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fix a kmap leak in virtio_console
[linux/fpc-iii.git] / drivers / scsi / qla4xxx / ql4_os.c
blobc21adc338cf1a93e8c3da62d12febae96c9acd25
1 /*
2 * QLogic iSCSI HBA Driver
3 * Copyright (c) 2003-2013 QLogic Corporation
4 *
5 * See LICENSE.qla4xxx for copyright and licensing details.
6 */
7 #include <linux/moduleparam.h>
8 #include <linux/slab.h>
9 #include <linux/blkdev.h>
10 #include <linux/iscsi_boot_sysfs.h>
11 #include <linux/inet.h>
12
13 #include <scsi/scsi_tcq.h>
14 #include <scsi/scsicam.h>
15
16 #include "ql4_def.h"
17 #include "ql4_version.h"
18 #include "ql4_glbl.h"
19 #include "ql4_dbg.h"
20 #include "ql4_inline.h"
21 #include "ql4_83xx.h"
22
23 /*
24 * Driver version
25 */
26 static char qla4xxx_version_str[40];
27
28 /*
29 * SRB allocation cache
30 */
31 static struct kmem_cache *srb_cachep;
32
33 /*
34 * Module parameter information and variables
35 */
36 static int ql4xdisablesysfsboot = 1;
37 module_param(ql4xdisablesysfsboot, int, S_IRUGO | S_IWUSR);
38 MODULE_PARM_DESC(ql4xdisablesysfsboot,
39 " Set to disable exporting boot targets to sysfs.\n"
40 "\t\t 0 - Export boot targets\n"
41 "\t\t 1 - Do not export boot targets (Default)");
42
43 int ql4xdontresethba;
44 module_param(ql4xdontresethba, int, S_IRUGO | S_IWUSR);
45 MODULE_PARM_DESC(ql4xdontresethba,
46 " Don't reset the HBA for driver recovery.\n"
47 "\t\t 0 - It will reset HBA (Default)\n"
48 "\t\t 1 - It will NOT reset HBA");
49
50 int ql4xextended_error_logging;
51 module_param(ql4xextended_error_logging, int, S_IRUGO | S_IWUSR);
52 MODULE_PARM_DESC(ql4xextended_error_logging,
53 " Option to enable extended error logging.\n"
54 "\t\t 0 - no logging (Default)\n"
55 "\t\t 2 - debug logging");
56
57 int ql4xenablemsix = 1;
58 module_param(ql4xenablemsix, int, S_IRUGO|S_IWUSR);
59 MODULE_PARM_DESC(ql4xenablemsix,
60 " Set to enable MSI or MSI-X interrupt mechanism.\n"
61 "\t\t 0 = enable INTx interrupt mechanism.\n"
62 "\t\t 1 = enable MSI-X interrupt mechanism (Default).\n"
63 "\t\t 2 = enable MSI interrupt mechanism.");
64
65 #define QL4_DEF_QDEPTH 32
66 static int ql4xmaxqdepth = QL4_DEF_QDEPTH;
67 module_param(ql4xmaxqdepth, int, S_IRUGO | S_IWUSR);
68 MODULE_PARM_DESC(ql4xmaxqdepth,
69 " Maximum queue depth to report for target devices.\n"
70 "\t\t Default: 32.");
71
72 static int ql4xqfulltracking = 1;
73 module_param(ql4xqfulltracking, int, S_IRUGO | S_IWUSR);
74 MODULE_PARM_DESC(ql4xqfulltracking,
75 " Enable or disable dynamic tracking and adjustment of\n"
76 "\t\t scsi device queue depth.\n"
77 "\t\t 0 - Disable.\n"
78 "\t\t 1 - Enable. (Default)");
79
80 static int ql4xsess_recovery_tmo = QL4_SESS_RECOVERY_TMO;
81 module_param(ql4xsess_recovery_tmo, int, S_IRUGO);
82 MODULE_PARM_DESC(ql4xsess_recovery_tmo,
83 " Target Session Recovery Timeout.\n"
84 "\t\t Default: 120 sec.");
85
86 int ql4xmdcapmask = 0x1F;
87 module_param(ql4xmdcapmask, int, S_IRUGO);
88 MODULE_PARM_DESC(ql4xmdcapmask,
89 " Set the Minidump driver capture mask level.\n"
90 "\t\t Default is 0x1F.\n"
91 "\t\t Can be set to 0x3, 0x7, 0xF, 0x1F, 0x3F, 0x7F");
92
93 int ql4xenablemd = 1;
94 module_param(ql4xenablemd, int, S_IRUGO | S_IWUSR);
95 MODULE_PARM_DESC(ql4xenablemd,
96 " Set to enable minidump.\n"
97 "\t\t 0 - disable minidump\n"
98 "\t\t 1 - enable minidump (Default)");
99
100 static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha);
101 /*
102 * SCSI host template entry points
103 */
104 static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha);
105
106 /*
107 * iSCSI template entry points
108 */
109 static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess,
110 enum iscsi_param param, char *buf);
111 static int qla4xxx_conn_get_param(struct iscsi_cls_conn *conn,
112 enum iscsi_param param, char *buf);
113 static int qla4xxx_host_get_param(struct Scsi_Host *shost,
114 enum iscsi_host_param param, char *buf);
115 static int qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data,
116 uint32_t len);
117 static int qla4xxx_get_iface_param(struct iscsi_iface *iface,
118 enum iscsi_param_type param_type,
119 int param, char *buf);
120 static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc);
121 static struct iscsi_endpoint *qla4xxx_ep_connect(struct Scsi_Host *shost,
122 struct sockaddr *dst_addr,
123 int non_blocking);
124 static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms);
125 static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep);
126 static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep,
127 enum iscsi_param param, char *buf);
128 static int qla4xxx_conn_start(struct iscsi_cls_conn *conn);
129 static struct iscsi_cls_conn *
130 qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx);
131 static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session,
132 struct iscsi_cls_conn *cls_conn,
133 uint64_t transport_fd, int is_leading);
134 static void qla4xxx_conn_destroy(struct iscsi_cls_conn *conn);
135 static struct iscsi_cls_session *
136 qla4xxx_session_create(struct iscsi_endpoint *ep, uint16_t cmds_max,
137 uint16_t qdepth, uint32_t initial_cmdsn);
138 static void qla4xxx_session_destroy(struct iscsi_cls_session *sess);
139 static void qla4xxx_task_work(struct work_struct *wdata);
140 static int qla4xxx_alloc_pdu(struct iscsi_task *, uint8_t);
141 static int qla4xxx_task_xmit(struct iscsi_task *);
142 static void qla4xxx_task_cleanup(struct iscsi_task *);
143 static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session);
144 static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn,
145 struct iscsi_stats *stats);
146 static int qla4xxx_send_ping(struct Scsi_Host *shost, uint32_t iface_num,
147 uint32_t iface_type, uint32_t payload_size,
148 uint32_t pid, struct sockaddr *dst_addr);
149 static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx,
150 uint32_t *num_entries, char *buf);
151 static int qla4xxx_delete_chap(struct Scsi_Host *shost, uint16_t chap_tbl_idx);
152 static int qla4xxx_set_chap_entry(struct Scsi_Host *shost, void *data,
153 int len);
154 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 int qla4xxx_slave_configure(struct scsi_device *device);
166 static void qla4xxx_slave_destroy(struct scsi_device *sdev);
167 static umode_t qla4_attr_is_visible(int param_type, int param);
168 static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type);
169 static int qla4xxx_change_queue_depth(struct scsi_device *sdev, int qdepth,
170 int reason);
171
172 /*
173 * iSCSI Flash DDB sysfs entry points
174 */
175 static int
176 qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess,
177 struct iscsi_bus_flash_conn *fnode_conn,
178 void *data, int len);
179 static int
180 qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session *fnode_sess,
181 int param, char *buf);
182 static int qla4xxx_sysfs_ddb_add(struct Scsi_Host *shost, const char *buf,
183 int len);
184 static int
185 qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess);
186 static int qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess,
187 struct iscsi_bus_flash_conn *fnode_conn);
188 static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess,
189 struct iscsi_bus_flash_conn *fnode_conn);
190 static int qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess);
191
192 static struct qla4_8xxx_legacy_intr_set legacy_intr[] =
193 QLA82XX_LEGACY_INTR_CONFIG;
194
195 static struct scsi_host_template qla4xxx_driver_template = {
196 .module = THIS_MODULE,
197 .name = DRIVER_NAME,
198 .proc_name = DRIVER_NAME,
199 .queuecommand = qla4xxx_queuecommand,
200
201 .eh_abort_handler = qla4xxx_eh_abort,
202 .eh_device_reset_handler = qla4xxx_eh_device_reset,
203 .eh_target_reset_handler = qla4xxx_eh_target_reset,
204 .eh_host_reset_handler = qla4xxx_eh_host_reset,
205 .eh_timed_out = qla4xxx_eh_cmd_timed_out,
206
207 .slave_configure = qla4xxx_slave_configure,
208 .slave_alloc = qla4xxx_slave_alloc,
209 .slave_destroy = qla4xxx_slave_destroy,
210 .change_queue_depth = qla4xxx_change_queue_depth,
211
212 .this_id = -1,
213 .cmd_per_lun = 3,
214 .use_clustering = ENABLE_CLUSTERING,
215 .sg_tablesize = SG_ALL,
216
217 .max_sectors = 0xFFFF,
218 .shost_attrs = qla4xxx_host_attrs,
219 .host_reset = qla4xxx_host_reset,
220 .vendor_id = SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC,
221 };
222
223 static struct iscsi_transport qla4xxx_iscsi_transport = {
224 .owner = THIS_MODULE,
225 .name = DRIVER_NAME,
226 .caps = CAP_TEXT_NEGO |
227 CAP_DATA_PATH_OFFLOAD | CAP_HDRDGST |
228 CAP_DATADGST | CAP_LOGIN_OFFLOAD |
229 CAP_MULTI_R2T,
230 .attr_is_visible = qla4_attr_is_visible,
231 .create_session = qla4xxx_session_create,
232 .destroy_session = qla4xxx_session_destroy,
233 .start_conn = qla4xxx_conn_start,
234 .create_conn = qla4xxx_conn_create,
235 .bind_conn = qla4xxx_conn_bind,
236 .stop_conn = iscsi_conn_stop,
237 .destroy_conn = qla4xxx_conn_destroy,
238 .set_param = iscsi_set_param,
239 .get_conn_param = qla4xxx_conn_get_param,
240 .get_session_param = qla4xxx_session_get_param,
241 .get_ep_param = qla4xxx_get_ep_param,
242 .ep_connect = qla4xxx_ep_connect,
243 .ep_poll = qla4xxx_ep_poll,
244 .ep_disconnect = qla4xxx_ep_disconnect,
245 .get_stats = qla4xxx_conn_get_stats,
246 .send_pdu = iscsi_conn_send_pdu,
247 .xmit_task = qla4xxx_task_xmit,
248 .cleanup_task = qla4xxx_task_cleanup,
249 .alloc_pdu = qla4xxx_alloc_pdu,
250
251 .get_host_param = qla4xxx_host_get_param,
252 .set_iface_param = qla4xxx_iface_set_param,
253 .get_iface_param = qla4xxx_get_iface_param,
254 .bsg_request = qla4xxx_bsg_request,
255 .send_ping = qla4xxx_send_ping,
256 .get_chap = qla4xxx_get_chap_list,
257 .delete_chap = qla4xxx_delete_chap,
258 .set_chap = qla4xxx_set_chap_entry,
259 .get_flashnode_param = qla4xxx_sysfs_ddb_get_param,
260 .set_flashnode_param = qla4xxx_sysfs_ddb_set_param,
261 .new_flashnode = qla4xxx_sysfs_ddb_add,
262 .del_flashnode = qla4xxx_sysfs_ddb_delete,
263 .login_flashnode = qla4xxx_sysfs_ddb_login,
264 .logout_flashnode = qla4xxx_sysfs_ddb_logout,
265 .logout_flashnode_sid = qla4xxx_sysfs_ddb_logout_sid,
266 .get_host_stats = qla4xxx_get_host_stats,
267 };
268
269 static struct scsi_transport_template *qla4xxx_scsi_transport;
270
271 static int qla4xxx_send_ping(struct Scsi_Host *shost, uint32_t iface_num,
272 uint32_t iface_type, uint32_t payload_size,
273 uint32_t pid, struct sockaddr *dst_addr)
274 {
275 struct scsi_qla_host *ha = to_qla_host(shost);
276 struct sockaddr_in *addr;
277 struct sockaddr_in6 *addr6;
278 uint32_t options = 0;
279 uint8_t ipaddr[IPv6_ADDR_LEN];
280 int rval;
281
282 memset(ipaddr, 0, IPv6_ADDR_LEN);
283 /* IPv4 to IPv4 */
284 if ((iface_type == ISCSI_IFACE_TYPE_IPV4) &&
285 (dst_addr->sa_family == AF_INET)) {
286 addr = (struct sockaddr_in *)dst_addr;
287 memcpy(ipaddr, &addr->sin_addr.s_addr, IP_ADDR_LEN);
288 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv4 Ping src: %pI4 "
289 "dest: %pI4\n", __func__,
290 &ha->ip_config.ip_address, ipaddr));
291 rval = qla4xxx_ping_iocb(ha, options, payload_size, pid,
292 ipaddr);
293 if (rval)
294 rval = -EINVAL;
295 } else if ((iface_type == ISCSI_IFACE_TYPE_IPV6) &&
296 (dst_addr->sa_family == AF_INET6)) {
297 /* IPv6 to IPv6 */
298 addr6 = (struct sockaddr_in6 *)dst_addr;
299 memcpy(ipaddr, &addr6->sin6_addr.in6_u.u6_addr8, IPv6_ADDR_LEN);
300
301 options |= PING_IPV6_PROTOCOL_ENABLE;
302
303 /* Ping using LinkLocal address */
304 if ((iface_num == 0) || (iface_num == 1)) {
305 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: LinkLocal Ping "
306 "src: %pI6 dest: %pI6\n", __func__,
307 &ha->ip_config.ipv6_link_local_addr,
308 ipaddr));
309 options |= PING_IPV6_LINKLOCAL_ADDR;
310 rval = qla4xxx_ping_iocb(ha, options, payload_size,
311 pid, ipaddr);
312 } else {
313 ql4_printk(KERN_WARNING, ha, "%s: iface num = %d "
314 "not supported\n", __func__, iface_num);
315 rval = -ENOSYS;
316 goto exit_send_ping;
317 }
318
319 /*
320 * If ping using LinkLocal address fails, try ping using
321 * IPv6 address
322 */
323 if (rval != QLA_SUCCESS) {
324 options &= ~PING_IPV6_LINKLOCAL_ADDR;
325 if (iface_num == 0) {
326 options |= PING_IPV6_ADDR0;
327 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv6 "
328 "Ping src: %pI6 "
329 "dest: %pI6\n", __func__,
330 &ha->ip_config.ipv6_addr0,
331 ipaddr));
332 } else if (iface_num == 1) {
333 options |= PING_IPV6_ADDR1;
334 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv6 "
335 "Ping src: %pI6 "
336 "dest: %pI6\n", __func__,
337 &ha->ip_config.ipv6_addr1,
338 ipaddr));
339 }
340 rval = qla4xxx_ping_iocb(ha, options, payload_size,
341 pid, ipaddr);
342 if (rval)
343 rval = -EINVAL;
344 }
345 } else
346 rval = -ENOSYS;
347 exit_send_ping:
348 return rval;
349 }
350
351 static umode_t qla4_attr_is_visible(int param_type, int param)
352 {
353 switch (param_type) {
354 case ISCSI_HOST_PARAM:
355 switch (param) {
356 case ISCSI_HOST_PARAM_HWADDRESS:
357 case ISCSI_HOST_PARAM_IPADDRESS:
358 case ISCSI_HOST_PARAM_INITIATOR_NAME:
359 case ISCSI_HOST_PARAM_PORT_STATE:
360 case ISCSI_HOST_PARAM_PORT_SPEED:
361 return S_IRUGO;
362 default:
363 return 0;
364 }
365 case ISCSI_PARAM:
366 switch (param) {
367 case ISCSI_PARAM_PERSISTENT_ADDRESS:
368 case ISCSI_PARAM_PERSISTENT_PORT:
369 case ISCSI_PARAM_CONN_ADDRESS:
370 case ISCSI_PARAM_CONN_PORT:
371 case ISCSI_PARAM_TARGET_NAME:
372 case ISCSI_PARAM_TPGT:
373 case ISCSI_PARAM_TARGET_ALIAS:
374 case ISCSI_PARAM_MAX_BURST:
375 case ISCSI_PARAM_MAX_R2T:
376 case ISCSI_PARAM_FIRST_BURST:
377 case ISCSI_PARAM_MAX_RECV_DLENGTH:
378 case ISCSI_PARAM_MAX_XMIT_DLENGTH:
379 case ISCSI_PARAM_IFACE_NAME:
380 case ISCSI_PARAM_CHAP_OUT_IDX:
381 case ISCSI_PARAM_CHAP_IN_IDX:
382 case ISCSI_PARAM_USERNAME:
383 case ISCSI_PARAM_PASSWORD:
384 case ISCSI_PARAM_USERNAME_IN:
385 case ISCSI_PARAM_PASSWORD_IN:
386 case ISCSI_PARAM_AUTO_SND_TGT_DISABLE:
387 case ISCSI_PARAM_DISCOVERY_SESS:
388 case ISCSI_PARAM_PORTAL_TYPE:
389 case ISCSI_PARAM_CHAP_AUTH_EN:
390 case ISCSI_PARAM_DISCOVERY_LOGOUT_EN:
391 case ISCSI_PARAM_BIDI_CHAP_EN:
392 case ISCSI_PARAM_DISCOVERY_AUTH_OPTIONAL:
393 case ISCSI_PARAM_DEF_TIME2WAIT:
394 case ISCSI_PARAM_DEF_TIME2RETAIN:
395 case ISCSI_PARAM_HDRDGST_EN:
396 case ISCSI_PARAM_DATADGST_EN:
397 case ISCSI_PARAM_INITIAL_R2T_EN:
398 case ISCSI_PARAM_IMM_DATA_EN:
399 case ISCSI_PARAM_PDU_INORDER_EN:
400 case ISCSI_PARAM_DATASEQ_INORDER_EN:
401 case ISCSI_PARAM_MAX_SEGMENT_SIZE:
402 case ISCSI_PARAM_TCP_TIMESTAMP_STAT:
403 case ISCSI_PARAM_TCP_WSF_DISABLE:
404 case ISCSI_PARAM_TCP_NAGLE_DISABLE:
405 case ISCSI_PARAM_TCP_TIMER_SCALE:
406 case ISCSI_PARAM_TCP_TIMESTAMP_EN:
407 case ISCSI_PARAM_TCP_XMIT_WSF:
408 case ISCSI_PARAM_TCP_RECV_WSF:
409 case ISCSI_PARAM_IP_FRAGMENT_DISABLE:
410 case ISCSI_PARAM_IPV4_TOS:
411 case ISCSI_PARAM_IPV6_TC:
412 case ISCSI_PARAM_IPV6_FLOW_LABEL:
413 case ISCSI_PARAM_IS_FW_ASSIGNED_IPV6:
414 case ISCSI_PARAM_KEEPALIVE_TMO:
415 case ISCSI_PARAM_LOCAL_PORT:
416 case ISCSI_PARAM_ISID:
417 case ISCSI_PARAM_TSID:
418 case ISCSI_PARAM_DEF_TASKMGMT_TMO:
419 case ISCSI_PARAM_ERL:
420 case ISCSI_PARAM_STATSN:
421 case ISCSI_PARAM_EXP_STATSN:
422 case ISCSI_PARAM_DISCOVERY_PARENT_IDX:
423 case ISCSI_PARAM_DISCOVERY_PARENT_TYPE:
424 case ISCSI_PARAM_LOCAL_IPADDR:
425 return S_IRUGO;
426 default:
427 return 0;
428 }
429 case ISCSI_NET_PARAM:
430 switch (param) {
431 case ISCSI_NET_PARAM_IPV4_ADDR:
432 case ISCSI_NET_PARAM_IPV4_SUBNET:
433 case ISCSI_NET_PARAM_IPV4_GW:
434 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
435 case ISCSI_NET_PARAM_IFACE_ENABLE:
436 case ISCSI_NET_PARAM_IPV6_LINKLOCAL:
437 case ISCSI_NET_PARAM_IPV6_ADDR:
438 case ISCSI_NET_PARAM_IPV6_ROUTER:
439 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG:
440 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG:
441 case ISCSI_NET_PARAM_VLAN_ID:
442 case ISCSI_NET_PARAM_VLAN_PRIORITY:
443 case ISCSI_NET_PARAM_VLAN_ENABLED:
444 case ISCSI_NET_PARAM_MTU:
445 case ISCSI_NET_PARAM_PORT:
446 case ISCSI_NET_PARAM_IPADDR_STATE:
447 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_STATE:
448 case ISCSI_NET_PARAM_IPV6_ROUTER_STATE:
449 case ISCSI_NET_PARAM_DELAYED_ACK_EN:
450 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE:
451 case ISCSI_NET_PARAM_TCP_WSF_DISABLE:
452 case ISCSI_NET_PARAM_TCP_WSF:
453 case ISCSI_NET_PARAM_TCP_TIMER_SCALE:
454 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN:
455 case ISCSI_NET_PARAM_CACHE_ID:
456 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN:
457 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN:
458 case ISCSI_NET_PARAM_IPV4_TOS_EN:
459 case ISCSI_NET_PARAM_IPV4_TOS:
460 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN:
461 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN:
462 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID:
463 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN:
464 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN:
465 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID:
466 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN:
467 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE:
468 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN:
469 case ISCSI_NET_PARAM_REDIRECT_EN:
470 case ISCSI_NET_PARAM_IPV4_TTL:
471 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN:
472 case ISCSI_NET_PARAM_IPV6_MLD_EN:
473 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL:
474 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS:
475 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT:
476 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO:
477 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME:
478 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO:
479 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT:
480 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU:
481 return S_IRUGO;
482 default:
483 return 0;
484 }
485 case ISCSI_IFACE_PARAM:
486 switch (param) {
487 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO:
488 case ISCSI_IFACE_PARAM_HDRDGST_EN:
489 case ISCSI_IFACE_PARAM_DATADGST_EN:
490 case ISCSI_IFACE_PARAM_IMM_DATA_EN:
491 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN:
492 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN:
493 case ISCSI_IFACE_PARAM_PDU_INORDER_EN:
494 case ISCSI_IFACE_PARAM_ERL:
495 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH:
496 case ISCSI_IFACE_PARAM_FIRST_BURST:
497 case ISCSI_IFACE_PARAM_MAX_R2T:
498 case ISCSI_IFACE_PARAM_MAX_BURST:
499 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN:
500 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN:
501 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL:
502 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN:
503 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN:
504 case ISCSI_IFACE_PARAM_INITIATOR_NAME:
505 return S_IRUGO;
506 default:
507 return 0;
508 }
509 case ISCSI_FLASHNODE_PARAM:
510 switch (param) {
511 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6:
512 case ISCSI_FLASHNODE_PORTAL_TYPE:
513 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE:
514 case ISCSI_FLASHNODE_DISCOVERY_SESS:
515 case ISCSI_FLASHNODE_ENTRY_EN:
516 case ISCSI_FLASHNODE_HDR_DGST_EN:
517 case ISCSI_FLASHNODE_DATA_DGST_EN:
518 case ISCSI_FLASHNODE_IMM_DATA_EN:
519 case ISCSI_FLASHNODE_INITIAL_R2T_EN:
520 case ISCSI_FLASHNODE_DATASEQ_INORDER:
521 case ISCSI_FLASHNODE_PDU_INORDER:
522 case ISCSI_FLASHNODE_CHAP_AUTH_EN:
523 case ISCSI_FLASHNODE_SNACK_REQ_EN:
524 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN:
525 case ISCSI_FLASHNODE_BIDI_CHAP_EN:
526 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL:
527 case ISCSI_FLASHNODE_ERL:
528 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT:
529 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE:
530 case ISCSI_FLASHNODE_TCP_WSF_DISABLE:
531 case ISCSI_FLASHNODE_TCP_TIMER_SCALE:
532 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN:
533 case ISCSI_FLASHNODE_IP_FRAG_DISABLE:
534 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH:
535 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH:
536 case ISCSI_FLASHNODE_FIRST_BURST:
537 case ISCSI_FLASHNODE_DEF_TIME2WAIT:
538 case ISCSI_FLASHNODE_DEF_TIME2RETAIN:
539 case ISCSI_FLASHNODE_MAX_R2T:
540 case ISCSI_FLASHNODE_KEEPALIVE_TMO:
541 case ISCSI_FLASHNODE_ISID:
542 case ISCSI_FLASHNODE_TSID:
543 case ISCSI_FLASHNODE_PORT:
544 case ISCSI_FLASHNODE_MAX_BURST:
545 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO:
546 case ISCSI_FLASHNODE_IPADDR:
547 case ISCSI_FLASHNODE_ALIAS:
548 case ISCSI_FLASHNODE_REDIRECT_IPADDR:
549 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE:
550 case ISCSI_FLASHNODE_LOCAL_PORT:
551 case ISCSI_FLASHNODE_IPV4_TOS:
552 case ISCSI_FLASHNODE_IPV6_TC:
553 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL:
554 case ISCSI_FLASHNODE_NAME:
555 case ISCSI_FLASHNODE_TPGT:
556 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6:
557 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX:
558 case ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE:
559 case ISCSI_FLASHNODE_TCP_XMIT_WSF:
560 case ISCSI_FLASHNODE_TCP_RECV_WSF:
561 case ISCSI_FLASHNODE_CHAP_OUT_IDX:
562 case ISCSI_FLASHNODE_USERNAME:
563 case ISCSI_FLASHNODE_PASSWORD:
564 case ISCSI_FLASHNODE_STATSN:
565 case ISCSI_FLASHNODE_EXP_STATSN:
566 case ISCSI_FLASHNODE_IS_BOOT_TGT:
567 return S_IRUGO;
568 default:
569 return 0;
570 }
571 }
572
573 return 0;
574 }
575
576 /**
577 * qla4xxx_create chap_list - Create CHAP list from FLASH
578 * @ha: pointer to adapter structure
579 *
580 * Read flash and make a list of CHAP entries, during login when a CHAP entry
581 * is received, it will be checked in this list. If entry exist then the CHAP
582 * entry index is set in the DDB. If CHAP entry does not exist in this list
583 * then a new entry is added in FLASH in CHAP table and the index obtained is
584 * used in the DDB.
585 **/
586 static void qla4xxx_create_chap_list(struct scsi_qla_host *ha)
587 {
588 int rval = 0;
589 uint8_t *chap_flash_data = NULL;
590 uint32_t offset;
591 dma_addr_t chap_dma;
592 uint32_t chap_size = 0;
593
594 if (is_qla40XX(ha))
595 chap_size = MAX_CHAP_ENTRIES_40XX *
596 sizeof(struct ql4_chap_table);
597 else /* Single region contains CHAP info for both
598 * ports which is divided into half for each port.
599 */
600 chap_size = ha->hw.flt_chap_size / 2;
601
602 chap_flash_data = dma_alloc_coherent(&ha->pdev->dev, chap_size,
603 &chap_dma, GFP_KERNEL);
604 if (!chap_flash_data) {
605 ql4_printk(KERN_ERR, ha, "No memory for chap_flash_data\n");
606 return;
607 }
608
609 if (is_qla40XX(ha)) {
610 offset = FLASH_CHAP_OFFSET;
611 } else {
612 offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2);
613 if (ha->port_num == 1)
614 offset += chap_size;
615 }
616
617 rval = qla4xxx_get_flash(ha, chap_dma, offset, chap_size);
618 if (rval != QLA_SUCCESS)
619 goto exit_chap_list;
620
621 if (ha->chap_list == NULL)
622 ha->chap_list = vmalloc(chap_size);
623 if (ha->chap_list == NULL) {
624 ql4_printk(KERN_ERR, ha, "No memory for ha->chap_list\n");
625 goto exit_chap_list;
626 }
627
628 memset(ha->chap_list, 0, chap_size);
629 memcpy(ha->chap_list, chap_flash_data, chap_size);
630
631 exit_chap_list:
632 dma_free_coherent(&ha->pdev->dev, chap_size, chap_flash_data, chap_dma);
633 }
634
635 static int qla4xxx_get_chap_by_index(struct scsi_qla_host *ha,
636 int16_t chap_index,
637 struct ql4_chap_table **chap_entry)
638 {
639 int rval = QLA_ERROR;
640 int max_chap_entries;
641
642 if (!ha->chap_list) {
643 ql4_printk(KERN_ERR, ha, "CHAP table cache is empty!\n");
644 rval = QLA_ERROR;
645 goto exit_get_chap;
646 }
647
648 if (is_qla80XX(ha))
649 max_chap_entries = (ha->hw.flt_chap_size / 2) /
650 sizeof(struct ql4_chap_table);
651 else
652 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
653
654 if (chap_index > max_chap_entries) {
655 ql4_printk(KERN_ERR, ha, "Invalid Chap index\n");
656 rval = QLA_ERROR;
657 goto exit_get_chap;
658 }
659
660 *chap_entry = (struct ql4_chap_table *)ha->chap_list + chap_index;
661 if ((*chap_entry)->cookie !=
662 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) {
663 rval = QLA_ERROR;
664 *chap_entry = NULL;
665 } else {
666 rval = QLA_SUCCESS;
667 }
668
669 exit_get_chap:
670 return rval;
671 }
672
673 /**
674 * qla4xxx_find_free_chap_index - Find the first free chap index
675 * @ha: pointer to adapter structure
676 * @chap_index: CHAP index to be returned
677 *
678 * Find the first free chap index available in the chap table
679 *
680 * Note: Caller should acquire the chap lock before getting here.
681 **/
682 static int qla4xxx_find_free_chap_index(struct scsi_qla_host *ha,
683 uint16_t *chap_index)
684 {
685 int i, rval;
686 int free_index = -1;
687 int max_chap_entries = 0;
688 struct ql4_chap_table *chap_table;
689
690 if (is_qla80XX(ha))
691 max_chap_entries = (ha->hw.flt_chap_size / 2) /
692 sizeof(struct ql4_chap_table);
693 else
694 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
695
696 if (!ha->chap_list) {
697 ql4_printk(KERN_ERR, ha, "CHAP table cache is empty!\n");
698 rval = QLA_ERROR;
699 goto exit_find_chap;
700 }
701
702 for (i = 0; i < max_chap_entries; i++) {
703 chap_table = (struct ql4_chap_table *)ha->chap_list + i;
704
705 if ((chap_table->cookie !=
706 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) &&
707 (i > MAX_RESRV_CHAP_IDX)) {
708 free_index = i;
709 break;
710 }
711 }
712
713 if (free_index != -1) {
714 *chap_index = free_index;
715 rval = QLA_SUCCESS;
716 } else {
717 rval = QLA_ERROR;
718 }
719
720 exit_find_chap:
721 return rval;
722 }
723
724 static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx,
725 uint32_t *num_entries, char *buf)
726 {
727 struct scsi_qla_host *ha = to_qla_host(shost);
728 struct ql4_chap_table *chap_table;
729 struct iscsi_chap_rec *chap_rec;
730 int max_chap_entries = 0;
731 int valid_chap_entries = 0;
732 int ret = 0, i;
733
734 if (is_qla80XX(ha))
735 max_chap_entries = (ha->hw.flt_chap_size / 2) /
736 sizeof(struct ql4_chap_table);
737 else
738 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
739
740 ql4_printk(KERN_INFO, ha, "%s: num_entries = %d, CHAP idx = %d\n",
741 __func__, *num_entries, chap_tbl_idx);
742
743 if (!buf) {
744 ret = -ENOMEM;
745 goto exit_get_chap_list;
746 }
747
748 qla4xxx_create_chap_list(ha);
749
750 chap_rec = (struct iscsi_chap_rec *) buf;
751 mutex_lock(&ha->chap_sem);
752 for (i = chap_tbl_idx; i < max_chap_entries; i++) {
753 chap_table = (struct ql4_chap_table *)ha->chap_list + i;
754 if (chap_table->cookie !=
755 __constant_cpu_to_le16(CHAP_VALID_COOKIE))
756 continue;
757
758 chap_rec->chap_tbl_idx = i;
759 strncpy(chap_rec->username, chap_table->name,
760 ISCSI_CHAP_AUTH_NAME_MAX_LEN);
761 strncpy(chap_rec->password, chap_table->secret,
762 QL4_CHAP_MAX_SECRET_LEN);
763 chap_rec->password_length = chap_table->secret_len;
764
765 if (chap_table->flags & BIT_7) /* local */
766 chap_rec->chap_type = CHAP_TYPE_OUT;
767
768 if (chap_table->flags & BIT_6) /* peer */
769 chap_rec->chap_type = CHAP_TYPE_IN;
770
771 chap_rec++;
772
773 valid_chap_entries++;
774 if (valid_chap_entries == *num_entries)
775 break;
776 else
777 continue;
778 }
779 mutex_unlock(&ha->chap_sem);
780
781 exit_get_chap_list:
782 ql4_printk(KERN_INFO, ha, "%s: Valid CHAP Entries = %d\n",
783 __func__, valid_chap_entries);
784 *num_entries = valid_chap_entries;
785 return ret;
786 }
787
788 static int __qla4xxx_is_chap_active(struct device *dev, void *data)
789 {
790 int ret = 0;
791 uint16_t *chap_tbl_idx = (uint16_t *) data;
792 struct iscsi_cls_session *cls_session;
793 struct iscsi_session *sess;
794 struct ddb_entry *ddb_entry;
795
796 if (!iscsi_is_session_dev(dev))
797 goto exit_is_chap_active;
798
799 cls_session = iscsi_dev_to_session(dev);
800 sess = cls_session->dd_data;
801 ddb_entry = sess->dd_data;
802
803 if (iscsi_session_chkready(cls_session))
804 goto exit_is_chap_active;
805
806 if (ddb_entry->chap_tbl_idx == *chap_tbl_idx)
807 ret = 1;
808
809 exit_is_chap_active:
810 return ret;
811 }
812
813 static int qla4xxx_is_chap_active(struct Scsi_Host *shost,
814 uint16_t chap_tbl_idx)
815 {
816 int ret = 0;
817
818 ret = device_for_each_child(&shost->shost_gendev, &chap_tbl_idx,
819 __qla4xxx_is_chap_active);
820
821 return ret;
822 }
823
824 static int qla4xxx_delete_chap(struct Scsi_Host *shost, uint16_t chap_tbl_idx)
825 {
826 struct scsi_qla_host *ha = to_qla_host(shost);
827 struct ql4_chap_table *chap_table;
828 dma_addr_t chap_dma;
829 int max_chap_entries = 0;
830 uint32_t offset = 0;
831 uint32_t chap_size;
832 int ret = 0;
833
834 chap_table = dma_pool_alloc(ha->chap_dma_pool, GFP_KERNEL, &chap_dma);
835 if (chap_table == NULL)
836 return -ENOMEM;
837
838 memset(chap_table, 0, sizeof(struct ql4_chap_table));
839
840 if (is_qla80XX(ha))
841 max_chap_entries = (ha->hw.flt_chap_size / 2) /
842 sizeof(struct ql4_chap_table);
843 else
844 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
845
846 if (chap_tbl_idx > max_chap_entries) {
847 ret = -EINVAL;
848 goto exit_delete_chap;
849 }
850
851 /* Check if chap index is in use.
852 * If chap is in use don't delet chap entry */
853 ret = qla4xxx_is_chap_active(shost, chap_tbl_idx);
854 if (ret) {
855 ql4_printk(KERN_INFO, ha, "CHAP entry %d is in use, cannot "
856 "delete from flash\n", chap_tbl_idx);
857 ret = -EBUSY;
858 goto exit_delete_chap;
859 }
860
861 chap_size = sizeof(struct ql4_chap_table);
862 if (is_qla40XX(ha))
863 offset = FLASH_CHAP_OFFSET | (chap_tbl_idx * chap_size);
864 else {
865 offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2);
866 /* flt_chap_size is CHAP table size for both ports
867 * so divide it by 2 to calculate the offset for second port
868 */
869 if (ha->port_num == 1)
870 offset += (ha->hw.flt_chap_size / 2);
871 offset += (chap_tbl_idx * chap_size);
872 }
873
874 ret = qla4xxx_get_flash(ha, chap_dma, offset, chap_size);
875 if (ret != QLA_SUCCESS) {
876 ret = -EINVAL;
877 goto exit_delete_chap;
878 }
879
880 DEBUG2(ql4_printk(KERN_INFO, ha, "Chap Cookie: x%x\n",
881 __le16_to_cpu(chap_table->cookie)));
882
883 if (__le16_to_cpu(chap_table->cookie) != CHAP_VALID_COOKIE) {
884 ql4_printk(KERN_ERR, ha, "No valid chap entry found\n");
885 goto exit_delete_chap;
886 }
887
888 chap_table->cookie = __constant_cpu_to_le16(0xFFFF);
889
890 offset = FLASH_CHAP_OFFSET |
891 (chap_tbl_idx * sizeof(struct ql4_chap_table));
892 ret = qla4xxx_set_flash(ha, chap_dma, offset, chap_size,
893 FLASH_OPT_RMW_COMMIT);
894 if (ret == QLA_SUCCESS && ha->chap_list) {
895 mutex_lock(&ha->chap_sem);
896 /* Update ha chap_list cache */
897 memcpy((struct ql4_chap_table *)ha->chap_list + chap_tbl_idx,
898 chap_table, sizeof(struct ql4_chap_table));
899 mutex_unlock(&ha->chap_sem);
900 }
901 if (ret != QLA_SUCCESS)
902 ret = -EINVAL;
903
904 exit_delete_chap:
905 dma_pool_free(ha->chap_dma_pool, chap_table, chap_dma);
906 return ret;
907 }
908
909 /**
910 * qla4xxx_set_chap_entry - Make chap entry with given information
911 * @shost: pointer to host
912 * @data: chap info - credentials, index and type to make chap entry
913 * @len: length of data
914 *
915 * Add or update chap entry with the given information
916 **/
917 static int qla4xxx_set_chap_entry(struct Scsi_Host *shost, void *data, int len)
918 {
919 struct scsi_qla_host *ha = to_qla_host(shost);
920 struct iscsi_chap_rec chap_rec;
921 struct ql4_chap_table *chap_entry = NULL;
922 struct iscsi_param_info *param_info;
923 struct nlattr *attr;
924 int max_chap_entries = 0;
925 int type;
926 int rem = len;
927 int rc = 0;
928 int size;
929
930 memset(&chap_rec, 0, sizeof(chap_rec));
931
932 nla_for_each_attr(attr, data, len, rem) {
933 param_info = nla_data(attr);
934
935 switch (param_info->param) {
936 case ISCSI_CHAP_PARAM_INDEX:
937 chap_rec.chap_tbl_idx = *(uint16_t *)param_info->value;
938 break;
939 case ISCSI_CHAP_PARAM_CHAP_TYPE:
940 chap_rec.chap_type = param_info->value[0];
941 break;
942 case ISCSI_CHAP_PARAM_USERNAME:
943 size = min_t(size_t, sizeof(chap_rec.username),
944 param_info->len);
945 memcpy(chap_rec.username, param_info->value, size);
946 break;
947 case ISCSI_CHAP_PARAM_PASSWORD:
948 size = min_t(size_t, sizeof(chap_rec.password),
949 param_info->len);
950 memcpy(chap_rec.password, param_info->value, size);
951 break;
952 case ISCSI_CHAP_PARAM_PASSWORD_LEN:
953 chap_rec.password_length = param_info->value[0];
954 break;
955 default:
956 ql4_printk(KERN_ERR, ha,
957 "%s: No such sysfs attribute\n", __func__);
958 rc = -ENOSYS;
959 goto exit_set_chap;
960 };
961 }
962
963 if (chap_rec.chap_type == CHAP_TYPE_IN)
964 type = BIDI_CHAP;
965 else
966 type = LOCAL_CHAP;
967
968 if (is_qla80XX(ha))
969 max_chap_entries = (ha->hw.flt_chap_size / 2) /
970 sizeof(struct ql4_chap_table);
971 else
972 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
973
974 mutex_lock(&ha->chap_sem);
975 if (chap_rec.chap_tbl_idx < max_chap_entries) {
976 rc = qla4xxx_get_chap_by_index(ha, chap_rec.chap_tbl_idx,
977 &chap_entry);
978 if (!rc) {
979 if (!(type == qla4xxx_get_chap_type(chap_entry))) {
980 ql4_printk(KERN_INFO, ha,
981 "Type mismatch for CHAP entry %d\n",
982 chap_rec.chap_tbl_idx);
983 rc = -EINVAL;
984 goto exit_unlock_chap;
985 }
986
987 /* If chap index is in use then don't modify it */
988 rc = qla4xxx_is_chap_active(shost,
989 chap_rec.chap_tbl_idx);
990 if (rc) {
991 ql4_printk(KERN_INFO, ha,
992 "CHAP entry %d is in use\n",
993 chap_rec.chap_tbl_idx);
994 rc = -EBUSY;
995 goto exit_unlock_chap;
996 }
997 }
998 } else {
999 rc = qla4xxx_find_free_chap_index(ha, &chap_rec.chap_tbl_idx);
1000 if (rc) {
1001 ql4_printk(KERN_INFO, ha, "CHAP entry not available\n");
1002 rc = -EBUSY;
1003 goto exit_unlock_chap;
1004 }
1005 }
1006
1007 rc = qla4xxx_set_chap(ha, chap_rec.username, chap_rec.password,
1008 chap_rec.chap_tbl_idx, type);
1009
1010 exit_unlock_chap:
1011 mutex_unlock(&ha->chap_sem);
1012
1013 exit_set_chap:
1014 return rc;
1015 }
1016
1017
1018 static int qla4xxx_get_host_stats(struct Scsi_Host *shost, char *buf, int len)
1019 {
1020 struct scsi_qla_host *ha = to_qla_host(shost);
1021 struct iscsi_offload_host_stats *host_stats = NULL;
1022 int host_stats_size;
1023 int ret = 0;
1024 int ddb_idx = 0;
1025 struct ql_iscsi_stats *ql_iscsi_stats = NULL;
1026 int stats_size;
1027 dma_addr_t iscsi_stats_dma;
1028
1029 DEBUG2(ql4_printk(KERN_INFO, ha, "Func: %s\n", __func__));
1030
1031 host_stats_size = sizeof(struct iscsi_offload_host_stats);
1032
1033 if (host_stats_size != len) {
1034 ql4_printk(KERN_INFO, ha, "%s: host_stats size mismatch expected = %d, is = %d\n",
1035 __func__, len, host_stats_size);
1036 ret = -EINVAL;
1037 goto exit_host_stats;
1038 }
1039 host_stats = (struct iscsi_offload_host_stats *)buf;
1040
1041 if (!buf) {
1042 ret = -ENOMEM;
1043 goto exit_host_stats;
1044 }
1045
1046 stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats));
1047
1048 ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size,
1049 &iscsi_stats_dma, GFP_KERNEL);
1050 if (!ql_iscsi_stats) {
1051 ql4_printk(KERN_ERR, ha,
1052 "Unable to allocate memory for iscsi stats\n");
1053 goto exit_host_stats;
1054 }
1055
1056 ret = qla4xxx_get_mgmt_data(ha, ddb_idx, stats_size,
1057 iscsi_stats_dma);
1058 if (ret != QLA_SUCCESS) {
1059 ql4_printk(KERN_ERR, ha,
1060 "Unable to retrieve iscsi stats\n");
1061 goto exit_host_stats;
1062 }
1063 host_stats->mactx_frames = le64_to_cpu(ql_iscsi_stats->mac_tx_frames);
1064 host_stats->mactx_bytes = le64_to_cpu(ql_iscsi_stats->mac_tx_bytes);
1065 host_stats->mactx_multicast_frames =
1066 le64_to_cpu(ql_iscsi_stats->mac_tx_multicast_frames);
1067 host_stats->mactx_broadcast_frames =
1068 le64_to_cpu(ql_iscsi_stats->mac_tx_broadcast_frames);
1069 host_stats->mactx_pause_frames =
1070 le64_to_cpu(ql_iscsi_stats->mac_tx_pause_frames);
1071 host_stats->mactx_control_frames =
1072 le64_to_cpu(ql_iscsi_stats->mac_tx_control_frames);
1073 host_stats->mactx_deferral =
1074 le64_to_cpu(ql_iscsi_stats->mac_tx_deferral);
1075 host_stats->mactx_excess_deferral =
1076 le64_to_cpu(ql_iscsi_stats->mac_tx_excess_deferral);
1077 host_stats->mactx_late_collision =
1078 le64_to_cpu(ql_iscsi_stats->mac_tx_late_collision);
1079 host_stats->mactx_abort = le64_to_cpu(ql_iscsi_stats->mac_tx_abort);
1080 host_stats->mactx_single_collision =
1081 le64_to_cpu(ql_iscsi_stats->mac_tx_single_collision);
1082 host_stats->mactx_multiple_collision =
1083 le64_to_cpu(ql_iscsi_stats->mac_tx_multiple_collision);
1084 host_stats->mactx_collision =
1085 le64_to_cpu(ql_iscsi_stats->mac_tx_collision);
1086 host_stats->mactx_frames_dropped =
1087 le64_to_cpu(ql_iscsi_stats->mac_tx_frames_dropped);
1088 host_stats->mactx_jumbo_frames =
1089 le64_to_cpu(ql_iscsi_stats->mac_tx_jumbo_frames);
1090 host_stats->macrx_frames = le64_to_cpu(ql_iscsi_stats->mac_rx_frames);
1091 host_stats->macrx_bytes = le64_to_cpu(ql_iscsi_stats->mac_rx_bytes);
1092 host_stats->macrx_unknown_control_frames =
1093 le64_to_cpu(ql_iscsi_stats->mac_rx_unknown_control_frames);
1094 host_stats->macrx_pause_frames =
1095 le64_to_cpu(ql_iscsi_stats->mac_rx_pause_frames);
1096 host_stats->macrx_control_frames =
1097 le64_to_cpu(ql_iscsi_stats->mac_rx_control_frames);
1098 host_stats->macrx_dribble =
1099 le64_to_cpu(ql_iscsi_stats->mac_rx_dribble);
1100 host_stats->macrx_frame_length_error =
1101 le64_to_cpu(ql_iscsi_stats->mac_rx_frame_length_error);
1102 host_stats->macrx_jabber = le64_to_cpu(ql_iscsi_stats->mac_rx_jabber);
1103 host_stats->macrx_carrier_sense_error =
1104 le64_to_cpu(ql_iscsi_stats->mac_rx_carrier_sense_error);
1105 host_stats->macrx_frame_discarded =
1106 le64_to_cpu(ql_iscsi_stats->mac_rx_frame_discarded);
1107 host_stats->macrx_frames_dropped =
1108 le64_to_cpu(ql_iscsi_stats->mac_rx_frames_dropped);
1109 host_stats->mac_crc_error = le64_to_cpu(ql_iscsi_stats->mac_crc_error);
1110 host_stats->mac_encoding_error =
1111 le64_to_cpu(ql_iscsi_stats->mac_encoding_error);
1112 host_stats->macrx_length_error_large =
1113 le64_to_cpu(ql_iscsi_stats->mac_rx_length_error_large);
1114 host_stats->macrx_length_error_small =
1115 le64_to_cpu(ql_iscsi_stats->mac_rx_length_error_small);
1116 host_stats->macrx_multicast_frames =
1117 le64_to_cpu(ql_iscsi_stats->mac_rx_multicast_frames);
1118 host_stats->macrx_broadcast_frames =
1119 le64_to_cpu(ql_iscsi_stats->mac_rx_broadcast_frames);
1120 host_stats->iptx_packets = le64_to_cpu(ql_iscsi_stats->ip_tx_packets);
1121 host_stats->iptx_bytes = le64_to_cpu(ql_iscsi_stats->ip_tx_bytes);
1122 host_stats->iptx_fragments =
1123 le64_to_cpu(ql_iscsi_stats->ip_tx_fragments);
1124 host_stats->iprx_packets = le64_to_cpu(ql_iscsi_stats->ip_rx_packets);
1125 host_stats->iprx_bytes = le64_to_cpu(ql_iscsi_stats->ip_rx_bytes);
1126 host_stats->iprx_fragments =
1127 le64_to_cpu(ql_iscsi_stats->ip_rx_fragments);
1128 host_stats->ip_datagram_reassembly =
1129 le64_to_cpu(ql_iscsi_stats->ip_datagram_reassembly);
1130 host_stats->ip_invalid_address_error =
1131 le64_to_cpu(ql_iscsi_stats->ip_invalid_address_error);
1132 host_stats->ip_error_packets =
1133 le64_to_cpu(ql_iscsi_stats->ip_error_packets);
1134 host_stats->ip_fragrx_overlap =
1135 le64_to_cpu(ql_iscsi_stats->ip_fragrx_overlap);
1136 host_stats->ip_fragrx_outoforder =
1137 le64_to_cpu(ql_iscsi_stats->ip_fragrx_outoforder);
1138 host_stats->ip_datagram_reassembly_timeout =
1139 le64_to_cpu(ql_iscsi_stats->ip_datagram_reassembly_timeout);
1140 host_stats->ipv6tx_packets =
1141 le64_to_cpu(ql_iscsi_stats->ipv6_tx_packets);
1142 host_stats->ipv6tx_bytes = le64_to_cpu(ql_iscsi_stats->ipv6_tx_bytes);
1143 host_stats->ipv6tx_fragments =
1144 le64_to_cpu(ql_iscsi_stats->ipv6_tx_fragments);
1145 host_stats->ipv6rx_packets =
1146 le64_to_cpu(ql_iscsi_stats->ipv6_rx_packets);
1147 host_stats->ipv6rx_bytes = le64_to_cpu(ql_iscsi_stats->ipv6_rx_bytes);
1148 host_stats->ipv6rx_fragments =
1149 le64_to_cpu(ql_iscsi_stats->ipv6_rx_fragments);
1150 host_stats->ipv6_datagram_reassembly =
1151 le64_to_cpu(ql_iscsi_stats->ipv6_datagram_reassembly);
1152 host_stats->ipv6_invalid_address_error =
1153 le64_to_cpu(ql_iscsi_stats->ipv6_invalid_address_error);
1154 host_stats->ipv6_error_packets =
1155 le64_to_cpu(ql_iscsi_stats->ipv6_error_packets);
1156 host_stats->ipv6_fragrx_overlap =
1157 le64_to_cpu(ql_iscsi_stats->ipv6_fragrx_overlap);
1158 host_stats->ipv6_fragrx_outoforder =
1159 le64_to_cpu(ql_iscsi_stats->ipv6_fragrx_outoforder);
1160 host_stats->ipv6_datagram_reassembly_timeout =
1161 le64_to_cpu(ql_iscsi_stats->ipv6_datagram_reassembly_timeout);
1162 host_stats->tcptx_segments =
1163 le64_to_cpu(ql_iscsi_stats->tcp_tx_segments);
1164 host_stats->tcptx_bytes = le64_to_cpu(ql_iscsi_stats->tcp_tx_bytes);
1165 host_stats->tcprx_segments =
1166 le64_to_cpu(ql_iscsi_stats->tcp_rx_segments);
1167 host_stats->tcprx_byte = le64_to_cpu(ql_iscsi_stats->tcp_rx_byte);
1168 host_stats->tcp_duplicate_ack_retx =
1169 le64_to_cpu(ql_iscsi_stats->tcp_duplicate_ack_retx);
1170 host_stats->tcp_retx_timer_expired =
1171 le64_to_cpu(ql_iscsi_stats->tcp_retx_timer_expired);
1172 host_stats->tcprx_duplicate_ack =
1173 le64_to_cpu(ql_iscsi_stats->tcp_rx_duplicate_ack);
1174 host_stats->tcprx_pure_ackr =
1175 le64_to_cpu(ql_iscsi_stats->tcp_rx_pure_ackr);
1176 host_stats->tcptx_delayed_ack =
1177 le64_to_cpu(ql_iscsi_stats->tcp_tx_delayed_ack);
1178 host_stats->tcptx_pure_ack =
1179 le64_to_cpu(ql_iscsi_stats->tcp_tx_pure_ack);
1180 host_stats->tcprx_segment_error =
1181 le64_to_cpu(ql_iscsi_stats->tcp_rx_segment_error);
1182 host_stats->tcprx_segment_outoforder =
1183 le64_to_cpu(ql_iscsi_stats->tcp_rx_segment_outoforder);
1184 host_stats->tcprx_window_probe =
1185 le64_to_cpu(ql_iscsi_stats->tcp_rx_window_probe);
1186 host_stats->tcprx_window_update =
1187 le64_to_cpu(ql_iscsi_stats->tcp_rx_window_update);
1188 host_stats->tcptx_window_probe_persist =
1189 le64_to_cpu(ql_iscsi_stats->tcp_tx_window_probe_persist);
1190 host_stats->ecc_error_correction =
1191 le64_to_cpu(ql_iscsi_stats->ecc_error_correction);
1192 host_stats->iscsi_pdu_tx = le64_to_cpu(ql_iscsi_stats->iscsi_pdu_tx);
1193 host_stats->iscsi_data_bytes_tx =
1194 le64_to_cpu(ql_iscsi_stats->iscsi_data_bytes_tx);
1195 host_stats->iscsi_pdu_rx = le64_to_cpu(ql_iscsi_stats->iscsi_pdu_rx);
1196 host_stats->iscsi_data_bytes_rx =
1197 le64_to_cpu(ql_iscsi_stats->iscsi_data_bytes_rx);
1198 host_stats->iscsi_io_completed =
1199 le64_to_cpu(ql_iscsi_stats->iscsi_io_completed);
1200 host_stats->iscsi_unexpected_io_rx =
1201 le64_to_cpu(ql_iscsi_stats->iscsi_unexpected_io_rx);
1202 host_stats->iscsi_format_error =
1203 le64_to_cpu(ql_iscsi_stats->iscsi_format_error);
1204 host_stats->iscsi_hdr_digest_error =
1205 le64_to_cpu(ql_iscsi_stats->iscsi_hdr_digest_error);
1206 host_stats->iscsi_data_digest_error =
1207 le64_to_cpu(ql_iscsi_stats->iscsi_data_digest_error);
1208 host_stats->iscsi_sequence_error =
1209 le64_to_cpu(ql_iscsi_stats->iscsi_sequence_error);
1210 exit_host_stats:
1211 if (ql_iscsi_stats)
1212 dma_free_coherent(&ha->pdev->dev, host_stats_size,
1213 ql_iscsi_stats, iscsi_stats_dma);
1214
1215 ql4_printk(KERN_INFO, ha, "%s: Get host stats done\n",
1216 __func__);
1217 return ret;
1218 }
1219
1220 static int qla4xxx_get_iface_param(struct iscsi_iface *iface,
1221 enum iscsi_param_type param_type,
1222 int param, char *buf)
1223 {
1224 struct Scsi_Host *shost = iscsi_iface_to_shost(iface);
1225 struct scsi_qla_host *ha = to_qla_host(shost);
1226 int ival;
1227 char *pval = NULL;
1228 int len = -ENOSYS;
1229
1230 if (param_type == ISCSI_NET_PARAM) {
1231 switch (param) {
1232 case ISCSI_NET_PARAM_IPV4_ADDR:
1233 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address);
1234 break;
1235 case ISCSI_NET_PARAM_IPV4_SUBNET:
1236 len = sprintf(buf, "%pI4\n",
1237 &ha->ip_config.subnet_mask);
1238 break;
1239 case ISCSI_NET_PARAM_IPV4_GW:
1240 len = sprintf(buf, "%pI4\n", &ha->ip_config.gateway);
1241 break;
1242 case ISCSI_NET_PARAM_IFACE_ENABLE:
1243 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1244 OP_STATE(ha->ip_config.ipv4_options,
1245 IPOPT_IPV4_PROTOCOL_ENABLE, pval);
1246 } else {
1247 OP_STATE(ha->ip_config.ipv6_options,
1248 IPV6_OPT_IPV6_PROTOCOL_ENABLE, pval);
1249 }
1250
1251 len = sprintf(buf, "%s\n", pval);
1252 break;
1253 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
1254 len = sprintf(buf, "%s\n",
1255 (ha->ip_config.tcp_options &
1256 TCPOPT_DHCP_ENABLE) ?
1257 "dhcp" : "static");
1258 break;
1259 case ISCSI_NET_PARAM_IPV6_ADDR:
1260 if (iface->iface_num == 0)
1261 len = sprintf(buf, "%pI6\n",
1262 &ha->ip_config.ipv6_addr0);
1263 if (iface->iface_num == 1)
1264 len = sprintf(buf, "%pI6\n",
1265 &ha->ip_config.ipv6_addr1);
1266 break;
1267 case ISCSI_NET_PARAM_IPV6_LINKLOCAL:
1268 len = sprintf(buf, "%pI6\n",
1269 &ha->ip_config.ipv6_link_local_addr);
1270 break;
1271 case ISCSI_NET_PARAM_IPV6_ROUTER:
1272 len = sprintf(buf, "%pI6\n",
1273 &ha->ip_config.ipv6_default_router_addr);
1274 break;
1275 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG:
1276 pval = (ha->ip_config.ipv6_addl_options &
1277 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE) ?
1278 "nd" : "static";
1279
1280 len = sprintf(buf, "%s\n", pval);
1281 break;
1282 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG:
1283 pval = (ha->ip_config.ipv6_addl_options &
1284 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR) ?
1285 "auto" : "static";
1286
1287 len = sprintf(buf, "%s\n", pval);
1288 break;
1289 case ISCSI_NET_PARAM_VLAN_ID:
1290 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1291 ival = ha->ip_config.ipv4_vlan_tag &
1292 ISCSI_MAX_VLAN_ID;
1293 else
1294 ival = ha->ip_config.ipv6_vlan_tag &
1295 ISCSI_MAX_VLAN_ID;
1296
1297 len = sprintf(buf, "%d\n", ival);
1298 break;
1299 case ISCSI_NET_PARAM_VLAN_PRIORITY:
1300 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1301 ival = (ha->ip_config.ipv4_vlan_tag >> 13) &
1302 ISCSI_MAX_VLAN_PRIORITY;
1303 else
1304 ival = (ha->ip_config.ipv6_vlan_tag >> 13) &
1305 ISCSI_MAX_VLAN_PRIORITY;
1306
1307 len = sprintf(buf, "%d\n", ival);
1308 break;
1309 case ISCSI_NET_PARAM_VLAN_ENABLED:
1310 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1311 OP_STATE(ha->ip_config.ipv4_options,
1312 IPOPT_VLAN_TAGGING_ENABLE, pval);
1313 } else {
1314 OP_STATE(ha->ip_config.ipv6_options,
1315 IPV6_OPT_VLAN_TAGGING_ENABLE, pval);
1316 }
1317 len = sprintf(buf, "%s\n", pval);
1318 break;
1319 case ISCSI_NET_PARAM_MTU:
1320 len = sprintf(buf, "%d\n", ha->ip_config.eth_mtu_size);
1321 break;
1322 case ISCSI_NET_PARAM_PORT:
1323 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1324 len = sprintf(buf, "%d\n",
1325 ha->ip_config.ipv4_port);
1326 else
1327 len = sprintf(buf, "%d\n",
1328 ha->ip_config.ipv6_port);
1329 break;
1330 case ISCSI_NET_PARAM_IPADDR_STATE:
1331 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1332 pval = iscsi_get_ipaddress_state_name(
1333 ha->ip_config.ipv4_addr_state);
1334 } else {
1335 if (iface->iface_num == 0)
1336 pval = iscsi_get_ipaddress_state_name(
1337 ha->ip_config.ipv6_addr0_state);
1338 else if (iface->iface_num == 1)
1339 pval = iscsi_get_ipaddress_state_name(
1340 ha->ip_config.ipv6_addr1_state);
1341 }
1342
1343 len = sprintf(buf, "%s\n", pval);
1344 break;
1345 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_STATE:
1346 pval = iscsi_get_ipaddress_state_name(
1347 ha->ip_config.ipv6_link_local_state);
1348 len = sprintf(buf, "%s\n", pval);
1349 break;
1350 case ISCSI_NET_PARAM_IPV6_ROUTER_STATE:
1351 pval = iscsi_get_router_state_name(
1352 ha->ip_config.ipv6_default_router_state);
1353 len = sprintf(buf, "%s\n", pval);
1354 break;
1355 case ISCSI_NET_PARAM_DELAYED_ACK_EN:
1356 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1357 OP_STATE(~ha->ip_config.tcp_options,
1358 TCPOPT_DELAYED_ACK_DISABLE, pval);
1359 } else {
1360 OP_STATE(~ha->ip_config.ipv6_tcp_options,
1361 IPV6_TCPOPT_DELAYED_ACK_DISABLE, pval);
1362 }
1363 len = sprintf(buf, "%s\n", pval);
1364 break;
1365 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE:
1366 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1367 OP_STATE(~ha->ip_config.tcp_options,
1368 TCPOPT_NAGLE_ALGO_DISABLE, pval);
1369 } else {
1370 OP_STATE(~ha->ip_config.ipv6_tcp_options,
1371 IPV6_TCPOPT_NAGLE_ALGO_DISABLE, pval);
1372 }
1373 len = sprintf(buf, "%s\n", pval);
1374 break;
1375 case ISCSI_NET_PARAM_TCP_WSF_DISABLE:
1376 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1377 OP_STATE(~ha->ip_config.tcp_options,
1378 TCPOPT_WINDOW_SCALE_DISABLE, pval);
1379 } else {
1380 OP_STATE(~ha->ip_config.ipv6_tcp_options,
1381 IPV6_TCPOPT_WINDOW_SCALE_DISABLE,
1382 pval);
1383 }
1384 len = sprintf(buf, "%s\n", pval);
1385 break;
1386 case ISCSI_NET_PARAM_TCP_WSF:
1387 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1388 len = sprintf(buf, "%d\n",
1389 ha->ip_config.tcp_wsf);
1390 else
1391 len = sprintf(buf, "%d\n",
1392 ha->ip_config.ipv6_tcp_wsf);
1393 break;
1394 case ISCSI_NET_PARAM_TCP_TIMER_SCALE:
1395 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1396 ival = (ha->ip_config.tcp_options &
1397 TCPOPT_TIMER_SCALE) >> 1;
1398 else
1399 ival = (ha->ip_config.ipv6_tcp_options &
1400 IPV6_TCPOPT_TIMER_SCALE) >> 1;
1401
1402 len = sprintf(buf, "%d\n", ival);
1403 break;
1404 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN:
1405 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1406 OP_STATE(ha->ip_config.tcp_options,
1407 TCPOPT_TIMESTAMP_ENABLE, pval);
1408 } else {
1409 OP_STATE(ha->ip_config.ipv6_tcp_options,
1410 IPV6_TCPOPT_TIMESTAMP_EN, pval);
1411 }
1412 len = sprintf(buf, "%s\n", pval);
1413 break;
1414 case ISCSI_NET_PARAM_CACHE_ID:
1415 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1416 len = sprintf(buf, "%d\n",
1417 ha->ip_config.ipv4_cache_id);
1418 else
1419 len = sprintf(buf, "%d\n",
1420 ha->ip_config.ipv6_cache_id);
1421 break;
1422 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN:
1423 OP_STATE(ha->ip_config.tcp_options,
1424 TCPOPT_DNS_SERVER_IP_EN, pval);
1425
1426 len = sprintf(buf, "%s\n", pval);
1427 break;
1428 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN:
1429 OP_STATE(ha->ip_config.tcp_options,
1430 TCPOPT_SLP_DA_INFO_EN, pval);
1431
1432 len = sprintf(buf, "%s\n", pval);
1433 break;
1434 case ISCSI_NET_PARAM_IPV4_TOS_EN:
1435 OP_STATE(ha->ip_config.ipv4_options,
1436 IPOPT_IPV4_TOS_EN, pval);
1437
1438 len = sprintf(buf, "%s\n", pval);
1439 break;
1440 case ISCSI_NET_PARAM_IPV4_TOS:
1441 len = sprintf(buf, "%d\n", ha->ip_config.ipv4_tos);
1442 break;
1443 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN:
1444 OP_STATE(ha->ip_config.ipv4_options,
1445 IPOPT_GRAT_ARP_EN, pval);
1446
1447 len = sprintf(buf, "%s\n", pval);
1448 break;
1449 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN:
1450 OP_STATE(ha->ip_config.ipv4_options, IPOPT_ALT_CID_EN,
1451 pval);
1452
1453 len = sprintf(buf, "%s\n", pval);
1454 break;
1455 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID:
1456 pval = (ha->ip_config.ipv4_alt_cid_len) ?
1457 (char *)ha->ip_config.ipv4_alt_cid : "";
1458
1459 len = sprintf(buf, "%s\n", pval);
1460 break;
1461 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN:
1462 OP_STATE(ha->ip_config.ipv4_options,
1463 IPOPT_REQ_VID_EN, pval);
1464
1465 len = sprintf(buf, "%s\n", pval);
1466 break;
1467 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN:
1468 OP_STATE(ha->ip_config.ipv4_options,
1469 IPOPT_USE_VID_EN, pval);
1470
1471 len = sprintf(buf, "%s\n", pval);
1472 break;
1473 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID:
1474 pval = (ha->ip_config.ipv4_vid_len) ?
1475 (char *)ha->ip_config.ipv4_vid : "";
1476
1477 len = sprintf(buf, "%s\n", pval);
1478 break;
1479 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN:
1480 OP_STATE(ha->ip_config.ipv4_options,
1481 IPOPT_LEARN_IQN_EN, pval);
1482
1483 len = sprintf(buf, "%s\n", pval);
1484 break;
1485 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE:
1486 OP_STATE(~ha->ip_config.ipv4_options,
1487 IPOPT_FRAGMENTATION_DISABLE, pval);
1488
1489 len = sprintf(buf, "%s\n", pval);
1490 break;
1491 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN:
1492 OP_STATE(ha->ip_config.ipv4_options,
1493 IPOPT_IN_FORWARD_EN, pval);
1494
1495 len = sprintf(buf, "%s\n", pval);
1496 break;
1497 case ISCSI_NET_PARAM_REDIRECT_EN:
1498 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1499 OP_STATE(ha->ip_config.ipv4_options,
1500 IPOPT_ARP_REDIRECT_EN, pval);
1501 } else {
1502 OP_STATE(ha->ip_config.ipv6_options,
1503 IPV6_OPT_REDIRECT_EN, pval);
1504 }
1505 len = sprintf(buf, "%s\n", pval);
1506 break;
1507 case ISCSI_NET_PARAM_IPV4_TTL:
1508 len = sprintf(buf, "%d\n", ha->ip_config.ipv4_ttl);
1509 break;
1510 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN:
1511 OP_STATE(ha->ip_config.ipv6_options,
1512 IPV6_OPT_GRAT_NEIGHBOR_ADV_EN, pval);
1513
1514 len = sprintf(buf, "%s\n", pval);
1515 break;
1516 case ISCSI_NET_PARAM_IPV6_MLD_EN:
1517 OP_STATE(ha->ip_config.ipv6_addl_options,
1518 IPV6_ADDOPT_MLD_EN, pval);
1519
1520 len = sprintf(buf, "%s\n", pval);
1521 break;
1522 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL:
1523 len = sprintf(buf, "%u\n", ha->ip_config.ipv6_flow_lbl);
1524 break;
1525 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS:
1526 len = sprintf(buf, "%d\n",
1527 ha->ip_config.ipv6_traffic_class);
1528 break;
1529 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT:
1530 len = sprintf(buf, "%d\n",
1531 ha->ip_config.ipv6_hop_limit);
1532 break;
1533 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO:
1534 len = sprintf(buf, "%d\n",
1535 ha->ip_config.ipv6_nd_reach_time);
1536 break;
1537 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME:
1538 len = sprintf(buf, "%d\n",
1539 ha->ip_config.ipv6_nd_rexmit_timer);
1540 break;
1541 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO:
1542 len = sprintf(buf, "%d\n",
1543 ha->ip_config.ipv6_nd_stale_timeout);
1544 break;
1545 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT:
1546 len = sprintf(buf, "%d\n",
1547 ha->ip_config.ipv6_dup_addr_detect_count);
1548 break;
1549 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU:
1550 len = sprintf(buf, "%d\n",
1551 ha->ip_config.ipv6_gw_advrt_mtu);
1552 break;
1553 default:
1554 len = -ENOSYS;
1555 }
1556 } else if (param_type == ISCSI_IFACE_PARAM) {
1557 switch (param) {
1558 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO:
1559 len = sprintf(buf, "%d\n", ha->ip_config.def_timeout);
1560 break;
1561 case ISCSI_IFACE_PARAM_HDRDGST_EN:
1562 OP_STATE(ha->ip_config.iscsi_options,
1563 ISCSIOPTS_HEADER_DIGEST_EN, pval);
1564
1565 len = sprintf(buf, "%s\n", pval);
1566 break;
1567 case ISCSI_IFACE_PARAM_DATADGST_EN:
1568 OP_STATE(ha->ip_config.iscsi_options,
1569 ISCSIOPTS_DATA_DIGEST_EN, pval);
1570
1571 len = sprintf(buf, "%s\n", pval);
1572 break;
1573 case ISCSI_IFACE_PARAM_IMM_DATA_EN:
1574 OP_STATE(ha->ip_config.iscsi_options,
1575 ISCSIOPTS_IMMEDIATE_DATA_EN, pval);
1576
1577 len = sprintf(buf, "%s\n", pval);
1578 break;
1579 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN:
1580 OP_STATE(ha->ip_config.iscsi_options,
1581 ISCSIOPTS_INITIAL_R2T_EN, pval);
1582
1583 len = sprintf(buf, "%s\n", pval);
1584 break;
1585 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN:
1586 OP_STATE(ha->ip_config.iscsi_options,
1587 ISCSIOPTS_DATA_SEQ_INORDER_EN, pval);
1588
1589 len = sprintf(buf, "%s\n", pval);
1590 break;
1591 case ISCSI_IFACE_PARAM_PDU_INORDER_EN:
1592 OP_STATE(ha->ip_config.iscsi_options,
1593 ISCSIOPTS_DATA_PDU_INORDER_EN, pval);
1594
1595 len = sprintf(buf, "%s\n", pval);
1596 break;
1597 case ISCSI_IFACE_PARAM_ERL:
1598 len = sprintf(buf, "%d\n",
1599 (ha->ip_config.iscsi_options &
1600 ISCSIOPTS_ERL));
1601 break;
1602 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH:
1603 len = sprintf(buf, "%u\n",
1604 ha->ip_config.iscsi_max_pdu_size *
1605 BYTE_UNITS);
1606 break;
1607 case ISCSI_IFACE_PARAM_FIRST_BURST:
1608 len = sprintf(buf, "%u\n",
1609 ha->ip_config.iscsi_first_burst_len *
1610 BYTE_UNITS);
1611 break;
1612 case ISCSI_IFACE_PARAM_MAX_R2T:
1613 len = sprintf(buf, "%d\n",
1614 ha->ip_config.iscsi_max_outstnd_r2t);
1615 break;
1616 case ISCSI_IFACE_PARAM_MAX_BURST:
1617 len = sprintf(buf, "%u\n",
1618 ha->ip_config.iscsi_max_burst_len *
1619 BYTE_UNITS);
1620 break;
1621 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN:
1622 OP_STATE(ha->ip_config.iscsi_options,
1623 ISCSIOPTS_CHAP_AUTH_EN, pval);
1624
1625 len = sprintf(buf, "%s\n", pval);
1626 break;
1627 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN:
1628 OP_STATE(ha->ip_config.iscsi_options,
1629 ISCSIOPTS_BIDI_CHAP_EN, pval);
1630
1631 len = sprintf(buf, "%s\n", pval);
1632 break;
1633 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL:
1634 OP_STATE(ha->ip_config.iscsi_options,
1635 ISCSIOPTS_DISCOVERY_AUTH_EN, pval);
1636
1637 len = sprintf(buf, "%s\n", pval);
1638 break;
1639 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN:
1640 OP_STATE(ha->ip_config.iscsi_options,
1641 ISCSIOPTS_DISCOVERY_LOGOUT_EN, pval);
1642
1643 len = sprintf(buf, "%s\n", pval);
1644 break;
1645 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN:
1646 OP_STATE(ha->ip_config.iscsi_options,
1647 ISCSIOPTS_STRICT_LOGIN_COMP_EN, pval);
1648
1649 len = sprintf(buf, "%s\n", pval);
1650 break;
1651 case ISCSI_IFACE_PARAM_INITIATOR_NAME:
1652 len = sprintf(buf, "%s\n", ha->ip_config.iscsi_name);
1653 break;
1654 default:
1655 len = -ENOSYS;
1656 }
1657 }
1658
1659 return len;
1660 }
1661
1662 static struct iscsi_endpoint *
1663 qla4xxx_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr,
1664 int non_blocking)
1665 {
1666 int ret;
1667 struct iscsi_endpoint *ep;
1668 struct qla_endpoint *qla_ep;
1669 struct scsi_qla_host *ha;
1670 struct sockaddr_in *addr;
1671 struct sockaddr_in6 *addr6;
1672
1673 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
1674 if (!shost) {
1675 ret = -ENXIO;
1676 printk(KERN_ERR "%s: shost is NULL\n",
1677 __func__);
1678 return ERR_PTR(ret);
1679 }
1680
1681 ha = iscsi_host_priv(shost);
1682
1683 ep = iscsi_create_endpoint(sizeof(struct qla_endpoint));
1684 if (!ep) {
1685 ret = -ENOMEM;
1686 return ERR_PTR(ret);
1687 }
1688
1689 qla_ep = ep->dd_data;
1690 memset(qla_ep, 0, sizeof(struct qla_endpoint));
1691 if (dst_addr->sa_family == AF_INET) {
1692 memcpy(&qla_ep->dst_addr, dst_addr, sizeof(struct sockaddr_in));
1693 addr = (struct sockaddr_in *)&qla_ep->dst_addr;
1694 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI4\n", __func__,
1695 (char *)&addr->sin_addr));
1696 } else if (dst_addr->sa_family == AF_INET6) {
1697 memcpy(&qla_ep->dst_addr, dst_addr,
1698 sizeof(struct sockaddr_in6));
1699 addr6 = (struct sockaddr_in6 *)&qla_ep->dst_addr;
1700 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI6\n", __func__,
1701 (char *)&addr6->sin6_addr));
1702 }
1703
1704 qla_ep->host = shost;
1705
1706 return ep;
1707 }
1708
1709 static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms)
1710 {
1711 struct qla_endpoint *qla_ep;
1712 struct scsi_qla_host *ha;
1713 int ret = 0;
1714
1715 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
1716 qla_ep = ep->dd_data;
1717 ha = to_qla_host(qla_ep->host);
1718
1719 if (adapter_up(ha) && !test_bit(AF_BUILD_DDB_LIST, &ha->flags))
1720 ret = 1;
1721
1722 return ret;
1723 }
1724
1725 static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep)
1726 {
1727 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
1728 iscsi_destroy_endpoint(ep);
1729 }
1730
1731 static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep,
1732 enum iscsi_param param,
1733 char *buf)
1734 {
1735 struct qla_endpoint *qla_ep = ep->dd_data;
1736 struct sockaddr *dst_addr;
1737
1738 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
1739
1740 switch (param) {
1741 case ISCSI_PARAM_CONN_PORT:
1742 case ISCSI_PARAM_CONN_ADDRESS:
1743 if (!qla_ep)
1744 return -ENOTCONN;
1745
1746 dst_addr = (struct sockaddr *)&qla_ep->dst_addr;
1747 if (!dst_addr)
1748 return -ENOTCONN;
1749
1750 return iscsi_conn_get_addr_param((struct sockaddr_storage *)
1751 &qla_ep->dst_addr, param, buf);
1752 default:
1753 return -ENOSYS;
1754 }
1755 }
1756
1757 static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn,
1758 struct iscsi_stats *stats)
1759 {
1760 struct iscsi_session *sess;
1761 struct iscsi_cls_session *cls_sess;
1762 struct ddb_entry *ddb_entry;
1763 struct scsi_qla_host *ha;
1764 struct ql_iscsi_stats *ql_iscsi_stats;
1765 int stats_size;
1766 int ret;
1767 dma_addr_t iscsi_stats_dma;
1768
1769 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
1770
1771 cls_sess = iscsi_conn_to_session(cls_conn);
1772 sess = cls_sess->dd_data;
1773 ddb_entry = sess->dd_data;
1774 ha = ddb_entry->ha;
1775
1776 stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats));
1777 /* Allocate memory */
1778 ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size,
1779 &iscsi_stats_dma, GFP_KERNEL);
1780 if (!ql_iscsi_stats) {
1781 ql4_printk(KERN_ERR, ha,
1782 "Unable to allocate memory for iscsi stats\n");
1783 goto exit_get_stats;
1784 }
1785
1786 ret = qla4xxx_get_mgmt_data(ha, ddb_entry->fw_ddb_index, stats_size,
1787 iscsi_stats_dma);
1788 if (ret != QLA_SUCCESS) {
1789 ql4_printk(KERN_ERR, ha,
1790 "Unable to retrieve iscsi stats\n");
1791 goto free_stats;
1792 }
1793
1794 /* octets */
1795 stats->txdata_octets = le64_to_cpu(ql_iscsi_stats->tx_data_octets);
1796 stats->rxdata_octets = le64_to_cpu(ql_iscsi_stats->rx_data_octets);
1797 /* xmit pdus */
1798 stats->noptx_pdus = le32_to_cpu(ql_iscsi_stats->tx_nopout_pdus);
1799 stats->scsicmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_cmd_pdus);
1800 stats->tmfcmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_tmf_cmd_pdus);
1801 stats->login_pdus = le32_to_cpu(ql_iscsi_stats->tx_login_cmd_pdus);
1802 stats->text_pdus = le32_to_cpu(ql_iscsi_stats->tx_text_cmd_pdus);
1803 stats->dataout_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_write_pdus);
1804 stats->logout_pdus = le32_to_cpu(ql_iscsi_stats->tx_logout_cmd_pdus);
1805 stats->snack_pdus = le32_to_cpu(ql_iscsi_stats->tx_snack_req_pdus);
1806 /* recv pdus */
1807 stats->noprx_pdus = le32_to_cpu(ql_iscsi_stats->rx_nopin_pdus);
1808 stats->scsirsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_resp_pdus);
1809 stats->tmfrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_tmf_resp_pdus);
1810 stats->textrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_text_resp_pdus);
1811 stats->datain_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_read_pdus);
1812 stats->logoutrsp_pdus =
1813 le32_to_cpu(ql_iscsi_stats->rx_logout_resp_pdus);
1814 stats->r2t_pdus = le32_to_cpu(ql_iscsi_stats->rx_r2t_pdus);
1815 stats->async_pdus = le32_to_cpu(ql_iscsi_stats->rx_async_pdus);
1816 stats->rjt_pdus = le32_to_cpu(ql_iscsi_stats->rx_reject_pdus);
1817
1818 free_stats:
1819 dma_free_coherent(&ha->pdev->dev, stats_size, ql_iscsi_stats,
1820 iscsi_stats_dma);
1821 exit_get_stats:
1822 return;
1823 }
1824
1825 static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc)
1826 {
1827 struct iscsi_cls_session *session;
1828 struct iscsi_session *sess;
1829 unsigned long flags;
1830 enum blk_eh_timer_return ret = BLK_EH_NOT_HANDLED;
1831
1832 session = starget_to_session(scsi_target(sc->device));
1833 sess = session->dd_data;
1834
1835 spin_lock_irqsave(&session->lock, flags);
1836 if (session->state == ISCSI_SESSION_FAILED)
1837 ret = BLK_EH_RESET_TIMER;
1838 spin_unlock_irqrestore(&session->lock, flags);
1839
1840 return ret;
1841 }
1842
1843 static void qla4xxx_set_port_speed(struct Scsi_Host *shost)
1844 {
1845 struct scsi_qla_host *ha = to_qla_host(shost);
1846 struct iscsi_cls_host *ihost = shost->shost_data;
1847 uint32_t speed = ISCSI_PORT_SPEED_UNKNOWN;
1848
1849 qla4xxx_get_firmware_state(ha);
1850
1851 switch (ha->addl_fw_state & 0x0F00) {
1852 case FW_ADDSTATE_LINK_SPEED_10MBPS:
1853 speed = ISCSI_PORT_SPEED_10MBPS;
1854 break;
1855 case FW_ADDSTATE_LINK_SPEED_100MBPS:
1856 speed = ISCSI_PORT_SPEED_100MBPS;
1857 break;
1858 case FW_ADDSTATE_LINK_SPEED_1GBPS:
1859 speed = ISCSI_PORT_SPEED_1GBPS;
1860 break;
1861 case FW_ADDSTATE_LINK_SPEED_10GBPS:
1862 speed = ISCSI_PORT_SPEED_10GBPS;
1863 break;
1864 }
1865 ihost->port_speed = speed;
1866 }
1867
1868 static void qla4xxx_set_port_state(struct Scsi_Host *shost)
1869 {
1870 struct scsi_qla_host *ha = to_qla_host(shost);
1871 struct iscsi_cls_host *ihost = shost->shost_data;
1872 uint32_t state = ISCSI_PORT_STATE_DOWN;
1873
1874 if (test_bit(AF_LINK_UP, &ha->flags))
1875 state = ISCSI_PORT_STATE_UP;
1876
1877 ihost->port_state = state;
1878 }
1879
1880 static int qla4xxx_host_get_param(struct Scsi_Host *shost,
1881 enum iscsi_host_param param, char *buf)
1882 {
1883 struct scsi_qla_host *ha = to_qla_host(shost);
1884 int len;
1885
1886 switch (param) {
1887 case ISCSI_HOST_PARAM_HWADDRESS:
1888 len = sysfs_format_mac(buf, ha->my_mac, MAC_ADDR_LEN);
1889 break;
1890 case ISCSI_HOST_PARAM_IPADDRESS:
1891 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address);
1892 break;
1893 case ISCSI_HOST_PARAM_INITIATOR_NAME:
1894 len = sprintf(buf, "%s\n", ha->name_string);
1895 break;
1896 case ISCSI_HOST_PARAM_PORT_STATE:
1897 qla4xxx_set_port_state(shost);
1898 len = sprintf(buf, "%s\n", iscsi_get_port_state_name(shost));
1899 break;
1900 case ISCSI_HOST_PARAM_PORT_SPEED:
1901 qla4xxx_set_port_speed(shost);
1902 len = sprintf(buf, "%s\n", iscsi_get_port_speed_name(shost));
1903 break;
1904 default:
1905 return -ENOSYS;
1906 }
1907
1908 return len;
1909 }
1910
1911 static void qla4xxx_create_ipv4_iface(struct scsi_qla_host *ha)
1912 {
1913 if (ha->iface_ipv4)
1914 return;
1915
1916 /* IPv4 */
1917 ha->iface_ipv4 = iscsi_create_iface(ha->host,
1918 &qla4xxx_iscsi_transport,
1919 ISCSI_IFACE_TYPE_IPV4, 0, 0);
1920 if (!ha->iface_ipv4)
1921 ql4_printk(KERN_ERR, ha, "Could not create IPv4 iSCSI "
1922 "iface0.\n");
1923 }
1924
1925 static void qla4xxx_create_ipv6_iface(struct scsi_qla_host *ha)
1926 {
1927 if (!ha->iface_ipv6_0)
1928 /* IPv6 iface-0 */
1929 ha->iface_ipv6_0 = iscsi_create_iface(ha->host,
1930 &qla4xxx_iscsi_transport,
1931 ISCSI_IFACE_TYPE_IPV6, 0,
1932 0);
1933 if (!ha->iface_ipv6_0)
1934 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI "
1935 "iface0.\n");
1936
1937 if (!ha->iface_ipv6_1)
1938 /* IPv6 iface-1 */
1939 ha->iface_ipv6_1 = iscsi_create_iface(ha->host,
1940 &qla4xxx_iscsi_transport,
1941 ISCSI_IFACE_TYPE_IPV6, 1,
1942 0);
1943 if (!ha->iface_ipv6_1)
1944 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI "
1945 "iface1.\n");
1946 }
1947
1948 static void qla4xxx_create_ifaces(struct scsi_qla_host *ha)
1949 {
1950 if (ha->ip_config.ipv4_options & IPOPT_IPV4_PROTOCOL_ENABLE)
1951 qla4xxx_create_ipv4_iface(ha);
1952
1953 if (ha->ip_config.ipv6_options & IPV6_OPT_IPV6_PROTOCOL_ENABLE)
1954 qla4xxx_create_ipv6_iface(ha);
1955 }
1956
1957 static void qla4xxx_destroy_ipv4_iface(struct scsi_qla_host *ha)
1958 {
1959 if (ha->iface_ipv4) {
1960 iscsi_destroy_iface(ha->iface_ipv4);
1961 ha->iface_ipv4 = NULL;
1962 }
1963 }
1964
1965 static void qla4xxx_destroy_ipv6_iface(struct scsi_qla_host *ha)
1966 {
1967 if (ha->iface_ipv6_0) {
1968 iscsi_destroy_iface(ha->iface_ipv6_0);
1969 ha->iface_ipv6_0 = NULL;
1970 }
1971 if (ha->iface_ipv6_1) {
1972 iscsi_destroy_iface(ha->iface_ipv6_1);
1973 ha->iface_ipv6_1 = NULL;
1974 }
1975 }
1976
1977 static void qla4xxx_destroy_ifaces(struct scsi_qla_host *ha)
1978 {
1979 qla4xxx_destroy_ipv4_iface(ha);
1980 qla4xxx_destroy_ipv6_iface(ha);
1981 }
1982
1983 static void qla4xxx_set_ipv6(struct scsi_qla_host *ha,
1984 struct iscsi_iface_param_info *iface_param,
1985 struct addr_ctrl_blk *init_fw_cb)
1986 {
1987 /*
1988 * iface_num 0 is valid for IPv6 Addr, linklocal, router, autocfg.
1989 * iface_num 1 is valid only for IPv6 Addr.
1990 */
1991 switch (iface_param->param) {
1992 case ISCSI_NET_PARAM_IPV6_ADDR:
1993 if (iface_param->iface_num & 0x1)
1994 /* IPv6 Addr 1 */
1995 memcpy(init_fw_cb->ipv6_addr1, iface_param->value,
1996 sizeof(init_fw_cb->ipv6_addr1));
1997 else
1998 /* IPv6 Addr 0 */
1999 memcpy(init_fw_cb->ipv6_addr0, iface_param->value,
2000 sizeof(init_fw_cb->ipv6_addr0));
2001 break;
2002 case ISCSI_NET_PARAM_IPV6_LINKLOCAL:
2003 if (iface_param->iface_num & 0x1)
2004 break;
2005 memcpy(init_fw_cb->ipv6_if_id, &iface_param->value[8],
2006 sizeof(init_fw_cb->ipv6_if_id));
2007 break;
2008 case ISCSI_NET_PARAM_IPV6_ROUTER:
2009 if (iface_param->iface_num & 0x1)
2010 break;
2011 memcpy(init_fw_cb->ipv6_dflt_rtr_addr, iface_param->value,
2012 sizeof(init_fw_cb->ipv6_dflt_rtr_addr));
2013 break;
2014 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG:
2015 /* Autocfg applies to even interface */
2016 if (iface_param->iface_num & 0x1)
2017 break;
2018
2019 if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_DISABLE)
2020 init_fw_cb->ipv6_addtl_opts &=
2021 cpu_to_le16(
2022 ~IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE);
2023 else if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_ND_ENABLE)
2024 init_fw_cb->ipv6_addtl_opts |=
2025 cpu_to_le16(
2026 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE);
2027 else
2028 ql4_printk(KERN_ERR, ha,
2029 "Invalid autocfg setting for IPv6 addr\n");
2030 break;
2031 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG:
2032 /* Autocfg applies to even interface */
2033 if (iface_param->iface_num & 0x1)
2034 break;
2035
2036 if (iface_param->value[0] ==
2037 ISCSI_IPV6_LINKLOCAL_AUTOCFG_ENABLE)
2038 init_fw_cb->ipv6_addtl_opts |= cpu_to_le16(
2039 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR);
2040 else if (iface_param->value[0] ==
2041 ISCSI_IPV6_LINKLOCAL_AUTOCFG_DISABLE)
2042 init_fw_cb->ipv6_addtl_opts &= cpu_to_le16(
2043 ~IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR);
2044 else
2045 ql4_printk(KERN_ERR, ha,
2046 "Invalid autocfg setting for IPv6 linklocal addr\n");
2047 break;
2048 case ISCSI_NET_PARAM_IPV6_ROUTER_AUTOCFG:
2049 /* Autocfg applies to even interface */
2050 if (iface_param->iface_num & 0x1)
2051 break;
2052
2053 if (iface_param->value[0] == ISCSI_IPV6_ROUTER_AUTOCFG_ENABLE)
2054 memset(init_fw_cb->ipv6_dflt_rtr_addr, 0,
2055 sizeof(init_fw_cb->ipv6_dflt_rtr_addr));
2056 break;
2057 case ISCSI_NET_PARAM_IFACE_ENABLE:
2058 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) {
2059 init_fw_cb->ipv6_opts |=
2060 cpu_to_le16(IPV6_OPT_IPV6_PROTOCOL_ENABLE);
2061 qla4xxx_create_ipv6_iface(ha);
2062 } else {
2063 init_fw_cb->ipv6_opts &=
2064 cpu_to_le16(~IPV6_OPT_IPV6_PROTOCOL_ENABLE &
2065 0xFFFF);
2066 qla4xxx_destroy_ipv6_iface(ha);
2067 }
2068 break;
2069 case ISCSI_NET_PARAM_VLAN_TAG:
2070 if (iface_param->len != sizeof(init_fw_cb->ipv6_vlan_tag))
2071 break;
2072 init_fw_cb->ipv6_vlan_tag =
2073 cpu_to_be16(*(uint16_t *)iface_param->value);
2074 break;
2075 case ISCSI_NET_PARAM_VLAN_ENABLED:
2076 if (iface_param->value[0] == ISCSI_VLAN_ENABLE)
2077 init_fw_cb->ipv6_opts |=
2078 cpu_to_le16(IPV6_OPT_VLAN_TAGGING_ENABLE);
2079 else
2080 init_fw_cb->ipv6_opts &=
2081 cpu_to_le16(~IPV6_OPT_VLAN_TAGGING_ENABLE);
2082 break;
2083 case ISCSI_NET_PARAM_MTU:
2084 init_fw_cb->eth_mtu_size =
2085 cpu_to_le16(*(uint16_t *)iface_param->value);
2086 break;
2087 case ISCSI_NET_PARAM_PORT:
2088 /* Autocfg applies to even interface */
2089 if (iface_param->iface_num & 0x1)
2090 break;
2091
2092 init_fw_cb->ipv6_port =
2093 cpu_to_le16(*(uint16_t *)iface_param->value);
2094 break;
2095 case ISCSI_NET_PARAM_DELAYED_ACK_EN:
2096 if (iface_param->iface_num & 0x1)
2097 break;
2098 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2099 init_fw_cb->ipv6_tcp_opts |=
2100 cpu_to_le16(IPV6_TCPOPT_DELAYED_ACK_DISABLE);
2101 else
2102 init_fw_cb->ipv6_tcp_opts &=
2103 cpu_to_le16(~IPV6_TCPOPT_DELAYED_ACK_DISABLE);
2104 break;
2105 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE:
2106 if (iface_param->iface_num & 0x1)
2107 break;
2108 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2109 init_fw_cb->ipv6_tcp_opts |=
2110 cpu_to_le16(IPV6_TCPOPT_NAGLE_ALGO_DISABLE);
2111 else
2112 init_fw_cb->ipv6_tcp_opts &=
2113 cpu_to_le16(~IPV6_TCPOPT_NAGLE_ALGO_DISABLE);
2114 break;
2115 case ISCSI_NET_PARAM_TCP_WSF_DISABLE:
2116 if (iface_param->iface_num & 0x1)
2117 break;
2118 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2119 init_fw_cb->ipv6_tcp_opts |=
2120 cpu_to_le16(IPV6_TCPOPT_WINDOW_SCALE_DISABLE);
2121 else
2122 init_fw_cb->ipv6_tcp_opts &=
2123 cpu_to_le16(~IPV6_TCPOPT_WINDOW_SCALE_DISABLE);
2124 break;
2125 case ISCSI_NET_PARAM_TCP_WSF:
2126 if (iface_param->iface_num & 0x1)
2127 break;
2128 init_fw_cb->ipv6_tcp_wsf = iface_param->value[0];
2129 break;
2130 case ISCSI_NET_PARAM_TCP_TIMER_SCALE:
2131 if (iface_param->iface_num & 0x1)
2132 break;
2133 init_fw_cb->ipv6_tcp_opts &=
2134 cpu_to_le16(~IPV6_TCPOPT_TIMER_SCALE);
2135 init_fw_cb->ipv6_tcp_opts |=
2136 cpu_to_le16((iface_param->value[0] << 1) &
2137 IPV6_TCPOPT_TIMER_SCALE);
2138 break;
2139 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN:
2140 if (iface_param->iface_num & 0x1)
2141 break;
2142 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2143 init_fw_cb->ipv6_tcp_opts |=
2144 cpu_to_le16(IPV6_TCPOPT_TIMESTAMP_EN);
2145 else
2146 init_fw_cb->ipv6_tcp_opts &=
2147 cpu_to_le16(~IPV6_TCPOPT_TIMESTAMP_EN);
2148 break;
2149 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN:
2150 if (iface_param->iface_num & 0x1)
2151 break;
2152 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2153 init_fw_cb->ipv6_opts |=
2154 cpu_to_le16(IPV6_OPT_GRAT_NEIGHBOR_ADV_EN);
2155 else
2156 init_fw_cb->ipv6_opts &=
2157 cpu_to_le16(~IPV6_OPT_GRAT_NEIGHBOR_ADV_EN);
2158 break;
2159 case ISCSI_NET_PARAM_REDIRECT_EN:
2160 if (iface_param->iface_num & 0x1)
2161 break;
2162 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2163 init_fw_cb->ipv6_opts |=
2164 cpu_to_le16(IPV6_OPT_REDIRECT_EN);
2165 else
2166 init_fw_cb->ipv6_opts &=
2167 cpu_to_le16(~IPV6_OPT_REDIRECT_EN);
2168 break;
2169 case ISCSI_NET_PARAM_IPV6_MLD_EN:
2170 if (iface_param->iface_num & 0x1)
2171 break;
2172 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2173 init_fw_cb->ipv6_addtl_opts |=
2174 cpu_to_le16(IPV6_ADDOPT_MLD_EN);
2175 else
2176 init_fw_cb->ipv6_addtl_opts &=
2177 cpu_to_le16(~IPV6_ADDOPT_MLD_EN);
2178 break;
2179 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL:
2180 if (iface_param->iface_num & 0x1)
2181 break;
2182 init_fw_cb->ipv6_flow_lbl =
2183 cpu_to_le16(*(uint16_t *)iface_param->value);
2184 break;
2185 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS:
2186 if (iface_param->iface_num & 0x1)
2187 break;
2188 init_fw_cb->ipv6_traffic_class = iface_param->value[0];
2189 break;
2190 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT:
2191 if (iface_param->iface_num & 0x1)
2192 break;
2193 init_fw_cb->ipv6_hop_limit = iface_param->value[0];
2194 break;
2195 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO:
2196 if (iface_param->iface_num & 0x1)
2197 break;
2198 init_fw_cb->ipv6_nd_reach_time =
2199 cpu_to_le32(*(uint32_t *)iface_param->value);
2200 break;
2201 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME:
2202 if (iface_param->iface_num & 0x1)
2203 break;
2204 init_fw_cb->ipv6_nd_rexmit_timer =
2205 cpu_to_le32(*(uint32_t *)iface_param->value);
2206 break;
2207 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO:
2208 if (iface_param->iface_num & 0x1)
2209 break;
2210 init_fw_cb->ipv6_nd_stale_timeout =
2211 cpu_to_le32(*(uint32_t *)iface_param->value);
2212 break;
2213 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT:
2214 if (iface_param->iface_num & 0x1)
2215 break;
2216 init_fw_cb->ipv6_dup_addr_detect_count = iface_param->value[0];
2217 break;
2218 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU:
2219 if (iface_param->iface_num & 0x1)
2220 break;
2221 init_fw_cb->ipv6_gw_advrt_mtu =
2222 cpu_to_le32(*(uint32_t *)iface_param->value);
2223 break;
2224 default:
2225 ql4_printk(KERN_ERR, ha, "Unknown IPv6 param = %d\n",
2226 iface_param->param);
2227 break;
2228 }
2229 }
2230
2231 static void qla4xxx_set_ipv4(struct scsi_qla_host *ha,
2232 struct iscsi_iface_param_info *iface_param,
2233 struct addr_ctrl_blk *init_fw_cb)
2234 {
2235 switch (iface_param->param) {
2236 case ISCSI_NET_PARAM_IPV4_ADDR:
2237 memcpy(init_fw_cb->ipv4_addr, iface_param->value,
2238 sizeof(init_fw_cb->ipv4_addr));
2239 break;
2240 case ISCSI_NET_PARAM_IPV4_SUBNET:
2241 memcpy(init_fw_cb->ipv4_subnet, iface_param->value,
2242 sizeof(init_fw_cb->ipv4_subnet));
2243 break;
2244 case ISCSI_NET_PARAM_IPV4_GW:
2245 memcpy(init_fw_cb->ipv4_gw_addr, iface_param->value,
2246 sizeof(init_fw_cb->ipv4_gw_addr));
2247 break;
2248 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
2249 if (iface_param->value[0] == ISCSI_BOOTPROTO_DHCP)
2250 init_fw_cb->ipv4_tcp_opts |=
2251 cpu_to_le16(TCPOPT_DHCP_ENABLE);
2252 else if (iface_param->value[0] == ISCSI_BOOTPROTO_STATIC)
2253 init_fw_cb->ipv4_tcp_opts &=
2254 cpu_to_le16(~TCPOPT_DHCP_ENABLE);
2255 else
2256 ql4_printk(KERN_ERR, ha, "Invalid IPv4 bootproto\n");
2257 break;
2258 case ISCSI_NET_PARAM_IFACE_ENABLE:
2259 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) {
2260 init_fw_cb->ipv4_ip_opts |=
2261 cpu_to_le16(IPOPT_IPV4_PROTOCOL_ENABLE);
2262 qla4xxx_create_ipv4_iface(ha);
2263 } else {
2264 init_fw_cb->ipv4_ip_opts &=
2265 cpu_to_le16(~IPOPT_IPV4_PROTOCOL_ENABLE &
2266 0xFFFF);
2267 qla4xxx_destroy_ipv4_iface(ha);
2268 }
2269 break;
2270 case ISCSI_NET_PARAM_VLAN_TAG:
2271 if (iface_param->len != sizeof(init_fw_cb->ipv4_vlan_tag))
2272 break;
2273 init_fw_cb->ipv4_vlan_tag =
2274 cpu_to_be16(*(uint16_t *)iface_param->value);
2275 break;
2276 case ISCSI_NET_PARAM_VLAN_ENABLED:
2277 if (iface_param->value[0] == ISCSI_VLAN_ENABLE)
2278 init_fw_cb->ipv4_ip_opts |=
2279 cpu_to_le16(IPOPT_VLAN_TAGGING_ENABLE);
2280 else
2281 init_fw_cb->ipv4_ip_opts &=
2282 cpu_to_le16(~IPOPT_VLAN_TAGGING_ENABLE);
2283 break;
2284 case ISCSI_NET_PARAM_MTU:
2285 init_fw_cb->eth_mtu_size =
2286 cpu_to_le16(*(uint16_t *)iface_param->value);
2287 break;
2288 case ISCSI_NET_PARAM_PORT:
2289 init_fw_cb->ipv4_port =
2290 cpu_to_le16(*(uint16_t *)iface_param->value);
2291 break;
2292 case ISCSI_NET_PARAM_DELAYED_ACK_EN:
2293 if (iface_param->iface_num & 0x1)
2294 break;
2295 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2296 init_fw_cb->ipv4_tcp_opts |=
2297 cpu_to_le16(TCPOPT_DELAYED_ACK_DISABLE);
2298 else
2299 init_fw_cb->ipv4_tcp_opts &=
2300 cpu_to_le16(~TCPOPT_DELAYED_ACK_DISABLE);
2301 break;
2302 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE:
2303 if (iface_param->iface_num & 0x1)
2304 break;
2305 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2306 init_fw_cb->ipv4_tcp_opts |=
2307 cpu_to_le16(TCPOPT_NAGLE_ALGO_DISABLE);
2308 else
2309 init_fw_cb->ipv4_tcp_opts &=
2310 cpu_to_le16(~TCPOPT_NAGLE_ALGO_DISABLE);
2311 break;
2312 case ISCSI_NET_PARAM_TCP_WSF_DISABLE:
2313 if (iface_param->iface_num & 0x1)
2314 break;
2315 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2316 init_fw_cb->ipv4_tcp_opts |=
2317 cpu_to_le16(TCPOPT_WINDOW_SCALE_DISABLE);
2318 else
2319 init_fw_cb->ipv4_tcp_opts &=
2320 cpu_to_le16(~TCPOPT_WINDOW_SCALE_DISABLE);
2321 break;
2322 case ISCSI_NET_PARAM_TCP_WSF:
2323 if (iface_param->iface_num & 0x1)
2324 break;
2325 init_fw_cb->ipv4_tcp_wsf = iface_param->value[0];
2326 break;
2327 case ISCSI_NET_PARAM_TCP_TIMER_SCALE:
2328 if (iface_param->iface_num & 0x1)
2329 break;
2330 init_fw_cb->ipv4_tcp_opts &= cpu_to_le16(~TCPOPT_TIMER_SCALE);
2331 init_fw_cb->ipv4_tcp_opts |=
2332 cpu_to_le16((iface_param->value[0] << 1) &
2333 TCPOPT_TIMER_SCALE);
2334 break;
2335 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN:
2336 if (iface_param->iface_num & 0x1)
2337 break;
2338 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2339 init_fw_cb->ipv4_tcp_opts |=
2340 cpu_to_le16(TCPOPT_TIMESTAMP_ENABLE);
2341 else
2342 init_fw_cb->ipv4_tcp_opts &=
2343 cpu_to_le16(~TCPOPT_TIMESTAMP_ENABLE);
2344 break;
2345 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN:
2346 if (iface_param->iface_num & 0x1)
2347 break;
2348 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2349 init_fw_cb->ipv4_tcp_opts |=
2350 cpu_to_le16(TCPOPT_DNS_SERVER_IP_EN);
2351 else
2352 init_fw_cb->ipv4_tcp_opts &=
2353 cpu_to_le16(~TCPOPT_DNS_SERVER_IP_EN);
2354 break;
2355 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN:
2356 if (iface_param->iface_num & 0x1)
2357 break;
2358 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2359 init_fw_cb->ipv4_tcp_opts |=
2360 cpu_to_le16(TCPOPT_SLP_DA_INFO_EN);
2361 else
2362 init_fw_cb->ipv4_tcp_opts &=
2363 cpu_to_le16(~TCPOPT_SLP_DA_INFO_EN);
2364 break;
2365 case ISCSI_NET_PARAM_IPV4_TOS_EN:
2366 if (iface_param->iface_num & 0x1)
2367 break;
2368 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2369 init_fw_cb->ipv4_ip_opts |=
2370 cpu_to_le16(IPOPT_IPV4_TOS_EN);
2371 else
2372 init_fw_cb->ipv4_ip_opts &=
2373 cpu_to_le16(~IPOPT_IPV4_TOS_EN);
2374 break;
2375 case ISCSI_NET_PARAM_IPV4_TOS:
2376 if (iface_param->iface_num & 0x1)
2377 break;
2378 init_fw_cb->ipv4_tos = iface_param->value[0];
2379 break;
2380 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN:
2381 if (iface_param->iface_num & 0x1)
2382 break;
2383 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2384 init_fw_cb->ipv4_ip_opts |=
2385 cpu_to_le16(IPOPT_GRAT_ARP_EN);
2386 else
2387 init_fw_cb->ipv4_ip_opts &=
2388 cpu_to_le16(~IPOPT_GRAT_ARP_EN);
2389 break;
2390 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN:
2391 if (iface_param->iface_num & 0x1)
2392 break;
2393 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2394 init_fw_cb->ipv4_ip_opts |=
2395 cpu_to_le16(IPOPT_ALT_CID_EN);
2396 else
2397 init_fw_cb->ipv4_ip_opts &=
2398 cpu_to_le16(~IPOPT_ALT_CID_EN);
2399 break;
2400 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID:
2401 if (iface_param->iface_num & 0x1)
2402 break;
2403 memcpy(init_fw_cb->ipv4_dhcp_alt_cid, iface_param->value,
2404 (sizeof(init_fw_cb->ipv4_dhcp_alt_cid) - 1));
2405 init_fw_cb->ipv4_dhcp_alt_cid_len =
2406 strlen(init_fw_cb->ipv4_dhcp_alt_cid);
2407 break;
2408 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN:
2409 if (iface_param->iface_num & 0x1)
2410 break;
2411 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2412 init_fw_cb->ipv4_ip_opts |=
2413 cpu_to_le16(IPOPT_REQ_VID_EN);
2414 else
2415 init_fw_cb->ipv4_ip_opts &=
2416 cpu_to_le16(~IPOPT_REQ_VID_EN);
2417 break;
2418 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN:
2419 if (iface_param->iface_num & 0x1)
2420 break;
2421 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2422 init_fw_cb->ipv4_ip_opts |=
2423 cpu_to_le16(IPOPT_USE_VID_EN);
2424 else
2425 init_fw_cb->ipv4_ip_opts &=
2426 cpu_to_le16(~IPOPT_USE_VID_EN);
2427 break;
2428 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID:
2429 if (iface_param->iface_num & 0x1)
2430 break;
2431 memcpy(init_fw_cb->ipv4_dhcp_vid, iface_param->value,
2432 (sizeof(init_fw_cb->ipv4_dhcp_vid) - 1));
2433 init_fw_cb->ipv4_dhcp_vid_len =
2434 strlen(init_fw_cb->ipv4_dhcp_vid);
2435 break;
2436 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN:
2437 if (iface_param->iface_num & 0x1)
2438 break;
2439 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2440 init_fw_cb->ipv4_ip_opts |=
2441 cpu_to_le16(IPOPT_LEARN_IQN_EN);
2442 else
2443 init_fw_cb->ipv4_ip_opts &=
2444 cpu_to_le16(~IPOPT_LEARN_IQN_EN);
2445 break;
2446 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE:
2447 if (iface_param->iface_num & 0x1)
2448 break;
2449 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2450 init_fw_cb->ipv4_ip_opts |=
2451 cpu_to_le16(IPOPT_FRAGMENTATION_DISABLE);
2452 else
2453 init_fw_cb->ipv4_ip_opts &=
2454 cpu_to_le16(~IPOPT_FRAGMENTATION_DISABLE);
2455 break;
2456 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN:
2457 if (iface_param->iface_num & 0x1)
2458 break;
2459 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2460 init_fw_cb->ipv4_ip_opts |=
2461 cpu_to_le16(IPOPT_IN_FORWARD_EN);
2462 else
2463 init_fw_cb->ipv4_ip_opts &=
2464 cpu_to_le16(~IPOPT_IN_FORWARD_EN);
2465 break;
2466 case ISCSI_NET_PARAM_REDIRECT_EN:
2467 if (iface_param->iface_num & 0x1)
2468 break;
2469 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2470 init_fw_cb->ipv4_ip_opts |=
2471 cpu_to_le16(IPOPT_ARP_REDIRECT_EN);
2472 else
2473 init_fw_cb->ipv4_ip_opts &=
2474 cpu_to_le16(~IPOPT_ARP_REDIRECT_EN);
2475 break;
2476 case ISCSI_NET_PARAM_IPV4_TTL:
2477 if (iface_param->iface_num & 0x1)
2478 break;
2479 init_fw_cb->ipv4_ttl = iface_param->value[0];
2480 break;
2481 default:
2482 ql4_printk(KERN_ERR, ha, "Unknown IPv4 param = %d\n",
2483 iface_param->param);
2484 break;
2485 }
2486 }
2487
2488 static void qla4xxx_set_iscsi_param(struct scsi_qla_host *ha,
2489 struct iscsi_iface_param_info *iface_param,
2490 struct addr_ctrl_blk *init_fw_cb)
2491 {
2492 switch (iface_param->param) {
2493 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO:
2494 if (iface_param->iface_num & 0x1)
2495 break;
2496 init_fw_cb->def_timeout =
2497 cpu_to_le16(*(uint16_t *)iface_param->value);
2498 break;
2499 case ISCSI_IFACE_PARAM_HDRDGST_EN:
2500 if (iface_param->iface_num & 0x1)
2501 break;
2502 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2503 init_fw_cb->iscsi_opts |=
2504 cpu_to_le16(ISCSIOPTS_HEADER_DIGEST_EN);
2505 else
2506 init_fw_cb->iscsi_opts &=
2507 cpu_to_le16(~ISCSIOPTS_HEADER_DIGEST_EN);
2508 break;
2509 case ISCSI_IFACE_PARAM_DATADGST_EN:
2510 if (iface_param->iface_num & 0x1)
2511 break;
2512 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2513 init_fw_cb->iscsi_opts |=
2514 cpu_to_le16(ISCSIOPTS_DATA_DIGEST_EN);
2515 else
2516 init_fw_cb->iscsi_opts &=
2517 cpu_to_le16(~ISCSIOPTS_DATA_DIGEST_EN);
2518 break;
2519 case ISCSI_IFACE_PARAM_IMM_DATA_EN:
2520 if (iface_param->iface_num & 0x1)
2521 break;
2522 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2523 init_fw_cb->iscsi_opts |=
2524 cpu_to_le16(ISCSIOPTS_IMMEDIATE_DATA_EN);
2525 else
2526 init_fw_cb->iscsi_opts &=
2527 cpu_to_le16(~ISCSIOPTS_IMMEDIATE_DATA_EN);
2528 break;
2529 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN:
2530 if (iface_param->iface_num & 0x1)
2531 break;
2532 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2533 init_fw_cb->iscsi_opts |=
2534 cpu_to_le16(ISCSIOPTS_INITIAL_R2T_EN);
2535 else
2536 init_fw_cb->iscsi_opts &=
2537 cpu_to_le16(~ISCSIOPTS_INITIAL_R2T_EN);
2538 break;
2539 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN:
2540 if (iface_param->iface_num & 0x1)
2541 break;
2542 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2543 init_fw_cb->iscsi_opts |=
2544 cpu_to_le16(ISCSIOPTS_DATA_SEQ_INORDER_EN);
2545 else
2546 init_fw_cb->iscsi_opts &=
2547 cpu_to_le16(~ISCSIOPTS_DATA_SEQ_INORDER_EN);
2548 break;
2549 case ISCSI_IFACE_PARAM_PDU_INORDER_EN:
2550 if (iface_param->iface_num & 0x1)
2551 break;
2552 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2553 init_fw_cb->iscsi_opts |=
2554 cpu_to_le16(ISCSIOPTS_DATA_PDU_INORDER_EN);
2555 else
2556 init_fw_cb->iscsi_opts &=
2557 cpu_to_le16(~ISCSIOPTS_DATA_PDU_INORDER_EN);
2558 break;
2559 case ISCSI_IFACE_PARAM_ERL:
2560 if (iface_param->iface_num & 0x1)
2561 break;
2562 init_fw_cb->iscsi_opts &= cpu_to_le16(~ISCSIOPTS_ERL);
2563 init_fw_cb->iscsi_opts |= cpu_to_le16(iface_param->value[0] &
2564 ISCSIOPTS_ERL);
2565 break;
2566 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH:
2567 if (iface_param->iface_num & 0x1)
2568 break;
2569 init_fw_cb->iscsi_max_pdu_size =
2570 cpu_to_le32(*(uint32_t *)iface_param->value) /
2571 BYTE_UNITS;
2572 break;
2573 case ISCSI_IFACE_PARAM_FIRST_BURST:
2574 if (iface_param->iface_num & 0x1)
2575 break;
2576 init_fw_cb->iscsi_fburst_len =
2577 cpu_to_le32(*(uint32_t *)iface_param->value) /
2578 BYTE_UNITS;
2579 break;
2580 case ISCSI_IFACE_PARAM_MAX_R2T:
2581 if (iface_param->iface_num & 0x1)
2582 break;
2583 init_fw_cb->iscsi_max_outstnd_r2t =
2584 cpu_to_le16(*(uint16_t *)iface_param->value);
2585 break;
2586 case ISCSI_IFACE_PARAM_MAX_BURST:
2587 if (iface_param->iface_num & 0x1)
2588 break;
2589 init_fw_cb->iscsi_max_burst_len =
2590 cpu_to_le32(*(uint32_t *)iface_param->value) /
2591 BYTE_UNITS;
2592 break;
2593 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN:
2594 if (iface_param->iface_num & 0x1)
2595 break;
2596 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2597 init_fw_cb->iscsi_opts |=
2598 cpu_to_le16(ISCSIOPTS_CHAP_AUTH_EN);
2599 else
2600 init_fw_cb->iscsi_opts &=
2601 cpu_to_le16(~ISCSIOPTS_CHAP_AUTH_EN);
2602 break;
2603 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN:
2604 if (iface_param->iface_num & 0x1)
2605 break;
2606 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2607 init_fw_cb->iscsi_opts |=
2608 cpu_to_le16(ISCSIOPTS_BIDI_CHAP_EN);
2609 else
2610 init_fw_cb->iscsi_opts &=
2611 cpu_to_le16(~ISCSIOPTS_BIDI_CHAP_EN);
2612 break;
2613 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL:
2614 if (iface_param->iface_num & 0x1)
2615 break;
2616 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2617 init_fw_cb->iscsi_opts |=
2618 cpu_to_le16(ISCSIOPTS_DISCOVERY_AUTH_EN);
2619 else
2620 init_fw_cb->iscsi_opts &=
2621 cpu_to_le16(~ISCSIOPTS_DISCOVERY_AUTH_EN);
2622 break;
2623 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN:
2624 if (iface_param->iface_num & 0x1)
2625 break;
2626 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2627 init_fw_cb->iscsi_opts |=
2628 cpu_to_le16(ISCSIOPTS_DISCOVERY_LOGOUT_EN);
2629 else
2630 init_fw_cb->iscsi_opts &=
2631 cpu_to_le16(~ISCSIOPTS_DISCOVERY_LOGOUT_EN);
2632 break;
2633 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN:
2634 if (iface_param->iface_num & 0x1)
2635 break;
2636 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2637 init_fw_cb->iscsi_opts |=
2638 cpu_to_le16(ISCSIOPTS_STRICT_LOGIN_COMP_EN);
2639 else
2640 init_fw_cb->iscsi_opts &=
2641 cpu_to_le16(~ISCSIOPTS_STRICT_LOGIN_COMP_EN);
2642 break;
2643 default:
2644 ql4_printk(KERN_ERR, ha, "Unknown iscsi param = %d\n",
2645 iface_param->param);
2646 break;
2647 }
2648 }
2649
2650 static void
2651 qla4xxx_initcb_to_acb(struct addr_ctrl_blk *init_fw_cb)
2652 {
2653 struct addr_ctrl_blk_def *acb;
2654 acb = (struct addr_ctrl_blk_def *)init_fw_cb;
2655 memset(acb->reserved1, 0, sizeof(acb->reserved1));
2656 memset(acb->reserved2, 0, sizeof(acb->reserved2));
2657 memset(acb->reserved3, 0, sizeof(acb->reserved3));
2658 memset(acb->reserved4, 0, sizeof(acb->reserved4));
2659 memset(acb->reserved5, 0, sizeof(acb->reserved5));
2660 memset(acb->reserved6, 0, sizeof(acb->reserved6));
2661 memset(acb->reserved7, 0, sizeof(acb->reserved7));
2662 memset(acb->reserved8, 0, sizeof(acb->reserved8));
2663 memset(acb->reserved9, 0, sizeof(acb->reserved9));
2664 memset(acb->reserved10, 0, sizeof(acb->reserved10));
2665 memset(acb->reserved11, 0, sizeof(acb->reserved11));
2666 memset(acb->reserved12, 0, sizeof(acb->reserved12));
2667 memset(acb->reserved13, 0, sizeof(acb->reserved13));
2668 memset(acb->reserved14, 0, sizeof(acb->reserved14));
2669 memset(acb->reserved15, 0, sizeof(acb->reserved15));
2670 }
2671
2672 static int
2673 qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data, uint32_t len)
2674 {
2675 struct scsi_qla_host *ha = to_qla_host(shost);
2676 int rval = 0;
2677 struct iscsi_iface_param_info *iface_param = NULL;
2678 struct addr_ctrl_blk *init_fw_cb = NULL;
2679 dma_addr_t init_fw_cb_dma;
2680 uint32_t mbox_cmd[MBOX_REG_COUNT];
2681 uint32_t mbox_sts[MBOX_REG_COUNT];
2682 uint32_t rem = len;
2683 struct nlattr *attr;
2684
2685 init_fw_cb = dma_alloc_coherent(&ha->pdev->dev,
2686 sizeof(struct addr_ctrl_blk),
2687 &init_fw_cb_dma, GFP_KERNEL);
2688 if (!init_fw_cb) {
2689 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc init_cb\n",
2690 __func__);
2691 return -ENOMEM;
2692 }
2693
2694 memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk));
2695 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
2696 memset(&mbox_sts, 0, sizeof(mbox_sts));
2697
2698 if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma)) {
2699 ql4_printk(KERN_ERR, ha, "%s: get ifcb failed\n", __func__);
2700 rval = -EIO;
2701 goto exit_init_fw_cb;
2702 }
2703
2704 nla_for_each_attr(attr, data, len, rem) {
2705 iface_param = nla_data(attr);
2706
2707 if (iface_param->param_type == ISCSI_NET_PARAM) {
2708 switch (iface_param->iface_type) {
2709 case ISCSI_IFACE_TYPE_IPV4:
2710 switch (iface_param->iface_num) {
2711 case 0:
2712 qla4xxx_set_ipv4(ha, iface_param,
2713 init_fw_cb);
2714 break;
2715 default:
2716 /* Cannot have more than one IPv4 interface */
2717 ql4_printk(KERN_ERR, ha,
2718 "Invalid IPv4 iface number = %d\n",
2719 iface_param->iface_num);
2720 break;
2721 }
2722 break;
2723 case ISCSI_IFACE_TYPE_IPV6:
2724 switch (iface_param->iface_num) {
2725 case 0:
2726 case 1:
2727 qla4xxx_set_ipv6(ha, iface_param,
2728 init_fw_cb);
2729 break;
2730 default:
2731 /* Cannot have more than two IPv6 interface */
2732 ql4_printk(KERN_ERR, ha,
2733 "Invalid IPv6 iface number = %d\n",
2734 iface_param->iface_num);
2735 break;
2736 }
2737 break;
2738 default:
2739 ql4_printk(KERN_ERR, ha,
2740 "Invalid iface type\n");
2741 break;
2742 }
2743 } else if (iface_param->param_type == ISCSI_IFACE_PARAM) {
2744 qla4xxx_set_iscsi_param(ha, iface_param,
2745 init_fw_cb);
2746 } else {
2747 continue;
2748 }
2749 }
2750
2751 init_fw_cb->cookie = cpu_to_le32(0x11BEAD5A);
2752
2753 rval = qla4xxx_set_flash(ha, init_fw_cb_dma, FLASH_SEGMENT_IFCB,
2754 sizeof(struct addr_ctrl_blk),
2755 FLASH_OPT_RMW_COMMIT);
2756 if (rval != QLA_SUCCESS) {
2757 ql4_printk(KERN_ERR, ha, "%s: set flash mbx failed\n",
2758 __func__);
2759 rval = -EIO;
2760 goto exit_init_fw_cb;
2761 }
2762
2763 rval = qla4xxx_disable_acb(ha);
2764 if (rval != QLA_SUCCESS) {
2765 ql4_printk(KERN_ERR, ha, "%s: disable acb mbx failed\n",
2766 __func__);
2767 rval = -EIO;
2768 goto exit_init_fw_cb;
2769 }
2770
2771 wait_for_completion_timeout(&ha->disable_acb_comp,
2772 DISABLE_ACB_TOV * HZ);
2773
2774 qla4xxx_initcb_to_acb(init_fw_cb);
2775
2776 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma);
2777 if (rval != QLA_SUCCESS) {
2778 ql4_printk(KERN_ERR, ha, "%s: set acb mbx failed\n",
2779 __func__);
2780 rval = -EIO;
2781 goto exit_init_fw_cb;
2782 }
2783
2784 memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk));
2785 qla4xxx_update_local_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb,
2786 init_fw_cb_dma);
2787
2788 exit_init_fw_cb:
2789 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk),
2790 init_fw_cb, init_fw_cb_dma);
2791
2792 return rval;
2793 }
2794
2795 static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess,
2796 enum iscsi_param param, char *buf)
2797 {
2798 struct iscsi_session *sess = cls_sess->dd_data;
2799 struct ddb_entry *ddb_entry = sess->dd_data;
2800 struct scsi_qla_host *ha = ddb_entry->ha;
2801 struct iscsi_cls_conn *cls_conn = ddb_entry->conn;
2802 struct ql4_chap_table chap_tbl;
2803 int rval, len;
2804 uint16_t idx;
2805
2806 memset(&chap_tbl, 0, sizeof(chap_tbl));
2807 switch (param) {
2808 case ISCSI_PARAM_CHAP_IN_IDX:
2809 rval = qla4xxx_get_chap_index(ha, sess->username_in,
2810 sess->password_in, BIDI_CHAP,
2811 &idx);
2812 if (rval)
2813 len = sprintf(buf, "\n");
2814 else
2815 len = sprintf(buf, "%hu\n", idx);
2816 break;
2817 case ISCSI_PARAM_CHAP_OUT_IDX:
2818 if (ddb_entry->ddb_type == FLASH_DDB) {
2819 if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) {
2820 idx = ddb_entry->chap_tbl_idx;
2821 rval = QLA_SUCCESS;
2822 } else {
2823 rval = QLA_ERROR;
2824 }
2825 } else {
2826 rval = qla4xxx_get_chap_index(ha, sess->username,
2827 sess->password,
2828 LOCAL_CHAP, &idx);
2829 }
2830 if (rval)
2831 len = sprintf(buf, "\n");
2832 else
2833 len = sprintf(buf, "%hu\n", idx);
2834 break;
2835 case ISCSI_PARAM_USERNAME:
2836 case ISCSI_PARAM_PASSWORD:
2837 /* First, populate session username and password for FLASH DDB,
2838 * if not already done. This happens when session login fails
2839 * for a FLASH DDB.
2840 */
2841 if (ddb_entry->ddb_type == FLASH_DDB &&
2842 ddb_entry->chap_tbl_idx != INVALID_ENTRY &&
2843 !sess->username && !sess->password) {
2844 idx = ddb_entry->chap_tbl_idx;
2845 rval = qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name,
2846 chap_tbl.secret,
2847 idx);
2848 if (!rval) {
2849 iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME,
2850 (char *)chap_tbl.name,
2851 strlen((char *)chap_tbl.name));
2852 iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD,
2853 (char *)chap_tbl.secret,
2854 chap_tbl.secret_len);
2855 }
2856 }
2857 /* allow fall-through */
2858 default:
2859 return iscsi_session_get_param(cls_sess, param, buf);
2860 }
2861
2862 return len;
2863 }
2864
2865 static int qla4xxx_conn_get_param(struct iscsi_cls_conn *cls_conn,
2866 enum iscsi_param param, char *buf)
2867 {
2868 struct iscsi_conn *conn;
2869 struct qla_conn *qla_conn;
2870 struct sockaddr *dst_addr;
2871 int len = 0;
2872
2873 conn = cls_conn->dd_data;
2874 qla_conn = conn->dd_data;
2875 dst_addr = (struct sockaddr *)&qla_conn->qla_ep->dst_addr;
2876
2877 switch (param) {
2878 case ISCSI_PARAM_CONN_PORT:
2879 case ISCSI_PARAM_CONN_ADDRESS:
2880 return iscsi_conn_get_addr_param((struct sockaddr_storage *)
2881 dst_addr, param, buf);
2882 default:
2883 return iscsi_conn_get_param(cls_conn, param, buf);
2884 }
2885
2886 return len;
2887
2888 }
2889
2890 int qla4xxx_get_ddb_index(struct scsi_qla_host *ha, uint16_t *ddb_index)
2891 {
2892 uint32_t mbx_sts = 0;
2893 uint16_t tmp_ddb_index;
2894 int ret;
2895
2896 get_ddb_index:
2897 tmp_ddb_index = find_first_zero_bit(ha->ddb_idx_map, MAX_DDB_ENTRIES);
2898
2899 if (tmp_ddb_index >= MAX_DDB_ENTRIES) {
2900 DEBUG2(ql4_printk(KERN_INFO, ha,
2901 "Free DDB index not available\n"));
2902 ret = QLA_ERROR;
2903 goto exit_get_ddb_index;
2904 }
2905
2906 if (test_and_set_bit(tmp_ddb_index, ha->ddb_idx_map))
2907 goto get_ddb_index;
2908
2909 DEBUG2(ql4_printk(KERN_INFO, ha,
2910 "Found a free DDB index at %d\n", tmp_ddb_index));
2911 ret = qla4xxx_req_ddb_entry(ha, tmp_ddb_index, &mbx_sts);
2912 if (ret == QLA_ERROR) {
2913 if (mbx_sts == MBOX_STS_COMMAND_ERROR) {
2914 ql4_printk(KERN_INFO, ha,
2915 "DDB index = %d not available trying next\n",
2916 tmp_ddb_index);
2917 goto get_ddb_index;
2918 }
2919 DEBUG2(ql4_printk(KERN_INFO, ha,
2920 "Free FW DDB not available\n"));
2921 }
2922
2923 *ddb_index = tmp_ddb_index;
2924
2925 exit_get_ddb_index:
2926 return ret;
2927 }
2928
2929 static int qla4xxx_match_ipaddress(struct scsi_qla_host *ha,
2930 struct ddb_entry *ddb_entry,
2931 char *existing_ipaddr,
2932 char *user_ipaddr)
2933 {
2934 uint8_t dst_ipaddr[IPv6_ADDR_LEN];
2935 char formatted_ipaddr[DDB_IPADDR_LEN];
2936 int status = QLA_SUCCESS, ret = 0;
2937
2938 if (ddb_entry->fw_ddb_entry.options & DDB_OPT_IPV6_DEVICE) {
2939 ret = in6_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr,
2940 '\0', NULL);
2941 if (ret == 0) {
2942 status = QLA_ERROR;
2943 goto out_match;
2944 }
2945 ret = sprintf(formatted_ipaddr, "%pI6", dst_ipaddr);
2946 } else {
2947 ret = in4_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr,
2948 '\0', NULL);
2949 if (ret == 0) {
2950 status = QLA_ERROR;
2951 goto out_match;
2952 }
2953 ret = sprintf(formatted_ipaddr, "%pI4", dst_ipaddr);
2954 }
2955
2956 if (strcmp(existing_ipaddr, formatted_ipaddr))
2957 status = QLA_ERROR;
2958
2959 out_match:
2960 return status;
2961 }
2962
2963 static int qla4xxx_match_fwdb_session(struct scsi_qla_host *ha,
2964 struct iscsi_cls_conn *cls_conn)
2965 {
2966 int idx = 0, max_ddbs, rval;
2967 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
2968 struct iscsi_session *sess, *existing_sess;
2969 struct iscsi_conn *conn, *existing_conn;
2970 struct ddb_entry *ddb_entry;
2971
2972 sess = cls_sess->dd_data;
2973 conn = cls_conn->dd_data;
2974
2975 if (sess->targetname == NULL ||
2976 conn->persistent_address == NULL ||
2977 conn->persistent_port == 0)
2978 return QLA_ERROR;
2979
2980 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
2981 MAX_DEV_DB_ENTRIES;
2982
2983 for (idx = 0; idx < max_ddbs; idx++) {
2984 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
2985 if (ddb_entry == NULL)
2986 continue;
2987
2988 if (ddb_entry->ddb_type != FLASH_DDB)
2989 continue;
2990
2991 existing_sess = ddb_entry->sess->dd_data;
2992 existing_conn = ddb_entry->conn->dd_data;
2993
2994 if (existing_sess->targetname == NULL ||
2995 existing_conn->persistent_address == NULL ||
2996 existing_conn->persistent_port == 0)
2997 continue;
2998
2999 DEBUG2(ql4_printk(KERN_INFO, ha,
3000 "IQN = %s User IQN = %s\n",
3001 existing_sess->targetname,
3002 sess->targetname));
3003
3004 DEBUG2(ql4_printk(KERN_INFO, ha,
3005 "IP = %s User IP = %s\n",
3006 existing_conn->persistent_address,
3007 conn->persistent_address));
3008
3009 DEBUG2(ql4_printk(KERN_INFO, ha,
3010 "Port = %d User Port = %d\n",
3011 existing_conn->persistent_port,
3012 conn->persistent_port));
3013
3014 if (strcmp(existing_sess->targetname, sess->targetname))
3015 continue;
3016 rval = qla4xxx_match_ipaddress(ha, ddb_entry,
3017 existing_conn->persistent_address,
3018 conn->persistent_address);
3019 if (rval == QLA_ERROR)
3020 continue;
3021 if (existing_conn->persistent_port != conn->persistent_port)
3022 continue;
3023 break;
3024 }
3025
3026 if (idx == max_ddbs)
3027 return QLA_ERROR;
3028
3029 DEBUG2(ql4_printk(KERN_INFO, ha,
3030 "Match found in fwdb sessions\n"));
3031 return QLA_SUCCESS;
3032 }
3033
3034 static struct iscsi_cls_session *
3035 qla4xxx_session_create(struct iscsi_endpoint *ep,
3036 uint16_t cmds_max, uint16_t qdepth,
3037 uint32_t initial_cmdsn)
3038 {
3039 struct iscsi_cls_session *cls_sess;
3040 struct scsi_qla_host *ha;
3041 struct qla_endpoint *qla_ep;
3042 struct ddb_entry *ddb_entry;
3043 uint16_t ddb_index;
3044 struct iscsi_session *sess;
3045 struct sockaddr *dst_addr;
3046 int ret;
3047
3048 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
3049 if (!ep) {
3050 printk(KERN_ERR "qla4xxx: missing ep.\n");
3051 return NULL;
3052 }
3053
3054 qla_ep = ep->dd_data;
3055 dst_addr = (struct sockaddr *)&qla_ep->dst_addr;
3056 ha = to_qla_host(qla_ep->host);
3057
3058 ret = qla4xxx_get_ddb_index(ha, &ddb_index);
3059 if (ret == QLA_ERROR)
3060 return NULL;
3061
3062 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, qla_ep->host,
3063 cmds_max, sizeof(struct ddb_entry),
3064 sizeof(struct ql4_task_data),
3065 initial_cmdsn, ddb_index);
3066 if (!cls_sess)
3067 return NULL;
3068
3069 sess = cls_sess->dd_data;
3070 ddb_entry = sess->dd_data;
3071 ddb_entry->fw_ddb_index = ddb_index;
3072 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE;
3073 ddb_entry->ha = ha;
3074 ddb_entry->sess = cls_sess;
3075 ddb_entry->unblock_sess = qla4xxx_unblock_ddb;
3076 ddb_entry->ddb_change = qla4xxx_ddb_change;
3077 cls_sess->recovery_tmo = ql4xsess_recovery_tmo;
3078 ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry;
3079 ha->tot_ddbs++;
3080
3081 return cls_sess;
3082 }
3083
3084 static void qla4xxx_session_destroy(struct iscsi_cls_session *cls_sess)
3085 {
3086 struct iscsi_session *sess;
3087 struct ddb_entry *ddb_entry;
3088 struct scsi_qla_host *ha;
3089 unsigned long flags, wtime;
3090 struct dev_db_entry *fw_ddb_entry = NULL;
3091 dma_addr_t fw_ddb_entry_dma;
3092 uint32_t ddb_state;
3093 int ret;
3094
3095 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
3096 sess = cls_sess->dd_data;
3097 ddb_entry = sess->dd_data;
3098 ha = ddb_entry->ha;
3099
3100 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3101 &fw_ddb_entry_dma, GFP_KERNEL);
3102 if (!fw_ddb_entry) {
3103 ql4_printk(KERN_ERR, ha,
3104 "%s: Unable to allocate dma buffer\n", __func__);
3105 goto destroy_session;
3106 }
3107
3108 wtime = jiffies + (HZ * LOGOUT_TOV);
3109 do {
3110 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
3111 fw_ddb_entry, fw_ddb_entry_dma,
3112 NULL, NULL, &ddb_state, NULL,
3113 NULL, NULL);
3114 if (ret == QLA_ERROR)
3115 goto destroy_session;
3116
3117 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) ||
3118 (ddb_state == DDB_DS_SESSION_FAILED))
3119 goto destroy_session;
3120
3121 schedule_timeout_uninterruptible(HZ);
3122 } while ((time_after(wtime, jiffies)));
3123
3124 destroy_session:
3125 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
3126
3127 spin_lock_irqsave(&ha->hardware_lock, flags);
3128 qla4xxx_free_ddb(ha, ddb_entry);
3129 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3130
3131 iscsi_session_teardown(cls_sess);
3132
3133 if (fw_ddb_entry)
3134 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3135 fw_ddb_entry, fw_ddb_entry_dma);
3136 }
3137
3138 static struct iscsi_cls_conn *
3139 qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx)
3140 {
3141 struct iscsi_cls_conn *cls_conn;
3142 struct iscsi_session *sess;
3143 struct ddb_entry *ddb_entry;
3144
3145 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
3146 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn),
3147 conn_idx);
3148 if (!cls_conn)
3149 return NULL;
3150
3151 sess = cls_sess->dd_data;
3152 ddb_entry = sess->dd_data;
3153 ddb_entry->conn = cls_conn;
3154
3155 return cls_conn;
3156 }
3157
3158 static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session,
3159 struct iscsi_cls_conn *cls_conn,
3160 uint64_t transport_fd, int is_leading)
3161 {
3162 struct iscsi_conn *conn;
3163 struct qla_conn *qla_conn;
3164 struct iscsi_endpoint *ep;
3165
3166 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
3167
3168 if (iscsi_conn_bind(cls_session, cls_conn, is_leading))
3169 return -EINVAL;
3170 ep = iscsi_lookup_endpoint(transport_fd);
3171 conn = cls_conn->dd_data;
3172 qla_conn = conn->dd_data;
3173 qla_conn->qla_ep = ep->dd_data;
3174 return 0;
3175 }
3176
3177 static int qla4xxx_conn_start(struct iscsi_cls_conn *cls_conn)
3178 {
3179 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
3180 struct iscsi_session *sess;
3181 struct ddb_entry *ddb_entry;
3182 struct scsi_qla_host *ha;
3183 struct dev_db_entry *fw_ddb_entry = NULL;
3184 dma_addr_t fw_ddb_entry_dma;
3185 uint32_t mbx_sts = 0;
3186 int ret = 0;
3187 int status = QLA_SUCCESS;
3188
3189 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
3190 sess = cls_sess->dd_data;
3191 ddb_entry = sess->dd_data;
3192 ha = ddb_entry->ha;
3193
3194 /* Check if we have matching FW DDB, if yes then do not
3195 * login to this target. This could cause target to logout previous
3196 * connection
3197 */
3198 ret = qla4xxx_match_fwdb_session(ha, cls_conn);
3199 if (ret == QLA_SUCCESS) {
3200 ql4_printk(KERN_INFO, ha,
3201 "Session already exist in FW.\n");
3202 ret = -EEXIST;
3203 goto exit_conn_start;
3204 }
3205
3206 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3207 &fw_ddb_entry_dma, GFP_KERNEL);
3208 if (!fw_ddb_entry) {
3209 ql4_printk(KERN_ERR, ha,
3210 "%s: Unable to allocate dma buffer\n", __func__);
3211 ret = -ENOMEM;
3212 goto exit_conn_start;
3213 }
3214
3215 ret = qla4xxx_set_param_ddbentry(ha, ddb_entry, cls_conn, &mbx_sts);
3216 if (ret) {
3217 /* If iscsid is stopped and started then no need to do
3218 * set param again since ddb state will be already
3219 * active and FW does not allow set ddb to an
3220 * active session.
3221 */
3222 if (mbx_sts)
3223 if (ddb_entry->fw_ddb_device_state ==
3224 DDB_DS_SESSION_ACTIVE) {
3225 ddb_entry->unblock_sess(ddb_entry->sess);
3226 goto exit_set_param;
3227 }
3228
3229 ql4_printk(KERN_ERR, ha, "%s: Failed set param for index[%d]\n",
3230 __func__, ddb_entry->fw_ddb_index);
3231 goto exit_conn_start;
3232 }
3233
3234 status = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index);
3235 if (status == QLA_ERROR) {
3236 ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__,
3237 sess->targetname);
3238 ret = -EINVAL;
3239 goto exit_conn_start;
3240 }
3241
3242 if (ddb_entry->fw_ddb_device_state == DDB_DS_NO_CONNECTION_ACTIVE)
3243 ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS;
3244
3245 DEBUG2(printk(KERN_INFO "%s: DDB state [%d]\n", __func__,
3246 ddb_entry->fw_ddb_device_state));
3247
3248 exit_set_param:
3249 ret = 0;
3250
3251 exit_conn_start:
3252 if (fw_ddb_entry)
3253 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3254 fw_ddb_entry, fw_ddb_entry_dma);
3255 return ret;
3256 }
3257
3258 static void qla4xxx_conn_destroy(struct iscsi_cls_conn *cls_conn)
3259 {
3260 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
3261 struct iscsi_session *sess;
3262 struct scsi_qla_host *ha;
3263 struct ddb_entry *ddb_entry;
3264 int options;
3265
3266 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
3267 sess = cls_sess->dd_data;
3268 ddb_entry = sess->dd_data;
3269 ha = ddb_entry->ha;
3270
3271 options = LOGOUT_OPTION_CLOSE_SESSION;
3272 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR)
3273 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__);
3274 }
3275
3276 static void qla4xxx_task_work(struct work_struct *wdata)
3277 {
3278 struct ql4_task_data *task_data;
3279 struct scsi_qla_host *ha;
3280 struct passthru_status *sts;
3281 struct iscsi_task *task;
3282 struct iscsi_hdr *hdr;
3283 uint8_t *data;
3284 uint32_t data_len;
3285 struct iscsi_conn *conn;
3286 int hdr_len;
3287 itt_t itt;
3288
3289 task_data = container_of(wdata, struct ql4_task_data, task_work);
3290 ha = task_data->ha;
3291 task = task_data->task;
3292 sts = &task_data->sts;
3293 hdr_len = sizeof(struct iscsi_hdr);
3294
3295 DEBUG3(printk(KERN_INFO "Status returned\n"));
3296 DEBUG3(qla4xxx_dump_buffer(sts, 64));
3297 DEBUG3(printk(KERN_INFO "Response buffer"));
3298 DEBUG3(qla4xxx_dump_buffer(task_data->resp_buffer, 64));
3299
3300 conn = task->conn;
3301
3302 switch (sts->completionStatus) {
3303 case PASSTHRU_STATUS_COMPLETE:
3304 hdr = (struct iscsi_hdr *)task_data->resp_buffer;
3305 /* Assign back the itt in hdr, until we use the PREASSIGN_TAG */
3306 itt = sts->handle;
3307 hdr->itt = itt;
3308 data = task_data->resp_buffer + hdr_len;
3309 data_len = task_data->resp_len - hdr_len;
3310 iscsi_complete_pdu(conn, hdr, data, data_len);
3311 break;
3312 default:
3313 ql4_printk(KERN_ERR, ha, "Passthru failed status = 0x%x\n",
3314 sts->completionStatus);
3315 break;
3316 }
3317 return;
3318 }
3319
3320 static int qla4xxx_alloc_pdu(struct iscsi_task *task, uint8_t opcode)
3321 {
3322 struct ql4_task_data *task_data;
3323 struct iscsi_session *sess;
3324 struct ddb_entry *ddb_entry;
3325 struct scsi_qla_host *ha;
3326 int hdr_len;
3327
3328 sess = task->conn->session;
3329 ddb_entry = sess->dd_data;
3330 ha = ddb_entry->ha;
3331 task_data = task->dd_data;
3332 memset(task_data, 0, sizeof(struct ql4_task_data));
3333
3334 if (task->sc) {
3335 ql4_printk(KERN_INFO, ha,
3336 "%s: SCSI Commands not implemented\n", __func__);
3337 return -EINVAL;
3338 }
3339
3340 hdr_len = sizeof(struct iscsi_hdr);
3341 task_data->ha = ha;
3342 task_data->task = task;
3343
3344 if (task->data_count) {
3345 task_data->data_dma = dma_map_single(&ha->pdev->dev, task->data,
3346 task->data_count,
3347 PCI_DMA_TODEVICE);
3348 }
3349
3350 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n",
3351 __func__, task->conn->max_recv_dlength, hdr_len));
3352
3353 task_data->resp_len = task->conn->max_recv_dlength + hdr_len;
3354 task_data->resp_buffer = dma_alloc_coherent(&ha->pdev->dev,
3355 task_data->resp_len,
3356 &task_data->resp_dma,
3357 GFP_ATOMIC);
3358 if (!task_data->resp_buffer)
3359 goto exit_alloc_pdu;
3360
3361 task_data->req_len = task->data_count + hdr_len;
3362 task_data->req_buffer = dma_alloc_coherent(&ha->pdev->dev,
3363 task_data->req_len,
3364 &task_data->req_dma,
3365 GFP_ATOMIC);
3366 if (!task_data->req_buffer)
3367 goto exit_alloc_pdu;
3368
3369 task->hdr = task_data->req_buffer;
3370
3371 INIT_WORK(&task_data->task_work, qla4xxx_task_work);
3372
3373 return 0;
3374
3375 exit_alloc_pdu:
3376 if (task_data->resp_buffer)
3377 dma_free_coherent(&ha->pdev->dev, task_data->resp_len,
3378 task_data->resp_buffer, task_data->resp_dma);
3379
3380 if (task_data->req_buffer)
3381 dma_free_coherent(&ha->pdev->dev, task_data->req_len,
3382 task_data->req_buffer, task_data->req_dma);
3383 return -ENOMEM;
3384 }
3385
3386 static void qla4xxx_task_cleanup(struct iscsi_task *task)
3387 {
3388 struct ql4_task_data *task_data;
3389 struct iscsi_session *sess;
3390 struct ddb_entry *ddb_entry;
3391 struct scsi_qla_host *ha;
3392 int hdr_len;
3393
3394 hdr_len = sizeof(struct iscsi_hdr);
3395 sess = task->conn->session;
3396 ddb_entry = sess->dd_data;
3397 ha = ddb_entry->ha;
3398 task_data = task->dd_data;
3399
3400 if (task->data_count) {
3401 dma_unmap_single(&ha->pdev->dev, task_data->data_dma,
3402 task->data_count, PCI_DMA_TODEVICE);
3403 }
3404
3405 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n",
3406 __func__, task->conn->max_recv_dlength, hdr_len));
3407
3408 dma_free_coherent(&ha->pdev->dev, task_data->resp_len,
3409 task_data->resp_buffer, task_data->resp_dma);
3410 dma_free_coherent(&ha->pdev->dev, task_data->req_len,
3411 task_data->req_buffer, task_data->req_dma);
3412 return;
3413 }
3414
3415 static int qla4xxx_task_xmit(struct iscsi_task *task)
3416 {
3417 struct scsi_cmnd *sc = task->sc;
3418 struct iscsi_session *sess = task->conn->session;
3419 struct ddb_entry *ddb_entry = sess->dd_data;
3420 struct scsi_qla_host *ha = ddb_entry->ha;
3421
3422 if (!sc)
3423 return qla4xxx_send_passthru0(task);
3424
3425 ql4_printk(KERN_INFO, ha, "%s: scsi cmd xmit not implemented\n",
3426 __func__);
3427 return -ENOSYS;
3428 }
3429
3430 static int qla4xxx_copy_from_fwddb_param(struct iscsi_bus_flash_session *sess,
3431 struct iscsi_bus_flash_conn *conn,
3432 struct dev_db_entry *fw_ddb_entry)
3433 {
3434 unsigned long options = 0;
3435 int rc = 0;
3436
3437 options = le16_to_cpu(fw_ddb_entry->options);
3438 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options);
3439 if (test_bit(OPT_IPV6_DEVICE, &options)) {
3440 rc = iscsi_switch_str_param(&sess->portal_type,
3441 PORTAL_TYPE_IPV6);
3442 if (rc)
3443 goto exit_copy;
3444 } else {
3445 rc = iscsi_switch_str_param(&sess->portal_type,
3446 PORTAL_TYPE_IPV4);
3447 if (rc)
3448 goto exit_copy;
3449 }
3450
3451 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE,
3452 &options);
3453 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options);
3454 sess->entry_state = test_bit(OPT_ENTRY_STATE, &options);
3455
3456 options = le16_to_cpu(fw_ddb_entry->iscsi_options);
3457 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options);
3458 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options);
3459 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options);
3460 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options);
3461 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER,
3462 &options);
3463 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options);
3464 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options);
3465 conn->snack_req_en = test_bit(ISCSIOPT_SNACK_REQ_EN, &options);
3466 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN,
3467 &options);
3468 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options);
3469 sess->discovery_auth_optional =
3470 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options);
3471 if (test_bit(ISCSIOPT_ERL1, &options))
3472 sess->erl |= BIT_1;
3473 if (test_bit(ISCSIOPT_ERL0, &options))
3474 sess->erl |= BIT_0;
3475
3476 options = le16_to_cpu(fw_ddb_entry->tcp_options);
3477 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options);
3478 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options);
3479 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options);
3480 if (test_bit(TCPOPT_TIMER_SCALE3, &options))
3481 conn->tcp_timer_scale |= BIT_3;
3482 if (test_bit(TCPOPT_TIMER_SCALE2, &options))
3483 conn->tcp_timer_scale |= BIT_2;
3484 if (test_bit(TCPOPT_TIMER_SCALE1, &options))
3485 conn->tcp_timer_scale |= BIT_1;
3486
3487 conn->tcp_timer_scale >>= 1;
3488 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options);
3489
3490 options = le16_to_cpu(fw_ddb_entry->ip_options);
3491 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options);
3492
3493 conn->max_recv_dlength = BYTE_UNITS *
3494 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len);
3495 conn->max_xmit_dlength = BYTE_UNITS *
3496 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len);
3497 sess->first_burst = BYTE_UNITS *
3498 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len);
3499 sess->max_burst = BYTE_UNITS *
3500 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len);
3501 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t);
3502 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
3503 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain);
3504 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
3505 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss);
3506 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf;
3507 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf;
3508 conn->ipv6_flow_label = le16_to_cpu(fw_ddb_entry->ipv6_flow_lbl);
3509 conn->keepalive_timeout = le16_to_cpu(fw_ddb_entry->ka_timeout);
3510 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port);
3511 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn);
3512 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn);
3513 sess->discovery_parent_idx = le16_to_cpu(fw_ddb_entry->ddb_link);
3514 sess->discovery_parent_type = le16_to_cpu(fw_ddb_entry->ddb_link);
3515 sess->chap_out_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
3516 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid);
3517
3518 sess->default_taskmgmt_timeout =
3519 le16_to_cpu(fw_ddb_entry->def_timeout);
3520 conn->port = le16_to_cpu(fw_ddb_entry->port);
3521
3522 options = le16_to_cpu(fw_ddb_entry->options);
3523 conn->ipaddress = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL);
3524 if (!conn->ipaddress) {
3525 rc = -ENOMEM;
3526 goto exit_copy;
3527 }
3528
3529 conn->redirect_ipaddr = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL);
3530 if (!conn->redirect_ipaddr) {
3531 rc = -ENOMEM;
3532 goto exit_copy;
3533 }
3534
3535 memcpy(conn->ipaddress, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN);
3536 memcpy(conn->redirect_ipaddr, fw_ddb_entry->tgt_addr, IPv6_ADDR_LEN);
3537
3538 if (test_bit(OPT_IPV6_DEVICE, &options)) {
3539 conn->ipv6_traffic_class = fw_ddb_entry->ipv4_tos;
3540
3541 conn->link_local_ipv6_addr = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL);
3542 if (!conn->link_local_ipv6_addr) {
3543 rc = -ENOMEM;
3544 goto exit_copy;
3545 }
3546
3547 memcpy(conn->link_local_ipv6_addr,
3548 fw_ddb_entry->link_local_ipv6_addr, IPv6_ADDR_LEN);
3549 } else {
3550 conn->ipv4_tos = fw_ddb_entry->ipv4_tos;
3551 }
3552
3553 if (fw_ddb_entry->iscsi_name[0]) {
3554 rc = iscsi_switch_str_param(&sess->targetname,
3555 (char *)fw_ddb_entry->iscsi_name);
3556 if (rc)
3557 goto exit_copy;
3558 }
3559
3560 if (fw_ddb_entry->iscsi_alias[0]) {
3561 rc = iscsi_switch_str_param(&sess->targetalias,
3562 (char *)fw_ddb_entry->iscsi_alias);
3563 if (rc)
3564 goto exit_copy;
3565 }
3566
3567 COPY_ISID(sess->isid, fw_ddb_entry->isid);
3568
3569 exit_copy:
3570 return rc;
3571 }
3572
3573 static int qla4xxx_copy_to_fwddb_param(struct iscsi_bus_flash_session *sess,
3574 struct iscsi_bus_flash_conn *conn,
3575 struct dev_db_entry *fw_ddb_entry)
3576 {
3577 uint16_t options;
3578 int rc = 0;
3579
3580 options = le16_to_cpu(fw_ddb_entry->options);
3581 SET_BITVAL(conn->is_fw_assigned_ipv6, options, BIT_11);
3582 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4))
3583 options |= BIT_8;
3584 else
3585 options &= ~BIT_8;
3586
3587 SET_BITVAL(sess->auto_snd_tgt_disable, options, BIT_6);
3588 SET_BITVAL(sess->discovery_sess, options, BIT_4);
3589 SET_BITVAL(sess->entry_state, options, BIT_3);
3590 fw_ddb_entry->options = cpu_to_le16(options);
3591
3592 options = le16_to_cpu(fw_ddb_entry->iscsi_options);
3593 SET_BITVAL(conn->hdrdgst_en, options, BIT_13);
3594 SET_BITVAL(conn->datadgst_en, options, BIT_12);
3595 SET_BITVAL(sess->imm_data_en, options, BIT_11);
3596 SET_BITVAL(sess->initial_r2t_en, options, BIT_10);
3597 SET_BITVAL(sess->dataseq_inorder_en, options, BIT_9);
3598 SET_BITVAL(sess->pdu_inorder_en, options, BIT_8);
3599 SET_BITVAL(sess->chap_auth_en, options, BIT_7);
3600 SET_BITVAL(conn->snack_req_en, options, BIT_6);
3601 SET_BITVAL(sess->discovery_logout_en, options, BIT_5);
3602 SET_BITVAL(sess->bidi_chap_en, options, BIT_4);
3603 SET_BITVAL(sess->discovery_auth_optional, options, BIT_3);
3604 SET_BITVAL(sess->erl & BIT_1, options, BIT_1);
3605 SET_BITVAL(sess->erl & BIT_0, options, BIT_0);
3606 fw_ddb_entry->iscsi_options = cpu_to_le16(options);
3607
3608 options = le16_to_cpu(fw_ddb_entry->tcp_options);
3609 SET_BITVAL(conn->tcp_timestamp_stat, options, BIT_6);
3610 SET_BITVAL(conn->tcp_nagle_disable, options, BIT_5);
3611 SET_BITVAL(conn->tcp_wsf_disable, options, BIT_4);
3612 SET_BITVAL(conn->tcp_timer_scale & BIT_2, options, BIT_3);
3613 SET_BITVAL(conn->tcp_timer_scale & BIT_1, options, BIT_2);
3614 SET_BITVAL(conn->tcp_timer_scale & BIT_0, options, BIT_1);
3615 SET_BITVAL(conn->tcp_timestamp_en, options, BIT_0);
3616 fw_ddb_entry->tcp_options = cpu_to_le16(options);
3617
3618 options = le16_to_cpu(fw_ddb_entry->ip_options);
3619 SET_BITVAL(conn->fragment_disable, options, BIT_4);
3620 fw_ddb_entry->ip_options = cpu_to_le16(options);
3621
3622 fw_ddb_entry->iscsi_max_outsnd_r2t = cpu_to_le16(sess->max_r2t);
3623 fw_ddb_entry->iscsi_max_rcv_data_seg_len =
3624 cpu_to_le16(conn->max_recv_dlength / BYTE_UNITS);
3625 fw_ddb_entry->iscsi_max_snd_data_seg_len =
3626 cpu_to_le16(conn->max_xmit_dlength / BYTE_UNITS);
3627 fw_ddb_entry->iscsi_first_burst_len =
3628 cpu_to_le16(sess->first_burst / BYTE_UNITS);
3629 fw_ddb_entry->iscsi_max_burst_len = cpu_to_le16(sess->max_burst /
3630 BYTE_UNITS);
3631 fw_ddb_entry->iscsi_def_time2wait = cpu_to_le16(sess->time2wait);
3632 fw_ddb_entry->iscsi_def_time2retain = cpu_to_le16(sess->time2retain);
3633 fw_ddb_entry->tgt_portal_grp = cpu_to_le16(sess->tpgt);
3634 fw_ddb_entry->mss = cpu_to_le16(conn->max_segment_size);
3635 fw_ddb_entry->tcp_xmt_wsf = (uint8_t) cpu_to_le32(conn->tcp_xmit_wsf);
3636 fw_ddb_entry->tcp_rcv_wsf = (uint8_t) cpu_to_le32(conn->tcp_recv_wsf);
3637 fw_ddb_entry->ipv6_flow_lbl = cpu_to_le16(conn->ipv6_flow_label);
3638 fw_ddb_entry->ka_timeout = cpu_to_le16(conn->keepalive_timeout);
3639 fw_ddb_entry->lcl_port = cpu_to_le16(conn->local_port);
3640 fw_ddb_entry->stat_sn = cpu_to_le32(conn->statsn);
3641 fw_ddb_entry->exp_stat_sn = cpu_to_le32(conn->exp_statsn);
3642 fw_ddb_entry->ddb_link = cpu_to_le16(sess->discovery_parent_idx);
3643 fw_ddb_entry->chap_tbl_idx = cpu_to_le16(sess->chap_out_idx);
3644 fw_ddb_entry->tsid = cpu_to_le16(sess->tsid);
3645 fw_ddb_entry->port = cpu_to_le16(conn->port);
3646 fw_ddb_entry->def_timeout =
3647 cpu_to_le16(sess->default_taskmgmt_timeout);
3648
3649 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4))
3650 fw_ddb_entry->ipv4_tos = conn->ipv6_traffic_class;
3651 else
3652 fw_ddb_entry->ipv4_tos = conn->ipv4_tos;
3653
3654 if (conn->ipaddress)
3655 memcpy(fw_ddb_entry->ip_addr, conn->ipaddress,
3656 sizeof(fw_ddb_entry->ip_addr));
3657
3658 if (conn->redirect_ipaddr)
3659 memcpy(fw_ddb_entry->tgt_addr, conn->redirect_ipaddr,
3660 sizeof(fw_ddb_entry->tgt_addr));
3661
3662 if (conn->link_local_ipv6_addr)
3663 memcpy(fw_ddb_entry->link_local_ipv6_addr,
3664 conn->link_local_ipv6_addr,
3665 sizeof(fw_ddb_entry->link_local_ipv6_addr));
3666
3667 if (sess->targetname)
3668 memcpy(fw_ddb_entry->iscsi_name, sess->targetname,
3669 sizeof(fw_ddb_entry->iscsi_name));
3670
3671 if (sess->targetalias)
3672 memcpy(fw_ddb_entry->iscsi_alias, sess->targetalias,
3673 sizeof(fw_ddb_entry->iscsi_alias));
3674
3675 COPY_ISID(fw_ddb_entry->isid, sess->isid);
3676
3677 return rc;
3678 }
3679
3680 static void qla4xxx_copy_to_sess_conn_params(struct iscsi_conn *conn,
3681 struct iscsi_session *sess,
3682 struct dev_db_entry *fw_ddb_entry)
3683 {
3684 unsigned long options = 0;
3685 uint16_t ddb_link;
3686 uint16_t disc_parent;
3687 char ip_addr[DDB_IPADDR_LEN];
3688
3689 options = le16_to_cpu(fw_ddb_entry->options);
3690 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options);
3691 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE,
3692 &options);
3693 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options);
3694
3695 options = le16_to_cpu(fw_ddb_entry->iscsi_options);
3696 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options);
3697 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options);
3698 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options);
3699 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options);
3700 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER,
3701 &options);
3702 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options);
3703 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options);
3704 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN,
3705 &options);
3706 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options);
3707 sess->discovery_auth_optional =
3708 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options);
3709 if (test_bit(ISCSIOPT_ERL1, &options))
3710 sess->erl |= BIT_1;
3711 if (test_bit(ISCSIOPT_ERL0, &options))
3712 sess->erl |= BIT_0;
3713
3714 options = le16_to_cpu(fw_ddb_entry->tcp_options);
3715 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options);
3716 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options);
3717 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options);
3718 if (test_bit(TCPOPT_TIMER_SCALE3, &options))
3719 conn->tcp_timer_scale |= BIT_3;
3720 if (test_bit(TCPOPT_TIMER_SCALE2, &options))
3721 conn->tcp_timer_scale |= BIT_2;
3722 if (test_bit(TCPOPT_TIMER_SCALE1, &options))
3723 conn->tcp_timer_scale |= BIT_1;
3724
3725 conn->tcp_timer_scale >>= 1;
3726 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options);
3727
3728 options = le16_to_cpu(fw_ddb_entry->ip_options);
3729 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options);
3730
3731 conn->max_recv_dlength = BYTE_UNITS *
3732 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len);
3733 conn->max_xmit_dlength = BYTE_UNITS *
3734 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len);
3735 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t);
3736 sess->first_burst = BYTE_UNITS *
3737 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len);
3738 sess->max_burst = BYTE_UNITS *
3739 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len);
3740 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
3741 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain);
3742 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
3743 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss);
3744 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf;
3745 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf;
3746 conn->ipv4_tos = fw_ddb_entry->ipv4_tos;
3747 conn->keepalive_tmo = le16_to_cpu(fw_ddb_entry->ka_timeout);
3748 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port);
3749 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn);
3750 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn);
3751 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid);
3752 COPY_ISID(sess->isid, fw_ddb_entry->isid);
3753
3754 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
3755 if (ddb_link == DDB_ISNS)
3756 disc_parent = ISCSI_DISC_PARENT_ISNS;
3757 else if (ddb_link == DDB_NO_LINK)
3758 disc_parent = ISCSI_DISC_PARENT_UNKNOWN;
3759 else if (ddb_link < MAX_DDB_ENTRIES)
3760 disc_parent = ISCSI_DISC_PARENT_SENDTGT;
3761 else
3762 disc_parent = ISCSI_DISC_PARENT_UNKNOWN;
3763
3764 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_DISCOVERY_PARENT_TYPE,
3765 iscsi_get_discovery_parent_name(disc_parent), 0);
3766
3767 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_TARGET_ALIAS,
3768 (char *)fw_ddb_entry->iscsi_alias, 0);
3769
3770 options = le16_to_cpu(fw_ddb_entry->options);
3771 if (options & DDB_OPT_IPV6_DEVICE) {
3772 memset(ip_addr, 0, sizeof(ip_addr));
3773 sprintf(ip_addr, "%pI6", fw_ddb_entry->link_local_ipv6_addr);
3774 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_LOCAL_IPADDR,
3775 (char *)ip_addr, 0);
3776 }
3777 }
3778
3779 static void qla4xxx_copy_fwddb_param(struct scsi_qla_host *ha,
3780 struct dev_db_entry *fw_ddb_entry,
3781 struct iscsi_cls_session *cls_sess,
3782 struct iscsi_cls_conn *cls_conn)
3783 {
3784 int buflen = 0;
3785 struct iscsi_session *sess;
3786 struct ddb_entry *ddb_entry;
3787 struct ql4_chap_table chap_tbl;
3788 struct iscsi_conn *conn;
3789 char ip_addr[DDB_IPADDR_LEN];
3790 uint16_t options = 0;
3791
3792 sess = cls_sess->dd_data;
3793 ddb_entry = sess->dd_data;
3794 conn = cls_conn->dd_data;
3795 memset(&chap_tbl, 0, sizeof(chap_tbl));
3796
3797 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
3798
3799 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry);
3800
3801 sess->def_taskmgmt_tmo = le16_to_cpu(fw_ddb_entry->def_timeout);
3802 conn->persistent_port = le16_to_cpu(fw_ddb_entry->port);
3803
3804 memset(ip_addr, 0, sizeof(ip_addr));
3805 options = le16_to_cpu(fw_ddb_entry->options);
3806 if (options & DDB_OPT_IPV6_DEVICE) {
3807 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv6", 4);
3808
3809 memset(ip_addr, 0, sizeof(ip_addr));
3810 sprintf(ip_addr, "%pI6", fw_ddb_entry->ip_addr);
3811 } else {
3812 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv4", 4);
3813 sprintf(ip_addr, "%pI4", fw_ddb_entry->ip_addr);
3814 }
3815
3816 iscsi_set_param(cls_conn, ISCSI_PARAM_PERSISTENT_ADDRESS,
3817 (char *)ip_addr, buflen);
3818 iscsi_set_param(cls_conn, ISCSI_PARAM_TARGET_NAME,
3819 (char *)fw_ddb_entry->iscsi_name, buflen);
3820 iscsi_set_param(cls_conn, ISCSI_PARAM_INITIATOR_NAME,
3821 (char *)ha->name_string, buflen);
3822
3823 if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) {
3824 if (!qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name,
3825 chap_tbl.secret,
3826 ddb_entry->chap_tbl_idx)) {
3827 iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME,
3828 (char *)chap_tbl.name,
3829 strlen((char *)chap_tbl.name));
3830 iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD,
3831 (char *)chap_tbl.secret,
3832 chap_tbl.secret_len);
3833 }
3834 }
3835 }
3836
3837 void qla4xxx_update_session_conn_fwddb_param(struct scsi_qla_host *ha,
3838 struct ddb_entry *ddb_entry)
3839 {
3840 struct iscsi_cls_session *cls_sess;
3841 struct iscsi_cls_conn *cls_conn;
3842 uint32_t ddb_state;
3843 dma_addr_t fw_ddb_entry_dma;
3844 struct dev_db_entry *fw_ddb_entry;
3845
3846 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3847 &fw_ddb_entry_dma, GFP_KERNEL);
3848 if (!fw_ddb_entry) {
3849 ql4_printk(KERN_ERR, ha,
3850 "%s: Unable to allocate dma buffer\n", __func__);
3851 goto exit_session_conn_fwddb_param;
3852 }
3853
3854 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry,
3855 fw_ddb_entry_dma, NULL, NULL, &ddb_state,
3856 NULL, NULL, NULL) == QLA_ERROR) {
3857 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
3858 "get_ddb_entry for fw_ddb_index %d\n",
3859 ha->host_no, __func__,
3860 ddb_entry->fw_ddb_index));
3861 goto exit_session_conn_fwddb_param;
3862 }
3863
3864 cls_sess = ddb_entry->sess;
3865
3866 cls_conn = ddb_entry->conn;
3867
3868 /* Update params */
3869 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn);
3870
3871 exit_session_conn_fwddb_param:
3872 if (fw_ddb_entry)
3873 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3874 fw_ddb_entry, fw_ddb_entry_dma);
3875 }
3876
3877 void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha,
3878 struct ddb_entry *ddb_entry)
3879 {
3880 struct iscsi_cls_session *cls_sess;
3881 struct iscsi_cls_conn *cls_conn;
3882 struct iscsi_session *sess;
3883 struct iscsi_conn *conn;
3884 uint32_t ddb_state;
3885 dma_addr_t fw_ddb_entry_dma;
3886 struct dev_db_entry *fw_ddb_entry;
3887
3888 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3889 &fw_ddb_entry_dma, GFP_KERNEL);
3890 if (!fw_ddb_entry) {
3891 ql4_printk(KERN_ERR, ha,
3892 "%s: Unable to allocate dma buffer\n", __func__);
3893 goto exit_session_conn_param;
3894 }
3895
3896 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry,
3897 fw_ddb_entry_dma, NULL, NULL, &ddb_state,
3898 NULL, NULL, NULL) == QLA_ERROR) {
3899 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
3900 "get_ddb_entry for fw_ddb_index %d\n",
3901 ha->host_no, __func__,
3902 ddb_entry->fw_ddb_index));
3903 goto exit_session_conn_param;
3904 }
3905
3906 cls_sess = ddb_entry->sess;
3907 sess = cls_sess->dd_data;
3908
3909 cls_conn = ddb_entry->conn;
3910 conn = cls_conn->dd_data;
3911
3912 /* Update timers after login */
3913 ddb_entry->default_relogin_timeout =
3914 (le16_to_cpu(fw_ddb_entry->def_timeout) > LOGIN_TOV) &&
3915 (le16_to_cpu(fw_ddb_entry->def_timeout) < LOGIN_TOV * 10) ?
3916 le16_to_cpu(fw_ddb_entry->def_timeout) : LOGIN_TOV;
3917 ddb_entry->default_time2wait =
3918 le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
3919
3920 /* Update params */
3921 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
3922 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry);
3923
3924 memcpy(sess->initiatorname, ha->name_string,
3925 min(sizeof(ha->name_string), sizeof(sess->initiatorname)));
3926
3927 exit_session_conn_param:
3928 if (fw_ddb_entry)
3929 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3930 fw_ddb_entry, fw_ddb_entry_dma);
3931 }
3932
3933 /*
3934 * Timer routines
3935 */
3936
3937 static void qla4xxx_start_timer(struct scsi_qla_host *ha, void *func,
3938 unsigned long interval)
3939 {
3940 DEBUG(printk("scsi: %s: Starting timer thread for adapter %d\n",
3941 __func__, ha->host->host_no));
3942 init_timer(&ha->timer);
3943 ha->timer.expires = jiffies + interval * HZ;
3944 ha->timer.data = (unsigned long)ha;
3945 ha->timer.function = (void (*)(unsigned long))func;
3946 add_timer(&ha->timer);
3947 ha->timer_active = 1;
3948 }
3949
3950 static void qla4xxx_stop_timer(struct scsi_qla_host *ha)
3951 {
3952 del_timer_sync(&ha->timer);
3953 ha->timer_active = 0;
3954 }
3955
3956 /***
3957 * qla4xxx_mark_device_missing - blocks the session
3958 * @cls_session: Pointer to the session to be blocked
3959 * @ddb_entry: Pointer to device database entry
3960 *
3961 * This routine marks a device missing and close connection.
3962 **/
3963 void qla4xxx_mark_device_missing(struct iscsi_cls_session *cls_session)
3964 {
3965 iscsi_block_session(cls_session);
3966 }
3967
3968 /**
3969 * qla4xxx_mark_all_devices_missing - mark all devices as missing.
3970 * @ha: Pointer to host adapter structure.
3971 *
3972 * This routine marks a device missing and resets the relogin retry count.
3973 **/
3974 void qla4xxx_mark_all_devices_missing(struct scsi_qla_host *ha)
3975 {
3976 iscsi_host_for_each_session(ha->host, qla4xxx_mark_device_missing);
3977 }
3978
3979 static struct srb* qla4xxx_get_new_srb(struct scsi_qla_host *ha,
3980 struct ddb_entry *ddb_entry,
3981 struct scsi_cmnd *cmd)
3982 {
3983 struct srb *srb;
3984
3985 srb = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
3986 if (!srb)
3987 return srb;
3988
3989 kref_init(&srb->srb_ref);
3990 srb->ha = ha;
3991 srb->ddb = ddb_entry;
3992 srb->cmd = cmd;
3993 srb->flags = 0;
3994 CMD_SP(cmd) = (void *)srb;
3995
3996 return srb;
3997 }
3998
3999 static void qla4xxx_srb_free_dma(struct scsi_qla_host *ha, struct srb *srb)
4000 {
4001 struct scsi_cmnd *cmd = srb->cmd;
4002
4003 if (srb->flags & SRB_DMA_VALID) {
4004 scsi_dma_unmap(cmd);
4005 srb->flags &= ~SRB_DMA_VALID;
4006 }
4007 CMD_SP(cmd) = NULL;
4008 }
4009
4010 void qla4xxx_srb_compl(struct kref *ref)
4011 {
4012 struct srb *srb = container_of(ref, struct srb, srb_ref);
4013 struct scsi_cmnd *cmd = srb->cmd;
4014 struct scsi_qla_host *ha = srb->ha;
4015
4016 qla4xxx_srb_free_dma(ha, srb);
4017
4018 mempool_free(srb, ha->srb_mempool);
4019
4020 cmd->scsi_done(cmd);
4021 }
4022
4023 /**
4024 * qla4xxx_queuecommand - scsi layer issues scsi command to driver.
4025 * @host: scsi host
4026 * @cmd: Pointer to Linux's SCSI command structure
4027 *
4028 * Remarks:
4029 * This routine is invoked by Linux to send a SCSI command to the driver.
4030 * The mid-level driver tries to ensure that queuecommand never gets
4031 * invoked concurrently with itself or the interrupt handler (although
4032 * the interrupt handler may call this routine as part of request-
4033 * completion handling). Unfortunely, it sometimes calls the scheduler
4034 * in interrupt context which is a big NO! NO!.
4035 **/
4036 static int qla4xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
4037 {
4038 struct scsi_qla_host *ha = to_qla_host(host);
4039 struct ddb_entry *ddb_entry = cmd->device->hostdata;
4040 struct iscsi_cls_session *sess = ddb_entry->sess;
4041 struct srb *srb;
4042 int rval;
4043
4044 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
4045 if (test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags))
4046 cmd->result = DID_NO_CONNECT << 16;
4047 else
4048 cmd->result = DID_REQUEUE << 16;
4049 goto qc_fail_command;
4050 }
4051
4052 if (!sess) {
4053 cmd->result = DID_IMM_RETRY << 16;
4054 goto qc_fail_command;
4055 }
4056
4057 rval = iscsi_session_chkready(sess);
4058 if (rval) {
4059 cmd->result = rval;
4060 goto qc_fail_command;
4061 }
4062
4063 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
4064 test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) ||
4065 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
4066 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) ||
4067 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) ||
4068 !test_bit(AF_ONLINE, &ha->flags) ||
4069 !test_bit(AF_LINK_UP, &ha->flags) ||
4070 test_bit(AF_LOOPBACK, &ha->flags) ||
4071 test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags) ||
4072 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags) ||
4073 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))
4074 goto qc_host_busy;
4075
4076 srb = qla4xxx_get_new_srb(ha, ddb_entry, cmd);
4077 if (!srb)
4078 goto qc_host_busy;
4079
4080 rval = qla4xxx_send_command_to_isp(ha, srb);
4081 if (rval != QLA_SUCCESS)
4082 goto qc_host_busy_free_sp;
4083
4084 return 0;
4085
4086 qc_host_busy_free_sp:
4087 qla4xxx_srb_free_dma(ha, srb);
4088 mempool_free(srb, ha->srb_mempool);
4089
4090 qc_host_busy:
4091 return SCSI_MLQUEUE_HOST_BUSY;
4092
4093 qc_fail_command:
4094 cmd->scsi_done(cmd);
4095
4096 return 0;
4097 }
4098
4099 /**
4100 * qla4xxx_mem_free - frees memory allocated to adapter
4101 * @ha: Pointer to host adapter structure.
4102 *
4103 * Frees memory previously allocated by qla4xxx_mem_alloc
4104 **/
4105 static void qla4xxx_mem_free(struct scsi_qla_host *ha)
4106 {
4107 if (ha->queues)
4108 dma_free_coherent(&ha->pdev->dev, ha->queues_len, ha->queues,
4109 ha->queues_dma);
4110
4111 if (ha->fw_dump)
4112 vfree(ha->fw_dump);
4113
4114 ha->queues_len = 0;
4115 ha->queues = NULL;
4116 ha->queues_dma = 0;
4117 ha->request_ring = NULL;
4118 ha->request_dma = 0;
4119 ha->response_ring = NULL;
4120 ha->response_dma = 0;
4121 ha->shadow_regs = NULL;
4122 ha->shadow_regs_dma = 0;
4123 ha->fw_dump = NULL;
4124 ha->fw_dump_size = 0;
4125
4126 /* Free srb pool. */
4127 if (ha->srb_mempool)
4128 mempool_destroy(ha->srb_mempool);
4129
4130 ha->srb_mempool = NULL;
4131
4132 if (ha->chap_dma_pool)
4133 dma_pool_destroy(ha->chap_dma_pool);
4134
4135 if (ha->chap_list)
4136 vfree(ha->chap_list);
4137 ha->chap_list = NULL;
4138
4139 if (ha->fw_ddb_dma_pool)
4140 dma_pool_destroy(ha->fw_ddb_dma_pool);
4141
4142 /* release io space registers */
4143 if (is_qla8022(ha)) {
4144 if (ha->nx_pcibase)
4145 iounmap(
4146 (struct device_reg_82xx __iomem *)ha->nx_pcibase);
4147 } else if (is_qla8032(ha) || is_qla8042(ha)) {
4148 if (ha->nx_pcibase)
4149 iounmap(
4150 (struct device_reg_83xx __iomem *)ha->nx_pcibase);
4151 } else if (ha->reg) {
4152 iounmap(ha->reg);
4153 }
4154
4155 if (ha->reset_tmplt.buff)
4156 vfree(ha->reset_tmplt.buff);
4157
4158 pci_release_regions(ha->pdev);
4159 }
4160
4161 /**
4162 * qla4xxx_mem_alloc - allocates memory for use by adapter.
4163 * @ha: Pointer to host adapter structure
4164 *
4165 * Allocates DMA memory for request and response queues. Also allocates memory
4166 * for srbs.
4167 **/
4168 static int qla4xxx_mem_alloc(struct scsi_qla_host *ha)
4169 {
4170 unsigned long align;
4171
4172 /* Allocate contiguous block of DMA memory for queues. */
4173 ha->queues_len = ((REQUEST_QUEUE_DEPTH * QUEUE_SIZE) +
4174 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE) +
4175 sizeof(struct shadow_regs) +
4176 MEM_ALIGN_VALUE +
4177 (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
4178 ha->queues = dma_alloc_coherent(&ha->pdev->dev, ha->queues_len,
4179 &ha->queues_dma, GFP_KERNEL);
4180 if (ha->queues == NULL) {
4181 ql4_printk(KERN_WARNING, ha,
4182 "Memory Allocation failed - queues.\n");
4183
4184 goto mem_alloc_error_exit;
4185 }
4186 memset(ha->queues, 0, ha->queues_len);
4187
4188 /*
4189 * As per RISC alignment requirements -- the bus-address must be a
4190 * multiple of the request-ring size (in bytes).
4191 */
4192 align = 0;
4193 if ((unsigned long)ha->queues_dma & (MEM_ALIGN_VALUE - 1))
4194 align = MEM_ALIGN_VALUE - ((unsigned long)ha->queues_dma &
4195 (MEM_ALIGN_VALUE - 1));
4196
4197 /* Update request and response queue pointers. */
4198 ha->request_dma = ha->queues_dma + align;
4199 ha->request_ring = (struct queue_entry *) (ha->queues + align);
4200 ha->response_dma = ha->queues_dma + align +
4201 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE);
4202 ha->response_ring = (struct queue_entry *) (ha->queues + align +
4203 (REQUEST_QUEUE_DEPTH *
4204 QUEUE_SIZE));
4205 ha->shadow_regs_dma = ha->queues_dma + align +
4206 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE) +
4207 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE);
4208 ha->shadow_regs = (struct shadow_regs *) (ha->queues + align +
4209 (REQUEST_QUEUE_DEPTH *
4210 QUEUE_SIZE) +
4211 (RESPONSE_QUEUE_DEPTH *
4212 QUEUE_SIZE));
4213
4214 /* Allocate memory for srb pool. */
4215 ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab,
4216 mempool_free_slab, srb_cachep);
4217 if (ha->srb_mempool == NULL) {
4218 ql4_printk(KERN_WARNING, ha,
4219 "Memory Allocation failed - SRB Pool.\n");
4220
4221 goto mem_alloc_error_exit;
4222 }
4223
4224 ha->chap_dma_pool = dma_pool_create("ql4_chap", &ha->pdev->dev,
4225 CHAP_DMA_BLOCK_SIZE, 8, 0);
4226
4227 if (ha->chap_dma_pool == NULL) {
4228 ql4_printk(KERN_WARNING, ha,
4229 "%s: chap_dma_pool allocation failed..\n", __func__);
4230 goto mem_alloc_error_exit;
4231 }
4232
4233 ha->fw_ddb_dma_pool = dma_pool_create("ql4_fw_ddb", &ha->pdev->dev,
4234 DDB_DMA_BLOCK_SIZE, 8, 0);
4235
4236 if (ha->fw_ddb_dma_pool == NULL) {
4237 ql4_printk(KERN_WARNING, ha,
4238 "%s: fw_ddb_dma_pool allocation failed..\n",
4239 __func__);
4240 goto mem_alloc_error_exit;
4241 }
4242
4243 return QLA_SUCCESS;
4244
4245 mem_alloc_error_exit:
4246 qla4xxx_mem_free(ha);
4247 return QLA_ERROR;
4248 }
4249
4250 /**
4251 * qla4_8xxx_check_temp - Check the ISP82XX temperature.
4252 * @ha: adapter block pointer.
4253 *
4254 * Note: The caller should not hold the idc lock.
4255 **/
4256 static int qla4_8xxx_check_temp(struct scsi_qla_host *ha)
4257 {
4258 uint32_t temp, temp_state, temp_val;
4259 int status = QLA_SUCCESS;
4260
4261 temp = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_TEMP_STATE);
4262
4263 temp_state = qla82xx_get_temp_state(temp);
4264 temp_val = qla82xx_get_temp_val(temp);
4265
4266 if (temp_state == QLA82XX_TEMP_PANIC) {
4267 ql4_printk(KERN_WARNING, ha, "Device temperature %d degrees C"
4268 " exceeds maximum allowed. Hardware has been shut"
4269 " down.\n", temp_val);
4270 status = QLA_ERROR;
4271 } else if (temp_state == QLA82XX_TEMP_WARN) {
4272 if (ha->temperature == QLA82XX_TEMP_NORMAL)
4273 ql4_printk(KERN_WARNING, ha, "Device temperature %d"
4274 " degrees C exceeds operating range."
4275 " Immediate action needed.\n", temp_val);
4276 } else {
4277 if (ha->temperature == QLA82XX_TEMP_WARN)
4278 ql4_printk(KERN_INFO, ha, "Device temperature is"
4279 " now %d degrees C in normal range.\n",
4280 temp_val);
4281 }
4282 ha->temperature = temp_state;
4283 return status;
4284 }
4285
4286 /**
4287 * qla4_8xxx_check_fw_alive - Check firmware health
4288 * @ha: Pointer to host adapter structure.
4289 *
4290 * Context: Interrupt
4291 **/
4292 static int qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha)
4293 {
4294 uint32_t fw_heartbeat_counter;
4295 int status = QLA_SUCCESS;
4296
4297 fw_heartbeat_counter = qla4_8xxx_rd_direct(ha,
4298 QLA8XXX_PEG_ALIVE_COUNTER);
4299 /* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */
4300 if (fw_heartbeat_counter == 0xffffffff) {
4301 DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Device in frozen "
4302 "state, QLA82XX_PEG_ALIVE_COUNTER is 0xffffffff\n",
4303 ha->host_no, __func__));
4304 return status;
4305 }
4306
4307 if (ha->fw_heartbeat_counter == fw_heartbeat_counter) {
4308 ha->seconds_since_last_heartbeat++;
4309 /* FW not alive after 2 seconds */
4310 if (ha->seconds_since_last_heartbeat == 2) {
4311 ha->seconds_since_last_heartbeat = 0;
4312 qla4_8xxx_dump_peg_reg(ha);
4313 status = QLA_ERROR;
4314 }
4315 } else
4316 ha->seconds_since_last_heartbeat = 0;
4317
4318 ha->fw_heartbeat_counter = fw_heartbeat_counter;
4319 return status;
4320 }
4321
4322 static void qla4_8xxx_process_fw_error(struct scsi_qla_host *ha)
4323 {
4324 uint32_t halt_status;
4325 int halt_status_unrecoverable = 0;
4326
4327 halt_status = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_HALT_STATUS1);
4328
4329 if (is_qla8022(ha)) {
4330 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
4331 __func__);
4332 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
4333 CRB_NIU_XG_PAUSE_CTL_P0 |
4334 CRB_NIU_XG_PAUSE_CTL_P1);
4335
4336 if (QLA82XX_FWERROR_CODE(halt_status) == 0x67)
4337 ql4_printk(KERN_ERR, ha, "%s: Firmware aborted with error code 0x00006700. Device is being reset\n",
4338 __func__);
4339 if (halt_status & HALT_STATUS_UNRECOVERABLE)
4340 halt_status_unrecoverable = 1;
4341 } else if (is_qla8032(ha) || is_qla8042(ha)) {
4342 if (halt_status & QLA83XX_HALT_STATUS_FW_RESET)
4343 ql4_printk(KERN_ERR, ha, "%s: Firmware error detected device is being reset\n",
4344 __func__);
4345 else if (halt_status & QLA83XX_HALT_STATUS_UNRECOVERABLE)
4346 halt_status_unrecoverable = 1;
4347 }
4348
4349 /*
4350 * Since we cannot change dev_state in interrupt context,
4351 * set appropriate DPC flag then wakeup DPC
4352 */
4353 if (halt_status_unrecoverable) {
4354 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags);
4355 } else {
4356 ql4_printk(KERN_INFO, ha, "%s: detect abort needed!\n",
4357 __func__);
4358 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4359 }
4360 qla4xxx_mailbox_premature_completion(ha);
4361 qla4xxx_wake_dpc(ha);
4362 }
4363
4364 /**
4365 * qla4_8xxx_watchdog - Poll dev state
4366 * @ha: Pointer to host adapter structure.
4367 *
4368 * Context: Interrupt
4369 **/
4370 void qla4_8xxx_watchdog(struct scsi_qla_host *ha)
4371 {
4372 uint32_t dev_state;
4373 uint32_t idc_ctrl;
4374
4375 /* don't poll if reset is going on */
4376 if (!(test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) ||
4377 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
4378 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags))) {
4379 dev_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE);
4380
4381 if (qla4_8xxx_check_temp(ha)) {
4382 if (is_qla8022(ha)) {
4383 ql4_printk(KERN_INFO, ha, "disabling pause transmit on port 0 & 1.\n");
4384 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
4385 CRB_NIU_XG_PAUSE_CTL_P0 |
4386 CRB_NIU_XG_PAUSE_CTL_P1);
4387 }
4388 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags);
4389 qla4xxx_wake_dpc(ha);
4390 } else if (dev_state == QLA8XXX_DEV_NEED_RESET &&
4391 !test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
4392
4393 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED RESET!\n",
4394 __func__);
4395
4396 if (is_qla8032(ha) || is_qla8042(ha)) {
4397 idc_ctrl = qla4_83xx_rd_reg(ha,
4398 QLA83XX_IDC_DRV_CTRL);
4399 if (!(idc_ctrl & GRACEFUL_RESET_BIT1)) {
4400 ql4_printk(KERN_INFO, ha, "%s: Graceful reset bit is not set\n",
4401 __func__);
4402 qla4xxx_mailbox_premature_completion(
4403 ha);
4404 }
4405 }
4406
4407 if ((is_qla8032(ha) || is_qla8042(ha)) ||
4408 (is_qla8022(ha) && !ql4xdontresethba)) {
4409 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4410 qla4xxx_wake_dpc(ha);
4411 }
4412 } else if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT &&
4413 !test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) {
4414 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED QUIES!\n",
4415 __func__);
4416 set_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags);
4417 qla4xxx_wake_dpc(ha);
4418 } else {
4419 /* Check firmware health */
4420 if (qla4_8xxx_check_fw_alive(ha))
4421 qla4_8xxx_process_fw_error(ha);
4422 }
4423 }
4424 }
4425
4426 static void qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)
4427 {
4428 struct iscsi_session *sess;
4429 struct ddb_entry *ddb_entry;
4430 struct scsi_qla_host *ha;
4431
4432 sess = cls_sess->dd_data;
4433 ddb_entry = sess->dd_data;
4434 ha = ddb_entry->ha;
4435
4436 if (!(ddb_entry->ddb_type == FLASH_DDB))
4437 return;
4438
4439 if (adapter_up(ha) && !test_bit(DF_RELOGIN, &ddb_entry->flags) &&
4440 !iscsi_is_session_online(cls_sess)) {
4441 if (atomic_read(&ddb_entry->retry_relogin_timer) !=
4442 INVALID_ENTRY) {
4443 if (atomic_read(&ddb_entry->retry_relogin_timer) ==
4444 0) {
4445 atomic_set(&ddb_entry->retry_relogin_timer,
4446 INVALID_ENTRY);
4447 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
4448 set_bit(DF_RELOGIN, &ddb_entry->flags);
4449 DEBUG2(ql4_printk(KERN_INFO, ha,
4450 "%s: index [%d] login device\n",
4451 __func__, ddb_entry->fw_ddb_index));
4452 } else
4453 atomic_dec(&ddb_entry->retry_relogin_timer);
4454 }
4455 }
4456
4457 /* Wait for relogin to timeout */
4458 if (atomic_read(&ddb_entry->relogin_timer) &&
4459 (atomic_dec_and_test(&ddb_entry->relogin_timer) != 0)) {
4460 /*
4461 * If the relogin times out and the device is
4462 * still NOT ONLINE then try and relogin again.
4463 */
4464 if (!iscsi_is_session_online(cls_sess)) {
4465 /* Reset retry relogin timer */
4466 atomic_inc(&ddb_entry->relogin_retry_count);
4467 DEBUG2(ql4_printk(KERN_INFO, ha,
4468 "%s: index[%d] relogin timed out-retrying"
4469 " relogin (%d), retry (%d)\n", __func__,
4470 ddb_entry->fw_ddb_index,
4471 atomic_read(&ddb_entry->relogin_retry_count),
4472 ddb_entry->default_time2wait + 4));
4473 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
4474 atomic_set(&ddb_entry->retry_relogin_timer,
4475 ddb_entry->default_time2wait + 4);
4476 }
4477 }
4478 }
4479
4480 /**
4481 * qla4xxx_timer - checks every second for work to do.
4482 * @ha: Pointer to host adapter structure.
4483 **/
4484 static void qla4xxx_timer(struct scsi_qla_host *ha)
4485 {
4486 int start_dpc = 0;
4487 uint16_t w;
4488
4489 iscsi_host_for_each_session(ha->host, qla4xxx_check_relogin_flash_ddb);
4490
4491 /* If we are in the middle of AER/EEH processing
4492 * skip any processing and reschedule the timer
4493 */
4494 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
4495 mod_timer(&ha->timer, jiffies + HZ);
4496 return;
4497 }
4498
4499 /* Hardware read to trigger an EEH error during mailbox waits. */
4500 if (!pci_channel_offline(ha->pdev))
4501 pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
4502
4503 if (is_qla80XX(ha))
4504 qla4_8xxx_watchdog(ha);
4505
4506 if (is_qla40XX(ha)) {
4507 /* Check for heartbeat interval. */
4508 if (ha->firmware_options & FWOPT_HEARTBEAT_ENABLE &&
4509 ha->heartbeat_interval != 0) {
4510 ha->seconds_since_last_heartbeat++;
4511 if (ha->seconds_since_last_heartbeat >
4512 ha->heartbeat_interval + 2)
4513 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4514 }
4515 }
4516
4517 /* Process any deferred work. */
4518 if (!list_empty(&ha->work_list))
4519 start_dpc++;
4520
4521 /* Wakeup the dpc routine for this adapter, if needed. */
4522 if (start_dpc ||
4523 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
4524 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags) ||
4525 test_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags) ||
4526 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) ||
4527 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
4528 test_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags) ||
4529 test_bit(DPC_LINK_CHANGED, &ha->dpc_flags) ||
4530 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) ||
4531 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) ||
4532 test_bit(DPC_AEN, &ha->dpc_flags)) {
4533 DEBUG2(printk("scsi%ld: %s: scheduling dpc routine"
4534 " - dpc flags = 0x%lx\n",
4535 ha->host_no, __func__, ha->dpc_flags));
4536 qla4xxx_wake_dpc(ha);
4537 }
4538
4539 /* Reschedule timer thread to call us back in one second */
4540 mod_timer(&ha->timer, jiffies + HZ);
4541
4542 DEBUG2(ha->seconds_since_last_intr++);
4543 }
4544
4545 /**
4546 * qla4xxx_cmd_wait - waits for all outstanding commands to complete
4547 * @ha: Pointer to host adapter structure.
4548 *
4549 * This routine stalls the driver until all outstanding commands are returned.
4550 * Caller must release the Hardware Lock prior to calling this routine.
4551 **/
4552 static int qla4xxx_cmd_wait(struct scsi_qla_host *ha)
4553 {
4554 uint32_t index = 0;
4555 unsigned long flags;
4556 struct scsi_cmnd *cmd;
4557
4558 unsigned long wtime = jiffies + (WAIT_CMD_TOV * HZ);
4559
4560 DEBUG2(ql4_printk(KERN_INFO, ha, "Wait up to %d seconds for cmds to "
4561 "complete\n", WAIT_CMD_TOV));
4562
4563 while (!time_after_eq(jiffies, wtime)) {
4564 spin_lock_irqsave(&ha->hardware_lock, flags);
4565 /* Find a command that hasn't completed. */
4566 for (index = 0; index < ha->host->can_queue; index++) {
4567 cmd = scsi_host_find_tag(ha->host, index);
4568 /*
4569 * We cannot just check if the index is valid,
4570 * becase if we are run from the scsi eh, then
4571 * the scsi/block layer is going to prevent
4572 * the tag from being released.
4573 */
4574 if (cmd != NULL && CMD_SP(cmd))
4575 break;
4576 }
4577 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4578
4579 /* If No Commands are pending, wait is complete */
4580 if (index == ha->host->can_queue)
4581 return QLA_SUCCESS;
4582
4583 msleep(1000);
4584 }
4585 /* If we timed out on waiting for commands to come back
4586 * return ERROR. */
4587 return QLA_ERROR;
4588 }
4589
4590 int qla4xxx_hw_reset(struct scsi_qla_host *ha)
4591 {
4592 uint32_t ctrl_status;
4593 unsigned long flags = 0;
4594
4595 DEBUG2(printk(KERN_ERR "scsi%ld: %s\n", ha->host_no, __func__));
4596
4597 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS)
4598 return QLA_ERROR;
4599
4600 spin_lock_irqsave(&ha->hardware_lock, flags);
4601
4602 /*
4603 * If the SCSI Reset Interrupt bit is set, clear it.
4604 * Otherwise, the Soft Reset won't work.
4605 */
4606 ctrl_status = readw(&ha->reg->ctrl_status);
4607 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0)
4608 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status);
4609
4610 /* Issue Soft Reset */
4611 writel(set_rmask(CSR_SOFT_RESET), &ha->reg->ctrl_status);
4612 readl(&ha->reg->ctrl_status);
4613
4614 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4615 return QLA_SUCCESS;
4616 }
4617
4618 /**
4619 * qla4xxx_soft_reset - performs soft reset.
4620 * @ha: Pointer to host adapter structure.
4621 **/
4622 int qla4xxx_soft_reset(struct scsi_qla_host *ha)
4623 {
4624 uint32_t max_wait_time;
4625 unsigned long flags = 0;
4626 int status;
4627 uint32_t ctrl_status;
4628
4629 status = qla4xxx_hw_reset(ha);
4630 if (status != QLA_SUCCESS)
4631 return status;
4632
4633 status = QLA_ERROR;
4634 /* Wait until the Network Reset Intr bit is cleared */
4635 max_wait_time = RESET_INTR_TOV;
4636 do {
4637 spin_lock_irqsave(&ha->hardware_lock, flags);
4638 ctrl_status = readw(&ha->reg->ctrl_status);
4639 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4640
4641 if ((ctrl_status & CSR_NET_RESET_INTR) == 0)
4642 break;
4643
4644 msleep(1000);
4645 } while ((--max_wait_time));
4646
4647 if ((ctrl_status & CSR_NET_RESET_INTR) != 0) {
4648 DEBUG2(printk(KERN_WARNING
4649 "scsi%ld: Network Reset Intr not cleared by "
4650 "Network function, clearing it now!\n",
4651 ha->host_no));
4652 spin_lock_irqsave(&ha->hardware_lock, flags);
4653 writel(set_rmask(CSR_NET_RESET_INTR), &ha->reg->ctrl_status);
4654 readl(&ha->reg->ctrl_status);
4655 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4656 }
4657
4658 /* Wait until the firmware tells us the Soft Reset is done */
4659 max_wait_time = SOFT_RESET_TOV;
4660 do {
4661 spin_lock_irqsave(&ha->hardware_lock, flags);
4662 ctrl_status = readw(&ha->reg->ctrl_status);
4663 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4664
4665 if ((ctrl_status & CSR_SOFT_RESET) == 0) {
4666 status = QLA_SUCCESS;
4667 break;
4668 }
4669
4670 msleep(1000);
4671 } while ((--max_wait_time));
4672
4673 /*
4674 * Also, make sure that the SCSI Reset Interrupt bit has been cleared
4675 * after the soft reset has taken place.
4676 */
4677 spin_lock_irqsave(&ha->hardware_lock, flags);
4678 ctrl_status = readw(&ha->reg->ctrl_status);
4679 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) {
4680 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status);
4681 readl(&ha->reg->ctrl_status);
4682 }
4683 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4684
4685 /* If soft reset fails then most probably the bios on other
4686 * function is also enabled.
4687 * Since the initialization is sequential the other fn
4688 * wont be able to acknowledge the soft reset.
4689 * Issue a force soft reset to workaround this scenario.
4690 */
4691 if (max_wait_time == 0) {
4692 /* Issue Force Soft Reset */
4693 spin_lock_irqsave(&ha->hardware_lock, flags);
4694 writel(set_rmask(CSR_FORCE_SOFT_RESET), &ha->reg->ctrl_status);
4695 readl(&ha->reg->ctrl_status);
4696 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4697 /* Wait until the firmware tells us the Soft Reset is done */
4698 max_wait_time = SOFT_RESET_TOV;
4699 do {
4700 spin_lock_irqsave(&ha->hardware_lock, flags);
4701 ctrl_status = readw(&ha->reg->ctrl_status);
4702 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4703
4704 if ((ctrl_status & CSR_FORCE_SOFT_RESET) == 0) {
4705 status = QLA_SUCCESS;
4706 break;
4707 }
4708
4709 msleep(1000);
4710 } while ((--max_wait_time));
4711 }
4712
4713 return status;
4714 }
4715
4716 /**
4717 * qla4xxx_abort_active_cmds - returns all outstanding i/o requests to O.S.
4718 * @ha: Pointer to host adapter structure.
4719 * @res: returned scsi status
4720 *
4721 * This routine is called just prior to a HARD RESET to return all
4722 * outstanding commands back to the Operating System.
4723 * Caller should make sure that the following locks are released
4724 * before this calling routine: Hardware lock, and io_request_lock.
4725 **/
4726 static void qla4xxx_abort_active_cmds(struct scsi_qla_host *ha, int res)
4727 {
4728 struct srb *srb;
4729 int i;
4730 unsigned long flags;
4731
4732 spin_lock_irqsave(&ha->hardware_lock, flags);
4733 for (i = 0; i < ha->host->can_queue; i++) {
4734 srb = qla4xxx_del_from_active_array(ha, i);
4735 if (srb != NULL) {
4736 srb->cmd->result = res;
4737 kref_put(&srb->srb_ref, qla4xxx_srb_compl);
4738 }
4739 }
4740 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4741 }
4742
4743 void qla4xxx_dead_adapter_cleanup(struct scsi_qla_host *ha)
4744 {
4745 clear_bit(AF_ONLINE, &ha->flags);
4746
4747 /* Disable the board */
4748 ql4_printk(KERN_INFO, ha, "Disabling the board\n");
4749
4750 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
4751 qla4xxx_mark_all_devices_missing(ha);
4752 clear_bit(AF_INIT_DONE, &ha->flags);
4753 }
4754
4755 static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session)
4756 {
4757 struct iscsi_session *sess;
4758 struct ddb_entry *ddb_entry;
4759
4760 sess = cls_session->dd_data;
4761 ddb_entry = sess->dd_data;
4762 ddb_entry->fw_ddb_device_state = DDB_DS_SESSION_FAILED;
4763
4764 if (ddb_entry->ddb_type == FLASH_DDB)
4765 iscsi_block_session(ddb_entry->sess);
4766 else
4767 iscsi_session_failure(cls_session->dd_data,
4768 ISCSI_ERR_CONN_FAILED);
4769 }
4770
4771 /**
4772 * qla4xxx_recover_adapter - recovers adapter after a fatal error
4773 * @ha: Pointer to host adapter structure.
4774 **/
4775 static int qla4xxx_recover_adapter(struct scsi_qla_host *ha)
4776 {
4777 int status = QLA_ERROR;
4778 uint8_t reset_chip = 0;
4779 uint32_t dev_state;
4780 unsigned long wait;
4781
4782 /* Stall incoming I/O until we are done */
4783 scsi_block_requests(ha->host);
4784 clear_bit(AF_ONLINE, &ha->flags);
4785 clear_bit(AF_LINK_UP, &ha->flags);
4786
4787 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: adapter OFFLINE\n", __func__));
4788
4789 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
4790
4791 if ((is_qla8032(ha) || is_qla8042(ha)) &&
4792 !test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) {
4793 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
4794 __func__);
4795 /* disable pause frame for ISP83xx */
4796 qla4_83xx_disable_pause(ha);
4797 }
4798
4799 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session);
4800
4801 if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
4802 reset_chip = 1;
4803
4804 /* For the DPC_RESET_HA_INTR case (ISP-4xxx specific)
4805 * do not reset adapter, jump to initialize_adapter */
4806 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
4807 status = QLA_SUCCESS;
4808 goto recover_ha_init_adapter;
4809 }
4810
4811 /* For the ISP-8xxx adapter, issue a stop_firmware if invoked
4812 * from eh_host_reset or ioctl module */
4813 if (is_qla80XX(ha) && !reset_chip &&
4814 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) {
4815
4816 DEBUG2(ql4_printk(KERN_INFO, ha,
4817 "scsi%ld: %s - Performing stop_firmware...\n",
4818 ha->host_no, __func__));
4819 status = ha->isp_ops->reset_firmware(ha);
4820 if (status == QLA_SUCCESS) {
4821 if (!test_bit(AF_FW_RECOVERY, &ha->flags))
4822 qla4xxx_cmd_wait(ha);
4823
4824 ha->isp_ops->disable_intrs(ha);
4825 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
4826 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
4827 } else {
4828 /* If the stop_firmware fails then
4829 * reset the entire chip */
4830 reset_chip = 1;
4831 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
4832 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4833 }
4834 }
4835
4836 /* Issue full chip reset if recovering from a catastrophic error,
4837 * or if stop_firmware fails for ISP-8xxx.
4838 * This is the default case for ISP-4xxx */
4839 if (is_qla40XX(ha) || reset_chip) {
4840 if (is_qla40XX(ha))
4841 goto chip_reset;
4842
4843 /* Check if 8XXX firmware is alive or not
4844 * We may have arrived here from NEED_RESET
4845 * detection only */
4846 if (test_bit(AF_FW_RECOVERY, &ha->flags))
4847 goto chip_reset;
4848
4849 wait = jiffies + (FW_ALIVE_WAIT_TOV * HZ);
4850 while (time_before(jiffies, wait)) {
4851 if (qla4_8xxx_check_fw_alive(ha)) {
4852 qla4xxx_mailbox_premature_completion(ha);
4853 break;
4854 }
4855
4856 set_current_state(TASK_UNINTERRUPTIBLE);
4857 schedule_timeout(HZ);
4858 }
4859 chip_reset:
4860 if (!test_bit(AF_FW_RECOVERY, &ha->flags))
4861 qla4xxx_cmd_wait(ha);
4862
4863 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
4864 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
4865 DEBUG2(ql4_printk(KERN_INFO, ha,
4866 "scsi%ld: %s - Performing chip reset..\n",
4867 ha->host_no, __func__));
4868 status = ha->isp_ops->reset_chip(ha);
4869 }
4870
4871 /* Flush any pending ddb changed AENs */
4872 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
4873
4874 recover_ha_init_adapter:
4875 /* Upon successful firmware/chip reset, re-initialize the adapter */
4876 if (status == QLA_SUCCESS) {
4877 /* For ISP-4xxx, force function 1 to always initialize
4878 * before function 3 to prevent both funcions from
4879 * stepping on top of the other */
4880 if (is_qla40XX(ha) && (ha->mac_index == 3))
4881 ssleep(6);
4882
4883 /* NOTE: AF_ONLINE flag set upon successful completion of
4884 * qla4xxx_initialize_adapter */
4885 status = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
4886 }
4887
4888 /* Retry failed adapter initialization, if necessary
4889 * Do not retry initialize_adapter for RESET_HA_INTR (ISP-4xxx specific)
4890 * case to prevent ping-pong resets between functions */
4891 if (!test_bit(AF_ONLINE, &ha->flags) &&
4892 !test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
4893 /* Adapter initialization failed, see if we can retry
4894 * resetting the ha.
4895 * Since we don't want to block the DPC for too long
4896 * with multiple resets in the same thread,
4897 * utilize DPC to retry */
4898 if (is_qla80XX(ha)) {
4899 ha->isp_ops->idc_lock(ha);
4900 dev_state = qla4_8xxx_rd_direct(ha,
4901 QLA8XXX_CRB_DEV_STATE);
4902 ha->isp_ops->idc_unlock(ha);
4903 if (dev_state == QLA8XXX_DEV_FAILED) {
4904 ql4_printk(KERN_INFO, ha, "%s: don't retry "
4905 "recover adapter. H/W is in Failed "
4906 "state\n", __func__);
4907 qla4xxx_dead_adapter_cleanup(ha);
4908 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
4909 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
4910 clear_bit(DPC_RESET_HA_FW_CONTEXT,
4911 &ha->dpc_flags);
4912 status = QLA_ERROR;
4913
4914 goto exit_recover;
4915 }
4916 }
4917
4918 if (!test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags)) {
4919 ha->retry_reset_ha_cnt = MAX_RESET_HA_RETRIES;
4920 DEBUG2(printk("scsi%ld: recover adapter - retrying "
4921 "(%d) more times\n", ha->host_no,
4922 ha->retry_reset_ha_cnt));
4923 set_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
4924 status = QLA_ERROR;
4925 } else {
4926 if (ha->retry_reset_ha_cnt > 0) {
4927 /* Schedule another Reset HA--DPC will retry */
4928 ha->retry_reset_ha_cnt--;
4929 DEBUG2(printk("scsi%ld: recover adapter - "
4930 "retry remaining %d\n",
4931 ha->host_no,
4932 ha->retry_reset_ha_cnt));
4933 status = QLA_ERROR;
4934 }
4935
4936 if (ha->retry_reset_ha_cnt == 0) {
4937 /* Recover adapter retries have been exhausted.
4938 * Adapter DEAD */
4939 DEBUG2(printk("scsi%ld: recover adapter "
4940 "failed - board disabled\n",
4941 ha->host_no));
4942 qla4xxx_dead_adapter_cleanup(ha);
4943 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
4944 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
4945 clear_bit(DPC_RESET_HA_FW_CONTEXT,
4946 &ha->dpc_flags);
4947 status = QLA_ERROR;
4948 }
4949 }
4950 } else {
4951 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
4952 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
4953 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
4954 }
4955
4956 exit_recover:
4957 ha->adapter_error_count++;
4958
4959 if (test_bit(AF_ONLINE, &ha->flags))
4960 ha->isp_ops->enable_intrs(ha);
4961
4962 scsi_unblock_requests(ha->host);
4963
4964 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
4965 DEBUG2(printk("scsi%ld: recover adapter: %s\n", ha->host_no,
4966 status == QLA_ERROR ? "FAILED" : "SUCCEEDED"));
4967
4968 return status;
4969 }
4970
4971 static void qla4xxx_relogin_devices(struct iscsi_cls_session *cls_session)
4972 {
4973 struct iscsi_session *sess;
4974 struct ddb_entry *ddb_entry;
4975 struct scsi_qla_host *ha;
4976
4977 sess = cls_session->dd_data;
4978 ddb_entry = sess->dd_data;
4979 ha = ddb_entry->ha;
4980 if (!iscsi_is_session_online(cls_session)) {
4981 if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) {
4982 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
4983 " unblock session\n", ha->host_no, __func__,
4984 ddb_entry->fw_ddb_index);
4985 iscsi_unblock_session(ddb_entry->sess);
4986 } else {
4987 /* Trigger relogin */
4988 if (ddb_entry->ddb_type == FLASH_DDB) {
4989 if (!(test_bit(DF_RELOGIN, &ddb_entry->flags) ||
4990 test_bit(DF_DISABLE_RELOGIN,
4991 &ddb_entry->flags)))
4992 qla4xxx_arm_relogin_timer(ddb_entry);
4993 } else
4994 iscsi_session_failure(cls_session->dd_data,
4995 ISCSI_ERR_CONN_FAILED);
4996 }
4997 }
4998 }
4999
5000 int qla4xxx_unblock_flash_ddb(struct iscsi_cls_session *cls_session)
5001 {
5002 struct iscsi_session *sess;
5003 struct ddb_entry *ddb_entry;
5004 struct scsi_qla_host *ha;
5005
5006 sess = cls_session->dd_data;
5007 ddb_entry = sess->dd_data;
5008 ha = ddb_entry->ha;
5009 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5010 " unblock session\n", ha->host_no, __func__,
5011 ddb_entry->fw_ddb_index);
5012
5013 iscsi_unblock_session(ddb_entry->sess);
5014
5015 /* Start scan target */
5016 if (test_bit(AF_ONLINE, &ha->flags)) {
5017 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5018 " start scan\n", ha->host_no, __func__,
5019 ddb_entry->fw_ddb_index);
5020 scsi_queue_work(ha->host, &ddb_entry->sess->scan_work);
5021 }
5022 return QLA_SUCCESS;
5023 }
5024
5025 int qla4xxx_unblock_ddb(struct iscsi_cls_session *cls_session)
5026 {
5027 struct iscsi_session *sess;
5028 struct ddb_entry *ddb_entry;
5029 struct scsi_qla_host *ha;
5030 int status = QLA_SUCCESS;
5031
5032 sess = cls_session->dd_data;
5033 ddb_entry = sess->dd_data;
5034 ha = ddb_entry->ha;
5035 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5036 " unblock user space session\n", ha->host_no, __func__,
5037 ddb_entry->fw_ddb_index);
5038
5039 if (!iscsi_is_session_online(cls_session)) {
5040 iscsi_conn_start(ddb_entry->conn);
5041 iscsi_conn_login_event(ddb_entry->conn,
5042 ISCSI_CONN_STATE_LOGGED_IN);
5043 } else {
5044 ql4_printk(KERN_INFO, ha,
5045 "scsi%ld: %s: ddb[%d] session [%d] already logged in\n",
5046 ha->host_no, __func__, ddb_entry->fw_ddb_index,
5047 cls_session->sid);
5048 status = QLA_ERROR;
5049 }
5050
5051 return status;
5052 }
5053
5054 static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha)
5055 {
5056 iscsi_host_for_each_session(ha->host, qla4xxx_relogin_devices);
5057 }
5058
5059 static void qla4xxx_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)
5060 {
5061 uint16_t relogin_timer;
5062 struct iscsi_session *sess;
5063 struct ddb_entry *ddb_entry;
5064 struct scsi_qla_host *ha;
5065
5066 sess = cls_sess->dd_data;
5067 ddb_entry = sess->dd_data;
5068 ha = ddb_entry->ha;
5069
5070 relogin_timer = max(ddb_entry->default_relogin_timeout,
5071 (uint16_t)RELOGIN_TOV);
5072 atomic_set(&ddb_entry->relogin_timer, relogin_timer);
5073
5074 DEBUG2(ql4_printk(KERN_INFO, ha,
5075 "scsi%ld: Relogin index [%d]. TOV=%d\n", ha->host_no,
5076 ddb_entry->fw_ddb_index, relogin_timer));
5077
5078 qla4xxx_login_flash_ddb(cls_sess);
5079 }
5080
5081 static void qla4xxx_dpc_relogin(struct iscsi_cls_session *cls_sess)
5082 {
5083 struct iscsi_session *sess;
5084 struct ddb_entry *ddb_entry;
5085 struct scsi_qla_host *ha;
5086
5087 sess = cls_sess->dd_data;
5088 ddb_entry = sess->dd_data;
5089 ha = ddb_entry->ha;
5090
5091 if (!(ddb_entry->ddb_type == FLASH_DDB))
5092 return;
5093
5094 if (test_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags))
5095 return;
5096
5097 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags) &&
5098 !iscsi_is_session_online(cls_sess)) {
5099 DEBUG2(ql4_printk(KERN_INFO, ha,
5100 "relogin issued\n"));
5101 qla4xxx_relogin_flash_ddb(cls_sess);
5102 }
5103 }
5104
5105 void qla4xxx_wake_dpc(struct scsi_qla_host *ha)
5106 {
5107 if (ha->dpc_thread)
5108 queue_work(ha->dpc_thread, &ha->dpc_work);
5109 }
5110
5111 static struct qla4_work_evt *
5112 qla4xxx_alloc_work(struct scsi_qla_host *ha, uint32_t data_size,
5113 enum qla4_work_type type)
5114 {
5115 struct qla4_work_evt *e;
5116 uint32_t size = sizeof(struct qla4_work_evt) + data_size;
5117
5118 e = kzalloc(size, GFP_ATOMIC);
5119 if (!e)
5120 return NULL;
5121
5122 INIT_LIST_HEAD(&e->list);
5123 e->type = type;
5124 return e;
5125 }
5126
5127 static void qla4xxx_post_work(struct scsi_qla_host *ha,
5128 struct qla4_work_evt *e)
5129 {
5130 unsigned long flags;
5131
5132 spin_lock_irqsave(&ha->work_lock, flags);
5133 list_add_tail(&e->list, &ha->work_list);
5134 spin_unlock_irqrestore(&ha->work_lock, flags);
5135 qla4xxx_wake_dpc(ha);
5136 }
5137
5138 int qla4xxx_post_aen_work(struct scsi_qla_host *ha,
5139 enum iscsi_host_event_code aen_code,
5140 uint32_t data_size, uint8_t *data)
5141 {
5142 struct qla4_work_evt *e;
5143
5144 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_AEN);
5145 if (!e)
5146 return QLA_ERROR;
5147
5148 e->u.aen.code = aen_code;
5149 e->u.aen.data_size = data_size;
5150 memcpy(e->u.aen.data, data, data_size);
5151
5152 qla4xxx_post_work(ha, e);
5153
5154 return QLA_SUCCESS;
5155 }
5156
5157 int qla4xxx_post_ping_evt_work(struct scsi_qla_host *ha,
5158 uint32_t status, uint32_t pid,
5159 uint32_t data_size, uint8_t *data)
5160 {
5161 struct qla4_work_evt *e;
5162
5163 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_PING_STATUS);
5164 if (!e)
5165 return QLA_ERROR;
5166
5167 e->u.ping.status = status;
5168 e->u.ping.pid = pid;
5169 e->u.ping.data_size = data_size;
5170 memcpy(e->u.ping.data, data, data_size);
5171
5172 qla4xxx_post_work(ha, e);
5173
5174 return QLA_SUCCESS;
5175 }
5176
5177 static void qla4xxx_do_work(struct scsi_qla_host *ha)
5178 {
5179 struct qla4_work_evt *e, *tmp;
5180 unsigned long flags;
5181 LIST_HEAD(work);
5182
5183 spin_lock_irqsave(&ha->work_lock, flags);
5184 list_splice_init(&ha->work_list, &work);
5185 spin_unlock_irqrestore(&ha->work_lock, flags);
5186
5187 list_for_each_entry_safe(e, tmp, &work, list) {
5188 list_del_init(&e->list);
5189
5190 switch (e->type) {
5191 case QLA4_EVENT_AEN:
5192 iscsi_post_host_event(ha->host_no,
5193 &qla4xxx_iscsi_transport,
5194 e->u.aen.code,
5195 e->u.aen.data_size,
5196 e->u.aen.data);
5197 break;
5198 case QLA4_EVENT_PING_STATUS:
5199 iscsi_ping_comp_event(ha->host_no,
5200 &qla4xxx_iscsi_transport,
5201 e->u.ping.status,
5202 e->u.ping.pid,
5203 e->u.ping.data_size,
5204 e->u.ping.data);
5205 break;
5206 default:
5207 ql4_printk(KERN_WARNING, ha, "event type: 0x%x not "
5208 "supported", e->type);
5209 }
5210 kfree(e);
5211 }
5212 }
5213
5214 /**
5215 * qla4xxx_do_dpc - dpc routine
5216 * @data: in our case pointer to adapter structure
5217 *
5218 * This routine is a task that is schedule by the interrupt handler
5219 * to perform the background processing for interrupts. We put it
5220 * on a task queue that is consumed whenever the scheduler runs; that's
5221 * so you can do anything (i.e. put the process to sleep etc). In fact,
5222 * the mid-level tries to sleep when it reaches the driver threshold
5223 * "host->can_queue". This can cause a panic if we were in our interrupt code.
5224 **/
5225 static void qla4xxx_do_dpc(struct work_struct *work)
5226 {
5227 struct scsi_qla_host *ha =
5228 container_of(work, struct scsi_qla_host, dpc_work);
5229 int status = QLA_ERROR;
5230
5231 DEBUG2(printk("scsi%ld: %s: DPC handler waking up."
5232 "flags = 0x%08lx, dpc_flags = 0x%08lx\n",
5233 ha->host_no, __func__, ha->flags, ha->dpc_flags))
5234
5235 /* Initialization not yet finished. Don't do anything yet. */
5236 if (!test_bit(AF_INIT_DONE, &ha->flags))
5237 return;
5238
5239 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
5240 DEBUG2(printk(KERN_INFO "scsi%ld: %s: flags = %lx\n",
5241 ha->host_no, __func__, ha->flags));
5242 return;
5243 }
5244
5245 /* post events to application */
5246 qla4xxx_do_work(ha);
5247
5248 if (is_qla80XX(ha)) {
5249 if (test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags)) {
5250 if (is_qla8032(ha) || is_qla8042(ha)) {
5251 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
5252 __func__);
5253 /* disable pause frame for ISP83xx */
5254 qla4_83xx_disable_pause(ha);
5255 }
5256
5257 ha->isp_ops->idc_lock(ha);
5258 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
5259 QLA8XXX_DEV_FAILED);
5260 ha->isp_ops->idc_unlock(ha);
5261 ql4_printk(KERN_INFO, ha, "HW State: FAILED\n");
5262 qla4_8xxx_device_state_handler(ha);
5263 }
5264
5265 if (test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags)) {
5266 if (is_qla8042(ha)) {
5267 if (ha->idc_info.info2 &
5268 ENABLE_INTERNAL_LOOPBACK) {
5269 ql4_printk(KERN_INFO, ha, "%s: Disabling ACB\n",
5270 __func__);
5271 status = qla4_84xx_config_acb(ha,
5272 ACB_CONFIG_DISABLE);
5273 if (status != QLA_SUCCESS) {
5274 ql4_printk(KERN_INFO, ha, "%s: ACB config failed\n",
5275 __func__);
5276 }
5277 }
5278 }
5279 qla4_83xx_post_idc_ack(ha);
5280 clear_bit(DPC_POST_IDC_ACK, &ha->dpc_flags);
5281 }
5282
5283 if (is_qla8042(ha) &&
5284 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags)) {
5285 ql4_printk(KERN_INFO, ha, "%s: Restoring ACB\n",
5286 __func__);
5287 if (qla4_84xx_config_acb(ha, ACB_CONFIG_SET) !=
5288 QLA_SUCCESS) {
5289 ql4_printk(KERN_INFO, ha, "%s: ACB config failed ",
5290 __func__);
5291 }
5292 clear_bit(DPC_RESTORE_ACB, &ha->dpc_flags);
5293 }
5294
5295 if (test_and_clear_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) {
5296 qla4_8xxx_need_qsnt_handler(ha);
5297 }
5298 }
5299
5300 if (!test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) &&
5301 (test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
5302 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
5303 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))) {
5304 if ((is_qla8022(ha) && ql4xdontresethba) ||
5305 ((is_qla8032(ha) || is_qla8042(ha)) &&
5306 qla4_83xx_idc_dontreset(ha))) {
5307 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n",
5308 ha->host_no, __func__));
5309 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
5310 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags);
5311 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
5312 goto dpc_post_reset_ha;
5313 }
5314 if (test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) ||
5315 test_bit(DPC_RESET_HA, &ha->dpc_flags))
5316 qla4xxx_recover_adapter(ha);
5317
5318 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
5319 uint8_t wait_time = RESET_INTR_TOV;
5320
5321 while ((readw(&ha->reg->ctrl_status) &
5322 (CSR_SOFT_RESET | CSR_FORCE_SOFT_RESET)) != 0) {
5323 if (--wait_time == 0)
5324 break;
5325 msleep(1000);
5326 }
5327 if (wait_time == 0)
5328 DEBUG2(printk("scsi%ld: %s: SR|FSR "
5329 "bit not cleared-- resetting\n",
5330 ha->host_no, __func__));
5331 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
5332 if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS) {
5333 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
5334 status = qla4xxx_recover_adapter(ha);
5335 }
5336 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags);
5337 if (status == QLA_SUCCESS)
5338 ha->isp_ops->enable_intrs(ha);
5339 }
5340 }
5341
5342 dpc_post_reset_ha:
5343 /* ---- process AEN? --- */
5344 if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags))
5345 qla4xxx_process_aen(ha, PROCESS_ALL_AENS);
5346
5347 /* ---- Get DHCP IP Address? --- */
5348 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags))
5349 qla4xxx_get_dhcp_ip_address(ha);
5350
5351 /* ---- relogin device? --- */
5352 if (adapter_up(ha) &&
5353 test_and_clear_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags)) {
5354 iscsi_host_for_each_session(ha->host, qla4xxx_dpc_relogin);
5355 }
5356
5357 /* ---- link change? --- */
5358 if (!test_bit(AF_LOOPBACK, &ha->flags) &&
5359 test_and_clear_bit(DPC_LINK_CHANGED, &ha->dpc_flags)) {
5360 if (!test_bit(AF_LINK_UP, &ha->flags)) {
5361 /* ---- link down? --- */
5362 qla4xxx_mark_all_devices_missing(ha);
5363 } else {
5364 /* ---- link up? --- *
5365 * F/W will auto login to all devices ONLY ONCE after
5366 * link up during driver initialization and runtime
5367 * fatal error recovery. Therefore, the driver must
5368 * manually relogin to devices when recovering from
5369 * connection failures, logouts, expired KATO, etc. */
5370 if (test_and_clear_bit(AF_BUILD_DDB_LIST, &ha->flags)) {
5371 qla4xxx_build_ddb_list(ha, ha->is_reset);
5372 iscsi_host_for_each_session(ha->host,
5373 qla4xxx_login_flash_ddb);
5374 } else
5375 qla4xxx_relogin_all_devices(ha);
5376 }
5377 }
5378 }
5379
5380 /**
5381 * qla4xxx_free_adapter - release the adapter
5382 * @ha: pointer to adapter structure
5383 **/
5384 static void qla4xxx_free_adapter(struct scsi_qla_host *ha)
5385 {
5386 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
5387
5388 /* Turn-off interrupts on the card. */
5389 ha->isp_ops->disable_intrs(ha);
5390
5391 if (is_qla40XX(ha)) {
5392 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR),
5393 &ha->reg->ctrl_status);
5394 readl(&ha->reg->ctrl_status);
5395 } else if (is_qla8022(ha)) {
5396 writel(0, &ha->qla4_82xx_reg->host_int);
5397 readl(&ha->qla4_82xx_reg->host_int);
5398 } else if (is_qla8032(ha) || is_qla8042(ha)) {
5399 writel(0, &ha->qla4_83xx_reg->risc_intr);
5400 readl(&ha->qla4_83xx_reg->risc_intr);
5401 }
5402
5403 /* Remove timer thread, if present */
5404 if (ha->timer_active)
5405 qla4xxx_stop_timer(ha);
5406
5407 /* Kill the kernel thread for this host */
5408 if (ha->dpc_thread)
5409 destroy_workqueue(ha->dpc_thread);
5410
5411 /* Kill the kernel thread for this host */
5412 if (ha->task_wq)
5413 destroy_workqueue(ha->task_wq);
5414
5415 /* Put firmware in known state */
5416 ha->isp_ops->reset_firmware(ha);
5417
5418 if (is_qla80XX(ha)) {
5419 ha->isp_ops->idc_lock(ha);
5420 qla4_8xxx_clear_drv_active(ha);
5421 ha->isp_ops->idc_unlock(ha);
5422 }
5423
5424 /* Detach interrupts */
5425 qla4xxx_free_irqs(ha);
5426
5427 /* free extra memory */
5428 qla4xxx_mem_free(ha);
5429 }
5430
5431 int qla4_8xxx_iospace_config(struct scsi_qla_host *ha)
5432 {
5433 int status = 0;
5434 unsigned long mem_base, mem_len, db_base, db_len;
5435 struct pci_dev *pdev = ha->pdev;
5436
5437 status = pci_request_regions(pdev, DRIVER_NAME);
5438 if (status) {
5439 printk(KERN_WARNING
5440 "scsi(%ld) Failed to reserve PIO regions (%s) "
5441 "status=%d\n", ha->host_no, pci_name(pdev), status);
5442 goto iospace_error_exit;
5443 }
5444
5445 DEBUG2(printk(KERN_INFO "%s: revision-id=%d\n",
5446 __func__, pdev->revision));
5447 ha->revision_id = pdev->revision;
5448
5449 /* remap phys address */
5450 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
5451 mem_len = pci_resource_len(pdev, 0);
5452 DEBUG2(printk(KERN_INFO "%s: ioremap from %lx a size of %lx\n",
5453 __func__, mem_base, mem_len));
5454
5455 /* mapping of pcibase pointer */
5456 ha->nx_pcibase = (unsigned long)ioremap(mem_base, mem_len);
5457 if (!ha->nx_pcibase) {
5458 printk(KERN_ERR
5459 "cannot remap MMIO (%s), aborting\n", pci_name(pdev));
5460 pci_release_regions(ha->pdev);
5461 goto iospace_error_exit;
5462 }
5463
5464 /* Mapping of IO base pointer, door bell read and write pointer */
5465
5466 /* mapping of IO base pointer */
5467 if (is_qla8022(ha)) {
5468 ha->qla4_82xx_reg = (struct device_reg_82xx __iomem *)
5469 ((uint8_t *)ha->nx_pcibase + 0xbc000 +
5470 (ha->pdev->devfn << 11));
5471 ha->nx_db_wr_ptr = (ha->pdev->devfn == 4 ? QLA82XX_CAM_RAM_DB1 :
5472 QLA82XX_CAM_RAM_DB2);
5473 } else if (is_qla8032(ha) || is_qla8042(ha)) {
5474 ha->qla4_83xx_reg = (struct device_reg_83xx __iomem *)
5475 ((uint8_t *)ha->nx_pcibase);
5476 }
5477
5478 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
5479 db_len = pci_resource_len(pdev, 4);
5480
5481 return 0;
5482 iospace_error_exit:
5483 return -ENOMEM;
5484 }
5485
5486 /***
5487 * qla4xxx_iospace_config - maps registers
5488 * @ha: pointer to adapter structure
5489 *
5490 * This routines maps HBA's registers from the pci address space
5491 * into the kernel virtual address space for memory mapped i/o.
5492 **/
5493 int qla4xxx_iospace_config(struct scsi_qla_host *ha)
5494 {
5495 unsigned long pio, pio_len, pio_flags;
5496 unsigned long mmio, mmio_len, mmio_flags;
5497
5498 pio = pci_resource_start(ha->pdev, 0);
5499 pio_len = pci_resource_len(ha->pdev, 0);
5500 pio_flags = pci_resource_flags(ha->pdev, 0);
5501 if (pio_flags & IORESOURCE_IO) {
5502 if (pio_len < MIN_IOBASE_LEN) {
5503 ql4_printk(KERN_WARNING, ha,
5504 "Invalid PCI I/O region size\n");
5505 pio = 0;
5506 }
5507 } else {
5508 ql4_printk(KERN_WARNING, ha, "region #0 not a PIO resource\n");
5509 pio = 0;
5510 }
5511
5512 /* Use MMIO operations for all accesses. */
5513 mmio = pci_resource_start(ha->pdev, 1);
5514 mmio_len = pci_resource_len(ha->pdev, 1);
5515 mmio_flags = pci_resource_flags(ha->pdev, 1);
5516
5517 if (!(mmio_flags & IORESOURCE_MEM)) {
5518 ql4_printk(KERN_ERR, ha,
5519 "region #0 not an MMIO resource, aborting\n");
5520
5521 goto iospace_error_exit;
5522 }
5523
5524 if (mmio_len < MIN_IOBASE_LEN) {
5525 ql4_printk(KERN_ERR, ha,
5526 "Invalid PCI mem region size, aborting\n");
5527 goto iospace_error_exit;
5528 }
5529
5530 if (pci_request_regions(ha->pdev, DRIVER_NAME)) {
5531 ql4_printk(KERN_WARNING, ha,
5532 "Failed to reserve PIO/MMIO regions\n");
5533
5534 goto iospace_error_exit;
5535 }
5536
5537 ha->pio_address = pio;
5538 ha->pio_length = pio_len;
5539 ha->reg = ioremap(mmio, MIN_IOBASE_LEN);
5540 if (!ha->reg) {
5541 ql4_printk(KERN_ERR, ha,
5542 "cannot remap MMIO, aborting\n");
5543
5544 goto iospace_error_exit;
5545 }
5546
5547 return 0;
5548
5549 iospace_error_exit:
5550 return -ENOMEM;
5551 }
5552
5553 static struct isp_operations qla4xxx_isp_ops = {
5554 .iospace_config = qla4xxx_iospace_config,
5555 .pci_config = qla4xxx_pci_config,
5556 .disable_intrs = qla4xxx_disable_intrs,
5557 .enable_intrs = qla4xxx_enable_intrs,
5558 .start_firmware = qla4xxx_start_firmware,
5559 .intr_handler = qla4xxx_intr_handler,
5560 .interrupt_service_routine = qla4xxx_interrupt_service_routine,
5561 .reset_chip = qla4xxx_soft_reset,
5562 .reset_firmware = qla4xxx_hw_reset,
5563 .queue_iocb = qla4xxx_queue_iocb,
5564 .complete_iocb = qla4xxx_complete_iocb,
5565 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out,
5566 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in,
5567 .get_sys_info = qla4xxx_get_sys_info,
5568 .queue_mailbox_command = qla4xxx_queue_mbox_cmd,
5569 .process_mailbox_interrupt = qla4xxx_process_mbox_intr,
5570 };
5571
5572 static struct isp_operations qla4_82xx_isp_ops = {
5573 .iospace_config = qla4_8xxx_iospace_config,
5574 .pci_config = qla4_8xxx_pci_config,
5575 .disable_intrs = qla4_82xx_disable_intrs,
5576 .enable_intrs = qla4_82xx_enable_intrs,
5577 .start_firmware = qla4_8xxx_load_risc,
5578 .restart_firmware = qla4_82xx_try_start_fw,
5579 .intr_handler = qla4_82xx_intr_handler,
5580 .interrupt_service_routine = qla4_82xx_interrupt_service_routine,
5581 .need_reset = qla4_8xxx_need_reset,
5582 .reset_chip = qla4_82xx_isp_reset,
5583 .reset_firmware = qla4_8xxx_stop_firmware,
5584 .queue_iocb = qla4_82xx_queue_iocb,
5585 .complete_iocb = qla4_82xx_complete_iocb,
5586 .rd_shdw_req_q_out = qla4_82xx_rd_shdw_req_q_out,
5587 .rd_shdw_rsp_q_in = qla4_82xx_rd_shdw_rsp_q_in,
5588 .get_sys_info = qla4_8xxx_get_sys_info,
5589 .rd_reg_direct = qla4_82xx_rd_32,
5590 .wr_reg_direct = qla4_82xx_wr_32,
5591 .rd_reg_indirect = qla4_82xx_md_rd_32,
5592 .wr_reg_indirect = qla4_82xx_md_wr_32,
5593 .idc_lock = qla4_82xx_idc_lock,
5594 .idc_unlock = qla4_82xx_idc_unlock,
5595 .rom_lock_recovery = qla4_82xx_rom_lock_recovery,
5596 .queue_mailbox_command = qla4_82xx_queue_mbox_cmd,
5597 .process_mailbox_interrupt = qla4_82xx_process_mbox_intr,
5598 };
5599
5600 static struct isp_operations qla4_83xx_isp_ops = {
5601 .iospace_config = qla4_8xxx_iospace_config,
5602 .pci_config = qla4_8xxx_pci_config,
5603 .disable_intrs = qla4_83xx_disable_intrs,
5604 .enable_intrs = qla4_83xx_enable_intrs,
5605 .start_firmware = qla4_8xxx_load_risc,
5606 .restart_firmware = qla4_83xx_start_firmware,
5607 .intr_handler = qla4_83xx_intr_handler,
5608 .interrupt_service_routine = qla4_83xx_interrupt_service_routine,
5609 .need_reset = qla4_8xxx_need_reset,
5610 .reset_chip = qla4_83xx_isp_reset,
5611 .reset_firmware = qla4_8xxx_stop_firmware,
5612 .queue_iocb = qla4_83xx_queue_iocb,
5613 .complete_iocb = qla4_83xx_complete_iocb,
5614 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out,
5615 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in,
5616 .get_sys_info = qla4_8xxx_get_sys_info,
5617 .rd_reg_direct = qla4_83xx_rd_reg,
5618 .wr_reg_direct = qla4_83xx_wr_reg,
5619 .rd_reg_indirect = qla4_83xx_rd_reg_indirect,
5620 .wr_reg_indirect = qla4_83xx_wr_reg_indirect,
5621 .idc_lock = qla4_83xx_drv_lock,
5622 .idc_unlock = qla4_83xx_drv_unlock,
5623 .rom_lock_recovery = qla4_83xx_rom_lock_recovery,
5624 .queue_mailbox_command = qla4_83xx_queue_mbox_cmd,
5625 .process_mailbox_interrupt = qla4_83xx_process_mbox_intr,
5626 };
5627
5628 uint16_t qla4xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha)
5629 {
5630 return (uint16_t)le32_to_cpu(ha->shadow_regs->req_q_out);
5631 }
5632
5633 uint16_t qla4_82xx_rd_shdw_req_q_out(struct scsi_qla_host *ha)
5634 {
5635 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->req_q_out));
5636 }
5637
5638 uint16_t qla4xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha)
5639 {
5640 return (uint16_t)le32_to_cpu(ha->shadow_regs->rsp_q_in);
5641 }
5642
5643 uint16_t qla4_82xx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha)
5644 {
5645 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->rsp_q_in));
5646 }
5647
5648 static ssize_t qla4xxx_show_boot_eth_info(void *data, int type, char *buf)
5649 {
5650 struct scsi_qla_host *ha = data;
5651 char *str = buf;
5652 int rc;
5653
5654 switch (type) {
5655 case ISCSI_BOOT_ETH_FLAGS:
5656 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT);
5657 break;
5658 case ISCSI_BOOT_ETH_INDEX:
5659 rc = sprintf(str, "0\n");
5660 break;
5661 case ISCSI_BOOT_ETH_MAC:
5662 rc = sysfs_format_mac(str, ha->my_mac,
5663 MAC_ADDR_LEN);
5664 break;
5665 default:
5666 rc = -ENOSYS;
5667 break;
5668 }
5669 return rc;
5670 }
5671
5672 static umode_t qla4xxx_eth_get_attr_visibility(void *data, int type)
5673 {
5674 int rc;
5675
5676 switch (type) {
5677 case ISCSI_BOOT_ETH_FLAGS:
5678 case ISCSI_BOOT_ETH_MAC:
5679 case ISCSI_BOOT_ETH_INDEX:
5680 rc = S_IRUGO;
5681 break;
5682 default:
5683 rc = 0;
5684 break;
5685 }
5686 return rc;
5687 }
5688
5689 static ssize_t qla4xxx_show_boot_ini_info(void *data, int type, char *buf)
5690 {
5691 struct scsi_qla_host *ha = data;
5692 char *str = buf;
5693 int rc;
5694
5695 switch (type) {
5696 case ISCSI_BOOT_INI_INITIATOR_NAME:
5697 rc = sprintf(str, "%s\n", ha->name_string);
5698 break;
5699 default:
5700 rc = -ENOSYS;
5701 break;
5702 }
5703 return rc;
5704 }
5705
5706 static umode_t qla4xxx_ini_get_attr_visibility(void *data, int type)
5707 {
5708 int rc;
5709
5710 switch (type) {
5711 case ISCSI_BOOT_INI_INITIATOR_NAME:
5712 rc = S_IRUGO;
5713 break;
5714 default:
5715 rc = 0;
5716 break;
5717 }
5718 return rc;
5719 }
5720
5721 static ssize_t
5722 qla4xxx_show_boot_tgt_info(struct ql4_boot_session_info *boot_sess, int type,
5723 char *buf)
5724 {
5725 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0];
5726 char *str = buf;
5727 int rc;
5728
5729 switch (type) {
5730 case ISCSI_BOOT_TGT_NAME:
5731 rc = sprintf(buf, "%s\n", (char *)&boot_sess->target_name);
5732 break;
5733 case ISCSI_BOOT_TGT_IP_ADDR:
5734 if (boot_sess->conn_list[0].dest_ipaddr.ip_type == 0x1)
5735 rc = sprintf(buf, "%pI4\n",
5736 &boot_conn->dest_ipaddr.ip_address);
5737 else
5738 rc = sprintf(str, "%pI6\n",
5739 &boot_conn->dest_ipaddr.ip_address);
5740 break;
5741 case ISCSI_BOOT_TGT_PORT:
5742 rc = sprintf(str, "%d\n", boot_conn->dest_port);
5743 break;
5744 case ISCSI_BOOT_TGT_CHAP_NAME:
5745 rc = sprintf(str, "%.*s\n",
5746 boot_conn->chap.target_chap_name_length,
5747 (char *)&boot_conn->chap.target_chap_name);
5748 break;
5749 case ISCSI_BOOT_TGT_CHAP_SECRET:
5750 rc = sprintf(str, "%.*s\n",
5751 boot_conn->chap.target_secret_length,
5752 (char *)&boot_conn->chap.target_secret);
5753 break;
5754 case ISCSI_BOOT_TGT_REV_CHAP_NAME:
5755 rc = sprintf(str, "%.*s\n",
5756 boot_conn->chap.intr_chap_name_length,
5757 (char *)&boot_conn->chap.intr_chap_name);
5758 break;
5759 case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
5760 rc = sprintf(str, "%.*s\n",
5761 boot_conn->chap.intr_secret_length,
5762 (char *)&boot_conn->chap.intr_secret);
5763 break;
5764 case ISCSI_BOOT_TGT_FLAGS:
5765 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT);
5766 break;
5767 case ISCSI_BOOT_TGT_NIC_ASSOC:
5768 rc = sprintf(str, "0\n");
5769 break;
5770 default:
5771 rc = -ENOSYS;
5772 break;
5773 }
5774 return rc;
5775 }
5776
5777 static ssize_t qla4xxx_show_boot_tgt_pri_info(void *data, int type, char *buf)
5778 {
5779 struct scsi_qla_host *ha = data;
5780 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_pri_sess);
5781
5782 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf);
5783 }
5784
5785 static ssize_t qla4xxx_show_boot_tgt_sec_info(void *data, int type, char *buf)
5786 {
5787 struct scsi_qla_host *ha = data;
5788 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_sec_sess);
5789
5790 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf);
5791 }
5792
5793 static umode_t qla4xxx_tgt_get_attr_visibility(void *data, int type)
5794 {
5795 int rc;
5796
5797 switch (type) {
5798 case ISCSI_BOOT_TGT_NAME:
5799 case ISCSI_BOOT_TGT_IP_ADDR:
5800 case ISCSI_BOOT_TGT_PORT:
5801 case ISCSI_BOOT_TGT_CHAP_NAME:
5802 case ISCSI_BOOT_TGT_CHAP_SECRET:
5803 case ISCSI_BOOT_TGT_REV_CHAP_NAME:
5804 case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
5805 case ISCSI_BOOT_TGT_NIC_ASSOC:
5806 case ISCSI_BOOT_TGT_FLAGS:
5807 rc = S_IRUGO;
5808 break;
5809 default:
5810 rc = 0;
5811 break;
5812 }
5813 return rc;
5814 }
5815
5816 static void qla4xxx_boot_release(void *data)
5817 {
5818 struct scsi_qla_host *ha = data;
5819
5820 scsi_host_put(ha->host);
5821 }
5822
5823 static int get_fw_boot_info(struct scsi_qla_host *ha, uint16_t ddb_index[])
5824 {
5825 dma_addr_t buf_dma;
5826 uint32_t addr, pri_addr, sec_addr;
5827 uint32_t offset;
5828 uint16_t func_num;
5829 uint8_t val;
5830 uint8_t *buf = NULL;
5831 size_t size = 13 * sizeof(uint8_t);
5832 int ret = QLA_SUCCESS;
5833
5834 func_num = PCI_FUNC(ha->pdev->devfn);
5835
5836 ql4_printk(KERN_INFO, ha, "%s: Get FW boot info for 0x%x func %d\n",
5837 __func__, ha->pdev->device, func_num);
5838
5839 if (is_qla40XX(ha)) {
5840 if (func_num == 1) {
5841 addr = NVRAM_PORT0_BOOT_MODE;
5842 pri_addr = NVRAM_PORT0_BOOT_PRI_TGT;
5843 sec_addr = NVRAM_PORT0_BOOT_SEC_TGT;
5844 } else if (func_num == 3) {
5845 addr = NVRAM_PORT1_BOOT_MODE;
5846 pri_addr = NVRAM_PORT1_BOOT_PRI_TGT;
5847 sec_addr = NVRAM_PORT1_BOOT_SEC_TGT;
5848 } else {
5849 ret = QLA_ERROR;
5850 goto exit_boot_info;
5851 }
5852
5853 /* Check Boot Mode */
5854 val = rd_nvram_byte(ha, addr);
5855 if (!(val & 0x07)) {
5856 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Adapter boot "
5857 "options : 0x%x\n", __func__, val));
5858 ret = QLA_ERROR;
5859 goto exit_boot_info;
5860 }
5861
5862 /* get primary valid target index */
5863 val = rd_nvram_byte(ha, pri_addr);
5864 if (val & BIT_7)
5865 ddb_index[0] = (val & 0x7f);
5866
5867 /* get secondary valid target index */
5868 val = rd_nvram_byte(ha, sec_addr);
5869 if (val & BIT_7)
5870 ddb_index[1] = (val & 0x7f);
5871
5872 } else if (is_qla80XX(ha)) {
5873 buf = dma_alloc_coherent(&ha->pdev->dev, size,
5874 &buf_dma, GFP_KERNEL);
5875 if (!buf) {
5876 DEBUG2(ql4_printk(KERN_ERR, ha,
5877 "%s: Unable to allocate dma buffer\n",
5878 __func__));
5879 ret = QLA_ERROR;
5880 goto exit_boot_info;
5881 }
5882
5883 if (ha->port_num == 0)
5884 offset = BOOT_PARAM_OFFSET_PORT0;
5885 else if (ha->port_num == 1)
5886 offset = BOOT_PARAM_OFFSET_PORT1;
5887 else {
5888 ret = QLA_ERROR;
5889 goto exit_boot_info_free;
5890 }
5891 addr = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_iscsi_param * 4) +
5892 offset;
5893 if (qla4xxx_get_flash(ha, buf_dma, addr,
5894 13 * sizeof(uint8_t)) != QLA_SUCCESS) {
5895 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: Get Flash"
5896 " failed\n", ha->host_no, __func__));
5897 ret = QLA_ERROR;
5898 goto exit_boot_info_free;
5899 }
5900 /* Check Boot Mode */
5901 if (!(buf[1] & 0x07)) {
5902 DEBUG2(ql4_printk(KERN_INFO, ha, "Firmware boot options"
5903 " : 0x%x\n", buf[1]));
5904 ret = QLA_ERROR;
5905 goto exit_boot_info_free;
5906 }
5907
5908 /* get primary valid target index */
5909 if (buf[2] & BIT_7)
5910 ddb_index[0] = buf[2] & 0x7f;
5911
5912 /* get secondary valid target index */
5913 if (buf[11] & BIT_7)
5914 ddb_index[1] = buf[11] & 0x7f;
5915 } else {
5916 ret = QLA_ERROR;
5917 goto exit_boot_info;
5918 }
5919
5920 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary target ID %d, Secondary"
5921 " target ID %d\n", __func__, ddb_index[0],
5922 ddb_index[1]));
5923
5924 exit_boot_info_free:
5925 dma_free_coherent(&ha->pdev->dev, size, buf, buf_dma);
5926 exit_boot_info:
5927 ha->pri_ddb_idx = ddb_index[0];
5928 ha->sec_ddb_idx = ddb_index[1];
5929 return ret;
5930 }
5931
5932 /**
5933 * qla4xxx_get_bidi_chap - Get a BIDI CHAP user and password
5934 * @ha: pointer to adapter structure
5935 * @username: CHAP username to be returned
5936 * @password: CHAP password to be returned
5937 *
5938 * If a boot entry has BIDI CHAP enabled then we need to set the BIDI CHAP
5939 * user and password in the sysfs entry in /sys/firmware/iscsi_boot#/.
5940 * So from the CHAP cache find the first BIDI CHAP entry and set it
5941 * to the boot record in sysfs.
5942 **/
5943 static int qla4xxx_get_bidi_chap(struct scsi_qla_host *ha, char *username,
5944 char *password)
5945 {
5946 int i, ret = -EINVAL;
5947 int max_chap_entries = 0;
5948 struct ql4_chap_table *chap_table;
5949
5950 if (is_qla80XX(ha))
5951 max_chap_entries = (ha->hw.flt_chap_size / 2) /
5952 sizeof(struct ql4_chap_table);
5953 else
5954 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
5955
5956 if (!ha->chap_list) {
5957 ql4_printk(KERN_ERR, ha, "Do not have CHAP table cache\n");
5958 return ret;
5959 }
5960
5961 mutex_lock(&ha->chap_sem);
5962 for (i = 0; i < max_chap_entries; i++) {
5963 chap_table = (struct ql4_chap_table *)ha->chap_list + i;
5964 if (chap_table->cookie !=
5965 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) {
5966 continue;
5967 }
5968
5969 if (chap_table->flags & BIT_7) /* local */
5970 continue;
5971
5972 if (!(chap_table->flags & BIT_6)) /* Not BIDI */
5973 continue;
5974
5975 strncpy(password, chap_table->secret, QL4_CHAP_MAX_SECRET_LEN);
5976 strncpy(username, chap_table->name, QL4_CHAP_MAX_NAME_LEN);
5977 ret = 0;
5978 break;
5979 }
5980 mutex_unlock(&ha->chap_sem);
5981
5982 return ret;
5983 }
5984
5985
5986 static int qla4xxx_get_boot_target(struct scsi_qla_host *ha,
5987 struct ql4_boot_session_info *boot_sess,
5988 uint16_t ddb_index)
5989 {
5990 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0];
5991 struct dev_db_entry *fw_ddb_entry;
5992 dma_addr_t fw_ddb_entry_dma;
5993 uint16_t idx;
5994 uint16_t options;
5995 int ret = QLA_SUCCESS;
5996
5997 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
5998 &fw_ddb_entry_dma, GFP_KERNEL);
5999 if (!fw_ddb_entry) {
6000 DEBUG2(ql4_printk(KERN_ERR, ha,
6001 "%s: Unable to allocate dma buffer.\n",
6002 __func__));
6003 ret = QLA_ERROR;
6004 return ret;
6005 }
6006
6007 if (qla4xxx_bootdb_by_index(ha, fw_ddb_entry,
6008 fw_ddb_entry_dma, ddb_index)) {
6009 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: No Flash DDB found at "
6010 "index [%d]\n", __func__, ddb_index));
6011 ret = QLA_ERROR;
6012 goto exit_boot_target;
6013 }
6014
6015 /* Update target name and IP from DDB */
6016 memcpy(boot_sess->target_name, fw_ddb_entry->iscsi_name,
6017 min(sizeof(boot_sess->target_name),
6018 sizeof(fw_ddb_entry->iscsi_name)));
6019
6020 options = le16_to_cpu(fw_ddb_entry->options);
6021 if (options & DDB_OPT_IPV6_DEVICE) {
6022 memcpy(&boot_conn->dest_ipaddr.ip_address,
6023 &fw_ddb_entry->ip_addr[0], IPv6_ADDR_LEN);
6024 } else {
6025 boot_conn->dest_ipaddr.ip_type = 0x1;
6026 memcpy(&boot_conn->dest_ipaddr.ip_address,
6027 &fw_ddb_entry->ip_addr[0], IP_ADDR_LEN);
6028 }
6029
6030 boot_conn->dest_port = le16_to_cpu(fw_ddb_entry->port);
6031
6032 /* update chap information */
6033 idx = __le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
6034
6035 if (BIT_7 & le16_to_cpu(fw_ddb_entry->iscsi_options)) {
6036
6037 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting chap\n"));
6038
6039 ret = qla4xxx_get_chap(ha, (char *)&boot_conn->chap.
6040 target_chap_name,
6041 (char *)&boot_conn->chap.target_secret,
6042 idx);
6043 if (ret) {
6044 ql4_printk(KERN_ERR, ha, "Failed to set chap\n");
6045 ret = QLA_ERROR;
6046 goto exit_boot_target;
6047 }
6048
6049 boot_conn->chap.target_chap_name_length = QL4_CHAP_MAX_NAME_LEN;
6050 boot_conn->chap.target_secret_length = QL4_CHAP_MAX_SECRET_LEN;
6051 }
6052
6053 if (BIT_4 & le16_to_cpu(fw_ddb_entry->iscsi_options)) {
6054
6055 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting BIDI chap\n"));
6056
6057 ret = qla4xxx_get_bidi_chap(ha,
6058 (char *)&boot_conn->chap.intr_chap_name,
6059 (char *)&boot_conn->chap.intr_secret);
6060
6061 if (ret) {
6062 ql4_printk(KERN_ERR, ha, "Failed to set BIDI chap\n");
6063 ret = QLA_ERROR;
6064 goto exit_boot_target;
6065 }
6066
6067 boot_conn->chap.intr_chap_name_length = QL4_CHAP_MAX_NAME_LEN;
6068 boot_conn->chap.intr_secret_length = QL4_CHAP_MAX_SECRET_LEN;
6069 }
6070
6071 exit_boot_target:
6072 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
6073 fw_ddb_entry, fw_ddb_entry_dma);
6074 return ret;
6075 }
6076
6077 static int qla4xxx_get_boot_info(struct scsi_qla_host *ha)
6078 {
6079 uint16_t ddb_index[2];
6080 int ret = QLA_ERROR;
6081 int rval;
6082
6083 memset(ddb_index, 0, sizeof(ddb_index));
6084 ddb_index[0] = 0xffff;
6085 ddb_index[1] = 0xffff;
6086 ret = get_fw_boot_info(ha, ddb_index);
6087 if (ret != QLA_SUCCESS) {
6088 DEBUG2(ql4_printk(KERN_INFO, ha,
6089 "%s: No boot target configured.\n", __func__));
6090 return ret;
6091 }
6092
6093 if (ql4xdisablesysfsboot)
6094 return QLA_SUCCESS;
6095
6096 if (ddb_index[0] == 0xffff)
6097 goto sec_target;
6098
6099 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_pri_sess),
6100 ddb_index[0]);
6101 if (rval != QLA_SUCCESS) {
6102 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary boot target not "
6103 "configured\n", __func__));
6104 } else
6105 ret = QLA_SUCCESS;
6106
6107 sec_target:
6108 if (ddb_index[1] == 0xffff)
6109 goto exit_get_boot_info;
6110
6111 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_sec_sess),
6112 ddb_index[1]);
6113 if (rval != QLA_SUCCESS) {
6114 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Secondary boot target not"
6115 " configured\n", __func__));
6116 } else
6117 ret = QLA_SUCCESS;
6118
6119 exit_get_boot_info:
6120 return ret;
6121 }
6122
6123 static int qla4xxx_setup_boot_info(struct scsi_qla_host *ha)
6124 {
6125 struct iscsi_boot_kobj *boot_kobj;
6126
6127 if (qla4xxx_get_boot_info(ha) != QLA_SUCCESS)
6128 return QLA_ERROR;
6129
6130 if (ql4xdisablesysfsboot) {
6131 ql4_printk(KERN_INFO, ha,
6132 "%s: syfsboot disabled - driver will trigger login "
6133 "and publish session for discovery .\n", __func__);
6134 return QLA_SUCCESS;
6135 }
6136
6137
6138 ha->boot_kset = iscsi_boot_create_host_kset(ha->host->host_no);
6139 if (!ha->boot_kset)
6140 goto kset_free;
6141
6142 if (!scsi_host_get(ha->host))
6143 goto kset_free;
6144 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 0, ha,
6145 qla4xxx_show_boot_tgt_pri_info,
6146 qla4xxx_tgt_get_attr_visibility,
6147 qla4xxx_boot_release);
6148 if (!boot_kobj)
6149 goto put_host;
6150
6151 if (!scsi_host_get(ha->host))
6152 goto kset_free;
6153 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 1, ha,
6154 qla4xxx_show_boot_tgt_sec_info,
6155 qla4xxx_tgt_get_attr_visibility,
6156 qla4xxx_boot_release);
6157 if (!boot_kobj)
6158 goto put_host;
6159
6160 if (!scsi_host_get(ha->host))
6161 goto kset_free;
6162 boot_kobj = iscsi_boot_create_initiator(ha->boot_kset, 0, ha,
6163 qla4xxx_show_boot_ini_info,
6164 qla4xxx_ini_get_attr_visibility,
6165 qla4xxx_boot_release);
6166 if (!boot_kobj)
6167 goto put_host;
6168
6169 if (!scsi_host_get(ha->host))
6170 goto kset_free;
6171 boot_kobj = iscsi_boot_create_ethernet(ha->boot_kset, 0, ha,
6172 qla4xxx_show_boot_eth_info,
6173 qla4xxx_eth_get_attr_visibility,
6174 qla4xxx_boot_release);
6175 if (!boot_kobj)
6176 goto put_host;
6177
6178 return QLA_SUCCESS;
6179
6180 put_host:
6181 scsi_host_put(ha->host);
6182 kset_free:
6183 iscsi_boot_destroy_kset(ha->boot_kset);
6184 return -ENOMEM;
6185 }
6186
6187
6188 static void qla4xxx_get_param_ddb(struct ddb_entry *ddb_entry,
6189 struct ql4_tuple_ddb *tddb)
6190 {
6191 struct scsi_qla_host *ha;
6192 struct iscsi_cls_session *cls_sess;
6193 struct iscsi_cls_conn *cls_conn;
6194 struct iscsi_session *sess;
6195 struct iscsi_conn *conn;
6196
6197 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
6198 ha = ddb_entry->ha;
6199 cls_sess = ddb_entry->sess;
6200 sess = cls_sess->dd_data;
6201 cls_conn = ddb_entry->conn;
6202 conn = cls_conn->dd_data;
6203
6204 tddb->tpgt = sess->tpgt;
6205 tddb->port = conn->persistent_port;
6206 strncpy(tddb->iscsi_name, sess->targetname, ISCSI_NAME_SIZE);
6207 strncpy(tddb->ip_addr, conn->persistent_address, DDB_IPADDR_LEN);
6208 }
6209
6210 static void qla4xxx_convert_param_ddb(struct dev_db_entry *fw_ddb_entry,
6211 struct ql4_tuple_ddb *tddb,
6212 uint8_t *flash_isid)
6213 {
6214 uint16_t options = 0;
6215
6216 tddb->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
6217 memcpy(&tddb->iscsi_name[0], &fw_ddb_entry->iscsi_name[0],
6218 min(sizeof(tddb->iscsi_name), sizeof(fw_ddb_entry->iscsi_name)));
6219
6220 options = le16_to_cpu(fw_ddb_entry->options);
6221 if (options & DDB_OPT_IPV6_DEVICE)
6222 sprintf(tddb->ip_addr, "%pI6", fw_ddb_entry->ip_addr);
6223 else
6224 sprintf(tddb->ip_addr, "%pI4", fw_ddb_entry->ip_addr);
6225
6226 tddb->port = le16_to_cpu(fw_ddb_entry->port);
6227
6228 if (flash_isid == NULL)
6229 memcpy(&tddb->isid[0], &fw_ddb_entry->isid[0],
6230 sizeof(tddb->isid));
6231 else
6232 memcpy(&tddb->isid[0], &flash_isid[0], sizeof(tddb->isid));
6233 }
6234
6235 static int qla4xxx_compare_tuple_ddb(struct scsi_qla_host *ha,
6236 struct ql4_tuple_ddb *old_tddb,
6237 struct ql4_tuple_ddb *new_tddb,
6238 uint8_t is_isid_compare)
6239 {
6240 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name))
6241 return QLA_ERROR;
6242
6243 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr))
6244 return QLA_ERROR;
6245
6246 if (old_tddb->port != new_tddb->port)
6247 return QLA_ERROR;
6248
6249 /* For multi sessions, driver generates the ISID, so do not compare
6250 * ISID in reset path since it would be a comparison between the
6251 * driver generated ISID and firmware generated ISID. This could
6252 * lead to adding duplicated DDBs in the list as driver generated
6253 * ISID would not match firmware generated ISID.
6254 */
6255 if (is_isid_compare) {
6256 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: old ISID [%02x%02x%02x"
6257 "%02x%02x%02x] New ISID [%02x%02x%02x%02x%02x%02x]\n",
6258 __func__, old_tddb->isid[5], old_tddb->isid[4],
6259 old_tddb->isid[3], old_tddb->isid[2], old_tddb->isid[1],
6260 old_tddb->isid[0], new_tddb->isid[5], new_tddb->isid[4],
6261 new_tddb->isid[3], new_tddb->isid[2], new_tddb->isid[1],
6262 new_tddb->isid[0]));
6263
6264 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0],
6265 sizeof(old_tddb->isid)))
6266 return QLA_ERROR;
6267 }
6268
6269 DEBUG2(ql4_printk(KERN_INFO, ha,
6270 "Match Found, fw[%d,%d,%s,%s], [%d,%d,%s,%s]",
6271 old_tddb->port, old_tddb->tpgt, old_tddb->ip_addr,
6272 old_tddb->iscsi_name, new_tddb->port, new_tddb->tpgt,
6273 new_tddb->ip_addr, new_tddb->iscsi_name));
6274
6275 return QLA_SUCCESS;
6276 }
6277
6278 static int qla4xxx_is_session_exists(struct scsi_qla_host *ha,
6279 struct dev_db_entry *fw_ddb_entry,
6280 uint32_t *index)
6281 {
6282 struct ddb_entry *ddb_entry;
6283 struct ql4_tuple_ddb *fw_tddb = NULL;
6284 struct ql4_tuple_ddb *tmp_tddb = NULL;
6285 int idx;
6286 int ret = QLA_ERROR;
6287
6288 fw_tddb = vzalloc(sizeof(*fw_tddb));
6289 if (!fw_tddb) {
6290 DEBUG2(ql4_printk(KERN_WARNING, ha,
6291 "Memory Allocation failed.\n"));
6292 ret = QLA_SUCCESS;
6293 goto exit_check;
6294 }
6295
6296 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
6297 if (!tmp_tddb) {
6298 DEBUG2(ql4_printk(KERN_WARNING, ha,
6299 "Memory Allocation failed.\n"));
6300 ret = QLA_SUCCESS;
6301 goto exit_check;
6302 }
6303
6304 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL);
6305
6306 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
6307 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
6308 if (ddb_entry == NULL)
6309 continue;
6310
6311 qla4xxx_get_param_ddb(ddb_entry, tmp_tddb);
6312 if (!qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, false)) {
6313 ret = QLA_SUCCESS; /* found */
6314 if (index != NULL)
6315 *index = idx;
6316 goto exit_check;
6317 }
6318 }
6319
6320 exit_check:
6321 if (fw_tddb)
6322 vfree(fw_tddb);
6323 if (tmp_tddb)
6324 vfree(tmp_tddb);
6325 return ret;
6326 }
6327
6328 /**
6329 * qla4xxx_check_existing_isid - check if target with same isid exist
6330 * in target list
6331 * @list_nt: list of target
6332 * @isid: isid to check
6333 *
6334 * This routine return QLA_SUCCESS if target with same isid exist
6335 **/
6336 static int qla4xxx_check_existing_isid(struct list_head *list_nt, uint8_t *isid)
6337 {
6338 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp;
6339 struct dev_db_entry *fw_ddb_entry;
6340
6341 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
6342 fw_ddb_entry = &nt_ddb_idx->fw_ddb;
6343
6344 if (memcmp(&fw_ddb_entry->isid[0], &isid[0],
6345 sizeof(nt_ddb_idx->fw_ddb.isid)) == 0) {
6346 return QLA_SUCCESS;
6347 }
6348 }
6349 return QLA_ERROR;
6350 }
6351
6352 /**
6353 * qla4xxx_update_isid - compare ddbs and updated isid
6354 * @ha: Pointer to host adapter structure.
6355 * @list_nt: list of nt target
6356 * @fw_ddb_entry: firmware ddb entry
6357 *
6358 * This routine update isid if ddbs have same iqn, same isid and
6359 * different IP addr.
6360 * Return QLA_SUCCESS if isid is updated.
6361 **/
6362 static int qla4xxx_update_isid(struct scsi_qla_host *ha,
6363 struct list_head *list_nt,
6364 struct dev_db_entry *fw_ddb_entry)
6365 {
6366 uint8_t base_value, i;
6367
6368 base_value = fw_ddb_entry->isid[1] & 0x1f;
6369 for (i = 0; i < 8; i++) {
6370 fw_ddb_entry->isid[1] = (base_value | (i << 5));
6371 if (qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid))
6372 break;
6373 }
6374
6375 if (!qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid))
6376 return QLA_ERROR;
6377
6378 return QLA_SUCCESS;
6379 }
6380
6381 /**
6382 * qla4xxx_should_update_isid - check if isid need to update
6383 * @ha: Pointer to host adapter structure.
6384 * @old_tddb: ddb tuple
6385 * @new_tddb: ddb tuple
6386 *
6387 * Return QLA_SUCCESS if different IP, different PORT, same iqn,
6388 * same isid
6389 **/
6390 static int qla4xxx_should_update_isid(struct scsi_qla_host *ha,
6391 struct ql4_tuple_ddb *old_tddb,
6392 struct ql4_tuple_ddb *new_tddb)
6393 {
6394 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr) == 0) {
6395 /* Same ip */
6396 if (old_tddb->port == new_tddb->port)
6397 return QLA_ERROR;
6398 }
6399
6400 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name))
6401 /* different iqn */
6402 return QLA_ERROR;
6403
6404 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0],
6405 sizeof(old_tddb->isid)))
6406 /* different isid */
6407 return QLA_ERROR;
6408
6409 return QLA_SUCCESS;
6410 }
6411
6412 /**
6413 * qla4xxx_is_flash_ddb_exists - check if fw_ddb_entry already exists in list_nt
6414 * @ha: Pointer to host adapter structure.
6415 * @list_nt: list of nt target.
6416 * @fw_ddb_entry: firmware ddb entry.
6417 *
6418 * This routine check if fw_ddb_entry already exists in list_nt to avoid
6419 * duplicate ddb in list_nt.
6420 * Return QLA_SUCCESS if duplicate ddb exit in list_nl.
6421 * Note: This function also update isid of DDB if required.
6422 **/
6423
6424 static int qla4xxx_is_flash_ddb_exists(struct scsi_qla_host *ha,
6425 struct list_head *list_nt,
6426 struct dev_db_entry *fw_ddb_entry)
6427 {
6428 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp;
6429 struct ql4_tuple_ddb *fw_tddb = NULL;
6430 struct ql4_tuple_ddb *tmp_tddb = NULL;
6431 int rval, ret = QLA_ERROR;
6432
6433 fw_tddb = vzalloc(sizeof(*fw_tddb));
6434 if (!fw_tddb) {
6435 DEBUG2(ql4_printk(KERN_WARNING, ha,
6436 "Memory Allocation failed.\n"));
6437 ret = QLA_SUCCESS;
6438 goto exit_check;
6439 }
6440
6441 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
6442 if (!tmp_tddb) {
6443 DEBUG2(ql4_printk(KERN_WARNING, ha,
6444 "Memory Allocation failed.\n"));
6445 ret = QLA_SUCCESS;
6446 goto exit_check;
6447 }
6448
6449 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL);
6450
6451 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
6452 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb,
6453 nt_ddb_idx->flash_isid);
6454 ret = qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, true);
6455 /* found duplicate ddb */
6456 if (ret == QLA_SUCCESS)
6457 goto exit_check;
6458 }
6459
6460 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
6461 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb, NULL);
6462
6463 ret = qla4xxx_should_update_isid(ha, tmp_tddb, fw_tddb);
6464 if (ret == QLA_SUCCESS) {
6465 rval = qla4xxx_update_isid(ha, list_nt, fw_ddb_entry);
6466 if (rval == QLA_SUCCESS)
6467 ret = QLA_ERROR;
6468 else
6469 ret = QLA_SUCCESS;
6470
6471 goto exit_check;
6472 }
6473 }
6474
6475 exit_check:
6476 if (fw_tddb)
6477 vfree(fw_tddb);
6478 if (tmp_tddb)
6479 vfree(tmp_tddb);
6480 return ret;
6481 }
6482
6483 static void qla4xxx_free_ddb_list(struct list_head *list_ddb)
6484 {
6485 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
6486
6487 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
6488 list_del_init(&ddb_idx->list);
6489 vfree(ddb_idx);
6490 }
6491 }
6492
6493 static struct iscsi_endpoint *qla4xxx_get_ep_fwdb(struct scsi_qla_host *ha,
6494 struct dev_db_entry *fw_ddb_entry)
6495 {
6496 struct iscsi_endpoint *ep;
6497 struct sockaddr_in *addr;
6498 struct sockaddr_in6 *addr6;
6499 struct sockaddr *t_addr;
6500 struct sockaddr_storage *dst_addr;
6501 char *ip;
6502
6503 /* TODO: need to destroy on unload iscsi_endpoint*/
6504 dst_addr = vmalloc(sizeof(*dst_addr));
6505 if (!dst_addr)
6506 return NULL;
6507
6508 if (fw_ddb_entry->options & DDB_OPT_IPV6_DEVICE) {
6509 t_addr = (struct sockaddr *)dst_addr;
6510 t_addr->sa_family = AF_INET6;
6511 addr6 = (struct sockaddr_in6 *)dst_addr;
6512 ip = (char *)&addr6->sin6_addr;
6513 memcpy(ip, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN);
6514 addr6->sin6_port = htons(le16_to_cpu(fw_ddb_entry->port));
6515
6516 } else {
6517 t_addr = (struct sockaddr *)dst_addr;
6518 t_addr->sa_family = AF_INET;
6519 addr = (struct sockaddr_in *)dst_addr;
6520 ip = (char *)&addr->sin_addr;
6521 memcpy(ip, fw_ddb_entry->ip_addr, IP_ADDR_LEN);
6522 addr->sin_port = htons(le16_to_cpu(fw_ddb_entry->port));
6523 }
6524
6525 ep = qla4xxx_ep_connect(ha->host, (struct sockaddr *)dst_addr, 0);
6526 vfree(dst_addr);
6527 return ep;
6528 }
6529
6530 static int qla4xxx_verify_boot_idx(struct scsi_qla_host *ha, uint16_t idx)
6531 {
6532 if (ql4xdisablesysfsboot)
6533 return QLA_SUCCESS;
6534 if (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx)
6535 return QLA_ERROR;
6536 return QLA_SUCCESS;
6537 }
6538
6539 static void qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha,
6540 struct ddb_entry *ddb_entry,
6541 uint16_t idx)
6542 {
6543 uint16_t def_timeout;
6544
6545 ddb_entry->ddb_type = FLASH_DDB;
6546 ddb_entry->fw_ddb_index = INVALID_ENTRY;
6547 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE;
6548 ddb_entry->ha = ha;
6549 ddb_entry->unblock_sess = qla4xxx_unblock_flash_ddb;
6550 ddb_entry->ddb_change = qla4xxx_flash_ddb_change;
6551 ddb_entry->chap_tbl_idx = INVALID_ENTRY;
6552
6553 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY);
6554 atomic_set(&ddb_entry->relogin_timer, 0);
6555 atomic_set(&ddb_entry->relogin_retry_count, 0);
6556 def_timeout = le16_to_cpu(ddb_entry->fw_ddb_entry.def_timeout);
6557 ddb_entry->default_relogin_timeout =
6558 (def_timeout > LOGIN_TOV) && (def_timeout < LOGIN_TOV * 10) ?
6559 def_timeout : LOGIN_TOV;
6560 ddb_entry->default_time2wait =
6561 le16_to_cpu(ddb_entry->fw_ddb_entry.iscsi_def_time2wait);
6562
6563 if (ql4xdisablesysfsboot &&
6564 (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx))
6565 set_bit(DF_BOOT_TGT, &ddb_entry->flags);
6566 }
6567
6568 static void qla4xxx_wait_for_ip_configuration(struct scsi_qla_host *ha)
6569 {
6570 uint32_t idx = 0;
6571 uint32_t ip_idx[IP_ADDR_COUNT] = {0, 1, 2, 3}; /* 4 IP interfaces */
6572 uint32_t sts[MBOX_REG_COUNT];
6573 uint32_t ip_state;
6574 unsigned long wtime;
6575 int ret;
6576
6577 wtime = jiffies + (HZ * IP_CONFIG_TOV);
6578 do {
6579 for (idx = 0; idx < IP_ADDR_COUNT; idx++) {
6580 if (ip_idx[idx] == -1)
6581 continue;
6582
6583 ret = qla4xxx_get_ip_state(ha, 0, ip_idx[idx], sts);
6584
6585 if (ret == QLA_ERROR) {
6586 ip_idx[idx] = -1;
6587 continue;
6588 }
6589
6590 ip_state = (sts[1] & IP_STATE_MASK) >> IP_STATE_SHIFT;
6591
6592 DEBUG2(ql4_printk(KERN_INFO, ha,
6593 "Waiting for IP state for idx = %d, state = 0x%x\n",
6594 ip_idx[idx], ip_state));
6595 if (ip_state == IP_ADDRSTATE_UNCONFIGURED ||
6596 ip_state == IP_ADDRSTATE_INVALID ||
6597 ip_state == IP_ADDRSTATE_PREFERRED ||
6598 ip_state == IP_ADDRSTATE_DEPRICATED ||
6599 ip_state == IP_ADDRSTATE_DISABLING)
6600 ip_idx[idx] = -1;
6601 }
6602
6603 /* Break if all IP states checked */
6604 if ((ip_idx[0] == -1) &&
6605 (ip_idx[1] == -1) &&
6606 (ip_idx[2] == -1) &&
6607 (ip_idx[3] == -1))
6608 break;
6609 schedule_timeout_uninterruptible(HZ);
6610 } while (time_after(wtime, jiffies));
6611 }
6612
6613 static int qla4xxx_cmp_fw_stentry(struct dev_db_entry *fw_ddb_entry,
6614 struct dev_db_entry *flash_ddb_entry)
6615 {
6616 uint16_t options = 0;
6617 size_t ip_len = IP_ADDR_LEN;
6618
6619 options = le16_to_cpu(fw_ddb_entry->options);
6620 if (options & DDB_OPT_IPV6_DEVICE)
6621 ip_len = IPv6_ADDR_LEN;
6622
6623 if (memcmp(fw_ddb_entry->ip_addr, flash_ddb_entry->ip_addr, ip_len))
6624 return QLA_ERROR;
6625
6626 if (memcmp(&fw_ddb_entry->isid[0], &flash_ddb_entry->isid[0],
6627 sizeof(fw_ddb_entry->isid)))
6628 return QLA_ERROR;
6629
6630 if (memcmp(&fw_ddb_entry->port, &flash_ddb_entry->port,
6631 sizeof(fw_ddb_entry->port)))
6632 return QLA_ERROR;
6633
6634 return QLA_SUCCESS;
6635 }
6636
6637 static int qla4xxx_find_flash_st_idx(struct scsi_qla_host *ha,
6638 struct dev_db_entry *fw_ddb_entry,
6639 uint32_t fw_idx, uint32_t *flash_index)
6640 {
6641 struct dev_db_entry *flash_ddb_entry;
6642 dma_addr_t flash_ddb_entry_dma;
6643 uint32_t idx = 0;
6644 int max_ddbs;
6645 int ret = QLA_ERROR, status;
6646
6647 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
6648 MAX_DEV_DB_ENTRIES;
6649
6650 flash_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
6651 &flash_ddb_entry_dma);
6652 if (flash_ddb_entry == NULL || fw_ddb_entry == NULL) {
6653 ql4_printk(KERN_ERR, ha, "Out of memory\n");
6654 goto exit_find_st_idx;
6655 }
6656
6657 status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry,
6658 flash_ddb_entry_dma, fw_idx);
6659 if (status == QLA_SUCCESS) {
6660 status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry);
6661 if (status == QLA_SUCCESS) {
6662 *flash_index = fw_idx;
6663 ret = QLA_SUCCESS;
6664 goto exit_find_st_idx;
6665 }
6666 }
6667
6668 for (idx = 0; idx < max_ddbs; idx++) {
6669 status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry,
6670 flash_ddb_entry_dma, idx);
6671 if (status == QLA_ERROR)
6672 continue;
6673
6674 status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry);
6675 if (status == QLA_SUCCESS) {
6676 *flash_index = idx;
6677 ret = QLA_SUCCESS;
6678 goto exit_find_st_idx;
6679 }
6680 }
6681
6682 if (idx == max_ddbs)
6683 ql4_printk(KERN_ERR, ha, "Failed to find ST [%d] in flash\n",
6684 fw_idx);
6685
6686 exit_find_st_idx:
6687 if (flash_ddb_entry)
6688 dma_pool_free(ha->fw_ddb_dma_pool, flash_ddb_entry,
6689 flash_ddb_entry_dma);
6690
6691 return ret;
6692 }
6693
6694 static void qla4xxx_build_st_list(struct scsi_qla_host *ha,
6695 struct list_head *list_st)
6696 {
6697 struct qla_ddb_index *st_ddb_idx;
6698 int max_ddbs;
6699 int fw_idx_size;
6700 struct dev_db_entry *fw_ddb_entry;
6701 dma_addr_t fw_ddb_dma;
6702 int ret;
6703 uint32_t idx = 0, next_idx = 0;
6704 uint32_t state = 0, conn_err = 0;
6705 uint32_t flash_index = -1;
6706 uint16_t conn_id = 0;
6707
6708 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
6709 &fw_ddb_dma);
6710 if (fw_ddb_entry == NULL) {
6711 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
6712 goto exit_st_list;
6713 }
6714
6715 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
6716 MAX_DEV_DB_ENTRIES;
6717 fw_idx_size = sizeof(struct qla_ddb_index);
6718
6719 for (idx = 0; idx < max_ddbs; idx = next_idx) {
6720 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
6721 NULL, &next_idx, &state,
6722 &conn_err, NULL, &conn_id);
6723 if (ret == QLA_ERROR)
6724 break;
6725
6726 /* Ignore DDB if invalid state (unassigned) */
6727 if (state == DDB_DS_UNASSIGNED)
6728 goto continue_next_st;
6729
6730 /* Check if ST, add to the list_st */
6731 if (strlen((char *) fw_ddb_entry->iscsi_name) != 0)
6732 goto continue_next_st;
6733
6734 st_ddb_idx = vzalloc(fw_idx_size);
6735 if (!st_ddb_idx)
6736 break;
6737
6738 ret = qla4xxx_find_flash_st_idx(ha, fw_ddb_entry, idx,
6739 &flash_index);
6740 if (ret == QLA_ERROR) {
6741 ql4_printk(KERN_ERR, ha,
6742 "No flash entry for ST at idx [%d]\n", idx);
6743 st_ddb_idx->flash_ddb_idx = idx;
6744 } else {
6745 ql4_printk(KERN_INFO, ha,
6746 "ST at idx [%d] is stored at flash [%d]\n",
6747 idx, flash_index);
6748 st_ddb_idx->flash_ddb_idx = flash_index;
6749 }
6750
6751 st_ddb_idx->fw_ddb_idx = idx;
6752
6753 list_add_tail(&st_ddb_idx->list, list_st);
6754 continue_next_st:
6755 if (next_idx == 0)
6756 break;
6757 }
6758
6759 exit_st_list:
6760 if (fw_ddb_entry)
6761 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
6762 }
6763
6764 /**
6765 * qla4xxx_remove_failed_ddb - Remove inactive or failed ddb from list
6766 * @ha: pointer to adapter structure
6767 * @list_ddb: List from which failed ddb to be removed
6768 *
6769 * Iterate over the list of DDBs and find and remove DDBs that are either in
6770 * no connection active state or failed state
6771 **/
6772 static void qla4xxx_remove_failed_ddb(struct scsi_qla_host *ha,
6773 struct list_head *list_ddb)
6774 {
6775 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
6776 uint32_t next_idx = 0;
6777 uint32_t state = 0, conn_err = 0;
6778 int ret;
6779
6780 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
6781 ret = qla4xxx_get_fwddb_entry(ha, ddb_idx->fw_ddb_idx,
6782 NULL, 0, NULL, &next_idx, &state,
6783 &conn_err, NULL, NULL);
6784 if (ret == QLA_ERROR)
6785 continue;
6786
6787 if (state == DDB_DS_NO_CONNECTION_ACTIVE ||
6788 state == DDB_DS_SESSION_FAILED) {
6789 list_del_init(&ddb_idx->list);
6790 vfree(ddb_idx);
6791 }
6792 }
6793 }
6794
6795 static void qla4xxx_update_sess_disc_idx(struct scsi_qla_host *ha,
6796 struct ddb_entry *ddb_entry,
6797 struct dev_db_entry *fw_ddb_entry)
6798 {
6799 struct iscsi_cls_session *cls_sess;
6800 struct iscsi_session *sess;
6801 uint32_t max_ddbs = 0;
6802 uint16_t ddb_link = -1;
6803
6804 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
6805 MAX_DEV_DB_ENTRIES;
6806
6807 cls_sess = ddb_entry->sess;
6808 sess = cls_sess->dd_data;
6809
6810 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
6811 if (ddb_link < max_ddbs)
6812 sess->discovery_parent_idx = ddb_link;
6813 else
6814 sess->discovery_parent_idx = DDB_NO_LINK;
6815 }
6816
6817 static int qla4xxx_sess_conn_setup(struct scsi_qla_host *ha,
6818 struct dev_db_entry *fw_ddb_entry,
6819 int is_reset, uint16_t idx)
6820 {
6821 struct iscsi_cls_session *cls_sess;
6822 struct iscsi_session *sess;
6823 struct iscsi_cls_conn *cls_conn;
6824 struct iscsi_endpoint *ep;
6825 uint16_t cmds_max = 32;
6826 uint16_t conn_id = 0;
6827 uint32_t initial_cmdsn = 0;
6828 int ret = QLA_SUCCESS;
6829
6830 struct ddb_entry *ddb_entry = NULL;
6831
6832 /* Create session object, with INVALID_ENTRY,
6833 * the targer_id would get set when we issue the login
6834 */
6835 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, ha->host,
6836 cmds_max, sizeof(struct ddb_entry),
6837 sizeof(struct ql4_task_data),
6838 initial_cmdsn, INVALID_ENTRY);
6839 if (!cls_sess) {
6840 ret = QLA_ERROR;
6841 goto exit_setup;
6842 }
6843
6844 /*
6845 * so calling module_put function to decrement the
6846 * reference count.
6847 **/
6848 module_put(qla4xxx_iscsi_transport.owner);
6849 sess = cls_sess->dd_data;
6850 ddb_entry = sess->dd_data;
6851 ddb_entry->sess = cls_sess;
6852
6853 cls_sess->recovery_tmo = ql4xsess_recovery_tmo;
6854 memcpy(&ddb_entry->fw_ddb_entry, fw_ddb_entry,
6855 sizeof(struct dev_db_entry));
6856
6857 qla4xxx_setup_flash_ddb_entry(ha, ddb_entry, idx);
6858
6859 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), conn_id);
6860
6861 if (!cls_conn) {
6862 ret = QLA_ERROR;
6863 goto exit_setup;
6864 }
6865
6866 ddb_entry->conn = cls_conn;
6867
6868 /* Setup ep, for displaying attributes in sysfs */
6869 ep = qla4xxx_get_ep_fwdb(ha, fw_ddb_entry);
6870 if (ep) {
6871 ep->conn = cls_conn;
6872 cls_conn->ep = ep;
6873 } else {
6874 DEBUG2(ql4_printk(KERN_ERR, ha, "Unable to get ep\n"));
6875 ret = QLA_ERROR;
6876 goto exit_setup;
6877 }
6878
6879 /* Update sess/conn params */
6880 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn);
6881 qla4xxx_update_sess_disc_idx(ha, ddb_entry, fw_ddb_entry);
6882
6883 if (is_reset == RESET_ADAPTER) {
6884 iscsi_block_session(cls_sess);
6885 /* Use the relogin path to discover new devices
6886 * by short-circuting the logic of setting
6887 * timer to relogin - instead set the flags
6888 * to initiate login right away.
6889 */
6890 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
6891 set_bit(DF_RELOGIN, &ddb_entry->flags);
6892 }
6893
6894 exit_setup:
6895 return ret;
6896 }
6897
6898 static void qla4xxx_update_fw_ddb_link(struct scsi_qla_host *ha,
6899 struct list_head *list_ddb,
6900 struct dev_db_entry *fw_ddb_entry)
6901 {
6902 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
6903 uint16_t ddb_link;
6904
6905 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
6906
6907 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
6908 if (ddb_idx->fw_ddb_idx == ddb_link) {
6909 DEBUG2(ql4_printk(KERN_INFO, ha,
6910 "Updating NT parent idx from [%d] to [%d]\n",
6911 ddb_link, ddb_idx->flash_ddb_idx));
6912 fw_ddb_entry->ddb_link =
6913 cpu_to_le16(ddb_idx->flash_ddb_idx);
6914 return;
6915 }
6916 }
6917 }
6918
6919 static void qla4xxx_build_nt_list(struct scsi_qla_host *ha,
6920 struct list_head *list_nt,
6921 struct list_head *list_st,
6922 int is_reset)
6923 {
6924 struct dev_db_entry *fw_ddb_entry;
6925 struct ddb_entry *ddb_entry = NULL;
6926 dma_addr_t fw_ddb_dma;
6927 int max_ddbs;
6928 int fw_idx_size;
6929 int ret;
6930 uint32_t idx = 0, next_idx = 0;
6931 uint32_t state = 0, conn_err = 0;
6932 uint32_t ddb_idx = -1;
6933 uint16_t conn_id = 0;
6934 uint16_t ddb_link = -1;
6935 struct qla_ddb_index *nt_ddb_idx;
6936
6937 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
6938 &fw_ddb_dma);
6939 if (fw_ddb_entry == NULL) {
6940 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
6941 goto exit_nt_list;
6942 }
6943 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
6944 MAX_DEV_DB_ENTRIES;
6945 fw_idx_size = sizeof(struct qla_ddb_index);
6946
6947 for (idx = 0; idx < max_ddbs; idx = next_idx) {
6948 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
6949 NULL, &next_idx, &state,
6950 &conn_err, NULL, &conn_id);
6951 if (ret == QLA_ERROR)
6952 break;
6953
6954 if (qla4xxx_verify_boot_idx(ha, idx) != QLA_SUCCESS)
6955 goto continue_next_nt;
6956
6957 /* Check if NT, then add to list it */
6958 if (strlen((char *) fw_ddb_entry->iscsi_name) == 0)
6959 goto continue_next_nt;
6960
6961 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
6962 if (ddb_link < max_ddbs)
6963 qla4xxx_update_fw_ddb_link(ha, list_st, fw_ddb_entry);
6964
6965 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE ||
6966 state == DDB_DS_SESSION_FAILED) &&
6967 (is_reset == INIT_ADAPTER))
6968 goto continue_next_nt;
6969
6970 DEBUG2(ql4_printk(KERN_INFO, ha,
6971 "Adding DDB to session = 0x%x\n", idx));
6972
6973 if (is_reset == INIT_ADAPTER) {
6974 nt_ddb_idx = vmalloc(fw_idx_size);
6975 if (!nt_ddb_idx)
6976 break;
6977
6978 nt_ddb_idx->fw_ddb_idx = idx;
6979
6980 /* Copy original isid as it may get updated in function
6981 * qla4xxx_update_isid(). We need original isid in
6982 * function qla4xxx_compare_tuple_ddb to find duplicate
6983 * target */
6984 memcpy(&nt_ddb_idx->flash_isid[0],
6985 &fw_ddb_entry->isid[0],
6986 sizeof(nt_ddb_idx->flash_isid));
6987
6988 ret = qla4xxx_is_flash_ddb_exists(ha, list_nt,
6989 fw_ddb_entry);
6990 if (ret == QLA_SUCCESS) {
6991 /* free nt_ddb_idx and do not add to list_nt */
6992 vfree(nt_ddb_idx);
6993 goto continue_next_nt;
6994 }
6995
6996 /* Copy updated isid */
6997 memcpy(&nt_ddb_idx->fw_ddb, fw_ddb_entry,
6998 sizeof(struct dev_db_entry));
6999
7000 list_add_tail(&nt_ddb_idx->list, list_nt);
7001 } else if (is_reset == RESET_ADAPTER) {
7002 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry,
7003 &ddb_idx);
7004 if (ret == QLA_SUCCESS) {
7005 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha,
7006 ddb_idx);
7007 if (ddb_entry != NULL)
7008 qla4xxx_update_sess_disc_idx(ha,
7009 ddb_entry,
7010 fw_ddb_entry);
7011 goto continue_next_nt;
7012 }
7013 }
7014
7015 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, is_reset, idx);
7016 if (ret == QLA_ERROR)
7017 goto exit_nt_list;
7018
7019 continue_next_nt:
7020 if (next_idx == 0)
7021 break;
7022 }
7023
7024 exit_nt_list:
7025 if (fw_ddb_entry)
7026 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
7027 }
7028
7029 static void qla4xxx_build_new_nt_list(struct scsi_qla_host *ha,
7030 struct list_head *list_nt,
7031 uint16_t target_id)
7032 {
7033 struct dev_db_entry *fw_ddb_entry;
7034 dma_addr_t fw_ddb_dma;
7035 int max_ddbs;
7036 int fw_idx_size;
7037 int ret;
7038 uint32_t idx = 0, next_idx = 0;
7039 uint32_t state = 0, conn_err = 0;
7040 uint16_t conn_id = 0;
7041 struct qla_ddb_index *nt_ddb_idx;
7042
7043 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
7044 &fw_ddb_dma);
7045 if (fw_ddb_entry == NULL) {
7046 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
7047 goto exit_new_nt_list;
7048 }
7049 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
7050 MAX_DEV_DB_ENTRIES;
7051 fw_idx_size = sizeof(struct qla_ddb_index);
7052
7053 for (idx = 0; idx < max_ddbs; idx = next_idx) {
7054 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
7055 NULL, &next_idx, &state,
7056 &conn_err, NULL, &conn_id);
7057 if (ret == QLA_ERROR)
7058 break;
7059
7060 /* Check if NT, then add it to list */
7061 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0)
7062 goto continue_next_new_nt;
7063
7064 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE))
7065 goto continue_next_new_nt;
7066
7067 DEBUG2(ql4_printk(KERN_INFO, ha,
7068 "Adding DDB to session = 0x%x\n", idx));
7069
7070 nt_ddb_idx = vmalloc(fw_idx_size);
7071 if (!nt_ddb_idx)
7072 break;
7073
7074 nt_ddb_idx->fw_ddb_idx = idx;
7075
7076 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL);
7077 if (ret == QLA_SUCCESS) {
7078 /* free nt_ddb_idx and do not add to list_nt */
7079 vfree(nt_ddb_idx);
7080 goto continue_next_new_nt;
7081 }
7082
7083 if (target_id < max_ddbs)
7084 fw_ddb_entry->ddb_link = cpu_to_le16(target_id);
7085
7086 list_add_tail(&nt_ddb_idx->list, list_nt);
7087
7088 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER,
7089 idx);
7090 if (ret == QLA_ERROR)
7091 goto exit_new_nt_list;
7092
7093 continue_next_new_nt:
7094 if (next_idx == 0)
7095 break;
7096 }
7097
7098 exit_new_nt_list:
7099 if (fw_ddb_entry)
7100 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
7101 }
7102
7103 /**
7104 * qla4xxx_sysfs_ddb_is_non_persistent - check for non-persistence of ddb entry
7105 * @dev: dev associated with the sysfs entry
7106 * @data: pointer to flashnode session object
7107 *
7108 * Returns:
7109 * 1: if flashnode entry is non-persistent
7110 * 0: if flashnode entry is persistent
7111 **/
7112 static int qla4xxx_sysfs_ddb_is_non_persistent(struct device *dev, void *data)
7113 {
7114 struct iscsi_bus_flash_session *fnode_sess;
7115
7116 if (!iscsi_flashnode_bus_match(dev, NULL))
7117 return 0;
7118
7119 fnode_sess = iscsi_dev_to_flash_session(dev);
7120
7121 return (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT);
7122 }
7123
7124 /**
7125 * qla4xxx_sysfs_ddb_tgt_create - Create sysfs entry for target
7126 * @ha: pointer to host
7127 * @fw_ddb_entry: flash ddb data
7128 * @idx: target index
7129 * @user: if set then this call is made from userland else from kernel
7130 *
7131 * Returns:
7132 * On sucess: QLA_SUCCESS
7133 * On failure: QLA_ERROR
7134 *
7135 * This create separate sysfs entries for session and connection attributes of
7136 * the given fw ddb entry.
7137 * If this is invoked as a result of a userspace call then the entry is marked
7138 * as nonpersistent using flash_state field.
7139 **/
7140 static int qla4xxx_sysfs_ddb_tgt_create(struct scsi_qla_host *ha,
7141 struct dev_db_entry *fw_ddb_entry,
7142 uint16_t *idx, int user)
7143 {
7144 struct iscsi_bus_flash_session *fnode_sess = NULL;
7145 struct iscsi_bus_flash_conn *fnode_conn = NULL;
7146 int rc = QLA_ERROR;
7147
7148 fnode_sess = iscsi_create_flashnode_sess(ha->host, *idx,
7149 &qla4xxx_iscsi_transport, 0);
7150 if (!fnode_sess) {
7151 ql4_printk(KERN_ERR, ha,
7152 "%s: Unable to create session sysfs entry for flashnode %d of host%lu\n",
7153 __func__, *idx, ha->host_no);
7154 goto exit_tgt_create;
7155 }
7156
7157 fnode_conn = iscsi_create_flashnode_conn(ha->host, fnode_sess,
7158 &qla4xxx_iscsi_transport, 0);
7159 if (!fnode_conn) {
7160 ql4_printk(KERN_ERR, ha,
7161 "%s: Unable to create conn sysfs entry for flashnode %d of host%lu\n",
7162 __func__, *idx, ha->host_no);
7163 goto free_sess;
7164 }
7165
7166 if (user) {
7167 fnode_sess->flash_state = DEV_DB_NON_PERSISTENT;
7168 } else {
7169 fnode_sess->flash_state = DEV_DB_PERSISTENT;
7170
7171 if (*idx == ha->pri_ddb_idx || *idx == ha->sec_ddb_idx)
7172 fnode_sess->is_boot_target = 1;
7173 else
7174 fnode_sess->is_boot_target = 0;
7175 }
7176
7177 rc = qla4xxx_copy_from_fwddb_param(fnode_sess, fnode_conn,
7178 fw_ddb_entry);
7179
7180 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n",
7181 __func__, fnode_sess->dev.kobj.name);
7182
7183 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n",
7184 __func__, fnode_conn->dev.kobj.name);
7185
7186 return QLA_SUCCESS;
7187
7188 free_sess:
7189 iscsi_destroy_flashnode_sess(fnode_sess);
7190
7191 exit_tgt_create:
7192 return QLA_ERROR;
7193 }
7194
7195 /**
7196 * qla4xxx_sysfs_ddb_add - Add new ddb entry in flash
7197 * @shost: pointer to host
7198 * @buf: type of ddb entry (ipv4/ipv6)
7199 * @len: length of buf
7200 *
7201 * This creates new ddb entry in the flash by finding first free index and
7202 * storing default ddb there. And then create sysfs entry for the new ddb entry.
7203 **/
7204 static int qla4xxx_sysfs_ddb_add(struct Scsi_Host *shost, const char *buf,
7205 int len)
7206 {
7207 struct scsi_qla_host *ha = to_qla_host(shost);
7208 struct dev_db_entry *fw_ddb_entry = NULL;
7209 dma_addr_t fw_ddb_entry_dma;
7210 struct device *dev;
7211 uint16_t idx = 0;
7212 uint16_t max_ddbs = 0;
7213 uint32_t options = 0;
7214 uint32_t rval = QLA_ERROR;
7215
7216 if (strncasecmp(PORTAL_TYPE_IPV4, buf, 4) &&
7217 strncasecmp(PORTAL_TYPE_IPV6, buf, 4)) {
7218 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Invalid portal type\n",
7219 __func__));
7220 goto exit_ddb_add;
7221 }
7222
7223 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES :
7224 MAX_DEV_DB_ENTRIES;
7225
7226 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7227 &fw_ddb_entry_dma, GFP_KERNEL);
7228 if (!fw_ddb_entry) {
7229 DEBUG2(ql4_printk(KERN_ERR, ha,
7230 "%s: Unable to allocate dma buffer\n",
7231 __func__));
7232 goto exit_ddb_add;
7233 }
7234
7235 dev = iscsi_find_flashnode_sess(ha->host, NULL,
7236 qla4xxx_sysfs_ddb_is_non_persistent);
7237 if (dev) {
7238 ql4_printk(KERN_ERR, ha,
7239 "%s: A non-persistent entry %s found\n",
7240 __func__, dev->kobj.name);
7241 put_device(dev);
7242 goto exit_ddb_add;
7243 }
7244
7245 /* Index 0 and 1 are reserved for boot target entries */
7246 for (idx = 2; idx < max_ddbs; idx++) {
7247 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry,
7248 fw_ddb_entry_dma, idx))
7249 break;
7250 }
7251
7252 if (idx == max_ddbs)
7253 goto exit_ddb_add;
7254
7255 if (!strncasecmp("ipv6", buf, 4))
7256 options |= IPV6_DEFAULT_DDB_ENTRY;
7257
7258 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
7259 if (rval == QLA_ERROR)
7260 goto exit_ddb_add;
7261
7262 rval = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 1);
7263
7264 exit_ddb_add:
7265 if (fw_ddb_entry)
7266 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7267 fw_ddb_entry, fw_ddb_entry_dma);
7268 if (rval == QLA_SUCCESS)
7269 return idx;
7270 else
7271 return -EIO;
7272 }
7273
7274 /**
7275 * qla4xxx_sysfs_ddb_apply - write the target ddb contents to Flash
7276 * @fnode_sess: pointer to session attrs of flash ddb entry
7277 * @fnode_conn: pointer to connection attrs of flash ddb entry
7278 *
7279 * This writes the contents of target ddb buffer to Flash with a valid cookie
7280 * value in order to make the ddb entry persistent.
7281 **/
7282 static int qla4xxx_sysfs_ddb_apply(struct iscsi_bus_flash_session *fnode_sess,
7283 struct iscsi_bus_flash_conn *fnode_conn)
7284 {
7285 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7286 struct scsi_qla_host *ha = to_qla_host(shost);
7287 uint32_t dev_db_start_offset = FLASH_OFFSET_DB_INFO;
7288 struct dev_db_entry *fw_ddb_entry = NULL;
7289 dma_addr_t fw_ddb_entry_dma;
7290 uint32_t options = 0;
7291 int rval = 0;
7292
7293 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7294 &fw_ddb_entry_dma, GFP_KERNEL);
7295 if (!fw_ddb_entry) {
7296 DEBUG2(ql4_printk(KERN_ERR, ha,
7297 "%s: Unable to allocate dma buffer\n",
7298 __func__));
7299 rval = -ENOMEM;
7300 goto exit_ddb_apply;
7301 }
7302
7303 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7304 options |= IPV6_DEFAULT_DDB_ENTRY;
7305
7306 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
7307 if (rval == QLA_ERROR)
7308 goto exit_ddb_apply;
7309
7310 dev_db_start_offset += (fnode_sess->target_id *
7311 sizeof(*fw_ddb_entry));
7312
7313 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry);
7314 fw_ddb_entry->cookie = DDB_VALID_COOKIE;
7315
7316 rval = qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset,
7317 sizeof(*fw_ddb_entry), FLASH_OPT_RMW_COMMIT);
7318
7319 if (rval == QLA_SUCCESS) {
7320 fnode_sess->flash_state = DEV_DB_PERSISTENT;
7321 ql4_printk(KERN_INFO, ha,
7322 "%s: flash node %u of host %lu written to flash\n",
7323 __func__, fnode_sess->target_id, ha->host_no);
7324 } else {
7325 rval = -EIO;
7326 ql4_printk(KERN_ERR, ha,
7327 "%s: Error while writing flash node %u of host %lu to flash\n",
7328 __func__, fnode_sess->target_id, ha->host_no);
7329 }
7330
7331 exit_ddb_apply:
7332 if (fw_ddb_entry)
7333 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7334 fw_ddb_entry, fw_ddb_entry_dma);
7335 return rval;
7336 }
7337
7338 static ssize_t qla4xxx_sysfs_ddb_conn_open(struct scsi_qla_host *ha,
7339 struct dev_db_entry *fw_ddb_entry,
7340 uint16_t idx)
7341 {
7342 struct dev_db_entry *ddb_entry = NULL;
7343 dma_addr_t ddb_entry_dma;
7344 unsigned long wtime;
7345 uint32_t mbx_sts = 0;
7346 uint32_t state = 0, conn_err = 0;
7347 uint16_t tmo = 0;
7348 int ret = 0;
7349
7350 ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*ddb_entry),
7351 &ddb_entry_dma, GFP_KERNEL);
7352 if (!ddb_entry) {
7353 DEBUG2(ql4_printk(KERN_ERR, ha,
7354 "%s: Unable to allocate dma buffer\n",
7355 __func__));
7356 return QLA_ERROR;
7357 }
7358
7359 memcpy(ddb_entry, fw_ddb_entry, sizeof(*ddb_entry));
7360
7361 ret = qla4xxx_set_ddb_entry(ha, idx, ddb_entry_dma, &mbx_sts);
7362 if (ret != QLA_SUCCESS) {
7363 DEBUG2(ql4_printk(KERN_ERR, ha,
7364 "%s: Unable to set ddb entry for index %d\n",
7365 __func__, idx));
7366 goto exit_ddb_conn_open;
7367 }
7368
7369 qla4xxx_conn_open(ha, idx);
7370
7371 /* To ensure that sendtargets is done, wait for at least 12 secs */
7372 tmo = ((ha->def_timeout > LOGIN_TOV) &&
7373 (ha->def_timeout < LOGIN_TOV * 10) ?
7374 ha->def_timeout : LOGIN_TOV);
7375
7376 DEBUG2(ql4_printk(KERN_INFO, ha,
7377 "Default time to wait for login to ddb %d\n", tmo));
7378
7379 wtime = jiffies + (HZ * tmo);
7380 do {
7381 ret = qla4xxx_get_fwddb_entry(ha, idx, NULL, 0, NULL,
7382 NULL, &state, &conn_err, NULL,
7383 NULL);
7384 if (ret == QLA_ERROR)
7385 continue;
7386
7387 if (state == DDB_DS_NO_CONNECTION_ACTIVE ||
7388 state == DDB_DS_SESSION_FAILED)
7389 break;
7390
7391 schedule_timeout_uninterruptible(HZ / 10);
7392 } while (time_after(wtime, jiffies));
7393
7394 exit_ddb_conn_open:
7395 if (ddb_entry)
7396 dma_free_coherent(&ha->pdev->dev, sizeof(*ddb_entry),
7397 ddb_entry, ddb_entry_dma);
7398 return ret;
7399 }
7400
7401 static int qla4xxx_ddb_login_st(struct scsi_qla_host *ha,
7402 struct dev_db_entry *fw_ddb_entry,
7403 uint16_t target_id)
7404 {
7405 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
7406 struct list_head list_nt;
7407 uint16_t ddb_index;
7408 int ret = 0;
7409
7410 if (test_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags)) {
7411 ql4_printk(KERN_WARNING, ha,
7412 "%s: A discovery already in progress!\n", __func__);
7413 return QLA_ERROR;
7414 }
7415
7416 INIT_LIST_HEAD(&list_nt);
7417
7418 set_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags);
7419
7420 ret = qla4xxx_get_ddb_index(ha, &ddb_index);
7421 if (ret == QLA_ERROR)
7422 goto exit_login_st_clr_bit;
7423
7424 ret = qla4xxx_sysfs_ddb_conn_open(ha, fw_ddb_entry, ddb_index);
7425 if (ret == QLA_ERROR)
7426 goto exit_login_st;
7427
7428 qla4xxx_build_new_nt_list(ha, &list_nt, target_id);
7429
7430 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, &list_nt, list) {
7431 list_del_init(&ddb_idx->list);
7432 qla4xxx_clear_ddb_entry(ha, ddb_idx->fw_ddb_idx);
7433 vfree(ddb_idx);
7434 }
7435
7436 exit_login_st:
7437 if (qla4xxx_clear_ddb_entry(ha, ddb_index) == QLA_ERROR) {
7438 ql4_printk(KERN_ERR, ha,
7439 "Unable to clear DDB index = 0x%x\n", ddb_index);
7440 }
7441
7442 clear_bit(ddb_index, ha->ddb_idx_map);
7443
7444 exit_login_st_clr_bit:
7445 clear_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags);
7446 return ret;
7447 }
7448
7449 static int qla4xxx_ddb_login_nt(struct scsi_qla_host *ha,
7450 struct dev_db_entry *fw_ddb_entry,
7451 uint16_t idx)
7452 {
7453 int ret = QLA_ERROR;
7454
7455 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL);
7456 if (ret != QLA_SUCCESS)
7457 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER,
7458 idx);
7459 else
7460 ret = -EPERM;
7461
7462 return ret;
7463 }
7464
7465 /**
7466 * qla4xxx_sysfs_ddb_login - Login to the specified target
7467 * @fnode_sess: pointer to session attrs of flash ddb entry
7468 * @fnode_conn: pointer to connection attrs of flash ddb entry
7469 *
7470 * This logs in to the specified target
7471 **/
7472 static int qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess,
7473 struct iscsi_bus_flash_conn *fnode_conn)
7474 {
7475 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7476 struct scsi_qla_host *ha = to_qla_host(shost);
7477 struct dev_db_entry *fw_ddb_entry = NULL;
7478 dma_addr_t fw_ddb_entry_dma;
7479 uint32_t options = 0;
7480 int ret = 0;
7481
7482 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT) {
7483 ql4_printk(KERN_ERR, ha,
7484 "%s: Target info is not persistent\n", __func__);
7485 ret = -EIO;
7486 goto exit_ddb_login;
7487 }
7488
7489 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7490 &fw_ddb_entry_dma, GFP_KERNEL);
7491 if (!fw_ddb_entry) {
7492 DEBUG2(ql4_printk(KERN_ERR, ha,
7493 "%s: Unable to allocate dma buffer\n",
7494 __func__));
7495 ret = -ENOMEM;
7496 goto exit_ddb_login;
7497 }
7498
7499 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7500 options |= IPV6_DEFAULT_DDB_ENTRY;
7501
7502 ret = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
7503 if (ret == QLA_ERROR)
7504 goto exit_ddb_login;
7505
7506 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry);
7507 fw_ddb_entry->cookie = DDB_VALID_COOKIE;
7508
7509 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0)
7510 ret = qla4xxx_ddb_login_st(ha, fw_ddb_entry,
7511 fnode_sess->target_id);
7512 else
7513 ret = qla4xxx_ddb_login_nt(ha, fw_ddb_entry,
7514 fnode_sess->target_id);
7515
7516 if (ret > 0)
7517 ret = -EIO;
7518
7519 exit_ddb_login:
7520 if (fw_ddb_entry)
7521 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7522 fw_ddb_entry, fw_ddb_entry_dma);
7523 return ret;
7524 }
7525
7526 /**
7527 * qla4xxx_sysfs_ddb_logout_sid - Logout session for the specified target
7528 * @cls_sess: pointer to session to be logged out
7529 *
7530 * This performs session log out from the specified target
7531 **/
7532 static int qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess)
7533 {
7534 struct iscsi_session *sess;
7535 struct ddb_entry *ddb_entry = NULL;
7536 struct scsi_qla_host *ha;
7537 struct dev_db_entry *fw_ddb_entry = NULL;
7538 dma_addr_t fw_ddb_entry_dma;
7539 unsigned long flags;
7540 unsigned long wtime;
7541 uint32_t ddb_state;
7542 int options;
7543 int ret = 0;
7544
7545 sess = cls_sess->dd_data;
7546 ddb_entry = sess->dd_data;
7547 ha = ddb_entry->ha;
7548
7549 if (ddb_entry->ddb_type != FLASH_DDB) {
7550 ql4_printk(KERN_ERR, ha, "%s: Not a flash node session\n",
7551 __func__);
7552 ret = -ENXIO;
7553 goto exit_ddb_logout;
7554 }
7555
7556 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) {
7557 ql4_printk(KERN_ERR, ha,
7558 "%s: Logout from boot target entry is not permitted.\n",
7559 __func__);
7560 ret = -EPERM;
7561 goto exit_ddb_logout;
7562 }
7563
7564 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7565 &fw_ddb_entry_dma, GFP_KERNEL);
7566 if (!fw_ddb_entry) {
7567 ql4_printk(KERN_ERR, ha,
7568 "%s: Unable to allocate dma buffer\n", __func__);
7569 ret = -ENOMEM;
7570 goto exit_ddb_logout;
7571 }
7572
7573 if (test_and_set_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags))
7574 goto ddb_logout_init;
7575
7576 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
7577 fw_ddb_entry, fw_ddb_entry_dma,
7578 NULL, NULL, &ddb_state, NULL,
7579 NULL, NULL);
7580 if (ret == QLA_ERROR)
7581 goto ddb_logout_init;
7582
7583 if (ddb_state == DDB_DS_SESSION_ACTIVE)
7584 goto ddb_logout_init;
7585
7586 /* wait until next relogin is triggered using DF_RELOGIN and
7587 * clear DF_RELOGIN to avoid invocation of further relogin
7588 */
7589 wtime = jiffies + (HZ * RELOGIN_TOV);
7590 do {
7591 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags))
7592 goto ddb_logout_init;
7593
7594 schedule_timeout_uninterruptible(HZ);
7595 } while ((time_after(wtime, jiffies)));
7596
7597 ddb_logout_init:
7598 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY);
7599 atomic_set(&ddb_entry->relogin_timer, 0);
7600
7601 options = LOGOUT_OPTION_CLOSE_SESSION;
7602 qla4xxx_session_logout_ddb(ha, ddb_entry, options);
7603
7604 memset(fw_ddb_entry, 0, sizeof(*fw_ddb_entry));
7605 wtime = jiffies + (HZ * LOGOUT_TOV);
7606 do {
7607 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
7608 fw_ddb_entry, fw_ddb_entry_dma,
7609 NULL, NULL, &ddb_state, NULL,
7610 NULL, NULL);
7611 if (ret == QLA_ERROR)
7612 goto ddb_logout_clr_sess;
7613
7614 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) ||
7615 (ddb_state == DDB_DS_SESSION_FAILED))
7616 goto ddb_logout_clr_sess;
7617
7618 schedule_timeout_uninterruptible(HZ);
7619 } while ((time_after(wtime, jiffies)));
7620
7621 ddb_logout_clr_sess:
7622 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
7623 /*
7624 * we have decremented the reference count of the driver
7625 * when we setup the session to have the driver unload
7626 * to be seamless without actually destroying the
7627 * session
7628 **/
7629 try_module_get(qla4xxx_iscsi_transport.owner);
7630 iscsi_destroy_endpoint(ddb_entry->conn->ep);
7631
7632 spin_lock_irqsave(&ha->hardware_lock, flags);
7633 qla4xxx_free_ddb(ha, ddb_entry);
7634 clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map);
7635 spin_unlock_irqrestore(&ha->hardware_lock, flags);
7636
7637 iscsi_session_teardown(ddb_entry->sess);
7638
7639 clear_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags);
7640 ret = QLA_SUCCESS;
7641
7642 exit_ddb_logout:
7643 if (fw_ddb_entry)
7644 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7645 fw_ddb_entry, fw_ddb_entry_dma);
7646 return ret;
7647 }
7648
7649 /**
7650 * qla4xxx_sysfs_ddb_logout - Logout from the specified target
7651 * @fnode_sess: pointer to session attrs of flash ddb entry
7652 * @fnode_conn: pointer to connection attrs of flash ddb entry
7653 *
7654 * This performs log out from the specified target
7655 **/
7656 static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess,
7657 struct iscsi_bus_flash_conn *fnode_conn)
7658 {
7659 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7660 struct scsi_qla_host *ha = to_qla_host(shost);
7661 struct ql4_tuple_ddb *flash_tddb = NULL;
7662 struct ql4_tuple_ddb *tmp_tddb = NULL;
7663 struct dev_db_entry *fw_ddb_entry = NULL;
7664 struct ddb_entry *ddb_entry = NULL;
7665 dma_addr_t fw_ddb_dma;
7666 uint32_t next_idx = 0;
7667 uint32_t state = 0, conn_err = 0;
7668 uint16_t conn_id = 0;
7669 int idx, index;
7670 int status, ret = 0;
7671
7672 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
7673 &fw_ddb_dma);
7674 if (fw_ddb_entry == NULL) {
7675 ql4_printk(KERN_ERR, ha, "%s:Out of memory\n", __func__);
7676 ret = -ENOMEM;
7677 goto exit_ddb_logout;
7678 }
7679
7680 flash_tddb = vzalloc(sizeof(*flash_tddb));
7681 if (!flash_tddb) {
7682 ql4_printk(KERN_WARNING, ha,
7683 "%s:Memory Allocation failed.\n", __func__);
7684 ret = -ENOMEM;
7685 goto exit_ddb_logout;
7686 }
7687
7688 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
7689 if (!tmp_tddb) {
7690 ql4_printk(KERN_WARNING, ha,
7691 "%s:Memory Allocation failed.\n", __func__);
7692 ret = -ENOMEM;
7693 goto exit_ddb_logout;
7694 }
7695
7696 if (!fnode_sess->targetname) {
7697 ql4_printk(KERN_ERR, ha,
7698 "%s:Cannot logout from SendTarget entry\n",
7699 __func__);
7700 ret = -EPERM;
7701 goto exit_ddb_logout;
7702 }
7703
7704 if (fnode_sess->is_boot_target) {
7705 ql4_printk(KERN_ERR, ha,
7706 "%s: Logout from boot target entry is not permitted.\n",
7707 __func__);
7708 ret = -EPERM;
7709 goto exit_ddb_logout;
7710 }
7711
7712 strncpy(flash_tddb->iscsi_name, fnode_sess->targetname,
7713 ISCSI_NAME_SIZE);
7714
7715 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7716 sprintf(flash_tddb->ip_addr, "%pI6", fnode_conn->ipaddress);
7717 else
7718 sprintf(flash_tddb->ip_addr, "%pI4", fnode_conn->ipaddress);
7719
7720 flash_tddb->tpgt = fnode_sess->tpgt;
7721 flash_tddb->port = fnode_conn->port;
7722
7723 COPY_ISID(flash_tddb->isid, fnode_sess->isid);
7724
7725 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
7726 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
7727 if (ddb_entry == NULL)
7728 continue;
7729
7730 if (ddb_entry->ddb_type != FLASH_DDB)
7731 continue;
7732
7733 index = ddb_entry->sess->target_id;
7734 status = qla4xxx_get_fwddb_entry(ha, index, fw_ddb_entry,
7735 fw_ddb_dma, NULL, &next_idx,
7736 &state, &conn_err, NULL,
7737 &conn_id);
7738 if (status == QLA_ERROR) {
7739 ret = -ENOMEM;
7740 break;
7741 }
7742
7743 qla4xxx_convert_param_ddb(fw_ddb_entry, tmp_tddb, NULL);
7744
7745 status = qla4xxx_compare_tuple_ddb(ha, flash_tddb, tmp_tddb,
7746 true);
7747 if (status == QLA_SUCCESS) {
7748 ret = qla4xxx_sysfs_ddb_logout_sid(ddb_entry->sess);
7749 break;
7750 }
7751 }
7752
7753 if (idx == MAX_DDB_ENTRIES)
7754 ret = -ESRCH;
7755
7756 exit_ddb_logout:
7757 if (flash_tddb)
7758 vfree(flash_tddb);
7759 if (tmp_tddb)
7760 vfree(tmp_tddb);
7761 if (fw_ddb_entry)
7762 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
7763
7764 return ret;
7765 }
7766
7767 static int
7768 qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session *fnode_sess,
7769 int param, char *buf)
7770 {
7771 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7772 struct scsi_qla_host *ha = to_qla_host(shost);
7773 struct iscsi_bus_flash_conn *fnode_conn;
7774 struct ql4_chap_table chap_tbl;
7775 struct device *dev;
7776 int parent_type;
7777 int rc = 0;
7778
7779 dev = iscsi_find_flashnode_conn(fnode_sess);
7780 if (!dev)
7781 return -EIO;
7782
7783 fnode_conn = iscsi_dev_to_flash_conn(dev);
7784
7785 switch (param) {
7786 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6:
7787 rc = sprintf(buf, "%u\n", fnode_conn->is_fw_assigned_ipv6);
7788 break;
7789 case ISCSI_FLASHNODE_PORTAL_TYPE:
7790 rc = sprintf(buf, "%s\n", fnode_sess->portal_type);
7791 break;
7792 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE:
7793 rc = sprintf(buf, "%u\n", fnode_sess->auto_snd_tgt_disable);
7794 break;
7795 case ISCSI_FLASHNODE_DISCOVERY_SESS:
7796 rc = sprintf(buf, "%u\n", fnode_sess->discovery_sess);
7797 break;
7798 case ISCSI_FLASHNODE_ENTRY_EN:
7799 rc = sprintf(buf, "%u\n", fnode_sess->entry_state);
7800 break;
7801 case ISCSI_FLASHNODE_HDR_DGST_EN:
7802 rc = sprintf(buf, "%u\n", fnode_conn->hdrdgst_en);
7803 break;
7804 case ISCSI_FLASHNODE_DATA_DGST_EN:
7805 rc = sprintf(buf, "%u\n", fnode_conn->datadgst_en);
7806 break;
7807 case ISCSI_FLASHNODE_IMM_DATA_EN:
7808 rc = sprintf(buf, "%u\n", fnode_sess->imm_data_en);
7809 break;
7810 case ISCSI_FLASHNODE_INITIAL_R2T_EN:
7811 rc = sprintf(buf, "%u\n", fnode_sess->initial_r2t_en);
7812 break;
7813 case ISCSI_FLASHNODE_DATASEQ_INORDER:
7814 rc = sprintf(buf, "%u\n", fnode_sess->dataseq_inorder_en);
7815 break;
7816 case ISCSI_FLASHNODE_PDU_INORDER:
7817 rc = sprintf(buf, "%u\n", fnode_sess->pdu_inorder_en);
7818 break;
7819 case ISCSI_FLASHNODE_CHAP_AUTH_EN:
7820 rc = sprintf(buf, "%u\n", fnode_sess->chap_auth_en);
7821 break;
7822 case ISCSI_FLASHNODE_SNACK_REQ_EN:
7823 rc = sprintf(buf, "%u\n", fnode_conn->snack_req_en);
7824 break;
7825 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN:
7826 rc = sprintf(buf, "%u\n", fnode_sess->discovery_logout_en);
7827 break;
7828 case ISCSI_FLASHNODE_BIDI_CHAP_EN:
7829 rc = sprintf(buf, "%u\n", fnode_sess->bidi_chap_en);
7830 break;
7831 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL:
7832 rc = sprintf(buf, "%u\n", fnode_sess->discovery_auth_optional);
7833 break;
7834 case ISCSI_FLASHNODE_ERL:
7835 rc = sprintf(buf, "%u\n", fnode_sess->erl);
7836 break;
7837 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT:
7838 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_stat);
7839 break;
7840 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE:
7841 rc = sprintf(buf, "%u\n", fnode_conn->tcp_nagle_disable);
7842 break;
7843 case ISCSI_FLASHNODE_TCP_WSF_DISABLE:
7844 rc = sprintf(buf, "%u\n", fnode_conn->tcp_wsf_disable);
7845 break;
7846 case ISCSI_FLASHNODE_TCP_TIMER_SCALE:
7847 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timer_scale);
7848 break;
7849 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN:
7850 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_en);
7851 break;
7852 case ISCSI_FLASHNODE_IP_FRAG_DISABLE:
7853 rc = sprintf(buf, "%u\n", fnode_conn->fragment_disable);
7854 break;
7855 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH:
7856 rc = sprintf(buf, "%u\n", fnode_conn->max_recv_dlength);
7857 break;
7858 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH:
7859 rc = sprintf(buf, "%u\n", fnode_conn->max_xmit_dlength);
7860 break;
7861 case ISCSI_FLASHNODE_FIRST_BURST:
7862 rc = sprintf(buf, "%u\n", fnode_sess->first_burst);
7863 break;
7864 case ISCSI_FLASHNODE_DEF_TIME2WAIT:
7865 rc = sprintf(buf, "%u\n", fnode_sess->time2wait);
7866 break;
7867 case ISCSI_FLASHNODE_DEF_TIME2RETAIN:
7868 rc = sprintf(buf, "%u\n", fnode_sess->time2retain);
7869 break;
7870 case ISCSI_FLASHNODE_MAX_R2T:
7871 rc = sprintf(buf, "%u\n", fnode_sess->max_r2t);
7872 break;
7873 case ISCSI_FLASHNODE_KEEPALIVE_TMO:
7874 rc = sprintf(buf, "%u\n", fnode_conn->keepalive_timeout);
7875 break;
7876 case ISCSI_FLASHNODE_ISID:
7877 rc = sprintf(buf, "%02x%02x%02x%02x%02x%02x\n",
7878 fnode_sess->isid[0], fnode_sess->isid[1],
7879 fnode_sess->isid[2], fnode_sess->isid[3],
7880 fnode_sess->isid[4], fnode_sess->isid[5]);
7881 break;
7882 case ISCSI_FLASHNODE_TSID:
7883 rc = sprintf(buf, "%u\n", fnode_sess->tsid);
7884 break;
7885 case ISCSI_FLASHNODE_PORT:
7886 rc = sprintf(buf, "%d\n", fnode_conn->port);
7887 break;
7888 case ISCSI_FLASHNODE_MAX_BURST:
7889 rc = sprintf(buf, "%u\n", fnode_sess->max_burst);
7890 break;
7891 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO:
7892 rc = sprintf(buf, "%u\n",
7893 fnode_sess->default_taskmgmt_timeout);
7894 break;
7895 case ISCSI_FLASHNODE_IPADDR:
7896 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7897 rc = sprintf(buf, "%pI6\n", fnode_conn->ipaddress);
7898 else
7899 rc = sprintf(buf, "%pI4\n", fnode_conn->ipaddress);
7900 break;
7901 case ISCSI_FLASHNODE_ALIAS:
7902 if (fnode_sess->targetalias)
7903 rc = sprintf(buf, "%s\n", fnode_sess->targetalias);
7904 else
7905 rc = sprintf(buf, "\n");
7906 break;
7907 case ISCSI_FLASHNODE_REDIRECT_IPADDR:
7908 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7909 rc = sprintf(buf, "%pI6\n",
7910 fnode_conn->redirect_ipaddr);
7911 else
7912 rc = sprintf(buf, "%pI4\n",
7913 fnode_conn->redirect_ipaddr);
7914 break;
7915 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE:
7916 rc = sprintf(buf, "%u\n", fnode_conn->max_segment_size);
7917 break;
7918 case ISCSI_FLASHNODE_LOCAL_PORT:
7919 rc = sprintf(buf, "%u\n", fnode_conn->local_port);
7920 break;
7921 case ISCSI_FLASHNODE_IPV4_TOS:
7922 rc = sprintf(buf, "%u\n", fnode_conn->ipv4_tos);
7923 break;
7924 case ISCSI_FLASHNODE_IPV6_TC:
7925 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7926 rc = sprintf(buf, "%u\n",
7927 fnode_conn->ipv6_traffic_class);
7928 else
7929 rc = sprintf(buf, "\n");
7930 break;
7931 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL:
7932 rc = sprintf(buf, "%u\n", fnode_conn->ipv6_flow_label);
7933 break;
7934 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6:
7935 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7936 rc = sprintf(buf, "%pI6\n",
7937 fnode_conn->link_local_ipv6_addr);
7938 else
7939 rc = sprintf(buf, "\n");
7940 break;
7941 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX:
7942 rc = sprintf(buf, "%u\n", fnode_sess->discovery_parent_idx);
7943 break;
7944 case ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE:
7945 if (fnode_sess->discovery_parent_type == DDB_ISNS)
7946 parent_type = ISCSI_DISC_PARENT_ISNS;
7947 else if (fnode_sess->discovery_parent_type == DDB_NO_LINK)
7948 parent_type = ISCSI_DISC_PARENT_UNKNOWN;
7949 else if (fnode_sess->discovery_parent_type < MAX_DDB_ENTRIES)
7950 parent_type = ISCSI_DISC_PARENT_SENDTGT;
7951 else
7952 parent_type = ISCSI_DISC_PARENT_UNKNOWN;
7953
7954 rc = sprintf(buf, "%s\n",
7955 iscsi_get_discovery_parent_name(parent_type));
7956 break;
7957 case ISCSI_FLASHNODE_NAME:
7958 if (fnode_sess->targetname)
7959 rc = sprintf(buf, "%s\n", fnode_sess->targetname);
7960 else
7961 rc = sprintf(buf, "\n");
7962 break;
7963 case ISCSI_FLASHNODE_TPGT:
7964 rc = sprintf(buf, "%u\n", fnode_sess->tpgt);
7965 break;
7966 case ISCSI_FLASHNODE_TCP_XMIT_WSF:
7967 rc = sprintf(buf, "%u\n", fnode_conn->tcp_xmit_wsf);
7968 break;
7969 case ISCSI_FLASHNODE_TCP_RECV_WSF:
7970 rc = sprintf(buf, "%u\n", fnode_conn->tcp_recv_wsf);
7971 break;
7972 case ISCSI_FLASHNODE_CHAP_OUT_IDX:
7973 rc = sprintf(buf, "%u\n", fnode_sess->chap_out_idx);
7974 break;
7975 case ISCSI_FLASHNODE_USERNAME:
7976 if (fnode_sess->chap_auth_en) {
7977 qla4xxx_get_uni_chap_at_index(ha,
7978 chap_tbl.name,
7979 chap_tbl.secret,
7980 fnode_sess->chap_out_idx);
7981 rc = sprintf(buf, "%s\n", chap_tbl.name);
7982 } else {
7983 rc = sprintf(buf, "\n");
7984 }
7985 break;
7986 case ISCSI_FLASHNODE_PASSWORD:
7987 if (fnode_sess->chap_auth_en) {
7988 qla4xxx_get_uni_chap_at_index(ha,
7989 chap_tbl.name,
7990 chap_tbl.secret,
7991 fnode_sess->chap_out_idx);
7992 rc = sprintf(buf, "%s\n", chap_tbl.secret);
7993 } else {
7994 rc = sprintf(buf, "\n");
7995 }
7996 break;
7997 case ISCSI_FLASHNODE_STATSN:
7998 rc = sprintf(buf, "%u\n", fnode_conn->statsn);
7999 break;
8000 case ISCSI_FLASHNODE_EXP_STATSN:
8001 rc = sprintf(buf, "%u\n", fnode_conn->exp_statsn);
8002 break;
8003 case ISCSI_FLASHNODE_IS_BOOT_TGT:
8004 rc = sprintf(buf, "%u\n", fnode_sess->is_boot_target);
8005 break;
8006 default:
8007 rc = -ENOSYS;
8008 break;
8009 }
8010
8011 put_device(dev);
8012 return rc;
8013 }
8014
8015 /**
8016 * qla4xxx_sysfs_ddb_set_param - Set parameter for firmware DDB entry
8017 * @fnode_sess: pointer to session attrs of flash ddb entry
8018 * @fnode_conn: pointer to connection attrs of flash ddb entry
8019 * @data: Parameters and their values to update
8020 * @len: len of data
8021 *
8022 * This sets the parameter of flash ddb entry and writes them to flash
8023 **/
8024 static int
8025 qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess,
8026 struct iscsi_bus_flash_conn *fnode_conn,
8027 void *data, int len)
8028 {
8029 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
8030 struct scsi_qla_host *ha = to_qla_host(shost);
8031 struct iscsi_flashnode_param_info *fnode_param;
8032 struct ql4_chap_table chap_tbl;
8033 struct nlattr *attr;
8034 uint16_t chap_out_idx = INVALID_ENTRY;
8035 int rc = QLA_ERROR;
8036 uint32_t rem = len;
8037
8038 memset((void *)&chap_tbl, 0, sizeof(chap_tbl));
8039 nla_for_each_attr(attr, data, len, rem) {
8040 fnode_param = nla_data(attr);
8041
8042 switch (fnode_param->param) {
8043 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6:
8044 fnode_conn->is_fw_assigned_ipv6 = fnode_param->value[0];
8045 break;
8046 case ISCSI_FLASHNODE_PORTAL_TYPE:
8047 memcpy(fnode_sess->portal_type, fnode_param->value,
8048 strlen(fnode_sess->portal_type));
8049 break;
8050 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE:
8051 fnode_sess->auto_snd_tgt_disable =
8052 fnode_param->value[0];
8053 break;
8054 case ISCSI_FLASHNODE_DISCOVERY_SESS:
8055 fnode_sess->discovery_sess = fnode_param->value[0];
8056 break;
8057 case ISCSI_FLASHNODE_ENTRY_EN:
8058 fnode_sess->entry_state = fnode_param->value[0];
8059 break;
8060 case ISCSI_FLASHNODE_HDR_DGST_EN:
8061 fnode_conn->hdrdgst_en = fnode_param->value[0];
8062 break;
8063 case ISCSI_FLASHNODE_DATA_DGST_EN:
8064 fnode_conn->datadgst_en = fnode_param->value[0];
8065 break;
8066 case ISCSI_FLASHNODE_IMM_DATA_EN:
8067 fnode_sess->imm_data_en = fnode_param->value[0];
8068 break;
8069 case ISCSI_FLASHNODE_INITIAL_R2T_EN:
8070 fnode_sess->initial_r2t_en = fnode_param->value[0];
8071 break;
8072 case ISCSI_FLASHNODE_DATASEQ_INORDER:
8073 fnode_sess->dataseq_inorder_en = fnode_param->value[0];
8074 break;
8075 case ISCSI_FLASHNODE_PDU_INORDER:
8076 fnode_sess->pdu_inorder_en = fnode_param->value[0];
8077 break;
8078 case ISCSI_FLASHNODE_CHAP_AUTH_EN:
8079 fnode_sess->chap_auth_en = fnode_param->value[0];
8080 /* Invalidate chap index if chap auth is disabled */
8081 if (!fnode_sess->chap_auth_en)
8082 fnode_sess->chap_out_idx = INVALID_ENTRY;
8083
8084 break;
8085 case ISCSI_FLASHNODE_SNACK_REQ_EN:
8086 fnode_conn->snack_req_en = fnode_param->value[0];
8087 break;
8088 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN:
8089 fnode_sess->discovery_logout_en = fnode_param->value[0];
8090 break;
8091 case ISCSI_FLASHNODE_BIDI_CHAP_EN:
8092 fnode_sess->bidi_chap_en = fnode_param->value[0];
8093 break;
8094 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL:
8095 fnode_sess->discovery_auth_optional =
8096 fnode_param->value[0];
8097 break;
8098 case ISCSI_FLASHNODE_ERL:
8099 fnode_sess->erl = fnode_param->value[0];
8100 break;
8101 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT:
8102 fnode_conn->tcp_timestamp_stat = fnode_param->value[0];
8103 break;
8104 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE:
8105 fnode_conn->tcp_nagle_disable = fnode_param->value[0];
8106 break;
8107 case ISCSI_FLASHNODE_TCP_WSF_DISABLE:
8108 fnode_conn->tcp_wsf_disable = fnode_param->value[0];
8109 break;
8110 case ISCSI_FLASHNODE_TCP_TIMER_SCALE:
8111 fnode_conn->tcp_timer_scale = fnode_param->value[0];
8112 break;
8113 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN:
8114 fnode_conn->tcp_timestamp_en = fnode_param->value[0];
8115 break;
8116 case ISCSI_FLASHNODE_IP_FRAG_DISABLE:
8117 fnode_conn->fragment_disable = fnode_param->value[0];
8118 break;
8119 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH:
8120 fnode_conn->max_recv_dlength =
8121 *(unsigned *)fnode_param->value;
8122 break;
8123 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH:
8124 fnode_conn->max_xmit_dlength =
8125 *(unsigned *)fnode_param->value;
8126 break;
8127 case ISCSI_FLASHNODE_FIRST_BURST:
8128 fnode_sess->first_burst =
8129 *(unsigned *)fnode_param->value;
8130 break;
8131 case ISCSI_FLASHNODE_DEF_TIME2WAIT:
8132 fnode_sess->time2wait = *(uint16_t *)fnode_param->value;
8133 break;
8134 case ISCSI_FLASHNODE_DEF_TIME2RETAIN:
8135 fnode_sess->time2retain =
8136 *(uint16_t *)fnode_param->value;
8137 break;
8138 case ISCSI_FLASHNODE_MAX_R2T:
8139 fnode_sess->max_r2t =
8140 *(uint16_t *)fnode_param->value;
8141 break;
8142 case ISCSI_FLASHNODE_KEEPALIVE_TMO:
8143 fnode_conn->keepalive_timeout =
8144 *(uint16_t *)fnode_param->value;
8145 break;
8146 case ISCSI_FLASHNODE_ISID:
8147 memcpy(fnode_sess->isid, fnode_param->value,
8148 sizeof(fnode_sess->isid));
8149 break;
8150 case ISCSI_FLASHNODE_TSID:
8151 fnode_sess->tsid = *(uint16_t *)fnode_param->value;
8152 break;
8153 case ISCSI_FLASHNODE_PORT:
8154 fnode_conn->port = *(uint16_t *)fnode_param->value;
8155 break;
8156 case ISCSI_FLASHNODE_MAX_BURST:
8157 fnode_sess->max_burst = *(unsigned *)fnode_param->value;
8158 break;
8159 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO:
8160 fnode_sess->default_taskmgmt_timeout =
8161 *(uint16_t *)fnode_param->value;
8162 break;
8163 case ISCSI_FLASHNODE_IPADDR:
8164 memcpy(fnode_conn->ipaddress, fnode_param->value,
8165 IPv6_ADDR_LEN);
8166 break;
8167 case ISCSI_FLASHNODE_ALIAS:
8168 rc = iscsi_switch_str_param(&fnode_sess->targetalias,
8169 (char *)fnode_param->value);
8170 break;
8171 case ISCSI_FLASHNODE_REDIRECT_IPADDR:
8172 memcpy(fnode_conn->redirect_ipaddr, fnode_param->value,
8173 IPv6_ADDR_LEN);
8174 break;
8175 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE:
8176 fnode_conn->max_segment_size =
8177 *(unsigned *)fnode_param->value;
8178 break;
8179 case ISCSI_FLASHNODE_LOCAL_PORT:
8180 fnode_conn->local_port =
8181 *(uint16_t *)fnode_param->value;
8182 break;
8183 case ISCSI_FLASHNODE_IPV4_TOS:
8184 fnode_conn->ipv4_tos = fnode_param->value[0];
8185 break;
8186 case ISCSI_FLASHNODE_IPV6_TC:
8187 fnode_conn->ipv6_traffic_class = fnode_param->value[0];
8188 break;
8189 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL:
8190 fnode_conn->ipv6_flow_label = fnode_param->value[0];
8191 break;
8192 case ISCSI_FLASHNODE_NAME:
8193 rc = iscsi_switch_str_param(&fnode_sess->targetname,
8194 (char *)fnode_param->value);
8195 break;
8196 case ISCSI_FLASHNODE_TPGT:
8197 fnode_sess->tpgt = *(uint16_t *)fnode_param->value;
8198 break;
8199 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6:
8200 memcpy(fnode_conn->link_local_ipv6_addr,
8201 fnode_param->value, IPv6_ADDR_LEN);
8202 break;
8203 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX:
8204 fnode_sess->discovery_parent_idx =
8205 *(uint16_t *)fnode_param->value;
8206 break;
8207 case ISCSI_FLASHNODE_TCP_XMIT_WSF:
8208 fnode_conn->tcp_xmit_wsf =
8209 *(uint8_t *)fnode_param->value;
8210 break;
8211 case ISCSI_FLASHNODE_TCP_RECV_WSF:
8212 fnode_conn->tcp_recv_wsf =
8213 *(uint8_t *)fnode_param->value;
8214 break;
8215 case ISCSI_FLASHNODE_STATSN:
8216 fnode_conn->statsn = *(uint32_t *)fnode_param->value;
8217 break;
8218 case ISCSI_FLASHNODE_EXP_STATSN:
8219 fnode_conn->exp_statsn =
8220 *(uint32_t *)fnode_param->value;
8221 break;
8222 case ISCSI_FLASHNODE_CHAP_OUT_IDX:
8223 chap_out_idx = *(uint16_t *)fnode_param->value;
8224 if (!qla4xxx_get_uni_chap_at_index(ha,
8225 chap_tbl.name,
8226 chap_tbl.secret,
8227 chap_out_idx)) {
8228 fnode_sess->chap_out_idx = chap_out_idx;
8229 /* Enable chap auth if chap index is valid */
8230 fnode_sess->chap_auth_en = QL4_PARAM_ENABLE;
8231 }
8232 break;
8233 default:
8234 ql4_printk(KERN_ERR, ha,
8235 "%s: No such sysfs attribute\n", __func__);
8236 rc = -ENOSYS;
8237 goto exit_set_param;
8238 }
8239 }
8240
8241 rc = qla4xxx_sysfs_ddb_apply(fnode_sess, fnode_conn);
8242
8243 exit_set_param:
8244 return rc;
8245 }
8246
8247 /**
8248 * qla4xxx_sysfs_ddb_delete - Delete firmware DDB entry
8249 * @fnode_sess: pointer to session attrs of flash ddb entry
8250 *
8251 * This invalidates the flash ddb entry at the given index
8252 **/
8253 static int qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess)
8254 {
8255 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
8256 struct scsi_qla_host *ha = to_qla_host(shost);
8257 uint32_t dev_db_start_offset;
8258 uint32_t dev_db_end_offset;
8259 struct dev_db_entry *fw_ddb_entry = NULL;
8260 dma_addr_t fw_ddb_entry_dma;
8261 uint16_t *ddb_cookie = NULL;
8262 size_t ddb_size = 0;
8263 void *pddb = NULL;
8264 int target_id;
8265 int rc = 0;
8266
8267 if (fnode_sess->is_boot_target) {
8268 rc = -EPERM;
8269 DEBUG2(ql4_printk(KERN_ERR, ha,
8270 "%s: Deletion of boot target entry is not permitted.\n",
8271 __func__));
8272 goto exit_ddb_del;
8273 }
8274
8275 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT)
8276 goto sysfs_ddb_del;
8277
8278 if (is_qla40XX(ha)) {
8279 dev_db_start_offset = FLASH_OFFSET_DB_INFO;
8280 dev_db_end_offset = FLASH_OFFSET_DB_END;
8281 dev_db_start_offset += (fnode_sess->target_id *
8282 sizeof(*fw_ddb_entry));
8283 ddb_size = sizeof(*fw_ddb_entry);
8284 } else {
8285 dev_db_start_offset = FLASH_RAW_ACCESS_ADDR +
8286 (ha->hw.flt_region_ddb << 2);
8287 /* flt_ddb_size is DDB table size for both ports
8288 * so divide it by 2 to calculate the offset for second port
8289 */
8290 if (ha->port_num == 1)
8291 dev_db_start_offset += (ha->hw.flt_ddb_size / 2);
8292
8293 dev_db_end_offset = dev_db_start_offset +
8294 (ha->hw.flt_ddb_size / 2);
8295
8296 dev_db_start_offset += (fnode_sess->target_id *
8297 sizeof(*fw_ddb_entry));
8298 dev_db_start_offset += offsetof(struct dev_db_entry, cookie);
8299
8300 ddb_size = sizeof(*ddb_cookie);
8301 }
8302
8303 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: start offset=%u, end offset=%u\n",
8304 __func__, dev_db_start_offset, dev_db_end_offset));
8305
8306 if (dev_db_start_offset > dev_db_end_offset) {
8307 rc = -EIO;
8308 DEBUG2(ql4_printk(KERN_ERR, ha, "%s:Invalid DDB index %u\n",
8309 __func__, fnode_sess->target_id));
8310 goto exit_ddb_del;
8311 }
8312
8313 pddb = dma_alloc_coherent(&ha->pdev->dev, ddb_size,
8314 &fw_ddb_entry_dma, GFP_KERNEL);
8315 if (!pddb) {
8316 rc = -ENOMEM;
8317 DEBUG2(ql4_printk(KERN_ERR, ha,
8318 "%s: Unable to allocate dma buffer\n",
8319 __func__));
8320 goto exit_ddb_del;
8321 }
8322
8323 if (is_qla40XX(ha)) {
8324 fw_ddb_entry = pddb;
8325 memset(fw_ddb_entry, 0, ddb_size);
8326 ddb_cookie = &fw_ddb_entry->cookie;
8327 } else {
8328 ddb_cookie = pddb;
8329 }
8330
8331 /* invalidate the cookie */
8332 *ddb_cookie = 0xFFEE;
8333 qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset,
8334 ddb_size, FLASH_OPT_RMW_COMMIT);
8335
8336 sysfs_ddb_del:
8337 target_id = fnode_sess->target_id;
8338 iscsi_destroy_flashnode_sess(fnode_sess);
8339 ql4_printk(KERN_INFO, ha,
8340 "%s: session and conn entries for flashnode %u of host %lu deleted\n",
8341 __func__, target_id, ha->host_no);
8342 exit_ddb_del:
8343 if (pddb)
8344 dma_free_coherent(&ha->pdev->dev, ddb_size, pddb,
8345 fw_ddb_entry_dma);
8346 return rc;
8347 }
8348
8349 /**
8350 * qla4xxx_sysfs_ddb_export - Create sysfs entries for firmware DDBs
8351 * @ha: pointer to adapter structure
8352 *
8353 * Export the firmware DDB for all send targets and normal targets to sysfs.
8354 **/
8355 static int qla4xxx_sysfs_ddb_export(struct scsi_qla_host *ha)
8356 {
8357 struct dev_db_entry *fw_ddb_entry = NULL;
8358 dma_addr_t fw_ddb_entry_dma;
8359 uint16_t max_ddbs;
8360 uint16_t idx = 0;
8361 int ret = QLA_SUCCESS;
8362
8363 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev,
8364 sizeof(*fw_ddb_entry),
8365 &fw_ddb_entry_dma, GFP_KERNEL);
8366 if (!fw_ddb_entry) {
8367 DEBUG2(ql4_printk(KERN_ERR, ha,
8368 "%s: Unable to allocate dma buffer\n",
8369 __func__));
8370 return -ENOMEM;
8371 }
8372
8373 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES :
8374 MAX_DEV_DB_ENTRIES;
8375
8376 for (idx = 0; idx < max_ddbs; idx++) {
8377 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry, fw_ddb_entry_dma,
8378 idx))
8379 continue;
8380
8381 ret = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 0);
8382 if (ret) {
8383 ret = -EIO;
8384 break;
8385 }
8386 }
8387
8388 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry,
8389 fw_ddb_entry_dma);
8390
8391 return ret;
8392 }
8393
8394 static void qla4xxx_sysfs_ddb_remove(struct scsi_qla_host *ha)
8395 {
8396 iscsi_destroy_all_flashnode(ha->host);
8397 }
8398
8399 /**
8400 * qla4xxx_build_ddb_list - Build ddb list and setup sessions
8401 * @ha: pointer to adapter structure
8402 * @is_reset: Is this init path or reset path
8403 *
8404 * Create a list of sendtargets (st) from firmware DDBs, issue send targets
8405 * using connection open, then create the list of normal targets (nt)
8406 * from firmware DDBs. Based on the list of nt setup session and connection
8407 * objects.
8408 **/
8409 void qla4xxx_build_ddb_list(struct scsi_qla_host *ha, int is_reset)
8410 {
8411 uint16_t tmo = 0;
8412 struct list_head list_st, list_nt;
8413 struct qla_ddb_index *st_ddb_idx, *st_ddb_idx_tmp;
8414 unsigned long wtime;
8415
8416 if (!test_bit(AF_LINK_UP, &ha->flags)) {
8417 set_bit(AF_BUILD_DDB_LIST, &ha->flags);
8418 ha->is_reset = is_reset;
8419 return;
8420 }
8421
8422 INIT_LIST_HEAD(&list_st);
8423 INIT_LIST_HEAD(&list_nt);
8424
8425 qla4xxx_build_st_list(ha, &list_st);
8426
8427 /* Before issuing conn open mbox, ensure all IPs states are configured
8428 * Note, conn open fails if IPs are not configured
8429 */
8430 qla4xxx_wait_for_ip_configuration(ha);
8431
8432 /* Go thru the STs and fire the sendtargets by issuing conn open mbx */
8433 list_for_each_entry_safe(st_ddb_idx, st_ddb_idx_tmp, &list_st, list) {
8434 qla4xxx_conn_open(ha, st_ddb_idx->fw_ddb_idx);
8435 }
8436
8437 /* Wait to ensure all sendtargets are done for min 12 sec wait */
8438 tmo = ((ha->def_timeout > LOGIN_TOV) &&
8439 (ha->def_timeout < LOGIN_TOV * 10) ?
8440 ha->def_timeout : LOGIN_TOV);
8441
8442 DEBUG2(ql4_printk(KERN_INFO, ha,
8443 "Default time to wait for build ddb %d\n", tmo));
8444
8445 wtime = jiffies + (HZ * tmo);
8446 do {
8447 if (list_empty(&list_st))
8448 break;
8449
8450 qla4xxx_remove_failed_ddb(ha, &list_st);
8451 schedule_timeout_uninterruptible(HZ / 10);
8452 } while (time_after(wtime, jiffies));
8453
8454
8455 qla4xxx_build_nt_list(ha, &list_nt, &list_st, is_reset);
8456
8457 qla4xxx_free_ddb_list(&list_st);
8458 qla4xxx_free_ddb_list(&list_nt);
8459
8460 qla4xxx_free_ddb_index(ha);
8461 }
8462
8463 /**
8464 * qla4xxx_wait_login_resp_boot_tgt - Wait for iSCSI boot target login
8465 * response.
8466 * @ha: pointer to adapter structure
8467 *
8468 * When the boot entry is normal iSCSI target then DF_BOOT_TGT flag will be
8469 * set in DDB and we will wait for login response of boot targets during
8470 * probe.
8471 **/
8472 static void qla4xxx_wait_login_resp_boot_tgt(struct scsi_qla_host *ha)
8473 {
8474 struct ddb_entry *ddb_entry;
8475 struct dev_db_entry *fw_ddb_entry = NULL;
8476 dma_addr_t fw_ddb_entry_dma;
8477 unsigned long wtime;
8478 uint32_t ddb_state;
8479 int max_ddbs, idx, ret;
8480
8481 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
8482 MAX_DEV_DB_ENTRIES;
8483
8484 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8485 &fw_ddb_entry_dma, GFP_KERNEL);
8486 if (!fw_ddb_entry) {
8487 ql4_printk(KERN_ERR, ha,
8488 "%s: Unable to allocate dma buffer\n", __func__);
8489 goto exit_login_resp;
8490 }
8491
8492 wtime = jiffies + (HZ * BOOT_LOGIN_RESP_TOV);
8493
8494 for (idx = 0; idx < max_ddbs; idx++) {
8495 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
8496 if (ddb_entry == NULL)
8497 continue;
8498
8499 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) {
8500 DEBUG2(ql4_printk(KERN_INFO, ha,
8501 "%s: DDB index [%d]\n", __func__,
8502 ddb_entry->fw_ddb_index));
8503 do {
8504 ret = qla4xxx_get_fwddb_entry(ha,
8505 ddb_entry->fw_ddb_index,
8506 fw_ddb_entry, fw_ddb_entry_dma,
8507 NULL, NULL, &ddb_state, NULL,
8508 NULL, NULL);
8509 if (ret == QLA_ERROR)
8510 goto exit_login_resp;
8511
8512 if ((ddb_state == DDB_DS_SESSION_ACTIVE) ||
8513 (ddb_state == DDB_DS_SESSION_FAILED))
8514 break;
8515
8516 schedule_timeout_uninterruptible(HZ);
8517
8518 } while ((time_after(wtime, jiffies)));
8519
8520 if (!time_after(wtime, jiffies)) {
8521 DEBUG2(ql4_printk(KERN_INFO, ha,
8522 "%s: Login response wait timer expired\n",
8523 __func__));
8524 goto exit_login_resp;
8525 }
8526 }
8527 }
8528
8529 exit_login_resp:
8530 if (fw_ddb_entry)
8531 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8532 fw_ddb_entry, fw_ddb_entry_dma);
8533 }
8534
8535 /**
8536 * qla4xxx_probe_adapter - callback function to probe HBA
8537 * @pdev: pointer to pci_dev structure
8538 * @pci_device_id: pointer to pci_device entry
8539 *
8540 * This routine will probe for Qlogic 4xxx iSCSI host adapters.
8541 * It returns zero if successful. It also initializes all data necessary for
8542 * the driver.
8543 **/
8544 static int qla4xxx_probe_adapter(struct pci_dev *pdev,
8545 const struct pci_device_id *ent)
8546 {
8547 int ret = -ENODEV, status;
8548 struct Scsi_Host *host;
8549 struct scsi_qla_host *ha;
8550 uint8_t init_retry_count = 0;
8551 char buf[34];
8552 struct qla4_8xxx_legacy_intr_set *nx_legacy_intr;
8553 uint32_t dev_state;
8554
8555 if (pci_enable_device(pdev))
8556 return -1;
8557
8558 host = iscsi_host_alloc(&qla4xxx_driver_template, sizeof(*ha), 0);
8559 if (host == NULL) {
8560 printk(KERN_WARNING
8561 "qla4xxx: Couldn't allocate host from scsi layer!\n");
8562 goto probe_disable_device;
8563 }
8564
8565 /* Clear our data area */
8566 ha = to_qla_host(host);
8567 memset(ha, 0, sizeof(*ha));
8568
8569 /* Save the information from PCI BIOS. */
8570 ha->pdev = pdev;
8571 ha->host = host;
8572 ha->host_no = host->host_no;
8573 ha->func_num = PCI_FUNC(ha->pdev->devfn);
8574
8575 pci_enable_pcie_error_reporting(pdev);
8576
8577 /* Setup Runtime configurable options */
8578 if (is_qla8022(ha)) {
8579 ha->isp_ops = &qla4_82xx_isp_ops;
8580 ha->reg_tbl = (uint32_t *) qla4_82xx_reg_tbl;
8581 ha->qdr_sn_window = -1;
8582 ha->ddr_mn_window = -1;
8583 ha->curr_window = 255;
8584 nx_legacy_intr = &legacy_intr[ha->func_num];
8585 ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit;
8586 ha->nx_legacy_intr.tgt_status_reg =
8587 nx_legacy_intr->tgt_status_reg;
8588 ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg;
8589 ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg;
8590 } else if (is_qla8032(ha) || is_qla8042(ha)) {
8591 ha->isp_ops = &qla4_83xx_isp_ops;
8592 ha->reg_tbl = (uint32_t *)qla4_83xx_reg_tbl;
8593 } else {
8594 ha->isp_ops = &qla4xxx_isp_ops;
8595 }
8596
8597 if (is_qla80XX(ha)) {
8598 rwlock_init(&ha->hw_lock);
8599 ha->pf_bit = ha->func_num << 16;
8600 /* Set EEH reset type to fundamental if required by hba */
8601 pdev->needs_freset = 1;
8602 }
8603
8604 /* Configure PCI I/O space. */
8605 ret = ha->isp_ops->iospace_config(ha);
8606 if (ret)
8607 goto probe_failed_ioconfig;
8608
8609 ql4_printk(KERN_INFO, ha, "Found an ISP%04x, irq %d, iobase 0x%p\n",
8610 pdev->device, pdev->irq, ha->reg);
8611
8612 qla4xxx_config_dma_addressing(ha);
8613
8614 /* Initialize lists and spinlocks. */
8615 INIT_LIST_HEAD(&ha->free_srb_q);
8616
8617 mutex_init(&ha->mbox_sem);
8618 mutex_init(&ha->chap_sem);
8619 init_completion(&ha->mbx_intr_comp);
8620 init_completion(&ha->disable_acb_comp);
8621 init_completion(&ha->idc_comp);
8622 init_completion(&ha->link_up_comp);
8623 init_completion(&ha->disable_acb_comp);
8624
8625 spin_lock_init(&ha->hardware_lock);
8626 spin_lock_init(&ha->work_lock);
8627
8628 /* Initialize work list */
8629 INIT_LIST_HEAD(&ha->work_list);
8630
8631 /* Allocate dma buffers */
8632 if (qla4xxx_mem_alloc(ha)) {
8633 ql4_printk(KERN_WARNING, ha,
8634 "[ERROR] Failed to allocate memory for adapter\n");
8635
8636 ret = -ENOMEM;
8637 goto probe_failed;
8638 }
8639
8640 host->cmd_per_lun = 3;
8641 host->max_channel = 0;
8642 host->max_lun = MAX_LUNS - 1;
8643 host->max_id = MAX_TARGETS;
8644 host->max_cmd_len = IOCB_MAX_CDB_LEN;
8645 host->can_queue = MAX_SRBS ;
8646 host->transportt = qla4xxx_scsi_transport;
8647
8648 ret = scsi_init_shared_tag_map(host, MAX_SRBS);
8649 if (ret) {
8650 ql4_printk(KERN_WARNING, ha,
8651 "%s: scsi_init_shared_tag_map failed\n", __func__);
8652 goto probe_failed;
8653 }
8654
8655 pci_set_drvdata(pdev, ha);
8656
8657 ret = scsi_add_host(host, &pdev->dev);
8658 if (ret)
8659 goto probe_failed;
8660
8661 if (is_qla80XX(ha))
8662 qla4_8xxx_get_flash_info(ha);
8663
8664 if (is_qla8032(ha) || is_qla8042(ha)) {
8665 qla4_83xx_read_reset_template(ha);
8666 /*
8667 * NOTE: If ql4dontresethba==1, set IDC_CTRL DONTRESET_BIT0.
8668 * If DONRESET_BIT0 is set, drivers should not set dev_state
8669 * to NEED_RESET. But if NEED_RESET is set, drivers should
8670 * should honor the reset.
8671 */
8672 if (ql4xdontresethba == 1)
8673 qla4_83xx_set_idc_dontreset(ha);
8674 }
8675
8676 /*
8677 * Initialize the Host adapter request/response queues and
8678 * firmware
8679 * NOTE: interrupts enabled upon successful completion
8680 */
8681 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER);
8682
8683 /* Dont retry adapter initialization if IRQ allocation failed */
8684 if (is_qla80XX(ha) && !test_bit(AF_IRQ_ATTACHED, &ha->flags)) {
8685 ql4_printk(KERN_WARNING, ha, "%s: Skipping retry of adapter initialization\n",
8686 __func__);
8687 goto skip_retry_init;
8688 }
8689
8690 while ((!test_bit(AF_ONLINE, &ha->flags)) &&
8691 init_retry_count++ < MAX_INIT_RETRIES) {
8692
8693 if (is_qla80XX(ha)) {
8694 ha->isp_ops->idc_lock(ha);
8695 dev_state = qla4_8xxx_rd_direct(ha,
8696 QLA8XXX_CRB_DEV_STATE);
8697 ha->isp_ops->idc_unlock(ha);
8698 if (dev_state == QLA8XXX_DEV_FAILED) {
8699 ql4_printk(KERN_WARNING, ha, "%s: don't retry "
8700 "initialize adapter. H/W is in failed state\n",
8701 __func__);
8702 break;
8703 }
8704 }
8705 DEBUG2(printk("scsi: %s: retrying adapter initialization "
8706 "(%d)\n", __func__, init_retry_count));
8707
8708 if (ha->isp_ops->reset_chip(ha) == QLA_ERROR)
8709 continue;
8710
8711 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER);
8712 }
8713
8714 skip_retry_init:
8715 if (!test_bit(AF_ONLINE, &ha->flags)) {
8716 ql4_printk(KERN_WARNING, ha, "Failed to initialize adapter\n");
8717
8718 if ((is_qla8022(ha) && ql4xdontresethba) ||
8719 ((is_qla8032(ha) || is_qla8042(ha)) &&
8720 qla4_83xx_idc_dontreset(ha))) {
8721 /* Put the device in failed state. */
8722 DEBUG2(printk(KERN_ERR "HW STATE: FAILED\n"));
8723 ha->isp_ops->idc_lock(ha);
8724 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
8725 QLA8XXX_DEV_FAILED);
8726 ha->isp_ops->idc_unlock(ha);
8727 }
8728 ret = -ENODEV;
8729 goto remove_host;
8730 }
8731
8732 /* Startup the kernel thread for this host adapter. */
8733 DEBUG2(printk("scsi: %s: Starting kernel thread for "
8734 "qla4xxx_dpc\n", __func__));
8735 sprintf(buf, "qla4xxx_%lu_dpc", ha->host_no);
8736 ha->dpc_thread = create_singlethread_workqueue(buf);
8737 if (!ha->dpc_thread) {
8738 ql4_printk(KERN_WARNING, ha, "Unable to start DPC thread!\n");
8739 ret = -ENODEV;
8740 goto remove_host;
8741 }
8742 INIT_WORK(&ha->dpc_work, qla4xxx_do_dpc);
8743
8744 ha->task_wq = alloc_workqueue("qla4xxx_%lu_task", WQ_MEM_RECLAIM, 1,
8745 ha->host_no);
8746 if (!ha->task_wq) {
8747 ql4_printk(KERN_WARNING, ha, "Unable to start task thread!\n");
8748 ret = -ENODEV;
8749 goto remove_host;
8750 }
8751
8752 /*
8753 * For ISP-8XXX, request_irqs is called in qla4_8xxx_load_risc
8754 * (which is called indirectly by qla4xxx_initialize_adapter),
8755 * so that irqs will be registered after crbinit but before
8756 * mbx_intr_enable.
8757 */
8758 if (is_qla40XX(ha)) {
8759 ret = qla4xxx_request_irqs(ha);
8760 if (ret) {
8761 ql4_printk(KERN_WARNING, ha, "Failed to reserve "
8762 "interrupt %d already in use.\n", pdev->irq);
8763 goto remove_host;
8764 }
8765 }
8766
8767 pci_save_state(ha->pdev);
8768 ha->isp_ops->enable_intrs(ha);
8769
8770 /* Start timer thread. */
8771 qla4xxx_start_timer(ha, qla4xxx_timer, 1);
8772
8773 set_bit(AF_INIT_DONE, &ha->flags);
8774
8775 qla4_8xxx_alloc_sysfs_attr(ha);
8776
8777 printk(KERN_INFO
8778 " QLogic iSCSI HBA Driver version: %s\n"
8779 " QLogic ISP%04x @ %s, host#=%ld, fw=%02d.%02d.%02d.%02d\n",
8780 qla4xxx_version_str, ha->pdev->device, pci_name(ha->pdev),
8781 ha->host_no, ha->fw_info.fw_major, ha->fw_info.fw_minor,
8782 ha->fw_info.fw_patch, ha->fw_info.fw_build);
8783
8784 /* Set the driver version */
8785 if (is_qla80XX(ha))
8786 qla4_8xxx_set_param(ha, SET_DRVR_VERSION);
8787
8788 if (qla4xxx_setup_boot_info(ha))
8789 ql4_printk(KERN_ERR, ha,
8790 "%s: No iSCSI boot target configured\n", __func__);
8791
8792 if (qla4xxx_sysfs_ddb_export(ha))
8793 ql4_printk(KERN_ERR, ha,
8794 "%s: Error exporting ddb to sysfs\n", __func__);
8795
8796 /* Perform the build ddb list and login to each */
8797 qla4xxx_build_ddb_list(ha, INIT_ADAPTER);
8798 iscsi_host_for_each_session(ha->host, qla4xxx_login_flash_ddb);
8799 qla4xxx_wait_login_resp_boot_tgt(ha);
8800
8801 qla4xxx_create_chap_list(ha);
8802
8803 qla4xxx_create_ifaces(ha);
8804 return 0;
8805
8806 remove_host:
8807 scsi_remove_host(ha->host);
8808
8809 probe_failed:
8810 qla4xxx_free_adapter(ha);
8811
8812 probe_failed_ioconfig:
8813 pci_disable_pcie_error_reporting(pdev);
8814 scsi_host_put(ha->host);
8815
8816 probe_disable_device:
8817 pci_disable_device(pdev);
8818
8819 return ret;
8820 }
8821
8822 /**
8823 * qla4xxx_prevent_other_port_reinit - prevent other port from re-initialize
8824 * @ha: pointer to adapter structure
8825 *
8826 * Mark the other ISP-4xxx port to indicate that the driver is being removed,
8827 * so that the other port will not re-initialize while in the process of
8828 * removing the ha due to driver unload or hba hotplug.
8829 **/
8830 static void qla4xxx_prevent_other_port_reinit(struct scsi_qla_host *ha)
8831 {
8832 struct scsi_qla_host *other_ha = NULL;
8833 struct pci_dev *other_pdev = NULL;
8834 int fn = ISP4XXX_PCI_FN_2;
8835
8836 /*iscsi function numbers for ISP4xxx is 1 and 3*/
8837 if (PCI_FUNC(ha->pdev->devfn) & BIT_1)
8838 fn = ISP4XXX_PCI_FN_1;
8839
8840 other_pdev =
8841 pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus),
8842 ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
8843 fn));
8844
8845 /* Get other_ha if other_pdev is valid and state is enable*/
8846 if (other_pdev) {
8847 if (atomic_read(&other_pdev->enable_cnt)) {
8848 other_ha = pci_get_drvdata(other_pdev);
8849 if (other_ha) {
8850 set_bit(AF_HA_REMOVAL, &other_ha->flags);
8851 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: "
8852 "Prevent %s reinit\n", __func__,
8853 dev_name(&other_ha->pdev->dev)));
8854 }
8855 }
8856 pci_dev_put(other_pdev);
8857 }
8858 }
8859
8860 static void qla4xxx_destroy_fw_ddb_session(struct scsi_qla_host *ha)
8861 {
8862 struct ddb_entry *ddb_entry;
8863 int options;
8864 int idx;
8865
8866 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
8867
8868 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
8869 if ((ddb_entry != NULL) &&
8870 (ddb_entry->ddb_type == FLASH_DDB)) {
8871
8872 options = LOGOUT_OPTION_CLOSE_SESSION;
8873 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options)
8874 == QLA_ERROR)
8875 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n",
8876 __func__);
8877
8878 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
8879 /*
8880 * we have decremented the reference count of the driver
8881 * when we setup the session to have the driver unload
8882 * to be seamless without actually destroying the
8883 * session
8884 **/
8885 try_module_get(qla4xxx_iscsi_transport.owner);
8886 iscsi_destroy_endpoint(ddb_entry->conn->ep);
8887 qla4xxx_free_ddb(ha, ddb_entry);
8888 iscsi_session_teardown(ddb_entry->sess);
8889 }
8890 }
8891 }
8892 /**
8893 * qla4xxx_remove_adapter - callback function to remove adapter.
8894 * @pci_dev: PCI device pointer
8895 **/
8896 static void qla4xxx_remove_adapter(struct pci_dev *pdev)
8897 {
8898 struct scsi_qla_host *ha;
8899
8900 /*
8901 * If the PCI device is disabled then it means probe_adapter had
8902 * failed and resources already cleaned up on probe_adapter exit.
8903 */
8904 if (!pci_is_enabled(pdev))
8905 return;
8906
8907 ha = pci_get_drvdata(pdev);
8908
8909 if (is_qla40XX(ha))
8910 qla4xxx_prevent_other_port_reinit(ha);
8911
8912 /* destroy iface from sysfs */
8913 qla4xxx_destroy_ifaces(ha);
8914
8915 if ((!ql4xdisablesysfsboot) && ha->boot_kset)
8916 iscsi_boot_destroy_kset(ha->boot_kset);
8917
8918 qla4xxx_destroy_fw_ddb_session(ha);
8919 qla4_8xxx_free_sysfs_attr(ha);
8920
8921 qla4xxx_sysfs_ddb_remove(ha);
8922 scsi_remove_host(ha->host);
8923
8924 qla4xxx_free_adapter(ha);
8925
8926 scsi_host_put(ha->host);
8927
8928 pci_disable_pcie_error_reporting(pdev);
8929 pci_disable_device(pdev);
8930 }
8931
8932 /**
8933 * qla4xxx_config_dma_addressing() - Configure OS DMA addressing method.
8934 * @ha: HA context
8935 *
8936 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
8937 * supported addressing method.
8938 */
8939 static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha)
8940 {
8941 int retval;
8942
8943 /* Update our PCI device dma_mask for full 64 bit mask */
8944 if (pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(64)) == 0) {
8945 if (pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) {
8946 dev_dbg(&ha->pdev->dev,
8947 "Failed to set 64 bit PCI consistent mask; "
8948 "using 32 bit.\n");
8949 retval = pci_set_consistent_dma_mask(ha->pdev,
8950 DMA_BIT_MASK(32));
8951 }
8952 } else
8953 retval = pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(32));
8954 }
8955
8956 static int qla4xxx_slave_alloc(struct scsi_device *sdev)
8957 {
8958 struct iscsi_cls_session *cls_sess;
8959 struct iscsi_session *sess;
8960 struct ddb_entry *ddb;
8961 int queue_depth = QL4_DEF_QDEPTH;
8962
8963 cls_sess = starget_to_session(sdev->sdev_target);
8964 sess = cls_sess->dd_data;
8965 ddb = sess->dd_data;
8966
8967 sdev->hostdata = ddb;
8968 sdev->tagged_supported = 1;
8969
8970 if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU)
8971 queue_depth = ql4xmaxqdepth;
8972
8973 scsi_activate_tcq(sdev, queue_depth);
8974 return 0;
8975 }
8976
8977 static int qla4xxx_slave_configure(struct scsi_device *sdev)
8978 {
8979 sdev->tagged_supported = 1;
8980 return 0;
8981 }
8982
8983 static void qla4xxx_slave_destroy(struct scsi_device *sdev)
8984 {
8985 scsi_deactivate_tcq(sdev, 1);
8986 }
8987
8988 static int qla4xxx_change_queue_depth(struct scsi_device *sdev, int qdepth,
8989 int reason)
8990 {
8991 if (!ql4xqfulltracking)
8992 return -EOPNOTSUPP;
8993
8994 return iscsi_change_queue_depth(sdev, qdepth, reason);
8995 }
8996
8997 /**
8998 * qla4xxx_del_from_active_array - returns an active srb
8999 * @ha: Pointer to host adapter structure.
9000 * @index: index into the active_array
9001 *
9002 * This routine removes and returns the srb at the specified index
9003 **/
9004 struct srb *qla4xxx_del_from_active_array(struct scsi_qla_host *ha,
9005 uint32_t index)
9006 {
9007 struct srb *srb = NULL;
9008 struct scsi_cmnd *cmd = NULL;
9009
9010 cmd = scsi_host_find_tag(ha->host, index);
9011 if (!cmd)
9012 return srb;
9013
9014 srb = (struct srb *)CMD_SP(cmd);
9015 if (!srb)
9016 return srb;
9017
9018 /* update counters */
9019 if (srb->flags & SRB_DMA_VALID) {
9020 ha->iocb_cnt -= srb->iocb_cnt;
9021 if (srb->cmd)
9022 srb->cmd->host_scribble =
9023 (unsigned char *)(unsigned long) MAX_SRBS;
9024 }
9025 return srb;
9026 }
9027
9028 /**
9029 * qla4xxx_eh_wait_on_command - waits for command to be returned by firmware
9030 * @ha: Pointer to host adapter structure.
9031 * @cmd: Scsi Command to wait on.
9032 *
9033 * This routine waits for the command to be returned by the Firmware
9034 * for some max time.
9035 **/
9036 static int qla4xxx_eh_wait_on_command(struct scsi_qla_host *ha,
9037 struct scsi_cmnd *cmd)
9038 {
9039 int done = 0;
9040 struct srb *rp;
9041 uint32_t max_wait_time = EH_WAIT_CMD_TOV;
9042 int ret = SUCCESS;
9043
9044 /* Dont wait on command if PCI error is being handled
9045 * by PCI AER driver
9046 */
9047 if (unlikely(pci_channel_offline(ha->pdev)) ||
9048 (test_bit(AF_EEH_BUSY, &ha->flags))) {
9049 ql4_printk(KERN_WARNING, ha, "scsi%ld: Return from %s\n",
9050 ha->host_no, __func__);
9051 return ret;
9052 }
9053
9054 do {
9055 /* Checking to see if its returned to OS */
9056 rp = (struct srb *) CMD_SP(cmd);
9057 if (rp == NULL) {
9058 done++;
9059 break;
9060 }
9061
9062 msleep(2000);
9063 } while (max_wait_time--);
9064
9065 return done;
9066 }
9067
9068 /**
9069 * qla4xxx_wait_for_hba_online - waits for HBA to come online
9070 * @ha: Pointer to host adapter structure
9071 **/
9072 static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha)
9073 {
9074 unsigned long wait_online;
9075
9076 wait_online = jiffies + (HBA_ONLINE_TOV * HZ);
9077 while (time_before(jiffies, wait_online)) {
9078
9079 if (adapter_up(ha))
9080 return QLA_SUCCESS;
9081
9082 msleep(2000);
9083 }
9084
9085 return QLA_ERROR;
9086 }
9087
9088 /**
9089 * qla4xxx_eh_wait_for_commands - wait for active cmds to finish.
9090 * @ha: pointer to HBA
9091 * @t: target id
9092 * @l: lun id
9093 *
9094 * This function waits for all outstanding commands to a lun to complete. It
9095 * returns 0 if all pending commands are returned and 1 otherwise.
9096 **/
9097 static int qla4xxx_eh_wait_for_commands(struct scsi_qla_host *ha,
9098 struct scsi_target *stgt,
9099 struct scsi_device *sdev)
9100 {
9101 int cnt;
9102 int status = 0;
9103 struct scsi_cmnd *cmd;
9104
9105 /*
9106 * Waiting for all commands for the designated target or dev
9107 * in the active array
9108 */
9109 for (cnt = 0; cnt < ha->host->can_queue; cnt++) {
9110 cmd = scsi_host_find_tag(ha->host, cnt);
9111 if (cmd && stgt == scsi_target(cmd->device) &&
9112 (!sdev || sdev == cmd->device)) {
9113 if (!qla4xxx_eh_wait_on_command(ha, cmd)) {
9114 status++;
9115 break;
9116 }
9117 }
9118 }
9119 return status;
9120 }
9121
9122 /**
9123 * qla4xxx_eh_abort - callback for abort task.
9124 * @cmd: Pointer to Linux's SCSI command structure
9125 *
9126 * This routine is called by the Linux OS to abort the specified
9127 * command.
9128 **/
9129 static int qla4xxx_eh_abort(struct scsi_cmnd *cmd)
9130 {
9131 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
9132 unsigned int id = cmd->device->id;
9133 unsigned int lun = cmd->device->lun;
9134 unsigned long flags;
9135 struct srb *srb = NULL;
9136 int ret = SUCCESS;
9137 int wait = 0;
9138
9139 ql4_printk(KERN_INFO, ha,
9140 "scsi%ld:%d:%d: Abort command issued cmd=%p\n",
9141 ha->host_no, id, lun, cmd);
9142
9143 spin_lock_irqsave(&ha->hardware_lock, flags);
9144 srb = (struct srb *) CMD_SP(cmd);
9145 if (!srb) {
9146 spin_unlock_irqrestore(&ha->hardware_lock, flags);
9147 return SUCCESS;
9148 }
9149 kref_get(&srb->srb_ref);
9150 spin_unlock_irqrestore(&ha->hardware_lock, flags);
9151
9152 if (qla4xxx_abort_task(ha, srb) != QLA_SUCCESS) {
9153 DEBUG3(printk("scsi%ld:%d:%d: Abort_task mbx failed.\n",
9154 ha->host_no, id, lun));
9155 ret = FAILED;
9156 } else {
9157 DEBUG3(printk("scsi%ld:%d:%d: Abort_task mbx success.\n",
9158 ha->host_no, id, lun));
9159 wait = 1;
9160 }
9161
9162 kref_put(&srb->srb_ref, qla4xxx_srb_compl);
9163
9164 /* Wait for command to complete */
9165 if (wait) {
9166 if (!qla4xxx_eh_wait_on_command(ha, cmd)) {
9167 DEBUG2(printk("scsi%ld:%d:%d: Abort handler timed out\n",
9168 ha->host_no, id, lun));
9169 ret = FAILED;
9170 }
9171 }
9172
9173 ql4_printk(KERN_INFO, ha,
9174 "scsi%ld:%d:%d: Abort command - %s\n",
9175 ha->host_no, id, lun, (ret == SUCCESS) ? "succeeded" : "failed");
9176
9177 return ret;
9178 }
9179
9180 /**
9181 * qla4xxx_eh_device_reset - callback for target reset.
9182 * @cmd: Pointer to Linux's SCSI command structure
9183 *
9184 * This routine is called by the Linux OS to reset all luns on the
9185 * specified target.
9186 **/
9187 static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd)
9188 {
9189 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
9190 struct ddb_entry *ddb_entry = cmd->device->hostdata;
9191 int ret = FAILED, stat;
9192
9193 if (!ddb_entry)
9194 return ret;
9195
9196 ret = iscsi_block_scsi_eh(cmd);
9197 if (ret)
9198 return ret;
9199 ret = FAILED;
9200
9201 ql4_printk(KERN_INFO, ha,
9202 "scsi%ld:%d:%d:%d: DEVICE RESET ISSUED.\n", ha->host_no,
9203 cmd->device->channel, cmd->device->id, cmd->device->lun);
9204
9205 DEBUG2(printk(KERN_INFO
9206 "scsi%ld: DEVICE_RESET cmd=%p jiffies = 0x%lx, to=%x,"
9207 "dpc_flags=%lx, status=%x allowed=%d\n", ha->host_no,
9208 cmd, jiffies, cmd->request->timeout / HZ,
9209 ha->dpc_flags, cmd->result, cmd->allowed));
9210
9211 /* FIXME: wait for hba to go online */
9212 stat = qla4xxx_reset_lun(ha, ddb_entry, cmd->device->lun);
9213 if (stat != QLA_SUCCESS) {
9214 ql4_printk(KERN_INFO, ha, "DEVICE RESET FAILED. %d\n", stat);
9215 goto eh_dev_reset_done;
9216 }
9217
9218 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device),
9219 cmd->device)) {
9220 ql4_printk(KERN_INFO, ha,
9221 "DEVICE RESET FAILED - waiting for "
9222 "commands.\n");
9223 goto eh_dev_reset_done;
9224 }
9225
9226 /* Send marker. */
9227 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun,
9228 MM_LUN_RESET) != QLA_SUCCESS)
9229 goto eh_dev_reset_done;
9230
9231 ql4_printk(KERN_INFO, ha,
9232 "scsi(%ld:%d:%d:%d): DEVICE RESET SUCCEEDED.\n",
9233 ha->host_no, cmd->device->channel, cmd->device->id,
9234 cmd->device->lun);
9235
9236 ret = SUCCESS;
9237
9238 eh_dev_reset_done:
9239
9240 return ret;
9241 }
9242
9243 /**
9244 * qla4xxx_eh_target_reset - callback for target reset.
9245 * @cmd: Pointer to Linux's SCSI command structure
9246 *
9247 * This routine is called by the Linux OS to reset the target.
9248 **/
9249 static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd)
9250 {
9251 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
9252 struct ddb_entry *ddb_entry = cmd->device->hostdata;
9253 int stat, ret;
9254
9255 if (!ddb_entry)
9256 return FAILED;
9257
9258 ret = iscsi_block_scsi_eh(cmd);
9259 if (ret)
9260 return ret;
9261
9262 starget_printk(KERN_INFO, scsi_target(cmd->device),
9263 "WARM TARGET RESET ISSUED.\n");
9264
9265 DEBUG2(printk(KERN_INFO
9266 "scsi%ld: TARGET_DEVICE_RESET cmd=%p jiffies = 0x%lx, "
9267 "to=%x,dpc_flags=%lx, status=%x allowed=%d\n",
9268 ha->host_no, cmd, jiffies, cmd->request->timeout / HZ,
9269 ha->dpc_flags, cmd->result, cmd->allowed));
9270
9271 stat = qla4xxx_reset_target(ha, ddb_entry);
9272 if (stat != QLA_SUCCESS) {
9273 starget_printk(KERN_INFO, scsi_target(cmd->device),
9274 "WARM TARGET RESET FAILED.\n");
9275 return FAILED;
9276 }
9277
9278 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device),
9279 NULL)) {
9280 starget_printk(KERN_INFO, scsi_target(cmd->device),
9281 "WARM TARGET DEVICE RESET FAILED - "
9282 "waiting for commands.\n");
9283 return FAILED;
9284 }
9285
9286 /* Send marker. */
9287 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun,
9288 MM_TGT_WARM_RESET) != QLA_SUCCESS) {
9289 starget_printk(KERN_INFO, scsi_target(cmd->device),
9290 "WARM TARGET DEVICE RESET FAILED - "
9291 "marker iocb failed.\n");
9292 return FAILED;
9293 }
9294
9295 starget_printk(KERN_INFO, scsi_target(cmd->device),
9296 "WARM TARGET RESET SUCCEEDED.\n");
9297 return SUCCESS;
9298 }
9299
9300 /**
9301 * qla4xxx_is_eh_active - check if error handler is running
9302 * @shost: Pointer to SCSI Host struct
9303 *
9304 * This routine finds that if reset host is called in EH
9305 * scenario or from some application like sg_reset
9306 **/
9307 static int qla4xxx_is_eh_active(struct Scsi_Host *shost)
9308 {
9309 if (shost->shost_state == SHOST_RECOVERY)
9310 return 1;
9311 return 0;
9312 }
9313
9314 /**
9315 * qla4xxx_eh_host_reset - kernel callback
9316 * @cmd: Pointer to Linux's SCSI command structure
9317 *
9318 * This routine is invoked by the Linux kernel to perform fatal error
9319 * recovery on the specified adapter.
9320 **/
9321 static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd)
9322 {
9323 int return_status = FAILED;
9324 struct scsi_qla_host *ha;
9325
9326 ha = to_qla_host(cmd->device->host);
9327
9328 if ((is_qla8032(ha) || is_qla8042(ha)) && ql4xdontresethba)
9329 qla4_83xx_set_idc_dontreset(ha);
9330
9331 /*
9332 * For ISP8324 and ISP8042, if IDC_CTRL DONTRESET_BIT0 is set by other
9333 * protocol drivers, we should not set device_state to NEED_RESET
9334 */
9335 if (ql4xdontresethba ||
9336 ((is_qla8032(ha) || is_qla8042(ha)) &&
9337 qla4_83xx_idc_dontreset(ha))) {
9338 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n",
9339 ha->host_no, __func__));
9340
9341 /* Clear outstanding srb in queues */
9342 if (qla4xxx_is_eh_active(cmd->device->host))
9343 qla4xxx_abort_active_cmds(ha, DID_ABORT << 16);
9344
9345 return FAILED;
9346 }
9347
9348 ql4_printk(KERN_INFO, ha,
9349 "scsi(%ld:%d:%d:%d): HOST RESET ISSUED.\n", ha->host_no,
9350 cmd->device->channel, cmd->device->id, cmd->device->lun);
9351
9352 if (qla4xxx_wait_for_hba_online(ha) != QLA_SUCCESS) {
9353 DEBUG2(printk("scsi%ld:%d: %s: Unable to reset host. Adapter "
9354 "DEAD.\n", ha->host_no, cmd->device->channel,
9355 __func__));
9356
9357 return FAILED;
9358 }
9359
9360 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
9361 if (is_qla80XX(ha))
9362 set_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
9363 else
9364 set_bit(DPC_RESET_HA, &ha->dpc_flags);
9365 }
9366
9367 if (qla4xxx_recover_adapter(ha) == QLA_SUCCESS)
9368 return_status = SUCCESS;
9369
9370 ql4_printk(KERN_INFO, ha, "HOST RESET %s.\n",
9371 return_status == FAILED ? "FAILED" : "SUCCEEDED");
9372
9373 return return_status;
9374 }
9375
9376 static int qla4xxx_context_reset(struct scsi_qla_host *ha)
9377 {
9378 uint32_t mbox_cmd[MBOX_REG_COUNT];
9379 uint32_t mbox_sts[MBOX_REG_COUNT];
9380 struct addr_ctrl_blk_def *acb = NULL;
9381 uint32_t acb_len = sizeof(struct addr_ctrl_blk_def);
9382 int rval = QLA_SUCCESS;
9383 dma_addr_t acb_dma;
9384
9385 acb = dma_alloc_coherent(&ha->pdev->dev,
9386 sizeof(struct addr_ctrl_blk_def),
9387 &acb_dma, GFP_KERNEL);
9388 if (!acb) {
9389 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc acb\n",
9390 __func__);
9391 rval = -ENOMEM;
9392 goto exit_port_reset;
9393 }
9394
9395 memset(acb, 0, acb_len);
9396
9397 rval = qla4xxx_get_acb(ha, acb_dma, PRIMARI_ACB, acb_len);
9398 if (rval != QLA_SUCCESS) {
9399 rval = -EIO;
9400 goto exit_free_acb;
9401 }
9402
9403 rval = qla4xxx_disable_acb(ha);
9404 if (rval != QLA_SUCCESS) {
9405 rval = -EIO;
9406 goto exit_free_acb;
9407 }
9408
9409 wait_for_completion_timeout(&ha->disable_acb_comp,
9410 DISABLE_ACB_TOV * HZ);
9411
9412 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], acb_dma);
9413 if (rval != QLA_SUCCESS) {
9414 rval = -EIO;
9415 goto exit_free_acb;
9416 }
9417
9418 exit_free_acb:
9419 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk_def),
9420 acb, acb_dma);
9421 exit_port_reset:
9422 DEBUG2(ql4_printk(KERN_INFO, ha, "%s %s\n", __func__,
9423 rval == QLA_SUCCESS ? "SUCCEEDED" : "FAILED"));
9424 return rval;
9425 }
9426
9427 static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type)
9428 {
9429 struct scsi_qla_host *ha = to_qla_host(shost);
9430 int rval = QLA_SUCCESS;
9431 uint32_t idc_ctrl;
9432
9433 if (ql4xdontresethba) {
9434 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Don't Reset HBA\n",
9435 __func__));
9436 rval = -EPERM;
9437 goto exit_host_reset;
9438 }
9439
9440 if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
9441 goto recover_adapter;
9442
9443 switch (reset_type) {
9444 case SCSI_ADAPTER_RESET:
9445 set_bit(DPC_RESET_HA, &ha->dpc_flags);
9446 break;
9447 case SCSI_FIRMWARE_RESET:
9448 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
9449 if (is_qla80XX(ha))
9450 /* set firmware context reset */
9451 set_bit(DPC_RESET_HA_FW_CONTEXT,
9452 &ha->dpc_flags);
9453 else {
9454 rval = qla4xxx_context_reset(ha);
9455 goto exit_host_reset;
9456 }
9457 }
9458 break;
9459 }
9460
9461 recover_adapter:
9462 /* For ISP8324 and ISP8042 set graceful reset bit in IDC_DRV_CTRL if
9463 * reset is issued by application */
9464 if ((is_qla8032(ha) || is_qla8042(ha)) &&
9465 test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
9466 idc_ctrl = qla4_83xx_rd_reg(ha, QLA83XX_IDC_DRV_CTRL);
9467 qla4_83xx_wr_reg(ha, QLA83XX_IDC_DRV_CTRL,
9468 (idc_ctrl | GRACEFUL_RESET_BIT1));
9469 }
9470
9471 rval = qla4xxx_recover_adapter(ha);
9472 if (rval != QLA_SUCCESS) {
9473 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: recover adapter fail\n",
9474 __func__));
9475 rval = -EIO;
9476 }
9477
9478 exit_host_reset:
9479 return rval;
9480 }
9481
9482 /* PCI AER driver recovers from all correctable errors w/o
9483 * driver intervention. For uncorrectable errors PCI AER
9484 * driver calls the following device driver's callbacks
9485 *
9486 * - Fatal Errors - link_reset
9487 * - Non-Fatal Errors - driver's pci_error_detected() which
9488 * returns CAN_RECOVER, NEED_RESET or DISCONNECT.
9489 *
9490 * PCI AER driver calls
9491 * CAN_RECOVER - driver's pci_mmio_enabled(), mmio_enabled
9492 * returns RECOVERED or NEED_RESET if fw_hung
9493 * NEED_RESET - driver's slot_reset()
9494 * DISCONNECT - device is dead & cannot recover
9495 * RECOVERED - driver's pci_resume()
9496 */
9497 static pci_ers_result_t
9498 qla4xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
9499 {
9500 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9501
9502 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: error detected:state %x\n",
9503 ha->host_no, __func__, state);
9504
9505 if (!is_aer_supported(ha))
9506 return PCI_ERS_RESULT_NONE;
9507
9508 switch (state) {
9509 case pci_channel_io_normal:
9510 clear_bit(AF_EEH_BUSY, &ha->flags);
9511 return PCI_ERS_RESULT_CAN_RECOVER;
9512 case pci_channel_io_frozen:
9513 set_bit(AF_EEH_BUSY, &ha->flags);
9514 qla4xxx_mailbox_premature_completion(ha);
9515 qla4xxx_free_irqs(ha);
9516 pci_disable_device(pdev);
9517 /* Return back all IOs */
9518 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
9519 return PCI_ERS_RESULT_NEED_RESET;
9520 case pci_channel_io_perm_failure:
9521 set_bit(AF_EEH_BUSY, &ha->flags);
9522 set_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags);
9523 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
9524 return PCI_ERS_RESULT_DISCONNECT;
9525 }
9526 return PCI_ERS_RESULT_NEED_RESET;
9527 }
9528
9529 /**
9530 * qla4xxx_pci_mmio_enabled() gets called if
9531 * qla4xxx_pci_error_detected() returns PCI_ERS_RESULT_CAN_RECOVER
9532 * and read/write to the device still works.
9533 **/
9534 static pci_ers_result_t
9535 qla4xxx_pci_mmio_enabled(struct pci_dev *pdev)
9536 {
9537 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9538
9539 if (!is_aer_supported(ha))
9540 return PCI_ERS_RESULT_NONE;
9541
9542 return PCI_ERS_RESULT_RECOVERED;
9543 }
9544
9545 static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha)
9546 {
9547 uint32_t rval = QLA_ERROR;
9548 int fn;
9549 struct pci_dev *other_pdev = NULL;
9550
9551 ql4_printk(KERN_WARNING, ha, "scsi%ld: In %s\n", ha->host_no, __func__);
9552
9553 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
9554
9555 if (test_bit(AF_ONLINE, &ha->flags)) {
9556 clear_bit(AF_ONLINE, &ha->flags);
9557 clear_bit(AF_LINK_UP, &ha->flags);
9558 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session);
9559 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
9560 }
9561
9562 fn = PCI_FUNC(ha->pdev->devfn);
9563 while (fn > 0) {
9564 fn--;
9565 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Finding PCI device at "
9566 "func %x\n", ha->host_no, __func__, fn);
9567 /* Get the pci device given the domain, bus,
9568 * slot/function number */
9569 other_pdev =
9570 pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus),
9571 ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
9572 fn));
9573
9574 if (!other_pdev)
9575 continue;
9576
9577 if (atomic_read(&other_pdev->enable_cnt)) {
9578 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Found PCI "
9579 "func in enabled state%x\n", ha->host_no,
9580 __func__, fn);
9581 pci_dev_put(other_pdev);
9582 break;
9583 }
9584 pci_dev_put(other_pdev);
9585 }
9586
9587 /* The first function on the card, the reset owner will
9588 * start & initialize the firmware. The other functions
9589 * on the card will reset the firmware context
9590 */
9591 if (!fn) {
9592 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn being reset "
9593 "0x%x is the owner\n", ha->host_no, __func__,
9594 ha->pdev->devfn);
9595
9596 ha->isp_ops->idc_lock(ha);
9597 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9598 QLA8XXX_DEV_COLD);
9599 ha->isp_ops->idc_unlock(ha);
9600
9601 rval = qla4_8xxx_update_idc_reg(ha);
9602 if (rval == QLA_ERROR) {
9603 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: FAILED\n",
9604 ha->host_no, __func__);
9605 ha->isp_ops->idc_lock(ha);
9606 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9607 QLA8XXX_DEV_FAILED);
9608 ha->isp_ops->idc_unlock(ha);
9609 goto exit_error_recovery;
9610 }
9611
9612 clear_bit(AF_FW_RECOVERY, &ha->flags);
9613 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
9614
9615 if (rval != QLA_SUCCESS) {
9616 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: "
9617 "FAILED\n", ha->host_no, __func__);
9618 ha->isp_ops->idc_lock(ha);
9619 qla4_8xxx_clear_drv_active(ha);
9620 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9621 QLA8XXX_DEV_FAILED);
9622 ha->isp_ops->idc_unlock(ha);
9623 } else {
9624 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: "
9625 "READY\n", ha->host_no, __func__);
9626 ha->isp_ops->idc_lock(ha);
9627 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9628 QLA8XXX_DEV_READY);
9629 /* Clear driver state register */
9630 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_STATE, 0);
9631 qla4_8xxx_set_drv_active(ha);
9632 ha->isp_ops->idc_unlock(ha);
9633 ha->isp_ops->enable_intrs(ha);
9634 }
9635 } else {
9636 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn 0x%x is not "
9637 "the reset owner\n", ha->host_no, __func__,
9638 ha->pdev->devfn);
9639 if ((qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE) ==
9640 QLA8XXX_DEV_READY)) {
9641 clear_bit(AF_FW_RECOVERY, &ha->flags);
9642 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
9643 if (rval == QLA_SUCCESS)
9644 ha->isp_ops->enable_intrs(ha);
9645
9646 ha->isp_ops->idc_lock(ha);
9647 qla4_8xxx_set_drv_active(ha);
9648 ha->isp_ops->idc_unlock(ha);
9649 }
9650 }
9651 exit_error_recovery:
9652 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
9653 return rval;
9654 }
9655
9656 static pci_ers_result_t
9657 qla4xxx_pci_slot_reset(struct pci_dev *pdev)
9658 {
9659 pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
9660 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9661 int rc;
9662
9663 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: slot_reset\n",
9664 ha->host_no, __func__);
9665
9666 if (!is_aer_supported(ha))
9667 return PCI_ERS_RESULT_NONE;
9668
9669 /* Restore the saved state of PCIe device -
9670 * BAR registers, PCI Config space, PCIX, MSI,
9671 * IOV states
9672 */
9673 pci_restore_state(pdev);
9674
9675 /* pci_restore_state() clears the saved_state flag of the device
9676 * save restored state which resets saved_state flag
9677 */
9678 pci_save_state(pdev);
9679
9680 /* Initialize device or resume if in suspended state */
9681 rc = pci_enable_device(pdev);
9682 if (rc) {
9683 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Can't re-enable "
9684 "device after reset\n", ha->host_no, __func__);
9685 goto exit_slot_reset;
9686 }
9687
9688 ha->isp_ops->disable_intrs(ha);
9689
9690 if (is_qla80XX(ha)) {
9691 if (qla4_8xxx_error_recovery(ha) == QLA_SUCCESS) {
9692 ret = PCI_ERS_RESULT_RECOVERED;
9693 goto exit_slot_reset;
9694 } else
9695 goto exit_slot_reset;
9696 }
9697
9698 exit_slot_reset:
9699 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Return=%x\n"
9700 "device after reset\n", ha->host_no, __func__, ret);
9701 return ret;
9702 }
9703
9704 static void
9705 qla4xxx_pci_resume(struct pci_dev *pdev)
9706 {
9707 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9708 int ret;
9709
9710 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: pci_resume\n",
9711 ha->host_no, __func__);
9712
9713 ret = qla4xxx_wait_for_hba_online(ha);
9714 if (ret != QLA_SUCCESS) {
9715 ql4_printk(KERN_ERR, ha, "scsi%ld: %s: the device failed to "
9716 "resume I/O from slot/link_reset\n", ha->host_no,
9717 __func__);
9718 }
9719
9720 pci_cleanup_aer_uncorrect_error_status(pdev);
9721 clear_bit(AF_EEH_BUSY, &ha->flags);
9722 }
9723
9724 static const struct pci_error_handlers qla4xxx_err_handler = {
9725 .error_detected = qla4xxx_pci_error_detected,
9726 .mmio_enabled = qla4xxx_pci_mmio_enabled,
9727 .slot_reset = qla4xxx_pci_slot_reset,
9728 .resume = qla4xxx_pci_resume,
9729 };
9730
9731 static struct pci_device_id qla4xxx_pci_tbl[] = {
9732 {
9733 .vendor = PCI_VENDOR_ID_QLOGIC,
9734 .device = PCI_DEVICE_ID_QLOGIC_ISP4010,
9735 .subvendor = PCI_ANY_ID,
9736 .subdevice = PCI_ANY_ID,
9737 },
9738 {
9739 .vendor = PCI_VENDOR_ID_QLOGIC,
9740 .device = PCI_DEVICE_ID_QLOGIC_ISP4022,
9741 .subvendor = PCI_ANY_ID,
9742 .subdevice = PCI_ANY_ID,
9743 },
9744 {
9745 .vendor = PCI_VENDOR_ID_QLOGIC,
9746 .device = PCI_DEVICE_ID_QLOGIC_ISP4032,
9747 .subvendor = PCI_ANY_ID,
9748 .subdevice = PCI_ANY_ID,
9749 },
9750 {
9751 .vendor = PCI_VENDOR_ID_QLOGIC,
9752 .device = PCI_DEVICE_ID_QLOGIC_ISP8022,
9753 .subvendor = PCI_ANY_ID,
9754 .subdevice = PCI_ANY_ID,
9755 },
9756 {
9757 .vendor = PCI_VENDOR_ID_QLOGIC,
9758 .device = PCI_DEVICE_ID_QLOGIC_ISP8324,
9759 .subvendor = PCI_ANY_ID,
9760 .subdevice = PCI_ANY_ID,
9761 },
9762 {
9763 .vendor = PCI_VENDOR_ID_QLOGIC,
9764 .device = PCI_DEVICE_ID_QLOGIC_ISP8042,
9765 .subvendor = PCI_ANY_ID,
9766 .subdevice = PCI_ANY_ID,
9767 },
9768 {0, 0},
9769 };
9770 MODULE_DEVICE_TABLE(pci, qla4xxx_pci_tbl);
9771
9772 static struct pci_driver qla4xxx_pci_driver = {
9773 .name = DRIVER_NAME,
9774 .id_table = qla4xxx_pci_tbl,
9775 .probe = qla4xxx_probe_adapter,
9776 .remove = qla4xxx_remove_adapter,
9777 .err_handler = &qla4xxx_err_handler,
9778 };
9779
9780 static int __init qla4xxx_module_init(void)
9781 {
9782 int ret;
9783
9784 /* Allocate cache for SRBs. */
9785 srb_cachep = kmem_cache_create("qla4xxx_srbs", sizeof(struct srb), 0,
9786 SLAB_HWCACHE_ALIGN, NULL);
9787 if (srb_cachep == NULL) {
9788 printk(KERN_ERR
9789 "%s: Unable to allocate SRB cache..."
9790 "Failing load!\n", DRIVER_NAME);
9791 ret = -ENOMEM;
9792 goto no_srp_cache;
9793 }
9794
9795 /* Derive version string. */
9796 strcpy(qla4xxx_version_str, QLA4XXX_DRIVER_VERSION);
9797 if (ql4xextended_error_logging)
9798 strcat(qla4xxx_version_str, "-debug");
9799
9800 qla4xxx_scsi_transport =
9801 iscsi_register_transport(&qla4xxx_iscsi_transport);
9802 if (!qla4xxx_scsi_transport){
9803 ret = -ENODEV;
9804 goto release_srb_cache;
9805 }
9806
9807 ret = pci_register_driver(&qla4xxx_pci_driver);
9808 if (ret)
9809 goto unregister_transport;
9810
9811 printk(KERN_INFO "QLogic iSCSI HBA Driver\n");
9812 return 0;
9813
9814 unregister_transport:
9815 iscsi_unregister_transport(&qla4xxx_iscsi_transport);
9816 release_srb_cache:
9817 kmem_cache_destroy(srb_cachep);
9818 no_srp_cache:
9819 return ret;
9820 }
9821
9822 static void __exit qla4xxx_module_exit(void)
9823 {
9824 pci_unregister_driver(&qla4xxx_pci_driver);
9825 iscsi_unregister_transport(&qla4xxx_iscsi_transport);
9826 kmem_cache_destroy(srb_cachep);
9827 }
9828
9829 module_init(qla4xxx_module_init);
9830 module_exit(qla4xxx_module_exit);
9831
9832 MODULE_AUTHOR("QLogic Corporation");
9833 MODULE_DESCRIPTION("QLogic iSCSI HBA Driver");
9834 MODULE_LICENSE("GPL");
9835 MODULE_VERSION(QLA4XXX_DRIVER_VERSION);
Linux with added FPC-III support