337 * skip any processing and reschedule the timer
3338 */
3339 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
3340 mod_timer(&ha->timer, jiffies + HZ);
3341 return;
3342 }
3343
3344 /* Hardware read to trigger an EEH error during mailbox waits. */
3345 if (!pci_channel_offline(ha->pdev))
3346 pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
3347
3348 if (is_qla80XX(ha))
3349 qla4_8xxx_watchdog(ha);
3350
3351 if (is_qla40XX(ha)) {
3352 /* Check for heartbeat interval. */
3353 if (ha->firmware_options & FWOPT_HEARTBEAT_ENABLE &&
3354 ha->heartbeat_interval != 0) {
3355 ha->seconds_since_last_heartbeat++;
3356 if (ha->seconds_since_last_heartbeat >
3357 ha->heartbeat_interval + 2)
3358 set_bit(DPC_RESET_HA, &ha->dpc_flags);
3359 }
3360 }
3361
3362 /* Process any deferred work. */
3363 if (!list_empty(&ha->work_list))
3364 start_dpc++;
3365
3366 /* Wakeup the dpc routine for this adapter, if needed. */
3367 if (start_dpc ||
3368 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
3369 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags) ||
3370 test_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags) ||
3371 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) ||
3372 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
3373 test_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags) ||
3374 test_bit(DPC_LINK_CHANGED, &ha->dpc_flags) ||
3375 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) ||
3376 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) ||
3377 test_bit(DPC_AEN, &ha->dpc_flags)) {
3378 DEBUG2(printk("scsi%ld: %s: scheduling dpc routine"
3379 " - dpc flags = 0x%lx\n",
3380 ha->host_no, __func__, ha->dpc_flags));
3381 qla4xxx_wake_dpc(ha);
3382 }
3383
3384 /* Reschedule timer thread to call us back in one second */
3385 mod_timer(&ha->timer, jiffies + HZ);
3386
3387 DEBUG2(ha->seconds_since_last_intr++);
3388 }
3389
3390 /**
3391 * qla4xxx_cmd_wait - waits for all outstanding commands to complete
3392 * @ha: Pointer to host adapter structure.
3393 *
3394 * This routine stalls the driver until all outstanding commands are returned.
3395 * Caller must release the Hardware Lock prior to calling this routine.
3396 **/
3397 static int qla4xxx_cmd_wait(struct scsi_qla_host *ha)
3398 {
3399 uint32_t index = 0;
3400 unsigned long flags;
3401 struct scsi_cmnd *cmd;
3402
3403 unsigned long wtime = jiffies + (WAIT_CMD_TOV * HZ);
3404
3405 DEBUG2(ql4_printk(KERN_INFO, ha, "Wait up to %d seconds for cmds to "
3406 "complete\n", WAIT_CMD_TOV));
3407
3408 while (!time_after_eq(jiffies, wtime)) {
3409 spin_lock_irqsave(&ha->hardware_lock, flags);
3410 /* Find a command that hasn't completed. */
3411 for (index = 0; index < ha->host->can_queue; index++) {
3412 cmd = scsi_host_find_tag(ha->host, index);
3413 /*
3414 * We cannot just check if the index is valid,
3415 * becase if we are run from the scsi eh, then
3416 * the scsi/block layer is going to prevent
3417 * the tag from being released.
3418 */
3419 if (cmd != NULL && CMD_SP(cmd))
3420 break;
3421 }
3422 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3423
3424 /* If No Commands are pending, wait is complete */
3425 if (index == ha->host->can_queue)
3426 return QLA_SUCCESS;
3427
3428 msleep(1000);
3429 }
3430 /* If we timed out on waiting for commands to come back
3431 * return ERROR. */
3432 return QLA_ERROR;
3433 }
3434
3435 int qla4xxx_hw_reset(struct scsi_qla_host *ha)
3436 {
3437 uint32_t ctrl_status;
3438 unsigned long flags = 0;
3439
3440 DEBUG2(printk(KERN_ERR "scsi%ld: %s\n", ha->host_no, __func__));
3441
3442 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS)
3443 return QLA_ERROR;
3444
3445 spin_lock_irqsave(&ha->hardware_lock, flags);
3446
3447 /*
3448 * If the SCSI Reset Interrupt bit is set, clear it.
3449 * Otherwise, the Soft Reset won't work.
3450 */
3451 ctrl_status = readw(&ha->reg->ctrl_status);
3452 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0)
3453 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status);
3454
3455 /* Issue Soft Reset */
3456 writel(set_rmask(CSR_SOFT_RESET), &ha->reg->ctrl_status);
3457 readl(&ha->reg->ctrl_status);
3458
3459 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3460 return QLA_SUCCESS;
3461 }
3462
3463 /**
3464 * qla4xxx_soft_reset - performs soft reset.
3465 * @ha: Pointer to host adapter structure.
3466 **/
3467 int qla4xxx_soft_reset(struct scsi_qla_host *ha)
3468 {
3469 uint32_t max_wait_time;
3470 unsigned long flags = 0;
3471 int status;
3472 uint32_t ctrl_status;
3473
3474 status = qla4xxx_hw_reset(ha);
3475 if (status != QLA_SUCCESS)
3476 return status;
3477
3478 status = QLA_ERROR;
3479 /* Wait until the Network Reset Intr bit is cleared */
3480 max_wait_time = RESET_INTR_TOV;
3481 do {
3482 spin_lock_irqsave(&ha->hardware_lock, flags);
3483 ctrl_status = readw(&ha->reg->ctrl_status);
3484 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3485
3486 if ((ctrl_status & CSR_NET_RESET_INTR) == 0)
3487 break;
3488
3489 msleep(1000);
3490 } while ((--max_wait_time));
3491
3492 if ((ctrl_status & CSR_NET_RESET_INTR) != 0) {
3493 DEBUG2(printk(KERN_WARNING
3494 "scsi%ld: Network Reset Intr not cleared by "
3495 "Network function, clearing it now!\n",
3496 ha->host_no));
3497 spin_lock_irqsave(&ha->hardware_lock, flags);
3498 writel(set_rmask(CSR_NET_RESET_INTR), &ha->reg->ctrl_status);
3499 readl(&ha->reg->ctrl_status);
3500 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3501 }
3502
3503 /* Wait until the firmware tells us the Soft Reset is done */
3504 max_wait_time = SOFT_RESET_TOV;
3505 do {
3506 spin_lock_irqsave(&ha->hardware_lock, flags);
3507 ctrl_status = readw(&ha->reg->ctrl_status);
3508 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3509
3510 if ((ctrl_status & CSR_SOFT_RESET) == 0) {
3511 status = QLA_SUCCESS;
3512 break;
3513 }
3514
3515 msleep(1000);
3516 } while ((--max_wait_time));
3517
3518 /*
3519 * Also, make sure that the SCSI Reset Interrupt bit has been cleared
3520 * after the soft reset has taken place.
3521 */
3522 spin_lock_irqsave(&ha->hardware_lock, flags);
3523 ctrl_status = readw(&ha->reg->ctrl_status);
3524 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) {
3525 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status);
3526 readl(&ha->reg->ctrl_status);
3527 }
3528 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3529
3530 /* If soft reset fails then most probably the bios on other
3531 * function is also enabled.
3532 * Since the initialization is sequential the other fn
3533 * wont be able to acknowledge the soft reset.
3534 * Issue a force soft reset to workaround this scenario.
3535 */
3536 if (max_wait_time == 0) {
3537 /* Issue Force Soft Reset */
3538 spin_lock_irqsave(&ha->hardware_lock, flags);
3539 writel(set_rmask(CSR_FORCE_SOFT_RESET), &ha->reg->ctrl_status);
3540 readl(&ha->reg->ctrl_status);
3541 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3542 /* Wait until the firmware tells us the Soft Reset is done */
3543 max_wait_time = SOFT_RESET_TOV;
3544 do {
3545 spin_lock_irqsave(&ha->hardware_lock, flags);
3546 ctrl_status = readw(&ha->reg->ctrl_status);
3547 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3548
3549 if ((ctrl_status & CSR_FORCE_SOFT_RESET) == 0) {
3550 status = QLA_SUCCESS;
3551 break;
3552 }
3553
3554 msleep(1000);
3555 } while ((--max_wait_time));
3556 }
3557
3558 return status;
3559 }
3560
3561 /**
3562 * qla4xxx_abort_active_cmds - returns all outstanding i/o requests to O.S.
3563 * @ha: Pointer to host adapter structure.
3564 * @res: returned scsi status
3565 *
3566 * This routine is called just prior to a HARD RESET to return all
3567 * outstanding commands back to the Operating System.
3568 * Caller should make sure that the following locks are released
3569 * before this calling routine: Hardware lock, and io_request_lock.
3570 **/
3571 static void qla4xxx_abort_active_cmds(struct scsi_qla_host *ha, int res)
3572 {
3573 struct srb *srb;
3574 int i;
3575 unsigned long flags;
3576
3577 spin_lock_irqsave(&ha->hardware_lock, flags);
3578 for (i = 0; i < ha->host->can_queue; i++) {
3579 srb = qla4xxx_del_from_active_array(ha, i);
3580 if (srb != NULL) {
3581 srb->cmd->result = res;
3582 kref_put(&srb->srb_ref, qla4xxx_srb_compl);
3583 }
3584 }
3585 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3586 }
3587
3588 void qla4xxx_dead_adapter_cleanup(struct scsi_qla_host *ha)
3589 {
3590 clear_bit(AF_ONLINE, &ha->flags);
3591
3592 /* Disable the board */
3593 ql4_printk(KERN_INFO, ha, "Disabling the board\n");
3594
3595 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
3596 qla4xxx_mark_all_devices_missing(ha);
3597 clear_bit(AF_INIT_DONE, &ha->flags);
3598 }
3599
3600 static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session)
3601 {
3602 struct iscsi_session *sess;
3603 struct ddb_entry *ddb_entry;
3604
3605 sess = cls_session->dd_data;
3606 ddb_entry = sess->dd_data;
3607 ddb_entry->fw_ddb_device_state = DDB_DS_SESSION_FAILED;
3608
3609 if (ddb_entry->ddb_type == FLASH_DDB)
3610 iscsi_block_session(ddb_entry->sess);
3611 else
3612 iscsi_session_failure(cls_session->dd_data,
3613 ISCSI_ERR_CONN_FAILED);
3614 }
3615
3616 /**
3617 * qla4xxx_recover_adapter - recovers adapter after a fatal error
3618 * @ha: Pointer to host adapter structure.
3619 **/
3620 static int qla4xxx_recover_adapter(struct scsi_qla_host *ha)
3621 {
3622 int status = QLA_ERROR;
3623 uint8_t reset_chip = 0;
3624 uint32_t dev_state;
3625 unsigned long wait;
3626
3627 /* Stall incoming I/O until we are done */
3628 scsi_block_requests(ha->host);
3629 clear_bit(AF_ONLINE, &ha->flags);
3630 clear_bit(AF_LINK_UP, &ha->flags);
3631
3632 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: adapter OFFLINE\n", __func__));
3633
3634 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
3635
3636 if ((is_qla8032(ha) || is_qla8042(ha)) &&
3637 !test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) {
3638 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
3639 __func__);
3640 /* disable pause frame for ISP83xx */
3641 qla4_83xx_disable_pause(ha);
3642 }
3643
3644 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session);
3645
3646 if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
3647 reset_chip = 1;
3648
3649 /* For the DPC_RESET_HA_INTR case (ISP-4xxx specific)
3650 * do not reset adapter, jump to initialize_adapter */
3651 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
3652 status = QLA_SUCCESS;
3653 goto recover_ha_init_adapter;
3654 }
3655
3656 /* For the ISP-8xxx adapter, issue a stop_firmware if invoked
3657 * from eh_host_reset or ioctl module */
3658 if (is_qla80XX(ha) && !reset_chip &&
3659 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) {
3660
3661 DEBUG2(ql4_printk(KERN_INFO, ha,
3662 "scsi%ld: %s - Performing stop_firmware...\n",
3663 ha->host_no, __func__));
3664 status = ha->isp_ops->reset_firmware(ha);
3665 if (status == QLA_SUCCESS) {
3666 if (!test_bit(AF_FW_RECOVERY, &ha->flags))
3667 qla4xxx_cmd_wait(ha);
3668
3669 ha->isp_ops->disable_intrs(ha);
3670 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
3671 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
3672 } else {
3673 /* If the stop_firmware fails then
3674 * reset the entire chip */
3675 reset_chip = 1;
3676 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
3677 set_bit(DPC_RESET_HA, &ha->dpc_flags);
3678 }
3679 }
3680
3681 /* Issue full chip reset if recovering from a catastrophic error,
3682 * or if stop_firmware fails for ISP-8xxx.
3683 * This is the default case for ISP-4xxx */
3684 if (is_qla40XX(ha) || reset_chip) {
3685 if (is_qla40XX(ha))
3686 goto chip_reset;
3687
3688 /* Check if 8XXX firmware is alive or not
3689 * We may have arrived here from NEED_RESET
3690 * detection only */
3691 if (test_bit(AF_FW_RECOVERY, &ha->flags))
3692 goto chip_reset;
3693
3694 wait = jiffies + (FW_ALIVE_WAIT_TOV * HZ);
3695 while (time_before(jiffies, wait)) {
3696 if (qla4_8xxx_check_fw_alive(ha)) {
3697 qla4xxx_mailbox_premature_completion(ha);
3698 break;
3699 }
3700
3701 set_current_state(TASK_UNINTERRUPTIBLE);
3702 schedule_timeout(HZ);
3703 }
3704 chip_reset:
3705 if (!test_bit(AF_FW_RECOVERY, &ha->flags))
3706 qla4xxx_cmd_wait(ha);
3707
3708 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
3709 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
3710 DEBUG2(ql4_printk(KERN_INFO, ha,
3711 "scsi%ld: %s - Performing chip reset..\n",
3712 ha->host_no, __func__));
3713 status = ha->isp_ops->reset_chip(ha);
3714 }
3715
3716 /* Flush any pending ddb changed AENs */
3717 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
3718
3719 recover_ha_init_adapter:
3720 /* Upon successful firmware/chip reset, re-initialize the adapter */
3721 if (status == QLA_SUCCESS) {
3722 /* For ISP-4xxx, force function 1 to always initialize
3723 * before function 3 to prevent both funcions from
3724 * stepping on top of the other */
3725 if (is_qla40XX(ha) && (ha->mac_index == 3))
3726 ssleep(6);
3727
3728 /* NOTE: AF_ONLINE flag set upon successful completion of
3729 * qla4xxx_initialize_adapter */
3730 status = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
3731 }
3732
3733 /* Retry failed adapter initialization, if necessary
3734 * Do not retry initialize_adapter for RESET_HA_INTR (ISP-4xxx specific)
3735 * case to prevent ping-pong resets between functions */
3736 if (!test_bit(AF_ONLINE, &ha->flags) &&
3737 !test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
3738 /* Adapter initialization failed, see if we can retry
3739 * resetting the ha.
3740 * Since we don't want to block the DPC for too long
3741 * with multiple resets in the same thread,
3742 * utilize DPC to retry */
3743 if (is_qla80XX(ha)) {
3744 ha->isp_ops->idc_lock(ha);
3745 dev_state = qla4_8xxx_rd_direct(ha,
3746 QLA8XXX_CRB_DEV_STATE);
3747 ha->isp_ops->idc_unlock(ha);
3748 if (dev_state == QLA8XXX_DEV_FAILED) {
3749 ql4_printk(KERN_INFO, ha, "%s: don't retry "
3750 "recover adapter. H/W is in Failed "
3751 "state\n", __func__);
3752 qla4xxx_dead_adapter_cleanup(ha);
3753 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
3754 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
3755 clear_bit(DPC_RESET_HA_FW_CONTEXT,
3756 &ha->dpc_flags);
3757 status = QLA_ERROR;
3758
3759 goto exit_recover;
3760 }
3761 }
3762
3763 if (!test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags)) {
3764 ha->retry_reset_ha_cnt = MAX_RESET_HA_RETRIES;
3765 DEBUG2(printk("scsi%ld: recover adapter - retrying "
3766 "(%d) more times\n", ha->host_no,
3767 ha->retry_reset_ha_cnt));
3768 set_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
3769 status = QLA_ERROR;
3770 } else {
3771 if (ha->retry_reset_ha_cnt > 0) {
3772 /* Schedule another Reset HA--DPC will retry */
3773 ha->retry_reset_ha_cnt--;
3774 DEBUG2(printk("scsi%ld: recover adapter - "
3775 "retry remaining %d\n",
3776 ha->host_no,
3777 ha->retry_reset_ha_cnt));
3778 status = QLA_ERROR;
3779 }
3780
3781 if (ha->retry_reset_ha_cnt == 0) {
3782 /* Recover adapter retries have been exhausted.
3783 * Adapter DEAD */
3784 DEBUG2(printk("scsi%ld: recover adapter "
3785 "failed - board disabled\n",
3786 ha->host_no));
3787 qla4xxx_dead_adapter_cleanup(ha);
3788 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
3789 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
3790 clear_bit(DPC_RESET_HA_FW_CONTEXT,
3791 &ha->dpc_flags);
3792 status = QLA_ERROR;
3793 }
3794 }
3795 } else {
3796 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
3797 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
3798 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
3799 }
3800
3801 exit_recover:
3802 ha->adapter_error_count++;
3803
3804 if (test_bit(AF_ONLINE, &ha->flags))
3805 ha->isp_ops->enable_intrs(ha);
3806
3807 scsi_unblock_requests(ha->host);
3808
3809 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
3810 DEBUG2(printk("scsi%ld: recover adapter: %s\n", ha->host_no,
3811 status == QLA_ERROR ? "FAILED" : "SUCCEEDED"));
3812
3813 return status;
3814 }
3815
3816 static void qla4xxx_relogin_devices(struct iscsi_cls_session *cls_session)
3817 {
3818 struct iscsi_session *sess;
3819 struct ddb_entry *ddb_entry;
3820 struct scsi_qla_host *ha;
3821
3822 sess = cls_session->dd_data;
3823 ddb_entry = sess->dd_data;
3824 ha = ddb_entry->ha;
3825 if (!iscsi_is_session_online(cls_session)) {
3826 if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) {
3827 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
3828 " unblock session\n", ha->host_no, __func__,
3829 ddb_entry->fw_ddb_index);
3830 iscsi_unblock_session(ddb_entry->sess);
3831 } else {
3832 /* Trigger relogin */
3833 if (ddb_entry->ddb_type == FLASH_DDB) {
3834 if (!(test_bit(DF_RELOGIN, &ddb_entry->flags) ||
3835 test_bit(DF_DISABLE_RELOGIN,
3836 &ddb_entry->flags)))
3837 qla4xxx_arm_relogin_timer(ddb_entry);
3838 } else
3839 iscsi_session_failure(cls_session->dd_data,
3840 ISCSI_ERR_CONN_FAILED);
3841 }
3842 }
3843 }
3844
3845 int qla4xxx_unblock_flash_ddb(struct iscsi_cls_session *cls_session)
3846 {
3847 struct iscsi_session *sess;
3848 struct ddb_entry *ddb_entry;
3849 struct scsi_qla_host *ha;
3850
3851 sess = cls_session->dd_data;
3852 ddb_entry = sess->dd_data;
3853 ha = ddb_entry->ha;
3854 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
3855 " unblock session\n", ha->host_no, __func__,
3856 ddb_entry->fw_ddb_index);
3857
3858 iscsi_unblock_session(ddb_entry->sess);
3859
3860 /* Start scan target */
3861 if (test_bit(AF_ONLINE, &ha->flags)) {
3862 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
3863 " start scan\n", ha->host_no, __func__,
3864 ddb_entry->fw_ddb_index);
3865 scsi_queue_work(ha->host, &ddb_entry->sess->scan_work);
3866 }
3867 return QLA_SUCCESS;
3868 }
3869
3870 int qla4xxx_unblock_ddb(struct iscsi_cls_session *cls_session)
3871 {
3872 struct iscsi_session *sess;
3873 struct ddb_entry *ddb_entry;
3874 struct scsi_qla_host *ha;
3875 int status = QLA_SUCCESS;
3876
3877 sess = cls_session->dd_data;
3878 ddb_entry = sess->dd_data;
3879 ha = ddb_entry->ha;
3880 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
3881 " unblock user space session\n", ha->host_no, __func__,
3882 ddb_entry->fw_ddb_index);
3883
3884 if (!iscsi_is_session_online(cls_session)) {
3885 iscsi_conn_start(ddb_entry->conn);
3886 iscsi_conn_login_event(ddb_entry->conn,
3887 ISCSI_CONN_STATE_LOGGED_IN);
3888 } else {
3889 ql4_printk(KERN_INFO, ha,
3890 "scsi%ld: %s: ddb[%d] session [%d] already logged in\n",
3891 ha->host_no, __func__, ddb_entry->fw_ddb_index,
3892 cls_session->sid);
3893 status = QLA_ERROR;
3894 }
3895
3896 return status;
3897 }
3898
3899 static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha)
3900 {
3901 iscsi_host_for_each_session(ha->host, qla4xxx_relogin_devices);
3902 }
3903
3904 static void qla4xxx_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)
3905 {
3906 uint16_t relogin_timer;
3907 struct iscsi_session *sess;
3908 struct ddb_entry *ddb_entry;
3909 struct scsi_qla_host *ha;
3910
3911 sess = cls_sess->dd_data;
3912 ddb_entry = sess->dd_data;
3913 ha = ddb_entry->ha;
3914
3915 relogin_timer = max(ddb_entry->default_relogin_timeout,
3916 (uint16_t)RELOGIN_TOV);
3917 atomic_set(&ddb_entry->relogin_timer, relogin_timer);
3918
3919 DEBUG2(ql4_printk(KERN_INFO, ha,
3920 "scsi%ld: Relogin index [%d]. TOV=%d\n", ha->host_no,
3921 ddb_entry->fw_ddb_index, relogin_timer));
3922
3923 qla4xxx_login_flash_ddb(cls_sess);
3924 }
3925
3926 static void qla4xxx_dpc_relogin(struct iscsi_cls_session *cls_sess)
3927 {
3928 struct iscsi_session *sess;
3929 struct ddb_entry *ddb_entry;
3930 struct scsi_qla_host *ha;
3931
3932 sess = cls_sess->dd_data;
3933 ddb_entry = sess->dd_data;
3934 ha = ddb_entry->ha;
3935
3936 if (!(ddb_entry->ddb_type == FLASH_DDB))
3937 return;
3938
3939 if (test_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags))
3940 return;
3941
3942 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags) &&
3943 !iscsi_is_session_online(cls_sess)) {
3944 DEBUG2(ql4_printk(KERN_INFO, ha,
3945 "relogin issued\n"));
3946 qla4xxx_relogin_flash_ddb(cls_sess);
3947 }
3948 }
3949
3950 void qla4xxx_wake_dpc(struct scsi_qla_host *ha)
3951 {
3952 if (ha->dpc_thread)
3953 queue_work(ha->dpc_thread, &ha->dpc_work);
3954 }
3955
3956 static struct qla4_work_evt *
3957 qla4xxx_alloc_work(struct scsi_qla_host *ha, uint32_t data_size,
3958 enum qla4_work_type type)
3959 {
3960 struct qla4_work_evt *e;
3961 uint32_t size = sizeof(struct qla4_work_evt) + data_size;
3962
3963 e = kzalloc(size, GFP_ATOMIC);
3964 if (!e)
3965 return NULL;
3966
3967 INIT_LIST_HEAD(&e->list);
3968 e->type = type;
3969 return e;
3970 }
3971
3972 static void qla4xxx_post_work(struct scsi_qla_host *ha,
3973 struct qla4_work_evt *e)
3974 {
3975 unsigned long flags;
3976
3977 spin_lock_irqsave(&ha->work_lock, flags);
3978 list_add_tail(&e->list, &ha->work_list);
3979 spin_unlock_irqrestore(&ha->work_lock, flags);
3980 qla4xxx_wake_dpc(ha);
3981 }
3982
3983 int qla4xxx_post_aen_work(struct scsi_qla_host *ha,
3984 enum iscsi_host_event_code aen_code,
3985 uint32_t data_size, uint8_t *data)
3986 {
3987 struct qla4_work_evt *e;
3988
3989 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_AEN);
3990 if (!e)
3991 return QLA_ERROR;
3992
3993 e->u.aen.code = aen_code;
3994 e->u.aen.data_size = data_size;
3995 memcpy(e->u.aen.data, data, data_size);
3996
3997 qla4xxx_post_work(ha, e);
3998
3999 return QLA_SUCCESS;
4000 }
4001
4002 int qla4xxx_post_ping_evt_work(struct scsi_qla_host *ha,
4003 uint32_t status, uint32_t pid,
4004 uint32_t data_size, uint8_t *data)
4005 {
4006 struct qla4_work_evt *e;
4007
4008 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_PING_STATUS);
4009 if (!e)
4010 return QLA_ERROR;
4011
4012 e->u.ping.status = status;
4013 e->u.ping.pid = pid;
4014 e->u.ping.data_size = data_size;
4015 memcpy(e->u.ping.data, data, data_size);
4016
4017 qla4xxx_post_work(ha, e);
4018
4019 return QLA_SUCCESS;
4020 }
4021
4022 static void qla4xxx_do_work(struct scsi_qla_host *ha)
4023 {
4024 struct qla4_work_evt *e, *tmp;
4025 unsigned long flags;
4026 LIST_HEAD(work);
4027
4028 spin_lock_irqsave(&ha->work_lock, flags);
4029 list_splice_init(&ha->work_list, &work);
4030 spin_unlock_irqrestore(&ha->work_lock, flags);
4031
4032 list_for_each_entry_safe(e, tmp, &work, list) {
4033 list_del_init(&e->list);
4034
4035 switch (e->type) {
4036 case QLA4_EVENT_AEN:
4037 iscsi_post_host_event(ha->host_no,
4038 &qla4xxx_iscsi_transport,
4039 e->u.aen.code,
4040 e->u.aen.data_size,
4041 e->u.aen.data);
4042 break;
4043 case QLA4_EVENT_PING_STATUS:
4044 iscsi_ping_comp_event(ha->host_no,
4045 &qla4xxx_iscsi_transport,
4046 e->u.ping.status,
4047 e->u.ping.pid,
4048 e->u.ping.data_size,
4049 e->u.ping.data);
4050 break;
4051 default:
4052 ql4_printk(KERN_WARNING, ha, "event type: 0x%x not "
4053 "supported", e->type);
4054 }
4055 kfree(e);
4056 }
4057 }
4058
4059 /**
4060 * qla4xxx_do_dpc - dpc routine
4061 * @data: in our case pointer to adapter structure
4062 *
4063 * This routine is a task that is schedule by the interrupt handler
4064 * to perform the background processing for interrupts. We put it
4065 * on a task queue that is consumed whenever the scheduler runs; that's
4066 * so you can do anything (i.e. put the process to sleep etc). In fact,
4067 * the mid-level tries to sleep when it reaches the driver threshold
4068 * "host->can_queue". This can cause a panic if we were in our interrupt code.
4069 **/
4070 static void qla4xxx_do_dpc(struct work_struct *work)
4071 {
4072 struct scsi_qla_host *ha =
4073 container_of(work, struct scsi_qla_host, dpc_work);
4074 int status = QLA_ERROR;
4075
4076 DEBUG2(printk("scsi%ld: %s: DPC handler waking up."
4077 "flags = 0x%08lx, dpc_flags = 0x%08lx\n",
4078 ha->host_no, __func__, ha->flags, ha->dpc_flags))
4079
4080 /* Initialization not yet finished. Don't do anything yet. */
4081 if (!test_bit(AF_INIT_DONE, &ha->flags))
4082 return;
4083
4084 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
4085 DEBUG2(printk(KERN_INFO "scsi%ld: %s: flags = %lx\n",
4086 ha->host_no, __func__, ha->flags));
4087 return;
4088 }
4089
4090 /* post events to application */
4091 qla4xxx_do_work(ha);
4092
4093 if (is_qla80XX(ha)) {
4094 if (test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags)) {
4095 if (is_qla8032(ha) || is_qla8042(ha)) {
4096 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
4097 __func__);
4098 /* disable pause frame for ISP83xx */
4099 qla4_83xx_disable_pause(ha);
4100 }
4101
4102 ha->isp_ops->idc_lock(ha);
4103 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
4104 QLA8XXX_DEV_FAILED);
4105 ha->isp_ops->idc_unlock(ha);
4106 ql4_printk(KERN_INFO, ha, "HW State: FAILED\n");
4107 qla4_8xxx_device_state_handler(ha);
4108 }
4109
4110 if (test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags)) {
4111 if (is_qla8042(ha)) {
4112 if (ha->idc_info.info2 &
4113 ENABLE_INTERNAL_LOOPBACK) {
4114 ql4_printk(KERN_INFO, ha, "%s: Disabling ACB\n",
4115 __func__);
4116 status = qla4_84xx_config_acb(ha,
4117 ACB_CONFIG_DISABLE);
4118 if (status != QLA_SUCCESS) {
4119 ql4_printk(KERN_INFO, ha, "%s: ACB config failed\n",
4120 __func__);
4121 }
4122 }
4123 }
4124 qla4_83xx_post_idc_ack(ha);
4125 clear_bit(DPC_POST_IDC_ACK, &ha->dpc_flags);
4126 }
4127
4128 if (is_qla8042(ha) &&
4129 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags)) {
4130 ql4_printk(KERN_INFO, ha, "%s: Restoring ACB\n",
4131 __func__);
4132 if (qla4_84xx_config_acb(ha, ACB_CONFIG_SET) !=
4133 QLA_SUCCESS) {
4134 ql4_printk(KERN_INFO, ha, "%s: ACB config failed ",
4135 __func__);
4136 }
4137 clear_bit(DPC_RESTORE_ACB, &ha->dpc_flags);
4138 }
4139
4140 if (test_and_clear_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) {
4141 qla4_8xxx_need_qsnt_handler(ha);
4142 }
4143 }
4144
4145 if (!test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) &&
4146 (test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
4147 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
4148 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))) {
4149 if ((is_qla8022(ha) && ql4xdontresethba) ||
4150 ((is_qla8032(ha) || is_qla8042(ha)) &&
4151 qla4_83xx_idc_dontreset(ha))) {
4152 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n",
4153 ha->host_no, __func__));
4154 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
4155 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags);
4156 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
4157 goto dpc_post_reset_ha;
4158 }
4159 if (test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) ||
4160 test_bit(DPC_RESET_HA, &ha->dpc_flags))
4161 qla4xxx_recover_adapter(ha);
4162
4163 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
4164 uint8_t wait_time = RESET_INTR_TOV;
4165
4166 while ((readw(&ha->reg->ctrl_status) &
4167 (CSR_SOFT_RESET | CSR_FORCE_SOFT_RESET)) != 0) {
4168 if (--wait_time == 0)
4169 break;
4170 msleep(1000);
4171 }
4172 if (wait_time == 0)
4173 DEBUG2(printk("scsi%ld: %s: SR|FSR "
4174 "bit not cleared-- resetting\n",
4175 ha->host_no, __func__));
4176 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
4177 if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS) {
4178 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
4179 status = qla4xxx_recover_adapter(ha);
4180 }
4181 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags);
4182 if (status == QLA_SUCCESS)
4183 ha->isp_ops->enable_intrs(ha);
4184 }
4185 }
4186
4187 dpc_post_reset_ha:
4188 /* ---- process AEN? --- */
4189 if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags))
4190 qla4xxx_process_aen(ha, PROCESS_ALL_AENS);
4191
4192 /* ---- Get DHCP IP Address? --- */
4193 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags))
4194 qla4xxx_get_dhcp_ip_address(ha);
4195
4196 /* ---- relogin device? --- */
4197 if (adapter_up(ha) &&
4198 test_and_clear_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags)) {
4199 iscsi_host_for_each_session(ha->host, qla4xxx_dpc_relogin);
4200 }
4201
4202 /* ---- link change? --- */
4203 if (!test_bit(AF_LOOPBACK, &ha->flags) &&
4204 test_and_clear_bit(DPC_LINK_CHANGED, &ha->dpc_flags)) {
4205 if (!test_bit(AF_LINK_UP, &ha->flags)) {
4206 /* ---- link down? --- */
4207 qla4xxx_mark_all_devices_missing(ha);
4208 } else {
4209 /* ---- link up? --- *
4210 * F/W will auto login to all devices ONLY ONCE after
4211 * link up during driver initialization and runtime
4212 * fatal error recovery. Therefore, the driver must
4213 * manually relogin to devices when recovering from
4214 * connection failures, logouts, expired KATO, etc. */
4215 if (test_and_clear_bit(AF_BUILD_DDB_LIST, &ha->flags)) {
4216 qla4xxx_build_ddb_list(ha, ha->is_reset);
4217 iscsi_host_for_each_session(ha->host,
4218 qla4xxx_login_flash_ddb);
4219 } else
4220 qla4xxx_relogin_all_devices(ha);
4221 }
4222 }
4223 }
4224
4225 /**
4226 * qla4xxx_free_adapter - release the adapter
4227 * @ha: pointer to adapter structure
4228 **/
4229 static void qla4xxx_free_adapter(struct scsi_qla_host *ha)
4230 {
4231 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
4232
4233 /* Turn-off interrupts on the card. */
4234 ha->isp_ops->disable_intrs(ha);
4235
4236 if (is_qla40XX(ha)) {
4237 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR),
4238 &ha->reg->ctrl_status);
4239 readl(&ha->reg->ctrl_status);
4240 } else if (is_qla8022(ha)) {
4241 writel(0, &ha->qla4_82xx_reg->host_int);
4242 readl(&ha->qla4_82xx_reg->host_int);
4243 } else if (is_qla8032(ha) || is_qla8042(ha)) {
4244 writel(0, &ha->qla4_83xx_reg->risc_intr);
4245 readl(&ha->qla4_83xx_reg->risc_intr);
4246 }
4247
4248 /* Remove timer thread, if present */
4249 if (ha->timer_active)
4250 qla4xxx_stop_timer(ha);
4251
4252 /* Kill the kernel thread for this host */
4253 if (ha->dpc_thread)
4254 destroy_workqueue(ha->dpc_thread);
4255
4256 /* Kill the kernel thread for this host */
4257 if (ha->task_wq)
4258 destroy_workqueue(ha->task_wq);
4259
4260 /* Put firmware in known state */
4261 ha->isp_ops->reset_firmware(ha);
4262
4263 if (is_qla80XX(ha)) {
4264 ha->isp_ops->idc_lock(ha);
4265 qla4_8xxx_clear_drv_active(ha);
4266 ha->isp_ops->idc_unlock(ha);
4267 }
4268
4269 /* Detach interrupts */
4270 qla4xxx_free_irqs(ha);
4271
4272 /* free extra memory */
4273 qla4xxx_mem_free(ha);
4274 }
4275
4276 int qla4_8xxx_iospace_config(struct scsi_qla_host *ha)
4277 {
4278 int status = 0;
4279 unsigned long mem_base, mem_len, db_base, db_len;
4280 struct pci_dev *pdev = ha->pdev;
4281
4282 status = pci_request_regions(pdev, DRIVER_NAME);
4283 if (status) {
4284 printk(KERN_WARNING
4285 "scsi(%ld) Failed to reserve PIO regions (%s) "
4286 "status=%d\n", ha->host_no, pci_name(pdev), status);
4287 goto iospace_error_exit;
4288 }
4289
4290 DEBUG2(printk(KERN_INFO "%s: revision-id=%d\n",
4291 __func__, pdev->revision));
4292 ha->revision_id = pdev->revision;
4293
4294 /* remap phys address */
4295 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
4296 mem_len = pci_resource_len(pdev, 0);
4297 DEBUG2(printk(KERN_INFO "%s: ioremap from %lx a size of %lx\n",
4298 __func__, mem_base, mem_len));
4299
4300 /* mapping of pcibase pointer */
4301 ha->nx_pcibase = (unsigned long)ioremap(mem_base, mem_len);
4302 if (!ha->nx_pcibase) {
4303 printk(KERN_ERR
4304 "cannot remap MMIO (%s), aborting\n", pci_name(pdev));
4305 pci_release_regions(ha->pdev);
4306 goto iospace_error_exit;
4307 }
4308
4309 /* Mapping of IO base pointer, door bell read and write pointer */
4310
4311 /* mapping of IO base pointer */
4312 if (is_qla8022(ha)) {
4313 ha->qla4_82xx_reg = (struct device_reg_82xx __iomem *)
4314 ((uint8_t *)ha->nx_pcibase + 0xbc000 +
4315 (ha->pdev->devfn << 11));
4316 ha->nx_db_wr_ptr = (ha->pdev->devfn == 4 ? QLA82XX_CAM_RAM_DB1 :
4317 QLA82XX_CAM_RAM_DB2);
4318 } else if (is_qla8032(ha) || is_qla8042(ha)) {
4319 ha->qla4_83xx_reg = (struct device_reg_83xx __iomem *)
4320 ((uint8_t *)ha->nx_pcibase);
4321 }
4322
4323 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
4324 db_len = pci_resource_len(pdev, 4);
4325
4326 return 0;
4327 iospace_error_exit:
4328 return -ENOMEM;
4329 }
4330
4331 /***
4332 * qla4xxx_iospace_config - maps registers
4333 * @ha: pointer to adapter structure
4334 *
4335 * This routines maps HBA's registers from the pci address space
4336 * into the kernel virtual address space for memory mapped i/o.
4337 **/
4338 int qla4xxx_iospace_config(struct scsi_qla_host *ha)
4339 {
4340 unsigned long pio, pio_len, pio_flags;
4341 unsigned long mmio, mmio_len, mmio_flags;
4342
4343 pio = pci_resource_start(ha->pdev, 0);
4344 pio_len = pci_resource_len(ha->pdev, 0);
4345 pio_flags = pci_resource_flags(ha->pdev, 0);
4346 if (pio_flags & IORESOURCE_IO) {
4347 if (pio_len < MIN_IOBASE_LEN) {
4348 ql4_printk(KERN_WARNING, ha,
4349 "Invalid PCI I/O region size\n");
4350 pio = 0;
4351 }
4352 } else {
4353 ql4_printk(KERN_WARNING, ha, "region #0 not a PIO resource\n");
4354 pio = 0;
4355 }
4356
4357 /* Use MMIO operations for all accesses. */
4358 mmio = pci_resource_start(ha->pdev, 1);
4359 mmio_len = pci_resource_len(ha->pdev, 1);
4360 mmio_flags = pci_resource_flags(ha->pdev, 1);
4361
4362 if (!(mmio_flags & IORESOURCE_MEM)) {
4363 ql4_printk(KERN_ERR, ha,
4364 "region #0 not an MMIO resource, aborting\n");
4365
4366 goto iospace_error_exit;
4367 }
4368
4369 if (mmio_len < MIN_IOBASE_LEN) {
4370 ql4_printk(KERN_ERR, ha,
4371 "Invalid PCI mem region size, aborting\n");
4372 goto iospace_error_exit;
4373 }
4374
4375 if (pci_request_regions(ha->pdev, DRIVER_NAME)) {
4376 ql4_printk(KERN_WARNING, ha,
4377 "Failed to reserve PIO/MMIO regions\n");
4378
4379 goto iospace_error_exit;
4380 }
4381
4382 ha->pio_address = pio;
4383 ha->pio_length = pio_len;
4384 ha->reg = ioremap(mmio, MIN_IOBASE_LEN);
4385 if (!ha->reg) {
4386 ql4_printk(KERN_ERR, ha,
4387 "cannot remap MMIO, aborting\n");
4388
4389 goto iospace_error_exit;
4390 }
4391
4392 return 0;
4393
4394 iospace_error_exit:
4395 return -ENOMEM;
4396 }
4397
4398 static struct isp_operations qla4xxx_isp_ops = {
4399 .iospace_config = qla4xxx_iospace_config,
4400 .pci_config = qla4xxx_pci_config,
4401 .disable_intrs = qla4xxx_disable_intrs,
4402 .enable_intrs = qla4xxx_enable_intrs,
4403 .start_firmware = qla4xxx_start_firmware,
4404 .intr_handler = qla4xxx_intr_handler,
4405 .interrupt_service_routine = qla4xxx_interrupt_service_routine,
4406 .reset_chip = qla4xxx_soft_reset,
4407 .reset_firmware = qla4xxx_hw_reset,
4408 .queue_iocb = qla4xxx_queue_iocb,
4409 .complete_iocb = qla4xxx_complete_iocb,
4410 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out,
4411 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in,
4412 .get_sys_info = qla4xxx_get_sys_info,
4413 .queue_mailbox_command = qla4xxx_queue_mbox_cmd,
4414 .process_mailbox_interrupt = qla4xxx_process_mbox_intr,
4415 };
4416
4417 static struct isp_operations qla4_82xx_isp_ops = {
4418 .iospace_config = qla4_8xxx_iospace_config,
4419 .pci_config = qla4_8xxx_pci_config,
4420 .disable_intrs = qla4_82xx_disable_intrs,
4421 .enable_intrs = qla4_82xx_enable_intrs,
4422 .start_firmware = qla4_8xxx_load_risc,
4423 .restart_firmware = qla4_82xx_try_start_fw,
4424 .intr_handler = qla4_82xx_intr_handler,
4425 .interrupt_service_routine = qla4_82xx_interrupt_service_routine,
4426 .need_reset = qla4_8xxx_need_reset,
4427 .reset_chip = qla4_82xx_isp_reset,
4428 .reset_firmware = qla4_8xxx_stop_firmware,
4429 .queue_iocb = qla4_82xx_queue_iocb,
4430 .complete_iocb = qla4_82xx_complete_iocb,
4431 .rd_shdw_req_q_out = qla4_82xx_rd_shdw_req_q_out,
4432 .rd_shdw_rsp_q_in = qla4_82xx_rd_shdw_rsp_q_in,
4433 .get_sys_info = qla4_8xxx_get_sys_info,
4434 .rd_reg_direct = qla4_82xx_rd_32,
4435 .wr_reg_direct = qla4_82xx_wr_32,
4436 .rd_reg_indirect = qla4_82xx_md_rd_32,
4437 .wr_reg_indirect = qla4_82xx_md_wr_32,
4438 .idc_lock = qla4_82xx_idc_lock,
4439 .idc_unlock = qla4_82xx_idc_unlock,
4440 .rom_lock_recovery = qla4_82xx_rom_lock_recovery,
4441 .queue_mailbox_command = qla4_82xx_queue_mbox_cmd,
4442 .process_mailbox_interrupt = qla4_82xx_process_mbox_intr,
4443 };
4444
4445 static struct isp_operations qla4_83xx_isp_ops = {
4446 .iospace_config = qla4_8xxx_iospace_config,
4447 .pci_config = qla4_8xxx_pci_config,
4448 .disable_intrs = qla4_83xx_disable_intrs,
4449 .enable_intrs = qla4_83xx_enable_intrs,
4450 .start_firmware = qla4_8xxx_load_risc,
4451 .restart_firmware = qla4_83xx_start_firmware,
4452 .intr_handler = qla4_83xx_intr_handler,
4453 .interrupt_service_routine = qla4_83xx_interrupt_service_routine,
4454 .need_reset = qla4_8xxx_need_reset,
4455 .reset_chip = qla4_83xx_isp_reset,
4456 .reset_firmware = qla4_8xxx_stop_firmware,
4457 .queue_iocb = qla4_83xx_queue_iocb,
4458 .complete_iocb = qla4_83xx_complete_iocb,
4459 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out,
4460 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in,
4461 .get_sys_info = qla4_8xxx_get_sys_info,
4462 .rd_reg_direct = qla4_83xx_rd_reg,
4463 .wr_reg_direct = qla4_83xx_wr_reg,
4464 .rd_reg_indirect = qla4_83xx_rd_reg_indirect,
4465 .wr_reg_indirect = qla4_83xx_wr_reg_indirect,
4466 .idc_lock = qla4_83xx_drv_lock,
4467 .idc_unlock = qla4_83xx_drv_unlock,
4468 .rom_lock_recovery = qla4_83xx_rom_lock_recovery,
4469 .queue_mailbox_command = qla4_83xx_queue_mbox_cmd,
4470 .process_mailbox_interrupt = qla4_83xx_process_mbox_intr,
4471 };
4472
4473 uint16_t qla4xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha)
4474 {
4475 return (uint16_t)le32_to_cpu(ha->shadow_regs->req_q_out);
4476 }
4477
4478 uint16_t qla4_82xx_rd_shdw_req_q_out(struct scsi_qla_host *ha)
4479 {
4480 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->req_q_out));
4481 }
4482
4483 uint16_t qla4xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha)
4484 {
4485 return (uint16_t)le32_to_cpu(ha->shadow_regs->rsp_q_in);
4486 }
4487
4488 uint16_t qla4_82xx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha)
4489 {
4490 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->rsp_q_in));
4491 }
4492
4493 static ssize_t qla4xxx_show_boot_eth_info(void *data, int type, char *buf)
4494 {
4495 struct scsi_qla_host *ha = data;
4496 char *str = buf;
4497 int rc;
4498
4499 switch (type) {
4500 case ISCSI_BOOT_ETH_FLAGS:
4501 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT);
4502 break;
4503 case ISCSI_BOOT_ETH_INDEX:
4504 rc = sprintf(str, "0\n");
4505 break;
4506 case ISCSI_BOOT_ETH_MAC:
4507 rc = sysfs_format_mac(str, ha->my_mac,
4508 MAC_ADDR_LEN);
4509 break;
4510 default:
4511 rc = -ENOSYS;
4512 break;
4513 }
4514 return rc;
4515 }
4516
4517 static umode_t qla4xxx_eth_get_attr_visibility(void *data, int type)
4518 {
4519 int rc;
4520
4521 switch (type) {
4522 case ISCSI_BOOT_ETH_FLAGS:
4523 case ISCSI_BOOT_ETH_MAC:
4524 case ISCSI_BOOT_ETH_INDEX:
4525 rc = S_IRUGO;
4526 break;
4527 default:
4528 rc = 0;
4529 break;
4530 }
4531 return rc;
4532 }
4533
4534 static ssize_t qla4xxx_show_boot_ini_info(void *data, int type, char *buf)
4535 {
4536 struct scsi_qla_host *ha = data;
4537 char *str = buf;
4538 int rc;
4539
4540 switch (type) {
4541 case ISCSI_BOOT_INI_INITIATOR_NAME:
4542 rc = sprintf(str, "%s\n", ha->name_string);
4543 break;
4544 default:
4545 rc = -ENOSYS;
4546 break;
4547 }
4548 return rc;
4549 }
4550
4551 static umode_t qla4xxx_ini_get_attr_visibility(void *data, int type)
4552 {
4553 int rc;
4554
4555 switch (type) {
4556 case ISCSI_BOOT_INI_INITIATOR_NAME:
4557 rc = S_IRUGO;
4558 break;
4559 default:
4560 rc = 0;
4561 break;
4562 }
4563 return rc;
4564 }
4565
4566 static ssize_t
4567 qla4xxx_show_boot_tgt_info(struct ql4_boot_session_info *boot_sess, int type,
4568 char *buf)
4569 {
4570 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0];
4571 char *str = buf;
4572 int rc;
4573
4574 switch (type) {
4575 case ISCSI_BOOT_TGT_NAME:
4576 rc = sprintf(buf, "%s\n", (char *)&boot_sess->target_name);
4577 break;
4578 case ISCSI_BOOT_TGT_IP_ADDR:
4579 if (boot_sess->conn_list[0].dest_ipaddr.ip_type == 0x1)
4580 rc = sprintf(buf, "%pI4\n",
4581 &boot_conn->dest_ipaddr.ip_address);
4582 else
4583 rc = sprintf(str, "%pI6\n",
4584 &boot_conn->dest_ipaddr.ip_address);
4585 break;
4586 case ISCSI_BOOT_TGT_PORT:
4587 rc = sprintf(str, "%d\n", boot_conn->dest_port);
4588 break;
4589 case ISCSI_BOOT_TGT_CHAP_NAME:
4590 rc = sprintf(str, "%.*s\n",
4591 boot_conn->chap.target_chap_name_length,
4592 (char *)&boot_conn->chap.target_chap_name);
4593 break;
4594 case ISCSI_BOOT_TGT_CHAP_SECRET:
4595 rc = sprintf(str, "%.*s\n",
4596 boot_conn->chap.target_secret_length,
4597 (char *)&boot_conn->chap.target_secret);
4598 break;
4599 case ISCSI_BOOT_TGT_REV_CHAP_NAME:
4600 rc = sprintf(str, "%.*s\n",
4601 boot_conn->chap.intr_chap_name_length,
4602 (char *)&boot_conn->chap.intr_chap_name);
4603 break;
4604 case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
4605 rc = sprintf(str, "%.*s\n",
4606 boot_conn->chap.intr_secret_length,
4607 (char *)&boot_conn->chap.intr_secret);
4608 break;
4609 case ISCSI_BOOT_TGT_FLAGS:
4610 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT);
4611 break;
4612 case ISCSI_BOOT_TGT_NIC_ASSOC:
4613 rc = sprintf(str, "0\n");
4614 break;
4615 default:
4616 rc = -ENOSYS;
4617 break;
4618 }
4619 return rc;
4620 }
4621
4622 static ssize_t qla4xxx_show_boot_tgt_pri_info(void *data, int type, char *buf)
4623 {
4624 struct scsi_qla_host *ha = data;
4625 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_pri_sess);
4626
4627 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf);
4628 }
4629
4630 static ssize_t qla4xxx_show_boot_tgt_sec_info(void *data, int type, char *buf)
4631 {
4632 struct scsi_qla_host *ha = data;
4633 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_sec_sess);
4634
4635 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf);
4636 }
4637
4638 static umode_t qla4xxx_tgt_get_attr_visibility(void *data, int type)
4639 {
4640 int rc;
4641
4642 switch (type) {
4643 case ISCSI_BOOT_TGT_NAME:
4644 case ISCSI_BOOT_TGT_IP_ADDR:
4645 case ISCSI_BOOT_TGT_PORT:
4646 case ISCSI_BOOT_TGT_CHAP_NAME:
4647 case ISCSI_BOOT_TGT_CHAP_SECRET:
4648 case ISCSI_BOOT_TGT_REV_CHAP_NAME:
4649 case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
4650 case ISCSI_BOOT_TGT_NIC_ASSOC:
4651 case ISCSI_BOOT_TGT_FLAGS:
4652 rc = S_IRUGO;
4653 break;
4654 default:
4655 rc = 0;
4656 break;
4657 }
4658 return rc;
4659 }
4660
4661 static void qla4xxx_boot_release(void *data)
4662 {
4663 struct scsi_qla_host *ha = data;
4664
4665 scsi_host_put(ha->host);
4666 }
4667
4668 static int get_fw_boot_info(struct scsi_qla_host *ha, uint16_t ddb_index[])
4669 {
4670 dma_addr_t buf_dma;
4671 uint32_t addr, pri_addr, sec_addr;
4672 uint32_t offset;
4673 uint16_t func_num;
4674 uint8_t val;
4675 uint8_t *buf = NULL;
4676 size_t size = 13 * sizeof(uint8_t);
4677 int ret = QLA_SUCCESS;
4678
4679 func_num = PCI_FUNC(ha->pdev->devfn);
4680
4681 ql4_printk(KERN_INFO, ha, "%s: Get FW boot info for 0x%x func %d\n",
4682 __func__, ha->pdev->device, func_num);
4683
4684 if (is_qla40XX(ha)) {
4685 if (func_num == 1) {
4686 addr = NVRAM_PORT0_BOOT_MODE;
4687 pri_addr = NVRAM_PORT0_BOOT_PRI_TGT;
4688 sec_addr = NVRAM_PORT0_BOOT_SEC_TGT;
4689 } else if (func_num == 3) {
4690 addr = NVRAM_PORT1_BOOT_MODE;
4691 pri_addr = NVRAM_PORT1_BOOT_PRI_TGT;
4692 sec_addr = NVRAM_PORT1_BOOT_SEC_TGT;
4693 } else {
4694 ret = QLA_ERROR;
4695 goto exit_boot_info;
4696 }
4697
4698 /* Check Boot Mode */
4699 val = rd_nvram_byte(ha, addr);
4700 if (!(val & 0x07)) {
4701 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Adapter boot "
4702 "options : 0x%x\n", __func__, val));
4703 ret = QLA_ERROR;
4704 goto exit_boot_info;
4705 }
4706
4707 /* get primary valid target index */
4708 val = rd_nvram_byte(ha, pri_addr);
4709 if (val & BIT_7)
4710 ddb_index[0] = (val & 0x7f);
4711
4712 /* get secondary valid target index */
4713 val = rd_nvram_byte(ha, sec_addr);
4714 if (val & BIT_7)
4715 ddb_index[1] = (val & 0x7f);
4716
4717 } else if (is_qla80XX(ha)) {
4718 buf = dma_alloc_coherent(&ha->pdev->dev, size,
4719 &buf_dma, GFP_KERNEL);
4720 if (!buf) {
4721 DEBUG2(ql4_printk(KERN_ERR, ha,
4722 "%s: Unable to allocate dma buffer\n",
4723 __func__));
4724 ret = QLA_ERROR;
4725 goto exit_boot_info;
4726 }
4727
4728 if (ha->port_num == 0)
4729 offset = BOOT_PARAM_OFFSET_PORT0;
4730 else if (ha->port_num == 1)
4731 offset = BOOT_PARAM_OFFSET_PORT1;
4732 else {
4733 ret = QLA_ERROR;
4734 goto exit_boot_info_free;
4735 }
4736 addr = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_iscsi_param * 4) +
4737 offset;
4738 if (qla4xxx_get_flash(ha, buf_dma, addr,
4739 13 * sizeof(uint8_t)) != QLA_SUCCESS) {
4740 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: Get Flash"
4741 " failed\n", ha->host_no, __func__));
4742 ret = QLA_ERROR;
4743 goto exit_boot_info_free;
4744 }
4745 /* Check Boot Mode */
4746 if (!(buf[1] & 0x07)) {
4747 DEBUG2(ql4_printk(KERN_INFO, ha, "Firmware boot options"
4748 " : 0x%x\n", buf[1]));
4749 ret = QLA_ERROR;
4750 goto exit_boot_info_free;
4751 }
4752
4753 /* get primary valid target index */
4754 if (buf[2] & BIT_7)
4755 ddb_index[0] = buf[2] & 0x7f;
4756
4757 /* get secondary valid target index */
4758 if (buf[11] & BIT_7)
4759 ddb_index[1] = buf[11] & 0x7f;
4760 } else {
4761 ret = QLA_ERROR;
4762 goto exit_boot_info;
4763 }
4764
4765 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary target ID %d, Secondary"
4766 " target ID %d\n", __func__, ddb_index[0],
4767 ddb_index[1]));
4768
4769 exit_boot_info_free:
4770 dma_free_coherent(&ha->pdev->dev, size, buf, buf_dma);
4771 exit_boot_info:
4772 ha->pri_ddb_idx = ddb_index[0];
4773 ha->sec_ddb_idx = ddb_index[1];
4774 return ret;
4775 }
4776
4777 /**
4778 * qla4xxx_get_bidi_chap - Get a BIDI CHAP user and password
4779 * @ha: pointer to adapter structure
4780 * @username: CHAP username to be returned
4781 * @password: CHAP password to be returned
4782 *
4783 * If a boot entry has BIDI CHAP enabled then we need to set the BIDI CHAP
4784 * user and password in the sysfs entry in /sys/firmware/iscsi_boot#/.
4785 * So from the CHAP cache find the first BIDI CHAP entry and set it
4786 * to the boot record in sysfs.
4787 **/
4788 static int qla4xxx_get_bidi_chap(struct scsi_qla_host *ha, char *username,
4789 char *password)
4790 {
4791 int i, ret = -EINVAL;
4792 int max_chap_entries = 0;
4793 struct ql4_chap_table *chap_table;
4794
4795 if (is_qla80XX(ha))
4796 max_chap_entries = (ha->hw.flt_chap_size / 2) /
4797 sizeof(struct ql4_chap_table);
4798 else
4799 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
4800
4801 if (!ha->chap_list) {
4802 ql4_printk(KERN_ERR, ha, "Do not have CHAP table cache\n");
4803 return ret;
4804 }
4805
4806 mutex_lock(&ha->chap_sem);
4807 for (i = 0; i < max_chap_entries; i++) {
4808 chap_table = (struct ql4_chap_table *)ha->chap_list + i;
4809 if (chap_table->cookie !=
4810 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) {
4811 continue;
4812 }
4813
4814 if (chap_table->flags & BIT_7) /* local */
4815 continue;
4816
4817 if (!(chap_table->flags & BIT_6)) /* Not BIDI */
4818 continue;
4819
4820 strncpy(password, chap_table->secret, QL4_CHAP_MAX_SECRET_LEN);
4821 strncpy(username, chap_table->name, QL4_CHAP_MAX_NAME_LEN);
4822 ret = 0;
4823 break;
4824 }
4825 mutex_unlock(&ha->chap_sem);
4826
4827 return ret;
4828 }
4829
4830
4831 static int qla4xxx_get_boot_target(struct scsi_qla_host *ha,
4832 struct ql4_boot_session_info *boot_sess,
4833 uint16_t ddb_index)
4834 {
4835 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0];
4836 struct dev_db_entry *fw_ddb_entry;
4837 dma_addr_t fw_ddb_entry_dma;
4838 uint16_t idx;
4839 uint16_t options;
4840 int ret = QLA_SUCCESS;
4841
4842 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
4843 &fw_ddb_entry_dma, GFP_KERNEL);
4844 if (!fw_ddb_entry) {
4845 DEBUG2(ql4_printk(KERN_ERR, ha,
4846 "%s: Unable to allocate dma buffer.\n",
4847 __func__));
4848 ret = QLA_ERROR;
4849 return ret;
4850 }
4851
4852 if (qla4xxx_bootdb_by_index(ha, fw_ddb_entry,
4853 fw_ddb_entry_dma, ddb_index)) {
4854 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: No Flash DDB found at "
4855 "index [%d]\n", __func__, ddb_index));
4856 ret = QLA_ERROR;
4857 goto exit_boot_target;
4858 }
4859
4860 /* Update target name and IP from DDB */
4861 memcpy(boot_sess->target_name, fw_ddb_entry->iscsi_name,
4862 min(sizeof(boot_sess->target_name),
4863 sizeof(fw_ddb_entry->iscsi_name)));
4864
4865 options = le16_to_cpu(fw_ddb_entry->options);
4866 if (options & DDB_OPT_IPV6_DEVICE) {
4867 memcpy(&boot_conn->dest_ipaddr.ip_address,
4868 &fw_ddb_entry->ip_addr[0], IPv6_ADDR_LEN);
4869 } else {
4870 boot_conn->dest_ipaddr.ip_type = 0x1;
4871 memcpy(&boot_conn->dest_ipaddr.ip_address,
4872 &fw_ddb_entry->ip_addr[0], IP_ADDR_LEN);
4873 }
4874
4875 boot_conn->dest_port = le16_to_cpu(fw_ddb_entry->port);
4876
4877 /* update chap information */
4878 idx = __le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
4879
4880 if (BIT_7 & le16_to_cpu(fw_ddb_entry->iscsi_options)) {
4881
4882 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting chap\n"));
4883
4884 ret = qla4xxx_get_chap(ha, (char *)&boot_conn->chap.
4885 target_chap_name,
4886 (char *)&boot_conn->chap.target_secret,
4887 idx);
4888 if (ret) {
4889 ql4_printk(KERN_ERR, ha, "Failed to set chap\n");
4890 ret = QLA_ERROR;
4891 goto exit_boot_target;
4892 }
4893
4894 boot_conn->chap.target_chap_name_length = QL4_CHAP_MAX_NAME_LEN;
4895 boot_conn->chap.target_secret_length = QL4_CHAP_MAX_SECRET_LEN;
4896 }
4897
4898 if (BIT_4 & le16_to_cpu(fw_ddb_entry->iscsi_options)) {
4899
4900 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting BIDI chap\n"));
4901
4902 ret = qla4xxx_get_bidi_chap(ha,
4903 (char *)&boot_conn->chap.intr_chap_name,
4904 (char *)&boot_conn->chap.intr_secret);
4905
4906 if (ret) {
4907 ql4_printk(KERN_ERR, ha, "Failed to set BIDI chap\n");
4908 ret = QLA_ERROR;
4909 goto exit_boot_target;
4910 }
4911
4912 boot_conn->chap.intr_chap_name_length = QL4_CHAP_MAX_NAME_LEN;
4913 boot_conn->chap.intr_secret_length = QL4_CHAP_MAX_SECRET_LEN;
4914 }
4915
4916 exit_boot_target:
4917 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
4918 fw_ddb_entry, fw_ddb_entry_dma);
4919 return ret;
4920 }
4921
4922 static int qla4xxx_get_boot_info(struct scsi_qla_host *ha)
4923 {
4924 uint16_t ddb_index[2];
4925 int ret = QLA_ERROR;
4926 int rval;
4927
4928 memset(ddb_index, 0, sizeof(ddb_index));
4929 ddb_index[0] = 0xffff;
4930 ddb_index[1] = 0xffff;
4931 ret = get_fw_boot_info(ha, ddb_index);
4932 if (ret != QLA_SUCCESS) {
4933 DEBUG2(ql4_printk(KERN_INFO, ha,
4934 "%s: No boot target configured.\n", __func__));
4935 return ret;
4936 }
4937
4938 if (ql4xdisablesysfsboot)
4939 return QLA_SUCCESS;
4940
4941 if (ddb_index[0] == 0xffff)
4942 goto sec_target;
4943
4944 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_pri_sess),
4945 ddb_index[0]);
4946 if (rval != QLA_SUCCESS) {
4947 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary boot target not "
4948 "configured\n", __func__));
4949 } else
4950 ret = QLA_SUCCESS;
4951
4952 sec_target:
4953 if (ddb_index[1] == 0xffff)
4954 goto exit_get_boot_info;
4955
4956 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_sec_sess),
4957 ddb_index[1]);
4958 if (rval != QLA_SUCCESS) {
4959 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Secondary boot target not"
4960 " configured\n", __func__));
4961 } else
4962 ret = QLA_SUCCESS;
4963
4964 exit_get_boot_info:
4965 return ret;
4966 }
4967
4968 static int qla4xxx_setup_boot_info(struct scsi_qla_host *ha)
4969 {
4970 struct iscsi_boot_kobj *boot_kobj;
4971
4972 if (qla4xxx_get_boot_info(ha) != QLA_SUCCESS)
4973 return QLA_ERROR;
4974
4975 if (ql4xdisablesysfsboot) {
4976 ql4_printk(KERN_INFO, ha,
4977 "%s: syfsboot disabled - driver will trigger login "
4978 "and publish session for discovery .\n", __func__);
4979 return QLA_SUCCESS;
4980 }
4981
4982
4983 ha->boot_kset = iscsi_boot_create_host_kset(ha->host->host_no);
4984 if (!ha->boot_kset)
4985 goto kset_free;
4986
4987 if (!scsi_host_get(ha->host))
4988 goto kset_free;
4989 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 0, ha,
4990 qla4xxx_show_boot_tgt_pri_info,
4991 qla4xxx_tgt_get_attr_visibility,
4992 qla4xxx_boot_release);
4993 if (!boot_kobj)
4994 goto put_host;
4995
4996 if (!scsi_host_get(ha->host))
4997 goto kset_free;
4998 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 1, ha,
4999 qla4xxx_show_boot_tgt_sec_info,
5000 qla4xxx_tgt_get_attr_visibility,
5001 qla4xxx_boot_release);
5002 if (!boot_kobj)
5003 goto put_host;
5004
5005 if (!scsi_host_get(ha->host))
5006 goto kset_free;
5007 boot_kobj = iscsi_boot_create_initiator(ha->boot_kset, 0, ha,
5008 qla4xxx_show_boot_ini_info,
5009 qla4xxx_ini_get_attr_visibility,
5010 qla4xxx_boot_release);
5011 if (!boot_kobj)
5012 goto put_host;
5013
5014 if (!scsi_host_get(ha->host))
5015 goto kset_free;
5016 boot_kobj = iscsi_boot_create_ethernet(ha->boot_kset, 0, ha,
5017 qla4xxx_show_boot_eth_info,
5018 qla4xxx_eth_get_attr_visibility,
5019 qla4xxx_boot_release);
5020 if (!boot_kobj)
5021 goto put_host;
5022
5023 return QLA_SUCCESS;
5024
5025 put_host:
5026 scsi_host_put(ha->host);
5027 kset_free:
5028 iscsi_boot_destroy_kset(ha->boot_kset);
5029 return -ENOMEM;
5030 }
5031
5032
5033 /**
5034 * qla4xxx_create chap_list - Create CHAP list from FLASH
5035 * @ha: pointer to adapter structure
5036 *
5037 * Read flash and make a list of CHAP entries, during login when a CHAP entry
5038 * is received, it will be checked in this list. If entry exist then the CHAP
5039 * entry index is set in the DDB. If CHAP entry does not exist in this list
5040 * then a new entry is added in FLASH in CHAP table and the index obtained is
5041 * used in the DDB.
5042 **/
5043 static void qla4xxx_create_chap_list(struct scsi_qla_host *ha)
5044 {
5045 int rval = 0;
5046 uint8_t *chap_flash_data = NULL;
5047 uint32_t offset;
5048 dma_addr_t chap_dma;
5049 uint32_t chap_size = 0;
5050
5051 if (is_qla40XX(ha))
5052 chap_size = MAX_CHAP_ENTRIES_40XX *
5053 sizeof(struct ql4_chap_table);
5054 else /* Single region contains CHAP info for both
5055 * ports which is divided into half for each port.
5056 */
5057 chap_size = ha->hw.flt_chap_size / 2;
5058
5059 chap_flash_data = dma_alloc_coherent(&ha->pdev->dev, chap_size,
5060 &chap_dma, GFP_KERNEL);
5061 if (!chap_flash_data) {
5062 ql4_printk(KERN_ERR, ha, "No memory for chap_flash_data\n");
5063 return;
5064 }
5065 if (is_qla40XX(ha))
5066 offset = FLASH_CHAP_OFFSET;
5067 else {
5068 offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2);
5069 if (ha->port_num == 1)
5070 offset += chap_size;
5071 }
5072
5073 rval = qla4xxx_get_flash(ha, chap_dma, offset, chap_size);
5074 if (rval != QLA_SUCCESS)
5075 goto exit_chap_list;
5076
5077 if (ha->chap_list == NULL)
5078 ha->chap_list = vmalloc(chap_size);
5079 if (ha->chap_list == NULL) {
5080 ql4_printk(KERN_ERR, ha, "No memory for ha->chap_list\n");
5081 goto exit_chap_list;
5082 }
5083
5084 memcpy(ha->chap_list, chap_flash_data, chap_size);
5085
5086 exit_chap_list:
5087 dma_free_coherent(&ha->pdev->dev, chap_size,
5088 chap_flash_data, chap_dma);
5089 }
5090
5091 static void qla4xxx_get_param_ddb(struct ddb_entry *ddb_entry,
5092 struct ql4_tuple_ddb *tddb)
5093 {
5094 struct scsi_qla_host *ha;
5095 struct iscsi_cls_session *cls_sess;
5096 struct iscsi_cls_conn *cls_conn;
5097 struct iscsi_session *sess;
5098 struct iscsi_conn *conn;
5099
5100 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
5101 ha = ddb_entry->ha;
5102 cls_sess = ddb_entry->sess;
5103 sess = cls_sess->dd_data;
5104 cls_conn = ddb_entry->conn;
5105 conn = cls_conn->dd_data;
5106
5107 tddb->tpgt = sess->tpgt;
5108 tddb->port = conn->persistent_port;
5109 strncpy(tddb->iscsi_name, sess->targetname, ISCSI_NAME_SIZE);
5110 strncpy(tddb->ip_addr, conn->persistent_address, DDB_IPADDR_LEN);
5111 }
5112
5113 static void qla4xxx_convert_param_ddb(struct dev_db_entry *fw_ddb_entry,
5114 struct ql4_tuple_ddb *tddb,
5115 uint8_t *flash_isid)
5116 {
5117 uint16_t options = 0;
5118
5119 tddb->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
5120 memcpy(&tddb->iscsi_name[0], &fw_ddb_entry->iscsi_name[0],
5121 min(sizeof(tddb->iscsi_name), sizeof(fw_ddb_entry->iscsi_name)));
5122
5123 options = le16_to_cpu(fw_ddb_entry->options);
5124 if (options & DDB_OPT_IPV6_DEVICE)
5125 sprintf(tddb->ip_addr, "%pI6", fw_ddb_entry->ip_addr);
5126 else
5127 sprintf(tddb->ip_addr, "%pI4", fw_ddb_entry->ip_addr);
5128
5129 tddb->port = le16_to_cpu(fw_ddb_entry->port);
5130
5131 if (flash_isid == NULL)
5132 memcpy(&tddb->isid[0], &fw_ddb_entry->isid[0],
5133 sizeof(tddb->isid));
5134 else
5135 memcpy(&tddb->isid[0], &flash_isid[0], sizeof(tddb->isid));
5136 }
5137
5138 static int qla4xxx_compare_tuple_ddb(struct scsi_qla_host *ha,
5139 struct ql4_tuple_ddb *old_tddb,
5140 struct ql4_tuple_ddb *new_tddb,
5141 uint8_t is_isid_compare)
5142 {
5143 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name))
5144 return QLA_ERROR;
5145
5146 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr))
5147 return QLA_ERROR;
5148
5149 if (old_tddb->port != new_tddb->port)
5150 return QLA_ERROR;
5151
5152 /* For multi sessions, driver generates the ISID, so do not compare
5153 * ISID in reset path since it would be a comparison between the
5154 * driver generated ISID and firmware generated ISID. This could
5155 * lead to adding duplicated DDBs in the list as driver generated
5156 * ISID would not match firmware generated ISID.
5157 */
5158 if (is_isid_compare) {
5159 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: old ISID [%02x%02x%02x"
5160 "%02x%02x%02x] New ISID [%02x%02x%02x%02x%02x%02x]\n",
5161 __func__, old_tddb->isid[5], old_tddb->isid[4],
5162 old_tddb->isid[3], old_tddb->isid[2], old_tddb->isid[1],
5163 old_tddb->isid[0], new_tddb->isid[5], new_tddb->isid[4],
5164 new_tddb->isid[3], new_tddb->isid[2], new_tddb->isid[1],
5165 new_tddb->isid[0]));
5166
5167 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0],
5168 sizeof(old_tddb->isid)))
5169 return QLA_ERROR;
5170 }
5171
5172 DEBUG2(ql4_printk(KERN_INFO, ha,
5173 "Match Found, fw[%d,%d,%s,%s], [%d,%d,%s,%s]",
5174 old_tddb->port, old_tddb->tpgt, old_tddb->ip_addr,
5175 old_tddb->iscsi_name, new_tddb->port, new_tddb->tpgt,
5176 new_tddb->ip_addr, new_tddb->iscsi_name));
5177
5178 return QLA_SUCCESS;
5179 }
5180
5181 static int qla4xxx_is_session_exists(struct scsi_qla_host *ha,
5182 struct dev_db_entry *fw_ddb_entry,
5183 uint32_t *index)
5184 {
5185 struct ddb_entry *ddb_entry;
5186 struct ql4_tuple_ddb *fw_tddb = NULL;
5187 struct ql4_tuple_ddb *tmp_tddb = NULL;
5188 int idx;
5189 int ret = QLA_ERROR;
5190
5191 fw_tddb = vzalloc(sizeof(*fw_tddb));
5192 if (!fw_tddb) {
5193 DEBUG2(ql4_printk(KERN_WARNING, ha,
5194 "Memory Allocation failed.\n"));
5195 ret = QLA_SUCCESS;
5196 goto exit_check;
5197 }
5198
5199 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
5200 if (!tmp_tddb) {
5201 DEBUG2(ql4_printk(KERN_WARNING, ha,
5202 "Memory Allocation failed.\n"));
5203 ret = QLA_SUCCESS;
5204 goto exit_check;
5205 }
5206
5207 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL);
5208
5209 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
5210 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
5211 if (ddb_entry == NULL)
5212 continue;
5213
5214 qla4xxx_get_param_ddb(ddb_entry, tmp_tddb);
5215 if (!qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, false)) {
5216 ret = QLA_SUCCESS; /* found */
5217 if (index != NULL)
5218 *index = idx;
5219 goto exit_check;
5220 }
5221 }
5222
5223 exit_check:
5224 if (fw_tddb)
5225 vfree(fw_tddb);
5226 if (tmp_tddb)
5227 vfree(tmp_tddb);
5228 return ret;
5229 }
5230
5231 /**
5232 * qla4xxx_check_existing_isid - check if target with same isid exist
5233 * in target list
5234 * @list_nt: list of target
5235 * @isid: isid to check
5236 *
5237 * This routine return QLA_SUCCESS if target with same isid exist
5238 **/
5239 static int qla4xxx_check_existing_isid(struct list_head *list_nt, uint8_t *isid)
5240 {
5241 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp;
5242 struct dev_db_entry *fw_ddb_entry;
5243
5244 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
5245 fw_ddb_entry = &nt_ddb_idx->fw_ddb;
5246
5247 if (memcmp(&fw_ddb_entry->isid[0], &isid[0],
5248 sizeof(nt_ddb_idx->fw_ddb.isid)) == 0) {
5249 return QLA_SUCCESS;
5250 }
5251 }
5252 return QLA_ERROR;
5253 }
5254
5255 /**
5256 * qla4xxx_update_isid - compare ddbs and updated isid
5257 * @ha: Pointer to host adapter structure.
5258 * @list_nt: list of nt target
5259 * @fw_ddb_entry: firmware ddb entry
5260 *
5261 * This routine update isid if ddbs have same iqn, same isid and
5262 * different IP addr.
5263 * Return QLA_SUCCESS if isid is updated.
5264 **/
5265 static int qla4xxx_update_isid(struct scsi_qla_host *ha,
5266 struct list_head *list_nt,
5267 struct dev_db_entry *fw_ddb_entry)
5268 {
5269 uint8_t base_value, i;
5270
5271 base_value = fw_ddb_entry->isid[1] & 0x1f;
5272 for (i = 0; i < 8; i++) {
5273 fw_ddb_entry->isid[1] = (base_value | (i << 5));
5274 if (qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid))
5275 break;
5276 }
5277
5278 if (!qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid))
5279 return QLA_ERROR;
5280
5281 return QLA_SUCCESS;
5282 }
5283
5284 /**
5285 * qla4xxx_should_update_isid - check if isid need to update
5286 * @ha: Pointer to host adapter structure.
5287 * @old_tddb: ddb tuple
5288 * @new_tddb: ddb tuple
5289 *
5290 * Return QLA_SUCCESS if different IP, different PORT, same iqn,
5291 * same isid
5292 **/
5293 static int qla4xxx_should_update_isid(struct scsi_qla_host *ha,
5294 struct ql4_tuple_ddb *old_tddb,
5295 struct ql4_tuple_ddb *new_tddb)
5296 {
5297 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr) == 0) {
5298 /* Same ip */
5299 if (old_tddb->port == new_tddb->port)
5300 return QLA_ERROR;
5301 }
5302
5303 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name))
5304 /* different iqn */
5305 return QLA_ERROR;
5306
5307 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0],
5308 sizeof(old_tddb->isid)))
5309 /* different isid */
5310 return QLA_ERROR;
5311
5312 return QLA_SUCCESS;
5313 }
5314
5315 /**
5316 * qla4xxx_is_flash_ddb_exists - check if fw_ddb_entry already exists in list_nt
5317 * @ha: Pointer to host adapter structure.
5318 * @list_nt: list of nt target.
5319 * @fw_ddb_entry: firmware ddb entry.
5320 *
5321 * This routine check if fw_ddb_entry already exists in list_nt to avoid
5322 * duplicate ddb in list_nt.
5323 * Return QLA_SUCCESS if duplicate ddb exit in list_nl.
5324 * Note: This function also update isid of DDB if required.
5325 **/
5326
5327 static int qla4xxx_is_flash_ddb_exists(struct scsi_qla_host *ha,
5328 struct list_head *list_nt,
5329 struct dev_db_entry *fw_ddb_entry)
5330 {
5331 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp;
5332 struct ql4_tuple_ddb *fw_tddb = NULL;
5333 struct ql4_tuple_ddb *tmp_tddb = NULL;
5334 int rval, ret = QLA_ERROR;
5335
5336 fw_tddb = vzalloc(sizeof(*fw_tddb));
5337 if (!fw_tddb) {
5338 DEBUG2(ql4_printk(KERN_WARNING, ha,
5339 "Memory Allocation failed.\n"));
5340 ret = QLA_SUCCESS;
5341 goto exit_check;
5342 }
5343
5344 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
5345 if (!tmp_tddb) {
5346 DEBUG2(ql4_printk(KERN_WARNING, ha,
5347 "Memory Allocation failed.\n"));
5348 ret = QLA_SUCCESS;
5349 goto exit_check;
5350 }
5351
5352 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL);
5353
5354 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
5355 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb,
5356 nt_ddb_idx->flash_isid);
5357 ret = qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, true);
5358 /* found duplicate ddb */
5359 if (ret == QLA_SUCCESS)
5360 goto exit_check;
5361 }
5362
5363 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
5364 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb, NULL);
5365
5366 ret = qla4xxx_should_update_isid(ha, tmp_tddb, fw_tddb);
5367 if (ret == QLA_SUCCESS) {
5368 rval = qla4xxx_update_isid(ha, list_nt, fw_ddb_entry);
5369 if (rval == QLA_SUCCESS)
5370 ret = QLA_ERROR;
5371 else
5372 ret = QLA_SUCCESS;
5373
5374 goto exit_check;
5375 }
5376 }
5377
5378 exit_check:
5379 if (fw_tddb)
5380 vfree(fw_tddb);
5381 if (tmp_tddb)
5382 vfree(tmp_tddb);
5383 return ret;
5384 }
5385
5386 static void qla4xxx_free_ddb_list(struct list_head *list_ddb)
5387 {
5388 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
5389
5390 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
5391 list_del_init(&ddb_idx->list);
5392 vfree(ddb_idx);
5393 }
5394 }
5395
5396 static struct iscsi_endpoint *qla4xxx_get_ep_fwdb(struct scsi_qla_host *ha,
5397 struct dev_db_entry *fw_ddb_entry)
5398 {
5399 struct iscsi_endpoint *ep;
5400 struct sockaddr_in *addr;
5401 struct sockaddr_in6 *addr6;
5402 struct sockaddr *t_addr;
5403 struct sockaddr_storage *dst_addr;
5404 char *ip;
5405
5406 /* TODO: need to destroy on unload iscsi_endpoint*/
5407 dst_addr = vmalloc(sizeof(*dst_addr));
5408 if (!dst_addr)
5409 return NULL;
5410
5411 if (fw_ddb_entry->options & DDB_OPT_IPV6_DEVICE) {
5412 t_addr = (struct sockaddr *)dst_addr;
5413 t_addr->sa_family = AF_INET6;
5414 addr6 = (struct sockaddr_in6 *)dst_addr;
5415 ip = (char *)&addr6->sin6_addr;
5416 memcpy(ip, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN);
5417 addr6->sin6_port = htons(le16_to_cpu(fw_ddb_entry->port));
5418
5419 } else {
5420 t_addr = (struct sockaddr *)dst_addr;
5421 t_addr->sa_family = AF_INET;
5422 addr = (struct sockaddr_in *)dst_addr;
5423 ip = (char *)&addr->sin_addr;
5424 memcpy(ip, fw_ddb_entry->ip_addr, IP_ADDR_LEN);
5425 addr->sin_port = htons(le16_to_cpu(fw_ddb_entry->port));
5426 }
5427
5428 ep = qla4xxx_ep_connect(ha->host, (struct sockaddr *)dst_addr, 0);
5429 vfree(dst_addr);
5430 return ep;
5431 }
5432
5433 static int qla4xxx_verify_boot_idx(struct scsi_qla_host *ha, uint16_t idx)
5434 {
5435 if (ql4xdisablesysfsboot)
5436 return QLA_SUCCESS;
5437 if (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx)
5438 return QLA_ERROR;
5439 return QLA_SUCCESS;
5440 }
5441
5442 static void qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha,
5443 struct ddb_entry *ddb_entry,
5444 uint16_t idx)
5445 {
5446 uint16_t def_timeout;
5447
5448 ddb_entry->ddb_type = FLASH_DDB;
5449 ddb_entry->fw_ddb_index = INVALID_ENTRY;
5450 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE;
5451 ddb_entry->ha = ha;
5452 ddb_entry->unblock_sess = qla4xxx_unblock_flash_ddb;
5453 ddb_entry->ddb_change = qla4xxx_flash_ddb_change;
5454 ddb_entry->chap_tbl_idx = INVALID_ENTRY;
5455
5456 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY);
5457 atomic_set(&ddb_entry->relogin_timer, 0);
5458 atomic_set(&ddb_entry->relogin_retry_count, 0);
5459 def_timeout = le16_to_cpu(ddb_entry->fw_ddb_entry.def_timeout);
5460 ddb_entry->default_relogin_timeout =
5461 (def_timeout > LOGIN_TOV) && (def_timeout < LOGIN_TOV * 10) ?
5462 def_timeout : LOGIN_TOV;
5463 ddb_entry->default_time2wait =
5464 le16_to_cpu(ddb_entry->fw_ddb_entry.iscsi_def_time2wait);
5465
5466 if (ql4xdisablesysfsboot &&
5467 (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx))
5468 set_bit(DF_BOOT_TGT, &ddb_entry->flags);
5469 }
5470
5471 static void qla4xxx_wait_for_ip_configuration(struct scsi_qla_host *ha)
5472 {
5473 uint32_t idx = 0;
5474 uint32_t ip_idx[IP_ADDR_COUNT] = {0, 1, 2, 3}; /* 4 IP interfaces */
5475 uint32_t sts[MBOX_REG_COUNT];
5476 uint32_t ip_state;
5477 unsigned long wtime;
5478 int ret;
5479
5480 wtime = jiffies + (HZ * IP_CONFIG_TOV);
5481 do {
5482 for (idx = 0; idx < IP_ADDR_COUNT; idx++) {
5483 if (ip_idx[idx] == -1)
5484 continue;
5485
5486 ret = qla4xxx_get_ip_state(ha, 0, ip_idx[idx], sts);
5487
5488 if (ret == QLA_ERROR) {
5489 ip_idx[idx] = -1;
5490 continue;
5491 }
5492
5493 ip_state = (sts[1] & IP_STATE_MASK) >> IP_STATE_SHIFT;
5494
5495 DEBUG2(ql4_printk(KERN_INFO, ha,
5496 "Waiting for IP state for idx = %d, state = 0x%x\n",
5497 ip_idx[idx], ip_state));
5498 if (ip_state == IP_ADDRSTATE_UNCONFIGURED ||
5499 ip_state == IP_ADDRSTATE_INVALID ||
5500 ip_state == IP_ADDRSTATE_PREFERRED ||
5501 ip_state == IP_ADDRSTATE_DEPRICATED ||
5502 ip_state == IP_ADDRSTATE_DISABLING)
5503 ip_idx[idx] = -1;
5504 }
5505
5506 /* Break if all IP states checked */
5507 if ((ip_idx[0] == -1) &&
5508 (ip_idx[1] == -1) &&
5509 (ip_idx[2] == -1) &&
5510 (ip_idx[3] == -1))
5511 break;
5512 schedule_timeout_uninterruptible(HZ);
5513 } while (time_after(wtime, jiffies));
5514 }
5515
5516 static int qla4xxx_cmp_fw_stentry(struct dev_db_entry *fw_ddb_entry,
5517 struct dev_db_entry *flash_ddb_entry)
5518 {
5519 uint16_t options = 0;
5520 size_t ip_len = IP_ADDR_LEN;
5521
5522 options = le16_to_cpu(fw_ddb_entry->options);
5523 if (options & DDB_OPT_IPV6_DEVICE)
5524 ip_len = IPv6_ADDR_LEN;
5525
5526 if (memcmp(fw_ddb_entry->ip_addr, flash_ddb_entry->ip_addr, ip_len))
5527 return QLA_ERROR;
5528
5529 if (memcmp(&fw_ddb_entry->isid[0], &flash_ddb_entry->isid[0],
5530 sizeof(fw_ddb_entry->isid)))
5531 return QLA_ERROR;
5532
5533 if (memcmp(&fw_ddb_entry->port, &flash_ddb_entry->port,
5534 sizeof(fw_ddb_entry->port)))
5535 return QLA_ERROR;
5536
5537 return QLA_SUCCESS;
5538 }
5539
5540 static int qla4xxx_find_flash_st_idx(struct scsi_qla_host *ha,
5541 struct dev_db_entry *fw_ddb_entry,
5542 uint32_t fw_idx, uint32_t *flash_index)
5543 {
5544 struct dev_db_entry *flash_ddb_entry;
5545 dma_addr_t flash_ddb_entry_dma;
5546 uint32_t idx = 0;
5547 int max_ddbs;
5548 int ret = QLA_ERROR, status;
5549
5550 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
5551 MAX_DEV_DB_ENTRIES;
5552
5553 flash_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
5554 &flash_ddb_entry_dma);
5555 if (flash_ddb_entry == NULL || fw_ddb_entry == NULL) {
5556 ql4_printk(KERN_ERR, ha, "Out of memory\n");
5557 goto exit_find_st_idx;
5558 }
5559
5560 status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry,
5561 flash_ddb_entry_dma, fw_idx);
5562 if (status == QLA_SUCCESS) {
5563 status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry);
5564 if (status == QLA_SUCCESS) {
5565 *flash_index = fw_idx;
5566 ret = QLA_SUCCESS;
5567 goto exit_find_st_idx;
5568 }
5569 }
5570
5571 for (idx = 0; idx < max_ddbs; idx++) {
5572 status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry,
5573 flash_ddb_entry_dma, idx);
5574 if (status == QLA_ERROR)
5575 continue;
5576
5577 status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry);
5578 if (status == QLA_SUCCESS) {
5579 *flash_index = idx;
5580 ret = QLA_SUCCESS;
5581 goto exit_find_st_idx;
5582 }
5583 }
5584
5585 if (idx == max_ddbs)
5586 ql4_printk(KERN_ERR, ha, "Failed to find ST [%d] in flash\n",
5587 fw_idx);
5588
5589 exit_find_st_idx:
5590 if (flash_ddb_entry)
5591 dma_pool_free(ha->fw_ddb_dma_pool, flash_ddb_entry,
5592 flash_ddb_entry_dma);
5593
5594 return ret;
5595 }
5596
5597 static void qla4xxx_build_st_list(struct scsi_qla_host *ha,
5598 struct list_head *list_st)
5599 {
5600 struct qla_ddb_index *st_ddb_idx;
5601 int max_ddbs;
5602 int fw_idx_size;
5603 struct dev_db_entry *fw_ddb_entry;
5604 dma_addr_t fw_ddb_dma;
5605 int ret;
5606 uint32_t idx = 0, next_idx = 0;
5607 uint32_t state = 0, conn_err = 0;
5608 uint32_t flash_index = -1;
5609 uint16_t conn_id = 0;
5610
5611 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
5612 &fw_ddb_dma);
5613 if (fw_ddb_entry == NULL) {
5614 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
5615 goto exit_st_list;
5616 }
5617
5618 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
5619 MAX_DEV_DB_ENTRIES;
5620 fw_idx_size = sizeof(struct qla_ddb_index);
5621
5622 for (idx = 0; idx < max_ddbs; idx = next_idx) {
5623 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
5624 NULL, &next_idx, &state,
5625 &conn_err, NULL, &conn_id);
5626 if (ret == QLA_ERROR)
5627 break;
5628
5629 /* Ignore DDB if invalid state (unassigned) */
5630 if (state == DDB_DS_UNASSIGNED)
5631 goto continue_next_st;
5632
5633 /* Check if ST, add to the list_st */
5634 if (strlen((char *) fw_ddb_entry->iscsi_name) != 0)
5635 goto continue_next_st;
5636
5637 st_ddb_idx = vzalloc(fw_idx_size);
5638 if (!st_ddb_idx)
5639 break;
5640
5641 ret = qla4xxx_find_flash_st_idx(ha, fw_ddb_entry, idx,
5642 &flash_index);
5643 if (ret == QLA_ERROR) {
5644 ql4_printk(KERN_ERR, ha,
5645 "No flash entry for ST at idx [%d]\n", idx);
5646 st_ddb_idx->flash_ddb_idx = idx;
5647 } else {
5648 ql4_printk(KERN_INFO, ha,
5649 "ST at idx [%d] is stored at flash [%d]\n",
5650 idx, flash_index);
5651 st_ddb_idx->flash_ddb_idx = flash_index;
5652 }
5653
5654 st_ddb_idx->fw_ddb_idx = idx;
5655
5656 list_add_tail(&st_ddb_idx->list, list_st);
5657 continue_next_st:
5658 if (next_idx == 0)
5659 break;
5660 }
5661
5662 exit_st_list:
5663 if (fw_ddb_entry)
5664 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
5665 }
5666
5667 /**
5668 * qla4xxx_remove_failed_ddb - Remove inactive or failed ddb from list
5669 * @ha: pointer to adapter structure
5670 * @list_ddb: List from which failed ddb to be removed
5671 *
5672 * Iterate over the list of DDBs and find and remove DDBs that are either in
5673 * no connection active state or failed state
5674 **/
5675 static void qla4xxx_remove_failed_ddb(struct scsi_qla_host *ha,
5676 struct list_head *list_ddb)
5677 {
5678 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
5679 uint32_t next_idx = 0;
5680 uint32_t state = 0, conn_err = 0;
5681 int ret;
5682
5683 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
5684 ret = qla4xxx_get_fwddb_entry(ha, ddb_idx->fw_ddb_idx,
5685 NULL, 0, NULL, &next_idx, &state,
5686 &conn_err, NULL, NULL);
5687 if (ret == QLA_ERROR)
5688 continue;
5689
5690 if (state == DDB_DS_NO_CONNECTION_ACTIVE ||
5691 state == DDB_DS_SESSION_FAILED) {
5692 list_del_init(&ddb_idx->list);
5693 vfree(ddb_idx);
5694 }
5695 }
5696 }
5697
5698 static void qla4xxx_update_sess_disc_idx(struct scsi_qla_host *ha,
5699 struct ddb_entry *ddb_entry,
5700 struct dev_db_entry *fw_ddb_entry)
5701 {
5702 struct iscsi_cls_session *cls_sess;
5703 struct iscsi_session *sess;
5704 uint32_t max_ddbs = 0;
5705 uint16_t ddb_link = -1;
5706
5707 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
5708 MAX_DEV_DB_ENTRIES;
5709
5710 cls_sess = ddb_entry->sess;
5711 sess = cls_sess->dd_data;
5712
5713 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
5714 if (ddb_link < max_ddbs)
5715 sess->discovery_parent_idx = ddb_link;
5716 else
5717 sess->discovery_parent_idx = DDB_NO_LINK;
5718 }
5719
5720 static int qla4xxx_sess_conn_setup(struct scsi_qla_host *ha,
5721 struct dev_db_entry *fw_ddb_entry,
5722 int is_reset, uint16_t idx)
5723 {
5724 struct iscsi_cls_session *cls_sess;
5725 struct iscsi_session *sess;
5726 struct iscsi_cls_conn *cls_conn;
5727 struct iscsi_endpoint *ep;
5728 uint16_t cmds_max = 32;
5729 uint16_t conn_id = 0;
5730 uint32_t initial_cmdsn = 0;
5731 int ret = QLA_SUCCESS;
5732
5733 struct ddb_entry *ddb_entry = NULL;
5734
5735 /* Create session object, with INVALID_ENTRY,
5736 * the targer_id would get set when we issue the login
5737 */
5738 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, ha->host,
5739 cmds_max, sizeof(struct ddb_entry),
5740 sizeof(struct ql4_task_data),
5741 initial_cmdsn, INVALID_ENTRY);
5742 if (!cls_sess) {
5743 ret = QLA_ERROR;
5744 goto exit_setup;
5745 }
5746
5747 /*
5748 * so calling module_put function to decrement the
5749 * reference count.
5750 **/
5751 module_put(qla4xxx_iscsi_transport.owner);
5752 sess = cls_sess->dd_data;
5753 ddb_entry = sess->dd_data;
5754 ddb_entry->sess = cls_sess;
5755
5756 cls_sess->recovery_tmo = ql4xsess_recovery_tmo;
5757 memcpy(&ddb_entry->fw_ddb_entry, fw_ddb_entry,
5758 sizeof(struct dev_db_entry));
5759
5760 qla4xxx_setup_flash_ddb_entry(ha, ddb_entry, idx);
5761
5762 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), conn_id);
5763
5764 if (!cls_conn) {
5765 ret = QLA_ERROR;
5766 goto exit_setup;
5767 }
5768
5769 ddb_entry->conn = cls_conn;
5770
5771 /* Setup ep, for displaying attributes in sysfs */
5772 ep = qla4xxx_get_ep_fwdb(ha, fw_ddb_entry);
5773 if (ep) {
5774 ep->conn = cls_conn;
5775 cls_conn->ep = ep;
5776 } else {
5777 DEBUG2(ql4_printk(KERN_ERR, ha, "Unable to get ep\n"));
5778 ret = QLA_ERROR;
5779 goto exit_setup;
5780 }
5781
5782 /* Update sess/conn params */
5783 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn);
5784 qla4xxx_update_sess_disc_idx(ha, ddb_entry, fw_ddb_entry);
5785
5786 if (is_reset == RESET_ADAPTER) {
5787 iscsi_block_session(cls_sess);
5788 /* Use the relogin path to discover new devices
5789 * by short-circuting the logic of setting
5790 * timer to relogin - instead set the flags
5791 * to initiate login right away.
5792 */
5793 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
5794 set_bit(DF_RELOGIN, &ddb_entry->flags);
5795 }
5796
5797 exit_setup:
5798 return ret;
5799 }
5800
5801 static void qla4xxx_update_fw_ddb_link(struct scsi_qla_host *ha,
5802 struct list_head *list_ddb,
5803 struct dev_db_entry *fw_ddb_entry)
5804 {
5805 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
5806 uint16_t ddb_link;
5807
5808 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
5809
5810 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
5811 if (ddb_idx->fw_ddb_idx == ddb_link) {
5812 DEBUG2(ql4_printk(KERN_INFO, ha,
5813 "Updating NT parent idx from [%d] to [%d]\n",
5814 ddb_link, ddb_idx->flash_ddb_idx));
5815 fw_ddb_entry->ddb_link =
5816 cpu_to_le16(ddb_idx->flash_ddb_idx);
5817 return;
5818 }
5819 }
5820 }
5821
5822 static void qla4xxx_build_nt_list(struct scsi_qla_host *ha,
5823 struct list_head *list_nt,
5824 struct list_head *list_st,
5825 int is_reset)
5826 {
5827 struct dev_db_entry *fw_ddb_entry;
5828 struct ddb_entry *ddb_entry = NULL;
5829 dma_addr_t fw_ddb_dma;
5830 int max_ddbs;
5831 int fw_idx_size;
5832 int ret;
5833 uint32_t idx = 0, next_idx = 0;
5834 uint32_t state = 0, conn_err = 0;
5835 uint32_t ddb_idx = -1;
5836 uint16_t conn_id = 0;
5837 uint16_t ddb_link = -1;
5838 struct qla_ddb_index *nt_ddb_idx;
5839
5840 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
5841 &fw_ddb_dma);
5842 if (fw_ddb_entry == NULL) {
5843 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
5844 goto exit_nt_list;
5845 }
5846 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
5847 MAX_DEV_DB_ENTRIES;
5848 fw_idx_size = sizeof(struct qla_ddb_index);
5849
5850 for (idx = 0; idx < max_ddbs; idx = next_idx) {
5851 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
5852 NULL, &next_idx, &state,
5853 &conn_err, NULL, &conn_id);
5854 if (ret == QLA_ERROR)
5855 break;
5856
5857 if (qla4xxx_verify_boot_idx(ha, idx) != QLA_SUCCESS)
5858 goto continue_next_nt;
5859
5860 /* Check if NT, then add to list it */
5861 if (strlen((char *) fw_ddb_entry->iscsi_name) == 0)
5862 goto continue_next_nt;
5863
5864 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
5865 if (ddb_link < max_ddbs)
5866 qla4xxx_update_fw_ddb_link(ha, list_st, fw_ddb_entry);
5867
5868 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE ||
5869 state == DDB_DS_SESSION_FAILED) &&
5870 (is_reset == INIT_ADAPTER))
5871 goto continue_next_nt;
5872
5873 DEBUG2(ql4_printk(KERN_INFO, ha,
5874 "Adding DDB to session = 0x%x\n", idx));
5875
5876 if (is_reset == INIT_ADAPTER) {
5877 nt_ddb_idx = vmalloc(fw_idx_size);
5878 if (!nt_ddb_idx)
5879 break;
5880
5881 nt_ddb_idx->fw_ddb_idx = idx;
5882
5883 /* Copy original isid as it may get updated in function
5884 * qla4xxx_update_isid(). We need original isid in
5885 * function qla4xxx_compare_tuple_ddb to find duplicate
5886 * target */
5887 memcpy(&nt_ddb_idx->flash_isid[0],
5888 &fw_ddb_entry->isid[0],
5889 sizeof(nt_ddb_idx->flash_isid));
5890
5891 ret = qla4xxx_is_flash_ddb_exists(ha, list_nt,
5892 fw_ddb_entry);
5893 if (ret == QLA_SUCCESS) {
5894 /* free nt_ddb_idx and do not add to list_nt */
5895 vfree(nt_ddb_idx);
5896 goto continue_next_nt;
5897 }
5898
5899 /* Copy updated isid */
5900 memcpy(&nt_ddb_idx->fw_ddb, fw_ddb_entry,
5901 sizeof(struct dev_db_entry));
5902
5903 list_add_tail(&nt_ddb_idx->list, list_nt);
5904 } else if (is_reset == RESET_ADAPTER) {
5905 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry,
5906 &ddb_idx);
5907 if (ret == QLA_SUCCESS) {
5908 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha,
5909 ddb_idx);
5910 if (ddb_entry != NULL)
5911 qla4xxx_update_sess_disc_idx(ha,
5912 ddb_entry,
5913 fw_ddb_entry);
5914 goto continue_next_nt;
5915 }
5916 }
5917
5918 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, is_reset, idx);
5919 if (ret == QLA_ERROR)
5920 goto exit_nt_list;
5921
5922 continue_next_nt:
5923 if (next_idx == 0)
5924 break;
5925 }
5926
5927 exit_nt_list:
5928 if (fw_ddb_entry)
5929 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
5930 }
5931
5932 static void qla4xxx_build_new_nt_list(struct scsi_qla_host *ha,
5933 struct list_head *list_nt,
5934 uint16_t target_id)
5935 {
5936 struct dev_db_entry *fw_ddb_entry;
5937 dma_addr_t fw_ddb_dma;
5938 int max_ddbs;
5939 int fw_idx_size;
5940 int ret;
5941 uint32_t idx = 0, next_idx = 0;
5942 uint32_t state = 0, conn_err = 0;
5943 uint16_t conn_id = 0;
5944 struct qla_ddb_index *nt_ddb_idx;
5945
5946 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
5947 &fw_ddb_dma);
5948 if (fw_ddb_entry == NULL) {
5949 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
5950 goto exit_new_nt_list;
5951 }
5952 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
5953 MAX_DEV_DB_ENTRIES;
5954 fw_idx_size = sizeof(struct qla_ddb_index);
5955
5956 for (idx = 0; idx < max_ddbs; idx = next_idx) {
5957 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
5958 NULL, &next_idx, &state,
5959 &conn_err, NULL, &conn_id);
5960 if (ret == QLA_ERROR)
5961 break;
5962
5963 /* Check if NT, then add it to list */
5964 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0)
5965 goto continue_next_new_nt;
5966
5967 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE))
5968 goto continue_next_new_nt;
5969
5970 DEBUG2(ql4_printk(KERN_INFO, ha,
5971 "Adding DDB to session = 0x%x\n", idx));
5972
5973 nt_ddb_idx = vmalloc(fw_idx_size);
5974 if (!nt_ddb_idx)
5975 break;
5976
5977 nt_ddb_idx->fw_ddb_idx = idx;
5978
5979 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL);
5980 if (ret == QLA_SUCCESS) {
5981 /* free nt_ddb_idx and do not add to list_nt */
5982 vfree(nt_ddb_idx);
5983 goto continue_next_new_nt;
5984 }
5985
5986 if (target_id < max_ddbs)
5987 fw_ddb_entry->ddb_link = cpu_to_le16(target_id);
5988
5989 list_add_tail(&nt_ddb_idx->list, list_nt);
5990
5991 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER,
5992 idx);
5993 if (ret == QLA_ERROR)
5994 goto exit_new_nt_list;
5995
5996 continue_next_new_nt:
5997 if (next_idx == 0)
5998 break;
5999 }
6000
6001 exit_new_nt_list:
6002 if (fw_ddb_entry)
6003 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
6004 }
6005
6006 /**
6007 * qla4xxx_sysfs_ddb_is_non_persistent - check for non-persistence of ddb entry
6008 * @dev: dev associated with the sysfs entry
6009 * @data: pointer to flashnode session object
6010 *
6011 * Returns:
6012 * 1: if flashnode entry is non-persistent
6013 * 0: if flashnode entry is persistent
6014 **/
6015 static int qla4xxx_sysfs_ddb_is_non_persistent(struct device *dev, void *data)
6016 {
6017 struct iscsi_bus_flash_session *fnode_sess;
6018
6019 if (!iscsi_flashnode_bus_match(dev, NULL))
6020 return 0;
6021
6022 fnode_sess = iscsi_dev_to_flash_session(dev);
6023
6024 return (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT);
6025 }
6026
6027 /**
6028 * qla4xxx_sysfs_ddb_tgt_create - Create sysfs entry for target
6029 * @ha: pointer to host
6030 * @fw_ddb_entry: flash ddb data
6031 * @idx: target index
6032 * @user: if set then this call is made from userland else from kernel
6033 *
6034 * Returns:
6035 * On sucess: QLA_SUCCESS
6036 * On failure: QLA_ERROR
6037 *
6038 * This create separate sysfs entries for session and connection attributes of
6039 * the given fw ddb entry.
6040 * If this is invoked as a result of a userspace call then the entry is marked
6041 * as nonpersistent using flash_state field.
6042 **/
6043 static int qla4xxx_sysfs_ddb_tgt_create(struct scsi_qla_host *ha,
6044 struct dev_db_entry *fw_ddb_entry,
6045 uint16_t *idx, int user)
6046 {
6047 struct iscsi_bus_flash_session *fnode_sess = NULL;
6048 struct iscsi_bus_flash_conn *fnode_conn = NULL;
6049 int rc = QLA_ERROR;
6050
6051 fnode_sess = iscsi_create_flashnode_sess(ha->host, *idx,
6052 &qla4xxx_iscsi_transport, 0);
6053 if (!fnode_sess) {
6054 ql4_printk(KERN_ERR, ha,
6055 "%s: Unable to create session sysfs entry for flashnode %d of host%lu\n",
6056 __func__, *idx, ha->host_no);
6057 goto exit_tgt_create;
6058 }
6059
6060 fnode_conn = iscsi_create_flashnode_conn(ha->host, fnode_sess,
6061 &qla4xxx_iscsi_transport, 0);
6062 if (!fnode_conn) {
6063 ql4_printk(KERN_ERR, ha,
6064 "%s: Unable to create conn sysfs entry for flashnode %d of host%lu\n",
6065 __func__, *idx, ha->host_no);
6066 goto free_sess;
6067 }
6068
6069 if (user) {
6070 fnode_sess->flash_state = DEV_DB_NON_PERSISTENT;
6071 } else {
6072 fnode_sess->flash_state = DEV_DB_PERSISTENT;
6073
6074 if (*idx == ha->pri_ddb_idx || *idx == ha->sec_ddb_idx)
6075 fnode_sess->is_boot_target = 1;
6076 else
6077 fnode_sess->is_boot_target = 0;
6078 }
6079
6080 rc = qla4xxx_copy_from_fwddb_param(fnode_sess, fnode_conn,
6081 fw_ddb_entry);
6082
6083 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n",
6084 __func__, fnode_sess->dev.kobj.name);
6085
6086 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n",
6087 __func__, fnode_conn->dev.kobj.name);
6088
6089 return QLA_SUCCESS;
6090
6091 free_sess:
6092 iscsi_destroy_flashnode_sess(fnode_sess);
6093
6094 exit_tgt_create:
6095 return QLA_ERROR;
6096 }
6097
6098 /**
6099 * qla4xxx_sysfs_ddb_add - Add new ddb entry in flash
6100 * @shost: pointer to host
6101 * @buf: type of ddb entry (ipv4/ipv6)
6102 * @len: length of buf
6103 *
6104 * This creates new ddb entry in the flash by finding first free index and
6105 * storing default ddb there. And then create sysfs entry for the new ddb entry.
6106 **/
6107 static int qla4xxx_sysfs_ddb_add(struct Scsi_Host *shost, const char *buf,
6108 int len)
6109 {
6110 struct scsi_qla_host *ha = to_qla_host(shost);
6111 struct dev_db_entry *fw_ddb_entry = NULL;
6112 dma_addr_t fw_ddb_entry_dma;
6113 struct device *dev;
6114 uint16_t idx = 0;
6115 uint16_t max_ddbs = 0;
6116 uint32_t options = 0;
6117 uint32_t rval = QLA_ERROR;
6118
6119 if (strncasecmp(PORTAL_TYPE_IPV4, buf, 4) &&
6120 strncasecmp(PORTAL_TYPE_IPV6, buf, 4)) {
6121 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Invalid portal type\n",
6122 __func__));
6123 goto exit_ddb_add;
6124 }
6125
6126 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES :
6127 MAX_DEV_DB_ENTRIES;
6128
6129 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
6130 &fw_ddb_entry_dma, GFP_KERNEL);
6131 if (!fw_ddb_entry) {
6132 DEBUG2(ql4_printk(KERN_ERR, ha,
6133 "%s: Unable to allocate dma buffer\n",
6134 __func__));
6135 goto exit_ddb_add;
6136 }
6137
6138 dev = iscsi_find_flashnode_sess(ha->host, NULL,
6139 qla4xxx_sysfs_ddb_is_non_persistent);
6140 if (dev) {
6141 ql4_printk(KERN_ERR, ha,
6142 "%s: A non-persistent entry %s found\n",
6143 __func__, dev->kobj.name);
6144 put_device(dev);
6145 goto exit_ddb_add;
6146 }
6147
6148 /* Index 0 and 1 are reserved for boot target entries */
6149 for (idx = 2; idx < max_ddbs; idx++) {
6150 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry,
6151 fw_ddb_entry_dma, idx))
6152 break;
6153 }
6154
6155 if (idx == max_ddbs)
6156 goto exit_ddb_add;
6157
6158 if (!strncasecmp("ipv6", buf, 4))
6159 options |= IPV6_DEFAULT_DDB_ENTRY;
6160
6161 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
6162 if (rval == QLA_ERROR)
6163 goto exit_ddb_add;
6164
6165 rval = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 1);
6166
6167 exit_ddb_add:
6168 if (fw_ddb_entry)
6169 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
6170 fw_ddb_entry, fw_ddb_entry_dma);
6171 if (rval == QLA_SUCCESS)
6172 return idx;
6173 else
6174 return -EIO;
6175 }
6176
6177 /**
6178 * qla4xxx_sysfs_ddb_apply - write the target ddb contents to Flash
6179 * @fnode_sess: pointer to session attrs of flash ddb entry
6180 * @fnode_conn: pointer to connection attrs of flash ddb entry
6181 *
6182 * This writes the contents of target ddb buffer to Flash with a valid cookie
6183 * value in order to make the ddb entry persistent.
6184 **/
6185 static int qla4xxx_sysfs_ddb_apply(struct iscsi_bus_flash_session *fnode_sess,
6186 struct iscsi_bus_flash_conn *fnode_conn)
6187 {
6188 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
6189 struct scsi_qla_host *ha = to_qla_host(shost);
6190 uint32_t dev_db_start_offset = FLASH_OFFSET_DB_INFO;
6191 struct dev_db_entry *fw_ddb_entry = NULL;
6192 dma_addr_t fw_ddb_entry_dma;
6193 uint32_t options = 0;
6194 int rval = 0;
6195
6196 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
6197 &fw_ddb_entry_dma, GFP_KERNEL);
6198 if (!fw_ddb_entry) {
6199 DEBUG2(ql4_printk(KERN_ERR, ha,
6200 "%s: Unable to allocate dma buffer\n",
6201 __func__));
6202 rval = -ENOMEM;
6203 goto exit_ddb_apply;
6204 }
6205
6206 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
6207 options |= IPV6_DEFAULT_DDB_ENTRY;
6208
6209 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
6210 if (rval == QLA_ERROR)
6211 goto exit_ddb_apply;
6212
6213 dev_db_start_offset += (fnode_sess->target_id *
6214 sizeof(*fw_ddb_entry));
6215
6216 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry);
6217 fw_ddb_entry->cookie = DDB_VALID_COOKIE;
6218
6219 rval = qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset,
6220 sizeof(*fw_ddb_entry), FLASH_OPT_RMW_COMMIT);
6221
6222 if (rval == QLA_SUCCESS) {
6223 fnode_sess->flash_state = DEV_DB_PERSISTENT;
6224 ql4_printk(KERN_INFO, ha,
6225 "%s: flash node %u of host %lu written to flash\n",
6226 __func__, fnode_sess->target_id, ha->host_no);
6227 } else {
6228 rval = -EIO;
6229 ql4_printk(KERN_ERR, ha,
6230 "%s: Error while writing flash node %u of host %lu to flash\n",
6231 __func__, fnode_sess->target_id, ha->host_no);
6232 }
6233
6234 exit_ddb_apply:
6235 if (fw_ddb_entry)
6236 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
6237 fw_ddb_entry, fw_ddb_entry_dma);
6238 return rval;
6239 }
6240
6241 static ssize_t qla4xxx_sysfs_ddb_conn_open(struct scsi_qla_host *ha,
6242 struct dev_db_entry *fw_ddb_entry,
6243 uint16_t idx)
6244 {
6245 struct dev_db_entry *ddb_entry = NULL;
6246 dma_addr_t ddb_entry_dma;
6247 unsigned long wtime;
6248 uint32_t mbx_sts = 0;
6249 uint32_t state = 0, conn_err = 0;
6250 uint16_t tmo = 0;
6251 int ret = 0;
6252
6253 ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*ddb_entry),
6254 &ddb_entry_dma, GFP_KERNEL);
6255 if (!ddb_entry) {
6256 DEBUG2(ql4_printk(KERN_ERR, ha,
6257 "%s: Unable to allocate dma buffer\n",
6258 __func__));
6259 return QLA_ERROR;
6260 }
6261
6262 memcpy(ddb_entry, fw_ddb_entry, sizeof(*ddb_entry));
6263
6264 ret = qla4xxx_set_ddb_entry(ha, idx, ddb_entry_dma, &mbx_sts);
6265 if (ret != QLA_SUCCESS) {
6266 DEBUG2(ql4_printk(KERN_ERR, ha,
6267 "%s: Unable to set ddb entry for index %d\n",
6268 __func__, idx));
6269 goto exit_ddb_conn_open;
6270 }
6271
6272 qla4xxx_conn_open(ha, idx);
6273
6274 /* To ensure that sendtargets is done, wait for at least 12 secs */
6275 tmo = ((ha->def_timeout > LOGIN_TOV) &&
6276 (ha->def_timeout < LOGIN_TOV * 10) ?
6277 ha->def_timeout : LOGIN_TOV);
6278
6279 DEBUG2(ql4_printk(KERN_INFO, ha,
6280 "Default time to wait for login to ddb %d\n", tmo));
6281
6282 wtime = jiffies + (HZ * tmo);
6283 do {
6284 ret = qla4xxx_get_fwddb_entry(ha, idx, NULL, 0, NULL,
6285 NULL, &state, &conn_err, NULL,
6286 NULL);
6287 if (ret == QLA_ERROR)
6288 continue;
6289
6290 if (state == DDB_DS_NO_CONNECTION_ACTIVE ||
6291 state == DDB_DS_SESSION_FAILED)
6292 break;
6293
6294 schedule_timeout_uninterruptible(HZ / 10);
6295 } while (time_after(wtime, jiffies));
6296
6297 exit_ddb_conn_open:
6298 if (ddb_entry)
6299 dma_free_coherent(&ha->pdev->dev, sizeof(*ddb_entry),
6300 ddb_entry, ddb_entry_dma);
6301 return ret;
6302 }
6303
6304 static int qla4xxx_ddb_login_st(struct scsi_qla_host *ha,
6305 struct dev_db_entry *fw_ddb_entry,
6306 uint16_t target_id)
6307 {
6308 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
6309 struct list_head list_nt;
6310 uint16_t ddb_index;
6311 int ret = 0;
6312
6313 if (test_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags)) {
6314 ql4_printk(KERN_WARNING, ha,
6315 "%s: A discovery already in progress!\n", __func__);
6316 return QLA_ERROR;
6317 }
6318
6319 INIT_LIST_HEAD(&list_nt);
6320
6321 set_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags);
6322
6323 ret = qla4xxx_get_ddb_index(ha, &ddb_index);
6324 if (ret == QLA_ERROR)
6325 goto exit_login_st_clr_bit;
6326
6327 ret = qla4xxx_sysfs_ddb_conn_open(ha, fw_ddb_entry, ddb_index);
6328 if (ret == QLA_ERROR)
6329 goto exit_login_st;
6330
6331 qla4xxx_build_new_nt_list(ha, &list_nt, target_id);
6332
6333 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, &list_nt, list) {
6334 list_del_init(&ddb_idx->list);
6335 qla4xxx_clear_ddb_entry(ha, ddb_idx->fw_ddb_idx);
6336 vfree(ddb_idx);
6337 }
6338
6339 exit_login_st:
6340 if (qla4xxx_clear_ddb_entry(ha, ddb_index) == QLA_ERROR) {
6341 ql4_printk(KERN_ERR, ha,
6342 "Unable to clear DDB index = 0x%x\n", ddb_index);
6343 }
6344
6345 clear_bit(ddb_index, ha->ddb_idx_map);
6346
6347 exit_login_st_clr_bit:
6348 clear_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags);
6349 return ret;
6350 }
6351
6352 static int qla4xxx_ddb_login_nt(struct scsi_qla_host *ha,
6353 struct dev_db_entry *fw_ddb_entry,
6354 uint16_t idx)
6355 {
6356 int ret = QLA_ERROR;
6357
6358 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL);
6359 if (ret != QLA_SUCCESS)
6360 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER,
6361 idx);
6362 else
6363 ret = -EPERM;
6364
6365 return ret;
6366 }
6367
6368 /**
6369 * qla4xxx_sysfs_ddb_login - Login to the specified target
6370 * @fnode_sess: pointer to session attrs of flash ddb entry
6371 * @fnode_conn: pointer to connection attrs of flash ddb entry
6372 *
6373 * This logs in to the specified target
6374 **/
6375 static int qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess,
6376 struct iscsi_bus_flash_conn *fnode_conn)
6377 {
6378 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
6379 struct scsi_qla_host *ha = to_qla_host(shost);
6380 struct dev_db_entry *fw_ddb_entry = NULL;
6381 dma_addr_t fw_ddb_entry_dma;
6382 uint32_t options = 0;
6383 int ret = 0;
6384
6385 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT) {
6386 ql4_printk(KERN_ERR, ha,
6387 "%s: Target info is not persistent\n", __func__);
6388 ret = -EIO;
6389 goto exit_ddb_login;
6390 }
6391
6392 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
6393 &fw_ddb_entry_dma, GFP_KERNEL);
6394 if (!fw_ddb_entry) {
6395 DEBUG2(ql4_printk(KERN_ERR, ha,
6396 "%s: Unable to allocate dma buffer\n",
6397 __func__));
6398 ret = -ENOMEM;
6399 goto exit_ddb_login;
6400 }
6401
6402 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
6403 options |= IPV6_DEFAULT_DDB_ENTRY;
6404
6405 ret = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
6406 if (ret == QLA_ERROR)
6407 goto exit_ddb_login;
6408
6409 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry);
6410 fw_ddb_entry->cookie = DDB_VALID_COOKIE;
6411
6412 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0)
6413 ret = qla4xxx_ddb_login_st(ha, fw_ddb_entry,
6414 fnode_sess->target_id);
6415 else
6416 ret = qla4xxx_ddb_login_nt(ha, fw_ddb_entry,
6417 fnode_sess->target_id);
6418
6419 if (ret > 0)
6420 ret = -EIO;
6421
6422 exit_ddb_login:
6423 if (fw_ddb_entry)
6424 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
6425 fw_ddb_entry, fw_ddb_entry_dma);
6426 return ret;
6427 }
6428
6429 /**
6430 * qla4xxx_sysfs_ddb_logout_sid - Logout session for the specified target
6431 * @cls_sess: pointer to session to be logged out
6432 *
6433 * This performs session log out from the specified target
6434 **/
6435 static int qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess)
6436 {
6437 struct iscsi_session *sess;
6438 struct ddb_entry *ddb_entry = NULL;
6439 struct scsi_qla_host *ha;
6440 struct dev_db_entry *fw_ddb_entry = NULL;
6441 dma_addr_t fw_ddb_entry_dma;
6442 unsigned long flags;
6443 unsigned long wtime;
6444 uint32_t ddb_state;
6445 int options;
6446 int ret = 0;
6447
6448 sess = cls_sess->dd_data;
6449 ddb_entry = sess->dd_data;
6450 ha = ddb_entry->ha;
6451
6452 if (ddb_entry->ddb_type != FLASH_DDB) {
6453 ql4_printk(KERN_ERR, ha, "%s: Not a flash node session\n",
6454 __func__);
6455 ret = -ENXIO;
6456 goto exit_ddb_logout;
6457 }
6458
6459 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) {
6460 ql4_printk(KERN_ERR, ha,
6461 "%s: Logout from boot target entry is not permitted.\n",
6462 __func__);
6463 ret = -EPERM;
6464 goto exit_ddb_logout;
6465 }
6466
6467 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
6468 &fw_ddb_entry_dma, GFP_KERNEL);
6469 if (!fw_ddb_entry) {
6470 ql4_printk(KERN_ERR, ha,
6471 "%s: Unable to allocate dma buffer\n", __func__);
6472 ret = -ENOMEM;
6473 goto exit_ddb_logout;
6474 }
6475
6476 if (test_and_set_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags))
6477 goto ddb_logout_init;
6478
6479 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
6480 fw_ddb_entry, fw_ddb_entry_dma,
6481 NULL, NULL, &ddb_state, NULL,
6482 NULL, NULL);
6483 if (ret == QLA_ERROR)
6484 goto ddb_logout_init;
6485
6486 if (ddb_state == DDB_DS_SESSION_ACTIVE)
6487 goto ddb_logout_init;
6488
6489 /* wait until next relogin is triggered using DF_RELOGIN and
6490 * clear DF_RELOGIN to avoid invocation of further relogin
6491 */
6492 wtime = jiffies + (HZ * RELOGIN_TOV);
6493 do {
6494 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags))
6495 goto ddb_logout_init;
6496
6497 schedule_timeout_uninterruptible(HZ);
6498 } while ((time_after(wtime, jiffies)));
6499
6500 ddb_logout_init:
6501 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY);
6502 atomic_set(&ddb_entry->relogin_timer, 0);
6503
6504 options = LOGOUT_OPTION_CLOSE_SESSION;
6505 qla4xxx_session_logout_ddb(ha, ddb_entry, options);
6506
6507 memset(fw_ddb_entry, 0, sizeof(*fw_ddb_entry));
6508 wtime = jiffies + (HZ * LOGOUT_TOV);
6509 do {
6510 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
6511 fw_ddb_entry, fw_ddb_entry_dma,
6512 NULL, NULL, &ddb_state, NULL,
6513 NULL, NULL);
6514 if (ret == QLA_ERROR)
6515 goto ddb_logout_clr_sess;
6516
6517 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) ||
6518 (ddb_state == DDB_DS_SESSION_FAILED))
6519 goto ddb_logout_clr_sess;
6520
6521 schedule_timeout_uninterruptible(HZ);
6522 } while ((time_after(wtime, jiffies)));
6523
6524 ddb_logout_clr_sess:
6525 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
6526 /*
6527 * we have decremented the reference count of the driver
6528 * when we setup the session to have the driver unload
6529 * to be seamless without actually destroying the
6530 * session
6531 **/
6532 try_module_get(qla4xxx_iscsi_transport.owner);
6533 iscsi_destroy_endpoint(ddb_entry->conn->ep);
6534
6535 spin_lock_irqsave(&ha->hardware_lock, flags);
6536 qla4xxx_free_ddb(ha, ddb_entry);
6537 clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map);
6538 spin_unlock_irqrestore(&ha->hardware_lock, flags);
6539
6540 iscsi_session_teardown(ddb_entry->sess);
6541
6542 clear_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags);
6543 ret = QLA_SUCCESS;
6544
6545 exit_ddb_logout:
6546 if (fw_ddb_entry)
6547 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
6548 fw_ddb_entry, fw_ddb_entry_dma);
6549 return ret;
6550 }
6551
6552 /**
6553 * qla4xxx_sysfs_ddb_logout - Logout from the specified target
6554 * @fnode_sess: pointer to session attrs of flash ddb entry
6555 * @fnode_conn: pointer to connection attrs of flash ddb entry
6556 *
6557 * This performs log out from the specified target
6558 **/
6559 static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess,
6560 struct iscsi_bus_flash_conn *fnode_conn)
6561 {
6562 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
6563 struct scsi_qla_host *ha = to_qla_host(shost);
6564 struct ql4_tuple_ddb *flash_tddb = NULL;
6565 struct ql4_tuple_ddb *tmp_tddb = NULL;
6566 struct dev_db_entry *fw_ddb_entry = NULL;
6567 struct ddb_entry *ddb_entry = NULL;
6568 dma_addr_t fw_ddb_dma;
6569 uint32_t next_idx = 0;
6570 uint32_t state = 0, conn_err = 0;
6571 uint16_t conn_id = 0;
6572 int idx, index;
6573 int status, ret = 0;
6574
6575 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
6576 &fw_ddb_dma);
6577 if (fw_ddb_entry == NULL) {
6578 ql4_printk(KERN_ERR, ha, "%s:Out of memory\n", __func__);
6579 ret = -ENOMEM;
6580 goto exit_ddb_logout;
6581 }
6582
6583 flash_tddb = vzalloc(sizeof(*flash_tddb));
6584 if (!flash_tddb) {
6585 ql4_printk(KERN_WARNING, ha,
6586 "%s:Memory Allocation failed.\n", __func__);
6587 ret = -ENOMEM;
6588 goto exit_ddb_logout;
6589 }
6590
6591 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
6592 if (!tmp_tddb) {
6593 ql4_printk(KERN_WARNING, ha,
6594 "%s:Memory Allocation failed.\n", __func__);
6595 ret = -ENOMEM;
6596 goto exit_ddb_logout;
6597 }
6598
6599 if (!fnode_sess->targetname) {
6600 ql4_printk(KERN_ERR, ha,
6601 "%s:Cannot logout from SendTarget entry\n",
6602 __func__);
6603 ret = -EPERM;
6604 goto exit_ddb_logout;
6605 }
6606
6607 if (fnode_sess->is_boot_target) {
6608 ql4_printk(KERN_ERR, ha,
6609 "%s: Logout from boot target entry is not permitted.\n",
6610 __func__);
6611 ret = -EPERM;
6612 goto exit_ddb_logout;
6613 }
6614
6615 strncpy(flash_tddb->iscsi_name, fnode_sess->targetname,
6616 ISCSI_NAME_SIZE);
6617
6618 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
6619 sprintf(flash_tddb->ip_addr, "%pI6", fnode_conn->ipaddress);
6620 else
6621 sprintf(flash_tddb->ip_addr, "%pI4", fnode_conn->ipaddress);
6622
6623 flash_tddb->tpgt = fnode_sess->tpgt;
6624 flash_tddb->port = fnode_conn->port;
6625
6626 COPY_ISID(flash_tddb->isid, fnode_sess->isid);
6627
6628 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
6629 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
6630 if (ddb_entry == NULL)
6631 continue;
6632
6633 if (ddb_entry->ddb_type != FLASH_DDB)
6634 continue;
6635
6636 index = ddb_entry->sess->target_id;
6637 status = qla4xxx_get_fwddb_entry(ha, index, fw_ddb_entry,
6638 fw_ddb_dma, NULL, &next_idx,
6639 &state, &conn_err, NULL,
6640 &conn_id);
6641 if (status == QLA_ERROR) {
6642 ret = -ENOMEM;
6643 break;
6644 }
6645
6646 qla4xxx_convert_param_ddb(fw_ddb_entry, tmp_tddb, NULL);
6647
6648 status = qla4xxx_compare_tuple_ddb(ha, flash_tddb, tmp_tddb,
6649 true);
6650 if (status == QLA_SUCCESS) {
6651 ret = qla4xxx_sysfs_ddb_logout_sid(ddb_entry->sess);
6652 break;
6653 }
6654 }
6655
6656 if (idx == MAX_DDB_ENTRIES)
6657 ret = -ESRCH;
6658
6659 exit_ddb_logout:
6660 if (flash_tddb)
6661 vfree(flash_tddb);
6662 if (tmp_tddb)
6663 vfree(tmp_tddb);
6664 if (fw_ddb_entry)
6665 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
6666
6667 return ret;
6668 }
6669
6670 static int
6671 qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session *fnode_sess,
6672 int param, char *buf)
6673 {
6674 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
6675 struct scsi_qla_host *ha = to_qla_host(shost);
6676 struct iscsi_bus_flash_conn *fnode_conn;
6677 struct ql4_chap_table chap_tbl;
6678 struct device *dev;
6679 int parent_type;
6680 int rc = 0;
6681
6682 dev = iscsi_find_flashnode_conn(fnode_sess);
6683 if (!dev)
6684 return -EIO;
6685
6686 fnode_conn = iscsi_dev_to_flash_conn(dev);
6687
6688 switch (param) {
6689 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6:
6690 rc = sprintf(buf, "%u\n", fnode_conn->is_fw_assigned_ipv6);
6691 break;
6692 case ISCSI_FLASHNODE_PORTAL_TYPE:
6693 rc = sprintf(buf, "%s\n", fnode_sess->portal_type);
6694 break;
6695 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE:
6696 rc = sprintf(buf, "%u\n", fnode_sess->auto_snd_tgt_disable);
6697 break;
6698 case ISCSI_FLASHNODE_DISCOVERY_SESS:
6699 rc = sprintf(buf, "%u\n", fnode_sess->discovery_sess);
6700 break;
6701 case ISCSI_FLASHNODE_ENTRY_EN:
6702 rc = sprintf(buf, "%u\n", fnode_sess->entry_state);
6703 break;
6704 case ISCSI_FLASHNODE_HDR_DGST_EN:
6705 rc = sprintf(buf, "%u\n", fnode_conn->hdrdgst_en);
6706 break;
6707 case ISCSI_FLASHNODE_DATA_DGST_EN:
6708 rc = sprintf(buf, "%u\n", fnode_conn->datadgst_en);
6709 break;
6710 case ISCSI_FLASHNODE_IMM_DATA_EN:
6711 rc = sprintf(buf, "%u\n", fnode_sess->imm_data_en);
6712 break;
6713 case ISCSI_FLASHNODE_INITIAL_R2T_EN:
6714 rc = sprintf(buf, "%u\n", fnode_sess->initial_r2t_en);
6715 break;
6716 case ISCSI_FLASHNODE_DATASEQ_INORDER:
6717 rc = sprintf(buf, "%u\n", fnode_sess->dataseq_inorder_en);
6718 break;
6719 case ISCSI_FLASHNODE_PDU_INORDER:
6720 rc = sprintf(buf, "%u\n", fnode_sess->pdu_inorder_en);
6721 break;
6722 case ISCSI_FLASHNODE_CHAP_AUTH_EN:
6723 rc = sprintf(buf, "%u\n", fnode_sess->chap_auth_en);
6724 break;
6725 case ISCSI_FLASHNODE_SNACK_REQ_EN:
6726 rc = sprintf(buf, "%u\n", fnode_conn->snack_req_en);
6727 break;
6728 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN:
6729 rc = sprintf(buf, "%u\n", fnode_sess->discovery_logout_en);
6730 break;
6731 case ISCSI_FLASHNODE_BIDI_CHAP_EN:
6732 rc = sprintf(buf, "%u\n", fnode_sess->bidi_chap_en);
6733 break;
6734 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL:
6735 rc = sprintf(buf, "%u\n", fnode_sess->discovery_auth_optional);
6736 break;
6737 case ISCSI_FLASHNODE_ERL:
6738 rc = sprintf(buf, "%u\n", fnode_sess->erl);
6739 break;
6740 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT:
6741 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_stat);
6742 break;
6743 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE:
6744 rc = sprintf(buf, "%u\n", fnode_conn->tcp_nagle_disable);
6745 break;
6746 case ISCSI_FLASHNODE_TCP_WSF_DISABLE:
6747 rc = sprintf(buf, "%u\n", fnode_conn->tcp_wsf_disable);
6748 break;
6749 case ISCSI_FLASHNODE_TCP_TIMER_SCALE:
6750 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timer_scale);
6751 break;
6752 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN:
6753 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_en);
6754 break;
6755 case ISCSI_FLASHNODE_IP_FRAG_DISABLE:
6756 rc = sprintf(buf, "%u\n", fnode_conn->fragment_disable);
6757 break;
6758 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH:
6759 rc = sprintf(buf, "%u\n", fnode_conn->max_recv_dlength);
6760 break;
6761 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH:
6762 rc = sprintf(buf, "%u\n", fnode_conn->max_xmit_dlength);
6763 break;
6764 case ISCSI_FLASHNODE_FIRST_BURST:
6765 rc = sprintf(buf, "%u\n", fnode_sess->first_burst);
6766 break;
6767 case ISCSI_FLASHNODE_DEF_TIME2WAIT:
6768 rc = sprintf(buf, "%u\n", fnode_sess->time2wait);
6769 break;
6770 case ISCSI_FLASHNODE_DEF_TIME2RETAIN:
6771 rc = sprintf(buf, "%u\n", fnode_sess->time2retain);
6772 break;
6773 case ISCSI_FLASHNODE_MAX_R2T:
6774 rc = sprintf(buf, "%u\n", fnode_sess->max_r2t);
6775 break;
6776 case ISCSI_FLASHNODE_KEEPALIVE_TMO:
6777 rc = sprintf(buf, "%u\n", fnode_conn->keepalive_timeout);
6778 break;
6779 case ISCSI_FLASHNODE_ISID:
6780 rc = sprintf(buf, "%02x%02x%02x%02x%02x%02x\n",
6781 fnode_sess->isid[0], fnode_sess->isid[1],
6782 fnode_sess->isid[2], fnode_sess->isid[3],
6783 fnode_sess->isid[4], fnode_sess->isid[5]);
6784 break;
6785 case ISCSI_FLASHNODE_TSID:
6786 rc = sprintf(buf, "%u\n", fnode_sess->tsid);
6787 break;
6788 case ISCSI_FLASHNODE_PORT:
6789 rc = sprintf(buf, "%d\n", fnode_conn->port);
6790 break;
6791 case ISCSI_FLASHNODE_MAX_BURST:
6792 rc = sprintf(buf, "%u\n", fnode_sess->max_burst);
6793 break;
6794 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO:
6795 rc = sprintf(buf, "%u\n",
6796 fnode_sess->default_taskmgmt_timeout);
6797 break;
6798 case ISCSI_FLASHNODE_IPADDR:
6799 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
6800 rc = sprintf(buf, "%pI6\n", fnode_conn->ipaddress);
6801 else
6802 rc = sprintf(buf, "%pI4\n", fnode_conn->ipaddress);
6803 break;
6804 case ISCSI_FLASHNODE_ALIAS:
6805 if (fnode_sess->targetalias)
6806 rc = sprintf(buf, "%s\n", fnode_sess->targetalias);
6807 else
6808 rc = sprintf(buf, "\n");
6809 break;
6810 case ISCSI_FLASHNODE_REDIRECT_IPADDR:
6811 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
6812 rc = sprintf(buf, "%pI6\n",
6813 fnode_conn->redirect_ipaddr);
6814 else
6815 rc = sprintf(buf, "%pI4\n",
6816 fnode_conn->redirect_ipaddr);
6817 break;
6818 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE:
6819 rc = sprintf(buf, "%u\n", fnode_conn->max_segment_size);
6820 break;
6821 case ISCSI_FLASHNODE_LOCAL_PORT:
6822 rc = sprintf(buf, "%u\n", fnode_conn->local_port);
6823 break;
6824 case ISCSI_FLASHNODE_IPV4_TOS:
6825 rc = sprintf(buf, "%u\n", fnode_conn->ipv4_tos);
6826 break;
6827 case ISCSI_FLASHNODE_IPV6_TC:
6828 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
6829 rc = sprintf(buf, "%u\n",
6830 fnode_conn->ipv6_traffic_class);
6831 else
6832 rc = sprintf(buf, "\n");
6833 break;
6834 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL:
6835 rc = sprintf(buf, "%u\n", fnode_conn->ipv6_flow_label);
6836 break;
6837 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6:
6838 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
6839 rc = sprintf(buf, "%pI6\n",
6840 fnode_conn->link_local_ipv6_addr);
6841 else
6842 rc = sprintf(buf, "\n");
6843 break;
6844 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX:
6845 rc = sprintf(buf, "%u\n", fnode_sess->discovery_parent_idx);
6846 break;
6847 case ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE:
6848 if (fnode_sess->discovery_parent_type == DDB_ISNS)
6849 parent_type = ISCSI_DISC_PARENT_ISNS;
6850 else if (fnode_sess->discovery_parent_type == DDB_NO_LINK)
6851 parent_type = ISCSI_DISC_PARENT_UNKNOWN;
6852 else if (fnode_sess->discovery_parent_type < MAX_DDB_ENTRIES)
6853 parent_type = ISCSI_DISC_PARENT_SENDTGT;
6854 else
6855 parent_type = ISCSI_DISC_PARENT_UNKNOWN;
6856
6857 rc = sprintf(buf, "%s\n",
6858 iscsi_get_discovery_parent_name(parent_type));
6859 break;
6860 case ISCSI_FLASHNODE_NAME:
6861 if (fnode_sess->targetname)
6862 rc = sprintf(buf, "%s\n", fnode_sess->targetname);
6863 else
6864 rc = sprintf(buf, "\n");
6865 break;
6866 case ISCSI_FLASHNODE_TPGT:
6867 rc = sprintf(buf, "%u\n", fnode_sess->tpgt);
6868 break;
6869 case ISCSI_FLASHNODE_TCP_XMIT_WSF:
6870 rc = sprintf(buf, "%u\n", fnode_conn->tcp_xmit_wsf);
6871 break;
6872 case ISCSI_FLASHNODE_TCP_RECV_WSF:
6873 rc = sprintf(buf, "%u\n", fnode_conn->tcp_recv_wsf);
6874 break;
6875 case ISCSI_FLASHNODE_CHAP_OUT_IDX:
6876 rc = sprintf(buf, "%u\n", fnode_sess->chap_out_idx);
6877 break;
6878 case ISCSI_FLASHNODE_USERNAME:
6879 if (fnode_sess->chap_auth_en) {
6880 qla4xxx_get_uni_chap_at_index(ha,
6881 chap_tbl.name,
6882 chap_tbl.secret,
6883 fnode_sess->chap_out_idx);
6884 rc = sprintf(buf, "%s\n", chap_tbl.name);
6885 } else {
6886 rc = sprintf(buf, "\n");
6887 }
6888 break;
6889 case ISCSI_FLASHNODE_PASSWORD:
6890 if (fnode_sess->chap_auth_en) {
6891 qla4xxx_get_uni_chap_at_index(ha,
6892 chap_tbl.name,
6893 chap_tbl.secret,
6894 fnode_sess->chap_out_idx);
6895 rc = sprintf(buf, "%s\n", chap_tbl.secret);
6896 } else {
6897 rc = sprintf(buf, "\n");
6898 }
6899 break;
6900 case ISCSI_FLASHNODE_STATSN:
6901 rc = sprintf(buf, "%u\n", fnode_conn->statsn);
6902 break;
6903 case ISCSI_FLASHNODE_EXP_STATSN:
6904 rc = sprintf(buf, "%u\n", fnode_conn->exp_statsn);
6905 break;
6906 case ISCSI_FLASHNODE_IS_BOOT_TGT:
6907 rc = sprintf(buf, "%u\n", fnode_sess->is_boot_target);
6908 break;
6909 default:
6910 rc = -ENOSYS;
6911 break;
6912 }
6913
6914 put_device(dev);
6915 return rc;
6916 }
6917
6918 /**
6919 * qla4xxx_sysfs_ddb_set_param - Set parameter for firmware DDB entry
6920 * @fnode_sess: pointer to session attrs of flash ddb entry
6921 * @fnode_conn: pointer to connection attrs of flash ddb entry
6922 * @data: Parameters and their values to update
6923 * @len: len of data
6924 *
6925 * This sets the parameter of flash ddb entry and writes them to flash
6926 **/
6927 static int
6928 qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess,
6929 struct iscsi_bus_flash_conn *fnode_conn,
6930 void *data, int len)
6931 {
6932 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
6933 struct scsi_qla_host *ha = to_qla_host(shost);
6934 struct iscsi_flashnode_param_info *fnode_param;
6935 struct ql4_chap_table chap_tbl;
6936 struct nlattr *attr;
6937 uint16_t chap_out_idx = INVALID_ENTRY;
6938 int rc = QLA_ERROR;
6939 uint32_t rem = len;
6940
6941 memset((void *)&chap_tbl, 0, sizeof(chap_tbl));
6942 nla_for_each_attr(attr, data, len, rem) {
6943 fnode_param = nla_data(attr);
6944
6945 switch (fnode_param->param) {
6946 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6:
6947 fnode_conn->is_fw_assigned_ipv6 = fnode_param->value[0];
6948 break;
6949 case ISCSI_FLASHNODE_PORTAL_TYPE:
6950 memcpy(fnode_sess->portal_type, fnode_param->value,
6951 strlen(fnode_sess->portal_type));
6952 break;
6953 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE:
6954 fnode_sess->auto_snd_tgt_disable =
6955 fnode_param->value[0];
6956 break;
6957 case ISCSI_FLASHNODE_DISCOVERY_SESS:
6958 fnode_sess->discovery_sess = fnode_param->value[0];
6959 break;
6960 case ISCSI_FLASHNODE_ENTRY_EN:
6961 fnode_sess->entry_state = fnode_param->value[0];
6962 break;
6963 case ISCSI_FLASHNODE_HDR_DGST_EN:
6964 fnode_conn->hdrdgst_en = fnode_param->value[0];
6965 break;
6966 case ISCSI_FLASHNODE_DATA_DGST_EN:
6967 fnode_conn->datadgst_en = fnode_param->value[0];
6968 break;
6969 case ISCSI_FLASHNODE_IMM_DATA_EN:
6970 fnode_sess->imm_data_en = fnode_param->value[0];
6971 break;
6972 case ISCSI_FLASHNODE_INITIAL_R2T_EN:
6973 fnode_sess->initial_r2t_en = fnode_param->value[0];
6974 break;
6975 case ISCSI_FLASHNODE_DATASEQ_INORDER:
6976 fnode_sess->dataseq_inorder_en = fnode_param->value[0];
6977 break;
6978 case ISCSI_FLASHNODE_PDU_INORDER:
6979 fnode_sess->pdu_inorder_en = fnode_param->value[0];
6980 break;
6981 case ISCSI_FLASHNODE_CHAP_AUTH_EN:
6982 fnode_sess->chap_auth_en = fnode_param->value[0];
6983 /* Invalidate chap index if chap auth is disabled */
6984 if (!fnode_sess->chap_auth_en)
6985 fnode_sess->chap_out_idx = INVALID_ENTRY;
6986
6987 break;
6988 case ISCSI_FLASHNODE_SNACK_REQ_EN:
6989 fnode_conn->snack_req_en = fnode_param->value[0];
6990 break;
6991 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN:
6992 fnode_sess->discovery_logout_en = fnode_param->value[0];
6993 break;
6994 case ISCSI_FLASHNODE_BIDI_CHAP_EN:
6995 fnode_sess->bidi_chap_en = fnode_param->value[0];
6996 break;
6997 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL:
6998 fnode_sess->discovery_auth_optional =
6999 fnode_param->value[0];
7000 break;
7001 case ISCSI_FLASHNODE_ERL:
7002 fnode_sess->erl = fnode_param->value[0];
7003 break;
7004 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT:
7005 fnode_conn->tcp_timestamp_stat = fnode_param->value[0];
7006 break;
7007 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE:
7008 fnode_conn->tcp_nagle_disable = fnode_param->value[0];
7009 break;
7010 case ISCSI_FLASHNODE_TCP_WSF_DISABLE:
7011 fnode_conn->tcp_wsf_disable = fnode_param->value[0];
7012 break;
7013 case ISCSI_FLASHNODE_TCP_TIMER_SCALE:
7014 fnode_conn->tcp_timer_scale = fnode_param->value[0];
7015 break;
7016 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN:
7017 fnode_conn->tcp_timestamp_en = fnode_param->value[0];
7018 break;
7019 case ISCSI_FLASHNODE_IP_FRAG_DISABLE:
7020 fnode_conn->fragment_disable = fnode_param->value[0];
7021 break;
7022 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH:
7023 fnode_conn->max_recv_dlength =
7024 *(unsigned *)fnode_param->value;
7025 break;
7026 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH:
7027 fnode_conn->max_xmit_dlength =
7028 *(unsigned *)fnode_param->value;
7029 break;
7030 case ISCSI_FLASHNODE_FIRST_BURST:
7031 fnode_sess->first_burst =
7032 *(unsigned *)fnode_param->value;
7033 break;
7034 case ISCSI_FLASHNODE_DEF_TIME2WAIT:
7035 fnode_sess->time2wait = *(uint16_t *)fnode_param->value;
7036 break;
7037 case ISCSI_FLASHNODE_DEF_TIME2RETAIN:
7038 fnode_sess->time2retain =
7039 *(uint16_t *)fnode_param->value;
7040 break;
7041 case ISCSI_FLASHNODE_MAX_R2T:
7042 fnode_sess->max_r2t =
7043 *(uint16_t *)fnode_param->value;
7044 break;
7045 case ISCSI_FLASHNODE_KEEPALIVE_TMO:
7046 fnode_conn->keepalive_timeout =
7047 *(uint16_t *)fnode_param->value;
7048 break;
7049 case ISCSI_FLASHNODE_ISID:
7050 memcpy(fnode_sess->isid, fnode_param->value,
7051 sizeof(fnode_sess->isid));
7052 break;
7053 case ISCSI_FLASHNODE_TSID:
7054 fnode_sess->tsid = *(uint16_t *)fnode_param->value;
7055 break;
7056 case ISCSI_FLASHNODE_PORT:
7057 fnode_conn->port = *(uint16_t *)fnode_param->value;
7058 break;
7059 case ISCSI_FLASHNODE_MAX_BURST:
7060 fnode_sess->max_burst = *(unsigned *)fnode_param->value;
7061 break;
7062 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO:
7063 fnode_sess->default_taskmgmt_timeout =
7064 *(uint16_t *)fnode_param->value;
7065 break;
7066 case ISCSI_FLASHNODE_IPADDR:
7067 memcpy(fnode_conn->ipaddress, fnode_param->value,
7068 IPv6_ADDR_LEN);
7069 break;
7070 case ISCSI_FLASHNODE_ALIAS:
7071 rc = iscsi_switch_str_param(&fnode_sess->targetalias,
7072 (char *)fnode_param->value);
7073 break;
7074 case ISCSI_FLASHNODE_REDIRECT_IPADDR:
7075 memcpy(fnode_conn->redirect_ipaddr, fnode_param->value,
7076 IPv6_ADDR_LEN);
7077 break;
7078 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE:
7079 fnode_conn->max_segment_size =
7080 *(unsigned *)fnode_param->value;
7081 break;
7082 case ISCSI_FLASHNODE_LOCAL_PORT:
7083 fnode_conn->local_port =
7084 *(uint16_t *)fnode_param->value;
7085 break;
7086 case ISCSI_FLASHNODE_IPV4_TOS:
7087 fnode_conn->ipv4_tos = fnode_param->value[0];
7088 break;
7089 case ISCSI_FLASHNODE_IPV6_TC:
7090 fnode_conn->ipv6_traffic_class = fnode_param->value[0];
7091 break;
7092 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL:
7093 fnode_conn->ipv6_flow_label = fnode_param->value[0];
7094 break;
7095 case ISCSI_FLASHNODE_NAME:
7096 rc = iscsi_switch_str_param(&fnode_sess->targetname,
7097 (char *)fnode_param->value);
7098 break;
7099 case ISCSI_FLASHNODE_TPGT:
7100 fnode_sess->tpgt = *(uint16_t *)fnode_param->value;
7101 break;
7102 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6:
7103 memcpy(fnode_conn->link_local_ipv6_addr,
7104 fnode_param->value, IPv6_ADDR_LEN);
7105 break;
7106 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX:
7107 fnode_sess->discovery_parent_idx =
7108 *(uint16_t *)fnode_param->value;
7109 break;
7110 case ISCSI_FLASHNODE_TCP_XMIT_WSF:
7111 fnode_conn->tcp_xmit_wsf =
7112 *(uint8_t *)fnode_param->value;
7113 break;
7114 case ISCSI_FLASHNODE_TCP_RECV_WSF:
7115 fnode_conn->tcp_recv_wsf =
7116 *(uint8_t *)fnode_param->value;
7117 break;
7118 case ISCSI_FLASHNODE_STATSN:
7119 fnode_conn->statsn = *(uint32_t *)fnode_param->value;
7120 break;
7121 case ISCSI_FLASHNODE_EXP_STATSN:
7122 fnode_conn->exp_statsn =
7123 *(uint32_t *)fnode_param->value;
7124 break;
7125 case ISCSI_FLASHNODE_CHAP_OUT_IDX:
7126 chap_out_idx = *(uint16_t *)fnode_param->value;
7127 if (!qla4xxx_get_uni_chap_at_index(ha,
7128 chap_tbl.name,
7129 chap_tbl.secret,
7130 chap_out_idx)) {
7131 fnode_sess->chap_out_idx = chap_out_idx;
7132 /* Enable chap auth if chap index is valid */
7133 fnode_sess->chap_auth_en = QL4_PARAM_ENABLE;
7134 }
7135 break;
7136 default:
7137 ql4_printk(KERN_ERR, ha,
7138 "%s: No such sysfs attribute\n", __func__);
7139 rc = -ENOSYS;
7140 goto exit_set_param;
7141 }
7142 }
7143
7144 rc = qla4xxx_sysfs_ddb_apply(fnode_sess, fnode_conn);
7145
7146 exit_set_param:
7147 return rc;
7148 }
7149
7150 /**
7151 * qla4xxx_sysfs_ddb_delete - Delete firmware DDB entry
7152 * @fnode_sess: pointer to session attrs of flash ddb entry
7153 *
7154 * This invalidates the flash ddb entry at the given index
7155 **/
7156 static int qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess)
7157 {
7158 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7159 struct scsi_qla_host *ha = to_qla_host(shost);
7160 uint32_t dev_db_start_offset;
7161 uint32_t dev_db_end_offset;
7162 struct dev_db_entry *fw_ddb_entry = NULL;
7163 dma_addr_t fw_ddb_entry_dma;
7164 uint16_t *ddb_cookie = NULL;
7165 size_t ddb_size = 0;
7166 void *pddb = NULL;
7167 int target_id;
7168 int rc = 0;
7169
7170 if (fnode_sess->is_boot_target) {
7171 rc = -EPERM;
7172 DEBUG2(ql4_printk(KERN_ERR, ha,
7173 "%s: Deletion of boot target entry is not permitted.\n",
7174 __func__));
7175 goto exit_ddb_del;
7176 }
7177
7178 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT)
7179 goto sysfs_ddb_del;
7180
7181 if (is_qla40XX(ha)) {
7182 dev_db_start_offset = FLASH_OFFSET_DB_INFO;
7183 dev_db_end_offset = FLASH_OFFSET_DB_END;
7184 dev_db_start_offset += (fnode_sess->target_id *
7185 sizeof(*fw_ddb_entry));
7186 ddb_size = sizeof(*fw_ddb_entry);
7187 } else {
7188 dev_db_start_offset = FLASH_RAW_ACCESS_ADDR +
7189 (ha->hw.flt_region_ddb << 2);
7190 /* flt_ddb_size is DDB table size for both ports
7191 * so divide it by 2 to calculate the offset for second port
7192 */
7193 if (ha->port_num == 1)
7194 dev_db_start_offset += (ha->hw.flt_ddb_size / 2);
7195
7196 dev_db_end_offset = dev_db_start_offset +
7197 (ha->hw.flt_ddb_size / 2);
7198
7199 dev_db_start_offset += (fnode_sess->target_id *
7200 sizeof(*fw_ddb_entry));
7201 dev_db_start_offset += offsetof(struct dev_db_entry, cookie);
7202
7203 ddb_size = sizeof(*ddb_cookie);
7204 }
7205
7206 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: start offset=%u, end offset=%u\n",
7207 __func__, dev_db_start_offset, dev_db_end_offset));
7208
7209 if (dev_db_start_offset > dev_db_end_offset) {
7210 rc = -EIO;
7211 DEBUG2(ql4_printk(KERN_ERR, ha, "%s:Invalid DDB index %u\n",
7212 __func__, fnode_sess->target_id));
7213 goto exit_ddb_del;
7214 }
7215
7216 pddb = dma_alloc_coherent(&ha->pdev->dev, ddb_size,
7217 &fw_ddb_entry_dma, GFP_KERNEL);
7218 if (!pddb) {
7219 rc = -ENOMEM;
7220 DEBUG2(ql4_printk(KERN_ERR, ha,
7221 "%s: Unable to allocate dma buffer\n",
7222 __func__));
7223 goto exit_ddb_del;
7224 }
7225
7226 if (is_qla40XX(ha)) {
7227 fw_ddb_entry = pddb;
7228 memset(fw_ddb_entry, 0, ddb_size);
7229 ddb_cookie = &fw_ddb_entry->cookie;
7230 } else {
7231 ddb_cookie = pddb;
7232 }
7233
7234 /* invalidate the cookie */
7235 *ddb_cookie = 0xFFEE;
7236 qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset,
7237 ddb_size, FLASH_OPT_RMW_COMMIT);
7238
7239 sysfs_ddb_del:
7240 target_id = fnode_sess->target_id;
7241 iscsi_destroy_flashnode_sess(fnode_sess);
7242 ql4_printk(KERN_INFO, ha,
7243 "%s: session and conn entries for flashnode %u of host %lu deleted\n",
7244 __func__, target_id, ha->host_no);
7245 exit_ddb_del:
7246 if (pddb)
7247 dma_free_coherent(&ha->pdev->dev, ddb_size, pddb,
7248 fw_ddb_entry_dma);
7249 return rc;
7250 }
7251
7252 /**
7253 * qla4xxx_sysfs_ddb_export - Create sysfs entries for firmware DDBs
7254 * @ha: pointer to adapter structure
7255 *
7256 * Export the firmware DDB for all send targets and normal targets to sysfs.
7257 **/
7258 static int qla4xxx_sysfs_ddb_export(struct scsi_qla_host *ha)
7259 {
7260 struct dev_db_entry *fw_ddb_entry = NULL;
7261 dma_addr_t fw_ddb_entry_dma;
7262 uint16_t max_ddbs;
7263 uint16_t idx = 0;
7264 int ret = QLA_SUCCESS;
7265
7266 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev,
7267 sizeof(*fw_ddb_entry),
7268 &fw_ddb_entry_dma, GFP_KERNEL);
7269 if (!fw_ddb_entry) {
7270 DEBUG2(ql4_printk(KERN_ERR, ha,
7271 "%s: Unable to allocate dma buffer\n",
7272 __func__));
7273 return -ENOMEM;
7274 }
7275
7276 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES :
7277 MAX_DEV_DB_ENTRIES;
7278
7279 for (idx = 0; idx < max_ddbs; idx++) {
7280 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry, fw_ddb_entry_dma,
7281 idx))
7282 continue;
7283
7284 ret = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 0);
7285 if (ret) {
7286 ret = -EIO;
7287 break;
7288 }
7289 }
7290
7291 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry,
7292 fw_ddb_entry_dma);
7293
7294 return ret;
7295 }
7296
7297 static void qla4xxx_sysfs_ddb_remove(struct scsi_qla_host *ha)
7298 {
7299 iscsi_destroy_all_flashnode(ha->host);
7300 }
7301
7302 /**
7303 * qla4xxx_build_ddb_list - Build ddb list and setup sessions
7304 * @ha: pointer to adapter structure
7305 * @is_reset: Is this init path or reset path
7306 *
7307 * Create a list of sendtargets (st) from firmware DDBs, issue send targets
7308 * using connection open, then create the list of normal targets (nt)
7309 * from firmware DDBs. Based on the list of nt setup session and connection
7310 * objects.
7311 **/
7312 void qla4xxx_build_ddb_list(struct scsi_qla_host *ha, int is_reset)
7313 {
7314 uint16_t tmo = 0;
7315 struct list_head list_st, list_nt;
7316 struct qla_ddb_index *st_ddb_idx, *st_ddb_idx_tmp;
7317 unsigned long wtime;
7318
7319 if (!test_bit(AF_LINK_UP, &ha->flags)) {
7320 set_bit(AF_BUILD_DDB_LIST, &ha->flags);
7321 ha->is_reset = is_reset;
7322 return;
7323 }
7324
7325 INIT_LIST_HEAD(&list_st);
7326 INIT_LIST_HEAD(&list_nt);
7327
7328 qla4xxx_build_st_list(ha, &list_st);
7329
7330 /* Before issuing conn open mbox, ensure all IPs states are configured
7331 * Note, conn open fails if IPs are not configured
7332 */
7333 qla4xxx_wait_for_ip_configuration(ha);
7334
7335 /* Go thru the STs and fire the sendtargets by issuing conn open mbx */
7336 list_for_each_entry_safe(st_ddb_idx, st_ddb_idx_tmp, &list_st, list) {
7337 qla4xxx_conn_open(ha, st_ddb_idx->fw_ddb_idx);
7338 }
7339
7340 /* Wait to ensure all sendtargets are done for min 12 sec wait */
7341 tmo = ((ha->def_timeout > LOGIN_TOV) &&
7342 (ha->def_timeout < LOGIN_TOV * 10) ?
7343 ha->def_timeout : LOGIN_TOV);
7344
7345 DEBUG2(ql4_printk(KERN_INFO, ha,
7346 "Default time to wait for build ddb %d\n", tmo));
7347
7348 wtime = jiffies + (HZ * tmo);
7349 do {
7350 if (list_empty(&list_st))
7351 break;
7352
7353 qla4xxx_remove_failed_ddb(ha, &list_st);
7354 schedule_timeout_uninterruptible(HZ / 10);
7355 } while (time_after(wtime, jiffies));
7356
7357
7358 qla4xxx_build_nt_list(ha, &list_nt, &list_st, is_reset);
7359
7360 qla4xxx_free_ddb_list(&list_st);
7361 qla4xxx_free_ddb_list(&list_nt);
7362
7363 qla4xxx_free_ddb_index(ha);
7364 }
7365
7366 /**
7367 * qla4xxx_wait_login_resp_boot_tgt - Wait for iSCSI boot target login
7368 * response.
7369 * @ha: pointer to adapter structure
7370 *
7371 * When the boot entry is normal iSCSI target then DF_BOOT_TGT flag will be
7372 * set in DDB and we will wait for login response of boot targets during
7373 * probe.
7374 **/
7375 static void qla4xxx_wait_login_resp_boot_tgt(struct scsi_qla_host *ha)
7376 {
7377 struct ddb_entry *ddb_entry;
7378 struct dev_db_entry *fw_ddb_entry = NULL;
7379 dma_addr_t fw_ddb_entry_dma;
7380 unsigned long wtime;
7381 uint32_t ddb_state;
7382 int max_ddbs, idx, ret;
7383
7384 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
7385 MAX_DEV_DB_ENTRIES;
7386
7387 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7388 &fw_ddb_entry_dma, GFP_KERNEL);
7389 if (!fw_ddb_entry) {
7390 ql4_printk(KERN_ERR, ha,
7391 "%s: Unable to allocate dma buffer\n", __func__);
7392 goto exit_login_resp;
7393 }
7394
7395 wtime = jiffies + (HZ * BOOT_LOGIN_RESP_TOV);
7396
7397 for (idx = 0; idx < max_ddbs; idx++) {
7398 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
7399 if (ddb_entry == NULL)
7400 continue;
7401
7402 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) {
7403 DEBUG2(ql4_printk(KERN_INFO, ha,
7404 "%s: DDB index [%d]\n", __func__,
7405 ddb_entry->fw_ddb_index));
7406 do {
7407 ret = qla4xxx_get_fwddb_entry(ha,
7408 ddb_entry->fw_ddb_index,
7409 fw_ddb_entry, fw_ddb_entry_dma,
7410 NULL, NULL, &ddb_state, NULL,
7411 NULL, NULL);
7412 if (ret == QLA_ERROR)
7413 goto exit_login_resp;
7414
7415 if ((ddb_state == DDB_DS_SESSION_ACTIVE) ||
7416 (ddb_state == DDB_DS_SESSION_FAILED))
7417 break;
7418
7419 schedule_timeout_uninterruptible(HZ);
7420
7421 } while ((time_after(wtime, jiffies)));
7422
7423 if (!time_after(wtime, jiffies)) {
7424 DEBUG2(ql4_printk(KERN_INFO, ha,
7425 "%s: Login response wait timer expired\n",
7426 __func__));
7427 goto exit_login_resp;
7428 }
7429 }
7430 }
7431
7432 exit_login_resp:
7433 if (fw_ddb_entry)
7434 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7435 fw_ddb_entry, fw_ddb_entry_dma);
7436 }
7437
7438 /**
7439 * qla4xxx_probe_adapter - callback function to probe HBA
7440 * @pdev: pointer to pci_dev structure
7441 * @pci_device_id: pointer to pci_device entry
7442 *
7443 * This routine will probe for Qlogic 4xxx iSCSI host adapters.
7444 * It returns zero if successful. It also initializes all data necessary for
7445 * the driver.
7446 **/
7447 static int qla4xxx_probe_adapter(struct pci_dev *pdev,
7448 const struct pci_device_id *ent)
7449 {
7450 int ret = -ENODEV, status;
7451 struct Scsi_Host *host;
7452 struct scsi_qla_host *ha;
7453 uint8_t init_retry_count = 0;
7454 char buf[34];
7455 struct qla4_8xxx_legacy_intr_set *nx_legacy_intr;
7456 uint32_t dev_state;
7457
7458 if (pci_enable_device(pdev))
7459 return -1;
7460
7461 host = iscsi_host_alloc(&qla4xxx_driver_template, sizeof(*ha), 0);
7462 if (host == NULL) {
7463 printk(KERN_WARNING
7464 "qla4xxx: Couldn't allocate host from scsi layer!\n");
7465 goto probe_disable_device;
7466 }
7467
7468 /* Clear our data area */
7469 ha = to_qla_host(host);
7470 memset(ha, 0, sizeof(*ha));
7471
7472 /* Save the information from PCI BIOS. */
7473 ha->pdev = pdev;
7474 ha->host = host;
7475 ha->host_no = host->host_no;
7476 ha->func_num = PCI_FUNC(ha->pdev->devfn);
7477
7478 pci_enable_pcie_error_reporting(pdev);
7479
7480 /* Setup Runtime configurable options */
7481 if (is_qla8022(ha)) {
7482 ha->isp_ops = &qla4_82xx_isp_ops;
7483 ha->reg_tbl = (uint32_t *) qla4_82xx_reg_tbl;
7484 ha->qdr_sn_window = -1;
7485 ha->ddr_mn_window = -1;
7486 ha->curr_window = 255;
7487 nx_legacy_intr = &legacy_intr[ha->func_num];
7488 ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit;
7489 ha->nx_legacy_intr.tgt_status_reg =
7490 nx_legacy_intr->tgt_status_reg;
7491 ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg;
7492 ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg;
7493 } else if (is_qla8032(ha) || is_qla8042(ha)) {
7494 ha->isp_ops = &qla4_83xx_isp_ops;
7495 ha->reg_tbl = (uint32_t *)qla4_83xx_reg_tbl;
7496 } else {
7497 ha->isp_ops = &qla4xxx_isp_ops;
7498 }
7499
7500 if (is_qla80XX(ha)) {
7501 rwlock_init(&ha->hw_lock);
7502 ha->pf_bit = ha->func_num << 16;
7503 /* Set EEH reset type to fundamental if required by hba */
7504 pdev->needs_freset = 1;
7505 }
7506
7507 /* Configure PCI I/O space. */
7508 ret = ha->isp_ops->iospace_config(ha);
7509 if (ret)
7510 goto probe_failed_ioconfig;
7511
7512 ql4_printk(KERN_INFO, ha, "Found an ISP%04x, irq %d, iobase 0x%p\n",
7513 pdev->device, pdev->irq, ha->reg);
7514
7515 qla4xxx_config_dma_addressing(ha);
7516
7517 /* Initialize lists and spinlocks. */
7518 INIT_LIST_HEAD(&ha->free_srb_q);
7519
7520 mutex_init(&ha->mbox_sem);
7521 mutex_init(&ha->chap_sem);
7522 init_completion(&ha->mbx_intr_comp);
7523 init_completion(&ha->disable_acb_comp);
7524
7525 spin_lock_init(&ha->hardware_lock);
7526 spin_lock_init(&ha->work_lock);
7527
7528 /* Initialize work list */
7529 INIT_LIST_HEAD(&ha->work_list);
7530
7531 /* Allocate dma buffers */
7532 if (qla4xxx_mem_alloc(ha)) {
7533 ql4_printk(KERN_WARNING, ha,
7534 "[ERROR] Failed to allocate memory for adapter\n");
7535
7536 ret = -ENOMEM;
7537 goto probe_failed;
7538 }
7539
7540 host->cmd_per_lun = 3;
7541 host->max_channel = 0;
7542 host->max_lun = MAX_LUNS - 1;
7543 host->max_id = MAX_TARGETS;
7544 host->max_cmd_len = IOCB_MAX_CDB_LEN;
7545 host->can_queue = MAX_SRBS ;
7546 host->transportt = qla4xxx_scsi_transport;
7547
7548 ret = scsi_init_shared_tag_map(host, MAX_SRBS);
7549 if (ret) {
7550 ql4_printk(KERN_WARNING, ha,
7551 "%s: scsi_init_shared_tag_map failed\n", __func__);
7552 goto probe_failed;
7553 }
7554
7555 pci_set_drvdata(pdev, ha);
7556
7557 ret = scsi_add_host(host, &pdev->dev);
7558 if (ret)
7559 goto probe_failed;
7560
7561 if (is_qla80XX(ha))
7562 qla4_8xxx_get_flash_info(ha);
7563
7564 if (is_qla8032(ha) || is_qla8042(ha)) {
7565 qla4_83xx_read_reset_template(ha);
7566 /*
7567 * NOTE: If ql4dontresethba==1, set IDC_CTRL DONTRESET_BIT0.
7568 * If DONRESET_BIT0 is set, drivers should not set dev_state
7569 * to NEED_RESET. But if NEED_RESET is set, drivers should
7570 * should honor the reset.
7571 */
7572 if (ql4xdontresethba == 1)
7573 qla4_83xx_set_idc_dontreset(ha);
7574 }
7575
7576 /*
7577 * Initialize the Host adapter request/response queues and
7578 * firmware
7579 * NOTE: interrupts enabled upon successful completion
7580 */
7581 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER);
7582
7583 /* Dont retry adapter initialization if IRQ allocation failed */
7584 if (is_qla80XX(ha) && !test_bit(AF_IRQ_ATTACHED, &ha->flags)) {
7585 ql4_printk(KERN_WARNING, ha, "%s: Skipping retry of adapter initialization\n",
7586 __func__);
7587 goto skip_retry_init;
7588 }
7589
7590 while ((!test_bit(AF_ONLINE, &ha->flags)) &&
7591 init_retry_count++ < MAX_INIT_RETRIES) {
7592
7593 if (is_qla80XX(ha)) {
7594 ha->isp_ops->idc_lock(ha);
7595 dev_state = qla4_8xxx_rd_direct(ha,
7596 QLA8XXX_CRB_DEV_STATE);
7597 ha->isp_ops->idc_unlock(ha);
7598 if (dev_state == QLA8XXX_DEV_FAILED) {
7599 ql4_printk(KERN_WARNING, ha, "%s: don't retry "
7600 "initialize adapter. H/W is in failed state\n",
7601 __func__);
7602 break;
7603 }
7604 }
7605 DEBUG2(printk("scsi: %s: retrying adapter initialization "
7606 "(%d)\n", __func__, init_retry_count));
7607
7608 if (ha->isp_ops->reset_chip(ha) == QLA_ERROR)
7609 continue;
7610
7611 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER);
7612 }
7613
7614 skip_retry_init:
7615 if (!test_bit(AF_ONLINE, &ha->flags)) {
7616 ql4_printk(KERN_WARNING, ha, "Failed to initialize adapter\n");
7617
7618 if ((is_qla8022(ha) && ql4xdontresethba) ||
7619 ((is_qla8032(ha) || is_qla8042(ha)) &&
7620 qla4_83xx_idc_dontreset(ha))) {
7621 /* Put the device in failed state. */
7622 DEBUG2(printk(KERN_ERR "HW STATE: FAILED\n"));
7623 ha->isp_ops->idc_lock(ha);
7624 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
7625 QLA8XXX_DEV_FAILED);
7626 ha->isp_ops->idc_unlock(ha);
7627 }
7628 ret = -ENODEV;
7629 goto remove_host;
7630 }
7631
7632 /* Startup the kernel thread for this host adapter. */
7633 DEBUG2(printk("scsi: %s: Starting kernel thread for "
7634 "qla4xxx_dpc\n", __func__));
7635 sprintf(buf, "qla4xxx_%lu_dpc", ha->host_no);
7636 ha->dpc_thread = create_singlethread_workqueue(buf);
7637 if (!ha->dpc_thread) {
7638 ql4_printk(KERN_WARNING, ha, "Unable to start DPC thread!\n");
7639 ret = -ENODEV;
7640 goto remove_host;
7641 }
7642 INIT_WORK(&ha->dpc_work, qla4xxx_do_dpc);
7643
7644 ha->task_wq = alloc_workqueue("qla4xxx_%lu_task", WQ_MEM_RECLAIM, 1,
7645 ha->host_no);
7646 if (!ha->task_wq) {
7647 ql4_printk(KERN_WARNING, ha, "Unable to start task thread!\n");
7648 ret = -ENODEV;
7649 goto remove_host;
7650 }
7651
7652 /*
7653 * For ISP-8XXX, request_irqs is called in qla4_8xxx_load_risc
7654 * (which is called indirectly by qla4xxx_initialize_adapter),
7655 * so that irqs will be registered after crbinit but before
7656 * mbx_intr_enable.
7657 */
7658 if (is_qla40XX(ha)) {
7659 ret = qla4xxx_request_irqs(ha);
7660 if (ret) {
7661 ql4_printk(KERN_WARNING, ha, "Failed to reserve "
7662 "interrupt %d already in use.\n", pdev->irq);
7663 goto remove_host;
7664 }
7665 }
7666
7667 pci_save_state(ha->pdev);
7668 ha->isp_ops->enable_intrs(ha);
7669
7670 /* Start timer thread. */
7671 qla4xxx_start_timer(ha, qla4xxx_timer, 1);
7672
7673 set_bit(AF_INIT_DONE, &ha->flags);
7674
7675 qla4_8xxx_alloc_sysfs_attr(ha);
7676
7677 printk(KERN_INFO
7678 " QLogic iSCSI HBA Driver version: %s\n"
7679 " QLogic ISP%04x @ %s, host#=%ld, fw=%02d.%02d.%02d.%02d\n",
7680 qla4xxx_version_str, ha->pdev->device, pci_name(ha->pdev),
7681 ha->host_no, ha->fw_info.fw_major, ha->fw_info.fw_minor,
7682 ha->fw_info.fw_patch, ha->fw_info.fw_build);
7683
7684 /* Set the driver version */
7685 if (is_qla80XX(ha))
7686 qla4_8xxx_set_param(ha, SET_DRVR_VERSION);
7687
7688 if (qla4xxx_setup_boot_info(ha))
7689 ql4_printk(KERN_ERR, ha,
7690 "%s: No iSCSI boot target configured\n", __func__);
7691
7692 if (qla4xxx_sysfs_ddb_export(ha))
7693 ql4_printk(KERN_ERR, ha,
7694 "%s: Error exporting ddb to sysfs\n", __func__);
7695
7696 /* Perform the build ddb list and login to each */
7697 qla4xxx_build_ddb_list(ha, INIT_ADAPTER);
7698 iscsi_host_for_each_session(ha->host, qla4xxx_login_flash_ddb);
7699 qla4xxx_wait_login_resp_boot_tgt(ha);
7700
7701 qla4xxx_create_chap_list(ha);
7702
7703 qla4xxx_create_ifaces(ha);
7704 return 0;
7705
7706 remove_host:
7707 scsi_remove_host(ha->host);
7708
7709 probe_failed:
7710 qla4xxx_free_adapter(ha);
7711
7712 probe_failed_ioconfig:
7713 pci_disable_pcie_error_reporting(pdev);
7714 scsi_host_put(ha->host);
7715
7716 probe_disable_device:
7717 pci_disable_device(pdev);
7718
7719 return ret;
7720 }
7721
7722 /**
7723 * qla4xxx_prevent_other_port_reinit - prevent other port from re-initialize
7724 * @ha: pointer to adapter structure
7725 *
7726 * Mark the other ISP-4xxx port to indicate that the driver is being removed,
7727 * so that the other port will not re-initialize while in the process of
7728 * removing the ha due to driver unload or hba hotplug.
7729 **/
7730 static void qla4xxx_prevent_other_port_reinit(struct scsi_qla_host *ha)
7731 {
7732 struct scsi_qla_host *other_ha = NULL;
7733 struct pci_dev *other_pdev = NULL;
7734 int fn = ISP4XXX_PCI_FN_2;
7735
7736 /*iscsi function numbers for ISP4xxx is 1 and 3*/
7737 if (PCI_FUNC(ha->pdev->devfn) & BIT_1)
7738 fn = ISP4XXX_PCI_FN_1;
7739
7740 other_pdev =
7741 pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus),
7742 ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
7743 fn));
7744
7745 /* Get other_ha if other_pdev is valid and state is enable*/
7746 if (other_pdev) {
7747 if (atomic_read(&other_pdev->enable_cnt)) {
7748 other_ha = pci_get_drvdata(other_pdev);
7749 if (other_ha) {
7750 set_bit(AF_HA_REMOVAL, &other_ha->flags);
7751 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: "
7752 "Prevent %s reinit\n", __func__,
7753 dev_name(&other_ha->pdev->dev)));
7754 }
7755 }
7756 pci_dev_put(other_pdev);
7757 }
7758 }
7759
7760 static void qla4xxx_destroy_fw_ddb_session(struct scsi_qla_host *ha)
7761 {
7762 struct ddb_entry *ddb_entry;
7763 int options;
7764 int idx;
7765
7766 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
7767
7768 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
7769 if ((ddb_entry != NULL) &&
7770 (ddb_entry->ddb_type == FLASH_DDB)) {
7771
7772 options = LOGOUT_OPTION_CLOSE_SESSION;
7773 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options)
7774 == QLA_ERROR)
7775 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n",
7776 __func__);
7777
7778 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
7779 /*
7780 * we have decremented the reference count of the driver
7781 * when we setup the session to have the driver unload
7782 * to be seamless without actually destroying the
7783 * session
7784 **/
7785 try_module_get(qla4xxx_iscsi_transport.owner);
7786 iscsi_destroy_endpoint(ddb_entry->conn->ep);
7787 qla4xxx_free_ddb(ha, ddb_entry);
7788 iscsi_session_teardown(ddb_entry->sess);
7789 }
7790 }
7791 }
7792 /**
7793 * qla4xxx_remove_adapter - callback function to remove adapter.
7794 * @pci_dev: PCI device pointer
7795 **/
7796 static void qla4xxx_remove_adapter(struct pci_dev *pdev)
7797 {
7798 struct scsi_qla_host *ha;
7799
7800 /*
7801 * If the PCI device is disabled then it means probe_adapter had
7802 * failed and resources already cleaned up on probe_adapter exit.
7803 */
7804 if (!pci_is_enabled(pdev))
7805 return;
7806
7807 ha = pci_get_drvdata(pdev);
7808
7809 if (is_qla40XX(ha))
7810 qla4xxx_prevent_other_port_reinit(ha);
7811
7812 /* destroy iface from sysfs */
7813 qla4xxx_destroy_ifaces(ha);
7814
7815 if ((!ql4xdisablesysfsboot) && ha->boot_kset)
7816 iscsi_boot_destroy_kset(ha->boot_kset);
7817
7818 qla4xxx_destroy_fw_ddb_session(ha);
7819 qla4_8xxx_free_sysfs_attr(ha);
7820
7821 qla4xxx_sysfs_ddb_remove(ha);
7822 scsi_remove_host(ha->host);
7823
7824 qla4xxx_free_adapter(ha);
7825
7826 scsi_host_put(ha->host);
7827
7828 pci_disable_pcie_error_reporting(pdev);
7829 pci_disable_device(pdev);
7830 pci_set_drvdata(pdev, NULL);
7831 }
7832
7833 /**
7834 * qla4xxx_config_dma_addressing() - Configure OS DMA addressing method.
7835 * @ha: HA context
7836 *
7837 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
7838 * supported addressing method.
7839 */
7840 static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha)
7841 {
7842 int retval;
7843
7844 /* Update our PCI device dma_mask for full 64 bit mask */
7845 if (pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(64)) == 0) {
7846 if (pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) {
7847 dev_dbg(&ha->pdev->dev,
7848 "Failed to set 64 bit PCI consistent mask; "
7849 "using 32 bit.\n");
7850 retval = pci_set_consistent_dma_mask(ha->pdev,
7851 DMA_BIT_MASK(32));
7852 }
7853 } else
7854 retval = pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(32));
7855 }
7856
7857 static int qla4xxx_slave_alloc(struct scsi_device *sdev)
7858 {
7859 struct iscsi_cls_session *cls_sess;
7860 struct iscsi_session *sess;
7861 struct ddb_entry *ddb;
7862 int queue_depth = QL4_DEF_QDEPTH;
7863
7864 cls_sess = starget_to_session(sdev->sdev_target);
7865 sess = cls_sess->dd_data;
7866 ddb = sess->dd_data;
7867
7868 sdev->hostdata = ddb;
7869 sdev->tagged_supported = 1;
7870
7871 if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU)
7872 queue_depth = ql4xmaxqdepth;
7873
7874 scsi_activate_tcq(sdev, queue_depth);
7875 return 0;
7876 }
7877
7878 static int qla4xxx_slave_configure(struct scsi_device *sdev)
7879 {
7880 sdev->tagged_supported = 1;
7881 return 0;
7882 }
7883
7884 static void qla4xxx_slave_destroy(struct scsi_device *sdev)
7885 {
7886 scsi_deactivate_tcq(sdev, 1);
7887 }
7888
7889 static int qla4xxx_change_queue_depth(struct scsi_device *sdev, int qdepth,
7890 int reason)
7891 {
7892 if (!ql4xqfulltracking)
7893 return -EOPNOTSUPP;
7894
7895 return iscsi_change_queue_depth(sdev, qdepth, reason);
7896 }
7897
7898 /**
7899 * qla4xxx_del_from_active_array - returns an active srb
7900 * @ha: Pointer to host adapter structure.
7901 * @index: index into the active_array
7902 *
7903 * This routine removes and returns the srb at the specified index
7904 **/
7905 struct srb *qla4xxx_del_from_active_array(struct scsi_qla_host *ha,
7906 uint32_t index)
7907 {
7908 struct srb *srb = NULL;
7909 struct scsi_cmnd *cmd = NULL;
7910
7911 cmd = scsi_host_find_tag(ha->host, index);
7912 if (!cmd)
7913 return srb;
7914
7915 srb = (struct srb *)CMD_SP(cmd);
7916 if (!srb)
7917 return srb;
7918
7919 /* update counters */
7920 if (srb->flags & SRB_DMA_VALID) {
7921 ha->iocb_cnt -= srb->iocb_cnt;
7922 if (srb->cmd)
7923 srb->cmd->host_scribble =
7924 (unsigned char *)(unsigned long) MAX_SRBS;
7925 }
7926 return srb;
7927 }
7928
7929 /**
7930 * qla4xxx_eh_wait_on_command - waits for command to be returned by firmware
7931 * @ha: Pointer to host adapter structure.
7932 * @cmd: Scsi Command to wait on.
7933 *
7934 * This routine waits for the command to be returned by the Firmware
7935 * for some max time.
7936 **/
7937 static int qla4xxx_eh_wait_on_command(struct scsi_qla_host *ha,
7938 struct scsi_cmnd *cmd)
7939 {
7940 int done = 0;
7941 struct srb *rp;
7942 uint32_t max_wait_time = EH_WAIT_CMD_TOV;
7943 int ret = SUCCESS;
7944
7945 /* Dont wait on command if PCI error is being handled
7946 * by PCI AER driver
7947 */
7948 if (unlikely(pci_channel_offline(ha->pdev)) ||
7949 (test_bit(AF_EEH_BUSY, &ha->flags))) {
7950 ql4_printk(KERN_WARNING, ha, "scsi%ld: Return from %s\n",
7951 ha->host_no, __func__);
7952 return ret;
7953 }
7954
7955 do {
7956 /* Checking to see if its returned to OS */
7957 rp = (struct srb *) CMD_SP(cmd);
7958 if (rp == NULL) {
7959 done++;
7960 break;
7961 }
7962
7963 msleep(2000);
7964 } while (max_wait_time--);
7965
7966 return done;
7967 }
7968
7969 /**
7970 * qla4xxx_wait_for_hba_online - waits for HBA to come online
7971 * @ha: Pointer to host adapter structure
7972 **/
7973 static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha)
7974 {
7975 unsigned long wait_online;
7976
7977 wait_online = jiffies + (HBA_ONLINE_TOV * HZ);
7978 while (time_before(jiffies, wait_online)) {
7979
7980 if (adapter_up(ha))
7981 return QLA_SUCCESS;
7982
7983 msleep(2000);
7984 }
7985
7986 return QLA_ERROR;
7987 }
7988
7989 /**
7990 * qla4xxx_eh_wait_for_commands - wait for active cmds to finish.
7991 * @ha: pointer to HBA
7992 * @t: target id
7993 * @l: lun id
7994 *
7995 * This function waits for all outstanding commands to a lun to complete. It
7996 * returns 0 if all pending commands are returned and 1 otherwise.
7997 **/
7998 static int qla4xxx_eh_wait_for_commands(struct scsi_qla_host *ha,
7999 struct scsi_target *stgt,
8000 struct scsi_device *sdev)
8001 {
8002 int cnt;
8003 int status = 0;
8004 struct scsi_cmnd *cmd;
8005
8006 /*
8007 * Waiting for all commands for the designated target or dev
8008 * in the active array
8009 */
8010 for (cnt = 0; cnt < ha->host->can_queue; cnt++) {
8011 cmd = scsi_host_find_tag(ha->host, cnt);
8012 if (cmd && stgt == scsi_target(cmd->device) &&
8013 (!sdev || sdev == cmd->device)) {
8014 if (!qla4xxx_eh_wait_on_command(ha, cmd)) {
8015 status++;
8016 break;
8017 }
8018 }
8019 }
8020 return status;
8021 }
8022
8023 /**
8024 * qla4xxx_eh_abort - callback for abort task.
8025 * @cmd: Pointer to Linux's SCSI command structure
8026 *
8027 * This routine is called by the Linux OS to abort the specified
8028 * command.
8029 **/
8030 static int qla4xxx_eh_abort(struct scsi_cmnd *cmd)
8031 {
8032 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
8033 unsigned int id = cmd->device->id;
8034 unsigned int lun = cmd->device->lun;
8035 unsigned long flags;
8036 struct srb *srb = NULL;
8037 int ret = SUCCESS;
8038 int wait = 0;
8039
8040 ql4_printk(KERN_INFO, ha,
8041 "scsi%ld:%d:%d: Abort command issued cmd=%p\n",
8042 ha->host_no, id, lun, cmd);
8043
8044 spin_lock_irqsave(&ha->hardware_lock, flags);
8045 srb = (struct srb *) CMD_SP(cmd);
8046 if (!srb) {
8047 spin_unlock_irqrestore(&ha->hardware_lock, flags);
8048 return SUCCESS;
8049 }
8050 kref_get(&srb->srb_ref);
8051 spin_unlock_irqrestore(&ha->hardware_lock, flags);
8052
8053 if (qla4xxx_abort_task(ha, srb) != QLA_SUCCESS) {
8054 DEBUG3(printk("scsi%ld:%d:%d: Abort_task mbx failed.\n",
8055 ha->host_no, id, lun));
8056 ret = FAILED;
8057 } else {
8058 DEBUG3(printk("scsi%ld:%d:%d: Abort_task mbx success.\n",
8059 ha->host_no, id, lun));
8060 wait = 1;
8061 }
8062
8063 kref_put(&srb->srb_ref, qla4xxx_srb_compl);
8064
8065 /* Wait for command to complete */
8066 if (wait) {
8067 if (!qla4xxx_eh_wait_on_command(ha, cmd)) {
8068 DEBUG2(printk("scsi%ld:%d:%d: Abort handler timed out\n",
8069 ha->host_no, id, lun));
8070 ret = FAILED;
8071 }
8072 }
8073
8074 ql4_printk(KERN_INFO, ha,
8075 "scsi%ld:%d:%d: Abort command - %s\n",
8076 ha->host_no, id, lun, (ret == SUCCESS) ? "succeeded" : "failed");
8077
8078 return ret;
8079 }
8080
8081 /**
8082 * qla4xxx_eh_device_reset - callback for target reset.
8083 * @cmd: Pointer to Linux's SCSI command structure
8084 *
8085 * This routine is called by the Linux OS to reset all luns on the
8086 * specified target.
8087 **/
8088 static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd)
8089 {
8090 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
8091 struct ddb_entry *ddb_entry = cmd->device->hostdata;
8092 int ret = FAILED, stat;
8093
8094 if (!ddb_entry)
8095 return ret;
8096
8097 ret = iscsi_block_scsi_eh(cmd);
8098 if (ret)
8099 return ret;
8100 ret = FAILED;
8101
8102 ql4_printk(KERN_INFO, ha,
8103 "scsi%ld:%d:%d:%d: DEVICE RESET ISSUED.\n", ha->host_no,
8104 cmd->device->channel, cmd->device->id, cmd->device->lun);
8105
8106 DEBUG2(printk(KERN_INFO
8107 "scsi%ld: DEVICE_RESET cmd=%p jiffies = 0x%lx, to=%x,"
8108 "dpc_flags=%lx, status=%x allowed=%d\n", ha->host_no,
8109 cmd, jiffies, cmd->request->timeout / HZ,
8110 ha->dpc_flags, cmd->result, cmd->allowed));
8111
8112 /* FIXME: wait for hba to go online */
8113 stat = qla4xxx_reset_lun(ha, ddb_entry, cmd->device->lun);
8114 if (stat != QLA_SUCCESS) {
8115 ql4_printk(KERN_INFO, ha, "DEVICE RESET FAILED. %d\n", stat);
8116 goto eh_dev_reset_done;
8117 }
8118
8119 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device),
8120 cmd->device)) {
8121 ql4_printk(KERN_INFO, ha,
8122 "DEVICE RESET FAILED - waiting for "
8123 "commands.\n");
8124 goto eh_dev_reset_done;
8125 }
8126
8127 /* Send marker. */
8128 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun,
8129 MM_LUN_RESET) != QLA_SUCCESS)
8130 goto eh_dev_reset_done;
8131
8132 ql4_printk(KERN_INFO, ha,
8133 "scsi(%ld:%d:%d:%d): DEVICE RESET SUCCEEDED.\n",
8134 ha->host_no, cmd->device->channel, cmd->device->id,
8135 cmd->device->lun);
8136
8137 ret = SUCCESS;
8138
8139 eh_dev_reset_done:
8140
8141 return ret;
8142 }
8143
8144 /**
8145 * qla4xxx_eh_target_reset - callback for target reset.
8146 * @cmd: Pointer to Linux's SCSI command structure
8147 *
8148 * This routine is called by the Linux OS to reset the target.
8149 **/
8150 static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd)
8151 {
8152 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
8153 struct ddb_entry *ddb_entry = cmd->device->hostdata;
8154 int stat, ret;
8155
8156 if (!ddb_entry)
8157 return FAILED;
8158
8159 ret = iscsi_block_scsi_eh(cmd);
8160 if (ret)
8161 return ret;
8162
8163 starget_printk(KERN_INFO, scsi_target(cmd->device),
8164 "WARM TARGET RESET ISSUED.\n");
8165
8166 DEBUG2(printk(KERN_INFO
8167 "scsi%ld: TARGET_DEVICE_RESET cmd=%p jiffies = 0x%lx, "
8168 "to=%x,dpc_flags=%lx, status=%x allowed=%d\n",
8169 ha->host_no, cmd, jiffies, cmd->request->timeout / HZ,
8170 ha->dpc_flags, cmd->result, cmd->allowed));
8171
8172 stat = qla4xxx_reset_target(ha, ddb_entry);
8173 if (stat != QLA_SUCCESS) {
8174 starget_printk(KERN_INFO, scsi_target(cmd->device),
8175 "WARM TARGET RESET FAILED.\n");
8176 return FAILED;
8177 }
8178
8179 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device),
8180 NULL)) {
8181 starget_printk(KERN_INFO, scsi_target(cmd->device),
8182 "WARM TARGET DEVICE RESET FAILED - "
8183 "waiting for commands.\n");
8184 return FAILED;
8185 }
8186
8187 /* Send marker. */
8188 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun,
8189 MM_TGT_WARM_RESET) != QLA_SUCCESS) {
8190 starget_printk(KERN_INFO, scsi_target(cmd->device),
8191 "WARM TARGET DEVICE RESET FAILED - "
8192 "marker iocb failed.\n");
8193 return FAILED;
8194 }
8195
8196 starget_printk(KERN_INFO, scsi_target(cmd->device),
8197 "WARM TARGET RESET SUCCEEDED.\n");
8198 return SUCCESS;
8199 }
8200
8201 /**
8202 * qla4xxx_is_eh_active - check if error handler is running
8203 * @shost: Pointer to SCSI Host struct
8204 *
8205 * This routine finds that if reset host is called in EH
8206 * scenario or from some application like sg_reset
8207 **/
8208 static int qla4xxx_is_eh_active(struct Scsi_Host *shost)
8209 {
8210 if (shost->shost_state == SHOST_RECOVERY)
8211 return 1;
8212 return 0;
8213 }
8214
8215 /**
8216 * qla4xxx_eh_host_reset - kernel callback
8217 * @cmd: Pointer to Linux's SCSI command structure
8218 *
8219 * This routine is invoked by the Linux kernel to perform fatal error
8220 * recovery on the specified adapter.
8221 **/
8222 static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd)
8223 {
8224 int return_status = FAILED;
8225 struct scsi_qla_host *ha;
8226
8227 ha = to_qla_host(cmd->device->host);
8228
8229 if ((is_qla8032(ha) || is_qla8042(ha)) && ql4xdontresethba)
8230 qla4_83xx_set_idc_dontreset(ha);
8231
8232 /*
8233 * For ISP8324 and ISP8042, if IDC_CTRL DONTRESET_BIT0 is set by other
8234 * protocol drivers, we should not set device_state to NEED_RESET
8235 */
8236 if (ql4xdontresethba ||
8237 ((is_qla8032(ha) || is_qla8042(ha)) &&
8238 qla4_83xx_idc_dontreset(ha))) {
8239 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n",
8240 ha->host_no, __func__));
8241
8242 /* Clear outstanding srb in queues */
8243 if (qla4xxx_is_eh_active(cmd->device->host))
8244 qla4xxx_abort_active_cmds(ha, DID_ABORT << 16);
8245
8246 return FAILED;
8247 }
8248
8249 ql4_printk(KERN_INFO, ha,
8250 "scsi(%ld:%d:%d:%d): HOST RESET ISSUED.\n", ha->host_no,
8251 cmd->device->channel, cmd->device->id, cmd->device->lun);
8252
8253 if (qla4xxx_wait_for_hba_online(ha) != QLA_SUCCESS) {
8254 DEBUG2(printk("scsi%ld:%d: %s: Unable to reset host. Adapter "
8255 "DEAD.\n", ha->host_no, cmd->device->channel,
8256 __func__));
8257
8258 return FAILED;
8259 }
8260
8261 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
8262 if (is_qla80XX(ha))
8263 set_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
8264 else
8265 set_bit(DPC_RESET_HA, &ha->dpc_flags);
8266 }
8267
8268 if (qla4xxx_recover_adapter(ha) == QLA_SUCCESS)
8269 return_status = SUCCESS;
8270
8271 ql4_printk(KERN_INFO, ha, "HOST RESET %s.\n",
8272 return_status == FAILED ? "FAILED" : "SUCCEEDED");
8273
8274 return return_status;
8275 }
8276
8277 static int qla4xxx_context_reset(struct scsi_qla_host *ha)
8278 {
8279 uint32_t mbox_cmd[MBOX_REG_COUNT];
8280 uint32_t mbox_sts[MBOX_REG_COUNT];
8281 struct addr_ctrl_blk_def *acb = NULL;
8282 uint32_t acb_len = sizeof(struct addr_ctrl_blk_def);
8283 int rval = QLA_SUCCESS;
8284 dma_addr_t acb_dma;
8285
8286 acb = dma_alloc_coherent(&ha->pdev->dev,
8287 sizeof(struct addr_ctrl_blk_def),
8288 &acb_dma, GFP_KERNEL);
8289 if (!acb) {
8290 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc acb\n",
8291 __func__);
8292 rval = -ENOMEM;
8293 goto exit_port_reset;
8294 }
8295
8296 memset(acb, 0, acb_len);
8297
8298 rval = qla4xxx_get_acb(ha, acb_dma, PRIMARI_ACB, acb_len);
8299 if (rval != QLA_SUCCESS) {
8300 rval = -EIO;
8301 goto exit_free_acb;
8302 }
8303
8304 rval = qla4xxx_disable_acb(ha);
8305 if (rval != QLA_SUCCESS) {
8306 rval = -EIO;
8307 goto exit_free_acb;
8308 }
8309
8310 wait_for_completion_timeout(&ha->disable_acb_comp,
8311 DISABLE_ACB_TOV * HZ);
8312
8313 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], acb_dma);
8314 if (rval != QLA_SUCCESS) {
8315 rval = -EIO;
8316 goto exit_free_acb;
8317 }
8318
8319 exit_free_acb:
8320 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk_def),
8321 acb, acb_dma);
8322 exit_port_reset:
8323 DEBUG2(ql4_printk(KERN_INFO, ha, "%s %s\n", __func__,
8324 rval == QLA_SUCCESS ? "SUCCEEDED" : "FAILED"));
8325 return rval;
8326 }
8327
8328 static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type)
8329 {
8330 struct scsi_qla_host *ha = to_qla_host(shost);
8331 int rval = QLA_SUCCESS;
8332 uint32_t idc_ctrl;
8333
8334 if (ql4xdontresethba) {
8335 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Don't Reset HBA\n",
8336 __func__));
8337 rval = -EPERM;
8338 goto exit_host_reset;
8339 }
8340
8341 if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
8342 goto recover_adapter;
8343
8344 switch (reset_type) {
8345 case SCSI_ADAPTER_RESET:
8346 set_bit(DPC_RESET_HA, &ha->dpc_flags);
8347 break;
8348 case SCSI_FIRMWARE_RESET:
8349 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
8350 if (is_qla80XX(ha))
8351 /* set firmware context reset */
8352 set_bit(DPC_RESET_HA_FW_CONTEXT,
8353 &ha->dpc_flags);
8354 else {
8355 rval = qla4xxx_context_reset(ha);
8356 goto exit_host_reset;
8357 }
8358 }
8359 break;
8360 }
8361
8362 recover_adapter:
8363 /* For ISP8324 and ISP8042 set graceful reset bit in IDC_DRV_CTRL if
8364 * reset is issued by application */
8365 if ((is_qla8032(ha) || is_qla8042(ha)) &&
8366 test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
8367 idc_ctrl = qla4_83xx_rd_reg(ha, QLA83XX_IDC_DRV_CTRL);
8368 qla4_83xx_wr_reg(ha, QLA83XX_IDC_DRV_CTRL,
8369 (idc_ctrl | GRACEFUL_RESET_BIT1));
8370 }
8371
8372 rval = qla4xxx_recover_adapter(ha);
8373 if (rval != QLA_SUCCESS) {
8374 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: recover adapter fail\n",
8375 __func__));
8376 rval = -EIO;
8377 }
8378
8379 exit_host_reset:
8380 return rval;
8381 }
8382
8383 /* PCI AER driver recovers from all correctable errors w/o
8384 * driver intervention. For uncorrectable errors PCI AER
8385 * driver calls the following device driver's callbacks
8386 *
8387 * - Fatal Errors - link_reset
8388 * - Non-Fatal Errors - driver's pci_error_detected() which
8389 * returns CAN_RECOVER, NEED_RESET or DISCONNECT.
8390 *
8391 * PCI AER driver calls
8392 * CAN_RECOVER - driver's pci_mmio_enabled(), mmio_enabled
8393 * returns RECOVERED or NEED_RESET if fw_hung
8394 * NEED_RESET - driver's slot_reset()
8395 * DISCONNECT - device is dead & cannot recover
8396 * RECOVERED - driver's pci_resume()
8397 */
8398 static pci_ers_result_t
8399 qla4xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
8400 {
8401 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
8402
8403 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: error detected:state %x\n",
8404 ha->host_no, __func__, state);
8405
8406 if (!is_aer_supported(ha))
8407 return PCI_ERS_RESULT_NONE;
8408
8409 switch (state) {
8410 case pci_channel_io_normal:
8411 clear_bit(AF_EEH_BUSY, &ha->flags);
8412 return PCI_ERS_RESULT_CAN_RECOVER;
8413 case pci_channel_io_frozen:
8414 set_bit(AF_EEH_BUSY, &ha->flags);
8415 qla4xxx_mailbox_premature_completion(ha);
8416 qla4xxx_free_irqs(ha);
8417 pci_disable_device(pdev);
8418 /* Return back all IOs */
8419 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
8420 return PCI_ERS_RESULT_NEED_RESET;
8421 case pci_channel_io_perm_failure:
8422 set_bit(AF_EEH_BUSY, &ha->flags);
8423 set_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags);
8424 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
8425 return PCI_ERS_RESULT_DISCONNECT;
8426 }
8427 return PCI_ERS_RESULT_NEED_RESET;
8428 }
8429
8430 /**
8431 * qla4xxx_pci_mmio_enabled() gets called if
8432 * qla4xxx_pci_error_detected() returns PCI_ERS_RESULT_CAN_RECOVER
8433 * and read/write to the device still works.
8434 **/
8435 static pci_ers_result_t
8436 qla4xxx_pci_mmio_enabled(struct pci_dev *pdev)
8437 {
8438 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
8439
8440 if (!is_aer_supported(ha))
8441 return PCI_ERS_RESULT_NONE;
8442
8443 return PCI_ERS_RESULT_RECOVERED;
8444 }
8445
8446 static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha)
8447 {
8448 uint32_t rval = QLA_ERROR;
8449 int fn;
8450 struct pci_dev *other_pdev = NULL;
8451
8452 ql4_printk(KERN_WARNING, ha, "scsi%ld: In %s\n", ha->host_no, __func__);
8453
8454 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
8455
8456 if (test_bit(AF_ONLINE, &ha->flags)) {
8457 clear_bit(AF_ONLINE, &ha->flags);
8458 clear_bit(AF_LINK_UP, &ha->flags);
8459 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session);
8460 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
8461 }
8462
8463 fn = PCI_FUNC(ha->pdev->devfn);
8464 while (fn > 0) {
8465 fn--;
8466 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Finding PCI device at "
8467 "func %x\n", ha->host_no, __func__, fn);
8468 /* Get the pci device given the domain, bus,
8469 * slot/function number */
8470 other_pdev =
8471 pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus),
8472 ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
8473 fn));
8474
8475 if (!other_pdev)
8476 continue;
8477
8478 if (atomic_read(&other_pdev->enable_cnt)) {
8479 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Found PCI "
8480 "func in enabled state%x\n", ha->host_no,
8481 __func__, fn);
8482 pci_dev_put(other_pdev);
8483 break;
8484 }
8485 pci_dev_put(other_pdev);
8486 }
8487
8488 /* The first function on the card, the reset owner will
8489 * start & initialize the firmware. The other functions
8490 * on the card will reset the firmware context
8491 */
8492 if (!fn) {
8493 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn being reset "
8494 "0x%x is the owner\n", ha->host_no, __func__,
8495 ha->pdev->devfn);
8496
8497 ha->isp_ops->idc_lock(ha);
8498 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
8499 QLA8XXX_DEV_COLD);
8500 ha->isp_ops->idc_unlock(ha);
8501
8502 rval = qla4_8xxx_update_idc_reg(ha);
8503 if (rval == QLA_ERROR) {
8504 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: FAILED\n",
8505 ha->host_no, __func__);
8506 ha->isp_ops->idc_lock(ha);
8507 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
8508 QLA8XXX_DEV_FAILED);
8509 ha->isp_ops->idc_unlock(ha);
8510 goto exit_error_recovery;
8511 }
8512
8513 clear_bit(AF_FW_RECOVERY, &ha->flags);
8514 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
8515
8516 if (rval != QLA_SUCCESS) {
8517 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: "
8518 "FAILED\n", ha->host_no, __func__);
8519 ha->isp_ops->idc_lock(ha);
8520 qla4_8xxx_clear_drv_active(ha);
8521 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
8522 QLA8XXX_DEV_FAILED);
8523 ha->isp_ops->idc_unlock(ha);
8524 } else {
8525 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: "
8526 "READY\n", ha->host_no, __func__);
8527 ha->isp_ops->idc_lock(ha);
8528 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
8529 QLA8XXX_DEV_READY);
8530 /* Clear driver state register */
8531 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_STATE, 0);
8532 qla4_8xxx_set_drv_active(ha);
8533 ha->isp_ops->idc_unlock(ha);
8534 ha->isp_ops->enable_intrs(ha);
8535 }
8536 } else {
8537 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn 0x%x is not "
8538 "the reset owner\n", ha->host_no, __func__,
8539 ha->pdev->devfn);
8540 if ((qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE) ==
8541 QLA8XXX_DEV_READY)) {
8542 clear_bit(AF_FW_RECOVERY, &ha->flags);
8543 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
8544 if (rval == QLA_SUCCESS)
8545 ha->isp_ops->enable_intrs(ha);
8546
8547 ha->isp_ops->idc_lock(ha);
8548 qla4_8xxx_set_drv_active(ha);
8549 ha->isp_ops->idc_unlock(ha);
8550 }
8551 }
8552 exit_error_recovery:
8553 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
8554 return rval;
8555 }
8556
8557 static pci_ers_result_t
8558 qla4xxx_pci_slot_reset(struct pci_dev *pdev)
8559 {
8560 pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
8561 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
8562 int rc;
8563
8564 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: slot_reset\n",
8565 ha->host_no, __func__);
8566
8567 if (!is_aer_supported(ha))
8568 return PCI_ERS_RESULT_NONE;
8569
8570 /* Restore the saved state of PCIe device -
8571 * BAR registers, PCI Config space, PCIX, MSI,
8572 * IOV states
8573 */
8574 pci_restore_state(pdev);
8575
8576 /* pci_restore_state() clears the saved_state flag of the device
8577 * save restored state which resets saved_state flag
8578 */
8579 pci_save_state(pdev);
8580
8581 /* Initialize device or resume if in suspended state */
8582 rc = pci_enable_device(pdev);
8583 if (rc) {
8584 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Can't re-enable "
8585 "device after reset\n", ha->host_no, __func__);
8586 goto exit_slot_reset;
8587 }
8588
8589 ha->isp_ops->disable_intrs(ha);
8590
8591 if (is_qla80XX(ha)) {
8592 if (qla4_8xxx_error_recovery(ha) == QLA_SUCCESS) {
8593 ret = PCI_ERS_RESULT_RECOVERED;
8594 goto exit_slot_reset;
8595 } else
8596 goto exit_slot_reset;
8597 }
8598
8599 exit_slot_reset:
8600 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Return=%x\n"
8601 "device after reset\n", ha->host_no, __func__, ret);
8602 return ret;
8603 }
8604
8605 static void
8606 qla4xxx_pci_resume(struct pci_dev *pdev)
8607 {
8608 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
8609 int ret;
8610
8611 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: pci_resume\n",
8612 ha->host_no, __func__);
8613
8614 ret = qla4xxx_wait_for_hba_online(ha);
8615 if (ret != QLA_SUCCESS) {
8616 ql4_printk(KERN_ERR, ha, "scsi%ld: %s: the device failed to "
8617 "resume I/O from slot/link_reset\n", ha->host_no,
8618 __func__);
8619 }
8620
8621 pci_cleanup_aer_uncorrect_error_status(pdev);
8622 clear_bit(AF_EEH_BUSY, &ha->flags);
8623 }
8624
8625 static const struct pci_error_handlers qla4xxx_err_handler = {
8626 .error_detected = qla4xxx_pci_error_detected,
8627 .mmio_enabled = qla4xxx_pci_mmio_enabled,
8628 .slot_reset = qla4xxx_pci_slot_reset,
8629 .resume = qla4xxx_pci_resume,
8630 };
8631
8632 static struct pci_device_id qla4xxx_pci_tbl[] = {
8633 {
8634 .vendor = PCI_VENDOR_ID_QLOGIC,
8635 .device = PCI_DEVICE_ID_QLOGIC_ISP4010,
8636 .subvendor = PCI_ANY_ID,
8637 .subdevice = PCI_ANY_ID,
8638 },
8639 {
8640 .vendor = PCI_VENDOR_ID_QLOGIC,
8641 .device = PCI_DEVICE_ID_QLOGIC_ISP4022,
8642 .subvendor = PCI_ANY_ID,
8643 .subdevice = PCI_ANY_ID,
8644 },
8645 {
8646 .vendor = PCI_VENDOR_ID_QLOGIC,
8647 .device = PCI_DEVICE_ID_QLOGIC_ISP4032,
8648 .subvendor = PCI_ANY_ID,
8649 .subdevice = PCI_ANY_ID,
8650 },
8651 {
8652 .vendor = PCI_VENDOR_ID_QLOGIC,
8653 .device = PCI_DEVICE_ID_QLOGIC_ISP8022,
8654 .subvendor = PCI_ANY_ID,
8655 .subdevice = PCI_ANY_ID,
8656 },
8657 {
8658 .vendor = PCI_VENDOR_ID_QLOGIC,
8659 .device = PCI_DEVICE_ID_QLOGIC_ISP8324,
8660 .subvendor = PCI_ANY_ID,
8661 .subdevice = PCI_ANY_ID,
8662 },
8663 {
8664 .vendor = PCI_VENDOR_ID_QLOGIC,
8665 .device = PCI_DEVICE_ID_QLOGIC_ISP8042,
8666 .subvendor = PCI_ANY_ID,
8667 .subdevice = PCI_ANY_ID,
8668 },
8669 {0, 0},
8670 };
8671 MODULE_DEVICE_TABLE(pci, qla4xxx_pci_tbl);
8672
8673 static struct pci_driver qla4xxx_pci_driver = {
8674 .name = DRIVER_NAME,
8675 .id_table = qla4xxx_pci_tbl,
8676 .probe = qla4xxx_probe_adapter,
8677 .remove = qla4xxx_remove_adapter,
8678 .err_handler = &qla4xxx_err_handler,
8679 };
8680
8681 static int __init qla4xxx_module_init(void)
8682 {
8683 int ret;
8684
8685 /* Allocate cache for SRBs. */
8686 srb_cachep = kmem_cache_create("qla4xxx_srbs", sizeof(struct srb), 0,
8687 SLAB_HWCACHE_ALIGN, NULL);
8688 if (srb_cachep == NULL) {
8689 printk(KERN_ERR
8690 "%s: Unable to allocate SRB cache..."
8691 "Failing load!\n", DRIVER_NAME);
8692 ret = -ENOMEM;
8693 goto no_srp_cache;
8694 }
8695
8696 /* Derive version string. */
8697 strcpy(qla4xxx_version_str, QLA4XXX_DRIVER_VERSION);
8698 if (ql4xextended_error_logging)
8699 strcat(qla4xxx_version_str, "-debug");
8700
8701 qla4xxx_scsi_transport =
8702 iscsi_register_transport(&qla4xxx_iscsi_transport);
8703 if (!qla4xxx_scsi_transport){
8704 ret = -ENODEV;
8705 goto release_srb_cache;
8706 }
8707
8708 ret = pci_register_driver(&qla4xxx_pci_driver);
8709 if (ret)
8710 goto unregister_transport;
8711
8712 printk(KERN_INFO "QLogic iSCSI HBA Driver\n");
8713 return 0;
8714
8715 unregister_transport:
8716 iscsi_unregister_transport(&qla4xxx_iscsi_transport);
8717 release_srb_cache:
8718 kmem_cache_destroy(srb_cachep);
8719 no_srp_cache:
8720 return ret;
8721 }
8722
8723 static void __exit qla4xxx_module_exit(void)
8724 {
8725 pci_unregister_driver(&qla4xxx_pci_driver);
8726 iscsi_unregister_transport(&qla4xxx_iscsi_transport);
8727 kmem_cache_destroy(srb_cachep);
8728 }
8729
8730 module_init(qla4xxx_module_init);
8731 module_exit(qla4xxx_module_exit);
8732
8733 MODULE_AUTHOR("QLogic Corporation");
8734 MODULE_DESCRIPTION("QLogic iSCSI HBA Driver");
8735 MODULE_LICENSE("GPL");
8736 MODULE_VERSION(QLA4XXX_DRIVER_VERSION);