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watchdog: pic32-dmt: Remove .owner field for driver
[linux/fpc-iii.git] / drivers / scsi / qla4xxx / ql4_os.c
blob01c3610a60cf0b767f7566fc97967158f5eeb618
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 = 0;
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 0 (firmware default capture mask)\n"
91 "\t\t Can be set to 0x3, 0x7, 0xF, 0x1F, 0x3F, 0x7F, 0xFF");
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 static int qla4xxx_get_host_stats(struct Scsi_Host *shost, char *buf, int len);
155
156 /*
157 * SCSI host template entry points
158 */
159 static int qla4xxx_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *cmd);
160 static int qla4xxx_eh_abort(struct scsi_cmnd *cmd);
161 static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd);
162 static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd);
163 static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd);
164 static int qla4xxx_slave_alloc(struct scsi_device *device);
165 static umode_t qla4_attr_is_visible(int param_type, int param);
166 static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type);
167
168 /*
169 * iSCSI Flash DDB sysfs entry points
170 */
171 static int
172 qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess,
173 struct iscsi_bus_flash_conn *fnode_conn,
174 void *data, int len);
175 static int
176 qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session *fnode_sess,
177 int param, char *buf);
178 static int qla4xxx_sysfs_ddb_add(struct Scsi_Host *shost, const char *buf,
179 int len);
180 static int
181 qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess);
182 static int qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess,
183 struct iscsi_bus_flash_conn *fnode_conn);
184 static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess,
185 struct iscsi_bus_flash_conn *fnode_conn);
186 static int qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess);
187
188 static struct qla4_8xxx_legacy_intr_set legacy_intr[] =
189 QLA82XX_LEGACY_INTR_CONFIG;
190
191 static struct scsi_host_template qla4xxx_driver_template = {
192 .module = THIS_MODULE,
193 .name = DRIVER_NAME,
194 .proc_name = DRIVER_NAME,
195 .queuecommand = qla4xxx_queuecommand,
196
197 .eh_abort_handler = qla4xxx_eh_abort,
198 .eh_device_reset_handler = qla4xxx_eh_device_reset,
199 .eh_target_reset_handler = qla4xxx_eh_target_reset,
200 .eh_host_reset_handler = qla4xxx_eh_host_reset,
201 .eh_timed_out = qla4xxx_eh_cmd_timed_out,
202
203 .slave_alloc = qla4xxx_slave_alloc,
204 .change_queue_depth = scsi_change_queue_depth,
205
206 .this_id = -1,
207 .cmd_per_lun = 3,
208 .use_clustering = ENABLE_CLUSTERING,
209 .sg_tablesize = SG_ALL,
210
211 .max_sectors = 0xFFFF,
212 .shost_attrs = qla4xxx_host_attrs,
213 .host_reset = qla4xxx_host_reset,
214 .vendor_id = SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC,
215 };
216
217 static struct iscsi_transport qla4xxx_iscsi_transport = {
218 .owner = THIS_MODULE,
219 .name = DRIVER_NAME,
220 .caps = CAP_TEXT_NEGO |
221 CAP_DATA_PATH_OFFLOAD | CAP_HDRDGST |
222 CAP_DATADGST | CAP_LOGIN_OFFLOAD |
223 CAP_MULTI_R2T,
224 .attr_is_visible = qla4_attr_is_visible,
225 .create_session = qla4xxx_session_create,
226 .destroy_session = qla4xxx_session_destroy,
227 .start_conn = qla4xxx_conn_start,
228 .create_conn = qla4xxx_conn_create,
229 .bind_conn = qla4xxx_conn_bind,
230 .stop_conn = iscsi_conn_stop,
231 .destroy_conn = qla4xxx_conn_destroy,
232 .set_param = iscsi_set_param,
233 .get_conn_param = qla4xxx_conn_get_param,
234 .get_session_param = qla4xxx_session_get_param,
235 .get_ep_param = qla4xxx_get_ep_param,
236 .ep_connect = qla4xxx_ep_connect,
237 .ep_poll = qla4xxx_ep_poll,
238 .ep_disconnect = qla4xxx_ep_disconnect,
239 .get_stats = qla4xxx_conn_get_stats,
240 .send_pdu = iscsi_conn_send_pdu,
241 .xmit_task = qla4xxx_task_xmit,
242 .cleanup_task = qla4xxx_task_cleanup,
243 .alloc_pdu = qla4xxx_alloc_pdu,
244
245 .get_host_param = qla4xxx_host_get_param,
246 .set_iface_param = qla4xxx_iface_set_param,
247 .get_iface_param = qla4xxx_get_iface_param,
248 .bsg_request = qla4xxx_bsg_request,
249 .send_ping = qla4xxx_send_ping,
250 .get_chap = qla4xxx_get_chap_list,
251 .delete_chap = qla4xxx_delete_chap,
252 .set_chap = qla4xxx_set_chap_entry,
253 .get_flashnode_param = qla4xxx_sysfs_ddb_get_param,
254 .set_flashnode_param = qla4xxx_sysfs_ddb_set_param,
255 .new_flashnode = qla4xxx_sysfs_ddb_add,
256 .del_flashnode = qla4xxx_sysfs_ddb_delete,
257 .login_flashnode = qla4xxx_sysfs_ddb_login,
258 .logout_flashnode = qla4xxx_sysfs_ddb_logout,
259 .logout_flashnode_sid = qla4xxx_sysfs_ddb_logout_sid,
260 .get_host_stats = qla4xxx_get_host_stats,
261 };
262
263 static struct scsi_transport_template *qla4xxx_scsi_transport;
264
265 static int qla4xxx_send_ping(struct Scsi_Host *shost, uint32_t iface_num,
266 uint32_t iface_type, uint32_t payload_size,
267 uint32_t pid, struct sockaddr *dst_addr)
268 {
269 struct scsi_qla_host *ha = to_qla_host(shost);
270 struct sockaddr_in *addr;
271 struct sockaddr_in6 *addr6;
272 uint32_t options = 0;
273 uint8_t ipaddr[IPv6_ADDR_LEN];
274 int rval;
275
276 memset(ipaddr, 0, IPv6_ADDR_LEN);
277 /* IPv4 to IPv4 */
278 if ((iface_type == ISCSI_IFACE_TYPE_IPV4) &&
279 (dst_addr->sa_family == AF_INET)) {
280 addr = (struct sockaddr_in *)dst_addr;
281 memcpy(ipaddr, &addr->sin_addr.s_addr, IP_ADDR_LEN);
282 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv4 Ping src: %pI4 "
283 "dest: %pI4\n", __func__,
284 &ha->ip_config.ip_address, ipaddr));
285 rval = qla4xxx_ping_iocb(ha, options, payload_size, pid,
286 ipaddr);
287 if (rval)
288 rval = -EINVAL;
289 } else if ((iface_type == ISCSI_IFACE_TYPE_IPV6) &&
290 (dst_addr->sa_family == AF_INET6)) {
291 /* IPv6 to IPv6 */
292 addr6 = (struct sockaddr_in6 *)dst_addr;
293 memcpy(ipaddr, &addr6->sin6_addr.in6_u.u6_addr8, IPv6_ADDR_LEN);
294
295 options |= PING_IPV6_PROTOCOL_ENABLE;
296
297 /* Ping using LinkLocal address */
298 if ((iface_num == 0) || (iface_num == 1)) {
299 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: LinkLocal Ping "
300 "src: %pI6 dest: %pI6\n", __func__,
301 &ha->ip_config.ipv6_link_local_addr,
302 ipaddr));
303 options |= PING_IPV6_LINKLOCAL_ADDR;
304 rval = qla4xxx_ping_iocb(ha, options, payload_size,
305 pid, ipaddr);
306 } else {
307 ql4_printk(KERN_WARNING, ha, "%s: iface num = %d "
308 "not supported\n", __func__, iface_num);
309 rval = -ENOSYS;
310 goto exit_send_ping;
311 }
312
313 /*
314 * If ping using LinkLocal address fails, try ping using
315 * IPv6 address
316 */
317 if (rval != QLA_SUCCESS) {
318 options &= ~PING_IPV6_LINKLOCAL_ADDR;
319 if (iface_num == 0) {
320 options |= PING_IPV6_ADDR0;
321 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv6 "
322 "Ping src: %pI6 "
323 "dest: %pI6\n", __func__,
324 &ha->ip_config.ipv6_addr0,
325 ipaddr));
326 } else if (iface_num == 1) {
327 options |= PING_IPV6_ADDR1;
328 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv6 "
329 "Ping src: %pI6 "
330 "dest: %pI6\n", __func__,
331 &ha->ip_config.ipv6_addr1,
332 ipaddr));
333 }
334 rval = qla4xxx_ping_iocb(ha, options, payload_size,
335 pid, ipaddr);
336 if (rval)
337 rval = -EINVAL;
338 }
339 } else
340 rval = -ENOSYS;
341 exit_send_ping:
342 return rval;
343 }
344
345 static umode_t qla4_attr_is_visible(int param_type, int param)
346 {
347 switch (param_type) {
348 case ISCSI_HOST_PARAM:
349 switch (param) {
350 case ISCSI_HOST_PARAM_HWADDRESS:
351 case ISCSI_HOST_PARAM_IPADDRESS:
352 case ISCSI_HOST_PARAM_INITIATOR_NAME:
353 case ISCSI_HOST_PARAM_PORT_STATE:
354 case ISCSI_HOST_PARAM_PORT_SPEED:
355 return S_IRUGO;
356 default:
357 return 0;
358 }
359 case ISCSI_PARAM:
360 switch (param) {
361 case ISCSI_PARAM_PERSISTENT_ADDRESS:
362 case ISCSI_PARAM_PERSISTENT_PORT:
363 case ISCSI_PARAM_CONN_ADDRESS:
364 case ISCSI_PARAM_CONN_PORT:
365 case ISCSI_PARAM_TARGET_NAME:
366 case ISCSI_PARAM_TPGT:
367 case ISCSI_PARAM_TARGET_ALIAS:
368 case ISCSI_PARAM_MAX_BURST:
369 case ISCSI_PARAM_MAX_R2T:
370 case ISCSI_PARAM_FIRST_BURST:
371 case ISCSI_PARAM_MAX_RECV_DLENGTH:
372 case ISCSI_PARAM_MAX_XMIT_DLENGTH:
373 case ISCSI_PARAM_IFACE_NAME:
374 case ISCSI_PARAM_CHAP_OUT_IDX:
375 case ISCSI_PARAM_CHAP_IN_IDX:
376 case ISCSI_PARAM_USERNAME:
377 case ISCSI_PARAM_PASSWORD:
378 case ISCSI_PARAM_USERNAME_IN:
379 case ISCSI_PARAM_PASSWORD_IN:
380 case ISCSI_PARAM_AUTO_SND_TGT_DISABLE:
381 case ISCSI_PARAM_DISCOVERY_SESS:
382 case ISCSI_PARAM_PORTAL_TYPE:
383 case ISCSI_PARAM_CHAP_AUTH_EN:
384 case ISCSI_PARAM_DISCOVERY_LOGOUT_EN:
385 case ISCSI_PARAM_BIDI_CHAP_EN:
386 case ISCSI_PARAM_DISCOVERY_AUTH_OPTIONAL:
387 case ISCSI_PARAM_DEF_TIME2WAIT:
388 case ISCSI_PARAM_DEF_TIME2RETAIN:
389 case ISCSI_PARAM_HDRDGST_EN:
390 case ISCSI_PARAM_DATADGST_EN:
391 case ISCSI_PARAM_INITIAL_R2T_EN:
392 case ISCSI_PARAM_IMM_DATA_EN:
393 case ISCSI_PARAM_PDU_INORDER_EN:
394 case ISCSI_PARAM_DATASEQ_INORDER_EN:
395 case ISCSI_PARAM_MAX_SEGMENT_SIZE:
396 case ISCSI_PARAM_TCP_TIMESTAMP_STAT:
397 case ISCSI_PARAM_TCP_WSF_DISABLE:
398 case ISCSI_PARAM_TCP_NAGLE_DISABLE:
399 case ISCSI_PARAM_TCP_TIMER_SCALE:
400 case ISCSI_PARAM_TCP_TIMESTAMP_EN:
401 case ISCSI_PARAM_TCP_XMIT_WSF:
402 case ISCSI_PARAM_TCP_RECV_WSF:
403 case ISCSI_PARAM_IP_FRAGMENT_DISABLE:
404 case ISCSI_PARAM_IPV4_TOS:
405 case ISCSI_PARAM_IPV6_TC:
406 case ISCSI_PARAM_IPV6_FLOW_LABEL:
407 case ISCSI_PARAM_IS_FW_ASSIGNED_IPV6:
408 case ISCSI_PARAM_KEEPALIVE_TMO:
409 case ISCSI_PARAM_LOCAL_PORT:
410 case ISCSI_PARAM_ISID:
411 case ISCSI_PARAM_TSID:
412 case ISCSI_PARAM_DEF_TASKMGMT_TMO:
413 case ISCSI_PARAM_ERL:
414 case ISCSI_PARAM_STATSN:
415 case ISCSI_PARAM_EXP_STATSN:
416 case ISCSI_PARAM_DISCOVERY_PARENT_IDX:
417 case ISCSI_PARAM_DISCOVERY_PARENT_TYPE:
418 case ISCSI_PARAM_LOCAL_IPADDR:
419 return S_IRUGO;
420 default:
421 return 0;
422 }
423 case ISCSI_NET_PARAM:
424 switch (param) {
425 case ISCSI_NET_PARAM_IPV4_ADDR:
426 case ISCSI_NET_PARAM_IPV4_SUBNET:
427 case ISCSI_NET_PARAM_IPV4_GW:
428 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
429 case ISCSI_NET_PARAM_IFACE_ENABLE:
430 case ISCSI_NET_PARAM_IPV6_LINKLOCAL:
431 case ISCSI_NET_PARAM_IPV6_ADDR:
432 case ISCSI_NET_PARAM_IPV6_ROUTER:
433 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG:
434 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG:
435 case ISCSI_NET_PARAM_VLAN_ID:
436 case ISCSI_NET_PARAM_VLAN_PRIORITY:
437 case ISCSI_NET_PARAM_VLAN_ENABLED:
438 case ISCSI_NET_PARAM_MTU:
439 case ISCSI_NET_PARAM_PORT:
440 case ISCSI_NET_PARAM_IPADDR_STATE:
441 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_STATE:
442 case ISCSI_NET_PARAM_IPV6_ROUTER_STATE:
443 case ISCSI_NET_PARAM_DELAYED_ACK_EN:
444 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE:
445 case ISCSI_NET_PARAM_TCP_WSF_DISABLE:
446 case ISCSI_NET_PARAM_TCP_WSF:
447 case ISCSI_NET_PARAM_TCP_TIMER_SCALE:
448 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN:
449 case ISCSI_NET_PARAM_CACHE_ID:
450 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN:
451 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN:
452 case ISCSI_NET_PARAM_IPV4_TOS_EN:
453 case ISCSI_NET_PARAM_IPV4_TOS:
454 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN:
455 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN:
456 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID:
457 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN:
458 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN:
459 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID:
460 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN:
461 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE:
462 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN:
463 case ISCSI_NET_PARAM_REDIRECT_EN:
464 case ISCSI_NET_PARAM_IPV4_TTL:
465 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN:
466 case ISCSI_NET_PARAM_IPV6_MLD_EN:
467 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL:
468 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS:
469 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT:
470 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO:
471 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME:
472 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO:
473 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT:
474 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU:
475 return S_IRUGO;
476 default:
477 return 0;
478 }
479 case ISCSI_IFACE_PARAM:
480 switch (param) {
481 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO:
482 case ISCSI_IFACE_PARAM_HDRDGST_EN:
483 case ISCSI_IFACE_PARAM_DATADGST_EN:
484 case ISCSI_IFACE_PARAM_IMM_DATA_EN:
485 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN:
486 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN:
487 case ISCSI_IFACE_PARAM_PDU_INORDER_EN:
488 case ISCSI_IFACE_PARAM_ERL:
489 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH:
490 case ISCSI_IFACE_PARAM_FIRST_BURST:
491 case ISCSI_IFACE_PARAM_MAX_R2T:
492 case ISCSI_IFACE_PARAM_MAX_BURST:
493 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN:
494 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN:
495 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL:
496 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN:
497 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN:
498 case ISCSI_IFACE_PARAM_INITIATOR_NAME:
499 return S_IRUGO;
500 default:
501 return 0;
502 }
503 case ISCSI_FLASHNODE_PARAM:
504 switch (param) {
505 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6:
506 case ISCSI_FLASHNODE_PORTAL_TYPE:
507 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE:
508 case ISCSI_FLASHNODE_DISCOVERY_SESS:
509 case ISCSI_FLASHNODE_ENTRY_EN:
510 case ISCSI_FLASHNODE_HDR_DGST_EN:
511 case ISCSI_FLASHNODE_DATA_DGST_EN:
512 case ISCSI_FLASHNODE_IMM_DATA_EN:
513 case ISCSI_FLASHNODE_INITIAL_R2T_EN:
514 case ISCSI_FLASHNODE_DATASEQ_INORDER:
515 case ISCSI_FLASHNODE_PDU_INORDER:
516 case ISCSI_FLASHNODE_CHAP_AUTH_EN:
517 case ISCSI_FLASHNODE_SNACK_REQ_EN:
518 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN:
519 case ISCSI_FLASHNODE_BIDI_CHAP_EN:
520 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL:
521 case ISCSI_FLASHNODE_ERL:
522 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT:
523 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE:
524 case ISCSI_FLASHNODE_TCP_WSF_DISABLE:
525 case ISCSI_FLASHNODE_TCP_TIMER_SCALE:
526 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN:
527 case ISCSI_FLASHNODE_IP_FRAG_DISABLE:
528 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH:
529 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH:
530 case ISCSI_FLASHNODE_FIRST_BURST:
531 case ISCSI_FLASHNODE_DEF_TIME2WAIT:
532 case ISCSI_FLASHNODE_DEF_TIME2RETAIN:
533 case ISCSI_FLASHNODE_MAX_R2T:
534 case ISCSI_FLASHNODE_KEEPALIVE_TMO:
535 case ISCSI_FLASHNODE_ISID:
536 case ISCSI_FLASHNODE_TSID:
537 case ISCSI_FLASHNODE_PORT:
538 case ISCSI_FLASHNODE_MAX_BURST:
539 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO:
540 case ISCSI_FLASHNODE_IPADDR:
541 case ISCSI_FLASHNODE_ALIAS:
542 case ISCSI_FLASHNODE_REDIRECT_IPADDR:
543 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE:
544 case ISCSI_FLASHNODE_LOCAL_PORT:
545 case ISCSI_FLASHNODE_IPV4_TOS:
546 case ISCSI_FLASHNODE_IPV6_TC:
547 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL:
548 case ISCSI_FLASHNODE_NAME:
549 case ISCSI_FLASHNODE_TPGT:
550 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6:
551 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX:
552 case ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE:
553 case ISCSI_FLASHNODE_TCP_XMIT_WSF:
554 case ISCSI_FLASHNODE_TCP_RECV_WSF:
555 case ISCSI_FLASHNODE_CHAP_OUT_IDX:
556 case ISCSI_FLASHNODE_USERNAME:
557 case ISCSI_FLASHNODE_PASSWORD:
558 case ISCSI_FLASHNODE_STATSN:
559 case ISCSI_FLASHNODE_EXP_STATSN:
560 case ISCSI_FLASHNODE_IS_BOOT_TGT:
561 return S_IRUGO;
562 default:
563 return 0;
564 }
565 }
566
567 return 0;
568 }
569
570 /**
571 * qla4xxx_create chap_list - Create CHAP list from FLASH
572 * @ha: pointer to adapter structure
573 *
574 * Read flash and make a list of CHAP entries, during login when a CHAP entry
575 * is received, it will be checked in this list. If entry exist then the CHAP
576 * entry index is set in the DDB. If CHAP entry does not exist in this list
577 * then a new entry is added in FLASH in CHAP table and the index obtained is
578 * used in the DDB.
579 **/
580 static void qla4xxx_create_chap_list(struct scsi_qla_host *ha)
581 {
582 int rval = 0;
583 uint8_t *chap_flash_data = NULL;
584 uint32_t offset;
585 dma_addr_t chap_dma;
586 uint32_t chap_size = 0;
587
588 if (is_qla40XX(ha))
589 chap_size = MAX_CHAP_ENTRIES_40XX *
590 sizeof(struct ql4_chap_table);
591 else /* Single region contains CHAP info for both
592 * ports which is divided into half for each port.
593 */
594 chap_size = ha->hw.flt_chap_size / 2;
595
596 chap_flash_data = dma_alloc_coherent(&ha->pdev->dev, chap_size,
597 &chap_dma, GFP_KERNEL);
598 if (!chap_flash_data) {
599 ql4_printk(KERN_ERR, ha, "No memory for chap_flash_data\n");
600 return;
601 }
602
603 if (is_qla40XX(ha)) {
604 offset = FLASH_CHAP_OFFSET;
605 } else {
606 offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2);
607 if (ha->port_num == 1)
608 offset += chap_size;
609 }
610
611 rval = qla4xxx_get_flash(ha, chap_dma, offset, chap_size);
612 if (rval != QLA_SUCCESS)
613 goto exit_chap_list;
614
615 if (ha->chap_list == NULL)
616 ha->chap_list = vmalloc(chap_size);
617 if (ha->chap_list == NULL) {
618 ql4_printk(KERN_ERR, ha, "No memory for ha->chap_list\n");
619 goto exit_chap_list;
620 }
621
622 memset(ha->chap_list, 0, chap_size);
623 memcpy(ha->chap_list, chap_flash_data, chap_size);
624
625 exit_chap_list:
626 dma_free_coherent(&ha->pdev->dev, chap_size, chap_flash_data, chap_dma);
627 }
628
629 static int qla4xxx_get_chap_by_index(struct scsi_qla_host *ha,
630 int16_t chap_index,
631 struct ql4_chap_table **chap_entry)
632 {
633 int rval = QLA_ERROR;
634 int max_chap_entries;
635
636 if (!ha->chap_list) {
637 ql4_printk(KERN_ERR, ha, "CHAP table cache is empty!\n");
638 rval = QLA_ERROR;
639 goto exit_get_chap;
640 }
641
642 if (is_qla80XX(ha))
643 max_chap_entries = (ha->hw.flt_chap_size / 2) /
644 sizeof(struct ql4_chap_table);
645 else
646 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
647
648 if (chap_index > max_chap_entries) {
649 ql4_printk(KERN_ERR, ha, "Invalid Chap index\n");
650 rval = QLA_ERROR;
651 goto exit_get_chap;
652 }
653
654 *chap_entry = (struct ql4_chap_table *)ha->chap_list + chap_index;
655 if ((*chap_entry)->cookie !=
656 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) {
657 rval = QLA_ERROR;
658 *chap_entry = NULL;
659 } else {
660 rval = QLA_SUCCESS;
661 }
662
663 exit_get_chap:
664 return rval;
665 }
666
667 /**
668 * qla4xxx_find_free_chap_index - Find the first free chap index
669 * @ha: pointer to adapter structure
670 * @chap_index: CHAP index to be returned
671 *
672 * Find the first free chap index available in the chap table
673 *
674 * Note: Caller should acquire the chap lock before getting here.
675 **/
676 static int qla4xxx_find_free_chap_index(struct scsi_qla_host *ha,
677 uint16_t *chap_index)
678 {
679 int i, rval;
680 int free_index = -1;
681 int max_chap_entries = 0;
682 struct ql4_chap_table *chap_table;
683
684 if (is_qla80XX(ha))
685 max_chap_entries = (ha->hw.flt_chap_size / 2) /
686 sizeof(struct ql4_chap_table);
687 else
688 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
689
690 if (!ha->chap_list) {
691 ql4_printk(KERN_ERR, ha, "CHAP table cache is empty!\n");
692 rval = QLA_ERROR;
693 goto exit_find_chap;
694 }
695
696 for (i = 0; i < max_chap_entries; i++) {
697 chap_table = (struct ql4_chap_table *)ha->chap_list + i;
698
699 if ((chap_table->cookie !=
700 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) &&
701 (i > MAX_RESRV_CHAP_IDX)) {
702 free_index = i;
703 break;
704 }
705 }
706
707 if (free_index != -1) {
708 *chap_index = free_index;
709 rval = QLA_SUCCESS;
710 } else {
711 rval = QLA_ERROR;
712 }
713
714 exit_find_chap:
715 return rval;
716 }
717
718 static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx,
719 uint32_t *num_entries, char *buf)
720 {
721 struct scsi_qla_host *ha = to_qla_host(shost);
722 struct ql4_chap_table *chap_table;
723 struct iscsi_chap_rec *chap_rec;
724 int max_chap_entries = 0;
725 int valid_chap_entries = 0;
726 int ret = 0, i;
727
728 if (is_qla80XX(ha))
729 max_chap_entries = (ha->hw.flt_chap_size / 2) /
730 sizeof(struct ql4_chap_table);
731 else
732 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
733
734 ql4_printk(KERN_INFO, ha, "%s: num_entries = %d, CHAP idx = %d\n",
735 __func__, *num_entries, chap_tbl_idx);
736
737 if (!buf) {
738 ret = -ENOMEM;
739 goto exit_get_chap_list;
740 }
741
742 qla4xxx_create_chap_list(ha);
743
744 chap_rec = (struct iscsi_chap_rec *) buf;
745 mutex_lock(&ha->chap_sem);
746 for (i = chap_tbl_idx; i < max_chap_entries; i++) {
747 chap_table = (struct ql4_chap_table *)ha->chap_list + i;
748 if (chap_table->cookie !=
749 __constant_cpu_to_le16(CHAP_VALID_COOKIE))
750 continue;
751
752 chap_rec->chap_tbl_idx = i;
753 strlcpy(chap_rec->username, chap_table->name,
754 ISCSI_CHAP_AUTH_NAME_MAX_LEN);
755 strlcpy(chap_rec->password, chap_table->secret,
756 QL4_CHAP_MAX_SECRET_LEN);
757 chap_rec->password_length = chap_table->secret_len;
758
759 if (chap_table->flags & BIT_7) /* local */
760 chap_rec->chap_type = CHAP_TYPE_OUT;
761
762 if (chap_table->flags & BIT_6) /* peer */
763 chap_rec->chap_type = CHAP_TYPE_IN;
764
765 chap_rec++;
766
767 valid_chap_entries++;
768 if (valid_chap_entries == *num_entries)
769 break;
770 else
771 continue;
772 }
773 mutex_unlock(&ha->chap_sem);
774
775 exit_get_chap_list:
776 ql4_printk(KERN_INFO, ha, "%s: Valid CHAP Entries = %d\n",
777 __func__, valid_chap_entries);
778 *num_entries = valid_chap_entries;
779 return ret;
780 }
781
782 static int __qla4xxx_is_chap_active(struct device *dev, void *data)
783 {
784 int ret = 0;
785 uint16_t *chap_tbl_idx = (uint16_t *) data;
786 struct iscsi_cls_session *cls_session;
787 struct iscsi_session *sess;
788 struct ddb_entry *ddb_entry;
789
790 if (!iscsi_is_session_dev(dev))
791 goto exit_is_chap_active;
792
793 cls_session = iscsi_dev_to_session(dev);
794 sess = cls_session->dd_data;
795 ddb_entry = sess->dd_data;
796
797 if (iscsi_session_chkready(cls_session))
798 goto exit_is_chap_active;
799
800 if (ddb_entry->chap_tbl_idx == *chap_tbl_idx)
801 ret = 1;
802
803 exit_is_chap_active:
804 return ret;
805 }
806
807 static int qla4xxx_is_chap_active(struct Scsi_Host *shost,
808 uint16_t chap_tbl_idx)
809 {
810 int ret = 0;
811
812 ret = device_for_each_child(&shost->shost_gendev, &chap_tbl_idx,
813 __qla4xxx_is_chap_active);
814
815 return ret;
816 }
817
818 static int qla4xxx_delete_chap(struct Scsi_Host *shost, uint16_t chap_tbl_idx)
819 {
820 struct scsi_qla_host *ha = to_qla_host(shost);
821 struct ql4_chap_table *chap_table;
822 dma_addr_t chap_dma;
823 int max_chap_entries = 0;
824 uint32_t offset = 0;
825 uint32_t chap_size;
826 int ret = 0;
827
828 chap_table = dma_pool_alloc(ha->chap_dma_pool, GFP_KERNEL, &chap_dma);
829 if (chap_table == NULL)
830 return -ENOMEM;
831
832 memset(chap_table, 0, sizeof(struct ql4_chap_table));
833
834 if (is_qla80XX(ha))
835 max_chap_entries = (ha->hw.flt_chap_size / 2) /
836 sizeof(struct ql4_chap_table);
837 else
838 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
839
840 if (chap_tbl_idx > max_chap_entries) {
841 ret = -EINVAL;
842 goto exit_delete_chap;
843 }
844
845 /* Check if chap index is in use.
846 * If chap is in use don't delet chap entry */
847 ret = qla4xxx_is_chap_active(shost, chap_tbl_idx);
848 if (ret) {
849 ql4_printk(KERN_INFO, ha, "CHAP entry %d is in use, cannot "
850 "delete from flash\n", chap_tbl_idx);
851 ret = -EBUSY;
852 goto exit_delete_chap;
853 }
854
855 chap_size = sizeof(struct ql4_chap_table);
856 if (is_qla40XX(ha))
857 offset = FLASH_CHAP_OFFSET | (chap_tbl_idx * chap_size);
858 else {
859 offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2);
860 /* flt_chap_size is CHAP table size for both ports
861 * so divide it by 2 to calculate the offset for second port
862 */
863 if (ha->port_num == 1)
864 offset += (ha->hw.flt_chap_size / 2);
865 offset += (chap_tbl_idx * chap_size);
866 }
867
868 ret = qla4xxx_get_flash(ha, chap_dma, offset, chap_size);
869 if (ret != QLA_SUCCESS) {
870 ret = -EINVAL;
871 goto exit_delete_chap;
872 }
873
874 DEBUG2(ql4_printk(KERN_INFO, ha, "Chap Cookie: x%x\n",
875 __le16_to_cpu(chap_table->cookie)));
876
877 if (__le16_to_cpu(chap_table->cookie) != CHAP_VALID_COOKIE) {
878 ql4_printk(KERN_ERR, ha, "No valid chap entry found\n");
879 goto exit_delete_chap;
880 }
881
882 chap_table->cookie = __constant_cpu_to_le16(0xFFFF);
883
884 offset = FLASH_CHAP_OFFSET |
885 (chap_tbl_idx * sizeof(struct ql4_chap_table));
886 ret = qla4xxx_set_flash(ha, chap_dma, offset, chap_size,
887 FLASH_OPT_RMW_COMMIT);
888 if (ret == QLA_SUCCESS && ha->chap_list) {
889 mutex_lock(&ha->chap_sem);
890 /* Update ha chap_list cache */
891 memcpy((struct ql4_chap_table *)ha->chap_list + chap_tbl_idx,
892 chap_table, sizeof(struct ql4_chap_table));
893 mutex_unlock(&ha->chap_sem);
894 }
895 if (ret != QLA_SUCCESS)
896 ret = -EINVAL;
897
898 exit_delete_chap:
899 dma_pool_free(ha->chap_dma_pool, chap_table, chap_dma);
900 return ret;
901 }
902
903 /**
904 * qla4xxx_set_chap_entry - Make chap entry with given information
905 * @shost: pointer to host
906 * @data: chap info - credentials, index and type to make chap entry
907 * @len: length of data
908 *
909 * Add or update chap entry with the given information
910 **/
911 static int qla4xxx_set_chap_entry(struct Scsi_Host *shost, void *data, int len)
912 {
913 struct scsi_qla_host *ha = to_qla_host(shost);
914 struct iscsi_chap_rec chap_rec;
915 struct ql4_chap_table *chap_entry = NULL;
916 struct iscsi_param_info *param_info;
917 struct nlattr *attr;
918 int max_chap_entries = 0;
919 int type;
920 int rem = len;
921 int rc = 0;
922 int size;
923
924 memset(&chap_rec, 0, sizeof(chap_rec));
925
926 nla_for_each_attr(attr, data, len, rem) {
927 param_info = nla_data(attr);
928
929 switch (param_info->param) {
930 case ISCSI_CHAP_PARAM_INDEX:
931 chap_rec.chap_tbl_idx = *(uint16_t *)param_info->value;
932 break;
933 case ISCSI_CHAP_PARAM_CHAP_TYPE:
934 chap_rec.chap_type = param_info->value[0];
935 break;
936 case ISCSI_CHAP_PARAM_USERNAME:
937 size = min_t(size_t, sizeof(chap_rec.username),
938 param_info->len);
939 memcpy(chap_rec.username, param_info->value, size);
940 break;
941 case ISCSI_CHAP_PARAM_PASSWORD:
942 size = min_t(size_t, sizeof(chap_rec.password),
943 param_info->len);
944 memcpy(chap_rec.password, param_info->value, size);
945 break;
946 case ISCSI_CHAP_PARAM_PASSWORD_LEN:
947 chap_rec.password_length = param_info->value[0];
948 break;
949 default:
950 ql4_printk(KERN_ERR, ha,
951 "%s: No such sysfs attribute\n", __func__);
952 rc = -ENOSYS;
953 goto exit_set_chap;
954 };
955 }
956
957 if (chap_rec.chap_type == CHAP_TYPE_IN)
958 type = BIDI_CHAP;
959 else
960 type = LOCAL_CHAP;
961
962 if (is_qla80XX(ha))
963 max_chap_entries = (ha->hw.flt_chap_size / 2) /
964 sizeof(struct ql4_chap_table);
965 else
966 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
967
968 mutex_lock(&ha->chap_sem);
969 if (chap_rec.chap_tbl_idx < max_chap_entries) {
970 rc = qla4xxx_get_chap_by_index(ha, chap_rec.chap_tbl_idx,
971 &chap_entry);
972 if (!rc) {
973 if (!(type == qla4xxx_get_chap_type(chap_entry))) {
974 ql4_printk(KERN_INFO, ha,
975 "Type mismatch for CHAP entry %d\n",
976 chap_rec.chap_tbl_idx);
977 rc = -EINVAL;
978 goto exit_unlock_chap;
979 }
980
981 /* If chap index is in use then don't modify it */
982 rc = qla4xxx_is_chap_active(shost,
983 chap_rec.chap_tbl_idx);
984 if (rc) {
985 ql4_printk(KERN_INFO, ha,
986 "CHAP entry %d is in use\n",
987 chap_rec.chap_tbl_idx);
988 rc = -EBUSY;
989 goto exit_unlock_chap;
990 }
991 }
992 } else {
993 rc = qla4xxx_find_free_chap_index(ha, &chap_rec.chap_tbl_idx);
994 if (rc) {
995 ql4_printk(KERN_INFO, ha, "CHAP entry not available\n");
996 rc = -EBUSY;
997 goto exit_unlock_chap;
998 }
999 }
1000
1001 rc = qla4xxx_set_chap(ha, chap_rec.username, chap_rec.password,
1002 chap_rec.chap_tbl_idx, type);
1003
1004 exit_unlock_chap:
1005 mutex_unlock(&ha->chap_sem);
1006
1007 exit_set_chap:
1008 return rc;
1009 }
1010
1011
1012 static int qla4xxx_get_host_stats(struct Scsi_Host *shost, char *buf, int len)
1013 {
1014 struct scsi_qla_host *ha = to_qla_host(shost);
1015 struct iscsi_offload_host_stats *host_stats = NULL;
1016 int host_stats_size;
1017 int ret = 0;
1018 int ddb_idx = 0;
1019 struct ql_iscsi_stats *ql_iscsi_stats = NULL;
1020 int stats_size;
1021 dma_addr_t iscsi_stats_dma;
1022
1023 DEBUG2(ql4_printk(KERN_INFO, ha, "Func: %s\n", __func__));
1024
1025 host_stats_size = sizeof(struct iscsi_offload_host_stats);
1026
1027 if (host_stats_size != len) {
1028 ql4_printk(KERN_INFO, ha, "%s: host_stats size mismatch expected = %d, is = %d\n",
1029 __func__, len, host_stats_size);
1030 ret = -EINVAL;
1031 goto exit_host_stats;
1032 }
1033 host_stats = (struct iscsi_offload_host_stats *)buf;
1034
1035 if (!buf) {
1036 ret = -ENOMEM;
1037 goto exit_host_stats;
1038 }
1039
1040 stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats));
1041
1042 ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size,
1043 &iscsi_stats_dma, GFP_KERNEL);
1044 if (!ql_iscsi_stats) {
1045 ql4_printk(KERN_ERR, ha,
1046 "Unable to allocate memory for iscsi stats\n");
1047 ret = -ENOMEM;
1048 goto exit_host_stats;
1049 }
1050
1051 ret = qla4xxx_get_mgmt_data(ha, ddb_idx, stats_size,
1052 iscsi_stats_dma);
1053 if (ret != QLA_SUCCESS) {
1054 ql4_printk(KERN_ERR, ha,
1055 "Unable to retrieve iscsi stats\n");
1056 ret = -EIO;
1057 goto exit_host_stats;
1058 }
1059 host_stats->mactx_frames = le64_to_cpu(ql_iscsi_stats->mac_tx_frames);
1060 host_stats->mactx_bytes = le64_to_cpu(ql_iscsi_stats->mac_tx_bytes);
1061 host_stats->mactx_multicast_frames =
1062 le64_to_cpu(ql_iscsi_stats->mac_tx_multicast_frames);
1063 host_stats->mactx_broadcast_frames =
1064 le64_to_cpu(ql_iscsi_stats->mac_tx_broadcast_frames);
1065 host_stats->mactx_pause_frames =
1066 le64_to_cpu(ql_iscsi_stats->mac_tx_pause_frames);
1067 host_stats->mactx_control_frames =
1068 le64_to_cpu(ql_iscsi_stats->mac_tx_control_frames);
1069 host_stats->mactx_deferral =
1070 le64_to_cpu(ql_iscsi_stats->mac_tx_deferral);
1071 host_stats->mactx_excess_deferral =
1072 le64_to_cpu(ql_iscsi_stats->mac_tx_excess_deferral);
1073 host_stats->mactx_late_collision =
1074 le64_to_cpu(ql_iscsi_stats->mac_tx_late_collision);
1075 host_stats->mactx_abort = le64_to_cpu(ql_iscsi_stats->mac_tx_abort);
1076 host_stats->mactx_single_collision =
1077 le64_to_cpu(ql_iscsi_stats->mac_tx_single_collision);
1078 host_stats->mactx_multiple_collision =
1079 le64_to_cpu(ql_iscsi_stats->mac_tx_multiple_collision);
1080 host_stats->mactx_collision =
1081 le64_to_cpu(ql_iscsi_stats->mac_tx_collision);
1082 host_stats->mactx_frames_dropped =
1083 le64_to_cpu(ql_iscsi_stats->mac_tx_frames_dropped);
1084 host_stats->mactx_jumbo_frames =
1085 le64_to_cpu(ql_iscsi_stats->mac_tx_jumbo_frames);
1086 host_stats->macrx_frames = le64_to_cpu(ql_iscsi_stats->mac_rx_frames);
1087 host_stats->macrx_bytes = le64_to_cpu(ql_iscsi_stats->mac_rx_bytes);
1088 host_stats->macrx_unknown_control_frames =
1089 le64_to_cpu(ql_iscsi_stats->mac_rx_unknown_control_frames);
1090 host_stats->macrx_pause_frames =
1091 le64_to_cpu(ql_iscsi_stats->mac_rx_pause_frames);
1092 host_stats->macrx_control_frames =
1093 le64_to_cpu(ql_iscsi_stats->mac_rx_control_frames);
1094 host_stats->macrx_dribble =
1095 le64_to_cpu(ql_iscsi_stats->mac_rx_dribble);
1096 host_stats->macrx_frame_length_error =
1097 le64_to_cpu(ql_iscsi_stats->mac_rx_frame_length_error);
1098 host_stats->macrx_jabber = le64_to_cpu(ql_iscsi_stats->mac_rx_jabber);
1099 host_stats->macrx_carrier_sense_error =
1100 le64_to_cpu(ql_iscsi_stats->mac_rx_carrier_sense_error);
1101 host_stats->macrx_frame_discarded =
1102 le64_to_cpu(ql_iscsi_stats->mac_rx_frame_discarded);
1103 host_stats->macrx_frames_dropped =
1104 le64_to_cpu(ql_iscsi_stats->mac_rx_frames_dropped);
1105 host_stats->mac_crc_error = le64_to_cpu(ql_iscsi_stats->mac_crc_error);
1106 host_stats->mac_encoding_error =
1107 le64_to_cpu(ql_iscsi_stats->mac_encoding_error);
1108 host_stats->macrx_length_error_large =
1109 le64_to_cpu(ql_iscsi_stats->mac_rx_length_error_large);
1110 host_stats->macrx_length_error_small =
1111 le64_to_cpu(ql_iscsi_stats->mac_rx_length_error_small);
1112 host_stats->macrx_multicast_frames =
1113 le64_to_cpu(ql_iscsi_stats->mac_rx_multicast_frames);
1114 host_stats->macrx_broadcast_frames =
1115 le64_to_cpu(ql_iscsi_stats->mac_rx_broadcast_frames);
1116 host_stats->iptx_packets = le64_to_cpu(ql_iscsi_stats->ip_tx_packets);
1117 host_stats->iptx_bytes = le64_to_cpu(ql_iscsi_stats->ip_tx_bytes);
1118 host_stats->iptx_fragments =
1119 le64_to_cpu(ql_iscsi_stats->ip_tx_fragments);
1120 host_stats->iprx_packets = le64_to_cpu(ql_iscsi_stats->ip_rx_packets);
1121 host_stats->iprx_bytes = le64_to_cpu(ql_iscsi_stats->ip_rx_bytes);
1122 host_stats->iprx_fragments =
1123 le64_to_cpu(ql_iscsi_stats->ip_rx_fragments);
1124 host_stats->ip_datagram_reassembly =
1125 le64_to_cpu(ql_iscsi_stats->ip_datagram_reassembly);
1126 host_stats->ip_invalid_address_error =
1127 le64_to_cpu(ql_iscsi_stats->ip_invalid_address_error);
1128 host_stats->ip_error_packets =
1129 le64_to_cpu(ql_iscsi_stats->ip_error_packets);
1130 host_stats->ip_fragrx_overlap =
1131 le64_to_cpu(ql_iscsi_stats->ip_fragrx_overlap);
1132 host_stats->ip_fragrx_outoforder =
1133 le64_to_cpu(ql_iscsi_stats->ip_fragrx_outoforder);
1134 host_stats->ip_datagram_reassembly_timeout =
1135 le64_to_cpu(ql_iscsi_stats->ip_datagram_reassembly_timeout);
1136 host_stats->ipv6tx_packets =
1137 le64_to_cpu(ql_iscsi_stats->ipv6_tx_packets);
1138 host_stats->ipv6tx_bytes = le64_to_cpu(ql_iscsi_stats->ipv6_tx_bytes);
1139 host_stats->ipv6tx_fragments =
1140 le64_to_cpu(ql_iscsi_stats->ipv6_tx_fragments);
1141 host_stats->ipv6rx_packets =
1142 le64_to_cpu(ql_iscsi_stats->ipv6_rx_packets);
1143 host_stats->ipv6rx_bytes = le64_to_cpu(ql_iscsi_stats->ipv6_rx_bytes);
1144 host_stats->ipv6rx_fragments =
1145 le64_to_cpu(ql_iscsi_stats->ipv6_rx_fragments);
1146 host_stats->ipv6_datagram_reassembly =
1147 le64_to_cpu(ql_iscsi_stats->ipv6_datagram_reassembly);
1148 host_stats->ipv6_invalid_address_error =
1149 le64_to_cpu(ql_iscsi_stats->ipv6_invalid_address_error);
1150 host_stats->ipv6_error_packets =
1151 le64_to_cpu(ql_iscsi_stats->ipv6_error_packets);
1152 host_stats->ipv6_fragrx_overlap =
1153 le64_to_cpu(ql_iscsi_stats->ipv6_fragrx_overlap);
1154 host_stats->ipv6_fragrx_outoforder =
1155 le64_to_cpu(ql_iscsi_stats->ipv6_fragrx_outoforder);
1156 host_stats->ipv6_datagram_reassembly_timeout =
1157 le64_to_cpu(ql_iscsi_stats->ipv6_datagram_reassembly_timeout);
1158 host_stats->tcptx_segments =
1159 le64_to_cpu(ql_iscsi_stats->tcp_tx_segments);
1160 host_stats->tcptx_bytes = le64_to_cpu(ql_iscsi_stats->tcp_tx_bytes);
1161 host_stats->tcprx_segments =
1162 le64_to_cpu(ql_iscsi_stats->tcp_rx_segments);
1163 host_stats->tcprx_byte = le64_to_cpu(ql_iscsi_stats->tcp_rx_byte);
1164 host_stats->tcp_duplicate_ack_retx =
1165 le64_to_cpu(ql_iscsi_stats->tcp_duplicate_ack_retx);
1166 host_stats->tcp_retx_timer_expired =
1167 le64_to_cpu(ql_iscsi_stats->tcp_retx_timer_expired);
1168 host_stats->tcprx_duplicate_ack =
1169 le64_to_cpu(ql_iscsi_stats->tcp_rx_duplicate_ack);
1170 host_stats->tcprx_pure_ackr =
1171 le64_to_cpu(ql_iscsi_stats->tcp_rx_pure_ackr);
1172 host_stats->tcptx_delayed_ack =
1173 le64_to_cpu(ql_iscsi_stats->tcp_tx_delayed_ack);
1174 host_stats->tcptx_pure_ack =
1175 le64_to_cpu(ql_iscsi_stats->tcp_tx_pure_ack);
1176 host_stats->tcprx_segment_error =
1177 le64_to_cpu(ql_iscsi_stats->tcp_rx_segment_error);
1178 host_stats->tcprx_segment_outoforder =
1179 le64_to_cpu(ql_iscsi_stats->tcp_rx_segment_outoforder);
1180 host_stats->tcprx_window_probe =
1181 le64_to_cpu(ql_iscsi_stats->tcp_rx_window_probe);
1182 host_stats->tcprx_window_update =
1183 le64_to_cpu(ql_iscsi_stats->tcp_rx_window_update);
1184 host_stats->tcptx_window_probe_persist =
1185 le64_to_cpu(ql_iscsi_stats->tcp_tx_window_probe_persist);
1186 host_stats->ecc_error_correction =
1187 le64_to_cpu(ql_iscsi_stats->ecc_error_correction);
1188 host_stats->iscsi_pdu_tx = le64_to_cpu(ql_iscsi_stats->iscsi_pdu_tx);
1189 host_stats->iscsi_data_bytes_tx =
1190 le64_to_cpu(ql_iscsi_stats->iscsi_data_bytes_tx);
1191 host_stats->iscsi_pdu_rx = le64_to_cpu(ql_iscsi_stats->iscsi_pdu_rx);
1192 host_stats->iscsi_data_bytes_rx =
1193 le64_to_cpu(ql_iscsi_stats->iscsi_data_bytes_rx);
1194 host_stats->iscsi_io_completed =
1195 le64_to_cpu(ql_iscsi_stats->iscsi_io_completed);
1196 host_stats->iscsi_unexpected_io_rx =
1197 le64_to_cpu(ql_iscsi_stats->iscsi_unexpected_io_rx);
1198 host_stats->iscsi_format_error =
1199 le64_to_cpu(ql_iscsi_stats->iscsi_format_error);
1200 host_stats->iscsi_hdr_digest_error =
1201 le64_to_cpu(ql_iscsi_stats->iscsi_hdr_digest_error);
1202 host_stats->iscsi_data_digest_error =
1203 le64_to_cpu(ql_iscsi_stats->iscsi_data_digest_error);
1204 host_stats->iscsi_sequence_error =
1205 le64_to_cpu(ql_iscsi_stats->iscsi_sequence_error);
1206 exit_host_stats:
1207 if (ql_iscsi_stats)
1208 dma_free_coherent(&ha->pdev->dev, host_stats_size,
1209 ql_iscsi_stats, iscsi_stats_dma);
1210
1211 ql4_printk(KERN_INFO, ha, "%s: Get host stats done\n",
1212 __func__);
1213 return ret;
1214 }
1215
1216 static int qla4xxx_get_iface_param(struct iscsi_iface *iface,
1217 enum iscsi_param_type param_type,
1218 int param, char *buf)
1219 {
1220 struct Scsi_Host *shost = iscsi_iface_to_shost(iface);
1221 struct scsi_qla_host *ha = to_qla_host(shost);
1222 int ival;
1223 char *pval = NULL;
1224 int len = -ENOSYS;
1225
1226 if (param_type == ISCSI_NET_PARAM) {
1227 switch (param) {
1228 case ISCSI_NET_PARAM_IPV4_ADDR:
1229 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address);
1230 break;
1231 case ISCSI_NET_PARAM_IPV4_SUBNET:
1232 len = sprintf(buf, "%pI4\n",
1233 &ha->ip_config.subnet_mask);
1234 break;
1235 case ISCSI_NET_PARAM_IPV4_GW:
1236 len = sprintf(buf, "%pI4\n", &ha->ip_config.gateway);
1237 break;
1238 case ISCSI_NET_PARAM_IFACE_ENABLE:
1239 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1240 OP_STATE(ha->ip_config.ipv4_options,
1241 IPOPT_IPV4_PROTOCOL_ENABLE, pval);
1242 } else {
1243 OP_STATE(ha->ip_config.ipv6_options,
1244 IPV6_OPT_IPV6_PROTOCOL_ENABLE, pval);
1245 }
1246
1247 len = sprintf(buf, "%s\n", pval);
1248 break;
1249 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
1250 len = sprintf(buf, "%s\n",
1251 (ha->ip_config.tcp_options &
1252 TCPOPT_DHCP_ENABLE) ?
1253 "dhcp" : "static");
1254 break;
1255 case ISCSI_NET_PARAM_IPV6_ADDR:
1256 if (iface->iface_num == 0)
1257 len = sprintf(buf, "%pI6\n",
1258 &ha->ip_config.ipv6_addr0);
1259 if (iface->iface_num == 1)
1260 len = sprintf(buf, "%pI6\n",
1261 &ha->ip_config.ipv6_addr1);
1262 break;
1263 case ISCSI_NET_PARAM_IPV6_LINKLOCAL:
1264 len = sprintf(buf, "%pI6\n",
1265 &ha->ip_config.ipv6_link_local_addr);
1266 break;
1267 case ISCSI_NET_PARAM_IPV6_ROUTER:
1268 len = sprintf(buf, "%pI6\n",
1269 &ha->ip_config.ipv6_default_router_addr);
1270 break;
1271 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG:
1272 pval = (ha->ip_config.ipv6_addl_options &
1273 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE) ?
1274 "nd" : "static";
1275
1276 len = sprintf(buf, "%s\n", pval);
1277 break;
1278 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG:
1279 pval = (ha->ip_config.ipv6_addl_options &
1280 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR) ?
1281 "auto" : "static";
1282
1283 len = sprintf(buf, "%s\n", pval);
1284 break;
1285 case ISCSI_NET_PARAM_VLAN_ID:
1286 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1287 ival = ha->ip_config.ipv4_vlan_tag &
1288 ISCSI_MAX_VLAN_ID;
1289 else
1290 ival = ha->ip_config.ipv6_vlan_tag &
1291 ISCSI_MAX_VLAN_ID;
1292
1293 len = sprintf(buf, "%d\n", ival);
1294 break;
1295 case ISCSI_NET_PARAM_VLAN_PRIORITY:
1296 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1297 ival = (ha->ip_config.ipv4_vlan_tag >> 13) &
1298 ISCSI_MAX_VLAN_PRIORITY;
1299 else
1300 ival = (ha->ip_config.ipv6_vlan_tag >> 13) &
1301 ISCSI_MAX_VLAN_PRIORITY;
1302
1303 len = sprintf(buf, "%d\n", ival);
1304 break;
1305 case ISCSI_NET_PARAM_VLAN_ENABLED:
1306 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1307 OP_STATE(ha->ip_config.ipv4_options,
1308 IPOPT_VLAN_TAGGING_ENABLE, pval);
1309 } else {
1310 OP_STATE(ha->ip_config.ipv6_options,
1311 IPV6_OPT_VLAN_TAGGING_ENABLE, pval);
1312 }
1313 len = sprintf(buf, "%s\n", pval);
1314 break;
1315 case ISCSI_NET_PARAM_MTU:
1316 len = sprintf(buf, "%d\n", ha->ip_config.eth_mtu_size);
1317 break;
1318 case ISCSI_NET_PARAM_PORT:
1319 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1320 len = sprintf(buf, "%d\n",
1321 ha->ip_config.ipv4_port);
1322 else
1323 len = sprintf(buf, "%d\n",
1324 ha->ip_config.ipv6_port);
1325 break;
1326 case ISCSI_NET_PARAM_IPADDR_STATE:
1327 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1328 pval = iscsi_get_ipaddress_state_name(
1329 ha->ip_config.ipv4_addr_state);
1330 } else {
1331 if (iface->iface_num == 0)
1332 pval = iscsi_get_ipaddress_state_name(
1333 ha->ip_config.ipv6_addr0_state);
1334 else if (iface->iface_num == 1)
1335 pval = iscsi_get_ipaddress_state_name(
1336 ha->ip_config.ipv6_addr1_state);
1337 }
1338
1339 len = sprintf(buf, "%s\n", pval);
1340 break;
1341 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_STATE:
1342 pval = iscsi_get_ipaddress_state_name(
1343 ha->ip_config.ipv6_link_local_state);
1344 len = sprintf(buf, "%s\n", pval);
1345 break;
1346 case ISCSI_NET_PARAM_IPV6_ROUTER_STATE:
1347 pval = iscsi_get_router_state_name(
1348 ha->ip_config.ipv6_default_router_state);
1349 len = sprintf(buf, "%s\n", pval);
1350 break;
1351 case ISCSI_NET_PARAM_DELAYED_ACK_EN:
1352 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1353 OP_STATE(~ha->ip_config.tcp_options,
1354 TCPOPT_DELAYED_ACK_DISABLE, pval);
1355 } else {
1356 OP_STATE(~ha->ip_config.ipv6_tcp_options,
1357 IPV6_TCPOPT_DELAYED_ACK_DISABLE, pval);
1358 }
1359 len = sprintf(buf, "%s\n", pval);
1360 break;
1361 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE:
1362 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1363 OP_STATE(~ha->ip_config.tcp_options,
1364 TCPOPT_NAGLE_ALGO_DISABLE, pval);
1365 } else {
1366 OP_STATE(~ha->ip_config.ipv6_tcp_options,
1367 IPV6_TCPOPT_NAGLE_ALGO_DISABLE, pval);
1368 }
1369 len = sprintf(buf, "%s\n", pval);
1370 break;
1371 case ISCSI_NET_PARAM_TCP_WSF_DISABLE:
1372 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1373 OP_STATE(~ha->ip_config.tcp_options,
1374 TCPOPT_WINDOW_SCALE_DISABLE, pval);
1375 } else {
1376 OP_STATE(~ha->ip_config.ipv6_tcp_options,
1377 IPV6_TCPOPT_WINDOW_SCALE_DISABLE,
1378 pval);
1379 }
1380 len = sprintf(buf, "%s\n", pval);
1381 break;
1382 case ISCSI_NET_PARAM_TCP_WSF:
1383 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1384 len = sprintf(buf, "%d\n",
1385 ha->ip_config.tcp_wsf);
1386 else
1387 len = sprintf(buf, "%d\n",
1388 ha->ip_config.ipv6_tcp_wsf);
1389 break;
1390 case ISCSI_NET_PARAM_TCP_TIMER_SCALE:
1391 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1392 ival = (ha->ip_config.tcp_options &
1393 TCPOPT_TIMER_SCALE) >> 1;
1394 else
1395 ival = (ha->ip_config.ipv6_tcp_options &
1396 IPV6_TCPOPT_TIMER_SCALE) >> 1;
1397
1398 len = sprintf(buf, "%d\n", ival);
1399 break;
1400 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN:
1401 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1402 OP_STATE(ha->ip_config.tcp_options,
1403 TCPOPT_TIMESTAMP_ENABLE, pval);
1404 } else {
1405 OP_STATE(ha->ip_config.ipv6_tcp_options,
1406 IPV6_TCPOPT_TIMESTAMP_EN, pval);
1407 }
1408 len = sprintf(buf, "%s\n", pval);
1409 break;
1410 case ISCSI_NET_PARAM_CACHE_ID:
1411 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1412 len = sprintf(buf, "%d\n",
1413 ha->ip_config.ipv4_cache_id);
1414 else
1415 len = sprintf(buf, "%d\n",
1416 ha->ip_config.ipv6_cache_id);
1417 break;
1418 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN:
1419 OP_STATE(ha->ip_config.tcp_options,
1420 TCPOPT_DNS_SERVER_IP_EN, pval);
1421
1422 len = sprintf(buf, "%s\n", pval);
1423 break;
1424 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN:
1425 OP_STATE(ha->ip_config.tcp_options,
1426 TCPOPT_SLP_DA_INFO_EN, pval);
1427
1428 len = sprintf(buf, "%s\n", pval);
1429 break;
1430 case ISCSI_NET_PARAM_IPV4_TOS_EN:
1431 OP_STATE(ha->ip_config.ipv4_options,
1432 IPOPT_IPV4_TOS_EN, pval);
1433
1434 len = sprintf(buf, "%s\n", pval);
1435 break;
1436 case ISCSI_NET_PARAM_IPV4_TOS:
1437 len = sprintf(buf, "%d\n", ha->ip_config.ipv4_tos);
1438 break;
1439 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN:
1440 OP_STATE(ha->ip_config.ipv4_options,
1441 IPOPT_GRAT_ARP_EN, pval);
1442
1443 len = sprintf(buf, "%s\n", pval);
1444 break;
1445 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN:
1446 OP_STATE(ha->ip_config.ipv4_options, IPOPT_ALT_CID_EN,
1447 pval);
1448
1449 len = sprintf(buf, "%s\n", pval);
1450 break;
1451 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID:
1452 pval = (ha->ip_config.ipv4_alt_cid_len) ?
1453 (char *)ha->ip_config.ipv4_alt_cid : "";
1454
1455 len = sprintf(buf, "%s\n", pval);
1456 break;
1457 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN:
1458 OP_STATE(ha->ip_config.ipv4_options,
1459 IPOPT_REQ_VID_EN, pval);
1460
1461 len = sprintf(buf, "%s\n", pval);
1462 break;
1463 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN:
1464 OP_STATE(ha->ip_config.ipv4_options,
1465 IPOPT_USE_VID_EN, pval);
1466
1467 len = sprintf(buf, "%s\n", pval);
1468 break;
1469 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID:
1470 pval = (ha->ip_config.ipv4_vid_len) ?
1471 (char *)ha->ip_config.ipv4_vid : "";
1472
1473 len = sprintf(buf, "%s\n", pval);
1474 break;
1475 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN:
1476 OP_STATE(ha->ip_config.ipv4_options,
1477 IPOPT_LEARN_IQN_EN, pval);
1478
1479 len = sprintf(buf, "%s\n", pval);
1480 break;
1481 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE:
1482 OP_STATE(~ha->ip_config.ipv4_options,
1483 IPOPT_FRAGMENTATION_DISABLE, pval);
1484
1485 len = sprintf(buf, "%s\n", pval);
1486 break;
1487 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN:
1488 OP_STATE(ha->ip_config.ipv4_options,
1489 IPOPT_IN_FORWARD_EN, pval);
1490
1491 len = sprintf(buf, "%s\n", pval);
1492 break;
1493 case ISCSI_NET_PARAM_REDIRECT_EN:
1494 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1495 OP_STATE(ha->ip_config.ipv4_options,
1496 IPOPT_ARP_REDIRECT_EN, pval);
1497 } else {
1498 OP_STATE(ha->ip_config.ipv6_options,
1499 IPV6_OPT_REDIRECT_EN, pval);
1500 }
1501 len = sprintf(buf, "%s\n", pval);
1502 break;
1503 case ISCSI_NET_PARAM_IPV4_TTL:
1504 len = sprintf(buf, "%d\n", ha->ip_config.ipv4_ttl);
1505 break;
1506 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN:
1507 OP_STATE(ha->ip_config.ipv6_options,
1508 IPV6_OPT_GRAT_NEIGHBOR_ADV_EN, pval);
1509
1510 len = sprintf(buf, "%s\n", pval);
1511 break;
1512 case ISCSI_NET_PARAM_IPV6_MLD_EN:
1513 OP_STATE(ha->ip_config.ipv6_addl_options,
1514 IPV6_ADDOPT_MLD_EN, pval);
1515
1516 len = sprintf(buf, "%s\n", pval);
1517 break;
1518 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL:
1519 len = sprintf(buf, "%u\n", ha->ip_config.ipv6_flow_lbl);
1520 break;
1521 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS:
1522 len = sprintf(buf, "%d\n",
1523 ha->ip_config.ipv6_traffic_class);
1524 break;
1525 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT:
1526 len = sprintf(buf, "%d\n",
1527 ha->ip_config.ipv6_hop_limit);
1528 break;
1529 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO:
1530 len = sprintf(buf, "%d\n",
1531 ha->ip_config.ipv6_nd_reach_time);
1532 break;
1533 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME:
1534 len = sprintf(buf, "%d\n",
1535 ha->ip_config.ipv6_nd_rexmit_timer);
1536 break;
1537 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO:
1538 len = sprintf(buf, "%d\n",
1539 ha->ip_config.ipv6_nd_stale_timeout);
1540 break;
1541 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT:
1542 len = sprintf(buf, "%d\n",
1543 ha->ip_config.ipv6_dup_addr_detect_count);
1544 break;
1545 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU:
1546 len = sprintf(buf, "%d\n",
1547 ha->ip_config.ipv6_gw_advrt_mtu);
1548 break;
1549 default:
1550 len = -ENOSYS;
1551 }
1552 } else if (param_type == ISCSI_IFACE_PARAM) {
1553 switch (param) {
1554 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO:
1555 len = sprintf(buf, "%d\n", ha->ip_config.def_timeout);
1556 break;
1557 case ISCSI_IFACE_PARAM_HDRDGST_EN:
1558 OP_STATE(ha->ip_config.iscsi_options,
1559 ISCSIOPTS_HEADER_DIGEST_EN, pval);
1560
1561 len = sprintf(buf, "%s\n", pval);
1562 break;
1563 case ISCSI_IFACE_PARAM_DATADGST_EN:
1564 OP_STATE(ha->ip_config.iscsi_options,
1565 ISCSIOPTS_DATA_DIGEST_EN, pval);
1566
1567 len = sprintf(buf, "%s\n", pval);
1568 break;
1569 case ISCSI_IFACE_PARAM_IMM_DATA_EN:
1570 OP_STATE(ha->ip_config.iscsi_options,
1571 ISCSIOPTS_IMMEDIATE_DATA_EN, pval);
1572
1573 len = sprintf(buf, "%s\n", pval);
1574 break;
1575 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN:
1576 OP_STATE(ha->ip_config.iscsi_options,
1577 ISCSIOPTS_INITIAL_R2T_EN, pval);
1578
1579 len = sprintf(buf, "%s\n", pval);
1580 break;
1581 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN:
1582 OP_STATE(ha->ip_config.iscsi_options,
1583 ISCSIOPTS_DATA_SEQ_INORDER_EN, pval);
1584
1585 len = sprintf(buf, "%s\n", pval);
1586 break;
1587 case ISCSI_IFACE_PARAM_PDU_INORDER_EN:
1588 OP_STATE(ha->ip_config.iscsi_options,
1589 ISCSIOPTS_DATA_PDU_INORDER_EN, pval);
1590
1591 len = sprintf(buf, "%s\n", pval);
1592 break;
1593 case ISCSI_IFACE_PARAM_ERL:
1594 len = sprintf(buf, "%d\n",
1595 (ha->ip_config.iscsi_options &
1596 ISCSIOPTS_ERL));
1597 break;
1598 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH:
1599 len = sprintf(buf, "%u\n",
1600 ha->ip_config.iscsi_max_pdu_size *
1601 BYTE_UNITS);
1602 break;
1603 case ISCSI_IFACE_PARAM_FIRST_BURST:
1604 len = sprintf(buf, "%u\n",
1605 ha->ip_config.iscsi_first_burst_len *
1606 BYTE_UNITS);
1607 break;
1608 case ISCSI_IFACE_PARAM_MAX_R2T:
1609 len = sprintf(buf, "%d\n",
1610 ha->ip_config.iscsi_max_outstnd_r2t);
1611 break;
1612 case ISCSI_IFACE_PARAM_MAX_BURST:
1613 len = sprintf(buf, "%u\n",
1614 ha->ip_config.iscsi_max_burst_len *
1615 BYTE_UNITS);
1616 break;
1617 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN:
1618 OP_STATE(ha->ip_config.iscsi_options,
1619 ISCSIOPTS_CHAP_AUTH_EN, pval);
1620
1621 len = sprintf(buf, "%s\n", pval);
1622 break;
1623 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN:
1624 OP_STATE(ha->ip_config.iscsi_options,
1625 ISCSIOPTS_BIDI_CHAP_EN, pval);
1626
1627 len = sprintf(buf, "%s\n", pval);
1628 break;
1629 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL:
1630 OP_STATE(ha->ip_config.iscsi_options,
1631 ISCSIOPTS_DISCOVERY_AUTH_EN, pval);
1632
1633 len = sprintf(buf, "%s\n", pval);
1634 break;
1635 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN:
1636 OP_STATE(ha->ip_config.iscsi_options,
1637 ISCSIOPTS_DISCOVERY_LOGOUT_EN, pval);
1638
1639 len = sprintf(buf, "%s\n", pval);
1640 break;
1641 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN:
1642 OP_STATE(ha->ip_config.iscsi_options,
1643 ISCSIOPTS_STRICT_LOGIN_COMP_EN, pval);
1644
1645 len = sprintf(buf, "%s\n", pval);
1646 break;
1647 case ISCSI_IFACE_PARAM_INITIATOR_NAME:
1648 len = sprintf(buf, "%s\n", ha->ip_config.iscsi_name);
1649 break;
1650 default:
1651 len = -ENOSYS;
1652 }
1653 }
1654
1655 return len;
1656 }
1657
1658 static struct iscsi_endpoint *
1659 qla4xxx_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr,
1660 int non_blocking)
1661 {
1662 int ret;
1663 struct iscsi_endpoint *ep;
1664 struct qla_endpoint *qla_ep;
1665 struct scsi_qla_host *ha;
1666 struct sockaddr_in *addr;
1667 struct sockaddr_in6 *addr6;
1668
1669 if (!shost) {
1670 ret = -ENXIO;
1671 pr_err("%s: shost is NULL\n", __func__);
1672 return ERR_PTR(ret);
1673 }
1674
1675 ha = iscsi_host_priv(shost);
1676 ep = iscsi_create_endpoint(sizeof(struct qla_endpoint));
1677 if (!ep) {
1678 ret = -ENOMEM;
1679 return ERR_PTR(ret);
1680 }
1681
1682 qla_ep = ep->dd_data;
1683 memset(qla_ep, 0, sizeof(struct qla_endpoint));
1684 if (dst_addr->sa_family == AF_INET) {
1685 memcpy(&qla_ep->dst_addr, dst_addr, sizeof(struct sockaddr_in));
1686 addr = (struct sockaddr_in *)&qla_ep->dst_addr;
1687 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI4\n", __func__,
1688 (char *)&addr->sin_addr));
1689 } else if (dst_addr->sa_family == AF_INET6) {
1690 memcpy(&qla_ep->dst_addr, dst_addr,
1691 sizeof(struct sockaddr_in6));
1692 addr6 = (struct sockaddr_in6 *)&qla_ep->dst_addr;
1693 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI6\n", __func__,
1694 (char *)&addr6->sin6_addr));
1695 } else {
1696 ql4_printk(KERN_WARNING, ha, "%s: Invalid endpoint\n",
1697 __func__);
1698 }
1699
1700 qla_ep->host = shost;
1701
1702 return ep;
1703 }
1704
1705 static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms)
1706 {
1707 struct qla_endpoint *qla_ep;
1708 struct scsi_qla_host *ha;
1709 int ret = 0;
1710
1711 qla_ep = ep->dd_data;
1712 ha = to_qla_host(qla_ep->host);
1713 DEBUG2(pr_info_ratelimited("%s: host: %ld\n", __func__, ha->host_no));
1714
1715 if (adapter_up(ha) && !test_bit(AF_BUILD_DDB_LIST, &ha->flags))
1716 ret = 1;
1717
1718 return ret;
1719 }
1720
1721 static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep)
1722 {
1723 struct qla_endpoint *qla_ep;
1724 struct scsi_qla_host *ha;
1725
1726 qla_ep = ep->dd_data;
1727 ha = to_qla_host(qla_ep->host);
1728 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__,
1729 ha->host_no));
1730 iscsi_destroy_endpoint(ep);
1731 }
1732
1733 static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep,
1734 enum iscsi_param param,
1735 char *buf)
1736 {
1737 struct qla_endpoint *qla_ep = ep->dd_data;
1738 struct sockaddr *dst_addr;
1739 struct scsi_qla_host *ha;
1740
1741 if (!qla_ep)
1742 return -ENOTCONN;
1743
1744 ha = to_qla_host(qla_ep->host);
1745 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__,
1746 ha->host_no));
1747
1748 switch (param) {
1749 case ISCSI_PARAM_CONN_PORT:
1750 case ISCSI_PARAM_CONN_ADDRESS:
1751 dst_addr = (struct sockaddr *)&qla_ep->dst_addr;
1752 if (!dst_addr)
1753 return -ENOTCONN;
1754
1755 return iscsi_conn_get_addr_param((struct sockaddr_storage *)
1756 &qla_ep->dst_addr, param, buf);
1757 default:
1758 return -ENOSYS;
1759 }
1760 }
1761
1762 static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn,
1763 struct iscsi_stats *stats)
1764 {
1765 struct iscsi_session *sess;
1766 struct iscsi_cls_session *cls_sess;
1767 struct ddb_entry *ddb_entry;
1768 struct scsi_qla_host *ha;
1769 struct ql_iscsi_stats *ql_iscsi_stats;
1770 int stats_size;
1771 int ret;
1772 dma_addr_t iscsi_stats_dma;
1773
1774 cls_sess = iscsi_conn_to_session(cls_conn);
1775 sess = cls_sess->dd_data;
1776 ddb_entry = sess->dd_data;
1777 ha = ddb_entry->ha;
1778
1779 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__,
1780 ha->host_no));
1781 stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats));
1782 /* Allocate memory */
1783 ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size,
1784 &iscsi_stats_dma, GFP_KERNEL);
1785 if (!ql_iscsi_stats) {
1786 ql4_printk(KERN_ERR, ha,
1787 "Unable to allocate memory for iscsi stats\n");
1788 goto exit_get_stats;
1789 }
1790
1791 ret = qla4xxx_get_mgmt_data(ha, ddb_entry->fw_ddb_index, stats_size,
1792 iscsi_stats_dma);
1793 if (ret != QLA_SUCCESS) {
1794 ql4_printk(KERN_ERR, ha,
1795 "Unable to retrieve iscsi stats\n");
1796 goto free_stats;
1797 }
1798
1799 /* octets */
1800 stats->txdata_octets = le64_to_cpu(ql_iscsi_stats->tx_data_octets);
1801 stats->rxdata_octets = le64_to_cpu(ql_iscsi_stats->rx_data_octets);
1802 /* xmit pdus */
1803 stats->noptx_pdus = le32_to_cpu(ql_iscsi_stats->tx_nopout_pdus);
1804 stats->scsicmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_cmd_pdus);
1805 stats->tmfcmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_tmf_cmd_pdus);
1806 stats->login_pdus = le32_to_cpu(ql_iscsi_stats->tx_login_cmd_pdus);
1807 stats->text_pdus = le32_to_cpu(ql_iscsi_stats->tx_text_cmd_pdus);
1808 stats->dataout_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_write_pdus);
1809 stats->logout_pdus = le32_to_cpu(ql_iscsi_stats->tx_logout_cmd_pdus);
1810 stats->snack_pdus = le32_to_cpu(ql_iscsi_stats->tx_snack_req_pdus);
1811 /* recv pdus */
1812 stats->noprx_pdus = le32_to_cpu(ql_iscsi_stats->rx_nopin_pdus);
1813 stats->scsirsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_resp_pdus);
1814 stats->tmfrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_tmf_resp_pdus);
1815 stats->textrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_text_resp_pdus);
1816 stats->datain_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_read_pdus);
1817 stats->logoutrsp_pdus =
1818 le32_to_cpu(ql_iscsi_stats->rx_logout_resp_pdus);
1819 stats->r2t_pdus = le32_to_cpu(ql_iscsi_stats->rx_r2t_pdus);
1820 stats->async_pdus = le32_to_cpu(ql_iscsi_stats->rx_async_pdus);
1821 stats->rjt_pdus = le32_to_cpu(ql_iscsi_stats->rx_reject_pdus);
1822
1823 free_stats:
1824 dma_free_coherent(&ha->pdev->dev, stats_size, ql_iscsi_stats,
1825 iscsi_stats_dma);
1826 exit_get_stats:
1827 return;
1828 }
1829
1830 static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc)
1831 {
1832 struct iscsi_cls_session *session;
1833 struct iscsi_session *sess;
1834 unsigned long flags;
1835 enum blk_eh_timer_return ret = BLK_EH_NOT_HANDLED;
1836
1837 session = starget_to_session(scsi_target(sc->device));
1838 sess = session->dd_data;
1839
1840 spin_lock_irqsave(&session->lock, flags);
1841 if (session->state == ISCSI_SESSION_FAILED)
1842 ret = BLK_EH_RESET_TIMER;
1843 spin_unlock_irqrestore(&session->lock, flags);
1844
1845 return ret;
1846 }
1847
1848 static void qla4xxx_set_port_speed(struct Scsi_Host *shost)
1849 {
1850 struct scsi_qla_host *ha = to_qla_host(shost);
1851 struct iscsi_cls_host *ihost = shost->shost_data;
1852 uint32_t speed = ISCSI_PORT_SPEED_UNKNOWN;
1853
1854 qla4xxx_get_firmware_state(ha);
1855
1856 switch (ha->addl_fw_state & 0x0F00) {
1857 case FW_ADDSTATE_LINK_SPEED_10MBPS:
1858 speed = ISCSI_PORT_SPEED_10MBPS;
1859 break;
1860 case FW_ADDSTATE_LINK_SPEED_100MBPS:
1861 speed = ISCSI_PORT_SPEED_100MBPS;
1862 break;
1863 case FW_ADDSTATE_LINK_SPEED_1GBPS:
1864 speed = ISCSI_PORT_SPEED_1GBPS;
1865 break;
1866 case FW_ADDSTATE_LINK_SPEED_10GBPS:
1867 speed = ISCSI_PORT_SPEED_10GBPS;
1868 break;
1869 }
1870 ihost->port_speed = speed;
1871 }
1872
1873 static void qla4xxx_set_port_state(struct Scsi_Host *shost)
1874 {
1875 struct scsi_qla_host *ha = to_qla_host(shost);
1876 struct iscsi_cls_host *ihost = shost->shost_data;
1877 uint32_t state = ISCSI_PORT_STATE_DOWN;
1878
1879 if (test_bit(AF_LINK_UP, &ha->flags))
1880 state = ISCSI_PORT_STATE_UP;
1881
1882 ihost->port_state = state;
1883 }
1884
1885 static int qla4xxx_host_get_param(struct Scsi_Host *shost,
1886 enum iscsi_host_param param, char *buf)
1887 {
1888 struct scsi_qla_host *ha = to_qla_host(shost);
1889 int len;
1890
1891 switch (param) {
1892 case ISCSI_HOST_PARAM_HWADDRESS:
1893 len = sysfs_format_mac(buf, ha->my_mac, MAC_ADDR_LEN);
1894 break;
1895 case ISCSI_HOST_PARAM_IPADDRESS:
1896 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address);
1897 break;
1898 case ISCSI_HOST_PARAM_INITIATOR_NAME:
1899 len = sprintf(buf, "%s\n", ha->name_string);
1900 break;
1901 case ISCSI_HOST_PARAM_PORT_STATE:
1902 qla4xxx_set_port_state(shost);
1903 len = sprintf(buf, "%s\n", iscsi_get_port_state_name(shost));
1904 break;
1905 case ISCSI_HOST_PARAM_PORT_SPEED:
1906 qla4xxx_set_port_speed(shost);
1907 len = sprintf(buf, "%s\n", iscsi_get_port_speed_name(shost));
1908 break;
1909 default:
1910 return -ENOSYS;
1911 }
1912
1913 return len;
1914 }
1915
1916 static void qla4xxx_create_ipv4_iface(struct scsi_qla_host *ha)
1917 {
1918 if (ha->iface_ipv4)
1919 return;
1920
1921 /* IPv4 */
1922 ha->iface_ipv4 = iscsi_create_iface(ha->host,
1923 &qla4xxx_iscsi_transport,
1924 ISCSI_IFACE_TYPE_IPV4, 0, 0);
1925 if (!ha->iface_ipv4)
1926 ql4_printk(KERN_ERR, ha, "Could not create IPv4 iSCSI "
1927 "iface0.\n");
1928 }
1929
1930 static void qla4xxx_create_ipv6_iface(struct scsi_qla_host *ha)
1931 {
1932 if (!ha->iface_ipv6_0)
1933 /* IPv6 iface-0 */
1934 ha->iface_ipv6_0 = iscsi_create_iface(ha->host,
1935 &qla4xxx_iscsi_transport,
1936 ISCSI_IFACE_TYPE_IPV6, 0,
1937 0);
1938 if (!ha->iface_ipv6_0)
1939 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI "
1940 "iface0.\n");
1941
1942 if (!ha->iface_ipv6_1)
1943 /* IPv6 iface-1 */
1944 ha->iface_ipv6_1 = iscsi_create_iface(ha->host,
1945 &qla4xxx_iscsi_transport,
1946 ISCSI_IFACE_TYPE_IPV6, 1,
1947 0);
1948 if (!ha->iface_ipv6_1)
1949 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI "
1950 "iface1.\n");
1951 }
1952
1953 static void qla4xxx_create_ifaces(struct scsi_qla_host *ha)
1954 {
1955 if (ha->ip_config.ipv4_options & IPOPT_IPV4_PROTOCOL_ENABLE)
1956 qla4xxx_create_ipv4_iface(ha);
1957
1958 if (ha->ip_config.ipv6_options & IPV6_OPT_IPV6_PROTOCOL_ENABLE)
1959 qla4xxx_create_ipv6_iface(ha);
1960 }
1961
1962 static void qla4xxx_destroy_ipv4_iface(struct scsi_qla_host *ha)
1963 {
1964 if (ha->iface_ipv4) {
1965 iscsi_destroy_iface(ha->iface_ipv4);
1966 ha->iface_ipv4 = NULL;
1967 }
1968 }
1969
1970 static void qla4xxx_destroy_ipv6_iface(struct scsi_qla_host *ha)
1971 {
1972 if (ha->iface_ipv6_0) {
1973 iscsi_destroy_iface(ha->iface_ipv6_0);
1974 ha->iface_ipv6_0 = NULL;
1975 }
1976 if (ha->iface_ipv6_1) {
1977 iscsi_destroy_iface(ha->iface_ipv6_1);
1978 ha->iface_ipv6_1 = NULL;
1979 }
1980 }
1981
1982 static void qla4xxx_destroy_ifaces(struct scsi_qla_host *ha)
1983 {
1984 qla4xxx_destroy_ipv4_iface(ha);
1985 qla4xxx_destroy_ipv6_iface(ha);
1986 }
1987
1988 static void qla4xxx_set_ipv6(struct scsi_qla_host *ha,
1989 struct iscsi_iface_param_info *iface_param,
1990 struct addr_ctrl_blk *init_fw_cb)
1991 {
1992 /*
1993 * iface_num 0 is valid for IPv6 Addr, linklocal, router, autocfg.
1994 * iface_num 1 is valid only for IPv6 Addr.
1995 */
1996 switch (iface_param->param) {
1997 case ISCSI_NET_PARAM_IPV6_ADDR:
1998 if (iface_param->iface_num & 0x1)
1999 /* IPv6 Addr 1 */
2000 memcpy(init_fw_cb->ipv6_addr1, iface_param->value,
2001 sizeof(init_fw_cb->ipv6_addr1));
2002 else
2003 /* IPv6 Addr 0 */
2004 memcpy(init_fw_cb->ipv6_addr0, iface_param->value,
2005 sizeof(init_fw_cb->ipv6_addr0));
2006 break;
2007 case ISCSI_NET_PARAM_IPV6_LINKLOCAL:
2008 if (iface_param->iface_num & 0x1)
2009 break;
2010 memcpy(init_fw_cb->ipv6_if_id, &iface_param->value[8],
2011 sizeof(init_fw_cb->ipv6_if_id));
2012 break;
2013 case ISCSI_NET_PARAM_IPV6_ROUTER:
2014 if (iface_param->iface_num & 0x1)
2015 break;
2016 memcpy(init_fw_cb->ipv6_dflt_rtr_addr, iface_param->value,
2017 sizeof(init_fw_cb->ipv6_dflt_rtr_addr));
2018 break;
2019 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG:
2020 /* Autocfg applies to even interface */
2021 if (iface_param->iface_num & 0x1)
2022 break;
2023
2024 if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_DISABLE)
2025 init_fw_cb->ipv6_addtl_opts &=
2026 cpu_to_le16(
2027 ~IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE);
2028 else if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_ND_ENABLE)
2029 init_fw_cb->ipv6_addtl_opts |=
2030 cpu_to_le16(
2031 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE);
2032 else
2033 ql4_printk(KERN_ERR, ha,
2034 "Invalid autocfg setting for IPv6 addr\n");
2035 break;
2036 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG:
2037 /* Autocfg applies to even interface */
2038 if (iface_param->iface_num & 0x1)
2039 break;
2040
2041 if (iface_param->value[0] ==
2042 ISCSI_IPV6_LINKLOCAL_AUTOCFG_ENABLE)
2043 init_fw_cb->ipv6_addtl_opts |= cpu_to_le16(
2044 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR);
2045 else if (iface_param->value[0] ==
2046 ISCSI_IPV6_LINKLOCAL_AUTOCFG_DISABLE)
2047 init_fw_cb->ipv6_addtl_opts &= cpu_to_le16(
2048 ~IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR);
2049 else
2050 ql4_printk(KERN_ERR, ha,
2051 "Invalid autocfg setting for IPv6 linklocal addr\n");
2052 break;
2053 case ISCSI_NET_PARAM_IPV6_ROUTER_AUTOCFG:
2054 /* Autocfg applies to even interface */
2055 if (iface_param->iface_num & 0x1)
2056 break;
2057
2058 if (iface_param->value[0] == ISCSI_IPV6_ROUTER_AUTOCFG_ENABLE)
2059 memset(init_fw_cb->ipv6_dflt_rtr_addr, 0,
2060 sizeof(init_fw_cb->ipv6_dflt_rtr_addr));
2061 break;
2062 case ISCSI_NET_PARAM_IFACE_ENABLE:
2063 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) {
2064 init_fw_cb->ipv6_opts |=
2065 cpu_to_le16(IPV6_OPT_IPV6_PROTOCOL_ENABLE);
2066 qla4xxx_create_ipv6_iface(ha);
2067 } else {
2068 init_fw_cb->ipv6_opts &=
2069 cpu_to_le16(~IPV6_OPT_IPV6_PROTOCOL_ENABLE &
2070 0xFFFF);
2071 qla4xxx_destroy_ipv6_iface(ha);
2072 }
2073 break;
2074 case ISCSI_NET_PARAM_VLAN_TAG:
2075 if (iface_param->len != sizeof(init_fw_cb->ipv6_vlan_tag))
2076 break;
2077 init_fw_cb->ipv6_vlan_tag =
2078 cpu_to_be16(*(uint16_t *)iface_param->value);
2079 break;
2080 case ISCSI_NET_PARAM_VLAN_ENABLED:
2081 if (iface_param->value[0] == ISCSI_VLAN_ENABLE)
2082 init_fw_cb->ipv6_opts |=
2083 cpu_to_le16(IPV6_OPT_VLAN_TAGGING_ENABLE);
2084 else
2085 init_fw_cb->ipv6_opts &=
2086 cpu_to_le16(~IPV6_OPT_VLAN_TAGGING_ENABLE);
2087 break;
2088 case ISCSI_NET_PARAM_MTU:
2089 init_fw_cb->eth_mtu_size =
2090 cpu_to_le16(*(uint16_t *)iface_param->value);
2091 break;
2092 case ISCSI_NET_PARAM_PORT:
2093 /* Autocfg applies to even interface */
2094 if (iface_param->iface_num & 0x1)
2095 break;
2096
2097 init_fw_cb->ipv6_port =
2098 cpu_to_le16(*(uint16_t *)iface_param->value);
2099 break;
2100 case ISCSI_NET_PARAM_DELAYED_ACK_EN:
2101 if (iface_param->iface_num & 0x1)
2102 break;
2103 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2104 init_fw_cb->ipv6_tcp_opts |=
2105 cpu_to_le16(IPV6_TCPOPT_DELAYED_ACK_DISABLE);
2106 else
2107 init_fw_cb->ipv6_tcp_opts &=
2108 cpu_to_le16(~IPV6_TCPOPT_DELAYED_ACK_DISABLE &
2109 0xFFFF);
2110 break;
2111 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE:
2112 if (iface_param->iface_num & 0x1)
2113 break;
2114 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2115 init_fw_cb->ipv6_tcp_opts |=
2116 cpu_to_le16(IPV6_TCPOPT_NAGLE_ALGO_DISABLE);
2117 else
2118 init_fw_cb->ipv6_tcp_opts &=
2119 cpu_to_le16(~IPV6_TCPOPT_NAGLE_ALGO_DISABLE);
2120 break;
2121 case ISCSI_NET_PARAM_TCP_WSF_DISABLE:
2122 if (iface_param->iface_num & 0x1)
2123 break;
2124 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2125 init_fw_cb->ipv6_tcp_opts |=
2126 cpu_to_le16(IPV6_TCPOPT_WINDOW_SCALE_DISABLE);
2127 else
2128 init_fw_cb->ipv6_tcp_opts &=
2129 cpu_to_le16(~IPV6_TCPOPT_WINDOW_SCALE_DISABLE);
2130 break;
2131 case ISCSI_NET_PARAM_TCP_WSF:
2132 if (iface_param->iface_num & 0x1)
2133 break;
2134 init_fw_cb->ipv6_tcp_wsf = iface_param->value[0];
2135 break;
2136 case ISCSI_NET_PARAM_TCP_TIMER_SCALE:
2137 if (iface_param->iface_num & 0x1)
2138 break;
2139 init_fw_cb->ipv6_tcp_opts &=
2140 cpu_to_le16(~IPV6_TCPOPT_TIMER_SCALE);
2141 init_fw_cb->ipv6_tcp_opts |=
2142 cpu_to_le16((iface_param->value[0] << 1) &
2143 IPV6_TCPOPT_TIMER_SCALE);
2144 break;
2145 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN:
2146 if (iface_param->iface_num & 0x1)
2147 break;
2148 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2149 init_fw_cb->ipv6_tcp_opts |=
2150 cpu_to_le16(IPV6_TCPOPT_TIMESTAMP_EN);
2151 else
2152 init_fw_cb->ipv6_tcp_opts &=
2153 cpu_to_le16(~IPV6_TCPOPT_TIMESTAMP_EN);
2154 break;
2155 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN:
2156 if (iface_param->iface_num & 0x1)
2157 break;
2158 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2159 init_fw_cb->ipv6_opts |=
2160 cpu_to_le16(IPV6_OPT_GRAT_NEIGHBOR_ADV_EN);
2161 else
2162 init_fw_cb->ipv6_opts &=
2163 cpu_to_le16(~IPV6_OPT_GRAT_NEIGHBOR_ADV_EN);
2164 break;
2165 case ISCSI_NET_PARAM_REDIRECT_EN:
2166 if (iface_param->iface_num & 0x1)
2167 break;
2168 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2169 init_fw_cb->ipv6_opts |=
2170 cpu_to_le16(IPV6_OPT_REDIRECT_EN);
2171 else
2172 init_fw_cb->ipv6_opts &=
2173 cpu_to_le16(~IPV6_OPT_REDIRECT_EN);
2174 break;
2175 case ISCSI_NET_PARAM_IPV6_MLD_EN:
2176 if (iface_param->iface_num & 0x1)
2177 break;
2178 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2179 init_fw_cb->ipv6_addtl_opts |=
2180 cpu_to_le16(IPV6_ADDOPT_MLD_EN);
2181 else
2182 init_fw_cb->ipv6_addtl_opts &=
2183 cpu_to_le16(~IPV6_ADDOPT_MLD_EN);
2184 break;
2185 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL:
2186 if (iface_param->iface_num & 0x1)
2187 break;
2188 init_fw_cb->ipv6_flow_lbl =
2189 cpu_to_le16(*(uint16_t *)iface_param->value);
2190 break;
2191 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS:
2192 if (iface_param->iface_num & 0x1)
2193 break;
2194 init_fw_cb->ipv6_traffic_class = iface_param->value[0];
2195 break;
2196 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT:
2197 if (iface_param->iface_num & 0x1)
2198 break;
2199 init_fw_cb->ipv6_hop_limit = iface_param->value[0];
2200 break;
2201 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO:
2202 if (iface_param->iface_num & 0x1)
2203 break;
2204 init_fw_cb->ipv6_nd_reach_time =
2205 cpu_to_le32(*(uint32_t *)iface_param->value);
2206 break;
2207 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME:
2208 if (iface_param->iface_num & 0x1)
2209 break;
2210 init_fw_cb->ipv6_nd_rexmit_timer =
2211 cpu_to_le32(*(uint32_t *)iface_param->value);
2212 break;
2213 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO:
2214 if (iface_param->iface_num & 0x1)
2215 break;
2216 init_fw_cb->ipv6_nd_stale_timeout =
2217 cpu_to_le32(*(uint32_t *)iface_param->value);
2218 break;
2219 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT:
2220 if (iface_param->iface_num & 0x1)
2221 break;
2222 init_fw_cb->ipv6_dup_addr_detect_count = iface_param->value[0];
2223 break;
2224 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU:
2225 if (iface_param->iface_num & 0x1)
2226 break;
2227 init_fw_cb->ipv6_gw_advrt_mtu =
2228 cpu_to_le32(*(uint32_t *)iface_param->value);
2229 break;
2230 default:
2231 ql4_printk(KERN_ERR, ha, "Unknown IPv6 param = %d\n",
2232 iface_param->param);
2233 break;
2234 }
2235 }
2236
2237 static void qla4xxx_set_ipv4(struct scsi_qla_host *ha,
2238 struct iscsi_iface_param_info *iface_param,
2239 struct addr_ctrl_blk *init_fw_cb)
2240 {
2241 switch (iface_param->param) {
2242 case ISCSI_NET_PARAM_IPV4_ADDR:
2243 memcpy(init_fw_cb->ipv4_addr, iface_param->value,
2244 sizeof(init_fw_cb->ipv4_addr));
2245 break;
2246 case ISCSI_NET_PARAM_IPV4_SUBNET:
2247 memcpy(init_fw_cb->ipv4_subnet, iface_param->value,
2248 sizeof(init_fw_cb->ipv4_subnet));
2249 break;
2250 case ISCSI_NET_PARAM_IPV4_GW:
2251 memcpy(init_fw_cb->ipv4_gw_addr, iface_param->value,
2252 sizeof(init_fw_cb->ipv4_gw_addr));
2253 break;
2254 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
2255 if (iface_param->value[0] == ISCSI_BOOTPROTO_DHCP)
2256 init_fw_cb->ipv4_tcp_opts |=
2257 cpu_to_le16(TCPOPT_DHCP_ENABLE);
2258 else if (iface_param->value[0] == ISCSI_BOOTPROTO_STATIC)
2259 init_fw_cb->ipv4_tcp_opts &=
2260 cpu_to_le16(~TCPOPT_DHCP_ENABLE);
2261 else
2262 ql4_printk(KERN_ERR, ha, "Invalid IPv4 bootproto\n");
2263 break;
2264 case ISCSI_NET_PARAM_IFACE_ENABLE:
2265 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) {
2266 init_fw_cb->ipv4_ip_opts |=
2267 cpu_to_le16(IPOPT_IPV4_PROTOCOL_ENABLE);
2268 qla4xxx_create_ipv4_iface(ha);
2269 } else {
2270 init_fw_cb->ipv4_ip_opts &=
2271 cpu_to_le16(~IPOPT_IPV4_PROTOCOL_ENABLE &
2272 0xFFFF);
2273 qla4xxx_destroy_ipv4_iface(ha);
2274 }
2275 break;
2276 case ISCSI_NET_PARAM_VLAN_TAG:
2277 if (iface_param->len != sizeof(init_fw_cb->ipv4_vlan_tag))
2278 break;
2279 init_fw_cb->ipv4_vlan_tag =
2280 cpu_to_be16(*(uint16_t *)iface_param->value);
2281 break;
2282 case ISCSI_NET_PARAM_VLAN_ENABLED:
2283 if (iface_param->value[0] == ISCSI_VLAN_ENABLE)
2284 init_fw_cb->ipv4_ip_opts |=
2285 cpu_to_le16(IPOPT_VLAN_TAGGING_ENABLE);
2286 else
2287 init_fw_cb->ipv4_ip_opts &=
2288 cpu_to_le16(~IPOPT_VLAN_TAGGING_ENABLE);
2289 break;
2290 case ISCSI_NET_PARAM_MTU:
2291 init_fw_cb->eth_mtu_size =
2292 cpu_to_le16(*(uint16_t *)iface_param->value);
2293 break;
2294 case ISCSI_NET_PARAM_PORT:
2295 init_fw_cb->ipv4_port =
2296 cpu_to_le16(*(uint16_t *)iface_param->value);
2297 break;
2298 case ISCSI_NET_PARAM_DELAYED_ACK_EN:
2299 if (iface_param->iface_num & 0x1)
2300 break;
2301 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2302 init_fw_cb->ipv4_tcp_opts |=
2303 cpu_to_le16(TCPOPT_DELAYED_ACK_DISABLE);
2304 else
2305 init_fw_cb->ipv4_tcp_opts &=
2306 cpu_to_le16(~TCPOPT_DELAYED_ACK_DISABLE &
2307 0xFFFF);
2308 break;
2309 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE:
2310 if (iface_param->iface_num & 0x1)
2311 break;
2312 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2313 init_fw_cb->ipv4_tcp_opts |=
2314 cpu_to_le16(TCPOPT_NAGLE_ALGO_DISABLE);
2315 else
2316 init_fw_cb->ipv4_tcp_opts &=
2317 cpu_to_le16(~TCPOPT_NAGLE_ALGO_DISABLE);
2318 break;
2319 case ISCSI_NET_PARAM_TCP_WSF_DISABLE:
2320 if (iface_param->iface_num & 0x1)
2321 break;
2322 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2323 init_fw_cb->ipv4_tcp_opts |=
2324 cpu_to_le16(TCPOPT_WINDOW_SCALE_DISABLE);
2325 else
2326 init_fw_cb->ipv4_tcp_opts &=
2327 cpu_to_le16(~TCPOPT_WINDOW_SCALE_DISABLE);
2328 break;
2329 case ISCSI_NET_PARAM_TCP_WSF:
2330 if (iface_param->iface_num & 0x1)
2331 break;
2332 init_fw_cb->ipv4_tcp_wsf = iface_param->value[0];
2333 break;
2334 case ISCSI_NET_PARAM_TCP_TIMER_SCALE:
2335 if (iface_param->iface_num & 0x1)
2336 break;
2337 init_fw_cb->ipv4_tcp_opts &= cpu_to_le16(~TCPOPT_TIMER_SCALE);
2338 init_fw_cb->ipv4_tcp_opts |=
2339 cpu_to_le16((iface_param->value[0] << 1) &
2340 TCPOPT_TIMER_SCALE);
2341 break;
2342 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN:
2343 if (iface_param->iface_num & 0x1)
2344 break;
2345 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2346 init_fw_cb->ipv4_tcp_opts |=
2347 cpu_to_le16(TCPOPT_TIMESTAMP_ENABLE);
2348 else
2349 init_fw_cb->ipv4_tcp_opts &=
2350 cpu_to_le16(~TCPOPT_TIMESTAMP_ENABLE);
2351 break;
2352 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN:
2353 if (iface_param->iface_num & 0x1)
2354 break;
2355 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2356 init_fw_cb->ipv4_tcp_opts |=
2357 cpu_to_le16(TCPOPT_DNS_SERVER_IP_EN);
2358 else
2359 init_fw_cb->ipv4_tcp_opts &=
2360 cpu_to_le16(~TCPOPT_DNS_SERVER_IP_EN);
2361 break;
2362 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN:
2363 if (iface_param->iface_num & 0x1)
2364 break;
2365 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2366 init_fw_cb->ipv4_tcp_opts |=
2367 cpu_to_le16(TCPOPT_SLP_DA_INFO_EN);
2368 else
2369 init_fw_cb->ipv4_tcp_opts &=
2370 cpu_to_le16(~TCPOPT_SLP_DA_INFO_EN);
2371 break;
2372 case ISCSI_NET_PARAM_IPV4_TOS_EN:
2373 if (iface_param->iface_num & 0x1)
2374 break;
2375 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2376 init_fw_cb->ipv4_ip_opts |=
2377 cpu_to_le16(IPOPT_IPV4_TOS_EN);
2378 else
2379 init_fw_cb->ipv4_ip_opts &=
2380 cpu_to_le16(~IPOPT_IPV4_TOS_EN);
2381 break;
2382 case ISCSI_NET_PARAM_IPV4_TOS:
2383 if (iface_param->iface_num & 0x1)
2384 break;
2385 init_fw_cb->ipv4_tos = iface_param->value[0];
2386 break;
2387 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN:
2388 if (iface_param->iface_num & 0x1)
2389 break;
2390 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2391 init_fw_cb->ipv4_ip_opts |=
2392 cpu_to_le16(IPOPT_GRAT_ARP_EN);
2393 else
2394 init_fw_cb->ipv4_ip_opts &=
2395 cpu_to_le16(~IPOPT_GRAT_ARP_EN);
2396 break;
2397 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN:
2398 if (iface_param->iface_num & 0x1)
2399 break;
2400 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2401 init_fw_cb->ipv4_ip_opts |=
2402 cpu_to_le16(IPOPT_ALT_CID_EN);
2403 else
2404 init_fw_cb->ipv4_ip_opts &=
2405 cpu_to_le16(~IPOPT_ALT_CID_EN);
2406 break;
2407 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID:
2408 if (iface_param->iface_num & 0x1)
2409 break;
2410 memcpy(init_fw_cb->ipv4_dhcp_alt_cid, iface_param->value,
2411 (sizeof(init_fw_cb->ipv4_dhcp_alt_cid) - 1));
2412 init_fw_cb->ipv4_dhcp_alt_cid_len =
2413 strlen(init_fw_cb->ipv4_dhcp_alt_cid);
2414 break;
2415 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN:
2416 if (iface_param->iface_num & 0x1)
2417 break;
2418 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2419 init_fw_cb->ipv4_ip_opts |=
2420 cpu_to_le16(IPOPT_REQ_VID_EN);
2421 else
2422 init_fw_cb->ipv4_ip_opts &=
2423 cpu_to_le16(~IPOPT_REQ_VID_EN);
2424 break;
2425 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN:
2426 if (iface_param->iface_num & 0x1)
2427 break;
2428 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2429 init_fw_cb->ipv4_ip_opts |=
2430 cpu_to_le16(IPOPT_USE_VID_EN);
2431 else
2432 init_fw_cb->ipv4_ip_opts &=
2433 cpu_to_le16(~IPOPT_USE_VID_EN);
2434 break;
2435 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID:
2436 if (iface_param->iface_num & 0x1)
2437 break;
2438 memcpy(init_fw_cb->ipv4_dhcp_vid, iface_param->value,
2439 (sizeof(init_fw_cb->ipv4_dhcp_vid) - 1));
2440 init_fw_cb->ipv4_dhcp_vid_len =
2441 strlen(init_fw_cb->ipv4_dhcp_vid);
2442 break;
2443 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN:
2444 if (iface_param->iface_num & 0x1)
2445 break;
2446 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2447 init_fw_cb->ipv4_ip_opts |=
2448 cpu_to_le16(IPOPT_LEARN_IQN_EN);
2449 else
2450 init_fw_cb->ipv4_ip_opts &=
2451 cpu_to_le16(~IPOPT_LEARN_IQN_EN);
2452 break;
2453 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE:
2454 if (iface_param->iface_num & 0x1)
2455 break;
2456 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2457 init_fw_cb->ipv4_ip_opts |=
2458 cpu_to_le16(IPOPT_FRAGMENTATION_DISABLE);
2459 else
2460 init_fw_cb->ipv4_ip_opts &=
2461 cpu_to_le16(~IPOPT_FRAGMENTATION_DISABLE);
2462 break;
2463 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN:
2464 if (iface_param->iface_num & 0x1)
2465 break;
2466 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2467 init_fw_cb->ipv4_ip_opts |=
2468 cpu_to_le16(IPOPT_IN_FORWARD_EN);
2469 else
2470 init_fw_cb->ipv4_ip_opts &=
2471 cpu_to_le16(~IPOPT_IN_FORWARD_EN);
2472 break;
2473 case ISCSI_NET_PARAM_REDIRECT_EN:
2474 if (iface_param->iface_num & 0x1)
2475 break;
2476 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2477 init_fw_cb->ipv4_ip_opts |=
2478 cpu_to_le16(IPOPT_ARP_REDIRECT_EN);
2479 else
2480 init_fw_cb->ipv4_ip_opts &=
2481 cpu_to_le16(~IPOPT_ARP_REDIRECT_EN);
2482 break;
2483 case ISCSI_NET_PARAM_IPV4_TTL:
2484 if (iface_param->iface_num & 0x1)
2485 break;
2486 init_fw_cb->ipv4_ttl = iface_param->value[0];
2487 break;
2488 default:
2489 ql4_printk(KERN_ERR, ha, "Unknown IPv4 param = %d\n",
2490 iface_param->param);
2491 break;
2492 }
2493 }
2494
2495 static void qla4xxx_set_iscsi_param(struct scsi_qla_host *ha,
2496 struct iscsi_iface_param_info *iface_param,
2497 struct addr_ctrl_blk *init_fw_cb)
2498 {
2499 switch (iface_param->param) {
2500 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO:
2501 if (iface_param->iface_num & 0x1)
2502 break;
2503 init_fw_cb->def_timeout =
2504 cpu_to_le16(*(uint16_t *)iface_param->value);
2505 break;
2506 case ISCSI_IFACE_PARAM_HDRDGST_EN:
2507 if (iface_param->iface_num & 0x1)
2508 break;
2509 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2510 init_fw_cb->iscsi_opts |=
2511 cpu_to_le16(ISCSIOPTS_HEADER_DIGEST_EN);
2512 else
2513 init_fw_cb->iscsi_opts &=
2514 cpu_to_le16(~ISCSIOPTS_HEADER_DIGEST_EN);
2515 break;
2516 case ISCSI_IFACE_PARAM_DATADGST_EN:
2517 if (iface_param->iface_num & 0x1)
2518 break;
2519 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2520 init_fw_cb->iscsi_opts |=
2521 cpu_to_le16(ISCSIOPTS_DATA_DIGEST_EN);
2522 else
2523 init_fw_cb->iscsi_opts &=
2524 cpu_to_le16(~ISCSIOPTS_DATA_DIGEST_EN);
2525 break;
2526 case ISCSI_IFACE_PARAM_IMM_DATA_EN:
2527 if (iface_param->iface_num & 0x1)
2528 break;
2529 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2530 init_fw_cb->iscsi_opts |=
2531 cpu_to_le16(ISCSIOPTS_IMMEDIATE_DATA_EN);
2532 else
2533 init_fw_cb->iscsi_opts &=
2534 cpu_to_le16(~ISCSIOPTS_IMMEDIATE_DATA_EN);
2535 break;
2536 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN:
2537 if (iface_param->iface_num & 0x1)
2538 break;
2539 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2540 init_fw_cb->iscsi_opts |=
2541 cpu_to_le16(ISCSIOPTS_INITIAL_R2T_EN);
2542 else
2543 init_fw_cb->iscsi_opts &=
2544 cpu_to_le16(~ISCSIOPTS_INITIAL_R2T_EN);
2545 break;
2546 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN:
2547 if (iface_param->iface_num & 0x1)
2548 break;
2549 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2550 init_fw_cb->iscsi_opts |=
2551 cpu_to_le16(ISCSIOPTS_DATA_SEQ_INORDER_EN);
2552 else
2553 init_fw_cb->iscsi_opts &=
2554 cpu_to_le16(~ISCSIOPTS_DATA_SEQ_INORDER_EN);
2555 break;
2556 case ISCSI_IFACE_PARAM_PDU_INORDER_EN:
2557 if (iface_param->iface_num & 0x1)
2558 break;
2559 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2560 init_fw_cb->iscsi_opts |=
2561 cpu_to_le16(ISCSIOPTS_DATA_PDU_INORDER_EN);
2562 else
2563 init_fw_cb->iscsi_opts &=
2564 cpu_to_le16(~ISCSIOPTS_DATA_PDU_INORDER_EN);
2565 break;
2566 case ISCSI_IFACE_PARAM_ERL:
2567 if (iface_param->iface_num & 0x1)
2568 break;
2569 init_fw_cb->iscsi_opts &= cpu_to_le16(~ISCSIOPTS_ERL);
2570 init_fw_cb->iscsi_opts |= cpu_to_le16(iface_param->value[0] &
2571 ISCSIOPTS_ERL);
2572 break;
2573 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH:
2574 if (iface_param->iface_num & 0x1)
2575 break;
2576 init_fw_cb->iscsi_max_pdu_size =
2577 cpu_to_le32(*(uint32_t *)iface_param->value) /
2578 BYTE_UNITS;
2579 break;
2580 case ISCSI_IFACE_PARAM_FIRST_BURST:
2581 if (iface_param->iface_num & 0x1)
2582 break;
2583 init_fw_cb->iscsi_fburst_len =
2584 cpu_to_le32(*(uint32_t *)iface_param->value) /
2585 BYTE_UNITS;
2586 break;
2587 case ISCSI_IFACE_PARAM_MAX_R2T:
2588 if (iface_param->iface_num & 0x1)
2589 break;
2590 init_fw_cb->iscsi_max_outstnd_r2t =
2591 cpu_to_le16(*(uint16_t *)iface_param->value);
2592 break;
2593 case ISCSI_IFACE_PARAM_MAX_BURST:
2594 if (iface_param->iface_num & 0x1)
2595 break;
2596 init_fw_cb->iscsi_max_burst_len =
2597 cpu_to_le32(*(uint32_t *)iface_param->value) /
2598 BYTE_UNITS;
2599 break;
2600 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN:
2601 if (iface_param->iface_num & 0x1)
2602 break;
2603 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2604 init_fw_cb->iscsi_opts |=
2605 cpu_to_le16(ISCSIOPTS_CHAP_AUTH_EN);
2606 else
2607 init_fw_cb->iscsi_opts &=
2608 cpu_to_le16(~ISCSIOPTS_CHAP_AUTH_EN);
2609 break;
2610 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN:
2611 if (iface_param->iface_num & 0x1)
2612 break;
2613 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2614 init_fw_cb->iscsi_opts |=
2615 cpu_to_le16(ISCSIOPTS_BIDI_CHAP_EN);
2616 else
2617 init_fw_cb->iscsi_opts &=
2618 cpu_to_le16(~ISCSIOPTS_BIDI_CHAP_EN);
2619 break;
2620 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL:
2621 if (iface_param->iface_num & 0x1)
2622 break;
2623 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2624 init_fw_cb->iscsi_opts |=
2625 cpu_to_le16(ISCSIOPTS_DISCOVERY_AUTH_EN);
2626 else
2627 init_fw_cb->iscsi_opts &=
2628 cpu_to_le16(~ISCSIOPTS_DISCOVERY_AUTH_EN);
2629 break;
2630 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN:
2631 if (iface_param->iface_num & 0x1)
2632 break;
2633 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2634 init_fw_cb->iscsi_opts |=
2635 cpu_to_le16(ISCSIOPTS_DISCOVERY_LOGOUT_EN);
2636 else
2637 init_fw_cb->iscsi_opts &=
2638 cpu_to_le16(~ISCSIOPTS_DISCOVERY_LOGOUT_EN);
2639 break;
2640 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN:
2641 if (iface_param->iface_num & 0x1)
2642 break;
2643 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2644 init_fw_cb->iscsi_opts |=
2645 cpu_to_le16(ISCSIOPTS_STRICT_LOGIN_COMP_EN);
2646 else
2647 init_fw_cb->iscsi_opts &=
2648 cpu_to_le16(~ISCSIOPTS_STRICT_LOGIN_COMP_EN);
2649 break;
2650 default:
2651 ql4_printk(KERN_ERR, ha, "Unknown iscsi param = %d\n",
2652 iface_param->param);
2653 break;
2654 }
2655 }
2656
2657 static void
2658 qla4xxx_initcb_to_acb(struct addr_ctrl_blk *init_fw_cb)
2659 {
2660 struct addr_ctrl_blk_def *acb;
2661 acb = (struct addr_ctrl_blk_def *)init_fw_cb;
2662 memset(acb->reserved1, 0, sizeof(acb->reserved1));
2663 memset(acb->reserved2, 0, sizeof(acb->reserved2));
2664 memset(acb->reserved3, 0, sizeof(acb->reserved3));
2665 memset(acb->reserved4, 0, sizeof(acb->reserved4));
2666 memset(acb->reserved5, 0, sizeof(acb->reserved5));
2667 memset(acb->reserved6, 0, sizeof(acb->reserved6));
2668 memset(acb->reserved7, 0, sizeof(acb->reserved7));
2669 memset(acb->reserved8, 0, sizeof(acb->reserved8));
2670 memset(acb->reserved9, 0, sizeof(acb->reserved9));
2671 memset(acb->reserved10, 0, sizeof(acb->reserved10));
2672 memset(acb->reserved11, 0, sizeof(acb->reserved11));
2673 memset(acb->reserved12, 0, sizeof(acb->reserved12));
2674 memset(acb->reserved13, 0, sizeof(acb->reserved13));
2675 memset(acb->reserved14, 0, sizeof(acb->reserved14));
2676 memset(acb->reserved15, 0, sizeof(acb->reserved15));
2677 }
2678
2679 static int
2680 qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data, uint32_t len)
2681 {
2682 struct scsi_qla_host *ha = to_qla_host(shost);
2683 int rval = 0;
2684 struct iscsi_iface_param_info *iface_param = NULL;
2685 struct addr_ctrl_blk *init_fw_cb = NULL;
2686 dma_addr_t init_fw_cb_dma;
2687 uint32_t mbox_cmd[MBOX_REG_COUNT];
2688 uint32_t mbox_sts[MBOX_REG_COUNT];
2689 uint32_t rem = len;
2690 struct nlattr *attr;
2691
2692 init_fw_cb = dma_alloc_coherent(&ha->pdev->dev,
2693 sizeof(struct addr_ctrl_blk),
2694 &init_fw_cb_dma, GFP_KERNEL);
2695 if (!init_fw_cb) {
2696 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc init_cb\n",
2697 __func__);
2698 return -ENOMEM;
2699 }
2700
2701 memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk));
2702 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
2703 memset(&mbox_sts, 0, sizeof(mbox_sts));
2704
2705 if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma)) {
2706 ql4_printk(KERN_ERR, ha, "%s: get ifcb failed\n", __func__);
2707 rval = -EIO;
2708 goto exit_init_fw_cb;
2709 }
2710
2711 nla_for_each_attr(attr, data, len, rem) {
2712 iface_param = nla_data(attr);
2713
2714 if (iface_param->param_type == ISCSI_NET_PARAM) {
2715 switch (iface_param->iface_type) {
2716 case ISCSI_IFACE_TYPE_IPV4:
2717 switch (iface_param->iface_num) {
2718 case 0:
2719 qla4xxx_set_ipv4(ha, iface_param,
2720 init_fw_cb);
2721 break;
2722 default:
2723 /* Cannot have more than one IPv4 interface */
2724 ql4_printk(KERN_ERR, ha,
2725 "Invalid IPv4 iface number = %d\n",
2726 iface_param->iface_num);
2727 break;
2728 }
2729 break;
2730 case ISCSI_IFACE_TYPE_IPV6:
2731 switch (iface_param->iface_num) {
2732 case 0:
2733 case 1:
2734 qla4xxx_set_ipv6(ha, iface_param,
2735 init_fw_cb);
2736 break;
2737 default:
2738 /* Cannot have more than two IPv6 interface */
2739 ql4_printk(KERN_ERR, ha,
2740 "Invalid IPv6 iface number = %d\n",
2741 iface_param->iface_num);
2742 break;
2743 }
2744 break;
2745 default:
2746 ql4_printk(KERN_ERR, ha,
2747 "Invalid iface type\n");
2748 break;
2749 }
2750 } else if (iface_param->param_type == ISCSI_IFACE_PARAM) {
2751 qla4xxx_set_iscsi_param(ha, iface_param,
2752 init_fw_cb);
2753 } else {
2754 continue;
2755 }
2756 }
2757
2758 init_fw_cb->cookie = cpu_to_le32(0x11BEAD5A);
2759
2760 rval = qla4xxx_set_flash(ha, init_fw_cb_dma, FLASH_SEGMENT_IFCB,
2761 sizeof(struct addr_ctrl_blk),
2762 FLASH_OPT_RMW_COMMIT);
2763 if (rval != QLA_SUCCESS) {
2764 ql4_printk(KERN_ERR, ha, "%s: set flash mbx failed\n",
2765 __func__);
2766 rval = -EIO;
2767 goto exit_init_fw_cb;
2768 }
2769
2770 rval = qla4xxx_disable_acb(ha);
2771 if (rval != QLA_SUCCESS) {
2772 ql4_printk(KERN_ERR, ha, "%s: disable acb mbx failed\n",
2773 __func__);
2774 rval = -EIO;
2775 goto exit_init_fw_cb;
2776 }
2777
2778 wait_for_completion_timeout(&ha->disable_acb_comp,
2779 DISABLE_ACB_TOV * HZ);
2780
2781 qla4xxx_initcb_to_acb(init_fw_cb);
2782
2783 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma);
2784 if (rval != QLA_SUCCESS) {
2785 ql4_printk(KERN_ERR, ha, "%s: set acb mbx failed\n",
2786 __func__);
2787 rval = -EIO;
2788 goto exit_init_fw_cb;
2789 }
2790
2791 memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk));
2792 qla4xxx_update_local_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb,
2793 init_fw_cb_dma);
2794
2795 exit_init_fw_cb:
2796 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk),
2797 init_fw_cb, init_fw_cb_dma);
2798
2799 return rval;
2800 }
2801
2802 static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess,
2803 enum iscsi_param param, char *buf)
2804 {
2805 struct iscsi_session *sess = cls_sess->dd_data;
2806 struct ddb_entry *ddb_entry = sess->dd_data;
2807 struct scsi_qla_host *ha = ddb_entry->ha;
2808 struct iscsi_cls_conn *cls_conn = ddb_entry->conn;
2809 struct ql4_chap_table chap_tbl;
2810 int rval, len;
2811 uint16_t idx;
2812
2813 memset(&chap_tbl, 0, sizeof(chap_tbl));
2814 switch (param) {
2815 case ISCSI_PARAM_CHAP_IN_IDX:
2816 rval = qla4xxx_get_chap_index(ha, sess->username_in,
2817 sess->password_in, BIDI_CHAP,
2818 &idx);
2819 if (rval)
2820 len = sprintf(buf, "\n");
2821 else
2822 len = sprintf(buf, "%hu\n", idx);
2823 break;
2824 case ISCSI_PARAM_CHAP_OUT_IDX:
2825 if (ddb_entry->ddb_type == FLASH_DDB) {
2826 if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) {
2827 idx = ddb_entry->chap_tbl_idx;
2828 rval = QLA_SUCCESS;
2829 } else {
2830 rval = QLA_ERROR;
2831 }
2832 } else {
2833 rval = qla4xxx_get_chap_index(ha, sess->username,
2834 sess->password,
2835 LOCAL_CHAP, &idx);
2836 }
2837 if (rval)
2838 len = sprintf(buf, "\n");
2839 else
2840 len = sprintf(buf, "%hu\n", idx);
2841 break;
2842 case ISCSI_PARAM_USERNAME:
2843 case ISCSI_PARAM_PASSWORD:
2844 /* First, populate session username and password for FLASH DDB,
2845 * if not already done. This happens when session login fails
2846 * for a FLASH DDB.
2847 */
2848 if (ddb_entry->ddb_type == FLASH_DDB &&
2849 ddb_entry->chap_tbl_idx != INVALID_ENTRY &&
2850 !sess->username && !sess->password) {
2851 idx = ddb_entry->chap_tbl_idx;
2852 rval = qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name,
2853 chap_tbl.secret,
2854 idx);
2855 if (!rval) {
2856 iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME,
2857 (char *)chap_tbl.name,
2858 strlen((char *)chap_tbl.name));
2859 iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD,
2860 (char *)chap_tbl.secret,
2861 chap_tbl.secret_len);
2862 }
2863 }
2864 /* allow fall-through */
2865 default:
2866 return iscsi_session_get_param(cls_sess, param, buf);
2867 }
2868
2869 return len;
2870 }
2871
2872 static int qla4xxx_conn_get_param(struct iscsi_cls_conn *cls_conn,
2873 enum iscsi_param param, char *buf)
2874 {
2875 struct iscsi_conn *conn;
2876 struct qla_conn *qla_conn;
2877 struct sockaddr *dst_addr;
2878
2879 conn = cls_conn->dd_data;
2880 qla_conn = conn->dd_data;
2881 dst_addr = (struct sockaddr *)&qla_conn->qla_ep->dst_addr;
2882
2883 switch (param) {
2884 case ISCSI_PARAM_CONN_PORT:
2885 case ISCSI_PARAM_CONN_ADDRESS:
2886 return iscsi_conn_get_addr_param((struct sockaddr_storage *)
2887 dst_addr, param, buf);
2888 default:
2889 return iscsi_conn_get_param(cls_conn, param, buf);
2890 }
2891 }
2892
2893 int qla4xxx_get_ddb_index(struct scsi_qla_host *ha, uint16_t *ddb_index)
2894 {
2895 uint32_t mbx_sts = 0;
2896 uint16_t tmp_ddb_index;
2897 int ret;
2898
2899 get_ddb_index:
2900 tmp_ddb_index = find_first_zero_bit(ha->ddb_idx_map, MAX_DDB_ENTRIES);
2901
2902 if (tmp_ddb_index >= MAX_DDB_ENTRIES) {
2903 DEBUG2(ql4_printk(KERN_INFO, ha,
2904 "Free DDB index not available\n"));
2905 ret = QLA_ERROR;
2906 goto exit_get_ddb_index;
2907 }
2908
2909 if (test_and_set_bit(tmp_ddb_index, ha->ddb_idx_map))
2910 goto get_ddb_index;
2911
2912 DEBUG2(ql4_printk(KERN_INFO, ha,
2913 "Found a free DDB index at %d\n", tmp_ddb_index));
2914 ret = qla4xxx_req_ddb_entry(ha, tmp_ddb_index, &mbx_sts);
2915 if (ret == QLA_ERROR) {
2916 if (mbx_sts == MBOX_STS_COMMAND_ERROR) {
2917 ql4_printk(KERN_INFO, ha,
2918 "DDB index = %d not available trying next\n",
2919 tmp_ddb_index);
2920 goto get_ddb_index;
2921 }
2922 DEBUG2(ql4_printk(KERN_INFO, ha,
2923 "Free FW DDB not available\n"));
2924 }
2925
2926 *ddb_index = tmp_ddb_index;
2927
2928 exit_get_ddb_index:
2929 return ret;
2930 }
2931
2932 static int qla4xxx_match_ipaddress(struct scsi_qla_host *ha,
2933 struct ddb_entry *ddb_entry,
2934 char *existing_ipaddr,
2935 char *user_ipaddr)
2936 {
2937 uint8_t dst_ipaddr[IPv6_ADDR_LEN];
2938 char formatted_ipaddr[DDB_IPADDR_LEN];
2939 int status = QLA_SUCCESS, ret = 0;
2940
2941 if (ddb_entry->fw_ddb_entry.options & DDB_OPT_IPV6_DEVICE) {
2942 ret = in6_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr,
2943 '\0', NULL);
2944 if (ret == 0) {
2945 status = QLA_ERROR;
2946 goto out_match;
2947 }
2948 ret = sprintf(formatted_ipaddr, "%pI6", dst_ipaddr);
2949 } else {
2950 ret = in4_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr,
2951 '\0', NULL);
2952 if (ret == 0) {
2953 status = QLA_ERROR;
2954 goto out_match;
2955 }
2956 ret = sprintf(formatted_ipaddr, "%pI4", dst_ipaddr);
2957 }
2958
2959 if (strcmp(existing_ipaddr, formatted_ipaddr))
2960 status = QLA_ERROR;
2961
2962 out_match:
2963 return status;
2964 }
2965
2966 static int qla4xxx_match_fwdb_session(struct scsi_qla_host *ha,
2967 struct iscsi_cls_conn *cls_conn)
2968 {
2969 int idx = 0, max_ddbs, rval;
2970 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
2971 struct iscsi_session *sess, *existing_sess;
2972 struct iscsi_conn *conn, *existing_conn;
2973 struct ddb_entry *ddb_entry;
2974
2975 sess = cls_sess->dd_data;
2976 conn = cls_conn->dd_data;
2977
2978 if (sess->targetname == NULL ||
2979 conn->persistent_address == NULL ||
2980 conn->persistent_port == 0)
2981 return QLA_ERROR;
2982
2983 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
2984 MAX_DEV_DB_ENTRIES;
2985
2986 for (idx = 0; idx < max_ddbs; idx++) {
2987 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
2988 if (ddb_entry == NULL)
2989 continue;
2990
2991 if (ddb_entry->ddb_type != FLASH_DDB)
2992 continue;
2993
2994 existing_sess = ddb_entry->sess->dd_data;
2995 existing_conn = ddb_entry->conn->dd_data;
2996
2997 if (existing_sess->targetname == NULL ||
2998 existing_conn->persistent_address == NULL ||
2999 existing_conn->persistent_port == 0)
3000 continue;
3001
3002 DEBUG2(ql4_printk(KERN_INFO, ha,
3003 "IQN = %s User IQN = %s\n",
3004 existing_sess->targetname,
3005 sess->targetname));
3006
3007 DEBUG2(ql4_printk(KERN_INFO, ha,
3008 "IP = %s User IP = %s\n",
3009 existing_conn->persistent_address,
3010 conn->persistent_address));
3011
3012 DEBUG2(ql4_printk(KERN_INFO, ha,
3013 "Port = %d User Port = %d\n",
3014 existing_conn->persistent_port,
3015 conn->persistent_port));
3016
3017 if (strcmp(existing_sess->targetname, sess->targetname))
3018 continue;
3019 rval = qla4xxx_match_ipaddress(ha, ddb_entry,
3020 existing_conn->persistent_address,
3021 conn->persistent_address);
3022 if (rval == QLA_ERROR)
3023 continue;
3024 if (existing_conn->persistent_port != conn->persistent_port)
3025 continue;
3026 break;
3027 }
3028
3029 if (idx == max_ddbs)
3030 return QLA_ERROR;
3031
3032 DEBUG2(ql4_printk(KERN_INFO, ha,
3033 "Match found in fwdb sessions\n"));
3034 return QLA_SUCCESS;
3035 }
3036
3037 static struct iscsi_cls_session *
3038 qla4xxx_session_create(struct iscsi_endpoint *ep,
3039 uint16_t cmds_max, uint16_t qdepth,
3040 uint32_t initial_cmdsn)
3041 {
3042 struct iscsi_cls_session *cls_sess;
3043 struct scsi_qla_host *ha;
3044 struct qla_endpoint *qla_ep;
3045 struct ddb_entry *ddb_entry;
3046 uint16_t ddb_index;
3047 struct iscsi_session *sess;
3048 struct sockaddr *dst_addr;
3049 int ret;
3050
3051 if (!ep) {
3052 printk(KERN_ERR "qla4xxx: missing ep.\n");
3053 return NULL;
3054 }
3055
3056 qla_ep = ep->dd_data;
3057 dst_addr = (struct sockaddr *)&qla_ep->dst_addr;
3058 ha = to_qla_host(qla_ep->host);
3059 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__,
3060 ha->host_no));
3061
3062 ret = qla4xxx_get_ddb_index(ha, &ddb_index);
3063 if (ret == QLA_ERROR)
3064 return NULL;
3065
3066 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, qla_ep->host,
3067 cmds_max, sizeof(struct ddb_entry),
3068 sizeof(struct ql4_task_data),
3069 initial_cmdsn, ddb_index);
3070 if (!cls_sess)
3071 return NULL;
3072
3073 sess = cls_sess->dd_data;
3074 ddb_entry = sess->dd_data;
3075 ddb_entry->fw_ddb_index = ddb_index;
3076 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE;
3077 ddb_entry->ha = ha;
3078 ddb_entry->sess = cls_sess;
3079 ddb_entry->unblock_sess = qla4xxx_unblock_ddb;
3080 ddb_entry->ddb_change = qla4xxx_ddb_change;
3081 clear_bit(DDB_CONN_CLOSE_FAILURE, &ddb_entry->flags);
3082 cls_sess->recovery_tmo = ql4xsess_recovery_tmo;
3083 ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry;
3084 ha->tot_ddbs++;
3085
3086 return cls_sess;
3087 }
3088
3089 static void qla4xxx_session_destroy(struct iscsi_cls_session *cls_sess)
3090 {
3091 struct iscsi_session *sess;
3092 struct ddb_entry *ddb_entry;
3093 struct scsi_qla_host *ha;
3094 unsigned long flags, wtime;
3095 struct dev_db_entry *fw_ddb_entry = NULL;
3096 dma_addr_t fw_ddb_entry_dma;
3097 uint32_t ddb_state;
3098 int ret;
3099
3100 sess = cls_sess->dd_data;
3101 ddb_entry = sess->dd_data;
3102 ha = ddb_entry->ha;
3103 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__,
3104 ha->host_no));
3105
3106 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3107 &fw_ddb_entry_dma, GFP_KERNEL);
3108 if (!fw_ddb_entry) {
3109 ql4_printk(KERN_ERR, ha,
3110 "%s: Unable to allocate dma buffer\n", __func__);
3111 goto destroy_session;
3112 }
3113
3114 wtime = jiffies + (HZ * LOGOUT_TOV);
3115 do {
3116 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
3117 fw_ddb_entry, fw_ddb_entry_dma,
3118 NULL, NULL, &ddb_state, NULL,
3119 NULL, NULL);
3120 if (ret == QLA_ERROR)
3121 goto destroy_session;
3122
3123 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) ||
3124 (ddb_state == DDB_DS_SESSION_FAILED))
3125 goto destroy_session;
3126
3127 schedule_timeout_uninterruptible(HZ);
3128 } while ((time_after(wtime, jiffies)));
3129
3130 destroy_session:
3131 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
3132 if (test_and_clear_bit(DDB_CONN_CLOSE_FAILURE, &ddb_entry->flags))
3133 clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map);
3134 spin_lock_irqsave(&ha->hardware_lock, flags);
3135 qla4xxx_free_ddb(ha, ddb_entry);
3136 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3137
3138 iscsi_session_teardown(cls_sess);
3139
3140 if (fw_ddb_entry)
3141 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3142 fw_ddb_entry, fw_ddb_entry_dma);
3143 }
3144
3145 static struct iscsi_cls_conn *
3146 qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx)
3147 {
3148 struct iscsi_cls_conn *cls_conn;
3149 struct iscsi_session *sess;
3150 struct ddb_entry *ddb_entry;
3151 struct scsi_qla_host *ha;
3152
3153 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn),
3154 conn_idx);
3155 if (!cls_conn) {
3156 pr_info("%s: Can not create connection for conn_idx = %u\n",
3157 __func__, conn_idx);
3158 return NULL;
3159 }
3160
3161 sess = cls_sess->dd_data;
3162 ddb_entry = sess->dd_data;
3163 ddb_entry->conn = cls_conn;
3164
3165 ha = ddb_entry->ha;
3166 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: conn_idx = %u\n", __func__,
3167 conn_idx));
3168 return cls_conn;
3169 }
3170
3171 static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session,
3172 struct iscsi_cls_conn *cls_conn,
3173 uint64_t transport_fd, int is_leading)
3174 {
3175 struct iscsi_conn *conn;
3176 struct qla_conn *qla_conn;
3177 struct iscsi_endpoint *ep;
3178 struct ddb_entry *ddb_entry;
3179 struct scsi_qla_host *ha;
3180 struct iscsi_session *sess;
3181
3182 sess = cls_session->dd_data;
3183 ddb_entry = sess->dd_data;
3184 ha = ddb_entry->ha;
3185
3186 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: sid = %d, cid = %d\n", __func__,
3187 cls_session->sid, cls_conn->cid));
3188
3189 if (iscsi_conn_bind(cls_session, cls_conn, is_leading))
3190 return -EINVAL;
3191 ep = iscsi_lookup_endpoint(transport_fd);
3192 conn = cls_conn->dd_data;
3193 qla_conn = conn->dd_data;
3194 qla_conn->qla_ep = ep->dd_data;
3195 return 0;
3196 }
3197
3198 static int qla4xxx_conn_start(struct iscsi_cls_conn *cls_conn)
3199 {
3200 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
3201 struct iscsi_session *sess;
3202 struct ddb_entry *ddb_entry;
3203 struct scsi_qla_host *ha;
3204 struct dev_db_entry *fw_ddb_entry = NULL;
3205 dma_addr_t fw_ddb_entry_dma;
3206 uint32_t mbx_sts = 0;
3207 int ret = 0;
3208 int status = QLA_SUCCESS;
3209
3210 sess = cls_sess->dd_data;
3211 ddb_entry = sess->dd_data;
3212 ha = ddb_entry->ha;
3213 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: sid = %d, cid = %d\n", __func__,
3214 cls_sess->sid, cls_conn->cid));
3215
3216 /* Check if we have matching FW DDB, if yes then do not
3217 * login to this target. This could cause target to logout previous
3218 * connection
3219 */
3220 ret = qla4xxx_match_fwdb_session(ha, cls_conn);
3221 if (ret == QLA_SUCCESS) {
3222 ql4_printk(KERN_INFO, ha,
3223 "Session already exist in FW.\n");
3224 ret = -EEXIST;
3225 goto exit_conn_start;
3226 }
3227
3228 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3229 &fw_ddb_entry_dma, GFP_KERNEL);
3230 if (!fw_ddb_entry) {
3231 ql4_printk(KERN_ERR, ha,
3232 "%s: Unable to allocate dma buffer\n", __func__);
3233 ret = -ENOMEM;
3234 goto exit_conn_start;
3235 }
3236
3237 ret = qla4xxx_set_param_ddbentry(ha, ddb_entry, cls_conn, &mbx_sts);
3238 if (ret) {
3239 /* If iscsid is stopped and started then no need to do
3240 * set param again since ddb state will be already
3241 * active and FW does not allow set ddb to an
3242 * active session.
3243 */
3244 if (mbx_sts)
3245 if (ddb_entry->fw_ddb_device_state ==
3246 DDB_DS_SESSION_ACTIVE) {
3247 ddb_entry->unblock_sess(ddb_entry->sess);
3248 goto exit_set_param;
3249 }
3250
3251 ql4_printk(KERN_ERR, ha, "%s: Failed set param for index[%d]\n",
3252 __func__, ddb_entry->fw_ddb_index);
3253 goto exit_conn_start;
3254 }
3255
3256 status = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index);
3257 if (status == QLA_ERROR) {
3258 ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__,
3259 sess->targetname);
3260 ret = -EINVAL;
3261 goto exit_conn_start;
3262 }
3263
3264 if (ddb_entry->fw_ddb_device_state == DDB_DS_NO_CONNECTION_ACTIVE)
3265 ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS;
3266
3267 DEBUG2(printk(KERN_INFO "%s: DDB state [%d]\n", __func__,
3268 ddb_entry->fw_ddb_device_state));
3269
3270 exit_set_param:
3271 ret = 0;
3272
3273 exit_conn_start:
3274 if (fw_ddb_entry)
3275 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3276 fw_ddb_entry, fw_ddb_entry_dma);
3277 return ret;
3278 }
3279
3280 static void qla4xxx_conn_destroy(struct iscsi_cls_conn *cls_conn)
3281 {
3282 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
3283 struct iscsi_session *sess;
3284 struct scsi_qla_host *ha;
3285 struct ddb_entry *ddb_entry;
3286 int options;
3287
3288 sess = cls_sess->dd_data;
3289 ddb_entry = sess->dd_data;
3290 ha = ddb_entry->ha;
3291 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: cid = %d\n", __func__,
3292 cls_conn->cid));
3293
3294 options = LOGOUT_OPTION_CLOSE_SESSION;
3295 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR)
3296 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__);
3297 }
3298
3299 static void qla4xxx_task_work(struct work_struct *wdata)
3300 {
3301 struct ql4_task_data *task_data;
3302 struct scsi_qla_host *ha;
3303 struct passthru_status *sts;
3304 struct iscsi_task *task;
3305 struct iscsi_hdr *hdr;
3306 uint8_t *data;
3307 uint32_t data_len;
3308 struct iscsi_conn *conn;
3309 int hdr_len;
3310 itt_t itt;
3311
3312 task_data = container_of(wdata, struct ql4_task_data, task_work);
3313 ha = task_data->ha;
3314 task = task_data->task;
3315 sts = &task_data->sts;
3316 hdr_len = sizeof(struct iscsi_hdr);
3317
3318 DEBUG3(printk(KERN_INFO "Status returned\n"));
3319 DEBUG3(qla4xxx_dump_buffer(sts, 64));
3320 DEBUG3(printk(KERN_INFO "Response buffer"));
3321 DEBUG3(qla4xxx_dump_buffer(task_data->resp_buffer, 64));
3322
3323 conn = task->conn;
3324
3325 switch (sts->completionStatus) {
3326 case PASSTHRU_STATUS_COMPLETE:
3327 hdr = (struct iscsi_hdr *)task_data->resp_buffer;
3328 /* Assign back the itt in hdr, until we use the PREASSIGN_TAG */
3329 itt = sts->handle;
3330 hdr->itt = itt;
3331 data = task_data->resp_buffer + hdr_len;
3332 data_len = task_data->resp_len - hdr_len;
3333 iscsi_complete_pdu(conn, hdr, data, data_len);
3334 break;
3335 default:
3336 ql4_printk(KERN_ERR, ha, "Passthru failed status = 0x%x\n",
3337 sts->completionStatus);
3338 break;
3339 }
3340 return;
3341 }
3342
3343 static int qla4xxx_alloc_pdu(struct iscsi_task *task, uint8_t opcode)
3344 {
3345 struct ql4_task_data *task_data;
3346 struct iscsi_session *sess;
3347 struct ddb_entry *ddb_entry;
3348 struct scsi_qla_host *ha;
3349 int hdr_len;
3350
3351 sess = task->conn->session;
3352 ddb_entry = sess->dd_data;
3353 ha = ddb_entry->ha;
3354 task_data = task->dd_data;
3355 memset(task_data, 0, sizeof(struct ql4_task_data));
3356
3357 if (task->sc) {
3358 ql4_printk(KERN_INFO, ha,
3359 "%s: SCSI Commands not implemented\n", __func__);
3360 return -EINVAL;
3361 }
3362
3363 hdr_len = sizeof(struct iscsi_hdr);
3364 task_data->ha = ha;
3365 task_data->task = task;
3366
3367 if (task->data_count) {
3368 task_data->data_dma = dma_map_single(&ha->pdev->dev, task->data,
3369 task->data_count,
3370 PCI_DMA_TODEVICE);
3371 }
3372
3373 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n",
3374 __func__, task->conn->max_recv_dlength, hdr_len));
3375
3376 task_data->resp_len = task->conn->max_recv_dlength + hdr_len;
3377 task_data->resp_buffer = dma_alloc_coherent(&ha->pdev->dev,
3378 task_data->resp_len,
3379 &task_data->resp_dma,
3380 GFP_ATOMIC);
3381 if (!task_data->resp_buffer)
3382 goto exit_alloc_pdu;
3383
3384 task_data->req_len = task->data_count + hdr_len;
3385 task_data->req_buffer = dma_alloc_coherent(&ha->pdev->dev,
3386 task_data->req_len,
3387 &task_data->req_dma,
3388 GFP_ATOMIC);
3389 if (!task_data->req_buffer)
3390 goto exit_alloc_pdu;
3391
3392 task->hdr = task_data->req_buffer;
3393
3394 INIT_WORK(&task_data->task_work, qla4xxx_task_work);
3395
3396 return 0;
3397
3398 exit_alloc_pdu:
3399 if (task_data->resp_buffer)
3400 dma_free_coherent(&ha->pdev->dev, task_data->resp_len,
3401 task_data->resp_buffer, task_data->resp_dma);
3402
3403 if (task_data->req_buffer)
3404 dma_free_coherent(&ha->pdev->dev, task_data->req_len,
3405 task_data->req_buffer, task_data->req_dma);
3406 return -ENOMEM;
3407 }
3408
3409 static void qla4xxx_task_cleanup(struct iscsi_task *task)
3410 {
3411 struct ql4_task_data *task_data;
3412 struct iscsi_session *sess;
3413 struct ddb_entry *ddb_entry;
3414 struct scsi_qla_host *ha;
3415 int hdr_len;
3416
3417 hdr_len = sizeof(struct iscsi_hdr);
3418 sess = task->conn->session;
3419 ddb_entry = sess->dd_data;
3420 ha = ddb_entry->ha;
3421 task_data = task->dd_data;
3422
3423 if (task->data_count) {
3424 dma_unmap_single(&ha->pdev->dev, task_data->data_dma,
3425 task->data_count, PCI_DMA_TODEVICE);
3426 }
3427
3428 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n",
3429 __func__, task->conn->max_recv_dlength, hdr_len));
3430
3431 dma_free_coherent(&ha->pdev->dev, task_data->resp_len,
3432 task_data->resp_buffer, task_data->resp_dma);
3433 dma_free_coherent(&ha->pdev->dev, task_data->req_len,
3434 task_data->req_buffer, task_data->req_dma);
3435 return;
3436 }
3437
3438 static int qla4xxx_task_xmit(struct iscsi_task *task)
3439 {
3440 struct scsi_cmnd *sc = task->sc;
3441 struct iscsi_session *sess = task->conn->session;
3442 struct ddb_entry *ddb_entry = sess->dd_data;
3443 struct scsi_qla_host *ha = ddb_entry->ha;
3444
3445 if (!sc)
3446 return qla4xxx_send_passthru0(task);
3447
3448 ql4_printk(KERN_INFO, ha, "%s: scsi cmd xmit not implemented\n",
3449 __func__);
3450 return -ENOSYS;
3451 }
3452
3453 static int qla4xxx_copy_from_fwddb_param(struct iscsi_bus_flash_session *sess,
3454 struct iscsi_bus_flash_conn *conn,
3455 struct dev_db_entry *fw_ddb_entry)
3456 {
3457 unsigned long options = 0;
3458 int rc = 0;
3459
3460 options = le16_to_cpu(fw_ddb_entry->options);
3461 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options);
3462 if (test_bit(OPT_IPV6_DEVICE, &options)) {
3463 rc = iscsi_switch_str_param(&sess->portal_type,
3464 PORTAL_TYPE_IPV6);
3465 if (rc)
3466 goto exit_copy;
3467 } else {
3468 rc = iscsi_switch_str_param(&sess->portal_type,
3469 PORTAL_TYPE_IPV4);
3470 if (rc)
3471 goto exit_copy;
3472 }
3473
3474 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE,
3475 &options);
3476 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options);
3477 sess->entry_state = test_bit(OPT_ENTRY_STATE, &options);
3478
3479 options = le16_to_cpu(fw_ddb_entry->iscsi_options);
3480 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options);
3481 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options);
3482 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options);
3483 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options);
3484 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER,
3485 &options);
3486 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options);
3487 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options);
3488 conn->snack_req_en = test_bit(ISCSIOPT_SNACK_REQ_EN, &options);
3489 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN,
3490 &options);
3491 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options);
3492 sess->discovery_auth_optional =
3493 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options);
3494 if (test_bit(ISCSIOPT_ERL1, &options))
3495 sess->erl |= BIT_1;
3496 if (test_bit(ISCSIOPT_ERL0, &options))
3497 sess->erl |= BIT_0;
3498
3499 options = le16_to_cpu(fw_ddb_entry->tcp_options);
3500 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options);
3501 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options);
3502 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options);
3503 if (test_bit(TCPOPT_TIMER_SCALE3, &options))
3504 conn->tcp_timer_scale |= BIT_3;
3505 if (test_bit(TCPOPT_TIMER_SCALE2, &options))
3506 conn->tcp_timer_scale |= BIT_2;
3507 if (test_bit(TCPOPT_TIMER_SCALE1, &options))
3508 conn->tcp_timer_scale |= BIT_1;
3509
3510 conn->tcp_timer_scale >>= 1;
3511 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options);
3512
3513 options = le16_to_cpu(fw_ddb_entry->ip_options);
3514 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options);
3515
3516 conn->max_recv_dlength = BYTE_UNITS *
3517 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len);
3518 conn->max_xmit_dlength = BYTE_UNITS *
3519 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len);
3520 sess->first_burst = BYTE_UNITS *
3521 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len);
3522 sess->max_burst = BYTE_UNITS *
3523 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len);
3524 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t);
3525 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
3526 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain);
3527 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
3528 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss);
3529 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf;
3530 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf;
3531 conn->ipv6_flow_label = le16_to_cpu(fw_ddb_entry->ipv6_flow_lbl);
3532 conn->keepalive_timeout = le16_to_cpu(fw_ddb_entry->ka_timeout);
3533 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port);
3534 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn);
3535 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn);
3536 sess->discovery_parent_idx = le16_to_cpu(fw_ddb_entry->ddb_link);
3537 sess->discovery_parent_type = le16_to_cpu(fw_ddb_entry->ddb_link);
3538 sess->chap_out_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
3539 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid);
3540
3541 sess->default_taskmgmt_timeout =
3542 le16_to_cpu(fw_ddb_entry->def_timeout);
3543 conn->port = le16_to_cpu(fw_ddb_entry->port);
3544
3545 options = le16_to_cpu(fw_ddb_entry->options);
3546 conn->ipaddress = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL);
3547 if (!conn->ipaddress) {
3548 rc = -ENOMEM;
3549 goto exit_copy;
3550 }
3551
3552 conn->redirect_ipaddr = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL);
3553 if (!conn->redirect_ipaddr) {
3554 rc = -ENOMEM;
3555 goto exit_copy;
3556 }
3557
3558 memcpy(conn->ipaddress, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN);
3559 memcpy(conn->redirect_ipaddr, fw_ddb_entry->tgt_addr, IPv6_ADDR_LEN);
3560
3561 if (test_bit(OPT_IPV6_DEVICE, &options)) {
3562 conn->ipv6_traffic_class = fw_ddb_entry->ipv4_tos;
3563
3564 conn->link_local_ipv6_addr = kmemdup(
3565 fw_ddb_entry->link_local_ipv6_addr,
3566 IPv6_ADDR_LEN, GFP_KERNEL);
3567 if (!conn->link_local_ipv6_addr) {
3568 rc = -ENOMEM;
3569 goto exit_copy;
3570 }
3571 } else {
3572 conn->ipv4_tos = fw_ddb_entry->ipv4_tos;
3573 }
3574
3575 if (fw_ddb_entry->iscsi_name[0]) {
3576 rc = iscsi_switch_str_param(&sess->targetname,
3577 (char *)fw_ddb_entry->iscsi_name);
3578 if (rc)
3579 goto exit_copy;
3580 }
3581
3582 if (fw_ddb_entry->iscsi_alias[0]) {
3583 rc = iscsi_switch_str_param(&sess->targetalias,
3584 (char *)fw_ddb_entry->iscsi_alias);
3585 if (rc)
3586 goto exit_copy;
3587 }
3588
3589 COPY_ISID(sess->isid, fw_ddb_entry->isid);
3590
3591 exit_copy:
3592 return rc;
3593 }
3594
3595 static int qla4xxx_copy_to_fwddb_param(struct iscsi_bus_flash_session *sess,
3596 struct iscsi_bus_flash_conn *conn,
3597 struct dev_db_entry *fw_ddb_entry)
3598 {
3599 uint16_t options;
3600 int rc = 0;
3601
3602 options = le16_to_cpu(fw_ddb_entry->options);
3603 SET_BITVAL(conn->is_fw_assigned_ipv6, options, BIT_11);
3604 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4))
3605 options |= BIT_8;
3606 else
3607 options &= ~BIT_8;
3608
3609 SET_BITVAL(sess->auto_snd_tgt_disable, options, BIT_6);
3610 SET_BITVAL(sess->discovery_sess, options, BIT_4);
3611 SET_BITVAL(sess->entry_state, options, BIT_3);
3612 fw_ddb_entry->options = cpu_to_le16(options);
3613
3614 options = le16_to_cpu(fw_ddb_entry->iscsi_options);
3615 SET_BITVAL(conn->hdrdgst_en, options, BIT_13);
3616 SET_BITVAL(conn->datadgst_en, options, BIT_12);
3617 SET_BITVAL(sess->imm_data_en, options, BIT_11);
3618 SET_BITVAL(sess->initial_r2t_en, options, BIT_10);
3619 SET_BITVAL(sess->dataseq_inorder_en, options, BIT_9);
3620 SET_BITVAL(sess->pdu_inorder_en, options, BIT_8);
3621 SET_BITVAL(sess->chap_auth_en, options, BIT_7);
3622 SET_BITVAL(conn->snack_req_en, options, BIT_6);
3623 SET_BITVAL(sess->discovery_logout_en, options, BIT_5);
3624 SET_BITVAL(sess->bidi_chap_en, options, BIT_4);
3625 SET_BITVAL(sess->discovery_auth_optional, options, BIT_3);
3626 SET_BITVAL(sess->erl & BIT_1, options, BIT_1);
3627 SET_BITVAL(sess->erl & BIT_0, options, BIT_0);
3628 fw_ddb_entry->iscsi_options = cpu_to_le16(options);
3629
3630 options = le16_to_cpu(fw_ddb_entry->tcp_options);
3631 SET_BITVAL(conn->tcp_timestamp_stat, options, BIT_6);
3632 SET_BITVAL(conn->tcp_nagle_disable, options, BIT_5);
3633 SET_BITVAL(conn->tcp_wsf_disable, options, BIT_4);
3634 SET_BITVAL(conn->tcp_timer_scale & BIT_2, options, BIT_3);
3635 SET_BITVAL(conn->tcp_timer_scale & BIT_1, options, BIT_2);
3636 SET_BITVAL(conn->tcp_timer_scale & BIT_0, options, BIT_1);
3637 SET_BITVAL(conn->tcp_timestamp_en, options, BIT_0);
3638 fw_ddb_entry->tcp_options = cpu_to_le16(options);
3639
3640 options = le16_to_cpu(fw_ddb_entry->ip_options);
3641 SET_BITVAL(conn->fragment_disable, options, BIT_4);
3642 fw_ddb_entry->ip_options = cpu_to_le16(options);
3643
3644 fw_ddb_entry->iscsi_max_outsnd_r2t = cpu_to_le16(sess->max_r2t);
3645 fw_ddb_entry->iscsi_max_rcv_data_seg_len =
3646 cpu_to_le16(conn->max_recv_dlength / BYTE_UNITS);
3647 fw_ddb_entry->iscsi_max_snd_data_seg_len =
3648 cpu_to_le16(conn->max_xmit_dlength / BYTE_UNITS);
3649 fw_ddb_entry->iscsi_first_burst_len =
3650 cpu_to_le16(sess->first_burst / BYTE_UNITS);
3651 fw_ddb_entry->iscsi_max_burst_len = cpu_to_le16(sess->max_burst /
3652 BYTE_UNITS);
3653 fw_ddb_entry->iscsi_def_time2wait = cpu_to_le16(sess->time2wait);
3654 fw_ddb_entry->iscsi_def_time2retain = cpu_to_le16(sess->time2retain);
3655 fw_ddb_entry->tgt_portal_grp = cpu_to_le16(sess->tpgt);
3656 fw_ddb_entry->mss = cpu_to_le16(conn->max_segment_size);
3657 fw_ddb_entry->tcp_xmt_wsf = (uint8_t) cpu_to_le32(conn->tcp_xmit_wsf);
3658 fw_ddb_entry->tcp_rcv_wsf = (uint8_t) cpu_to_le32(conn->tcp_recv_wsf);
3659 fw_ddb_entry->ipv6_flow_lbl = cpu_to_le16(conn->ipv6_flow_label);
3660 fw_ddb_entry->ka_timeout = cpu_to_le16(conn->keepalive_timeout);
3661 fw_ddb_entry->lcl_port = cpu_to_le16(conn->local_port);
3662 fw_ddb_entry->stat_sn = cpu_to_le32(conn->statsn);
3663 fw_ddb_entry->exp_stat_sn = cpu_to_le32(conn->exp_statsn);
3664 fw_ddb_entry->ddb_link = cpu_to_le16(sess->discovery_parent_idx);
3665 fw_ddb_entry->chap_tbl_idx = cpu_to_le16(sess->chap_out_idx);
3666 fw_ddb_entry->tsid = cpu_to_le16(sess->tsid);
3667 fw_ddb_entry->port = cpu_to_le16(conn->port);
3668 fw_ddb_entry->def_timeout =
3669 cpu_to_le16(sess->default_taskmgmt_timeout);
3670
3671 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4))
3672 fw_ddb_entry->ipv4_tos = conn->ipv6_traffic_class;
3673 else
3674 fw_ddb_entry->ipv4_tos = conn->ipv4_tos;
3675
3676 if (conn->ipaddress)
3677 memcpy(fw_ddb_entry->ip_addr, conn->ipaddress,
3678 sizeof(fw_ddb_entry->ip_addr));
3679
3680 if (conn->redirect_ipaddr)
3681 memcpy(fw_ddb_entry->tgt_addr, conn->redirect_ipaddr,
3682 sizeof(fw_ddb_entry->tgt_addr));
3683
3684 if (conn->link_local_ipv6_addr)
3685 memcpy(fw_ddb_entry->link_local_ipv6_addr,
3686 conn->link_local_ipv6_addr,
3687 sizeof(fw_ddb_entry->link_local_ipv6_addr));
3688
3689 if (sess->targetname)
3690 memcpy(fw_ddb_entry->iscsi_name, sess->targetname,
3691 sizeof(fw_ddb_entry->iscsi_name));
3692
3693 if (sess->targetalias)
3694 memcpy(fw_ddb_entry->iscsi_alias, sess->targetalias,
3695 sizeof(fw_ddb_entry->iscsi_alias));
3696
3697 COPY_ISID(fw_ddb_entry->isid, sess->isid);
3698
3699 return rc;
3700 }
3701
3702 static void qla4xxx_copy_to_sess_conn_params(struct iscsi_conn *conn,
3703 struct iscsi_session *sess,
3704 struct dev_db_entry *fw_ddb_entry)
3705 {
3706 unsigned long options = 0;
3707 uint16_t ddb_link;
3708 uint16_t disc_parent;
3709 char ip_addr[DDB_IPADDR_LEN];
3710
3711 options = le16_to_cpu(fw_ddb_entry->options);
3712 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options);
3713 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE,
3714 &options);
3715 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options);
3716
3717 options = le16_to_cpu(fw_ddb_entry->iscsi_options);
3718 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options);
3719 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options);
3720 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options);
3721 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options);
3722 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER,
3723 &options);
3724 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options);
3725 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options);
3726 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN,
3727 &options);
3728 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options);
3729 sess->discovery_auth_optional =
3730 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options);
3731 if (test_bit(ISCSIOPT_ERL1, &options))
3732 sess->erl |= BIT_1;
3733 if (test_bit(ISCSIOPT_ERL0, &options))
3734 sess->erl |= BIT_0;
3735
3736 options = le16_to_cpu(fw_ddb_entry->tcp_options);
3737 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options);
3738 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options);
3739 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options);
3740 if (test_bit(TCPOPT_TIMER_SCALE3, &options))
3741 conn->tcp_timer_scale |= BIT_3;
3742 if (test_bit(TCPOPT_TIMER_SCALE2, &options))
3743 conn->tcp_timer_scale |= BIT_2;
3744 if (test_bit(TCPOPT_TIMER_SCALE1, &options))
3745 conn->tcp_timer_scale |= BIT_1;
3746
3747 conn->tcp_timer_scale >>= 1;
3748 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options);
3749
3750 options = le16_to_cpu(fw_ddb_entry->ip_options);
3751 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options);
3752
3753 conn->max_recv_dlength = BYTE_UNITS *
3754 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len);
3755 conn->max_xmit_dlength = BYTE_UNITS *
3756 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len);
3757 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t);
3758 sess->first_burst = BYTE_UNITS *
3759 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len);
3760 sess->max_burst = BYTE_UNITS *
3761 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len);
3762 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
3763 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain);
3764 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
3765 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss);
3766 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf;
3767 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf;
3768 conn->ipv4_tos = fw_ddb_entry->ipv4_tos;
3769 conn->keepalive_tmo = le16_to_cpu(fw_ddb_entry->ka_timeout);
3770 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port);
3771 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn);
3772 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn);
3773 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid);
3774 COPY_ISID(sess->isid, fw_ddb_entry->isid);
3775
3776 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
3777 if (ddb_link == DDB_ISNS)
3778 disc_parent = ISCSI_DISC_PARENT_ISNS;
3779 else if (ddb_link == DDB_NO_LINK)
3780 disc_parent = ISCSI_DISC_PARENT_UNKNOWN;
3781 else if (ddb_link < MAX_DDB_ENTRIES)
3782 disc_parent = ISCSI_DISC_PARENT_SENDTGT;
3783 else
3784 disc_parent = ISCSI_DISC_PARENT_UNKNOWN;
3785
3786 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_DISCOVERY_PARENT_TYPE,
3787 iscsi_get_discovery_parent_name(disc_parent), 0);
3788
3789 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_TARGET_ALIAS,
3790 (char *)fw_ddb_entry->iscsi_alias, 0);
3791
3792 options = le16_to_cpu(fw_ddb_entry->options);
3793 if (options & DDB_OPT_IPV6_DEVICE) {
3794 memset(ip_addr, 0, sizeof(ip_addr));
3795 sprintf(ip_addr, "%pI6", fw_ddb_entry->link_local_ipv6_addr);
3796 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_LOCAL_IPADDR,
3797 (char *)ip_addr, 0);
3798 }
3799 }
3800
3801 static void qla4xxx_copy_fwddb_param(struct scsi_qla_host *ha,
3802 struct dev_db_entry *fw_ddb_entry,
3803 struct iscsi_cls_session *cls_sess,
3804 struct iscsi_cls_conn *cls_conn)
3805 {
3806 int buflen = 0;
3807 struct iscsi_session *sess;
3808 struct ddb_entry *ddb_entry;
3809 struct ql4_chap_table chap_tbl;
3810 struct iscsi_conn *conn;
3811 char ip_addr[DDB_IPADDR_LEN];
3812 uint16_t options = 0;
3813
3814 sess = cls_sess->dd_data;
3815 ddb_entry = sess->dd_data;
3816 conn = cls_conn->dd_data;
3817 memset(&chap_tbl, 0, sizeof(chap_tbl));
3818
3819 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
3820
3821 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry);
3822
3823 sess->def_taskmgmt_tmo = le16_to_cpu(fw_ddb_entry->def_timeout);
3824 conn->persistent_port = le16_to_cpu(fw_ddb_entry->port);
3825
3826 memset(ip_addr, 0, sizeof(ip_addr));
3827 options = le16_to_cpu(fw_ddb_entry->options);
3828 if (options & DDB_OPT_IPV6_DEVICE) {
3829 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv6", 4);
3830
3831 memset(ip_addr, 0, sizeof(ip_addr));
3832 sprintf(ip_addr, "%pI6", fw_ddb_entry->ip_addr);
3833 } else {
3834 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv4", 4);
3835 sprintf(ip_addr, "%pI4", fw_ddb_entry->ip_addr);
3836 }
3837
3838 iscsi_set_param(cls_conn, ISCSI_PARAM_PERSISTENT_ADDRESS,
3839 (char *)ip_addr, buflen);
3840 iscsi_set_param(cls_conn, ISCSI_PARAM_TARGET_NAME,
3841 (char *)fw_ddb_entry->iscsi_name, buflen);
3842 iscsi_set_param(cls_conn, ISCSI_PARAM_INITIATOR_NAME,
3843 (char *)ha->name_string, buflen);
3844
3845 if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) {
3846 if (!qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name,
3847 chap_tbl.secret,
3848 ddb_entry->chap_tbl_idx)) {
3849 iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME,
3850 (char *)chap_tbl.name,
3851 strlen((char *)chap_tbl.name));
3852 iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD,
3853 (char *)chap_tbl.secret,
3854 chap_tbl.secret_len);
3855 }
3856 }
3857 }
3858
3859 void qla4xxx_update_session_conn_fwddb_param(struct scsi_qla_host *ha,
3860 struct ddb_entry *ddb_entry)
3861 {
3862 struct iscsi_cls_session *cls_sess;
3863 struct iscsi_cls_conn *cls_conn;
3864 uint32_t ddb_state;
3865 dma_addr_t fw_ddb_entry_dma;
3866 struct dev_db_entry *fw_ddb_entry;
3867
3868 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3869 &fw_ddb_entry_dma, GFP_KERNEL);
3870 if (!fw_ddb_entry) {
3871 ql4_printk(KERN_ERR, ha,
3872 "%s: Unable to allocate dma buffer\n", __func__);
3873 goto exit_session_conn_fwddb_param;
3874 }
3875
3876 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry,
3877 fw_ddb_entry_dma, NULL, NULL, &ddb_state,
3878 NULL, NULL, NULL) == QLA_ERROR) {
3879 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
3880 "get_ddb_entry for fw_ddb_index %d\n",
3881 ha->host_no, __func__,
3882 ddb_entry->fw_ddb_index));
3883 goto exit_session_conn_fwddb_param;
3884 }
3885
3886 cls_sess = ddb_entry->sess;
3887
3888 cls_conn = ddb_entry->conn;
3889
3890 /* Update params */
3891 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn);
3892
3893 exit_session_conn_fwddb_param:
3894 if (fw_ddb_entry)
3895 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3896 fw_ddb_entry, fw_ddb_entry_dma);
3897 }
3898
3899 void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha,
3900 struct ddb_entry *ddb_entry)
3901 {
3902 struct iscsi_cls_session *cls_sess;
3903 struct iscsi_cls_conn *cls_conn;
3904 struct iscsi_session *sess;
3905 struct iscsi_conn *conn;
3906 uint32_t ddb_state;
3907 dma_addr_t fw_ddb_entry_dma;
3908 struct dev_db_entry *fw_ddb_entry;
3909
3910 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3911 &fw_ddb_entry_dma, GFP_KERNEL);
3912 if (!fw_ddb_entry) {
3913 ql4_printk(KERN_ERR, ha,
3914 "%s: Unable to allocate dma buffer\n", __func__);
3915 goto exit_session_conn_param;
3916 }
3917
3918 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry,
3919 fw_ddb_entry_dma, NULL, NULL, &ddb_state,
3920 NULL, NULL, NULL) == QLA_ERROR) {
3921 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
3922 "get_ddb_entry for fw_ddb_index %d\n",
3923 ha->host_no, __func__,
3924 ddb_entry->fw_ddb_index));
3925 goto exit_session_conn_param;
3926 }
3927
3928 cls_sess = ddb_entry->sess;
3929 sess = cls_sess->dd_data;
3930
3931 cls_conn = ddb_entry->conn;
3932 conn = cls_conn->dd_data;
3933
3934 /* Update timers after login */
3935 ddb_entry->default_relogin_timeout =
3936 (le16_to_cpu(fw_ddb_entry->def_timeout) > LOGIN_TOV) &&
3937 (le16_to_cpu(fw_ddb_entry->def_timeout) < LOGIN_TOV * 10) ?
3938 le16_to_cpu(fw_ddb_entry->def_timeout) : LOGIN_TOV;
3939 ddb_entry->default_time2wait =
3940 le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
3941
3942 /* Update params */
3943 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
3944 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry);
3945
3946 memcpy(sess->initiatorname, ha->name_string,
3947 min(sizeof(ha->name_string), sizeof(sess->initiatorname)));
3948
3949 exit_session_conn_param:
3950 if (fw_ddb_entry)
3951 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3952 fw_ddb_entry, fw_ddb_entry_dma);
3953 }
3954
3955 /*
3956 * Timer routines
3957 */
3958
3959 static void qla4xxx_start_timer(struct scsi_qla_host *ha, void *func,
3960 unsigned long interval)
3961 {
3962 DEBUG(printk("scsi: %s: Starting timer thread for adapter %d\n",
3963 __func__, ha->host->host_no));
3964 init_timer(&ha->timer);
3965 ha->timer.expires = jiffies + interval * HZ;
3966 ha->timer.data = (unsigned long)ha;
3967 ha->timer.function = (void (*)(unsigned long))func;
3968 add_timer(&ha->timer);
3969 ha->timer_active = 1;
3970 }
3971
3972 static void qla4xxx_stop_timer(struct scsi_qla_host *ha)
3973 {
3974 del_timer_sync(&ha->timer);
3975 ha->timer_active = 0;
3976 }
3977
3978 /***
3979 * qla4xxx_mark_device_missing - blocks the session
3980 * @cls_session: Pointer to the session to be blocked
3981 * @ddb_entry: Pointer to device database entry
3982 *
3983 * This routine marks a device missing and close connection.
3984 **/
3985 void qla4xxx_mark_device_missing(struct iscsi_cls_session *cls_session)
3986 {
3987 iscsi_block_session(cls_session);
3988 }
3989
3990 /**
3991 * qla4xxx_mark_all_devices_missing - mark all devices as missing.
3992 * @ha: Pointer to host adapter structure.
3993 *
3994 * This routine marks a device missing and resets the relogin retry count.
3995 **/
3996 void qla4xxx_mark_all_devices_missing(struct scsi_qla_host *ha)
3997 {
3998 iscsi_host_for_each_session(ha->host, qla4xxx_mark_device_missing);
3999 }
4000
4001 static struct srb* qla4xxx_get_new_srb(struct scsi_qla_host *ha,
4002 struct ddb_entry *ddb_entry,
4003 struct scsi_cmnd *cmd)
4004 {
4005 struct srb *srb;
4006
4007 srb = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
4008 if (!srb)
4009 return srb;
4010
4011 kref_init(&srb->srb_ref);
4012 srb->ha = ha;
4013 srb->ddb = ddb_entry;
4014 srb->cmd = cmd;
4015 srb->flags = 0;
4016 CMD_SP(cmd) = (void *)srb;
4017
4018 return srb;
4019 }
4020
4021 static void qla4xxx_srb_free_dma(struct scsi_qla_host *ha, struct srb *srb)
4022 {
4023 struct scsi_cmnd *cmd = srb->cmd;
4024
4025 if (srb->flags & SRB_DMA_VALID) {
4026 scsi_dma_unmap(cmd);
4027 srb->flags &= ~SRB_DMA_VALID;
4028 }
4029 CMD_SP(cmd) = NULL;
4030 }
4031
4032 void qla4xxx_srb_compl(struct kref *ref)
4033 {
4034 struct srb *srb = container_of(ref, struct srb, srb_ref);
4035 struct scsi_cmnd *cmd = srb->cmd;
4036 struct scsi_qla_host *ha = srb->ha;
4037
4038 qla4xxx_srb_free_dma(ha, srb);
4039
4040 mempool_free(srb, ha->srb_mempool);
4041
4042 cmd->scsi_done(cmd);
4043 }
4044
4045 /**
4046 * qla4xxx_queuecommand - scsi layer issues scsi command to driver.
4047 * @host: scsi host
4048 * @cmd: Pointer to Linux's SCSI command structure
4049 *
4050 * Remarks:
4051 * This routine is invoked by Linux to send a SCSI command to the driver.
4052 * The mid-level driver tries to ensure that queuecommand never gets
4053 * invoked concurrently with itself or the interrupt handler (although
4054 * the interrupt handler may call this routine as part of request-
4055 * completion handling). Unfortunely, it sometimes calls the scheduler
4056 * in interrupt context which is a big NO! NO!.
4057 **/
4058 static int qla4xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
4059 {
4060 struct scsi_qla_host *ha = to_qla_host(host);
4061 struct ddb_entry *ddb_entry = cmd->device->hostdata;
4062 struct iscsi_cls_session *sess = ddb_entry->sess;
4063 struct srb *srb;
4064 int rval;
4065
4066 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
4067 if (test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags))
4068 cmd->result = DID_NO_CONNECT << 16;
4069 else
4070 cmd->result = DID_REQUEUE << 16;
4071 goto qc_fail_command;
4072 }
4073
4074 if (!sess) {
4075 cmd->result = DID_IMM_RETRY << 16;
4076 goto qc_fail_command;
4077 }
4078
4079 rval = iscsi_session_chkready(sess);
4080 if (rval) {
4081 cmd->result = rval;
4082 goto qc_fail_command;
4083 }
4084
4085 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
4086 test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) ||
4087 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
4088 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) ||
4089 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) ||
4090 !test_bit(AF_ONLINE, &ha->flags) ||
4091 !test_bit(AF_LINK_UP, &ha->flags) ||
4092 test_bit(AF_LOOPBACK, &ha->flags) ||
4093 test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags) ||
4094 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags) ||
4095 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))
4096 goto qc_host_busy;
4097
4098 srb = qla4xxx_get_new_srb(ha, ddb_entry, cmd);
4099 if (!srb)
4100 goto qc_host_busy;
4101
4102 rval = qla4xxx_send_command_to_isp(ha, srb);
4103 if (rval != QLA_SUCCESS)
4104 goto qc_host_busy_free_sp;
4105
4106 return 0;
4107
4108 qc_host_busy_free_sp:
4109 qla4xxx_srb_free_dma(ha, srb);
4110 mempool_free(srb, ha->srb_mempool);
4111
4112 qc_host_busy:
4113 return SCSI_MLQUEUE_HOST_BUSY;
4114
4115 qc_fail_command:
4116 cmd->scsi_done(cmd);
4117
4118 return 0;
4119 }
4120
4121 /**
4122 * qla4xxx_mem_free - frees memory allocated to adapter
4123 * @ha: Pointer to host adapter structure.
4124 *
4125 * Frees memory previously allocated by qla4xxx_mem_alloc
4126 **/
4127 static void qla4xxx_mem_free(struct scsi_qla_host *ha)
4128 {
4129 if (ha->queues)
4130 dma_free_coherent(&ha->pdev->dev, ha->queues_len, ha->queues,
4131 ha->queues_dma);
4132
4133 if (ha->fw_dump)
4134 vfree(ha->fw_dump);
4135
4136 ha->queues_len = 0;
4137 ha->queues = NULL;
4138 ha->queues_dma = 0;
4139 ha->request_ring = NULL;
4140 ha->request_dma = 0;
4141 ha->response_ring = NULL;
4142 ha->response_dma = 0;
4143 ha->shadow_regs = NULL;
4144 ha->shadow_regs_dma = 0;
4145 ha->fw_dump = NULL;
4146 ha->fw_dump_size = 0;
4147
4148 /* Free srb pool. */
4149 if (ha->srb_mempool)
4150 mempool_destroy(ha->srb_mempool);
4151
4152 ha->srb_mempool = NULL;
4153
4154 if (ha->chap_dma_pool)
4155 dma_pool_destroy(ha->chap_dma_pool);
4156
4157 if (ha->chap_list)
4158 vfree(ha->chap_list);
4159 ha->chap_list = NULL;
4160
4161 if (ha->fw_ddb_dma_pool)
4162 dma_pool_destroy(ha->fw_ddb_dma_pool);
4163
4164 /* release io space registers */
4165 if (is_qla8022(ha)) {
4166 if (ha->nx_pcibase)
4167 iounmap(
4168 (struct device_reg_82xx __iomem *)ha->nx_pcibase);
4169 } else if (is_qla8032(ha) || is_qla8042(ha)) {
4170 if (ha->nx_pcibase)
4171 iounmap(
4172 (struct device_reg_83xx __iomem *)ha->nx_pcibase);
4173 } else if (ha->reg) {
4174 iounmap(ha->reg);
4175 }
4176
4177 if (ha->reset_tmplt.buff)
4178 vfree(ha->reset_tmplt.buff);
4179
4180 pci_release_regions(ha->pdev);
4181 }
4182
4183 /**
4184 * qla4xxx_mem_alloc - allocates memory for use by adapter.
4185 * @ha: Pointer to host adapter structure
4186 *
4187 * Allocates DMA memory for request and response queues. Also allocates memory
4188 * for srbs.
4189 **/
4190 static int qla4xxx_mem_alloc(struct scsi_qla_host *ha)
4191 {
4192 unsigned long align;
4193
4194 /* Allocate contiguous block of DMA memory for queues. */
4195 ha->queues_len = ((REQUEST_QUEUE_DEPTH * QUEUE_SIZE) +
4196 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE) +
4197 sizeof(struct shadow_regs) +
4198 MEM_ALIGN_VALUE +
4199 (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
4200 ha->queues = dma_alloc_coherent(&ha->pdev->dev, ha->queues_len,
4201 &ha->queues_dma, GFP_KERNEL);
4202 if (ha->queues == NULL) {
4203 ql4_printk(KERN_WARNING, ha,
4204 "Memory Allocation failed - queues.\n");
4205
4206 goto mem_alloc_error_exit;
4207 }
4208 memset(ha->queues, 0, ha->queues_len);
4209
4210 /*
4211 * As per RISC alignment requirements -- the bus-address must be a
4212 * multiple of the request-ring size (in bytes).
4213 */
4214 align = 0;
4215 if ((unsigned long)ha->queues_dma & (MEM_ALIGN_VALUE - 1))
4216 align = MEM_ALIGN_VALUE - ((unsigned long)ha->queues_dma &
4217 (MEM_ALIGN_VALUE - 1));
4218
4219 /* Update request and response queue pointers. */
4220 ha->request_dma = ha->queues_dma + align;
4221 ha->request_ring = (struct queue_entry *) (ha->queues + align);
4222 ha->response_dma = ha->queues_dma + align +
4223 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE);
4224 ha->response_ring = (struct queue_entry *) (ha->queues + align +
4225 (REQUEST_QUEUE_DEPTH *
4226 QUEUE_SIZE));
4227 ha->shadow_regs_dma = ha->queues_dma + align +
4228 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE) +
4229 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE);
4230 ha->shadow_regs = (struct shadow_regs *) (ha->queues + align +
4231 (REQUEST_QUEUE_DEPTH *
4232 QUEUE_SIZE) +
4233 (RESPONSE_QUEUE_DEPTH *
4234 QUEUE_SIZE));
4235
4236 /* Allocate memory for srb pool. */
4237 ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab,
4238 mempool_free_slab, srb_cachep);
4239 if (ha->srb_mempool == NULL) {
4240 ql4_printk(KERN_WARNING, ha,
4241 "Memory Allocation failed - SRB Pool.\n");
4242
4243 goto mem_alloc_error_exit;
4244 }
4245
4246 ha->chap_dma_pool = dma_pool_create("ql4_chap", &ha->pdev->dev,
4247 CHAP_DMA_BLOCK_SIZE, 8, 0);
4248
4249 if (ha->chap_dma_pool == NULL) {
4250 ql4_printk(KERN_WARNING, ha,
4251 "%s: chap_dma_pool allocation failed..\n", __func__);
4252 goto mem_alloc_error_exit;
4253 }
4254
4255 ha->fw_ddb_dma_pool = dma_pool_create("ql4_fw_ddb", &ha->pdev->dev,
4256 DDB_DMA_BLOCK_SIZE, 8, 0);
4257
4258 if (ha->fw_ddb_dma_pool == NULL) {
4259 ql4_printk(KERN_WARNING, ha,
4260 "%s: fw_ddb_dma_pool allocation failed..\n",
4261 __func__);
4262 goto mem_alloc_error_exit;
4263 }
4264
4265 return QLA_SUCCESS;
4266
4267 mem_alloc_error_exit:
4268 qla4xxx_mem_free(ha);
4269 return QLA_ERROR;
4270 }
4271
4272 /**
4273 * qla4_8xxx_check_temp - Check the ISP82XX temperature.
4274 * @ha: adapter block pointer.
4275 *
4276 * Note: The caller should not hold the idc lock.
4277 **/
4278 static int qla4_8xxx_check_temp(struct scsi_qla_host *ha)
4279 {
4280 uint32_t temp, temp_state, temp_val;
4281 int status = QLA_SUCCESS;
4282
4283 temp = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_TEMP_STATE);
4284
4285 temp_state = qla82xx_get_temp_state(temp);
4286 temp_val = qla82xx_get_temp_val(temp);
4287
4288 if (temp_state == QLA82XX_TEMP_PANIC) {
4289 ql4_printk(KERN_WARNING, ha, "Device temperature %d degrees C"
4290 " exceeds maximum allowed. Hardware has been shut"
4291 " down.\n", temp_val);
4292 status = QLA_ERROR;
4293 } else if (temp_state == QLA82XX_TEMP_WARN) {
4294 if (ha->temperature == QLA82XX_TEMP_NORMAL)
4295 ql4_printk(KERN_WARNING, ha, "Device temperature %d"
4296 " degrees C exceeds operating range."
4297 " Immediate action needed.\n", temp_val);
4298 } else {
4299 if (ha->temperature == QLA82XX_TEMP_WARN)
4300 ql4_printk(KERN_INFO, ha, "Device temperature is"
4301 " now %d degrees C in normal range.\n",
4302 temp_val);
4303 }
4304 ha->temperature = temp_state;
4305 return status;
4306 }
4307
4308 /**
4309 * qla4_8xxx_check_fw_alive - Check firmware health
4310 * @ha: Pointer to host adapter structure.
4311 *
4312 * Context: Interrupt
4313 **/
4314 static int qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha)
4315 {
4316 uint32_t fw_heartbeat_counter;
4317 int status = QLA_SUCCESS;
4318
4319 fw_heartbeat_counter = qla4_8xxx_rd_direct(ha,
4320 QLA8XXX_PEG_ALIVE_COUNTER);
4321 /* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */
4322 if (fw_heartbeat_counter == 0xffffffff) {
4323 DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Device in frozen "
4324 "state, QLA82XX_PEG_ALIVE_COUNTER is 0xffffffff\n",
4325 ha->host_no, __func__));
4326 return status;
4327 }
4328
4329 if (ha->fw_heartbeat_counter == fw_heartbeat_counter) {
4330 ha->seconds_since_last_heartbeat++;
4331 /* FW not alive after 2 seconds */
4332 if (ha->seconds_since_last_heartbeat == 2) {
4333 ha->seconds_since_last_heartbeat = 0;
4334 qla4_8xxx_dump_peg_reg(ha);
4335 status = QLA_ERROR;
4336 }
4337 } else
4338 ha->seconds_since_last_heartbeat = 0;
4339
4340 ha->fw_heartbeat_counter = fw_heartbeat_counter;
4341 return status;
4342 }
4343
4344 static void qla4_8xxx_process_fw_error(struct scsi_qla_host *ha)
4345 {
4346 uint32_t halt_status;
4347 int halt_status_unrecoverable = 0;
4348
4349 halt_status = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_HALT_STATUS1);
4350
4351 if (is_qla8022(ha)) {
4352 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
4353 __func__);
4354 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
4355 CRB_NIU_XG_PAUSE_CTL_P0 |
4356 CRB_NIU_XG_PAUSE_CTL_P1);
4357
4358 if (QLA82XX_FWERROR_CODE(halt_status) == 0x67)
4359 ql4_printk(KERN_ERR, ha, "%s: Firmware aborted with error code 0x00006700. Device is being reset\n",
4360 __func__);
4361 if (halt_status & HALT_STATUS_UNRECOVERABLE)
4362 halt_status_unrecoverable = 1;
4363 } else if (is_qla8032(ha) || is_qla8042(ha)) {
4364 if (halt_status & QLA83XX_HALT_STATUS_FW_RESET)
4365 ql4_printk(KERN_ERR, ha, "%s: Firmware error detected device is being reset\n",
4366 __func__);
4367 else if (halt_status & QLA83XX_HALT_STATUS_UNRECOVERABLE)
4368 halt_status_unrecoverable = 1;
4369 }
4370
4371 /*
4372 * Since we cannot change dev_state in interrupt context,
4373 * set appropriate DPC flag then wakeup DPC
4374 */
4375 if (halt_status_unrecoverable) {
4376 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags);
4377 } else {
4378 ql4_printk(KERN_INFO, ha, "%s: detect abort needed!\n",
4379 __func__);
4380 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4381 }
4382 qla4xxx_mailbox_premature_completion(ha);
4383 qla4xxx_wake_dpc(ha);
4384 }
4385
4386 /**
4387 * qla4_8xxx_watchdog - Poll dev state
4388 * @ha: Pointer to host adapter structure.
4389 *
4390 * Context: Interrupt
4391 **/
4392 void qla4_8xxx_watchdog(struct scsi_qla_host *ha)
4393 {
4394 uint32_t dev_state;
4395 uint32_t idc_ctrl;
4396
4397 if (is_qla8032(ha) &&
4398 (qla4_83xx_is_detached(ha) == QLA_SUCCESS))
4399 WARN_ONCE(1, "%s: iSCSI function %d marked invisible\n",
4400 __func__, ha->func_num);
4401
4402 /* don't poll if reset is going on */
4403 if (!(test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) ||
4404 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
4405 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags))) {
4406 dev_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE);
4407
4408 if (qla4_8xxx_check_temp(ha)) {
4409 if (is_qla8022(ha)) {
4410 ql4_printk(KERN_INFO, ha, "disabling pause transmit on port 0 & 1.\n");
4411 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
4412 CRB_NIU_XG_PAUSE_CTL_P0 |
4413 CRB_NIU_XG_PAUSE_CTL_P1);
4414 }
4415 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags);
4416 qla4xxx_wake_dpc(ha);
4417 } else if (dev_state == QLA8XXX_DEV_NEED_RESET &&
4418 !test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
4419
4420 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED RESET!\n",
4421 __func__);
4422
4423 if (is_qla8032(ha) || is_qla8042(ha)) {
4424 idc_ctrl = qla4_83xx_rd_reg(ha,
4425 QLA83XX_IDC_DRV_CTRL);
4426 if (!(idc_ctrl & GRACEFUL_RESET_BIT1)) {
4427 ql4_printk(KERN_INFO, ha, "%s: Graceful reset bit is not set\n",
4428 __func__);
4429 qla4xxx_mailbox_premature_completion(
4430 ha);
4431 }
4432 }
4433
4434 if ((is_qla8032(ha) || is_qla8042(ha)) ||
4435 (is_qla8022(ha) && !ql4xdontresethba)) {
4436 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4437 qla4xxx_wake_dpc(ha);
4438 }
4439 } else if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT &&
4440 !test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) {
4441 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED QUIES!\n",
4442 __func__);
4443 set_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags);
4444 qla4xxx_wake_dpc(ha);
4445 } else {
4446 /* Check firmware health */
4447 if (qla4_8xxx_check_fw_alive(ha))
4448 qla4_8xxx_process_fw_error(ha);
4449 }
4450 }
4451 }
4452
4453 static void qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)
4454 {
4455 struct iscsi_session *sess;
4456 struct ddb_entry *ddb_entry;
4457 struct scsi_qla_host *ha;
4458
4459 sess = cls_sess->dd_data;
4460 ddb_entry = sess->dd_data;
4461 ha = ddb_entry->ha;
4462
4463 if (!(ddb_entry->ddb_type == FLASH_DDB))
4464 return;
4465
4466 if (adapter_up(ha) && !test_bit(DF_RELOGIN, &ddb_entry->flags) &&
4467 !iscsi_is_session_online(cls_sess)) {
4468 if (atomic_read(&ddb_entry->retry_relogin_timer) !=
4469 INVALID_ENTRY) {
4470 if (atomic_read(&ddb_entry->retry_relogin_timer) ==
4471 0) {
4472 atomic_set(&ddb_entry->retry_relogin_timer,
4473 INVALID_ENTRY);
4474 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
4475 set_bit(DF_RELOGIN, &ddb_entry->flags);
4476 DEBUG2(ql4_printk(KERN_INFO, ha,
4477 "%s: index [%d] login device\n",
4478 __func__, ddb_entry->fw_ddb_index));
4479 } else
4480 atomic_dec(&ddb_entry->retry_relogin_timer);
4481 }
4482 }
4483
4484 /* Wait for relogin to timeout */
4485 if (atomic_read(&ddb_entry->relogin_timer) &&
4486 (atomic_dec_and_test(&ddb_entry->relogin_timer) != 0)) {
4487 /*
4488 * If the relogin times out and the device is
4489 * still NOT ONLINE then try and relogin again.
4490 */
4491 if (!iscsi_is_session_online(cls_sess)) {
4492 /* Reset retry relogin timer */
4493 atomic_inc(&ddb_entry->relogin_retry_count);
4494 DEBUG2(ql4_printk(KERN_INFO, ha,
4495 "%s: index[%d] relogin timed out-retrying"
4496 " relogin (%d), retry (%d)\n", __func__,
4497 ddb_entry->fw_ddb_index,
4498 atomic_read(&ddb_entry->relogin_retry_count),
4499 ddb_entry->default_time2wait + 4));
4500 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
4501 atomic_set(&ddb_entry->retry_relogin_timer,
4502 ddb_entry->default_time2wait + 4);
4503 }
4504 }
4505 }
4506
4507 /**
4508 * qla4xxx_timer - checks every second for work to do.
4509 * @ha: Pointer to host adapter structure.
4510 **/
4511 static void qla4xxx_timer(struct scsi_qla_host *ha)
4512 {
4513 int start_dpc = 0;
4514 uint16_t w;
4515
4516 iscsi_host_for_each_session(ha->host, qla4xxx_check_relogin_flash_ddb);
4517
4518 /* If we are in the middle of AER/EEH processing
4519 * skip any processing and reschedule the timer
4520 */
4521 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
4522 mod_timer(&ha->timer, jiffies + HZ);
4523 return;
4524 }
4525
4526 /* Hardware read to trigger an EEH error during mailbox waits. */
4527 if (!pci_channel_offline(ha->pdev))
4528 pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
4529
4530 if (is_qla80XX(ha))
4531 qla4_8xxx_watchdog(ha);
4532
4533 if (is_qla40XX(ha)) {
4534 /* Check for heartbeat interval. */
4535 if (ha->firmware_options & FWOPT_HEARTBEAT_ENABLE &&
4536 ha->heartbeat_interval != 0) {
4537 ha->seconds_since_last_heartbeat++;
4538 if (ha->seconds_since_last_heartbeat >
4539 ha->heartbeat_interval + 2)
4540 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4541 }
4542 }
4543
4544 /* Process any deferred work. */
4545 if (!list_empty(&ha->work_list))
4546 start_dpc++;
4547
4548 /* Wakeup the dpc routine for this adapter, if needed. */
4549 if (start_dpc ||
4550 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
4551 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags) ||
4552 test_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags) ||
4553 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) ||
4554 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
4555 test_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags) ||
4556 test_bit(DPC_LINK_CHANGED, &ha->dpc_flags) ||
4557 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) ||
4558 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) ||
4559 test_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags) ||
4560 test_bit(DPC_AEN, &ha->dpc_flags)) {
4561 DEBUG2(printk("scsi%ld: %s: scheduling dpc routine"
4562 " - dpc flags = 0x%lx\n",
4563 ha->host_no, __func__, ha->dpc_flags));
4564 qla4xxx_wake_dpc(ha);
4565 }
4566
4567 /* Reschedule timer thread to call us back in one second */
4568 mod_timer(&ha->timer, jiffies + HZ);
4569
4570 DEBUG2(ha->seconds_since_last_intr++);
4571 }
4572
4573 /**
4574 * qla4xxx_cmd_wait - waits for all outstanding commands to complete
4575 * @ha: Pointer to host adapter structure.
4576 *
4577 * This routine stalls the driver until all outstanding commands are returned.
4578 * Caller must release the Hardware Lock prior to calling this routine.
4579 **/
4580 static int qla4xxx_cmd_wait(struct scsi_qla_host *ha)
4581 {
4582 uint32_t index = 0;
4583 unsigned long flags;
4584 struct scsi_cmnd *cmd;
4585 unsigned long wtime;
4586 uint32_t wtmo;
4587
4588 if (is_qla40XX(ha))
4589 wtmo = WAIT_CMD_TOV;
4590 else
4591 wtmo = ha->nx_reset_timeout / 2;
4592
4593 wtime = jiffies + (wtmo * HZ);
4594
4595 DEBUG2(ql4_printk(KERN_INFO, ha,
4596 "Wait up to %u seconds for cmds to complete\n",
4597 wtmo));
4598
4599 while (!time_after_eq(jiffies, wtime)) {
4600 spin_lock_irqsave(&ha->hardware_lock, flags);
4601 /* Find a command that hasn't completed. */
4602 for (index = 0; index < ha->host->can_queue; index++) {
4603 cmd = scsi_host_find_tag(ha->host, index);
4604 /*
4605 * We cannot just check if the index is valid,
4606 * becase if we are run from the scsi eh, then
4607 * the scsi/block layer is going to prevent
4608 * the tag from being released.
4609 */
4610 if (cmd != NULL && CMD_SP(cmd))
4611 break;
4612 }
4613 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4614
4615 /* If No Commands are pending, wait is complete */
4616 if (index == ha->host->can_queue)
4617 return QLA_SUCCESS;
4618
4619 msleep(1000);
4620 }
4621 /* If we timed out on waiting for commands to come back
4622 * return ERROR. */
4623 return QLA_ERROR;
4624 }
4625
4626 int qla4xxx_hw_reset(struct scsi_qla_host *ha)
4627 {
4628 uint32_t ctrl_status;
4629 unsigned long flags = 0;
4630
4631 DEBUG2(printk(KERN_ERR "scsi%ld: %s\n", ha->host_no, __func__));
4632
4633 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS)
4634 return QLA_ERROR;
4635
4636 spin_lock_irqsave(&ha->hardware_lock, flags);
4637
4638 /*
4639 * If the SCSI Reset Interrupt bit is set, clear it.
4640 * Otherwise, the Soft Reset won't work.
4641 */
4642 ctrl_status = readw(&ha->reg->ctrl_status);
4643 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0)
4644 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status);
4645
4646 /* Issue Soft Reset */
4647 writel(set_rmask(CSR_SOFT_RESET), &ha->reg->ctrl_status);
4648 readl(&ha->reg->ctrl_status);
4649
4650 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4651 return QLA_SUCCESS;
4652 }
4653
4654 /**
4655 * qla4xxx_soft_reset - performs soft reset.
4656 * @ha: Pointer to host adapter structure.
4657 **/
4658 int qla4xxx_soft_reset(struct scsi_qla_host *ha)
4659 {
4660 uint32_t max_wait_time;
4661 unsigned long flags = 0;
4662 int status;
4663 uint32_t ctrl_status;
4664
4665 status = qla4xxx_hw_reset(ha);
4666 if (status != QLA_SUCCESS)
4667 return status;
4668
4669 status = QLA_ERROR;
4670 /* Wait until the Network Reset Intr bit is cleared */
4671 max_wait_time = RESET_INTR_TOV;
4672 do {
4673 spin_lock_irqsave(&ha->hardware_lock, flags);
4674 ctrl_status = readw(&ha->reg->ctrl_status);
4675 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4676
4677 if ((ctrl_status & CSR_NET_RESET_INTR) == 0)
4678 break;
4679
4680 msleep(1000);
4681 } while ((--max_wait_time));
4682
4683 if ((ctrl_status & CSR_NET_RESET_INTR) != 0) {
4684 DEBUG2(printk(KERN_WARNING
4685 "scsi%ld: Network Reset Intr not cleared by "
4686 "Network function, clearing it now!\n",
4687 ha->host_no));
4688 spin_lock_irqsave(&ha->hardware_lock, flags);
4689 writel(set_rmask(CSR_NET_RESET_INTR), &ha->reg->ctrl_status);
4690 readl(&ha->reg->ctrl_status);
4691 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4692 }
4693
4694 /* Wait until the firmware tells us the Soft Reset is done */
4695 max_wait_time = SOFT_RESET_TOV;
4696 do {
4697 spin_lock_irqsave(&ha->hardware_lock, flags);
4698 ctrl_status = readw(&ha->reg->ctrl_status);
4699 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4700
4701 if ((ctrl_status & CSR_SOFT_RESET) == 0) {
4702 status = QLA_SUCCESS;
4703 break;
4704 }
4705
4706 msleep(1000);
4707 } while ((--max_wait_time));
4708
4709 /*
4710 * Also, make sure that the SCSI Reset Interrupt bit has been cleared
4711 * after the soft reset has taken place.
4712 */
4713 spin_lock_irqsave(&ha->hardware_lock, flags);
4714 ctrl_status = readw(&ha->reg->ctrl_status);
4715 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) {
4716 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status);
4717 readl(&ha->reg->ctrl_status);
4718 }
4719 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4720
4721 /* If soft reset fails then most probably the bios on other
4722 * function is also enabled.
4723 * Since the initialization is sequential the other fn
4724 * wont be able to acknowledge the soft reset.
4725 * Issue a force soft reset to workaround this scenario.
4726 */
4727 if (max_wait_time == 0) {
4728 /* Issue Force Soft Reset */
4729 spin_lock_irqsave(&ha->hardware_lock, flags);
4730 writel(set_rmask(CSR_FORCE_SOFT_RESET), &ha->reg->ctrl_status);
4731 readl(&ha->reg->ctrl_status);
4732 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4733 /* Wait until the firmware tells us the Soft Reset is done */
4734 max_wait_time = SOFT_RESET_TOV;
4735 do {
4736 spin_lock_irqsave(&ha->hardware_lock, flags);
4737 ctrl_status = readw(&ha->reg->ctrl_status);
4738 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4739
4740 if ((ctrl_status & CSR_FORCE_SOFT_RESET) == 0) {
4741 status = QLA_SUCCESS;
4742 break;
4743 }
4744
4745 msleep(1000);
4746 } while ((--max_wait_time));
4747 }
4748
4749 return status;
4750 }
4751
4752 /**
4753 * qla4xxx_abort_active_cmds - returns all outstanding i/o requests to O.S.
4754 * @ha: Pointer to host adapter structure.
4755 * @res: returned scsi status
4756 *
4757 * This routine is called just prior to a HARD RESET to return all
4758 * outstanding commands back to the Operating System.
4759 * Caller should make sure that the following locks are released
4760 * before this calling routine: Hardware lock, and io_request_lock.
4761 **/
4762 static void qla4xxx_abort_active_cmds(struct scsi_qla_host *ha, int res)
4763 {
4764 struct srb *srb;
4765 int i;
4766 unsigned long flags;
4767
4768 spin_lock_irqsave(&ha->hardware_lock, flags);
4769 for (i = 0; i < ha->host->can_queue; i++) {
4770 srb = qla4xxx_del_from_active_array(ha, i);
4771 if (srb != NULL) {
4772 srb->cmd->result = res;
4773 kref_put(&srb->srb_ref, qla4xxx_srb_compl);
4774 }
4775 }
4776 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4777 }
4778
4779 void qla4xxx_dead_adapter_cleanup(struct scsi_qla_host *ha)
4780 {
4781 clear_bit(AF_ONLINE, &ha->flags);
4782
4783 /* Disable the board */
4784 ql4_printk(KERN_INFO, ha, "Disabling the board\n");
4785
4786 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
4787 qla4xxx_mark_all_devices_missing(ha);
4788 clear_bit(AF_INIT_DONE, &ha->flags);
4789 }
4790
4791 static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session)
4792 {
4793 struct iscsi_session *sess;
4794 struct ddb_entry *ddb_entry;
4795
4796 sess = cls_session->dd_data;
4797 ddb_entry = sess->dd_data;
4798 ddb_entry->fw_ddb_device_state = DDB_DS_SESSION_FAILED;
4799
4800 if (ddb_entry->ddb_type == FLASH_DDB)
4801 iscsi_block_session(ddb_entry->sess);
4802 else
4803 iscsi_session_failure(cls_session->dd_data,
4804 ISCSI_ERR_CONN_FAILED);
4805 }
4806
4807 /**
4808 * qla4xxx_recover_adapter - recovers adapter after a fatal error
4809 * @ha: Pointer to host adapter structure.
4810 **/
4811 static int qla4xxx_recover_adapter(struct scsi_qla_host *ha)
4812 {
4813 int status = QLA_ERROR;
4814 uint8_t reset_chip = 0;
4815 uint32_t dev_state;
4816 unsigned long wait;
4817
4818 /* Stall incoming I/O until we are done */
4819 scsi_block_requests(ha->host);
4820 clear_bit(AF_ONLINE, &ha->flags);
4821 clear_bit(AF_LINK_UP, &ha->flags);
4822
4823 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: adapter OFFLINE\n", __func__));
4824
4825 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
4826
4827 if ((is_qla8032(ha) || is_qla8042(ha)) &&
4828 !test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) {
4829 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
4830 __func__);
4831 /* disable pause frame for ISP83xx */
4832 qla4_83xx_disable_pause(ha);
4833 }
4834
4835 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session);
4836
4837 if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
4838 reset_chip = 1;
4839
4840 /* For the DPC_RESET_HA_INTR case (ISP-4xxx specific)
4841 * do not reset adapter, jump to initialize_adapter */
4842 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
4843 status = QLA_SUCCESS;
4844 goto recover_ha_init_adapter;
4845 }
4846
4847 /* For the ISP-8xxx adapter, issue a stop_firmware if invoked
4848 * from eh_host_reset or ioctl module */
4849 if (is_qla80XX(ha) && !reset_chip &&
4850 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) {
4851
4852 DEBUG2(ql4_printk(KERN_INFO, ha,
4853 "scsi%ld: %s - Performing stop_firmware...\n",
4854 ha->host_no, __func__));
4855 status = ha->isp_ops->reset_firmware(ha);
4856 if (status == QLA_SUCCESS) {
4857 ha->isp_ops->disable_intrs(ha);
4858 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
4859 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
4860 } else {
4861 /* If the stop_firmware fails then
4862 * reset the entire chip */
4863 reset_chip = 1;
4864 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
4865 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4866 }
4867 }
4868
4869 /* Issue full chip reset if recovering from a catastrophic error,
4870 * or if stop_firmware fails for ISP-8xxx.
4871 * This is the default case for ISP-4xxx */
4872 if (is_qla40XX(ha) || reset_chip) {
4873 if (is_qla40XX(ha))
4874 goto chip_reset;
4875
4876 /* Check if 8XXX firmware is alive or not
4877 * We may have arrived here from NEED_RESET
4878 * detection only */
4879 if (test_bit(AF_FW_RECOVERY, &ha->flags))
4880 goto chip_reset;
4881
4882 wait = jiffies + (FW_ALIVE_WAIT_TOV * HZ);
4883 while (time_before(jiffies, wait)) {
4884 if (qla4_8xxx_check_fw_alive(ha)) {
4885 qla4xxx_mailbox_premature_completion(ha);
4886 break;
4887 }
4888
4889 set_current_state(TASK_UNINTERRUPTIBLE);
4890 schedule_timeout(HZ);
4891 }
4892 chip_reset:
4893 if (!test_bit(AF_FW_RECOVERY, &ha->flags))
4894 qla4xxx_cmd_wait(ha);
4895
4896 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
4897 DEBUG2(ql4_printk(KERN_INFO, ha,
4898 "scsi%ld: %s - Performing chip reset..\n",
4899 ha->host_no, __func__));
4900 status = ha->isp_ops->reset_chip(ha);
4901 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
4902 }
4903
4904 /* Flush any pending ddb changed AENs */
4905 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
4906
4907 recover_ha_init_adapter:
4908 /* Upon successful firmware/chip reset, re-initialize the adapter */
4909 if (status == QLA_SUCCESS) {
4910 /* For ISP-4xxx, force function 1 to always initialize
4911 * before function 3 to prevent both funcions from
4912 * stepping on top of the other */
4913 if (is_qla40XX(ha) && (ha->mac_index == 3))
4914 ssleep(6);
4915
4916 /* NOTE: AF_ONLINE flag set upon successful completion of
4917 * qla4xxx_initialize_adapter */
4918 status = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
4919 if (is_qla80XX(ha) && (status == QLA_ERROR)) {
4920 status = qla4_8xxx_check_init_adapter_retry(ha);
4921 if (status == QLA_ERROR) {
4922 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Don't retry recover adapter\n",
4923 ha->host_no, __func__);
4924 qla4xxx_dead_adapter_cleanup(ha);
4925 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
4926 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
4927 clear_bit(DPC_RESET_HA_FW_CONTEXT,
4928 &ha->dpc_flags);
4929 goto exit_recover;
4930 }
4931 }
4932 }
4933
4934 /* Retry failed adapter initialization, if necessary
4935 * Do not retry initialize_adapter for RESET_HA_INTR (ISP-4xxx specific)
4936 * case to prevent ping-pong resets between functions */
4937 if (!test_bit(AF_ONLINE, &ha->flags) &&
4938 !test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
4939 /* Adapter initialization failed, see if we can retry
4940 * resetting the ha.
4941 * Since we don't want to block the DPC for too long
4942 * with multiple resets in the same thread,
4943 * utilize DPC to retry */
4944 if (is_qla80XX(ha)) {
4945 ha->isp_ops->idc_lock(ha);
4946 dev_state = qla4_8xxx_rd_direct(ha,
4947 QLA8XXX_CRB_DEV_STATE);
4948 ha->isp_ops->idc_unlock(ha);
4949 if (dev_state == QLA8XXX_DEV_FAILED) {
4950 ql4_printk(KERN_INFO, ha, "%s: don't retry "
4951 "recover adapter. H/W is in Failed "
4952 "state\n", __func__);
4953 qla4xxx_dead_adapter_cleanup(ha);
4954 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
4955 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
4956 clear_bit(DPC_RESET_HA_FW_CONTEXT,
4957 &ha->dpc_flags);
4958 status = QLA_ERROR;
4959
4960 goto exit_recover;
4961 }
4962 }
4963
4964 if (!test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags)) {
4965 ha->retry_reset_ha_cnt = MAX_RESET_HA_RETRIES;
4966 DEBUG2(printk("scsi%ld: recover adapter - retrying "
4967 "(%d) more times\n", ha->host_no,
4968 ha->retry_reset_ha_cnt));
4969 set_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
4970 status = QLA_ERROR;
4971 } else {
4972 if (ha->retry_reset_ha_cnt > 0) {
4973 /* Schedule another Reset HA--DPC will retry */
4974 ha->retry_reset_ha_cnt--;
4975 DEBUG2(printk("scsi%ld: recover adapter - "
4976 "retry remaining %d\n",
4977 ha->host_no,
4978 ha->retry_reset_ha_cnt));
4979 status = QLA_ERROR;
4980 }
4981
4982 if (ha->retry_reset_ha_cnt == 0) {
4983 /* Recover adapter retries have been exhausted.
4984 * Adapter DEAD */
4985 DEBUG2(printk("scsi%ld: recover adapter "
4986 "failed - board disabled\n",
4987 ha->host_no));
4988 qla4xxx_dead_adapter_cleanup(ha);
4989 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
4990 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
4991 clear_bit(DPC_RESET_HA_FW_CONTEXT,
4992 &ha->dpc_flags);
4993 status = QLA_ERROR;
4994 }
4995 }
4996 } else {
4997 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
4998 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
4999 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
5000 }
5001
5002 exit_recover:
5003 ha->adapter_error_count++;
5004
5005 if (test_bit(AF_ONLINE, &ha->flags))
5006 ha->isp_ops->enable_intrs(ha);
5007
5008 scsi_unblock_requests(ha->host);
5009
5010 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
5011 DEBUG2(printk("scsi%ld: recover adapter: %s\n", ha->host_no,
5012 status == QLA_ERROR ? "FAILED" : "SUCCEEDED"));
5013
5014 return status;
5015 }
5016
5017 static void qla4xxx_relogin_devices(struct iscsi_cls_session *cls_session)
5018 {
5019 struct iscsi_session *sess;
5020 struct ddb_entry *ddb_entry;
5021 struct scsi_qla_host *ha;
5022
5023 sess = cls_session->dd_data;
5024 ddb_entry = sess->dd_data;
5025 ha = ddb_entry->ha;
5026 if (!iscsi_is_session_online(cls_session)) {
5027 if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) {
5028 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5029 " unblock session\n", ha->host_no, __func__,
5030 ddb_entry->fw_ddb_index);
5031 iscsi_unblock_session(ddb_entry->sess);
5032 } else {
5033 /* Trigger relogin */
5034 if (ddb_entry->ddb_type == FLASH_DDB) {
5035 if (!(test_bit(DF_RELOGIN, &ddb_entry->flags) ||
5036 test_bit(DF_DISABLE_RELOGIN,
5037 &ddb_entry->flags)))
5038 qla4xxx_arm_relogin_timer(ddb_entry);
5039 } else
5040 iscsi_session_failure(cls_session->dd_data,
5041 ISCSI_ERR_CONN_FAILED);
5042 }
5043 }
5044 }
5045
5046 int qla4xxx_unblock_flash_ddb(struct iscsi_cls_session *cls_session)
5047 {
5048 struct iscsi_session *sess;
5049 struct ddb_entry *ddb_entry;
5050 struct scsi_qla_host *ha;
5051
5052 sess = cls_session->dd_data;
5053 ddb_entry = sess->dd_data;
5054 ha = ddb_entry->ha;
5055 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5056 " unblock session\n", ha->host_no, __func__,
5057 ddb_entry->fw_ddb_index);
5058
5059 iscsi_unblock_session(ddb_entry->sess);
5060
5061 /* Start scan target */
5062 if (test_bit(AF_ONLINE, &ha->flags)) {
5063 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5064 " start scan\n", ha->host_no, __func__,
5065 ddb_entry->fw_ddb_index);
5066 scsi_queue_work(ha->host, &ddb_entry->sess->scan_work);
5067 }
5068 return QLA_SUCCESS;
5069 }
5070
5071 int qla4xxx_unblock_ddb(struct iscsi_cls_session *cls_session)
5072 {
5073 struct iscsi_session *sess;
5074 struct ddb_entry *ddb_entry;
5075 struct scsi_qla_host *ha;
5076 int status = QLA_SUCCESS;
5077
5078 sess = cls_session->dd_data;
5079 ddb_entry = sess->dd_data;
5080 ha = ddb_entry->ha;
5081 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5082 " unblock user space session\n", ha->host_no, __func__,
5083 ddb_entry->fw_ddb_index);
5084
5085 if (!iscsi_is_session_online(cls_session)) {
5086 iscsi_conn_start(ddb_entry->conn);
5087 iscsi_conn_login_event(ddb_entry->conn,
5088 ISCSI_CONN_STATE_LOGGED_IN);
5089 } else {
5090 ql4_printk(KERN_INFO, ha,
5091 "scsi%ld: %s: ddb[%d] session [%d] already logged in\n",
5092 ha->host_no, __func__, ddb_entry->fw_ddb_index,
5093 cls_session->sid);
5094 status = QLA_ERROR;
5095 }
5096
5097 return status;
5098 }
5099
5100 static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha)
5101 {
5102 iscsi_host_for_each_session(ha->host, qla4xxx_relogin_devices);
5103 }
5104
5105 static void qla4xxx_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)
5106 {
5107 uint16_t relogin_timer;
5108 struct iscsi_session *sess;
5109 struct ddb_entry *ddb_entry;
5110 struct scsi_qla_host *ha;
5111
5112 sess = cls_sess->dd_data;
5113 ddb_entry = sess->dd_data;
5114 ha = ddb_entry->ha;
5115
5116 relogin_timer = max(ddb_entry->default_relogin_timeout,
5117 (uint16_t)RELOGIN_TOV);
5118 atomic_set(&ddb_entry->relogin_timer, relogin_timer);
5119
5120 DEBUG2(ql4_printk(KERN_INFO, ha,
5121 "scsi%ld: Relogin index [%d]. TOV=%d\n", ha->host_no,
5122 ddb_entry->fw_ddb_index, relogin_timer));
5123
5124 qla4xxx_login_flash_ddb(cls_sess);
5125 }
5126
5127 static void qla4xxx_dpc_relogin(struct iscsi_cls_session *cls_sess)
5128 {
5129 struct iscsi_session *sess;
5130 struct ddb_entry *ddb_entry;
5131 struct scsi_qla_host *ha;
5132
5133 sess = cls_sess->dd_data;
5134 ddb_entry = sess->dd_data;
5135 ha = ddb_entry->ha;
5136
5137 if (!(ddb_entry->ddb_type == FLASH_DDB))
5138 return;
5139
5140 if (test_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags))
5141 return;
5142
5143 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags) &&
5144 !iscsi_is_session_online(cls_sess)) {
5145 DEBUG2(ql4_printk(KERN_INFO, ha,
5146 "relogin issued\n"));
5147 qla4xxx_relogin_flash_ddb(cls_sess);
5148 }
5149 }
5150
5151 void qla4xxx_wake_dpc(struct scsi_qla_host *ha)
5152 {
5153 if (ha->dpc_thread)
5154 queue_work(ha->dpc_thread, &ha->dpc_work);
5155 }
5156
5157 static struct qla4_work_evt *
5158 qla4xxx_alloc_work(struct scsi_qla_host *ha, uint32_t data_size,
5159 enum qla4_work_type type)
5160 {
5161 struct qla4_work_evt *e;
5162 uint32_t size = sizeof(struct qla4_work_evt) + data_size;
5163
5164 e = kzalloc(size, GFP_ATOMIC);
5165 if (!e)
5166 return NULL;
5167
5168 INIT_LIST_HEAD(&e->list);
5169 e->type = type;
5170 return e;
5171 }
5172
5173 static void qla4xxx_post_work(struct scsi_qla_host *ha,
5174 struct qla4_work_evt *e)
5175 {
5176 unsigned long flags;
5177
5178 spin_lock_irqsave(&ha->work_lock, flags);
5179 list_add_tail(&e->list, &ha->work_list);
5180 spin_unlock_irqrestore(&ha->work_lock, flags);
5181 qla4xxx_wake_dpc(ha);
5182 }
5183
5184 int qla4xxx_post_aen_work(struct scsi_qla_host *ha,
5185 enum iscsi_host_event_code aen_code,
5186 uint32_t data_size, uint8_t *data)
5187 {
5188 struct qla4_work_evt *e;
5189
5190 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_AEN);
5191 if (!e)
5192 return QLA_ERROR;
5193
5194 e->u.aen.code = aen_code;
5195 e->u.aen.data_size = data_size;
5196 memcpy(e->u.aen.data, data, data_size);
5197
5198 qla4xxx_post_work(ha, e);
5199
5200 return QLA_SUCCESS;
5201 }
5202
5203 int qla4xxx_post_ping_evt_work(struct scsi_qla_host *ha,
5204 uint32_t status, uint32_t pid,
5205 uint32_t data_size, uint8_t *data)
5206 {
5207 struct qla4_work_evt *e;
5208
5209 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_PING_STATUS);
5210 if (!e)
5211 return QLA_ERROR;
5212
5213 e->u.ping.status = status;
5214 e->u.ping.pid = pid;
5215 e->u.ping.data_size = data_size;
5216 memcpy(e->u.ping.data, data, data_size);
5217
5218 qla4xxx_post_work(ha, e);
5219
5220 return QLA_SUCCESS;
5221 }
5222
5223 static void qla4xxx_do_work(struct scsi_qla_host *ha)
5224 {
5225 struct qla4_work_evt *e, *tmp;
5226 unsigned long flags;
5227 LIST_HEAD(work);
5228
5229 spin_lock_irqsave(&ha->work_lock, flags);
5230 list_splice_init(&ha->work_list, &work);
5231 spin_unlock_irqrestore(&ha->work_lock, flags);
5232
5233 list_for_each_entry_safe(e, tmp, &work, list) {
5234 list_del_init(&e->list);
5235
5236 switch (e->type) {
5237 case QLA4_EVENT_AEN:
5238 iscsi_post_host_event(ha->host_no,
5239 &qla4xxx_iscsi_transport,
5240 e->u.aen.code,
5241 e->u.aen.data_size,
5242 e->u.aen.data);
5243 break;
5244 case QLA4_EVENT_PING_STATUS:
5245 iscsi_ping_comp_event(ha->host_no,
5246 &qla4xxx_iscsi_transport,
5247 e->u.ping.status,
5248 e->u.ping.pid,
5249 e->u.ping.data_size,
5250 e->u.ping.data);
5251 break;
5252 default:
5253 ql4_printk(KERN_WARNING, ha, "event type: 0x%x not "
5254 "supported", e->type);
5255 }
5256 kfree(e);
5257 }
5258 }
5259
5260 /**
5261 * qla4xxx_do_dpc - dpc routine
5262 * @data: in our case pointer to adapter structure
5263 *
5264 * This routine is a task that is schedule by the interrupt handler
5265 * to perform the background processing for interrupts. We put it
5266 * on a task queue that is consumed whenever the scheduler runs; that's
5267 * so you can do anything (i.e. put the process to sleep etc). In fact,
5268 * the mid-level tries to sleep when it reaches the driver threshold
5269 * "host->can_queue". This can cause a panic if we were in our interrupt code.
5270 **/
5271 static void qla4xxx_do_dpc(struct work_struct *work)
5272 {
5273 struct scsi_qla_host *ha =
5274 container_of(work, struct scsi_qla_host, dpc_work);
5275 int status = QLA_ERROR;
5276
5277 DEBUG2(ql4_printk(KERN_INFO, ha,
5278 "scsi%ld: %s: DPC handler waking up. flags = 0x%08lx, dpc_flags = 0x%08lx\n",
5279 ha->host_no, __func__, ha->flags, ha->dpc_flags));
5280
5281 /* Initialization not yet finished. Don't do anything yet. */
5282 if (!test_bit(AF_INIT_DONE, &ha->flags))
5283 return;
5284
5285 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
5286 DEBUG2(printk(KERN_INFO "scsi%ld: %s: flags = %lx\n",
5287 ha->host_no, __func__, ha->flags));
5288 return;
5289 }
5290
5291 /* post events to application */
5292 qla4xxx_do_work(ha);
5293
5294 if (is_qla80XX(ha)) {
5295 if (test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags)) {
5296 if (is_qla8032(ha) || is_qla8042(ha)) {
5297 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
5298 __func__);
5299 /* disable pause frame for ISP83xx */
5300 qla4_83xx_disable_pause(ha);
5301 }
5302
5303 ha->isp_ops->idc_lock(ha);
5304 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
5305 QLA8XXX_DEV_FAILED);
5306 ha->isp_ops->idc_unlock(ha);
5307 ql4_printk(KERN_INFO, ha, "HW State: FAILED\n");
5308 qla4_8xxx_device_state_handler(ha);
5309 }
5310
5311 if (test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags)) {
5312 if (is_qla8042(ha)) {
5313 if (ha->idc_info.info2 &
5314 ENABLE_INTERNAL_LOOPBACK) {
5315 ql4_printk(KERN_INFO, ha, "%s: Disabling ACB\n",
5316 __func__);
5317 status = qla4_84xx_config_acb(ha,
5318 ACB_CONFIG_DISABLE);
5319 if (status != QLA_SUCCESS) {
5320 ql4_printk(KERN_INFO, ha, "%s: ACB config failed\n",
5321 __func__);
5322 }
5323 }
5324 }
5325 qla4_83xx_post_idc_ack(ha);
5326 clear_bit(DPC_POST_IDC_ACK, &ha->dpc_flags);
5327 }
5328
5329 if (is_qla8042(ha) &&
5330 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags)) {
5331 ql4_printk(KERN_INFO, ha, "%s: Restoring ACB\n",
5332 __func__);
5333 if (qla4_84xx_config_acb(ha, ACB_CONFIG_SET) !=
5334 QLA_SUCCESS) {
5335 ql4_printk(KERN_INFO, ha, "%s: ACB config failed ",
5336 __func__);
5337 }
5338 clear_bit(DPC_RESTORE_ACB, &ha->dpc_flags);
5339 }
5340
5341 if (test_and_clear_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) {
5342 qla4_8xxx_need_qsnt_handler(ha);
5343 }
5344 }
5345
5346 if (!test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) &&
5347 (test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
5348 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
5349 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))) {
5350 if ((is_qla8022(ha) && ql4xdontresethba) ||
5351 ((is_qla8032(ha) || is_qla8042(ha)) &&
5352 qla4_83xx_idc_dontreset(ha))) {
5353 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n",
5354 ha->host_no, __func__));
5355 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
5356 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags);
5357 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
5358 goto dpc_post_reset_ha;
5359 }
5360 if (test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) ||
5361 test_bit(DPC_RESET_HA, &ha->dpc_flags))
5362 qla4xxx_recover_adapter(ha);
5363
5364 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
5365 uint8_t wait_time = RESET_INTR_TOV;
5366
5367 while ((readw(&ha->reg->ctrl_status) &
5368 (CSR_SOFT_RESET | CSR_FORCE_SOFT_RESET)) != 0) {
5369 if (--wait_time == 0)
5370 break;
5371 msleep(1000);
5372 }
5373 if (wait_time == 0)
5374 DEBUG2(printk("scsi%ld: %s: SR|FSR "
5375 "bit not cleared-- resetting\n",
5376 ha->host_no, __func__));
5377 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
5378 if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS) {
5379 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
5380 status = qla4xxx_recover_adapter(ha);
5381 }
5382 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags);
5383 if (status == QLA_SUCCESS)
5384 ha->isp_ops->enable_intrs(ha);
5385 }
5386 }
5387
5388 dpc_post_reset_ha:
5389 /* ---- process AEN? --- */
5390 if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags))
5391 qla4xxx_process_aen(ha, PROCESS_ALL_AENS);
5392
5393 /* ---- Get DHCP IP Address? --- */
5394 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags))
5395 qla4xxx_get_dhcp_ip_address(ha);
5396
5397 /* ---- relogin device? --- */
5398 if (adapter_up(ha) &&
5399 test_and_clear_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags)) {
5400 iscsi_host_for_each_session(ha->host, qla4xxx_dpc_relogin);
5401 }
5402
5403 /* ---- link change? --- */
5404 if (!test_bit(AF_LOOPBACK, &ha->flags) &&
5405 test_and_clear_bit(DPC_LINK_CHANGED, &ha->dpc_flags)) {
5406 if (!test_bit(AF_LINK_UP, &ha->flags)) {
5407 /* ---- link down? --- */
5408 qla4xxx_mark_all_devices_missing(ha);
5409 } else {
5410 /* ---- link up? --- *
5411 * F/W will auto login to all devices ONLY ONCE after
5412 * link up during driver initialization and runtime
5413 * fatal error recovery. Therefore, the driver must
5414 * manually relogin to devices when recovering from
5415 * connection failures, logouts, expired KATO, etc. */
5416 if (test_and_clear_bit(AF_BUILD_DDB_LIST, &ha->flags)) {
5417 qla4xxx_build_ddb_list(ha, ha->is_reset);
5418 iscsi_host_for_each_session(ha->host,
5419 qla4xxx_login_flash_ddb);
5420 } else
5421 qla4xxx_relogin_all_devices(ha);
5422 }
5423 }
5424 if (test_and_clear_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags)) {
5425 if (qla4xxx_sysfs_ddb_export(ha))
5426 ql4_printk(KERN_ERR, ha, "%s: Error exporting ddb to sysfs\n",
5427 __func__);
5428 }
5429 }
5430
5431 /**
5432 * qla4xxx_free_adapter - release the adapter
5433 * @ha: pointer to adapter structure
5434 **/
5435 static void qla4xxx_free_adapter(struct scsi_qla_host *ha)
5436 {
5437 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
5438
5439 /* Turn-off interrupts on the card. */
5440 ha->isp_ops->disable_intrs(ha);
5441
5442 if (is_qla40XX(ha)) {
5443 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR),
5444 &ha->reg->ctrl_status);
5445 readl(&ha->reg->ctrl_status);
5446 } else if (is_qla8022(ha)) {
5447 writel(0, &ha->qla4_82xx_reg->host_int);
5448 readl(&ha->qla4_82xx_reg->host_int);
5449 } else if (is_qla8032(ha) || is_qla8042(ha)) {
5450 writel(0, &ha->qla4_83xx_reg->risc_intr);
5451 readl(&ha->qla4_83xx_reg->risc_intr);
5452 }
5453
5454 /* Remove timer thread, if present */
5455 if (ha->timer_active)
5456 qla4xxx_stop_timer(ha);
5457
5458 /* Kill the kernel thread for this host */
5459 if (ha->dpc_thread)
5460 destroy_workqueue(ha->dpc_thread);
5461
5462 /* Kill the kernel thread for this host */
5463 if (ha->task_wq)
5464 destroy_workqueue(ha->task_wq);
5465
5466 /* Put firmware in known state */
5467 ha->isp_ops->reset_firmware(ha);
5468
5469 if (is_qla80XX(ha)) {
5470 ha->isp_ops->idc_lock(ha);
5471 qla4_8xxx_clear_drv_active(ha);
5472 ha->isp_ops->idc_unlock(ha);
5473 }
5474
5475 /* Detach interrupts */
5476 qla4xxx_free_irqs(ha);
5477
5478 /* free extra memory */
5479 qla4xxx_mem_free(ha);
5480 }
5481
5482 int qla4_8xxx_iospace_config(struct scsi_qla_host *ha)
5483 {
5484 int status = 0;
5485 unsigned long mem_base, mem_len, db_base, db_len;
5486 struct pci_dev *pdev = ha->pdev;
5487
5488 status = pci_request_regions(pdev, DRIVER_NAME);
5489 if (status) {
5490 printk(KERN_WARNING
5491 "scsi(%ld) Failed to reserve PIO regions (%s) "
5492 "status=%d\n", ha->host_no, pci_name(pdev), status);
5493 goto iospace_error_exit;
5494 }
5495
5496 DEBUG2(printk(KERN_INFO "%s: revision-id=%d\n",
5497 __func__, pdev->revision));
5498 ha->revision_id = pdev->revision;
5499
5500 /* remap phys address */
5501 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
5502 mem_len = pci_resource_len(pdev, 0);
5503 DEBUG2(printk(KERN_INFO "%s: ioremap from %lx a size of %lx\n",
5504 __func__, mem_base, mem_len));
5505
5506 /* mapping of pcibase pointer */
5507 ha->nx_pcibase = (unsigned long)ioremap(mem_base, mem_len);
5508 if (!ha->nx_pcibase) {
5509 printk(KERN_ERR
5510 "cannot remap MMIO (%s), aborting\n", pci_name(pdev));
5511 pci_release_regions(ha->pdev);
5512 goto iospace_error_exit;
5513 }
5514
5515 /* Mapping of IO base pointer, door bell read and write pointer */
5516
5517 /* mapping of IO base pointer */
5518 if (is_qla8022(ha)) {
5519 ha->qla4_82xx_reg = (struct device_reg_82xx __iomem *)
5520 ((uint8_t *)ha->nx_pcibase + 0xbc000 +
5521 (ha->pdev->devfn << 11));
5522 ha->nx_db_wr_ptr = (ha->pdev->devfn == 4 ? QLA82XX_CAM_RAM_DB1 :
5523 QLA82XX_CAM_RAM_DB2);
5524 } else if (is_qla8032(ha) || is_qla8042(ha)) {
5525 ha->qla4_83xx_reg = (struct device_reg_83xx __iomem *)
5526 ((uint8_t *)ha->nx_pcibase);
5527 }
5528
5529 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
5530 db_len = pci_resource_len(pdev, 4);
5531
5532 return 0;
5533 iospace_error_exit:
5534 return -ENOMEM;
5535 }
5536
5537 /***
5538 * qla4xxx_iospace_config - maps registers
5539 * @ha: pointer to adapter structure
5540 *
5541 * This routines maps HBA's registers from the pci address space
5542 * into the kernel virtual address space for memory mapped i/o.
5543 **/
5544 int qla4xxx_iospace_config(struct scsi_qla_host *ha)
5545 {
5546 unsigned long pio, pio_len, pio_flags;
5547 unsigned long mmio, mmio_len, mmio_flags;
5548
5549 pio = pci_resource_start(ha->pdev, 0);
5550 pio_len = pci_resource_len(ha->pdev, 0);
5551 pio_flags = pci_resource_flags(ha->pdev, 0);
5552 if (pio_flags & IORESOURCE_IO) {
5553 if (pio_len < MIN_IOBASE_LEN) {
5554 ql4_printk(KERN_WARNING, ha,
5555 "Invalid PCI I/O region size\n");
5556 pio = 0;
5557 }
5558 } else {
5559 ql4_printk(KERN_WARNING, ha, "region #0 not a PIO resource\n");
5560 pio = 0;
5561 }
5562
5563 /* Use MMIO operations for all accesses. */
5564 mmio = pci_resource_start(ha->pdev, 1);
5565 mmio_len = pci_resource_len(ha->pdev, 1);
5566 mmio_flags = pci_resource_flags(ha->pdev, 1);
5567
5568 if (!(mmio_flags & IORESOURCE_MEM)) {
5569 ql4_printk(KERN_ERR, ha,
5570 "region #0 not an MMIO resource, aborting\n");
5571
5572 goto iospace_error_exit;
5573 }
5574
5575 if (mmio_len < MIN_IOBASE_LEN) {
5576 ql4_printk(KERN_ERR, ha,
5577 "Invalid PCI mem region size, aborting\n");
5578 goto iospace_error_exit;
5579 }
5580
5581 if (pci_request_regions(ha->pdev, DRIVER_NAME)) {
5582 ql4_printk(KERN_WARNING, ha,
5583 "Failed to reserve PIO/MMIO regions\n");
5584
5585 goto iospace_error_exit;
5586 }
5587
5588 ha->pio_address = pio;
5589 ha->pio_length = pio_len;
5590 ha->reg = ioremap(mmio, MIN_IOBASE_LEN);
5591 if (!ha->reg) {
5592 ql4_printk(KERN_ERR, ha,
5593 "cannot remap MMIO, aborting\n");
5594
5595 goto iospace_error_exit;
5596 }
5597
5598 return 0;
5599
5600 iospace_error_exit:
5601 return -ENOMEM;
5602 }
5603
5604 static struct isp_operations qla4xxx_isp_ops = {
5605 .iospace_config = qla4xxx_iospace_config,
5606 .pci_config = qla4xxx_pci_config,
5607 .disable_intrs = qla4xxx_disable_intrs,
5608 .enable_intrs = qla4xxx_enable_intrs,
5609 .start_firmware = qla4xxx_start_firmware,
5610 .intr_handler = qla4xxx_intr_handler,
5611 .interrupt_service_routine = qla4xxx_interrupt_service_routine,
5612 .reset_chip = qla4xxx_soft_reset,
5613 .reset_firmware = qla4xxx_hw_reset,
5614 .queue_iocb = qla4xxx_queue_iocb,
5615 .complete_iocb = qla4xxx_complete_iocb,
5616 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out,
5617 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in,
5618 .get_sys_info = qla4xxx_get_sys_info,
5619 .queue_mailbox_command = qla4xxx_queue_mbox_cmd,
5620 .process_mailbox_interrupt = qla4xxx_process_mbox_intr,
5621 };
5622
5623 static struct isp_operations qla4_82xx_isp_ops = {
5624 .iospace_config = qla4_8xxx_iospace_config,
5625 .pci_config = qla4_8xxx_pci_config,
5626 .disable_intrs = qla4_82xx_disable_intrs,
5627 .enable_intrs = qla4_82xx_enable_intrs,
5628 .start_firmware = qla4_8xxx_load_risc,
5629 .restart_firmware = qla4_82xx_try_start_fw,
5630 .intr_handler = qla4_82xx_intr_handler,
5631 .interrupt_service_routine = qla4_82xx_interrupt_service_routine,
5632 .need_reset = qla4_8xxx_need_reset,
5633 .reset_chip = qla4_82xx_isp_reset,
5634 .reset_firmware = qla4_8xxx_stop_firmware,
5635 .queue_iocb = qla4_82xx_queue_iocb,
5636 .complete_iocb = qla4_82xx_complete_iocb,
5637 .rd_shdw_req_q_out = qla4_82xx_rd_shdw_req_q_out,
5638 .rd_shdw_rsp_q_in = qla4_82xx_rd_shdw_rsp_q_in,
5639 .get_sys_info = qla4_8xxx_get_sys_info,
5640 .rd_reg_direct = qla4_82xx_rd_32,
5641 .wr_reg_direct = qla4_82xx_wr_32,
5642 .rd_reg_indirect = qla4_82xx_md_rd_32,
5643 .wr_reg_indirect = qla4_82xx_md_wr_32,
5644 .idc_lock = qla4_82xx_idc_lock,
5645 .idc_unlock = qla4_82xx_idc_unlock,
5646 .rom_lock_recovery = qla4_82xx_rom_lock_recovery,
5647 .queue_mailbox_command = qla4_82xx_queue_mbox_cmd,
5648 .process_mailbox_interrupt = qla4_82xx_process_mbox_intr,
5649 };
5650
5651 static struct isp_operations qla4_83xx_isp_ops = {
5652 .iospace_config = qla4_8xxx_iospace_config,
5653 .pci_config = qla4_8xxx_pci_config,
5654 .disable_intrs = qla4_83xx_disable_intrs,
5655 .enable_intrs = qla4_83xx_enable_intrs,
5656 .start_firmware = qla4_8xxx_load_risc,
5657 .restart_firmware = qla4_83xx_start_firmware,
5658 .intr_handler = qla4_83xx_intr_handler,
5659 .interrupt_service_routine = qla4_83xx_interrupt_service_routine,
5660 .need_reset = qla4_8xxx_need_reset,
5661 .reset_chip = qla4_83xx_isp_reset,
5662 .reset_firmware = qla4_8xxx_stop_firmware,
5663 .queue_iocb = qla4_83xx_queue_iocb,
5664 .complete_iocb = qla4_83xx_complete_iocb,
5665 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out,
5666 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in,
5667 .get_sys_info = qla4_8xxx_get_sys_info,
5668 .rd_reg_direct = qla4_83xx_rd_reg,
5669 .wr_reg_direct = qla4_83xx_wr_reg,
5670 .rd_reg_indirect = qla4_83xx_rd_reg_indirect,
5671 .wr_reg_indirect = qla4_83xx_wr_reg_indirect,
5672 .idc_lock = qla4_83xx_drv_lock,
5673 .idc_unlock = qla4_83xx_drv_unlock,
5674 .rom_lock_recovery = qla4_83xx_rom_lock_recovery,
5675 .queue_mailbox_command = qla4_83xx_queue_mbox_cmd,
5676 .process_mailbox_interrupt = qla4_83xx_process_mbox_intr,
5677 };
5678
5679 uint16_t qla4xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha)
5680 {
5681 return (uint16_t)le32_to_cpu(ha->shadow_regs->req_q_out);
5682 }
5683
5684 uint16_t qla4_82xx_rd_shdw_req_q_out(struct scsi_qla_host *ha)
5685 {
5686 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->req_q_out));
5687 }
5688
5689 uint16_t qla4xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha)
5690 {
5691 return (uint16_t)le32_to_cpu(ha->shadow_regs->rsp_q_in);
5692 }
5693
5694 uint16_t qla4_82xx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha)
5695 {
5696 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->rsp_q_in));
5697 }
5698
5699 static ssize_t qla4xxx_show_boot_eth_info(void *data, int type, char *buf)
5700 {
5701 struct scsi_qla_host *ha = data;
5702 char *str = buf;
5703 int rc;
5704
5705 switch (type) {
5706 case ISCSI_BOOT_ETH_FLAGS:
5707 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT);
5708 break;
5709 case ISCSI_BOOT_ETH_INDEX:
5710 rc = sprintf(str, "0\n");
5711 break;
5712 case ISCSI_BOOT_ETH_MAC:
5713 rc = sysfs_format_mac(str, ha->my_mac,
5714 MAC_ADDR_LEN);
5715 break;
5716 default:
5717 rc = -ENOSYS;
5718 break;
5719 }
5720 return rc;
5721 }
5722
5723 static umode_t qla4xxx_eth_get_attr_visibility(void *data, int type)
5724 {
5725 int rc;
5726
5727 switch (type) {
5728 case ISCSI_BOOT_ETH_FLAGS:
5729 case ISCSI_BOOT_ETH_MAC:
5730 case ISCSI_BOOT_ETH_INDEX:
5731 rc = S_IRUGO;
5732 break;
5733 default:
5734 rc = 0;
5735 break;
5736 }
5737 return rc;
5738 }
5739
5740 static ssize_t qla4xxx_show_boot_ini_info(void *data, int type, char *buf)
5741 {
5742 struct scsi_qla_host *ha = data;
5743 char *str = buf;
5744 int rc;
5745
5746 switch (type) {
5747 case ISCSI_BOOT_INI_INITIATOR_NAME:
5748 rc = sprintf(str, "%s\n", ha->name_string);
5749 break;
5750 default:
5751 rc = -ENOSYS;
5752 break;
5753 }
5754 return rc;
5755 }
5756
5757 static umode_t qla4xxx_ini_get_attr_visibility(void *data, int type)
5758 {
5759 int rc;
5760
5761 switch (type) {
5762 case ISCSI_BOOT_INI_INITIATOR_NAME:
5763 rc = S_IRUGO;
5764 break;
5765 default:
5766 rc = 0;
5767 break;
5768 }
5769 return rc;
5770 }
5771
5772 static ssize_t
5773 qla4xxx_show_boot_tgt_info(struct ql4_boot_session_info *boot_sess, int type,
5774 char *buf)
5775 {
5776 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0];
5777 char *str = buf;
5778 int rc;
5779
5780 switch (type) {
5781 case ISCSI_BOOT_TGT_NAME:
5782 rc = sprintf(buf, "%s\n", (char *)&boot_sess->target_name);
5783 break;
5784 case ISCSI_BOOT_TGT_IP_ADDR:
5785 if (boot_sess->conn_list[0].dest_ipaddr.ip_type == 0x1)
5786 rc = sprintf(buf, "%pI4\n",
5787 &boot_conn->dest_ipaddr.ip_address);
5788 else
5789 rc = sprintf(str, "%pI6\n",
5790 &boot_conn->dest_ipaddr.ip_address);
5791 break;
5792 case ISCSI_BOOT_TGT_PORT:
5793 rc = sprintf(str, "%d\n", boot_conn->dest_port);
5794 break;
5795 case ISCSI_BOOT_TGT_CHAP_NAME:
5796 rc = sprintf(str, "%.*s\n",
5797 boot_conn->chap.target_chap_name_length,
5798 (char *)&boot_conn->chap.target_chap_name);
5799 break;
5800 case ISCSI_BOOT_TGT_CHAP_SECRET:
5801 rc = sprintf(str, "%.*s\n",
5802 boot_conn->chap.target_secret_length,
5803 (char *)&boot_conn->chap.target_secret);
5804 break;
5805 case ISCSI_BOOT_TGT_REV_CHAP_NAME:
5806 rc = sprintf(str, "%.*s\n",
5807 boot_conn->chap.intr_chap_name_length,
5808 (char *)&boot_conn->chap.intr_chap_name);
5809 break;
5810 case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
5811 rc = sprintf(str, "%.*s\n",
5812 boot_conn->chap.intr_secret_length,
5813 (char *)&boot_conn->chap.intr_secret);
5814 break;
5815 case ISCSI_BOOT_TGT_FLAGS:
5816 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT);
5817 break;
5818 case ISCSI_BOOT_TGT_NIC_ASSOC:
5819 rc = sprintf(str, "0\n");
5820 break;
5821 default:
5822 rc = -ENOSYS;
5823 break;
5824 }
5825 return rc;
5826 }
5827
5828 static ssize_t qla4xxx_show_boot_tgt_pri_info(void *data, int type, char *buf)
5829 {
5830 struct scsi_qla_host *ha = data;
5831 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_pri_sess);
5832
5833 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf);
5834 }
5835
5836 static ssize_t qla4xxx_show_boot_tgt_sec_info(void *data, int type, char *buf)
5837 {
5838 struct scsi_qla_host *ha = data;
5839 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_sec_sess);
5840
5841 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf);
5842 }
5843
5844 static umode_t qla4xxx_tgt_get_attr_visibility(void *data, int type)
5845 {
5846 int rc;
5847
5848 switch (type) {
5849 case ISCSI_BOOT_TGT_NAME:
5850 case ISCSI_BOOT_TGT_IP_ADDR:
5851 case ISCSI_BOOT_TGT_PORT:
5852 case ISCSI_BOOT_TGT_CHAP_NAME:
5853 case ISCSI_BOOT_TGT_CHAP_SECRET:
5854 case ISCSI_BOOT_TGT_REV_CHAP_NAME:
5855 case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
5856 case ISCSI_BOOT_TGT_NIC_ASSOC:
5857 case ISCSI_BOOT_TGT_FLAGS:
5858 rc = S_IRUGO;
5859 break;
5860 default:
5861 rc = 0;
5862 break;
5863 }
5864 return rc;
5865 }
5866
5867 static void qla4xxx_boot_release(void *data)
5868 {
5869 struct scsi_qla_host *ha = data;
5870
5871 scsi_host_put(ha->host);
5872 }
5873
5874 static int get_fw_boot_info(struct scsi_qla_host *ha, uint16_t ddb_index[])
5875 {
5876 dma_addr_t buf_dma;
5877 uint32_t addr, pri_addr, sec_addr;
5878 uint32_t offset;
5879 uint16_t func_num;
5880 uint8_t val;
5881 uint8_t *buf = NULL;
5882 size_t size = 13 * sizeof(uint8_t);
5883 int ret = QLA_SUCCESS;
5884
5885 func_num = PCI_FUNC(ha->pdev->devfn);
5886
5887 ql4_printk(KERN_INFO, ha, "%s: Get FW boot info for 0x%x func %d\n",
5888 __func__, ha->pdev->device, func_num);
5889
5890 if (is_qla40XX(ha)) {
5891 if (func_num == 1) {
5892 addr = NVRAM_PORT0_BOOT_MODE;
5893 pri_addr = NVRAM_PORT0_BOOT_PRI_TGT;
5894 sec_addr = NVRAM_PORT0_BOOT_SEC_TGT;
5895 } else if (func_num == 3) {
5896 addr = NVRAM_PORT1_BOOT_MODE;
5897 pri_addr = NVRAM_PORT1_BOOT_PRI_TGT;
5898 sec_addr = NVRAM_PORT1_BOOT_SEC_TGT;
5899 } else {
5900 ret = QLA_ERROR;
5901 goto exit_boot_info;
5902 }
5903
5904 /* Check Boot Mode */
5905 val = rd_nvram_byte(ha, addr);
5906 if (!(val & 0x07)) {
5907 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Adapter boot "
5908 "options : 0x%x\n", __func__, val));
5909 ret = QLA_ERROR;
5910 goto exit_boot_info;
5911 }
5912
5913 /* get primary valid target index */
5914 val = rd_nvram_byte(ha, pri_addr);
5915 if (val & BIT_7)
5916 ddb_index[0] = (val & 0x7f);
5917
5918 /* get secondary valid target index */
5919 val = rd_nvram_byte(ha, sec_addr);
5920 if (val & BIT_7)
5921 ddb_index[1] = (val & 0x7f);
5922
5923 } else if (is_qla80XX(ha)) {
5924 buf = dma_alloc_coherent(&ha->pdev->dev, size,
5925 &buf_dma, GFP_KERNEL);
5926 if (!buf) {
5927 DEBUG2(ql4_printk(KERN_ERR, ha,
5928 "%s: Unable to allocate dma buffer\n",
5929 __func__));
5930 ret = QLA_ERROR;
5931 goto exit_boot_info;
5932 }
5933
5934 if (ha->port_num == 0)
5935 offset = BOOT_PARAM_OFFSET_PORT0;
5936 else if (ha->port_num == 1)
5937 offset = BOOT_PARAM_OFFSET_PORT1;
5938 else {
5939 ret = QLA_ERROR;
5940 goto exit_boot_info_free;
5941 }
5942 addr = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_iscsi_param * 4) +
5943 offset;
5944 if (qla4xxx_get_flash(ha, buf_dma, addr,
5945 13 * sizeof(uint8_t)) != QLA_SUCCESS) {
5946 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: Get Flash"
5947 " failed\n", ha->host_no, __func__));
5948 ret = QLA_ERROR;
5949 goto exit_boot_info_free;
5950 }
5951 /* Check Boot Mode */
5952 if (!(buf[1] & 0x07)) {
5953 DEBUG2(ql4_printk(KERN_INFO, ha, "Firmware boot options"
5954 " : 0x%x\n", buf[1]));
5955 ret = QLA_ERROR;
5956 goto exit_boot_info_free;
5957 }
5958
5959 /* get primary valid target index */
5960 if (buf[2] & BIT_7)
5961 ddb_index[0] = buf[2] & 0x7f;
5962
5963 /* get secondary valid target index */
5964 if (buf[11] & BIT_7)
5965 ddb_index[1] = buf[11] & 0x7f;
5966 } else {
5967 ret = QLA_ERROR;
5968 goto exit_boot_info;
5969 }
5970
5971 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary target ID %d, Secondary"
5972 " target ID %d\n", __func__, ddb_index[0],
5973 ddb_index[1]));
5974
5975 exit_boot_info_free:
5976 dma_free_coherent(&ha->pdev->dev, size, buf, buf_dma);
5977 exit_boot_info:
5978 ha->pri_ddb_idx = ddb_index[0];
5979 ha->sec_ddb_idx = ddb_index[1];
5980 return ret;
5981 }
5982
5983 /**
5984 * qla4xxx_get_bidi_chap - Get a BIDI CHAP user and password
5985 * @ha: pointer to adapter structure
5986 * @username: CHAP username to be returned
5987 * @password: CHAP password to be returned
5988 *
5989 * If a boot entry has BIDI CHAP enabled then we need to set the BIDI CHAP
5990 * user and password in the sysfs entry in /sys/firmware/iscsi_boot#/.
5991 * So from the CHAP cache find the first BIDI CHAP entry and set it
5992 * to the boot record in sysfs.
5993 **/
5994 static int qla4xxx_get_bidi_chap(struct scsi_qla_host *ha, char *username,
5995 char *password)
5996 {
5997 int i, ret = -EINVAL;
5998 int max_chap_entries = 0;
5999 struct ql4_chap_table *chap_table;
6000
6001 if (is_qla80XX(ha))
6002 max_chap_entries = (ha->hw.flt_chap_size / 2) /
6003 sizeof(struct ql4_chap_table);
6004 else
6005 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
6006
6007 if (!ha->chap_list) {
6008 ql4_printk(KERN_ERR, ha, "Do not have CHAP table cache\n");
6009 return ret;
6010 }
6011
6012 mutex_lock(&ha->chap_sem);
6013 for (i = 0; i < max_chap_entries; i++) {
6014 chap_table = (struct ql4_chap_table *)ha->chap_list + i;
6015 if (chap_table->cookie !=
6016 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) {
6017 continue;
6018 }
6019
6020 if (chap_table->flags & BIT_7) /* local */
6021 continue;
6022
6023 if (!(chap_table->flags & BIT_6)) /* Not BIDI */
6024 continue;
6025
6026 strlcpy(password, chap_table->secret, QL4_CHAP_MAX_SECRET_LEN);
6027 strlcpy(username, chap_table->name, QL4_CHAP_MAX_NAME_LEN);
6028 ret = 0;
6029 break;
6030 }
6031 mutex_unlock(&ha->chap_sem);
6032
6033 return ret;
6034 }
6035
6036
6037 static int qla4xxx_get_boot_target(struct scsi_qla_host *ha,
6038 struct ql4_boot_session_info *boot_sess,
6039 uint16_t ddb_index)
6040 {
6041 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0];
6042 struct dev_db_entry *fw_ddb_entry;
6043 dma_addr_t fw_ddb_entry_dma;
6044 uint16_t idx;
6045 uint16_t options;
6046 int ret = QLA_SUCCESS;
6047
6048 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
6049 &fw_ddb_entry_dma, GFP_KERNEL);
6050 if (!fw_ddb_entry) {
6051 DEBUG2(ql4_printk(KERN_ERR, ha,
6052 "%s: Unable to allocate dma buffer.\n",
6053 __func__));
6054 ret = QLA_ERROR;
6055 return ret;
6056 }
6057
6058 if (qla4xxx_bootdb_by_index(ha, fw_ddb_entry,
6059 fw_ddb_entry_dma, ddb_index)) {
6060 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: No Flash DDB found at "
6061 "index [%d]\n", __func__, ddb_index));
6062 ret = QLA_ERROR;
6063 goto exit_boot_target;
6064 }
6065
6066 /* Update target name and IP from DDB */
6067 memcpy(boot_sess->target_name, fw_ddb_entry->iscsi_name,
6068 min(sizeof(boot_sess->target_name),
6069 sizeof(fw_ddb_entry->iscsi_name)));
6070
6071 options = le16_to_cpu(fw_ddb_entry->options);
6072 if (options & DDB_OPT_IPV6_DEVICE) {
6073 memcpy(&boot_conn->dest_ipaddr.ip_address,
6074 &fw_ddb_entry->ip_addr[0], IPv6_ADDR_LEN);
6075 } else {
6076 boot_conn->dest_ipaddr.ip_type = 0x1;
6077 memcpy(&boot_conn->dest_ipaddr.ip_address,
6078 &fw_ddb_entry->ip_addr[0], IP_ADDR_LEN);
6079 }
6080
6081 boot_conn->dest_port = le16_to_cpu(fw_ddb_entry->port);
6082
6083 /* update chap information */
6084 idx = __le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
6085
6086 if (BIT_7 & le16_to_cpu(fw_ddb_entry->iscsi_options)) {
6087
6088 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting chap\n"));
6089
6090 ret = qla4xxx_get_chap(ha, (char *)&boot_conn->chap.
6091 target_chap_name,
6092 (char *)&boot_conn->chap.target_secret,
6093 idx);
6094 if (ret) {
6095 ql4_printk(KERN_ERR, ha, "Failed to set chap\n");
6096 ret = QLA_ERROR;
6097 goto exit_boot_target;
6098 }
6099
6100 boot_conn->chap.target_chap_name_length = QL4_CHAP_MAX_NAME_LEN;
6101 boot_conn->chap.target_secret_length = QL4_CHAP_MAX_SECRET_LEN;
6102 }
6103
6104 if (BIT_4 & le16_to_cpu(fw_ddb_entry->iscsi_options)) {
6105
6106 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting BIDI chap\n"));
6107
6108 ret = qla4xxx_get_bidi_chap(ha,
6109 (char *)&boot_conn->chap.intr_chap_name,
6110 (char *)&boot_conn->chap.intr_secret);
6111
6112 if (ret) {
6113 ql4_printk(KERN_ERR, ha, "Failed to set BIDI chap\n");
6114 ret = QLA_ERROR;
6115 goto exit_boot_target;
6116 }
6117
6118 boot_conn->chap.intr_chap_name_length = QL4_CHAP_MAX_NAME_LEN;
6119 boot_conn->chap.intr_secret_length = QL4_CHAP_MAX_SECRET_LEN;
6120 }
6121
6122 exit_boot_target:
6123 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
6124 fw_ddb_entry, fw_ddb_entry_dma);
6125 return ret;
6126 }
6127
6128 static int qla4xxx_get_boot_info(struct scsi_qla_host *ha)
6129 {
6130 uint16_t ddb_index[2];
6131 int ret = QLA_ERROR;
6132 int rval;
6133
6134 memset(ddb_index, 0, sizeof(ddb_index));
6135 ddb_index[0] = 0xffff;
6136 ddb_index[1] = 0xffff;
6137 ret = get_fw_boot_info(ha, ddb_index);
6138 if (ret != QLA_SUCCESS) {
6139 DEBUG2(ql4_printk(KERN_INFO, ha,
6140 "%s: No boot target configured.\n", __func__));
6141 return ret;
6142 }
6143
6144 if (ql4xdisablesysfsboot)
6145 return QLA_SUCCESS;
6146
6147 if (ddb_index[0] == 0xffff)
6148 goto sec_target;
6149
6150 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_pri_sess),
6151 ddb_index[0]);
6152 if (rval != QLA_SUCCESS) {
6153 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary boot target not "
6154 "configured\n", __func__));
6155 } else
6156 ret = QLA_SUCCESS;
6157
6158 sec_target:
6159 if (ddb_index[1] == 0xffff)
6160 goto exit_get_boot_info;
6161
6162 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_sec_sess),
6163 ddb_index[1]);
6164 if (rval != QLA_SUCCESS) {
6165 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Secondary boot target not"
6166 " configured\n", __func__));
6167 } else
6168 ret = QLA_SUCCESS;
6169
6170 exit_get_boot_info:
6171 return ret;
6172 }
6173
6174 static int qla4xxx_setup_boot_info(struct scsi_qla_host *ha)
6175 {
6176 struct iscsi_boot_kobj *boot_kobj;
6177
6178 if (qla4xxx_get_boot_info(ha) != QLA_SUCCESS)
6179 return QLA_ERROR;
6180
6181 if (ql4xdisablesysfsboot) {
6182 ql4_printk(KERN_INFO, ha,
6183 "%s: syfsboot disabled - driver will trigger login "
6184 "and publish session for discovery .\n", __func__);
6185 return QLA_SUCCESS;
6186 }
6187
6188
6189 ha->boot_kset = iscsi_boot_create_host_kset(ha->host->host_no);
6190 if (!ha->boot_kset)
6191 goto kset_free;
6192
6193 if (!scsi_host_get(ha->host))
6194 goto kset_free;
6195 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 0, ha,
6196 qla4xxx_show_boot_tgt_pri_info,
6197 qla4xxx_tgt_get_attr_visibility,
6198 qla4xxx_boot_release);
6199 if (!boot_kobj)
6200 goto put_host;
6201
6202 if (!scsi_host_get(ha->host))
6203 goto kset_free;
6204 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 1, ha,
6205 qla4xxx_show_boot_tgt_sec_info,
6206 qla4xxx_tgt_get_attr_visibility,
6207 qla4xxx_boot_release);
6208 if (!boot_kobj)
6209 goto put_host;
6210
6211 if (!scsi_host_get(ha->host))
6212 goto kset_free;
6213 boot_kobj = iscsi_boot_create_initiator(ha->boot_kset, 0, ha,
6214 qla4xxx_show_boot_ini_info,
6215 qla4xxx_ini_get_attr_visibility,
6216 qla4xxx_boot_release);
6217 if (!boot_kobj)
6218 goto put_host;
6219
6220 if (!scsi_host_get(ha->host))
6221 goto kset_free;
6222 boot_kobj = iscsi_boot_create_ethernet(ha->boot_kset, 0, ha,
6223 qla4xxx_show_boot_eth_info,
6224 qla4xxx_eth_get_attr_visibility,
6225 qla4xxx_boot_release);
6226 if (!boot_kobj)
6227 goto put_host;
6228
6229 return QLA_SUCCESS;
6230
6231 put_host:
6232 scsi_host_put(ha->host);
6233 kset_free:
6234 iscsi_boot_destroy_kset(ha->boot_kset);
6235 return -ENOMEM;
6236 }
6237
6238
6239 static void qla4xxx_get_param_ddb(struct ddb_entry *ddb_entry,
6240 struct ql4_tuple_ddb *tddb)
6241 {
6242 struct scsi_qla_host *ha;
6243 struct iscsi_cls_session *cls_sess;
6244 struct iscsi_cls_conn *cls_conn;
6245 struct iscsi_session *sess;
6246 struct iscsi_conn *conn;
6247
6248 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
6249 ha = ddb_entry->ha;
6250 cls_sess = ddb_entry->sess;
6251 sess = cls_sess->dd_data;
6252 cls_conn = ddb_entry->conn;
6253 conn = cls_conn->dd_data;
6254
6255 tddb->tpgt = sess->tpgt;
6256 tddb->port = conn->persistent_port;
6257 strlcpy(tddb->iscsi_name, sess->targetname, ISCSI_NAME_SIZE);
6258 strlcpy(tddb->ip_addr, conn->persistent_address, DDB_IPADDR_LEN);
6259 }
6260
6261 static void qla4xxx_convert_param_ddb(struct dev_db_entry *fw_ddb_entry,
6262 struct ql4_tuple_ddb *tddb,
6263 uint8_t *flash_isid)
6264 {
6265 uint16_t options = 0;
6266
6267 tddb->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
6268 memcpy(&tddb->iscsi_name[0], &fw_ddb_entry->iscsi_name[0],
6269 min(sizeof(tddb->iscsi_name), sizeof(fw_ddb_entry->iscsi_name)));
6270
6271 options = le16_to_cpu(fw_ddb_entry->options);
6272 if (options & DDB_OPT_IPV6_DEVICE)
6273 sprintf(tddb->ip_addr, "%pI6", fw_ddb_entry->ip_addr);
6274 else
6275 sprintf(tddb->ip_addr, "%pI4", fw_ddb_entry->ip_addr);
6276
6277 tddb->port = le16_to_cpu(fw_ddb_entry->port);
6278
6279 if (flash_isid == NULL)
6280 memcpy(&tddb->isid[0], &fw_ddb_entry->isid[0],
6281 sizeof(tddb->isid));
6282 else
6283 memcpy(&tddb->isid[0], &flash_isid[0], sizeof(tddb->isid));
6284 }
6285
6286 static int qla4xxx_compare_tuple_ddb(struct scsi_qla_host *ha,
6287 struct ql4_tuple_ddb *old_tddb,
6288 struct ql4_tuple_ddb *new_tddb,
6289 uint8_t is_isid_compare)
6290 {
6291 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name))
6292 return QLA_ERROR;
6293
6294 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr))
6295 return QLA_ERROR;
6296
6297 if (old_tddb->port != new_tddb->port)
6298 return QLA_ERROR;
6299
6300 /* For multi sessions, driver generates the ISID, so do not compare
6301 * ISID in reset path since it would be a comparison between the
6302 * driver generated ISID and firmware generated ISID. This could
6303 * lead to adding duplicated DDBs in the list as driver generated
6304 * ISID would not match firmware generated ISID.
6305 */
6306 if (is_isid_compare) {
6307 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: old ISID [%02x%02x%02x"
6308 "%02x%02x%02x] New ISID [%02x%02x%02x%02x%02x%02x]\n",
6309 __func__, old_tddb->isid[5], old_tddb->isid[4],
6310 old_tddb->isid[3], old_tddb->isid[2], old_tddb->isid[1],
6311 old_tddb->isid[0], new_tddb->isid[5], new_tddb->isid[4],
6312 new_tddb->isid[3], new_tddb->isid[2], new_tddb->isid[1],
6313 new_tddb->isid[0]));
6314
6315 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0],
6316 sizeof(old_tddb->isid)))
6317 return QLA_ERROR;
6318 }
6319
6320 DEBUG2(ql4_printk(KERN_INFO, ha,
6321 "Match Found, fw[%d,%d,%s,%s], [%d,%d,%s,%s]",
6322 old_tddb->port, old_tddb->tpgt, old_tddb->ip_addr,
6323 old_tddb->iscsi_name, new_tddb->port, new_tddb->tpgt,
6324 new_tddb->ip_addr, new_tddb->iscsi_name));
6325
6326 return QLA_SUCCESS;
6327 }
6328
6329 static int qla4xxx_is_session_exists(struct scsi_qla_host *ha,
6330 struct dev_db_entry *fw_ddb_entry,
6331 uint32_t *index)
6332 {
6333 struct ddb_entry *ddb_entry;
6334 struct ql4_tuple_ddb *fw_tddb = NULL;
6335 struct ql4_tuple_ddb *tmp_tddb = NULL;
6336 int idx;
6337 int ret = QLA_ERROR;
6338
6339 fw_tddb = vzalloc(sizeof(*fw_tddb));
6340 if (!fw_tddb) {
6341 DEBUG2(ql4_printk(KERN_WARNING, ha,
6342 "Memory Allocation failed.\n"));
6343 ret = QLA_SUCCESS;
6344 goto exit_check;
6345 }
6346
6347 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
6348 if (!tmp_tddb) {
6349 DEBUG2(ql4_printk(KERN_WARNING, ha,
6350 "Memory Allocation failed.\n"));
6351 ret = QLA_SUCCESS;
6352 goto exit_check;
6353 }
6354
6355 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL);
6356
6357 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
6358 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
6359 if (ddb_entry == NULL)
6360 continue;
6361
6362 qla4xxx_get_param_ddb(ddb_entry, tmp_tddb);
6363 if (!qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, false)) {
6364 ret = QLA_SUCCESS; /* found */
6365 if (index != NULL)
6366 *index = idx;
6367 goto exit_check;
6368 }
6369 }
6370
6371 exit_check:
6372 if (fw_tddb)
6373 vfree(fw_tddb);
6374 if (tmp_tddb)
6375 vfree(tmp_tddb);
6376 return ret;
6377 }
6378
6379 /**
6380 * qla4xxx_check_existing_isid - check if target with same isid exist
6381 * in target list
6382 * @list_nt: list of target
6383 * @isid: isid to check
6384 *
6385 * This routine return QLA_SUCCESS if target with same isid exist
6386 **/
6387 static int qla4xxx_check_existing_isid(struct list_head *list_nt, uint8_t *isid)
6388 {
6389 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp;
6390 struct dev_db_entry *fw_ddb_entry;
6391
6392 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
6393 fw_ddb_entry = &nt_ddb_idx->fw_ddb;
6394
6395 if (memcmp(&fw_ddb_entry->isid[0], &isid[0],
6396 sizeof(nt_ddb_idx->fw_ddb.isid)) == 0) {
6397 return QLA_SUCCESS;
6398 }
6399 }
6400 return QLA_ERROR;
6401 }
6402
6403 /**
6404 * qla4xxx_update_isid - compare ddbs and updated isid
6405 * @ha: Pointer to host adapter structure.
6406 * @list_nt: list of nt target
6407 * @fw_ddb_entry: firmware ddb entry
6408 *
6409 * This routine update isid if ddbs have same iqn, same isid and
6410 * different IP addr.
6411 * Return QLA_SUCCESS if isid is updated.
6412 **/
6413 static int qla4xxx_update_isid(struct scsi_qla_host *ha,
6414 struct list_head *list_nt,
6415 struct dev_db_entry *fw_ddb_entry)
6416 {
6417 uint8_t base_value, i;
6418
6419 base_value = fw_ddb_entry->isid[1] & 0x1f;
6420 for (i = 0; i < 8; i++) {
6421 fw_ddb_entry->isid[1] = (base_value | (i << 5));
6422 if (qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid))
6423 break;
6424 }
6425
6426 if (!qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid))
6427 return QLA_ERROR;
6428
6429 return QLA_SUCCESS;
6430 }
6431
6432 /**
6433 * qla4xxx_should_update_isid - check if isid need to update
6434 * @ha: Pointer to host adapter structure.
6435 * @old_tddb: ddb tuple
6436 * @new_tddb: ddb tuple
6437 *
6438 * Return QLA_SUCCESS if different IP, different PORT, same iqn,
6439 * same isid
6440 **/
6441 static int qla4xxx_should_update_isid(struct scsi_qla_host *ha,
6442 struct ql4_tuple_ddb *old_tddb,
6443 struct ql4_tuple_ddb *new_tddb)
6444 {
6445 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr) == 0) {
6446 /* Same ip */
6447 if (old_tddb->port == new_tddb->port)
6448 return QLA_ERROR;
6449 }
6450
6451 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name))
6452 /* different iqn */
6453 return QLA_ERROR;
6454
6455 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0],
6456 sizeof(old_tddb->isid)))
6457 /* different isid */
6458 return QLA_ERROR;
6459
6460 return QLA_SUCCESS;
6461 }
6462
6463 /**
6464 * qla4xxx_is_flash_ddb_exists - check if fw_ddb_entry already exists in list_nt
6465 * @ha: Pointer to host adapter structure.
6466 * @list_nt: list of nt target.
6467 * @fw_ddb_entry: firmware ddb entry.
6468 *
6469 * This routine check if fw_ddb_entry already exists in list_nt to avoid
6470 * duplicate ddb in list_nt.
6471 * Return QLA_SUCCESS if duplicate ddb exit in list_nl.
6472 * Note: This function also update isid of DDB if required.
6473 **/
6474
6475 static int qla4xxx_is_flash_ddb_exists(struct scsi_qla_host *ha,
6476 struct list_head *list_nt,
6477 struct dev_db_entry *fw_ddb_entry)
6478 {
6479 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp;
6480 struct ql4_tuple_ddb *fw_tddb = NULL;
6481 struct ql4_tuple_ddb *tmp_tddb = NULL;
6482 int rval, ret = QLA_ERROR;
6483
6484 fw_tddb = vzalloc(sizeof(*fw_tddb));
6485 if (!fw_tddb) {
6486 DEBUG2(ql4_printk(KERN_WARNING, ha,
6487 "Memory Allocation failed.\n"));
6488 ret = QLA_SUCCESS;
6489 goto exit_check;
6490 }
6491
6492 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
6493 if (!tmp_tddb) {
6494 DEBUG2(ql4_printk(KERN_WARNING, ha,
6495 "Memory Allocation failed.\n"));
6496 ret = QLA_SUCCESS;
6497 goto exit_check;
6498 }
6499
6500 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL);
6501
6502 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
6503 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb,
6504 nt_ddb_idx->flash_isid);
6505 ret = qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, true);
6506 /* found duplicate ddb */
6507 if (ret == QLA_SUCCESS)
6508 goto exit_check;
6509 }
6510
6511 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
6512 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb, NULL);
6513
6514 ret = qla4xxx_should_update_isid(ha, tmp_tddb, fw_tddb);
6515 if (ret == QLA_SUCCESS) {
6516 rval = qla4xxx_update_isid(ha, list_nt, fw_ddb_entry);
6517 if (rval == QLA_SUCCESS)
6518 ret = QLA_ERROR;
6519 else
6520 ret = QLA_SUCCESS;
6521
6522 goto exit_check;
6523 }
6524 }
6525
6526 exit_check:
6527 if (fw_tddb)
6528 vfree(fw_tddb);
6529 if (tmp_tddb)
6530 vfree(tmp_tddb);
6531 return ret;
6532 }
6533
6534 static void qla4xxx_free_ddb_list(struct list_head *list_ddb)
6535 {
6536 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
6537
6538 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
6539 list_del_init(&ddb_idx->list);
6540 vfree(ddb_idx);
6541 }
6542 }
6543
6544 static struct iscsi_endpoint *qla4xxx_get_ep_fwdb(struct scsi_qla_host *ha,
6545 struct dev_db_entry *fw_ddb_entry)
6546 {
6547 struct iscsi_endpoint *ep;
6548 struct sockaddr_in *addr;
6549 struct sockaddr_in6 *addr6;
6550 struct sockaddr *t_addr;
6551 struct sockaddr_storage *dst_addr;
6552 char *ip;
6553
6554 /* TODO: need to destroy on unload iscsi_endpoint*/
6555 dst_addr = vmalloc(sizeof(*dst_addr));
6556 if (!dst_addr)
6557 return NULL;
6558
6559 if (fw_ddb_entry->options & DDB_OPT_IPV6_DEVICE) {
6560 t_addr = (struct sockaddr *)dst_addr;
6561 t_addr->sa_family = AF_INET6;
6562 addr6 = (struct sockaddr_in6 *)dst_addr;
6563 ip = (char *)&addr6->sin6_addr;
6564 memcpy(ip, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN);
6565 addr6->sin6_port = htons(le16_to_cpu(fw_ddb_entry->port));
6566
6567 } else {
6568 t_addr = (struct sockaddr *)dst_addr;
6569 t_addr->sa_family = AF_INET;
6570 addr = (struct sockaddr_in *)dst_addr;
6571 ip = (char *)&addr->sin_addr;
6572 memcpy(ip, fw_ddb_entry->ip_addr, IP_ADDR_LEN);
6573 addr->sin_port = htons(le16_to_cpu(fw_ddb_entry->port));
6574 }
6575
6576 ep = qla4xxx_ep_connect(ha->host, (struct sockaddr *)dst_addr, 0);
6577 vfree(dst_addr);
6578 return ep;
6579 }
6580
6581 static int qla4xxx_verify_boot_idx(struct scsi_qla_host *ha, uint16_t idx)
6582 {
6583 if (ql4xdisablesysfsboot)
6584 return QLA_SUCCESS;
6585 if (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx)
6586 return QLA_ERROR;
6587 return QLA_SUCCESS;
6588 }
6589
6590 static void qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha,
6591 struct ddb_entry *ddb_entry,
6592 uint16_t idx)
6593 {
6594 uint16_t def_timeout;
6595
6596 ddb_entry->ddb_type = FLASH_DDB;
6597 ddb_entry->fw_ddb_index = INVALID_ENTRY;
6598 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE;
6599 ddb_entry->ha = ha;
6600 ddb_entry->unblock_sess = qla4xxx_unblock_flash_ddb;
6601 ddb_entry->ddb_change = qla4xxx_flash_ddb_change;
6602 ddb_entry->chap_tbl_idx = INVALID_ENTRY;
6603
6604 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY);
6605 atomic_set(&ddb_entry->relogin_timer, 0);
6606 atomic_set(&ddb_entry->relogin_retry_count, 0);
6607 def_timeout = le16_to_cpu(ddb_entry->fw_ddb_entry.def_timeout);
6608 ddb_entry->default_relogin_timeout =
6609 (def_timeout > LOGIN_TOV) && (def_timeout < LOGIN_TOV * 10) ?
6610 def_timeout : LOGIN_TOV;
6611 ddb_entry->default_time2wait =
6612 le16_to_cpu(ddb_entry->fw_ddb_entry.iscsi_def_time2wait);
6613
6614 if (ql4xdisablesysfsboot &&
6615 (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx))
6616 set_bit(DF_BOOT_TGT, &ddb_entry->flags);
6617 }
6618
6619 static void qla4xxx_wait_for_ip_configuration(struct scsi_qla_host *ha)
6620 {
6621 uint32_t idx = 0;
6622 uint32_t ip_idx[IP_ADDR_COUNT] = {0, 1, 2, 3}; /* 4 IP interfaces */
6623 uint32_t sts[MBOX_REG_COUNT];
6624 uint32_t ip_state;
6625 unsigned long wtime;
6626 int ret;
6627
6628 wtime = jiffies + (HZ * IP_CONFIG_TOV);
6629 do {
6630 for (idx = 0; idx < IP_ADDR_COUNT; idx++) {
6631 if (ip_idx[idx] == -1)
6632 continue;
6633
6634 ret = qla4xxx_get_ip_state(ha, 0, ip_idx[idx], sts);
6635
6636 if (ret == QLA_ERROR) {
6637 ip_idx[idx] = -1;
6638 continue;
6639 }
6640
6641 ip_state = (sts[1] & IP_STATE_MASK) >> IP_STATE_SHIFT;
6642
6643 DEBUG2(ql4_printk(KERN_INFO, ha,
6644 "Waiting for IP state for idx = %d, state = 0x%x\n",
6645 ip_idx[idx], ip_state));
6646 if (ip_state == IP_ADDRSTATE_UNCONFIGURED ||
6647 ip_state == IP_ADDRSTATE_INVALID ||
6648 ip_state == IP_ADDRSTATE_PREFERRED ||
6649 ip_state == IP_ADDRSTATE_DEPRICATED ||
6650 ip_state == IP_ADDRSTATE_DISABLING)
6651 ip_idx[idx] = -1;
6652 }
6653
6654 /* Break if all IP states checked */
6655 if ((ip_idx[0] == -1) &&
6656 (ip_idx[1] == -1) &&
6657 (ip_idx[2] == -1) &&
6658 (ip_idx[3] == -1))
6659 break;
6660 schedule_timeout_uninterruptible(HZ);
6661 } while (time_after(wtime, jiffies));
6662 }
6663
6664 static int qla4xxx_cmp_fw_stentry(struct dev_db_entry *fw_ddb_entry,
6665 struct dev_db_entry *flash_ddb_entry)
6666 {
6667 uint16_t options = 0;
6668 size_t ip_len = IP_ADDR_LEN;
6669
6670 options = le16_to_cpu(fw_ddb_entry->options);
6671 if (options & DDB_OPT_IPV6_DEVICE)
6672 ip_len = IPv6_ADDR_LEN;
6673
6674 if (memcmp(fw_ddb_entry->ip_addr, flash_ddb_entry->ip_addr, ip_len))
6675 return QLA_ERROR;
6676
6677 if (memcmp(&fw_ddb_entry->isid[0], &flash_ddb_entry->isid[0],
6678 sizeof(fw_ddb_entry->isid)))
6679 return QLA_ERROR;
6680
6681 if (memcmp(&fw_ddb_entry->port, &flash_ddb_entry->port,
6682 sizeof(fw_ddb_entry->port)))
6683 return QLA_ERROR;
6684
6685 return QLA_SUCCESS;
6686 }
6687
6688 static int qla4xxx_find_flash_st_idx(struct scsi_qla_host *ha,
6689 struct dev_db_entry *fw_ddb_entry,
6690 uint32_t fw_idx, uint32_t *flash_index)
6691 {
6692 struct dev_db_entry *flash_ddb_entry;
6693 dma_addr_t flash_ddb_entry_dma;
6694 uint32_t idx = 0;
6695 int max_ddbs;
6696 int ret = QLA_ERROR, status;
6697
6698 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
6699 MAX_DEV_DB_ENTRIES;
6700
6701 flash_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
6702 &flash_ddb_entry_dma);
6703 if (flash_ddb_entry == NULL || fw_ddb_entry == NULL) {
6704 ql4_printk(KERN_ERR, ha, "Out of memory\n");
6705 goto exit_find_st_idx;
6706 }
6707
6708 status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry,
6709 flash_ddb_entry_dma, fw_idx);
6710 if (status == QLA_SUCCESS) {
6711 status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry);
6712 if (status == QLA_SUCCESS) {
6713 *flash_index = fw_idx;
6714 ret = QLA_SUCCESS;
6715 goto exit_find_st_idx;
6716 }
6717 }
6718
6719 for (idx = 0; idx < max_ddbs; idx++) {
6720 status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry,
6721 flash_ddb_entry_dma, idx);
6722 if (status == QLA_ERROR)
6723 continue;
6724
6725 status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry);
6726 if (status == QLA_SUCCESS) {
6727 *flash_index = idx;
6728 ret = QLA_SUCCESS;
6729 goto exit_find_st_idx;
6730 }
6731 }
6732
6733 if (idx == max_ddbs)
6734 ql4_printk(KERN_ERR, ha, "Failed to find ST [%d] in flash\n",
6735 fw_idx);
6736
6737 exit_find_st_idx:
6738 if (flash_ddb_entry)
6739 dma_pool_free(ha->fw_ddb_dma_pool, flash_ddb_entry,
6740 flash_ddb_entry_dma);
6741
6742 return ret;
6743 }
6744
6745 static void qla4xxx_build_st_list(struct scsi_qla_host *ha,
6746 struct list_head *list_st)
6747 {
6748 struct qla_ddb_index *st_ddb_idx;
6749 int max_ddbs;
6750 int fw_idx_size;
6751 struct dev_db_entry *fw_ddb_entry;
6752 dma_addr_t fw_ddb_dma;
6753 int ret;
6754 uint32_t idx = 0, next_idx = 0;
6755 uint32_t state = 0, conn_err = 0;
6756 uint32_t flash_index = -1;
6757 uint16_t conn_id = 0;
6758
6759 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
6760 &fw_ddb_dma);
6761 if (fw_ddb_entry == NULL) {
6762 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
6763 goto exit_st_list;
6764 }
6765
6766 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
6767 MAX_DEV_DB_ENTRIES;
6768 fw_idx_size = sizeof(struct qla_ddb_index);
6769
6770 for (idx = 0; idx < max_ddbs; idx = next_idx) {
6771 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
6772 NULL, &next_idx, &state,
6773 &conn_err, NULL, &conn_id);
6774 if (ret == QLA_ERROR)
6775 break;
6776
6777 /* Ignore DDB if invalid state (unassigned) */
6778 if (state == DDB_DS_UNASSIGNED)
6779 goto continue_next_st;
6780
6781 /* Check if ST, add to the list_st */
6782 if (strlen((char *) fw_ddb_entry->iscsi_name) != 0)
6783 goto continue_next_st;
6784
6785 st_ddb_idx = vzalloc(fw_idx_size);
6786 if (!st_ddb_idx)
6787 break;
6788
6789 ret = qla4xxx_find_flash_st_idx(ha, fw_ddb_entry, idx,
6790 &flash_index);
6791 if (ret == QLA_ERROR) {
6792 ql4_printk(KERN_ERR, ha,
6793 "No flash entry for ST at idx [%d]\n", idx);
6794 st_ddb_idx->flash_ddb_idx = idx;
6795 } else {
6796 ql4_printk(KERN_INFO, ha,
6797 "ST at idx [%d] is stored at flash [%d]\n",
6798 idx, flash_index);
6799 st_ddb_idx->flash_ddb_idx = flash_index;
6800 }
6801
6802 st_ddb_idx->fw_ddb_idx = idx;
6803
6804 list_add_tail(&st_ddb_idx->list, list_st);
6805 continue_next_st:
6806 if (next_idx == 0)
6807 break;
6808 }
6809
6810 exit_st_list:
6811 if (fw_ddb_entry)
6812 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
6813 }
6814
6815 /**
6816 * qla4xxx_remove_failed_ddb - Remove inactive or failed ddb from list
6817 * @ha: pointer to adapter structure
6818 * @list_ddb: List from which failed ddb to be removed
6819 *
6820 * Iterate over the list of DDBs and find and remove DDBs that are either in
6821 * no connection active state or failed state
6822 **/
6823 static void qla4xxx_remove_failed_ddb(struct scsi_qla_host *ha,
6824 struct list_head *list_ddb)
6825 {
6826 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
6827 uint32_t next_idx = 0;
6828 uint32_t state = 0, conn_err = 0;
6829 int ret;
6830
6831 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
6832 ret = qla4xxx_get_fwddb_entry(ha, ddb_idx->fw_ddb_idx,
6833 NULL, 0, NULL, &next_idx, &state,
6834 &conn_err, NULL, NULL);
6835 if (ret == QLA_ERROR)
6836 continue;
6837
6838 if (state == DDB_DS_NO_CONNECTION_ACTIVE ||
6839 state == DDB_DS_SESSION_FAILED) {
6840 list_del_init(&ddb_idx->list);
6841 vfree(ddb_idx);
6842 }
6843 }
6844 }
6845
6846 static void qla4xxx_update_sess_disc_idx(struct scsi_qla_host *ha,
6847 struct ddb_entry *ddb_entry,
6848 struct dev_db_entry *fw_ddb_entry)
6849 {
6850 struct iscsi_cls_session *cls_sess;
6851 struct iscsi_session *sess;
6852 uint32_t max_ddbs = 0;
6853 uint16_t ddb_link = -1;
6854
6855 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
6856 MAX_DEV_DB_ENTRIES;
6857
6858 cls_sess = ddb_entry->sess;
6859 sess = cls_sess->dd_data;
6860
6861 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
6862 if (ddb_link < max_ddbs)
6863 sess->discovery_parent_idx = ddb_link;
6864 else
6865 sess->discovery_parent_idx = DDB_NO_LINK;
6866 }
6867
6868 static int qla4xxx_sess_conn_setup(struct scsi_qla_host *ha,
6869 struct dev_db_entry *fw_ddb_entry,
6870 int is_reset, uint16_t idx)
6871 {
6872 struct iscsi_cls_session *cls_sess;
6873 struct iscsi_session *sess;
6874 struct iscsi_cls_conn *cls_conn;
6875 struct iscsi_endpoint *ep;
6876 uint16_t cmds_max = 32;
6877 uint16_t conn_id = 0;
6878 uint32_t initial_cmdsn = 0;
6879 int ret = QLA_SUCCESS;
6880
6881 struct ddb_entry *ddb_entry = NULL;
6882
6883 /* Create session object, with INVALID_ENTRY,
6884 * the targer_id would get set when we issue the login
6885 */
6886 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, ha->host,
6887 cmds_max, sizeof(struct ddb_entry),
6888 sizeof(struct ql4_task_data),
6889 initial_cmdsn, INVALID_ENTRY);
6890 if (!cls_sess) {
6891 ret = QLA_ERROR;
6892 goto exit_setup;
6893 }
6894
6895 /*
6896 * so calling module_put function to decrement the
6897 * reference count.
6898 **/
6899 module_put(qla4xxx_iscsi_transport.owner);
6900 sess = cls_sess->dd_data;
6901 ddb_entry = sess->dd_data;
6902 ddb_entry->sess = cls_sess;
6903
6904 cls_sess->recovery_tmo = ql4xsess_recovery_tmo;
6905 memcpy(&ddb_entry->fw_ddb_entry, fw_ddb_entry,
6906 sizeof(struct dev_db_entry));
6907
6908 qla4xxx_setup_flash_ddb_entry(ha, ddb_entry, idx);
6909
6910 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), conn_id);
6911
6912 if (!cls_conn) {
6913 ret = QLA_ERROR;
6914 goto exit_setup;
6915 }
6916
6917 ddb_entry->conn = cls_conn;
6918
6919 /* Setup ep, for displaying attributes in sysfs */
6920 ep = qla4xxx_get_ep_fwdb(ha, fw_ddb_entry);
6921 if (ep) {
6922 ep->conn = cls_conn;
6923 cls_conn->ep = ep;
6924 } else {
6925 DEBUG2(ql4_printk(KERN_ERR, ha, "Unable to get ep\n"));
6926 ret = QLA_ERROR;
6927 goto exit_setup;
6928 }
6929
6930 /* Update sess/conn params */
6931 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn);
6932 qla4xxx_update_sess_disc_idx(ha, ddb_entry, fw_ddb_entry);
6933
6934 if (is_reset == RESET_ADAPTER) {
6935 iscsi_block_session(cls_sess);
6936 /* Use the relogin path to discover new devices
6937 * by short-circuting the logic of setting
6938 * timer to relogin - instead set the flags
6939 * to initiate login right away.
6940 */
6941 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
6942 set_bit(DF_RELOGIN, &ddb_entry->flags);
6943 }
6944
6945 exit_setup:
6946 return ret;
6947 }
6948
6949 static void qla4xxx_update_fw_ddb_link(struct scsi_qla_host *ha,
6950 struct list_head *list_ddb,
6951 struct dev_db_entry *fw_ddb_entry)
6952 {
6953 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
6954 uint16_t ddb_link;
6955
6956 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
6957
6958 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
6959 if (ddb_idx->fw_ddb_idx == ddb_link) {
6960 DEBUG2(ql4_printk(KERN_INFO, ha,
6961 "Updating NT parent idx from [%d] to [%d]\n",
6962 ddb_link, ddb_idx->flash_ddb_idx));
6963 fw_ddb_entry->ddb_link =
6964 cpu_to_le16(ddb_idx->flash_ddb_idx);
6965 return;
6966 }
6967 }
6968 }
6969
6970 static void qla4xxx_build_nt_list(struct scsi_qla_host *ha,
6971 struct list_head *list_nt,
6972 struct list_head *list_st,
6973 int is_reset)
6974 {
6975 struct dev_db_entry *fw_ddb_entry;
6976 struct ddb_entry *ddb_entry = NULL;
6977 dma_addr_t fw_ddb_dma;
6978 int max_ddbs;
6979 int fw_idx_size;
6980 int ret;
6981 uint32_t idx = 0, next_idx = 0;
6982 uint32_t state = 0, conn_err = 0;
6983 uint32_t ddb_idx = -1;
6984 uint16_t conn_id = 0;
6985 uint16_t ddb_link = -1;
6986 struct qla_ddb_index *nt_ddb_idx;
6987
6988 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
6989 &fw_ddb_dma);
6990 if (fw_ddb_entry == NULL) {
6991 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
6992 goto exit_nt_list;
6993 }
6994 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
6995 MAX_DEV_DB_ENTRIES;
6996 fw_idx_size = sizeof(struct qla_ddb_index);
6997
6998 for (idx = 0; idx < max_ddbs; idx = next_idx) {
6999 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
7000 NULL, &next_idx, &state,
7001 &conn_err, NULL, &conn_id);
7002 if (ret == QLA_ERROR)
7003 break;
7004
7005 if (qla4xxx_verify_boot_idx(ha, idx) != QLA_SUCCESS)
7006 goto continue_next_nt;
7007
7008 /* Check if NT, then add to list it */
7009 if (strlen((char *) fw_ddb_entry->iscsi_name) == 0)
7010 goto continue_next_nt;
7011
7012 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
7013 if (ddb_link < max_ddbs)
7014 qla4xxx_update_fw_ddb_link(ha, list_st, fw_ddb_entry);
7015
7016 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE ||
7017 state == DDB_DS_SESSION_FAILED) &&
7018 (is_reset == INIT_ADAPTER))
7019 goto continue_next_nt;
7020
7021 DEBUG2(ql4_printk(KERN_INFO, ha,
7022 "Adding DDB to session = 0x%x\n", idx));
7023
7024 if (is_reset == INIT_ADAPTER) {
7025 nt_ddb_idx = vmalloc(fw_idx_size);
7026 if (!nt_ddb_idx)
7027 break;
7028
7029 nt_ddb_idx->fw_ddb_idx = idx;
7030
7031 /* Copy original isid as it may get updated in function
7032 * qla4xxx_update_isid(). We need original isid in
7033 * function qla4xxx_compare_tuple_ddb to find duplicate
7034 * target */
7035 memcpy(&nt_ddb_idx->flash_isid[0],
7036 &fw_ddb_entry->isid[0],
7037 sizeof(nt_ddb_idx->flash_isid));
7038
7039 ret = qla4xxx_is_flash_ddb_exists(ha, list_nt,
7040 fw_ddb_entry);
7041 if (ret == QLA_SUCCESS) {
7042 /* free nt_ddb_idx and do not add to list_nt */
7043 vfree(nt_ddb_idx);
7044 goto continue_next_nt;
7045 }
7046
7047 /* Copy updated isid */
7048 memcpy(&nt_ddb_idx->fw_ddb, fw_ddb_entry,
7049 sizeof(struct dev_db_entry));
7050
7051 list_add_tail(&nt_ddb_idx->list, list_nt);
7052 } else if (is_reset == RESET_ADAPTER) {
7053 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry,
7054 &ddb_idx);
7055 if (ret == QLA_SUCCESS) {
7056 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha,
7057 ddb_idx);
7058 if (ddb_entry != NULL)
7059 qla4xxx_update_sess_disc_idx(ha,
7060 ddb_entry,
7061 fw_ddb_entry);
7062 goto continue_next_nt;
7063 }
7064 }
7065
7066 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, is_reset, idx);
7067 if (ret == QLA_ERROR)
7068 goto exit_nt_list;
7069
7070 continue_next_nt:
7071 if (next_idx == 0)
7072 break;
7073 }
7074
7075 exit_nt_list:
7076 if (fw_ddb_entry)
7077 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
7078 }
7079
7080 static void qla4xxx_build_new_nt_list(struct scsi_qla_host *ha,
7081 struct list_head *list_nt,
7082 uint16_t target_id)
7083 {
7084 struct dev_db_entry *fw_ddb_entry;
7085 dma_addr_t fw_ddb_dma;
7086 int max_ddbs;
7087 int fw_idx_size;
7088 int ret;
7089 uint32_t idx = 0, next_idx = 0;
7090 uint32_t state = 0, conn_err = 0;
7091 uint16_t conn_id = 0;
7092 struct qla_ddb_index *nt_ddb_idx;
7093
7094 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
7095 &fw_ddb_dma);
7096 if (fw_ddb_entry == NULL) {
7097 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
7098 goto exit_new_nt_list;
7099 }
7100 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
7101 MAX_DEV_DB_ENTRIES;
7102 fw_idx_size = sizeof(struct qla_ddb_index);
7103
7104 for (idx = 0; idx < max_ddbs; idx = next_idx) {
7105 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
7106 NULL, &next_idx, &state,
7107 &conn_err, NULL, &conn_id);
7108 if (ret == QLA_ERROR)
7109 break;
7110
7111 /* Check if NT, then add it to list */
7112 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0)
7113 goto continue_next_new_nt;
7114
7115 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE))
7116 goto continue_next_new_nt;
7117
7118 DEBUG2(ql4_printk(KERN_INFO, ha,
7119 "Adding DDB to session = 0x%x\n", idx));
7120
7121 nt_ddb_idx = vmalloc(fw_idx_size);
7122 if (!nt_ddb_idx)
7123 break;
7124
7125 nt_ddb_idx->fw_ddb_idx = idx;
7126
7127 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL);
7128 if (ret == QLA_SUCCESS) {
7129 /* free nt_ddb_idx and do not add to list_nt */
7130 vfree(nt_ddb_idx);
7131 goto continue_next_new_nt;
7132 }
7133
7134 if (target_id < max_ddbs)
7135 fw_ddb_entry->ddb_link = cpu_to_le16(target_id);
7136
7137 list_add_tail(&nt_ddb_idx->list, list_nt);
7138
7139 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER,
7140 idx);
7141 if (ret == QLA_ERROR)
7142 goto exit_new_nt_list;
7143
7144 continue_next_new_nt:
7145 if (next_idx == 0)
7146 break;
7147 }
7148
7149 exit_new_nt_list:
7150 if (fw_ddb_entry)
7151 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
7152 }
7153
7154 /**
7155 * qla4xxx_sysfs_ddb_is_non_persistent - check for non-persistence of ddb entry
7156 * @dev: dev associated with the sysfs entry
7157 * @data: pointer to flashnode session object
7158 *
7159 * Returns:
7160 * 1: if flashnode entry is non-persistent
7161 * 0: if flashnode entry is persistent
7162 **/
7163 static int qla4xxx_sysfs_ddb_is_non_persistent(struct device *dev, void *data)
7164 {
7165 struct iscsi_bus_flash_session *fnode_sess;
7166
7167 if (!iscsi_flashnode_bus_match(dev, NULL))
7168 return 0;
7169
7170 fnode_sess = iscsi_dev_to_flash_session(dev);
7171
7172 return (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT);
7173 }
7174
7175 /**
7176 * qla4xxx_sysfs_ddb_tgt_create - Create sysfs entry for target
7177 * @ha: pointer to host
7178 * @fw_ddb_entry: flash ddb data
7179 * @idx: target index
7180 * @user: if set then this call is made from userland else from kernel
7181 *
7182 * Returns:
7183 * On sucess: QLA_SUCCESS
7184 * On failure: QLA_ERROR
7185 *
7186 * This create separate sysfs entries for session and connection attributes of
7187 * the given fw ddb entry.
7188 * If this is invoked as a result of a userspace call then the entry is marked
7189 * as nonpersistent using flash_state field.
7190 **/
7191 static int qla4xxx_sysfs_ddb_tgt_create(struct scsi_qla_host *ha,
7192 struct dev_db_entry *fw_ddb_entry,
7193 uint16_t *idx, int user)
7194 {
7195 struct iscsi_bus_flash_session *fnode_sess = NULL;
7196 struct iscsi_bus_flash_conn *fnode_conn = NULL;
7197 int rc = QLA_ERROR;
7198
7199 fnode_sess = iscsi_create_flashnode_sess(ha->host, *idx,
7200 &qla4xxx_iscsi_transport, 0);
7201 if (!fnode_sess) {
7202 ql4_printk(KERN_ERR, ha,
7203 "%s: Unable to create session sysfs entry for flashnode %d of host%lu\n",
7204 __func__, *idx, ha->host_no);
7205 goto exit_tgt_create;
7206 }
7207
7208 fnode_conn = iscsi_create_flashnode_conn(ha->host, fnode_sess,
7209 &qla4xxx_iscsi_transport, 0);
7210 if (!fnode_conn) {
7211 ql4_printk(KERN_ERR, ha,
7212 "%s: Unable to create conn sysfs entry for flashnode %d of host%lu\n",
7213 __func__, *idx, ha->host_no);
7214 goto free_sess;
7215 }
7216
7217 if (user) {
7218 fnode_sess->flash_state = DEV_DB_NON_PERSISTENT;
7219 } else {
7220 fnode_sess->flash_state = DEV_DB_PERSISTENT;
7221
7222 if (*idx == ha->pri_ddb_idx || *idx == ha->sec_ddb_idx)
7223 fnode_sess->is_boot_target = 1;
7224 else
7225 fnode_sess->is_boot_target = 0;
7226 }
7227
7228 rc = qla4xxx_copy_from_fwddb_param(fnode_sess, fnode_conn,
7229 fw_ddb_entry);
7230
7231 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n",
7232 __func__, fnode_sess->dev.kobj.name);
7233
7234 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n",
7235 __func__, fnode_conn->dev.kobj.name);
7236
7237 return QLA_SUCCESS;
7238
7239 free_sess:
7240 iscsi_destroy_flashnode_sess(fnode_sess);
7241
7242 exit_tgt_create:
7243 return QLA_ERROR;
7244 }
7245
7246 /**
7247 * qla4xxx_sysfs_ddb_add - Add new ddb entry in flash
7248 * @shost: pointer to host
7249 * @buf: type of ddb entry (ipv4/ipv6)
7250 * @len: length of buf
7251 *
7252 * This creates new ddb entry in the flash by finding first free index and
7253 * storing default ddb there. And then create sysfs entry for the new ddb entry.
7254 **/
7255 static int qla4xxx_sysfs_ddb_add(struct Scsi_Host *shost, const char *buf,
7256 int len)
7257 {
7258 struct scsi_qla_host *ha = to_qla_host(shost);
7259 struct dev_db_entry *fw_ddb_entry = NULL;
7260 dma_addr_t fw_ddb_entry_dma;
7261 struct device *dev;
7262 uint16_t idx = 0;
7263 uint16_t max_ddbs = 0;
7264 uint32_t options = 0;
7265 uint32_t rval = QLA_ERROR;
7266
7267 if (strncasecmp(PORTAL_TYPE_IPV4, buf, 4) &&
7268 strncasecmp(PORTAL_TYPE_IPV6, buf, 4)) {
7269 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Invalid portal type\n",
7270 __func__));
7271 goto exit_ddb_add;
7272 }
7273
7274 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES :
7275 MAX_DEV_DB_ENTRIES;
7276
7277 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7278 &fw_ddb_entry_dma, GFP_KERNEL);
7279 if (!fw_ddb_entry) {
7280 DEBUG2(ql4_printk(KERN_ERR, ha,
7281 "%s: Unable to allocate dma buffer\n",
7282 __func__));
7283 goto exit_ddb_add;
7284 }
7285
7286 dev = iscsi_find_flashnode_sess(ha->host, NULL,
7287 qla4xxx_sysfs_ddb_is_non_persistent);
7288 if (dev) {
7289 ql4_printk(KERN_ERR, ha,
7290 "%s: A non-persistent entry %s found\n",
7291 __func__, dev->kobj.name);
7292 put_device(dev);
7293 goto exit_ddb_add;
7294 }
7295
7296 /* Index 0 and 1 are reserved for boot target entries */
7297 for (idx = 2; idx < max_ddbs; idx++) {
7298 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry,
7299 fw_ddb_entry_dma, idx))
7300 break;
7301 }
7302
7303 if (idx == max_ddbs)
7304 goto exit_ddb_add;
7305
7306 if (!strncasecmp("ipv6", buf, 4))
7307 options |= IPV6_DEFAULT_DDB_ENTRY;
7308
7309 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
7310 if (rval == QLA_ERROR)
7311 goto exit_ddb_add;
7312
7313 rval = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 1);
7314
7315 exit_ddb_add:
7316 if (fw_ddb_entry)
7317 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7318 fw_ddb_entry, fw_ddb_entry_dma);
7319 if (rval == QLA_SUCCESS)
7320 return idx;
7321 else
7322 return -EIO;
7323 }
7324
7325 /**
7326 * qla4xxx_sysfs_ddb_apply - write the target ddb contents to Flash
7327 * @fnode_sess: pointer to session attrs of flash ddb entry
7328 * @fnode_conn: pointer to connection attrs of flash ddb entry
7329 *
7330 * This writes the contents of target ddb buffer to Flash with a valid cookie
7331 * value in order to make the ddb entry persistent.
7332 **/
7333 static int qla4xxx_sysfs_ddb_apply(struct iscsi_bus_flash_session *fnode_sess,
7334 struct iscsi_bus_flash_conn *fnode_conn)
7335 {
7336 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7337 struct scsi_qla_host *ha = to_qla_host(shost);
7338 uint32_t dev_db_start_offset = FLASH_OFFSET_DB_INFO;
7339 struct dev_db_entry *fw_ddb_entry = NULL;
7340 dma_addr_t fw_ddb_entry_dma;
7341 uint32_t options = 0;
7342 int rval = 0;
7343
7344 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7345 &fw_ddb_entry_dma, GFP_KERNEL);
7346 if (!fw_ddb_entry) {
7347 DEBUG2(ql4_printk(KERN_ERR, ha,
7348 "%s: Unable to allocate dma buffer\n",
7349 __func__));
7350 rval = -ENOMEM;
7351 goto exit_ddb_apply;
7352 }
7353
7354 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7355 options |= IPV6_DEFAULT_DDB_ENTRY;
7356
7357 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
7358 if (rval == QLA_ERROR)
7359 goto exit_ddb_apply;
7360
7361 dev_db_start_offset += (fnode_sess->target_id *
7362 sizeof(*fw_ddb_entry));
7363
7364 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry);
7365 fw_ddb_entry->cookie = DDB_VALID_COOKIE;
7366
7367 rval = qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset,
7368 sizeof(*fw_ddb_entry), FLASH_OPT_RMW_COMMIT);
7369
7370 if (rval == QLA_SUCCESS) {
7371 fnode_sess->flash_state = DEV_DB_PERSISTENT;
7372 ql4_printk(KERN_INFO, ha,
7373 "%s: flash node %u of host %lu written to flash\n",
7374 __func__, fnode_sess->target_id, ha->host_no);
7375 } else {
7376 rval = -EIO;
7377 ql4_printk(KERN_ERR, ha,
7378 "%s: Error while writing flash node %u of host %lu to flash\n",
7379 __func__, fnode_sess->target_id, ha->host_no);
7380 }
7381
7382 exit_ddb_apply:
7383 if (fw_ddb_entry)
7384 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7385 fw_ddb_entry, fw_ddb_entry_dma);
7386 return rval;
7387 }
7388
7389 static ssize_t qla4xxx_sysfs_ddb_conn_open(struct scsi_qla_host *ha,
7390 struct dev_db_entry *fw_ddb_entry,
7391 uint16_t idx)
7392 {
7393 struct dev_db_entry *ddb_entry = NULL;
7394 dma_addr_t ddb_entry_dma;
7395 unsigned long wtime;
7396 uint32_t mbx_sts = 0;
7397 uint32_t state = 0, conn_err = 0;
7398 uint16_t tmo = 0;
7399 int ret = 0;
7400
7401 ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*ddb_entry),
7402 &ddb_entry_dma, GFP_KERNEL);
7403 if (!ddb_entry) {
7404 DEBUG2(ql4_printk(KERN_ERR, ha,
7405 "%s: Unable to allocate dma buffer\n",
7406 __func__));
7407 return QLA_ERROR;
7408 }
7409
7410 memcpy(ddb_entry, fw_ddb_entry, sizeof(*ddb_entry));
7411
7412 ret = qla4xxx_set_ddb_entry(ha, idx, ddb_entry_dma, &mbx_sts);
7413 if (ret != QLA_SUCCESS) {
7414 DEBUG2(ql4_printk(KERN_ERR, ha,
7415 "%s: Unable to set ddb entry for index %d\n",
7416 __func__, idx));
7417 goto exit_ddb_conn_open;
7418 }
7419
7420 qla4xxx_conn_open(ha, idx);
7421
7422 /* To ensure that sendtargets is done, wait for at least 12 secs */
7423 tmo = ((ha->def_timeout > LOGIN_TOV) &&
7424 (ha->def_timeout < LOGIN_TOV * 10) ?
7425 ha->def_timeout : LOGIN_TOV);
7426
7427 DEBUG2(ql4_printk(KERN_INFO, ha,
7428 "Default time to wait for login to ddb %d\n", tmo));
7429
7430 wtime = jiffies + (HZ * tmo);
7431 do {
7432 ret = qla4xxx_get_fwddb_entry(ha, idx, NULL, 0, NULL,
7433 NULL, &state, &conn_err, NULL,
7434 NULL);
7435 if (ret == QLA_ERROR)
7436 continue;
7437
7438 if (state == DDB_DS_NO_CONNECTION_ACTIVE ||
7439 state == DDB_DS_SESSION_FAILED)
7440 break;
7441
7442 schedule_timeout_uninterruptible(HZ / 10);
7443 } while (time_after(wtime, jiffies));
7444
7445 exit_ddb_conn_open:
7446 if (ddb_entry)
7447 dma_free_coherent(&ha->pdev->dev, sizeof(*ddb_entry),
7448 ddb_entry, ddb_entry_dma);
7449 return ret;
7450 }
7451
7452 static int qla4xxx_ddb_login_st(struct scsi_qla_host *ha,
7453 struct dev_db_entry *fw_ddb_entry,
7454 uint16_t target_id)
7455 {
7456 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
7457 struct list_head list_nt;
7458 uint16_t ddb_index;
7459 int ret = 0;
7460
7461 if (test_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags)) {
7462 ql4_printk(KERN_WARNING, ha,
7463 "%s: A discovery already in progress!\n", __func__);
7464 return QLA_ERROR;
7465 }
7466
7467 INIT_LIST_HEAD(&list_nt);
7468
7469 set_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags);
7470
7471 ret = qla4xxx_get_ddb_index(ha, &ddb_index);
7472 if (ret == QLA_ERROR)
7473 goto exit_login_st_clr_bit;
7474
7475 ret = qla4xxx_sysfs_ddb_conn_open(ha, fw_ddb_entry, ddb_index);
7476 if (ret == QLA_ERROR)
7477 goto exit_login_st;
7478
7479 qla4xxx_build_new_nt_list(ha, &list_nt, target_id);
7480
7481 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, &list_nt, list) {
7482 list_del_init(&ddb_idx->list);
7483 qla4xxx_clear_ddb_entry(ha, ddb_idx->fw_ddb_idx);
7484 vfree(ddb_idx);
7485 }
7486
7487 exit_login_st:
7488 if (qla4xxx_clear_ddb_entry(ha, ddb_index) == QLA_ERROR) {
7489 ql4_printk(KERN_ERR, ha,
7490 "Unable to clear DDB index = 0x%x\n", ddb_index);
7491 }
7492
7493 clear_bit(ddb_index, ha->ddb_idx_map);
7494
7495 exit_login_st_clr_bit:
7496 clear_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags);
7497 return ret;
7498 }
7499
7500 static int qla4xxx_ddb_login_nt(struct scsi_qla_host *ha,
7501 struct dev_db_entry *fw_ddb_entry,
7502 uint16_t idx)
7503 {
7504 int ret = QLA_ERROR;
7505
7506 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL);
7507 if (ret != QLA_SUCCESS)
7508 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER,
7509 idx);
7510 else
7511 ret = -EPERM;
7512
7513 return ret;
7514 }
7515
7516 /**
7517 * qla4xxx_sysfs_ddb_login - Login to the specified target
7518 * @fnode_sess: pointer to session attrs of flash ddb entry
7519 * @fnode_conn: pointer to connection attrs of flash ddb entry
7520 *
7521 * This logs in to the specified target
7522 **/
7523 static int qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess,
7524 struct iscsi_bus_flash_conn *fnode_conn)
7525 {
7526 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7527 struct scsi_qla_host *ha = to_qla_host(shost);
7528 struct dev_db_entry *fw_ddb_entry = NULL;
7529 dma_addr_t fw_ddb_entry_dma;
7530 uint32_t options = 0;
7531 int ret = 0;
7532
7533 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT) {
7534 ql4_printk(KERN_ERR, ha,
7535 "%s: Target info is not persistent\n", __func__);
7536 ret = -EIO;
7537 goto exit_ddb_login;
7538 }
7539
7540 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7541 &fw_ddb_entry_dma, GFP_KERNEL);
7542 if (!fw_ddb_entry) {
7543 DEBUG2(ql4_printk(KERN_ERR, ha,
7544 "%s: Unable to allocate dma buffer\n",
7545 __func__));
7546 ret = -ENOMEM;
7547 goto exit_ddb_login;
7548 }
7549
7550 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7551 options |= IPV6_DEFAULT_DDB_ENTRY;
7552
7553 ret = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
7554 if (ret == QLA_ERROR)
7555 goto exit_ddb_login;
7556
7557 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry);
7558 fw_ddb_entry->cookie = DDB_VALID_COOKIE;
7559
7560 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0)
7561 ret = qla4xxx_ddb_login_st(ha, fw_ddb_entry,
7562 fnode_sess->target_id);
7563 else
7564 ret = qla4xxx_ddb_login_nt(ha, fw_ddb_entry,
7565 fnode_sess->target_id);
7566
7567 if (ret > 0)
7568 ret = -EIO;
7569
7570 exit_ddb_login:
7571 if (fw_ddb_entry)
7572 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7573 fw_ddb_entry, fw_ddb_entry_dma);
7574 return ret;
7575 }
7576
7577 /**
7578 * qla4xxx_sysfs_ddb_logout_sid - Logout session for the specified target
7579 * @cls_sess: pointer to session to be logged out
7580 *
7581 * This performs session log out from the specified target
7582 **/
7583 static int qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess)
7584 {
7585 struct iscsi_session *sess;
7586 struct ddb_entry *ddb_entry = NULL;
7587 struct scsi_qla_host *ha;
7588 struct dev_db_entry *fw_ddb_entry = NULL;
7589 dma_addr_t fw_ddb_entry_dma;
7590 unsigned long flags;
7591 unsigned long wtime;
7592 uint32_t ddb_state;
7593 int options;
7594 int ret = 0;
7595
7596 sess = cls_sess->dd_data;
7597 ddb_entry = sess->dd_data;
7598 ha = ddb_entry->ha;
7599
7600 if (ddb_entry->ddb_type != FLASH_DDB) {
7601 ql4_printk(KERN_ERR, ha, "%s: Not a flash node session\n",
7602 __func__);
7603 ret = -ENXIO;
7604 goto exit_ddb_logout;
7605 }
7606
7607 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) {
7608 ql4_printk(KERN_ERR, ha,
7609 "%s: Logout from boot target entry is not permitted.\n",
7610 __func__);
7611 ret = -EPERM;
7612 goto exit_ddb_logout;
7613 }
7614
7615 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7616 &fw_ddb_entry_dma, GFP_KERNEL);
7617 if (!fw_ddb_entry) {
7618 ql4_printk(KERN_ERR, ha,
7619 "%s: Unable to allocate dma buffer\n", __func__);
7620 ret = -ENOMEM;
7621 goto exit_ddb_logout;
7622 }
7623
7624 if (test_and_set_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags))
7625 goto ddb_logout_init;
7626
7627 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
7628 fw_ddb_entry, fw_ddb_entry_dma,
7629 NULL, NULL, &ddb_state, NULL,
7630 NULL, NULL);
7631 if (ret == QLA_ERROR)
7632 goto ddb_logout_init;
7633
7634 if (ddb_state == DDB_DS_SESSION_ACTIVE)
7635 goto ddb_logout_init;
7636
7637 /* wait until next relogin is triggered using DF_RELOGIN and
7638 * clear DF_RELOGIN to avoid invocation of further relogin
7639 */
7640 wtime = jiffies + (HZ * RELOGIN_TOV);
7641 do {
7642 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags))
7643 goto ddb_logout_init;
7644
7645 schedule_timeout_uninterruptible(HZ);
7646 } while ((time_after(wtime, jiffies)));
7647
7648 ddb_logout_init:
7649 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY);
7650 atomic_set(&ddb_entry->relogin_timer, 0);
7651
7652 options = LOGOUT_OPTION_CLOSE_SESSION;
7653 qla4xxx_session_logout_ddb(ha, ddb_entry, options);
7654
7655 memset(fw_ddb_entry, 0, sizeof(*fw_ddb_entry));
7656 wtime = jiffies + (HZ * LOGOUT_TOV);
7657 do {
7658 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
7659 fw_ddb_entry, fw_ddb_entry_dma,
7660 NULL, NULL, &ddb_state, NULL,
7661 NULL, NULL);
7662 if (ret == QLA_ERROR)
7663 goto ddb_logout_clr_sess;
7664
7665 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) ||
7666 (ddb_state == DDB_DS_SESSION_FAILED))
7667 goto ddb_logout_clr_sess;
7668
7669 schedule_timeout_uninterruptible(HZ);
7670 } while ((time_after(wtime, jiffies)));
7671
7672 ddb_logout_clr_sess:
7673 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
7674 /*
7675 * we have decremented the reference count of the driver
7676 * when we setup the session to have the driver unload
7677 * to be seamless without actually destroying the
7678 * session
7679 **/
7680 try_module_get(qla4xxx_iscsi_transport.owner);
7681 iscsi_destroy_endpoint(ddb_entry->conn->ep);
7682
7683 spin_lock_irqsave(&ha->hardware_lock, flags);
7684 qla4xxx_free_ddb(ha, ddb_entry);
7685 clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map);
7686 spin_unlock_irqrestore(&ha->hardware_lock, flags);
7687
7688 iscsi_session_teardown(ddb_entry->sess);
7689
7690 clear_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags);
7691 ret = QLA_SUCCESS;
7692
7693 exit_ddb_logout:
7694 if (fw_ddb_entry)
7695 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7696 fw_ddb_entry, fw_ddb_entry_dma);
7697 return ret;
7698 }
7699
7700 /**
7701 * qla4xxx_sysfs_ddb_logout - Logout from the specified target
7702 * @fnode_sess: pointer to session attrs of flash ddb entry
7703 * @fnode_conn: pointer to connection attrs of flash ddb entry
7704 *
7705 * This performs log out from the specified target
7706 **/
7707 static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess,
7708 struct iscsi_bus_flash_conn *fnode_conn)
7709 {
7710 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7711 struct scsi_qla_host *ha = to_qla_host(shost);
7712 struct ql4_tuple_ddb *flash_tddb = NULL;
7713 struct ql4_tuple_ddb *tmp_tddb = NULL;
7714 struct dev_db_entry *fw_ddb_entry = NULL;
7715 struct ddb_entry *ddb_entry = NULL;
7716 dma_addr_t fw_ddb_dma;
7717 uint32_t next_idx = 0;
7718 uint32_t state = 0, conn_err = 0;
7719 uint16_t conn_id = 0;
7720 int idx, index;
7721 int status, ret = 0;
7722
7723 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
7724 &fw_ddb_dma);
7725 if (fw_ddb_entry == NULL) {
7726 ql4_printk(KERN_ERR, ha, "%s:Out of memory\n", __func__);
7727 ret = -ENOMEM;
7728 goto exit_ddb_logout;
7729 }
7730
7731 flash_tddb = vzalloc(sizeof(*flash_tddb));
7732 if (!flash_tddb) {
7733 ql4_printk(KERN_WARNING, ha,
7734 "%s:Memory Allocation failed.\n", __func__);
7735 ret = -ENOMEM;
7736 goto exit_ddb_logout;
7737 }
7738
7739 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
7740 if (!tmp_tddb) {
7741 ql4_printk(KERN_WARNING, ha,
7742 "%s:Memory Allocation failed.\n", __func__);
7743 ret = -ENOMEM;
7744 goto exit_ddb_logout;
7745 }
7746
7747 if (!fnode_sess->targetname) {
7748 ql4_printk(KERN_ERR, ha,
7749 "%s:Cannot logout from SendTarget entry\n",
7750 __func__);
7751 ret = -EPERM;
7752 goto exit_ddb_logout;
7753 }
7754
7755 if (fnode_sess->is_boot_target) {
7756 ql4_printk(KERN_ERR, ha,
7757 "%s: Logout from boot target entry is not permitted.\n",
7758 __func__);
7759 ret = -EPERM;
7760 goto exit_ddb_logout;
7761 }
7762
7763 strlcpy(flash_tddb->iscsi_name, fnode_sess->targetname,
7764 ISCSI_NAME_SIZE);
7765
7766 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7767 sprintf(flash_tddb->ip_addr, "%pI6", fnode_conn->ipaddress);
7768 else
7769 sprintf(flash_tddb->ip_addr, "%pI4", fnode_conn->ipaddress);
7770
7771 flash_tddb->tpgt = fnode_sess->tpgt;
7772 flash_tddb->port = fnode_conn->port;
7773
7774 COPY_ISID(flash_tddb->isid, fnode_sess->isid);
7775
7776 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
7777 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
7778 if (ddb_entry == NULL)
7779 continue;
7780
7781 if (ddb_entry->ddb_type != FLASH_DDB)
7782 continue;
7783
7784 index = ddb_entry->sess->target_id;
7785 status = qla4xxx_get_fwddb_entry(ha, index, fw_ddb_entry,
7786 fw_ddb_dma, NULL, &next_idx,
7787 &state, &conn_err, NULL,
7788 &conn_id);
7789 if (status == QLA_ERROR) {
7790 ret = -ENOMEM;
7791 break;
7792 }
7793
7794 qla4xxx_convert_param_ddb(fw_ddb_entry, tmp_tddb, NULL);
7795
7796 status = qla4xxx_compare_tuple_ddb(ha, flash_tddb, tmp_tddb,
7797 true);
7798 if (status == QLA_SUCCESS) {
7799 ret = qla4xxx_sysfs_ddb_logout_sid(ddb_entry->sess);
7800 break;
7801 }
7802 }
7803
7804 if (idx == MAX_DDB_ENTRIES)
7805 ret = -ESRCH;
7806
7807 exit_ddb_logout:
7808 if (flash_tddb)
7809 vfree(flash_tddb);
7810 if (tmp_tddb)
7811 vfree(tmp_tddb);
7812 if (fw_ddb_entry)
7813 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
7814
7815 return ret;
7816 }
7817
7818 static int
7819 qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session *fnode_sess,
7820 int param, char *buf)
7821 {
7822 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7823 struct scsi_qla_host *ha = to_qla_host(shost);
7824 struct iscsi_bus_flash_conn *fnode_conn;
7825 struct ql4_chap_table chap_tbl;
7826 struct device *dev;
7827 int parent_type;
7828 int rc = 0;
7829
7830 dev = iscsi_find_flashnode_conn(fnode_sess);
7831 if (!dev)
7832 return -EIO;
7833
7834 fnode_conn = iscsi_dev_to_flash_conn(dev);
7835
7836 switch (param) {
7837 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6:
7838 rc = sprintf(buf, "%u\n", fnode_conn->is_fw_assigned_ipv6);
7839 break;
7840 case ISCSI_FLASHNODE_PORTAL_TYPE:
7841 rc = sprintf(buf, "%s\n", fnode_sess->portal_type);
7842 break;
7843 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE:
7844 rc = sprintf(buf, "%u\n", fnode_sess->auto_snd_tgt_disable);
7845 break;
7846 case ISCSI_FLASHNODE_DISCOVERY_SESS:
7847 rc = sprintf(buf, "%u\n", fnode_sess->discovery_sess);
7848 break;
7849 case ISCSI_FLASHNODE_ENTRY_EN:
7850 rc = sprintf(buf, "%u\n", fnode_sess->entry_state);
7851 break;
7852 case ISCSI_FLASHNODE_HDR_DGST_EN:
7853 rc = sprintf(buf, "%u\n", fnode_conn->hdrdgst_en);
7854 break;
7855 case ISCSI_FLASHNODE_DATA_DGST_EN:
7856 rc = sprintf(buf, "%u\n", fnode_conn->datadgst_en);
7857 break;
7858 case ISCSI_FLASHNODE_IMM_DATA_EN:
7859 rc = sprintf(buf, "%u\n", fnode_sess->imm_data_en);
7860 break;
7861 case ISCSI_FLASHNODE_INITIAL_R2T_EN:
7862 rc = sprintf(buf, "%u\n", fnode_sess->initial_r2t_en);
7863 break;
7864 case ISCSI_FLASHNODE_DATASEQ_INORDER:
7865 rc = sprintf(buf, "%u\n", fnode_sess->dataseq_inorder_en);
7866 break;
7867 case ISCSI_FLASHNODE_PDU_INORDER:
7868 rc = sprintf(buf, "%u\n", fnode_sess->pdu_inorder_en);
7869 break;
7870 case ISCSI_FLASHNODE_CHAP_AUTH_EN:
7871 rc = sprintf(buf, "%u\n", fnode_sess->chap_auth_en);
7872 break;
7873 case ISCSI_FLASHNODE_SNACK_REQ_EN:
7874 rc = sprintf(buf, "%u\n", fnode_conn->snack_req_en);
7875 break;
7876 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN:
7877 rc = sprintf(buf, "%u\n", fnode_sess->discovery_logout_en);
7878 break;
7879 case ISCSI_FLASHNODE_BIDI_CHAP_EN:
7880 rc = sprintf(buf, "%u\n", fnode_sess->bidi_chap_en);
7881 break;
7882 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL:
7883 rc = sprintf(buf, "%u\n", fnode_sess->discovery_auth_optional);
7884 break;
7885 case ISCSI_FLASHNODE_ERL:
7886 rc = sprintf(buf, "%u\n", fnode_sess->erl);
7887 break;
7888 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT:
7889 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_stat);
7890 break;
7891 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE:
7892 rc = sprintf(buf, "%u\n", fnode_conn->tcp_nagle_disable);
7893 break;
7894 case ISCSI_FLASHNODE_TCP_WSF_DISABLE:
7895 rc = sprintf(buf, "%u\n", fnode_conn->tcp_wsf_disable);
7896 break;
7897 case ISCSI_FLASHNODE_TCP_TIMER_SCALE:
7898 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timer_scale);
7899 break;
7900 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN:
7901 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_en);
7902 break;
7903 case ISCSI_FLASHNODE_IP_FRAG_DISABLE:
7904 rc = sprintf(buf, "%u\n", fnode_conn->fragment_disable);
7905 break;
7906 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH:
7907 rc = sprintf(buf, "%u\n", fnode_conn->max_recv_dlength);
7908 break;
7909 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH:
7910 rc = sprintf(buf, "%u\n", fnode_conn->max_xmit_dlength);
7911 break;
7912 case ISCSI_FLASHNODE_FIRST_BURST:
7913 rc = sprintf(buf, "%u\n", fnode_sess->first_burst);
7914 break;
7915 case ISCSI_FLASHNODE_DEF_TIME2WAIT:
7916 rc = sprintf(buf, "%u\n", fnode_sess->time2wait);
7917 break;
7918 case ISCSI_FLASHNODE_DEF_TIME2RETAIN:
7919 rc = sprintf(buf, "%u\n", fnode_sess->time2retain);
7920 break;
7921 case ISCSI_FLASHNODE_MAX_R2T:
7922 rc = sprintf(buf, "%u\n", fnode_sess->max_r2t);
7923 break;
7924 case ISCSI_FLASHNODE_KEEPALIVE_TMO:
7925 rc = sprintf(buf, "%u\n", fnode_conn->keepalive_timeout);
7926 break;
7927 case ISCSI_FLASHNODE_ISID:
7928 rc = sprintf(buf, "%02x%02x%02x%02x%02x%02x\n",
7929 fnode_sess->isid[0], fnode_sess->isid[1],
7930 fnode_sess->isid[2], fnode_sess->isid[3],
7931 fnode_sess->isid[4], fnode_sess->isid[5]);
7932 break;
7933 case ISCSI_FLASHNODE_TSID:
7934 rc = sprintf(buf, "%u\n", fnode_sess->tsid);
7935 break;
7936 case ISCSI_FLASHNODE_PORT:
7937 rc = sprintf(buf, "%d\n", fnode_conn->port);
7938 break;
7939 case ISCSI_FLASHNODE_MAX_BURST:
7940 rc = sprintf(buf, "%u\n", fnode_sess->max_burst);
7941 break;
7942 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO:
7943 rc = sprintf(buf, "%u\n",
7944 fnode_sess->default_taskmgmt_timeout);
7945 break;
7946 case ISCSI_FLASHNODE_IPADDR:
7947 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7948 rc = sprintf(buf, "%pI6\n", fnode_conn->ipaddress);
7949 else
7950 rc = sprintf(buf, "%pI4\n", fnode_conn->ipaddress);
7951 break;
7952 case ISCSI_FLASHNODE_ALIAS:
7953 if (fnode_sess->targetalias)
7954 rc = sprintf(buf, "%s\n", fnode_sess->targetalias);
7955 else
7956 rc = sprintf(buf, "\n");
7957 break;
7958 case ISCSI_FLASHNODE_REDIRECT_IPADDR:
7959 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7960 rc = sprintf(buf, "%pI6\n",
7961 fnode_conn->redirect_ipaddr);
7962 else
7963 rc = sprintf(buf, "%pI4\n",
7964 fnode_conn->redirect_ipaddr);
7965 break;
7966 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE:
7967 rc = sprintf(buf, "%u\n", fnode_conn->max_segment_size);
7968 break;
7969 case ISCSI_FLASHNODE_LOCAL_PORT:
7970 rc = sprintf(buf, "%u\n", fnode_conn->local_port);
7971 break;
7972 case ISCSI_FLASHNODE_IPV4_TOS:
7973 rc = sprintf(buf, "%u\n", fnode_conn->ipv4_tos);
7974 break;
7975 case ISCSI_FLASHNODE_IPV6_TC:
7976 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7977 rc = sprintf(buf, "%u\n",
7978 fnode_conn->ipv6_traffic_class);
7979 else
7980 rc = sprintf(buf, "\n");
7981 break;
7982 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL:
7983 rc = sprintf(buf, "%u\n", fnode_conn->ipv6_flow_label);
7984 break;
7985 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6:
7986 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7987 rc = sprintf(buf, "%pI6\n",
7988 fnode_conn->link_local_ipv6_addr);
7989 else
7990 rc = sprintf(buf, "\n");
7991 break;
7992 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX:
7993 rc = sprintf(buf, "%u\n", fnode_sess->discovery_parent_idx);
7994 break;
7995 case ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE:
7996 if (fnode_sess->discovery_parent_type == DDB_ISNS)
7997 parent_type = ISCSI_DISC_PARENT_ISNS;
7998 else if (fnode_sess->discovery_parent_type == DDB_NO_LINK)
7999 parent_type = ISCSI_DISC_PARENT_UNKNOWN;
8000 else if (fnode_sess->discovery_parent_type < MAX_DDB_ENTRIES)
8001 parent_type = ISCSI_DISC_PARENT_SENDTGT;
8002 else
8003 parent_type = ISCSI_DISC_PARENT_UNKNOWN;
8004
8005 rc = sprintf(buf, "%s\n",
8006 iscsi_get_discovery_parent_name(parent_type));
8007 break;
8008 case ISCSI_FLASHNODE_NAME:
8009 if (fnode_sess->targetname)
8010 rc = sprintf(buf, "%s\n", fnode_sess->targetname);
8011 else
8012 rc = sprintf(buf, "\n");
8013 break;
8014 case ISCSI_FLASHNODE_TPGT:
8015 rc = sprintf(buf, "%u\n", fnode_sess->tpgt);
8016 break;
8017 case ISCSI_FLASHNODE_TCP_XMIT_WSF:
8018 rc = sprintf(buf, "%u\n", fnode_conn->tcp_xmit_wsf);
8019 break;
8020 case ISCSI_FLASHNODE_TCP_RECV_WSF:
8021 rc = sprintf(buf, "%u\n", fnode_conn->tcp_recv_wsf);
8022 break;
8023 case ISCSI_FLASHNODE_CHAP_OUT_IDX:
8024 rc = sprintf(buf, "%u\n", fnode_sess->chap_out_idx);
8025 break;
8026 case ISCSI_FLASHNODE_USERNAME:
8027 if (fnode_sess->chap_auth_en) {
8028 qla4xxx_get_uni_chap_at_index(ha,
8029 chap_tbl.name,
8030 chap_tbl.secret,
8031 fnode_sess->chap_out_idx);
8032 rc = sprintf(buf, "%s\n", chap_tbl.name);
8033 } else {
8034 rc = sprintf(buf, "\n");
8035 }
8036 break;
8037 case ISCSI_FLASHNODE_PASSWORD:
8038 if (fnode_sess->chap_auth_en) {
8039 qla4xxx_get_uni_chap_at_index(ha,
8040 chap_tbl.name,
8041 chap_tbl.secret,
8042 fnode_sess->chap_out_idx);
8043 rc = sprintf(buf, "%s\n", chap_tbl.secret);
8044 } else {
8045 rc = sprintf(buf, "\n");
8046 }
8047 break;
8048 case ISCSI_FLASHNODE_STATSN:
8049 rc = sprintf(buf, "%u\n", fnode_conn->statsn);
8050 break;
8051 case ISCSI_FLASHNODE_EXP_STATSN:
8052 rc = sprintf(buf, "%u\n", fnode_conn->exp_statsn);
8053 break;
8054 case ISCSI_FLASHNODE_IS_BOOT_TGT:
8055 rc = sprintf(buf, "%u\n", fnode_sess->is_boot_target);
8056 break;
8057 default:
8058 rc = -ENOSYS;
8059 break;
8060 }
8061
8062 put_device(dev);
8063 return rc;
8064 }
8065
8066 /**
8067 * qla4xxx_sysfs_ddb_set_param - Set parameter for firmware DDB entry
8068 * @fnode_sess: pointer to session attrs of flash ddb entry
8069 * @fnode_conn: pointer to connection attrs of flash ddb entry
8070 * @data: Parameters and their values to update
8071 * @len: len of data
8072 *
8073 * This sets the parameter of flash ddb entry and writes them to flash
8074 **/
8075 static int
8076 qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess,
8077 struct iscsi_bus_flash_conn *fnode_conn,
8078 void *data, int len)
8079 {
8080 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
8081 struct scsi_qla_host *ha = to_qla_host(shost);
8082 struct iscsi_flashnode_param_info *fnode_param;
8083 struct ql4_chap_table chap_tbl;
8084 struct nlattr *attr;
8085 uint16_t chap_out_idx = INVALID_ENTRY;
8086 int rc = QLA_ERROR;
8087 uint32_t rem = len;
8088
8089 memset((void *)&chap_tbl, 0, sizeof(chap_tbl));
8090 nla_for_each_attr(attr, data, len, rem) {
8091 fnode_param = nla_data(attr);
8092
8093 switch (fnode_param->param) {
8094 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6:
8095 fnode_conn->is_fw_assigned_ipv6 = fnode_param->value[0];
8096 break;
8097 case ISCSI_FLASHNODE_PORTAL_TYPE:
8098 memcpy(fnode_sess->portal_type, fnode_param->value,
8099 strlen(fnode_sess->portal_type));
8100 break;
8101 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE:
8102 fnode_sess->auto_snd_tgt_disable =
8103 fnode_param->value[0];
8104 break;
8105 case ISCSI_FLASHNODE_DISCOVERY_SESS:
8106 fnode_sess->discovery_sess = fnode_param->value[0];
8107 break;
8108 case ISCSI_FLASHNODE_ENTRY_EN:
8109 fnode_sess->entry_state = fnode_param->value[0];
8110 break;
8111 case ISCSI_FLASHNODE_HDR_DGST_EN:
8112 fnode_conn->hdrdgst_en = fnode_param->value[0];
8113 break;
8114 case ISCSI_FLASHNODE_DATA_DGST_EN:
8115 fnode_conn->datadgst_en = fnode_param->value[0];
8116 break;
8117 case ISCSI_FLASHNODE_IMM_DATA_EN:
8118 fnode_sess->imm_data_en = fnode_param->value[0];
8119 break;
8120 case ISCSI_FLASHNODE_INITIAL_R2T_EN:
8121 fnode_sess->initial_r2t_en = fnode_param->value[0];
8122 break;
8123 case ISCSI_FLASHNODE_DATASEQ_INORDER:
8124 fnode_sess->dataseq_inorder_en = fnode_param->value[0];
8125 break;
8126 case ISCSI_FLASHNODE_PDU_INORDER:
8127 fnode_sess->pdu_inorder_en = fnode_param->value[0];
8128 break;
8129 case ISCSI_FLASHNODE_CHAP_AUTH_EN:
8130 fnode_sess->chap_auth_en = fnode_param->value[0];
8131 /* Invalidate chap index if chap auth is disabled */
8132 if (!fnode_sess->chap_auth_en)
8133 fnode_sess->chap_out_idx = INVALID_ENTRY;
8134
8135 break;
8136 case ISCSI_FLASHNODE_SNACK_REQ_EN:
8137 fnode_conn->snack_req_en = fnode_param->value[0];
8138 break;
8139 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN:
8140 fnode_sess->discovery_logout_en = fnode_param->value[0];
8141 break;
8142 case ISCSI_FLASHNODE_BIDI_CHAP_EN:
8143 fnode_sess->bidi_chap_en = fnode_param->value[0];
8144 break;
8145 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL:
8146 fnode_sess->discovery_auth_optional =
8147 fnode_param->value[0];
8148 break;
8149 case ISCSI_FLASHNODE_ERL:
8150 fnode_sess->erl = fnode_param->value[0];
8151 break;
8152 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT:
8153 fnode_conn->tcp_timestamp_stat = fnode_param->value[0];
8154 break;
8155 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE:
8156 fnode_conn->tcp_nagle_disable = fnode_param->value[0];
8157 break;
8158 case ISCSI_FLASHNODE_TCP_WSF_DISABLE:
8159 fnode_conn->tcp_wsf_disable = fnode_param->value[0];
8160 break;
8161 case ISCSI_FLASHNODE_TCP_TIMER_SCALE:
8162 fnode_conn->tcp_timer_scale = fnode_param->value[0];
8163 break;
8164 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN:
8165 fnode_conn->tcp_timestamp_en = fnode_param->value[0];
8166 break;
8167 case ISCSI_FLASHNODE_IP_FRAG_DISABLE:
8168 fnode_conn->fragment_disable = fnode_param->value[0];
8169 break;
8170 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH:
8171 fnode_conn->max_recv_dlength =
8172 *(unsigned *)fnode_param->value;
8173 break;
8174 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH:
8175 fnode_conn->max_xmit_dlength =
8176 *(unsigned *)fnode_param->value;
8177 break;
8178 case ISCSI_FLASHNODE_FIRST_BURST:
8179 fnode_sess->first_burst =
8180 *(unsigned *)fnode_param->value;
8181 break;
8182 case ISCSI_FLASHNODE_DEF_TIME2WAIT:
8183 fnode_sess->time2wait = *(uint16_t *)fnode_param->value;
8184 break;
8185 case ISCSI_FLASHNODE_DEF_TIME2RETAIN:
8186 fnode_sess->time2retain =
8187 *(uint16_t *)fnode_param->value;
8188 break;
8189 case ISCSI_FLASHNODE_MAX_R2T:
8190 fnode_sess->max_r2t =
8191 *(uint16_t *)fnode_param->value;
8192 break;
8193 case ISCSI_FLASHNODE_KEEPALIVE_TMO:
8194 fnode_conn->keepalive_timeout =
8195 *(uint16_t *)fnode_param->value;
8196 break;
8197 case ISCSI_FLASHNODE_ISID:
8198 memcpy(fnode_sess->isid, fnode_param->value,
8199 sizeof(fnode_sess->isid));
8200 break;
8201 case ISCSI_FLASHNODE_TSID:
8202 fnode_sess->tsid = *(uint16_t *)fnode_param->value;
8203 break;
8204 case ISCSI_FLASHNODE_PORT:
8205 fnode_conn->port = *(uint16_t *)fnode_param->value;
8206 break;
8207 case ISCSI_FLASHNODE_MAX_BURST:
8208 fnode_sess->max_burst = *(unsigned *)fnode_param->value;
8209 break;
8210 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO:
8211 fnode_sess->default_taskmgmt_timeout =
8212 *(uint16_t *)fnode_param->value;
8213 break;
8214 case ISCSI_FLASHNODE_IPADDR:
8215 memcpy(fnode_conn->ipaddress, fnode_param->value,
8216 IPv6_ADDR_LEN);
8217 break;
8218 case ISCSI_FLASHNODE_ALIAS:
8219 rc = iscsi_switch_str_param(&fnode_sess->targetalias,
8220 (char *)fnode_param->value);
8221 break;
8222 case ISCSI_FLASHNODE_REDIRECT_IPADDR:
8223 memcpy(fnode_conn->redirect_ipaddr, fnode_param->value,
8224 IPv6_ADDR_LEN);
8225 break;
8226 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE:
8227 fnode_conn->max_segment_size =
8228 *(unsigned *)fnode_param->value;
8229 break;
8230 case ISCSI_FLASHNODE_LOCAL_PORT:
8231 fnode_conn->local_port =
8232 *(uint16_t *)fnode_param->value;
8233 break;
8234 case ISCSI_FLASHNODE_IPV4_TOS:
8235 fnode_conn->ipv4_tos = fnode_param->value[0];
8236 break;
8237 case ISCSI_FLASHNODE_IPV6_TC:
8238 fnode_conn->ipv6_traffic_class = fnode_param->value[0];
8239 break;
8240 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL:
8241 fnode_conn->ipv6_flow_label = fnode_param->value[0];
8242 break;
8243 case ISCSI_FLASHNODE_NAME:
8244 rc = iscsi_switch_str_param(&fnode_sess->targetname,
8245 (char *)fnode_param->value);
8246 break;
8247 case ISCSI_FLASHNODE_TPGT:
8248 fnode_sess->tpgt = *(uint16_t *)fnode_param->value;
8249 break;
8250 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6:
8251 memcpy(fnode_conn->link_local_ipv6_addr,
8252 fnode_param->value, IPv6_ADDR_LEN);
8253 break;
8254 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX:
8255 fnode_sess->discovery_parent_idx =
8256 *(uint16_t *)fnode_param->value;
8257 break;
8258 case ISCSI_FLASHNODE_TCP_XMIT_WSF:
8259 fnode_conn->tcp_xmit_wsf =
8260 *(uint8_t *)fnode_param->value;
8261 break;
8262 case ISCSI_FLASHNODE_TCP_RECV_WSF:
8263 fnode_conn->tcp_recv_wsf =
8264 *(uint8_t *)fnode_param->value;
8265 break;
8266 case ISCSI_FLASHNODE_STATSN:
8267 fnode_conn->statsn = *(uint32_t *)fnode_param->value;
8268 break;
8269 case ISCSI_FLASHNODE_EXP_STATSN:
8270 fnode_conn->exp_statsn =
8271 *(uint32_t *)fnode_param->value;
8272 break;
8273 case ISCSI_FLASHNODE_CHAP_OUT_IDX:
8274 chap_out_idx = *(uint16_t *)fnode_param->value;
8275 if (!qla4xxx_get_uni_chap_at_index(ha,
8276 chap_tbl.name,
8277 chap_tbl.secret,
8278 chap_out_idx)) {
8279 fnode_sess->chap_out_idx = chap_out_idx;
8280 /* Enable chap auth if chap index is valid */
8281 fnode_sess->chap_auth_en = QL4_PARAM_ENABLE;
8282 }
8283 break;
8284 default:
8285 ql4_printk(KERN_ERR, ha,
8286 "%s: No such sysfs attribute\n", __func__);
8287 rc = -ENOSYS;
8288 goto exit_set_param;
8289 }
8290 }
8291
8292 rc = qla4xxx_sysfs_ddb_apply(fnode_sess, fnode_conn);
8293
8294 exit_set_param:
8295 return rc;
8296 }
8297
8298 /**
8299 * qla4xxx_sysfs_ddb_delete - Delete firmware DDB entry
8300 * @fnode_sess: pointer to session attrs of flash ddb entry
8301 *
8302 * This invalidates the flash ddb entry at the given index
8303 **/
8304 static int qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess)
8305 {
8306 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
8307 struct scsi_qla_host *ha = to_qla_host(shost);
8308 uint32_t dev_db_start_offset;
8309 uint32_t dev_db_end_offset;
8310 struct dev_db_entry *fw_ddb_entry = NULL;
8311 dma_addr_t fw_ddb_entry_dma;
8312 uint16_t *ddb_cookie = NULL;
8313 size_t ddb_size = 0;
8314 void *pddb = NULL;
8315 int target_id;
8316 int rc = 0;
8317
8318 if (fnode_sess->is_boot_target) {
8319 rc = -EPERM;
8320 DEBUG2(ql4_printk(KERN_ERR, ha,
8321 "%s: Deletion of boot target entry is not permitted.\n",
8322 __func__));
8323 goto exit_ddb_del;
8324 }
8325
8326 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT)
8327 goto sysfs_ddb_del;
8328
8329 if (is_qla40XX(ha)) {
8330 dev_db_start_offset = FLASH_OFFSET_DB_INFO;
8331 dev_db_end_offset = FLASH_OFFSET_DB_END;
8332 dev_db_start_offset += (fnode_sess->target_id *
8333 sizeof(*fw_ddb_entry));
8334 ddb_size = sizeof(*fw_ddb_entry);
8335 } else {
8336 dev_db_start_offset = FLASH_RAW_ACCESS_ADDR +
8337 (ha->hw.flt_region_ddb << 2);
8338 /* flt_ddb_size is DDB table size for both ports
8339 * so divide it by 2 to calculate the offset for second port
8340 */
8341 if (ha->port_num == 1)
8342 dev_db_start_offset += (ha->hw.flt_ddb_size / 2);
8343
8344 dev_db_end_offset = dev_db_start_offset +
8345 (ha->hw.flt_ddb_size / 2);
8346
8347 dev_db_start_offset += (fnode_sess->target_id *
8348 sizeof(*fw_ddb_entry));
8349 dev_db_start_offset += offsetof(struct dev_db_entry, cookie);
8350
8351 ddb_size = sizeof(*ddb_cookie);
8352 }
8353
8354 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: start offset=%u, end offset=%u\n",
8355 __func__, dev_db_start_offset, dev_db_end_offset));
8356
8357 if (dev_db_start_offset > dev_db_end_offset) {
8358 rc = -EIO;
8359 DEBUG2(ql4_printk(KERN_ERR, ha, "%s:Invalid DDB index %u\n",
8360 __func__, fnode_sess->target_id));
8361 goto exit_ddb_del;
8362 }
8363
8364 pddb = dma_alloc_coherent(&ha->pdev->dev, ddb_size,
8365 &fw_ddb_entry_dma, GFP_KERNEL);
8366 if (!pddb) {
8367 rc = -ENOMEM;
8368 DEBUG2(ql4_printk(KERN_ERR, ha,
8369 "%s: Unable to allocate dma buffer\n",
8370 __func__));
8371 goto exit_ddb_del;
8372 }
8373
8374 if (is_qla40XX(ha)) {
8375 fw_ddb_entry = pddb;
8376 memset(fw_ddb_entry, 0, ddb_size);
8377 ddb_cookie = &fw_ddb_entry->cookie;
8378 } else {
8379 ddb_cookie = pddb;
8380 }
8381
8382 /* invalidate the cookie */
8383 *ddb_cookie = 0xFFEE;
8384 qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset,
8385 ddb_size, FLASH_OPT_RMW_COMMIT);
8386
8387 sysfs_ddb_del:
8388 target_id = fnode_sess->target_id;
8389 iscsi_destroy_flashnode_sess(fnode_sess);
8390 ql4_printk(KERN_INFO, ha,
8391 "%s: session and conn entries for flashnode %u of host %lu deleted\n",
8392 __func__, target_id, ha->host_no);
8393 exit_ddb_del:
8394 if (pddb)
8395 dma_free_coherent(&ha->pdev->dev, ddb_size, pddb,
8396 fw_ddb_entry_dma);
8397 return rc;
8398 }
8399
8400 /**
8401 * qla4xxx_sysfs_ddb_export - Create sysfs entries for firmware DDBs
8402 * @ha: pointer to adapter structure
8403 *
8404 * Export the firmware DDB for all send targets and normal targets to sysfs.
8405 **/
8406 int qla4xxx_sysfs_ddb_export(struct scsi_qla_host *ha)
8407 {
8408 struct dev_db_entry *fw_ddb_entry = NULL;
8409 dma_addr_t fw_ddb_entry_dma;
8410 uint16_t max_ddbs;
8411 uint16_t idx = 0;
8412 int ret = QLA_SUCCESS;
8413
8414 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev,
8415 sizeof(*fw_ddb_entry),
8416 &fw_ddb_entry_dma, GFP_KERNEL);
8417 if (!fw_ddb_entry) {
8418 DEBUG2(ql4_printk(KERN_ERR, ha,
8419 "%s: Unable to allocate dma buffer\n",
8420 __func__));
8421 return -ENOMEM;
8422 }
8423
8424 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES :
8425 MAX_DEV_DB_ENTRIES;
8426
8427 for (idx = 0; idx < max_ddbs; idx++) {
8428 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry, fw_ddb_entry_dma,
8429 idx))
8430 continue;
8431
8432 ret = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 0);
8433 if (ret) {
8434 ret = -EIO;
8435 break;
8436 }
8437 }
8438
8439 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry,
8440 fw_ddb_entry_dma);
8441
8442 return ret;
8443 }
8444
8445 static void qla4xxx_sysfs_ddb_remove(struct scsi_qla_host *ha)
8446 {
8447 iscsi_destroy_all_flashnode(ha->host);
8448 }
8449
8450 /**
8451 * qla4xxx_build_ddb_list - Build ddb list and setup sessions
8452 * @ha: pointer to adapter structure
8453 * @is_reset: Is this init path or reset path
8454 *
8455 * Create a list of sendtargets (st) from firmware DDBs, issue send targets
8456 * using connection open, then create the list of normal targets (nt)
8457 * from firmware DDBs. Based on the list of nt setup session and connection
8458 * objects.
8459 **/
8460 void qla4xxx_build_ddb_list(struct scsi_qla_host *ha, int is_reset)
8461 {
8462 uint16_t tmo = 0;
8463 struct list_head list_st, list_nt;
8464 struct qla_ddb_index *st_ddb_idx, *st_ddb_idx_tmp;
8465 unsigned long wtime;
8466
8467 if (!test_bit(AF_LINK_UP, &ha->flags)) {
8468 set_bit(AF_BUILD_DDB_LIST, &ha->flags);
8469 ha->is_reset = is_reset;
8470 return;
8471 }
8472
8473 INIT_LIST_HEAD(&list_st);
8474 INIT_LIST_HEAD(&list_nt);
8475
8476 qla4xxx_build_st_list(ha, &list_st);
8477
8478 /* Before issuing conn open mbox, ensure all IPs states are configured
8479 * Note, conn open fails if IPs are not configured
8480 */
8481 qla4xxx_wait_for_ip_configuration(ha);
8482
8483 /* Go thru the STs and fire the sendtargets by issuing conn open mbx */
8484 list_for_each_entry_safe(st_ddb_idx, st_ddb_idx_tmp, &list_st, list) {
8485 qla4xxx_conn_open(ha, st_ddb_idx->fw_ddb_idx);
8486 }
8487
8488 /* Wait to ensure all sendtargets are done for min 12 sec wait */
8489 tmo = ((ha->def_timeout > LOGIN_TOV) &&
8490 (ha->def_timeout < LOGIN_TOV * 10) ?
8491 ha->def_timeout : LOGIN_TOV);
8492
8493 DEBUG2(ql4_printk(KERN_INFO, ha,
8494 "Default time to wait for build ddb %d\n", tmo));
8495
8496 wtime = jiffies + (HZ * tmo);
8497 do {
8498 if (list_empty(&list_st))
8499 break;
8500
8501 qla4xxx_remove_failed_ddb(ha, &list_st);
8502 schedule_timeout_uninterruptible(HZ / 10);
8503 } while (time_after(wtime, jiffies));
8504
8505
8506 qla4xxx_build_nt_list(ha, &list_nt, &list_st, is_reset);
8507
8508 qla4xxx_free_ddb_list(&list_st);
8509 qla4xxx_free_ddb_list(&list_nt);
8510
8511 qla4xxx_free_ddb_index(ha);
8512 }
8513
8514 /**
8515 * qla4xxx_wait_login_resp_boot_tgt - Wait for iSCSI boot target login
8516 * response.
8517 * @ha: pointer to adapter structure
8518 *
8519 * When the boot entry is normal iSCSI target then DF_BOOT_TGT flag will be
8520 * set in DDB and we will wait for login response of boot targets during
8521 * probe.
8522 **/
8523 static void qla4xxx_wait_login_resp_boot_tgt(struct scsi_qla_host *ha)
8524 {
8525 struct ddb_entry *ddb_entry;
8526 struct dev_db_entry *fw_ddb_entry = NULL;
8527 dma_addr_t fw_ddb_entry_dma;
8528 unsigned long wtime;
8529 uint32_t ddb_state;
8530 int max_ddbs, idx, ret;
8531
8532 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
8533 MAX_DEV_DB_ENTRIES;
8534
8535 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8536 &fw_ddb_entry_dma, GFP_KERNEL);
8537 if (!fw_ddb_entry) {
8538 ql4_printk(KERN_ERR, ha,
8539 "%s: Unable to allocate dma buffer\n", __func__);
8540 goto exit_login_resp;
8541 }
8542
8543 wtime = jiffies + (HZ * BOOT_LOGIN_RESP_TOV);
8544
8545 for (idx = 0; idx < max_ddbs; idx++) {
8546 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
8547 if (ddb_entry == NULL)
8548 continue;
8549
8550 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) {
8551 DEBUG2(ql4_printk(KERN_INFO, ha,
8552 "%s: DDB index [%d]\n", __func__,
8553 ddb_entry->fw_ddb_index));
8554 do {
8555 ret = qla4xxx_get_fwddb_entry(ha,
8556 ddb_entry->fw_ddb_index,
8557 fw_ddb_entry, fw_ddb_entry_dma,
8558 NULL, NULL, &ddb_state, NULL,
8559 NULL, NULL);
8560 if (ret == QLA_ERROR)
8561 goto exit_login_resp;
8562
8563 if ((ddb_state == DDB_DS_SESSION_ACTIVE) ||
8564 (ddb_state == DDB_DS_SESSION_FAILED))
8565 break;
8566
8567 schedule_timeout_uninterruptible(HZ);
8568
8569 } while ((time_after(wtime, jiffies)));
8570
8571 if (!time_after(wtime, jiffies)) {
8572 DEBUG2(ql4_printk(KERN_INFO, ha,
8573 "%s: Login response wait timer expired\n",
8574 __func__));
8575 goto exit_login_resp;
8576 }
8577 }
8578 }
8579
8580 exit_login_resp:
8581 if (fw_ddb_entry)
8582 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8583 fw_ddb_entry, fw_ddb_entry_dma);
8584 }
8585
8586 /**
8587 * qla4xxx_probe_adapter - callback function to probe HBA
8588 * @pdev: pointer to pci_dev structure
8589 * @pci_device_id: pointer to pci_device entry
8590 *
8591 * This routine will probe for Qlogic 4xxx iSCSI host adapters.
8592 * It returns zero if successful. It also initializes all data necessary for
8593 * the driver.
8594 **/
8595 static int qla4xxx_probe_adapter(struct pci_dev *pdev,
8596 const struct pci_device_id *ent)
8597 {
8598 int ret = -ENODEV, status;
8599 struct Scsi_Host *host;
8600 struct scsi_qla_host *ha;
8601 uint8_t init_retry_count = 0;
8602 char buf[34];
8603 struct qla4_8xxx_legacy_intr_set *nx_legacy_intr;
8604 uint32_t dev_state;
8605
8606 if (pci_enable_device(pdev))
8607 return -1;
8608
8609 host = iscsi_host_alloc(&qla4xxx_driver_template, sizeof(*ha), 0);
8610 if (host == NULL) {
8611 printk(KERN_WARNING
8612 "qla4xxx: Couldn't allocate host from scsi layer!\n");
8613 goto probe_disable_device;
8614 }
8615
8616 /* Clear our data area */
8617 ha = to_qla_host(host);
8618 memset(ha, 0, sizeof(*ha));
8619
8620 /* Save the information from PCI BIOS. */
8621 ha->pdev = pdev;
8622 ha->host = host;
8623 ha->host_no = host->host_no;
8624 ha->func_num = PCI_FUNC(ha->pdev->devfn);
8625
8626 pci_enable_pcie_error_reporting(pdev);
8627
8628 /* Setup Runtime configurable options */
8629 if (is_qla8022(ha)) {
8630 ha->isp_ops = &qla4_82xx_isp_ops;
8631 ha->reg_tbl = (uint32_t *) qla4_82xx_reg_tbl;
8632 ha->qdr_sn_window = -1;
8633 ha->ddr_mn_window = -1;
8634 ha->curr_window = 255;
8635 nx_legacy_intr = &legacy_intr[ha->func_num];
8636 ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit;
8637 ha->nx_legacy_intr.tgt_status_reg =
8638 nx_legacy_intr->tgt_status_reg;
8639 ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg;
8640 ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg;
8641 } else if (is_qla8032(ha) || is_qla8042(ha)) {
8642 ha->isp_ops = &qla4_83xx_isp_ops;
8643 ha->reg_tbl = (uint32_t *)qla4_83xx_reg_tbl;
8644 } else {
8645 ha->isp_ops = &qla4xxx_isp_ops;
8646 }
8647
8648 if (is_qla80XX(ha)) {
8649 rwlock_init(&ha->hw_lock);
8650 ha->pf_bit = ha->func_num << 16;
8651 /* Set EEH reset type to fundamental if required by hba */
8652 pdev->needs_freset = 1;
8653 }
8654
8655 /* Configure PCI I/O space. */
8656 ret = ha->isp_ops->iospace_config(ha);
8657 if (ret)
8658 goto probe_failed_ioconfig;
8659
8660 ql4_printk(KERN_INFO, ha, "Found an ISP%04x, irq %d, iobase 0x%p\n",
8661 pdev->device, pdev->irq, ha->reg);
8662
8663 qla4xxx_config_dma_addressing(ha);
8664
8665 /* Initialize lists and spinlocks. */
8666 INIT_LIST_HEAD(&ha->free_srb_q);
8667
8668 mutex_init(&ha->mbox_sem);
8669 mutex_init(&ha->chap_sem);
8670 init_completion(&ha->mbx_intr_comp);
8671 init_completion(&ha->disable_acb_comp);
8672 init_completion(&ha->idc_comp);
8673 init_completion(&ha->link_up_comp);
8674 init_completion(&ha->disable_acb_comp);
8675
8676 spin_lock_init(&ha->hardware_lock);
8677 spin_lock_init(&ha->work_lock);
8678
8679 /* Initialize work list */
8680 INIT_LIST_HEAD(&ha->work_list);
8681
8682 /* Allocate dma buffers */
8683 if (qla4xxx_mem_alloc(ha)) {
8684 ql4_printk(KERN_WARNING, ha,
8685 "[ERROR] Failed to allocate memory for adapter\n");
8686
8687 ret = -ENOMEM;
8688 goto probe_failed;
8689 }
8690
8691 host->cmd_per_lun = 3;
8692 host->max_channel = 0;
8693 host->max_lun = MAX_LUNS - 1;
8694 host->max_id = MAX_TARGETS;
8695 host->max_cmd_len = IOCB_MAX_CDB_LEN;
8696 host->can_queue = MAX_SRBS ;
8697 host->transportt = qla4xxx_scsi_transport;
8698
8699 pci_set_drvdata(pdev, ha);
8700
8701 ret = scsi_add_host(host, &pdev->dev);
8702 if (ret)
8703 goto probe_failed;
8704
8705 if (is_qla80XX(ha))
8706 qla4_8xxx_get_flash_info(ha);
8707
8708 if (is_qla8032(ha) || is_qla8042(ha)) {
8709 qla4_83xx_read_reset_template(ha);
8710 /*
8711 * NOTE: If ql4dontresethba==1, set IDC_CTRL DONTRESET_BIT0.
8712 * If DONRESET_BIT0 is set, drivers should not set dev_state
8713 * to NEED_RESET. But if NEED_RESET is set, drivers should
8714 * should honor the reset.
8715 */
8716 if (ql4xdontresethba == 1)
8717 qla4_83xx_set_idc_dontreset(ha);
8718 }
8719
8720 /*
8721 * Initialize the Host adapter request/response queues and
8722 * firmware
8723 * NOTE: interrupts enabled upon successful completion
8724 */
8725 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER);
8726
8727 /* Dont retry adapter initialization if IRQ allocation failed */
8728 if (is_qla80XX(ha) && (status == QLA_ERROR))
8729 goto skip_retry_init;
8730
8731 while ((!test_bit(AF_ONLINE, &ha->flags)) &&
8732 init_retry_count++ < MAX_INIT_RETRIES) {
8733
8734 if (is_qla80XX(ha)) {
8735 ha->isp_ops->idc_lock(ha);
8736 dev_state = qla4_8xxx_rd_direct(ha,
8737 QLA8XXX_CRB_DEV_STATE);
8738 ha->isp_ops->idc_unlock(ha);
8739 if (dev_state == QLA8XXX_DEV_FAILED) {
8740 ql4_printk(KERN_WARNING, ha, "%s: don't retry "
8741 "initialize adapter. H/W is in failed state\n",
8742 __func__);
8743 break;
8744 }
8745 }
8746 DEBUG2(printk("scsi: %s: retrying adapter initialization "
8747 "(%d)\n", __func__, init_retry_count));
8748
8749 if (ha->isp_ops->reset_chip(ha) == QLA_ERROR)
8750 continue;
8751
8752 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER);
8753 if (is_qla80XX(ha) && (status == QLA_ERROR)) {
8754 if (qla4_8xxx_check_init_adapter_retry(ha) == QLA_ERROR)
8755 goto skip_retry_init;
8756 }
8757 }
8758
8759 skip_retry_init:
8760 if (!test_bit(AF_ONLINE, &ha->flags)) {
8761 ql4_printk(KERN_WARNING, ha, "Failed to initialize adapter\n");
8762
8763 if ((is_qla8022(ha) && ql4xdontresethba) ||
8764 ((is_qla8032(ha) || is_qla8042(ha)) &&
8765 qla4_83xx_idc_dontreset(ha))) {
8766 /* Put the device in failed state. */
8767 DEBUG2(printk(KERN_ERR "HW STATE: FAILED\n"));
8768 ha->isp_ops->idc_lock(ha);
8769 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
8770 QLA8XXX_DEV_FAILED);
8771 ha->isp_ops->idc_unlock(ha);
8772 }
8773 ret = -ENODEV;
8774 goto remove_host;
8775 }
8776
8777 /* Startup the kernel thread for this host adapter. */
8778 DEBUG2(printk("scsi: %s: Starting kernel thread for "
8779 "qla4xxx_dpc\n", __func__));
8780 sprintf(buf, "qla4xxx_%lu_dpc", ha->host_no);
8781 ha->dpc_thread = create_singlethread_workqueue(buf);
8782 if (!ha->dpc_thread) {
8783 ql4_printk(KERN_WARNING, ha, "Unable to start DPC thread!\n");
8784 ret = -ENODEV;
8785 goto remove_host;
8786 }
8787 INIT_WORK(&ha->dpc_work, qla4xxx_do_dpc);
8788
8789 ha->task_wq = alloc_workqueue("qla4xxx_%lu_task", WQ_MEM_RECLAIM, 1,
8790 ha->host_no);
8791 if (!ha->task_wq) {
8792 ql4_printk(KERN_WARNING, ha, "Unable to start task thread!\n");
8793 ret = -ENODEV;
8794 goto remove_host;
8795 }
8796
8797 /*
8798 * For ISP-8XXX, request_irqs is called in qla4_8xxx_load_risc
8799 * (which is called indirectly by qla4xxx_initialize_adapter),
8800 * so that irqs will be registered after crbinit but before
8801 * mbx_intr_enable.
8802 */
8803 if (is_qla40XX(ha)) {
8804 ret = qla4xxx_request_irqs(ha);
8805 if (ret) {
8806 ql4_printk(KERN_WARNING, ha, "Failed to reserve "
8807 "interrupt %d already in use.\n", pdev->irq);
8808 goto remove_host;
8809 }
8810 }
8811
8812 pci_save_state(ha->pdev);
8813 ha->isp_ops->enable_intrs(ha);
8814
8815 /* Start timer thread. */
8816 qla4xxx_start_timer(ha, qla4xxx_timer, 1);
8817
8818 set_bit(AF_INIT_DONE, &ha->flags);
8819
8820 qla4_8xxx_alloc_sysfs_attr(ha);
8821
8822 printk(KERN_INFO
8823 " QLogic iSCSI HBA Driver version: %s\n"
8824 " QLogic ISP%04x @ %s, host#=%ld, fw=%02d.%02d.%02d.%02d\n",
8825 qla4xxx_version_str, ha->pdev->device, pci_name(ha->pdev),
8826 ha->host_no, ha->fw_info.fw_major, ha->fw_info.fw_minor,
8827 ha->fw_info.fw_patch, ha->fw_info.fw_build);
8828
8829 /* Set the driver version */
8830 if (is_qla80XX(ha))
8831 qla4_8xxx_set_param(ha, SET_DRVR_VERSION);
8832
8833 if (qla4xxx_setup_boot_info(ha))
8834 ql4_printk(KERN_ERR, ha,
8835 "%s: No iSCSI boot target configured\n", __func__);
8836
8837 set_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags);
8838 /* Perform the build ddb list and login to each */
8839 qla4xxx_build_ddb_list(ha, INIT_ADAPTER);
8840 iscsi_host_for_each_session(ha->host, qla4xxx_login_flash_ddb);
8841 qla4xxx_wait_login_resp_boot_tgt(ha);
8842
8843 qla4xxx_create_chap_list(ha);
8844
8845 qla4xxx_create_ifaces(ha);
8846 return 0;
8847
8848 remove_host:
8849 scsi_remove_host(ha->host);
8850
8851 probe_failed:
8852 qla4xxx_free_adapter(ha);
8853
8854 probe_failed_ioconfig:
8855 pci_disable_pcie_error_reporting(pdev);
8856 scsi_host_put(ha->host);
8857
8858 probe_disable_device:
8859 pci_disable_device(pdev);
8860
8861 return ret;
8862 }
8863
8864 /**
8865 * qla4xxx_prevent_other_port_reinit - prevent other port from re-initialize
8866 * @ha: pointer to adapter structure
8867 *
8868 * Mark the other ISP-4xxx port to indicate that the driver is being removed,
8869 * so that the other port will not re-initialize while in the process of
8870 * removing the ha due to driver unload or hba hotplug.
8871 **/
8872 static void qla4xxx_prevent_other_port_reinit(struct scsi_qla_host *ha)
8873 {
8874 struct scsi_qla_host *other_ha = NULL;
8875 struct pci_dev *other_pdev = NULL;
8876 int fn = ISP4XXX_PCI_FN_2;
8877
8878 /*iscsi function numbers for ISP4xxx is 1 and 3*/
8879 if (PCI_FUNC(ha->pdev->devfn) & BIT_1)
8880 fn = ISP4XXX_PCI_FN_1;
8881
8882 other_pdev =
8883 pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus),
8884 ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
8885 fn));
8886
8887 /* Get other_ha if other_pdev is valid and state is enable*/
8888 if (other_pdev) {
8889 if (atomic_read(&other_pdev->enable_cnt)) {
8890 other_ha = pci_get_drvdata(other_pdev);
8891 if (other_ha) {
8892 set_bit(AF_HA_REMOVAL, &other_ha->flags);
8893 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: "
8894 "Prevent %s reinit\n", __func__,
8895 dev_name(&other_ha->pdev->dev)));
8896 }
8897 }
8898 pci_dev_put(other_pdev);
8899 }
8900 }
8901
8902 static void qla4xxx_destroy_ddb(struct scsi_qla_host *ha,
8903 struct ddb_entry *ddb_entry)
8904 {
8905 struct dev_db_entry *fw_ddb_entry = NULL;
8906 dma_addr_t fw_ddb_entry_dma;
8907 unsigned long wtime;
8908 uint32_t ddb_state;
8909 int options;
8910 int status;
8911
8912 options = LOGOUT_OPTION_CLOSE_SESSION;
8913 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR) {
8914 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__);
8915 goto clear_ddb;
8916 }
8917
8918 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8919 &fw_ddb_entry_dma, GFP_KERNEL);
8920 if (!fw_ddb_entry) {
8921 ql4_printk(KERN_ERR, ha,
8922 "%s: Unable to allocate dma buffer\n", __func__);
8923 goto clear_ddb;
8924 }
8925
8926 wtime = jiffies + (HZ * LOGOUT_TOV);
8927 do {
8928 status = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
8929 fw_ddb_entry, fw_ddb_entry_dma,
8930 NULL, NULL, &ddb_state, NULL,
8931 NULL, NULL);
8932 if (status == QLA_ERROR)
8933 goto free_ddb;
8934
8935 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) ||
8936 (ddb_state == DDB_DS_SESSION_FAILED))
8937 goto free_ddb;
8938
8939 schedule_timeout_uninterruptible(HZ);
8940 } while ((time_after(wtime, jiffies)));
8941
8942 free_ddb:
8943 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8944 fw_ddb_entry, fw_ddb_entry_dma);
8945 clear_ddb:
8946 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
8947 }
8948
8949 static void qla4xxx_destroy_fw_ddb_session(struct scsi_qla_host *ha)
8950 {
8951 struct ddb_entry *ddb_entry;
8952 int idx;
8953
8954 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
8955
8956 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
8957 if ((ddb_entry != NULL) &&
8958 (ddb_entry->ddb_type == FLASH_DDB)) {
8959
8960 qla4xxx_destroy_ddb(ha, ddb_entry);
8961 /*
8962 * we have decremented the reference count of the driver
8963 * when we setup the session to have the driver unload
8964 * to be seamless without actually destroying the
8965 * session
8966 **/
8967 try_module_get(qla4xxx_iscsi_transport.owner);
8968 iscsi_destroy_endpoint(ddb_entry->conn->ep);
8969 qla4xxx_free_ddb(ha, ddb_entry);
8970 iscsi_session_teardown(ddb_entry->sess);
8971 }
8972 }
8973 }
8974 /**
8975 * qla4xxx_remove_adapter - callback function to remove adapter.
8976 * @pci_dev: PCI device pointer
8977 **/
8978 static void qla4xxx_remove_adapter(struct pci_dev *pdev)
8979 {
8980 struct scsi_qla_host *ha;
8981
8982 /*
8983 * If the PCI device is disabled then it means probe_adapter had
8984 * failed and resources already cleaned up on probe_adapter exit.
8985 */
8986 if (!pci_is_enabled(pdev))
8987 return;
8988
8989 ha = pci_get_drvdata(pdev);
8990
8991 if (is_qla40XX(ha))
8992 qla4xxx_prevent_other_port_reinit(ha);
8993
8994 /* destroy iface from sysfs */
8995 qla4xxx_destroy_ifaces(ha);
8996
8997 if ((!ql4xdisablesysfsboot) && ha->boot_kset)
8998 iscsi_boot_destroy_kset(ha->boot_kset);
8999
9000 qla4xxx_destroy_fw_ddb_session(ha);
9001 qla4_8xxx_free_sysfs_attr(ha);
9002
9003 qla4xxx_sysfs_ddb_remove(ha);
9004 scsi_remove_host(ha->host);
9005
9006 qla4xxx_free_adapter(ha);
9007
9008 scsi_host_put(ha->host);
9009
9010 pci_disable_pcie_error_reporting(pdev);
9011 pci_disable_device(pdev);
9012 }
9013
9014 /**
9015 * qla4xxx_config_dma_addressing() - Configure OS DMA addressing method.
9016 * @ha: HA context
9017 *
9018 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
9019 * supported addressing method.
9020 */
9021 static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha)
9022 {
9023 int retval;
9024
9025 /* Update our PCI device dma_mask for full 64 bit mask */
9026 if (pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(64)) == 0) {
9027 if (pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) {
9028 dev_dbg(&ha->pdev->dev,
9029 "Failed to set 64 bit PCI consistent mask; "
9030 "using 32 bit.\n");
9031 retval = pci_set_consistent_dma_mask(ha->pdev,
9032 DMA_BIT_MASK(32));
9033 }
9034 } else
9035 retval = pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(32));
9036 }
9037
9038 static int qla4xxx_slave_alloc(struct scsi_device *sdev)
9039 {
9040 struct iscsi_cls_session *cls_sess;
9041 struct iscsi_session *sess;
9042 struct ddb_entry *ddb;
9043 int queue_depth = QL4_DEF_QDEPTH;
9044
9045 cls_sess = starget_to_session(sdev->sdev_target);
9046 sess = cls_sess->dd_data;
9047 ddb = sess->dd_data;
9048
9049 sdev->hostdata = ddb;
9050
9051 if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU)
9052 queue_depth = ql4xmaxqdepth;
9053
9054 scsi_change_queue_depth(sdev, queue_depth);
9055 return 0;
9056 }
9057
9058 /**
9059 * qla4xxx_del_from_active_array - returns an active srb
9060 * @ha: Pointer to host adapter structure.
9061 * @index: index into the active_array
9062 *
9063 * This routine removes and returns the srb at the specified index
9064 **/
9065 struct srb *qla4xxx_del_from_active_array(struct scsi_qla_host *ha,
9066 uint32_t index)
9067 {
9068 struct srb *srb = NULL;
9069 struct scsi_cmnd *cmd = NULL;
9070
9071 cmd = scsi_host_find_tag(ha->host, index);
9072 if (!cmd)
9073 return srb;
9074
9075 srb = (struct srb *)CMD_SP(cmd);
9076 if (!srb)
9077 return srb;
9078
9079 /* update counters */
9080 if (srb->flags & SRB_DMA_VALID) {
9081 ha->iocb_cnt -= srb->iocb_cnt;
9082 if (srb->cmd)
9083 srb->cmd->host_scribble =
9084 (unsigned char *)(unsigned long) MAX_SRBS;
9085 }
9086 return srb;
9087 }
9088
9089 /**
9090 * qla4xxx_eh_wait_on_command - waits for command to be returned by firmware
9091 * @ha: Pointer to host adapter structure.
9092 * @cmd: Scsi Command to wait on.
9093 *
9094 * This routine waits for the command to be returned by the Firmware
9095 * for some max time.
9096 **/
9097 static int qla4xxx_eh_wait_on_command(struct scsi_qla_host *ha,
9098 struct scsi_cmnd *cmd)
9099 {
9100 int done = 0;
9101 struct srb *rp;
9102 uint32_t max_wait_time = EH_WAIT_CMD_TOV;
9103 int ret = SUCCESS;
9104
9105 /* Dont wait on command if PCI error is being handled
9106 * by PCI AER driver
9107 */
9108 if (unlikely(pci_channel_offline(ha->pdev)) ||
9109 (test_bit(AF_EEH_BUSY, &ha->flags))) {
9110 ql4_printk(KERN_WARNING, ha, "scsi%ld: Return from %s\n",
9111 ha->host_no, __func__);
9112 return ret;
9113 }
9114
9115 do {
9116 /* Checking to see if its returned to OS */
9117 rp = (struct srb *) CMD_SP(cmd);
9118 if (rp == NULL) {
9119 done++;
9120 break;
9121 }
9122
9123 msleep(2000);
9124 } while (max_wait_time--);
9125
9126 return done;
9127 }
9128
9129 /**
9130 * qla4xxx_wait_for_hba_online - waits for HBA to come online
9131 * @ha: Pointer to host adapter structure
9132 **/
9133 static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha)
9134 {
9135 unsigned long wait_online;
9136
9137 wait_online = jiffies + (HBA_ONLINE_TOV * HZ);
9138 while (time_before(jiffies, wait_online)) {
9139
9140 if (adapter_up(ha))
9141 return QLA_SUCCESS;
9142
9143 msleep(2000);
9144 }
9145
9146 return QLA_ERROR;
9147 }
9148
9149 /**
9150 * qla4xxx_eh_wait_for_commands - wait for active cmds to finish.
9151 * @ha: pointer to HBA
9152 * @t: target id
9153 * @l: lun id
9154 *
9155 * This function waits for all outstanding commands to a lun to complete. It
9156 * returns 0 if all pending commands are returned and 1 otherwise.
9157 **/
9158 static int qla4xxx_eh_wait_for_commands(struct scsi_qla_host *ha,
9159 struct scsi_target *stgt,
9160 struct scsi_device *sdev)
9161 {
9162 int cnt;
9163 int status = 0;
9164 struct scsi_cmnd *cmd;
9165
9166 /*
9167 * Waiting for all commands for the designated target or dev
9168 * in the active array
9169 */
9170 for (cnt = 0; cnt < ha->host->can_queue; cnt++) {
9171 cmd = scsi_host_find_tag(ha->host, cnt);
9172 if (cmd && stgt == scsi_target(cmd->device) &&
9173 (!sdev || sdev == cmd->device)) {
9174 if (!qla4xxx_eh_wait_on_command(ha, cmd)) {
9175 status++;
9176 break;
9177 }
9178 }
9179 }
9180 return status;
9181 }
9182
9183 /**
9184 * qla4xxx_eh_abort - callback for abort task.
9185 * @cmd: Pointer to Linux's SCSI command structure
9186 *
9187 * This routine is called by the Linux OS to abort the specified
9188 * command.
9189 **/
9190 static int qla4xxx_eh_abort(struct scsi_cmnd *cmd)
9191 {
9192 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
9193 unsigned int id = cmd->device->id;
9194 uint64_t lun = cmd->device->lun;
9195 unsigned long flags;
9196 struct srb *srb = NULL;
9197 int ret = SUCCESS;
9198 int wait = 0;
9199
9200 ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%llu: Abort command issued cmd=%p, cdb=0x%x\n",
9201 ha->host_no, id, lun, cmd, cmd->cmnd[0]);
9202
9203 spin_lock_irqsave(&ha->hardware_lock, flags);
9204 srb = (struct srb *) CMD_SP(cmd);
9205 if (!srb) {
9206 spin_unlock_irqrestore(&ha->hardware_lock, flags);
9207 ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%llu: Specified command has already completed.\n",
9208 ha->host_no, id, lun);
9209 return SUCCESS;
9210 }
9211 kref_get(&srb->srb_ref);
9212 spin_unlock_irqrestore(&ha->hardware_lock, flags);
9213
9214 if (qla4xxx_abort_task(ha, srb) != QLA_SUCCESS) {
9215 DEBUG3(printk("scsi%ld:%d:%llu: Abort_task mbx failed.\n",
9216 ha->host_no, id, lun));
9217 ret = FAILED;
9218 } else {
9219 DEBUG3(printk("scsi%ld:%d:%llu: Abort_task mbx success.\n",
9220 ha->host_no, id, lun));
9221 wait = 1;
9222 }
9223
9224 kref_put(&srb->srb_ref, qla4xxx_srb_compl);
9225
9226 /* Wait for command to complete */
9227 if (wait) {
9228 if (!qla4xxx_eh_wait_on_command(ha, cmd)) {
9229 DEBUG2(printk("scsi%ld:%d:%llu: Abort handler timed out\n",
9230 ha->host_no, id, lun));
9231 ret = FAILED;
9232 }
9233 }
9234
9235 ql4_printk(KERN_INFO, ha,
9236 "scsi%ld:%d:%llu: Abort command - %s\n",
9237 ha->host_no, id, lun, (ret == SUCCESS) ? "succeeded" : "failed");
9238
9239 return ret;
9240 }
9241
9242 /**
9243 * qla4xxx_eh_device_reset - callback for target reset.
9244 * @cmd: Pointer to Linux's SCSI command structure
9245 *
9246 * This routine is called by the Linux OS to reset all luns on the
9247 * specified target.
9248 **/
9249 static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd)
9250 {
9251 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
9252 struct ddb_entry *ddb_entry = cmd->device->hostdata;
9253 int ret = FAILED, stat;
9254
9255 if (!ddb_entry)
9256 return ret;
9257
9258 ret = iscsi_block_scsi_eh(cmd);
9259 if (ret)
9260 return ret;
9261 ret = FAILED;
9262
9263 ql4_printk(KERN_INFO, ha,
9264 "scsi%ld:%d:%d:%llu: DEVICE RESET ISSUED.\n", ha->host_no,
9265 cmd->device->channel, cmd->device->id, cmd->device->lun);
9266
9267 DEBUG2(printk(KERN_INFO
9268 "scsi%ld: DEVICE_RESET cmd=%p jiffies = 0x%lx, to=%x,"
9269 "dpc_flags=%lx, status=%x allowed=%d\n", ha->host_no,
9270 cmd, jiffies, cmd->request->timeout / HZ,
9271 ha->dpc_flags, cmd->result, cmd->allowed));
9272
9273 /* FIXME: wait for hba to go online */
9274 stat = qla4xxx_reset_lun(ha, ddb_entry, cmd->device->lun);
9275 if (stat != QLA_SUCCESS) {
9276 ql4_printk(KERN_INFO, ha, "DEVICE RESET FAILED. %d\n", stat);
9277 goto eh_dev_reset_done;
9278 }
9279
9280 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device),
9281 cmd->device)) {
9282 ql4_printk(KERN_INFO, ha,
9283 "DEVICE RESET FAILED - waiting for "
9284 "commands.\n");
9285 goto eh_dev_reset_done;
9286 }
9287
9288 /* Send marker. */
9289 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun,
9290 MM_LUN_RESET) != QLA_SUCCESS)
9291 goto eh_dev_reset_done;
9292
9293 ql4_printk(KERN_INFO, ha,
9294 "scsi(%ld:%d:%d:%llu): DEVICE RESET SUCCEEDED.\n",
9295 ha->host_no, cmd->device->channel, cmd->device->id,
9296 cmd->device->lun);
9297
9298 ret = SUCCESS;
9299
9300 eh_dev_reset_done:
9301
9302 return ret;
9303 }
9304
9305 /**
9306 * qla4xxx_eh_target_reset - callback for target reset.
9307 * @cmd: Pointer to Linux's SCSI command structure
9308 *
9309 * This routine is called by the Linux OS to reset the target.
9310 **/
9311 static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd)
9312 {
9313 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
9314 struct ddb_entry *ddb_entry = cmd->device->hostdata;
9315 int stat, ret;
9316
9317 if (!ddb_entry)
9318 return FAILED;
9319
9320 ret = iscsi_block_scsi_eh(cmd);
9321 if (ret)
9322 return ret;
9323
9324 starget_printk(KERN_INFO, scsi_target(cmd->device),
9325 "WARM TARGET RESET ISSUED.\n");
9326
9327 DEBUG2(printk(KERN_INFO
9328 "scsi%ld: TARGET_DEVICE_RESET cmd=%p jiffies = 0x%lx, "
9329 "to=%x,dpc_flags=%lx, status=%x allowed=%d\n",
9330 ha->host_no, cmd, jiffies, cmd->request->timeout / HZ,
9331 ha->dpc_flags, cmd->result, cmd->allowed));
9332
9333 stat = qla4xxx_reset_target(ha, ddb_entry);
9334 if (stat != QLA_SUCCESS) {
9335 starget_printk(KERN_INFO, scsi_target(cmd->device),
9336 "WARM TARGET RESET FAILED.\n");
9337 return FAILED;
9338 }
9339
9340 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device),
9341 NULL)) {
9342 starget_printk(KERN_INFO, scsi_target(cmd->device),
9343 "WARM TARGET DEVICE RESET FAILED - "
9344 "waiting for commands.\n");
9345 return FAILED;
9346 }
9347
9348 /* Send marker. */
9349 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun,
9350 MM_TGT_WARM_RESET) != QLA_SUCCESS) {
9351 starget_printk(KERN_INFO, scsi_target(cmd->device),
9352 "WARM TARGET DEVICE RESET FAILED - "
9353 "marker iocb failed.\n");
9354 return FAILED;
9355 }
9356
9357 starget_printk(KERN_INFO, scsi_target(cmd->device),
9358 "WARM TARGET RESET SUCCEEDED.\n");
9359 return SUCCESS;
9360 }
9361
9362 /**
9363 * qla4xxx_is_eh_active - check if error handler is running
9364 * @shost: Pointer to SCSI Host struct
9365 *
9366 * This routine finds that if reset host is called in EH
9367 * scenario or from some application like sg_reset
9368 **/
9369 static int qla4xxx_is_eh_active(struct Scsi_Host *shost)
9370 {
9371 if (shost->shost_state == SHOST_RECOVERY)
9372 return 1;
9373 return 0;
9374 }
9375
9376 /**
9377 * qla4xxx_eh_host_reset - kernel callback
9378 * @cmd: Pointer to Linux's SCSI command structure
9379 *
9380 * This routine is invoked by the Linux kernel to perform fatal error
9381 * recovery on the specified adapter.
9382 **/
9383 static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd)
9384 {
9385 int return_status = FAILED;
9386 struct scsi_qla_host *ha;
9387
9388 ha = to_qla_host(cmd->device->host);
9389
9390 if ((is_qla8032(ha) || is_qla8042(ha)) && ql4xdontresethba)
9391 qla4_83xx_set_idc_dontreset(ha);
9392
9393 /*
9394 * For ISP8324 and ISP8042, if IDC_CTRL DONTRESET_BIT0 is set by other
9395 * protocol drivers, we should not set device_state to NEED_RESET
9396 */
9397 if (ql4xdontresethba ||
9398 ((is_qla8032(ha) || is_qla8042(ha)) &&
9399 qla4_83xx_idc_dontreset(ha))) {
9400 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n",
9401 ha->host_no, __func__));
9402
9403 /* Clear outstanding srb in queues */
9404 if (qla4xxx_is_eh_active(cmd->device->host))
9405 qla4xxx_abort_active_cmds(ha, DID_ABORT << 16);
9406
9407 return FAILED;
9408 }
9409
9410 ql4_printk(KERN_INFO, ha,
9411 "scsi(%ld:%d:%d:%llu): HOST RESET ISSUED.\n", ha->host_no,
9412 cmd->device->channel, cmd->device->id, cmd->device->lun);
9413
9414 if (qla4xxx_wait_for_hba_online(ha) != QLA_SUCCESS) {
9415 DEBUG2(printk("scsi%ld:%d: %s: Unable to reset host. Adapter "
9416 "DEAD.\n", ha->host_no, cmd->device->channel,
9417 __func__));
9418
9419 return FAILED;
9420 }
9421
9422 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
9423 if (is_qla80XX(ha))
9424 set_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
9425 else
9426 set_bit(DPC_RESET_HA, &ha->dpc_flags);
9427 }
9428
9429 if (qla4xxx_recover_adapter(ha) == QLA_SUCCESS)
9430 return_status = SUCCESS;
9431
9432 ql4_printk(KERN_INFO, ha, "HOST RESET %s.\n",
9433 return_status == FAILED ? "FAILED" : "SUCCEEDED");
9434
9435 return return_status;
9436 }
9437
9438 static int qla4xxx_context_reset(struct scsi_qla_host *ha)
9439 {
9440 uint32_t mbox_cmd[MBOX_REG_COUNT];
9441 uint32_t mbox_sts[MBOX_REG_COUNT];
9442 struct addr_ctrl_blk_def *acb = NULL;
9443 uint32_t acb_len = sizeof(struct addr_ctrl_blk_def);
9444 int rval = QLA_SUCCESS;
9445 dma_addr_t acb_dma;
9446
9447 acb = dma_alloc_coherent(&ha->pdev->dev,
9448 sizeof(struct addr_ctrl_blk_def),
9449 &acb_dma, GFP_KERNEL);
9450 if (!acb) {
9451 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc acb\n",
9452 __func__);
9453 rval = -ENOMEM;
9454 goto exit_port_reset;
9455 }
9456
9457 memset(acb, 0, acb_len);
9458
9459 rval = qla4xxx_get_acb(ha, acb_dma, PRIMARI_ACB, acb_len);
9460 if (rval != QLA_SUCCESS) {
9461 rval = -EIO;
9462 goto exit_free_acb;
9463 }
9464
9465 rval = qla4xxx_disable_acb(ha);
9466 if (rval != QLA_SUCCESS) {
9467 rval = -EIO;
9468 goto exit_free_acb;
9469 }
9470
9471 wait_for_completion_timeout(&ha->disable_acb_comp,
9472 DISABLE_ACB_TOV * HZ);
9473
9474 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], acb_dma);
9475 if (rval != QLA_SUCCESS) {
9476 rval = -EIO;
9477 goto exit_free_acb;
9478 }
9479
9480 exit_free_acb:
9481 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk_def),
9482 acb, acb_dma);
9483 exit_port_reset:
9484 DEBUG2(ql4_printk(KERN_INFO, ha, "%s %s\n", __func__,
9485 rval == QLA_SUCCESS ? "SUCCEEDED" : "FAILED"));
9486 return rval;
9487 }
9488
9489 static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type)
9490 {
9491 struct scsi_qla_host *ha = to_qla_host(shost);
9492 int rval = QLA_SUCCESS;
9493 uint32_t idc_ctrl;
9494
9495 if (ql4xdontresethba) {
9496 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Don't Reset HBA\n",
9497 __func__));
9498 rval = -EPERM;
9499 goto exit_host_reset;
9500 }
9501
9502 if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
9503 goto recover_adapter;
9504
9505 switch (reset_type) {
9506 case SCSI_ADAPTER_RESET:
9507 set_bit(DPC_RESET_HA, &ha->dpc_flags);
9508 break;
9509 case SCSI_FIRMWARE_RESET:
9510 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
9511 if (is_qla80XX(ha))
9512 /* set firmware context reset */
9513 set_bit(DPC_RESET_HA_FW_CONTEXT,
9514 &ha->dpc_flags);
9515 else {
9516 rval = qla4xxx_context_reset(ha);
9517 goto exit_host_reset;
9518 }
9519 }
9520 break;
9521 }
9522
9523 recover_adapter:
9524 /* For ISP8324 and ISP8042 set graceful reset bit in IDC_DRV_CTRL if
9525 * reset is issued by application */
9526 if ((is_qla8032(ha) || is_qla8042(ha)) &&
9527 test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
9528 idc_ctrl = qla4_83xx_rd_reg(ha, QLA83XX_IDC_DRV_CTRL);
9529 qla4_83xx_wr_reg(ha, QLA83XX_IDC_DRV_CTRL,
9530 (idc_ctrl | GRACEFUL_RESET_BIT1));
9531 }
9532
9533 rval = qla4xxx_recover_adapter(ha);
9534 if (rval != QLA_SUCCESS) {
9535 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: recover adapter fail\n",
9536 __func__));
9537 rval = -EIO;
9538 }
9539
9540 exit_host_reset:
9541 return rval;
9542 }
9543
9544 /* PCI AER driver recovers from all correctable errors w/o
9545 * driver intervention. For uncorrectable errors PCI AER
9546 * driver calls the following device driver's callbacks
9547 *
9548 * - Fatal Errors - link_reset
9549 * - Non-Fatal Errors - driver's pci_error_detected() which
9550 * returns CAN_RECOVER, NEED_RESET or DISCONNECT.
9551 *
9552 * PCI AER driver calls
9553 * CAN_RECOVER - driver's pci_mmio_enabled(), mmio_enabled
9554 * returns RECOVERED or NEED_RESET if fw_hung
9555 * NEED_RESET - driver's slot_reset()
9556 * DISCONNECT - device is dead & cannot recover
9557 * RECOVERED - driver's pci_resume()
9558 */
9559 static pci_ers_result_t
9560 qla4xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
9561 {
9562 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9563
9564 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: error detected:state %x\n",
9565 ha->host_no, __func__, state);
9566
9567 if (!is_aer_supported(ha))
9568 return PCI_ERS_RESULT_NONE;
9569
9570 switch (state) {
9571 case pci_channel_io_normal:
9572 clear_bit(AF_EEH_BUSY, &ha->flags);
9573 return PCI_ERS_RESULT_CAN_RECOVER;
9574 case pci_channel_io_frozen:
9575 set_bit(AF_EEH_BUSY, &ha->flags);
9576 qla4xxx_mailbox_premature_completion(ha);
9577 qla4xxx_free_irqs(ha);
9578 pci_disable_device(pdev);
9579 /* Return back all IOs */
9580 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
9581 return PCI_ERS_RESULT_NEED_RESET;
9582 case pci_channel_io_perm_failure:
9583 set_bit(AF_EEH_BUSY, &ha->flags);
9584 set_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags);
9585 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
9586 return PCI_ERS_RESULT_DISCONNECT;
9587 }
9588 return PCI_ERS_RESULT_NEED_RESET;
9589 }
9590
9591 /**
9592 * qla4xxx_pci_mmio_enabled() gets called if
9593 * qla4xxx_pci_error_detected() returns PCI_ERS_RESULT_CAN_RECOVER
9594 * and read/write to the device still works.
9595 **/
9596 static pci_ers_result_t
9597 qla4xxx_pci_mmio_enabled(struct pci_dev *pdev)
9598 {
9599 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9600
9601 if (!is_aer_supported(ha))
9602 return PCI_ERS_RESULT_NONE;
9603
9604 return PCI_ERS_RESULT_RECOVERED;
9605 }
9606
9607 static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha)
9608 {
9609 uint32_t rval = QLA_ERROR;
9610 int fn;
9611 struct pci_dev *other_pdev = NULL;
9612
9613 ql4_printk(KERN_WARNING, ha, "scsi%ld: In %s\n", ha->host_no, __func__);
9614
9615 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
9616
9617 if (test_bit(AF_ONLINE, &ha->flags)) {
9618 clear_bit(AF_ONLINE, &ha->flags);
9619 clear_bit(AF_LINK_UP, &ha->flags);
9620 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session);
9621 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
9622 }
9623
9624 fn = PCI_FUNC(ha->pdev->devfn);
9625 if (is_qla8022(ha)) {
9626 while (fn > 0) {
9627 fn--;
9628 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Finding PCI device at func %x\n",
9629 ha->host_no, __func__, fn);
9630 /* Get the pci device given the domain, bus,
9631 * slot/function number */
9632 other_pdev = pci_get_domain_bus_and_slot(
9633 pci_domain_nr(ha->pdev->bus),
9634 ha->pdev->bus->number,
9635 PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
9636 fn));
9637
9638 if (!other_pdev)
9639 continue;
9640
9641 if (atomic_read(&other_pdev->enable_cnt)) {
9642 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Found PCI func in enabled state%x\n",
9643 ha->host_no, __func__, fn);
9644 pci_dev_put(other_pdev);
9645 break;
9646 }
9647 pci_dev_put(other_pdev);
9648 }
9649 } else {
9650 /* this case is meant for ISP83xx/ISP84xx only */
9651 if (qla4_83xx_can_perform_reset(ha)) {
9652 /* reset fn as iSCSI is going to perform the reset */
9653 fn = 0;
9654 }
9655 }
9656
9657 /* The first function on the card, the reset owner will
9658 * start & initialize the firmware. The other functions
9659 * on the card will reset the firmware context
9660 */
9661 if (!fn) {
9662 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn being reset "
9663 "0x%x is the owner\n", ha->host_no, __func__,
9664 ha->pdev->devfn);
9665
9666 ha->isp_ops->idc_lock(ha);
9667 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9668 QLA8XXX_DEV_COLD);
9669 ha->isp_ops->idc_unlock(ha);
9670
9671 rval = qla4_8xxx_update_idc_reg(ha);
9672 if (rval == QLA_ERROR) {
9673 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: FAILED\n",
9674 ha->host_no, __func__);
9675 ha->isp_ops->idc_lock(ha);
9676 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9677 QLA8XXX_DEV_FAILED);
9678 ha->isp_ops->idc_unlock(ha);
9679 goto exit_error_recovery;
9680 }
9681
9682 clear_bit(AF_FW_RECOVERY, &ha->flags);
9683 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
9684
9685 if (rval != QLA_SUCCESS) {
9686 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: "
9687 "FAILED\n", ha->host_no, __func__);
9688 qla4xxx_free_irqs(ha);
9689 ha->isp_ops->idc_lock(ha);
9690 qla4_8xxx_clear_drv_active(ha);
9691 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9692 QLA8XXX_DEV_FAILED);
9693 ha->isp_ops->idc_unlock(ha);
9694 } else {
9695 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: "
9696 "READY\n", ha->host_no, __func__);
9697 ha->isp_ops->idc_lock(ha);
9698 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9699 QLA8XXX_DEV_READY);
9700 /* Clear driver state register */
9701 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_STATE, 0);
9702 qla4_8xxx_set_drv_active(ha);
9703 ha->isp_ops->idc_unlock(ha);
9704 ha->isp_ops->enable_intrs(ha);
9705 }
9706 } else {
9707 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn 0x%x is not "
9708 "the reset owner\n", ha->host_no, __func__,
9709 ha->pdev->devfn);
9710 if ((qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE) ==
9711 QLA8XXX_DEV_READY)) {
9712 clear_bit(AF_FW_RECOVERY, &ha->flags);
9713 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
9714 if (rval == QLA_SUCCESS)
9715 ha->isp_ops->enable_intrs(ha);
9716 else
9717 qla4xxx_free_irqs(ha);
9718
9719 ha->isp_ops->idc_lock(ha);
9720 qla4_8xxx_set_drv_active(ha);
9721 ha->isp_ops->idc_unlock(ha);
9722 }
9723 }
9724 exit_error_recovery:
9725 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
9726 return rval;
9727 }
9728
9729 static pci_ers_result_t
9730 qla4xxx_pci_slot_reset(struct pci_dev *pdev)
9731 {
9732 pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
9733 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9734 int rc;
9735
9736 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: slot_reset\n",
9737 ha->host_no, __func__);
9738
9739 if (!is_aer_supported(ha))
9740 return PCI_ERS_RESULT_NONE;
9741
9742 /* Restore the saved state of PCIe device -
9743 * BAR registers, PCI Config space, PCIX, MSI,
9744 * IOV states
9745 */
9746 pci_restore_state(pdev);
9747
9748 /* pci_restore_state() clears the saved_state flag of the device
9749 * save restored state which resets saved_state flag
9750 */
9751 pci_save_state(pdev);
9752
9753 /* Initialize device or resume if in suspended state */
9754 rc = pci_enable_device(pdev);
9755 if (rc) {
9756 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Can't re-enable "
9757 "device after reset\n", ha->host_no, __func__);
9758 goto exit_slot_reset;
9759 }
9760
9761 ha->isp_ops->disable_intrs(ha);
9762
9763 if (is_qla80XX(ha)) {
9764 if (qla4_8xxx_error_recovery(ha) == QLA_SUCCESS) {
9765 ret = PCI_ERS_RESULT_RECOVERED;
9766 goto exit_slot_reset;
9767 } else
9768 goto exit_slot_reset;
9769 }
9770
9771 exit_slot_reset:
9772 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Return=%x\n"
9773 "device after reset\n", ha->host_no, __func__, ret);
9774 return ret;
9775 }
9776
9777 static void
9778 qla4xxx_pci_resume(struct pci_dev *pdev)
9779 {
9780 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9781 int ret;
9782
9783 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: pci_resume\n",
9784 ha->host_no, __func__);
9785
9786 ret = qla4xxx_wait_for_hba_online(ha);
9787 if (ret != QLA_SUCCESS) {
9788 ql4_printk(KERN_ERR, ha, "scsi%ld: %s: the device failed to "
9789 "resume I/O from slot/link_reset\n", ha->host_no,
9790 __func__);
9791 }
9792
9793 pci_cleanup_aer_uncorrect_error_status(pdev);
9794 clear_bit(AF_EEH_BUSY, &ha->flags);
9795 }
9796
9797 static const struct pci_error_handlers qla4xxx_err_handler = {
9798 .error_detected = qla4xxx_pci_error_detected,
9799 .mmio_enabled = qla4xxx_pci_mmio_enabled,
9800 .slot_reset = qla4xxx_pci_slot_reset,
9801 .resume = qla4xxx_pci_resume,
9802 };
9803
9804 static struct pci_device_id qla4xxx_pci_tbl[] = {
9805 {
9806 .vendor = PCI_VENDOR_ID_QLOGIC,
9807 .device = PCI_DEVICE_ID_QLOGIC_ISP4010,
9808 .subvendor = PCI_ANY_ID,
9809 .subdevice = PCI_ANY_ID,
9810 },
9811 {
9812 .vendor = PCI_VENDOR_ID_QLOGIC,
9813 .device = PCI_DEVICE_ID_QLOGIC_ISP4022,
9814 .subvendor = PCI_ANY_ID,
9815 .subdevice = PCI_ANY_ID,
9816 },
9817 {
9818 .vendor = PCI_VENDOR_ID_QLOGIC,
9819 .device = PCI_DEVICE_ID_QLOGIC_ISP4032,
9820 .subvendor = PCI_ANY_ID,
9821 .subdevice = PCI_ANY_ID,
9822 },
9823 {
9824 .vendor = PCI_VENDOR_ID_QLOGIC,
9825 .device = PCI_DEVICE_ID_QLOGIC_ISP8022,
9826 .subvendor = PCI_ANY_ID,
9827 .subdevice = PCI_ANY_ID,
9828 },
9829 {
9830 .vendor = PCI_VENDOR_ID_QLOGIC,
9831 .device = PCI_DEVICE_ID_QLOGIC_ISP8324,
9832 .subvendor = PCI_ANY_ID,
9833 .subdevice = PCI_ANY_ID,
9834 },
9835 {
9836 .vendor = PCI_VENDOR_ID_QLOGIC,
9837 .device = PCI_DEVICE_ID_QLOGIC_ISP8042,
9838 .subvendor = PCI_ANY_ID,
9839 .subdevice = PCI_ANY_ID,
9840 },
9841 {0, 0},
9842 };
9843 MODULE_DEVICE_TABLE(pci, qla4xxx_pci_tbl);
9844
9845 static struct pci_driver qla4xxx_pci_driver = {
9846 .name = DRIVER_NAME,
9847 .id_table = qla4xxx_pci_tbl,
9848 .probe = qla4xxx_probe_adapter,
9849 .remove = qla4xxx_remove_adapter,
9850 .err_handler = &qla4xxx_err_handler,
9851 };
9852
9853 static int __init qla4xxx_module_init(void)
9854 {
9855 int ret;
9856
9857 if (ql4xqfulltracking)
9858 qla4xxx_driver_template.track_queue_depth = 1;
9859
9860 /* Allocate cache for SRBs. */
9861 srb_cachep = kmem_cache_create("qla4xxx_srbs", sizeof(struct srb), 0,
9862 SLAB_HWCACHE_ALIGN, NULL);
9863 if (srb_cachep == NULL) {
9864 printk(KERN_ERR
9865 "%s: Unable to allocate SRB cache..."
9866 "Failing load!\n", DRIVER_NAME);
9867 ret = -ENOMEM;
9868 goto no_srp_cache;
9869 }
9870
9871 /* Derive version string. */
9872 strcpy(qla4xxx_version_str, QLA4XXX_DRIVER_VERSION);
9873 if (ql4xextended_error_logging)
9874 strcat(qla4xxx_version_str, "-debug");
9875
9876 qla4xxx_scsi_transport =
9877 iscsi_register_transport(&qla4xxx_iscsi_transport);
9878 if (!qla4xxx_scsi_transport){
9879 ret = -ENODEV;
9880 goto release_srb_cache;
9881 }
9882
9883 ret = pci_register_driver(&qla4xxx_pci_driver);
9884 if (ret)
9885 goto unregister_transport;
9886
9887 printk(KERN_INFO "QLogic iSCSI HBA Driver\n");
9888 return 0;
9889
9890 unregister_transport:
9891 iscsi_unregister_transport(&qla4xxx_iscsi_transport);
9892 release_srb_cache:
9893 kmem_cache_destroy(srb_cachep);
9894 no_srp_cache:
9895 return ret;
9896 }
9897
9898 static void __exit qla4xxx_module_exit(void)
9899 {
9900 pci_unregister_driver(&qla4xxx_pci_driver);
9901 iscsi_unregister_transport(&qla4xxx_iscsi_transport);
9902 kmem_cache_destroy(srb_cachep);
9903 }
9904
9905 module_init(qla4xxx_module_init);
9906 module_exit(qla4xxx_module_exit);
9907
9908 MODULE_AUTHOR("QLogic Corporation");
9909 MODULE_DESCRIPTION("QLogic iSCSI HBA Driver");
9910 MODULE_LICENSE("GPL");
9911 MODULE_VERSION(QLA4XXX_DRIVER_VERSION);
Linux with added FPC-III support