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Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
[linux/fpc-iii.git] / drivers / scsi / qla4xxx / ql4_os.c
blob6d25879d87c8550893cdd8671db68d542cde64cb
1 /*
2 * QLogic iSCSI HBA Driver
3 * Copyright (c) 2003-2013 QLogic Corporation
4 *
5 * See LICENSE.qla4xxx for copyright and licensing details.
6 */
7 #include <linux/moduleparam.h>
8 #include <linux/slab.h>
9 #include <linux/blkdev.h>
10 #include <linux/iscsi_boot_sysfs.h>
11 #include <linux/inet.h>
12
13 #include <scsi/scsi_tcq.h>
14 #include <scsi/scsicam.h>
15
16 #include "ql4_def.h"
17 #include "ql4_version.h"
18 #include "ql4_glbl.h"
19 #include "ql4_dbg.h"
20 #include "ql4_inline.h"
21 #include "ql4_83xx.h"
22
23 /*
24 * Driver version
25 */
26 static char qla4xxx_version_str[40];
27
28 /*
29 * SRB allocation cache
30 */
31 static struct kmem_cache *srb_cachep;
32
33 /*
34 * Module parameter information and variables
35 */
36 static int ql4xdisablesysfsboot = 1;
37 module_param(ql4xdisablesysfsboot, int, S_IRUGO | S_IWUSR);
38 MODULE_PARM_DESC(ql4xdisablesysfsboot,
39 " Set to disable exporting boot targets to sysfs.\n"
40 "\t\t 0 - Export boot targets\n"
41 "\t\t 1 - Do not export boot targets (Default)");
42
43 int ql4xdontresethba;
44 module_param(ql4xdontresethba, int, S_IRUGO | S_IWUSR);
45 MODULE_PARM_DESC(ql4xdontresethba,
46 " Don't reset the HBA for driver recovery.\n"
47 "\t\t 0 - It will reset HBA (Default)\n"
48 "\t\t 1 - It will NOT reset HBA");
49
50 int ql4xextended_error_logging;
51 module_param(ql4xextended_error_logging, int, S_IRUGO | S_IWUSR);
52 MODULE_PARM_DESC(ql4xextended_error_logging,
53 " Option to enable extended error logging.\n"
54 "\t\t 0 - no logging (Default)\n"
55 "\t\t 2 - debug logging");
56
57 int ql4xenablemsix = 1;
58 module_param(ql4xenablemsix, int, S_IRUGO|S_IWUSR);
59 MODULE_PARM_DESC(ql4xenablemsix,
60 " Set to enable MSI or MSI-X interrupt mechanism.\n"
61 "\t\t 0 = enable INTx interrupt mechanism.\n"
62 "\t\t 1 = enable MSI-X interrupt mechanism (Default).\n"
63 "\t\t 2 = enable MSI interrupt mechanism.");
64
65 #define QL4_DEF_QDEPTH 32
66 static int ql4xmaxqdepth = QL4_DEF_QDEPTH;
67 module_param(ql4xmaxqdepth, int, S_IRUGO | S_IWUSR);
68 MODULE_PARM_DESC(ql4xmaxqdepth,
69 " Maximum queue depth to report for target devices.\n"
70 "\t\t Default: 32.");
71
72 static int ql4xqfulltracking = 1;
73 module_param(ql4xqfulltracking, int, S_IRUGO | S_IWUSR);
74 MODULE_PARM_DESC(ql4xqfulltracking,
75 " Enable or disable dynamic tracking and adjustment of\n"
76 "\t\t scsi device queue depth.\n"
77 "\t\t 0 - Disable.\n"
78 "\t\t 1 - Enable. (Default)");
79
80 static int ql4xsess_recovery_tmo = QL4_SESS_RECOVERY_TMO;
81 module_param(ql4xsess_recovery_tmo, int, S_IRUGO);
82 MODULE_PARM_DESC(ql4xsess_recovery_tmo,
83 " Target Session Recovery Timeout.\n"
84 "\t\t Default: 120 sec.");
85
86 int ql4xmdcapmask = 0;
87 module_param(ql4xmdcapmask, int, S_IRUGO);
88 MODULE_PARM_DESC(ql4xmdcapmask,
89 " Set the Minidump driver capture mask level.\n"
90 "\t\t Default is 0 (firmware default capture mask)\n"
91 "\t\t Can be set to 0x3, 0x7, 0xF, 0x1F, 0x3F, 0x7F, 0xFF");
92
93 int ql4xenablemd = 1;
94 module_param(ql4xenablemd, int, S_IRUGO | S_IWUSR);
95 MODULE_PARM_DESC(ql4xenablemd,
96 " Set to enable minidump.\n"
97 "\t\t 0 - disable minidump\n"
98 "\t\t 1 - enable minidump (Default)");
99
100 static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha);
101 /*
102 * SCSI host template entry points
103 */
104 static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha);
105
106 /*
107 * iSCSI template entry points
108 */
109 static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess,
110 enum iscsi_param param, char *buf);
111 static int qla4xxx_conn_get_param(struct iscsi_cls_conn *conn,
112 enum iscsi_param param, char *buf);
113 static int qla4xxx_host_get_param(struct Scsi_Host *shost,
114 enum iscsi_host_param param, char *buf);
115 static int qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data,
116 uint32_t len);
117 static int qla4xxx_get_iface_param(struct iscsi_iface *iface,
118 enum iscsi_param_type param_type,
119 int param, char *buf);
120 static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc);
121 static struct iscsi_endpoint *qla4xxx_ep_connect(struct Scsi_Host *shost,
122 struct sockaddr *dst_addr,
123 int non_blocking);
124 static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms);
125 static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep);
126 static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep,
127 enum iscsi_param param, char *buf);
128 static int qla4xxx_conn_start(struct iscsi_cls_conn *conn);
129 static struct iscsi_cls_conn *
130 qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx);
131 static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session,
132 struct iscsi_cls_conn *cls_conn,
133 uint64_t transport_fd, int is_leading);
134 static void qla4xxx_conn_destroy(struct iscsi_cls_conn *conn);
135 static struct iscsi_cls_session *
136 qla4xxx_session_create(struct iscsi_endpoint *ep, uint16_t cmds_max,
137 uint16_t qdepth, uint32_t initial_cmdsn);
138 static void qla4xxx_session_destroy(struct iscsi_cls_session *sess);
139 static void qla4xxx_task_work(struct work_struct *wdata);
140 static int qla4xxx_alloc_pdu(struct iscsi_task *, uint8_t);
141 static int qla4xxx_task_xmit(struct iscsi_task *);
142 static void qla4xxx_task_cleanup(struct iscsi_task *);
143 static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session);
144 static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn,
145 struct iscsi_stats *stats);
146 static int qla4xxx_send_ping(struct Scsi_Host *shost, uint32_t iface_num,
147 uint32_t iface_type, uint32_t payload_size,
148 uint32_t pid, struct sockaddr *dst_addr);
149 static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx,
150 uint32_t *num_entries, char *buf);
151 static int qla4xxx_delete_chap(struct Scsi_Host *shost, uint16_t chap_tbl_idx);
152 static int qla4xxx_set_chap_entry(struct Scsi_Host *shost, void *data,
153 int len);
154 static int qla4xxx_get_host_stats(struct Scsi_Host *shost, char *buf, int len);
155
156 /*
157 * SCSI host template entry points
158 */
159 static int qla4xxx_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *cmd);
160 static int qla4xxx_eh_abort(struct scsi_cmnd *cmd);
161 static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd);
162 static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd);
163 static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd);
164 static int qla4xxx_slave_alloc(struct scsi_device *device);
165 static umode_t qla4_attr_is_visible(int param_type, int param);
166 static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type);
167
168 /*
169 * iSCSI Flash DDB sysfs entry points
170 */
171 static int
172 qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess,
173 struct iscsi_bus_flash_conn *fnode_conn,
174 void *data, int len);
175 static int
176 qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session *fnode_sess,
177 int param, char *buf);
178 static int qla4xxx_sysfs_ddb_add(struct Scsi_Host *shost, const char *buf,
179 int len);
180 static int
181 qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess);
182 static int qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess,
183 struct iscsi_bus_flash_conn *fnode_conn);
184 static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess,
185 struct iscsi_bus_flash_conn *fnode_conn);
186 static int qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess);
187
188 static struct qla4_8xxx_legacy_intr_set legacy_intr[] =
189 QLA82XX_LEGACY_INTR_CONFIG;
190
191 static struct scsi_host_template qla4xxx_driver_template = {
192 .module = THIS_MODULE,
193 .name = DRIVER_NAME,
194 .proc_name = DRIVER_NAME,
195 .queuecommand = qla4xxx_queuecommand,
196
197 .eh_abort_handler = qla4xxx_eh_abort,
198 .eh_device_reset_handler = qla4xxx_eh_device_reset,
199 .eh_target_reset_handler = qla4xxx_eh_target_reset,
200 .eh_host_reset_handler = qla4xxx_eh_host_reset,
201 .eh_timed_out = qla4xxx_eh_cmd_timed_out,
202
203 .slave_alloc = qla4xxx_slave_alloc,
204 .change_queue_depth = scsi_change_queue_depth,
205
206 .this_id = -1,
207 .cmd_per_lun = 3,
208 .use_clustering = ENABLE_CLUSTERING,
209 .sg_tablesize = SG_ALL,
210
211 .max_sectors = 0xFFFF,
212 .shost_attrs = qla4xxx_host_attrs,
213 .host_reset = qla4xxx_host_reset,
214 .vendor_id = SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC,
215 .use_blk_tags = 1,
216 };
217
218 static struct iscsi_transport qla4xxx_iscsi_transport = {
219 .owner = THIS_MODULE,
220 .name = DRIVER_NAME,
221 .caps = CAP_TEXT_NEGO |
222 CAP_DATA_PATH_OFFLOAD | CAP_HDRDGST |
223 CAP_DATADGST | CAP_LOGIN_OFFLOAD |
224 CAP_MULTI_R2T,
225 .attr_is_visible = qla4_attr_is_visible,
226 .create_session = qla4xxx_session_create,
227 .destroy_session = qla4xxx_session_destroy,
228 .start_conn = qla4xxx_conn_start,
229 .create_conn = qla4xxx_conn_create,
230 .bind_conn = qla4xxx_conn_bind,
231 .stop_conn = iscsi_conn_stop,
232 .destroy_conn = qla4xxx_conn_destroy,
233 .set_param = iscsi_set_param,
234 .get_conn_param = qla4xxx_conn_get_param,
235 .get_session_param = qla4xxx_session_get_param,
236 .get_ep_param = qla4xxx_get_ep_param,
237 .ep_connect = qla4xxx_ep_connect,
238 .ep_poll = qla4xxx_ep_poll,
239 .ep_disconnect = qla4xxx_ep_disconnect,
240 .get_stats = qla4xxx_conn_get_stats,
241 .send_pdu = iscsi_conn_send_pdu,
242 .xmit_task = qla4xxx_task_xmit,
243 .cleanup_task = qla4xxx_task_cleanup,
244 .alloc_pdu = qla4xxx_alloc_pdu,
245
246 .get_host_param = qla4xxx_host_get_param,
247 .set_iface_param = qla4xxx_iface_set_param,
248 .get_iface_param = qla4xxx_get_iface_param,
249 .bsg_request = qla4xxx_bsg_request,
250 .send_ping = qla4xxx_send_ping,
251 .get_chap = qla4xxx_get_chap_list,
252 .delete_chap = qla4xxx_delete_chap,
253 .set_chap = qla4xxx_set_chap_entry,
254 .get_flashnode_param = qla4xxx_sysfs_ddb_get_param,
255 .set_flashnode_param = qla4xxx_sysfs_ddb_set_param,
256 .new_flashnode = qla4xxx_sysfs_ddb_add,
257 .del_flashnode = qla4xxx_sysfs_ddb_delete,
258 .login_flashnode = qla4xxx_sysfs_ddb_login,
259 .logout_flashnode = qla4xxx_sysfs_ddb_logout,
260 .logout_flashnode_sid = qla4xxx_sysfs_ddb_logout_sid,
261 .get_host_stats = qla4xxx_get_host_stats,
262 };
263
264 static struct scsi_transport_template *qla4xxx_scsi_transport;
265
266 static int qla4xxx_send_ping(struct Scsi_Host *shost, uint32_t iface_num,
267 uint32_t iface_type, uint32_t payload_size,
268 uint32_t pid, struct sockaddr *dst_addr)
269 {
270 struct scsi_qla_host *ha = to_qla_host(shost);
271 struct sockaddr_in *addr;
272 struct sockaddr_in6 *addr6;
273 uint32_t options = 0;
274 uint8_t ipaddr[IPv6_ADDR_LEN];
275 int rval;
276
277 memset(ipaddr, 0, IPv6_ADDR_LEN);
278 /* IPv4 to IPv4 */
279 if ((iface_type == ISCSI_IFACE_TYPE_IPV4) &&
280 (dst_addr->sa_family == AF_INET)) {
281 addr = (struct sockaddr_in *)dst_addr;
282 memcpy(ipaddr, &addr->sin_addr.s_addr, IP_ADDR_LEN);
283 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv4 Ping src: %pI4 "
284 "dest: %pI4\n", __func__,
285 &ha->ip_config.ip_address, ipaddr));
286 rval = qla4xxx_ping_iocb(ha, options, payload_size, pid,
287 ipaddr);
288 if (rval)
289 rval = -EINVAL;
290 } else if ((iface_type == ISCSI_IFACE_TYPE_IPV6) &&
291 (dst_addr->sa_family == AF_INET6)) {
292 /* IPv6 to IPv6 */
293 addr6 = (struct sockaddr_in6 *)dst_addr;
294 memcpy(ipaddr, &addr6->sin6_addr.in6_u.u6_addr8, IPv6_ADDR_LEN);
295
296 options |= PING_IPV6_PROTOCOL_ENABLE;
297
298 /* Ping using LinkLocal address */
299 if ((iface_num == 0) || (iface_num == 1)) {
300 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: LinkLocal Ping "
301 "src: %pI6 dest: %pI6\n", __func__,
302 &ha->ip_config.ipv6_link_local_addr,
303 ipaddr));
304 options |= PING_IPV6_LINKLOCAL_ADDR;
305 rval = qla4xxx_ping_iocb(ha, options, payload_size,
306 pid, ipaddr);
307 } else {
308 ql4_printk(KERN_WARNING, ha, "%s: iface num = %d "
309 "not supported\n", __func__, iface_num);
310 rval = -ENOSYS;
311 goto exit_send_ping;
312 }
313
314 /*
315 * If ping using LinkLocal address fails, try ping using
316 * IPv6 address
317 */
318 if (rval != QLA_SUCCESS) {
319 options &= ~PING_IPV6_LINKLOCAL_ADDR;
320 if (iface_num == 0) {
321 options |= PING_IPV6_ADDR0;
322 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv6 "
323 "Ping src: %pI6 "
324 "dest: %pI6\n", __func__,
325 &ha->ip_config.ipv6_addr0,
326 ipaddr));
327 } else if (iface_num == 1) {
328 options |= PING_IPV6_ADDR1;
329 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv6 "
330 "Ping src: %pI6 "
331 "dest: %pI6\n", __func__,
332 &ha->ip_config.ipv6_addr1,
333 ipaddr));
334 }
335 rval = qla4xxx_ping_iocb(ha, options, payload_size,
336 pid, ipaddr);
337 if (rval)
338 rval = -EINVAL;
339 }
340 } else
341 rval = -ENOSYS;
342 exit_send_ping:
343 return rval;
344 }
345
346 static umode_t qla4_attr_is_visible(int param_type, int param)
347 {
348 switch (param_type) {
349 case ISCSI_HOST_PARAM:
350 switch (param) {
351 case ISCSI_HOST_PARAM_HWADDRESS:
352 case ISCSI_HOST_PARAM_IPADDRESS:
353 case ISCSI_HOST_PARAM_INITIATOR_NAME:
354 case ISCSI_HOST_PARAM_PORT_STATE:
355 case ISCSI_HOST_PARAM_PORT_SPEED:
356 return S_IRUGO;
357 default:
358 return 0;
359 }
360 case ISCSI_PARAM:
361 switch (param) {
362 case ISCSI_PARAM_PERSISTENT_ADDRESS:
363 case ISCSI_PARAM_PERSISTENT_PORT:
364 case ISCSI_PARAM_CONN_ADDRESS:
365 case ISCSI_PARAM_CONN_PORT:
366 case ISCSI_PARAM_TARGET_NAME:
367 case ISCSI_PARAM_TPGT:
368 case ISCSI_PARAM_TARGET_ALIAS:
369 case ISCSI_PARAM_MAX_BURST:
370 case ISCSI_PARAM_MAX_R2T:
371 case ISCSI_PARAM_FIRST_BURST:
372 case ISCSI_PARAM_MAX_RECV_DLENGTH:
373 case ISCSI_PARAM_MAX_XMIT_DLENGTH:
374 case ISCSI_PARAM_IFACE_NAME:
375 case ISCSI_PARAM_CHAP_OUT_IDX:
376 case ISCSI_PARAM_CHAP_IN_IDX:
377 case ISCSI_PARAM_USERNAME:
378 case ISCSI_PARAM_PASSWORD:
379 case ISCSI_PARAM_USERNAME_IN:
380 case ISCSI_PARAM_PASSWORD_IN:
381 case ISCSI_PARAM_AUTO_SND_TGT_DISABLE:
382 case ISCSI_PARAM_DISCOVERY_SESS:
383 case ISCSI_PARAM_PORTAL_TYPE:
384 case ISCSI_PARAM_CHAP_AUTH_EN:
385 case ISCSI_PARAM_DISCOVERY_LOGOUT_EN:
386 case ISCSI_PARAM_BIDI_CHAP_EN:
387 case ISCSI_PARAM_DISCOVERY_AUTH_OPTIONAL:
388 case ISCSI_PARAM_DEF_TIME2WAIT:
389 case ISCSI_PARAM_DEF_TIME2RETAIN:
390 case ISCSI_PARAM_HDRDGST_EN:
391 case ISCSI_PARAM_DATADGST_EN:
392 case ISCSI_PARAM_INITIAL_R2T_EN:
393 case ISCSI_PARAM_IMM_DATA_EN:
394 case ISCSI_PARAM_PDU_INORDER_EN:
395 case ISCSI_PARAM_DATASEQ_INORDER_EN:
396 case ISCSI_PARAM_MAX_SEGMENT_SIZE:
397 case ISCSI_PARAM_TCP_TIMESTAMP_STAT:
398 case ISCSI_PARAM_TCP_WSF_DISABLE:
399 case ISCSI_PARAM_TCP_NAGLE_DISABLE:
400 case ISCSI_PARAM_TCP_TIMER_SCALE:
401 case ISCSI_PARAM_TCP_TIMESTAMP_EN:
402 case ISCSI_PARAM_TCP_XMIT_WSF:
403 case ISCSI_PARAM_TCP_RECV_WSF:
404 case ISCSI_PARAM_IP_FRAGMENT_DISABLE:
405 case ISCSI_PARAM_IPV4_TOS:
406 case ISCSI_PARAM_IPV6_TC:
407 case ISCSI_PARAM_IPV6_FLOW_LABEL:
408 case ISCSI_PARAM_IS_FW_ASSIGNED_IPV6:
409 case ISCSI_PARAM_KEEPALIVE_TMO:
410 case ISCSI_PARAM_LOCAL_PORT:
411 case ISCSI_PARAM_ISID:
412 case ISCSI_PARAM_TSID:
413 case ISCSI_PARAM_DEF_TASKMGMT_TMO:
414 case ISCSI_PARAM_ERL:
415 case ISCSI_PARAM_STATSN:
416 case ISCSI_PARAM_EXP_STATSN:
417 case ISCSI_PARAM_DISCOVERY_PARENT_IDX:
418 case ISCSI_PARAM_DISCOVERY_PARENT_TYPE:
419 case ISCSI_PARAM_LOCAL_IPADDR:
420 return S_IRUGO;
421 default:
422 return 0;
423 }
424 case ISCSI_NET_PARAM:
425 switch (param) {
426 case ISCSI_NET_PARAM_IPV4_ADDR:
427 case ISCSI_NET_PARAM_IPV4_SUBNET:
428 case ISCSI_NET_PARAM_IPV4_GW:
429 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
430 case ISCSI_NET_PARAM_IFACE_ENABLE:
431 case ISCSI_NET_PARAM_IPV6_LINKLOCAL:
432 case ISCSI_NET_PARAM_IPV6_ADDR:
433 case ISCSI_NET_PARAM_IPV6_ROUTER:
434 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG:
435 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG:
436 case ISCSI_NET_PARAM_VLAN_ID:
437 case ISCSI_NET_PARAM_VLAN_PRIORITY:
438 case ISCSI_NET_PARAM_VLAN_ENABLED:
439 case ISCSI_NET_PARAM_MTU:
440 case ISCSI_NET_PARAM_PORT:
441 case ISCSI_NET_PARAM_IPADDR_STATE:
442 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_STATE:
443 case ISCSI_NET_PARAM_IPV6_ROUTER_STATE:
444 case ISCSI_NET_PARAM_DELAYED_ACK_EN:
445 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE:
446 case ISCSI_NET_PARAM_TCP_WSF_DISABLE:
447 case ISCSI_NET_PARAM_TCP_WSF:
448 case ISCSI_NET_PARAM_TCP_TIMER_SCALE:
449 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN:
450 case ISCSI_NET_PARAM_CACHE_ID:
451 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN:
452 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN:
453 case ISCSI_NET_PARAM_IPV4_TOS_EN:
454 case ISCSI_NET_PARAM_IPV4_TOS:
455 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN:
456 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN:
457 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID:
458 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN:
459 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN:
460 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID:
461 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN:
462 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE:
463 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN:
464 case ISCSI_NET_PARAM_REDIRECT_EN:
465 case ISCSI_NET_PARAM_IPV4_TTL:
466 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN:
467 case ISCSI_NET_PARAM_IPV6_MLD_EN:
468 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL:
469 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS:
470 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT:
471 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO:
472 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME:
473 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO:
474 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT:
475 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU:
476 return S_IRUGO;
477 default:
478 return 0;
479 }
480 case ISCSI_IFACE_PARAM:
481 switch (param) {
482 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO:
483 case ISCSI_IFACE_PARAM_HDRDGST_EN:
484 case ISCSI_IFACE_PARAM_DATADGST_EN:
485 case ISCSI_IFACE_PARAM_IMM_DATA_EN:
486 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN:
487 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN:
488 case ISCSI_IFACE_PARAM_PDU_INORDER_EN:
489 case ISCSI_IFACE_PARAM_ERL:
490 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH:
491 case ISCSI_IFACE_PARAM_FIRST_BURST:
492 case ISCSI_IFACE_PARAM_MAX_R2T:
493 case ISCSI_IFACE_PARAM_MAX_BURST:
494 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN:
495 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN:
496 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL:
497 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN:
498 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN:
499 case ISCSI_IFACE_PARAM_INITIATOR_NAME:
500 return S_IRUGO;
501 default:
502 return 0;
503 }
504 case ISCSI_FLASHNODE_PARAM:
505 switch (param) {
506 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6:
507 case ISCSI_FLASHNODE_PORTAL_TYPE:
508 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE:
509 case ISCSI_FLASHNODE_DISCOVERY_SESS:
510 case ISCSI_FLASHNODE_ENTRY_EN:
511 case ISCSI_FLASHNODE_HDR_DGST_EN:
512 case ISCSI_FLASHNODE_DATA_DGST_EN:
513 case ISCSI_FLASHNODE_IMM_DATA_EN:
514 case ISCSI_FLASHNODE_INITIAL_R2T_EN:
515 case ISCSI_FLASHNODE_DATASEQ_INORDER:
516 case ISCSI_FLASHNODE_PDU_INORDER:
517 case ISCSI_FLASHNODE_CHAP_AUTH_EN:
518 case ISCSI_FLASHNODE_SNACK_REQ_EN:
519 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN:
520 case ISCSI_FLASHNODE_BIDI_CHAP_EN:
521 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL:
522 case ISCSI_FLASHNODE_ERL:
523 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT:
524 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE:
525 case ISCSI_FLASHNODE_TCP_WSF_DISABLE:
526 case ISCSI_FLASHNODE_TCP_TIMER_SCALE:
527 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN:
528 case ISCSI_FLASHNODE_IP_FRAG_DISABLE:
529 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH:
530 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH:
531 case ISCSI_FLASHNODE_FIRST_BURST:
532 case ISCSI_FLASHNODE_DEF_TIME2WAIT:
533 case ISCSI_FLASHNODE_DEF_TIME2RETAIN:
534 case ISCSI_FLASHNODE_MAX_R2T:
535 case ISCSI_FLASHNODE_KEEPALIVE_TMO:
536 case ISCSI_FLASHNODE_ISID:
537 case ISCSI_FLASHNODE_TSID:
538 case ISCSI_FLASHNODE_PORT:
539 case ISCSI_FLASHNODE_MAX_BURST:
540 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO:
541 case ISCSI_FLASHNODE_IPADDR:
542 case ISCSI_FLASHNODE_ALIAS:
543 case ISCSI_FLASHNODE_REDIRECT_IPADDR:
544 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE:
545 case ISCSI_FLASHNODE_LOCAL_PORT:
546 case ISCSI_FLASHNODE_IPV4_TOS:
547 case ISCSI_FLASHNODE_IPV6_TC:
548 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL:
549 case ISCSI_FLASHNODE_NAME:
550 case ISCSI_FLASHNODE_TPGT:
551 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6:
552 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX:
553 case ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE:
554 case ISCSI_FLASHNODE_TCP_XMIT_WSF:
555 case ISCSI_FLASHNODE_TCP_RECV_WSF:
556 case ISCSI_FLASHNODE_CHAP_OUT_IDX:
557 case ISCSI_FLASHNODE_USERNAME:
558 case ISCSI_FLASHNODE_PASSWORD:
559 case ISCSI_FLASHNODE_STATSN:
560 case ISCSI_FLASHNODE_EXP_STATSN:
561 case ISCSI_FLASHNODE_IS_BOOT_TGT:
562 return S_IRUGO;
563 default:
564 return 0;
565 }
566 }
567
568 return 0;
569 }
570
571 /**
572 * qla4xxx_create chap_list - Create CHAP list from FLASH
573 * @ha: pointer to adapter structure
574 *
575 * Read flash and make a list of CHAP entries, during login when a CHAP entry
576 * is received, it will be checked in this list. If entry exist then the CHAP
577 * entry index is set in the DDB. If CHAP entry does not exist in this list
578 * then a new entry is added in FLASH in CHAP table and the index obtained is
579 * used in the DDB.
580 **/
581 static void qla4xxx_create_chap_list(struct scsi_qla_host *ha)
582 {
583 int rval = 0;
584 uint8_t *chap_flash_data = NULL;
585 uint32_t offset;
586 dma_addr_t chap_dma;
587 uint32_t chap_size = 0;
588
589 if (is_qla40XX(ha))
590 chap_size = MAX_CHAP_ENTRIES_40XX *
591 sizeof(struct ql4_chap_table);
592 else /* Single region contains CHAP info for both
593 * ports which is divided into half for each port.
594 */
595 chap_size = ha->hw.flt_chap_size / 2;
596
597 chap_flash_data = dma_alloc_coherent(&ha->pdev->dev, chap_size,
598 &chap_dma, GFP_KERNEL);
599 if (!chap_flash_data) {
600 ql4_printk(KERN_ERR, ha, "No memory for chap_flash_data\n");
601 return;
602 }
603
604 if (is_qla40XX(ha)) {
605 offset = FLASH_CHAP_OFFSET;
606 } else {
607 offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2);
608 if (ha->port_num == 1)
609 offset += chap_size;
610 }
611
612 rval = qla4xxx_get_flash(ha, chap_dma, offset, chap_size);
613 if (rval != QLA_SUCCESS)
614 goto exit_chap_list;
615
616 if (ha->chap_list == NULL)
617 ha->chap_list = vmalloc(chap_size);
618 if (ha->chap_list == NULL) {
619 ql4_printk(KERN_ERR, ha, "No memory for ha->chap_list\n");
620 goto exit_chap_list;
621 }
622
623 memset(ha->chap_list, 0, chap_size);
624 memcpy(ha->chap_list, chap_flash_data, chap_size);
625
626 exit_chap_list:
627 dma_free_coherent(&ha->pdev->dev, chap_size, chap_flash_data, chap_dma);
628 }
629
630 static int qla4xxx_get_chap_by_index(struct scsi_qla_host *ha,
631 int16_t chap_index,
632 struct ql4_chap_table **chap_entry)
633 {
634 int rval = QLA_ERROR;
635 int max_chap_entries;
636
637 if (!ha->chap_list) {
638 ql4_printk(KERN_ERR, ha, "CHAP table cache is empty!\n");
639 rval = QLA_ERROR;
640 goto exit_get_chap;
641 }
642
643 if (is_qla80XX(ha))
644 max_chap_entries = (ha->hw.flt_chap_size / 2) /
645 sizeof(struct ql4_chap_table);
646 else
647 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
648
649 if (chap_index > max_chap_entries) {
650 ql4_printk(KERN_ERR, ha, "Invalid Chap index\n");
651 rval = QLA_ERROR;
652 goto exit_get_chap;
653 }
654
655 *chap_entry = (struct ql4_chap_table *)ha->chap_list + chap_index;
656 if ((*chap_entry)->cookie !=
657 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) {
658 rval = QLA_ERROR;
659 *chap_entry = NULL;
660 } else {
661 rval = QLA_SUCCESS;
662 }
663
664 exit_get_chap:
665 return rval;
666 }
667
668 /**
669 * qla4xxx_find_free_chap_index - Find the first free chap index
670 * @ha: pointer to adapter structure
671 * @chap_index: CHAP index to be returned
672 *
673 * Find the first free chap index available in the chap table
674 *
675 * Note: Caller should acquire the chap lock before getting here.
676 **/
677 static int qla4xxx_find_free_chap_index(struct scsi_qla_host *ha,
678 uint16_t *chap_index)
679 {
680 int i, rval;
681 int free_index = -1;
682 int max_chap_entries = 0;
683 struct ql4_chap_table *chap_table;
684
685 if (is_qla80XX(ha))
686 max_chap_entries = (ha->hw.flt_chap_size / 2) /
687 sizeof(struct ql4_chap_table);
688 else
689 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
690
691 if (!ha->chap_list) {
692 ql4_printk(KERN_ERR, ha, "CHAP table cache is empty!\n");
693 rval = QLA_ERROR;
694 goto exit_find_chap;
695 }
696
697 for (i = 0; i < max_chap_entries; i++) {
698 chap_table = (struct ql4_chap_table *)ha->chap_list + i;
699
700 if ((chap_table->cookie !=
701 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) &&
702 (i > MAX_RESRV_CHAP_IDX)) {
703 free_index = i;
704 break;
705 }
706 }
707
708 if (free_index != -1) {
709 *chap_index = free_index;
710 rval = QLA_SUCCESS;
711 } else {
712 rval = QLA_ERROR;
713 }
714
715 exit_find_chap:
716 return rval;
717 }
718
719 static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx,
720 uint32_t *num_entries, char *buf)
721 {
722 struct scsi_qla_host *ha = to_qla_host(shost);
723 struct ql4_chap_table *chap_table;
724 struct iscsi_chap_rec *chap_rec;
725 int max_chap_entries = 0;
726 int valid_chap_entries = 0;
727 int ret = 0, i;
728
729 if (is_qla80XX(ha))
730 max_chap_entries = (ha->hw.flt_chap_size / 2) /
731 sizeof(struct ql4_chap_table);
732 else
733 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
734
735 ql4_printk(KERN_INFO, ha, "%s: num_entries = %d, CHAP idx = %d\n",
736 __func__, *num_entries, chap_tbl_idx);
737
738 if (!buf) {
739 ret = -ENOMEM;
740 goto exit_get_chap_list;
741 }
742
743 qla4xxx_create_chap_list(ha);
744
745 chap_rec = (struct iscsi_chap_rec *) buf;
746 mutex_lock(&ha->chap_sem);
747 for (i = chap_tbl_idx; i < max_chap_entries; i++) {
748 chap_table = (struct ql4_chap_table *)ha->chap_list + i;
749 if (chap_table->cookie !=
750 __constant_cpu_to_le16(CHAP_VALID_COOKIE))
751 continue;
752
753 chap_rec->chap_tbl_idx = i;
754 strlcpy(chap_rec->username, chap_table->name,
755 ISCSI_CHAP_AUTH_NAME_MAX_LEN);
756 strlcpy(chap_rec->password, chap_table->secret,
757 QL4_CHAP_MAX_SECRET_LEN);
758 chap_rec->password_length = chap_table->secret_len;
759
760 if (chap_table->flags & BIT_7) /* local */
761 chap_rec->chap_type = CHAP_TYPE_OUT;
762
763 if (chap_table->flags & BIT_6) /* peer */
764 chap_rec->chap_type = CHAP_TYPE_IN;
765
766 chap_rec++;
767
768 valid_chap_entries++;
769 if (valid_chap_entries == *num_entries)
770 break;
771 else
772 continue;
773 }
774 mutex_unlock(&ha->chap_sem);
775
776 exit_get_chap_list:
777 ql4_printk(KERN_INFO, ha, "%s: Valid CHAP Entries = %d\n",
778 __func__, valid_chap_entries);
779 *num_entries = valid_chap_entries;
780 return ret;
781 }
782
783 static int __qla4xxx_is_chap_active(struct device *dev, void *data)
784 {
785 int ret = 0;
786 uint16_t *chap_tbl_idx = (uint16_t *) data;
787 struct iscsi_cls_session *cls_session;
788 struct iscsi_session *sess;
789 struct ddb_entry *ddb_entry;
790
791 if (!iscsi_is_session_dev(dev))
792 goto exit_is_chap_active;
793
794 cls_session = iscsi_dev_to_session(dev);
795 sess = cls_session->dd_data;
796 ddb_entry = sess->dd_data;
797
798 if (iscsi_session_chkready(cls_session))
799 goto exit_is_chap_active;
800
801 if (ddb_entry->chap_tbl_idx == *chap_tbl_idx)
802 ret = 1;
803
804 exit_is_chap_active:
805 return ret;
806 }
807
808 static int qla4xxx_is_chap_active(struct Scsi_Host *shost,
809 uint16_t chap_tbl_idx)
810 {
811 int ret = 0;
812
813 ret = device_for_each_child(&shost->shost_gendev, &chap_tbl_idx,
814 __qla4xxx_is_chap_active);
815
816 return ret;
817 }
818
819 static int qla4xxx_delete_chap(struct Scsi_Host *shost, uint16_t chap_tbl_idx)
820 {
821 struct scsi_qla_host *ha = to_qla_host(shost);
822 struct ql4_chap_table *chap_table;
823 dma_addr_t chap_dma;
824 int max_chap_entries = 0;
825 uint32_t offset = 0;
826 uint32_t chap_size;
827 int ret = 0;
828
829 chap_table = dma_pool_alloc(ha->chap_dma_pool, GFP_KERNEL, &chap_dma);
830 if (chap_table == NULL)
831 return -ENOMEM;
832
833 memset(chap_table, 0, sizeof(struct ql4_chap_table));
834
835 if (is_qla80XX(ha))
836 max_chap_entries = (ha->hw.flt_chap_size / 2) /
837 sizeof(struct ql4_chap_table);
838 else
839 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
840
841 if (chap_tbl_idx > max_chap_entries) {
842 ret = -EINVAL;
843 goto exit_delete_chap;
844 }
845
846 /* Check if chap index is in use.
847 * If chap is in use don't delet chap entry */
848 ret = qla4xxx_is_chap_active(shost, chap_tbl_idx);
849 if (ret) {
850 ql4_printk(KERN_INFO, ha, "CHAP entry %d is in use, cannot "
851 "delete from flash\n", chap_tbl_idx);
852 ret = -EBUSY;
853 goto exit_delete_chap;
854 }
855
856 chap_size = sizeof(struct ql4_chap_table);
857 if (is_qla40XX(ha))
858 offset = FLASH_CHAP_OFFSET | (chap_tbl_idx * chap_size);
859 else {
860 offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2);
861 /* flt_chap_size is CHAP table size for both ports
862 * so divide it by 2 to calculate the offset for second port
863 */
864 if (ha->port_num == 1)
865 offset += (ha->hw.flt_chap_size / 2);
866 offset += (chap_tbl_idx * chap_size);
867 }
868
869 ret = qla4xxx_get_flash(ha, chap_dma, offset, chap_size);
870 if (ret != QLA_SUCCESS) {
871 ret = -EINVAL;
872 goto exit_delete_chap;
873 }
874
875 DEBUG2(ql4_printk(KERN_INFO, ha, "Chap Cookie: x%x\n",
876 __le16_to_cpu(chap_table->cookie)));
877
878 if (__le16_to_cpu(chap_table->cookie) != CHAP_VALID_COOKIE) {
879 ql4_printk(KERN_ERR, ha, "No valid chap entry found\n");
880 goto exit_delete_chap;
881 }
882
883 chap_table->cookie = __constant_cpu_to_le16(0xFFFF);
884
885 offset = FLASH_CHAP_OFFSET |
886 (chap_tbl_idx * sizeof(struct ql4_chap_table));
887 ret = qla4xxx_set_flash(ha, chap_dma, offset, chap_size,
888 FLASH_OPT_RMW_COMMIT);
889 if (ret == QLA_SUCCESS && ha->chap_list) {
890 mutex_lock(&ha->chap_sem);
891 /* Update ha chap_list cache */
892 memcpy((struct ql4_chap_table *)ha->chap_list + chap_tbl_idx,
893 chap_table, sizeof(struct ql4_chap_table));
894 mutex_unlock(&ha->chap_sem);
895 }
896 if (ret != QLA_SUCCESS)
897 ret = -EINVAL;
898
899 exit_delete_chap:
900 dma_pool_free(ha->chap_dma_pool, chap_table, chap_dma);
901 return ret;
902 }
903
904 /**
905 * qla4xxx_set_chap_entry - Make chap entry with given information
906 * @shost: pointer to host
907 * @data: chap info - credentials, index and type to make chap entry
908 * @len: length of data
909 *
910 * Add or update chap entry with the given information
911 **/
912 static int qla4xxx_set_chap_entry(struct Scsi_Host *shost, void *data, int len)
913 {
914 struct scsi_qla_host *ha = to_qla_host(shost);
915 struct iscsi_chap_rec chap_rec;
916 struct ql4_chap_table *chap_entry = NULL;
917 struct iscsi_param_info *param_info;
918 struct nlattr *attr;
919 int max_chap_entries = 0;
920 int type;
921 int rem = len;
922 int rc = 0;
923 int size;
924
925 memset(&chap_rec, 0, sizeof(chap_rec));
926
927 nla_for_each_attr(attr, data, len, rem) {
928 param_info = nla_data(attr);
929
930 switch (param_info->param) {
931 case ISCSI_CHAP_PARAM_INDEX:
932 chap_rec.chap_tbl_idx = *(uint16_t *)param_info->value;
933 break;
934 case ISCSI_CHAP_PARAM_CHAP_TYPE:
935 chap_rec.chap_type = param_info->value[0];
936 break;
937 case ISCSI_CHAP_PARAM_USERNAME:
938 size = min_t(size_t, sizeof(chap_rec.username),
939 param_info->len);
940 memcpy(chap_rec.username, param_info->value, size);
941 break;
942 case ISCSI_CHAP_PARAM_PASSWORD:
943 size = min_t(size_t, sizeof(chap_rec.password),
944 param_info->len);
945 memcpy(chap_rec.password, param_info->value, size);
946 break;
947 case ISCSI_CHAP_PARAM_PASSWORD_LEN:
948 chap_rec.password_length = param_info->value[0];
949 break;
950 default:
951 ql4_printk(KERN_ERR, ha,
952 "%s: No such sysfs attribute\n", __func__);
953 rc = -ENOSYS;
954 goto exit_set_chap;
955 };
956 }
957
958 if (chap_rec.chap_type == CHAP_TYPE_IN)
959 type = BIDI_CHAP;
960 else
961 type = LOCAL_CHAP;
962
963 if (is_qla80XX(ha))
964 max_chap_entries = (ha->hw.flt_chap_size / 2) /
965 sizeof(struct ql4_chap_table);
966 else
967 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
968
969 mutex_lock(&ha->chap_sem);
970 if (chap_rec.chap_tbl_idx < max_chap_entries) {
971 rc = qla4xxx_get_chap_by_index(ha, chap_rec.chap_tbl_idx,
972 &chap_entry);
973 if (!rc) {
974 if (!(type == qla4xxx_get_chap_type(chap_entry))) {
975 ql4_printk(KERN_INFO, ha,
976 "Type mismatch for CHAP entry %d\n",
977 chap_rec.chap_tbl_idx);
978 rc = -EINVAL;
979 goto exit_unlock_chap;
980 }
981
982 /* If chap index is in use then don't modify it */
983 rc = qla4xxx_is_chap_active(shost,
984 chap_rec.chap_tbl_idx);
985 if (rc) {
986 ql4_printk(KERN_INFO, ha,
987 "CHAP entry %d is in use\n",
988 chap_rec.chap_tbl_idx);
989 rc = -EBUSY;
990 goto exit_unlock_chap;
991 }
992 }
993 } else {
994 rc = qla4xxx_find_free_chap_index(ha, &chap_rec.chap_tbl_idx);
995 if (rc) {
996 ql4_printk(KERN_INFO, ha, "CHAP entry not available\n");
997 rc = -EBUSY;
998 goto exit_unlock_chap;
999 }
1000 }
1001
1002 rc = qla4xxx_set_chap(ha, chap_rec.username, chap_rec.password,
1003 chap_rec.chap_tbl_idx, type);
1004
1005 exit_unlock_chap:
1006 mutex_unlock(&ha->chap_sem);
1007
1008 exit_set_chap:
1009 return rc;
1010 }
1011
1012
1013 static int qla4xxx_get_host_stats(struct Scsi_Host *shost, char *buf, int len)
1014 {
1015 struct scsi_qla_host *ha = to_qla_host(shost);
1016 struct iscsi_offload_host_stats *host_stats = NULL;
1017 int host_stats_size;
1018 int ret = 0;
1019 int ddb_idx = 0;
1020 struct ql_iscsi_stats *ql_iscsi_stats = NULL;
1021 int stats_size;
1022 dma_addr_t iscsi_stats_dma;
1023
1024 DEBUG2(ql4_printk(KERN_INFO, ha, "Func: %s\n", __func__));
1025
1026 host_stats_size = sizeof(struct iscsi_offload_host_stats);
1027
1028 if (host_stats_size != len) {
1029 ql4_printk(KERN_INFO, ha, "%s: host_stats size mismatch expected = %d, is = %d\n",
1030 __func__, len, host_stats_size);
1031 ret = -EINVAL;
1032 goto exit_host_stats;
1033 }
1034 host_stats = (struct iscsi_offload_host_stats *)buf;
1035
1036 if (!buf) {
1037 ret = -ENOMEM;
1038 goto exit_host_stats;
1039 }
1040
1041 stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats));
1042
1043 ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size,
1044 &iscsi_stats_dma, GFP_KERNEL);
1045 if (!ql_iscsi_stats) {
1046 ql4_printk(KERN_ERR, ha,
1047 "Unable to allocate memory for iscsi stats\n");
1048 ret = -ENOMEM;
1049 goto exit_host_stats;
1050 }
1051
1052 ret = qla4xxx_get_mgmt_data(ha, ddb_idx, stats_size,
1053 iscsi_stats_dma);
1054 if (ret != QLA_SUCCESS) {
1055 ql4_printk(KERN_ERR, ha,
1056 "Unable to retrieve iscsi stats\n");
1057 ret = -EIO;
1058 goto exit_host_stats;
1059 }
1060 host_stats->mactx_frames = le64_to_cpu(ql_iscsi_stats->mac_tx_frames);
1061 host_stats->mactx_bytes = le64_to_cpu(ql_iscsi_stats->mac_tx_bytes);
1062 host_stats->mactx_multicast_frames =
1063 le64_to_cpu(ql_iscsi_stats->mac_tx_multicast_frames);
1064 host_stats->mactx_broadcast_frames =
1065 le64_to_cpu(ql_iscsi_stats->mac_tx_broadcast_frames);
1066 host_stats->mactx_pause_frames =
1067 le64_to_cpu(ql_iscsi_stats->mac_tx_pause_frames);
1068 host_stats->mactx_control_frames =
1069 le64_to_cpu(ql_iscsi_stats->mac_tx_control_frames);
1070 host_stats->mactx_deferral =
1071 le64_to_cpu(ql_iscsi_stats->mac_tx_deferral);
1072 host_stats->mactx_excess_deferral =
1073 le64_to_cpu(ql_iscsi_stats->mac_tx_excess_deferral);
1074 host_stats->mactx_late_collision =
1075 le64_to_cpu(ql_iscsi_stats->mac_tx_late_collision);
1076 host_stats->mactx_abort = le64_to_cpu(ql_iscsi_stats->mac_tx_abort);
1077 host_stats->mactx_single_collision =
1078 le64_to_cpu(ql_iscsi_stats->mac_tx_single_collision);
1079 host_stats->mactx_multiple_collision =
1080 le64_to_cpu(ql_iscsi_stats->mac_tx_multiple_collision);
1081 host_stats->mactx_collision =
1082 le64_to_cpu(ql_iscsi_stats->mac_tx_collision);
1083 host_stats->mactx_frames_dropped =
1084 le64_to_cpu(ql_iscsi_stats->mac_tx_frames_dropped);
1085 host_stats->mactx_jumbo_frames =
1086 le64_to_cpu(ql_iscsi_stats->mac_tx_jumbo_frames);
1087 host_stats->macrx_frames = le64_to_cpu(ql_iscsi_stats->mac_rx_frames);
1088 host_stats->macrx_bytes = le64_to_cpu(ql_iscsi_stats->mac_rx_bytes);
1089 host_stats->macrx_unknown_control_frames =
1090 le64_to_cpu(ql_iscsi_stats->mac_rx_unknown_control_frames);
1091 host_stats->macrx_pause_frames =
1092 le64_to_cpu(ql_iscsi_stats->mac_rx_pause_frames);
1093 host_stats->macrx_control_frames =
1094 le64_to_cpu(ql_iscsi_stats->mac_rx_control_frames);
1095 host_stats->macrx_dribble =
1096 le64_to_cpu(ql_iscsi_stats->mac_rx_dribble);
1097 host_stats->macrx_frame_length_error =
1098 le64_to_cpu(ql_iscsi_stats->mac_rx_frame_length_error);
1099 host_stats->macrx_jabber = le64_to_cpu(ql_iscsi_stats->mac_rx_jabber);
1100 host_stats->macrx_carrier_sense_error =
1101 le64_to_cpu(ql_iscsi_stats->mac_rx_carrier_sense_error);
1102 host_stats->macrx_frame_discarded =
1103 le64_to_cpu(ql_iscsi_stats->mac_rx_frame_discarded);
1104 host_stats->macrx_frames_dropped =
1105 le64_to_cpu(ql_iscsi_stats->mac_rx_frames_dropped);
1106 host_stats->mac_crc_error = le64_to_cpu(ql_iscsi_stats->mac_crc_error);
1107 host_stats->mac_encoding_error =
1108 le64_to_cpu(ql_iscsi_stats->mac_encoding_error);
1109 host_stats->macrx_length_error_large =
1110 le64_to_cpu(ql_iscsi_stats->mac_rx_length_error_large);
1111 host_stats->macrx_length_error_small =
1112 le64_to_cpu(ql_iscsi_stats->mac_rx_length_error_small);
1113 host_stats->macrx_multicast_frames =
1114 le64_to_cpu(ql_iscsi_stats->mac_rx_multicast_frames);
1115 host_stats->macrx_broadcast_frames =
1116 le64_to_cpu(ql_iscsi_stats->mac_rx_broadcast_frames);
1117 host_stats->iptx_packets = le64_to_cpu(ql_iscsi_stats->ip_tx_packets);
1118 host_stats->iptx_bytes = le64_to_cpu(ql_iscsi_stats->ip_tx_bytes);
1119 host_stats->iptx_fragments =
1120 le64_to_cpu(ql_iscsi_stats->ip_tx_fragments);
1121 host_stats->iprx_packets = le64_to_cpu(ql_iscsi_stats->ip_rx_packets);
1122 host_stats->iprx_bytes = le64_to_cpu(ql_iscsi_stats->ip_rx_bytes);
1123 host_stats->iprx_fragments =
1124 le64_to_cpu(ql_iscsi_stats->ip_rx_fragments);
1125 host_stats->ip_datagram_reassembly =
1126 le64_to_cpu(ql_iscsi_stats->ip_datagram_reassembly);
1127 host_stats->ip_invalid_address_error =
1128 le64_to_cpu(ql_iscsi_stats->ip_invalid_address_error);
1129 host_stats->ip_error_packets =
1130 le64_to_cpu(ql_iscsi_stats->ip_error_packets);
1131 host_stats->ip_fragrx_overlap =
1132 le64_to_cpu(ql_iscsi_stats->ip_fragrx_overlap);
1133 host_stats->ip_fragrx_outoforder =
1134 le64_to_cpu(ql_iscsi_stats->ip_fragrx_outoforder);
1135 host_stats->ip_datagram_reassembly_timeout =
1136 le64_to_cpu(ql_iscsi_stats->ip_datagram_reassembly_timeout);
1137 host_stats->ipv6tx_packets =
1138 le64_to_cpu(ql_iscsi_stats->ipv6_tx_packets);
1139 host_stats->ipv6tx_bytes = le64_to_cpu(ql_iscsi_stats->ipv6_tx_bytes);
1140 host_stats->ipv6tx_fragments =
1141 le64_to_cpu(ql_iscsi_stats->ipv6_tx_fragments);
1142 host_stats->ipv6rx_packets =
1143 le64_to_cpu(ql_iscsi_stats->ipv6_rx_packets);
1144 host_stats->ipv6rx_bytes = le64_to_cpu(ql_iscsi_stats->ipv6_rx_bytes);
1145 host_stats->ipv6rx_fragments =
1146 le64_to_cpu(ql_iscsi_stats->ipv6_rx_fragments);
1147 host_stats->ipv6_datagram_reassembly =
1148 le64_to_cpu(ql_iscsi_stats->ipv6_datagram_reassembly);
1149 host_stats->ipv6_invalid_address_error =
1150 le64_to_cpu(ql_iscsi_stats->ipv6_invalid_address_error);
1151 host_stats->ipv6_error_packets =
1152 le64_to_cpu(ql_iscsi_stats->ipv6_error_packets);
1153 host_stats->ipv6_fragrx_overlap =
1154 le64_to_cpu(ql_iscsi_stats->ipv6_fragrx_overlap);
1155 host_stats->ipv6_fragrx_outoforder =
1156 le64_to_cpu(ql_iscsi_stats->ipv6_fragrx_outoforder);
1157 host_stats->ipv6_datagram_reassembly_timeout =
1158 le64_to_cpu(ql_iscsi_stats->ipv6_datagram_reassembly_timeout);
1159 host_stats->tcptx_segments =
1160 le64_to_cpu(ql_iscsi_stats->tcp_tx_segments);
1161 host_stats->tcptx_bytes = le64_to_cpu(ql_iscsi_stats->tcp_tx_bytes);
1162 host_stats->tcprx_segments =
1163 le64_to_cpu(ql_iscsi_stats->tcp_rx_segments);
1164 host_stats->tcprx_byte = le64_to_cpu(ql_iscsi_stats->tcp_rx_byte);
1165 host_stats->tcp_duplicate_ack_retx =
1166 le64_to_cpu(ql_iscsi_stats->tcp_duplicate_ack_retx);
1167 host_stats->tcp_retx_timer_expired =
1168 le64_to_cpu(ql_iscsi_stats->tcp_retx_timer_expired);
1169 host_stats->tcprx_duplicate_ack =
1170 le64_to_cpu(ql_iscsi_stats->tcp_rx_duplicate_ack);
1171 host_stats->tcprx_pure_ackr =
1172 le64_to_cpu(ql_iscsi_stats->tcp_rx_pure_ackr);
1173 host_stats->tcptx_delayed_ack =
1174 le64_to_cpu(ql_iscsi_stats->tcp_tx_delayed_ack);
1175 host_stats->tcptx_pure_ack =
1176 le64_to_cpu(ql_iscsi_stats->tcp_tx_pure_ack);
1177 host_stats->tcprx_segment_error =
1178 le64_to_cpu(ql_iscsi_stats->tcp_rx_segment_error);
1179 host_stats->tcprx_segment_outoforder =
1180 le64_to_cpu(ql_iscsi_stats->tcp_rx_segment_outoforder);
1181 host_stats->tcprx_window_probe =
1182 le64_to_cpu(ql_iscsi_stats->tcp_rx_window_probe);
1183 host_stats->tcprx_window_update =
1184 le64_to_cpu(ql_iscsi_stats->tcp_rx_window_update);
1185 host_stats->tcptx_window_probe_persist =
1186 le64_to_cpu(ql_iscsi_stats->tcp_tx_window_probe_persist);
1187 host_stats->ecc_error_correction =
1188 le64_to_cpu(ql_iscsi_stats->ecc_error_correction);
1189 host_stats->iscsi_pdu_tx = le64_to_cpu(ql_iscsi_stats->iscsi_pdu_tx);
1190 host_stats->iscsi_data_bytes_tx =
1191 le64_to_cpu(ql_iscsi_stats->iscsi_data_bytes_tx);
1192 host_stats->iscsi_pdu_rx = le64_to_cpu(ql_iscsi_stats->iscsi_pdu_rx);
1193 host_stats->iscsi_data_bytes_rx =
1194 le64_to_cpu(ql_iscsi_stats->iscsi_data_bytes_rx);
1195 host_stats->iscsi_io_completed =
1196 le64_to_cpu(ql_iscsi_stats->iscsi_io_completed);
1197 host_stats->iscsi_unexpected_io_rx =
1198 le64_to_cpu(ql_iscsi_stats->iscsi_unexpected_io_rx);
1199 host_stats->iscsi_format_error =
1200 le64_to_cpu(ql_iscsi_stats->iscsi_format_error);
1201 host_stats->iscsi_hdr_digest_error =
1202 le64_to_cpu(ql_iscsi_stats->iscsi_hdr_digest_error);
1203 host_stats->iscsi_data_digest_error =
1204 le64_to_cpu(ql_iscsi_stats->iscsi_data_digest_error);
1205 host_stats->iscsi_sequence_error =
1206 le64_to_cpu(ql_iscsi_stats->iscsi_sequence_error);
1207 exit_host_stats:
1208 if (ql_iscsi_stats)
1209 dma_free_coherent(&ha->pdev->dev, host_stats_size,
1210 ql_iscsi_stats, iscsi_stats_dma);
1211
1212 ql4_printk(KERN_INFO, ha, "%s: Get host stats done\n",
1213 __func__);
1214 return ret;
1215 }
1216
1217 static int qla4xxx_get_iface_param(struct iscsi_iface *iface,
1218 enum iscsi_param_type param_type,
1219 int param, char *buf)
1220 {
1221 struct Scsi_Host *shost = iscsi_iface_to_shost(iface);
1222 struct scsi_qla_host *ha = to_qla_host(shost);
1223 int ival;
1224 char *pval = NULL;
1225 int len = -ENOSYS;
1226
1227 if (param_type == ISCSI_NET_PARAM) {
1228 switch (param) {
1229 case ISCSI_NET_PARAM_IPV4_ADDR:
1230 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address);
1231 break;
1232 case ISCSI_NET_PARAM_IPV4_SUBNET:
1233 len = sprintf(buf, "%pI4\n",
1234 &ha->ip_config.subnet_mask);
1235 break;
1236 case ISCSI_NET_PARAM_IPV4_GW:
1237 len = sprintf(buf, "%pI4\n", &ha->ip_config.gateway);
1238 break;
1239 case ISCSI_NET_PARAM_IFACE_ENABLE:
1240 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1241 OP_STATE(ha->ip_config.ipv4_options,
1242 IPOPT_IPV4_PROTOCOL_ENABLE, pval);
1243 } else {
1244 OP_STATE(ha->ip_config.ipv6_options,
1245 IPV6_OPT_IPV6_PROTOCOL_ENABLE, pval);
1246 }
1247
1248 len = sprintf(buf, "%s\n", pval);
1249 break;
1250 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
1251 len = sprintf(buf, "%s\n",
1252 (ha->ip_config.tcp_options &
1253 TCPOPT_DHCP_ENABLE) ?
1254 "dhcp" : "static");
1255 break;
1256 case ISCSI_NET_PARAM_IPV6_ADDR:
1257 if (iface->iface_num == 0)
1258 len = sprintf(buf, "%pI6\n",
1259 &ha->ip_config.ipv6_addr0);
1260 if (iface->iface_num == 1)
1261 len = sprintf(buf, "%pI6\n",
1262 &ha->ip_config.ipv6_addr1);
1263 break;
1264 case ISCSI_NET_PARAM_IPV6_LINKLOCAL:
1265 len = sprintf(buf, "%pI6\n",
1266 &ha->ip_config.ipv6_link_local_addr);
1267 break;
1268 case ISCSI_NET_PARAM_IPV6_ROUTER:
1269 len = sprintf(buf, "%pI6\n",
1270 &ha->ip_config.ipv6_default_router_addr);
1271 break;
1272 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG:
1273 pval = (ha->ip_config.ipv6_addl_options &
1274 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE) ?
1275 "nd" : "static";
1276
1277 len = sprintf(buf, "%s\n", pval);
1278 break;
1279 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG:
1280 pval = (ha->ip_config.ipv6_addl_options &
1281 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR) ?
1282 "auto" : "static";
1283
1284 len = sprintf(buf, "%s\n", pval);
1285 break;
1286 case ISCSI_NET_PARAM_VLAN_ID:
1287 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1288 ival = ha->ip_config.ipv4_vlan_tag &
1289 ISCSI_MAX_VLAN_ID;
1290 else
1291 ival = ha->ip_config.ipv6_vlan_tag &
1292 ISCSI_MAX_VLAN_ID;
1293
1294 len = sprintf(buf, "%d\n", ival);
1295 break;
1296 case ISCSI_NET_PARAM_VLAN_PRIORITY:
1297 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1298 ival = (ha->ip_config.ipv4_vlan_tag >> 13) &
1299 ISCSI_MAX_VLAN_PRIORITY;
1300 else
1301 ival = (ha->ip_config.ipv6_vlan_tag >> 13) &
1302 ISCSI_MAX_VLAN_PRIORITY;
1303
1304 len = sprintf(buf, "%d\n", ival);
1305 break;
1306 case ISCSI_NET_PARAM_VLAN_ENABLED:
1307 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1308 OP_STATE(ha->ip_config.ipv4_options,
1309 IPOPT_VLAN_TAGGING_ENABLE, pval);
1310 } else {
1311 OP_STATE(ha->ip_config.ipv6_options,
1312 IPV6_OPT_VLAN_TAGGING_ENABLE, pval);
1313 }
1314 len = sprintf(buf, "%s\n", pval);
1315 break;
1316 case ISCSI_NET_PARAM_MTU:
1317 len = sprintf(buf, "%d\n", ha->ip_config.eth_mtu_size);
1318 break;
1319 case ISCSI_NET_PARAM_PORT:
1320 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1321 len = sprintf(buf, "%d\n",
1322 ha->ip_config.ipv4_port);
1323 else
1324 len = sprintf(buf, "%d\n",
1325 ha->ip_config.ipv6_port);
1326 break;
1327 case ISCSI_NET_PARAM_IPADDR_STATE:
1328 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1329 pval = iscsi_get_ipaddress_state_name(
1330 ha->ip_config.ipv4_addr_state);
1331 } else {
1332 if (iface->iface_num == 0)
1333 pval = iscsi_get_ipaddress_state_name(
1334 ha->ip_config.ipv6_addr0_state);
1335 else if (iface->iface_num == 1)
1336 pval = iscsi_get_ipaddress_state_name(
1337 ha->ip_config.ipv6_addr1_state);
1338 }
1339
1340 len = sprintf(buf, "%s\n", pval);
1341 break;
1342 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_STATE:
1343 pval = iscsi_get_ipaddress_state_name(
1344 ha->ip_config.ipv6_link_local_state);
1345 len = sprintf(buf, "%s\n", pval);
1346 break;
1347 case ISCSI_NET_PARAM_IPV6_ROUTER_STATE:
1348 pval = iscsi_get_router_state_name(
1349 ha->ip_config.ipv6_default_router_state);
1350 len = sprintf(buf, "%s\n", pval);
1351 break;
1352 case ISCSI_NET_PARAM_DELAYED_ACK_EN:
1353 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1354 OP_STATE(~ha->ip_config.tcp_options,
1355 TCPOPT_DELAYED_ACK_DISABLE, pval);
1356 } else {
1357 OP_STATE(~ha->ip_config.ipv6_tcp_options,
1358 IPV6_TCPOPT_DELAYED_ACK_DISABLE, pval);
1359 }
1360 len = sprintf(buf, "%s\n", pval);
1361 break;
1362 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE:
1363 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1364 OP_STATE(~ha->ip_config.tcp_options,
1365 TCPOPT_NAGLE_ALGO_DISABLE, pval);
1366 } else {
1367 OP_STATE(~ha->ip_config.ipv6_tcp_options,
1368 IPV6_TCPOPT_NAGLE_ALGO_DISABLE, pval);
1369 }
1370 len = sprintf(buf, "%s\n", pval);
1371 break;
1372 case ISCSI_NET_PARAM_TCP_WSF_DISABLE:
1373 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1374 OP_STATE(~ha->ip_config.tcp_options,
1375 TCPOPT_WINDOW_SCALE_DISABLE, pval);
1376 } else {
1377 OP_STATE(~ha->ip_config.ipv6_tcp_options,
1378 IPV6_TCPOPT_WINDOW_SCALE_DISABLE,
1379 pval);
1380 }
1381 len = sprintf(buf, "%s\n", pval);
1382 break;
1383 case ISCSI_NET_PARAM_TCP_WSF:
1384 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1385 len = sprintf(buf, "%d\n",
1386 ha->ip_config.tcp_wsf);
1387 else
1388 len = sprintf(buf, "%d\n",
1389 ha->ip_config.ipv6_tcp_wsf);
1390 break;
1391 case ISCSI_NET_PARAM_TCP_TIMER_SCALE:
1392 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1393 ival = (ha->ip_config.tcp_options &
1394 TCPOPT_TIMER_SCALE) >> 1;
1395 else
1396 ival = (ha->ip_config.ipv6_tcp_options &
1397 IPV6_TCPOPT_TIMER_SCALE) >> 1;
1398
1399 len = sprintf(buf, "%d\n", ival);
1400 break;
1401 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN:
1402 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1403 OP_STATE(ha->ip_config.tcp_options,
1404 TCPOPT_TIMESTAMP_ENABLE, pval);
1405 } else {
1406 OP_STATE(ha->ip_config.ipv6_tcp_options,
1407 IPV6_TCPOPT_TIMESTAMP_EN, pval);
1408 }
1409 len = sprintf(buf, "%s\n", pval);
1410 break;
1411 case ISCSI_NET_PARAM_CACHE_ID:
1412 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1413 len = sprintf(buf, "%d\n",
1414 ha->ip_config.ipv4_cache_id);
1415 else
1416 len = sprintf(buf, "%d\n",
1417 ha->ip_config.ipv6_cache_id);
1418 break;
1419 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN:
1420 OP_STATE(ha->ip_config.tcp_options,
1421 TCPOPT_DNS_SERVER_IP_EN, pval);
1422
1423 len = sprintf(buf, "%s\n", pval);
1424 break;
1425 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN:
1426 OP_STATE(ha->ip_config.tcp_options,
1427 TCPOPT_SLP_DA_INFO_EN, pval);
1428
1429 len = sprintf(buf, "%s\n", pval);
1430 break;
1431 case ISCSI_NET_PARAM_IPV4_TOS_EN:
1432 OP_STATE(ha->ip_config.ipv4_options,
1433 IPOPT_IPV4_TOS_EN, pval);
1434
1435 len = sprintf(buf, "%s\n", pval);
1436 break;
1437 case ISCSI_NET_PARAM_IPV4_TOS:
1438 len = sprintf(buf, "%d\n", ha->ip_config.ipv4_tos);
1439 break;
1440 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN:
1441 OP_STATE(ha->ip_config.ipv4_options,
1442 IPOPT_GRAT_ARP_EN, pval);
1443
1444 len = sprintf(buf, "%s\n", pval);
1445 break;
1446 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN:
1447 OP_STATE(ha->ip_config.ipv4_options, IPOPT_ALT_CID_EN,
1448 pval);
1449
1450 len = sprintf(buf, "%s\n", pval);
1451 break;
1452 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID:
1453 pval = (ha->ip_config.ipv4_alt_cid_len) ?
1454 (char *)ha->ip_config.ipv4_alt_cid : "";
1455
1456 len = sprintf(buf, "%s\n", pval);
1457 break;
1458 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN:
1459 OP_STATE(ha->ip_config.ipv4_options,
1460 IPOPT_REQ_VID_EN, pval);
1461
1462 len = sprintf(buf, "%s\n", pval);
1463 break;
1464 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN:
1465 OP_STATE(ha->ip_config.ipv4_options,
1466 IPOPT_USE_VID_EN, pval);
1467
1468 len = sprintf(buf, "%s\n", pval);
1469 break;
1470 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID:
1471 pval = (ha->ip_config.ipv4_vid_len) ?
1472 (char *)ha->ip_config.ipv4_vid : "";
1473
1474 len = sprintf(buf, "%s\n", pval);
1475 break;
1476 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN:
1477 OP_STATE(ha->ip_config.ipv4_options,
1478 IPOPT_LEARN_IQN_EN, pval);
1479
1480 len = sprintf(buf, "%s\n", pval);
1481 break;
1482 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE:
1483 OP_STATE(~ha->ip_config.ipv4_options,
1484 IPOPT_FRAGMENTATION_DISABLE, pval);
1485
1486 len = sprintf(buf, "%s\n", pval);
1487 break;
1488 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN:
1489 OP_STATE(ha->ip_config.ipv4_options,
1490 IPOPT_IN_FORWARD_EN, pval);
1491
1492 len = sprintf(buf, "%s\n", pval);
1493 break;
1494 case ISCSI_NET_PARAM_REDIRECT_EN:
1495 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1496 OP_STATE(ha->ip_config.ipv4_options,
1497 IPOPT_ARP_REDIRECT_EN, pval);
1498 } else {
1499 OP_STATE(ha->ip_config.ipv6_options,
1500 IPV6_OPT_REDIRECT_EN, pval);
1501 }
1502 len = sprintf(buf, "%s\n", pval);
1503 break;
1504 case ISCSI_NET_PARAM_IPV4_TTL:
1505 len = sprintf(buf, "%d\n", ha->ip_config.ipv4_ttl);
1506 break;
1507 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN:
1508 OP_STATE(ha->ip_config.ipv6_options,
1509 IPV6_OPT_GRAT_NEIGHBOR_ADV_EN, pval);
1510
1511 len = sprintf(buf, "%s\n", pval);
1512 break;
1513 case ISCSI_NET_PARAM_IPV6_MLD_EN:
1514 OP_STATE(ha->ip_config.ipv6_addl_options,
1515 IPV6_ADDOPT_MLD_EN, pval);
1516
1517 len = sprintf(buf, "%s\n", pval);
1518 break;
1519 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL:
1520 len = sprintf(buf, "%u\n", ha->ip_config.ipv6_flow_lbl);
1521 break;
1522 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS:
1523 len = sprintf(buf, "%d\n",
1524 ha->ip_config.ipv6_traffic_class);
1525 break;
1526 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT:
1527 len = sprintf(buf, "%d\n",
1528 ha->ip_config.ipv6_hop_limit);
1529 break;
1530 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO:
1531 len = sprintf(buf, "%d\n",
1532 ha->ip_config.ipv6_nd_reach_time);
1533 break;
1534 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME:
1535 len = sprintf(buf, "%d\n",
1536 ha->ip_config.ipv6_nd_rexmit_timer);
1537 break;
1538 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO:
1539 len = sprintf(buf, "%d\n",
1540 ha->ip_config.ipv6_nd_stale_timeout);
1541 break;
1542 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT:
1543 len = sprintf(buf, "%d\n",
1544 ha->ip_config.ipv6_dup_addr_detect_count);
1545 break;
1546 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU:
1547 len = sprintf(buf, "%d\n",
1548 ha->ip_config.ipv6_gw_advrt_mtu);
1549 break;
1550 default:
1551 len = -ENOSYS;
1552 }
1553 } else if (param_type == ISCSI_IFACE_PARAM) {
1554 switch (param) {
1555 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO:
1556 len = sprintf(buf, "%d\n", ha->ip_config.def_timeout);
1557 break;
1558 case ISCSI_IFACE_PARAM_HDRDGST_EN:
1559 OP_STATE(ha->ip_config.iscsi_options,
1560 ISCSIOPTS_HEADER_DIGEST_EN, pval);
1561
1562 len = sprintf(buf, "%s\n", pval);
1563 break;
1564 case ISCSI_IFACE_PARAM_DATADGST_EN:
1565 OP_STATE(ha->ip_config.iscsi_options,
1566 ISCSIOPTS_DATA_DIGEST_EN, pval);
1567
1568 len = sprintf(buf, "%s\n", pval);
1569 break;
1570 case ISCSI_IFACE_PARAM_IMM_DATA_EN:
1571 OP_STATE(ha->ip_config.iscsi_options,
1572 ISCSIOPTS_IMMEDIATE_DATA_EN, pval);
1573
1574 len = sprintf(buf, "%s\n", pval);
1575 break;
1576 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN:
1577 OP_STATE(ha->ip_config.iscsi_options,
1578 ISCSIOPTS_INITIAL_R2T_EN, pval);
1579
1580 len = sprintf(buf, "%s\n", pval);
1581 break;
1582 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN:
1583 OP_STATE(ha->ip_config.iscsi_options,
1584 ISCSIOPTS_DATA_SEQ_INORDER_EN, pval);
1585
1586 len = sprintf(buf, "%s\n", pval);
1587 break;
1588 case ISCSI_IFACE_PARAM_PDU_INORDER_EN:
1589 OP_STATE(ha->ip_config.iscsi_options,
1590 ISCSIOPTS_DATA_PDU_INORDER_EN, pval);
1591
1592 len = sprintf(buf, "%s\n", pval);
1593 break;
1594 case ISCSI_IFACE_PARAM_ERL:
1595 len = sprintf(buf, "%d\n",
1596 (ha->ip_config.iscsi_options &
1597 ISCSIOPTS_ERL));
1598 break;
1599 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH:
1600 len = sprintf(buf, "%u\n",
1601 ha->ip_config.iscsi_max_pdu_size *
1602 BYTE_UNITS);
1603 break;
1604 case ISCSI_IFACE_PARAM_FIRST_BURST:
1605 len = sprintf(buf, "%u\n",
1606 ha->ip_config.iscsi_first_burst_len *
1607 BYTE_UNITS);
1608 break;
1609 case ISCSI_IFACE_PARAM_MAX_R2T:
1610 len = sprintf(buf, "%d\n",
1611 ha->ip_config.iscsi_max_outstnd_r2t);
1612 break;
1613 case ISCSI_IFACE_PARAM_MAX_BURST:
1614 len = sprintf(buf, "%u\n",
1615 ha->ip_config.iscsi_max_burst_len *
1616 BYTE_UNITS);
1617 break;
1618 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN:
1619 OP_STATE(ha->ip_config.iscsi_options,
1620 ISCSIOPTS_CHAP_AUTH_EN, pval);
1621
1622 len = sprintf(buf, "%s\n", pval);
1623 break;
1624 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN:
1625 OP_STATE(ha->ip_config.iscsi_options,
1626 ISCSIOPTS_BIDI_CHAP_EN, pval);
1627
1628 len = sprintf(buf, "%s\n", pval);
1629 break;
1630 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL:
1631 OP_STATE(ha->ip_config.iscsi_options,
1632 ISCSIOPTS_DISCOVERY_AUTH_EN, pval);
1633
1634 len = sprintf(buf, "%s\n", pval);
1635 break;
1636 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN:
1637 OP_STATE(ha->ip_config.iscsi_options,
1638 ISCSIOPTS_DISCOVERY_LOGOUT_EN, pval);
1639
1640 len = sprintf(buf, "%s\n", pval);
1641 break;
1642 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN:
1643 OP_STATE(ha->ip_config.iscsi_options,
1644 ISCSIOPTS_STRICT_LOGIN_COMP_EN, pval);
1645
1646 len = sprintf(buf, "%s\n", pval);
1647 break;
1648 case ISCSI_IFACE_PARAM_INITIATOR_NAME:
1649 len = sprintf(buf, "%s\n", ha->ip_config.iscsi_name);
1650 break;
1651 default:
1652 len = -ENOSYS;
1653 }
1654 }
1655
1656 return len;
1657 }
1658
1659 static struct iscsi_endpoint *
1660 qla4xxx_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr,
1661 int non_blocking)
1662 {
1663 int ret;
1664 struct iscsi_endpoint *ep;
1665 struct qla_endpoint *qla_ep;
1666 struct scsi_qla_host *ha;
1667 struct sockaddr_in *addr;
1668 struct sockaddr_in6 *addr6;
1669
1670 if (!shost) {
1671 ret = -ENXIO;
1672 pr_err("%s: shost is NULL\n", __func__);
1673 return ERR_PTR(ret);
1674 }
1675
1676 ha = iscsi_host_priv(shost);
1677 ep = iscsi_create_endpoint(sizeof(struct qla_endpoint));
1678 if (!ep) {
1679 ret = -ENOMEM;
1680 return ERR_PTR(ret);
1681 }
1682
1683 qla_ep = ep->dd_data;
1684 memset(qla_ep, 0, sizeof(struct qla_endpoint));
1685 if (dst_addr->sa_family == AF_INET) {
1686 memcpy(&qla_ep->dst_addr, dst_addr, sizeof(struct sockaddr_in));
1687 addr = (struct sockaddr_in *)&qla_ep->dst_addr;
1688 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI4\n", __func__,
1689 (char *)&addr->sin_addr));
1690 } else if (dst_addr->sa_family == AF_INET6) {
1691 memcpy(&qla_ep->dst_addr, dst_addr,
1692 sizeof(struct sockaddr_in6));
1693 addr6 = (struct sockaddr_in6 *)&qla_ep->dst_addr;
1694 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI6\n", __func__,
1695 (char *)&addr6->sin6_addr));
1696 } else {
1697 ql4_printk(KERN_WARNING, ha, "%s: Invalid endpoint\n",
1698 __func__);
1699 }
1700
1701 qla_ep->host = shost;
1702
1703 return ep;
1704 }
1705
1706 static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms)
1707 {
1708 struct qla_endpoint *qla_ep;
1709 struct scsi_qla_host *ha;
1710 int ret = 0;
1711
1712 qla_ep = ep->dd_data;
1713 ha = to_qla_host(qla_ep->host);
1714 DEBUG2(pr_info_ratelimited("%s: host: %ld\n", __func__, ha->host_no));
1715
1716 if (adapter_up(ha) && !test_bit(AF_BUILD_DDB_LIST, &ha->flags))
1717 ret = 1;
1718
1719 return ret;
1720 }
1721
1722 static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep)
1723 {
1724 struct qla_endpoint *qla_ep;
1725 struct scsi_qla_host *ha;
1726
1727 qla_ep = ep->dd_data;
1728 ha = to_qla_host(qla_ep->host);
1729 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__,
1730 ha->host_no));
1731 iscsi_destroy_endpoint(ep);
1732 }
1733
1734 static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep,
1735 enum iscsi_param param,
1736 char *buf)
1737 {
1738 struct qla_endpoint *qla_ep = ep->dd_data;
1739 struct sockaddr *dst_addr;
1740 struct scsi_qla_host *ha;
1741
1742 if (!qla_ep)
1743 return -ENOTCONN;
1744
1745 ha = to_qla_host(qla_ep->host);
1746 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__,
1747 ha->host_no));
1748
1749 switch (param) {
1750 case ISCSI_PARAM_CONN_PORT:
1751 case ISCSI_PARAM_CONN_ADDRESS:
1752 dst_addr = (struct sockaddr *)&qla_ep->dst_addr;
1753 if (!dst_addr)
1754 return -ENOTCONN;
1755
1756 return iscsi_conn_get_addr_param((struct sockaddr_storage *)
1757 &qla_ep->dst_addr, param, buf);
1758 default:
1759 return -ENOSYS;
1760 }
1761 }
1762
1763 static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn,
1764 struct iscsi_stats *stats)
1765 {
1766 struct iscsi_session *sess;
1767 struct iscsi_cls_session *cls_sess;
1768 struct ddb_entry *ddb_entry;
1769 struct scsi_qla_host *ha;
1770 struct ql_iscsi_stats *ql_iscsi_stats;
1771 int stats_size;
1772 int ret;
1773 dma_addr_t iscsi_stats_dma;
1774
1775 cls_sess = iscsi_conn_to_session(cls_conn);
1776 sess = cls_sess->dd_data;
1777 ddb_entry = sess->dd_data;
1778 ha = ddb_entry->ha;
1779
1780 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__,
1781 ha->host_no));
1782 stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats));
1783 /* Allocate memory */
1784 ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size,
1785 &iscsi_stats_dma, GFP_KERNEL);
1786 if (!ql_iscsi_stats) {
1787 ql4_printk(KERN_ERR, ha,
1788 "Unable to allocate memory for iscsi stats\n");
1789 goto exit_get_stats;
1790 }
1791
1792 ret = qla4xxx_get_mgmt_data(ha, ddb_entry->fw_ddb_index, stats_size,
1793 iscsi_stats_dma);
1794 if (ret != QLA_SUCCESS) {
1795 ql4_printk(KERN_ERR, ha,
1796 "Unable to retrieve iscsi stats\n");
1797 goto free_stats;
1798 }
1799
1800 /* octets */
1801 stats->txdata_octets = le64_to_cpu(ql_iscsi_stats->tx_data_octets);
1802 stats->rxdata_octets = le64_to_cpu(ql_iscsi_stats->rx_data_octets);
1803 /* xmit pdus */
1804 stats->noptx_pdus = le32_to_cpu(ql_iscsi_stats->tx_nopout_pdus);
1805 stats->scsicmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_cmd_pdus);
1806 stats->tmfcmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_tmf_cmd_pdus);
1807 stats->login_pdus = le32_to_cpu(ql_iscsi_stats->tx_login_cmd_pdus);
1808 stats->text_pdus = le32_to_cpu(ql_iscsi_stats->tx_text_cmd_pdus);
1809 stats->dataout_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_write_pdus);
1810 stats->logout_pdus = le32_to_cpu(ql_iscsi_stats->tx_logout_cmd_pdus);
1811 stats->snack_pdus = le32_to_cpu(ql_iscsi_stats->tx_snack_req_pdus);
1812 /* recv pdus */
1813 stats->noprx_pdus = le32_to_cpu(ql_iscsi_stats->rx_nopin_pdus);
1814 stats->scsirsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_resp_pdus);
1815 stats->tmfrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_tmf_resp_pdus);
1816 stats->textrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_text_resp_pdus);
1817 stats->datain_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_read_pdus);
1818 stats->logoutrsp_pdus =
1819 le32_to_cpu(ql_iscsi_stats->rx_logout_resp_pdus);
1820 stats->r2t_pdus = le32_to_cpu(ql_iscsi_stats->rx_r2t_pdus);
1821 stats->async_pdus = le32_to_cpu(ql_iscsi_stats->rx_async_pdus);
1822 stats->rjt_pdus = le32_to_cpu(ql_iscsi_stats->rx_reject_pdus);
1823
1824 free_stats:
1825 dma_free_coherent(&ha->pdev->dev, stats_size, ql_iscsi_stats,
1826 iscsi_stats_dma);
1827 exit_get_stats:
1828 return;
1829 }
1830
1831 static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc)
1832 {
1833 struct iscsi_cls_session *session;
1834 struct iscsi_session *sess;
1835 unsigned long flags;
1836 enum blk_eh_timer_return ret = BLK_EH_NOT_HANDLED;
1837
1838 session = starget_to_session(scsi_target(sc->device));
1839 sess = session->dd_data;
1840
1841 spin_lock_irqsave(&session->lock, flags);
1842 if (session->state == ISCSI_SESSION_FAILED)
1843 ret = BLK_EH_RESET_TIMER;
1844 spin_unlock_irqrestore(&session->lock, flags);
1845
1846 return ret;
1847 }
1848
1849 static void qla4xxx_set_port_speed(struct Scsi_Host *shost)
1850 {
1851 struct scsi_qla_host *ha = to_qla_host(shost);
1852 struct iscsi_cls_host *ihost = shost->shost_data;
1853 uint32_t speed = ISCSI_PORT_SPEED_UNKNOWN;
1854
1855 qla4xxx_get_firmware_state(ha);
1856
1857 switch (ha->addl_fw_state & 0x0F00) {
1858 case FW_ADDSTATE_LINK_SPEED_10MBPS:
1859 speed = ISCSI_PORT_SPEED_10MBPS;
1860 break;
1861 case FW_ADDSTATE_LINK_SPEED_100MBPS:
1862 speed = ISCSI_PORT_SPEED_100MBPS;
1863 break;
1864 case FW_ADDSTATE_LINK_SPEED_1GBPS:
1865 speed = ISCSI_PORT_SPEED_1GBPS;
1866 break;
1867 case FW_ADDSTATE_LINK_SPEED_10GBPS:
1868 speed = ISCSI_PORT_SPEED_10GBPS;
1869 break;
1870 }
1871 ihost->port_speed = speed;
1872 }
1873
1874 static void qla4xxx_set_port_state(struct Scsi_Host *shost)
1875 {
1876 struct scsi_qla_host *ha = to_qla_host(shost);
1877 struct iscsi_cls_host *ihost = shost->shost_data;
1878 uint32_t state = ISCSI_PORT_STATE_DOWN;
1879
1880 if (test_bit(AF_LINK_UP, &ha->flags))
1881 state = ISCSI_PORT_STATE_UP;
1882
1883 ihost->port_state = state;
1884 }
1885
1886 static int qla4xxx_host_get_param(struct Scsi_Host *shost,
1887 enum iscsi_host_param param, char *buf)
1888 {
1889 struct scsi_qla_host *ha = to_qla_host(shost);
1890 int len;
1891
1892 switch (param) {
1893 case ISCSI_HOST_PARAM_HWADDRESS:
1894 len = sysfs_format_mac(buf, ha->my_mac, MAC_ADDR_LEN);
1895 break;
1896 case ISCSI_HOST_PARAM_IPADDRESS:
1897 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address);
1898 break;
1899 case ISCSI_HOST_PARAM_INITIATOR_NAME:
1900 len = sprintf(buf, "%s\n", ha->name_string);
1901 break;
1902 case ISCSI_HOST_PARAM_PORT_STATE:
1903 qla4xxx_set_port_state(shost);
1904 len = sprintf(buf, "%s\n", iscsi_get_port_state_name(shost));
1905 break;
1906 case ISCSI_HOST_PARAM_PORT_SPEED:
1907 qla4xxx_set_port_speed(shost);
1908 len = sprintf(buf, "%s\n", iscsi_get_port_speed_name(shost));
1909 break;
1910 default:
1911 return -ENOSYS;
1912 }
1913
1914 return len;
1915 }
1916
1917 static void qla4xxx_create_ipv4_iface(struct scsi_qla_host *ha)
1918 {
1919 if (ha->iface_ipv4)
1920 return;
1921
1922 /* IPv4 */
1923 ha->iface_ipv4 = iscsi_create_iface(ha->host,
1924 &qla4xxx_iscsi_transport,
1925 ISCSI_IFACE_TYPE_IPV4, 0, 0);
1926 if (!ha->iface_ipv4)
1927 ql4_printk(KERN_ERR, ha, "Could not create IPv4 iSCSI "
1928 "iface0.\n");
1929 }
1930
1931 static void qla4xxx_create_ipv6_iface(struct scsi_qla_host *ha)
1932 {
1933 if (!ha->iface_ipv6_0)
1934 /* IPv6 iface-0 */
1935 ha->iface_ipv6_0 = iscsi_create_iface(ha->host,
1936 &qla4xxx_iscsi_transport,
1937 ISCSI_IFACE_TYPE_IPV6, 0,
1938 0);
1939 if (!ha->iface_ipv6_0)
1940 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI "
1941 "iface0.\n");
1942
1943 if (!ha->iface_ipv6_1)
1944 /* IPv6 iface-1 */
1945 ha->iface_ipv6_1 = iscsi_create_iface(ha->host,
1946 &qla4xxx_iscsi_transport,
1947 ISCSI_IFACE_TYPE_IPV6, 1,
1948 0);
1949 if (!ha->iface_ipv6_1)
1950 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI "
1951 "iface1.\n");
1952 }
1953
1954 static void qla4xxx_create_ifaces(struct scsi_qla_host *ha)
1955 {
1956 if (ha->ip_config.ipv4_options & IPOPT_IPV4_PROTOCOL_ENABLE)
1957 qla4xxx_create_ipv4_iface(ha);
1958
1959 if (ha->ip_config.ipv6_options & IPV6_OPT_IPV6_PROTOCOL_ENABLE)
1960 qla4xxx_create_ipv6_iface(ha);
1961 }
1962
1963 static void qla4xxx_destroy_ipv4_iface(struct scsi_qla_host *ha)
1964 {
1965 if (ha->iface_ipv4) {
1966 iscsi_destroy_iface(ha->iface_ipv4);
1967 ha->iface_ipv4 = NULL;
1968 }
1969 }
1970
1971 static void qla4xxx_destroy_ipv6_iface(struct scsi_qla_host *ha)
1972 {
1973 if (ha->iface_ipv6_0) {
1974 iscsi_destroy_iface(ha->iface_ipv6_0);
1975 ha->iface_ipv6_0 = NULL;
1976 }
1977 if (ha->iface_ipv6_1) {
1978 iscsi_destroy_iface(ha->iface_ipv6_1);
1979 ha->iface_ipv6_1 = NULL;
1980 }
1981 }
1982
1983 static void qla4xxx_destroy_ifaces(struct scsi_qla_host *ha)
1984 {
1985 qla4xxx_destroy_ipv4_iface(ha);
1986 qla4xxx_destroy_ipv6_iface(ha);
1987 }
1988
1989 static void qla4xxx_set_ipv6(struct scsi_qla_host *ha,
1990 struct iscsi_iface_param_info *iface_param,
1991 struct addr_ctrl_blk *init_fw_cb)
1992 {
1993 /*
1994 * iface_num 0 is valid for IPv6 Addr, linklocal, router, autocfg.
1995 * iface_num 1 is valid only for IPv6 Addr.
1996 */
1997 switch (iface_param->param) {
1998 case ISCSI_NET_PARAM_IPV6_ADDR:
1999 if (iface_param->iface_num & 0x1)
2000 /* IPv6 Addr 1 */
2001 memcpy(init_fw_cb->ipv6_addr1, iface_param->value,
2002 sizeof(init_fw_cb->ipv6_addr1));
2003 else
2004 /* IPv6 Addr 0 */
2005 memcpy(init_fw_cb->ipv6_addr0, iface_param->value,
2006 sizeof(init_fw_cb->ipv6_addr0));
2007 break;
2008 case ISCSI_NET_PARAM_IPV6_LINKLOCAL:
2009 if (iface_param->iface_num & 0x1)
2010 break;
2011 memcpy(init_fw_cb->ipv6_if_id, &iface_param->value[8],
2012 sizeof(init_fw_cb->ipv6_if_id));
2013 break;
2014 case ISCSI_NET_PARAM_IPV6_ROUTER:
2015 if (iface_param->iface_num & 0x1)
2016 break;
2017 memcpy(init_fw_cb->ipv6_dflt_rtr_addr, iface_param->value,
2018 sizeof(init_fw_cb->ipv6_dflt_rtr_addr));
2019 break;
2020 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG:
2021 /* Autocfg applies to even interface */
2022 if (iface_param->iface_num & 0x1)
2023 break;
2024
2025 if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_DISABLE)
2026 init_fw_cb->ipv6_addtl_opts &=
2027 cpu_to_le16(
2028 ~IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE);
2029 else if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_ND_ENABLE)
2030 init_fw_cb->ipv6_addtl_opts |=
2031 cpu_to_le16(
2032 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE);
2033 else
2034 ql4_printk(KERN_ERR, ha,
2035 "Invalid autocfg setting for IPv6 addr\n");
2036 break;
2037 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG:
2038 /* Autocfg applies to even interface */
2039 if (iface_param->iface_num & 0x1)
2040 break;
2041
2042 if (iface_param->value[0] ==
2043 ISCSI_IPV6_LINKLOCAL_AUTOCFG_ENABLE)
2044 init_fw_cb->ipv6_addtl_opts |= cpu_to_le16(
2045 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR);
2046 else if (iface_param->value[0] ==
2047 ISCSI_IPV6_LINKLOCAL_AUTOCFG_DISABLE)
2048 init_fw_cb->ipv6_addtl_opts &= cpu_to_le16(
2049 ~IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR);
2050 else
2051 ql4_printk(KERN_ERR, ha,
2052 "Invalid autocfg setting for IPv6 linklocal addr\n");
2053 break;
2054 case ISCSI_NET_PARAM_IPV6_ROUTER_AUTOCFG:
2055 /* Autocfg applies to even interface */
2056 if (iface_param->iface_num & 0x1)
2057 break;
2058
2059 if (iface_param->value[0] == ISCSI_IPV6_ROUTER_AUTOCFG_ENABLE)
2060 memset(init_fw_cb->ipv6_dflt_rtr_addr, 0,
2061 sizeof(init_fw_cb->ipv6_dflt_rtr_addr));
2062 break;
2063 case ISCSI_NET_PARAM_IFACE_ENABLE:
2064 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) {
2065 init_fw_cb->ipv6_opts |=
2066 cpu_to_le16(IPV6_OPT_IPV6_PROTOCOL_ENABLE);
2067 qla4xxx_create_ipv6_iface(ha);
2068 } else {
2069 init_fw_cb->ipv6_opts &=
2070 cpu_to_le16(~IPV6_OPT_IPV6_PROTOCOL_ENABLE &
2071 0xFFFF);
2072 qla4xxx_destroy_ipv6_iface(ha);
2073 }
2074 break;
2075 case ISCSI_NET_PARAM_VLAN_TAG:
2076 if (iface_param->len != sizeof(init_fw_cb->ipv6_vlan_tag))
2077 break;
2078 init_fw_cb->ipv6_vlan_tag =
2079 cpu_to_be16(*(uint16_t *)iface_param->value);
2080 break;
2081 case ISCSI_NET_PARAM_VLAN_ENABLED:
2082 if (iface_param->value[0] == ISCSI_VLAN_ENABLE)
2083 init_fw_cb->ipv6_opts |=
2084 cpu_to_le16(IPV6_OPT_VLAN_TAGGING_ENABLE);
2085 else
2086 init_fw_cb->ipv6_opts &=
2087 cpu_to_le16(~IPV6_OPT_VLAN_TAGGING_ENABLE);
2088 break;
2089 case ISCSI_NET_PARAM_MTU:
2090 init_fw_cb->eth_mtu_size =
2091 cpu_to_le16(*(uint16_t *)iface_param->value);
2092 break;
2093 case ISCSI_NET_PARAM_PORT:
2094 /* Autocfg applies to even interface */
2095 if (iface_param->iface_num & 0x1)
2096 break;
2097
2098 init_fw_cb->ipv6_port =
2099 cpu_to_le16(*(uint16_t *)iface_param->value);
2100 break;
2101 case ISCSI_NET_PARAM_DELAYED_ACK_EN:
2102 if (iface_param->iface_num & 0x1)
2103 break;
2104 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2105 init_fw_cb->ipv6_tcp_opts |=
2106 cpu_to_le16(IPV6_TCPOPT_DELAYED_ACK_DISABLE);
2107 else
2108 init_fw_cb->ipv6_tcp_opts &=
2109 cpu_to_le16(~IPV6_TCPOPT_DELAYED_ACK_DISABLE &
2110 0xFFFF);
2111 break;
2112 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE:
2113 if (iface_param->iface_num & 0x1)
2114 break;
2115 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2116 init_fw_cb->ipv6_tcp_opts |=
2117 cpu_to_le16(IPV6_TCPOPT_NAGLE_ALGO_DISABLE);
2118 else
2119 init_fw_cb->ipv6_tcp_opts &=
2120 cpu_to_le16(~IPV6_TCPOPT_NAGLE_ALGO_DISABLE);
2121 break;
2122 case ISCSI_NET_PARAM_TCP_WSF_DISABLE:
2123 if (iface_param->iface_num & 0x1)
2124 break;
2125 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2126 init_fw_cb->ipv6_tcp_opts |=
2127 cpu_to_le16(IPV6_TCPOPT_WINDOW_SCALE_DISABLE);
2128 else
2129 init_fw_cb->ipv6_tcp_opts &=
2130 cpu_to_le16(~IPV6_TCPOPT_WINDOW_SCALE_DISABLE);
2131 break;
2132 case ISCSI_NET_PARAM_TCP_WSF:
2133 if (iface_param->iface_num & 0x1)
2134 break;
2135 init_fw_cb->ipv6_tcp_wsf = iface_param->value[0];
2136 break;
2137 case ISCSI_NET_PARAM_TCP_TIMER_SCALE:
2138 if (iface_param->iface_num & 0x1)
2139 break;
2140 init_fw_cb->ipv6_tcp_opts &=
2141 cpu_to_le16(~IPV6_TCPOPT_TIMER_SCALE);
2142 init_fw_cb->ipv6_tcp_opts |=
2143 cpu_to_le16((iface_param->value[0] << 1) &
2144 IPV6_TCPOPT_TIMER_SCALE);
2145 break;
2146 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN:
2147 if (iface_param->iface_num & 0x1)
2148 break;
2149 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2150 init_fw_cb->ipv6_tcp_opts |=
2151 cpu_to_le16(IPV6_TCPOPT_TIMESTAMP_EN);
2152 else
2153 init_fw_cb->ipv6_tcp_opts &=
2154 cpu_to_le16(~IPV6_TCPOPT_TIMESTAMP_EN);
2155 break;
2156 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN:
2157 if (iface_param->iface_num & 0x1)
2158 break;
2159 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2160 init_fw_cb->ipv6_opts |=
2161 cpu_to_le16(IPV6_OPT_GRAT_NEIGHBOR_ADV_EN);
2162 else
2163 init_fw_cb->ipv6_opts &=
2164 cpu_to_le16(~IPV6_OPT_GRAT_NEIGHBOR_ADV_EN);
2165 break;
2166 case ISCSI_NET_PARAM_REDIRECT_EN:
2167 if (iface_param->iface_num & 0x1)
2168 break;
2169 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2170 init_fw_cb->ipv6_opts |=
2171 cpu_to_le16(IPV6_OPT_REDIRECT_EN);
2172 else
2173 init_fw_cb->ipv6_opts &=
2174 cpu_to_le16(~IPV6_OPT_REDIRECT_EN);
2175 break;
2176 case ISCSI_NET_PARAM_IPV6_MLD_EN:
2177 if (iface_param->iface_num & 0x1)
2178 break;
2179 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2180 init_fw_cb->ipv6_addtl_opts |=
2181 cpu_to_le16(IPV6_ADDOPT_MLD_EN);
2182 else
2183 init_fw_cb->ipv6_addtl_opts &=
2184 cpu_to_le16(~IPV6_ADDOPT_MLD_EN);
2185 break;
2186 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL:
2187 if (iface_param->iface_num & 0x1)
2188 break;
2189 init_fw_cb->ipv6_flow_lbl =
2190 cpu_to_le16(*(uint16_t *)iface_param->value);
2191 break;
2192 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS:
2193 if (iface_param->iface_num & 0x1)
2194 break;
2195 init_fw_cb->ipv6_traffic_class = iface_param->value[0];
2196 break;
2197 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT:
2198 if (iface_param->iface_num & 0x1)
2199 break;
2200 init_fw_cb->ipv6_hop_limit = iface_param->value[0];
2201 break;
2202 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO:
2203 if (iface_param->iface_num & 0x1)
2204 break;
2205 init_fw_cb->ipv6_nd_reach_time =
2206 cpu_to_le32(*(uint32_t *)iface_param->value);
2207 break;
2208 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME:
2209 if (iface_param->iface_num & 0x1)
2210 break;
2211 init_fw_cb->ipv6_nd_rexmit_timer =
2212 cpu_to_le32(*(uint32_t *)iface_param->value);
2213 break;
2214 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO:
2215 if (iface_param->iface_num & 0x1)
2216 break;
2217 init_fw_cb->ipv6_nd_stale_timeout =
2218 cpu_to_le32(*(uint32_t *)iface_param->value);
2219 break;
2220 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT:
2221 if (iface_param->iface_num & 0x1)
2222 break;
2223 init_fw_cb->ipv6_dup_addr_detect_count = iface_param->value[0];
2224 break;
2225 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU:
2226 if (iface_param->iface_num & 0x1)
2227 break;
2228 init_fw_cb->ipv6_gw_advrt_mtu =
2229 cpu_to_le32(*(uint32_t *)iface_param->value);
2230 break;
2231 default:
2232 ql4_printk(KERN_ERR, ha, "Unknown IPv6 param = %d\n",
2233 iface_param->param);
2234 break;
2235 }
2236 }
2237
2238 static void qla4xxx_set_ipv4(struct scsi_qla_host *ha,
2239 struct iscsi_iface_param_info *iface_param,
2240 struct addr_ctrl_blk *init_fw_cb)
2241 {
2242 switch (iface_param->param) {
2243 case ISCSI_NET_PARAM_IPV4_ADDR:
2244 memcpy(init_fw_cb->ipv4_addr, iface_param->value,
2245 sizeof(init_fw_cb->ipv4_addr));
2246 break;
2247 case ISCSI_NET_PARAM_IPV4_SUBNET:
2248 memcpy(init_fw_cb->ipv4_subnet, iface_param->value,
2249 sizeof(init_fw_cb->ipv4_subnet));
2250 break;
2251 case ISCSI_NET_PARAM_IPV4_GW:
2252 memcpy(init_fw_cb->ipv4_gw_addr, iface_param->value,
2253 sizeof(init_fw_cb->ipv4_gw_addr));
2254 break;
2255 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
2256 if (iface_param->value[0] == ISCSI_BOOTPROTO_DHCP)
2257 init_fw_cb->ipv4_tcp_opts |=
2258 cpu_to_le16(TCPOPT_DHCP_ENABLE);
2259 else if (iface_param->value[0] == ISCSI_BOOTPROTO_STATIC)
2260 init_fw_cb->ipv4_tcp_opts &=
2261 cpu_to_le16(~TCPOPT_DHCP_ENABLE);
2262 else
2263 ql4_printk(KERN_ERR, ha, "Invalid IPv4 bootproto\n");
2264 break;
2265 case ISCSI_NET_PARAM_IFACE_ENABLE:
2266 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) {
2267 init_fw_cb->ipv4_ip_opts |=
2268 cpu_to_le16(IPOPT_IPV4_PROTOCOL_ENABLE);
2269 qla4xxx_create_ipv4_iface(ha);
2270 } else {
2271 init_fw_cb->ipv4_ip_opts &=
2272 cpu_to_le16(~IPOPT_IPV4_PROTOCOL_ENABLE &
2273 0xFFFF);
2274 qla4xxx_destroy_ipv4_iface(ha);
2275 }
2276 break;
2277 case ISCSI_NET_PARAM_VLAN_TAG:
2278 if (iface_param->len != sizeof(init_fw_cb->ipv4_vlan_tag))
2279 break;
2280 init_fw_cb->ipv4_vlan_tag =
2281 cpu_to_be16(*(uint16_t *)iface_param->value);
2282 break;
2283 case ISCSI_NET_PARAM_VLAN_ENABLED:
2284 if (iface_param->value[0] == ISCSI_VLAN_ENABLE)
2285 init_fw_cb->ipv4_ip_opts |=
2286 cpu_to_le16(IPOPT_VLAN_TAGGING_ENABLE);
2287 else
2288 init_fw_cb->ipv4_ip_opts &=
2289 cpu_to_le16(~IPOPT_VLAN_TAGGING_ENABLE);
2290 break;
2291 case ISCSI_NET_PARAM_MTU:
2292 init_fw_cb->eth_mtu_size =
2293 cpu_to_le16(*(uint16_t *)iface_param->value);
2294 break;
2295 case ISCSI_NET_PARAM_PORT:
2296 init_fw_cb->ipv4_port =
2297 cpu_to_le16(*(uint16_t *)iface_param->value);
2298 break;
2299 case ISCSI_NET_PARAM_DELAYED_ACK_EN:
2300 if (iface_param->iface_num & 0x1)
2301 break;
2302 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2303 init_fw_cb->ipv4_tcp_opts |=
2304 cpu_to_le16(TCPOPT_DELAYED_ACK_DISABLE);
2305 else
2306 init_fw_cb->ipv4_tcp_opts &=
2307 cpu_to_le16(~TCPOPT_DELAYED_ACK_DISABLE &
2308 0xFFFF);
2309 break;
2310 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE:
2311 if (iface_param->iface_num & 0x1)
2312 break;
2313 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2314 init_fw_cb->ipv4_tcp_opts |=
2315 cpu_to_le16(TCPOPT_NAGLE_ALGO_DISABLE);
2316 else
2317 init_fw_cb->ipv4_tcp_opts &=
2318 cpu_to_le16(~TCPOPT_NAGLE_ALGO_DISABLE);
2319 break;
2320 case ISCSI_NET_PARAM_TCP_WSF_DISABLE:
2321 if (iface_param->iface_num & 0x1)
2322 break;
2323 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2324 init_fw_cb->ipv4_tcp_opts |=
2325 cpu_to_le16(TCPOPT_WINDOW_SCALE_DISABLE);
2326 else
2327 init_fw_cb->ipv4_tcp_opts &=
2328 cpu_to_le16(~TCPOPT_WINDOW_SCALE_DISABLE);
2329 break;
2330 case ISCSI_NET_PARAM_TCP_WSF:
2331 if (iface_param->iface_num & 0x1)
2332 break;
2333 init_fw_cb->ipv4_tcp_wsf = iface_param->value[0];
2334 break;
2335 case ISCSI_NET_PARAM_TCP_TIMER_SCALE:
2336 if (iface_param->iface_num & 0x1)
2337 break;
2338 init_fw_cb->ipv4_tcp_opts &= cpu_to_le16(~TCPOPT_TIMER_SCALE);
2339 init_fw_cb->ipv4_tcp_opts |=
2340 cpu_to_le16((iface_param->value[0] << 1) &
2341 TCPOPT_TIMER_SCALE);
2342 break;
2343 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN:
2344 if (iface_param->iface_num & 0x1)
2345 break;
2346 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2347 init_fw_cb->ipv4_tcp_opts |=
2348 cpu_to_le16(TCPOPT_TIMESTAMP_ENABLE);
2349 else
2350 init_fw_cb->ipv4_tcp_opts &=
2351 cpu_to_le16(~TCPOPT_TIMESTAMP_ENABLE);
2352 break;
2353 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN:
2354 if (iface_param->iface_num & 0x1)
2355 break;
2356 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2357 init_fw_cb->ipv4_tcp_opts |=
2358 cpu_to_le16(TCPOPT_DNS_SERVER_IP_EN);
2359 else
2360 init_fw_cb->ipv4_tcp_opts &=
2361 cpu_to_le16(~TCPOPT_DNS_SERVER_IP_EN);
2362 break;
2363 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN:
2364 if (iface_param->iface_num & 0x1)
2365 break;
2366 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2367 init_fw_cb->ipv4_tcp_opts |=
2368 cpu_to_le16(TCPOPT_SLP_DA_INFO_EN);
2369 else
2370 init_fw_cb->ipv4_tcp_opts &=
2371 cpu_to_le16(~TCPOPT_SLP_DA_INFO_EN);
2372 break;
2373 case ISCSI_NET_PARAM_IPV4_TOS_EN:
2374 if (iface_param->iface_num & 0x1)
2375 break;
2376 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2377 init_fw_cb->ipv4_ip_opts |=
2378 cpu_to_le16(IPOPT_IPV4_TOS_EN);
2379 else
2380 init_fw_cb->ipv4_ip_opts &=
2381 cpu_to_le16(~IPOPT_IPV4_TOS_EN);
2382 break;
2383 case ISCSI_NET_PARAM_IPV4_TOS:
2384 if (iface_param->iface_num & 0x1)
2385 break;
2386 init_fw_cb->ipv4_tos = iface_param->value[0];
2387 break;
2388 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN:
2389 if (iface_param->iface_num & 0x1)
2390 break;
2391 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2392 init_fw_cb->ipv4_ip_opts |=
2393 cpu_to_le16(IPOPT_GRAT_ARP_EN);
2394 else
2395 init_fw_cb->ipv4_ip_opts &=
2396 cpu_to_le16(~IPOPT_GRAT_ARP_EN);
2397 break;
2398 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN:
2399 if (iface_param->iface_num & 0x1)
2400 break;
2401 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2402 init_fw_cb->ipv4_ip_opts |=
2403 cpu_to_le16(IPOPT_ALT_CID_EN);
2404 else
2405 init_fw_cb->ipv4_ip_opts &=
2406 cpu_to_le16(~IPOPT_ALT_CID_EN);
2407 break;
2408 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID:
2409 if (iface_param->iface_num & 0x1)
2410 break;
2411 memcpy(init_fw_cb->ipv4_dhcp_alt_cid, iface_param->value,
2412 (sizeof(init_fw_cb->ipv4_dhcp_alt_cid) - 1));
2413 init_fw_cb->ipv4_dhcp_alt_cid_len =
2414 strlen(init_fw_cb->ipv4_dhcp_alt_cid);
2415 break;
2416 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN:
2417 if (iface_param->iface_num & 0x1)
2418 break;
2419 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2420 init_fw_cb->ipv4_ip_opts |=
2421 cpu_to_le16(IPOPT_REQ_VID_EN);
2422 else
2423 init_fw_cb->ipv4_ip_opts &=
2424 cpu_to_le16(~IPOPT_REQ_VID_EN);
2425 break;
2426 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN:
2427 if (iface_param->iface_num & 0x1)
2428 break;
2429 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2430 init_fw_cb->ipv4_ip_opts |=
2431 cpu_to_le16(IPOPT_USE_VID_EN);
2432 else
2433 init_fw_cb->ipv4_ip_opts &=
2434 cpu_to_le16(~IPOPT_USE_VID_EN);
2435 break;
2436 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID:
2437 if (iface_param->iface_num & 0x1)
2438 break;
2439 memcpy(init_fw_cb->ipv4_dhcp_vid, iface_param->value,
2440 (sizeof(init_fw_cb->ipv4_dhcp_vid) - 1));
2441 init_fw_cb->ipv4_dhcp_vid_len =
2442 strlen(init_fw_cb->ipv4_dhcp_vid);
2443 break;
2444 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN:
2445 if (iface_param->iface_num & 0x1)
2446 break;
2447 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2448 init_fw_cb->ipv4_ip_opts |=
2449 cpu_to_le16(IPOPT_LEARN_IQN_EN);
2450 else
2451 init_fw_cb->ipv4_ip_opts &=
2452 cpu_to_le16(~IPOPT_LEARN_IQN_EN);
2453 break;
2454 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE:
2455 if (iface_param->iface_num & 0x1)
2456 break;
2457 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2458 init_fw_cb->ipv4_ip_opts |=
2459 cpu_to_le16(IPOPT_FRAGMENTATION_DISABLE);
2460 else
2461 init_fw_cb->ipv4_ip_opts &=
2462 cpu_to_le16(~IPOPT_FRAGMENTATION_DISABLE);
2463 break;
2464 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN:
2465 if (iface_param->iface_num & 0x1)
2466 break;
2467 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2468 init_fw_cb->ipv4_ip_opts |=
2469 cpu_to_le16(IPOPT_IN_FORWARD_EN);
2470 else
2471 init_fw_cb->ipv4_ip_opts &=
2472 cpu_to_le16(~IPOPT_IN_FORWARD_EN);
2473 break;
2474 case ISCSI_NET_PARAM_REDIRECT_EN:
2475 if (iface_param->iface_num & 0x1)
2476 break;
2477 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2478 init_fw_cb->ipv4_ip_opts |=
2479 cpu_to_le16(IPOPT_ARP_REDIRECT_EN);
2480 else
2481 init_fw_cb->ipv4_ip_opts &=
2482 cpu_to_le16(~IPOPT_ARP_REDIRECT_EN);
2483 break;
2484 case ISCSI_NET_PARAM_IPV4_TTL:
2485 if (iface_param->iface_num & 0x1)
2486 break;
2487 init_fw_cb->ipv4_ttl = iface_param->value[0];
2488 break;
2489 default:
2490 ql4_printk(KERN_ERR, ha, "Unknown IPv4 param = %d\n",
2491 iface_param->param);
2492 break;
2493 }
2494 }
2495
2496 static void qla4xxx_set_iscsi_param(struct scsi_qla_host *ha,
2497 struct iscsi_iface_param_info *iface_param,
2498 struct addr_ctrl_blk *init_fw_cb)
2499 {
2500 switch (iface_param->param) {
2501 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO:
2502 if (iface_param->iface_num & 0x1)
2503 break;
2504 init_fw_cb->def_timeout =
2505 cpu_to_le16(*(uint16_t *)iface_param->value);
2506 break;
2507 case ISCSI_IFACE_PARAM_HDRDGST_EN:
2508 if (iface_param->iface_num & 0x1)
2509 break;
2510 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2511 init_fw_cb->iscsi_opts |=
2512 cpu_to_le16(ISCSIOPTS_HEADER_DIGEST_EN);
2513 else
2514 init_fw_cb->iscsi_opts &=
2515 cpu_to_le16(~ISCSIOPTS_HEADER_DIGEST_EN);
2516 break;
2517 case ISCSI_IFACE_PARAM_DATADGST_EN:
2518 if (iface_param->iface_num & 0x1)
2519 break;
2520 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2521 init_fw_cb->iscsi_opts |=
2522 cpu_to_le16(ISCSIOPTS_DATA_DIGEST_EN);
2523 else
2524 init_fw_cb->iscsi_opts &=
2525 cpu_to_le16(~ISCSIOPTS_DATA_DIGEST_EN);
2526 break;
2527 case ISCSI_IFACE_PARAM_IMM_DATA_EN:
2528 if (iface_param->iface_num & 0x1)
2529 break;
2530 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2531 init_fw_cb->iscsi_opts |=
2532 cpu_to_le16(ISCSIOPTS_IMMEDIATE_DATA_EN);
2533 else
2534 init_fw_cb->iscsi_opts &=
2535 cpu_to_le16(~ISCSIOPTS_IMMEDIATE_DATA_EN);
2536 break;
2537 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN:
2538 if (iface_param->iface_num & 0x1)
2539 break;
2540 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2541 init_fw_cb->iscsi_opts |=
2542 cpu_to_le16(ISCSIOPTS_INITIAL_R2T_EN);
2543 else
2544 init_fw_cb->iscsi_opts &=
2545 cpu_to_le16(~ISCSIOPTS_INITIAL_R2T_EN);
2546 break;
2547 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN:
2548 if (iface_param->iface_num & 0x1)
2549 break;
2550 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2551 init_fw_cb->iscsi_opts |=
2552 cpu_to_le16(ISCSIOPTS_DATA_SEQ_INORDER_EN);
2553 else
2554 init_fw_cb->iscsi_opts &=
2555 cpu_to_le16(~ISCSIOPTS_DATA_SEQ_INORDER_EN);
2556 break;
2557 case ISCSI_IFACE_PARAM_PDU_INORDER_EN:
2558 if (iface_param->iface_num & 0x1)
2559 break;
2560 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2561 init_fw_cb->iscsi_opts |=
2562 cpu_to_le16(ISCSIOPTS_DATA_PDU_INORDER_EN);
2563 else
2564 init_fw_cb->iscsi_opts &=
2565 cpu_to_le16(~ISCSIOPTS_DATA_PDU_INORDER_EN);
2566 break;
2567 case ISCSI_IFACE_PARAM_ERL:
2568 if (iface_param->iface_num & 0x1)
2569 break;
2570 init_fw_cb->iscsi_opts &= cpu_to_le16(~ISCSIOPTS_ERL);
2571 init_fw_cb->iscsi_opts |= cpu_to_le16(iface_param->value[0] &
2572 ISCSIOPTS_ERL);
2573 break;
2574 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH:
2575 if (iface_param->iface_num & 0x1)
2576 break;
2577 init_fw_cb->iscsi_max_pdu_size =
2578 cpu_to_le32(*(uint32_t *)iface_param->value) /
2579 BYTE_UNITS;
2580 break;
2581 case ISCSI_IFACE_PARAM_FIRST_BURST:
2582 if (iface_param->iface_num & 0x1)
2583 break;
2584 init_fw_cb->iscsi_fburst_len =
2585 cpu_to_le32(*(uint32_t *)iface_param->value) /
2586 BYTE_UNITS;
2587 break;
2588 case ISCSI_IFACE_PARAM_MAX_R2T:
2589 if (iface_param->iface_num & 0x1)
2590 break;
2591 init_fw_cb->iscsi_max_outstnd_r2t =
2592 cpu_to_le16(*(uint16_t *)iface_param->value);
2593 break;
2594 case ISCSI_IFACE_PARAM_MAX_BURST:
2595 if (iface_param->iface_num & 0x1)
2596 break;
2597 init_fw_cb->iscsi_max_burst_len =
2598 cpu_to_le32(*(uint32_t *)iface_param->value) /
2599 BYTE_UNITS;
2600 break;
2601 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN:
2602 if (iface_param->iface_num & 0x1)
2603 break;
2604 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2605 init_fw_cb->iscsi_opts |=
2606 cpu_to_le16(ISCSIOPTS_CHAP_AUTH_EN);
2607 else
2608 init_fw_cb->iscsi_opts &=
2609 cpu_to_le16(~ISCSIOPTS_CHAP_AUTH_EN);
2610 break;
2611 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN:
2612 if (iface_param->iface_num & 0x1)
2613 break;
2614 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2615 init_fw_cb->iscsi_opts |=
2616 cpu_to_le16(ISCSIOPTS_BIDI_CHAP_EN);
2617 else
2618 init_fw_cb->iscsi_opts &=
2619 cpu_to_le16(~ISCSIOPTS_BIDI_CHAP_EN);
2620 break;
2621 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL:
2622 if (iface_param->iface_num & 0x1)
2623 break;
2624 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2625 init_fw_cb->iscsi_opts |=
2626 cpu_to_le16(ISCSIOPTS_DISCOVERY_AUTH_EN);
2627 else
2628 init_fw_cb->iscsi_opts &=
2629 cpu_to_le16(~ISCSIOPTS_DISCOVERY_AUTH_EN);
2630 break;
2631 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN:
2632 if (iface_param->iface_num & 0x1)
2633 break;
2634 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2635 init_fw_cb->iscsi_opts |=
2636 cpu_to_le16(ISCSIOPTS_DISCOVERY_LOGOUT_EN);
2637 else
2638 init_fw_cb->iscsi_opts &=
2639 cpu_to_le16(~ISCSIOPTS_DISCOVERY_LOGOUT_EN);
2640 break;
2641 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN:
2642 if (iface_param->iface_num & 0x1)
2643 break;
2644 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2645 init_fw_cb->iscsi_opts |=
2646 cpu_to_le16(ISCSIOPTS_STRICT_LOGIN_COMP_EN);
2647 else
2648 init_fw_cb->iscsi_opts &=
2649 cpu_to_le16(~ISCSIOPTS_STRICT_LOGIN_COMP_EN);
2650 break;
2651 default:
2652 ql4_printk(KERN_ERR, ha, "Unknown iscsi param = %d\n",
2653 iface_param->param);
2654 break;
2655 }
2656 }
2657
2658 static void
2659 qla4xxx_initcb_to_acb(struct addr_ctrl_blk *init_fw_cb)
2660 {
2661 struct addr_ctrl_blk_def *acb;
2662 acb = (struct addr_ctrl_blk_def *)init_fw_cb;
2663 memset(acb->reserved1, 0, sizeof(acb->reserved1));
2664 memset(acb->reserved2, 0, sizeof(acb->reserved2));
2665 memset(acb->reserved3, 0, sizeof(acb->reserved3));
2666 memset(acb->reserved4, 0, sizeof(acb->reserved4));
2667 memset(acb->reserved5, 0, sizeof(acb->reserved5));
2668 memset(acb->reserved6, 0, sizeof(acb->reserved6));
2669 memset(acb->reserved7, 0, sizeof(acb->reserved7));
2670 memset(acb->reserved8, 0, sizeof(acb->reserved8));
2671 memset(acb->reserved9, 0, sizeof(acb->reserved9));
2672 memset(acb->reserved10, 0, sizeof(acb->reserved10));
2673 memset(acb->reserved11, 0, sizeof(acb->reserved11));
2674 memset(acb->reserved12, 0, sizeof(acb->reserved12));
2675 memset(acb->reserved13, 0, sizeof(acb->reserved13));
2676 memset(acb->reserved14, 0, sizeof(acb->reserved14));
2677 memset(acb->reserved15, 0, sizeof(acb->reserved15));
2678 }
2679
2680 static int
2681 qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data, uint32_t len)
2682 {
2683 struct scsi_qla_host *ha = to_qla_host(shost);
2684 int rval = 0;
2685 struct iscsi_iface_param_info *iface_param = NULL;
2686 struct addr_ctrl_blk *init_fw_cb = NULL;
2687 dma_addr_t init_fw_cb_dma;
2688 uint32_t mbox_cmd[MBOX_REG_COUNT];
2689 uint32_t mbox_sts[MBOX_REG_COUNT];
2690 uint32_t rem = len;
2691 struct nlattr *attr;
2692
2693 init_fw_cb = dma_alloc_coherent(&ha->pdev->dev,
2694 sizeof(struct addr_ctrl_blk),
2695 &init_fw_cb_dma, GFP_KERNEL);
2696 if (!init_fw_cb) {
2697 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc init_cb\n",
2698 __func__);
2699 return -ENOMEM;
2700 }
2701
2702 memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk));
2703 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
2704 memset(&mbox_sts, 0, sizeof(mbox_sts));
2705
2706 if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma)) {
2707 ql4_printk(KERN_ERR, ha, "%s: get ifcb failed\n", __func__);
2708 rval = -EIO;
2709 goto exit_init_fw_cb;
2710 }
2711
2712 nla_for_each_attr(attr, data, len, rem) {
2713 iface_param = nla_data(attr);
2714
2715 if (iface_param->param_type == ISCSI_NET_PARAM) {
2716 switch (iface_param->iface_type) {
2717 case ISCSI_IFACE_TYPE_IPV4:
2718 switch (iface_param->iface_num) {
2719 case 0:
2720 qla4xxx_set_ipv4(ha, iface_param,
2721 init_fw_cb);
2722 break;
2723 default:
2724 /* Cannot have more than one IPv4 interface */
2725 ql4_printk(KERN_ERR, ha,
2726 "Invalid IPv4 iface number = %d\n",
2727 iface_param->iface_num);
2728 break;
2729 }
2730 break;
2731 case ISCSI_IFACE_TYPE_IPV6:
2732 switch (iface_param->iface_num) {
2733 case 0:
2734 case 1:
2735 qla4xxx_set_ipv6(ha, iface_param,
2736 init_fw_cb);
2737 break;
2738 default:
2739 /* Cannot have more than two IPv6 interface */
2740 ql4_printk(KERN_ERR, ha,
2741 "Invalid IPv6 iface number = %d\n",
2742 iface_param->iface_num);
2743 break;
2744 }
2745 break;
2746 default:
2747 ql4_printk(KERN_ERR, ha,
2748 "Invalid iface type\n");
2749 break;
2750 }
2751 } else if (iface_param->param_type == ISCSI_IFACE_PARAM) {
2752 qla4xxx_set_iscsi_param(ha, iface_param,
2753 init_fw_cb);
2754 } else {
2755 continue;
2756 }
2757 }
2758
2759 init_fw_cb->cookie = cpu_to_le32(0x11BEAD5A);
2760
2761 rval = qla4xxx_set_flash(ha, init_fw_cb_dma, FLASH_SEGMENT_IFCB,
2762 sizeof(struct addr_ctrl_blk),
2763 FLASH_OPT_RMW_COMMIT);
2764 if (rval != QLA_SUCCESS) {
2765 ql4_printk(KERN_ERR, ha, "%s: set flash mbx failed\n",
2766 __func__);
2767 rval = -EIO;
2768 goto exit_init_fw_cb;
2769 }
2770
2771 rval = qla4xxx_disable_acb(ha);
2772 if (rval != QLA_SUCCESS) {
2773 ql4_printk(KERN_ERR, ha, "%s: disable acb mbx failed\n",
2774 __func__);
2775 rval = -EIO;
2776 goto exit_init_fw_cb;
2777 }
2778
2779 wait_for_completion_timeout(&ha->disable_acb_comp,
2780 DISABLE_ACB_TOV * HZ);
2781
2782 qla4xxx_initcb_to_acb(init_fw_cb);
2783
2784 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma);
2785 if (rval != QLA_SUCCESS) {
2786 ql4_printk(KERN_ERR, ha, "%s: set acb mbx failed\n",
2787 __func__);
2788 rval = -EIO;
2789 goto exit_init_fw_cb;
2790 }
2791
2792 memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk));
2793 qla4xxx_update_local_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb,
2794 init_fw_cb_dma);
2795
2796 exit_init_fw_cb:
2797 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk),
2798 init_fw_cb, init_fw_cb_dma);
2799
2800 return rval;
2801 }
2802
2803 static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess,
2804 enum iscsi_param param, char *buf)
2805 {
2806 struct iscsi_session *sess = cls_sess->dd_data;
2807 struct ddb_entry *ddb_entry = sess->dd_data;
2808 struct scsi_qla_host *ha = ddb_entry->ha;
2809 struct iscsi_cls_conn *cls_conn = ddb_entry->conn;
2810 struct ql4_chap_table chap_tbl;
2811 int rval, len;
2812 uint16_t idx;
2813
2814 memset(&chap_tbl, 0, sizeof(chap_tbl));
2815 switch (param) {
2816 case ISCSI_PARAM_CHAP_IN_IDX:
2817 rval = qla4xxx_get_chap_index(ha, sess->username_in,
2818 sess->password_in, BIDI_CHAP,
2819 &idx);
2820 if (rval)
2821 len = sprintf(buf, "\n");
2822 else
2823 len = sprintf(buf, "%hu\n", idx);
2824 break;
2825 case ISCSI_PARAM_CHAP_OUT_IDX:
2826 if (ddb_entry->ddb_type == FLASH_DDB) {
2827 if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) {
2828 idx = ddb_entry->chap_tbl_idx;
2829 rval = QLA_SUCCESS;
2830 } else {
2831 rval = QLA_ERROR;
2832 }
2833 } else {
2834 rval = qla4xxx_get_chap_index(ha, sess->username,
2835 sess->password,
2836 LOCAL_CHAP, &idx);
2837 }
2838 if (rval)
2839 len = sprintf(buf, "\n");
2840 else
2841 len = sprintf(buf, "%hu\n", idx);
2842 break;
2843 case ISCSI_PARAM_USERNAME:
2844 case ISCSI_PARAM_PASSWORD:
2845 /* First, populate session username and password for FLASH DDB,
2846 * if not already done. This happens when session login fails
2847 * for a FLASH DDB.
2848 */
2849 if (ddb_entry->ddb_type == FLASH_DDB &&
2850 ddb_entry->chap_tbl_idx != INVALID_ENTRY &&
2851 !sess->username && !sess->password) {
2852 idx = ddb_entry->chap_tbl_idx;
2853 rval = qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name,
2854 chap_tbl.secret,
2855 idx);
2856 if (!rval) {
2857 iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME,
2858 (char *)chap_tbl.name,
2859 strlen((char *)chap_tbl.name));
2860 iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD,
2861 (char *)chap_tbl.secret,
2862 chap_tbl.secret_len);
2863 }
2864 }
2865 /* allow fall-through */
2866 default:
2867 return iscsi_session_get_param(cls_sess, param, buf);
2868 }
2869
2870 return len;
2871 }
2872
2873 static int qla4xxx_conn_get_param(struct iscsi_cls_conn *cls_conn,
2874 enum iscsi_param param, char *buf)
2875 {
2876 struct iscsi_conn *conn;
2877 struct qla_conn *qla_conn;
2878 struct sockaddr *dst_addr;
2879
2880 conn = cls_conn->dd_data;
2881 qla_conn = conn->dd_data;
2882 dst_addr = (struct sockaddr *)&qla_conn->qla_ep->dst_addr;
2883
2884 switch (param) {
2885 case ISCSI_PARAM_CONN_PORT:
2886 case ISCSI_PARAM_CONN_ADDRESS:
2887 return iscsi_conn_get_addr_param((struct sockaddr_storage *)
2888 dst_addr, param, buf);
2889 default:
2890 return iscsi_conn_get_param(cls_conn, param, buf);
2891 }
2892 }
2893
2894 int qla4xxx_get_ddb_index(struct scsi_qla_host *ha, uint16_t *ddb_index)
2895 {
2896 uint32_t mbx_sts = 0;
2897 uint16_t tmp_ddb_index;
2898 int ret;
2899
2900 get_ddb_index:
2901 tmp_ddb_index = find_first_zero_bit(ha->ddb_idx_map, MAX_DDB_ENTRIES);
2902
2903 if (tmp_ddb_index >= MAX_DDB_ENTRIES) {
2904 DEBUG2(ql4_printk(KERN_INFO, ha,
2905 "Free DDB index not available\n"));
2906 ret = QLA_ERROR;
2907 goto exit_get_ddb_index;
2908 }
2909
2910 if (test_and_set_bit(tmp_ddb_index, ha->ddb_idx_map))
2911 goto get_ddb_index;
2912
2913 DEBUG2(ql4_printk(KERN_INFO, ha,
2914 "Found a free DDB index at %d\n", tmp_ddb_index));
2915 ret = qla4xxx_req_ddb_entry(ha, tmp_ddb_index, &mbx_sts);
2916 if (ret == QLA_ERROR) {
2917 if (mbx_sts == MBOX_STS_COMMAND_ERROR) {
2918 ql4_printk(KERN_INFO, ha,
2919 "DDB index = %d not available trying next\n",
2920 tmp_ddb_index);
2921 goto get_ddb_index;
2922 }
2923 DEBUG2(ql4_printk(KERN_INFO, ha,
2924 "Free FW DDB not available\n"));
2925 }
2926
2927 *ddb_index = tmp_ddb_index;
2928
2929 exit_get_ddb_index:
2930 return ret;
2931 }
2932
2933 static int qla4xxx_match_ipaddress(struct scsi_qla_host *ha,
2934 struct ddb_entry *ddb_entry,
2935 char *existing_ipaddr,
2936 char *user_ipaddr)
2937 {
2938 uint8_t dst_ipaddr[IPv6_ADDR_LEN];
2939 char formatted_ipaddr[DDB_IPADDR_LEN];
2940 int status = QLA_SUCCESS, ret = 0;
2941
2942 if (ddb_entry->fw_ddb_entry.options & DDB_OPT_IPV6_DEVICE) {
2943 ret = in6_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr,
2944 '\0', NULL);
2945 if (ret == 0) {
2946 status = QLA_ERROR;
2947 goto out_match;
2948 }
2949 ret = sprintf(formatted_ipaddr, "%pI6", dst_ipaddr);
2950 } else {
2951 ret = in4_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr,
2952 '\0', NULL);
2953 if (ret == 0) {
2954 status = QLA_ERROR;
2955 goto out_match;
2956 }
2957 ret = sprintf(formatted_ipaddr, "%pI4", dst_ipaddr);
2958 }
2959
2960 if (strcmp(existing_ipaddr, formatted_ipaddr))
2961 status = QLA_ERROR;
2962
2963 out_match:
2964 return status;
2965 }
2966
2967 static int qla4xxx_match_fwdb_session(struct scsi_qla_host *ha,
2968 struct iscsi_cls_conn *cls_conn)
2969 {
2970 int idx = 0, max_ddbs, rval;
2971 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
2972 struct iscsi_session *sess, *existing_sess;
2973 struct iscsi_conn *conn, *existing_conn;
2974 struct ddb_entry *ddb_entry;
2975
2976 sess = cls_sess->dd_data;
2977 conn = cls_conn->dd_data;
2978
2979 if (sess->targetname == NULL ||
2980 conn->persistent_address == NULL ||
2981 conn->persistent_port == 0)
2982 return QLA_ERROR;
2983
2984 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
2985 MAX_DEV_DB_ENTRIES;
2986
2987 for (idx = 0; idx < max_ddbs; idx++) {
2988 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
2989 if (ddb_entry == NULL)
2990 continue;
2991
2992 if (ddb_entry->ddb_type != FLASH_DDB)
2993 continue;
2994
2995 existing_sess = ddb_entry->sess->dd_data;
2996 existing_conn = ddb_entry->conn->dd_data;
2997
2998 if (existing_sess->targetname == NULL ||
2999 existing_conn->persistent_address == NULL ||
3000 existing_conn->persistent_port == 0)
3001 continue;
3002
3003 DEBUG2(ql4_printk(KERN_INFO, ha,
3004 "IQN = %s User IQN = %s\n",
3005 existing_sess->targetname,
3006 sess->targetname));
3007
3008 DEBUG2(ql4_printk(KERN_INFO, ha,
3009 "IP = %s User IP = %s\n",
3010 existing_conn->persistent_address,
3011 conn->persistent_address));
3012
3013 DEBUG2(ql4_printk(KERN_INFO, ha,
3014 "Port = %d User Port = %d\n",
3015 existing_conn->persistent_port,
3016 conn->persistent_port));
3017
3018 if (strcmp(existing_sess->targetname, sess->targetname))
3019 continue;
3020 rval = qla4xxx_match_ipaddress(ha, ddb_entry,
3021 existing_conn->persistent_address,
3022 conn->persistent_address);
3023 if (rval == QLA_ERROR)
3024 continue;
3025 if (existing_conn->persistent_port != conn->persistent_port)
3026 continue;
3027 break;
3028 }
3029
3030 if (idx == max_ddbs)
3031 return QLA_ERROR;
3032
3033 DEBUG2(ql4_printk(KERN_INFO, ha,
3034 "Match found in fwdb sessions\n"));
3035 return QLA_SUCCESS;
3036 }
3037
3038 static struct iscsi_cls_session *
3039 qla4xxx_session_create(struct iscsi_endpoint *ep,
3040 uint16_t cmds_max, uint16_t qdepth,
3041 uint32_t initial_cmdsn)
3042 {
3043 struct iscsi_cls_session *cls_sess;
3044 struct scsi_qla_host *ha;
3045 struct qla_endpoint *qla_ep;
3046 struct ddb_entry *ddb_entry;
3047 uint16_t ddb_index;
3048 struct iscsi_session *sess;
3049 struct sockaddr *dst_addr;
3050 int ret;
3051
3052 if (!ep) {
3053 printk(KERN_ERR "qla4xxx: missing ep.\n");
3054 return NULL;
3055 }
3056
3057 qla_ep = ep->dd_data;
3058 dst_addr = (struct sockaddr *)&qla_ep->dst_addr;
3059 ha = to_qla_host(qla_ep->host);
3060 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__,
3061 ha->host_no));
3062
3063 ret = qla4xxx_get_ddb_index(ha, &ddb_index);
3064 if (ret == QLA_ERROR)
3065 return NULL;
3066
3067 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, qla_ep->host,
3068 cmds_max, sizeof(struct ddb_entry),
3069 sizeof(struct ql4_task_data),
3070 initial_cmdsn, ddb_index);
3071 if (!cls_sess)
3072 return NULL;
3073
3074 sess = cls_sess->dd_data;
3075 ddb_entry = sess->dd_data;
3076 ddb_entry->fw_ddb_index = ddb_index;
3077 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE;
3078 ddb_entry->ha = ha;
3079 ddb_entry->sess = cls_sess;
3080 ddb_entry->unblock_sess = qla4xxx_unblock_ddb;
3081 ddb_entry->ddb_change = qla4xxx_ddb_change;
3082 clear_bit(DDB_CONN_CLOSE_FAILURE, &ddb_entry->flags);
3083 cls_sess->recovery_tmo = ql4xsess_recovery_tmo;
3084 ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry;
3085 ha->tot_ddbs++;
3086
3087 return cls_sess;
3088 }
3089
3090 static void qla4xxx_session_destroy(struct iscsi_cls_session *cls_sess)
3091 {
3092 struct iscsi_session *sess;
3093 struct ddb_entry *ddb_entry;
3094 struct scsi_qla_host *ha;
3095 unsigned long flags, wtime;
3096 struct dev_db_entry *fw_ddb_entry = NULL;
3097 dma_addr_t fw_ddb_entry_dma;
3098 uint32_t ddb_state;
3099 int ret;
3100
3101 sess = cls_sess->dd_data;
3102 ddb_entry = sess->dd_data;
3103 ha = ddb_entry->ha;
3104 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__,
3105 ha->host_no));
3106
3107 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3108 &fw_ddb_entry_dma, GFP_KERNEL);
3109 if (!fw_ddb_entry) {
3110 ql4_printk(KERN_ERR, ha,
3111 "%s: Unable to allocate dma buffer\n", __func__);
3112 goto destroy_session;
3113 }
3114
3115 wtime = jiffies + (HZ * LOGOUT_TOV);
3116 do {
3117 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
3118 fw_ddb_entry, fw_ddb_entry_dma,
3119 NULL, NULL, &ddb_state, NULL,
3120 NULL, NULL);
3121 if (ret == QLA_ERROR)
3122 goto destroy_session;
3123
3124 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) ||
3125 (ddb_state == DDB_DS_SESSION_FAILED))
3126 goto destroy_session;
3127
3128 schedule_timeout_uninterruptible(HZ);
3129 } while ((time_after(wtime, jiffies)));
3130
3131 destroy_session:
3132 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
3133 if (test_and_clear_bit(DDB_CONN_CLOSE_FAILURE, &ddb_entry->flags))
3134 clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map);
3135 spin_lock_irqsave(&ha->hardware_lock, flags);
3136 qla4xxx_free_ddb(ha, ddb_entry);
3137 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3138
3139 iscsi_session_teardown(cls_sess);
3140
3141 if (fw_ddb_entry)
3142 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3143 fw_ddb_entry, fw_ddb_entry_dma);
3144 }
3145
3146 static struct iscsi_cls_conn *
3147 qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx)
3148 {
3149 struct iscsi_cls_conn *cls_conn;
3150 struct iscsi_session *sess;
3151 struct ddb_entry *ddb_entry;
3152 struct scsi_qla_host *ha;
3153
3154 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn),
3155 conn_idx);
3156 if (!cls_conn) {
3157 pr_info("%s: Can not create connection for conn_idx = %u\n",
3158 __func__, conn_idx);
3159 return NULL;
3160 }
3161
3162 sess = cls_sess->dd_data;
3163 ddb_entry = sess->dd_data;
3164 ddb_entry->conn = cls_conn;
3165
3166 ha = ddb_entry->ha;
3167 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: conn_idx = %u\n", __func__,
3168 conn_idx));
3169 return cls_conn;
3170 }
3171
3172 static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session,
3173 struct iscsi_cls_conn *cls_conn,
3174 uint64_t transport_fd, int is_leading)
3175 {
3176 struct iscsi_conn *conn;
3177 struct qla_conn *qla_conn;
3178 struct iscsi_endpoint *ep;
3179 struct ddb_entry *ddb_entry;
3180 struct scsi_qla_host *ha;
3181 struct iscsi_session *sess;
3182
3183 sess = cls_session->dd_data;
3184 ddb_entry = sess->dd_data;
3185 ha = ddb_entry->ha;
3186
3187 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: sid = %d, cid = %d\n", __func__,
3188 cls_session->sid, cls_conn->cid));
3189
3190 if (iscsi_conn_bind(cls_session, cls_conn, is_leading))
3191 return -EINVAL;
3192 ep = iscsi_lookup_endpoint(transport_fd);
3193 conn = cls_conn->dd_data;
3194 qla_conn = conn->dd_data;
3195 qla_conn->qla_ep = ep->dd_data;
3196 return 0;
3197 }
3198
3199 static int qla4xxx_conn_start(struct iscsi_cls_conn *cls_conn)
3200 {
3201 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
3202 struct iscsi_session *sess;
3203 struct ddb_entry *ddb_entry;
3204 struct scsi_qla_host *ha;
3205 struct dev_db_entry *fw_ddb_entry = NULL;
3206 dma_addr_t fw_ddb_entry_dma;
3207 uint32_t mbx_sts = 0;
3208 int ret = 0;
3209 int status = QLA_SUCCESS;
3210
3211 sess = cls_sess->dd_data;
3212 ddb_entry = sess->dd_data;
3213 ha = ddb_entry->ha;
3214 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: sid = %d, cid = %d\n", __func__,
3215 cls_sess->sid, cls_conn->cid));
3216
3217 /* Check if we have matching FW DDB, if yes then do not
3218 * login to this target. This could cause target to logout previous
3219 * connection
3220 */
3221 ret = qla4xxx_match_fwdb_session(ha, cls_conn);
3222 if (ret == QLA_SUCCESS) {
3223 ql4_printk(KERN_INFO, ha,
3224 "Session already exist in FW.\n");
3225 ret = -EEXIST;
3226 goto exit_conn_start;
3227 }
3228
3229 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3230 &fw_ddb_entry_dma, GFP_KERNEL);
3231 if (!fw_ddb_entry) {
3232 ql4_printk(KERN_ERR, ha,
3233 "%s: Unable to allocate dma buffer\n", __func__);
3234 ret = -ENOMEM;
3235 goto exit_conn_start;
3236 }
3237
3238 ret = qla4xxx_set_param_ddbentry(ha, ddb_entry, cls_conn, &mbx_sts);
3239 if (ret) {
3240 /* If iscsid is stopped and started then no need to do
3241 * set param again since ddb state will be already
3242 * active and FW does not allow set ddb to an
3243 * active session.
3244 */
3245 if (mbx_sts)
3246 if (ddb_entry->fw_ddb_device_state ==
3247 DDB_DS_SESSION_ACTIVE) {
3248 ddb_entry->unblock_sess(ddb_entry->sess);
3249 goto exit_set_param;
3250 }
3251
3252 ql4_printk(KERN_ERR, ha, "%s: Failed set param for index[%d]\n",
3253 __func__, ddb_entry->fw_ddb_index);
3254 goto exit_conn_start;
3255 }
3256
3257 status = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index);
3258 if (status == QLA_ERROR) {
3259 ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__,
3260 sess->targetname);
3261 ret = -EINVAL;
3262 goto exit_conn_start;
3263 }
3264
3265 if (ddb_entry->fw_ddb_device_state == DDB_DS_NO_CONNECTION_ACTIVE)
3266 ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS;
3267
3268 DEBUG2(printk(KERN_INFO "%s: DDB state [%d]\n", __func__,
3269 ddb_entry->fw_ddb_device_state));
3270
3271 exit_set_param:
3272 ret = 0;
3273
3274 exit_conn_start:
3275 if (fw_ddb_entry)
3276 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3277 fw_ddb_entry, fw_ddb_entry_dma);
3278 return ret;
3279 }
3280
3281 static void qla4xxx_conn_destroy(struct iscsi_cls_conn *cls_conn)
3282 {
3283 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
3284 struct iscsi_session *sess;
3285 struct scsi_qla_host *ha;
3286 struct ddb_entry *ddb_entry;
3287 int options;
3288
3289 sess = cls_sess->dd_data;
3290 ddb_entry = sess->dd_data;
3291 ha = ddb_entry->ha;
3292 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: cid = %d\n", __func__,
3293 cls_conn->cid));
3294
3295 options = LOGOUT_OPTION_CLOSE_SESSION;
3296 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR)
3297 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__);
3298 }
3299
3300 static void qla4xxx_task_work(struct work_struct *wdata)
3301 {
3302 struct ql4_task_data *task_data;
3303 struct scsi_qla_host *ha;
3304 struct passthru_status *sts;
3305 struct iscsi_task *task;
3306 struct iscsi_hdr *hdr;
3307 uint8_t *data;
3308 uint32_t data_len;
3309 struct iscsi_conn *conn;
3310 int hdr_len;
3311 itt_t itt;
3312
3313 task_data = container_of(wdata, struct ql4_task_data, task_work);
3314 ha = task_data->ha;
3315 task = task_data->task;
3316 sts = &task_data->sts;
3317 hdr_len = sizeof(struct iscsi_hdr);
3318
3319 DEBUG3(printk(KERN_INFO "Status returned\n"));
3320 DEBUG3(qla4xxx_dump_buffer(sts, 64));
3321 DEBUG3(printk(KERN_INFO "Response buffer"));
3322 DEBUG3(qla4xxx_dump_buffer(task_data->resp_buffer, 64));
3323
3324 conn = task->conn;
3325
3326 switch (sts->completionStatus) {
3327 case PASSTHRU_STATUS_COMPLETE:
3328 hdr = (struct iscsi_hdr *)task_data->resp_buffer;
3329 /* Assign back the itt in hdr, until we use the PREASSIGN_TAG */
3330 itt = sts->handle;
3331 hdr->itt = itt;
3332 data = task_data->resp_buffer + hdr_len;
3333 data_len = task_data->resp_len - hdr_len;
3334 iscsi_complete_pdu(conn, hdr, data, data_len);
3335 break;
3336 default:
3337 ql4_printk(KERN_ERR, ha, "Passthru failed status = 0x%x\n",
3338 sts->completionStatus);
3339 break;
3340 }
3341 return;
3342 }
3343
3344 static int qla4xxx_alloc_pdu(struct iscsi_task *task, uint8_t opcode)
3345 {
3346 struct ql4_task_data *task_data;
3347 struct iscsi_session *sess;
3348 struct ddb_entry *ddb_entry;
3349 struct scsi_qla_host *ha;
3350 int hdr_len;
3351
3352 sess = task->conn->session;
3353 ddb_entry = sess->dd_data;
3354 ha = ddb_entry->ha;
3355 task_data = task->dd_data;
3356 memset(task_data, 0, sizeof(struct ql4_task_data));
3357
3358 if (task->sc) {
3359 ql4_printk(KERN_INFO, ha,
3360 "%s: SCSI Commands not implemented\n", __func__);
3361 return -EINVAL;
3362 }
3363
3364 hdr_len = sizeof(struct iscsi_hdr);
3365 task_data->ha = ha;
3366 task_data->task = task;
3367
3368 if (task->data_count) {
3369 task_data->data_dma = dma_map_single(&ha->pdev->dev, task->data,
3370 task->data_count,
3371 PCI_DMA_TODEVICE);
3372 }
3373
3374 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n",
3375 __func__, task->conn->max_recv_dlength, hdr_len));
3376
3377 task_data->resp_len = task->conn->max_recv_dlength + hdr_len;
3378 task_data->resp_buffer = dma_alloc_coherent(&ha->pdev->dev,
3379 task_data->resp_len,
3380 &task_data->resp_dma,
3381 GFP_ATOMIC);
3382 if (!task_data->resp_buffer)
3383 goto exit_alloc_pdu;
3384
3385 task_data->req_len = task->data_count + hdr_len;
3386 task_data->req_buffer = dma_alloc_coherent(&ha->pdev->dev,
3387 task_data->req_len,
3388 &task_data->req_dma,
3389 GFP_ATOMIC);
3390 if (!task_data->req_buffer)
3391 goto exit_alloc_pdu;
3392
3393 task->hdr = task_data->req_buffer;
3394
3395 INIT_WORK(&task_data->task_work, qla4xxx_task_work);
3396
3397 return 0;
3398
3399 exit_alloc_pdu:
3400 if (task_data->resp_buffer)
3401 dma_free_coherent(&ha->pdev->dev, task_data->resp_len,
3402 task_data->resp_buffer, task_data->resp_dma);
3403
3404 if (task_data->req_buffer)
3405 dma_free_coherent(&ha->pdev->dev, task_data->req_len,
3406 task_data->req_buffer, task_data->req_dma);
3407 return -ENOMEM;
3408 }
3409
3410 static void qla4xxx_task_cleanup(struct iscsi_task *task)
3411 {
3412 struct ql4_task_data *task_data;
3413 struct iscsi_session *sess;
3414 struct ddb_entry *ddb_entry;
3415 struct scsi_qla_host *ha;
3416 int hdr_len;
3417
3418 hdr_len = sizeof(struct iscsi_hdr);
3419 sess = task->conn->session;
3420 ddb_entry = sess->dd_data;
3421 ha = ddb_entry->ha;
3422 task_data = task->dd_data;
3423
3424 if (task->data_count) {
3425 dma_unmap_single(&ha->pdev->dev, task_data->data_dma,
3426 task->data_count, PCI_DMA_TODEVICE);
3427 }
3428
3429 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n",
3430 __func__, task->conn->max_recv_dlength, hdr_len));
3431
3432 dma_free_coherent(&ha->pdev->dev, task_data->resp_len,
3433 task_data->resp_buffer, task_data->resp_dma);
3434 dma_free_coherent(&ha->pdev->dev, task_data->req_len,
3435 task_data->req_buffer, task_data->req_dma);
3436 return;
3437 }
3438
3439 static int qla4xxx_task_xmit(struct iscsi_task *task)
3440 {
3441 struct scsi_cmnd *sc = task->sc;
3442 struct iscsi_session *sess = task->conn->session;
3443 struct ddb_entry *ddb_entry = sess->dd_data;
3444 struct scsi_qla_host *ha = ddb_entry->ha;
3445
3446 if (!sc)
3447 return qla4xxx_send_passthru0(task);
3448
3449 ql4_printk(KERN_INFO, ha, "%s: scsi cmd xmit not implemented\n",
3450 __func__);
3451 return -ENOSYS;
3452 }
3453
3454 static int qla4xxx_copy_from_fwddb_param(struct iscsi_bus_flash_session *sess,
3455 struct iscsi_bus_flash_conn *conn,
3456 struct dev_db_entry *fw_ddb_entry)
3457 {
3458 unsigned long options = 0;
3459 int rc = 0;
3460
3461 options = le16_to_cpu(fw_ddb_entry->options);
3462 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options);
3463 if (test_bit(OPT_IPV6_DEVICE, &options)) {
3464 rc = iscsi_switch_str_param(&sess->portal_type,
3465 PORTAL_TYPE_IPV6);
3466 if (rc)
3467 goto exit_copy;
3468 } else {
3469 rc = iscsi_switch_str_param(&sess->portal_type,
3470 PORTAL_TYPE_IPV4);
3471 if (rc)
3472 goto exit_copy;
3473 }
3474
3475 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE,
3476 &options);
3477 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options);
3478 sess->entry_state = test_bit(OPT_ENTRY_STATE, &options);
3479
3480 options = le16_to_cpu(fw_ddb_entry->iscsi_options);
3481 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options);
3482 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options);
3483 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options);
3484 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options);
3485 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER,
3486 &options);
3487 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options);
3488 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options);
3489 conn->snack_req_en = test_bit(ISCSIOPT_SNACK_REQ_EN, &options);
3490 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN,
3491 &options);
3492 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options);
3493 sess->discovery_auth_optional =
3494 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options);
3495 if (test_bit(ISCSIOPT_ERL1, &options))
3496 sess->erl |= BIT_1;
3497 if (test_bit(ISCSIOPT_ERL0, &options))
3498 sess->erl |= BIT_0;
3499
3500 options = le16_to_cpu(fw_ddb_entry->tcp_options);
3501 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options);
3502 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options);
3503 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options);
3504 if (test_bit(TCPOPT_TIMER_SCALE3, &options))
3505 conn->tcp_timer_scale |= BIT_3;
3506 if (test_bit(TCPOPT_TIMER_SCALE2, &options))
3507 conn->tcp_timer_scale |= BIT_2;
3508 if (test_bit(TCPOPT_TIMER_SCALE1, &options))
3509 conn->tcp_timer_scale |= BIT_1;
3510
3511 conn->tcp_timer_scale >>= 1;
3512 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options);
3513
3514 options = le16_to_cpu(fw_ddb_entry->ip_options);
3515 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options);
3516
3517 conn->max_recv_dlength = BYTE_UNITS *
3518 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len);
3519 conn->max_xmit_dlength = BYTE_UNITS *
3520 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len);
3521 sess->first_burst = BYTE_UNITS *
3522 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len);
3523 sess->max_burst = BYTE_UNITS *
3524 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len);
3525 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t);
3526 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
3527 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain);
3528 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
3529 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss);
3530 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf;
3531 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf;
3532 conn->ipv6_flow_label = le16_to_cpu(fw_ddb_entry->ipv6_flow_lbl);
3533 conn->keepalive_timeout = le16_to_cpu(fw_ddb_entry->ka_timeout);
3534 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port);
3535 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn);
3536 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn);
3537 sess->discovery_parent_idx = le16_to_cpu(fw_ddb_entry->ddb_link);
3538 sess->discovery_parent_type = le16_to_cpu(fw_ddb_entry->ddb_link);
3539 sess->chap_out_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
3540 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid);
3541
3542 sess->default_taskmgmt_timeout =
3543 le16_to_cpu(fw_ddb_entry->def_timeout);
3544 conn->port = le16_to_cpu(fw_ddb_entry->port);
3545
3546 options = le16_to_cpu(fw_ddb_entry->options);
3547 conn->ipaddress = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL);
3548 if (!conn->ipaddress) {
3549 rc = -ENOMEM;
3550 goto exit_copy;
3551 }
3552
3553 conn->redirect_ipaddr = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL);
3554 if (!conn->redirect_ipaddr) {
3555 rc = -ENOMEM;
3556 goto exit_copy;
3557 }
3558
3559 memcpy(conn->ipaddress, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN);
3560 memcpy(conn->redirect_ipaddr, fw_ddb_entry->tgt_addr, IPv6_ADDR_LEN);
3561
3562 if (test_bit(OPT_IPV6_DEVICE, &options)) {
3563 conn->ipv6_traffic_class = fw_ddb_entry->ipv4_tos;
3564
3565 conn->link_local_ipv6_addr = kmemdup(
3566 fw_ddb_entry->link_local_ipv6_addr,
3567 IPv6_ADDR_LEN, GFP_KERNEL);
3568 if (!conn->link_local_ipv6_addr) {
3569 rc = -ENOMEM;
3570 goto exit_copy;
3571 }
3572 } else {
3573 conn->ipv4_tos = fw_ddb_entry->ipv4_tos;
3574 }
3575
3576 if (fw_ddb_entry->iscsi_name[0]) {
3577 rc = iscsi_switch_str_param(&sess->targetname,
3578 (char *)fw_ddb_entry->iscsi_name);
3579 if (rc)
3580 goto exit_copy;
3581 }
3582
3583 if (fw_ddb_entry->iscsi_alias[0]) {
3584 rc = iscsi_switch_str_param(&sess->targetalias,
3585 (char *)fw_ddb_entry->iscsi_alias);
3586 if (rc)
3587 goto exit_copy;
3588 }
3589
3590 COPY_ISID(sess->isid, fw_ddb_entry->isid);
3591
3592 exit_copy:
3593 return rc;
3594 }
3595
3596 static int qla4xxx_copy_to_fwddb_param(struct iscsi_bus_flash_session *sess,
3597 struct iscsi_bus_flash_conn *conn,
3598 struct dev_db_entry *fw_ddb_entry)
3599 {
3600 uint16_t options;
3601 int rc = 0;
3602
3603 options = le16_to_cpu(fw_ddb_entry->options);
3604 SET_BITVAL(conn->is_fw_assigned_ipv6, options, BIT_11);
3605 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4))
3606 options |= BIT_8;
3607 else
3608 options &= ~BIT_8;
3609
3610 SET_BITVAL(sess->auto_snd_tgt_disable, options, BIT_6);
3611 SET_BITVAL(sess->discovery_sess, options, BIT_4);
3612 SET_BITVAL(sess->entry_state, options, BIT_3);
3613 fw_ddb_entry->options = cpu_to_le16(options);
3614
3615 options = le16_to_cpu(fw_ddb_entry->iscsi_options);
3616 SET_BITVAL(conn->hdrdgst_en, options, BIT_13);
3617 SET_BITVAL(conn->datadgst_en, options, BIT_12);
3618 SET_BITVAL(sess->imm_data_en, options, BIT_11);
3619 SET_BITVAL(sess->initial_r2t_en, options, BIT_10);
3620 SET_BITVAL(sess->dataseq_inorder_en, options, BIT_9);
3621 SET_BITVAL(sess->pdu_inorder_en, options, BIT_8);
3622 SET_BITVAL(sess->chap_auth_en, options, BIT_7);
3623 SET_BITVAL(conn->snack_req_en, options, BIT_6);
3624 SET_BITVAL(sess->discovery_logout_en, options, BIT_5);
3625 SET_BITVAL(sess->bidi_chap_en, options, BIT_4);
3626 SET_BITVAL(sess->discovery_auth_optional, options, BIT_3);
3627 SET_BITVAL(sess->erl & BIT_1, options, BIT_1);
3628 SET_BITVAL(sess->erl & BIT_0, options, BIT_0);
3629 fw_ddb_entry->iscsi_options = cpu_to_le16(options);
3630
3631 options = le16_to_cpu(fw_ddb_entry->tcp_options);
3632 SET_BITVAL(conn->tcp_timestamp_stat, options, BIT_6);
3633 SET_BITVAL(conn->tcp_nagle_disable, options, BIT_5);
3634 SET_BITVAL(conn->tcp_wsf_disable, options, BIT_4);
3635 SET_BITVAL(conn->tcp_timer_scale & BIT_2, options, BIT_3);
3636 SET_BITVAL(conn->tcp_timer_scale & BIT_1, options, BIT_2);
3637 SET_BITVAL(conn->tcp_timer_scale & BIT_0, options, BIT_1);
3638 SET_BITVAL(conn->tcp_timestamp_en, options, BIT_0);
3639 fw_ddb_entry->tcp_options = cpu_to_le16(options);
3640
3641 options = le16_to_cpu(fw_ddb_entry->ip_options);
3642 SET_BITVAL(conn->fragment_disable, options, BIT_4);
3643 fw_ddb_entry->ip_options = cpu_to_le16(options);
3644
3645 fw_ddb_entry->iscsi_max_outsnd_r2t = cpu_to_le16(sess->max_r2t);
3646 fw_ddb_entry->iscsi_max_rcv_data_seg_len =
3647 cpu_to_le16(conn->max_recv_dlength / BYTE_UNITS);
3648 fw_ddb_entry->iscsi_max_snd_data_seg_len =
3649 cpu_to_le16(conn->max_xmit_dlength / BYTE_UNITS);
3650 fw_ddb_entry->iscsi_first_burst_len =
3651 cpu_to_le16(sess->first_burst / BYTE_UNITS);
3652 fw_ddb_entry->iscsi_max_burst_len = cpu_to_le16(sess->max_burst /
3653 BYTE_UNITS);
3654 fw_ddb_entry->iscsi_def_time2wait = cpu_to_le16(sess->time2wait);
3655 fw_ddb_entry->iscsi_def_time2retain = cpu_to_le16(sess->time2retain);
3656 fw_ddb_entry->tgt_portal_grp = cpu_to_le16(sess->tpgt);
3657 fw_ddb_entry->mss = cpu_to_le16(conn->max_segment_size);
3658 fw_ddb_entry->tcp_xmt_wsf = (uint8_t) cpu_to_le32(conn->tcp_xmit_wsf);
3659 fw_ddb_entry->tcp_rcv_wsf = (uint8_t) cpu_to_le32(conn->tcp_recv_wsf);
3660 fw_ddb_entry->ipv6_flow_lbl = cpu_to_le16(conn->ipv6_flow_label);
3661 fw_ddb_entry->ka_timeout = cpu_to_le16(conn->keepalive_timeout);
3662 fw_ddb_entry->lcl_port = cpu_to_le16(conn->local_port);
3663 fw_ddb_entry->stat_sn = cpu_to_le32(conn->statsn);
3664 fw_ddb_entry->exp_stat_sn = cpu_to_le32(conn->exp_statsn);
3665 fw_ddb_entry->ddb_link = cpu_to_le16(sess->discovery_parent_idx);
3666 fw_ddb_entry->chap_tbl_idx = cpu_to_le16(sess->chap_out_idx);
3667 fw_ddb_entry->tsid = cpu_to_le16(sess->tsid);
3668 fw_ddb_entry->port = cpu_to_le16(conn->port);
3669 fw_ddb_entry->def_timeout =
3670 cpu_to_le16(sess->default_taskmgmt_timeout);
3671
3672 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4))
3673 fw_ddb_entry->ipv4_tos = conn->ipv6_traffic_class;
3674 else
3675 fw_ddb_entry->ipv4_tos = conn->ipv4_tos;
3676
3677 if (conn->ipaddress)
3678 memcpy(fw_ddb_entry->ip_addr, conn->ipaddress,
3679 sizeof(fw_ddb_entry->ip_addr));
3680
3681 if (conn->redirect_ipaddr)
3682 memcpy(fw_ddb_entry->tgt_addr, conn->redirect_ipaddr,
3683 sizeof(fw_ddb_entry->tgt_addr));
3684
3685 if (conn->link_local_ipv6_addr)
3686 memcpy(fw_ddb_entry->link_local_ipv6_addr,
3687 conn->link_local_ipv6_addr,
3688 sizeof(fw_ddb_entry->link_local_ipv6_addr));
3689
3690 if (sess->targetname)
3691 memcpy(fw_ddb_entry->iscsi_name, sess->targetname,
3692 sizeof(fw_ddb_entry->iscsi_name));
3693
3694 if (sess->targetalias)
3695 memcpy(fw_ddb_entry->iscsi_alias, sess->targetalias,
3696 sizeof(fw_ddb_entry->iscsi_alias));
3697
3698 COPY_ISID(fw_ddb_entry->isid, sess->isid);
3699
3700 return rc;
3701 }
3702
3703 static void qla4xxx_copy_to_sess_conn_params(struct iscsi_conn *conn,
3704 struct iscsi_session *sess,
3705 struct dev_db_entry *fw_ddb_entry)
3706 {
3707 unsigned long options = 0;
3708 uint16_t ddb_link;
3709 uint16_t disc_parent;
3710 char ip_addr[DDB_IPADDR_LEN];
3711
3712 options = le16_to_cpu(fw_ddb_entry->options);
3713 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options);
3714 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE,
3715 &options);
3716 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options);
3717
3718 options = le16_to_cpu(fw_ddb_entry->iscsi_options);
3719 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options);
3720 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options);
3721 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options);
3722 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options);
3723 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER,
3724 &options);
3725 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options);
3726 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options);
3727 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN,
3728 &options);
3729 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options);
3730 sess->discovery_auth_optional =
3731 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options);
3732 if (test_bit(ISCSIOPT_ERL1, &options))
3733 sess->erl |= BIT_1;
3734 if (test_bit(ISCSIOPT_ERL0, &options))
3735 sess->erl |= BIT_0;
3736
3737 options = le16_to_cpu(fw_ddb_entry->tcp_options);
3738 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options);
3739 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options);
3740 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options);
3741 if (test_bit(TCPOPT_TIMER_SCALE3, &options))
3742 conn->tcp_timer_scale |= BIT_3;
3743 if (test_bit(TCPOPT_TIMER_SCALE2, &options))
3744 conn->tcp_timer_scale |= BIT_2;
3745 if (test_bit(TCPOPT_TIMER_SCALE1, &options))
3746 conn->tcp_timer_scale |= BIT_1;
3747
3748 conn->tcp_timer_scale >>= 1;
3749 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options);
3750
3751 options = le16_to_cpu(fw_ddb_entry->ip_options);
3752 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options);
3753
3754 conn->max_recv_dlength = BYTE_UNITS *
3755 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len);
3756 conn->max_xmit_dlength = BYTE_UNITS *
3757 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len);
3758 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t);
3759 sess->first_burst = BYTE_UNITS *
3760 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len);
3761 sess->max_burst = BYTE_UNITS *
3762 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len);
3763 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
3764 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain);
3765 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
3766 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss);
3767 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf;
3768 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf;
3769 conn->ipv4_tos = fw_ddb_entry->ipv4_tos;
3770 conn->keepalive_tmo = le16_to_cpu(fw_ddb_entry->ka_timeout);
3771 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port);
3772 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn);
3773 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn);
3774 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid);
3775 COPY_ISID(sess->isid, fw_ddb_entry->isid);
3776
3777 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
3778 if (ddb_link == DDB_ISNS)
3779 disc_parent = ISCSI_DISC_PARENT_ISNS;
3780 else if (ddb_link == DDB_NO_LINK)
3781 disc_parent = ISCSI_DISC_PARENT_UNKNOWN;
3782 else if (ddb_link < MAX_DDB_ENTRIES)
3783 disc_parent = ISCSI_DISC_PARENT_SENDTGT;
3784 else
3785 disc_parent = ISCSI_DISC_PARENT_UNKNOWN;
3786
3787 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_DISCOVERY_PARENT_TYPE,
3788 iscsi_get_discovery_parent_name(disc_parent), 0);
3789
3790 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_TARGET_ALIAS,
3791 (char *)fw_ddb_entry->iscsi_alias, 0);
3792
3793 options = le16_to_cpu(fw_ddb_entry->options);
3794 if (options & DDB_OPT_IPV6_DEVICE) {
3795 memset(ip_addr, 0, sizeof(ip_addr));
3796 sprintf(ip_addr, "%pI6", fw_ddb_entry->link_local_ipv6_addr);
3797 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_LOCAL_IPADDR,
3798 (char *)ip_addr, 0);
3799 }
3800 }
3801
3802 static void qla4xxx_copy_fwddb_param(struct scsi_qla_host *ha,
3803 struct dev_db_entry *fw_ddb_entry,
3804 struct iscsi_cls_session *cls_sess,
3805 struct iscsi_cls_conn *cls_conn)
3806 {
3807 int buflen = 0;
3808 struct iscsi_session *sess;
3809 struct ddb_entry *ddb_entry;
3810 struct ql4_chap_table chap_tbl;
3811 struct iscsi_conn *conn;
3812 char ip_addr[DDB_IPADDR_LEN];
3813 uint16_t options = 0;
3814
3815 sess = cls_sess->dd_data;
3816 ddb_entry = sess->dd_data;
3817 conn = cls_conn->dd_data;
3818 memset(&chap_tbl, 0, sizeof(chap_tbl));
3819
3820 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
3821
3822 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry);
3823
3824 sess->def_taskmgmt_tmo = le16_to_cpu(fw_ddb_entry->def_timeout);
3825 conn->persistent_port = le16_to_cpu(fw_ddb_entry->port);
3826
3827 memset(ip_addr, 0, sizeof(ip_addr));
3828 options = le16_to_cpu(fw_ddb_entry->options);
3829 if (options & DDB_OPT_IPV6_DEVICE) {
3830 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv6", 4);
3831
3832 memset(ip_addr, 0, sizeof(ip_addr));
3833 sprintf(ip_addr, "%pI6", fw_ddb_entry->ip_addr);
3834 } else {
3835 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv4", 4);
3836 sprintf(ip_addr, "%pI4", fw_ddb_entry->ip_addr);
3837 }
3838
3839 iscsi_set_param(cls_conn, ISCSI_PARAM_PERSISTENT_ADDRESS,
3840 (char *)ip_addr, buflen);
3841 iscsi_set_param(cls_conn, ISCSI_PARAM_TARGET_NAME,
3842 (char *)fw_ddb_entry->iscsi_name, buflen);
3843 iscsi_set_param(cls_conn, ISCSI_PARAM_INITIATOR_NAME,
3844 (char *)ha->name_string, buflen);
3845
3846 if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) {
3847 if (!qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name,
3848 chap_tbl.secret,
3849 ddb_entry->chap_tbl_idx)) {
3850 iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME,
3851 (char *)chap_tbl.name,
3852 strlen((char *)chap_tbl.name));
3853 iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD,
3854 (char *)chap_tbl.secret,
3855 chap_tbl.secret_len);
3856 }
3857 }
3858 }
3859
3860 void qla4xxx_update_session_conn_fwddb_param(struct scsi_qla_host *ha,
3861 struct ddb_entry *ddb_entry)
3862 {
3863 struct iscsi_cls_session *cls_sess;
3864 struct iscsi_cls_conn *cls_conn;
3865 uint32_t ddb_state;
3866 dma_addr_t fw_ddb_entry_dma;
3867 struct dev_db_entry *fw_ddb_entry;
3868
3869 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3870 &fw_ddb_entry_dma, GFP_KERNEL);
3871 if (!fw_ddb_entry) {
3872 ql4_printk(KERN_ERR, ha,
3873 "%s: Unable to allocate dma buffer\n", __func__);
3874 goto exit_session_conn_fwddb_param;
3875 }
3876
3877 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry,
3878 fw_ddb_entry_dma, NULL, NULL, &ddb_state,
3879 NULL, NULL, NULL) == QLA_ERROR) {
3880 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
3881 "get_ddb_entry for fw_ddb_index %d\n",
3882 ha->host_no, __func__,
3883 ddb_entry->fw_ddb_index));
3884 goto exit_session_conn_fwddb_param;
3885 }
3886
3887 cls_sess = ddb_entry->sess;
3888
3889 cls_conn = ddb_entry->conn;
3890
3891 /* Update params */
3892 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn);
3893
3894 exit_session_conn_fwddb_param:
3895 if (fw_ddb_entry)
3896 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3897 fw_ddb_entry, fw_ddb_entry_dma);
3898 }
3899
3900 void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha,
3901 struct ddb_entry *ddb_entry)
3902 {
3903 struct iscsi_cls_session *cls_sess;
3904 struct iscsi_cls_conn *cls_conn;
3905 struct iscsi_session *sess;
3906 struct iscsi_conn *conn;
3907 uint32_t ddb_state;
3908 dma_addr_t fw_ddb_entry_dma;
3909 struct dev_db_entry *fw_ddb_entry;
3910
3911 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3912 &fw_ddb_entry_dma, GFP_KERNEL);
3913 if (!fw_ddb_entry) {
3914 ql4_printk(KERN_ERR, ha,
3915 "%s: Unable to allocate dma buffer\n", __func__);
3916 goto exit_session_conn_param;
3917 }
3918
3919 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry,
3920 fw_ddb_entry_dma, NULL, NULL, &ddb_state,
3921 NULL, NULL, NULL) == QLA_ERROR) {
3922 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
3923 "get_ddb_entry for fw_ddb_index %d\n",
3924 ha->host_no, __func__,
3925 ddb_entry->fw_ddb_index));
3926 goto exit_session_conn_param;
3927 }
3928
3929 cls_sess = ddb_entry->sess;
3930 sess = cls_sess->dd_data;
3931
3932 cls_conn = ddb_entry->conn;
3933 conn = cls_conn->dd_data;
3934
3935 /* Update timers after login */
3936 ddb_entry->default_relogin_timeout =
3937 (le16_to_cpu(fw_ddb_entry->def_timeout) > LOGIN_TOV) &&
3938 (le16_to_cpu(fw_ddb_entry->def_timeout) < LOGIN_TOV * 10) ?
3939 le16_to_cpu(fw_ddb_entry->def_timeout) : LOGIN_TOV;
3940 ddb_entry->default_time2wait =
3941 le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
3942
3943 /* Update params */
3944 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
3945 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry);
3946
3947 memcpy(sess->initiatorname, ha->name_string,
3948 min(sizeof(ha->name_string), sizeof(sess->initiatorname)));
3949
3950 exit_session_conn_param:
3951 if (fw_ddb_entry)
3952 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3953 fw_ddb_entry, fw_ddb_entry_dma);
3954 }
3955
3956 /*
3957 * Timer routines
3958 */
3959
3960 static void qla4xxx_start_timer(struct scsi_qla_host *ha, void *func,
3961 unsigned long interval)
3962 {
3963 DEBUG(printk("scsi: %s: Starting timer thread for adapter %d\n",
3964 __func__, ha->host->host_no));
3965 init_timer(&ha->timer);
3966 ha->timer.expires = jiffies + interval * HZ;
3967 ha->timer.data = (unsigned long)ha;
3968 ha->timer.function = (void (*)(unsigned long))func;
3969 add_timer(&ha->timer);
3970 ha->timer_active = 1;
3971 }
3972
3973 static void qla4xxx_stop_timer(struct scsi_qla_host *ha)
3974 {
3975 del_timer_sync(&ha->timer);
3976 ha->timer_active = 0;
3977 }
3978
3979 /***
3980 * qla4xxx_mark_device_missing - blocks the session
3981 * @cls_session: Pointer to the session to be blocked
3982 * @ddb_entry: Pointer to device database entry
3983 *
3984 * This routine marks a device missing and close connection.
3985 **/
3986 void qla4xxx_mark_device_missing(struct iscsi_cls_session *cls_session)
3987 {
3988 iscsi_block_session(cls_session);
3989 }
3990
3991 /**
3992 * qla4xxx_mark_all_devices_missing - mark all devices as missing.
3993 * @ha: Pointer to host adapter structure.
3994 *
3995 * This routine marks a device missing and resets the relogin retry count.
3996 **/
3997 void qla4xxx_mark_all_devices_missing(struct scsi_qla_host *ha)
3998 {
3999 iscsi_host_for_each_session(ha->host, qla4xxx_mark_device_missing);
4000 }
4001
4002 static struct srb* qla4xxx_get_new_srb(struct scsi_qla_host *ha,
4003 struct ddb_entry *ddb_entry,
4004 struct scsi_cmnd *cmd)
4005 {
4006 struct srb *srb;
4007
4008 srb = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
4009 if (!srb)
4010 return srb;
4011
4012 kref_init(&srb->srb_ref);
4013 srb->ha = ha;
4014 srb->ddb = ddb_entry;
4015 srb->cmd = cmd;
4016 srb->flags = 0;
4017 CMD_SP(cmd) = (void *)srb;
4018
4019 return srb;
4020 }
4021
4022 static void qla4xxx_srb_free_dma(struct scsi_qla_host *ha, struct srb *srb)
4023 {
4024 struct scsi_cmnd *cmd = srb->cmd;
4025
4026 if (srb->flags & SRB_DMA_VALID) {
4027 scsi_dma_unmap(cmd);
4028 srb->flags &= ~SRB_DMA_VALID;
4029 }
4030 CMD_SP(cmd) = NULL;
4031 }
4032
4033 void qla4xxx_srb_compl(struct kref *ref)
4034 {
4035 struct srb *srb = container_of(ref, struct srb, srb_ref);
4036 struct scsi_cmnd *cmd = srb->cmd;
4037 struct scsi_qla_host *ha = srb->ha;
4038
4039 qla4xxx_srb_free_dma(ha, srb);
4040
4041 mempool_free(srb, ha->srb_mempool);
4042
4043 cmd->scsi_done(cmd);
4044 }
4045
4046 /**
4047 * qla4xxx_queuecommand - scsi layer issues scsi command to driver.
4048 * @host: scsi host
4049 * @cmd: Pointer to Linux's SCSI command structure
4050 *
4051 * Remarks:
4052 * This routine is invoked by Linux to send a SCSI command to the driver.
4053 * The mid-level driver tries to ensure that queuecommand never gets
4054 * invoked concurrently with itself or the interrupt handler (although
4055 * the interrupt handler may call this routine as part of request-
4056 * completion handling). Unfortunely, it sometimes calls the scheduler
4057 * in interrupt context which is a big NO! NO!.
4058 **/
4059 static int qla4xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
4060 {
4061 struct scsi_qla_host *ha = to_qla_host(host);
4062 struct ddb_entry *ddb_entry = cmd->device->hostdata;
4063 struct iscsi_cls_session *sess = ddb_entry->sess;
4064 struct srb *srb;
4065 int rval;
4066
4067 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
4068 if (test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags))
4069 cmd->result = DID_NO_CONNECT << 16;
4070 else
4071 cmd->result = DID_REQUEUE << 16;
4072 goto qc_fail_command;
4073 }
4074
4075 if (!sess) {
4076 cmd->result = DID_IMM_RETRY << 16;
4077 goto qc_fail_command;
4078 }
4079
4080 rval = iscsi_session_chkready(sess);
4081 if (rval) {
4082 cmd->result = rval;
4083 goto qc_fail_command;
4084 }
4085
4086 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
4087 test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) ||
4088 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
4089 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) ||
4090 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) ||
4091 !test_bit(AF_ONLINE, &ha->flags) ||
4092 !test_bit(AF_LINK_UP, &ha->flags) ||
4093 test_bit(AF_LOOPBACK, &ha->flags) ||
4094 test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags) ||
4095 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags) ||
4096 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))
4097 goto qc_host_busy;
4098
4099 srb = qla4xxx_get_new_srb(ha, ddb_entry, cmd);
4100 if (!srb)
4101 goto qc_host_busy;
4102
4103 rval = qla4xxx_send_command_to_isp(ha, srb);
4104 if (rval != QLA_SUCCESS)
4105 goto qc_host_busy_free_sp;
4106
4107 return 0;
4108
4109 qc_host_busy_free_sp:
4110 qla4xxx_srb_free_dma(ha, srb);
4111 mempool_free(srb, ha->srb_mempool);
4112
4113 qc_host_busy:
4114 return SCSI_MLQUEUE_HOST_BUSY;
4115
4116 qc_fail_command:
4117 cmd->scsi_done(cmd);
4118
4119 return 0;
4120 }
4121
4122 /**
4123 * qla4xxx_mem_free - frees memory allocated to adapter
4124 * @ha: Pointer to host adapter structure.
4125 *
4126 * Frees memory previously allocated by qla4xxx_mem_alloc
4127 **/
4128 static void qla4xxx_mem_free(struct scsi_qla_host *ha)
4129 {
4130 if (ha->queues)
4131 dma_free_coherent(&ha->pdev->dev, ha->queues_len, ha->queues,
4132 ha->queues_dma);
4133
4134 if (ha->fw_dump)
4135 vfree(ha->fw_dump);
4136
4137 ha->queues_len = 0;
4138 ha->queues = NULL;
4139 ha->queues_dma = 0;
4140 ha->request_ring = NULL;
4141 ha->request_dma = 0;
4142 ha->response_ring = NULL;
4143 ha->response_dma = 0;
4144 ha->shadow_regs = NULL;
4145 ha->shadow_regs_dma = 0;
4146 ha->fw_dump = NULL;
4147 ha->fw_dump_size = 0;
4148
4149 /* Free srb pool. */
4150 if (ha->srb_mempool)
4151 mempool_destroy(ha->srb_mempool);
4152
4153 ha->srb_mempool = NULL;
4154
4155 if (ha->chap_dma_pool)
4156 dma_pool_destroy(ha->chap_dma_pool);
4157
4158 if (ha->chap_list)
4159 vfree(ha->chap_list);
4160 ha->chap_list = NULL;
4161
4162 if (ha->fw_ddb_dma_pool)
4163 dma_pool_destroy(ha->fw_ddb_dma_pool);
4164
4165 /* release io space registers */
4166 if (is_qla8022(ha)) {
4167 if (ha->nx_pcibase)
4168 iounmap(
4169 (struct device_reg_82xx __iomem *)ha->nx_pcibase);
4170 } else if (is_qla8032(ha) || is_qla8042(ha)) {
4171 if (ha->nx_pcibase)
4172 iounmap(
4173 (struct device_reg_83xx __iomem *)ha->nx_pcibase);
4174 } else if (ha->reg) {
4175 iounmap(ha->reg);
4176 }
4177
4178 if (ha->reset_tmplt.buff)
4179 vfree(ha->reset_tmplt.buff);
4180
4181 pci_release_regions(ha->pdev);
4182 }
4183
4184 /**
4185 * qla4xxx_mem_alloc - allocates memory for use by adapter.
4186 * @ha: Pointer to host adapter structure
4187 *
4188 * Allocates DMA memory for request and response queues. Also allocates memory
4189 * for srbs.
4190 **/
4191 static int qla4xxx_mem_alloc(struct scsi_qla_host *ha)
4192 {
4193 unsigned long align;
4194
4195 /* Allocate contiguous block of DMA memory for queues. */
4196 ha->queues_len = ((REQUEST_QUEUE_DEPTH * QUEUE_SIZE) +
4197 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE) +
4198 sizeof(struct shadow_regs) +
4199 MEM_ALIGN_VALUE +
4200 (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
4201 ha->queues = dma_alloc_coherent(&ha->pdev->dev, ha->queues_len,
4202 &ha->queues_dma, GFP_KERNEL);
4203 if (ha->queues == NULL) {
4204 ql4_printk(KERN_WARNING, ha,
4205 "Memory Allocation failed - queues.\n");
4206
4207 goto mem_alloc_error_exit;
4208 }
4209 memset(ha->queues, 0, ha->queues_len);
4210
4211 /*
4212 * As per RISC alignment requirements -- the bus-address must be a
4213 * multiple of the request-ring size (in bytes).
4214 */
4215 align = 0;
4216 if ((unsigned long)ha->queues_dma & (MEM_ALIGN_VALUE - 1))
4217 align = MEM_ALIGN_VALUE - ((unsigned long)ha->queues_dma &
4218 (MEM_ALIGN_VALUE - 1));
4219
4220 /* Update request and response queue pointers. */
4221 ha->request_dma = ha->queues_dma + align;
4222 ha->request_ring = (struct queue_entry *) (ha->queues + align);
4223 ha->response_dma = ha->queues_dma + align +
4224 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE);
4225 ha->response_ring = (struct queue_entry *) (ha->queues + align +
4226 (REQUEST_QUEUE_DEPTH *
4227 QUEUE_SIZE));
4228 ha->shadow_regs_dma = ha->queues_dma + align +
4229 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE) +
4230 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE);
4231 ha->shadow_regs = (struct shadow_regs *) (ha->queues + align +
4232 (REQUEST_QUEUE_DEPTH *
4233 QUEUE_SIZE) +
4234 (RESPONSE_QUEUE_DEPTH *
4235 QUEUE_SIZE));
4236
4237 /* Allocate memory for srb pool. */
4238 ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab,
4239 mempool_free_slab, srb_cachep);
4240 if (ha->srb_mempool == NULL) {
4241 ql4_printk(KERN_WARNING, ha,
4242 "Memory Allocation failed - SRB Pool.\n");
4243
4244 goto mem_alloc_error_exit;
4245 }
4246
4247 ha->chap_dma_pool = dma_pool_create("ql4_chap", &ha->pdev->dev,
4248 CHAP_DMA_BLOCK_SIZE, 8, 0);
4249
4250 if (ha->chap_dma_pool == NULL) {
4251 ql4_printk(KERN_WARNING, ha,
4252 "%s: chap_dma_pool allocation failed..\n", __func__);
4253 goto mem_alloc_error_exit;
4254 }
4255
4256 ha->fw_ddb_dma_pool = dma_pool_create("ql4_fw_ddb", &ha->pdev->dev,
4257 DDB_DMA_BLOCK_SIZE, 8, 0);
4258
4259 if (ha->fw_ddb_dma_pool == NULL) {
4260 ql4_printk(KERN_WARNING, ha,
4261 "%s: fw_ddb_dma_pool allocation failed..\n",
4262 __func__);
4263 goto mem_alloc_error_exit;
4264 }
4265
4266 return QLA_SUCCESS;
4267
4268 mem_alloc_error_exit:
4269 qla4xxx_mem_free(ha);
4270 return QLA_ERROR;
4271 }
4272
4273 /**
4274 * qla4_8xxx_check_temp - Check the ISP82XX temperature.
4275 * @ha: adapter block pointer.
4276 *
4277 * Note: The caller should not hold the idc lock.
4278 **/
4279 static int qla4_8xxx_check_temp(struct scsi_qla_host *ha)
4280 {
4281 uint32_t temp, temp_state, temp_val;
4282 int status = QLA_SUCCESS;
4283
4284 temp = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_TEMP_STATE);
4285
4286 temp_state = qla82xx_get_temp_state(temp);
4287 temp_val = qla82xx_get_temp_val(temp);
4288
4289 if (temp_state == QLA82XX_TEMP_PANIC) {
4290 ql4_printk(KERN_WARNING, ha, "Device temperature %d degrees C"
4291 " exceeds maximum allowed. Hardware has been shut"
4292 " down.\n", temp_val);
4293 status = QLA_ERROR;
4294 } else if (temp_state == QLA82XX_TEMP_WARN) {
4295 if (ha->temperature == QLA82XX_TEMP_NORMAL)
4296 ql4_printk(KERN_WARNING, ha, "Device temperature %d"
4297 " degrees C exceeds operating range."
4298 " Immediate action needed.\n", temp_val);
4299 } else {
4300 if (ha->temperature == QLA82XX_TEMP_WARN)
4301 ql4_printk(KERN_INFO, ha, "Device temperature is"
4302 " now %d degrees C in normal range.\n",
4303 temp_val);
4304 }
4305 ha->temperature = temp_state;
4306 return status;
4307 }
4308
4309 /**
4310 * qla4_8xxx_check_fw_alive - Check firmware health
4311 * @ha: Pointer to host adapter structure.
4312 *
4313 * Context: Interrupt
4314 **/
4315 static int qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha)
4316 {
4317 uint32_t fw_heartbeat_counter;
4318 int status = QLA_SUCCESS;
4319
4320 fw_heartbeat_counter = qla4_8xxx_rd_direct(ha,
4321 QLA8XXX_PEG_ALIVE_COUNTER);
4322 /* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */
4323 if (fw_heartbeat_counter == 0xffffffff) {
4324 DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Device in frozen "
4325 "state, QLA82XX_PEG_ALIVE_COUNTER is 0xffffffff\n",
4326 ha->host_no, __func__));
4327 return status;
4328 }
4329
4330 if (ha->fw_heartbeat_counter == fw_heartbeat_counter) {
4331 ha->seconds_since_last_heartbeat++;
4332 /* FW not alive after 2 seconds */
4333 if (ha->seconds_since_last_heartbeat == 2) {
4334 ha->seconds_since_last_heartbeat = 0;
4335 qla4_8xxx_dump_peg_reg(ha);
4336 status = QLA_ERROR;
4337 }
4338 } else
4339 ha->seconds_since_last_heartbeat = 0;
4340
4341 ha->fw_heartbeat_counter = fw_heartbeat_counter;
4342 return status;
4343 }
4344
4345 static void qla4_8xxx_process_fw_error(struct scsi_qla_host *ha)
4346 {
4347 uint32_t halt_status;
4348 int halt_status_unrecoverable = 0;
4349
4350 halt_status = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_HALT_STATUS1);
4351
4352 if (is_qla8022(ha)) {
4353 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
4354 __func__);
4355 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
4356 CRB_NIU_XG_PAUSE_CTL_P0 |
4357 CRB_NIU_XG_PAUSE_CTL_P1);
4358
4359 if (QLA82XX_FWERROR_CODE(halt_status) == 0x67)
4360 ql4_printk(KERN_ERR, ha, "%s: Firmware aborted with error code 0x00006700. Device is being reset\n",
4361 __func__);
4362 if (halt_status & HALT_STATUS_UNRECOVERABLE)
4363 halt_status_unrecoverable = 1;
4364 } else if (is_qla8032(ha) || is_qla8042(ha)) {
4365 if (halt_status & QLA83XX_HALT_STATUS_FW_RESET)
4366 ql4_printk(KERN_ERR, ha, "%s: Firmware error detected device is being reset\n",
4367 __func__);
4368 else if (halt_status & QLA83XX_HALT_STATUS_UNRECOVERABLE)
4369 halt_status_unrecoverable = 1;
4370 }
4371
4372 /*
4373 * Since we cannot change dev_state in interrupt context,
4374 * set appropriate DPC flag then wakeup DPC
4375 */
4376 if (halt_status_unrecoverable) {
4377 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags);
4378 } else {
4379 ql4_printk(KERN_INFO, ha, "%s: detect abort needed!\n",
4380 __func__);
4381 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4382 }
4383 qla4xxx_mailbox_premature_completion(ha);
4384 qla4xxx_wake_dpc(ha);
4385 }
4386
4387 /**
4388 * qla4_8xxx_watchdog - Poll dev state
4389 * @ha: Pointer to host adapter structure.
4390 *
4391 * Context: Interrupt
4392 **/
4393 void qla4_8xxx_watchdog(struct scsi_qla_host *ha)
4394 {
4395 uint32_t dev_state;
4396 uint32_t idc_ctrl;
4397
4398 if (is_qla8032(ha) &&
4399 (qla4_83xx_is_detached(ha) == QLA_SUCCESS))
4400 WARN_ONCE(1, "%s: iSCSI function %d marked invisible\n",
4401 __func__, ha->func_num);
4402
4403 /* don't poll if reset is going on */
4404 if (!(test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) ||
4405 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
4406 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags))) {
4407 dev_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE);
4408
4409 if (qla4_8xxx_check_temp(ha)) {
4410 if (is_qla8022(ha)) {
4411 ql4_printk(KERN_INFO, ha, "disabling pause transmit on port 0 & 1.\n");
4412 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
4413 CRB_NIU_XG_PAUSE_CTL_P0 |
4414 CRB_NIU_XG_PAUSE_CTL_P1);
4415 }
4416 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags);
4417 qla4xxx_wake_dpc(ha);
4418 } else if (dev_state == QLA8XXX_DEV_NEED_RESET &&
4419 !test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
4420
4421 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED RESET!\n",
4422 __func__);
4423
4424 if (is_qla8032(ha) || is_qla8042(ha)) {
4425 idc_ctrl = qla4_83xx_rd_reg(ha,
4426 QLA83XX_IDC_DRV_CTRL);
4427 if (!(idc_ctrl & GRACEFUL_RESET_BIT1)) {
4428 ql4_printk(KERN_INFO, ha, "%s: Graceful reset bit is not set\n",
4429 __func__);
4430 qla4xxx_mailbox_premature_completion(
4431 ha);
4432 }
4433 }
4434
4435 if ((is_qla8032(ha) || is_qla8042(ha)) ||
4436 (is_qla8022(ha) && !ql4xdontresethba)) {
4437 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4438 qla4xxx_wake_dpc(ha);
4439 }
4440 } else if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT &&
4441 !test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) {
4442 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED QUIES!\n",
4443 __func__);
4444 set_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags);
4445 qla4xxx_wake_dpc(ha);
4446 } else {
4447 /* Check firmware health */
4448 if (qla4_8xxx_check_fw_alive(ha))
4449 qla4_8xxx_process_fw_error(ha);
4450 }
4451 }
4452 }
4453
4454 static void qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)
4455 {
4456 struct iscsi_session *sess;
4457 struct ddb_entry *ddb_entry;
4458 struct scsi_qla_host *ha;
4459
4460 sess = cls_sess->dd_data;
4461 ddb_entry = sess->dd_data;
4462 ha = ddb_entry->ha;
4463
4464 if (!(ddb_entry->ddb_type == FLASH_DDB))
4465 return;
4466
4467 if (adapter_up(ha) && !test_bit(DF_RELOGIN, &ddb_entry->flags) &&
4468 !iscsi_is_session_online(cls_sess)) {
4469 if (atomic_read(&ddb_entry->retry_relogin_timer) !=
4470 INVALID_ENTRY) {
4471 if (atomic_read(&ddb_entry->retry_relogin_timer) ==
4472 0) {
4473 atomic_set(&ddb_entry->retry_relogin_timer,
4474 INVALID_ENTRY);
4475 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
4476 set_bit(DF_RELOGIN, &ddb_entry->flags);
4477 DEBUG2(ql4_printk(KERN_INFO, ha,
4478 "%s: index [%d] login device\n",
4479 __func__, ddb_entry->fw_ddb_index));
4480 } else
4481 atomic_dec(&ddb_entry->retry_relogin_timer);
4482 }
4483 }
4484
4485 /* Wait for relogin to timeout */
4486 if (atomic_read(&ddb_entry->relogin_timer) &&
4487 (atomic_dec_and_test(&ddb_entry->relogin_timer) != 0)) {
4488 /*
4489 * If the relogin times out and the device is
4490 * still NOT ONLINE then try and relogin again.
4491 */
4492 if (!iscsi_is_session_online(cls_sess)) {
4493 /* Reset retry relogin timer */
4494 atomic_inc(&ddb_entry->relogin_retry_count);
4495 DEBUG2(ql4_printk(KERN_INFO, ha,
4496 "%s: index[%d] relogin timed out-retrying"
4497 " relogin (%d), retry (%d)\n", __func__,
4498 ddb_entry->fw_ddb_index,
4499 atomic_read(&ddb_entry->relogin_retry_count),
4500 ddb_entry->default_time2wait + 4));
4501 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
4502 atomic_set(&ddb_entry->retry_relogin_timer,
4503 ddb_entry->default_time2wait + 4);
4504 }
4505 }
4506 }
4507
4508 /**
4509 * qla4xxx_timer - checks every second for work to do.
4510 * @ha: Pointer to host adapter structure.
4511 **/
4512 static void qla4xxx_timer(struct scsi_qla_host *ha)
4513 {
4514 int start_dpc = 0;
4515 uint16_t w;
4516
4517 iscsi_host_for_each_session(ha->host, qla4xxx_check_relogin_flash_ddb);
4518
4519 /* If we are in the middle of AER/EEH processing
4520 * skip any processing and reschedule the timer
4521 */
4522 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
4523 mod_timer(&ha->timer, jiffies + HZ);
4524 return;
4525 }
4526
4527 /* Hardware read to trigger an EEH error during mailbox waits. */
4528 if (!pci_channel_offline(ha->pdev))
4529 pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
4530
4531 if (is_qla80XX(ha))
4532 qla4_8xxx_watchdog(ha);
4533
4534 if (is_qla40XX(ha)) {
4535 /* Check for heartbeat interval. */
4536 if (ha->firmware_options & FWOPT_HEARTBEAT_ENABLE &&
4537 ha->heartbeat_interval != 0) {
4538 ha->seconds_since_last_heartbeat++;
4539 if (ha->seconds_since_last_heartbeat >
4540 ha->heartbeat_interval + 2)
4541 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4542 }
4543 }
4544
4545 /* Process any deferred work. */
4546 if (!list_empty(&ha->work_list))
4547 start_dpc++;
4548
4549 /* Wakeup the dpc routine for this adapter, if needed. */
4550 if (start_dpc ||
4551 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
4552 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags) ||
4553 test_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags) ||
4554 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) ||
4555 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
4556 test_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags) ||
4557 test_bit(DPC_LINK_CHANGED, &ha->dpc_flags) ||
4558 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) ||
4559 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) ||
4560 test_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags) ||
4561 test_bit(DPC_AEN, &ha->dpc_flags)) {
4562 DEBUG2(printk("scsi%ld: %s: scheduling dpc routine"
4563 " - dpc flags = 0x%lx\n",
4564 ha->host_no, __func__, ha->dpc_flags));
4565 qla4xxx_wake_dpc(ha);
4566 }
4567
4568 /* Reschedule timer thread to call us back in one second */
4569 mod_timer(&ha->timer, jiffies + HZ);
4570
4571 DEBUG2(ha->seconds_since_last_intr++);
4572 }
4573
4574 /**
4575 * qla4xxx_cmd_wait - waits for all outstanding commands to complete
4576 * @ha: Pointer to host adapter structure.
4577 *
4578 * This routine stalls the driver until all outstanding commands are returned.
4579 * Caller must release the Hardware Lock prior to calling this routine.
4580 **/
4581 static int qla4xxx_cmd_wait(struct scsi_qla_host *ha)
4582 {
4583 uint32_t index = 0;
4584 unsigned long flags;
4585 struct scsi_cmnd *cmd;
4586 unsigned long wtime;
4587 uint32_t wtmo;
4588
4589 if (is_qla40XX(ha))
4590 wtmo = WAIT_CMD_TOV;
4591 else
4592 wtmo = ha->nx_reset_timeout / 2;
4593
4594 wtime = jiffies + (wtmo * HZ);
4595
4596 DEBUG2(ql4_printk(KERN_INFO, ha,
4597 "Wait up to %u seconds for cmds to complete\n",
4598 wtmo));
4599
4600 while (!time_after_eq(jiffies, wtime)) {
4601 spin_lock_irqsave(&ha->hardware_lock, flags);
4602 /* Find a command that hasn't completed. */
4603 for (index = 0; index < ha->host->can_queue; index++) {
4604 cmd = scsi_host_find_tag(ha->host, index);
4605 /*
4606 * We cannot just check if the index is valid,
4607 * becase if we are run from the scsi eh, then
4608 * the scsi/block layer is going to prevent
4609 * the tag from being released.
4610 */
4611 if (cmd != NULL && CMD_SP(cmd))
4612 break;
4613 }
4614 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4615
4616 /* If No Commands are pending, wait is complete */
4617 if (index == ha->host->can_queue)
4618 return QLA_SUCCESS;
4619
4620 msleep(1000);
4621 }
4622 /* If we timed out on waiting for commands to come back
4623 * return ERROR. */
4624 return QLA_ERROR;
4625 }
4626
4627 int qla4xxx_hw_reset(struct scsi_qla_host *ha)
4628 {
4629 uint32_t ctrl_status;
4630 unsigned long flags = 0;
4631
4632 DEBUG2(printk(KERN_ERR "scsi%ld: %s\n", ha->host_no, __func__));
4633
4634 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS)
4635 return QLA_ERROR;
4636
4637 spin_lock_irqsave(&ha->hardware_lock, flags);
4638
4639 /*
4640 * If the SCSI Reset Interrupt bit is set, clear it.
4641 * Otherwise, the Soft Reset won't work.
4642 */
4643 ctrl_status = readw(&ha->reg->ctrl_status);
4644 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0)
4645 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status);
4646
4647 /* Issue Soft Reset */
4648 writel(set_rmask(CSR_SOFT_RESET), &ha->reg->ctrl_status);
4649 readl(&ha->reg->ctrl_status);
4650
4651 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4652 return QLA_SUCCESS;
4653 }
4654
4655 /**
4656 * qla4xxx_soft_reset - performs soft reset.
4657 * @ha: Pointer to host adapter structure.
4658 **/
4659 int qla4xxx_soft_reset(struct scsi_qla_host *ha)
4660 {
4661 uint32_t max_wait_time;
4662 unsigned long flags = 0;
4663 int status;
4664 uint32_t ctrl_status;
4665
4666 status = qla4xxx_hw_reset(ha);
4667 if (status != QLA_SUCCESS)
4668 return status;
4669
4670 status = QLA_ERROR;
4671 /* Wait until the Network Reset Intr bit is cleared */
4672 max_wait_time = RESET_INTR_TOV;
4673 do {
4674 spin_lock_irqsave(&ha->hardware_lock, flags);
4675 ctrl_status = readw(&ha->reg->ctrl_status);
4676 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4677
4678 if ((ctrl_status & CSR_NET_RESET_INTR) == 0)
4679 break;
4680
4681 msleep(1000);
4682 } while ((--max_wait_time));
4683
4684 if ((ctrl_status & CSR_NET_RESET_INTR) != 0) {
4685 DEBUG2(printk(KERN_WARNING
4686 "scsi%ld: Network Reset Intr not cleared by "
4687 "Network function, clearing it now!\n",
4688 ha->host_no));
4689 spin_lock_irqsave(&ha->hardware_lock, flags);
4690 writel(set_rmask(CSR_NET_RESET_INTR), &ha->reg->ctrl_status);
4691 readl(&ha->reg->ctrl_status);
4692 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4693 }
4694
4695 /* Wait until the firmware tells us the Soft Reset is done */
4696 max_wait_time = SOFT_RESET_TOV;
4697 do {
4698 spin_lock_irqsave(&ha->hardware_lock, flags);
4699 ctrl_status = readw(&ha->reg->ctrl_status);
4700 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4701
4702 if ((ctrl_status & CSR_SOFT_RESET) == 0) {
4703 status = QLA_SUCCESS;
4704 break;
4705 }
4706
4707 msleep(1000);
4708 } while ((--max_wait_time));
4709
4710 /*
4711 * Also, make sure that the SCSI Reset Interrupt bit has been cleared
4712 * after the soft reset has taken place.
4713 */
4714 spin_lock_irqsave(&ha->hardware_lock, flags);
4715 ctrl_status = readw(&ha->reg->ctrl_status);
4716 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) {
4717 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status);
4718 readl(&ha->reg->ctrl_status);
4719 }
4720 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4721
4722 /* If soft reset fails then most probably the bios on other
4723 * function is also enabled.
4724 * Since the initialization is sequential the other fn
4725 * wont be able to acknowledge the soft reset.
4726 * Issue a force soft reset to workaround this scenario.
4727 */
4728 if (max_wait_time == 0) {
4729 /* Issue Force Soft Reset */
4730 spin_lock_irqsave(&ha->hardware_lock, flags);
4731 writel(set_rmask(CSR_FORCE_SOFT_RESET), &ha->reg->ctrl_status);
4732 readl(&ha->reg->ctrl_status);
4733 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4734 /* Wait until the firmware tells us the Soft Reset is done */
4735 max_wait_time = SOFT_RESET_TOV;
4736 do {
4737 spin_lock_irqsave(&ha->hardware_lock, flags);
4738 ctrl_status = readw(&ha->reg->ctrl_status);
4739 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4740
4741 if ((ctrl_status & CSR_FORCE_SOFT_RESET) == 0) {
4742 status = QLA_SUCCESS;
4743 break;
4744 }
4745
4746 msleep(1000);
4747 } while ((--max_wait_time));
4748 }
4749
4750 return status;
4751 }
4752
4753 /**
4754 * qla4xxx_abort_active_cmds - returns all outstanding i/o requests to O.S.
4755 * @ha: Pointer to host adapter structure.
4756 * @res: returned scsi status
4757 *
4758 * This routine is called just prior to a HARD RESET to return all
4759 * outstanding commands back to the Operating System.
4760 * Caller should make sure that the following locks are released
4761 * before this calling routine: Hardware lock, and io_request_lock.
4762 **/
4763 static void qla4xxx_abort_active_cmds(struct scsi_qla_host *ha, int res)
4764 {
4765 struct srb *srb;
4766 int i;
4767 unsigned long flags;
4768
4769 spin_lock_irqsave(&ha->hardware_lock, flags);
4770 for (i = 0; i < ha->host->can_queue; i++) {
4771 srb = qla4xxx_del_from_active_array(ha, i);
4772 if (srb != NULL) {
4773 srb->cmd->result = res;
4774 kref_put(&srb->srb_ref, qla4xxx_srb_compl);
4775 }
4776 }
4777 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4778 }
4779
4780 void qla4xxx_dead_adapter_cleanup(struct scsi_qla_host *ha)
4781 {
4782 clear_bit(AF_ONLINE, &ha->flags);
4783
4784 /* Disable the board */
4785 ql4_printk(KERN_INFO, ha, "Disabling the board\n");
4786
4787 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
4788 qla4xxx_mark_all_devices_missing(ha);
4789 clear_bit(AF_INIT_DONE, &ha->flags);
4790 }
4791
4792 static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session)
4793 {
4794 struct iscsi_session *sess;
4795 struct ddb_entry *ddb_entry;
4796
4797 sess = cls_session->dd_data;
4798 ddb_entry = sess->dd_data;
4799 ddb_entry->fw_ddb_device_state = DDB_DS_SESSION_FAILED;
4800
4801 if (ddb_entry->ddb_type == FLASH_DDB)
4802 iscsi_block_session(ddb_entry->sess);
4803 else
4804 iscsi_session_failure(cls_session->dd_data,
4805 ISCSI_ERR_CONN_FAILED);
4806 }
4807
4808 /**
4809 * qla4xxx_recover_adapter - recovers adapter after a fatal error
4810 * @ha: Pointer to host adapter structure.
4811 **/
4812 static int qla4xxx_recover_adapter(struct scsi_qla_host *ha)
4813 {
4814 int status = QLA_ERROR;
4815 uint8_t reset_chip = 0;
4816 uint32_t dev_state;
4817 unsigned long wait;
4818
4819 /* Stall incoming I/O until we are done */
4820 scsi_block_requests(ha->host);
4821 clear_bit(AF_ONLINE, &ha->flags);
4822 clear_bit(AF_LINK_UP, &ha->flags);
4823
4824 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: adapter OFFLINE\n", __func__));
4825
4826 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
4827
4828 if ((is_qla8032(ha) || is_qla8042(ha)) &&
4829 !test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) {
4830 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
4831 __func__);
4832 /* disable pause frame for ISP83xx */
4833 qla4_83xx_disable_pause(ha);
4834 }
4835
4836 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session);
4837
4838 if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
4839 reset_chip = 1;
4840
4841 /* For the DPC_RESET_HA_INTR case (ISP-4xxx specific)
4842 * do not reset adapter, jump to initialize_adapter */
4843 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
4844 status = QLA_SUCCESS;
4845 goto recover_ha_init_adapter;
4846 }
4847
4848 /* For the ISP-8xxx adapter, issue a stop_firmware if invoked
4849 * from eh_host_reset or ioctl module */
4850 if (is_qla80XX(ha) && !reset_chip &&
4851 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) {
4852
4853 DEBUG2(ql4_printk(KERN_INFO, ha,
4854 "scsi%ld: %s - Performing stop_firmware...\n",
4855 ha->host_no, __func__));
4856 status = ha->isp_ops->reset_firmware(ha);
4857 if (status == QLA_SUCCESS) {
4858 ha->isp_ops->disable_intrs(ha);
4859 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
4860 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
4861 } else {
4862 /* If the stop_firmware fails then
4863 * reset the entire chip */
4864 reset_chip = 1;
4865 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
4866 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4867 }
4868 }
4869
4870 /* Issue full chip reset if recovering from a catastrophic error,
4871 * or if stop_firmware fails for ISP-8xxx.
4872 * This is the default case for ISP-4xxx */
4873 if (is_qla40XX(ha) || reset_chip) {
4874 if (is_qla40XX(ha))
4875 goto chip_reset;
4876
4877 /* Check if 8XXX firmware is alive or not
4878 * We may have arrived here from NEED_RESET
4879 * detection only */
4880 if (test_bit(AF_FW_RECOVERY, &ha->flags))
4881 goto chip_reset;
4882
4883 wait = jiffies + (FW_ALIVE_WAIT_TOV * HZ);
4884 while (time_before(jiffies, wait)) {
4885 if (qla4_8xxx_check_fw_alive(ha)) {
4886 qla4xxx_mailbox_premature_completion(ha);
4887 break;
4888 }
4889
4890 set_current_state(TASK_UNINTERRUPTIBLE);
4891 schedule_timeout(HZ);
4892 }
4893 chip_reset:
4894 if (!test_bit(AF_FW_RECOVERY, &ha->flags))
4895 qla4xxx_cmd_wait(ha);
4896
4897 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
4898 DEBUG2(ql4_printk(KERN_INFO, ha,
4899 "scsi%ld: %s - Performing chip reset..\n",
4900 ha->host_no, __func__));
4901 status = ha->isp_ops->reset_chip(ha);
4902 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
4903 }
4904
4905 /* Flush any pending ddb changed AENs */
4906 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
4907
4908 recover_ha_init_adapter:
4909 /* Upon successful firmware/chip reset, re-initialize the adapter */
4910 if (status == QLA_SUCCESS) {
4911 /* For ISP-4xxx, force function 1 to always initialize
4912 * before function 3 to prevent both funcions from
4913 * stepping on top of the other */
4914 if (is_qla40XX(ha) && (ha->mac_index == 3))
4915 ssleep(6);
4916
4917 /* NOTE: AF_ONLINE flag set upon successful completion of
4918 * qla4xxx_initialize_adapter */
4919 status = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
4920 if (is_qla80XX(ha) && (status == QLA_ERROR)) {
4921 status = qla4_8xxx_check_init_adapter_retry(ha);
4922 if (status == QLA_ERROR) {
4923 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Don't retry recover adapter\n",
4924 ha->host_no, __func__);
4925 qla4xxx_dead_adapter_cleanup(ha);
4926 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
4927 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
4928 clear_bit(DPC_RESET_HA_FW_CONTEXT,
4929 &ha->dpc_flags);
4930 goto exit_recover;
4931 }
4932 }
4933 }
4934
4935 /* Retry failed adapter initialization, if necessary
4936 * Do not retry initialize_adapter for RESET_HA_INTR (ISP-4xxx specific)
4937 * case to prevent ping-pong resets between functions */
4938 if (!test_bit(AF_ONLINE, &ha->flags) &&
4939 !test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
4940 /* Adapter initialization failed, see if we can retry
4941 * resetting the ha.
4942 * Since we don't want to block the DPC for too long
4943 * with multiple resets in the same thread,
4944 * utilize DPC to retry */
4945 if (is_qla80XX(ha)) {
4946 ha->isp_ops->idc_lock(ha);
4947 dev_state = qla4_8xxx_rd_direct(ha,
4948 QLA8XXX_CRB_DEV_STATE);
4949 ha->isp_ops->idc_unlock(ha);
4950 if (dev_state == QLA8XXX_DEV_FAILED) {
4951 ql4_printk(KERN_INFO, ha, "%s: don't retry "
4952 "recover adapter. H/W is in Failed "
4953 "state\n", __func__);
4954 qla4xxx_dead_adapter_cleanup(ha);
4955 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
4956 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
4957 clear_bit(DPC_RESET_HA_FW_CONTEXT,
4958 &ha->dpc_flags);
4959 status = QLA_ERROR;
4960
4961 goto exit_recover;
4962 }
4963 }
4964
4965 if (!test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags)) {
4966 ha->retry_reset_ha_cnt = MAX_RESET_HA_RETRIES;
4967 DEBUG2(printk("scsi%ld: recover adapter - retrying "
4968 "(%d) more times\n", ha->host_no,
4969 ha->retry_reset_ha_cnt));
4970 set_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
4971 status = QLA_ERROR;
4972 } else {
4973 if (ha->retry_reset_ha_cnt > 0) {
4974 /* Schedule another Reset HA--DPC will retry */
4975 ha->retry_reset_ha_cnt--;
4976 DEBUG2(printk("scsi%ld: recover adapter - "
4977 "retry remaining %d\n",
4978 ha->host_no,
4979 ha->retry_reset_ha_cnt));
4980 status = QLA_ERROR;
4981 }
4982
4983 if (ha->retry_reset_ha_cnt == 0) {
4984 /* Recover adapter retries have been exhausted.
4985 * Adapter DEAD */
4986 DEBUG2(printk("scsi%ld: recover adapter "
4987 "failed - board disabled\n",
4988 ha->host_no));
4989 qla4xxx_dead_adapter_cleanup(ha);
4990 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
4991 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
4992 clear_bit(DPC_RESET_HA_FW_CONTEXT,
4993 &ha->dpc_flags);
4994 status = QLA_ERROR;
4995 }
4996 }
4997 } else {
4998 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
4999 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
5000 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
5001 }
5002
5003 exit_recover:
5004 ha->adapter_error_count++;
5005
5006 if (test_bit(AF_ONLINE, &ha->flags))
5007 ha->isp_ops->enable_intrs(ha);
5008
5009 scsi_unblock_requests(ha->host);
5010
5011 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
5012 DEBUG2(printk("scsi%ld: recover adapter: %s\n", ha->host_no,
5013 status == QLA_ERROR ? "FAILED" : "SUCCEEDED"));
5014
5015 return status;
5016 }
5017
5018 static void qla4xxx_relogin_devices(struct iscsi_cls_session *cls_session)
5019 {
5020 struct iscsi_session *sess;
5021 struct ddb_entry *ddb_entry;
5022 struct scsi_qla_host *ha;
5023
5024 sess = cls_session->dd_data;
5025 ddb_entry = sess->dd_data;
5026 ha = ddb_entry->ha;
5027 if (!iscsi_is_session_online(cls_session)) {
5028 if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) {
5029 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5030 " unblock session\n", ha->host_no, __func__,
5031 ddb_entry->fw_ddb_index);
5032 iscsi_unblock_session(ddb_entry->sess);
5033 } else {
5034 /* Trigger relogin */
5035 if (ddb_entry->ddb_type == FLASH_DDB) {
5036 if (!(test_bit(DF_RELOGIN, &ddb_entry->flags) ||
5037 test_bit(DF_DISABLE_RELOGIN,
5038 &ddb_entry->flags)))
5039 qla4xxx_arm_relogin_timer(ddb_entry);
5040 } else
5041 iscsi_session_failure(cls_session->dd_data,
5042 ISCSI_ERR_CONN_FAILED);
5043 }
5044 }
5045 }
5046
5047 int qla4xxx_unblock_flash_ddb(struct iscsi_cls_session *cls_session)
5048 {
5049 struct iscsi_session *sess;
5050 struct ddb_entry *ddb_entry;
5051 struct scsi_qla_host *ha;
5052
5053 sess = cls_session->dd_data;
5054 ddb_entry = sess->dd_data;
5055 ha = ddb_entry->ha;
5056 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5057 " unblock session\n", ha->host_no, __func__,
5058 ddb_entry->fw_ddb_index);
5059
5060 iscsi_unblock_session(ddb_entry->sess);
5061
5062 /* Start scan target */
5063 if (test_bit(AF_ONLINE, &ha->flags)) {
5064 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5065 " start scan\n", ha->host_no, __func__,
5066 ddb_entry->fw_ddb_index);
5067 scsi_queue_work(ha->host, &ddb_entry->sess->scan_work);
5068 }
5069 return QLA_SUCCESS;
5070 }
5071
5072 int qla4xxx_unblock_ddb(struct iscsi_cls_session *cls_session)
5073 {
5074 struct iscsi_session *sess;
5075 struct ddb_entry *ddb_entry;
5076 struct scsi_qla_host *ha;
5077 int status = QLA_SUCCESS;
5078
5079 sess = cls_session->dd_data;
5080 ddb_entry = sess->dd_data;
5081 ha = ddb_entry->ha;
5082 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5083 " unblock user space session\n", ha->host_no, __func__,
5084 ddb_entry->fw_ddb_index);
5085
5086 if (!iscsi_is_session_online(cls_session)) {
5087 iscsi_conn_start(ddb_entry->conn);
5088 iscsi_conn_login_event(ddb_entry->conn,
5089 ISCSI_CONN_STATE_LOGGED_IN);
5090 } else {
5091 ql4_printk(KERN_INFO, ha,
5092 "scsi%ld: %s: ddb[%d] session [%d] already logged in\n",
5093 ha->host_no, __func__, ddb_entry->fw_ddb_index,
5094 cls_session->sid);
5095 status = QLA_ERROR;
5096 }
5097
5098 return status;
5099 }
5100
5101 static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha)
5102 {
5103 iscsi_host_for_each_session(ha->host, qla4xxx_relogin_devices);
5104 }
5105
5106 static void qla4xxx_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)
5107 {
5108 uint16_t relogin_timer;
5109 struct iscsi_session *sess;
5110 struct ddb_entry *ddb_entry;
5111 struct scsi_qla_host *ha;
5112
5113 sess = cls_sess->dd_data;
5114 ddb_entry = sess->dd_data;
5115 ha = ddb_entry->ha;
5116
5117 relogin_timer = max(ddb_entry->default_relogin_timeout,
5118 (uint16_t)RELOGIN_TOV);
5119 atomic_set(&ddb_entry->relogin_timer, relogin_timer);
5120
5121 DEBUG2(ql4_printk(KERN_INFO, ha,
5122 "scsi%ld: Relogin index [%d]. TOV=%d\n", ha->host_no,
5123 ddb_entry->fw_ddb_index, relogin_timer));
5124
5125 qla4xxx_login_flash_ddb(cls_sess);
5126 }
5127
5128 static void qla4xxx_dpc_relogin(struct iscsi_cls_session *cls_sess)
5129 {
5130 struct iscsi_session *sess;
5131 struct ddb_entry *ddb_entry;
5132 struct scsi_qla_host *ha;
5133
5134 sess = cls_sess->dd_data;
5135 ddb_entry = sess->dd_data;
5136 ha = ddb_entry->ha;
5137
5138 if (!(ddb_entry->ddb_type == FLASH_DDB))
5139 return;
5140
5141 if (test_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags))
5142 return;
5143
5144 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags) &&
5145 !iscsi_is_session_online(cls_sess)) {
5146 DEBUG2(ql4_printk(KERN_INFO, ha,
5147 "relogin issued\n"));
5148 qla4xxx_relogin_flash_ddb(cls_sess);
5149 }
5150 }
5151
5152 void qla4xxx_wake_dpc(struct scsi_qla_host *ha)
5153 {
5154 if (ha->dpc_thread)
5155 queue_work(ha->dpc_thread, &ha->dpc_work);
5156 }
5157
5158 static struct qla4_work_evt *
5159 qla4xxx_alloc_work(struct scsi_qla_host *ha, uint32_t data_size,
5160 enum qla4_work_type type)
5161 {
5162 struct qla4_work_evt *e;
5163 uint32_t size = sizeof(struct qla4_work_evt) + data_size;
5164
5165 e = kzalloc(size, GFP_ATOMIC);
5166 if (!e)
5167 return NULL;
5168
5169 INIT_LIST_HEAD(&e->list);
5170 e->type = type;
5171 return e;
5172 }
5173
5174 static void qla4xxx_post_work(struct scsi_qla_host *ha,
5175 struct qla4_work_evt *e)
5176 {
5177 unsigned long flags;
5178
5179 spin_lock_irqsave(&ha->work_lock, flags);
5180 list_add_tail(&e->list, &ha->work_list);
5181 spin_unlock_irqrestore(&ha->work_lock, flags);
5182 qla4xxx_wake_dpc(ha);
5183 }
5184
5185 int qla4xxx_post_aen_work(struct scsi_qla_host *ha,
5186 enum iscsi_host_event_code aen_code,
5187 uint32_t data_size, uint8_t *data)
5188 {
5189 struct qla4_work_evt *e;
5190
5191 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_AEN);
5192 if (!e)
5193 return QLA_ERROR;
5194
5195 e->u.aen.code = aen_code;
5196 e->u.aen.data_size = data_size;
5197 memcpy(e->u.aen.data, data, data_size);
5198
5199 qla4xxx_post_work(ha, e);
5200
5201 return QLA_SUCCESS;
5202 }
5203
5204 int qla4xxx_post_ping_evt_work(struct scsi_qla_host *ha,
5205 uint32_t status, uint32_t pid,
5206 uint32_t data_size, uint8_t *data)
5207 {
5208 struct qla4_work_evt *e;
5209
5210 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_PING_STATUS);
5211 if (!e)
5212 return QLA_ERROR;
5213
5214 e->u.ping.status = status;
5215 e->u.ping.pid = pid;
5216 e->u.ping.data_size = data_size;
5217 memcpy(e->u.ping.data, data, data_size);
5218
5219 qla4xxx_post_work(ha, e);
5220
5221 return QLA_SUCCESS;
5222 }
5223
5224 static void qla4xxx_do_work(struct scsi_qla_host *ha)
5225 {
5226 struct qla4_work_evt *e, *tmp;
5227 unsigned long flags;
5228 LIST_HEAD(work);
5229
5230 spin_lock_irqsave(&ha->work_lock, flags);
5231 list_splice_init(&ha->work_list, &work);
5232 spin_unlock_irqrestore(&ha->work_lock, flags);
5233
5234 list_for_each_entry_safe(e, tmp, &work, list) {
5235 list_del_init(&e->list);
5236
5237 switch (e->type) {
5238 case QLA4_EVENT_AEN:
5239 iscsi_post_host_event(ha->host_no,
5240 &qla4xxx_iscsi_transport,
5241 e->u.aen.code,
5242 e->u.aen.data_size,
5243 e->u.aen.data);
5244 break;
5245 case QLA4_EVENT_PING_STATUS:
5246 iscsi_ping_comp_event(ha->host_no,
5247 &qla4xxx_iscsi_transport,
5248 e->u.ping.status,
5249 e->u.ping.pid,
5250 e->u.ping.data_size,
5251 e->u.ping.data);
5252 break;
5253 default:
5254 ql4_printk(KERN_WARNING, ha, "event type: 0x%x not "
5255 "supported", e->type);
5256 }
5257 kfree(e);
5258 }
5259 }
5260
5261 /**
5262 * qla4xxx_do_dpc - dpc routine
5263 * @data: in our case pointer to adapter structure
5264 *
5265 * This routine is a task that is schedule by the interrupt handler
5266 * to perform the background processing for interrupts. We put it
5267 * on a task queue that is consumed whenever the scheduler runs; that's
5268 * so you can do anything (i.e. put the process to sleep etc). In fact,
5269 * the mid-level tries to sleep when it reaches the driver threshold
5270 * "host->can_queue". This can cause a panic if we were in our interrupt code.
5271 **/
5272 static void qla4xxx_do_dpc(struct work_struct *work)
5273 {
5274 struct scsi_qla_host *ha =
5275 container_of(work, struct scsi_qla_host, dpc_work);
5276 int status = QLA_ERROR;
5277
5278 DEBUG2(ql4_printk(KERN_INFO, ha,
5279 "scsi%ld: %s: DPC handler waking up. flags = 0x%08lx, dpc_flags = 0x%08lx\n",
5280 ha->host_no, __func__, ha->flags, ha->dpc_flags));
5281
5282 /* Initialization not yet finished. Don't do anything yet. */
5283 if (!test_bit(AF_INIT_DONE, &ha->flags))
5284 return;
5285
5286 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
5287 DEBUG2(printk(KERN_INFO "scsi%ld: %s: flags = %lx\n",
5288 ha->host_no, __func__, ha->flags));
5289 return;
5290 }
5291
5292 /* post events to application */
5293 qla4xxx_do_work(ha);
5294
5295 if (is_qla80XX(ha)) {
5296 if (test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags)) {
5297 if (is_qla8032(ha) || is_qla8042(ha)) {
5298 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
5299 __func__);
5300 /* disable pause frame for ISP83xx */
5301 qla4_83xx_disable_pause(ha);
5302 }
5303
5304 ha->isp_ops->idc_lock(ha);
5305 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
5306 QLA8XXX_DEV_FAILED);
5307 ha->isp_ops->idc_unlock(ha);
5308 ql4_printk(KERN_INFO, ha, "HW State: FAILED\n");
5309 qla4_8xxx_device_state_handler(ha);
5310 }
5311
5312 if (test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags)) {
5313 if (is_qla8042(ha)) {
5314 if (ha->idc_info.info2 &
5315 ENABLE_INTERNAL_LOOPBACK) {
5316 ql4_printk(KERN_INFO, ha, "%s: Disabling ACB\n",
5317 __func__);
5318 status = qla4_84xx_config_acb(ha,
5319 ACB_CONFIG_DISABLE);
5320 if (status != QLA_SUCCESS) {
5321 ql4_printk(KERN_INFO, ha, "%s: ACB config failed\n",
5322 __func__);
5323 }
5324 }
5325 }
5326 qla4_83xx_post_idc_ack(ha);
5327 clear_bit(DPC_POST_IDC_ACK, &ha->dpc_flags);
5328 }
5329
5330 if (is_qla8042(ha) &&
5331 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags)) {
5332 ql4_printk(KERN_INFO, ha, "%s: Restoring ACB\n",
5333 __func__);
5334 if (qla4_84xx_config_acb(ha, ACB_CONFIG_SET) !=
5335 QLA_SUCCESS) {
5336 ql4_printk(KERN_INFO, ha, "%s: ACB config failed ",
5337 __func__);
5338 }
5339 clear_bit(DPC_RESTORE_ACB, &ha->dpc_flags);
5340 }
5341
5342 if (test_and_clear_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) {
5343 qla4_8xxx_need_qsnt_handler(ha);
5344 }
5345 }
5346
5347 if (!test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) &&
5348 (test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
5349 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
5350 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))) {
5351 if ((is_qla8022(ha) && ql4xdontresethba) ||
5352 ((is_qla8032(ha) || is_qla8042(ha)) &&
5353 qla4_83xx_idc_dontreset(ha))) {
5354 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n",
5355 ha->host_no, __func__));
5356 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
5357 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags);
5358 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
5359 goto dpc_post_reset_ha;
5360 }
5361 if (test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) ||
5362 test_bit(DPC_RESET_HA, &ha->dpc_flags))
5363 qla4xxx_recover_adapter(ha);
5364
5365 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
5366 uint8_t wait_time = RESET_INTR_TOV;
5367
5368 while ((readw(&ha->reg->ctrl_status) &
5369 (CSR_SOFT_RESET | CSR_FORCE_SOFT_RESET)) != 0) {
5370 if (--wait_time == 0)
5371 break;
5372 msleep(1000);
5373 }
5374 if (wait_time == 0)
5375 DEBUG2(printk("scsi%ld: %s: SR|FSR "
5376 "bit not cleared-- resetting\n",
5377 ha->host_no, __func__));
5378 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
5379 if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS) {
5380 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
5381 status = qla4xxx_recover_adapter(ha);
5382 }
5383 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags);
5384 if (status == QLA_SUCCESS)
5385 ha->isp_ops->enable_intrs(ha);
5386 }
5387 }
5388
5389 dpc_post_reset_ha:
5390 /* ---- process AEN? --- */
5391 if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags))
5392 qla4xxx_process_aen(ha, PROCESS_ALL_AENS);
5393
5394 /* ---- Get DHCP IP Address? --- */
5395 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags))
5396 qla4xxx_get_dhcp_ip_address(ha);
5397
5398 /* ---- relogin device? --- */
5399 if (adapter_up(ha) &&
5400 test_and_clear_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags)) {
5401 iscsi_host_for_each_session(ha->host, qla4xxx_dpc_relogin);
5402 }
5403
5404 /* ---- link change? --- */
5405 if (!test_bit(AF_LOOPBACK, &ha->flags) &&
5406 test_and_clear_bit(DPC_LINK_CHANGED, &ha->dpc_flags)) {
5407 if (!test_bit(AF_LINK_UP, &ha->flags)) {
5408 /* ---- link down? --- */
5409 qla4xxx_mark_all_devices_missing(ha);
5410 } else {
5411 /* ---- link up? --- *
5412 * F/W will auto login to all devices ONLY ONCE after
5413 * link up during driver initialization and runtime
5414 * fatal error recovery. Therefore, the driver must
5415 * manually relogin to devices when recovering from
5416 * connection failures, logouts, expired KATO, etc. */
5417 if (test_and_clear_bit(AF_BUILD_DDB_LIST, &ha->flags)) {
5418 qla4xxx_build_ddb_list(ha, ha->is_reset);
5419 iscsi_host_for_each_session(ha->host,
5420 qla4xxx_login_flash_ddb);
5421 } else
5422 qla4xxx_relogin_all_devices(ha);
5423 }
5424 }
5425 if (test_and_clear_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags)) {
5426 if (qla4xxx_sysfs_ddb_export(ha))
5427 ql4_printk(KERN_ERR, ha, "%s: Error exporting ddb to sysfs\n",
5428 __func__);
5429 }
5430 }
5431
5432 /**
5433 * qla4xxx_free_adapter - release the adapter
5434 * @ha: pointer to adapter structure
5435 **/
5436 static void qla4xxx_free_adapter(struct scsi_qla_host *ha)
5437 {
5438 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
5439
5440 /* Turn-off interrupts on the card. */
5441 ha->isp_ops->disable_intrs(ha);
5442
5443 if (is_qla40XX(ha)) {
5444 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR),
5445 &ha->reg->ctrl_status);
5446 readl(&ha->reg->ctrl_status);
5447 } else if (is_qla8022(ha)) {
5448 writel(0, &ha->qla4_82xx_reg->host_int);
5449 readl(&ha->qla4_82xx_reg->host_int);
5450 } else if (is_qla8032(ha) || is_qla8042(ha)) {
5451 writel(0, &ha->qla4_83xx_reg->risc_intr);
5452 readl(&ha->qla4_83xx_reg->risc_intr);
5453 }
5454
5455 /* Remove timer thread, if present */
5456 if (ha->timer_active)
5457 qla4xxx_stop_timer(ha);
5458
5459 /* Kill the kernel thread for this host */
5460 if (ha->dpc_thread)
5461 destroy_workqueue(ha->dpc_thread);
5462
5463 /* Kill the kernel thread for this host */
5464 if (ha->task_wq)
5465 destroy_workqueue(ha->task_wq);
5466
5467 /* Put firmware in known state */
5468 ha->isp_ops->reset_firmware(ha);
5469
5470 if (is_qla80XX(ha)) {
5471 ha->isp_ops->idc_lock(ha);
5472 qla4_8xxx_clear_drv_active(ha);
5473 ha->isp_ops->idc_unlock(ha);
5474 }
5475
5476 /* Detach interrupts */
5477 qla4xxx_free_irqs(ha);
5478
5479 /* free extra memory */
5480 qla4xxx_mem_free(ha);
5481 }
5482
5483 int qla4_8xxx_iospace_config(struct scsi_qla_host *ha)
5484 {
5485 int status = 0;
5486 unsigned long mem_base, mem_len, db_base, db_len;
5487 struct pci_dev *pdev = ha->pdev;
5488
5489 status = pci_request_regions(pdev, DRIVER_NAME);
5490 if (status) {
5491 printk(KERN_WARNING
5492 "scsi(%ld) Failed to reserve PIO regions (%s) "
5493 "status=%d\n", ha->host_no, pci_name(pdev), status);
5494 goto iospace_error_exit;
5495 }
5496
5497 DEBUG2(printk(KERN_INFO "%s: revision-id=%d\n",
5498 __func__, pdev->revision));
5499 ha->revision_id = pdev->revision;
5500
5501 /* remap phys address */
5502 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
5503 mem_len = pci_resource_len(pdev, 0);
5504 DEBUG2(printk(KERN_INFO "%s: ioremap from %lx a size of %lx\n",
5505 __func__, mem_base, mem_len));
5506
5507 /* mapping of pcibase pointer */
5508 ha->nx_pcibase = (unsigned long)ioremap(mem_base, mem_len);
5509 if (!ha->nx_pcibase) {
5510 printk(KERN_ERR
5511 "cannot remap MMIO (%s), aborting\n", pci_name(pdev));
5512 pci_release_regions(ha->pdev);
5513 goto iospace_error_exit;
5514 }
5515
5516 /* Mapping of IO base pointer, door bell read and write pointer */
5517
5518 /* mapping of IO base pointer */
5519 if (is_qla8022(ha)) {
5520 ha->qla4_82xx_reg = (struct device_reg_82xx __iomem *)
5521 ((uint8_t *)ha->nx_pcibase + 0xbc000 +
5522 (ha->pdev->devfn << 11));
5523 ha->nx_db_wr_ptr = (ha->pdev->devfn == 4 ? QLA82XX_CAM_RAM_DB1 :
5524 QLA82XX_CAM_RAM_DB2);
5525 } else if (is_qla8032(ha) || is_qla8042(ha)) {
5526 ha->qla4_83xx_reg = (struct device_reg_83xx __iomem *)
5527 ((uint8_t *)ha->nx_pcibase);
5528 }
5529
5530 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
5531 db_len = pci_resource_len(pdev, 4);
5532
5533 return 0;
5534 iospace_error_exit:
5535 return -ENOMEM;
5536 }
5537
5538 /***
5539 * qla4xxx_iospace_config - maps registers
5540 * @ha: pointer to adapter structure
5541 *
5542 * This routines maps HBA's registers from the pci address space
5543 * into the kernel virtual address space for memory mapped i/o.
5544 **/
5545 int qla4xxx_iospace_config(struct scsi_qla_host *ha)
5546 {
5547 unsigned long pio, pio_len, pio_flags;
5548 unsigned long mmio, mmio_len, mmio_flags;
5549
5550 pio = pci_resource_start(ha->pdev, 0);
5551 pio_len = pci_resource_len(ha->pdev, 0);
5552 pio_flags = pci_resource_flags(ha->pdev, 0);
5553 if (pio_flags & IORESOURCE_IO) {
5554 if (pio_len < MIN_IOBASE_LEN) {
5555 ql4_printk(KERN_WARNING, ha,
5556 "Invalid PCI I/O region size\n");
5557 pio = 0;
5558 }
5559 } else {
5560 ql4_printk(KERN_WARNING, ha, "region #0 not a PIO resource\n");
5561 pio = 0;
5562 }
5563
5564 /* Use MMIO operations for all accesses. */
5565 mmio = pci_resource_start(ha->pdev, 1);
5566 mmio_len = pci_resource_len(ha->pdev, 1);
5567 mmio_flags = pci_resource_flags(ha->pdev, 1);
5568
5569 if (!(mmio_flags & IORESOURCE_MEM)) {
5570 ql4_printk(KERN_ERR, ha,
5571 "region #0 not an MMIO resource, aborting\n");
5572
5573 goto iospace_error_exit;
5574 }
5575
5576 if (mmio_len < MIN_IOBASE_LEN) {
5577 ql4_printk(KERN_ERR, ha,
5578 "Invalid PCI mem region size, aborting\n");
5579 goto iospace_error_exit;
5580 }
5581
5582 if (pci_request_regions(ha->pdev, DRIVER_NAME)) {
5583 ql4_printk(KERN_WARNING, ha,
5584 "Failed to reserve PIO/MMIO regions\n");
5585
5586 goto iospace_error_exit;
5587 }
5588
5589 ha->pio_address = pio;
5590 ha->pio_length = pio_len;
5591 ha->reg = ioremap(mmio, MIN_IOBASE_LEN);
5592 if (!ha->reg) {
5593 ql4_printk(KERN_ERR, ha,
5594 "cannot remap MMIO, aborting\n");
5595
5596 goto iospace_error_exit;
5597 }
5598
5599 return 0;
5600
5601 iospace_error_exit:
5602 return -ENOMEM;
5603 }
5604
5605 static struct isp_operations qla4xxx_isp_ops = {
5606 .iospace_config = qla4xxx_iospace_config,
5607 .pci_config = qla4xxx_pci_config,
5608 .disable_intrs = qla4xxx_disable_intrs,
5609 .enable_intrs = qla4xxx_enable_intrs,
5610 .start_firmware = qla4xxx_start_firmware,
5611 .intr_handler = qla4xxx_intr_handler,
5612 .interrupt_service_routine = qla4xxx_interrupt_service_routine,
5613 .reset_chip = qla4xxx_soft_reset,
5614 .reset_firmware = qla4xxx_hw_reset,
5615 .queue_iocb = qla4xxx_queue_iocb,
5616 .complete_iocb = qla4xxx_complete_iocb,
5617 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out,
5618 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in,
5619 .get_sys_info = qla4xxx_get_sys_info,
5620 .queue_mailbox_command = qla4xxx_queue_mbox_cmd,
5621 .process_mailbox_interrupt = qla4xxx_process_mbox_intr,
5622 };
5623
5624 static struct isp_operations qla4_82xx_isp_ops = {
5625 .iospace_config = qla4_8xxx_iospace_config,
5626 .pci_config = qla4_8xxx_pci_config,
5627 .disable_intrs = qla4_82xx_disable_intrs,
5628 .enable_intrs = qla4_82xx_enable_intrs,
5629 .start_firmware = qla4_8xxx_load_risc,
5630 .restart_firmware = qla4_82xx_try_start_fw,
5631 .intr_handler = qla4_82xx_intr_handler,
5632 .interrupt_service_routine = qla4_82xx_interrupt_service_routine,
5633 .need_reset = qla4_8xxx_need_reset,
5634 .reset_chip = qla4_82xx_isp_reset,
5635 .reset_firmware = qla4_8xxx_stop_firmware,
5636 .queue_iocb = qla4_82xx_queue_iocb,
5637 .complete_iocb = qla4_82xx_complete_iocb,
5638 .rd_shdw_req_q_out = qla4_82xx_rd_shdw_req_q_out,
5639 .rd_shdw_rsp_q_in = qla4_82xx_rd_shdw_rsp_q_in,
5640 .get_sys_info = qla4_8xxx_get_sys_info,
5641 .rd_reg_direct = qla4_82xx_rd_32,
5642 .wr_reg_direct = qla4_82xx_wr_32,
5643 .rd_reg_indirect = qla4_82xx_md_rd_32,
5644 .wr_reg_indirect = qla4_82xx_md_wr_32,
5645 .idc_lock = qla4_82xx_idc_lock,
5646 .idc_unlock = qla4_82xx_idc_unlock,
5647 .rom_lock_recovery = qla4_82xx_rom_lock_recovery,
5648 .queue_mailbox_command = qla4_82xx_queue_mbox_cmd,
5649 .process_mailbox_interrupt = qla4_82xx_process_mbox_intr,
5650 };
5651
5652 static struct isp_operations qla4_83xx_isp_ops = {
5653 .iospace_config = qla4_8xxx_iospace_config,
5654 .pci_config = qla4_8xxx_pci_config,
5655 .disable_intrs = qla4_83xx_disable_intrs,
5656 .enable_intrs = qla4_83xx_enable_intrs,
5657 .start_firmware = qla4_8xxx_load_risc,
5658 .restart_firmware = qla4_83xx_start_firmware,
5659 .intr_handler = qla4_83xx_intr_handler,
5660 .interrupt_service_routine = qla4_83xx_interrupt_service_routine,
5661 .need_reset = qla4_8xxx_need_reset,
5662 .reset_chip = qla4_83xx_isp_reset,
5663 .reset_firmware = qla4_8xxx_stop_firmware,
5664 .queue_iocb = qla4_83xx_queue_iocb,
5665 .complete_iocb = qla4_83xx_complete_iocb,
5666 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out,
5667 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in,
5668 .get_sys_info = qla4_8xxx_get_sys_info,
5669 .rd_reg_direct = qla4_83xx_rd_reg,
5670 .wr_reg_direct = qla4_83xx_wr_reg,
5671 .rd_reg_indirect = qla4_83xx_rd_reg_indirect,
5672 .wr_reg_indirect = qla4_83xx_wr_reg_indirect,
5673 .idc_lock = qla4_83xx_drv_lock,
5674 .idc_unlock = qla4_83xx_drv_unlock,
5675 .rom_lock_recovery = qla4_83xx_rom_lock_recovery,
5676 .queue_mailbox_command = qla4_83xx_queue_mbox_cmd,
5677 .process_mailbox_interrupt = qla4_83xx_process_mbox_intr,
5678 };
5679
5680 uint16_t qla4xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha)
5681 {
5682 return (uint16_t)le32_to_cpu(ha->shadow_regs->req_q_out);
5683 }
5684
5685 uint16_t qla4_82xx_rd_shdw_req_q_out(struct scsi_qla_host *ha)
5686 {
5687 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->req_q_out));
5688 }
5689
5690 uint16_t qla4xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha)
5691 {
5692 return (uint16_t)le32_to_cpu(ha->shadow_regs->rsp_q_in);
5693 }
5694
5695 uint16_t qla4_82xx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha)
5696 {
5697 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->rsp_q_in));
5698 }
5699
5700 static ssize_t qla4xxx_show_boot_eth_info(void *data, int type, char *buf)
5701 {
5702 struct scsi_qla_host *ha = data;
5703 char *str = buf;
5704 int rc;
5705
5706 switch (type) {
5707 case ISCSI_BOOT_ETH_FLAGS:
5708 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT);
5709 break;
5710 case ISCSI_BOOT_ETH_INDEX:
5711 rc = sprintf(str, "0\n");
5712 break;
5713 case ISCSI_BOOT_ETH_MAC:
5714 rc = sysfs_format_mac(str, ha->my_mac,
5715 MAC_ADDR_LEN);
5716 break;
5717 default:
5718 rc = -ENOSYS;
5719 break;
5720 }
5721 return rc;
5722 }
5723
5724 static umode_t qla4xxx_eth_get_attr_visibility(void *data, int type)
5725 {
5726 int rc;
5727
5728 switch (type) {
5729 case ISCSI_BOOT_ETH_FLAGS:
5730 case ISCSI_BOOT_ETH_MAC:
5731 case ISCSI_BOOT_ETH_INDEX:
5732 rc = S_IRUGO;
5733 break;
5734 default:
5735 rc = 0;
5736 break;
5737 }
5738 return rc;
5739 }
5740
5741 static ssize_t qla4xxx_show_boot_ini_info(void *data, int type, char *buf)
5742 {
5743 struct scsi_qla_host *ha = data;
5744 char *str = buf;
5745 int rc;
5746
5747 switch (type) {
5748 case ISCSI_BOOT_INI_INITIATOR_NAME:
5749 rc = sprintf(str, "%s\n", ha->name_string);
5750 break;
5751 default:
5752 rc = -ENOSYS;
5753 break;
5754 }
5755 return rc;
5756 }
5757
5758 static umode_t qla4xxx_ini_get_attr_visibility(void *data, int type)
5759 {
5760 int rc;
5761
5762 switch (type) {
5763 case ISCSI_BOOT_INI_INITIATOR_NAME:
5764 rc = S_IRUGO;
5765 break;
5766 default:
5767 rc = 0;
5768 break;
5769 }
5770 return rc;
5771 }
5772
5773 static ssize_t
5774 qla4xxx_show_boot_tgt_info(struct ql4_boot_session_info *boot_sess, int type,
5775 char *buf)
5776 {
5777 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0];
5778 char *str = buf;
5779 int rc;
5780
5781 switch (type) {
5782 case ISCSI_BOOT_TGT_NAME:
5783 rc = sprintf(buf, "%s\n", (char *)&boot_sess->target_name);
5784 break;
5785 case ISCSI_BOOT_TGT_IP_ADDR:
5786 if (boot_sess->conn_list[0].dest_ipaddr.ip_type == 0x1)
5787 rc = sprintf(buf, "%pI4\n",
5788 &boot_conn->dest_ipaddr.ip_address);
5789 else
5790 rc = sprintf(str, "%pI6\n",
5791 &boot_conn->dest_ipaddr.ip_address);
5792 break;
5793 case ISCSI_BOOT_TGT_PORT:
5794 rc = sprintf(str, "%d\n", boot_conn->dest_port);
5795 break;
5796 case ISCSI_BOOT_TGT_CHAP_NAME:
5797 rc = sprintf(str, "%.*s\n",
5798 boot_conn->chap.target_chap_name_length,
5799 (char *)&boot_conn->chap.target_chap_name);
5800 break;
5801 case ISCSI_BOOT_TGT_CHAP_SECRET:
5802 rc = sprintf(str, "%.*s\n",
5803 boot_conn->chap.target_secret_length,
5804 (char *)&boot_conn->chap.target_secret);
5805 break;
5806 case ISCSI_BOOT_TGT_REV_CHAP_NAME:
5807 rc = sprintf(str, "%.*s\n",
5808 boot_conn->chap.intr_chap_name_length,
5809 (char *)&boot_conn->chap.intr_chap_name);
5810 break;
5811 case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
5812 rc = sprintf(str, "%.*s\n",
5813 boot_conn->chap.intr_secret_length,
5814 (char *)&boot_conn->chap.intr_secret);
5815 break;
5816 case ISCSI_BOOT_TGT_FLAGS:
5817 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT);
5818 break;
5819 case ISCSI_BOOT_TGT_NIC_ASSOC:
5820 rc = sprintf(str, "0\n");
5821 break;
5822 default:
5823 rc = -ENOSYS;
5824 break;
5825 }
5826 return rc;
5827 }
5828
5829 static ssize_t qla4xxx_show_boot_tgt_pri_info(void *data, int type, char *buf)
5830 {
5831 struct scsi_qla_host *ha = data;
5832 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_pri_sess);
5833
5834 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf);
5835 }
5836
5837 static ssize_t qla4xxx_show_boot_tgt_sec_info(void *data, int type, char *buf)
5838 {
5839 struct scsi_qla_host *ha = data;
5840 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_sec_sess);
5841
5842 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf);
5843 }
5844
5845 static umode_t qla4xxx_tgt_get_attr_visibility(void *data, int type)
5846 {
5847 int rc;
5848
5849 switch (type) {
5850 case ISCSI_BOOT_TGT_NAME:
5851 case ISCSI_BOOT_TGT_IP_ADDR:
5852 case ISCSI_BOOT_TGT_PORT:
5853 case ISCSI_BOOT_TGT_CHAP_NAME:
5854 case ISCSI_BOOT_TGT_CHAP_SECRET:
5855 case ISCSI_BOOT_TGT_REV_CHAP_NAME:
5856 case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
5857 case ISCSI_BOOT_TGT_NIC_ASSOC:
5858 case ISCSI_BOOT_TGT_FLAGS:
5859 rc = S_IRUGO;
5860 break;
5861 default:
5862 rc = 0;
5863 break;
5864 }
5865 return rc;
5866 }
5867
5868 static void qla4xxx_boot_release(void *data)
5869 {
5870 struct scsi_qla_host *ha = data;
5871
5872 scsi_host_put(ha->host);
5873 }
5874
5875 static int get_fw_boot_info(struct scsi_qla_host *ha, uint16_t ddb_index[])
5876 {
5877 dma_addr_t buf_dma;
5878 uint32_t addr, pri_addr, sec_addr;
5879 uint32_t offset;
5880 uint16_t func_num;
5881 uint8_t val;
5882 uint8_t *buf = NULL;
5883 size_t size = 13 * sizeof(uint8_t);
5884 int ret = QLA_SUCCESS;
5885
5886 func_num = PCI_FUNC(ha->pdev->devfn);
5887
5888 ql4_printk(KERN_INFO, ha, "%s: Get FW boot info for 0x%x func %d\n",
5889 __func__, ha->pdev->device, func_num);
5890
5891 if (is_qla40XX(ha)) {
5892 if (func_num == 1) {
5893 addr = NVRAM_PORT0_BOOT_MODE;
5894 pri_addr = NVRAM_PORT0_BOOT_PRI_TGT;
5895 sec_addr = NVRAM_PORT0_BOOT_SEC_TGT;
5896 } else if (func_num == 3) {
5897 addr = NVRAM_PORT1_BOOT_MODE;
5898 pri_addr = NVRAM_PORT1_BOOT_PRI_TGT;
5899 sec_addr = NVRAM_PORT1_BOOT_SEC_TGT;
5900 } else {
5901 ret = QLA_ERROR;
5902 goto exit_boot_info;
5903 }
5904
5905 /* Check Boot Mode */
5906 val = rd_nvram_byte(ha, addr);
5907 if (!(val & 0x07)) {
5908 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Adapter boot "
5909 "options : 0x%x\n", __func__, val));
5910 ret = QLA_ERROR;
5911 goto exit_boot_info;
5912 }
5913
5914 /* get primary valid target index */
5915 val = rd_nvram_byte(ha, pri_addr);
5916 if (val & BIT_7)
5917 ddb_index[0] = (val & 0x7f);
5918
5919 /* get secondary valid target index */
5920 val = rd_nvram_byte(ha, sec_addr);
5921 if (val & BIT_7)
5922 ddb_index[1] = (val & 0x7f);
5923
5924 } else if (is_qla80XX(ha)) {
5925 buf = dma_alloc_coherent(&ha->pdev->dev, size,
5926 &buf_dma, GFP_KERNEL);
5927 if (!buf) {
5928 DEBUG2(ql4_printk(KERN_ERR, ha,
5929 "%s: Unable to allocate dma buffer\n",
5930 __func__));
5931 ret = QLA_ERROR;
5932 goto exit_boot_info;
5933 }
5934
5935 if (ha->port_num == 0)
5936 offset = BOOT_PARAM_OFFSET_PORT0;
5937 else if (ha->port_num == 1)
5938 offset = BOOT_PARAM_OFFSET_PORT1;
5939 else {
5940 ret = QLA_ERROR;
5941 goto exit_boot_info_free;
5942 }
5943 addr = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_iscsi_param * 4) +
5944 offset;
5945 if (qla4xxx_get_flash(ha, buf_dma, addr,
5946 13 * sizeof(uint8_t)) != QLA_SUCCESS) {
5947 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: Get Flash"
5948 " failed\n", ha->host_no, __func__));
5949 ret = QLA_ERROR;
5950 goto exit_boot_info_free;
5951 }
5952 /* Check Boot Mode */
5953 if (!(buf[1] & 0x07)) {
5954 DEBUG2(ql4_printk(KERN_INFO, ha, "Firmware boot options"
5955 " : 0x%x\n", buf[1]));
5956 ret = QLA_ERROR;
5957 goto exit_boot_info_free;
5958 }
5959
5960 /* get primary valid target index */
5961 if (buf[2] & BIT_7)
5962 ddb_index[0] = buf[2] & 0x7f;
5963
5964 /* get secondary valid target index */
5965 if (buf[11] & BIT_7)
5966 ddb_index[1] = buf[11] & 0x7f;
5967 } else {
5968 ret = QLA_ERROR;
5969 goto exit_boot_info;
5970 }
5971
5972 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary target ID %d, Secondary"
5973 " target ID %d\n", __func__, ddb_index[0],
5974 ddb_index[1]));
5975
5976 exit_boot_info_free:
5977 dma_free_coherent(&ha->pdev->dev, size, buf, buf_dma);
5978 exit_boot_info:
5979 ha->pri_ddb_idx = ddb_index[0];
5980 ha->sec_ddb_idx = ddb_index[1];
5981 return ret;
5982 }
5983
5984 /**
5985 * qla4xxx_get_bidi_chap - Get a BIDI CHAP user and password
5986 * @ha: pointer to adapter structure
5987 * @username: CHAP username to be returned
5988 * @password: CHAP password to be returned
5989 *
5990 * If a boot entry has BIDI CHAP enabled then we need to set the BIDI CHAP
5991 * user and password in the sysfs entry in /sys/firmware/iscsi_boot#/.
5992 * So from the CHAP cache find the first BIDI CHAP entry and set it
5993 * to the boot record in sysfs.
5994 **/
5995 static int qla4xxx_get_bidi_chap(struct scsi_qla_host *ha, char *username,
5996 char *password)
5997 {
5998 int i, ret = -EINVAL;
5999 int max_chap_entries = 0;
6000 struct ql4_chap_table *chap_table;
6001
6002 if (is_qla80XX(ha))
6003 max_chap_entries = (ha->hw.flt_chap_size / 2) /
6004 sizeof(struct ql4_chap_table);
6005 else
6006 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
6007
6008 if (!ha->chap_list) {
6009 ql4_printk(KERN_ERR, ha, "Do not have CHAP table cache\n");
6010 return ret;
6011 }
6012
6013 mutex_lock(&ha->chap_sem);
6014 for (i = 0; i < max_chap_entries; i++) {
6015 chap_table = (struct ql4_chap_table *)ha->chap_list + i;
6016 if (chap_table->cookie !=
6017 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) {
6018 continue;
6019 }
6020
6021 if (chap_table->flags & BIT_7) /* local */
6022 continue;
6023
6024 if (!(chap_table->flags & BIT_6)) /* Not BIDI */
6025 continue;
6026
6027 strlcpy(password, chap_table->secret, QL4_CHAP_MAX_SECRET_LEN);
6028 strlcpy(username, chap_table->name, QL4_CHAP_MAX_NAME_LEN);
6029 ret = 0;
6030 break;
6031 }
6032 mutex_unlock(&ha->chap_sem);
6033
6034 return ret;
6035 }
6036
6037
6038 static int qla4xxx_get_boot_target(struct scsi_qla_host *ha,
6039 struct ql4_boot_session_info *boot_sess,
6040 uint16_t ddb_index)
6041 {
6042 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0];
6043 struct dev_db_entry *fw_ddb_entry;
6044 dma_addr_t fw_ddb_entry_dma;
6045 uint16_t idx;
6046 uint16_t options;
6047 int ret = QLA_SUCCESS;
6048
6049 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
6050 &fw_ddb_entry_dma, GFP_KERNEL);
6051 if (!fw_ddb_entry) {
6052 DEBUG2(ql4_printk(KERN_ERR, ha,
6053 "%s: Unable to allocate dma buffer.\n",
6054 __func__));
6055 ret = QLA_ERROR;
6056 return ret;
6057 }
6058
6059 if (qla4xxx_bootdb_by_index(ha, fw_ddb_entry,
6060 fw_ddb_entry_dma, ddb_index)) {
6061 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: No Flash DDB found at "
6062 "index [%d]\n", __func__, ddb_index));
6063 ret = QLA_ERROR;
6064 goto exit_boot_target;
6065 }
6066
6067 /* Update target name and IP from DDB */
6068 memcpy(boot_sess->target_name, fw_ddb_entry->iscsi_name,
6069 min(sizeof(boot_sess->target_name),
6070 sizeof(fw_ddb_entry->iscsi_name)));
6071
6072 options = le16_to_cpu(fw_ddb_entry->options);
6073 if (options & DDB_OPT_IPV6_DEVICE) {
6074 memcpy(&boot_conn->dest_ipaddr.ip_address,
6075 &fw_ddb_entry->ip_addr[0], IPv6_ADDR_LEN);
6076 } else {
6077 boot_conn->dest_ipaddr.ip_type = 0x1;
6078 memcpy(&boot_conn->dest_ipaddr.ip_address,
6079 &fw_ddb_entry->ip_addr[0], IP_ADDR_LEN);
6080 }
6081
6082 boot_conn->dest_port = le16_to_cpu(fw_ddb_entry->port);
6083
6084 /* update chap information */
6085 idx = __le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
6086
6087 if (BIT_7 & le16_to_cpu(fw_ddb_entry->iscsi_options)) {
6088
6089 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting chap\n"));
6090
6091 ret = qla4xxx_get_chap(ha, (char *)&boot_conn->chap.
6092 target_chap_name,
6093 (char *)&boot_conn->chap.target_secret,
6094 idx);
6095 if (ret) {
6096 ql4_printk(KERN_ERR, ha, "Failed to set chap\n");
6097 ret = QLA_ERROR;
6098 goto exit_boot_target;
6099 }
6100
6101 boot_conn->chap.target_chap_name_length = QL4_CHAP_MAX_NAME_LEN;
6102 boot_conn->chap.target_secret_length = QL4_CHAP_MAX_SECRET_LEN;
6103 }
6104
6105 if (BIT_4 & le16_to_cpu(fw_ddb_entry->iscsi_options)) {
6106
6107 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting BIDI chap\n"));
6108
6109 ret = qla4xxx_get_bidi_chap(ha,
6110 (char *)&boot_conn->chap.intr_chap_name,
6111 (char *)&boot_conn->chap.intr_secret);
6112
6113 if (ret) {
6114 ql4_printk(KERN_ERR, ha, "Failed to set BIDI chap\n");
6115 ret = QLA_ERROR;
6116 goto exit_boot_target;
6117 }
6118
6119 boot_conn->chap.intr_chap_name_length = QL4_CHAP_MAX_NAME_LEN;
6120 boot_conn->chap.intr_secret_length = QL4_CHAP_MAX_SECRET_LEN;
6121 }
6122
6123 exit_boot_target:
6124 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
6125 fw_ddb_entry, fw_ddb_entry_dma);
6126 return ret;
6127 }
6128
6129 static int qla4xxx_get_boot_info(struct scsi_qla_host *ha)
6130 {
6131 uint16_t ddb_index[2];
6132 int ret = QLA_ERROR;
6133 int rval;
6134
6135 memset(ddb_index, 0, sizeof(ddb_index));
6136 ddb_index[0] = 0xffff;
6137 ddb_index[1] = 0xffff;
6138 ret = get_fw_boot_info(ha, ddb_index);
6139 if (ret != QLA_SUCCESS) {
6140 DEBUG2(ql4_printk(KERN_INFO, ha,
6141 "%s: No boot target configured.\n", __func__));
6142 return ret;
6143 }
6144
6145 if (ql4xdisablesysfsboot)
6146 return QLA_SUCCESS;
6147
6148 if (ddb_index[0] == 0xffff)
6149 goto sec_target;
6150
6151 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_pri_sess),
6152 ddb_index[0]);
6153 if (rval != QLA_SUCCESS) {
6154 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary boot target not "
6155 "configured\n", __func__));
6156 } else
6157 ret = QLA_SUCCESS;
6158
6159 sec_target:
6160 if (ddb_index[1] == 0xffff)
6161 goto exit_get_boot_info;
6162
6163 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_sec_sess),
6164 ddb_index[1]);
6165 if (rval != QLA_SUCCESS) {
6166 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Secondary boot target not"
6167 " configured\n", __func__));
6168 } else
6169 ret = QLA_SUCCESS;
6170
6171 exit_get_boot_info:
6172 return ret;
6173 }
6174
6175 static int qla4xxx_setup_boot_info(struct scsi_qla_host *ha)
6176 {
6177 struct iscsi_boot_kobj *boot_kobj;
6178
6179 if (qla4xxx_get_boot_info(ha) != QLA_SUCCESS)
6180 return QLA_ERROR;
6181
6182 if (ql4xdisablesysfsboot) {
6183 ql4_printk(KERN_INFO, ha,
6184 "%s: syfsboot disabled - driver will trigger login "
6185 "and publish session for discovery .\n", __func__);
6186 return QLA_SUCCESS;
6187 }
6188
6189
6190 ha->boot_kset = iscsi_boot_create_host_kset(ha->host->host_no);
6191 if (!ha->boot_kset)
6192 goto kset_free;
6193
6194 if (!scsi_host_get(ha->host))
6195 goto kset_free;
6196 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 0, ha,
6197 qla4xxx_show_boot_tgt_pri_info,
6198 qla4xxx_tgt_get_attr_visibility,
6199 qla4xxx_boot_release);
6200 if (!boot_kobj)
6201 goto put_host;
6202
6203 if (!scsi_host_get(ha->host))
6204 goto kset_free;
6205 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 1, ha,
6206 qla4xxx_show_boot_tgt_sec_info,
6207 qla4xxx_tgt_get_attr_visibility,
6208 qla4xxx_boot_release);
6209 if (!boot_kobj)
6210 goto put_host;
6211
6212 if (!scsi_host_get(ha->host))
6213 goto kset_free;
6214 boot_kobj = iscsi_boot_create_initiator(ha->boot_kset, 0, ha,
6215 qla4xxx_show_boot_ini_info,
6216 qla4xxx_ini_get_attr_visibility,
6217 qla4xxx_boot_release);
6218 if (!boot_kobj)
6219 goto put_host;
6220
6221 if (!scsi_host_get(ha->host))
6222 goto kset_free;
6223 boot_kobj = iscsi_boot_create_ethernet(ha->boot_kset, 0, ha,
6224 qla4xxx_show_boot_eth_info,
6225 qla4xxx_eth_get_attr_visibility,
6226 qla4xxx_boot_release);
6227 if (!boot_kobj)
6228 goto put_host;
6229
6230 return QLA_SUCCESS;
6231
6232 put_host:
6233 scsi_host_put(ha->host);
6234 kset_free:
6235 iscsi_boot_destroy_kset(ha->boot_kset);
6236 return -ENOMEM;
6237 }
6238
6239
6240 static void qla4xxx_get_param_ddb(struct ddb_entry *ddb_entry,
6241 struct ql4_tuple_ddb *tddb)
6242 {
6243 struct scsi_qla_host *ha;
6244 struct iscsi_cls_session *cls_sess;
6245 struct iscsi_cls_conn *cls_conn;
6246 struct iscsi_session *sess;
6247 struct iscsi_conn *conn;
6248
6249 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
6250 ha = ddb_entry->ha;
6251 cls_sess = ddb_entry->sess;
6252 sess = cls_sess->dd_data;
6253 cls_conn = ddb_entry->conn;
6254 conn = cls_conn->dd_data;
6255
6256 tddb->tpgt = sess->tpgt;
6257 tddb->port = conn->persistent_port;
6258 strlcpy(tddb->iscsi_name, sess->targetname, ISCSI_NAME_SIZE);
6259 strlcpy(tddb->ip_addr, conn->persistent_address, DDB_IPADDR_LEN);
6260 }
6261
6262 static void qla4xxx_convert_param_ddb(struct dev_db_entry *fw_ddb_entry,
6263 struct ql4_tuple_ddb *tddb,
6264 uint8_t *flash_isid)
6265 {
6266 uint16_t options = 0;
6267
6268 tddb->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
6269 memcpy(&tddb->iscsi_name[0], &fw_ddb_entry->iscsi_name[0],
6270 min(sizeof(tddb->iscsi_name), sizeof(fw_ddb_entry->iscsi_name)));
6271
6272 options = le16_to_cpu(fw_ddb_entry->options);
6273 if (options & DDB_OPT_IPV6_DEVICE)
6274 sprintf(tddb->ip_addr, "%pI6", fw_ddb_entry->ip_addr);
6275 else
6276 sprintf(tddb->ip_addr, "%pI4", fw_ddb_entry->ip_addr);
6277
6278 tddb->port = le16_to_cpu(fw_ddb_entry->port);
6279
6280 if (flash_isid == NULL)
6281 memcpy(&tddb->isid[0], &fw_ddb_entry->isid[0],
6282 sizeof(tddb->isid));
6283 else
6284 memcpy(&tddb->isid[0], &flash_isid[0], sizeof(tddb->isid));
6285 }
6286
6287 static int qla4xxx_compare_tuple_ddb(struct scsi_qla_host *ha,
6288 struct ql4_tuple_ddb *old_tddb,
6289 struct ql4_tuple_ddb *new_tddb,
6290 uint8_t is_isid_compare)
6291 {
6292 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name))
6293 return QLA_ERROR;
6294
6295 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr))
6296 return QLA_ERROR;
6297
6298 if (old_tddb->port != new_tddb->port)
6299 return QLA_ERROR;
6300
6301 /* For multi sessions, driver generates the ISID, so do not compare
6302 * ISID in reset path since it would be a comparison between the
6303 * driver generated ISID and firmware generated ISID. This could
6304 * lead to adding duplicated DDBs in the list as driver generated
6305 * ISID would not match firmware generated ISID.
6306 */
6307 if (is_isid_compare) {
6308 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: old ISID [%02x%02x%02x"
6309 "%02x%02x%02x] New ISID [%02x%02x%02x%02x%02x%02x]\n",
6310 __func__, old_tddb->isid[5], old_tddb->isid[4],
6311 old_tddb->isid[3], old_tddb->isid[2], old_tddb->isid[1],
6312 old_tddb->isid[0], new_tddb->isid[5], new_tddb->isid[4],
6313 new_tddb->isid[3], new_tddb->isid[2], new_tddb->isid[1],
6314 new_tddb->isid[0]));
6315
6316 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0],
6317 sizeof(old_tddb->isid)))
6318 return QLA_ERROR;
6319 }
6320
6321 DEBUG2(ql4_printk(KERN_INFO, ha,
6322 "Match Found, fw[%d,%d,%s,%s], [%d,%d,%s,%s]",
6323 old_tddb->port, old_tddb->tpgt, old_tddb->ip_addr,
6324 old_tddb->iscsi_name, new_tddb->port, new_tddb->tpgt,
6325 new_tddb->ip_addr, new_tddb->iscsi_name));
6326
6327 return QLA_SUCCESS;
6328 }
6329
6330 static int qla4xxx_is_session_exists(struct scsi_qla_host *ha,
6331 struct dev_db_entry *fw_ddb_entry,
6332 uint32_t *index)
6333 {
6334 struct ddb_entry *ddb_entry;
6335 struct ql4_tuple_ddb *fw_tddb = NULL;
6336 struct ql4_tuple_ddb *tmp_tddb = NULL;
6337 int idx;
6338 int ret = QLA_ERROR;
6339
6340 fw_tddb = vzalloc(sizeof(*fw_tddb));
6341 if (!fw_tddb) {
6342 DEBUG2(ql4_printk(KERN_WARNING, ha,
6343 "Memory Allocation failed.\n"));
6344 ret = QLA_SUCCESS;
6345 goto exit_check;
6346 }
6347
6348 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
6349 if (!tmp_tddb) {
6350 DEBUG2(ql4_printk(KERN_WARNING, ha,
6351 "Memory Allocation failed.\n"));
6352 ret = QLA_SUCCESS;
6353 goto exit_check;
6354 }
6355
6356 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL);
6357
6358 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
6359 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
6360 if (ddb_entry == NULL)
6361 continue;
6362
6363 qla4xxx_get_param_ddb(ddb_entry, tmp_tddb);
6364 if (!qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, false)) {
6365 ret = QLA_SUCCESS; /* found */
6366 if (index != NULL)
6367 *index = idx;
6368 goto exit_check;
6369 }
6370 }
6371
6372 exit_check:
6373 if (fw_tddb)
6374 vfree(fw_tddb);
6375 if (tmp_tddb)
6376 vfree(tmp_tddb);
6377 return ret;
6378 }
6379
6380 /**
6381 * qla4xxx_check_existing_isid - check if target with same isid exist
6382 * in target list
6383 * @list_nt: list of target
6384 * @isid: isid to check
6385 *
6386 * This routine return QLA_SUCCESS if target with same isid exist
6387 **/
6388 static int qla4xxx_check_existing_isid(struct list_head *list_nt, uint8_t *isid)
6389 {
6390 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp;
6391 struct dev_db_entry *fw_ddb_entry;
6392
6393 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
6394 fw_ddb_entry = &nt_ddb_idx->fw_ddb;
6395
6396 if (memcmp(&fw_ddb_entry->isid[0], &isid[0],
6397 sizeof(nt_ddb_idx->fw_ddb.isid)) == 0) {
6398 return QLA_SUCCESS;
6399 }
6400 }
6401 return QLA_ERROR;
6402 }
6403
6404 /**
6405 * qla4xxx_update_isid - compare ddbs and updated isid
6406 * @ha: Pointer to host adapter structure.
6407 * @list_nt: list of nt target
6408 * @fw_ddb_entry: firmware ddb entry
6409 *
6410 * This routine update isid if ddbs have same iqn, same isid and
6411 * different IP addr.
6412 * Return QLA_SUCCESS if isid is updated.
6413 **/
6414 static int qla4xxx_update_isid(struct scsi_qla_host *ha,
6415 struct list_head *list_nt,
6416 struct dev_db_entry *fw_ddb_entry)
6417 {
6418 uint8_t base_value, i;
6419
6420 base_value = fw_ddb_entry->isid[1] & 0x1f;
6421 for (i = 0; i < 8; i++) {
6422 fw_ddb_entry->isid[1] = (base_value | (i << 5));
6423 if (qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid))
6424 break;
6425 }
6426
6427 if (!qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid))
6428 return QLA_ERROR;
6429
6430 return QLA_SUCCESS;
6431 }
6432
6433 /**
6434 * qla4xxx_should_update_isid - check if isid need to update
6435 * @ha: Pointer to host adapter structure.
6436 * @old_tddb: ddb tuple
6437 * @new_tddb: ddb tuple
6438 *
6439 * Return QLA_SUCCESS if different IP, different PORT, same iqn,
6440 * same isid
6441 **/
6442 static int qla4xxx_should_update_isid(struct scsi_qla_host *ha,
6443 struct ql4_tuple_ddb *old_tddb,
6444 struct ql4_tuple_ddb *new_tddb)
6445 {
6446 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr) == 0) {
6447 /* Same ip */
6448 if (old_tddb->port == new_tddb->port)
6449 return QLA_ERROR;
6450 }
6451
6452 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name))
6453 /* different iqn */
6454 return QLA_ERROR;
6455
6456 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0],
6457 sizeof(old_tddb->isid)))
6458 /* different isid */
6459 return QLA_ERROR;
6460
6461 return QLA_SUCCESS;
6462 }
6463
6464 /**
6465 * qla4xxx_is_flash_ddb_exists - check if fw_ddb_entry already exists in list_nt
6466 * @ha: Pointer to host adapter structure.
6467 * @list_nt: list of nt target.
6468 * @fw_ddb_entry: firmware ddb entry.
6469 *
6470 * This routine check if fw_ddb_entry already exists in list_nt to avoid
6471 * duplicate ddb in list_nt.
6472 * Return QLA_SUCCESS if duplicate ddb exit in list_nl.
6473 * Note: This function also update isid of DDB if required.
6474 **/
6475
6476 static int qla4xxx_is_flash_ddb_exists(struct scsi_qla_host *ha,
6477 struct list_head *list_nt,
6478 struct dev_db_entry *fw_ddb_entry)
6479 {
6480 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp;
6481 struct ql4_tuple_ddb *fw_tddb = NULL;
6482 struct ql4_tuple_ddb *tmp_tddb = NULL;
6483 int rval, ret = QLA_ERROR;
6484
6485 fw_tddb = vzalloc(sizeof(*fw_tddb));
6486 if (!fw_tddb) {
6487 DEBUG2(ql4_printk(KERN_WARNING, ha,
6488 "Memory Allocation failed.\n"));
6489 ret = QLA_SUCCESS;
6490 goto exit_check;
6491 }
6492
6493 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
6494 if (!tmp_tddb) {
6495 DEBUG2(ql4_printk(KERN_WARNING, ha,
6496 "Memory Allocation failed.\n"));
6497 ret = QLA_SUCCESS;
6498 goto exit_check;
6499 }
6500
6501 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL);
6502
6503 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
6504 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb,
6505 nt_ddb_idx->flash_isid);
6506 ret = qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, true);
6507 /* found duplicate ddb */
6508 if (ret == QLA_SUCCESS)
6509 goto exit_check;
6510 }
6511
6512 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
6513 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb, NULL);
6514
6515 ret = qla4xxx_should_update_isid(ha, tmp_tddb, fw_tddb);
6516 if (ret == QLA_SUCCESS) {
6517 rval = qla4xxx_update_isid(ha, list_nt, fw_ddb_entry);
6518 if (rval == QLA_SUCCESS)
6519 ret = QLA_ERROR;
6520 else
6521 ret = QLA_SUCCESS;
6522
6523 goto exit_check;
6524 }
6525 }
6526
6527 exit_check:
6528 if (fw_tddb)
6529 vfree(fw_tddb);
6530 if (tmp_tddb)
6531 vfree(tmp_tddb);
6532 return ret;
6533 }
6534
6535 static void qla4xxx_free_ddb_list(struct list_head *list_ddb)
6536 {
6537 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
6538
6539 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
6540 list_del_init(&ddb_idx->list);
6541 vfree(ddb_idx);
6542 }
6543 }
6544
6545 static struct iscsi_endpoint *qla4xxx_get_ep_fwdb(struct scsi_qla_host *ha,
6546 struct dev_db_entry *fw_ddb_entry)
6547 {
6548 struct iscsi_endpoint *ep;
6549 struct sockaddr_in *addr;
6550 struct sockaddr_in6 *addr6;
6551 struct sockaddr *t_addr;
6552 struct sockaddr_storage *dst_addr;
6553 char *ip;
6554
6555 /* TODO: need to destroy on unload iscsi_endpoint*/
6556 dst_addr = vmalloc(sizeof(*dst_addr));
6557 if (!dst_addr)
6558 return NULL;
6559
6560 if (fw_ddb_entry->options & DDB_OPT_IPV6_DEVICE) {
6561 t_addr = (struct sockaddr *)dst_addr;
6562 t_addr->sa_family = AF_INET6;
6563 addr6 = (struct sockaddr_in6 *)dst_addr;
6564 ip = (char *)&addr6->sin6_addr;
6565 memcpy(ip, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN);
6566 addr6->sin6_port = htons(le16_to_cpu(fw_ddb_entry->port));
6567
6568 } else {
6569 t_addr = (struct sockaddr *)dst_addr;
6570 t_addr->sa_family = AF_INET;
6571 addr = (struct sockaddr_in *)dst_addr;
6572 ip = (char *)&addr->sin_addr;
6573 memcpy(ip, fw_ddb_entry->ip_addr, IP_ADDR_LEN);
6574 addr->sin_port = htons(le16_to_cpu(fw_ddb_entry->port));
6575 }
6576
6577 ep = qla4xxx_ep_connect(ha->host, (struct sockaddr *)dst_addr, 0);
6578 vfree(dst_addr);
6579 return ep;
6580 }
6581
6582 static int qla4xxx_verify_boot_idx(struct scsi_qla_host *ha, uint16_t idx)
6583 {
6584 if (ql4xdisablesysfsboot)
6585 return QLA_SUCCESS;
6586 if (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx)
6587 return QLA_ERROR;
6588 return QLA_SUCCESS;
6589 }
6590
6591 static void qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha,
6592 struct ddb_entry *ddb_entry,
6593 uint16_t idx)
6594 {
6595 uint16_t def_timeout;
6596
6597 ddb_entry->ddb_type = FLASH_DDB;
6598 ddb_entry->fw_ddb_index = INVALID_ENTRY;
6599 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE;
6600 ddb_entry->ha = ha;
6601 ddb_entry->unblock_sess = qla4xxx_unblock_flash_ddb;
6602 ddb_entry->ddb_change = qla4xxx_flash_ddb_change;
6603 ddb_entry->chap_tbl_idx = INVALID_ENTRY;
6604
6605 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY);
6606 atomic_set(&ddb_entry->relogin_timer, 0);
6607 atomic_set(&ddb_entry->relogin_retry_count, 0);
6608 def_timeout = le16_to_cpu(ddb_entry->fw_ddb_entry.def_timeout);
6609 ddb_entry->default_relogin_timeout =
6610 (def_timeout > LOGIN_TOV) && (def_timeout < LOGIN_TOV * 10) ?
6611 def_timeout : LOGIN_TOV;
6612 ddb_entry->default_time2wait =
6613 le16_to_cpu(ddb_entry->fw_ddb_entry.iscsi_def_time2wait);
6614
6615 if (ql4xdisablesysfsboot &&
6616 (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx))
6617 set_bit(DF_BOOT_TGT, &ddb_entry->flags);
6618 }
6619
6620 static void qla4xxx_wait_for_ip_configuration(struct scsi_qla_host *ha)
6621 {
6622 uint32_t idx = 0;
6623 uint32_t ip_idx[IP_ADDR_COUNT] = {0, 1, 2, 3}; /* 4 IP interfaces */
6624 uint32_t sts[MBOX_REG_COUNT];
6625 uint32_t ip_state;
6626 unsigned long wtime;
6627 int ret;
6628
6629 wtime = jiffies + (HZ * IP_CONFIG_TOV);
6630 do {
6631 for (idx = 0; idx < IP_ADDR_COUNT; idx++) {
6632 if (ip_idx[idx] == -1)
6633 continue;
6634
6635 ret = qla4xxx_get_ip_state(ha, 0, ip_idx[idx], sts);
6636
6637 if (ret == QLA_ERROR) {
6638 ip_idx[idx] = -1;
6639 continue;
6640 }
6641
6642 ip_state = (sts[1] & IP_STATE_MASK) >> IP_STATE_SHIFT;
6643
6644 DEBUG2(ql4_printk(KERN_INFO, ha,
6645 "Waiting for IP state for idx = %d, state = 0x%x\n",
6646 ip_idx[idx], ip_state));
6647 if (ip_state == IP_ADDRSTATE_UNCONFIGURED ||
6648 ip_state == IP_ADDRSTATE_INVALID ||
6649 ip_state == IP_ADDRSTATE_PREFERRED ||
6650 ip_state == IP_ADDRSTATE_DEPRICATED ||
6651 ip_state == IP_ADDRSTATE_DISABLING)
6652 ip_idx[idx] = -1;
6653 }
6654
6655 /* Break if all IP states checked */
6656 if ((ip_idx[0] == -1) &&
6657 (ip_idx[1] == -1) &&
6658 (ip_idx[2] == -1) &&
6659 (ip_idx[3] == -1))
6660 break;
6661 schedule_timeout_uninterruptible(HZ);
6662 } while (time_after(wtime, jiffies));
6663 }
6664
6665 static int qla4xxx_cmp_fw_stentry(struct dev_db_entry *fw_ddb_entry,
6666 struct dev_db_entry *flash_ddb_entry)
6667 {
6668 uint16_t options = 0;
6669 size_t ip_len = IP_ADDR_LEN;
6670
6671 options = le16_to_cpu(fw_ddb_entry->options);
6672 if (options & DDB_OPT_IPV6_DEVICE)
6673 ip_len = IPv6_ADDR_LEN;
6674
6675 if (memcmp(fw_ddb_entry->ip_addr, flash_ddb_entry->ip_addr, ip_len))
6676 return QLA_ERROR;
6677
6678 if (memcmp(&fw_ddb_entry->isid[0], &flash_ddb_entry->isid[0],
6679 sizeof(fw_ddb_entry->isid)))
6680 return QLA_ERROR;
6681
6682 if (memcmp(&fw_ddb_entry->port, &flash_ddb_entry->port,
6683 sizeof(fw_ddb_entry->port)))
6684 return QLA_ERROR;
6685
6686 return QLA_SUCCESS;
6687 }
6688
6689 static int qla4xxx_find_flash_st_idx(struct scsi_qla_host *ha,
6690 struct dev_db_entry *fw_ddb_entry,
6691 uint32_t fw_idx, uint32_t *flash_index)
6692 {
6693 struct dev_db_entry *flash_ddb_entry;
6694 dma_addr_t flash_ddb_entry_dma;
6695 uint32_t idx = 0;
6696 int max_ddbs;
6697 int ret = QLA_ERROR, status;
6698
6699 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
6700 MAX_DEV_DB_ENTRIES;
6701
6702 flash_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
6703 &flash_ddb_entry_dma);
6704 if (flash_ddb_entry == NULL || fw_ddb_entry == NULL) {
6705 ql4_printk(KERN_ERR, ha, "Out of memory\n");
6706 goto exit_find_st_idx;
6707 }
6708
6709 status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry,
6710 flash_ddb_entry_dma, fw_idx);
6711 if (status == QLA_SUCCESS) {
6712 status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry);
6713 if (status == QLA_SUCCESS) {
6714 *flash_index = fw_idx;
6715 ret = QLA_SUCCESS;
6716 goto exit_find_st_idx;
6717 }
6718 }
6719
6720 for (idx = 0; idx < max_ddbs; idx++) {
6721 status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry,
6722 flash_ddb_entry_dma, idx);
6723 if (status == QLA_ERROR)
6724 continue;
6725
6726 status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry);
6727 if (status == QLA_SUCCESS) {
6728 *flash_index = idx;
6729 ret = QLA_SUCCESS;
6730 goto exit_find_st_idx;
6731 }
6732 }
6733
6734 if (idx == max_ddbs)
6735 ql4_printk(KERN_ERR, ha, "Failed to find ST [%d] in flash\n",
6736 fw_idx);
6737
6738 exit_find_st_idx:
6739 if (flash_ddb_entry)
6740 dma_pool_free(ha->fw_ddb_dma_pool, flash_ddb_entry,
6741 flash_ddb_entry_dma);
6742
6743 return ret;
6744 }
6745
6746 static void qla4xxx_build_st_list(struct scsi_qla_host *ha,
6747 struct list_head *list_st)
6748 {
6749 struct qla_ddb_index *st_ddb_idx;
6750 int max_ddbs;
6751 int fw_idx_size;
6752 struct dev_db_entry *fw_ddb_entry;
6753 dma_addr_t fw_ddb_dma;
6754 int ret;
6755 uint32_t idx = 0, next_idx = 0;
6756 uint32_t state = 0, conn_err = 0;
6757 uint32_t flash_index = -1;
6758 uint16_t conn_id = 0;
6759
6760 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
6761 &fw_ddb_dma);
6762 if (fw_ddb_entry == NULL) {
6763 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
6764 goto exit_st_list;
6765 }
6766
6767 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
6768 MAX_DEV_DB_ENTRIES;
6769 fw_idx_size = sizeof(struct qla_ddb_index);
6770
6771 for (idx = 0; idx < max_ddbs; idx = next_idx) {
6772 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
6773 NULL, &next_idx, &state,
6774 &conn_err, NULL, &conn_id);
6775 if (ret == QLA_ERROR)
6776 break;
6777
6778 /* Ignore DDB if invalid state (unassigned) */
6779 if (state == DDB_DS_UNASSIGNED)
6780 goto continue_next_st;
6781
6782 /* Check if ST, add to the list_st */
6783 if (strlen((char *) fw_ddb_entry->iscsi_name) != 0)
6784 goto continue_next_st;
6785
6786 st_ddb_idx = vzalloc(fw_idx_size);
6787 if (!st_ddb_idx)
6788 break;
6789
6790 ret = qla4xxx_find_flash_st_idx(ha, fw_ddb_entry, idx,
6791 &flash_index);
6792 if (ret == QLA_ERROR) {
6793 ql4_printk(KERN_ERR, ha,
6794 "No flash entry for ST at idx [%d]\n", idx);
6795 st_ddb_idx->flash_ddb_idx = idx;
6796 } else {
6797 ql4_printk(KERN_INFO, ha,
6798 "ST at idx [%d] is stored at flash [%d]\n",
6799 idx, flash_index);
6800 st_ddb_idx->flash_ddb_idx = flash_index;
6801 }
6802
6803 st_ddb_idx->fw_ddb_idx = idx;
6804
6805 list_add_tail(&st_ddb_idx->list, list_st);
6806 continue_next_st:
6807 if (next_idx == 0)
6808 break;
6809 }
6810
6811 exit_st_list:
6812 if (fw_ddb_entry)
6813 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
6814 }
6815
6816 /**
6817 * qla4xxx_remove_failed_ddb - Remove inactive or failed ddb from list
6818 * @ha: pointer to adapter structure
6819 * @list_ddb: List from which failed ddb to be removed
6820 *
6821 * Iterate over the list of DDBs and find and remove DDBs that are either in
6822 * no connection active state or failed state
6823 **/
6824 static void qla4xxx_remove_failed_ddb(struct scsi_qla_host *ha,
6825 struct list_head *list_ddb)
6826 {
6827 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
6828 uint32_t next_idx = 0;
6829 uint32_t state = 0, conn_err = 0;
6830 int ret;
6831
6832 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
6833 ret = qla4xxx_get_fwddb_entry(ha, ddb_idx->fw_ddb_idx,
6834 NULL, 0, NULL, &next_idx, &state,
6835 &conn_err, NULL, NULL);
6836 if (ret == QLA_ERROR)
6837 continue;
6838
6839 if (state == DDB_DS_NO_CONNECTION_ACTIVE ||
6840 state == DDB_DS_SESSION_FAILED) {
6841 list_del_init(&ddb_idx->list);
6842 vfree(ddb_idx);
6843 }
6844 }
6845 }
6846
6847 static void qla4xxx_update_sess_disc_idx(struct scsi_qla_host *ha,
6848 struct ddb_entry *ddb_entry,
6849 struct dev_db_entry *fw_ddb_entry)
6850 {
6851 struct iscsi_cls_session *cls_sess;
6852 struct iscsi_session *sess;
6853 uint32_t max_ddbs = 0;
6854 uint16_t ddb_link = -1;
6855
6856 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
6857 MAX_DEV_DB_ENTRIES;
6858
6859 cls_sess = ddb_entry->sess;
6860 sess = cls_sess->dd_data;
6861
6862 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
6863 if (ddb_link < max_ddbs)
6864 sess->discovery_parent_idx = ddb_link;
6865 else
6866 sess->discovery_parent_idx = DDB_NO_LINK;
6867 }
6868
6869 static int qla4xxx_sess_conn_setup(struct scsi_qla_host *ha,
6870 struct dev_db_entry *fw_ddb_entry,
6871 int is_reset, uint16_t idx)
6872 {
6873 struct iscsi_cls_session *cls_sess;
6874 struct iscsi_session *sess;
6875 struct iscsi_cls_conn *cls_conn;
6876 struct iscsi_endpoint *ep;
6877 uint16_t cmds_max = 32;
6878 uint16_t conn_id = 0;
6879 uint32_t initial_cmdsn = 0;
6880 int ret = QLA_SUCCESS;
6881
6882 struct ddb_entry *ddb_entry = NULL;
6883
6884 /* Create session object, with INVALID_ENTRY,
6885 * the targer_id would get set when we issue the login
6886 */
6887 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, ha->host,
6888 cmds_max, sizeof(struct ddb_entry),
6889 sizeof(struct ql4_task_data),
6890 initial_cmdsn, INVALID_ENTRY);
6891 if (!cls_sess) {
6892 ret = QLA_ERROR;
6893 goto exit_setup;
6894 }
6895
6896 /*
6897 * so calling module_put function to decrement the
6898 * reference count.
6899 **/
6900 module_put(qla4xxx_iscsi_transport.owner);
6901 sess = cls_sess->dd_data;
6902 ddb_entry = sess->dd_data;
6903 ddb_entry->sess = cls_sess;
6904
6905 cls_sess->recovery_tmo = ql4xsess_recovery_tmo;
6906 memcpy(&ddb_entry->fw_ddb_entry, fw_ddb_entry,
6907 sizeof(struct dev_db_entry));
6908
6909 qla4xxx_setup_flash_ddb_entry(ha, ddb_entry, idx);
6910
6911 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), conn_id);
6912
6913 if (!cls_conn) {
6914 ret = QLA_ERROR;
6915 goto exit_setup;
6916 }
6917
6918 ddb_entry->conn = cls_conn;
6919
6920 /* Setup ep, for displaying attributes in sysfs */
6921 ep = qla4xxx_get_ep_fwdb(ha, fw_ddb_entry);
6922 if (ep) {
6923 ep->conn = cls_conn;
6924 cls_conn->ep = ep;
6925 } else {
6926 DEBUG2(ql4_printk(KERN_ERR, ha, "Unable to get ep\n"));
6927 ret = QLA_ERROR;
6928 goto exit_setup;
6929 }
6930
6931 /* Update sess/conn params */
6932 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn);
6933 qla4xxx_update_sess_disc_idx(ha, ddb_entry, fw_ddb_entry);
6934
6935 if (is_reset == RESET_ADAPTER) {
6936 iscsi_block_session(cls_sess);
6937 /* Use the relogin path to discover new devices
6938 * by short-circuting the logic of setting
6939 * timer to relogin - instead set the flags
6940 * to initiate login right away.
6941 */
6942 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
6943 set_bit(DF_RELOGIN, &ddb_entry->flags);
6944 }
6945
6946 exit_setup:
6947 return ret;
6948 }
6949
6950 static void qla4xxx_update_fw_ddb_link(struct scsi_qla_host *ha,
6951 struct list_head *list_ddb,
6952 struct dev_db_entry *fw_ddb_entry)
6953 {
6954 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
6955 uint16_t ddb_link;
6956
6957 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
6958
6959 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
6960 if (ddb_idx->fw_ddb_idx == ddb_link) {
6961 DEBUG2(ql4_printk(KERN_INFO, ha,
6962 "Updating NT parent idx from [%d] to [%d]\n",
6963 ddb_link, ddb_idx->flash_ddb_idx));
6964 fw_ddb_entry->ddb_link =
6965 cpu_to_le16(ddb_idx->flash_ddb_idx);
6966 return;
6967 }
6968 }
6969 }
6970
6971 static void qla4xxx_build_nt_list(struct scsi_qla_host *ha,
6972 struct list_head *list_nt,
6973 struct list_head *list_st,
6974 int is_reset)
6975 {
6976 struct dev_db_entry *fw_ddb_entry;
6977 struct ddb_entry *ddb_entry = NULL;
6978 dma_addr_t fw_ddb_dma;
6979 int max_ddbs;
6980 int fw_idx_size;
6981 int ret;
6982 uint32_t idx = 0, next_idx = 0;
6983 uint32_t state = 0, conn_err = 0;
6984 uint32_t ddb_idx = -1;
6985 uint16_t conn_id = 0;
6986 uint16_t ddb_link = -1;
6987 struct qla_ddb_index *nt_ddb_idx;
6988
6989 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
6990 &fw_ddb_dma);
6991 if (fw_ddb_entry == NULL) {
6992 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
6993 goto exit_nt_list;
6994 }
6995 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
6996 MAX_DEV_DB_ENTRIES;
6997 fw_idx_size = sizeof(struct qla_ddb_index);
6998
6999 for (idx = 0; idx < max_ddbs; idx = next_idx) {
7000 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
7001 NULL, &next_idx, &state,
7002 &conn_err, NULL, &conn_id);
7003 if (ret == QLA_ERROR)
7004 break;
7005
7006 if (qla4xxx_verify_boot_idx(ha, idx) != QLA_SUCCESS)
7007 goto continue_next_nt;
7008
7009 /* Check if NT, then add to list it */
7010 if (strlen((char *) fw_ddb_entry->iscsi_name) == 0)
7011 goto continue_next_nt;
7012
7013 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
7014 if (ddb_link < max_ddbs)
7015 qla4xxx_update_fw_ddb_link(ha, list_st, fw_ddb_entry);
7016
7017 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE ||
7018 state == DDB_DS_SESSION_FAILED) &&
7019 (is_reset == INIT_ADAPTER))
7020 goto continue_next_nt;
7021
7022 DEBUG2(ql4_printk(KERN_INFO, ha,
7023 "Adding DDB to session = 0x%x\n", idx));
7024
7025 if (is_reset == INIT_ADAPTER) {
7026 nt_ddb_idx = vmalloc(fw_idx_size);
7027 if (!nt_ddb_idx)
7028 break;
7029
7030 nt_ddb_idx->fw_ddb_idx = idx;
7031
7032 /* Copy original isid as it may get updated in function
7033 * qla4xxx_update_isid(). We need original isid in
7034 * function qla4xxx_compare_tuple_ddb to find duplicate
7035 * target */
7036 memcpy(&nt_ddb_idx->flash_isid[0],
7037 &fw_ddb_entry->isid[0],
7038 sizeof(nt_ddb_idx->flash_isid));
7039
7040 ret = qla4xxx_is_flash_ddb_exists(ha, list_nt,
7041 fw_ddb_entry);
7042 if (ret == QLA_SUCCESS) {
7043 /* free nt_ddb_idx and do not add to list_nt */
7044 vfree(nt_ddb_idx);
7045 goto continue_next_nt;
7046 }
7047
7048 /* Copy updated isid */
7049 memcpy(&nt_ddb_idx->fw_ddb, fw_ddb_entry,
7050 sizeof(struct dev_db_entry));
7051
7052 list_add_tail(&nt_ddb_idx->list, list_nt);
7053 } else if (is_reset == RESET_ADAPTER) {
7054 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry,
7055 &ddb_idx);
7056 if (ret == QLA_SUCCESS) {
7057 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha,
7058 ddb_idx);
7059 if (ddb_entry != NULL)
7060 qla4xxx_update_sess_disc_idx(ha,
7061 ddb_entry,
7062 fw_ddb_entry);
7063 goto continue_next_nt;
7064 }
7065 }
7066
7067 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, is_reset, idx);
7068 if (ret == QLA_ERROR)
7069 goto exit_nt_list;
7070
7071 continue_next_nt:
7072 if (next_idx == 0)
7073 break;
7074 }
7075
7076 exit_nt_list:
7077 if (fw_ddb_entry)
7078 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
7079 }
7080
7081 static void qla4xxx_build_new_nt_list(struct scsi_qla_host *ha,
7082 struct list_head *list_nt,
7083 uint16_t target_id)
7084 {
7085 struct dev_db_entry *fw_ddb_entry;
7086 dma_addr_t fw_ddb_dma;
7087 int max_ddbs;
7088 int fw_idx_size;
7089 int ret;
7090 uint32_t idx = 0, next_idx = 0;
7091 uint32_t state = 0, conn_err = 0;
7092 uint16_t conn_id = 0;
7093 struct qla_ddb_index *nt_ddb_idx;
7094
7095 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
7096 &fw_ddb_dma);
7097 if (fw_ddb_entry == NULL) {
7098 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
7099 goto exit_new_nt_list;
7100 }
7101 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
7102 MAX_DEV_DB_ENTRIES;
7103 fw_idx_size = sizeof(struct qla_ddb_index);
7104
7105 for (idx = 0; idx < max_ddbs; idx = next_idx) {
7106 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
7107 NULL, &next_idx, &state,
7108 &conn_err, NULL, &conn_id);
7109 if (ret == QLA_ERROR)
7110 break;
7111
7112 /* Check if NT, then add it to list */
7113 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0)
7114 goto continue_next_new_nt;
7115
7116 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE))
7117 goto continue_next_new_nt;
7118
7119 DEBUG2(ql4_printk(KERN_INFO, ha,
7120 "Adding DDB to session = 0x%x\n", idx));
7121
7122 nt_ddb_idx = vmalloc(fw_idx_size);
7123 if (!nt_ddb_idx)
7124 break;
7125
7126 nt_ddb_idx->fw_ddb_idx = idx;
7127
7128 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL);
7129 if (ret == QLA_SUCCESS) {
7130 /* free nt_ddb_idx and do not add to list_nt */
7131 vfree(nt_ddb_idx);
7132 goto continue_next_new_nt;
7133 }
7134
7135 if (target_id < max_ddbs)
7136 fw_ddb_entry->ddb_link = cpu_to_le16(target_id);
7137
7138 list_add_tail(&nt_ddb_idx->list, list_nt);
7139
7140 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER,
7141 idx);
7142 if (ret == QLA_ERROR)
7143 goto exit_new_nt_list;
7144
7145 continue_next_new_nt:
7146 if (next_idx == 0)
7147 break;
7148 }
7149
7150 exit_new_nt_list:
7151 if (fw_ddb_entry)
7152 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
7153 }
7154
7155 /**
7156 * qla4xxx_sysfs_ddb_is_non_persistent - check for non-persistence of ddb entry
7157 * @dev: dev associated with the sysfs entry
7158 * @data: pointer to flashnode session object
7159 *
7160 * Returns:
7161 * 1: if flashnode entry is non-persistent
7162 * 0: if flashnode entry is persistent
7163 **/
7164 static int qla4xxx_sysfs_ddb_is_non_persistent(struct device *dev, void *data)
7165 {
7166 struct iscsi_bus_flash_session *fnode_sess;
7167
7168 if (!iscsi_flashnode_bus_match(dev, NULL))
7169 return 0;
7170
7171 fnode_sess = iscsi_dev_to_flash_session(dev);
7172
7173 return (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT);
7174 }
7175
7176 /**
7177 * qla4xxx_sysfs_ddb_tgt_create - Create sysfs entry for target
7178 * @ha: pointer to host
7179 * @fw_ddb_entry: flash ddb data
7180 * @idx: target index
7181 * @user: if set then this call is made from userland else from kernel
7182 *
7183 * Returns:
7184 * On sucess: QLA_SUCCESS
7185 * On failure: QLA_ERROR
7186 *
7187 * This create separate sysfs entries for session and connection attributes of
7188 * the given fw ddb entry.
7189 * If this is invoked as a result of a userspace call then the entry is marked
7190 * as nonpersistent using flash_state field.
7191 **/
7192 static int qla4xxx_sysfs_ddb_tgt_create(struct scsi_qla_host *ha,
7193 struct dev_db_entry *fw_ddb_entry,
7194 uint16_t *idx, int user)
7195 {
7196 struct iscsi_bus_flash_session *fnode_sess = NULL;
7197 struct iscsi_bus_flash_conn *fnode_conn = NULL;
7198 int rc = QLA_ERROR;
7199
7200 fnode_sess = iscsi_create_flashnode_sess(ha->host, *idx,
7201 &qla4xxx_iscsi_transport, 0);
7202 if (!fnode_sess) {
7203 ql4_printk(KERN_ERR, ha,
7204 "%s: Unable to create session sysfs entry for flashnode %d of host%lu\n",
7205 __func__, *idx, ha->host_no);
7206 goto exit_tgt_create;
7207 }
7208
7209 fnode_conn = iscsi_create_flashnode_conn(ha->host, fnode_sess,
7210 &qla4xxx_iscsi_transport, 0);
7211 if (!fnode_conn) {
7212 ql4_printk(KERN_ERR, ha,
7213 "%s: Unable to create conn sysfs entry for flashnode %d of host%lu\n",
7214 __func__, *idx, ha->host_no);
7215 goto free_sess;
7216 }
7217
7218 if (user) {
7219 fnode_sess->flash_state = DEV_DB_NON_PERSISTENT;
7220 } else {
7221 fnode_sess->flash_state = DEV_DB_PERSISTENT;
7222
7223 if (*idx == ha->pri_ddb_idx || *idx == ha->sec_ddb_idx)
7224 fnode_sess->is_boot_target = 1;
7225 else
7226 fnode_sess->is_boot_target = 0;
7227 }
7228
7229 rc = qla4xxx_copy_from_fwddb_param(fnode_sess, fnode_conn,
7230 fw_ddb_entry);
7231
7232 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n",
7233 __func__, fnode_sess->dev.kobj.name);
7234
7235 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n",
7236 __func__, fnode_conn->dev.kobj.name);
7237
7238 return QLA_SUCCESS;
7239
7240 free_sess:
7241 iscsi_destroy_flashnode_sess(fnode_sess);
7242
7243 exit_tgt_create:
7244 return QLA_ERROR;
7245 }
7246
7247 /**
7248 * qla4xxx_sysfs_ddb_add - Add new ddb entry in flash
7249 * @shost: pointer to host
7250 * @buf: type of ddb entry (ipv4/ipv6)
7251 * @len: length of buf
7252 *
7253 * This creates new ddb entry in the flash by finding first free index and
7254 * storing default ddb there. And then create sysfs entry for the new ddb entry.
7255 **/
7256 static int qla4xxx_sysfs_ddb_add(struct Scsi_Host *shost, const char *buf,
7257 int len)
7258 {
7259 struct scsi_qla_host *ha = to_qla_host(shost);
7260 struct dev_db_entry *fw_ddb_entry = NULL;
7261 dma_addr_t fw_ddb_entry_dma;
7262 struct device *dev;
7263 uint16_t idx = 0;
7264 uint16_t max_ddbs = 0;
7265 uint32_t options = 0;
7266 uint32_t rval = QLA_ERROR;
7267
7268 if (strncasecmp(PORTAL_TYPE_IPV4, buf, 4) &&
7269 strncasecmp(PORTAL_TYPE_IPV6, buf, 4)) {
7270 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Invalid portal type\n",
7271 __func__));
7272 goto exit_ddb_add;
7273 }
7274
7275 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES :
7276 MAX_DEV_DB_ENTRIES;
7277
7278 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7279 &fw_ddb_entry_dma, GFP_KERNEL);
7280 if (!fw_ddb_entry) {
7281 DEBUG2(ql4_printk(KERN_ERR, ha,
7282 "%s: Unable to allocate dma buffer\n",
7283 __func__));
7284 goto exit_ddb_add;
7285 }
7286
7287 dev = iscsi_find_flashnode_sess(ha->host, NULL,
7288 qla4xxx_sysfs_ddb_is_non_persistent);
7289 if (dev) {
7290 ql4_printk(KERN_ERR, ha,
7291 "%s: A non-persistent entry %s found\n",
7292 __func__, dev->kobj.name);
7293 put_device(dev);
7294 goto exit_ddb_add;
7295 }
7296
7297 /* Index 0 and 1 are reserved for boot target entries */
7298 for (idx = 2; idx < max_ddbs; idx++) {
7299 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry,
7300 fw_ddb_entry_dma, idx))
7301 break;
7302 }
7303
7304 if (idx == max_ddbs)
7305 goto exit_ddb_add;
7306
7307 if (!strncasecmp("ipv6", buf, 4))
7308 options |= IPV6_DEFAULT_DDB_ENTRY;
7309
7310 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
7311 if (rval == QLA_ERROR)
7312 goto exit_ddb_add;
7313
7314 rval = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 1);
7315
7316 exit_ddb_add:
7317 if (fw_ddb_entry)
7318 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7319 fw_ddb_entry, fw_ddb_entry_dma);
7320 if (rval == QLA_SUCCESS)
7321 return idx;
7322 else
7323 return -EIO;
7324 }
7325
7326 /**
7327 * qla4xxx_sysfs_ddb_apply - write the target ddb contents to Flash
7328 * @fnode_sess: pointer to session attrs of flash ddb entry
7329 * @fnode_conn: pointer to connection attrs of flash ddb entry
7330 *
7331 * This writes the contents of target ddb buffer to Flash with a valid cookie
7332 * value in order to make the ddb entry persistent.
7333 **/
7334 static int qla4xxx_sysfs_ddb_apply(struct iscsi_bus_flash_session *fnode_sess,
7335 struct iscsi_bus_flash_conn *fnode_conn)
7336 {
7337 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7338 struct scsi_qla_host *ha = to_qla_host(shost);
7339 uint32_t dev_db_start_offset = FLASH_OFFSET_DB_INFO;
7340 struct dev_db_entry *fw_ddb_entry = NULL;
7341 dma_addr_t fw_ddb_entry_dma;
7342 uint32_t options = 0;
7343 int rval = 0;
7344
7345 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7346 &fw_ddb_entry_dma, GFP_KERNEL);
7347 if (!fw_ddb_entry) {
7348 DEBUG2(ql4_printk(KERN_ERR, ha,
7349 "%s: Unable to allocate dma buffer\n",
7350 __func__));
7351 rval = -ENOMEM;
7352 goto exit_ddb_apply;
7353 }
7354
7355 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7356 options |= IPV6_DEFAULT_DDB_ENTRY;
7357
7358 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
7359 if (rval == QLA_ERROR)
7360 goto exit_ddb_apply;
7361
7362 dev_db_start_offset += (fnode_sess->target_id *
7363 sizeof(*fw_ddb_entry));
7364
7365 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry);
7366 fw_ddb_entry->cookie = DDB_VALID_COOKIE;
7367
7368 rval = qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset,
7369 sizeof(*fw_ddb_entry), FLASH_OPT_RMW_COMMIT);
7370
7371 if (rval == QLA_SUCCESS) {
7372 fnode_sess->flash_state = DEV_DB_PERSISTENT;
7373 ql4_printk(KERN_INFO, ha,
7374 "%s: flash node %u of host %lu written to flash\n",
7375 __func__, fnode_sess->target_id, ha->host_no);
7376 } else {
7377 rval = -EIO;
7378 ql4_printk(KERN_ERR, ha,
7379 "%s: Error while writing flash node %u of host %lu to flash\n",
7380 __func__, fnode_sess->target_id, ha->host_no);
7381 }
7382
7383 exit_ddb_apply:
7384 if (fw_ddb_entry)
7385 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7386 fw_ddb_entry, fw_ddb_entry_dma);
7387 return rval;
7388 }
7389
7390 static ssize_t qla4xxx_sysfs_ddb_conn_open(struct scsi_qla_host *ha,
7391 struct dev_db_entry *fw_ddb_entry,
7392 uint16_t idx)
7393 {
7394 struct dev_db_entry *ddb_entry = NULL;
7395 dma_addr_t ddb_entry_dma;
7396 unsigned long wtime;
7397 uint32_t mbx_sts = 0;
7398 uint32_t state = 0, conn_err = 0;
7399 uint16_t tmo = 0;
7400 int ret = 0;
7401
7402 ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*ddb_entry),
7403 &ddb_entry_dma, GFP_KERNEL);
7404 if (!ddb_entry) {
7405 DEBUG2(ql4_printk(KERN_ERR, ha,
7406 "%s: Unable to allocate dma buffer\n",
7407 __func__));
7408 return QLA_ERROR;
7409 }
7410
7411 memcpy(ddb_entry, fw_ddb_entry, sizeof(*ddb_entry));
7412
7413 ret = qla4xxx_set_ddb_entry(ha, idx, ddb_entry_dma, &mbx_sts);
7414 if (ret != QLA_SUCCESS) {
7415 DEBUG2(ql4_printk(KERN_ERR, ha,
7416 "%s: Unable to set ddb entry for index %d\n",
7417 __func__, idx));
7418 goto exit_ddb_conn_open;
7419 }
7420
7421 qla4xxx_conn_open(ha, idx);
7422
7423 /* To ensure that sendtargets is done, wait for at least 12 secs */
7424 tmo = ((ha->def_timeout > LOGIN_TOV) &&
7425 (ha->def_timeout < LOGIN_TOV * 10) ?
7426 ha->def_timeout : LOGIN_TOV);
7427
7428 DEBUG2(ql4_printk(KERN_INFO, ha,
7429 "Default time to wait for login to ddb %d\n", tmo));
7430
7431 wtime = jiffies + (HZ * tmo);
7432 do {
7433 ret = qla4xxx_get_fwddb_entry(ha, idx, NULL, 0, NULL,
7434 NULL, &state, &conn_err, NULL,
7435 NULL);
7436 if (ret == QLA_ERROR)
7437 continue;
7438
7439 if (state == DDB_DS_NO_CONNECTION_ACTIVE ||
7440 state == DDB_DS_SESSION_FAILED)
7441 break;
7442
7443 schedule_timeout_uninterruptible(HZ / 10);
7444 } while (time_after(wtime, jiffies));
7445
7446 exit_ddb_conn_open:
7447 if (ddb_entry)
7448 dma_free_coherent(&ha->pdev->dev, sizeof(*ddb_entry),
7449 ddb_entry, ddb_entry_dma);
7450 return ret;
7451 }
7452
7453 static int qla4xxx_ddb_login_st(struct scsi_qla_host *ha,
7454 struct dev_db_entry *fw_ddb_entry,
7455 uint16_t target_id)
7456 {
7457 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
7458 struct list_head list_nt;
7459 uint16_t ddb_index;
7460 int ret = 0;
7461
7462 if (test_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags)) {
7463 ql4_printk(KERN_WARNING, ha,
7464 "%s: A discovery already in progress!\n", __func__);
7465 return QLA_ERROR;
7466 }
7467
7468 INIT_LIST_HEAD(&list_nt);
7469
7470 set_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags);
7471
7472 ret = qla4xxx_get_ddb_index(ha, &ddb_index);
7473 if (ret == QLA_ERROR)
7474 goto exit_login_st_clr_bit;
7475
7476 ret = qla4xxx_sysfs_ddb_conn_open(ha, fw_ddb_entry, ddb_index);
7477 if (ret == QLA_ERROR)
7478 goto exit_login_st;
7479
7480 qla4xxx_build_new_nt_list(ha, &list_nt, target_id);
7481
7482 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, &list_nt, list) {
7483 list_del_init(&ddb_idx->list);
7484 qla4xxx_clear_ddb_entry(ha, ddb_idx->fw_ddb_idx);
7485 vfree(ddb_idx);
7486 }
7487
7488 exit_login_st:
7489 if (qla4xxx_clear_ddb_entry(ha, ddb_index) == QLA_ERROR) {
7490 ql4_printk(KERN_ERR, ha,
7491 "Unable to clear DDB index = 0x%x\n", ddb_index);
7492 }
7493
7494 clear_bit(ddb_index, ha->ddb_idx_map);
7495
7496 exit_login_st_clr_bit:
7497 clear_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags);
7498 return ret;
7499 }
7500
7501 static int qla4xxx_ddb_login_nt(struct scsi_qla_host *ha,
7502 struct dev_db_entry *fw_ddb_entry,
7503 uint16_t idx)
7504 {
7505 int ret = QLA_ERROR;
7506
7507 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL);
7508 if (ret != QLA_SUCCESS)
7509 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER,
7510 idx);
7511 else
7512 ret = -EPERM;
7513
7514 return ret;
7515 }
7516
7517 /**
7518 * qla4xxx_sysfs_ddb_login - Login to the specified target
7519 * @fnode_sess: pointer to session attrs of flash ddb entry
7520 * @fnode_conn: pointer to connection attrs of flash ddb entry
7521 *
7522 * This logs in to the specified target
7523 **/
7524 static int qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess,
7525 struct iscsi_bus_flash_conn *fnode_conn)
7526 {
7527 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7528 struct scsi_qla_host *ha = to_qla_host(shost);
7529 struct dev_db_entry *fw_ddb_entry = NULL;
7530 dma_addr_t fw_ddb_entry_dma;
7531 uint32_t options = 0;
7532 int ret = 0;
7533
7534 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT) {
7535 ql4_printk(KERN_ERR, ha,
7536 "%s: Target info is not persistent\n", __func__);
7537 ret = -EIO;
7538 goto exit_ddb_login;
7539 }
7540
7541 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7542 &fw_ddb_entry_dma, GFP_KERNEL);
7543 if (!fw_ddb_entry) {
7544 DEBUG2(ql4_printk(KERN_ERR, ha,
7545 "%s: Unable to allocate dma buffer\n",
7546 __func__));
7547 ret = -ENOMEM;
7548 goto exit_ddb_login;
7549 }
7550
7551 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7552 options |= IPV6_DEFAULT_DDB_ENTRY;
7553
7554 ret = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
7555 if (ret == QLA_ERROR)
7556 goto exit_ddb_login;
7557
7558 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry);
7559 fw_ddb_entry->cookie = DDB_VALID_COOKIE;
7560
7561 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0)
7562 ret = qla4xxx_ddb_login_st(ha, fw_ddb_entry,
7563 fnode_sess->target_id);
7564 else
7565 ret = qla4xxx_ddb_login_nt(ha, fw_ddb_entry,
7566 fnode_sess->target_id);
7567
7568 if (ret > 0)
7569 ret = -EIO;
7570
7571 exit_ddb_login:
7572 if (fw_ddb_entry)
7573 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7574 fw_ddb_entry, fw_ddb_entry_dma);
7575 return ret;
7576 }
7577
7578 /**
7579 * qla4xxx_sysfs_ddb_logout_sid - Logout session for the specified target
7580 * @cls_sess: pointer to session to be logged out
7581 *
7582 * This performs session log out from the specified target
7583 **/
7584 static int qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess)
7585 {
7586 struct iscsi_session *sess;
7587 struct ddb_entry *ddb_entry = NULL;
7588 struct scsi_qla_host *ha;
7589 struct dev_db_entry *fw_ddb_entry = NULL;
7590 dma_addr_t fw_ddb_entry_dma;
7591 unsigned long flags;
7592 unsigned long wtime;
7593 uint32_t ddb_state;
7594 int options;
7595 int ret = 0;
7596
7597 sess = cls_sess->dd_data;
7598 ddb_entry = sess->dd_data;
7599 ha = ddb_entry->ha;
7600
7601 if (ddb_entry->ddb_type != FLASH_DDB) {
7602 ql4_printk(KERN_ERR, ha, "%s: Not a flash node session\n",
7603 __func__);
7604 ret = -ENXIO;
7605 goto exit_ddb_logout;
7606 }
7607
7608 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) {
7609 ql4_printk(KERN_ERR, ha,
7610 "%s: Logout from boot target entry is not permitted.\n",
7611 __func__);
7612 ret = -EPERM;
7613 goto exit_ddb_logout;
7614 }
7615
7616 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7617 &fw_ddb_entry_dma, GFP_KERNEL);
7618 if (!fw_ddb_entry) {
7619 ql4_printk(KERN_ERR, ha,
7620 "%s: Unable to allocate dma buffer\n", __func__);
7621 ret = -ENOMEM;
7622 goto exit_ddb_logout;
7623 }
7624
7625 if (test_and_set_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags))
7626 goto ddb_logout_init;
7627
7628 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
7629 fw_ddb_entry, fw_ddb_entry_dma,
7630 NULL, NULL, &ddb_state, NULL,
7631 NULL, NULL);
7632 if (ret == QLA_ERROR)
7633 goto ddb_logout_init;
7634
7635 if (ddb_state == DDB_DS_SESSION_ACTIVE)
7636 goto ddb_logout_init;
7637
7638 /* wait until next relogin is triggered using DF_RELOGIN and
7639 * clear DF_RELOGIN to avoid invocation of further relogin
7640 */
7641 wtime = jiffies + (HZ * RELOGIN_TOV);
7642 do {
7643 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags))
7644 goto ddb_logout_init;
7645
7646 schedule_timeout_uninterruptible(HZ);
7647 } while ((time_after(wtime, jiffies)));
7648
7649 ddb_logout_init:
7650 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY);
7651 atomic_set(&ddb_entry->relogin_timer, 0);
7652
7653 options = LOGOUT_OPTION_CLOSE_SESSION;
7654 qla4xxx_session_logout_ddb(ha, ddb_entry, options);
7655
7656 memset(fw_ddb_entry, 0, sizeof(*fw_ddb_entry));
7657 wtime = jiffies + (HZ * LOGOUT_TOV);
7658 do {
7659 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
7660 fw_ddb_entry, fw_ddb_entry_dma,
7661 NULL, NULL, &ddb_state, NULL,
7662 NULL, NULL);
7663 if (ret == QLA_ERROR)
7664 goto ddb_logout_clr_sess;
7665
7666 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) ||
7667 (ddb_state == DDB_DS_SESSION_FAILED))
7668 goto ddb_logout_clr_sess;
7669
7670 schedule_timeout_uninterruptible(HZ);
7671 } while ((time_after(wtime, jiffies)));
7672
7673 ddb_logout_clr_sess:
7674 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
7675 /*
7676 * we have decremented the reference count of the driver
7677 * when we setup the session to have the driver unload
7678 * to be seamless without actually destroying the
7679 * session
7680 **/
7681 try_module_get(qla4xxx_iscsi_transport.owner);
7682 iscsi_destroy_endpoint(ddb_entry->conn->ep);
7683
7684 spin_lock_irqsave(&ha->hardware_lock, flags);
7685 qla4xxx_free_ddb(ha, ddb_entry);
7686 clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map);
7687 spin_unlock_irqrestore(&ha->hardware_lock, flags);
7688
7689 iscsi_session_teardown(ddb_entry->sess);
7690
7691 clear_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags);
7692 ret = QLA_SUCCESS;
7693
7694 exit_ddb_logout:
7695 if (fw_ddb_entry)
7696 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7697 fw_ddb_entry, fw_ddb_entry_dma);
7698 return ret;
7699 }
7700
7701 /**
7702 * qla4xxx_sysfs_ddb_logout - Logout from the specified target
7703 * @fnode_sess: pointer to session attrs of flash ddb entry
7704 * @fnode_conn: pointer to connection attrs of flash ddb entry
7705 *
7706 * This performs log out from the specified target
7707 **/
7708 static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess,
7709 struct iscsi_bus_flash_conn *fnode_conn)
7710 {
7711 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7712 struct scsi_qla_host *ha = to_qla_host(shost);
7713 struct ql4_tuple_ddb *flash_tddb = NULL;
7714 struct ql4_tuple_ddb *tmp_tddb = NULL;
7715 struct dev_db_entry *fw_ddb_entry = NULL;
7716 struct ddb_entry *ddb_entry = NULL;
7717 dma_addr_t fw_ddb_dma;
7718 uint32_t next_idx = 0;
7719 uint32_t state = 0, conn_err = 0;
7720 uint16_t conn_id = 0;
7721 int idx, index;
7722 int status, ret = 0;
7723
7724 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
7725 &fw_ddb_dma);
7726 if (fw_ddb_entry == NULL) {
7727 ql4_printk(KERN_ERR, ha, "%s:Out of memory\n", __func__);
7728 ret = -ENOMEM;
7729 goto exit_ddb_logout;
7730 }
7731
7732 flash_tddb = vzalloc(sizeof(*flash_tddb));
7733 if (!flash_tddb) {
7734 ql4_printk(KERN_WARNING, ha,
7735 "%s:Memory Allocation failed.\n", __func__);
7736 ret = -ENOMEM;
7737 goto exit_ddb_logout;
7738 }
7739
7740 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
7741 if (!tmp_tddb) {
7742 ql4_printk(KERN_WARNING, ha,
7743 "%s:Memory Allocation failed.\n", __func__);
7744 ret = -ENOMEM;
7745 goto exit_ddb_logout;
7746 }
7747
7748 if (!fnode_sess->targetname) {
7749 ql4_printk(KERN_ERR, ha,
7750 "%s:Cannot logout from SendTarget entry\n",
7751 __func__);
7752 ret = -EPERM;
7753 goto exit_ddb_logout;
7754 }
7755
7756 if (fnode_sess->is_boot_target) {
7757 ql4_printk(KERN_ERR, ha,
7758 "%s: Logout from boot target entry is not permitted.\n",
7759 __func__);
7760 ret = -EPERM;
7761 goto exit_ddb_logout;
7762 }
7763
7764 strlcpy(flash_tddb->iscsi_name, fnode_sess->targetname,
7765 ISCSI_NAME_SIZE);
7766
7767 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7768 sprintf(flash_tddb->ip_addr, "%pI6", fnode_conn->ipaddress);
7769 else
7770 sprintf(flash_tddb->ip_addr, "%pI4", fnode_conn->ipaddress);
7771
7772 flash_tddb->tpgt = fnode_sess->tpgt;
7773 flash_tddb->port = fnode_conn->port;
7774
7775 COPY_ISID(flash_tddb->isid, fnode_sess->isid);
7776
7777 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
7778 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
7779 if (ddb_entry == NULL)
7780 continue;
7781
7782 if (ddb_entry->ddb_type != FLASH_DDB)
7783 continue;
7784
7785 index = ddb_entry->sess->target_id;
7786 status = qla4xxx_get_fwddb_entry(ha, index, fw_ddb_entry,
7787 fw_ddb_dma, NULL, &next_idx,
7788 &state, &conn_err, NULL,
7789 &conn_id);
7790 if (status == QLA_ERROR) {
7791 ret = -ENOMEM;
7792 break;
7793 }
7794
7795 qla4xxx_convert_param_ddb(fw_ddb_entry, tmp_tddb, NULL);
7796
7797 status = qla4xxx_compare_tuple_ddb(ha, flash_tddb, tmp_tddb,
7798 true);
7799 if (status == QLA_SUCCESS) {
7800 ret = qla4xxx_sysfs_ddb_logout_sid(ddb_entry->sess);
7801 break;
7802 }
7803 }
7804
7805 if (idx == MAX_DDB_ENTRIES)
7806 ret = -ESRCH;
7807
7808 exit_ddb_logout:
7809 if (flash_tddb)
7810 vfree(flash_tddb);
7811 if (tmp_tddb)
7812 vfree(tmp_tddb);
7813 if (fw_ddb_entry)
7814 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
7815
7816 return ret;
7817 }
7818
7819 static int
7820 qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session *fnode_sess,
7821 int param, char *buf)
7822 {
7823 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7824 struct scsi_qla_host *ha = to_qla_host(shost);
7825 struct iscsi_bus_flash_conn *fnode_conn;
7826 struct ql4_chap_table chap_tbl;
7827 struct device *dev;
7828 int parent_type;
7829 int rc = 0;
7830
7831 dev = iscsi_find_flashnode_conn(fnode_sess);
7832 if (!dev)
7833 return -EIO;
7834
7835 fnode_conn = iscsi_dev_to_flash_conn(dev);
7836
7837 switch (param) {
7838 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6:
7839 rc = sprintf(buf, "%u\n", fnode_conn->is_fw_assigned_ipv6);
7840 break;
7841 case ISCSI_FLASHNODE_PORTAL_TYPE:
7842 rc = sprintf(buf, "%s\n", fnode_sess->portal_type);
7843 break;
7844 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE:
7845 rc = sprintf(buf, "%u\n", fnode_sess->auto_snd_tgt_disable);
7846 break;
7847 case ISCSI_FLASHNODE_DISCOVERY_SESS:
7848 rc = sprintf(buf, "%u\n", fnode_sess->discovery_sess);
7849 break;
7850 case ISCSI_FLASHNODE_ENTRY_EN:
7851 rc = sprintf(buf, "%u\n", fnode_sess->entry_state);
7852 break;
7853 case ISCSI_FLASHNODE_HDR_DGST_EN:
7854 rc = sprintf(buf, "%u\n", fnode_conn->hdrdgst_en);
7855 break;
7856 case ISCSI_FLASHNODE_DATA_DGST_EN:
7857 rc = sprintf(buf, "%u\n", fnode_conn->datadgst_en);
7858 break;
7859 case ISCSI_FLASHNODE_IMM_DATA_EN:
7860 rc = sprintf(buf, "%u\n", fnode_sess->imm_data_en);
7861 break;
7862 case ISCSI_FLASHNODE_INITIAL_R2T_EN:
7863 rc = sprintf(buf, "%u\n", fnode_sess->initial_r2t_en);
7864 break;
7865 case ISCSI_FLASHNODE_DATASEQ_INORDER:
7866 rc = sprintf(buf, "%u\n", fnode_sess->dataseq_inorder_en);
7867 break;
7868 case ISCSI_FLASHNODE_PDU_INORDER:
7869 rc = sprintf(buf, "%u\n", fnode_sess->pdu_inorder_en);
7870 break;
7871 case ISCSI_FLASHNODE_CHAP_AUTH_EN:
7872 rc = sprintf(buf, "%u\n", fnode_sess->chap_auth_en);
7873 break;
7874 case ISCSI_FLASHNODE_SNACK_REQ_EN:
7875 rc = sprintf(buf, "%u\n", fnode_conn->snack_req_en);
7876 break;
7877 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN:
7878 rc = sprintf(buf, "%u\n", fnode_sess->discovery_logout_en);
7879 break;
7880 case ISCSI_FLASHNODE_BIDI_CHAP_EN:
7881 rc = sprintf(buf, "%u\n", fnode_sess->bidi_chap_en);
7882 break;
7883 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL:
7884 rc = sprintf(buf, "%u\n", fnode_sess->discovery_auth_optional);
7885 break;
7886 case ISCSI_FLASHNODE_ERL:
7887 rc = sprintf(buf, "%u\n", fnode_sess->erl);
7888 break;
7889 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT:
7890 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_stat);
7891 break;
7892 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE:
7893 rc = sprintf(buf, "%u\n", fnode_conn->tcp_nagle_disable);
7894 break;
7895 case ISCSI_FLASHNODE_TCP_WSF_DISABLE:
7896 rc = sprintf(buf, "%u\n", fnode_conn->tcp_wsf_disable);
7897 break;
7898 case ISCSI_FLASHNODE_TCP_TIMER_SCALE:
7899 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timer_scale);
7900 break;
7901 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN:
7902 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_en);
7903 break;
7904 case ISCSI_FLASHNODE_IP_FRAG_DISABLE:
7905 rc = sprintf(buf, "%u\n", fnode_conn->fragment_disable);
7906 break;
7907 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH:
7908 rc = sprintf(buf, "%u\n", fnode_conn->max_recv_dlength);
7909 break;
7910 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH:
7911 rc = sprintf(buf, "%u\n", fnode_conn->max_xmit_dlength);
7912 break;
7913 case ISCSI_FLASHNODE_FIRST_BURST:
7914 rc = sprintf(buf, "%u\n", fnode_sess->first_burst);
7915 break;
7916 case ISCSI_FLASHNODE_DEF_TIME2WAIT:
7917 rc = sprintf(buf, "%u\n", fnode_sess->time2wait);
7918 break;
7919 case ISCSI_FLASHNODE_DEF_TIME2RETAIN:
7920 rc = sprintf(buf, "%u\n", fnode_sess->time2retain);
7921 break;
7922 case ISCSI_FLASHNODE_MAX_R2T:
7923 rc = sprintf(buf, "%u\n", fnode_sess->max_r2t);
7924 break;
7925 case ISCSI_FLASHNODE_KEEPALIVE_TMO:
7926 rc = sprintf(buf, "%u\n", fnode_conn->keepalive_timeout);
7927 break;
7928 case ISCSI_FLASHNODE_ISID:
7929 rc = sprintf(buf, "%02x%02x%02x%02x%02x%02x\n",
7930 fnode_sess->isid[0], fnode_sess->isid[1],
7931 fnode_sess->isid[2], fnode_sess->isid[3],
7932 fnode_sess->isid[4], fnode_sess->isid[5]);
7933 break;
7934 case ISCSI_FLASHNODE_TSID:
7935 rc = sprintf(buf, "%u\n", fnode_sess->tsid);
7936 break;
7937 case ISCSI_FLASHNODE_PORT:
7938 rc = sprintf(buf, "%d\n", fnode_conn->port);
7939 break;
7940 case ISCSI_FLASHNODE_MAX_BURST:
7941 rc = sprintf(buf, "%u\n", fnode_sess->max_burst);
7942 break;
7943 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO:
7944 rc = sprintf(buf, "%u\n",
7945 fnode_sess->default_taskmgmt_timeout);
7946 break;
7947 case ISCSI_FLASHNODE_IPADDR:
7948 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7949 rc = sprintf(buf, "%pI6\n", fnode_conn->ipaddress);
7950 else
7951 rc = sprintf(buf, "%pI4\n", fnode_conn->ipaddress);
7952 break;
7953 case ISCSI_FLASHNODE_ALIAS:
7954 if (fnode_sess->targetalias)
7955 rc = sprintf(buf, "%s\n", fnode_sess->targetalias);
7956 else
7957 rc = sprintf(buf, "\n");
7958 break;
7959 case ISCSI_FLASHNODE_REDIRECT_IPADDR:
7960 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7961 rc = sprintf(buf, "%pI6\n",
7962 fnode_conn->redirect_ipaddr);
7963 else
7964 rc = sprintf(buf, "%pI4\n",
7965 fnode_conn->redirect_ipaddr);
7966 break;
7967 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE:
7968 rc = sprintf(buf, "%u\n", fnode_conn->max_segment_size);
7969 break;
7970 case ISCSI_FLASHNODE_LOCAL_PORT:
7971 rc = sprintf(buf, "%u\n", fnode_conn->local_port);
7972 break;
7973 case ISCSI_FLASHNODE_IPV4_TOS:
7974 rc = sprintf(buf, "%u\n", fnode_conn->ipv4_tos);
7975 break;
7976 case ISCSI_FLASHNODE_IPV6_TC:
7977 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7978 rc = sprintf(buf, "%u\n",
7979 fnode_conn->ipv6_traffic_class);
7980 else
7981 rc = sprintf(buf, "\n");
7982 break;
7983 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL:
7984 rc = sprintf(buf, "%u\n", fnode_conn->ipv6_flow_label);
7985 break;
7986 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6:
7987 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7988 rc = sprintf(buf, "%pI6\n",
7989 fnode_conn->link_local_ipv6_addr);
7990 else
7991 rc = sprintf(buf, "\n");
7992 break;
7993 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX:
7994 rc = sprintf(buf, "%u\n", fnode_sess->discovery_parent_idx);
7995 break;
7996 case ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE:
7997 if (fnode_sess->discovery_parent_type == DDB_ISNS)
7998 parent_type = ISCSI_DISC_PARENT_ISNS;
7999 else if (fnode_sess->discovery_parent_type == DDB_NO_LINK)
8000 parent_type = ISCSI_DISC_PARENT_UNKNOWN;
8001 else if (fnode_sess->discovery_parent_type < MAX_DDB_ENTRIES)
8002 parent_type = ISCSI_DISC_PARENT_SENDTGT;
8003 else
8004 parent_type = ISCSI_DISC_PARENT_UNKNOWN;
8005
8006 rc = sprintf(buf, "%s\n",
8007 iscsi_get_discovery_parent_name(parent_type));
8008 break;
8009 case ISCSI_FLASHNODE_NAME:
8010 if (fnode_sess->targetname)
8011 rc = sprintf(buf, "%s\n", fnode_sess->targetname);
8012 else
8013 rc = sprintf(buf, "\n");
8014 break;
8015 case ISCSI_FLASHNODE_TPGT:
8016 rc = sprintf(buf, "%u\n", fnode_sess->tpgt);
8017 break;
8018 case ISCSI_FLASHNODE_TCP_XMIT_WSF:
8019 rc = sprintf(buf, "%u\n", fnode_conn->tcp_xmit_wsf);
8020 break;
8021 case ISCSI_FLASHNODE_TCP_RECV_WSF:
8022 rc = sprintf(buf, "%u\n", fnode_conn->tcp_recv_wsf);
8023 break;
8024 case ISCSI_FLASHNODE_CHAP_OUT_IDX:
8025 rc = sprintf(buf, "%u\n", fnode_sess->chap_out_idx);
8026 break;
8027 case ISCSI_FLASHNODE_USERNAME:
8028 if (fnode_sess->chap_auth_en) {
8029 qla4xxx_get_uni_chap_at_index(ha,
8030 chap_tbl.name,
8031 chap_tbl.secret,
8032 fnode_sess->chap_out_idx);
8033 rc = sprintf(buf, "%s\n", chap_tbl.name);
8034 } else {
8035 rc = sprintf(buf, "\n");
8036 }
8037 break;
8038 case ISCSI_FLASHNODE_PASSWORD:
8039 if (fnode_sess->chap_auth_en) {
8040 qla4xxx_get_uni_chap_at_index(ha,
8041 chap_tbl.name,
8042 chap_tbl.secret,
8043 fnode_sess->chap_out_idx);
8044 rc = sprintf(buf, "%s\n", chap_tbl.secret);
8045 } else {
8046 rc = sprintf(buf, "\n");
8047 }
8048 break;
8049 case ISCSI_FLASHNODE_STATSN:
8050 rc = sprintf(buf, "%u\n", fnode_conn->statsn);
8051 break;
8052 case ISCSI_FLASHNODE_EXP_STATSN:
8053 rc = sprintf(buf, "%u\n", fnode_conn->exp_statsn);
8054 break;
8055 case ISCSI_FLASHNODE_IS_BOOT_TGT:
8056 rc = sprintf(buf, "%u\n", fnode_sess->is_boot_target);
8057 break;
8058 default:
8059 rc = -ENOSYS;
8060 break;
8061 }
8062
8063 put_device(dev);
8064 return rc;
8065 }
8066
8067 /**
8068 * qla4xxx_sysfs_ddb_set_param - Set parameter for firmware DDB entry
8069 * @fnode_sess: pointer to session attrs of flash ddb entry
8070 * @fnode_conn: pointer to connection attrs of flash ddb entry
8071 * @data: Parameters and their values to update
8072 * @len: len of data
8073 *
8074 * This sets the parameter of flash ddb entry and writes them to flash
8075 **/
8076 static int
8077 qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess,
8078 struct iscsi_bus_flash_conn *fnode_conn,
8079 void *data, int len)
8080 {
8081 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
8082 struct scsi_qla_host *ha = to_qla_host(shost);
8083 struct iscsi_flashnode_param_info *fnode_param;
8084 struct ql4_chap_table chap_tbl;
8085 struct nlattr *attr;
8086 uint16_t chap_out_idx = INVALID_ENTRY;
8087 int rc = QLA_ERROR;
8088 uint32_t rem = len;
8089
8090 memset((void *)&chap_tbl, 0, sizeof(chap_tbl));
8091 nla_for_each_attr(attr, data, len, rem) {
8092 fnode_param = nla_data(attr);
8093
8094 switch (fnode_param->param) {
8095 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6:
8096 fnode_conn->is_fw_assigned_ipv6 = fnode_param->value[0];
8097 break;
8098 case ISCSI_FLASHNODE_PORTAL_TYPE:
8099 memcpy(fnode_sess->portal_type, fnode_param->value,
8100 strlen(fnode_sess->portal_type));
8101 break;
8102 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE:
8103 fnode_sess->auto_snd_tgt_disable =
8104 fnode_param->value[0];
8105 break;
8106 case ISCSI_FLASHNODE_DISCOVERY_SESS:
8107 fnode_sess->discovery_sess = fnode_param->value[0];
8108 break;
8109 case ISCSI_FLASHNODE_ENTRY_EN:
8110 fnode_sess->entry_state = fnode_param->value[0];
8111 break;
8112 case ISCSI_FLASHNODE_HDR_DGST_EN:
8113 fnode_conn->hdrdgst_en = fnode_param->value[0];
8114 break;
8115 case ISCSI_FLASHNODE_DATA_DGST_EN:
8116 fnode_conn->datadgst_en = fnode_param->value[0];
8117 break;
8118 case ISCSI_FLASHNODE_IMM_DATA_EN:
8119 fnode_sess->imm_data_en = fnode_param->value[0];
8120 break;
8121 case ISCSI_FLASHNODE_INITIAL_R2T_EN:
8122 fnode_sess->initial_r2t_en = fnode_param->value[0];
8123 break;
8124 case ISCSI_FLASHNODE_DATASEQ_INORDER:
8125 fnode_sess->dataseq_inorder_en = fnode_param->value[0];
8126 break;
8127 case ISCSI_FLASHNODE_PDU_INORDER:
8128 fnode_sess->pdu_inorder_en = fnode_param->value[0];
8129 break;
8130 case ISCSI_FLASHNODE_CHAP_AUTH_EN:
8131 fnode_sess->chap_auth_en = fnode_param->value[0];
8132 /* Invalidate chap index if chap auth is disabled */
8133 if (!fnode_sess->chap_auth_en)
8134 fnode_sess->chap_out_idx = INVALID_ENTRY;
8135
8136 break;
8137 case ISCSI_FLASHNODE_SNACK_REQ_EN:
8138 fnode_conn->snack_req_en = fnode_param->value[0];
8139 break;
8140 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN:
8141 fnode_sess->discovery_logout_en = fnode_param->value[0];
8142 break;
8143 case ISCSI_FLASHNODE_BIDI_CHAP_EN:
8144 fnode_sess->bidi_chap_en = fnode_param->value[0];
8145 break;
8146 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL:
8147 fnode_sess->discovery_auth_optional =
8148 fnode_param->value[0];
8149 break;
8150 case ISCSI_FLASHNODE_ERL:
8151 fnode_sess->erl = fnode_param->value[0];
8152 break;
8153 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT:
8154 fnode_conn->tcp_timestamp_stat = fnode_param->value[0];
8155 break;
8156 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE:
8157 fnode_conn->tcp_nagle_disable = fnode_param->value[0];
8158 break;
8159 case ISCSI_FLASHNODE_TCP_WSF_DISABLE:
8160 fnode_conn->tcp_wsf_disable = fnode_param->value[0];
8161 break;
8162 case ISCSI_FLASHNODE_TCP_TIMER_SCALE:
8163 fnode_conn->tcp_timer_scale = fnode_param->value[0];
8164 break;
8165 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN:
8166 fnode_conn->tcp_timestamp_en = fnode_param->value[0];
8167 break;
8168 case ISCSI_FLASHNODE_IP_FRAG_DISABLE:
8169 fnode_conn->fragment_disable = fnode_param->value[0];
8170 break;
8171 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH:
8172 fnode_conn->max_recv_dlength =
8173 *(unsigned *)fnode_param->value;
8174 break;
8175 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH:
8176 fnode_conn->max_xmit_dlength =
8177 *(unsigned *)fnode_param->value;
8178 break;
8179 case ISCSI_FLASHNODE_FIRST_BURST:
8180 fnode_sess->first_burst =
8181 *(unsigned *)fnode_param->value;
8182 break;
8183 case ISCSI_FLASHNODE_DEF_TIME2WAIT:
8184 fnode_sess->time2wait = *(uint16_t *)fnode_param->value;
8185 break;
8186 case ISCSI_FLASHNODE_DEF_TIME2RETAIN:
8187 fnode_sess->time2retain =
8188 *(uint16_t *)fnode_param->value;
8189 break;
8190 case ISCSI_FLASHNODE_MAX_R2T:
8191 fnode_sess->max_r2t =
8192 *(uint16_t *)fnode_param->value;
8193 break;
8194 case ISCSI_FLASHNODE_KEEPALIVE_TMO:
8195 fnode_conn->keepalive_timeout =
8196 *(uint16_t *)fnode_param->value;
8197 break;
8198 case ISCSI_FLASHNODE_ISID:
8199 memcpy(fnode_sess->isid, fnode_param->value,
8200 sizeof(fnode_sess->isid));
8201 break;
8202 case ISCSI_FLASHNODE_TSID:
8203 fnode_sess->tsid = *(uint16_t *)fnode_param->value;
8204 break;
8205 case ISCSI_FLASHNODE_PORT:
8206 fnode_conn->port = *(uint16_t *)fnode_param->value;
8207 break;
8208 case ISCSI_FLASHNODE_MAX_BURST:
8209 fnode_sess->max_burst = *(unsigned *)fnode_param->value;
8210 break;
8211 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO:
8212 fnode_sess->default_taskmgmt_timeout =
8213 *(uint16_t *)fnode_param->value;
8214 break;
8215 case ISCSI_FLASHNODE_IPADDR:
8216 memcpy(fnode_conn->ipaddress, fnode_param->value,
8217 IPv6_ADDR_LEN);
8218 break;
8219 case ISCSI_FLASHNODE_ALIAS:
8220 rc = iscsi_switch_str_param(&fnode_sess->targetalias,
8221 (char *)fnode_param->value);
8222 break;
8223 case ISCSI_FLASHNODE_REDIRECT_IPADDR:
8224 memcpy(fnode_conn->redirect_ipaddr, fnode_param->value,
8225 IPv6_ADDR_LEN);
8226 break;
8227 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE:
8228 fnode_conn->max_segment_size =
8229 *(unsigned *)fnode_param->value;
8230 break;
8231 case ISCSI_FLASHNODE_LOCAL_PORT:
8232 fnode_conn->local_port =
8233 *(uint16_t *)fnode_param->value;
8234 break;
8235 case ISCSI_FLASHNODE_IPV4_TOS:
8236 fnode_conn->ipv4_tos = fnode_param->value[0];
8237 break;
8238 case ISCSI_FLASHNODE_IPV6_TC:
8239 fnode_conn->ipv6_traffic_class = fnode_param->value[0];
8240 break;
8241 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL:
8242 fnode_conn->ipv6_flow_label = fnode_param->value[0];
8243 break;
8244 case ISCSI_FLASHNODE_NAME:
8245 rc = iscsi_switch_str_param(&fnode_sess->targetname,
8246 (char *)fnode_param->value);
8247 break;
8248 case ISCSI_FLASHNODE_TPGT:
8249 fnode_sess->tpgt = *(uint16_t *)fnode_param->value;
8250 break;
8251 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6:
8252 memcpy(fnode_conn->link_local_ipv6_addr,
8253 fnode_param->value, IPv6_ADDR_LEN);
8254 break;
8255 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX:
8256 fnode_sess->discovery_parent_idx =
8257 *(uint16_t *)fnode_param->value;
8258 break;
8259 case ISCSI_FLASHNODE_TCP_XMIT_WSF:
8260 fnode_conn->tcp_xmit_wsf =
8261 *(uint8_t *)fnode_param->value;
8262 break;
8263 case ISCSI_FLASHNODE_TCP_RECV_WSF:
8264 fnode_conn->tcp_recv_wsf =
8265 *(uint8_t *)fnode_param->value;
8266 break;
8267 case ISCSI_FLASHNODE_STATSN:
8268 fnode_conn->statsn = *(uint32_t *)fnode_param->value;
8269 break;
8270 case ISCSI_FLASHNODE_EXP_STATSN:
8271 fnode_conn->exp_statsn =
8272 *(uint32_t *)fnode_param->value;
8273 break;
8274 case ISCSI_FLASHNODE_CHAP_OUT_IDX:
8275 chap_out_idx = *(uint16_t *)fnode_param->value;
8276 if (!qla4xxx_get_uni_chap_at_index(ha,
8277 chap_tbl.name,
8278 chap_tbl.secret,
8279 chap_out_idx)) {
8280 fnode_sess->chap_out_idx = chap_out_idx;
8281 /* Enable chap auth if chap index is valid */
8282 fnode_sess->chap_auth_en = QL4_PARAM_ENABLE;
8283 }
8284 break;
8285 default:
8286 ql4_printk(KERN_ERR, ha,
8287 "%s: No such sysfs attribute\n", __func__);
8288 rc = -ENOSYS;
8289 goto exit_set_param;
8290 }
8291 }
8292
8293 rc = qla4xxx_sysfs_ddb_apply(fnode_sess, fnode_conn);
8294
8295 exit_set_param:
8296 return rc;
8297 }
8298
8299 /**
8300 * qla4xxx_sysfs_ddb_delete - Delete firmware DDB entry
8301 * @fnode_sess: pointer to session attrs of flash ddb entry
8302 *
8303 * This invalidates the flash ddb entry at the given index
8304 **/
8305 static int qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess)
8306 {
8307 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
8308 struct scsi_qla_host *ha = to_qla_host(shost);
8309 uint32_t dev_db_start_offset;
8310 uint32_t dev_db_end_offset;
8311 struct dev_db_entry *fw_ddb_entry = NULL;
8312 dma_addr_t fw_ddb_entry_dma;
8313 uint16_t *ddb_cookie = NULL;
8314 size_t ddb_size = 0;
8315 void *pddb = NULL;
8316 int target_id;
8317 int rc = 0;
8318
8319 if (fnode_sess->is_boot_target) {
8320 rc = -EPERM;
8321 DEBUG2(ql4_printk(KERN_ERR, ha,
8322 "%s: Deletion of boot target entry is not permitted.\n",
8323 __func__));
8324 goto exit_ddb_del;
8325 }
8326
8327 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT)
8328 goto sysfs_ddb_del;
8329
8330 if (is_qla40XX(ha)) {
8331 dev_db_start_offset = FLASH_OFFSET_DB_INFO;
8332 dev_db_end_offset = FLASH_OFFSET_DB_END;
8333 dev_db_start_offset += (fnode_sess->target_id *
8334 sizeof(*fw_ddb_entry));
8335 ddb_size = sizeof(*fw_ddb_entry);
8336 } else {
8337 dev_db_start_offset = FLASH_RAW_ACCESS_ADDR +
8338 (ha->hw.flt_region_ddb << 2);
8339 /* flt_ddb_size is DDB table size for both ports
8340 * so divide it by 2 to calculate the offset for second port
8341 */
8342 if (ha->port_num == 1)
8343 dev_db_start_offset += (ha->hw.flt_ddb_size / 2);
8344
8345 dev_db_end_offset = dev_db_start_offset +
8346 (ha->hw.flt_ddb_size / 2);
8347
8348 dev_db_start_offset += (fnode_sess->target_id *
8349 sizeof(*fw_ddb_entry));
8350 dev_db_start_offset += offsetof(struct dev_db_entry, cookie);
8351
8352 ddb_size = sizeof(*ddb_cookie);
8353 }
8354
8355 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: start offset=%u, end offset=%u\n",
8356 __func__, dev_db_start_offset, dev_db_end_offset));
8357
8358 if (dev_db_start_offset > dev_db_end_offset) {
8359 rc = -EIO;
8360 DEBUG2(ql4_printk(KERN_ERR, ha, "%s:Invalid DDB index %u\n",
8361 __func__, fnode_sess->target_id));
8362 goto exit_ddb_del;
8363 }
8364
8365 pddb = dma_alloc_coherent(&ha->pdev->dev, ddb_size,
8366 &fw_ddb_entry_dma, GFP_KERNEL);
8367 if (!pddb) {
8368 rc = -ENOMEM;
8369 DEBUG2(ql4_printk(KERN_ERR, ha,
8370 "%s: Unable to allocate dma buffer\n",
8371 __func__));
8372 goto exit_ddb_del;
8373 }
8374
8375 if (is_qla40XX(ha)) {
8376 fw_ddb_entry = pddb;
8377 memset(fw_ddb_entry, 0, ddb_size);
8378 ddb_cookie = &fw_ddb_entry->cookie;
8379 } else {
8380 ddb_cookie = pddb;
8381 }
8382
8383 /* invalidate the cookie */
8384 *ddb_cookie = 0xFFEE;
8385 qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset,
8386 ddb_size, FLASH_OPT_RMW_COMMIT);
8387
8388 sysfs_ddb_del:
8389 target_id = fnode_sess->target_id;
8390 iscsi_destroy_flashnode_sess(fnode_sess);
8391 ql4_printk(KERN_INFO, ha,
8392 "%s: session and conn entries for flashnode %u of host %lu deleted\n",
8393 __func__, target_id, ha->host_no);
8394 exit_ddb_del:
8395 if (pddb)
8396 dma_free_coherent(&ha->pdev->dev, ddb_size, pddb,
8397 fw_ddb_entry_dma);
8398 return rc;
8399 }
8400
8401 /**
8402 * qla4xxx_sysfs_ddb_export - Create sysfs entries for firmware DDBs
8403 * @ha: pointer to adapter structure
8404 *
8405 * Export the firmware DDB for all send targets and normal targets to sysfs.
8406 **/
8407 int qla4xxx_sysfs_ddb_export(struct scsi_qla_host *ha)
8408 {
8409 struct dev_db_entry *fw_ddb_entry = NULL;
8410 dma_addr_t fw_ddb_entry_dma;
8411 uint16_t max_ddbs;
8412 uint16_t idx = 0;
8413 int ret = QLA_SUCCESS;
8414
8415 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev,
8416 sizeof(*fw_ddb_entry),
8417 &fw_ddb_entry_dma, GFP_KERNEL);
8418 if (!fw_ddb_entry) {
8419 DEBUG2(ql4_printk(KERN_ERR, ha,
8420 "%s: Unable to allocate dma buffer\n",
8421 __func__));
8422 return -ENOMEM;
8423 }
8424
8425 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES :
8426 MAX_DEV_DB_ENTRIES;
8427
8428 for (idx = 0; idx < max_ddbs; idx++) {
8429 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry, fw_ddb_entry_dma,
8430 idx))
8431 continue;
8432
8433 ret = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 0);
8434 if (ret) {
8435 ret = -EIO;
8436 break;
8437 }
8438 }
8439
8440 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry,
8441 fw_ddb_entry_dma);
8442
8443 return ret;
8444 }
8445
8446 static void qla4xxx_sysfs_ddb_remove(struct scsi_qla_host *ha)
8447 {
8448 iscsi_destroy_all_flashnode(ha->host);
8449 }
8450
8451 /**
8452 * qla4xxx_build_ddb_list - Build ddb list and setup sessions
8453 * @ha: pointer to adapter structure
8454 * @is_reset: Is this init path or reset path
8455 *
8456 * Create a list of sendtargets (st) from firmware DDBs, issue send targets
8457 * using connection open, then create the list of normal targets (nt)
8458 * from firmware DDBs. Based on the list of nt setup session and connection
8459 * objects.
8460 **/
8461 void qla4xxx_build_ddb_list(struct scsi_qla_host *ha, int is_reset)
8462 {
8463 uint16_t tmo = 0;
8464 struct list_head list_st, list_nt;
8465 struct qla_ddb_index *st_ddb_idx, *st_ddb_idx_tmp;
8466 unsigned long wtime;
8467
8468 if (!test_bit(AF_LINK_UP, &ha->flags)) {
8469 set_bit(AF_BUILD_DDB_LIST, &ha->flags);
8470 ha->is_reset = is_reset;
8471 return;
8472 }
8473
8474 INIT_LIST_HEAD(&list_st);
8475 INIT_LIST_HEAD(&list_nt);
8476
8477 qla4xxx_build_st_list(ha, &list_st);
8478
8479 /* Before issuing conn open mbox, ensure all IPs states are configured
8480 * Note, conn open fails if IPs are not configured
8481 */
8482 qla4xxx_wait_for_ip_configuration(ha);
8483
8484 /* Go thru the STs and fire the sendtargets by issuing conn open mbx */
8485 list_for_each_entry_safe(st_ddb_idx, st_ddb_idx_tmp, &list_st, list) {
8486 qla4xxx_conn_open(ha, st_ddb_idx->fw_ddb_idx);
8487 }
8488
8489 /* Wait to ensure all sendtargets are done for min 12 sec wait */
8490 tmo = ((ha->def_timeout > LOGIN_TOV) &&
8491 (ha->def_timeout < LOGIN_TOV * 10) ?
8492 ha->def_timeout : LOGIN_TOV);
8493
8494 DEBUG2(ql4_printk(KERN_INFO, ha,
8495 "Default time to wait for build ddb %d\n", tmo));
8496
8497 wtime = jiffies + (HZ * tmo);
8498 do {
8499 if (list_empty(&list_st))
8500 break;
8501
8502 qla4xxx_remove_failed_ddb(ha, &list_st);
8503 schedule_timeout_uninterruptible(HZ / 10);
8504 } while (time_after(wtime, jiffies));
8505
8506
8507 qla4xxx_build_nt_list(ha, &list_nt, &list_st, is_reset);
8508
8509 qla4xxx_free_ddb_list(&list_st);
8510 qla4xxx_free_ddb_list(&list_nt);
8511
8512 qla4xxx_free_ddb_index(ha);
8513 }
8514
8515 /**
8516 * qla4xxx_wait_login_resp_boot_tgt - Wait for iSCSI boot target login
8517 * response.
8518 * @ha: pointer to adapter structure
8519 *
8520 * When the boot entry is normal iSCSI target then DF_BOOT_TGT flag will be
8521 * set in DDB and we will wait for login response of boot targets during
8522 * probe.
8523 **/
8524 static void qla4xxx_wait_login_resp_boot_tgt(struct scsi_qla_host *ha)
8525 {
8526 struct ddb_entry *ddb_entry;
8527 struct dev_db_entry *fw_ddb_entry = NULL;
8528 dma_addr_t fw_ddb_entry_dma;
8529 unsigned long wtime;
8530 uint32_t ddb_state;
8531 int max_ddbs, idx, ret;
8532
8533 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
8534 MAX_DEV_DB_ENTRIES;
8535
8536 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8537 &fw_ddb_entry_dma, GFP_KERNEL);
8538 if (!fw_ddb_entry) {
8539 ql4_printk(KERN_ERR, ha,
8540 "%s: Unable to allocate dma buffer\n", __func__);
8541 goto exit_login_resp;
8542 }
8543
8544 wtime = jiffies + (HZ * BOOT_LOGIN_RESP_TOV);
8545
8546 for (idx = 0; idx < max_ddbs; idx++) {
8547 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
8548 if (ddb_entry == NULL)
8549 continue;
8550
8551 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) {
8552 DEBUG2(ql4_printk(KERN_INFO, ha,
8553 "%s: DDB index [%d]\n", __func__,
8554 ddb_entry->fw_ddb_index));
8555 do {
8556 ret = qla4xxx_get_fwddb_entry(ha,
8557 ddb_entry->fw_ddb_index,
8558 fw_ddb_entry, fw_ddb_entry_dma,
8559 NULL, NULL, &ddb_state, NULL,
8560 NULL, NULL);
8561 if (ret == QLA_ERROR)
8562 goto exit_login_resp;
8563
8564 if ((ddb_state == DDB_DS_SESSION_ACTIVE) ||
8565 (ddb_state == DDB_DS_SESSION_FAILED))
8566 break;
8567
8568 schedule_timeout_uninterruptible(HZ);
8569
8570 } while ((time_after(wtime, jiffies)));
8571
8572 if (!time_after(wtime, jiffies)) {
8573 DEBUG2(ql4_printk(KERN_INFO, ha,
8574 "%s: Login response wait timer expired\n",
8575 __func__));
8576 goto exit_login_resp;
8577 }
8578 }
8579 }
8580
8581 exit_login_resp:
8582 if (fw_ddb_entry)
8583 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8584 fw_ddb_entry, fw_ddb_entry_dma);
8585 }
8586
8587 /**
8588 * qla4xxx_probe_adapter - callback function to probe HBA
8589 * @pdev: pointer to pci_dev structure
8590 * @pci_device_id: pointer to pci_device entry
8591 *
8592 * This routine will probe for Qlogic 4xxx iSCSI host adapters.
8593 * It returns zero if successful. It also initializes all data necessary for
8594 * the driver.
8595 **/
8596 static int qla4xxx_probe_adapter(struct pci_dev *pdev,
8597 const struct pci_device_id *ent)
8598 {
8599 int ret = -ENODEV, status;
8600 struct Scsi_Host *host;
8601 struct scsi_qla_host *ha;
8602 uint8_t init_retry_count = 0;
8603 char buf[34];
8604 struct qla4_8xxx_legacy_intr_set *nx_legacy_intr;
8605 uint32_t dev_state;
8606
8607 if (pci_enable_device(pdev))
8608 return -1;
8609
8610 host = iscsi_host_alloc(&qla4xxx_driver_template, sizeof(*ha), 0);
8611 if (host == NULL) {
8612 printk(KERN_WARNING
8613 "qla4xxx: Couldn't allocate host from scsi layer!\n");
8614 goto probe_disable_device;
8615 }
8616
8617 /* Clear our data area */
8618 ha = to_qla_host(host);
8619 memset(ha, 0, sizeof(*ha));
8620
8621 /* Save the information from PCI BIOS. */
8622 ha->pdev = pdev;
8623 ha->host = host;
8624 ha->host_no = host->host_no;
8625 ha->func_num = PCI_FUNC(ha->pdev->devfn);
8626
8627 pci_enable_pcie_error_reporting(pdev);
8628
8629 /* Setup Runtime configurable options */
8630 if (is_qla8022(ha)) {
8631 ha->isp_ops = &qla4_82xx_isp_ops;
8632 ha->reg_tbl = (uint32_t *) qla4_82xx_reg_tbl;
8633 ha->qdr_sn_window = -1;
8634 ha->ddr_mn_window = -1;
8635 ha->curr_window = 255;
8636 nx_legacy_intr = &legacy_intr[ha->func_num];
8637 ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit;
8638 ha->nx_legacy_intr.tgt_status_reg =
8639 nx_legacy_intr->tgt_status_reg;
8640 ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg;
8641 ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg;
8642 } else if (is_qla8032(ha) || is_qla8042(ha)) {
8643 ha->isp_ops = &qla4_83xx_isp_ops;
8644 ha->reg_tbl = (uint32_t *)qla4_83xx_reg_tbl;
8645 } else {
8646 ha->isp_ops = &qla4xxx_isp_ops;
8647 }
8648
8649 if (is_qla80XX(ha)) {
8650 rwlock_init(&ha->hw_lock);
8651 ha->pf_bit = ha->func_num << 16;
8652 /* Set EEH reset type to fundamental if required by hba */
8653 pdev->needs_freset = 1;
8654 }
8655
8656 /* Configure PCI I/O space. */
8657 ret = ha->isp_ops->iospace_config(ha);
8658 if (ret)
8659 goto probe_failed_ioconfig;
8660
8661 ql4_printk(KERN_INFO, ha, "Found an ISP%04x, irq %d, iobase 0x%p\n",
8662 pdev->device, pdev->irq, ha->reg);
8663
8664 qla4xxx_config_dma_addressing(ha);
8665
8666 /* Initialize lists and spinlocks. */
8667 INIT_LIST_HEAD(&ha->free_srb_q);
8668
8669 mutex_init(&ha->mbox_sem);
8670 mutex_init(&ha->chap_sem);
8671 init_completion(&ha->mbx_intr_comp);
8672 init_completion(&ha->disable_acb_comp);
8673 init_completion(&ha->idc_comp);
8674 init_completion(&ha->link_up_comp);
8675 init_completion(&ha->disable_acb_comp);
8676
8677 spin_lock_init(&ha->hardware_lock);
8678 spin_lock_init(&ha->work_lock);
8679
8680 /* Initialize work list */
8681 INIT_LIST_HEAD(&ha->work_list);
8682
8683 /* Allocate dma buffers */
8684 if (qla4xxx_mem_alloc(ha)) {
8685 ql4_printk(KERN_WARNING, ha,
8686 "[ERROR] Failed to allocate memory for adapter\n");
8687
8688 ret = -ENOMEM;
8689 goto probe_failed;
8690 }
8691
8692 host->cmd_per_lun = 3;
8693 host->max_channel = 0;
8694 host->max_lun = MAX_LUNS - 1;
8695 host->max_id = MAX_TARGETS;
8696 host->max_cmd_len = IOCB_MAX_CDB_LEN;
8697 host->can_queue = MAX_SRBS ;
8698 host->transportt = qla4xxx_scsi_transport;
8699
8700 ret = scsi_init_shared_tag_map(host, MAX_SRBS);
8701 if (ret) {
8702 ql4_printk(KERN_WARNING, ha,
8703 "%s: scsi_init_shared_tag_map failed\n", __func__);
8704 goto probe_failed;
8705 }
8706
8707 pci_set_drvdata(pdev, ha);
8708
8709 ret = scsi_add_host(host, &pdev->dev);
8710 if (ret)
8711 goto probe_failed;
8712
8713 if (is_qla80XX(ha))
8714 qla4_8xxx_get_flash_info(ha);
8715
8716 if (is_qla8032(ha) || is_qla8042(ha)) {
8717 qla4_83xx_read_reset_template(ha);
8718 /*
8719 * NOTE: If ql4dontresethba==1, set IDC_CTRL DONTRESET_BIT0.
8720 * If DONRESET_BIT0 is set, drivers should not set dev_state
8721 * to NEED_RESET. But if NEED_RESET is set, drivers should
8722 * should honor the reset.
8723 */
8724 if (ql4xdontresethba == 1)
8725 qla4_83xx_set_idc_dontreset(ha);
8726 }
8727
8728 /*
8729 * Initialize the Host adapter request/response queues and
8730 * firmware
8731 * NOTE: interrupts enabled upon successful completion
8732 */
8733 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER);
8734
8735 /* Dont retry adapter initialization if IRQ allocation failed */
8736 if (is_qla80XX(ha) && (status == QLA_ERROR))
8737 goto skip_retry_init;
8738
8739 while ((!test_bit(AF_ONLINE, &ha->flags)) &&
8740 init_retry_count++ < MAX_INIT_RETRIES) {
8741
8742 if (is_qla80XX(ha)) {
8743 ha->isp_ops->idc_lock(ha);
8744 dev_state = qla4_8xxx_rd_direct(ha,
8745 QLA8XXX_CRB_DEV_STATE);
8746 ha->isp_ops->idc_unlock(ha);
8747 if (dev_state == QLA8XXX_DEV_FAILED) {
8748 ql4_printk(KERN_WARNING, ha, "%s: don't retry "
8749 "initialize adapter. H/W is in failed state\n",
8750 __func__);
8751 break;
8752 }
8753 }
8754 DEBUG2(printk("scsi: %s: retrying adapter initialization "
8755 "(%d)\n", __func__, init_retry_count));
8756
8757 if (ha->isp_ops->reset_chip(ha) == QLA_ERROR)
8758 continue;
8759
8760 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER);
8761 if (is_qla80XX(ha) && (status == QLA_ERROR)) {
8762 if (qla4_8xxx_check_init_adapter_retry(ha) == QLA_ERROR)
8763 goto skip_retry_init;
8764 }
8765 }
8766
8767 skip_retry_init:
8768 if (!test_bit(AF_ONLINE, &ha->flags)) {
8769 ql4_printk(KERN_WARNING, ha, "Failed to initialize adapter\n");
8770
8771 if ((is_qla8022(ha) && ql4xdontresethba) ||
8772 ((is_qla8032(ha) || is_qla8042(ha)) &&
8773 qla4_83xx_idc_dontreset(ha))) {
8774 /* Put the device in failed state. */
8775 DEBUG2(printk(KERN_ERR "HW STATE: FAILED\n"));
8776 ha->isp_ops->idc_lock(ha);
8777 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
8778 QLA8XXX_DEV_FAILED);
8779 ha->isp_ops->idc_unlock(ha);
8780 }
8781 ret = -ENODEV;
8782 goto remove_host;
8783 }
8784
8785 /* Startup the kernel thread for this host adapter. */
8786 DEBUG2(printk("scsi: %s: Starting kernel thread for "
8787 "qla4xxx_dpc\n", __func__));
8788 sprintf(buf, "qla4xxx_%lu_dpc", ha->host_no);
8789 ha->dpc_thread = create_singlethread_workqueue(buf);
8790 if (!ha->dpc_thread) {
8791 ql4_printk(KERN_WARNING, ha, "Unable to start DPC thread!\n");
8792 ret = -ENODEV;
8793 goto remove_host;
8794 }
8795 INIT_WORK(&ha->dpc_work, qla4xxx_do_dpc);
8796
8797 ha->task_wq = alloc_workqueue("qla4xxx_%lu_task", WQ_MEM_RECLAIM, 1,
8798 ha->host_no);
8799 if (!ha->task_wq) {
8800 ql4_printk(KERN_WARNING, ha, "Unable to start task thread!\n");
8801 ret = -ENODEV;
8802 goto remove_host;
8803 }
8804
8805 /*
8806 * For ISP-8XXX, request_irqs is called in qla4_8xxx_load_risc
8807 * (which is called indirectly by qla4xxx_initialize_adapter),
8808 * so that irqs will be registered after crbinit but before
8809 * mbx_intr_enable.
8810 */
8811 if (is_qla40XX(ha)) {
8812 ret = qla4xxx_request_irqs(ha);
8813 if (ret) {
8814 ql4_printk(KERN_WARNING, ha, "Failed to reserve "
8815 "interrupt %d already in use.\n", pdev->irq);
8816 goto remove_host;
8817 }
8818 }
8819
8820 pci_save_state(ha->pdev);
8821 ha->isp_ops->enable_intrs(ha);
8822
8823 /* Start timer thread. */
8824 qla4xxx_start_timer(ha, qla4xxx_timer, 1);
8825
8826 set_bit(AF_INIT_DONE, &ha->flags);
8827
8828 qla4_8xxx_alloc_sysfs_attr(ha);
8829
8830 printk(KERN_INFO
8831 " QLogic iSCSI HBA Driver version: %s\n"
8832 " QLogic ISP%04x @ %s, host#=%ld, fw=%02d.%02d.%02d.%02d\n",
8833 qla4xxx_version_str, ha->pdev->device, pci_name(ha->pdev),
8834 ha->host_no, ha->fw_info.fw_major, ha->fw_info.fw_minor,
8835 ha->fw_info.fw_patch, ha->fw_info.fw_build);
8836
8837 /* Set the driver version */
8838 if (is_qla80XX(ha))
8839 qla4_8xxx_set_param(ha, SET_DRVR_VERSION);
8840
8841 if (qla4xxx_setup_boot_info(ha))
8842 ql4_printk(KERN_ERR, ha,
8843 "%s: No iSCSI boot target configured\n", __func__);
8844
8845 set_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags);
8846 /* Perform the build ddb list and login to each */
8847 qla4xxx_build_ddb_list(ha, INIT_ADAPTER);
8848 iscsi_host_for_each_session(ha->host, qla4xxx_login_flash_ddb);
8849 qla4xxx_wait_login_resp_boot_tgt(ha);
8850
8851 qla4xxx_create_chap_list(ha);
8852
8853 qla4xxx_create_ifaces(ha);
8854 return 0;
8855
8856 remove_host:
8857 scsi_remove_host(ha->host);
8858
8859 probe_failed:
8860 qla4xxx_free_adapter(ha);
8861
8862 probe_failed_ioconfig:
8863 pci_disable_pcie_error_reporting(pdev);
8864 scsi_host_put(ha->host);
8865
8866 probe_disable_device:
8867 pci_disable_device(pdev);
8868
8869 return ret;
8870 }
8871
8872 /**
8873 * qla4xxx_prevent_other_port_reinit - prevent other port from re-initialize
8874 * @ha: pointer to adapter structure
8875 *
8876 * Mark the other ISP-4xxx port to indicate that the driver is being removed,
8877 * so that the other port will not re-initialize while in the process of
8878 * removing the ha due to driver unload or hba hotplug.
8879 **/
8880 static void qla4xxx_prevent_other_port_reinit(struct scsi_qla_host *ha)
8881 {
8882 struct scsi_qla_host *other_ha = NULL;
8883 struct pci_dev *other_pdev = NULL;
8884 int fn = ISP4XXX_PCI_FN_2;
8885
8886 /*iscsi function numbers for ISP4xxx is 1 and 3*/
8887 if (PCI_FUNC(ha->pdev->devfn) & BIT_1)
8888 fn = ISP4XXX_PCI_FN_1;
8889
8890 other_pdev =
8891 pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus),
8892 ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
8893 fn));
8894
8895 /* Get other_ha if other_pdev is valid and state is enable*/
8896 if (other_pdev) {
8897 if (atomic_read(&other_pdev->enable_cnt)) {
8898 other_ha = pci_get_drvdata(other_pdev);
8899 if (other_ha) {
8900 set_bit(AF_HA_REMOVAL, &other_ha->flags);
8901 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: "
8902 "Prevent %s reinit\n", __func__,
8903 dev_name(&other_ha->pdev->dev)));
8904 }
8905 }
8906 pci_dev_put(other_pdev);
8907 }
8908 }
8909
8910 static void qla4xxx_destroy_ddb(struct scsi_qla_host *ha,
8911 struct ddb_entry *ddb_entry)
8912 {
8913 struct dev_db_entry *fw_ddb_entry = NULL;
8914 dma_addr_t fw_ddb_entry_dma;
8915 unsigned long wtime;
8916 uint32_t ddb_state;
8917 int options;
8918 int status;
8919
8920 options = LOGOUT_OPTION_CLOSE_SESSION;
8921 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR) {
8922 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__);
8923 goto clear_ddb;
8924 }
8925
8926 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8927 &fw_ddb_entry_dma, GFP_KERNEL);
8928 if (!fw_ddb_entry) {
8929 ql4_printk(KERN_ERR, ha,
8930 "%s: Unable to allocate dma buffer\n", __func__);
8931 goto clear_ddb;
8932 }
8933
8934 wtime = jiffies + (HZ * LOGOUT_TOV);
8935 do {
8936 status = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
8937 fw_ddb_entry, fw_ddb_entry_dma,
8938 NULL, NULL, &ddb_state, NULL,
8939 NULL, NULL);
8940 if (status == QLA_ERROR)
8941 goto free_ddb;
8942
8943 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) ||
8944 (ddb_state == DDB_DS_SESSION_FAILED))
8945 goto free_ddb;
8946
8947 schedule_timeout_uninterruptible(HZ);
8948 } while ((time_after(wtime, jiffies)));
8949
8950 free_ddb:
8951 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8952 fw_ddb_entry, fw_ddb_entry_dma);
8953 clear_ddb:
8954 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
8955 }
8956
8957 static void qla4xxx_destroy_fw_ddb_session(struct scsi_qla_host *ha)
8958 {
8959 struct ddb_entry *ddb_entry;
8960 int idx;
8961
8962 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
8963
8964 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
8965 if ((ddb_entry != NULL) &&
8966 (ddb_entry->ddb_type == FLASH_DDB)) {
8967
8968 qla4xxx_destroy_ddb(ha, ddb_entry);
8969 /*
8970 * we have decremented the reference count of the driver
8971 * when we setup the session to have the driver unload
8972 * to be seamless without actually destroying the
8973 * session
8974 **/
8975 try_module_get(qla4xxx_iscsi_transport.owner);
8976 iscsi_destroy_endpoint(ddb_entry->conn->ep);
8977 qla4xxx_free_ddb(ha, ddb_entry);
8978 iscsi_session_teardown(ddb_entry->sess);
8979 }
8980 }
8981 }
8982 /**
8983 * qla4xxx_remove_adapter - callback function to remove adapter.
8984 * @pci_dev: PCI device pointer
8985 **/
8986 static void qla4xxx_remove_adapter(struct pci_dev *pdev)
8987 {
8988 struct scsi_qla_host *ha;
8989
8990 /*
8991 * If the PCI device is disabled then it means probe_adapter had
8992 * failed and resources already cleaned up on probe_adapter exit.
8993 */
8994 if (!pci_is_enabled(pdev))
8995 return;
8996
8997 ha = pci_get_drvdata(pdev);
8998
8999 if (is_qla40XX(ha))
9000 qla4xxx_prevent_other_port_reinit(ha);
9001
9002 /* destroy iface from sysfs */
9003 qla4xxx_destroy_ifaces(ha);
9004
9005 if ((!ql4xdisablesysfsboot) && ha->boot_kset)
9006 iscsi_boot_destroy_kset(ha->boot_kset);
9007
9008 qla4xxx_destroy_fw_ddb_session(ha);
9009 qla4_8xxx_free_sysfs_attr(ha);
9010
9011 qla4xxx_sysfs_ddb_remove(ha);
9012 scsi_remove_host(ha->host);
9013
9014 qla4xxx_free_adapter(ha);
9015
9016 scsi_host_put(ha->host);
9017
9018 pci_disable_pcie_error_reporting(pdev);
9019 pci_disable_device(pdev);
9020 }
9021
9022 /**
9023 * qla4xxx_config_dma_addressing() - Configure OS DMA addressing method.
9024 * @ha: HA context
9025 *
9026 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
9027 * supported addressing method.
9028 */
9029 static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha)
9030 {
9031 int retval;
9032
9033 /* Update our PCI device dma_mask for full 64 bit mask */
9034 if (pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(64)) == 0) {
9035 if (pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) {
9036 dev_dbg(&ha->pdev->dev,
9037 "Failed to set 64 bit PCI consistent mask; "
9038 "using 32 bit.\n");
9039 retval = pci_set_consistent_dma_mask(ha->pdev,
9040 DMA_BIT_MASK(32));
9041 }
9042 } else
9043 retval = pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(32));
9044 }
9045
9046 static int qla4xxx_slave_alloc(struct scsi_device *sdev)
9047 {
9048 struct iscsi_cls_session *cls_sess;
9049 struct iscsi_session *sess;
9050 struct ddb_entry *ddb;
9051 int queue_depth = QL4_DEF_QDEPTH;
9052
9053 cls_sess = starget_to_session(sdev->sdev_target);
9054 sess = cls_sess->dd_data;
9055 ddb = sess->dd_data;
9056
9057 sdev->hostdata = ddb;
9058
9059 if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU)
9060 queue_depth = ql4xmaxqdepth;
9061
9062 scsi_change_queue_depth(sdev, queue_depth);
9063 return 0;
9064 }
9065
9066 /**
9067 * qla4xxx_del_from_active_array - returns an active srb
9068 * @ha: Pointer to host adapter structure.
9069 * @index: index into the active_array
9070 *
9071 * This routine removes and returns the srb at the specified index
9072 **/
9073 struct srb *qla4xxx_del_from_active_array(struct scsi_qla_host *ha,
9074 uint32_t index)
9075 {
9076 struct srb *srb = NULL;
9077 struct scsi_cmnd *cmd = NULL;
9078
9079 cmd = scsi_host_find_tag(ha->host, index);
9080 if (!cmd)
9081 return srb;
9082
9083 srb = (struct srb *)CMD_SP(cmd);
9084 if (!srb)
9085 return srb;
9086
9087 /* update counters */
9088 if (srb->flags & SRB_DMA_VALID) {
9089 ha->iocb_cnt -= srb->iocb_cnt;
9090 if (srb->cmd)
9091 srb->cmd->host_scribble =
9092 (unsigned char *)(unsigned long) MAX_SRBS;
9093 }
9094 return srb;
9095 }
9096
9097 /**
9098 * qla4xxx_eh_wait_on_command - waits for command to be returned by firmware
9099 * @ha: Pointer to host adapter structure.
9100 * @cmd: Scsi Command to wait on.
9101 *
9102 * This routine waits for the command to be returned by the Firmware
9103 * for some max time.
9104 **/
9105 static int qla4xxx_eh_wait_on_command(struct scsi_qla_host *ha,
9106 struct scsi_cmnd *cmd)
9107 {
9108 int done = 0;
9109 struct srb *rp;
9110 uint32_t max_wait_time = EH_WAIT_CMD_TOV;
9111 int ret = SUCCESS;
9112
9113 /* Dont wait on command if PCI error is being handled
9114 * by PCI AER driver
9115 */
9116 if (unlikely(pci_channel_offline(ha->pdev)) ||
9117 (test_bit(AF_EEH_BUSY, &ha->flags))) {
9118 ql4_printk(KERN_WARNING, ha, "scsi%ld: Return from %s\n",
9119 ha->host_no, __func__);
9120 return ret;
9121 }
9122
9123 do {
9124 /* Checking to see if its returned to OS */
9125 rp = (struct srb *) CMD_SP(cmd);
9126 if (rp == NULL) {
9127 done++;
9128 break;
9129 }
9130
9131 msleep(2000);
9132 } while (max_wait_time--);
9133
9134 return done;
9135 }
9136
9137 /**
9138 * qla4xxx_wait_for_hba_online - waits for HBA to come online
9139 * @ha: Pointer to host adapter structure
9140 **/
9141 static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha)
9142 {
9143 unsigned long wait_online;
9144
9145 wait_online = jiffies + (HBA_ONLINE_TOV * HZ);
9146 while (time_before(jiffies, wait_online)) {
9147
9148 if (adapter_up(ha))
9149 return QLA_SUCCESS;
9150
9151 msleep(2000);
9152 }
9153
9154 return QLA_ERROR;
9155 }
9156
9157 /**
9158 * qla4xxx_eh_wait_for_commands - wait for active cmds to finish.
9159 * @ha: pointer to HBA
9160 * @t: target id
9161 * @l: lun id
9162 *
9163 * This function waits for all outstanding commands to a lun to complete. It
9164 * returns 0 if all pending commands are returned and 1 otherwise.
9165 **/
9166 static int qla4xxx_eh_wait_for_commands(struct scsi_qla_host *ha,
9167 struct scsi_target *stgt,
9168 struct scsi_device *sdev)
9169 {
9170 int cnt;
9171 int status = 0;
9172 struct scsi_cmnd *cmd;
9173
9174 /*
9175 * Waiting for all commands for the designated target or dev
9176 * in the active array
9177 */
9178 for (cnt = 0; cnt < ha->host->can_queue; cnt++) {
9179 cmd = scsi_host_find_tag(ha->host, cnt);
9180 if (cmd && stgt == scsi_target(cmd->device) &&
9181 (!sdev || sdev == cmd->device)) {
9182 if (!qla4xxx_eh_wait_on_command(ha, cmd)) {
9183 status++;
9184 break;
9185 }
9186 }
9187 }
9188 return status;
9189 }
9190
9191 /**
9192 * qla4xxx_eh_abort - callback for abort task.
9193 * @cmd: Pointer to Linux's SCSI command structure
9194 *
9195 * This routine is called by the Linux OS to abort the specified
9196 * command.
9197 **/
9198 static int qla4xxx_eh_abort(struct scsi_cmnd *cmd)
9199 {
9200 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
9201 unsigned int id = cmd->device->id;
9202 uint64_t lun = cmd->device->lun;
9203 unsigned long flags;
9204 struct srb *srb = NULL;
9205 int ret = SUCCESS;
9206 int wait = 0;
9207
9208 ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%llu: Abort command issued cmd=%p, cdb=0x%x\n",
9209 ha->host_no, id, lun, cmd, cmd->cmnd[0]);
9210
9211 spin_lock_irqsave(&ha->hardware_lock, flags);
9212 srb = (struct srb *) CMD_SP(cmd);
9213 if (!srb) {
9214 spin_unlock_irqrestore(&ha->hardware_lock, flags);
9215 ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%llu: Specified command has already completed.\n",
9216 ha->host_no, id, lun);
9217 return SUCCESS;
9218 }
9219 kref_get(&srb->srb_ref);
9220 spin_unlock_irqrestore(&ha->hardware_lock, flags);
9221
9222 if (qla4xxx_abort_task(ha, srb) != QLA_SUCCESS) {
9223 DEBUG3(printk("scsi%ld:%d:%llu: Abort_task mbx failed.\n",
9224 ha->host_no, id, lun));
9225 ret = FAILED;
9226 } else {
9227 DEBUG3(printk("scsi%ld:%d:%llu: Abort_task mbx success.\n",
9228 ha->host_no, id, lun));
9229 wait = 1;
9230 }
9231
9232 kref_put(&srb->srb_ref, qla4xxx_srb_compl);
9233
9234 /* Wait for command to complete */
9235 if (wait) {
9236 if (!qla4xxx_eh_wait_on_command(ha, cmd)) {
9237 DEBUG2(printk("scsi%ld:%d:%llu: Abort handler timed out\n",
9238 ha->host_no, id, lun));
9239 ret = FAILED;
9240 }
9241 }
9242
9243 ql4_printk(KERN_INFO, ha,
9244 "scsi%ld:%d:%llu: Abort command - %s\n",
9245 ha->host_no, id, lun, (ret == SUCCESS) ? "succeeded" : "failed");
9246
9247 return ret;
9248 }
9249
9250 /**
9251 * qla4xxx_eh_device_reset - callback for target reset.
9252 * @cmd: Pointer to Linux's SCSI command structure
9253 *
9254 * This routine is called by the Linux OS to reset all luns on the
9255 * specified target.
9256 **/
9257 static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd)
9258 {
9259 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
9260 struct ddb_entry *ddb_entry = cmd->device->hostdata;
9261 int ret = FAILED, stat;
9262
9263 if (!ddb_entry)
9264 return ret;
9265
9266 ret = iscsi_block_scsi_eh(cmd);
9267 if (ret)
9268 return ret;
9269 ret = FAILED;
9270
9271 ql4_printk(KERN_INFO, ha,
9272 "scsi%ld:%d:%d:%llu: DEVICE RESET ISSUED.\n", ha->host_no,
9273 cmd->device->channel, cmd->device->id, cmd->device->lun);
9274
9275 DEBUG2(printk(KERN_INFO
9276 "scsi%ld: DEVICE_RESET cmd=%p jiffies = 0x%lx, to=%x,"
9277 "dpc_flags=%lx, status=%x allowed=%d\n", ha->host_no,
9278 cmd, jiffies, cmd->request->timeout / HZ,
9279 ha->dpc_flags, cmd->result, cmd->allowed));
9280
9281 /* FIXME: wait for hba to go online */
9282 stat = qla4xxx_reset_lun(ha, ddb_entry, cmd->device->lun);
9283 if (stat != QLA_SUCCESS) {
9284 ql4_printk(KERN_INFO, ha, "DEVICE RESET FAILED. %d\n", stat);
9285 goto eh_dev_reset_done;
9286 }
9287
9288 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device),
9289 cmd->device)) {
9290 ql4_printk(KERN_INFO, ha,
9291 "DEVICE RESET FAILED - waiting for "
9292 "commands.\n");
9293 goto eh_dev_reset_done;
9294 }
9295
9296 /* Send marker. */
9297 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun,
9298 MM_LUN_RESET) != QLA_SUCCESS)
9299 goto eh_dev_reset_done;
9300
9301 ql4_printk(KERN_INFO, ha,
9302 "scsi(%ld:%d:%d:%llu): DEVICE RESET SUCCEEDED.\n",
9303 ha->host_no, cmd->device->channel, cmd->device->id,
9304 cmd->device->lun);
9305
9306 ret = SUCCESS;
9307
9308 eh_dev_reset_done:
9309
9310 return ret;
9311 }
9312
9313 /**
9314 * qla4xxx_eh_target_reset - callback for target reset.
9315 * @cmd: Pointer to Linux's SCSI command structure
9316 *
9317 * This routine is called by the Linux OS to reset the target.
9318 **/
9319 static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd)
9320 {
9321 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
9322 struct ddb_entry *ddb_entry = cmd->device->hostdata;
9323 int stat, ret;
9324
9325 if (!ddb_entry)
9326 return FAILED;
9327
9328 ret = iscsi_block_scsi_eh(cmd);
9329 if (ret)
9330 return ret;
9331
9332 starget_printk(KERN_INFO, scsi_target(cmd->device),
9333 "WARM TARGET RESET ISSUED.\n");
9334
9335 DEBUG2(printk(KERN_INFO
9336 "scsi%ld: TARGET_DEVICE_RESET cmd=%p jiffies = 0x%lx, "
9337 "to=%x,dpc_flags=%lx, status=%x allowed=%d\n",
9338 ha->host_no, cmd, jiffies, cmd->request->timeout / HZ,
9339 ha->dpc_flags, cmd->result, cmd->allowed));
9340
9341 stat = qla4xxx_reset_target(ha, ddb_entry);
9342 if (stat != QLA_SUCCESS) {
9343 starget_printk(KERN_INFO, scsi_target(cmd->device),
9344 "WARM TARGET RESET FAILED.\n");
9345 return FAILED;
9346 }
9347
9348 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device),
9349 NULL)) {
9350 starget_printk(KERN_INFO, scsi_target(cmd->device),
9351 "WARM TARGET DEVICE RESET FAILED - "
9352 "waiting for commands.\n");
9353 return FAILED;
9354 }
9355
9356 /* Send marker. */
9357 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun,
9358 MM_TGT_WARM_RESET) != QLA_SUCCESS) {
9359 starget_printk(KERN_INFO, scsi_target(cmd->device),
9360 "WARM TARGET DEVICE RESET FAILED - "
9361 "marker iocb failed.\n");
9362 return FAILED;
9363 }
9364
9365 starget_printk(KERN_INFO, scsi_target(cmd->device),
9366 "WARM TARGET RESET SUCCEEDED.\n");
9367 return SUCCESS;
9368 }
9369
9370 /**
9371 * qla4xxx_is_eh_active - check if error handler is running
9372 * @shost: Pointer to SCSI Host struct
9373 *
9374 * This routine finds that if reset host is called in EH
9375 * scenario or from some application like sg_reset
9376 **/
9377 static int qla4xxx_is_eh_active(struct Scsi_Host *shost)
9378 {
9379 if (shost->shost_state == SHOST_RECOVERY)
9380 return 1;
9381 return 0;
9382 }
9383
9384 /**
9385 * qla4xxx_eh_host_reset - kernel callback
9386 * @cmd: Pointer to Linux's SCSI command structure
9387 *
9388 * This routine is invoked by the Linux kernel to perform fatal error
9389 * recovery on the specified adapter.
9390 **/
9391 static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd)
9392 {
9393 int return_status = FAILED;
9394 struct scsi_qla_host *ha;
9395
9396 ha = to_qla_host(cmd->device->host);
9397
9398 if ((is_qla8032(ha) || is_qla8042(ha)) && ql4xdontresethba)
9399 qla4_83xx_set_idc_dontreset(ha);
9400
9401 /*
9402 * For ISP8324 and ISP8042, if IDC_CTRL DONTRESET_BIT0 is set by other
9403 * protocol drivers, we should not set device_state to NEED_RESET
9404 */
9405 if (ql4xdontresethba ||
9406 ((is_qla8032(ha) || is_qla8042(ha)) &&
9407 qla4_83xx_idc_dontreset(ha))) {
9408 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n",
9409 ha->host_no, __func__));
9410
9411 /* Clear outstanding srb in queues */
9412 if (qla4xxx_is_eh_active(cmd->device->host))
9413 qla4xxx_abort_active_cmds(ha, DID_ABORT << 16);
9414
9415 return FAILED;
9416 }
9417
9418 ql4_printk(KERN_INFO, ha,
9419 "scsi(%ld:%d:%d:%llu): HOST RESET ISSUED.\n", ha->host_no,
9420 cmd->device->channel, cmd->device->id, cmd->device->lun);
9421
9422 if (qla4xxx_wait_for_hba_online(ha) != QLA_SUCCESS) {
9423 DEBUG2(printk("scsi%ld:%d: %s: Unable to reset host. Adapter "
9424 "DEAD.\n", ha->host_no, cmd->device->channel,
9425 __func__));
9426
9427 return FAILED;
9428 }
9429
9430 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
9431 if (is_qla80XX(ha))
9432 set_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
9433 else
9434 set_bit(DPC_RESET_HA, &ha->dpc_flags);
9435 }
9436
9437 if (qla4xxx_recover_adapter(ha) == QLA_SUCCESS)
9438 return_status = SUCCESS;
9439
9440 ql4_printk(KERN_INFO, ha, "HOST RESET %s.\n",
9441 return_status == FAILED ? "FAILED" : "SUCCEEDED");
9442
9443 return return_status;
9444 }
9445
9446 static int qla4xxx_context_reset(struct scsi_qla_host *ha)
9447 {
9448 uint32_t mbox_cmd[MBOX_REG_COUNT];
9449 uint32_t mbox_sts[MBOX_REG_COUNT];
9450 struct addr_ctrl_blk_def *acb = NULL;
9451 uint32_t acb_len = sizeof(struct addr_ctrl_blk_def);
9452 int rval = QLA_SUCCESS;
9453 dma_addr_t acb_dma;
9454
9455 acb = dma_alloc_coherent(&ha->pdev->dev,
9456 sizeof(struct addr_ctrl_blk_def),
9457 &acb_dma, GFP_KERNEL);
9458 if (!acb) {
9459 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc acb\n",
9460 __func__);
9461 rval = -ENOMEM;
9462 goto exit_port_reset;
9463 }
9464
9465 memset(acb, 0, acb_len);
9466
9467 rval = qla4xxx_get_acb(ha, acb_dma, PRIMARI_ACB, acb_len);
9468 if (rval != QLA_SUCCESS) {
9469 rval = -EIO;
9470 goto exit_free_acb;
9471 }
9472
9473 rval = qla4xxx_disable_acb(ha);
9474 if (rval != QLA_SUCCESS) {
9475 rval = -EIO;
9476 goto exit_free_acb;
9477 }
9478
9479 wait_for_completion_timeout(&ha->disable_acb_comp,
9480 DISABLE_ACB_TOV * HZ);
9481
9482 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], acb_dma);
9483 if (rval != QLA_SUCCESS) {
9484 rval = -EIO;
9485 goto exit_free_acb;
9486 }
9487
9488 exit_free_acb:
9489 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk_def),
9490 acb, acb_dma);
9491 exit_port_reset:
9492 DEBUG2(ql4_printk(KERN_INFO, ha, "%s %s\n", __func__,
9493 rval == QLA_SUCCESS ? "SUCCEEDED" : "FAILED"));
9494 return rval;
9495 }
9496
9497 static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type)
9498 {
9499 struct scsi_qla_host *ha = to_qla_host(shost);
9500 int rval = QLA_SUCCESS;
9501 uint32_t idc_ctrl;
9502
9503 if (ql4xdontresethba) {
9504 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Don't Reset HBA\n",
9505 __func__));
9506 rval = -EPERM;
9507 goto exit_host_reset;
9508 }
9509
9510 if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
9511 goto recover_adapter;
9512
9513 switch (reset_type) {
9514 case SCSI_ADAPTER_RESET:
9515 set_bit(DPC_RESET_HA, &ha->dpc_flags);
9516 break;
9517 case SCSI_FIRMWARE_RESET:
9518 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
9519 if (is_qla80XX(ha))
9520 /* set firmware context reset */
9521 set_bit(DPC_RESET_HA_FW_CONTEXT,
9522 &ha->dpc_flags);
9523 else {
9524 rval = qla4xxx_context_reset(ha);
9525 goto exit_host_reset;
9526 }
9527 }
9528 break;
9529 }
9530
9531 recover_adapter:
9532 /* For ISP8324 and ISP8042 set graceful reset bit in IDC_DRV_CTRL if
9533 * reset is issued by application */
9534 if ((is_qla8032(ha) || is_qla8042(ha)) &&
9535 test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
9536 idc_ctrl = qla4_83xx_rd_reg(ha, QLA83XX_IDC_DRV_CTRL);
9537 qla4_83xx_wr_reg(ha, QLA83XX_IDC_DRV_CTRL,
9538 (idc_ctrl | GRACEFUL_RESET_BIT1));
9539 }
9540
9541 rval = qla4xxx_recover_adapter(ha);
9542 if (rval != QLA_SUCCESS) {
9543 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: recover adapter fail\n",
9544 __func__));
9545 rval = -EIO;
9546 }
9547
9548 exit_host_reset:
9549 return rval;
9550 }
9551
9552 /* PCI AER driver recovers from all correctable errors w/o
9553 * driver intervention. For uncorrectable errors PCI AER
9554 * driver calls the following device driver's callbacks
9555 *
9556 * - Fatal Errors - link_reset
9557 * - Non-Fatal Errors - driver's pci_error_detected() which
9558 * returns CAN_RECOVER, NEED_RESET or DISCONNECT.
9559 *
9560 * PCI AER driver calls
9561 * CAN_RECOVER - driver's pci_mmio_enabled(), mmio_enabled
9562 * returns RECOVERED or NEED_RESET if fw_hung
9563 * NEED_RESET - driver's slot_reset()
9564 * DISCONNECT - device is dead & cannot recover
9565 * RECOVERED - driver's pci_resume()
9566 */
9567 static pci_ers_result_t
9568 qla4xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
9569 {
9570 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9571
9572 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: error detected:state %x\n",
9573 ha->host_no, __func__, state);
9574
9575 if (!is_aer_supported(ha))
9576 return PCI_ERS_RESULT_NONE;
9577
9578 switch (state) {
9579 case pci_channel_io_normal:
9580 clear_bit(AF_EEH_BUSY, &ha->flags);
9581 return PCI_ERS_RESULT_CAN_RECOVER;
9582 case pci_channel_io_frozen:
9583 set_bit(AF_EEH_BUSY, &ha->flags);
9584 qla4xxx_mailbox_premature_completion(ha);
9585 qla4xxx_free_irqs(ha);
9586 pci_disable_device(pdev);
9587 /* Return back all IOs */
9588 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
9589 return PCI_ERS_RESULT_NEED_RESET;
9590 case pci_channel_io_perm_failure:
9591 set_bit(AF_EEH_BUSY, &ha->flags);
9592 set_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags);
9593 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
9594 return PCI_ERS_RESULT_DISCONNECT;
9595 }
9596 return PCI_ERS_RESULT_NEED_RESET;
9597 }
9598
9599 /**
9600 * qla4xxx_pci_mmio_enabled() gets called if
9601 * qla4xxx_pci_error_detected() returns PCI_ERS_RESULT_CAN_RECOVER
9602 * and read/write to the device still works.
9603 **/
9604 static pci_ers_result_t
9605 qla4xxx_pci_mmio_enabled(struct pci_dev *pdev)
9606 {
9607 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9608
9609 if (!is_aer_supported(ha))
9610 return PCI_ERS_RESULT_NONE;
9611
9612 return PCI_ERS_RESULT_RECOVERED;
9613 }
9614
9615 static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha)
9616 {
9617 uint32_t rval = QLA_ERROR;
9618 int fn;
9619 struct pci_dev *other_pdev = NULL;
9620
9621 ql4_printk(KERN_WARNING, ha, "scsi%ld: In %s\n", ha->host_no, __func__);
9622
9623 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
9624
9625 if (test_bit(AF_ONLINE, &ha->flags)) {
9626 clear_bit(AF_ONLINE, &ha->flags);
9627 clear_bit(AF_LINK_UP, &ha->flags);
9628 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session);
9629 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
9630 }
9631
9632 fn = PCI_FUNC(ha->pdev->devfn);
9633 if (is_qla8022(ha)) {
9634 while (fn > 0) {
9635 fn--;
9636 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Finding PCI device at func %x\n",
9637 ha->host_no, __func__, fn);
9638 /* Get the pci device given the domain, bus,
9639 * slot/function number */
9640 other_pdev = pci_get_domain_bus_and_slot(
9641 pci_domain_nr(ha->pdev->bus),
9642 ha->pdev->bus->number,
9643 PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
9644 fn));
9645
9646 if (!other_pdev)
9647 continue;
9648
9649 if (atomic_read(&other_pdev->enable_cnt)) {
9650 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Found PCI func in enabled state%x\n",
9651 ha->host_no, __func__, fn);
9652 pci_dev_put(other_pdev);
9653 break;
9654 }
9655 pci_dev_put(other_pdev);
9656 }
9657 } else {
9658 /* this case is meant for ISP83xx/ISP84xx only */
9659 if (qla4_83xx_can_perform_reset(ha)) {
9660 /* reset fn as iSCSI is going to perform the reset */
9661 fn = 0;
9662 }
9663 }
9664
9665 /* The first function on the card, the reset owner will
9666 * start & initialize the firmware. The other functions
9667 * on the card will reset the firmware context
9668 */
9669 if (!fn) {
9670 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn being reset "
9671 "0x%x is the owner\n", ha->host_no, __func__,
9672 ha->pdev->devfn);
9673
9674 ha->isp_ops->idc_lock(ha);
9675 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9676 QLA8XXX_DEV_COLD);
9677 ha->isp_ops->idc_unlock(ha);
9678
9679 rval = qla4_8xxx_update_idc_reg(ha);
9680 if (rval == QLA_ERROR) {
9681 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: FAILED\n",
9682 ha->host_no, __func__);
9683 ha->isp_ops->idc_lock(ha);
9684 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9685 QLA8XXX_DEV_FAILED);
9686 ha->isp_ops->idc_unlock(ha);
9687 goto exit_error_recovery;
9688 }
9689
9690 clear_bit(AF_FW_RECOVERY, &ha->flags);
9691 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
9692
9693 if (rval != QLA_SUCCESS) {
9694 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: "
9695 "FAILED\n", ha->host_no, __func__);
9696 qla4xxx_free_irqs(ha);
9697 ha->isp_ops->idc_lock(ha);
9698 qla4_8xxx_clear_drv_active(ha);
9699 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9700 QLA8XXX_DEV_FAILED);
9701 ha->isp_ops->idc_unlock(ha);
9702 } else {
9703 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: "
9704 "READY\n", ha->host_no, __func__);
9705 ha->isp_ops->idc_lock(ha);
9706 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9707 QLA8XXX_DEV_READY);
9708 /* Clear driver state register */
9709 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_STATE, 0);
9710 qla4_8xxx_set_drv_active(ha);
9711 ha->isp_ops->idc_unlock(ha);
9712 ha->isp_ops->enable_intrs(ha);
9713 }
9714 } else {
9715 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn 0x%x is not "
9716 "the reset owner\n", ha->host_no, __func__,
9717 ha->pdev->devfn);
9718 if ((qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE) ==
9719 QLA8XXX_DEV_READY)) {
9720 clear_bit(AF_FW_RECOVERY, &ha->flags);
9721 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
9722 if (rval == QLA_SUCCESS)
9723 ha->isp_ops->enable_intrs(ha);
9724 else
9725 qla4xxx_free_irqs(ha);
9726
9727 ha->isp_ops->idc_lock(ha);
9728 qla4_8xxx_set_drv_active(ha);
9729 ha->isp_ops->idc_unlock(ha);
9730 }
9731 }
9732 exit_error_recovery:
9733 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
9734 return rval;
9735 }
9736
9737 static pci_ers_result_t
9738 qla4xxx_pci_slot_reset(struct pci_dev *pdev)
9739 {
9740 pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
9741 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9742 int rc;
9743
9744 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: slot_reset\n",
9745 ha->host_no, __func__);
9746
9747 if (!is_aer_supported(ha))
9748 return PCI_ERS_RESULT_NONE;
9749
9750 /* Restore the saved state of PCIe device -
9751 * BAR registers, PCI Config space, PCIX, MSI,
9752 * IOV states
9753 */
9754 pci_restore_state(pdev);
9755
9756 /* pci_restore_state() clears the saved_state flag of the device
9757 * save restored state which resets saved_state flag
9758 */
9759 pci_save_state(pdev);
9760
9761 /* Initialize device or resume if in suspended state */
9762 rc = pci_enable_device(pdev);
9763 if (rc) {
9764 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Can't re-enable "
9765 "device after reset\n", ha->host_no, __func__);
9766 goto exit_slot_reset;
9767 }
9768
9769 ha->isp_ops->disable_intrs(ha);
9770
9771 if (is_qla80XX(ha)) {
9772 if (qla4_8xxx_error_recovery(ha) == QLA_SUCCESS) {
9773 ret = PCI_ERS_RESULT_RECOVERED;
9774 goto exit_slot_reset;
9775 } else
9776 goto exit_slot_reset;
9777 }
9778
9779 exit_slot_reset:
9780 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Return=%x\n"
9781 "device after reset\n", ha->host_no, __func__, ret);
9782 return ret;
9783 }
9784
9785 static void
9786 qla4xxx_pci_resume(struct pci_dev *pdev)
9787 {
9788 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9789 int ret;
9790
9791 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: pci_resume\n",
9792 ha->host_no, __func__);
9793
9794 ret = qla4xxx_wait_for_hba_online(ha);
9795 if (ret != QLA_SUCCESS) {
9796 ql4_printk(KERN_ERR, ha, "scsi%ld: %s: the device failed to "
9797 "resume I/O from slot/link_reset\n", ha->host_no,
9798 __func__);
9799 }
9800
9801 pci_cleanup_aer_uncorrect_error_status(pdev);
9802 clear_bit(AF_EEH_BUSY, &ha->flags);
9803 }
9804
9805 static const struct pci_error_handlers qla4xxx_err_handler = {
9806 .error_detected = qla4xxx_pci_error_detected,
9807 .mmio_enabled = qla4xxx_pci_mmio_enabled,
9808 .slot_reset = qla4xxx_pci_slot_reset,
9809 .resume = qla4xxx_pci_resume,
9810 };
9811
9812 static struct pci_device_id qla4xxx_pci_tbl[] = {
9813 {
9814 .vendor = PCI_VENDOR_ID_QLOGIC,
9815 .device = PCI_DEVICE_ID_QLOGIC_ISP4010,
9816 .subvendor = PCI_ANY_ID,
9817 .subdevice = PCI_ANY_ID,
9818 },
9819 {
9820 .vendor = PCI_VENDOR_ID_QLOGIC,
9821 .device = PCI_DEVICE_ID_QLOGIC_ISP4022,
9822 .subvendor = PCI_ANY_ID,
9823 .subdevice = PCI_ANY_ID,
9824 },
9825 {
9826 .vendor = PCI_VENDOR_ID_QLOGIC,
9827 .device = PCI_DEVICE_ID_QLOGIC_ISP4032,
9828 .subvendor = PCI_ANY_ID,
9829 .subdevice = PCI_ANY_ID,
9830 },
9831 {
9832 .vendor = PCI_VENDOR_ID_QLOGIC,
9833 .device = PCI_DEVICE_ID_QLOGIC_ISP8022,
9834 .subvendor = PCI_ANY_ID,
9835 .subdevice = PCI_ANY_ID,
9836 },
9837 {
9838 .vendor = PCI_VENDOR_ID_QLOGIC,
9839 .device = PCI_DEVICE_ID_QLOGIC_ISP8324,
9840 .subvendor = PCI_ANY_ID,
9841 .subdevice = PCI_ANY_ID,
9842 },
9843 {
9844 .vendor = PCI_VENDOR_ID_QLOGIC,
9845 .device = PCI_DEVICE_ID_QLOGIC_ISP8042,
9846 .subvendor = PCI_ANY_ID,
9847 .subdevice = PCI_ANY_ID,
9848 },
9849 {0, 0},
9850 };
9851 MODULE_DEVICE_TABLE(pci, qla4xxx_pci_tbl);
9852
9853 static struct pci_driver qla4xxx_pci_driver = {
9854 .name = DRIVER_NAME,
9855 .id_table = qla4xxx_pci_tbl,
9856 .probe = qla4xxx_probe_adapter,
9857 .remove = qla4xxx_remove_adapter,
9858 .err_handler = &qla4xxx_err_handler,
9859 };
9860
9861 static int __init qla4xxx_module_init(void)
9862 {
9863 int ret;
9864
9865 if (ql4xqfulltracking)
9866 qla4xxx_driver_template.track_queue_depth = 1;
9867
9868 /* Allocate cache for SRBs. */
9869 srb_cachep = kmem_cache_create("qla4xxx_srbs", sizeof(struct srb), 0,
9870 SLAB_HWCACHE_ALIGN, NULL);
9871 if (srb_cachep == NULL) {
9872 printk(KERN_ERR
9873 "%s: Unable to allocate SRB cache..."
9874 "Failing load!\n", DRIVER_NAME);
9875 ret = -ENOMEM;
9876 goto no_srp_cache;
9877 }
9878
9879 /* Derive version string. */
9880 strcpy(qla4xxx_version_str, QLA4XXX_DRIVER_VERSION);
9881 if (ql4xextended_error_logging)
9882 strcat(qla4xxx_version_str, "-debug");
9883
9884 qla4xxx_scsi_transport =
9885 iscsi_register_transport(&qla4xxx_iscsi_transport);
9886 if (!qla4xxx_scsi_transport){
9887 ret = -ENODEV;
9888 goto release_srb_cache;
9889 }
9890
9891 ret = pci_register_driver(&qla4xxx_pci_driver);
9892 if (ret)
9893 goto unregister_transport;
9894
9895 printk(KERN_INFO "QLogic iSCSI HBA Driver\n");
9896 return 0;
9897
9898 unregister_transport:
9899 iscsi_unregister_transport(&qla4xxx_iscsi_transport);
9900 release_srb_cache:
9901 kmem_cache_destroy(srb_cachep);
9902 no_srp_cache:
9903 return ret;
9904 }
9905
9906 static void __exit qla4xxx_module_exit(void)
9907 {
9908 pci_unregister_driver(&qla4xxx_pci_driver);
9909 iscsi_unregister_transport(&qla4xxx_iscsi_transport);
9910 kmem_cache_destroy(srb_cachep);
9911 }
9912
9913 module_init(qla4xxx_module_init);
9914 module_exit(qla4xxx_module_exit);
9915
9916 MODULE_AUTHOR("QLogic Corporation");
9917 MODULE_DESCRIPTION("QLogic iSCSI HBA Driver");
9918 MODULE_LICENSE("GPL");
9919 MODULE_VERSION(QLA4XXX_DRIVER_VERSION);
Linux with added FPC-III support