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x86/mm/pat: Don't report PAT on CPUs that don't support it
[linux/fpc-iii.git] / drivers / scsi / qla4xxx / ql4_os.c
blobac52150d1569a830adfddeb8bbfa5e153feda9e9
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,
6308 "%s: old ISID [%pmR] New ISID [%pmR]\n",
6309 __func__, old_tddb->isid, new_tddb->isid));
6310
6311 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0],
6312 sizeof(old_tddb->isid)))
6313 return QLA_ERROR;
6314 }
6315
6316 DEBUG2(ql4_printk(KERN_INFO, ha,
6317 "Match Found, fw[%d,%d,%s,%s], [%d,%d,%s,%s]",
6318 old_tddb->port, old_tddb->tpgt, old_tddb->ip_addr,
6319 old_tddb->iscsi_name, new_tddb->port, new_tddb->tpgt,
6320 new_tddb->ip_addr, new_tddb->iscsi_name));
6321
6322 return QLA_SUCCESS;
6323 }
6324
6325 static int qla4xxx_is_session_exists(struct scsi_qla_host *ha,
6326 struct dev_db_entry *fw_ddb_entry,
6327 uint32_t *index)
6328 {
6329 struct ddb_entry *ddb_entry;
6330 struct ql4_tuple_ddb *fw_tddb = NULL;
6331 struct ql4_tuple_ddb *tmp_tddb = NULL;
6332 int idx;
6333 int ret = QLA_ERROR;
6334
6335 fw_tddb = vzalloc(sizeof(*fw_tddb));
6336 if (!fw_tddb) {
6337 DEBUG2(ql4_printk(KERN_WARNING, ha,
6338 "Memory Allocation failed.\n"));
6339 ret = QLA_SUCCESS;
6340 goto exit_check;
6341 }
6342
6343 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
6344 if (!tmp_tddb) {
6345 DEBUG2(ql4_printk(KERN_WARNING, ha,
6346 "Memory Allocation failed.\n"));
6347 ret = QLA_SUCCESS;
6348 goto exit_check;
6349 }
6350
6351 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL);
6352
6353 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
6354 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
6355 if (ddb_entry == NULL)
6356 continue;
6357
6358 qla4xxx_get_param_ddb(ddb_entry, tmp_tddb);
6359 if (!qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, false)) {
6360 ret = QLA_SUCCESS; /* found */
6361 if (index != NULL)
6362 *index = idx;
6363 goto exit_check;
6364 }
6365 }
6366
6367 exit_check:
6368 if (fw_tddb)
6369 vfree(fw_tddb);
6370 if (tmp_tddb)
6371 vfree(tmp_tddb);
6372 return ret;
6373 }
6374
6375 /**
6376 * qla4xxx_check_existing_isid - check if target with same isid exist
6377 * in target list
6378 * @list_nt: list of target
6379 * @isid: isid to check
6380 *
6381 * This routine return QLA_SUCCESS if target with same isid exist
6382 **/
6383 static int qla4xxx_check_existing_isid(struct list_head *list_nt, uint8_t *isid)
6384 {
6385 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp;
6386 struct dev_db_entry *fw_ddb_entry;
6387
6388 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
6389 fw_ddb_entry = &nt_ddb_idx->fw_ddb;
6390
6391 if (memcmp(&fw_ddb_entry->isid[0], &isid[0],
6392 sizeof(nt_ddb_idx->fw_ddb.isid)) == 0) {
6393 return QLA_SUCCESS;
6394 }
6395 }
6396 return QLA_ERROR;
6397 }
6398
6399 /**
6400 * qla4xxx_update_isid - compare ddbs and updated isid
6401 * @ha: Pointer to host adapter structure.
6402 * @list_nt: list of nt target
6403 * @fw_ddb_entry: firmware ddb entry
6404 *
6405 * This routine update isid if ddbs have same iqn, same isid and
6406 * different IP addr.
6407 * Return QLA_SUCCESS if isid is updated.
6408 **/
6409 static int qla4xxx_update_isid(struct scsi_qla_host *ha,
6410 struct list_head *list_nt,
6411 struct dev_db_entry *fw_ddb_entry)
6412 {
6413 uint8_t base_value, i;
6414
6415 base_value = fw_ddb_entry->isid[1] & 0x1f;
6416 for (i = 0; i < 8; i++) {
6417 fw_ddb_entry->isid[1] = (base_value | (i << 5));
6418 if (qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid))
6419 break;
6420 }
6421
6422 if (!qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid))
6423 return QLA_ERROR;
6424
6425 return QLA_SUCCESS;
6426 }
6427
6428 /**
6429 * qla4xxx_should_update_isid - check if isid need to update
6430 * @ha: Pointer to host adapter structure.
6431 * @old_tddb: ddb tuple
6432 * @new_tddb: ddb tuple
6433 *
6434 * Return QLA_SUCCESS if different IP, different PORT, same iqn,
6435 * same isid
6436 **/
6437 static int qla4xxx_should_update_isid(struct scsi_qla_host *ha,
6438 struct ql4_tuple_ddb *old_tddb,
6439 struct ql4_tuple_ddb *new_tddb)
6440 {
6441 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr) == 0) {
6442 /* Same ip */
6443 if (old_tddb->port == new_tddb->port)
6444 return QLA_ERROR;
6445 }
6446
6447 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name))
6448 /* different iqn */
6449 return QLA_ERROR;
6450
6451 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0],
6452 sizeof(old_tddb->isid)))
6453 /* different isid */
6454 return QLA_ERROR;
6455
6456 return QLA_SUCCESS;
6457 }
6458
6459 /**
6460 * qla4xxx_is_flash_ddb_exists - check if fw_ddb_entry already exists in list_nt
6461 * @ha: Pointer to host adapter structure.
6462 * @list_nt: list of nt target.
6463 * @fw_ddb_entry: firmware ddb entry.
6464 *
6465 * This routine check if fw_ddb_entry already exists in list_nt to avoid
6466 * duplicate ddb in list_nt.
6467 * Return QLA_SUCCESS if duplicate ddb exit in list_nl.
6468 * Note: This function also update isid of DDB if required.
6469 **/
6470
6471 static int qla4xxx_is_flash_ddb_exists(struct scsi_qla_host *ha,
6472 struct list_head *list_nt,
6473 struct dev_db_entry *fw_ddb_entry)
6474 {
6475 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp;
6476 struct ql4_tuple_ddb *fw_tddb = NULL;
6477 struct ql4_tuple_ddb *tmp_tddb = NULL;
6478 int rval, ret = QLA_ERROR;
6479
6480 fw_tddb = vzalloc(sizeof(*fw_tddb));
6481 if (!fw_tddb) {
6482 DEBUG2(ql4_printk(KERN_WARNING, ha,
6483 "Memory Allocation failed.\n"));
6484 ret = QLA_SUCCESS;
6485 goto exit_check;
6486 }
6487
6488 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
6489 if (!tmp_tddb) {
6490 DEBUG2(ql4_printk(KERN_WARNING, ha,
6491 "Memory Allocation failed.\n"));
6492 ret = QLA_SUCCESS;
6493 goto exit_check;
6494 }
6495
6496 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL);
6497
6498 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
6499 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb,
6500 nt_ddb_idx->flash_isid);
6501 ret = qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, true);
6502 /* found duplicate ddb */
6503 if (ret == QLA_SUCCESS)
6504 goto exit_check;
6505 }
6506
6507 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
6508 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb, NULL);
6509
6510 ret = qla4xxx_should_update_isid(ha, tmp_tddb, fw_tddb);
6511 if (ret == QLA_SUCCESS) {
6512 rval = qla4xxx_update_isid(ha, list_nt, fw_ddb_entry);
6513 if (rval == QLA_SUCCESS)
6514 ret = QLA_ERROR;
6515 else
6516 ret = QLA_SUCCESS;
6517
6518 goto exit_check;
6519 }
6520 }
6521
6522 exit_check:
6523 if (fw_tddb)
6524 vfree(fw_tddb);
6525 if (tmp_tddb)
6526 vfree(tmp_tddb);
6527 return ret;
6528 }
6529
6530 static void qla4xxx_free_ddb_list(struct list_head *list_ddb)
6531 {
6532 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
6533
6534 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
6535 list_del_init(&ddb_idx->list);
6536 vfree(ddb_idx);
6537 }
6538 }
6539
6540 static struct iscsi_endpoint *qla4xxx_get_ep_fwdb(struct scsi_qla_host *ha,
6541 struct dev_db_entry *fw_ddb_entry)
6542 {
6543 struct iscsi_endpoint *ep;
6544 struct sockaddr_in *addr;
6545 struct sockaddr_in6 *addr6;
6546 struct sockaddr *t_addr;
6547 struct sockaddr_storage *dst_addr;
6548 char *ip;
6549
6550 /* TODO: need to destroy on unload iscsi_endpoint*/
6551 dst_addr = vmalloc(sizeof(*dst_addr));
6552 if (!dst_addr)
6553 return NULL;
6554
6555 if (fw_ddb_entry->options & DDB_OPT_IPV6_DEVICE) {
6556 t_addr = (struct sockaddr *)dst_addr;
6557 t_addr->sa_family = AF_INET6;
6558 addr6 = (struct sockaddr_in6 *)dst_addr;
6559 ip = (char *)&addr6->sin6_addr;
6560 memcpy(ip, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN);
6561 addr6->sin6_port = htons(le16_to_cpu(fw_ddb_entry->port));
6562
6563 } else {
6564 t_addr = (struct sockaddr *)dst_addr;
6565 t_addr->sa_family = AF_INET;
6566 addr = (struct sockaddr_in *)dst_addr;
6567 ip = (char *)&addr->sin_addr;
6568 memcpy(ip, fw_ddb_entry->ip_addr, IP_ADDR_LEN);
6569 addr->sin_port = htons(le16_to_cpu(fw_ddb_entry->port));
6570 }
6571
6572 ep = qla4xxx_ep_connect(ha->host, (struct sockaddr *)dst_addr, 0);
6573 vfree(dst_addr);
6574 return ep;
6575 }
6576
6577 static int qla4xxx_verify_boot_idx(struct scsi_qla_host *ha, uint16_t idx)
6578 {
6579 if (ql4xdisablesysfsboot)
6580 return QLA_SUCCESS;
6581 if (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx)
6582 return QLA_ERROR;
6583 return QLA_SUCCESS;
6584 }
6585
6586 static void qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha,
6587 struct ddb_entry *ddb_entry,
6588 uint16_t idx)
6589 {
6590 uint16_t def_timeout;
6591
6592 ddb_entry->ddb_type = FLASH_DDB;
6593 ddb_entry->fw_ddb_index = INVALID_ENTRY;
6594 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE;
6595 ddb_entry->ha = ha;
6596 ddb_entry->unblock_sess = qla4xxx_unblock_flash_ddb;
6597 ddb_entry->ddb_change = qla4xxx_flash_ddb_change;
6598 ddb_entry->chap_tbl_idx = INVALID_ENTRY;
6599
6600 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY);
6601 atomic_set(&ddb_entry->relogin_timer, 0);
6602 atomic_set(&ddb_entry->relogin_retry_count, 0);
6603 def_timeout = le16_to_cpu(ddb_entry->fw_ddb_entry.def_timeout);
6604 ddb_entry->default_relogin_timeout =
6605 (def_timeout > LOGIN_TOV) && (def_timeout < LOGIN_TOV * 10) ?
6606 def_timeout : LOGIN_TOV;
6607 ddb_entry->default_time2wait =
6608 le16_to_cpu(ddb_entry->fw_ddb_entry.iscsi_def_time2wait);
6609
6610 if (ql4xdisablesysfsboot &&
6611 (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx))
6612 set_bit(DF_BOOT_TGT, &ddb_entry->flags);
6613 }
6614
6615 static void qla4xxx_wait_for_ip_configuration(struct scsi_qla_host *ha)
6616 {
6617 uint32_t idx = 0;
6618 uint32_t ip_idx[IP_ADDR_COUNT] = {0, 1, 2, 3}; /* 4 IP interfaces */
6619 uint32_t sts[MBOX_REG_COUNT];
6620 uint32_t ip_state;
6621 unsigned long wtime;
6622 int ret;
6623
6624 wtime = jiffies + (HZ * IP_CONFIG_TOV);
6625 do {
6626 for (idx = 0; idx < IP_ADDR_COUNT; idx++) {
6627 if (ip_idx[idx] == -1)
6628 continue;
6629
6630 ret = qla4xxx_get_ip_state(ha, 0, ip_idx[idx], sts);
6631
6632 if (ret == QLA_ERROR) {
6633 ip_idx[idx] = -1;
6634 continue;
6635 }
6636
6637 ip_state = (sts[1] & IP_STATE_MASK) >> IP_STATE_SHIFT;
6638
6639 DEBUG2(ql4_printk(KERN_INFO, ha,
6640 "Waiting for IP state for idx = %d, state = 0x%x\n",
6641 ip_idx[idx], ip_state));
6642 if (ip_state == IP_ADDRSTATE_UNCONFIGURED ||
6643 ip_state == IP_ADDRSTATE_INVALID ||
6644 ip_state == IP_ADDRSTATE_PREFERRED ||
6645 ip_state == IP_ADDRSTATE_DEPRICATED ||
6646 ip_state == IP_ADDRSTATE_DISABLING)
6647 ip_idx[idx] = -1;
6648 }
6649
6650 /* Break if all IP states checked */
6651 if ((ip_idx[0] == -1) &&
6652 (ip_idx[1] == -1) &&
6653 (ip_idx[2] == -1) &&
6654 (ip_idx[3] == -1))
6655 break;
6656 schedule_timeout_uninterruptible(HZ);
6657 } while (time_after(wtime, jiffies));
6658 }
6659
6660 static int qla4xxx_cmp_fw_stentry(struct dev_db_entry *fw_ddb_entry,
6661 struct dev_db_entry *flash_ddb_entry)
6662 {
6663 uint16_t options = 0;
6664 size_t ip_len = IP_ADDR_LEN;
6665
6666 options = le16_to_cpu(fw_ddb_entry->options);
6667 if (options & DDB_OPT_IPV6_DEVICE)
6668 ip_len = IPv6_ADDR_LEN;
6669
6670 if (memcmp(fw_ddb_entry->ip_addr, flash_ddb_entry->ip_addr, ip_len))
6671 return QLA_ERROR;
6672
6673 if (memcmp(&fw_ddb_entry->isid[0], &flash_ddb_entry->isid[0],
6674 sizeof(fw_ddb_entry->isid)))
6675 return QLA_ERROR;
6676
6677 if (memcmp(&fw_ddb_entry->port, &flash_ddb_entry->port,
6678 sizeof(fw_ddb_entry->port)))
6679 return QLA_ERROR;
6680
6681 return QLA_SUCCESS;
6682 }
6683
6684 static int qla4xxx_find_flash_st_idx(struct scsi_qla_host *ha,
6685 struct dev_db_entry *fw_ddb_entry,
6686 uint32_t fw_idx, uint32_t *flash_index)
6687 {
6688 struct dev_db_entry *flash_ddb_entry;
6689 dma_addr_t flash_ddb_entry_dma;
6690 uint32_t idx = 0;
6691 int max_ddbs;
6692 int ret = QLA_ERROR, status;
6693
6694 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
6695 MAX_DEV_DB_ENTRIES;
6696
6697 flash_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
6698 &flash_ddb_entry_dma);
6699 if (flash_ddb_entry == NULL || fw_ddb_entry == NULL) {
6700 ql4_printk(KERN_ERR, ha, "Out of memory\n");
6701 goto exit_find_st_idx;
6702 }
6703
6704 status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry,
6705 flash_ddb_entry_dma, fw_idx);
6706 if (status == QLA_SUCCESS) {
6707 status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry);
6708 if (status == QLA_SUCCESS) {
6709 *flash_index = fw_idx;
6710 ret = QLA_SUCCESS;
6711 goto exit_find_st_idx;
6712 }
6713 }
6714
6715 for (idx = 0; idx < max_ddbs; idx++) {
6716 status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry,
6717 flash_ddb_entry_dma, idx);
6718 if (status == QLA_ERROR)
6719 continue;
6720
6721 status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry);
6722 if (status == QLA_SUCCESS) {
6723 *flash_index = idx;
6724 ret = QLA_SUCCESS;
6725 goto exit_find_st_idx;
6726 }
6727 }
6728
6729 if (idx == max_ddbs)
6730 ql4_printk(KERN_ERR, ha, "Failed to find ST [%d] in flash\n",
6731 fw_idx);
6732
6733 exit_find_st_idx:
6734 if (flash_ddb_entry)
6735 dma_pool_free(ha->fw_ddb_dma_pool, flash_ddb_entry,
6736 flash_ddb_entry_dma);
6737
6738 return ret;
6739 }
6740
6741 static void qla4xxx_build_st_list(struct scsi_qla_host *ha,
6742 struct list_head *list_st)
6743 {
6744 struct qla_ddb_index *st_ddb_idx;
6745 int max_ddbs;
6746 int fw_idx_size;
6747 struct dev_db_entry *fw_ddb_entry;
6748 dma_addr_t fw_ddb_dma;
6749 int ret;
6750 uint32_t idx = 0, next_idx = 0;
6751 uint32_t state = 0, conn_err = 0;
6752 uint32_t flash_index = -1;
6753 uint16_t conn_id = 0;
6754
6755 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
6756 &fw_ddb_dma);
6757 if (fw_ddb_entry == NULL) {
6758 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
6759 goto exit_st_list;
6760 }
6761
6762 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
6763 MAX_DEV_DB_ENTRIES;
6764 fw_idx_size = sizeof(struct qla_ddb_index);
6765
6766 for (idx = 0; idx < max_ddbs; idx = next_idx) {
6767 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
6768 NULL, &next_idx, &state,
6769 &conn_err, NULL, &conn_id);
6770 if (ret == QLA_ERROR)
6771 break;
6772
6773 /* Ignore DDB if invalid state (unassigned) */
6774 if (state == DDB_DS_UNASSIGNED)
6775 goto continue_next_st;
6776
6777 /* Check if ST, add to the list_st */
6778 if (strlen((char *) fw_ddb_entry->iscsi_name) != 0)
6779 goto continue_next_st;
6780
6781 st_ddb_idx = vzalloc(fw_idx_size);
6782 if (!st_ddb_idx)
6783 break;
6784
6785 ret = qla4xxx_find_flash_st_idx(ha, fw_ddb_entry, idx,
6786 &flash_index);
6787 if (ret == QLA_ERROR) {
6788 ql4_printk(KERN_ERR, ha,
6789 "No flash entry for ST at idx [%d]\n", idx);
6790 st_ddb_idx->flash_ddb_idx = idx;
6791 } else {
6792 ql4_printk(KERN_INFO, ha,
6793 "ST at idx [%d] is stored at flash [%d]\n",
6794 idx, flash_index);
6795 st_ddb_idx->flash_ddb_idx = flash_index;
6796 }
6797
6798 st_ddb_idx->fw_ddb_idx = idx;
6799
6800 list_add_tail(&st_ddb_idx->list, list_st);
6801 continue_next_st:
6802 if (next_idx == 0)
6803 break;
6804 }
6805
6806 exit_st_list:
6807 if (fw_ddb_entry)
6808 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
6809 }
6810
6811 /**
6812 * qla4xxx_remove_failed_ddb - Remove inactive or failed ddb from list
6813 * @ha: pointer to adapter structure
6814 * @list_ddb: List from which failed ddb to be removed
6815 *
6816 * Iterate over the list of DDBs and find and remove DDBs that are either in
6817 * no connection active state or failed state
6818 **/
6819 static void qla4xxx_remove_failed_ddb(struct scsi_qla_host *ha,
6820 struct list_head *list_ddb)
6821 {
6822 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
6823 uint32_t next_idx = 0;
6824 uint32_t state = 0, conn_err = 0;
6825 int ret;
6826
6827 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
6828 ret = qla4xxx_get_fwddb_entry(ha, ddb_idx->fw_ddb_idx,
6829 NULL, 0, NULL, &next_idx, &state,
6830 &conn_err, NULL, NULL);
6831 if (ret == QLA_ERROR)
6832 continue;
6833
6834 if (state == DDB_DS_NO_CONNECTION_ACTIVE ||
6835 state == DDB_DS_SESSION_FAILED) {
6836 list_del_init(&ddb_idx->list);
6837 vfree(ddb_idx);
6838 }
6839 }
6840 }
6841
6842 static void qla4xxx_update_sess_disc_idx(struct scsi_qla_host *ha,
6843 struct ddb_entry *ddb_entry,
6844 struct dev_db_entry *fw_ddb_entry)
6845 {
6846 struct iscsi_cls_session *cls_sess;
6847 struct iscsi_session *sess;
6848 uint32_t max_ddbs = 0;
6849 uint16_t ddb_link = -1;
6850
6851 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
6852 MAX_DEV_DB_ENTRIES;
6853
6854 cls_sess = ddb_entry->sess;
6855 sess = cls_sess->dd_data;
6856
6857 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
6858 if (ddb_link < max_ddbs)
6859 sess->discovery_parent_idx = ddb_link;
6860 else
6861 sess->discovery_parent_idx = DDB_NO_LINK;
6862 }
6863
6864 static int qla4xxx_sess_conn_setup(struct scsi_qla_host *ha,
6865 struct dev_db_entry *fw_ddb_entry,
6866 int is_reset, uint16_t idx)
6867 {
6868 struct iscsi_cls_session *cls_sess;
6869 struct iscsi_session *sess;
6870 struct iscsi_cls_conn *cls_conn;
6871 struct iscsi_endpoint *ep;
6872 uint16_t cmds_max = 32;
6873 uint16_t conn_id = 0;
6874 uint32_t initial_cmdsn = 0;
6875 int ret = QLA_SUCCESS;
6876
6877 struct ddb_entry *ddb_entry = NULL;
6878
6879 /* Create session object, with INVALID_ENTRY,
6880 * the targer_id would get set when we issue the login
6881 */
6882 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, ha->host,
6883 cmds_max, sizeof(struct ddb_entry),
6884 sizeof(struct ql4_task_data),
6885 initial_cmdsn, INVALID_ENTRY);
6886 if (!cls_sess) {
6887 ret = QLA_ERROR;
6888 goto exit_setup;
6889 }
6890
6891 /*
6892 * so calling module_put function to decrement the
6893 * reference count.
6894 **/
6895 module_put(qla4xxx_iscsi_transport.owner);
6896 sess = cls_sess->dd_data;
6897 ddb_entry = sess->dd_data;
6898 ddb_entry->sess = cls_sess;
6899
6900 cls_sess->recovery_tmo = ql4xsess_recovery_tmo;
6901 memcpy(&ddb_entry->fw_ddb_entry, fw_ddb_entry,
6902 sizeof(struct dev_db_entry));
6903
6904 qla4xxx_setup_flash_ddb_entry(ha, ddb_entry, idx);
6905
6906 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), conn_id);
6907
6908 if (!cls_conn) {
6909 ret = QLA_ERROR;
6910 goto exit_setup;
6911 }
6912
6913 ddb_entry->conn = cls_conn;
6914
6915 /* Setup ep, for displaying attributes in sysfs */
6916 ep = qla4xxx_get_ep_fwdb(ha, fw_ddb_entry);
6917 if (ep) {
6918 ep->conn = cls_conn;
6919 cls_conn->ep = ep;
6920 } else {
6921 DEBUG2(ql4_printk(KERN_ERR, ha, "Unable to get ep\n"));
6922 ret = QLA_ERROR;
6923 goto exit_setup;
6924 }
6925
6926 /* Update sess/conn params */
6927 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn);
6928 qla4xxx_update_sess_disc_idx(ha, ddb_entry, fw_ddb_entry);
6929
6930 if (is_reset == RESET_ADAPTER) {
6931 iscsi_block_session(cls_sess);
6932 /* Use the relogin path to discover new devices
6933 * by short-circuting the logic of setting
6934 * timer to relogin - instead set the flags
6935 * to initiate login right away.
6936 */
6937 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
6938 set_bit(DF_RELOGIN, &ddb_entry->flags);
6939 }
6940
6941 exit_setup:
6942 return ret;
6943 }
6944
6945 static void qla4xxx_update_fw_ddb_link(struct scsi_qla_host *ha,
6946 struct list_head *list_ddb,
6947 struct dev_db_entry *fw_ddb_entry)
6948 {
6949 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
6950 uint16_t ddb_link;
6951
6952 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
6953
6954 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
6955 if (ddb_idx->fw_ddb_idx == ddb_link) {
6956 DEBUG2(ql4_printk(KERN_INFO, ha,
6957 "Updating NT parent idx from [%d] to [%d]\n",
6958 ddb_link, ddb_idx->flash_ddb_idx));
6959 fw_ddb_entry->ddb_link =
6960 cpu_to_le16(ddb_idx->flash_ddb_idx);
6961 return;
6962 }
6963 }
6964 }
6965
6966 static void qla4xxx_build_nt_list(struct scsi_qla_host *ha,
6967 struct list_head *list_nt,
6968 struct list_head *list_st,
6969 int is_reset)
6970 {
6971 struct dev_db_entry *fw_ddb_entry;
6972 struct ddb_entry *ddb_entry = NULL;
6973 dma_addr_t fw_ddb_dma;
6974 int max_ddbs;
6975 int fw_idx_size;
6976 int ret;
6977 uint32_t idx = 0, next_idx = 0;
6978 uint32_t state = 0, conn_err = 0;
6979 uint32_t ddb_idx = -1;
6980 uint16_t conn_id = 0;
6981 uint16_t ddb_link = -1;
6982 struct qla_ddb_index *nt_ddb_idx;
6983
6984 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
6985 &fw_ddb_dma);
6986 if (fw_ddb_entry == NULL) {
6987 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
6988 goto exit_nt_list;
6989 }
6990 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
6991 MAX_DEV_DB_ENTRIES;
6992 fw_idx_size = sizeof(struct qla_ddb_index);
6993
6994 for (idx = 0; idx < max_ddbs; idx = next_idx) {
6995 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
6996 NULL, &next_idx, &state,
6997 &conn_err, NULL, &conn_id);
6998 if (ret == QLA_ERROR)
6999 break;
7000
7001 if (qla4xxx_verify_boot_idx(ha, idx) != QLA_SUCCESS)
7002 goto continue_next_nt;
7003
7004 /* Check if NT, then add to list it */
7005 if (strlen((char *) fw_ddb_entry->iscsi_name) == 0)
7006 goto continue_next_nt;
7007
7008 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
7009 if (ddb_link < max_ddbs)
7010 qla4xxx_update_fw_ddb_link(ha, list_st, fw_ddb_entry);
7011
7012 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE ||
7013 state == DDB_DS_SESSION_FAILED) &&
7014 (is_reset == INIT_ADAPTER))
7015 goto continue_next_nt;
7016
7017 DEBUG2(ql4_printk(KERN_INFO, ha,
7018 "Adding DDB to session = 0x%x\n", idx));
7019
7020 if (is_reset == INIT_ADAPTER) {
7021 nt_ddb_idx = vmalloc(fw_idx_size);
7022 if (!nt_ddb_idx)
7023 break;
7024
7025 nt_ddb_idx->fw_ddb_idx = idx;
7026
7027 /* Copy original isid as it may get updated in function
7028 * qla4xxx_update_isid(). We need original isid in
7029 * function qla4xxx_compare_tuple_ddb to find duplicate
7030 * target */
7031 memcpy(&nt_ddb_idx->flash_isid[0],
7032 &fw_ddb_entry->isid[0],
7033 sizeof(nt_ddb_idx->flash_isid));
7034
7035 ret = qla4xxx_is_flash_ddb_exists(ha, list_nt,
7036 fw_ddb_entry);
7037 if (ret == QLA_SUCCESS) {
7038 /* free nt_ddb_idx and do not add to list_nt */
7039 vfree(nt_ddb_idx);
7040 goto continue_next_nt;
7041 }
7042
7043 /* Copy updated isid */
7044 memcpy(&nt_ddb_idx->fw_ddb, fw_ddb_entry,
7045 sizeof(struct dev_db_entry));
7046
7047 list_add_tail(&nt_ddb_idx->list, list_nt);
7048 } else if (is_reset == RESET_ADAPTER) {
7049 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry,
7050 &ddb_idx);
7051 if (ret == QLA_SUCCESS) {
7052 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha,
7053 ddb_idx);
7054 if (ddb_entry != NULL)
7055 qla4xxx_update_sess_disc_idx(ha,
7056 ddb_entry,
7057 fw_ddb_entry);
7058 goto continue_next_nt;
7059 }
7060 }
7061
7062 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, is_reset, idx);
7063 if (ret == QLA_ERROR)
7064 goto exit_nt_list;
7065
7066 continue_next_nt:
7067 if (next_idx == 0)
7068 break;
7069 }
7070
7071 exit_nt_list:
7072 if (fw_ddb_entry)
7073 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
7074 }
7075
7076 static void qla4xxx_build_new_nt_list(struct scsi_qla_host *ha,
7077 struct list_head *list_nt,
7078 uint16_t target_id)
7079 {
7080 struct dev_db_entry *fw_ddb_entry;
7081 dma_addr_t fw_ddb_dma;
7082 int max_ddbs;
7083 int fw_idx_size;
7084 int ret;
7085 uint32_t idx = 0, next_idx = 0;
7086 uint32_t state = 0, conn_err = 0;
7087 uint16_t conn_id = 0;
7088 struct qla_ddb_index *nt_ddb_idx;
7089
7090 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
7091 &fw_ddb_dma);
7092 if (fw_ddb_entry == NULL) {
7093 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
7094 goto exit_new_nt_list;
7095 }
7096 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
7097 MAX_DEV_DB_ENTRIES;
7098 fw_idx_size = sizeof(struct qla_ddb_index);
7099
7100 for (idx = 0; idx < max_ddbs; idx = next_idx) {
7101 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
7102 NULL, &next_idx, &state,
7103 &conn_err, NULL, &conn_id);
7104 if (ret == QLA_ERROR)
7105 break;
7106
7107 /* Check if NT, then add it to list */
7108 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0)
7109 goto continue_next_new_nt;
7110
7111 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE))
7112 goto continue_next_new_nt;
7113
7114 DEBUG2(ql4_printk(KERN_INFO, ha,
7115 "Adding DDB to session = 0x%x\n", idx));
7116
7117 nt_ddb_idx = vmalloc(fw_idx_size);
7118 if (!nt_ddb_idx)
7119 break;
7120
7121 nt_ddb_idx->fw_ddb_idx = idx;
7122
7123 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL);
7124 if (ret == QLA_SUCCESS) {
7125 /* free nt_ddb_idx and do not add to list_nt */
7126 vfree(nt_ddb_idx);
7127 goto continue_next_new_nt;
7128 }
7129
7130 if (target_id < max_ddbs)
7131 fw_ddb_entry->ddb_link = cpu_to_le16(target_id);
7132
7133 list_add_tail(&nt_ddb_idx->list, list_nt);
7134
7135 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER,
7136 idx);
7137 if (ret == QLA_ERROR)
7138 goto exit_new_nt_list;
7139
7140 continue_next_new_nt:
7141 if (next_idx == 0)
7142 break;
7143 }
7144
7145 exit_new_nt_list:
7146 if (fw_ddb_entry)
7147 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
7148 }
7149
7150 /**
7151 * qla4xxx_sysfs_ddb_is_non_persistent - check for non-persistence of ddb entry
7152 * @dev: dev associated with the sysfs entry
7153 * @data: pointer to flashnode session object
7154 *
7155 * Returns:
7156 * 1: if flashnode entry is non-persistent
7157 * 0: if flashnode entry is persistent
7158 **/
7159 static int qla4xxx_sysfs_ddb_is_non_persistent(struct device *dev, void *data)
7160 {
7161 struct iscsi_bus_flash_session *fnode_sess;
7162
7163 if (!iscsi_flashnode_bus_match(dev, NULL))
7164 return 0;
7165
7166 fnode_sess = iscsi_dev_to_flash_session(dev);
7167
7168 return (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT);
7169 }
7170
7171 /**
7172 * qla4xxx_sysfs_ddb_tgt_create - Create sysfs entry for target
7173 * @ha: pointer to host
7174 * @fw_ddb_entry: flash ddb data
7175 * @idx: target index
7176 * @user: if set then this call is made from userland else from kernel
7177 *
7178 * Returns:
7179 * On sucess: QLA_SUCCESS
7180 * On failure: QLA_ERROR
7181 *
7182 * This create separate sysfs entries for session and connection attributes of
7183 * the given fw ddb entry.
7184 * If this is invoked as a result of a userspace call then the entry is marked
7185 * as nonpersistent using flash_state field.
7186 **/
7187 static int qla4xxx_sysfs_ddb_tgt_create(struct scsi_qla_host *ha,
7188 struct dev_db_entry *fw_ddb_entry,
7189 uint16_t *idx, int user)
7190 {
7191 struct iscsi_bus_flash_session *fnode_sess = NULL;
7192 struct iscsi_bus_flash_conn *fnode_conn = NULL;
7193 int rc = QLA_ERROR;
7194
7195 fnode_sess = iscsi_create_flashnode_sess(ha->host, *idx,
7196 &qla4xxx_iscsi_transport, 0);
7197 if (!fnode_sess) {
7198 ql4_printk(KERN_ERR, ha,
7199 "%s: Unable to create session sysfs entry for flashnode %d of host%lu\n",
7200 __func__, *idx, ha->host_no);
7201 goto exit_tgt_create;
7202 }
7203
7204 fnode_conn = iscsi_create_flashnode_conn(ha->host, fnode_sess,
7205 &qla4xxx_iscsi_transport, 0);
7206 if (!fnode_conn) {
7207 ql4_printk(KERN_ERR, ha,
7208 "%s: Unable to create conn sysfs entry for flashnode %d of host%lu\n",
7209 __func__, *idx, ha->host_no);
7210 goto free_sess;
7211 }
7212
7213 if (user) {
7214 fnode_sess->flash_state = DEV_DB_NON_PERSISTENT;
7215 } else {
7216 fnode_sess->flash_state = DEV_DB_PERSISTENT;
7217
7218 if (*idx == ha->pri_ddb_idx || *idx == ha->sec_ddb_idx)
7219 fnode_sess->is_boot_target = 1;
7220 else
7221 fnode_sess->is_boot_target = 0;
7222 }
7223
7224 rc = qla4xxx_copy_from_fwddb_param(fnode_sess, fnode_conn,
7225 fw_ddb_entry);
7226
7227 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n",
7228 __func__, fnode_sess->dev.kobj.name);
7229
7230 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n",
7231 __func__, fnode_conn->dev.kobj.name);
7232
7233 return QLA_SUCCESS;
7234
7235 free_sess:
7236 iscsi_destroy_flashnode_sess(fnode_sess);
7237
7238 exit_tgt_create:
7239 return QLA_ERROR;
7240 }
7241
7242 /**
7243 * qla4xxx_sysfs_ddb_add - Add new ddb entry in flash
7244 * @shost: pointer to host
7245 * @buf: type of ddb entry (ipv4/ipv6)
7246 * @len: length of buf
7247 *
7248 * This creates new ddb entry in the flash by finding first free index and
7249 * storing default ddb there. And then create sysfs entry for the new ddb entry.
7250 **/
7251 static int qla4xxx_sysfs_ddb_add(struct Scsi_Host *shost, const char *buf,
7252 int len)
7253 {
7254 struct scsi_qla_host *ha = to_qla_host(shost);
7255 struct dev_db_entry *fw_ddb_entry = NULL;
7256 dma_addr_t fw_ddb_entry_dma;
7257 struct device *dev;
7258 uint16_t idx = 0;
7259 uint16_t max_ddbs = 0;
7260 uint32_t options = 0;
7261 uint32_t rval = QLA_ERROR;
7262
7263 if (strncasecmp(PORTAL_TYPE_IPV4, buf, 4) &&
7264 strncasecmp(PORTAL_TYPE_IPV6, buf, 4)) {
7265 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Invalid portal type\n",
7266 __func__));
7267 goto exit_ddb_add;
7268 }
7269
7270 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES :
7271 MAX_DEV_DB_ENTRIES;
7272
7273 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7274 &fw_ddb_entry_dma, GFP_KERNEL);
7275 if (!fw_ddb_entry) {
7276 DEBUG2(ql4_printk(KERN_ERR, ha,
7277 "%s: Unable to allocate dma buffer\n",
7278 __func__));
7279 goto exit_ddb_add;
7280 }
7281
7282 dev = iscsi_find_flashnode_sess(ha->host, NULL,
7283 qla4xxx_sysfs_ddb_is_non_persistent);
7284 if (dev) {
7285 ql4_printk(KERN_ERR, ha,
7286 "%s: A non-persistent entry %s found\n",
7287 __func__, dev->kobj.name);
7288 put_device(dev);
7289 goto exit_ddb_add;
7290 }
7291
7292 /* Index 0 and 1 are reserved for boot target entries */
7293 for (idx = 2; idx < max_ddbs; idx++) {
7294 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry,
7295 fw_ddb_entry_dma, idx))
7296 break;
7297 }
7298
7299 if (idx == max_ddbs)
7300 goto exit_ddb_add;
7301
7302 if (!strncasecmp("ipv6", buf, 4))
7303 options |= IPV6_DEFAULT_DDB_ENTRY;
7304
7305 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
7306 if (rval == QLA_ERROR)
7307 goto exit_ddb_add;
7308
7309 rval = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 1);
7310
7311 exit_ddb_add:
7312 if (fw_ddb_entry)
7313 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7314 fw_ddb_entry, fw_ddb_entry_dma);
7315 if (rval == QLA_SUCCESS)
7316 return idx;
7317 else
7318 return -EIO;
7319 }
7320
7321 /**
7322 * qla4xxx_sysfs_ddb_apply - write the target ddb contents to Flash
7323 * @fnode_sess: pointer to session attrs of flash ddb entry
7324 * @fnode_conn: pointer to connection attrs of flash ddb entry
7325 *
7326 * This writes the contents of target ddb buffer to Flash with a valid cookie
7327 * value in order to make the ddb entry persistent.
7328 **/
7329 static int qla4xxx_sysfs_ddb_apply(struct iscsi_bus_flash_session *fnode_sess,
7330 struct iscsi_bus_flash_conn *fnode_conn)
7331 {
7332 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7333 struct scsi_qla_host *ha = to_qla_host(shost);
7334 uint32_t dev_db_start_offset = FLASH_OFFSET_DB_INFO;
7335 struct dev_db_entry *fw_ddb_entry = NULL;
7336 dma_addr_t fw_ddb_entry_dma;
7337 uint32_t options = 0;
7338 int rval = 0;
7339
7340 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7341 &fw_ddb_entry_dma, GFP_KERNEL);
7342 if (!fw_ddb_entry) {
7343 DEBUG2(ql4_printk(KERN_ERR, ha,
7344 "%s: Unable to allocate dma buffer\n",
7345 __func__));
7346 rval = -ENOMEM;
7347 goto exit_ddb_apply;
7348 }
7349
7350 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7351 options |= IPV6_DEFAULT_DDB_ENTRY;
7352
7353 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
7354 if (rval == QLA_ERROR)
7355 goto exit_ddb_apply;
7356
7357 dev_db_start_offset += (fnode_sess->target_id *
7358 sizeof(*fw_ddb_entry));
7359
7360 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry);
7361 fw_ddb_entry->cookie = DDB_VALID_COOKIE;
7362
7363 rval = qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset,
7364 sizeof(*fw_ddb_entry), FLASH_OPT_RMW_COMMIT);
7365
7366 if (rval == QLA_SUCCESS) {
7367 fnode_sess->flash_state = DEV_DB_PERSISTENT;
7368 ql4_printk(KERN_INFO, ha,
7369 "%s: flash node %u of host %lu written to flash\n",
7370 __func__, fnode_sess->target_id, ha->host_no);
7371 } else {
7372 rval = -EIO;
7373 ql4_printk(KERN_ERR, ha,
7374 "%s: Error while writing flash node %u of host %lu to flash\n",
7375 __func__, fnode_sess->target_id, ha->host_no);
7376 }
7377
7378 exit_ddb_apply:
7379 if (fw_ddb_entry)
7380 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7381 fw_ddb_entry, fw_ddb_entry_dma);
7382 return rval;
7383 }
7384
7385 static ssize_t qla4xxx_sysfs_ddb_conn_open(struct scsi_qla_host *ha,
7386 struct dev_db_entry *fw_ddb_entry,
7387 uint16_t idx)
7388 {
7389 struct dev_db_entry *ddb_entry = NULL;
7390 dma_addr_t ddb_entry_dma;
7391 unsigned long wtime;
7392 uint32_t mbx_sts = 0;
7393 uint32_t state = 0, conn_err = 0;
7394 uint16_t tmo = 0;
7395 int ret = 0;
7396
7397 ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*ddb_entry),
7398 &ddb_entry_dma, GFP_KERNEL);
7399 if (!ddb_entry) {
7400 DEBUG2(ql4_printk(KERN_ERR, ha,
7401 "%s: Unable to allocate dma buffer\n",
7402 __func__));
7403 return QLA_ERROR;
7404 }
7405
7406 memcpy(ddb_entry, fw_ddb_entry, sizeof(*ddb_entry));
7407
7408 ret = qla4xxx_set_ddb_entry(ha, idx, ddb_entry_dma, &mbx_sts);
7409 if (ret != QLA_SUCCESS) {
7410 DEBUG2(ql4_printk(KERN_ERR, ha,
7411 "%s: Unable to set ddb entry for index %d\n",
7412 __func__, idx));
7413 goto exit_ddb_conn_open;
7414 }
7415
7416 qla4xxx_conn_open(ha, idx);
7417
7418 /* To ensure that sendtargets is done, wait for at least 12 secs */
7419 tmo = ((ha->def_timeout > LOGIN_TOV) &&
7420 (ha->def_timeout < LOGIN_TOV * 10) ?
7421 ha->def_timeout : LOGIN_TOV);
7422
7423 DEBUG2(ql4_printk(KERN_INFO, ha,
7424 "Default time to wait for login to ddb %d\n", tmo));
7425
7426 wtime = jiffies + (HZ * tmo);
7427 do {
7428 ret = qla4xxx_get_fwddb_entry(ha, idx, NULL, 0, NULL,
7429 NULL, &state, &conn_err, NULL,
7430 NULL);
7431 if (ret == QLA_ERROR)
7432 continue;
7433
7434 if (state == DDB_DS_NO_CONNECTION_ACTIVE ||
7435 state == DDB_DS_SESSION_FAILED)
7436 break;
7437
7438 schedule_timeout_uninterruptible(HZ / 10);
7439 } while (time_after(wtime, jiffies));
7440
7441 exit_ddb_conn_open:
7442 if (ddb_entry)
7443 dma_free_coherent(&ha->pdev->dev, sizeof(*ddb_entry),
7444 ddb_entry, ddb_entry_dma);
7445 return ret;
7446 }
7447
7448 static int qla4xxx_ddb_login_st(struct scsi_qla_host *ha,
7449 struct dev_db_entry *fw_ddb_entry,
7450 uint16_t target_id)
7451 {
7452 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
7453 struct list_head list_nt;
7454 uint16_t ddb_index;
7455 int ret = 0;
7456
7457 if (test_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags)) {
7458 ql4_printk(KERN_WARNING, ha,
7459 "%s: A discovery already in progress!\n", __func__);
7460 return QLA_ERROR;
7461 }
7462
7463 INIT_LIST_HEAD(&list_nt);
7464
7465 set_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags);
7466
7467 ret = qla4xxx_get_ddb_index(ha, &ddb_index);
7468 if (ret == QLA_ERROR)
7469 goto exit_login_st_clr_bit;
7470
7471 ret = qla4xxx_sysfs_ddb_conn_open(ha, fw_ddb_entry, ddb_index);
7472 if (ret == QLA_ERROR)
7473 goto exit_login_st;
7474
7475 qla4xxx_build_new_nt_list(ha, &list_nt, target_id);
7476
7477 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, &list_nt, list) {
7478 list_del_init(&ddb_idx->list);
7479 qla4xxx_clear_ddb_entry(ha, ddb_idx->fw_ddb_idx);
7480 vfree(ddb_idx);
7481 }
7482
7483 exit_login_st:
7484 if (qla4xxx_clear_ddb_entry(ha, ddb_index) == QLA_ERROR) {
7485 ql4_printk(KERN_ERR, ha,
7486 "Unable to clear DDB index = 0x%x\n", ddb_index);
7487 }
7488
7489 clear_bit(ddb_index, ha->ddb_idx_map);
7490
7491 exit_login_st_clr_bit:
7492 clear_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags);
7493 return ret;
7494 }
7495
7496 static int qla4xxx_ddb_login_nt(struct scsi_qla_host *ha,
7497 struct dev_db_entry *fw_ddb_entry,
7498 uint16_t idx)
7499 {
7500 int ret = QLA_ERROR;
7501
7502 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL);
7503 if (ret != QLA_SUCCESS)
7504 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER,
7505 idx);
7506 else
7507 ret = -EPERM;
7508
7509 return ret;
7510 }
7511
7512 /**
7513 * qla4xxx_sysfs_ddb_login - Login to the specified target
7514 * @fnode_sess: pointer to session attrs of flash ddb entry
7515 * @fnode_conn: pointer to connection attrs of flash ddb entry
7516 *
7517 * This logs in to the specified target
7518 **/
7519 static int qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess,
7520 struct iscsi_bus_flash_conn *fnode_conn)
7521 {
7522 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7523 struct scsi_qla_host *ha = to_qla_host(shost);
7524 struct dev_db_entry *fw_ddb_entry = NULL;
7525 dma_addr_t fw_ddb_entry_dma;
7526 uint32_t options = 0;
7527 int ret = 0;
7528
7529 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT) {
7530 ql4_printk(KERN_ERR, ha,
7531 "%s: Target info is not persistent\n", __func__);
7532 ret = -EIO;
7533 goto exit_ddb_login;
7534 }
7535
7536 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7537 &fw_ddb_entry_dma, GFP_KERNEL);
7538 if (!fw_ddb_entry) {
7539 DEBUG2(ql4_printk(KERN_ERR, ha,
7540 "%s: Unable to allocate dma buffer\n",
7541 __func__));
7542 ret = -ENOMEM;
7543 goto exit_ddb_login;
7544 }
7545
7546 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7547 options |= IPV6_DEFAULT_DDB_ENTRY;
7548
7549 ret = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
7550 if (ret == QLA_ERROR)
7551 goto exit_ddb_login;
7552
7553 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry);
7554 fw_ddb_entry->cookie = DDB_VALID_COOKIE;
7555
7556 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0)
7557 ret = qla4xxx_ddb_login_st(ha, fw_ddb_entry,
7558 fnode_sess->target_id);
7559 else
7560 ret = qla4xxx_ddb_login_nt(ha, fw_ddb_entry,
7561 fnode_sess->target_id);
7562
7563 if (ret > 0)
7564 ret = -EIO;
7565
7566 exit_ddb_login:
7567 if (fw_ddb_entry)
7568 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7569 fw_ddb_entry, fw_ddb_entry_dma);
7570 return ret;
7571 }
7572
7573 /**
7574 * qla4xxx_sysfs_ddb_logout_sid - Logout session for the specified target
7575 * @cls_sess: pointer to session to be logged out
7576 *
7577 * This performs session log out from the specified target
7578 **/
7579 static int qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess)
7580 {
7581 struct iscsi_session *sess;
7582 struct ddb_entry *ddb_entry = NULL;
7583 struct scsi_qla_host *ha;
7584 struct dev_db_entry *fw_ddb_entry = NULL;
7585 dma_addr_t fw_ddb_entry_dma;
7586 unsigned long flags;
7587 unsigned long wtime;
7588 uint32_t ddb_state;
7589 int options;
7590 int ret = 0;
7591
7592 sess = cls_sess->dd_data;
7593 ddb_entry = sess->dd_data;
7594 ha = ddb_entry->ha;
7595
7596 if (ddb_entry->ddb_type != FLASH_DDB) {
7597 ql4_printk(KERN_ERR, ha, "%s: Not a flash node session\n",
7598 __func__);
7599 ret = -ENXIO;
7600 goto exit_ddb_logout;
7601 }
7602
7603 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) {
7604 ql4_printk(KERN_ERR, ha,
7605 "%s: Logout from boot target entry is not permitted.\n",
7606 __func__);
7607 ret = -EPERM;
7608 goto exit_ddb_logout;
7609 }
7610
7611 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7612 &fw_ddb_entry_dma, GFP_KERNEL);
7613 if (!fw_ddb_entry) {
7614 ql4_printk(KERN_ERR, ha,
7615 "%s: Unable to allocate dma buffer\n", __func__);
7616 ret = -ENOMEM;
7617 goto exit_ddb_logout;
7618 }
7619
7620 if (test_and_set_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags))
7621 goto ddb_logout_init;
7622
7623 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
7624 fw_ddb_entry, fw_ddb_entry_dma,
7625 NULL, NULL, &ddb_state, NULL,
7626 NULL, NULL);
7627 if (ret == QLA_ERROR)
7628 goto ddb_logout_init;
7629
7630 if (ddb_state == DDB_DS_SESSION_ACTIVE)
7631 goto ddb_logout_init;
7632
7633 /* wait until next relogin is triggered using DF_RELOGIN and
7634 * clear DF_RELOGIN to avoid invocation of further relogin
7635 */
7636 wtime = jiffies + (HZ * RELOGIN_TOV);
7637 do {
7638 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags))
7639 goto ddb_logout_init;
7640
7641 schedule_timeout_uninterruptible(HZ);
7642 } while ((time_after(wtime, jiffies)));
7643
7644 ddb_logout_init:
7645 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY);
7646 atomic_set(&ddb_entry->relogin_timer, 0);
7647
7648 options = LOGOUT_OPTION_CLOSE_SESSION;
7649 qla4xxx_session_logout_ddb(ha, ddb_entry, options);
7650
7651 memset(fw_ddb_entry, 0, sizeof(*fw_ddb_entry));
7652 wtime = jiffies + (HZ * LOGOUT_TOV);
7653 do {
7654 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
7655 fw_ddb_entry, fw_ddb_entry_dma,
7656 NULL, NULL, &ddb_state, NULL,
7657 NULL, NULL);
7658 if (ret == QLA_ERROR)
7659 goto ddb_logout_clr_sess;
7660
7661 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) ||
7662 (ddb_state == DDB_DS_SESSION_FAILED))
7663 goto ddb_logout_clr_sess;
7664
7665 schedule_timeout_uninterruptible(HZ);
7666 } while ((time_after(wtime, jiffies)));
7667
7668 ddb_logout_clr_sess:
7669 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
7670 /*
7671 * we have decremented the reference count of the driver
7672 * when we setup the session to have the driver unload
7673 * to be seamless without actually destroying the
7674 * session
7675 **/
7676 try_module_get(qla4xxx_iscsi_transport.owner);
7677 iscsi_destroy_endpoint(ddb_entry->conn->ep);
7678
7679 spin_lock_irqsave(&ha->hardware_lock, flags);
7680 qla4xxx_free_ddb(ha, ddb_entry);
7681 clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map);
7682 spin_unlock_irqrestore(&ha->hardware_lock, flags);
7683
7684 iscsi_session_teardown(ddb_entry->sess);
7685
7686 clear_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags);
7687 ret = QLA_SUCCESS;
7688
7689 exit_ddb_logout:
7690 if (fw_ddb_entry)
7691 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7692 fw_ddb_entry, fw_ddb_entry_dma);
7693 return ret;
7694 }
7695
7696 /**
7697 * qla4xxx_sysfs_ddb_logout - Logout from the specified target
7698 * @fnode_sess: pointer to session attrs of flash ddb entry
7699 * @fnode_conn: pointer to connection attrs of flash ddb entry
7700 *
7701 * This performs log out from the specified target
7702 **/
7703 static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess,
7704 struct iscsi_bus_flash_conn *fnode_conn)
7705 {
7706 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7707 struct scsi_qla_host *ha = to_qla_host(shost);
7708 struct ql4_tuple_ddb *flash_tddb = NULL;
7709 struct ql4_tuple_ddb *tmp_tddb = NULL;
7710 struct dev_db_entry *fw_ddb_entry = NULL;
7711 struct ddb_entry *ddb_entry = NULL;
7712 dma_addr_t fw_ddb_dma;
7713 uint32_t next_idx = 0;
7714 uint32_t state = 0, conn_err = 0;
7715 uint16_t conn_id = 0;
7716 int idx, index;
7717 int status, ret = 0;
7718
7719 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
7720 &fw_ddb_dma);
7721 if (fw_ddb_entry == NULL) {
7722 ql4_printk(KERN_ERR, ha, "%s:Out of memory\n", __func__);
7723 ret = -ENOMEM;
7724 goto exit_ddb_logout;
7725 }
7726
7727 flash_tddb = vzalloc(sizeof(*flash_tddb));
7728 if (!flash_tddb) {
7729 ql4_printk(KERN_WARNING, ha,
7730 "%s:Memory Allocation failed.\n", __func__);
7731 ret = -ENOMEM;
7732 goto exit_ddb_logout;
7733 }
7734
7735 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
7736 if (!tmp_tddb) {
7737 ql4_printk(KERN_WARNING, ha,
7738 "%s:Memory Allocation failed.\n", __func__);
7739 ret = -ENOMEM;
7740 goto exit_ddb_logout;
7741 }
7742
7743 if (!fnode_sess->targetname) {
7744 ql4_printk(KERN_ERR, ha,
7745 "%s:Cannot logout from SendTarget entry\n",
7746 __func__);
7747 ret = -EPERM;
7748 goto exit_ddb_logout;
7749 }
7750
7751 if (fnode_sess->is_boot_target) {
7752 ql4_printk(KERN_ERR, ha,
7753 "%s: Logout from boot target entry is not permitted.\n",
7754 __func__);
7755 ret = -EPERM;
7756 goto exit_ddb_logout;
7757 }
7758
7759 strlcpy(flash_tddb->iscsi_name, fnode_sess->targetname,
7760 ISCSI_NAME_SIZE);
7761
7762 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7763 sprintf(flash_tddb->ip_addr, "%pI6", fnode_conn->ipaddress);
7764 else
7765 sprintf(flash_tddb->ip_addr, "%pI4", fnode_conn->ipaddress);
7766
7767 flash_tddb->tpgt = fnode_sess->tpgt;
7768 flash_tddb->port = fnode_conn->port;
7769
7770 COPY_ISID(flash_tddb->isid, fnode_sess->isid);
7771
7772 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
7773 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
7774 if (ddb_entry == NULL)
7775 continue;
7776
7777 if (ddb_entry->ddb_type != FLASH_DDB)
7778 continue;
7779
7780 index = ddb_entry->sess->target_id;
7781 status = qla4xxx_get_fwddb_entry(ha, index, fw_ddb_entry,
7782 fw_ddb_dma, NULL, &next_idx,
7783 &state, &conn_err, NULL,
7784 &conn_id);
7785 if (status == QLA_ERROR) {
7786 ret = -ENOMEM;
7787 break;
7788 }
7789
7790 qla4xxx_convert_param_ddb(fw_ddb_entry, tmp_tddb, NULL);
7791
7792 status = qla4xxx_compare_tuple_ddb(ha, flash_tddb, tmp_tddb,
7793 true);
7794 if (status == QLA_SUCCESS) {
7795 ret = qla4xxx_sysfs_ddb_logout_sid(ddb_entry->sess);
7796 break;
7797 }
7798 }
7799
7800 if (idx == MAX_DDB_ENTRIES)
7801 ret = -ESRCH;
7802
7803 exit_ddb_logout:
7804 if (flash_tddb)
7805 vfree(flash_tddb);
7806 if (tmp_tddb)
7807 vfree(tmp_tddb);
7808 if (fw_ddb_entry)
7809 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
7810
7811 return ret;
7812 }
7813
7814 static int
7815 qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session *fnode_sess,
7816 int param, char *buf)
7817 {
7818 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7819 struct scsi_qla_host *ha = to_qla_host(shost);
7820 struct iscsi_bus_flash_conn *fnode_conn;
7821 struct ql4_chap_table chap_tbl;
7822 struct device *dev;
7823 int parent_type;
7824 int rc = 0;
7825
7826 dev = iscsi_find_flashnode_conn(fnode_sess);
7827 if (!dev)
7828 return -EIO;
7829
7830 fnode_conn = iscsi_dev_to_flash_conn(dev);
7831
7832 switch (param) {
7833 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6:
7834 rc = sprintf(buf, "%u\n", fnode_conn->is_fw_assigned_ipv6);
7835 break;
7836 case ISCSI_FLASHNODE_PORTAL_TYPE:
7837 rc = sprintf(buf, "%s\n", fnode_sess->portal_type);
7838 break;
7839 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE:
7840 rc = sprintf(buf, "%u\n", fnode_sess->auto_snd_tgt_disable);
7841 break;
7842 case ISCSI_FLASHNODE_DISCOVERY_SESS:
7843 rc = sprintf(buf, "%u\n", fnode_sess->discovery_sess);
7844 break;
7845 case ISCSI_FLASHNODE_ENTRY_EN:
7846 rc = sprintf(buf, "%u\n", fnode_sess->entry_state);
7847 break;
7848 case ISCSI_FLASHNODE_HDR_DGST_EN:
7849 rc = sprintf(buf, "%u\n", fnode_conn->hdrdgst_en);
7850 break;
7851 case ISCSI_FLASHNODE_DATA_DGST_EN:
7852 rc = sprintf(buf, "%u\n", fnode_conn->datadgst_en);
7853 break;
7854 case ISCSI_FLASHNODE_IMM_DATA_EN:
7855 rc = sprintf(buf, "%u\n", fnode_sess->imm_data_en);
7856 break;
7857 case ISCSI_FLASHNODE_INITIAL_R2T_EN:
7858 rc = sprintf(buf, "%u\n", fnode_sess->initial_r2t_en);
7859 break;
7860 case ISCSI_FLASHNODE_DATASEQ_INORDER:
7861 rc = sprintf(buf, "%u\n", fnode_sess->dataseq_inorder_en);
7862 break;
7863 case ISCSI_FLASHNODE_PDU_INORDER:
7864 rc = sprintf(buf, "%u\n", fnode_sess->pdu_inorder_en);
7865 break;
7866 case ISCSI_FLASHNODE_CHAP_AUTH_EN:
7867 rc = sprintf(buf, "%u\n", fnode_sess->chap_auth_en);
7868 break;
7869 case ISCSI_FLASHNODE_SNACK_REQ_EN:
7870 rc = sprintf(buf, "%u\n", fnode_conn->snack_req_en);
7871 break;
7872 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN:
7873 rc = sprintf(buf, "%u\n", fnode_sess->discovery_logout_en);
7874 break;
7875 case ISCSI_FLASHNODE_BIDI_CHAP_EN:
7876 rc = sprintf(buf, "%u\n", fnode_sess->bidi_chap_en);
7877 break;
7878 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL:
7879 rc = sprintf(buf, "%u\n", fnode_sess->discovery_auth_optional);
7880 break;
7881 case ISCSI_FLASHNODE_ERL:
7882 rc = sprintf(buf, "%u\n", fnode_sess->erl);
7883 break;
7884 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT:
7885 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_stat);
7886 break;
7887 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE:
7888 rc = sprintf(buf, "%u\n", fnode_conn->tcp_nagle_disable);
7889 break;
7890 case ISCSI_FLASHNODE_TCP_WSF_DISABLE:
7891 rc = sprintf(buf, "%u\n", fnode_conn->tcp_wsf_disable);
7892 break;
7893 case ISCSI_FLASHNODE_TCP_TIMER_SCALE:
7894 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timer_scale);
7895 break;
7896 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN:
7897 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_en);
7898 break;
7899 case ISCSI_FLASHNODE_IP_FRAG_DISABLE:
7900 rc = sprintf(buf, "%u\n", fnode_conn->fragment_disable);
7901 break;
7902 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH:
7903 rc = sprintf(buf, "%u\n", fnode_conn->max_recv_dlength);
7904 break;
7905 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH:
7906 rc = sprintf(buf, "%u\n", fnode_conn->max_xmit_dlength);
7907 break;
7908 case ISCSI_FLASHNODE_FIRST_BURST:
7909 rc = sprintf(buf, "%u\n", fnode_sess->first_burst);
7910 break;
7911 case ISCSI_FLASHNODE_DEF_TIME2WAIT:
7912 rc = sprintf(buf, "%u\n", fnode_sess->time2wait);
7913 break;
7914 case ISCSI_FLASHNODE_DEF_TIME2RETAIN:
7915 rc = sprintf(buf, "%u\n", fnode_sess->time2retain);
7916 break;
7917 case ISCSI_FLASHNODE_MAX_R2T:
7918 rc = sprintf(buf, "%u\n", fnode_sess->max_r2t);
7919 break;
7920 case ISCSI_FLASHNODE_KEEPALIVE_TMO:
7921 rc = sprintf(buf, "%u\n", fnode_conn->keepalive_timeout);
7922 break;
7923 case ISCSI_FLASHNODE_ISID:
7924 rc = sprintf(buf, "%pm\n", fnode_sess->isid);
7925 break;
7926 case ISCSI_FLASHNODE_TSID:
7927 rc = sprintf(buf, "%u\n", fnode_sess->tsid);
7928 break;
7929 case ISCSI_FLASHNODE_PORT:
7930 rc = sprintf(buf, "%d\n", fnode_conn->port);
7931 break;
7932 case ISCSI_FLASHNODE_MAX_BURST:
7933 rc = sprintf(buf, "%u\n", fnode_sess->max_burst);
7934 break;
7935 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO:
7936 rc = sprintf(buf, "%u\n",
7937 fnode_sess->default_taskmgmt_timeout);
7938 break;
7939 case ISCSI_FLASHNODE_IPADDR:
7940 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7941 rc = sprintf(buf, "%pI6\n", fnode_conn->ipaddress);
7942 else
7943 rc = sprintf(buf, "%pI4\n", fnode_conn->ipaddress);
7944 break;
7945 case ISCSI_FLASHNODE_ALIAS:
7946 if (fnode_sess->targetalias)
7947 rc = sprintf(buf, "%s\n", fnode_sess->targetalias);
7948 else
7949 rc = sprintf(buf, "\n");
7950 break;
7951 case ISCSI_FLASHNODE_REDIRECT_IPADDR:
7952 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7953 rc = sprintf(buf, "%pI6\n",
7954 fnode_conn->redirect_ipaddr);
7955 else
7956 rc = sprintf(buf, "%pI4\n",
7957 fnode_conn->redirect_ipaddr);
7958 break;
7959 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE:
7960 rc = sprintf(buf, "%u\n", fnode_conn->max_segment_size);
7961 break;
7962 case ISCSI_FLASHNODE_LOCAL_PORT:
7963 rc = sprintf(buf, "%u\n", fnode_conn->local_port);
7964 break;
7965 case ISCSI_FLASHNODE_IPV4_TOS:
7966 rc = sprintf(buf, "%u\n", fnode_conn->ipv4_tos);
7967 break;
7968 case ISCSI_FLASHNODE_IPV6_TC:
7969 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7970 rc = sprintf(buf, "%u\n",
7971 fnode_conn->ipv6_traffic_class);
7972 else
7973 rc = sprintf(buf, "\n");
7974 break;
7975 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL:
7976 rc = sprintf(buf, "%u\n", fnode_conn->ipv6_flow_label);
7977 break;
7978 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6:
7979 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7980 rc = sprintf(buf, "%pI6\n",
7981 fnode_conn->link_local_ipv6_addr);
7982 else
7983 rc = sprintf(buf, "\n");
7984 break;
7985 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX:
7986 rc = sprintf(buf, "%u\n", fnode_sess->discovery_parent_idx);
7987 break;
7988 case ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE:
7989 if (fnode_sess->discovery_parent_type == DDB_ISNS)
7990 parent_type = ISCSI_DISC_PARENT_ISNS;
7991 else if (fnode_sess->discovery_parent_type == DDB_NO_LINK)
7992 parent_type = ISCSI_DISC_PARENT_UNKNOWN;
7993 else if (fnode_sess->discovery_parent_type < MAX_DDB_ENTRIES)
7994 parent_type = ISCSI_DISC_PARENT_SENDTGT;
7995 else
7996 parent_type = ISCSI_DISC_PARENT_UNKNOWN;
7997
7998 rc = sprintf(buf, "%s\n",
7999 iscsi_get_discovery_parent_name(parent_type));
8000 break;
8001 case ISCSI_FLASHNODE_NAME:
8002 if (fnode_sess->targetname)
8003 rc = sprintf(buf, "%s\n", fnode_sess->targetname);
8004 else
8005 rc = sprintf(buf, "\n");
8006 break;
8007 case ISCSI_FLASHNODE_TPGT:
8008 rc = sprintf(buf, "%u\n", fnode_sess->tpgt);
8009 break;
8010 case ISCSI_FLASHNODE_TCP_XMIT_WSF:
8011 rc = sprintf(buf, "%u\n", fnode_conn->tcp_xmit_wsf);
8012 break;
8013 case ISCSI_FLASHNODE_TCP_RECV_WSF:
8014 rc = sprintf(buf, "%u\n", fnode_conn->tcp_recv_wsf);
8015 break;
8016 case ISCSI_FLASHNODE_CHAP_OUT_IDX:
8017 rc = sprintf(buf, "%u\n", fnode_sess->chap_out_idx);
8018 break;
8019 case ISCSI_FLASHNODE_USERNAME:
8020 if (fnode_sess->chap_auth_en) {
8021 qla4xxx_get_uni_chap_at_index(ha,
8022 chap_tbl.name,
8023 chap_tbl.secret,
8024 fnode_sess->chap_out_idx);
8025 rc = sprintf(buf, "%s\n", chap_tbl.name);
8026 } else {
8027 rc = sprintf(buf, "\n");
8028 }
8029 break;
8030 case ISCSI_FLASHNODE_PASSWORD:
8031 if (fnode_sess->chap_auth_en) {
8032 qla4xxx_get_uni_chap_at_index(ha,
8033 chap_tbl.name,
8034 chap_tbl.secret,
8035 fnode_sess->chap_out_idx);
8036 rc = sprintf(buf, "%s\n", chap_tbl.secret);
8037 } else {
8038 rc = sprintf(buf, "\n");
8039 }
8040 break;
8041 case ISCSI_FLASHNODE_STATSN:
8042 rc = sprintf(buf, "%u\n", fnode_conn->statsn);
8043 break;
8044 case ISCSI_FLASHNODE_EXP_STATSN:
8045 rc = sprintf(buf, "%u\n", fnode_conn->exp_statsn);
8046 break;
8047 case ISCSI_FLASHNODE_IS_BOOT_TGT:
8048 rc = sprintf(buf, "%u\n", fnode_sess->is_boot_target);
8049 break;
8050 default:
8051 rc = -ENOSYS;
8052 break;
8053 }
8054
8055 put_device(dev);
8056 return rc;
8057 }
8058
8059 /**
8060 * qla4xxx_sysfs_ddb_set_param - Set parameter for firmware DDB entry
8061 * @fnode_sess: pointer to session attrs of flash ddb entry
8062 * @fnode_conn: pointer to connection attrs of flash ddb entry
8063 * @data: Parameters and their values to update
8064 * @len: len of data
8065 *
8066 * This sets the parameter of flash ddb entry and writes them to flash
8067 **/
8068 static int
8069 qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess,
8070 struct iscsi_bus_flash_conn *fnode_conn,
8071 void *data, int len)
8072 {
8073 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
8074 struct scsi_qla_host *ha = to_qla_host(shost);
8075 struct iscsi_flashnode_param_info *fnode_param;
8076 struct ql4_chap_table chap_tbl;
8077 struct nlattr *attr;
8078 uint16_t chap_out_idx = INVALID_ENTRY;
8079 int rc = QLA_ERROR;
8080 uint32_t rem = len;
8081
8082 memset((void *)&chap_tbl, 0, sizeof(chap_tbl));
8083 nla_for_each_attr(attr, data, len, rem) {
8084 fnode_param = nla_data(attr);
8085
8086 switch (fnode_param->param) {
8087 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6:
8088 fnode_conn->is_fw_assigned_ipv6 = fnode_param->value[0];
8089 break;
8090 case ISCSI_FLASHNODE_PORTAL_TYPE:
8091 memcpy(fnode_sess->portal_type, fnode_param->value,
8092 strlen(fnode_sess->portal_type));
8093 break;
8094 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE:
8095 fnode_sess->auto_snd_tgt_disable =
8096 fnode_param->value[0];
8097 break;
8098 case ISCSI_FLASHNODE_DISCOVERY_SESS:
8099 fnode_sess->discovery_sess = fnode_param->value[0];
8100 break;
8101 case ISCSI_FLASHNODE_ENTRY_EN:
8102 fnode_sess->entry_state = fnode_param->value[0];
8103 break;
8104 case ISCSI_FLASHNODE_HDR_DGST_EN:
8105 fnode_conn->hdrdgst_en = fnode_param->value[0];
8106 break;
8107 case ISCSI_FLASHNODE_DATA_DGST_EN:
8108 fnode_conn->datadgst_en = fnode_param->value[0];
8109 break;
8110 case ISCSI_FLASHNODE_IMM_DATA_EN:
8111 fnode_sess->imm_data_en = fnode_param->value[0];
8112 break;
8113 case ISCSI_FLASHNODE_INITIAL_R2T_EN:
8114 fnode_sess->initial_r2t_en = fnode_param->value[0];
8115 break;
8116 case ISCSI_FLASHNODE_DATASEQ_INORDER:
8117 fnode_sess->dataseq_inorder_en = fnode_param->value[0];
8118 break;
8119 case ISCSI_FLASHNODE_PDU_INORDER:
8120 fnode_sess->pdu_inorder_en = fnode_param->value[0];
8121 break;
8122 case ISCSI_FLASHNODE_CHAP_AUTH_EN:
8123 fnode_sess->chap_auth_en = fnode_param->value[0];
8124 /* Invalidate chap index if chap auth is disabled */
8125 if (!fnode_sess->chap_auth_en)
8126 fnode_sess->chap_out_idx = INVALID_ENTRY;
8127
8128 break;
8129 case ISCSI_FLASHNODE_SNACK_REQ_EN:
8130 fnode_conn->snack_req_en = fnode_param->value[0];
8131 break;
8132 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN:
8133 fnode_sess->discovery_logout_en = fnode_param->value[0];
8134 break;
8135 case ISCSI_FLASHNODE_BIDI_CHAP_EN:
8136 fnode_sess->bidi_chap_en = fnode_param->value[0];
8137 break;
8138 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL:
8139 fnode_sess->discovery_auth_optional =
8140 fnode_param->value[0];
8141 break;
8142 case ISCSI_FLASHNODE_ERL:
8143 fnode_sess->erl = fnode_param->value[0];
8144 break;
8145 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT:
8146 fnode_conn->tcp_timestamp_stat = fnode_param->value[0];
8147 break;
8148 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE:
8149 fnode_conn->tcp_nagle_disable = fnode_param->value[0];
8150 break;
8151 case ISCSI_FLASHNODE_TCP_WSF_DISABLE:
8152 fnode_conn->tcp_wsf_disable = fnode_param->value[0];
8153 break;
8154 case ISCSI_FLASHNODE_TCP_TIMER_SCALE:
8155 fnode_conn->tcp_timer_scale = fnode_param->value[0];
8156 break;
8157 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN:
8158 fnode_conn->tcp_timestamp_en = fnode_param->value[0];
8159 break;
8160 case ISCSI_FLASHNODE_IP_FRAG_DISABLE:
8161 fnode_conn->fragment_disable = fnode_param->value[0];
8162 break;
8163 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH:
8164 fnode_conn->max_recv_dlength =
8165 *(unsigned *)fnode_param->value;
8166 break;
8167 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH:
8168 fnode_conn->max_xmit_dlength =
8169 *(unsigned *)fnode_param->value;
8170 break;
8171 case ISCSI_FLASHNODE_FIRST_BURST:
8172 fnode_sess->first_burst =
8173 *(unsigned *)fnode_param->value;
8174 break;
8175 case ISCSI_FLASHNODE_DEF_TIME2WAIT:
8176 fnode_sess->time2wait = *(uint16_t *)fnode_param->value;
8177 break;
8178 case ISCSI_FLASHNODE_DEF_TIME2RETAIN:
8179 fnode_sess->time2retain =
8180 *(uint16_t *)fnode_param->value;
8181 break;
8182 case ISCSI_FLASHNODE_MAX_R2T:
8183 fnode_sess->max_r2t =
8184 *(uint16_t *)fnode_param->value;
8185 break;
8186 case ISCSI_FLASHNODE_KEEPALIVE_TMO:
8187 fnode_conn->keepalive_timeout =
8188 *(uint16_t *)fnode_param->value;
8189 break;
8190 case ISCSI_FLASHNODE_ISID:
8191 memcpy(fnode_sess->isid, fnode_param->value,
8192 sizeof(fnode_sess->isid));
8193 break;
8194 case ISCSI_FLASHNODE_TSID:
8195 fnode_sess->tsid = *(uint16_t *)fnode_param->value;
8196 break;
8197 case ISCSI_FLASHNODE_PORT:
8198 fnode_conn->port = *(uint16_t *)fnode_param->value;
8199 break;
8200 case ISCSI_FLASHNODE_MAX_BURST:
8201 fnode_sess->max_burst = *(unsigned *)fnode_param->value;
8202 break;
8203 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO:
8204 fnode_sess->default_taskmgmt_timeout =
8205 *(uint16_t *)fnode_param->value;
8206 break;
8207 case ISCSI_FLASHNODE_IPADDR:
8208 memcpy(fnode_conn->ipaddress, fnode_param->value,
8209 IPv6_ADDR_LEN);
8210 break;
8211 case ISCSI_FLASHNODE_ALIAS:
8212 rc = iscsi_switch_str_param(&fnode_sess->targetalias,
8213 (char *)fnode_param->value);
8214 break;
8215 case ISCSI_FLASHNODE_REDIRECT_IPADDR:
8216 memcpy(fnode_conn->redirect_ipaddr, fnode_param->value,
8217 IPv6_ADDR_LEN);
8218 break;
8219 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE:
8220 fnode_conn->max_segment_size =
8221 *(unsigned *)fnode_param->value;
8222 break;
8223 case ISCSI_FLASHNODE_LOCAL_PORT:
8224 fnode_conn->local_port =
8225 *(uint16_t *)fnode_param->value;
8226 break;
8227 case ISCSI_FLASHNODE_IPV4_TOS:
8228 fnode_conn->ipv4_tos = fnode_param->value[0];
8229 break;
8230 case ISCSI_FLASHNODE_IPV6_TC:
8231 fnode_conn->ipv6_traffic_class = fnode_param->value[0];
8232 break;
8233 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL:
8234 fnode_conn->ipv6_flow_label = fnode_param->value[0];
8235 break;
8236 case ISCSI_FLASHNODE_NAME:
8237 rc = iscsi_switch_str_param(&fnode_sess->targetname,
8238 (char *)fnode_param->value);
8239 break;
8240 case ISCSI_FLASHNODE_TPGT:
8241 fnode_sess->tpgt = *(uint16_t *)fnode_param->value;
8242 break;
8243 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6:
8244 memcpy(fnode_conn->link_local_ipv6_addr,
8245 fnode_param->value, IPv6_ADDR_LEN);
8246 break;
8247 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX:
8248 fnode_sess->discovery_parent_idx =
8249 *(uint16_t *)fnode_param->value;
8250 break;
8251 case ISCSI_FLASHNODE_TCP_XMIT_WSF:
8252 fnode_conn->tcp_xmit_wsf =
8253 *(uint8_t *)fnode_param->value;
8254 break;
8255 case ISCSI_FLASHNODE_TCP_RECV_WSF:
8256 fnode_conn->tcp_recv_wsf =
8257 *(uint8_t *)fnode_param->value;
8258 break;
8259 case ISCSI_FLASHNODE_STATSN:
8260 fnode_conn->statsn = *(uint32_t *)fnode_param->value;
8261 break;
8262 case ISCSI_FLASHNODE_EXP_STATSN:
8263 fnode_conn->exp_statsn =
8264 *(uint32_t *)fnode_param->value;
8265 break;
8266 case ISCSI_FLASHNODE_CHAP_OUT_IDX:
8267 chap_out_idx = *(uint16_t *)fnode_param->value;
8268 if (!qla4xxx_get_uni_chap_at_index(ha,
8269 chap_tbl.name,
8270 chap_tbl.secret,
8271 chap_out_idx)) {
8272 fnode_sess->chap_out_idx = chap_out_idx;
8273 /* Enable chap auth if chap index is valid */
8274 fnode_sess->chap_auth_en = QL4_PARAM_ENABLE;
8275 }
8276 break;
8277 default:
8278 ql4_printk(KERN_ERR, ha,
8279 "%s: No such sysfs attribute\n", __func__);
8280 rc = -ENOSYS;
8281 goto exit_set_param;
8282 }
8283 }
8284
8285 rc = qla4xxx_sysfs_ddb_apply(fnode_sess, fnode_conn);
8286
8287 exit_set_param:
8288 return rc;
8289 }
8290
8291 /**
8292 * qla4xxx_sysfs_ddb_delete - Delete firmware DDB entry
8293 * @fnode_sess: pointer to session attrs of flash ddb entry
8294 *
8295 * This invalidates the flash ddb entry at the given index
8296 **/
8297 static int qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess)
8298 {
8299 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
8300 struct scsi_qla_host *ha = to_qla_host(shost);
8301 uint32_t dev_db_start_offset;
8302 uint32_t dev_db_end_offset;
8303 struct dev_db_entry *fw_ddb_entry = NULL;
8304 dma_addr_t fw_ddb_entry_dma;
8305 uint16_t *ddb_cookie = NULL;
8306 size_t ddb_size = 0;
8307 void *pddb = NULL;
8308 int target_id;
8309 int rc = 0;
8310
8311 if (fnode_sess->is_boot_target) {
8312 rc = -EPERM;
8313 DEBUG2(ql4_printk(KERN_ERR, ha,
8314 "%s: Deletion of boot target entry is not permitted.\n",
8315 __func__));
8316 goto exit_ddb_del;
8317 }
8318
8319 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT)
8320 goto sysfs_ddb_del;
8321
8322 if (is_qla40XX(ha)) {
8323 dev_db_start_offset = FLASH_OFFSET_DB_INFO;
8324 dev_db_end_offset = FLASH_OFFSET_DB_END;
8325 dev_db_start_offset += (fnode_sess->target_id *
8326 sizeof(*fw_ddb_entry));
8327 ddb_size = sizeof(*fw_ddb_entry);
8328 } else {
8329 dev_db_start_offset = FLASH_RAW_ACCESS_ADDR +
8330 (ha->hw.flt_region_ddb << 2);
8331 /* flt_ddb_size is DDB table size for both ports
8332 * so divide it by 2 to calculate the offset for second port
8333 */
8334 if (ha->port_num == 1)
8335 dev_db_start_offset += (ha->hw.flt_ddb_size / 2);
8336
8337 dev_db_end_offset = dev_db_start_offset +
8338 (ha->hw.flt_ddb_size / 2);
8339
8340 dev_db_start_offset += (fnode_sess->target_id *
8341 sizeof(*fw_ddb_entry));
8342 dev_db_start_offset += offsetof(struct dev_db_entry, cookie);
8343
8344 ddb_size = sizeof(*ddb_cookie);
8345 }
8346
8347 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: start offset=%u, end offset=%u\n",
8348 __func__, dev_db_start_offset, dev_db_end_offset));
8349
8350 if (dev_db_start_offset > dev_db_end_offset) {
8351 rc = -EIO;
8352 DEBUG2(ql4_printk(KERN_ERR, ha, "%s:Invalid DDB index %u\n",
8353 __func__, fnode_sess->target_id));
8354 goto exit_ddb_del;
8355 }
8356
8357 pddb = dma_alloc_coherent(&ha->pdev->dev, ddb_size,
8358 &fw_ddb_entry_dma, GFP_KERNEL);
8359 if (!pddb) {
8360 rc = -ENOMEM;
8361 DEBUG2(ql4_printk(KERN_ERR, ha,
8362 "%s: Unable to allocate dma buffer\n",
8363 __func__));
8364 goto exit_ddb_del;
8365 }
8366
8367 if (is_qla40XX(ha)) {
8368 fw_ddb_entry = pddb;
8369 memset(fw_ddb_entry, 0, ddb_size);
8370 ddb_cookie = &fw_ddb_entry->cookie;
8371 } else {
8372 ddb_cookie = pddb;
8373 }
8374
8375 /* invalidate the cookie */
8376 *ddb_cookie = 0xFFEE;
8377 qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset,
8378 ddb_size, FLASH_OPT_RMW_COMMIT);
8379
8380 sysfs_ddb_del:
8381 target_id = fnode_sess->target_id;
8382 iscsi_destroy_flashnode_sess(fnode_sess);
8383 ql4_printk(KERN_INFO, ha,
8384 "%s: session and conn entries for flashnode %u of host %lu deleted\n",
8385 __func__, target_id, ha->host_no);
8386 exit_ddb_del:
8387 if (pddb)
8388 dma_free_coherent(&ha->pdev->dev, ddb_size, pddb,
8389 fw_ddb_entry_dma);
8390 return rc;
8391 }
8392
8393 /**
8394 * qla4xxx_sysfs_ddb_export - Create sysfs entries for firmware DDBs
8395 * @ha: pointer to adapter structure
8396 *
8397 * Export the firmware DDB for all send targets and normal targets to sysfs.
8398 **/
8399 int qla4xxx_sysfs_ddb_export(struct scsi_qla_host *ha)
8400 {
8401 struct dev_db_entry *fw_ddb_entry = NULL;
8402 dma_addr_t fw_ddb_entry_dma;
8403 uint16_t max_ddbs;
8404 uint16_t idx = 0;
8405 int ret = QLA_SUCCESS;
8406
8407 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev,
8408 sizeof(*fw_ddb_entry),
8409 &fw_ddb_entry_dma, GFP_KERNEL);
8410 if (!fw_ddb_entry) {
8411 DEBUG2(ql4_printk(KERN_ERR, ha,
8412 "%s: Unable to allocate dma buffer\n",
8413 __func__));
8414 return -ENOMEM;
8415 }
8416
8417 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES :
8418 MAX_DEV_DB_ENTRIES;
8419
8420 for (idx = 0; idx < max_ddbs; idx++) {
8421 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry, fw_ddb_entry_dma,
8422 idx))
8423 continue;
8424
8425 ret = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 0);
8426 if (ret) {
8427 ret = -EIO;
8428 break;
8429 }
8430 }
8431
8432 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry,
8433 fw_ddb_entry_dma);
8434
8435 return ret;
8436 }
8437
8438 static void qla4xxx_sysfs_ddb_remove(struct scsi_qla_host *ha)
8439 {
8440 iscsi_destroy_all_flashnode(ha->host);
8441 }
8442
8443 /**
8444 * qla4xxx_build_ddb_list - Build ddb list and setup sessions
8445 * @ha: pointer to adapter structure
8446 * @is_reset: Is this init path or reset path
8447 *
8448 * Create a list of sendtargets (st) from firmware DDBs, issue send targets
8449 * using connection open, then create the list of normal targets (nt)
8450 * from firmware DDBs. Based on the list of nt setup session and connection
8451 * objects.
8452 **/
8453 void qla4xxx_build_ddb_list(struct scsi_qla_host *ha, int is_reset)
8454 {
8455 uint16_t tmo = 0;
8456 struct list_head list_st, list_nt;
8457 struct qla_ddb_index *st_ddb_idx, *st_ddb_idx_tmp;
8458 unsigned long wtime;
8459
8460 if (!test_bit(AF_LINK_UP, &ha->flags)) {
8461 set_bit(AF_BUILD_DDB_LIST, &ha->flags);
8462 ha->is_reset = is_reset;
8463 return;
8464 }
8465
8466 INIT_LIST_HEAD(&list_st);
8467 INIT_LIST_HEAD(&list_nt);
8468
8469 qla4xxx_build_st_list(ha, &list_st);
8470
8471 /* Before issuing conn open mbox, ensure all IPs states are configured
8472 * Note, conn open fails if IPs are not configured
8473 */
8474 qla4xxx_wait_for_ip_configuration(ha);
8475
8476 /* Go thru the STs and fire the sendtargets by issuing conn open mbx */
8477 list_for_each_entry_safe(st_ddb_idx, st_ddb_idx_tmp, &list_st, list) {
8478 qla4xxx_conn_open(ha, st_ddb_idx->fw_ddb_idx);
8479 }
8480
8481 /* Wait to ensure all sendtargets are done for min 12 sec wait */
8482 tmo = ((ha->def_timeout > LOGIN_TOV) &&
8483 (ha->def_timeout < LOGIN_TOV * 10) ?
8484 ha->def_timeout : LOGIN_TOV);
8485
8486 DEBUG2(ql4_printk(KERN_INFO, ha,
8487 "Default time to wait for build ddb %d\n", tmo));
8488
8489 wtime = jiffies + (HZ * tmo);
8490 do {
8491 if (list_empty(&list_st))
8492 break;
8493
8494 qla4xxx_remove_failed_ddb(ha, &list_st);
8495 schedule_timeout_uninterruptible(HZ / 10);
8496 } while (time_after(wtime, jiffies));
8497
8498
8499 qla4xxx_build_nt_list(ha, &list_nt, &list_st, is_reset);
8500
8501 qla4xxx_free_ddb_list(&list_st);
8502 qla4xxx_free_ddb_list(&list_nt);
8503
8504 qla4xxx_free_ddb_index(ha);
8505 }
8506
8507 /**
8508 * qla4xxx_wait_login_resp_boot_tgt - Wait for iSCSI boot target login
8509 * response.
8510 * @ha: pointer to adapter structure
8511 *
8512 * When the boot entry is normal iSCSI target then DF_BOOT_TGT flag will be
8513 * set in DDB and we will wait for login response of boot targets during
8514 * probe.
8515 **/
8516 static void qla4xxx_wait_login_resp_boot_tgt(struct scsi_qla_host *ha)
8517 {
8518 struct ddb_entry *ddb_entry;
8519 struct dev_db_entry *fw_ddb_entry = NULL;
8520 dma_addr_t fw_ddb_entry_dma;
8521 unsigned long wtime;
8522 uint32_t ddb_state;
8523 int max_ddbs, idx, ret;
8524
8525 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
8526 MAX_DEV_DB_ENTRIES;
8527
8528 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8529 &fw_ddb_entry_dma, GFP_KERNEL);
8530 if (!fw_ddb_entry) {
8531 ql4_printk(KERN_ERR, ha,
8532 "%s: Unable to allocate dma buffer\n", __func__);
8533 goto exit_login_resp;
8534 }
8535
8536 wtime = jiffies + (HZ * BOOT_LOGIN_RESP_TOV);
8537
8538 for (idx = 0; idx < max_ddbs; idx++) {
8539 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
8540 if (ddb_entry == NULL)
8541 continue;
8542
8543 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) {
8544 DEBUG2(ql4_printk(KERN_INFO, ha,
8545 "%s: DDB index [%d]\n", __func__,
8546 ddb_entry->fw_ddb_index));
8547 do {
8548 ret = qla4xxx_get_fwddb_entry(ha,
8549 ddb_entry->fw_ddb_index,
8550 fw_ddb_entry, fw_ddb_entry_dma,
8551 NULL, NULL, &ddb_state, NULL,
8552 NULL, NULL);
8553 if (ret == QLA_ERROR)
8554 goto exit_login_resp;
8555
8556 if ((ddb_state == DDB_DS_SESSION_ACTIVE) ||
8557 (ddb_state == DDB_DS_SESSION_FAILED))
8558 break;
8559
8560 schedule_timeout_uninterruptible(HZ);
8561
8562 } while ((time_after(wtime, jiffies)));
8563
8564 if (!time_after(wtime, jiffies)) {
8565 DEBUG2(ql4_printk(KERN_INFO, ha,
8566 "%s: Login response wait timer expired\n",
8567 __func__));
8568 goto exit_login_resp;
8569 }
8570 }
8571 }
8572
8573 exit_login_resp:
8574 if (fw_ddb_entry)
8575 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8576 fw_ddb_entry, fw_ddb_entry_dma);
8577 }
8578
8579 /**
8580 * qla4xxx_probe_adapter - callback function to probe HBA
8581 * @pdev: pointer to pci_dev structure
8582 * @pci_device_id: pointer to pci_device entry
8583 *
8584 * This routine will probe for Qlogic 4xxx iSCSI host adapters.
8585 * It returns zero if successful. It also initializes all data necessary for
8586 * the driver.
8587 **/
8588 static int qla4xxx_probe_adapter(struct pci_dev *pdev,
8589 const struct pci_device_id *ent)
8590 {
8591 int ret = -ENODEV, status;
8592 struct Scsi_Host *host;
8593 struct scsi_qla_host *ha;
8594 uint8_t init_retry_count = 0;
8595 char buf[34];
8596 struct qla4_8xxx_legacy_intr_set *nx_legacy_intr;
8597 uint32_t dev_state;
8598
8599 if (pci_enable_device(pdev))
8600 return -1;
8601
8602 host = iscsi_host_alloc(&qla4xxx_driver_template, sizeof(*ha), 0);
8603 if (host == NULL) {
8604 printk(KERN_WARNING
8605 "qla4xxx: Couldn't allocate host from scsi layer!\n");
8606 goto probe_disable_device;
8607 }
8608
8609 /* Clear our data area */
8610 ha = to_qla_host(host);
8611 memset(ha, 0, sizeof(*ha));
8612
8613 /* Save the information from PCI BIOS. */
8614 ha->pdev = pdev;
8615 ha->host = host;
8616 ha->host_no = host->host_no;
8617 ha->func_num = PCI_FUNC(ha->pdev->devfn);
8618
8619 pci_enable_pcie_error_reporting(pdev);
8620
8621 /* Setup Runtime configurable options */
8622 if (is_qla8022(ha)) {
8623 ha->isp_ops = &qla4_82xx_isp_ops;
8624 ha->reg_tbl = (uint32_t *) qla4_82xx_reg_tbl;
8625 ha->qdr_sn_window = -1;
8626 ha->ddr_mn_window = -1;
8627 ha->curr_window = 255;
8628 nx_legacy_intr = &legacy_intr[ha->func_num];
8629 ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit;
8630 ha->nx_legacy_intr.tgt_status_reg =
8631 nx_legacy_intr->tgt_status_reg;
8632 ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg;
8633 ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg;
8634 } else if (is_qla8032(ha) || is_qla8042(ha)) {
8635 ha->isp_ops = &qla4_83xx_isp_ops;
8636 ha->reg_tbl = (uint32_t *)qla4_83xx_reg_tbl;
8637 } else {
8638 ha->isp_ops = &qla4xxx_isp_ops;
8639 }
8640
8641 if (is_qla80XX(ha)) {
8642 rwlock_init(&ha->hw_lock);
8643 ha->pf_bit = ha->func_num << 16;
8644 /* Set EEH reset type to fundamental if required by hba */
8645 pdev->needs_freset = 1;
8646 }
8647
8648 /* Configure PCI I/O space. */
8649 ret = ha->isp_ops->iospace_config(ha);
8650 if (ret)
8651 goto probe_failed_ioconfig;
8652
8653 ql4_printk(KERN_INFO, ha, "Found an ISP%04x, irq %d, iobase 0x%p\n",
8654 pdev->device, pdev->irq, ha->reg);
8655
8656 qla4xxx_config_dma_addressing(ha);
8657
8658 /* Initialize lists and spinlocks. */
8659 INIT_LIST_HEAD(&ha->free_srb_q);
8660
8661 mutex_init(&ha->mbox_sem);
8662 mutex_init(&ha->chap_sem);
8663 init_completion(&ha->mbx_intr_comp);
8664 init_completion(&ha->disable_acb_comp);
8665 init_completion(&ha->idc_comp);
8666 init_completion(&ha->link_up_comp);
8667 init_completion(&ha->disable_acb_comp);
8668
8669 spin_lock_init(&ha->hardware_lock);
8670 spin_lock_init(&ha->work_lock);
8671
8672 /* Initialize work list */
8673 INIT_LIST_HEAD(&ha->work_list);
8674
8675 /* Allocate dma buffers */
8676 if (qla4xxx_mem_alloc(ha)) {
8677 ql4_printk(KERN_WARNING, ha,
8678 "[ERROR] Failed to allocate memory for adapter\n");
8679
8680 ret = -ENOMEM;
8681 goto probe_failed;
8682 }
8683
8684 host->cmd_per_lun = 3;
8685 host->max_channel = 0;
8686 host->max_lun = MAX_LUNS - 1;
8687 host->max_id = MAX_TARGETS;
8688 host->max_cmd_len = IOCB_MAX_CDB_LEN;
8689 host->can_queue = MAX_SRBS ;
8690 host->transportt = qla4xxx_scsi_transport;
8691
8692 pci_set_drvdata(pdev, ha);
8693
8694 ret = scsi_add_host(host, &pdev->dev);
8695 if (ret)
8696 goto probe_failed;
8697
8698 if (is_qla80XX(ha))
8699 qla4_8xxx_get_flash_info(ha);
8700
8701 if (is_qla8032(ha) || is_qla8042(ha)) {
8702 qla4_83xx_read_reset_template(ha);
8703 /*
8704 * NOTE: If ql4dontresethba==1, set IDC_CTRL DONTRESET_BIT0.
8705 * If DONRESET_BIT0 is set, drivers should not set dev_state
8706 * to NEED_RESET. But if NEED_RESET is set, drivers should
8707 * should honor the reset.
8708 */
8709 if (ql4xdontresethba == 1)
8710 qla4_83xx_set_idc_dontreset(ha);
8711 }
8712
8713 /*
8714 * Initialize the Host adapter request/response queues and
8715 * firmware
8716 * NOTE: interrupts enabled upon successful completion
8717 */
8718 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER);
8719
8720 /* Dont retry adapter initialization if IRQ allocation failed */
8721 if (is_qla80XX(ha) && (status == QLA_ERROR))
8722 goto skip_retry_init;
8723
8724 while ((!test_bit(AF_ONLINE, &ha->flags)) &&
8725 init_retry_count++ < MAX_INIT_RETRIES) {
8726
8727 if (is_qla80XX(ha)) {
8728 ha->isp_ops->idc_lock(ha);
8729 dev_state = qla4_8xxx_rd_direct(ha,
8730 QLA8XXX_CRB_DEV_STATE);
8731 ha->isp_ops->idc_unlock(ha);
8732 if (dev_state == QLA8XXX_DEV_FAILED) {
8733 ql4_printk(KERN_WARNING, ha, "%s: don't retry "
8734 "initialize adapter. H/W is in failed state\n",
8735 __func__);
8736 break;
8737 }
8738 }
8739 DEBUG2(printk("scsi: %s: retrying adapter initialization "
8740 "(%d)\n", __func__, init_retry_count));
8741
8742 if (ha->isp_ops->reset_chip(ha) == QLA_ERROR)
8743 continue;
8744
8745 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER);
8746 if (is_qla80XX(ha) && (status == QLA_ERROR)) {
8747 if (qla4_8xxx_check_init_adapter_retry(ha) == QLA_ERROR)
8748 goto skip_retry_init;
8749 }
8750 }
8751
8752 skip_retry_init:
8753 if (!test_bit(AF_ONLINE, &ha->flags)) {
8754 ql4_printk(KERN_WARNING, ha, "Failed to initialize adapter\n");
8755
8756 if ((is_qla8022(ha) && ql4xdontresethba) ||
8757 ((is_qla8032(ha) || is_qla8042(ha)) &&
8758 qla4_83xx_idc_dontreset(ha))) {
8759 /* Put the device in failed state. */
8760 DEBUG2(printk(KERN_ERR "HW STATE: FAILED\n"));
8761 ha->isp_ops->idc_lock(ha);
8762 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
8763 QLA8XXX_DEV_FAILED);
8764 ha->isp_ops->idc_unlock(ha);
8765 }
8766 ret = -ENODEV;
8767 goto remove_host;
8768 }
8769
8770 /* Startup the kernel thread for this host adapter. */
8771 DEBUG2(printk("scsi: %s: Starting kernel thread for "
8772 "qla4xxx_dpc\n", __func__));
8773 sprintf(buf, "qla4xxx_%lu_dpc", ha->host_no);
8774 ha->dpc_thread = create_singlethread_workqueue(buf);
8775 if (!ha->dpc_thread) {
8776 ql4_printk(KERN_WARNING, ha, "Unable to start DPC thread!\n");
8777 ret = -ENODEV;
8778 goto remove_host;
8779 }
8780 INIT_WORK(&ha->dpc_work, qla4xxx_do_dpc);
8781
8782 ha->task_wq = alloc_workqueue("qla4xxx_%lu_task", WQ_MEM_RECLAIM, 1,
8783 ha->host_no);
8784 if (!ha->task_wq) {
8785 ql4_printk(KERN_WARNING, ha, "Unable to start task thread!\n");
8786 ret = -ENODEV;
8787 goto remove_host;
8788 }
8789
8790 /*
8791 * For ISP-8XXX, request_irqs is called in qla4_8xxx_load_risc
8792 * (which is called indirectly by qla4xxx_initialize_adapter),
8793 * so that irqs will be registered after crbinit but before
8794 * mbx_intr_enable.
8795 */
8796 if (is_qla40XX(ha)) {
8797 ret = qla4xxx_request_irqs(ha);
8798 if (ret) {
8799 ql4_printk(KERN_WARNING, ha, "Failed to reserve "
8800 "interrupt %d already in use.\n", pdev->irq);
8801 goto remove_host;
8802 }
8803 }
8804
8805 pci_save_state(ha->pdev);
8806 ha->isp_ops->enable_intrs(ha);
8807
8808 /* Start timer thread. */
8809 qla4xxx_start_timer(ha, qla4xxx_timer, 1);
8810
8811 set_bit(AF_INIT_DONE, &ha->flags);
8812
8813 qla4_8xxx_alloc_sysfs_attr(ha);
8814
8815 printk(KERN_INFO
8816 " QLogic iSCSI HBA Driver version: %s\n"
8817 " QLogic ISP%04x @ %s, host#=%ld, fw=%02d.%02d.%02d.%02d\n",
8818 qla4xxx_version_str, ha->pdev->device, pci_name(ha->pdev),
8819 ha->host_no, ha->fw_info.fw_major, ha->fw_info.fw_minor,
8820 ha->fw_info.fw_patch, ha->fw_info.fw_build);
8821
8822 /* Set the driver version */
8823 if (is_qla80XX(ha))
8824 qla4_8xxx_set_param(ha, SET_DRVR_VERSION);
8825
8826 if (qla4xxx_setup_boot_info(ha))
8827 ql4_printk(KERN_ERR, ha,
8828 "%s: No iSCSI boot target configured\n", __func__);
8829
8830 set_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags);
8831 /* Perform the build ddb list and login to each */
8832 qla4xxx_build_ddb_list(ha, INIT_ADAPTER);
8833 iscsi_host_for_each_session(ha->host, qla4xxx_login_flash_ddb);
8834 qla4xxx_wait_login_resp_boot_tgt(ha);
8835
8836 qla4xxx_create_chap_list(ha);
8837
8838 qla4xxx_create_ifaces(ha);
8839 return 0;
8840
8841 remove_host:
8842 scsi_remove_host(ha->host);
8843
8844 probe_failed:
8845 qla4xxx_free_adapter(ha);
8846
8847 probe_failed_ioconfig:
8848 pci_disable_pcie_error_reporting(pdev);
8849 scsi_host_put(ha->host);
8850
8851 probe_disable_device:
8852 pci_disable_device(pdev);
8853
8854 return ret;
8855 }
8856
8857 /**
8858 * qla4xxx_prevent_other_port_reinit - prevent other port from re-initialize
8859 * @ha: pointer to adapter structure
8860 *
8861 * Mark the other ISP-4xxx port to indicate that the driver is being removed,
8862 * so that the other port will not re-initialize while in the process of
8863 * removing the ha due to driver unload or hba hotplug.
8864 **/
8865 static void qla4xxx_prevent_other_port_reinit(struct scsi_qla_host *ha)
8866 {
8867 struct scsi_qla_host *other_ha = NULL;
8868 struct pci_dev *other_pdev = NULL;
8869 int fn = ISP4XXX_PCI_FN_2;
8870
8871 /*iscsi function numbers for ISP4xxx is 1 and 3*/
8872 if (PCI_FUNC(ha->pdev->devfn) & BIT_1)
8873 fn = ISP4XXX_PCI_FN_1;
8874
8875 other_pdev =
8876 pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus),
8877 ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
8878 fn));
8879
8880 /* Get other_ha if other_pdev is valid and state is enable*/
8881 if (other_pdev) {
8882 if (atomic_read(&other_pdev->enable_cnt)) {
8883 other_ha = pci_get_drvdata(other_pdev);
8884 if (other_ha) {
8885 set_bit(AF_HA_REMOVAL, &other_ha->flags);
8886 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: "
8887 "Prevent %s reinit\n", __func__,
8888 dev_name(&other_ha->pdev->dev)));
8889 }
8890 }
8891 pci_dev_put(other_pdev);
8892 }
8893 }
8894
8895 static void qla4xxx_destroy_ddb(struct scsi_qla_host *ha,
8896 struct ddb_entry *ddb_entry)
8897 {
8898 struct dev_db_entry *fw_ddb_entry = NULL;
8899 dma_addr_t fw_ddb_entry_dma;
8900 unsigned long wtime;
8901 uint32_t ddb_state;
8902 int options;
8903 int status;
8904
8905 options = LOGOUT_OPTION_CLOSE_SESSION;
8906 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR) {
8907 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__);
8908 goto clear_ddb;
8909 }
8910
8911 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8912 &fw_ddb_entry_dma, GFP_KERNEL);
8913 if (!fw_ddb_entry) {
8914 ql4_printk(KERN_ERR, ha,
8915 "%s: Unable to allocate dma buffer\n", __func__);
8916 goto clear_ddb;
8917 }
8918
8919 wtime = jiffies + (HZ * LOGOUT_TOV);
8920 do {
8921 status = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
8922 fw_ddb_entry, fw_ddb_entry_dma,
8923 NULL, NULL, &ddb_state, NULL,
8924 NULL, NULL);
8925 if (status == QLA_ERROR)
8926 goto free_ddb;
8927
8928 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) ||
8929 (ddb_state == DDB_DS_SESSION_FAILED))
8930 goto free_ddb;
8931
8932 schedule_timeout_uninterruptible(HZ);
8933 } while ((time_after(wtime, jiffies)));
8934
8935 free_ddb:
8936 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8937 fw_ddb_entry, fw_ddb_entry_dma);
8938 clear_ddb:
8939 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
8940 }
8941
8942 static void qla4xxx_destroy_fw_ddb_session(struct scsi_qla_host *ha)
8943 {
8944 struct ddb_entry *ddb_entry;
8945 int idx;
8946
8947 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
8948
8949 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
8950 if ((ddb_entry != NULL) &&
8951 (ddb_entry->ddb_type == FLASH_DDB)) {
8952
8953 qla4xxx_destroy_ddb(ha, ddb_entry);
8954 /*
8955 * we have decremented the reference count of the driver
8956 * when we setup the session to have the driver unload
8957 * to be seamless without actually destroying the
8958 * session
8959 **/
8960 try_module_get(qla4xxx_iscsi_transport.owner);
8961 iscsi_destroy_endpoint(ddb_entry->conn->ep);
8962 qla4xxx_free_ddb(ha, ddb_entry);
8963 iscsi_session_teardown(ddb_entry->sess);
8964 }
8965 }
8966 }
8967 /**
8968 * qla4xxx_remove_adapter - callback function to remove adapter.
8969 * @pci_dev: PCI device pointer
8970 **/
8971 static void qla4xxx_remove_adapter(struct pci_dev *pdev)
8972 {
8973 struct scsi_qla_host *ha;
8974
8975 /*
8976 * If the PCI device is disabled then it means probe_adapter had
8977 * failed and resources already cleaned up on probe_adapter exit.
8978 */
8979 if (!pci_is_enabled(pdev))
8980 return;
8981
8982 ha = pci_get_drvdata(pdev);
8983
8984 if (is_qla40XX(ha))
8985 qla4xxx_prevent_other_port_reinit(ha);
8986
8987 /* destroy iface from sysfs */
8988 qla4xxx_destroy_ifaces(ha);
8989
8990 if ((!ql4xdisablesysfsboot) && ha->boot_kset)
8991 iscsi_boot_destroy_kset(ha->boot_kset);
8992
8993 qla4xxx_destroy_fw_ddb_session(ha);
8994 qla4_8xxx_free_sysfs_attr(ha);
8995
8996 qla4xxx_sysfs_ddb_remove(ha);
8997 scsi_remove_host(ha->host);
8998
8999 qla4xxx_free_adapter(ha);
9000
9001 scsi_host_put(ha->host);
9002
9003 pci_disable_pcie_error_reporting(pdev);
9004 pci_disable_device(pdev);
9005 }
9006
9007 /**
9008 * qla4xxx_config_dma_addressing() - Configure OS DMA addressing method.
9009 * @ha: HA context
9010 *
9011 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
9012 * supported addressing method.
9013 */
9014 static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha)
9015 {
9016 int retval;
9017
9018 /* Update our PCI device dma_mask for full 64 bit mask */
9019 if (pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(64)) == 0) {
9020 if (pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) {
9021 dev_dbg(&ha->pdev->dev,
9022 "Failed to set 64 bit PCI consistent mask; "
9023 "using 32 bit.\n");
9024 retval = pci_set_consistent_dma_mask(ha->pdev,
9025 DMA_BIT_MASK(32));
9026 }
9027 } else
9028 retval = pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(32));
9029 }
9030
9031 static int qla4xxx_slave_alloc(struct scsi_device *sdev)
9032 {
9033 struct iscsi_cls_session *cls_sess;
9034 struct iscsi_session *sess;
9035 struct ddb_entry *ddb;
9036 int queue_depth = QL4_DEF_QDEPTH;
9037
9038 cls_sess = starget_to_session(sdev->sdev_target);
9039 sess = cls_sess->dd_data;
9040 ddb = sess->dd_data;
9041
9042 sdev->hostdata = ddb;
9043
9044 if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU)
9045 queue_depth = ql4xmaxqdepth;
9046
9047 scsi_change_queue_depth(sdev, queue_depth);
9048 return 0;
9049 }
9050
9051 /**
9052 * qla4xxx_del_from_active_array - returns an active srb
9053 * @ha: Pointer to host adapter structure.
9054 * @index: index into the active_array
9055 *
9056 * This routine removes and returns the srb at the specified index
9057 **/
9058 struct srb *qla4xxx_del_from_active_array(struct scsi_qla_host *ha,
9059 uint32_t index)
9060 {
9061 struct srb *srb = NULL;
9062 struct scsi_cmnd *cmd = NULL;
9063
9064 cmd = scsi_host_find_tag(ha->host, index);
9065 if (!cmd)
9066 return srb;
9067
9068 srb = (struct srb *)CMD_SP(cmd);
9069 if (!srb)
9070 return srb;
9071
9072 /* update counters */
9073 if (srb->flags & SRB_DMA_VALID) {
9074 ha->iocb_cnt -= srb->iocb_cnt;
9075 if (srb->cmd)
9076 srb->cmd->host_scribble =
9077 (unsigned char *)(unsigned long) MAX_SRBS;
9078 }
9079 return srb;
9080 }
9081
9082 /**
9083 * qla4xxx_eh_wait_on_command - waits for command to be returned by firmware
9084 * @ha: Pointer to host adapter structure.
9085 * @cmd: Scsi Command to wait on.
9086 *
9087 * This routine waits for the command to be returned by the Firmware
9088 * for some max time.
9089 **/
9090 static int qla4xxx_eh_wait_on_command(struct scsi_qla_host *ha,
9091 struct scsi_cmnd *cmd)
9092 {
9093 int done = 0;
9094 struct srb *rp;
9095 uint32_t max_wait_time = EH_WAIT_CMD_TOV;
9096 int ret = SUCCESS;
9097
9098 /* Dont wait on command if PCI error is being handled
9099 * by PCI AER driver
9100 */
9101 if (unlikely(pci_channel_offline(ha->pdev)) ||
9102 (test_bit(AF_EEH_BUSY, &ha->flags))) {
9103 ql4_printk(KERN_WARNING, ha, "scsi%ld: Return from %s\n",
9104 ha->host_no, __func__);
9105 return ret;
9106 }
9107
9108 do {
9109 /* Checking to see if its returned to OS */
9110 rp = (struct srb *) CMD_SP(cmd);
9111 if (rp == NULL) {
9112 done++;
9113 break;
9114 }
9115
9116 msleep(2000);
9117 } while (max_wait_time--);
9118
9119 return done;
9120 }
9121
9122 /**
9123 * qla4xxx_wait_for_hba_online - waits for HBA to come online
9124 * @ha: Pointer to host adapter structure
9125 **/
9126 static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha)
9127 {
9128 unsigned long wait_online;
9129
9130 wait_online = jiffies + (HBA_ONLINE_TOV * HZ);
9131 while (time_before(jiffies, wait_online)) {
9132
9133 if (adapter_up(ha))
9134 return QLA_SUCCESS;
9135
9136 msleep(2000);
9137 }
9138
9139 return QLA_ERROR;
9140 }
9141
9142 /**
9143 * qla4xxx_eh_wait_for_commands - wait for active cmds to finish.
9144 * @ha: pointer to HBA
9145 * @t: target id
9146 * @l: lun id
9147 *
9148 * This function waits for all outstanding commands to a lun to complete. It
9149 * returns 0 if all pending commands are returned and 1 otherwise.
9150 **/
9151 static int qla4xxx_eh_wait_for_commands(struct scsi_qla_host *ha,
9152 struct scsi_target *stgt,
9153 struct scsi_device *sdev)
9154 {
9155 int cnt;
9156 int status = 0;
9157 struct scsi_cmnd *cmd;
9158
9159 /*
9160 * Waiting for all commands for the designated target or dev
9161 * in the active array
9162 */
9163 for (cnt = 0; cnt < ha->host->can_queue; cnt++) {
9164 cmd = scsi_host_find_tag(ha->host, cnt);
9165 if (cmd && stgt == scsi_target(cmd->device) &&
9166 (!sdev || sdev == cmd->device)) {
9167 if (!qla4xxx_eh_wait_on_command(ha, cmd)) {
9168 status++;
9169 break;
9170 }
9171 }
9172 }
9173 return status;
9174 }
9175
9176 /**
9177 * qla4xxx_eh_abort - callback for abort task.
9178 * @cmd: Pointer to Linux's SCSI command structure
9179 *
9180 * This routine is called by the Linux OS to abort the specified
9181 * command.
9182 **/
9183 static int qla4xxx_eh_abort(struct scsi_cmnd *cmd)
9184 {
9185 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
9186 unsigned int id = cmd->device->id;
9187 uint64_t lun = cmd->device->lun;
9188 unsigned long flags;
9189 struct srb *srb = NULL;
9190 int ret = SUCCESS;
9191 int wait = 0;
9192
9193 ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%llu: Abort command issued cmd=%p, cdb=0x%x\n",
9194 ha->host_no, id, lun, cmd, cmd->cmnd[0]);
9195
9196 spin_lock_irqsave(&ha->hardware_lock, flags);
9197 srb = (struct srb *) CMD_SP(cmd);
9198 if (!srb) {
9199 spin_unlock_irqrestore(&ha->hardware_lock, flags);
9200 ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%llu: Specified command has already completed.\n",
9201 ha->host_no, id, lun);
9202 return SUCCESS;
9203 }
9204 kref_get(&srb->srb_ref);
9205 spin_unlock_irqrestore(&ha->hardware_lock, flags);
9206
9207 if (qla4xxx_abort_task(ha, srb) != QLA_SUCCESS) {
9208 DEBUG3(printk("scsi%ld:%d:%llu: Abort_task mbx failed.\n",
9209 ha->host_no, id, lun));
9210 ret = FAILED;
9211 } else {
9212 DEBUG3(printk("scsi%ld:%d:%llu: Abort_task mbx success.\n",
9213 ha->host_no, id, lun));
9214 wait = 1;
9215 }
9216
9217 kref_put(&srb->srb_ref, qla4xxx_srb_compl);
9218
9219 /* Wait for command to complete */
9220 if (wait) {
9221 if (!qla4xxx_eh_wait_on_command(ha, cmd)) {
9222 DEBUG2(printk("scsi%ld:%d:%llu: Abort handler timed out\n",
9223 ha->host_no, id, lun));
9224 ret = FAILED;
9225 }
9226 }
9227
9228 ql4_printk(KERN_INFO, ha,
9229 "scsi%ld:%d:%llu: Abort command - %s\n",
9230 ha->host_no, id, lun, (ret == SUCCESS) ? "succeeded" : "failed");
9231
9232 return ret;
9233 }
9234
9235 /**
9236 * qla4xxx_eh_device_reset - callback for target reset.
9237 * @cmd: Pointer to Linux's SCSI command structure
9238 *
9239 * This routine is called by the Linux OS to reset all luns on the
9240 * specified target.
9241 **/
9242 static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd)
9243 {
9244 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
9245 struct ddb_entry *ddb_entry = cmd->device->hostdata;
9246 int ret = FAILED, stat;
9247
9248 if (!ddb_entry)
9249 return ret;
9250
9251 ret = iscsi_block_scsi_eh(cmd);
9252 if (ret)
9253 return ret;
9254 ret = FAILED;
9255
9256 ql4_printk(KERN_INFO, ha,
9257 "scsi%ld:%d:%d:%llu: DEVICE RESET ISSUED.\n", ha->host_no,
9258 cmd->device->channel, cmd->device->id, cmd->device->lun);
9259
9260 DEBUG2(printk(KERN_INFO
9261 "scsi%ld: DEVICE_RESET cmd=%p jiffies = 0x%lx, to=%x,"
9262 "dpc_flags=%lx, status=%x allowed=%d\n", ha->host_no,
9263 cmd, jiffies, cmd->request->timeout / HZ,
9264 ha->dpc_flags, cmd->result, cmd->allowed));
9265
9266 /* FIXME: wait for hba to go online */
9267 stat = qla4xxx_reset_lun(ha, ddb_entry, cmd->device->lun);
9268 if (stat != QLA_SUCCESS) {
9269 ql4_printk(KERN_INFO, ha, "DEVICE RESET FAILED. %d\n", stat);
9270 goto eh_dev_reset_done;
9271 }
9272
9273 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device),
9274 cmd->device)) {
9275 ql4_printk(KERN_INFO, ha,
9276 "DEVICE RESET FAILED - waiting for "
9277 "commands.\n");
9278 goto eh_dev_reset_done;
9279 }
9280
9281 /* Send marker. */
9282 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun,
9283 MM_LUN_RESET) != QLA_SUCCESS)
9284 goto eh_dev_reset_done;
9285
9286 ql4_printk(KERN_INFO, ha,
9287 "scsi(%ld:%d:%d:%llu): DEVICE RESET SUCCEEDED.\n",
9288 ha->host_no, cmd->device->channel, cmd->device->id,
9289 cmd->device->lun);
9290
9291 ret = SUCCESS;
9292
9293 eh_dev_reset_done:
9294
9295 return ret;
9296 }
9297
9298 /**
9299 * qla4xxx_eh_target_reset - callback for target reset.
9300 * @cmd: Pointer to Linux's SCSI command structure
9301 *
9302 * This routine is called by the Linux OS to reset the target.
9303 **/
9304 static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd)
9305 {
9306 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
9307 struct ddb_entry *ddb_entry = cmd->device->hostdata;
9308 int stat, ret;
9309
9310 if (!ddb_entry)
9311 return FAILED;
9312
9313 ret = iscsi_block_scsi_eh(cmd);
9314 if (ret)
9315 return ret;
9316
9317 starget_printk(KERN_INFO, scsi_target(cmd->device),
9318 "WARM TARGET RESET ISSUED.\n");
9319
9320 DEBUG2(printk(KERN_INFO
9321 "scsi%ld: TARGET_DEVICE_RESET cmd=%p jiffies = 0x%lx, "
9322 "to=%x,dpc_flags=%lx, status=%x allowed=%d\n",
9323 ha->host_no, cmd, jiffies, cmd->request->timeout / HZ,
9324 ha->dpc_flags, cmd->result, cmd->allowed));
9325
9326 stat = qla4xxx_reset_target(ha, ddb_entry);
9327 if (stat != QLA_SUCCESS) {
9328 starget_printk(KERN_INFO, scsi_target(cmd->device),
9329 "WARM TARGET RESET FAILED.\n");
9330 return FAILED;
9331 }
9332
9333 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device),
9334 NULL)) {
9335 starget_printk(KERN_INFO, scsi_target(cmd->device),
9336 "WARM TARGET DEVICE RESET FAILED - "
9337 "waiting for commands.\n");
9338 return FAILED;
9339 }
9340
9341 /* Send marker. */
9342 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun,
9343 MM_TGT_WARM_RESET) != QLA_SUCCESS) {
9344 starget_printk(KERN_INFO, scsi_target(cmd->device),
9345 "WARM TARGET DEVICE RESET FAILED - "
9346 "marker iocb failed.\n");
9347 return FAILED;
9348 }
9349
9350 starget_printk(KERN_INFO, scsi_target(cmd->device),
9351 "WARM TARGET RESET SUCCEEDED.\n");
9352 return SUCCESS;
9353 }
9354
9355 /**
9356 * qla4xxx_is_eh_active - check if error handler is running
9357 * @shost: Pointer to SCSI Host struct
9358 *
9359 * This routine finds that if reset host is called in EH
9360 * scenario or from some application like sg_reset
9361 **/
9362 static int qla4xxx_is_eh_active(struct Scsi_Host *shost)
9363 {
9364 if (shost->shost_state == SHOST_RECOVERY)
9365 return 1;
9366 return 0;
9367 }
9368
9369 /**
9370 * qla4xxx_eh_host_reset - kernel callback
9371 * @cmd: Pointer to Linux's SCSI command structure
9372 *
9373 * This routine is invoked by the Linux kernel to perform fatal error
9374 * recovery on the specified adapter.
9375 **/
9376 static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd)
9377 {
9378 int return_status = FAILED;
9379 struct scsi_qla_host *ha;
9380
9381 ha = to_qla_host(cmd->device->host);
9382
9383 if ((is_qla8032(ha) || is_qla8042(ha)) && ql4xdontresethba)
9384 qla4_83xx_set_idc_dontreset(ha);
9385
9386 /*
9387 * For ISP8324 and ISP8042, if IDC_CTRL DONTRESET_BIT0 is set by other
9388 * protocol drivers, we should not set device_state to NEED_RESET
9389 */
9390 if (ql4xdontresethba ||
9391 ((is_qla8032(ha) || is_qla8042(ha)) &&
9392 qla4_83xx_idc_dontreset(ha))) {
9393 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n",
9394 ha->host_no, __func__));
9395
9396 /* Clear outstanding srb in queues */
9397 if (qla4xxx_is_eh_active(cmd->device->host))
9398 qla4xxx_abort_active_cmds(ha, DID_ABORT << 16);
9399
9400 return FAILED;
9401 }
9402
9403 ql4_printk(KERN_INFO, ha,
9404 "scsi(%ld:%d:%d:%llu): HOST RESET ISSUED.\n", ha->host_no,
9405 cmd->device->channel, cmd->device->id, cmd->device->lun);
9406
9407 if (qla4xxx_wait_for_hba_online(ha) != QLA_SUCCESS) {
9408 DEBUG2(printk("scsi%ld:%d: %s: Unable to reset host. Adapter "
9409 "DEAD.\n", ha->host_no, cmd->device->channel,
9410 __func__));
9411
9412 return FAILED;
9413 }
9414
9415 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
9416 if (is_qla80XX(ha))
9417 set_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
9418 else
9419 set_bit(DPC_RESET_HA, &ha->dpc_flags);
9420 }
9421
9422 if (qla4xxx_recover_adapter(ha) == QLA_SUCCESS)
9423 return_status = SUCCESS;
9424
9425 ql4_printk(KERN_INFO, ha, "HOST RESET %s.\n",
9426 return_status == FAILED ? "FAILED" : "SUCCEEDED");
9427
9428 return return_status;
9429 }
9430
9431 static int qla4xxx_context_reset(struct scsi_qla_host *ha)
9432 {
9433 uint32_t mbox_cmd[MBOX_REG_COUNT];
9434 uint32_t mbox_sts[MBOX_REG_COUNT];
9435 struct addr_ctrl_blk_def *acb = NULL;
9436 uint32_t acb_len = sizeof(struct addr_ctrl_blk_def);
9437 int rval = QLA_SUCCESS;
9438 dma_addr_t acb_dma;
9439
9440 acb = dma_alloc_coherent(&ha->pdev->dev,
9441 sizeof(struct addr_ctrl_blk_def),
9442 &acb_dma, GFP_KERNEL);
9443 if (!acb) {
9444 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc acb\n",
9445 __func__);
9446 rval = -ENOMEM;
9447 goto exit_port_reset;
9448 }
9449
9450 memset(acb, 0, acb_len);
9451
9452 rval = qla4xxx_get_acb(ha, acb_dma, PRIMARI_ACB, acb_len);
9453 if (rval != QLA_SUCCESS) {
9454 rval = -EIO;
9455 goto exit_free_acb;
9456 }
9457
9458 rval = qla4xxx_disable_acb(ha);
9459 if (rval != QLA_SUCCESS) {
9460 rval = -EIO;
9461 goto exit_free_acb;
9462 }
9463
9464 wait_for_completion_timeout(&ha->disable_acb_comp,
9465 DISABLE_ACB_TOV * HZ);
9466
9467 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], acb_dma);
9468 if (rval != QLA_SUCCESS) {
9469 rval = -EIO;
9470 goto exit_free_acb;
9471 }
9472
9473 exit_free_acb:
9474 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk_def),
9475 acb, acb_dma);
9476 exit_port_reset:
9477 DEBUG2(ql4_printk(KERN_INFO, ha, "%s %s\n", __func__,
9478 rval == QLA_SUCCESS ? "SUCCEEDED" : "FAILED"));
9479 return rval;
9480 }
9481
9482 static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type)
9483 {
9484 struct scsi_qla_host *ha = to_qla_host(shost);
9485 int rval = QLA_SUCCESS;
9486 uint32_t idc_ctrl;
9487
9488 if (ql4xdontresethba) {
9489 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Don't Reset HBA\n",
9490 __func__));
9491 rval = -EPERM;
9492 goto exit_host_reset;
9493 }
9494
9495 if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
9496 goto recover_adapter;
9497
9498 switch (reset_type) {
9499 case SCSI_ADAPTER_RESET:
9500 set_bit(DPC_RESET_HA, &ha->dpc_flags);
9501 break;
9502 case SCSI_FIRMWARE_RESET:
9503 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
9504 if (is_qla80XX(ha))
9505 /* set firmware context reset */
9506 set_bit(DPC_RESET_HA_FW_CONTEXT,
9507 &ha->dpc_flags);
9508 else {
9509 rval = qla4xxx_context_reset(ha);
9510 goto exit_host_reset;
9511 }
9512 }
9513 break;
9514 }
9515
9516 recover_adapter:
9517 /* For ISP8324 and ISP8042 set graceful reset bit in IDC_DRV_CTRL if
9518 * reset is issued by application */
9519 if ((is_qla8032(ha) || is_qla8042(ha)) &&
9520 test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
9521 idc_ctrl = qla4_83xx_rd_reg(ha, QLA83XX_IDC_DRV_CTRL);
9522 qla4_83xx_wr_reg(ha, QLA83XX_IDC_DRV_CTRL,
9523 (idc_ctrl | GRACEFUL_RESET_BIT1));
9524 }
9525
9526 rval = qla4xxx_recover_adapter(ha);
9527 if (rval != QLA_SUCCESS) {
9528 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: recover adapter fail\n",
9529 __func__));
9530 rval = -EIO;
9531 }
9532
9533 exit_host_reset:
9534 return rval;
9535 }
9536
9537 /* PCI AER driver recovers from all correctable errors w/o
9538 * driver intervention. For uncorrectable errors PCI AER
9539 * driver calls the following device driver's callbacks
9540 *
9541 * - Fatal Errors - link_reset
9542 * - Non-Fatal Errors - driver's error_detected() which
9543 * returns CAN_RECOVER, NEED_RESET or DISCONNECT.
9544 *
9545 * PCI AER driver calls
9546 * CAN_RECOVER - driver's mmio_enabled(), mmio_enabled()
9547 * returns RECOVERED or NEED_RESET if fw_hung
9548 * NEED_RESET - driver's slot_reset()
9549 * DISCONNECT - device is dead & cannot recover
9550 * RECOVERED - driver's resume()
9551 */
9552 static pci_ers_result_t
9553 qla4xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
9554 {
9555 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9556
9557 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: error detected:state %x\n",
9558 ha->host_no, __func__, state);
9559
9560 if (!is_aer_supported(ha))
9561 return PCI_ERS_RESULT_NONE;
9562
9563 switch (state) {
9564 case pci_channel_io_normal:
9565 clear_bit(AF_EEH_BUSY, &ha->flags);
9566 return PCI_ERS_RESULT_CAN_RECOVER;
9567 case pci_channel_io_frozen:
9568 set_bit(AF_EEH_BUSY, &ha->flags);
9569 qla4xxx_mailbox_premature_completion(ha);
9570 qla4xxx_free_irqs(ha);
9571 pci_disable_device(pdev);
9572 /* Return back all IOs */
9573 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
9574 return PCI_ERS_RESULT_NEED_RESET;
9575 case pci_channel_io_perm_failure:
9576 set_bit(AF_EEH_BUSY, &ha->flags);
9577 set_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags);
9578 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
9579 return PCI_ERS_RESULT_DISCONNECT;
9580 }
9581 return PCI_ERS_RESULT_NEED_RESET;
9582 }
9583
9584 /**
9585 * qla4xxx_pci_mmio_enabled() gets called if
9586 * qla4xxx_pci_error_detected() returns PCI_ERS_RESULT_CAN_RECOVER
9587 * and read/write to the device still works.
9588 **/
9589 static pci_ers_result_t
9590 qla4xxx_pci_mmio_enabled(struct pci_dev *pdev)
9591 {
9592 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9593
9594 if (!is_aer_supported(ha))
9595 return PCI_ERS_RESULT_NONE;
9596
9597 return PCI_ERS_RESULT_RECOVERED;
9598 }
9599
9600 static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha)
9601 {
9602 uint32_t rval = QLA_ERROR;
9603 int fn;
9604 struct pci_dev *other_pdev = NULL;
9605
9606 ql4_printk(KERN_WARNING, ha, "scsi%ld: In %s\n", ha->host_no, __func__);
9607
9608 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
9609
9610 if (test_bit(AF_ONLINE, &ha->flags)) {
9611 clear_bit(AF_ONLINE, &ha->flags);
9612 clear_bit(AF_LINK_UP, &ha->flags);
9613 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session);
9614 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
9615 }
9616
9617 fn = PCI_FUNC(ha->pdev->devfn);
9618 if (is_qla8022(ha)) {
9619 while (fn > 0) {
9620 fn--;
9621 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Finding PCI device at func %x\n",
9622 ha->host_no, __func__, fn);
9623 /* Get the pci device given the domain, bus,
9624 * slot/function number */
9625 other_pdev = pci_get_domain_bus_and_slot(
9626 pci_domain_nr(ha->pdev->bus),
9627 ha->pdev->bus->number,
9628 PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
9629 fn));
9630
9631 if (!other_pdev)
9632 continue;
9633
9634 if (atomic_read(&other_pdev->enable_cnt)) {
9635 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Found PCI func in enabled state%x\n",
9636 ha->host_no, __func__, fn);
9637 pci_dev_put(other_pdev);
9638 break;
9639 }
9640 pci_dev_put(other_pdev);
9641 }
9642 } else {
9643 /* this case is meant for ISP83xx/ISP84xx only */
9644 if (qla4_83xx_can_perform_reset(ha)) {
9645 /* reset fn as iSCSI is going to perform the reset */
9646 fn = 0;
9647 }
9648 }
9649
9650 /* The first function on the card, the reset owner will
9651 * start & initialize the firmware. The other functions
9652 * on the card will reset the firmware context
9653 */
9654 if (!fn) {
9655 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn being reset "
9656 "0x%x is the owner\n", ha->host_no, __func__,
9657 ha->pdev->devfn);
9658
9659 ha->isp_ops->idc_lock(ha);
9660 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9661 QLA8XXX_DEV_COLD);
9662 ha->isp_ops->idc_unlock(ha);
9663
9664 rval = qla4_8xxx_update_idc_reg(ha);
9665 if (rval == QLA_ERROR) {
9666 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: FAILED\n",
9667 ha->host_no, __func__);
9668 ha->isp_ops->idc_lock(ha);
9669 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9670 QLA8XXX_DEV_FAILED);
9671 ha->isp_ops->idc_unlock(ha);
9672 goto exit_error_recovery;
9673 }
9674
9675 clear_bit(AF_FW_RECOVERY, &ha->flags);
9676 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
9677
9678 if (rval != QLA_SUCCESS) {
9679 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: "
9680 "FAILED\n", ha->host_no, __func__);
9681 qla4xxx_free_irqs(ha);
9682 ha->isp_ops->idc_lock(ha);
9683 qla4_8xxx_clear_drv_active(ha);
9684 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9685 QLA8XXX_DEV_FAILED);
9686 ha->isp_ops->idc_unlock(ha);
9687 } else {
9688 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: "
9689 "READY\n", ha->host_no, __func__);
9690 ha->isp_ops->idc_lock(ha);
9691 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9692 QLA8XXX_DEV_READY);
9693 /* Clear driver state register */
9694 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_STATE, 0);
9695 qla4_8xxx_set_drv_active(ha);
9696 ha->isp_ops->idc_unlock(ha);
9697 ha->isp_ops->enable_intrs(ha);
9698 }
9699 } else {
9700 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn 0x%x is not "
9701 "the reset owner\n", ha->host_no, __func__,
9702 ha->pdev->devfn);
9703 if ((qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE) ==
9704 QLA8XXX_DEV_READY)) {
9705 clear_bit(AF_FW_RECOVERY, &ha->flags);
9706 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
9707 if (rval == QLA_SUCCESS)
9708 ha->isp_ops->enable_intrs(ha);
9709 else
9710 qla4xxx_free_irqs(ha);
9711
9712 ha->isp_ops->idc_lock(ha);
9713 qla4_8xxx_set_drv_active(ha);
9714 ha->isp_ops->idc_unlock(ha);
9715 }
9716 }
9717 exit_error_recovery:
9718 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
9719 return rval;
9720 }
9721
9722 static pci_ers_result_t
9723 qla4xxx_pci_slot_reset(struct pci_dev *pdev)
9724 {
9725 pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
9726 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9727 int rc;
9728
9729 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: slot_reset\n",
9730 ha->host_no, __func__);
9731
9732 if (!is_aer_supported(ha))
9733 return PCI_ERS_RESULT_NONE;
9734
9735 /* Restore the saved state of PCIe device -
9736 * BAR registers, PCI Config space, PCIX, MSI,
9737 * IOV states
9738 */
9739 pci_restore_state(pdev);
9740
9741 /* pci_restore_state() clears the saved_state flag of the device
9742 * save restored state which resets saved_state flag
9743 */
9744 pci_save_state(pdev);
9745
9746 /* Initialize device or resume if in suspended state */
9747 rc = pci_enable_device(pdev);
9748 if (rc) {
9749 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Can't re-enable "
9750 "device after reset\n", ha->host_no, __func__);
9751 goto exit_slot_reset;
9752 }
9753
9754 ha->isp_ops->disable_intrs(ha);
9755
9756 if (is_qla80XX(ha)) {
9757 if (qla4_8xxx_error_recovery(ha) == QLA_SUCCESS) {
9758 ret = PCI_ERS_RESULT_RECOVERED;
9759 goto exit_slot_reset;
9760 } else
9761 goto exit_slot_reset;
9762 }
9763
9764 exit_slot_reset:
9765 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Return=%x\n"
9766 "device after reset\n", ha->host_no, __func__, ret);
9767 return ret;
9768 }
9769
9770 static void
9771 qla4xxx_pci_resume(struct pci_dev *pdev)
9772 {
9773 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9774 int ret;
9775
9776 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: pci_resume\n",
9777 ha->host_no, __func__);
9778
9779 ret = qla4xxx_wait_for_hba_online(ha);
9780 if (ret != QLA_SUCCESS) {
9781 ql4_printk(KERN_ERR, ha, "scsi%ld: %s: the device failed to "
9782 "resume I/O from slot/link_reset\n", ha->host_no,
9783 __func__);
9784 }
9785
9786 pci_cleanup_aer_uncorrect_error_status(pdev);
9787 clear_bit(AF_EEH_BUSY, &ha->flags);
9788 }
9789
9790 static const struct pci_error_handlers qla4xxx_err_handler = {
9791 .error_detected = qla4xxx_pci_error_detected,
9792 .mmio_enabled = qla4xxx_pci_mmio_enabled,
9793 .slot_reset = qla4xxx_pci_slot_reset,
9794 .resume = qla4xxx_pci_resume,
9795 };
9796
9797 static struct pci_device_id qla4xxx_pci_tbl[] = {
9798 {
9799 .vendor = PCI_VENDOR_ID_QLOGIC,
9800 .device = PCI_DEVICE_ID_QLOGIC_ISP4010,
9801 .subvendor = PCI_ANY_ID,
9802 .subdevice = PCI_ANY_ID,
9803 },
9804 {
9805 .vendor = PCI_VENDOR_ID_QLOGIC,
9806 .device = PCI_DEVICE_ID_QLOGIC_ISP4022,
9807 .subvendor = PCI_ANY_ID,
9808 .subdevice = PCI_ANY_ID,
9809 },
9810 {
9811 .vendor = PCI_VENDOR_ID_QLOGIC,
9812 .device = PCI_DEVICE_ID_QLOGIC_ISP4032,
9813 .subvendor = PCI_ANY_ID,
9814 .subdevice = PCI_ANY_ID,
9815 },
9816 {
9817 .vendor = PCI_VENDOR_ID_QLOGIC,
9818 .device = PCI_DEVICE_ID_QLOGIC_ISP8022,
9819 .subvendor = PCI_ANY_ID,
9820 .subdevice = PCI_ANY_ID,
9821 },
9822 {
9823 .vendor = PCI_VENDOR_ID_QLOGIC,
9824 .device = PCI_DEVICE_ID_QLOGIC_ISP8324,
9825 .subvendor = PCI_ANY_ID,
9826 .subdevice = PCI_ANY_ID,
9827 },
9828 {
9829 .vendor = PCI_VENDOR_ID_QLOGIC,
9830 .device = PCI_DEVICE_ID_QLOGIC_ISP8042,
9831 .subvendor = PCI_ANY_ID,
9832 .subdevice = PCI_ANY_ID,
9833 },
9834 {0, 0},
9835 };
9836 MODULE_DEVICE_TABLE(pci, qla4xxx_pci_tbl);
9837
9838 static struct pci_driver qla4xxx_pci_driver = {
9839 .name = DRIVER_NAME,
9840 .id_table = qla4xxx_pci_tbl,
9841 .probe = qla4xxx_probe_adapter,
9842 .remove = qla4xxx_remove_adapter,
9843 .err_handler = &qla4xxx_err_handler,
9844 };
9845
9846 static int __init qla4xxx_module_init(void)
9847 {
9848 int ret;
9849
9850 if (ql4xqfulltracking)
9851 qla4xxx_driver_template.track_queue_depth = 1;
9852
9853 /* Allocate cache for SRBs. */
9854 srb_cachep = kmem_cache_create("qla4xxx_srbs", sizeof(struct srb), 0,
9855 SLAB_HWCACHE_ALIGN, NULL);
9856 if (srb_cachep == NULL) {
9857 printk(KERN_ERR
9858 "%s: Unable to allocate SRB cache..."
9859 "Failing load!\n", DRIVER_NAME);
9860 ret = -ENOMEM;
9861 goto no_srp_cache;
9862 }
9863
9864 /* Derive version string. */
9865 strcpy(qla4xxx_version_str, QLA4XXX_DRIVER_VERSION);
9866 if (ql4xextended_error_logging)
9867 strcat(qla4xxx_version_str, "-debug");
9868
9869 qla4xxx_scsi_transport =
9870 iscsi_register_transport(&qla4xxx_iscsi_transport);
9871 if (!qla4xxx_scsi_transport){
9872 ret = -ENODEV;
9873 goto release_srb_cache;
9874 }
9875
9876 ret = pci_register_driver(&qla4xxx_pci_driver);
9877 if (ret)
9878 goto unregister_transport;
9879
9880 printk(KERN_INFO "QLogic iSCSI HBA Driver\n");
9881 return 0;
9882
9883 unregister_transport:
9884 iscsi_unregister_transport(&qla4xxx_iscsi_transport);
9885 release_srb_cache:
9886 kmem_cache_destroy(srb_cachep);
9887 no_srp_cache:
9888 return ret;
9889 }
9890
9891 static void __exit qla4xxx_module_exit(void)
9892 {
9893 pci_unregister_driver(&qla4xxx_pci_driver);
9894 iscsi_unregister_transport(&qla4xxx_iscsi_transport);
9895 kmem_cache_destroy(srb_cachep);
9896 }
9897
9898 module_init(qla4xxx_module_init);
9899 module_exit(qla4xxx_module_exit);
9900
9901 MODULE_AUTHOR("QLogic Corporation");
9902 MODULE_DESCRIPTION("QLogic iSCSI HBA Driver");
9903 MODULE_LICENSE("GPL");
9904 MODULE_VERSION(QLA4XXX_DRIVER_VERSION);
Linux with added FPC-III support