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 scsi_timeout_action 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 .cmd_size = sizeof(struct qla4xxx_cmd_priv),
230
231 .eh_abort_handler = qla4xxx_eh_abort,
232 .eh_device_reset_handler = qla4xxx_eh_device_reset,
233 .eh_target_reset_handler = qla4xxx_eh_target_reset,
234 .eh_host_reset_handler = qla4xxx_eh_host_reset,
235 .eh_timed_out = qla4xxx_eh_cmd_timed_out,
236
237 .slave_alloc = qla4xxx_slave_alloc,
238 .change_queue_depth = scsi_change_queue_depth,
239
240 .this_id = -1,
241 .cmd_per_lun = 3,
242 .sg_tablesize = SG_ALL,
243
244 .max_sectors = 0xFFFF,
245 .shost_groups = qla4xxx_host_groups,
246 .host_reset = qla4xxx_host_reset,
247 .vendor_id = SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC,
248 };
249
250 static struct iscsi_transport qla4xxx_iscsi_transport = {
251 .owner = THIS_MODULE,
252 .name = DRIVER_NAME,
253 .caps = CAP_TEXT_NEGO |
254 CAP_DATA_PATH_OFFLOAD | CAP_HDRDGST |
255 CAP_DATADGST | CAP_LOGIN_OFFLOAD |
256 CAP_MULTI_R2T,
257 .attr_is_visible = qla4_attr_is_visible,
258 .create_session = qla4xxx_session_create,
259 .destroy_session = qla4xxx_session_destroy,
260 .start_conn = qla4xxx_conn_start,
261 .create_conn = qla4xxx_conn_create,
262 .bind_conn = qla4xxx_conn_bind,
263 .unbind_conn = iscsi_conn_unbind,
264 .stop_conn = iscsi_conn_stop,
265 .destroy_conn = qla4xxx_conn_destroy,
266 .set_param = iscsi_set_param,
267 .get_conn_param = qla4xxx_conn_get_param,
268 .get_session_param = qla4xxx_session_get_param,
269 .get_ep_param = qla4xxx_get_ep_param,
270 .ep_connect = qla4xxx_ep_connect,
271 .ep_poll = qla4xxx_ep_poll,
272 .ep_disconnect = qla4xxx_ep_disconnect,
273 .get_stats = qla4xxx_conn_get_stats,
274 .send_pdu = iscsi_conn_send_pdu,
275 .xmit_task = qla4xxx_task_xmit,
276 .cleanup_task = qla4xxx_task_cleanup,
277 .alloc_pdu = qla4xxx_alloc_pdu,
278
279 .get_host_param = qla4xxx_host_get_param,
280 .set_iface_param = qla4xxx_iface_set_param,
281 .get_iface_param = qla4xxx_get_iface_param,
282 .bsg_request = qla4xxx_bsg_request,
283 .send_ping = qla4xxx_send_ping,
284 .get_chap = qla4xxx_get_chap_list,
285 .delete_chap = qla4xxx_delete_chap,
286 .set_chap = qla4xxx_set_chap_entry,
287 .get_flashnode_param = qla4xxx_sysfs_ddb_get_param,
288 .set_flashnode_param = qla4xxx_sysfs_ddb_set_param,
289 .new_flashnode = qla4xxx_sysfs_ddb_add,
290 .del_flashnode = qla4xxx_sysfs_ddb_delete,
291 .login_flashnode = qla4xxx_sysfs_ddb_login,
292 .logout_flashnode = qla4xxx_sysfs_ddb_logout,
293 .logout_flashnode_sid = qla4xxx_sysfs_ddb_logout_sid,
294 .get_host_stats = qla4xxx_get_host_stats,
295 };
296
297 static struct scsi_transport_template *qla4xxx_scsi_transport;
298
qla4xxx_isp_check_reg(struct scsi_qla_host * ha)299 static int qla4xxx_isp_check_reg(struct scsi_qla_host *ha)
300 {
301 u32 reg_val = 0;
302 int rval = QLA_SUCCESS;
303
304 if (is_qla8022(ha))
305 reg_val = readl(&ha->qla4_82xx_reg->host_status);
306 else if (is_qla8032(ha) || is_qla8042(ha))
307 reg_val = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_ALIVE_COUNTER);
308 else
309 reg_val = readw(&ha->reg->ctrl_status);
310
311 if (reg_val == QL4_ISP_REG_DISCONNECT)
312 rval = QLA_ERROR;
313
314 return rval;
315 }
316
qla4xxx_send_ping(struct Scsi_Host * shost,uint32_t iface_num,uint32_t iface_type,uint32_t payload_size,uint32_t pid,struct sockaddr * dst_addr)317 static int qla4xxx_send_ping(struct Scsi_Host *shost, uint32_t iface_num,
318 uint32_t iface_type, uint32_t payload_size,
319 uint32_t pid, struct sockaddr *dst_addr)
320 {
321 struct scsi_qla_host *ha = to_qla_host(shost);
322 struct sockaddr_in *addr;
323 struct sockaddr_in6 *addr6;
324 uint32_t options = 0;
325 uint8_t ipaddr[IPv6_ADDR_LEN];
326 int rval;
327
328 memset(ipaddr, 0, IPv6_ADDR_LEN);
329 /* IPv4 to IPv4 */
330 if ((iface_type == ISCSI_IFACE_TYPE_IPV4) &&
331 (dst_addr->sa_family == AF_INET)) {
332 addr = (struct sockaddr_in *)dst_addr;
333 memcpy(ipaddr, &addr->sin_addr.s_addr, IP_ADDR_LEN);
334 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv4 Ping src: %pI4 "
335 "dest: %pI4\n", __func__,
336 &ha->ip_config.ip_address, ipaddr));
337 rval = qla4xxx_ping_iocb(ha, options, payload_size, pid,
338 ipaddr);
339 if (rval)
340 rval = -EINVAL;
341 } else if ((iface_type == ISCSI_IFACE_TYPE_IPV6) &&
342 (dst_addr->sa_family == AF_INET6)) {
343 /* IPv6 to IPv6 */
344 addr6 = (struct sockaddr_in6 *)dst_addr;
345 memcpy(ipaddr, &addr6->sin6_addr.in6_u.u6_addr8, IPv6_ADDR_LEN);
346
347 options |= PING_IPV6_PROTOCOL_ENABLE;
348
349 /* Ping using LinkLocal address */
350 if ((iface_num == 0) || (iface_num == 1)) {
351 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: LinkLocal Ping "
352 "src: %pI6 dest: %pI6\n", __func__,
353 &ha->ip_config.ipv6_link_local_addr,
354 ipaddr));
355 options |= PING_IPV6_LINKLOCAL_ADDR;
356 rval = qla4xxx_ping_iocb(ha, options, payload_size,
357 pid, ipaddr);
358 } else {
359 ql4_printk(KERN_WARNING, ha, "%s: iface num = %d "
360 "not supported\n", __func__, iface_num);
361 rval = -ENOSYS;
362 goto exit_send_ping;
363 }
364
365 /*
366 * If ping using LinkLocal address fails, try ping using
367 * IPv6 address
368 */
369 if (rval != QLA_SUCCESS) {
370 options &= ~PING_IPV6_LINKLOCAL_ADDR;
371 if (iface_num == 0) {
372 options |= PING_IPV6_ADDR0;
373 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv6 "
374 "Ping src: %pI6 "
375 "dest: %pI6\n", __func__,
376 &ha->ip_config.ipv6_addr0,
377 ipaddr));
378 } else if (iface_num == 1) {
379 options |= PING_IPV6_ADDR1;
380 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv6 "
381 "Ping src: %pI6 "
382 "dest: %pI6\n", __func__,
383 &ha->ip_config.ipv6_addr1,
384 ipaddr));
385 }
386 rval = qla4xxx_ping_iocb(ha, options, payload_size,
387 pid, ipaddr);
388 if (rval)
389 rval = -EINVAL;
390 }
391 } else
392 rval = -ENOSYS;
393 exit_send_ping:
394 return rval;
395 }
396
qla4_attr_is_visible(int param_type,int param)397 static umode_t qla4_attr_is_visible(int param_type, int param)
398 {
399 switch (param_type) {
400 case ISCSI_HOST_PARAM:
401 switch (param) {
402 case ISCSI_HOST_PARAM_HWADDRESS:
403 case ISCSI_HOST_PARAM_IPADDRESS:
404 case ISCSI_HOST_PARAM_INITIATOR_NAME:
405 case ISCSI_HOST_PARAM_PORT_STATE:
406 case ISCSI_HOST_PARAM_PORT_SPEED:
407 return S_IRUGO;
408 default:
409 return 0;
410 }
411 case ISCSI_PARAM:
412 switch (param) {
413 case ISCSI_PARAM_PERSISTENT_ADDRESS:
414 case ISCSI_PARAM_PERSISTENT_PORT:
415 case ISCSI_PARAM_CONN_ADDRESS:
416 case ISCSI_PARAM_CONN_PORT:
417 case ISCSI_PARAM_TARGET_NAME:
418 case ISCSI_PARAM_TPGT:
419 case ISCSI_PARAM_TARGET_ALIAS:
420 case ISCSI_PARAM_MAX_BURST:
421 case ISCSI_PARAM_MAX_R2T:
422 case ISCSI_PARAM_FIRST_BURST:
423 case ISCSI_PARAM_MAX_RECV_DLENGTH:
424 case ISCSI_PARAM_MAX_XMIT_DLENGTH:
425 case ISCSI_PARAM_IFACE_NAME:
426 case ISCSI_PARAM_CHAP_OUT_IDX:
427 case ISCSI_PARAM_CHAP_IN_IDX:
428 case ISCSI_PARAM_USERNAME:
429 case ISCSI_PARAM_PASSWORD:
430 case ISCSI_PARAM_USERNAME_IN:
431 case ISCSI_PARAM_PASSWORD_IN:
432 case ISCSI_PARAM_AUTO_SND_TGT_DISABLE:
433 case ISCSI_PARAM_DISCOVERY_SESS:
434 case ISCSI_PARAM_PORTAL_TYPE:
435 case ISCSI_PARAM_CHAP_AUTH_EN:
436 case ISCSI_PARAM_DISCOVERY_LOGOUT_EN:
437 case ISCSI_PARAM_BIDI_CHAP_EN:
438 case ISCSI_PARAM_DISCOVERY_AUTH_OPTIONAL:
439 case ISCSI_PARAM_DEF_TIME2WAIT:
440 case ISCSI_PARAM_DEF_TIME2RETAIN:
441 case ISCSI_PARAM_HDRDGST_EN:
442 case ISCSI_PARAM_DATADGST_EN:
443 case ISCSI_PARAM_INITIAL_R2T_EN:
444 case ISCSI_PARAM_IMM_DATA_EN:
445 case ISCSI_PARAM_PDU_INORDER_EN:
446 case ISCSI_PARAM_DATASEQ_INORDER_EN:
447 case ISCSI_PARAM_MAX_SEGMENT_SIZE:
448 case ISCSI_PARAM_TCP_TIMESTAMP_STAT:
449 case ISCSI_PARAM_TCP_WSF_DISABLE:
450 case ISCSI_PARAM_TCP_NAGLE_DISABLE:
451 case ISCSI_PARAM_TCP_TIMER_SCALE:
452 case ISCSI_PARAM_TCP_TIMESTAMP_EN:
453 case ISCSI_PARAM_TCP_XMIT_WSF:
454 case ISCSI_PARAM_TCP_RECV_WSF:
455 case ISCSI_PARAM_IP_FRAGMENT_DISABLE:
456 case ISCSI_PARAM_IPV4_TOS:
457 case ISCSI_PARAM_IPV6_TC:
458 case ISCSI_PARAM_IPV6_FLOW_LABEL:
459 case ISCSI_PARAM_IS_FW_ASSIGNED_IPV6:
460 case ISCSI_PARAM_KEEPALIVE_TMO:
461 case ISCSI_PARAM_LOCAL_PORT:
462 case ISCSI_PARAM_ISID:
463 case ISCSI_PARAM_TSID:
464 case ISCSI_PARAM_DEF_TASKMGMT_TMO:
465 case ISCSI_PARAM_ERL:
466 case ISCSI_PARAM_STATSN:
467 case ISCSI_PARAM_EXP_STATSN:
468 case ISCSI_PARAM_DISCOVERY_PARENT_IDX:
469 case ISCSI_PARAM_DISCOVERY_PARENT_TYPE:
470 case ISCSI_PARAM_LOCAL_IPADDR:
471 return S_IRUGO;
472 default:
473 return 0;
474 }
475 case ISCSI_NET_PARAM:
476 switch (param) {
477 case ISCSI_NET_PARAM_IPV4_ADDR:
478 case ISCSI_NET_PARAM_IPV4_SUBNET:
479 case ISCSI_NET_PARAM_IPV4_GW:
480 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
481 case ISCSI_NET_PARAM_IFACE_ENABLE:
482 case ISCSI_NET_PARAM_IPV6_LINKLOCAL:
483 case ISCSI_NET_PARAM_IPV6_ADDR:
484 case ISCSI_NET_PARAM_IPV6_ROUTER:
485 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG:
486 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG:
487 case ISCSI_NET_PARAM_VLAN_ID:
488 case ISCSI_NET_PARAM_VLAN_PRIORITY:
489 case ISCSI_NET_PARAM_VLAN_ENABLED:
490 case ISCSI_NET_PARAM_MTU:
491 case ISCSI_NET_PARAM_PORT:
492 case ISCSI_NET_PARAM_IPADDR_STATE:
493 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_STATE:
494 case ISCSI_NET_PARAM_IPV6_ROUTER_STATE:
495 case ISCSI_NET_PARAM_DELAYED_ACK_EN:
496 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE:
497 case ISCSI_NET_PARAM_TCP_WSF_DISABLE:
498 case ISCSI_NET_PARAM_TCP_WSF:
499 case ISCSI_NET_PARAM_TCP_TIMER_SCALE:
500 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN:
501 case ISCSI_NET_PARAM_CACHE_ID:
502 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN:
503 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN:
504 case ISCSI_NET_PARAM_IPV4_TOS_EN:
505 case ISCSI_NET_PARAM_IPV4_TOS:
506 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN:
507 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN:
508 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID:
509 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN:
510 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN:
511 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID:
512 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN:
513 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE:
514 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN:
515 case ISCSI_NET_PARAM_REDIRECT_EN:
516 case ISCSI_NET_PARAM_IPV4_TTL:
517 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN:
518 case ISCSI_NET_PARAM_IPV6_MLD_EN:
519 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL:
520 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS:
521 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT:
522 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO:
523 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME:
524 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO:
525 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT:
526 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU:
527 return S_IRUGO;
528 default:
529 return 0;
530 }
531 case ISCSI_IFACE_PARAM:
532 switch (param) {
533 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO:
534 case ISCSI_IFACE_PARAM_HDRDGST_EN:
535 case ISCSI_IFACE_PARAM_DATADGST_EN:
536 case ISCSI_IFACE_PARAM_IMM_DATA_EN:
537 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN:
538 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN:
539 case ISCSI_IFACE_PARAM_PDU_INORDER_EN:
540 case ISCSI_IFACE_PARAM_ERL:
541 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH:
542 case ISCSI_IFACE_PARAM_FIRST_BURST:
543 case ISCSI_IFACE_PARAM_MAX_R2T:
544 case ISCSI_IFACE_PARAM_MAX_BURST:
545 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN:
546 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN:
547 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL:
548 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN:
549 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN:
550 case ISCSI_IFACE_PARAM_INITIATOR_NAME:
551 return S_IRUGO;
552 default:
553 return 0;
554 }
555 case ISCSI_FLASHNODE_PARAM:
556 switch (param) {
557 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6:
558 case ISCSI_FLASHNODE_PORTAL_TYPE:
559 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE:
560 case ISCSI_FLASHNODE_DISCOVERY_SESS:
561 case ISCSI_FLASHNODE_ENTRY_EN:
562 case ISCSI_FLASHNODE_HDR_DGST_EN:
563 case ISCSI_FLASHNODE_DATA_DGST_EN:
564 case ISCSI_FLASHNODE_IMM_DATA_EN:
565 case ISCSI_FLASHNODE_INITIAL_R2T_EN:
566 case ISCSI_FLASHNODE_DATASEQ_INORDER:
567 case ISCSI_FLASHNODE_PDU_INORDER:
568 case ISCSI_FLASHNODE_CHAP_AUTH_EN:
569 case ISCSI_FLASHNODE_SNACK_REQ_EN:
570 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN:
571 case ISCSI_FLASHNODE_BIDI_CHAP_EN:
572 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL:
573 case ISCSI_FLASHNODE_ERL:
574 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT:
575 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE:
576 case ISCSI_FLASHNODE_TCP_WSF_DISABLE:
577 case ISCSI_FLASHNODE_TCP_TIMER_SCALE:
578 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN:
579 case ISCSI_FLASHNODE_IP_FRAG_DISABLE:
580 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH:
581 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH:
582 case ISCSI_FLASHNODE_FIRST_BURST:
583 case ISCSI_FLASHNODE_DEF_TIME2WAIT:
584 case ISCSI_FLASHNODE_DEF_TIME2RETAIN:
585 case ISCSI_FLASHNODE_MAX_R2T:
586 case ISCSI_FLASHNODE_KEEPALIVE_TMO:
587 case ISCSI_FLASHNODE_ISID:
588 case ISCSI_FLASHNODE_TSID:
589 case ISCSI_FLASHNODE_PORT:
590 case ISCSI_FLASHNODE_MAX_BURST:
591 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO:
592 case ISCSI_FLASHNODE_IPADDR:
593 case ISCSI_FLASHNODE_ALIAS:
594 case ISCSI_FLASHNODE_REDIRECT_IPADDR:
595 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE:
596 case ISCSI_FLASHNODE_LOCAL_PORT:
597 case ISCSI_FLASHNODE_IPV4_TOS:
598 case ISCSI_FLASHNODE_IPV6_TC:
599 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL:
600 case ISCSI_FLASHNODE_NAME:
601 case ISCSI_FLASHNODE_TPGT:
602 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6:
603 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX:
604 case ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE:
605 case ISCSI_FLASHNODE_TCP_XMIT_WSF:
606 case ISCSI_FLASHNODE_TCP_RECV_WSF:
607 case ISCSI_FLASHNODE_CHAP_OUT_IDX:
608 case ISCSI_FLASHNODE_USERNAME:
609 case ISCSI_FLASHNODE_PASSWORD:
610 case ISCSI_FLASHNODE_STATSN:
611 case ISCSI_FLASHNODE_EXP_STATSN:
612 case ISCSI_FLASHNODE_IS_BOOT_TGT:
613 return S_IRUGO;
614 default:
615 return 0;
616 }
617 }
618
619 return 0;
620 }
621
622 /**
623 * qla4xxx_create_chap_list - Create CHAP list from FLASH
624 * @ha: pointer to adapter structure
625 *
626 * Read flash and make a list of CHAP entries, during login when a CHAP entry
627 * is received, it will be checked in this list. If entry exist then the CHAP
628 * entry index is set in the DDB. If CHAP entry does not exist in this list
629 * then a new entry is added in FLASH in CHAP table and the index obtained is
630 * used in the DDB.
631 **/
qla4xxx_create_chap_list(struct scsi_qla_host * ha)632 static void qla4xxx_create_chap_list(struct scsi_qla_host *ha)
633 {
634 int rval = 0;
635 uint8_t *chap_flash_data = NULL;
636 uint32_t offset;
637 dma_addr_t chap_dma;
638 uint32_t chap_size = 0;
639
640 if (is_qla40XX(ha))
641 chap_size = MAX_CHAP_ENTRIES_40XX *
642 sizeof(struct ql4_chap_table);
643 else /* Single region contains CHAP info for both
644 * ports which is divided into half for each port.
645 */
646 chap_size = ha->hw.flt_chap_size / 2;
647
648 chap_flash_data = dma_alloc_coherent(&ha->pdev->dev, chap_size,
649 &chap_dma, GFP_KERNEL);
650 if (!chap_flash_data) {
651 ql4_printk(KERN_ERR, ha, "No memory for chap_flash_data\n");
652 return;
653 }
654
655 if (is_qla40XX(ha)) {
656 offset = FLASH_CHAP_OFFSET;
657 } else {
658 offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2);
659 if (ha->port_num == 1)
660 offset += chap_size;
661 }
662
663 rval = qla4xxx_get_flash(ha, chap_dma, offset, chap_size);
664 if (rval != QLA_SUCCESS)
665 goto exit_chap_list;
666
667 if (ha->chap_list == NULL)
668 ha->chap_list = vmalloc(chap_size);
669 if (ha->chap_list == NULL) {
670 ql4_printk(KERN_ERR, ha, "No memory for ha->chap_list\n");
671 goto exit_chap_list;
672 }
673
674 memcpy(ha->chap_list, chap_flash_data, chap_size);
675
676 exit_chap_list:
677 dma_free_coherent(&ha->pdev->dev, chap_size, chap_flash_data, chap_dma);
678 }
679
qla4xxx_get_chap_by_index(struct scsi_qla_host * ha,int16_t chap_index,struct ql4_chap_table ** chap_entry)680 static int qla4xxx_get_chap_by_index(struct scsi_qla_host *ha,
681 int16_t chap_index,
682 struct ql4_chap_table **chap_entry)
683 {
684 int rval = QLA_ERROR;
685 int max_chap_entries;
686
687 if (!ha->chap_list) {
688 ql4_printk(KERN_ERR, ha, "CHAP table cache is empty!\n");
689 goto exit_get_chap;
690 }
691
692 if (is_qla80XX(ha))
693 max_chap_entries = (ha->hw.flt_chap_size / 2) /
694 sizeof(struct ql4_chap_table);
695 else
696 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
697
698 if (chap_index > max_chap_entries) {
699 ql4_printk(KERN_ERR, ha, "Invalid Chap index\n");
700 goto exit_get_chap;
701 }
702
703 *chap_entry = (struct ql4_chap_table *)ha->chap_list + chap_index;
704 if ((*chap_entry)->cookie !=
705 cpu_to_le16(CHAP_VALID_COOKIE)) {
706 *chap_entry = NULL;
707 } else {
708 rval = QLA_SUCCESS;
709 }
710
711 exit_get_chap:
712 return rval;
713 }
714
715 /**
716 * qla4xxx_find_free_chap_index - Find the first free chap index
717 * @ha: pointer to adapter structure
718 * @chap_index: CHAP index to be returned
719 *
720 * Find the first free chap index available in the chap table
721 *
722 * Note: Caller should acquire the chap lock before getting here.
723 **/
qla4xxx_find_free_chap_index(struct scsi_qla_host * ha,uint16_t * chap_index)724 static int qla4xxx_find_free_chap_index(struct scsi_qla_host *ha,
725 uint16_t *chap_index)
726 {
727 int i, rval;
728 int free_index = -1;
729 int max_chap_entries = 0;
730 struct ql4_chap_table *chap_table;
731
732 if (is_qla80XX(ha))
733 max_chap_entries = (ha->hw.flt_chap_size / 2) /
734 sizeof(struct ql4_chap_table);
735 else
736 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
737
738 if (!ha->chap_list) {
739 ql4_printk(KERN_ERR, ha, "CHAP table cache is empty!\n");
740 rval = QLA_ERROR;
741 goto exit_find_chap;
742 }
743
744 for (i = 0; i < max_chap_entries; i++) {
745 chap_table = (struct ql4_chap_table *)ha->chap_list + i;
746
747 if ((chap_table->cookie !=
748 cpu_to_le16(CHAP_VALID_COOKIE)) &&
749 (i > MAX_RESRV_CHAP_IDX)) {
750 free_index = i;
751 break;
752 }
753 }
754
755 if (free_index != -1) {
756 *chap_index = free_index;
757 rval = QLA_SUCCESS;
758 } else {
759 rval = QLA_ERROR;
760 }
761
762 exit_find_chap:
763 return rval;
764 }
765
qla4xxx_get_chap_list(struct Scsi_Host * shost,uint16_t chap_tbl_idx,uint32_t * num_entries,char * buf)766 static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx,
767 uint32_t *num_entries, char *buf)
768 {
769 struct scsi_qla_host *ha = to_qla_host(shost);
770 struct ql4_chap_table *chap_table;
771 struct iscsi_chap_rec *chap_rec;
772 int max_chap_entries = 0;
773 int valid_chap_entries = 0;
774 int ret = 0, i;
775
776 if (is_qla80XX(ha))
777 max_chap_entries = (ha->hw.flt_chap_size / 2) /
778 sizeof(struct ql4_chap_table);
779 else
780 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
781
782 ql4_printk(KERN_INFO, ha, "%s: num_entries = %d, CHAP idx = %d\n",
783 __func__, *num_entries, chap_tbl_idx);
784
785 if (!buf) {
786 ret = -ENOMEM;
787 goto exit_get_chap_list;
788 }
789
790 qla4xxx_create_chap_list(ha);
791
792 chap_rec = (struct iscsi_chap_rec *) buf;
793 mutex_lock(&ha->chap_sem);
794 for (i = chap_tbl_idx; i < max_chap_entries; i++) {
795 chap_table = (struct ql4_chap_table *)ha->chap_list + i;
796 if (chap_table->cookie !=
797 cpu_to_le16(CHAP_VALID_COOKIE))
798 continue;
799
800 chap_rec->chap_tbl_idx = i;
801 strscpy(chap_rec->username, chap_table->name,
802 ISCSI_CHAP_AUTH_NAME_MAX_LEN);
803 strscpy(chap_rec->password, chap_table->secret,
804 QL4_CHAP_MAX_SECRET_LEN);
805 chap_rec->password_length = chap_table->secret_len;
806
807 if (chap_table->flags & BIT_7) /* local */
808 chap_rec->chap_type = CHAP_TYPE_OUT;
809
810 if (chap_table->flags & BIT_6) /* peer */
811 chap_rec->chap_type = CHAP_TYPE_IN;
812
813 chap_rec++;
814
815 valid_chap_entries++;
816 if (valid_chap_entries == *num_entries)
817 break;
818 }
819 mutex_unlock(&ha->chap_sem);
820
821 exit_get_chap_list:
822 ql4_printk(KERN_INFO, ha, "%s: Valid CHAP Entries = %d\n",
823 __func__, valid_chap_entries);
824 *num_entries = valid_chap_entries;
825 return ret;
826 }
827
__qla4xxx_is_chap_active(struct device * dev,void * data)828 static int __qla4xxx_is_chap_active(struct device *dev, void *data)
829 {
830 int ret = 0;
831 uint16_t *chap_tbl_idx = (uint16_t *) data;
832 struct iscsi_cls_session *cls_session;
833 struct iscsi_session *sess;
834 struct ddb_entry *ddb_entry;
835
836 if (!iscsi_is_session_dev(dev))
837 goto exit_is_chap_active;
838
839 cls_session = iscsi_dev_to_session(dev);
840 sess = cls_session->dd_data;
841 ddb_entry = sess->dd_data;
842
843 if (iscsi_is_session_online(cls_session))
844 goto exit_is_chap_active;
845
846 if (ddb_entry->chap_tbl_idx == *chap_tbl_idx)
847 ret = 1;
848
849 exit_is_chap_active:
850 return ret;
851 }
852
qla4xxx_is_chap_active(struct Scsi_Host * shost,uint16_t chap_tbl_idx)853 static int qla4xxx_is_chap_active(struct Scsi_Host *shost,
854 uint16_t chap_tbl_idx)
855 {
856 int ret = 0;
857
858 ret = device_for_each_child(&shost->shost_gendev, &chap_tbl_idx,
859 __qla4xxx_is_chap_active);
860
861 return ret;
862 }
863
qla4xxx_delete_chap(struct Scsi_Host * shost,uint16_t chap_tbl_idx)864 static int qla4xxx_delete_chap(struct Scsi_Host *shost, uint16_t chap_tbl_idx)
865 {
866 struct scsi_qla_host *ha = to_qla_host(shost);
867 struct ql4_chap_table *chap_table;
868 dma_addr_t chap_dma;
869 int max_chap_entries = 0;
870 uint32_t offset = 0;
871 uint32_t chap_size;
872 int ret = 0;
873
874 chap_table = dma_pool_zalloc(ha->chap_dma_pool, GFP_KERNEL, &chap_dma);
875 if (chap_table == NULL)
876 return -ENOMEM;
877
878 if (is_qla80XX(ha))
879 max_chap_entries = (ha->hw.flt_chap_size / 2) /
880 sizeof(struct ql4_chap_table);
881 else
882 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
883
884 if (chap_tbl_idx > max_chap_entries) {
885 ret = -EINVAL;
886 goto exit_delete_chap;
887 }
888
889 /* Check if chap index is in use.
890 * If chap is in use don't delet chap entry */
891 ret = qla4xxx_is_chap_active(shost, chap_tbl_idx);
892 if (ret) {
893 ql4_printk(KERN_INFO, ha, "CHAP entry %d is in use, cannot "
894 "delete from flash\n", chap_tbl_idx);
895 ret = -EBUSY;
896 goto exit_delete_chap;
897 }
898
899 chap_size = sizeof(struct ql4_chap_table);
900 if (is_qla40XX(ha))
901 offset = FLASH_CHAP_OFFSET | (chap_tbl_idx * chap_size);
902 else {
903 offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2);
904 /* flt_chap_size is CHAP table size for both ports
905 * so divide it by 2 to calculate the offset for second port
906 */
907 if (ha->port_num == 1)
908 offset += (ha->hw.flt_chap_size / 2);
909 offset += (chap_tbl_idx * chap_size);
910 }
911
912 ret = qla4xxx_get_flash(ha, chap_dma, offset, chap_size);
913 if (ret != QLA_SUCCESS) {
914 ret = -EINVAL;
915 goto exit_delete_chap;
916 }
917
918 DEBUG2(ql4_printk(KERN_INFO, ha, "Chap Cookie: x%x\n",
919 __le16_to_cpu(chap_table->cookie)));
920
921 if (__le16_to_cpu(chap_table->cookie) != CHAP_VALID_COOKIE) {
922 ql4_printk(KERN_ERR, ha, "No valid chap entry found\n");
923 goto exit_delete_chap;
924 }
925
926 chap_table->cookie = cpu_to_le16(0xFFFF);
927
928 offset = FLASH_CHAP_OFFSET |
929 (chap_tbl_idx * sizeof(struct ql4_chap_table));
930 ret = qla4xxx_set_flash(ha, chap_dma, offset, chap_size,
931 FLASH_OPT_RMW_COMMIT);
932 if (ret == QLA_SUCCESS && ha->chap_list) {
933 mutex_lock(&ha->chap_sem);
934 /* Update ha chap_list cache */
935 memcpy((struct ql4_chap_table *)ha->chap_list + chap_tbl_idx,
936 chap_table, sizeof(struct ql4_chap_table));
937 mutex_unlock(&ha->chap_sem);
938 }
939 if (ret != QLA_SUCCESS)
940 ret = -EINVAL;
941
942 exit_delete_chap:
943 dma_pool_free(ha->chap_dma_pool, chap_table, chap_dma);
944 return ret;
945 }
946
947 /**
948 * qla4xxx_set_chap_entry - Make chap entry with given information
949 * @shost: pointer to host
950 * @data: chap info - credentials, index and type to make chap entry
951 * @len: length of data
952 *
953 * Add or update chap entry with the given information
954 **/
qla4xxx_set_chap_entry(struct Scsi_Host * shost,void * data,int len)955 static int qla4xxx_set_chap_entry(struct Scsi_Host *shost, void *data, int len)
956 {
957 struct scsi_qla_host *ha = to_qla_host(shost);
958 struct iscsi_chap_rec chap_rec;
959 struct ql4_chap_table *chap_entry = NULL;
960 struct iscsi_param_info *param_info;
961 struct nlattr *attr;
962 int max_chap_entries = 0;
963 int type;
964 int rem = len;
965 int rc = 0;
966 int size;
967
968 memset(&chap_rec, 0, sizeof(chap_rec));
969
970 nla_for_each_attr(attr, data, len, rem) {
971 if (nla_len(attr) < sizeof(*param_info)) {
972 rc = -EINVAL;
973 goto exit_set_chap;
974 }
975
976 param_info = nla_data(attr);
977
978 switch (param_info->param) {
979 case ISCSI_CHAP_PARAM_INDEX:
980 chap_rec.chap_tbl_idx = *(uint16_t *)param_info->value;
981 break;
982 case ISCSI_CHAP_PARAM_CHAP_TYPE:
983 chap_rec.chap_type = param_info->value[0];
984 break;
985 case ISCSI_CHAP_PARAM_USERNAME:
986 size = min_t(size_t, sizeof(chap_rec.username),
987 param_info->len);
988 memcpy(chap_rec.username, param_info->value, size);
989 break;
990 case ISCSI_CHAP_PARAM_PASSWORD:
991 size = min_t(size_t, sizeof(chap_rec.password),
992 param_info->len);
993 memcpy(chap_rec.password, param_info->value, size);
994 break;
995 case ISCSI_CHAP_PARAM_PASSWORD_LEN:
996 chap_rec.password_length = param_info->value[0];
997 break;
998 default:
999 ql4_printk(KERN_ERR, ha,
1000 "%s: No such sysfs attribute\n", __func__);
1001 rc = -ENOSYS;
1002 goto exit_set_chap;
1003 }
1004 }
1005
1006 if (chap_rec.chap_type == CHAP_TYPE_IN)
1007 type = BIDI_CHAP;
1008 else
1009 type = LOCAL_CHAP;
1010
1011 if (is_qla80XX(ha))
1012 max_chap_entries = (ha->hw.flt_chap_size / 2) /
1013 sizeof(struct ql4_chap_table);
1014 else
1015 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
1016
1017 mutex_lock(&ha->chap_sem);
1018 if (chap_rec.chap_tbl_idx < max_chap_entries) {
1019 rc = qla4xxx_get_chap_by_index(ha, chap_rec.chap_tbl_idx,
1020 &chap_entry);
1021 if (!rc) {
1022 if (!(type == qla4xxx_get_chap_type(chap_entry))) {
1023 ql4_printk(KERN_INFO, ha,
1024 "Type mismatch for CHAP entry %d\n",
1025 chap_rec.chap_tbl_idx);
1026 rc = -EINVAL;
1027 goto exit_unlock_chap;
1028 }
1029
1030 /* If chap index is in use then don't modify it */
1031 rc = qla4xxx_is_chap_active(shost,
1032 chap_rec.chap_tbl_idx);
1033 if (rc) {
1034 ql4_printk(KERN_INFO, ha,
1035 "CHAP entry %d is in use\n",
1036 chap_rec.chap_tbl_idx);
1037 rc = -EBUSY;
1038 goto exit_unlock_chap;
1039 }
1040 }
1041 } else {
1042 rc = qla4xxx_find_free_chap_index(ha, &chap_rec.chap_tbl_idx);
1043 if (rc) {
1044 ql4_printk(KERN_INFO, ha, "CHAP entry not available\n");
1045 rc = -EBUSY;
1046 goto exit_unlock_chap;
1047 }
1048 }
1049
1050 rc = qla4xxx_set_chap(ha, chap_rec.username, chap_rec.password,
1051 chap_rec.chap_tbl_idx, type);
1052
1053 exit_unlock_chap:
1054 mutex_unlock(&ha->chap_sem);
1055
1056 exit_set_chap:
1057 return rc;
1058 }
1059
1060
qla4xxx_get_host_stats(struct Scsi_Host * shost,char * buf,int len)1061 static int qla4xxx_get_host_stats(struct Scsi_Host *shost, char *buf, int len)
1062 {
1063 struct scsi_qla_host *ha = to_qla_host(shost);
1064 struct iscsi_offload_host_stats *host_stats = NULL;
1065 int host_stats_size;
1066 int ret = 0;
1067 int ddb_idx = 0;
1068 struct ql_iscsi_stats *ql_iscsi_stats = NULL;
1069 int stats_size;
1070 dma_addr_t iscsi_stats_dma;
1071
1072 DEBUG2(ql4_printk(KERN_INFO, ha, "Func: %s\n", __func__));
1073
1074 host_stats_size = sizeof(struct iscsi_offload_host_stats);
1075
1076 if (host_stats_size != len) {
1077 ql4_printk(KERN_INFO, ha, "%s: host_stats size mismatch expected = %d, is = %d\n",
1078 __func__, len, host_stats_size);
1079 ret = -EINVAL;
1080 goto exit_host_stats;
1081 }
1082 host_stats = (struct iscsi_offload_host_stats *)buf;
1083
1084 if (!buf) {
1085 ret = -ENOMEM;
1086 goto exit_host_stats;
1087 }
1088
1089 stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats));
1090
1091 ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size,
1092 &iscsi_stats_dma, GFP_KERNEL);
1093 if (!ql_iscsi_stats) {
1094 ql4_printk(KERN_ERR, ha,
1095 "Unable to allocate memory for iscsi stats\n");
1096 ret = -ENOMEM;
1097 goto exit_host_stats;
1098 }
1099
1100 ret = qla4xxx_get_mgmt_data(ha, ddb_idx, stats_size,
1101 iscsi_stats_dma);
1102 if (ret != QLA_SUCCESS) {
1103 ql4_printk(KERN_ERR, ha,
1104 "Unable to retrieve iscsi stats\n");
1105 ret = -EIO;
1106 goto exit_host_stats;
1107 }
1108 host_stats->mactx_frames = le64_to_cpu(ql_iscsi_stats->mac_tx_frames);
1109 host_stats->mactx_bytes = le64_to_cpu(ql_iscsi_stats->mac_tx_bytes);
1110 host_stats->mactx_multicast_frames =
1111 le64_to_cpu(ql_iscsi_stats->mac_tx_multicast_frames);
1112 host_stats->mactx_broadcast_frames =
1113 le64_to_cpu(ql_iscsi_stats->mac_tx_broadcast_frames);
1114 host_stats->mactx_pause_frames =
1115 le64_to_cpu(ql_iscsi_stats->mac_tx_pause_frames);
1116 host_stats->mactx_control_frames =
1117 le64_to_cpu(ql_iscsi_stats->mac_tx_control_frames);
1118 host_stats->mactx_deferral =
1119 le64_to_cpu(ql_iscsi_stats->mac_tx_deferral);
1120 host_stats->mactx_excess_deferral =
1121 le64_to_cpu(ql_iscsi_stats->mac_tx_excess_deferral);
1122 host_stats->mactx_late_collision =
1123 le64_to_cpu(ql_iscsi_stats->mac_tx_late_collision);
1124 host_stats->mactx_abort = le64_to_cpu(ql_iscsi_stats->mac_tx_abort);
1125 host_stats->mactx_single_collision =
1126 le64_to_cpu(ql_iscsi_stats->mac_tx_single_collision);
1127 host_stats->mactx_multiple_collision =
1128 le64_to_cpu(ql_iscsi_stats->mac_tx_multiple_collision);
1129 host_stats->mactx_collision =
1130 le64_to_cpu(ql_iscsi_stats->mac_tx_collision);
1131 host_stats->mactx_frames_dropped =
1132 le64_to_cpu(ql_iscsi_stats->mac_tx_frames_dropped);
1133 host_stats->mactx_jumbo_frames =
1134 le64_to_cpu(ql_iscsi_stats->mac_tx_jumbo_frames);
1135 host_stats->macrx_frames = le64_to_cpu(ql_iscsi_stats->mac_rx_frames);
1136 host_stats->macrx_bytes = le64_to_cpu(ql_iscsi_stats->mac_rx_bytes);
1137 host_stats->macrx_unknown_control_frames =
1138 le64_to_cpu(ql_iscsi_stats->mac_rx_unknown_control_frames);
1139 host_stats->macrx_pause_frames =
1140 le64_to_cpu(ql_iscsi_stats->mac_rx_pause_frames);
1141 host_stats->macrx_control_frames =
1142 le64_to_cpu(ql_iscsi_stats->mac_rx_control_frames);
1143 host_stats->macrx_dribble =
1144 le64_to_cpu(ql_iscsi_stats->mac_rx_dribble);
1145 host_stats->macrx_frame_length_error =
1146 le64_to_cpu(ql_iscsi_stats->mac_rx_frame_length_error);
1147 host_stats->macrx_jabber = le64_to_cpu(ql_iscsi_stats->mac_rx_jabber);
1148 host_stats->macrx_carrier_sense_error =
1149 le64_to_cpu(ql_iscsi_stats->mac_rx_carrier_sense_error);
1150 host_stats->macrx_frame_discarded =
1151 le64_to_cpu(ql_iscsi_stats->mac_rx_frame_discarded);
1152 host_stats->macrx_frames_dropped =
1153 le64_to_cpu(ql_iscsi_stats->mac_rx_frames_dropped);
1154 host_stats->mac_crc_error = le64_to_cpu(ql_iscsi_stats->mac_crc_error);
1155 host_stats->mac_encoding_error =
1156 le64_to_cpu(ql_iscsi_stats->mac_encoding_error);
1157 host_stats->macrx_length_error_large =
1158 le64_to_cpu(ql_iscsi_stats->mac_rx_length_error_large);
1159 host_stats->macrx_length_error_small =
1160 le64_to_cpu(ql_iscsi_stats->mac_rx_length_error_small);
1161 host_stats->macrx_multicast_frames =
1162 le64_to_cpu(ql_iscsi_stats->mac_rx_multicast_frames);
1163 host_stats->macrx_broadcast_frames =
1164 le64_to_cpu(ql_iscsi_stats->mac_rx_broadcast_frames);
1165 host_stats->iptx_packets = le64_to_cpu(ql_iscsi_stats->ip_tx_packets);
1166 host_stats->iptx_bytes = le64_to_cpu(ql_iscsi_stats->ip_tx_bytes);
1167 host_stats->iptx_fragments =
1168 le64_to_cpu(ql_iscsi_stats->ip_tx_fragments);
1169 host_stats->iprx_packets = le64_to_cpu(ql_iscsi_stats->ip_rx_packets);
1170 host_stats->iprx_bytes = le64_to_cpu(ql_iscsi_stats->ip_rx_bytes);
1171 host_stats->iprx_fragments =
1172 le64_to_cpu(ql_iscsi_stats->ip_rx_fragments);
1173 host_stats->ip_datagram_reassembly =
1174 le64_to_cpu(ql_iscsi_stats->ip_datagram_reassembly);
1175 host_stats->ip_invalid_address_error =
1176 le64_to_cpu(ql_iscsi_stats->ip_invalid_address_error);
1177 host_stats->ip_error_packets =
1178 le64_to_cpu(ql_iscsi_stats->ip_error_packets);
1179 host_stats->ip_fragrx_overlap =
1180 le64_to_cpu(ql_iscsi_stats->ip_fragrx_overlap);
1181 host_stats->ip_fragrx_outoforder =
1182 le64_to_cpu(ql_iscsi_stats->ip_fragrx_outoforder);
1183 host_stats->ip_datagram_reassembly_timeout =
1184 le64_to_cpu(ql_iscsi_stats->ip_datagram_reassembly_timeout);
1185 host_stats->ipv6tx_packets =
1186 le64_to_cpu(ql_iscsi_stats->ipv6_tx_packets);
1187 host_stats->ipv6tx_bytes = le64_to_cpu(ql_iscsi_stats->ipv6_tx_bytes);
1188 host_stats->ipv6tx_fragments =
1189 le64_to_cpu(ql_iscsi_stats->ipv6_tx_fragments);
1190 host_stats->ipv6rx_packets =
1191 le64_to_cpu(ql_iscsi_stats->ipv6_rx_packets);
1192 host_stats->ipv6rx_bytes = le64_to_cpu(ql_iscsi_stats->ipv6_rx_bytes);
1193 host_stats->ipv6rx_fragments =
1194 le64_to_cpu(ql_iscsi_stats->ipv6_rx_fragments);
1195 host_stats->ipv6_datagram_reassembly =
1196 le64_to_cpu(ql_iscsi_stats->ipv6_datagram_reassembly);
1197 host_stats->ipv6_invalid_address_error =
1198 le64_to_cpu(ql_iscsi_stats->ipv6_invalid_address_error);
1199 host_stats->ipv6_error_packets =
1200 le64_to_cpu(ql_iscsi_stats->ipv6_error_packets);
1201 host_stats->ipv6_fragrx_overlap =
1202 le64_to_cpu(ql_iscsi_stats->ipv6_fragrx_overlap);
1203 host_stats->ipv6_fragrx_outoforder =
1204 le64_to_cpu(ql_iscsi_stats->ipv6_fragrx_outoforder);
1205 host_stats->ipv6_datagram_reassembly_timeout =
1206 le64_to_cpu(ql_iscsi_stats->ipv6_datagram_reassembly_timeout);
1207 host_stats->tcptx_segments =
1208 le64_to_cpu(ql_iscsi_stats->tcp_tx_segments);
1209 host_stats->tcptx_bytes = le64_to_cpu(ql_iscsi_stats->tcp_tx_bytes);
1210 host_stats->tcprx_segments =
1211 le64_to_cpu(ql_iscsi_stats->tcp_rx_segments);
1212 host_stats->tcprx_byte = le64_to_cpu(ql_iscsi_stats->tcp_rx_byte);
1213 host_stats->tcp_duplicate_ack_retx =
1214 le64_to_cpu(ql_iscsi_stats->tcp_duplicate_ack_retx);
1215 host_stats->tcp_retx_timer_expired =
1216 le64_to_cpu(ql_iscsi_stats->tcp_retx_timer_expired);
1217 host_stats->tcprx_duplicate_ack =
1218 le64_to_cpu(ql_iscsi_stats->tcp_rx_duplicate_ack);
1219 host_stats->tcprx_pure_ackr =
1220 le64_to_cpu(ql_iscsi_stats->tcp_rx_pure_ackr);
1221 host_stats->tcptx_delayed_ack =
1222 le64_to_cpu(ql_iscsi_stats->tcp_tx_delayed_ack);
1223 host_stats->tcptx_pure_ack =
1224 le64_to_cpu(ql_iscsi_stats->tcp_tx_pure_ack);
1225 host_stats->tcprx_segment_error =
1226 le64_to_cpu(ql_iscsi_stats->tcp_rx_segment_error);
1227 host_stats->tcprx_segment_outoforder =
1228 le64_to_cpu(ql_iscsi_stats->tcp_rx_segment_outoforder);
1229 host_stats->tcprx_window_probe =
1230 le64_to_cpu(ql_iscsi_stats->tcp_rx_window_probe);
1231 host_stats->tcprx_window_update =
1232 le64_to_cpu(ql_iscsi_stats->tcp_rx_window_update);
1233 host_stats->tcptx_window_probe_persist =
1234 le64_to_cpu(ql_iscsi_stats->tcp_tx_window_probe_persist);
1235 host_stats->ecc_error_correction =
1236 le64_to_cpu(ql_iscsi_stats->ecc_error_correction);
1237 host_stats->iscsi_pdu_tx = le64_to_cpu(ql_iscsi_stats->iscsi_pdu_tx);
1238 host_stats->iscsi_data_bytes_tx =
1239 le64_to_cpu(ql_iscsi_stats->iscsi_data_bytes_tx);
1240 host_stats->iscsi_pdu_rx = le64_to_cpu(ql_iscsi_stats->iscsi_pdu_rx);
1241 host_stats->iscsi_data_bytes_rx =
1242 le64_to_cpu(ql_iscsi_stats->iscsi_data_bytes_rx);
1243 host_stats->iscsi_io_completed =
1244 le64_to_cpu(ql_iscsi_stats->iscsi_io_completed);
1245 host_stats->iscsi_unexpected_io_rx =
1246 le64_to_cpu(ql_iscsi_stats->iscsi_unexpected_io_rx);
1247 host_stats->iscsi_format_error =
1248 le64_to_cpu(ql_iscsi_stats->iscsi_format_error);
1249 host_stats->iscsi_hdr_digest_error =
1250 le64_to_cpu(ql_iscsi_stats->iscsi_hdr_digest_error);
1251 host_stats->iscsi_data_digest_error =
1252 le64_to_cpu(ql_iscsi_stats->iscsi_data_digest_error);
1253 host_stats->iscsi_sequence_error =
1254 le64_to_cpu(ql_iscsi_stats->iscsi_sequence_error);
1255 exit_host_stats:
1256 if (ql_iscsi_stats)
1257 dma_free_coherent(&ha->pdev->dev, stats_size,
1258 ql_iscsi_stats, iscsi_stats_dma);
1259
1260 ql4_printk(KERN_INFO, ha, "%s: Get host stats done\n",
1261 __func__);
1262 return ret;
1263 }
1264
qla4xxx_get_iface_param(struct iscsi_iface * iface,enum iscsi_param_type param_type,int param,char * buf)1265 static int qla4xxx_get_iface_param(struct iscsi_iface *iface,
1266 enum iscsi_param_type param_type,
1267 int param, char *buf)
1268 {
1269 struct Scsi_Host *shost = iscsi_iface_to_shost(iface);
1270 struct scsi_qla_host *ha = to_qla_host(shost);
1271 int ival;
1272 char *pval = NULL;
1273 int len = -ENOSYS;
1274
1275 if (param_type == ISCSI_NET_PARAM) {
1276 switch (param) {
1277 case ISCSI_NET_PARAM_IPV4_ADDR:
1278 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address);
1279 break;
1280 case ISCSI_NET_PARAM_IPV4_SUBNET:
1281 len = sprintf(buf, "%pI4\n",
1282 &ha->ip_config.subnet_mask);
1283 break;
1284 case ISCSI_NET_PARAM_IPV4_GW:
1285 len = sprintf(buf, "%pI4\n", &ha->ip_config.gateway);
1286 break;
1287 case ISCSI_NET_PARAM_IFACE_ENABLE:
1288 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1289 OP_STATE(ha->ip_config.ipv4_options,
1290 IPOPT_IPV4_PROTOCOL_ENABLE, pval);
1291 } else {
1292 OP_STATE(ha->ip_config.ipv6_options,
1293 IPV6_OPT_IPV6_PROTOCOL_ENABLE, pval);
1294 }
1295
1296 len = sprintf(buf, "%s\n", pval);
1297 break;
1298 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
1299 len = sprintf(buf, "%s\n",
1300 (ha->ip_config.tcp_options &
1301 TCPOPT_DHCP_ENABLE) ?
1302 "dhcp" : "static");
1303 break;
1304 case ISCSI_NET_PARAM_IPV6_ADDR:
1305 if (iface->iface_num == 0)
1306 len = sprintf(buf, "%pI6\n",
1307 &ha->ip_config.ipv6_addr0);
1308 if (iface->iface_num == 1)
1309 len = sprintf(buf, "%pI6\n",
1310 &ha->ip_config.ipv6_addr1);
1311 break;
1312 case ISCSI_NET_PARAM_IPV6_LINKLOCAL:
1313 len = sprintf(buf, "%pI6\n",
1314 &ha->ip_config.ipv6_link_local_addr);
1315 break;
1316 case ISCSI_NET_PARAM_IPV6_ROUTER:
1317 len = sprintf(buf, "%pI6\n",
1318 &ha->ip_config.ipv6_default_router_addr);
1319 break;
1320 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG:
1321 pval = (ha->ip_config.ipv6_addl_options &
1322 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE) ?
1323 "nd" : "static";
1324
1325 len = sprintf(buf, "%s\n", pval);
1326 break;
1327 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG:
1328 pval = (ha->ip_config.ipv6_addl_options &
1329 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR) ?
1330 "auto" : "static";
1331
1332 len = sprintf(buf, "%s\n", pval);
1333 break;
1334 case ISCSI_NET_PARAM_VLAN_ID:
1335 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1336 ival = ha->ip_config.ipv4_vlan_tag &
1337 ISCSI_MAX_VLAN_ID;
1338 else
1339 ival = ha->ip_config.ipv6_vlan_tag &
1340 ISCSI_MAX_VLAN_ID;
1341
1342 len = sprintf(buf, "%d\n", ival);
1343 break;
1344 case ISCSI_NET_PARAM_VLAN_PRIORITY:
1345 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1346 ival = (ha->ip_config.ipv4_vlan_tag >> 13) &
1347 ISCSI_MAX_VLAN_PRIORITY;
1348 else
1349 ival = (ha->ip_config.ipv6_vlan_tag >> 13) &
1350 ISCSI_MAX_VLAN_PRIORITY;
1351
1352 len = sprintf(buf, "%d\n", ival);
1353 break;
1354 case ISCSI_NET_PARAM_VLAN_ENABLED:
1355 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1356 OP_STATE(ha->ip_config.ipv4_options,
1357 IPOPT_VLAN_TAGGING_ENABLE, pval);
1358 } else {
1359 OP_STATE(ha->ip_config.ipv6_options,
1360 IPV6_OPT_VLAN_TAGGING_ENABLE, pval);
1361 }
1362 len = sprintf(buf, "%s\n", pval);
1363 break;
1364 case ISCSI_NET_PARAM_MTU:
1365 len = sprintf(buf, "%d\n", ha->ip_config.eth_mtu_size);
1366 break;
1367 case ISCSI_NET_PARAM_PORT:
1368 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1369 len = sprintf(buf, "%d\n",
1370 ha->ip_config.ipv4_port);
1371 else
1372 len = sprintf(buf, "%d\n",
1373 ha->ip_config.ipv6_port);
1374 break;
1375 case ISCSI_NET_PARAM_IPADDR_STATE:
1376 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1377 pval = iscsi_get_ipaddress_state_name(
1378 ha->ip_config.ipv4_addr_state);
1379 } else {
1380 if (iface->iface_num == 0)
1381 pval = iscsi_get_ipaddress_state_name(
1382 ha->ip_config.ipv6_addr0_state);
1383 else if (iface->iface_num == 1)
1384 pval = iscsi_get_ipaddress_state_name(
1385 ha->ip_config.ipv6_addr1_state);
1386 }
1387
1388 len = sprintf(buf, "%s\n", pval);
1389 break;
1390 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_STATE:
1391 pval = iscsi_get_ipaddress_state_name(
1392 ha->ip_config.ipv6_link_local_state);
1393 len = sprintf(buf, "%s\n", pval);
1394 break;
1395 case ISCSI_NET_PARAM_IPV6_ROUTER_STATE:
1396 pval = iscsi_get_router_state_name(
1397 ha->ip_config.ipv6_default_router_state);
1398 len = sprintf(buf, "%s\n", pval);
1399 break;
1400 case ISCSI_NET_PARAM_DELAYED_ACK_EN:
1401 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1402 OP_STATE(~ha->ip_config.tcp_options,
1403 TCPOPT_DELAYED_ACK_DISABLE, pval);
1404 } else {
1405 OP_STATE(~ha->ip_config.ipv6_tcp_options,
1406 IPV6_TCPOPT_DELAYED_ACK_DISABLE, pval);
1407 }
1408 len = sprintf(buf, "%s\n", pval);
1409 break;
1410 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE:
1411 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1412 OP_STATE(~ha->ip_config.tcp_options,
1413 TCPOPT_NAGLE_ALGO_DISABLE, pval);
1414 } else {
1415 OP_STATE(~ha->ip_config.ipv6_tcp_options,
1416 IPV6_TCPOPT_NAGLE_ALGO_DISABLE, pval);
1417 }
1418 len = sprintf(buf, "%s\n", pval);
1419 break;
1420 case ISCSI_NET_PARAM_TCP_WSF_DISABLE:
1421 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1422 OP_STATE(~ha->ip_config.tcp_options,
1423 TCPOPT_WINDOW_SCALE_DISABLE, pval);
1424 } else {
1425 OP_STATE(~ha->ip_config.ipv6_tcp_options,
1426 IPV6_TCPOPT_WINDOW_SCALE_DISABLE,
1427 pval);
1428 }
1429 len = sprintf(buf, "%s\n", pval);
1430 break;
1431 case ISCSI_NET_PARAM_TCP_WSF:
1432 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1433 len = sprintf(buf, "%d\n",
1434 ha->ip_config.tcp_wsf);
1435 else
1436 len = sprintf(buf, "%d\n",
1437 ha->ip_config.ipv6_tcp_wsf);
1438 break;
1439 case ISCSI_NET_PARAM_TCP_TIMER_SCALE:
1440 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1441 ival = (ha->ip_config.tcp_options &
1442 TCPOPT_TIMER_SCALE) >> 1;
1443 else
1444 ival = (ha->ip_config.ipv6_tcp_options &
1445 IPV6_TCPOPT_TIMER_SCALE) >> 1;
1446
1447 len = sprintf(buf, "%d\n", ival);
1448 break;
1449 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN:
1450 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1451 OP_STATE(ha->ip_config.tcp_options,
1452 TCPOPT_TIMESTAMP_ENABLE, pval);
1453 } else {
1454 OP_STATE(ha->ip_config.ipv6_tcp_options,
1455 IPV6_TCPOPT_TIMESTAMP_EN, pval);
1456 }
1457 len = sprintf(buf, "%s\n", pval);
1458 break;
1459 case ISCSI_NET_PARAM_CACHE_ID:
1460 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1461 len = sprintf(buf, "%d\n",
1462 ha->ip_config.ipv4_cache_id);
1463 else
1464 len = sprintf(buf, "%d\n",
1465 ha->ip_config.ipv6_cache_id);
1466 break;
1467 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN:
1468 OP_STATE(ha->ip_config.tcp_options,
1469 TCPOPT_DNS_SERVER_IP_EN, pval);
1470
1471 len = sprintf(buf, "%s\n", pval);
1472 break;
1473 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN:
1474 OP_STATE(ha->ip_config.tcp_options,
1475 TCPOPT_SLP_DA_INFO_EN, pval);
1476
1477 len = sprintf(buf, "%s\n", pval);
1478 break;
1479 case ISCSI_NET_PARAM_IPV4_TOS_EN:
1480 OP_STATE(ha->ip_config.ipv4_options,
1481 IPOPT_IPV4_TOS_EN, pval);
1482
1483 len = sprintf(buf, "%s\n", pval);
1484 break;
1485 case ISCSI_NET_PARAM_IPV4_TOS:
1486 len = sprintf(buf, "%d\n", ha->ip_config.ipv4_tos);
1487 break;
1488 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN:
1489 OP_STATE(ha->ip_config.ipv4_options,
1490 IPOPT_GRAT_ARP_EN, pval);
1491
1492 len = sprintf(buf, "%s\n", pval);
1493 break;
1494 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN:
1495 OP_STATE(ha->ip_config.ipv4_options, IPOPT_ALT_CID_EN,
1496 pval);
1497
1498 len = sprintf(buf, "%s\n", pval);
1499 break;
1500 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID:
1501 pval = (ha->ip_config.ipv4_alt_cid_len) ?
1502 (char *)ha->ip_config.ipv4_alt_cid : "";
1503
1504 len = sprintf(buf, "%s\n", pval);
1505 break;
1506 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN:
1507 OP_STATE(ha->ip_config.ipv4_options,
1508 IPOPT_REQ_VID_EN, pval);
1509
1510 len = sprintf(buf, "%s\n", pval);
1511 break;
1512 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN:
1513 OP_STATE(ha->ip_config.ipv4_options,
1514 IPOPT_USE_VID_EN, pval);
1515
1516 len = sprintf(buf, "%s\n", pval);
1517 break;
1518 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID:
1519 pval = (ha->ip_config.ipv4_vid_len) ?
1520 (char *)ha->ip_config.ipv4_vid : "";
1521
1522 len = sprintf(buf, "%s\n", pval);
1523 break;
1524 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN:
1525 OP_STATE(ha->ip_config.ipv4_options,
1526 IPOPT_LEARN_IQN_EN, pval);
1527
1528 len = sprintf(buf, "%s\n", pval);
1529 break;
1530 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE:
1531 OP_STATE(~ha->ip_config.ipv4_options,
1532 IPOPT_FRAGMENTATION_DISABLE, pval);
1533
1534 len = sprintf(buf, "%s\n", pval);
1535 break;
1536 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN:
1537 OP_STATE(ha->ip_config.ipv4_options,
1538 IPOPT_IN_FORWARD_EN, pval);
1539
1540 len = sprintf(buf, "%s\n", pval);
1541 break;
1542 case ISCSI_NET_PARAM_REDIRECT_EN:
1543 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1544 OP_STATE(ha->ip_config.ipv4_options,
1545 IPOPT_ARP_REDIRECT_EN, pval);
1546 } else {
1547 OP_STATE(ha->ip_config.ipv6_options,
1548 IPV6_OPT_REDIRECT_EN, pval);
1549 }
1550 len = sprintf(buf, "%s\n", pval);
1551 break;
1552 case ISCSI_NET_PARAM_IPV4_TTL:
1553 len = sprintf(buf, "%d\n", ha->ip_config.ipv4_ttl);
1554 break;
1555 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN:
1556 OP_STATE(ha->ip_config.ipv6_options,
1557 IPV6_OPT_GRAT_NEIGHBOR_ADV_EN, pval);
1558
1559 len = sprintf(buf, "%s\n", pval);
1560 break;
1561 case ISCSI_NET_PARAM_IPV6_MLD_EN:
1562 OP_STATE(ha->ip_config.ipv6_addl_options,
1563 IPV6_ADDOPT_MLD_EN, pval);
1564
1565 len = sprintf(buf, "%s\n", pval);
1566 break;
1567 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL:
1568 len = sprintf(buf, "%u\n", ha->ip_config.ipv6_flow_lbl);
1569 break;
1570 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS:
1571 len = sprintf(buf, "%d\n",
1572 ha->ip_config.ipv6_traffic_class);
1573 break;
1574 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT:
1575 len = sprintf(buf, "%d\n",
1576 ha->ip_config.ipv6_hop_limit);
1577 break;
1578 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO:
1579 len = sprintf(buf, "%d\n",
1580 ha->ip_config.ipv6_nd_reach_time);
1581 break;
1582 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME:
1583 len = sprintf(buf, "%d\n",
1584 ha->ip_config.ipv6_nd_rexmit_timer);
1585 break;
1586 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO:
1587 len = sprintf(buf, "%d\n",
1588 ha->ip_config.ipv6_nd_stale_timeout);
1589 break;
1590 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT:
1591 len = sprintf(buf, "%d\n",
1592 ha->ip_config.ipv6_dup_addr_detect_count);
1593 break;
1594 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU:
1595 len = sprintf(buf, "%d\n",
1596 ha->ip_config.ipv6_gw_advrt_mtu);
1597 break;
1598 default:
1599 len = -ENOSYS;
1600 }
1601 } else if (param_type == ISCSI_IFACE_PARAM) {
1602 switch (param) {
1603 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO:
1604 len = sprintf(buf, "%d\n", ha->ip_config.def_timeout);
1605 break;
1606 case ISCSI_IFACE_PARAM_HDRDGST_EN:
1607 OP_STATE(ha->ip_config.iscsi_options,
1608 ISCSIOPTS_HEADER_DIGEST_EN, pval);
1609
1610 len = sprintf(buf, "%s\n", pval);
1611 break;
1612 case ISCSI_IFACE_PARAM_DATADGST_EN:
1613 OP_STATE(ha->ip_config.iscsi_options,
1614 ISCSIOPTS_DATA_DIGEST_EN, pval);
1615
1616 len = sprintf(buf, "%s\n", pval);
1617 break;
1618 case ISCSI_IFACE_PARAM_IMM_DATA_EN:
1619 OP_STATE(ha->ip_config.iscsi_options,
1620 ISCSIOPTS_IMMEDIATE_DATA_EN, pval);
1621
1622 len = sprintf(buf, "%s\n", pval);
1623 break;
1624 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN:
1625 OP_STATE(ha->ip_config.iscsi_options,
1626 ISCSIOPTS_INITIAL_R2T_EN, pval);
1627
1628 len = sprintf(buf, "%s\n", pval);
1629 break;
1630 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN:
1631 OP_STATE(ha->ip_config.iscsi_options,
1632 ISCSIOPTS_DATA_SEQ_INORDER_EN, pval);
1633
1634 len = sprintf(buf, "%s\n", pval);
1635 break;
1636 case ISCSI_IFACE_PARAM_PDU_INORDER_EN:
1637 OP_STATE(ha->ip_config.iscsi_options,
1638 ISCSIOPTS_DATA_PDU_INORDER_EN, pval);
1639
1640 len = sprintf(buf, "%s\n", pval);
1641 break;
1642 case ISCSI_IFACE_PARAM_ERL:
1643 len = sprintf(buf, "%d\n",
1644 (ha->ip_config.iscsi_options &
1645 ISCSIOPTS_ERL));
1646 break;
1647 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH:
1648 len = sprintf(buf, "%u\n",
1649 ha->ip_config.iscsi_max_pdu_size *
1650 BYTE_UNITS);
1651 break;
1652 case ISCSI_IFACE_PARAM_FIRST_BURST:
1653 len = sprintf(buf, "%u\n",
1654 ha->ip_config.iscsi_first_burst_len *
1655 BYTE_UNITS);
1656 break;
1657 case ISCSI_IFACE_PARAM_MAX_R2T:
1658 len = sprintf(buf, "%d\n",
1659 ha->ip_config.iscsi_max_outstnd_r2t);
1660 break;
1661 case ISCSI_IFACE_PARAM_MAX_BURST:
1662 len = sprintf(buf, "%u\n",
1663 ha->ip_config.iscsi_max_burst_len *
1664 BYTE_UNITS);
1665 break;
1666 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN:
1667 OP_STATE(ha->ip_config.iscsi_options,
1668 ISCSIOPTS_CHAP_AUTH_EN, pval);
1669
1670 len = sprintf(buf, "%s\n", pval);
1671 break;
1672 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN:
1673 OP_STATE(ha->ip_config.iscsi_options,
1674 ISCSIOPTS_BIDI_CHAP_EN, pval);
1675
1676 len = sprintf(buf, "%s\n", pval);
1677 break;
1678 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL:
1679 OP_STATE(ha->ip_config.iscsi_options,
1680 ISCSIOPTS_DISCOVERY_AUTH_EN, pval);
1681
1682 len = sprintf(buf, "%s\n", pval);
1683 break;
1684 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN:
1685 OP_STATE(ha->ip_config.iscsi_options,
1686 ISCSIOPTS_DISCOVERY_LOGOUT_EN, pval);
1687
1688 len = sprintf(buf, "%s\n", pval);
1689 break;
1690 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN:
1691 OP_STATE(ha->ip_config.iscsi_options,
1692 ISCSIOPTS_STRICT_LOGIN_COMP_EN, pval);
1693
1694 len = sprintf(buf, "%s\n", pval);
1695 break;
1696 case ISCSI_IFACE_PARAM_INITIATOR_NAME:
1697 len = sprintf(buf, "%s\n", ha->ip_config.iscsi_name);
1698 break;
1699 default:
1700 len = -ENOSYS;
1701 }
1702 }
1703
1704 return len;
1705 }
1706
1707 static struct iscsi_endpoint *
qla4xxx_ep_connect(struct Scsi_Host * shost,struct sockaddr * dst_addr,int non_blocking)1708 qla4xxx_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr,
1709 int non_blocking)
1710 {
1711 int ret;
1712 struct iscsi_endpoint *ep;
1713 struct qla_endpoint *qla_ep;
1714 struct scsi_qla_host *ha;
1715 struct sockaddr_in *addr;
1716 struct sockaddr_in6 *addr6;
1717
1718 if (!shost) {
1719 ret = -ENXIO;
1720 pr_err("%s: shost is NULL\n", __func__);
1721 return ERR_PTR(ret);
1722 }
1723
1724 ha = iscsi_host_priv(shost);
1725 ep = iscsi_create_endpoint(sizeof(struct qla_endpoint));
1726 if (!ep) {
1727 ret = -ENOMEM;
1728 return ERR_PTR(ret);
1729 }
1730
1731 qla_ep = ep->dd_data;
1732 memset(qla_ep, 0, sizeof(struct qla_endpoint));
1733 if (dst_addr->sa_family == AF_INET) {
1734 memcpy(&qla_ep->dst_addr, dst_addr, sizeof(struct sockaddr_in));
1735 addr = (struct sockaddr_in *)&qla_ep->dst_addr;
1736 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI4\n", __func__,
1737 (char *)&addr->sin_addr));
1738 } else if (dst_addr->sa_family == AF_INET6) {
1739 memcpy(&qla_ep->dst_addr, dst_addr,
1740 sizeof(struct sockaddr_in6));
1741 addr6 = (struct sockaddr_in6 *)&qla_ep->dst_addr;
1742 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI6\n", __func__,
1743 (char *)&addr6->sin6_addr));
1744 } else {
1745 ql4_printk(KERN_WARNING, ha, "%s: Invalid endpoint\n",
1746 __func__);
1747 }
1748
1749 qla_ep->host = shost;
1750
1751 return ep;
1752 }
1753
qla4xxx_ep_poll(struct iscsi_endpoint * ep,int timeout_ms)1754 static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms)
1755 {
1756 struct qla_endpoint *qla_ep;
1757 struct scsi_qla_host *ha;
1758 int ret = 0;
1759
1760 qla_ep = ep->dd_data;
1761 ha = to_qla_host(qla_ep->host);
1762 DEBUG2(pr_info_ratelimited("%s: host: %ld\n", __func__, ha->host_no));
1763
1764 if (adapter_up(ha) && !test_bit(AF_BUILD_DDB_LIST, &ha->flags))
1765 ret = 1;
1766
1767 return ret;
1768 }
1769
qla4xxx_ep_disconnect(struct iscsi_endpoint * ep)1770 static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep)
1771 {
1772 struct qla_endpoint *qla_ep;
1773 struct scsi_qla_host *ha;
1774
1775 qla_ep = ep->dd_data;
1776 ha = to_qla_host(qla_ep->host);
1777 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__,
1778 ha->host_no));
1779 iscsi_destroy_endpoint(ep);
1780 }
1781
qla4xxx_get_ep_param(struct iscsi_endpoint * ep,enum iscsi_param param,char * buf)1782 static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep,
1783 enum iscsi_param param,
1784 char *buf)
1785 {
1786 struct qla_endpoint *qla_ep = ep->dd_data;
1787 struct sockaddr *dst_addr;
1788 struct scsi_qla_host *ha;
1789
1790 if (!qla_ep)
1791 return -ENOTCONN;
1792
1793 ha = to_qla_host(qla_ep->host);
1794 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__,
1795 ha->host_no));
1796
1797 switch (param) {
1798 case ISCSI_PARAM_CONN_PORT:
1799 case ISCSI_PARAM_CONN_ADDRESS:
1800 dst_addr = (struct sockaddr *)&qla_ep->dst_addr;
1801 if (!dst_addr)
1802 return -ENOTCONN;
1803
1804 return iscsi_conn_get_addr_param((struct sockaddr_storage *)
1805 &qla_ep->dst_addr, param, buf);
1806 default:
1807 return -ENOSYS;
1808 }
1809 }
1810
qla4xxx_conn_get_stats(struct iscsi_cls_conn * cls_conn,struct iscsi_stats * stats)1811 static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn,
1812 struct iscsi_stats *stats)
1813 {
1814 struct iscsi_session *sess;
1815 struct iscsi_cls_session *cls_sess;
1816 struct ddb_entry *ddb_entry;
1817 struct scsi_qla_host *ha;
1818 struct ql_iscsi_stats *ql_iscsi_stats;
1819 int stats_size;
1820 int ret;
1821 dma_addr_t iscsi_stats_dma;
1822
1823 cls_sess = iscsi_conn_to_session(cls_conn);
1824 sess = cls_sess->dd_data;
1825 ddb_entry = sess->dd_data;
1826 ha = ddb_entry->ha;
1827
1828 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__,
1829 ha->host_no));
1830 stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats));
1831 /* Allocate memory */
1832 ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size,
1833 &iscsi_stats_dma, GFP_KERNEL);
1834 if (!ql_iscsi_stats) {
1835 ql4_printk(KERN_ERR, ha,
1836 "Unable to allocate memory for iscsi stats\n");
1837 goto exit_get_stats;
1838 }
1839
1840 ret = qla4xxx_get_mgmt_data(ha, ddb_entry->fw_ddb_index, stats_size,
1841 iscsi_stats_dma);
1842 if (ret != QLA_SUCCESS) {
1843 ql4_printk(KERN_ERR, ha,
1844 "Unable to retrieve iscsi stats\n");
1845 goto free_stats;
1846 }
1847
1848 /* octets */
1849 stats->txdata_octets = le64_to_cpu(ql_iscsi_stats->tx_data_octets);
1850 stats->rxdata_octets = le64_to_cpu(ql_iscsi_stats->rx_data_octets);
1851 /* xmit pdus */
1852 stats->noptx_pdus = le32_to_cpu(ql_iscsi_stats->tx_nopout_pdus);
1853 stats->scsicmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_cmd_pdus);
1854 stats->tmfcmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_tmf_cmd_pdus);
1855 stats->login_pdus = le32_to_cpu(ql_iscsi_stats->tx_login_cmd_pdus);
1856 stats->text_pdus = le32_to_cpu(ql_iscsi_stats->tx_text_cmd_pdus);
1857 stats->dataout_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_write_pdus);
1858 stats->logout_pdus = le32_to_cpu(ql_iscsi_stats->tx_logout_cmd_pdus);
1859 stats->snack_pdus = le32_to_cpu(ql_iscsi_stats->tx_snack_req_pdus);
1860 /* recv pdus */
1861 stats->noprx_pdus = le32_to_cpu(ql_iscsi_stats->rx_nopin_pdus);
1862 stats->scsirsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_resp_pdus);
1863 stats->tmfrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_tmf_resp_pdus);
1864 stats->textrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_text_resp_pdus);
1865 stats->datain_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_read_pdus);
1866 stats->logoutrsp_pdus =
1867 le32_to_cpu(ql_iscsi_stats->rx_logout_resp_pdus);
1868 stats->r2t_pdus = le32_to_cpu(ql_iscsi_stats->rx_r2t_pdus);
1869 stats->async_pdus = le32_to_cpu(ql_iscsi_stats->rx_async_pdus);
1870 stats->rjt_pdus = le32_to_cpu(ql_iscsi_stats->rx_reject_pdus);
1871
1872 free_stats:
1873 dma_free_coherent(&ha->pdev->dev, stats_size, ql_iscsi_stats,
1874 iscsi_stats_dma);
1875 exit_get_stats:
1876 return;
1877 }
1878
qla4xxx_eh_cmd_timed_out(struct scsi_cmnd * sc)1879 static enum scsi_timeout_action qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc)
1880 {
1881 struct iscsi_cls_session *session;
1882 unsigned long flags;
1883 enum scsi_timeout_action ret = SCSI_EH_NOT_HANDLED;
1884
1885 session = starget_to_session(scsi_target(sc->device));
1886
1887 spin_lock_irqsave(&session->lock, flags);
1888 if (session->state == ISCSI_SESSION_FAILED)
1889 ret = SCSI_EH_RESET_TIMER;
1890 spin_unlock_irqrestore(&session->lock, flags);
1891
1892 return ret;
1893 }
1894
qla4xxx_set_port_speed(struct Scsi_Host * shost)1895 static void qla4xxx_set_port_speed(struct Scsi_Host *shost)
1896 {
1897 struct scsi_qla_host *ha = to_qla_host(shost);
1898 struct iscsi_cls_host *ihost = shost->shost_data;
1899 uint32_t speed = ISCSI_PORT_SPEED_UNKNOWN;
1900
1901 qla4xxx_get_firmware_state(ha);
1902
1903 switch (ha->addl_fw_state & 0x0F00) {
1904 case FW_ADDSTATE_LINK_SPEED_10MBPS:
1905 speed = ISCSI_PORT_SPEED_10MBPS;
1906 break;
1907 case FW_ADDSTATE_LINK_SPEED_100MBPS:
1908 speed = ISCSI_PORT_SPEED_100MBPS;
1909 break;
1910 case FW_ADDSTATE_LINK_SPEED_1GBPS:
1911 speed = ISCSI_PORT_SPEED_1GBPS;
1912 break;
1913 case FW_ADDSTATE_LINK_SPEED_10GBPS:
1914 speed = ISCSI_PORT_SPEED_10GBPS;
1915 break;
1916 }
1917 ihost->port_speed = speed;
1918 }
1919
qla4xxx_set_port_state(struct Scsi_Host * shost)1920 static void qla4xxx_set_port_state(struct Scsi_Host *shost)
1921 {
1922 struct scsi_qla_host *ha = to_qla_host(shost);
1923 struct iscsi_cls_host *ihost = shost->shost_data;
1924 uint32_t state = ISCSI_PORT_STATE_DOWN;
1925
1926 if (test_bit(AF_LINK_UP, &ha->flags))
1927 state = ISCSI_PORT_STATE_UP;
1928
1929 ihost->port_state = state;
1930 }
1931
qla4xxx_host_get_param(struct Scsi_Host * shost,enum iscsi_host_param param,char * buf)1932 static int qla4xxx_host_get_param(struct Scsi_Host *shost,
1933 enum iscsi_host_param param, char *buf)
1934 {
1935 struct scsi_qla_host *ha = to_qla_host(shost);
1936 int len;
1937
1938 switch (param) {
1939 case ISCSI_HOST_PARAM_HWADDRESS:
1940 len = sysfs_format_mac(buf, ha->my_mac, MAC_ADDR_LEN);
1941 break;
1942 case ISCSI_HOST_PARAM_IPADDRESS:
1943 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address);
1944 break;
1945 case ISCSI_HOST_PARAM_INITIATOR_NAME:
1946 len = sprintf(buf, "%s\n", ha->name_string);
1947 break;
1948 case ISCSI_HOST_PARAM_PORT_STATE:
1949 qla4xxx_set_port_state(shost);
1950 len = sprintf(buf, "%s\n", iscsi_get_port_state_name(shost));
1951 break;
1952 case ISCSI_HOST_PARAM_PORT_SPEED:
1953 qla4xxx_set_port_speed(shost);
1954 len = sprintf(buf, "%s\n", iscsi_get_port_speed_name(shost));
1955 break;
1956 default:
1957 return -ENOSYS;
1958 }
1959
1960 return len;
1961 }
1962
qla4xxx_create_ipv4_iface(struct scsi_qla_host * ha)1963 static void qla4xxx_create_ipv4_iface(struct scsi_qla_host *ha)
1964 {
1965 if (ha->iface_ipv4)
1966 return;
1967
1968 /* IPv4 */
1969 ha->iface_ipv4 = iscsi_create_iface(ha->host,
1970 &qla4xxx_iscsi_transport,
1971 ISCSI_IFACE_TYPE_IPV4, 0, 0);
1972 if (!ha->iface_ipv4)
1973 ql4_printk(KERN_ERR, ha, "Could not create IPv4 iSCSI "
1974 "iface0.\n");
1975 }
1976
qla4xxx_create_ipv6_iface(struct scsi_qla_host * ha)1977 static void qla4xxx_create_ipv6_iface(struct scsi_qla_host *ha)
1978 {
1979 if (!ha->iface_ipv6_0)
1980 /* IPv6 iface-0 */
1981 ha->iface_ipv6_0 = iscsi_create_iface(ha->host,
1982 &qla4xxx_iscsi_transport,
1983 ISCSI_IFACE_TYPE_IPV6, 0,
1984 0);
1985 if (!ha->iface_ipv6_0)
1986 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI "
1987 "iface0.\n");
1988
1989 if (!ha->iface_ipv6_1)
1990 /* IPv6 iface-1 */
1991 ha->iface_ipv6_1 = iscsi_create_iface(ha->host,
1992 &qla4xxx_iscsi_transport,
1993 ISCSI_IFACE_TYPE_IPV6, 1,
1994 0);
1995 if (!ha->iface_ipv6_1)
1996 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI "
1997 "iface1.\n");
1998 }
1999
qla4xxx_create_ifaces(struct scsi_qla_host * ha)2000 static void qla4xxx_create_ifaces(struct scsi_qla_host *ha)
2001 {
2002 if (ha->ip_config.ipv4_options & IPOPT_IPV4_PROTOCOL_ENABLE)
2003 qla4xxx_create_ipv4_iface(ha);
2004
2005 if (ha->ip_config.ipv6_options & IPV6_OPT_IPV6_PROTOCOL_ENABLE)
2006 qla4xxx_create_ipv6_iface(ha);
2007 }
2008
qla4xxx_destroy_ipv4_iface(struct scsi_qla_host * ha)2009 static void qla4xxx_destroy_ipv4_iface(struct scsi_qla_host *ha)
2010 {
2011 if (ha->iface_ipv4) {
2012 iscsi_destroy_iface(ha->iface_ipv4);
2013 ha->iface_ipv4 = NULL;
2014 }
2015 }
2016
qla4xxx_destroy_ipv6_iface(struct scsi_qla_host * ha)2017 static void qla4xxx_destroy_ipv6_iface(struct scsi_qla_host *ha)
2018 {
2019 if (ha->iface_ipv6_0) {
2020 iscsi_destroy_iface(ha->iface_ipv6_0);
2021 ha->iface_ipv6_0 = NULL;
2022 }
2023 if (ha->iface_ipv6_1) {
2024 iscsi_destroy_iface(ha->iface_ipv6_1);
2025 ha->iface_ipv6_1 = NULL;
2026 }
2027 }
2028
qla4xxx_destroy_ifaces(struct scsi_qla_host * ha)2029 static void qla4xxx_destroy_ifaces(struct scsi_qla_host *ha)
2030 {
2031 qla4xxx_destroy_ipv4_iface(ha);
2032 qla4xxx_destroy_ipv6_iface(ha);
2033 }
2034
qla4xxx_set_ipv6(struct scsi_qla_host * ha,struct iscsi_iface_param_info * iface_param,struct addr_ctrl_blk * init_fw_cb)2035 static void qla4xxx_set_ipv6(struct scsi_qla_host *ha,
2036 struct iscsi_iface_param_info *iface_param,
2037 struct addr_ctrl_blk *init_fw_cb)
2038 {
2039 /*
2040 * iface_num 0 is valid for IPv6 Addr, linklocal, router, autocfg.
2041 * iface_num 1 is valid only for IPv6 Addr.
2042 */
2043 switch (iface_param->param) {
2044 case ISCSI_NET_PARAM_IPV6_ADDR:
2045 if (iface_param->iface_num & 0x1)
2046 /* IPv6 Addr 1 */
2047 memcpy(init_fw_cb->ipv6_addr1, iface_param->value,
2048 sizeof(init_fw_cb->ipv6_addr1));
2049 else
2050 /* IPv6 Addr 0 */
2051 memcpy(init_fw_cb->ipv6_addr0, iface_param->value,
2052 sizeof(init_fw_cb->ipv6_addr0));
2053 break;
2054 case ISCSI_NET_PARAM_IPV6_LINKLOCAL:
2055 if (iface_param->iface_num & 0x1)
2056 break;
2057 memcpy(init_fw_cb->ipv6_if_id, &iface_param->value[8],
2058 sizeof(init_fw_cb->ipv6_if_id));
2059 break;
2060 case ISCSI_NET_PARAM_IPV6_ROUTER:
2061 if (iface_param->iface_num & 0x1)
2062 break;
2063 memcpy(init_fw_cb->ipv6_dflt_rtr_addr, iface_param->value,
2064 sizeof(init_fw_cb->ipv6_dflt_rtr_addr));
2065 break;
2066 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG:
2067 /* Autocfg applies to even interface */
2068 if (iface_param->iface_num & 0x1)
2069 break;
2070
2071 if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_DISABLE)
2072 init_fw_cb->ipv6_addtl_opts &=
2073 cpu_to_le16(
2074 ~IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE);
2075 else if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_ND_ENABLE)
2076 init_fw_cb->ipv6_addtl_opts |=
2077 cpu_to_le16(
2078 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE);
2079 else
2080 ql4_printk(KERN_ERR, ha,
2081 "Invalid autocfg setting for IPv6 addr\n");
2082 break;
2083 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG:
2084 /* Autocfg applies to even interface */
2085 if (iface_param->iface_num & 0x1)
2086 break;
2087
2088 if (iface_param->value[0] ==
2089 ISCSI_IPV6_LINKLOCAL_AUTOCFG_ENABLE)
2090 init_fw_cb->ipv6_addtl_opts |= cpu_to_le16(
2091 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR);
2092 else if (iface_param->value[0] ==
2093 ISCSI_IPV6_LINKLOCAL_AUTOCFG_DISABLE)
2094 init_fw_cb->ipv6_addtl_opts &= cpu_to_le16(
2095 ~IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR);
2096 else
2097 ql4_printk(KERN_ERR, ha,
2098 "Invalid autocfg setting for IPv6 linklocal addr\n");
2099 break;
2100 case ISCSI_NET_PARAM_IPV6_ROUTER_AUTOCFG:
2101 /* Autocfg applies to even interface */
2102 if (iface_param->iface_num & 0x1)
2103 break;
2104
2105 if (iface_param->value[0] == ISCSI_IPV6_ROUTER_AUTOCFG_ENABLE)
2106 memset(init_fw_cb->ipv6_dflt_rtr_addr, 0,
2107 sizeof(init_fw_cb->ipv6_dflt_rtr_addr));
2108 break;
2109 case ISCSI_NET_PARAM_IFACE_ENABLE:
2110 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) {
2111 init_fw_cb->ipv6_opts |=
2112 cpu_to_le16(IPV6_OPT_IPV6_PROTOCOL_ENABLE);
2113 qla4xxx_create_ipv6_iface(ha);
2114 } else {
2115 init_fw_cb->ipv6_opts &=
2116 cpu_to_le16(~IPV6_OPT_IPV6_PROTOCOL_ENABLE &
2117 0xFFFF);
2118 qla4xxx_destroy_ipv6_iface(ha);
2119 }
2120 break;
2121 case ISCSI_NET_PARAM_VLAN_TAG:
2122 if (iface_param->len != sizeof(init_fw_cb->ipv6_vlan_tag))
2123 break;
2124 init_fw_cb->ipv6_vlan_tag =
2125 cpu_to_be16(*(uint16_t *)iface_param->value);
2126 break;
2127 case ISCSI_NET_PARAM_VLAN_ENABLED:
2128 if (iface_param->value[0] == ISCSI_VLAN_ENABLE)
2129 init_fw_cb->ipv6_opts |=
2130 cpu_to_le16(IPV6_OPT_VLAN_TAGGING_ENABLE);
2131 else
2132 init_fw_cb->ipv6_opts &=
2133 cpu_to_le16(~IPV6_OPT_VLAN_TAGGING_ENABLE);
2134 break;
2135 case ISCSI_NET_PARAM_MTU:
2136 init_fw_cb->eth_mtu_size =
2137 cpu_to_le16(*(uint16_t *)iface_param->value);
2138 break;
2139 case ISCSI_NET_PARAM_PORT:
2140 /* Autocfg applies to even interface */
2141 if (iface_param->iface_num & 0x1)
2142 break;
2143
2144 init_fw_cb->ipv6_port =
2145 cpu_to_le16(*(uint16_t *)iface_param->value);
2146 break;
2147 case ISCSI_NET_PARAM_DELAYED_ACK_EN:
2148 if (iface_param->iface_num & 0x1)
2149 break;
2150 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2151 init_fw_cb->ipv6_tcp_opts |=
2152 cpu_to_le16(IPV6_TCPOPT_DELAYED_ACK_DISABLE);
2153 else
2154 init_fw_cb->ipv6_tcp_opts &=
2155 cpu_to_le16(~IPV6_TCPOPT_DELAYED_ACK_DISABLE &
2156 0xFFFF);
2157 break;
2158 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE:
2159 if (iface_param->iface_num & 0x1)
2160 break;
2161 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2162 init_fw_cb->ipv6_tcp_opts |=
2163 cpu_to_le16(IPV6_TCPOPT_NAGLE_ALGO_DISABLE);
2164 else
2165 init_fw_cb->ipv6_tcp_opts &=
2166 cpu_to_le16(~IPV6_TCPOPT_NAGLE_ALGO_DISABLE);
2167 break;
2168 case ISCSI_NET_PARAM_TCP_WSF_DISABLE:
2169 if (iface_param->iface_num & 0x1)
2170 break;
2171 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2172 init_fw_cb->ipv6_tcp_opts |=
2173 cpu_to_le16(IPV6_TCPOPT_WINDOW_SCALE_DISABLE);
2174 else
2175 init_fw_cb->ipv6_tcp_opts &=
2176 cpu_to_le16(~IPV6_TCPOPT_WINDOW_SCALE_DISABLE);
2177 break;
2178 case ISCSI_NET_PARAM_TCP_WSF:
2179 if (iface_param->iface_num & 0x1)
2180 break;
2181 init_fw_cb->ipv6_tcp_wsf = iface_param->value[0];
2182 break;
2183 case ISCSI_NET_PARAM_TCP_TIMER_SCALE:
2184 if (iface_param->iface_num & 0x1)
2185 break;
2186 init_fw_cb->ipv6_tcp_opts &=
2187 cpu_to_le16(~IPV6_TCPOPT_TIMER_SCALE);
2188 init_fw_cb->ipv6_tcp_opts |=
2189 cpu_to_le16((iface_param->value[0] << 1) &
2190 IPV6_TCPOPT_TIMER_SCALE);
2191 break;
2192 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN:
2193 if (iface_param->iface_num & 0x1)
2194 break;
2195 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2196 init_fw_cb->ipv6_tcp_opts |=
2197 cpu_to_le16(IPV6_TCPOPT_TIMESTAMP_EN);
2198 else
2199 init_fw_cb->ipv6_tcp_opts &=
2200 cpu_to_le16(~IPV6_TCPOPT_TIMESTAMP_EN);
2201 break;
2202 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN:
2203 if (iface_param->iface_num & 0x1)
2204 break;
2205 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2206 init_fw_cb->ipv6_opts |=
2207 cpu_to_le16(IPV6_OPT_GRAT_NEIGHBOR_ADV_EN);
2208 else
2209 init_fw_cb->ipv6_opts &=
2210 cpu_to_le16(~IPV6_OPT_GRAT_NEIGHBOR_ADV_EN);
2211 break;
2212 case ISCSI_NET_PARAM_REDIRECT_EN:
2213 if (iface_param->iface_num & 0x1)
2214 break;
2215 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2216 init_fw_cb->ipv6_opts |=
2217 cpu_to_le16(IPV6_OPT_REDIRECT_EN);
2218 else
2219 init_fw_cb->ipv6_opts &=
2220 cpu_to_le16(~IPV6_OPT_REDIRECT_EN);
2221 break;
2222 case ISCSI_NET_PARAM_IPV6_MLD_EN:
2223 if (iface_param->iface_num & 0x1)
2224 break;
2225 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2226 init_fw_cb->ipv6_addtl_opts |=
2227 cpu_to_le16(IPV6_ADDOPT_MLD_EN);
2228 else
2229 init_fw_cb->ipv6_addtl_opts &=
2230 cpu_to_le16(~IPV6_ADDOPT_MLD_EN);
2231 break;
2232 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL:
2233 if (iface_param->iface_num & 0x1)
2234 break;
2235 init_fw_cb->ipv6_flow_lbl =
2236 cpu_to_le16(*(uint16_t *)iface_param->value);
2237 break;
2238 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS:
2239 if (iface_param->iface_num & 0x1)
2240 break;
2241 init_fw_cb->ipv6_traffic_class = iface_param->value[0];
2242 break;
2243 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT:
2244 if (iface_param->iface_num & 0x1)
2245 break;
2246 init_fw_cb->ipv6_hop_limit = iface_param->value[0];
2247 break;
2248 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO:
2249 if (iface_param->iface_num & 0x1)
2250 break;
2251 init_fw_cb->ipv6_nd_reach_time =
2252 cpu_to_le32(*(uint32_t *)iface_param->value);
2253 break;
2254 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME:
2255 if (iface_param->iface_num & 0x1)
2256 break;
2257 init_fw_cb->ipv6_nd_rexmit_timer =
2258 cpu_to_le32(*(uint32_t *)iface_param->value);
2259 break;
2260 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO:
2261 if (iface_param->iface_num & 0x1)
2262 break;
2263 init_fw_cb->ipv6_nd_stale_timeout =
2264 cpu_to_le32(*(uint32_t *)iface_param->value);
2265 break;
2266 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT:
2267 if (iface_param->iface_num & 0x1)
2268 break;
2269 init_fw_cb->ipv6_dup_addr_detect_count = iface_param->value[0];
2270 break;
2271 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU:
2272 if (iface_param->iface_num & 0x1)
2273 break;
2274 init_fw_cb->ipv6_gw_advrt_mtu =
2275 cpu_to_le32(*(uint32_t *)iface_param->value);
2276 break;
2277 default:
2278 ql4_printk(KERN_ERR, ha, "Unknown IPv6 param = %d\n",
2279 iface_param->param);
2280 break;
2281 }
2282 }
2283
qla4xxx_set_ipv4(struct scsi_qla_host * ha,struct iscsi_iface_param_info * iface_param,struct addr_ctrl_blk * init_fw_cb)2284 static void qla4xxx_set_ipv4(struct scsi_qla_host *ha,
2285 struct iscsi_iface_param_info *iface_param,
2286 struct addr_ctrl_blk *init_fw_cb)
2287 {
2288 switch (iface_param->param) {
2289 case ISCSI_NET_PARAM_IPV4_ADDR:
2290 memcpy(init_fw_cb->ipv4_addr, iface_param->value,
2291 sizeof(init_fw_cb->ipv4_addr));
2292 break;
2293 case ISCSI_NET_PARAM_IPV4_SUBNET:
2294 memcpy(init_fw_cb->ipv4_subnet, iface_param->value,
2295 sizeof(init_fw_cb->ipv4_subnet));
2296 break;
2297 case ISCSI_NET_PARAM_IPV4_GW:
2298 memcpy(init_fw_cb->ipv4_gw_addr, iface_param->value,
2299 sizeof(init_fw_cb->ipv4_gw_addr));
2300 break;
2301 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
2302 if (iface_param->value[0] == ISCSI_BOOTPROTO_DHCP)
2303 init_fw_cb->ipv4_tcp_opts |=
2304 cpu_to_le16(TCPOPT_DHCP_ENABLE);
2305 else if (iface_param->value[0] == ISCSI_BOOTPROTO_STATIC)
2306 init_fw_cb->ipv4_tcp_opts &=
2307 cpu_to_le16(~TCPOPT_DHCP_ENABLE);
2308 else
2309 ql4_printk(KERN_ERR, ha, "Invalid IPv4 bootproto\n");
2310 break;
2311 case ISCSI_NET_PARAM_IFACE_ENABLE:
2312 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) {
2313 init_fw_cb->ipv4_ip_opts |=
2314 cpu_to_le16(IPOPT_IPV4_PROTOCOL_ENABLE);
2315 qla4xxx_create_ipv4_iface(ha);
2316 } else {
2317 init_fw_cb->ipv4_ip_opts &=
2318 cpu_to_le16(~IPOPT_IPV4_PROTOCOL_ENABLE &
2319 0xFFFF);
2320 qla4xxx_destroy_ipv4_iface(ha);
2321 }
2322 break;
2323 case ISCSI_NET_PARAM_VLAN_TAG:
2324 if (iface_param->len != sizeof(init_fw_cb->ipv4_vlan_tag))
2325 break;
2326 init_fw_cb->ipv4_vlan_tag =
2327 cpu_to_be16(*(uint16_t *)iface_param->value);
2328 break;
2329 case ISCSI_NET_PARAM_VLAN_ENABLED:
2330 if (iface_param->value[0] == ISCSI_VLAN_ENABLE)
2331 init_fw_cb->ipv4_ip_opts |=
2332 cpu_to_le16(IPOPT_VLAN_TAGGING_ENABLE);
2333 else
2334 init_fw_cb->ipv4_ip_opts &=
2335 cpu_to_le16(~IPOPT_VLAN_TAGGING_ENABLE);
2336 break;
2337 case ISCSI_NET_PARAM_MTU:
2338 init_fw_cb->eth_mtu_size =
2339 cpu_to_le16(*(uint16_t *)iface_param->value);
2340 break;
2341 case ISCSI_NET_PARAM_PORT:
2342 init_fw_cb->ipv4_port =
2343 cpu_to_le16(*(uint16_t *)iface_param->value);
2344 break;
2345 case ISCSI_NET_PARAM_DELAYED_ACK_EN:
2346 if (iface_param->iface_num & 0x1)
2347 break;
2348 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2349 init_fw_cb->ipv4_tcp_opts |=
2350 cpu_to_le16(TCPOPT_DELAYED_ACK_DISABLE);
2351 else
2352 init_fw_cb->ipv4_tcp_opts &=
2353 cpu_to_le16(~TCPOPT_DELAYED_ACK_DISABLE &
2354 0xFFFF);
2355 break;
2356 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE:
2357 if (iface_param->iface_num & 0x1)
2358 break;
2359 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2360 init_fw_cb->ipv4_tcp_opts |=
2361 cpu_to_le16(TCPOPT_NAGLE_ALGO_DISABLE);
2362 else
2363 init_fw_cb->ipv4_tcp_opts &=
2364 cpu_to_le16(~TCPOPT_NAGLE_ALGO_DISABLE);
2365 break;
2366 case ISCSI_NET_PARAM_TCP_WSF_DISABLE:
2367 if (iface_param->iface_num & 0x1)
2368 break;
2369 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2370 init_fw_cb->ipv4_tcp_opts |=
2371 cpu_to_le16(TCPOPT_WINDOW_SCALE_DISABLE);
2372 else
2373 init_fw_cb->ipv4_tcp_opts &=
2374 cpu_to_le16(~TCPOPT_WINDOW_SCALE_DISABLE);
2375 break;
2376 case ISCSI_NET_PARAM_TCP_WSF:
2377 if (iface_param->iface_num & 0x1)
2378 break;
2379 init_fw_cb->ipv4_tcp_wsf = iface_param->value[0];
2380 break;
2381 case ISCSI_NET_PARAM_TCP_TIMER_SCALE:
2382 if (iface_param->iface_num & 0x1)
2383 break;
2384 init_fw_cb->ipv4_tcp_opts &= cpu_to_le16(~TCPOPT_TIMER_SCALE);
2385 init_fw_cb->ipv4_tcp_opts |=
2386 cpu_to_le16((iface_param->value[0] << 1) &
2387 TCPOPT_TIMER_SCALE);
2388 break;
2389 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN:
2390 if (iface_param->iface_num & 0x1)
2391 break;
2392 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2393 init_fw_cb->ipv4_tcp_opts |=
2394 cpu_to_le16(TCPOPT_TIMESTAMP_ENABLE);
2395 else
2396 init_fw_cb->ipv4_tcp_opts &=
2397 cpu_to_le16(~TCPOPT_TIMESTAMP_ENABLE);
2398 break;
2399 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN:
2400 if (iface_param->iface_num & 0x1)
2401 break;
2402 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2403 init_fw_cb->ipv4_tcp_opts |=
2404 cpu_to_le16(TCPOPT_DNS_SERVER_IP_EN);
2405 else
2406 init_fw_cb->ipv4_tcp_opts &=
2407 cpu_to_le16(~TCPOPT_DNS_SERVER_IP_EN);
2408 break;
2409 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN:
2410 if (iface_param->iface_num & 0x1)
2411 break;
2412 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2413 init_fw_cb->ipv4_tcp_opts |=
2414 cpu_to_le16(TCPOPT_SLP_DA_INFO_EN);
2415 else
2416 init_fw_cb->ipv4_tcp_opts &=
2417 cpu_to_le16(~TCPOPT_SLP_DA_INFO_EN);
2418 break;
2419 case ISCSI_NET_PARAM_IPV4_TOS_EN:
2420 if (iface_param->iface_num & 0x1)
2421 break;
2422 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2423 init_fw_cb->ipv4_ip_opts |=
2424 cpu_to_le16(IPOPT_IPV4_TOS_EN);
2425 else
2426 init_fw_cb->ipv4_ip_opts &=
2427 cpu_to_le16(~IPOPT_IPV4_TOS_EN);
2428 break;
2429 case ISCSI_NET_PARAM_IPV4_TOS:
2430 if (iface_param->iface_num & 0x1)
2431 break;
2432 init_fw_cb->ipv4_tos = iface_param->value[0];
2433 break;
2434 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN:
2435 if (iface_param->iface_num & 0x1)
2436 break;
2437 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2438 init_fw_cb->ipv4_ip_opts |=
2439 cpu_to_le16(IPOPT_GRAT_ARP_EN);
2440 else
2441 init_fw_cb->ipv4_ip_opts &=
2442 cpu_to_le16(~IPOPT_GRAT_ARP_EN);
2443 break;
2444 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN:
2445 if (iface_param->iface_num & 0x1)
2446 break;
2447 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2448 init_fw_cb->ipv4_ip_opts |=
2449 cpu_to_le16(IPOPT_ALT_CID_EN);
2450 else
2451 init_fw_cb->ipv4_ip_opts &=
2452 cpu_to_le16(~IPOPT_ALT_CID_EN);
2453 break;
2454 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID:
2455 if (iface_param->iface_num & 0x1)
2456 break;
2457 memcpy(init_fw_cb->ipv4_dhcp_alt_cid, iface_param->value,
2458 (sizeof(init_fw_cb->ipv4_dhcp_alt_cid) - 1));
2459 init_fw_cb->ipv4_dhcp_alt_cid_len =
2460 strlen(init_fw_cb->ipv4_dhcp_alt_cid);
2461 break;
2462 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN:
2463 if (iface_param->iface_num & 0x1)
2464 break;
2465 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2466 init_fw_cb->ipv4_ip_opts |=
2467 cpu_to_le16(IPOPT_REQ_VID_EN);
2468 else
2469 init_fw_cb->ipv4_ip_opts &=
2470 cpu_to_le16(~IPOPT_REQ_VID_EN);
2471 break;
2472 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN:
2473 if (iface_param->iface_num & 0x1)
2474 break;
2475 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2476 init_fw_cb->ipv4_ip_opts |=
2477 cpu_to_le16(IPOPT_USE_VID_EN);
2478 else
2479 init_fw_cb->ipv4_ip_opts &=
2480 cpu_to_le16(~IPOPT_USE_VID_EN);
2481 break;
2482 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID:
2483 if (iface_param->iface_num & 0x1)
2484 break;
2485 memcpy(init_fw_cb->ipv4_dhcp_vid, iface_param->value,
2486 (sizeof(init_fw_cb->ipv4_dhcp_vid) - 1));
2487 init_fw_cb->ipv4_dhcp_vid_len =
2488 strlen(init_fw_cb->ipv4_dhcp_vid);
2489 break;
2490 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN:
2491 if (iface_param->iface_num & 0x1)
2492 break;
2493 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2494 init_fw_cb->ipv4_ip_opts |=
2495 cpu_to_le16(IPOPT_LEARN_IQN_EN);
2496 else
2497 init_fw_cb->ipv4_ip_opts &=
2498 cpu_to_le16(~IPOPT_LEARN_IQN_EN);
2499 break;
2500 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE:
2501 if (iface_param->iface_num & 0x1)
2502 break;
2503 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2504 init_fw_cb->ipv4_ip_opts |=
2505 cpu_to_le16(IPOPT_FRAGMENTATION_DISABLE);
2506 else
2507 init_fw_cb->ipv4_ip_opts &=
2508 cpu_to_le16(~IPOPT_FRAGMENTATION_DISABLE);
2509 break;
2510 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN:
2511 if (iface_param->iface_num & 0x1)
2512 break;
2513 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2514 init_fw_cb->ipv4_ip_opts |=
2515 cpu_to_le16(IPOPT_IN_FORWARD_EN);
2516 else
2517 init_fw_cb->ipv4_ip_opts &=
2518 cpu_to_le16(~IPOPT_IN_FORWARD_EN);
2519 break;
2520 case ISCSI_NET_PARAM_REDIRECT_EN:
2521 if (iface_param->iface_num & 0x1)
2522 break;
2523 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2524 init_fw_cb->ipv4_ip_opts |=
2525 cpu_to_le16(IPOPT_ARP_REDIRECT_EN);
2526 else
2527 init_fw_cb->ipv4_ip_opts &=
2528 cpu_to_le16(~IPOPT_ARP_REDIRECT_EN);
2529 break;
2530 case ISCSI_NET_PARAM_IPV4_TTL:
2531 if (iface_param->iface_num & 0x1)
2532 break;
2533 init_fw_cb->ipv4_ttl = iface_param->value[0];
2534 break;
2535 default:
2536 ql4_printk(KERN_ERR, ha, "Unknown IPv4 param = %d\n",
2537 iface_param->param);
2538 break;
2539 }
2540 }
2541
qla4xxx_set_iscsi_param(struct scsi_qla_host * ha,struct iscsi_iface_param_info * iface_param,struct addr_ctrl_blk * init_fw_cb)2542 static void qla4xxx_set_iscsi_param(struct scsi_qla_host *ha,
2543 struct iscsi_iface_param_info *iface_param,
2544 struct addr_ctrl_blk *init_fw_cb)
2545 {
2546 switch (iface_param->param) {
2547 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO:
2548 if (iface_param->iface_num & 0x1)
2549 break;
2550 init_fw_cb->def_timeout =
2551 cpu_to_le16(*(uint16_t *)iface_param->value);
2552 break;
2553 case ISCSI_IFACE_PARAM_HDRDGST_EN:
2554 if (iface_param->iface_num & 0x1)
2555 break;
2556 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2557 init_fw_cb->iscsi_opts |=
2558 cpu_to_le16(ISCSIOPTS_HEADER_DIGEST_EN);
2559 else
2560 init_fw_cb->iscsi_opts &=
2561 cpu_to_le16(~ISCSIOPTS_HEADER_DIGEST_EN);
2562 break;
2563 case ISCSI_IFACE_PARAM_DATADGST_EN:
2564 if (iface_param->iface_num & 0x1)
2565 break;
2566 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2567 init_fw_cb->iscsi_opts |=
2568 cpu_to_le16(ISCSIOPTS_DATA_DIGEST_EN);
2569 else
2570 init_fw_cb->iscsi_opts &=
2571 cpu_to_le16(~ISCSIOPTS_DATA_DIGEST_EN);
2572 break;
2573 case ISCSI_IFACE_PARAM_IMM_DATA_EN:
2574 if (iface_param->iface_num & 0x1)
2575 break;
2576 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2577 init_fw_cb->iscsi_opts |=
2578 cpu_to_le16(ISCSIOPTS_IMMEDIATE_DATA_EN);
2579 else
2580 init_fw_cb->iscsi_opts &=
2581 cpu_to_le16(~ISCSIOPTS_IMMEDIATE_DATA_EN);
2582 break;
2583 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN:
2584 if (iface_param->iface_num & 0x1)
2585 break;
2586 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2587 init_fw_cb->iscsi_opts |=
2588 cpu_to_le16(ISCSIOPTS_INITIAL_R2T_EN);
2589 else
2590 init_fw_cb->iscsi_opts &=
2591 cpu_to_le16(~ISCSIOPTS_INITIAL_R2T_EN);
2592 break;
2593 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN:
2594 if (iface_param->iface_num & 0x1)
2595 break;
2596 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2597 init_fw_cb->iscsi_opts |=
2598 cpu_to_le16(ISCSIOPTS_DATA_SEQ_INORDER_EN);
2599 else
2600 init_fw_cb->iscsi_opts &=
2601 cpu_to_le16(~ISCSIOPTS_DATA_SEQ_INORDER_EN);
2602 break;
2603 case ISCSI_IFACE_PARAM_PDU_INORDER_EN:
2604 if (iface_param->iface_num & 0x1)
2605 break;
2606 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2607 init_fw_cb->iscsi_opts |=
2608 cpu_to_le16(ISCSIOPTS_DATA_PDU_INORDER_EN);
2609 else
2610 init_fw_cb->iscsi_opts &=
2611 cpu_to_le16(~ISCSIOPTS_DATA_PDU_INORDER_EN);
2612 break;
2613 case ISCSI_IFACE_PARAM_ERL:
2614 if (iface_param->iface_num & 0x1)
2615 break;
2616 init_fw_cb->iscsi_opts &= cpu_to_le16(~ISCSIOPTS_ERL);
2617 init_fw_cb->iscsi_opts |= cpu_to_le16(iface_param->value[0] &
2618 ISCSIOPTS_ERL);
2619 break;
2620 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH:
2621 if (iface_param->iface_num & 0x1)
2622 break;
2623 init_fw_cb->iscsi_max_pdu_size =
2624 cpu_to_le32(*(uint32_t *)iface_param->value) /
2625 BYTE_UNITS;
2626 break;
2627 case ISCSI_IFACE_PARAM_FIRST_BURST:
2628 if (iface_param->iface_num & 0x1)
2629 break;
2630 init_fw_cb->iscsi_fburst_len =
2631 cpu_to_le32(*(uint32_t *)iface_param->value) /
2632 BYTE_UNITS;
2633 break;
2634 case ISCSI_IFACE_PARAM_MAX_R2T:
2635 if (iface_param->iface_num & 0x1)
2636 break;
2637 init_fw_cb->iscsi_max_outstnd_r2t =
2638 cpu_to_le16(*(uint16_t *)iface_param->value);
2639 break;
2640 case ISCSI_IFACE_PARAM_MAX_BURST:
2641 if (iface_param->iface_num & 0x1)
2642 break;
2643 init_fw_cb->iscsi_max_burst_len =
2644 cpu_to_le32(*(uint32_t *)iface_param->value) /
2645 BYTE_UNITS;
2646 break;
2647 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN:
2648 if (iface_param->iface_num & 0x1)
2649 break;
2650 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2651 init_fw_cb->iscsi_opts |=
2652 cpu_to_le16(ISCSIOPTS_CHAP_AUTH_EN);
2653 else
2654 init_fw_cb->iscsi_opts &=
2655 cpu_to_le16(~ISCSIOPTS_CHAP_AUTH_EN);
2656 break;
2657 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN:
2658 if (iface_param->iface_num & 0x1)
2659 break;
2660 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2661 init_fw_cb->iscsi_opts |=
2662 cpu_to_le16(ISCSIOPTS_BIDI_CHAP_EN);
2663 else
2664 init_fw_cb->iscsi_opts &=
2665 cpu_to_le16(~ISCSIOPTS_BIDI_CHAP_EN);
2666 break;
2667 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL:
2668 if (iface_param->iface_num & 0x1)
2669 break;
2670 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2671 init_fw_cb->iscsi_opts |=
2672 cpu_to_le16(ISCSIOPTS_DISCOVERY_AUTH_EN);
2673 else
2674 init_fw_cb->iscsi_opts &=
2675 cpu_to_le16(~ISCSIOPTS_DISCOVERY_AUTH_EN);
2676 break;
2677 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN:
2678 if (iface_param->iface_num & 0x1)
2679 break;
2680 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2681 init_fw_cb->iscsi_opts |=
2682 cpu_to_le16(ISCSIOPTS_DISCOVERY_LOGOUT_EN);
2683 else
2684 init_fw_cb->iscsi_opts &=
2685 cpu_to_le16(~ISCSIOPTS_DISCOVERY_LOGOUT_EN);
2686 break;
2687 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN:
2688 if (iface_param->iface_num & 0x1)
2689 break;
2690 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2691 init_fw_cb->iscsi_opts |=
2692 cpu_to_le16(ISCSIOPTS_STRICT_LOGIN_COMP_EN);
2693 else
2694 init_fw_cb->iscsi_opts &=
2695 cpu_to_le16(~ISCSIOPTS_STRICT_LOGIN_COMP_EN);
2696 break;
2697 default:
2698 ql4_printk(KERN_ERR, ha, "Unknown iscsi param = %d\n",
2699 iface_param->param);
2700 break;
2701 }
2702 }
2703
2704 static void
qla4xxx_initcb_to_acb(struct addr_ctrl_blk * init_fw_cb)2705 qla4xxx_initcb_to_acb(struct addr_ctrl_blk *init_fw_cb)
2706 {
2707 struct addr_ctrl_blk_def *acb;
2708 acb = (struct addr_ctrl_blk_def *)init_fw_cb;
2709 memset(acb->reserved1, 0, sizeof(acb->reserved1));
2710 memset(acb->reserved2, 0, sizeof(acb->reserved2));
2711 memset(acb->reserved3, 0, sizeof(acb->reserved3));
2712 memset(acb->reserved4, 0, sizeof(acb->reserved4));
2713 memset(acb->reserved5, 0, sizeof(acb->reserved5));
2714 memset(acb->reserved6, 0, sizeof(acb->reserved6));
2715 memset(acb->reserved7, 0, sizeof(acb->reserved7));
2716 memset(acb->reserved8, 0, sizeof(acb->reserved8));
2717 memset(acb->reserved9, 0, sizeof(acb->reserved9));
2718 memset(acb->reserved10, 0, sizeof(acb->reserved10));
2719 memset(acb->reserved11, 0, sizeof(acb->reserved11));
2720 memset(acb->reserved12, 0, sizeof(acb->reserved12));
2721 memset(acb->reserved13, 0, sizeof(acb->reserved13));
2722 memset(acb->reserved14, 0, sizeof(acb->reserved14));
2723 memset(acb->reserved15, 0, sizeof(acb->reserved15));
2724 }
2725
2726 static int
qla4xxx_iface_set_param(struct Scsi_Host * shost,void * data,uint32_t len)2727 qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data, uint32_t len)
2728 {
2729 struct scsi_qla_host *ha = to_qla_host(shost);
2730 int rval = 0;
2731 struct iscsi_iface_param_info *iface_param = NULL;
2732 struct addr_ctrl_blk *init_fw_cb = NULL;
2733 dma_addr_t init_fw_cb_dma;
2734 uint32_t mbox_cmd[MBOX_REG_COUNT];
2735 uint32_t mbox_sts[MBOX_REG_COUNT];
2736 uint32_t rem = len;
2737 struct nlattr *attr;
2738
2739 init_fw_cb = dma_alloc_coherent(&ha->pdev->dev,
2740 sizeof(struct addr_ctrl_blk),
2741 &init_fw_cb_dma, GFP_KERNEL);
2742 if (!init_fw_cb) {
2743 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc init_cb\n",
2744 __func__);
2745 return -ENOMEM;
2746 }
2747
2748 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
2749 memset(&mbox_sts, 0, sizeof(mbox_sts));
2750
2751 if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma)) {
2752 ql4_printk(KERN_ERR, ha, "%s: get ifcb failed\n", __func__);
2753 rval = -EIO;
2754 goto exit_init_fw_cb;
2755 }
2756
2757 nla_for_each_attr(attr, data, len, rem) {
2758 if (nla_len(attr) < sizeof(*iface_param)) {
2759 rval = -EINVAL;
2760 goto exit_init_fw_cb;
2761 }
2762
2763 iface_param = nla_data(attr);
2764
2765 if (iface_param->param_type == ISCSI_NET_PARAM) {
2766 switch (iface_param->iface_type) {
2767 case ISCSI_IFACE_TYPE_IPV4:
2768 switch (iface_param->iface_num) {
2769 case 0:
2770 qla4xxx_set_ipv4(ha, iface_param,
2771 init_fw_cb);
2772 break;
2773 default:
2774 /* Cannot have more than one IPv4 interface */
2775 ql4_printk(KERN_ERR, ha,
2776 "Invalid IPv4 iface number = %d\n",
2777 iface_param->iface_num);
2778 break;
2779 }
2780 break;
2781 case ISCSI_IFACE_TYPE_IPV6:
2782 switch (iface_param->iface_num) {
2783 case 0:
2784 case 1:
2785 qla4xxx_set_ipv6(ha, iface_param,
2786 init_fw_cb);
2787 break;
2788 default:
2789 /* Cannot have more than two IPv6 interface */
2790 ql4_printk(KERN_ERR, ha,
2791 "Invalid IPv6 iface number = %d\n",
2792 iface_param->iface_num);
2793 break;
2794 }
2795 break;
2796 default:
2797 ql4_printk(KERN_ERR, ha,
2798 "Invalid iface type\n");
2799 break;
2800 }
2801 } else if (iface_param->param_type == ISCSI_IFACE_PARAM) {
2802 qla4xxx_set_iscsi_param(ha, iface_param,
2803 init_fw_cb);
2804 } else {
2805 continue;
2806 }
2807 }
2808
2809 init_fw_cb->cookie = cpu_to_le32(0x11BEAD5A);
2810
2811 rval = qla4xxx_set_flash(ha, init_fw_cb_dma, FLASH_SEGMENT_IFCB,
2812 sizeof(struct addr_ctrl_blk),
2813 FLASH_OPT_RMW_COMMIT);
2814 if (rval != QLA_SUCCESS) {
2815 ql4_printk(KERN_ERR, ha, "%s: set flash mbx failed\n",
2816 __func__);
2817 rval = -EIO;
2818 goto exit_init_fw_cb;
2819 }
2820
2821 rval = qla4xxx_disable_acb(ha);
2822 if (rval != QLA_SUCCESS) {
2823 ql4_printk(KERN_ERR, ha, "%s: disable acb mbx failed\n",
2824 __func__);
2825 rval = -EIO;
2826 goto exit_init_fw_cb;
2827 }
2828
2829 wait_for_completion_timeout(&ha->disable_acb_comp,
2830 DISABLE_ACB_TOV * HZ);
2831
2832 qla4xxx_initcb_to_acb(init_fw_cb);
2833
2834 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma);
2835 if (rval != QLA_SUCCESS) {
2836 ql4_printk(KERN_ERR, ha, "%s: set acb mbx failed\n",
2837 __func__);
2838 rval = -EIO;
2839 goto exit_init_fw_cb;
2840 }
2841
2842 memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk));
2843 qla4xxx_update_local_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb,
2844 init_fw_cb_dma);
2845
2846 exit_init_fw_cb:
2847 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk),
2848 init_fw_cb, init_fw_cb_dma);
2849
2850 return rval;
2851 }
2852
qla4xxx_session_get_param(struct iscsi_cls_session * cls_sess,enum iscsi_param param,char * buf)2853 static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess,
2854 enum iscsi_param param, char *buf)
2855 {
2856 struct iscsi_session *sess = cls_sess->dd_data;
2857 struct ddb_entry *ddb_entry = sess->dd_data;
2858 struct scsi_qla_host *ha = ddb_entry->ha;
2859 struct iscsi_cls_conn *cls_conn = ddb_entry->conn;
2860 struct ql4_chap_table chap_tbl;
2861 int rval, len;
2862 uint16_t idx;
2863
2864 memset(&chap_tbl, 0, sizeof(chap_tbl));
2865 switch (param) {
2866 case ISCSI_PARAM_CHAP_IN_IDX:
2867 rval = qla4xxx_get_chap_index(ha, sess->username_in,
2868 sess->password_in, BIDI_CHAP,
2869 &idx);
2870 if (rval)
2871 len = sprintf(buf, "\n");
2872 else
2873 len = sprintf(buf, "%hu\n", idx);
2874 break;
2875 case ISCSI_PARAM_CHAP_OUT_IDX:
2876 if (ddb_entry->ddb_type == FLASH_DDB) {
2877 if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) {
2878 idx = ddb_entry->chap_tbl_idx;
2879 rval = QLA_SUCCESS;
2880 } else {
2881 rval = QLA_ERROR;
2882 }
2883 } else {
2884 rval = qla4xxx_get_chap_index(ha, sess->username,
2885 sess->password,
2886 LOCAL_CHAP, &idx);
2887 }
2888 if (rval)
2889 len = sprintf(buf, "\n");
2890 else
2891 len = sprintf(buf, "%hu\n", idx);
2892 break;
2893 case ISCSI_PARAM_USERNAME:
2894 case ISCSI_PARAM_PASSWORD:
2895 /* First, populate session username and password for FLASH DDB,
2896 * if not already done. This happens when session login fails
2897 * for a FLASH DDB.
2898 */
2899 if (ddb_entry->ddb_type == FLASH_DDB &&
2900 ddb_entry->chap_tbl_idx != INVALID_ENTRY &&
2901 !sess->username && !sess->password) {
2902 idx = ddb_entry->chap_tbl_idx;
2903 rval = qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name,
2904 chap_tbl.secret,
2905 idx);
2906 if (!rval) {
2907 iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME,
2908 (char *)chap_tbl.name,
2909 strlen((char *)chap_tbl.name));
2910 iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD,
2911 (char *)chap_tbl.secret,
2912 chap_tbl.secret_len);
2913 }
2914 }
2915 fallthrough;
2916 default:
2917 return iscsi_session_get_param(cls_sess, param, buf);
2918 }
2919
2920 return len;
2921 }
2922
qla4xxx_conn_get_param(struct iscsi_cls_conn * cls_conn,enum iscsi_param param,char * buf)2923 static int qla4xxx_conn_get_param(struct iscsi_cls_conn *cls_conn,
2924 enum iscsi_param param, char *buf)
2925 {
2926 struct iscsi_conn *conn;
2927 struct qla_conn *qla_conn;
2928 struct sockaddr *dst_addr;
2929
2930 conn = cls_conn->dd_data;
2931 qla_conn = conn->dd_data;
2932 dst_addr = (struct sockaddr *)&qla_conn->qla_ep->dst_addr;
2933
2934 switch (param) {
2935 case ISCSI_PARAM_CONN_PORT:
2936 case ISCSI_PARAM_CONN_ADDRESS:
2937 return iscsi_conn_get_addr_param((struct sockaddr_storage *)
2938 dst_addr, param, buf);
2939 default:
2940 return iscsi_conn_get_param(cls_conn, param, buf);
2941 }
2942 }
2943
qla4xxx_get_ddb_index(struct scsi_qla_host * ha,uint16_t * ddb_index)2944 int qla4xxx_get_ddb_index(struct scsi_qla_host *ha, uint16_t *ddb_index)
2945 {
2946 uint32_t mbx_sts = 0;
2947 uint16_t tmp_ddb_index;
2948 int ret;
2949
2950 get_ddb_index:
2951 tmp_ddb_index = find_first_zero_bit(ha->ddb_idx_map, MAX_DDB_ENTRIES);
2952
2953 if (tmp_ddb_index >= MAX_DDB_ENTRIES) {
2954 DEBUG2(ql4_printk(KERN_INFO, ha,
2955 "Free DDB index not available\n"));
2956 ret = QLA_ERROR;
2957 goto exit_get_ddb_index;
2958 }
2959
2960 if (test_and_set_bit(tmp_ddb_index, ha->ddb_idx_map))
2961 goto get_ddb_index;
2962
2963 DEBUG2(ql4_printk(KERN_INFO, ha,
2964 "Found a free DDB index at %d\n", tmp_ddb_index));
2965 ret = qla4xxx_req_ddb_entry(ha, tmp_ddb_index, &mbx_sts);
2966 if (ret == QLA_ERROR) {
2967 if (mbx_sts == MBOX_STS_COMMAND_ERROR) {
2968 ql4_printk(KERN_INFO, ha,
2969 "DDB index = %d not available trying next\n",
2970 tmp_ddb_index);
2971 goto get_ddb_index;
2972 }
2973 DEBUG2(ql4_printk(KERN_INFO, ha,
2974 "Free FW DDB not available\n"));
2975 }
2976
2977 *ddb_index = tmp_ddb_index;
2978
2979 exit_get_ddb_index:
2980 return ret;
2981 }
2982
qla4xxx_match_ipaddress(struct scsi_qla_host * ha,struct ddb_entry * ddb_entry,char * existing_ipaddr,char * user_ipaddr)2983 static int qla4xxx_match_ipaddress(struct scsi_qla_host *ha,
2984 struct ddb_entry *ddb_entry,
2985 char *existing_ipaddr,
2986 char *user_ipaddr)
2987 {
2988 uint8_t dst_ipaddr[IPv6_ADDR_LEN];
2989 char formatted_ipaddr[DDB_IPADDR_LEN];
2990 int status = QLA_SUCCESS, ret = 0;
2991
2992 if (ddb_entry->fw_ddb_entry.options & DDB_OPT_IPV6_DEVICE) {
2993 ret = in6_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr,
2994 '\0', NULL);
2995 if (ret == 0) {
2996 status = QLA_ERROR;
2997 goto out_match;
2998 }
2999 ret = sprintf(formatted_ipaddr, "%pI6", dst_ipaddr);
3000 } else {
3001 ret = in4_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr,
3002 '\0', NULL);
3003 if (ret == 0) {
3004 status = QLA_ERROR;
3005 goto out_match;
3006 }
3007 ret = sprintf(formatted_ipaddr, "%pI4", dst_ipaddr);
3008 }
3009
3010 if (strcmp(existing_ipaddr, formatted_ipaddr))
3011 status = QLA_ERROR;
3012
3013 out_match:
3014 return status;
3015 }
3016
qla4xxx_match_fwdb_session(struct scsi_qla_host * ha,struct iscsi_cls_conn * cls_conn)3017 static int qla4xxx_match_fwdb_session(struct scsi_qla_host *ha,
3018 struct iscsi_cls_conn *cls_conn)
3019 {
3020 int idx = 0, max_ddbs, rval;
3021 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
3022 struct iscsi_session *sess, *existing_sess;
3023 struct iscsi_conn *conn, *existing_conn;
3024 struct ddb_entry *ddb_entry;
3025
3026 sess = cls_sess->dd_data;
3027 conn = cls_conn->dd_data;
3028
3029 if (sess->targetname == NULL ||
3030 conn->persistent_address == NULL ||
3031 conn->persistent_port == 0)
3032 return QLA_ERROR;
3033
3034 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
3035 MAX_DEV_DB_ENTRIES;
3036
3037 for (idx = 0; idx < max_ddbs; idx++) {
3038 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
3039 if (ddb_entry == NULL)
3040 continue;
3041
3042 if (ddb_entry->ddb_type != FLASH_DDB)
3043 continue;
3044
3045 existing_sess = ddb_entry->sess->dd_data;
3046 existing_conn = ddb_entry->conn->dd_data;
3047
3048 if (existing_sess->targetname == NULL ||
3049 existing_conn->persistent_address == NULL ||
3050 existing_conn->persistent_port == 0)
3051 continue;
3052
3053 DEBUG2(ql4_printk(KERN_INFO, ha,
3054 "IQN = %s User IQN = %s\n",
3055 existing_sess->targetname,
3056 sess->targetname));
3057
3058 DEBUG2(ql4_printk(KERN_INFO, ha,
3059 "IP = %s User IP = %s\n",
3060 existing_conn->persistent_address,
3061 conn->persistent_address));
3062
3063 DEBUG2(ql4_printk(KERN_INFO, ha,
3064 "Port = %d User Port = %d\n",
3065 existing_conn->persistent_port,
3066 conn->persistent_port));
3067
3068 if (strcmp(existing_sess->targetname, sess->targetname))
3069 continue;
3070 rval = qla4xxx_match_ipaddress(ha, ddb_entry,
3071 existing_conn->persistent_address,
3072 conn->persistent_address);
3073 if (rval == QLA_ERROR)
3074 continue;
3075 if (existing_conn->persistent_port != conn->persistent_port)
3076 continue;
3077 break;
3078 }
3079
3080 if (idx == max_ddbs)
3081 return QLA_ERROR;
3082
3083 DEBUG2(ql4_printk(KERN_INFO, ha,
3084 "Match found in fwdb sessions\n"));
3085 return QLA_SUCCESS;
3086 }
3087
3088 static struct iscsi_cls_session *
qla4xxx_session_create(struct iscsi_endpoint * ep,uint16_t cmds_max,uint16_t qdepth,uint32_t initial_cmdsn)3089 qla4xxx_session_create(struct iscsi_endpoint *ep,
3090 uint16_t cmds_max, uint16_t qdepth,
3091 uint32_t initial_cmdsn)
3092 {
3093 struct iscsi_cls_session *cls_sess;
3094 struct scsi_qla_host *ha;
3095 struct qla_endpoint *qla_ep;
3096 struct ddb_entry *ddb_entry;
3097 uint16_t ddb_index;
3098 struct iscsi_session *sess;
3099 int ret;
3100
3101 if (!ep) {
3102 printk(KERN_ERR "qla4xxx: missing ep.\n");
3103 return NULL;
3104 }
3105
3106 qla_ep = ep->dd_data;
3107 ha = to_qla_host(qla_ep->host);
3108 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__,
3109 ha->host_no));
3110
3111 ret = qla4xxx_get_ddb_index(ha, &ddb_index);
3112 if (ret == QLA_ERROR)
3113 return NULL;
3114
3115 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, qla_ep->host,
3116 cmds_max, sizeof(struct ddb_entry),
3117 sizeof(struct ql4_task_data),
3118 initial_cmdsn, ddb_index);
3119 if (!cls_sess)
3120 return NULL;
3121
3122 sess = cls_sess->dd_data;
3123 ddb_entry = sess->dd_data;
3124 ddb_entry->fw_ddb_index = ddb_index;
3125 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE;
3126 ddb_entry->ha = ha;
3127 ddb_entry->sess = cls_sess;
3128 ddb_entry->unblock_sess = qla4xxx_unblock_ddb;
3129 ddb_entry->ddb_change = qla4xxx_ddb_change;
3130 clear_bit(DDB_CONN_CLOSE_FAILURE, &ddb_entry->flags);
3131 cls_sess->recovery_tmo = ql4xsess_recovery_tmo;
3132 ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry;
3133 ha->tot_ddbs++;
3134
3135 return cls_sess;
3136 }
3137
qla4xxx_session_destroy(struct iscsi_cls_session * cls_sess)3138 static void qla4xxx_session_destroy(struct iscsi_cls_session *cls_sess)
3139 {
3140 struct iscsi_session *sess;
3141 struct ddb_entry *ddb_entry;
3142 struct scsi_qla_host *ha;
3143 unsigned long flags, wtime;
3144 struct dev_db_entry *fw_ddb_entry = NULL;
3145 dma_addr_t fw_ddb_entry_dma;
3146 uint32_t ddb_state;
3147 int ret;
3148
3149 sess = cls_sess->dd_data;
3150 ddb_entry = sess->dd_data;
3151 ha = ddb_entry->ha;
3152 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__,
3153 ha->host_no));
3154
3155 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3156 &fw_ddb_entry_dma, GFP_KERNEL);
3157 if (!fw_ddb_entry) {
3158 ql4_printk(KERN_ERR, ha,
3159 "%s: Unable to allocate dma buffer\n", __func__);
3160 goto destroy_session;
3161 }
3162
3163 wtime = jiffies + (HZ * LOGOUT_TOV);
3164 do {
3165 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
3166 fw_ddb_entry, fw_ddb_entry_dma,
3167 NULL, NULL, &ddb_state, NULL,
3168 NULL, NULL);
3169 if (ret == QLA_ERROR)
3170 goto destroy_session;
3171
3172 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) ||
3173 (ddb_state == DDB_DS_SESSION_FAILED))
3174 goto destroy_session;
3175
3176 schedule_timeout_uninterruptible(HZ);
3177 } while ((time_after(wtime, jiffies)));
3178
3179 destroy_session:
3180 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
3181 if (test_and_clear_bit(DDB_CONN_CLOSE_FAILURE, &ddb_entry->flags))
3182 clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map);
3183 spin_lock_irqsave(&ha->hardware_lock, flags);
3184 qla4xxx_free_ddb(ha, ddb_entry);
3185 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3186
3187 iscsi_session_teardown(cls_sess);
3188
3189 if (fw_ddb_entry)
3190 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3191 fw_ddb_entry, fw_ddb_entry_dma);
3192 }
3193
3194 static struct iscsi_cls_conn *
qla4xxx_conn_create(struct iscsi_cls_session * cls_sess,uint32_t conn_idx)3195 qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx)
3196 {
3197 struct iscsi_cls_conn *cls_conn;
3198 struct iscsi_session *sess;
3199 struct ddb_entry *ddb_entry;
3200 struct scsi_qla_host *ha;
3201
3202 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn),
3203 conn_idx);
3204 if (!cls_conn) {
3205 pr_info("%s: Can not create connection for conn_idx = %u\n",
3206 __func__, conn_idx);
3207 return NULL;
3208 }
3209
3210 sess = cls_sess->dd_data;
3211 ddb_entry = sess->dd_data;
3212 ddb_entry->conn = cls_conn;
3213
3214 ha = ddb_entry->ha;
3215 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: conn_idx = %u\n", __func__,
3216 conn_idx));
3217 return cls_conn;
3218 }
3219
qla4xxx_conn_bind(struct iscsi_cls_session * cls_session,struct iscsi_cls_conn * cls_conn,uint64_t transport_fd,int is_leading)3220 static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session,
3221 struct iscsi_cls_conn *cls_conn,
3222 uint64_t transport_fd, int is_leading)
3223 {
3224 struct iscsi_conn *conn;
3225 struct qla_conn *qla_conn;
3226 struct iscsi_endpoint *ep;
3227 struct ddb_entry *ddb_entry;
3228 struct scsi_qla_host *ha;
3229 struct iscsi_session *sess;
3230
3231 sess = cls_session->dd_data;
3232 ddb_entry = sess->dd_data;
3233 ha = ddb_entry->ha;
3234
3235 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: sid = %d, cid = %d\n", __func__,
3236 cls_session->sid, cls_conn->cid));
3237
3238 if (iscsi_conn_bind(cls_session, cls_conn, is_leading))
3239 return -EINVAL;
3240 ep = iscsi_lookup_endpoint(transport_fd);
3241 if (!ep)
3242 return -EINVAL;
3243 conn = cls_conn->dd_data;
3244 qla_conn = conn->dd_data;
3245 qla_conn->qla_ep = ep->dd_data;
3246 iscsi_put_endpoint(ep);
3247 return 0;
3248 }
3249
qla4xxx_conn_start(struct iscsi_cls_conn * cls_conn)3250 static int qla4xxx_conn_start(struct iscsi_cls_conn *cls_conn)
3251 {
3252 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
3253 struct iscsi_session *sess;
3254 struct ddb_entry *ddb_entry;
3255 struct scsi_qla_host *ha;
3256 struct dev_db_entry *fw_ddb_entry = NULL;
3257 dma_addr_t fw_ddb_entry_dma;
3258 uint32_t mbx_sts = 0;
3259 int ret = 0;
3260 int status = QLA_SUCCESS;
3261
3262 sess = cls_sess->dd_data;
3263 ddb_entry = sess->dd_data;
3264 ha = ddb_entry->ha;
3265 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: sid = %d, cid = %d\n", __func__,
3266 cls_sess->sid, cls_conn->cid));
3267
3268 /* Check if we have matching FW DDB, if yes then do not
3269 * login to this target. This could cause target to logout previous
3270 * connection
3271 */
3272 ret = qla4xxx_match_fwdb_session(ha, cls_conn);
3273 if (ret == QLA_SUCCESS) {
3274 ql4_printk(KERN_INFO, ha,
3275 "Session already exist in FW.\n");
3276 ret = -EEXIST;
3277 goto exit_conn_start;
3278 }
3279
3280 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3281 &fw_ddb_entry_dma, GFP_KERNEL);
3282 if (!fw_ddb_entry) {
3283 ql4_printk(KERN_ERR, ha,
3284 "%s: Unable to allocate dma buffer\n", __func__);
3285 ret = -ENOMEM;
3286 goto exit_conn_start;
3287 }
3288
3289 ret = qla4xxx_set_param_ddbentry(ha, ddb_entry, cls_conn, &mbx_sts);
3290 if (ret) {
3291 /* If iscsid is stopped and started then no need to do
3292 * set param again since ddb state will be already
3293 * active and FW does not allow set ddb to an
3294 * active session.
3295 */
3296 if (mbx_sts)
3297 if (ddb_entry->fw_ddb_device_state ==
3298 DDB_DS_SESSION_ACTIVE) {
3299 ddb_entry->unblock_sess(ddb_entry->sess);
3300 goto exit_set_param;
3301 }
3302
3303 ql4_printk(KERN_ERR, ha, "%s: Failed set param for index[%d]\n",
3304 __func__, ddb_entry->fw_ddb_index);
3305 goto exit_conn_start;
3306 }
3307
3308 status = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index);
3309 if (status == QLA_ERROR) {
3310 ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__,
3311 sess->targetname);
3312 ret = -EINVAL;
3313 goto exit_conn_start;
3314 }
3315
3316 if (ddb_entry->fw_ddb_device_state == DDB_DS_NO_CONNECTION_ACTIVE)
3317 ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS;
3318
3319 DEBUG2(printk(KERN_INFO "%s: DDB state [%d]\n", __func__,
3320 ddb_entry->fw_ddb_device_state));
3321
3322 exit_set_param:
3323 ret = 0;
3324
3325 exit_conn_start:
3326 if (fw_ddb_entry)
3327 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3328 fw_ddb_entry, fw_ddb_entry_dma);
3329 return ret;
3330 }
3331
qla4xxx_conn_destroy(struct iscsi_cls_conn * cls_conn)3332 static void qla4xxx_conn_destroy(struct iscsi_cls_conn *cls_conn)
3333 {
3334 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
3335 struct iscsi_session *sess;
3336 struct scsi_qla_host *ha;
3337 struct ddb_entry *ddb_entry;
3338 int options;
3339
3340 sess = cls_sess->dd_data;
3341 ddb_entry = sess->dd_data;
3342 ha = ddb_entry->ha;
3343 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: cid = %d\n", __func__,
3344 cls_conn->cid));
3345
3346 options = LOGOUT_OPTION_CLOSE_SESSION;
3347 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR)
3348 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__);
3349 }
3350
qla4xxx_task_work(struct work_struct * wdata)3351 static void qla4xxx_task_work(struct work_struct *wdata)
3352 {
3353 struct ql4_task_data *task_data;
3354 struct scsi_qla_host *ha;
3355 struct passthru_status *sts;
3356 struct iscsi_task *task;
3357 struct iscsi_hdr *hdr;
3358 uint8_t *data;
3359 uint32_t data_len;
3360 struct iscsi_conn *conn;
3361 int hdr_len;
3362 itt_t itt;
3363
3364 task_data = container_of(wdata, struct ql4_task_data, task_work);
3365 ha = task_data->ha;
3366 task = task_data->task;
3367 sts = &task_data->sts;
3368 hdr_len = sizeof(struct iscsi_hdr);
3369
3370 DEBUG3(printk(KERN_INFO "Status returned\n"));
3371 DEBUG3(qla4xxx_dump_buffer(sts, 64));
3372 DEBUG3(printk(KERN_INFO "Response buffer"));
3373 DEBUG3(qla4xxx_dump_buffer(task_data->resp_buffer, 64));
3374
3375 conn = task->conn;
3376
3377 switch (sts->completionStatus) {
3378 case PASSTHRU_STATUS_COMPLETE:
3379 hdr = (struct iscsi_hdr *)task_data->resp_buffer;
3380 /* Assign back the itt in hdr, until we use the PREASSIGN_TAG */
3381 itt = sts->handle;
3382 hdr->itt = itt;
3383 data = task_data->resp_buffer + hdr_len;
3384 data_len = task_data->resp_len - hdr_len;
3385 iscsi_complete_pdu(conn, hdr, data, data_len);
3386 break;
3387 default:
3388 ql4_printk(KERN_ERR, ha, "Passthru failed status = 0x%x\n",
3389 sts->completionStatus);
3390 break;
3391 }
3392 return;
3393 }
3394
qla4xxx_alloc_pdu(struct iscsi_task * task,uint8_t opcode)3395 static int qla4xxx_alloc_pdu(struct iscsi_task *task, uint8_t opcode)
3396 {
3397 struct ql4_task_data *task_data;
3398 struct iscsi_session *sess;
3399 struct ddb_entry *ddb_entry;
3400 struct scsi_qla_host *ha;
3401 int hdr_len;
3402
3403 sess = task->conn->session;
3404 ddb_entry = sess->dd_data;
3405 ha = ddb_entry->ha;
3406 task_data = task->dd_data;
3407 memset(task_data, 0, sizeof(struct ql4_task_data));
3408
3409 if (task->sc) {
3410 ql4_printk(KERN_INFO, ha,
3411 "%s: SCSI Commands not implemented\n", __func__);
3412 return -EINVAL;
3413 }
3414
3415 hdr_len = sizeof(struct iscsi_hdr);
3416 task_data->ha = ha;
3417 task_data->task = task;
3418
3419 if (task->data_count) {
3420 task_data->data_dma = dma_map_single(&ha->pdev->dev, task->data,
3421 task->data_count,
3422 DMA_TO_DEVICE);
3423 }
3424
3425 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n",
3426 __func__, task->conn->max_recv_dlength, hdr_len));
3427
3428 task_data->resp_len = task->conn->max_recv_dlength + hdr_len;
3429 task_data->resp_buffer = dma_alloc_coherent(&ha->pdev->dev,
3430 task_data->resp_len,
3431 &task_data->resp_dma,
3432 GFP_ATOMIC);
3433 if (!task_data->resp_buffer)
3434 goto exit_alloc_pdu;
3435
3436 task_data->req_len = task->data_count + hdr_len;
3437 task_data->req_buffer = dma_alloc_coherent(&ha->pdev->dev,
3438 task_data->req_len,
3439 &task_data->req_dma,
3440 GFP_ATOMIC);
3441 if (!task_data->req_buffer)
3442 goto exit_alloc_pdu;
3443
3444 task->hdr = task_data->req_buffer;
3445
3446 INIT_WORK(&task_data->task_work, qla4xxx_task_work);
3447
3448 return 0;
3449
3450 exit_alloc_pdu:
3451 if (task_data->resp_buffer)
3452 dma_free_coherent(&ha->pdev->dev, task_data->resp_len,
3453 task_data->resp_buffer, task_data->resp_dma);
3454
3455 if (task_data->req_buffer)
3456 dma_free_coherent(&ha->pdev->dev, task_data->req_len,
3457 task_data->req_buffer, task_data->req_dma);
3458 return -ENOMEM;
3459 }
3460
qla4xxx_task_cleanup(struct iscsi_task * task)3461 static void qla4xxx_task_cleanup(struct iscsi_task *task)
3462 {
3463 struct ql4_task_data *task_data;
3464 struct iscsi_session *sess;
3465 struct ddb_entry *ddb_entry;
3466 struct scsi_qla_host *ha;
3467 int hdr_len;
3468
3469 hdr_len = sizeof(struct iscsi_hdr);
3470 sess = task->conn->session;
3471 ddb_entry = sess->dd_data;
3472 ha = ddb_entry->ha;
3473 task_data = task->dd_data;
3474
3475 if (task->data_count) {
3476 dma_unmap_single(&ha->pdev->dev, task_data->data_dma,
3477 task->data_count, DMA_TO_DEVICE);
3478 }
3479
3480 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n",
3481 __func__, task->conn->max_recv_dlength, hdr_len));
3482
3483 dma_free_coherent(&ha->pdev->dev, task_data->resp_len,
3484 task_data->resp_buffer, task_data->resp_dma);
3485 dma_free_coherent(&ha->pdev->dev, task_data->req_len,
3486 task_data->req_buffer, task_data->req_dma);
3487 return;
3488 }
3489
qla4xxx_task_xmit(struct iscsi_task * task)3490 static int qla4xxx_task_xmit(struct iscsi_task *task)
3491 {
3492 struct scsi_cmnd *sc = task->sc;
3493 struct iscsi_session *sess = task->conn->session;
3494 struct ddb_entry *ddb_entry = sess->dd_data;
3495 struct scsi_qla_host *ha = ddb_entry->ha;
3496
3497 if (!sc)
3498 return qla4xxx_send_passthru0(task);
3499
3500 ql4_printk(KERN_INFO, ha, "%s: scsi cmd xmit not implemented\n",
3501 __func__);
3502 return -ENOSYS;
3503 }
3504
qla4xxx_copy_from_fwddb_param(struct iscsi_bus_flash_session * sess,struct iscsi_bus_flash_conn * conn,struct dev_db_entry * fw_ddb_entry)3505 static int qla4xxx_copy_from_fwddb_param(struct iscsi_bus_flash_session *sess,
3506 struct iscsi_bus_flash_conn *conn,
3507 struct dev_db_entry *fw_ddb_entry)
3508 {
3509 unsigned long options = 0;
3510 int rc = 0;
3511
3512 options = le16_to_cpu(fw_ddb_entry->options);
3513 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options);
3514 if (test_bit(OPT_IPV6_DEVICE, &options)) {
3515 rc = iscsi_switch_str_param(&sess->portal_type,
3516 PORTAL_TYPE_IPV6);
3517 if (rc)
3518 goto exit_copy;
3519 } else {
3520 rc = iscsi_switch_str_param(&sess->portal_type,
3521 PORTAL_TYPE_IPV4);
3522 if (rc)
3523 goto exit_copy;
3524 }
3525
3526 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE,
3527 &options);
3528 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options);
3529 sess->entry_state = test_bit(OPT_ENTRY_STATE, &options);
3530
3531 options = le16_to_cpu(fw_ddb_entry->iscsi_options);
3532 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options);
3533 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options);
3534 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options);
3535 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options);
3536 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER,
3537 &options);
3538 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options);
3539 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options);
3540 conn->snack_req_en = test_bit(ISCSIOPT_SNACK_REQ_EN, &options);
3541 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN,
3542 &options);
3543 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options);
3544 sess->discovery_auth_optional =
3545 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options);
3546 if (test_bit(ISCSIOPT_ERL1, &options))
3547 sess->erl |= BIT_1;
3548 if (test_bit(ISCSIOPT_ERL0, &options))
3549 sess->erl |= BIT_0;
3550
3551 options = le16_to_cpu(fw_ddb_entry->tcp_options);
3552 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options);
3553 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options);
3554 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options);
3555 if (test_bit(TCPOPT_TIMER_SCALE3, &options))
3556 conn->tcp_timer_scale |= BIT_3;
3557 if (test_bit(TCPOPT_TIMER_SCALE2, &options))
3558 conn->tcp_timer_scale |= BIT_2;
3559 if (test_bit(TCPOPT_TIMER_SCALE1, &options))
3560 conn->tcp_timer_scale |= BIT_1;
3561
3562 conn->tcp_timer_scale >>= 1;
3563 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options);
3564
3565 options = le16_to_cpu(fw_ddb_entry->ip_options);
3566 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options);
3567
3568 conn->max_recv_dlength = BYTE_UNITS *
3569 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len);
3570 conn->max_xmit_dlength = BYTE_UNITS *
3571 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len);
3572 sess->first_burst = BYTE_UNITS *
3573 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len);
3574 sess->max_burst = BYTE_UNITS *
3575 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len);
3576 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t);
3577 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
3578 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain);
3579 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
3580 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss);
3581 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf;
3582 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf;
3583 conn->ipv6_flow_label = le16_to_cpu(fw_ddb_entry->ipv6_flow_lbl);
3584 conn->keepalive_timeout = le16_to_cpu(fw_ddb_entry->ka_timeout);
3585 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port);
3586 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn);
3587 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn);
3588 sess->discovery_parent_idx = le16_to_cpu(fw_ddb_entry->ddb_link);
3589 sess->discovery_parent_type = le16_to_cpu(fw_ddb_entry->ddb_link);
3590 sess->chap_out_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
3591 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid);
3592
3593 sess->default_taskmgmt_timeout =
3594 le16_to_cpu(fw_ddb_entry->def_timeout);
3595 conn->port = le16_to_cpu(fw_ddb_entry->port);
3596
3597 options = le16_to_cpu(fw_ddb_entry->options);
3598 conn->ipaddress = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL);
3599 if (!conn->ipaddress) {
3600 rc = -ENOMEM;
3601 goto exit_copy;
3602 }
3603
3604 conn->redirect_ipaddr = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL);
3605 if (!conn->redirect_ipaddr) {
3606 rc = -ENOMEM;
3607 goto exit_copy;
3608 }
3609
3610 memcpy(conn->ipaddress, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN);
3611 memcpy(conn->redirect_ipaddr, fw_ddb_entry->tgt_addr, IPv6_ADDR_LEN);
3612
3613 if (test_bit(OPT_IPV6_DEVICE, &options)) {
3614 conn->ipv6_traffic_class = fw_ddb_entry->ipv4_tos;
3615
3616 conn->link_local_ipv6_addr = kmemdup(
3617 fw_ddb_entry->link_local_ipv6_addr,
3618 IPv6_ADDR_LEN, GFP_KERNEL);
3619 if (!conn->link_local_ipv6_addr) {
3620 rc = -ENOMEM;
3621 goto exit_copy;
3622 }
3623 } else {
3624 conn->ipv4_tos = fw_ddb_entry->ipv4_tos;
3625 }
3626
3627 if (fw_ddb_entry->iscsi_name[0]) {
3628 rc = iscsi_switch_str_param(&sess->targetname,
3629 (char *)fw_ddb_entry->iscsi_name);
3630 if (rc)
3631 goto exit_copy;
3632 }
3633
3634 if (fw_ddb_entry->iscsi_alias[0]) {
3635 rc = iscsi_switch_str_param(&sess->targetalias,
3636 (char *)fw_ddb_entry->iscsi_alias);
3637 if (rc)
3638 goto exit_copy;
3639 }
3640
3641 COPY_ISID(sess->isid, fw_ddb_entry->isid);
3642
3643 exit_copy:
3644 return rc;
3645 }
3646
qla4xxx_copy_to_fwddb_param(struct iscsi_bus_flash_session * sess,struct iscsi_bus_flash_conn * conn,struct dev_db_entry * fw_ddb_entry)3647 static int qla4xxx_copy_to_fwddb_param(struct iscsi_bus_flash_session *sess,
3648 struct iscsi_bus_flash_conn *conn,
3649 struct dev_db_entry *fw_ddb_entry)
3650 {
3651 uint16_t options;
3652
3653 options = le16_to_cpu(fw_ddb_entry->options);
3654 SET_BITVAL(conn->is_fw_assigned_ipv6, options, BIT_11);
3655 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4))
3656 options |= BIT_8;
3657 else
3658 options &= ~BIT_8;
3659
3660 SET_BITVAL(sess->auto_snd_tgt_disable, options, BIT_6);
3661 SET_BITVAL(sess->discovery_sess, options, BIT_4);
3662 SET_BITVAL(sess->entry_state, options, BIT_3);
3663 fw_ddb_entry->options = cpu_to_le16(options);
3664
3665 options = le16_to_cpu(fw_ddb_entry->iscsi_options);
3666 SET_BITVAL(conn->hdrdgst_en, options, BIT_13);
3667 SET_BITVAL(conn->datadgst_en, options, BIT_12);
3668 SET_BITVAL(sess->imm_data_en, options, BIT_11);
3669 SET_BITVAL(sess->initial_r2t_en, options, BIT_10);
3670 SET_BITVAL(sess->dataseq_inorder_en, options, BIT_9);
3671 SET_BITVAL(sess->pdu_inorder_en, options, BIT_8);
3672 SET_BITVAL(sess->chap_auth_en, options, BIT_7);
3673 SET_BITVAL(conn->snack_req_en, options, BIT_6);
3674 SET_BITVAL(sess->discovery_logout_en, options, BIT_5);
3675 SET_BITVAL(sess->bidi_chap_en, options, BIT_4);
3676 SET_BITVAL(sess->discovery_auth_optional, options, BIT_3);
3677 SET_BITVAL(sess->erl & BIT_1, options, BIT_1);
3678 SET_BITVAL(sess->erl & BIT_0, options, BIT_0);
3679 fw_ddb_entry->iscsi_options = cpu_to_le16(options);
3680
3681 options = le16_to_cpu(fw_ddb_entry->tcp_options);
3682 SET_BITVAL(conn->tcp_timestamp_stat, options, BIT_6);
3683 SET_BITVAL(conn->tcp_nagle_disable, options, BIT_5);
3684 SET_BITVAL(conn->tcp_wsf_disable, options, BIT_4);
3685 SET_BITVAL(conn->tcp_timer_scale & BIT_2, options, BIT_3);
3686 SET_BITVAL(conn->tcp_timer_scale & BIT_1, options, BIT_2);
3687 SET_BITVAL(conn->tcp_timer_scale & BIT_0, options, BIT_1);
3688 SET_BITVAL(conn->tcp_timestamp_en, options, BIT_0);
3689 fw_ddb_entry->tcp_options = cpu_to_le16(options);
3690
3691 options = le16_to_cpu(fw_ddb_entry->ip_options);
3692 SET_BITVAL(conn->fragment_disable, options, BIT_4);
3693 fw_ddb_entry->ip_options = cpu_to_le16(options);
3694
3695 fw_ddb_entry->iscsi_max_outsnd_r2t = cpu_to_le16(sess->max_r2t);
3696 fw_ddb_entry->iscsi_max_rcv_data_seg_len =
3697 cpu_to_le16(conn->max_recv_dlength / BYTE_UNITS);
3698 fw_ddb_entry->iscsi_max_snd_data_seg_len =
3699 cpu_to_le16(conn->max_xmit_dlength / BYTE_UNITS);
3700 fw_ddb_entry->iscsi_first_burst_len =
3701 cpu_to_le16(sess->first_burst / BYTE_UNITS);
3702 fw_ddb_entry->iscsi_max_burst_len = cpu_to_le16(sess->max_burst /
3703 BYTE_UNITS);
3704 fw_ddb_entry->iscsi_def_time2wait = cpu_to_le16(sess->time2wait);
3705 fw_ddb_entry->iscsi_def_time2retain = cpu_to_le16(sess->time2retain);
3706 fw_ddb_entry->tgt_portal_grp = cpu_to_le16(sess->tpgt);
3707 fw_ddb_entry->mss = cpu_to_le16(conn->max_segment_size);
3708 fw_ddb_entry->tcp_xmt_wsf = (uint8_t) cpu_to_le32(conn->tcp_xmit_wsf);
3709 fw_ddb_entry->tcp_rcv_wsf = (uint8_t) cpu_to_le32(conn->tcp_recv_wsf);
3710 fw_ddb_entry->ipv6_flow_lbl = cpu_to_le16(conn->ipv6_flow_label);
3711 fw_ddb_entry->ka_timeout = cpu_to_le16(conn->keepalive_timeout);
3712 fw_ddb_entry->lcl_port = cpu_to_le16(conn->local_port);
3713 fw_ddb_entry->stat_sn = cpu_to_le32(conn->statsn);
3714 fw_ddb_entry->exp_stat_sn = cpu_to_le32(conn->exp_statsn);
3715 fw_ddb_entry->ddb_link = cpu_to_le16(sess->discovery_parent_idx);
3716 fw_ddb_entry->chap_tbl_idx = cpu_to_le16(sess->chap_out_idx);
3717 fw_ddb_entry->tsid = cpu_to_le16(sess->tsid);
3718 fw_ddb_entry->port = cpu_to_le16(conn->port);
3719 fw_ddb_entry->def_timeout =
3720 cpu_to_le16(sess->default_taskmgmt_timeout);
3721
3722 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4))
3723 fw_ddb_entry->ipv4_tos = conn->ipv6_traffic_class;
3724 else
3725 fw_ddb_entry->ipv4_tos = conn->ipv4_tos;
3726
3727 if (conn->ipaddress)
3728 memcpy(fw_ddb_entry->ip_addr, conn->ipaddress,
3729 sizeof(fw_ddb_entry->ip_addr));
3730
3731 if (conn->redirect_ipaddr)
3732 memcpy(fw_ddb_entry->tgt_addr, conn->redirect_ipaddr,
3733 sizeof(fw_ddb_entry->tgt_addr));
3734
3735 if (conn->link_local_ipv6_addr)
3736 memcpy(fw_ddb_entry->link_local_ipv6_addr,
3737 conn->link_local_ipv6_addr,
3738 sizeof(fw_ddb_entry->link_local_ipv6_addr));
3739
3740 if (sess->targetname)
3741 memcpy(fw_ddb_entry->iscsi_name, sess->targetname,
3742 sizeof(fw_ddb_entry->iscsi_name));
3743
3744 if (sess->targetalias)
3745 memcpy(fw_ddb_entry->iscsi_alias, sess->targetalias,
3746 sizeof(fw_ddb_entry->iscsi_alias));
3747
3748 COPY_ISID(fw_ddb_entry->isid, sess->isid);
3749
3750 return 0;
3751 }
3752
qla4xxx_copy_to_sess_conn_params(struct iscsi_conn * conn,struct iscsi_session * sess,struct dev_db_entry * fw_ddb_entry)3753 static void qla4xxx_copy_to_sess_conn_params(struct iscsi_conn *conn,
3754 struct iscsi_session *sess,
3755 struct dev_db_entry *fw_ddb_entry)
3756 {
3757 unsigned long options = 0;
3758 uint16_t ddb_link;
3759 uint16_t disc_parent;
3760 char ip_addr[DDB_IPADDR_LEN];
3761
3762 options = le16_to_cpu(fw_ddb_entry->options);
3763 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options);
3764 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE,
3765 &options);
3766 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options);
3767
3768 options = le16_to_cpu(fw_ddb_entry->iscsi_options);
3769 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options);
3770 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options);
3771 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options);
3772 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options);
3773 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER,
3774 &options);
3775 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options);
3776 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options);
3777 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN,
3778 &options);
3779 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options);
3780 sess->discovery_auth_optional =
3781 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options);
3782 if (test_bit(ISCSIOPT_ERL1, &options))
3783 sess->erl |= BIT_1;
3784 if (test_bit(ISCSIOPT_ERL0, &options))
3785 sess->erl |= BIT_0;
3786
3787 options = le16_to_cpu(fw_ddb_entry->tcp_options);
3788 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options);
3789 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options);
3790 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options);
3791 if (test_bit(TCPOPT_TIMER_SCALE3, &options))
3792 conn->tcp_timer_scale |= BIT_3;
3793 if (test_bit(TCPOPT_TIMER_SCALE2, &options))
3794 conn->tcp_timer_scale |= BIT_2;
3795 if (test_bit(TCPOPT_TIMER_SCALE1, &options))
3796 conn->tcp_timer_scale |= BIT_1;
3797
3798 conn->tcp_timer_scale >>= 1;
3799 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options);
3800
3801 options = le16_to_cpu(fw_ddb_entry->ip_options);
3802 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options);
3803
3804 conn->max_recv_dlength = BYTE_UNITS *
3805 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len);
3806 conn->max_xmit_dlength = BYTE_UNITS *
3807 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len);
3808 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t);
3809 sess->first_burst = BYTE_UNITS *
3810 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len);
3811 sess->max_burst = BYTE_UNITS *
3812 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len);
3813 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
3814 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain);
3815 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
3816 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss);
3817 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf;
3818 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf;
3819 conn->ipv4_tos = fw_ddb_entry->ipv4_tos;
3820 conn->keepalive_tmo = le16_to_cpu(fw_ddb_entry->ka_timeout);
3821 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port);
3822 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn);
3823 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn);
3824 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid);
3825 COPY_ISID(sess->isid, fw_ddb_entry->isid);
3826
3827 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
3828 if (ddb_link == DDB_ISNS)
3829 disc_parent = ISCSI_DISC_PARENT_ISNS;
3830 else if (ddb_link == DDB_NO_LINK)
3831 disc_parent = ISCSI_DISC_PARENT_UNKNOWN;
3832 else if (ddb_link < MAX_DDB_ENTRIES)
3833 disc_parent = ISCSI_DISC_PARENT_SENDTGT;
3834 else
3835 disc_parent = ISCSI_DISC_PARENT_UNKNOWN;
3836
3837 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_DISCOVERY_PARENT_TYPE,
3838 iscsi_get_discovery_parent_name(disc_parent), 0);
3839
3840 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_TARGET_ALIAS,
3841 (char *)fw_ddb_entry->iscsi_alias, 0);
3842
3843 options = le16_to_cpu(fw_ddb_entry->options);
3844 if (options & DDB_OPT_IPV6_DEVICE) {
3845 memset(ip_addr, 0, sizeof(ip_addr));
3846 sprintf(ip_addr, "%pI6", fw_ddb_entry->link_local_ipv6_addr);
3847 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_LOCAL_IPADDR,
3848 (char *)ip_addr, 0);
3849 }
3850 }
3851
qla4xxx_copy_fwddb_param(struct scsi_qla_host * ha,struct dev_db_entry * fw_ddb_entry,struct iscsi_cls_session * cls_sess,struct iscsi_cls_conn * cls_conn)3852 static void qla4xxx_copy_fwddb_param(struct scsi_qla_host *ha,
3853 struct dev_db_entry *fw_ddb_entry,
3854 struct iscsi_cls_session *cls_sess,
3855 struct iscsi_cls_conn *cls_conn)
3856 {
3857 int buflen = 0;
3858 struct iscsi_session *sess;
3859 struct ddb_entry *ddb_entry;
3860 struct ql4_chap_table chap_tbl;
3861 struct iscsi_conn *conn;
3862 char ip_addr[DDB_IPADDR_LEN];
3863 uint16_t options = 0;
3864
3865 sess = cls_sess->dd_data;
3866 ddb_entry = sess->dd_data;
3867 conn = cls_conn->dd_data;
3868 memset(&chap_tbl, 0, sizeof(chap_tbl));
3869
3870 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
3871
3872 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry);
3873
3874 sess->def_taskmgmt_tmo = le16_to_cpu(fw_ddb_entry->def_timeout);
3875 conn->persistent_port = le16_to_cpu(fw_ddb_entry->port);
3876
3877 memset(ip_addr, 0, sizeof(ip_addr));
3878 options = le16_to_cpu(fw_ddb_entry->options);
3879 if (options & DDB_OPT_IPV6_DEVICE) {
3880 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv6", 4);
3881
3882 memset(ip_addr, 0, sizeof(ip_addr));
3883 sprintf(ip_addr, "%pI6", fw_ddb_entry->ip_addr);
3884 } else {
3885 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv4", 4);
3886 sprintf(ip_addr, "%pI4", fw_ddb_entry->ip_addr);
3887 }
3888
3889 iscsi_set_param(cls_conn, ISCSI_PARAM_PERSISTENT_ADDRESS,
3890 (char *)ip_addr, buflen);
3891 iscsi_set_param(cls_conn, ISCSI_PARAM_TARGET_NAME,
3892 (char *)fw_ddb_entry->iscsi_name, buflen);
3893 iscsi_set_param(cls_conn, ISCSI_PARAM_INITIATOR_NAME,
3894 (char *)ha->name_string, buflen);
3895
3896 if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) {
3897 if (!qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name,
3898 chap_tbl.secret,
3899 ddb_entry->chap_tbl_idx)) {
3900 iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME,
3901 (char *)chap_tbl.name,
3902 strlen((char *)chap_tbl.name));
3903 iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD,
3904 (char *)chap_tbl.secret,
3905 chap_tbl.secret_len);
3906 }
3907 }
3908 }
3909
qla4xxx_update_session_conn_fwddb_param(struct scsi_qla_host * ha,struct ddb_entry * ddb_entry)3910 void qla4xxx_update_session_conn_fwddb_param(struct scsi_qla_host *ha,
3911 struct ddb_entry *ddb_entry)
3912 {
3913 struct iscsi_cls_session *cls_sess;
3914 struct iscsi_cls_conn *cls_conn;
3915 uint32_t ddb_state;
3916 dma_addr_t fw_ddb_entry_dma;
3917 struct dev_db_entry *fw_ddb_entry;
3918
3919 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3920 &fw_ddb_entry_dma, GFP_KERNEL);
3921 if (!fw_ddb_entry) {
3922 ql4_printk(KERN_ERR, ha,
3923 "%s: Unable to allocate dma buffer\n", __func__);
3924 goto exit_session_conn_fwddb_param;
3925 }
3926
3927 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry,
3928 fw_ddb_entry_dma, NULL, NULL, &ddb_state,
3929 NULL, NULL, NULL) == QLA_ERROR) {
3930 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
3931 "get_ddb_entry for fw_ddb_index %d\n",
3932 ha->host_no, __func__,
3933 ddb_entry->fw_ddb_index));
3934 goto exit_session_conn_fwddb_param;
3935 }
3936
3937 cls_sess = ddb_entry->sess;
3938
3939 cls_conn = ddb_entry->conn;
3940
3941 /* Update params */
3942 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn);
3943
3944 exit_session_conn_fwddb_param:
3945 if (fw_ddb_entry)
3946 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3947 fw_ddb_entry, fw_ddb_entry_dma);
3948 }
3949
qla4xxx_update_session_conn_param(struct scsi_qla_host * ha,struct ddb_entry * ddb_entry)3950 void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha,
3951 struct ddb_entry *ddb_entry)
3952 {
3953 struct iscsi_cls_session *cls_sess;
3954 struct iscsi_cls_conn *cls_conn;
3955 struct iscsi_session *sess;
3956 struct iscsi_conn *conn;
3957 uint32_t ddb_state;
3958 dma_addr_t fw_ddb_entry_dma;
3959 struct dev_db_entry *fw_ddb_entry;
3960
3961 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3962 &fw_ddb_entry_dma, GFP_KERNEL);
3963 if (!fw_ddb_entry) {
3964 ql4_printk(KERN_ERR, ha,
3965 "%s: Unable to allocate dma buffer\n", __func__);
3966 goto exit_session_conn_param;
3967 }
3968
3969 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry,
3970 fw_ddb_entry_dma, NULL, NULL, &ddb_state,
3971 NULL, NULL, NULL) == QLA_ERROR) {
3972 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
3973 "get_ddb_entry for fw_ddb_index %d\n",
3974 ha->host_no, __func__,
3975 ddb_entry->fw_ddb_index));
3976 goto exit_session_conn_param;
3977 }
3978
3979 cls_sess = ddb_entry->sess;
3980 sess = cls_sess->dd_data;
3981
3982 cls_conn = ddb_entry->conn;
3983 conn = cls_conn->dd_data;
3984
3985 /* Update timers after login */
3986 ddb_entry->default_relogin_timeout =
3987 (le16_to_cpu(fw_ddb_entry->def_timeout) > LOGIN_TOV) &&
3988 (le16_to_cpu(fw_ddb_entry->def_timeout) < LOGIN_TOV * 10) ?
3989 le16_to_cpu(fw_ddb_entry->def_timeout) : LOGIN_TOV;
3990 ddb_entry->default_time2wait =
3991 le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
3992
3993 /* Update params */
3994 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
3995 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry);
3996
3997 memcpy(sess->initiatorname, ha->name_string,
3998 min(sizeof(ha->name_string), sizeof(sess->initiatorname)));
3999
4000 exit_session_conn_param:
4001 if (fw_ddb_entry)
4002 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
4003 fw_ddb_entry, fw_ddb_entry_dma);
4004 }
4005
4006 /*
4007 * Timer routines
4008 */
4009 static void qla4xxx_timer(struct timer_list *t);
4010
qla4xxx_start_timer(struct scsi_qla_host * ha,unsigned long interval)4011 static void qla4xxx_start_timer(struct scsi_qla_host *ha,
4012 unsigned long interval)
4013 {
4014 DEBUG(printk("scsi: %s: Starting timer thread for adapter %d\n",
4015 __func__, ha->host->host_no));
4016 timer_setup(&ha->timer, qla4xxx_timer, 0);
4017 ha->timer.expires = jiffies + interval * HZ;
4018 add_timer(&ha->timer);
4019 ha->timer_active = 1;
4020 }
4021
qla4xxx_stop_timer(struct scsi_qla_host * ha)4022 static void qla4xxx_stop_timer(struct scsi_qla_host *ha)
4023 {
4024 del_timer_sync(&ha->timer);
4025 ha->timer_active = 0;
4026 }
4027
4028 /***
4029 * qla4xxx_mark_device_missing - blocks the session
4030 * @cls_session: Pointer to the session to be blocked
4031 * @ddb_entry: Pointer to device database entry
4032 *
4033 * This routine marks a device missing and close connection.
4034 **/
qla4xxx_mark_device_missing(struct iscsi_cls_session * cls_session)4035 void qla4xxx_mark_device_missing(struct iscsi_cls_session *cls_session)
4036 {
4037 iscsi_block_session(cls_session);
4038 }
4039
4040 /**
4041 * qla4xxx_mark_all_devices_missing - mark all devices as missing.
4042 * @ha: Pointer to host adapter structure.
4043 *
4044 * This routine marks a device missing and resets the relogin retry count.
4045 **/
qla4xxx_mark_all_devices_missing(struct scsi_qla_host * ha)4046 void qla4xxx_mark_all_devices_missing(struct scsi_qla_host *ha)
4047 {
4048 iscsi_host_for_each_session(ha->host, qla4xxx_mark_device_missing);
4049 }
4050
qla4xxx_get_new_srb(struct scsi_qla_host * ha,struct ddb_entry * ddb_entry,struct scsi_cmnd * cmd)4051 static struct srb* qla4xxx_get_new_srb(struct scsi_qla_host *ha,
4052 struct ddb_entry *ddb_entry,
4053 struct scsi_cmnd *cmd)
4054 {
4055 struct srb *srb;
4056
4057 srb = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
4058 if (!srb)
4059 return srb;
4060
4061 kref_init(&srb->srb_ref);
4062 srb->ha = ha;
4063 srb->ddb = ddb_entry;
4064 srb->cmd = cmd;
4065 srb->flags = 0;
4066 qla4xxx_cmd_priv(cmd)->srb = srb;
4067
4068 return srb;
4069 }
4070
qla4xxx_srb_free_dma(struct scsi_qla_host * ha,struct srb * srb)4071 static void qla4xxx_srb_free_dma(struct scsi_qla_host *ha, struct srb *srb)
4072 {
4073 struct scsi_cmnd *cmd = srb->cmd;
4074
4075 if (srb->flags & SRB_DMA_VALID) {
4076 scsi_dma_unmap(cmd);
4077 srb->flags &= ~SRB_DMA_VALID;
4078 }
4079 qla4xxx_cmd_priv(cmd)->srb = NULL;
4080 }
4081
qla4xxx_srb_compl(struct kref * ref)4082 void qla4xxx_srb_compl(struct kref *ref)
4083 {
4084 struct srb *srb = container_of(ref, struct srb, srb_ref);
4085 struct scsi_cmnd *cmd = srb->cmd;
4086 struct scsi_qla_host *ha = srb->ha;
4087
4088 qla4xxx_srb_free_dma(ha, srb);
4089
4090 mempool_free(srb, ha->srb_mempool);
4091
4092 scsi_done(cmd);
4093 }
4094
4095 /**
4096 * qla4xxx_queuecommand - scsi layer issues scsi command to driver.
4097 * @host: scsi host
4098 * @cmd: Pointer to Linux's SCSI command structure
4099 *
4100 * Remarks:
4101 * This routine is invoked by Linux to send a SCSI command to the driver.
4102 * The mid-level driver tries to ensure that queuecommand never gets
4103 * invoked concurrently with itself or the interrupt handler (although
4104 * the interrupt handler may call this routine as part of request-
4105 * completion handling). Unfortunely, it sometimes calls the scheduler
4106 * in interrupt context which is a big NO! NO!.
4107 **/
qla4xxx_queuecommand(struct Scsi_Host * host,struct scsi_cmnd * cmd)4108 static int qla4xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
4109 {
4110 struct scsi_qla_host *ha = to_qla_host(host);
4111 struct ddb_entry *ddb_entry = cmd->device->hostdata;
4112 struct iscsi_cls_session *sess = ddb_entry->sess;
4113 struct srb *srb;
4114 int rval;
4115
4116 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
4117 if (test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags))
4118 cmd->result = DID_NO_CONNECT << 16;
4119 else
4120 cmd->result = DID_REQUEUE << 16;
4121 goto qc_fail_command;
4122 }
4123
4124 if (!sess) {
4125 cmd->result = DID_IMM_RETRY << 16;
4126 goto qc_fail_command;
4127 }
4128
4129 rval = iscsi_session_chkready(sess);
4130 if (rval) {
4131 cmd->result = rval;
4132 goto qc_fail_command;
4133 }
4134
4135 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
4136 test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) ||
4137 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
4138 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) ||
4139 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) ||
4140 !test_bit(AF_ONLINE, &ha->flags) ||
4141 !test_bit(AF_LINK_UP, &ha->flags) ||
4142 test_bit(AF_LOOPBACK, &ha->flags) ||
4143 test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags) ||
4144 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags) ||
4145 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))
4146 goto qc_host_busy;
4147
4148 srb = qla4xxx_get_new_srb(ha, ddb_entry, cmd);
4149 if (!srb)
4150 goto qc_host_busy;
4151
4152 rval = qla4xxx_send_command_to_isp(ha, srb);
4153 if (rval != QLA_SUCCESS)
4154 goto qc_host_busy_free_sp;
4155
4156 return 0;
4157
4158 qc_host_busy_free_sp:
4159 qla4xxx_srb_free_dma(ha, srb);
4160 mempool_free(srb, ha->srb_mempool);
4161
4162 qc_host_busy:
4163 return SCSI_MLQUEUE_HOST_BUSY;
4164
4165 qc_fail_command:
4166 scsi_done(cmd);
4167
4168 return 0;
4169 }
4170
4171 /**
4172 * qla4xxx_mem_free - frees memory allocated to adapter
4173 * @ha: Pointer to host adapter structure.
4174 *
4175 * Frees memory previously allocated by qla4xxx_mem_alloc
4176 **/
qla4xxx_mem_free(struct scsi_qla_host * ha)4177 static void qla4xxx_mem_free(struct scsi_qla_host *ha)
4178 {
4179 if (ha->queues)
4180 dma_free_coherent(&ha->pdev->dev, ha->queues_len, ha->queues,
4181 ha->queues_dma);
4182
4183 vfree(ha->fw_dump);
4184
4185 ha->queues_len = 0;
4186 ha->queues = NULL;
4187 ha->queues_dma = 0;
4188 ha->request_ring = NULL;
4189 ha->request_dma = 0;
4190 ha->response_ring = NULL;
4191 ha->response_dma = 0;
4192 ha->shadow_regs = NULL;
4193 ha->shadow_regs_dma = 0;
4194 ha->fw_dump = NULL;
4195 ha->fw_dump_size = 0;
4196
4197 /* Free srb pool. */
4198 mempool_destroy(ha->srb_mempool);
4199 ha->srb_mempool = NULL;
4200
4201 dma_pool_destroy(ha->chap_dma_pool);
4202
4203 vfree(ha->chap_list);
4204 ha->chap_list = NULL;
4205
4206 dma_pool_destroy(ha->fw_ddb_dma_pool);
4207
4208 /* release io space registers */
4209 if (is_qla8022(ha)) {
4210 if (ha->nx_pcibase)
4211 iounmap(
4212 (struct device_reg_82xx __iomem *)ha->nx_pcibase);
4213 } else if (is_qla8032(ha) || is_qla8042(ha)) {
4214 if (ha->nx_pcibase)
4215 iounmap(
4216 (struct device_reg_83xx __iomem *)ha->nx_pcibase);
4217 } else if (ha->reg) {
4218 iounmap(ha->reg);
4219 }
4220
4221 vfree(ha->reset_tmplt.buff);
4222
4223 pci_release_regions(ha->pdev);
4224 }
4225
4226 /**
4227 * qla4xxx_mem_alloc - allocates memory for use by adapter.
4228 * @ha: Pointer to host adapter structure
4229 *
4230 * Allocates DMA memory for request and response queues. Also allocates memory
4231 * for srbs.
4232 **/
qla4xxx_mem_alloc(struct scsi_qla_host * ha)4233 static int qla4xxx_mem_alloc(struct scsi_qla_host *ha)
4234 {
4235 unsigned long align;
4236
4237 /* Allocate contiguous block of DMA memory for queues. */
4238 ha->queues_len = ((REQUEST_QUEUE_DEPTH * QUEUE_SIZE) +
4239 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE) +
4240 sizeof(struct shadow_regs) +
4241 MEM_ALIGN_VALUE +
4242 (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
4243 ha->queues = dma_alloc_coherent(&ha->pdev->dev, ha->queues_len,
4244 &ha->queues_dma, GFP_KERNEL);
4245 if (ha->queues == NULL) {
4246 ql4_printk(KERN_WARNING, ha,
4247 "Memory Allocation failed - queues.\n");
4248
4249 goto mem_alloc_error_exit;
4250 }
4251
4252 /*
4253 * As per RISC alignment requirements -- the bus-address must be a
4254 * multiple of the request-ring size (in bytes).
4255 */
4256 align = 0;
4257 if ((unsigned long)ha->queues_dma & (MEM_ALIGN_VALUE - 1))
4258 align = MEM_ALIGN_VALUE - ((unsigned long)ha->queues_dma &
4259 (MEM_ALIGN_VALUE - 1));
4260
4261 /* Update request and response queue pointers. */
4262 ha->request_dma = ha->queues_dma + align;
4263 ha->request_ring = (struct queue_entry *) (ha->queues + align);
4264 ha->response_dma = ha->queues_dma + align +
4265 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE);
4266 ha->response_ring = (struct queue_entry *) (ha->queues + align +
4267 (REQUEST_QUEUE_DEPTH *
4268 QUEUE_SIZE));
4269 ha->shadow_regs_dma = ha->queues_dma + align +
4270 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE) +
4271 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE);
4272 ha->shadow_regs = (struct shadow_regs *) (ha->queues + align +
4273 (REQUEST_QUEUE_DEPTH *
4274 QUEUE_SIZE) +
4275 (RESPONSE_QUEUE_DEPTH *
4276 QUEUE_SIZE));
4277
4278 /* Allocate memory for srb pool. */
4279 ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab,
4280 mempool_free_slab, srb_cachep);
4281 if (ha->srb_mempool == NULL) {
4282 ql4_printk(KERN_WARNING, ha,
4283 "Memory Allocation failed - SRB Pool.\n");
4284
4285 goto mem_alloc_error_exit;
4286 }
4287
4288 ha->chap_dma_pool = dma_pool_create("ql4_chap", &ha->pdev->dev,
4289 CHAP_DMA_BLOCK_SIZE, 8, 0);
4290
4291 if (ha->chap_dma_pool == NULL) {
4292 ql4_printk(KERN_WARNING, ha,
4293 "%s: chap_dma_pool allocation failed..\n", __func__);
4294 goto mem_alloc_error_exit;
4295 }
4296
4297 ha->fw_ddb_dma_pool = dma_pool_create("ql4_fw_ddb", &ha->pdev->dev,
4298 DDB_DMA_BLOCK_SIZE, 8, 0);
4299
4300 if (ha->fw_ddb_dma_pool == NULL) {
4301 ql4_printk(KERN_WARNING, ha,
4302 "%s: fw_ddb_dma_pool allocation failed..\n",
4303 __func__);
4304 goto mem_alloc_error_exit;
4305 }
4306
4307 return QLA_SUCCESS;
4308
4309 mem_alloc_error_exit:
4310 return QLA_ERROR;
4311 }
4312
4313 /**
4314 * qla4_8xxx_check_temp - Check the ISP82XX temperature.
4315 * @ha: adapter block pointer.
4316 *
4317 * Note: The caller should not hold the idc lock.
4318 **/
qla4_8xxx_check_temp(struct scsi_qla_host * ha)4319 static int qla4_8xxx_check_temp(struct scsi_qla_host *ha)
4320 {
4321 uint32_t temp, temp_state, temp_val;
4322 int status = QLA_SUCCESS;
4323
4324 temp = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_TEMP_STATE);
4325
4326 temp_state = qla82xx_get_temp_state(temp);
4327 temp_val = qla82xx_get_temp_val(temp);
4328
4329 if (temp_state == QLA82XX_TEMP_PANIC) {
4330 ql4_printk(KERN_WARNING, ha, "Device temperature %d degrees C"
4331 " exceeds maximum allowed. Hardware has been shut"
4332 " down.\n", temp_val);
4333 status = QLA_ERROR;
4334 } else if (temp_state == QLA82XX_TEMP_WARN) {
4335 if (ha->temperature == QLA82XX_TEMP_NORMAL)
4336 ql4_printk(KERN_WARNING, ha, "Device temperature %d"
4337 " degrees C exceeds operating range."
4338 " Immediate action needed.\n", temp_val);
4339 } else {
4340 if (ha->temperature == QLA82XX_TEMP_WARN)
4341 ql4_printk(KERN_INFO, ha, "Device temperature is"
4342 " now %d degrees C in normal range.\n",
4343 temp_val);
4344 }
4345 ha->temperature = temp_state;
4346 return status;
4347 }
4348
4349 /**
4350 * qla4_8xxx_check_fw_alive - Check firmware health
4351 * @ha: Pointer to host adapter structure.
4352 *
4353 * Context: Interrupt
4354 **/
qla4_8xxx_check_fw_alive(struct scsi_qla_host * ha)4355 static int qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha)
4356 {
4357 uint32_t fw_heartbeat_counter;
4358 int status = QLA_SUCCESS;
4359
4360 fw_heartbeat_counter = qla4_8xxx_rd_direct(ha,
4361 QLA8XXX_PEG_ALIVE_COUNTER);
4362 /* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */
4363 if (fw_heartbeat_counter == 0xffffffff) {
4364 DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Device in frozen "
4365 "state, QLA82XX_PEG_ALIVE_COUNTER is 0xffffffff\n",
4366 ha->host_no, __func__));
4367 return status;
4368 }
4369
4370 if (ha->fw_heartbeat_counter == fw_heartbeat_counter) {
4371 ha->seconds_since_last_heartbeat++;
4372 /* FW not alive after 2 seconds */
4373 if (ha->seconds_since_last_heartbeat == 2) {
4374 ha->seconds_since_last_heartbeat = 0;
4375 qla4_8xxx_dump_peg_reg(ha);
4376 status = QLA_ERROR;
4377 }
4378 } else
4379 ha->seconds_since_last_heartbeat = 0;
4380
4381 ha->fw_heartbeat_counter = fw_heartbeat_counter;
4382 return status;
4383 }
4384
qla4_8xxx_process_fw_error(struct scsi_qla_host * ha)4385 static void qla4_8xxx_process_fw_error(struct scsi_qla_host *ha)
4386 {
4387 uint32_t halt_status;
4388 int halt_status_unrecoverable = 0;
4389
4390 halt_status = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_HALT_STATUS1);
4391
4392 if (is_qla8022(ha)) {
4393 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
4394 __func__);
4395 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
4396 CRB_NIU_XG_PAUSE_CTL_P0 |
4397 CRB_NIU_XG_PAUSE_CTL_P1);
4398
4399 if (QLA82XX_FWERROR_CODE(halt_status) == 0x67)
4400 ql4_printk(KERN_ERR, ha, "%s: Firmware aborted with error code 0x00006700. Device is being reset\n",
4401 __func__);
4402 if (halt_status & HALT_STATUS_UNRECOVERABLE)
4403 halt_status_unrecoverable = 1;
4404 } else if (is_qla8032(ha) || is_qla8042(ha)) {
4405 if (halt_status & QLA83XX_HALT_STATUS_FW_RESET)
4406 ql4_printk(KERN_ERR, ha, "%s: Firmware error detected device is being reset\n",
4407 __func__);
4408 else if (halt_status & QLA83XX_HALT_STATUS_UNRECOVERABLE)
4409 halt_status_unrecoverable = 1;
4410 }
4411
4412 /*
4413 * Since we cannot change dev_state in interrupt context,
4414 * set appropriate DPC flag then wakeup DPC
4415 */
4416 if (halt_status_unrecoverable) {
4417 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags);
4418 } else {
4419 ql4_printk(KERN_INFO, ha, "%s: detect abort needed!\n",
4420 __func__);
4421 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4422 }
4423 qla4xxx_mailbox_premature_completion(ha);
4424 qla4xxx_wake_dpc(ha);
4425 }
4426
4427 /**
4428 * qla4_8xxx_watchdog - Poll dev state
4429 * @ha: Pointer to host adapter structure.
4430 *
4431 * Context: Interrupt
4432 **/
qla4_8xxx_watchdog(struct scsi_qla_host * ha)4433 void qla4_8xxx_watchdog(struct scsi_qla_host *ha)
4434 {
4435 uint32_t dev_state;
4436 uint32_t idc_ctrl;
4437
4438 if (is_qla8032(ha) &&
4439 (qla4_83xx_is_detached(ha) == QLA_SUCCESS))
4440 WARN_ONCE(1, "%s: iSCSI function %d marked invisible\n",
4441 __func__, ha->func_num);
4442
4443 /* don't poll if reset is going on */
4444 if (!(test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) ||
4445 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
4446 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags))) {
4447 dev_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE);
4448
4449 if (qla4_8xxx_check_temp(ha)) {
4450 if (is_qla8022(ha)) {
4451 ql4_printk(KERN_INFO, ha, "disabling pause transmit on port 0 & 1.\n");
4452 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
4453 CRB_NIU_XG_PAUSE_CTL_P0 |
4454 CRB_NIU_XG_PAUSE_CTL_P1);
4455 }
4456 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags);
4457 qla4xxx_wake_dpc(ha);
4458 } else if (dev_state == QLA8XXX_DEV_NEED_RESET &&
4459 !test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
4460
4461 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED RESET!\n",
4462 __func__);
4463
4464 if (is_qla8032(ha) || is_qla8042(ha)) {
4465 idc_ctrl = qla4_83xx_rd_reg(ha,
4466 QLA83XX_IDC_DRV_CTRL);
4467 if (!(idc_ctrl & GRACEFUL_RESET_BIT1)) {
4468 ql4_printk(KERN_INFO, ha, "%s: Graceful reset bit is not set\n",
4469 __func__);
4470 qla4xxx_mailbox_premature_completion(
4471 ha);
4472 }
4473 }
4474
4475 if ((is_qla8032(ha) || is_qla8042(ha)) ||
4476 (is_qla8022(ha) && !ql4xdontresethba)) {
4477 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4478 qla4xxx_wake_dpc(ha);
4479 }
4480 } else if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT &&
4481 !test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) {
4482 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED QUIES!\n",
4483 __func__);
4484 set_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags);
4485 qla4xxx_wake_dpc(ha);
4486 } else {
4487 /* Check firmware health */
4488 if (qla4_8xxx_check_fw_alive(ha))
4489 qla4_8xxx_process_fw_error(ha);
4490 }
4491 }
4492 }
4493
qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session * cls_sess)4494 static void qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)
4495 {
4496 struct iscsi_session *sess;
4497 struct ddb_entry *ddb_entry;
4498 struct scsi_qla_host *ha;
4499
4500 sess = cls_sess->dd_data;
4501 ddb_entry = sess->dd_data;
4502 ha = ddb_entry->ha;
4503
4504 if (!(ddb_entry->ddb_type == FLASH_DDB))
4505 return;
4506
4507 if (adapter_up(ha) && !test_bit(DF_RELOGIN, &ddb_entry->flags) &&
4508 !iscsi_is_session_online(cls_sess)) {
4509 if (atomic_read(&ddb_entry->retry_relogin_timer) !=
4510 INVALID_ENTRY) {
4511 if (atomic_read(&ddb_entry->retry_relogin_timer) ==
4512 0) {
4513 atomic_set(&ddb_entry->retry_relogin_timer,
4514 INVALID_ENTRY);
4515 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
4516 set_bit(DF_RELOGIN, &ddb_entry->flags);
4517 DEBUG2(ql4_printk(KERN_INFO, ha,
4518 "%s: index [%d] login device\n",
4519 __func__, ddb_entry->fw_ddb_index));
4520 } else
4521 atomic_dec(&ddb_entry->retry_relogin_timer);
4522 }
4523 }
4524
4525 /* Wait for relogin to timeout */
4526 if (atomic_read(&ddb_entry->relogin_timer) &&
4527 (atomic_dec_and_test(&ddb_entry->relogin_timer) != 0)) {
4528 /*
4529 * If the relogin times out and the device is
4530 * still NOT ONLINE then try and relogin again.
4531 */
4532 if (!iscsi_is_session_online(cls_sess)) {
4533 /* Reset retry relogin timer */
4534 atomic_inc(&ddb_entry->relogin_retry_count);
4535 DEBUG2(ql4_printk(KERN_INFO, ha,
4536 "%s: index[%d] relogin timed out-retrying"
4537 " relogin (%d), retry (%d)\n", __func__,
4538 ddb_entry->fw_ddb_index,
4539 atomic_read(&ddb_entry->relogin_retry_count),
4540 ddb_entry->default_time2wait + 4));
4541 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
4542 atomic_set(&ddb_entry->retry_relogin_timer,
4543 ddb_entry->default_time2wait + 4);
4544 }
4545 }
4546 }
4547
4548 /**
4549 * qla4xxx_timer - checks every second for work to do.
4550 * @t: Context to obtain pointer to host adapter structure.
4551 **/
qla4xxx_timer(struct timer_list * t)4552 static void qla4xxx_timer(struct timer_list *t)
4553 {
4554 struct scsi_qla_host *ha = from_timer(ha, t, timer);
4555 int start_dpc = 0;
4556 uint16_t w;
4557
4558 iscsi_host_for_each_session(ha->host, qla4xxx_check_relogin_flash_ddb);
4559
4560 /* If we are in the middle of AER/EEH processing
4561 * skip any processing and reschedule the timer
4562 */
4563 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
4564 mod_timer(&ha->timer, jiffies + HZ);
4565 return;
4566 }
4567
4568 /* Hardware read to trigger an EEH error during mailbox waits. */
4569 if (!pci_channel_offline(ha->pdev))
4570 pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
4571
4572 if (is_qla80XX(ha))
4573 qla4_8xxx_watchdog(ha);
4574
4575 if (is_qla40XX(ha)) {
4576 /* Check for heartbeat interval. */
4577 if (ha->firmware_options & FWOPT_HEARTBEAT_ENABLE &&
4578 ha->heartbeat_interval != 0) {
4579 ha->seconds_since_last_heartbeat++;
4580 if (ha->seconds_since_last_heartbeat >
4581 ha->heartbeat_interval + 2)
4582 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4583 }
4584 }
4585
4586 /* Process any deferred work. */
4587 if (!list_empty(&ha->work_list))
4588 start_dpc++;
4589
4590 /* Wakeup the dpc routine for this adapter, if needed. */
4591 if (start_dpc ||
4592 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
4593 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags) ||
4594 test_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags) ||
4595 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) ||
4596 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
4597 test_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags) ||
4598 test_bit(DPC_LINK_CHANGED, &ha->dpc_flags) ||
4599 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) ||
4600 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) ||
4601 test_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags) ||
4602 test_bit(DPC_AEN, &ha->dpc_flags)) {
4603 DEBUG2(printk("scsi%ld: %s: scheduling dpc routine"
4604 " - dpc flags = 0x%lx\n",
4605 ha->host_no, __func__, ha->dpc_flags));
4606 qla4xxx_wake_dpc(ha);
4607 }
4608
4609 /* Reschedule timer thread to call us back in one second */
4610 mod_timer(&ha->timer, jiffies + HZ);
4611
4612 DEBUG2(ha->seconds_since_last_intr++);
4613 }
4614
4615 /**
4616 * qla4xxx_cmd_wait - waits for all outstanding commands to complete
4617 * @ha: Pointer to host adapter structure.
4618 *
4619 * This routine stalls the driver until all outstanding commands are returned.
4620 * Caller must release the Hardware Lock prior to calling this routine.
4621 **/
qla4xxx_cmd_wait(struct scsi_qla_host * ha)4622 static int qla4xxx_cmd_wait(struct scsi_qla_host *ha)
4623 {
4624 uint32_t index = 0;
4625 unsigned long flags;
4626 struct scsi_cmnd *cmd;
4627 unsigned long wtime;
4628 uint32_t wtmo;
4629
4630 if (is_qla40XX(ha))
4631 wtmo = WAIT_CMD_TOV;
4632 else
4633 wtmo = ha->nx_reset_timeout / 2;
4634
4635 wtime = jiffies + (wtmo * HZ);
4636
4637 DEBUG2(ql4_printk(KERN_INFO, ha,
4638 "Wait up to %u seconds for cmds to complete\n",
4639 wtmo));
4640
4641 while (!time_after_eq(jiffies, wtime)) {
4642 spin_lock_irqsave(&ha->hardware_lock, flags);
4643 /* Find a command that hasn't completed. */
4644 for (index = 0; index < ha->host->can_queue; index++) {
4645 cmd = scsi_host_find_tag(ha->host, index);
4646 /*
4647 * We cannot just check if the index is valid,
4648 * becase if we are run from the scsi eh, then
4649 * the scsi/block layer is going to prevent
4650 * the tag from being released.
4651 */
4652 if (cmd != NULL && qla4xxx_cmd_priv(cmd)->srb)
4653 break;
4654 }
4655 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4656
4657 /* If No Commands are pending, wait is complete */
4658 if (index == ha->host->can_queue)
4659 return QLA_SUCCESS;
4660
4661 msleep(1000);
4662 }
4663 /* If we timed out on waiting for commands to come back
4664 * return ERROR. */
4665 return QLA_ERROR;
4666 }
4667
qla4xxx_hw_reset(struct scsi_qla_host * ha)4668 int qla4xxx_hw_reset(struct scsi_qla_host *ha)
4669 {
4670 uint32_t ctrl_status;
4671 unsigned long flags = 0;
4672
4673 DEBUG2(printk(KERN_ERR "scsi%ld: %s\n", ha->host_no, __func__));
4674
4675 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS)
4676 return QLA_ERROR;
4677
4678 spin_lock_irqsave(&ha->hardware_lock, flags);
4679
4680 /*
4681 * If the SCSI Reset Interrupt bit is set, clear it.
4682 * Otherwise, the Soft Reset won't work.
4683 */
4684 ctrl_status = readw(&ha->reg->ctrl_status);
4685 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0)
4686 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status);
4687
4688 /* Issue Soft Reset */
4689 writel(set_rmask(CSR_SOFT_RESET), &ha->reg->ctrl_status);
4690 readl(&ha->reg->ctrl_status);
4691
4692 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4693 return QLA_SUCCESS;
4694 }
4695
4696 /**
4697 * qla4xxx_soft_reset - performs soft reset.
4698 * @ha: Pointer to host adapter structure.
4699 **/
qla4xxx_soft_reset(struct scsi_qla_host * ha)4700 int qla4xxx_soft_reset(struct scsi_qla_host *ha)
4701 {
4702 uint32_t max_wait_time;
4703 unsigned long flags = 0;
4704 int status;
4705 uint32_t ctrl_status;
4706
4707 status = qla4xxx_hw_reset(ha);
4708 if (status != QLA_SUCCESS)
4709 return status;
4710
4711 status = QLA_ERROR;
4712 /* Wait until the Network Reset Intr bit is cleared */
4713 max_wait_time = RESET_INTR_TOV;
4714 do {
4715 spin_lock_irqsave(&ha->hardware_lock, flags);
4716 ctrl_status = readw(&ha->reg->ctrl_status);
4717 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4718
4719 if ((ctrl_status & CSR_NET_RESET_INTR) == 0)
4720 break;
4721
4722 msleep(1000);
4723 } while ((--max_wait_time));
4724
4725 if ((ctrl_status & CSR_NET_RESET_INTR) != 0) {
4726 DEBUG2(printk(KERN_WARNING
4727 "scsi%ld: Network Reset Intr not cleared by "
4728 "Network function, clearing it now!\n",
4729 ha->host_no));
4730 spin_lock_irqsave(&ha->hardware_lock, flags);
4731 writel(set_rmask(CSR_NET_RESET_INTR), &ha->reg->ctrl_status);
4732 readl(&ha->reg->ctrl_status);
4733 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4734 }
4735
4736 /* Wait until the firmware tells us the Soft Reset is done */
4737 max_wait_time = SOFT_RESET_TOV;
4738 do {
4739 spin_lock_irqsave(&ha->hardware_lock, flags);
4740 ctrl_status = readw(&ha->reg->ctrl_status);
4741 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4742
4743 if ((ctrl_status & CSR_SOFT_RESET) == 0) {
4744 status = QLA_SUCCESS;
4745 break;
4746 }
4747
4748 msleep(1000);
4749 } while ((--max_wait_time));
4750
4751 /*
4752 * Also, make sure that the SCSI Reset Interrupt bit has been cleared
4753 * after the soft reset has taken place.
4754 */
4755 spin_lock_irqsave(&ha->hardware_lock, flags);
4756 ctrl_status = readw(&ha->reg->ctrl_status);
4757 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) {
4758 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status);
4759 readl(&ha->reg->ctrl_status);
4760 }
4761 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4762
4763 /* If soft reset fails then most probably the bios on other
4764 * function is also enabled.
4765 * Since the initialization is sequential the other fn
4766 * wont be able to acknowledge the soft reset.
4767 * Issue a force soft reset to workaround this scenario.
4768 */
4769 if (max_wait_time == 0) {
4770 /* Issue Force Soft Reset */
4771 spin_lock_irqsave(&ha->hardware_lock, flags);
4772 writel(set_rmask(CSR_FORCE_SOFT_RESET), &ha->reg->ctrl_status);
4773 readl(&ha->reg->ctrl_status);
4774 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4775 /* Wait until the firmware tells us the Soft Reset is done */
4776 max_wait_time = SOFT_RESET_TOV;
4777 do {
4778 spin_lock_irqsave(&ha->hardware_lock, flags);
4779 ctrl_status = readw(&ha->reg->ctrl_status);
4780 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4781
4782 if ((ctrl_status & CSR_FORCE_SOFT_RESET) == 0) {
4783 status = QLA_SUCCESS;
4784 break;
4785 }
4786
4787 msleep(1000);
4788 } while ((--max_wait_time));
4789 }
4790
4791 return status;
4792 }
4793
4794 /**
4795 * qla4xxx_abort_active_cmds - returns all outstanding i/o requests to O.S.
4796 * @ha: Pointer to host adapter structure.
4797 * @res: returned scsi status
4798 *
4799 * This routine is called just prior to a HARD RESET to return all
4800 * outstanding commands back to the Operating System.
4801 * Caller should make sure that the following locks are released
4802 * before this calling routine: Hardware lock, and io_request_lock.
4803 **/
qla4xxx_abort_active_cmds(struct scsi_qla_host * ha,int res)4804 static void qla4xxx_abort_active_cmds(struct scsi_qla_host *ha, int res)
4805 {
4806 struct srb *srb;
4807 int i;
4808 unsigned long flags;
4809
4810 spin_lock_irqsave(&ha->hardware_lock, flags);
4811 for (i = 0; i < ha->host->can_queue; i++) {
4812 srb = qla4xxx_del_from_active_array(ha, i);
4813 if (srb != NULL) {
4814 srb->cmd->result = res;
4815 kref_put(&srb->srb_ref, qla4xxx_srb_compl);
4816 }
4817 }
4818 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4819 }
4820
qla4xxx_dead_adapter_cleanup(struct scsi_qla_host * ha)4821 void qla4xxx_dead_adapter_cleanup(struct scsi_qla_host *ha)
4822 {
4823 clear_bit(AF_ONLINE, &ha->flags);
4824
4825 /* Disable the board */
4826 ql4_printk(KERN_INFO, ha, "Disabling the board\n");
4827
4828 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
4829 qla4xxx_mark_all_devices_missing(ha);
4830 clear_bit(AF_INIT_DONE, &ha->flags);
4831 }
4832
qla4xxx_fail_session(struct iscsi_cls_session * cls_session)4833 static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session)
4834 {
4835 struct iscsi_session *sess;
4836 struct ddb_entry *ddb_entry;
4837
4838 sess = cls_session->dd_data;
4839 ddb_entry = sess->dd_data;
4840 ddb_entry->fw_ddb_device_state = DDB_DS_SESSION_FAILED;
4841
4842 if (ddb_entry->ddb_type == FLASH_DDB)
4843 iscsi_block_session(ddb_entry->sess);
4844 else
4845 iscsi_session_failure(cls_session->dd_data,
4846 ISCSI_ERR_CONN_FAILED);
4847 }
4848
4849 /**
4850 * qla4xxx_recover_adapter - recovers adapter after a fatal error
4851 * @ha: Pointer to host adapter structure.
4852 **/
qla4xxx_recover_adapter(struct scsi_qla_host * ha)4853 static int qla4xxx_recover_adapter(struct scsi_qla_host *ha)
4854 {
4855 int status = QLA_ERROR;
4856 uint8_t reset_chip = 0;
4857 uint32_t dev_state;
4858 unsigned long wait;
4859
4860 /* Stall incoming I/O until we are done */
4861 scsi_block_requests(ha->host);
4862 clear_bit(AF_ONLINE, &ha->flags);
4863 clear_bit(AF_LINK_UP, &ha->flags);
4864
4865 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: adapter OFFLINE\n", __func__));
4866
4867 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
4868
4869 if ((is_qla8032(ha) || is_qla8042(ha)) &&
4870 !test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) {
4871 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
4872 __func__);
4873 /* disable pause frame for ISP83xx */
4874 qla4_83xx_disable_pause(ha);
4875 }
4876
4877 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session);
4878
4879 if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
4880 reset_chip = 1;
4881
4882 /* For the DPC_RESET_HA_INTR case (ISP-4xxx specific)
4883 * do not reset adapter, jump to initialize_adapter */
4884 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
4885 status = QLA_SUCCESS;
4886 goto recover_ha_init_adapter;
4887 }
4888
4889 /* For the ISP-8xxx adapter, issue a stop_firmware if invoked
4890 * from eh_host_reset or ioctl module */
4891 if (is_qla80XX(ha) && !reset_chip &&
4892 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) {
4893
4894 DEBUG2(ql4_printk(KERN_INFO, ha,
4895 "scsi%ld: %s - Performing stop_firmware...\n",
4896 ha->host_no, __func__));
4897 status = ha->isp_ops->reset_firmware(ha);
4898 if (status == QLA_SUCCESS) {
4899 ha->isp_ops->disable_intrs(ha);
4900 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
4901 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
4902 } else {
4903 /* If the stop_firmware fails then
4904 * reset the entire chip */
4905 reset_chip = 1;
4906 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
4907 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4908 }
4909 }
4910
4911 /* Issue full chip reset if recovering from a catastrophic error,
4912 * or if stop_firmware fails for ISP-8xxx.
4913 * This is the default case for ISP-4xxx */
4914 if (is_qla40XX(ha) || reset_chip) {
4915 if (is_qla40XX(ha))
4916 goto chip_reset;
4917
4918 /* Check if 8XXX firmware is alive or not
4919 * We may have arrived here from NEED_RESET
4920 * detection only */
4921 if (test_bit(AF_FW_RECOVERY, &ha->flags))
4922 goto chip_reset;
4923
4924 wait = jiffies + (FW_ALIVE_WAIT_TOV * HZ);
4925 while (time_before(jiffies, wait)) {
4926 if (qla4_8xxx_check_fw_alive(ha)) {
4927 qla4xxx_mailbox_premature_completion(ha);
4928 break;
4929 }
4930
4931 set_current_state(TASK_UNINTERRUPTIBLE);
4932 schedule_timeout(HZ);
4933 }
4934 chip_reset:
4935 if (!test_bit(AF_FW_RECOVERY, &ha->flags))
4936 qla4xxx_cmd_wait(ha);
4937
4938 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
4939 DEBUG2(ql4_printk(KERN_INFO, ha,
4940 "scsi%ld: %s - Performing chip reset..\n",
4941 ha->host_no, __func__));
4942 status = ha->isp_ops->reset_chip(ha);
4943 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
4944 }
4945
4946 /* Flush any pending ddb changed AENs */
4947 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
4948
4949 recover_ha_init_adapter:
4950 /* Upon successful firmware/chip reset, re-initialize the adapter */
4951 if (status == QLA_SUCCESS) {
4952 /* For ISP-4xxx, force function 1 to always initialize
4953 * before function 3 to prevent both funcions from
4954 * stepping on top of the other */
4955 if (is_qla40XX(ha) && (ha->mac_index == 3))
4956 ssleep(6);
4957
4958 /* NOTE: AF_ONLINE flag set upon successful completion of
4959 * qla4xxx_initialize_adapter */
4960 status = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
4961 if (is_qla80XX(ha) && (status == QLA_ERROR)) {
4962 status = qla4_8xxx_check_init_adapter_retry(ha);
4963 if (status == QLA_ERROR) {
4964 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Don't retry recover adapter\n",
4965 ha->host_no, __func__);
4966 qla4xxx_dead_adapter_cleanup(ha);
4967 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
4968 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
4969 clear_bit(DPC_RESET_HA_FW_CONTEXT,
4970 &ha->dpc_flags);
4971 goto exit_recover;
4972 }
4973 }
4974 }
4975
4976 /* Retry failed adapter initialization, if necessary
4977 * Do not retry initialize_adapter for RESET_HA_INTR (ISP-4xxx specific)
4978 * case to prevent ping-pong resets between functions */
4979 if (!test_bit(AF_ONLINE, &ha->flags) &&
4980 !test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
4981 /* Adapter initialization failed, see if we can retry
4982 * resetting the ha.
4983 * Since we don't want to block the DPC for too long
4984 * with multiple resets in the same thread,
4985 * utilize DPC to retry */
4986 if (is_qla80XX(ha)) {
4987 ha->isp_ops->idc_lock(ha);
4988 dev_state = qla4_8xxx_rd_direct(ha,
4989 QLA8XXX_CRB_DEV_STATE);
4990 ha->isp_ops->idc_unlock(ha);
4991 if (dev_state == QLA8XXX_DEV_FAILED) {
4992 ql4_printk(KERN_INFO, ha, "%s: don't retry "
4993 "recover adapter. H/W is in Failed "
4994 "state\n", __func__);
4995 qla4xxx_dead_adapter_cleanup(ha);
4996 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
4997 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
4998 clear_bit(DPC_RESET_HA_FW_CONTEXT,
4999 &ha->dpc_flags);
5000 status = QLA_ERROR;
5001
5002 goto exit_recover;
5003 }
5004 }
5005
5006 if (!test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags)) {
5007 ha->retry_reset_ha_cnt = MAX_RESET_HA_RETRIES;
5008 DEBUG2(printk("scsi%ld: recover adapter - retrying "
5009 "(%d) more times\n", ha->host_no,
5010 ha->retry_reset_ha_cnt));
5011 set_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
5012 status = QLA_ERROR;
5013 } else {
5014 if (ha->retry_reset_ha_cnt > 0) {
5015 /* Schedule another Reset HA--DPC will retry */
5016 ha->retry_reset_ha_cnt--;
5017 DEBUG2(printk("scsi%ld: recover adapter - "
5018 "retry remaining %d\n",
5019 ha->host_no,
5020 ha->retry_reset_ha_cnt));
5021 status = QLA_ERROR;
5022 }
5023
5024 if (ha->retry_reset_ha_cnt == 0) {
5025 /* Recover adapter retries have been exhausted.
5026 * Adapter DEAD */
5027 DEBUG2(printk("scsi%ld: recover adapter "
5028 "failed - board disabled\n",
5029 ha->host_no));
5030 qla4xxx_dead_adapter_cleanup(ha);
5031 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
5032 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
5033 clear_bit(DPC_RESET_HA_FW_CONTEXT,
5034 &ha->dpc_flags);
5035 status = QLA_ERROR;
5036 }
5037 }
5038 } else {
5039 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
5040 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
5041 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
5042 }
5043
5044 exit_recover:
5045 ha->adapter_error_count++;
5046
5047 if (test_bit(AF_ONLINE, &ha->flags))
5048 ha->isp_ops->enable_intrs(ha);
5049
5050 scsi_unblock_requests(ha->host);
5051
5052 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
5053 DEBUG2(printk("scsi%ld: recover adapter: %s\n", ha->host_no,
5054 status == QLA_ERROR ? "FAILED" : "SUCCEEDED"));
5055
5056 return status;
5057 }
5058
qla4xxx_relogin_devices(struct iscsi_cls_session * cls_session)5059 static void qla4xxx_relogin_devices(struct iscsi_cls_session *cls_session)
5060 {
5061 struct iscsi_session *sess;
5062 struct ddb_entry *ddb_entry;
5063 struct scsi_qla_host *ha;
5064
5065 sess = cls_session->dd_data;
5066 ddb_entry = sess->dd_data;
5067 ha = ddb_entry->ha;
5068 if (!iscsi_is_session_online(cls_session)) {
5069 if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) {
5070 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5071 " unblock session\n", ha->host_no, __func__,
5072 ddb_entry->fw_ddb_index);
5073 iscsi_unblock_session(ddb_entry->sess);
5074 } else {
5075 /* Trigger relogin */
5076 if (ddb_entry->ddb_type == FLASH_DDB) {
5077 if (!(test_bit(DF_RELOGIN, &ddb_entry->flags) ||
5078 test_bit(DF_DISABLE_RELOGIN,
5079 &ddb_entry->flags)))
5080 qla4xxx_arm_relogin_timer(ddb_entry);
5081 } else
5082 iscsi_session_failure(cls_session->dd_data,
5083 ISCSI_ERR_CONN_FAILED);
5084 }
5085 }
5086 }
5087
qla4xxx_unblock_flash_ddb(struct iscsi_cls_session * cls_session)5088 int qla4xxx_unblock_flash_ddb(struct iscsi_cls_session *cls_session)
5089 {
5090 struct iscsi_session *sess;
5091 struct ddb_entry *ddb_entry;
5092 struct scsi_qla_host *ha;
5093
5094 sess = cls_session->dd_data;
5095 ddb_entry = sess->dd_data;
5096 ha = ddb_entry->ha;
5097 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5098 " unblock session\n", ha->host_no, __func__,
5099 ddb_entry->fw_ddb_index);
5100
5101 iscsi_unblock_session(ddb_entry->sess);
5102
5103 /* Start scan target */
5104 if (test_bit(AF_ONLINE, &ha->flags)) {
5105 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5106 " start scan\n", ha->host_no, __func__,
5107 ddb_entry->fw_ddb_index);
5108 queue_work(ddb_entry->sess->workq, &ddb_entry->sess->scan_work);
5109 }
5110 return QLA_SUCCESS;
5111 }
5112
qla4xxx_unblock_ddb(struct iscsi_cls_session * cls_session)5113 int qla4xxx_unblock_ddb(struct iscsi_cls_session *cls_session)
5114 {
5115 struct iscsi_session *sess;
5116 struct ddb_entry *ddb_entry;
5117 struct scsi_qla_host *ha;
5118 int status = QLA_SUCCESS;
5119
5120 sess = cls_session->dd_data;
5121 ddb_entry = sess->dd_data;
5122 ha = ddb_entry->ha;
5123 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5124 " unblock user space session\n", ha->host_no, __func__,
5125 ddb_entry->fw_ddb_index);
5126
5127 if (!iscsi_is_session_online(cls_session)) {
5128 iscsi_conn_start(ddb_entry->conn);
5129 iscsi_conn_login_event(ddb_entry->conn,
5130 ISCSI_CONN_STATE_LOGGED_IN);
5131 } else {
5132 ql4_printk(KERN_INFO, ha,
5133 "scsi%ld: %s: ddb[%d] session [%d] already logged in\n",
5134 ha->host_no, __func__, ddb_entry->fw_ddb_index,
5135 cls_session->sid);
5136 status = QLA_ERROR;
5137 }
5138
5139 return status;
5140 }
5141
qla4xxx_relogin_all_devices(struct scsi_qla_host * ha)5142 static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha)
5143 {
5144 iscsi_host_for_each_session(ha->host, qla4xxx_relogin_devices);
5145 }
5146
qla4xxx_relogin_flash_ddb(struct iscsi_cls_session * cls_sess)5147 static void qla4xxx_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)
5148 {
5149 uint16_t relogin_timer;
5150 struct iscsi_session *sess;
5151 struct ddb_entry *ddb_entry;
5152 struct scsi_qla_host *ha;
5153
5154 sess = cls_sess->dd_data;
5155 ddb_entry = sess->dd_data;
5156 ha = ddb_entry->ha;
5157
5158 relogin_timer = max(ddb_entry->default_relogin_timeout,
5159 (uint16_t)RELOGIN_TOV);
5160 atomic_set(&ddb_entry->relogin_timer, relogin_timer);
5161
5162 DEBUG2(ql4_printk(KERN_INFO, ha,
5163 "scsi%ld: Relogin index [%d]. TOV=%d\n", ha->host_no,
5164 ddb_entry->fw_ddb_index, relogin_timer));
5165
5166 qla4xxx_login_flash_ddb(cls_sess);
5167 }
5168
qla4xxx_dpc_relogin(struct iscsi_cls_session * cls_sess)5169 static void qla4xxx_dpc_relogin(struct iscsi_cls_session *cls_sess)
5170 {
5171 struct iscsi_session *sess;
5172 struct ddb_entry *ddb_entry;
5173 struct scsi_qla_host *ha;
5174
5175 sess = cls_sess->dd_data;
5176 ddb_entry = sess->dd_data;
5177 ha = ddb_entry->ha;
5178
5179 if (!(ddb_entry->ddb_type == FLASH_DDB))
5180 return;
5181
5182 if (test_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags))
5183 return;
5184
5185 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags) &&
5186 !iscsi_is_session_online(cls_sess)) {
5187 DEBUG2(ql4_printk(KERN_INFO, ha,
5188 "relogin issued\n"));
5189 qla4xxx_relogin_flash_ddb(cls_sess);
5190 }
5191 }
5192
qla4xxx_wake_dpc(struct scsi_qla_host * ha)5193 void qla4xxx_wake_dpc(struct scsi_qla_host *ha)
5194 {
5195 if (ha->dpc_thread)
5196 queue_work(ha->dpc_thread, &ha->dpc_work);
5197 }
5198
5199 static struct qla4_work_evt *
qla4xxx_alloc_work(struct scsi_qla_host * ha,uint32_t data_size,enum qla4_work_type type)5200 qla4xxx_alloc_work(struct scsi_qla_host *ha, uint32_t data_size,
5201 enum qla4_work_type type)
5202 {
5203 struct qla4_work_evt *e;
5204 uint32_t size = sizeof(struct qla4_work_evt) + data_size;
5205
5206 e = kzalloc(size, GFP_ATOMIC);
5207 if (!e)
5208 return NULL;
5209
5210 INIT_LIST_HEAD(&e->list);
5211 e->type = type;
5212 return e;
5213 }
5214
qla4xxx_post_work(struct scsi_qla_host * ha,struct qla4_work_evt * e)5215 static void qla4xxx_post_work(struct scsi_qla_host *ha,
5216 struct qla4_work_evt *e)
5217 {
5218 unsigned long flags;
5219
5220 spin_lock_irqsave(&ha->work_lock, flags);
5221 list_add_tail(&e->list, &ha->work_list);
5222 spin_unlock_irqrestore(&ha->work_lock, flags);
5223 qla4xxx_wake_dpc(ha);
5224 }
5225
qla4xxx_post_aen_work(struct scsi_qla_host * ha,enum iscsi_host_event_code aen_code,uint32_t data_size,uint8_t * data)5226 int qla4xxx_post_aen_work(struct scsi_qla_host *ha,
5227 enum iscsi_host_event_code aen_code,
5228 uint32_t data_size, uint8_t *data)
5229 {
5230 struct qla4_work_evt *e;
5231
5232 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_AEN);
5233 if (!e)
5234 return QLA_ERROR;
5235
5236 e->u.aen.code = aen_code;
5237 e->u.aen.data_size = data_size;
5238 memcpy(e->u.aen.data, data, data_size);
5239
5240 qla4xxx_post_work(ha, e);
5241
5242 return QLA_SUCCESS;
5243 }
5244
qla4xxx_post_ping_evt_work(struct scsi_qla_host * ha,uint32_t status,uint32_t pid,uint32_t data_size,uint8_t * data)5245 int qla4xxx_post_ping_evt_work(struct scsi_qla_host *ha,
5246 uint32_t status, uint32_t pid,
5247 uint32_t data_size, uint8_t *data)
5248 {
5249 struct qla4_work_evt *e;
5250
5251 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_PING_STATUS);
5252 if (!e)
5253 return QLA_ERROR;
5254
5255 e->u.ping.status = status;
5256 e->u.ping.pid = pid;
5257 e->u.ping.data_size = data_size;
5258 memcpy(e->u.ping.data, data, data_size);
5259
5260 qla4xxx_post_work(ha, e);
5261
5262 return QLA_SUCCESS;
5263 }
5264
qla4xxx_do_work(struct scsi_qla_host * ha)5265 static void qla4xxx_do_work(struct scsi_qla_host *ha)
5266 {
5267 struct qla4_work_evt *e, *tmp;
5268 unsigned long flags;
5269 LIST_HEAD(work);
5270
5271 spin_lock_irqsave(&ha->work_lock, flags);
5272 list_splice_init(&ha->work_list, &work);
5273 spin_unlock_irqrestore(&ha->work_lock, flags);
5274
5275 list_for_each_entry_safe(e, tmp, &work, list) {
5276 list_del_init(&e->list);
5277
5278 switch (e->type) {
5279 case QLA4_EVENT_AEN:
5280 iscsi_post_host_event(ha->host_no,
5281 &qla4xxx_iscsi_transport,
5282 e->u.aen.code,
5283 e->u.aen.data_size,
5284 e->u.aen.data);
5285 break;
5286 case QLA4_EVENT_PING_STATUS:
5287 iscsi_ping_comp_event(ha->host_no,
5288 &qla4xxx_iscsi_transport,
5289 e->u.ping.status,
5290 e->u.ping.pid,
5291 e->u.ping.data_size,
5292 e->u.ping.data);
5293 break;
5294 default:
5295 ql4_printk(KERN_WARNING, ha, "event type: 0x%x not "
5296 "supported", e->type);
5297 }
5298 kfree(e);
5299 }
5300 }
5301
5302 /**
5303 * qla4xxx_do_dpc - dpc routine
5304 * @work: Context to obtain pointer to host adapter structure.
5305 *
5306 * This routine is a task that is schedule by the interrupt handler
5307 * to perform the background processing for interrupts. We put it
5308 * on a task queue that is consumed whenever the scheduler runs; that's
5309 * so you can do anything (i.e. put the process to sleep etc). In fact,
5310 * the mid-level tries to sleep when it reaches the driver threshold
5311 * "host->can_queue". This can cause a panic if we were in our interrupt code.
5312 **/
qla4xxx_do_dpc(struct work_struct * work)5313 static void qla4xxx_do_dpc(struct work_struct *work)
5314 {
5315 struct scsi_qla_host *ha =
5316 container_of(work, struct scsi_qla_host, dpc_work);
5317 int status = QLA_ERROR;
5318
5319 DEBUG2(ql4_printk(KERN_INFO, ha,
5320 "scsi%ld: %s: DPC handler waking up. flags = 0x%08lx, dpc_flags = 0x%08lx\n",
5321 ha->host_no, __func__, ha->flags, ha->dpc_flags));
5322
5323 /* Initialization not yet finished. Don't do anything yet. */
5324 if (!test_bit(AF_INIT_DONE, &ha->flags))
5325 return;
5326
5327 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
5328 DEBUG2(printk(KERN_INFO "scsi%ld: %s: flags = %lx\n",
5329 ha->host_no, __func__, ha->flags));
5330 return;
5331 }
5332
5333 /* post events to application */
5334 qla4xxx_do_work(ha);
5335
5336 if (is_qla80XX(ha)) {
5337 if (test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags)) {
5338 if (is_qla8032(ha) || is_qla8042(ha)) {
5339 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
5340 __func__);
5341 /* disable pause frame for ISP83xx */
5342 qla4_83xx_disable_pause(ha);
5343 }
5344
5345 ha->isp_ops->idc_lock(ha);
5346 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
5347 QLA8XXX_DEV_FAILED);
5348 ha->isp_ops->idc_unlock(ha);
5349 ql4_printk(KERN_INFO, ha, "HW State: FAILED\n");
5350 qla4_8xxx_device_state_handler(ha);
5351 }
5352
5353 if (test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags)) {
5354 if (is_qla8042(ha)) {
5355 if (ha->idc_info.info2 &
5356 ENABLE_INTERNAL_LOOPBACK) {
5357 ql4_printk(KERN_INFO, ha, "%s: Disabling ACB\n",
5358 __func__);
5359 status = qla4_84xx_config_acb(ha,
5360 ACB_CONFIG_DISABLE);
5361 if (status != QLA_SUCCESS) {
5362 ql4_printk(KERN_INFO, ha, "%s: ACB config failed\n",
5363 __func__);
5364 }
5365 }
5366 }
5367 qla4_83xx_post_idc_ack(ha);
5368 clear_bit(DPC_POST_IDC_ACK, &ha->dpc_flags);
5369 }
5370
5371 if (is_qla8042(ha) &&
5372 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags)) {
5373 ql4_printk(KERN_INFO, ha, "%s: Restoring ACB\n",
5374 __func__);
5375 if (qla4_84xx_config_acb(ha, ACB_CONFIG_SET) !=
5376 QLA_SUCCESS) {
5377 ql4_printk(KERN_INFO, ha, "%s: ACB config failed ",
5378 __func__);
5379 }
5380 clear_bit(DPC_RESTORE_ACB, &ha->dpc_flags);
5381 }
5382
5383 if (test_and_clear_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) {
5384 qla4_8xxx_need_qsnt_handler(ha);
5385 }
5386 }
5387
5388 if (!test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) &&
5389 (test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
5390 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
5391 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))) {
5392 if ((is_qla8022(ha) && ql4xdontresethba) ||
5393 ((is_qla8032(ha) || is_qla8042(ha)) &&
5394 qla4_83xx_idc_dontreset(ha))) {
5395 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n",
5396 ha->host_no, __func__));
5397 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
5398 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags);
5399 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
5400 goto dpc_post_reset_ha;
5401 }
5402 if (test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) ||
5403 test_bit(DPC_RESET_HA, &ha->dpc_flags))
5404 qla4xxx_recover_adapter(ha);
5405
5406 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
5407 uint8_t wait_time = RESET_INTR_TOV;
5408
5409 while ((readw(&ha->reg->ctrl_status) &
5410 (CSR_SOFT_RESET | CSR_FORCE_SOFT_RESET)) != 0) {
5411 if (--wait_time == 0)
5412 break;
5413 msleep(1000);
5414 }
5415 if (wait_time == 0)
5416 DEBUG2(printk("scsi%ld: %s: SR|FSR "
5417 "bit not cleared-- resetting\n",
5418 ha->host_no, __func__));
5419 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
5420 if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS) {
5421 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
5422 status = qla4xxx_recover_adapter(ha);
5423 }
5424 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags);
5425 if (status == QLA_SUCCESS)
5426 ha->isp_ops->enable_intrs(ha);
5427 }
5428 }
5429
5430 dpc_post_reset_ha:
5431 /* ---- process AEN? --- */
5432 if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags))
5433 qla4xxx_process_aen(ha, PROCESS_ALL_AENS);
5434
5435 /* ---- Get DHCP IP Address? --- */
5436 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags))
5437 qla4xxx_get_dhcp_ip_address(ha);
5438
5439 /* ---- relogin device? --- */
5440 if (adapter_up(ha) &&
5441 test_and_clear_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags)) {
5442 iscsi_host_for_each_session(ha->host, qla4xxx_dpc_relogin);
5443 }
5444
5445 /* ---- link change? --- */
5446 if (!test_bit(AF_LOOPBACK, &ha->flags) &&
5447 test_and_clear_bit(DPC_LINK_CHANGED, &ha->dpc_flags)) {
5448 if (!test_bit(AF_LINK_UP, &ha->flags)) {
5449 /* ---- link down? --- */
5450 qla4xxx_mark_all_devices_missing(ha);
5451 } else {
5452 /* ---- link up? --- *
5453 * F/W will auto login to all devices ONLY ONCE after
5454 * link up during driver initialization and runtime
5455 * fatal error recovery. Therefore, the driver must
5456 * manually relogin to devices when recovering from
5457 * connection failures, logouts, expired KATO, etc. */
5458 if (test_and_clear_bit(AF_BUILD_DDB_LIST, &ha->flags)) {
5459 qla4xxx_build_ddb_list(ha, ha->is_reset);
5460 iscsi_host_for_each_session(ha->host,
5461 qla4xxx_login_flash_ddb);
5462 } else
5463 qla4xxx_relogin_all_devices(ha);
5464 }
5465 }
5466 if (test_and_clear_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags)) {
5467 if (qla4xxx_sysfs_ddb_export(ha))
5468 ql4_printk(KERN_ERR, ha, "%s: Error exporting ddb to sysfs\n",
5469 __func__);
5470 }
5471 }
5472
5473 /**
5474 * qla4xxx_free_adapter - release the adapter
5475 * @ha: pointer to adapter structure
5476 **/
qla4xxx_free_adapter(struct scsi_qla_host * ha)5477 static void qla4xxx_free_adapter(struct scsi_qla_host *ha)
5478 {
5479 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
5480
5481 /* Turn-off interrupts on the card. */
5482 ha->isp_ops->disable_intrs(ha);
5483
5484 if (is_qla40XX(ha)) {
5485 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR),
5486 &ha->reg->ctrl_status);
5487 readl(&ha->reg->ctrl_status);
5488 } else if (is_qla8022(ha)) {
5489 writel(0, &ha->qla4_82xx_reg->host_int);
5490 readl(&ha->qla4_82xx_reg->host_int);
5491 } else if (is_qla8032(ha) || is_qla8042(ha)) {
5492 writel(0, &ha->qla4_83xx_reg->risc_intr);
5493 readl(&ha->qla4_83xx_reg->risc_intr);
5494 }
5495
5496 /* Remove timer thread, if present */
5497 if (ha->timer_active)
5498 qla4xxx_stop_timer(ha);
5499
5500 /* Kill the kernel thread for this host */
5501 if (ha->dpc_thread)
5502 destroy_workqueue(ha->dpc_thread);
5503
5504 /* Kill the kernel thread for this host */
5505 if (ha->task_wq)
5506 destroy_workqueue(ha->task_wq);
5507
5508 /* Put firmware in known state */
5509 ha->isp_ops->reset_firmware(ha);
5510
5511 if (is_qla80XX(ha)) {
5512 ha->isp_ops->idc_lock(ha);
5513 qla4_8xxx_clear_drv_active(ha);
5514 ha->isp_ops->idc_unlock(ha);
5515 }
5516
5517 /* Detach interrupts */
5518 qla4xxx_free_irqs(ha);
5519
5520 /* free extra memory */
5521 qla4xxx_mem_free(ha);
5522 }
5523
qla4_8xxx_iospace_config(struct scsi_qla_host * ha)5524 int qla4_8xxx_iospace_config(struct scsi_qla_host *ha)
5525 {
5526 int status = 0;
5527 unsigned long mem_base, mem_len;
5528 struct pci_dev *pdev = ha->pdev;
5529
5530 status = pci_request_regions(pdev, DRIVER_NAME);
5531 if (status) {
5532 printk(KERN_WARNING
5533 "scsi(%ld) Failed to reserve PIO regions (%s) "
5534 "status=%d\n", ha->host_no, pci_name(pdev), status);
5535 goto iospace_error_exit;
5536 }
5537
5538 DEBUG2(printk(KERN_INFO "%s: revision-id=%d\n",
5539 __func__, pdev->revision));
5540 ha->revision_id = pdev->revision;
5541
5542 /* remap phys address */
5543 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
5544 mem_len = pci_resource_len(pdev, 0);
5545 DEBUG2(printk(KERN_INFO "%s: ioremap from %lx a size of %lx\n",
5546 __func__, mem_base, mem_len));
5547
5548 /* mapping of pcibase pointer */
5549 ha->nx_pcibase = (unsigned long)ioremap(mem_base, mem_len);
5550 if (!ha->nx_pcibase) {
5551 printk(KERN_ERR
5552 "cannot remap MMIO (%s), aborting\n", pci_name(pdev));
5553 pci_release_regions(ha->pdev);
5554 goto iospace_error_exit;
5555 }
5556
5557 /* Mapping of IO base pointer, door bell read and write pointer */
5558
5559 /* mapping of IO base pointer */
5560 if (is_qla8022(ha)) {
5561 ha->qla4_82xx_reg = (struct device_reg_82xx __iomem *)
5562 ((uint8_t *)ha->nx_pcibase + 0xbc000 +
5563 (ha->pdev->devfn << 11));
5564 ha->nx_db_wr_ptr = (ha->pdev->devfn == 4 ? QLA82XX_CAM_RAM_DB1 :
5565 QLA82XX_CAM_RAM_DB2);
5566 } else if (is_qla8032(ha) || is_qla8042(ha)) {
5567 ha->qla4_83xx_reg = (struct device_reg_83xx __iomem *)
5568 ((uint8_t *)ha->nx_pcibase);
5569 }
5570
5571 return 0;
5572 iospace_error_exit:
5573 return -ENOMEM;
5574 }
5575
5576 /***
5577 * qla4xxx_iospace_config - maps registers
5578 * @ha: pointer to adapter structure
5579 *
5580 * This routines maps HBA's registers from the pci address space
5581 * into the kernel virtual address space for memory mapped i/o.
5582 **/
qla4xxx_iospace_config(struct scsi_qla_host * ha)5583 int qla4xxx_iospace_config(struct scsi_qla_host *ha)
5584 {
5585 unsigned long pio, pio_len, pio_flags;
5586 unsigned long mmio, mmio_len, mmio_flags;
5587
5588 pio = pci_resource_start(ha->pdev, 0);
5589 pio_len = pci_resource_len(ha->pdev, 0);
5590 pio_flags = pci_resource_flags(ha->pdev, 0);
5591 if (pio_flags & IORESOURCE_IO) {
5592 if (pio_len < MIN_IOBASE_LEN) {
5593 ql4_printk(KERN_WARNING, ha,
5594 "Invalid PCI I/O region size\n");
5595 pio = 0;
5596 }
5597 } else {
5598 ql4_printk(KERN_WARNING, ha, "region #0 not a PIO resource\n");
5599 pio = 0;
5600 }
5601
5602 /* Use MMIO operations for all accesses. */
5603 mmio = pci_resource_start(ha->pdev, 1);
5604 mmio_len = pci_resource_len(ha->pdev, 1);
5605 mmio_flags = pci_resource_flags(ha->pdev, 1);
5606
5607 if (!(mmio_flags & IORESOURCE_MEM)) {
5608 ql4_printk(KERN_ERR, ha,
5609 "region #0 not an MMIO resource, aborting\n");
5610
5611 goto iospace_error_exit;
5612 }
5613
5614 if (mmio_len < MIN_IOBASE_LEN) {
5615 ql4_printk(KERN_ERR, ha,
5616 "Invalid PCI mem region size, aborting\n");
5617 goto iospace_error_exit;
5618 }
5619
5620 if (pci_request_regions(ha->pdev, DRIVER_NAME)) {
5621 ql4_printk(KERN_WARNING, ha,
5622 "Failed to reserve PIO/MMIO regions\n");
5623
5624 goto iospace_error_exit;
5625 }
5626
5627 ha->pio_address = pio;
5628 ha->pio_length = pio_len;
5629 ha->reg = ioremap(mmio, MIN_IOBASE_LEN);
5630 if (!ha->reg) {
5631 ql4_printk(KERN_ERR, ha,
5632 "cannot remap MMIO, aborting\n");
5633
5634 goto iospace_error_exit;
5635 }
5636
5637 return 0;
5638
5639 iospace_error_exit:
5640 return -ENOMEM;
5641 }
5642
5643 static struct isp_operations qla4xxx_isp_ops = {
5644 .iospace_config = qla4xxx_iospace_config,
5645 .pci_config = qla4xxx_pci_config,
5646 .disable_intrs = qla4xxx_disable_intrs,
5647 .enable_intrs = qla4xxx_enable_intrs,
5648 .start_firmware = qla4xxx_start_firmware,
5649 .intr_handler = qla4xxx_intr_handler,
5650 .interrupt_service_routine = qla4xxx_interrupt_service_routine,
5651 .reset_chip = qla4xxx_soft_reset,
5652 .reset_firmware = qla4xxx_hw_reset,
5653 .queue_iocb = qla4xxx_queue_iocb,
5654 .complete_iocb = qla4xxx_complete_iocb,
5655 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out,
5656 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in,
5657 .get_sys_info = qla4xxx_get_sys_info,
5658 .queue_mailbox_command = qla4xxx_queue_mbox_cmd,
5659 .process_mailbox_interrupt = qla4xxx_process_mbox_intr,
5660 };
5661
5662 static struct isp_operations qla4_82xx_isp_ops = {
5663 .iospace_config = qla4_8xxx_iospace_config,
5664 .pci_config = qla4_8xxx_pci_config,
5665 .disable_intrs = qla4_82xx_disable_intrs,
5666 .enable_intrs = qla4_82xx_enable_intrs,
5667 .start_firmware = qla4_8xxx_load_risc,
5668 .restart_firmware = qla4_82xx_try_start_fw,
5669 .intr_handler = qla4_82xx_intr_handler,
5670 .interrupt_service_routine = qla4_82xx_interrupt_service_routine,
5671 .need_reset = qla4_8xxx_need_reset,
5672 .reset_chip = qla4_82xx_isp_reset,
5673 .reset_firmware = qla4_8xxx_stop_firmware,
5674 .queue_iocb = qla4_82xx_queue_iocb,
5675 .complete_iocb = qla4_82xx_complete_iocb,
5676 .rd_shdw_req_q_out = qla4_82xx_rd_shdw_req_q_out,
5677 .rd_shdw_rsp_q_in = qla4_82xx_rd_shdw_rsp_q_in,
5678 .get_sys_info = qla4_8xxx_get_sys_info,
5679 .rd_reg_direct = qla4_82xx_rd_32,
5680 .wr_reg_direct = qla4_82xx_wr_32,
5681 .rd_reg_indirect = qla4_82xx_md_rd_32,
5682 .wr_reg_indirect = qla4_82xx_md_wr_32,
5683 .idc_lock = qla4_82xx_idc_lock,
5684 .idc_unlock = qla4_82xx_idc_unlock,
5685 .rom_lock_recovery = qla4_82xx_rom_lock_recovery,
5686 .queue_mailbox_command = qla4_82xx_queue_mbox_cmd,
5687 .process_mailbox_interrupt = qla4_82xx_process_mbox_intr,
5688 };
5689
5690 static struct isp_operations qla4_83xx_isp_ops = {
5691 .iospace_config = qla4_8xxx_iospace_config,
5692 .pci_config = qla4_8xxx_pci_config,
5693 .disable_intrs = qla4_83xx_disable_intrs,
5694 .enable_intrs = qla4_83xx_enable_intrs,
5695 .start_firmware = qla4_8xxx_load_risc,
5696 .restart_firmware = qla4_83xx_start_firmware,
5697 .intr_handler = qla4_83xx_intr_handler,
5698 .interrupt_service_routine = qla4_83xx_interrupt_service_routine,
5699 .need_reset = qla4_8xxx_need_reset,
5700 .reset_chip = qla4_83xx_isp_reset,
5701 .reset_firmware = qla4_8xxx_stop_firmware,
5702 .queue_iocb = qla4_83xx_queue_iocb,
5703 .complete_iocb = qla4_83xx_complete_iocb,
5704 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out,
5705 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in,
5706 .get_sys_info = qla4_8xxx_get_sys_info,
5707 .rd_reg_direct = qla4_83xx_rd_reg,
5708 .wr_reg_direct = qla4_83xx_wr_reg,
5709 .rd_reg_indirect = qla4_83xx_rd_reg_indirect,
5710 .wr_reg_indirect = qla4_83xx_wr_reg_indirect,
5711 .idc_lock = qla4_83xx_drv_lock,
5712 .idc_unlock = qla4_83xx_drv_unlock,
5713 .rom_lock_recovery = qla4_83xx_rom_lock_recovery,
5714 .queue_mailbox_command = qla4_83xx_queue_mbox_cmd,
5715 .process_mailbox_interrupt = qla4_83xx_process_mbox_intr,
5716 };
5717
qla4xxx_rd_shdw_req_q_out(struct scsi_qla_host * ha)5718 uint16_t qla4xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha)
5719 {
5720 return (uint16_t)le32_to_cpu(ha->shadow_regs->req_q_out);
5721 }
5722
qla4_82xx_rd_shdw_req_q_out(struct scsi_qla_host * ha)5723 uint16_t qla4_82xx_rd_shdw_req_q_out(struct scsi_qla_host *ha)
5724 {
5725 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->req_q_out));
5726 }
5727
qla4xxx_rd_shdw_rsp_q_in(struct scsi_qla_host * ha)5728 uint16_t qla4xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha)
5729 {
5730 return (uint16_t)le32_to_cpu(ha->shadow_regs->rsp_q_in);
5731 }
5732
qla4_82xx_rd_shdw_rsp_q_in(struct scsi_qla_host * ha)5733 uint16_t qla4_82xx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha)
5734 {
5735 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->rsp_q_in));
5736 }
5737
qla4xxx_show_boot_eth_info(void * data,int type,char * buf)5738 static ssize_t qla4xxx_show_boot_eth_info(void *data, int type, char *buf)
5739 {
5740 struct scsi_qla_host *ha = data;
5741 char *str = buf;
5742 int rc;
5743
5744 switch (type) {
5745 case ISCSI_BOOT_ETH_FLAGS:
5746 rc = sprintf(str, "%d\n", (char)SYSFS_FLAG_FW_SEL_BOOT);
5747 break;
5748 case ISCSI_BOOT_ETH_INDEX:
5749 rc = sprintf(str, "0\n");
5750 break;
5751 case ISCSI_BOOT_ETH_MAC:
5752 rc = sysfs_format_mac(str, ha->my_mac,
5753 MAC_ADDR_LEN);
5754 break;
5755 default:
5756 rc = -ENOSYS;
5757 break;
5758 }
5759 return rc;
5760 }
5761
qla4xxx_eth_get_attr_visibility(void * data,int type)5762 static umode_t qla4xxx_eth_get_attr_visibility(void *data, int type)
5763 {
5764 int rc;
5765
5766 switch (type) {
5767 case ISCSI_BOOT_ETH_FLAGS:
5768 case ISCSI_BOOT_ETH_MAC:
5769 case ISCSI_BOOT_ETH_INDEX:
5770 rc = S_IRUGO;
5771 break;
5772 default:
5773 rc = 0;
5774 break;
5775 }
5776 return rc;
5777 }
5778
qla4xxx_show_boot_ini_info(void * data,int type,char * buf)5779 static ssize_t qla4xxx_show_boot_ini_info(void *data, int type, char *buf)
5780 {
5781 struct scsi_qla_host *ha = data;
5782 char *str = buf;
5783 int rc;
5784
5785 switch (type) {
5786 case ISCSI_BOOT_INI_INITIATOR_NAME:
5787 rc = sprintf(str, "%s\n", ha->name_string);
5788 break;
5789 default:
5790 rc = -ENOSYS;
5791 break;
5792 }
5793 return rc;
5794 }
5795
qla4xxx_ini_get_attr_visibility(void * data,int type)5796 static umode_t qla4xxx_ini_get_attr_visibility(void *data, int type)
5797 {
5798 int rc;
5799
5800 switch (type) {
5801 case ISCSI_BOOT_INI_INITIATOR_NAME:
5802 rc = S_IRUGO;
5803 break;
5804 default:
5805 rc = 0;
5806 break;
5807 }
5808 return rc;
5809 }
5810
5811 static ssize_t
qla4xxx_show_boot_tgt_info(struct ql4_boot_session_info * boot_sess,int type,char * buf)5812 qla4xxx_show_boot_tgt_info(struct ql4_boot_session_info *boot_sess, int type,
5813 char *buf)
5814 {
5815 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0];
5816 char *str = buf;
5817 int rc;
5818
5819 switch (type) {
5820 case ISCSI_BOOT_TGT_NAME:
5821 rc = sprintf(buf, "%s\n", (char *)&boot_sess->target_name);
5822 break;
5823 case ISCSI_BOOT_TGT_IP_ADDR:
5824 if (boot_sess->conn_list[0].dest_ipaddr.ip_type == 0x1)
5825 rc = sprintf(buf, "%pI4\n",
5826 &boot_conn->dest_ipaddr.ip_address);
5827 else
5828 rc = sprintf(str, "%pI6\n",
5829 &boot_conn->dest_ipaddr.ip_address);
5830 break;
5831 case ISCSI_BOOT_TGT_PORT:
5832 rc = sprintf(str, "%d\n", boot_conn->dest_port);
5833 break;
5834 case ISCSI_BOOT_TGT_CHAP_NAME:
5835 rc = sprintf(str, "%.*s\n",
5836 boot_conn->chap.target_chap_name_length,
5837 (char *)&boot_conn->chap.target_chap_name);
5838 break;
5839 case ISCSI_BOOT_TGT_CHAP_SECRET:
5840 rc = sprintf(str, "%.*s\n",
5841 boot_conn->chap.target_secret_length,
5842 (char *)&boot_conn->chap.target_secret);
5843 break;
5844 case ISCSI_BOOT_TGT_REV_CHAP_NAME:
5845 rc = sprintf(str, "%.*s\n",
5846 boot_conn->chap.intr_chap_name_length,
5847 (char *)&boot_conn->chap.intr_chap_name);
5848 break;
5849 case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
5850 rc = sprintf(str, "%.*s\n",
5851 boot_conn->chap.intr_secret_length,
5852 (char *)&boot_conn->chap.intr_secret);
5853 break;
5854 case ISCSI_BOOT_TGT_FLAGS:
5855 rc = sprintf(str, "%d\n", (char)SYSFS_FLAG_FW_SEL_BOOT);
5856 break;
5857 case ISCSI_BOOT_TGT_NIC_ASSOC:
5858 rc = sprintf(str, "0\n");
5859 break;
5860 default:
5861 rc = -ENOSYS;
5862 break;
5863 }
5864 return rc;
5865 }
5866
qla4xxx_show_boot_tgt_pri_info(void * data,int type,char * buf)5867 static ssize_t qla4xxx_show_boot_tgt_pri_info(void *data, int type, char *buf)
5868 {
5869 struct scsi_qla_host *ha = data;
5870 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_pri_sess);
5871
5872 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf);
5873 }
5874
qla4xxx_show_boot_tgt_sec_info(void * data,int type,char * buf)5875 static ssize_t qla4xxx_show_boot_tgt_sec_info(void *data, int type, char *buf)
5876 {
5877 struct scsi_qla_host *ha = data;
5878 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_sec_sess);
5879
5880 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf);
5881 }
5882
qla4xxx_tgt_get_attr_visibility(void * data,int type)5883 static umode_t qla4xxx_tgt_get_attr_visibility(void *data, int type)
5884 {
5885 int rc;
5886
5887 switch (type) {
5888 case ISCSI_BOOT_TGT_NAME:
5889 case ISCSI_BOOT_TGT_IP_ADDR:
5890 case ISCSI_BOOT_TGT_PORT:
5891 case ISCSI_BOOT_TGT_CHAP_NAME:
5892 case ISCSI_BOOT_TGT_CHAP_SECRET:
5893 case ISCSI_BOOT_TGT_REV_CHAP_NAME:
5894 case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
5895 case ISCSI_BOOT_TGT_NIC_ASSOC:
5896 case ISCSI_BOOT_TGT_FLAGS:
5897 rc = S_IRUGO;
5898 break;
5899 default:
5900 rc = 0;
5901 break;
5902 }
5903 return rc;
5904 }
5905
qla4xxx_boot_release(void * data)5906 static void qla4xxx_boot_release(void *data)
5907 {
5908 struct scsi_qla_host *ha = data;
5909
5910 scsi_host_put(ha->host);
5911 }
5912
get_fw_boot_info(struct scsi_qla_host * ha,uint16_t ddb_index[])5913 static int get_fw_boot_info(struct scsi_qla_host *ha, uint16_t ddb_index[])
5914 {
5915 dma_addr_t buf_dma;
5916 uint32_t addr, pri_addr, sec_addr;
5917 uint32_t offset;
5918 uint16_t func_num;
5919 uint8_t val;
5920 uint8_t *buf = NULL;
5921 size_t size = 13 * sizeof(uint8_t);
5922 int ret = QLA_SUCCESS;
5923
5924 func_num = PCI_FUNC(ha->pdev->devfn);
5925
5926 ql4_printk(KERN_INFO, ha, "%s: Get FW boot info for 0x%x func %d\n",
5927 __func__, ha->pdev->device, func_num);
5928
5929 if (is_qla40XX(ha)) {
5930 if (func_num == 1) {
5931 addr = NVRAM_PORT0_BOOT_MODE;
5932 pri_addr = NVRAM_PORT0_BOOT_PRI_TGT;
5933 sec_addr = NVRAM_PORT0_BOOT_SEC_TGT;
5934 } else if (func_num == 3) {
5935 addr = NVRAM_PORT1_BOOT_MODE;
5936 pri_addr = NVRAM_PORT1_BOOT_PRI_TGT;
5937 sec_addr = NVRAM_PORT1_BOOT_SEC_TGT;
5938 } else {
5939 ret = QLA_ERROR;
5940 goto exit_boot_info;
5941 }
5942
5943 /* Check Boot Mode */
5944 val = rd_nvram_byte(ha, addr);
5945 if (!(val & 0x07)) {
5946 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Adapter boot "
5947 "options : 0x%x\n", __func__, val));
5948 ret = QLA_ERROR;
5949 goto exit_boot_info;
5950 }
5951
5952 /* get primary valid target index */
5953 val = rd_nvram_byte(ha, pri_addr);
5954 if (val & BIT_7)
5955 ddb_index[0] = (val & 0x7f);
5956
5957 /* get secondary valid target index */
5958 val = rd_nvram_byte(ha, sec_addr);
5959 if (val & BIT_7)
5960 ddb_index[1] = (val & 0x7f);
5961 goto exit_boot_info;
5962 } else if (is_qla80XX(ha)) {
5963 buf = dma_alloc_coherent(&ha->pdev->dev, size,
5964 &buf_dma, GFP_KERNEL);
5965 if (!buf) {
5966 DEBUG2(ql4_printk(KERN_ERR, ha,
5967 "%s: Unable to allocate dma buffer\n",
5968 __func__));
5969 ret = QLA_ERROR;
5970 goto exit_boot_info;
5971 }
5972
5973 if (ha->port_num == 0)
5974 offset = BOOT_PARAM_OFFSET_PORT0;
5975 else if (ha->port_num == 1)
5976 offset = BOOT_PARAM_OFFSET_PORT1;
5977 else {
5978 ret = QLA_ERROR;
5979 goto exit_boot_info_free;
5980 }
5981 addr = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_iscsi_param * 4) +
5982 offset;
5983 if (qla4xxx_get_flash(ha, buf_dma, addr,
5984 13 * sizeof(uint8_t)) != QLA_SUCCESS) {
5985 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: Get Flash"
5986 " failed\n", ha->host_no, __func__));
5987 ret = QLA_ERROR;
5988 goto exit_boot_info_free;
5989 }
5990 /* Check Boot Mode */
5991 if (!(buf[1] & 0x07)) {
5992 DEBUG2(ql4_printk(KERN_INFO, ha, "Firmware boot options"
5993 " : 0x%x\n", buf[1]));
5994 ret = QLA_ERROR;
5995 goto exit_boot_info_free;
5996 }
5997
5998 /* get primary valid target index */
5999 if (buf[2] & BIT_7)
6000 ddb_index[0] = buf[2] & 0x7f;
6001
6002 /* get secondary valid target index */
6003 if (buf[11] & BIT_7)
6004 ddb_index[1] = buf[11] & 0x7f;
6005 } else {
6006 ret = QLA_ERROR;
6007 goto exit_boot_info;
6008 }
6009
6010 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary target ID %d, Secondary"
6011 " target ID %d\n", __func__, ddb_index[0],
6012 ddb_index[1]));
6013
6014 exit_boot_info_free:
6015 dma_free_coherent(&ha->pdev->dev, size, buf, buf_dma);
6016 exit_boot_info:
6017 ha->pri_ddb_idx = ddb_index[0];
6018 ha->sec_ddb_idx = ddb_index[1];
6019 return ret;
6020 }
6021
6022 /**
6023 * qla4xxx_get_bidi_chap - Get a BIDI CHAP user and password
6024 * @ha: pointer to adapter structure
6025 * @username: CHAP username to be returned
6026 * @password: CHAP password to be returned
6027 *
6028 * If a boot entry has BIDI CHAP enabled then we need to set the BIDI CHAP
6029 * user and password in the sysfs entry in /sys/firmware/iscsi_boot#/.
6030 * So from the CHAP cache find the first BIDI CHAP entry and set it
6031 * to the boot record in sysfs.
6032 **/
qla4xxx_get_bidi_chap(struct scsi_qla_host * ha,char * username,char * password)6033 static int qla4xxx_get_bidi_chap(struct scsi_qla_host *ha, char *username,
6034 char *password)
6035 {
6036 int i, ret = -EINVAL;
6037 int max_chap_entries = 0;
6038 struct ql4_chap_table *chap_table;
6039
6040 if (is_qla80XX(ha))
6041 max_chap_entries = (ha->hw.flt_chap_size / 2) /
6042 sizeof(struct ql4_chap_table);
6043 else
6044 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
6045
6046 if (!ha->chap_list) {
6047 ql4_printk(KERN_ERR, ha, "Do not have CHAP table cache\n");
6048 return ret;
6049 }
6050
6051 mutex_lock(&ha->chap_sem);
6052 for (i = 0; i < max_chap_entries; i++) {
6053 chap_table = (struct ql4_chap_table *)ha->chap_list + i;
6054 if (chap_table->cookie !=
6055 cpu_to_le16(CHAP_VALID_COOKIE)) {
6056 continue;
6057 }
6058
6059 if (chap_table->flags & BIT_7) /* local */
6060 continue;
6061
6062 if (!(chap_table->flags & BIT_6)) /* Not BIDI */
6063 continue;
6064
6065 strscpy(password, chap_table->secret, QL4_CHAP_MAX_SECRET_LEN);
6066 strscpy(username, chap_table->name, QL4_CHAP_MAX_NAME_LEN);
6067 ret = 0;
6068 break;
6069 }
6070 mutex_unlock(&ha->chap_sem);
6071
6072 return ret;
6073 }
6074
6075
qla4xxx_get_boot_target(struct scsi_qla_host * ha,struct ql4_boot_session_info * boot_sess,uint16_t ddb_index)6076 static int qla4xxx_get_boot_target(struct scsi_qla_host *ha,
6077 struct ql4_boot_session_info *boot_sess,
6078 uint16_t ddb_index)
6079 {
6080 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0];
6081 struct dev_db_entry *fw_ddb_entry;
6082 dma_addr_t fw_ddb_entry_dma;
6083 uint16_t idx;
6084 uint16_t options;
6085 int ret = QLA_SUCCESS;
6086
6087 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
6088 &fw_ddb_entry_dma, GFP_KERNEL);
6089 if (!fw_ddb_entry) {
6090 DEBUG2(ql4_printk(KERN_ERR, ha,
6091 "%s: Unable to allocate dma buffer.\n",
6092 __func__));
6093 ret = QLA_ERROR;
6094 return ret;
6095 }
6096
6097 if (qla4xxx_bootdb_by_index(ha, fw_ddb_entry,
6098 fw_ddb_entry_dma, ddb_index)) {
6099 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: No Flash DDB found at "
6100 "index [%d]\n", __func__, ddb_index));
6101 ret = QLA_ERROR;
6102 goto exit_boot_target;
6103 }
6104
6105 /* Update target name and IP from DDB */
6106 memcpy(boot_sess->target_name, fw_ddb_entry->iscsi_name,
6107 min(sizeof(boot_sess->target_name),
6108 sizeof(fw_ddb_entry->iscsi_name)));
6109
6110 options = le16_to_cpu(fw_ddb_entry->options);
6111 if (options & DDB_OPT_IPV6_DEVICE) {
6112 memcpy(&boot_conn->dest_ipaddr.ip_address,
6113 &fw_ddb_entry->ip_addr[0], IPv6_ADDR_LEN);
6114 } else {
6115 boot_conn->dest_ipaddr.ip_type = 0x1;
6116 memcpy(&boot_conn->dest_ipaddr.ip_address,
6117 &fw_ddb_entry->ip_addr[0], IP_ADDR_LEN);
6118 }
6119
6120 boot_conn->dest_port = le16_to_cpu(fw_ddb_entry->port);
6121
6122 /* update chap information */
6123 idx = __le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
6124
6125 if (BIT_7 & le16_to_cpu(fw_ddb_entry->iscsi_options)) {
6126
6127 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting chap\n"));
6128
6129 ret = qla4xxx_get_chap(ha, (char *)&boot_conn->chap.
6130 target_chap_name,
6131 (char *)&boot_conn->chap.target_secret,
6132 idx);
6133 if (ret) {
6134 ql4_printk(KERN_ERR, ha, "Failed to set chap\n");
6135 ret = QLA_ERROR;
6136 goto exit_boot_target;
6137 }
6138
6139 boot_conn->chap.target_chap_name_length = QL4_CHAP_MAX_NAME_LEN;
6140 boot_conn->chap.target_secret_length = QL4_CHAP_MAX_SECRET_LEN;
6141 }
6142
6143 if (BIT_4 & le16_to_cpu(fw_ddb_entry->iscsi_options)) {
6144
6145 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting BIDI chap\n"));
6146
6147 ret = qla4xxx_get_bidi_chap(ha,
6148 (char *)&boot_conn->chap.intr_chap_name,
6149 (char *)&boot_conn->chap.intr_secret);
6150
6151 if (ret) {
6152 ql4_printk(KERN_ERR, ha, "Failed to set BIDI chap\n");
6153 ret = QLA_ERROR;
6154 goto exit_boot_target;
6155 }
6156
6157 boot_conn->chap.intr_chap_name_length = QL4_CHAP_MAX_NAME_LEN;
6158 boot_conn->chap.intr_secret_length = QL4_CHAP_MAX_SECRET_LEN;
6159 }
6160
6161 exit_boot_target:
6162 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
6163 fw_ddb_entry, fw_ddb_entry_dma);
6164 return ret;
6165 }
6166
qla4xxx_get_boot_info(struct scsi_qla_host * ha)6167 static int qla4xxx_get_boot_info(struct scsi_qla_host *ha)
6168 {
6169 uint16_t ddb_index[2];
6170 int ret = QLA_ERROR;
6171 int rval;
6172
6173 memset(ddb_index, 0, sizeof(ddb_index));
6174 ddb_index[0] = 0xffff;
6175 ddb_index[1] = 0xffff;
6176 ret = get_fw_boot_info(ha, ddb_index);
6177 if (ret != QLA_SUCCESS) {
6178 DEBUG2(ql4_printk(KERN_INFO, ha,
6179 "%s: No boot target configured.\n", __func__));
6180 return ret;
6181 }
6182
6183 if (ql4xdisablesysfsboot)
6184 return QLA_SUCCESS;
6185
6186 if (ddb_index[0] == 0xffff)
6187 goto sec_target;
6188
6189 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_pri_sess),
6190 ddb_index[0]);
6191 if (rval != QLA_SUCCESS) {
6192 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary boot target not "
6193 "configured\n", __func__));
6194 } else
6195 ret = QLA_SUCCESS;
6196
6197 sec_target:
6198 if (ddb_index[1] == 0xffff)
6199 goto exit_get_boot_info;
6200
6201 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_sec_sess),
6202 ddb_index[1]);
6203 if (rval != QLA_SUCCESS) {
6204 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Secondary boot target not"
6205 " configured\n", __func__));
6206 } else
6207 ret = QLA_SUCCESS;
6208
6209 exit_get_boot_info:
6210 return ret;
6211 }
6212
qla4xxx_setup_boot_info(struct scsi_qla_host * ha)6213 static int qla4xxx_setup_boot_info(struct scsi_qla_host *ha)
6214 {
6215 struct iscsi_boot_kobj *boot_kobj;
6216
6217 if (qla4xxx_get_boot_info(ha) != QLA_SUCCESS)
6218 return QLA_ERROR;
6219
6220 if (ql4xdisablesysfsboot) {
6221 ql4_printk(KERN_INFO, ha,
6222 "%s: syfsboot disabled - driver will trigger login "
6223 "and publish session for discovery .\n", __func__);
6224 return QLA_SUCCESS;
6225 }
6226
6227
6228 ha->boot_kset = iscsi_boot_create_host_kset(ha->host->host_no);
6229 if (!ha->boot_kset)
6230 goto kset_free;
6231
6232 if (!scsi_host_get(ha->host))
6233 goto kset_free;
6234 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 0, ha,
6235 qla4xxx_show_boot_tgt_pri_info,
6236 qla4xxx_tgt_get_attr_visibility,
6237 qla4xxx_boot_release);
6238 if (!boot_kobj)
6239 goto put_host;
6240
6241 if (!scsi_host_get(ha->host))
6242 goto kset_free;
6243 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 1, ha,
6244 qla4xxx_show_boot_tgt_sec_info,
6245 qla4xxx_tgt_get_attr_visibility,
6246 qla4xxx_boot_release);
6247 if (!boot_kobj)
6248 goto put_host;
6249
6250 if (!scsi_host_get(ha->host))
6251 goto kset_free;
6252 boot_kobj = iscsi_boot_create_initiator(ha->boot_kset, 0, ha,
6253 qla4xxx_show_boot_ini_info,
6254 qla4xxx_ini_get_attr_visibility,
6255 qla4xxx_boot_release);
6256 if (!boot_kobj)
6257 goto put_host;
6258
6259 if (!scsi_host_get(ha->host))
6260 goto kset_free;
6261 boot_kobj = iscsi_boot_create_ethernet(ha->boot_kset, 0, ha,
6262 qla4xxx_show_boot_eth_info,
6263 qla4xxx_eth_get_attr_visibility,
6264 qla4xxx_boot_release);
6265 if (!boot_kobj)
6266 goto put_host;
6267
6268 return QLA_SUCCESS;
6269
6270 put_host:
6271 scsi_host_put(ha->host);
6272 kset_free:
6273 iscsi_boot_destroy_kset(ha->boot_kset);
6274 return -ENOMEM;
6275 }
6276
6277
qla4xxx_get_param_ddb(struct ddb_entry * ddb_entry,struct ql4_tuple_ddb * tddb)6278 static void qla4xxx_get_param_ddb(struct ddb_entry *ddb_entry,
6279 struct ql4_tuple_ddb *tddb)
6280 {
6281 struct iscsi_cls_session *cls_sess;
6282 struct iscsi_cls_conn *cls_conn;
6283 struct iscsi_session *sess;
6284 struct iscsi_conn *conn;
6285
6286 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
6287 cls_sess = ddb_entry->sess;
6288 sess = cls_sess->dd_data;
6289 cls_conn = ddb_entry->conn;
6290 conn = cls_conn->dd_data;
6291
6292 tddb->tpgt = sess->tpgt;
6293 tddb->port = conn->persistent_port;
6294 strscpy(tddb->iscsi_name, sess->targetname, ISCSI_NAME_SIZE);
6295 strscpy(tddb->ip_addr, conn->persistent_address, DDB_IPADDR_LEN);
6296 }
6297
qla4xxx_convert_param_ddb(struct dev_db_entry * fw_ddb_entry,struct ql4_tuple_ddb * tddb,uint8_t * flash_isid)6298 static void qla4xxx_convert_param_ddb(struct dev_db_entry *fw_ddb_entry,
6299 struct ql4_tuple_ddb *tddb,
6300 uint8_t *flash_isid)
6301 {
6302 uint16_t options = 0;
6303
6304 tddb->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
6305 memcpy(&tddb->iscsi_name[0], &fw_ddb_entry->iscsi_name[0],
6306 min(sizeof(tddb->iscsi_name), sizeof(fw_ddb_entry->iscsi_name)));
6307
6308 options = le16_to_cpu(fw_ddb_entry->options);
6309 if (options & DDB_OPT_IPV6_DEVICE)
6310 sprintf(tddb->ip_addr, "%pI6", fw_ddb_entry->ip_addr);
6311 else
6312 sprintf(tddb->ip_addr, "%pI4", fw_ddb_entry->ip_addr);
6313
6314 tddb->port = le16_to_cpu(fw_ddb_entry->port);
6315
6316 if (flash_isid == NULL)
6317 memcpy(&tddb->isid[0], &fw_ddb_entry->isid[0],
6318 sizeof(tddb->isid));
6319 else
6320 memcpy(&tddb->isid[0], &flash_isid[0], sizeof(tddb->isid));
6321 }
6322
qla4xxx_compare_tuple_ddb(struct scsi_qla_host * ha,struct ql4_tuple_ddb * old_tddb,struct ql4_tuple_ddb * new_tddb,uint8_t is_isid_compare)6323 static int qla4xxx_compare_tuple_ddb(struct scsi_qla_host *ha,
6324 struct ql4_tuple_ddb *old_tddb,
6325 struct ql4_tuple_ddb *new_tddb,
6326 uint8_t is_isid_compare)
6327 {
6328 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name))
6329 return QLA_ERROR;
6330
6331 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr))
6332 return QLA_ERROR;
6333
6334 if (old_tddb->port != new_tddb->port)
6335 return QLA_ERROR;
6336
6337 /* For multi sessions, driver generates the ISID, so do not compare
6338 * ISID in reset path since it would be a comparison between the
6339 * driver generated ISID and firmware generated ISID. This could
6340 * lead to adding duplicated DDBs in the list as driver generated
6341 * ISID would not match firmware generated ISID.
6342 */
6343 if (is_isid_compare) {
6344 DEBUG2(ql4_printk(KERN_INFO, ha,
6345 "%s: old ISID [%pmR] New ISID [%pmR]\n",
6346 __func__, old_tddb->isid, new_tddb->isid));
6347
6348 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0],
6349 sizeof(old_tddb->isid)))
6350 return QLA_ERROR;
6351 }
6352
6353 DEBUG2(ql4_printk(KERN_INFO, ha,
6354 "Match Found, fw[%d,%d,%s,%s], [%d,%d,%s,%s]",
6355 old_tddb->port, old_tddb->tpgt, old_tddb->ip_addr,
6356 old_tddb->iscsi_name, new_tddb->port, new_tddb->tpgt,
6357 new_tddb->ip_addr, new_tddb->iscsi_name));
6358
6359 return QLA_SUCCESS;
6360 }
6361
qla4xxx_is_session_exists(struct scsi_qla_host * ha,struct dev_db_entry * fw_ddb_entry,uint32_t * index)6362 static int qla4xxx_is_session_exists(struct scsi_qla_host *ha,
6363 struct dev_db_entry *fw_ddb_entry,
6364 uint32_t *index)
6365 {
6366 struct ddb_entry *ddb_entry;
6367 struct ql4_tuple_ddb *fw_tddb = NULL;
6368 struct ql4_tuple_ddb *tmp_tddb = NULL;
6369 int idx;
6370 int ret = QLA_ERROR;
6371
6372 fw_tddb = vzalloc(sizeof(*fw_tddb));
6373 if (!fw_tddb) {
6374 DEBUG2(ql4_printk(KERN_WARNING, ha,
6375 "Memory Allocation failed.\n"));
6376 ret = QLA_SUCCESS;
6377 goto exit_check;
6378 }
6379
6380 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
6381 if (!tmp_tddb) {
6382 DEBUG2(ql4_printk(KERN_WARNING, ha,
6383 "Memory Allocation failed.\n"));
6384 ret = QLA_SUCCESS;
6385 goto exit_check;
6386 }
6387
6388 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL);
6389
6390 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
6391 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
6392 if (ddb_entry == NULL)
6393 continue;
6394
6395 qla4xxx_get_param_ddb(ddb_entry, tmp_tddb);
6396 if (!qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, false)) {
6397 ret = QLA_SUCCESS; /* found */
6398 if (index != NULL)
6399 *index = idx;
6400 goto exit_check;
6401 }
6402 }
6403
6404 exit_check:
6405 vfree(fw_tddb);
6406 vfree(tmp_tddb);
6407 return ret;
6408 }
6409
6410 /**
6411 * qla4xxx_check_existing_isid - check if target with same isid exist
6412 * in target list
6413 * @list_nt: list of target
6414 * @isid: isid to check
6415 *
6416 * This routine return QLA_SUCCESS if target with same isid exist
6417 **/
qla4xxx_check_existing_isid(struct list_head * list_nt,uint8_t * isid)6418 static int qla4xxx_check_existing_isid(struct list_head *list_nt, uint8_t *isid)
6419 {
6420 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp;
6421 struct dev_db_entry *fw_ddb_entry;
6422
6423 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
6424 fw_ddb_entry = &nt_ddb_idx->fw_ddb;
6425
6426 if (memcmp(&fw_ddb_entry->isid[0], &isid[0],
6427 sizeof(nt_ddb_idx->fw_ddb.isid)) == 0) {
6428 return QLA_SUCCESS;
6429 }
6430 }
6431 return QLA_ERROR;
6432 }
6433
6434 /**
6435 * qla4xxx_update_isid - compare ddbs and updated isid
6436 * @ha: Pointer to host adapter structure.
6437 * @list_nt: list of nt target
6438 * @fw_ddb_entry: firmware ddb entry
6439 *
6440 * This routine update isid if ddbs have same iqn, same isid and
6441 * different IP addr.
6442 * Return QLA_SUCCESS if isid is updated.
6443 **/
qla4xxx_update_isid(struct scsi_qla_host * ha,struct list_head * list_nt,struct dev_db_entry * fw_ddb_entry)6444 static int qla4xxx_update_isid(struct scsi_qla_host *ha,
6445 struct list_head *list_nt,
6446 struct dev_db_entry *fw_ddb_entry)
6447 {
6448 uint8_t base_value, i;
6449
6450 base_value = fw_ddb_entry->isid[1] & 0x1f;
6451 for (i = 0; i < 8; i++) {
6452 fw_ddb_entry->isid[1] = (base_value | (i << 5));
6453 if (qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid))
6454 break;
6455 }
6456
6457 if (!qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid))
6458 return QLA_ERROR;
6459
6460 return QLA_SUCCESS;
6461 }
6462
6463 /**
6464 * qla4xxx_should_update_isid - check if isid need to update
6465 * @ha: Pointer to host adapter structure.
6466 * @old_tddb: ddb tuple
6467 * @new_tddb: ddb tuple
6468 *
6469 * Return QLA_SUCCESS if different IP, different PORT, same iqn,
6470 * same isid
6471 **/
qla4xxx_should_update_isid(struct scsi_qla_host * ha,struct ql4_tuple_ddb * old_tddb,struct ql4_tuple_ddb * new_tddb)6472 static int qla4xxx_should_update_isid(struct scsi_qla_host *ha,
6473 struct ql4_tuple_ddb *old_tddb,
6474 struct ql4_tuple_ddb *new_tddb)
6475 {
6476 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr) == 0) {
6477 /* Same ip */
6478 if (old_tddb->port == new_tddb->port)
6479 return QLA_ERROR;
6480 }
6481
6482 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name))
6483 /* different iqn */
6484 return QLA_ERROR;
6485
6486 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0],
6487 sizeof(old_tddb->isid)))
6488 /* different isid */
6489 return QLA_ERROR;
6490
6491 return QLA_SUCCESS;
6492 }
6493
6494 /**
6495 * qla4xxx_is_flash_ddb_exists - check if fw_ddb_entry already exists in list_nt
6496 * @ha: Pointer to host adapter structure.
6497 * @list_nt: list of nt target.
6498 * @fw_ddb_entry: firmware ddb entry.
6499 *
6500 * This routine check if fw_ddb_entry already exists in list_nt to avoid
6501 * duplicate ddb in list_nt.
6502 * Return QLA_SUCCESS if duplicate ddb exit in list_nl.
6503 * Note: This function also update isid of DDB if required.
6504 **/
6505
qla4xxx_is_flash_ddb_exists(struct scsi_qla_host * ha,struct list_head * list_nt,struct dev_db_entry * fw_ddb_entry)6506 static int qla4xxx_is_flash_ddb_exists(struct scsi_qla_host *ha,
6507 struct list_head *list_nt,
6508 struct dev_db_entry *fw_ddb_entry)
6509 {
6510 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp;
6511 struct ql4_tuple_ddb *fw_tddb = NULL;
6512 struct ql4_tuple_ddb *tmp_tddb = NULL;
6513 int rval, ret = QLA_ERROR;
6514
6515 fw_tddb = vzalloc(sizeof(*fw_tddb));
6516 if (!fw_tddb) {
6517 DEBUG2(ql4_printk(KERN_WARNING, ha,
6518 "Memory Allocation failed.\n"));
6519 ret = QLA_SUCCESS;
6520 goto exit_check;
6521 }
6522
6523 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
6524 if (!tmp_tddb) {
6525 DEBUG2(ql4_printk(KERN_WARNING, ha,
6526 "Memory Allocation failed.\n"));
6527 ret = QLA_SUCCESS;
6528 goto exit_check;
6529 }
6530
6531 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL);
6532
6533 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
6534 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb,
6535 nt_ddb_idx->flash_isid);
6536 ret = qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, true);
6537 /* found duplicate ddb */
6538 if (ret == QLA_SUCCESS)
6539 goto exit_check;
6540 }
6541
6542 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
6543 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb, NULL);
6544
6545 ret = qla4xxx_should_update_isid(ha, tmp_tddb, fw_tddb);
6546 if (ret == QLA_SUCCESS) {
6547 rval = qla4xxx_update_isid(ha, list_nt, fw_ddb_entry);
6548 if (rval == QLA_SUCCESS)
6549 ret = QLA_ERROR;
6550 else
6551 ret = QLA_SUCCESS;
6552
6553 goto exit_check;
6554 }
6555 }
6556
6557 exit_check:
6558 vfree(fw_tddb);
6559 vfree(tmp_tddb);
6560 return ret;
6561 }
6562
qla4xxx_free_ddb_list(struct list_head * list_ddb)6563 static void qla4xxx_free_ddb_list(struct list_head *list_ddb)
6564 {
6565 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
6566
6567 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
6568 list_del_init(&ddb_idx->list);
6569 vfree(ddb_idx);
6570 }
6571 }
6572
qla4xxx_get_ep_fwdb(struct scsi_qla_host * ha,struct dev_db_entry * fw_ddb_entry)6573 static struct iscsi_endpoint *qla4xxx_get_ep_fwdb(struct scsi_qla_host *ha,
6574 struct dev_db_entry *fw_ddb_entry)
6575 {
6576 struct iscsi_endpoint *ep;
6577 struct sockaddr_in *addr;
6578 struct sockaddr_in6 *addr6;
6579 struct sockaddr *t_addr;
6580 struct sockaddr_storage *dst_addr;
6581 char *ip;
6582
6583 /* TODO: need to destroy on unload iscsi_endpoint*/
6584 dst_addr = vmalloc(sizeof(*dst_addr));
6585 if (!dst_addr)
6586 return NULL;
6587
6588 if (fw_ddb_entry->options & DDB_OPT_IPV6_DEVICE) {
6589 t_addr = (struct sockaddr *)dst_addr;
6590 t_addr->sa_family = AF_INET6;
6591 addr6 = (struct sockaddr_in6 *)dst_addr;
6592 ip = (char *)&addr6->sin6_addr;
6593 memcpy(ip, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN);
6594 addr6->sin6_port = htons(le16_to_cpu(fw_ddb_entry->port));
6595
6596 } else {
6597 t_addr = (struct sockaddr *)dst_addr;
6598 t_addr->sa_family = AF_INET;
6599 addr = (struct sockaddr_in *)dst_addr;
6600 ip = (char *)&addr->sin_addr;
6601 memcpy(ip, fw_ddb_entry->ip_addr, IP_ADDR_LEN);
6602 addr->sin_port = htons(le16_to_cpu(fw_ddb_entry->port));
6603 }
6604
6605 ep = qla4xxx_ep_connect(ha->host, (struct sockaddr *)dst_addr, 0);
6606 vfree(dst_addr);
6607 return ep;
6608 }
6609
qla4xxx_verify_boot_idx(struct scsi_qla_host * ha,uint16_t idx)6610 static int qla4xxx_verify_boot_idx(struct scsi_qla_host *ha, uint16_t idx)
6611 {
6612 if (ql4xdisablesysfsboot)
6613 return QLA_SUCCESS;
6614 if (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx)
6615 return QLA_ERROR;
6616 return QLA_SUCCESS;
6617 }
6618
qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host * ha,struct ddb_entry * ddb_entry,uint16_t idx)6619 static void qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha,
6620 struct ddb_entry *ddb_entry,
6621 uint16_t idx)
6622 {
6623 uint16_t def_timeout;
6624
6625 ddb_entry->ddb_type = FLASH_DDB;
6626 ddb_entry->fw_ddb_index = INVALID_ENTRY;
6627 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE;
6628 ddb_entry->ha = ha;
6629 ddb_entry->unblock_sess = qla4xxx_unblock_flash_ddb;
6630 ddb_entry->ddb_change = qla4xxx_flash_ddb_change;
6631 ddb_entry->chap_tbl_idx = INVALID_ENTRY;
6632
6633 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY);
6634 atomic_set(&ddb_entry->relogin_timer, 0);
6635 atomic_set(&ddb_entry->relogin_retry_count, 0);
6636 def_timeout = le16_to_cpu(ddb_entry->fw_ddb_entry.def_timeout);
6637 ddb_entry->default_relogin_timeout =
6638 (def_timeout > LOGIN_TOV) && (def_timeout < LOGIN_TOV * 10) ?
6639 def_timeout : LOGIN_TOV;
6640 ddb_entry->default_time2wait =
6641 le16_to_cpu(ddb_entry->fw_ddb_entry.iscsi_def_time2wait);
6642
6643 if (ql4xdisablesysfsboot &&
6644 (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx))
6645 set_bit(DF_BOOT_TGT, &ddb_entry->flags);
6646 }
6647
qla4xxx_wait_for_ip_configuration(struct scsi_qla_host * ha)6648 static void qla4xxx_wait_for_ip_configuration(struct scsi_qla_host *ha)
6649 {
6650 uint32_t idx = 0;
6651 uint32_t ip_idx[IP_ADDR_COUNT] = {0, 1, 2, 3}; /* 4 IP interfaces */
6652 uint32_t sts[MBOX_REG_COUNT];
6653 uint32_t ip_state;
6654 unsigned long wtime;
6655 int ret;
6656
6657 wtime = jiffies + (HZ * IP_CONFIG_TOV);
6658 do {
6659 for (idx = 0; idx < IP_ADDR_COUNT; idx++) {
6660 if (ip_idx[idx] == -1)
6661 continue;
6662
6663 ret = qla4xxx_get_ip_state(ha, 0, ip_idx[idx], sts);
6664
6665 if (ret == QLA_ERROR) {
6666 ip_idx[idx] = -1;
6667 continue;
6668 }
6669
6670 ip_state = (sts[1] & IP_STATE_MASK) >> IP_STATE_SHIFT;
6671
6672 DEBUG2(ql4_printk(KERN_INFO, ha,
6673 "Waiting for IP state for idx = %d, state = 0x%x\n",
6674 ip_idx[idx], ip_state));
6675 if (ip_state == IP_ADDRSTATE_UNCONFIGURED ||
6676 ip_state == IP_ADDRSTATE_INVALID ||
6677 ip_state == IP_ADDRSTATE_PREFERRED ||
6678 ip_state == IP_ADDRSTATE_DEPRICATED ||
6679 ip_state == IP_ADDRSTATE_DISABLING)
6680 ip_idx[idx] = -1;
6681 }
6682
6683 /* Break if all IP states checked */
6684 if ((ip_idx[0] == -1) &&
6685 (ip_idx[1] == -1) &&
6686 (ip_idx[2] == -1) &&
6687 (ip_idx[3] == -1))
6688 break;
6689 schedule_timeout_uninterruptible(HZ);
6690 } while (time_after(wtime, jiffies));
6691 }
6692
qla4xxx_cmp_fw_stentry(struct dev_db_entry * fw_ddb_entry,struct dev_db_entry * flash_ddb_entry)6693 static int qla4xxx_cmp_fw_stentry(struct dev_db_entry *fw_ddb_entry,
6694 struct dev_db_entry *flash_ddb_entry)
6695 {
6696 uint16_t options = 0;
6697 size_t ip_len = IP_ADDR_LEN;
6698
6699 options = le16_to_cpu(fw_ddb_entry->options);
6700 if (options & DDB_OPT_IPV6_DEVICE)
6701 ip_len = IPv6_ADDR_LEN;
6702
6703 if (memcmp(fw_ddb_entry->ip_addr, flash_ddb_entry->ip_addr, ip_len))
6704 return QLA_ERROR;
6705
6706 if (memcmp(&fw_ddb_entry->isid[0], &flash_ddb_entry->isid[0],
6707 sizeof(fw_ddb_entry->isid)))
6708 return QLA_ERROR;
6709
6710 if (memcmp(&fw_ddb_entry->port, &flash_ddb_entry->port,
6711 sizeof(fw_ddb_entry->port)))
6712 return QLA_ERROR;
6713
6714 return QLA_SUCCESS;
6715 }
6716
qla4xxx_find_flash_st_idx(struct scsi_qla_host * ha,struct dev_db_entry * fw_ddb_entry,uint32_t fw_idx,uint32_t * flash_index)6717 static int qla4xxx_find_flash_st_idx(struct scsi_qla_host *ha,
6718 struct dev_db_entry *fw_ddb_entry,
6719 uint32_t fw_idx, uint32_t *flash_index)
6720 {
6721 struct dev_db_entry *flash_ddb_entry;
6722 dma_addr_t flash_ddb_entry_dma;
6723 uint32_t idx = 0;
6724 int max_ddbs;
6725 int ret = QLA_ERROR, status;
6726
6727 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
6728 MAX_DEV_DB_ENTRIES;
6729
6730 flash_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
6731 &flash_ddb_entry_dma);
6732 if (flash_ddb_entry == NULL || fw_ddb_entry == NULL) {
6733 ql4_printk(KERN_ERR, ha, "Out of memory\n");
6734 goto exit_find_st_idx;
6735 }
6736
6737 status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry,
6738 flash_ddb_entry_dma, fw_idx);
6739 if (status == QLA_SUCCESS) {
6740 status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry);
6741 if (status == QLA_SUCCESS) {
6742 *flash_index = fw_idx;
6743 ret = QLA_SUCCESS;
6744 goto exit_find_st_idx;
6745 }
6746 }
6747
6748 for (idx = 0; idx < max_ddbs; idx++) {
6749 status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry,
6750 flash_ddb_entry_dma, idx);
6751 if (status == QLA_ERROR)
6752 continue;
6753
6754 status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry);
6755 if (status == QLA_SUCCESS) {
6756 *flash_index = idx;
6757 ret = QLA_SUCCESS;
6758 goto exit_find_st_idx;
6759 }
6760 }
6761
6762 if (idx == max_ddbs)
6763 ql4_printk(KERN_ERR, ha, "Failed to find ST [%d] in flash\n",
6764 fw_idx);
6765
6766 exit_find_st_idx:
6767 if (flash_ddb_entry)
6768 dma_pool_free(ha->fw_ddb_dma_pool, flash_ddb_entry,
6769 flash_ddb_entry_dma);
6770
6771 return ret;
6772 }
6773
qla4xxx_build_st_list(struct scsi_qla_host * ha,struct list_head * list_st)6774 static void qla4xxx_build_st_list(struct scsi_qla_host *ha,
6775 struct list_head *list_st)
6776 {
6777 struct qla_ddb_index *st_ddb_idx;
6778 int max_ddbs;
6779 int fw_idx_size;
6780 struct dev_db_entry *fw_ddb_entry;
6781 dma_addr_t fw_ddb_dma;
6782 int ret;
6783 uint32_t idx = 0, next_idx = 0;
6784 uint32_t state = 0, conn_err = 0;
6785 uint32_t flash_index = -1;
6786 uint16_t conn_id = 0;
6787
6788 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
6789 &fw_ddb_dma);
6790 if (fw_ddb_entry == NULL) {
6791 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
6792 goto exit_st_list;
6793 }
6794
6795 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
6796 MAX_DEV_DB_ENTRIES;
6797 fw_idx_size = sizeof(struct qla_ddb_index);
6798
6799 for (idx = 0; idx < max_ddbs; idx = next_idx) {
6800 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
6801 NULL, &next_idx, &state,
6802 &conn_err, NULL, &conn_id);
6803 if (ret == QLA_ERROR)
6804 break;
6805
6806 /* Ignore DDB if invalid state (unassigned) */
6807 if (state == DDB_DS_UNASSIGNED)
6808 goto continue_next_st;
6809
6810 /* Check if ST, add to the list_st */
6811 if (strlen((char *) fw_ddb_entry->iscsi_name) != 0)
6812 goto continue_next_st;
6813
6814 st_ddb_idx = vzalloc(fw_idx_size);
6815 if (!st_ddb_idx)
6816 break;
6817
6818 ret = qla4xxx_find_flash_st_idx(ha, fw_ddb_entry, idx,
6819 &flash_index);
6820 if (ret == QLA_ERROR) {
6821 ql4_printk(KERN_ERR, ha,
6822 "No flash entry for ST at idx [%d]\n", idx);
6823 st_ddb_idx->flash_ddb_idx = idx;
6824 } else {
6825 ql4_printk(KERN_INFO, ha,
6826 "ST at idx [%d] is stored at flash [%d]\n",
6827 idx, flash_index);
6828 st_ddb_idx->flash_ddb_idx = flash_index;
6829 }
6830
6831 st_ddb_idx->fw_ddb_idx = idx;
6832
6833 list_add_tail(&st_ddb_idx->list, list_st);
6834 continue_next_st:
6835 if (next_idx == 0)
6836 break;
6837 }
6838
6839 exit_st_list:
6840 if (fw_ddb_entry)
6841 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
6842 }
6843
6844 /**
6845 * qla4xxx_remove_failed_ddb - Remove inactive or failed ddb from list
6846 * @ha: pointer to adapter structure
6847 * @list_ddb: List from which failed ddb to be removed
6848 *
6849 * Iterate over the list of DDBs and find and remove DDBs that are either in
6850 * no connection active state or failed state
6851 **/
qla4xxx_remove_failed_ddb(struct scsi_qla_host * ha,struct list_head * list_ddb)6852 static void qla4xxx_remove_failed_ddb(struct scsi_qla_host *ha,
6853 struct list_head *list_ddb)
6854 {
6855 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
6856 uint32_t next_idx = 0;
6857 uint32_t state = 0, conn_err = 0;
6858 int ret;
6859
6860 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
6861 ret = qla4xxx_get_fwddb_entry(ha, ddb_idx->fw_ddb_idx,
6862 NULL, 0, NULL, &next_idx, &state,
6863 &conn_err, NULL, NULL);
6864 if (ret == QLA_ERROR)
6865 continue;
6866
6867 if (state == DDB_DS_NO_CONNECTION_ACTIVE ||
6868 state == DDB_DS_SESSION_FAILED) {
6869 list_del_init(&ddb_idx->list);
6870 vfree(ddb_idx);
6871 }
6872 }
6873 }
6874
qla4xxx_update_sess_disc_idx(struct scsi_qla_host * ha,struct ddb_entry * ddb_entry,struct dev_db_entry * fw_ddb_entry)6875 static void qla4xxx_update_sess_disc_idx(struct scsi_qla_host *ha,
6876 struct ddb_entry *ddb_entry,
6877 struct dev_db_entry *fw_ddb_entry)
6878 {
6879 struct iscsi_cls_session *cls_sess;
6880 struct iscsi_session *sess;
6881 uint32_t max_ddbs = 0;
6882 uint16_t ddb_link = -1;
6883
6884 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
6885 MAX_DEV_DB_ENTRIES;
6886
6887 cls_sess = ddb_entry->sess;
6888 sess = cls_sess->dd_data;
6889
6890 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
6891 if (ddb_link < max_ddbs)
6892 sess->discovery_parent_idx = ddb_link;
6893 else
6894 sess->discovery_parent_idx = DDB_NO_LINK;
6895 }
6896
qla4xxx_sess_conn_setup(struct scsi_qla_host * ha,struct dev_db_entry * fw_ddb_entry,int is_reset,uint16_t idx)6897 static int qla4xxx_sess_conn_setup(struct scsi_qla_host *ha,
6898 struct dev_db_entry *fw_ddb_entry,
6899 int is_reset, uint16_t idx)
6900 {
6901 struct iscsi_cls_session *cls_sess;
6902 struct iscsi_session *sess;
6903 struct iscsi_cls_conn *cls_conn;
6904 struct iscsi_endpoint *ep;
6905 uint16_t cmds_max = 32;
6906 uint16_t conn_id = 0;
6907 uint32_t initial_cmdsn = 0;
6908 int ret = QLA_SUCCESS;
6909
6910 struct ddb_entry *ddb_entry = NULL;
6911
6912 /* Create session object, with INVALID_ENTRY,
6913 * the targer_id would get set when we issue the login
6914 */
6915 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, ha->host,
6916 cmds_max, sizeof(struct ddb_entry),
6917 sizeof(struct ql4_task_data),
6918 initial_cmdsn, INVALID_ENTRY);
6919 if (!cls_sess) {
6920 ret = QLA_ERROR;
6921 goto exit_setup;
6922 }
6923
6924 /*
6925 * so calling module_put function to decrement the
6926 * reference count.
6927 **/
6928 module_put(qla4xxx_iscsi_transport.owner);
6929 sess = cls_sess->dd_data;
6930 ddb_entry = sess->dd_data;
6931 ddb_entry->sess = cls_sess;
6932
6933 cls_sess->recovery_tmo = ql4xsess_recovery_tmo;
6934 memcpy(&ddb_entry->fw_ddb_entry, fw_ddb_entry,
6935 sizeof(struct dev_db_entry));
6936
6937 qla4xxx_setup_flash_ddb_entry(ha, ddb_entry, idx);
6938
6939 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), conn_id);
6940
6941 if (!cls_conn) {
6942 ret = QLA_ERROR;
6943 goto exit_setup;
6944 }
6945
6946 ddb_entry->conn = cls_conn;
6947
6948 /* Setup ep, for displaying attributes in sysfs */
6949 ep = qla4xxx_get_ep_fwdb(ha, fw_ddb_entry);
6950 if (ep) {
6951 ep->conn = cls_conn;
6952 cls_conn->ep = ep;
6953 } else {
6954 DEBUG2(ql4_printk(KERN_ERR, ha, "Unable to get ep\n"));
6955 ret = QLA_ERROR;
6956 goto exit_setup;
6957 }
6958
6959 /* Update sess/conn params */
6960 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn);
6961 qla4xxx_update_sess_disc_idx(ha, ddb_entry, fw_ddb_entry);
6962
6963 if (is_reset == RESET_ADAPTER) {
6964 iscsi_block_session(cls_sess);
6965 /* Use the relogin path to discover new devices
6966 * by short-circuiting the logic of setting
6967 * timer to relogin - instead set the flags
6968 * to initiate login right away.
6969 */
6970 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
6971 set_bit(DF_RELOGIN, &ddb_entry->flags);
6972 }
6973
6974 exit_setup:
6975 return ret;
6976 }
6977
qla4xxx_update_fw_ddb_link(struct scsi_qla_host * ha,struct list_head * list_ddb,struct dev_db_entry * fw_ddb_entry)6978 static void qla4xxx_update_fw_ddb_link(struct scsi_qla_host *ha,
6979 struct list_head *list_ddb,
6980 struct dev_db_entry *fw_ddb_entry)
6981 {
6982 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
6983 uint16_t ddb_link;
6984
6985 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
6986
6987 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
6988 if (ddb_idx->fw_ddb_idx == ddb_link) {
6989 DEBUG2(ql4_printk(KERN_INFO, ha,
6990 "Updating NT parent idx from [%d] to [%d]\n",
6991 ddb_link, ddb_idx->flash_ddb_idx));
6992 fw_ddb_entry->ddb_link =
6993 cpu_to_le16(ddb_idx->flash_ddb_idx);
6994 return;
6995 }
6996 }
6997 }
6998
qla4xxx_build_nt_list(struct scsi_qla_host * ha,struct list_head * list_nt,struct list_head * list_st,int is_reset)6999 static void qla4xxx_build_nt_list(struct scsi_qla_host *ha,
7000 struct list_head *list_nt,
7001 struct list_head *list_st,
7002 int is_reset)
7003 {
7004 struct dev_db_entry *fw_ddb_entry;
7005 struct ddb_entry *ddb_entry = NULL;
7006 dma_addr_t fw_ddb_dma;
7007 int max_ddbs;
7008 int fw_idx_size;
7009 int ret;
7010 uint32_t idx = 0, next_idx = 0;
7011 uint32_t state = 0, conn_err = 0;
7012 uint32_t ddb_idx = -1;
7013 uint16_t conn_id = 0;
7014 uint16_t ddb_link = -1;
7015 struct qla_ddb_index *nt_ddb_idx;
7016
7017 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
7018 &fw_ddb_dma);
7019 if (fw_ddb_entry == NULL) {
7020 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
7021 goto exit_nt_list;
7022 }
7023 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
7024 MAX_DEV_DB_ENTRIES;
7025 fw_idx_size = sizeof(struct qla_ddb_index);
7026
7027 for (idx = 0; idx < max_ddbs; idx = next_idx) {
7028 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
7029 NULL, &next_idx, &state,
7030 &conn_err, NULL, &conn_id);
7031 if (ret == QLA_ERROR)
7032 break;
7033
7034 if (qla4xxx_verify_boot_idx(ha, idx) != QLA_SUCCESS)
7035 goto continue_next_nt;
7036
7037 /* Check if NT, then add to list it */
7038 if (strlen((char *) fw_ddb_entry->iscsi_name) == 0)
7039 goto continue_next_nt;
7040
7041 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
7042 if (ddb_link < max_ddbs)
7043 qla4xxx_update_fw_ddb_link(ha, list_st, fw_ddb_entry);
7044
7045 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE ||
7046 state == DDB_DS_SESSION_FAILED) &&
7047 (is_reset == INIT_ADAPTER))
7048 goto continue_next_nt;
7049
7050 DEBUG2(ql4_printk(KERN_INFO, ha,
7051 "Adding DDB to session = 0x%x\n", idx));
7052
7053 if (is_reset == INIT_ADAPTER) {
7054 nt_ddb_idx = vmalloc(fw_idx_size);
7055 if (!nt_ddb_idx)
7056 break;
7057
7058 nt_ddb_idx->fw_ddb_idx = idx;
7059
7060 /* Copy original isid as it may get updated in function
7061 * qla4xxx_update_isid(). We need original isid in
7062 * function qla4xxx_compare_tuple_ddb to find duplicate
7063 * target */
7064 memcpy(&nt_ddb_idx->flash_isid[0],
7065 &fw_ddb_entry->isid[0],
7066 sizeof(nt_ddb_idx->flash_isid));
7067
7068 ret = qla4xxx_is_flash_ddb_exists(ha, list_nt,
7069 fw_ddb_entry);
7070 if (ret == QLA_SUCCESS) {
7071 /* free nt_ddb_idx and do not add to list_nt */
7072 vfree(nt_ddb_idx);
7073 goto continue_next_nt;
7074 }
7075
7076 /* Copy updated isid */
7077 memcpy(&nt_ddb_idx->fw_ddb, fw_ddb_entry,
7078 sizeof(struct dev_db_entry));
7079
7080 list_add_tail(&nt_ddb_idx->list, list_nt);
7081 } else if (is_reset == RESET_ADAPTER) {
7082 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry,
7083 &ddb_idx);
7084 if (ret == QLA_SUCCESS) {
7085 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha,
7086 ddb_idx);
7087 if (ddb_entry != NULL)
7088 qla4xxx_update_sess_disc_idx(ha,
7089 ddb_entry,
7090 fw_ddb_entry);
7091 goto continue_next_nt;
7092 }
7093 }
7094
7095 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, is_reset, idx);
7096 if (ret == QLA_ERROR)
7097 goto exit_nt_list;
7098
7099 continue_next_nt:
7100 if (next_idx == 0)
7101 break;
7102 }
7103
7104 exit_nt_list:
7105 if (fw_ddb_entry)
7106 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
7107 }
7108
qla4xxx_build_new_nt_list(struct scsi_qla_host * ha,struct list_head * list_nt,uint16_t target_id)7109 static void qla4xxx_build_new_nt_list(struct scsi_qla_host *ha,
7110 struct list_head *list_nt,
7111 uint16_t target_id)
7112 {
7113 struct dev_db_entry *fw_ddb_entry;
7114 dma_addr_t fw_ddb_dma;
7115 int max_ddbs;
7116 int fw_idx_size;
7117 int ret;
7118 uint32_t idx = 0, next_idx = 0;
7119 uint32_t state = 0, conn_err = 0;
7120 uint16_t conn_id = 0;
7121 struct qla_ddb_index *nt_ddb_idx;
7122
7123 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
7124 &fw_ddb_dma);
7125 if (fw_ddb_entry == NULL) {
7126 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
7127 goto exit_new_nt_list;
7128 }
7129 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
7130 MAX_DEV_DB_ENTRIES;
7131 fw_idx_size = sizeof(struct qla_ddb_index);
7132
7133 for (idx = 0; idx < max_ddbs; idx = next_idx) {
7134 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
7135 NULL, &next_idx, &state,
7136 &conn_err, NULL, &conn_id);
7137 if (ret == QLA_ERROR)
7138 break;
7139
7140 /* Check if NT, then add it to list */
7141 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0)
7142 goto continue_next_new_nt;
7143
7144 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE))
7145 goto continue_next_new_nt;
7146
7147 DEBUG2(ql4_printk(KERN_INFO, ha,
7148 "Adding DDB to session = 0x%x\n", idx));
7149
7150 nt_ddb_idx = vmalloc(fw_idx_size);
7151 if (!nt_ddb_idx)
7152 break;
7153
7154 nt_ddb_idx->fw_ddb_idx = idx;
7155
7156 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL);
7157 if (ret == QLA_SUCCESS) {
7158 /* free nt_ddb_idx and do not add to list_nt */
7159 vfree(nt_ddb_idx);
7160 goto continue_next_new_nt;
7161 }
7162
7163 if (target_id < max_ddbs)
7164 fw_ddb_entry->ddb_link = cpu_to_le16(target_id);
7165
7166 list_add_tail(&nt_ddb_idx->list, list_nt);
7167
7168 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER,
7169 idx);
7170 if (ret == QLA_ERROR)
7171 goto exit_new_nt_list;
7172
7173 continue_next_new_nt:
7174 if (next_idx == 0)
7175 break;
7176 }
7177
7178 exit_new_nt_list:
7179 if (fw_ddb_entry)
7180 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
7181 }
7182
7183 /**
7184 * qla4xxx_sysfs_ddb_is_non_persistent - check for non-persistence of ddb entry
7185 * @dev: dev associated with the sysfs entry
7186 * @data: pointer to flashnode session object
7187 *
7188 * Returns:
7189 * 1: if flashnode entry is non-persistent
7190 * 0: if flashnode entry is persistent
7191 **/
qla4xxx_sysfs_ddb_is_non_persistent(struct device * dev,void * data)7192 static int qla4xxx_sysfs_ddb_is_non_persistent(struct device *dev, void *data)
7193 {
7194 struct iscsi_bus_flash_session *fnode_sess;
7195
7196 if (!iscsi_flashnode_bus_match(dev, NULL))
7197 return 0;
7198
7199 fnode_sess = iscsi_dev_to_flash_session(dev);
7200
7201 return (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT);
7202 }
7203
7204 /**
7205 * qla4xxx_sysfs_ddb_tgt_create - Create sysfs entry for target
7206 * @ha: pointer to host
7207 * @fw_ddb_entry: flash ddb data
7208 * @idx: target index
7209 * @user: if set then this call is made from userland else from kernel
7210 *
7211 * Returns:
7212 * On sucess: QLA_SUCCESS
7213 * On failure: QLA_ERROR
7214 *
7215 * This create separate sysfs entries for session and connection attributes of
7216 * the given fw ddb entry.
7217 * If this is invoked as a result of a userspace call then the entry is marked
7218 * as nonpersistent using flash_state field.
7219 **/
qla4xxx_sysfs_ddb_tgt_create(struct scsi_qla_host * ha,struct dev_db_entry * fw_ddb_entry,uint16_t * idx,int user)7220 static int qla4xxx_sysfs_ddb_tgt_create(struct scsi_qla_host *ha,
7221 struct dev_db_entry *fw_ddb_entry,
7222 uint16_t *idx, int user)
7223 {
7224 struct iscsi_bus_flash_session *fnode_sess = NULL;
7225 struct iscsi_bus_flash_conn *fnode_conn = NULL;
7226 int rc = QLA_ERROR;
7227
7228 fnode_sess = iscsi_create_flashnode_sess(ha->host, *idx,
7229 &qla4xxx_iscsi_transport, 0);
7230 if (!fnode_sess) {
7231 ql4_printk(KERN_ERR, ha,
7232 "%s: Unable to create session sysfs entry for flashnode %d of host%lu\n",
7233 __func__, *idx, ha->host_no);
7234 goto exit_tgt_create;
7235 }
7236
7237 fnode_conn = iscsi_create_flashnode_conn(ha->host, fnode_sess,
7238 &qla4xxx_iscsi_transport, 0);
7239 if (!fnode_conn) {
7240 ql4_printk(KERN_ERR, ha,
7241 "%s: Unable to create conn sysfs entry for flashnode %d of host%lu\n",
7242 __func__, *idx, ha->host_no);
7243 goto free_sess;
7244 }
7245
7246 if (user) {
7247 fnode_sess->flash_state = DEV_DB_NON_PERSISTENT;
7248 } else {
7249 fnode_sess->flash_state = DEV_DB_PERSISTENT;
7250
7251 if (*idx == ha->pri_ddb_idx || *idx == ha->sec_ddb_idx)
7252 fnode_sess->is_boot_target = 1;
7253 else
7254 fnode_sess->is_boot_target = 0;
7255 }
7256
7257 rc = qla4xxx_copy_from_fwddb_param(fnode_sess, fnode_conn,
7258 fw_ddb_entry);
7259 if (rc)
7260 goto free_sess;
7261
7262 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n",
7263 __func__, fnode_sess->dev.kobj.name);
7264
7265 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n",
7266 __func__, fnode_conn->dev.kobj.name);
7267
7268 return QLA_SUCCESS;
7269
7270 free_sess:
7271 iscsi_destroy_flashnode_sess(fnode_sess);
7272
7273 exit_tgt_create:
7274 return QLA_ERROR;
7275 }
7276
7277 /**
7278 * qla4xxx_sysfs_ddb_add - Add new ddb entry in flash
7279 * @shost: pointer to host
7280 * @buf: type of ddb entry (ipv4/ipv6)
7281 * @len: length of buf
7282 *
7283 * This creates new ddb entry in the flash by finding first free index and
7284 * storing default ddb there. And then create sysfs entry for the new ddb entry.
7285 **/
qla4xxx_sysfs_ddb_add(struct Scsi_Host * shost,const char * buf,int len)7286 static int qla4xxx_sysfs_ddb_add(struct Scsi_Host *shost, const char *buf,
7287 int len)
7288 {
7289 struct scsi_qla_host *ha = to_qla_host(shost);
7290 struct dev_db_entry *fw_ddb_entry = NULL;
7291 dma_addr_t fw_ddb_entry_dma;
7292 struct device *dev;
7293 uint16_t idx = 0;
7294 uint16_t max_ddbs = 0;
7295 uint32_t options = 0;
7296 uint32_t rval = QLA_ERROR;
7297
7298 if (strncasecmp(PORTAL_TYPE_IPV4, buf, 4) &&
7299 strncasecmp(PORTAL_TYPE_IPV6, buf, 4)) {
7300 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Invalid portal type\n",
7301 __func__));
7302 goto exit_ddb_add;
7303 }
7304
7305 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES :
7306 MAX_DEV_DB_ENTRIES;
7307
7308 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7309 &fw_ddb_entry_dma, GFP_KERNEL);
7310 if (!fw_ddb_entry) {
7311 DEBUG2(ql4_printk(KERN_ERR, ha,
7312 "%s: Unable to allocate dma buffer\n",
7313 __func__));
7314 goto exit_ddb_add;
7315 }
7316
7317 dev = iscsi_find_flashnode_sess(ha->host, NULL,
7318 qla4xxx_sysfs_ddb_is_non_persistent);
7319 if (dev) {
7320 ql4_printk(KERN_ERR, ha,
7321 "%s: A non-persistent entry %s found\n",
7322 __func__, dev->kobj.name);
7323 put_device(dev);
7324 goto exit_ddb_add;
7325 }
7326
7327 /* Index 0 and 1 are reserved for boot target entries */
7328 for (idx = 2; idx < max_ddbs; idx++) {
7329 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry,
7330 fw_ddb_entry_dma, idx))
7331 break;
7332 }
7333
7334 if (idx == max_ddbs)
7335 goto exit_ddb_add;
7336
7337 if (!strncasecmp("ipv6", buf, 4))
7338 options |= IPV6_DEFAULT_DDB_ENTRY;
7339
7340 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
7341 if (rval == QLA_ERROR)
7342 goto exit_ddb_add;
7343
7344 rval = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 1);
7345
7346 exit_ddb_add:
7347 if (fw_ddb_entry)
7348 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7349 fw_ddb_entry, fw_ddb_entry_dma);
7350 if (rval == QLA_SUCCESS)
7351 return idx;
7352 else
7353 return -EIO;
7354 }
7355
7356 /**
7357 * qla4xxx_sysfs_ddb_apply - write the target ddb contents to Flash
7358 * @fnode_sess: pointer to session attrs of flash ddb entry
7359 * @fnode_conn: pointer to connection attrs of flash ddb entry
7360 *
7361 * This writes the contents of target ddb buffer to Flash with a valid cookie
7362 * value in order to make the ddb entry persistent.
7363 **/
qla4xxx_sysfs_ddb_apply(struct iscsi_bus_flash_session * fnode_sess,struct iscsi_bus_flash_conn * fnode_conn)7364 static int qla4xxx_sysfs_ddb_apply(struct iscsi_bus_flash_session *fnode_sess,
7365 struct iscsi_bus_flash_conn *fnode_conn)
7366 {
7367 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7368 struct scsi_qla_host *ha = to_qla_host(shost);
7369 uint32_t dev_db_start_offset = FLASH_OFFSET_DB_INFO;
7370 struct dev_db_entry *fw_ddb_entry = NULL;
7371 dma_addr_t fw_ddb_entry_dma;
7372 uint32_t options = 0;
7373 int rval = 0;
7374
7375 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7376 &fw_ddb_entry_dma, GFP_KERNEL);
7377 if (!fw_ddb_entry) {
7378 DEBUG2(ql4_printk(KERN_ERR, ha,
7379 "%s: Unable to allocate dma buffer\n",
7380 __func__));
7381 rval = -ENOMEM;
7382 goto exit_ddb_apply;
7383 }
7384
7385 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7386 options |= IPV6_DEFAULT_DDB_ENTRY;
7387
7388 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
7389 if (rval == QLA_ERROR)
7390 goto exit_ddb_apply;
7391
7392 dev_db_start_offset += (fnode_sess->target_id *
7393 sizeof(*fw_ddb_entry));
7394
7395 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry);
7396 fw_ddb_entry->cookie = DDB_VALID_COOKIE;
7397
7398 rval = qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset,
7399 sizeof(*fw_ddb_entry), FLASH_OPT_RMW_COMMIT);
7400
7401 if (rval == QLA_SUCCESS) {
7402 fnode_sess->flash_state = DEV_DB_PERSISTENT;
7403 ql4_printk(KERN_INFO, ha,
7404 "%s: flash node %u of host %lu written to flash\n",
7405 __func__, fnode_sess->target_id, ha->host_no);
7406 } else {
7407 rval = -EIO;
7408 ql4_printk(KERN_ERR, ha,
7409 "%s: Error while writing flash node %u of host %lu to flash\n",
7410 __func__, fnode_sess->target_id, ha->host_no);
7411 }
7412
7413 exit_ddb_apply:
7414 if (fw_ddb_entry)
7415 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7416 fw_ddb_entry, fw_ddb_entry_dma);
7417 return rval;
7418 }
7419
qla4xxx_sysfs_ddb_conn_open(struct scsi_qla_host * ha,struct dev_db_entry * fw_ddb_entry,uint16_t idx)7420 static ssize_t qla4xxx_sysfs_ddb_conn_open(struct scsi_qla_host *ha,
7421 struct dev_db_entry *fw_ddb_entry,
7422 uint16_t idx)
7423 {
7424 struct dev_db_entry *ddb_entry = NULL;
7425 dma_addr_t ddb_entry_dma;
7426 unsigned long wtime;
7427 uint32_t mbx_sts = 0;
7428 uint32_t state = 0, conn_err = 0;
7429 uint16_t tmo = 0;
7430 int ret = 0;
7431
7432 ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*ddb_entry),
7433 &ddb_entry_dma, GFP_KERNEL);
7434 if (!ddb_entry) {
7435 DEBUG2(ql4_printk(KERN_ERR, ha,
7436 "%s: Unable to allocate dma buffer\n",
7437 __func__));
7438 return QLA_ERROR;
7439 }
7440
7441 memcpy(ddb_entry, fw_ddb_entry, sizeof(*ddb_entry));
7442
7443 ret = qla4xxx_set_ddb_entry(ha, idx, ddb_entry_dma, &mbx_sts);
7444 if (ret != QLA_SUCCESS) {
7445 DEBUG2(ql4_printk(KERN_ERR, ha,
7446 "%s: Unable to set ddb entry for index %d\n",
7447 __func__, idx));
7448 goto exit_ddb_conn_open;
7449 }
7450
7451 qla4xxx_conn_open(ha, idx);
7452
7453 /* To ensure that sendtargets is done, wait for at least 12 secs */
7454 tmo = ((ha->def_timeout > LOGIN_TOV) &&
7455 (ha->def_timeout < LOGIN_TOV * 10) ?
7456 ha->def_timeout : LOGIN_TOV);
7457
7458 DEBUG2(ql4_printk(KERN_INFO, ha,
7459 "Default time to wait for login to ddb %d\n", tmo));
7460
7461 wtime = jiffies + (HZ * tmo);
7462 do {
7463 ret = qla4xxx_get_fwddb_entry(ha, idx, NULL, 0, NULL,
7464 NULL, &state, &conn_err, NULL,
7465 NULL);
7466 if (ret == QLA_ERROR)
7467 continue;
7468
7469 if (state == DDB_DS_NO_CONNECTION_ACTIVE ||
7470 state == DDB_DS_SESSION_FAILED)
7471 break;
7472
7473 schedule_timeout_uninterruptible(HZ / 10);
7474 } while (time_after(wtime, jiffies));
7475
7476 exit_ddb_conn_open:
7477 if (ddb_entry)
7478 dma_free_coherent(&ha->pdev->dev, sizeof(*ddb_entry),
7479 ddb_entry, ddb_entry_dma);
7480 return ret;
7481 }
7482
qla4xxx_ddb_login_st(struct scsi_qla_host * ha,struct dev_db_entry * fw_ddb_entry,uint16_t target_id)7483 static int qla4xxx_ddb_login_st(struct scsi_qla_host *ha,
7484 struct dev_db_entry *fw_ddb_entry,
7485 uint16_t target_id)
7486 {
7487 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
7488 struct list_head list_nt;
7489 uint16_t ddb_index;
7490 int ret = 0;
7491
7492 if (test_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags)) {
7493 ql4_printk(KERN_WARNING, ha,
7494 "%s: A discovery already in progress!\n", __func__);
7495 return QLA_ERROR;
7496 }
7497
7498 INIT_LIST_HEAD(&list_nt);
7499
7500 set_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags);
7501
7502 ret = qla4xxx_get_ddb_index(ha, &ddb_index);
7503 if (ret == QLA_ERROR)
7504 goto exit_login_st_clr_bit;
7505
7506 ret = qla4xxx_sysfs_ddb_conn_open(ha, fw_ddb_entry, ddb_index);
7507 if (ret == QLA_ERROR)
7508 goto exit_login_st;
7509
7510 qla4xxx_build_new_nt_list(ha, &list_nt, target_id);
7511
7512 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, &list_nt, list) {
7513 list_del_init(&ddb_idx->list);
7514 qla4xxx_clear_ddb_entry(ha, ddb_idx->fw_ddb_idx);
7515 vfree(ddb_idx);
7516 }
7517
7518 exit_login_st:
7519 if (qla4xxx_clear_ddb_entry(ha, ddb_index) == QLA_ERROR) {
7520 ql4_printk(KERN_ERR, ha,
7521 "Unable to clear DDB index = 0x%x\n", ddb_index);
7522 }
7523
7524 clear_bit(ddb_index, ha->ddb_idx_map);
7525
7526 exit_login_st_clr_bit:
7527 clear_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags);
7528 return ret;
7529 }
7530
qla4xxx_ddb_login_nt(struct scsi_qla_host * ha,struct dev_db_entry * fw_ddb_entry,uint16_t idx)7531 static int qla4xxx_ddb_login_nt(struct scsi_qla_host *ha,
7532 struct dev_db_entry *fw_ddb_entry,
7533 uint16_t idx)
7534 {
7535 int ret = QLA_ERROR;
7536
7537 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL);
7538 if (ret != QLA_SUCCESS)
7539 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER,
7540 idx);
7541 else
7542 ret = -EPERM;
7543
7544 return ret;
7545 }
7546
7547 /**
7548 * qla4xxx_sysfs_ddb_login - Login to the specified target
7549 * @fnode_sess: pointer to session attrs of flash ddb entry
7550 * @fnode_conn: pointer to connection attrs of flash ddb entry
7551 *
7552 * This logs in to the specified target
7553 **/
qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session * fnode_sess,struct iscsi_bus_flash_conn * fnode_conn)7554 static int qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess,
7555 struct iscsi_bus_flash_conn *fnode_conn)
7556 {
7557 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7558 struct scsi_qla_host *ha = to_qla_host(shost);
7559 struct dev_db_entry *fw_ddb_entry = NULL;
7560 dma_addr_t fw_ddb_entry_dma;
7561 uint32_t options = 0;
7562 int ret = 0;
7563
7564 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT) {
7565 ql4_printk(KERN_ERR, ha,
7566 "%s: Target info is not persistent\n", __func__);
7567 ret = -EIO;
7568 goto exit_ddb_login;
7569 }
7570
7571 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7572 &fw_ddb_entry_dma, GFP_KERNEL);
7573 if (!fw_ddb_entry) {
7574 DEBUG2(ql4_printk(KERN_ERR, ha,
7575 "%s: Unable to allocate dma buffer\n",
7576 __func__));
7577 ret = -ENOMEM;
7578 goto exit_ddb_login;
7579 }
7580
7581 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7582 options |= IPV6_DEFAULT_DDB_ENTRY;
7583
7584 ret = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
7585 if (ret == QLA_ERROR)
7586 goto exit_ddb_login;
7587
7588 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry);
7589 fw_ddb_entry->cookie = DDB_VALID_COOKIE;
7590
7591 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0)
7592 ret = qla4xxx_ddb_login_st(ha, fw_ddb_entry,
7593 fnode_sess->target_id);
7594 else
7595 ret = qla4xxx_ddb_login_nt(ha, fw_ddb_entry,
7596 fnode_sess->target_id);
7597
7598 if (ret > 0)
7599 ret = -EIO;
7600
7601 exit_ddb_login:
7602 if (fw_ddb_entry)
7603 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7604 fw_ddb_entry, fw_ddb_entry_dma);
7605 return ret;
7606 }
7607
7608 /**
7609 * qla4xxx_sysfs_ddb_logout_sid - Logout session for the specified target
7610 * @cls_sess: pointer to session to be logged out
7611 *
7612 * This performs session log out from the specified target
7613 **/
qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session * cls_sess)7614 static int qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess)
7615 {
7616 struct iscsi_session *sess;
7617 struct ddb_entry *ddb_entry = NULL;
7618 struct scsi_qla_host *ha;
7619 struct dev_db_entry *fw_ddb_entry = NULL;
7620 dma_addr_t fw_ddb_entry_dma;
7621 unsigned long flags;
7622 unsigned long wtime;
7623 uint32_t ddb_state;
7624 int options;
7625 int ret = 0;
7626
7627 sess = cls_sess->dd_data;
7628 ddb_entry = sess->dd_data;
7629 ha = ddb_entry->ha;
7630
7631 if (ddb_entry->ddb_type != FLASH_DDB) {
7632 ql4_printk(KERN_ERR, ha, "%s: Not a flash node session\n",
7633 __func__);
7634 ret = -ENXIO;
7635 goto exit_ddb_logout;
7636 }
7637
7638 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) {
7639 ql4_printk(KERN_ERR, ha,
7640 "%s: Logout from boot target entry is not permitted.\n",
7641 __func__);
7642 ret = -EPERM;
7643 goto exit_ddb_logout;
7644 }
7645
7646 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7647 &fw_ddb_entry_dma, GFP_KERNEL);
7648 if (!fw_ddb_entry) {
7649 ql4_printk(KERN_ERR, ha,
7650 "%s: Unable to allocate dma buffer\n", __func__);
7651 ret = -ENOMEM;
7652 goto exit_ddb_logout;
7653 }
7654
7655 if (test_and_set_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags))
7656 goto ddb_logout_init;
7657
7658 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
7659 fw_ddb_entry, fw_ddb_entry_dma,
7660 NULL, NULL, &ddb_state, NULL,
7661 NULL, NULL);
7662 if (ret == QLA_ERROR)
7663 goto ddb_logout_init;
7664
7665 if (ddb_state == DDB_DS_SESSION_ACTIVE)
7666 goto ddb_logout_init;
7667
7668 /* wait until next relogin is triggered using DF_RELOGIN and
7669 * clear DF_RELOGIN to avoid invocation of further relogin
7670 */
7671 wtime = jiffies + (HZ * RELOGIN_TOV);
7672 do {
7673 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags))
7674 goto ddb_logout_init;
7675
7676 schedule_timeout_uninterruptible(HZ);
7677 } while ((time_after(wtime, jiffies)));
7678
7679 ddb_logout_init:
7680 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY);
7681 atomic_set(&ddb_entry->relogin_timer, 0);
7682
7683 options = LOGOUT_OPTION_CLOSE_SESSION;
7684 qla4xxx_session_logout_ddb(ha, ddb_entry, options);
7685
7686 memset(fw_ddb_entry, 0, sizeof(*fw_ddb_entry));
7687 wtime = jiffies + (HZ * LOGOUT_TOV);
7688 do {
7689 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
7690 fw_ddb_entry, fw_ddb_entry_dma,
7691 NULL, NULL, &ddb_state, NULL,
7692 NULL, NULL);
7693 if (ret == QLA_ERROR)
7694 goto ddb_logout_clr_sess;
7695
7696 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) ||
7697 (ddb_state == DDB_DS_SESSION_FAILED))
7698 goto ddb_logout_clr_sess;
7699
7700 schedule_timeout_uninterruptible(HZ);
7701 } while ((time_after(wtime, jiffies)));
7702
7703 ddb_logout_clr_sess:
7704 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
7705 /*
7706 * we have decremented the reference count of the driver
7707 * when we setup the session to have the driver unload
7708 * to be seamless without actually destroying the
7709 * session
7710 **/
7711 try_module_get(qla4xxx_iscsi_transport.owner);
7712 iscsi_destroy_endpoint(ddb_entry->conn->ep);
7713
7714 spin_lock_irqsave(&ha->hardware_lock, flags);
7715 qla4xxx_free_ddb(ha, ddb_entry);
7716 clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map);
7717 spin_unlock_irqrestore(&ha->hardware_lock, flags);
7718
7719 iscsi_session_teardown(ddb_entry->sess);
7720
7721 clear_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags);
7722 ret = QLA_SUCCESS;
7723
7724 exit_ddb_logout:
7725 if (fw_ddb_entry)
7726 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7727 fw_ddb_entry, fw_ddb_entry_dma);
7728 return ret;
7729 }
7730
7731 /**
7732 * qla4xxx_sysfs_ddb_logout - Logout from the specified target
7733 * @fnode_sess: pointer to session attrs of flash ddb entry
7734 * @fnode_conn: pointer to connection attrs of flash ddb entry
7735 *
7736 * This performs log out from the specified target
7737 **/
qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session * fnode_sess,struct iscsi_bus_flash_conn * fnode_conn)7738 static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess,
7739 struct iscsi_bus_flash_conn *fnode_conn)
7740 {
7741 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7742 struct scsi_qla_host *ha = to_qla_host(shost);
7743 struct ql4_tuple_ddb *flash_tddb = NULL;
7744 struct ql4_tuple_ddb *tmp_tddb = NULL;
7745 struct dev_db_entry *fw_ddb_entry = NULL;
7746 struct ddb_entry *ddb_entry = NULL;
7747 dma_addr_t fw_ddb_dma;
7748 uint32_t next_idx = 0;
7749 uint32_t state = 0, conn_err = 0;
7750 uint16_t conn_id = 0;
7751 int idx, index;
7752 int status, ret = 0;
7753
7754 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
7755 &fw_ddb_dma);
7756 if (fw_ddb_entry == NULL) {
7757 ql4_printk(KERN_ERR, ha, "%s:Out of memory\n", __func__);
7758 ret = -ENOMEM;
7759 goto exit_ddb_logout;
7760 }
7761
7762 flash_tddb = vzalloc(sizeof(*flash_tddb));
7763 if (!flash_tddb) {
7764 ql4_printk(KERN_WARNING, ha,
7765 "%s:Memory Allocation failed.\n", __func__);
7766 ret = -ENOMEM;
7767 goto exit_ddb_logout;
7768 }
7769
7770 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
7771 if (!tmp_tddb) {
7772 ql4_printk(KERN_WARNING, ha,
7773 "%s:Memory Allocation failed.\n", __func__);
7774 ret = -ENOMEM;
7775 goto exit_ddb_logout;
7776 }
7777
7778 if (!fnode_sess->targetname) {
7779 ql4_printk(KERN_ERR, ha,
7780 "%s:Cannot logout from SendTarget entry\n",
7781 __func__);
7782 ret = -EPERM;
7783 goto exit_ddb_logout;
7784 }
7785
7786 if (fnode_sess->is_boot_target) {
7787 ql4_printk(KERN_ERR, ha,
7788 "%s: Logout from boot target entry is not permitted.\n",
7789 __func__);
7790 ret = -EPERM;
7791 goto exit_ddb_logout;
7792 }
7793
7794 strscpy(flash_tddb->iscsi_name, fnode_sess->targetname,
7795 ISCSI_NAME_SIZE);
7796
7797 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7798 sprintf(flash_tddb->ip_addr, "%pI6", fnode_conn->ipaddress);
7799 else
7800 sprintf(flash_tddb->ip_addr, "%pI4", fnode_conn->ipaddress);
7801
7802 flash_tddb->tpgt = fnode_sess->tpgt;
7803 flash_tddb->port = fnode_conn->port;
7804
7805 COPY_ISID(flash_tddb->isid, fnode_sess->isid);
7806
7807 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
7808 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
7809 if (ddb_entry == NULL)
7810 continue;
7811
7812 if (ddb_entry->ddb_type != FLASH_DDB)
7813 continue;
7814
7815 index = ddb_entry->sess->target_id;
7816 status = qla4xxx_get_fwddb_entry(ha, index, fw_ddb_entry,
7817 fw_ddb_dma, NULL, &next_idx,
7818 &state, &conn_err, NULL,
7819 &conn_id);
7820 if (status == QLA_ERROR) {
7821 ret = -ENOMEM;
7822 break;
7823 }
7824
7825 qla4xxx_convert_param_ddb(fw_ddb_entry, tmp_tddb, NULL);
7826
7827 status = qla4xxx_compare_tuple_ddb(ha, flash_tddb, tmp_tddb,
7828 true);
7829 if (status == QLA_SUCCESS) {
7830 ret = qla4xxx_sysfs_ddb_logout_sid(ddb_entry->sess);
7831 break;
7832 }
7833 }
7834
7835 if (idx == MAX_DDB_ENTRIES)
7836 ret = -ESRCH;
7837
7838 exit_ddb_logout:
7839 vfree(flash_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
qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session * fnode_sess,int param,char * buf)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
qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session * fnode_sess,struct iscsi_bus_flash_conn * fnode_conn,void * data,int len)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 if (nla_len(attr) < sizeof(*fnode_param)) {
8118 rc = -EINVAL;
8119 goto exit_set_param;
8120 }
8121
8122 fnode_param = nla_data(attr);
8123
8124 switch (fnode_param->param) {
8125 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6:
8126 fnode_conn->is_fw_assigned_ipv6 = fnode_param->value[0];
8127 break;
8128 case ISCSI_FLASHNODE_PORTAL_TYPE:
8129 memcpy(fnode_sess->portal_type, fnode_param->value,
8130 strlen(fnode_sess->portal_type));
8131 break;
8132 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE:
8133 fnode_sess->auto_snd_tgt_disable =
8134 fnode_param->value[0];
8135 break;
8136 case ISCSI_FLASHNODE_DISCOVERY_SESS:
8137 fnode_sess->discovery_sess = fnode_param->value[0];
8138 break;
8139 case ISCSI_FLASHNODE_ENTRY_EN:
8140 fnode_sess->entry_state = fnode_param->value[0];
8141 break;
8142 case ISCSI_FLASHNODE_HDR_DGST_EN:
8143 fnode_conn->hdrdgst_en = fnode_param->value[0];
8144 break;
8145 case ISCSI_FLASHNODE_DATA_DGST_EN:
8146 fnode_conn->datadgst_en = fnode_param->value[0];
8147 break;
8148 case ISCSI_FLASHNODE_IMM_DATA_EN:
8149 fnode_sess->imm_data_en = fnode_param->value[0];
8150 break;
8151 case ISCSI_FLASHNODE_INITIAL_R2T_EN:
8152 fnode_sess->initial_r2t_en = fnode_param->value[0];
8153 break;
8154 case ISCSI_FLASHNODE_DATASEQ_INORDER:
8155 fnode_sess->dataseq_inorder_en = fnode_param->value[0];
8156 break;
8157 case ISCSI_FLASHNODE_PDU_INORDER:
8158 fnode_sess->pdu_inorder_en = fnode_param->value[0];
8159 break;
8160 case ISCSI_FLASHNODE_CHAP_AUTH_EN:
8161 fnode_sess->chap_auth_en = fnode_param->value[0];
8162 /* Invalidate chap index if chap auth is disabled */
8163 if (!fnode_sess->chap_auth_en)
8164 fnode_sess->chap_out_idx = INVALID_ENTRY;
8165
8166 break;
8167 case ISCSI_FLASHNODE_SNACK_REQ_EN:
8168 fnode_conn->snack_req_en = fnode_param->value[0];
8169 break;
8170 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN:
8171 fnode_sess->discovery_logout_en = fnode_param->value[0];
8172 break;
8173 case ISCSI_FLASHNODE_BIDI_CHAP_EN:
8174 fnode_sess->bidi_chap_en = fnode_param->value[0];
8175 break;
8176 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL:
8177 fnode_sess->discovery_auth_optional =
8178 fnode_param->value[0];
8179 break;
8180 case ISCSI_FLASHNODE_ERL:
8181 fnode_sess->erl = fnode_param->value[0];
8182 break;
8183 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT:
8184 fnode_conn->tcp_timestamp_stat = fnode_param->value[0];
8185 break;
8186 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE:
8187 fnode_conn->tcp_nagle_disable = fnode_param->value[0];
8188 break;
8189 case ISCSI_FLASHNODE_TCP_WSF_DISABLE:
8190 fnode_conn->tcp_wsf_disable = fnode_param->value[0];
8191 break;
8192 case ISCSI_FLASHNODE_TCP_TIMER_SCALE:
8193 fnode_conn->tcp_timer_scale = fnode_param->value[0];
8194 break;
8195 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN:
8196 fnode_conn->tcp_timestamp_en = fnode_param->value[0];
8197 break;
8198 case ISCSI_FLASHNODE_IP_FRAG_DISABLE:
8199 fnode_conn->fragment_disable = fnode_param->value[0];
8200 break;
8201 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH:
8202 fnode_conn->max_recv_dlength =
8203 *(unsigned *)fnode_param->value;
8204 break;
8205 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH:
8206 fnode_conn->max_xmit_dlength =
8207 *(unsigned *)fnode_param->value;
8208 break;
8209 case ISCSI_FLASHNODE_FIRST_BURST:
8210 fnode_sess->first_burst =
8211 *(unsigned *)fnode_param->value;
8212 break;
8213 case ISCSI_FLASHNODE_DEF_TIME2WAIT:
8214 fnode_sess->time2wait = *(uint16_t *)fnode_param->value;
8215 break;
8216 case ISCSI_FLASHNODE_DEF_TIME2RETAIN:
8217 fnode_sess->time2retain =
8218 *(uint16_t *)fnode_param->value;
8219 break;
8220 case ISCSI_FLASHNODE_MAX_R2T:
8221 fnode_sess->max_r2t =
8222 *(uint16_t *)fnode_param->value;
8223 break;
8224 case ISCSI_FLASHNODE_KEEPALIVE_TMO:
8225 fnode_conn->keepalive_timeout =
8226 *(uint16_t *)fnode_param->value;
8227 break;
8228 case ISCSI_FLASHNODE_ISID:
8229 memcpy(fnode_sess->isid, fnode_param->value,
8230 sizeof(fnode_sess->isid));
8231 break;
8232 case ISCSI_FLASHNODE_TSID:
8233 fnode_sess->tsid = *(uint16_t *)fnode_param->value;
8234 break;
8235 case ISCSI_FLASHNODE_PORT:
8236 fnode_conn->port = *(uint16_t *)fnode_param->value;
8237 break;
8238 case ISCSI_FLASHNODE_MAX_BURST:
8239 fnode_sess->max_burst = *(unsigned *)fnode_param->value;
8240 break;
8241 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO:
8242 fnode_sess->default_taskmgmt_timeout =
8243 *(uint16_t *)fnode_param->value;
8244 break;
8245 case ISCSI_FLASHNODE_IPADDR:
8246 memcpy(fnode_conn->ipaddress, fnode_param->value,
8247 IPv6_ADDR_LEN);
8248 break;
8249 case ISCSI_FLASHNODE_ALIAS:
8250 rc = iscsi_switch_str_param(&fnode_sess->targetalias,
8251 (char *)fnode_param->value);
8252 break;
8253 case ISCSI_FLASHNODE_REDIRECT_IPADDR:
8254 memcpy(fnode_conn->redirect_ipaddr, fnode_param->value,
8255 IPv6_ADDR_LEN);
8256 break;
8257 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE:
8258 fnode_conn->max_segment_size =
8259 *(unsigned *)fnode_param->value;
8260 break;
8261 case ISCSI_FLASHNODE_LOCAL_PORT:
8262 fnode_conn->local_port =
8263 *(uint16_t *)fnode_param->value;
8264 break;
8265 case ISCSI_FLASHNODE_IPV4_TOS:
8266 fnode_conn->ipv4_tos = fnode_param->value[0];
8267 break;
8268 case ISCSI_FLASHNODE_IPV6_TC:
8269 fnode_conn->ipv6_traffic_class = fnode_param->value[0];
8270 break;
8271 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL:
8272 fnode_conn->ipv6_flow_label = fnode_param->value[0];
8273 break;
8274 case ISCSI_FLASHNODE_NAME:
8275 rc = iscsi_switch_str_param(&fnode_sess->targetname,
8276 (char *)fnode_param->value);
8277 break;
8278 case ISCSI_FLASHNODE_TPGT:
8279 fnode_sess->tpgt = *(uint16_t *)fnode_param->value;
8280 break;
8281 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6:
8282 memcpy(fnode_conn->link_local_ipv6_addr,
8283 fnode_param->value, IPv6_ADDR_LEN);
8284 break;
8285 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX:
8286 fnode_sess->discovery_parent_idx =
8287 *(uint16_t *)fnode_param->value;
8288 break;
8289 case ISCSI_FLASHNODE_TCP_XMIT_WSF:
8290 fnode_conn->tcp_xmit_wsf =
8291 *(uint8_t *)fnode_param->value;
8292 break;
8293 case ISCSI_FLASHNODE_TCP_RECV_WSF:
8294 fnode_conn->tcp_recv_wsf =
8295 *(uint8_t *)fnode_param->value;
8296 break;
8297 case ISCSI_FLASHNODE_STATSN:
8298 fnode_conn->statsn = *(uint32_t *)fnode_param->value;
8299 break;
8300 case ISCSI_FLASHNODE_EXP_STATSN:
8301 fnode_conn->exp_statsn =
8302 *(uint32_t *)fnode_param->value;
8303 break;
8304 case ISCSI_FLASHNODE_CHAP_OUT_IDX:
8305 chap_out_idx = *(uint16_t *)fnode_param->value;
8306 if (!qla4xxx_get_uni_chap_at_index(ha,
8307 chap_tbl.name,
8308 chap_tbl.secret,
8309 chap_out_idx)) {
8310 fnode_sess->chap_out_idx = chap_out_idx;
8311 /* Enable chap auth if chap index is valid */
8312 fnode_sess->chap_auth_en = QL4_PARAM_ENABLE;
8313 }
8314 break;
8315 default:
8316 ql4_printk(KERN_ERR, ha,
8317 "%s: No such sysfs attribute\n", __func__);
8318 rc = -ENOSYS;
8319 goto exit_set_param;
8320 }
8321 }
8322
8323 rc = qla4xxx_sysfs_ddb_apply(fnode_sess, fnode_conn);
8324
8325 exit_set_param:
8326 return rc;
8327 }
8328
8329 /**
8330 * qla4xxx_sysfs_ddb_delete - Delete firmware DDB entry
8331 * @fnode_sess: pointer to session attrs of flash ddb entry
8332 *
8333 * This invalidates the flash ddb entry at the given index
8334 **/
qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session * fnode_sess)8335 static int qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess)
8336 {
8337 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
8338 struct scsi_qla_host *ha = to_qla_host(shost);
8339 uint32_t dev_db_start_offset;
8340 uint32_t dev_db_end_offset;
8341 struct dev_db_entry *fw_ddb_entry = NULL;
8342 dma_addr_t fw_ddb_entry_dma;
8343 uint16_t *ddb_cookie = NULL;
8344 size_t ddb_size = 0;
8345 void *pddb = NULL;
8346 int target_id;
8347 int rc = 0;
8348
8349 if (fnode_sess->is_boot_target) {
8350 rc = -EPERM;
8351 DEBUG2(ql4_printk(KERN_ERR, ha,
8352 "%s: Deletion of boot target entry is not permitted.\n",
8353 __func__));
8354 goto exit_ddb_del;
8355 }
8356
8357 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT)
8358 goto sysfs_ddb_del;
8359
8360 if (is_qla40XX(ha)) {
8361 dev_db_start_offset = FLASH_OFFSET_DB_INFO;
8362 dev_db_end_offset = FLASH_OFFSET_DB_END;
8363 dev_db_start_offset += (fnode_sess->target_id *
8364 sizeof(*fw_ddb_entry));
8365 ddb_size = sizeof(*fw_ddb_entry);
8366 } else {
8367 dev_db_start_offset = FLASH_RAW_ACCESS_ADDR +
8368 (ha->hw.flt_region_ddb << 2);
8369 /* flt_ddb_size is DDB table size for both ports
8370 * so divide it by 2 to calculate the offset for second port
8371 */
8372 if (ha->port_num == 1)
8373 dev_db_start_offset += (ha->hw.flt_ddb_size / 2);
8374
8375 dev_db_end_offset = dev_db_start_offset +
8376 (ha->hw.flt_ddb_size / 2);
8377
8378 dev_db_start_offset += (fnode_sess->target_id *
8379 sizeof(*fw_ddb_entry));
8380 dev_db_start_offset += offsetof(struct dev_db_entry, cookie);
8381
8382 ddb_size = sizeof(*ddb_cookie);
8383 }
8384
8385 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: start offset=%u, end offset=%u\n",
8386 __func__, dev_db_start_offset, dev_db_end_offset));
8387
8388 if (dev_db_start_offset > dev_db_end_offset) {
8389 rc = -EIO;
8390 DEBUG2(ql4_printk(KERN_ERR, ha, "%s:Invalid DDB index %u\n",
8391 __func__, fnode_sess->target_id));
8392 goto exit_ddb_del;
8393 }
8394
8395 pddb = dma_alloc_coherent(&ha->pdev->dev, ddb_size,
8396 &fw_ddb_entry_dma, GFP_KERNEL);
8397 if (!pddb) {
8398 rc = -ENOMEM;
8399 DEBUG2(ql4_printk(KERN_ERR, ha,
8400 "%s: Unable to allocate dma buffer\n",
8401 __func__));
8402 goto exit_ddb_del;
8403 }
8404
8405 if (is_qla40XX(ha)) {
8406 fw_ddb_entry = pddb;
8407 memset(fw_ddb_entry, 0, ddb_size);
8408 ddb_cookie = &fw_ddb_entry->cookie;
8409 } else {
8410 ddb_cookie = pddb;
8411 }
8412
8413 /* invalidate the cookie */
8414 *ddb_cookie = 0xFFEE;
8415 qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset,
8416 ddb_size, FLASH_OPT_RMW_COMMIT);
8417
8418 sysfs_ddb_del:
8419 target_id = fnode_sess->target_id;
8420 iscsi_destroy_flashnode_sess(fnode_sess);
8421 ql4_printk(KERN_INFO, ha,
8422 "%s: session and conn entries for flashnode %u of host %lu deleted\n",
8423 __func__, target_id, ha->host_no);
8424 exit_ddb_del:
8425 if (pddb)
8426 dma_free_coherent(&ha->pdev->dev, ddb_size, pddb,
8427 fw_ddb_entry_dma);
8428 return rc;
8429 }
8430
8431 /**
8432 * qla4xxx_sysfs_ddb_export - Create sysfs entries for firmware DDBs
8433 * @ha: pointer to adapter structure
8434 *
8435 * Export the firmware DDB for all send targets and normal targets to sysfs.
8436 **/
qla4xxx_sysfs_ddb_export(struct scsi_qla_host * ha)8437 int qla4xxx_sysfs_ddb_export(struct scsi_qla_host *ha)
8438 {
8439 struct dev_db_entry *fw_ddb_entry = NULL;
8440 dma_addr_t fw_ddb_entry_dma;
8441 uint16_t max_ddbs;
8442 uint16_t idx = 0;
8443 int ret = QLA_SUCCESS;
8444
8445 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev,
8446 sizeof(*fw_ddb_entry),
8447 &fw_ddb_entry_dma, GFP_KERNEL);
8448 if (!fw_ddb_entry) {
8449 DEBUG2(ql4_printk(KERN_ERR, ha,
8450 "%s: Unable to allocate dma buffer\n",
8451 __func__));
8452 return -ENOMEM;
8453 }
8454
8455 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES :
8456 MAX_DEV_DB_ENTRIES;
8457
8458 for (idx = 0; idx < max_ddbs; idx++) {
8459 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry, fw_ddb_entry_dma,
8460 idx))
8461 continue;
8462
8463 ret = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 0);
8464 if (ret) {
8465 ret = -EIO;
8466 break;
8467 }
8468 }
8469
8470 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry,
8471 fw_ddb_entry_dma);
8472
8473 return ret;
8474 }
8475
qla4xxx_sysfs_ddb_remove(struct scsi_qla_host * ha)8476 static void qla4xxx_sysfs_ddb_remove(struct scsi_qla_host *ha)
8477 {
8478 iscsi_destroy_all_flashnode(ha->host);
8479 }
8480
8481 /**
8482 * qla4xxx_build_ddb_list - Build ddb list and setup sessions
8483 * @ha: pointer to adapter structure
8484 * @is_reset: Is this init path or reset path
8485 *
8486 * Create a list of sendtargets (st) from firmware DDBs, issue send targets
8487 * using connection open, then create the list of normal targets (nt)
8488 * from firmware DDBs. Based on the list of nt setup session and connection
8489 * objects.
8490 **/
qla4xxx_build_ddb_list(struct scsi_qla_host * ha,int is_reset)8491 void qla4xxx_build_ddb_list(struct scsi_qla_host *ha, int is_reset)
8492 {
8493 uint16_t tmo = 0;
8494 struct list_head list_st, list_nt;
8495 struct qla_ddb_index *st_ddb_idx, *st_ddb_idx_tmp;
8496 unsigned long wtime;
8497
8498 if (!test_bit(AF_LINK_UP, &ha->flags)) {
8499 set_bit(AF_BUILD_DDB_LIST, &ha->flags);
8500 ha->is_reset = is_reset;
8501 return;
8502 }
8503
8504 INIT_LIST_HEAD(&list_st);
8505 INIT_LIST_HEAD(&list_nt);
8506
8507 qla4xxx_build_st_list(ha, &list_st);
8508
8509 /* Before issuing conn open mbox, ensure all IPs states are configured
8510 * Note, conn open fails if IPs are not configured
8511 */
8512 qla4xxx_wait_for_ip_configuration(ha);
8513
8514 /* Go thru the STs and fire the sendtargets by issuing conn open mbx */
8515 list_for_each_entry_safe(st_ddb_idx, st_ddb_idx_tmp, &list_st, list) {
8516 qla4xxx_conn_open(ha, st_ddb_idx->fw_ddb_idx);
8517 }
8518
8519 /* Wait to ensure all sendtargets are done for min 12 sec wait */
8520 tmo = ((ha->def_timeout > LOGIN_TOV) &&
8521 (ha->def_timeout < LOGIN_TOV * 10) ?
8522 ha->def_timeout : LOGIN_TOV);
8523
8524 DEBUG2(ql4_printk(KERN_INFO, ha,
8525 "Default time to wait for build ddb %d\n", tmo));
8526
8527 wtime = jiffies + (HZ * tmo);
8528 do {
8529 if (list_empty(&list_st))
8530 break;
8531
8532 qla4xxx_remove_failed_ddb(ha, &list_st);
8533 schedule_timeout_uninterruptible(HZ / 10);
8534 } while (time_after(wtime, jiffies));
8535
8536
8537 qla4xxx_build_nt_list(ha, &list_nt, &list_st, is_reset);
8538
8539 qla4xxx_free_ddb_list(&list_st);
8540 qla4xxx_free_ddb_list(&list_nt);
8541
8542 qla4xxx_free_ddb_index(ha);
8543 }
8544
8545 /**
8546 * qla4xxx_wait_login_resp_boot_tgt - Wait for iSCSI boot target login
8547 * response.
8548 * @ha: pointer to adapter structure
8549 *
8550 * When the boot entry is normal iSCSI target then DF_BOOT_TGT flag will be
8551 * set in DDB and we will wait for login response of boot targets during
8552 * probe.
8553 **/
qla4xxx_wait_login_resp_boot_tgt(struct scsi_qla_host * ha)8554 static void qla4xxx_wait_login_resp_boot_tgt(struct scsi_qla_host *ha)
8555 {
8556 struct ddb_entry *ddb_entry;
8557 struct dev_db_entry *fw_ddb_entry = NULL;
8558 dma_addr_t fw_ddb_entry_dma;
8559 unsigned long wtime;
8560 uint32_t ddb_state;
8561 int max_ddbs, idx, ret;
8562
8563 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
8564 MAX_DEV_DB_ENTRIES;
8565
8566 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8567 &fw_ddb_entry_dma, GFP_KERNEL);
8568 if (!fw_ddb_entry) {
8569 ql4_printk(KERN_ERR, ha,
8570 "%s: Unable to allocate dma buffer\n", __func__);
8571 goto exit_login_resp;
8572 }
8573
8574 wtime = jiffies + (HZ * BOOT_LOGIN_RESP_TOV);
8575
8576 for (idx = 0; idx < max_ddbs; idx++) {
8577 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
8578 if (ddb_entry == NULL)
8579 continue;
8580
8581 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) {
8582 DEBUG2(ql4_printk(KERN_INFO, ha,
8583 "%s: DDB index [%d]\n", __func__,
8584 ddb_entry->fw_ddb_index));
8585 do {
8586 ret = qla4xxx_get_fwddb_entry(ha,
8587 ddb_entry->fw_ddb_index,
8588 fw_ddb_entry, fw_ddb_entry_dma,
8589 NULL, NULL, &ddb_state, NULL,
8590 NULL, NULL);
8591 if (ret == QLA_ERROR)
8592 goto exit_login_resp;
8593
8594 if ((ddb_state == DDB_DS_SESSION_ACTIVE) ||
8595 (ddb_state == DDB_DS_SESSION_FAILED))
8596 break;
8597
8598 schedule_timeout_uninterruptible(HZ);
8599
8600 } while ((time_after(wtime, jiffies)));
8601
8602 if (!time_after(wtime, jiffies)) {
8603 DEBUG2(ql4_printk(KERN_INFO, ha,
8604 "%s: Login response wait timer expired\n",
8605 __func__));
8606 goto exit_login_resp;
8607 }
8608 }
8609 }
8610
8611 exit_login_resp:
8612 if (fw_ddb_entry)
8613 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8614 fw_ddb_entry, fw_ddb_entry_dma);
8615 }
8616
8617 /**
8618 * qla4xxx_probe_adapter - callback function to probe HBA
8619 * @pdev: pointer to pci_dev structure
8620 * @ent: pointer to pci_device entry
8621 *
8622 * This routine will probe for Qlogic 4xxx iSCSI host adapters.
8623 * It returns zero if successful. It also initializes all data necessary for
8624 * the driver.
8625 **/
qla4xxx_probe_adapter(struct pci_dev * pdev,const struct pci_device_id * ent)8626 static int qla4xxx_probe_adapter(struct pci_dev *pdev,
8627 const struct pci_device_id *ent)
8628 {
8629 int ret = -ENODEV, status;
8630 struct Scsi_Host *host;
8631 struct scsi_qla_host *ha;
8632 uint8_t init_retry_count = 0;
8633 char buf[34];
8634 struct qla4_8xxx_legacy_intr_set *nx_legacy_intr;
8635 uint32_t dev_state;
8636
8637 if (pci_enable_device(pdev))
8638 return -1;
8639
8640 host = iscsi_host_alloc(&qla4xxx_driver_template, sizeof(*ha), 0);
8641 if (host == NULL) {
8642 printk(KERN_WARNING
8643 "qla4xxx: Couldn't allocate host from scsi layer!\n");
8644 goto probe_disable_device;
8645 }
8646
8647 /* Clear our data area */
8648 ha = to_qla_host(host);
8649 memset(ha, 0, sizeof(*ha));
8650
8651 /* Save the information from PCI BIOS. */
8652 ha->pdev = pdev;
8653 ha->host = host;
8654 ha->host_no = host->host_no;
8655 ha->func_num = PCI_FUNC(ha->pdev->devfn);
8656
8657 /* Setup Runtime configurable options */
8658 if (is_qla8022(ha)) {
8659 ha->isp_ops = &qla4_82xx_isp_ops;
8660 ha->reg_tbl = (uint32_t *) qla4_82xx_reg_tbl;
8661 ha->qdr_sn_window = -1;
8662 ha->ddr_mn_window = -1;
8663 ha->curr_window = 255;
8664 nx_legacy_intr = &legacy_intr[ha->func_num];
8665 ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit;
8666 ha->nx_legacy_intr.tgt_status_reg =
8667 nx_legacy_intr->tgt_status_reg;
8668 ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg;
8669 ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg;
8670 } else if (is_qla8032(ha) || is_qla8042(ha)) {
8671 ha->isp_ops = &qla4_83xx_isp_ops;
8672 ha->reg_tbl = (uint32_t *)qla4_83xx_reg_tbl;
8673 } else {
8674 ha->isp_ops = &qla4xxx_isp_ops;
8675 }
8676
8677 if (is_qla80XX(ha)) {
8678 rwlock_init(&ha->hw_lock);
8679 ha->pf_bit = ha->func_num << 16;
8680 /* Set EEH reset type to fundamental if required by hba */
8681 pdev->needs_freset = 1;
8682 }
8683
8684 /* Configure PCI I/O space. */
8685 ret = ha->isp_ops->iospace_config(ha);
8686 if (ret)
8687 goto probe_failed_ioconfig;
8688
8689 ql4_printk(KERN_INFO, ha, "Found an ISP%04x, irq %d, iobase 0x%p\n",
8690 pdev->device, pdev->irq, ha->reg);
8691
8692 qla4xxx_config_dma_addressing(ha);
8693
8694 /* Initialize lists and spinlocks. */
8695 INIT_LIST_HEAD(&ha->free_srb_q);
8696
8697 mutex_init(&ha->mbox_sem);
8698 mutex_init(&ha->chap_sem);
8699 init_completion(&ha->mbx_intr_comp);
8700 init_completion(&ha->disable_acb_comp);
8701 init_completion(&ha->idc_comp);
8702 init_completion(&ha->link_up_comp);
8703
8704 spin_lock_init(&ha->hardware_lock);
8705 spin_lock_init(&ha->work_lock);
8706
8707 /* Initialize work list */
8708 INIT_LIST_HEAD(&ha->work_list);
8709
8710 /* Allocate dma buffers */
8711 if (qla4xxx_mem_alloc(ha)) {
8712 ql4_printk(KERN_WARNING, ha,
8713 "[ERROR] Failed to allocate memory for adapter\n");
8714
8715 ret = -ENOMEM;
8716 goto probe_failed;
8717 }
8718
8719 host->cmd_per_lun = 3;
8720 host->max_channel = 0;
8721 host->max_lun = MAX_LUNS - 1;
8722 host->max_id = MAX_TARGETS;
8723 host->max_cmd_len = IOCB_MAX_CDB_LEN;
8724 host->can_queue = MAX_SRBS ;
8725 host->transportt = qla4xxx_scsi_transport;
8726
8727 pci_set_drvdata(pdev, ha);
8728
8729 ret = scsi_add_host(host, &pdev->dev);
8730 if (ret)
8731 goto probe_failed;
8732
8733 if (is_qla80XX(ha))
8734 qla4_8xxx_get_flash_info(ha);
8735
8736 if (is_qla8032(ha) || is_qla8042(ha)) {
8737 qla4_83xx_read_reset_template(ha);
8738 /*
8739 * NOTE: If ql4dontresethba==1, set IDC_CTRL DONTRESET_BIT0.
8740 * If DONRESET_BIT0 is set, drivers should not set dev_state
8741 * to NEED_RESET. But if NEED_RESET is set, drivers should
8742 * should honor the reset.
8743 */
8744 if (ql4xdontresethba == 1)
8745 qla4_83xx_set_idc_dontreset(ha);
8746 }
8747
8748 /*
8749 * Initialize the Host adapter request/response queues and
8750 * firmware
8751 * NOTE: interrupts enabled upon successful completion
8752 */
8753 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER);
8754
8755 /* Dont retry adapter initialization if IRQ allocation failed */
8756 if (is_qla80XX(ha) && (status == QLA_ERROR))
8757 goto skip_retry_init;
8758
8759 while ((!test_bit(AF_ONLINE, &ha->flags)) &&
8760 init_retry_count++ < MAX_INIT_RETRIES) {
8761
8762 if (is_qla80XX(ha)) {
8763 ha->isp_ops->idc_lock(ha);
8764 dev_state = qla4_8xxx_rd_direct(ha,
8765 QLA8XXX_CRB_DEV_STATE);
8766 ha->isp_ops->idc_unlock(ha);
8767 if (dev_state == QLA8XXX_DEV_FAILED) {
8768 ql4_printk(KERN_WARNING, ha, "%s: don't retry "
8769 "initialize adapter. H/W is in failed state\n",
8770 __func__);
8771 break;
8772 }
8773 }
8774 DEBUG2(printk("scsi: %s: retrying adapter initialization "
8775 "(%d)\n", __func__, init_retry_count));
8776
8777 if (ha->isp_ops->reset_chip(ha) == QLA_ERROR)
8778 continue;
8779
8780 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER);
8781 if (is_qla80XX(ha) && (status == QLA_ERROR)) {
8782 if (qla4_8xxx_check_init_adapter_retry(ha) == QLA_ERROR)
8783 goto skip_retry_init;
8784 }
8785 }
8786
8787 skip_retry_init:
8788 if (!test_bit(AF_ONLINE, &ha->flags)) {
8789 ql4_printk(KERN_WARNING, ha, "Failed to initialize adapter\n");
8790
8791 if ((is_qla8022(ha) && ql4xdontresethba) ||
8792 ((is_qla8032(ha) || is_qla8042(ha)) &&
8793 qla4_83xx_idc_dontreset(ha))) {
8794 /* Put the device in failed state. */
8795 DEBUG2(printk(KERN_ERR "HW STATE: FAILED\n"));
8796 ha->isp_ops->idc_lock(ha);
8797 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
8798 QLA8XXX_DEV_FAILED);
8799 ha->isp_ops->idc_unlock(ha);
8800 }
8801 ret = -ENODEV;
8802 goto remove_host;
8803 }
8804
8805 /* Startup the kernel thread for this host adapter. */
8806 DEBUG2(printk("scsi: %s: Starting kernel thread for "
8807 "qla4xxx_dpc\n", __func__));
8808 sprintf(buf, "qla4xxx_%lu_dpc", ha->host_no);
8809 ha->dpc_thread = create_singlethread_workqueue(buf);
8810 if (!ha->dpc_thread) {
8811 ql4_printk(KERN_WARNING, ha, "Unable to start DPC thread!\n");
8812 ret = -ENODEV;
8813 goto remove_host;
8814 }
8815 INIT_WORK(&ha->dpc_work, qla4xxx_do_dpc);
8816
8817 ha->task_wq = alloc_workqueue("qla4xxx_%lu_task", WQ_MEM_RECLAIM, 1,
8818 ha->host_no);
8819 if (!ha->task_wq) {
8820 ql4_printk(KERN_WARNING, ha, "Unable to start task thread!\n");
8821 ret = -ENODEV;
8822 goto remove_host;
8823 }
8824
8825 /*
8826 * For ISP-8XXX, request_irqs is called in qla4_8xxx_load_risc
8827 * (which is called indirectly by qla4xxx_initialize_adapter),
8828 * so that irqs will be registered after crbinit but before
8829 * mbx_intr_enable.
8830 */
8831 if (is_qla40XX(ha)) {
8832 ret = qla4xxx_request_irqs(ha);
8833 if (ret) {
8834 ql4_printk(KERN_WARNING, ha, "Failed to reserve "
8835 "interrupt %d already in use.\n", pdev->irq);
8836 goto remove_host;
8837 }
8838 }
8839
8840 pci_save_state(ha->pdev);
8841 ha->isp_ops->enable_intrs(ha);
8842
8843 /* Start timer thread. */
8844 qla4xxx_start_timer(ha, 1);
8845
8846 set_bit(AF_INIT_DONE, &ha->flags);
8847
8848 qla4_8xxx_alloc_sysfs_attr(ha);
8849
8850 printk(KERN_INFO
8851 " QLogic iSCSI HBA Driver version: %s\n"
8852 " QLogic ISP%04x @ %s, host#=%ld, fw=%02d.%02d.%02d.%02d\n",
8853 qla4xxx_version_str, ha->pdev->device, pci_name(ha->pdev),
8854 ha->host_no, ha->fw_info.fw_major, ha->fw_info.fw_minor,
8855 ha->fw_info.fw_patch, ha->fw_info.fw_build);
8856
8857 /* Set the driver version */
8858 if (is_qla80XX(ha))
8859 qla4_8xxx_set_param(ha, SET_DRVR_VERSION);
8860
8861 if (qla4xxx_setup_boot_info(ha))
8862 ql4_printk(KERN_ERR, ha,
8863 "%s: No iSCSI boot target configured\n", __func__);
8864
8865 set_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags);
8866 /* Perform the build ddb list and login to each */
8867 qla4xxx_build_ddb_list(ha, INIT_ADAPTER);
8868 iscsi_host_for_each_session(ha->host, qla4xxx_login_flash_ddb);
8869 qla4xxx_wait_login_resp_boot_tgt(ha);
8870
8871 qla4xxx_create_chap_list(ha);
8872
8873 qla4xxx_create_ifaces(ha);
8874 return 0;
8875
8876 remove_host:
8877 scsi_remove_host(ha->host);
8878
8879 probe_failed:
8880 qla4xxx_free_adapter(ha);
8881
8882 probe_failed_ioconfig:
8883 scsi_host_put(ha->host);
8884
8885 probe_disable_device:
8886 pci_disable_device(pdev);
8887
8888 return ret;
8889 }
8890
8891 /**
8892 * qla4xxx_prevent_other_port_reinit - prevent other port from re-initialize
8893 * @ha: pointer to adapter structure
8894 *
8895 * Mark the other ISP-4xxx port to indicate that the driver is being removed,
8896 * so that the other port will not re-initialize while in the process of
8897 * removing the ha due to driver unload or hba hotplug.
8898 **/
qla4xxx_prevent_other_port_reinit(struct scsi_qla_host * ha)8899 static void qla4xxx_prevent_other_port_reinit(struct scsi_qla_host *ha)
8900 {
8901 struct scsi_qla_host *other_ha = NULL;
8902 struct pci_dev *other_pdev = NULL;
8903 int fn = ISP4XXX_PCI_FN_2;
8904
8905 /*iscsi function numbers for ISP4xxx is 1 and 3*/
8906 if (PCI_FUNC(ha->pdev->devfn) & BIT_1)
8907 fn = ISP4XXX_PCI_FN_1;
8908
8909 other_pdev =
8910 pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus),
8911 ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
8912 fn));
8913
8914 /* Get other_ha if other_pdev is valid and state is enable*/
8915 if (other_pdev) {
8916 if (atomic_read(&other_pdev->enable_cnt)) {
8917 other_ha = pci_get_drvdata(other_pdev);
8918 if (other_ha) {
8919 set_bit(AF_HA_REMOVAL, &other_ha->flags);
8920 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: "
8921 "Prevent %s reinit\n", __func__,
8922 dev_name(&other_ha->pdev->dev)));
8923 }
8924 }
8925 pci_dev_put(other_pdev);
8926 }
8927 }
8928
qla4xxx_destroy_ddb(struct scsi_qla_host * ha,struct ddb_entry * ddb_entry)8929 static void qla4xxx_destroy_ddb(struct scsi_qla_host *ha,
8930 struct ddb_entry *ddb_entry)
8931 {
8932 struct dev_db_entry *fw_ddb_entry = NULL;
8933 dma_addr_t fw_ddb_entry_dma;
8934 unsigned long wtime;
8935 uint32_t ddb_state;
8936 int options;
8937 int status;
8938
8939 options = LOGOUT_OPTION_CLOSE_SESSION;
8940 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR) {
8941 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__);
8942 goto clear_ddb;
8943 }
8944
8945 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8946 &fw_ddb_entry_dma, GFP_KERNEL);
8947 if (!fw_ddb_entry) {
8948 ql4_printk(KERN_ERR, ha,
8949 "%s: Unable to allocate dma buffer\n", __func__);
8950 goto clear_ddb;
8951 }
8952
8953 wtime = jiffies + (HZ * LOGOUT_TOV);
8954 do {
8955 status = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
8956 fw_ddb_entry, fw_ddb_entry_dma,
8957 NULL, NULL, &ddb_state, NULL,
8958 NULL, NULL);
8959 if (status == QLA_ERROR)
8960 goto free_ddb;
8961
8962 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) ||
8963 (ddb_state == DDB_DS_SESSION_FAILED))
8964 goto free_ddb;
8965
8966 schedule_timeout_uninterruptible(HZ);
8967 } while ((time_after(wtime, jiffies)));
8968
8969 free_ddb:
8970 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8971 fw_ddb_entry, fw_ddb_entry_dma);
8972 clear_ddb:
8973 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
8974 }
8975
qla4xxx_destroy_fw_ddb_session(struct scsi_qla_host * ha)8976 static void qla4xxx_destroy_fw_ddb_session(struct scsi_qla_host *ha)
8977 {
8978 struct ddb_entry *ddb_entry;
8979 int idx;
8980
8981 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
8982
8983 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
8984 if ((ddb_entry != NULL) &&
8985 (ddb_entry->ddb_type == FLASH_DDB)) {
8986
8987 qla4xxx_destroy_ddb(ha, ddb_entry);
8988 /*
8989 * we have decremented the reference count of the driver
8990 * when we setup the session to have the driver unload
8991 * to be seamless without actually destroying the
8992 * session
8993 **/
8994 try_module_get(qla4xxx_iscsi_transport.owner);
8995 iscsi_destroy_endpoint(ddb_entry->conn->ep);
8996 qla4xxx_free_ddb(ha, ddb_entry);
8997 iscsi_session_teardown(ddb_entry->sess);
8998 }
8999 }
9000 }
9001 /**
9002 * qla4xxx_remove_adapter - callback function to remove adapter.
9003 * @pdev: PCI device pointer
9004 **/
qla4xxx_remove_adapter(struct pci_dev * pdev)9005 static void qla4xxx_remove_adapter(struct pci_dev *pdev)
9006 {
9007 struct scsi_qla_host *ha;
9008
9009 /*
9010 * If the PCI device is disabled then it means probe_adapter had
9011 * failed and resources already cleaned up on probe_adapter exit.
9012 */
9013 if (!pci_is_enabled(pdev))
9014 return;
9015
9016 ha = pci_get_drvdata(pdev);
9017
9018 if (is_qla40XX(ha))
9019 qla4xxx_prevent_other_port_reinit(ha);
9020
9021 /* destroy iface from sysfs */
9022 qla4xxx_destroy_ifaces(ha);
9023
9024 if ((!ql4xdisablesysfsboot) && ha->boot_kset)
9025 iscsi_boot_destroy_kset(ha->boot_kset);
9026
9027 qla4xxx_destroy_fw_ddb_session(ha);
9028 qla4_8xxx_free_sysfs_attr(ha);
9029
9030 qla4xxx_sysfs_ddb_remove(ha);
9031 scsi_remove_host(ha->host);
9032
9033 qla4xxx_free_adapter(ha);
9034
9035 scsi_host_put(ha->host);
9036
9037 pci_disable_device(pdev);
9038 }
9039
9040 /**
9041 * qla4xxx_config_dma_addressing() - Configure OS DMA addressing method.
9042 * @ha: HA context
9043 */
qla4xxx_config_dma_addressing(struct scsi_qla_host * ha)9044 static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha)
9045 {
9046 /* Update our PCI device dma_mask for full 64 bit mask */
9047 if (dma_set_mask_and_coherent(&ha->pdev->dev, DMA_BIT_MASK(64))) {
9048 dev_dbg(&ha->pdev->dev,
9049 "Failed to set 64 bit PCI consistent mask; "
9050 "using 32 bit.\n");
9051 dma_set_mask_and_coherent(&ha->pdev->dev, DMA_BIT_MASK(32));
9052 }
9053 }
9054
qla4xxx_slave_alloc(struct scsi_device * sdev)9055 static int qla4xxx_slave_alloc(struct scsi_device *sdev)
9056 {
9057 struct iscsi_cls_session *cls_sess;
9058 struct iscsi_session *sess;
9059 struct ddb_entry *ddb;
9060 int queue_depth = QL4_DEF_QDEPTH;
9061
9062 cls_sess = starget_to_session(sdev->sdev_target);
9063 sess = cls_sess->dd_data;
9064 ddb = sess->dd_data;
9065
9066 sdev->hostdata = ddb;
9067
9068 if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU)
9069 queue_depth = ql4xmaxqdepth;
9070
9071 scsi_change_queue_depth(sdev, queue_depth);
9072 return 0;
9073 }
9074
9075 /**
9076 * qla4xxx_del_from_active_array - returns an active srb
9077 * @ha: Pointer to host adapter structure.
9078 * @index: index into the active_array
9079 *
9080 * This routine removes and returns the srb at the specified index
9081 **/
qla4xxx_del_from_active_array(struct scsi_qla_host * ha,uint32_t index)9082 struct srb *qla4xxx_del_from_active_array(struct scsi_qla_host *ha,
9083 uint32_t index)
9084 {
9085 struct srb *srb = NULL;
9086 struct scsi_cmnd *cmd = NULL;
9087
9088 cmd = scsi_host_find_tag(ha->host, index);
9089 if (!cmd)
9090 return srb;
9091
9092 srb = qla4xxx_cmd_priv(cmd)->srb;
9093 if (!srb)
9094 return srb;
9095
9096 /* update counters */
9097 if (srb->flags & SRB_DMA_VALID) {
9098 ha->iocb_cnt -= srb->iocb_cnt;
9099 if (srb->cmd)
9100 srb->cmd->host_scribble =
9101 (unsigned char *)(unsigned long) MAX_SRBS;
9102 }
9103 return srb;
9104 }
9105
9106 /**
9107 * qla4xxx_eh_wait_on_command - waits for command to be returned by firmware
9108 * @ha: Pointer to host adapter structure.
9109 * @cmd: Scsi Command to wait on.
9110 *
9111 * This routine waits for the command to be returned by the Firmware
9112 * for some max time.
9113 **/
qla4xxx_eh_wait_on_command(struct scsi_qla_host * ha,struct scsi_cmnd * cmd)9114 static int qla4xxx_eh_wait_on_command(struct scsi_qla_host *ha,
9115 struct scsi_cmnd *cmd)
9116 {
9117 int done = 0;
9118 struct srb *rp;
9119 uint32_t max_wait_time = EH_WAIT_CMD_TOV;
9120 int ret = SUCCESS;
9121
9122 /* Dont wait on command if PCI error is being handled
9123 * by PCI AER driver
9124 */
9125 if (unlikely(pci_channel_offline(ha->pdev)) ||
9126 (test_bit(AF_EEH_BUSY, &ha->flags))) {
9127 ql4_printk(KERN_WARNING, ha, "scsi%ld: Return from %s\n",
9128 ha->host_no, __func__);
9129 return ret;
9130 }
9131
9132 do {
9133 /* Checking to see if its returned to OS */
9134 rp = qla4xxx_cmd_priv(cmd)->srb;
9135 if (rp == NULL) {
9136 done++;
9137 break;
9138 }
9139
9140 msleep(2000);
9141 } while (max_wait_time--);
9142
9143 return done;
9144 }
9145
9146 /**
9147 * qla4xxx_wait_for_hba_online - waits for HBA to come online
9148 * @ha: Pointer to host adapter structure
9149 **/
qla4xxx_wait_for_hba_online(struct scsi_qla_host * ha)9150 static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha)
9151 {
9152 unsigned long wait_online;
9153
9154 wait_online = jiffies + (HBA_ONLINE_TOV * HZ);
9155 while (time_before(jiffies, wait_online)) {
9156
9157 if (adapter_up(ha))
9158 return QLA_SUCCESS;
9159
9160 msleep(2000);
9161 }
9162
9163 return QLA_ERROR;
9164 }
9165
9166 /**
9167 * qla4xxx_eh_wait_for_commands - wait for active cmds to finish.
9168 * @ha: pointer to HBA
9169 * @stgt: pointer to SCSI target
9170 * @sdev: pointer to SCSI device
9171 *
9172 * This function waits for all outstanding commands to a lun to complete. It
9173 * returns 0 if all pending commands are returned and 1 otherwise.
9174 **/
qla4xxx_eh_wait_for_commands(struct scsi_qla_host * ha,struct scsi_target * stgt,struct scsi_device * sdev)9175 static int qla4xxx_eh_wait_for_commands(struct scsi_qla_host *ha,
9176 struct scsi_target *stgt,
9177 struct scsi_device *sdev)
9178 {
9179 int cnt;
9180 int status = 0;
9181 struct scsi_cmnd *cmd;
9182
9183 /*
9184 * Waiting for all commands for the designated target or dev
9185 * in the active array
9186 */
9187 for (cnt = 0; cnt < ha->host->can_queue; cnt++) {
9188 cmd = scsi_host_find_tag(ha->host, cnt);
9189 if (cmd && stgt == scsi_target(cmd->device) &&
9190 (!sdev || sdev == cmd->device)) {
9191 if (!qla4xxx_eh_wait_on_command(ha, cmd)) {
9192 status++;
9193 break;
9194 }
9195 }
9196 }
9197 return status;
9198 }
9199
9200 /**
9201 * qla4xxx_eh_abort - callback for abort task.
9202 * @cmd: Pointer to Linux's SCSI command structure
9203 *
9204 * This routine is called by the Linux OS to abort the specified
9205 * command.
9206 **/
qla4xxx_eh_abort(struct scsi_cmnd * cmd)9207 static int qla4xxx_eh_abort(struct scsi_cmnd *cmd)
9208 {
9209 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
9210 unsigned int id = cmd->device->id;
9211 uint64_t lun = cmd->device->lun;
9212 unsigned long flags;
9213 struct srb *srb = NULL;
9214 int ret = SUCCESS;
9215 int wait = 0;
9216 int rval;
9217
9218 ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%llu: Abort command issued cmd=%p, cdb=0x%x\n",
9219 ha->host_no, id, lun, cmd, cmd->cmnd[0]);
9220
9221 rval = qla4xxx_isp_check_reg(ha);
9222 if (rval != QLA_SUCCESS) {
9223 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n");
9224 return FAILED;
9225 }
9226
9227 spin_lock_irqsave(&ha->hardware_lock, flags);
9228 srb = qla4xxx_cmd_priv(cmd)->srb;
9229 if (!srb) {
9230 spin_unlock_irqrestore(&ha->hardware_lock, flags);
9231 ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%llu: Specified command has already completed.\n",
9232 ha->host_no, id, lun);
9233 return SUCCESS;
9234 }
9235 kref_get(&srb->srb_ref);
9236 spin_unlock_irqrestore(&ha->hardware_lock, flags);
9237
9238 if (qla4xxx_abort_task(ha, srb) != QLA_SUCCESS) {
9239 DEBUG3(printk("scsi%ld:%d:%llu: Abort_task mbx failed.\n",
9240 ha->host_no, id, lun));
9241 ret = FAILED;
9242 } else {
9243 DEBUG3(printk("scsi%ld:%d:%llu: Abort_task mbx success.\n",
9244 ha->host_no, id, lun));
9245 wait = 1;
9246 }
9247
9248 kref_put(&srb->srb_ref, qla4xxx_srb_compl);
9249
9250 /* Wait for command to complete */
9251 if (wait) {
9252 if (!qla4xxx_eh_wait_on_command(ha, cmd)) {
9253 DEBUG2(printk("scsi%ld:%d:%llu: Abort handler timed out\n",
9254 ha->host_no, id, lun));
9255 ret = FAILED;
9256 }
9257 }
9258
9259 ql4_printk(KERN_INFO, ha,
9260 "scsi%ld:%d:%llu: Abort command - %s\n",
9261 ha->host_no, id, lun, (ret == SUCCESS) ? "succeeded" : "failed");
9262
9263 return ret;
9264 }
9265
9266 /**
9267 * qla4xxx_eh_device_reset - callback for target reset.
9268 * @cmd: Pointer to Linux's SCSI command structure
9269 *
9270 * This routine is called by the Linux OS to reset all luns on the
9271 * specified target.
9272 **/
qla4xxx_eh_device_reset(struct scsi_cmnd * cmd)9273 static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd)
9274 {
9275 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
9276 struct ddb_entry *ddb_entry = cmd->device->hostdata;
9277 int ret = FAILED, stat;
9278 int rval;
9279
9280 if (!ddb_entry)
9281 return ret;
9282
9283 ret = iscsi_block_scsi_eh(cmd);
9284 if (ret)
9285 return ret;
9286 ret = FAILED;
9287
9288 ql4_printk(KERN_INFO, ha,
9289 "scsi%ld:%d:%d:%llu: DEVICE RESET ISSUED.\n", ha->host_no,
9290 cmd->device->channel, cmd->device->id, cmd->device->lun);
9291
9292 DEBUG2(printk(KERN_INFO
9293 "scsi%ld: DEVICE_RESET cmd=%p jiffies = 0x%lx, to=%x,"
9294 "dpc_flags=%lx, status=%x allowed=%d\n", ha->host_no,
9295 cmd, jiffies, scsi_cmd_to_rq(cmd)->timeout / HZ,
9296 ha->dpc_flags, cmd->result, cmd->allowed));
9297
9298 rval = qla4xxx_isp_check_reg(ha);
9299 if (rval != QLA_SUCCESS) {
9300 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n");
9301 return FAILED;
9302 }
9303
9304 /* FIXME: wait for hba to go online */
9305 stat = qla4xxx_reset_lun(ha, ddb_entry, cmd->device->lun);
9306 if (stat != QLA_SUCCESS) {
9307 ql4_printk(KERN_INFO, ha, "DEVICE RESET FAILED. %d\n", stat);
9308 goto eh_dev_reset_done;
9309 }
9310
9311 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device),
9312 cmd->device)) {
9313 ql4_printk(KERN_INFO, ha,
9314 "DEVICE RESET FAILED - waiting for "
9315 "commands.\n");
9316 goto eh_dev_reset_done;
9317 }
9318
9319 /* Send marker. */
9320 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun,
9321 MM_LUN_RESET) != QLA_SUCCESS)
9322 goto eh_dev_reset_done;
9323
9324 ql4_printk(KERN_INFO, ha,
9325 "scsi(%ld:%d:%d:%llu): DEVICE RESET SUCCEEDED.\n",
9326 ha->host_no, cmd->device->channel, cmd->device->id,
9327 cmd->device->lun);
9328
9329 ret = SUCCESS;
9330
9331 eh_dev_reset_done:
9332
9333 return ret;
9334 }
9335
9336 /**
9337 * qla4xxx_eh_target_reset - callback for target reset.
9338 * @cmd: Pointer to Linux's SCSI command structure
9339 *
9340 * This routine is called by the Linux OS to reset the target.
9341 **/
qla4xxx_eh_target_reset(struct scsi_cmnd * cmd)9342 static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd)
9343 {
9344 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
9345 struct ddb_entry *ddb_entry = cmd->device->hostdata;
9346 int stat, ret;
9347 int rval;
9348
9349 if (!ddb_entry)
9350 return FAILED;
9351
9352 ret = iscsi_block_scsi_eh(cmd);
9353 if (ret)
9354 return ret;
9355
9356 starget_printk(KERN_INFO, scsi_target(cmd->device),
9357 "WARM TARGET RESET ISSUED.\n");
9358
9359 DEBUG2(printk(KERN_INFO
9360 "scsi%ld: TARGET_DEVICE_RESET cmd=%p jiffies = 0x%lx, "
9361 "to=%x,dpc_flags=%lx, status=%x allowed=%d\n",
9362 ha->host_no, cmd, jiffies, scsi_cmd_to_rq(cmd)->timeout / HZ,
9363 ha->dpc_flags, cmd->result, cmd->allowed));
9364
9365 rval = qla4xxx_isp_check_reg(ha);
9366 if (rval != QLA_SUCCESS) {
9367 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n");
9368 return FAILED;
9369 }
9370
9371 stat = qla4xxx_reset_target(ha, ddb_entry);
9372 if (stat != QLA_SUCCESS) {
9373 starget_printk(KERN_INFO, scsi_target(cmd->device),
9374 "WARM TARGET RESET FAILED.\n");
9375 return FAILED;
9376 }
9377
9378 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device),
9379 NULL)) {
9380 starget_printk(KERN_INFO, scsi_target(cmd->device),
9381 "WARM TARGET DEVICE RESET FAILED - "
9382 "waiting for commands.\n");
9383 return FAILED;
9384 }
9385
9386 /* Send marker. */
9387 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun,
9388 MM_TGT_WARM_RESET) != QLA_SUCCESS) {
9389 starget_printk(KERN_INFO, scsi_target(cmd->device),
9390 "WARM TARGET DEVICE RESET FAILED - "
9391 "marker iocb failed.\n");
9392 return FAILED;
9393 }
9394
9395 starget_printk(KERN_INFO, scsi_target(cmd->device),
9396 "WARM TARGET RESET SUCCEEDED.\n");
9397 return SUCCESS;
9398 }
9399
9400 /**
9401 * qla4xxx_is_eh_active - check if error handler is running
9402 * @shost: Pointer to SCSI Host struct
9403 *
9404 * This routine finds that if reset host is called in EH
9405 * scenario or from some application like sg_reset
9406 **/
qla4xxx_is_eh_active(struct Scsi_Host * shost)9407 static int qla4xxx_is_eh_active(struct Scsi_Host *shost)
9408 {
9409 if (shost->shost_state == SHOST_RECOVERY)
9410 return 1;
9411 return 0;
9412 }
9413
9414 /**
9415 * qla4xxx_eh_host_reset - kernel callback
9416 * @cmd: Pointer to Linux's SCSI command structure
9417 *
9418 * This routine is invoked by the Linux kernel to perform fatal error
9419 * recovery on the specified adapter.
9420 **/
qla4xxx_eh_host_reset(struct scsi_cmnd * cmd)9421 static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd)
9422 {
9423 int return_status = FAILED;
9424 struct scsi_qla_host *ha;
9425 int rval;
9426
9427 ha = to_qla_host(cmd->device->host);
9428
9429 rval = qla4xxx_isp_check_reg(ha);
9430 if (rval != QLA_SUCCESS) {
9431 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n");
9432 return FAILED;
9433 }
9434
9435 if ((is_qla8032(ha) || is_qla8042(ha)) && ql4xdontresethba)
9436 qla4_83xx_set_idc_dontreset(ha);
9437
9438 /*
9439 * For ISP8324 and ISP8042, if IDC_CTRL DONTRESET_BIT0 is set by other
9440 * protocol drivers, we should not set device_state to NEED_RESET
9441 */
9442 if (ql4xdontresethba ||
9443 ((is_qla8032(ha) || is_qla8042(ha)) &&
9444 qla4_83xx_idc_dontreset(ha))) {
9445 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n",
9446 ha->host_no, __func__));
9447
9448 /* Clear outstanding srb in queues */
9449 if (qla4xxx_is_eh_active(cmd->device->host))
9450 qla4xxx_abort_active_cmds(ha, DID_ABORT << 16);
9451
9452 return FAILED;
9453 }
9454
9455 ql4_printk(KERN_INFO, ha,
9456 "scsi(%ld:%d:%d:%llu): HOST RESET ISSUED.\n", ha->host_no,
9457 cmd->device->channel, cmd->device->id, cmd->device->lun);
9458
9459 if (qla4xxx_wait_for_hba_online(ha) != QLA_SUCCESS) {
9460 DEBUG2(printk("scsi%ld:%d: %s: Unable to reset host. Adapter "
9461 "DEAD.\n", ha->host_no, cmd->device->channel,
9462 __func__));
9463
9464 return FAILED;
9465 }
9466
9467 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
9468 if (is_qla80XX(ha))
9469 set_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
9470 else
9471 set_bit(DPC_RESET_HA, &ha->dpc_flags);
9472 }
9473
9474 if (qla4xxx_recover_adapter(ha) == QLA_SUCCESS)
9475 return_status = SUCCESS;
9476
9477 ql4_printk(KERN_INFO, ha, "HOST RESET %s.\n",
9478 return_status == FAILED ? "FAILED" : "SUCCEEDED");
9479
9480 return return_status;
9481 }
9482
qla4xxx_context_reset(struct scsi_qla_host * ha)9483 static int qla4xxx_context_reset(struct scsi_qla_host *ha)
9484 {
9485 uint32_t mbox_cmd[MBOX_REG_COUNT];
9486 uint32_t mbox_sts[MBOX_REG_COUNT];
9487 struct addr_ctrl_blk_def *acb = NULL;
9488 uint32_t acb_len = sizeof(struct addr_ctrl_blk_def);
9489 int rval = QLA_SUCCESS;
9490 dma_addr_t acb_dma;
9491
9492 acb = dma_alloc_coherent(&ha->pdev->dev,
9493 sizeof(struct addr_ctrl_blk_def),
9494 &acb_dma, GFP_KERNEL);
9495 if (!acb) {
9496 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc acb\n",
9497 __func__);
9498 rval = -ENOMEM;
9499 goto exit_port_reset;
9500 }
9501
9502 memset(acb, 0, acb_len);
9503
9504 rval = qla4xxx_get_acb(ha, acb_dma, PRIMARI_ACB, acb_len);
9505 if (rval != QLA_SUCCESS) {
9506 rval = -EIO;
9507 goto exit_free_acb;
9508 }
9509
9510 rval = qla4xxx_disable_acb(ha);
9511 if (rval != QLA_SUCCESS) {
9512 rval = -EIO;
9513 goto exit_free_acb;
9514 }
9515
9516 wait_for_completion_timeout(&ha->disable_acb_comp,
9517 DISABLE_ACB_TOV * HZ);
9518
9519 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], acb_dma);
9520 if (rval != QLA_SUCCESS) {
9521 rval = -EIO;
9522 goto exit_free_acb;
9523 }
9524
9525 exit_free_acb:
9526 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk_def),
9527 acb, acb_dma);
9528 exit_port_reset:
9529 DEBUG2(ql4_printk(KERN_INFO, ha, "%s %s\n", __func__,
9530 rval == QLA_SUCCESS ? "SUCCEEDED" : "FAILED"));
9531 return rval;
9532 }
9533
qla4xxx_host_reset(struct Scsi_Host * shost,int reset_type)9534 static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type)
9535 {
9536 struct scsi_qla_host *ha = to_qla_host(shost);
9537 int rval = QLA_SUCCESS;
9538 uint32_t idc_ctrl;
9539
9540 if (ql4xdontresethba) {
9541 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Don't Reset HBA\n",
9542 __func__));
9543 rval = -EPERM;
9544 goto exit_host_reset;
9545 }
9546
9547 if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
9548 goto recover_adapter;
9549
9550 switch (reset_type) {
9551 case SCSI_ADAPTER_RESET:
9552 set_bit(DPC_RESET_HA, &ha->dpc_flags);
9553 break;
9554 case SCSI_FIRMWARE_RESET:
9555 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
9556 if (is_qla80XX(ha))
9557 /* set firmware context reset */
9558 set_bit(DPC_RESET_HA_FW_CONTEXT,
9559 &ha->dpc_flags);
9560 else {
9561 rval = qla4xxx_context_reset(ha);
9562 goto exit_host_reset;
9563 }
9564 }
9565 break;
9566 }
9567
9568 recover_adapter:
9569 /* For ISP8324 and ISP8042 set graceful reset bit in IDC_DRV_CTRL if
9570 * reset is issued by application */
9571 if ((is_qla8032(ha) || is_qla8042(ha)) &&
9572 test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
9573 idc_ctrl = qla4_83xx_rd_reg(ha, QLA83XX_IDC_DRV_CTRL);
9574 qla4_83xx_wr_reg(ha, QLA83XX_IDC_DRV_CTRL,
9575 (idc_ctrl | GRACEFUL_RESET_BIT1));
9576 }
9577
9578 rval = qla4xxx_recover_adapter(ha);
9579 if (rval != QLA_SUCCESS) {
9580 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: recover adapter fail\n",
9581 __func__));
9582 rval = -EIO;
9583 }
9584
9585 exit_host_reset:
9586 return rval;
9587 }
9588
9589 /* PCI AER driver recovers from all correctable errors w/o
9590 * driver intervention. For uncorrectable errors PCI AER
9591 * driver calls the following device driver's callbacks
9592 *
9593 * - Fatal Errors - link_reset
9594 * - Non-Fatal Errors - driver's error_detected() which
9595 * returns CAN_RECOVER, NEED_RESET or DISCONNECT.
9596 *
9597 * PCI AER driver calls
9598 * CAN_RECOVER - driver's mmio_enabled(), mmio_enabled()
9599 * returns RECOVERED or NEED_RESET if fw_hung
9600 * NEED_RESET - driver's slot_reset()
9601 * DISCONNECT - device is dead & cannot recover
9602 * RECOVERED - driver's resume()
9603 */
9604 static pci_ers_result_t
qla4xxx_pci_error_detected(struct pci_dev * pdev,pci_channel_state_t state)9605 qla4xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
9606 {
9607 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9608
9609 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: error detected:state %x\n",
9610 ha->host_no, __func__, state);
9611
9612 if (!is_aer_supported(ha))
9613 return PCI_ERS_RESULT_NONE;
9614
9615 switch (state) {
9616 case pci_channel_io_normal:
9617 clear_bit(AF_EEH_BUSY, &ha->flags);
9618 return PCI_ERS_RESULT_CAN_RECOVER;
9619 case pci_channel_io_frozen:
9620 set_bit(AF_EEH_BUSY, &ha->flags);
9621 qla4xxx_mailbox_premature_completion(ha);
9622 qla4xxx_free_irqs(ha);
9623 pci_disable_device(pdev);
9624 /* Return back all IOs */
9625 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
9626 return PCI_ERS_RESULT_NEED_RESET;
9627 case pci_channel_io_perm_failure:
9628 set_bit(AF_EEH_BUSY, &ha->flags);
9629 set_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags);
9630 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
9631 return PCI_ERS_RESULT_DISCONNECT;
9632 }
9633 return PCI_ERS_RESULT_NEED_RESET;
9634 }
9635
9636 /**
9637 * qla4xxx_pci_mmio_enabled() - gets called if
9638 * qla4xxx_pci_error_detected() returns PCI_ERS_RESULT_CAN_RECOVER
9639 * and read/write to the device still works.
9640 * @pdev: PCI device pointer
9641 **/
9642 static pci_ers_result_t
qla4xxx_pci_mmio_enabled(struct pci_dev * pdev)9643 qla4xxx_pci_mmio_enabled(struct pci_dev *pdev)
9644 {
9645 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9646
9647 if (!is_aer_supported(ha))
9648 return PCI_ERS_RESULT_NONE;
9649
9650 return PCI_ERS_RESULT_RECOVERED;
9651 }
9652
qla4_8xxx_error_recovery(struct scsi_qla_host * ha)9653 static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha)
9654 {
9655 uint32_t rval = QLA_ERROR;
9656 int fn;
9657 struct pci_dev *other_pdev = NULL;
9658
9659 ql4_printk(KERN_WARNING, ha, "scsi%ld: In %s\n", ha->host_no, __func__);
9660
9661 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
9662
9663 if (test_bit(AF_ONLINE, &ha->flags)) {
9664 clear_bit(AF_ONLINE, &ha->flags);
9665 clear_bit(AF_LINK_UP, &ha->flags);
9666 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session);
9667 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
9668 }
9669
9670 fn = PCI_FUNC(ha->pdev->devfn);
9671 if (is_qla8022(ha)) {
9672 while (fn > 0) {
9673 fn--;
9674 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Finding PCI device at func %x\n",
9675 ha->host_no, __func__, fn);
9676 /* Get the pci device given the domain, bus,
9677 * slot/function number */
9678 other_pdev = pci_get_domain_bus_and_slot(
9679 pci_domain_nr(ha->pdev->bus),
9680 ha->pdev->bus->number,
9681 PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
9682 fn));
9683
9684 if (!other_pdev)
9685 continue;
9686
9687 if (atomic_read(&other_pdev->enable_cnt)) {
9688 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Found PCI func in enabled state%x\n",
9689 ha->host_no, __func__, fn);
9690 pci_dev_put(other_pdev);
9691 break;
9692 }
9693 pci_dev_put(other_pdev);
9694 }
9695 } else {
9696 /* this case is meant for ISP83xx/ISP84xx only */
9697 if (qla4_83xx_can_perform_reset(ha)) {
9698 /* reset fn as iSCSI is going to perform the reset */
9699 fn = 0;
9700 }
9701 }
9702
9703 /* The first function on the card, the reset owner will
9704 * start & initialize the firmware. The other functions
9705 * on the card will reset the firmware context
9706 */
9707 if (!fn) {
9708 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn being reset "
9709 "0x%x is the owner\n", ha->host_no, __func__,
9710 ha->pdev->devfn);
9711
9712 ha->isp_ops->idc_lock(ha);
9713 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9714 QLA8XXX_DEV_COLD);
9715 ha->isp_ops->idc_unlock(ha);
9716
9717 rval = qla4_8xxx_update_idc_reg(ha);
9718 if (rval == QLA_ERROR) {
9719 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: FAILED\n",
9720 ha->host_no, __func__);
9721 ha->isp_ops->idc_lock(ha);
9722 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9723 QLA8XXX_DEV_FAILED);
9724 ha->isp_ops->idc_unlock(ha);
9725 goto exit_error_recovery;
9726 }
9727
9728 clear_bit(AF_FW_RECOVERY, &ha->flags);
9729 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
9730
9731 if (rval != QLA_SUCCESS) {
9732 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: "
9733 "FAILED\n", ha->host_no, __func__);
9734 qla4xxx_free_irqs(ha);
9735 ha->isp_ops->idc_lock(ha);
9736 qla4_8xxx_clear_drv_active(ha);
9737 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9738 QLA8XXX_DEV_FAILED);
9739 ha->isp_ops->idc_unlock(ha);
9740 } else {
9741 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: "
9742 "READY\n", ha->host_no, __func__);
9743 ha->isp_ops->idc_lock(ha);
9744 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9745 QLA8XXX_DEV_READY);
9746 /* Clear driver state register */
9747 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_STATE, 0);
9748 qla4_8xxx_set_drv_active(ha);
9749 ha->isp_ops->idc_unlock(ha);
9750 ha->isp_ops->enable_intrs(ha);
9751 }
9752 } else {
9753 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn 0x%x is not "
9754 "the reset owner\n", ha->host_no, __func__,
9755 ha->pdev->devfn);
9756 if ((qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE) ==
9757 QLA8XXX_DEV_READY)) {
9758 clear_bit(AF_FW_RECOVERY, &ha->flags);
9759 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
9760 if (rval == QLA_SUCCESS)
9761 ha->isp_ops->enable_intrs(ha);
9762 else
9763 qla4xxx_free_irqs(ha);
9764
9765 ha->isp_ops->idc_lock(ha);
9766 qla4_8xxx_set_drv_active(ha);
9767 ha->isp_ops->idc_unlock(ha);
9768 }
9769 }
9770 exit_error_recovery:
9771 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
9772 return rval;
9773 }
9774
9775 static pci_ers_result_t
qla4xxx_pci_slot_reset(struct pci_dev * pdev)9776 qla4xxx_pci_slot_reset(struct pci_dev *pdev)
9777 {
9778 pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
9779 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9780 int rc;
9781
9782 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: slot_reset\n",
9783 ha->host_no, __func__);
9784
9785 if (!is_aer_supported(ha))
9786 return PCI_ERS_RESULT_NONE;
9787
9788 /* Restore the saved state of PCIe device -
9789 * BAR registers, PCI Config space, PCIX, MSI,
9790 * IOV states
9791 */
9792 pci_restore_state(pdev);
9793
9794 /* pci_restore_state() clears the saved_state flag of the device
9795 * save restored state which resets saved_state flag
9796 */
9797 pci_save_state(pdev);
9798
9799 /* Initialize device or resume if in suspended state */
9800 rc = pci_enable_device(pdev);
9801 if (rc) {
9802 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Can't re-enable "
9803 "device after reset\n", ha->host_no, __func__);
9804 goto exit_slot_reset;
9805 }
9806
9807 ha->isp_ops->disable_intrs(ha);
9808
9809 if (is_qla80XX(ha)) {
9810 if (qla4_8xxx_error_recovery(ha) == QLA_SUCCESS) {
9811 ret = PCI_ERS_RESULT_RECOVERED;
9812 goto exit_slot_reset;
9813 } else
9814 goto exit_slot_reset;
9815 }
9816
9817 exit_slot_reset:
9818 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Return=%x\n"
9819 "device after reset\n", ha->host_no, __func__, ret);
9820 return ret;
9821 }
9822
9823 static void
qla4xxx_pci_resume(struct pci_dev * pdev)9824 qla4xxx_pci_resume(struct pci_dev *pdev)
9825 {
9826 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9827 int ret;
9828
9829 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: pci_resume\n",
9830 ha->host_no, __func__);
9831
9832 ret = qla4xxx_wait_for_hba_online(ha);
9833 if (ret != QLA_SUCCESS) {
9834 ql4_printk(KERN_ERR, ha, "scsi%ld: %s: the device failed to "
9835 "resume I/O from slot/link_reset\n", ha->host_no,
9836 __func__);
9837 }
9838
9839 clear_bit(AF_EEH_BUSY, &ha->flags);
9840 }
9841
9842 static const struct pci_error_handlers qla4xxx_err_handler = {
9843 .error_detected = qla4xxx_pci_error_detected,
9844 .mmio_enabled = qla4xxx_pci_mmio_enabled,
9845 .slot_reset = qla4xxx_pci_slot_reset,
9846 .resume = qla4xxx_pci_resume,
9847 };
9848
9849 static struct pci_device_id qla4xxx_pci_tbl[] = {
9850 {
9851 .vendor = PCI_VENDOR_ID_QLOGIC,
9852 .device = PCI_DEVICE_ID_QLOGIC_ISP4010,
9853 .subvendor = PCI_ANY_ID,
9854 .subdevice = PCI_ANY_ID,
9855 },
9856 {
9857 .vendor = PCI_VENDOR_ID_QLOGIC,
9858 .device = PCI_DEVICE_ID_QLOGIC_ISP4022,
9859 .subvendor = PCI_ANY_ID,
9860 .subdevice = PCI_ANY_ID,
9861 },
9862 {
9863 .vendor = PCI_VENDOR_ID_QLOGIC,
9864 .device = PCI_DEVICE_ID_QLOGIC_ISP4032,
9865 .subvendor = PCI_ANY_ID,
9866 .subdevice = PCI_ANY_ID,
9867 },
9868 {
9869 .vendor = PCI_VENDOR_ID_QLOGIC,
9870 .device = PCI_DEVICE_ID_QLOGIC_ISP8022,
9871 .subvendor = PCI_ANY_ID,
9872 .subdevice = PCI_ANY_ID,
9873 },
9874 {
9875 .vendor = PCI_VENDOR_ID_QLOGIC,
9876 .device = PCI_DEVICE_ID_QLOGIC_ISP8324,
9877 .subvendor = PCI_ANY_ID,
9878 .subdevice = PCI_ANY_ID,
9879 },
9880 {
9881 .vendor = PCI_VENDOR_ID_QLOGIC,
9882 .device = PCI_DEVICE_ID_QLOGIC_ISP8042,
9883 .subvendor = PCI_ANY_ID,
9884 .subdevice = PCI_ANY_ID,
9885 },
9886 {0, 0},
9887 };
9888 MODULE_DEVICE_TABLE(pci, qla4xxx_pci_tbl);
9889
9890 static struct pci_driver qla4xxx_pci_driver = {
9891 .name = DRIVER_NAME,
9892 .id_table = qla4xxx_pci_tbl,
9893 .probe = qla4xxx_probe_adapter,
9894 .remove = qla4xxx_remove_adapter,
9895 .err_handler = &qla4xxx_err_handler,
9896 };
9897
qla4xxx_module_init(void)9898 static int __init qla4xxx_module_init(void)
9899 {
9900 int ret;
9901
9902 if (ql4xqfulltracking)
9903 qla4xxx_driver_template.track_queue_depth = 1;
9904
9905 /* Allocate cache for SRBs. */
9906 srb_cachep = kmem_cache_create("qla4xxx_srbs", sizeof(struct srb), 0,
9907 SLAB_HWCACHE_ALIGN, NULL);
9908 if (srb_cachep == NULL) {
9909 printk(KERN_ERR
9910 "%s: Unable to allocate SRB cache..."
9911 "Failing load!\n", DRIVER_NAME);
9912 ret = -ENOMEM;
9913 goto no_srp_cache;
9914 }
9915
9916 /* Derive version string. */
9917 strcpy(qla4xxx_version_str, QLA4XXX_DRIVER_VERSION);
9918 if (ql4xextended_error_logging)
9919 strcat(qla4xxx_version_str, "-debug");
9920
9921 qla4xxx_scsi_transport =
9922 iscsi_register_transport(&qla4xxx_iscsi_transport);
9923 if (!qla4xxx_scsi_transport){
9924 ret = -ENODEV;
9925 goto release_srb_cache;
9926 }
9927
9928 ret = pci_register_driver(&qla4xxx_pci_driver);
9929 if (ret)
9930 goto unregister_transport;
9931
9932 printk(KERN_INFO "QLogic iSCSI HBA Driver\n");
9933 return 0;
9934
9935 unregister_transport:
9936 iscsi_unregister_transport(&qla4xxx_iscsi_transport);
9937 release_srb_cache:
9938 kmem_cache_destroy(srb_cachep);
9939 no_srp_cache:
9940 return ret;
9941 }
9942
qla4xxx_module_exit(void)9943 static void __exit qla4xxx_module_exit(void)
9944 {
9945 pci_unregister_driver(&qla4xxx_pci_driver);
9946 iscsi_unregister_transport(&qla4xxx_iscsi_transport);
9947 kmem_cache_destroy(srb_cachep);
9948 }
9949
9950 module_init(qla4xxx_module_init);
9951 module_exit(qla4xxx_module_exit);
9952
9953 MODULE_AUTHOR("QLogic Corporation");
9954 MODULE_DESCRIPTION("QLogic iSCSI HBA Driver");
9955 MODULE_LICENSE("GPL");
9956 MODULE_VERSION(QLA4XXX_DRIVER_VERSION);
9957