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Merge tag 'regmap-fix-v5.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git...
[linux/fpc-iii.git] / drivers / scsi / qla4xxx / ql4_os.c
bloba4b014e1cd8c8a201712859b6007ae014067f8ef
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * QLogic iSCSI HBA Driver
4 * Copyright (c) 2003-2013 QLogic Corporation
5 */
6 #include <linux/moduleparam.h>
7 #include <linux/slab.h>
8 #include <linux/blkdev.h>
9 #include <linux/iscsi_boot_sysfs.h>
10 #include <linux/inet.h>
11
12 #include <scsi/scsi_tcq.h>
13 #include <scsi/scsicam.h>
14
15 #include "ql4_def.h"
16 #include "ql4_version.h"
17 #include "ql4_glbl.h"
18 #include "ql4_dbg.h"
19 #include "ql4_inline.h"
20 #include "ql4_83xx.h"
21
22 /*
23 * Driver version
24 */
25 static char qla4xxx_version_str[40];
26
27 /*
28 * SRB allocation cache
29 */
30 static struct kmem_cache *srb_cachep;
31
32 /*
33 * Module parameter information and variables
34 */
35 static int ql4xdisablesysfsboot = 1;
36 module_param(ql4xdisablesysfsboot, int, S_IRUGO | S_IWUSR);
37 MODULE_PARM_DESC(ql4xdisablesysfsboot,
38 " Set to disable exporting boot targets to sysfs.\n"
39 "\t\t 0 - Export boot targets\n"
40 "\t\t 1 - Do not export boot targets (Default)");
41
42 int ql4xdontresethba;
43 module_param(ql4xdontresethba, int, S_IRUGO | S_IWUSR);
44 MODULE_PARM_DESC(ql4xdontresethba,
45 " Don't reset the HBA for driver recovery.\n"
46 "\t\t 0 - It will reset HBA (Default)\n"
47 "\t\t 1 - It will NOT reset HBA");
48
49 int ql4xextended_error_logging;
50 module_param(ql4xextended_error_logging, int, S_IRUGO | S_IWUSR);
51 MODULE_PARM_DESC(ql4xextended_error_logging,
52 " Option to enable extended error logging.\n"
53 "\t\t 0 - no logging (Default)\n"
54 "\t\t 2 - debug logging");
55
56 int ql4xenablemsix = 1;
57 module_param(ql4xenablemsix, int, S_IRUGO|S_IWUSR);
58 MODULE_PARM_DESC(ql4xenablemsix,
59 " Set to enable MSI or MSI-X interrupt mechanism.\n"
60 "\t\t 0 = enable INTx interrupt mechanism.\n"
61 "\t\t 1 = enable MSI-X interrupt mechanism (Default).\n"
62 "\t\t 2 = enable MSI interrupt mechanism.");
63
64 #define QL4_DEF_QDEPTH 32
65 static int ql4xmaxqdepth = QL4_DEF_QDEPTH;
66 module_param(ql4xmaxqdepth, int, S_IRUGO | S_IWUSR);
67 MODULE_PARM_DESC(ql4xmaxqdepth,
68 " Maximum queue depth to report for target devices.\n"
69 "\t\t Default: 32.");
70
71 static int ql4xqfulltracking = 1;
72 module_param(ql4xqfulltracking, int, S_IRUGO | S_IWUSR);
73 MODULE_PARM_DESC(ql4xqfulltracking,
74 " Enable or disable dynamic tracking and adjustment of\n"
75 "\t\t scsi device queue depth.\n"
76 "\t\t 0 - Disable.\n"
77 "\t\t 1 - Enable. (Default)");
78
79 static int ql4xsess_recovery_tmo = QL4_SESS_RECOVERY_TMO;
80 module_param(ql4xsess_recovery_tmo, int, S_IRUGO);
81 MODULE_PARM_DESC(ql4xsess_recovery_tmo,
82 " Target Session Recovery Timeout.\n"
83 "\t\t Default: 120 sec.");
84
85 int ql4xmdcapmask = 0;
86 module_param(ql4xmdcapmask, int, S_IRUGO);
87 MODULE_PARM_DESC(ql4xmdcapmask,
88 " Set the Minidump driver capture mask level.\n"
89 "\t\t Default is 0 (firmware default capture mask)\n"
90 "\t\t Can be set to 0x3, 0x7, 0xF, 0x1F, 0x3F, 0x7F, 0xFF");
91
92 int ql4xenablemd = 1;
93 module_param(ql4xenablemd, int, S_IRUGO | S_IWUSR);
94 MODULE_PARM_DESC(ql4xenablemd,
95 " Set to enable minidump.\n"
96 "\t\t 0 - disable minidump\n"
97 "\t\t 1 - enable minidump (Default)");
98
99 static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha);
100 /*
101 * SCSI host template entry points
102 */
103 static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha);
104
105 /*
106 * iSCSI template entry points
107 */
108 static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess,
109 enum iscsi_param param, char *buf);
110 static int qla4xxx_conn_get_param(struct iscsi_cls_conn *conn,
111 enum iscsi_param param, char *buf);
112 static int qla4xxx_host_get_param(struct Scsi_Host *shost,
113 enum iscsi_host_param param, char *buf);
114 static int qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data,
115 uint32_t len);
116 static int qla4xxx_get_iface_param(struct iscsi_iface *iface,
117 enum iscsi_param_type param_type,
118 int param, char *buf);
119 static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc);
120 static struct iscsi_endpoint *qla4xxx_ep_connect(struct Scsi_Host *shost,
121 struct sockaddr *dst_addr,
122 int non_blocking);
123 static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms);
124 static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep);
125 static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep,
126 enum iscsi_param param, char *buf);
127 static int qla4xxx_conn_start(struct iscsi_cls_conn *conn);
128 static struct iscsi_cls_conn *
129 qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx);
130 static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session,
131 struct iscsi_cls_conn *cls_conn,
132 uint64_t transport_fd, int is_leading);
133 static void qla4xxx_conn_destroy(struct iscsi_cls_conn *conn);
134 static struct iscsi_cls_session *
135 qla4xxx_session_create(struct iscsi_endpoint *ep, uint16_t cmds_max,
136 uint16_t qdepth, uint32_t initial_cmdsn);
137 static void qla4xxx_session_destroy(struct iscsi_cls_session *sess);
138 static void qla4xxx_task_work(struct work_struct *wdata);
139 static int qla4xxx_alloc_pdu(struct iscsi_task *, uint8_t);
140 static int qla4xxx_task_xmit(struct iscsi_task *);
141 static void qla4xxx_task_cleanup(struct iscsi_task *);
142 static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session);
143 static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn,
144 struct iscsi_stats *stats);
145 static int qla4xxx_send_ping(struct Scsi_Host *shost, uint32_t iface_num,
146 uint32_t iface_type, uint32_t payload_size,
147 uint32_t pid, struct sockaddr *dst_addr);
148 static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx,
149 uint32_t *num_entries, char *buf);
150 static int qla4xxx_delete_chap(struct Scsi_Host *shost, uint16_t chap_tbl_idx);
151 static int qla4xxx_set_chap_entry(struct Scsi_Host *shost, void *data,
152 int len);
153 static int qla4xxx_get_host_stats(struct Scsi_Host *shost, char *buf, int len);
154
155 /*
156 * SCSI host template entry points
157 */
158 static int qla4xxx_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *cmd);
159 static int qla4xxx_eh_abort(struct scsi_cmnd *cmd);
160 static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd);
161 static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd);
162 static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd);
163 static int qla4xxx_slave_alloc(struct scsi_device *device);
164 static umode_t qla4_attr_is_visible(int param_type, int param);
165 static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type);
166
167 /*
168 * iSCSI Flash DDB sysfs entry points
169 */
170 static int
171 qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess,
172 struct iscsi_bus_flash_conn *fnode_conn,
173 void *data, int len);
174 static int
175 qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session *fnode_sess,
176 int param, char *buf);
177 static int qla4xxx_sysfs_ddb_add(struct Scsi_Host *shost, const char *buf,
178 int len);
179 static int
180 qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess);
181 static int qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess,
182 struct iscsi_bus_flash_conn *fnode_conn);
183 static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess,
184 struct iscsi_bus_flash_conn *fnode_conn);
185 static int qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess);
186
187 static struct qla4_8xxx_legacy_intr_set legacy_intr[] =
188 QLA82XX_LEGACY_INTR_CONFIG;
189
190 static const uint32_t qla4_82xx_reg_tbl[] = {
191 QLA82XX_PEG_HALT_STATUS1,
192 QLA82XX_PEG_HALT_STATUS2,
193 QLA82XX_PEG_ALIVE_COUNTER,
194 QLA82XX_CRB_DRV_ACTIVE,
195 QLA82XX_CRB_DEV_STATE,
196 QLA82XX_CRB_DRV_STATE,
197 QLA82XX_CRB_DRV_SCRATCH,
198 QLA82XX_CRB_DEV_PART_INFO,
199 QLA82XX_CRB_DRV_IDC_VERSION,
200 QLA82XX_FW_VERSION_MAJOR,
201 QLA82XX_FW_VERSION_MINOR,
202 QLA82XX_FW_VERSION_SUB,
203 CRB_CMDPEG_STATE,
204 CRB_TEMP_STATE,
205 };
206
207 static const uint32_t qla4_83xx_reg_tbl[] = {
208 QLA83XX_PEG_HALT_STATUS1,
209 QLA83XX_PEG_HALT_STATUS2,
210 QLA83XX_PEG_ALIVE_COUNTER,
211 QLA83XX_CRB_DRV_ACTIVE,
212 QLA83XX_CRB_DEV_STATE,
213 QLA83XX_CRB_DRV_STATE,
214 QLA83XX_CRB_DRV_SCRATCH,
215 QLA83XX_CRB_DEV_PART_INFO1,
216 QLA83XX_CRB_IDC_VER_MAJOR,
217 QLA83XX_FW_VER_MAJOR,
218 QLA83XX_FW_VER_MINOR,
219 QLA83XX_FW_VER_SUB,
220 QLA83XX_CMDPEG_STATE,
221 QLA83XX_ASIC_TEMP,
222 };
223
224 static struct scsi_host_template qla4xxx_driver_template = {
225 .module = THIS_MODULE,
226 .name = DRIVER_NAME,
227 .proc_name = DRIVER_NAME,
228 .queuecommand = qla4xxx_queuecommand,
229
230 .eh_abort_handler = qla4xxx_eh_abort,
231 .eh_device_reset_handler = qla4xxx_eh_device_reset,
232 .eh_target_reset_handler = qla4xxx_eh_target_reset,
233 .eh_host_reset_handler = qla4xxx_eh_host_reset,
234 .eh_timed_out = qla4xxx_eh_cmd_timed_out,
235
236 .slave_alloc = qla4xxx_slave_alloc,
237 .change_queue_depth = scsi_change_queue_depth,
238
239 .this_id = -1,
240 .cmd_per_lun = 3,
241 .sg_tablesize = SG_ALL,
242
243 .max_sectors = 0xFFFF,
244 .shost_attrs = qla4xxx_host_attrs,
245 .host_reset = qla4xxx_host_reset,
246 .vendor_id = SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC,
247 };
248
249 static struct iscsi_transport qla4xxx_iscsi_transport = {
250 .owner = THIS_MODULE,
251 .name = DRIVER_NAME,
252 .caps = CAP_TEXT_NEGO |
253 CAP_DATA_PATH_OFFLOAD | CAP_HDRDGST |
254 CAP_DATADGST | CAP_LOGIN_OFFLOAD |
255 CAP_MULTI_R2T,
256 .attr_is_visible = qla4_attr_is_visible,
257 .create_session = qla4xxx_session_create,
258 .destroy_session = qla4xxx_session_destroy,
259 .start_conn = qla4xxx_conn_start,
260 .create_conn = qla4xxx_conn_create,
261 .bind_conn = qla4xxx_conn_bind,
262 .stop_conn = iscsi_conn_stop,
263 .destroy_conn = qla4xxx_conn_destroy,
264 .set_param = iscsi_set_param,
265 .get_conn_param = qla4xxx_conn_get_param,
266 .get_session_param = qla4xxx_session_get_param,
267 .get_ep_param = qla4xxx_get_ep_param,
268 .ep_connect = qla4xxx_ep_connect,
269 .ep_poll = qla4xxx_ep_poll,
270 .ep_disconnect = qla4xxx_ep_disconnect,
271 .get_stats = qla4xxx_conn_get_stats,
272 .send_pdu = iscsi_conn_send_pdu,
273 .xmit_task = qla4xxx_task_xmit,
274 .cleanup_task = qla4xxx_task_cleanup,
275 .alloc_pdu = qla4xxx_alloc_pdu,
276
277 .get_host_param = qla4xxx_host_get_param,
278 .set_iface_param = qla4xxx_iface_set_param,
279 .get_iface_param = qla4xxx_get_iface_param,
280 .bsg_request = qla4xxx_bsg_request,
281 .send_ping = qla4xxx_send_ping,
282 .get_chap = qla4xxx_get_chap_list,
283 .delete_chap = qla4xxx_delete_chap,
284 .set_chap = qla4xxx_set_chap_entry,
285 .get_flashnode_param = qla4xxx_sysfs_ddb_get_param,
286 .set_flashnode_param = qla4xxx_sysfs_ddb_set_param,
287 .new_flashnode = qla4xxx_sysfs_ddb_add,
288 .del_flashnode = qla4xxx_sysfs_ddb_delete,
289 .login_flashnode = qla4xxx_sysfs_ddb_login,
290 .logout_flashnode = qla4xxx_sysfs_ddb_logout,
291 .logout_flashnode_sid = qla4xxx_sysfs_ddb_logout_sid,
292 .get_host_stats = qla4xxx_get_host_stats,
293 };
294
295 static struct scsi_transport_template *qla4xxx_scsi_transport;
296
297 static int qla4xxx_isp_check_reg(struct scsi_qla_host *ha)
298 {
299 u32 reg_val = 0;
300 int rval = QLA_SUCCESS;
301
302 if (is_qla8022(ha))
303 reg_val = readl(&ha->qla4_82xx_reg->host_status);
304 else if (is_qla8032(ha) || is_qla8042(ha))
305 reg_val = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_ALIVE_COUNTER);
306 else
307 reg_val = readw(&ha->reg->ctrl_status);
308
309 if (reg_val == QL4_ISP_REG_DISCONNECT)
310 rval = QLA_ERROR;
311
312 return rval;
313 }
314
315 static int qla4xxx_send_ping(struct Scsi_Host *shost, uint32_t iface_num,
316 uint32_t iface_type, uint32_t payload_size,
317 uint32_t pid, struct sockaddr *dst_addr)
318 {
319 struct scsi_qla_host *ha = to_qla_host(shost);
320 struct sockaddr_in *addr;
321 struct sockaddr_in6 *addr6;
322 uint32_t options = 0;
323 uint8_t ipaddr[IPv6_ADDR_LEN];
324 int rval;
325
326 memset(ipaddr, 0, IPv6_ADDR_LEN);
327 /* IPv4 to IPv4 */
328 if ((iface_type == ISCSI_IFACE_TYPE_IPV4) &&
329 (dst_addr->sa_family == AF_INET)) {
330 addr = (struct sockaddr_in *)dst_addr;
331 memcpy(ipaddr, &addr->sin_addr.s_addr, IP_ADDR_LEN);
332 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv4 Ping src: %pI4 "
333 "dest: %pI4\n", __func__,
334 &ha->ip_config.ip_address, ipaddr));
335 rval = qla4xxx_ping_iocb(ha, options, payload_size, pid,
336 ipaddr);
337 if (rval)
338 rval = -EINVAL;
339 } else if ((iface_type == ISCSI_IFACE_TYPE_IPV6) &&
340 (dst_addr->sa_family == AF_INET6)) {
341 /* IPv6 to IPv6 */
342 addr6 = (struct sockaddr_in6 *)dst_addr;
343 memcpy(ipaddr, &addr6->sin6_addr.in6_u.u6_addr8, IPv6_ADDR_LEN);
344
345 options |= PING_IPV6_PROTOCOL_ENABLE;
346
347 /* Ping using LinkLocal address */
348 if ((iface_num == 0) || (iface_num == 1)) {
349 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: LinkLocal Ping "
350 "src: %pI6 dest: %pI6\n", __func__,
351 &ha->ip_config.ipv6_link_local_addr,
352 ipaddr));
353 options |= PING_IPV6_LINKLOCAL_ADDR;
354 rval = qla4xxx_ping_iocb(ha, options, payload_size,
355 pid, ipaddr);
356 } else {
357 ql4_printk(KERN_WARNING, ha, "%s: iface num = %d "
358 "not supported\n", __func__, iface_num);
359 rval = -ENOSYS;
360 goto exit_send_ping;
361 }
362
363 /*
364 * If ping using LinkLocal address fails, try ping using
365 * IPv6 address
366 */
367 if (rval != QLA_SUCCESS) {
368 options &= ~PING_IPV6_LINKLOCAL_ADDR;
369 if (iface_num == 0) {
370 options |= PING_IPV6_ADDR0;
371 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv6 "
372 "Ping src: %pI6 "
373 "dest: %pI6\n", __func__,
374 &ha->ip_config.ipv6_addr0,
375 ipaddr));
376 } else if (iface_num == 1) {
377 options |= PING_IPV6_ADDR1;
378 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv6 "
379 "Ping src: %pI6 "
380 "dest: %pI6\n", __func__,
381 &ha->ip_config.ipv6_addr1,
382 ipaddr));
383 }
384 rval = qla4xxx_ping_iocb(ha, options, payload_size,
385 pid, ipaddr);
386 if (rval)
387 rval = -EINVAL;
388 }
389 } else
390 rval = -ENOSYS;
391 exit_send_ping:
392 return rval;
393 }
394
395 static umode_t qla4_attr_is_visible(int param_type, int param)
396 {
397 switch (param_type) {
398 case ISCSI_HOST_PARAM:
399 switch (param) {
400 case ISCSI_HOST_PARAM_HWADDRESS:
401 case ISCSI_HOST_PARAM_IPADDRESS:
402 case ISCSI_HOST_PARAM_INITIATOR_NAME:
403 case ISCSI_HOST_PARAM_PORT_STATE:
404 case ISCSI_HOST_PARAM_PORT_SPEED:
405 return S_IRUGO;
406 default:
407 return 0;
408 }
409 case ISCSI_PARAM:
410 switch (param) {
411 case ISCSI_PARAM_PERSISTENT_ADDRESS:
412 case ISCSI_PARAM_PERSISTENT_PORT:
413 case ISCSI_PARAM_CONN_ADDRESS:
414 case ISCSI_PARAM_CONN_PORT:
415 case ISCSI_PARAM_TARGET_NAME:
416 case ISCSI_PARAM_TPGT:
417 case ISCSI_PARAM_TARGET_ALIAS:
418 case ISCSI_PARAM_MAX_BURST:
419 case ISCSI_PARAM_MAX_R2T:
420 case ISCSI_PARAM_FIRST_BURST:
421 case ISCSI_PARAM_MAX_RECV_DLENGTH:
422 case ISCSI_PARAM_MAX_XMIT_DLENGTH:
423 case ISCSI_PARAM_IFACE_NAME:
424 case ISCSI_PARAM_CHAP_OUT_IDX:
425 case ISCSI_PARAM_CHAP_IN_IDX:
426 case ISCSI_PARAM_USERNAME:
427 case ISCSI_PARAM_PASSWORD:
428 case ISCSI_PARAM_USERNAME_IN:
429 case ISCSI_PARAM_PASSWORD_IN:
430 case ISCSI_PARAM_AUTO_SND_TGT_DISABLE:
431 case ISCSI_PARAM_DISCOVERY_SESS:
432 case ISCSI_PARAM_PORTAL_TYPE:
433 case ISCSI_PARAM_CHAP_AUTH_EN:
434 case ISCSI_PARAM_DISCOVERY_LOGOUT_EN:
435 case ISCSI_PARAM_BIDI_CHAP_EN:
436 case ISCSI_PARAM_DISCOVERY_AUTH_OPTIONAL:
437 case ISCSI_PARAM_DEF_TIME2WAIT:
438 case ISCSI_PARAM_DEF_TIME2RETAIN:
439 case ISCSI_PARAM_HDRDGST_EN:
440 case ISCSI_PARAM_DATADGST_EN:
441 case ISCSI_PARAM_INITIAL_R2T_EN:
442 case ISCSI_PARAM_IMM_DATA_EN:
443 case ISCSI_PARAM_PDU_INORDER_EN:
444 case ISCSI_PARAM_DATASEQ_INORDER_EN:
445 case ISCSI_PARAM_MAX_SEGMENT_SIZE:
446 case ISCSI_PARAM_TCP_TIMESTAMP_STAT:
447 case ISCSI_PARAM_TCP_WSF_DISABLE:
448 case ISCSI_PARAM_TCP_NAGLE_DISABLE:
449 case ISCSI_PARAM_TCP_TIMER_SCALE:
450 case ISCSI_PARAM_TCP_TIMESTAMP_EN:
451 case ISCSI_PARAM_TCP_XMIT_WSF:
452 case ISCSI_PARAM_TCP_RECV_WSF:
453 case ISCSI_PARAM_IP_FRAGMENT_DISABLE:
454 case ISCSI_PARAM_IPV4_TOS:
455 case ISCSI_PARAM_IPV6_TC:
456 case ISCSI_PARAM_IPV6_FLOW_LABEL:
457 case ISCSI_PARAM_IS_FW_ASSIGNED_IPV6:
458 case ISCSI_PARAM_KEEPALIVE_TMO:
459 case ISCSI_PARAM_LOCAL_PORT:
460 case ISCSI_PARAM_ISID:
461 case ISCSI_PARAM_TSID:
462 case ISCSI_PARAM_DEF_TASKMGMT_TMO:
463 case ISCSI_PARAM_ERL:
464 case ISCSI_PARAM_STATSN:
465 case ISCSI_PARAM_EXP_STATSN:
466 case ISCSI_PARAM_DISCOVERY_PARENT_IDX:
467 case ISCSI_PARAM_DISCOVERY_PARENT_TYPE:
468 case ISCSI_PARAM_LOCAL_IPADDR:
469 return S_IRUGO;
470 default:
471 return 0;
472 }
473 case ISCSI_NET_PARAM:
474 switch (param) {
475 case ISCSI_NET_PARAM_IPV4_ADDR:
476 case ISCSI_NET_PARAM_IPV4_SUBNET:
477 case ISCSI_NET_PARAM_IPV4_GW:
478 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
479 case ISCSI_NET_PARAM_IFACE_ENABLE:
480 case ISCSI_NET_PARAM_IPV6_LINKLOCAL:
481 case ISCSI_NET_PARAM_IPV6_ADDR:
482 case ISCSI_NET_PARAM_IPV6_ROUTER:
483 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG:
484 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG:
485 case ISCSI_NET_PARAM_VLAN_ID:
486 case ISCSI_NET_PARAM_VLAN_PRIORITY:
487 case ISCSI_NET_PARAM_VLAN_ENABLED:
488 case ISCSI_NET_PARAM_MTU:
489 case ISCSI_NET_PARAM_PORT:
490 case ISCSI_NET_PARAM_IPADDR_STATE:
491 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_STATE:
492 case ISCSI_NET_PARAM_IPV6_ROUTER_STATE:
493 case ISCSI_NET_PARAM_DELAYED_ACK_EN:
494 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE:
495 case ISCSI_NET_PARAM_TCP_WSF_DISABLE:
496 case ISCSI_NET_PARAM_TCP_WSF:
497 case ISCSI_NET_PARAM_TCP_TIMER_SCALE:
498 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN:
499 case ISCSI_NET_PARAM_CACHE_ID:
500 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN:
501 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN:
502 case ISCSI_NET_PARAM_IPV4_TOS_EN:
503 case ISCSI_NET_PARAM_IPV4_TOS:
504 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN:
505 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN:
506 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID:
507 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN:
508 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN:
509 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID:
510 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN:
511 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE:
512 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN:
513 case ISCSI_NET_PARAM_REDIRECT_EN:
514 case ISCSI_NET_PARAM_IPV4_TTL:
515 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN:
516 case ISCSI_NET_PARAM_IPV6_MLD_EN:
517 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL:
518 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS:
519 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT:
520 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO:
521 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME:
522 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO:
523 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT:
524 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU:
525 return S_IRUGO;
526 default:
527 return 0;
528 }
529 case ISCSI_IFACE_PARAM:
530 switch (param) {
531 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO:
532 case ISCSI_IFACE_PARAM_HDRDGST_EN:
533 case ISCSI_IFACE_PARAM_DATADGST_EN:
534 case ISCSI_IFACE_PARAM_IMM_DATA_EN:
535 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN:
536 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN:
537 case ISCSI_IFACE_PARAM_PDU_INORDER_EN:
538 case ISCSI_IFACE_PARAM_ERL:
539 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH:
540 case ISCSI_IFACE_PARAM_FIRST_BURST:
541 case ISCSI_IFACE_PARAM_MAX_R2T:
542 case ISCSI_IFACE_PARAM_MAX_BURST:
543 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN:
544 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN:
545 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL:
546 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN:
547 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN:
548 case ISCSI_IFACE_PARAM_INITIATOR_NAME:
549 return S_IRUGO;
550 default:
551 return 0;
552 }
553 case ISCSI_FLASHNODE_PARAM:
554 switch (param) {
555 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6:
556 case ISCSI_FLASHNODE_PORTAL_TYPE:
557 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE:
558 case ISCSI_FLASHNODE_DISCOVERY_SESS:
559 case ISCSI_FLASHNODE_ENTRY_EN:
560 case ISCSI_FLASHNODE_HDR_DGST_EN:
561 case ISCSI_FLASHNODE_DATA_DGST_EN:
562 case ISCSI_FLASHNODE_IMM_DATA_EN:
563 case ISCSI_FLASHNODE_INITIAL_R2T_EN:
564 case ISCSI_FLASHNODE_DATASEQ_INORDER:
565 case ISCSI_FLASHNODE_PDU_INORDER:
566 case ISCSI_FLASHNODE_CHAP_AUTH_EN:
567 case ISCSI_FLASHNODE_SNACK_REQ_EN:
568 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN:
569 case ISCSI_FLASHNODE_BIDI_CHAP_EN:
570 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL:
571 case ISCSI_FLASHNODE_ERL:
572 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT:
573 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE:
574 case ISCSI_FLASHNODE_TCP_WSF_DISABLE:
575 case ISCSI_FLASHNODE_TCP_TIMER_SCALE:
576 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN:
577 case ISCSI_FLASHNODE_IP_FRAG_DISABLE:
578 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH:
579 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH:
580 case ISCSI_FLASHNODE_FIRST_BURST:
581 case ISCSI_FLASHNODE_DEF_TIME2WAIT:
582 case ISCSI_FLASHNODE_DEF_TIME2RETAIN:
583 case ISCSI_FLASHNODE_MAX_R2T:
584 case ISCSI_FLASHNODE_KEEPALIVE_TMO:
585 case ISCSI_FLASHNODE_ISID:
586 case ISCSI_FLASHNODE_TSID:
587 case ISCSI_FLASHNODE_PORT:
588 case ISCSI_FLASHNODE_MAX_BURST:
589 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO:
590 case ISCSI_FLASHNODE_IPADDR:
591 case ISCSI_FLASHNODE_ALIAS:
592 case ISCSI_FLASHNODE_REDIRECT_IPADDR:
593 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE:
594 case ISCSI_FLASHNODE_LOCAL_PORT:
595 case ISCSI_FLASHNODE_IPV4_TOS:
596 case ISCSI_FLASHNODE_IPV6_TC:
597 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL:
598 case ISCSI_FLASHNODE_NAME:
599 case ISCSI_FLASHNODE_TPGT:
600 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6:
601 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX:
602 case ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE:
603 case ISCSI_FLASHNODE_TCP_XMIT_WSF:
604 case ISCSI_FLASHNODE_TCP_RECV_WSF:
605 case ISCSI_FLASHNODE_CHAP_OUT_IDX:
606 case ISCSI_FLASHNODE_USERNAME:
607 case ISCSI_FLASHNODE_PASSWORD:
608 case ISCSI_FLASHNODE_STATSN:
609 case ISCSI_FLASHNODE_EXP_STATSN:
610 case ISCSI_FLASHNODE_IS_BOOT_TGT:
611 return S_IRUGO;
612 default:
613 return 0;
614 }
615 }
616
617 return 0;
618 }
619
620 /**
621 * qla4xxx_create chap_list - Create CHAP list from FLASH
622 * @ha: pointer to adapter structure
623 *
624 * Read flash and make a list of CHAP entries, during login when a CHAP entry
625 * is received, it will be checked in this list. If entry exist then the CHAP
626 * entry index is set in the DDB. If CHAP entry does not exist in this list
627 * then a new entry is added in FLASH in CHAP table and the index obtained is
628 * used in the DDB.
629 **/
630 static void qla4xxx_create_chap_list(struct scsi_qla_host *ha)
631 {
632 int rval = 0;
633 uint8_t *chap_flash_data = NULL;
634 uint32_t offset;
635 dma_addr_t chap_dma;
636 uint32_t chap_size = 0;
637
638 if (is_qla40XX(ha))
639 chap_size = MAX_CHAP_ENTRIES_40XX *
640 sizeof(struct ql4_chap_table);
641 else /* Single region contains CHAP info for both
642 * ports which is divided into half for each port.
643 */
644 chap_size = ha->hw.flt_chap_size / 2;
645
646 chap_flash_data = dma_alloc_coherent(&ha->pdev->dev, chap_size,
647 &chap_dma, GFP_KERNEL);
648 if (!chap_flash_data) {
649 ql4_printk(KERN_ERR, ha, "No memory for chap_flash_data\n");
650 return;
651 }
652
653 if (is_qla40XX(ha)) {
654 offset = FLASH_CHAP_OFFSET;
655 } else {
656 offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2);
657 if (ha->port_num == 1)
658 offset += chap_size;
659 }
660
661 rval = qla4xxx_get_flash(ha, chap_dma, offset, chap_size);
662 if (rval != QLA_SUCCESS)
663 goto exit_chap_list;
664
665 if (ha->chap_list == NULL)
666 ha->chap_list = vmalloc(chap_size);
667 if (ha->chap_list == NULL) {
668 ql4_printk(KERN_ERR, ha, "No memory for ha->chap_list\n");
669 goto exit_chap_list;
670 }
671
672 memset(ha->chap_list, 0, chap_size);
673 memcpy(ha->chap_list, chap_flash_data, chap_size);
674
675 exit_chap_list:
676 dma_free_coherent(&ha->pdev->dev, chap_size, chap_flash_data, chap_dma);
677 }
678
679 static int qla4xxx_get_chap_by_index(struct scsi_qla_host *ha,
680 int16_t chap_index,
681 struct ql4_chap_table **chap_entry)
682 {
683 int rval = QLA_ERROR;
684 int max_chap_entries;
685
686 if (!ha->chap_list) {
687 ql4_printk(KERN_ERR, ha, "CHAP table cache is empty!\n");
688 goto exit_get_chap;
689 }
690
691 if (is_qla80XX(ha))
692 max_chap_entries = (ha->hw.flt_chap_size / 2) /
693 sizeof(struct ql4_chap_table);
694 else
695 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
696
697 if (chap_index > max_chap_entries) {
698 ql4_printk(KERN_ERR, ha, "Invalid Chap index\n");
699 goto exit_get_chap;
700 }
701
702 *chap_entry = (struct ql4_chap_table *)ha->chap_list + chap_index;
703 if ((*chap_entry)->cookie !=
704 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) {
705 *chap_entry = NULL;
706 } else {
707 rval = QLA_SUCCESS;
708 }
709
710 exit_get_chap:
711 return rval;
712 }
713
714 /**
715 * qla4xxx_find_free_chap_index - Find the first free chap index
716 * @ha: pointer to adapter structure
717 * @chap_index: CHAP index to be returned
718 *
719 * Find the first free chap index available in the chap table
720 *
721 * Note: Caller should acquire the chap lock before getting here.
722 **/
723 static int qla4xxx_find_free_chap_index(struct scsi_qla_host *ha,
724 uint16_t *chap_index)
725 {
726 int i, rval;
727 int free_index = -1;
728 int max_chap_entries = 0;
729 struct ql4_chap_table *chap_table;
730
731 if (is_qla80XX(ha))
732 max_chap_entries = (ha->hw.flt_chap_size / 2) /
733 sizeof(struct ql4_chap_table);
734 else
735 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
736
737 if (!ha->chap_list) {
738 ql4_printk(KERN_ERR, ha, "CHAP table cache is empty!\n");
739 rval = QLA_ERROR;
740 goto exit_find_chap;
741 }
742
743 for (i = 0; i < max_chap_entries; i++) {
744 chap_table = (struct ql4_chap_table *)ha->chap_list + i;
745
746 if ((chap_table->cookie !=
747 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) &&
748 (i > MAX_RESRV_CHAP_IDX)) {
749 free_index = i;
750 break;
751 }
752 }
753
754 if (free_index != -1) {
755 *chap_index = free_index;
756 rval = QLA_SUCCESS;
757 } else {
758 rval = QLA_ERROR;
759 }
760
761 exit_find_chap:
762 return rval;
763 }
764
765 static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx,
766 uint32_t *num_entries, char *buf)
767 {
768 struct scsi_qla_host *ha = to_qla_host(shost);
769 struct ql4_chap_table *chap_table;
770 struct iscsi_chap_rec *chap_rec;
771 int max_chap_entries = 0;
772 int valid_chap_entries = 0;
773 int ret = 0, i;
774
775 if (is_qla80XX(ha))
776 max_chap_entries = (ha->hw.flt_chap_size / 2) /
777 sizeof(struct ql4_chap_table);
778 else
779 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
780
781 ql4_printk(KERN_INFO, ha, "%s: num_entries = %d, CHAP idx = %d\n",
782 __func__, *num_entries, chap_tbl_idx);
783
784 if (!buf) {
785 ret = -ENOMEM;
786 goto exit_get_chap_list;
787 }
788
789 qla4xxx_create_chap_list(ha);
790
791 chap_rec = (struct iscsi_chap_rec *) buf;
792 mutex_lock(&ha->chap_sem);
793 for (i = chap_tbl_idx; i < max_chap_entries; i++) {
794 chap_table = (struct ql4_chap_table *)ha->chap_list + i;
795 if (chap_table->cookie !=
796 __constant_cpu_to_le16(CHAP_VALID_COOKIE))
797 continue;
798
799 chap_rec->chap_tbl_idx = i;
800 strlcpy(chap_rec->username, chap_table->name,
801 ISCSI_CHAP_AUTH_NAME_MAX_LEN);
802 strlcpy(chap_rec->password, chap_table->secret,
803 QL4_CHAP_MAX_SECRET_LEN);
804 chap_rec->password_length = chap_table->secret_len;
805
806 if (chap_table->flags & BIT_7) /* local */
807 chap_rec->chap_type = CHAP_TYPE_OUT;
808
809 if (chap_table->flags & BIT_6) /* peer */
810 chap_rec->chap_type = CHAP_TYPE_IN;
811
812 chap_rec++;
813
814 valid_chap_entries++;
815 if (valid_chap_entries == *num_entries)
816 break;
817 else
818 continue;
819 }
820 mutex_unlock(&ha->chap_sem);
821
822 exit_get_chap_list:
823 ql4_printk(KERN_INFO, ha, "%s: Valid CHAP Entries = %d\n",
824 __func__, valid_chap_entries);
825 *num_entries = valid_chap_entries;
826 return ret;
827 }
828
829 static int __qla4xxx_is_chap_active(struct device *dev, void *data)
830 {
831 int ret = 0;
832 uint16_t *chap_tbl_idx = (uint16_t *) data;
833 struct iscsi_cls_session *cls_session;
834 struct iscsi_session *sess;
835 struct ddb_entry *ddb_entry;
836
837 if (!iscsi_is_session_dev(dev))
838 goto exit_is_chap_active;
839
840 cls_session = iscsi_dev_to_session(dev);
841 sess = cls_session->dd_data;
842 ddb_entry = sess->dd_data;
843
844 if (iscsi_session_chkready(cls_session))
845 goto exit_is_chap_active;
846
847 if (ddb_entry->chap_tbl_idx == *chap_tbl_idx)
848 ret = 1;
849
850 exit_is_chap_active:
851 return ret;
852 }
853
854 static int qla4xxx_is_chap_active(struct Scsi_Host *shost,
855 uint16_t chap_tbl_idx)
856 {
857 int ret = 0;
858
859 ret = device_for_each_child(&shost->shost_gendev, &chap_tbl_idx,
860 __qla4xxx_is_chap_active);
861
862 return ret;
863 }
864
865 static int qla4xxx_delete_chap(struct Scsi_Host *shost, uint16_t chap_tbl_idx)
866 {
867 struct scsi_qla_host *ha = to_qla_host(shost);
868 struct ql4_chap_table *chap_table;
869 dma_addr_t chap_dma;
870 int max_chap_entries = 0;
871 uint32_t offset = 0;
872 uint32_t chap_size;
873 int ret = 0;
874
875 chap_table = dma_pool_zalloc(ha->chap_dma_pool, GFP_KERNEL, &chap_dma);
876 if (chap_table == NULL)
877 return -ENOMEM;
878
879 if (is_qla80XX(ha))
880 max_chap_entries = (ha->hw.flt_chap_size / 2) /
881 sizeof(struct ql4_chap_table);
882 else
883 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
884
885 if (chap_tbl_idx > max_chap_entries) {
886 ret = -EINVAL;
887 goto exit_delete_chap;
888 }
889
890 /* Check if chap index is in use.
891 * If chap is in use don't delet chap entry */
892 ret = qla4xxx_is_chap_active(shost, chap_tbl_idx);
893 if (ret) {
894 ql4_printk(KERN_INFO, ha, "CHAP entry %d is in use, cannot "
895 "delete from flash\n", chap_tbl_idx);
896 ret = -EBUSY;
897 goto exit_delete_chap;
898 }
899
900 chap_size = sizeof(struct ql4_chap_table);
901 if (is_qla40XX(ha))
902 offset = FLASH_CHAP_OFFSET | (chap_tbl_idx * chap_size);
903 else {
904 offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2);
905 /* flt_chap_size is CHAP table size for both ports
906 * so divide it by 2 to calculate the offset for second port
907 */
908 if (ha->port_num == 1)
909 offset += (ha->hw.flt_chap_size / 2);
910 offset += (chap_tbl_idx * chap_size);
911 }
912
913 ret = qla4xxx_get_flash(ha, chap_dma, offset, chap_size);
914 if (ret != QLA_SUCCESS) {
915 ret = -EINVAL;
916 goto exit_delete_chap;
917 }
918
919 DEBUG2(ql4_printk(KERN_INFO, ha, "Chap Cookie: x%x\n",
920 __le16_to_cpu(chap_table->cookie)));
921
922 if (__le16_to_cpu(chap_table->cookie) != CHAP_VALID_COOKIE) {
923 ql4_printk(KERN_ERR, ha, "No valid chap entry found\n");
924 goto exit_delete_chap;
925 }
926
927 chap_table->cookie = __constant_cpu_to_le16(0xFFFF);
928
929 offset = FLASH_CHAP_OFFSET |
930 (chap_tbl_idx * sizeof(struct ql4_chap_table));
931 ret = qla4xxx_set_flash(ha, chap_dma, offset, chap_size,
932 FLASH_OPT_RMW_COMMIT);
933 if (ret == QLA_SUCCESS && ha->chap_list) {
934 mutex_lock(&ha->chap_sem);
935 /* Update ha chap_list cache */
936 memcpy((struct ql4_chap_table *)ha->chap_list + chap_tbl_idx,
937 chap_table, sizeof(struct ql4_chap_table));
938 mutex_unlock(&ha->chap_sem);
939 }
940 if (ret != QLA_SUCCESS)
941 ret = -EINVAL;
942
943 exit_delete_chap:
944 dma_pool_free(ha->chap_dma_pool, chap_table, chap_dma);
945 return ret;
946 }
947
948 /**
949 * qla4xxx_set_chap_entry - Make chap entry with given information
950 * @shost: pointer to host
951 * @data: chap info - credentials, index and type to make chap entry
952 * @len: length of data
953 *
954 * Add or update chap entry with the given information
955 **/
956 static int qla4xxx_set_chap_entry(struct Scsi_Host *shost, void *data, int len)
957 {
958 struct scsi_qla_host *ha = to_qla_host(shost);
959 struct iscsi_chap_rec chap_rec;
960 struct ql4_chap_table *chap_entry = NULL;
961 struct iscsi_param_info *param_info;
962 struct nlattr *attr;
963 int max_chap_entries = 0;
964 int type;
965 int rem = len;
966 int rc = 0;
967 int size;
968
969 memset(&chap_rec, 0, sizeof(chap_rec));
970
971 nla_for_each_attr(attr, data, len, rem) {
972 param_info = nla_data(attr);
973
974 switch (param_info->param) {
975 case ISCSI_CHAP_PARAM_INDEX:
976 chap_rec.chap_tbl_idx = *(uint16_t *)param_info->value;
977 break;
978 case ISCSI_CHAP_PARAM_CHAP_TYPE:
979 chap_rec.chap_type = param_info->value[0];
980 break;
981 case ISCSI_CHAP_PARAM_USERNAME:
982 size = min_t(size_t, sizeof(chap_rec.username),
983 param_info->len);
984 memcpy(chap_rec.username, param_info->value, size);
985 break;
986 case ISCSI_CHAP_PARAM_PASSWORD:
987 size = min_t(size_t, sizeof(chap_rec.password),
988 param_info->len);
989 memcpy(chap_rec.password, param_info->value, size);
990 break;
991 case ISCSI_CHAP_PARAM_PASSWORD_LEN:
992 chap_rec.password_length = param_info->value[0];
993 break;
994 default:
995 ql4_printk(KERN_ERR, ha,
996 "%s: No such sysfs attribute\n", __func__);
997 rc = -ENOSYS;
998 goto exit_set_chap;
999 }
1000 }
1001
1002 if (chap_rec.chap_type == CHAP_TYPE_IN)
1003 type = BIDI_CHAP;
1004 else
1005 type = LOCAL_CHAP;
1006
1007 if (is_qla80XX(ha))
1008 max_chap_entries = (ha->hw.flt_chap_size / 2) /
1009 sizeof(struct ql4_chap_table);
1010 else
1011 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
1012
1013 mutex_lock(&ha->chap_sem);
1014 if (chap_rec.chap_tbl_idx < max_chap_entries) {
1015 rc = qla4xxx_get_chap_by_index(ha, chap_rec.chap_tbl_idx,
1016 &chap_entry);
1017 if (!rc) {
1018 if (!(type == qla4xxx_get_chap_type(chap_entry))) {
1019 ql4_printk(KERN_INFO, ha,
1020 "Type mismatch for CHAP entry %d\n",
1021 chap_rec.chap_tbl_idx);
1022 rc = -EINVAL;
1023 goto exit_unlock_chap;
1024 }
1025
1026 /* If chap index is in use then don't modify it */
1027 rc = qla4xxx_is_chap_active(shost,
1028 chap_rec.chap_tbl_idx);
1029 if (rc) {
1030 ql4_printk(KERN_INFO, ha,
1031 "CHAP entry %d is in use\n",
1032 chap_rec.chap_tbl_idx);
1033 rc = -EBUSY;
1034 goto exit_unlock_chap;
1035 }
1036 }
1037 } else {
1038 rc = qla4xxx_find_free_chap_index(ha, &chap_rec.chap_tbl_idx);
1039 if (rc) {
1040 ql4_printk(KERN_INFO, ha, "CHAP entry not available\n");
1041 rc = -EBUSY;
1042 goto exit_unlock_chap;
1043 }
1044 }
1045
1046 rc = qla4xxx_set_chap(ha, chap_rec.username, chap_rec.password,
1047 chap_rec.chap_tbl_idx, type);
1048
1049 exit_unlock_chap:
1050 mutex_unlock(&ha->chap_sem);
1051
1052 exit_set_chap:
1053 return rc;
1054 }
1055
1056
1057 static int qla4xxx_get_host_stats(struct Scsi_Host *shost, char *buf, int len)
1058 {
1059 struct scsi_qla_host *ha = to_qla_host(shost);
1060 struct iscsi_offload_host_stats *host_stats = NULL;
1061 int host_stats_size;
1062 int ret = 0;
1063 int ddb_idx = 0;
1064 struct ql_iscsi_stats *ql_iscsi_stats = NULL;
1065 int stats_size;
1066 dma_addr_t iscsi_stats_dma;
1067
1068 DEBUG2(ql4_printk(KERN_INFO, ha, "Func: %s\n", __func__));
1069
1070 host_stats_size = sizeof(struct iscsi_offload_host_stats);
1071
1072 if (host_stats_size != len) {
1073 ql4_printk(KERN_INFO, ha, "%s: host_stats size mismatch expected = %d, is = %d\n",
1074 __func__, len, host_stats_size);
1075 ret = -EINVAL;
1076 goto exit_host_stats;
1077 }
1078 host_stats = (struct iscsi_offload_host_stats *)buf;
1079
1080 if (!buf) {
1081 ret = -ENOMEM;
1082 goto exit_host_stats;
1083 }
1084
1085 stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats));
1086
1087 ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size,
1088 &iscsi_stats_dma, GFP_KERNEL);
1089 if (!ql_iscsi_stats) {
1090 ql4_printk(KERN_ERR, ha,
1091 "Unable to allocate memory for iscsi stats\n");
1092 ret = -ENOMEM;
1093 goto exit_host_stats;
1094 }
1095
1096 ret = qla4xxx_get_mgmt_data(ha, ddb_idx, stats_size,
1097 iscsi_stats_dma);
1098 if (ret != QLA_SUCCESS) {
1099 ql4_printk(KERN_ERR, ha,
1100 "Unable to retrieve iscsi stats\n");
1101 ret = -EIO;
1102 goto exit_host_stats;
1103 }
1104 host_stats->mactx_frames = le64_to_cpu(ql_iscsi_stats->mac_tx_frames);
1105 host_stats->mactx_bytes = le64_to_cpu(ql_iscsi_stats->mac_tx_bytes);
1106 host_stats->mactx_multicast_frames =
1107 le64_to_cpu(ql_iscsi_stats->mac_tx_multicast_frames);
1108 host_stats->mactx_broadcast_frames =
1109 le64_to_cpu(ql_iscsi_stats->mac_tx_broadcast_frames);
1110 host_stats->mactx_pause_frames =
1111 le64_to_cpu(ql_iscsi_stats->mac_tx_pause_frames);
1112 host_stats->mactx_control_frames =
1113 le64_to_cpu(ql_iscsi_stats->mac_tx_control_frames);
1114 host_stats->mactx_deferral =
1115 le64_to_cpu(ql_iscsi_stats->mac_tx_deferral);
1116 host_stats->mactx_excess_deferral =
1117 le64_to_cpu(ql_iscsi_stats->mac_tx_excess_deferral);
1118 host_stats->mactx_late_collision =
1119 le64_to_cpu(ql_iscsi_stats->mac_tx_late_collision);
1120 host_stats->mactx_abort = le64_to_cpu(ql_iscsi_stats->mac_tx_abort);
1121 host_stats->mactx_single_collision =
1122 le64_to_cpu(ql_iscsi_stats->mac_tx_single_collision);
1123 host_stats->mactx_multiple_collision =
1124 le64_to_cpu(ql_iscsi_stats->mac_tx_multiple_collision);
1125 host_stats->mactx_collision =
1126 le64_to_cpu(ql_iscsi_stats->mac_tx_collision);
1127 host_stats->mactx_frames_dropped =
1128 le64_to_cpu(ql_iscsi_stats->mac_tx_frames_dropped);
1129 host_stats->mactx_jumbo_frames =
1130 le64_to_cpu(ql_iscsi_stats->mac_tx_jumbo_frames);
1131 host_stats->macrx_frames = le64_to_cpu(ql_iscsi_stats->mac_rx_frames);
1132 host_stats->macrx_bytes = le64_to_cpu(ql_iscsi_stats->mac_rx_bytes);
1133 host_stats->macrx_unknown_control_frames =
1134 le64_to_cpu(ql_iscsi_stats->mac_rx_unknown_control_frames);
1135 host_stats->macrx_pause_frames =
1136 le64_to_cpu(ql_iscsi_stats->mac_rx_pause_frames);
1137 host_stats->macrx_control_frames =
1138 le64_to_cpu(ql_iscsi_stats->mac_rx_control_frames);
1139 host_stats->macrx_dribble =
1140 le64_to_cpu(ql_iscsi_stats->mac_rx_dribble);
1141 host_stats->macrx_frame_length_error =
1142 le64_to_cpu(ql_iscsi_stats->mac_rx_frame_length_error);
1143 host_stats->macrx_jabber = le64_to_cpu(ql_iscsi_stats->mac_rx_jabber);
1144 host_stats->macrx_carrier_sense_error =
1145 le64_to_cpu(ql_iscsi_stats->mac_rx_carrier_sense_error);
1146 host_stats->macrx_frame_discarded =
1147 le64_to_cpu(ql_iscsi_stats->mac_rx_frame_discarded);
1148 host_stats->macrx_frames_dropped =
1149 le64_to_cpu(ql_iscsi_stats->mac_rx_frames_dropped);
1150 host_stats->mac_crc_error = le64_to_cpu(ql_iscsi_stats->mac_crc_error);
1151 host_stats->mac_encoding_error =
1152 le64_to_cpu(ql_iscsi_stats->mac_encoding_error);
1153 host_stats->macrx_length_error_large =
1154 le64_to_cpu(ql_iscsi_stats->mac_rx_length_error_large);
1155 host_stats->macrx_length_error_small =
1156 le64_to_cpu(ql_iscsi_stats->mac_rx_length_error_small);
1157 host_stats->macrx_multicast_frames =
1158 le64_to_cpu(ql_iscsi_stats->mac_rx_multicast_frames);
1159 host_stats->macrx_broadcast_frames =
1160 le64_to_cpu(ql_iscsi_stats->mac_rx_broadcast_frames);
1161 host_stats->iptx_packets = le64_to_cpu(ql_iscsi_stats->ip_tx_packets);
1162 host_stats->iptx_bytes = le64_to_cpu(ql_iscsi_stats->ip_tx_bytes);
1163 host_stats->iptx_fragments =
1164 le64_to_cpu(ql_iscsi_stats->ip_tx_fragments);
1165 host_stats->iprx_packets = le64_to_cpu(ql_iscsi_stats->ip_rx_packets);
1166 host_stats->iprx_bytes = le64_to_cpu(ql_iscsi_stats->ip_rx_bytes);
1167 host_stats->iprx_fragments =
1168 le64_to_cpu(ql_iscsi_stats->ip_rx_fragments);
1169 host_stats->ip_datagram_reassembly =
1170 le64_to_cpu(ql_iscsi_stats->ip_datagram_reassembly);
1171 host_stats->ip_invalid_address_error =
1172 le64_to_cpu(ql_iscsi_stats->ip_invalid_address_error);
1173 host_stats->ip_error_packets =
1174 le64_to_cpu(ql_iscsi_stats->ip_error_packets);
1175 host_stats->ip_fragrx_overlap =
1176 le64_to_cpu(ql_iscsi_stats->ip_fragrx_overlap);
1177 host_stats->ip_fragrx_outoforder =
1178 le64_to_cpu(ql_iscsi_stats->ip_fragrx_outoforder);
1179 host_stats->ip_datagram_reassembly_timeout =
1180 le64_to_cpu(ql_iscsi_stats->ip_datagram_reassembly_timeout);
1181 host_stats->ipv6tx_packets =
1182 le64_to_cpu(ql_iscsi_stats->ipv6_tx_packets);
1183 host_stats->ipv6tx_bytes = le64_to_cpu(ql_iscsi_stats->ipv6_tx_bytes);
1184 host_stats->ipv6tx_fragments =
1185 le64_to_cpu(ql_iscsi_stats->ipv6_tx_fragments);
1186 host_stats->ipv6rx_packets =
1187 le64_to_cpu(ql_iscsi_stats->ipv6_rx_packets);
1188 host_stats->ipv6rx_bytes = le64_to_cpu(ql_iscsi_stats->ipv6_rx_bytes);
1189 host_stats->ipv6rx_fragments =
1190 le64_to_cpu(ql_iscsi_stats->ipv6_rx_fragments);
1191 host_stats->ipv6_datagram_reassembly =
1192 le64_to_cpu(ql_iscsi_stats->ipv6_datagram_reassembly);
1193 host_stats->ipv6_invalid_address_error =
1194 le64_to_cpu(ql_iscsi_stats->ipv6_invalid_address_error);
1195 host_stats->ipv6_error_packets =
1196 le64_to_cpu(ql_iscsi_stats->ipv6_error_packets);
1197 host_stats->ipv6_fragrx_overlap =
1198 le64_to_cpu(ql_iscsi_stats->ipv6_fragrx_overlap);
1199 host_stats->ipv6_fragrx_outoforder =
1200 le64_to_cpu(ql_iscsi_stats->ipv6_fragrx_outoforder);
1201 host_stats->ipv6_datagram_reassembly_timeout =
1202 le64_to_cpu(ql_iscsi_stats->ipv6_datagram_reassembly_timeout);
1203 host_stats->tcptx_segments =
1204 le64_to_cpu(ql_iscsi_stats->tcp_tx_segments);
1205 host_stats->tcptx_bytes = le64_to_cpu(ql_iscsi_stats->tcp_tx_bytes);
1206 host_stats->tcprx_segments =
1207 le64_to_cpu(ql_iscsi_stats->tcp_rx_segments);
1208 host_stats->tcprx_byte = le64_to_cpu(ql_iscsi_stats->tcp_rx_byte);
1209 host_stats->tcp_duplicate_ack_retx =
1210 le64_to_cpu(ql_iscsi_stats->tcp_duplicate_ack_retx);
1211 host_stats->tcp_retx_timer_expired =
1212 le64_to_cpu(ql_iscsi_stats->tcp_retx_timer_expired);
1213 host_stats->tcprx_duplicate_ack =
1214 le64_to_cpu(ql_iscsi_stats->tcp_rx_duplicate_ack);
1215 host_stats->tcprx_pure_ackr =
1216 le64_to_cpu(ql_iscsi_stats->tcp_rx_pure_ackr);
1217 host_stats->tcptx_delayed_ack =
1218 le64_to_cpu(ql_iscsi_stats->tcp_tx_delayed_ack);
1219 host_stats->tcptx_pure_ack =
1220 le64_to_cpu(ql_iscsi_stats->tcp_tx_pure_ack);
1221 host_stats->tcprx_segment_error =
1222 le64_to_cpu(ql_iscsi_stats->tcp_rx_segment_error);
1223 host_stats->tcprx_segment_outoforder =
1224 le64_to_cpu(ql_iscsi_stats->tcp_rx_segment_outoforder);
1225 host_stats->tcprx_window_probe =
1226 le64_to_cpu(ql_iscsi_stats->tcp_rx_window_probe);
1227 host_stats->tcprx_window_update =
1228 le64_to_cpu(ql_iscsi_stats->tcp_rx_window_update);
1229 host_stats->tcptx_window_probe_persist =
1230 le64_to_cpu(ql_iscsi_stats->tcp_tx_window_probe_persist);
1231 host_stats->ecc_error_correction =
1232 le64_to_cpu(ql_iscsi_stats->ecc_error_correction);
1233 host_stats->iscsi_pdu_tx = le64_to_cpu(ql_iscsi_stats->iscsi_pdu_tx);
1234 host_stats->iscsi_data_bytes_tx =
1235 le64_to_cpu(ql_iscsi_stats->iscsi_data_bytes_tx);
1236 host_stats->iscsi_pdu_rx = le64_to_cpu(ql_iscsi_stats->iscsi_pdu_rx);
1237 host_stats->iscsi_data_bytes_rx =
1238 le64_to_cpu(ql_iscsi_stats->iscsi_data_bytes_rx);
1239 host_stats->iscsi_io_completed =
1240 le64_to_cpu(ql_iscsi_stats->iscsi_io_completed);
1241 host_stats->iscsi_unexpected_io_rx =
1242 le64_to_cpu(ql_iscsi_stats->iscsi_unexpected_io_rx);
1243 host_stats->iscsi_format_error =
1244 le64_to_cpu(ql_iscsi_stats->iscsi_format_error);
1245 host_stats->iscsi_hdr_digest_error =
1246 le64_to_cpu(ql_iscsi_stats->iscsi_hdr_digest_error);
1247 host_stats->iscsi_data_digest_error =
1248 le64_to_cpu(ql_iscsi_stats->iscsi_data_digest_error);
1249 host_stats->iscsi_sequence_error =
1250 le64_to_cpu(ql_iscsi_stats->iscsi_sequence_error);
1251 exit_host_stats:
1252 if (ql_iscsi_stats)
1253 dma_free_coherent(&ha->pdev->dev, stats_size,
1254 ql_iscsi_stats, iscsi_stats_dma);
1255
1256 ql4_printk(KERN_INFO, ha, "%s: Get host stats done\n",
1257 __func__);
1258 return ret;
1259 }
1260
1261 static int qla4xxx_get_iface_param(struct iscsi_iface *iface,
1262 enum iscsi_param_type param_type,
1263 int param, char *buf)
1264 {
1265 struct Scsi_Host *shost = iscsi_iface_to_shost(iface);
1266 struct scsi_qla_host *ha = to_qla_host(shost);
1267 int ival;
1268 char *pval = NULL;
1269 int len = -ENOSYS;
1270
1271 if (param_type == ISCSI_NET_PARAM) {
1272 switch (param) {
1273 case ISCSI_NET_PARAM_IPV4_ADDR:
1274 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address);
1275 break;
1276 case ISCSI_NET_PARAM_IPV4_SUBNET:
1277 len = sprintf(buf, "%pI4\n",
1278 &ha->ip_config.subnet_mask);
1279 break;
1280 case ISCSI_NET_PARAM_IPV4_GW:
1281 len = sprintf(buf, "%pI4\n", &ha->ip_config.gateway);
1282 break;
1283 case ISCSI_NET_PARAM_IFACE_ENABLE:
1284 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1285 OP_STATE(ha->ip_config.ipv4_options,
1286 IPOPT_IPV4_PROTOCOL_ENABLE, pval);
1287 } else {
1288 OP_STATE(ha->ip_config.ipv6_options,
1289 IPV6_OPT_IPV6_PROTOCOL_ENABLE, pval);
1290 }
1291
1292 len = sprintf(buf, "%s\n", pval);
1293 break;
1294 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
1295 len = sprintf(buf, "%s\n",
1296 (ha->ip_config.tcp_options &
1297 TCPOPT_DHCP_ENABLE) ?
1298 "dhcp" : "static");
1299 break;
1300 case ISCSI_NET_PARAM_IPV6_ADDR:
1301 if (iface->iface_num == 0)
1302 len = sprintf(buf, "%pI6\n",
1303 &ha->ip_config.ipv6_addr0);
1304 if (iface->iface_num == 1)
1305 len = sprintf(buf, "%pI6\n",
1306 &ha->ip_config.ipv6_addr1);
1307 break;
1308 case ISCSI_NET_PARAM_IPV6_LINKLOCAL:
1309 len = sprintf(buf, "%pI6\n",
1310 &ha->ip_config.ipv6_link_local_addr);
1311 break;
1312 case ISCSI_NET_PARAM_IPV6_ROUTER:
1313 len = sprintf(buf, "%pI6\n",
1314 &ha->ip_config.ipv6_default_router_addr);
1315 break;
1316 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG:
1317 pval = (ha->ip_config.ipv6_addl_options &
1318 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE) ?
1319 "nd" : "static";
1320
1321 len = sprintf(buf, "%s\n", pval);
1322 break;
1323 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG:
1324 pval = (ha->ip_config.ipv6_addl_options &
1325 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR) ?
1326 "auto" : "static";
1327
1328 len = sprintf(buf, "%s\n", pval);
1329 break;
1330 case ISCSI_NET_PARAM_VLAN_ID:
1331 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1332 ival = ha->ip_config.ipv4_vlan_tag &
1333 ISCSI_MAX_VLAN_ID;
1334 else
1335 ival = ha->ip_config.ipv6_vlan_tag &
1336 ISCSI_MAX_VLAN_ID;
1337
1338 len = sprintf(buf, "%d\n", ival);
1339 break;
1340 case ISCSI_NET_PARAM_VLAN_PRIORITY:
1341 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1342 ival = (ha->ip_config.ipv4_vlan_tag >> 13) &
1343 ISCSI_MAX_VLAN_PRIORITY;
1344 else
1345 ival = (ha->ip_config.ipv6_vlan_tag >> 13) &
1346 ISCSI_MAX_VLAN_PRIORITY;
1347
1348 len = sprintf(buf, "%d\n", ival);
1349 break;
1350 case ISCSI_NET_PARAM_VLAN_ENABLED:
1351 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1352 OP_STATE(ha->ip_config.ipv4_options,
1353 IPOPT_VLAN_TAGGING_ENABLE, pval);
1354 } else {
1355 OP_STATE(ha->ip_config.ipv6_options,
1356 IPV6_OPT_VLAN_TAGGING_ENABLE, pval);
1357 }
1358 len = sprintf(buf, "%s\n", pval);
1359 break;
1360 case ISCSI_NET_PARAM_MTU:
1361 len = sprintf(buf, "%d\n", ha->ip_config.eth_mtu_size);
1362 break;
1363 case ISCSI_NET_PARAM_PORT:
1364 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1365 len = sprintf(buf, "%d\n",
1366 ha->ip_config.ipv4_port);
1367 else
1368 len = sprintf(buf, "%d\n",
1369 ha->ip_config.ipv6_port);
1370 break;
1371 case ISCSI_NET_PARAM_IPADDR_STATE:
1372 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1373 pval = iscsi_get_ipaddress_state_name(
1374 ha->ip_config.ipv4_addr_state);
1375 } else {
1376 if (iface->iface_num == 0)
1377 pval = iscsi_get_ipaddress_state_name(
1378 ha->ip_config.ipv6_addr0_state);
1379 else if (iface->iface_num == 1)
1380 pval = iscsi_get_ipaddress_state_name(
1381 ha->ip_config.ipv6_addr1_state);
1382 }
1383
1384 len = sprintf(buf, "%s\n", pval);
1385 break;
1386 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_STATE:
1387 pval = iscsi_get_ipaddress_state_name(
1388 ha->ip_config.ipv6_link_local_state);
1389 len = sprintf(buf, "%s\n", pval);
1390 break;
1391 case ISCSI_NET_PARAM_IPV6_ROUTER_STATE:
1392 pval = iscsi_get_router_state_name(
1393 ha->ip_config.ipv6_default_router_state);
1394 len = sprintf(buf, "%s\n", pval);
1395 break;
1396 case ISCSI_NET_PARAM_DELAYED_ACK_EN:
1397 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1398 OP_STATE(~ha->ip_config.tcp_options,
1399 TCPOPT_DELAYED_ACK_DISABLE, pval);
1400 } else {
1401 OP_STATE(~ha->ip_config.ipv6_tcp_options,
1402 IPV6_TCPOPT_DELAYED_ACK_DISABLE, pval);
1403 }
1404 len = sprintf(buf, "%s\n", pval);
1405 break;
1406 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE:
1407 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1408 OP_STATE(~ha->ip_config.tcp_options,
1409 TCPOPT_NAGLE_ALGO_DISABLE, pval);
1410 } else {
1411 OP_STATE(~ha->ip_config.ipv6_tcp_options,
1412 IPV6_TCPOPT_NAGLE_ALGO_DISABLE, pval);
1413 }
1414 len = sprintf(buf, "%s\n", pval);
1415 break;
1416 case ISCSI_NET_PARAM_TCP_WSF_DISABLE:
1417 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1418 OP_STATE(~ha->ip_config.tcp_options,
1419 TCPOPT_WINDOW_SCALE_DISABLE, pval);
1420 } else {
1421 OP_STATE(~ha->ip_config.ipv6_tcp_options,
1422 IPV6_TCPOPT_WINDOW_SCALE_DISABLE,
1423 pval);
1424 }
1425 len = sprintf(buf, "%s\n", pval);
1426 break;
1427 case ISCSI_NET_PARAM_TCP_WSF:
1428 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1429 len = sprintf(buf, "%d\n",
1430 ha->ip_config.tcp_wsf);
1431 else
1432 len = sprintf(buf, "%d\n",
1433 ha->ip_config.ipv6_tcp_wsf);
1434 break;
1435 case ISCSI_NET_PARAM_TCP_TIMER_SCALE:
1436 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1437 ival = (ha->ip_config.tcp_options &
1438 TCPOPT_TIMER_SCALE) >> 1;
1439 else
1440 ival = (ha->ip_config.ipv6_tcp_options &
1441 IPV6_TCPOPT_TIMER_SCALE) >> 1;
1442
1443 len = sprintf(buf, "%d\n", ival);
1444 break;
1445 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN:
1446 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1447 OP_STATE(ha->ip_config.tcp_options,
1448 TCPOPT_TIMESTAMP_ENABLE, pval);
1449 } else {
1450 OP_STATE(ha->ip_config.ipv6_tcp_options,
1451 IPV6_TCPOPT_TIMESTAMP_EN, pval);
1452 }
1453 len = sprintf(buf, "%s\n", pval);
1454 break;
1455 case ISCSI_NET_PARAM_CACHE_ID:
1456 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1457 len = sprintf(buf, "%d\n",
1458 ha->ip_config.ipv4_cache_id);
1459 else
1460 len = sprintf(buf, "%d\n",
1461 ha->ip_config.ipv6_cache_id);
1462 break;
1463 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN:
1464 OP_STATE(ha->ip_config.tcp_options,
1465 TCPOPT_DNS_SERVER_IP_EN, pval);
1466
1467 len = sprintf(buf, "%s\n", pval);
1468 break;
1469 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN:
1470 OP_STATE(ha->ip_config.tcp_options,
1471 TCPOPT_SLP_DA_INFO_EN, pval);
1472
1473 len = sprintf(buf, "%s\n", pval);
1474 break;
1475 case ISCSI_NET_PARAM_IPV4_TOS_EN:
1476 OP_STATE(ha->ip_config.ipv4_options,
1477 IPOPT_IPV4_TOS_EN, pval);
1478
1479 len = sprintf(buf, "%s\n", pval);
1480 break;
1481 case ISCSI_NET_PARAM_IPV4_TOS:
1482 len = sprintf(buf, "%d\n", ha->ip_config.ipv4_tos);
1483 break;
1484 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN:
1485 OP_STATE(ha->ip_config.ipv4_options,
1486 IPOPT_GRAT_ARP_EN, pval);
1487
1488 len = sprintf(buf, "%s\n", pval);
1489 break;
1490 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN:
1491 OP_STATE(ha->ip_config.ipv4_options, IPOPT_ALT_CID_EN,
1492 pval);
1493
1494 len = sprintf(buf, "%s\n", pval);
1495 break;
1496 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID:
1497 pval = (ha->ip_config.ipv4_alt_cid_len) ?
1498 (char *)ha->ip_config.ipv4_alt_cid : "";
1499
1500 len = sprintf(buf, "%s\n", pval);
1501 break;
1502 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN:
1503 OP_STATE(ha->ip_config.ipv4_options,
1504 IPOPT_REQ_VID_EN, pval);
1505
1506 len = sprintf(buf, "%s\n", pval);
1507 break;
1508 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN:
1509 OP_STATE(ha->ip_config.ipv4_options,
1510 IPOPT_USE_VID_EN, pval);
1511
1512 len = sprintf(buf, "%s\n", pval);
1513 break;
1514 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID:
1515 pval = (ha->ip_config.ipv4_vid_len) ?
1516 (char *)ha->ip_config.ipv4_vid : "";
1517
1518 len = sprintf(buf, "%s\n", pval);
1519 break;
1520 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN:
1521 OP_STATE(ha->ip_config.ipv4_options,
1522 IPOPT_LEARN_IQN_EN, pval);
1523
1524 len = sprintf(buf, "%s\n", pval);
1525 break;
1526 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE:
1527 OP_STATE(~ha->ip_config.ipv4_options,
1528 IPOPT_FRAGMENTATION_DISABLE, pval);
1529
1530 len = sprintf(buf, "%s\n", pval);
1531 break;
1532 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN:
1533 OP_STATE(ha->ip_config.ipv4_options,
1534 IPOPT_IN_FORWARD_EN, pval);
1535
1536 len = sprintf(buf, "%s\n", pval);
1537 break;
1538 case ISCSI_NET_PARAM_REDIRECT_EN:
1539 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1540 OP_STATE(ha->ip_config.ipv4_options,
1541 IPOPT_ARP_REDIRECT_EN, pval);
1542 } else {
1543 OP_STATE(ha->ip_config.ipv6_options,
1544 IPV6_OPT_REDIRECT_EN, pval);
1545 }
1546 len = sprintf(buf, "%s\n", pval);
1547 break;
1548 case ISCSI_NET_PARAM_IPV4_TTL:
1549 len = sprintf(buf, "%d\n", ha->ip_config.ipv4_ttl);
1550 break;
1551 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN:
1552 OP_STATE(ha->ip_config.ipv6_options,
1553 IPV6_OPT_GRAT_NEIGHBOR_ADV_EN, pval);
1554
1555 len = sprintf(buf, "%s\n", pval);
1556 break;
1557 case ISCSI_NET_PARAM_IPV6_MLD_EN:
1558 OP_STATE(ha->ip_config.ipv6_addl_options,
1559 IPV6_ADDOPT_MLD_EN, pval);
1560
1561 len = sprintf(buf, "%s\n", pval);
1562 break;
1563 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL:
1564 len = sprintf(buf, "%u\n", ha->ip_config.ipv6_flow_lbl);
1565 break;
1566 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS:
1567 len = sprintf(buf, "%d\n",
1568 ha->ip_config.ipv6_traffic_class);
1569 break;
1570 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT:
1571 len = sprintf(buf, "%d\n",
1572 ha->ip_config.ipv6_hop_limit);
1573 break;
1574 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO:
1575 len = sprintf(buf, "%d\n",
1576 ha->ip_config.ipv6_nd_reach_time);
1577 break;
1578 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME:
1579 len = sprintf(buf, "%d\n",
1580 ha->ip_config.ipv6_nd_rexmit_timer);
1581 break;
1582 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO:
1583 len = sprintf(buf, "%d\n",
1584 ha->ip_config.ipv6_nd_stale_timeout);
1585 break;
1586 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT:
1587 len = sprintf(buf, "%d\n",
1588 ha->ip_config.ipv6_dup_addr_detect_count);
1589 break;
1590 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU:
1591 len = sprintf(buf, "%d\n",
1592 ha->ip_config.ipv6_gw_advrt_mtu);
1593 break;
1594 default:
1595 len = -ENOSYS;
1596 }
1597 } else if (param_type == ISCSI_IFACE_PARAM) {
1598 switch (param) {
1599 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO:
1600 len = sprintf(buf, "%d\n", ha->ip_config.def_timeout);
1601 break;
1602 case ISCSI_IFACE_PARAM_HDRDGST_EN:
1603 OP_STATE(ha->ip_config.iscsi_options,
1604 ISCSIOPTS_HEADER_DIGEST_EN, pval);
1605
1606 len = sprintf(buf, "%s\n", pval);
1607 break;
1608 case ISCSI_IFACE_PARAM_DATADGST_EN:
1609 OP_STATE(ha->ip_config.iscsi_options,
1610 ISCSIOPTS_DATA_DIGEST_EN, pval);
1611
1612 len = sprintf(buf, "%s\n", pval);
1613 break;
1614 case ISCSI_IFACE_PARAM_IMM_DATA_EN:
1615 OP_STATE(ha->ip_config.iscsi_options,
1616 ISCSIOPTS_IMMEDIATE_DATA_EN, pval);
1617
1618 len = sprintf(buf, "%s\n", pval);
1619 break;
1620 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN:
1621 OP_STATE(ha->ip_config.iscsi_options,
1622 ISCSIOPTS_INITIAL_R2T_EN, pval);
1623
1624 len = sprintf(buf, "%s\n", pval);
1625 break;
1626 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN:
1627 OP_STATE(ha->ip_config.iscsi_options,
1628 ISCSIOPTS_DATA_SEQ_INORDER_EN, pval);
1629
1630 len = sprintf(buf, "%s\n", pval);
1631 break;
1632 case ISCSI_IFACE_PARAM_PDU_INORDER_EN:
1633 OP_STATE(ha->ip_config.iscsi_options,
1634 ISCSIOPTS_DATA_PDU_INORDER_EN, pval);
1635
1636 len = sprintf(buf, "%s\n", pval);
1637 break;
1638 case ISCSI_IFACE_PARAM_ERL:
1639 len = sprintf(buf, "%d\n",
1640 (ha->ip_config.iscsi_options &
1641 ISCSIOPTS_ERL));
1642 break;
1643 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH:
1644 len = sprintf(buf, "%u\n",
1645 ha->ip_config.iscsi_max_pdu_size *
1646 BYTE_UNITS);
1647 break;
1648 case ISCSI_IFACE_PARAM_FIRST_BURST:
1649 len = sprintf(buf, "%u\n",
1650 ha->ip_config.iscsi_first_burst_len *
1651 BYTE_UNITS);
1652 break;
1653 case ISCSI_IFACE_PARAM_MAX_R2T:
1654 len = sprintf(buf, "%d\n",
1655 ha->ip_config.iscsi_max_outstnd_r2t);
1656 break;
1657 case ISCSI_IFACE_PARAM_MAX_BURST:
1658 len = sprintf(buf, "%u\n",
1659 ha->ip_config.iscsi_max_burst_len *
1660 BYTE_UNITS);
1661 break;
1662 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN:
1663 OP_STATE(ha->ip_config.iscsi_options,
1664 ISCSIOPTS_CHAP_AUTH_EN, pval);
1665
1666 len = sprintf(buf, "%s\n", pval);
1667 break;
1668 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN:
1669 OP_STATE(ha->ip_config.iscsi_options,
1670 ISCSIOPTS_BIDI_CHAP_EN, pval);
1671
1672 len = sprintf(buf, "%s\n", pval);
1673 break;
1674 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL:
1675 OP_STATE(ha->ip_config.iscsi_options,
1676 ISCSIOPTS_DISCOVERY_AUTH_EN, pval);
1677
1678 len = sprintf(buf, "%s\n", pval);
1679 break;
1680 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN:
1681 OP_STATE(ha->ip_config.iscsi_options,
1682 ISCSIOPTS_DISCOVERY_LOGOUT_EN, pval);
1683
1684 len = sprintf(buf, "%s\n", pval);
1685 break;
1686 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN:
1687 OP_STATE(ha->ip_config.iscsi_options,
1688 ISCSIOPTS_STRICT_LOGIN_COMP_EN, pval);
1689
1690 len = sprintf(buf, "%s\n", pval);
1691 break;
1692 case ISCSI_IFACE_PARAM_INITIATOR_NAME:
1693 len = sprintf(buf, "%s\n", ha->ip_config.iscsi_name);
1694 break;
1695 default:
1696 len = -ENOSYS;
1697 }
1698 }
1699
1700 return len;
1701 }
1702
1703 static struct iscsi_endpoint *
1704 qla4xxx_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr,
1705 int non_blocking)
1706 {
1707 int ret;
1708 struct iscsi_endpoint *ep;
1709 struct qla_endpoint *qla_ep;
1710 struct scsi_qla_host *ha;
1711 struct sockaddr_in *addr;
1712 struct sockaddr_in6 *addr6;
1713
1714 if (!shost) {
1715 ret = -ENXIO;
1716 pr_err("%s: shost is NULL\n", __func__);
1717 return ERR_PTR(ret);
1718 }
1719
1720 ha = iscsi_host_priv(shost);
1721 ep = iscsi_create_endpoint(sizeof(struct qla_endpoint));
1722 if (!ep) {
1723 ret = -ENOMEM;
1724 return ERR_PTR(ret);
1725 }
1726
1727 qla_ep = ep->dd_data;
1728 memset(qla_ep, 0, sizeof(struct qla_endpoint));
1729 if (dst_addr->sa_family == AF_INET) {
1730 memcpy(&qla_ep->dst_addr, dst_addr, sizeof(struct sockaddr_in));
1731 addr = (struct sockaddr_in *)&qla_ep->dst_addr;
1732 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI4\n", __func__,
1733 (char *)&addr->sin_addr));
1734 } else if (dst_addr->sa_family == AF_INET6) {
1735 memcpy(&qla_ep->dst_addr, dst_addr,
1736 sizeof(struct sockaddr_in6));
1737 addr6 = (struct sockaddr_in6 *)&qla_ep->dst_addr;
1738 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI6\n", __func__,
1739 (char *)&addr6->sin6_addr));
1740 } else {
1741 ql4_printk(KERN_WARNING, ha, "%s: Invalid endpoint\n",
1742 __func__);
1743 }
1744
1745 qla_ep->host = shost;
1746
1747 return ep;
1748 }
1749
1750 static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms)
1751 {
1752 struct qla_endpoint *qla_ep;
1753 struct scsi_qla_host *ha;
1754 int ret = 0;
1755
1756 qla_ep = ep->dd_data;
1757 ha = to_qla_host(qla_ep->host);
1758 DEBUG2(pr_info_ratelimited("%s: host: %ld\n", __func__, ha->host_no));
1759
1760 if (adapter_up(ha) && !test_bit(AF_BUILD_DDB_LIST, &ha->flags))
1761 ret = 1;
1762
1763 return ret;
1764 }
1765
1766 static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep)
1767 {
1768 struct qla_endpoint *qla_ep;
1769 struct scsi_qla_host *ha;
1770
1771 qla_ep = ep->dd_data;
1772 ha = to_qla_host(qla_ep->host);
1773 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__,
1774 ha->host_no));
1775 iscsi_destroy_endpoint(ep);
1776 }
1777
1778 static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep,
1779 enum iscsi_param param,
1780 char *buf)
1781 {
1782 struct qla_endpoint *qla_ep = ep->dd_data;
1783 struct sockaddr *dst_addr;
1784 struct scsi_qla_host *ha;
1785
1786 if (!qla_ep)
1787 return -ENOTCONN;
1788
1789 ha = to_qla_host(qla_ep->host);
1790 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__,
1791 ha->host_no));
1792
1793 switch (param) {
1794 case ISCSI_PARAM_CONN_PORT:
1795 case ISCSI_PARAM_CONN_ADDRESS:
1796 dst_addr = (struct sockaddr *)&qla_ep->dst_addr;
1797 if (!dst_addr)
1798 return -ENOTCONN;
1799
1800 return iscsi_conn_get_addr_param((struct sockaddr_storage *)
1801 &qla_ep->dst_addr, param, buf);
1802 default:
1803 return -ENOSYS;
1804 }
1805 }
1806
1807 static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn,
1808 struct iscsi_stats *stats)
1809 {
1810 struct iscsi_session *sess;
1811 struct iscsi_cls_session *cls_sess;
1812 struct ddb_entry *ddb_entry;
1813 struct scsi_qla_host *ha;
1814 struct ql_iscsi_stats *ql_iscsi_stats;
1815 int stats_size;
1816 int ret;
1817 dma_addr_t iscsi_stats_dma;
1818
1819 cls_sess = iscsi_conn_to_session(cls_conn);
1820 sess = cls_sess->dd_data;
1821 ddb_entry = sess->dd_data;
1822 ha = ddb_entry->ha;
1823
1824 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__,
1825 ha->host_no));
1826 stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats));
1827 /* Allocate memory */
1828 ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size,
1829 &iscsi_stats_dma, GFP_KERNEL);
1830 if (!ql_iscsi_stats) {
1831 ql4_printk(KERN_ERR, ha,
1832 "Unable to allocate memory for iscsi stats\n");
1833 goto exit_get_stats;
1834 }
1835
1836 ret = qla4xxx_get_mgmt_data(ha, ddb_entry->fw_ddb_index, stats_size,
1837 iscsi_stats_dma);
1838 if (ret != QLA_SUCCESS) {
1839 ql4_printk(KERN_ERR, ha,
1840 "Unable to retrieve iscsi stats\n");
1841 goto free_stats;
1842 }
1843
1844 /* octets */
1845 stats->txdata_octets = le64_to_cpu(ql_iscsi_stats->tx_data_octets);
1846 stats->rxdata_octets = le64_to_cpu(ql_iscsi_stats->rx_data_octets);
1847 /* xmit pdus */
1848 stats->noptx_pdus = le32_to_cpu(ql_iscsi_stats->tx_nopout_pdus);
1849 stats->scsicmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_cmd_pdus);
1850 stats->tmfcmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_tmf_cmd_pdus);
1851 stats->login_pdus = le32_to_cpu(ql_iscsi_stats->tx_login_cmd_pdus);
1852 stats->text_pdus = le32_to_cpu(ql_iscsi_stats->tx_text_cmd_pdus);
1853 stats->dataout_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_write_pdus);
1854 stats->logout_pdus = le32_to_cpu(ql_iscsi_stats->tx_logout_cmd_pdus);
1855 stats->snack_pdus = le32_to_cpu(ql_iscsi_stats->tx_snack_req_pdus);
1856 /* recv pdus */
1857 stats->noprx_pdus = le32_to_cpu(ql_iscsi_stats->rx_nopin_pdus);
1858 stats->scsirsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_resp_pdus);
1859 stats->tmfrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_tmf_resp_pdus);
1860 stats->textrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_text_resp_pdus);
1861 stats->datain_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_read_pdus);
1862 stats->logoutrsp_pdus =
1863 le32_to_cpu(ql_iscsi_stats->rx_logout_resp_pdus);
1864 stats->r2t_pdus = le32_to_cpu(ql_iscsi_stats->rx_r2t_pdus);
1865 stats->async_pdus = le32_to_cpu(ql_iscsi_stats->rx_async_pdus);
1866 stats->rjt_pdus = le32_to_cpu(ql_iscsi_stats->rx_reject_pdus);
1867
1868 free_stats:
1869 dma_free_coherent(&ha->pdev->dev, stats_size, ql_iscsi_stats,
1870 iscsi_stats_dma);
1871 exit_get_stats:
1872 return;
1873 }
1874
1875 static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc)
1876 {
1877 struct iscsi_cls_session *session;
1878 unsigned long flags;
1879 enum blk_eh_timer_return ret = BLK_EH_DONE;
1880
1881 session = starget_to_session(scsi_target(sc->device));
1882
1883 spin_lock_irqsave(&session->lock, flags);
1884 if (session->state == ISCSI_SESSION_FAILED)
1885 ret = BLK_EH_RESET_TIMER;
1886 spin_unlock_irqrestore(&session->lock, flags);
1887
1888 return ret;
1889 }
1890
1891 static void qla4xxx_set_port_speed(struct Scsi_Host *shost)
1892 {
1893 struct scsi_qla_host *ha = to_qla_host(shost);
1894 struct iscsi_cls_host *ihost = shost->shost_data;
1895 uint32_t speed = ISCSI_PORT_SPEED_UNKNOWN;
1896
1897 qla4xxx_get_firmware_state(ha);
1898
1899 switch (ha->addl_fw_state & 0x0F00) {
1900 case FW_ADDSTATE_LINK_SPEED_10MBPS:
1901 speed = ISCSI_PORT_SPEED_10MBPS;
1902 break;
1903 case FW_ADDSTATE_LINK_SPEED_100MBPS:
1904 speed = ISCSI_PORT_SPEED_100MBPS;
1905 break;
1906 case FW_ADDSTATE_LINK_SPEED_1GBPS:
1907 speed = ISCSI_PORT_SPEED_1GBPS;
1908 break;
1909 case FW_ADDSTATE_LINK_SPEED_10GBPS:
1910 speed = ISCSI_PORT_SPEED_10GBPS;
1911 break;
1912 }
1913 ihost->port_speed = speed;
1914 }
1915
1916 static void qla4xxx_set_port_state(struct Scsi_Host *shost)
1917 {
1918 struct scsi_qla_host *ha = to_qla_host(shost);
1919 struct iscsi_cls_host *ihost = shost->shost_data;
1920 uint32_t state = ISCSI_PORT_STATE_DOWN;
1921
1922 if (test_bit(AF_LINK_UP, &ha->flags))
1923 state = ISCSI_PORT_STATE_UP;
1924
1925 ihost->port_state = state;
1926 }
1927
1928 static int qla4xxx_host_get_param(struct Scsi_Host *shost,
1929 enum iscsi_host_param param, char *buf)
1930 {
1931 struct scsi_qla_host *ha = to_qla_host(shost);
1932 int len;
1933
1934 switch (param) {
1935 case ISCSI_HOST_PARAM_HWADDRESS:
1936 len = sysfs_format_mac(buf, ha->my_mac, MAC_ADDR_LEN);
1937 break;
1938 case ISCSI_HOST_PARAM_IPADDRESS:
1939 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address);
1940 break;
1941 case ISCSI_HOST_PARAM_INITIATOR_NAME:
1942 len = sprintf(buf, "%s\n", ha->name_string);
1943 break;
1944 case ISCSI_HOST_PARAM_PORT_STATE:
1945 qla4xxx_set_port_state(shost);
1946 len = sprintf(buf, "%s\n", iscsi_get_port_state_name(shost));
1947 break;
1948 case ISCSI_HOST_PARAM_PORT_SPEED:
1949 qla4xxx_set_port_speed(shost);
1950 len = sprintf(buf, "%s\n", iscsi_get_port_speed_name(shost));
1951 break;
1952 default:
1953 return -ENOSYS;
1954 }
1955
1956 return len;
1957 }
1958
1959 static void qla4xxx_create_ipv4_iface(struct scsi_qla_host *ha)
1960 {
1961 if (ha->iface_ipv4)
1962 return;
1963
1964 /* IPv4 */
1965 ha->iface_ipv4 = iscsi_create_iface(ha->host,
1966 &qla4xxx_iscsi_transport,
1967 ISCSI_IFACE_TYPE_IPV4, 0, 0);
1968 if (!ha->iface_ipv4)
1969 ql4_printk(KERN_ERR, ha, "Could not create IPv4 iSCSI "
1970 "iface0.\n");
1971 }
1972
1973 static void qla4xxx_create_ipv6_iface(struct scsi_qla_host *ha)
1974 {
1975 if (!ha->iface_ipv6_0)
1976 /* IPv6 iface-0 */
1977 ha->iface_ipv6_0 = iscsi_create_iface(ha->host,
1978 &qla4xxx_iscsi_transport,
1979 ISCSI_IFACE_TYPE_IPV6, 0,
1980 0);
1981 if (!ha->iface_ipv6_0)
1982 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI "
1983 "iface0.\n");
1984
1985 if (!ha->iface_ipv6_1)
1986 /* IPv6 iface-1 */
1987 ha->iface_ipv6_1 = iscsi_create_iface(ha->host,
1988 &qla4xxx_iscsi_transport,
1989 ISCSI_IFACE_TYPE_IPV6, 1,
1990 0);
1991 if (!ha->iface_ipv6_1)
1992 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI "
1993 "iface1.\n");
1994 }
1995
1996 static void qla4xxx_create_ifaces(struct scsi_qla_host *ha)
1997 {
1998 if (ha->ip_config.ipv4_options & IPOPT_IPV4_PROTOCOL_ENABLE)
1999 qla4xxx_create_ipv4_iface(ha);
2000
2001 if (ha->ip_config.ipv6_options & IPV6_OPT_IPV6_PROTOCOL_ENABLE)
2002 qla4xxx_create_ipv6_iface(ha);
2003 }
2004
2005 static void qla4xxx_destroy_ipv4_iface(struct scsi_qla_host *ha)
2006 {
2007 if (ha->iface_ipv4) {
2008 iscsi_destroy_iface(ha->iface_ipv4);
2009 ha->iface_ipv4 = NULL;
2010 }
2011 }
2012
2013 static void qla4xxx_destroy_ipv6_iface(struct scsi_qla_host *ha)
2014 {
2015 if (ha->iface_ipv6_0) {
2016 iscsi_destroy_iface(ha->iface_ipv6_0);
2017 ha->iface_ipv6_0 = NULL;
2018 }
2019 if (ha->iface_ipv6_1) {
2020 iscsi_destroy_iface(ha->iface_ipv6_1);
2021 ha->iface_ipv6_1 = NULL;
2022 }
2023 }
2024
2025 static void qla4xxx_destroy_ifaces(struct scsi_qla_host *ha)
2026 {
2027 qla4xxx_destroy_ipv4_iface(ha);
2028 qla4xxx_destroy_ipv6_iface(ha);
2029 }
2030
2031 static void qla4xxx_set_ipv6(struct scsi_qla_host *ha,
2032 struct iscsi_iface_param_info *iface_param,
2033 struct addr_ctrl_blk *init_fw_cb)
2034 {
2035 /*
2036 * iface_num 0 is valid for IPv6 Addr, linklocal, router, autocfg.
2037 * iface_num 1 is valid only for IPv6 Addr.
2038 */
2039 switch (iface_param->param) {
2040 case ISCSI_NET_PARAM_IPV6_ADDR:
2041 if (iface_param->iface_num & 0x1)
2042 /* IPv6 Addr 1 */
2043 memcpy(init_fw_cb->ipv6_addr1, iface_param->value,
2044 sizeof(init_fw_cb->ipv6_addr1));
2045 else
2046 /* IPv6 Addr 0 */
2047 memcpy(init_fw_cb->ipv6_addr0, iface_param->value,
2048 sizeof(init_fw_cb->ipv6_addr0));
2049 break;
2050 case ISCSI_NET_PARAM_IPV6_LINKLOCAL:
2051 if (iface_param->iface_num & 0x1)
2052 break;
2053 memcpy(init_fw_cb->ipv6_if_id, &iface_param->value[8],
2054 sizeof(init_fw_cb->ipv6_if_id));
2055 break;
2056 case ISCSI_NET_PARAM_IPV6_ROUTER:
2057 if (iface_param->iface_num & 0x1)
2058 break;
2059 memcpy(init_fw_cb->ipv6_dflt_rtr_addr, iface_param->value,
2060 sizeof(init_fw_cb->ipv6_dflt_rtr_addr));
2061 break;
2062 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG:
2063 /* Autocfg applies to even interface */
2064 if (iface_param->iface_num & 0x1)
2065 break;
2066
2067 if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_DISABLE)
2068 init_fw_cb->ipv6_addtl_opts &=
2069 cpu_to_le16(
2070 ~IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE);
2071 else if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_ND_ENABLE)
2072 init_fw_cb->ipv6_addtl_opts |=
2073 cpu_to_le16(
2074 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE);
2075 else
2076 ql4_printk(KERN_ERR, ha,
2077 "Invalid autocfg setting for IPv6 addr\n");
2078 break;
2079 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG:
2080 /* Autocfg applies to even interface */
2081 if (iface_param->iface_num & 0x1)
2082 break;
2083
2084 if (iface_param->value[0] ==
2085 ISCSI_IPV6_LINKLOCAL_AUTOCFG_ENABLE)
2086 init_fw_cb->ipv6_addtl_opts |= cpu_to_le16(
2087 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR);
2088 else if (iface_param->value[0] ==
2089 ISCSI_IPV6_LINKLOCAL_AUTOCFG_DISABLE)
2090 init_fw_cb->ipv6_addtl_opts &= cpu_to_le16(
2091 ~IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR);
2092 else
2093 ql4_printk(KERN_ERR, ha,
2094 "Invalid autocfg setting for IPv6 linklocal addr\n");
2095 break;
2096 case ISCSI_NET_PARAM_IPV6_ROUTER_AUTOCFG:
2097 /* Autocfg applies to even interface */
2098 if (iface_param->iface_num & 0x1)
2099 break;
2100
2101 if (iface_param->value[0] == ISCSI_IPV6_ROUTER_AUTOCFG_ENABLE)
2102 memset(init_fw_cb->ipv6_dflt_rtr_addr, 0,
2103 sizeof(init_fw_cb->ipv6_dflt_rtr_addr));
2104 break;
2105 case ISCSI_NET_PARAM_IFACE_ENABLE:
2106 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) {
2107 init_fw_cb->ipv6_opts |=
2108 cpu_to_le16(IPV6_OPT_IPV6_PROTOCOL_ENABLE);
2109 qla4xxx_create_ipv6_iface(ha);
2110 } else {
2111 init_fw_cb->ipv6_opts &=
2112 cpu_to_le16(~IPV6_OPT_IPV6_PROTOCOL_ENABLE &
2113 0xFFFF);
2114 qla4xxx_destroy_ipv6_iface(ha);
2115 }
2116 break;
2117 case ISCSI_NET_PARAM_VLAN_TAG:
2118 if (iface_param->len != sizeof(init_fw_cb->ipv6_vlan_tag))
2119 break;
2120 init_fw_cb->ipv6_vlan_tag =
2121 cpu_to_be16(*(uint16_t *)iface_param->value);
2122 break;
2123 case ISCSI_NET_PARAM_VLAN_ENABLED:
2124 if (iface_param->value[0] == ISCSI_VLAN_ENABLE)
2125 init_fw_cb->ipv6_opts |=
2126 cpu_to_le16(IPV6_OPT_VLAN_TAGGING_ENABLE);
2127 else
2128 init_fw_cb->ipv6_opts &=
2129 cpu_to_le16(~IPV6_OPT_VLAN_TAGGING_ENABLE);
2130 break;
2131 case ISCSI_NET_PARAM_MTU:
2132 init_fw_cb->eth_mtu_size =
2133 cpu_to_le16(*(uint16_t *)iface_param->value);
2134 break;
2135 case ISCSI_NET_PARAM_PORT:
2136 /* Autocfg applies to even interface */
2137 if (iface_param->iface_num & 0x1)
2138 break;
2139
2140 init_fw_cb->ipv6_port =
2141 cpu_to_le16(*(uint16_t *)iface_param->value);
2142 break;
2143 case ISCSI_NET_PARAM_DELAYED_ACK_EN:
2144 if (iface_param->iface_num & 0x1)
2145 break;
2146 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2147 init_fw_cb->ipv6_tcp_opts |=
2148 cpu_to_le16(IPV6_TCPOPT_DELAYED_ACK_DISABLE);
2149 else
2150 init_fw_cb->ipv6_tcp_opts &=
2151 cpu_to_le16(~IPV6_TCPOPT_DELAYED_ACK_DISABLE &
2152 0xFFFF);
2153 break;
2154 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE:
2155 if (iface_param->iface_num & 0x1)
2156 break;
2157 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2158 init_fw_cb->ipv6_tcp_opts |=
2159 cpu_to_le16(IPV6_TCPOPT_NAGLE_ALGO_DISABLE);
2160 else
2161 init_fw_cb->ipv6_tcp_opts &=
2162 cpu_to_le16(~IPV6_TCPOPT_NAGLE_ALGO_DISABLE);
2163 break;
2164 case ISCSI_NET_PARAM_TCP_WSF_DISABLE:
2165 if (iface_param->iface_num & 0x1)
2166 break;
2167 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2168 init_fw_cb->ipv6_tcp_opts |=
2169 cpu_to_le16(IPV6_TCPOPT_WINDOW_SCALE_DISABLE);
2170 else
2171 init_fw_cb->ipv6_tcp_opts &=
2172 cpu_to_le16(~IPV6_TCPOPT_WINDOW_SCALE_DISABLE);
2173 break;
2174 case ISCSI_NET_PARAM_TCP_WSF:
2175 if (iface_param->iface_num & 0x1)
2176 break;
2177 init_fw_cb->ipv6_tcp_wsf = iface_param->value[0];
2178 break;
2179 case ISCSI_NET_PARAM_TCP_TIMER_SCALE:
2180 if (iface_param->iface_num & 0x1)
2181 break;
2182 init_fw_cb->ipv6_tcp_opts &=
2183 cpu_to_le16(~IPV6_TCPOPT_TIMER_SCALE);
2184 init_fw_cb->ipv6_tcp_opts |=
2185 cpu_to_le16((iface_param->value[0] << 1) &
2186 IPV6_TCPOPT_TIMER_SCALE);
2187 break;
2188 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN:
2189 if (iface_param->iface_num & 0x1)
2190 break;
2191 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2192 init_fw_cb->ipv6_tcp_opts |=
2193 cpu_to_le16(IPV6_TCPOPT_TIMESTAMP_EN);
2194 else
2195 init_fw_cb->ipv6_tcp_opts &=
2196 cpu_to_le16(~IPV6_TCPOPT_TIMESTAMP_EN);
2197 break;
2198 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN:
2199 if (iface_param->iface_num & 0x1)
2200 break;
2201 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2202 init_fw_cb->ipv6_opts |=
2203 cpu_to_le16(IPV6_OPT_GRAT_NEIGHBOR_ADV_EN);
2204 else
2205 init_fw_cb->ipv6_opts &=
2206 cpu_to_le16(~IPV6_OPT_GRAT_NEIGHBOR_ADV_EN);
2207 break;
2208 case ISCSI_NET_PARAM_REDIRECT_EN:
2209 if (iface_param->iface_num & 0x1)
2210 break;
2211 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2212 init_fw_cb->ipv6_opts |=
2213 cpu_to_le16(IPV6_OPT_REDIRECT_EN);
2214 else
2215 init_fw_cb->ipv6_opts &=
2216 cpu_to_le16(~IPV6_OPT_REDIRECT_EN);
2217 break;
2218 case ISCSI_NET_PARAM_IPV6_MLD_EN:
2219 if (iface_param->iface_num & 0x1)
2220 break;
2221 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2222 init_fw_cb->ipv6_addtl_opts |=
2223 cpu_to_le16(IPV6_ADDOPT_MLD_EN);
2224 else
2225 init_fw_cb->ipv6_addtl_opts &=
2226 cpu_to_le16(~IPV6_ADDOPT_MLD_EN);
2227 break;
2228 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL:
2229 if (iface_param->iface_num & 0x1)
2230 break;
2231 init_fw_cb->ipv6_flow_lbl =
2232 cpu_to_le16(*(uint16_t *)iface_param->value);
2233 break;
2234 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS:
2235 if (iface_param->iface_num & 0x1)
2236 break;
2237 init_fw_cb->ipv6_traffic_class = iface_param->value[0];
2238 break;
2239 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT:
2240 if (iface_param->iface_num & 0x1)
2241 break;
2242 init_fw_cb->ipv6_hop_limit = iface_param->value[0];
2243 break;
2244 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO:
2245 if (iface_param->iface_num & 0x1)
2246 break;
2247 init_fw_cb->ipv6_nd_reach_time =
2248 cpu_to_le32(*(uint32_t *)iface_param->value);
2249 break;
2250 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME:
2251 if (iface_param->iface_num & 0x1)
2252 break;
2253 init_fw_cb->ipv6_nd_rexmit_timer =
2254 cpu_to_le32(*(uint32_t *)iface_param->value);
2255 break;
2256 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO:
2257 if (iface_param->iface_num & 0x1)
2258 break;
2259 init_fw_cb->ipv6_nd_stale_timeout =
2260 cpu_to_le32(*(uint32_t *)iface_param->value);
2261 break;
2262 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT:
2263 if (iface_param->iface_num & 0x1)
2264 break;
2265 init_fw_cb->ipv6_dup_addr_detect_count = iface_param->value[0];
2266 break;
2267 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU:
2268 if (iface_param->iface_num & 0x1)
2269 break;
2270 init_fw_cb->ipv6_gw_advrt_mtu =
2271 cpu_to_le32(*(uint32_t *)iface_param->value);
2272 break;
2273 default:
2274 ql4_printk(KERN_ERR, ha, "Unknown IPv6 param = %d\n",
2275 iface_param->param);
2276 break;
2277 }
2278 }
2279
2280 static void qla4xxx_set_ipv4(struct scsi_qla_host *ha,
2281 struct iscsi_iface_param_info *iface_param,
2282 struct addr_ctrl_blk *init_fw_cb)
2283 {
2284 switch (iface_param->param) {
2285 case ISCSI_NET_PARAM_IPV4_ADDR:
2286 memcpy(init_fw_cb->ipv4_addr, iface_param->value,
2287 sizeof(init_fw_cb->ipv4_addr));
2288 break;
2289 case ISCSI_NET_PARAM_IPV4_SUBNET:
2290 memcpy(init_fw_cb->ipv4_subnet, iface_param->value,
2291 sizeof(init_fw_cb->ipv4_subnet));
2292 break;
2293 case ISCSI_NET_PARAM_IPV4_GW:
2294 memcpy(init_fw_cb->ipv4_gw_addr, iface_param->value,
2295 sizeof(init_fw_cb->ipv4_gw_addr));
2296 break;
2297 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
2298 if (iface_param->value[0] == ISCSI_BOOTPROTO_DHCP)
2299 init_fw_cb->ipv4_tcp_opts |=
2300 cpu_to_le16(TCPOPT_DHCP_ENABLE);
2301 else if (iface_param->value[0] == ISCSI_BOOTPROTO_STATIC)
2302 init_fw_cb->ipv4_tcp_opts &=
2303 cpu_to_le16(~TCPOPT_DHCP_ENABLE);
2304 else
2305 ql4_printk(KERN_ERR, ha, "Invalid IPv4 bootproto\n");
2306 break;
2307 case ISCSI_NET_PARAM_IFACE_ENABLE:
2308 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) {
2309 init_fw_cb->ipv4_ip_opts |=
2310 cpu_to_le16(IPOPT_IPV4_PROTOCOL_ENABLE);
2311 qla4xxx_create_ipv4_iface(ha);
2312 } else {
2313 init_fw_cb->ipv4_ip_opts &=
2314 cpu_to_le16(~IPOPT_IPV4_PROTOCOL_ENABLE &
2315 0xFFFF);
2316 qla4xxx_destroy_ipv4_iface(ha);
2317 }
2318 break;
2319 case ISCSI_NET_PARAM_VLAN_TAG:
2320 if (iface_param->len != sizeof(init_fw_cb->ipv4_vlan_tag))
2321 break;
2322 init_fw_cb->ipv4_vlan_tag =
2323 cpu_to_be16(*(uint16_t *)iface_param->value);
2324 break;
2325 case ISCSI_NET_PARAM_VLAN_ENABLED:
2326 if (iface_param->value[0] == ISCSI_VLAN_ENABLE)
2327 init_fw_cb->ipv4_ip_opts |=
2328 cpu_to_le16(IPOPT_VLAN_TAGGING_ENABLE);
2329 else
2330 init_fw_cb->ipv4_ip_opts &=
2331 cpu_to_le16(~IPOPT_VLAN_TAGGING_ENABLE);
2332 break;
2333 case ISCSI_NET_PARAM_MTU:
2334 init_fw_cb->eth_mtu_size =
2335 cpu_to_le16(*(uint16_t *)iface_param->value);
2336 break;
2337 case ISCSI_NET_PARAM_PORT:
2338 init_fw_cb->ipv4_port =
2339 cpu_to_le16(*(uint16_t *)iface_param->value);
2340 break;
2341 case ISCSI_NET_PARAM_DELAYED_ACK_EN:
2342 if (iface_param->iface_num & 0x1)
2343 break;
2344 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2345 init_fw_cb->ipv4_tcp_opts |=
2346 cpu_to_le16(TCPOPT_DELAYED_ACK_DISABLE);
2347 else
2348 init_fw_cb->ipv4_tcp_opts &=
2349 cpu_to_le16(~TCPOPT_DELAYED_ACK_DISABLE &
2350 0xFFFF);
2351 break;
2352 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE:
2353 if (iface_param->iface_num & 0x1)
2354 break;
2355 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2356 init_fw_cb->ipv4_tcp_opts |=
2357 cpu_to_le16(TCPOPT_NAGLE_ALGO_DISABLE);
2358 else
2359 init_fw_cb->ipv4_tcp_opts &=
2360 cpu_to_le16(~TCPOPT_NAGLE_ALGO_DISABLE);
2361 break;
2362 case ISCSI_NET_PARAM_TCP_WSF_DISABLE:
2363 if (iface_param->iface_num & 0x1)
2364 break;
2365 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2366 init_fw_cb->ipv4_tcp_opts |=
2367 cpu_to_le16(TCPOPT_WINDOW_SCALE_DISABLE);
2368 else
2369 init_fw_cb->ipv4_tcp_opts &=
2370 cpu_to_le16(~TCPOPT_WINDOW_SCALE_DISABLE);
2371 break;
2372 case ISCSI_NET_PARAM_TCP_WSF:
2373 if (iface_param->iface_num & 0x1)
2374 break;
2375 init_fw_cb->ipv4_tcp_wsf = iface_param->value[0];
2376 break;
2377 case ISCSI_NET_PARAM_TCP_TIMER_SCALE:
2378 if (iface_param->iface_num & 0x1)
2379 break;
2380 init_fw_cb->ipv4_tcp_opts &= cpu_to_le16(~TCPOPT_TIMER_SCALE);
2381 init_fw_cb->ipv4_tcp_opts |=
2382 cpu_to_le16((iface_param->value[0] << 1) &
2383 TCPOPT_TIMER_SCALE);
2384 break;
2385 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN:
2386 if (iface_param->iface_num & 0x1)
2387 break;
2388 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2389 init_fw_cb->ipv4_tcp_opts |=
2390 cpu_to_le16(TCPOPT_TIMESTAMP_ENABLE);
2391 else
2392 init_fw_cb->ipv4_tcp_opts &=
2393 cpu_to_le16(~TCPOPT_TIMESTAMP_ENABLE);
2394 break;
2395 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN:
2396 if (iface_param->iface_num & 0x1)
2397 break;
2398 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2399 init_fw_cb->ipv4_tcp_opts |=
2400 cpu_to_le16(TCPOPT_DNS_SERVER_IP_EN);
2401 else
2402 init_fw_cb->ipv4_tcp_opts &=
2403 cpu_to_le16(~TCPOPT_DNS_SERVER_IP_EN);
2404 break;
2405 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN:
2406 if (iface_param->iface_num & 0x1)
2407 break;
2408 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2409 init_fw_cb->ipv4_tcp_opts |=
2410 cpu_to_le16(TCPOPT_SLP_DA_INFO_EN);
2411 else
2412 init_fw_cb->ipv4_tcp_opts &=
2413 cpu_to_le16(~TCPOPT_SLP_DA_INFO_EN);
2414 break;
2415 case ISCSI_NET_PARAM_IPV4_TOS_EN:
2416 if (iface_param->iface_num & 0x1)
2417 break;
2418 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2419 init_fw_cb->ipv4_ip_opts |=
2420 cpu_to_le16(IPOPT_IPV4_TOS_EN);
2421 else
2422 init_fw_cb->ipv4_ip_opts &=
2423 cpu_to_le16(~IPOPT_IPV4_TOS_EN);
2424 break;
2425 case ISCSI_NET_PARAM_IPV4_TOS:
2426 if (iface_param->iface_num & 0x1)
2427 break;
2428 init_fw_cb->ipv4_tos = iface_param->value[0];
2429 break;
2430 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN:
2431 if (iface_param->iface_num & 0x1)
2432 break;
2433 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2434 init_fw_cb->ipv4_ip_opts |=
2435 cpu_to_le16(IPOPT_GRAT_ARP_EN);
2436 else
2437 init_fw_cb->ipv4_ip_opts &=
2438 cpu_to_le16(~IPOPT_GRAT_ARP_EN);
2439 break;
2440 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN:
2441 if (iface_param->iface_num & 0x1)
2442 break;
2443 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2444 init_fw_cb->ipv4_ip_opts |=
2445 cpu_to_le16(IPOPT_ALT_CID_EN);
2446 else
2447 init_fw_cb->ipv4_ip_opts &=
2448 cpu_to_le16(~IPOPT_ALT_CID_EN);
2449 break;
2450 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID:
2451 if (iface_param->iface_num & 0x1)
2452 break;
2453 memcpy(init_fw_cb->ipv4_dhcp_alt_cid, iface_param->value,
2454 (sizeof(init_fw_cb->ipv4_dhcp_alt_cid) - 1));
2455 init_fw_cb->ipv4_dhcp_alt_cid_len =
2456 strlen(init_fw_cb->ipv4_dhcp_alt_cid);
2457 break;
2458 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN:
2459 if (iface_param->iface_num & 0x1)
2460 break;
2461 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2462 init_fw_cb->ipv4_ip_opts |=
2463 cpu_to_le16(IPOPT_REQ_VID_EN);
2464 else
2465 init_fw_cb->ipv4_ip_opts &=
2466 cpu_to_le16(~IPOPT_REQ_VID_EN);
2467 break;
2468 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN:
2469 if (iface_param->iface_num & 0x1)
2470 break;
2471 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2472 init_fw_cb->ipv4_ip_opts |=
2473 cpu_to_le16(IPOPT_USE_VID_EN);
2474 else
2475 init_fw_cb->ipv4_ip_opts &=
2476 cpu_to_le16(~IPOPT_USE_VID_EN);
2477 break;
2478 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID:
2479 if (iface_param->iface_num & 0x1)
2480 break;
2481 memcpy(init_fw_cb->ipv4_dhcp_vid, iface_param->value,
2482 (sizeof(init_fw_cb->ipv4_dhcp_vid) - 1));
2483 init_fw_cb->ipv4_dhcp_vid_len =
2484 strlen(init_fw_cb->ipv4_dhcp_vid);
2485 break;
2486 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN:
2487 if (iface_param->iface_num & 0x1)
2488 break;
2489 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2490 init_fw_cb->ipv4_ip_opts |=
2491 cpu_to_le16(IPOPT_LEARN_IQN_EN);
2492 else
2493 init_fw_cb->ipv4_ip_opts &=
2494 cpu_to_le16(~IPOPT_LEARN_IQN_EN);
2495 break;
2496 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE:
2497 if (iface_param->iface_num & 0x1)
2498 break;
2499 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2500 init_fw_cb->ipv4_ip_opts |=
2501 cpu_to_le16(IPOPT_FRAGMENTATION_DISABLE);
2502 else
2503 init_fw_cb->ipv4_ip_opts &=
2504 cpu_to_le16(~IPOPT_FRAGMENTATION_DISABLE);
2505 break;
2506 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN:
2507 if (iface_param->iface_num & 0x1)
2508 break;
2509 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2510 init_fw_cb->ipv4_ip_opts |=
2511 cpu_to_le16(IPOPT_IN_FORWARD_EN);
2512 else
2513 init_fw_cb->ipv4_ip_opts &=
2514 cpu_to_le16(~IPOPT_IN_FORWARD_EN);
2515 break;
2516 case ISCSI_NET_PARAM_REDIRECT_EN:
2517 if (iface_param->iface_num & 0x1)
2518 break;
2519 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2520 init_fw_cb->ipv4_ip_opts |=
2521 cpu_to_le16(IPOPT_ARP_REDIRECT_EN);
2522 else
2523 init_fw_cb->ipv4_ip_opts &=
2524 cpu_to_le16(~IPOPT_ARP_REDIRECT_EN);
2525 break;
2526 case ISCSI_NET_PARAM_IPV4_TTL:
2527 if (iface_param->iface_num & 0x1)
2528 break;
2529 init_fw_cb->ipv4_ttl = iface_param->value[0];
2530 break;
2531 default:
2532 ql4_printk(KERN_ERR, ha, "Unknown IPv4 param = %d\n",
2533 iface_param->param);
2534 break;
2535 }
2536 }
2537
2538 static void qla4xxx_set_iscsi_param(struct scsi_qla_host *ha,
2539 struct iscsi_iface_param_info *iface_param,
2540 struct addr_ctrl_blk *init_fw_cb)
2541 {
2542 switch (iface_param->param) {
2543 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO:
2544 if (iface_param->iface_num & 0x1)
2545 break;
2546 init_fw_cb->def_timeout =
2547 cpu_to_le16(*(uint16_t *)iface_param->value);
2548 break;
2549 case ISCSI_IFACE_PARAM_HDRDGST_EN:
2550 if (iface_param->iface_num & 0x1)
2551 break;
2552 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2553 init_fw_cb->iscsi_opts |=
2554 cpu_to_le16(ISCSIOPTS_HEADER_DIGEST_EN);
2555 else
2556 init_fw_cb->iscsi_opts &=
2557 cpu_to_le16(~ISCSIOPTS_HEADER_DIGEST_EN);
2558 break;
2559 case ISCSI_IFACE_PARAM_DATADGST_EN:
2560 if (iface_param->iface_num & 0x1)
2561 break;
2562 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2563 init_fw_cb->iscsi_opts |=
2564 cpu_to_le16(ISCSIOPTS_DATA_DIGEST_EN);
2565 else
2566 init_fw_cb->iscsi_opts &=
2567 cpu_to_le16(~ISCSIOPTS_DATA_DIGEST_EN);
2568 break;
2569 case ISCSI_IFACE_PARAM_IMM_DATA_EN:
2570 if (iface_param->iface_num & 0x1)
2571 break;
2572 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2573 init_fw_cb->iscsi_opts |=
2574 cpu_to_le16(ISCSIOPTS_IMMEDIATE_DATA_EN);
2575 else
2576 init_fw_cb->iscsi_opts &=
2577 cpu_to_le16(~ISCSIOPTS_IMMEDIATE_DATA_EN);
2578 break;
2579 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN:
2580 if (iface_param->iface_num & 0x1)
2581 break;
2582 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2583 init_fw_cb->iscsi_opts |=
2584 cpu_to_le16(ISCSIOPTS_INITIAL_R2T_EN);
2585 else
2586 init_fw_cb->iscsi_opts &=
2587 cpu_to_le16(~ISCSIOPTS_INITIAL_R2T_EN);
2588 break;
2589 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN:
2590 if (iface_param->iface_num & 0x1)
2591 break;
2592 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2593 init_fw_cb->iscsi_opts |=
2594 cpu_to_le16(ISCSIOPTS_DATA_SEQ_INORDER_EN);
2595 else
2596 init_fw_cb->iscsi_opts &=
2597 cpu_to_le16(~ISCSIOPTS_DATA_SEQ_INORDER_EN);
2598 break;
2599 case ISCSI_IFACE_PARAM_PDU_INORDER_EN:
2600 if (iface_param->iface_num & 0x1)
2601 break;
2602 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2603 init_fw_cb->iscsi_opts |=
2604 cpu_to_le16(ISCSIOPTS_DATA_PDU_INORDER_EN);
2605 else
2606 init_fw_cb->iscsi_opts &=
2607 cpu_to_le16(~ISCSIOPTS_DATA_PDU_INORDER_EN);
2608 break;
2609 case ISCSI_IFACE_PARAM_ERL:
2610 if (iface_param->iface_num & 0x1)
2611 break;
2612 init_fw_cb->iscsi_opts &= cpu_to_le16(~ISCSIOPTS_ERL);
2613 init_fw_cb->iscsi_opts |= cpu_to_le16(iface_param->value[0] &
2614 ISCSIOPTS_ERL);
2615 break;
2616 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH:
2617 if (iface_param->iface_num & 0x1)
2618 break;
2619 init_fw_cb->iscsi_max_pdu_size =
2620 cpu_to_le32(*(uint32_t *)iface_param->value) /
2621 BYTE_UNITS;
2622 break;
2623 case ISCSI_IFACE_PARAM_FIRST_BURST:
2624 if (iface_param->iface_num & 0x1)
2625 break;
2626 init_fw_cb->iscsi_fburst_len =
2627 cpu_to_le32(*(uint32_t *)iface_param->value) /
2628 BYTE_UNITS;
2629 break;
2630 case ISCSI_IFACE_PARAM_MAX_R2T:
2631 if (iface_param->iface_num & 0x1)
2632 break;
2633 init_fw_cb->iscsi_max_outstnd_r2t =
2634 cpu_to_le16(*(uint16_t *)iface_param->value);
2635 break;
2636 case ISCSI_IFACE_PARAM_MAX_BURST:
2637 if (iface_param->iface_num & 0x1)
2638 break;
2639 init_fw_cb->iscsi_max_burst_len =
2640 cpu_to_le32(*(uint32_t *)iface_param->value) /
2641 BYTE_UNITS;
2642 break;
2643 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN:
2644 if (iface_param->iface_num & 0x1)
2645 break;
2646 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2647 init_fw_cb->iscsi_opts |=
2648 cpu_to_le16(ISCSIOPTS_CHAP_AUTH_EN);
2649 else
2650 init_fw_cb->iscsi_opts &=
2651 cpu_to_le16(~ISCSIOPTS_CHAP_AUTH_EN);
2652 break;
2653 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN:
2654 if (iface_param->iface_num & 0x1)
2655 break;
2656 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2657 init_fw_cb->iscsi_opts |=
2658 cpu_to_le16(ISCSIOPTS_BIDI_CHAP_EN);
2659 else
2660 init_fw_cb->iscsi_opts &=
2661 cpu_to_le16(~ISCSIOPTS_BIDI_CHAP_EN);
2662 break;
2663 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL:
2664 if (iface_param->iface_num & 0x1)
2665 break;
2666 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2667 init_fw_cb->iscsi_opts |=
2668 cpu_to_le16(ISCSIOPTS_DISCOVERY_AUTH_EN);
2669 else
2670 init_fw_cb->iscsi_opts &=
2671 cpu_to_le16(~ISCSIOPTS_DISCOVERY_AUTH_EN);
2672 break;
2673 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN:
2674 if (iface_param->iface_num & 0x1)
2675 break;
2676 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2677 init_fw_cb->iscsi_opts |=
2678 cpu_to_le16(ISCSIOPTS_DISCOVERY_LOGOUT_EN);
2679 else
2680 init_fw_cb->iscsi_opts &=
2681 cpu_to_le16(~ISCSIOPTS_DISCOVERY_LOGOUT_EN);
2682 break;
2683 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN:
2684 if (iface_param->iface_num & 0x1)
2685 break;
2686 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2687 init_fw_cb->iscsi_opts |=
2688 cpu_to_le16(ISCSIOPTS_STRICT_LOGIN_COMP_EN);
2689 else
2690 init_fw_cb->iscsi_opts &=
2691 cpu_to_le16(~ISCSIOPTS_STRICT_LOGIN_COMP_EN);
2692 break;
2693 default:
2694 ql4_printk(KERN_ERR, ha, "Unknown iscsi param = %d\n",
2695 iface_param->param);
2696 break;
2697 }
2698 }
2699
2700 static void
2701 qla4xxx_initcb_to_acb(struct addr_ctrl_blk *init_fw_cb)
2702 {
2703 struct addr_ctrl_blk_def *acb;
2704 acb = (struct addr_ctrl_blk_def *)init_fw_cb;
2705 memset(acb->reserved1, 0, sizeof(acb->reserved1));
2706 memset(acb->reserved2, 0, sizeof(acb->reserved2));
2707 memset(acb->reserved3, 0, sizeof(acb->reserved3));
2708 memset(acb->reserved4, 0, sizeof(acb->reserved4));
2709 memset(acb->reserved5, 0, sizeof(acb->reserved5));
2710 memset(acb->reserved6, 0, sizeof(acb->reserved6));
2711 memset(acb->reserved7, 0, sizeof(acb->reserved7));
2712 memset(acb->reserved8, 0, sizeof(acb->reserved8));
2713 memset(acb->reserved9, 0, sizeof(acb->reserved9));
2714 memset(acb->reserved10, 0, sizeof(acb->reserved10));
2715 memset(acb->reserved11, 0, sizeof(acb->reserved11));
2716 memset(acb->reserved12, 0, sizeof(acb->reserved12));
2717 memset(acb->reserved13, 0, sizeof(acb->reserved13));
2718 memset(acb->reserved14, 0, sizeof(acb->reserved14));
2719 memset(acb->reserved15, 0, sizeof(acb->reserved15));
2720 }
2721
2722 static int
2723 qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data, uint32_t len)
2724 {
2725 struct scsi_qla_host *ha = to_qla_host(shost);
2726 int rval = 0;
2727 struct iscsi_iface_param_info *iface_param = NULL;
2728 struct addr_ctrl_blk *init_fw_cb = NULL;
2729 dma_addr_t init_fw_cb_dma;
2730 uint32_t mbox_cmd[MBOX_REG_COUNT];
2731 uint32_t mbox_sts[MBOX_REG_COUNT];
2732 uint32_t rem = len;
2733 struct nlattr *attr;
2734
2735 init_fw_cb = dma_alloc_coherent(&ha->pdev->dev,
2736 sizeof(struct addr_ctrl_blk),
2737 &init_fw_cb_dma, GFP_KERNEL);
2738 if (!init_fw_cb) {
2739 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc init_cb\n",
2740 __func__);
2741 return -ENOMEM;
2742 }
2743
2744 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
2745 memset(&mbox_sts, 0, sizeof(mbox_sts));
2746
2747 if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma)) {
2748 ql4_printk(KERN_ERR, ha, "%s: get ifcb failed\n", __func__);
2749 rval = -EIO;
2750 goto exit_init_fw_cb;
2751 }
2752
2753 nla_for_each_attr(attr, data, len, rem) {
2754 iface_param = nla_data(attr);
2755
2756 if (iface_param->param_type == ISCSI_NET_PARAM) {
2757 switch (iface_param->iface_type) {
2758 case ISCSI_IFACE_TYPE_IPV4:
2759 switch (iface_param->iface_num) {
2760 case 0:
2761 qla4xxx_set_ipv4(ha, iface_param,
2762 init_fw_cb);
2763 break;
2764 default:
2765 /* Cannot have more than one IPv4 interface */
2766 ql4_printk(KERN_ERR, ha,
2767 "Invalid IPv4 iface number = %d\n",
2768 iface_param->iface_num);
2769 break;
2770 }
2771 break;
2772 case ISCSI_IFACE_TYPE_IPV6:
2773 switch (iface_param->iface_num) {
2774 case 0:
2775 case 1:
2776 qla4xxx_set_ipv6(ha, iface_param,
2777 init_fw_cb);
2778 break;
2779 default:
2780 /* Cannot have more than two IPv6 interface */
2781 ql4_printk(KERN_ERR, ha,
2782 "Invalid IPv6 iface number = %d\n",
2783 iface_param->iface_num);
2784 break;
2785 }
2786 break;
2787 default:
2788 ql4_printk(KERN_ERR, ha,
2789 "Invalid iface type\n");
2790 break;
2791 }
2792 } else if (iface_param->param_type == ISCSI_IFACE_PARAM) {
2793 qla4xxx_set_iscsi_param(ha, iface_param,
2794 init_fw_cb);
2795 } else {
2796 continue;
2797 }
2798 }
2799
2800 init_fw_cb->cookie = cpu_to_le32(0x11BEAD5A);
2801
2802 rval = qla4xxx_set_flash(ha, init_fw_cb_dma, FLASH_SEGMENT_IFCB,
2803 sizeof(struct addr_ctrl_blk),
2804 FLASH_OPT_RMW_COMMIT);
2805 if (rval != QLA_SUCCESS) {
2806 ql4_printk(KERN_ERR, ha, "%s: set flash mbx failed\n",
2807 __func__);
2808 rval = -EIO;
2809 goto exit_init_fw_cb;
2810 }
2811
2812 rval = qla4xxx_disable_acb(ha);
2813 if (rval != QLA_SUCCESS) {
2814 ql4_printk(KERN_ERR, ha, "%s: disable acb mbx failed\n",
2815 __func__);
2816 rval = -EIO;
2817 goto exit_init_fw_cb;
2818 }
2819
2820 wait_for_completion_timeout(&ha->disable_acb_comp,
2821 DISABLE_ACB_TOV * HZ);
2822
2823 qla4xxx_initcb_to_acb(init_fw_cb);
2824
2825 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma);
2826 if (rval != QLA_SUCCESS) {
2827 ql4_printk(KERN_ERR, ha, "%s: set acb mbx failed\n",
2828 __func__);
2829 rval = -EIO;
2830 goto exit_init_fw_cb;
2831 }
2832
2833 memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk));
2834 qla4xxx_update_local_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb,
2835 init_fw_cb_dma);
2836
2837 exit_init_fw_cb:
2838 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk),
2839 init_fw_cb, init_fw_cb_dma);
2840
2841 return rval;
2842 }
2843
2844 static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess,
2845 enum iscsi_param param, char *buf)
2846 {
2847 struct iscsi_session *sess = cls_sess->dd_data;
2848 struct ddb_entry *ddb_entry = sess->dd_data;
2849 struct scsi_qla_host *ha = ddb_entry->ha;
2850 struct iscsi_cls_conn *cls_conn = ddb_entry->conn;
2851 struct ql4_chap_table chap_tbl;
2852 int rval, len;
2853 uint16_t idx;
2854
2855 memset(&chap_tbl, 0, sizeof(chap_tbl));
2856 switch (param) {
2857 case ISCSI_PARAM_CHAP_IN_IDX:
2858 rval = qla4xxx_get_chap_index(ha, sess->username_in,
2859 sess->password_in, BIDI_CHAP,
2860 &idx);
2861 if (rval)
2862 len = sprintf(buf, "\n");
2863 else
2864 len = sprintf(buf, "%hu\n", idx);
2865 break;
2866 case ISCSI_PARAM_CHAP_OUT_IDX:
2867 if (ddb_entry->ddb_type == FLASH_DDB) {
2868 if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) {
2869 idx = ddb_entry->chap_tbl_idx;
2870 rval = QLA_SUCCESS;
2871 } else {
2872 rval = QLA_ERROR;
2873 }
2874 } else {
2875 rval = qla4xxx_get_chap_index(ha, sess->username,
2876 sess->password,
2877 LOCAL_CHAP, &idx);
2878 }
2879 if (rval)
2880 len = sprintf(buf, "\n");
2881 else
2882 len = sprintf(buf, "%hu\n", idx);
2883 break;
2884 case ISCSI_PARAM_USERNAME:
2885 case ISCSI_PARAM_PASSWORD:
2886 /* First, populate session username and password for FLASH DDB,
2887 * if not already done. This happens when session login fails
2888 * for a FLASH DDB.
2889 */
2890 if (ddb_entry->ddb_type == FLASH_DDB &&
2891 ddb_entry->chap_tbl_idx != INVALID_ENTRY &&
2892 !sess->username && !sess->password) {
2893 idx = ddb_entry->chap_tbl_idx;
2894 rval = qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name,
2895 chap_tbl.secret,
2896 idx);
2897 if (!rval) {
2898 iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME,
2899 (char *)chap_tbl.name,
2900 strlen((char *)chap_tbl.name));
2901 iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD,
2902 (char *)chap_tbl.secret,
2903 chap_tbl.secret_len);
2904 }
2905 }
2906 fallthrough;
2907 default:
2908 return iscsi_session_get_param(cls_sess, param, buf);
2909 }
2910
2911 return len;
2912 }
2913
2914 static int qla4xxx_conn_get_param(struct iscsi_cls_conn *cls_conn,
2915 enum iscsi_param param, char *buf)
2916 {
2917 struct iscsi_conn *conn;
2918 struct qla_conn *qla_conn;
2919 struct sockaddr *dst_addr;
2920
2921 conn = cls_conn->dd_data;
2922 qla_conn = conn->dd_data;
2923 dst_addr = (struct sockaddr *)&qla_conn->qla_ep->dst_addr;
2924
2925 switch (param) {
2926 case ISCSI_PARAM_CONN_PORT:
2927 case ISCSI_PARAM_CONN_ADDRESS:
2928 return iscsi_conn_get_addr_param((struct sockaddr_storage *)
2929 dst_addr, param, buf);
2930 default:
2931 return iscsi_conn_get_param(cls_conn, param, buf);
2932 }
2933 }
2934
2935 int qla4xxx_get_ddb_index(struct scsi_qla_host *ha, uint16_t *ddb_index)
2936 {
2937 uint32_t mbx_sts = 0;
2938 uint16_t tmp_ddb_index;
2939 int ret;
2940
2941 get_ddb_index:
2942 tmp_ddb_index = find_first_zero_bit(ha->ddb_idx_map, MAX_DDB_ENTRIES);
2943
2944 if (tmp_ddb_index >= MAX_DDB_ENTRIES) {
2945 DEBUG2(ql4_printk(KERN_INFO, ha,
2946 "Free DDB index not available\n"));
2947 ret = QLA_ERROR;
2948 goto exit_get_ddb_index;
2949 }
2950
2951 if (test_and_set_bit(tmp_ddb_index, ha->ddb_idx_map))
2952 goto get_ddb_index;
2953
2954 DEBUG2(ql4_printk(KERN_INFO, ha,
2955 "Found a free DDB index at %d\n", tmp_ddb_index));
2956 ret = qla4xxx_req_ddb_entry(ha, tmp_ddb_index, &mbx_sts);
2957 if (ret == QLA_ERROR) {
2958 if (mbx_sts == MBOX_STS_COMMAND_ERROR) {
2959 ql4_printk(KERN_INFO, ha,
2960 "DDB index = %d not available trying next\n",
2961 tmp_ddb_index);
2962 goto get_ddb_index;
2963 }
2964 DEBUG2(ql4_printk(KERN_INFO, ha,
2965 "Free FW DDB not available\n"));
2966 }
2967
2968 *ddb_index = tmp_ddb_index;
2969
2970 exit_get_ddb_index:
2971 return ret;
2972 }
2973
2974 static int qla4xxx_match_ipaddress(struct scsi_qla_host *ha,
2975 struct ddb_entry *ddb_entry,
2976 char *existing_ipaddr,
2977 char *user_ipaddr)
2978 {
2979 uint8_t dst_ipaddr[IPv6_ADDR_LEN];
2980 char formatted_ipaddr[DDB_IPADDR_LEN];
2981 int status = QLA_SUCCESS, ret = 0;
2982
2983 if (ddb_entry->fw_ddb_entry.options & DDB_OPT_IPV6_DEVICE) {
2984 ret = in6_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr,
2985 '\0', NULL);
2986 if (ret == 0) {
2987 status = QLA_ERROR;
2988 goto out_match;
2989 }
2990 ret = sprintf(formatted_ipaddr, "%pI6", dst_ipaddr);
2991 } else {
2992 ret = in4_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr,
2993 '\0', NULL);
2994 if (ret == 0) {
2995 status = QLA_ERROR;
2996 goto out_match;
2997 }
2998 ret = sprintf(formatted_ipaddr, "%pI4", dst_ipaddr);
2999 }
3000
3001 if (strcmp(existing_ipaddr, formatted_ipaddr))
3002 status = QLA_ERROR;
3003
3004 out_match:
3005 return status;
3006 }
3007
3008 static int qla4xxx_match_fwdb_session(struct scsi_qla_host *ha,
3009 struct iscsi_cls_conn *cls_conn)
3010 {
3011 int idx = 0, max_ddbs, rval;
3012 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
3013 struct iscsi_session *sess, *existing_sess;
3014 struct iscsi_conn *conn, *existing_conn;
3015 struct ddb_entry *ddb_entry;
3016
3017 sess = cls_sess->dd_data;
3018 conn = cls_conn->dd_data;
3019
3020 if (sess->targetname == NULL ||
3021 conn->persistent_address == NULL ||
3022 conn->persistent_port == 0)
3023 return QLA_ERROR;
3024
3025 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
3026 MAX_DEV_DB_ENTRIES;
3027
3028 for (idx = 0; idx < max_ddbs; idx++) {
3029 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
3030 if (ddb_entry == NULL)
3031 continue;
3032
3033 if (ddb_entry->ddb_type != FLASH_DDB)
3034 continue;
3035
3036 existing_sess = ddb_entry->sess->dd_data;
3037 existing_conn = ddb_entry->conn->dd_data;
3038
3039 if (existing_sess->targetname == NULL ||
3040 existing_conn->persistent_address == NULL ||
3041 existing_conn->persistent_port == 0)
3042 continue;
3043
3044 DEBUG2(ql4_printk(KERN_INFO, ha,
3045 "IQN = %s User IQN = %s\n",
3046 existing_sess->targetname,
3047 sess->targetname));
3048
3049 DEBUG2(ql4_printk(KERN_INFO, ha,
3050 "IP = %s User IP = %s\n",
3051 existing_conn->persistent_address,
3052 conn->persistent_address));
3053
3054 DEBUG2(ql4_printk(KERN_INFO, ha,
3055 "Port = %d User Port = %d\n",
3056 existing_conn->persistent_port,
3057 conn->persistent_port));
3058
3059 if (strcmp(existing_sess->targetname, sess->targetname))
3060 continue;
3061 rval = qla4xxx_match_ipaddress(ha, ddb_entry,
3062 existing_conn->persistent_address,
3063 conn->persistent_address);
3064 if (rval == QLA_ERROR)
3065 continue;
3066 if (existing_conn->persistent_port != conn->persistent_port)
3067 continue;
3068 break;
3069 }
3070
3071 if (idx == max_ddbs)
3072 return QLA_ERROR;
3073
3074 DEBUG2(ql4_printk(KERN_INFO, ha,
3075 "Match found in fwdb sessions\n"));
3076 return QLA_SUCCESS;
3077 }
3078
3079 static struct iscsi_cls_session *
3080 qla4xxx_session_create(struct iscsi_endpoint *ep,
3081 uint16_t cmds_max, uint16_t qdepth,
3082 uint32_t initial_cmdsn)
3083 {
3084 struct iscsi_cls_session *cls_sess;
3085 struct scsi_qla_host *ha;
3086 struct qla_endpoint *qla_ep;
3087 struct ddb_entry *ddb_entry;
3088 uint16_t ddb_index;
3089 struct iscsi_session *sess;
3090 int ret;
3091
3092 if (!ep) {
3093 printk(KERN_ERR "qla4xxx: missing ep.\n");
3094 return NULL;
3095 }
3096
3097 qla_ep = ep->dd_data;
3098 ha = to_qla_host(qla_ep->host);
3099 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__,
3100 ha->host_no));
3101
3102 ret = qla4xxx_get_ddb_index(ha, &ddb_index);
3103 if (ret == QLA_ERROR)
3104 return NULL;
3105
3106 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, qla_ep->host,
3107 cmds_max, sizeof(struct ddb_entry),
3108 sizeof(struct ql4_task_data),
3109 initial_cmdsn, ddb_index);
3110 if (!cls_sess)
3111 return NULL;
3112
3113 sess = cls_sess->dd_data;
3114 ddb_entry = sess->dd_data;
3115 ddb_entry->fw_ddb_index = ddb_index;
3116 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE;
3117 ddb_entry->ha = ha;
3118 ddb_entry->sess = cls_sess;
3119 ddb_entry->unblock_sess = qla4xxx_unblock_ddb;
3120 ddb_entry->ddb_change = qla4xxx_ddb_change;
3121 clear_bit(DDB_CONN_CLOSE_FAILURE, &ddb_entry->flags);
3122 cls_sess->recovery_tmo = ql4xsess_recovery_tmo;
3123 ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry;
3124 ha->tot_ddbs++;
3125
3126 return cls_sess;
3127 }
3128
3129 static void qla4xxx_session_destroy(struct iscsi_cls_session *cls_sess)
3130 {
3131 struct iscsi_session *sess;
3132 struct ddb_entry *ddb_entry;
3133 struct scsi_qla_host *ha;
3134 unsigned long flags, wtime;
3135 struct dev_db_entry *fw_ddb_entry = NULL;
3136 dma_addr_t fw_ddb_entry_dma;
3137 uint32_t ddb_state;
3138 int ret;
3139
3140 sess = cls_sess->dd_data;
3141 ddb_entry = sess->dd_data;
3142 ha = ddb_entry->ha;
3143 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__,
3144 ha->host_no));
3145
3146 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3147 &fw_ddb_entry_dma, GFP_KERNEL);
3148 if (!fw_ddb_entry) {
3149 ql4_printk(KERN_ERR, ha,
3150 "%s: Unable to allocate dma buffer\n", __func__);
3151 goto destroy_session;
3152 }
3153
3154 wtime = jiffies + (HZ * LOGOUT_TOV);
3155 do {
3156 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
3157 fw_ddb_entry, fw_ddb_entry_dma,
3158 NULL, NULL, &ddb_state, NULL,
3159 NULL, NULL);
3160 if (ret == QLA_ERROR)
3161 goto destroy_session;
3162
3163 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) ||
3164 (ddb_state == DDB_DS_SESSION_FAILED))
3165 goto destroy_session;
3166
3167 schedule_timeout_uninterruptible(HZ);
3168 } while ((time_after(wtime, jiffies)));
3169
3170 destroy_session:
3171 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
3172 if (test_and_clear_bit(DDB_CONN_CLOSE_FAILURE, &ddb_entry->flags))
3173 clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map);
3174 spin_lock_irqsave(&ha->hardware_lock, flags);
3175 qla4xxx_free_ddb(ha, ddb_entry);
3176 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3177
3178 iscsi_session_teardown(cls_sess);
3179
3180 if (fw_ddb_entry)
3181 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3182 fw_ddb_entry, fw_ddb_entry_dma);
3183 }
3184
3185 static struct iscsi_cls_conn *
3186 qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx)
3187 {
3188 struct iscsi_cls_conn *cls_conn;
3189 struct iscsi_session *sess;
3190 struct ddb_entry *ddb_entry;
3191 struct scsi_qla_host *ha;
3192
3193 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn),
3194 conn_idx);
3195 if (!cls_conn) {
3196 pr_info("%s: Can not create connection for conn_idx = %u\n",
3197 __func__, conn_idx);
3198 return NULL;
3199 }
3200
3201 sess = cls_sess->dd_data;
3202 ddb_entry = sess->dd_data;
3203 ddb_entry->conn = cls_conn;
3204
3205 ha = ddb_entry->ha;
3206 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: conn_idx = %u\n", __func__,
3207 conn_idx));
3208 return cls_conn;
3209 }
3210
3211 static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session,
3212 struct iscsi_cls_conn *cls_conn,
3213 uint64_t transport_fd, int is_leading)
3214 {
3215 struct iscsi_conn *conn;
3216 struct qla_conn *qla_conn;
3217 struct iscsi_endpoint *ep;
3218 struct ddb_entry *ddb_entry;
3219 struct scsi_qla_host *ha;
3220 struct iscsi_session *sess;
3221
3222 sess = cls_session->dd_data;
3223 ddb_entry = sess->dd_data;
3224 ha = ddb_entry->ha;
3225
3226 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: sid = %d, cid = %d\n", __func__,
3227 cls_session->sid, cls_conn->cid));
3228
3229 if (iscsi_conn_bind(cls_session, cls_conn, is_leading))
3230 return -EINVAL;
3231 ep = iscsi_lookup_endpoint(transport_fd);
3232 if (!ep)
3233 return -EINVAL;
3234 conn = cls_conn->dd_data;
3235 qla_conn = conn->dd_data;
3236 qla_conn->qla_ep = ep->dd_data;
3237 return 0;
3238 }
3239
3240 static int qla4xxx_conn_start(struct iscsi_cls_conn *cls_conn)
3241 {
3242 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
3243 struct iscsi_session *sess;
3244 struct ddb_entry *ddb_entry;
3245 struct scsi_qla_host *ha;
3246 struct dev_db_entry *fw_ddb_entry = NULL;
3247 dma_addr_t fw_ddb_entry_dma;
3248 uint32_t mbx_sts = 0;
3249 int ret = 0;
3250 int status = QLA_SUCCESS;
3251
3252 sess = cls_sess->dd_data;
3253 ddb_entry = sess->dd_data;
3254 ha = ddb_entry->ha;
3255 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: sid = %d, cid = %d\n", __func__,
3256 cls_sess->sid, cls_conn->cid));
3257
3258 /* Check if we have matching FW DDB, if yes then do not
3259 * login to this target. This could cause target to logout previous
3260 * connection
3261 */
3262 ret = qla4xxx_match_fwdb_session(ha, cls_conn);
3263 if (ret == QLA_SUCCESS) {
3264 ql4_printk(KERN_INFO, ha,
3265 "Session already exist in FW.\n");
3266 ret = -EEXIST;
3267 goto exit_conn_start;
3268 }
3269
3270 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3271 &fw_ddb_entry_dma, GFP_KERNEL);
3272 if (!fw_ddb_entry) {
3273 ql4_printk(KERN_ERR, ha,
3274 "%s: Unable to allocate dma buffer\n", __func__);
3275 ret = -ENOMEM;
3276 goto exit_conn_start;
3277 }
3278
3279 ret = qla4xxx_set_param_ddbentry(ha, ddb_entry, cls_conn, &mbx_sts);
3280 if (ret) {
3281 /* If iscsid is stopped and started then no need to do
3282 * set param again since ddb state will be already
3283 * active and FW does not allow set ddb to an
3284 * active session.
3285 */
3286 if (mbx_sts)
3287 if (ddb_entry->fw_ddb_device_state ==
3288 DDB_DS_SESSION_ACTIVE) {
3289 ddb_entry->unblock_sess(ddb_entry->sess);
3290 goto exit_set_param;
3291 }
3292
3293 ql4_printk(KERN_ERR, ha, "%s: Failed set param for index[%d]\n",
3294 __func__, ddb_entry->fw_ddb_index);
3295 goto exit_conn_start;
3296 }
3297
3298 status = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index);
3299 if (status == QLA_ERROR) {
3300 ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__,
3301 sess->targetname);
3302 ret = -EINVAL;
3303 goto exit_conn_start;
3304 }
3305
3306 if (ddb_entry->fw_ddb_device_state == DDB_DS_NO_CONNECTION_ACTIVE)
3307 ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS;
3308
3309 DEBUG2(printk(KERN_INFO "%s: DDB state [%d]\n", __func__,
3310 ddb_entry->fw_ddb_device_state));
3311
3312 exit_set_param:
3313 ret = 0;
3314
3315 exit_conn_start:
3316 if (fw_ddb_entry)
3317 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3318 fw_ddb_entry, fw_ddb_entry_dma);
3319 return ret;
3320 }
3321
3322 static void qla4xxx_conn_destroy(struct iscsi_cls_conn *cls_conn)
3323 {
3324 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
3325 struct iscsi_session *sess;
3326 struct scsi_qla_host *ha;
3327 struct ddb_entry *ddb_entry;
3328 int options;
3329
3330 sess = cls_sess->dd_data;
3331 ddb_entry = sess->dd_data;
3332 ha = ddb_entry->ha;
3333 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: cid = %d\n", __func__,
3334 cls_conn->cid));
3335
3336 options = LOGOUT_OPTION_CLOSE_SESSION;
3337 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR)
3338 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__);
3339 }
3340
3341 static void qla4xxx_task_work(struct work_struct *wdata)
3342 {
3343 struct ql4_task_data *task_data;
3344 struct scsi_qla_host *ha;
3345 struct passthru_status *sts;
3346 struct iscsi_task *task;
3347 struct iscsi_hdr *hdr;
3348 uint8_t *data;
3349 uint32_t data_len;
3350 struct iscsi_conn *conn;
3351 int hdr_len;
3352 itt_t itt;
3353
3354 task_data = container_of(wdata, struct ql4_task_data, task_work);
3355 ha = task_data->ha;
3356 task = task_data->task;
3357 sts = &task_data->sts;
3358 hdr_len = sizeof(struct iscsi_hdr);
3359
3360 DEBUG3(printk(KERN_INFO "Status returned\n"));
3361 DEBUG3(qla4xxx_dump_buffer(sts, 64));
3362 DEBUG3(printk(KERN_INFO "Response buffer"));
3363 DEBUG3(qla4xxx_dump_buffer(task_data->resp_buffer, 64));
3364
3365 conn = task->conn;
3366
3367 switch (sts->completionStatus) {
3368 case PASSTHRU_STATUS_COMPLETE:
3369 hdr = (struct iscsi_hdr *)task_data->resp_buffer;
3370 /* Assign back the itt in hdr, until we use the PREASSIGN_TAG */
3371 itt = sts->handle;
3372 hdr->itt = itt;
3373 data = task_data->resp_buffer + hdr_len;
3374 data_len = task_data->resp_len - hdr_len;
3375 iscsi_complete_pdu(conn, hdr, data, data_len);
3376 break;
3377 default:
3378 ql4_printk(KERN_ERR, ha, "Passthru failed status = 0x%x\n",
3379 sts->completionStatus);
3380 break;
3381 }
3382 return;
3383 }
3384
3385 static int qla4xxx_alloc_pdu(struct iscsi_task *task, uint8_t opcode)
3386 {
3387 struct ql4_task_data *task_data;
3388 struct iscsi_session *sess;
3389 struct ddb_entry *ddb_entry;
3390 struct scsi_qla_host *ha;
3391 int hdr_len;
3392
3393 sess = task->conn->session;
3394 ddb_entry = sess->dd_data;
3395 ha = ddb_entry->ha;
3396 task_data = task->dd_data;
3397 memset(task_data, 0, sizeof(struct ql4_task_data));
3398
3399 if (task->sc) {
3400 ql4_printk(KERN_INFO, ha,
3401 "%s: SCSI Commands not implemented\n", __func__);
3402 return -EINVAL;
3403 }
3404
3405 hdr_len = sizeof(struct iscsi_hdr);
3406 task_data->ha = ha;
3407 task_data->task = task;
3408
3409 if (task->data_count) {
3410 task_data->data_dma = dma_map_single(&ha->pdev->dev, task->data,
3411 task->data_count,
3412 DMA_TO_DEVICE);
3413 }
3414
3415 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n",
3416 __func__, task->conn->max_recv_dlength, hdr_len));
3417
3418 task_data->resp_len = task->conn->max_recv_dlength + hdr_len;
3419 task_data->resp_buffer = dma_alloc_coherent(&ha->pdev->dev,
3420 task_data->resp_len,
3421 &task_data->resp_dma,
3422 GFP_ATOMIC);
3423 if (!task_data->resp_buffer)
3424 goto exit_alloc_pdu;
3425
3426 task_data->req_len = task->data_count + hdr_len;
3427 task_data->req_buffer = dma_alloc_coherent(&ha->pdev->dev,
3428 task_data->req_len,
3429 &task_data->req_dma,
3430 GFP_ATOMIC);
3431 if (!task_data->req_buffer)
3432 goto exit_alloc_pdu;
3433
3434 task->hdr = task_data->req_buffer;
3435
3436 INIT_WORK(&task_data->task_work, qla4xxx_task_work);
3437
3438 return 0;
3439
3440 exit_alloc_pdu:
3441 if (task_data->resp_buffer)
3442 dma_free_coherent(&ha->pdev->dev, task_data->resp_len,
3443 task_data->resp_buffer, task_data->resp_dma);
3444
3445 if (task_data->req_buffer)
3446 dma_free_coherent(&ha->pdev->dev, task_data->req_len,
3447 task_data->req_buffer, task_data->req_dma);
3448 return -ENOMEM;
3449 }
3450
3451 static void qla4xxx_task_cleanup(struct iscsi_task *task)
3452 {
3453 struct ql4_task_data *task_data;
3454 struct iscsi_session *sess;
3455 struct ddb_entry *ddb_entry;
3456 struct scsi_qla_host *ha;
3457 int hdr_len;
3458
3459 hdr_len = sizeof(struct iscsi_hdr);
3460 sess = task->conn->session;
3461 ddb_entry = sess->dd_data;
3462 ha = ddb_entry->ha;
3463 task_data = task->dd_data;
3464
3465 if (task->data_count) {
3466 dma_unmap_single(&ha->pdev->dev, task_data->data_dma,
3467 task->data_count, DMA_TO_DEVICE);
3468 }
3469
3470 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n",
3471 __func__, task->conn->max_recv_dlength, hdr_len));
3472
3473 dma_free_coherent(&ha->pdev->dev, task_data->resp_len,
3474 task_data->resp_buffer, task_data->resp_dma);
3475 dma_free_coherent(&ha->pdev->dev, task_data->req_len,
3476 task_data->req_buffer, task_data->req_dma);
3477 return;
3478 }
3479
3480 static int qla4xxx_task_xmit(struct iscsi_task *task)
3481 {
3482 struct scsi_cmnd *sc = task->sc;
3483 struct iscsi_session *sess = task->conn->session;
3484 struct ddb_entry *ddb_entry = sess->dd_data;
3485 struct scsi_qla_host *ha = ddb_entry->ha;
3486
3487 if (!sc)
3488 return qla4xxx_send_passthru0(task);
3489
3490 ql4_printk(KERN_INFO, ha, "%s: scsi cmd xmit not implemented\n",
3491 __func__);
3492 return -ENOSYS;
3493 }
3494
3495 static int qla4xxx_copy_from_fwddb_param(struct iscsi_bus_flash_session *sess,
3496 struct iscsi_bus_flash_conn *conn,
3497 struct dev_db_entry *fw_ddb_entry)
3498 {
3499 unsigned long options = 0;
3500 int rc = 0;
3501
3502 options = le16_to_cpu(fw_ddb_entry->options);
3503 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options);
3504 if (test_bit(OPT_IPV6_DEVICE, &options)) {
3505 rc = iscsi_switch_str_param(&sess->portal_type,
3506 PORTAL_TYPE_IPV6);
3507 if (rc)
3508 goto exit_copy;
3509 } else {
3510 rc = iscsi_switch_str_param(&sess->portal_type,
3511 PORTAL_TYPE_IPV4);
3512 if (rc)
3513 goto exit_copy;
3514 }
3515
3516 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE,
3517 &options);
3518 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options);
3519 sess->entry_state = test_bit(OPT_ENTRY_STATE, &options);
3520
3521 options = le16_to_cpu(fw_ddb_entry->iscsi_options);
3522 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options);
3523 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options);
3524 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options);
3525 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options);
3526 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER,
3527 &options);
3528 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options);
3529 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options);
3530 conn->snack_req_en = test_bit(ISCSIOPT_SNACK_REQ_EN, &options);
3531 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN,
3532 &options);
3533 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options);
3534 sess->discovery_auth_optional =
3535 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options);
3536 if (test_bit(ISCSIOPT_ERL1, &options))
3537 sess->erl |= BIT_1;
3538 if (test_bit(ISCSIOPT_ERL0, &options))
3539 sess->erl |= BIT_0;
3540
3541 options = le16_to_cpu(fw_ddb_entry->tcp_options);
3542 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options);
3543 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options);
3544 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options);
3545 if (test_bit(TCPOPT_TIMER_SCALE3, &options))
3546 conn->tcp_timer_scale |= BIT_3;
3547 if (test_bit(TCPOPT_TIMER_SCALE2, &options))
3548 conn->tcp_timer_scale |= BIT_2;
3549 if (test_bit(TCPOPT_TIMER_SCALE1, &options))
3550 conn->tcp_timer_scale |= BIT_1;
3551
3552 conn->tcp_timer_scale >>= 1;
3553 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options);
3554
3555 options = le16_to_cpu(fw_ddb_entry->ip_options);
3556 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options);
3557
3558 conn->max_recv_dlength = BYTE_UNITS *
3559 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len);
3560 conn->max_xmit_dlength = BYTE_UNITS *
3561 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len);
3562 sess->first_burst = BYTE_UNITS *
3563 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len);
3564 sess->max_burst = BYTE_UNITS *
3565 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len);
3566 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t);
3567 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
3568 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain);
3569 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
3570 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss);
3571 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf;
3572 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf;
3573 conn->ipv6_flow_label = le16_to_cpu(fw_ddb_entry->ipv6_flow_lbl);
3574 conn->keepalive_timeout = le16_to_cpu(fw_ddb_entry->ka_timeout);
3575 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port);
3576 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn);
3577 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn);
3578 sess->discovery_parent_idx = le16_to_cpu(fw_ddb_entry->ddb_link);
3579 sess->discovery_parent_type = le16_to_cpu(fw_ddb_entry->ddb_link);
3580 sess->chap_out_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
3581 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid);
3582
3583 sess->default_taskmgmt_timeout =
3584 le16_to_cpu(fw_ddb_entry->def_timeout);
3585 conn->port = le16_to_cpu(fw_ddb_entry->port);
3586
3587 options = le16_to_cpu(fw_ddb_entry->options);
3588 conn->ipaddress = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL);
3589 if (!conn->ipaddress) {
3590 rc = -ENOMEM;
3591 goto exit_copy;
3592 }
3593
3594 conn->redirect_ipaddr = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL);
3595 if (!conn->redirect_ipaddr) {
3596 rc = -ENOMEM;
3597 goto exit_copy;
3598 }
3599
3600 memcpy(conn->ipaddress, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN);
3601 memcpy(conn->redirect_ipaddr, fw_ddb_entry->tgt_addr, IPv6_ADDR_LEN);
3602
3603 if (test_bit(OPT_IPV6_DEVICE, &options)) {
3604 conn->ipv6_traffic_class = fw_ddb_entry->ipv4_tos;
3605
3606 conn->link_local_ipv6_addr = kmemdup(
3607 fw_ddb_entry->link_local_ipv6_addr,
3608 IPv6_ADDR_LEN, GFP_KERNEL);
3609 if (!conn->link_local_ipv6_addr) {
3610 rc = -ENOMEM;
3611 goto exit_copy;
3612 }
3613 } else {
3614 conn->ipv4_tos = fw_ddb_entry->ipv4_tos;
3615 }
3616
3617 if (fw_ddb_entry->iscsi_name[0]) {
3618 rc = iscsi_switch_str_param(&sess->targetname,
3619 (char *)fw_ddb_entry->iscsi_name);
3620 if (rc)
3621 goto exit_copy;
3622 }
3623
3624 if (fw_ddb_entry->iscsi_alias[0]) {
3625 rc = iscsi_switch_str_param(&sess->targetalias,
3626 (char *)fw_ddb_entry->iscsi_alias);
3627 if (rc)
3628 goto exit_copy;
3629 }
3630
3631 COPY_ISID(sess->isid, fw_ddb_entry->isid);
3632
3633 exit_copy:
3634 return rc;
3635 }
3636
3637 static int qla4xxx_copy_to_fwddb_param(struct iscsi_bus_flash_session *sess,
3638 struct iscsi_bus_flash_conn *conn,
3639 struct dev_db_entry *fw_ddb_entry)
3640 {
3641 uint16_t options;
3642 int rc = 0;
3643
3644 options = le16_to_cpu(fw_ddb_entry->options);
3645 SET_BITVAL(conn->is_fw_assigned_ipv6, options, BIT_11);
3646 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4))
3647 options |= BIT_8;
3648 else
3649 options &= ~BIT_8;
3650
3651 SET_BITVAL(sess->auto_snd_tgt_disable, options, BIT_6);
3652 SET_BITVAL(sess->discovery_sess, options, BIT_4);
3653 SET_BITVAL(sess->entry_state, options, BIT_3);
3654 fw_ddb_entry->options = cpu_to_le16(options);
3655
3656 options = le16_to_cpu(fw_ddb_entry->iscsi_options);
3657 SET_BITVAL(conn->hdrdgst_en, options, BIT_13);
3658 SET_BITVAL(conn->datadgst_en, options, BIT_12);
3659 SET_BITVAL(sess->imm_data_en, options, BIT_11);
3660 SET_BITVAL(sess->initial_r2t_en, options, BIT_10);
3661 SET_BITVAL(sess->dataseq_inorder_en, options, BIT_9);
3662 SET_BITVAL(sess->pdu_inorder_en, options, BIT_8);
3663 SET_BITVAL(sess->chap_auth_en, options, BIT_7);
3664 SET_BITVAL(conn->snack_req_en, options, BIT_6);
3665 SET_BITVAL(sess->discovery_logout_en, options, BIT_5);
3666 SET_BITVAL(sess->bidi_chap_en, options, BIT_4);
3667 SET_BITVAL(sess->discovery_auth_optional, options, BIT_3);
3668 SET_BITVAL(sess->erl & BIT_1, options, BIT_1);
3669 SET_BITVAL(sess->erl & BIT_0, options, BIT_0);
3670 fw_ddb_entry->iscsi_options = cpu_to_le16(options);
3671
3672 options = le16_to_cpu(fw_ddb_entry->tcp_options);
3673 SET_BITVAL(conn->tcp_timestamp_stat, options, BIT_6);
3674 SET_BITVAL(conn->tcp_nagle_disable, options, BIT_5);
3675 SET_BITVAL(conn->tcp_wsf_disable, options, BIT_4);
3676 SET_BITVAL(conn->tcp_timer_scale & BIT_2, options, BIT_3);
3677 SET_BITVAL(conn->tcp_timer_scale & BIT_1, options, BIT_2);
3678 SET_BITVAL(conn->tcp_timer_scale & BIT_0, options, BIT_1);
3679 SET_BITVAL(conn->tcp_timestamp_en, options, BIT_0);
3680 fw_ddb_entry->tcp_options = cpu_to_le16(options);
3681
3682 options = le16_to_cpu(fw_ddb_entry->ip_options);
3683 SET_BITVAL(conn->fragment_disable, options, BIT_4);
3684 fw_ddb_entry->ip_options = cpu_to_le16(options);
3685
3686 fw_ddb_entry->iscsi_max_outsnd_r2t = cpu_to_le16(sess->max_r2t);
3687 fw_ddb_entry->iscsi_max_rcv_data_seg_len =
3688 cpu_to_le16(conn->max_recv_dlength / BYTE_UNITS);
3689 fw_ddb_entry->iscsi_max_snd_data_seg_len =
3690 cpu_to_le16(conn->max_xmit_dlength / BYTE_UNITS);
3691 fw_ddb_entry->iscsi_first_burst_len =
3692 cpu_to_le16(sess->first_burst / BYTE_UNITS);
3693 fw_ddb_entry->iscsi_max_burst_len = cpu_to_le16(sess->max_burst /
3694 BYTE_UNITS);
3695 fw_ddb_entry->iscsi_def_time2wait = cpu_to_le16(sess->time2wait);
3696 fw_ddb_entry->iscsi_def_time2retain = cpu_to_le16(sess->time2retain);
3697 fw_ddb_entry->tgt_portal_grp = cpu_to_le16(sess->tpgt);
3698 fw_ddb_entry->mss = cpu_to_le16(conn->max_segment_size);
3699 fw_ddb_entry->tcp_xmt_wsf = (uint8_t) cpu_to_le32(conn->tcp_xmit_wsf);
3700 fw_ddb_entry->tcp_rcv_wsf = (uint8_t) cpu_to_le32(conn->tcp_recv_wsf);
3701 fw_ddb_entry->ipv6_flow_lbl = cpu_to_le16(conn->ipv6_flow_label);
3702 fw_ddb_entry->ka_timeout = cpu_to_le16(conn->keepalive_timeout);
3703 fw_ddb_entry->lcl_port = cpu_to_le16(conn->local_port);
3704 fw_ddb_entry->stat_sn = cpu_to_le32(conn->statsn);
3705 fw_ddb_entry->exp_stat_sn = cpu_to_le32(conn->exp_statsn);
3706 fw_ddb_entry->ddb_link = cpu_to_le16(sess->discovery_parent_idx);
3707 fw_ddb_entry->chap_tbl_idx = cpu_to_le16(sess->chap_out_idx);
3708 fw_ddb_entry->tsid = cpu_to_le16(sess->tsid);
3709 fw_ddb_entry->port = cpu_to_le16(conn->port);
3710 fw_ddb_entry->def_timeout =
3711 cpu_to_le16(sess->default_taskmgmt_timeout);
3712
3713 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4))
3714 fw_ddb_entry->ipv4_tos = conn->ipv6_traffic_class;
3715 else
3716 fw_ddb_entry->ipv4_tos = conn->ipv4_tos;
3717
3718 if (conn->ipaddress)
3719 memcpy(fw_ddb_entry->ip_addr, conn->ipaddress,
3720 sizeof(fw_ddb_entry->ip_addr));
3721
3722 if (conn->redirect_ipaddr)
3723 memcpy(fw_ddb_entry->tgt_addr, conn->redirect_ipaddr,
3724 sizeof(fw_ddb_entry->tgt_addr));
3725
3726 if (conn->link_local_ipv6_addr)
3727 memcpy(fw_ddb_entry->link_local_ipv6_addr,
3728 conn->link_local_ipv6_addr,
3729 sizeof(fw_ddb_entry->link_local_ipv6_addr));
3730
3731 if (sess->targetname)
3732 memcpy(fw_ddb_entry->iscsi_name, sess->targetname,
3733 sizeof(fw_ddb_entry->iscsi_name));
3734
3735 if (sess->targetalias)
3736 memcpy(fw_ddb_entry->iscsi_alias, sess->targetalias,
3737 sizeof(fw_ddb_entry->iscsi_alias));
3738
3739 COPY_ISID(fw_ddb_entry->isid, sess->isid);
3740
3741 return rc;
3742 }
3743
3744 static void qla4xxx_copy_to_sess_conn_params(struct iscsi_conn *conn,
3745 struct iscsi_session *sess,
3746 struct dev_db_entry *fw_ddb_entry)
3747 {
3748 unsigned long options = 0;
3749 uint16_t ddb_link;
3750 uint16_t disc_parent;
3751 char ip_addr[DDB_IPADDR_LEN];
3752
3753 options = le16_to_cpu(fw_ddb_entry->options);
3754 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options);
3755 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE,
3756 &options);
3757 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options);
3758
3759 options = le16_to_cpu(fw_ddb_entry->iscsi_options);
3760 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options);
3761 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options);
3762 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options);
3763 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options);
3764 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER,
3765 &options);
3766 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options);
3767 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options);
3768 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN,
3769 &options);
3770 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options);
3771 sess->discovery_auth_optional =
3772 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options);
3773 if (test_bit(ISCSIOPT_ERL1, &options))
3774 sess->erl |= BIT_1;
3775 if (test_bit(ISCSIOPT_ERL0, &options))
3776 sess->erl |= BIT_0;
3777
3778 options = le16_to_cpu(fw_ddb_entry->tcp_options);
3779 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options);
3780 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options);
3781 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options);
3782 if (test_bit(TCPOPT_TIMER_SCALE3, &options))
3783 conn->tcp_timer_scale |= BIT_3;
3784 if (test_bit(TCPOPT_TIMER_SCALE2, &options))
3785 conn->tcp_timer_scale |= BIT_2;
3786 if (test_bit(TCPOPT_TIMER_SCALE1, &options))
3787 conn->tcp_timer_scale |= BIT_1;
3788
3789 conn->tcp_timer_scale >>= 1;
3790 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options);
3791
3792 options = le16_to_cpu(fw_ddb_entry->ip_options);
3793 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options);
3794
3795 conn->max_recv_dlength = BYTE_UNITS *
3796 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len);
3797 conn->max_xmit_dlength = BYTE_UNITS *
3798 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len);
3799 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t);
3800 sess->first_burst = BYTE_UNITS *
3801 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len);
3802 sess->max_burst = BYTE_UNITS *
3803 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len);
3804 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
3805 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain);
3806 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
3807 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss);
3808 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf;
3809 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf;
3810 conn->ipv4_tos = fw_ddb_entry->ipv4_tos;
3811 conn->keepalive_tmo = le16_to_cpu(fw_ddb_entry->ka_timeout);
3812 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port);
3813 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn);
3814 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn);
3815 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid);
3816 COPY_ISID(sess->isid, fw_ddb_entry->isid);
3817
3818 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
3819 if (ddb_link == DDB_ISNS)
3820 disc_parent = ISCSI_DISC_PARENT_ISNS;
3821 else if (ddb_link == DDB_NO_LINK)
3822 disc_parent = ISCSI_DISC_PARENT_UNKNOWN;
3823 else if (ddb_link < MAX_DDB_ENTRIES)
3824 disc_parent = ISCSI_DISC_PARENT_SENDTGT;
3825 else
3826 disc_parent = ISCSI_DISC_PARENT_UNKNOWN;
3827
3828 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_DISCOVERY_PARENT_TYPE,
3829 iscsi_get_discovery_parent_name(disc_parent), 0);
3830
3831 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_TARGET_ALIAS,
3832 (char *)fw_ddb_entry->iscsi_alias, 0);
3833
3834 options = le16_to_cpu(fw_ddb_entry->options);
3835 if (options & DDB_OPT_IPV6_DEVICE) {
3836 memset(ip_addr, 0, sizeof(ip_addr));
3837 sprintf(ip_addr, "%pI6", fw_ddb_entry->link_local_ipv6_addr);
3838 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_LOCAL_IPADDR,
3839 (char *)ip_addr, 0);
3840 }
3841 }
3842
3843 static void qla4xxx_copy_fwddb_param(struct scsi_qla_host *ha,
3844 struct dev_db_entry *fw_ddb_entry,
3845 struct iscsi_cls_session *cls_sess,
3846 struct iscsi_cls_conn *cls_conn)
3847 {
3848 int buflen = 0;
3849 struct iscsi_session *sess;
3850 struct ddb_entry *ddb_entry;
3851 struct ql4_chap_table chap_tbl;
3852 struct iscsi_conn *conn;
3853 char ip_addr[DDB_IPADDR_LEN];
3854 uint16_t options = 0;
3855
3856 sess = cls_sess->dd_data;
3857 ddb_entry = sess->dd_data;
3858 conn = cls_conn->dd_data;
3859 memset(&chap_tbl, 0, sizeof(chap_tbl));
3860
3861 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
3862
3863 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry);
3864
3865 sess->def_taskmgmt_tmo = le16_to_cpu(fw_ddb_entry->def_timeout);
3866 conn->persistent_port = le16_to_cpu(fw_ddb_entry->port);
3867
3868 memset(ip_addr, 0, sizeof(ip_addr));
3869 options = le16_to_cpu(fw_ddb_entry->options);
3870 if (options & DDB_OPT_IPV6_DEVICE) {
3871 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv6", 4);
3872
3873 memset(ip_addr, 0, sizeof(ip_addr));
3874 sprintf(ip_addr, "%pI6", fw_ddb_entry->ip_addr);
3875 } else {
3876 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv4", 4);
3877 sprintf(ip_addr, "%pI4", fw_ddb_entry->ip_addr);
3878 }
3879
3880 iscsi_set_param(cls_conn, ISCSI_PARAM_PERSISTENT_ADDRESS,
3881 (char *)ip_addr, buflen);
3882 iscsi_set_param(cls_conn, ISCSI_PARAM_TARGET_NAME,
3883 (char *)fw_ddb_entry->iscsi_name, buflen);
3884 iscsi_set_param(cls_conn, ISCSI_PARAM_INITIATOR_NAME,
3885 (char *)ha->name_string, buflen);
3886
3887 if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) {
3888 if (!qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name,
3889 chap_tbl.secret,
3890 ddb_entry->chap_tbl_idx)) {
3891 iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME,
3892 (char *)chap_tbl.name,
3893 strlen((char *)chap_tbl.name));
3894 iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD,
3895 (char *)chap_tbl.secret,
3896 chap_tbl.secret_len);
3897 }
3898 }
3899 }
3900
3901 void qla4xxx_update_session_conn_fwddb_param(struct scsi_qla_host *ha,
3902 struct ddb_entry *ddb_entry)
3903 {
3904 struct iscsi_cls_session *cls_sess;
3905 struct iscsi_cls_conn *cls_conn;
3906 uint32_t ddb_state;
3907 dma_addr_t fw_ddb_entry_dma;
3908 struct dev_db_entry *fw_ddb_entry;
3909
3910 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3911 &fw_ddb_entry_dma, GFP_KERNEL);
3912 if (!fw_ddb_entry) {
3913 ql4_printk(KERN_ERR, ha,
3914 "%s: Unable to allocate dma buffer\n", __func__);
3915 goto exit_session_conn_fwddb_param;
3916 }
3917
3918 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry,
3919 fw_ddb_entry_dma, NULL, NULL, &ddb_state,
3920 NULL, NULL, NULL) == QLA_ERROR) {
3921 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
3922 "get_ddb_entry for fw_ddb_index %d\n",
3923 ha->host_no, __func__,
3924 ddb_entry->fw_ddb_index));
3925 goto exit_session_conn_fwddb_param;
3926 }
3927
3928 cls_sess = ddb_entry->sess;
3929
3930 cls_conn = ddb_entry->conn;
3931
3932 /* Update params */
3933 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn);
3934
3935 exit_session_conn_fwddb_param:
3936 if (fw_ddb_entry)
3937 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3938 fw_ddb_entry, fw_ddb_entry_dma);
3939 }
3940
3941 void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha,
3942 struct ddb_entry *ddb_entry)
3943 {
3944 struct iscsi_cls_session *cls_sess;
3945 struct iscsi_cls_conn *cls_conn;
3946 struct iscsi_session *sess;
3947 struct iscsi_conn *conn;
3948 uint32_t ddb_state;
3949 dma_addr_t fw_ddb_entry_dma;
3950 struct dev_db_entry *fw_ddb_entry;
3951
3952 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3953 &fw_ddb_entry_dma, GFP_KERNEL);
3954 if (!fw_ddb_entry) {
3955 ql4_printk(KERN_ERR, ha,
3956 "%s: Unable to allocate dma buffer\n", __func__);
3957 goto exit_session_conn_param;
3958 }
3959
3960 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry,
3961 fw_ddb_entry_dma, NULL, NULL, &ddb_state,
3962 NULL, NULL, NULL) == QLA_ERROR) {
3963 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
3964 "get_ddb_entry for fw_ddb_index %d\n",
3965 ha->host_no, __func__,
3966 ddb_entry->fw_ddb_index));
3967 goto exit_session_conn_param;
3968 }
3969
3970 cls_sess = ddb_entry->sess;
3971 sess = cls_sess->dd_data;
3972
3973 cls_conn = ddb_entry->conn;
3974 conn = cls_conn->dd_data;
3975
3976 /* Update timers after login */
3977 ddb_entry->default_relogin_timeout =
3978 (le16_to_cpu(fw_ddb_entry->def_timeout) > LOGIN_TOV) &&
3979 (le16_to_cpu(fw_ddb_entry->def_timeout) < LOGIN_TOV * 10) ?
3980 le16_to_cpu(fw_ddb_entry->def_timeout) : LOGIN_TOV;
3981 ddb_entry->default_time2wait =
3982 le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
3983
3984 /* Update params */
3985 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
3986 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry);
3987
3988 memcpy(sess->initiatorname, ha->name_string,
3989 min(sizeof(ha->name_string), sizeof(sess->initiatorname)));
3990
3991 exit_session_conn_param:
3992 if (fw_ddb_entry)
3993 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3994 fw_ddb_entry, fw_ddb_entry_dma);
3995 }
3996
3997 /*
3998 * Timer routines
3999 */
4000 static void qla4xxx_timer(struct timer_list *t);
4001
4002 static void qla4xxx_start_timer(struct scsi_qla_host *ha,
4003 unsigned long interval)
4004 {
4005 DEBUG(printk("scsi: %s: Starting timer thread for adapter %d\n",
4006 __func__, ha->host->host_no));
4007 timer_setup(&ha->timer, qla4xxx_timer, 0);
4008 ha->timer.expires = jiffies + interval * HZ;
4009 add_timer(&ha->timer);
4010 ha->timer_active = 1;
4011 }
4012
4013 static void qla4xxx_stop_timer(struct scsi_qla_host *ha)
4014 {
4015 del_timer_sync(&ha->timer);
4016 ha->timer_active = 0;
4017 }
4018
4019 /***
4020 * qla4xxx_mark_device_missing - blocks the session
4021 * @cls_session: Pointer to the session to be blocked
4022 * @ddb_entry: Pointer to device database entry
4023 *
4024 * This routine marks a device missing and close connection.
4025 **/
4026 void qla4xxx_mark_device_missing(struct iscsi_cls_session *cls_session)
4027 {
4028 iscsi_block_session(cls_session);
4029 }
4030
4031 /**
4032 * qla4xxx_mark_all_devices_missing - mark all devices as missing.
4033 * @ha: Pointer to host adapter structure.
4034 *
4035 * This routine marks a device missing and resets the relogin retry count.
4036 **/
4037 void qla4xxx_mark_all_devices_missing(struct scsi_qla_host *ha)
4038 {
4039 iscsi_host_for_each_session(ha->host, qla4xxx_mark_device_missing);
4040 }
4041
4042 static struct srb* qla4xxx_get_new_srb(struct scsi_qla_host *ha,
4043 struct ddb_entry *ddb_entry,
4044 struct scsi_cmnd *cmd)
4045 {
4046 struct srb *srb;
4047
4048 srb = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
4049 if (!srb)
4050 return srb;
4051
4052 kref_init(&srb->srb_ref);
4053 srb->ha = ha;
4054 srb->ddb = ddb_entry;
4055 srb->cmd = cmd;
4056 srb->flags = 0;
4057 CMD_SP(cmd) = (void *)srb;
4058
4059 return srb;
4060 }
4061
4062 static void qla4xxx_srb_free_dma(struct scsi_qla_host *ha, struct srb *srb)
4063 {
4064 struct scsi_cmnd *cmd = srb->cmd;
4065
4066 if (srb->flags & SRB_DMA_VALID) {
4067 scsi_dma_unmap(cmd);
4068 srb->flags &= ~SRB_DMA_VALID;
4069 }
4070 CMD_SP(cmd) = NULL;
4071 }
4072
4073 void qla4xxx_srb_compl(struct kref *ref)
4074 {
4075 struct srb *srb = container_of(ref, struct srb, srb_ref);
4076 struct scsi_cmnd *cmd = srb->cmd;
4077 struct scsi_qla_host *ha = srb->ha;
4078
4079 qla4xxx_srb_free_dma(ha, srb);
4080
4081 mempool_free(srb, ha->srb_mempool);
4082
4083 cmd->scsi_done(cmd);
4084 }
4085
4086 /**
4087 * qla4xxx_queuecommand - scsi layer issues scsi command to driver.
4088 * @host: scsi host
4089 * @cmd: Pointer to Linux's SCSI command structure
4090 *
4091 * Remarks:
4092 * This routine is invoked by Linux to send a SCSI command to the driver.
4093 * The mid-level driver tries to ensure that queuecommand never gets
4094 * invoked concurrently with itself or the interrupt handler (although
4095 * the interrupt handler may call this routine as part of request-
4096 * completion handling). Unfortunely, it sometimes calls the scheduler
4097 * in interrupt context which is a big NO! NO!.
4098 **/
4099 static int qla4xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
4100 {
4101 struct scsi_qla_host *ha = to_qla_host(host);
4102 struct ddb_entry *ddb_entry = cmd->device->hostdata;
4103 struct iscsi_cls_session *sess = ddb_entry->sess;
4104 struct srb *srb;
4105 int rval;
4106
4107 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
4108 if (test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags))
4109 cmd->result = DID_NO_CONNECT << 16;
4110 else
4111 cmd->result = DID_REQUEUE << 16;
4112 goto qc_fail_command;
4113 }
4114
4115 if (!sess) {
4116 cmd->result = DID_IMM_RETRY << 16;
4117 goto qc_fail_command;
4118 }
4119
4120 rval = iscsi_session_chkready(sess);
4121 if (rval) {
4122 cmd->result = rval;
4123 goto qc_fail_command;
4124 }
4125
4126 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
4127 test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) ||
4128 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
4129 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) ||
4130 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) ||
4131 !test_bit(AF_ONLINE, &ha->flags) ||
4132 !test_bit(AF_LINK_UP, &ha->flags) ||
4133 test_bit(AF_LOOPBACK, &ha->flags) ||
4134 test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags) ||
4135 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags) ||
4136 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))
4137 goto qc_host_busy;
4138
4139 srb = qla4xxx_get_new_srb(ha, ddb_entry, cmd);
4140 if (!srb)
4141 goto qc_host_busy;
4142
4143 rval = qla4xxx_send_command_to_isp(ha, srb);
4144 if (rval != QLA_SUCCESS)
4145 goto qc_host_busy_free_sp;
4146
4147 return 0;
4148
4149 qc_host_busy_free_sp:
4150 qla4xxx_srb_free_dma(ha, srb);
4151 mempool_free(srb, ha->srb_mempool);
4152
4153 qc_host_busy:
4154 return SCSI_MLQUEUE_HOST_BUSY;
4155
4156 qc_fail_command:
4157 cmd->scsi_done(cmd);
4158
4159 return 0;
4160 }
4161
4162 /**
4163 * qla4xxx_mem_free - frees memory allocated to adapter
4164 * @ha: Pointer to host adapter structure.
4165 *
4166 * Frees memory previously allocated by qla4xxx_mem_alloc
4167 **/
4168 static void qla4xxx_mem_free(struct scsi_qla_host *ha)
4169 {
4170 if (ha->queues)
4171 dma_free_coherent(&ha->pdev->dev, ha->queues_len, ha->queues,
4172 ha->queues_dma);
4173
4174 if (ha->fw_dump)
4175 vfree(ha->fw_dump);
4176
4177 ha->queues_len = 0;
4178 ha->queues = NULL;
4179 ha->queues_dma = 0;
4180 ha->request_ring = NULL;
4181 ha->request_dma = 0;
4182 ha->response_ring = NULL;
4183 ha->response_dma = 0;
4184 ha->shadow_regs = NULL;
4185 ha->shadow_regs_dma = 0;
4186 ha->fw_dump = NULL;
4187 ha->fw_dump_size = 0;
4188
4189 /* Free srb pool. */
4190 mempool_destroy(ha->srb_mempool);
4191 ha->srb_mempool = NULL;
4192
4193 dma_pool_destroy(ha->chap_dma_pool);
4194
4195 if (ha->chap_list)
4196 vfree(ha->chap_list);
4197 ha->chap_list = NULL;
4198
4199 dma_pool_destroy(ha->fw_ddb_dma_pool);
4200
4201 /* release io space registers */
4202 if (is_qla8022(ha)) {
4203 if (ha->nx_pcibase)
4204 iounmap(
4205 (struct device_reg_82xx __iomem *)ha->nx_pcibase);
4206 } else if (is_qla8032(ha) || is_qla8042(ha)) {
4207 if (ha->nx_pcibase)
4208 iounmap(
4209 (struct device_reg_83xx __iomem *)ha->nx_pcibase);
4210 } else if (ha->reg) {
4211 iounmap(ha->reg);
4212 }
4213
4214 if (ha->reset_tmplt.buff)
4215 vfree(ha->reset_tmplt.buff);
4216
4217 pci_release_regions(ha->pdev);
4218 }
4219
4220 /**
4221 * qla4xxx_mem_alloc - allocates memory for use by adapter.
4222 * @ha: Pointer to host adapter structure
4223 *
4224 * Allocates DMA memory for request and response queues. Also allocates memory
4225 * for srbs.
4226 **/
4227 static int qla4xxx_mem_alloc(struct scsi_qla_host *ha)
4228 {
4229 unsigned long align;
4230
4231 /* Allocate contiguous block of DMA memory for queues. */
4232 ha->queues_len = ((REQUEST_QUEUE_DEPTH * QUEUE_SIZE) +
4233 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE) +
4234 sizeof(struct shadow_regs) +
4235 MEM_ALIGN_VALUE +
4236 (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
4237 ha->queues = dma_alloc_coherent(&ha->pdev->dev, ha->queues_len,
4238 &ha->queues_dma, GFP_KERNEL);
4239 if (ha->queues == NULL) {
4240 ql4_printk(KERN_WARNING, ha,
4241 "Memory Allocation failed - queues.\n");
4242
4243 goto mem_alloc_error_exit;
4244 }
4245
4246 /*
4247 * As per RISC alignment requirements -- the bus-address must be a
4248 * multiple of the request-ring size (in bytes).
4249 */
4250 align = 0;
4251 if ((unsigned long)ha->queues_dma & (MEM_ALIGN_VALUE - 1))
4252 align = MEM_ALIGN_VALUE - ((unsigned long)ha->queues_dma &
4253 (MEM_ALIGN_VALUE - 1));
4254
4255 /* Update request and response queue pointers. */
4256 ha->request_dma = ha->queues_dma + align;
4257 ha->request_ring = (struct queue_entry *) (ha->queues + align);
4258 ha->response_dma = ha->queues_dma + align +
4259 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE);
4260 ha->response_ring = (struct queue_entry *) (ha->queues + align +
4261 (REQUEST_QUEUE_DEPTH *
4262 QUEUE_SIZE));
4263 ha->shadow_regs_dma = ha->queues_dma + align +
4264 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE) +
4265 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE);
4266 ha->shadow_regs = (struct shadow_regs *) (ha->queues + align +
4267 (REQUEST_QUEUE_DEPTH *
4268 QUEUE_SIZE) +
4269 (RESPONSE_QUEUE_DEPTH *
4270 QUEUE_SIZE));
4271
4272 /* Allocate memory for srb pool. */
4273 ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab,
4274 mempool_free_slab, srb_cachep);
4275 if (ha->srb_mempool == NULL) {
4276 ql4_printk(KERN_WARNING, ha,
4277 "Memory Allocation failed - SRB Pool.\n");
4278
4279 goto mem_alloc_error_exit;
4280 }
4281
4282 ha->chap_dma_pool = dma_pool_create("ql4_chap", &ha->pdev->dev,
4283 CHAP_DMA_BLOCK_SIZE, 8, 0);
4284
4285 if (ha->chap_dma_pool == NULL) {
4286 ql4_printk(KERN_WARNING, ha,
4287 "%s: chap_dma_pool allocation failed..\n", __func__);
4288 goto mem_alloc_error_exit;
4289 }
4290
4291 ha->fw_ddb_dma_pool = dma_pool_create("ql4_fw_ddb", &ha->pdev->dev,
4292 DDB_DMA_BLOCK_SIZE, 8, 0);
4293
4294 if (ha->fw_ddb_dma_pool == NULL) {
4295 ql4_printk(KERN_WARNING, ha,
4296 "%s: fw_ddb_dma_pool allocation failed..\n",
4297 __func__);
4298 goto mem_alloc_error_exit;
4299 }
4300
4301 return QLA_SUCCESS;
4302
4303 mem_alloc_error_exit:
4304 return QLA_ERROR;
4305 }
4306
4307 /**
4308 * qla4_8xxx_check_temp - Check the ISP82XX temperature.
4309 * @ha: adapter block pointer.
4310 *
4311 * Note: The caller should not hold the idc lock.
4312 **/
4313 static int qla4_8xxx_check_temp(struct scsi_qla_host *ha)
4314 {
4315 uint32_t temp, temp_state, temp_val;
4316 int status = QLA_SUCCESS;
4317
4318 temp = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_TEMP_STATE);
4319
4320 temp_state = qla82xx_get_temp_state(temp);
4321 temp_val = qla82xx_get_temp_val(temp);
4322
4323 if (temp_state == QLA82XX_TEMP_PANIC) {
4324 ql4_printk(KERN_WARNING, ha, "Device temperature %d degrees C"
4325 " exceeds maximum allowed. Hardware has been shut"
4326 " down.\n", temp_val);
4327 status = QLA_ERROR;
4328 } else if (temp_state == QLA82XX_TEMP_WARN) {
4329 if (ha->temperature == QLA82XX_TEMP_NORMAL)
4330 ql4_printk(KERN_WARNING, ha, "Device temperature %d"
4331 " degrees C exceeds operating range."
4332 " Immediate action needed.\n", temp_val);
4333 } else {
4334 if (ha->temperature == QLA82XX_TEMP_WARN)
4335 ql4_printk(KERN_INFO, ha, "Device temperature is"
4336 " now %d degrees C in normal range.\n",
4337 temp_val);
4338 }
4339 ha->temperature = temp_state;
4340 return status;
4341 }
4342
4343 /**
4344 * qla4_8xxx_check_fw_alive - Check firmware health
4345 * @ha: Pointer to host adapter structure.
4346 *
4347 * Context: Interrupt
4348 **/
4349 static int qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha)
4350 {
4351 uint32_t fw_heartbeat_counter;
4352 int status = QLA_SUCCESS;
4353
4354 fw_heartbeat_counter = qla4_8xxx_rd_direct(ha,
4355 QLA8XXX_PEG_ALIVE_COUNTER);
4356 /* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */
4357 if (fw_heartbeat_counter == 0xffffffff) {
4358 DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Device in frozen "
4359 "state, QLA82XX_PEG_ALIVE_COUNTER is 0xffffffff\n",
4360 ha->host_no, __func__));
4361 return status;
4362 }
4363
4364 if (ha->fw_heartbeat_counter == fw_heartbeat_counter) {
4365 ha->seconds_since_last_heartbeat++;
4366 /* FW not alive after 2 seconds */
4367 if (ha->seconds_since_last_heartbeat == 2) {
4368 ha->seconds_since_last_heartbeat = 0;
4369 qla4_8xxx_dump_peg_reg(ha);
4370 status = QLA_ERROR;
4371 }
4372 } else
4373 ha->seconds_since_last_heartbeat = 0;
4374
4375 ha->fw_heartbeat_counter = fw_heartbeat_counter;
4376 return status;
4377 }
4378
4379 static void qla4_8xxx_process_fw_error(struct scsi_qla_host *ha)
4380 {
4381 uint32_t halt_status;
4382 int halt_status_unrecoverable = 0;
4383
4384 halt_status = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_HALT_STATUS1);
4385
4386 if (is_qla8022(ha)) {
4387 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
4388 __func__);
4389 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
4390 CRB_NIU_XG_PAUSE_CTL_P0 |
4391 CRB_NIU_XG_PAUSE_CTL_P1);
4392
4393 if (QLA82XX_FWERROR_CODE(halt_status) == 0x67)
4394 ql4_printk(KERN_ERR, ha, "%s: Firmware aborted with error code 0x00006700. Device is being reset\n",
4395 __func__);
4396 if (halt_status & HALT_STATUS_UNRECOVERABLE)
4397 halt_status_unrecoverable = 1;
4398 } else if (is_qla8032(ha) || is_qla8042(ha)) {
4399 if (halt_status & QLA83XX_HALT_STATUS_FW_RESET)
4400 ql4_printk(KERN_ERR, ha, "%s: Firmware error detected device is being reset\n",
4401 __func__);
4402 else if (halt_status & QLA83XX_HALT_STATUS_UNRECOVERABLE)
4403 halt_status_unrecoverable = 1;
4404 }
4405
4406 /*
4407 * Since we cannot change dev_state in interrupt context,
4408 * set appropriate DPC flag then wakeup DPC
4409 */
4410 if (halt_status_unrecoverable) {
4411 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags);
4412 } else {
4413 ql4_printk(KERN_INFO, ha, "%s: detect abort needed!\n",
4414 __func__);
4415 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4416 }
4417 qla4xxx_mailbox_premature_completion(ha);
4418 qla4xxx_wake_dpc(ha);
4419 }
4420
4421 /**
4422 * qla4_8xxx_watchdog - Poll dev state
4423 * @ha: Pointer to host adapter structure.
4424 *
4425 * Context: Interrupt
4426 **/
4427 void qla4_8xxx_watchdog(struct scsi_qla_host *ha)
4428 {
4429 uint32_t dev_state;
4430 uint32_t idc_ctrl;
4431
4432 if (is_qla8032(ha) &&
4433 (qla4_83xx_is_detached(ha) == QLA_SUCCESS))
4434 WARN_ONCE(1, "%s: iSCSI function %d marked invisible\n",
4435 __func__, ha->func_num);
4436
4437 /* don't poll if reset is going on */
4438 if (!(test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) ||
4439 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
4440 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags))) {
4441 dev_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE);
4442
4443 if (qla4_8xxx_check_temp(ha)) {
4444 if (is_qla8022(ha)) {
4445 ql4_printk(KERN_INFO, ha, "disabling pause transmit on port 0 & 1.\n");
4446 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
4447 CRB_NIU_XG_PAUSE_CTL_P0 |
4448 CRB_NIU_XG_PAUSE_CTL_P1);
4449 }
4450 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags);
4451 qla4xxx_wake_dpc(ha);
4452 } else if (dev_state == QLA8XXX_DEV_NEED_RESET &&
4453 !test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
4454
4455 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED RESET!\n",
4456 __func__);
4457
4458 if (is_qla8032(ha) || is_qla8042(ha)) {
4459 idc_ctrl = qla4_83xx_rd_reg(ha,
4460 QLA83XX_IDC_DRV_CTRL);
4461 if (!(idc_ctrl & GRACEFUL_RESET_BIT1)) {
4462 ql4_printk(KERN_INFO, ha, "%s: Graceful reset bit is not set\n",
4463 __func__);
4464 qla4xxx_mailbox_premature_completion(
4465 ha);
4466 }
4467 }
4468
4469 if ((is_qla8032(ha) || is_qla8042(ha)) ||
4470 (is_qla8022(ha) && !ql4xdontresethba)) {
4471 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4472 qla4xxx_wake_dpc(ha);
4473 }
4474 } else if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT &&
4475 !test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) {
4476 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED QUIES!\n",
4477 __func__);
4478 set_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags);
4479 qla4xxx_wake_dpc(ha);
4480 } else {
4481 /* Check firmware health */
4482 if (qla4_8xxx_check_fw_alive(ha))
4483 qla4_8xxx_process_fw_error(ha);
4484 }
4485 }
4486 }
4487
4488 static void qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)
4489 {
4490 struct iscsi_session *sess;
4491 struct ddb_entry *ddb_entry;
4492 struct scsi_qla_host *ha;
4493
4494 sess = cls_sess->dd_data;
4495 ddb_entry = sess->dd_data;
4496 ha = ddb_entry->ha;
4497
4498 if (!(ddb_entry->ddb_type == FLASH_DDB))
4499 return;
4500
4501 if (adapter_up(ha) && !test_bit(DF_RELOGIN, &ddb_entry->flags) &&
4502 !iscsi_is_session_online(cls_sess)) {
4503 if (atomic_read(&ddb_entry->retry_relogin_timer) !=
4504 INVALID_ENTRY) {
4505 if (atomic_read(&ddb_entry->retry_relogin_timer) ==
4506 0) {
4507 atomic_set(&ddb_entry->retry_relogin_timer,
4508 INVALID_ENTRY);
4509 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
4510 set_bit(DF_RELOGIN, &ddb_entry->flags);
4511 DEBUG2(ql4_printk(KERN_INFO, ha,
4512 "%s: index [%d] login device\n",
4513 __func__, ddb_entry->fw_ddb_index));
4514 } else
4515 atomic_dec(&ddb_entry->retry_relogin_timer);
4516 }
4517 }
4518
4519 /* Wait for relogin to timeout */
4520 if (atomic_read(&ddb_entry->relogin_timer) &&
4521 (atomic_dec_and_test(&ddb_entry->relogin_timer) != 0)) {
4522 /*
4523 * If the relogin times out and the device is
4524 * still NOT ONLINE then try and relogin again.
4525 */
4526 if (!iscsi_is_session_online(cls_sess)) {
4527 /* Reset retry relogin timer */
4528 atomic_inc(&ddb_entry->relogin_retry_count);
4529 DEBUG2(ql4_printk(KERN_INFO, ha,
4530 "%s: index[%d] relogin timed out-retrying"
4531 " relogin (%d), retry (%d)\n", __func__,
4532 ddb_entry->fw_ddb_index,
4533 atomic_read(&ddb_entry->relogin_retry_count),
4534 ddb_entry->default_time2wait + 4));
4535 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
4536 atomic_set(&ddb_entry->retry_relogin_timer,
4537 ddb_entry->default_time2wait + 4);
4538 }
4539 }
4540 }
4541
4542 /**
4543 * qla4xxx_timer - checks every second for work to do.
4544 * @t: Context to obtain pointer to host adapter structure.
4545 **/
4546 static void qla4xxx_timer(struct timer_list *t)
4547 {
4548 struct scsi_qla_host *ha = from_timer(ha, t, timer);
4549 int start_dpc = 0;
4550 uint16_t w;
4551
4552 iscsi_host_for_each_session(ha->host, qla4xxx_check_relogin_flash_ddb);
4553
4554 /* If we are in the middle of AER/EEH processing
4555 * skip any processing and reschedule the timer
4556 */
4557 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
4558 mod_timer(&ha->timer, jiffies + HZ);
4559 return;
4560 }
4561
4562 /* Hardware read to trigger an EEH error during mailbox waits. */
4563 if (!pci_channel_offline(ha->pdev))
4564 pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
4565
4566 if (is_qla80XX(ha))
4567 qla4_8xxx_watchdog(ha);
4568
4569 if (is_qla40XX(ha)) {
4570 /* Check for heartbeat interval. */
4571 if (ha->firmware_options & FWOPT_HEARTBEAT_ENABLE &&
4572 ha->heartbeat_interval != 0) {
4573 ha->seconds_since_last_heartbeat++;
4574 if (ha->seconds_since_last_heartbeat >
4575 ha->heartbeat_interval + 2)
4576 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4577 }
4578 }
4579
4580 /* Process any deferred work. */
4581 if (!list_empty(&ha->work_list))
4582 start_dpc++;
4583
4584 /* Wakeup the dpc routine for this adapter, if needed. */
4585 if (start_dpc ||
4586 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
4587 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags) ||
4588 test_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags) ||
4589 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) ||
4590 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
4591 test_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags) ||
4592 test_bit(DPC_LINK_CHANGED, &ha->dpc_flags) ||
4593 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) ||
4594 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) ||
4595 test_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags) ||
4596 test_bit(DPC_AEN, &ha->dpc_flags)) {
4597 DEBUG2(printk("scsi%ld: %s: scheduling dpc routine"
4598 " - dpc flags = 0x%lx\n",
4599 ha->host_no, __func__, ha->dpc_flags));
4600 qla4xxx_wake_dpc(ha);
4601 }
4602
4603 /* Reschedule timer thread to call us back in one second */
4604 mod_timer(&ha->timer, jiffies + HZ);
4605
4606 DEBUG2(ha->seconds_since_last_intr++);
4607 }
4608
4609 /**
4610 * qla4xxx_cmd_wait - waits for all outstanding commands to complete
4611 * @ha: Pointer to host adapter structure.
4612 *
4613 * This routine stalls the driver until all outstanding commands are returned.
4614 * Caller must release the Hardware Lock prior to calling this routine.
4615 **/
4616 static int qla4xxx_cmd_wait(struct scsi_qla_host *ha)
4617 {
4618 uint32_t index = 0;
4619 unsigned long flags;
4620 struct scsi_cmnd *cmd;
4621 unsigned long wtime;
4622 uint32_t wtmo;
4623
4624 if (is_qla40XX(ha))
4625 wtmo = WAIT_CMD_TOV;
4626 else
4627 wtmo = ha->nx_reset_timeout / 2;
4628
4629 wtime = jiffies + (wtmo * HZ);
4630
4631 DEBUG2(ql4_printk(KERN_INFO, ha,
4632 "Wait up to %u seconds for cmds to complete\n",
4633 wtmo));
4634
4635 while (!time_after_eq(jiffies, wtime)) {
4636 spin_lock_irqsave(&ha->hardware_lock, flags);
4637 /* Find a command that hasn't completed. */
4638 for (index = 0; index < ha->host->can_queue; index++) {
4639 cmd = scsi_host_find_tag(ha->host, index);
4640 /*
4641 * We cannot just check if the index is valid,
4642 * becase if we are run from the scsi eh, then
4643 * the scsi/block layer is going to prevent
4644 * the tag from being released.
4645 */
4646 if (cmd != NULL && CMD_SP(cmd))
4647 break;
4648 }
4649 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4650
4651 /* If No Commands are pending, wait is complete */
4652 if (index == ha->host->can_queue)
4653 return QLA_SUCCESS;
4654
4655 msleep(1000);
4656 }
4657 /* If we timed out on waiting for commands to come back
4658 * return ERROR. */
4659 return QLA_ERROR;
4660 }
4661
4662 int qla4xxx_hw_reset(struct scsi_qla_host *ha)
4663 {
4664 uint32_t ctrl_status;
4665 unsigned long flags = 0;
4666
4667 DEBUG2(printk(KERN_ERR "scsi%ld: %s\n", ha->host_no, __func__));
4668
4669 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS)
4670 return QLA_ERROR;
4671
4672 spin_lock_irqsave(&ha->hardware_lock, flags);
4673
4674 /*
4675 * If the SCSI Reset Interrupt bit is set, clear it.
4676 * Otherwise, the Soft Reset won't work.
4677 */
4678 ctrl_status = readw(&ha->reg->ctrl_status);
4679 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0)
4680 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status);
4681
4682 /* Issue Soft Reset */
4683 writel(set_rmask(CSR_SOFT_RESET), &ha->reg->ctrl_status);
4684 readl(&ha->reg->ctrl_status);
4685
4686 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4687 return QLA_SUCCESS;
4688 }
4689
4690 /**
4691 * qla4xxx_soft_reset - performs soft reset.
4692 * @ha: Pointer to host adapter structure.
4693 **/
4694 int qla4xxx_soft_reset(struct scsi_qla_host *ha)
4695 {
4696 uint32_t max_wait_time;
4697 unsigned long flags = 0;
4698 int status;
4699 uint32_t ctrl_status;
4700
4701 status = qla4xxx_hw_reset(ha);
4702 if (status != QLA_SUCCESS)
4703 return status;
4704
4705 status = QLA_ERROR;
4706 /* Wait until the Network Reset Intr bit is cleared */
4707 max_wait_time = RESET_INTR_TOV;
4708 do {
4709 spin_lock_irqsave(&ha->hardware_lock, flags);
4710 ctrl_status = readw(&ha->reg->ctrl_status);
4711 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4712
4713 if ((ctrl_status & CSR_NET_RESET_INTR) == 0)
4714 break;
4715
4716 msleep(1000);
4717 } while ((--max_wait_time));
4718
4719 if ((ctrl_status & CSR_NET_RESET_INTR) != 0) {
4720 DEBUG2(printk(KERN_WARNING
4721 "scsi%ld: Network Reset Intr not cleared by "
4722 "Network function, clearing it now!\n",
4723 ha->host_no));
4724 spin_lock_irqsave(&ha->hardware_lock, flags);
4725 writel(set_rmask(CSR_NET_RESET_INTR), &ha->reg->ctrl_status);
4726 readl(&ha->reg->ctrl_status);
4727 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4728 }
4729
4730 /* Wait until the firmware tells us the Soft Reset is done */
4731 max_wait_time = SOFT_RESET_TOV;
4732 do {
4733 spin_lock_irqsave(&ha->hardware_lock, flags);
4734 ctrl_status = readw(&ha->reg->ctrl_status);
4735 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4736
4737 if ((ctrl_status & CSR_SOFT_RESET) == 0) {
4738 status = QLA_SUCCESS;
4739 break;
4740 }
4741
4742 msleep(1000);
4743 } while ((--max_wait_time));
4744
4745 /*
4746 * Also, make sure that the SCSI Reset Interrupt bit has been cleared
4747 * after the soft reset has taken place.
4748 */
4749 spin_lock_irqsave(&ha->hardware_lock, flags);
4750 ctrl_status = readw(&ha->reg->ctrl_status);
4751 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) {
4752 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status);
4753 readl(&ha->reg->ctrl_status);
4754 }
4755 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4756
4757 /* If soft reset fails then most probably the bios on other
4758 * function is also enabled.
4759 * Since the initialization is sequential the other fn
4760 * wont be able to acknowledge the soft reset.
4761 * Issue a force soft reset to workaround this scenario.
4762 */
4763 if (max_wait_time == 0) {
4764 /* Issue Force Soft Reset */
4765 spin_lock_irqsave(&ha->hardware_lock, flags);
4766 writel(set_rmask(CSR_FORCE_SOFT_RESET), &ha->reg->ctrl_status);
4767 readl(&ha->reg->ctrl_status);
4768 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4769 /* Wait until the firmware tells us the Soft Reset is done */
4770 max_wait_time = SOFT_RESET_TOV;
4771 do {
4772 spin_lock_irqsave(&ha->hardware_lock, flags);
4773 ctrl_status = readw(&ha->reg->ctrl_status);
4774 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4775
4776 if ((ctrl_status & CSR_FORCE_SOFT_RESET) == 0) {
4777 status = QLA_SUCCESS;
4778 break;
4779 }
4780
4781 msleep(1000);
4782 } while ((--max_wait_time));
4783 }
4784
4785 return status;
4786 }
4787
4788 /**
4789 * qla4xxx_abort_active_cmds - returns all outstanding i/o requests to O.S.
4790 * @ha: Pointer to host adapter structure.
4791 * @res: returned scsi status
4792 *
4793 * This routine is called just prior to a HARD RESET to return all
4794 * outstanding commands back to the Operating System.
4795 * Caller should make sure that the following locks are released
4796 * before this calling routine: Hardware lock, and io_request_lock.
4797 **/
4798 static void qla4xxx_abort_active_cmds(struct scsi_qla_host *ha, int res)
4799 {
4800 struct srb *srb;
4801 int i;
4802 unsigned long flags;
4803
4804 spin_lock_irqsave(&ha->hardware_lock, flags);
4805 for (i = 0; i < ha->host->can_queue; i++) {
4806 srb = qla4xxx_del_from_active_array(ha, i);
4807 if (srb != NULL) {
4808 srb->cmd->result = res;
4809 kref_put(&srb->srb_ref, qla4xxx_srb_compl);
4810 }
4811 }
4812 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4813 }
4814
4815 void qla4xxx_dead_adapter_cleanup(struct scsi_qla_host *ha)
4816 {
4817 clear_bit(AF_ONLINE, &ha->flags);
4818
4819 /* Disable the board */
4820 ql4_printk(KERN_INFO, ha, "Disabling the board\n");
4821
4822 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
4823 qla4xxx_mark_all_devices_missing(ha);
4824 clear_bit(AF_INIT_DONE, &ha->flags);
4825 }
4826
4827 static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session)
4828 {
4829 struct iscsi_session *sess;
4830 struct ddb_entry *ddb_entry;
4831
4832 sess = cls_session->dd_data;
4833 ddb_entry = sess->dd_data;
4834 ddb_entry->fw_ddb_device_state = DDB_DS_SESSION_FAILED;
4835
4836 if (ddb_entry->ddb_type == FLASH_DDB)
4837 iscsi_block_session(ddb_entry->sess);
4838 else
4839 iscsi_session_failure(cls_session->dd_data,
4840 ISCSI_ERR_CONN_FAILED);
4841 }
4842
4843 /**
4844 * qla4xxx_recover_adapter - recovers adapter after a fatal error
4845 * @ha: Pointer to host adapter structure.
4846 **/
4847 static int qla4xxx_recover_adapter(struct scsi_qla_host *ha)
4848 {
4849 int status = QLA_ERROR;
4850 uint8_t reset_chip = 0;
4851 uint32_t dev_state;
4852 unsigned long wait;
4853
4854 /* Stall incoming I/O until we are done */
4855 scsi_block_requests(ha->host);
4856 clear_bit(AF_ONLINE, &ha->flags);
4857 clear_bit(AF_LINK_UP, &ha->flags);
4858
4859 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: adapter OFFLINE\n", __func__));
4860
4861 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
4862
4863 if ((is_qla8032(ha) || is_qla8042(ha)) &&
4864 !test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) {
4865 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
4866 __func__);
4867 /* disable pause frame for ISP83xx */
4868 qla4_83xx_disable_pause(ha);
4869 }
4870
4871 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session);
4872
4873 if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
4874 reset_chip = 1;
4875
4876 /* For the DPC_RESET_HA_INTR case (ISP-4xxx specific)
4877 * do not reset adapter, jump to initialize_adapter */
4878 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
4879 status = QLA_SUCCESS;
4880 goto recover_ha_init_adapter;
4881 }
4882
4883 /* For the ISP-8xxx adapter, issue a stop_firmware if invoked
4884 * from eh_host_reset or ioctl module */
4885 if (is_qla80XX(ha) && !reset_chip &&
4886 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) {
4887
4888 DEBUG2(ql4_printk(KERN_INFO, ha,
4889 "scsi%ld: %s - Performing stop_firmware...\n",
4890 ha->host_no, __func__));
4891 status = ha->isp_ops->reset_firmware(ha);
4892 if (status == QLA_SUCCESS) {
4893 ha->isp_ops->disable_intrs(ha);
4894 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
4895 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
4896 } else {
4897 /* If the stop_firmware fails then
4898 * reset the entire chip */
4899 reset_chip = 1;
4900 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
4901 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4902 }
4903 }
4904
4905 /* Issue full chip reset if recovering from a catastrophic error,
4906 * or if stop_firmware fails for ISP-8xxx.
4907 * This is the default case for ISP-4xxx */
4908 if (is_qla40XX(ha) || reset_chip) {
4909 if (is_qla40XX(ha))
4910 goto chip_reset;
4911
4912 /* Check if 8XXX firmware is alive or not
4913 * We may have arrived here from NEED_RESET
4914 * detection only */
4915 if (test_bit(AF_FW_RECOVERY, &ha->flags))
4916 goto chip_reset;
4917
4918 wait = jiffies + (FW_ALIVE_WAIT_TOV * HZ);
4919 while (time_before(jiffies, wait)) {
4920 if (qla4_8xxx_check_fw_alive(ha)) {
4921 qla4xxx_mailbox_premature_completion(ha);
4922 break;
4923 }
4924
4925 set_current_state(TASK_UNINTERRUPTIBLE);
4926 schedule_timeout(HZ);
4927 }
4928 chip_reset:
4929 if (!test_bit(AF_FW_RECOVERY, &ha->flags))
4930 qla4xxx_cmd_wait(ha);
4931
4932 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
4933 DEBUG2(ql4_printk(KERN_INFO, ha,
4934 "scsi%ld: %s - Performing chip reset..\n",
4935 ha->host_no, __func__));
4936 status = ha->isp_ops->reset_chip(ha);
4937 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
4938 }
4939
4940 /* Flush any pending ddb changed AENs */
4941 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
4942
4943 recover_ha_init_adapter:
4944 /* Upon successful firmware/chip reset, re-initialize the adapter */
4945 if (status == QLA_SUCCESS) {
4946 /* For ISP-4xxx, force function 1 to always initialize
4947 * before function 3 to prevent both funcions from
4948 * stepping on top of the other */
4949 if (is_qla40XX(ha) && (ha->mac_index == 3))
4950 ssleep(6);
4951
4952 /* NOTE: AF_ONLINE flag set upon successful completion of
4953 * qla4xxx_initialize_adapter */
4954 status = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
4955 if (is_qla80XX(ha) && (status == QLA_ERROR)) {
4956 status = qla4_8xxx_check_init_adapter_retry(ha);
4957 if (status == QLA_ERROR) {
4958 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Don't retry recover adapter\n",
4959 ha->host_no, __func__);
4960 qla4xxx_dead_adapter_cleanup(ha);
4961 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
4962 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
4963 clear_bit(DPC_RESET_HA_FW_CONTEXT,
4964 &ha->dpc_flags);
4965 goto exit_recover;
4966 }
4967 }
4968 }
4969
4970 /* Retry failed adapter initialization, if necessary
4971 * Do not retry initialize_adapter for RESET_HA_INTR (ISP-4xxx specific)
4972 * case to prevent ping-pong resets between functions */
4973 if (!test_bit(AF_ONLINE, &ha->flags) &&
4974 !test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
4975 /* Adapter initialization failed, see if we can retry
4976 * resetting the ha.
4977 * Since we don't want to block the DPC for too long
4978 * with multiple resets in the same thread,
4979 * utilize DPC to retry */
4980 if (is_qla80XX(ha)) {
4981 ha->isp_ops->idc_lock(ha);
4982 dev_state = qla4_8xxx_rd_direct(ha,
4983 QLA8XXX_CRB_DEV_STATE);
4984 ha->isp_ops->idc_unlock(ha);
4985 if (dev_state == QLA8XXX_DEV_FAILED) {
4986 ql4_printk(KERN_INFO, ha, "%s: don't retry "
4987 "recover adapter. H/W is in Failed "
4988 "state\n", __func__);
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 goto exit_recover;
4997 }
4998 }
4999
5000 if (!test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags)) {
5001 ha->retry_reset_ha_cnt = MAX_RESET_HA_RETRIES;
5002 DEBUG2(printk("scsi%ld: recover adapter - retrying "
5003 "(%d) more times\n", ha->host_no,
5004 ha->retry_reset_ha_cnt));
5005 set_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
5006 status = QLA_ERROR;
5007 } else {
5008 if (ha->retry_reset_ha_cnt > 0) {
5009 /* Schedule another Reset HA--DPC will retry */
5010 ha->retry_reset_ha_cnt--;
5011 DEBUG2(printk("scsi%ld: recover adapter - "
5012 "retry remaining %d\n",
5013 ha->host_no,
5014 ha->retry_reset_ha_cnt));
5015 status = QLA_ERROR;
5016 }
5017
5018 if (ha->retry_reset_ha_cnt == 0) {
5019 /* Recover adapter retries have been exhausted.
5020 * Adapter DEAD */
5021 DEBUG2(printk("scsi%ld: recover adapter "
5022 "failed - board disabled\n",
5023 ha->host_no));
5024 qla4xxx_dead_adapter_cleanup(ha);
5025 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
5026 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
5027 clear_bit(DPC_RESET_HA_FW_CONTEXT,
5028 &ha->dpc_flags);
5029 status = QLA_ERROR;
5030 }
5031 }
5032 } else {
5033 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
5034 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
5035 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
5036 }
5037
5038 exit_recover:
5039 ha->adapter_error_count++;
5040
5041 if (test_bit(AF_ONLINE, &ha->flags))
5042 ha->isp_ops->enable_intrs(ha);
5043
5044 scsi_unblock_requests(ha->host);
5045
5046 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
5047 DEBUG2(printk("scsi%ld: recover adapter: %s\n", ha->host_no,
5048 status == QLA_ERROR ? "FAILED" : "SUCCEEDED"));
5049
5050 return status;
5051 }
5052
5053 static void qla4xxx_relogin_devices(struct iscsi_cls_session *cls_session)
5054 {
5055 struct iscsi_session *sess;
5056 struct ddb_entry *ddb_entry;
5057 struct scsi_qla_host *ha;
5058
5059 sess = cls_session->dd_data;
5060 ddb_entry = sess->dd_data;
5061 ha = ddb_entry->ha;
5062 if (!iscsi_is_session_online(cls_session)) {
5063 if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) {
5064 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5065 " unblock session\n", ha->host_no, __func__,
5066 ddb_entry->fw_ddb_index);
5067 iscsi_unblock_session(ddb_entry->sess);
5068 } else {
5069 /* Trigger relogin */
5070 if (ddb_entry->ddb_type == FLASH_DDB) {
5071 if (!(test_bit(DF_RELOGIN, &ddb_entry->flags) ||
5072 test_bit(DF_DISABLE_RELOGIN,
5073 &ddb_entry->flags)))
5074 qla4xxx_arm_relogin_timer(ddb_entry);
5075 } else
5076 iscsi_session_failure(cls_session->dd_data,
5077 ISCSI_ERR_CONN_FAILED);
5078 }
5079 }
5080 }
5081
5082 int qla4xxx_unblock_flash_ddb(struct iscsi_cls_session *cls_session)
5083 {
5084 struct iscsi_session *sess;
5085 struct ddb_entry *ddb_entry;
5086 struct scsi_qla_host *ha;
5087
5088 sess = cls_session->dd_data;
5089 ddb_entry = sess->dd_data;
5090 ha = ddb_entry->ha;
5091 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5092 " unblock session\n", ha->host_no, __func__,
5093 ddb_entry->fw_ddb_index);
5094
5095 iscsi_unblock_session(ddb_entry->sess);
5096
5097 /* Start scan target */
5098 if (test_bit(AF_ONLINE, &ha->flags)) {
5099 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5100 " start scan\n", ha->host_no, __func__,
5101 ddb_entry->fw_ddb_index);
5102 scsi_queue_work(ha->host, &ddb_entry->sess->scan_work);
5103 }
5104 return QLA_SUCCESS;
5105 }
5106
5107 int qla4xxx_unblock_ddb(struct iscsi_cls_session *cls_session)
5108 {
5109 struct iscsi_session *sess;
5110 struct ddb_entry *ddb_entry;
5111 struct scsi_qla_host *ha;
5112 int status = QLA_SUCCESS;
5113
5114 sess = cls_session->dd_data;
5115 ddb_entry = sess->dd_data;
5116 ha = ddb_entry->ha;
5117 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5118 " unblock user space session\n", ha->host_no, __func__,
5119 ddb_entry->fw_ddb_index);
5120
5121 if (!iscsi_is_session_online(cls_session)) {
5122 iscsi_conn_start(ddb_entry->conn);
5123 iscsi_conn_login_event(ddb_entry->conn,
5124 ISCSI_CONN_STATE_LOGGED_IN);
5125 } else {
5126 ql4_printk(KERN_INFO, ha,
5127 "scsi%ld: %s: ddb[%d] session [%d] already logged in\n",
5128 ha->host_no, __func__, ddb_entry->fw_ddb_index,
5129 cls_session->sid);
5130 status = QLA_ERROR;
5131 }
5132
5133 return status;
5134 }
5135
5136 static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha)
5137 {
5138 iscsi_host_for_each_session(ha->host, qla4xxx_relogin_devices);
5139 }
5140
5141 static void qla4xxx_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)
5142 {
5143 uint16_t relogin_timer;
5144 struct iscsi_session *sess;
5145 struct ddb_entry *ddb_entry;
5146 struct scsi_qla_host *ha;
5147
5148 sess = cls_sess->dd_data;
5149 ddb_entry = sess->dd_data;
5150 ha = ddb_entry->ha;
5151
5152 relogin_timer = max(ddb_entry->default_relogin_timeout,
5153 (uint16_t)RELOGIN_TOV);
5154 atomic_set(&ddb_entry->relogin_timer, relogin_timer);
5155
5156 DEBUG2(ql4_printk(KERN_INFO, ha,
5157 "scsi%ld: Relogin index [%d]. TOV=%d\n", ha->host_no,
5158 ddb_entry->fw_ddb_index, relogin_timer));
5159
5160 qla4xxx_login_flash_ddb(cls_sess);
5161 }
5162
5163 static void qla4xxx_dpc_relogin(struct iscsi_cls_session *cls_sess)
5164 {
5165 struct iscsi_session *sess;
5166 struct ddb_entry *ddb_entry;
5167 struct scsi_qla_host *ha;
5168
5169 sess = cls_sess->dd_data;
5170 ddb_entry = sess->dd_data;
5171 ha = ddb_entry->ha;
5172
5173 if (!(ddb_entry->ddb_type == FLASH_DDB))
5174 return;
5175
5176 if (test_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags))
5177 return;
5178
5179 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags) &&
5180 !iscsi_is_session_online(cls_sess)) {
5181 DEBUG2(ql4_printk(KERN_INFO, ha,
5182 "relogin issued\n"));
5183 qla4xxx_relogin_flash_ddb(cls_sess);
5184 }
5185 }
5186
5187 void qla4xxx_wake_dpc(struct scsi_qla_host *ha)
5188 {
5189 if (ha->dpc_thread)
5190 queue_work(ha->dpc_thread, &ha->dpc_work);
5191 }
5192
5193 static struct qla4_work_evt *
5194 qla4xxx_alloc_work(struct scsi_qla_host *ha, uint32_t data_size,
5195 enum qla4_work_type type)
5196 {
5197 struct qla4_work_evt *e;
5198 uint32_t size = sizeof(struct qla4_work_evt) + data_size;
5199
5200 e = kzalloc(size, GFP_ATOMIC);
5201 if (!e)
5202 return NULL;
5203
5204 INIT_LIST_HEAD(&e->list);
5205 e->type = type;
5206 return e;
5207 }
5208
5209 static void qla4xxx_post_work(struct scsi_qla_host *ha,
5210 struct qla4_work_evt *e)
5211 {
5212 unsigned long flags;
5213
5214 spin_lock_irqsave(&ha->work_lock, flags);
5215 list_add_tail(&e->list, &ha->work_list);
5216 spin_unlock_irqrestore(&ha->work_lock, flags);
5217 qla4xxx_wake_dpc(ha);
5218 }
5219
5220 int qla4xxx_post_aen_work(struct scsi_qla_host *ha,
5221 enum iscsi_host_event_code aen_code,
5222 uint32_t data_size, uint8_t *data)
5223 {
5224 struct qla4_work_evt *e;
5225
5226 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_AEN);
5227 if (!e)
5228 return QLA_ERROR;
5229
5230 e->u.aen.code = aen_code;
5231 e->u.aen.data_size = data_size;
5232 memcpy(e->u.aen.data, data, data_size);
5233
5234 qla4xxx_post_work(ha, e);
5235
5236 return QLA_SUCCESS;
5237 }
5238
5239 int qla4xxx_post_ping_evt_work(struct scsi_qla_host *ha,
5240 uint32_t status, uint32_t pid,
5241 uint32_t data_size, uint8_t *data)
5242 {
5243 struct qla4_work_evt *e;
5244
5245 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_PING_STATUS);
5246 if (!e)
5247 return QLA_ERROR;
5248
5249 e->u.ping.status = status;
5250 e->u.ping.pid = pid;
5251 e->u.ping.data_size = data_size;
5252 memcpy(e->u.ping.data, data, data_size);
5253
5254 qla4xxx_post_work(ha, e);
5255
5256 return QLA_SUCCESS;
5257 }
5258
5259 static void qla4xxx_do_work(struct scsi_qla_host *ha)
5260 {
5261 struct qla4_work_evt *e, *tmp;
5262 unsigned long flags;
5263 LIST_HEAD(work);
5264
5265 spin_lock_irqsave(&ha->work_lock, flags);
5266 list_splice_init(&ha->work_list, &work);
5267 spin_unlock_irqrestore(&ha->work_lock, flags);
5268
5269 list_for_each_entry_safe(e, tmp, &work, list) {
5270 list_del_init(&e->list);
5271
5272 switch (e->type) {
5273 case QLA4_EVENT_AEN:
5274 iscsi_post_host_event(ha->host_no,
5275 &qla4xxx_iscsi_transport,
5276 e->u.aen.code,
5277 e->u.aen.data_size,
5278 e->u.aen.data);
5279 break;
5280 case QLA4_EVENT_PING_STATUS:
5281 iscsi_ping_comp_event(ha->host_no,
5282 &qla4xxx_iscsi_transport,
5283 e->u.ping.status,
5284 e->u.ping.pid,
5285 e->u.ping.data_size,
5286 e->u.ping.data);
5287 break;
5288 default:
5289 ql4_printk(KERN_WARNING, ha, "event type: 0x%x not "
5290 "supported", e->type);
5291 }
5292 kfree(e);
5293 }
5294 }
5295
5296 /**
5297 * qla4xxx_do_dpc - dpc routine
5298 * @work: Context to obtain pointer to host adapter structure.
5299 *
5300 * This routine is a task that is schedule by the interrupt handler
5301 * to perform the background processing for interrupts. We put it
5302 * on a task queue that is consumed whenever the scheduler runs; that's
5303 * so you can do anything (i.e. put the process to sleep etc). In fact,
5304 * the mid-level tries to sleep when it reaches the driver threshold
5305 * "host->can_queue". This can cause a panic if we were in our interrupt code.
5306 **/
5307 static void qla4xxx_do_dpc(struct work_struct *work)
5308 {
5309 struct scsi_qla_host *ha =
5310 container_of(work, struct scsi_qla_host, dpc_work);
5311 int status = QLA_ERROR;
5312
5313 DEBUG2(ql4_printk(KERN_INFO, ha,
5314 "scsi%ld: %s: DPC handler waking up. flags = 0x%08lx, dpc_flags = 0x%08lx\n",
5315 ha->host_no, __func__, ha->flags, ha->dpc_flags));
5316
5317 /* Initialization not yet finished. Don't do anything yet. */
5318 if (!test_bit(AF_INIT_DONE, &ha->flags))
5319 return;
5320
5321 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
5322 DEBUG2(printk(KERN_INFO "scsi%ld: %s: flags = %lx\n",
5323 ha->host_no, __func__, ha->flags));
5324 return;
5325 }
5326
5327 /* post events to application */
5328 qla4xxx_do_work(ha);
5329
5330 if (is_qla80XX(ha)) {
5331 if (test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags)) {
5332 if (is_qla8032(ha) || is_qla8042(ha)) {
5333 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
5334 __func__);
5335 /* disable pause frame for ISP83xx */
5336 qla4_83xx_disable_pause(ha);
5337 }
5338
5339 ha->isp_ops->idc_lock(ha);
5340 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
5341 QLA8XXX_DEV_FAILED);
5342 ha->isp_ops->idc_unlock(ha);
5343 ql4_printk(KERN_INFO, ha, "HW State: FAILED\n");
5344 qla4_8xxx_device_state_handler(ha);
5345 }
5346
5347 if (test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags)) {
5348 if (is_qla8042(ha)) {
5349 if (ha->idc_info.info2 &
5350 ENABLE_INTERNAL_LOOPBACK) {
5351 ql4_printk(KERN_INFO, ha, "%s: Disabling ACB\n",
5352 __func__);
5353 status = qla4_84xx_config_acb(ha,
5354 ACB_CONFIG_DISABLE);
5355 if (status != QLA_SUCCESS) {
5356 ql4_printk(KERN_INFO, ha, "%s: ACB config failed\n",
5357 __func__);
5358 }
5359 }
5360 }
5361 qla4_83xx_post_idc_ack(ha);
5362 clear_bit(DPC_POST_IDC_ACK, &ha->dpc_flags);
5363 }
5364
5365 if (is_qla8042(ha) &&
5366 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags)) {
5367 ql4_printk(KERN_INFO, ha, "%s: Restoring ACB\n",
5368 __func__);
5369 if (qla4_84xx_config_acb(ha, ACB_CONFIG_SET) !=
5370 QLA_SUCCESS) {
5371 ql4_printk(KERN_INFO, ha, "%s: ACB config failed ",
5372 __func__);
5373 }
5374 clear_bit(DPC_RESTORE_ACB, &ha->dpc_flags);
5375 }
5376
5377 if (test_and_clear_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) {
5378 qla4_8xxx_need_qsnt_handler(ha);
5379 }
5380 }
5381
5382 if (!test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) &&
5383 (test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
5384 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
5385 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))) {
5386 if ((is_qla8022(ha) && ql4xdontresethba) ||
5387 ((is_qla8032(ha) || is_qla8042(ha)) &&
5388 qla4_83xx_idc_dontreset(ha))) {
5389 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n",
5390 ha->host_no, __func__));
5391 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
5392 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags);
5393 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
5394 goto dpc_post_reset_ha;
5395 }
5396 if (test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) ||
5397 test_bit(DPC_RESET_HA, &ha->dpc_flags))
5398 qla4xxx_recover_adapter(ha);
5399
5400 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
5401 uint8_t wait_time = RESET_INTR_TOV;
5402
5403 while ((readw(&ha->reg->ctrl_status) &
5404 (CSR_SOFT_RESET | CSR_FORCE_SOFT_RESET)) != 0) {
5405 if (--wait_time == 0)
5406 break;
5407 msleep(1000);
5408 }
5409 if (wait_time == 0)
5410 DEBUG2(printk("scsi%ld: %s: SR|FSR "
5411 "bit not cleared-- resetting\n",
5412 ha->host_no, __func__));
5413 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
5414 if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS) {
5415 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
5416 status = qla4xxx_recover_adapter(ha);
5417 }
5418 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags);
5419 if (status == QLA_SUCCESS)
5420 ha->isp_ops->enable_intrs(ha);
5421 }
5422 }
5423
5424 dpc_post_reset_ha:
5425 /* ---- process AEN? --- */
5426 if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags))
5427 qla4xxx_process_aen(ha, PROCESS_ALL_AENS);
5428
5429 /* ---- Get DHCP IP Address? --- */
5430 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags))
5431 qla4xxx_get_dhcp_ip_address(ha);
5432
5433 /* ---- relogin device? --- */
5434 if (adapter_up(ha) &&
5435 test_and_clear_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags)) {
5436 iscsi_host_for_each_session(ha->host, qla4xxx_dpc_relogin);
5437 }
5438
5439 /* ---- link change? --- */
5440 if (!test_bit(AF_LOOPBACK, &ha->flags) &&
5441 test_and_clear_bit(DPC_LINK_CHANGED, &ha->dpc_flags)) {
5442 if (!test_bit(AF_LINK_UP, &ha->flags)) {
5443 /* ---- link down? --- */
5444 qla4xxx_mark_all_devices_missing(ha);
5445 } else {
5446 /* ---- link up? --- *
5447 * F/W will auto login to all devices ONLY ONCE after
5448 * link up during driver initialization and runtime
5449 * fatal error recovery. Therefore, the driver must
5450 * manually relogin to devices when recovering from
5451 * connection failures, logouts, expired KATO, etc. */
5452 if (test_and_clear_bit(AF_BUILD_DDB_LIST, &ha->flags)) {
5453 qla4xxx_build_ddb_list(ha, ha->is_reset);
5454 iscsi_host_for_each_session(ha->host,
5455 qla4xxx_login_flash_ddb);
5456 } else
5457 qla4xxx_relogin_all_devices(ha);
5458 }
5459 }
5460 if (test_and_clear_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags)) {
5461 if (qla4xxx_sysfs_ddb_export(ha))
5462 ql4_printk(KERN_ERR, ha, "%s: Error exporting ddb to sysfs\n",
5463 __func__);
5464 }
5465 }
5466
5467 /**
5468 * qla4xxx_free_adapter - release the adapter
5469 * @ha: pointer to adapter structure
5470 **/
5471 static void qla4xxx_free_adapter(struct scsi_qla_host *ha)
5472 {
5473 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
5474
5475 /* Turn-off interrupts on the card. */
5476 ha->isp_ops->disable_intrs(ha);
5477
5478 if (is_qla40XX(ha)) {
5479 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR),
5480 &ha->reg->ctrl_status);
5481 readl(&ha->reg->ctrl_status);
5482 } else if (is_qla8022(ha)) {
5483 writel(0, &ha->qla4_82xx_reg->host_int);
5484 readl(&ha->qla4_82xx_reg->host_int);
5485 } else if (is_qla8032(ha) || is_qla8042(ha)) {
5486 writel(0, &ha->qla4_83xx_reg->risc_intr);
5487 readl(&ha->qla4_83xx_reg->risc_intr);
5488 }
5489
5490 /* Remove timer thread, if present */
5491 if (ha->timer_active)
5492 qla4xxx_stop_timer(ha);
5493
5494 /* Kill the kernel thread for this host */
5495 if (ha->dpc_thread)
5496 destroy_workqueue(ha->dpc_thread);
5497
5498 /* Kill the kernel thread for this host */
5499 if (ha->task_wq)
5500 destroy_workqueue(ha->task_wq);
5501
5502 /* Put firmware in known state */
5503 ha->isp_ops->reset_firmware(ha);
5504
5505 if (is_qla80XX(ha)) {
5506 ha->isp_ops->idc_lock(ha);
5507 qla4_8xxx_clear_drv_active(ha);
5508 ha->isp_ops->idc_unlock(ha);
5509 }
5510
5511 /* Detach interrupts */
5512 qla4xxx_free_irqs(ha);
5513
5514 /* free extra memory */
5515 qla4xxx_mem_free(ha);
5516 }
5517
5518 int qla4_8xxx_iospace_config(struct scsi_qla_host *ha)
5519 {
5520 int status = 0;
5521 unsigned long mem_base, mem_len;
5522 struct pci_dev *pdev = ha->pdev;
5523
5524 status = pci_request_regions(pdev, DRIVER_NAME);
5525 if (status) {
5526 printk(KERN_WARNING
5527 "scsi(%ld) Failed to reserve PIO regions (%s) "
5528 "status=%d\n", ha->host_no, pci_name(pdev), status);
5529 goto iospace_error_exit;
5530 }
5531
5532 DEBUG2(printk(KERN_INFO "%s: revision-id=%d\n",
5533 __func__, pdev->revision));
5534 ha->revision_id = pdev->revision;
5535
5536 /* remap phys address */
5537 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
5538 mem_len = pci_resource_len(pdev, 0);
5539 DEBUG2(printk(KERN_INFO "%s: ioremap from %lx a size of %lx\n",
5540 __func__, mem_base, mem_len));
5541
5542 /* mapping of pcibase pointer */
5543 ha->nx_pcibase = (unsigned long)ioremap(mem_base, mem_len);
5544 if (!ha->nx_pcibase) {
5545 printk(KERN_ERR
5546 "cannot remap MMIO (%s), aborting\n", pci_name(pdev));
5547 pci_release_regions(ha->pdev);
5548 goto iospace_error_exit;
5549 }
5550
5551 /* Mapping of IO base pointer, door bell read and write pointer */
5552
5553 /* mapping of IO base pointer */
5554 if (is_qla8022(ha)) {
5555 ha->qla4_82xx_reg = (struct device_reg_82xx __iomem *)
5556 ((uint8_t *)ha->nx_pcibase + 0xbc000 +
5557 (ha->pdev->devfn << 11));
5558 ha->nx_db_wr_ptr = (ha->pdev->devfn == 4 ? QLA82XX_CAM_RAM_DB1 :
5559 QLA82XX_CAM_RAM_DB2);
5560 } else if (is_qla8032(ha) || is_qla8042(ha)) {
5561 ha->qla4_83xx_reg = (struct device_reg_83xx __iomem *)
5562 ((uint8_t *)ha->nx_pcibase);
5563 }
5564
5565 return 0;
5566 iospace_error_exit:
5567 return -ENOMEM;
5568 }
5569
5570 /***
5571 * qla4xxx_iospace_config - maps registers
5572 * @ha: pointer to adapter structure
5573 *
5574 * This routines maps HBA's registers from the pci address space
5575 * into the kernel virtual address space for memory mapped i/o.
5576 **/
5577 int qla4xxx_iospace_config(struct scsi_qla_host *ha)
5578 {
5579 unsigned long pio, pio_len, pio_flags;
5580 unsigned long mmio, mmio_len, mmio_flags;
5581
5582 pio = pci_resource_start(ha->pdev, 0);
5583 pio_len = pci_resource_len(ha->pdev, 0);
5584 pio_flags = pci_resource_flags(ha->pdev, 0);
5585 if (pio_flags & IORESOURCE_IO) {
5586 if (pio_len < MIN_IOBASE_LEN) {
5587 ql4_printk(KERN_WARNING, ha,
5588 "Invalid PCI I/O region size\n");
5589 pio = 0;
5590 }
5591 } else {
5592 ql4_printk(KERN_WARNING, ha, "region #0 not a PIO resource\n");
5593 pio = 0;
5594 }
5595
5596 /* Use MMIO operations for all accesses. */
5597 mmio = pci_resource_start(ha->pdev, 1);
5598 mmio_len = pci_resource_len(ha->pdev, 1);
5599 mmio_flags = pci_resource_flags(ha->pdev, 1);
5600
5601 if (!(mmio_flags & IORESOURCE_MEM)) {
5602 ql4_printk(KERN_ERR, ha,
5603 "region #0 not an MMIO resource, aborting\n");
5604
5605 goto iospace_error_exit;
5606 }
5607
5608 if (mmio_len < MIN_IOBASE_LEN) {
5609 ql4_printk(KERN_ERR, ha,
5610 "Invalid PCI mem region size, aborting\n");
5611 goto iospace_error_exit;
5612 }
5613
5614 if (pci_request_regions(ha->pdev, DRIVER_NAME)) {
5615 ql4_printk(KERN_WARNING, ha,
5616 "Failed to reserve PIO/MMIO regions\n");
5617
5618 goto iospace_error_exit;
5619 }
5620
5621 ha->pio_address = pio;
5622 ha->pio_length = pio_len;
5623 ha->reg = ioremap(mmio, MIN_IOBASE_LEN);
5624 if (!ha->reg) {
5625 ql4_printk(KERN_ERR, ha,
5626 "cannot remap MMIO, aborting\n");
5627
5628 goto iospace_error_exit;
5629 }
5630
5631 return 0;
5632
5633 iospace_error_exit:
5634 return -ENOMEM;
5635 }
5636
5637 static struct isp_operations qla4xxx_isp_ops = {
5638 .iospace_config = qla4xxx_iospace_config,
5639 .pci_config = qla4xxx_pci_config,
5640 .disable_intrs = qla4xxx_disable_intrs,
5641 .enable_intrs = qla4xxx_enable_intrs,
5642 .start_firmware = qla4xxx_start_firmware,
5643 .intr_handler = qla4xxx_intr_handler,
5644 .interrupt_service_routine = qla4xxx_interrupt_service_routine,
5645 .reset_chip = qla4xxx_soft_reset,
5646 .reset_firmware = qla4xxx_hw_reset,
5647 .queue_iocb = qla4xxx_queue_iocb,
5648 .complete_iocb = qla4xxx_complete_iocb,
5649 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out,
5650 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in,
5651 .get_sys_info = qla4xxx_get_sys_info,
5652 .queue_mailbox_command = qla4xxx_queue_mbox_cmd,
5653 .process_mailbox_interrupt = qla4xxx_process_mbox_intr,
5654 };
5655
5656 static struct isp_operations qla4_82xx_isp_ops = {
5657 .iospace_config = qla4_8xxx_iospace_config,
5658 .pci_config = qla4_8xxx_pci_config,
5659 .disable_intrs = qla4_82xx_disable_intrs,
5660 .enable_intrs = qla4_82xx_enable_intrs,
5661 .start_firmware = qla4_8xxx_load_risc,
5662 .restart_firmware = qla4_82xx_try_start_fw,
5663 .intr_handler = qla4_82xx_intr_handler,
5664 .interrupt_service_routine = qla4_82xx_interrupt_service_routine,
5665 .need_reset = qla4_8xxx_need_reset,
5666 .reset_chip = qla4_82xx_isp_reset,
5667 .reset_firmware = qla4_8xxx_stop_firmware,
5668 .queue_iocb = qla4_82xx_queue_iocb,
5669 .complete_iocb = qla4_82xx_complete_iocb,
5670 .rd_shdw_req_q_out = qla4_82xx_rd_shdw_req_q_out,
5671 .rd_shdw_rsp_q_in = qla4_82xx_rd_shdw_rsp_q_in,
5672 .get_sys_info = qla4_8xxx_get_sys_info,
5673 .rd_reg_direct = qla4_82xx_rd_32,
5674 .wr_reg_direct = qla4_82xx_wr_32,
5675 .rd_reg_indirect = qla4_82xx_md_rd_32,
5676 .wr_reg_indirect = qla4_82xx_md_wr_32,
5677 .idc_lock = qla4_82xx_idc_lock,
5678 .idc_unlock = qla4_82xx_idc_unlock,
5679 .rom_lock_recovery = qla4_82xx_rom_lock_recovery,
5680 .queue_mailbox_command = qla4_82xx_queue_mbox_cmd,
5681 .process_mailbox_interrupt = qla4_82xx_process_mbox_intr,
5682 };
5683
5684 static struct isp_operations qla4_83xx_isp_ops = {
5685 .iospace_config = qla4_8xxx_iospace_config,
5686 .pci_config = qla4_8xxx_pci_config,
5687 .disable_intrs = qla4_83xx_disable_intrs,
5688 .enable_intrs = qla4_83xx_enable_intrs,
5689 .start_firmware = qla4_8xxx_load_risc,
5690 .restart_firmware = qla4_83xx_start_firmware,
5691 .intr_handler = qla4_83xx_intr_handler,
5692 .interrupt_service_routine = qla4_83xx_interrupt_service_routine,
5693 .need_reset = qla4_8xxx_need_reset,
5694 .reset_chip = qla4_83xx_isp_reset,
5695 .reset_firmware = qla4_8xxx_stop_firmware,
5696 .queue_iocb = qla4_83xx_queue_iocb,
5697 .complete_iocb = qla4_83xx_complete_iocb,
5698 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out,
5699 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in,
5700 .get_sys_info = qla4_8xxx_get_sys_info,
5701 .rd_reg_direct = qla4_83xx_rd_reg,
5702 .wr_reg_direct = qla4_83xx_wr_reg,
5703 .rd_reg_indirect = qla4_83xx_rd_reg_indirect,
5704 .wr_reg_indirect = qla4_83xx_wr_reg_indirect,
5705 .idc_lock = qla4_83xx_drv_lock,
5706 .idc_unlock = qla4_83xx_drv_unlock,
5707 .rom_lock_recovery = qla4_83xx_rom_lock_recovery,
5708 .queue_mailbox_command = qla4_83xx_queue_mbox_cmd,
5709 .process_mailbox_interrupt = qla4_83xx_process_mbox_intr,
5710 };
5711
5712 uint16_t qla4xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha)
5713 {
5714 return (uint16_t)le32_to_cpu(ha->shadow_regs->req_q_out);
5715 }
5716
5717 uint16_t qla4_82xx_rd_shdw_req_q_out(struct scsi_qla_host *ha)
5718 {
5719 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->req_q_out));
5720 }
5721
5722 uint16_t qla4xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha)
5723 {
5724 return (uint16_t)le32_to_cpu(ha->shadow_regs->rsp_q_in);
5725 }
5726
5727 uint16_t qla4_82xx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha)
5728 {
5729 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->rsp_q_in));
5730 }
5731
5732 static ssize_t qla4xxx_show_boot_eth_info(void *data, int type, char *buf)
5733 {
5734 struct scsi_qla_host *ha = data;
5735 char *str = buf;
5736 int rc;
5737
5738 switch (type) {
5739 case ISCSI_BOOT_ETH_FLAGS:
5740 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT);
5741 break;
5742 case ISCSI_BOOT_ETH_INDEX:
5743 rc = sprintf(str, "0\n");
5744 break;
5745 case ISCSI_BOOT_ETH_MAC:
5746 rc = sysfs_format_mac(str, ha->my_mac,
5747 MAC_ADDR_LEN);
5748 break;
5749 default:
5750 rc = -ENOSYS;
5751 break;
5752 }
5753 return rc;
5754 }
5755
5756 static umode_t qla4xxx_eth_get_attr_visibility(void *data, int type)
5757 {
5758 int rc;
5759
5760 switch (type) {
5761 case ISCSI_BOOT_ETH_FLAGS:
5762 case ISCSI_BOOT_ETH_MAC:
5763 case ISCSI_BOOT_ETH_INDEX:
5764 rc = S_IRUGO;
5765 break;
5766 default:
5767 rc = 0;
5768 break;
5769 }
5770 return rc;
5771 }
5772
5773 static ssize_t qla4xxx_show_boot_ini_info(void *data, int type, char *buf)
5774 {
5775 struct scsi_qla_host *ha = data;
5776 char *str = buf;
5777 int rc;
5778
5779 switch (type) {
5780 case ISCSI_BOOT_INI_INITIATOR_NAME:
5781 rc = sprintf(str, "%s\n", ha->name_string);
5782 break;
5783 default:
5784 rc = -ENOSYS;
5785 break;
5786 }
5787 return rc;
5788 }
5789
5790 static umode_t qla4xxx_ini_get_attr_visibility(void *data, int type)
5791 {
5792 int rc;
5793
5794 switch (type) {
5795 case ISCSI_BOOT_INI_INITIATOR_NAME:
5796 rc = S_IRUGO;
5797 break;
5798 default:
5799 rc = 0;
5800 break;
5801 }
5802 return rc;
5803 }
5804
5805 static ssize_t
5806 qla4xxx_show_boot_tgt_info(struct ql4_boot_session_info *boot_sess, int type,
5807 char *buf)
5808 {
5809 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0];
5810 char *str = buf;
5811 int rc;
5812
5813 switch (type) {
5814 case ISCSI_BOOT_TGT_NAME:
5815 rc = sprintf(buf, "%s\n", (char *)&boot_sess->target_name);
5816 break;
5817 case ISCSI_BOOT_TGT_IP_ADDR:
5818 if (boot_sess->conn_list[0].dest_ipaddr.ip_type == 0x1)
5819 rc = sprintf(buf, "%pI4\n",
5820 &boot_conn->dest_ipaddr.ip_address);
5821 else
5822 rc = sprintf(str, "%pI6\n",
5823 &boot_conn->dest_ipaddr.ip_address);
5824 break;
5825 case ISCSI_BOOT_TGT_PORT:
5826 rc = sprintf(str, "%d\n", boot_conn->dest_port);
5827 break;
5828 case ISCSI_BOOT_TGT_CHAP_NAME:
5829 rc = sprintf(str, "%.*s\n",
5830 boot_conn->chap.target_chap_name_length,
5831 (char *)&boot_conn->chap.target_chap_name);
5832 break;
5833 case ISCSI_BOOT_TGT_CHAP_SECRET:
5834 rc = sprintf(str, "%.*s\n",
5835 boot_conn->chap.target_secret_length,
5836 (char *)&boot_conn->chap.target_secret);
5837 break;
5838 case ISCSI_BOOT_TGT_REV_CHAP_NAME:
5839 rc = sprintf(str, "%.*s\n",
5840 boot_conn->chap.intr_chap_name_length,
5841 (char *)&boot_conn->chap.intr_chap_name);
5842 break;
5843 case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
5844 rc = sprintf(str, "%.*s\n",
5845 boot_conn->chap.intr_secret_length,
5846 (char *)&boot_conn->chap.intr_secret);
5847 break;
5848 case ISCSI_BOOT_TGT_FLAGS:
5849 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT);
5850 break;
5851 case ISCSI_BOOT_TGT_NIC_ASSOC:
5852 rc = sprintf(str, "0\n");
5853 break;
5854 default:
5855 rc = -ENOSYS;
5856 break;
5857 }
5858 return rc;
5859 }
5860
5861 static ssize_t qla4xxx_show_boot_tgt_pri_info(void *data, int type, char *buf)
5862 {
5863 struct scsi_qla_host *ha = data;
5864 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_pri_sess);
5865
5866 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf);
5867 }
5868
5869 static ssize_t qla4xxx_show_boot_tgt_sec_info(void *data, int type, char *buf)
5870 {
5871 struct scsi_qla_host *ha = data;
5872 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_sec_sess);
5873
5874 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf);
5875 }
5876
5877 static umode_t qla4xxx_tgt_get_attr_visibility(void *data, int type)
5878 {
5879 int rc;
5880
5881 switch (type) {
5882 case ISCSI_BOOT_TGT_NAME:
5883 case ISCSI_BOOT_TGT_IP_ADDR:
5884 case ISCSI_BOOT_TGT_PORT:
5885 case ISCSI_BOOT_TGT_CHAP_NAME:
5886 case ISCSI_BOOT_TGT_CHAP_SECRET:
5887 case ISCSI_BOOT_TGT_REV_CHAP_NAME:
5888 case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
5889 case ISCSI_BOOT_TGT_NIC_ASSOC:
5890 case ISCSI_BOOT_TGT_FLAGS:
5891 rc = S_IRUGO;
5892 break;
5893 default:
5894 rc = 0;
5895 break;
5896 }
5897 return rc;
5898 }
5899
5900 static void qla4xxx_boot_release(void *data)
5901 {
5902 struct scsi_qla_host *ha = data;
5903
5904 scsi_host_put(ha->host);
5905 }
5906
5907 static int get_fw_boot_info(struct scsi_qla_host *ha, uint16_t ddb_index[])
5908 {
5909 dma_addr_t buf_dma;
5910 uint32_t addr, pri_addr, sec_addr;
5911 uint32_t offset;
5912 uint16_t func_num;
5913 uint8_t val;
5914 uint8_t *buf = NULL;
5915 size_t size = 13 * sizeof(uint8_t);
5916 int ret = QLA_SUCCESS;
5917
5918 func_num = PCI_FUNC(ha->pdev->devfn);
5919
5920 ql4_printk(KERN_INFO, ha, "%s: Get FW boot info for 0x%x func %d\n",
5921 __func__, ha->pdev->device, func_num);
5922
5923 if (is_qla40XX(ha)) {
5924 if (func_num == 1) {
5925 addr = NVRAM_PORT0_BOOT_MODE;
5926 pri_addr = NVRAM_PORT0_BOOT_PRI_TGT;
5927 sec_addr = NVRAM_PORT0_BOOT_SEC_TGT;
5928 } else if (func_num == 3) {
5929 addr = NVRAM_PORT1_BOOT_MODE;
5930 pri_addr = NVRAM_PORT1_BOOT_PRI_TGT;
5931 sec_addr = NVRAM_PORT1_BOOT_SEC_TGT;
5932 } else {
5933 ret = QLA_ERROR;
5934 goto exit_boot_info;
5935 }
5936
5937 /* Check Boot Mode */
5938 val = rd_nvram_byte(ha, addr);
5939 if (!(val & 0x07)) {
5940 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Adapter boot "
5941 "options : 0x%x\n", __func__, val));
5942 ret = QLA_ERROR;
5943 goto exit_boot_info;
5944 }
5945
5946 /* get primary valid target index */
5947 val = rd_nvram_byte(ha, pri_addr);
5948 if (val & BIT_7)
5949 ddb_index[0] = (val & 0x7f);
5950
5951 /* get secondary valid target index */
5952 val = rd_nvram_byte(ha, sec_addr);
5953 if (val & BIT_7)
5954 ddb_index[1] = (val & 0x7f);
5955 goto exit_boot_info;
5956 } else if (is_qla80XX(ha)) {
5957 buf = dma_alloc_coherent(&ha->pdev->dev, size,
5958 &buf_dma, GFP_KERNEL);
5959 if (!buf) {
5960 DEBUG2(ql4_printk(KERN_ERR, ha,
5961 "%s: Unable to allocate dma buffer\n",
5962 __func__));
5963 ret = QLA_ERROR;
5964 goto exit_boot_info;
5965 }
5966
5967 if (ha->port_num == 0)
5968 offset = BOOT_PARAM_OFFSET_PORT0;
5969 else if (ha->port_num == 1)
5970 offset = BOOT_PARAM_OFFSET_PORT1;
5971 else {
5972 ret = QLA_ERROR;
5973 goto exit_boot_info_free;
5974 }
5975 addr = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_iscsi_param * 4) +
5976 offset;
5977 if (qla4xxx_get_flash(ha, buf_dma, addr,
5978 13 * sizeof(uint8_t)) != QLA_SUCCESS) {
5979 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: Get Flash"
5980 " failed\n", ha->host_no, __func__));
5981 ret = QLA_ERROR;
5982 goto exit_boot_info_free;
5983 }
5984 /* Check Boot Mode */
5985 if (!(buf[1] & 0x07)) {
5986 DEBUG2(ql4_printk(KERN_INFO, ha, "Firmware boot options"
5987 " : 0x%x\n", buf[1]));
5988 ret = QLA_ERROR;
5989 goto exit_boot_info_free;
5990 }
5991
5992 /* get primary valid target index */
5993 if (buf[2] & BIT_7)
5994 ddb_index[0] = buf[2] & 0x7f;
5995
5996 /* get secondary valid target index */
5997 if (buf[11] & BIT_7)
5998 ddb_index[1] = buf[11] & 0x7f;
5999 } else {
6000 ret = QLA_ERROR;
6001 goto exit_boot_info;
6002 }
6003
6004 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary target ID %d, Secondary"
6005 " target ID %d\n", __func__, ddb_index[0],
6006 ddb_index[1]));
6007
6008 exit_boot_info_free:
6009 dma_free_coherent(&ha->pdev->dev, size, buf, buf_dma);
6010 exit_boot_info:
6011 ha->pri_ddb_idx = ddb_index[0];
6012 ha->sec_ddb_idx = ddb_index[1];
6013 return ret;
6014 }
6015
6016 /**
6017 * qla4xxx_get_bidi_chap - Get a BIDI CHAP user and password
6018 * @ha: pointer to adapter structure
6019 * @username: CHAP username to be returned
6020 * @password: CHAP password to be returned
6021 *
6022 * If a boot entry has BIDI CHAP enabled then we need to set the BIDI CHAP
6023 * user and password in the sysfs entry in /sys/firmware/iscsi_boot#/.
6024 * So from the CHAP cache find the first BIDI CHAP entry and set it
6025 * to the boot record in sysfs.
6026 **/
6027 static int qla4xxx_get_bidi_chap(struct scsi_qla_host *ha, char *username,
6028 char *password)
6029 {
6030 int i, ret = -EINVAL;
6031 int max_chap_entries = 0;
6032 struct ql4_chap_table *chap_table;
6033
6034 if (is_qla80XX(ha))
6035 max_chap_entries = (ha->hw.flt_chap_size / 2) /
6036 sizeof(struct ql4_chap_table);
6037 else
6038 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
6039
6040 if (!ha->chap_list) {
6041 ql4_printk(KERN_ERR, ha, "Do not have CHAP table cache\n");
6042 return ret;
6043 }
6044
6045 mutex_lock(&ha->chap_sem);
6046 for (i = 0; i < max_chap_entries; i++) {
6047 chap_table = (struct ql4_chap_table *)ha->chap_list + i;
6048 if (chap_table->cookie !=
6049 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) {
6050 continue;
6051 }
6052
6053 if (chap_table->flags & BIT_7) /* local */
6054 continue;
6055
6056 if (!(chap_table->flags & BIT_6)) /* Not BIDI */
6057 continue;
6058
6059 strlcpy(password, chap_table->secret, QL4_CHAP_MAX_SECRET_LEN);
6060 strlcpy(username, chap_table->name, QL4_CHAP_MAX_NAME_LEN);
6061 ret = 0;
6062 break;
6063 }
6064 mutex_unlock(&ha->chap_sem);
6065
6066 return ret;
6067 }
6068
6069
6070 static int qla4xxx_get_boot_target(struct scsi_qla_host *ha,
6071 struct ql4_boot_session_info *boot_sess,
6072 uint16_t ddb_index)
6073 {
6074 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0];
6075 struct dev_db_entry *fw_ddb_entry;
6076 dma_addr_t fw_ddb_entry_dma;
6077 uint16_t idx;
6078 uint16_t options;
6079 int ret = QLA_SUCCESS;
6080
6081 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
6082 &fw_ddb_entry_dma, GFP_KERNEL);
6083 if (!fw_ddb_entry) {
6084 DEBUG2(ql4_printk(KERN_ERR, ha,
6085 "%s: Unable to allocate dma buffer.\n",
6086 __func__));
6087 ret = QLA_ERROR;
6088 return ret;
6089 }
6090
6091 if (qla4xxx_bootdb_by_index(ha, fw_ddb_entry,
6092 fw_ddb_entry_dma, ddb_index)) {
6093 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: No Flash DDB found at "
6094 "index [%d]\n", __func__, ddb_index));
6095 ret = QLA_ERROR;
6096 goto exit_boot_target;
6097 }
6098
6099 /* Update target name and IP from DDB */
6100 memcpy(boot_sess->target_name, fw_ddb_entry->iscsi_name,
6101 min(sizeof(boot_sess->target_name),
6102 sizeof(fw_ddb_entry->iscsi_name)));
6103
6104 options = le16_to_cpu(fw_ddb_entry->options);
6105 if (options & DDB_OPT_IPV6_DEVICE) {
6106 memcpy(&boot_conn->dest_ipaddr.ip_address,
6107 &fw_ddb_entry->ip_addr[0], IPv6_ADDR_LEN);
6108 } else {
6109 boot_conn->dest_ipaddr.ip_type = 0x1;
6110 memcpy(&boot_conn->dest_ipaddr.ip_address,
6111 &fw_ddb_entry->ip_addr[0], IP_ADDR_LEN);
6112 }
6113
6114 boot_conn->dest_port = le16_to_cpu(fw_ddb_entry->port);
6115
6116 /* update chap information */
6117 idx = __le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
6118
6119 if (BIT_7 & le16_to_cpu(fw_ddb_entry->iscsi_options)) {
6120
6121 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting chap\n"));
6122
6123 ret = qla4xxx_get_chap(ha, (char *)&boot_conn->chap.
6124 target_chap_name,
6125 (char *)&boot_conn->chap.target_secret,
6126 idx);
6127 if (ret) {
6128 ql4_printk(KERN_ERR, ha, "Failed to set chap\n");
6129 ret = QLA_ERROR;
6130 goto exit_boot_target;
6131 }
6132
6133 boot_conn->chap.target_chap_name_length = QL4_CHAP_MAX_NAME_LEN;
6134 boot_conn->chap.target_secret_length = QL4_CHAP_MAX_SECRET_LEN;
6135 }
6136
6137 if (BIT_4 & le16_to_cpu(fw_ddb_entry->iscsi_options)) {
6138
6139 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting BIDI chap\n"));
6140
6141 ret = qla4xxx_get_bidi_chap(ha,
6142 (char *)&boot_conn->chap.intr_chap_name,
6143 (char *)&boot_conn->chap.intr_secret);
6144
6145 if (ret) {
6146 ql4_printk(KERN_ERR, ha, "Failed to set BIDI chap\n");
6147 ret = QLA_ERROR;
6148 goto exit_boot_target;
6149 }
6150
6151 boot_conn->chap.intr_chap_name_length = QL4_CHAP_MAX_NAME_LEN;
6152 boot_conn->chap.intr_secret_length = QL4_CHAP_MAX_SECRET_LEN;
6153 }
6154
6155 exit_boot_target:
6156 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
6157 fw_ddb_entry, fw_ddb_entry_dma);
6158 return ret;
6159 }
6160
6161 static int qla4xxx_get_boot_info(struct scsi_qla_host *ha)
6162 {
6163 uint16_t ddb_index[2];
6164 int ret = QLA_ERROR;
6165 int rval;
6166
6167 memset(ddb_index, 0, sizeof(ddb_index));
6168 ddb_index[0] = 0xffff;
6169 ddb_index[1] = 0xffff;
6170 ret = get_fw_boot_info(ha, ddb_index);
6171 if (ret != QLA_SUCCESS) {
6172 DEBUG2(ql4_printk(KERN_INFO, ha,
6173 "%s: No boot target configured.\n", __func__));
6174 return ret;
6175 }
6176
6177 if (ql4xdisablesysfsboot)
6178 return QLA_SUCCESS;
6179
6180 if (ddb_index[0] == 0xffff)
6181 goto sec_target;
6182
6183 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_pri_sess),
6184 ddb_index[0]);
6185 if (rval != QLA_SUCCESS) {
6186 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary boot target not "
6187 "configured\n", __func__));
6188 } else
6189 ret = QLA_SUCCESS;
6190
6191 sec_target:
6192 if (ddb_index[1] == 0xffff)
6193 goto exit_get_boot_info;
6194
6195 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_sec_sess),
6196 ddb_index[1]);
6197 if (rval != QLA_SUCCESS) {
6198 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Secondary boot target not"
6199 " configured\n", __func__));
6200 } else
6201 ret = QLA_SUCCESS;
6202
6203 exit_get_boot_info:
6204 return ret;
6205 }
6206
6207 static int qla4xxx_setup_boot_info(struct scsi_qla_host *ha)
6208 {
6209 struct iscsi_boot_kobj *boot_kobj;
6210
6211 if (qla4xxx_get_boot_info(ha) != QLA_SUCCESS)
6212 return QLA_ERROR;
6213
6214 if (ql4xdisablesysfsboot) {
6215 ql4_printk(KERN_INFO, ha,
6216 "%s: syfsboot disabled - driver will trigger login "
6217 "and publish session for discovery .\n", __func__);
6218 return QLA_SUCCESS;
6219 }
6220
6221
6222 ha->boot_kset = iscsi_boot_create_host_kset(ha->host->host_no);
6223 if (!ha->boot_kset)
6224 goto kset_free;
6225
6226 if (!scsi_host_get(ha->host))
6227 goto kset_free;
6228 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 0, ha,
6229 qla4xxx_show_boot_tgt_pri_info,
6230 qla4xxx_tgt_get_attr_visibility,
6231 qla4xxx_boot_release);
6232 if (!boot_kobj)
6233 goto put_host;
6234
6235 if (!scsi_host_get(ha->host))
6236 goto kset_free;
6237 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 1, ha,
6238 qla4xxx_show_boot_tgt_sec_info,
6239 qla4xxx_tgt_get_attr_visibility,
6240 qla4xxx_boot_release);
6241 if (!boot_kobj)
6242 goto put_host;
6243
6244 if (!scsi_host_get(ha->host))
6245 goto kset_free;
6246 boot_kobj = iscsi_boot_create_initiator(ha->boot_kset, 0, ha,
6247 qla4xxx_show_boot_ini_info,
6248 qla4xxx_ini_get_attr_visibility,
6249 qla4xxx_boot_release);
6250 if (!boot_kobj)
6251 goto put_host;
6252
6253 if (!scsi_host_get(ha->host))
6254 goto kset_free;
6255 boot_kobj = iscsi_boot_create_ethernet(ha->boot_kset, 0, ha,
6256 qla4xxx_show_boot_eth_info,
6257 qla4xxx_eth_get_attr_visibility,
6258 qla4xxx_boot_release);
6259 if (!boot_kobj)
6260 goto put_host;
6261
6262 return QLA_SUCCESS;
6263
6264 put_host:
6265 scsi_host_put(ha->host);
6266 kset_free:
6267 iscsi_boot_destroy_kset(ha->boot_kset);
6268 return -ENOMEM;
6269 }
6270
6271
6272 static void qla4xxx_get_param_ddb(struct ddb_entry *ddb_entry,
6273 struct ql4_tuple_ddb *tddb)
6274 {
6275 struct iscsi_cls_session *cls_sess;
6276 struct iscsi_cls_conn *cls_conn;
6277 struct iscsi_session *sess;
6278 struct iscsi_conn *conn;
6279
6280 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
6281 cls_sess = ddb_entry->sess;
6282 sess = cls_sess->dd_data;
6283 cls_conn = ddb_entry->conn;
6284 conn = cls_conn->dd_data;
6285
6286 tddb->tpgt = sess->tpgt;
6287 tddb->port = conn->persistent_port;
6288 strlcpy(tddb->iscsi_name, sess->targetname, ISCSI_NAME_SIZE);
6289 strlcpy(tddb->ip_addr, conn->persistent_address, DDB_IPADDR_LEN);
6290 }
6291
6292 static void qla4xxx_convert_param_ddb(struct dev_db_entry *fw_ddb_entry,
6293 struct ql4_tuple_ddb *tddb,
6294 uint8_t *flash_isid)
6295 {
6296 uint16_t options = 0;
6297
6298 tddb->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
6299 memcpy(&tddb->iscsi_name[0], &fw_ddb_entry->iscsi_name[0],
6300 min(sizeof(tddb->iscsi_name), sizeof(fw_ddb_entry->iscsi_name)));
6301
6302 options = le16_to_cpu(fw_ddb_entry->options);
6303 if (options & DDB_OPT_IPV6_DEVICE)
6304 sprintf(tddb->ip_addr, "%pI6", fw_ddb_entry->ip_addr);
6305 else
6306 sprintf(tddb->ip_addr, "%pI4", fw_ddb_entry->ip_addr);
6307
6308 tddb->port = le16_to_cpu(fw_ddb_entry->port);
6309
6310 if (flash_isid == NULL)
6311 memcpy(&tddb->isid[0], &fw_ddb_entry->isid[0],
6312 sizeof(tddb->isid));
6313 else
6314 memcpy(&tddb->isid[0], &flash_isid[0], sizeof(tddb->isid));
6315 }
6316
6317 static int qla4xxx_compare_tuple_ddb(struct scsi_qla_host *ha,
6318 struct ql4_tuple_ddb *old_tddb,
6319 struct ql4_tuple_ddb *new_tddb,
6320 uint8_t is_isid_compare)
6321 {
6322 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name))
6323 return QLA_ERROR;
6324
6325 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr))
6326 return QLA_ERROR;
6327
6328 if (old_tddb->port != new_tddb->port)
6329 return QLA_ERROR;
6330
6331 /* For multi sessions, driver generates the ISID, so do not compare
6332 * ISID in reset path since it would be a comparison between the
6333 * driver generated ISID and firmware generated ISID. This could
6334 * lead to adding duplicated DDBs in the list as driver generated
6335 * ISID would not match firmware generated ISID.
6336 */
6337 if (is_isid_compare) {
6338 DEBUG2(ql4_printk(KERN_INFO, ha,
6339 "%s: old ISID [%pmR] New ISID [%pmR]\n",
6340 __func__, old_tddb->isid, new_tddb->isid));
6341
6342 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0],
6343 sizeof(old_tddb->isid)))
6344 return QLA_ERROR;
6345 }
6346
6347 DEBUG2(ql4_printk(KERN_INFO, ha,
6348 "Match Found, fw[%d,%d,%s,%s], [%d,%d,%s,%s]",
6349 old_tddb->port, old_tddb->tpgt, old_tddb->ip_addr,
6350 old_tddb->iscsi_name, new_tddb->port, new_tddb->tpgt,
6351 new_tddb->ip_addr, new_tddb->iscsi_name));
6352
6353 return QLA_SUCCESS;
6354 }
6355
6356 static int qla4xxx_is_session_exists(struct scsi_qla_host *ha,
6357 struct dev_db_entry *fw_ddb_entry,
6358 uint32_t *index)
6359 {
6360 struct ddb_entry *ddb_entry;
6361 struct ql4_tuple_ddb *fw_tddb = NULL;
6362 struct ql4_tuple_ddb *tmp_tddb = NULL;
6363 int idx;
6364 int ret = QLA_ERROR;
6365
6366 fw_tddb = vzalloc(sizeof(*fw_tddb));
6367 if (!fw_tddb) {
6368 DEBUG2(ql4_printk(KERN_WARNING, ha,
6369 "Memory Allocation failed.\n"));
6370 ret = QLA_SUCCESS;
6371 goto exit_check;
6372 }
6373
6374 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
6375 if (!tmp_tddb) {
6376 DEBUG2(ql4_printk(KERN_WARNING, ha,
6377 "Memory Allocation failed.\n"));
6378 ret = QLA_SUCCESS;
6379 goto exit_check;
6380 }
6381
6382 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL);
6383
6384 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
6385 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
6386 if (ddb_entry == NULL)
6387 continue;
6388
6389 qla4xxx_get_param_ddb(ddb_entry, tmp_tddb);
6390 if (!qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, false)) {
6391 ret = QLA_SUCCESS; /* found */
6392 if (index != NULL)
6393 *index = idx;
6394 goto exit_check;
6395 }
6396 }
6397
6398 exit_check:
6399 if (fw_tddb)
6400 vfree(fw_tddb);
6401 if (tmp_tddb)
6402 vfree(tmp_tddb);
6403 return ret;
6404 }
6405
6406 /**
6407 * qla4xxx_check_existing_isid - check if target with same isid exist
6408 * in target list
6409 * @list_nt: list of target
6410 * @isid: isid to check
6411 *
6412 * This routine return QLA_SUCCESS if target with same isid exist
6413 **/
6414 static int qla4xxx_check_existing_isid(struct list_head *list_nt, uint8_t *isid)
6415 {
6416 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp;
6417 struct dev_db_entry *fw_ddb_entry;
6418
6419 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
6420 fw_ddb_entry = &nt_ddb_idx->fw_ddb;
6421
6422 if (memcmp(&fw_ddb_entry->isid[0], &isid[0],
6423 sizeof(nt_ddb_idx->fw_ddb.isid)) == 0) {
6424 return QLA_SUCCESS;
6425 }
6426 }
6427 return QLA_ERROR;
6428 }
6429
6430 /**
6431 * qla4xxx_update_isid - compare ddbs and updated isid
6432 * @ha: Pointer to host adapter structure.
6433 * @list_nt: list of nt target
6434 * @fw_ddb_entry: firmware ddb entry
6435 *
6436 * This routine update isid if ddbs have same iqn, same isid and
6437 * different IP addr.
6438 * Return QLA_SUCCESS if isid is updated.
6439 **/
6440 static int qla4xxx_update_isid(struct scsi_qla_host *ha,
6441 struct list_head *list_nt,
6442 struct dev_db_entry *fw_ddb_entry)
6443 {
6444 uint8_t base_value, i;
6445
6446 base_value = fw_ddb_entry->isid[1] & 0x1f;
6447 for (i = 0; i < 8; i++) {
6448 fw_ddb_entry->isid[1] = (base_value | (i << 5));
6449 if (qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid))
6450 break;
6451 }
6452
6453 if (!qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid))
6454 return QLA_ERROR;
6455
6456 return QLA_SUCCESS;
6457 }
6458
6459 /**
6460 * qla4xxx_should_update_isid - check if isid need to update
6461 * @ha: Pointer to host adapter structure.
6462 * @old_tddb: ddb tuple
6463 * @new_tddb: ddb tuple
6464 *
6465 * Return QLA_SUCCESS if different IP, different PORT, same iqn,
6466 * same isid
6467 **/
6468 static int qla4xxx_should_update_isid(struct scsi_qla_host *ha,
6469 struct ql4_tuple_ddb *old_tddb,
6470 struct ql4_tuple_ddb *new_tddb)
6471 {
6472 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr) == 0) {
6473 /* Same ip */
6474 if (old_tddb->port == new_tddb->port)
6475 return QLA_ERROR;
6476 }
6477
6478 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name))
6479 /* different iqn */
6480 return QLA_ERROR;
6481
6482 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0],
6483 sizeof(old_tddb->isid)))
6484 /* different isid */
6485 return QLA_ERROR;
6486
6487 return QLA_SUCCESS;
6488 }
6489
6490 /**
6491 * qla4xxx_is_flash_ddb_exists - check if fw_ddb_entry already exists in list_nt
6492 * @ha: Pointer to host adapter structure.
6493 * @list_nt: list of nt target.
6494 * @fw_ddb_entry: firmware ddb entry.
6495 *
6496 * This routine check if fw_ddb_entry already exists in list_nt to avoid
6497 * duplicate ddb in list_nt.
6498 * Return QLA_SUCCESS if duplicate ddb exit in list_nl.
6499 * Note: This function also update isid of DDB if required.
6500 **/
6501
6502 static int qla4xxx_is_flash_ddb_exists(struct scsi_qla_host *ha,
6503 struct list_head *list_nt,
6504 struct dev_db_entry *fw_ddb_entry)
6505 {
6506 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp;
6507 struct ql4_tuple_ddb *fw_tddb = NULL;
6508 struct ql4_tuple_ddb *tmp_tddb = NULL;
6509 int rval, ret = QLA_ERROR;
6510
6511 fw_tddb = vzalloc(sizeof(*fw_tddb));
6512 if (!fw_tddb) {
6513 DEBUG2(ql4_printk(KERN_WARNING, ha,
6514 "Memory Allocation failed.\n"));
6515 ret = QLA_SUCCESS;
6516 goto exit_check;
6517 }
6518
6519 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
6520 if (!tmp_tddb) {
6521 DEBUG2(ql4_printk(KERN_WARNING, ha,
6522 "Memory Allocation failed.\n"));
6523 ret = QLA_SUCCESS;
6524 goto exit_check;
6525 }
6526
6527 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL);
6528
6529 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
6530 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb,
6531 nt_ddb_idx->flash_isid);
6532 ret = qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, true);
6533 /* found duplicate ddb */
6534 if (ret == QLA_SUCCESS)
6535 goto exit_check;
6536 }
6537
6538 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
6539 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb, NULL);
6540
6541 ret = qla4xxx_should_update_isid(ha, tmp_tddb, fw_tddb);
6542 if (ret == QLA_SUCCESS) {
6543 rval = qla4xxx_update_isid(ha, list_nt, fw_ddb_entry);
6544 if (rval == QLA_SUCCESS)
6545 ret = QLA_ERROR;
6546 else
6547 ret = QLA_SUCCESS;
6548
6549 goto exit_check;
6550 }
6551 }
6552
6553 exit_check:
6554 if (fw_tddb)
6555 vfree(fw_tddb);
6556 if (tmp_tddb)
6557 vfree(tmp_tddb);
6558 return ret;
6559 }
6560
6561 static void qla4xxx_free_ddb_list(struct list_head *list_ddb)
6562 {
6563 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
6564
6565 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
6566 list_del_init(&ddb_idx->list);
6567 vfree(ddb_idx);
6568 }
6569 }
6570
6571 static struct iscsi_endpoint *qla4xxx_get_ep_fwdb(struct scsi_qla_host *ha,
6572 struct dev_db_entry *fw_ddb_entry)
6573 {
6574 struct iscsi_endpoint *ep;
6575 struct sockaddr_in *addr;
6576 struct sockaddr_in6 *addr6;
6577 struct sockaddr *t_addr;
6578 struct sockaddr_storage *dst_addr;
6579 char *ip;
6580
6581 /* TODO: need to destroy on unload iscsi_endpoint*/
6582 dst_addr = vmalloc(sizeof(*dst_addr));
6583 if (!dst_addr)
6584 return NULL;
6585
6586 if (fw_ddb_entry->options & DDB_OPT_IPV6_DEVICE) {
6587 t_addr = (struct sockaddr *)dst_addr;
6588 t_addr->sa_family = AF_INET6;
6589 addr6 = (struct sockaddr_in6 *)dst_addr;
6590 ip = (char *)&addr6->sin6_addr;
6591 memcpy(ip, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN);
6592 addr6->sin6_port = htons(le16_to_cpu(fw_ddb_entry->port));
6593
6594 } else {
6595 t_addr = (struct sockaddr *)dst_addr;
6596 t_addr->sa_family = AF_INET;
6597 addr = (struct sockaddr_in *)dst_addr;
6598 ip = (char *)&addr->sin_addr;
6599 memcpy(ip, fw_ddb_entry->ip_addr, IP_ADDR_LEN);
6600 addr->sin_port = htons(le16_to_cpu(fw_ddb_entry->port));
6601 }
6602
6603 ep = qla4xxx_ep_connect(ha->host, (struct sockaddr *)dst_addr, 0);
6604 vfree(dst_addr);
6605 return ep;
6606 }
6607
6608 static int qla4xxx_verify_boot_idx(struct scsi_qla_host *ha, uint16_t idx)
6609 {
6610 if (ql4xdisablesysfsboot)
6611 return QLA_SUCCESS;
6612 if (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx)
6613 return QLA_ERROR;
6614 return QLA_SUCCESS;
6615 }
6616
6617 static void qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha,
6618 struct ddb_entry *ddb_entry,
6619 uint16_t idx)
6620 {
6621 uint16_t def_timeout;
6622
6623 ddb_entry->ddb_type = FLASH_DDB;
6624 ddb_entry->fw_ddb_index = INVALID_ENTRY;
6625 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE;
6626 ddb_entry->ha = ha;
6627 ddb_entry->unblock_sess = qla4xxx_unblock_flash_ddb;
6628 ddb_entry->ddb_change = qla4xxx_flash_ddb_change;
6629 ddb_entry->chap_tbl_idx = INVALID_ENTRY;
6630
6631 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY);
6632 atomic_set(&ddb_entry->relogin_timer, 0);
6633 atomic_set(&ddb_entry->relogin_retry_count, 0);
6634 def_timeout = le16_to_cpu(ddb_entry->fw_ddb_entry.def_timeout);
6635 ddb_entry->default_relogin_timeout =
6636 (def_timeout > LOGIN_TOV) && (def_timeout < LOGIN_TOV * 10) ?
6637 def_timeout : LOGIN_TOV;
6638 ddb_entry->default_time2wait =
6639 le16_to_cpu(ddb_entry->fw_ddb_entry.iscsi_def_time2wait);
6640
6641 if (ql4xdisablesysfsboot &&
6642 (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx))
6643 set_bit(DF_BOOT_TGT, &ddb_entry->flags);
6644 }
6645
6646 static void qla4xxx_wait_for_ip_configuration(struct scsi_qla_host *ha)
6647 {
6648 uint32_t idx = 0;
6649 uint32_t ip_idx[IP_ADDR_COUNT] = {0, 1, 2, 3}; /* 4 IP interfaces */
6650 uint32_t sts[MBOX_REG_COUNT];
6651 uint32_t ip_state;
6652 unsigned long wtime;
6653 int ret;
6654
6655 wtime = jiffies + (HZ * IP_CONFIG_TOV);
6656 do {
6657 for (idx = 0; idx < IP_ADDR_COUNT; idx++) {
6658 if (ip_idx[idx] == -1)
6659 continue;
6660
6661 ret = qla4xxx_get_ip_state(ha, 0, ip_idx[idx], sts);
6662
6663 if (ret == QLA_ERROR) {
6664 ip_idx[idx] = -1;
6665 continue;
6666 }
6667
6668 ip_state = (sts[1] & IP_STATE_MASK) >> IP_STATE_SHIFT;
6669
6670 DEBUG2(ql4_printk(KERN_INFO, ha,
6671 "Waiting for IP state for idx = %d, state = 0x%x\n",
6672 ip_idx[idx], ip_state));
6673 if (ip_state == IP_ADDRSTATE_UNCONFIGURED ||
6674 ip_state == IP_ADDRSTATE_INVALID ||
6675 ip_state == IP_ADDRSTATE_PREFERRED ||
6676 ip_state == IP_ADDRSTATE_DEPRICATED ||
6677 ip_state == IP_ADDRSTATE_DISABLING)
6678 ip_idx[idx] = -1;
6679 }
6680
6681 /* Break if all IP states checked */
6682 if ((ip_idx[0] == -1) &&
6683 (ip_idx[1] == -1) &&
6684 (ip_idx[2] == -1) &&
6685 (ip_idx[3] == -1))
6686 break;
6687 schedule_timeout_uninterruptible(HZ);
6688 } while (time_after(wtime, jiffies));
6689 }
6690
6691 static int qla4xxx_cmp_fw_stentry(struct dev_db_entry *fw_ddb_entry,
6692 struct dev_db_entry *flash_ddb_entry)
6693 {
6694 uint16_t options = 0;
6695 size_t ip_len = IP_ADDR_LEN;
6696
6697 options = le16_to_cpu(fw_ddb_entry->options);
6698 if (options & DDB_OPT_IPV6_DEVICE)
6699 ip_len = IPv6_ADDR_LEN;
6700
6701 if (memcmp(fw_ddb_entry->ip_addr, flash_ddb_entry->ip_addr, ip_len))
6702 return QLA_ERROR;
6703
6704 if (memcmp(&fw_ddb_entry->isid[0], &flash_ddb_entry->isid[0],
6705 sizeof(fw_ddb_entry->isid)))
6706 return QLA_ERROR;
6707
6708 if (memcmp(&fw_ddb_entry->port, &flash_ddb_entry->port,
6709 sizeof(fw_ddb_entry->port)))
6710 return QLA_ERROR;
6711
6712 return QLA_SUCCESS;
6713 }
6714
6715 static int qla4xxx_find_flash_st_idx(struct scsi_qla_host *ha,
6716 struct dev_db_entry *fw_ddb_entry,
6717 uint32_t fw_idx, uint32_t *flash_index)
6718 {
6719 struct dev_db_entry *flash_ddb_entry;
6720 dma_addr_t flash_ddb_entry_dma;
6721 uint32_t idx = 0;
6722 int max_ddbs;
6723 int ret = QLA_ERROR, status;
6724
6725 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
6726 MAX_DEV_DB_ENTRIES;
6727
6728 flash_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
6729 &flash_ddb_entry_dma);
6730 if (flash_ddb_entry == NULL || fw_ddb_entry == NULL) {
6731 ql4_printk(KERN_ERR, ha, "Out of memory\n");
6732 goto exit_find_st_idx;
6733 }
6734
6735 status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry,
6736 flash_ddb_entry_dma, fw_idx);
6737 if (status == QLA_SUCCESS) {
6738 status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry);
6739 if (status == QLA_SUCCESS) {
6740 *flash_index = fw_idx;
6741 ret = QLA_SUCCESS;
6742 goto exit_find_st_idx;
6743 }
6744 }
6745
6746 for (idx = 0; idx < max_ddbs; idx++) {
6747 status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry,
6748 flash_ddb_entry_dma, idx);
6749 if (status == QLA_ERROR)
6750 continue;
6751
6752 status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry);
6753 if (status == QLA_SUCCESS) {
6754 *flash_index = idx;
6755 ret = QLA_SUCCESS;
6756 goto exit_find_st_idx;
6757 }
6758 }
6759
6760 if (idx == max_ddbs)
6761 ql4_printk(KERN_ERR, ha, "Failed to find ST [%d] in flash\n",
6762 fw_idx);
6763
6764 exit_find_st_idx:
6765 if (flash_ddb_entry)
6766 dma_pool_free(ha->fw_ddb_dma_pool, flash_ddb_entry,
6767 flash_ddb_entry_dma);
6768
6769 return ret;
6770 }
6771
6772 static void qla4xxx_build_st_list(struct scsi_qla_host *ha,
6773 struct list_head *list_st)
6774 {
6775 struct qla_ddb_index *st_ddb_idx;
6776 int max_ddbs;
6777 int fw_idx_size;
6778 struct dev_db_entry *fw_ddb_entry;
6779 dma_addr_t fw_ddb_dma;
6780 int ret;
6781 uint32_t idx = 0, next_idx = 0;
6782 uint32_t state = 0, conn_err = 0;
6783 uint32_t flash_index = -1;
6784 uint16_t conn_id = 0;
6785
6786 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
6787 &fw_ddb_dma);
6788 if (fw_ddb_entry == NULL) {
6789 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
6790 goto exit_st_list;
6791 }
6792
6793 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
6794 MAX_DEV_DB_ENTRIES;
6795 fw_idx_size = sizeof(struct qla_ddb_index);
6796
6797 for (idx = 0; idx < max_ddbs; idx = next_idx) {
6798 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
6799 NULL, &next_idx, &state,
6800 &conn_err, NULL, &conn_id);
6801 if (ret == QLA_ERROR)
6802 break;
6803
6804 /* Ignore DDB if invalid state (unassigned) */
6805 if (state == DDB_DS_UNASSIGNED)
6806 goto continue_next_st;
6807
6808 /* Check if ST, add to the list_st */
6809 if (strlen((char *) fw_ddb_entry->iscsi_name) != 0)
6810 goto continue_next_st;
6811
6812 st_ddb_idx = vzalloc(fw_idx_size);
6813 if (!st_ddb_idx)
6814 break;
6815
6816 ret = qla4xxx_find_flash_st_idx(ha, fw_ddb_entry, idx,
6817 &flash_index);
6818 if (ret == QLA_ERROR) {
6819 ql4_printk(KERN_ERR, ha,
6820 "No flash entry for ST at idx [%d]\n", idx);
6821 st_ddb_idx->flash_ddb_idx = idx;
6822 } else {
6823 ql4_printk(KERN_INFO, ha,
6824 "ST at idx [%d] is stored at flash [%d]\n",
6825 idx, flash_index);
6826 st_ddb_idx->flash_ddb_idx = flash_index;
6827 }
6828
6829 st_ddb_idx->fw_ddb_idx = idx;
6830
6831 list_add_tail(&st_ddb_idx->list, list_st);
6832 continue_next_st:
6833 if (next_idx == 0)
6834 break;
6835 }
6836
6837 exit_st_list:
6838 if (fw_ddb_entry)
6839 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
6840 }
6841
6842 /**
6843 * qla4xxx_remove_failed_ddb - Remove inactive or failed ddb from list
6844 * @ha: pointer to adapter structure
6845 * @list_ddb: List from which failed ddb to be removed
6846 *
6847 * Iterate over the list of DDBs and find and remove DDBs that are either in
6848 * no connection active state or failed state
6849 **/
6850 static void qla4xxx_remove_failed_ddb(struct scsi_qla_host *ha,
6851 struct list_head *list_ddb)
6852 {
6853 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
6854 uint32_t next_idx = 0;
6855 uint32_t state = 0, conn_err = 0;
6856 int ret;
6857
6858 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
6859 ret = qla4xxx_get_fwddb_entry(ha, ddb_idx->fw_ddb_idx,
6860 NULL, 0, NULL, &next_idx, &state,
6861 &conn_err, NULL, NULL);
6862 if (ret == QLA_ERROR)
6863 continue;
6864
6865 if (state == DDB_DS_NO_CONNECTION_ACTIVE ||
6866 state == DDB_DS_SESSION_FAILED) {
6867 list_del_init(&ddb_idx->list);
6868 vfree(ddb_idx);
6869 }
6870 }
6871 }
6872
6873 static void qla4xxx_update_sess_disc_idx(struct scsi_qla_host *ha,
6874 struct ddb_entry *ddb_entry,
6875 struct dev_db_entry *fw_ddb_entry)
6876 {
6877 struct iscsi_cls_session *cls_sess;
6878 struct iscsi_session *sess;
6879 uint32_t max_ddbs = 0;
6880 uint16_t ddb_link = -1;
6881
6882 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
6883 MAX_DEV_DB_ENTRIES;
6884
6885 cls_sess = ddb_entry->sess;
6886 sess = cls_sess->dd_data;
6887
6888 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
6889 if (ddb_link < max_ddbs)
6890 sess->discovery_parent_idx = ddb_link;
6891 else
6892 sess->discovery_parent_idx = DDB_NO_LINK;
6893 }
6894
6895 static int qla4xxx_sess_conn_setup(struct scsi_qla_host *ha,
6896 struct dev_db_entry *fw_ddb_entry,
6897 int is_reset, uint16_t idx)
6898 {
6899 struct iscsi_cls_session *cls_sess;
6900 struct iscsi_session *sess;
6901 struct iscsi_cls_conn *cls_conn;
6902 struct iscsi_endpoint *ep;
6903 uint16_t cmds_max = 32;
6904 uint16_t conn_id = 0;
6905 uint32_t initial_cmdsn = 0;
6906 int ret = QLA_SUCCESS;
6907
6908 struct ddb_entry *ddb_entry = NULL;
6909
6910 /* Create session object, with INVALID_ENTRY,
6911 * the targer_id would get set when we issue the login
6912 */
6913 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, ha->host,
6914 cmds_max, sizeof(struct ddb_entry),
6915 sizeof(struct ql4_task_data),
6916 initial_cmdsn, INVALID_ENTRY);
6917 if (!cls_sess) {
6918 ret = QLA_ERROR;
6919 goto exit_setup;
6920 }
6921
6922 /*
6923 * so calling module_put function to decrement the
6924 * reference count.
6925 **/
6926 module_put(qla4xxx_iscsi_transport.owner);
6927 sess = cls_sess->dd_data;
6928 ddb_entry = sess->dd_data;
6929 ddb_entry->sess = cls_sess;
6930
6931 cls_sess->recovery_tmo = ql4xsess_recovery_tmo;
6932 memcpy(&ddb_entry->fw_ddb_entry, fw_ddb_entry,
6933 sizeof(struct dev_db_entry));
6934
6935 qla4xxx_setup_flash_ddb_entry(ha, ddb_entry, idx);
6936
6937 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), conn_id);
6938
6939 if (!cls_conn) {
6940 ret = QLA_ERROR;
6941 goto exit_setup;
6942 }
6943
6944 ddb_entry->conn = cls_conn;
6945
6946 /* Setup ep, for displaying attributes in sysfs */
6947 ep = qla4xxx_get_ep_fwdb(ha, fw_ddb_entry);
6948 if (ep) {
6949 ep->conn = cls_conn;
6950 cls_conn->ep = ep;
6951 } else {
6952 DEBUG2(ql4_printk(KERN_ERR, ha, "Unable to get ep\n"));
6953 ret = QLA_ERROR;
6954 goto exit_setup;
6955 }
6956
6957 /* Update sess/conn params */
6958 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn);
6959 qla4xxx_update_sess_disc_idx(ha, ddb_entry, fw_ddb_entry);
6960
6961 if (is_reset == RESET_ADAPTER) {
6962 iscsi_block_session(cls_sess);
6963 /* Use the relogin path to discover new devices
6964 * by short-circuting the logic of setting
6965 * timer to relogin - instead set the flags
6966 * to initiate login right away.
6967 */
6968 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
6969 set_bit(DF_RELOGIN, &ddb_entry->flags);
6970 }
6971
6972 exit_setup:
6973 return ret;
6974 }
6975
6976 static void qla4xxx_update_fw_ddb_link(struct scsi_qla_host *ha,
6977 struct list_head *list_ddb,
6978 struct dev_db_entry *fw_ddb_entry)
6979 {
6980 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
6981 uint16_t ddb_link;
6982
6983 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
6984
6985 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
6986 if (ddb_idx->fw_ddb_idx == ddb_link) {
6987 DEBUG2(ql4_printk(KERN_INFO, ha,
6988 "Updating NT parent idx from [%d] to [%d]\n",
6989 ddb_link, ddb_idx->flash_ddb_idx));
6990 fw_ddb_entry->ddb_link =
6991 cpu_to_le16(ddb_idx->flash_ddb_idx);
6992 return;
6993 }
6994 }
6995 }
6996
6997 static void qla4xxx_build_nt_list(struct scsi_qla_host *ha,
6998 struct list_head *list_nt,
6999 struct list_head *list_st,
7000 int is_reset)
7001 {
7002 struct dev_db_entry *fw_ddb_entry;
7003 struct ddb_entry *ddb_entry = NULL;
7004 dma_addr_t fw_ddb_dma;
7005 int max_ddbs;
7006 int fw_idx_size;
7007 int ret;
7008 uint32_t idx = 0, next_idx = 0;
7009 uint32_t state = 0, conn_err = 0;
7010 uint32_t ddb_idx = -1;
7011 uint16_t conn_id = 0;
7012 uint16_t ddb_link = -1;
7013 struct qla_ddb_index *nt_ddb_idx;
7014
7015 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
7016 &fw_ddb_dma);
7017 if (fw_ddb_entry == NULL) {
7018 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
7019 goto exit_nt_list;
7020 }
7021 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
7022 MAX_DEV_DB_ENTRIES;
7023 fw_idx_size = sizeof(struct qla_ddb_index);
7024
7025 for (idx = 0; idx < max_ddbs; idx = next_idx) {
7026 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
7027 NULL, &next_idx, &state,
7028 &conn_err, NULL, &conn_id);
7029 if (ret == QLA_ERROR)
7030 break;
7031
7032 if (qla4xxx_verify_boot_idx(ha, idx) != QLA_SUCCESS)
7033 goto continue_next_nt;
7034
7035 /* Check if NT, then add to list it */
7036 if (strlen((char *) fw_ddb_entry->iscsi_name) == 0)
7037 goto continue_next_nt;
7038
7039 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
7040 if (ddb_link < max_ddbs)
7041 qla4xxx_update_fw_ddb_link(ha, list_st, fw_ddb_entry);
7042
7043 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE ||
7044 state == DDB_DS_SESSION_FAILED) &&
7045 (is_reset == INIT_ADAPTER))
7046 goto continue_next_nt;
7047
7048 DEBUG2(ql4_printk(KERN_INFO, ha,
7049 "Adding DDB to session = 0x%x\n", idx));
7050
7051 if (is_reset == INIT_ADAPTER) {
7052 nt_ddb_idx = vmalloc(fw_idx_size);
7053 if (!nt_ddb_idx)
7054 break;
7055
7056 nt_ddb_idx->fw_ddb_idx = idx;
7057
7058 /* Copy original isid as it may get updated in function
7059 * qla4xxx_update_isid(). We need original isid in
7060 * function qla4xxx_compare_tuple_ddb to find duplicate
7061 * target */
7062 memcpy(&nt_ddb_idx->flash_isid[0],
7063 &fw_ddb_entry->isid[0],
7064 sizeof(nt_ddb_idx->flash_isid));
7065
7066 ret = qla4xxx_is_flash_ddb_exists(ha, list_nt,
7067 fw_ddb_entry);
7068 if (ret == QLA_SUCCESS) {
7069 /* free nt_ddb_idx and do not add to list_nt */
7070 vfree(nt_ddb_idx);
7071 goto continue_next_nt;
7072 }
7073
7074 /* Copy updated isid */
7075 memcpy(&nt_ddb_idx->fw_ddb, fw_ddb_entry,
7076 sizeof(struct dev_db_entry));
7077
7078 list_add_tail(&nt_ddb_idx->list, list_nt);
7079 } else if (is_reset == RESET_ADAPTER) {
7080 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry,
7081 &ddb_idx);
7082 if (ret == QLA_SUCCESS) {
7083 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha,
7084 ddb_idx);
7085 if (ddb_entry != NULL)
7086 qla4xxx_update_sess_disc_idx(ha,
7087 ddb_entry,
7088 fw_ddb_entry);
7089 goto continue_next_nt;
7090 }
7091 }
7092
7093 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, is_reset, idx);
7094 if (ret == QLA_ERROR)
7095 goto exit_nt_list;
7096
7097 continue_next_nt:
7098 if (next_idx == 0)
7099 break;
7100 }
7101
7102 exit_nt_list:
7103 if (fw_ddb_entry)
7104 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
7105 }
7106
7107 static void qla4xxx_build_new_nt_list(struct scsi_qla_host *ha,
7108 struct list_head *list_nt,
7109 uint16_t target_id)
7110 {
7111 struct dev_db_entry *fw_ddb_entry;
7112 dma_addr_t fw_ddb_dma;
7113 int max_ddbs;
7114 int fw_idx_size;
7115 int ret;
7116 uint32_t idx = 0, next_idx = 0;
7117 uint32_t state = 0, conn_err = 0;
7118 uint16_t conn_id = 0;
7119 struct qla_ddb_index *nt_ddb_idx;
7120
7121 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
7122 &fw_ddb_dma);
7123 if (fw_ddb_entry == NULL) {
7124 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
7125 goto exit_new_nt_list;
7126 }
7127 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
7128 MAX_DEV_DB_ENTRIES;
7129 fw_idx_size = sizeof(struct qla_ddb_index);
7130
7131 for (idx = 0; idx < max_ddbs; idx = next_idx) {
7132 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
7133 NULL, &next_idx, &state,
7134 &conn_err, NULL, &conn_id);
7135 if (ret == QLA_ERROR)
7136 break;
7137
7138 /* Check if NT, then add it to list */
7139 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0)
7140 goto continue_next_new_nt;
7141
7142 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE))
7143 goto continue_next_new_nt;
7144
7145 DEBUG2(ql4_printk(KERN_INFO, ha,
7146 "Adding DDB to session = 0x%x\n", idx));
7147
7148 nt_ddb_idx = vmalloc(fw_idx_size);
7149 if (!nt_ddb_idx)
7150 break;
7151
7152 nt_ddb_idx->fw_ddb_idx = idx;
7153
7154 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL);
7155 if (ret == QLA_SUCCESS) {
7156 /* free nt_ddb_idx and do not add to list_nt */
7157 vfree(nt_ddb_idx);
7158 goto continue_next_new_nt;
7159 }
7160
7161 if (target_id < max_ddbs)
7162 fw_ddb_entry->ddb_link = cpu_to_le16(target_id);
7163
7164 list_add_tail(&nt_ddb_idx->list, list_nt);
7165
7166 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER,
7167 idx);
7168 if (ret == QLA_ERROR)
7169 goto exit_new_nt_list;
7170
7171 continue_next_new_nt:
7172 if (next_idx == 0)
7173 break;
7174 }
7175
7176 exit_new_nt_list:
7177 if (fw_ddb_entry)
7178 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
7179 }
7180
7181 /**
7182 * qla4xxx_sysfs_ddb_is_non_persistent - check for non-persistence of ddb entry
7183 * @dev: dev associated with the sysfs entry
7184 * @data: pointer to flashnode session object
7185 *
7186 * Returns:
7187 * 1: if flashnode entry is non-persistent
7188 * 0: if flashnode entry is persistent
7189 **/
7190 static int qla4xxx_sysfs_ddb_is_non_persistent(struct device *dev, void *data)
7191 {
7192 struct iscsi_bus_flash_session *fnode_sess;
7193
7194 if (!iscsi_flashnode_bus_match(dev, NULL))
7195 return 0;
7196
7197 fnode_sess = iscsi_dev_to_flash_session(dev);
7198
7199 return (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT);
7200 }
7201
7202 /**
7203 * qla4xxx_sysfs_ddb_tgt_create - Create sysfs entry for target
7204 * @ha: pointer to host
7205 * @fw_ddb_entry: flash ddb data
7206 * @idx: target index
7207 * @user: if set then this call is made from userland else from kernel
7208 *
7209 * Returns:
7210 * On sucess: QLA_SUCCESS
7211 * On failure: QLA_ERROR
7212 *
7213 * This create separate sysfs entries for session and connection attributes of
7214 * the given fw ddb entry.
7215 * If this is invoked as a result of a userspace call then the entry is marked
7216 * as nonpersistent using flash_state field.
7217 **/
7218 static int qla4xxx_sysfs_ddb_tgt_create(struct scsi_qla_host *ha,
7219 struct dev_db_entry *fw_ddb_entry,
7220 uint16_t *idx, int user)
7221 {
7222 struct iscsi_bus_flash_session *fnode_sess = NULL;
7223 struct iscsi_bus_flash_conn *fnode_conn = NULL;
7224 int rc = QLA_ERROR;
7225
7226 fnode_sess = iscsi_create_flashnode_sess(ha->host, *idx,
7227 &qla4xxx_iscsi_transport, 0);
7228 if (!fnode_sess) {
7229 ql4_printk(KERN_ERR, ha,
7230 "%s: Unable to create session sysfs entry for flashnode %d of host%lu\n",
7231 __func__, *idx, ha->host_no);
7232 goto exit_tgt_create;
7233 }
7234
7235 fnode_conn = iscsi_create_flashnode_conn(ha->host, fnode_sess,
7236 &qla4xxx_iscsi_transport, 0);
7237 if (!fnode_conn) {
7238 ql4_printk(KERN_ERR, ha,
7239 "%s: Unable to create conn sysfs entry for flashnode %d of host%lu\n",
7240 __func__, *idx, ha->host_no);
7241 goto free_sess;
7242 }
7243
7244 if (user) {
7245 fnode_sess->flash_state = DEV_DB_NON_PERSISTENT;
7246 } else {
7247 fnode_sess->flash_state = DEV_DB_PERSISTENT;
7248
7249 if (*idx == ha->pri_ddb_idx || *idx == ha->sec_ddb_idx)
7250 fnode_sess->is_boot_target = 1;
7251 else
7252 fnode_sess->is_boot_target = 0;
7253 }
7254
7255 rc = qla4xxx_copy_from_fwddb_param(fnode_sess, fnode_conn,
7256 fw_ddb_entry);
7257 if (rc)
7258 goto free_sess;
7259
7260 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n",
7261 __func__, fnode_sess->dev.kobj.name);
7262
7263 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n",
7264 __func__, fnode_conn->dev.kobj.name);
7265
7266 return QLA_SUCCESS;
7267
7268 free_sess:
7269 iscsi_destroy_flashnode_sess(fnode_sess);
7270
7271 exit_tgt_create:
7272 return QLA_ERROR;
7273 }
7274
7275 /**
7276 * qla4xxx_sysfs_ddb_add - Add new ddb entry in flash
7277 * @shost: pointer to host
7278 * @buf: type of ddb entry (ipv4/ipv6)
7279 * @len: length of buf
7280 *
7281 * This creates new ddb entry in the flash by finding first free index and
7282 * storing default ddb there. And then create sysfs entry for the new ddb entry.
7283 **/
7284 static int qla4xxx_sysfs_ddb_add(struct Scsi_Host *shost, const char *buf,
7285 int len)
7286 {
7287 struct scsi_qla_host *ha = to_qla_host(shost);
7288 struct dev_db_entry *fw_ddb_entry = NULL;
7289 dma_addr_t fw_ddb_entry_dma;
7290 struct device *dev;
7291 uint16_t idx = 0;
7292 uint16_t max_ddbs = 0;
7293 uint32_t options = 0;
7294 uint32_t rval = QLA_ERROR;
7295
7296 if (strncasecmp(PORTAL_TYPE_IPV4, buf, 4) &&
7297 strncasecmp(PORTAL_TYPE_IPV6, buf, 4)) {
7298 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Invalid portal type\n",
7299 __func__));
7300 goto exit_ddb_add;
7301 }
7302
7303 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES :
7304 MAX_DEV_DB_ENTRIES;
7305
7306 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7307 &fw_ddb_entry_dma, GFP_KERNEL);
7308 if (!fw_ddb_entry) {
7309 DEBUG2(ql4_printk(KERN_ERR, ha,
7310 "%s: Unable to allocate dma buffer\n",
7311 __func__));
7312 goto exit_ddb_add;
7313 }
7314
7315 dev = iscsi_find_flashnode_sess(ha->host, NULL,
7316 qla4xxx_sysfs_ddb_is_non_persistent);
7317 if (dev) {
7318 ql4_printk(KERN_ERR, ha,
7319 "%s: A non-persistent entry %s found\n",
7320 __func__, dev->kobj.name);
7321 put_device(dev);
7322 goto exit_ddb_add;
7323 }
7324
7325 /* Index 0 and 1 are reserved for boot target entries */
7326 for (idx = 2; idx < max_ddbs; idx++) {
7327 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry,
7328 fw_ddb_entry_dma, idx))
7329 break;
7330 }
7331
7332 if (idx == max_ddbs)
7333 goto exit_ddb_add;
7334
7335 if (!strncasecmp("ipv6", buf, 4))
7336 options |= IPV6_DEFAULT_DDB_ENTRY;
7337
7338 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
7339 if (rval == QLA_ERROR)
7340 goto exit_ddb_add;
7341
7342 rval = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 1);
7343
7344 exit_ddb_add:
7345 if (fw_ddb_entry)
7346 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7347 fw_ddb_entry, fw_ddb_entry_dma);
7348 if (rval == QLA_SUCCESS)
7349 return idx;
7350 else
7351 return -EIO;
7352 }
7353
7354 /**
7355 * qla4xxx_sysfs_ddb_apply - write the target ddb contents to Flash
7356 * @fnode_sess: pointer to session attrs of flash ddb entry
7357 * @fnode_conn: pointer to connection attrs of flash ddb entry
7358 *
7359 * This writes the contents of target ddb buffer to Flash with a valid cookie
7360 * value in order to make the ddb entry persistent.
7361 **/
7362 static int qla4xxx_sysfs_ddb_apply(struct iscsi_bus_flash_session *fnode_sess,
7363 struct iscsi_bus_flash_conn *fnode_conn)
7364 {
7365 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7366 struct scsi_qla_host *ha = to_qla_host(shost);
7367 uint32_t dev_db_start_offset = FLASH_OFFSET_DB_INFO;
7368 struct dev_db_entry *fw_ddb_entry = NULL;
7369 dma_addr_t fw_ddb_entry_dma;
7370 uint32_t options = 0;
7371 int rval = 0;
7372
7373 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7374 &fw_ddb_entry_dma, GFP_KERNEL);
7375 if (!fw_ddb_entry) {
7376 DEBUG2(ql4_printk(KERN_ERR, ha,
7377 "%s: Unable to allocate dma buffer\n",
7378 __func__));
7379 rval = -ENOMEM;
7380 goto exit_ddb_apply;
7381 }
7382
7383 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7384 options |= IPV6_DEFAULT_DDB_ENTRY;
7385
7386 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
7387 if (rval == QLA_ERROR)
7388 goto exit_ddb_apply;
7389
7390 dev_db_start_offset += (fnode_sess->target_id *
7391 sizeof(*fw_ddb_entry));
7392
7393 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry);
7394 fw_ddb_entry->cookie = DDB_VALID_COOKIE;
7395
7396 rval = qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset,
7397 sizeof(*fw_ddb_entry), FLASH_OPT_RMW_COMMIT);
7398
7399 if (rval == QLA_SUCCESS) {
7400 fnode_sess->flash_state = DEV_DB_PERSISTENT;
7401 ql4_printk(KERN_INFO, ha,
7402 "%s: flash node %u of host %lu written to flash\n",
7403 __func__, fnode_sess->target_id, ha->host_no);
7404 } else {
7405 rval = -EIO;
7406 ql4_printk(KERN_ERR, ha,
7407 "%s: Error while writing flash node %u of host %lu to flash\n",
7408 __func__, fnode_sess->target_id, ha->host_no);
7409 }
7410
7411 exit_ddb_apply:
7412 if (fw_ddb_entry)
7413 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7414 fw_ddb_entry, fw_ddb_entry_dma);
7415 return rval;
7416 }
7417
7418 static ssize_t qla4xxx_sysfs_ddb_conn_open(struct scsi_qla_host *ha,
7419 struct dev_db_entry *fw_ddb_entry,
7420 uint16_t idx)
7421 {
7422 struct dev_db_entry *ddb_entry = NULL;
7423 dma_addr_t ddb_entry_dma;
7424 unsigned long wtime;
7425 uint32_t mbx_sts = 0;
7426 uint32_t state = 0, conn_err = 0;
7427 uint16_t tmo = 0;
7428 int ret = 0;
7429
7430 ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*ddb_entry),
7431 &ddb_entry_dma, GFP_KERNEL);
7432 if (!ddb_entry) {
7433 DEBUG2(ql4_printk(KERN_ERR, ha,
7434 "%s: Unable to allocate dma buffer\n",
7435 __func__));
7436 return QLA_ERROR;
7437 }
7438
7439 memcpy(ddb_entry, fw_ddb_entry, sizeof(*ddb_entry));
7440
7441 ret = qla4xxx_set_ddb_entry(ha, idx, ddb_entry_dma, &mbx_sts);
7442 if (ret != QLA_SUCCESS) {
7443 DEBUG2(ql4_printk(KERN_ERR, ha,
7444 "%s: Unable to set ddb entry for index %d\n",
7445 __func__, idx));
7446 goto exit_ddb_conn_open;
7447 }
7448
7449 qla4xxx_conn_open(ha, idx);
7450
7451 /* To ensure that sendtargets is done, wait for at least 12 secs */
7452 tmo = ((ha->def_timeout > LOGIN_TOV) &&
7453 (ha->def_timeout < LOGIN_TOV * 10) ?
7454 ha->def_timeout : LOGIN_TOV);
7455
7456 DEBUG2(ql4_printk(KERN_INFO, ha,
7457 "Default time to wait for login to ddb %d\n", tmo));
7458
7459 wtime = jiffies + (HZ * tmo);
7460 do {
7461 ret = qla4xxx_get_fwddb_entry(ha, idx, NULL, 0, NULL,
7462 NULL, &state, &conn_err, NULL,
7463 NULL);
7464 if (ret == QLA_ERROR)
7465 continue;
7466
7467 if (state == DDB_DS_NO_CONNECTION_ACTIVE ||
7468 state == DDB_DS_SESSION_FAILED)
7469 break;
7470
7471 schedule_timeout_uninterruptible(HZ / 10);
7472 } while (time_after(wtime, jiffies));
7473
7474 exit_ddb_conn_open:
7475 if (ddb_entry)
7476 dma_free_coherent(&ha->pdev->dev, sizeof(*ddb_entry),
7477 ddb_entry, ddb_entry_dma);
7478 return ret;
7479 }
7480
7481 static int qla4xxx_ddb_login_st(struct scsi_qla_host *ha,
7482 struct dev_db_entry *fw_ddb_entry,
7483 uint16_t target_id)
7484 {
7485 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
7486 struct list_head list_nt;
7487 uint16_t ddb_index;
7488 int ret = 0;
7489
7490 if (test_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags)) {
7491 ql4_printk(KERN_WARNING, ha,
7492 "%s: A discovery already in progress!\n", __func__);
7493 return QLA_ERROR;
7494 }
7495
7496 INIT_LIST_HEAD(&list_nt);
7497
7498 set_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags);
7499
7500 ret = qla4xxx_get_ddb_index(ha, &ddb_index);
7501 if (ret == QLA_ERROR)
7502 goto exit_login_st_clr_bit;
7503
7504 ret = qla4xxx_sysfs_ddb_conn_open(ha, fw_ddb_entry, ddb_index);
7505 if (ret == QLA_ERROR)
7506 goto exit_login_st;
7507
7508 qla4xxx_build_new_nt_list(ha, &list_nt, target_id);
7509
7510 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, &list_nt, list) {
7511 list_del_init(&ddb_idx->list);
7512 qla4xxx_clear_ddb_entry(ha, ddb_idx->fw_ddb_idx);
7513 vfree(ddb_idx);
7514 }
7515
7516 exit_login_st:
7517 if (qla4xxx_clear_ddb_entry(ha, ddb_index) == QLA_ERROR) {
7518 ql4_printk(KERN_ERR, ha,
7519 "Unable to clear DDB index = 0x%x\n", ddb_index);
7520 }
7521
7522 clear_bit(ddb_index, ha->ddb_idx_map);
7523
7524 exit_login_st_clr_bit:
7525 clear_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags);
7526 return ret;
7527 }
7528
7529 static int qla4xxx_ddb_login_nt(struct scsi_qla_host *ha,
7530 struct dev_db_entry *fw_ddb_entry,
7531 uint16_t idx)
7532 {
7533 int ret = QLA_ERROR;
7534
7535 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL);
7536 if (ret != QLA_SUCCESS)
7537 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER,
7538 idx);
7539 else
7540 ret = -EPERM;
7541
7542 return ret;
7543 }
7544
7545 /**
7546 * qla4xxx_sysfs_ddb_login - Login to the specified target
7547 * @fnode_sess: pointer to session attrs of flash ddb entry
7548 * @fnode_conn: pointer to connection attrs of flash ddb entry
7549 *
7550 * This logs in to the specified target
7551 **/
7552 static int qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess,
7553 struct iscsi_bus_flash_conn *fnode_conn)
7554 {
7555 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7556 struct scsi_qla_host *ha = to_qla_host(shost);
7557 struct dev_db_entry *fw_ddb_entry = NULL;
7558 dma_addr_t fw_ddb_entry_dma;
7559 uint32_t options = 0;
7560 int ret = 0;
7561
7562 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT) {
7563 ql4_printk(KERN_ERR, ha,
7564 "%s: Target info is not persistent\n", __func__);
7565 ret = -EIO;
7566 goto exit_ddb_login;
7567 }
7568
7569 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7570 &fw_ddb_entry_dma, GFP_KERNEL);
7571 if (!fw_ddb_entry) {
7572 DEBUG2(ql4_printk(KERN_ERR, ha,
7573 "%s: Unable to allocate dma buffer\n",
7574 __func__));
7575 ret = -ENOMEM;
7576 goto exit_ddb_login;
7577 }
7578
7579 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7580 options |= IPV6_DEFAULT_DDB_ENTRY;
7581
7582 ret = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
7583 if (ret == QLA_ERROR)
7584 goto exit_ddb_login;
7585
7586 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry);
7587 fw_ddb_entry->cookie = DDB_VALID_COOKIE;
7588
7589 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0)
7590 ret = qla4xxx_ddb_login_st(ha, fw_ddb_entry,
7591 fnode_sess->target_id);
7592 else
7593 ret = qla4xxx_ddb_login_nt(ha, fw_ddb_entry,
7594 fnode_sess->target_id);
7595
7596 if (ret > 0)
7597 ret = -EIO;
7598
7599 exit_ddb_login:
7600 if (fw_ddb_entry)
7601 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7602 fw_ddb_entry, fw_ddb_entry_dma);
7603 return ret;
7604 }
7605
7606 /**
7607 * qla4xxx_sysfs_ddb_logout_sid - Logout session for the specified target
7608 * @cls_sess: pointer to session to be logged out
7609 *
7610 * This performs session log out from the specified target
7611 **/
7612 static int qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess)
7613 {
7614 struct iscsi_session *sess;
7615 struct ddb_entry *ddb_entry = NULL;
7616 struct scsi_qla_host *ha;
7617 struct dev_db_entry *fw_ddb_entry = NULL;
7618 dma_addr_t fw_ddb_entry_dma;
7619 unsigned long flags;
7620 unsigned long wtime;
7621 uint32_t ddb_state;
7622 int options;
7623 int ret = 0;
7624
7625 sess = cls_sess->dd_data;
7626 ddb_entry = sess->dd_data;
7627 ha = ddb_entry->ha;
7628
7629 if (ddb_entry->ddb_type != FLASH_DDB) {
7630 ql4_printk(KERN_ERR, ha, "%s: Not a flash node session\n",
7631 __func__);
7632 ret = -ENXIO;
7633 goto exit_ddb_logout;
7634 }
7635
7636 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) {
7637 ql4_printk(KERN_ERR, ha,
7638 "%s: Logout from boot target entry is not permitted.\n",
7639 __func__);
7640 ret = -EPERM;
7641 goto exit_ddb_logout;
7642 }
7643
7644 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7645 &fw_ddb_entry_dma, GFP_KERNEL);
7646 if (!fw_ddb_entry) {
7647 ql4_printk(KERN_ERR, ha,
7648 "%s: Unable to allocate dma buffer\n", __func__);
7649 ret = -ENOMEM;
7650 goto exit_ddb_logout;
7651 }
7652
7653 if (test_and_set_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags))
7654 goto ddb_logout_init;
7655
7656 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
7657 fw_ddb_entry, fw_ddb_entry_dma,
7658 NULL, NULL, &ddb_state, NULL,
7659 NULL, NULL);
7660 if (ret == QLA_ERROR)
7661 goto ddb_logout_init;
7662
7663 if (ddb_state == DDB_DS_SESSION_ACTIVE)
7664 goto ddb_logout_init;
7665
7666 /* wait until next relogin is triggered using DF_RELOGIN and
7667 * clear DF_RELOGIN to avoid invocation of further relogin
7668 */
7669 wtime = jiffies + (HZ * RELOGIN_TOV);
7670 do {
7671 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags))
7672 goto ddb_logout_init;
7673
7674 schedule_timeout_uninterruptible(HZ);
7675 } while ((time_after(wtime, jiffies)));
7676
7677 ddb_logout_init:
7678 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY);
7679 atomic_set(&ddb_entry->relogin_timer, 0);
7680
7681 options = LOGOUT_OPTION_CLOSE_SESSION;
7682 qla4xxx_session_logout_ddb(ha, ddb_entry, options);
7683
7684 memset(fw_ddb_entry, 0, sizeof(*fw_ddb_entry));
7685 wtime = jiffies + (HZ * LOGOUT_TOV);
7686 do {
7687 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
7688 fw_ddb_entry, fw_ddb_entry_dma,
7689 NULL, NULL, &ddb_state, NULL,
7690 NULL, NULL);
7691 if (ret == QLA_ERROR)
7692 goto ddb_logout_clr_sess;
7693
7694 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) ||
7695 (ddb_state == DDB_DS_SESSION_FAILED))
7696 goto ddb_logout_clr_sess;
7697
7698 schedule_timeout_uninterruptible(HZ);
7699 } while ((time_after(wtime, jiffies)));
7700
7701 ddb_logout_clr_sess:
7702 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
7703 /*
7704 * we have decremented the reference count of the driver
7705 * when we setup the session to have the driver unload
7706 * to be seamless without actually destroying the
7707 * session
7708 **/
7709 try_module_get(qla4xxx_iscsi_transport.owner);
7710 iscsi_destroy_endpoint(ddb_entry->conn->ep);
7711
7712 spin_lock_irqsave(&ha->hardware_lock, flags);
7713 qla4xxx_free_ddb(ha, ddb_entry);
7714 clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map);
7715 spin_unlock_irqrestore(&ha->hardware_lock, flags);
7716
7717 iscsi_session_teardown(ddb_entry->sess);
7718
7719 clear_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags);
7720 ret = QLA_SUCCESS;
7721
7722 exit_ddb_logout:
7723 if (fw_ddb_entry)
7724 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7725 fw_ddb_entry, fw_ddb_entry_dma);
7726 return ret;
7727 }
7728
7729 /**
7730 * qla4xxx_sysfs_ddb_logout - Logout from the specified target
7731 * @fnode_sess: pointer to session attrs of flash ddb entry
7732 * @fnode_conn: pointer to connection attrs of flash ddb entry
7733 *
7734 * This performs log out from the specified target
7735 **/
7736 static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess,
7737 struct iscsi_bus_flash_conn *fnode_conn)
7738 {
7739 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7740 struct scsi_qla_host *ha = to_qla_host(shost);
7741 struct ql4_tuple_ddb *flash_tddb = NULL;
7742 struct ql4_tuple_ddb *tmp_tddb = NULL;
7743 struct dev_db_entry *fw_ddb_entry = NULL;
7744 struct ddb_entry *ddb_entry = NULL;
7745 dma_addr_t fw_ddb_dma;
7746 uint32_t next_idx = 0;
7747 uint32_t state = 0, conn_err = 0;
7748 uint16_t conn_id = 0;
7749 int idx, index;
7750 int status, ret = 0;
7751
7752 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
7753 &fw_ddb_dma);
7754 if (fw_ddb_entry == NULL) {
7755 ql4_printk(KERN_ERR, ha, "%s:Out of memory\n", __func__);
7756 ret = -ENOMEM;
7757 goto exit_ddb_logout;
7758 }
7759
7760 flash_tddb = vzalloc(sizeof(*flash_tddb));
7761 if (!flash_tddb) {
7762 ql4_printk(KERN_WARNING, ha,
7763 "%s:Memory Allocation failed.\n", __func__);
7764 ret = -ENOMEM;
7765 goto exit_ddb_logout;
7766 }
7767
7768 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
7769 if (!tmp_tddb) {
7770 ql4_printk(KERN_WARNING, ha,
7771 "%s:Memory Allocation failed.\n", __func__);
7772 ret = -ENOMEM;
7773 goto exit_ddb_logout;
7774 }
7775
7776 if (!fnode_sess->targetname) {
7777 ql4_printk(KERN_ERR, ha,
7778 "%s:Cannot logout from SendTarget entry\n",
7779 __func__);
7780 ret = -EPERM;
7781 goto exit_ddb_logout;
7782 }
7783
7784 if (fnode_sess->is_boot_target) {
7785 ql4_printk(KERN_ERR, ha,
7786 "%s: Logout from boot target entry is not permitted.\n",
7787 __func__);
7788 ret = -EPERM;
7789 goto exit_ddb_logout;
7790 }
7791
7792 strlcpy(flash_tddb->iscsi_name, fnode_sess->targetname,
7793 ISCSI_NAME_SIZE);
7794
7795 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7796 sprintf(flash_tddb->ip_addr, "%pI6", fnode_conn->ipaddress);
7797 else
7798 sprintf(flash_tddb->ip_addr, "%pI4", fnode_conn->ipaddress);
7799
7800 flash_tddb->tpgt = fnode_sess->tpgt;
7801 flash_tddb->port = fnode_conn->port;
7802
7803 COPY_ISID(flash_tddb->isid, fnode_sess->isid);
7804
7805 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
7806 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
7807 if (ddb_entry == NULL)
7808 continue;
7809
7810 if (ddb_entry->ddb_type != FLASH_DDB)
7811 continue;
7812
7813 index = ddb_entry->sess->target_id;
7814 status = qla4xxx_get_fwddb_entry(ha, index, fw_ddb_entry,
7815 fw_ddb_dma, NULL, &next_idx,
7816 &state, &conn_err, NULL,
7817 &conn_id);
7818 if (status == QLA_ERROR) {
7819 ret = -ENOMEM;
7820 break;
7821 }
7822
7823 qla4xxx_convert_param_ddb(fw_ddb_entry, tmp_tddb, NULL);
7824
7825 status = qla4xxx_compare_tuple_ddb(ha, flash_tddb, tmp_tddb,
7826 true);
7827 if (status == QLA_SUCCESS) {
7828 ret = qla4xxx_sysfs_ddb_logout_sid(ddb_entry->sess);
7829 break;
7830 }
7831 }
7832
7833 if (idx == MAX_DDB_ENTRIES)
7834 ret = -ESRCH;
7835
7836 exit_ddb_logout:
7837 if (flash_tddb)
7838 vfree(flash_tddb);
7839 if (tmp_tddb)
7840 vfree(tmp_tddb);
7841 if (fw_ddb_entry)
7842 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
7843
7844 return ret;
7845 }
7846
7847 static int
7848 qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session *fnode_sess,
7849 int param, char *buf)
7850 {
7851 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7852 struct scsi_qla_host *ha = to_qla_host(shost);
7853 struct iscsi_bus_flash_conn *fnode_conn;
7854 struct ql4_chap_table chap_tbl;
7855 struct device *dev;
7856 int parent_type;
7857 int rc = 0;
7858
7859 dev = iscsi_find_flashnode_conn(fnode_sess);
7860 if (!dev)
7861 return -EIO;
7862
7863 fnode_conn = iscsi_dev_to_flash_conn(dev);
7864
7865 switch (param) {
7866 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6:
7867 rc = sprintf(buf, "%u\n", fnode_conn->is_fw_assigned_ipv6);
7868 break;
7869 case ISCSI_FLASHNODE_PORTAL_TYPE:
7870 rc = sprintf(buf, "%s\n", fnode_sess->portal_type);
7871 break;
7872 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE:
7873 rc = sprintf(buf, "%u\n", fnode_sess->auto_snd_tgt_disable);
7874 break;
7875 case ISCSI_FLASHNODE_DISCOVERY_SESS:
7876 rc = sprintf(buf, "%u\n", fnode_sess->discovery_sess);
7877 break;
7878 case ISCSI_FLASHNODE_ENTRY_EN:
7879 rc = sprintf(buf, "%u\n", fnode_sess->entry_state);
7880 break;
7881 case ISCSI_FLASHNODE_HDR_DGST_EN:
7882 rc = sprintf(buf, "%u\n", fnode_conn->hdrdgst_en);
7883 break;
7884 case ISCSI_FLASHNODE_DATA_DGST_EN:
7885 rc = sprintf(buf, "%u\n", fnode_conn->datadgst_en);
7886 break;
7887 case ISCSI_FLASHNODE_IMM_DATA_EN:
7888 rc = sprintf(buf, "%u\n", fnode_sess->imm_data_en);
7889 break;
7890 case ISCSI_FLASHNODE_INITIAL_R2T_EN:
7891 rc = sprintf(buf, "%u\n", fnode_sess->initial_r2t_en);
7892 break;
7893 case ISCSI_FLASHNODE_DATASEQ_INORDER:
7894 rc = sprintf(buf, "%u\n", fnode_sess->dataseq_inorder_en);
7895 break;
7896 case ISCSI_FLASHNODE_PDU_INORDER:
7897 rc = sprintf(buf, "%u\n", fnode_sess->pdu_inorder_en);
7898 break;
7899 case ISCSI_FLASHNODE_CHAP_AUTH_EN:
7900 rc = sprintf(buf, "%u\n", fnode_sess->chap_auth_en);
7901 break;
7902 case ISCSI_FLASHNODE_SNACK_REQ_EN:
7903 rc = sprintf(buf, "%u\n", fnode_conn->snack_req_en);
7904 break;
7905 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN:
7906 rc = sprintf(buf, "%u\n", fnode_sess->discovery_logout_en);
7907 break;
7908 case ISCSI_FLASHNODE_BIDI_CHAP_EN:
7909 rc = sprintf(buf, "%u\n", fnode_sess->bidi_chap_en);
7910 break;
7911 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL:
7912 rc = sprintf(buf, "%u\n", fnode_sess->discovery_auth_optional);
7913 break;
7914 case ISCSI_FLASHNODE_ERL:
7915 rc = sprintf(buf, "%u\n", fnode_sess->erl);
7916 break;
7917 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT:
7918 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_stat);
7919 break;
7920 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE:
7921 rc = sprintf(buf, "%u\n", fnode_conn->tcp_nagle_disable);
7922 break;
7923 case ISCSI_FLASHNODE_TCP_WSF_DISABLE:
7924 rc = sprintf(buf, "%u\n", fnode_conn->tcp_wsf_disable);
7925 break;
7926 case ISCSI_FLASHNODE_TCP_TIMER_SCALE:
7927 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timer_scale);
7928 break;
7929 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN:
7930 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_en);
7931 break;
7932 case ISCSI_FLASHNODE_IP_FRAG_DISABLE:
7933 rc = sprintf(buf, "%u\n", fnode_conn->fragment_disable);
7934 break;
7935 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH:
7936 rc = sprintf(buf, "%u\n", fnode_conn->max_recv_dlength);
7937 break;
7938 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH:
7939 rc = sprintf(buf, "%u\n", fnode_conn->max_xmit_dlength);
7940 break;
7941 case ISCSI_FLASHNODE_FIRST_BURST:
7942 rc = sprintf(buf, "%u\n", fnode_sess->first_burst);
7943 break;
7944 case ISCSI_FLASHNODE_DEF_TIME2WAIT:
7945 rc = sprintf(buf, "%u\n", fnode_sess->time2wait);
7946 break;
7947 case ISCSI_FLASHNODE_DEF_TIME2RETAIN:
7948 rc = sprintf(buf, "%u\n", fnode_sess->time2retain);
7949 break;
7950 case ISCSI_FLASHNODE_MAX_R2T:
7951 rc = sprintf(buf, "%u\n", fnode_sess->max_r2t);
7952 break;
7953 case ISCSI_FLASHNODE_KEEPALIVE_TMO:
7954 rc = sprintf(buf, "%u\n", fnode_conn->keepalive_timeout);
7955 break;
7956 case ISCSI_FLASHNODE_ISID:
7957 rc = sprintf(buf, "%pm\n", fnode_sess->isid);
7958 break;
7959 case ISCSI_FLASHNODE_TSID:
7960 rc = sprintf(buf, "%u\n", fnode_sess->tsid);
7961 break;
7962 case ISCSI_FLASHNODE_PORT:
7963 rc = sprintf(buf, "%d\n", fnode_conn->port);
7964 break;
7965 case ISCSI_FLASHNODE_MAX_BURST:
7966 rc = sprintf(buf, "%u\n", fnode_sess->max_burst);
7967 break;
7968 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO:
7969 rc = sprintf(buf, "%u\n",
7970 fnode_sess->default_taskmgmt_timeout);
7971 break;
7972 case ISCSI_FLASHNODE_IPADDR:
7973 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7974 rc = sprintf(buf, "%pI6\n", fnode_conn->ipaddress);
7975 else
7976 rc = sprintf(buf, "%pI4\n", fnode_conn->ipaddress);
7977 break;
7978 case ISCSI_FLASHNODE_ALIAS:
7979 if (fnode_sess->targetalias)
7980 rc = sprintf(buf, "%s\n", fnode_sess->targetalias);
7981 else
7982 rc = sprintf(buf, "\n");
7983 break;
7984 case ISCSI_FLASHNODE_REDIRECT_IPADDR:
7985 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7986 rc = sprintf(buf, "%pI6\n",
7987 fnode_conn->redirect_ipaddr);
7988 else
7989 rc = sprintf(buf, "%pI4\n",
7990 fnode_conn->redirect_ipaddr);
7991 break;
7992 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE:
7993 rc = sprintf(buf, "%u\n", fnode_conn->max_segment_size);
7994 break;
7995 case ISCSI_FLASHNODE_LOCAL_PORT:
7996 rc = sprintf(buf, "%u\n", fnode_conn->local_port);
7997 break;
7998 case ISCSI_FLASHNODE_IPV4_TOS:
7999 rc = sprintf(buf, "%u\n", fnode_conn->ipv4_tos);
8000 break;
8001 case ISCSI_FLASHNODE_IPV6_TC:
8002 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
8003 rc = sprintf(buf, "%u\n",
8004 fnode_conn->ipv6_traffic_class);
8005 else
8006 rc = sprintf(buf, "\n");
8007 break;
8008 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL:
8009 rc = sprintf(buf, "%u\n", fnode_conn->ipv6_flow_label);
8010 break;
8011 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6:
8012 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
8013 rc = sprintf(buf, "%pI6\n",
8014 fnode_conn->link_local_ipv6_addr);
8015 else
8016 rc = sprintf(buf, "\n");
8017 break;
8018 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX:
8019 rc = sprintf(buf, "%u\n", fnode_sess->discovery_parent_idx);
8020 break;
8021 case ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE:
8022 if (fnode_sess->discovery_parent_type == DDB_ISNS)
8023 parent_type = ISCSI_DISC_PARENT_ISNS;
8024 else if (fnode_sess->discovery_parent_type == DDB_NO_LINK)
8025 parent_type = ISCSI_DISC_PARENT_UNKNOWN;
8026 else if (fnode_sess->discovery_parent_type < MAX_DDB_ENTRIES)
8027 parent_type = ISCSI_DISC_PARENT_SENDTGT;
8028 else
8029 parent_type = ISCSI_DISC_PARENT_UNKNOWN;
8030
8031 rc = sprintf(buf, "%s\n",
8032 iscsi_get_discovery_parent_name(parent_type));
8033 break;
8034 case ISCSI_FLASHNODE_NAME:
8035 if (fnode_sess->targetname)
8036 rc = sprintf(buf, "%s\n", fnode_sess->targetname);
8037 else
8038 rc = sprintf(buf, "\n");
8039 break;
8040 case ISCSI_FLASHNODE_TPGT:
8041 rc = sprintf(buf, "%u\n", fnode_sess->tpgt);
8042 break;
8043 case ISCSI_FLASHNODE_TCP_XMIT_WSF:
8044 rc = sprintf(buf, "%u\n", fnode_conn->tcp_xmit_wsf);
8045 break;
8046 case ISCSI_FLASHNODE_TCP_RECV_WSF:
8047 rc = sprintf(buf, "%u\n", fnode_conn->tcp_recv_wsf);
8048 break;
8049 case ISCSI_FLASHNODE_CHAP_OUT_IDX:
8050 rc = sprintf(buf, "%u\n", fnode_sess->chap_out_idx);
8051 break;
8052 case ISCSI_FLASHNODE_USERNAME:
8053 if (fnode_sess->chap_auth_en) {
8054 qla4xxx_get_uni_chap_at_index(ha,
8055 chap_tbl.name,
8056 chap_tbl.secret,
8057 fnode_sess->chap_out_idx);
8058 rc = sprintf(buf, "%s\n", chap_tbl.name);
8059 } else {
8060 rc = sprintf(buf, "\n");
8061 }
8062 break;
8063 case ISCSI_FLASHNODE_PASSWORD:
8064 if (fnode_sess->chap_auth_en) {
8065 qla4xxx_get_uni_chap_at_index(ha,
8066 chap_tbl.name,
8067 chap_tbl.secret,
8068 fnode_sess->chap_out_idx);
8069 rc = sprintf(buf, "%s\n", chap_tbl.secret);
8070 } else {
8071 rc = sprintf(buf, "\n");
8072 }
8073 break;
8074 case ISCSI_FLASHNODE_STATSN:
8075 rc = sprintf(buf, "%u\n", fnode_conn->statsn);
8076 break;
8077 case ISCSI_FLASHNODE_EXP_STATSN:
8078 rc = sprintf(buf, "%u\n", fnode_conn->exp_statsn);
8079 break;
8080 case ISCSI_FLASHNODE_IS_BOOT_TGT:
8081 rc = sprintf(buf, "%u\n", fnode_sess->is_boot_target);
8082 break;
8083 default:
8084 rc = -ENOSYS;
8085 break;
8086 }
8087
8088 put_device(dev);
8089 return rc;
8090 }
8091
8092 /**
8093 * qla4xxx_sysfs_ddb_set_param - Set parameter for firmware DDB entry
8094 * @fnode_sess: pointer to session attrs of flash ddb entry
8095 * @fnode_conn: pointer to connection attrs of flash ddb entry
8096 * @data: Parameters and their values to update
8097 * @len: len of data
8098 *
8099 * This sets the parameter of flash ddb entry and writes them to flash
8100 **/
8101 static int
8102 qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess,
8103 struct iscsi_bus_flash_conn *fnode_conn,
8104 void *data, int len)
8105 {
8106 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
8107 struct scsi_qla_host *ha = to_qla_host(shost);
8108 struct iscsi_flashnode_param_info *fnode_param;
8109 struct ql4_chap_table chap_tbl;
8110 struct nlattr *attr;
8111 uint16_t chap_out_idx = INVALID_ENTRY;
8112 int rc = QLA_ERROR;
8113 uint32_t rem = len;
8114
8115 memset((void *)&chap_tbl, 0, sizeof(chap_tbl));
8116 nla_for_each_attr(attr, data, len, rem) {
8117 fnode_param = nla_data(attr);
8118
8119 switch (fnode_param->param) {
8120 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6:
8121 fnode_conn->is_fw_assigned_ipv6 = fnode_param->value[0];
8122 break;
8123 case ISCSI_FLASHNODE_PORTAL_TYPE:
8124 memcpy(fnode_sess->portal_type, fnode_param->value,
8125 strlen(fnode_sess->portal_type));
8126 break;
8127 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE:
8128 fnode_sess->auto_snd_tgt_disable =
8129 fnode_param->value[0];
8130 break;
8131 case ISCSI_FLASHNODE_DISCOVERY_SESS:
8132 fnode_sess->discovery_sess = fnode_param->value[0];
8133 break;
8134 case ISCSI_FLASHNODE_ENTRY_EN:
8135 fnode_sess->entry_state = fnode_param->value[0];
8136 break;
8137 case ISCSI_FLASHNODE_HDR_DGST_EN:
8138 fnode_conn->hdrdgst_en = fnode_param->value[0];
8139 break;
8140 case ISCSI_FLASHNODE_DATA_DGST_EN:
8141 fnode_conn->datadgst_en = fnode_param->value[0];
8142 break;
8143 case ISCSI_FLASHNODE_IMM_DATA_EN:
8144 fnode_sess->imm_data_en = fnode_param->value[0];
8145 break;
8146 case ISCSI_FLASHNODE_INITIAL_R2T_EN:
8147 fnode_sess->initial_r2t_en = fnode_param->value[0];
8148 break;
8149 case ISCSI_FLASHNODE_DATASEQ_INORDER:
8150 fnode_sess->dataseq_inorder_en = fnode_param->value[0];
8151 break;
8152 case ISCSI_FLASHNODE_PDU_INORDER:
8153 fnode_sess->pdu_inorder_en = fnode_param->value[0];
8154 break;
8155 case ISCSI_FLASHNODE_CHAP_AUTH_EN:
8156 fnode_sess->chap_auth_en = fnode_param->value[0];
8157 /* Invalidate chap index if chap auth is disabled */
8158 if (!fnode_sess->chap_auth_en)
8159 fnode_sess->chap_out_idx = INVALID_ENTRY;
8160
8161 break;
8162 case ISCSI_FLASHNODE_SNACK_REQ_EN:
8163 fnode_conn->snack_req_en = fnode_param->value[0];
8164 break;
8165 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN:
8166 fnode_sess->discovery_logout_en = fnode_param->value[0];
8167 break;
8168 case ISCSI_FLASHNODE_BIDI_CHAP_EN:
8169 fnode_sess->bidi_chap_en = fnode_param->value[0];
8170 break;
8171 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL:
8172 fnode_sess->discovery_auth_optional =
8173 fnode_param->value[0];
8174 break;
8175 case ISCSI_FLASHNODE_ERL:
8176 fnode_sess->erl = fnode_param->value[0];
8177 break;
8178 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT:
8179 fnode_conn->tcp_timestamp_stat = fnode_param->value[0];
8180 break;
8181 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE:
8182 fnode_conn->tcp_nagle_disable = fnode_param->value[0];
8183 break;
8184 case ISCSI_FLASHNODE_TCP_WSF_DISABLE:
8185 fnode_conn->tcp_wsf_disable = fnode_param->value[0];
8186 break;
8187 case ISCSI_FLASHNODE_TCP_TIMER_SCALE:
8188 fnode_conn->tcp_timer_scale = fnode_param->value[0];
8189 break;
8190 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN:
8191 fnode_conn->tcp_timestamp_en = fnode_param->value[0];
8192 break;
8193 case ISCSI_FLASHNODE_IP_FRAG_DISABLE:
8194 fnode_conn->fragment_disable = fnode_param->value[0];
8195 break;
8196 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH:
8197 fnode_conn->max_recv_dlength =
8198 *(unsigned *)fnode_param->value;
8199 break;
8200 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH:
8201 fnode_conn->max_xmit_dlength =
8202 *(unsigned *)fnode_param->value;
8203 break;
8204 case ISCSI_FLASHNODE_FIRST_BURST:
8205 fnode_sess->first_burst =
8206 *(unsigned *)fnode_param->value;
8207 break;
8208 case ISCSI_FLASHNODE_DEF_TIME2WAIT:
8209 fnode_sess->time2wait = *(uint16_t *)fnode_param->value;
8210 break;
8211 case ISCSI_FLASHNODE_DEF_TIME2RETAIN:
8212 fnode_sess->time2retain =
8213 *(uint16_t *)fnode_param->value;
8214 break;
8215 case ISCSI_FLASHNODE_MAX_R2T:
8216 fnode_sess->max_r2t =
8217 *(uint16_t *)fnode_param->value;
8218 break;
8219 case ISCSI_FLASHNODE_KEEPALIVE_TMO:
8220 fnode_conn->keepalive_timeout =
8221 *(uint16_t *)fnode_param->value;
8222 break;
8223 case ISCSI_FLASHNODE_ISID:
8224 memcpy(fnode_sess->isid, fnode_param->value,
8225 sizeof(fnode_sess->isid));
8226 break;
8227 case ISCSI_FLASHNODE_TSID:
8228 fnode_sess->tsid = *(uint16_t *)fnode_param->value;
8229 break;
8230 case ISCSI_FLASHNODE_PORT:
8231 fnode_conn->port = *(uint16_t *)fnode_param->value;
8232 break;
8233 case ISCSI_FLASHNODE_MAX_BURST:
8234 fnode_sess->max_burst = *(unsigned *)fnode_param->value;
8235 break;
8236 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO:
8237 fnode_sess->default_taskmgmt_timeout =
8238 *(uint16_t *)fnode_param->value;
8239 break;
8240 case ISCSI_FLASHNODE_IPADDR:
8241 memcpy(fnode_conn->ipaddress, fnode_param->value,
8242 IPv6_ADDR_LEN);
8243 break;
8244 case ISCSI_FLASHNODE_ALIAS:
8245 rc = iscsi_switch_str_param(&fnode_sess->targetalias,
8246 (char *)fnode_param->value);
8247 break;
8248 case ISCSI_FLASHNODE_REDIRECT_IPADDR:
8249 memcpy(fnode_conn->redirect_ipaddr, fnode_param->value,
8250 IPv6_ADDR_LEN);
8251 break;
8252 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE:
8253 fnode_conn->max_segment_size =
8254 *(unsigned *)fnode_param->value;
8255 break;
8256 case ISCSI_FLASHNODE_LOCAL_PORT:
8257 fnode_conn->local_port =
8258 *(uint16_t *)fnode_param->value;
8259 break;
8260 case ISCSI_FLASHNODE_IPV4_TOS:
8261 fnode_conn->ipv4_tos = fnode_param->value[0];
8262 break;
8263 case ISCSI_FLASHNODE_IPV6_TC:
8264 fnode_conn->ipv6_traffic_class = fnode_param->value[0];
8265 break;
8266 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL:
8267 fnode_conn->ipv6_flow_label = fnode_param->value[0];
8268 break;
8269 case ISCSI_FLASHNODE_NAME:
8270 rc = iscsi_switch_str_param(&fnode_sess->targetname,
8271 (char *)fnode_param->value);
8272 break;
8273 case ISCSI_FLASHNODE_TPGT:
8274 fnode_sess->tpgt = *(uint16_t *)fnode_param->value;
8275 break;
8276 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6:
8277 memcpy(fnode_conn->link_local_ipv6_addr,
8278 fnode_param->value, IPv6_ADDR_LEN);
8279 break;
8280 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX:
8281 fnode_sess->discovery_parent_idx =
8282 *(uint16_t *)fnode_param->value;
8283 break;
8284 case ISCSI_FLASHNODE_TCP_XMIT_WSF:
8285 fnode_conn->tcp_xmit_wsf =
8286 *(uint8_t *)fnode_param->value;
8287 break;
8288 case ISCSI_FLASHNODE_TCP_RECV_WSF:
8289 fnode_conn->tcp_recv_wsf =
8290 *(uint8_t *)fnode_param->value;
8291 break;
8292 case ISCSI_FLASHNODE_STATSN:
8293 fnode_conn->statsn = *(uint32_t *)fnode_param->value;
8294 break;
8295 case ISCSI_FLASHNODE_EXP_STATSN:
8296 fnode_conn->exp_statsn =
8297 *(uint32_t *)fnode_param->value;
8298 break;
8299 case ISCSI_FLASHNODE_CHAP_OUT_IDX:
8300 chap_out_idx = *(uint16_t *)fnode_param->value;
8301 if (!qla4xxx_get_uni_chap_at_index(ha,
8302 chap_tbl.name,
8303 chap_tbl.secret,
8304 chap_out_idx)) {
8305 fnode_sess->chap_out_idx = chap_out_idx;
8306 /* Enable chap auth if chap index is valid */
8307 fnode_sess->chap_auth_en = QL4_PARAM_ENABLE;
8308 }
8309 break;
8310 default:
8311 ql4_printk(KERN_ERR, ha,
8312 "%s: No such sysfs attribute\n", __func__);
8313 rc = -ENOSYS;
8314 goto exit_set_param;
8315 }
8316 }
8317
8318 rc = qla4xxx_sysfs_ddb_apply(fnode_sess, fnode_conn);
8319
8320 exit_set_param:
8321 return rc;
8322 }
8323
8324 /**
8325 * qla4xxx_sysfs_ddb_delete - Delete firmware DDB entry
8326 * @fnode_sess: pointer to session attrs of flash ddb entry
8327 *
8328 * This invalidates the flash ddb entry at the given index
8329 **/
8330 static int qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess)
8331 {
8332 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
8333 struct scsi_qla_host *ha = to_qla_host(shost);
8334 uint32_t dev_db_start_offset;
8335 uint32_t dev_db_end_offset;
8336 struct dev_db_entry *fw_ddb_entry = NULL;
8337 dma_addr_t fw_ddb_entry_dma;
8338 uint16_t *ddb_cookie = NULL;
8339 size_t ddb_size = 0;
8340 void *pddb = NULL;
8341 int target_id;
8342 int rc = 0;
8343
8344 if (fnode_sess->is_boot_target) {
8345 rc = -EPERM;
8346 DEBUG2(ql4_printk(KERN_ERR, ha,
8347 "%s: Deletion of boot target entry is not permitted.\n",
8348 __func__));
8349 goto exit_ddb_del;
8350 }
8351
8352 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT)
8353 goto sysfs_ddb_del;
8354
8355 if (is_qla40XX(ha)) {
8356 dev_db_start_offset = FLASH_OFFSET_DB_INFO;
8357 dev_db_end_offset = FLASH_OFFSET_DB_END;
8358 dev_db_start_offset += (fnode_sess->target_id *
8359 sizeof(*fw_ddb_entry));
8360 ddb_size = sizeof(*fw_ddb_entry);
8361 } else {
8362 dev_db_start_offset = FLASH_RAW_ACCESS_ADDR +
8363 (ha->hw.flt_region_ddb << 2);
8364 /* flt_ddb_size is DDB table size for both ports
8365 * so divide it by 2 to calculate the offset for second port
8366 */
8367 if (ha->port_num == 1)
8368 dev_db_start_offset += (ha->hw.flt_ddb_size / 2);
8369
8370 dev_db_end_offset = dev_db_start_offset +
8371 (ha->hw.flt_ddb_size / 2);
8372
8373 dev_db_start_offset += (fnode_sess->target_id *
8374 sizeof(*fw_ddb_entry));
8375 dev_db_start_offset += offsetof(struct dev_db_entry, cookie);
8376
8377 ddb_size = sizeof(*ddb_cookie);
8378 }
8379
8380 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: start offset=%u, end offset=%u\n",
8381 __func__, dev_db_start_offset, dev_db_end_offset));
8382
8383 if (dev_db_start_offset > dev_db_end_offset) {
8384 rc = -EIO;
8385 DEBUG2(ql4_printk(KERN_ERR, ha, "%s:Invalid DDB index %u\n",
8386 __func__, fnode_sess->target_id));
8387 goto exit_ddb_del;
8388 }
8389
8390 pddb = dma_alloc_coherent(&ha->pdev->dev, ddb_size,
8391 &fw_ddb_entry_dma, GFP_KERNEL);
8392 if (!pddb) {
8393 rc = -ENOMEM;
8394 DEBUG2(ql4_printk(KERN_ERR, ha,
8395 "%s: Unable to allocate dma buffer\n",
8396 __func__));
8397 goto exit_ddb_del;
8398 }
8399
8400 if (is_qla40XX(ha)) {
8401 fw_ddb_entry = pddb;
8402 memset(fw_ddb_entry, 0, ddb_size);
8403 ddb_cookie = &fw_ddb_entry->cookie;
8404 } else {
8405 ddb_cookie = pddb;
8406 }
8407
8408 /* invalidate the cookie */
8409 *ddb_cookie = 0xFFEE;
8410 qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset,
8411 ddb_size, FLASH_OPT_RMW_COMMIT);
8412
8413 sysfs_ddb_del:
8414 target_id = fnode_sess->target_id;
8415 iscsi_destroy_flashnode_sess(fnode_sess);
8416 ql4_printk(KERN_INFO, ha,
8417 "%s: session and conn entries for flashnode %u of host %lu deleted\n",
8418 __func__, target_id, ha->host_no);
8419 exit_ddb_del:
8420 if (pddb)
8421 dma_free_coherent(&ha->pdev->dev, ddb_size, pddb,
8422 fw_ddb_entry_dma);
8423 return rc;
8424 }
8425
8426 /**
8427 * qla4xxx_sysfs_ddb_export - Create sysfs entries for firmware DDBs
8428 * @ha: pointer to adapter structure
8429 *
8430 * Export the firmware DDB for all send targets and normal targets to sysfs.
8431 **/
8432 int qla4xxx_sysfs_ddb_export(struct scsi_qla_host *ha)
8433 {
8434 struct dev_db_entry *fw_ddb_entry = NULL;
8435 dma_addr_t fw_ddb_entry_dma;
8436 uint16_t max_ddbs;
8437 uint16_t idx = 0;
8438 int ret = QLA_SUCCESS;
8439
8440 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev,
8441 sizeof(*fw_ddb_entry),
8442 &fw_ddb_entry_dma, GFP_KERNEL);
8443 if (!fw_ddb_entry) {
8444 DEBUG2(ql4_printk(KERN_ERR, ha,
8445 "%s: Unable to allocate dma buffer\n",
8446 __func__));
8447 return -ENOMEM;
8448 }
8449
8450 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES :
8451 MAX_DEV_DB_ENTRIES;
8452
8453 for (idx = 0; idx < max_ddbs; idx++) {
8454 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry, fw_ddb_entry_dma,
8455 idx))
8456 continue;
8457
8458 ret = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 0);
8459 if (ret) {
8460 ret = -EIO;
8461 break;
8462 }
8463 }
8464
8465 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry,
8466 fw_ddb_entry_dma);
8467
8468 return ret;
8469 }
8470
8471 static void qla4xxx_sysfs_ddb_remove(struct scsi_qla_host *ha)
8472 {
8473 iscsi_destroy_all_flashnode(ha->host);
8474 }
8475
8476 /**
8477 * qla4xxx_build_ddb_list - Build ddb list and setup sessions
8478 * @ha: pointer to adapter structure
8479 * @is_reset: Is this init path or reset path
8480 *
8481 * Create a list of sendtargets (st) from firmware DDBs, issue send targets
8482 * using connection open, then create the list of normal targets (nt)
8483 * from firmware DDBs. Based on the list of nt setup session and connection
8484 * objects.
8485 **/
8486 void qla4xxx_build_ddb_list(struct scsi_qla_host *ha, int is_reset)
8487 {
8488 uint16_t tmo = 0;
8489 struct list_head list_st, list_nt;
8490 struct qla_ddb_index *st_ddb_idx, *st_ddb_idx_tmp;
8491 unsigned long wtime;
8492
8493 if (!test_bit(AF_LINK_UP, &ha->flags)) {
8494 set_bit(AF_BUILD_DDB_LIST, &ha->flags);
8495 ha->is_reset = is_reset;
8496 return;
8497 }
8498
8499 INIT_LIST_HEAD(&list_st);
8500 INIT_LIST_HEAD(&list_nt);
8501
8502 qla4xxx_build_st_list(ha, &list_st);
8503
8504 /* Before issuing conn open mbox, ensure all IPs states are configured
8505 * Note, conn open fails if IPs are not configured
8506 */
8507 qla4xxx_wait_for_ip_configuration(ha);
8508
8509 /* Go thru the STs and fire the sendtargets by issuing conn open mbx */
8510 list_for_each_entry_safe(st_ddb_idx, st_ddb_idx_tmp, &list_st, list) {
8511 qla4xxx_conn_open(ha, st_ddb_idx->fw_ddb_idx);
8512 }
8513
8514 /* Wait to ensure all sendtargets are done for min 12 sec wait */
8515 tmo = ((ha->def_timeout > LOGIN_TOV) &&
8516 (ha->def_timeout < LOGIN_TOV * 10) ?
8517 ha->def_timeout : LOGIN_TOV);
8518
8519 DEBUG2(ql4_printk(KERN_INFO, ha,
8520 "Default time to wait for build ddb %d\n", tmo));
8521
8522 wtime = jiffies + (HZ * tmo);
8523 do {
8524 if (list_empty(&list_st))
8525 break;
8526
8527 qla4xxx_remove_failed_ddb(ha, &list_st);
8528 schedule_timeout_uninterruptible(HZ / 10);
8529 } while (time_after(wtime, jiffies));
8530
8531
8532 qla4xxx_build_nt_list(ha, &list_nt, &list_st, is_reset);
8533
8534 qla4xxx_free_ddb_list(&list_st);
8535 qla4xxx_free_ddb_list(&list_nt);
8536
8537 qla4xxx_free_ddb_index(ha);
8538 }
8539
8540 /**
8541 * qla4xxx_wait_login_resp_boot_tgt - Wait for iSCSI boot target login
8542 * response.
8543 * @ha: pointer to adapter structure
8544 *
8545 * When the boot entry is normal iSCSI target then DF_BOOT_TGT flag will be
8546 * set in DDB and we will wait for login response of boot targets during
8547 * probe.
8548 **/
8549 static void qla4xxx_wait_login_resp_boot_tgt(struct scsi_qla_host *ha)
8550 {
8551 struct ddb_entry *ddb_entry;
8552 struct dev_db_entry *fw_ddb_entry = NULL;
8553 dma_addr_t fw_ddb_entry_dma;
8554 unsigned long wtime;
8555 uint32_t ddb_state;
8556 int max_ddbs, idx, ret;
8557
8558 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
8559 MAX_DEV_DB_ENTRIES;
8560
8561 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8562 &fw_ddb_entry_dma, GFP_KERNEL);
8563 if (!fw_ddb_entry) {
8564 ql4_printk(KERN_ERR, ha,
8565 "%s: Unable to allocate dma buffer\n", __func__);
8566 goto exit_login_resp;
8567 }
8568
8569 wtime = jiffies + (HZ * BOOT_LOGIN_RESP_TOV);
8570
8571 for (idx = 0; idx < max_ddbs; idx++) {
8572 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
8573 if (ddb_entry == NULL)
8574 continue;
8575
8576 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) {
8577 DEBUG2(ql4_printk(KERN_INFO, ha,
8578 "%s: DDB index [%d]\n", __func__,
8579 ddb_entry->fw_ddb_index));
8580 do {
8581 ret = qla4xxx_get_fwddb_entry(ha,
8582 ddb_entry->fw_ddb_index,
8583 fw_ddb_entry, fw_ddb_entry_dma,
8584 NULL, NULL, &ddb_state, NULL,
8585 NULL, NULL);
8586 if (ret == QLA_ERROR)
8587 goto exit_login_resp;
8588
8589 if ((ddb_state == DDB_DS_SESSION_ACTIVE) ||
8590 (ddb_state == DDB_DS_SESSION_FAILED))
8591 break;
8592
8593 schedule_timeout_uninterruptible(HZ);
8594
8595 } while ((time_after(wtime, jiffies)));
8596
8597 if (!time_after(wtime, jiffies)) {
8598 DEBUG2(ql4_printk(KERN_INFO, ha,
8599 "%s: Login response wait timer expired\n",
8600 __func__));
8601 goto exit_login_resp;
8602 }
8603 }
8604 }
8605
8606 exit_login_resp:
8607 if (fw_ddb_entry)
8608 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8609 fw_ddb_entry, fw_ddb_entry_dma);
8610 }
8611
8612 /**
8613 * qla4xxx_probe_adapter - callback function to probe HBA
8614 * @pdev: pointer to pci_dev structure
8615 * @ent: pointer to pci_device entry
8616 *
8617 * This routine will probe for Qlogic 4xxx iSCSI host adapters.
8618 * It returns zero if successful. It also initializes all data necessary for
8619 * the driver.
8620 **/
8621 static int qla4xxx_probe_adapter(struct pci_dev *pdev,
8622 const struct pci_device_id *ent)
8623 {
8624 int ret = -ENODEV, status;
8625 struct Scsi_Host *host;
8626 struct scsi_qla_host *ha;
8627 uint8_t init_retry_count = 0;
8628 char buf[34];
8629 struct qla4_8xxx_legacy_intr_set *nx_legacy_intr;
8630 uint32_t dev_state;
8631
8632 if (pci_enable_device(pdev))
8633 return -1;
8634
8635 host = iscsi_host_alloc(&qla4xxx_driver_template, sizeof(*ha), 0);
8636 if (host == NULL) {
8637 printk(KERN_WARNING
8638 "qla4xxx: Couldn't allocate host from scsi layer!\n");
8639 goto probe_disable_device;
8640 }
8641
8642 /* Clear our data area */
8643 ha = to_qla_host(host);
8644 memset(ha, 0, sizeof(*ha));
8645
8646 /* Save the information from PCI BIOS. */
8647 ha->pdev = pdev;
8648 ha->host = host;
8649 ha->host_no = host->host_no;
8650 ha->func_num = PCI_FUNC(ha->pdev->devfn);
8651
8652 pci_enable_pcie_error_reporting(pdev);
8653
8654 /* Setup Runtime configurable options */
8655 if (is_qla8022(ha)) {
8656 ha->isp_ops = &qla4_82xx_isp_ops;
8657 ha->reg_tbl = (uint32_t *) qla4_82xx_reg_tbl;
8658 ha->qdr_sn_window = -1;
8659 ha->ddr_mn_window = -1;
8660 ha->curr_window = 255;
8661 nx_legacy_intr = &legacy_intr[ha->func_num];
8662 ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit;
8663 ha->nx_legacy_intr.tgt_status_reg =
8664 nx_legacy_intr->tgt_status_reg;
8665 ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg;
8666 ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg;
8667 } else if (is_qla8032(ha) || is_qla8042(ha)) {
8668 ha->isp_ops = &qla4_83xx_isp_ops;
8669 ha->reg_tbl = (uint32_t *)qla4_83xx_reg_tbl;
8670 } else {
8671 ha->isp_ops = &qla4xxx_isp_ops;
8672 }
8673
8674 if (is_qla80XX(ha)) {
8675 rwlock_init(&ha->hw_lock);
8676 ha->pf_bit = ha->func_num << 16;
8677 /* Set EEH reset type to fundamental if required by hba */
8678 pdev->needs_freset = 1;
8679 }
8680
8681 /* Configure PCI I/O space. */
8682 ret = ha->isp_ops->iospace_config(ha);
8683 if (ret)
8684 goto probe_failed_ioconfig;
8685
8686 ql4_printk(KERN_INFO, ha, "Found an ISP%04x, irq %d, iobase 0x%p\n",
8687 pdev->device, pdev->irq, ha->reg);
8688
8689 qla4xxx_config_dma_addressing(ha);
8690
8691 /* Initialize lists and spinlocks. */
8692 INIT_LIST_HEAD(&ha->free_srb_q);
8693
8694 mutex_init(&ha->mbox_sem);
8695 mutex_init(&ha->chap_sem);
8696 init_completion(&ha->mbx_intr_comp);
8697 init_completion(&ha->disable_acb_comp);
8698 init_completion(&ha->idc_comp);
8699 init_completion(&ha->link_up_comp);
8700
8701 spin_lock_init(&ha->hardware_lock);
8702 spin_lock_init(&ha->work_lock);
8703
8704 /* Initialize work list */
8705 INIT_LIST_HEAD(&ha->work_list);
8706
8707 /* Allocate dma buffers */
8708 if (qla4xxx_mem_alloc(ha)) {
8709 ql4_printk(KERN_WARNING, ha,
8710 "[ERROR] Failed to allocate memory for adapter\n");
8711
8712 ret = -ENOMEM;
8713 goto probe_failed;
8714 }
8715
8716 host->cmd_per_lun = 3;
8717 host->max_channel = 0;
8718 host->max_lun = MAX_LUNS - 1;
8719 host->max_id = MAX_TARGETS;
8720 host->max_cmd_len = IOCB_MAX_CDB_LEN;
8721 host->can_queue = MAX_SRBS ;
8722 host->transportt = qla4xxx_scsi_transport;
8723
8724 pci_set_drvdata(pdev, ha);
8725
8726 ret = scsi_add_host(host, &pdev->dev);
8727 if (ret)
8728 goto probe_failed;
8729
8730 if (is_qla80XX(ha))
8731 qla4_8xxx_get_flash_info(ha);
8732
8733 if (is_qla8032(ha) || is_qla8042(ha)) {
8734 qla4_83xx_read_reset_template(ha);
8735 /*
8736 * NOTE: If ql4dontresethba==1, set IDC_CTRL DONTRESET_BIT0.
8737 * If DONRESET_BIT0 is set, drivers should not set dev_state
8738 * to NEED_RESET. But if NEED_RESET is set, drivers should
8739 * should honor the reset.
8740 */
8741 if (ql4xdontresethba == 1)
8742 qla4_83xx_set_idc_dontreset(ha);
8743 }
8744
8745 /*
8746 * Initialize the Host adapter request/response queues and
8747 * firmware
8748 * NOTE: interrupts enabled upon successful completion
8749 */
8750 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER);
8751
8752 /* Dont retry adapter initialization if IRQ allocation failed */
8753 if (is_qla80XX(ha) && (status == QLA_ERROR))
8754 goto skip_retry_init;
8755
8756 while ((!test_bit(AF_ONLINE, &ha->flags)) &&
8757 init_retry_count++ < MAX_INIT_RETRIES) {
8758
8759 if (is_qla80XX(ha)) {
8760 ha->isp_ops->idc_lock(ha);
8761 dev_state = qla4_8xxx_rd_direct(ha,
8762 QLA8XXX_CRB_DEV_STATE);
8763 ha->isp_ops->idc_unlock(ha);
8764 if (dev_state == QLA8XXX_DEV_FAILED) {
8765 ql4_printk(KERN_WARNING, ha, "%s: don't retry "
8766 "initialize adapter. H/W is in failed state\n",
8767 __func__);
8768 break;
8769 }
8770 }
8771 DEBUG2(printk("scsi: %s: retrying adapter initialization "
8772 "(%d)\n", __func__, init_retry_count));
8773
8774 if (ha->isp_ops->reset_chip(ha) == QLA_ERROR)
8775 continue;
8776
8777 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER);
8778 if (is_qla80XX(ha) && (status == QLA_ERROR)) {
8779 if (qla4_8xxx_check_init_adapter_retry(ha) == QLA_ERROR)
8780 goto skip_retry_init;
8781 }
8782 }
8783
8784 skip_retry_init:
8785 if (!test_bit(AF_ONLINE, &ha->flags)) {
8786 ql4_printk(KERN_WARNING, ha, "Failed to initialize adapter\n");
8787
8788 if ((is_qla8022(ha) && ql4xdontresethba) ||
8789 ((is_qla8032(ha) || is_qla8042(ha)) &&
8790 qla4_83xx_idc_dontreset(ha))) {
8791 /* Put the device in failed state. */
8792 DEBUG2(printk(KERN_ERR "HW STATE: FAILED\n"));
8793 ha->isp_ops->idc_lock(ha);
8794 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
8795 QLA8XXX_DEV_FAILED);
8796 ha->isp_ops->idc_unlock(ha);
8797 }
8798 ret = -ENODEV;
8799 goto remove_host;
8800 }
8801
8802 /* Startup the kernel thread for this host adapter. */
8803 DEBUG2(printk("scsi: %s: Starting kernel thread for "
8804 "qla4xxx_dpc\n", __func__));
8805 sprintf(buf, "qla4xxx_%lu_dpc", ha->host_no);
8806 ha->dpc_thread = create_singlethread_workqueue(buf);
8807 if (!ha->dpc_thread) {
8808 ql4_printk(KERN_WARNING, ha, "Unable to start DPC thread!\n");
8809 ret = -ENODEV;
8810 goto remove_host;
8811 }
8812 INIT_WORK(&ha->dpc_work, qla4xxx_do_dpc);
8813
8814 ha->task_wq = alloc_workqueue("qla4xxx_%lu_task", WQ_MEM_RECLAIM, 1,
8815 ha->host_no);
8816 if (!ha->task_wq) {
8817 ql4_printk(KERN_WARNING, ha, "Unable to start task thread!\n");
8818 ret = -ENODEV;
8819 goto remove_host;
8820 }
8821
8822 /*
8823 * For ISP-8XXX, request_irqs is called in qla4_8xxx_load_risc
8824 * (which is called indirectly by qla4xxx_initialize_adapter),
8825 * so that irqs will be registered after crbinit but before
8826 * mbx_intr_enable.
8827 */
8828 if (is_qla40XX(ha)) {
8829 ret = qla4xxx_request_irqs(ha);
8830 if (ret) {
8831 ql4_printk(KERN_WARNING, ha, "Failed to reserve "
8832 "interrupt %d already in use.\n", pdev->irq);
8833 goto remove_host;
8834 }
8835 }
8836
8837 pci_save_state(ha->pdev);
8838 ha->isp_ops->enable_intrs(ha);
8839
8840 /* Start timer thread. */
8841 qla4xxx_start_timer(ha, 1);
8842
8843 set_bit(AF_INIT_DONE, &ha->flags);
8844
8845 qla4_8xxx_alloc_sysfs_attr(ha);
8846
8847 printk(KERN_INFO
8848 " QLogic iSCSI HBA Driver version: %s\n"
8849 " QLogic ISP%04x @ %s, host#=%ld, fw=%02d.%02d.%02d.%02d\n",
8850 qla4xxx_version_str, ha->pdev->device, pci_name(ha->pdev),
8851 ha->host_no, ha->fw_info.fw_major, ha->fw_info.fw_minor,
8852 ha->fw_info.fw_patch, ha->fw_info.fw_build);
8853
8854 /* Set the driver version */
8855 if (is_qla80XX(ha))
8856 qla4_8xxx_set_param(ha, SET_DRVR_VERSION);
8857
8858 if (qla4xxx_setup_boot_info(ha))
8859 ql4_printk(KERN_ERR, ha,
8860 "%s: No iSCSI boot target configured\n", __func__);
8861
8862 set_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags);
8863 /* Perform the build ddb list and login to each */
8864 qla4xxx_build_ddb_list(ha, INIT_ADAPTER);
8865 iscsi_host_for_each_session(ha->host, qla4xxx_login_flash_ddb);
8866 qla4xxx_wait_login_resp_boot_tgt(ha);
8867
8868 qla4xxx_create_chap_list(ha);
8869
8870 qla4xxx_create_ifaces(ha);
8871 return 0;
8872
8873 remove_host:
8874 scsi_remove_host(ha->host);
8875
8876 probe_failed:
8877 qla4xxx_free_adapter(ha);
8878
8879 probe_failed_ioconfig:
8880 pci_disable_pcie_error_reporting(pdev);
8881 scsi_host_put(ha->host);
8882
8883 probe_disable_device:
8884 pci_disable_device(pdev);
8885
8886 return ret;
8887 }
8888
8889 /**
8890 * qla4xxx_prevent_other_port_reinit - prevent other port from re-initialize
8891 * @ha: pointer to adapter structure
8892 *
8893 * Mark the other ISP-4xxx port to indicate that the driver is being removed,
8894 * so that the other port will not re-initialize while in the process of
8895 * removing the ha due to driver unload or hba hotplug.
8896 **/
8897 static void qla4xxx_prevent_other_port_reinit(struct scsi_qla_host *ha)
8898 {
8899 struct scsi_qla_host *other_ha = NULL;
8900 struct pci_dev *other_pdev = NULL;
8901 int fn = ISP4XXX_PCI_FN_2;
8902
8903 /*iscsi function numbers for ISP4xxx is 1 and 3*/
8904 if (PCI_FUNC(ha->pdev->devfn) & BIT_1)
8905 fn = ISP4XXX_PCI_FN_1;
8906
8907 other_pdev =
8908 pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus),
8909 ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
8910 fn));
8911
8912 /* Get other_ha if other_pdev is valid and state is enable*/
8913 if (other_pdev) {
8914 if (atomic_read(&other_pdev->enable_cnt)) {
8915 other_ha = pci_get_drvdata(other_pdev);
8916 if (other_ha) {
8917 set_bit(AF_HA_REMOVAL, &other_ha->flags);
8918 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: "
8919 "Prevent %s reinit\n", __func__,
8920 dev_name(&other_ha->pdev->dev)));
8921 }
8922 }
8923 pci_dev_put(other_pdev);
8924 }
8925 }
8926
8927 static void qla4xxx_destroy_ddb(struct scsi_qla_host *ha,
8928 struct ddb_entry *ddb_entry)
8929 {
8930 struct dev_db_entry *fw_ddb_entry = NULL;
8931 dma_addr_t fw_ddb_entry_dma;
8932 unsigned long wtime;
8933 uint32_t ddb_state;
8934 int options;
8935 int status;
8936
8937 options = LOGOUT_OPTION_CLOSE_SESSION;
8938 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR) {
8939 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__);
8940 goto clear_ddb;
8941 }
8942
8943 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8944 &fw_ddb_entry_dma, GFP_KERNEL);
8945 if (!fw_ddb_entry) {
8946 ql4_printk(KERN_ERR, ha,
8947 "%s: Unable to allocate dma buffer\n", __func__);
8948 goto clear_ddb;
8949 }
8950
8951 wtime = jiffies + (HZ * LOGOUT_TOV);
8952 do {
8953 status = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
8954 fw_ddb_entry, fw_ddb_entry_dma,
8955 NULL, NULL, &ddb_state, NULL,
8956 NULL, NULL);
8957 if (status == QLA_ERROR)
8958 goto free_ddb;
8959
8960 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) ||
8961 (ddb_state == DDB_DS_SESSION_FAILED))
8962 goto free_ddb;
8963
8964 schedule_timeout_uninterruptible(HZ);
8965 } while ((time_after(wtime, jiffies)));
8966
8967 free_ddb:
8968 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8969 fw_ddb_entry, fw_ddb_entry_dma);
8970 clear_ddb:
8971 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
8972 }
8973
8974 static void qla4xxx_destroy_fw_ddb_session(struct scsi_qla_host *ha)
8975 {
8976 struct ddb_entry *ddb_entry;
8977 int idx;
8978
8979 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
8980
8981 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
8982 if ((ddb_entry != NULL) &&
8983 (ddb_entry->ddb_type == FLASH_DDB)) {
8984
8985 qla4xxx_destroy_ddb(ha, ddb_entry);
8986 /*
8987 * we have decremented the reference count of the driver
8988 * when we setup the session to have the driver unload
8989 * to be seamless without actually destroying the
8990 * session
8991 **/
8992 try_module_get(qla4xxx_iscsi_transport.owner);
8993 iscsi_destroy_endpoint(ddb_entry->conn->ep);
8994 qla4xxx_free_ddb(ha, ddb_entry);
8995 iscsi_session_teardown(ddb_entry->sess);
8996 }
8997 }
8998 }
8999 /**
9000 * qla4xxx_remove_adapter - callback function to remove adapter.
9001 * @pdev: PCI device pointer
9002 **/
9003 static void qla4xxx_remove_adapter(struct pci_dev *pdev)
9004 {
9005 struct scsi_qla_host *ha;
9006
9007 /*
9008 * If the PCI device is disabled then it means probe_adapter had
9009 * failed and resources already cleaned up on probe_adapter exit.
9010 */
9011 if (!pci_is_enabled(pdev))
9012 return;
9013
9014 ha = pci_get_drvdata(pdev);
9015
9016 if (is_qla40XX(ha))
9017 qla4xxx_prevent_other_port_reinit(ha);
9018
9019 /* destroy iface from sysfs */
9020 qla4xxx_destroy_ifaces(ha);
9021
9022 if ((!ql4xdisablesysfsboot) && ha->boot_kset)
9023 iscsi_boot_destroy_kset(ha->boot_kset);
9024
9025 qla4xxx_destroy_fw_ddb_session(ha);
9026 qla4_8xxx_free_sysfs_attr(ha);
9027
9028 qla4xxx_sysfs_ddb_remove(ha);
9029 scsi_remove_host(ha->host);
9030
9031 qla4xxx_free_adapter(ha);
9032
9033 scsi_host_put(ha->host);
9034
9035 pci_disable_pcie_error_reporting(pdev);
9036 pci_disable_device(pdev);
9037 }
9038
9039 /**
9040 * qla4xxx_config_dma_addressing() - Configure OS DMA addressing method.
9041 * @ha: HA context
9042 */
9043 static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha)
9044 {
9045 /* Update our PCI device dma_mask for full 64 bit mask */
9046 if (dma_set_mask_and_coherent(&ha->pdev->dev, DMA_BIT_MASK(64))) {
9047 dev_dbg(&ha->pdev->dev,
9048 "Failed to set 64 bit PCI consistent mask; "
9049 "using 32 bit.\n");
9050 dma_set_mask_and_coherent(&ha->pdev->dev, DMA_BIT_MASK(32));
9051 }
9052 }
9053
9054 static int qla4xxx_slave_alloc(struct scsi_device *sdev)
9055 {
9056 struct iscsi_cls_session *cls_sess;
9057 struct iscsi_session *sess;
9058 struct ddb_entry *ddb;
9059 int queue_depth = QL4_DEF_QDEPTH;
9060
9061 cls_sess = starget_to_session(sdev->sdev_target);
9062 sess = cls_sess->dd_data;
9063 ddb = sess->dd_data;
9064
9065 sdev->hostdata = ddb;
9066
9067 if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU)
9068 queue_depth = ql4xmaxqdepth;
9069
9070 scsi_change_queue_depth(sdev, queue_depth);
9071 return 0;
9072 }
9073
9074 /**
9075 * qla4xxx_del_from_active_array - returns an active srb
9076 * @ha: Pointer to host adapter structure.
9077 * @index: index into the active_array
9078 *
9079 * This routine removes and returns the srb at the specified index
9080 **/
9081 struct srb *qla4xxx_del_from_active_array(struct scsi_qla_host *ha,
9082 uint32_t index)
9083 {
9084 struct srb *srb = NULL;
9085 struct scsi_cmnd *cmd = NULL;
9086
9087 cmd = scsi_host_find_tag(ha->host, index);
9088 if (!cmd)
9089 return srb;
9090
9091 srb = (struct srb *)CMD_SP(cmd);
9092 if (!srb)
9093 return srb;
9094
9095 /* update counters */
9096 if (srb->flags & SRB_DMA_VALID) {
9097 ha->iocb_cnt -= srb->iocb_cnt;
9098 if (srb->cmd)
9099 srb->cmd->host_scribble =
9100 (unsigned char *)(unsigned long) MAX_SRBS;
9101 }
9102 return srb;
9103 }
9104
9105 /**
9106 * qla4xxx_eh_wait_on_command - waits for command to be returned by firmware
9107 * @ha: Pointer to host adapter structure.
9108 * @cmd: Scsi Command to wait on.
9109 *
9110 * This routine waits for the command to be returned by the Firmware
9111 * for some max time.
9112 **/
9113 static int qla4xxx_eh_wait_on_command(struct scsi_qla_host *ha,
9114 struct scsi_cmnd *cmd)
9115 {
9116 int done = 0;
9117 struct srb *rp;
9118 uint32_t max_wait_time = EH_WAIT_CMD_TOV;
9119 int ret = SUCCESS;
9120
9121 /* Dont wait on command if PCI error is being handled
9122 * by PCI AER driver
9123 */
9124 if (unlikely(pci_channel_offline(ha->pdev)) ||
9125 (test_bit(AF_EEH_BUSY, &ha->flags))) {
9126 ql4_printk(KERN_WARNING, ha, "scsi%ld: Return from %s\n",
9127 ha->host_no, __func__);
9128 return ret;
9129 }
9130
9131 do {
9132 /* Checking to see if its returned to OS */
9133 rp = (struct srb *) CMD_SP(cmd);
9134 if (rp == NULL) {
9135 done++;
9136 break;
9137 }
9138
9139 msleep(2000);
9140 } while (max_wait_time--);
9141
9142 return done;
9143 }
9144
9145 /**
9146 * qla4xxx_wait_for_hba_online - waits for HBA to come online
9147 * @ha: Pointer to host adapter structure
9148 **/
9149 static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha)
9150 {
9151 unsigned long wait_online;
9152
9153 wait_online = jiffies + (HBA_ONLINE_TOV * HZ);
9154 while (time_before(jiffies, wait_online)) {
9155
9156 if (adapter_up(ha))
9157 return QLA_SUCCESS;
9158
9159 msleep(2000);
9160 }
9161
9162 return QLA_ERROR;
9163 }
9164
9165 /**
9166 * qla4xxx_eh_wait_for_commands - wait for active cmds to finish.
9167 * @ha: pointer to HBA
9168 * @stgt: pointer to SCSI target
9169 * @sdev: pointer to SCSI device
9170 *
9171 * This function waits for all outstanding commands to a lun to complete. It
9172 * returns 0 if all pending commands are returned and 1 otherwise.
9173 **/
9174 static int qla4xxx_eh_wait_for_commands(struct scsi_qla_host *ha,
9175 struct scsi_target *stgt,
9176 struct scsi_device *sdev)
9177 {
9178 int cnt;
9179 int status = 0;
9180 struct scsi_cmnd *cmd;
9181
9182 /*
9183 * Waiting for all commands for the designated target or dev
9184 * in the active array
9185 */
9186 for (cnt = 0; cnt < ha->host->can_queue; cnt++) {
9187 cmd = scsi_host_find_tag(ha->host, cnt);
9188 if (cmd && stgt == scsi_target(cmd->device) &&
9189 (!sdev || sdev == cmd->device)) {
9190 if (!qla4xxx_eh_wait_on_command(ha, cmd)) {
9191 status++;
9192 break;
9193 }
9194 }
9195 }
9196 return status;
9197 }
9198
9199 /**
9200 * qla4xxx_eh_abort - callback for abort task.
9201 * @cmd: Pointer to Linux's SCSI command structure
9202 *
9203 * This routine is called by the Linux OS to abort the specified
9204 * command.
9205 **/
9206 static int qla4xxx_eh_abort(struct scsi_cmnd *cmd)
9207 {
9208 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
9209 unsigned int id = cmd->device->id;
9210 uint64_t lun = cmd->device->lun;
9211 unsigned long flags;
9212 struct srb *srb = NULL;
9213 int ret = SUCCESS;
9214 int wait = 0;
9215 int rval;
9216
9217 ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%llu: Abort command issued cmd=%p, cdb=0x%x\n",
9218 ha->host_no, id, lun, cmd, cmd->cmnd[0]);
9219
9220 rval = qla4xxx_isp_check_reg(ha);
9221 if (rval != QLA_SUCCESS) {
9222 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n");
9223 return FAILED;
9224 }
9225
9226 spin_lock_irqsave(&ha->hardware_lock, flags);
9227 srb = (struct srb *) CMD_SP(cmd);
9228 if (!srb) {
9229 spin_unlock_irqrestore(&ha->hardware_lock, flags);
9230 ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%llu: Specified command has already completed.\n",
9231 ha->host_no, id, lun);
9232 return SUCCESS;
9233 }
9234 kref_get(&srb->srb_ref);
9235 spin_unlock_irqrestore(&ha->hardware_lock, flags);
9236
9237 if (qla4xxx_abort_task(ha, srb) != QLA_SUCCESS) {
9238 DEBUG3(printk("scsi%ld:%d:%llu: Abort_task mbx failed.\n",
9239 ha->host_no, id, lun));
9240 ret = FAILED;
9241 } else {
9242 DEBUG3(printk("scsi%ld:%d:%llu: Abort_task mbx success.\n",
9243 ha->host_no, id, lun));
9244 wait = 1;
9245 }
9246
9247 kref_put(&srb->srb_ref, qla4xxx_srb_compl);
9248
9249 /* Wait for command to complete */
9250 if (wait) {
9251 if (!qla4xxx_eh_wait_on_command(ha, cmd)) {
9252 DEBUG2(printk("scsi%ld:%d:%llu: Abort handler timed out\n",
9253 ha->host_no, id, lun));
9254 ret = FAILED;
9255 }
9256 }
9257
9258 ql4_printk(KERN_INFO, ha,
9259 "scsi%ld:%d:%llu: Abort command - %s\n",
9260 ha->host_no, id, lun, (ret == SUCCESS) ? "succeeded" : "failed");
9261
9262 return ret;
9263 }
9264
9265 /**
9266 * qla4xxx_eh_device_reset - callback for target reset.
9267 * @cmd: Pointer to Linux's SCSI command structure
9268 *
9269 * This routine is called by the Linux OS to reset all luns on the
9270 * specified target.
9271 **/
9272 static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd)
9273 {
9274 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
9275 struct ddb_entry *ddb_entry = cmd->device->hostdata;
9276 int ret = FAILED, stat;
9277 int rval;
9278
9279 if (!ddb_entry)
9280 return ret;
9281
9282 ret = iscsi_block_scsi_eh(cmd);
9283 if (ret)
9284 return ret;
9285 ret = FAILED;
9286
9287 ql4_printk(KERN_INFO, ha,
9288 "scsi%ld:%d:%d:%llu: DEVICE RESET ISSUED.\n", ha->host_no,
9289 cmd->device->channel, cmd->device->id, cmd->device->lun);
9290
9291 DEBUG2(printk(KERN_INFO
9292 "scsi%ld: DEVICE_RESET cmd=%p jiffies = 0x%lx, to=%x,"
9293 "dpc_flags=%lx, status=%x allowed=%d\n", ha->host_no,
9294 cmd, jiffies, cmd->request->timeout / HZ,
9295 ha->dpc_flags, cmd->result, cmd->allowed));
9296
9297 rval = qla4xxx_isp_check_reg(ha);
9298 if (rval != QLA_SUCCESS) {
9299 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n");
9300 return FAILED;
9301 }
9302
9303 /* FIXME: wait for hba to go online */
9304 stat = qla4xxx_reset_lun(ha, ddb_entry, cmd->device->lun);
9305 if (stat != QLA_SUCCESS) {
9306 ql4_printk(KERN_INFO, ha, "DEVICE RESET FAILED. %d\n", stat);
9307 goto eh_dev_reset_done;
9308 }
9309
9310 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device),
9311 cmd->device)) {
9312 ql4_printk(KERN_INFO, ha,
9313 "DEVICE RESET FAILED - waiting for "
9314 "commands.\n");
9315 goto eh_dev_reset_done;
9316 }
9317
9318 /* Send marker. */
9319 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun,
9320 MM_LUN_RESET) != QLA_SUCCESS)
9321 goto eh_dev_reset_done;
9322
9323 ql4_printk(KERN_INFO, ha,
9324 "scsi(%ld:%d:%d:%llu): DEVICE RESET SUCCEEDED.\n",
9325 ha->host_no, cmd->device->channel, cmd->device->id,
9326 cmd->device->lun);
9327
9328 ret = SUCCESS;
9329
9330 eh_dev_reset_done:
9331
9332 return ret;
9333 }
9334
9335 /**
9336 * qla4xxx_eh_target_reset - callback for target reset.
9337 * @cmd: Pointer to Linux's SCSI command structure
9338 *
9339 * This routine is called by the Linux OS to reset the target.
9340 **/
9341 static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd)
9342 {
9343 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
9344 struct ddb_entry *ddb_entry = cmd->device->hostdata;
9345 int stat, ret;
9346 int rval;
9347
9348 if (!ddb_entry)
9349 return FAILED;
9350
9351 ret = iscsi_block_scsi_eh(cmd);
9352 if (ret)
9353 return ret;
9354
9355 starget_printk(KERN_INFO, scsi_target(cmd->device),
9356 "WARM TARGET RESET ISSUED.\n");
9357
9358 DEBUG2(printk(KERN_INFO
9359 "scsi%ld: TARGET_DEVICE_RESET cmd=%p jiffies = 0x%lx, "
9360 "to=%x,dpc_flags=%lx, status=%x allowed=%d\n",
9361 ha->host_no, cmd, jiffies, cmd->request->timeout / HZ,
9362 ha->dpc_flags, cmd->result, cmd->allowed));
9363
9364 rval = qla4xxx_isp_check_reg(ha);
9365 if (rval != QLA_SUCCESS) {
9366 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n");
9367 return FAILED;
9368 }
9369
9370 stat = qla4xxx_reset_target(ha, ddb_entry);
9371 if (stat != QLA_SUCCESS) {
9372 starget_printk(KERN_INFO, scsi_target(cmd->device),
9373 "WARM TARGET RESET FAILED.\n");
9374 return FAILED;
9375 }
9376
9377 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device),
9378 NULL)) {
9379 starget_printk(KERN_INFO, scsi_target(cmd->device),
9380 "WARM TARGET DEVICE RESET FAILED - "
9381 "waiting for commands.\n");
9382 return FAILED;
9383 }
9384
9385 /* Send marker. */
9386 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun,
9387 MM_TGT_WARM_RESET) != QLA_SUCCESS) {
9388 starget_printk(KERN_INFO, scsi_target(cmd->device),
9389 "WARM TARGET DEVICE RESET FAILED - "
9390 "marker iocb failed.\n");
9391 return FAILED;
9392 }
9393
9394 starget_printk(KERN_INFO, scsi_target(cmd->device),
9395 "WARM TARGET RESET SUCCEEDED.\n");
9396 return SUCCESS;
9397 }
9398
9399 /**
9400 * qla4xxx_is_eh_active - check if error handler is running
9401 * @shost: Pointer to SCSI Host struct
9402 *
9403 * This routine finds that if reset host is called in EH
9404 * scenario or from some application like sg_reset
9405 **/
9406 static int qla4xxx_is_eh_active(struct Scsi_Host *shost)
9407 {
9408 if (shost->shost_state == SHOST_RECOVERY)
9409 return 1;
9410 return 0;
9411 }
9412
9413 /**
9414 * qla4xxx_eh_host_reset - kernel callback
9415 * @cmd: Pointer to Linux's SCSI command structure
9416 *
9417 * This routine is invoked by the Linux kernel to perform fatal error
9418 * recovery on the specified adapter.
9419 **/
9420 static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd)
9421 {
9422 int return_status = FAILED;
9423 struct scsi_qla_host *ha;
9424 int rval;
9425
9426 ha = to_qla_host(cmd->device->host);
9427
9428 rval = qla4xxx_isp_check_reg(ha);
9429 if (rval != QLA_SUCCESS) {
9430 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n");
9431 return FAILED;
9432 }
9433
9434 if ((is_qla8032(ha) || is_qla8042(ha)) && ql4xdontresethba)
9435 qla4_83xx_set_idc_dontreset(ha);
9436
9437 /*
9438 * For ISP8324 and ISP8042, if IDC_CTRL DONTRESET_BIT0 is set by other
9439 * protocol drivers, we should not set device_state to NEED_RESET
9440 */
9441 if (ql4xdontresethba ||
9442 ((is_qla8032(ha) || is_qla8042(ha)) &&
9443 qla4_83xx_idc_dontreset(ha))) {
9444 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n",
9445 ha->host_no, __func__));
9446
9447 /* Clear outstanding srb in queues */
9448 if (qla4xxx_is_eh_active(cmd->device->host))
9449 qla4xxx_abort_active_cmds(ha, DID_ABORT << 16);
9450
9451 return FAILED;
9452 }
9453
9454 ql4_printk(KERN_INFO, ha,
9455 "scsi(%ld:%d:%d:%llu): HOST RESET ISSUED.\n", ha->host_no,
9456 cmd->device->channel, cmd->device->id, cmd->device->lun);
9457
9458 if (qla4xxx_wait_for_hba_online(ha) != QLA_SUCCESS) {
9459 DEBUG2(printk("scsi%ld:%d: %s: Unable to reset host. Adapter "
9460 "DEAD.\n", ha->host_no, cmd->device->channel,
9461 __func__));
9462
9463 return FAILED;
9464 }
9465
9466 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
9467 if (is_qla80XX(ha))
9468 set_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
9469 else
9470 set_bit(DPC_RESET_HA, &ha->dpc_flags);
9471 }
9472
9473 if (qla4xxx_recover_adapter(ha) == QLA_SUCCESS)
9474 return_status = SUCCESS;
9475
9476 ql4_printk(KERN_INFO, ha, "HOST RESET %s.\n",
9477 return_status == FAILED ? "FAILED" : "SUCCEEDED");
9478
9479 return return_status;
9480 }
9481
9482 static int qla4xxx_context_reset(struct scsi_qla_host *ha)
9483 {
9484 uint32_t mbox_cmd[MBOX_REG_COUNT];
9485 uint32_t mbox_sts[MBOX_REG_COUNT];
9486 struct addr_ctrl_blk_def *acb = NULL;
9487 uint32_t acb_len = sizeof(struct addr_ctrl_blk_def);
9488 int rval = QLA_SUCCESS;
9489 dma_addr_t acb_dma;
9490
9491 acb = dma_alloc_coherent(&ha->pdev->dev,
9492 sizeof(struct addr_ctrl_blk_def),
9493 &acb_dma, GFP_KERNEL);
9494 if (!acb) {
9495 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc acb\n",
9496 __func__);
9497 rval = -ENOMEM;
9498 goto exit_port_reset;
9499 }
9500
9501 memset(acb, 0, acb_len);
9502
9503 rval = qla4xxx_get_acb(ha, acb_dma, PRIMARI_ACB, acb_len);
9504 if (rval != QLA_SUCCESS) {
9505 rval = -EIO;
9506 goto exit_free_acb;
9507 }
9508
9509 rval = qla4xxx_disable_acb(ha);
9510 if (rval != QLA_SUCCESS) {
9511 rval = -EIO;
9512 goto exit_free_acb;
9513 }
9514
9515 wait_for_completion_timeout(&ha->disable_acb_comp,
9516 DISABLE_ACB_TOV * HZ);
9517
9518 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], acb_dma);
9519 if (rval != QLA_SUCCESS) {
9520 rval = -EIO;
9521 goto exit_free_acb;
9522 }
9523
9524 exit_free_acb:
9525 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk_def),
9526 acb, acb_dma);
9527 exit_port_reset:
9528 DEBUG2(ql4_printk(KERN_INFO, ha, "%s %s\n", __func__,
9529 rval == QLA_SUCCESS ? "SUCCEEDED" : "FAILED"));
9530 return rval;
9531 }
9532
9533 static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type)
9534 {
9535 struct scsi_qla_host *ha = to_qla_host(shost);
9536 int rval = QLA_SUCCESS;
9537 uint32_t idc_ctrl;
9538
9539 if (ql4xdontresethba) {
9540 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Don't Reset HBA\n",
9541 __func__));
9542 rval = -EPERM;
9543 goto exit_host_reset;
9544 }
9545
9546 if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
9547 goto recover_adapter;
9548
9549 switch (reset_type) {
9550 case SCSI_ADAPTER_RESET:
9551 set_bit(DPC_RESET_HA, &ha->dpc_flags);
9552 break;
9553 case SCSI_FIRMWARE_RESET:
9554 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
9555 if (is_qla80XX(ha))
9556 /* set firmware context reset */
9557 set_bit(DPC_RESET_HA_FW_CONTEXT,
9558 &ha->dpc_flags);
9559 else {
9560 rval = qla4xxx_context_reset(ha);
9561 goto exit_host_reset;
9562 }
9563 }
9564 break;
9565 }
9566
9567 recover_adapter:
9568 /* For ISP8324 and ISP8042 set graceful reset bit in IDC_DRV_CTRL if
9569 * reset is issued by application */
9570 if ((is_qla8032(ha) || is_qla8042(ha)) &&
9571 test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
9572 idc_ctrl = qla4_83xx_rd_reg(ha, QLA83XX_IDC_DRV_CTRL);
9573 qla4_83xx_wr_reg(ha, QLA83XX_IDC_DRV_CTRL,
9574 (idc_ctrl | GRACEFUL_RESET_BIT1));
9575 }
9576
9577 rval = qla4xxx_recover_adapter(ha);
9578 if (rval != QLA_SUCCESS) {
9579 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: recover adapter fail\n",
9580 __func__));
9581 rval = -EIO;
9582 }
9583
9584 exit_host_reset:
9585 return rval;
9586 }
9587
9588 /* PCI AER driver recovers from all correctable errors w/o
9589 * driver intervention. For uncorrectable errors PCI AER
9590 * driver calls the following device driver's callbacks
9591 *
9592 * - Fatal Errors - link_reset
9593 * - Non-Fatal Errors - driver's error_detected() which
9594 * returns CAN_RECOVER, NEED_RESET or DISCONNECT.
9595 *
9596 * PCI AER driver calls
9597 * CAN_RECOVER - driver's mmio_enabled(), mmio_enabled()
9598 * returns RECOVERED or NEED_RESET if fw_hung
9599 * NEED_RESET - driver's slot_reset()
9600 * DISCONNECT - device is dead & cannot recover
9601 * RECOVERED - driver's resume()
9602 */
9603 static pci_ers_result_t
9604 qla4xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
9605 {
9606 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9607
9608 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: error detected:state %x\n",
9609 ha->host_no, __func__, state);
9610
9611 if (!is_aer_supported(ha))
9612 return PCI_ERS_RESULT_NONE;
9613
9614 switch (state) {
9615 case pci_channel_io_normal:
9616 clear_bit(AF_EEH_BUSY, &ha->flags);
9617 return PCI_ERS_RESULT_CAN_RECOVER;
9618 case pci_channel_io_frozen:
9619 set_bit(AF_EEH_BUSY, &ha->flags);
9620 qla4xxx_mailbox_premature_completion(ha);
9621 qla4xxx_free_irqs(ha);
9622 pci_disable_device(pdev);
9623 /* Return back all IOs */
9624 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
9625 return PCI_ERS_RESULT_NEED_RESET;
9626 case pci_channel_io_perm_failure:
9627 set_bit(AF_EEH_BUSY, &ha->flags);
9628 set_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags);
9629 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
9630 return PCI_ERS_RESULT_DISCONNECT;
9631 }
9632 return PCI_ERS_RESULT_NEED_RESET;
9633 }
9634
9635 /**
9636 * qla4xxx_pci_mmio_enabled() gets called if
9637 * qla4xxx_pci_error_detected() returns PCI_ERS_RESULT_CAN_RECOVER
9638 * and read/write to the device still works.
9639 * @pdev: PCI device pointer
9640 **/
9641 static pci_ers_result_t
9642 qla4xxx_pci_mmio_enabled(struct pci_dev *pdev)
9643 {
9644 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9645
9646 if (!is_aer_supported(ha))
9647 return PCI_ERS_RESULT_NONE;
9648
9649 return PCI_ERS_RESULT_RECOVERED;
9650 }
9651
9652 static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha)
9653 {
9654 uint32_t rval = QLA_ERROR;
9655 int fn;
9656 struct pci_dev *other_pdev = NULL;
9657
9658 ql4_printk(KERN_WARNING, ha, "scsi%ld: In %s\n", ha->host_no, __func__);
9659
9660 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
9661
9662 if (test_bit(AF_ONLINE, &ha->flags)) {
9663 clear_bit(AF_ONLINE, &ha->flags);
9664 clear_bit(AF_LINK_UP, &ha->flags);
9665 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session);
9666 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
9667 }
9668
9669 fn = PCI_FUNC(ha->pdev->devfn);
9670 if (is_qla8022(ha)) {
9671 while (fn > 0) {
9672 fn--;
9673 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Finding PCI device at func %x\n",
9674 ha->host_no, __func__, fn);
9675 /* Get the pci device given the domain, bus,
9676 * slot/function number */
9677 other_pdev = pci_get_domain_bus_and_slot(
9678 pci_domain_nr(ha->pdev->bus),
9679 ha->pdev->bus->number,
9680 PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
9681 fn));
9682
9683 if (!other_pdev)
9684 continue;
9685
9686 if (atomic_read(&other_pdev->enable_cnt)) {
9687 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Found PCI func in enabled state%x\n",
9688 ha->host_no, __func__, fn);
9689 pci_dev_put(other_pdev);
9690 break;
9691 }
9692 pci_dev_put(other_pdev);
9693 }
9694 } else {
9695 /* this case is meant for ISP83xx/ISP84xx only */
9696 if (qla4_83xx_can_perform_reset(ha)) {
9697 /* reset fn as iSCSI is going to perform the reset */
9698 fn = 0;
9699 }
9700 }
9701
9702 /* The first function on the card, the reset owner will
9703 * start & initialize the firmware. The other functions
9704 * on the card will reset the firmware context
9705 */
9706 if (!fn) {
9707 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn being reset "
9708 "0x%x is the owner\n", ha->host_no, __func__,
9709 ha->pdev->devfn);
9710
9711 ha->isp_ops->idc_lock(ha);
9712 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9713 QLA8XXX_DEV_COLD);
9714 ha->isp_ops->idc_unlock(ha);
9715
9716 rval = qla4_8xxx_update_idc_reg(ha);
9717 if (rval == QLA_ERROR) {
9718 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: FAILED\n",
9719 ha->host_no, __func__);
9720 ha->isp_ops->idc_lock(ha);
9721 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9722 QLA8XXX_DEV_FAILED);
9723 ha->isp_ops->idc_unlock(ha);
9724 goto exit_error_recovery;
9725 }
9726
9727 clear_bit(AF_FW_RECOVERY, &ha->flags);
9728 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
9729
9730 if (rval != QLA_SUCCESS) {
9731 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: "
9732 "FAILED\n", ha->host_no, __func__);
9733 qla4xxx_free_irqs(ha);
9734 ha->isp_ops->idc_lock(ha);
9735 qla4_8xxx_clear_drv_active(ha);
9736 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9737 QLA8XXX_DEV_FAILED);
9738 ha->isp_ops->idc_unlock(ha);
9739 } else {
9740 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: "
9741 "READY\n", ha->host_no, __func__);
9742 ha->isp_ops->idc_lock(ha);
9743 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9744 QLA8XXX_DEV_READY);
9745 /* Clear driver state register */
9746 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_STATE, 0);
9747 qla4_8xxx_set_drv_active(ha);
9748 ha->isp_ops->idc_unlock(ha);
9749 ha->isp_ops->enable_intrs(ha);
9750 }
9751 } else {
9752 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn 0x%x is not "
9753 "the reset owner\n", ha->host_no, __func__,
9754 ha->pdev->devfn);
9755 if ((qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE) ==
9756 QLA8XXX_DEV_READY)) {
9757 clear_bit(AF_FW_RECOVERY, &ha->flags);
9758 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
9759 if (rval == QLA_SUCCESS)
9760 ha->isp_ops->enable_intrs(ha);
9761 else
9762 qla4xxx_free_irqs(ha);
9763
9764 ha->isp_ops->idc_lock(ha);
9765 qla4_8xxx_set_drv_active(ha);
9766 ha->isp_ops->idc_unlock(ha);
9767 }
9768 }
9769 exit_error_recovery:
9770 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
9771 return rval;
9772 }
9773
9774 static pci_ers_result_t
9775 qla4xxx_pci_slot_reset(struct pci_dev *pdev)
9776 {
9777 pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
9778 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9779 int rc;
9780
9781 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: slot_reset\n",
9782 ha->host_no, __func__);
9783
9784 if (!is_aer_supported(ha))
9785 return PCI_ERS_RESULT_NONE;
9786
9787 /* Restore the saved state of PCIe device -
9788 * BAR registers, PCI Config space, PCIX, MSI,
9789 * IOV states
9790 */
9791 pci_restore_state(pdev);
9792
9793 /* pci_restore_state() clears the saved_state flag of the device
9794 * save restored state which resets saved_state flag
9795 */
9796 pci_save_state(pdev);
9797
9798 /* Initialize device or resume if in suspended state */
9799 rc = pci_enable_device(pdev);
9800 if (rc) {
9801 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Can't re-enable "
9802 "device after reset\n", ha->host_no, __func__);
9803 goto exit_slot_reset;
9804 }
9805
9806 ha->isp_ops->disable_intrs(ha);
9807
9808 if (is_qla80XX(ha)) {
9809 if (qla4_8xxx_error_recovery(ha) == QLA_SUCCESS) {
9810 ret = PCI_ERS_RESULT_RECOVERED;
9811 goto exit_slot_reset;
9812 } else
9813 goto exit_slot_reset;
9814 }
9815
9816 exit_slot_reset:
9817 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Return=%x\n"
9818 "device after reset\n", ha->host_no, __func__, ret);
9819 return ret;
9820 }
9821
9822 static void
9823 qla4xxx_pci_resume(struct pci_dev *pdev)
9824 {
9825 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9826 int ret;
9827
9828 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: pci_resume\n",
9829 ha->host_no, __func__);
9830
9831 ret = qla4xxx_wait_for_hba_online(ha);
9832 if (ret != QLA_SUCCESS) {
9833 ql4_printk(KERN_ERR, ha, "scsi%ld: %s: the device failed to "
9834 "resume I/O from slot/link_reset\n", ha->host_no,
9835 __func__);
9836 }
9837
9838 clear_bit(AF_EEH_BUSY, &ha->flags);
9839 }
9840
9841 static const struct pci_error_handlers qla4xxx_err_handler = {
9842 .error_detected = qla4xxx_pci_error_detected,
9843 .mmio_enabled = qla4xxx_pci_mmio_enabled,
9844 .slot_reset = qla4xxx_pci_slot_reset,
9845 .resume = qla4xxx_pci_resume,
9846 };
9847
9848 static struct pci_device_id qla4xxx_pci_tbl[] = {
9849 {
9850 .vendor = PCI_VENDOR_ID_QLOGIC,
9851 .device = PCI_DEVICE_ID_QLOGIC_ISP4010,
9852 .subvendor = PCI_ANY_ID,
9853 .subdevice = PCI_ANY_ID,
9854 },
9855 {
9856 .vendor = PCI_VENDOR_ID_QLOGIC,
9857 .device = PCI_DEVICE_ID_QLOGIC_ISP4022,
9858 .subvendor = PCI_ANY_ID,
9859 .subdevice = PCI_ANY_ID,
9860 },
9861 {
9862 .vendor = PCI_VENDOR_ID_QLOGIC,
9863 .device = PCI_DEVICE_ID_QLOGIC_ISP4032,
9864 .subvendor = PCI_ANY_ID,
9865 .subdevice = PCI_ANY_ID,
9866 },
9867 {
9868 .vendor = PCI_VENDOR_ID_QLOGIC,
9869 .device = PCI_DEVICE_ID_QLOGIC_ISP8022,
9870 .subvendor = PCI_ANY_ID,
9871 .subdevice = PCI_ANY_ID,
9872 },
9873 {
9874 .vendor = PCI_VENDOR_ID_QLOGIC,
9875 .device = PCI_DEVICE_ID_QLOGIC_ISP8324,
9876 .subvendor = PCI_ANY_ID,
9877 .subdevice = PCI_ANY_ID,
9878 },
9879 {
9880 .vendor = PCI_VENDOR_ID_QLOGIC,
9881 .device = PCI_DEVICE_ID_QLOGIC_ISP8042,
9882 .subvendor = PCI_ANY_ID,
9883 .subdevice = PCI_ANY_ID,
9884 },
9885 {0, 0},
9886 };
9887 MODULE_DEVICE_TABLE(pci, qla4xxx_pci_tbl);
9888
9889 static struct pci_driver qla4xxx_pci_driver = {
9890 .name = DRIVER_NAME,
9891 .id_table = qla4xxx_pci_tbl,
9892 .probe = qla4xxx_probe_adapter,
9893 .remove = qla4xxx_remove_adapter,
9894 .err_handler = &qla4xxx_err_handler,
9895 };
9896
9897 static int __init qla4xxx_module_init(void)
9898 {
9899 int ret;
9900
9901 if (ql4xqfulltracking)
9902 qla4xxx_driver_template.track_queue_depth = 1;
9903
9904 /* Allocate cache for SRBs. */
9905 srb_cachep = kmem_cache_create("qla4xxx_srbs", sizeof(struct srb), 0,
9906 SLAB_HWCACHE_ALIGN, NULL);
9907 if (srb_cachep == NULL) {
9908 printk(KERN_ERR
9909 "%s: Unable to allocate SRB cache..."
9910 "Failing load!\n", DRIVER_NAME);
9911 ret = -ENOMEM;
9912 goto no_srp_cache;
9913 }
9914
9915 /* Derive version string. */
9916 strcpy(qla4xxx_version_str, QLA4XXX_DRIVER_VERSION);
9917 if (ql4xextended_error_logging)
9918 strcat(qla4xxx_version_str, "-debug");
9919
9920 qla4xxx_scsi_transport =
9921 iscsi_register_transport(&qla4xxx_iscsi_transport);
9922 if (!qla4xxx_scsi_transport){
9923 ret = -ENODEV;
9924 goto release_srb_cache;
9925 }
9926
9927 ret = pci_register_driver(&qla4xxx_pci_driver);
9928 if (ret)
9929 goto unregister_transport;
9930
9931 printk(KERN_INFO "QLogic iSCSI HBA Driver\n");
9932 return 0;
9933
9934 unregister_transport:
9935 iscsi_unregister_transport(&qla4xxx_iscsi_transport);
9936 release_srb_cache:
9937 kmem_cache_destroy(srb_cachep);
9938 no_srp_cache:
9939 return ret;
9940 }
9941
9942 static void __exit qla4xxx_module_exit(void)
9943 {
9944 pci_unregister_driver(&qla4xxx_pci_driver);
9945 iscsi_unregister_transport(&qla4xxx_iscsi_transport);
9946 kmem_cache_destroy(srb_cachep);
9947 }
9948
9949 module_init(qla4xxx_module_init);
9950 module_exit(qla4xxx_module_exit);
9951
9952 MODULE_AUTHOR("QLogic Corporation");
9953 MODULE_DESCRIPTION("QLogic iSCSI HBA Driver");
9954 MODULE_LICENSE("GPL");
9955 MODULE_VERSION(QLA4XXX_DRIVER_VERSION);
Linux with added FPC-III support