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
230 .eh_abort_handler = qla4xxx_eh_abort,
231 .eh_device_reset_handler = qla4xxx_eh_device_reset,
232 .eh_target_reset_handler = qla4xxx_eh_target_reset,
233 .eh_host_reset_handler = qla4xxx_eh_host_reset,
234 .eh_timed_out = qla4xxx_eh_cmd_timed_out,
235
236 .slave_alloc = qla4xxx_slave_alloc,
237 .change_queue_depth = scsi_change_queue_depth,
238
239 .this_id = -1,
240 .cmd_per_lun = 3,
241 .sg_tablesize = SG_ALL,
242
243 .max_sectors = 0xFFFF,
244 .shost_attrs = qla4xxx_host_attrs,
245 .host_reset = qla4xxx_host_reset,
246 .vendor_id = SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC,
247 };
248
249 static struct iscsi_transport qla4xxx_iscsi_transport = {
250 .owner = THIS_MODULE,
251 .name = DRIVER_NAME,
252 .caps = CAP_TEXT_NEGO |
253 CAP_DATA_PATH_OFFLOAD | CAP_HDRDGST |
254 CAP_DATADGST | CAP_LOGIN_OFFLOAD |
255 CAP_MULTI_R2T,
256 .attr_is_visible = qla4_attr_is_visible,
257 .create_session = qla4xxx_session_create,
258 .destroy_session = qla4xxx_session_destroy,
259 .start_conn = qla4xxx_conn_start,
260 .create_conn = qla4xxx_conn_create,
261 .bind_conn = qla4xxx_conn_bind,
262 .unbind_conn = iscsi_conn_unbind,
263 .stop_conn = iscsi_conn_stop,
264 .destroy_conn = qla4xxx_conn_destroy,
265 .set_param = iscsi_set_param,
266 .get_conn_param = qla4xxx_conn_get_param,
267 .get_session_param = qla4xxx_session_get_param,
268 .get_ep_param = qla4xxx_get_ep_param,
269 .ep_connect = qla4xxx_ep_connect,
270 .ep_poll = qla4xxx_ep_poll,
271 .ep_disconnect = qla4xxx_ep_disconnect,
272 .get_stats = qla4xxx_conn_get_stats,
273 .send_pdu = iscsi_conn_send_pdu,
274 .xmit_task = qla4xxx_task_xmit,
275 .cleanup_task = qla4xxx_task_cleanup,
276 .alloc_pdu = qla4xxx_alloc_pdu,
277
278 .get_host_param = qla4xxx_host_get_param,
279 .set_iface_param = qla4xxx_iface_set_param,
280 .get_iface_param = qla4xxx_get_iface_param,
281 .bsg_request = qla4xxx_bsg_request,
282 .send_ping = qla4xxx_send_ping,
283 .get_chap = qla4xxx_get_chap_list,
284 .delete_chap = qla4xxx_delete_chap,
285 .set_chap = qla4xxx_set_chap_entry,
286 .get_flashnode_param = qla4xxx_sysfs_ddb_get_param,
287 .set_flashnode_param = qla4xxx_sysfs_ddb_set_param,
288 .new_flashnode = qla4xxx_sysfs_ddb_add,
289 .del_flashnode = qla4xxx_sysfs_ddb_delete,
290 .login_flashnode = qla4xxx_sysfs_ddb_login,
291 .logout_flashnode = qla4xxx_sysfs_ddb_logout,
292 .logout_flashnode_sid = qla4xxx_sysfs_ddb_logout_sid,
293 .get_host_stats = qla4xxx_get_host_stats,
294 };
295
296 static struct scsi_transport_template *qla4xxx_scsi_transport;
297
qla4xxx_isp_check_reg(struct scsi_qla_host * ha)298 static int qla4xxx_isp_check_reg(struct scsi_qla_host *ha)
299 {
300 u32 reg_val = 0;
301 int rval = QLA_SUCCESS;
302
303 if (is_qla8022(ha))
304 reg_val = readl(&ha->qla4_82xx_reg->host_status);
305 else if (is_qla8032(ha) || is_qla8042(ha))
306 reg_val = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_ALIVE_COUNTER);
307 else
308 reg_val = readw(&ha->reg->ctrl_status);
309
310 if (reg_val == QL4_ISP_REG_DISCONNECT)
311 rval = QLA_ERROR;
312
313 return rval;
314 }
315
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)316 static int qla4xxx_send_ping(struct Scsi_Host *shost, uint32_t iface_num,
317 uint32_t iface_type, uint32_t payload_size,
318 uint32_t pid, struct sockaddr *dst_addr)
319 {
320 struct scsi_qla_host *ha = to_qla_host(shost);
321 struct sockaddr_in *addr;
322 struct sockaddr_in6 *addr6;
323 uint32_t options = 0;
324 uint8_t ipaddr[IPv6_ADDR_LEN];
325 int rval;
326
327 memset(ipaddr, 0, IPv6_ADDR_LEN);
328 /* IPv4 to IPv4 */
329 if ((iface_type == ISCSI_IFACE_TYPE_IPV4) &&
330 (dst_addr->sa_family == AF_INET)) {
331 addr = (struct sockaddr_in *)dst_addr;
332 memcpy(ipaddr, &addr->sin_addr.s_addr, IP_ADDR_LEN);
333 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv4 Ping src: %pI4 "
334 "dest: %pI4\n", __func__,
335 &ha->ip_config.ip_address, ipaddr));
336 rval = qla4xxx_ping_iocb(ha, options, payload_size, pid,
337 ipaddr);
338 if (rval)
339 rval = -EINVAL;
340 } else if ((iface_type == ISCSI_IFACE_TYPE_IPV6) &&
341 (dst_addr->sa_family == AF_INET6)) {
342 /* IPv6 to IPv6 */
343 addr6 = (struct sockaddr_in6 *)dst_addr;
344 memcpy(ipaddr, &addr6->sin6_addr.in6_u.u6_addr8, IPv6_ADDR_LEN);
345
346 options |= PING_IPV6_PROTOCOL_ENABLE;
347
348 /* Ping using LinkLocal address */
349 if ((iface_num == 0) || (iface_num == 1)) {
350 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: LinkLocal Ping "
351 "src: %pI6 dest: %pI6\n", __func__,
352 &ha->ip_config.ipv6_link_local_addr,
353 ipaddr));
354 options |= PING_IPV6_LINKLOCAL_ADDR;
355 rval = qla4xxx_ping_iocb(ha, options, payload_size,
356 pid, ipaddr);
357 } else {
358 ql4_printk(KERN_WARNING, ha, "%s: iface num = %d "
359 "not supported\n", __func__, iface_num);
360 rval = -ENOSYS;
361 goto exit_send_ping;
362 }
363
364 /*
365 * If ping using LinkLocal address fails, try ping using
366 * IPv6 address
367 */
368 if (rval != QLA_SUCCESS) {
369 options &= ~PING_IPV6_LINKLOCAL_ADDR;
370 if (iface_num == 0) {
371 options |= PING_IPV6_ADDR0;
372 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv6 "
373 "Ping src: %pI6 "
374 "dest: %pI6\n", __func__,
375 &ha->ip_config.ipv6_addr0,
376 ipaddr));
377 } else if (iface_num == 1) {
378 options |= PING_IPV6_ADDR1;
379 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv6 "
380 "Ping src: %pI6 "
381 "dest: %pI6\n", __func__,
382 &ha->ip_config.ipv6_addr1,
383 ipaddr));
384 }
385 rval = qla4xxx_ping_iocb(ha, options, payload_size,
386 pid, ipaddr);
387 if (rval)
388 rval = -EINVAL;
389 }
390 } else
391 rval = -ENOSYS;
392 exit_send_ping:
393 return rval;
394 }
395
qla4_attr_is_visible(int param_type,int param)396 static umode_t qla4_attr_is_visible(int param_type, int param)
397 {
398 switch (param_type) {
399 case ISCSI_HOST_PARAM:
400 switch (param) {
401 case ISCSI_HOST_PARAM_HWADDRESS:
402 case ISCSI_HOST_PARAM_IPADDRESS:
403 case ISCSI_HOST_PARAM_INITIATOR_NAME:
404 case ISCSI_HOST_PARAM_PORT_STATE:
405 case ISCSI_HOST_PARAM_PORT_SPEED:
406 return S_IRUGO;
407 default:
408 return 0;
409 }
410 case ISCSI_PARAM:
411 switch (param) {
412 case ISCSI_PARAM_PERSISTENT_ADDRESS:
413 case ISCSI_PARAM_PERSISTENT_PORT:
414 case ISCSI_PARAM_CONN_ADDRESS:
415 case ISCSI_PARAM_CONN_PORT:
416 case ISCSI_PARAM_TARGET_NAME:
417 case ISCSI_PARAM_TPGT:
418 case ISCSI_PARAM_TARGET_ALIAS:
419 case ISCSI_PARAM_MAX_BURST:
420 case ISCSI_PARAM_MAX_R2T:
421 case ISCSI_PARAM_FIRST_BURST:
422 case ISCSI_PARAM_MAX_RECV_DLENGTH:
423 case ISCSI_PARAM_MAX_XMIT_DLENGTH:
424 case ISCSI_PARAM_IFACE_NAME:
425 case ISCSI_PARAM_CHAP_OUT_IDX:
426 case ISCSI_PARAM_CHAP_IN_IDX:
427 case ISCSI_PARAM_USERNAME:
428 case ISCSI_PARAM_PASSWORD:
429 case ISCSI_PARAM_USERNAME_IN:
430 case ISCSI_PARAM_PASSWORD_IN:
431 case ISCSI_PARAM_AUTO_SND_TGT_DISABLE:
432 case ISCSI_PARAM_DISCOVERY_SESS:
433 case ISCSI_PARAM_PORTAL_TYPE:
434 case ISCSI_PARAM_CHAP_AUTH_EN:
435 case ISCSI_PARAM_DISCOVERY_LOGOUT_EN:
436 case ISCSI_PARAM_BIDI_CHAP_EN:
437 case ISCSI_PARAM_DISCOVERY_AUTH_OPTIONAL:
438 case ISCSI_PARAM_DEF_TIME2WAIT:
439 case ISCSI_PARAM_DEF_TIME2RETAIN:
440 case ISCSI_PARAM_HDRDGST_EN:
441 case ISCSI_PARAM_DATADGST_EN:
442 case ISCSI_PARAM_INITIAL_R2T_EN:
443 case ISCSI_PARAM_IMM_DATA_EN:
444 case ISCSI_PARAM_PDU_INORDER_EN:
445 case ISCSI_PARAM_DATASEQ_INORDER_EN:
446 case ISCSI_PARAM_MAX_SEGMENT_SIZE:
447 case ISCSI_PARAM_TCP_TIMESTAMP_STAT:
448 case ISCSI_PARAM_TCP_WSF_DISABLE:
449 case ISCSI_PARAM_TCP_NAGLE_DISABLE:
450 case ISCSI_PARAM_TCP_TIMER_SCALE:
451 case ISCSI_PARAM_TCP_TIMESTAMP_EN:
452 case ISCSI_PARAM_TCP_XMIT_WSF:
453 case ISCSI_PARAM_TCP_RECV_WSF:
454 case ISCSI_PARAM_IP_FRAGMENT_DISABLE:
455 case ISCSI_PARAM_IPV4_TOS:
456 case ISCSI_PARAM_IPV6_TC:
457 case ISCSI_PARAM_IPV6_FLOW_LABEL:
458 case ISCSI_PARAM_IS_FW_ASSIGNED_IPV6:
459 case ISCSI_PARAM_KEEPALIVE_TMO:
460 case ISCSI_PARAM_LOCAL_PORT:
461 case ISCSI_PARAM_ISID:
462 case ISCSI_PARAM_TSID:
463 case ISCSI_PARAM_DEF_TASKMGMT_TMO:
464 case ISCSI_PARAM_ERL:
465 case ISCSI_PARAM_STATSN:
466 case ISCSI_PARAM_EXP_STATSN:
467 case ISCSI_PARAM_DISCOVERY_PARENT_IDX:
468 case ISCSI_PARAM_DISCOVERY_PARENT_TYPE:
469 case ISCSI_PARAM_LOCAL_IPADDR:
470 return S_IRUGO;
471 default:
472 return 0;
473 }
474 case ISCSI_NET_PARAM:
475 switch (param) {
476 case ISCSI_NET_PARAM_IPV4_ADDR:
477 case ISCSI_NET_PARAM_IPV4_SUBNET:
478 case ISCSI_NET_PARAM_IPV4_GW:
479 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
480 case ISCSI_NET_PARAM_IFACE_ENABLE:
481 case ISCSI_NET_PARAM_IPV6_LINKLOCAL:
482 case ISCSI_NET_PARAM_IPV6_ADDR:
483 case ISCSI_NET_PARAM_IPV6_ROUTER:
484 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG:
485 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG:
486 case ISCSI_NET_PARAM_VLAN_ID:
487 case ISCSI_NET_PARAM_VLAN_PRIORITY:
488 case ISCSI_NET_PARAM_VLAN_ENABLED:
489 case ISCSI_NET_PARAM_MTU:
490 case ISCSI_NET_PARAM_PORT:
491 case ISCSI_NET_PARAM_IPADDR_STATE:
492 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_STATE:
493 case ISCSI_NET_PARAM_IPV6_ROUTER_STATE:
494 case ISCSI_NET_PARAM_DELAYED_ACK_EN:
495 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE:
496 case ISCSI_NET_PARAM_TCP_WSF_DISABLE:
497 case ISCSI_NET_PARAM_TCP_WSF:
498 case ISCSI_NET_PARAM_TCP_TIMER_SCALE:
499 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN:
500 case ISCSI_NET_PARAM_CACHE_ID:
501 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN:
502 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN:
503 case ISCSI_NET_PARAM_IPV4_TOS_EN:
504 case ISCSI_NET_PARAM_IPV4_TOS:
505 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN:
506 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN:
507 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID:
508 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN:
509 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN:
510 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID:
511 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN:
512 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE:
513 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN:
514 case ISCSI_NET_PARAM_REDIRECT_EN:
515 case ISCSI_NET_PARAM_IPV4_TTL:
516 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN:
517 case ISCSI_NET_PARAM_IPV6_MLD_EN:
518 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL:
519 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS:
520 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT:
521 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO:
522 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME:
523 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO:
524 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT:
525 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU:
526 return S_IRUGO;
527 default:
528 return 0;
529 }
530 case ISCSI_IFACE_PARAM:
531 switch (param) {
532 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO:
533 case ISCSI_IFACE_PARAM_HDRDGST_EN:
534 case ISCSI_IFACE_PARAM_DATADGST_EN:
535 case ISCSI_IFACE_PARAM_IMM_DATA_EN:
536 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN:
537 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN:
538 case ISCSI_IFACE_PARAM_PDU_INORDER_EN:
539 case ISCSI_IFACE_PARAM_ERL:
540 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH:
541 case ISCSI_IFACE_PARAM_FIRST_BURST:
542 case ISCSI_IFACE_PARAM_MAX_R2T:
543 case ISCSI_IFACE_PARAM_MAX_BURST:
544 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN:
545 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN:
546 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL:
547 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN:
548 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN:
549 case ISCSI_IFACE_PARAM_INITIATOR_NAME:
550 return S_IRUGO;
551 default:
552 return 0;
553 }
554 case ISCSI_FLASHNODE_PARAM:
555 switch (param) {
556 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6:
557 case ISCSI_FLASHNODE_PORTAL_TYPE:
558 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE:
559 case ISCSI_FLASHNODE_DISCOVERY_SESS:
560 case ISCSI_FLASHNODE_ENTRY_EN:
561 case ISCSI_FLASHNODE_HDR_DGST_EN:
562 case ISCSI_FLASHNODE_DATA_DGST_EN:
563 case ISCSI_FLASHNODE_IMM_DATA_EN:
564 case ISCSI_FLASHNODE_INITIAL_R2T_EN:
565 case ISCSI_FLASHNODE_DATASEQ_INORDER:
566 case ISCSI_FLASHNODE_PDU_INORDER:
567 case ISCSI_FLASHNODE_CHAP_AUTH_EN:
568 case ISCSI_FLASHNODE_SNACK_REQ_EN:
569 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN:
570 case ISCSI_FLASHNODE_BIDI_CHAP_EN:
571 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL:
572 case ISCSI_FLASHNODE_ERL:
573 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT:
574 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE:
575 case ISCSI_FLASHNODE_TCP_WSF_DISABLE:
576 case ISCSI_FLASHNODE_TCP_TIMER_SCALE:
577 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN:
578 case ISCSI_FLASHNODE_IP_FRAG_DISABLE:
579 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH:
580 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH:
581 case ISCSI_FLASHNODE_FIRST_BURST:
582 case ISCSI_FLASHNODE_DEF_TIME2WAIT:
583 case ISCSI_FLASHNODE_DEF_TIME2RETAIN:
584 case ISCSI_FLASHNODE_MAX_R2T:
585 case ISCSI_FLASHNODE_KEEPALIVE_TMO:
586 case ISCSI_FLASHNODE_ISID:
587 case ISCSI_FLASHNODE_TSID:
588 case ISCSI_FLASHNODE_PORT:
589 case ISCSI_FLASHNODE_MAX_BURST:
590 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO:
591 case ISCSI_FLASHNODE_IPADDR:
592 case ISCSI_FLASHNODE_ALIAS:
593 case ISCSI_FLASHNODE_REDIRECT_IPADDR:
594 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE:
595 case ISCSI_FLASHNODE_LOCAL_PORT:
596 case ISCSI_FLASHNODE_IPV4_TOS:
597 case ISCSI_FLASHNODE_IPV6_TC:
598 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL:
599 case ISCSI_FLASHNODE_NAME:
600 case ISCSI_FLASHNODE_TPGT:
601 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6:
602 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX:
603 case ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE:
604 case ISCSI_FLASHNODE_TCP_XMIT_WSF:
605 case ISCSI_FLASHNODE_TCP_RECV_WSF:
606 case ISCSI_FLASHNODE_CHAP_OUT_IDX:
607 case ISCSI_FLASHNODE_USERNAME:
608 case ISCSI_FLASHNODE_PASSWORD:
609 case ISCSI_FLASHNODE_STATSN:
610 case ISCSI_FLASHNODE_EXP_STATSN:
611 case ISCSI_FLASHNODE_IS_BOOT_TGT:
612 return S_IRUGO;
613 default:
614 return 0;
615 }
616 }
617
618 return 0;
619 }
620
621 /**
622 * qla4xxx_create_chap_list - Create CHAP list from FLASH
623 * @ha: pointer to adapter structure
624 *
625 * Read flash and make a list of CHAP entries, during login when a CHAP entry
626 * is received, it will be checked in this list. If entry exist then the CHAP
627 * entry index is set in the DDB. If CHAP entry does not exist in this list
628 * then a new entry is added in FLASH in CHAP table and the index obtained is
629 * used in the DDB.
630 **/
qla4xxx_create_chap_list(struct scsi_qla_host * ha)631 static void qla4xxx_create_chap_list(struct scsi_qla_host *ha)
632 {
633 int rval = 0;
634 uint8_t *chap_flash_data = NULL;
635 uint32_t offset;
636 dma_addr_t chap_dma;
637 uint32_t chap_size = 0;
638
639 if (is_qla40XX(ha))
640 chap_size = MAX_CHAP_ENTRIES_40XX *
641 sizeof(struct ql4_chap_table);
642 else /* Single region contains CHAP info for both
643 * ports which is divided into half for each port.
644 */
645 chap_size = ha->hw.flt_chap_size / 2;
646
647 chap_flash_data = dma_alloc_coherent(&ha->pdev->dev, chap_size,
648 &chap_dma, GFP_KERNEL);
649 if (!chap_flash_data) {
650 ql4_printk(KERN_ERR, ha, "No memory for chap_flash_data\n");
651 return;
652 }
653
654 if (is_qla40XX(ha)) {
655 offset = FLASH_CHAP_OFFSET;
656 } else {
657 offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2);
658 if (ha->port_num == 1)
659 offset += chap_size;
660 }
661
662 rval = qla4xxx_get_flash(ha, chap_dma, offset, chap_size);
663 if (rval != QLA_SUCCESS)
664 goto exit_chap_list;
665
666 if (ha->chap_list == NULL)
667 ha->chap_list = vmalloc(chap_size);
668 if (ha->chap_list == NULL) {
669 ql4_printk(KERN_ERR, ha, "No memory for ha->chap_list\n");
670 goto exit_chap_list;
671 }
672
673 memset(ha->chap_list, 0, chap_size);
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 strlcpy(chap_rec->username, chap_table->name,
802 ISCSI_CHAP_AUTH_NAME_MAX_LEN);
803 strlcpy(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 int rc = 0;
3653
3654 options = le16_to_cpu(fw_ddb_entry->options);
3655 SET_BITVAL(conn->is_fw_assigned_ipv6, options, BIT_11);
3656 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4))
3657 options |= BIT_8;
3658 else
3659 options &= ~BIT_8;
3660
3661 SET_BITVAL(sess->auto_snd_tgt_disable, options, BIT_6);
3662 SET_BITVAL(sess->discovery_sess, options, BIT_4);
3663 SET_BITVAL(sess->entry_state, options, BIT_3);
3664 fw_ddb_entry->options = cpu_to_le16(options);
3665
3666 options = le16_to_cpu(fw_ddb_entry->iscsi_options);
3667 SET_BITVAL(conn->hdrdgst_en, options, BIT_13);
3668 SET_BITVAL(conn->datadgst_en, options, BIT_12);
3669 SET_BITVAL(sess->imm_data_en, options, BIT_11);
3670 SET_BITVAL(sess->initial_r2t_en, options, BIT_10);
3671 SET_BITVAL(sess->dataseq_inorder_en, options, BIT_9);
3672 SET_BITVAL(sess->pdu_inorder_en, options, BIT_8);
3673 SET_BITVAL(sess->chap_auth_en, options, BIT_7);
3674 SET_BITVAL(conn->snack_req_en, options, BIT_6);
3675 SET_BITVAL(sess->discovery_logout_en, options, BIT_5);
3676 SET_BITVAL(sess->bidi_chap_en, options, BIT_4);
3677 SET_BITVAL(sess->discovery_auth_optional, options, BIT_3);
3678 SET_BITVAL(sess->erl & BIT_1, options, BIT_1);
3679 SET_BITVAL(sess->erl & BIT_0, options, BIT_0);
3680 fw_ddb_entry->iscsi_options = cpu_to_le16(options);
3681
3682 options = le16_to_cpu(fw_ddb_entry->tcp_options);
3683 SET_BITVAL(conn->tcp_timestamp_stat, options, BIT_6);
3684 SET_BITVAL(conn->tcp_nagle_disable, options, BIT_5);
3685 SET_BITVAL(conn->tcp_wsf_disable, options, BIT_4);
3686 SET_BITVAL(conn->tcp_timer_scale & BIT_2, options, BIT_3);
3687 SET_BITVAL(conn->tcp_timer_scale & BIT_1, options, BIT_2);
3688 SET_BITVAL(conn->tcp_timer_scale & BIT_0, options, BIT_1);
3689 SET_BITVAL(conn->tcp_timestamp_en, options, BIT_0);
3690 fw_ddb_entry->tcp_options = cpu_to_le16(options);
3691
3692 options = le16_to_cpu(fw_ddb_entry->ip_options);
3693 SET_BITVAL(conn->fragment_disable, options, BIT_4);
3694 fw_ddb_entry->ip_options = cpu_to_le16(options);
3695
3696 fw_ddb_entry->iscsi_max_outsnd_r2t = cpu_to_le16(sess->max_r2t);
3697 fw_ddb_entry->iscsi_max_rcv_data_seg_len =
3698 cpu_to_le16(conn->max_recv_dlength / BYTE_UNITS);
3699 fw_ddb_entry->iscsi_max_snd_data_seg_len =
3700 cpu_to_le16(conn->max_xmit_dlength / BYTE_UNITS);
3701 fw_ddb_entry->iscsi_first_burst_len =
3702 cpu_to_le16(sess->first_burst / BYTE_UNITS);
3703 fw_ddb_entry->iscsi_max_burst_len = cpu_to_le16(sess->max_burst /
3704 BYTE_UNITS);
3705 fw_ddb_entry->iscsi_def_time2wait = cpu_to_le16(sess->time2wait);
3706 fw_ddb_entry->iscsi_def_time2retain = cpu_to_le16(sess->time2retain);
3707 fw_ddb_entry->tgt_portal_grp = cpu_to_le16(sess->tpgt);
3708 fw_ddb_entry->mss = cpu_to_le16(conn->max_segment_size);
3709 fw_ddb_entry->tcp_xmt_wsf = (uint8_t) cpu_to_le32(conn->tcp_xmit_wsf);
3710 fw_ddb_entry->tcp_rcv_wsf = (uint8_t) cpu_to_le32(conn->tcp_recv_wsf);
3711 fw_ddb_entry->ipv6_flow_lbl = cpu_to_le16(conn->ipv6_flow_label);
3712 fw_ddb_entry->ka_timeout = cpu_to_le16(conn->keepalive_timeout);
3713 fw_ddb_entry->lcl_port = cpu_to_le16(conn->local_port);
3714 fw_ddb_entry->stat_sn = cpu_to_le32(conn->statsn);
3715 fw_ddb_entry->exp_stat_sn = cpu_to_le32(conn->exp_statsn);
3716 fw_ddb_entry->ddb_link = cpu_to_le16(sess->discovery_parent_idx);
3717 fw_ddb_entry->chap_tbl_idx = cpu_to_le16(sess->chap_out_idx);
3718 fw_ddb_entry->tsid = cpu_to_le16(sess->tsid);
3719 fw_ddb_entry->port = cpu_to_le16(conn->port);
3720 fw_ddb_entry->def_timeout =
3721 cpu_to_le16(sess->default_taskmgmt_timeout);
3722
3723 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4))
3724 fw_ddb_entry->ipv4_tos = conn->ipv6_traffic_class;
3725 else
3726 fw_ddb_entry->ipv4_tos = conn->ipv4_tos;
3727
3728 if (conn->ipaddress)
3729 memcpy(fw_ddb_entry->ip_addr, conn->ipaddress,
3730 sizeof(fw_ddb_entry->ip_addr));
3731
3732 if (conn->redirect_ipaddr)
3733 memcpy(fw_ddb_entry->tgt_addr, conn->redirect_ipaddr,
3734 sizeof(fw_ddb_entry->tgt_addr));
3735
3736 if (conn->link_local_ipv6_addr)
3737 memcpy(fw_ddb_entry->link_local_ipv6_addr,
3738 conn->link_local_ipv6_addr,
3739 sizeof(fw_ddb_entry->link_local_ipv6_addr));
3740
3741 if (sess->targetname)
3742 memcpy(fw_ddb_entry->iscsi_name, sess->targetname,
3743 sizeof(fw_ddb_entry->iscsi_name));
3744
3745 if (sess->targetalias)
3746 memcpy(fw_ddb_entry->iscsi_alias, sess->targetalias,
3747 sizeof(fw_ddb_entry->iscsi_alias));
3748
3749 COPY_ISID(fw_ddb_entry->isid, sess->isid);
3750
3751 return rc;
3752 }
3753
qla4xxx_copy_to_sess_conn_params(struct iscsi_conn * conn,struct iscsi_session * sess,struct dev_db_entry * fw_ddb_entry)3754 static void qla4xxx_copy_to_sess_conn_params(struct iscsi_conn *conn,
3755 struct iscsi_session *sess,
3756 struct dev_db_entry *fw_ddb_entry)
3757 {
3758 unsigned long options = 0;
3759 uint16_t ddb_link;
3760 uint16_t disc_parent;
3761 char ip_addr[DDB_IPADDR_LEN];
3762
3763 options = le16_to_cpu(fw_ddb_entry->options);
3764 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options);
3765 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE,
3766 &options);
3767 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options);
3768
3769 options = le16_to_cpu(fw_ddb_entry->iscsi_options);
3770 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options);
3771 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options);
3772 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options);
3773 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options);
3774 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER,
3775 &options);
3776 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options);
3777 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options);
3778 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN,
3779 &options);
3780 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options);
3781 sess->discovery_auth_optional =
3782 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options);
3783 if (test_bit(ISCSIOPT_ERL1, &options))
3784 sess->erl |= BIT_1;
3785 if (test_bit(ISCSIOPT_ERL0, &options))
3786 sess->erl |= BIT_0;
3787
3788 options = le16_to_cpu(fw_ddb_entry->tcp_options);
3789 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options);
3790 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options);
3791 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options);
3792 if (test_bit(TCPOPT_TIMER_SCALE3, &options))
3793 conn->tcp_timer_scale |= BIT_3;
3794 if (test_bit(TCPOPT_TIMER_SCALE2, &options))
3795 conn->tcp_timer_scale |= BIT_2;
3796 if (test_bit(TCPOPT_TIMER_SCALE1, &options))
3797 conn->tcp_timer_scale |= BIT_1;
3798
3799 conn->tcp_timer_scale >>= 1;
3800 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options);
3801
3802 options = le16_to_cpu(fw_ddb_entry->ip_options);
3803 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options);
3804
3805 conn->max_recv_dlength = BYTE_UNITS *
3806 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len);
3807 conn->max_xmit_dlength = BYTE_UNITS *
3808 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len);
3809 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t);
3810 sess->first_burst = BYTE_UNITS *
3811 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len);
3812 sess->max_burst = BYTE_UNITS *
3813 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len);
3814 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
3815 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain);
3816 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
3817 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss);
3818 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf;
3819 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf;
3820 conn->ipv4_tos = fw_ddb_entry->ipv4_tos;
3821 conn->keepalive_tmo = le16_to_cpu(fw_ddb_entry->ka_timeout);
3822 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port);
3823 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn);
3824 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn);
3825 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid);
3826 COPY_ISID(sess->isid, fw_ddb_entry->isid);
3827
3828 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
3829 if (ddb_link == DDB_ISNS)
3830 disc_parent = ISCSI_DISC_PARENT_ISNS;
3831 else if (ddb_link == DDB_NO_LINK)
3832 disc_parent = ISCSI_DISC_PARENT_UNKNOWN;
3833 else if (ddb_link < MAX_DDB_ENTRIES)
3834 disc_parent = ISCSI_DISC_PARENT_SENDTGT;
3835 else
3836 disc_parent = ISCSI_DISC_PARENT_UNKNOWN;
3837
3838 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_DISCOVERY_PARENT_TYPE,
3839 iscsi_get_discovery_parent_name(disc_parent), 0);
3840
3841 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_TARGET_ALIAS,
3842 (char *)fw_ddb_entry->iscsi_alias, 0);
3843
3844 options = le16_to_cpu(fw_ddb_entry->options);
3845 if (options & DDB_OPT_IPV6_DEVICE) {
3846 memset(ip_addr, 0, sizeof(ip_addr));
3847 sprintf(ip_addr, "%pI6", fw_ddb_entry->link_local_ipv6_addr);
3848 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_LOCAL_IPADDR,
3849 (char *)ip_addr, 0);
3850 }
3851 }
3852
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)3853 static void qla4xxx_copy_fwddb_param(struct scsi_qla_host *ha,
3854 struct dev_db_entry *fw_ddb_entry,
3855 struct iscsi_cls_session *cls_sess,
3856 struct iscsi_cls_conn *cls_conn)
3857 {
3858 int buflen = 0;
3859 struct iscsi_session *sess;
3860 struct ddb_entry *ddb_entry;
3861 struct ql4_chap_table chap_tbl;
3862 struct iscsi_conn *conn;
3863 char ip_addr[DDB_IPADDR_LEN];
3864 uint16_t options = 0;
3865
3866 sess = cls_sess->dd_data;
3867 ddb_entry = sess->dd_data;
3868 conn = cls_conn->dd_data;
3869 memset(&chap_tbl, 0, sizeof(chap_tbl));
3870
3871 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
3872
3873 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry);
3874
3875 sess->def_taskmgmt_tmo = le16_to_cpu(fw_ddb_entry->def_timeout);
3876 conn->persistent_port = le16_to_cpu(fw_ddb_entry->port);
3877
3878 memset(ip_addr, 0, sizeof(ip_addr));
3879 options = le16_to_cpu(fw_ddb_entry->options);
3880 if (options & DDB_OPT_IPV6_DEVICE) {
3881 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv6", 4);
3882
3883 memset(ip_addr, 0, sizeof(ip_addr));
3884 sprintf(ip_addr, "%pI6", fw_ddb_entry->ip_addr);
3885 } else {
3886 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv4", 4);
3887 sprintf(ip_addr, "%pI4", fw_ddb_entry->ip_addr);
3888 }
3889
3890 iscsi_set_param(cls_conn, ISCSI_PARAM_PERSISTENT_ADDRESS,
3891 (char *)ip_addr, buflen);
3892 iscsi_set_param(cls_conn, ISCSI_PARAM_TARGET_NAME,
3893 (char *)fw_ddb_entry->iscsi_name, buflen);
3894 iscsi_set_param(cls_conn, ISCSI_PARAM_INITIATOR_NAME,
3895 (char *)ha->name_string, buflen);
3896
3897 if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) {
3898 if (!qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name,
3899 chap_tbl.secret,
3900 ddb_entry->chap_tbl_idx)) {
3901 iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME,
3902 (char *)chap_tbl.name,
3903 strlen((char *)chap_tbl.name));
3904 iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD,
3905 (char *)chap_tbl.secret,
3906 chap_tbl.secret_len);
3907 }
3908 }
3909 }
3910
qla4xxx_update_session_conn_fwddb_param(struct scsi_qla_host * ha,struct ddb_entry * ddb_entry)3911 void qla4xxx_update_session_conn_fwddb_param(struct scsi_qla_host *ha,
3912 struct ddb_entry *ddb_entry)
3913 {
3914 struct iscsi_cls_session *cls_sess;
3915 struct iscsi_cls_conn *cls_conn;
3916 uint32_t ddb_state;
3917 dma_addr_t fw_ddb_entry_dma;
3918 struct dev_db_entry *fw_ddb_entry;
3919
3920 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3921 &fw_ddb_entry_dma, GFP_KERNEL);
3922 if (!fw_ddb_entry) {
3923 ql4_printk(KERN_ERR, ha,
3924 "%s: Unable to allocate dma buffer\n", __func__);
3925 goto exit_session_conn_fwddb_param;
3926 }
3927
3928 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry,
3929 fw_ddb_entry_dma, NULL, NULL, &ddb_state,
3930 NULL, NULL, NULL) == QLA_ERROR) {
3931 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
3932 "get_ddb_entry for fw_ddb_index %d\n",
3933 ha->host_no, __func__,
3934 ddb_entry->fw_ddb_index));
3935 goto exit_session_conn_fwddb_param;
3936 }
3937
3938 cls_sess = ddb_entry->sess;
3939
3940 cls_conn = ddb_entry->conn;
3941
3942 /* Update params */
3943 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn);
3944
3945 exit_session_conn_fwddb_param:
3946 if (fw_ddb_entry)
3947 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3948 fw_ddb_entry, fw_ddb_entry_dma);
3949 }
3950
qla4xxx_update_session_conn_param(struct scsi_qla_host * ha,struct ddb_entry * ddb_entry)3951 void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha,
3952 struct ddb_entry *ddb_entry)
3953 {
3954 struct iscsi_cls_session *cls_sess;
3955 struct iscsi_cls_conn *cls_conn;
3956 struct iscsi_session *sess;
3957 struct iscsi_conn *conn;
3958 uint32_t ddb_state;
3959 dma_addr_t fw_ddb_entry_dma;
3960 struct dev_db_entry *fw_ddb_entry;
3961
3962 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3963 &fw_ddb_entry_dma, GFP_KERNEL);
3964 if (!fw_ddb_entry) {
3965 ql4_printk(KERN_ERR, ha,
3966 "%s: Unable to allocate dma buffer\n", __func__);
3967 goto exit_session_conn_param;
3968 }
3969
3970 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry,
3971 fw_ddb_entry_dma, NULL, NULL, &ddb_state,
3972 NULL, NULL, NULL) == QLA_ERROR) {
3973 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
3974 "get_ddb_entry for fw_ddb_index %d\n",
3975 ha->host_no, __func__,
3976 ddb_entry->fw_ddb_index));
3977 goto exit_session_conn_param;
3978 }
3979
3980 cls_sess = ddb_entry->sess;
3981 sess = cls_sess->dd_data;
3982
3983 cls_conn = ddb_entry->conn;
3984 conn = cls_conn->dd_data;
3985
3986 /* Update timers after login */
3987 ddb_entry->default_relogin_timeout =
3988 (le16_to_cpu(fw_ddb_entry->def_timeout) > LOGIN_TOV) &&
3989 (le16_to_cpu(fw_ddb_entry->def_timeout) < LOGIN_TOV * 10) ?
3990 le16_to_cpu(fw_ddb_entry->def_timeout) : LOGIN_TOV;
3991 ddb_entry->default_time2wait =
3992 le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
3993
3994 /* Update params */
3995 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
3996 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry);
3997
3998 memcpy(sess->initiatorname, ha->name_string,
3999 min(sizeof(ha->name_string), sizeof(sess->initiatorname)));
4000
4001 exit_session_conn_param:
4002 if (fw_ddb_entry)
4003 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
4004 fw_ddb_entry, fw_ddb_entry_dma);
4005 }
4006
4007 /*
4008 * Timer routines
4009 */
4010 static void qla4xxx_timer(struct timer_list *t);
4011
qla4xxx_start_timer(struct scsi_qla_host * ha,unsigned long interval)4012 static void qla4xxx_start_timer(struct scsi_qla_host *ha,
4013 unsigned long interval)
4014 {
4015 DEBUG(printk("scsi: %s: Starting timer thread for adapter %d\n",
4016 __func__, ha->host->host_no));
4017 timer_setup(&ha->timer, qla4xxx_timer, 0);
4018 ha->timer.expires = jiffies + interval * HZ;
4019 add_timer(&ha->timer);
4020 ha->timer_active = 1;
4021 }
4022
qla4xxx_stop_timer(struct scsi_qla_host * ha)4023 static void qla4xxx_stop_timer(struct scsi_qla_host *ha)
4024 {
4025 del_timer_sync(&ha->timer);
4026 ha->timer_active = 0;
4027 }
4028
4029 /***
4030 * qla4xxx_mark_device_missing - blocks the session
4031 * @cls_session: Pointer to the session to be blocked
4032 * @ddb_entry: Pointer to device database entry
4033 *
4034 * This routine marks a device missing and close connection.
4035 **/
qla4xxx_mark_device_missing(struct iscsi_cls_session * cls_session)4036 void qla4xxx_mark_device_missing(struct iscsi_cls_session *cls_session)
4037 {
4038 iscsi_block_session(cls_session);
4039 }
4040
4041 /**
4042 * qla4xxx_mark_all_devices_missing - mark all devices as missing.
4043 * @ha: Pointer to host adapter structure.
4044 *
4045 * This routine marks a device missing and resets the relogin retry count.
4046 **/
qla4xxx_mark_all_devices_missing(struct scsi_qla_host * ha)4047 void qla4xxx_mark_all_devices_missing(struct scsi_qla_host *ha)
4048 {
4049 iscsi_host_for_each_session(ha->host, qla4xxx_mark_device_missing);
4050 }
4051
qla4xxx_get_new_srb(struct scsi_qla_host * ha,struct ddb_entry * ddb_entry,struct scsi_cmnd * cmd)4052 static struct srb* qla4xxx_get_new_srb(struct scsi_qla_host *ha,
4053 struct ddb_entry *ddb_entry,
4054 struct scsi_cmnd *cmd)
4055 {
4056 struct srb *srb;
4057
4058 srb = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
4059 if (!srb)
4060 return srb;
4061
4062 kref_init(&srb->srb_ref);
4063 srb->ha = ha;
4064 srb->ddb = ddb_entry;
4065 srb->cmd = cmd;
4066 srb->flags = 0;
4067 CMD_SP(cmd) = (void *)srb;
4068
4069 return srb;
4070 }
4071
qla4xxx_srb_free_dma(struct scsi_qla_host * ha,struct srb * srb)4072 static void qla4xxx_srb_free_dma(struct scsi_qla_host *ha, struct srb *srb)
4073 {
4074 struct scsi_cmnd *cmd = srb->cmd;
4075
4076 if (srb->flags & SRB_DMA_VALID) {
4077 scsi_dma_unmap(cmd);
4078 srb->flags &= ~SRB_DMA_VALID;
4079 }
4080 CMD_SP(cmd) = NULL;
4081 }
4082
qla4xxx_srb_compl(struct kref * ref)4083 void qla4xxx_srb_compl(struct kref *ref)
4084 {
4085 struct srb *srb = container_of(ref, struct srb, srb_ref);
4086 struct scsi_cmnd *cmd = srb->cmd;
4087 struct scsi_qla_host *ha = srb->ha;
4088
4089 qla4xxx_srb_free_dma(ha, srb);
4090
4091 mempool_free(srb, ha->srb_mempool);
4092
4093 cmd->scsi_done(cmd);
4094 }
4095
4096 /**
4097 * qla4xxx_queuecommand - scsi layer issues scsi command to driver.
4098 * @host: scsi host
4099 * @cmd: Pointer to Linux's SCSI command structure
4100 *
4101 * Remarks:
4102 * This routine is invoked by Linux to send a SCSI command to the driver.
4103 * The mid-level driver tries to ensure that queuecommand never gets
4104 * invoked concurrently with itself or the interrupt handler (although
4105 * the interrupt handler may call this routine as part of request-
4106 * completion handling). Unfortunely, it sometimes calls the scheduler
4107 * in interrupt context which is a big NO! NO!.
4108 **/
qla4xxx_queuecommand(struct Scsi_Host * host,struct scsi_cmnd * cmd)4109 static int qla4xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
4110 {
4111 struct scsi_qla_host *ha = to_qla_host(host);
4112 struct ddb_entry *ddb_entry = cmd->device->hostdata;
4113 struct iscsi_cls_session *sess = ddb_entry->sess;
4114 struct srb *srb;
4115 int rval;
4116
4117 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
4118 if (test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags))
4119 cmd->result = DID_NO_CONNECT << 16;
4120 else
4121 cmd->result = DID_REQUEUE << 16;
4122 goto qc_fail_command;
4123 }
4124
4125 if (!sess) {
4126 cmd->result = DID_IMM_RETRY << 16;
4127 goto qc_fail_command;
4128 }
4129
4130 rval = iscsi_session_chkready(sess);
4131 if (rval) {
4132 cmd->result = rval;
4133 goto qc_fail_command;
4134 }
4135
4136 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
4137 test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) ||
4138 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
4139 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) ||
4140 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) ||
4141 !test_bit(AF_ONLINE, &ha->flags) ||
4142 !test_bit(AF_LINK_UP, &ha->flags) ||
4143 test_bit(AF_LOOPBACK, &ha->flags) ||
4144 test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags) ||
4145 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags) ||
4146 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))
4147 goto qc_host_busy;
4148
4149 srb = qla4xxx_get_new_srb(ha, ddb_entry, cmd);
4150 if (!srb)
4151 goto qc_host_busy;
4152
4153 rval = qla4xxx_send_command_to_isp(ha, srb);
4154 if (rval != QLA_SUCCESS)
4155 goto qc_host_busy_free_sp;
4156
4157 return 0;
4158
4159 qc_host_busy_free_sp:
4160 qla4xxx_srb_free_dma(ha, srb);
4161 mempool_free(srb, ha->srb_mempool);
4162
4163 qc_host_busy:
4164 return SCSI_MLQUEUE_HOST_BUSY;
4165
4166 qc_fail_command:
4167 cmd->scsi_done(cmd);
4168
4169 return 0;
4170 }
4171
4172 /**
4173 * qla4xxx_mem_free - frees memory allocated to adapter
4174 * @ha: Pointer to host adapter structure.
4175 *
4176 * Frees memory previously allocated by qla4xxx_mem_alloc
4177 **/
qla4xxx_mem_free(struct scsi_qla_host * ha)4178 static void qla4xxx_mem_free(struct scsi_qla_host *ha)
4179 {
4180 if (ha->queues)
4181 dma_free_coherent(&ha->pdev->dev, ha->queues_len, ha->queues,
4182 ha->queues_dma);
4183
4184 vfree(ha->fw_dump);
4185
4186 ha->queues_len = 0;
4187 ha->queues = NULL;
4188 ha->queues_dma = 0;
4189 ha->request_ring = NULL;
4190 ha->request_dma = 0;
4191 ha->response_ring = NULL;
4192 ha->response_dma = 0;
4193 ha->shadow_regs = NULL;
4194 ha->shadow_regs_dma = 0;
4195 ha->fw_dump = NULL;
4196 ha->fw_dump_size = 0;
4197
4198 /* Free srb pool. */
4199 mempool_destroy(ha->srb_mempool);
4200 ha->srb_mempool = NULL;
4201
4202 dma_pool_destroy(ha->chap_dma_pool);
4203
4204 vfree(ha->chap_list);
4205 ha->chap_list = NULL;
4206
4207 dma_pool_destroy(ha->fw_ddb_dma_pool);
4208
4209 /* release io space registers */
4210 if (is_qla8022(ha)) {
4211 if (ha->nx_pcibase)
4212 iounmap(
4213 (struct device_reg_82xx __iomem *)ha->nx_pcibase);
4214 } else if (is_qla8032(ha) || is_qla8042(ha)) {
4215 if (ha->nx_pcibase)
4216 iounmap(
4217 (struct device_reg_83xx __iomem *)ha->nx_pcibase);
4218 } else if (ha->reg) {
4219 iounmap(ha->reg);
4220 }
4221
4222 vfree(ha->reset_tmplt.buff);
4223
4224 pci_release_regions(ha->pdev);
4225 }
4226
4227 /**
4228 * qla4xxx_mem_alloc - allocates memory for use by adapter.
4229 * @ha: Pointer to host adapter structure
4230 *
4231 * Allocates DMA memory for request and response queues. Also allocates memory
4232 * for srbs.
4233 **/
qla4xxx_mem_alloc(struct scsi_qla_host * ha)4234 static int qla4xxx_mem_alloc(struct scsi_qla_host *ha)
4235 {
4236 unsigned long align;
4237
4238 /* Allocate contiguous block of DMA memory for queues. */
4239 ha->queues_len = ((REQUEST_QUEUE_DEPTH * QUEUE_SIZE) +
4240 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE) +
4241 sizeof(struct shadow_regs) +
4242 MEM_ALIGN_VALUE +
4243 (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
4244 ha->queues = dma_alloc_coherent(&ha->pdev->dev, ha->queues_len,
4245 &ha->queues_dma, GFP_KERNEL);
4246 if (ha->queues == NULL) {
4247 ql4_printk(KERN_WARNING, ha,
4248 "Memory Allocation failed - queues.\n");
4249
4250 goto mem_alloc_error_exit;
4251 }
4252
4253 /*
4254 * As per RISC alignment requirements -- the bus-address must be a
4255 * multiple of the request-ring size (in bytes).
4256 */
4257 align = 0;
4258 if ((unsigned long)ha->queues_dma & (MEM_ALIGN_VALUE - 1))
4259 align = MEM_ALIGN_VALUE - ((unsigned long)ha->queues_dma &
4260 (MEM_ALIGN_VALUE - 1));
4261
4262 /* Update request and response queue pointers. */
4263 ha->request_dma = ha->queues_dma + align;
4264 ha->request_ring = (struct queue_entry *) (ha->queues + align);
4265 ha->response_dma = ha->queues_dma + align +
4266 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE);
4267 ha->response_ring = (struct queue_entry *) (ha->queues + align +
4268 (REQUEST_QUEUE_DEPTH *
4269 QUEUE_SIZE));
4270 ha->shadow_regs_dma = ha->queues_dma + align +
4271 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE) +
4272 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE);
4273 ha->shadow_regs = (struct shadow_regs *) (ha->queues + align +
4274 (REQUEST_QUEUE_DEPTH *
4275 QUEUE_SIZE) +
4276 (RESPONSE_QUEUE_DEPTH *
4277 QUEUE_SIZE));
4278
4279 /* Allocate memory for srb pool. */
4280 ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab,
4281 mempool_free_slab, srb_cachep);
4282 if (ha->srb_mempool == NULL) {
4283 ql4_printk(KERN_WARNING, ha,
4284 "Memory Allocation failed - SRB Pool.\n");
4285
4286 goto mem_alloc_error_exit;
4287 }
4288
4289 ha->chap_dma_pool = dma_pool_create("ql4_chap", &ha->pdev->dev,
4290 CHAP_DMA_BLOCK_SIZE, 8, 0);
4291
4292 if (ha->chap_dma_pool == NULL) {
4293 ql4_printk(KERN_WARNING, ha,
4294 "%s: chap_dma_pool allocation failed..\n", __func__);
4295 goto mem_alloc_error_exit;
4296 }
4297
4298 ha->fw_ddb_dma_pool = dma_pool_create("ql4_fw_ddb", &ha->pdev->dev,
4299 DDB_DMA_BLOCK_SIZE, 8, 0);
4300
4301 if (ha->fw_ddb_dma_pool == NULL) {
4302 ql4_printk(KERN_WARNING, ha,
4303 "%s: fw_ddb_dma_pool allocation failed..\n",
4304 __func__);
4305 goto mem_alloc_error_exit;
4306 }
4307
4308 return QLA_SUCCESS;
4309
4310 mem_alloc_error_exit:
4311 return QLA_ERROR;
4312 }
4313
4314 /**
4315 * qla4_8xxx_check_temp - Check the ISP82XX temperature.
4316 * @ha: adapter block pointer.
4317 *
4318 * Note: The caller should not hold the idc lock.
4319 **/
qla4_8xxx_check_temp(struct scsi_qla_host * ha)4320 static int qla4_8xxx_check_temp(struct scsi_qla_host *ha)
4321 {
4322 uint32_t temp, temp_state, temp_val;
4323 int status = QLA_SUCCESS;
4324
4325 temp = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_TEMP_STATE);
4326
4327 temp_state = qla82xx_get_temp_state(temp);
4328 temp_val = qla82xx_get_temp_val(temp);
4329
4330 if (temp_state == QLA82XX_TEMP_PANIC) {
4331 ql4_printk(KERN_WARNING, ha, "Device temperature %d degrees C"
4332 " exceeds maximum allowed. Hardware has been shut"
4333 " down.\n", temp_val);
4334 status = QLA_ERROR;
4335 } else if (temp_state == QLA82XX_TEMP_WARN) {
4336 if (ha->temperature == QLA82XX_TEMP_NORMAL)
4337 ql4_printk(KERN_WARNING, ha, "Device temperature %d"
4338 " degrees C exceeds operating range."
4339 " Immediate action needed.\n", temp_val);
4340 } else {
4341 if (ha->temperature == QLA82XX_TEMP_WARN)
4342 ql4_printk(KERN_INFO, ha, "Device temperature is"
4343 " now %d degrees C in normal range.\n",
4344 temp_val);
4345 }
4346 ha->temperature = temp_state;
4347 return status;
4348 }
4349
4350 /**
4351 * qla4_8xxx_check_fw_alive - Check firmware health
4352 * @ha: Pointer to host adapter structure.
4353 *
4354 * Context: Interrupt
4355 **/
qla4_8xxx_check_fw_alive(struct scsi_qla_host * ha)4356 static int qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha)
4357 {
4358 uint32_t fw_heartbeat_counter;
4359 int status = QLA_SUCCESS;
4360
4361 fw_heartbeat_counter = qla4_8xxx_rd_direct(ha,
4362 QLA8XXX_PEG_ALIVE_COUNTER);
4363 /* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */
4364 if (fw_heartbeat_counter == 0xffffffff) {
4365 DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Device in frozen "
4366 "state, QLA82XX_PEG_ALIVE_COUNTER is 0xffffffff\n",
4367 ha->host_no, __func__));
4368 return status;
4369 }
4370
4371 if (ha->fw_heartbeat_counter == fw_heartbeat_counter) {
4372 ha->seconds_since_last_heartbeat++;
4373 /* FW not alive after 2 seconds */
4374 if (ha->seconds_since_last_heartbeat == 2) {
4375 ha->seconds_since_last_heartbeat = 0;
4376 qla4_8xxx_dump_peg_reg(ha);
4377 status = QLA_ERROR;
4378 }
4379 } else
4380 ha->seconds_since_last_heartbeat = 0;
4381
4382 ha->fw_heartbeat_counter = fw_heartbeat_counter;
4383 return status;
4384 }
4385
qla4_8xxx_process_fw_error(struct scsi_qla_host * ha)4386 static void qla4_8xxx_process_fw_error(struct scsi_qla_host *ha)
4387 {
4388 uint32_t halt_status;
4389 int halt_status_unrecoverable = 0;
4390
4391 halt_status = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_HALT_STATUS1);
4392
4393 if (is_qla8022(ha)) {
4394 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
4395 __func__);
4396 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
4397 CRB_NIU_XG_PAUSE_CTL_P0 |
4398 CRB_NIU_XG_PAUSE_CTL_P1);
4399
4400 if (QLA82XX_FWERROR_CODE(halt_status) == 0x67)
4401 ql4_printk(KERN_ERR, ha, "%s: Firmware aborted with error code 0x00006700. Device is being reset\n",
4402 __func__);
4403 if (halt_status & HALT_STATUS_UNRECOVERABLE)
4404 halt_status_unrecoverable = 1;
4405 } else if (is_qla8032(ha) || is_qla8042(ha)) {
4406 if (halt_status & QLA83XX_HALT_STATUS_FW_RESET)
4407 ql4_printk(KERN_ERR, ha, "%s: Firmware error detected device is being reset\n",
4408 __func__);
4409 else if (halt_status & QLA83XX_HALT_STATUS_UNRECOVERABLE)
4410 halt_status_unrecoverable = 1;
4411 }
4412
4413 /*
4414 * Since we cannot change dev_state in interrupt context,
4415 * set appropriate DPC flag then wakeup DPC
4416 */
4417 if (halt_status_unrecoverable) {
4418 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags);
4419 } else {
4420 ql4_printk(KERN_INFO, ha, "%s: detect abort needed!\n",
4421 __func__);
4422 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4423 }
4424 qla4xxx_mailbox_premature_completion(ha);
4425 qla4xxx_wake_dpc(ha);
4426 }
4427
4428 /**
4429 * qla4_8xxx_watchdog - Poll dev state
4430 * @ha: Pointer to host adapter structure.
4431 *
4432 * Context: Interrupt
4433 **/
qla4_8xxx_watchdog(struct scsi_qla_host * ha)4434 void qla4_8xxx_watchdog(struct scsi_qla_host *ha)
4435 {
4436 uint32_t dev_state;
4437 uint32_t idc_ctrl;
4438
4439 if (is_qla8032(ha) &&
4440 (qla4_83xx_is_detached(ha) == QLA_SUCCESS))
4441 WARN_ONCE(1, "%s: iSCSI function %d marked invisible\n",
4442 __func__, ha->func_num);
4443
4444 /* don't poll if reset is going on */
4445 if (!(test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) ||
4446 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
4447 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags))) {
4448 dev_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE);
4449
4450 if (qla4_8xxx_check_temp(ha)) {
4451 if (is_qla8022(ha)) {
4452 ql4_printk(KERN_INFO, ha, "disabling pause transmit on port 0 & 1.\n");
4453 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
4454 CRB_NIU_XG_PAUSE_CTL_P0 |
4455 CRB_NIU_XG_PAUSE_CTL_P1);
4456 }
4457 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags);
4458 qla4xxx_wake_dpc(ha);
4459 } else if (dev_state == QLA8XXX_DEV_NEED_RESET &&
4460 !test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
4461
4462 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED RESET!\n",
4463 __func__);
4464
4465 if (is_qla8032(ha) || is_qla8042(ha)) {
4466 idc_ctrl = qla4_83xx_rd_reg(ha,
4467 QLA83XX_IDC_DRV_CTRL);
4468 if (!(idc_ctrl & GRACEFUL_RESET_BIT1)) {
4469 ql4_printk(KERN_INFO, ha, "%s: Graceful reset bit is not set\n",
4470 __func__);
4471 qla4xxx_mailbox_premature_completion(
4472 ha);
4473 }
4474 }
4475
4476 if ((is_qla8032(ha) || is_qla8042(ha)) ||
4477 (is_qla8022(ha) && !ql4xdontresethba)) {
4478 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4479 qla4xxx_wake_dpc(ha);
4480 }
4481 } else if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT &&
4482 !test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) {
4483 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED QUIES!\n",
4484 __func__);
4485 set_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags);
4486 qla4xxx_wake_dpc(ha);
4487 } else {
4488 /* Check firmware health */
4489 if (qla4_8xxx_check_fw_alive(ha))
4490 qla4_8xxx_process_fw_error(ha);
4491 }
4492 }
4493 }
4494
qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session * cls_sess)4495 static void qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)
4496 {
4497 struct iscsi_session *sess;
4498 struct ddb_entry *ddb_entry;
4499 struct scsi_qla_host *ha;
4500
4501 sess = cls_sess->dd_data;
4502 ddb_entry = sess->dd_data;
4503 ha = ddb_entry->ha;
4504
4505 if (!(ddb_entry->ddb_type == FLASH_DDB))
4506 return;
4507
4508 if (adapter_up(ha) && !test_bit(DF_RELOGIN, &ddb_entry->flags) &&
4509 !iscsi_is_session_online(cls_sess)) {
4510 if (atomic_read(&ddb_entry->retry_relogin_timer) !=
4511 INVALID_ENTRY) {
4512 if (atomic_read(&ddb_entry->retry_relogin_timer) ==
4513 0) {
4514 atomic_set(&ddb_entry->retry_relogin_timer,
4515 INVALID_ENTRY);
4516 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
4517 set_bit(DF_RELOGIN, &ddb_entry->flags);
4518 DEBUG2(ql4_printk(KERN_INFO, ha,
4519 "%s: index [%d] login device\n",
4520 __func__, ddb_entry->fw_ddb_index));
4521 } else
4522 atomic_dec(&ddb_entry->retry_relogin_timer);
4523 }
4524 }
4525
4526 /* Wait for relogin to timeout */
4527 if (atomic_read(&ddb_entry->relogin_timer) &&
4528 (atomic_dec_and_test(&ddb_entry->relogin_timer) != 0)) {
4529 /*
4530 * If the relogin times out and the device is
4531 * still NOT ONLINE then try and relogin again.
4532 */
4533 if (!iscsi_is_session_online(cls_sess)) {
4534 /* Reset retry relogin timer */
4535 atomic_inc(&ddb_entry->relogin_retry_count);
4536 DEBUG2(ql4_printk(KERN_INFO, ha,
4537 "%s: index[%d] relogin timed out-retrying"
4538 " relogin (%d), retry (%d)\n", __func__,
4539 ddb_entry->fw_ddb_index,
4540 atomic_read(&ddb_entry->relogin_retry_count),
4541 ddb_entry->default_time2wait + 4));
4542 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
4543 atomic_set(&ddb_entry->retry_relogin_timer,
4544 ddb_entry->default_time2wait + 4);
4545 }
4546 }
4547 }
4548
4549 /**
4550 * qla4xxx_timer - checks every second for work to do.
4551 * @t: Context to obtain pointer to host adapter structure.
4552 **/
qla4xxx_timer(struct timer_list * t)4553 static void qla4xxx_timer(struct timer_list *t)
4554 {
4555 struct scsi_qla_host *ha = from_timer(ha, t, timer);
4556 int start_dpc = 0;
4557 uint16_t w;
4558
4559 iscsi_host_for_each_session(ha->host, qla4xxx_check_relogin_flash_ddb);
4560
4561 /* If we are in the middle of AER/EEH processing
4562 * skip any processing and reschedule the timer
4563 */
4564 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
4565 mod_timer(&ha->timer, jiffies + HZ);
4566 return;
4567 }
4568
4569 /* Hardware read to trigger an EEH error during mailbox waits. */
4570 if (!pci_channel_offline(ha->pdev))
4571 pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
4572
4573 if (is_qla80XX(ha))
4574 qla4_8xxx_watchdog(ha);
4575
4576 if (is_qla40XX(ha)) {
4577 /* Check for heartbeat interval. */
4578 if (ha->firmware_options & FWOPT_HEARTBEAT_ENABLE &&
4579 ha->heartbeat_interval != 0) {
4580 ha->seconds_since_last_heartbeat++;
4581 if (ha->seconds_since_last_heartbeat >
4582 ha->heartbeat_interval + 2)
4583 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4584 }
4585 }
4586
4587 /* Process any deferred work. */
4588 if (!list_empty(&ha->work_list))
4589 start_dpc++;
4590
4591 /* Wakeup the dpc routine for this adapter, if needed. */
4592 if (start_dpc ||
4593 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
4594 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags) ||
4595 test_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags) ||
4596 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) ||
4597 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
4598 test_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags) ||
4599 test_bit(DPC_LINK_CHANGED, &ha->dpc_flags) ||
4600 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) ||
4601 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) ||
4602 test_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags) ||
4603 test_bit(DPC_AEN, &ha->dpc_flags)) {
4604 DEBUG2(printk("scsi%ld: %s: scheduling dpc routine"
4605 " - dpc flags = 0x%lx\n",
4606 ha->host_no, __func__, ha->dpc_flags));
4607 qla4xxx_wake_dpc(ha);
4608 }
4609
4610 /* Reschedule timer thread to call us back in one second */
4611 mod_timer(&ha->timer, jiffies + HZ);
4612
4613 DEBUG2(ha->seconds_since_last_intr++);
4614 }
4615
4616 /**
4617 * qla4xxx_cmd_wait - waits for all outstanding commands to complete
4618 * @ha: Pointer to host adapter structure.
4619 *
4620 * This routine stalls the driver until all outstanding commands are returned.
4621 * Caller must release the Hardware Lock prior to calling this routine.
4622 **/
qla4xxx_cmd_wait(struct scsi_qla_host * ha)4623 static int qla4xxx_cmd_wait(struct scsi_qla_host *ha)
4624 {
4625 uint32_t index = 0;
4626 unsigned long flags;
4627 struct scsi_cmnd *cmd;
4628 unsigned long wtime;
4629 uint32_t wtmo;
4630
4631 if (is_qla40XX(ha))
4632 wtmo = WAIT_CMD_TOV;
4633 else
4634 wtmo = ha->nx_reset_timeout / 2;
4635
4636 wtime = jiffies + (wtmo * HZ);
4637
4638 DEBUG2(ql4_printk(KERN_INFO, ha,
4639 "Wait up to %u seconds for cmds to complete\n",
4640 wtmo));
4641
4642 while (!time_after_eq(jiffies, wtime)) {
4643 spin_lock_irqsave(&ha->hardware_lock, flags);
4644 /* Find a command that hasn't completed. */
4645 for (index = 0; index < ha->host->can_queue; index++) {
4646 cmd = scsi_host_find_tag(ha->host, index);
4647 /*
4648 * We cannot just check if the index is valid,
4649 * becase if we are run from the scsi eh, then
4650 * the scsi/block layer is going to prevent
4651 * the tag from being released.
4652 */
4653 if (cmd != NULL && CMD_SP(cmd))
4654 break;
4655 }
4656 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4657
4658 /* If No Commands are pending, wait is complete */
4659 if (index == ha->host->can_queue)
4660 return QLA_SUCCESS;
4661
4662 msleep(1000);
4663 }
4664 /* If we timed out on waiting for commands to come back
4665 * return ERROR. */
4666 return QLA_ERROR;
4667 }
4668
qla4xxx_hw_reset(struct scsi_qla_host * ha)4669 int qla4xxx_hw_reset(struct scsi_qla_host *ha)
4670 {
4671 uint32_t ctrl_status;
4672 unsigned long flags = 0;
4673
4674 DEBUG2(printk(KERN_ERR "scsi%ld: %s\n", ha->host_no, __func__));
4675
4676 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS)
4677 return QLA_ERROR;
4678
4679 spin_lock_irqsave(&ha->hardware_lock, flags);
4680
4681 /*
4682 * If the SCSI Reset Interrupt bit is set, clear it.
4683 * Otherwise, the Soft Reset won't work.
4684 */
4685 ctrl_status = readw(&ha->reg->ctrl_status);
4686 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0)
4687 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status);
4688
4689 /* Issue Soft Reset */
4690 writel(set_rmask(CSR_SOFT_RESET), &ha->reg->ctrl_status);
4691 readl(&ha->reg->ctrl_status);
4692
4693 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4694 return QLA_SUCCESS;
4695 }
4696
4697 /**
4698 * qla4xxx_soft_reset - performs soft reset.
4699 * @ha: Pointer to host adapter structure.
4700 **/
qla4xxx_soft_reset(struct scsi_qla_host * ha)4701 int qla4xxx_soft_reset(struct scsi_qla_host *ha)
4702 {
4703 uint32_t max_wait_time;
4704 unsigned long flags = 0;
4705 int status;
4706 uint32_t ctrl_status;
4707
4708 status = qla4xxx_hw_reset(ha);
4709 if (status != QLA_SUCCESS)
4710 return status;
4711
4712 status = QLA_ERROR;
4713 /* Wait until the Network Reset Intr bit is cleared */
4714 max_wait_time = RESET_INTR_TOV;
4715 do {
4716 spin_lock_irqsave(&ha->hardware_lock, flags);
4717 ctrl_status = readw(&ha->reg->ctrl_status);
4718 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4719
4720 if ((ctrl_status & CSR_NET_RESET_INTR) == 0)
4721 break;
4722
4723 msleep(1000);
4724 } while ((--max_wait_time));
4725
4726 if ((ctrl_status & CSR_NET_RESET_INTR) != 0) {
4727 DEBUG2(printk(KERN_WARNING
4728 "scsi%ld: Network Reset Intr not cleared by "
4729 "Network function, clearing it now!\n",
4730 ha->host_no));
4731 spin_lock_irqsave(&ha->hardware_lock, flags);
4732 writel(set_rmask(CSR_NET_RESET_INTR), &ha->reg->ctrl_status);
4733 readl(&ha->reg->ctrl_status);
4734 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4735 }
4736
4737 /* Wait until the firmware tells us the Soft Reset is done */
4738 max_wait_time = SOFT_RESET_TOV;
4739 do {
4740 spin_lock_irqsave(&ha->hardware_lock, flags);
4741 ctrl_status = readw(&ha->reg->ctrl_status);
4742 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4743
4744 if ((ctrl_status & CSR_SOFT_RESET) == 0) {
4745 status = QLA_SUCCESS;
4746 break;
4747 }
4748
4749 msleep(1000);
4750 } while ((--max_wait_time));
4751
4752 /*
4753 * Also, make sure that the SCSI Reset Interrupt bit has been cleared
4754 * after the soft reset has taken place.
4755 */
4756 spin_lock_irqsave(&ha->hardware_lock, flags);
4757 ctrl_status = readw(&ha->reg->ctrl_status);
4758 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) {
4759 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status);
4760 readl(&ha->reg->ctrl_status);
4761 }
4762 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4763
4764 /* If soft reset fails then most probably the bios on other
4765 * function is also enabled.
4766 * Since the initialization is sequential the other fn
4767 * wont be able to acknowledge the soft reset.
4768 * Issue a force soft reset to workaround this scenario.
4769 */
4770 if (max_wait_time == 0) {
4771 /* Issue Force Soft Reset */
4772 spin_lock_irqsave(&ha->hardware_lock, flags);
4773 writel(set_rmask(CSR_FORCE_SOFT_RESET), &ha->reg->ctrl_status);
4774 readl(&ha->reg->ctrl_status);
4775 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4776 /* Wait until the firmware tells us the Soft Reset is done */
4777 max_wait_time = SOFT_RESET_TOV;
4778 do {
4779 spin_lock_irqsave(&ha->hardware_lock, flags);
4780 ctrl_status = readw(&ha->reg->ctrl_status);
4781 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4782
4783 if ((ctrl_status & CSR_FORCE_SOFT_RESET) == 0) {
4784 status = QLA_SUCCESS;
4785 break;
4786 }
4787
4788 msleep(1000);
4789 } while ((--max_wait_time));
4790 }
4791
4792 return status;
4793 }
4794
4795 /**
4796 * qla4xxx_abort_active_cmds - returns all outstanding i/o requests to O.S.
4797 * @ha: Pointer to host adapter structure.
4798 * @res: returned scsi status
4799 *
4800 * This routine is called just prior to a HARD RESET to return all
4801 * outstanding commands back to the Operating System.
4802 * Caller should make sure that the following locks are released
4803 * before this calling routine: Hardware lock, and io_request_lock.
4804 **/
qla4xxx_abort_active_cmds(struct scsi_qla_host * ha,int res)4805 static void qla4xxx_abort_active_cmds(struct scsi_qla_host *ha, int res)
4806 {
4807 struct srb *srb;
4808 int i;
4809 unsigned long flags;
4810
4811 spin_lock_irqsave(&ha->hardware_lock, flags);
4812 for (i = 0; i < ha->host->can_queue; i++) {
4813 srb = qla4xxx_del_from_active_array(ha, i);
4814 if (srb != NULL) {
4815 srb->cmd->result = res;
4816 kref_put(&srb->srb_ref, qla4xxx_srb_compl);
4817 }
4818 }
4819 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4820 }
4821
qla4xxx_dead_adapter_cleanup(struct scsi_qla_host * ha)4822 void qla4xxx_dead_adapter_cleanup(struct scsi_qla_host *ha)
4823 {
4824 clear_bit(AF_ONLINE, &ha->flags);
4825
4826 /* Disable the board */
4827 ql4_printk(KERN_INFO, ha, "Disabling the board\n");
4828
4829 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
4830 qla4xxx_mark_all_devices_missing(ha);
4831 clear_bit(AF_INIT_DONE, &ha->flags);
4832 }
4833
qla4xxx_fail_session(struct iscsi_cls_session * cls_session)4834 static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session)
4835 {
4836 struct iscsi_session *sess;
4837 struct ddb_entry *ddb_entry;
4838
4839 sess = cls_session->dd_data;
4840 ddb_entry = sess->dd_data;
4841 ddb_entry->fw_ddb_device_state = DDB_DS_SESSION_FAILED;
4842
4843 if (ddb_entry->ddb_type == FLASH_DDB)
4844 iscsi_block_session(ddb_entry->sess);
4845 else
4846 iscsi_session_failure(cls_session->dd_data,
4847 ISCSI_ERR_CONN_FAILED);
4848 }
4849
4850 /**
4851 * qla4xxx_recover_adapter - recovers adapter after a fatal error
4852 * @ha: Pointer to host adapter structure.
4853 **/
qla4xxx_recover_adapter(struct scsi_qla_host * ha)4854 static int qla4xxx_recover_adapter(struct scsi_qla_host *ha)
4855 {
4856 int status = QLA_ERROR;
4857 uint8_t reset_chip = 0;
4858 uint32_t dev_state;
4859 unsigned long wait;
4860
4861 /* Stall incoming I/O until we are done */
4862 scsi_block_requests(ha->host);
4863 clear_bit(AF_ONLINE, &ha->flags);
4864 clear_bit(AF_LINK_UP, &ha->flags);
4865
4866 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: adapter OFFLINE\n", __func__));
4867
4868 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
4869
4870 if ((is_qla8032(ha) || is_qla8042(ha)) &&
4871 !test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) {
4872 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
4873 __func__);
4874 /* disable pause frame for ISP83xx */
4875 qla4_83xx_disable_pause(ha);
4876 }
4877
4878 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session);
4879
4880 if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
4881 reset_chip = 1;
4882
4883 /* For the DPC_RESET_HA_INTR case (ISP-4xxx specific)
4884 * do not reset adapter, jump to initialize_adapter */
4885 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
4886 status = QLA_SUCCESS;
4887 goto recover_ha_init_adapter;
4888 }
4889
4890 /* For the ISP-8xxx adapter, issue a stop_firmware if invoked
4891 * from eh_host_reset or ioctl module */
4892 if (is_qla80XX(ha) && !reset_chip &&
4893 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) {
4894
4895 DEBUG2(ql4_printk(KERN_INFO, ha,
4896 "scsi%ld: %s - Performing stop_firmware...\n",
4897 ha->host_no, __func__));
4898 status = ha->isp_ops->reset_firmware(ha);
4899 if (status == QLA_SUCCESS) {
4900 ha->isp_ops->disable_intrs(ha);
4901 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
4902 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
4903 } else {
4904 /* If the stop_firmware fails then
4905 * reset the entire chip */
4906 reset_chip = 1;
4907 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
4908 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4909 }
4910 }
4911
4912 /* Issue full chip reset if recovering from a catastrophic error,
4913 * or if stop_firmware fails for ISP-8xxx.
4914 * This is the default case for ISP-4xxx */
4915 if (is_qla40XX(ha) || reset_chip) {
4916 if (is_qla40XX(ha))
4917 goto chip_reset;
4918
4919 /* Check if 8XXX firmware is alive or not
4920 * We may have arrived here from NEED_RESET
4921 * detection only */
4922 if (test_bit(AF_FW_RECOVERY, &ha->flags))
4923 goto chip_reset;
4924
4925 wait = jiffies + (FW_ALIVE_WAIT_TOV * HZ);
4926 while (time_before(jiffies, wait)) {
4927 if (qla4_8xxx_check_fw_alive(ha)) {
4928 qla4xxx_mailbox_premature_completion(ha);
4929 break;
4930 }
4931
4932 set_current_state(TASK_UNINTERRUPTIBLE);
4933 schedule_timeout(HZ);
4934 }
4935 chip_reset:
4936 if (!test_bit(AF_FW_RECOVERY, &ha->flags))
4937 qla4xxx_cmd_wait(ha);
4938
4939 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
4940 DEBUG2(ql4_printk(KERN_INFO, ha,
4941 "scsi%ld: %s - Performing chip reset..\n",
4942 ha->host_no, __func__));
4943 status = ha->isp_ops->reset_chip(ha);
4944 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
4945 }
4946
4947 /* Flush any pending ddb changed AENs */
4948 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
4949
4950 recover_ha_init_adapter:
4951 /* Upon successful firmware/chip reset, re-initialize the adapter */
4952 if (status == QLA_SUCCESS) {
4953 /* For ISP-4xxx, force function 1 to always initialize
4954 * before function 3 to prevent both funcions from
4955 * stepping on top of the other */
4956 if (is_qla40XX(ha) && (ha->mac_index == 3))
4957 ssleep(6);
4958
4959 /* NOTE: AF_ONLINE flag set upon successful completion of
4960 * qla4xxx_initialize_adapter */
4961 status = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
4962 if (is_qla80XX(ha) && (status == QLA_ERROR)) {
4963 status = qla4_8xxx_check_init_adapter_retry(ha);
4964 if (status == QLA_ERROR) {
4965 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Don't retry recover adapter\n",
4966 ha->host_no, __func__);
4967 qla4xxx_dead_adapter_cleanup(ha);
4968 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
4969 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
4970 clear_bit(DPC_RESET_HA_FW_CONTEXT,
4971 &ha->dpc_flags);
4972 goto exit_recover;
4973 }
4974 }
4975 }
4976
4977 /* Retry failed adapter initialization, if necessary
4978 * Do not retry initialize_adapter for RESET_HA_INTR (ISP-4xxx specific)
4979 * case to prevent ping-pong resets between functions */
4980 if (!test_bit(AF_ONLINE, &ha->flags) &&
4981 !test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
4982 /* Adapter initialization failed, see if we can retry
4983 * resetting the ha.
4984 * Since we don't want to block the DPC for too long
4985 * with multiple resets in the same thread,
4986 * utilize DPC to retry */
4987 if (is_qla80XX(ha)) {
4988 ha->isp_ops->idc_lock(ha);
4989 dev_state = qla4_8xxx_rd_direct(ha,
4990 QLA8XXX_CRB_DEV_STATE);
4991 ha->isp_ops->idc_unlock(ha);
4992 if (dev_state == QLA8XXX_DEV_FAILED) {
4993 ql4_printk(KERN_INFO, ha, "%s: don't retry "
4994 "recover adapter. H/W is in Failed "
4995 "state\n", __func__);
4996 qla4xxx_dead_adapter_cleanup(ha);
4997 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
4998 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
4999 clear_bit(DPC_RESET_HA_FW_CONTEXT,
5000 &ha->dpc_flags);
5001 status = QLA_ERROR;
5002
5003 goto exit_recover;
5004 }
5005 }
5006
5007 if (!test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags)) {
5008 ha->retry_reset_ha_cnt = MAX_RESET_HA_RETRIES;
5009 DEBUG2(printk("scsi%ld: recover adapter - retrying "
5010 "(%d) more times\n", ha->host_no,
5011 ha->retry_reset_ha_cnt));
5012 set_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
5013 status = QLA_ERROR;
5014 } else {
5015 if (ha->retry_reset_ha_cnt > 0) {
5016 /* Schedule another Reset HA--DPC will retry */
5017 ha->retry_reset_ha_cnt--;
5018 DEBUG2(printk("scsi%ld: recover adapter - "
5019 "retry remaining %d\n",
5020 ha->host_no,
5021 ha->retry_reset_ha_cnt));
5022 status = QLA_ERROR;
5023 }
5024
5025 if (ha->retry_reset_ha_cnt == 0) {
5026 /* Recover adapter retries have been exhausted.
5027 * Adapter DEAD */
5028 DEBUG2(printk("scsi%ld: recover adapter "
5029 "failed - board disabled\n",
5030 ha->host_no));
5031 qla4xxx_dead_adapter_cleanup(ha);
5032 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
5033 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
5034 clear_bit(DPC_RESET_HA_FW_CONTEXT,
5035 &ha->dpc_flags);
5036 status = QLA_ERROR;
5037 }
5038 }
5039 } else {
5040 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
5041 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
5042 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
5043 }
5044
5045 exit_recover:
5046 ha->adapter_error_count++;
5047
5048 if (test_bit(AF_ONLINE, &ha->flags))
5049 ha->isp_ops->enable_intrs(ha);
5050
5051 scsi_unblock_requests(ha->host);
5052
5053 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
5054 DEBUG2(printk("scsi%ld: recover adapter: %s\n", ha->host_no,
5055 status == QLA_ERROR ? "FAILED" : "SUCCEEDED"));
5056
5057 return status;
5058 }
5059
qla4xxx_relogin_devices(struct iscsi_cls_session * cls_session)5060 static void qla4xxx_relogin_devices(struct iscsi_cls_session *cls_session)
5061 {
5062 struct iscsi_session *sess;
5063 struct ddb_entry *ddb_entry;
5064 struct scsi_qla_host *ha;
5065
5066 sess = cls_session->dd_data;
5067 ddb_entry = sess->dd_data;
5068 ha = ddb_entry->ha;
5069 if (!iscsi_is_session_online(cls_session)) {
5070 if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) {
5071 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5072 " unblock session\n", ha->host_no, __func__,
5073 ddb_entry->fw_ddb_index);
5074 iscsi_unblock_session(ddb_entry->sess);
5075 } else {
5076 /* Trigger relogin */
5077 if (ddb_entry->ddb_type == FLASH_DDB) {
5078 if (!(test_bit(DF_RELOGIN, &ddb_entry->flags) ||
5079 test_bit(DF_DISABLE_RELOGIN,
5080 &ddb_entry->flags)))
5081 qla4xxx_arm_relogin_timer(ddb_entry);
5082 } else
5083 iscsi_session_failure(cls_session->dd_data,
5084 ISCSI_ERR_CONN_FAILED);
5085 }
5086 }
5087 }
5088
qla4xxx_unblock_flash_ddb(struct iscsi_cls_session * cls_session)5089 int qla4xxx_unblock_flash_ddb(struct iscsi_cls_session *cls_session)
5090 {
5091 struct iscsi_session *sess;
5092 struct ddb_entry *ddb_entry;
5093 struct scsi_qla_host *ha;
5094
5095 sess = cls_session->dd_data;
5096 ddb_entry = sess->dd_data;
5097 ha = ddb_entry->ha;
5098 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5099 " unblock session\n", ha->host_no, __func__,
5100 ddb_entry->fw_ddb_index);
5101
5102 iscsi_unblock_session(ddb_entry->sess);
5103
5104 /* Start scan target */
5105 if (test_bit(AF_ONLINE, &ha->flags)) {
5106 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5107 " start scan\n", ha->host_no, __func__,
5108 ddb_entry->fw_ddb_index);
5109 scsi_queue_work(ha->host, &ddb_entry->sess->scan_work);
5110 }
5111 return QLA_SUCCESS;
5112 }
5113
qla4xxx_unblock_ddb(struct iscsi_cls_session * cls_session)5114 int qla4xxx_unblock_ddb(struct iscsi_cls_session *cls_session)
5115 {
5116 struct iscsi_session *sess;
5117 struct ddb_entry *ddb_entry;
5118 struct scsi_qla_host *ha;
5119 int status = QLA_SUCCESS;
5120
5121 sess = cls_session->dd_data;
5122 ddb_entry = sess->dd_data;
5123 ha = ddb_entry->ha;
5124 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5125 " unblock user space session\n", ha->host_no, __func__,
5126 ddb_entry->fw_ddb_index);
5127
5128 if (!iscsi_is_session_online(cls_session)) {
5129 iscsi_conn_start(ddb_entry->conn);
5130 iscsi_conn_login_event(ddb_entry->conn,
5131 ISCSI_CONN_STATE_LOGGED_IN);
5132 } else {
5133 ql4_printk(KERN_INFO, ha,
5134 "scsi%ld: %s: ddb[%d] session [%d] already logged in\n",
5135 ha->host_no, __func__, ddb_entry->fw_ddb_index,
5136 cls_session->sid);
5137 status = QLA_ERROR;
5138 }
5139
5140 return status;
5141 }
5142
qla4xxx_relogin_all_devices(struct scsi_qla_host * ha)5143 static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha)
5144 {
5145 iscsi_host_for_each_session(ha->host, qla4xxx_relogin_devices);
5146 }
5147
qla4xxx_relogin_flash_ddb(struct iscsi_cls_session * cls_sess)5148 static void qla4xxx_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)
5149 {
5150 uint16_t relogin_timer;
5151 struct iscsi_session *sess;
5152 struct ddb_entry *ddb_entry;
5153 struct scsi_qla_host *ha;
5154
5155 sess = cls_sess->dd_data;
5156 ddb_entry = sess->dd_data;
5157 ha = ddb_entry->ha;
5158
5159 relogin_timer = max(ddb_entry->default_relogin_timeout,
5160 (uint16_t)RELOGIN_TOV);
5161 atomic_set(&ddb_entry->relogin_timer, relogin_timer);
5162
5163 DEBUG2(ql4_printk(KERN_INFO, ha,
5164 "scsi%ld: Relogin index [%d]. TOV=%d\n", ha->host_no,
5165 ddb_entry->fw_ddb_index, relogin_timer));
5166
5167 qla4xxx_login_flash_ddb(cls_sess);
5168 }
5169
qla4xxx_dpc_relogin(struct iscsi_cls_session * cls_sess)5170 static void qla4xxx_dpc_relogin(struct iscsi_cls_session *cls_sess)
5171 {
5172 struct iscsi_session *sess;
5173 struct ddb_entry *ddb_entry;
5174 struct scsi_qla_host *ha;
5175
5176 sess = cls_sess->dd_data;
5177 ddb_entry = sess->dd_data;
5178 ha = ddb_entry->ha;
5179
5180 if (!(ddb_entry->ddb_type == FLASH_DDB))
5181 return;
5182
5183 if (test_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags))
5184 return;
5185
5186 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags) &&
5187 !iscsi_is_session_online(cls_sess)) {
5188 DEBUG2(ql4_printk(KERN_INFO, ha,
5189 "relogin issued\n"));
5190 qla4xxx_relogin_flash_ddb(cls_sess);
5191 }
5192 }
5193
qla4xxx_wake_dpc(struct scsi_qla_host * ha)5194 void qla4xxx_wake_dpc(struct scsi_qla_host *ha)
5195 {
5196 if (ha->dpc_thread)
5197 queue_work(ha->dpc_thread, &ha->dpc_work);
5198 }
5199
5200 static struct qla4_work_evt *
qla4xxx_alloc_work(struct scsi_qla_host * ha,uint32_t data_size,enum qla4_work_type type)5201 qla4xxx_alloc_work(struct scsi_qla_host *ha, uint32_t data_size,
5202 enum qla4_work_type type)
5203 {
5204 struct qla4_work_evt *e;
5205 uint32_t size = sizeof(struct qla4_work_evt) + data_size;
5206
5207 e = kzalloc(size, GFP_ATOMIC);
5208 if (!e)
5209 return NULL;
5210
5211 INIT_LIST_HEAD(&e->list);
5212 e->type = type;
5213 return e;
5214 }
5215
qla4xxx_post_work(struct scsi_qla_host * ha,struct qla4_work_evt * e)5216 static void qla4xxx_post_work(struct scsi_qla_host *ha,
5217 struct qla4_work_evt *e)
5218 {
5219 unsigned long flags;
5220
5221 spin_lock_irqsave(&ha->work_lock, flags);
5222 list_add_tail(&e->list, &ha->work_list);
5223 spin_unlock_irqrestore(&ha->work_lock, flags);
5224 qla4xxx_wake_dpc(ha);
5225 }
5226
qla4xxx_post_aen_work(struct scsi_qla_host * ha,enum iscsi_host_event_code aen_code,uint32_t data_size,uint8_t * data)5227 int qla4xxx_post_aen_work(struct scsi_qla_host *ha,
5228 enum iscsi_host_event_code aen_code,
5229 uint32_t data_size, uint8_t *data)
5230 {
5231 struct qla4_work_evt *e;
5232
5233 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_AEN);
5234 if (!e)
5235 return QLA_ERROR;
5236
5237 e->u.aen.code = aen_code;
5238 e->u.aen.data_size = data_size;
5239 memcpy(e->u.aen.data, data, data_size);
5240
5241 qla4xxx_post_work(ha, e);
5242
5243 return QLA_SUCCESS;
5244 }
5245
qla4xxx_post_ping_evt_work(struct scsi_qla_host * ha,uint32_t status,uint32_t pid,uint32_t data_size,uint8_t * data)5246 int qla4xxx_post_ping_evt_work(struct scsi_qla_host *ha,
5247 uint32_t status, uint32_t pid,
5248 uint32_t data_size, uint8_t *data)
5249 {
5250 struct qla4_work_evt *e;
5251
5252 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_PING_STATUS);
5253 if (!e)
5254 return QLA_ERROR;
5255
5256 e->u.ping.status = status;
5257 e->u.ping.pid = pid;
5258 e->u.ping.data_size = data_size;
5259 memcpy(e->u.ping.data, data, data_size);
5260
5261 qla4xxx_post_work(ha, e);
5262
5263 return QLA_SUCCESS;
5264 }
5265
qla4xxx_do_work(struct scsi_qla_host * ha)5266 static void qla4xxx_do_work(struct scsi_qla_host *ha)
5267 {
5268 struct qla4_work_evt *e, *tmp;
5269 unsigned long flags;
5270 LIST_HEAD(work);
5271
5272 spin_lock_irqsave(&ha->work_lock, flags);
5273 list_splice_init(&ha->work_list, &work);
5274 spin_unlock_irqrestore(&ha->work_lock, flags);
5275
5276 list_for_each_entry_safe(e, tmp, &work, list) {
5277 list_del_init(&e->list);
5278
5279 switch (e->type) {
5280 case QLA4_EVENT_AEN:
5281 iscsi_post_host_event(ha->host_no,
5282 &qla4xxx_iscsi_transport,
5283 e->u.aen.code,
5284 e->u.aen.data_size,
5285 e->u.aen.data);
5286 break;
5287 case QLA4_EVENT_PING_STATUS:
5288 iscsi_ping_comp_event(ha->host_no,
5289 &qla4xxx_iscsi_transport,
5290 e->u.ping.status,
5291 e->u.ping.pid,
5292 e->u.ping.data_size,
5293 e->u.ping.data);
5294 break;
5295 default:
5296 ql4_printk(KERN_WARNING, ha, "event type: 0x%x not "
5297 "supported", e->type);
5298 }
5299 kfree(e);
5300 }
5301 }
5302
5303 /**
5304 * qla4xxx_do_dpc - dpc routine
5305 * @work: Context to obtain pointer to host adapter structure.
5306 *
5307 * This routine is a task that is schedule by the interrupt handler
5308 * to perform the background processing for interrupts. We put it
5309 * on a task queue that is consumed whenever the scheduler runs; that's
5310 * so you can do anything (i.e. put the process to sleep etc). In fact,
5311 * the mid-level tries to sleep when it reaches the driver threshold
5312 * "host->can_queue". This can cause a panic if we were in our interrupt code.
5313 **/
qla4xxx_do_dpc(struct work_struct * work)5314 static void qla4xxx_do_dpc(struct work_struct *work)
5315 {
5316 struct scsi_qla_host *ha =
5317 container_of(work, struct scsi_qla_host, dpc_work);
5318 int status = QLA_ERROR;
5319
5320 DEBUG2(ql4_printk(KERN_INFO, ha,
5321 "scsi%ld: %s: DPC handler waking up. flags = 0x%08lx, dpc_flags = 0x%08lx\n",
5322 ha->host_no, __func__, ha->flags, ha->dpc_flags));
5323
5324 /* Initialization not yet finished. Don't do anything yet. */
5325 if (!test_bit(AF_INIT_DONE, &ha->flags))
5326 return;
5327
5328 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
5329 DEBUG2(printk(KERN_INFO "scsi%ld: %s: flags = %lx\n",
5330 ha->host_no, __func__, ha->flags));
5331 return;
5332 }
5333
5334 /* post events to application */
5335 qla4xxx_do_work(ha);
5336
5337 if (is_qla80XX(ha)) {
5338 if (test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags)) {
5339 if (is_qla8032(ha) || is_qla8042(ha)) {
5340 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
5341 __func__);
5342 /* disable pause frame for ISP83xx */
5343 qla4_83xx_disable_pause(ha);
5344 }
5345
5346 ha->isp_ops->idc_lock(ha);
5347 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
5348 QLA8XXX_DEV_FAILED);
5349 ha->isp_ops->idc_unlock(ha);
5350 ql4_printk(KERN_INFO, ha, "HW State: FAILED\n");
5351 qla4_8xxx_device_state_handler(ha);
5352 }
5353
5354 if (test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags)) {
5355 if (is_qla8042(ha)) {
5356 if (ha->idc_info.info2 &
5357 ENABLE_INTERNAL_LOOPBACK) {
5358 ql4_printk(KERN_INFO, ha, "%s: Disabling ACB\n",
5359 __func__);
5360 status = qla4_84xx_config_acb(ha,
5361 ACB_CONFIG_DISABLE);
5362 if (status != QLA_SUCCESS) {
5363 ql4_printk(KERN_INFO, ha, "%s: ACB config failed\n",
5364 __func__);
5365 }
5366 }
5367 }
5368 qla4_83xx_post_idc_ack(ha);
5369 clear_bit(DPC_POST_IDC_ACK, &ha->dpc_flags);
5370 }
5371
5372 if (is_qla8042(ha) &&
5373 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags)) {
5374 ql4_printk(KERN_INFO, ha, "%s: Restoring ACB\n",
5375 __func__);
5376 if (qla4_84xx_config_acb(ha, ACB_CONFIG_SET) !=
5377 QLA_SUCCESS) {
5378 ql4_printk(KERN_INFO, ha, "%s: ACB config failed ",
5379 __func__);
5380 }
5381 clear_bit(DPC_RESTORE_ACB, &ha->dpc_flags);
5382 }
5383
5384 if (test_and_clear_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) {
5385 qla4_8xxx_need_qsnt_handler(ha);
5386 }
5387 }
5388
5389 if (!test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) &&
5390 (test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
5391 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
5392 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))) {
5393 if ((is_qla8022(ha) && ql4xdontresethba) ||
5394 ((is_qla8032(ha) || is_qla8042(ha)) &&
5395 qla4_83xx_idc_dontreset(ha))) {
5396 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n",
5397 ha->host_no, __func__));
5398 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
5399 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags);
5400 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
5401 goto dpc_post_reset_ha;
5402 }
5403 if (test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) ||
5404 test_bit(DPC_RESET_HA, &ha->dpc_flags))
5405 qla4xxx_recover_adapter(ha);
5406
5407 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
5408 uint8_t wait_time = RESET_INTR_TOV;
5409
5410 while ((readw(&ha->reg->ctrl_status) &
5411 (CSR_SOFT_RESET | CSR_FORCE_SOFT_RESET)) != 0) {
5412 if (--wait_time == 0)
5413 break;
5414 msleep(1000);
5415 }
5416 if (wait_time == 0)
5417 DEBUG2(printk("scsi%ld: %s: SR|FSR "
5418 "bit not cleared-- resetting\n",
5419 ha->host_no, __func__));
5420 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
5421 if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS) {
5422 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
5423 status = qla4xxx_recover_adapter(ha);
5424 }
5425 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags);
5426 if (status == QLA_SUCCESS)
5427 ha->isp_ops->enable_intrs(ha);
5428 }
5429 }
5430
5431 dpc_post_reset_ha:
5432 /* ---- process AEN? --- */
5433 if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags))
5434 qla4xxx_process_aen(ha, PROCESS_ALL_AENS);
5435
5436 /* ---- Get DHCP IP Address? --- */
5437 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags))
5438 qla4xxx_get_dhcp_ip_address(ha);
5439
5440 /* ---- relogin device? --- */
5441 if (adapter_up(ha) &&
5442 test_and_clear_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags)) {
5443 iscsi_host_for_each_session(ha->host, qla4xxx_dpc_relogin);
5444 }
5445
5446 /* ---- link change? --- */
5447 if (!test_bit(AF_LOOPBACK, &ha->flags) &&
5448 test_and_clear_bit(DPC_LINK_CHANGED, &ha->dpc_flags)) {
5449 if (!test_bit(AF_LINK_UP, &ha->flags)) {
5450 /* ---- link down? --- */
5451 qla4xxx_mark_all_devices_missing(ha);
5452 } else {
5453 /* ---- link up? --- *
5454 * F/W will auto login to all devices ONLY ONCE after
5455 * link up during driver initialization and runtime
5456 * fatal error recovery. Therefore, the driver must
5457 * manually relogin to devices when recovering from
5458 * connection failures, logouts, expired KATO, etc. */
5459 if (test_and_clear_bit(AF_BUILD_DDB_LIST, &ha->flags)) {
5460 qla4xxx_build_ddb_list(ha, ha->is_reset);
5461 iscsi_host_for_each_session(ha->host,
5462 qla4xxx_login_flash_ddb);
5463 } else
5464 qla4xxx_relogin_all_devices(ha);
5465 }
5466 }
5467 if (test_and_clear_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags)) {
5468 if (qla4xxx_sysfs_ddb_export(ha))
5469 ql4_printk(KERN_ERR, ha, "%s: Error exporting ddb to sysfs\n",
5470 __func__);
5471 }
5472 }
5473
5474 /**
5475 * qla4xxx_free_adapter - release the adapter
5476 * @ha: pointer to adapter structure
5477 **/
qla4xxx_free_adapter(struct scsi_qla_host * ha)5478 static void qla4xxx_free_adapter(struct scsi_qla_host *ha)
5479 {
5480 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
5481
5482 /* Turn-off interrupts on the card. */
5483 ha->isp_ops->disable_intrs(ha);
5484
5485 if (is_qla40XX(ha)) {
5486 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR),
5487 &ha->reg->ctrl_status);
5488 readl(&ha->reg->ctrl_status);
5489 } else if (is_qla8022(ha)) {
5490 writel(0, &ha->qla4_82xx_reg->host_int);
5491 readl(&ha->qla4_82xx_reg->host_int);
5492 } else if (is_qla8032(ha) || is_qla8042(ha)) {
5493 writel(0, &ha->qla4_83xx_reg->risc_intr);
5494 readl(&ha->qla4_83xx_reg->risc_intr);
5495 }
5496
5497 /* Remove timer thread, if present */
5498 if (ha->timer_active)
5499 qla4xxx_stop_timer(ha);
5500
5501 /* Kill the kernel thread for this host */
5502 if (ha->dpc_thread)
5503 destroy_workqueue(ha->dpc_thread);
5504
5505 /* Kill the kernel thread for this host */
5506 if (ha->task_wq)
5507 destroy_workqueue(ha->task_wq);
5508
5509 /* Put firmware in known state */
5510 ha->isp_ops->reset_firmware(ha);
5511
5512 if (is_qla80XX(ha)) {
5513 ha->isp_ops->idc_lock(ha);
5514 qla4_8xxx_clear_drv_active(ha);
5515 ha->isp_ops->idc_unlock(ha);
5516 }
5517
5518 /* Detach interrupts */
5519 qla4xxx_free_irqs(ha);
5520
5521 /* free extra memory */
5522 qla4xxx_mem_free(ha);
5523 }
5524
qla4_8xxx_iospace_config(struct scsi_qla_host * ha)5525 int qla4_8xxx_iospace_config(struct scsi_qla_host *ha)
5526 {
5527 int status = 0;
5528 unsigned long mem_base, mem_len;
5529 struct pci_dev *pdev = ha->pdev;
5530
5531 status = pci_request_regions(pdev, DRIVER_NAME);
5532 if (status) {
5533 printk(KERN_WARNING
5534 "scsi(%ld) Failed to reserve PIO regions (%s) "
5535 "status=%d\n", ha->host_no, pci_name(pdev), status);
5536 goto iospace_error_exit;
5537 }
5538
5539 DEBUG2(printk(KERN_INFO "%s: revision-id=%d\n",
5540 __func__, pdev->revision));
5541 ha->revision_id = pdev->revision;
5542
5543 /* remap phys address */
5544 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
5545 mem_len = pci_resource_len(pdev, 0);
5546 DEBUG2(printk(KERN_INFO "%s: ioremap from %lx a size of %lx\n",
5547 __func__, mem_base, mem_len));
5548
5549 /* mapping of pcibase pointer */
5550 ha->nx_pcibase = (unsigned long)ioremap(mem_base, mem_len);
5551 if (!ha->nx_pcibase) {
5552 printk(KERN_ERR
5553 "cannot remap MMIO (%s), aborting\n", pci_name(pdev));
5554 pci_release_regions(ha->pdev);
5555 goto iospace_error_exit;
5556 }
5557
5558 /* Mapping of IO base pointer, door bell read and write pointer */
5559
5560 /* mapping of IO base pointer */
5561 if (is_qla8022(ha)) {
5562 ha->qla4_82xx_reg = (struct device_reg_82xx __iomem *)
5563 ((uint8_t *)ha->nx_pcibase + 0xbc000 +
5564 (ha->pdev->devfn << 11));
5565 ha->nx_db_wr_ptr = (ha->pdev->devfn == 4 ? QLA82XX_CAM_RAM_DB1 :
5566 QLA82XX_CAM_RAM_DB2);
5567 } else if (is_qla8032(ha) || is_qla8042(ha)) {
5568 ha->qla4_83xx_reg = (struct device_reg_83xx __iomem *)
5569 ((uint8_t *)ha->nx_pcibase);
5570 }
5571
5572 return 0;
5573 iospace_error_exit:
5574 return -ENOMEM;
5575 }
5576
5577 /***
5578 * qla4xxx_iospace_config - maps registers
5579 * @ha: pointer to adapter structure
5580 *
5581 * This routines maps HBA's registers from the pci address space
5582 * into the kernel virtual address space for memory mapped i/o.
5583 **/
qla4xxx_iospace_config(struct scsi_qla_host * ha)5584 int qla4xxx_iospace_config(struct scsi_qla_host *ha)
5585 {
5586 unsigned long pio, pio_len, pio_flags;
5587 unsigned long mmio, mmio_len, mmio_flags;
5588
5589 pio = pci_resource_start(ha->pdev, 0);
5590 pio_len = pci_resource_len(ha->pdev, 0);
5591 pio_flags = pci_resource_flags(ha->pdev, 0);
5592 if (pio_flags & IORESOURCE_IO) {
5593 if (pio_len < MIN_IOBASE_LEN) {
5594 ql4_printk(KERN_WARNING, ha,
5595 "Invalid PCI I/O region size\n");
5596 pio = 0;
5597 }
5598 } else {
5599 ql4_printk(KERN_WARNING, ha, "region #0 not a PIO resource\n");
5600 pio = 0;
5601 }
5602
5603 /* Use MMIO operations for all accesses. */
5604 mmio = pci_resource_start(ha->pdev, 1);
5605 mmio_len = pci_resource_len(ha->pdev, 1);
5606 mmio_flags = pci_resource_flags(ha->pdev, 1);
5607
5608 if (!(mmio_flags & IORESOURCE_MEM)) {
5609 ql4_printk(KERN_ERR, ha,
5610 "region #0 not an MMIO resource, aborting\n");
5611
5612 goto iospace_error_exit;
5613 }
5614
5615 if (mmio_len < MIN_IOBASE_LEN) {
5616 ql4_printk(KERN_ERR, ha,
5617 "Invalid PCI mem region size, aborting\n");
5618 goto iospace_error_exit;
5619 }
5620
5621 if (pci_request_regions(ha->pdev, DRIVER_NAME)) {
5622 ql4_printk(KERN_WARNING, ha,
5623 "Failed to reserve PIO/MMIO regions\n");
5624
5625 goto iospace_error_exit;
5626 }
5627
5628 ha->pio_address = pio;
5629 ha->pio_length = pio_len;
5630 ha->reg = ioremap(mmio, MIN_IOBASE_LEN);
5631 if (!ha->reg) {
5632 ql4_printk(KERN_ERR, ha,
5633 "cannot remap MMIO, aborting\n");
5634
5635 goto iospace_error_exit;
5636 }
5637
5638 return 0;
5639
5640 iospace_error_exit:
5641 return -ENOMEM;
5642 }
5643
5644 static struct isp_operations qla4xxx_isp_ops = {
5645 .iospace_config = qla4xxx_iospace_config,
5646 .pci_config = qla4xxx_pci_config,
5647 .disable_intrs = qla4xxx_disable_intrs,
5648 .enable_intrs = qla4xxx_enable_intrs,
5649 .start_firmware = qla4xxx_start_firmware,
5650 .intr_handler = qla4xxx_intr_handler,
5651 .interrupt_service_routine = qla4xxx_interrupt_service_routine,
5652 .reset_chip = qla4xxx_soft_reset,
5653 .reset_firmware = qla4xxx_hw_reset,
5654 .queue_iocb = qla4xxx_queue_iocb,
5655 .complete_iocb = qla4xxx_complete_iocb,
5656 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out,
5657 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in,
5658 .get_sys_info = qla4xxx_get_sys_info,
5659 .queue_mailbox_command = qla4xxx_queue_mbox_cmd,
5660 .process_mailbox_interrupt = qla4xxx_process_mbox_intr,
5661 };
5662
5663 static struct isp_operations qla4_82xx_isp_ops = {
5664 .iospace_config = qla4_8xxx_iospace_config,
5665 .pci_config = qla4_8xxx_pci_config,
5666 .disable_intrs = qla4_82xx_disable_intrs,
5667 .enable_intrs = qla4_82xx_enable_intrs,
5668 .start_firmware = qla4_8xxx_load_risc,
5669 .restart_firmware = qla4_82xx_try_start_fw,
5670 .intr_handler = qla4_82xx_intr_handler,
5671 .interrupt_service_routine = qla4_82xx_interrupt_service_routine,
5672 .need_reset = qla4_8xxx_need_reset,
5673 .reset_chip = qla4_82xx_isp_reset,
5674 .reset_firmware = qla4_8xxx_stop_firmware,
5675 .queue_iocb = qla4_82xx_queue_iocb,
5676 .complete_iocb = qla4_82xx_complete_iocb,
5677 .rd_shdw_req_q_out = qla4_82xx_rd_shdw_req_q_out,
5678 .rd_shdw_rsp_q_in = qla4_82xx_rd_shdw_rsp_q_in,
5679 .get_sys_info = qla4_8xxx_get_sys_info,
5680 .rd_reg_direct = qla4_82xx_rd_32,
5681 .wr_reg_direct = qla4_82xx_wr_32,
5682 .rd_reg_indirect = qla4_82xx_md_rd_32,
5683 .wr_reg_indirect = qla4_82xx_md_wr_32,
5684 .idc_lock = qla4_82xx_idc_lock,
5685 .idc_unlock = qla4_82xx_idc_unlock,
5686 .rom_lock_recovery = qla4_82xx_rom_lock_recovery,
5687 .queue_mailbox_command = qla4_82xx_queue_mbox_cmd,
5688 .process_mailbox_interrupt = qla4_82xx_process_mbox_intr,
5689 };
5690
5691 static struct isp_operations qla4_83xx_isp_ops = {
5692 .iospace_config = qla4_8xxx_iospace_config,
5693 .pci_config = qla4_8xxx_pci_config,
5694 .disable_intrs = qla4_83xx_disable_intrs,
5695 .enable_intrs = qla4_83xx_enable_intrs,
5696 .start_firmware = qla4_8xxx_load_risc,
5697 .restart_firmware = qla4_83xx_start_firmware,
5698 .intr_handler = qla4_83xx_intr_handler,
5699 .interrupt_service_routine = qla4_83xx_interrupt_service_routine,
5700 .need_reset = qla4_8xxx_need_reset,
5701 .reset_chip = qla4_83xx_isp_reset,
5702 .reset_firmware = qla4_8xxx_stop_firmware,
5703 .queue_iocb = qla4_83xx_queue_iocb,
5704 .complete_iocb = qla4_83xx_complete_iocb,
5705 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out,
5706 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in,
5707 .get_sys_info = qla4_8xxx_get_sys_info,
5708 .rd_reg_direct = qla4_83xx_rd_reg,
5709 .wr_reg_direct = qla4_83xx_wr_reg,
5710 .rd_reg_indirect = qla4_83xx_rd_reg_indirect,
5711 .wr_reg_indirect = qla4_83xx_wr_reg_indirect,
5712 .idc_lock = qla4_83xx_drv_lock,
5713 .idc_unlock = qla4_83xx_drv_unlock,
5714 .rom_lock_recovery = qla4_83xx_rom_lock_recovery,
5715 .queue_mailbox_command = qla4_83xx_queue_mbox_cmd,
5716 .process_mailbox_interrupt = qla4_83xx_process_mbox_intr,
5717 };
5718
qla4xxx_rd_shdw_req_q_out(struct scsi_qla_host * ha)5719 uint16_t qla4xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha)
5720 {
5721 return (uint16_t)le32_to_cpu(ha->shadow_regs->req_q_out);
5722 }
5723
qla4_82xx_rd_shdw_req_q_out(struct scsi_qla_host * ha)5724 uint16_t qla4_82xx_rd_shdw_req_q_out(struct scsi_qla_host *ha)
5725 {
5726 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->req_q_out));
5727 }
5728
qla4xxx_rd_shdw_rsp_q_in(struct scsi_qla_host * ha)5729 uint16_t qla4xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha)
5730 {
5731 return (uint16_t)le32_to_cpu(ha->shadow_regs->rsp_q_in);
5732 }
5733
qla4_82xx_rd_shdw_rsp_q_in(struct scsi_qla_host * ha)5734 uint16_t qla4_82xx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha)
5735 {
5736 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->rsp_q_in));
5737 }
5738
qla4xxx_show_boot_eth_info(void * data,int type,char * buf)5739 static ssize_t qla4xxx_show_boot_eth_info(void *data, int type, char *buf)
5740 {
5741 struct scsi_qla_host *ha = data;
5742 char *str = buf;
5743 int rc;
5744
5745 switch (type) {
5746 case ISCSI_BOOT_ETH_FLAGS:
5747 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT);
5748 break;
5749 case ISCSI_BOOT_ETH_INDEX:
5750 rc = sprintf(str, "0\n");
5751 break;
5752 case ISCSI_BOOT_ETH_MAC:
5753 rc = sysfs_format_mac(str, ha->my_mac,
5754 MAC_ADDR_LEN);
5755 break;
5756 default:
5757 rc = -ENOSYS;
5758 break;
5759 }
5760 return rc;
5761 }
5762
qla4xxx_eth_get_attr_visibility(void * data,int type)5763 static umode_t qla4xxx_eth_get_attr_visibility(void *data, int type)
5764 {
5765 int rc;
5766
5767 switch (type) {
5768 case ISCSI_BOOT_ETH_FLAGS:
5769 case ISCSI_BOOT_ETH_MAC:
5770 case ISCSI_BOOT_ETH_INDEX:
5771 rc = S_IRUGO;
5772 break;
5773 default:
5774 rc = 0;
5775 break;
5776 }
5777 return rc;
5778 }
5779
qla4xxx_show_boot_ini_info(void * data,int type,char * buf)5780 static ssize_t qla4xxx_show_boot_ini_info(void *data, int type, char *buf)
5781 {
5782 struct scsi_qla_host *ha = data;
5783 char *str = buf;
5784 int rc;
5785
5786 switch (type) {
5787 case ISCSI_BOOT_INI_INITIATOR_NAME:
5788 rc = sprintf(str, "%s\n", ha->name_string);
5789 break;
5790 default:
5791 rc = -ENOSYS;
5792 break;
5793 }
5794 return rc;
5795 }
5796
qla4xxx_ini_get_attr_visibility(void * data,int type)5797 static umode_t qla4xxx_ini_get_attr_visibility(void *data, int type)
5798 {
5799 int rc;
5800
5801 switch (type) {
5802 case ISCSI_BOOT_INI_INITIATOR_NAME:
5803 rc = S_IRUGO;
5804 break;
5805 default:
5806 rc = 0;
5807 break;
5808 }
5809 return rc;
5810 }
5811
5812 static ssize_t
qla4xxx_show_boot_tgt_info(struct ql4_boot_session_info * boot_sess,int type,char * buf)5813 qla4xxx_show_boot_tgt_info(struct ql4_boot_session_info *boot_sess, int type,
5814 char *buf)
5815 {
5816 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0];
5817 char *str = buf;
5818 int rc;
5819
5820 switch (type) {
5821 case ISCSI_BOOT_TGT_NAME:
5822 rc = sprintf(buf, "%s\n", (char *)&boot_sess->target_name);
5823 break;
5824 case ISCSI_BOOT_TGT_IP_ADDR:
5825 if (boot_sess->conn_list[0].dest_ipaddr.ip_type == 0x1)
5826 rc = sprintf(buf, "%pI4\n",
5827 &boot_conn->dest_ipaddr.ip_address);
5828 else
5829 rc = sprintf(str, "%pI6\n",
5830 &boot_conn->dest_ipaddr.ip_address);
5831 break;
5832 case ISCSI_BOOT_TGT_PORT:
5833 rc = sprintf(str, "%d\n", boot_conn->dest_port);
5834 break;
5835 case ISCSI_BOOT_TGT_CHAP_NAME:
5836 rc = sprintf(str, "%.*s\n",
5837 boot_conn->chap.target_chap_name_length,
5838 (char *)&boot_conn->chap.target_chap_name);
5839 break;
5840 case ISCSI_BOOT_TGT_CHAP_SECRET:
5841 rc = sprintf(str, "%.*s\n",
5842 boot_conn->chap.target_secret_length,
5843 (char *)&boot_conn->chap.target_secret);
5844 break;
5845 case ISCSI_BOOT_TGT_REV_CHAP_NAME:
5846 rc = sprintf(str, "%.*s\n",
5847 boot_conn->chap.intr_chap_name_length,
5848 (char *)&boot_conn->chap.intr_chap_name);
5849 break;
5850 case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
5851 rc = sprintf(str, "%.*s\n",
5852 boot_conn->chap.intr_secret_length,
5853 (char *)&boot_conn->chap.intr_secret);
5854 break;
5855 case ISCSI_BOOT_TGT_FLAGS:
5856 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT);
5857 break;
5858 case ISCSI_BOOT_TGT_NIC_ASSOC:
5859 rc = sprintf(str, "0\n");
5860 break;
5861 default:
5862 rc = -ENOSYS;
5863 break;
5864 }
5865 return rc;
5866 }
5867
qla4xxx_show_boot_tgt_pri_info(void * data,int type,char * buf)5868 static ssize_t qla4xxx_show_boot_tgt_pri_info(void *data, int type, char *buf)
5869 {
5870 struct scsi_qla_host *ha = data;
5871 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_pri_sess);
5872
5873 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf);
5874 }
5875
qla4xxx_show_boot_tgt_sec_info(void * data,int type,char * buf)5876 static ssize_t qla4xxx_show_boot_tgt_sec_info(void *data, int type, char *buf)
5877 {
5878 struct scsi_qla_host *ha = data;
5879 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_sec_sess);
5880
5881 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf);
5882 }
5883
qla4xxx_tgt_get_attr_visibility(void * data,int type)5884 static umode_t qla4xxx_tgt_get_attr_visibility(void *data, int type)
5885 {
5886 int rc;
5887
5888 switch (type) {
5889 case ISCSI_BOOT_TGT_NAME:
5890 case ISCSI_BOOT_TGT_IP_ADDR:
5891 case ISCSI_BOOT_TGT_PORT:
5892 case ISCSI_BOOT_TGT_CHAP_NAME:
5893 case ISCSI_BOOT_TGT_CHAP_SECRET:
5894 case ISCSI_BOOT_TGT_REV_CHAP_NAME:
5895 case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
5896 case ISCSI_BOOT_TGT_NIC_ASSOC:
5897 case ISCSI_BOOT_TGT_FLAGS:
5898 rc = S_IRUGO;
5899 break;
5900 default:
5901 rc = 0;
5902 break;
5903 }
5904 return rc;
5905 }
5906
qla4xxx_boot_release(void * data)5907 static void qla4xxx_boot_release(void *data)
5908 {
5909 struct scsi_qla_host *ha = data;
5910
5911 scsi_host_put(ha->host);
5912 }
5913
get_fw_boot_info(struct scsi_qla_host * ha,uint16_t ddb_index[])5914 static int get_fw_boot_info(struct scsi_qla_host *ha, uint16_t ddb_index[])
5915 {
5916 dma_addr_t buf_dma;
5917 uint32_t addr, pri_addr, sec_addr;
5918 uint32_t offset;
5919 uint16_t func_num;
5920 uint8_t val;
5921 uint8_t *buf = NULL;
5922 size_t size = 13 * sizeof(uint8_t);
5923 int ret = QLA_SUCCESS;
5924
5925 func_num = PCI_FUNC(ha->pdev->devfn);
5926
5927 ql4_printk(KERN_INFO, ha, "%s: Get FW boot info for 0x%x func %d\n",
5928 __func__, ha->pdev->device, func_num);
5929
5930 if (is_qla40XX(ha)) {
5931 if (func_num == 1) {
5932 addr = NVRAM_PORT0_BOOT_MODE;
5933 pri_addr = NVRAM_PORT0_BOOT_PRI_TGT;
5934 sec_addr = NVRAM_PORT0_BOOT_SEC_TGT;
5935 } else if (func_num == 3) {
5936 addr = NVRAM_PORT1_BOOT_MODE;
5937 pri_addr = NVRAM_PORT1_BOOT_PRI_TGT;
5938 sec_addr = NVRAM_PORT1_BOOT_SEC_TGT;
5939 } else {
5940 ret = QLA_ERROR;
5941 goto exit_boot_info;
5942 }
5943
5944 /* Check Boot Mode */
5945 val = rd_nvram_byte(ha, addr);
5946 if (!(val & 0x07)) {
5947 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Adapter boot "
5948 "options : 0x%x\n", __func__, val));
5949 ret = QLA_ERROR;
5950 goto exit_boot_info;
5951 }
5952
5953 /* get primary valid target index */
5954 val = rd_nvram_byte(ha, pri_addr);
5955 if (val & BIT_7)
5956 ddb_index[0] = (val & 0x7f);
5957
5958 /* get secondary valid target index */
5959 val = rd_nvram_byte(ha, sec_addr);
5960 if (val & BIT_7)
5961 ddb_index[1] = (val & 0x7f);
5962 goto exit_boot_info;
5963 } else if (is_qla80XX(ha)) {
5964 buf = dma_alloc_coherent(&ha->pdev->dev, size,
5965 &buf_dma, GFP_KERNEL);
5966 if (!buf) {
5967 DEBUG2(ql4_printk(KERN_ERR, ha,
5968 "%s: Unable to allocate dma buffer\n",
5969 __func__));
5970 ret = QLA_ERROR;
5971 goto exit_boot_info;
5972 }
5973
5974 if (ha->port_num == 0)
5975 offset = BOOT_PARAM_OFFSET_PORT0;
5976 else if (ha->port_num == 1)
5977 offset = BOOT_PARAM_OFFSET_PORT1;
5978 else {
5979 ret = QLA_ERROR;
5980 goto exit_boot_info_free;
5981 }
5982 addr = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_iscsi_param * 4) +
5983 offset;
5984 if (qla4xxx_get_flash(ha, buf_dma, addr,
5985 13 * sizeof(uint8_t)) != QLA_SUCCESS) {
5986 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: Get Flash"
5987 " failed\n", ha->host_no, __func__));
5988 ret = QLA_ERROR;
5989 goto exit_boot_info_free;
5990 }
5991 /* Check Boot Mode */
5992 if (!(buf[1] & 0x07)) {
5993 DEBUG2(ql4_printk(KERN_INFO, ha, "Firmware boot options"
5994 " : 0x%x\n", buf[1]));
5995 ret = QLA_ERROR;
5996 goto exit_boot_info_free;
5997 }
5998
5999 /* get primary valid target index */
6000 if (buf[2] & BIT_7)
6001 ddb_index[0] = buf[2] & 0x7f;
6002
6003 /* get secondary valid target index */
6004 if (buf[11] & BIT_7)
6005 ddb_index[1] = buf[11] & 0x7f;
6006 } else {
6007 ret = QLA_ERROR;
6008 goto exit_boot_info;
6009 }
6010
6011 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary target ID %d, Secondary"
6012 " target ID %d\n", __func__, ddb_index[0],
6013 ddb_index[1]));
6014
6015 exit_boot_info_free:
6016 dma_free_coherent(&ha->pdev->dev, size, buf, buf_dma);
6017 exit_boot_info:
6018 ha->pri_ddb_idx = ddb_index[0];
6019 ha->sec_ddb_idx = ddb_index[1];
6020 return ret;
6021 }
6022
6023 /**
6024 * qla4xxx_get_bidi_chap - Get a BIDI CHAP user and password
6025 * @ha: pointer to adapter structure
6026 * @username: CHAP username to be returned
6027 * @password: CHAP password to be returned
6028 *
6029 * If a boot entry has BIDI CHAP enabled then we need to set the BIDI CHAP
6030 * user and password in the sysfs entry in /sys/firmware/iscsi_boot#/.
6031 * So from the CHAP cache find the first BIDI CHAP entry and set it
6032 * to the boot record in sysfs.
6033 **/
qla4xxx_get_bidi_chap(struct scsi_qla_host * ha,char * username,char * password)6034 static int qla4xxx_get_bidi_chap(struct scsi_qla_host *ha, char *username,
6035 char *password)
6036 {
6037 int i, ret = -EINVAL;
6038 int max_chap_entries = 0;
6039 struct ql4_chap_table *chap_table;
6040
6041 if (is_qla80XX(ha))
6042 max_chap_entries = (ha->hw.flt_chap_size / 2) /
6043 sizeof(struct ql4_chap_table);
6044 else
6045 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
6046
6047 if (!ha->chap_list) {
6048 ql4_printk(KERN_ERR, ha, "Do not have CHAP table cache\n");
6049 return ret;
6050 }
6051
6052 mutex_lock(&ha->chap_sem);
6053 for (i = 0; i < max_chap_entries; i++) {
6054 chap_table = (struct ql4_chap_table *)ha->chap_list + i;
6055 if (chap_table->cookie !=
6056 cpu_to_le16(CHAP_VALID_COOKIE)) {
6057 continue;
6058 }
6059
6060 if (chap_table->flags & BIT_7) /* local */
6061 continue;
6062
6063 if (!(chap_table->flags & BIT_6)) /* Not BIDI */
6064 continue;
6065
6066 strlcpy(password, chap_table->secret, QL4_CHAP_MAX_SECRET_LEN);
6067 strlcpy(username, chap_table->name, QL4_CHAP_MAX_NAME_LEN);
6068 ret = 0;
6069 break;
6070 }
6071 mutex_unlock(&ha->chap_sem);
6072
6073 return ret;
6074 }
6075
6076
qla4xxx_get_boot_target(struct scsi_qla_host * ha,struct ql4_boot_session_info * boot_sess,uint16_t ddb_index)6077 static int qla4xxx_get_boot_target(struct scsi_qla_host *ha,
6078 struct ql4_boot_session_info *boot_sess,
6079 uint16_t ddb_index)
6080 {
6081 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0];
6082 struct dev_db_entry *fw_ddb_entry;
6083 dma_addr_t fw_ddb_entry_dma;
6084 uint16_t idx;
6085 uint16_t options;
6086 int ret = QLA_SUCCESS;
6087
6088 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
6089 &fw_ddb_entry_dma, GFP_KERNEL);
6090 if (!fw_ddb_entry) {
6091 DEBUG2(ql4_printk(KERN_ERR, ha,
6092 "%s: Unable to allocate dma buffer.\n",
6093 __func__));
6094 ret = QLA_ERROR;
6095 return ret;
6096 }
6097
6098 if (qla4xxx_bootdb_by_index(ha, fw_ddb_entry,
6099 fw_ddb_entry_dma, ddb_index)) {
6100 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: No Flash DDB found at "
6101 "index [%d]\n", __func__, ddb_index));
6102 ret = QLA_ERROR;
6103 goto exit_boot_target;
6104 }
6105
6106 /* Update target name and IP from DDB */
6107 memcpy(boot_sess->target_name, fw_ddb_entry->iscsi_name,
6108 min(sizeof(boot_sess->target_name),
6109 sizeof(fw_ddb_entry->iscsi_name)));
6110
6111 options = le16_to_cpu(fw_ddb_entry->options);
6112 if (options & DDB_OPT_IPV6_DEVICE) {
6113 memcpy(&boot_conn->dest_ipaddr.ip_address,
6114 &fw_ddb_entry->ip_addr[0], IPv6_ADDR_LEN);
6115 } else {
6116 boot_conn->dest_ipaddr.ip_type = 0x1;
6117 memcpy(&boot_conn->dest_ipaddr.ip_address,
6118 &fw_ddb_entry->ip_addr[0], IP_ADDR_LEN);
6119 }
6120
6121 boot_conn->dest_port = le16_to_cpu(fw_ddb_entry->port);
6122
6123 /* update chap information */
6124 idx = __le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
6125
6126 if (BIT_7 & le16_to_cpu(fw_ddb_entry->iscsi_options)) {
6127
6128 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting chap\n"));
6129
6130 ret = qla4xxx_get_chap(ha, (char *)&boot_conn->chap.
6131 target_chap_name,
6132 (char *)&boot_conn->chap.target_secret,
6133 idx);
6134 if (ret) {
6135 ql4_printk(KERN_ERR, ha, "Failed to set chap\n");
6136 ret = QLA_ERROR;
6137 goto exit_boot_target;
6138 }
6139
6140 boot_conn->chap.target_chap_name_length = QL4_CHAP_MAX_NAME_LEN;
6141 boot_conn->chap.target_secret_length = QL4_CHAP_MAX_SECRET_LEN;
6142 }
6143
6144 if (BIT_4 & le16_to_cpu(fw_ddb_entry->iscsi_options)) {
6145
6146 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting BIDI chap\n"));
6147
6148 ret = qla4xxx_get_bidi_chap(ha,
6149 (char *)&boot_conn->chap.intr_chap_name,
6150 (char *)&boot_conn->chap.intr_secret);
6151
6152 if (ret) {
6153 ql4_printk(KERN_ERR, ha, "Failed to set BIDI chap\n");
6154 ret = QLA_ERROR;
6155 goto exit_boot_target;
6156 }
6157
6158 boot_conn->chap.intr_chap_name_length = QL4_CHAP_MAX_NAME_LEN;
6159 boot_conn->chap.intr_secret_length = QL4_CHAP_MAX_SECRET_LEN;
6160 }
6161
6162 exit_boot_target:
6163 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
6164 fw_ddb_entry, fw_ddb_entry_dma);
6165 return ret;
6166 }
6167
qla4xxx_get_boot_info(struct scsi_qla_host * ha)6168 static int qla4xxx_get_boot_info(struct scsi_qla_host *ha)
6169 {
6170 uint16_t ddb_index[2];
6171 int ret = QLA_ERROR;
6172 int rval;
6173
6174 memset(ddb_index, 0, sizeof(ddb_index));
6175 ddb_index[0] = 0xffff;
6176 ddb_index[1] = 0xffff;
6177 ret = get_fw_boot_info(ha, ddb_index);
6178 if (ret != QLA_SUCCESS) {
6179 DEBUG2(ql4_printk(KERN_INFO, ha,
6180 "%s: No boot target configured.\n", __func__));
6181 return ret;
6182 }
6183
6184 if (ql4xdisablesysfsboot)
6185 return QLA_SUCCESS;
6186
6187 if (ddb_index[0] == 0xffff)
6188 goto sec_target;
6189
6190 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_pri_sess),
6191 ddb_index[0]);
6192 if (rval != QLA_SUCCESS) {
6193 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary boot target not "
6194 "configured\n", __func__));
6195 } else
6196 ret = QLA_SUCCESS;
6197
6198 sec_target:
6199 if (ddb_index[1] == 0xffff)
6200 goto exit_get_boot_info;
6201
6202 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_sec_sess),
6203 ddb_index[1]);
6204 if (rval != QLA_SUCCESS) {
6205 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Secondary boot target not"
6206 " configured\n", __func__));
6207 } else
6208 ret = QLA_SUCCESS;
6209
6210 exit_get_boot_info:
6211 return ret;
6212 }
6213
qla4xxx_setup_boot_info(struct scsi_qla_host * ha)6214 static int qla4xxx_setup_boot_info(struct scsi_qla_host *ha)
6215 {
6216 struct iscsi_boot_kobj *boot_kobj;
6217
6218 if (qla4xxx_get_boot_info(ha) != QLA_SUCCESS)
6219 return QLA_ERROR;
6220
6221 if (ql4xdisablesysfsboot) {
6222 ql4_printk(KERN_INFO, ha,
6223 "%s: syfsboot disabled - driver will trigger login "
6224 "and publish session for discovery .\n", __func__);
6225 return QLA_SUCCESS;
6226 }
6227
6228
6229 ha->boot_kset = iscsi_boot_create_host_kset(ha->host->host_no);
6230 if (!ha->boot_kset)
6231 goto kset_free;
6232
6233 if (!scsi_host_get(ha->host))
6234 goto kset_free;
6235 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 0, ha,
6236 qla4xxx_show_boot_tgt_pri_info,
6237 qla4xxx_tgt_get_attr_visibility,
6238 qla4xxx_boot_release);
6239 if (!boot_kobj)
6240 goto put_host;
6241
6242 if (!scsi_host_get(ha->host))
6243 goto kset_free;
6244 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 1, ha,
6245 qla4xxx_show_boot_tgt_sec_info,
6246 qla4xxx_tgt_get_attr_visibility,
6247 qla4xxx_boot_release);
6248 if (!boot_kobj)
6249 goto put_host;
6250
6251 if (!scsi_host_get(ha->host))
6252 goto kset_free;
6253 boot_kobj = iscsi_boot_create_initiator(ha->boot_kset, 0, ha,
6254 qla4xxx_show_boot_ini_info,
6255 qla4xxx_ini_get_attr_visibility,
6256 qla4xxx_boot_release);
6257 if (!boot_kobj)
6258 goto put_host;
6259
6260 if (!scsi_host_get(ha->host))
6261 goto kset_free;
6262 boot_kobj = iscsi_boot_create_ethernet(ha->boot_kset, 0, ha,
6263 qla4xxx_show_boot_eth_info,
6264 qla4xxx_eth_get_attr_visibility,
6265 qla4xxx_boot_release);
6266 if (!boot_kobj)
6267 goto put_host;
6268
6269 return QLA_SUCCESS;
6270
6271 put_host:
6272 scsi_host_put(ha->host);
6273 kset_free:
6274 iscsi_boot_destroy_kset(ha->boot_kset);
6275 return -ENOMEM;
6276 }
6277
6278
qla4xxx_get_param_ddb(struct ddb_entry * ddb_entry,struct ql4_tuple_ddb * tddb)6279 static void qla4xxx_get_param_ddb(struct ddb_entry *ddb_entry,
6280 struct ql4_tuple_ddb *tddb)
6281 {
6282 struct iscsi_cls_session *cls_sess;
6283 struct iscsi_cls_conn *cls_conn;
6284 struct iscsi_session *sess;
6285 struct iscsi_conn *conn;
6286
6287 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
6288 cls_sess = ddb_entry->sess;
6289 sess = cls_sess->dd_data;
6290 cls_conn = ddb_entry->conn;
6291 conn = cls_conn->dd_data;
6292
6293 tddb->tpgt = sess->tpgt;
6294 tddb->port = conn->persistent_port;
6295 strlcpy(tddb->iscsi_name, sess->targetname, ISCSI_NAME_SIZE);
6296 strlcpy(tddb->ip_addr, conn->persistent_address, DDB_IPADDR_LEN);
6297 }
6298
qla4xxx_convert_param_ddb(struct dev_db_entry * fw_ddb_entry,struct ql4_tuple_ddb * tddb,uint8_t * flash_isid)6299 static void qla4xxx_convert_param_ddb(struct dev_db_entry *fw_ddb_entry,
6300 struct ql4_tuple_ddb *tddb,
6301 uint8_t *flash_isid)
6302 {
6303 uint16_t options = 0;
6304
6305 tddb->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
6306 memcpy(&tddb->iscsi_name[0], &fw_ddb_entry->iscsi_name[0],
6307 min(sizeof(tddb->iscsi_name), sizeof(fw_ddb_entry->iscsi_name)));
6308
6309 options = le16_to_cpu(fw_ddb_entry->options);
6310 if (options & DDB_OPT_IPV6_DEVICE)
6311 sprintf(tddb->ip_addr, "%pI6", fw_ddb_entry->ip_addr);
6312 else
6313 sprintf(tddb->ip_addr, "%pI4", fw_ddb_entry->ip_addr);
6314
6315 tddb->port = le16_to_cpu(fw_ddb_entry->port);
6316
6317 if (flash_isid == NULL)
6318 memcpy(&tddb->isid[0], &fw_ddb_entry->isid[0],
6319 sizeof(tddb->isid));
6320 else
6321 memcpy(&tddb->isid[0], &flash_isid[0], sizeof(tddb->isid));
6322 }
6323
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)6324 static int qla4xxx_compare_tuple_ddb(struct scsi_qla_host *ha,
6325 struct ql4_tuple_ddb *old_tddb,
6326 struct ql4_tuple_ddb *new_tddb,
6327 uint8_t is_isid_compare)
6328 {
6329 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name))
6330 return QLA_ERROR;
6331
6332 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr))
6333 return QLA_ERROR;
6334
6335 if (old_tddb->port != new_tddb->port)
6336 return QLA_ERROR;
6337
6338 /* For multi sessions, driver generates the ISID, so do not compare
6339 * ISID in reset path since it would be a comparison between the
6340 * driver generated ISID and firmware generated ISID. This could
6341 * lead to adding duplicated DDBs in the list as driver generated
6342 * ISID would not match firmware generated ISID.
6343 */
6344 if (is_isid_compare) {
6345 DEBUG2(ql4_printk(KERN_INFO, ha,
6346 "%s: old ISID [%pmR] New ISID [%pmR]\n",
6347 __func__, old_tddb->isid, new_tddb->isid));
6348
6349 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0],
6350 sizeof(old_tddb->isid)))
6351 return QLA_ERROR;
6352 }
6353
6354 DEBUG2(ql4_printk(KERN_INFO, ha,
6355 "Match Found, fw[%d,%d,%s,%s], [%d,%d,%s,%s]",
6356 old_tddb->port, old_tddb->tpgt, old_tddb->ip_addr,
6357 old_tddb->iscsi_name, new_tddb->port, new_tddb->tpgt,
6358 new_tddb->ip_addr, new_tddb->iscsi_name));
6359
6360 return QLA_SUCCESS;
6361 }
6362
qla4xxx_is_session_exists(struct scsi_qla_host * ha,struct dev_db_entry * fw_ddb_entry,uint32_t * index)6363 static int qla4xxx_is_session_exists(struct scsi_qla_host *ha,
6364 struct dev_db_entry *fw_ddb_entry,
6365 uint32_t *index)
6366 {
6367 struct ddb_entry *ddb_entry;
6368 struct ql4_tuple_ddb *fw_tddb = NULL;
6369 struct ql4_tuple_ddb *tmp_tddb = NULL;
6370 int idx;
6371 int ret = QLA_ERROR;
6372
6373 fw_tddb = vzalloc(sizeof(*fw_tddb));
6374 if (!fw_tddb) {
6375 DEBUG2(ql4_printk(KERN_WARNING, ha,
6376 "Memory Allocation failed.\n"));
6377 ret = QLA_SUCCESS;
6378 goto exit_check;
6379 }
6380
6381 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
6382 if (!tmp_tddb) {
6383 DEBUG2(ql4_printk(KERN_WARNING, ha,
6384 "Memory Allocation failed.\n"));
6385 ret = QLA_SUCCESS;
6386 goto exit_check;
6387 }
6388
6389 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL);
6390
6391 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
6392 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
6393 if (ddb_entry == NULL)
6394 continue;
6395
6396 qla4xxx_get_param_ddb(ddb_entry, tmp_tddb);
6397 if (!qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, false)) {
6398 ret = QLA_SUCCESS; /* found */
6399 if (index != NULL)
6400 *index = idx;
6401 goto exit_check;
6402 }
6403 }
6404
6405 exit_check:
6406 vfree(fw_tddb);
6407 vfree(tmp_tddb);
6408 return ret;
6409 }
6410
6411 /**
6412 * qla4xxx_check_existing_isid - check if target with same isid exist
6413 * in target list
6414 * @list_nt: list of target
6415 * @isid: isid to check
6416 *
6417 * This routine return QLA_SUCCESS if target with same isid exist
6418 **/
qla4xxx_check_existing_isid(struct list_head * list_nt,uint8_t * isid)6419 static int qla4xxx_check_existing_isid(struct list_head *list_nt, uint8_t *isid)
6420 {
6421 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp;
6422 struct dev_db_entry *fw_ddb_entry;
6423
6424 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
6425 fw_ddb_entry = &nt_ddb_idx->fw_ddb;
6426
6427 if (memcmp(&fw_ddb_entry->isid[0], &isid[0],
6428 sizeof(nt_ddb_idx->fw_ddb.isid)) == 0) {
6429 return QLA_SUCCESS;
6430 }
6431 }
6432 return QLA_ERROR;
6433 }
6434
6435 /**
6436 * qla4xxx_update_isid - compare ddbs and updated isid
6437 * @ha: Pointer to host adapter structure.
6438 * @list_nt: list of nt target
6439 * @fw_ddb_entry: firmware ddb entry
6440 *
6441 * This routine update isid if ddbs have same iqn, same isid and
6442 * different IP addr.
6443 * Return QLA_SUCCESS if isid is updated.
6444 **/
qla4xxx_update_isid(struct scsi_qla_host * ha,struct list_head * list_nt,struct dev_db_entry * fw_ddb_entry)6445 static int qla4xxx_update_isid(struct scsi_qla_host *ha,
6446 struct list_head *list_nt,
6447 struct dev_db_entry *fw_ddb_entry)
6448 {
6449 uint8_t base_value, i;
6450
6451 base_value = fw_ddb_entry->isid[1] & 0x1f;
6452 for (i = 0; i < 8; i++) {
6453 fw_ddb_entry->isid[1] = (base_value | (i << 5));
6454 if (qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid))
6455 break;
6456 }
6457
6458 if (!qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid))
6459 return QLA_ERROR;
6460
6461 return QLA_SUCCESS;
6462 }
6463
6464 /**
6465 * qla4xxx_should_update_isid - check if isid need to update
6466 * @ha: Pointer to host adapter structure.
6467 * @old_tddb: ddb tuple
6468 * @new_tddb: ddb tuple
6469 *
6470 * Return QLA_SUCCESS if different IP, different PORT, same iqn,
6471 * same isid
6472 **/
qla4xxx_should_update_isid(struct scsi_qla_host * ha,struct ql4_tuple_ddb * old_tddb,struct ql4_tuple_ddb * new_tddb)6473 static int qla4xxx_should_update_isid(struct scsi_qla_host *ha,
6474 struct ql4_tuple_ddb *old_tddb,
6475 struct ql4_tuple_ddb *new_tddb)
6476 {
6477 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr) == 0) {
6478 /* Same ip */
6479 if (old_tddb->port == new_tddb->port)
6480 return QLA_ERROR;
6481 }
6482
6483 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name))
6484 /* different iqn */
6485 return QLA_ERROR;
6486
6487 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0],
6488 sizeof(old_tddb->isid)))
6489 /* different isid */
6490 return QLA_ERROR;
6491
6492 return QLA_SUCCESS;
6493 }
6494
6495 /**
6496 * qla4xxx_is_flash_ddb_exists - check if fw_ddb_entry already exists in list_nt
6497 * @ha: Pointer to host adapter structure.
6498 * @list_nt: list of nt target.
6499 * @fw_ddb_entry: firmware ddb entry.
6500 *
6501 * This routine check if fw_ddb_entry already exists in list_nt to avoid
6502 * duplicate ddb in list_nt.
6503 * Return QLA_SUCCESS if duplicate ddb exit in list_nl.
6504 * Note: This function also update isid of DDB if required.
6505 **/
6506
qla4xxx_is_flash_ddb_exists(struct scsi_qla_host * ha,struct list_head * list_nt,struct dev_db_entry * fw_ddb_entry)6507 static int qla4xxx_is_flash_ddb_exists(struct scsi_qla_host *ha,
6508 struct list_head *list_nt,
6509 struct dev_db_entry *fw_ddb_entry)
6510 {
6511 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp;
6512 struct ql4_tuple_ddb *fw_tddb = NULL;
6513 struct ql4_tuple_ddb *tmp_tddb = NULL;
6514 int rval, ret = QLA_ERROR;
6515
6516 fw_tddb = vzalloc(sizeof(*fw_tddb));
6517 if (!fw_tddb) {
6518 DEBUG2(ql4_printk(KERN_WARNING, ha,
6519 "Memory Allocation failed.\n"));
6520 ret = QLA_SUCCESS;
6521 goto exit_check;
6522 }
6523
6524 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
6525 if (!tmp_tddb) {
6526 DEBUG2(ql4_printk(KERN_WARNING, ha,
6527 "Memory Allocation failed.\n"));
6528 ret = QLA_SUCCESS;
6529 goto exit_check;
6530 }
6531
6532 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL);
6533
6534 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
6535 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb,
6536 nt_ddb_idx->flash_isid);
6537 ret = qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, true);
6538 /* found duplicate ddb */
6539 if (ret == QLA_SUCCESS)
6540 goto exit_check;
6541 }
6542
6543 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
6544 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb, NULL);
6545
6546 ret = qla4xxx_should_update_isid(ha, tmp_tddb, fw_tddb);
6547 if (ret == QLA_SUCCESS) {
6548 rval = qla4xxx_update_isid(ha, list_nt, fw_ddb_entry);
6549 if (rval == QLA_SUCCESS)
6550 ret = QLA_ERROR;
6551 else
6552 ret = QLA_SUCCESS;
6553
6554 goto exit_check;
6555 }
6556 }
6557
6558 exit_check:
6559 vfree(fw_tddb);
6560 vfree(tmp_tddb);
6561 return ret;
6562 }
6563
qla4xxx_free_ddb_list(struct list_head * list_ddb)6564 static void qla4xxx_free_ddb_list(struct list_head *list_ddb)
6565 {
6566 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
6567
6568 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
6569 list_del_init(&ddb_idx->list);
6570 vfree(ddb_idx);
6571 }
6572 }
6573
qla4xxx_get_ep_fwdb(struct scsi_qla_host * ha,struct dev_db_entry * fw_ddb_entry)6574 static struct iscsi_endpoint *qla4xxx_get_ep_fwdb(struct scsi_qla_host *ha,
6575 struct dev_db_entry *fw_ddb_entry)
6576 {
6577 struct iscsi_endpoint *ep;
6578 struct sockaddr_in *addr;
6579 struct sockaddr_in6 *addr6;
6580 struct sockaddr *t_addr;
6581 struct sockaddr_storage *dst_addr;
6582 char *ip;
6583
6584 /* TODO: need to destroy on unload iscsi_endpoint*/
6585 dst_addr = vmalloc(sizeof(*dst_addr));
6586 if (!dst_addr)
6587 return NULL;
6588
6589 if (fw_ddb_entry->options & DDB_OPT_IPV6_DEVICE) {
6590 t_addr = (struct sockaddr *)dst_addr;
6591 t_addr->sa_family = AF_INET6;
6592 addr6 = (struct sockaddr_in6 *)dst_addr;
6593 ip = (char *)&addr6->sin6_addr;
6594 memcpy(ip, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN);
6595 addr6->sin6_port = htons(le16_to_cpu(fw_ddb_entry->port));
6596
6597 } else {
6598 t_addr = (struct sockaddr *)dst_addr;
6599 t_addr->sa_family = AF_INET;
6600 addr = (struct sockaddr_in *)dst_addr;
6601 ip = (char *)&addr->sin_addr;
6602 memcpy(ip, fw_ddb_entry->ip_addr, IP_ADDR_LEN);
6603 addr->sin_port = htons(le16_to_cpu(fw_ddb_entry->port));
6604 }
6605
6606 ep = qla4xxx_ep_connect(ha->host, (struct sockaddr *)dst_addr, 0);
6607 vfree(dst_addr);
6608 return ep;
6609 }
6610
qla4xxx_verify_boot_idx(struct scsi_qla_host * ha,uint16_t idx)6611 static int qla4xxx_verify_boot_idx(struct scsi_qla_host *ha, uint16_t idx)
6612 {
6613 if (ql4xdisablesysfsboot)
6614 return QLA_SUCCESS;
6615 if (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx)
6616 return QLA_ERROR;
6617 return QLA_SUCCESS;
6618 }
6619
qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host * ha,struct ddb_entry * ddb_entry,uint16_t idx)6620 static void qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha,
6621 struct ddb_entry *ddb_entry,
6622 uint16_t idx)
6623 {
6624 uint16_t def_timeout;
6625
6626 ddb_entry->ddb_type = FLASH_DDB;
6627 ddb_entry->fw_ddb_index = INVALID_ENTRY;
6628 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE;
6629 ddb_entry->ha = ha;
6630 ddb_entry->unblock_sess = qla4xxx_unblock_flash_ddb;
6631 ddb_entry->ddb_change = qla4xxx_flash_ddb_change;
6632 ddb_entry->chap_tbl_idx = INVALID_ENTRY;
6633
6634 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY);
6635 atomic_set(&ddb_entry->relogin_timer, 0);
6636 atomic_set(&ddb_entry->relogin_retry_count, 0);
6637 def_timeout = le16_to_cpu(ddb_entry->fw_ddb_entry.def_timeout);
6638 ddb_entry->default_relogin_timeout =
6639 (def_timeout > LOGIN_TOV) && (def_timeout < LOGIN_TOV * 10) ?
6640 def_timeout : LOGIN_TOV;
6641 ddb_entry->default_time2wait =
6642 le16_to_cpu(ddb_entry->fw_ddb_entry.iscsi_def_time2wait);
6643
6644 if (ql4xdisablesysfsboot &&
6645 (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx))
6646 set_bit(DF_BOOT_TGT, &ddb_entry->flags);
6647 }
6648
qla4xxx_wait_for_ip_configuration(struct scsi_qla_host * ha)6649 static void qla4xxx_wait_for_ip_configuration(struct scsi_qla_host *ha)
6650 {
6651 uint32_t idx = 0;
6652 uint32_t ip_idx[IP_ADDR_COUNT] = {0, 1, 2, 3}; /* 4 IP interfaces */
6653 uint32_t sts[MBOX_REG_COUNT];
6654 uint32_t ip_state;
6655 unsigned long wtime;
6656 int ret;
6657
6658 wtime = jiffies + (HZ * IP_CONFIG_TOV);
6659 do {
6660 for (idx = 0; idx < IP_ADDR_COUNT; idx++) {
6661 if (ip_idx[idx] == -1)
6662 continue;
6663
6664 ret = qla4xxx_get_ip_state(ha, 0, ip_idx[idx], sts);
6665
6666 if (ret == QLA_ERROR) {
6667 ip_idx[idx] = -1;
6668 continue;
6669 }
6670
6671 ip_state = (sts[1] & IP_STATE_MASK) >> IP_STATE_SHIFT;
6672
6673 DEBUG2(ql4_printk(KERN_INFO, ha,
6674 "Waiting for IP state for idx = %d, state = 0x%x\n",
6675 ip_idx[idx], ip_state));
6676 if (ip_state == IP_ADDRSTATE_UNCONFIGURED ||
6677 ip_state == IP_ADDRSTATE_INVALID ||
6678 ip_state == IP_ADDRSTATE_PREFERRED ||
6679 ip_state == IP_ADDRSTATE_DEPRICATED ||
6680 ip_state == IP_ADDRSTATE_DISABLING)
6681 ip_idx[idx] = -1;
6682 }
6683
6684 /* Break if all IP states checked */
6685 if ((ip_idx[0] == -1) &&
6686 (ip_idx[1] == -1) &&
6687 (ip_idx[2] == -1) &&
6688 (ip_idx[3] == -1))
6689 break;
6690 schedule_timeout_uninterruptible(HZ);
6691 } while (time_after(wtime, jiffies));
6692 }
6693
qla4xxx_cmp_fw_stentry(struct dev_db_entry * fw_ddb_entry,struct dev_db_entry * flash_ddb_entry)6694 static int qla4xxx_cmp_fw_stentry(struct dev_db_entry *fw_ddb_entry,
6695 struct dev_db_entry *flash_ddb_entry)
6696 {
6697 uint16_t options = 0;
6698 size_t ip_len = IP_ADDR_LEN;
6699
6700 options = le16_to_cpu(fw_ddb_entry->options);
6701 if (options & DDB_OPT_IPV6_DEVICE)
6702 ip_len = IPv6_ADDR_LEN;
6703
6704 if (memcmp(fw_ddb_entry->ip_addr, flash_ddb_entry->ip_addr, ip_len))
6705 return QLA_ERROR;
6706
6707 if (memcmp(&fw_ddb_entry->isid[0], &flash_ddb_entry->isid[0],
6708 sizeof(fw_ddb_entry->isid)))
6709 return QLA_ERROR;
6710
6711 if (memcmp(&fw_ddb_entry->port, &flash_ddb_entry->port,
6712 sizeof(fw_ddb_entry->port)))
6713 return QLA_ERROR;
6714
6715 return QLA_SUCCESS;
6716 }
6717
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)6718 static int qla4xxx_find_flash_st_idx(struct scsi_qla_host *ha,
6719 struct dev_db_entry *fw_ddb_entry,
6720 uint32_t fw_idx, uint32_t *flash_index)
6721 {
6722 struct dev_db_entry *flash_ddb_entry;
6723 dma_addr_t flash_ddb_entry_dma;
6724 uint32_t idx = 0;
6725 int max_ddbs;
6726 int ret = QLA_ERROR, status;
6727
6728 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
6729 MAX_DEV_DB_ENTRIES;
6730
6731 flash_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
6732 &flash_ddb_entry_dma);
6733 if (flash_ddb_entry == NULL || fw_ddb_entry == NULL) {
6734 ql4_printk(KERN_ERR, ha, "Out of memory\n");
6735 goto exit_find_st_idx;
6736 }
6737
6738 status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry,
6739 flash_ddb_entry_dma, fw_idx);
6740 if (status == QLA_SUCCESS) {
6741 status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry);
6742 if (status == QLA_SUCCESS) {
6743 *flash_index = fw_idx;
6744 ret = QLA_SUCCESS;
6745 goto exit_find_st_idx;
6746 }
6747 }
6748
6749 for (idx = 0; idx < max_ddbs; idx++) {
6750 status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry,
6751 flash_ddb_entry_dma, idx);
6752 if (status == QLA_ERROR)
6753 continue;
6754
6755 status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry);
6756 if (status == QLA_SUCCESS) {
6757 *flash_index = idx;
6758 ret = QLA_SUCCESS;
6759 goto exit_find_st_idx;
6760 }
6761 }
6762
6763 if (idx == max_ddbs)
6764 ql4_printk(KERN_ERR, ha, "Failed to find ST [%d] in flash\n",
6765 fw_idx);
6766
6767 exit_find_st_idx:
6768 if (flash_ddb_entry)
6769 dma_pool_free(ha->fw_ddb_dma_pool, flash_ddb_entry,
6770 flash_ddb_entry_dma);
6771
6772 return ret;
6773 }
6774
qla4xxx_build_st_list(struct scsi_qla_host * ha,struct list_head * list_st)6775 static void qla4xxx_build_st_list(struct scsi_qla_host *ha,
6776 struct list_head *list_st)
6777 {
6778 struct qla_ddb_index *st_ddb_idx;
6779 int max_ddbs;
6780 int fw_idx_size;
6781 struct dev_db_entry *fw_ddb_entry;
6782 dma_addr_t fw_ddb_dma;
6783 int ret;
6784 uint32_t idx = 0, next_idx = 0;
6785 uint32_t state = 0, conn_err = 0;
6786 uint32_t flash_index = -1;
6787 uint16_t conn_id = 0;
6788
6789 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
6790 &fw_ddb_dma);
6791 if (fw_ddb_entry == NULL) {
6792 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
6793 goto exit_st_list;
6794 }
6795
6796 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
6797 MAX_DEV_DB_ENTRIES;
6798 fw_idx_size = sizeof(struct qla_ddb_index);
6799
6800 for (idx = 0; idx < max_ddbs; idx = next_idx) {
6801 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
6802 NULL, &next_idx, &state,
6803 &conn_err, NULL, &conn_id);
6804 if (ret == QLA_ERROR)
6805 break;
6806
6807 /* Ignore DDB if invalid state (unassigned) */
6808 if (state == DDB_DS_UNASSIGNED)
6809 goto continue_next_st;
6810
6811 /* Check if ST, add to the list_st */
6812 if (strlen((char *) fw_ddb_entry->iscsi_name) != 0)
6813 goto continue_next_st;
6814
6815 st_ddb_idx = vzalloc(fw_idx_size);
6816 if (!st_ddb_idx)
6817 break;
6818
6819 ret = qla4xxx_find_flash_st_idx(ha, fw_ddb_entry, idx,
6820 &flash_index);
6821 if (ret == QLA_ERROR) {
6822 ql4_printk(KERN_ERR, ha,
6823 "No flash entry for ST at idx [%d]\n", idx);
6824 st_ddb_idx->flash_ddb_idx = idx;
6825 } else {
6826 ql4_printk(KERN_INFO, ha,
6827 "ST at idx [%d] is stored at flash [%d]\n",
6828 idx, flash_index);
6829 st_ddb_idx->flash_ddb_idx = flash_index;
6830 }
6831
6832 st_ddb_idx->fw_ddb_idx = idx;
6833
6834 list_add_tail(&st_ddb_idx->list, list_st);
6835 continue_next_st:
6836 if (next_idx == 0)
6837 break;
6838 }
6839
6840 exit_st_list:
6841 if (fw_ddb_entry)
6842 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
6843 }
6844
6845 /**
6846 * qla4xxx_remove_failed_ddb - Remove inactive or failed ddb from list
6847 * @ha: pointer to adapter structure
6848 * @list_ddb: List from which failed ddb to be removed
6849 *
6850 * Iterate over the list of DDBs and find and remove DDBs that are either in
6851 * no connection active state or failed state
6852 **/
qla4xxx_remove_failed_ddb(struct scsi_qla_host * ha,struct list_head * list_ddb)6853 static void qla4xxx_remove_failed_ddb(struct scsi_qla_host *ha,
6854 struct list_head *list_ddb)
6855 {
6856 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
6857 uint32_t next_idx = 0;
6858 uint32_t state = 0, conn_err = 0;
6859 int ret;
6860
6861 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
6862 ret = qla4xxx_get_fwddb_entry(ha, ddb_idx->fw_ddb_idx,
6863 NULL, 0, NULL, &next_idx, &state,
6864 &conn_err, NULL, NULL);
6865 if (ret == QLA_ERROR)
6866 continue;
6867
6868 if (state == DDB_DS_NO_CONNECTION_ACTIVE ||
6869 state == DDB_DS_SESSION_FAILED) {
6870 list_del_init(&ddb_idx->list);
6871 vfree(ddb_idx);
6872 }
6873 }
6874 }
6875
qla4xxx_update_sess_disc_idx(struct scsi_qla_host * ha,struct ddb_entry * ddb_entry,struct dev_db_entry * fw_ddb_entry)6876 static void qla4xxx_update_sess_disc_idx(struct scsi_qla_host *ha,
6877 struct ddb_entry *ddb_entry,
6878 struct dev_db_entry *fw_ddb_entry)
6879 {
6880 struct iscsi_cls_session *cls_sess;
6881 struct iscsi_session *sess;
6882 uint32_t max_ddbs = 0;
6883 uint16_t ddb_link = -1;
6884
6885 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
6886 MAX_DEV_DB_ENTRIES;
6887
6888 cls_sess = ddb_entry->sess;
6889 sess = cls_sess->dd_data;
6890
6891 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
6892 if (ddb_link < max_ddbs)
6893 sess->discovery_parent_idx = ddb_link;
6894 else
6895 sess->discovery_parent_idx = DDB_NO_LINK;
6896 }
6897
qla4xxx_sess_conn_setup(struct scsi_qla_host * ha,struct dev_db_entry * fw_ddb_entry,int is_reset,uint16_t idx)6898 static int qla4xxx_sess_conn_setup(struct scsi_qla_host *ha,
6899 struct dev_db_entry *fw_ddb_entry,
6900 int is_reset, uint16_t idx)
6901 {
6902 struct iscsi_cls_session *cls_sess;
6903 struct iscsi_session *sess;
6904 struct iscsi_cls_conn *cls_conn;
6905 struct iscsi_endpoint *ep;
6906 uint16_t cmds_max = 32;
6907 uint16_t conn_id = 0;
6908 uint32_t initial_cmdsn = 0;
6909 int ret = QLA_SUCCESS;
6910
6911 struct ddb_entry *ddb_entry = NULL;
6912
6913 /* Create session object, with INVALID_ENTRY,
6914 * the targer_id would get set when we issue the login
6915 */
6916 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, ha->host,
6917 cmds_max, sizeof(struct ddb_entry),
6918 sizeof(struct ql4_task_data),
6919 initial_cmdsn, INVALID_ENTRY);
6920 if (!cls_sess) {
6921 ret = QLA_ERROR;
6922 goto exit_setup;
6923 }
6924
6925 /*
6926 * so calling module_put function to decrement the
6927 * reference count.
6928 **/
6929 module_put(qla4xxx_iscsi_transport.owner);
6930 sess = cls_sess->dd_data;
6931 ddb_entry = sess->dd_data;
6932 ddb_entry->sess = cls_sess;
6933
6934 cls_sess->recovery_tmo = ql4xsess_recovery_tmo;
6935 memcpy(&ddb_entry->fw_ddb_entry, fw_ddb_entry,
6936 sizeof(struct dev_db_entry));
6937
6938 qla4xxx_setup_flash_ddb_entry(ha, ddb_entry, idx);
6939
6940 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), conn_id);
6941
6942 if (!cls_conn) {
6943 ret = QLA_ERROR;
6944 goto exit_setup;
6945 }
6946
6947 ddb_entry->conn = cls_conn;
6948
6949 /* Setup ep, for displaying attributes in sysfs */
6950 ep = qla4xxx_get_ep_fwdb(ha, fw_ddb_entry);
6951 if (ep) {
6952 ep->conn = cls_conn;
6953 cls_conn->ep = ep;
6954 } else {
6955 DEBUG2(ql4_printk(KERN_ERR, ha, "Unable to get ep\n"));
6956 ret = QLA_ERROR;
6957 goto exit_setup;
6958 }
6959
6960 /* Update sess/conn params */
6961 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn);
6962 qla4xxx_update_sess_disc_idx(ha, ddb_entry, fw_ddb_entry);
6963
6964 if (is_reset == RESET_ADAPTER) {
6965 iscsi_block_session(cls_sess);
6966 /* Use the relogin path to discover new devices
6967 * by short-circuiting the logic of setting
6968 * timer to relogin - instead set the flags
6969 * to initiate login right away.
6970 */
6971 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
6972 set_bit(DF_RELOGIN, &ddb_entry->flags);
6973 }
6974
6975 exit_setup:
6976 return ret;
6977 }
6978
qla4xxx_update_fw_ddb_link(struct scsi_qla_host * ha,struct list_head * list_ddb,struct dev_db_entry * fw_ddb_entry)6979 static void qla4xxx_update_fw_ddb_link(struct scsi_qla_host *ha,
6980 struct list_head *list_ddb,
6981 struct dev_db_entry *fw_ddb_entry)
6982 {
6983 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
6984 uint16_t ddb_link;
6985
6986 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
6987
6988 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
6989 if (ddb_idx->fw_ddb_idx == ddb_link) {
6990 DEBUG2(ql4_printk(KERN_INFO, ha,
6991 "Updating NT parent idx from [%d] to [%d]\n",
6992 ddb_link, ddb_idx->flash_ddb_idx));
6993 fw_ddb_entry->ddb_link =
6994 cpu_to_le16(ddb_idx->flash_ddb_idx);
6995 return;
6996 }
6997 }
6998 }
6999
qla4xxx_build_nt_list(struct scsi_qla_host * ha,struct list_head * list_nt,struct list_head * list_st,int is_reset)7000 static void qla4xxx_build_nt_list(struct scsi_qla_host *ha,
7001 struct list_head *list_nt,
7002 struct list_head *list_st,
7003 int is_reset)
7004 {
7005 struct dev_db_entry *fw_ddb_entry;
7006 struct ddb_entry *ddb_entry = NULL;
7007 dma_addr_t fw_ddb_dma;
7008 int max_ddbs;
7009 int fw_idx_size;
7010 int ret;
7011 uint32_t idx = 0, next_idx = 0;
7012 uint32_t state = 0, conn_err = 0;
7013 uint32_t ddb_idx = -1;
7014 uint16_t conn_id = 0;
7015 uint16_t ddb_link = -1;
7016 struct qla_ddb_index *nt_ddb_idx;
7017
7018 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
7019 &fw_ddb_dma);
7020 if (fw_ddb_entry == NULL) {
7021 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
7022 goto exit_nt_list;
7023 }
7024 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
7025 MAX_DEV_DB_ENTRIES;
7026 fw_idx_size = sizeof(struct qla_ddb_index);
7027
7028 for (idx = 0; idx < max_ddbs; idx = next_idx) {
7029 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
7030 NULL, &next_idx, &state,
7031 &conn_err, NULL, &conn_id);
7032 if (ret == QLA_ERROR)
7033 break;
7034
7035 if (qla4xxx_verify_boot_idx(ha, idx) != QLA_SUCCESS)
7036 goto continue_next_nt;
7037
7038 /* Check if NT, then add to list it */
7039 if (strlen((char *) fw_ddb_entry->iscsi_name) == 0)
7040 goto continue_next_nt;
7041
7042 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
7043 if (ddb_link < max_ddbs)
7044 qla4xxx_update_fw_ddb_link(ha, list_st, fw_ddb_entry);
7045
7046 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE ||
7047 state == DDB_DS_SESSION_FAILED) &&
7048 (is_reset == INIT_ADAPTER))
7049 goto continue_next_nt;
7050
7051 DEBUG2(ql4_printk(KERN_INFO, ha,
7052 "Adding DDB to session = 0x%x\n", idx));
7053
7054 if (is_reset == INIT_ADAPTER) {
7055 nt_ddb_idx = vmalloc(fw_idx_size);
7056 if (!nt_ddb_idx)
7057 break;
7058
7059 nt_ddb_idx->fw_ddb_idx = idx;
7060
7061 /* Copy original isid as it may get updated in function
7062 * qla4xxx_update_isid(). We need original isid in
7063 * function qla4xxx_compare_tuple_ddb to find duplicate
7064 * target */
7065 memcpy(&nt_ddb_idx->flash_isid[0],
7066 &fw_ddb_entry->isid[0],
7067 sizeof(nt_ddb_idx->flash_isid));
7068
7069 ret = qla4xxx_is_flash_ddb_exists(ha, list_nt,
7070 fw_ddb_entry);
7071 if (ret == QLA_SUCCESS) {
7072 /* free nt_ddb_idx and do not add to list_nt */
7073 vfree(nt_ddb_idx);
7074 goto continue_next_nt;
7075 }
7076
7077 /* Copy updated isid */
7078 memcpy(&nt_ddb_idx->fw_ddb, fw_ddb_entry,
7079 sizeof(struct dev_db_entry));
7080
7081 list_add_tail(&nt_ddb_idx->list, list_nt);
7082 } else if (is_reset == RESET_ADAPTER) {
7083 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry,
7084 &ddb_idx);
7085 if (ret == QLA_SUCCESS) {
7086 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha,
7087 ddb_idx);
7088 if (ddb_entry != NULL)
7089 qla4xxx_update_sess_disc_idx(ha,
7090 ddb_entry,
7091 fw_ddb_entry);
7092 goto continue_next_nt;
7093 }
7094 }
7095
7096 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, is_reset, idx);
7097 if (ret == QLA_ERROR)
7098 goto exit_nt_list;
7099
7100 continue_next_nt:
7101 if (next_idx == 0)
7102 break;
7103 }
7104
7105 exit_nt_list:
7106 if (fw_ddb_entry)
7107 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
7108 }
7109
qla4xxx_build_new_nt_list(struct scsi_qla_host * ha,struct list_head * list_nt,uint16_t target_id)7110 static void qla4xxx_build_new_nt_list(struct scsi_qla_host *ha,
7111 struct list_head *list_nt,
7112 uint16_t target_id)
7113 {
7114 struct dev_db_entry *fw_ddb_entry;
7115 dma_addr_t fw_ddb_dma;
7116 int max_ddbs;
7117 int fw_idx_size;
7118 int ret;
7119 uint32_t idx = 0, next_idx = 0;
7120 uint32_t state = 0, conn_err = 0;
7121 uint16_t conn_id = 0;
7122 struct qla_ddb_index *nt_ddb_idx;
7123
7124 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
7125 &fw_ddb_dma);
7126 if (fw_ddb_entry == NULL) {
7127 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
7128 goto exit_new_nt_list;
7129 }
7130 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
7131 MAX_DEV_DB_ENTRIES;
7132 fw_idx_size = sizeof(struct qla_ddb_index);
7133
7134 for (idx = 0; idx < max_ddbs; idx = next_idx) {
7135 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
7136 NULL, &next_idx, &state,
7137 &conn_err, NULL, &conn_id);
7138 if (ret == QLA_ERROR)
7139 break;
7140
7141 /* Check if NT, then add it to list */
7142 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0)
7143 goto continue_next_new_nt;
7144
7145 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE))
7146 goto continue_next_new_nt;
7147
7148 DEBUG2(ql4_printk(KERN_INFO, ha,
7149 "Adding DDB to session = 0x%x\n", idx));
7150
7151 nt_ddb_idx = vmalloc(fw_idx_size);
7152 if (!nt_ddb_idx)
7153 break;
7154
7155 nt_ddb_idx->fw_ddb_idx = idx;
7156
7157 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL);
7158 if (ret == QLA_SUCCESS) {
7159 /* free nt_ddb_idx and do not add to list_nt */
7160 vfree(nt_ddb_idx);
7161 goto continue_next_new_nt;
7162 }
7163
7164 if (target_id < max_ddbs)
7165 fw_ddb_entry->ddb_link = cpu_to_le16(target_id);
7166
7167 list_add_tail(&nt_ddb_idx->list, list_nt);
7168
7169 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER,
7170 idx);
7171 if (ret == QLA_ERROR)
7172 goto exit_new_nt_list;
7173
7174 continue_next_new_nt:
7175 if (next_idx == 0)
7176 break;
7177 }
7178
7179 exit_new_nt_list:
7180 if (fw_ddb_entry)
7181 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
7182 }
7183
7184 /**
7185 * qla4xxx_sysfs_ddb_is_non_persistent - check for non-persistence of ddb entry
7186 * @dev: dev associated with the sysfs entry
7187 * @data: pointer to flashnode session object
7188 *
7189 * Returns:
7190 * 1: if flashnode entry is non-persistent
7191 * 0: if flashnode entry is persistent
7192 **/
qla4xxx_sysfs_ddb_is_non_persistent(struct device * dev,void * data)7193 static int qla4xxx_sysfs_ddb_is_non_persistent(struct device *dev, void *data)
7194 {
7195 struct iscsi_bus_flash_session *fnode_sess;
7196
7197 if (!iscsi_flashnode_bus_match(dev, NULL))
7198 return 0;
7199
7200 fnode_sess = iscsi_dev_to_flash_session(dev);
7201
7202 return (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT);
7203 }
7204
7205 /**
7206 * qla4xxx_sysfs_ddb_tgt_create - Create sysfs entry for target
7207 * @ha: pointer to host
7208 * @fw_ddb_entry: flash ddb data
7209 * @idx: target index
7210 * @user: if set then this call is made from userland else from kernel
7211 *
7212 * Returns:
7213 * On sucess: QLA_SUCCESS
7214 * On failure: QLA_ERROR
7215 *
7216 * This create separate sysfs entries for session and connection attributes of
7217 * the given fw ddb entry.
7218 * If this is invoked as a result of a userspace call then the entry is marked
7219 * as nonpersistent using flash_state field.
7220 **/
qla4xxx_sysfs_ddb_tgt_create(struct scsi_qla_host * ha,struct dev_db_entry * fw_ddb_entry,uint16_t * idx,int user)7221 static int qla4xxx_sysfs_ddb_tgt_create(struct scsi_qla_host *ha,
7222 struct dev_db_entry *fw_ddb_entry,
7223 uint16_t *idx, int user)
7224 {
7225 struct iscsi_bus_flash_session *fnode_sess = NULL;
7226 struct iscsi_bus_flash_conn *fnode_conn = NULL;
7227 int rc = QLA_ERROR;
7228
7229 fnode_sess = iscsi_create_flashnode_sess(ha->host, *idx,
7230 &qla4xxx_iscsi_transport, 0);
7231 if (!fnode_sess) {
7232 ql4_printk(KERN_ERR, ha,
7233 "%s: Unable to create session sysfs entry for flashnode %d of host%lu\n",
7234 __func__, *idx, ha->host_no);
7235 goto exit_tgt_create;
7236 }
7237
7238 fnode_conn = iscsi_create_flashnode_conn(ha->host, fnode_sess,
7239 &qla4xxx_iscsi_transport, 0);
7240 if (!fnode_conn) {
7241 ql4_printk(KERN_ERR, ha,
7242 "%s: Unable to create conn sysfs entry for flashnode %d of host%lu\n",
7243 __func__, *idx, ha->host_no);
7244 goto free_sess;
7245 }
7246
7247 if (user) {
7248 fnode_sess->flash_state = DEV_DB_NON_PERSISTENT;
7249 } else {
7250 fnode_sess->flash_state = DEV_DB_PERSISTENT;
7251
7252 if (*idx == ha->pri_ddb_idx || *idx == ha->sec_ddb_idx)
7253 fnode_sess->is_boot_target = 1;
7254 else
7255 fnode_sess->is_boot_target = 0;
7256 }
7257
7258 rc = qla4xxx_copy_from_fwddb_param(fnode_sess, fnode_conn,
7259 fw_ddb_entry);
7260 if (rc)
7261 goto free_sess;
7262
7263 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n",
7264 __func__, fnode_sess->dev.kobj.name);
7265
7266 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n",
7267 __func__, fnode_conn->dev.kobj.name);
7268
7269 return QLA_SUCCESS;
7270
7271 free_sess:
7272 iscsi_destroy_flashnode_sess(fnode_sess);
7273
7274 exit_tgt_create:
7275 return QLA_ERROR;
7276 }
7277
7278 /**
7279 * qla4xxx_sysfs_ddb_add - Add new ddb entry in flash
7280 * @shost: pointer to host
7281 * @buf: type of ddb entry (ipv4/ipv6)
7282 * @len: length of buf
7283 *
7284 * This creates new ddb entry in the flash by finding first free index and
7285 * storing default ddb there. And then create sysfs entry for the new ddb entry.
7286 **/
qla4xxx_sysfs_ddb_add(struct Scsi_Host * shost,const char * buf,int len)7287 static int qla4xxx_sysfs_ddb_add(struct Scsi_Host *shost, const char *buf,
7288 int len)
7289 {
7290 struct scsi_qla_host *ha = to_qla_host(shost);
7291 struct dev_db_entry *fw_ddb_entry = NULL;
7292 dma_addr_t fw_ddb_entry_dma;
7293 struct device *dev;
7294 uint16_t idx = 0;
7295 uint16_t max_ddbs = 0;
7296 uint32_t options = 0;
7297 uint32_t rval = QLA_ERROR;
7298
7299 if (strncasecmp(PORTAL_TYPE_IPV4, buf, 4) &&
7300 strncasecmp(PORTAL_TYPE_IPV6, buf, 4)) {
7301 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Invalid portal type\n",
7302 __func__));
7303 goto exit_ddb_add;
7304 }
7305
7306 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES :
7307 MAX_DEV_DB_ENTRIES;
7308
7309 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7310 &fw_ddb_entry_dma, GFP_KERNEL);
7311 if (!fw_ddb_entry) {
7312 DEBUG2(ql4_printk(KERN_ERR, ha,
7313 "%s: Unable to allocate dma buffer\n",
7314 __func__));
7315 goto exit_ddb_add;
7316 }
7317
7318 dev = iscsi_find_flashnode_sess(ha->host, NULL,
7319 qla4xxx_sysfs_ddb_is_non_persistent);
7320 if (dev) {
7321 ql4_printk(KERN_ERR, ha,
7322 "%s: A non-persistent entry %s found\n",
7323 __func__, dev->kobj.name);
7324 put_device(dev);
7325 goto exit_ddb_add;
7326 }
7327
7328 /* Index 0 and 1 are reserved for boot target entries */
7329 for (idx = 2; idx < max_ddbs; idx++) {
7330 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry,
7331 fw_ddb_entry_dma, idx))
7332 break;
7333 }
7334
7335 if (idx == max_ddbs)
7336 goto exit_ddb_add;
7337
7338 if (!strncasecmp("ipv6", buf, 4))
7339 options |= IPV6_DEFAULT_DDB_ENTRY;
7340
7341 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
7342 if (rval == QLA_ERROR)
7343 goto exit_ddb_add;
7344
7345 rval = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 1);
7346
7347 exit_ddb_add:
7348 if (fw_ddb_entry)
7349 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7350 fw_ddb_entry, fw_ddb_entry_dma);
7351 if (rval == QLA_SUCCESS)
7352 return idx;
7353 else
7354 return -EIO;
7355 }
7356
7357 /**
7358 * qla4xxx_sysfs_ddb_apply - write the target ddb contents to Flash
7359 * @fnode_sess: pointer to session attrs of flash ddb entry
7360 * @fnode_conn: pointer to connection attrs of flash ddb entry
7361 *
7362 * This writes the contents of target ddb buffer to Flash with a valid cookie
7363 * value in order to make the ddb entry persistent.
7364 **/
qla4xxx_sysfs_ddb_apply(struct iscsi_bus_flash_session * fnode_sess,struct iscsi_bus_flash_conn * fnode_conn)7365 static int qla4xxx_sysfs_ddb_apply(struct iscsi_bus_flash_session *fnode_sess,
7366 struct iscsi_bus_flash_conn *fnode_conn)
7367 {
7368 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7369 struct scsi_qla_host *ha = to_qla_host(shost);
7370 uint32_t dev_db_start_offset = FLASH_OFFSET_DB_INFO;
7371 struct dev_db_entry *fw_ddb_entry = NULL;
7372 dma_addr_t fw_ddb_entry_dma;
7373 uint32_t options = 0;
7374 int rval = 0;
7375
7376 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7377 &fw_ddb_entry_dma, GFP_KERNEL);
7378 if (!fw_ddb_entry) {
7379 DEBUG2(ql4_printk(KERN_ERR, ha,
7380 "%s: Unable to allocate dma buffer\n",
7381 __func__));
7382 rval = -ENOMEM;
7383 goto exit_ddb_apply;
7384 }
7385
7386 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7387 options |= IPV6_DEFAULT_DDB_ENTRY;
7388
7389 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
7390 if (rval == QLA_ERROR)
7391 goto exit_ddb_apply;
7392
7393 dev_db_start_offset += (fnode_sess->target_id *
7394 sizeof(*fw_ddb_entry));
7395
7396 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry);
7397 fw_ddb_entry->cookie = DDB_VALID_COOKIE;
7398
7399 rval = qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset,
7400 sizeof(*fw_ddb_entry), FLASH_OPT_RMW_COMMIT);
7401
7402 if (rval == QLA_SUCCESS) {
7403 fnode_sess->flash_state = DEV_DB_PERSISTENT;
7404 ql4_printk(KERN_INFO, ha,
7405 "%s: flash node %u of host %lu written to flash\n",
7406 __func__, fnode_sess->target_id, ha->host_no);
7407 } else {
7408 rval = -EIO;
7409 ql4_printk(KERN_ERR, ha,
7410 "%s: Error while writing flash node %u of host %lu to flash\n",
7411 __func__, fnode_sess->target_id, ha->host_no);
7412 }
7413
7414 exit_ddb_apply:
7415 if (fw_ddb_entry)
7416 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7417 fw_ddb_entry, fw_ddb_entry_dma);
7418 return rval;
7419 }
7420
qla4xxx_sysfs_ddb_conn_open(struct scsi_qla_host * ha,struct dev_db_entry * fw_ddb_entry,uint16_t idx)7421 static ssize_t qla4xxx_sysfs_ddb_conn_open(struct scsi_qla_host *ha,
7422 struct dev_db_entry *fw_ddb_entry,
7423 uint16_t idx)
7424 {
7425 struct dev_db_entry *ddb_entry = NULL;
7426 dma_addr_t ddb_entry_dma;
7427 unsigned long wtime;
7428 uint32_t mbx_sts = 0;
7429 uint32_t state = 0, conn_err = 0;
7430 uint16_t tmo = 0;
7431 int ret = 0;
7432
7433 ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*ddb_entry),
7434 &ddb_entry_dma, GFP_KERNEL);
7435 if (!ddb_entry) {
7436 DEBUG2(ql4_printk(KERN_ERR, ha,
7437 "%s: Unable to allocate dma buffer\n",
7438 __func__));
7439 return QLA_ERROR;
7440 }
7441
7442 memcpy(ddb_entry, fw_ddb_entry, sizeof(*ddb_entry));
7443
7444 ret = qla4xxx_set_ddb_entry(ha, idx, ddb_entry_dma, &mbx_sts);
7445 if (ret != QLA_SUCCESS) {
7446 DEBUG2(ql4_printk(KERN_ERR, ha,
7447 "%s: Unable to set ddb entry for index %d\n",
7448 __func__, idx));
7449 goto exit_ddb_conn_open;
7450 }
7451
7452 qla4xxx_conn_open(ha, idx);
7453
7454 /* To ensure that sendtargets is done, wait for at least 12 secs */
7455 tmo = ((ha->def_timeout > LOGIN_TOV) &&
7456 (ha->def_timeout < LOGIN_TOV * 10) ?
7457 ha->def_timeout : LOGIN_TOV);
7458
7459 DEBUG2(ql4_printk(KERN_INFO, ha,
7460 "Default time to wait for login to ddb %d\n", tmo));
7461
7462 wtime = jiffies + (HZ * tmo);
7463 do {
7464 ret = qla4xxx_get_fwddb_entry(ha, idx, NULL, 0, NULL,
7465 NULL, &state, &conn_err, NULL,
7466 NULL);
7467 if (ret == QLA_ERROR)
7468 continue;
7469
7470 if (state == DDB_DS_NO_CONNECTION_ACTIVE ||
7471 state == DDB_DS_SESSION_FAILED)
7472 break;
7473
7474 schedule_timeout_uninterruptible(HZ / 10);
7475 } while (time_after(wtime, jiffies));
7476
7477 exit_ddb_conn_open:
7478 if (ddb_entry)
7479 dma_free_coherent(&ha->pdev->dev, sizeof(*ddb_entry),
7480 ddb_entry, ddb_entry_dma);
7481 return ret;
7482 }
7483
qla4xxx_ddb_login_st(struct scsi_qla_host * ha,struct dev_db_entry * fw_ddb_entry,uint16_t target_id)7484 static int qla4xxx_ddb_login_st(struct scsi_qla_host *ha,
7485 struct dev_db_entry *fw_ddb_entry,
7486 uint16_t target_id)
7487 {
7488 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
7489 struct list_head list_nt;
7490 uint16_t ddb_index;
7491 int ret = 0;
7492
7493 if (test_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags)) {
7494 ql4_printk(KERN_WARNING, ha,
7495 "%s: A discovery already in progress!\n", __func__);
7496 return QLA_ERROR;
7497 }
7498
7499 INIT_LIST_HEAD(&list_nt);
7500
7501 set_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags);
7502
7503 ret = qla4xxx_get_ddb_index(ha, &ddb_index);
7504 if (ret == QLA_ERROR)
7505 goto exit_login_st_clr_bit;
7506
7507 ret = qla4xxx_sysfs_ddb_conn_open(ha, fw_ddb_entry, ddb_index);
7508 if (ret == QLA_ERROR)
7509 goto exit_login_st;
7510
7511 qla4xxx_build_new_nt_list(ha, &list_nt, target_id);
7512
7513 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, &list_nt, list) {
7514 list_del_init(&ddb_idx->list);
7515 qla4xxx_clear_ddb_entry(ha, ddb_idx->fw_ddb_idx);
7516 vfree(ddb_idx);
7517 }
7518
7519 exit_login_st:
7520 if (qla4xxx_clear_ddb_entry(ha, ddb_index) == QLA_ERROR) {
7521 ql4_printk(KERN_ERR, ha,
7522 "Unable to clear DDB index = 0x%x\n", ddb_index);
7523 }
7524
7525 clear_bit(ddb_index, ha->ddb_idx_map);
7526
7527 exit_login_st_clr_bit:
7528 clear_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags);
7529 return ret;
7530 }
7531
qla4xxx_ddb_login_nt(struct scsi_qla_host * ha,struct dev_db_entry * fw_ddb_entry,uint16_t idx)7532 static int qla4xxx_ddb_login_nt(struct scsi_qla_host *ha,
7533 struct dev_db_entry *fw_ddb_entry,
7534 uint16_t idx)
7535 {
7536 int ret = QLA_ERROR;
7537
7538 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL);
7539 if (ret != QLA_SUCCESS)
7540 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER,
7541 idx);
7542 else
7543 ret = -EPERM;
7544
7545 return ret;
7546 }
7547
7548 /**
7549 * qla4xxx_sysfs_ddb_login - Login to the specified target
7550 * @fnode_sess: pointer to session attrs of flash ddb entry
7551 * @fnode_conn: pointer to connection attrs of flash ddb entry
7552 *
7553 * This logs in to the specified target
7554 **/
qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session * fnode_sess,struct iscsi_bus_flash_conn * fnode_conn)7555 static int qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess,
7556 struct iscsi_bus_flash_conn *fnode_conn)
7557 {
7558 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7559 struct scsi_qla_host *ha = to_qla_host(shost);
7560 struct dev_db_entry *fw_ddb_entry = NULL;
7561 dma_addr_t fw_ddb_entry_dma;
7562 uint32_t options = 0;
7563 int ret = 0;
7564
7565 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT) {
7566 ql4_printk(KERN_ERR, ha,
7567 "%s: Target info is not persistent\n", __func__);
7568 ret = -EIO;
7569 goto exit_ddb_login;
7570 }
7571
7572 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7573 &fw_ddb_entry_dma, GFP_KERNEL);
7574 if (!fw_ddb_entry) {
7575 DEBUG2(ql4_printk(KERN_ERR, ha,
7576 "%s: Unable to allocate dma buffer\n",
7577 __func__));
7578 ret = -ENOMEM;
7579 goto exit_ddb_login;
7580 }
7581
7582 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7583 options |= IPV6_DEFAULT_DDB_ENTRY;
7584
7585 ret = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
7586 if (ret == QLA_ERROR)
7587 goto exit_ddb_login;
7588
7589 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry);
7590 fw_ddb_entry->cookie = DDB_VALID_COOKIE;
7591
7592 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0)
7593 ret = qla4xxx_ddb_login_st(ha, fw_ddb_entry,
7594 fnode_sess->target_id);
7595 else
7596 ret = qla4xxx_ddb_login_nt(ha, fw_ddb_entry,
7597 fnode_sess->target_id);
7598
7599 if (ret > 0)
7600 ret = -EIO;
7601
7602 exit_ddb_login:
7603 if (fw_ddb_entry)
7604 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7605 fw_ddb_entry, fw_ddb_entry_dma);
7606 return ret;
7607 }
7608
7609 /**
7610 * qla4xxx_sysfs_ddb_logout_sid - Logout session for the specified target
7611 * @cls_sess: pointer to session to be logged out
7612 *
7613 * This performs session log out from the specified target
7614 **/
qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session * cls_sess)7615 static int qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess)
7616 {
7617 struct iscsi_session *sess;
7618 struct ddb_entry *ddb_entry = NULL;
7619 struct scsi_qla_host *ha;
7620 struct dev_db_entry *fw_ddb_entry = NULL;
7621 dma_addr_t fw_ddb_entry_dma;
7622 unsigned long flags;
7623 unsigned long wtime;
7624 uint32_t ddb_state;
7625 int options;
7626 int ret = 0;
7627
7628 sess = cls_sess->dd_data;
7629 ddb_entry = sess->dd_data;
7630 ha = ddb_entry->ha;
7631
7632 if (ddb_entry->ddb_type != FLASH_DDB) {
7633 ql4_printk(KERN_ERR, ha, "%s: Not a flash node session\n",
7634 __func__);
7635 ret = -ENXIO;
7636 goto exit_ddb_logout;
7637 }
7638
7639 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) {
7640 ql4_printk(KERN_ERR, ha,
7641 "%s: Logout from boot target entry is not permitted.\n",
7642 __func__);
7643 ret = -EPERM;
7644 goto exit_ddb_logout;
7645 }
7646
7647 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7648 &fw_ddb_entry_dma, GFP_KERNEL);
7649 if (!fw_ddb_entry) {
7650 ql4_printk(KERN_ERR, ha,
7651 "%s: Unable to allocate dma buffer\n", __func__);
7652 ret = -ENOMEM;
7653 goto exit_ddb_logout;
7654 }
7655
7656 if (test_and_set_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags))
7657 goto ddb_logout_init;
7658
7659 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
7660 fw_ddb_entry, fw_ddb_entry_dma,
7661 NULL, NULL, &ddb_state, NULL,
7662 NULL, NULL);
7663 if (ret == QLA_ERROR)
7664 goto ddb_logout_init;
7665
7666 if (ddb_state == DDB_DS_SESSION_ACTIVE)
7667 goto ddb_logout_init;
7668
7669 /* wait until next relogin is triggered using DF_RELOGIN and
7670 * clear DF_RELOGIN to avoid invocation of further relogin
7671 */
7672 wtime = jiffies + (HZ * RELOGIN_TOV);
7673 do {
7674 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags))
7675 goto ddb_logout_init;
7676
7677 schedule_timeout_uninterruptible(HZ);
7678 } while ((time_after(wtime, jiffies)));
7679
7680 ddb_logout_init:
7681 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY);
7682 atomic_set(&ddb_entry->relogin_timer, 0);
7683
7684 options = LOGOUT_OPTION_CLOSE_SESSION;
7685 qla4xxx_session_logout_ddb(ha, ddb_entry, options);
7686
7687 memset(fw_ddb_entry, 0, sizeof(*fw_ddb_entry));
7688 wtime = jiffies + (HZ * LOGOUT_TOV);
7689 do {
7690 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
7691 fw_ddb_entry, fw_ddb_entry_dma,
7692 NULL, NULL, &ddb_state, NULL,
7693 NULL, NULL);
7694 if (ret == QLA_ERROR)
7695 goto ddb_logout_clr_sess;
7696
7697 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) ||
7698 (ddb_state == DDB_DS_SESSION_FAILED))
7699 goto ddb_logout_clr_sess;
7700
7701 schedule_timeout_uninterruptible(HZ);
7702 } while ((time_after(wtime, jiffies)));
7703
7704 ddb_logout_clr_sess:
7705 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
7706 /*
7707 * we have decremented the reference count of the driver
7708 * when we setup the session to have the driver unload
7709 * to be seamless without actually destroying the
7710 * session
7711 **/
7712 try_module_get(qla4xxx_iscsi_transport.owner);
7713 iscsi_destroy_endpoint(ddb_entry->conn->ep);
7714
7715 spin_lock_irqsave(&ha->hardware_lock, flags);
7716 qla4xxx_free_ddb(ha, ddb_entry);
7717 clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map);
7718 spin_unlock_irqrestore(&ha->hardware_lock, flags);
7719
7720 iscsi_session_teardown(ddb_entry->sess);
7721
7722 clear_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags);
7723 ret = QLA_SUCCESS;
7724
7725 exit_ddb_logout:
7726 if (fw_ddb_entry)
7727 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7728 fw_ddb_entry, fw_ddb_entry_dma);
7729 return ret;
7730 }
7731
7732 /**
7733 * qla4xxx_sysfs_ddb_logout - Logout from the specified target
7734 * @fnode_sess: pointer to session attrs of flash ddb entry
7735 * @fnode_conn: pointer to connection attrs of flash ddb entry
7736 *
7737 * This performs log out from the specified target
7738 **/
qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session * fnode_sess,struct iscsi_bus_flash_conn * fnode_conn)7739 static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess,
7740 struct iscsi_bus_flash_conn *fnode_conn)
7741 {
7742 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7743 struct scsi_qla_host *ha = to_qla_host(shost);
7744 struct ql4_tuple_ddb *flash_tddb = NULL;
7745 struct ql4_tuple_ddb *tmp_tddb = NULL;
7746 struct dev_db_entry *fw_ddb_entry = NULL;
7747 struct ddb_entry *ddb_entry = NULL;
7748 dma_addr_t fw_ddb_dma;
7749 uint32_t next_idx = 0;
7750 uint32_t state = 0, conn_err = 0;
7751 uint16_t conn_id = 0;
7752 int idx, index;
7753 int status, ret = 0;
7754
7755 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
7756 &fw_ddb_dma);
7757 if (fw_ddb_entry == NULL) {
7758 ql4_printk(KERN_ERR, ha, "%s:Out of memory\n", __func__);
7759 ret = -ENOMEM;
7760 goto exit_ddb_logout;
7761 }
7762
7763 flash_tddb = vzalloc(sizeof(*flash_tddb));
7764 if (!flash_tddb) {
7765 ql4_printk(KERN_WARNING, ha,
7766 "%s:Memory Allocation failed.\n", __func__);
7767 ret = -ENOMEM;
7768 goto exit_ddb_logout;
7769 }
7770
7771 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
7772 if (!tmp_tddb) {
7773 ql4_printk(KERN_WARNING, ha,
7774 "%s:Memory Allocation failed.\n", __func__);
7775 ret = -ENOMEM;
7776 goto exit_ddb_logout;
7777 }
7778
7779 if (!fnode_sess->targetname) {
7780 ql4_printk(KERN_ERR, ha,
7781 "%s:Cannot logout from SendTarget entry\n",
7782 __func__);
7783 ret = -EPERM;
7784 goto exit_ddb_logout;
7785 }
7786
7787 if (fnode_sess->is_boot_target) {
7788 ql4_printk(KERN_ERR, ha,
7789 "%s: Logout from boot target entry is not permitted.\n",
7790 __func__);
7791 ret = -EPERM;
7792 goto exit_ddb_logout;
7793 }
7794
7795 strlcpy(flash_tddb->iscsi_name, fnode_sess->targetname,
7796 ISCSI_NAME_SIZE);
7797
7798 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7799 sprintf(flash_tddb->ip_addr, "%pI6", fnode_conn->ipaddress);
7800 else
7801 sprintf(flash_tddb->ip_addr, "%pI4", fnode_conn->ipaddress);
7802
7803 flash_tddb->tpgt = fnode_sess->tpgt;
7804 flash_tddb->port = fnode_conn->port;
7805
7806 COPY_ISID(flash_tddb->isid, fnode_sess->isid);
7807
7808 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
7809 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
7810 if (ddb_entry == NULL)
7811 continue;
7812
7813 if (ddb_entry->ddb_type != FLASH_DDB)
7814 continue;
7815
7816 index = ddb_entry->sess->target_id;
7817 status = qla4xxx_get_fwddb_entry(ha, index, fw_ddb_entry,
7818 fw_ddb_dma, NULL, &next_idx,
7819 &state, &conn_err, NULL,
7820 &conn_id);
7821 if (status == QLA_ERROR) {
7822 ret = -ENOMEM;
7823 break;
7824 }
7825
7826 qla4xxx_convert_param_ddb(fw_ddb_entry, tmp_tddb, NULL);
7827
7828 status = qla4xxx_compare_tuple_ddb(ha, flash_tddb, tmp_tddb,
7829 true);
7830 if (status == QLA_SUCCESS) {
7831 ret = qla4xxx_sysfs_ddb_logout_sid(ddb_entry->sess);
7832 break;
7833 }
7834 }
7835
7836 if (idx == MAX_DDB_ENTRIES)
7837 ret = -ESRCH;
7838
7839 exit_ddb_logout:
7840 vfree(flash_tddb);
7841 vfree(tmp_tddb);
7842 if (fw_ddb_entry)
7843 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
7844
7845 return ret;
7846 }
7847
7848 static int
qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session * fnode_sess,int param,char * buf)7849 qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session *fnode_sess,
7850 int param, char *buf)
7851 {
7852 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7853 struct scsi_qla_host *ha = to_qla_host(shost);
7854 struct iscsi_bus_flash_conn *fnode_conn;
7855 struct ql4_chap_table chap_tbl;
7856 struct device *dev;
7857 int parent_type;
7858 int rc = 0;
7859
7860 dev = iscsi_find_flashnode_conn(fnode_sess);
7861 if (!dev)
7862 return -EIO;
7863
7864 fnode_conn = iscsi_dev_to_flash_conn(dev);
7865
7866 switch (param) {
7867 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6:
7868 rc = sprintf(buf, "%u\n", fnode_conn->is_fw_assigned_ipv6);
7869 break;
7870 case ISCSI_FLASHNODE_PORTAL_TYPE:
7871 rc = sprintf(buf, "%s\n", fnode_sess->portal_type);
7872 break;
7873 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE:
7874 rc = sprintf(buf, "%u\n", fnode_sess->auto_snd_tgt_disable);
7875 break;
7876 case ISCSI_FLASHNODE_DISCOVERY_SESS:
7877 rc = sprintf(buf, "%u\n", fnode_sess->discovery_sess);
7878 break;
7879 case ISCSI_FLASHNODE_ENTRY_EN:
7880 rc = sprintf(buf, "%u\n", fnode_sess->entry_state);
7881 break;
7882 case ISCSI_FLASHNODE_HDR_DGST_EN:
7883 rc = sprintf(buf, "%u\n", fnode_conn->hdrdgst_en);
7884 break;
7885 case ISCSI_FLASHNODE_DATA_DGST_EN:
7886 rc = sprintf(buf, "%u\n", fnode_conn->datadgst_en);
7887 break;
7888 case ISCSI_FLASHNODE_IMM_DATA_EN:
7889 rc = sprintf(buf, "%u\n", fnode_sess->imm_data_en);
7890 break;
7891 case ISCSI_FLASHNODE_INITIAL_R2T_EN:
7892 rc = sprintf(buf, "%u\n", fnode_sess->initial_r2t_en);
7893 break;
7894 case ISCSI_FLASHNODE_DATASEQ_INORDER:
7895 rc = sprintf(buf, "%u\n", fnode_sess->dataseq_inorder_en);
7896 break;
7897 case ISCSI_FLASHNODE_PDU_INORDER:
7898 rc = sprintf(buf, "%u\n", fnode_sess->pdu_inorder_en);
7899 break;
7900 case ISCSI_FLASHNODE_CHAP_AUTH_EN:
7901 rc = sprintf(buf, "%u\n", fnode_sess->chap_auth_en);
7902 break;
7903 case ISCSI_FLASHNODE_SNACK_REQ_EN:
7904 rc = sprintf(buf, "%u\n", fnode_conn->snack_req_en);
7905 break;
7906 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN:
7907 rc = sprintf(buf, "%u\n", fnode_sess->discovery_logout_en);
7908 break;
7909 case ISCSI_FLASHNODE_BIDI_CHAP_EN:
7910 rc = sprintf(buf, "%u\n", fnode_sess->bidi_chap_en);
7911 break;
7912 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL:
7913 rc = sprintf(buf, "%u\n", fnode_sess->discovery_auth_optional);
7914 break;
7915 case ISCSI_FLASHNODE_ERL:
7916 rc = sprintf(buf, "%u\n", fnode_sess->erl);
7917 break;
7918 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT:
7919 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_stat);
7920 break;
7921 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE:
7922 rc = sprintf(buf, "%u\n", fnode_conn->tcp_nagle_disable);
7923 break;
7924 case ISCSI_FLASHNODE_TCP_WSF_DISABLE:
7925 rc = sprintf(buf, "%u\n", fnode_conn->tcp_wsf_disable);
7926 break;
7927 case ISCSI_FLASHNODE_TCP_TIMER_SCALE:
7928 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timer_scale);
7929 break;
7930 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN:
7931 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_en);
7932 break;
7933 case ISCSI_FLASHNODE_IP_FRAG_DISABLE:
7934 rc = sprintf(buf, "%u\n", fnode_conn->fragment_disable);
7935 break;
7936 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH:
7937 rc = sprintf(buf, "%u\n", fnode_conn->max_recv_dlength);
7938 break;
7939 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH:
7940 rc = sprintf(buf, "%u\n", fnode_conn->max_xmit_dlength);
7941 break;
7942 case ISCSI_FLASHNODE_FIRST_BURST:
7943 rc = sprintf(buf, "%u\n", fnode_sess->first_burst);
7944 break;
7945 case ISCSI_FLASHNODE_DEF_TIME2WAIT:
7946 rc = sprintf(buf, "%u\n", fnode_sess->time2wait);
7947 break;
7948 case ISCSI_FLASHNODE_DEF_TIME2RETAIN:
7949 rc = sprintf(buf, "%u\n", fnode_sess->time2retain);
7950 break;
7951 case ISCSI_FLASHNODE_MAX_R2T:
7952 rc = sprintf(buf, "%u\n", fnode_sess->max_r2t);
7953 break;
7954 case ISCSI_FLASHNODE_KEEPALIVE_TMO:
7955 rc = sprintf(buf, "%u\n", fnode_conn->keepalive_timeout);
7956 break;
7957 case ISCSI_FLASHNODE_ISID:
7958 rc = sprintf(buf, "%pm\n", fnode_sess->isid);
7959 break;
7960 case ISCSI_FLASHNODE_TSID:
7961 rc = sprintf(buf, "%u\n", fnode_sess->tsid);
7962 break;
7963 case ISCSI_FLASHNODE_PORT:
7964 rc = sprintf(buf, "%d\n", fnode_conn->port);
7965 break;
7966 case ISCSI_FLASHNODE_MAX_BURST:
7967 rc = sprintf(buf, "%u\n", fnode_sess->max_burst);
7968 break;
7969 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO:
7970 rc = sprintf(buf, "%u\n",
7971 fnode_sess->default_taskmgmt_timeout);
7972 break;
7973 case ISCSI_FLASHNODE_IPADDR:
7974 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7975 rc = sprintf(buf, "%pI6\n", fnode_conn->ipaddress);
7976 else
7977 rc = sprintf(buf, "%pI4\n", fnode_conn->ipaddress);
7978 break;
7979 case ISCSI_FLASHNODE_ALIAS:
7980 if (fnode_sess->targetalias)
7981 rc = sprintf(buf, "%s\n", fnode_sess->targetalias);
7982 else
7983 rc = sprintf(buf, "\n");
7984 break;
7985 case ISCSI_FLASHNODE_REDIRECT_IPADDR:
7986 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7987 rc = sprintf(buf, "%pI6\n",
7988 fnode_conn->redirect_ipaddr);
7989 else
7990 rc = sprintf(buf, "%pI4\n",
7991 fnode_conn->redirect_ipaddr);
7992 break;
7993 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE:
7994 rc = sprintf(buf, "%u\n", fnode_conn->max_segment_size);
7995 break;
7996 case ISCSI_FLASHNODE_LOCAL_PORT:
7997 rc = sprintf(buf, "%u\n", fnode_conn->local_port);
7998 break;
7999 case ISCSI_FLASHNODE_IPV4_TOS:
8000 rc = sprintf(buf, "%u\n", fnode_conn->ipv4_tos);
8001 break;
8002 case ISCSI_FLASHNODE_IPV6_TC:
8003 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
8004 rc = sprintf(buf, "%u\n",
8005 fnode_conn->ipv6_traffic_class);
8006 else
8007 rc = sprintf(buf, "\n");
8008 break;
8009 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL:
8010 rc = sprintf(buf, "%u\n", fnode_conn->ipv6_flow_label);
8011 break;
8012 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6:
8013 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
8014 rc = sprintf(buf, "%pI6\n",
8015 fnode_conn->link_local_ipv6_addr);
8016 else
8017 rc = sprintf(buf, "\n");
8018 break;
8019 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX:
8020 rc = sprintf(buf, "%u\n", fnode_sess->discovery_parent_idx);
8021 break;
8022 case ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE:
8023 if (fnode_sess->discovery_parent_type == DDB_ISNS)
8024 parent_type = ISCSI_DISC_PARENT_ISNS;
8025 else if (fnode_sess->discovery_parent_type == DDB_NO_LINK)
8026 parent_type = ISCSI_DISC_PARENT_UNKNOWN;
8027 else if (fnode_sess->discovery_parent_type < MAX_DDB_ENTRIES)
8028 parent_type = ISCSI_DISC_PARENT_SENDTGT;
8029 else
8030 parent_type = ISCSI_DISC_PARENT_UNKNOWN;
8031
8032 rc = sprintf(buf, "%s\n",
8033 iscsi_get_discovery_parent_name(parent_type));
8034 break;
8035 case ISCSI_FLASHNODE_NAME:
8036 if (fnode_sess->targetname)
8037 rc = sprintf(buf, "%s\n", fnode_sess->targetname);
8038 else
8039 rc = sprintf(buf, "\n");
8040 break;
8041 case ISCSI_FLASHNODE_TPGT:
8042 rc = sprintf(buf, "%u\n", fnode_sess->tpgt);
8043 break;
8044 case ISCSI_FLASHNODE_TCP_XMIT_WSF:
8045 rc = sprintf(buf, "%u\n", fnode_conn->tcp_xmit_wsf);
8046 break;
8047 case ISCSI_FLASHNODE_TCP_RECV_WSF:
8048 rc = sprintf(buf, "%u\n", fnode_conn->tcp_recv_wsf);
8049 break;
8050 case ISCSI_FLASHNODE_CHAP_OUT_IDX:
8051 rc = sprintf(buf, "%u\n", fnode_sess->chap_out_idx);
8052 break;
8053 case ISCSI_FLASHNODE_USERNAME:
8054 if (fnode_sess->chap_auth_en) {
8055 qla4xxx_get_uni_chap_at_index(ha,
8056 chap_tbl.name,
8057 chap_tbl.secret,
8058 fnode_sess->chap_out_idx);
8059 rc = sprintf(buf, "%s\n", chap_tbl.name);
8060 } else {
8061 rc = sprintf(buf, "\n");
8062 }
8063 break;
8064 case ISCSI_FLASHNODE_PASSWORD:
8065 if (fnode_sess->chap_auth_en) {
8066 qla4xxx_get_uni_chap_at_index(ha,
8067 chap_tbl.name,
8068 chap_tbl.secret,
8069 fnode_sess->chap_out_idx);
8070 rc = sprintf(buf, "%s\n", chap_tbl.secret);
8071 } else {
8072 rc = sprintf(buf, "\n");
8073 }
8074 break;
8075 case ISCSI_FLASHNODE_STATSN:
8076 rc = sprintf(buf, "%u\n", fnode_conn->statsn);
8077 break;
8078 case ISCSI_FLASHNODE_EXP_STATSN:
8079 rc = sprintf(buf, "%u\n", fnode_conn->exp_statsn);
8080 break;
8081 case ISCSI_FLASHNODE_IS_BOOT_TGT:
8082 rc = sprintf(buf, "%u\n", fnode_sess->is_boot_target);
8083 break;
8084 default:
8085 rc = -ENOSYS;
8086 break;
8087 }
8088
8089 put_device(dev);
8090 return rc;
8091 }
8092
8093 /**
8094 * qla4xxx_sysfs_ddb_set_param - Set parameter for firmware DDB entry
8095 * @fnode_sess: pointer to session attrs of flash ddb entry
8096 * @fnode_conn: pointer to connection attrs of flash ddb entry
8097 * @data: Parameters and their values to update
8098 * @len: len of data
8099 *
8100 * This sets the parameter of flash ddb entry and writes them to flash
8101 **/
8102 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)8103 qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess,
8104 struct iscsi_bus_flash_conn *fnode_conn,
8105 void *data, int len)
8106 {
8107 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
8108 struct scsi_qla_host *ha = to_qla_host(shost);
8109 struct iscsi_flashnode_param_info *fnode_param;
8110 struct ql4_chap_table chap_tbl;
8111 struct nlattr *attr;
8112 uint16_t chap_out_idx = INVALID_ENTRY;
8113 int rc = QLA_ERROR;
8114 uint32_t rem = len;
8115
8116 memset((void *)&chap_tbl, 0, sizeof(chap_tbl));
8117 nla_for_each_attr(attr, data, len, rem) {
8118 if (nla_len(attr) < sizeof(*fnode_param)) {
8119 rc = -EINVAL;
8120 goto exit_set_param;
8121 }
8122
8123 fnode_param = nla_data(attr);
8124
8125 switch (fnode_param->param) {
8126 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6:
8127 fnode_conn->is_fw_assigned_ipv6 = fnode_param->value[0];
8128 break;
8129 case ISCSI_FLASHNODE_PORTAL_TYPE:
8130 memcpy(fnode_sess->portal_type, fnode_param->value,
8131 strlen(fnode_sess->portal_type));
8132 break;
8133 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE:
8134 fnode_sess->auto_snd_tgt_disable =
8135 fnode_param->value[0];
8136 break;
8137 case ISCSI_FLASHNODE_DISCOVERY_SESS:
8138 fnode_sess->discovery_sess = fnode_param->value[0];
8139 break;
8140 case ISCSI_FLASHNODE_ENTRY_EN:
8141 fnode_sess->entry_state = fnode_param->value[0];
8142 break;
8143 case ISCSI_FLASHNODE_HDR_DGST_EN:
8144 fnode_conn->hdrdgst_en = fnode_param->value[0];
8145 break;
8146 case ISCSI_FLASHNODE_DATA_DGST_EN:
8147 fnode_conn->datadgst_en = fnode_param->value[0];
8148 break;
8149 case ISCSI_FLASHNODE_IMM_DATA_EN:
8150 fnode_sess->imm_data_en = fnode_param->value[0];
8151 break;
8152 case ISCSI_FLASHNODE_INITIAL_R2T_EN:
8153 fnode_sess->initial_r2t_en = fnode_param->value[0];
8154 break;
8155 case ISCSI_FLASHNODE_DATASEQ_INORDER:
8156 fnode_sess->dataseq_inorder_en = fnode_param->value[0];
8157 break;
8158 case ISCSI_FLASHNODE_PDU_INORDER:
8159 fnode_sess->pdu_inorder_en = fnode_param->value[0];
8160 break;
8161 case ISCSI_FLASHNODE_CHAP_AUTH_EN:
8162 fnode_sess->chap_auth_en = fnode_param->value[0];
8163 /* Invalidate chap index if chap auth is disabled */
8164 if (!fnode_sess->chap_auth_en)
8165 fnode_sess->chap_out_idx = INVALID_ENTRY;
8166
8167 break;
8168 case ISCSI_FLASHNODE_SNACK_REQ_EN:
8169 fnode_conn->snack_req_en = fnode_param->value[0];
8170 break;
8171 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN:
8172 fnode_sess->discovery_logout_en = fnode_param->value[0];
8173 break;
8174 case ISCSI_FLASHNODE_BIDI_CHAP_EN:
8175 fnode_sess->bidi_chap_en = fnode_param->value[0];
8176 break;
8177 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL:
8178 fnode_sess->discovery_auth_optional =
8179 fnode_param->value[0];
8180 break;
8181 case ISCSI_FLASHNODE_ERL:
8182 fnode_sess->erl = fnode_param->value[0];
8183 break;
8184 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT:
8185 fnode_conn->tcp_timestamp_stat = fnode_param->value[0];
8186 break;
8187 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE:
8188 fnode_conn->tcp_nagle_disable = fnode_param->value[0];
8189 break;
8190 case ISCSI_FLASHNODE_TCP_WSF_DISABLE:
8191 fnode_conn->tcp_wsf_disable = fnode_param->value[0];
8192 break;
8193 case ISCSI_FLASHNODE_TCP_TIMER_SCALE:
8194 fnode_conn->tcp_timer_scale = fnode_param->value[0];
8195 break;
8196 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN:
8197 fnode_conn->tcp_timestamp_en = fnode_param->value[0];
8198 break;
8199 case ISCSI_FLASHNODE_IP_FRAG_DISABLE:
8200 fnode_conn->fragment_disable = fnode_param->value[0];
8201 break;
8202 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH:
8203 fnode_conn->max_recv_dlength =
8204 *(unsigned *)fnode_param->value;
8205 break;
8206 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH:
8207 fnode_conn->max_xmit_dlength =
8208 *(unsigned *)fnode_param->value;
8209 break;
8210 case ISCSI_FLASHNODE_FIRST_BURST:
8211 fnode_sess->first_burst =
8212 *(unsigned *)fnode_param->value;
8213 break;
8214 case ISCSI_FLASHNODE_DEF_TIME2WAIT:
8215 fnode_sess->time2wait = *(uint16_t *)fnode_param->value;
8216 break;
8217 case ISCSI_FLASHNODE_DEF_TIME2RETAIN:
8218 fnode_sess->time2retain =
8219 *(uint16_t *)fnode_param->value;
8220 break;
8221 case ISCSI_FLASHNODE_MAX_R2T:
8222 fnode_sess->max_r2t =
8223 *(uint16_t *)fnode_param->value;
8224 break;
8225 case ISCSI_FLASHNODE_KEEPALIVE_TMO:
8226 fnode_conn->keepalive_timeout =
8227 *(uint16_t *)fnode_param->value;
8228 break;
8229 case ISCSI_FLASHNODE_ISID:
8230 memcpy(fnode_sess->isid, fnode_param->value,
8231 sizeof(fnode_sess->isid));
8232 break;
8233 case ISCSI_FLASHNODE_TSID:
8234 fnode_sess->tsid = *(uint16_t *)fnode_param->value;
8235 break;
8236 case ISCSI_FLASHNODE_PORT:
8237 fnode_conn->port = *(uint16_t *)fnode_param->value;
8238 break;
8239 case ISCSI_FLASHNODE_MAX_BURST:
8240 fnode_sess->max_burst = *(unsigned *)fnode_param->value;
8241 break;
8242 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO:
8243 fnode_sess->default_taskmgmt_timeout =
8244 *(uint16_t *)fnode_param->value;
8245 break;
8246 case ISCSI_FLASHNODE_IPADDR:
8247 memcpy(fnode_conn->ipaddress, fnode_param->value,
8248 IPv6_ADDR_LEN);
8249 break;
8250 case ISCSI_FLASHNODE_ALIAS:
8251 rc = iscsi_switch_str_param(&fnode_sess->targetalias,
8252 (char *)fnode_param->value);
8253 break;
8254 case ISCSI_FLASHNODE_REDIRECT_IPADDR:
8255 memcpy(fnode_conn->redirect_ipaddr, fnode_param->value,
8256 IPv6_ADDR_LEN);
8257 break;
8258 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE:
8259 fnode_conn->max_segment_size =
8260 *(unsigned *)fnode_param->value;
8261 break;
8262 case ISCSI_FLASHNODE_LOCAL_PORT:
8263 fnode_conn->local_port =
8264 *(uint16_t *)fnode_param->value;
8265 break;
8266 case ISCSI_FLASHNODE_IPV4_TOS:
8267 fnode_conn->ipv4_tos = fnode_param->value[0];
8268 break;
8269 case ISCSI_FLASHNODE_IPV6_TC:
8270 fnode_conn->ipv6_traffic_class = fnode_param->value[0];
8271 break;
8272 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL:
8273 fnode_conn->ipv6_flow_label = fnode_param->value[0];
8274 break;
8275 case ISCSI_FLASHNODE_NAME:
8276 rc = iscsi_switch_str_param(&fnode_sess->targetname,
8277 (char *)fnode_param->value);
8278 break;
8279 case ISCSI_FLASHNODE_TPGT:
8280 fnode_sess->tpgt = *(uint16_t *)fnode_param->value;
8281 break;
8282 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6:
8283 memcpy(fnode_conn->link_local_ipv6_addr,
8284 fnode_param->value, IPv6_ADDR_LEN);
8285 break;
8286 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX:
8287 fnode_sess->discovery_parent_idx =
8288 *(uint16_t *)fnode_param->value;
8289 break;
8290 case ISCSI_FLASHNODE_TCP_XMIT_WSF:
8291 fnode_conn->tcp_xmit_wsf =
8292 *(uint8_t *)fnode_param->value;
8293 break;
8294 case ISCSI_FLASHNODE_TCP_RECV_WSF:
8295 fnode_conn->tcp_recv_wsf =
8296 *(uint8_t *)fnode_param->value;
8297 break;
8298 case ISCSI_FLASHNODE_STATSN:
8299 fnode_conn->statsn = *(uint32_t *)fnode_param->value;
8300 break;
8301 case ISCSI_FLASHNODE_EXP_STATSN:
8302 fnode_conn->exp_statsn =
8303 *(uint32_t *)fnode_param->value;
8304 break;
8305 case ISCSI_FLASHNODE_CHAP_OUT_IDX:
8306 chap_out_idx = *(uint16_t *)fnode_param->value;
8307 if (!qla4xxx_get_uni_chap_at_index(ha,
8308 chap_tbl.name,
8309 chap_tbl.secret,
8310 chap_out_idx)) {
8311 fnode_sess->chap_out_idx = chap_out_idx;
8312 /* Enable chap auth if chap index is valid */
8313 fnode_sess->chap_auth_en = QL4_PARAM_ENABLE;
8314 }
8315 break;
8316 default:
8317 ql4_printk(KERN_ERR, ha,
8318 "%s: No such sysfs attribute\n", __func__);
8319 rc = -ENOSYS;
8320 goto exit_set_param;
8321 }
8322 }
8323
8324 rc = qla4xxx_sysfs_ddb_apply(fnode_sess, fnode_conn);
8325
8326 exit_set_param:
8327 return rc;
8328 }
8329
8330 /**
8331 * qla4xxx_sysfs_ddb_delete - Delete firmware DDB entry
8332 * @fnode_sess: pointer to session attrs of flash ddb entry
8333 *
8334 * This invalidates the flash ddb entry at the given index
8335 **/
qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session * fnode_sess)8336 static int qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess)
8337 {
8338 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
8339 struct scsi_qla_host *ha = to_qla_host(shost);
8340 uint32_t dev_db_start_offset;
8341 uint32_t dev_db_end_offset;
8342 struct dev_db_entry *fw_ddb_entry = NULL;
8343 dma_addr_t fw_ddb_entry_dma;
8344 uint16_t *ddb_cookie = NULL;
8345 size_t ddb_size = 0;
8346 void *pddb = NULL;
8347 int target_id;
8348 int rc = 0;
8349
8350 if (fnode_sess->is_boot_target) {
8351 rc = -EPERM;
8352 DEBUG2(ql4_printk(KERN_ERR, ha,
8353 "%s: Deletion of boot target entry is not permitted.\n",
8354 __func__));
8355 goto exit_ddb_del;
8356 }
8357
8358 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT)
8359 goto sysfs_ddb_del;
8360
8361 if (is_qla40XX(ha)) {
8362 dev_db_start_offset = FLASH_OFFSET_DB_INFO;
8363 dev_db_end_offset = FLASH_OFFSET_DB_END;
8364 dev_db_start_offset += (fnode_sess->target_id *
8365 sizeof(*fw_ddb_entry));
8366 ddb_size = sizeof(*fw_ddb_entry);
8367 } else {
8368 dev_db_start_offset = FLASH_RAW_ACCESS_ADDR +
8369 (ha->hw.flt_region_ddb << 2);
8370 /* flt_ddb_size is DDB table size for both ports
8371 * so divide it by 2 to calculate the offset for second port
8372 */
8373 if (ha->port_num == 1)
8374 dev_db_start_offset += (ha->hw.flt_ddb_size / 2);
8375
8376 dev_db_end_offset = dev_db_start_offset +
8377 (ha->hw.flt_ddb_size / 2);
8378
8379 dev_db_start_offset += (fnode_sess->target_id *
8380 sizeof(*fw_ddb_entry));
8381 dev_db_start_offset += offsetof(struct dev_db_entry, cookie);
8382
8383 ddb_size = sizeof(*ddb_cookie);
8384 }
8385
8386 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: start offset=%u, end offset=%u\n",
8387 __func__, dev_db_start_offset, dev_db_end_offset));
8388
8389 if (dev_db_start_offset > dev_db_end_offset) {
8390 rc = -EIO;
8391 DEBUG2(ql4_printk(KERN_ERR, ha, "%s:Invalid DDB index %u\n",
8392 __func__, fnode_sess->target_id));
8393 goto exit_ddb_del;
8394 }
8395
8396 pddb = dma_alloc_coherent(&ha->pdev->dev, ddb_size,
8397 &fw_ddb_entry_dma, GFP_KERNEL);
8398 if (!pddb) {
8399 rc = -ENOMEM;
8400 DEBUG2(ql4_printk(KERN_ERR, ha,
8401 "%s: Unable to allocate dma buffer\n",
8402 __func__));
8403 goto exit_ddb_del;
8404 }
8405
8406 if (is_qla40XX(ha)) {
8407 fw_ddb_entry = pddb;
8408 memset(fw_ddb_entry, 0, ddb_size);
8409 ddb_cookie = &fw_ddb_entry->cookie;
8410 } else {
8411 ddb_cookie = pddb;
8412 }
8413
8414 /* invalidate the cookie */
8415 *ddb_cookie = 0xFFEE;
8416 qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset,
8417 ddb_size, FLASH_OPT_RMW_COMMIT);
8418
8419 sysfs_ddb_del:
8420 target_id = fnode_sess->target_id;
8421 iscsi_destroy_flashnode_sess(fnode_sess);
8422 ql4_printk(KERN_INFO, ha,
8423 "%s: session and conn entries for flashnode %u of host %lu deleted\n",
8424 __func__, target_id, ha->host_no);
8425 exit_ddb_del:
8426 if (pddb)
8427 dma_free_coherent(&ha->pdev->dev, ddb_size, pddb,
8428 fw_ddb_entry_dma);
8429 return rc;
8430 }
8431
8432 /**
8433 * qla4xxx_sysfs_ddb_export - Create sysfs entries for firmware DDBs
8434 * @ha: pointer to adapter structure
8435 *
8436 * Export the firmware DDB for all send targets and normal targets to sysfs.
8437 **/
qla4xxx_sysfs_ddb_export(struct scsi_qla_host * ha)8438 int qla4xxx_sysfs_ddb_export(struct scsi_qla_host *ha)
8439 {
8440 struct dev_db_entry *fw_ddb_entry = NULL;
8441 dma_addr_t fw_ddb_entry_dma;
8442 uint16_t max_ddbs;
8443 uint16_t idx = 0;
8444 int ret = QLA_SUCCESS;
8445
8446 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev,
8447 sizeof(*fw_ddb_entry),
8448 &fw_ddb_entry_dma, GFP_KERNEL);
8449 if (!fw_ddb_entry) {
8450 DEBUG2(ql4_printk(KERN_ERR, ha,
8451 "%s: Unable to allocate dma buffer\n",
8452 __func__));
8453 return -ENOMEM;
8454 }
8455
8456 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES :
8457 MAX_DEV_DB_ENTRIES;
8458
8459 for (idx = 0; idx < max_ddbs; idx++) {
8460 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry, fw_ddb_entry_dma,
8461 idx))
8462 continue;
8463
8464 ret = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 0);
8465 if (ret) {
8466 ret = -EIO;
8467 break;
8468 }
8469 }
8470
8471 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry,
8472 fw_ddb_entry_dma);
8473
8474 return ret;
8475 }
8476
qla4xxx_sysfs_ddb_remove(struct scsi_qla_host * ha)8477 static void qla4xxx_sysfs_ddb_remove(struct scsi_qla_host *ha)
8478 {
8479 iscsi_destroy_all_flashnode(ha->host);
8480 }
8481
8482 /**
8483 * qla4xxx_build_ddb_list - Build ddb list and setup sessions
8484 * @ha: pointer to adapter structure
8485 * @is_reset: Is this init path or reset path
8486 *
8487 * Create a list of sendtargets (st) from firmware DDBs, issue send targets
8488 * using connection open, then create the list of normal targets (nt)
8489 * from firmware DDBs. Based on the list of nt setup session and connection
8490 * objects.
8491 **/
qla4xxx_build_ddb_list(struct scsi_qla_host * ha,int is_reset)8492 void qla4xxx_build_ddb_list(struct scsi_qla_host *ha, int is_reset)
8493 {
8494 uint16_t tmo = 0;
8495 struct list_head list_st, list_nt;
8496 struct qla_ddb_index *st_ddb_idx, *st_ddb_idx_tmp;
8497 unsigned long wtime;
8498
8499 if (!test_bit(AF_LINK_UP, &ha->flags)) {
8500 set_bit(AF_BUILD_DDB_LIST, &ha->flags);
8501 ha->is_reset = is_reset;
8502 return;
8503 }
8504
8505 INIT_LIST_HEAD(&list_st);
8506 INIT_LIST_HEAD(&list_nt);
8507
8508 qla4xxx_build_st_list(ha, &list_st);
8509
8510 /* Before issuing conn open mbox, ensure all IPs states are configured
8511 * Note, conn open fails if IPs are not configured
8512 */
8513 qla4xxx_wait_for_ip_configuration(ha);
8514
8515 /* Go thru the STs and fire the sendtargets by issuing conn open mbx */
8516 list_for_each_entry_safe(st_ddb_idx, st_ddb_idx_tmp, &list_st, list) {
8517 qla4xxx_conn_open(ha, st_ddb_idx->fw_ddb_idx);
8518 }
8519
8520 /* Wait to ensure all sendtargets are done for min 12 sec wait */
8521 tmo = ((ha->def_timeout > LOGIN_TOV) &&
8522 (ha->def_timeout < LOGIN_TOV * 10) ?
8523 ha->def_timeout : LOGIN_TOV);
8524
8525 DEBUG2(ql4_printk(KERN_INFO, ha,
8526 "Default time to wait for build ddb %d\n", tmo));
8527
8528 wtime = jiffies + (HZ * tmo);
8529 do {
8530 if (list_empty(&list_st))
8531 break;
8532
8533 qla4xxx_remove_failed_ddb(ha, &list_st);
8534 schedule_timeout_uninterruptible(HZ / 10);
8535 } while (time_after(wtime, jiffies));
8536
8537
8538 qla4xxx_build_nt_list(ha, &list_nt, &list_st, is_reset);
8539
8540 qla4xxx_free_ddb_list(&list_st);
8541 qla4xxx_free_ddb_list(&list_nt);
8542
8543 qla4xxx_free_ddb_index(ha);
8544 }
8545
8546 /**
8547 * qla4xxx_wait_login_resp_boot_tgt - Wait for iSCSI boot target login
8548 * response.
8549 * @ha: pointer to adapter structure
8550 *
8551 * When the boot entry is normal iSCSI target then DF_BOOT_TGT flag will be
8552 * set in DDB and we will wait for login response of boot targets during
8553 * probe.
8554 **/
qla4xxx_wait_login_resp_boot_tgt(struct scsi_qla_host * ha)8555 static void qla4xxx_wait_login_resp_boot_tgt(struct scsi_qla_host *ha)
8556 {
8557 struct ddb_entry *ddb_entry;
8558 struct dev_db_entry *fw_ddb_entry = NULL;
8559 dma_addr_t fw_ddb_entry_dma;
8560 unsigned long wtime;
8561 uint32_t ddb_state;
8562 int max_ddbs, idx, ret;
8563
8564 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
8565 MAX_DEV_DB_ENTRIES;
8566
8567 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8568 &fw_ddb_entry_dma, GFP_KERNEL);
8569 if (!fw_ddb_entry) {
8570 ql4_printk(KERN_ERR, ha,
8571 "%s: Unable to allocate dma buffer\n", __func__);
8572 goto exit_login_resp;
8573 }
8574
8575 wtime = jiffies + (HZ * BOOT_LOGIN_RESP_TOV);
8576
8577 for (idx = 0; idx < max_ddbs; idx++) {
8578 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
8579 if (ddb_entry == NULL)
8580 continue;
8581
8582 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) {
8583 DEBUG2(ql4_printk(KERN_INFO, ha,
8584 "%s: DDB index [%d]\n", __func__,
8585 ddb_entry->fw_ddb_index));
8586 do {
8587 ret = qla4xxx_get_fwddb_entry(ha,
8588 ddb_entry->fw_ddb_index,
8589 fw_ddb_entry, fw_ddb_entry_dma,
8590 NULL, NULL, &ddb_state, NULL,
8591 NULL, NULL);
8592 if (ret == QLA_ERROR)
8593 goto exit_login_resp;
8594
8595 if ((ddb_state == DDB_DS_SESSION_ACTIVE) ||
8596 (ddb_state == DDB_DS_SESSION_FAILED))
8597 break;
8598
8599 schedule_timeout_uninterruptible(HZ);
8600
8601 } while ((time_after(wtime, jiffies)));
8602
8603 if (!time_after(wtime, jiffies)) {
8604 DEBUG2(ql4_printk(KERN_INFO, ha,
8605 "%s: Login response wait timer expired\n",
8606 __func__));
8607 goto exit_login_resp;
8608 }
8609 }
8610 }
8611
8612 exit_login_resp:
8613 if (fw_ddb_entry)
8614 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8615 fw_ddb_entry, fw_ddb_entry_dma);
8616 }
8617
8618 /**
8619 * qla4xxx_probe_adapter - callback function to probe HBA
8620 * @pdev: pointer to pci_dev structure
8621 * @ent: pointer to pci_device entry
8622 *
8623 * This routine will probe for Qlogic 4xxx iSCSI host adapters.
8624 * It returns zero if successful. It also initializes all data necessary for
8625 * the driver.
8626 **/
qla4xxx_probe_adapter(struct pci_dev * pdev,const struct pci_device_id * ent)8627 static int qla4xxx_probe_adapter(struct pci_dev *pdev,
8628 const struct pci_device_id *ent)
8629 {
8630 int ret = -ENODEV, status;
8631 struct Scsi_Host *host;
8632 struct scsi_qla_host *ha;
8633 uint8_t init_retry_count = 0;
8634 char buf[34];
8635 struct qla4_8xxx_legacy_intr_set *nx_legacy_intr;
8636 uint32_t dev_state;
8637
8638 if (pci_enable_device(pdev))
8639 return -1;
8640
8641 host = iscsi_host_alloc(&qla4xxx_driver_template, sizeof(*ha), 0);
8642 if (host == NULL) {
8643 printk(KERN_WARNING
8644 "qla4xxx: Couldn't allocate host from scsi layer!\n");
8645 goto probe_disable_device;
8646 }
8647
8648 /* Clear our data area */
8649 ha = to_qla_host(host);
8650 memset(ha, 0, sizeof(*ha));
8651
8652 /* Save the information from PCI BIOS. */
8653 ha->pdev = pdev;
8654 ha->host = host;
8655 ha->host_no = host->host_no;
8656 ha->func_num = PCI_FUNC(ha->pdev->devfn);
8657
8658 pci_enable_pcie_error_reporting(pdev);
8659
8660 /* Setup Runtime configurable options */
8661 if (is_qla8022(ha)) {
8662 ha->isp_ops = &qla4_82xx_isp_ops;
8663 ha->reg_tbl = (uint32_t *) qla4_82xx_reg_tbl;
8664 ha->qdr_sn_window = -1;
8665 ha->ddr_mn_window = -1;
8666 ha->curr_window = 255;
8667 nx_legacy_intr = &legacy_intr[ha->func_num];
8668 ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit;
8669 ha->nx_legacy_intr.tgt_status_reg =
8670 nx_legacy_intr->tgt_status_reg;
8671 ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg;
8672 ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg;
8673 } else if (is_qla8032(ha) || is_qla8042(ha)) {
8674 ha->isp_ops = &qla4_83xx_isp_ops;
8675 ha->reg_tbl = (uint32_t *)qla4_83xx_reg_tbl;
8676 } else {
8677 ha->isp_ops = &qla4xxx_isp_ops;
8678 }
8679
8680 if (is_qla80XX(ha)) {
8681 rwlock_init(&ha->hw_lock);
8682 ha->pf_bit = ha->func_num << 16;
8683 /* Set EEH reset type to fundamental if required by hba */
8684 pdev->needs_freset = 1;
8685 }
8686
8687 /* Configure PCI I/O space. */
8688 ret = ha->isp_ops->iospace_config(ha);
8689 if (ret)
8690 goto probe_failed_ioconfig;
8691
8692 ql4_printk(KERN_INFO, ha, "Found an ISP%04x, irq %d, iobase 0x%p\n",
8693 pdev->device, pdev->irq, ha->reg);
8694
8695 qla4xxx_config_dma_addressing(ha);
8696
8697 /* Initialize lists and spinlocks. */
8698 INIT_LIST_HEAD(&ha->free_srb_q);
8699
8700 mutex_init(&ha->mbox_sem);
8701 mutex_init(&ha->chap_sem);
8702 init_completion(&ha->mbx_intr_comp);
8703 init_completion(&ha->disable_acb_comp);
8704 init_completion(&ha->idc_comp);
8705 init_completion(&ha->link_up_comp);
8706
8707 spin_lock_init(&ha->hardware_lock);
8708 spin_lock_init(&ha->work_lock);
8709
8710 /* Initialize work list */
8711 INIT_LIST_HEAD(&ha->work_list);
8712
8713 /* Allocate dma buffers */
8714 if (qla4xxx_mem_alloc(ha)) {
8715 ql4_printk(KERN_WARNING, ha,
8716 "[ERROR] Failed to allocate memory for adapter\n");
8717
8718 ret = -ENOMEM;
8719 goto probe_failed;
8720 }
8721
8722 host->cmd_per_lun = 3;
8723 host->max_channel = 0;
8724 host->max_lun = MAX_LUNS - 1;
8725 host->max_id = MAX_TARGETS;
8726 host->max_cmd_len = IOCB_MAX_CDB_LEN;
8727 host->can_queue = MAX_SRBS ;
8728 host->transportt = qla4xxx_scsi_transport;
8729
8730 pci_set_drvdata(pdev, ha);
8731
8732 ret = scsi_add_host(host, &pdev->dev);
8733 if (ret)
8734 goto probe_failed;
8735
8736 if (is_qla80XX(ha))
8737 qla4_8xxx_get_flash_info(ha);
8738
8739 if (is_qla8032(ha) || is_qla8042(ha)) {
8740 qla4_83xx_read_reset_template(ha);
8741 /*
8742 * NOTE: If ql4dontresethba==1, set IDC_CTRL DONTRESET_BIT0.
8743 * If DONRESET_BIT0 is set, drivers should not set dev_state
8744 * to NEED_RESET. But if NEED_RESET is set, drivers should
8745 * should honor the reset.
8746 */
8747 if (ql4xdontresethba == 1)
8748 qla4_83xx_set_idc_dontreset(ha);
8749 }
8750
8751 /*
8752 * Initialize the Host adapter request/response queues and
8753 * firmware
8754 * NOTE: interrupts enabled upon successful completion
8755 */
8756 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER);
8757
8758 /* Dont retry adapter initialization if IRQ allocation failed */
8759 if (is_qla80XX(ha) && (status == QLA_ERROR))
8760 goto skip_retry_init;
8761
8762 while ((!test_bit(AF_ONLINE, &ha->flags)) &&
8763 init_retry_count++ < MAX_INIT_RETRIES) {
8764
8765 if (is_qla80XX(ha)) {
8766 ha->isp_ops->idc_lock(ha);
8767 dev_state = qla4_8xxx_rd_direct(ha,
8768 QLA8XXX_CRB_DEV_STATE);
8769 ha->isp_ops->idc_unlock(ha);
8770 if (dev_state == QLA8XXX_DEV_FAILED) {
8771 ql4_printk(KERN_WARNING, ha, "%s: don't retry "
8772 "initialize adapter. H/W is in failed state\n",
8773 __func__);
8774 break;
8775 }
8776 }
8777 DEBUG2(printk("scsi: %s: retrying adapter initialization "
8778 "(%d)\n", __func__, init_retry_count));
8779
8780 if (ha->isp_ops->reset_chip(ha) == QLA_ERROR)
8781 continue;
8782
8783 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER);
8784 if (is_qla80XX(ha) && (status == QLA_ERROR)) {
8785 if (qla4_8xxx_check_init_adapter_retry(ha) == QLA_ERROR)
8786 goto skip_retry_init;
8787 }
8788 }
8789
8790 skip_retry_init:
8791 if (!test_bit(AF_ONLINE, &ha->flags)) {
8792 ql4_printk(KERN_WARNING, ha, "Failed to initialize adapter\n");
8793
8794 if ((is_qla8022(ha) && ql4xdontresethba) ||
8795 ((is_qla8032(ha) || is_qla8042(ha)) &&
8796 qla4_83xx_idc_dontreset(ha))) {
8797 /* Put the device in failed state. */
8798 DEBUG2(printk(KERN_ERR "HW STATE: FAILED\n"));
8799 ha->isp_ops->idc_lock(ha);
8800 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
8801 QLA8XXX_DEV_FAILED);
8802 ha->isp_ops->idc_unlock(ha);
8803 }
8804 ret = -ENODEV;
8805 goto remove_host;
8806 }
8807
8808 /* Startup the kernel thread for this host adapter. */
8809 DEBUG2(printk("scsi: %s: Starting kernel thread for "
8810 "qla4xxx_dpc\n", __func__));
8811 sprintf(buf, "qla4xxx_%lu_dpc", ha->host_no);
8812 ha->dpc_thread = create_singlethread_workqueue(buf);
8813 if (!ha->dpc_thread) {
8814 ql4_printk(KERN_WARNING, ha, "Unable to start DPC thread!\n");
8815 ret = -ENODEV;
8816 goto remove_host;
8817 }
8818 INIT_WORK(&ha->dpc_work, qla4xxx_do_dpc);
8819
8820 ha->task_wq = alloc_workqueue("qla4xxx_%lu_task", WQ_MEM_RECLAIM, 1,
8821 ha->host_no);
8822 if (!ha->task_wq) {
8823 ql4_printk(KERN_WARNING, ha, "Unable to start task thread!\n");
8824 ret = -ENODEV;
8825 goto remove_host;
8826 }
8827
8828 /*
8829 * For ISP-8XXX, request_irqs is called in qla4_8xxx_load_risc
8830 * (which is called indirectly by qla4xxx_initialize_adapter),
8831 * so that irqs will be registered after crbinit but before
8832 * mbx_intr_enable.
8833 */
8834 if (is_qla40XX(ha)) {
8835 ret = qla4xxx_request_irqs(ha);
8836 if (ret) {
8837 ql4_printk(KERN_WARNING, ha, "Failed to reserve "
8838 "interrupt %d already in use.\n", pdev->irq);
8839 goto remove_host;
8840 }
8841 }
8842
8843 pci_save_state(ha->pdev);
8844 ha->isp_ops->enable_intrs(ha);
8845
8846 /* Start timer thread. */
8847 qla4xxx_start_timer(ha, 1);
8848
8849 set_bit(AF_INIT_DONE, &ha->flags);
8850
8851 qla4_8xxx_alloc_sysfs_attr(ha);
8852
8853 printk(KERN_INFO
8854 " QLogic iSCSI HBA Driver version: %s\n"
8855 " QLogic ISP%04x @ %s, host#=%ld, fw=%02d.%02d.%02d.%02d\n",
8856 qla4xxx_version_str, ha->pdev->device, pci_name(ha->pdev),
8857 ha->host_no, ha->fw_info.fw_major, ha->fw_info.fw_minor,
8858 ha->fw_info.fw_patch, ha->fw_info.fw_build);
8859
8860 /* Set the driver version */
8861 if (is_qla80XX(ha))
8862 qla4_8xxx_set_param(ha, SET_DRVR_VERSION);
8863
8864 if (qla4xxx_setup_boot_info(ha))
8865 ql4_printk(KERN_ERR, ha,
8866 "%s: No iSCSI boot target configured\n", __func__);
8867
8868 set_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags);
8869 /* Perform the build ddb list and login to each */
8870 qla4xxx_build_ddb_list(ha, INIT_ADAPTER);
8871 iscsi_host_for_each_session(ha->host, qla4xxx_login_flash_ddb);
8872 qla4xxx_wait_login_resp_boot_tgt(ha);
8873
8874 qla4xxx_create_chap_list(ha);
8875
8876 qla4xxx_create_ifaces(ha);
8877 return 0;
8878
8879 remove_host:
8880 scsi_remove_host(ha->host);
8881
8882 probe_failed:
8883 qla4xxx_free_adapter(ha);
8884
8885 probe_failed_ioconfig:
8886 pci_disable_pcie_error_reporting(pdev);
8887 scsi_host_put(ha->host);
8888
8889 probe_disable_device:
8890 pci_disable_device(pdev);
8891
8892 return ret;
8893 }
8894
8895 /**
8896 * qla4xxx_prevent_other_port_reinit - prevent other port from re-initialize
8897 * @ha: pointer to adapter structure
8898 *
8899 * Mark the other ISP-4xxx port to indicate that the driver is being removed,
8900 * so that the other port will not re-initialize while in the process of
8901 * removing the ha due to driver unload or hba hotplug.
8902 **/
qla4xxx_prevent_other_port_reinit(struct scsi_qla_host * ha)8903 static void qla4xxx_prevent_other_port_reinit(struct scsi_qla_host *ha)
8904 {
8905 struct scsi_qla_host *other_ha = NULL;
8906 struct pci_dev *other_pdev = NULL;
8907 int fn = ISP4XXX_PCI_FN_2;
8908
8909 /*iscsi function numbers for ISP4xxx is 1 and 3*/
8910 if (PCI_FUNC(ha->pdev->devfn) & BIT_1)
8911 fn = ISP4XXX_PCI_FN_1;
8912
8913 other_pdev =
8914 pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus),
8915 ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
8916 fn));
8917
8918 /* Get other_ha if other_pdev is valid and state is enable*/
8919 if (other_pdev) {
8920 if (atomic_read(&other_pdev->enable_cnt)) {
8921 other_ha = pci_get_drvdata(other_pdev);
8922 if (other_ha) {
8923 set_bit(AF_HA_REMOVAL, &other_ha->flags);
8924 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: "
8925 "Prevent %s reinit\n", __func__,
8926 dev_name(&other_ha->pdev->dev)));
8927 }
8928 }
8929 pci_dev_put(other_pdev);
8930 }
8931 }
8932
qla4xxx_destroy_ddb(struct scsi_qla_host * ha,struct ddb_entry * ddb_entry)8933 static void qla4xxx_destroy_ddb(struct scsi_qla_host *ha,
8934 struct ddb_entry *ddb_entry)
8935 {
8936 struct dev_db_entry *fw_ddb_entry = NULL;
8937 dma_addr_t fw_ddb_entry_dma;
8938 unsigned long wtime;
8939 uint32_t ddb_state;
8940 int options;
8941 int status;
8942
8943 options = LOGOUT_OPTION_CLOSE_SESSION;
8944 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR) {
8945 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__);
8946 goto clear_ddb;
8947 }
8948
8949 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8950 &fw_ddb_entry_dma, GFP_KERNEL);
8951 if (!fw_ddb_entry) {
8952 ql4_printk(KERN_ERR, ha,
8953 "%s: Unable to allocate dma buffer\n", __func__);
8954 goto clear_ddb;
8955 }
8956
8957 wtime = jiffies + (HZ * LOGOUT_TOV);
8958 do {
8959 status = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
8960 fw_ddb_entry, fw_ddb_entry_dma,
8961 NULL, NULL, &ddb_state, NULL,
8962 NULL, NULL);
8963 if (status == QLA_ERROR)
8964 goto free_ddb;
8965
8966 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) ||
8967 (ddb_state == DDB_DS_SESSION_FAILED))
8968 goto free_ddb;
8969
8970 schedule_timeout_uninterruptible(HZ);
8971 } while ((time_after(wtime, jiffies)));
8972
8973 free_ddb:
8974 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8975 fw_ddb_entry, fw_ddb_entry_dma);
8976 clear_ddb:
8977 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
8978 }
8979
qla4xxx_destroy_fw_ddb_session(struct scsi_qla_host * ha)8980 static void qla4xxx_destroy_fw_ddb_session(struct scsi_qla_host *ha)
8981 {
8982 struct ddb_entry *ddb_entry;
8983 int idx;
8984
8985 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
8986
8987 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
8988 if ((ddb_entry != NULL) &&
8989 (ddb_entry->ddb_type == FLASH_DDB)) {
8990
8991 qla4xxx_destroy_ddb(ha, ddb_entry);
8992 /*
8993 * we have decremented the reference count of the driver
8994 * when we setup the session to have the driver unload
8995 * to be seamless without actually destroying the
8996 * session
8997 **/
8998 try_module_get(qla4xxx_iscsi_transport.owner);
8999 iscsi_destroy_endpoint(ddb_entry->conn->ep);
9000 qla4xxx_free_ddb(ha, ddb_entry);
9001 iscsi_session_teardown(ddb_entry->sess);
9002 }
9003 }
9004 }
9005 /**
9006 * qla4xxx_remove_adapter - callback function to remove adapter.
9007 * @pdev: PCI device pointer
9008 **/
qla4xxx_remove_adapter(struct pci_dev * pdev)9009 static void qla4xxx_remove_adapter(struct pci_dev *pdev)
9010 {
9011 struct scsi_qla_host *ha;
9012
9013 /*
9014 * If the PCI device is disabled then it means probe_adapter had
9015 * failed and resources already cleaned up on probe_adapter exit.
9016 */
9017 if (!pci_is_enabled(pdev))
9018 return;
9019
9020 ha = pci_get_drvdata(pdev);
9021
9022 if (is_qla40XX(ha))
9023 qla4xxx_prevent_other_port_reinit(ha);
9024
9025 /* destroy iface from sysfs */
9026 qla4xxx_destroy_ifaces(ha);
9027
9028 if ((!ql4xdisablesysfsboot) && ha->boot_kset)
9029 iscsi_boot_destroy_kset(ha->boot_kset);
9030
9031 qla4xxx_destroy_fw_ddb_session(ha);
9032 qla4_8xxx_free_sysfs_attr(ha);
9033
9034 qla4xxx_sysfs_ddb_remove(ha);
9035 scsi_remove_host(ha->host);
9036
9037 qla4xxx_free_adapter(ha);
9038
9039 scsi_host_put(ha->host);
9040
9041 pci_disable_pcie_error_reporting(pdev);
9042 pci_disable_device(pdev);
9043 }
9044
9045 /**
9046 * qla4xxx_config_dma_addressing() - Configure OS DMA addressing method.
9047 * @ha: HA context
9048 */
qla4xxx_config_dma_addressing(struct scsi_qla_host * ha)9049 static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha)
9050 {
9051 /* Update our PCI device dma_mask for full 64 bit mask */
9052 if (dma_set_mask_and_coherent(&ha->pdev->dev, DMA_BIT_MASK(64))) {
9053 dev_dbg(&ha->pdev->dev,
9054 "Failed to set 64 bit PCI consistent mask; "
9055 "using 32 bit.\n");
9056 dma_set_mask_and_coherent(&ha->pdev->dev, DMA_BIT_MASK(32));
9057 }
9058 }
9059
qla4xxx_slave_alloc(struct scsi_device * sdev)9060 static int qla4xxx_slave_alloc(struct scsi_device *sdev)
9061 {
9062 struct iscsi_cls_session *cls_sess;
9063 struct iscsi_session *sess;
9064 struct ddb_entry *ddb;
9065 int queue_depth = QL4_DEF_QDEPTH;
9066
9067 cls_sess = starget_to_session(sdev->sdev_target);
9068 sess = cls_sess->dd_data;
9069 ddb = sess->dd_data;
9070
9071 sdev->hostdata = ddb;
9072
9073 if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU)
9074 queue_depth = ql4xmaxqdepth;
9075
9076 scsi_change_queue_depth(sdev, queue_depth);
9077 return 0;
9078 }
9079
9080 /**
9081 * qla4xxx_del_from_active_array - returns an active srb
9082 * @ha: Pointer to host adapter structure.
9083 * @index: index into the active_array
9084 *
9085 * This routine removes and returns the srb at the specified index
9086 **/
qla4xxx_del_from_active_array(struct scsi_qla_host * ha,uint32_t index)9087 struct srb *qla4xxx_del_from_active_array(struct scsi_qla_host *ha,
9088 uint32_t index)
9089 {
9090 struct srb *srb = NULL;
9091 struct scsi_cmnd *cmd = NULL;
9092
9093 cmd = scsi_host_find_tag(ha->host, index);
9094 if (!cmd)
9095 return srb;
9096
9097 srb = (struct srb *)CMD_SP(cmd);
9098 if (!srb)
9099 return srb;
9100
9101 /* update counters */
9102 if (srb->flags & SRB_DMA_VALID) {
9103 ha->iocb_cnt -= srb->iocb_cnt;
9104 if (srb->cmd)
9105 srb->cmd->host_scribble =
9106 (unsigned char *)(unsigned long) MAX_SRBS;
9107 }
9108 return srb;
9109 }
9110
9111 /**
9112 * qla4xxx_eh_wait_on_command - waits for command to be returned by firmware
9113 * @ha: Pointer to host adapter structure.
9114 * @cmd: Scsi Command to wait on.
9115 *
9116 * This routine waits for the command to be returned by the Firmware
9117 * for some max time.
9118 **/
qla4xxx_eh_wait_on_command(struct scsi_qla_host * ha,struct scsi_cmnd * cmd)9119 static int qla4xxx_eh_wait_on_command(struct scsi_qla_host *ha,
9120 struct scsi_cmnd *cmd)
9121 {
9122 int done = 0;
9123 struct srb *rp;
9124 uint32_t max_wait_time = EH_WAIT_CMD_TOV;
9125 int ret = SUCCESS;
9126
9127 /* Dont wait on command if PCI error is being handled
9128 * by PCI AER driver
9129 */
9130 if (unlikely(pci_channel_offline(ha->pdev)) ||
9131 (test_bit(AF_EEH_BUSY, &ha->flags))) {
9132 ql4_printk(KERN_WARNING, ha, "scsi%ld: Return from %s\n",
9133 ha->host_no, __func__);
9134 return ret;
9135 }
9136
9137 do {
9138 /* Checking to see if its returned to OS */
9139 rp = (struct srb *) CMD_SP(cmd);
9140 if (rp == NULL) {
9141 done++;
9142 break;
9143 }
9144
9145 msleep(2000);
9146 } while (max_wait_time--);
9147
9148 return done;
9149 }
9150
9151 /**
9152 * qla4xxx_wait_for_hba_online - waits for HBA to come online
9153 * @ha: Pointer to host adapter structure
9154 **/
qla4xxx_wait_for_hba_online(struct scsi_qla_host * ha)9155 static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha)
9156 {
9157 unsigned long wait_online;
9158
9159 wait_online = jiffies + (HBA_ONLINE_TOV * HZ);
9160 while (time_before(jiffies, wait_online)) {
9161
9162 if (adapter_up(ha))
9163 return QLA_SUCCESS;
9164
9165 msleep(2000);
9166 }
9167
9168 return QLA_ERROR;
9169 }
9170
9171 /**
9172 * qla4xxx_eh_wait_for_commands - wait for active cmds to finish.
9173 * @ha: pointer to HBA
9174 * @stgt: pointer to SCSI target
9175 * @sdev: pointer to SCSI device
9176 *
9177 * This function waits for all outstanding commands to a lun to complete. It
9178 * returns 0 if all pending commands are returned and 1 otherwise.
9179 **/
qla4xxx_eh_wait_for_commands(struct scsi_qla_host * ha,struct scsi_target * stgt,struct scsi_device * sdev)9180 static int qla4xxx_eh_wait_for_commands(struct scsi_qla_host *ha,
9181 struct scsi_target *stgt,
9182 struct scsi_device *sdev)
9183 {
9184 int cnt;
9185 int status = 0;
9186 struct scsi_cmnd *cmd;
9187
9188 /*
9189 * Waiting for all commands for the designated target or dev
9190 * in the active array
9191 */
9192 for (cnt = 0; cnt < ha->host->can_queue; cnt++) {
9193 cmd = scsi_host_find_tag(ha->host, cnt);
9194 if (cmd && stgt == scsi_target(cmd->device) &&
9195 (!sdev || sdev == cmd->device)) {
9196 if (!qla4xxx_eh_wait_on_command(ha, cmd)) {
9197 status++;
9198 break;
9199 }
9200 }
9201 }
9202 return status;
9203 }
9204
9205 /**
9206 * qla4xxx_eh_abort - callback for abort task.
9207 * @cmd: Pointer to Linux's SCSI command structure
9208 *
9209 * This routine is called by the Linux OS to abort the specified
9210 * command.
9211 **/
qla4xxx_eh_abort(struct scsi_cmnd * cmd)9212 static int qla4xxx_eh_abort(struct scsi_cmnd *cmd)
9213 {
9214 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
9215 unsigned int id = cmd->device->id;
9216 uint64_t lun = cmd->device->lun;
9217 unsigned long flags;
9218 struct srb *srb = NULL;
9219 int ret = SUCCESS;
9220 int wait = 0;
9221 int rval;
9222
9223 ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%llu: Abort command issued cmd=%p, cdb=0x%x\n",
9224 ha->host_no, id, lun, cmd, cmd->cmnd[0]);
9225
9226 rval = qla4xxx_isp_check_reg(ha);
9227 if (rval != QLA_SUCCESS) {
9228 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n");
9229 return FAILED;
9230 }
9231
9232 spin_lock_irqsave(&ha->hardware_lock, flags);
9233 srb = (struct srb *) CMD_SP(cmd);
9234 if (!srb) {
9235 spin_unlock_irqrestore(&ha->hardware_lock, flags);
9236 ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%llu: Specified command has already completed.\n",
9237 ha->host_no, id, lun);
9238 return SUCCESS;
9239 }
9240 kref_get(&srb->srb_ref);
9241 spin_unlock_irqrestore(&ha->hardware_lock, flags);
9242
9243 if (qla4xxx_abort_task(ha, srb) != QLA_SUCCESS) {
9244 DEBUG3(printk("scsi%ld:%d:%llu: Abort_task mbx failed.\n",
9245 ha->host_no, id, lun));
9246 ret = FAILED;
9247 } else {
9248 DEBUG3(printk("scsi%ld:%d:%llu: Abort_task mbx success.\n",
9249 ha->host_no, id, lun));
9250 wait = 1;
9251 }
9252
9253 kref_put(&srb->srb_ref, qla4xxx_srb_compl);
9254
9255 /* Wait for command to complete */
9256 if (wait) {
9257 if (!qla4xxx_eh_wait_on_command(ha, cmd)) {
9258 DEBUG2(printk("scsi%ld:%d:%llu: Abort handler timed out\n",
9259 ha->host_no, id, lun));
9260 ret = FAILED;
9261 }
9262 }
9263
9264 ql4_printk(KERN_INFO, ha,
9265 "scsi%ld:%d:%llu: Abort command - %s\n",
9266 ha->host_no, id, lun, (ret == SUCCESS) ? "succeeded" : "failed");
9267
9268 return ret;
9269 }
9270
9271 /**
9272 * qla4xxx_eh_device_reset - callback for target reset.
9273 * @cmd: Pointer to Linux's SCSI command structure
9274 *
9275 * This routine is called by the Linux OS to reset all luns on the
9276 * specified target.
9277 **/
qla4xxx_eh_device_reset(struct scsi_cmnd * cmd)9278 static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd)
9279 {
9280 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
9281 struct ddb_entry *ddb_entry = cmd->device->hostdata;
9282 int ret = FAILED, stat;
9283 int rval;
9284
9285 if (!ddb_entry)
9286 return ret;
9287
9288 ret = iscsi_block_scsi_eh(cmd);
9289 if (ret)
9290 return ret;
9291 ret = FAILED;
9292
9293 ql4_printk(KERN_INFO, ha,
9294 "scsi%ld:%d:%d:%llu: DEVICE RESET ISSUED.\n", ha->host_no,
9295 cmd->device->channel, cmd->device->id, cmd->device->lun);
9296
9297 DEBUG2(printk(KERN_INFO
9298 "scsi%ld: DEVICE_RESET cmd=%p jiffies = 0x%lx, to=%x,"
9299 "dpc_flags=%lx, status=%x allowed=%d\n", ha->host_no,
9300 cmd, jiffies, scsi_cmd_to_rq(cmd)->timeout / HZ,
9301 ha->dpc_flags, cmd->result, cmd->allowed));
9302
9303 rval = qla4xxx_isp_check_reg(ha);
9304 if (rval != QLA_SUCCESS) {
9305 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n");
9306 return FAILED;
9307 }
9308
9309 /* FIXME: wait for hba to go online */
9310 stat = qla4xxx_reset_lun(ha, ddb_entry, cmd->device->lun);
9311 if (stat != QLA_SUCCESS) {
9312 ql4_printk(KERN_INFO, ha, "DEVICE RESET FAILED. %d\n", stat);
9313 goto eh_dev_reset_done;
9314 }
9315
9316 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device),
9317 cmd->device)) {
9318 ql4_printk(KERN_INFO, ha,
9319 "DEVICE RESET FAILED - waiting for "
9320 "commands.\n");
9321 goto eh_dev_reset_done;
9322 }
9323
9324 /* Send marker. */
9325 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun,
9326 MM_LUN_RESET) != QLA_SUCCESS)
9327 goto eh_dev_reset_done;
9328
9329 ql4_printk(KERN_INFO, ha,
9330 "scsi(%ld:%d:%d:%llu): DEVICE RESET SUCCEEDED.\n",
9331 ha->host_no, cmd->device->channel, cmd->device->id,
9332 cmd->device->lun);
9333
9334 ret = SUCCESS;
9335
9336 eh_dev_reset_done:
9337
9338 return ret;
9339 }
9340
9341 /**
9342 * qla4xxx_eh_target_reset - callback for target reset.
9343 * @cmd: Pointer to Linux's SCSI command structure
9344 *
9345 * This routine is called by the Linux OS to reset the target.
9346 **/
qla4xxx_eh_target_reset(struct scsi_cmnd * cmd)9347 static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd)
9348 {
9349 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
9350 struct ddb_entry *ddb_entry = cmd->device->hostdata;
9351 int stat, ret;
9352 int rval;
9353
9354 if (!ddb_entry)
9355 return FAILED;
9356
9357 ret = iscsi_block_scsi_eh(cmd);
9358 if (ret)
9359 return ret;
9360
9361 starget_printk(KERN_INFO, scsi_target(cmd->device),
9362 "WARM TARGET RESET ISSUED.\n");
9363
9364 DEBUG2(printk(KERN_INFO
9365 "scsi%ld: TARGET_DEVICE_RESET cmd=%p jiffies = 0x%lx, "
9366 "to=%x,dpc_flags=%lx, status=%x allowed=%d\n",
9367 ha->host_no, cmd, jiffies, scsi_cmd_to_rq(cmd)->timeout / HZ,
9368 ha->dpc_flags, cmd->result, cmd->allowed));
9369
9370 rval = qla4xxx_isp_check_reg(ha);
9371 if (rval != QLA_SUCCESS) {
9372 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n");
9373 return FAILED;
9374 }
9375
9376 stat = qla4xxx_reset_target(ha, ddb_entry);
9377 if (stat != QLA_SUCCESS) {
9378 starget_printk(KERN_INFO, scsi_target(cmd->device),
9379 "WARM TARGET RESET FAILED.\n");
9380 return FAILED;
9381 }
9382
9383 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device),
9384 NULL)) {
9385 starget_printk(KERN_INFO, scsi_target(cmd->device),
9386 "WARM TARGET DEVICE RESET FAILED - "
9387 "waiting for commands.\n");
9388 return FAILED;
9389 }
9390
9391 /* Send marker. */
9392 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun,
9393 MM_TGT_WARM_RESET) != QLA_SUCCESS) {
9394 starget_printk(KERN_INFO, scsi_target(cmd->device),
9395 "WARM TARGET DEVICE RESET FAILED - "
9396 "marker iocb failed.\n");
9397 return FAILED;
9398 }
9399
9400 starget_printk(KERN_INFO, scsi_target(cmd->device),
9401 "WARM TARGET RESET SUCCEEDED.\n");
9402 return SUCCESS;
9403 }
9404
9405 /**
9406 * qla4xxx_is_eh_active - check if error handler is running
9407 * @shost: Pointer to SCSI Host struct
9408 *
9409 * This routine finds that if reset host is called in EH
9410 * scenario or from some application like sg_reset
9411 **/
qla4xxx_is_eh_active(struct Scsi_Host * shost)9412 static int qla4xxx_is_eh_active(struct Scsi_Host *shost)
9413 {
9414 if (shost->shost_state == SHOST_RECOVERY)
9415 return 1;
9416 return 0;
9417 }
9418
9419 /**
9420 * qla4xxx_eh_host_reset - kernel callback
9421 * @cmd: Pointer to Linux's SCSI command structure
9422 *
9423 * This routine is invoked by the Linux kernel to perform fatal error
9424 * recovery on the specified adapter.
9425 **/
qla4xxx_eh_host_reset(struct scsi_cmnd * cmd)9426 static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd)
9427 {
9428 int return_status = FAILED;
9429 struct scsi_qla_host *ha;
9430 int rval;
9431
9432 ha = to_qla_host(cmd->device->host);
9433
9434 rval = qla4xxx_isp_check_reg(ha);
9435 if (rval != QLA_SUCCESS) {
9436 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n");
9437 return FAILED;
9438 }
9439
9440 if ((is_qla8032(ha) || is_qla8042(ha)) && ql4xdontresethba)
9441 qla4_83xx_set_idc_dontreset(ha);
9442
9443 /*
9444 * For ISP8324 and ISP8042, if IDC_CTRL DONTRESET_BIT0 is set by other
9445 * protocol drivers, we should not set device_state to NEED_RESET
9446 */
9447 if (ql4xdontresethba ||
9448 ((is_qla8032(ha) || is_qla8042(ha)) &&
9449 qla4_83xx_idc_dontreset(ha))) {
9450 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n",
9451 ha->host_no, __func__));
9452
9453 /* Clear outstanding srb in queues */
9454 if (qla4xxx_is_eh_active(cmd->device->host))
9455 qla4xxx_abort_active_cmds(ha, DID_ABORT << 16);
9456
9457 return FAILED;
9458 }
9459
9460 ql4_printk(KERN_INFO, ha,
9461 "scsi(%ld:%d:%d:%llu): HOST RESET ISSUED.\n", ha->host_no,
9462 cmd->device->channel, cmd->device->id, cmd->device->lun);
9463
9464 if (qla4xxx_wait_for_hba_online(ha) != QLA_SUCCESS) {
9465 DEBUG2(printk("scsi%ld:%d: %s: Unable to reset host. Adapter "
9466 "DEAD.\n", ha->host_no, cmd->device->channel,
9467 __func__));
9468
9469 return FAILED;
9470 }
9471
9472 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
9473 if (is_qla80XX(ha))
9474 set_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
9475 else
9476 set_bit(DPC_RESET_HA, &ha->dpc_flags);
9477 }
9478
9479 if (qla4xxx_recover_adapter(ha) == QLA_SUCCESS)
9480 return_status = SUCCESS;
9481
9482 ql4_printk(KERN_INFO, ha, "HOST RESET %s.\n",
9483 return_status == FAILED ? "FAILED" : "SUCCEEDED");
9484
9485 return return_status;
9486 }
9487
qla4xxx_context_reset(struct scsi_qla_host * ha)9488 static int qla4xxx_context_reset(struct scsi_qla_host *ha)
9489 {
9490 uint32_t mbox_cmd[MBOX_REG_COUNT];
9491 uint32_t mbox_sts[MBOX_REG_COUNT];
9492 struct addr_ctrl_blk_def *acb = NULL;
9493 uint32_t acb_len = sizeof(struct addr_ctrl_blk_def);
9494 int rval = QLA_SUCCESS;
9495 dma_addr_t acb_dma;
9496
9497 acb = dma_alloc_coherent(&ha->pdev->dev,
9498 sizeof(struct addr_ctrl_blk_def),
9499 &acb_dma, GFP_KERNEL);
9500 if (!acb) {
9501 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc acb\n",
9502 __func__);
9503 rval = -ENOMEM;
9504 goto exit_port_reset;
9505 }
9506
9507 memset(acb, 0, acb_len);
9508
9509 rval = qla4xxx_get_acb(ha, acb_dma, PRIMARI_ACB, acb_len);
9510 if (rval != QLA_SUCCESS) {
9511 rval = -EIO;
9512 goto exit_free_acb;
9513 }
9514
9515 rval = qla4xxx_disable_acb(ha);
9516 if (rval != QLA_SUCCESS) {
9517 rval = -EIO;
9518 goto exit_free_acb;
9519 }
9520
9521 wait_for_completion_timeout(&ha->disable_acb_comp,
9522 DISABLE_ACB_TOV * HZ);
9523
9524 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], acb_dma);
9525 if (rval != QLA_SUCCESS) {
9526 rval = -EIO;
9527 goto exit_free_acb;
9528 }
9529
9530 exit_free_acb:
9531 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk_def),
9532 acb, acb_dma);
9533 exit_port_reset:
9534 DEBUG2(ql4_printk(KERN_INFO, ha, "%s %s\n", __func__,
9535 rval == QLA_SUCCESS ? "SUCCEEDED" : "FAILED"));
9536 return rval;
9537 }
9538
qla4xxx_host_reset(struct Scsi_Host * shost,int reset_type)9539 static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type)
9540 {
9541 struct scsi_qla_host *ha = to_qla_host(shost);
9542 int rval = QLA_SUCCESS;
9543 uint32_t idc_ctrl;
9544
9545 if (ql4xdontresethba) {
9546 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Don't Reset HBA\n",
9547 __func__));
9548 rval = -EPERM;
9549 goto exit_host_reset;
9550 }
9551
9552 if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
9553 goto recover_adapter;
9554
9555 switch (reset_type) {
9556 case SCSI_ADAPTER_RESET:
9557 set_bit(DPC_RESET_HA, &ha->dpc_flags);
9558 break;
9559 case SCSI_FIRMWARE_RESET:
9560 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
9561 if (is_qla80XX(ha))
9562 /* set firmware context reset */
9563 set_bit(DPC_RESET_HA_FW_CONTEXT,
9564 &ha->dpc_flags);
9565 else {
9566 rval = qla4xxx_context_reset(ha);
9567 goto exit_host_reset;
9568 }
9569 }
9570 break;
9571 }
9572
9573 recover_adapter:
9574 /* For ISP8324 and ISP8042 set graceful reset bit in IDC_DRV_CTRL if
9575 * reset is issued by application */
9576 if ((is_qla8032(ha) || is_qla8042(ha)) &&
9577 test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
9578 idc_ctrl = qla4_83xx_rd_reg(ha, QLA83XX_IDC_DRV_CTRL);
9579 qla4_83xx_wr_reg(ha, QLA83XX_IDC_DRV_CTRL,
9580 (idc_ctrl | GRACEFUL_RESET_BIT1));
9581 }
9582
9583 rval = qla4xxx_recover_adapter(ha);
9584 if (rval != QLA_SUCCESS) {
9585 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: recover adapter fail\n",
9586 __func__));
9587 rval = -EIO;
9588 }
9589
9590 exit_host_reset:
9591 return rval;
9592 }
9593
9594 /* PCI AER driver recovers from all correctable errors w/o
9595 * driver intervention. For uncorrectable errors PCI AER
9596 * driver calls the following device driver's callbacks
9597 *
9598 * - Fatal Errors - link_reset
9599 * - Non-Fatal Errors - driver's error_detected() which
9600 * returns CAN_RECOVER, NEED_RESET or DISCONNECT.
9601 *
9602 * PCI AER driver calls
9603 * CAN_RECOVER - driver's mmio_enabled(), mmio_enabled()
9604 * returns RECOVERED or NEED_RESET if fw_hung
9605 * NEED_RESET - driver's slot_reset()
9606 * DISCONNECT - device is dead & cannot recover
9607 * RECOVERED - driver's resume()
9608 */
9609 static pci_ers_result_t
qla4xxx_pci_error_detected(struct pci_dev * pdev,pci_channel_state_t state)9610 qla4xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
9611 {
9612 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9613
9614 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: error detected:state %x\n",
9615 ha->host_no, __func__, state);
9616
9617 if (!is_aer_supported(ha))
9618 return PCI_ERS_RESULT_NONE;
9619
9620 switch (state) {
9621 case pci_channel_io_normal:
9622 clear_bit(AF_EEH_BUSY, &ha->flags);
9623 return PCI_ERS_RESULT_CAN_RECOVER;
9624 case pci_channel_io_frozen:
9625 set_bit(AF_EEH_BUSY, &ha->flags);
9626 qla4xxx_mailbox_premature_completion(ha);
9627 qla4xxx_free_irqs(ha);
9628 pci_disable_device(pdev);
9629 /* Return back all IOs */
9630 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
9631 return PCI_ERS_RESULT_NEED_RESET;
9632 case pci_channel_io_perm_failure:
9633 set_bit(AF_EEH_BUSY, &ha->flags);
9634 set_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags);
9635 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
9636 return PCI_ERS_RESULT_DISCONNECT;
9637 }
9638 return PCI_ERS_RESULT_NEED_RESET;
9639 }
9640
9641 /**
9642 * qla4xxx_pci_mmio_enabled() - gets called if
9643 * qla4xxx_pci_error_detected() returns PCI_ERS_RESULT_CAN_RECOVER
9644 * and read/write to the device still works.
9645 * @pdev: PCI device pointer
9646 **/
9647 static pci_ers_result_t
qla4xxx_pci_mmio_enabled(struct pci_dev * pdev)9648 qla4xxx_pci_mmio_enabled(struct pci_dev *pdev)
9649 {
9650 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9651
9652 if (!is_aer_supported(ha))
9653 return PCI_ERS_RESULT_NONE;
9654
9655 return PCI_ERS_RESULT_RECOVERED;
9656 }
9657
qla4_8xxx_error_recovery(struct scsi_qla_host * ha)9658 static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha)
9659 {
9660 uint32_t rval = QLA_ERROR;
9661 int fn;
9662 struct pci_dev *other_pdev = NULL;
9663
9664 ql4_printk(KERN_WARNING, ha, "scsi%ld: In %s\n", ha->host_no, __func__);
9665
9666 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
9667
9668 if (test_bit(AF_ONLINE, &ha->flags)) {
9669 clear_bit(AF_ONLINE, &ha->flags);
9670 clear_bit(AF_LINK_UP, &ha->flags);
9671 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session);
9672 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
9673 }
9674
9675 fn = PCI_FUNC(ha->pdev->devfn);
9676 if (is_qla8022(ha)) {
9677 while (fn > 0) {
9678 fn--;
9679 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Finding PCI device at func %x\n",
9680 ha->host_no, __func__, fn);
9681 /* Get the pci device given the domain, bus,
9682 * slot/function number */
9683 other_pdev = pci_get_domain_bus_and_slot(
9684 pci_domain_nr(ha->pdev->bus),
9685 ha->pdev->bus->number,
9686 PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
9687 fn));
9688
9689 if (!other_pdev)
9690 continue;
9691
9692 if (atomic_read(&other_pdev->enable_cnt)) {
9693 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Found PCI func in enabled state%x\n",
9694 ha->host_no, __func__, fn);
9695 pci_dev_put(other_pdev);
9696 break;
9697 }
9698 pci_dev_put(other_pdev);
9699 }
9700 } else {
9701 /* this case is meant for ISP83xx/ISP84xx only */
9702 if (qla4_83xx_can_perform_reset(ha)) {
9703 /* reset fn as iSCSI is going to perform the reset */
9704 fn = 0;
9705 }
9706 }
9707
9708 /* The first function on the card, the reset owner will
9709 * start & initialize the firmware. The other functions
9710 * on the card will reset the firmware context
9711 */
9712 if (!fn) {
9713 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn being reset "
9714 "0x%x is the owner\n", ha->host_no, __func__,
9715 ha->pdev->devfn);
9716
9717 ha->isp_ops->idc_lock(ha);
9718 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9719 QLA8XXX_DEV_COLD);
9720 ha->isp_ops->idc_unlock(ha);
9721
9722 rval = qla4_8xxx_update_idc_reg(ha);
9723 if (rval == QLA_ERROR) {
9724 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: FAILED\n",
9725 ha->host_no, __func__);
9726 ha->isp_ops->idc_lock(ha);
9727 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9728 QLA8XXX_DEV_FAILED);
9729 ha->isp_ops->idc_unlock(ha);
9730 goto exit_error_recovery;
9731 }
9732
9733 clear_bit(AF_FW_RECOVERY, &ha->flags);
9734 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
9735
9736 if (rval != QLA_SUCCESS) {
9737 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: "
9738 "FAILED\n", ha->host_no, __func__);
9739 qla4xxx_free_irqs(ha);
9740 ha->isp_ops->idc_lock(ha);
9741 qla4_8xxx_clear_drv_active(ha);
9742 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9743 QLA8XXX_DEV_FAILED);
9744 ha->isp_ops->idc_unlock(ha);
9745 } else {
9746 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: "
9747 "READY\n", ha->host_no, __func__);
9748 ha->isp_ops->idc_lock(ha);
9749 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9750 QLA8XXX_DEV_READY);
9751 /* Clear driver state register */
9752 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_STATE, 0);
9753 qla4_8xxx_set_drv_active(ha);
9754 ha->isp_ops->idc_unlock(ha);
9755 ha->isp_ops->enable_intrs(ha);
9756 }
9757 } else {
9758 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn 0x%x is not "
9759 "the reset owner\n", ha->host_no, __func__,
9760 ha->pdev->devfn);
9761 if ((qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE) ==
9762 QLA8XXX_DEV_READY)) {
9763 clear_bit(AF_FW_RECOVERY, &ha->flags);
9764 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
9765 if (rval == QLA_SUCCESS)
9766 ha->isp_ops->enable_intrs(ha);
9767 else
9768 qla4xxx_free_irqs(ha);
9769
9770 ha->isp_ops->idc_lock(ha);
9771 qla4_8xxx_set_drv_active(ha);
9772 ha->isp_ops->idc_unlock(ha);
9773 }
9774 }
9775 exit_error_recovery:
9776 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
9777 return rval;
9778 }
9779
9780 static pci_ers_result_t
qla4xxx_pci_slot_reset(struct pci_dev * pdev)9781 qla4xxx_pci_slot_reset(struct pci_dev *pdev)
9782 {
9783 pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
9784 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9785 int rc;
9786
9787 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: slot_reset\n",
9788 ha->host_no, __func__);
9789
9790 if (!is_aer_supported(ha))
9791 return PCI_ERS_RESULT_NONE;
9792
9793 /* Restore the saved state of PCIe device -
9794 * BAR registers, PCI Config space, PCIX, MSI,
9795 * IOV states
9796 */
9797 pci_restore_state(pdev);
9798
9799 /* pci_restore_state() clears the saved_state flag of the device
9800 * save restored state which resets saved_state flag
9801 */
9802 pci_save_state(pdev);
9803
9804 /* Initialize device or resume if in suspended state */
9805 rc = pci_enable_device(pdev);
9806 if (rc) {
9807 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Can't re-enable "
9808 "device after reset\n", ha->host_no, __func__);
9809 goto exit_slot_reset;
9810 }
9811
9812 ha->isp_ops->disable_intrs(ha);
9813
9814 if (is_qla80XX(ha)) {
9815 if (qla4_8xxx_error_recovery(ha) == QLA_SUCCESS) {
9816 ret = PCI_ERS_RESULT_RECOVERED;
9817 goto exit_slot_reset;
9818 } else
9819 goto exit_slot_reset;
9820 }
9821
9822 exit_slot_reset:
9823 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Return=%x\n"
9824 "device after reset\n", ha->host_no, __func__, ret);
9825 return ret;
9826 }
9827
9828 static void
qla4xxx_pci_resume(struct pci_dev * pdev)9829 qla4xxx_pci_resume(struct pci_dev *pdev)
9830 {
9831 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9832 int ret;
9833
9834 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: pci_resume\n",
9835 ha->host_no, __func__);
9836
9837 ret = qla4xxx_wait_for_hba_online(ha);
9838 if (ret != QLA_SUCCESS) {
9839 ql4_printk(KERN_ERR, ha, "scsi%ld: %s: the device failed to "
9840 "resume I/O from slot/link_reset\n", ha->host_no,
9841 __func__);
9842 }
9843
9844 clear_bit(AF_EEH_BUSY, &ha->flags);
9845 }
9846
9847 static const struct pci_error_handlers qla4xxx_err_handler = {
9848 .error_detected = qla4xxx_pci_error_detected,
9849 .mmio_enabled = qla4xxx_pci_mmio_enabled,
9850 .slot_reset = qla4xxx_pci_slot_reset,
9851 .resume = qla4xxx_pci_resume,
9852 };
9853
9854 static struct pci_device_id qla4xxx_pci_tbl[] = {
9855 {
9856 .vendor = PCI_VENDOR_ID_QLOGIC,
9857 .device = PCI_DEVICE_ID_QLOGIC_ISP4010,
9858 .subvendor = PCI_ANY_ID,
9859 .subdevice = PCI_ANY_ID,
9860 },
9861 {
9862 .vendor = PCI_VENDOR_ID_QLOGIC,
9863 .device = PCI_DEVICE_ID_QLOGIC_ISP4022,
9864 .subvendor = PCI_ANY_ID,
9865 .subdevice = PCI_ANY_ID,
9866 },
9867 {
9868 .vendor = PCI_VENDOR_ID_QLOGIC,
9869 .device = PCI_DEVICE_ID_QLOGIC_ISP4032,
9870 .subvendor = PCI_ANY_ID,
9871 .subdevice = PCI_ANY_ID,
9872 },
9873 {
9874 .vendor = PCI_VENDOR_ID_QLOGIC,
9875 .device = PCI_DEVICE_ID_QLOGIC_ISP8022,
9876 .subvendor = PCI_ANY_ID,
9877 .subdevice = PCI_ANY_ID,
9878 },
9879 {
9880 .vendor = PCI_VENDOR_ID_QLOGIC,
9881 .device = PCI_DEVICE_ID_QLOGIC_ISP8324,
9882 .subvendor = PCI_ANY_ID,
9883 .subdevice = PCI_ANY_ID,
9884 },
9885 {
9886 .vendor = PCI_VENDOR_ID_QLOGIC,
9887 .device = PCI_DEVICE_ID_QLOGIC_ISP8042,
9888 .subvendor = PCI_ANY_ID,
9889 .subdevice = PCI_ANY_ID,
9890 },
9891 {0, 0},
9892 };
9893 MODULE_DEVICE_TABLE(pci, qla4xxx_pci_tbl);
9894
9895 static struct pci_driver qla4xxx_pci_driver = {
9896 .name = DRIVER_NAME,
9897 .id_table = qla4xxx_pci_tbl,
9898 .probe = qla4xxx_probe_adapter,
9899 .remove = qla4xxx_remove_adapter,
9900 .err_handler = &qla4xxx_err_handler,
9901 };
9902
qla4xxx_module_init(void)9903 static int __init qla4xxx_module_init(void)
9904 {
9905 int ret;
9906
9907 if (ql4xqfulltracking)
9908 qla4xxx_driver_template.track_queue_depth = 1;
9909
9910 /* Allocate cache for SRBs. */
9911 srb_cachep = kmem_cache_create("qla4xxx_srbs", sizeof(struct srb), 0,
9912 SLAB_HWCACHE_ALIGN, NULL);
9913 if (srb_cachep == NULL) {
9914 printk(KERN_ERR
9915 "%s: Unable to allocate SRB cache..."
9916 "Failing load!\n", DRIVER_NAME);
9917 ret = -ENOMEM;
9918 goto no_srp_cache;
9919 }
9920
9921 /* Derive version string. */
9922 strcpy(qla4xxx_version_str, QLA4XXX_DRIVER_VERSION);
9923 if (ql4xextended_error_logging)
9924 strcat(qla4xxx_version_str, "-debug");
9925
9926 qla4xxx_scsi_transport =
9927 iscsi_register_transport(&qla4xxx_iscsi_transport);
9928 if (!qla4xxx_scsi_transport){
9929 ret = -ENODEV;
9930 goto release_srb_cache;
9931 }
9932
9933 ret = pci_register_driver(&qla4xxx_pci_driver);
9934 if (ret)
9935 goto unregister_transport;
9936
9937 printk(KERN_INFO "QLogic iSCSI HBA Driver\n");
9938 return 0;
9939
9940 unregister_transport:
9941 iscsi_unregister_transport(&qla4xxx_iscsi_transport);
9942 release_srb_cache:
9943 kmem_cache_destroy(srb_cachep);
9944 no_srp_cache:
9945 return ret;
9946 }
9947
qla4xxx_module_exit(void)9948 static void __exit qla4xxx_module_exit(void)
9949 {
9950 pci_unregister_driver(&qla4xxx_pci_driver);
9951 iscsi_unregister_transport(&qla4xxx_iscsi_transport);
9952 kmem_cache_destroy(srb_cachep);
9953 }
9954
9955 module_init(qla4xxx_module_init);
9956 module_exit(qla4xxx_module_exit);
9957
9958 MODULE_AUTHOR("QLogic Corporation");
9959 MODULE_DESCRIPTION("QLogic iSCSI HBA Driver");
9960 MODULE_LICENSE("GPL");
9961 MODULE_VERSION(QLA4XXX_DRIVER_VERSION);
9962