1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * QLogic iSCSI HBA Driver
4 * Copyright (c) 2003-2013 QLogic Corporation
5 */
6 #include <linux/moduleparam.h>
7 #include <linux/slab.h>
8 #include <linux/blkdev.h>
9 #include <linux/iscsi_boot_sysfs.h>
10 #include <linux/inet.h>
11
12 #include <scsi/scsi_tcq.h>
13 #include <scsi/scsicam.h>
14
15 #include "ql4_def.h"
16 #include "ql4_version.h"
17 #include "ql4_glbl.h"
18 #include "ql4_dbg.h"
19 #include "ql4_inline.h"
20 #include "ql4_83xx.h"
21
22 /*
23 * Driver version
24 */
25 static char qla4xxx_version_str[40];
26
27 /*
28 * SRB allocation cache
29 */
30 static struct kmem_cache *srb_cachep;
31
32 /*
33 * Module parameter information and variables
34 */
35 static int ql4xdisablesysfsboot = 1;
36 module_param(ql4xdisablesysfsboot, int, S_IRUGO | S_IWUSR);
37 MODULE_PARM_DESC(ql4xdisablesysfsboot,
38 " Set to disable exporting boot targets to sysfs.\n"
39 "\t\t 0 - Export boot targets\n"
40 "\t\t 1 - Do not export boot targets (Default)");
41
42 int ql4xdontresethba;
43 module_param(ql4xdontresethba, int, S_IRUGO | S_IWUSR);
44 MODULE_PARM_DESC(ql4xdontresethba,
45 " Don't reset the HBA for driver recovery.\n"
46 "\t\t 0 - It will reset HBA (Default)\n"
47 "\t\t 1 - It will NOT reset HBA");
48
49 int ql4xextended_error_logging;
50 module_param(ql4xextended_error_logging, int, S_IRUGO | S_IWUSR);
51 MODULE_PARM_DESC(ql4xextended_error_logging,
52 " Option to enable extended error logging.\n"
53 "\t\t 0 - no logging (Default)\n"
54 "\t\t 2 - debug logging");
55
56 int ql4xenablemsix = 1;
57 module_param(ql4xenablemsix, int, S_IRUGO|S_IWUSR);
58 MODULE_PARM_DESC(ql4xenablemsix,
59 " Set to enable MSI or MSI-X interrupt mechanism.\n"
60 "\t\t 0 = enable INTx interrupt mechanism.\n"
61 "\t\t 1 = enable MSI-X interrupt mechanism (Default).\n"
62 "\t\t 2 = enable MSI interrupt mechanism.");
63
64 #define QL4_DEF_QDEPTH 32
65 static int ql4xmaxqdepth = QL4_DEF_QDEPTH;
66 module_param(ql4xmaxqdepth, int, S_IRUGO | S_IWUSR);
67 MODULE_PARM_DESC(ql4xmaxqdepth,
68 " Maximum queue depth to report for target devices.\n"
69 "\t\t Default: 32.");
70
71 static int ql4xqfulltracking = 1;
72 module_param(ql4xqfulltracking, int, S_IRUGO | S_IWUSR);
73 MODULE_PARM_DESC(ql4xqfulltracking,
74 " Enable or disable dynamic tracking and adjustment of\n"
75 "\t\t scsi device queue depth.\n"
76 "\t\t 0 - Disable.\n"
77 "\t\t 1 - Enable. (Default)");
78
79 static int ql4xsess_recovery_tmo = QL4_SESS_RECOVERY_TMO;
80 module_param(ql4xsess_recovery_tmo, int, S_IRUGO);
81 MODULE_PARM_DESC(ql4xsess_recovery_tmo,
82 " Target Session Recovery Timeout.\n"
83 "\t\t Default: 120 sec.");
84
85 int ql4xmdcapmask = 0;
86 module_param(ql4xmdcapmask, int, S_IRUGO);
87 MODULE_PARM_DESC(ql4xmdcapmask,
88 " Set the Minidump driver capture mask level.\n"
89 "\t\t Default is 0 (firmware default capture mask)\n"
90 "\t\t Can be set to 0x3, 0x7, 0xF, 0x1F, 0x3F, 0x7F, 0xFF");
91
92 int ql4xenablemd = 1;
93 module_param(ql4xenablemd, int, S_IRUGO | S_IWUSR);
94 MODULE_PARM_DESC(ql4xenablemd,
95 " Set to enable minidump.\n"
96 "\t\t 0 - disable minidump\n"
97 "\t\t 1 - enable minidump (Default)");
98
99 static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha);
100 /*
101 * SCSI host template entry points
102 */
103 static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha);
104
105 /*
106 * iSCSI template entry points
107 */
108 static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess,
109 enum iscsi_param param, char *buf);
110 static int qla4xxx_conn_get_param(struct iscsi_cls_conn *conn,
111 enum iscsi_param param, char *buf);
112 static int qla4xxx_host_get_param(struct Scsi_Host *shost,
113 enum iscsi_host_param param, char *buf);
114 static int qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data,
115 uint32_t len);
116 static int qla4xxx_get_iface_param(struct iscsi_iface *iface,
117 enum iscsi_param_type param_type,
118 int param, char *buf);
119 static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc);
120 static struct iscsi_endpoint *qla4xxx_ep_connect(struct Scsi_Host *shost,
121 struct sockaddr *dst_addr,
122 int non_blocking);
123 static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms);
124 static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep);
125 static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep,
126 enum iscsi_param param, char *buf);
127 static int qla4xxx_conn_start(struct iscsi_cls_conn *conn);
128 static struct iscsi_cls_conn *
129 qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx);
130 static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session,
131 struct iscsi_cls_conn *cls_conn,
132 uint64_t transport_fd, int is_leading);
133 static void qla4xxx_conn_destroy(struct iscsi_cls_conn *conn);
134 static struct iscsi_cls_session *
135 qla4xxx_session_create(struct iscsi_endpoint *ep, uint16_t cmds_max,
136 uint16_t qdepth, uint32_t initial_cmdsn);
137 static void qla4xxx_session_destroy(struct iscsi_cls_session *sess);
138 static void qla4xxx_task_work(struct work_struct *wdata);
139 static int qla4xxx_alloc_pdu(struct iscsi_task *, uint8_t);
140 static int qla4xxx_task_xmit(struct iscsi_task *);
141 static void qla4xxx_task_cleanup(struct iscsi_task *);
142 static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session);
143 static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn,
144 struct iscsi_stats *stats);
145 static int qla4xxx_send_ping(struct Scsi_Host *shost, uint32_t iface_num,
146 uint32_t iface_type, uint32_t payload_size,
147 uint32_t pid, struct sockaddr *dst_addr);
148 static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx,
149 uint32_t *num_entries, char *buf);
150 static int qla4xxx_delete_chap(struct Scsi_Host *shost, uint16_t chap_tbl_idx);
151 static int qla4xxx_set_chap_entry(struct Scsi_Host *shost, void *data,
152 int len);
153 static int qla4xxx_get_host_stats(struct Scsi_Host *shost, char *buf, int len);
154
155 /*
156 * SCSI host template entry points
157 */
158 static int qla4xxx_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *cmd);
159 static int qla4xxx_eh_abort(struct scsi_cmnd *cmd);
160 static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd);
161 static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd);
162 static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd);
163 static int qla4xxx_slave_alloc(struct scsi_device *device);
164 static umode_t qla4_attr_is_visible(int param_type, int param);
165 static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type);
166
167 /*
168 * iSCSI Flash DDB sysfs entry points
169 */
170 static int
171 qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess,
172 struct iscsi_bus_flash_conn *fnode_conn,
173 void *data, int len);
174 static int
175 qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session *fnode_sess,
176 int param, char *buf);
177 static int qla4xxx_sysfs_ddb_add(struct Scsi_Host *shost, const char *buf,
178 int len);
179 static int
180 qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess);
181 static int qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess,
182 struct iscsi_bus_flash_conn *fnode_conn);
183 static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess,
184 struct iscsi_bus_flash_conn *fnode_conn);
185 static int qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess);
186
187 static struct qla4_8xxx_legacy_intr_set legacy_intr[] =
188 QLA82XX_LEGACY_INTR_CONFIG;
189
190 static const uint32_t qla4_82xx_reg_tbl[] = {
191 QLA82XX_PEG_HALT_STATUS1,
192 QLA82XX_PEG_HALT_STATUS2,
193 QLA82XX_PEG_ALIVE_COUNTER,
194 QLA82XX_CRB_DRV_ACTIVE,
195 QLA82XX_CRB_DEV_STATE,
196 QLA82XX_CRB_DRV_STATE,
197 QLA82XX_CRB_DRV_SCRATCH,
198 QLA82XX_CRB_DEV_PART_INFO,
199 QLA82XX_CRB_DRV_IDC_VERSION,
200 QLA82XX_FW_VERSION_MAJOR,
201 QLA82XX_FW_VERSION_MINOR,
202 QLA82XX_FW_VERSION_SUB,
203 CRB_CMDPEG_STATE,
204 CRB_TEMP_STATE,
205 };
206
207 static const uint32_t qla4_83xx_reg_tbl[] = {
208 QLA83XX_PEG_HALT_STATUS1,
209 QLA83XX_PEG_HALT_STATUS2,
210 QLA83XX_PEG_ALIVE_COUNTER,
211 QLA83XX_CRB_DRV_ACTIVE,
212 QLA83XX_CRB_DEV_STATE,
213 QLA83XX_CRB_DRV_STATE,
214 QLA83XX_CRB_DRV_SCRATCH,
215 QLA83XX_CRB_DEV_PART_INFO1,
216 QLA83XX_CRB_IDC_VER_MAJOR,
217 QLA83XX_FW_VER_MAJOR,
218 QLA83XX_FW_VER_MINOR,
219 QLA83XX_FW_VER_SUB,
220 QLA83XX_CMDPEG_STATE,
221 QLA83XX_ASIC_TEMP,
222 };
223
224 static struct scsi_host_template qla4xxx_driver_template = {
225 .module = THIS_MODULE,
226 .name = DRIVER_NAME,
227 .proc_name = DRIVER_NAME,
228 .queuecommand = qla4xxx_queuecommand,
229
230 .eh_abort_handler = qla4xxx_eh_abort,
231 .eh_device_reset_handler = qla4xxx_eh_device_reset,
232 .eh_target_reset_handler = qla4xxx_eh_target_reset,
233 .eh_host_reset_handler = qla4xxx_eh_host_reset,
234 .eh_timed_out = qla4xxx_eh_cmd_timed_out,
235
236 .slave_alloc = qla4xxx_slave_alloc,
237 .change_queue_depth = scsi_change_queue_depth,
238
239 .this_id = -1,
240 .cmd_per_lun = 3,
241 .sg_tablesize = SG_ALL,
242
243 .max_sectors = 0xFFFF,
244 .shost_attrs = qla4xxx_host_attrs,
245 .host_reset = qla4xxx_host_reset,
246 .vendor_id = SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC,
247 };
248
249 static struct iscsi_transport qla4xxx_iscsi_transport = {
250 .owner = THIS_MODULE,
251 .name = DRIVER_NAME,
252 .caps = CAP_TEXT_NEGO |
253 CAP_DATA_PATH_OFFLOAD | CAP_HDRDGST |
254 CAP_DATADGST | CAP_LOGIN_OFFLOAD |
255 CAP_MULTI_R2T,
256 .attr_is_visible = qla4_attr_is_visible,
257 .create_session = qla4xxx_session_create,
258 .destroy_session = qla4xxx_session_destroy,
259 .start_conn = qla4xxx_conn_start,
260 .create_conn = qla4xxx_conn_create,
261 .bind_conn = qla4xxx_conn_bind,
262 .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 rval = QLA_ERROR;
690 goto exit_get_chap;
691 }
692
693 if (is_qla80XX(ha))
694 max_chap_entries = (ha->hw.flt_chap_size / 2) /
695 sizeof(struct ql4_chap_table);
696 else
697 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
698
699 if (chap_index > max_chap_entries) {
700 ql4_printk(KERN_ERR, ha, "Invalid Chap index\n");
701 rval = QLA_ERROR;
702 goto exit_get_chap;
703 }
704
705 *chap_entry = (struct ql4_chap_table *)ha->chap_list + chap_index;
706 if ((*chap_entry)->cookie !=
707 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) {
708 rval = QLA_ERROR;
709 *chap_entry = NULL;
710 } else {
711 rval = QLA_SUCCESS;
712 }
713
714 exit_get_chap:
715 return rval;
716 }
717
718 /**
719 * qla4xxx_find_free_chap_index - Find the first free chap index
720 * @ha: pointer to adapter structure
721 * @chap_index: CHAP index to be returned
722 *
723 * Find the first free chap index available in the chap table
724 *
725 * Note: Caller should acquire the chap lock before getting here.
726 **/
qla4xxx_find_free_chap_index(struct scsi_qla_host *ha, uint16_t *chap_index)727 static int qla4xxx_find_free_chap_index(struct scsi_qla_host *ha,
728 uint16_t *chap_index)
729 {
730 int i, rval;
731 int free_index = -1;
732 int max_chap_entries = 0;
733 struct ql4_chap_table *chap_table;
734
735 if (is_qla80XX(ha))
736 max_chap_entries = (ha->hw.flt_chap_size / 2) /
737 sizeof(struct ql4_chap_table);
738 else
739 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
740
741 if (!ha->chap_list) {
742 ql4_printk(KERN_ERR, ha, "CHAP table cache is empty!\n");
743 rval = QLA_ERROR;
744 goto exit_find_chap;
745 }
746
747 for (i = 0; i < max_chap_entries; i++) {
748 chap_table = (struct ql4_chap_table *)ha->chap_list + i;
749
750 if ((chap_table->cookie !=
751 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) &&
752 (i > MAX_RESRV_CHAP_IDX)) {
753 free_index = i;
754 break;
755 }
756 }
757
758 if (free_index != -1) {
759 *chap_index = free_index;
760 rval = QLA_SUCCESS;
761 } else {
762 rval = QLA_ERROR;
763 }
764
765 exit_find_chap:
766 return rval;
767 }
768
qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx, uint32_t *num_entries, char *buf)769 static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx,
770 uint32_t *num_entries, char *buf)
771 {
772 struct scsi_qla_host *ha = to_qla_host(shost);
773 struct ql4_chap_table *chap_table;
774 struct iscsi_chap_rec *chap_rec;
775 int max_chap_entries = 0;
776 int valid_chap_entries = 0;
777 int ret = 0, i;
778
779 if (is_qla80XX(ha))
780 max_chap_entries = (ha->hw.flt_chap_size / 2) /
781 sizeof(struct ql4_chap_table);
782 else
783 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
784
785 ql4_printk(KERN_INFO, ha, "%s: num_entries = %d, CHAP idx = %d\n",
786 __func__, *num_entries, chap_tbl_idx);
787
788 if (!buf) {
789 ret = -ENOMEM;
790 goto exit_get_chap_list;
791 }
792
793 qla4xxx_create_chap_list(ha);
794
795 chap_rec = (struct iscsi_chap_rec *) buf;
796 mutex_lock(&ha->chap_sem);
797 for (i = chap_tbl_idx; i < max_chap_entries; i++) {
798 chap_table = (struct ql4_chap_table *)ha->chap_list + i;
799 if (chap_table->cookie !=
800 __constant_cpu_to_le16(CHAP_VALID_COOKIE))
801 continue;
802
803 chap_rec->chap_tbl_idx = i;
804 strlcpy(chap_rec->username, chap_table->name,
805 ISCSI_CHAP_AUTH_NAME_MAX_LEN);
806 strlcpy(chap_rec->password, chap_table->secret,
807 QL4_CHAP_MAX_SECRET_LEN);
808 chap_rec->password_length = chap_table->secret_len;
809
810 if (chap_table->flags & BIT_7) /* local */
811 chap_rec->chap_type = CHAP_TYPE_OUT;
812
813 if (chap_table->flags & BIT_6) /* peer */
814 chap_rec->chap_type = CHAP_TYPE_IN;
815
816 chap_rec++;
817
818 valid_chap_entries++;
819 if (valid_chap_entries == *num_entries)
820 break;
821 else
822 continue;
823 }
824 mutex_unlock(&ha->chap_sem);
825
826 exit_get_chap_list:
827 ql4_printk(KERN_INFO, ha, "%s: Valid CHAP Entries = %d\n",
828 __func__, valid_chap_entries);
829 *num_entries = valid_chap_entries;
830 return ret;
831 }
832
__qla4xxx_is_chap_active(struct device *dev, void *data)833 static int __qla4xxx_is_chap_active(struct device *dev, void *data)
834 {
835 int ret = 0;
836 uint16_t *chap_tbl_idx = (uint16_t *) data;
837 struct iscsi_cls_session *cls_session;
838 struct iscsi_session *sess;
839 struct ddb_entry *ddb_entry;
840
841 if (!iscsi_is_session_dev(dev))
842 goto exit_is_chap_active;
843
844 cls_session = iscsi_dev_to_session(dev);
845 sess = cls_session->dd_data;
846 ddb_entry = sess->dd_data;
847
848 if (iscsi_session_chkready(cls_session))
849 goto exit_is_chap_active;
850
851 if (ddb_entry->chap_tbl_idx == *chap_tbl_idx)
852 ret = 1;
853
854 exit_is_chap_active:
855 return ret;
856 }
857
qla4xxx_is_chap_active(struct Scsi_Host *shost, uint16_t chap_tbl_idx)858 static int qla4xxx_is_chap_active(struct Scsi_Host *shost,
859 uint16_t chap_tbl_idx)
860 {
861 int ret = 0;
862
863 ret = device_for_each_child(&shost->shost_gendev, &chap_tbl_idx,
864 __qla4xxx_is_chap_active);
865
866 return ret;
867 }
868
qla4xxx_delete_chap(struct Scsi_Host *shost, uint16_t chap_tbl_idx)869 static int qla4xxx_delete_chap(struct Scsi_Host *shost, uint16_t chap_tbl_idx)
870 {
871 struct scsi_qla_host *ha = to_qla_host(shost);
872 struct ql4_chap_table *chap_table;
873 dma_addr_t chap_dma;
874 int max_chap_entries = 0;
875 uint32_t offset = 0;
876 uint32_t chap_size;
877 int ret = 0;
878
879 chap_table = dma_pool_zalloc(ha->chap_dma_pool, GFP_KERNEL, &chap_dma);
880 if (chap_table == NULL)
881 return -ENOMEM;
882
883 if (is_qla80XX(ha))
884 max_chap_entries = (ha->hw.flt_chap_size / 2) /
885 sizeof(struct ql4_chap_table);
886 else
887 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
888
889 if (chap_tbl_idx > max_chap_entries) {
890 ret = -EINVAL;
891 goto exit_delete_chap;
892 }
893
894 /* Check if chap index is in use.
895 * If chap is in use don't delet chap entry */
896 ret = qla4xxx_is_chap_active(shost, chap_tbl_idx);
897 if (ret) {
898 ql4_printk(KERN_INFO, ha, "CHAP entry %d is in use, cannot "
899 "delete from flash\n", chap_tbl_idx);
900 ret = -EBUSY;
901 goto exit_delete_chap;
902 }
903
904 chap_size = sizeof(struct ql4_chap_table);
905 if (is_qla40XX(ha))
906 offset = FLASH_CHAP_OFFSET | (chap_tbl_idx * chap_size);
907 else {
908 offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2);
909 /* flt_chap_size is CHAP table size for both ports
910 * so divide it by 2 to calculate the offset for second port
911 */
912 if (ha->port_num == 1)
913 offset += (ha->hw.flt_chap_size / 2);
914 offset += (chap_tbl_idx * chap_size);
915 }
916
917 ret = qla4xxx_get_flash(ha, chap_dma, offset, chap_size);
918 if (ret != QLA_SUCCESS) {
919 ret = -EINVAL;
920 goto exit_delete_chap;
921 }
922
923 DEBUG2(ql4_printk(KERN_INFO, ha, "Chap Cookie: x%x\n",
924 __le16_to_cpu(chap_table->cookie)));
925
926 if (__le16_to_cpu(chap_table->cookie) != CHAP_VALID_COOKIE) {
927 ql4_printk(KERN_ERR, ha, "No valid chap entry found\n");
928 goto exit_delete_chap;
929 }
930
931 chap_table->cookie = __constant_cpu_to_le16(0xFFFF);
932
933 offset = FLASH_CHAP_OFFSET |
934 (chap_tbl_idx * sizeof(struct ql4_chap_table));
935 ret = qla4xxx_set_flash(ha, chap_dma, offset, chap_size,
936 FLASH_OPT_RMW_COMMIT);
937 if (ret == QLA_SUCCESS && ha->chap_list) {
938 mutex_lock(&ha->chap_sem);
939 /* Update ha chap_list cache */
940 memcpy((struct ql4_chap_table *)ha->chap_list + chap_tbl_idx,
941 chap_table, sizeof(struct ql4_chap_table));
942 mutex_unlock(&ha->chap_sem);
943 }
944 if (ret != QLA_SUCCESS)
945 ret = -EINVAL;
946
947 exit_delete_chap:
948 dma_pool_free(ha->chap_dma_pool, chap_table, chap_dma);
949 return ret;
950 }
951
952 /**
953 * qla4xxx_set_chap_entry - Make chap entry with given information
954 * @shost: pointer to host
955 * @data: chap info - credentials, index and type to make chap entry
956 * @len: length of data
957 *
958 * Add or update chap entry with the given information
959 **/
qla4xxx_set_chap_entry(struct Scsi_Host *shost, void *data, int len)960 static int qla4xxx_set_chap_entry(struct Scsi_Host *shost, void *data, int len)
961 {
962 struct scsi_qla_host *ha = to_qla_host(shost);
963 struct iscsi_chap_rec chap_rec;
964 struct ql4_chap_table *chap_entry = NULL;
965 struct iscsi_param_info *param_info;
966 struct nlattr *attr;
967 int max_chap_entries = 0;
968 int type;
969 int rem = len;
970 int rc = 0;
971 int size;
972
973 memset(&chap_rec, 0, sizeof(chap_rec));
974
975 nla_for_each_attr(attr, data, len, rem) {
976 if (nla_len(attr) < sizeof(*param_info)) {
977 rc = -EINVAL;
978 goto exit_set_chap;
979 }
980
981 param_info = nla_data(attr);
982
983 switch (param_info->param) {
984 case ISCSI_CHAP_PARAM_INDEX:
985 chap_rec.chap_tbl_idx = *(uint16_t *)param_info->value;
986 break;
987 case ISCSI_CHAP_PARAM_CHAP_TYPE:
988 chap_rec.chap_type = param_info->value[0];
989 break;
990 case ISCSI_CHAP_PARAM_USERNAME:
991 size = min_t(size_t, sizeof(chap_rec.username),
992 param_info->len);
993 memcpy(chap_rec.username, param_info->value, size);
994 break;
995 case ISCSI_CHAP_PARAM_PASSWORD:
996 size = min_t(size_t, sizeof(chap_rec.password),
997 param_info->len);
998 memcpy(chap_rec.password, param_info->value, size);
999 break;
1000 case ISCSI_CHAP_PARAM_PASSWORD_LEN:
1001 chap_rec.password_length = param_info->value[0];
1002 break;
1003 default:
1004 ql4_printk(KERN_ERR, ha,
1005 "%s: No such sysfs attribute\n", __func__);
1006 rc = -ENOSYS;
1007 goto exit_set_chap;
1008 }
1009 }
1010
1011 if (chap_rec.chap_type == CHAP_TYPE_IN)
1012 type = BIDI_CHAP;
1013 else
1014 type = LOCAL_CHAP;
1015
1016 if (is_qla80XX(ha))
1017 max_chap_entries = (ha->hw.flt_chap_size / 2) /
1018 sizeof(struct ql4_chap_table);
1019 else
1020 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
1021
1022 mutex_lock(&ha->chap_sem);
1023 if (chap_rec.chap_tbl_idx < max_chap_entries) {
1024 rc = qla4xxx_get_chap_by_index(ha, chap_rec.chap_tbl_idx,
1025 &chap_entry);
1026 if (!rc) {
1027 if (!(type == qla4xxx_get_chap_type(chap_entry))) {
1028 ql4_printk(KERN_INFO, ha,
1029 "Type mismatch for CHAP entry %d\n",
1030 chap_rec.chap_tbl_idx);
1031 rc = -EINVAL;
1032 goto exit_unlock_chap;
1033 }
1034
1035 /* If chap index is in use then don't modify it */
1036 rc = qla4xxx_is_chap_active(shost,
1037 chap_rec.chap_tbl_idx);
1038 if (rc) {
1039 ql4_printk(KERN_INFO, ha,
1040 "CHAP entry %d is in use\n",
1041 chap_rec.chap_tbl_idx);
1042 rc = -EBUSY;
1043 goto exit_unlock_chap;
1044 }
1045 }
1046 } else {
1047 rc = qla4xxx_find_free_chap_index(ha, &chap_rec.chap_tbl_idx);
1048 if (rc) {
1049 ql4_printk(KERN_INFO, ha, "CHAP entry not available\n");
1050 rc = -EBUSY;
1051 goto exit_unlock_chap;
1052 }
1053 }
1054
1055 rc = qla4xxx_set_chap(ha, chap_rec.username, chap_rec.password,
1056 chap_rec.chap_tbl_idx, type);
1057
1058 exit_unlock_chap:
1059 mutex_unlock(&ha->chap_sem);
1060
1061 exit_set_chap:
1062 return rc;
1063 }
1064
1065
qla4xxx_get_host_stats(struct Scsi_Host *shost, char *buf, int len)1066 static int qla4xxx_get_host_stats(struct Scsi_Host *shost, char *buf, int len)
1067 {
1068 struct scsi_qla_host *ha = to_qla_host(shost);
1069 struct iscsi_offload_host_stats *host_stats = NULL;
1070 int host_stats_size;
1071 int ret = 0;
1072 int ddb_idx = 0;
1073 struct ql_iscsi_stats *ql_iscsi_stats = NULL;
1074 int stats_size;
1075 dma_addr_t iscsi_stats_dma;
1076
1077 DEBUG2(ql4_printk(KERN_INFO, ha, "Func: %s\n", __func__));
1078
1079 host_stats_size = sizeof(struct iscsi_offload_host_stats);
1080
1081 if (host_stats_size != len) {
1082 ql4_printk(KERN_INFO, ha, "%s: host_stats size mismatch expected = %d, is = %d\n",
1083 __func__, len, host_stats_size);
1084 ret = -EINVAL;
1085 goto exit_host_stats;
1086 }
1087 host_stats = (struct iscsi_offload_host_stats *)buf;
1088
1089 if (!buf) {
1090 ret = -ENOMEM;
1091 goto exit_host_stats;
1092 }
1093
1094 stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats));
1095
1096 ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size,
1097 &iscsi_stats_dma, GFP_KERNEL);
1098 if (!ql_iscsi_stats) {
1099 ql4_printk(KERN_ERR, ha,
1100 "Unable to allocate memory for iscsi stats\n");
1101 ret = -ENOMEM;
1102 goto exit_host_stats;
1103 }
1104
1105 ret = qla4xxx_get_mgmt_data(ha, ddb_idx, stats_size,
1106 iscsi_stats_dma);
1107 if (ret != QLA_SUCCESS) {
1108 ql4_printk(KERN_ERR, ha,
1109 "Unable to retrieve iscsi stats\n");
1110 ret = -EIO;
1111 goto exit_host_stats;
1112 }
1113 host_stats->mactx_frames = le64_to_cpu(ql_iscsi_stats->mac_tx_frames);
1114 host_stats->mactx_bytes = le64_to_cpu(ql_iscsi_stats->mac_tx_bytes);
1115 host_stats->mactx_multicast_frames =
1116 le64_to_cpu(ql_iscsi_stats->mac_tx_multicast_frames);
1117 host_stats->mactx_broadcast_frames =
1118 le64_to_cpu(ql_iscsi_stats->mac_tx_broadcast_frames);
1119 host_stats->mactx_pause_frames =
1120 le64_to_cpu(ql_iscsi_stats->mac_tx_pause_frames);
1121 host_stats->mactx_control_frames =
1122 le64_to_cpu(ql_iscsi_stats->mac_tx_control_frames);
1123 host_stats->mactx_deferral =
1124 le64_to_cpu(ql_iscsi_stats->mac_tx_deferral);
1125 host_stats->mactx_excess_deferral =
1126 le64_to_cpu(ql_iscsi_stats->mac_tx_excess_deferral);
1127 host_stats->mactx_late_collision =
1128 le64_to_cpu(ql_iscsi_stats->mac_tx_late_collision);
1129 host_stats->mactx_abort = le64_to_cpu(ql_iscsi_stats->mac_tx_abort);
1130 host_stats->mactx_single_collision =
1131 le64_to_cpu(ql_iscsi_stats->mac_tx_single_collision);
1132 host_stats->mactx_multiple_collision =
1133 le64_to_cpu(ql_iscsi_stats->mac_tx_multiple_collision);
1134 host_stats->mactx_collision =
1135 le64_to_cpu(ql_iscsi_stats->mac_tx_collision);
1136 host_stats->mactx_frames_dropped =
1137 le64_to_cpu(ql_iscsi_stats->mac_tx_frames_dropped);
1138 host_stats->mactx_jumbo_frames =
1139 le64_to_cpu(ql_iscsi_stats->mac_tx_jumbo_frames);
1140 host_stats->macrx_frames = le64_to_cpu(ql_iscsi_stats->mac_rx_frames);
1141 host_stats->macrx_bytes = le64_to_cpu(ql_iscsi_stats->mac_rx_bytes);
1142 host_stats->macrx_unknown_control_frames =
1143 le64_to_cpu(ql_iscsi_stats->mac_rx_unknown_control_frames);
1144 host_stats->macrx_pause_frames =
1145 le64_to_cpu(ql_iscsi_stats->mac_rx_pause_frames);
1146 host_stats->macrx_control_frames =
1147 le64_to_cpu(ql_iscsi_stats->mac_rx_control_frames);
1148 host_stats->macrx_dribble =
1149 le64_to_cpu(ql_iscsi_stats->mac_rx_dribble);
1150 host_stats->macrx_frame_length_error =
1151 le64_to_cpu(ql_iscsi_stats->mac_rx_frame_length_error);
1152 host_stats->macrx_jabber = le64_to_cpu(ql_iscsi_stats->mac_rx_jabber);
1153 host_stats->macrx_carrier_sense_error =
1154 le64_to_cpu(ql_iscsi_stats->mac_rx_carrier_sense_error);
1155 host_stats->macrx_frame_discarded =
1156 le64_to_cpu(ql_iscsi_stats->mac_rx_frame_discarded);
1157 host_stats->macrx_frames_dropped =
1158 le64_to_cpu(ql_iscsi_stats->mac_rx_frames_dropped);
1159 host_stats->mac_crc_error = le64_to_cpu(ql_iscsi_stats->mac_crc_error);
1160 host_stats->mac_encoding_error =
1161 le64_to_cpu(ql_iscsi_stats->mac_encoding_error);
1162 host_stats->macrx_length_error_large =
1163 le64_to_cpu(ql_iscsi_stats->mac_rx_length_error_large);
1164 host_stats->macrx_length_error_small =
1165 le64_to_cpu(ql_iscsi_stats->mac_rx_length_error_small);
1166 host_stats->macrx_multicast_frames =
1167 le64_to_cpu(ql_iscsi_stats->mac_rx_multicast_frames);
1168 host_stats->macrx_broadcast_frames =
1169 le64_to_cpu(ql_iscsi_stats->mac_rx_broadcast_frames);
1170 host_stats->iptx_packets = le64_to_cpu(ql_iscsi_stats->ip_tx_packets);
1171 host_stats->iptx_bytes = le64_to_cpu(ql_iscsi_stats->ip_tx_bytes);
1172 host_stats->iptx_fragments =
1173 le64_to_cpu(ql_iscsi_stats->ip_tx_fragments);
1174 host_stats->iprx_packets = le64_to_cpu(ql_iscsi_stats->ip_rx_packets);
1175 host_stats->iprx_bytes = le64_to_cpu(ql_iscsi_stats->ip_rx_bytes);
1176 host_stats->iprx_fragments =
1177 le64_to_cpu(ql_iscsi_stats->ip_rx_fragments);
1178 host_stats->ip_datagram_reassembly =
1179 le64_to_cpu(ql_iscsi_stats->ip_datagram_reassembly);
1180 host_stats->ip_invalid_address_error =
1181 le64_to_cpu(ql_iscsi_stats->ip_invalid_address_error);
1182 host_stats->ip_error_packets =
1183 le64_to_cpu(ql_iscsi_stats->ip_error_packets);
1184 host_stats->ip_fragrx_overlap =
1185 le64_to_cpu(ql_iscsi_stats->ip_fragrx_overlap);
1186 host_stats->ip_fragrx_outoforder =
1187 le64_to_cpu(ql_iscsi_stats->ip_fragrx_outoforder);
1188 host_stats->ip_datagram_reassembly_timeout =
1189 le64_to_cpu(ql_iscsi_stats->ip_datagram_reassembly_timeout);
1190 host_stats->ipv6tx_packets =
1191 le64_to_cpu(ql_iscsi_stats->ipv6_tx_packets);
1192 host_stats->ipv6tx_bytes = le64_to_cpu(ql_iscsi_stats->ipv6_tx_bytes);
1193 host_stats->ipv6tx_fragments =
1194 le64_to_cpu(ql_iscsi_stats->ipv6_tx_fragments);
1195 host_stats->ipv6rx_packets =
1196 le64_to_cpu(ql_iscsi_stats->ipv6_rx_packets);
1197 host_stats->ipv6rx_bytes = le64_to_cpu(ql_iscsi_stats->ipv6_rx_bytes);
1198 host_stats->ipv6rx_fragments =
1199 le64_to_cpu(ql_iscsi_stats->ipv6_rx_fragments);
1200 host_stats->ipv6_datagram_reassembly =
1201 le64_to_cpu(ql_iscsi_stats->ipv6_datagram_reassembly);
1202 host_stats->ipv6_invalid_address_error =
1203 le64_to_cpu(ql_iscsi_stats->ipv6_invalid_address_error);
1204 host_stats->ipv6_error_packets =
1205 le64_to_cpu(ql_iscsi_stats->ipv6_error_packets);
1206 host_stats->ipv6_fragrx_overlap =
1207 le64_to_cpu(ql_iscsi_stats->ipv6_fragrx_overlap);
1208 host_stats->ipv6_fragrx_outoforder =
1209 le64_to_cpu(ql_iscsi_stats->ipv6_fragrx_outoforder);
1210 host_stats->ipv6_datagram_reassembly_timeout =
1211 le64_to_cpu(ql_iscsi_stats->ipv6_datagram_reassembly_timeout);
1212 host_stats->tcptx_segments =
1213 le64_to_cpu(ql_iscsi_stats->tcp_tx_segments);
1214 host_stats->tcptx_bytes = le64_to_cpu(ql_iscsi_stats->tcp_tx_bytes);
1215 host_stats->tcprx_segments =
1216 le64_to_cpu(ql_iscsi_stats->tcp_rx_segments);
1217 host_stats->tcprx_byte = le64_to_cpu(ql_iscsi_stats->tcp_rx_byte);
1218 host_stats->tcp_duplicate_ack_retx =
1219 le64_to_cpu(ql_iscsi_stats->tcp_duplicate_ack_retx);
1220 host_stats->tcp_retx_timer_expired =
1221 le64_to_cpu(ql_iscsi_stats->tcp_retx_timer_expired);
1222 host_stats->tcprx_duplicate_ack =
1223 le64_to_cpu(ql_iscsi_stats->tcp_rx_duplicate_ack);
1224 host_stats->tcprx_pure_ackr =
1225 le64_to_cpu(ql_iscsi_stats->tcp_rx_pure_ackr);
1226 host_stats->tcptx_delayed_ack =
1227 le64_to_cpu(ql_iscsi_stats->tcp_tx_delayed_ack);
1228 host_stats->tcptx_pure_ack =
1229 le64_to_cpu(ql_iscsi_stats->tcp_tx_pure_ack);
1230 host_stats->tcprx_segment_error =
1231 le64_to_cpu(ql_iscsi_stats->tcp_rx_segment_error);
1232 host_stats->tcprx_segment_outoforder =
1233 le64_to_cpu(ql_iscsi_stats->tcp_rx_segment_outoforder);
1234 host_stats->tcprx_window_probe =
1235 le64_to_cpu(ql_iscsi_stats->tcp_rx_window_probe);
1236 host_stats->tcprx_window_update =
1237 le64_to_cpu(ql_iscsi_stats->tcp_rx_window_update);
1238 host_stats->tcptx_window_probe_persist =
1239 le64_to_cpu(ql_iscsi_stats->tcp_tx_window_probe_persist);
1240 host_stats->ecc_error_correction =
1241 le64_to_cpu(ql_iscsi_stats->ecc_error_correction);
1242 host_stats->iscsi_pdu_tx = le64_to_cpu(ql_iscsi_stats->iscsi_pdu_tx);
1243 host_stats->iscsi_data_bytes_tx =
1244 le64_to_cpu(ql_iscsi_stats->iscsi_data_bytes_tx);
1245 host_stats->iscsi_pdu_rx = le64_to_cpu(ql_iscsi_stats->iscsi_pdu_rx);
1246 host_stats->iscsi_data_bytes_rx =
1247 le64_to_cpu(ql_iscsi_stats->iscsi_data_bytes_rx);
1248 host_stats->iscsi_io_completed =
1249 le64_to_cpu(ql_iscsi_stats->iscsi_io_completed);
1250 host_stats->iscsi_unexpected_io_rx =
1251 le64_to_cpu(ql_iscsi_stats->iscsi_unexpected_io_rx);
1252 host_stats->iscsi_format_error =
1253 le64_to_cpu(ql_iscsi_stats->iscsi_format_error);
1254 host_stats->iscsi_hdr_digest_error =
1255 le64_to_cpu(ql_iscsi_stats->iscsi_hdr_digest_error);
1256 host_stats->iscsi_data_digest_error =
1257 le64_to_cpu(ql_iscsi_stats->iscsi_data_digest_error);
1258 host_stats->iscsi_sequence_error =
1259 le64_to_cpu(ql_iscsi_stats->iscsi_sequence_error);
1260 exit_host_stats:
1261 if (ql_iscsi_stats)
1262 dma_free_coherent(&ha->pdev->dev, stats_size,
1263 ql_iscsi_stats, iscsi_stats_dma);
1264
1265 ql4_printk(KERN_INFO, ha, "%s: Get host stats done\n",
1266 __func__);
1267 return ret;
1268 }
1269
qla4xxx_get_iface_param(struct iscsi_iface *iface, enum iscsi_param_type param_type, int param, char *buf)1270 static int qla4xxx_get_iface_param(struct iscsi_iface *iface,
1271 enum iscsi_param_type param_type,
1272 int param, char *buf)
1273 {
1274 struct Scsi_Host *shost = iscsi_iface_to_shost(iface);
1275 struct scsi_qla_host *ha = to_qla_host(shost);
1276 int ival;
1277 char *pval = NULL;
1278 int len = -ENOSYS;
1279
1280 if (param_type == ISCSI_NET_PARAM) {
1281 switch (param) {
1282 case ISCSI_NET_PARAM_IPV4_ADDR:
1283 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address);
1284 break;
1285 case ISCSI_NET_PARAM_IPV4_SUBNET:
1286 len = sprintf(buf, "%pI4\n",
1287 &ha->ip_config.subnet_mask);
1288 break;
1289 case ISCSI_NET_PARAM_IPV4_GW:
1290 len = sprintf(buf, "%pI4\n", &ha->ip_config.gateway);
1291 break;
1292 case ISCSI_NET_PARAM_IFACE_ENABLE:
1293 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1294 OP_STATE(ha->ip_config.ipv4_options,
1295 IPOPT_IPV4_PROTOCOL_ENABLE, pval);
1296 } else {
1297 OP_STATE(ha->ip_config.ipv6_options,
1298 IPV6_OPT_IPV6_PROTOCOL_ENABLE, pval);
1299 }
1300
1301 len = sprintf(buf, "%s\n", pval);
1302 break;
1303 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
1304 len = sprintf(buf, "%s\n",
1305 (ha->ip_config.tcp_options &
1306 TCPOPT_DHCP_ENABLE) ?
1307 "dhcp" : "static");
1308 break;
1309 case ISCSI_NET_PARAM_IPV6_ADDR:
1310 if (iface->iface_num == 0)
1311 len = sprintf(buf, "%pI6\n",
1312 &ha->ip_config.ipv6_addr0);
1313 if (iface->iface_num == 1)
1314 len = sprintf(buf, "%pI6\n",
1315 &ha->ip_config.ipv6_addr1);
1316 break;
1317 case ISCSI_NET_PARAM_IPV6_LINKLOCAL:
1318 len = sprintf(buf, "%pI6\n",
1319 &ha->ip_config.ipv6_link_local_addr);
1320 break;
1321 case ISCSI_NET_PARAM_IPV6_ROUTER:
1322 len = sprintf(buf, "%pI6\n",
1323 &ha->ip_config.ipv6_default_router_addr);
1324 break;
1325 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG:
1326 pval = (ha->ip_config.ipv6_addl_options &
1327 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE) ?
1328 "nd" : "static";
1329
1330 len = sprintf(buf, "%s\n", pval);
1331 break;
1332 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG:
1333 pval = (ha->ip_config.ipv6_addl_options &
1334 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR) ?
1335 "auto" : "static";
1336
1337 len = sprintf(buf, "%s\n", pval);
1338 break;
1339 case ISCSI_NET_PARAM_VLAN_ID:
1340 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1341 ival = ha->ip_config.ipv4_vlan_tag &
1342 ISCSI_MAX_VLAN_ID;
1343 else
1344 ival = ha->ip_config.ipv6_vlan_tag &
1345 ISCSI_MAX_VLAN_ID;
1346
1347 len = sprintf(buf, "%d\n", ival);
1348 break;
1349 case ISCSI_NET_PARAM_VLAN_PRIORITY:
1350 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1351 ival = (ha->ip_config.ipv4_vlan_tag >> 13) &
1352 ISCSI_MAX_VLAN_PRIORITY;
1353 else
1354 ival = (ha->ip_config.ipv6_vlan_tag >> 13) &
1355 ISCSI_MAX_VLAN_PRIORITY;
1356
1357 len = sprintf(buf, "%d\n", ival);
1358 break;
1359 case ISCSI_NET_PARAM_VLAN_ENABLED:
1360 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1361 OP_STATE(ha->ip_config.ipv4_options,
1362 IPOPT_VLAN_TAGGING_ENABLE, pval);
1363 } else {
1364 OP_STATE(ha->ip_config.ipv6_options,
1365 IPV6_OPT_VLAN_TAGGING_ENABLE, pval);
1366 }
1367 len = sprintf(buf, "%s\n", pval);
1368 break;
1369 case ISCSI_NET_PARAM_MTU:
1370 len = sprintf(buf, "%d\n", ha->ip_config.eth_mtu_size);
1371 break;
1372 case ISCSI_NET_PARAM_PORT:
1373 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1374 len = sprintf(buf, "%d\n",
1375 ha->ip_config.ipv4_port);
1376 else
1377 len = sprintf(buf, "%d\n",
1378 ha->ip_config.ipv6_port);
1379 break;
1380 case ISCSI_NET_PARAM_IPADDR_STATE:
1381 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1382 pval = iscsi_get_ipaddress_state_name(
1383 ha->ip_config.ipv4_addr_state);
1384 } else {
1385 if (iface->iface_num == 0)
1386 pval = iscsi_get_ipaddress_state_name(
1387 ha->ip_config.ipv6_addr0_state);
1388 else if (iface->iface_num == 1)
1389 pval = iscsi_get_ipaddress_state_name(
1390 ha->ip_config.ipv6_addr1_state);
1391 }
1392
1393 len = sprintf(buf, "%s\n", pval);
1394 break;
1395 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_STATE:
1396 pval = iscsi_get_ipaddress_state_name(
1397 ha->ip_config.ipv6_link_local_state);
1398 len = sprintf(buf, "%s\n", pval);
1399 break;
1400 case ISCSI_NET_PARAM_IPV6_ROUTER_STATE:
1401 pval = iscsi_get_router_state_name(
1402 ha->ip_config.ipv6_default_router_state);
1403 len = sprintf(buf, "%s\n", pval);
1404 break;
1405 case ISCSI_NET_PARAM_DELAYED_ACK_EN:
1406 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1407 OP_STATE(~ha->ip_config.tcp_options,
1408 TCPOPT_DELAYED_ACK_DISABLE, pval);
1409 } else {
1410 OP_STATE(~ha->ip_config.ipv6_tcp_options,
1411 IPV6_TCPOPT_DELAYED_ACK_DISABLE, pval);
1412 }
1413 len = sprintf(buf, "%s\n", pval);
1414 break;
1415 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE:
1416 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1417 OP_STATE(~ha->ip_config.tcp_options,
1418 TCPOPT_NAGLE_ALGO_DISABLE, pval);
1419 } else {
1420 OP_STATE(~ha->ip_config.ipv6_tcp_options,
1421 IPV6_TCPOPT_NAGLE_ALGO_DISABLE, pval);
1422 }
1423 len = sprintf(buf, "%s\n", pval);
1424 break;
1425 case ISCSI_NET_PARAM_TCP_WSF_DISABLE:
1426 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1427 OP_STATE(~ha->ip_config.tcp_options,
1428 TCPOPT_WINDOW_SCALE_DISABLE, pval);
1429 } else {
1430 OP_STATE(~ha->ip_config.ipv6_tcp_options,
1431 IPV6_TCPOPT_WINDOW_SCALE_DISABLE,
1432 pval);
1433 }
1434 len = sprintf(buf, "%s\n", pval);
1435 break;
1436 case ISCSI_NET_PARAM_TCP_WSF:
1437 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1438 len = sprintf(buf, "%d\n",
1439 ha->ip_config.tcp_wsf);
1440 else
1441 len = sprintf(buf, "%d\n",
1442 ha->ip_config.ipv6_tcp_wsf);
1443 break;
1444 case ISCSI_NET_PARAM_TCP_TIMER_SCALE:
1445 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1446 ival = (ha->ip_config.tcp_options &
1447 TCPOPT_TIMER_SCALE) >> 1;
1448 else
1449 ival = (ha->ip_config.ipv6_tcp_options &
1450 IPV6_TCPOPT_TIMER_SCALE) >> 1;
1451
1452 len = sprintf(buf, "%d\n", ival);
1453 break;
1454 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN:
1455 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1456 OP_STATE(ha->ip_config.tcp_options,
1457 TCPOPT_TIMESTAMP_ENABLE, pval);
1458 } else {
1459 OP_STATE(ha->ip_config.ipv6_tcp_options,
1460 IPV6_TCPOPT_TIMESTAMP_EN, pval);
1461 }
1462 len = sprintf(buf, "%s\n", pval);
1463 break;
1464 case ISCSI_NET_PARAM_CACHE_ID:
1465 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1466 len = sprintf(buf, "%d\n",
1467 ha->ip_config.ipv4_cache_id);
1468 else
1469 len = sprintf(buf, "%d\n",
1470 ha->ip_config.ipv6_cache_id);
1471 break;
1472 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN:
1473 OP_STATE(ha->ip_config.tcp_options,
1474 TCPOPT_DNS_SERVER_IP_EN, pval);
1475
1476 len = sprintf(buf, "%s\n", pval);
1477 break;
1478 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN:
1479 OP_STATE(ha->ip_config.tcp_options,
1480 TCPOPT_SLP_DA_INFO_EN, pval);
1481
1482 len = sprintf(buf, "%s\n", pval);
1483 break;
1484 case ISCSI_NET_PARAM_IPV4_TOS_EN:
1485 OP_STATE(ha->ip_config.ipv4_options,
1486 IPOPT_IPV4_TOS_EN, pval);
1487
1488 len = sprintf(buf, "%s\n", pval);
1489 break;
1490 case ISCSI_NET_PARAM_IPV4_TOS:
1491 len = sprintf(buf, "%d\n", ha->ip_config.ipv4_tos);
1492 break;
1493 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN:
1494 OP_STATE(ha->ip_config.ipv4_options,
1495 IPOPT_GRAT_ARP_EN, pval);
1496
1497 len = sprintf(buf, "%s\n", pval);
1498 break;
1499 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN:
1500 OP_STATE(ha->ip_config.ipv4_options, IPOPT_ALT_CID_EN,
1501 pval);
1502
1503 len = sprintf(buf, "%s\n", pval);
1504 break;
1505 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID:
1506 pval = (ha->ip_config.ipv4_alt_cid_len) ?
1507 (char *)ha->ip_config.ipv4_alt_cid : "";
1508
1509 len = sprintf(buf, "%s\n", pval);
1510 break;
1511 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN:
1512 OP_STATE(ha->ip_config.ipv4_options,
1513 IPOPT_REQ_VID_EN, pval);
1514
1515 len = sprintf(buf, "%s\n", pval);
1516 break;
1517 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN:
1518 OP_STATE(ha->ip_config.ipv4_options,
1519 IPOPT_USE_VID_EN, pval);
1520
1521 len = sprintf(buf, "%s\n", pval);
1522 break;
1523 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID:
1524 pval = (ha->ip_config.ipv4_vid_len) ?
1525 (char *)ha->ip_config.ipv4_vid : "";
1526
1527 len = sprintf(buf, "%s\n", pval);
1528 break;
1529 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN:
1530 OP_STATE(ha->ip_config.ipv4_options,
1531 IPOPT_LEARN_IQN_EN, pval);
1532
1533 len = sprintf(buf, "%s\n", pval);
1534 break;
1535 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE:
1536 OP_STATE(~ha->ip_config.ipv4_options,
1537 IPOPT_FRAGMENTATION_DISABLE, pval);
1538
1539 len = sprintf(buf, "%s\n", pval);
1540 break;
1541 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN:
1542 OP_STATE(ha->ip_config.ipv4_options,
1543 IPOPT_IN_FORWARD_EN, pval);
1544
1545 len = sprintf(buf, "%s\n", pval);
1546 break;
1547 case ISCSI_NET_PARAM_REDIRECT_EN:
1548 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1549 OP_STATE(ha->ip_config.ipv4_options,
1550 IPOPT_ARP_REDIRECT_EN, pval);
1551 } else {
1552 OP_STATE(ha->ip_config.ipv6_options,
1553 IPV6_OPT_REDIRECT_EN, pval);
1554 }
1555 len = sprintf(buf, "%s\n", pval);
1556 break;
1557 case ISCSI_NET_PARAM_IPV4_TTL:
1558 len = sprintf(buf, "%d\n", ha->ip_config.ipv4_ttl);
1559 break;
1560 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN:
1561 OP_STATE(ha->ip_config.ipv6_options,
1562 IPV6_OPT_GRAT_NEIGHBOR_ADV_EN, pval);
1563
1564 len = sprintf(buf, "%s\n", pval);
1565 break;
1566 case ISCSI_NET_PARAM_IPV6_MLD_EN:
1567 OP_STATE(ha->ip_config.ipv6_addl_options,
1568 IPV6_ADDOPT_MLD_EN, pval);
1569
1570 len = sprintf(buf, "%s\n", pval);
1571 break;
1572 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL:
1573 len = sprintf(buf, "%u\n", ha->ip_config.ipv6_flow_lbl);
1574 break;
1575 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS:
1576 len = sprintf(buf, "%d\n",
1577 ha->ip_config.ipv6_traffic_class);
1578 break;
1579 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT:
1580 len = sprintf(buf, "%d\n",
1581 ha->ip_config.ipv6_hop_limit);
1582 break;
1583 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO:
1584 len = sprintf(buf, "%d\n",
1585 ha->ip_config.ipv6_nd_reach_time);
1586 break;
1587 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME:
1588 len = sprintf(buf, "%d\n",
1589 ha->ip_config.ipv6_nd_rexmit_timer);
1590 break;
1591 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO:
1592 len = sprintf(buf, "%d\n",
1593 ha->ip_config.ipv6_nd_stale_timeout);
1594 break;
1595 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT:
1596 len = sprintf(buf, "%d\n",
1597 ha->ip_config.ipv6_dup_addr_detect_count);
1598 break;
1599 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU:
1600 len = sprintf(buf, "%d\n",
1601 ha->ip_config.ipv6_gw_advrt_mtu);
1602 break;
1603 default:
1604 len = -ENOSYS;
1605 }
1606 } else if (param_type == ISCSI_IFACE_PARAM) {
1607 switch (param) {
1608 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO:
1609 len = sprintf(buf, "%d\n", ha->ip_config.def_timeout);
1610 break;
1611 case ISCSI_IFACE_PARAM_HDRDGST_EN:
1612 OP_STATE(ha->ip_config.iscsi_options,
1613 ISCSIOPTS_HEADER_DIGEST_EN, pval);
1614
1615 len = sprintf(buf, "%s\n", pval);
1616 break;
1617 case ISCSI_IFACE_PARAM_DATADGST_EN:
1618 OP_STATE(ha->ip_config.iscsi_options,
1619 ISCSIOPTS_DATA_DIGEST_EN, pval);
1620
1621 len = sprintf(buf, "%s\n", pval);
1622 break;
1623 case ISCSI_IFACE_PARAM_IMM_DATA_EN:
1624 OP_STATE(ha->ip_config.iscsi_options,
1625 ISCSIOPTS_IMMEDIATE_DATA_EN, pval);
1626
1627 len = sprintf(buf, "%s\n", pval);
1628 break;
1629 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN:
1630 OP_STATE(ha->ip_config.iscsi_options,
1631 ISCSIOPTS_INITIAL_R2T_EN, pval);
1632
1633 len = sprintf(buf, "%s\n", pval);
1634 break;
1635 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN:
1636 OP_STATE(ha->ip_config.iscsi_options,
1637 ISCSIOPTS_DATA_SEQ_INORDER_EN, pval);
1638
1639 len = sprintf(buf, "%s\n", pval);
1640 break;
1641 case ISCSI_IFACE_PARAM_PDU_INORDER_EN:
1642 OP_STATE(ha->ip_config.iscsi_options,
1643 ISCSIOPTS_DATA_PDU_INORDER_EN, pval);
1644
1645 len = sprintf(buf, "%s\n", pval);
1646 break;
1647 case ISCSI_IFACE_PARAM_ERL:
1648 len = sprintf(buf, "%d\n",
1649 (ha->ip_config.iscsi_options &
1650 ISCSIOPTS_ERL));
1651 break;
1652 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH:
1653 len = sprintf(buf, "%u\n",
1654 ha->ip_config.iscsi_max_pdu_size *
1655 BYTE_UNITS);
1656 break;
1657 case ISCSI_IFACE_PARAM_FIRST_BURST:
1658 len = sprintf(buf, "%u\n",
1659 ha->ip_config.iscsi_first_burst_len *
1660 BYTE_UNITS);
1661 break;
1662 case ISCSI_IFACE_PARAM_MAX_R2T:
1663 len = sprintf(buf, "%d\n",
1664 ha->ip_config.iscsi_max_outstnd_r2t);
1665 break;
1666 case ISCSI_IFACE_PARAM_MAX_BURST:
1667 len = sprintf(buf, "%u\n",
1668 ha->ip_config.iscsi_max_burst_len *
1669 BYTE_UNITS);
1670 break;
1671 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN:
1672 OP_STATE(ha->ip_config.iscsi_options,
1673 ISCSIOPTS_CHAP_AUTH_EN, pval);
1674
1675 len = sprintf(buf, "%s\n", pval);
1676 break;
1677 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN:
1678 OP_STATE(ha->ip_config.iscsi_options,
1679 ISCSIOPTS_BIDI_CHAP_EN, pval);
1680
1681 len = sprintf(buf, "%s\n", pval);
1682 break;
1683 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL:
1684 OP_STATE(ha->ip_config.iscsi_options,
1685 ISCSIOPTS_DISCOVERY_AUTH_EN, pval);
1686
1687 len = sprintf(buf, "%s\n", pval);
1688 break;
1689 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN:
1690 OP_STATE(ha->ip_config.iscsi_options,
1691 ISCSIOPTS_DISCOVERY_LOGOUT_EN, pval);
1692
1693 len = sprintf(buf, "%s\n", pval);
1694 break;
1695 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN:
1696 OP_STATE(ha->ip_config.iscsi_options,
1697 ISCSIOPTS_STRICT_LOGIN_COMP_EN, pval);
1698
1699 len = sprintf(buf, "%s\n", pval);
1700 break;
1701 case ISCSI_IFACE_PARAM_INITIATOR_NAME:
1702 len = sprintf(buf, "%s\n", ha->ip_config.iscsi_name);
1703 break;
1704 default:
1705 len = -ENOSYS;
1706 }
1707 }
1708
1709 return len;
1710 }
1711
1712 static struct iscsi_endpoint *
qla4xxx_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr, int non_blocking)1713 qla4xxx_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr,
1714 int non_blocking)
1715 {
1716 int ret;
1717 struct iscsi_endpoint *ep;
1718 struct qla_endpoint *qla_ep;
1719 struct scsi_qla_host *ha;
1720 struct sockaddr_in *addr;
1721 struct sockaddr_in6 *addr6;
1722
1723 if (!shost) {
1724 ret = -ENXIO;
1725 pr_err("%s: shost is NULL\n", __func__);
1726 return ERR_PTR(ret);
1727 }
1728
1729 ha = iscsi_host_priv(shost);
1730 ep = iscsi_create_endpoint(sizeof(struct qla_endpoint));
1731 if (!ep) {
1732 ret = -ENOMEM;
1733 return ERR_PTR(ret);
1734 }
1735
1736 qla_ep = ep->dd_data;
1737 memset(qla_ep, 0, sizeof(struct qla_endpoint));
1738 if (dst_addr->sa_family == AF_INET) {
1739 memcpy(&qla_ep->dst_addr, dst_addr, sizeof(struct sockaddr_in));
1740 addr = (struct sockaddr_in *)&qla_ep->dst_addr;
1741 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI4\n", __func__,
1742 (char *)&addr->sin_addr));
1743 } else if (dst_addr->sa_family == AF_INET6) {
1744 memcpy(&qla_ep->dst_addr, dst_addr,
1745 sizeof(struct sockaddr_in6));
1746 addr6 = (struct sockaddr_in6 *)&qla_ep->dst_addr;
1747 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI6\n", __func__,
1748 (char *)&addr6->sin6_addr));
1749 } else {
1750 ql4_printk(KERN_WARNING, ha, "%s: Invalid endpoint\n",
1751 __func__);
1752 }
1753
1754 qla_ep->host = shost;
1755
1756 return ep;
1757 }
1758
qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms)1759 static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms)
1760 {
1761 struct qla_endpoint *qla_ep;
1762 struct scsi_qla_host *ha;
1763 int ret = 0;
1764
1765 qla_ep = ep->dd_data;
1766 ha = to_qla_host(qla_ep->host);
1767 DEBUG2(pr_info_ratelimited("%s: host: %ld\n", __func__, ha->host_no));
1768
1769 if (adapter_up(ha) && !test_bit(AF_BUILD_DDB_LIST, &ha->flags))
1770 ret = 1;
1771
1772 return ret;
1773 }
1774
qla4xxx_ep_disconnect(struct iscsi_endpoint *ep)1775 static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep)
1776 {
1777 struct qla_endpoint *qla_ep;
1778 struct scsi_qla_host *ha;
1779
1780 qla_ep = ep->dd_data;
1781 ha = to_qla_host(qla_ep->host);
1782 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__,
1783 ha->host_no));
1784 iscsi_destroy_endpoint(ep);
1785 }
1786
qla4xxx_get_ep_param(struct iscsi_endpoint *ep, enum iscsi_param param, char *buf)1787 static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep,
1788 enum iscsi_param param,
1789 char *buf)
1790 {
1791 struct qla_endpoint *qla_ep = ep->dd_data;
1792 struct sockaddr *dst_addr;
1793 struct scsi_qla_host *ha;
1794
1795 if (!qla_ep)
1796 return -ENOTCONN;
1797
1798 ha = to_qla_host(qla_ep->host);
1799 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__,
1800 ha->host_no));
1801
1802 switch (param) {
1803 case ISCSI_PARAM_CONN_PORT:
1804 case ISCSI_PARAM_CONN_ADDRESS:
1805 dst_addr = (struct sockaddr *)&qla_ep->dst_addr;
1806 if (!dst_addr)
1807 return -ENOTCONN;
1808
1809 return iscsi_conn_get_addr_param((struct sockaddr_storage *)
1810 &qla_ep->dst_addr, param, buf);
1811 default:
1812 return -ENOSYS;
1813 }
1814 }
1815
qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn, struct iscsi_stats *stats)1816 static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn,
1817 struct iscsi_stats *stats)
1818 {
1819 struct iscsi_session *sess;
1820 struct iscsi_cls_session *cls_sess;
1821 struct ddb_entry *ddb_entry;
1822 struct scsi_qla_host *ha;
1823 struct ql_iscsi_stats *ql_iscsi_stats;
1824 int stats_size;
1825 int ret;
1826 dma_addr_t iscsi_stats_dma;
1827
1828 cls_sess = iscsi_conn_to_session(cls_conn);
1829 sess = cls_sess->dd_data;
1830 ddb_entry = sess->dd_data;
1831 ha = ddb_entry->ha;
1832
1833 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__,
1834 ha->host_no));
1835 stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats));
1836 /* Allocate memory */
1837 ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size,
1838 &iscsi_stats_dma, GFP_KERNEL);
1839 if (!ql_iscsi_stats) {
1840 ql4_printk(KERN_ERR, ha,
1841 "Unable to allocate memory for iscsi stats\n");
1842 goto exit_get_stats;
1843 }
1844
1845 ret = qla4xxx_get_mgmt_data(ha, ddb_entry->fw_ddb_index, stats_size,
1846 iscsi_stats_dma);
1847 if (ret != QLA_SUCCESS) {
1848 ql4_printk(KERN_ERR, ha,
1849 "Unable to retrieve iscsi stats\n");
1850 goto free_stats;
1851 }
1852
1853 /* octets */
1854 stats->txdata_octets = le64_to_cpu(ql_iscsi_stats->tx_data_octets);
1855 stats->rxdata_octets = le64_to_cpu(ql_iscsi_stats->rx_data_octets);
1856 /* xmit pdus */
1857 stats->noptx_pdus = le32_to_cpu(ql_iscsi_stats->tx_nopout_pdus);
1858 stats->scsicmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_cmd_pdus);
1859 stats->tmfcmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_tmf_cmd_pdus);
1860 stats->login_pdus = le32_to_cpu(ql_iscsi_stats->tx_login_cmd_pdus);
1861 stats->text_pdus = le32_to_cpu(ql_iscsi_stats->tx_text_cmd_pdus);
1862 stats->dataout_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_write_pdus);
1863 stats->logout_pdus = le32_to_cpu(ql_iscsi_stats->tx_logout_cmd_pdus);
1864 stats->snack_pdus = le32_to_cpu(ql_iscsi_stats->tx_snack_req_pdus);
1865 /* recv pdus */
1866 stats->noprx_pdus = le32_to_cpu(ql_iscsi_stats->rx_nopin_pdus);
1867 stats->scsirsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_resp_pdus);
1868 stats->tmfrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_tmf_resp_pdus);
1869 stats->textrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_text_resp_pdus);
1870 stats->datain_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_read_pdus);
1871 stats->logoutrsp_pdus =
1872 le32_to_cpu(ql_iscsi_stats->rx_logout_resp_pdus);
1873 stats->r2t_pdus = le32_to_cpu(ql_iscsi_stats->rx_r2t_pdus);
1874 stats->async_pdus = le32_to_cpu(ql_iscsi_stats->rx_async_pdus);
1875 stats->rjt_pdus = le32_to_cpu(ql_iscsi_stats->rx_reject_pdus);
1876
1877 free_stats:
1878 dma_free_coherent(&ha->pdev->dev, stats_size, ql_iscsi_stats,
1879 iscsi_stats_dma);
1880 exit_get_stats:
1881 return;
1882 }
1883
qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc)1884 static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc)
1885 {
1886 struct iscsi_cls_session *session;
1887 unsigned long flags;
1888 enum blk_eh_timer_return ret = BLK_EH_DONE;
1889
1890 session = starget_to_session(scsi_target(sc->device));
1891
1892 spin_lock_irqsave(&session->lock, flags);
1893 if (session->state == ISCSI_SESSION_FAILED)
1894 ret = BLK_EH_RESET_TIMER;
1895 spin_unlock_irqrestore(&session->lock, flags);
1896
1897 return ret;
1898 }
1899
qla4xxx_set_port_speed(struct Scsi_Host *shost)1900 static void qla4xxx_set_port_speed(struct Scsi_Host *shost)
1901 {
1902 struct scsi_qla_host *ha = to_qla_host(shost);
1903 struct iscsi_cls_host *ihost = shost->shost_data;
1904 uint32_t speed = ISCSI_PORT_SPEED_UNKNOWN;
1905
1906 qla4xxx_get_firmware_state(ha);
1907
1908 switch (ha->addl_fw_state & 0x0F00) {
1909 case FW_ADDSTATE_LINK_SPEED_10MBPS:
1910 speed = ISCSI_PORT_SPEED_10MBPS;
1911 break;
1912 case FW_ADDSTATE_LINK_SPEED_100MBPS:
1913 speed = ISCSI_PORT_SPEED_100MBPS;
1914 break;
1915 case FW_ADDSTATE_LINK_SPEED_1GBPS:
1916 speed = ISCSI_PORT_SPEED_1GBPS;
1917 break;
1918 case FW_ADDSTATE_LINK_SPEED_10GBPS:
1919 speed = ISCSI_PORT_SPEED_10GBPS;
1920 break;
1921 }
1922 ihost->port_speed = speed;
1923 }
1924
qla4xxx_set_port_state(struct Scsi_Host *shost)1925 static void qla4xxx_set_port_state(struct Scsi_Host *shost)
1926 {
1927 struct scsi_qla_host *ha = to_qla_host(shost);
1928 struct iscsi_cls_host *ihost = shost->shost_data;
1929 uint32_t state = ISCSI_PORT_STATE_DOWN;
1930
1931 if (test_bit(AF_LINK_UP, &ha->flags))
1932 state = ISCSI_PORT_STATE_UP;
1933
1934 ihost->port_state = state;
1935 }
1936
qla4xxx_host_get_param(struct Scsi_Host *shost, enum iscsi_host_param param, char *buf)1937 static int qla4xxx_host_get_param(struct Scsi_Host *shost,
1938 enum iscsi_host_param param, char *buf)
1939 {
1940 struct scsi_qla_host *ha = to_qla_host(shost);
1941 int len;
1942
1943 switch (param) {
1944 case ISCSI_HOST_PARAM_HWADDRESS:
1945 len = sysfs_format_mac(buf, ha->my_mac, MAC_ADDR_LEN);
1946 break;
1947 case ISCSI_HOST_PARAM_IPADDRESS:
1948 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address);
1949 break;
1950 case ISCSI_HOST_PARAM_INITIATOR_NAME:
1951 len = sprintf(buf, "%s\n", ha->name_string);
1952 break;
1953 case ISCSI_HOST_PARAM_PORT_STATE:
1954 qla4xxx_set_port_state(shost);
1955 len = sprintf(buf, "%s\n", iscsi_get_port_state_name(shost));
1956 break;
1957 case ISCSI_HOST_PARAM_PORT_SPEED:
1958 qla4xxx_set_port_speed(shost);
1959 len = sprintf(buf, "%s\n", iscsi_get_port_speed_name(shost));
1960 break;
1961 default:
1962 return -ENOSYS;
1963 }
1964
1965 return len;
1966 }
1967
qla4xxx_create_ipv4_iface(struct scsi_qla_host *ha)1968 static void qla4xxx_create_ipv4_iface(struct scsi_qla_host *ha)
1969 {
1970 if (ha->iface_ipv4)
1971 return;
1972
1973 /* IPv4 */
1974 ha->iface_ipv4 = iscsi_create_iface(ha->host,
1975 &qla4xxx_iscsi_transport,
1976 ISCSI_IFACE_TYPE_IPV4, 0, 0);
1977 if (!ha->iface_ipv4)
1978 ql4_printk(KERN_ERR, ha, "Could not create IPv4 iSCSI "
1979 "iface0.\n");
1980 }
1981
qla4xxx_create_ipv6_iface(struct scsi_qla_host *ha)1982 static void qla4xxx_create_ipv6_iface(struct scsi_qla_host *ha)
1983 {
1984 if (!ha->iface_ipv6_0)
1985 /* IPv6 iface-0 */
1986 ha->iface_ipv6_0 = iscsi_create_iface(ha->host,
1987 &qla4xxx_iscsi_transport,
1988 ISCSI_IFACE_TYPE_IPV6, 0,
1989 0);
1990 if (!ha->iface_ipv6_0)
1991 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI "
1992 "iface0.\n");
1993
1994 if (!ha->iface_ipv6_1)
1995 /* IPv6 iface-1 */
1996 ha->iface_ipv6_1 = iscsi_create_iface(ha->host,
1997 &qla4xxx_iscsi_transport,
1998 ISCSI_IFACE_TYPE_IPV6, 1,
1999 0);
2000 if (!ha->iface_ipv6_1)
2001 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI "
2002 "iface1.\n");
2003 }
2004
qla4xxx_create_ifaces(struct scsi_qla_host *ha)2005 static void qla4xxx_create_ifaces(struct scsi_qla_host *ha)
2006 {
2007 if (ha->ip_config.ipv4_options & IPOPT_IPV4_PROTOCOL_ENABLE)
2008 qla4xxx_create_ipv4_iface(ha);
2009
2010 if (ha->ip_config.ipv6_options & IPV6_OPT_IPV6_PROTOCOL_ENABLE)
2011 qla4xxx_create_ipv6_iface(ha);
2012 }
2013
qla4xxx_destroy_ipv4_iface(struct scsi_qla_host *ha)2014 static void qla4xxx_destroy_ipv4_iface(struct scsi_qla_host *ha)
2015 {
2016 if (ha->iface_ipv4) {
2017 iscsi_destroy_iface(ha->iface_ipv4);
2018 ha->iface_ipv4 = NULL;
2019 }
2020 }
2021
qla4xxx_destroy_ipv6_iface(struct scsi_qla_host *ha)2022 static void qla4xxx_destroy_ipv6_iface(struct scsi_qla_host *ha)
2023 {
2024 if (ha->iface_ipv6_0) {
2025 iscsi_destroy_iface(ha->iface_ipv6_0);
2026 ha->iface_ipv6_0 = NULL;
2027 }
2028 if (ha->iface_ipv6_1) {
2029 iscsi_destroy_iface(ha->iface_ipv6_1);
2030 ha->iface_ipv6_1 = NULL;
2031 }
2032 }
2033
qla4xxx_destroy_ifaces(struct scsi_qla_host *ha)2034 static void qla4xxx_destroy_ifaces(struct scsi_qla_host *ha)
2035 {
2036 qla4xxx_destroy_ipv4_iface(ha);
2037 qla4xxx_destroy_ipv6_iface(ha);
2038 }
2039
qla4xxx_set_ipv6(struct scsi_qla_host *ha, struct iscsi_iface_param_info *iface_param, struct addr_ctrl_blk *init_fw_cb)2040 static void qla4xxx_set_ipv6(struct scsi_qla_host *ha,
2041 struct iscsi_iface_param_info *iface_param,
2042 struct addr_ctrl_blk *init_fw_cb)
2043 {
2044 /*
2045 * iface_num 0 is valid for IPv6 Addr, linklocal, router, autocfg.
2046 * iface_num 1 is valid only for IPv6 Addr.
2047 */
2048 switch (iface_param->param) {
2049 case ISCSI_NET_PARAM_IPV6_ADDR:
2050 if (iface_param->iface_num & 0x1)
2051 /* IPv6 Addr 1 */
2052 memcpy(init_fw_cb->ipv6_addr1, iface_param->value,
2053 sizeof(init_fw_cb->ipv6_addr1));
2054 else
2055 /* IPv6 Addr 0 */
2056 memcpy(init_fw_cb->ipv6_addr0, iface_param->value,
2057 sizeof(init_fw_cb->ipv6_addr0));
2058 break;
2059 case ISCSI_NET_PARAM_IPV6_LINKLOCAL:
2060 if (iface_param->iface_num & 0x1)
2061 break;
2062 memcpy(init_fw_cb->ipv6_if_id, &iface_param->value[8],
2063 sizeof(init_fw_cb->ipv6_if_id));
2064 break;
2065 case ISCSI_NET_PARAM_IPV6_ROUTER:
2066 if (iface_param->iface_num & 0x1)
2067 break;
2068 memcpy(init_fw_cb->ipv6_dflt_rtr_addr, iface_param->value,
2069 sizeof(init_fw_cb->ipv6_dflt_rtr_addr));
2070 break;
2071 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG:
2072 /* Autocfg applies to even interface */
2073 if (iface_param->iface_num & 0x1)
2074 break;
2075
2076 if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_DISABLE)
2077 init_fw_cb->ipv6_addtl_opts &=
2078 cpu_to_le16(
2079 ~IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE);
2080 else if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_ND_ENABLE)
2081 init_fw_cb->ipv6_addtl_opts |=
2082 cpu_to_le16(
2083 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE);
2084 else
2085 ql4_printk(KERN_ERR, ha,
2086 "Invalid autocfg setting for IPv6 addr\n");
2087 break;
2088 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG:
2089 /* Autocfg applies to even interface */
2090 if (iface_param->iface_num & 0x1)
2091 break;
2092
2093 if (iface_param->value[0] ==
2094 ISCSI_IPV6_LINKLOCAL_AUTOCFG_ENABLE)
2095 init_fw_cb->ipv6_addtl_opts |= cpu_to_le16(
2096 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR);
2097 else if (iface_param->value[0] ==
2098 ISCSI_IPV6_LINKLOCAL_AUTOCFG_DISABLE)
2099 init_fw_cb->ipv6_addtl_opts &= cpu_to_le16(
2100 ~IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR);
2101 else
2102 ql4_printk(KERN_ERR, ha,
2103 "Invalid autocfg setting for IPv6 linklocal addr\n");
2104 break;
2105 case ISCSI_NET_PARAM_IPV6_ROUTER_AUTOCFG:
2106 /* Autocfg applies to even interface */
2107 if (iface_param->iface_num & 0x1)
2108 break;
2109
2110 if (iface_param->value[0] == ISCSI_IPV6_ROUTER_AUTOCFG_ENABLE)
2111 memset(init_fw_cb->ipv6_dflt_rtr_addr, 0,
2112 sizeof(init_fw_cb->ipv6_dflt_rtr_addr));
2113 break;
2114 case ISCSI_NET_PARAM_IFACE_ENABLE:
2115 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) {
2116 init_fw_cb->ipv6_opts |=
2117 cpu_to_le16(IPV6_OPT_IPV6_PROTOCOL_ENABLE);
2118 qla4xxx_create_ipv6_iface(ha);
2119 } else {
2120 init_fw_cb->ipv6_opts &=
2121 cpu_to_le16(~IPV6_OPT_IPV6_PROTOCOL_ENABLE &
2122 0xFFFF);
2123 qla4xxx_destroy_ipv6_iface(ha);
2124 }
2125 break;
2126 case ISCSI_NET_PARAM_VLAN_TAG:
2127 if (iface_param->len != sizeof(init_fw_cb->ipv6_vlan_tag))
2128 break;
2129 init_fw_cb->ipv6_vlan_tag =
2130 cpu_to_be16(*(uint16_t *)iface_param->value);
2131 break;
2132 case ISCSI_NET_PARAM_VLAN_ENABLED:
2133 if (iface_param->value[0] == ISCSI_VLAN_ENABLE)
2134 init_fw_cb->ipv6_opts |=
2135 cpu_to_le16(IPV6_OPT_VLAN_TAGGING_ENABLE);
2136 else
2137 init_fw_cb->ipv6_opts &=
2138 cpu_to_le16(~IPV6_OPT_VLAN_TAGGING_ENABLE);
2139 break;
2140 case ISCSI_NET_PARAM_MTU:
2141 init_fw_cb->eth_mtu_size =
2142 cpu_to_le16(*(uint16_t *)iface_param->value);
2143 break;
2144 case ISCSI_NET_PARAM_PORT:
2145 /* Autocfg applies to even interface */
2146 if (iface_param->iface_num & 0x1)
2147 break;
2148
2149 init_fw_cb->ipv6_port =
2150 cpu_to_le16(*(uint16_t *)iface_param->value);
2151 break;
2152 case ISCSI_NET_PARAM_DELAYED_ACK_EN:
2153 if (iface_param->iface_num & 0x1)
2154 break;
2155 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2156 init_fw_cb->ipv6_tcp_opts |=
2157 cpu_to_le16(IPV6_TCPOPT_DELAYED_ACK_DISABLE);
2158 else
2159 init_fw_cb->ipv6_tcp_opts &=
2160 cpu_to_le16(~IPV6_TCPOPT_DELAYED_ACK_DISABLE &
2161 0xFFFF);
2162 break;
2163 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE:
2164 if (iface_param->iface_num & 0x1)
2165 break;
2166 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2167 init_fw_cb->ipv6_tcp_opts |=
2168 cpu_to_le16(IPV6_TCPOPT_NAGLE_ALGO_DISABLE);
2169 else
2170 init_fw_cb->ipv6_tcp_opts &=
2171 cpu_to_le16(~IPV6_TCPOPT_NAGLE_ALGO_DISABLE);
2172 break;
2173 case ISCSI_NET_PARAM_TCP_WSF_DISABLE:
2174 if (iface_param->iface_num & 0x1)
2175 break;
2176 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2177 init_fw_cb->ipv6_tcp_opts |=
2178 cpu_to_le16(IPV6_TCPOPT_WINDOW_SCALE_DISABLE);
2179 else
2180 init_fw_cb->ipv6_tcp_opts &=
2181 cpu_to_le16(~IPV6_TCPOPT_WINDOW_SCALE_DISABLE);
2182 break;
2183 case ISCSI_NET_PARAM_TCP_WSF:
2184 if (iface_param->iface_num & 0x1)
2185 break;
2186 init_fw_cb->ipv6_tcp_wsf = iface_param->value[0];
2187 break;
2188 case ISCSI_NET_PARAM_TCP_TIMER_SCALE:
2189 if (iface_param->iface_num & 0x1)
2190 break;
2191 init_fw_cb->ipv6_tcp_opts &=
2192 cpu_to_le16(~IPV6_TCPOPT_TIMER_SCALE);
2193 init_fw_cb->ipv6_tcp_opts |=
2194 cpu_to_le16((iface_param->value[0] << 1) &
2195 IPV6_TCPOPT_TIMER_SCALE);
2196 break;
2197 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN:
2198 if (iface_param->iface_num & 0x1)
2199 break;
2200 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2201 init_fw_cb->ipv6_tcp_opts |=
2202 cpu_to_le16(IPV6_TCPOPT_TIMESTAMP_EN);
2203 else
2204 init_fw_cb->ipv6_tcp_opts &=
2205 cpu_to_le16(~IPV6_TCPOPT_TIMESTAMP_EN);
2206 break;
2207 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN:
2208 if (iface_param->iface_num & 0x1)
2209 break;
2210 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2211 init_fw_cb->ipv6_opts |=
2212 cpu_to_le16(IPV6_OPT_GRAT_NEIGHBOR_ADV_EN);
2213 else
2214 init_fw_cb->ipv6_opts &=
2215 cpu_to_le16(~IPV6_OPT_GRAT_NEIGHBOR_ADV_EN);
2216 break;
2217 case ISCSI_NET_PARAM_REDIRECT_EN:
2218 if (iface_param->iface_num & 0x1)
2219 break;
2220 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2221 init_fw_cb->ipv6_opts |=
2222 cpu_to_le16(IPV6_OPT_REDIRECT_EN);
2223 else
2224 init_fw_cb->ipv6_opts &=
2225 cpu_to_le16(~IPV6_OPT_REDIRECT_EN);
2226 break;
2227 case ISCSI_NET_PARAM_IPV6_MLD_EN:
2228 if (iface_param->iface_num & 0x1)
2229 break;
2230 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2231 init_fw_cb->ipv6_addtl_opts |=
2232 cpu_to_le16(IPV6_ADDOPT_MLD_EN);
2233 else
2234 init_fw_cb->ipv6_addtl_opts &=
2235 cpu_to_le16(~IPV6_ADDOPT_MLD_EN);
2236 break;
2237 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL:
2238 if (iface_param->iface_num & 0x1)
2239 break;
2240 init_fw_cb->ipv6_flow_lbl =
2241 cpu_to_le16(*(uint16_t *)iface_param->value);
2242 break;
2243 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS:
2244 if (iface_param->iface_num & 0x1)
2245 break;
2246 init_fw_cb->ipv6_traffic_class = iface_param->value[0];
2247 break;
2248 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT:
2249 if (iface_param->iface_num & 0x1)
2250 break;
2251 init_fw_cb->ipv6_hop_limit = iface_param->value[0];
2252 break;
2253 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO:
2254 if (iface_param->iface_num & 0x1)
2255 break;
2256 init_fw_cb->ipv6_nd_reach_time =
2257 cpu_to_le32(*(uint32_t *)iface_param->value);
2258 break;
2259 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME:
2260 if (iface_param->iface_num & 0x1)
2261 break;
2262 init_fw_cb->ipv6_nd_rexmit_timer =
2263 cpu_to_le32(*(uint32_t *)iface_param->value);
2264 break;
2265 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO:
2266 if (iface_param->iface_num & 0x1)
2267 break;
2268 init_fw_cb->ipv6_nd_stale_timeout =
2269 cpu_to_le32(*(uint32_t *)iface_param->value);
2270 break;
2271 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT:
2272 if (iface_param->iface_num & 0x1)
2273 break;
2274 init_fw_cb->ipv6_dup_addr_detect_count = iface_param->value[0];
2275 break;
2276 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU:
2277 if (iface_param->iface_num & 0x1)
2278 break;
2279 init_fw_cb->ipv6_gw_advrt_mtu =
2280 cpu_to_le32(*(uint32_t *)iface_param->value);
2281 break;
2282 default:
2283 ql4_printk(KERN_ERR, ha, "Unknown IPv6 param = %d\n",
2284 iface_param->param);
2285 break;
2286 }
2287 }
2288
qla4xxx_set_ipv4(struct scsi_qla_host *ha, struct iscsi_iface_param_info *iface_param, struct addr_ctrl_blk *init_fw_cb)2289 static void qla4xxx_set_ipv4(struct scsi_qla_host *ha,
2290 struct iscsi_iface_param_info *iface_param,
2291 struct addr_ctrl_blk *init_fw_cb)
2292 {
2293 switch (iface_param->param) {
2294 case ISCSI_NET_PARAM_IPV4_ADDR:
2295 memcpy(init_fw_cb->ipv4_addr, iface_param->value,
2296 sizeof(init_fw_cb->ipv4_addr));
2297 break;
2298 case ISCSI_NET_PARAM_IPV4_SUBNET:
2299 memcpy(init_fw_cb->ipv4_subnet, iface_param->value,
2300 sizeof(init_fw_cb->ipv4_subnet));
2301 break;
2302 case ISCSI_NET_PARAM_IPV4_GW:
2303 memcpy(init_fw_cb->ipv4_gw_addr, iface_param->value,
2304 sizeof(init_fw_cb->ipv4_gw_addr));
2305 break;
2306 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
2307 if (iface_param->value[0] == ISCSI_BOOTPROTO_DHCP)
2308 init_fw_cb->ipv4_tcp_opts |=
2309 cpu_to_le16(TCPOPT_DHCP_ENABLE);
2310 else if (iface_param->value[0] == ISCSI_BOOTPROTO_STATIC)
2311 init_fw_cb->ipv4_tcp_opts &=
2312 cpu_to_le16(~TCPOPT_DHCP_ENABLE);
2313 else
2314 ql4_printk(KERN_ERR, ha, "Invalid IPv4 bootproto\n");
2315 break;
2316 case ISCSI_NET_PARAM_IFACE_ENABLE:
2317 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) {
2318 init_fw_cb->ipv4_ip_opts |=
2319 cpu_to_le16(IPOPT_IPV4_PROTOCOL_ENABLE);
2320 qla4xxx_create_ipv4_iface(ha);
2321 } else {
2322 init_fw_cb->ipv4_ip_opts &=
2323 cpu_to_le16(~IPOPT_IPV4_PROTOCOL_ENABLE &
2324 0xFFFF);
2325 qla4xxx_destroy_ipv4_iface(ha);
2326 }
2327 break;
2328 case ISCSI_NET_PARAM_VLAN_TAG:
2329 if (iface_param->len != sizeof(init_fw_cb->ipv4_vlan_tag))
2330 break;
2331 init_fw_cb->ipv4_vlan_tag =
2332 cpu_to_be16(*(uint16_t *)iface_param->value);
2333 break;
2334 case ISCSI_NET_PARAM_VLAN_ENABLED:
2335 if (iface_param->value[0] == ISCSI_VLAN_ENABLE)
2336 init_fw_cb->ipv4_ip_opts |=
2337 cpu_to_le16(IPOPT_VLAN_TAGGING_ENABLE);
2338 else
2339 init_fw_cb->ipv4_ip_opts &=
2340 cpu_to_le16(~IPOPT_VLAN_TAGGING_ENABLE);
2341 break;
2342 case ISCSI_NET_PARAM_MTU:
2343 init_fw_cb->eth_mtu_size =
2344 cpu_to_le16(*(uint16_t *)iface_param->value);
2345 break;
2346 case ISCSI_NET_PARAM_PORT:
2347 init_fw_cb->ipv4_port =
2348 cpu_to_le16(*(uint16_t *)iface_param->value);
2349 break;
2350 case ISCSI_NET_PARAM_DELAYED_ACK_EN:
2351 if (iface_param->iface_num & 0x1)
2352 break;
2353 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2354 init_fw_cb->ipv4_tcp_opts |=
2355 cpu_to_le16(TCPOPT_DELAYED_ACK_DISABLE);
2356 else
2357 init_fw_cb->ipv4_tcp_opts &=
2358 cpu_to_le16(~TCPOPT_DELAYED_ACK_DISABLE &
2359 0xFFFF);
2360 break;
2361 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE:
2362 if (iface_param->iface_num & 0x1)
2363 break;
2364 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2365 init_fw_cb->ipv4_tcp_opts |=
2366 cpu_to_le16(TCPOPT_NAGLE_ALGO_DISABLE);
2367 else
2368 init_fw_cb->ipv4_tcp_opts &=
2369 cpu_to_le16(~TCPOPT_NAGLE_ALGO_DISABLE);
2370 break;
2371 case ISCSI_NET_PARAM_TCP_WSF_DISABLE:
2372 if (iface_param->iface_num & 0x1)
2373 break;
2374 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2375 init_fw_cb->ipv4_tcp_opts |=
2376 cpu_to_le16(TCPOPT_WINDOW_SCALE_DISABLE);
2377 else
2378 init_fw_cb->ipv4_tcp_opts &=
2379 cpu_to_le16(~TCPOPT_WINDOW_SCALE_DISABLE);
2380 break;
2381 case ISCSI_NET_PARAM_TCP_WSF:
2382 if (iface_param->iface_num & 0x1)
2383 break;
2384 init_fw_cb->ipv4_tcp_wsf = iface_param->value[0];
2385 break;
2386 case ISCSI_NET_PARAM_TCP_TIMER_SCALE:
2387 if (iface_param->iface_num & 0x1)
2388 break;
2389 init_fw_cb->ipv4_tcp_opts &= cpu_to_le16(~TCPOPT_TIMER_SCALE);
2390 init_fw_cb->ipv4_tcp_opts |=
2391 cpu_to_le16((iface_param->value[0] << 1) &
2392 TCPOPT_TIMER_SCALE);
2393 break;
2394 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN:
2395 if (iface_param->iface_num & 0x1)
2396 break;
2397 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2398 init_fw_cb->ipv4_tcp_opts |=
2399 cpu_to_le16(TCPOPT_TIMESTAMP_ENABLE);
2400 else
2401 init_fw_cb->ipv4_tcp_opts &=
2402 cpu_to_le16(~TCPOPT_TIMESTAMP_ENABLE);
2403 break;
2404 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN:
2405 if (iface_param->iface_num & 0x1)
2406 break;
2407 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2408 init_fw_cb->ipv4_tcp_opts |=
2409 cpu_to_le16(TCPOPT_DNS_SERVER_IP_EN);
2410 else
2411 init_fw_cb->ipv4_tcp_opts &=
2412 cpu_to_le16(~TCPOPT_DNS_SERVER_IP_EN);
2413 break;
2414 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN:
2415 if (iface_param->iface_num & 0x1)
2416 break;
2417 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2418 init_fw_cb->ipv4_tcp_opts |=
2419 cpu_to_le16(TCPOPT_SLP_DA_INFO_EN);
2420 else
2421 init_fw_cb->ipv4_tcp_opts &=
2422 cpu_to_le16(~TCPOPT_SLP_DA_INFO_EN);
2423 break;
2424 case ISCSI_NET_PARAM_IPV4_TOS_EN:
2425 if (iface_param->iface_num & 0x1)
2426 break;
2427 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2428 init_fw_cb->ipv4_ip_opts |=
2429 cpu_to_le16(IPOPT_IPV4_TOS_EN);
2430 else
2431 init_fw_cb->ipv4_ip_opts &=
2432 cpu_to_le16(~IPOPT_IPV4_TOS_EN);
2433 break;
2434 case ISCSI_NET_PARAM_IPV4_TOS:
2435 if (iface_param->iface_num & 0x1)
2436 break;
2437 init_fw_cb->ipv4_tos = iface_param->value[0];
2438 break;
2439 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN:
2440 if (iface_param->iface_num & 0x1)
2441 break;
2442 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2443 init_fw_cb->ipv4_ip_opts |=
2444 cpu_to_le16(IPOPT_GRAT_ARP_EN);
2445 else
2446 init_fw_cb->ipv4_ip_opts &=
2447 cpu_to_le16(~IPOPT_GRAT_ARP_EN);
2448 break;
2449 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN:
2450 if (iface_param->iface_num & 0x1)
2451 break;
2452 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2453 init_fw_cb->ipv4_ip_opts |=
2454 cpu_to_le16(IPOPT_ALT_CID_EN);
2455 else
2456 init_fw_cb->ipv4_ip_opts &=
2457 cpu_to_le16(~IPOPT_ALT_CID_EN);
2458 break;
2459 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID:
2460 if (iface_param->iface_num & 0x1)
2461 break;
2462 memcpy(init_fw_cb->ipv4_dhcp_alt_cid, iface_param->value,
2463 (sizeof(init_fw_cb->ipv4_dhcp_alt_cid) - 1));
2464 init_fw_cb->ipv4_dhcp_alt_cid_len =
2465 strlen(init_fw_cb->ipv4_dhcp_alt_cid);
2466 break;
2467 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN:
2468 if (iface_param->iface_num & 0x1)
2469 break;
2470 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2471 init_fw_cb->ipv4_ip_opts |=
2472 cpu_to_le16(IPOPT_REQ_VID_EN);
2473 else
2474 init_fw_cb->ipv4_ip_opts &=
2475 cpu_to_le16(~IPOPT_REQ_VID_EN);
2476 break;
2477 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN:
2478 if (iface_param->iface_num & 0x1)
2479 break;
2480 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2481 init_fw_cb->ipv4_ip_opts |=
2482 cpu_to_le16(IPOPT_USE_VID_EN);
2483 else
2484 init_fw_cb->ipv4_ip_opts &=
2485 cpu_to_le16(~IPOPT_USE_VID_EN);
2486 break;
2487 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID:
2488 if (iface_param->iface_num & 0x1)
2489 break;
2490 memcpy(init_fw_cb->ipv4_dhcp_vid, iface_param->value,
2491 (sizeof(init_fw_cb->ipv4_dhcp_vid) - 1));
2492 init_fw_cb->ipv4_dhcp_vid_len =
2493 strlen(init_fw_cb->ipv4_dhcp_vid);
2494 break;
2495 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN:
2496 if (iface_param->iface_num & 0x1)
2497 break;
2498 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2499 init_fw_cb->ipv4_ip_opts |=
2500 cpu_to_le16(IPOPT_LEARN_IQN_EN);
2501 else
2502 init_fw_cb->ipv4_ip_opts &=
2503 cpu_to_le16(~IPOPT_LEARN_IQN_EN);
2504 break;
2505 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE:
2506 if (iface_param->iface_num & 0x1)
2507 break;
2508 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2509 init_fw_cb->ipv4_ip_opts |=
2510 cpu_to_le16(IPOPT_FRAGMENTATION_DISABLE);
2511 else
2512 init_fw_cb->ipv4_ip_opts &=
2513 cpu_to_le16(~IPOPT_FRAGMENTATION_DISABLE);
2514 break;
2515 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN:
2516 if (iface_param->iface_num & 0x1)
2517 break;
2518 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2519 init_fw_cb->ipv4_ip_opts |=
2520 cpu_to_le16(IPOPT_IN_FORWARD_EN);
2521 else
2522 init_fw_cb->ipv4_ip_opts &=
2523 cpu_to_le16(~IPOPT_IN_FORWARD_EN);
2524 break;
2525 case ISCSI_NET_PARAM_REDIRECT_EN:
2526 if (iface_param->iface_num & 0x1)
2527 break;
2528 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2529 init_fw_cb->ipv4_ip_opts |=
2530 cpu_to_le16(IPOPT_ARP_REDIRECT_EN);
2531 else
2532 init_fw_cb->ipv4_ip_opts &=
2533 cpu_to_le16(~IPOPT_ARP_REDIRECT_EN);
2534 break;
2535 case ISCSI_NET_PARAM_IPV4_TTL:
2536 if (iface_param->iface_num & 0x1)
2537 break;
2538 init_fw_cb->ipv4_ttl = iface_param->value[0];
2539 break;
2540 default:
2541 ql4_printk(KERN_ERR, ha, "Unknown IPv4 param = %d\n",
2542 iface_param->param);
2543 break;
2544 }
2545 }
2546
qla4xxx_set_iscsi_param(struct scsi_qla_host *ha, struct iscsi_iface_param_info *iface_param, struct addr_ctrl_blk *init_fw_cb)2547 static void qla4xxx_set_iscsi_param(struct scsi_qla_host *ha,
2548 struct iscsi_iface_param_info *iface_param,
2549 struct addr_ctrl_blk *init_fw_cb)
2550 {
2551 switch (iface_param->param) {
2552 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO:
2553 if (iface_param->iface_num & 0x1)
2554 break;
2555 init_fw_cb->def_timeout =
2556 cpu_to_le16(*(uint16_t *)iface_param->value);
2557 break;
2558 case ISCSI_IFACE_PARAM_HDRDGST_EN:
2559 if (iface_param->iface_num & 0x1)
2560 break;
2561 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2562 init_fw_cb->iscsi_opts |=
2563 cpu_to_le16(ISCSIOPTS_HEADER_DIGEST_EN);
2564 else
2565 init_fw_cb->iscsi_opts &=
2566 cpu_to_le16(~ISCSIOPTS_HEADER_DIGEST_EN);
2567 break;
2568 case ISCSI_IFACE_PARAM_DATADGST_EN:
2569 if (iface_param->iface_num & 0x1)
2570 break;
2571 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2572 init_fw_cb->iscsi_opts |=
2573 cpu_to_le16(ISCSIOPTS_DATA_DIGEST_EN);
2574 else
2575 init_fw_cb->iscsi_opts &=
2576 cpu_to_le16(~ISCSIOPTS_DATA_DIGEST_EN);
2577 break;
2578 case ISCSI_IFACE_PARAM_IMM_DATA_EN:
2579 if (iface_param->iface_num & 0x1)
2580 break;
2581 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2582 init_fw_cb->iscsi_opts |=
2583 cpu_to_le16(ISCSIOPTS_IMMEDIATE_DATA_EN);
2584 else
2585 init_fw_cb->iscsi_opts &=
2586 cpu_to_le16(~ISCSIOPTS_IMMEDIATE_DATA_EN);
2587 break;
2588 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN:
2589 if (iface_param->iface_num & 0x1)
2590 break;
2591 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2592 init_fw_cb->iscsi_opts |=
2593 cpu_to_le16(ISCSIOPTS_INITIAL_R2T_EN);
2594 else
2595 init_fw_cb->iscsi_opts &=
2596 cpu_to_le16(~ISCSIOPTS_INITIAL_R2T_EN);
2597 break;
2598 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN:
2599 if (iface_param->iface_num & 0x1)
2600 break;
2601 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2602 init_fw_cb->iscsi_opts |=
2603 cpu_to_le16(ISCSIOPTS_DATA_SEQ_INORDER_EN);
2604 else
2605 init_fw_cb->iscsi_opts &=
2606 cpu_to_le16(~ISCSIOPTS_DATA_SEQ_INORDER_EN);
2607 break;
2608 case ISCSI_IFACE_PARAM_PDU_INORDER_EN:
2609 if (iface_param->iface_num & 0x1)
2610 break;
2611 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2612 init_fw_cb->iscsi_opts |=
2613 cpu_to_le16(ISCSIOPTS_DATA_PDU_INORDER_EN);
2614 else
2615 init_fw_cb->iscsi_opts &=
2616 cpu_to_le16(~ISCSIOPTS_DATA_PDU_INORDER_EN);
2617 break;
2618 case ISCSI_IFACE_PARAM_ERL:
2619 if (iface_param->iface_num & 0x1)
2620 break;
2621 init_fw_cb->iscsi_opts &= cpu_to_le16(~ISCSIOPTS_ERL);
2622 init_fw_cb->iscsi_opts |= cpu_to_le16(iface_param->value[0] &
2623 ISCSIOPTS_ERL);
2624 break;
2625 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH:
2626 if (iface_param->iface_num & 0x1)
2627 break;
2628 init_fw_cb->iscsi_max_pdu_size =
2629 cpu_to_le32(*(uint32_t *)iface_param->value) /
2630 BYTE_UNITS;
2631 break;
2632 case ISCSI_IFACE_PARAM_FIRST_BURST:
2633 if (iface_param->iface_num & 0x1)
2634 break;
2635 init_fw_cb->iscsi_fburst_len =
2636 cpu_to_le32(*(uint32_t *)iface_param->value) /
2637 BYTE_UNITS;
2638 break;
2639 case ISCSI_IFACE_PARAM_MAX_R2T:
2640 if (iface_param->iface_num & 0x1)
2641 break;
2642 init_fw_cb->iscsi_max_outstnd_r2t =
2643 cpu_to_le16(*(uint16_t *)iface_param->value);
2644 break;
2645 case ISCSI_IFACE_PARAM_MAX_BURST:
2646 if (iface_param->iface_num & 0x1)
2647 break;
2648 init_fw_cb->iscsi_max_burst_len =
2649 cpu_to_le32(*(uint32_t *)iface_param->value) /
2650 BYTE_UNITS;
2651 break;
2652 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN:
2653 if (iface_param->iface_num & 0x1)
2654 break;
2655 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2656 init_fw_cb->iscsi_opts |=
2657 cpu_to_le16(ISCSIOPTS_CHAP_AUTH_EN);
2658 else
2659 init_fw_cb->iscsi_opts &=
2660 cpu_to_le16(~ISCSIOPTS_CHAP_AUTH_EN);
2661 break;
2662 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN:
2663 if (iface_param->iface_num & 0x1)
2664 break;
2665 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2666 init_fw_cb->iscsi_opts |=
2667 cpu_to_le16(ISCSIOPTS_BIDI_CHAP_EN);
2668 else
2669 init_fw_cb->iscsi_opts &=
2670 cpu_to_le16(~ISCSIOPTS_BIDI_CHAP_EN);
2671 break;
2672 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL:
2673 if (iface_param->iface_num & 0x1)
2674 break;
2675 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2676 init_fw_cb->iscsi_opts |=
2677 cpu_to_le16(ISCSIOPTS_DISCOVERY_AUTH_EN);
2678 else
2679 init_fw_cb->iscsi_opts &=
2680 cpu_to_le16(~ISCSIOPTS_DISCOVERY_AUTH_EN);
2681 break;
2682 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN:
2683 if (iface_param->iface_num & 0x1)
2684 break;
2685 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2686 init_fw_cb->iscsi_opts |=
2687 cpu_to_le16(ISCSIOPTS_DISCOVERY_LOGOUT_EN);
2688 else
2689 init_fw_cb->iscsi_opts &=
2690 cpu_to_le16(~ISCSIOPTS_DISCOVERY_LOGOUT_EN);
2691 break;
2692 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN:
2693 if (iface_param->iface_num & 0x1)
2694 break;
2695 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2696 init_fw_cb->iscsi_opts |=
2697 cpu_to_le16(ISCSIOPTS_STRICT_LOGIN_COMP_EN);
2698 else
2699 init_fw_cb->iscsi_opts &=
2700 cpu_to_le16(~ISCSIOPTS_STRICT_LOGIN_COMP_EN);
2701 break;
2702 default:
2703 ql4_printk(KERN_ERR, ha, "Unknown iscsi param = %d\n",
2704 iface_param->param);
2705 break;
2706 }
2707 }
2708
2709 static void
qla4xxx_initcb_to_acb(struct addr_ctrl_blk *init_fw_cb)2710 qla4xxx_initcb_to_acb(struct addr_ctrl_blk *init_fw_cb)
2711 {
2712 struct addr_ctrl_blk_def *acb;
2713 acb = (struct addr_ctrl_blk_def *)init_fw_cb;
2714 memset(acb->reserved1, 0, sizeof(acb->reserved1));
2715 memset(acb->reserved2, 0, sizeof(acb->reserved2));
2716 memset(acb->reserved3, 0, sizeof(acb->reserved3));
2717 memset(acb->reserved4, 0, sizeof(acb->reserved4));
2718 memset(acb->reserved5, 0, sizeof(acb->reserved5));
2719 memset(acb->reserved6, 0, sizeof(acb->reserved6));
2720 memset(acb->reserved7, 0, sizeof(acb->reserved7));
2721 memset(acb->reserved8, 0, sizeof(acb->reserved8));
2722 memset(acb->reserved9, 0, sizeof(acb->reserved9));
2723 memset(acb->reserved10, 0, sizeof(acb->reserved10));
2724 memset(acb->reserved11, 0, sizeof(acb->reserved11));
2725 memset(acb->reserved12, 0, sizeof(acb->reserved12));
2726 memset(acb->reserved13, 0, sizeof(acb->reserved13));
2727 memset(acb->reserved14, 0, sizeof(acb->reserved14));
2728 memset(acb->reserved15, 0, sizeof(acb->reserved15));
2729 }
2730
2731 static int
qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data, uint32_t len)2732 qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data, uint32_t len)
2733 {
2734 struct scsi_qla_host *ha = to_qla_host(shost);
2735 int rval = 0;
2736 struct iscsi_iface_param_info *iface_param = NULL;
2737 struct addr_ctrl_blk *init_fw_cb = NULL;
2738 dma_addr_t init_fw_cb_dma;
2739 uint32_t mbox_cmd[MBOX_REG_COUNT];
2740 uint32_t mbox_sts[MBOX_REG_COUNT];
2741 uint32_t rem = len;
2742 struct nlattr *attr;
2743
2744 init_fw_cb = dma_alloc_coherent(&ha->pdev->dev,
2745 sizeof(struct addr_ctrl_blk),
2746 &init_fw_cb_dma, GFP_KERNEL);
2747 if (!init_fw_cb) {
2748 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc init_cb\n",
2749 __func__);
2750 return -ENOMEM;
2751 }
2752
2753 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
2754 memset(&mbox_sts, 0, sizeof(mbox_sts));
2755
2756 if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma)) {
2757 ql4_printk(KERN_ERR, ha, "%s: get ifcb failed\n", __func__);
2758 rval = -EIO;
2759 goto exit_init_fw_cb;
2760 }
2761
2762 nla_for_each_attr(attr, data, len, rem) {
2763 if (nla_len(attr) < sizeof(*iface_param)) {
2764 rval = -EINVAL;
2765 goto exit_init_fw_cb;
2766 }
2767
2768 iface_param = nla_data(attr);
2769
2770 if (iface_param->param_type == ISCSI_NET_PARAM) {
2771 switch (iface_param->iface_type) {
2772 case ISCSI_IFACE_TYPE_IPV4:
2773 switch (iface_param->iface_num) {
2774 case 0:
2775 qla4xxx_set_ipv4(ha, iface_param,
2776 init_fw_cb);
2777 break;
2778 default:
2779 /* Cannot have more than one IPv4 interface */
2780 ql4_printk(KERN_ERR, ha,
2781 "Invalid IPv4 iface number = %d\n",
2782 iface_param->iface_num);
2783 break;
2784 }
2785 break;
2786 case ISCSI_IFACE_TYPE_IPV6:
2787 switch (iface_param->iface_num) {
2788 case 0:
2789 case 1:
2790 qla4xxx_set_ipv6(ha, iface_param,
2791 init_fw_cb);
2792 break;
2793 default:
2794 /* Cannot have more than two IPv6 interface */
2795 ql4_printk(KERN_ERR, ha,
2796 "Invalid IPv6 iface number = %d\n",
2797 iface_param->iface_num);
2798 break;
2799 }
2800 break;
2801 default:
2802 ql4_printk(KERN_ERR, ha,
2803 "Invalid iface type\n");
2804 break;
2805 }
2806 } else if (iface_param->param_type == ISCSI_IFACE_PARAM) {
2807 qla4xxx_set_iscsi_param(ha, iface_param,
2808 init_fw_cb);
2809 } else {
2810 continue;
2811 }
2812 }
2813
2814 init_fw_cb->cookie = cpu_to_le32(0x11BEAD5A);
2815
2816 rval = qla4xxx_set_flash(ha, init_fw_cb_dma, FLASH_SEGMENT_IFCB,
2817 sizeof(struct addr_ctrl_blk),
2818 FLASH_OPT_RMW_COMMIT);
2819 if (rval != QLA_SUCCESS) {
2820 ql4_printk(KERN_ERR, ha, "%s: set flash mbx failed\n",
2821 __func__);
2822 rval = -EIO;
2823 goto exit_init_fw_cb;
2824 }
2825
2826 rval = qla4xxx_disable_acb(ha);
2827 if (rval != QLA_SUCCESS) {
2828 ql4_printk(KERN_ERR, ha, "%s: disable acb mbx failed\n",
2829 __func__);
2830 rval = -EIO;
2831 goto exit_init_fw_cb;
2832 }
2833
2834 wait_for_completion_timeout(&ha->disable_acb_comp,
2835 DISABLE_ACB_TOV * HZ);
2836
2837 qla4xxx_initcb_to_acb(init_fw_cb);
2838
2839 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma);
2840 if (rval != QLA_SUCCESS) {
2841 ql4_printk(KERN_ERR, ha, "%s: set acb mbx failed\n",
2842 __func__);
2843 rval = -EIO;
2844 goto exit_init_fw_cb;
2845 }
2846
2847 memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk));
2848 qla4xxx_update_local_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb,
2849 init_fw_cb_dma);
2850
2851 exit_init_fw_cb:
2852 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk),
2853 init_fw_cb, init_fw_cb_dma);
2854
2855 return rval;
2856 }
2857
qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess, enum iscsi_param param, char *buf)2858 static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess,
2859 enum iscsi_param param, char *buf)
2860 {
2861 struct iscsi_session *sess = cls_sess->dd_data;
2862 struct ddb_entry *ddb_entry = sess->dd_data;
2863 struct scsi_qla_host *ha = ddb_entry->ha;
2864 struct iscsi_cls_conn *cls_conn = ddb_entry->conn;
2865 struct ql4_chap_table chap_tbl;
2866 int rval, len;
2867 uint16_t idx;
2868
2869 memset(&chap_tbl, 0, sizeof(chap_tbl));
2870 switch (param) {
2871 case ISCSI_PARAM_CHAP_IN_IDX:
2872 rval = qla4xxx_get_chap_index(ha, sess->username_in,
2873 sess->password_in, BIDI_CHAP,
2874 &idx);
2875 if (rval)
2876 len = sprintf(buf, "\n");
2877 else
2878 len = sprintf(buf, "%hu\n", idx);
2879 break;
2880 case ISCSI_PARAM_CHAP_OUT_IDX:
2881 if (ddb_entry->ddb_type == FLASH_DDB) {
2882 if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) {
2883 idx = ddb_entry->chap_tbl_idx;
2884 rval = QLA_SUCCESS;
2885 } else {
2886 rval = QLA_ERROR;
2887 }
2888 } else {
2889 rval = qla4xxx_get_chap_index(ha, sess->username,
2890 sess->password,
2891 LOCAL_CHAP, &idx);
2892 }
2893 if (rval)
2894 len = sprintf(buf, "\n");
2895 else
2896 len = sprintf(buf, "%hu\n", idx);
2897 break;
2898 case ISCSI_PARAM_USERNAME:
2899 case ISCSI_PARAM_PASSWORD:
2900 /* First, populate session username and password for FLASH DDB,
2901 * if not already done. This happens when session login fails
2902 * for a FLASH DDB.
2903 */
2904 if (ddb_entry->ddb_type == FLASH_DDB &&
2905 ddb_entry->chap_tbl_idx != INVALID_ENTRY &&
2906 !sess->username && !sess->password) {
2907 idx = ddb_entry->chap_tbl_idx;
2908 rval = qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name,
2909 chap_tbl.secret,
2910 idx);
2911 if (!rval) {
2912 iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME,
2913 (char *)chap_tbl.name,
2914 strlen((char *)chap_tbl.name));
2915 iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD,
2916 (char *)chap_tbl.secret,
2917 chap_tbl.secret_len);
2918 }
2919 }
2920 fallthrough;
2921 default:
2922 return iscsi_session_get_param(cls_sess, param, buf);
2923 }
2924
2925 return len;
2926 }
2927
qla4xxx_conn_get_param(struct iscsi_cls_conn *cls_conn, enum iscsi_param param, char *buf)2928 static int qla4xxx_conn_get_param(struct iscsi_cls_conn *cls_conn,
2929 enum iscsi_param param, char *buf)
2930 {
2931 struct iscsi_conn *conn;
2932 struct qla_conn *qla_conn;
2933 struct sockaddr *dst_addr;
2934
2935 conn = cls_conn->dd_data;
2936 qla_conn = conn->dd_data;
2937 dst_addr = (struct sockaddr *)&qla_conn->qla_ep->dst_addr;
2938
2939 switch (param) {
2940 case ISCSI_PARAM_CONN_PORT:
2941 case ISCSI_PARAM_CONN_ADDRESS:
2942 return iscsi_conn_get_addr_param((struct sockaddr_storage *)
2943 dst_addr, param, buf);
2944 default:
2945 return iscsi_conn_get_param(cls_conn, param, buf);
2946 }
2947 }
2948
qla4xxx_get_ddb_index(struct scsi_qla_host *ha, uint16_t *ddb_index)2949 int qla4xxx_get_ddb_index(struct scsi_qla_host *ha, uint16_t *ddb_index)
2950 {
2951 uint32_t mbx_sts = 0;
2952 uint16_t tmp_ddb_index;
2953 int ret;
2954
2955 get_ddb_index:
2956 tmp_ddb_index = find_first_zero_bit(ha->ddb_idx_map, MAX_DDB_ENTRIES);
2957
2958 if (tmp_ddb_index >= MAX_DDB_ENTRIES) {
2959 DEBUG2(ql4_printk(KERN_INFO, ha,
2960 "Free DDB index not available\n"));
2961 ret = QLA_ERROR;
2962 goto exit_get_ddb_index;
2963 }
2964
2965 if (test_and_set_bit(tmp_ddb_index, ha->ddb_idx_map))
2966 goto get_ddb_index;
2967
2968 DEBUG2(ql4_printk(KERN_INFO, ha,
2969 "Found a free DDB index at %d\n", tmp_ddb_index));
2970 ret = qla4xxx_req_ddb_entry(ha, tmp_ddb_index, &mbx_sts);
2971 if (ret == QLA_ERROR) {
2972 if (mbx_sts == MBOX_STS_COMMAND_ERROR) {
2973 ql4_printk(KERN_INFO, ha,
2974 "DDB index = %d not available trying next\n",
2975 tmp_ddb_index);
2976 goto get_ddb_index;
2977 }
2978 DEBUG2(ql4_printk(KERN_INFO, ha,
2979 "Free FW DDB not available\n"));
2980 }
2981
2982 *ddb_index = tmp_ddb_index;
2983
2984 exit_get_ddb_index:
2985 return ret;
2986 }
2987
qla4xxx_match_ipaddress(struct scsi_qla_host *ha, struct ddb_entry *ddb_entry, char *existing_ipaddr, char *user_ipaddr)2988 static int qla4xxx_match_ipaddress(struct scsi_qla_host *ha,
2989 struct ddb_entry *ddb_entry,
2990 char *existing_ipaddr,
2991 char *user_ipaddr)
2992 {
2993 uint8_t dst_ipaddr[IPv6_ADDR_LEN];
2994 char formatted_ipaddr[DDB_IPADDR_LEN];
2995 int status = QLA_SUCCESS, ret = 0;
2996
2997 if (ddb_entry->fw_ddb_entry.options & DDB_OPT_IPV6_DEVICE) {
2998 ret = in6_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr,
2999 '\0', NULL);
3000 if (ret == 0) {
3001 status = QLA_ERROR;
3002 goto out_match;
3003 }
3004 ret = sprintf(formatted_ipaddr, "%pI6", dst_ipaddr);
3005 } else {
3006 ret = in4_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr,
3007 '\0', NULL);
3008 if (ret == 0) {
3009 status = QLA_ERROR;
3010 goto out_match;
3011 }
3012 ret = sprintf(formatted_ipaddr, "%pI4", dst_ipaddr);
3013 }
3014
3015 if (strcmp(existing_ipaddr, formatted_ipaddr))
3016 status = QLA_ERROR;
3017
3018 out_match:
3019 return status;
3020 }
3021
qla4xxx_match_fwdb_session(struct scsi_qla_host *ha, struct iscsi_cls_conn *cls_conn)3022 static int qla4xxx_match_fwdb_session(struct scsi_qla_host *ha,
3023 struct iscsi_cls_conn *cls_conn)
3024 {
3025 int idx = 0, max_ddbs, rval;
3026 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
3027 struct iscsi_session *sess, *existing_sess;
3028 struct iscsi_conn *conn, *existing_conn;
3029 struct ddb_entry *ddb_entry;
3030
3031 sess = cls_sess->dd_data;
3032 conn = cls_conn->dd_data;
3033
3034 if (sess->targetname == NULL ||
3035 conn->persistent_address == NULL ||
3036 conn->persistent_port == 0)
3037 return QLA_ERROR;
3038
3039 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
3040 MAX_DEV_DB_ENTRIES;
3041
3042 for (idx = 0; idx < max_ddbs; idx++) {
3043 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
3044 if (ddb_entry == NULL)
3045 continue;
3046
3047 if (ddb_entry->ddb_type != FLASH_DDB)
3048 continue;
3049
3050 existing_sess = ddb_entry->sess->dd_data;
3051 existing_conn = ddb_entry->conn->dd_data;
3052
3053 if (existing_sess->targetname == NULL ||
3054 existing_conn->persistent_address == NULL ||
3055 existing_conn->persistent_port == 0)
3056 continue;
3057
3058 DEBUG2(ql4_printk(KERN_INFO, ha,
3059 "IQN = %s User IQN = %s\n",
3060 existing_sess->targetname,
3061 sess->targetname));
3062
3063 DEBUG2(ql4_printk(KERN_INFO, ha,
3064 "IP = %s User IP = %s\n",
3065 existing_conn->persistent_address,
3066 conn->persistent_address));
3067
3068 DEBUG2(ql4_printk(KERN_INFO, ha,
3069 "Port = %d User Port = %d\n",
3070 existing_conn->persistent_port,
3071 conn->persistent_port));
3072
3073 if (strcmp(existing_sess->targetname, sess->targetname))
3074 continue;
3075 rval = qla4xxx_match_ipaddress(ha, ddb_entry,
3076 existing_conn->persistent_address,
3077 conn->persistent_address);
3078 if (rval == QLA_ERROR)
3079 continue;
3080 if (existing_conn->persistent_port != conn->persistent_port)
3081 continue;
3082 break;
3083 }
3084
3085 if (idx == max_ddbs)
3086 return QLA_ERROR;
3087
3088 DEBUG2(ql4_printk(KERN_INFO, ha,
3089 "Match found in fwdb sessions\n"));
3090 return QLA_SUCCESS;
3091 }
3092
3093 static struct iscsi_cls_session *
qla4xxx_session_create(struct iscsi_endpoint *ep, uint16_t cmds_max, uint16_t qdepth, uint32_t initial_cmdsn)3094 qla4xxx_session_create(struct iscsi_endpoint *ep,
3095 uint16_t cmds_max, uint16_t qdepth,
3096 uint32_t initial_cmdsn)
3097 {
3098 struct iscsi_cls_session *cls_sess;
3099 struct scsi_qla_host *ha;
3100 struct qla_endpoint *qla_ep;
3101 struct ddb_entry *ddb_entry;
3102 uint16_t ddb_index;
3103 struct iscsi_session *sess;
3104 int ret;
3105
3106 if (!ep) {
3107 printk(KERN_ERR "qla4xxx: missing ep.\n");
3108 return NULL;
3109 }
3110
3111 qla_ep = ep->dd_data;
3112 ha = to_qla_host(qla_ep->host);
3113 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__,
3114 ha->host_no));
3115
3116 ret = qla4xxx_get_ddb_index(ha, &ddb_index);
3117 if (ret == QLA_ERROR)
3118 return NULL;
3119
3120 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, qla_ep->host,
3121 cmds_max, sizeof(struct ddb_entry),
3122 sizeof(struct ql4_task_data),
3123 initial_cmdsn, ddb_index);
3124 if (!cls_sess)
3125 return NULL;
3126
3127 sess = cls_sess->dd_data;
3128 ddb_entry = sess->dd_data;
3129 ddb_entry->fw_ddb_index = ddb_index;
3130 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE;
3131 ddb_entry->ha = ha;
3132 ddb_entry->sess = cls_sess;
3133 ddb_entry->unblock_sess = qla4xxx_unblock_ddb;
3134 ddb_entry->ddb_change = qla4xxx_ddb_change;
3135 clear_bit(DDB_CONN_CLOSE_FAILURE, &ddb_entry->flags);
3136 cls_sess->recovery_tmo = ql4xsess_recovery_tmo;
3137 ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry;
3138 ha->tot_ddbs++;
3139
3140 return cls_sess;
3141 }
3142
qla4xxx_session_destroy(struct iscsi_cls_session *cls_sess)3143 static void qla4xxx_session_destroy(struct iscsi_cls_session *cls_sess)
3144 {
3145 struct iscsi_session *sess;
3146 struct ddb_entry *ddb_entry;
3147 struct scsi_qla_host *ha;
3148 unsigned long flags, wtime;
3149 struct dev_db_entry *fw_ddb_entry = NULL;
3150 dma_addr_t fw_ddb_entry_dma;
3151 uint32_t ddb_state;
3152 int ret;
3153
3154 sess = cls_sess->dd_data;
3155 ddb_entry = sess->dd_data;
3156 ha = ddb_entry->ha;
3157 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__,
3158 ha->host_no));
3159
3160 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3161 &fw_ddb_entry_dma, GFP_KERNEL);
3162 if (!fw_ddb_entry) {
3163 ql4_printk(KERN_ERR, ha,
3164 "%s: Unable to allocate dma buffer\n", __func__);
3165 goto destroy_session;
3166 }
3167
3168 wtime = jiffies + (HZ * LOGOUT_TOV);
3169 do {
3170 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
3171 fw_ddb_entry, fw_ddb_entry_dma,
3172 NULL, NULL, &ddb_state, NULL,
3173 NULL, NULL);
3174 if (ret == QLA_ERROR)
3175 goto destroy_session;
3176
3177 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) ||
3178 (ddb_state == DDB_DS_SESSION_FAILED))
3179 goto destroy_session;
3180
3181 schedule_timeout_uninterruptible(HZ);
3182 } while ((time_after(wtime, jiffies)));
3183
3184 destroy_session:
3185 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
3186 if (test_and_clear_bit(DDB_CONN_CLOSE_FAILURE, &ddb_entry->flags))
3187 clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map);
3188 spin_lock_irqsave(&ha->hardware_lock, flags);
3189 qla4xxx_free_ddb(ha, ddb_entry);
3190 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3191
3192 iscsi_session_teardown(cls_sess);
3193
3194 if (fw_ddb_entry)
3195 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3196 fw_ddb_entry, fw_ddb_entry_dma);
3197 }
3198
3199 static struct iscsi_cls_conn *
qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx)3200 qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx)
3201 {
3202 struct iscsi_cls_conn *cls_conn;
3203 struct iscsi_session *sess;
3204 struct ddb_entry *ddb_entry;
3205 struct scsi_qla_host *ha;
3206
3207 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn),
3208 conn_idx);
3209 if (!cls_conn) {
3210 pr_info("%s: Can not create connection for conn_idx = %u\n",
3211 __func__, conn_idx);
3212 return NULL;
3213 }
3214
3215 sess = cls_sess->dd_data;
3216 ddb_entry = sess->dd_data;
3217 ddb_entry->conn = cls_conn;
3218
3219 ha = ddb_entry->ha;
3220 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: conn_idx = %u\n", __func__,
3221 conn_idx));
3222 return cls_conn;
3223 }
3224
qla4xxx_conn_bind(struct iscsi_cls_session *cls_session, struct iscsi_cls_conn *cls_conn, uint64_t transport_fd, int is_leading)3225 static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session,
3226 struct iscsi_cls_conn *cls_conn,
3227 uint64_t transport_fd, int is_leading)
3228 {
3229 struct iscsi_conn *conn;
3230 struct qla_conn *qla_conn;
3231 struct iscsi_endpoint *ep;
3232 struct ddb_entry *ddb_entry;
3233 struct scsi_qla_host *ha;
3234 struct iscsi_session *sess;
3235
3236 sess = cls_session->dd_data;
3237 ddb_entry = sess->dd_data;
3238 ha = ddb_entry->ha;
3239
3240 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: sid = %d, cid = %d\n", __func__,
3241 cls_session->sid, cls_conn->cid));
3242
3243 if (iscsi_conn_bind(cls_session, cls_conn, is_leading))
3244 return -EINVAL;
3245 ep = iscsi_lookup_endpoint(transport_fd);
3246 if (!ep)
3247 return -EINVAL;
3248 conn = cls_conn->dd_data;
3249 qla_conn = conn->dd_data;
3250 qla_conn->qla_ep = ep->dd_data;
3251 iscsi_put_endpoint(ep);
3252 return 0;
3253 }
3254
qla4xxx_conn_start(struct iscsi_cls_conn *cls_conn)3255 static int qla4xxx_conn_start(struct iscsi_cls_conn *cls_conn)
3256 {
3257 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
3258 struct iscsi_session *sess;
3259 struct ddb_entry *ddb_entry;
3260 struct scsi_qla_host *ha;
3261 struct dev_db_entry *fw_ddb_entry = NULL;
3262 dma_addr_t fw_ddb_entry_dma;
3263 uint32_t mbx_sts = 0;
3264 int ret = 0;
3265 int status = QLA_SUCCESS;
3266
3267 sess = cls_sess->dd_data;
3268 ddb_entry = sess->dd_data;
3269 ha = ddb_entry->ha;
3270 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: sid = %d, cid = %d\n", __func__,
3271 cls_sess->sid, cls_conn->cid));
3272
3273 /* Check if we have matching FW DDB, if yes then do not
3274 * login to this target. This could cause target to logout previous
3275 * connection
3276 */
3277 ret = qla4xxx_match_fwdb_session(ha, cls_conn);
3278 if (ret == QLA_SUCCESS) {
3279 ql4_printk(KERN_INFO, ha,
3280 "Session already exist in FW.\n");
3281 ret = -EEXIST;
3282 goto exit_conn_start;
3283 }
3284
3285 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3286 &fw_ddb_entry_dma, GFP_KERNEL);
3287 if (!fw_ddb_entry) {
3288 ql4_printk(KERN_ERR, ha,
3289 "%s: Unable to allocate dma buffer\n", __func__);
3290 ret = -ENOMEM;
3291 goto exit_conn_start;
3292 }
3293
3294 ret = qla4xxx_set_param_ddbentry(ha, ddb_entry, cls_conn, &mbx_sts);
3295 if (ret) {
3296 /* If iscsid is stopped and started then no need to do
3297 * set param again since ddb state will be already
3298 * active and FW does not allow set ddb to an
3299 * active session.
3300 */
3301 if (mbx_sts)
3302 if (ddb_entry->fw_ddb_device_state ==
3303 DDB_DS_SESSION_ACTIVE) {
3304 ddb_entry->unblock_sess(ddb_entry->sess);
3305 goto exit_set_param;
3306 }
3307
3308 ql4_printk(KERN_ERR, ha, "%s: Failed set param for index[%d]\n",
3309 __func__, ddb_entry->fw_ddb_index);
3310 goto exit_conn_start;
3311 }
3312
3313 status = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index);
3314 if (status == QLA_ERROR) {
3315 ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__,
3316 sess->targetname);
3317 ret = -EINVAL;
3318 goto exit_conn_start;
3319 }
3320
3321 if (ddb_entry->fw_ddb_device_state == DDB_DS_NO_CONNECTION_ACTIVE)
3322 ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS;
3323
3324 DEBUG2(printk(KERN_INFO "%s: DDB state [%d]\n", __func__,
3325 ddb_entry->fw_ddb_device_state));
3326
3327 exit_set_param:
3328 ret = 0;
3329
3330 exit_conn_start:
3331 if (fw_ddb_entry)
3332 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3333 fw_ddb_entry, fw_ddb_entry_dma);
3334 return ret;
3335 }
3336
qla4xxx_conn_destroy(struct iscsi_cls_conn *cls_conn)3337 static void qla4xxx_conn_destroy(struct iscsi_cls_conn *cls_conn)
3338 {
3339 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
3340 struct iscsi_session *sess;
3341 struct scsi_qla_host *ha;
3342 struct ddb_entry *ddb_entry;
3343 int options;
3344
3345 sess = cls_sess->dd_data;
3346 ddb_entry = sess->dd_data;
3347 ha = ddb_entry->ha;
3348 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: cid = %d\n", __func__,
3349 cls_conn->cid));
3350
3351 options = LOGOUT_OPTION_CLOSE_SESSION;
3352 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR)
3353 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__);
3354 }
3355
qla4xxx_task_work(struct work_struct *wdata)3356 static void qla4xxx_task_work(struct work_struct *wdata)
3357 {
3358 struct ql4_task_data *task_data;
3359 struct scsi_qla_host *ha;
3360 struct passthru_status *sts;
3361 struct iscsi_task *task;
3362 struct iscsi_hdr *hdr;
3363 uint8_t *data;
3364 uint32_t data_len;
3365 struct iscsi_conn *conn;
3366 int hdr_len;
3367 itt_t itt;
3368
3369 task_data = container_of(wdata, struct ql4_task_data, task_work);
3370 ha = task_data->ha;
3371 task = task_data->task;
3372 sts = &task_data->sts;
3373 hdr_len = sizeof(struct iscsi_hdr);
3374
3375 DEBUG3(printk(KERN_INFO "Status returned\n"));
3376 DEBUG3(qla4xxx_dump_buffer(sts, 64));
3377 DEBUG3(printk(KERN_INFO "Response buffer"));
3378 DEBUG3(qla4xxx_dump_buffer(task_data->resp_buffer, 64));
3379
3380 conn = task->conn;
3381
3382 switch (sts->completionStatus) {
3383 case PASSTHRU_STATUS_COMPLETE:
3384 hdr = (struct iscsi_hdr *)task_data->resp_buffer;
3385 /* Assign back the itt in hdr, until we use the PREASSIGN_TAG */
3386 itt = sts->handle;
3387 hdr->itt = itt;
3388 data = task_data->resp_buffer + hdr_len;
3389 data_len = task_data->resp_len - hdr_len;
3390 iscsi_complete_pdu(conn, hdr, data, data_len);
3391 break;
3392 default:
3393 ql4_printk(KERN_ERR, ha, "Passthru failed status = 0x%x\n",
3394 sts->completionStatus);
3395 break;
3396 }
3397 return;
3398 }
3399
qla4xxx_alloc_pdu(struct iscsi_task *task, uint8_t opcode)3400 static int qla4xxx_alloc_pdu(struct iscsi_task *task, uint8_t opcode)
3401 {
3402 struct ql4_task_data *task_data;
3403 struct iscsi_session *sess;
3404 struct ddb_entry *ddb_entry;
3405 struct scsi_qla_host *ha;
3406 int hdr_len;
3407
3408 sess = task->conn->session;
3409 ddb_entry = sess->dd_data;
3410 ha = ddb_entry->ha;
3411 task_data = task->dd_data;
3412 memset(task_data, 0, sizeof(struct ql4_task_data));
3413
3414 if (task->sc) {
3415 ql4_printk(KERN_INFO, ha,
3416 "%s: SCSI Commands not implemented\n", __func__);
3417 return -EINVAL;
3418 }
3419
3420 hdr_len = sizeof(struct iscsi_hdr);
3421 task_data->ha = ha;
3422 task_data->task = task;
3423
3424 if (task->data_count) {
3425 task_data->data_dma = dma_map_single(&ha->pdev->dev, task->data,
3426 task->data_count,
3427 DMA_TO_DEVICE);
3428 }
3429
3430 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n",
3431 __func__, task->conn->max_recv_dlength, hdr_len));
3432
3433 task_data->resp_len = task->conn->max_recv_dlength + hdr_len;
3434 task_data->resp_buffer = dma_alloc_coherent(&ha->pdev->dev,
3435 task_data->resp_len,
3436 &task_data->resp_dma,
3437 GFP_ATOMIC);
3438 if (!task_data->resp_buffer)
3439 goto exit_alloc_pdu;
3440
3441 task_data->req_len = task->data_count + hdr_len;
3442 task_data->req_buffer = dma_alloc_coherent(&ha->pdev->dev,
3443 task_data->req_len,
3444 &task_data->req_dma,
3445 GFP_ATOMIC);
3446 if (!task_data->req_buffer)
3447 goto exit_alloc_pdu;
3448
3449 task->hdr = task_data->req_buffer;
3450
3451 INIT_WORK(&task_data->task_work, qla4xxx_task_work);
3452
3453 return 0;
3454
3455 exit_alloc_pdu:
3456 if (task_data->resp_buffer)
3457 dma_free_coherent(&ha->pdev->dev, task_data->resp_len,
3458 task_data->resp_buffer, task_data->resp_dma);
3459
3460 if (task_data->req_buffer)
3461 dma_free_coherent(&ha->pdev->dev, task_data->req_len,
3462 task_data->req_buffer, task_data->req_dma);
3463 return -ENOMEM;
3464 }
3465
qla4xxx_task_cleanup(struct iscsi_task *task)3466 static void qla4xxx_task_cleanup(struct iscsi_task *task)
3467 {
3468 struct ql4_task_data *task_data;
3469 struct iscsi_session *sess;
3470 struct ddb_entry *ddb_entry;
3471 struct scsi_qla_host *ha;
3472 int hdr_len;
3473
3474 hdr_len = sizeof(struct iscsi_hdr);
3475 sess = task->conn->session;
3476 ddb_entry = sess->dd_data;
3477 ha = ddb_entry->ha;
3478 task_data = task->dd_data;
3479
3480 if (task->data_count) {
3481 dma_unmap_single(&ha->pdev->dev, task_data->data_dma,
3482 task->data_count, DMA_TO_DEVICE);
3483 }
3484
3485 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n",
3486 __func__, task->conn->max_recv_dlength, hdr_len));
3487
3488 dma_free_coherent(&ha->pdev->dev, task_data->resp_len,
3489 task_data->resp_buffer, task_data->resp_dma);
3490 dma_free_coherent(&ha->pdev->dev, task_data->req_len,
3491 task_data->req_buffer, task_data->req_dma);
3492 return;
3493 }
3494
qla4xxx_task_xmit(struct iscsi_task *task)3495 static int qla4xxx_task_xmit(struct iscsi_task *task)
3496 {
3497 struct scsi_cmnd *sc = task->sc;
3498 struct iscsi_session *sess = task->conn->session;
3499 struct ddb_entry *ddb_entry = sess->dd_data;
3500 struct scsi_qla_host *ha = ddb_entry->ha;
3501
3502 if (!sc)
3503 return qla4xxx_send_passthru0(task);
3504
3505 ql4_printk(KERN_INFO, ha, "%s: scsi cmd xmit not implemented\n",
3506 __func__);
3507 return -ENOSYS;
3508 }
3509
qla4xxx_copy_from_fwddb_param(struct iscsi_bus_flash_session *sess, struct iscsi_bus_flash_conn *conn, struct dev_db_entry *fw_ddb_entry)3510 static int qla4xxx_copy_from_fwddb_param(struct iscsi_bus_flash_session *sess,
3511 struct iscsi_bus_flash_conn *conn,
3512 struct dev_db_entry *fw_ddb_entry)
3513 {
3514 unsigned long options = 0;
3515 int rc = 0;
3516
3517 options = le16_to_cpu(fw_ddb_entry->options);
3518 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options);
3519 if (test_bit(OPT_IPV6_DEVICE, &options)) {
3520 rc = iscsi_switch_str_param(&sess->portal_type,
3521 PORTAL_TYPE_IPV6);
3522 if (rc)
3523 goto exit_copy;
3524 } else {
3525 rc = iscsi_switch_str_param(&sess->portal_type,
3526 PORTAL_TYPE_IPV4);
3527 if (rc)
3528 goto exit_copy;
3529 }
3530
3531 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE,
3532 &options);
3533 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options);
3534 sess->entry_state = test_bit(OPT_ENTRY_STATE, &options);
3535
3536 options = le16_to_cpu(fw_ddb_entry->iscsi_options);
3537 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options);
3538 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options);
3539 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options);
3540 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options);
3541 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER,
3542 &options);
3543 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options);
3544 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options);
3545 conn->snack_req_en = test_bit(ISCSIOPT_SNACK_REQ_EN, &options);
3546 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN,
3547 &options);
3548 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options);
3549 sess->discovery_auth_optional =
3550 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options);
3551 if (test_bit(ISCSIOPT_ERL1, &options))
3552 sess->erl |= BIT_1;
3553 if (test_bit(ISCSIOPT_ERL0, &options))
3554 sess->erl |= BIT_0;
3555
3556 options = le16_to_cpu(fw_ddb_entry->tcp_options);
3557 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options);
3558 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options);
3559 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options);
3560 if (test_bit(TCPOPT_TIMER_SCALE3, &options))
3561 conn->tcp_timer_scale |= BIT_3;
3562 if (test_bit(TCPOPT_TIMER_SCALE2, &options))
3563 conn->tcp_timer_scale |= BIT_2;
3564 if (test_bit(TCPOPT_TIMER_SCALE1, &options))
3565 conn->tcp_timer_scale |= BIT_1;
3566
3567 conn->tcp_timer_scale >>= 1;
3568 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options);
3569
3570 options = le16_to_cpu(fw_ddb_entry->ip_options);
3571 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options);
3572
3573 conn->max_recv_dlength = BYTE_UNITS *
3574 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len);
3575 conn->max_xmit_dlength = BYTE_UNITS *
3576 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len);
3577 sess->first_burst = BYTE_UNITS *
3578 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len);
3579 sess->max_burst = BYTE_UNITS *
3580 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len);
3581 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t);
3582 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
3583 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain);
3584 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
3585 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss);
3586 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf;
3587 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf;
3588 conn->ipv6_flow_label = le16_to_cpu(fw_ddb_entry->ipv6_flow_lbl);
3589 conn->keepalive_timeout = le16_to_cpu(fw_ddb_entry->ka_timeout);
3590 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port);
3591 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn);
3592 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn);
3593 sess->discovery_parent_idx = le16_to_cpu(fw_ddb_entry->ddb_link);
3594 sess->discovery_parent_type = le16_to_cpu(fw_ddb_entry->ddb_link);
3595 sess->chap_out_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
3596 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid);
3597
3598 sess->default_taskmgmt_timeout =
3599 le16_to_cpu(fw_ddb_entry->def_timeout);
3600 conn->port = le16_to_cpu(fw_ddb_entry->port);
3601
3602 options = le16_to_cpu(fw_ddb_entry->options);
3603 conn->ipaddress = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL);
3604 if (!conn->ipaddress) {
3605 rc = -ENOMEM;
3606 goto exit_copy;
3607 }
3608
3609 conn->redirect_ipaddr = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL);
3610 if (!conn->redirect_ipaddr) {
3611 rc = -ENOMEM;
3612 goto exit_copy;
3613 }
3614
3615 memcpy(conn->ipaddress, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN);
3616 memcpy(conn->redirect_ipaddr, fw_ddb_entry->tgt_addr, IPv6_ADDR_LEN);
3617
3618 if (test_bit(OPT_IPV6_DEVICE, &options)) {
3619 conn->ipv6_traffic_class = fw_ddb_entry->ipv4_tos;
3620
3621 conn->link_local_ipv6_addr = kmemdup(
3622 fw_ddb_entry->link_local_ipv6_addr,
3623 IPv6_ADDR_LEN, GFP_KERNEL);
3624 if (!conn->link_local_ipv6_addr) {
3625 rc = -ENOMEM;
3626 goto exit_copy;
3627 }
3628 } else {
3629 conn->ipv4_tos = fw_ddb_entry->ipv4_tos;
3630 }
3631
3632 if (fw_ddb_entry->iscsi_name[0]) {
3633 rc = iscsi_switch_str_param(&sess->targetname,
3634 (char *)fw_ddb_entry->iscsi_name);
3635 if (rc)
3636 goto exit_copy;
3637 }
3638
3639 if (fw_ddb_entry->iscsi_alias[0]) {
3640 rc = iscsi_switch_str_param(&sess->targetalias,
3641 (char *)fw_ddb_entry->iscsi_alias);
3642 if (rc)
3643 goto exit_copy;
3644 }
3645
3646 COPY_ISID(sess->isid, fw_ddb_entry->isid);
3647
3648 exit_copy:
3649 return rc;
3650 }
3651
qla4xxx_copy_to_fwddb_param(struct iscsi_bus_flash_session *sess, struct iscsi_bus_flash_conn *conn, struct dev_db_entry *fw_ddb_entry)3652 static int qla4xxx_copy_to_fwddb_param(struct iscsi_bus_flash_session *sess,
3653 struct iscsi_bus_flash_conn *conn,
3654 struct dev_db_entry *fw_ddb_entry)
3655 {
3656 uint16_t options;
3657 int rc = 0;
3658
3659 options = le16_to_cpu(fw_ddb_entry->options);
3660 SET_BITVAL(conn->is_fw_assigned_ipv6, options, BIT_11);
3661 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4))
3662 options |= BIT_8;
3663 else
3664 options &= ~BIT_8;
3665
3666 SET_BITVAL(sess->auto_snd_tgt_disable, options, BIT_6);
3667 SET_BITVAL(sess->discovery_sess, options, BIT_4);
3668 SET_BITVAL(sess->entry_state, options, BIT_3);
3669 fw_ddb_entry->options = cpu_to_le16(options);
3670
3671 options = le16_to_cpu(fw_ddb_entry->iscsi_options);
3672 SET_BITVAL(conn->hdrdgst_en, options, BIT_13);
3673 SET_BITVAL(conn->datadgst_en, options, BIT_12);
3674 SET_BITVAL(sess->imm_data_en, options, BIT_11);
3675 SET_BITVAL(sess->initial_r2t_en, options, BIT_10);
3676 SET_BITVAL(sess->dataseq_inorder_en, options, BIT_9);
3677 SET_BITVAL(sess->pdu_inorder_en, options, BIT_8);
3678 SET_BITVAL(sess->chap_auth_en, options, BIT_7);
3679 SET_BITVAL(conn->snack_req_en, options, BIT_6);
3680 SET_BITVAL(sess->discovery_logout_en, options, BIT_5);
3681 SET_BITVAL(sess->bidi_chap_en, options, BIT_4);
3682 SET_BITVAL(sess->discovery_auth_optional, options, BIT_3);
3683 SET_BITVAL(sess->erl & BIT_1, options, BIT_1);
3684 SET_BITVAL(sess->erl & BIT_0, options, BIT_0);
3685 fw_ddb_entry->iscsi_options = cpu_to_le16(options);
3686
3687 options = le16_to_cpu(fw_ddb_entry->tcp_options);
3688 SET_BITVAL(conn->tcp_timestamp_stat, options, BIT_6);
3689 SET_BITVAL(conn->tcp_nagle_disable, options, BIT_5);
3690 SET_BITVAL(conn->tcp_wsf_disable, options, BIT_4);
3691 SET_BITVAL(conn->tcp_timer_scale & BIT_2, options, BIT_3);
3692 SET_BITVAL(conn->tcp_timer_scale & BIT_1, options, BIT_2);
3693 SET_BITVAL(conn->tcp_timer_scale & BIT_0, options, BIT_1);
3694 SET_BITVAL(conn->tcp_timestamp_en, options, BIT_0);
3695 fw_ddb_entry->tcp_options = cpu_to_le16(options);
3696
3697 options = le16_to_cpu(fw_ddb_entry->ip_options);
3698 SET_BITVAL(conn->fragment_disable, options, BIT_4);
3699 fw_ddb_entry->ip_options = cpu_to_le16(options);
3700
3701 fw_ddb_entry->iscsi_max_outsnd_r2t = cpu_to_le16(sess->max_r2t);
3702 fw_ddb_entry->iscsi_max_rcv_data_seg_len =
3703 cpu_to_le16(conn->max_recv_dlength / BYTE_UNITS);
3704 fw_ddb_entry->iscsi_max_snd_data_seg_len =
3705 cpu_to_le16(conn->max_xmit_dlength / BYTE_UNITS);
3706 fw_ddb_entry->iscsi_first_burst_len =
3707 cpu_to_le16(sess->first_burst / BYTE_UNITS);
3708 fw_ddb_entry->iscsi_max_burst_len = cpu_to_le16(sess->max_burst /
3709 BYTE_UNITS);
3710 fw_ddb_entry->iscsi_def_time2wait = cpu_to_le16(sess->time2wait);
3711 fw_ddb_entry->iscsi_def_time2retain = cpu_to_le16(sess->time2retain);
3712 fw_ddb_entry->tgt_portal_grp = cpu_to_le16(sess->tpgt);
3713 fw_ddb_entry->mss = cpu_to_le16(conn->max_segment_size);
3714 fw_ddb_entry->tcp_xmt_wsf = (uint8_t) cpu_to_le32(conn->tcp_xmit_wsf);
3715 fw_ddb_entry->tcp_rcv_wsf = (uint8_t) cpu_to_le32(conn->tcp_recv_wsf);
3716 fw_ddb_entry->ipv6_flow_lbl = cpu_to_le16(conn->ipv6_flow_label);
3717 fw_ddb_entry->ka_timeout = cpu_to_le16(conn->keepalive_timeout);
3718 fw_ddb_entry->lcl_port = cpu_to_le16(conn->local_port);
3719 fw_ddb_entry->stat_sn = cpu_to_le32(conn->statsn);
3720 fw_ddb_entry->exp_stat_sn = cpu_to_le32(conn->exp_statsn);
3721 fw_ddb_entry->ddb_link = cpu_to_le16(sess->discovery_parent_idx);
3722 fw_ddb_entry->chap_tbl_idx = cpu_to_le16(sess->chap_out_idx);
3723 fw_ddb_entry->tsid = cpu_to_le16(sess->tsid);
3724 fw_ddb_entry->port = cpu_to_le16(conn->port);
3725 fw_ddb_entry->def_timeout =
3726 cpu_to_le16(sess->default_taskmgmt_timeout);
3727
3728 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4))
3729 fw_ddb_entry->ipv4_tos = conn->ipv6_traffic_class;
3730 else
3731 fw_ddb_entry->ipv4_tos = conn->ipv4_tos;
3732
3733 if (conn->ipaddress)
3734 memcpy(fw_ddb_entry->ip_addr, conn->ipaddress,
3735 sizeof(fw_ddb_entry->ip_addr));
3736
3737 if (conn->redirect_ipaddr)
3738 memcpy(fw_ddb_entry->tgt_addr, conn->redirect_ipaddr,
3739 sizeof(fw_ddb_entry->tgt_addr));
3740
3741 if (conn->link_local_ipv6_addr)
3742 memcpy(fw_ddb_entry->link_local_ipv6_addr,
3743 conn->link_local_ipv6_addr,
3744 sizeof(fw_ddb_entry->link_local_ipv6_addr));
3745
3746 if (sess->targetname)
3747 memcpy(fw_ddb_entry->iscsi_name, sess->targetname,
3748 sizeof(fw_ddb_entry->iscsi_name));
3749
3750 if (sess->targetalias)
3751 memcpy(fw_ddb_entry->iscsi_alias, sess->targetalias,
3752 sizeof(fw_ddb_entry->iscsi_alias));
3753
3754 COPY_ISID(fw_ddb_entry->isid, sess->isid);
3755
3756 return rc;
3757 }
3758
qla4xxx_copy_to_sess_conn_params(struct iscsi_conn *conn, struct iscsi_session *sess, struct dev_db_entry *fw_ddb_entry)3759 static void qla4xxx_copy_to_sess_conn_params(struct iscsi_conn *conn,
3760 struct iscsi_session *sess,
3761 struct dev_db_entry *fw_ddb_entry)
3762 {
3763 unsigned long options = 0;
3764 uint16_t ddb_link;
3765 uint16_t disc_parent;
3766 char ip_addr[DDB_IPADDR_LEN];
3767
3768 options = le16_to_cpu(fw_ddb_entry->options);
3769 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options);
3770 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE,
3771 &options);
3772 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options);
3773
3774 options = le16_to_cpu(fw_ddb_entry->iscsi_options);
3775 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options);
3776 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options);
3777 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options);
3778 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options);
3779 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER,
3780 &options);
3781 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options);
3782 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options);
3783 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN,
3784 &options);
3785 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options);
3786 sess->discovery_auth_optional =
3787 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options);
3788 if (test_bit(ISCSIOPT_ERL1, &options))
3789 sess->erl |= BIT_1;
3790 if (test_bit(ISCSIOPT_ERL0, &options))
3791 sess->erl |= BIT_0;
3792
3793 options = le16_to_cpu(fw_ddb_entry->tcp_options);
3794 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options);
3795 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options);
3796 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options);
3797 if (test_bit(TCPOPT_TIMER_SCALE3, &options))
3798 conn->tcp_timer_scale |= BIT_3;
3799 if (test_bit(TCPOPT_TIMER_SCALE2, &options))
3800 conn->tcp_timer_scale |= BIT_2;
3801 if (test_bit(TCPOPT_TIMER_SCALE1, &options))
3802 conn->tcp_timer_scale |= BIT_1;
3803
3804 conn->tcp_timer_scale >>= 1;
3805 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options);
3806
3807 options = le16_to_cpu(fw_ddb_entry->ip_options);
3808 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options);
3809
3810 conn->max_recv_dlength = BYTE_UNITS *
3811 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len);
3812 conn->max_xmit_dlength = BYTE_UNITS *
3813 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len);
3814 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t);
3815 sess->first_burst = BYTE_UNITS *
3816 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len);
3817 sess->max_burst = BYTE_UNITS *
3818 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len);
3819 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
3820 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain);
3821 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
3822 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss);
3823 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf;
3824 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf;
3825 conn->ipv4_tos = fw_ddb_entry->ipv4_tos;
3826 conn->keepalive_tmo = le16_to_cpu(fw_ddb_entry->ka_timeout);
3827 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port);
3828 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn);
3829 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn);
3830 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid);
3831 COPY_ISID(sess->isid, fw_ddb_entry->isid);
3832
3833 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
3834 if (ddb_link == DDB_ISNS)
3835 disc_parent = ISCSI_DISC_PARENT_ISNS;
3836 else if (ddb_link == DDB_NO_LINK)
3837 disc_parent = ISCSI_DISC_PARENT_UNKNOWN;
3838 else if (ddb_link < MAX_DDB_ENTRIES)
3839 disc_parent = ISCSI_DISC_PARENT_SENDTGT;
3840 else
3841 disc_parent = ISCSI_DISC_PARENT_UNKNOWN;
3842
3843 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_DISCOVERY_PARENT_TYPE,
3844 iscsi_get_discovery_parent_name(disc_parent), 0);
3845
3846 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_TARGET_ALIAS,
3847 (char *)fw_ddb_entry->iscsi_alias, 0);
3848
3849 options = le16_to_cpu(fw_ddb_entry->options);
3850 if (options & DDB_OPT_IPV6_DEVICE) {
3851 memset(ip_addr, 0, sizeof(ip_addr));
3852 sprintf(ip_addr, "%pI6", fw_ddb_entry->link_local_ipv6_addr);
3853 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_LOCAL_IPADDR,
3854 (char *)ip_addr, 0);
3855 }
3856 }
3857
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)3858 static void qla4xxx_copy_fwddb_param(struct scsi_qla_host *ha,
3859 struct dev_db_entry *fw_ddb_entry,
3860 struct iscsi_cls_session *cls_sess,
3861 struct iscsi_cls_conn *cls_conn)
3862 {
3863 int buflen = 0;
3864 struct iscsi_session *sess;
3865 struct ddb_entry *ddb_entry;
3866 struct ql4_chap_table chap_tbl;
3867 struct iscsi_conn *conn;
3868 char ip_addr[DDB_IPADDR_LEN];
3869 uint16_t options = 0;
3870
3871 sess = cls_sess->dd_data;
3872 ddb_entry = sess->dd_data;
3873 conn = cls_conn->dd_data;
3874 memset(&chap_tbl, 0, sizeof(chap_tbl));
3875
3876 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
3877
3878 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry);
3879
3880 sess->def_taskmgmt_tmo = le16_to_cpu(fw_ddb_entry->def_timeout);
3881 conn->persistent_port = le16_to_cpu(fw_ddb_entry->port);
3882
3883 memset(ip_addr, 0, sizeof(ip_addr));
3884 options = le16_to_cpu(fw_ddb_entry->options);
3885 if (options & DDB_OPT_IPV6_DEVICE) {
3886 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv6", 4);
3887
3888 memset(ip_addr, 0, sizeof(ip_addr));
3889 sprintf(ip_addr, "%pI6", fw_ddb_entry->ip_addr);
3890 } else {
3891 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv4", 4);
3892 sprintf(ip_addr, "%pI4", fw_ddb_entry->ip_addr);
3893 }
3894
3895 iscsi_set_param(cls_conn, ISCSI_PARAM_PERSISTENT_ADDRESS,
3896 (char *)ip_addr, buflen);
3897 iscsi_set_param(cls_conn, ISCSI_PARAM_TARGET_NAME,
3898 (char *)fw_ddb_entry->iscsi_name, buflen);
3899 iscsi_set_param(cls_conn, ISCSI_PARAM_INITIATOR_NAME,
3900 (char *)ha->name_string, buflen);
3901
3902 if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) {
3903 if (!qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name,
3904 chap_tbl.secret,
3905 ddb_entry->chap_tbl_idx)) {
3906 iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME,
3907 (char *)chap_tbl.name,
3908 strlen((char *)chap_tbl.name));
3909 iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD,
3910 (char *)chap_tbl.secret,
3911 chap_tbl.secret_len);
3912 }
3913 }
3914 }
3915
qla4xxx_update_session_conn_fwddb_param(struct scsi_qla_host *ha, struct ddb_entry *ddb_entry)3916 void qla4xxx_update_session_conn_fwddb_param(struct scsi_qla_host *ha,
3917 struct ddb_entry *ddb_entry)
3918 {
3919 struct iscsi_cls_session *cls_sess;
3920 struct iscsi_cls_conn *cls_conn;
3921 uint32_t ddb_state;
3922 dma_addr_t fw_ddb_entry_dma;
3923 struct dev_db_entry *fw_ddb_entry;
3924
3925 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3926 &fw_ddb_entry_dma, GFP_KERNEL);
3927 if (!fw_ddb_entry) {
3928 ql4_printk(KERN_ERR, ha,
3929 "%s: Unable to allocate dma buffer\n", __func__);
3930 goto exit_session_conn_fwddb_param;
3931 }
3932
3933 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry,
3934 fw_ddb_entry_dma, NULL, NULL, &ddb_state,
3935 NULL, NULL, NULL) == QLA_ERROR) {
3936 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
3937 "get_ddb_entry for fw_ddb_index %d\n",
3938 ha->host_no, __func__,
3939 ddb_entry->fw_ddb_index));
3940 goto exit_session_conn_fwddb_param;
3941 }
3942
3943 cls_sess = ddb_entry->sess;
3944
3945 cls_conn = ddb_entry->conn;
3946
3947 /* Update params */
3948 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn);
3949
3950 exit_session_conn_fwddb_param:
3951 if (fw_ddb_entry)
3952 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3953 fw_ddb_entry, fw_ddb_entry_dma);
3954 }
3955
qla4xxx_update_session_conn_param(struct scsi_qla_host *ha, struct ddb_entry *ddb_entry)3956 void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha,
3957 struct ddb_entry *ddb_entry)
3958 {
3959 struct iscsi_cls_session *cls_sess;
3960 struct iscsi_cls_conn *cls_conn;
3961 struct iscsi_session *sess;
3962 struct iscsi_conn *conn;
3963 uint32_t ddb_state;
3964 dma_addr_t fw_ddb_entry_dma;
3965 struct dev_db_entry *fw_ddb_entry;
3966
3967 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3968 &fw_ddb_entry_dma, GFP_KERNEL);
3969 if (!fw_ddb_entry) {
3970 ql4_printk(KERN_ERR, ha,
3971 "%s: Unable to allocate dma buffer\n", __func__);
3972 goto exit_session_conn_param;
3973 }
3974
3975 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry,
3976 fw_ddb_entry_dma, NULL, NULL, &ddb_state,
3977 NULL, NULL, NULL) == QLA_ERROR) {
3978 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
3979 "get_ddb_entry for fw_ddb_index %d\n",
3980 ha->host_no, __func__,
3981 ddb_entry->fw_ddb_index));
3982 goto exit_session_conn_param;
3983 }
3984
3985 cls_sess = ddb_entry->sess;
3986 sess = cls_sess->dd_data;
3987
3988 cls_conn = ddb_entry->conn;
3989 conn = cls_conn->dd_data;
3990
3991 /* Update timers after login */
3992 ddb_entry->default_relogin_timeout =
3993 (le16_to_cpu(fw_ddb_entry->def_timeout) > LOGIN_TOV) &&
3994 (le16_to_cpu(fw_ddb_entry->def_timeout) < LOGIN_TOV * 10) ?
3995 le16_to_cpu(fw_ddb_entry->def_timeout) : LOGIN_TOV;
3996 ddb_entry->default_time2wait =
3997 le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
3998
3999 /* Update params */
4000 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
4001 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry);
4002
4003 memcpy(sess->initiatorname, ha->name_string,
4004 min(sizeof(ha->name_string), sizeof(sess->initiatorname)));
4005
4006 exit_session_conn_param:
4007 if (fw_ddb_entry)
4008 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
4009 fw_ddb_entry, fw_ddb_entry_dma);
4010 }
4011
4012 /*
4013 * Timer routines
4014 */
4015 static void qla4xxx_timer(struct timer_list *t);
4016
qla4xxx_start_timer(struct scsi_qla_host *ha, unsigned long interval)4017 static void qla4xxx_start_timer(struct scsi_qla_host *ha,
4018 unsigned long interval)
4019 {
4020 DEBUG(printk("scsi: %s: Starting timer thread for adapter %d\n",
4021 __func__, ha->host->host_no));
4022 timer_setup(&ha->timer, qla4xxx_timer, 0);
4023 ha->timer.expires = jiffies + interval * HZ;
4024 add_timer(&ha->timer);
4025 ha->timer_active = 1;
4026 }
4027
qla4xxx_stop_timer(struct scsi_qla_host *ha)4028 static void qla4xxx_stop_timer(struct scsi_qla_host *ha)
4029 {
4030 del_timer_sync(&ha->timer);
4031 ha->timer_active = 0;
4032 }
4033
4034 /***
4035 * qla4xxx_mark_device_missing - blocks the session
4036 * @cls_session: Pointer to the session to be blocked
4037 * @ddb_entry: Pointer to device database entry
4038 *
4039 * This routine marks a device missing and close connection.
4040 **/
qla4xxx_mark_device_missing(struct iscsi_cls_session *cls_session)4041 void qla4xxx_mark_device_missing(struct iscsi_cls_session *cls_session)
4042 {
4043 iscsi_block_session(cls_session);
4044 }
4045
4046 /**
4047 * qla4xxx_mark_all_devices_missing - mark all devices as missing.
4048 * @ha: Pointer to host adapter structure.
4049 *
4050 * This routine marks a device missing and resets the relogin retry count.
4051 **/
qla4xxx_mark_all_devices_missing(struct scsi_qla_host *ha)4052 void qla4xxx_mark_all_devices_missing(struct scsi_qla_host *ha)
4053 {
4054 iscsi_host_for_each_session(ha->host, qla4xxx_mark_device_missing);
4055 }
4056
qla4xxx_get_new_srb(struct scsi_qla_host *ha, struct ddb_entry *ddb_entry, struct scsi_cmnd *cmd)4057 static struct srb* qla4xxx_get_new_srb(struct scsi_qla_host *ha,
4058 struct ddb_entry *ddb_entry,
4059 struct scsi_cmnd *cmd)
4060 {
4061 struct srb *srb;
4062
4063 srb = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
4064 if (!srb)
4065 return srb;
4066
4067 kref_init(&srb->srb_ref);
4068 srb->ha = ha;
4069 srb->ddb = ddb_entry;
4070 srb->cmd = cmd;
4071 srb->flags = 0;
4072 CMD_SP(cmd) = (void *)srb;
4073
4074 return srb;
4075 }
4076
qla4xxx_srb_free_dma(struct scsi_qla_host *ha, struct srb *srb)4077 static void qla4xxx_srb_free_dma(struct scsi_qla_host *ha, struct srb *srb)
4078 {
4079 struct scsi_cmnd *cmd = srb->cmd;
4080
4081 if (srb->flags & SRB_DMA_VALID) {
4082 scsi_dma_unmap(cmd);
4083 srb->flags &= ~SRB_DMA_VALID;
4084 }
4085 CMD_SP(cmd) = NULL;
4086 }
4087
qla4xxx_srb_compl(struct kref *ref)4088 void qla4xxx_srb_compl(struct kref *ref)
4089 {
4090 struct srb *srb = container_of(ref, struct srb, srb_ref);
4091 struct scsi_cmnd *cmd = srb->cmd;
4092 struct scsi_qla_host *ha = srb->ha;
4093
4094 qla4xxx_srb_free_dma(ha, srb);
4095
4096 mempool_free(srb, ha->srb_mempool);
4097
4098 cmd->scsi_done(cmd);
4099 }
4100
4101 /**
4102 * qla4xxx_queuecommand - scsi layer issues scsi command to driver.
4103 * @host: scsi host
4104 * @cmd: Pointer to Linux's SCSI command structure
4105 *
4106 * Remarks:
4107 * This routine is invoked by Linux to send a SCSI command to the driver.
4108 * The mid-level driver tries to ensure that queuecommand never gets
4109 * invoked concurrently with itself or the interrupt handler (although
4110 * the interrupt handler may call this routine as part of request-
4111 * completion handling). Unfortunely, it sometimes calls the scheduler
4112 * in interrupt context which is a big NO! NO!.
4113 **/
qla4xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)4114 static int qla4xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
4115 {
4116 struct scsi_qla_host *ha = to_qla_host(host);
4117 struct ddb_entry *ddb_entry = cmd->device->hostdata;
4118 struct iscsi_cls_session *sess = ddb_entry->sess;
4119 struct srb *srb;
4120 int rval;
4121
4122 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
4123 if (test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags))
4124 cmd->result = DID_NO_CONNECT << 16;
4125 else
4126 cmd->result = DID_REQUEUE << 16;
4127 goto qc_fail_command;
4128 }
4129
4130 if (!sess) {
4131 cmd->result = DID_IMM_RETRY << 16;
4132 goto qc_fail_command;
4133 }
4134
4135 rval = iscsi_session_chkready(sess);
4136 if (rval) {
4137 cmd->result = rval;
4138 goto qc_fail_command;
4139 }
4140
4141 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
4142 test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) ||
4143 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
4144 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) ||
4145 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) ||
4146 !test_bit(AF_ONLINE, &ha->flags) ||
4147 !test_bit(AF_LINK_UP, &ha->flags) ||
4148 test_bit(AF_LOOPBACK, &ha->flags) ||
4149 test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags) ||
4150 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags) ||
4151 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))
4152 goto qc_host_busy;
4153
4154 srb = qla4xxx_get_new_srb(ha, ddb_entry, cmd);
4155 if (!srb)
4156 goto qc_host_busy;
4157
4158 rval = qla4xxx_send_command_to_isp(ha, srb);
4159 if (rval != QLA_SUCCESS)
4160 goto qc_host_busy_free_sp;
4161
4162 return 0;
4163
4164 qc_host_busy_free_sp:
4165 qla4xxx_srb_free_dma(ha, srb);
4166 mempool_free(srb, ha->srb_mempool);
4167
4168 qc_host_busy:
4169 return SCSI_MLQUEUE_HOST_BUSY;
4170
4171 qc_fail_command:
4172 cmd->scsi_done(cmd);
4173
4174 return 0;
4175 }
4176
4177 /**
4178 * qla4xxx_mem_free - frees memory allocated to adapter
4179 * @ha: Pointer to host adapter structure.
4180 *
4181 * Frees memory previously allocated by qla4xxx_mem_alloc
4182 **/
qla4xxx_mem_free(struct scsi_qla_host *ha)4183 static void qla4xxx_mem_free(struct scsi_qla_host *ha)
4184 {
4185 if (ha->queues)
4186 dma_free_coherent(&ha->pdev->dev, ha->queues_len, ha->queues,
4187 ha->queues_dma);
4188
4189 if (ha->fw_dump)
4190 vfree(ha->fw_dump);
4191
4192 ha->queues_len = 0;
4193 ha->queues = NULL;
4194 ha->queues_dma = 0;
4195 ha->request_ring = NULL;
4196 ha->request_dma = 0;
4197 ha->response_ring = NULL;
4198 ha->response_dma = 0;
4199 ha->shadow_regs = NULL;
4200 ha->shadow_regs_dma = 0;
4201 ha->fw_dump = NULL;
4202 ha->fw_dump_size = 0;
4203
4204 /* Free srb pool. */
4205 mempool_destroy(ha->srb_mempool);
4206 ha->srb_mempool = NULL;
4207
4208 dma_pool_destroy(ha->chap_dma_pool);
4209
4210 if (ha->chap_list)
4211 vfree(ha->chap_list);
4212 ha->chap_list = NULL;
4213
4214 dma_pool_destroy(ha->fw_ddb_dma_pool);
4215
4216 /* release io space registers */
4217 if (is_qla8022(ha)) {
4218 if (ha->nx_pcibase)
4219 iounmap(
4220 (struct device_reg_82xx __iomem *)ha->nx_pcibase);
4221 } else if (is_qla8032(ha) || is_qla8042(ha)) {
4222 if (ha->nx_pcibase)
4223 iounmap(
4224 (struct device_reg_83xx __iomem *)ha->nx_pcibase);
4225 } else if (ha->reg) {
4226 iounmap(ha->reg);
4227 }
4228
4229 if (ha->reset_tmplt.buff)
4230 vfree(ha->reset_tmplt.buff);
4231
4232 pci_release_regions(ha->pdev);
4233 }
4234
4235 /**
4236 * qla4xxx_mem_alloc - allocates memory for use by adapter.
4237 * @ha: Pointer to host adapter structure
4238 *
4239 * Allocates DMA memory for request and response queues. Also allocates memory
4240 * for srbs.
4241 **/
qla4xxx_mem_alloc(struct scsi_qla_host *ha)4242 static int qla4xxx_mem_alloc(struct scsi_qla_host *ha)
4243 {
4244 unsigned long align;
4245
4246 /* Allocate contiguous block of DMA memory for queues. */
4247 ha->queues_len = ((REQUEST_QUEUE_DEPTH * QUEUE_SIZE) +
4248 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE) +
4249 sizeof(struct shadow_regs) +
4250 MEM_ALIGN_VALUE +
4251 (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
4252 ha->queues = dma_alloc_coherent(&ha->pdev->dev, ha->queues_len,
4253 &ha->queues_dma, GFP_KERNEL);
4254 if (ha->queues == NULL) {
4255 ql4_printk(KERN_WARNING, ha,
4256 "Memory Allocation failed - queues.\n");
4257
4258 goto mem_alloc_error_exit;
4259 }
4260
4261 /*
4262 * As per RISC alignment requirements -- the bus-address must be a
4263 * multiple of the request-ring size (in bytes).
4264 */
4265 align = 0;
4266 if ((unsigned long)ha->queues_dma & (MEM_ALIGN_VALUE - 1))
4267 align = MEM_ALIGN_VALUE - ((unsigned long)ha->queues_dma &
4268 (MEM_ALIGN_VALUE - 1));
4269
4270 /* Update request and response queue pointers. */
4271 ha->request_dma = ha->queues_dma + align;
4272 ha->request_ring = (struct queue_entry *) (ha->queues + align);
4273 ha->response_dma = ha->queues_dma + align +
4274 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE);
4275 ha->response_ring = (struct queue_entry *) (ha->queues + align +
4276 (REQUEST_QUEUE_DEPTH *
4277 QUEUE_SIZE));
4278 ha->shadow_regs_dma = ha->queues_dma + align +
4279 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE) +
4280 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE);
4281 ha->shadow_regs = (struct shadow_regs *) (ha->queues + align +
4282 (REQUEST_QUEUE_DEPTH *
4283 QUEUE_SIZE) +
4284 (RESPONSE_QUEUE_DEPTH *
4285 QUEUE_SIZE));
4286
4287 /* Allocate memory for srb pool. */
4288 ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab,
4289 mempool_free_slab, srb_cachep);
4290 if (ha->srb_mempool == NULL) {
4291 ql4_printk(KERN_WARNING, ha,
4292 "Memory Allocation failed - SRB Pool.\n");
4293
4294 goto mem_alloc_error_exit;
4295 }
4296
4297 ha->chap_dma_pool = dma_pool_create("ql4_chap", &ha->pdev->dev,
4298 CHAP_DMA_BLOCK_SIZE, 8, 0);
4299
4300 if (ha->chap_dma_pool == NULL) {
4301 ql4_printk(KERN_WARNING, ha,
4302 "%s: chap_dma_pool allocation failed..\n", __func__);
4303 goto mem_alloc_error_exit;
4304 }
4305
4306 ha->fw_ddb_dma_pool = dma_pool_create("ql4_fw_ddb", &ha->pdev->dev,
4307 DDB_DMA_BLOCK_SIZE, 8, 0);
4308
4309 if (ha->fw_ddb_dma_pool == NULL) {
4310 ql4_printk(KERN_WARNING, ha,
4311 "%s: fw_ddb_dma_pool allocation failed..\n",
4312 __func__);
4313 goto mem_alloc_error_exit;
4314 }
4315
4316 return QLA_SUCCESS;
4317
4318 mem_alloc_error_exit:
4319 return QLA_ERROR;
4320 }
4321
4322 /**
4323 * qla4_8xxx_check_temp - Check the ISP82XX temperature.
4324 * @ha: adapter block pointer.
4325 *
4326 * Note: The caller should not hold the idc lock.
4327 **/
qla4_8xxx_check_temp(struct scsi_qla_host *ha)4328 static int qla4_8xxx_check_temp(struct scsi_qla_host *ha)
4329 {
4330 uint32_t temp, temp_state, temp_val;
4331 int status = QLA_SUCCESS;
4332
4333 temp = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_TEMP_STATE);
4334
4335 temp_state = qla82xx_get_temp_state(temp);
4336 temp_val = qla82xx_get_temp_val(temp);
4337
4338 if (temp_state == QLA82XX_TEMP_PANIC) {
4339 ql4_printk(KERN_WARNING, ha, "Device temperature %d degrees C"
4340 " exceeds maximum allowed. Hardware has been shut"
4341 " down.\n", temp_val);
4342 status = QLA_ERROR;
4343 } else if (temp_state == QLA82XX_TEMP_WARN) {
4344 if (ha->temperature == QLA82XX_TEMP_NORMAL)
4345 ql4_printk(KERN_WARNING, ha, "Device temperature %d"
4346 " degrees C exceeds operating range."
4347 " Immediate action needed.\n", temp_val);
4348 } else {
4349 if (ha->temperature == QLA82XX_TEMP_WARN)
4350 ql4_printk(KERN_INFO, ha, "Device temperature is"
4351 " now %d degrees C in normal range.\n",
4352 temp_val);
4353 }
4354 ha->temperature = temp_state;
4355 return status;
4356 }
4357
4358 /**
4359 * qla4_8xxx_check_fw_alive - Check firmware health
4360 * @ha: Pointer to host adapter structure.
4361 *
4362 * Context: Interrupt
4363 **/
qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha)4364 static int qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha)
4365 {
4366 uint32_t fw_heartbeat_counter;
4367 int status = QLA_SUCCESS;
4368
4369 fw_heartbeat_counter = qla4_8xxx_rd_direct(ha,
4370 QLA8XXX_PEG_ALIVE_COUNTER);
4371 /* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */
4372 if (fw_heartbeat_counter == 0xffffffff) {
4373 DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Device in frozen "
4374 "state, QLA82XX_PEG_ALIVE_COUNTER is 0xffffffff\n",
4375 ha->host_no, __func__));
4376 return status;
4377 }
4378
4379 if (ha->fw_heartbeat_counter == fw_heartbeat_counter) {
4380 ha->seconds_since_last_heartbeat++;
4381 /* FW not alive after 2 seconds */
4382 if (ha->seconds_since_last_heartbeat == 2) {
4383 ha->seconds_since_last_heartbeat = 0;
4384 qla4_8xxx_dump_peg_reg(ha);
4385 status = QLA_ERROR;
4386 }
4387 } else
4388 ha->seconds_since_last_heartbeat = 0;
4389
4390 ha->fw_heartbeat_counter = fw_heartbeat_counter;
4391 return status;
4392 }
4393
qla4_8xxx_process_fw_error(struct scsi_qla_host *ha)4394 static void qla4_8xxx_process_fw_error(struct scsi_qla_host *ha)
4395 {
4396 uint32_t halt_status;
4397 int halt_status_unrecoverable = 0;
4398
4399 halt_status = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_HALT_STATUS1);
4400
4401 if (is_qla8022(ha)) {
4402 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
4403 __func__);
4404 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
4405 CRB_NIU_XG_PAUSE_CTL_P0 |
4406 CRB_NIU_XG_PAUSE_CTL_P1);
4407
4408 if (QLA82XX_FWERROR_CODE(halt_status) == 0x67)
4409 ql4_printk(KERN_ERR, ha, "%s: Firmware aborted with error code 0x00006700. Device is being reset\n",
4410 __func__);
4411 if (halt_status & HALT_STATUS_UNRECOVERABLE)
4412 halt_status_unrecoverable = 1;
4413 } else if (is_qla8032(ha) || is_qla8042(ha)) {
4414 if (halt_status & QLA83XX_HALT_STATUS_FW_RESET)
4415 ql4_printk(KERN_ERR, ha, "%s: Firmware error detected device is being reset\n",
4416 __func__);
4417 else if (halt_status & QLA83XX_HALT_STATUS_UNRECOVERABLE)
4418 halt_status_unrecoverable = 1;
4419 }
4420
4421 /*
4422 * Since we cannot change dev_state in interrupt context,
4423 * set appropriate DPC flag then wakeup DPC
4424 */
4425 if (halt_status_unrecoverable) {
4426 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags);
4427 } else {
4428 ql4_printk(KERN_INFO, ha, "%s: detect abort needed!\n",
4429 __func__);
4430 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4431 }
4432 qla4xxx_mailbox_premature_completion(ha);
4433 qla4xxx_wake_dpc(ha);
4434 }
4435
4436 /**
4437 * qla4_8xxx_watchdog - Poll dev state
4438 * @ha: Pointer to host adapter structure.
4439 *
4440 * Context: Interrupt
4441 **/
qla4_8xxx_watchdog(struct scsi_qla_host *ha)4442 void qla4_8xxx_watchdog(struct scsi_qla_host *ha)
4443 {
4444 uint32_t dev_state;
4445 uint32_t idc_ctrl;
4446
4447 if (is_qla8032(ha) &&
4448 (qla4_83xx_is_detached(ha) == QLA_SUCCESS))
4449 WARN_ONCE(1, "%s: iSCSI function %d marked invisible\n",
4450 __func__, ha->func_num);
4451
4452 /* don't poll if reset is going on */
4453 if (!(test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) ||
4454 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
4455 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags))) {
4456 dev_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE);
4457
4458 if (qla4_8xxx_check_temp(ha)) {
4459 if (is_qla8022(ha)) {
4460 ql4_printk(KERN_INFO, ha, "disabling pause transmit on port 0 & 1.\n");
4461 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
4462 CRB_NIU_XG_PAUSE_CTL_P0 |
4463 CRB_NIU_XG_PAUSE_CTL_P1);
4464 }
4465 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags);
4466 qla4xxx_wake_dpc(ha);
4467 } else if (dev_state == QLA8XXX_DEV_NEED_RESET &&
4468 !test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
4469
4470 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED RESET!\n",
4471 __func__);
4472
4473 if (is_qla8032(ha) || is_qla8042(ha)) {
4474 idc_ctrl = qla4_83xx_rd_reg(ha,
4475 QLA83XX_IDC_DRV_CTRL);
4476 if (!(idc_ctrl & GRACEFUL_RESET_BIT1)) {
4477 ql4_printk(KERN_INFO, ha, "%s: Graceful reset bit is not set\n",
4478 __func__);
4479 qla4xxx_mailbox_premature_completion(
4480 ha);
4481 }
4482 }
4483
4484 if ((is_qla8032(ha) || is_qla8042(ha)) ||
4485 (is_qla8022(ha) && !ql4xdontresethba)) {
4486 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4487 qla4xxx_wake_dpc(ha);
4488 }
4489 } else if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT &&
4490 !test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) {
4491 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED QUIES!\n",
4492 __func__);
4493 set_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags);
4494 qla4xxx_wake_dpc(ha);
4495 } else {
4496 /* Check firmware health */
4497 if (qla4_8xxx_check_fw_alive(ha))
4498 qla4_8xxx_process_fw_error(ha);
4499 }
4500 }
4501 }
4502
qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)4503 static void qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)
4504 {
4505 struct iscsi_session *sess;
4506 struct ddb_entry *ddb_entry;
4507 struct scsi_qla_host *ha;
4508
4509 sess = cls_sess->dd_data;
4510 ddb_entry = sess->dd_data;
4511 ha = ddb_entry->ha;
4512
4513 if (!(ddb_entry->ddb_type == FLASH_DDB))
4514 return;
4515
4516 if (adapter_up(ha) && !test_bit(DF_RELOGIN, &ddb_entry->flags) &&
4517 !iscsi_is_session_online(cls_sess)) {
4518 if (atomic_read(&ddb_entry->retry_relogin_timer) !=
4519 INVALID_ENTRY) {
4520 if (atomic_read(&ddb_entry->retry_relogin_timer) ==
4521 0) {
4522 atomic_set(&ddb_entry->retry_relogin_timer,
4523 INVALID_ENTRY);
4524 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
4525 set_bit(DF_RELOGIN, &ddb_entry->flags);
4526 DEBUG2(ql4_printk(KERN_INFO, ha,
4527 "%s: index [%d] login device\n",
4528 __func__, ddb_entry->fw_ddb_index));
4529 } else
4530 atomic_dec(&ddb_entry->retry_relogin_timer);
4531 }
4532 }
4533
4534 /* Wait for relogin to timeout */
4535 if (atomic_read(&ddb_entry->relogin_timer) &&
4536 (atomic_dec_and_test(&ddb_entry->relogin_timer) != 0)) {
4537 /*
4538 * If the relogin times out and the device is
4539 * still NOT ONLINE then try and relogin again.
4540 */
4541 if (!iscsi_is_session_online(cls_sess)) {
4542 /* Reset retry relogin timer */
4543 atomic_inc(&ddb_entry->relogin_retry_count);
4544 DEBUG2(ql4_printk(KERN_INFO, ha,
4545 "%s: index[%d] relogin timed out-retrying"
4546 " relogin (%d), retry (%d)\n", __func__,
4547 ddb_entry->fw_ddb_index,
4548 atomic_read(&ddb_entry->relogin_retry_count),
4549 ddb_entry->default_time2wait + 4));
4550 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
4551 atomic_set(&ddb_entry->retry_relogin_timer,
4552 ddb_entry->default_time2wait + 4);
4553 }
4554 }
4555 }
4556
4557 /**
4558 * qla4xxx_timer - checks every second for work to do.
4559 * @t: Context to obtain pointer to host adapter structure.
4560 **/
qla4xxx_timer(struct timer_list *t)4561 static void qla4xxx_timer(struct timer_list *t)
4562 {
4563 struct scsi_qla_host *ha = from_timer(ha, t, timer);
4564 int start_dpc = 0;
4565 uint16_t w;
4566
4567 iscsi_host_for_each_session(ha->host, qla4xxx_check_relogin_flash_ddb);
4568
4569 /* If we are in the middle of AER/EEH processing
4570 * skip any processing and reschedule the timer
4571 */
4572 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
4573 mod_timer(&ha->timer, jiffies + HZ);
4574 return;
4575 }
4576
4577 /* Hardware read to trigger an EEH error during mailbox waits. */
4578 if (!pci_channel_offline(ha->pdev))
4579 pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
4580
4581 if (is_qla80XX(ha))
4582 qla4_8xxx_watchdog(ha);
4583
4584 if (is_qla40XX(ha)) {
4585 /* Check for heartbeat interval. */
4586 if (ha->firmware_options & FWOPT_HEARTBEAT_ENABLE &&
4587 ha->heartbeat_interval != 0) {
4588 ha->seconds_since_last_heartbeat++;
4589 if (ha->seconds_since_last_heartbeat >
4590 ha->heartbeat_interval + 2)
4591 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4592 }
4593 }
4594
4595 /* Process any deferred work. */
4596 if (!list_empty(&ha->work_list))
4597 start_dpc++;
4598
4599 /* Wakeup the dpc routine for this adapter, if needed. */
4600 if (start_dpc ||
4601 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
4602 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags) ||
4603 test_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags) ||
4604 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) ||
4605 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
4606 test_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags) ||
4607 test_bit(DPC_LINK_CHANGED, &ha->dpc_flags) ||
4608 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) ||
4609 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) ||
4610 test_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags) ||
4611 test_bit(DPC_AEN, &ha->dpc_flags)) {
4612 DEBUG2(printk("scsi%ld: %s: scheduling dpc routine"
4613 " - dpc flags = 0x%lx\n",
4614 ha->host_no, __func__, ha->dpc_flags));
4615 qla4xxx_wake_dpc(ha);
4616 }
4617
4618 /* Reschedule timer thread to call us back in one second */
4619 mod_timer(&ha->timer, jiffies + HZ);
4620
4621 DEBUG2(ha->seconds_since_last_intr++);
4622 }
4623
4624 /**
4625 * qla4xxx_cmd_wait - waits for all outstanding commands to complete
4626 * @ha: Pointer to host adapter structure.
4627 *
4628 * This routine stalls the driver until all outstanding commands are returned.
4629 * Caller must release the Hardware Lock prior to calling this routine.
4630 **/
qla4xxx_cmd_wait(struct scsi_qla_host *ha)4631 static int qla4xxx_cmd_wait(struct scsi_qla_host *ha)
4632 {
4633 uint32_t index = 0;
4634 unsigned long flags;
4635 struct scsi_cmnd *cmd;
4636 unsigned long wtime;
4637 uint32_t wtmo;
4638
4639 if (is_qla40XX(ha))
4640 wtmo = WAIT_CMD_TOV;
4641 else
4642 wtmo = ha->nx_reset_timeout / 2;
4643
4644 wtime = jiffies + (wtmo * HZ);
4645
4646 DEBUG2(ql4_printk(KERN_INFO, ha,
4647 "Wait up to %u seconds for cmds to complete\n",
4648 wtmo));
4649
4650 while (!time_after_eq(jiffies, wtime)) {
4651 spin_lock_irqsave(&ha->hardware_lock, flags);
4652 /* Find a command that hasn't completed. */
4653 for (index = 0; index < ha->host->can_queue; index++) {
4654 cmd = scsi_host_find_tag(ha->host, index);
4655 /*
4656 * We cannot just check if the index is valid,
4657 * becase if we are run from the scsi eh, then
4658 * the scsi/block layer is going to prevent
4659 * the tag from being released.
4660 */
4661 if (cmd != NULL && CMD_SP(cmd))
4662 break;
4663 }
4664 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4665
4666 /* If No Commands are pending, wait is complete */
4667 if (index == ha->host->can_queue)
4668 return QLA_SUCCESS;
4669
4670 msleep(1000);
4671 }
4672 /* If we timed out on waiting for commands to come back
4673 * return ERROR. */
4674 return QLA_ERROR;
4675 }
4676
qla4xxx_hw_reset(struct scsi_qla_host *ha)4677 int qla4xxx_hw_reset(struct scsi_qla_host *ha)
4678 {
4679 uint32_t ctrl_status;
4680 unsigned long flags = 0;
4681
4682 DEBUG2(printk(KERN_ERR "scsi%ld: %s\n", ha->host_no, __func__));
4683
4684 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS)
4685 return QLA_ERROR;
4686
4687 spin_lock_irqsave(&ha->hardware_lock, flags);
4688
4689 /*
4690 * If the SCSI Reset Interrupt bit is set, clear it.
4691 * Otherwise, the Soft Reset won't work.
4692 */
4693 ctrl_status = readw(&ha->reg->ctrl_status);
4694 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0)
4695 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status);
4696
4697 /* Issue Soft Reset */
4698 writel(set_rmask(CSR_SOFT_RESET), &ha->reg->ctrl_status);
4699 readl(&ha->reg->ctrl_status);
4700
4701 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4702 return QLA_SUCCESS;
4703 }
4704
4705 /**
4706 * qla4xxx_soft_reset - performs soft reset.
4707 * @ha: Pointer to host adapter structure.
4708 **/
qla4xxx_soft_reset(struct scsi_qla_host *ha)4709 int qla4xxx_soft_reset(struct scsi_qla_host *ha)
4710 {
4711 uint32_t max_wait_time;
4712 unsigned long flags = 0;
4713 int status;
4714 uint32_t ctrl_status;
4715
4716 status = qla4xxx_hw_reset(ha);
4717 if (status != QLA_SUCCESS)
4718 return status;
4719
4720 status = QLA_ERROR;
4721 /* Wait until the Network Reset Intr bit is cleared */
4722 max_wait_time = RESET_INTR_TOV;
4723 do {
4724 spin_lock_irqsave(&ha->hardware_lock, flags);
4725 ctrl_status = readw(&ha->reg->ctrl_status);
4726 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4727
4728 if ((ctrl_status & CSR_NET_RESET_INTR) == 0)
4729 break;
4730
4731 msleep(1000);
4732 } while ((--max_wait_time));
4733
4734 if ((ctrl_status & CSR_NET_RESET_INTR) != 0) {
4735 DEBUG2(printk(KERN_WARNING
4736 "scsi%ld: Network Reset Intr not cleared by "
4737 "Network function, clearing it now!\n",
4738 ha->host_no));
4739 spin_lock_irqsave(&ha->hardware_lock, flags);
4740 writel(set_rmask(CSR_NET_RESET_INTR), &ha->reg->ctrl_status);
4741 readl(&ha->reg->ctrl_status);
4742 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4743 }
4744
4745 /* Wait until the firmware tells us the Soft Reset is done */
4746 max_wait_time = SOFT_RESET_TOV;
4747 do {
4748 spin_lock_irqsave(&ha->hardware_lock, flags);
4749 ctrl_status = readw(&ha->reg->ctrl_status);
4750 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4751
4752 if ((ctrl_status & CSR_SOFT_RESET) == 0) {
4753 status = QLA_SUCCESS;
4754 break;
4755 }
4756
4757 msleep(1000);
4758 } while ((--max_wait_time));
4759
4760 /*
4761 * Also, make sure that the SCSI Reset Interrupt bit has been cleared
4762 * after the soft reset has taken place.
4763 */
4764 spin_lock_irqsave(&ha->hardware_lock, flags);
4765 ctrl_status = readw(&ha->reg->ctrl_status);
4766 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) {
4767 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status);
4768 readl(&ha->reg->ctrl_status);
4769 }
4770 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4771
4772 /* If soft reset fails then most probably the bios on other
4773 * function is also enabled.
4774 * Since the initialization is sequential the other fn
4775 * wont be able to acknowledge the soft reset.
4776 * Issue a force soft reset to workaround this scenario.
4777 */
4778 if (max_wait_time == 0) {
4779 /* Issue Force Soft Reset */
4780 spin_lock_irqsave(&ha->hardware_lock, flags);
4781 writel(set_rmask(CSR_FORCE_SOFT_RESET), &ha->reg->ctrl_status);
4782 readl(&ha->reg->ctrl_status);
4783 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4784 /* Wait until the firmware tells us the Soft Reset is done */
4785 max_wait_time = SOFT_RESET_TOV;
4786 do {
4787 spin_lock_irqsave(&ha->hardware_lock, flags);
4788 ctrl_status = readw(&ha->reg->ctrl_status);
4789 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4790
4791 if ((ctrl_status & CSR_FORCE_SOFT_RESET) == 0) {
4792 status = QLA_SUCCESS;
4793 break;
4794 }
4795
4796 msleep(1000);
4797 } while ((--max_wait_time));
4798 }
4799
4800 return status;
4801 }
4802
4803 /**
4804 * qla4xxx_abort_active_cmds - returns all outstanding i/o requests to O.S.
4805 * @ha: Pointer to host adapter structure.
4806 * @res: returned scsi status
4807 *
4808 * This routine is called just prior to a HARD RESET to return all
4809 * outstanding commands back to the Operating System.
4810 * Caller should make sure that the following locks are released
4811 * before this calling routine: Hardware lock, and io_request_lock.
4812 **/
qla4xxx_abort_active_cmds(struct scsi_qla_host *ha, int res)4813 static void qla4xxx_abort_active_cmds(struct scsi_qla_host *ha, int res)
4814 {
4815 struct srb *srb;
4816 int i;
4817 unsigned long flags;
4818
4819 spin_lock_irqsave(&ha->hardware_lock, flags);
4820 for (i = 0; i < ha->host->can_queue; i++) {
4821 srb = qla4xxx_del_from_active_array(ha, i);
4822 if (srb != NULL) {
4823 srb->cmd->result = res;
4824 kref_put(&srb->srb_ref, qla4xxx_srb_compl);
4825 }
4826 }
4827 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4828 }
4829
qla4xxx_dead_adapter_cleanup(struct scsi_qla_host *ha)4830 void qla4xxx_dead_adapter_cleanup(struct scsi_qla_host *ha)
4831 {
4832 clear_bit(AF_ONLINE, &ha->flags);
4833
4834 /* Disable the board */
4835 ql4_printk(KERN_INFO, ha, "Disabling the board\n");
4836
4837 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
4838 qla4xxx_mark_all_devices_missing(ha);
4839 clear_bit(AF_INIT_DONE, &ha->flags);
4840 }
4841
qla4xxx_fail_session(struct iscsi_cls_session *cls_session)4842 static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session)
4843 {
4844 struct iscsi_session *sess;
4845 struct ddb_entry *ddb_entry;
4846
4847 sess = cls_session->dd_data;
4848 ddb_entry = sess->dd_data;
4849 ddb_entry->fw_ddb_device_state = DDB_DS_SESSION_FAILED;
4850
4851 if (ddb_entry->ddb_type == FLASH_DDB)
4852 iscsi_block_session(ddb_entry->sess);
4853 else
4854 iscsi_session_failure(cls_session->dd_data,
4855 ISCSI_ERR_CONN_FAILED);
4856 }
4857
4858 /**
4859 * qla4xxx_recover_adapter - recovers adapter after a fatal error
4860 * @ha: Pointer to host adapter structure.
4861 **/
qla4xxx_recover_adapter(struct scsi_qla_host *ha)4862 static int qla4xxx_recover_adapter(struct scsi_qla_host *ha)
4863 {
4864 int status = QLA_ERROR;
4865 uint8_t reset_chip = 0;
4866 uint32_t dev_state;
4867 unsigned long wait;
4868
4869 /* Stall incoming I/O until we are done */
4870 scsi_block_requests(ha->host);
4871 clear_bit(AF_ONLINE, &ha->flags);
4872 clear_bit(AF_LINK_UP, &ha->flags);
4873
4874 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: adapter OFFLINE\n", __func__));
4875
4876 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
4877
4878 if ((is_qla8032(ha) || is_qla8042(ha)) &&
4879 !test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) {
4880 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
4881 __func__);
4882 /* disable pause frame for ISP83xx */
4883 qla4_83xx_disable_pause(ha);
4884 }
4885
4886 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session);
4887
4888 if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
4889 reset_chip = 1;
4890
4891 /* For the DPC_RESET_HA_INTR case (ISP-4xxx specific)
4892 * do not reset adapter, jump to initialize_adapter */
4893 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
4894 status = QLA_SUCCESS;
4895 goto recover_ha_init_adapter;
4896 }
4897
4898 /* For the ISP-8xxx adapter, issue a stop_firmware if invoked
4899 * from eh_host_reset or ioctl module */
4900 if (is_qla80XX(ha) && !reset_chip &&
4901 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) {
4902
4903 DEBUG2(ql4_printk(KERN_INFO, ha,
4904 "scsi%ld: %s - Performing stop_firmware...\n",
4905 ha->host_no, __func__));
4906 status = ha->isp_ops->reset_firmware(ha);
4907 if (status == QLA_SUCCESS) {
4908 ha->isp_ops->disable_intrs(ha);
4909 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
4910 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
4911 } else {
4912 /* If the stop_firmware fails then
4913 * reset the entire chip */
4914 reset_chip = 1;
4915 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
4916 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4917 }
4918 }
4919
4920 /* Issue full chip reset if recovering from a catastrophic error,
4921 * or if stop_firmware fails for ISP-8xxx.
4922 * This is the default case for ISP-4xxx */
4923 if (is_qla40XX(ha) || reset_chip) {
4924 if (is_qla40XX(ha))
4925 goto chip_reset;
4926
4927 /* Check if 8XXX firmware is alive or not
4928 * We may have arrived here from NEED_RESET
4929 * detection only */
4930 if (test_bit(AF_FW_RECOVERY, &ha->flags))
4931 goto chip_reset;
4932
4933 wait = jiffies + (FW_ALIVE_WAIT_TOV * HZ);
4934 while (time_before(jiffies, wait)) {
4935 if (qla4_8xxx_check_fw_alive(ha)) {
4936 qla4xxx_mailbox_premature_completion(ha);
4937 break;
4938 }
4939
4940 set_current_state(TASK_UNINTERRUPTIBLE);
4941 schedule_timeout(HZ);
4942 }
4943 chip_reset:
4944 if (!test_bit(AF_FW_RECOVERY, &ha->flags))
4945 qla4xxx_cmd_wait(ha);
4946
4947 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
4948 DEBUG2(ql4_printk(KERN_INFO, ha,
4949 "scsi%ld: %s - Performing chip reset..\n",
4950 ha->host_no, __func__));
4951 status = ha->isp_ops->reset_chip(ha);
4952 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
4953 }
4954
4955 /* Flush any pending ddb changed AENs */
4956 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
4957
4958 recover_ha_init_adapter:
4959 /* Upon successful firmware/chip reset, re-initialize the adapter */
4960 if (status == QLA_SUCCESS) {
4961 /* For ISP-4xxx, force function 1 to always initialize
4962 * before function 3 to prevent both funcions from
4963 * stepping on top of the other */
4964 if (is_qla40XX(ha) && (ha->mac_index == 3))
4965 ssleep(6);
4966
4967 /* NOTE: AF_ONLINE flag set upon successful completion of
4968 * qla4xxx_initialize_adapter */
4969 status = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
4970 if (is_qla80XX(ha) && (status == QLA_ERROR)) {
4971 status = qla4_8xxx_check_init_adapter_retry(ha);
4972 if (status == QLA_ERROR) {
4973 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Don't retry recover adapter\n",
4974 ha->host_no, __func__);
4975 qla4xxx_dead_adapter_cleanup(ha);
4976 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
4977 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
4978 clear_bit(DPC_RESET_HA_FW_CONTEXT,
4979 &ha->dpc_flags);
4980 goto exit_recover;
4981 }
4982 }
4983 }
4984
4985 /* Retry failed adapter initialization, if necessary
4986 * Do not retry initialize_adapter for RESET_HA_INTR (ISP-4xxx specific)
4987 * case to prevent ping-pong resets between functions */
4988 if (!test_bit(AF_ONLINE, &ha->flags) &&
4989 !test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
4990 /* Adapter initialization failed, see if we can retry
4991 * resetting the ha.
4992 * Since we don't want to block the DPC for too long
4993 * with multiple resets in the same thread,
4994 * utilize DPC to retry */
4995 if (is_qla80XX(ha)) {
4996 ha->isp_ops->idc_lock(ha);
4997 dev_state = qla4_8xxx_rd_direct(ha,
4998 QLA8XXX_CRB_DEV_STATE);
4999 ha->isp_ops->idc_unlock(ha);
5000 if (dev_state == QLA8XXX_DEV_FAILED) {
5001 ql4_printk(KERN_INFO, ha, "%s: don't retry "
5002 "recover adapter. H/W is in Failed "
5003 "state\n", __func__);
5004 qla4xxx_dead_adapter_cleanup(ha);
5005 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
5006 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
5007 clear_bit(DPC_RESET_HA_FW_CONTEXT,
5008 &ha->dpc_flags);
5009 status = QLA_ERROR;
5010
5011 goto exit_recover;
5012 }
5013 }
5014
5015 if (!test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags)) {
5016 ha->retry_reset_ha_cnt = MAX_RESET_HA_RETRIES;
5017 DEBUG2(printk("scsi%ld: recover adapter - retrying "
5018 "(%d) more times\n", ha->host_no,
5019 ha->retry_reset_ha_cnt));
5020 set_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
5021 status = QLA_ERROR;
5022 } else {
5023 if (ha->retry_reset_ha_cnt > 0) {
5024 /* Schedule another Reset HA--DPC will retry */
5025 ha->retry_reset_ha_cnt--;
5026 DEBUG2(printk("scsi%ld: recover adapter - "
5027 "retry remaining %d\n",
5028 ha->host_no,
5029 ha->retry_reset_ha_cnt));
5030 status = QLA_ERROR;
5031 }
5032
5033 if (ha->retry_reset_ha_cnt == 0) {
5034 /* Recover adapter retries have been exhausted.
5035 * Adapter DEAD */
5036 DEBUG2(printk("scsi%ld: recover adapter "
5037 "failed - board disabled\n",
5038 ha->host_no));
5039 qla4xxx_dead_adapter_cleanup(ha);
5040 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
5041 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
5042 clear_bit(DPC_RESET_HA_FW_CONTEXT,
5043 &ha->dpc_flags);
5044 status = QLA_ERROR;
5045 }
5046 }
5047 } else {
5048 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
5049 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
5050 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
5051 }
5052
5053 exit_recover:
5054 ha->adapter_error_count++;
5055
5056 if (test_bit(AF_ONLINE, &ha->flags))
5057 ha->isp_ops->enable_intrs(ha);
5058
5059 scsi_unblock_requests(ha->host);
5060
5061 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
5062 DEBUG2(printk("scsi%ld: recover adapter: %s\n", ha->host_no,
5063 status == QLA_ERROR ? "FAILED" : "SUCCEEDED"));
5064
5065 return status;
5066 }
5067
qla4xxx_relogin_devices(struct iscsi_cls_session *cls_session)5068 static void qla4xxx_relogin_devices(struct iscsi_cls_session *cls_session)
5069 {
5070 struct iscsi_session *sess;
5071 struct ddb_entry *ddb_entry;
5072 struct scsi_qla_host *ha;
5073
5074 sess = cls_session->dd_data;
5075 ddb_entry = sess->dd_data;
5076 ha = ddb_entry->ha;
5077 if (!iscsi_is_session_online(cls_session)) {
5078 if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) {
5079 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5080 " unblock session\n", ha->host_no, __func__,
5081 ddb_entry->fw_ddb_index);
5082 iscsi_unblock_session(ddb_entry->sess);
5083 } else {
5084 /* Trigger relogin */
5085 if (ddb_entry->ddb_type == FLASH_DDB) {
5086 if (!(test_bit(DF_RELOGIN, &ddb_entry->flags) ||
5087 test_bit(DF_DISABLE_RELOGIN,
5088 &ddb_entry->flags)))
5089 qla4xxx_arm_relogin_timer(ddb_entry);
5090 } else
5091 iscsi_session_failure(cls_session->dd_data,
5092 ISCSI_ERR_CONN_FAILED);
5093 }
5094 }
5095 }
5096
qla4xxx_unblock_flash_ddb(struct iscsi_cls_session *cls_session)5097 int qla4xxx_unblock_flash_ddb(struct iscsi_cls_session *cls_session)
5098 {
5099 struct iscsi_session *sess;
5100 struct ddb_entry *ddb_entry;
5101 struct scsi_qla_host *ha;
5102
5103 sess = cls_session->dd_data;
5104 ddb_entry = sess->dd_data;
5105 ha = ddb_entry->ha;
5106 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5107 " unblock session\n", ha->host_no, __func__,
5108 ddb_entry->fw_ddb_index);
5109
5110 iscsi_unblock_session(ddb_entry->sess);
5111
5112 /* Start scan target */
5113 if (test_bit(AF_ONLINE, &ha->flags)) {
5114 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5115 " start scan\n", ha->host_no, __func__,
5116 ddb_entry->fw_ddb_index);
5117 scsi_queue_work(ha->host, &ddb_entry->sess->scan_work);
5118 }
5119 return QLA_SUCCESS;
5120 }
5121
qla4xxx_unblock_ddb(struct iscsi_cls_session *cls_session)5122 int qla4xxx_unblock_ddb(struct iscsi_cls_session *cls_session)
5123 {
5124 struct iscsi_session *sess;
5125 struct ddb_entry *ddb_entry;
5126 struct scsi_qla_host *ha;
5127 int status = QLA_SUCCESS;
5128
5129 sess = cls_session->dd_data;
5130 ddb_entry = sess->dd_data;
5131 ha = ddb_entry->ha;
5132 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5133 " unblock user space session\n", ha->host_no, __func__,
5134 ddb_entry->fw_ddb_index);
5135
5136 if (!iscsi_is_session_online(cls_session)) {
5137 iscsi_conn_start(ddb_entry->conn);
5138 iscsi_conn_login_event(ddb_entry->conn,
5139 ISCSI_CONN_STATE_LOGGED_IN);
5140 } else {
5141 ql4_printk(KERN_INFO, ha,
5142 "scsi%ld: %s: ddb[%d] session [%d] already logged in\n",
5143 ha->host_no, __func__, ddb_entry->fw_ddb_index,
5144 cls_session->sid);
5145 status = QLA_ERROR;
5146 }
5147
5148 return status;
5149 }
5150
qla4xxx_relogin_all_devices(struct scsi_qla_host *ha)5151 static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha)
5152 {
5153 iscsi_host_for_each_session(ha->host, qla4xxx_relogin_devices);
5154 }
5155
qla4xxx_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)5156 static void qla4xxx_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)
5157 {
5158 uint16_t relogin_timer;
5159 struct iscsi_session *sess;
5160 struct ddb_entry *ddb_entry;
5161 struct scsi_qla_host *ha;
5162
5163 sess = cls_sess->dd_data;
5164 ddb_entry = sess->dd_data;
5165 ha = ddb_entry->ha;
5166
5167 relogin_timer = max(ddb_entry->default_relogin_timeout,
5168 (uint16_t)RELOGIN_TOV);
5169 atomic_set(&ddb_entry->relogin_timer, relogin_timer);
5170
5171 DEBUG2(ql4_printk(KERN_INFO, ha,
5172 "scsi%ld: Relogin index [%d]. TOV=%d\n", ha->host_no,
5173 ddb_entry->fw_ddb_index, relogin_timer));
5174
5175 qla4xxx_login_flash_ddb(cls_sess);
5176 }
5177
qla4xxx_dpc_relogin(struct iscsi_cls_session *cls_sess)5178 static void qla4xxx_dpc_relogin(struct iscsi_cls_session *cls_sess)
5179 {
5180 struct iscsi_session *sess;
5181 struct ddb_entry *ddb_entry;
5182 struct scsi_qla_host *ha;
5183
5184 sess = cls_sess->dd_data;
5185 ddb_entry = sess->dd_data;
5186 ha = ddb_entry->ha;
5187
5188 if (!(ddb_entry->ddb_type == FLASH_DDB))
5189 return;
5190
5191 if (test_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags))
5192 return;
5193
5194 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags) &&
5195 !iscsi_is_session_online(cls_sess)) {
5196 DEBUG2(ql4_printk(KERN_INFO, ha,
5197 "relogin issued\n"));
5198 qla4xxx_relogin_flash_ddb(cls_sess);
5199 }
5200 }
5201
qla4xxx_wake_dpc(struct scsi_qla_host *ha)5202 void qla4xxx_wake_dpc(struct scsi_qla_host *ha)
5203 {
5204 if (ha->dpc_thread)
5205 queue_work(ha->dpc_thread, &ha->dpc_work);
5206 }
5207
5208 static struct qla4_work_evt *
qla4xxx_alloc_work(struct scsi_qla_host *ha, uint32_t data_size, enum qla4_work_type type)5209 qla4xxx_alloc_work(struct scsi_qla_host *ha, uint32_t data_size,
5210 enum qla4_work_type type)
5211 {
5212 struct qla4_work_evt *e;
5213 uint32_t size = sizeof(struct qla4_work_evt) + data_size;
5214
5215 e = kzalloc(size, GFP_ATOMIC);
5216 if (!e)
5217 return NULL;
5218
5219 INIT_LIST_HEAD(&e->list);
5220 e->type = type;
5221 return e;
5222 }
5223
qla4xxx_post_work(struct scsi_qla_host *ha, struct qla4_work_evt *e)5224 static void qla4xxx_post_work(struct scsi_qla_host *ha,
5225 struct qla4_work_evt *e)
5226 {
5227 unsigned long flags;
5228
5229 spin_lock_irqsave(&ha->work_lock, flags);
5230 list_add_tail(&e->list, &ha->work_list);
5231 spin_unlock_irqrestore(&ha->work_lock, flags);
5232 qla4xxx_wake_dpc(ha);
5233 }
5234
qla4xxx_post_aen_work(struct scsi_qla_host *ha, enum iscsi_host_event_code aen_code, uint32_t data_size, uint8_t *data)5235 int qla4xxx_post_aen_work(struct scsi_qla_host *ha,
5236 enum iscsi_host_event_code aen_code,
5237 uint32_t data_size, uint8_t *data)
5238 {
5239 struct qla4_work_evt *e;
5240
5241 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_AEN);
5242 if (!e)
5243 return QLA_ERROR;
5244
5245 e->u.aen.code = aen_code;
5246 e->u.aen.data_size = data_size;
5247 memcpy(e->u.aen.data, data, data_size);
5248
5249 qla4xxx_post_work(ha, e);
5250
5251 return QLA_SUCCESS;
5252 }
5253
qla4xxx_post_ping_evt_work(struct scsi_qla_host *ha, uint32_t status, uint32_t pid, uint32_t data_size, uint8_t *data)5254 int qla4xxx_post_ping_evt_work(struct scsi_qla_host *ha,
5255 uint32_t status, uint32_t pid,
5256 uint32_t data_size, uint8_t *data)
5257 {
5258 struct qla4_work_evt *e;
5259
5260 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_PING_STATUS);
5261 if (!e)
5262 return QLA_ERROR;
5263
5264 e->u.ping.status = status;
5265 e->u.ping.pid = pid;
5266 e->u.ping.data_size = data_size;
5267 memcpy(e->u.ping.data, data, data_size);
5268
5269 qla4xxx_post_work(ha, e);
5270
5271 return QLA_SUCCESS;
5272 }
5273
qla4xxx_do_work(struct scsi_qla_host *ha)5274 static void qla4xxx_do_work(struct scsi_qla_host *ha)
5275 {
5276 struct qla4_work_evt *e, *tmp;
5277 unsigned long flags;
5278 LIST_HEAD(work);
5279
5280 spin_lock_irqsave(&ha->work_lock, flags);
5281 list_splice_init(&ha->work_list, &work);
5282 spin_unlock_irqrestore(&ha->work_lock, flags);
5283
5284 list_for_each_entry_safe(e, tmp, &work, list) {
5285 list_del_init(&e->list);
5286
5287 switch (e->type) {
5288 case QLA4_EVENT_AEN:
5289 iscsi_post_host_event(ha->host_no,
5290 &qla4xxx_iscsi_transport,
5291 e->u.aen.code,
5292 e->u.aen.data_size,
5293 e->u.aen.data);
5294 break;
5295 case QLA4_EVENT_PING_STATUS:
5296 iscsi_ping_comp_event(ha->host_no,
5297 &qla4xxx_iscsi_transport,
5298 e->u.ping.status,
5299 e->u.ping.pid,
5300 e->u.ping.data_size,
5301 e->u.ping.data);
5302 break;
5303 default:
5304 ql4_printk(KERN_WARNING, ha, "event type: 0x%x not "
5305 "supported", e->type);
5306 }
5307 kfree(e);
5308 }
5309 }
5310
5311 /**
5312 * qla4xxx_do_dpc - dpc routine
5313 * @work: Context to obtain pointer to host adapter structure.
5314 *
5315 * This routine is a task that is schedule by the interrupt handler
5316 * to perform the background processing for interrupts. We put it
5317 * on a task queue that is consumed whenever the scheduler runs; that's
5318 * so you can do anything (i.e. put the process to sleep etc). In fact,
5319 * the mid-level tries to sleep when it reaches the driver threshold
5320 * "host->can_queue". This can cause a panic if we were in our interrupt code.
5321 **/
qla4xxx_do_dpc(struct work_struct *work)5322 static void qla4xxx_do_dpc(struct work_struct *work)
5323 {
5324 struct scsi_qla_host *ha =
5325 container_of(work, struct scsi_qla_host, dpc_work);
5326 int status = QLA_ERROR;
5327
5328 DEBUG2(ql4_printk(KERN_INFO, ha,
5329 "scsi%ld: %s: DPC handler waking up. flags = 0x%08lx, dpc_flags = 0x%08lx\n",
5330 ha->host_no, __func__, ha->flags, ha->dpc_flags));
5331
5332 /* Initialization not yet finished. Don't do anything yet. */
5333 if (!test_bit(AF_INIT_DONE, &ha->flags))
5334 return;
5335
5336 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
5337 DEBUG2(printk(KERN_INFO "scsi%ld: %s: flags = %lx\n",
5338 ha->host_no, __func__, ha->flags));
5339 return;
5340 }
5341
5342 /* post events to application */
5343 qla4xxx_do_work(ha);
5344
5345 if (is_qla80XX(ha)) {
5346 if (test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags)) {
5347 if (is_qla8032(ha) || is_qla8042(ha)) {
5348 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
5349 __func__);
5350 /* disable pause frame for ISP83xx */
5351 qla4_83xx_disable_pause(ha);
5352 }
5353
5354 ha->isp_ops->idc_lock(ha);
5355 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
5356 QLA8XXX_DEV_FAILED);
5357 ha->isp_ops->idc_unlock(ha);
5358 ql4_printk(KERN_INFO, ha, "HW State: FAILED\n");
5359 qla4_8xxx_device_state_handler(ha);
5360 }
5361
5362 if (test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags)) {
5363 if (is_qla8042(ha)) {
5364 if (ha->idc_info.info2 &
5365 ENABLE_INTERNAL_LOOPBACK) {
5366 ql4_printk(KERN_INFO, ha, "%s: Disabling ACB\n",
5367 __func__);
5368 status = qla4_84xx_config_acb(ha,
5369 ACB_CONFIG_DISABLE);
5370 if (status != QLA_SUCCESS) {
5371 ql4_printk(KERN_INFO, ha, "%s: ACB config failed\n",
5372 __func__);
5373 }
5374 }
5375 }
5376 qla4_83xx_post_idc_ack(ha);
5377 clear_bit(DPC_POST_IDC_ACK, &ha->dpc_flags);
5378 }
5379
5380 if (is_qla8042(ha) &&
5381 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags)) {
5382 ql4_printk(KERN_INFO, ha, "%s: Restoring ACB\n",
5383 __func__);
5384 if (qla4_84xx_config_acb(ha, ACB_CONFIG_SET) !=
5385 QLA_SUCCESS) {
5386 ql4_printk(KERN_INFO, ha, "%s: ACB config failed ",
5387 __func__);
5388 }
5389 clear_bit(DPC_RESTORE_ACB, &ha->dpc_flags);
5390 }
5391
5392 if (test_and_clear_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) {
5393 qla4_8xxx_need_qsnt_handler(ha);
5394 }
5395 }
5396
5397 if (!test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) &&
5398 (test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
5399 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
5400 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))) {
5401 if ((is_qla8022(ha) && ql4xdontresethba) ||
5402 ((is_qla8032(ha) || is_qla8042(ha)) &&
5403 qla4_83xx_idc_dontreset(ha))) {
5404 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n",
5405 ha->host_no, __func__));
5406 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
5407 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags);
5408 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
5409 goto dpc_post_reset_ha;
5410 }
5411 if (test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) ||
5412 test_bit(DPC_RESET_HA, &ha->dpc_flags))
5413 qla4xxx_recover_adapter(ha);
5414
5415 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
5416 uint8_t wait_time = RESET_INTR_TOV;
5417
5418 while ((readw(&ha->reg->ctrl_status) &
5419 (CSR_SOFT_RESET | CSR_FORCE_SOFT_RESET)) != 0) {
5420 if (--wait_time == 0)
5421 break;
5422 msleep(1000);
5423 }
5424 if (wait_time == 0)
5425 DEBUG2(printk("scsi%ld: %s: SR|FSR "
5426 "bit not cleared-- resetting\n",
5427 ha->host_no, __func__));
5428 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
5429 if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS) {
5430 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
5431 status = qla4xxx_recover_adapter(ha);
5432 }
5433 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags);
5434 if (status == QLA_SUCCESS)
5435 ha->isp_ops->enable_intrs(ha);
5436 }
5437 }
5438
5439 dpc_post_reset_ha:
5440 /* ---- process AEN? --- */
5441 if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags))
5442 qla4xxx_process_aen(ha, PROCESS_ALL_AENS);
5443
5444 /* ---- Get DHCP IP Address? --- */
5445 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags))
5446 qla4xxx_get_dhcp_ip_address(ha);
5447
5448 /* ---- relogin device? --- */
5449 if (adapter_up(ha) &&
5450 test_and_clear_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags)) {
5451 iscsi_host_for_each_session(ha->host, qla4xxx_dpc_relogin);
5452 }
5453
5454 /* ---- link change? --- */
5455 if (!test_bit(AF_LOOPBACK, &ha->flags) &&
5456 test_and_clear_bit(DPC_LINK_CHANGED, &ha->dpc_flags)) {
5457 if (!test_bit(AF_LINK_UP, &ha->flags)) {
5458 /* ---- link down? --- */
5459 qla4xxx_mark_all_devices_missing(ha);
5460 } else {
5461 /* ---- link up? --- *
5462 * F/W will auto login to all devices ONLY ONCE after
5463 * link up during driver initialization and runtime
5464 * fatal error recovery. Therefore, the driver must
5465 * manually relogin to devices when recovering from
5466 * connection failures, logouts, expired KATO, etc. */
5467 if (test_and_clear_bit(AF_BUILD_DDB_LIST, &ha->flags)) {
5468 qla4xxx_build_ddb_list(ha, ha->is_reset);
5469 iscsi_host_for_each_session(ha->host,
5470 qla4xxx_login_flash_ddb);
5471 } else
5472 qla4xxx_relogin_all_devices(ha);
5473 }
5474 }
5475 if (test_and_clear_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags)) {
5476 if (qla4xxx_sysfs_ddb_export(ha))
5477 ql4_printk(KERN_ERR, ha, "%s: Error exporting ddb to sysfs\n",
5478 __func__);
5479 }
5480 }
5481
5482 /**
5483 * qla4xxx_free_adapter - release the adapter
5484 * @ha: pointer to adapter structure
5485 **/
qla4xxx_free_adapter(struct scsi_qla_host *ha)5486 static void qla4xxx_free_adapter(struct scsi_qla_host *ha)
5487 {
5488 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
5489
5490 /* Turn-off interrupts on the card. */
5491 ha->isp_ops->disable_intrs(ha);
5492
5493 if (is_qla40XX(ha)) {
5494 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR),
5495 &ha->reg->ctrl_status);
5496 readl(&ha->reg->ctrl_status);
5497 } else if (is_qla8022(ha)) {
5498 writel(0, &ha->qla4_82xx_reg->host_int);
5499 readl(&ha->qla4_82xx_reg->host_int);
5500 } else if (is_qla8032(ha) || is_qla8042(ha)) {
5501 writel(0, &ha->qla4_83xx_reg->risc_intr);
5502 readl(&ha->qla4_83xx_reg->risc_intr);
5503 }
5504
5505 /* Remove timer thread, if present */
5506 if (ha->timer_active)
5507 qla4xxx_stop_timer(ha);
5508
5509 /* Kill the kernel thread for this host */
5510 if (ha->dpc_thread)
5511 destroy_workqueue(ha->dpc_thread);
5512
5513 /* Kill the kernel thread for this host */
5514 if (ha->task_wq)
5515 destroy_workqueue(ha->task_wq);
5516
5517 /* Put firmware in known state */
5518 ha->isp_ops->reset_firmware(ha);
5519
5520 if (is_qla80XX(ha)) {
5521 ha->isp_ops->idc_lock(ha);
5522 qla4_8xxx_clear_drv_active(ha);
5523 ha->isp_ops->idc_unlock(ha);
5524 }
5525
5526 /* Detach interrupts */
5527 qla4xxx_free_irqs(ha);
5528
5529 /* free extra memory */
5530 qla4xxx_mem_free(ha);
5531 }
5532
qla4_8xxx_iospace_config(struct scsi_qla_host *ha)5533 int qla4_8xxx_iospace_config(struct scsi_qla_host *ha)
5534 {
5535 int status = 0;
5536 unsigned long mem_base, mem_len;
5537 struct pci_dev *pdev = ha->pdev;
5538
5539 status = pci_request_regions(pdev, DRIVER_NAME);
5540 if (status) {
5541 printk(KERN_WARNING
5542 "scsi(%ld) Failed to reserve PIO regions (%s) "
5543 "status=%d\n", ha->host_no, pci_name(pdev), status);
5544 goto iospace_error_exit;
5545 }
5546
5547 DEBUG2(printk(KERN_INFO "%s: revision-id=%d\n",
5548 __func__, pdev->revision));
5549 ha->revision_id = pdev->revision;
5550
5551 /* remap phys address */
5552 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
5553 mem_len = pci_resource_len(pdev, 0);
5554 DEBUG2(printk(KERN_INFO "%s: ioremap from %lx a size of %lx\n",
5555 __func__, mem_base, mem_len));
5556
5557 /* mapping of pcibase pointer */
5558 ha->nx_pcibase = (unsigned long)ioremap(mem_base, mem_len);
5559 if (!ha->nx_pcibase) {
5560 printk(KERN_ERR
5561 "cannot remap MMIO (%s), aborting\n", pci_name(pdev));
5562 pci_release_regions(ha->pdev);
5563 goto iospace_error_exit;
5564 }
5565
5566 /* Mapping of IO base pointer, door bell read and write pointer */
5567
5568 /* mapping of IO base pointer */
5569 if (is_qla8022(ha)) {
5570 ha->qla4_82xx_reg = (struct device_reg_82xx __iomem *)
5571 ((uint8_t *)ha->nx_pcibase + 0xbc000 +
5572 (ha->pdev->devfn << 11));
5573 ha->nx_db_wr_ptr = (ha->pdev->devfn == 4 ? QLA82XX_CAM_RAM_DB1 :
5574 QLA82XX_CAM_RAM_DB2);
5575 } else if (is_qla8032(ha) || is_qla8042(ha)) {
5576 ha->qla4_83xx_reg = (struct device_reg_83xx __iomem *)
5577 ((uint8_t *)ha->nx_pcibase);
5578 }
5579
5580 return 0;
5581 iospace_error_exit:
5582 return -ENOMEM;
5583 }
5584
5585 /***
5586 * qla4xxx_iospace_config - maps registers
5587 * @ha: pointer to adapter structure
5588 *
5589 * This routines maps HBA's registers from the pci address space
5590 * into the kernel virtual address space for memory mapped i/o.
5591 **/
qla4xxx_iospace_config(struct scsi_qla_host *ha)5592 int qla4xxx_iospace_config(struct scsi_qla_host *ha)
5593 {
5594 unsigned long pio, pio_len, pio_flags;
5595 unsigned long mmio, mmio_len, mmio_flags;
5596
5597 pio = pci_resource_start(ha->pdev, 0);
5598 pio_len = pci_resource_len(ha->pdev, 0);
5599 pio_flags = pci_resource_flags(ha->pdev, 0);
5600 if (pio_flags & IORESOURCE_IO) {
5601 if (pio_len < MIN_IOBASE_LEN) {
5602 ql4_printk(KERN_WARNING, ha,
5603 "Invalid PCI I/O region size\n");
5604 pio = 0;
5605 }
5606 } else {
5607 ql4_printk(KERN_WARNING, ha, "region #0 not a PIO resource\n");
5608 pio = 0;
5609 }
5610
5611 /* Use MMIO operations for all accesses. */
5612 mmio = pci_resource_start(ha->pdev, 1);
5613 mmio_len = pci_resource_len(ha->pdev, 1);
5614 mmio_flags = pci_resource_flags(ha->pdev, 1);
5615
5616 if (!(mmio_flags & IORESOURCE_MEM)) {
5617 ql4_printk(KERN_ERR, ha,
5618 "region #0 not an MMIO resource, aborting\n");
5619
5620 goto iospace_error_exit;
5621 }
5622
5623 if (mmio_len < MIN_IOBASE_LEN) {
5624 ql4_printk(KERN_ERR, ha,
5625 "Invalid PCI mem region size, aborting\n");
5626 goto iospace_error_exit;
5627 }
5628
5629 if (pci_request_regions(ha->pdev, DRIVER_NAME)) {
5630 ql4_printk(KERN_WARNING, ha,
5631 "Failed to reserve PIO/MMIO regions\n");
5632
5633 goto iospace_error_exit;
5634 }
5635
5636 ha->pio_address = pio;
5637 ha->pio_length = pio_len;
5638 ha->reg = ioremap(mmio, MIN_IOBASE_LEN);
5639 if (!ha->reg) {
5640 ql4_printk(KERN_ERR, ha,
5641 "cannot remap MMIO, aborting\n");
5642
5643 goto iospace_error_exit;
5644 }
5645
5646 return 0;
5647
5648 iospace_error_exit:
5649 return -ENOMEM;
5650 }
5651
5652 static struct isp_operations qla4xxx_isp_ops = {
5653 .iospace_config = qla4xxx_iospace_config,
5654 .pci_config = qla4xxx_pci_config,
5655 .disable_intrs = qla4xxx_disable_intrs,
5656 .enable_intrs = qla4xxx_enable_intrs,
5657 .start_firmware = qla4xxx_start_firmware,
5658 .intr_handler = qla4xxx_intr_handler,
5659 .interrupt_service_routine = qla4xxx_interrupt_service_routine,
5660 .reset_chip = qla4xxx_soft_reset,
5661 .reset_firmware = qla4xxx_hw_reset,
5662 .queue_iocb = qla4xxx_queue_iocb,
5663 .complete_iocb = qla4xxx_complete_iocb,
5664 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out,
5665 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in,
5666 .get_sys_info = qla4xxx_get_sys_info,
5667 .queue_mailbox_command = qla4xxx_queue_mbox_cmd,
5668 .process_mailbox_interrupt = qla4xxx_process_mbox_intr,
5669 };
5670
5671 static struct isp_operations qla4_82xx_isp_ops = {
5672 .iospace_config = qla4_8xxx_iospace_config,
5673 .pci_config = qla4_8xxx_pci_config,
5674 .disable_intrs = qla4_82xx_disable_intrs,
5675 .enable_intrs = qla4_82xx_enable_intrs,
5676 .start_firmware = qla4_8xxx_load_risc,
5677 .restart_firmware = qla4_82xx_try_start_fw,
5678 .intr_handler = qla4_82xx_intr_handler,
5679 .interrupt_service_routine = qla4_82xx_interrupt_service_routine,
5680 .need_reset = qla4_8xxx_need_reset,
5681 .reset_chip = qla4_82xx_isp_reset,
5682 .reset_firmware = qla4_8xxx_stop_firmware,
5683 .queue_iocb = qla4_82xx_queue_iocb,
5684 .complete_iocb = qla4_82xx_complete_iocb,
5685 .rd_shdw_req_q_out = qla4_82xx_rd_shdw_req_q_out,
5686 .rd_shdw_rsp_q_in = qla4_82xx_rd_shdw_rsp_q_in,
5687 .get_sys_info = qla4_8xxx_get_sys_info,
5688 .rd_reg_direct = qla4_82xx_rd_32,
5689 .wr_reg_direct = qla4_82xx_wr_32,
5690 .rd_reg_indirect = qla4_82xx_md_rd_32,
5691 .wr_reg_indirect = qla4_82xx_md_wr_32,
5692 .idc_lock = qla4_82xx_idc_lock,
5693 .idc_unlock = qla4_82xx_idc_unlock,
5694 .rom_lock_recovery = qla4_82xx_rom_lock_recovery,
5695 .queue_mailbox_command = qla4_82xx_queue_mbox_cmd,
5696 .process_mailbox_interrupt = qla4_82xx_process_mbox_intr,
5697 };
5698
5699 static struct isp_operations qla4_83xx_isp_ops = {
5700 .iospace_config = qla4_8xxx_iospace_config,
5701 .pci_config = qla4_8xxx_pci_config,
5702 .disable_intrs = qla4_83xx_disable_intrs,
5703 .enable_intrs = qla4_83xx_enable_intrs,
5704 .start_firmware = qla4_8xxx_load_risc,
5705 .restart_firmware = qla4_83xx_start_firmware,
5706 .intr_handler = qla4_83xx_intr_handler,
5707 .interrupt_service_routine = qla4_83xx_interrupt_service_routine,
5708 .need_reset = qla4_8xxx_need_reset,
5709 .reset_chip = qla4_83xx_isp_reset,
5710 .reset_firmware = qla4_8xxx_stop_firmware,
5711 .queue_iocb = qla4_83xx_queue_iocb,
5712 .complete_iocb = qla4_83xx_complete_iocb,
5713 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out,
5714 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in,
5715 .get_sys_info = qla4_8xxx_get_sys_info,
5716 .rd_reg_direct = qla4_83xx_rd_reg,
5717 .wr_reg_direct = qla4_83xx_wr_reg,
5718 .rd_reg_indirect = qla4_83xx_rd_reg_indirect,
5719 .wr_reg_indirect = qla4_83xx_wr_reg_indirect,
5720 .idc_lock = qla4_83xx_drv_lock,
5721 .idc_unlock = qla4_83xx_drv_unlock,
5722 .rom_lock_recovery = qla4_83xx_rom_lock_recovery,
5723 .queue_mailbox_command = qla4_83xx_queue_mbox_cmd,
5724 .process_mailbox_interrupt = qla4_83xx_process_mbox_intr,
5725 };
5726
qla4xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha)5727 uint16_t qla4xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha)
5728 {
5729 return (uint16_t)le32_to_cpu(ha->shadow_regs->req_q_out);
5730 }
5731
qla4_82xx_rd_shdw_req_q_out(struct scsi_qla_host *ha)5732 uint16_t qla4_82xx_rd_shdw_req_q_out(struct scsi_qla_host *ha)
5733 {
5734 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->req_q_out));
5735 }
5736
qla4xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha)5737 uint16_t qla4xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha)
5738 {
5739 return (uint16_t)le32_to_cpu(ha->shadow_regs->rsp_q_in);
5740 }
5741
qla4_82xx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha)5742 uint16_t qla4_82xx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha)
5743 {
5744 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->rsp_q_in));
5745 }
5746
qla4xxx_show_boot_eth_info(void *data, int type, char *buf)5747 static ssize_t qla4xxx_show_boot_eth_info(void *data, int type, char *buf)
5748 {
5749 struct scsi_qla_host *ha = data;
5750 char *str = buf;
5751 int rc;
5752
5753 switch (type) {
5754 case ISCSI_BOOT_ETH_FLAGS:
5755 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT);
5756 break;
5757 case ISCSI_BOOT_ETH_INDEX:
5758 rc = sprintf(str, "0\n");
5759 break;
5760 case ISCSI_BOOT_ETH_MAC:
5761 rc = sysfs_format_mac(str, ha->my_mac,
5762 MAC_ADDR_LEN);
5763 break;
5764 default:
5765 rc = -ENOSYS;
5766 break;
5767 }
5768 return rc;
5769 }
5770
qla4xxx_eth_get_attr_visibility(void *data, int type)5771 static umode_t qla4xxx_eth_get_attr_visibility(void *data, int type)
5772 {
5773 int rc;
5774
5775 switch (type) {
5776 case ISCSI_BOOT_ETH_FLAGS:
5777 case ISCSI_BOOT_ETH_MAC:
5778 case ISCSI_BOOT_ETH_INDEX:
5779 rc = S_IRUGO;
5780 break;
5781 default:
5782 rc = 0;
5783 break;
5784 }
5785 return rc;
5786 }
5787
qla4xxx_show_boot_ini_info(void *data, int type, char *buf)5788 static ssize_t qla4xxx_show_boot_ini_info(void *data, int type, char *buf)
5789 {
5790 struct scsi_qla_host *ha = data;
5791 char *str = buf;
5792 int rc;
5793
5794 switch (type) {
5795 case ISCSI_BOOT_INI_INITIATOR_NAME:
5796 rc = sprintf(str, "%s\n", ha->name_string);
5797 break;
5798 default:
5799 rc = -ENOSYS;
5800 break;
5801 }
5802 return rc;
5803 }
5804
qla4xxx_ini_get_attr_visibility(void *data, int type)5805 static umode_t qla4xxx_ini_get_attr_visibility(void *data, int type)
5806 {
5807 int rc;
5808
5809 switch (type) {
5810 case ISCSI_BOOT_INI_INITIATOR_NAME:
5811 rc = S_IRUGO;
5812 break;
5813 default:
5814 rc = 0;
5815 break;
5816 }
5817 return rc;
5818 }
5819
5820 static ssize_t
qla4xxx_show_boot_tgt_info(struct ql4_boot_session_info *boot_sess, int type, char *buf)5821 qla4xxx_show_boot_tgt_info(struct ql4_boot_session_info *boot_sess, int type,
5822 char *buf)
5823 {
5824 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0];
5825 char *str = buf;
5826 int rc;
5827
5828 switch (type) {
5829 case ISCSI_BOOT_TGT_NAME:
5830 rc = sprintf(buf, "%s\n", (char *)&boot_sess->target_name);
5831 break;
5832 case ISCSI_BOOT_TGT_IP_ADDR:
5833 if (boot_sess->conn_list[0].dest_ipaddr.ip_type == 0x1)
5834 rc = sprintf(buf, "%pI4\n",
5835 &boot_conn->dest_ipaddr.ip_address);
5836 else
5837 rc = sprintf(str, "%pI6\n",
5838 &boot_conn->dest_ipaddr.ip_address);
5839 break;
5840 case ISCSI_BOOT_TGT_PORT:
5841 rc = sprintf(str, "%d\n", boot_conn->dest_port);
5842 break;
5843 case ISCSI_BOOT_TGT_CHAP_NAME:
5844 rc = sprintf(str, "%.*s\n",
5845 boot_conn->chap.target_chap_name_length,
5846 (char *)&boot_conn->chap.target_chap_name);
5847 break;
5848 case ISCSI_BOOT_TGT_CHAP_SECRET:
5849 rc = sprintf(str, "%.*s\n",
5850 boot_conn->chap.target_secret_length,
5851 (char *)&boot_conn->chap.target_secret);
5852 break;
5853 case ISCSI_BOOT_TGT_REV_CHAP_NAME:
5854 rc = sprintf(str, "%.*s\n",
5855 boot_conn->chap.intr_chap_name_length,
5856 (char *)&boot_conn->chap.intr_chap_name);
5857 break;
5858 case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
5859 rc = sprintf(str, "%.*s\n",
5860 boot_conn->chap.intr_secret_length,
5861 (char *)&boot_conn->chap.intr_secret);
5862 break;
5863 case ISCSI_BOOT_TGT_FLAGS:
5864 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT);
5865 break;
5866 case ISCSI_BOOT_TGT_NIC_ASSOC:
5867 rc = sprintf(str, "0\n");
5868 break;
5869 default:
5870 rc = -ENOSYS;
5871 break;
5872 }
5873 return rc;
5874 }
5875
qla4xxx_show_boot_tgt_pri_info(void *data, int type, char *buf)5876 static ssize_t qla4xxx_show_boot_tgt_pri_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_pri_sess);
5880
5881 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf);
5882 }
5883
qla4xxx_show_boot_tgt_sec_info(void *data, int type, char *buf)5884 static ssize_t qla4xxx_show_boot_tgt_sec_info(void *data, int type, char *buf)
5885 {
5886 struct scsi_qla_host *ha = data;
5887 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_sec_sess);
5888
5889 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf);
5890 }
5891
qla4xxx_tgt_get_attr_visibility(void *data, int type)5892 static umode_t qla4xxx_tgt_get_attr_visibility(void *data, int type)
5893 {
5894 int rc;
5895
5896 switch (type) {
5897 case ISCSI_BOOT_TGT_NAME:
5898 case ISCSI_BOOT_TGT_IP_ADDR:
5899 case ISCSI_BOOT_TGT_PORT:
5900 case ISCSI_BOOT_TGT_CHAP_NAME:
5901 case ISCSI_BOOT_TGT_CHAP_SECRET:
5902 case ISCSI_BOOT_TGT_REV_CHAP_NAME:
5903 case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
5904 case ISCSI_BOOT_TGT_NIC_ASSOC:
5905 case ISCSI_BOOT_TGT_FLAGS:
5906 rc = S_IRUGO;
5907 break;
5908 default:
5909 rc = 0;
5910 break;
5911 }
5912 return rc;
5913 }
5914
qla4xxx_boot_release(void *data)5915 static void qla4xxx_boot_release(void *data)
5916 {
5917 struct scsi_qla_host *ha = data;
5918
5919 scsi_host_put(ha->host);
5920 }
5921
get_fw_boot_info(struct scsi_qla_host *ha, uint16_t ddb_index[])5922 static int get_fw_boot_info(struct scsi_qla_host *ha, uint16_t ddb_index[])
5923 {
5924 dma_addr_t buf_dma;
5925 uint32_t addr, pri_addr, sec_addr;
5926 uint32_t offset;
5927 uint16_t func_num;
5928 uint8_t val;
5929 uint8_t *buf = NULL;
5930 size_t size = 13 * sizeof(uint8_t);
5931 int ret = QLA_SUCCESS;
5932
5933 func_num = PCI_FUNC(ha->pdev->devfn);
5934
5935 ql4_printk(KERN_INFO, ha, "%s: Get FW boot info for 0x%x func %d\n",
5936 __func__, ha->pdev->device, func_num);
5937
5938 if (is_qla40XX(ha)) {
5939 if (func_num == 1) {
5940 addr = NVRAM_PORT0_BOOT_MODE;
5941 pri_addr = NVRAM_PORT0_BOOT_PRI_TGT;
5942 sec_addr = NVRAM_PORT0_BOOT_SEC_TGT;
5943 } else if (func_num == 3) {
5944 addr = NVRAM_PORT1_BOOT_MODE;
5945 pri_addr = NVRAM_PORT1_BOOT_PRI_TGT;
5946 sec_addr = NVRAM_PORT1_BOOT_SEC_TGT;
5947 } else {
5948 ret = QLA_ERROR;
5949 goto exit_boot_info;
5950 }
5951
5952 /* Check Boot Mode */
5953 val = rd_nvram_byte(ha, addr);
5954 if (!(val & 0x07)) {
5955 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Adapter boot "
5956 "options : 0x%x\n", __func__, val));
5957 ret = QLA_ERROR;
5958 goto exit_boot_info;
5959 }
5960
5961 /* get primary valid target index */
5962 val = rd_nvram_byte(ha, pri_addr);
5963 if (val & BIT_7)
5964 ddb_index[0] = (val & 0x7f);
5965
5966 /* get secondary valid target index */
5967 val = rd_nvram_byte(ha, sec_addr);
5968 if (val & BIT_7)
5969 ddb_index[1] = (val & 0x7f);
5970 goto exit_boot_info;
5971 } else if (is_qla80XX(ha)) {
5972 buf = dma_alloc_coherent(&ha->pdev->dev, size,
5973 &buf_dma, GFP_KERNEL);
5974 if (!buf) {
5975 DEBUG2(ql4_printk(KERN_ERR, ha,
5976 "%s: Unable to allocate dma buffer\n",
5977 __func__));
5978 ret = QLA_ERROR;
5979 goto exit_boot_info;
5980 }
5981
5982 if (ha->port_num == 0)
5983 offset = BOOT_PARAM_OFFSET_PORT0;
5984 else if (ha->port_num == 1)
5985 offset = BOOT_PARAM_OFFSET_PORT1;
5986 else {
5987 ret = QLA_ERROR;
5988 goto exit_boot_info_free;
5989 }
5990 addr = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_iscsi_param * 4) +
5991 offset;
5992 if (qla4xxx_get_flash(ha, buf_dma, addr,
5993 13 * sizeof(uint8_t)) != QLA_SUCCESS) {
5994 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: Get Flash"
5995 " failed\n", ha->host_no, __func__));
5996 ret = QLA_ERROR;
5997 goto exit_boot_info_free;
5998 }
5999 /* Check Boot Mode */
6000 if (!(buf[1] & 0x07)) {
6001 DEBUG2(ql4_printk(KERN_INFO, ha, "Firmware boot options"
6002 " : 0x%x\n", buf[1]));
6003 ret = QLA_ERROR;
6004 goto exit_boot_info_free;
6005 }
6006
6007 /* get primary valid target index */
6008 if (buf[2] & BIT_7)
6009 ddb_index[0] = buf[2] & 0x7f;
6010
6011 /* get secondary valid target index */
6012 if (buf[11] & BIT_7)
6013 ddb_index[1] = buf[11] & 0x7f;
6014 } else {
6015 ret = QLA_ERROR;
6016 goto exit_boot_info;
6017 }
6018
6019 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary target ID %d, Secondary"
6020 " target ID %d\n", __func__, ddb_index[0],
6021 ddb_index[1]));
6022
6023 exit_boot_info_free:
6024 dma_free_coherent(&ha->pdev->dev, size, buf, buf_dma);
6025 exit_boot_info:
6026 ha->pri_ddb_idx = ddb_index[0];
6027 ha->sec_ddb_idx = ddb_index[1];
6028 return ret;
6029 }
6030
6031 /**
6032 * qla4xxx_get_bidi_chap - Get a BIDI CHAP user and password
6033 * @ha: pointer to adapter structure
6034 * @username: CHAP username to be returned
6035 * @password: CHAP password to be returned
6036 *
6037 * If a boot entry has BIDI CHAP enabled then we need to set the BIDI CHAP
6038 * user and password in the sysfs entry in /sys/firmware/iscsi_boot#/.
6039 * So from the CHAP cache find the first BIDI CHAP entry and set it
6040 * to the boot record in sysfs.
6041 **/
qla4xxx_get_bidi_chap(struct scsi_qla_host *ha, char *username, char *password)6042 static int qla4xxx_get_bidi_chap(struct scsi_qla_host *ha, char *username,
6043 char *password)
6044 {
6045 int i, ret = -EINVAL;
6046 int max_chap_entries = 0;
6047 struct ql4_chap_table *chap_table;
6048
6049 if (is_qla80XX(ha))
6050 max_chap_entries = (ha->hw.flt_chap_size / 2) /
6051 sizeof(struct ql4_chap_table);
6052 else
6053 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
6054
6055 if (!ha->chap_list) {
6056 ql4_printk(KERN_ERR, ha, "Do not have CHAP table cache\n");
6057 return ret;
6058 }
6059
6060 mutex_lock(&ha->chap_sem);
6061 for (i = 0; i < max_chap_entries; i++) {
6062 chap_table = (struct ql4_chap_table *)ha->chap_list + i;
6063 if (chap_table->cookie !=
6064 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) {
6065 continue;
6066 }
6067
6068 if (chap_table->flags & BIT_7) /* local */
6069 continue;
6070
6071 if (!(chap_table->flags & BIT_6)) /* Not BIDI */
6072 continue;
6073
6074 strlcpy(password, chap_table->secret, QL4_CHAP_MAX_SECRET_LEN);
6075 strlcpy(username, chap_table->name, QL4_CHAP_MAX_NAME_LEN);
6076 ret = 0;
6077 break;
6078 }
6079 mutex_unlock(&ha->chap_sem);
6080
6081 return ret;
6082 }
6083
6084
qla4xxx_get_boot_target(struct scsi_qla_host *ha, struct ql4_boot_session_info *boot_sess, uint16_t ddb_index)6085 static int qla4xxx_get_boot_target(struct scsi_qla_host *ha,
6086 struct ql4_boot_session_info *boot_sess,
6087 uint16_t ddb_index)
6088 {
6089 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0];
6090 struct dev_db_entry *fw_ddb_entry;
6091 dma_addr_t fw_ddb_entry_dma;
6092 uint16_t idx;
6093 uint16_t options;
6094 int ret = QLA_SUCCESS;
6095
6096 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
6097 &fw_ddb_entry_dma, GFP_KERNEL);
6098 if (!fw_ddb_entry) {
6099 DEBUG2(ql4_printk(KERN_ERR, ha,
6100 "%s: Unable to allocate dma buffer.\n",
6101 __func__));
6102 ret = QLA_ERROR;
6103 return ret;
6104 }
6105
6106 if (qla4xxx_bootdb_by_index(ha, fw_ddb_entry,
6107 fw_ddb_entry_dma, ddb_index)) {
6108 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: No Flash DDB found at "
6109 "index [%d]\n", __func__, ddb_index));
6110 ret = QLA_ERROR;
6111 goto exit_boot_target;
6112 }
6113
6114 /* Update target name and IP from DDB */
6115 memcpy(boot_sess->target_name, fw_ddb_entry->iscsi_name,
6116 min(sizeof(boot_sess->target_name),
6117 sizeof(fw_ddb_entry->iscsi_name)));
6118
6119 options = le16_to_cpu(fw_ddb_entry->options);
6120 if (options & DDB_OPT_IPV6_DEVICE) {
6121 memcpy(&boot_conn->dest_ipaddr.ip_address,
6122 &fw_ddb_entry->ip_addr[0], IPv6_ADDR_LEN);
6123 } else {
6124 boot_conn->dest_ipaddr.ip_type = 0x1;
6125 memcpy(&boot_conn->dest_ipaddr.ip_address,
6126 &fw_ddb_entry->ip_addr[0], IP_ADDR_LEN);
6127 }
6128
6129 boot_conn->dest_port = le16_to_cpu(fw_ddb_entry->port);
6130
6131 /* update chap information */
6132 idx = __le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
6133
6134 if (BIT_7 & le16_to_cpu(fw_ddb_entry->iscsi_options)) {
6135
6136 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting chap\n"));
6137
6138 ret = qla4xxx_get_chap(ha, (char *)&boot_conn->chap.
6139 target_chap_name,
6140 (char *)&boot_conn->chap.target_secret,
6141 idx);
6142 if (ret) {
6143 ql4_printk(KERN_ERR, ha, "Failed to set chap\n");
6144 ret = QLA_ERROR;
6145 goto exit_boot_target;
6146 }
6147
6148 boot_conn->chap.target_chap_name_length = QL4_CHAP_MAX_NAME_LEN;
6149 boot_conn->chap.target_secret_length = QL4_CHAP_MAX_SECRET_LEN;
6150 }
6151
6152 if (BIT_4 & le16_to_cpu(fw_ddb_entry->iscsi_options)) {
6153
6154 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting BIDI chap\n"));
6155
6156 ret = qla4xxx_get_bidi_chap(ha,
6157 (char *)&boot_conn->chap.intr_chap_name,
6158 (char *)&boot_conn->chap.intr_secret);
6159
6160 if (ret) {
6161 ql4_printk(KERN_ERR, ha, "Failed to set BIDI chap\n");
6162 ret = QLA_ERROR;
6163 goto exit_boot_target;
6164 }
6165
6166 boot_conn->chap.intr_chap_name_length = QL4_CHAP_MAX_NAME_LEN;
6167 boot_conn->chap.intr_secret_length = QL4_CHAP_MAX_SECRET_LEN;
6168 }
6169
6170 exit_boot_target:
6171 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
6172 fw_ddb_entry, fw_ddb_entry_dma);
6173 return ret;
6174 }
6175
qla4xxx_get_boot_info(struct scsi_qla_host *ha)6176 static int qla4xxx_get_boot_info(struct scsi_qla_host *ha)
6177 {
6178 uint16_t ddb_index[2];
6179 int ret = QLA_ERROR;
6180 int rval;
6181
6182 memset(ddb_index, 0, sizeof(ddb_index));
6183 ddb_index[0] = 0xffff;
6184 ddb_index[1] = 0xffff;
6185 ret = get_fw_boot_info(ha, ddb_index);
6186 if (ret != QLA_SUCCESS) {
6187 DEBUG2(ql4_printk(KERN_INFO, ha,
6188 "%s: No boot target configured.\n", __func__));
6189 return ret;
6190 }
6191
6192 if (ql4xdisablesysfsboot)
6193 return QLA_SUCCESS;
6194
6195 if (ddb_index[0] == 0xffff)
6196 goto sec_target;
6197
6198 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_pri_sess),
6199 ddb_index[0]);
6200 if (rval != QLA_SUCCESS) {
6201 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary boot target not "
6202 "configured\n", __func__));
6203 } else
6204 ret = QLA_SUCCESS;
6205
6206 sec_target:
6207 if (ddb_index[1] == 0xffff)
6208 goto exit_get_boot_info;
6209
6210 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_sec_sess),
6211 ddb_index[1]);
6212 if (rval != QLA_SUCCESS) {
6213 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Secondary boot target not"
6214 " configured\n", __func__));
6215 } else
6216 ret = QLA_SUCCESS;
6217
6218 exit_get_boot_info:
6219 return ret;
6220 }
6221
qla4xxx_setup_boot_info(struct scsi_qla_host *ha)6222 static int qla4xxx_setup_boot_info(struct scsi_qla_host *ha)
6223 {
6224 struct iscsi_boot_kobj *boot_kobj;
6225
6226 if (qla4xxx_get_boot_info(ha) != QLA_SUCCESS)
6227 return QLA_ERROR;
6228
6229 if (ql4xdisablesysfsboot) {
6230 ql4_printk(KERN_INFO, ha,
6231 "%s: syfsboot disabled - driver will trigger login "
6232 "and publish session for discovery .\n", __func__);
6233 return QLA_SUCCESS;
6234 }
6235
6236
6237 ha->boot_kset = iscsi_boot_create_host_kset(ha->host->host_no);
6238 if (!ha->boot_kset)
6239 goto kset_free;
6240
6241 if (!scsi_host_get(ha->host))
6242 goto kset_free;
6243 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 0, ha,
6244 qla4xxx_show_boot_tgt_pri_info,
6245 qla4xxx_tgt_get_attr_visibility,
6246 qla4xxx_boot_release);
6247 if (!boot_kobj)
6248 goto put_host;
6249
6250 if (!scsi_host_get(ha->host))
6251 goto kset_free;
6252 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 1, ha,
6253 qla4xxx_show_boot_tgt_sec_info,
6254 qla4xxx_tgt_get_attr_visibility,
6255 qla4xxx_boot_release);
6256 if (!boot_kobj)
6257 goto put_host;
6258
6259 if (!scsi_host_get(ha->host))
6260 goto kset_free;
6261 boot_kobj = iscsi_boot_create_initiator(ha->boot_kset, 0, ha,
6262 qla4xxx_show_boot_ini_info,
6263 qla4xxx_ini_get_attr_visibility,
6264 qla4xxx_boot_release);
6265 if (!boot_kobj)
6266 goto put_host;
6267
6268 if (!scsi_host_get(ha->host))
6269 goto kset_free;
6270 boot_kobj = iscsi_boot_create_ethernet(ha->boot_kset, 0, ha,
6271 qla4xxx_show_boot_eth_info,
6272 qla4xxx_eth_get_attr_visibility,
6273 qla4xxx_boot_release);
6274 if (!boot_kobj)
6275 goto put_host;
6276
6277 return QLA_SUCCESS;
6278
6279 put_host:
6280 scsi_host_put(ha->host);
6281 kset_free:
6282 iscsi_boot_destroy_kset(ha->boot_kset);
6283 return -ENOMEM;
6284 }
6285
6286
qla4xxx_get_param_ddb(struct ddb_entry *ddb_entry, struct ql4_tuple_ddb *tddb)6287 static void qla4xxx_get_param_ddb(struct ddb_entry *ddb_entry,
6288 struct ql4_tuple_ddb *tddb)
6289 {
6290 struct iscsi_cls_session *cls_sess;
6291 struct iscsi_cls_conn *cls_conn;
6292 struct iscsi_session *sess;
6293 struct iscsi_conn *conn;
6294
6295 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
6296 cls_sess = ddb_entry->sess;
6297 sess = cls_sess->dd_data;
6298 cls_conn = ddb_entry->conn;
6299 conn = cls_conn->dd_data;
6300
6301 tddb->tpgt = sess->tpgt;
6302 tddb->port = conn->persistent_port;
6303 strlcpy(tddb->iscsi_name, sess->targetname, ISCSI_NAME_SIZE);
6304 strlcpy(tddb->ip_addr, conn->persistent_address, DDB_IPADDR_LEN);
6305 }
6306
qla4xxx_convert_param_ddb(struct dev_db_entry *fw_ddb_entry, struct ql4_tuple_ddb *tddb, uint8_t *flash_isid)6307 static void qla4xxx_convert_param_ddb(struct dev_db_entry *fw_ddb_entry,
6308 struct ql4_tuple_ddb *tddb,
6309 uint8_t *flash_isid)
6310 {
6311 uint16_t options = 0;
6312
6313 tddb->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
6314 memcpy(&tddb->iscsi_name[0], &fw_ddb_entry->iscsi_name[0],
6315 min(sizeof(tddb->iscsi_name), sizeof(fw_ddb_entry->iscsi_name)));
6316
6317 options = le16_to_cpu(fw_ddb_entry->options);
6318 if (options & DDB_OPT_IPV6_DEVICE)
6319 sprintf(tddb->ip_addr, "%pI6", fw_ddb_entry->ip_addr);
6320 else
6321 sprintf(tddb->ip_addr, "%pI4", fw_ddb_entry->ip_addr);
6322
6323 tddb->port = le16_to_cpu(fw_ddb_entry->port);
6324
6325 if (flash_isid == NULL)
6326 memcpy(&tddb->isid[0], &fw_ddb_entry->isid[0],
6327 sizeof(tddb->isid));
6328 else
6329 memcpy(&tddb->isid[0], &flash_isid[0], sizeof(tddb->isid));
6330 }
6331
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)6332 static int qla4xxx_compare_tuple_ddb(struct scsi_qla_host *ha,
6333 struct ql4_tuple_ddb *old_tddb,
6334 struct ql4_tuple_ddb *new_tddb,
6335 uint8_t is_isid_compare)
6336 {
6337 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name))
6338 return QLA_ERROR;
6339
6340 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr))
6341 return QLA_ERROR;
6342
6343 if (old_tddb->port != new_tddb->port)
6344 return QLA_ERROR;
6345
6346 /* For multi sessions, driver generates the ISID, so do not compare
6347 * ISID in reset path since it would be a comparison between the
6348 * driver generated ISID and firmware generated ISID. This could
6349 * lead to adding duplicated DDBs in the list as driver generated
6350 * ISID would not match firmware generated ISID.
6351 */
6352 if (is_isid_compare) {
6353 DEBUG2(ql4_printk(KERN_INFO, ha,
6354 "%s: old ISID [%pmR] New ISID [%pmR]\n",
6355 __func__, old_tddb->isid, new_tddb->isid));
6356
6357 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0],
6358 sizeof(old_tddb->isid)))
6359 return QLA_ERROR;
6360 }
6361
6362 DEBUG2(ql4_printk(KERN_INFO, ha,
6363 "Match Found, fw[%d,%d,%s,%s], [%d,%d,%s,%s]",
6364 old_tddb->port, old_tddb->tpgt, old_tddb->ip_addr,
6365 old_tddb->iscsi_name, new_tddb->port, new_tddb->tpgt,
6366 new_tddb->ip_addr, new_tddb->iscsi_name));
6367
6368 return QLA_SUCCESS;
6369 }
6370
qla4xxx_is_session_exists(struct scsi_qla_host *ha, struct dev_db_entry *fw_ddb_entry, uint32_t *index)6371 static int qla4xxx_is_session_exists(struct scsi_qla_host *ha,
6372 struct dev_db_entry *fw_ddb_entry,
6373 uint32_t *index)
6374 {
6375 struct ddb_entry *ddb_entry;
6376 struct ql4_tuple_ddb *fw_tddb = NULL;
6377 struct ql4_tuple_ddb *tmp_tddb = NULL;
6378 int idx;
6379 int ret = QLA_ERROR;
6380
6381 fw_tddb = vzalloc(sizeof(*fw_tddb));
6382 if (!fw_tddb) {
6383 DEBUG2(ql4_printk(KERN_WARNING, ha,
6384 "Memory Allocation failed.\n"));
6385 ret = QLA_SUCCESS;
6386 goto exit_check;
6387 }
6388
6389 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
6390 if (!tmp_tddb) {
6391 DEBUG2(ql4_printk(KERN_WARNING, ha,
6392 "Memory Allocation failed.\n"));
6393 ret = QLA_SUCCESS;
6394 goto exit_check;
6395 }
6396
6397 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL);
6398
6399 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
6400 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
6401 if (ddb_entry == NULL)
6402 continue;
6403
6404 qla4xxx_get_param_ddb(ddb_entry, tmp_tddb);
6405 if (!qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, false)) {
6406 ret = QLA_SUCCESS; /* found */
6407 if (index != NULL)
6408 *index = idx;
6409 goto exit_check;
6410 }
6411 }
6412
6413 exit_check:
6414 if (fw_tddb)
6415 vfree(fw_tddb);
6416 if (tmp_tddb)
6417 vfree(tmp_tddb);
6418 return ret;
6419 }
6420
6421 /**
6422 * qla4xxx_check_existing_isid - check if target with same isid exist
6423 * in target list
6424 * @list_nt: list of target
6425 * @isid: isid to check
6426 *
6427 * This routine return QLA_SUCCESS if target with same isid exist
6428 **/
qla4xxx_check_existing_isid(struct list_head *list_nt, uint8_t *isid)6429 static int qla4xxx_check_existing_isid(struct list_head *list_nt, uint8_t *isid)
6430 {
6431 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp;
6432 struct dev_db_entry *fw_ddb_entry;
6433
6434 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
6435 fw_ddb_entry = &nt_ddb_idx->fw_ddb;
6436
6437 if (memcmp(&fw_ddb_entry->isid[0], &isid[0],
6438 sizeof(nt_ddb_idx->fw_ddb.isid)) == 0) {
6439 return QLA_SUCCESS;
6440 }
6441 }
6442 return QLA_ERROR;
6443 }
6444
6445 /**
6446 * qla4xxx_update_isid - compare ddbs and updated isid
6447 * @ha: Pointer to host adapter structure.
6448 * @list_nt: list of nt target
6449 * @fw_ddb_entry: firmware ddb entry
6450 *
6451 * This routine update isid if ddbs have same iqn, same isid and
6452 * different IP addr.
6453 * Return QLA_SUCCESS if isid is updated.
6454 **/
qla4xxx_update_isid(struct scsi_qla_host *ha, struct list_head *list_nt, struct dev_db_entry *fw_ddb_entry)6455 static int qla4xxx_update_isid(struct scsi_qla_host *ha,
6456 struct list_head *list_nt,
6457 struct dev_db_entry *fw_ddb_entry)
6458 {
6459 uint8_t base_value, i;
6460
6461 base_value = fw_ddb_entry->isid[1] & 0x1f;
6462 for (i = 0; i < 8; i++) {
6463 fw_ddb_entry->isid[1] = (base_value | (i << 5));
6464 if (qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid))
6465 break;
6466 }
6467
6468 if (!qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid))
6469 return QLA_ERROR;
6470
6471 return QLA_SUCCESS;
6472 }
6473
6474 /**
6475 * qla4xxx_should_update_isid - check if isid need to update
6476 * @ha: Pointer to host adapter structure.
6477 * @old_tddb: ddb tuple
6478 * @new_tddb: ddb tuple
6479 *
6480 * Return QLA_SUCCESS if different IP, different PORT, same iqn,
6481 * same isid
6482 **/
qla4xxx_should_update_isid(struct scsi_qla_host *ha, struct ql4_tuple_ddb *old_tddb, struct ql4_tuple_ddb *new_tddb)6483 static int qla4xxx_should_update_isid(struct scsi_qla_host *ha,
6484 struct ql4_tuple_ddb *old_tddb,
6485 struct ql4_tuple_ddb *new_tddb)
6486 {
6487 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr) == 0) {
6488 /* Same ip */
6489 if (old_tddb->port == new_tddb->port)
6490 return QLA_ERROR;
6491 }
6492
6493 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name))
6494 /* different iqn */
6495 return QLA_ERROR;
6496
6497 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0],
6498 sizeof(old_tddb->isid)))
6499 /* different isid */
6500 return QLA_ERROR;
6501
6502 return QLA_SUCCESS;
6503 }
6504
6505 /**
6506 * qla4xxx_is_flash_ddb_exists - check if fw_ddb_entry already exists in list_nt
6507 * @ha: Pointer to host adapter structure.
6508 * @list_nt: list of nt target.
6509 * @fw_ddb_entry: firmware ddb entry.
6510 *
6511 * This routine check if fw_ddb_entry already exists in list_nt to avoid
6512 * duplicate ddb in list_nt.
6513 * Return QLA_SUCCESS if duplicate ddb exit in list_nl.
6514 * Note: This function also update isid of DDB if required.
6515 **/
6516
qla4xxx_is_flash_ddb_exists(struct scsi_qla_host *ha, struct list_head *list_nt, struct dev_db_entry *fw_ddb_entry)6517 static int qla4xxx_is_flash_ddb_exists(struct scsi_qla_host *ha,
6518 struct list_head *list_nt,
6519 struct dev_db_entry *fw_ddb_entry)
6520 {
6521 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp;
6522 struct ql4_tuple_ddb *fw_tddb = NULL;
6523 struct ql4_tuple_ddb *tmp_tddb = NULL;
6524 int rval, ret = QLA_ERROR;
6525
6526 fw_tddb = vzalloc(sizeof(*fw_tddb));
6527 if (!fw_tddb) {
6528 DEBUG2(ql4_printk(KERN_WARNING, ha,
6529 "Memory Allocation failed.\n"));
6530 ret = QLA_SUCCESS;
6531 goto exit_check;
6532 }
6533
6534 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
6535 if (!tmp_tddb) {
6536 DEBUG2(ql4_printk(KERN_WARNING, ha,
6537 "Memory Allocation failed.\n"));
6538 ret = QLA_SUCCESS;
6539 goto exit_check;
6540 }
6541
6542 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL);
6543
6544 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
6545 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb,
6546 nt_ddb_idx->flash_isid);
6547 ret = qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, true);
6548 /* found duplicate ddb */
6549 if (ret == QLA_SUCCESS)
6550 goto exit_check;
6551 }
6552
6553 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
6554 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb, NULL);
6555
6556 ret = qla4xxx_should_update_isid(ha, tmp_tddb, fw_tddb);
6557 if (ret == QLA_SUCCESS) {
6558 rval = qla4xxx_update_isid(ha, list_nt, fw_ddb_entry);
6559 if (rval == QLA_SUCCESS)
6560 ret = QLA_ERROR;
6561 else
6562 ret = QLA_SUCCESS;
6563
6564 goto exit_check;
6565 }
6566 }
6567
6568 exit_check:
6569 if (fw_tddb)
6570 vfree(fw_tddb);
6571 if (tmp_tddb)
6572 vfree(tmp_tddb);
6573 return ret;
6574 }
6575
qla4xxx_free_ddb_list(struct list_head *list_ddb)6576 static void qla4xxx_free_ddb_list(struct list_head *list_ddb)
6577 {
6578 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
6579
6580 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
6581 list_del_init(&ddb_idx->list);
6582 vfree(ddb_idx);
6583 }
6584 }
6585
qla4xxx_get_ep_fwdb(struct scsi_qla_host *ha, struct dev_db_entry *fw_ddb_entry)6586 static struct iscsi_endpoint *qla4xxx_get_ep_fwdb(struct scsi_qla_host *ha,
6587 struct dev_db_entry *fw_ddb_entry)
6588 {
6589 struct iscsi_endpoint *ep;
6590 struct sockaddr_in *addr;
6591 struct sockaddr_in6 *addr6;
6592 struct sockaddr *t_addr;
6593 struct sockaddr_storage *dst_addr;
6594 char *ip;
6595
6596 /* TODO: need to destroy on unload iscsi_endpoint*/
6597 dst_addr = vmalloc(sizeof(*dst_addr));
6598 if (!dst_addr)
6599 return NULL;
6600
6601 if (fw_ddb_entry->options & DDB_OPT_IPV6_DEVICE) {
6602 t_addr = (struct sockaddr *)dst_addr;
6603 t_addr->sa_family = AF_INET6;
6604 addr6 = (struct sockaddr_in6 *)dst_addr;
6605 ip = (char *)&addr6->sin6_addr;
6606 memcpy(ip, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN);
6607 addr6->sin6_port = htons(le16_to_cpu(fw_ddb_entry->port));
6608
6609 } else {
6610 t_addr = (struct sockaddr *)dst_addr;
6611 t_addr->sa_family = AF_INET;
6612 addr = (struct sockaddr_in *)dst_addr;
6613 ip = (char *)&addr->sin_addr;
6614 memcpy(ip, fw_ddb_entry->ip_addr, IP_ADDR_LEN);
6615 addr->sin_port = htons(le16_to_cpu(fw_ddb_entry->port));
6616 }
6617
6618 ep = qla4xxx_ep_connect(ha->host, (struct sockaddr *)dst_addr, 0);
6619 vfree(dst_addr);
6620 return ep;
6621 }
6622
qla4xxx_verify_boot_idx(struct scsi_qla_host *ha, uint16_t idx)6623 static int qla4xxx_verify_boot_idx(struct scsi_qla_host *ha, uint16_t idx)
6624 {
6625 if (ql4xdisablesysfsboot)
6626 return QLA_SUCCESS;
6627 if (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx)
6628 return QLA_ERROR;
6629 return QLA_SUCCESS;
6630 }
6631
qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha, struct ddb_entry *ddb_entry, uint16_t idx)6632 static void qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha,
6633 struct ddb_entry *ddb_entry,
6634 uint16_t idx)
6635 {
6636 uint16_t def_timeout;
6637
6638 ddb_entry->ddb_type = FLASH_DDB;
6639 ddb_entry->fw_ddb_index = INVALID_ENTRY;
6640 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE;
6641 ddb_entry->ha = ha;
6642 ddb_entry->unblock_sess = qla4xxx_unblock_flash_ddb;
6643 ddb_entry->ddb_change = qla4xxx_flash_ddb_change;
6644 ddb_entry->chap_tbl_idx = INVALID_ENTRY;
6645
6646 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY);
6647 atomic_set(&ddb_entry->relogin_timer, 0);
6648 atomic_set(&ddb_entry->relogin_retry_count, 0);
6649 def_timeout = le16_to_cpu(ddb_entry->fw_ddb_entry.def_timeout);
6650 ddb_entry->default_relogin_timeout =
6651 (def_timeout > LOGIN_TOV) && (def_timeout < LOGIN_TOV * 10) ?
6652 def_timeout : LOGIN_TOV;
6653 ddb_entry->default_time2wait =
6654 le16_to_cpu(ddb_entry->fw_ddb_entry.iscsi_def_time2wait);
6655
6656 if (ql4xdisablesysfsboot &&
6657 (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx))
6658 set_bit(DF_BOOT_TGT, &ddb_entry->flags);
6659 }
6660
qla4xxx_wait_for_ip_configuration(struct scsi_qla_host *ha)6661 static void qla4xxx_wait_for_ip_configuration(struct scsi_qla_host *ha)
6662 {
6663 uint32_t idx = 0;
6664 uint32_t ip_idx[IP_ADDR_COUNT] = {0, 1, 2, 3}; /* 4 IP interfaces */
6665 uint32_t sts[MBOX_REG_COUNT];
6666 uint32_t ip_state;
6667 unsigned long wtime;
6668 int ret;
6669
6670 wtime = jiffies + (HZ * IP_CONFIG_TOV);
6671 do {
6672 for (idx = 0; idx < IP_ADDR_COUNT; idx++) {
6673 if (ip_idx[idx] == -1)
6674 continue;
6675
6676 ret = qla4xxx_get_ip_state(ha, 0, ip_idx[idx], sts);
6677
6678 if (ret == QLA_ERROR) {
6679 ip_idx[idx] = -1;
6680 continue;
6681 }
6682
6683 ip_state = (sts[1] & IP_STATE_MASK) >> IP_STATE_SHIFT;
6684
6685 DEBUG2(ql4_printk(KERN_INFO, ha,
6686 "Waiting for IP state for idx = %d, state = 0x%x\n",
6687 ip_idx[idx], ip_state));
6688 if (ip_state == IP_ADDRSTATE_UNCONFIGURED ||
6689 ip_state == IP_ADDRSTATE_INVALID ||
6690 ip_state == IP_ADDRSTATE_PREFERRED ||
6691 ip_state == IP_ADDRSTATE_DEPRICATED ||
6692 ip_state == IP_ADDRSTATE_DISABLING)
6693 ip_idx[idx] = -1;
6694 }
6695
6696 /* Break if all IP states checked */
6697 if ((ip_idx[0] == -1) &&
6698 (ip_idx[1] == -1) &&
6699 (ip_idx[2] == -1) &&
6700 (ip_idx[3] == -1))
6701 break;
6702 schedule_timeout_uninterruptible(HZ);
6703 } while (time_after(wtime, jiffies));
6704 }
6705
qla4xxx_cmp_fw_stentry(struct dev_db_entry *fw_ddb_entry, struct dev_db_entry *flash_ddb_entry)6706 static int qla4xxx_cmp_fw_stentry(struct dev_db_entry *fw_ddb_entry,
6707 struct dev_db_entry *flash_ddb_entry)
6708 {
6709 uint16_t options = 0;
6710 size_t ip_len = IP_ADDR_LEN;
6711
6712 options = le16_to_cpu(fw_ddb_entry->options);
6713 if (options & DDB_OPT_IPV6_DEVICE)
6714 ip_len = IPv6_ADDR_LEN;
6715
6716 if (memcmp(fw_ddb_entry->ip_addr, flash_ddb_entry->ip_addr, ip_len))
6717 return QLA_ERROR;
6718
6719 if (memcmp(&fw_ddb_entry->isid[0], &flash_ddb_entry->isid[0],
6720 sizeof(fw_ddb_entry->isid)))
6721 return QLA_ERROR;
6722
6723 if (memcmp(&fw_ddb_entry->port, &flash_ddb_entry->port,
6724 sizeof(fw_ddb_entry->port)))
6725 return QLA_ERROR;
6726
6727 return QLA_SUCCESS;
6728 }
6729
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)6730 static int qla4xxx_find_flash_st_idx(struct scsi_qla_host *ha,
6731 struct dev_db_entry *fw_ddb_entry,
6732 uint32_t fw_idx, uint32_t *flash_index)
6733 {
6734 struct dev_db_entry *flash_ddb_entry;
6735 dma_addr_t flash_ddb_entry_dma;
6736 uint32_t idx = 0;
6737 int max_ddbs;
6738 int ret = QLA_ERROR, status;
6739
6740 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
6741 MAX_DEV_DB_ENTRIES;
6742
6743 flash_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
6744 &flash_ddb_entry_dma);
6745 if (flash_ddb_entry == NULL || fw_ddb_entry == NULL) {
6746 ql4_printk(KERN_ERR, ha, "Out of memory\n");
6747 goto exit_find_st_idx;
6748 }
6749
6750 status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry,
6751 flash_ddb_entry_dma, fw_idx);
6752 if (status == QLA_SUCCESS) {
6753 status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry);
6754 if (status == QLA_SUCCESS) {
6755 *flash_index = fw_idx;
6756 ret = QLA_SUCCESS;
6757 goto exit_find_st_idx;
6758 }
6759 }
6760
6761 for (idx = 0; idx < max_ddbs; idx++) {
6762 status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry,
6763 flash_ddb_entry_dma, idx);
6764 if (status == QLA_ERROR)
6765 continue;
6766
6767 status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry);
6768 if (status == QLA_SUCCESS) {
6769 *flash_index = idx;
6770 ret = QLA_SUCCESS;
6771 goto exit_find_st_idx;
6772 }
6773 }
6774
6775 if (idx == max_ddbs)
6776 ql4_printk(KERN_ERR, ha, "Failed to find ST [%d] in flash\n",
6777 fw_idx);
6778
6779 exit_find_st_idx:
6780 if (flash_ddb_entry)
6781 dma_pool_free(ha->fw_ddb_dma_pool, flash_ddb_entry,
6782 flash_ddb_entry_dma);
6783
6784 return ret;
6785 }
6786
qla4xxx_build_st_list(struct scsi_qla_host *ha, struct list_head *list_st)6787 static void qla4xxx_build_st_list(struct scsi_qla_host *ha,
6788 struct list_head *list_st)
6789 {
6790 struct qla_ddb_index *st_ddb_idx;
6791 int max_ddbs;
6792 int fw_idx_size;
6793 struct dev_db_entry *fw_ddb_entry;
6794 dma_addr_t fw_ddb_dma;
6795 int ret;
6796 uint32_t idx = 0, next_idx = 0;
6797 uint32_t state = 0, conn_err = 0;
6798 uint32_t flash_index = -1;
6799 uint16_t conn_id = 0;
6800
6801 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
6802 &fw_ddb_dma);
6803 if (fw_ddb_entry == NULL) {
6804 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
6805 goto exit_st_list;
6806 }
6807
6808 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
6809 MAX_DEV_DB_ENTRIES;
6810 fw_idx_size = sizeof(struct qla_ddb_index);
6811
6812 for (idx = 0; idx < max_ddbs; idx = next_idx) {
6813 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
6814 NULL, &next_idx, &state,
6815 &conn_err, NULL, &conn_id);
6816 if (ret == QLA_ERROR)
6817 break;
6818
6819 /* Ignore DDB if invalid state (unassigned) */
6820 if (state == DDB_DS_UNASSIGNED)
6821 goto continue_next_st;
6822
6823 /* Check if ST, add to the list_st */
6824 if (strlen((char *) fw_ddb_entry->iscsi_name) != 0)
6825 goto continue_next_st;
6826
6827 st_ddb_idx = vzalloc(fw_idx_size);
6828 if (!st_ddb_idx)
6829 break;
6830
6831 ret = qla4xxx_find_flash_st_idx(ha, fw_ddb_entry, idx,
6832 &flash_index);
6833 if (ret == QLA_ERROR) {
6834 ql4_printk(KERN_ERR, ha,
6835 "No flash entry for ST at idx [%d]\n", idx);
6836 st_ddb_idx->flash_ddb_idx = idx;
6837 } else {
6838 ql4_printk(KERN_INFO, ha,
6839 "ST at idx [%d] is stored at flash [%d]\n",
6840 idx, flash_index);
6841 st_ddb_idx->flash_ddb_idx = flash_index;
6842 }
6843
6844 st_ddb_idx->fw_ddb_idx = idx;
6845
6846 list_add_tail(&st_ddb_idx->list, list_st);
6847 continue_next_st:
6848 if (next_idx == 0)
6849 break;
6850 }
6851
6852 exit_st_list:
6853 if (fw_ddb_entry)
6854 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
6855 }
6856
6857 /**
6858 * qla4xxx_remove_failed_ddb - Remove inactive or failed ddb from list
6859 * @ha: pointer to adapter structure
6860 * @list_ddb: List from which failed ddb to be removed
6861 *
6862 * Iterate over the list of DDBs and find and remove DDBs that are either in
6863 * no connection active state or failed state
6864 **/
qla4xxx_remove_failed_ddb(struct scsi_qla_host *ha, struct list_head *list_ddb)6865 static void qla4xxx_remove_failed_ddb(struct scsi_qla_host *ha,
6866 struct list_head *list_ddb)
6867 {
6868 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
6869 uint32_t next_idx = 0;
6870 uint32_t state = 0, conn_err = 0;
6871 int ret;
6872
6873 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
6874 ret = qla4xxx_get_fwddb_entry(ha, ddb_idx->fw_ddb_idx,
6875 NULL, 0, NULL, &next_idx, &state,
6876 &conn_err, NULL, NULL);
6877 if (ret == QLA_ERROR)
6878 continue;
6879
6880 if (state == DDB_DS_NO_CONNECTION_ACTIVE ||
6881 state == DDB_DS_SESSION_FAILED) {
6882 list_del_init(&ddb_idx->list);
6883 vfree(ddb_idx);
6884 }
6885 }
6886 }
6887
qla4xxx_update_sess_disc_idx(struct scsi_qla_host *ha, struct ddb_entry *ddb_entry, struct dev_db_entry *fw_ddb_entry)6888 static void qla4xxx_update_sess_disc_idx(struct scsi_qla_host *ha,
6889 struct ddb_entry *ddb_entry,
6890 struct dev_db_entry *fw_ddb_entry)
6891 {
6892 struct iscsi_cls_session *cls_sess;
6893 struct iscsi_session *sess;
6894 uint32_t max_ddbs = 0;
6895 uint16_t ddb_link = -1;
6896
6897 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
6898 MAX_DEV_DB_ENTRIES;
6899
6900 cls_sess = ddb_entry->sess;
6901 sess = cls_sess->dd_data;
6902
6903 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
6904 if (ddb_link < max_ddbs)
6905 sess->discovery_parent_idx = ddb_link;
6906 else
6907 sess->discovery_parent_idx = DDB_NO_LINK;
6908 }
6909
qla4xxx_sess_conn_setup(struct scsi_qla_host *ha, struct dev_db_entry *fw_ddb_entry, int is_reset, uint16_t idx)6910 static int qla4xxx_sess_conn_setup(struct scsi_qla_host *ha,
6911 struct dev_db_entry *fw_ddb_entry,
6912 int is_reset, uint16_t idx)
6913 {
6914 struct iscsi_cls_session *cls_sess;
6915 struct iscsi_session *sess;
6916 struct iscsi_cls_conn *cls_conn;
6917 struct iscsi_endpoint *ep;
6918 uint16_t cmds_max = 32;
6919 uint16_t conn_id = 0;
6920 uint32_t initial_cmdsn = 0;
6921 int ret = QLA_SUCCESS;
6922
6923 struct ddb_entry *ddb_entry = NULL;
6924
6925 /* Create session object, with INVALID_ENTRY,
6926 * the targer_id would get set when we issue the login
6927 */
6928 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, ha->host,
6929 cmds_max, sizeof(struct ddb_entry),
6930 sizeof(struct ql4_task_data),
6931 initial_cmdsn, INVALID_ENTRY);
6932 if (!cls_sess) {
6933 ret = QLA_ERROR;
6934 goto exit_setup;
6935 }
6936
6937 /*
6938 * so calling module_put function to decrement the
6939 * reference count.
6940 **/
6941 module_put(qla4xxx_iscsi_transport.owner);
6942 sess = cls_sess->dd_data;
6943 ddb_entry = sess->dd_data;
6944 ddb_entry->sess = cls_sess;
6945
6946 cls_sess->recovery_tmo = ql4xsess_recovery_tmo;
6947 memcpy(&ddb_entry->fw_ddb_entry, fw_ddb_entry,
6948 sizeof(struct dev_db_entry));
6949
6950 qla4xxx_setup_flash_ddb_entry(ha, ddb_entry, idx);
6951
6952 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), conn_id);
6953
6954 if (!cls_conn) {
6955 ret = QLA_ERROR;
6956 goto exit_setup;
6957 }
6958
6959 ddb_entry->conn = cls_conn;
6960
6961 /* Setup ep, for displaying attributes in sysfs */
6962 ep = qla4xxx_get_ep_fwdb(ha, fw_ddb_entry);
6963 if (ep) {
6964 ep->conn = cls_conn;
6965 cls_conn->ep = ep;
6966 } else {
6967 DEBUG2(ql4_printk(KERN_ERR, ha, "Unable to get ep\n"));
6968 ret = QLA_ERROR;
6969 goto exit_setup;
6970 }
6971
6972 /* Update sess/conn params */
6973 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn);
6974 qla4xxx_update_sess_disc_idx(ha, ddb_entry, fw_ddb_entry);
6975
6976 if (is_reset == RESET_ADAPTER) {
6977 iscsi_block_session(cls_sess);
6978 /* Use the relogin path to discover new devices
6979 * by short-circuting the logic of setting
6980 * timer to relogin - instead set the flags
6981 * to initiate login right away.
6982 */
6983 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
6984 set_bit(DF_RELOGIN, &ddb_entry->flags);
6985 }
6986
6987 exit_setup:
6988 return ret;
6989 }
6990
qla4xxx_update_fw_ddb_link(struct scsi_qla_host *ha, struct list_head *list_ddb, struct dev_db_entry *fw_ddb_entry)6991 static void qla4xxx_update_fw_ddb_link(struct scsi_qla_host *ha,
6992 struct list_head *list_ddb,
6993 struct dev_db_entry *fw_ddb_entry)
6994 {
6995 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
6996 uint16_t ddb_link;
6997
6998 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
6999
7000 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
7001 if (ddb_idx->fw_ddb_idx == ddb_link) {
7002 DEBUG2(ql4_printk(KERN_INFO, ha,
7003 "Updating NT parent idx from [%d] to [%d]\n",
7004 ddb_link, ddb_idx->flash_ddb_idx));
7005 fw_ddb_entry->ddb_link =
7006 cpu_to_le16(ddb_idx->flash_ddb_idx);
7007 return;
7008 }
7009 }
7010 }
7011
qla4xxx_build_nt_list(struct scsi_qla_host *ha, struct list_head *list_nt, struct list_head *list_st, int is_reset)7012 static void qla4xxx_build_nt_list(struct scsi_qla_host *ha,
7013 struct list_head *list_nt,
7014 struct list_head *list_st,
7015 int is_reset)
7016 {
7017 struct dev_db_entry *fw_ddb_entry;
7018 struct ddb_entry *ddb_entry = NULL;
7019 dma_addr_t fw_ddb_dma;
7020 int max_ddbs;
7021 int fw_idx_size;
7022 int ret;
7023 uint32_t idx = 0, next_idx = 0;
7024 uint32_t state = 0, conn_err = 0;
7025 uint32_t ddb_idx = -1;
7026 uint16_t conn_id = 0;
7027 uint16_t ddb_link = -1;
7028 struct qla_ddb_index *nt_ddb_idx;
7029
7030 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
7031 &fw_ddb_dma);
7032 if (fw_ddb_entry == NULL) {
7033 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
7034 goto exit_nt_list;
7035 }
7036 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
7037 MAX_DEV_DB_ENTRIES;
7038 fw_idx_size = sizeof(struct qla_ddb_index);
7039
7040 for (idx = 0; idx < max_ddbs; idx = next_idx) {
7041 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
7042 NULL, &next_idx, &state,
7043 &conn_err, NULL, &conn_id);
7044 if (ret == QLA_ERROR)
7045 break;
7046
7047 if (qla4xxx_verify_boot_idx(ha, idx) != QLA_SUCCESS)
7048 goto continue_next_nt;
7049
7050 /* Check if NT, then add to list it */
7051 if (strlen((char *) fw_ddb_entry->iscsi_name) == 0)
7052 goto continue_next_nt;
7053
7054 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
7055 if (ddb_link < max_ddbs)
7056 qla4xxx_update_fw_ddb_link(ha, list_st, fw_ddb_entry);
7057
7058 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE ||
7059 state == DDB_DS_SESSION_FAILED) &&
7060 (is_reset == INIT_ADAPTER))
7061 goto continue_next_nt;
7062
7063 DEBUG2(ql4_printk(KERN_INFO, ha,
7064 "Adding DDB to session = 0x%x\n", idx));
7065
7066 if (is_reset == INIT_ADAPTER) {
7067 nt_ddb_idx = vmalloc(fw_idx_size);
7068 if (!nt_ddb_idx)
7069 break;
7070
7071 nt_ddb_idx->fw_ddb_idx = idx;
7072
7073 /* Copy original isid as it may get updated in function
7074 * qla4xxx_update_isid(). We need original isid in
7075 * function qla4xxx_compare_tuple_ddb to find duplicate
7076 * target */
7077 memcpy(&nt_ddb_idx->flash_isid[0],
7078 &fw_ddb_entry->isid[0],
7079 sizeof(nt_ddb_idx->flash_isid));
7080
7081 ret = qla4xxx_is_flash_ddb_exists(ha, list_nt,
7082 fw_ddb_entry);
7083 if (ret == QLA_SUCCESS) {
7084 /* free nt_ddb_idx and do not add to list_nt */
7085 vfree(nt_ddb_idx);
7086 goto continue_next_nt;
7087 }
7088
7089 /* Copy updated isid */
7090 memcpy(&nt_ddb_idx->fw_ddb, fw_ddb_entry,
7091 sizeof(struct dev_db_entry));
7092
7093 list_add_tail(&nt_ddb_idx->list, list_nt);
7094 } else if (is_reset == RESET_ADAPTER) {
7095 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry,
7096 &ddb_idx);
7097 if (ret == QLA_SUCCESS) {
7098 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha,
7099 ddb_idx);
7100 if (ddb_entry != NULL)
7101 qla4xxx_update_sess_disc_idx(ha,
7102 ddb_entry,
7103 fw_ddb_entry);
7104 goto continue_next_nt;
7105 }
7106 }
7107
7108 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, is_reset, idx);
7109 if (ret == QLA_ERROR)
7110 goto exit_nt_list;
7111
7112 continue_next_nt:
7113 if (next_idx == 0)
7114 break;
7115 }
7116
7117 exit_nt_list:
7118 if (fw_ddb_entry)
7119 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
7120 }
7121
qla4xxx_build_new_nt_list(struct scsi_qla_host *ha, struct list_head *list_nt, uint16_t target_id)7122 static void qla4xxx_build_new_nt_list(struct scsi_qla_host *ha,
7123 struct list_head *list_nt,
7124 uint16_t target_id)
7125 {
7126 struct dev_db_entry *fw_ddb_entry;
7127 dma_addr_t fw_ddb_dma;
7128 int max_ddbs;
7129 int fw_idx_size;
7130 int ret;
7131 uint32_t idx = 0, next_idx = 0;
7132 uint32_t state = 0, conn_err = 0;
7133 uint16_t conn_id = 0;
7134 struct qla_ddb_index *nt_ddb_idx;
7135
7136 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
7137 &fw_ddb_dma);
7138 if (fw_ddb_entry == NULL) {
7139 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
7140 goto exit_new_nt_list;
7141 }
7142 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
7143 MAX_DEV_DB_ENTRIES;
7144 fw_idx_size = sizeof(struct qla_ddb_index);
7145
7146 for (idx = 0; idx < max_ddbs; idx = next_idx) {
7147 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
7148 NULL, &next_idx, &state,
7149 &conn_err, NULL, &conn_id);
7150 if (ret == QLA_ERROR)
7151 break;
7152
7153 /* Check if NT, then add it to list */
7154 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0)
7155 goto continue_next_new_nt;
7156
7157 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE))
7158 goto continue_next_new_nt;
7159
7160 DEBUG2(ql4_printk(KERN_INFO, ha,
7161 "Adding DDB to session = 0x%x\n", idx));
7162
7163 nt_ddb_idx = vmalloc(fw_idx_size);
7164 if (!nt_ddb_idx)
7165 break;
7166
7167 nt_ddb_idx->fw_ddb_idx = idx;
7168
7169 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL);
7170 if (ret == QLA_SUCCESS) {
7171 /* free nt_ddb_idx and do not add to list_nt */
7172 vfree(nt_ddb_idx);
7173 goto continue_next_new_nt;
7174 }
7175
7176 if (target_id < max_ddbs)
7177 fw_ddb_entry->ddb_link = cpu_to_le16(target_id);
7178
7179 list_add_tail(&nt_ddb_idx->list, list_nt);
7180
7181 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER,
7182 idx);
7183 if (ret == QLA_ERROR)
7184 goto exit_new_nt_list;
7185
7186 continue_next_new_nt:
7187 if (next_idx == 0)
7188 break;
7189 }
7190
7191 exit_new_nt_list:
7192 if (fw_ddb_entry)
7193 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
7194 }
7195
7196 /**
7197 * qla4xxx_sysfs_ddb_is_non_persistent - check for non-persistence of ddb entry
7198 * @dev: dev associated with the sysfs entry
7199 * @data: pointer to flashnode session object
7200 *
7201 * Returns:
7202 * 1: if flashnode entry is non-persistent
7203 * 0: if flashnode entry is persistent
7204 **/
qla4xxx_sysfs_ddb_is_non_persistent(struct device *dev, void *data)7205 static int qla4xxx_sysfs_ddb_is_non_persistent(struct device *dev, void *data)
7206 {
7207 struct iscsi_bus_flash_session *fnode_sess;
7208
7209 if (!iscsi_flashnode_bus_match(dev, NULL))
7210 return 0;
7211
7212 fnode_sess = iscsi_dev_to_flash_session(dev);
7213
7214 return (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT);
7215 }
7216
7217 /**
7218 * qla4xxx_sysfs_ddb_tgt_create - Create sysfs entry for target
7219 * @ha: pointer to host
7220 * @fw_ddb_entry: flash ddb data
7221 * @idx: target index
7222 * @user: if set then this call is made from userland else from kernel
7223 *
7224 * Returns:
7225 * On sucess: QLA_SUCCESS
7226 * On failure: QLA_ERROR
7227 *
7228 * This create separate sysfs entries for session and connection attributes of
7229 * the given fw ddb entry.
7230 * If this is invoked as a result of a userspace call then the entry is marked
7231 * as nonpersistent using flash_state field.
7232 **/
qla4xxx_sysfs_ddb_tgt_create(struct scsi_qla_host *ha, struct dev_db_entry *fw_ddb_entry, uint16_t *idx, int user)7233 static int qla4xxx_sysfs_ddb_tgt_create(struct scsi_qla_host *ha,
7234 struct dev_db_entry *fw_ddb_entry,
7235 uint16_t *idx, int user)
7236 {
7237 struct iscsi_bus_flash_session *fnode_sess = NULL;
7238 struct iscsi_bus_flash_conn *fnode_conn = NULL;
7239 int rc = QLA_ERROR;
7240
7241 fnode_sess = iscsi_create_flashnode_sess(ha->host, *idx,
7242 &qla4xxx_iscsi_transport, 0);
7243 if (!fnode_sess) {
7244 ql4_printk(KERN_ERR, ha,
7245 "%s: Unable to create session sysfs entry for flashnode %d of host%lu\n",
7246 __func__, *idx, ha->host_no);
7247 goto exit_tgt_create;
7248 }
7249
7250 fnode_conn = iscsi_create_flashnode_conn(ha->host, fnode_sess,
7251 &qla4xxx_iscsi_transport, 0);
7252 if (!fnode_conn) {
7253 ql4_printk(KERN_ERR, ha,
7254 "%s: Unable to create conn sysfs entry for flashnode %d of host%lu\n",
7255 __func__, *idx, ha->host_no);
7256 goto free_sess;
7257 }
7258
7259 if (user) {
7260 fnode_sess->flash_state = DEV_DB_NON_PERSISTENT;
7261 } else {
7262 fnode_sess->flash_state = DEV_DB_PERSISTENT;
7263
7264 if (*idx == ha->pri_ddb_idx || *idx == ha->sec_ddb_idx)
7265 fnode_sess->is_boot_target = 1;
7266 else
7267 fnode_sess->is_boot_target = 0;
7268 }
7269
7270 rc = qla4xxx_copy_from_fwddb_param(fnode_sess, fnode_conn,
7271 fw_ddb_entry);
7272 if (rc)
7273 goto free_sess;
7274
7275 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n",
7276 __func__, fnode_sess->dev.kobj.name);
7277
7278 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n",
7279 __func__, fnode_conn->dev.kobj.name);
7280
7281 return QLA_SUCCESS;
7282
7283 free_sess:
7284 iscsi_destroy_flashnode_sess(fnode_sess);
7285
7286 exit_tgt_create:
7287 return QLA_ERROR;
7288 }
7289
7290 /**
7291 * qla4xxx_sysfs_ddb_add - Add new ddb entry in flash
7292 * @shost: pointer to host
7293 * @buf: type of ddb entry (ipv4/ipv6)
7294 * @len: length of buf
7295 *
7296 * This creates new ddb entry in the flash by finding first free index and
7297 * storing default ddb there. And then create sysfs entry for the new ddb entry.
7298 **/
qla4xxx_sysfs_ddb_add(struct Scsi_Host *shost, const char *buf, int len)7299 static int qla4xxx_sysfs_ddb_add(struct Scsi_Host *shost, const char *buf,
7300 int len)
7301 {
7302 struct scsi_qla_host *ha = to_qla_host(shost);
7303 struct dev_db_entry *fw_ddb_entry = NULL;
7304 dma_addr_t fw_ddb_entry_dma;
7305 struct device *dev;
7306 uint16_t idx = 0;
7307 uint16_t max_ddbs = 0;
7308 uint32_t options = 0;
7309 uint32_t rval = QLA_ERROR;
7310
7311 if (strncasecmp(PORTAL_TYPE_IPV4, buf, 4) &&
7312 strncasecmp(PORTAL_TYPE_IPV6, buf, 4)) {
7313 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Invalid portal type\n",
7314 __func__));
7315 goto exit_ddb_add;
7316 }
7317
7318 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES :
7319 MAX_DEV_DB_ENTRIES;
7320
7321 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7322 &fw_ddb_entry_dma, GFP_KERNEL);
7323 if (!fw_ddb_entry) {
7324 DEBUG2(ql4_printk(KERN_ERR, ha,
7325 "%s: Unable to allocate dma buffer\n",
7326 __func__));
7327 goto exit_ddb_add;
7328 }
7329
7330 dev = iscsi_find_flashnode_sess(ha->host, NULL,
7331 qla4xxx_sysfs_ddb_is_non_persistent);
7332 if (dev) {
7333 ql4_printk(KERN_ERR, ha,
7334 "%s: A non-persistent entry %s found\n",
7335 __func__, dev->kobj.name);
7336 put_device(dev);
7337 goto exit_ddb_add;
7338 }
7339
7340 /* Index 0 and 1 are reserved for boot target entries */
7341 for (idx = 2; idx < max_ddbs; idx++) {
7342 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry,
7343 fw_ddb_entry_dma, idx))
7344 break;
7345 }
7346
7347 if (idx == max_ddbs)
7348 goto exit_ddb_add;
7349
7350 if (!strncasecmp("ipv6", buf, 4))
7351 options |= IPV6_DEFAULT_DDB_ENTRY;
7352
7353 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
7354 if (rval == QLA_ERROR)
7355 goto exit_ddb_add;
7356
7357 rval = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 1);
7358
7359 exit_ddb_add:
7360 if (fw_ddb_entry)
7361 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7362 fw_ddb_entry, fw_ddb_entry_dma);
7363 if (rval == QLA_SUCCESS)
7364 return idx;
7365 else
7366 return -EIO;
7367 }
7368
7369 /**
7370 * qla4xxx_sysfs_ddb_apply - write the target ddb contents to Flash
7371 * @fnode_sess: pointer to session attrs of flash ddb entry
7372 * @fnode_conn: pointer to connection attrs of flash ddb entry
7373 *
7374 * This writes the contents of target ddb buffer to Flash with a valid cookie
7375 * value in order to make the ddb entry persistent.
7376 **/
qla4xxx_sysfs_ddb_apply(struct iscsi_bus_flash_session *fnode_sess, struct iscsi_bus_flash_conn *fnode_conn)7377 static int qla4xxx_sysfs_ddb_apply(struct iscsi_bus_flash_session *fnode_sess,
7378 struct iscsi_bus_flash_conn *fnode_conn)
7379 {
7380 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7381 struct scsi_qla_host *ha = to_qla_host(shost);
7382 uint32_t dev_db_start_offset = FLASH_OFFSET_DB_INFO;
7383 struct dev_db_entry *fw_ddb_entry = NULL;
7384 dma_addr_t fw_ddb_entry_dma;
7385 uint32_t options = 0;
7386 int rval = 0;
7387
7388 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7389 &fw_ddb_entry_dma, GFP_KERNEL);
7390 if (!fw_ddb_entry) {
7391 DEBUG2(ql4_printk(KERN_ERR, ha,
7392 "%s: Unable to allocate dma buffer\n",
7393 __func__));
7394 rval = -ENOMEM;
7395 goto exit_ddb_apply;
7396 }
7397
7398 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7399 options |= IPV6_DEFAULT_DDB_ENTRY;
7400
7401 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
7402 if (rval == QLA_ERROR)
7403 goto exit_ddb_apply;
7404
7405 dev_db_start_offset += (fnode_sess->target_id *
7406 sizeof(*fw_ddb_entry));
7407
7408 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry);
7409 fw_ddb_entry->cookie = DDB_VALID_COOKIE;
7410
7411 rval = qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset,
7412 sizeof(*fw_ddb_entry), FLASH_OPT_RMW_COMMIT);
7413
7414 if (rval == QLA_SUCCESS) {
7415 fnode_sess->flash_state = DEV_DB_PERSISTENT;
7416 ql4_printk(KERN_INFO, ha,
7417 "%s: flash node %u of host %lu written to flash\n",
7418 __func__, fnode_sess->target_id, ha->host_no);
7419 } else {
7420 rval = -EIO;
7421 ql4_printk(KERN_ERR, ha,
7422 "%s: Error while writing flash node %u of host %lu to flash\n",
7423 __func__, fnode_sess->target_id, ha->host_no);
7424 }
7425
7426 exit_ddb_apply:
7427 if (fw_ddb_entry)
7428 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7429 fw_ddb_entry, fw_ddb_entry_dma);
7430 return rval;
7431 }
7432
qla4xxx_sysfs_ddb_conn_open(struct scsi_qla_host *ha, struct dev_db_entry *fw_ddb_entry, uint16_t idx)7433 static ssize_t qla4xxx_sysfs_ddb_conn_open(struct scsi_qla_host *ha,
7434 struct dev_db_entry *fw_ddb_entry,
7435 uint16_t idx)
7436 {
7437 struct dev_db_entry *ddb_entry = NULL;
7438 dma_addr_t ddb_entry_dma;
7439 unsigned long wtime;
7440 uint32_t mbx_sts = 0;
7441 uint32_t state = 0, conn_err = 0;
7442 uint16_t tmo = 0;
7443 int ret = 0;
7444
7445 ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*ddb_entry),
7446 &ddb_entry_dma, GFP_KERNEL);
7447 if (!ddb_entry) {
7448 DEBUG2(ql4_printk(KERN_ERR, ha,
7449 "%s: Unable to allocate dma buffer\n",
7450 __func__));
7451 return QLA_ERROR;
7452 }
7453
7454 memcpy(ddb_entry, fw_ddb_entry, sizeof(*ddb_entry));
7455
7456 ret = qla4xxx_set_ddb_entry(ha, idx, ddb_entry_dma, &mbx_sts);
7457 if (ret != QLA_SUCCESS) {
7458 DEBUG2(ql4_printk(KERN_ERR, ha,
7459 "%s: Unable to set ddb entry for index %d\n",
7460 __func__, idx));
7461 goto exit_ddb_conn_open;
7462 }
7463
7464 qla4xxx_conn_open(ha, idx);
7465
7466 /* To ensure that sendtargets is done, wait for at least 12 secs */
7467 tmo = ((ha->def_timeout > LOGIN_TOV) &&
7468 (ha->def_timeout < LOGIN_TOV * 10) ?
7469 ha->def_timeout : LOGIN_TOV);
7470
7471 DEBUG2(ql4_printk(KERN_INFO, ha,
7472 "Default time to wait for login to ddb %d\n", tmo));
7473
7474 wtime = jiffies + (HZ * tmo);
7475 do {
7476 ret = qla4xxx_get_fwddb_entry(ha, idx, NULL, 0, NULL,
7477 NULL, &state, &conn_err, NULL,
7478 NULL);
7479 if (ret == QLA_ERROR)
7480 continue;
7481
7482 if (state == DDB_DS_NO_CONNECTION_ACTIVE ||
7483 state == DDB_DS_SESSION_FAILED)
7484 break;
7485
7486 schedule_timeout_uninterruptible(HZ / 10);
7487 } while (time_after(wtime, jiffies));
7488
7489 exit_ddb_conn_open:
7490 if (ddb_entry)
7491 dma_free_coherent(&ha->pdev->dev, sizeof(*ddb_entry),
7492 ddb_entry, ddb_entry_dma);
7493 return ret;
7494 }
7495
qla4xxx_ddb_login_st(struct scsi_qla_host *ha, struct dev_db_entry *fw_ddb_entry, uint16_t target_id)7496 static int qla4xxx_ddb_login_st(struct scsi_qla_host *ha,
7497 struct dev_db_entry *fw_ddb_entry,
7498 uint16_t target_id)
7499 {
7500 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
7501 struct list_head list_nt;
7502 uint16_t ddb_index;
7503 int ret = 0;
7504
7505 if (test_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags)) {
7506 ql4_printk(KERN_WARNING, ha,
7507 "%s: A discovery already in progress!\n", __func__);
7508 return QLA_ERROR;
7509 }
7510
7511 INIT_LIST_HEAD(&list_nt);
7512
7513 set_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags);
7514
7515 ret = qla4xxx_get_ddb_index(ha, &ddb_index);
7516 if (ret == QLA_ERROR)
7517 goto exit_login_st_clr_bit;
7518
7519 ret = qla4xxx_sysfs_ddb_conn_open(ha, fw_ddb_entry, ddb_index);
7520 if (ret == QLA_ERROR)
7521 goto exit_login_st;
7522
7523 qla4xxx_build_new_nt_list(ha, &list_nt, target_id);
7524
7525 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, &list_nt, list) {
7526 list_del_init(&ddb_idx->list);
7527 qla4xxx_clear_ddb_entry(ha, ddb_idx->fw_ddb_idx);
7528 vfree(ddb_idx);
7529 }
7530
7531 exit_login_st:
7532 if (qla4xxx_clear_ddb_entry(ha, ddb_index) == QLA_ERROR) {
7533 ql4_printk(KERN_ERR, ha,
7534 "Unable to clear DDB index = 0x%x\n", ddb_index);
7535 }
7536
7537 clear_bit(ddb_index, ha->ddb_idx_map);
7538
7539 exit_login_st_clr_bit:
7540 clear_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags);
7541 return ret;
7542 }
7543
qla4xxx_ddb_login_nt(struct scsi_qla_host *ha, struct dev_db_entry *fw_ddb_entry, uint16_t idx)7544 static int qla4xxx_ddb_login_nt(struct scsi_qla_host *ha,
7545 struct dev_db_entry *fw_ddb_entry,
7546 uint16_t idx)
7547 {
7548 int ret = QLA_ERROR;
7549
7550 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL);
7551 if (ret != QLA_SUCCESS)
7552 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER,
7553 idx);
7554 else
7555 ret = -EPERM;
7556
7557 return ret;
7558 }
7559
7560 /**
7561 * qla4xxx_sysfs_ddb_login - Login to the specified target
7562 * @fnode_sess: pointer to session attrs of flash ddb entry
7563 * @fnode_conn: pointer to connection attrs of flash ddb entry
7564 *
7565 * This logs in to the specified target
7566 **/
qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess, struct iscsi_bus_flash_conn *fnode_conn)7567 static int qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess,
7568 struct iscsi_bus_flash_conn *fnode_conn)
7569 {
7570 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7571 struct scsi_qla_host *ha = to_qla_host(shost);
7572 struct dev_db_entry *fw_ddb_entry = NULL;
7573 dma_addr_t fw_ddb_entry_dma;
7574 uint32_t options = 0;
7575 int ret = 0;
7576
7577 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT) {
7578 ql4_printk(KERN_ERR, ha,
7579 "%s: Target info is not persistent\n", __func__);
7580 ret = -EIO;
7581 goto exit_ddb_login;
7582 }
7583
7584 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7585 &fw_ddb_entry_dma, GFP_KERNEL);
7586 if (!fw_ddb_entry) {
7587 DEBUG2(ql4_printk(KERN_ERR, ha,
7588 "%s: Unable to allocate dma buffer\n",
7589 __func__));
7590 ret = -ENOMEM;
7591 goto exit_ddb_login;
7592 }
7593
7594 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7595 options |= IPV6_DEFAULT_DDB_ENTRY;
7596
7597 ret = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
7598 if (ret == QLA_ERROR)
7599 goto exit_ddb_login;
7600
7601 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry);
7602 fw_ddb_entry->cookie = DDB_VALID_COOKIE;
7603
7604 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0)
7605 ret = qla4xxx_ddb_login_st(ha, fw_ddb_entry,
7606 fnode_sess->target_id);
7607 else
7608 ret = qla4xxx_ddb_login_nt(ha, fw_ddb_entry,
7609 fnode_sess->target_id);
7610
7611 if (ret > 0)
7612 ret = -EIO;
7613
7614 exit_ddb_login:
7615 if (fw_ddb_entry)
7616 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7617 fw_ddb_entry, fw_ddb_entry_dma);
7618 return ret;
7619 }
7620
7621 /**
7622 * qla4xxx_sysfs_ddb_logout_sid - Logout session for the specified target
7623 * @cls_sess: pointer to session to be logged out
7624 *
7625 * This performs session log out from the specified target
7626 **/
qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess)7627 static int qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess)
7628 {
7629 struct iscsi_session *sess;
7630 struct ddb_entry *ddb_entry = NULL;
7631 struct scsi_qla_host *ha;
7632 struct dev_db_entry *fw_ddb_entry = NULL;
7633 dma_addr_t fw_ddb_entry_dma;
7634 unsigned long flags;
7635 unsigned long wtime;
7636 uint32_t ddb_state;
7637 int options;
7638 int ret = 0;
7639
7640 sess = cls_sess->dd_data;
7641 ddb_entry = sess->dd_data;
7642 ha = ddb_entry->ha;
7643
7644 if (ddb_entry->ddb_type != FLASH_DDB) {
7645 ql4_printk(KERN_ERR, ha, "%s: Not a flash node session\n",
7646 __func__);
7647 ret = -ENXIO;
7648 goto exit_ddb_logout;
7649 }
7650
7651 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) {
7652 ql4_printk(KERN_ERR, ha,
7653 "%s: Logout from boot target entry is not permitted.\n",
7654 __func__);
7655 ret = -EPERM;
7656 goto exit_ddb_logout;
7657 }
7658
7659 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7660 &fw_ddb_entry_dma, GFP_KERNEL);
7661 if (!fw_ddb_entry) {
7662 ql4_printk(KERN_ERR, ha,
7663 "%s: Unable to allocate dma buffer\n", __func__);
7664 ret = -ENOMEM;
7665 goto exit_ddb_logout;
7666 }
7667
7668 if (test_and_set_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags))
7669 goto ddb_logout_init;
7670
7671 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
7672 fw_ddb_entry, fw_ddb_entry_dma,
7673 NULL, NULL, &ddb_state, NULL,
7674 NULL, NULL);
7675 if (ret == QLA_ERROR)
7676 goto ddb_logout_init;
7677
7678 if (ddb_state == DDB_DS_SESSION_ACTIVE)
7679 goto ddb_logout_init;
7680
7681 /* wait until next relogin is triggered using DF_RELOGIN and
7682 * clear DF_RELOGIN to avoid invocation of further relogin
7683 */
7684 wtime = jiffies + (HZ * RELOGIN_TOV);
7685 do {
7686 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags))
7687 goto ddb_logout_init;
7688
7689 schedule_timeout_uninterruptible(HZ);
7690 } while ((time_after(wtime, jiffies)));
7691
7692 ddb_logout_init:
7693 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY);
7694 atomic_set(&ddb_entry->relogin_timer, 0);
7695
7696 options = LOGOUT_OPTION_CLOSE_SESSION;
7697 qla4xxx_session_logout_ddb(ha, ddb_entry, options);
7698
7699 memset(fw_ddb_entry, 0, sizeof(*fw_ddb_entry));
7700 wtime = jiffies + (HZ * LOGOUT_TOV);
7701 do {
7702 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
7703 fw_ddb_entry, fw_ddb_entry_dma,
7704 NULL, NULL, &ddb_state, NULL,
7705 NULL, NULL);
7706 if (ret == QLA_ERROR)
7707 goto ddb_logout_clr_sess;
7708
7709 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) ||
7710 (ddb_state == DDB_DS_SESSION_FAILED))
7711 goto ddb_logout_clr_sess;
7712
7713 schedule_timeout_uninterruptible(HZ);
7714 } while ((time_after(wtime, jiffies)));
7715
7716 ddb_logout_clr_sess:
7717 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
7718 /*
7719 * we have decremented the reference count of the driver
7720 * when we setup the session to have the driver unload
7721 * to be seamless without actually destroying the
7722 * session
7723 **/
7724 try_module_get(qla4xxx_iscsi_transport.owner);
7725 iscsi_destroy_endpoint(ddb_entry->conn->ep);
7726
7727 spin_lock_irqsave(&ha->hardware_lock, flags);
7728 qla4xxx_free_ddb(ha, ddb_entry);
7729 clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map);
7730 spin_unlock_irqrestore(&ha->hardware_lock, flags);
7731
7732 iscsi_session_teardown(ddb_entry->sess);
7733
7734 clear_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags);
7735 ret = QLA_SUCCESS;
7736
7737 exit_ddb_logout:
7738 if (fw_ddb_entry)
7739 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7740 fw_ddb_entry, fw_ddb_entry_dma);
7741 return ret;
7742 }
7743
7744 /**
7745 * qla4xxx_sysfs_ddb_logout - Logout from the specified target
7746 * @fnode_sess: pointer to session attrs of flash ddb entry
7747 * @fnode_conn: pointer to connection attrs of flash ddb entry
7748 *
7749 * This performs log out from the specified target
7750 **/
qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess, struct iscsi_bus_flash_conn *fnode_conn)7751 static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess,
7752 struct iscsi_bus_flash_conn *fnode_conn)
7753 {
7754 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7755 struct scsi_qla_host *ha = to_qla_host(shost);
7756 struct ql4_tuple_ddb *flash_tddb = NULL;
7757 struct ql4_tuple_ddb *tmp_tddb = NULL;
7758 struct dev_db_entry *fw_ddb_entry = NULL;
7759 struct ddb_entry *ddb_entry = NULL;
7760 dma_addr_t fw_ddb_dma;
7761 uint32_t next_idx = 0;
7762 uint32_t state = 0, conn_err = 0;
7763 uint16_t conn_id = 0;
7764 int idx, index;
7765 int status, ret = 0;
7766
7767 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
7768 &fw_ddb_dma);
7769 if (fw_ddb_entry == NULL) {
7770 ql4_printk(KERN_ERR, ha, "%s:Out of memory\n", __func__);
7771 ret = -ENOMEM;
7772 goto exit_ddb_logout;
7773 }
7774
7775 flash_tddb = vzalloc(sizeof(*flash_tddb));
7776 if (!flash_tddb) {
7777 ql4_printk(KERN_WARNING, ha,
7778 "%s:Memory Allocation failed.\n", __func__);
7779 ret = -ENOMEM;
7780 goto exit_ddb_logout;
7781 }
7782
7783 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
7784 if (!tmp_tddb) {
7785 ql4_printk(KERN_WARNING, ha,
7786 "%s:Memory Allocation failed.\n", __func__);
7787 ret = -ENOMEM;
7788 goto exit_ddb_logout;
7789 }
7790
7791 if (!fnode_sess->targetname) {
7792 ql4_printk(KERN_ERR, ha,
7793 "%s:Cannot logout from SendTarget entry\n",
7794 __func__);
7795 ret = -EPERM;
7796 goto exit_ddb_logout;
7797 }
7798
7799 if (fnode_sess->is_boot_target) {
7800 ql4_printk(KERN_ERR, ha,
7801 "%s: Logout from boot target entry is not permitted.\n",
7802 __func__);
7803 ret = -EPERM;
7804 goto exit_ddb_logout;
7805 }
7806
7807 strlcpy(flash_tddb->iscsi_name, fnode_sess->targetname,
7808 ISCSI_NAME_SIZE);
7809
7810 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7811 sprintf(flash_tddb->ip_addr, "%pI6", fnode_conn->ipaddress);
7812 else
7813 sprintf(flash_tddb->ip_addr, "%pI4", fnode_conn->ipaddress);
7814
7815 flash_tddb->tpgt = fnode_sess->tpgt;
7816 flash_tddb->port = fnode_conn->port;
7817
7818 COPY_ISID(flash_tddb->isid, fnode_sess->isid);
7819
7820 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
7821 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
7822 if (ddb_entry == NULL)
7823 continue;
7824
7825 if (ddb_entry->ddb_type != FLASH_DDB)
7826 continue;
7827
7828 index = ddb_entry->sess->target_id;
7829 status = qla4xxx_get_fwddb_entry(ha, index, fw_ddb_entry,
7830 fw_ddb_dma, NULL, &next_idx,
7831 &state, &conn_err, NULL,
7832 &conn_id);
7833 if (status == QLA_ERROR) {
7834 ret = -ENOMEM;
7835 break;
7836 }
7837
7838 qla4xxx_convert_param_ddb(fw_ddb_entry, tmp_tddb, NULL);
7839
7840 status = qla4xxx_compare_tuple_ddb(ha, flash_tddb, tmp_tddb,
7841 true);
7842 if (status == QLA_SUCCESS) {
7843 ret = qla4xxx_sysfs_ddb_logout_sid(ddb_entry->sess);
7844 break;
7845 }
7846 }
7847
7848 if (idx == MAX_DDB_ENTRIES)
7849 ret = -ESRCH;
7850
7851 exit_ddb_logout:
7852 if (flash_tddb)
7853 vfree(flash_tddb);
7854 if (tmp_tddb)
7855 vfree(tmp_tddb);
7856 if (fw_ddb_entry)
7857 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
7858
7859 return ret;
7860 }
7861
7862 static int
qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session *fnode_sess, int param, char *buf)7863 qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session *fnode_sess,
7864 int param, char *buf)
7865 {
7866 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7867 struct scsi_qla_host *ha = to_qla_host(shost);
7868 struct iscsi_bus_flash_conn *fnode_conn;
7869 struct ql4_chap_table chap_tbl;
7870 struct device *dev;
7871 int parent_type;
7872 int rc = 0;
7873
7874 dev = iscsi_find_flashnode_conn(fnode_sess);
7875 if (!dev)
7876 return -EIO;
7877
7878 fnode_conn = iscsi_dev_to_flash_conn(dev);
7879
7880 switch (param) {
7881 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6:
7882 rc = sprintf(buf, "%u\n", fnode_conn->is_fw_assigned_ipv6);
7883 break;
7884 case ISCSI_FLASHNODE_PORTAL_TYPE:
7885 rc = sprintf(buf, "%s\n", fnode_sess->portal_type);
7886 break;
7887 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE:
7888 rc = sprintf(buf, "%u\n", fnode_sess->auto_snd_tgt_disable);
7889 break;
7890 case ISCSI_FLASHNODE_DISCOVERY_SESS:
7891 rc = sprintf(buf, "%u\n", fnode_sess->discovery_sess);
7892 break;
7893 case ISCSI_FLASHNODE_ENTRY_EN:
7894 rc = sprintf(buf, "%u\n", fnode_sess->entry_state);
7895 break;
7896 case ISCSI_FLASHNODE_HDR_DGST_EN:
7897 rc = sprintf(buf, "%u\n", fnode_conn->hdrdgst_en);
7898 break;
7899 case ISCSI_FLASHNODE_DATA_DGST_EN:
7900 rc = sprintf(buf, "%u\n", fnode_conn->datadgst_en);
7901 break;
7902 case ISCSI_FLASHNODE_IMM_DATA_EN:
7903 rc = sprintf(buf, "%u\n", fnode_sess->imm_data_en);
7904 break;
7905 case ISCSI_FLASHNODE_INITIAL_R2T_EN:
7906 rc = sprintf(buf, "%u\n", fnode_sess->initial_r2t_en);
7907 break;
7908 case ISCSI_FLASHNODE_DATASEQ_INORDER:
7909 rc = sprintf(buf, "%u\n", fnode_sess->dataseq_inorder_en);
7910 break;
7911 case ISCSI_FLASHNODE_PDU_INORDER:
7912 rc = sprintf(buf, "%u\n", fnode_sess->pdu_inorder_en);
7913 break;
7914 case ISCSI_FLASHNODE_CHAP_AUTH_EN:
7915 rc = sprintf(buf, "%u\n", fnode_sess->chap_auth_en);
7916 break;
7917 case ISCSI_FLASHNODE_SNACK_REQ_EN:
7918 rc = sprintf(buf, "%u\n", fnode_conn->snack_req_en);
7919 break;
7920 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN:
7921 rc = sprintf(buf, "%u\n", fnode_sess->discovery_logout_en);
7922 break;
7923 case ISCSI_FLASHNODE_BIDI_CHAP_EN:
7924 rc = sprintf(buf, "%u\n", fnode_sess->bidi_chap_en);
7925 break;
7926 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL:
7927 rc = sprintf(buf, "%u\n", fnode_sess->discovery_auth_optional);
7928 break;
7929 case ISCSI_FLASHNODE_ERL:
7930 rc = sprintf(buf, "%u\n", fnode_sess->erl);
7931 break;
7932 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT:
7933 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_stat);
7934 break;
7935 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE:
7936 rc = sprintf(buf, "%u\n", fnode_conn->tcp_nagle_disable);
7937 break;
7938 case ISCSI_FLASHNODE_TCP_WSF_DISABLE:
7939 rc = sprintf(buf, "%u\n", fnode_conn->tcp_wsf_disable);
7940 break;
7941 case ISCSI_FLASHNODE_TCP_TIMER_SCALE:
7942 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timer_scale);
7943 break;
7944 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN:
7945 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_en);
7946 break;
7947 case ISCSI_FLASHNODE_IP_FRAG_DISABLE:
7948 rc = sprintf(buf, "%u\n", fnode_conn->fragment_disable);
7949 break;
7950 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH:
7951 rc = sprintf(buf, "%u\n", fnode_conn->max_recv_dlength);
7952 break;
7953 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH:
7954 rc = sprintf(buf, "%u\n", fnode_conn->max_xmit_dlength);
7955 break;
7956 case ISCSI_FLASHNODE_FIRST_BURST:
7957 rc = sprintf(buf, "%u\n", fnode_sess->first_burst);
7958 break;
7959 case ISCSI_FLASHNODE_DEF_TIME2WAIT:
7960 rc = sprintf(buf, "%u\n", fnode_sess->time2wait);
7961 break;
7962 case ISCSI_FLASHNODE_DEF_TIME2RETAIN:
7963 rc = sprintf(buf, "%u\n", fnode_sess->time2retain);
7964 break;
7965 case ISCSI_FLASHNODE_MAX_R2T:
7966 rc = sprintf(buf, "%u\n", fnode_sess->max_r2t);
7967 break;
7968 case ISCSI_FLASHNODE_KEEPALIVE_TMO:
7969 rc = sprintf(buf, "%u\n", fnode_conn->keepalive_timeout);
7970 break;
7971 case ISCSI_FLASHNODE_ISID:
7972 rc = sprintf(buf, "%pm\n", fnode_sess->isid);
7973 break;
7974 case ISCSI_FLASHNODE_TSID:
7975 rc = sprintf(buf, "%u\n", fnode_sess->tsid);
7976 break;
7977 case ISCSI_FLASHNODE_PORT:
7978 rc = sprintf(buf, "%d\n", fnode_conn->port);
7979 break;
7980 case ISCSI_FLASHNODE_MAX_BURST:
7981 rc = sprintf(buf, "%u\n", fnode_sess->max_burst);
7982 break;
7983 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO:
7984 rc = sprintf(buf, "%u\n",
7985 fnode_sess->default_taskmgmt_timeout);
7986 break;
7987 case ISCSI_FLASHNODE_IPADDR:
7988 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7989 rc = sprintf(buf, "%pI6\n", fnode_conn->ipaddress);
7990 else
7991 rc = sprintf(buf, "%pI4\n", fnode_conn->ipaddress);
7992 break;
7993 case ISCSI_FLASHNODE_ALIAS:
7994 if (fnode_sess->targetalias)
7995 rc = sprintf(buf, "%s\n", fnode_sess->targetalias);
7996 else
7997 rc = sprintf(buf, "\n");
7998 break;
7999 case ISCSI_FLASHNODE_REDIRECT_IPADDR:
8000 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
8001 rc = sprintf(buf, "%pI6\n",
8002 fnode_conn->redirect_ipaddr);
8003 else
8004 rc = sprintf(buf, "%pI4\n",
8005 fnode_conn->redirect_ipaddr);
8006 break;
8007 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE:
8008 rc = sprintf(buf, "%u\n", fnode_conn->max_segment_size);
8009 break;
8010 case ISCSI_FLASHNODE_LOCAL_PORT:
8011 rc = sprintf(buf, "%u\n", fnode_conn->local_port);
8012 break;
8013 case ISCSI_FLASHNODE_IPV4_TOS:
8014 rc = sprintf(buf, "%u\n", fnode_conn->ipv4_tos);
8015 break;
8016 case ISCSI_FLASHNODE_IPV6_TC:
8017 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
8018 rc = sprintf(buf, "%u\n",
8019 fnode_conn->ipv6_traffic_class);
8020 else
8021 rc = sprintf(buf, "\n");
8022 break;
8023 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL:
8024 rc = sprintf(buf, "%u\n", fnode_conn->ipv6_flow_label);
8025 break;
8026 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6:
8027 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
8028 rc = sprintf(buf, "%pI6\n",
8029 fnode_conn->link_local_ipv6_addr);
8030 else
8031 rc = sprintf(buf, "\n");
8032 break;
8033 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX:
8034 rc = sprintf(buf, "%u\n", fnode_sess->discovery_parent_idx);
8035 break;
8036 case ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE:
8037 if (fnode_sess->discovery_parent_type == DDB_ISNS)
8038 parent_type = ISCSI_DISC_PARENT_ISNS;
8039 else if (fnode_sess->discovery_parent_type == DDB_NO_LINK)
8040 parent_type = ISCSI_DISC_PARENT_UNKNOWN;
8041 else if (fnode_sess->discovery_parent_type < MAX_DDB_ENTRIES)
8042 parent_type = ISCSI_DISC_PARENT_SENDTGT;
8043 else
8044 parent_type = ISCSI_DISC_PARENT_UNKNOWN;
8045
8046 rc = sprintf(buf, "%s\n",
8047 iscsi_get_discovery_parent_name(parent_type));
8048 break;
8049 case ISCSI_FLASHNODE_NAME:
8050 if (fnode_sess->targetname)
8051 rc = sprintf(buf, "%s\n", fnode_sess->targetname);
8052 else
8053 rc = sprintf(buf, "\n");
8054 break;
8055 case ISCSI_FLASHNODE_TPGT:
8056 rc = sprintf(buf, "%u\n", fnode_sess->tpgt);
8057 break;
8058 case ISCSI_FLASHNODE_TCP_XMIT_WSF:
8059 rc = sprintf(buf, "%u\n", fnode_conn->tcp_xmit_wsf);
8060 break;
8061 case ISCSI_FLASHNODE_TCP_RECV_WSF:
8062 rc = sprintf(buf, "%u\n", fnode_conn->tcp_recv_wsf);
8063 break;
8064 case ISCSI_FLASHNODE_CHAP_OUT_IDX:
8065 rc = sprintf(buf, "%u\n", fnode_sess->chap_out_idx);
8066 break;
8067 case ISCSI_FLASHNODE_USERNAME:
8068 if (fnode_sess->chap_auth_en) {
8069 qla4xxx_get_uni_chap_at_index(ha,
8070 chap_tbl.name,
8071 chap_tbl.secret,
8072 fnode_sess->chap_out_idx);
8073 rc = sprintf(buf, "%s\n", chap_tbl.name);
8074 } else {
8075 rc = sprintf(buf, "\n");
8076 }
8077 break;
8078 case ISCSI_FLASHNODE_PASSWORD:
8079 if (fnode_sess->chap_auth_en) {
8080 qla4xxx_get_uni_chap_at_index(ha,
8081 chap_tbl.name,
8082 chap_tbl.secret,
8083 fnode_sess->chap_out_idx);
8084 rc = sprintf(buf, "%s\n", chap_tbl.secret);
8085 } else {
8086 rc = sprintf(buf, "\n");
8087 }
8088 break;
8089 case ISCSI_FLASHNODE_STATSN:
8090 rc = sprintf(buf, "%u\n", fnode_conn->statsn);
8091 break;
8092 case ISCSI_FLASHNODE_EXP_STATSN:
8093 rc = sprintf(buf, "%u\n", fnode_conn->exp_statsn);
8094 break;
8095 case ISCSI_FLASHNODE_IS_BOOT_TGT:
8096 rc = sprintf(buf, "%u\n", fnode_sess->is_boot_target);
8097 break;
8098 default:
8099 rc = -ENOSYS;
8100 break;
8101 }
8102
8103 put_device(dev);
8104 return rc;
8105 }
8106
8107 /**
8108 * qla4xxx_sysfs_ddb_set_param - Set parameter for firmware DDB entry
8109 * @fnode_sess: pointer to session attrs of flash ddb entry
8110 * @fnode_conn: pointer to connection attrs of flash ddb entry
8111 * @data: Parameters and their values to update
8112 * @len: len of data
8113 *
8114 * This sets the parameter of flash ddb entry and writes them to flash
8115 **/
8116 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)8117 qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess,
8118 struct iscsi_bus_flash_conn *fnode_conn,
8119 void *data, int len)
8120 {
8121 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
8122 struct scsi_qla_host *ha = to_qla_host(shost);
8123 struct iscsi_flashnode_param_info *fnode_param;
8124 struct ql4_chap_table chap_tbl;
8125 struct nlattr *attr;
8126 uint16_t chap_out_idx = INVALID_ENTRY;
8127 int rc = QLA_ERROR;
8128 uint32_t rem = len;
8129
8130 memset((void *)&chap_tbl, 0, sizeof(chap_tbl));
8131 nla_for_each_attr(attr, data, len, rem) {
8132 if (nla_len(attr) < sizeof(*fnode_param)) {
8133 rc = -EINVAL;
8134 goto exit_set_param;
8135 }
8136
8137 fnode_param = nla_data(attr);
8138
8139 switch (fnode_param->param) {
8140 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6:
8141 fnode_conn->is_fw_assigned_ipv6 = fnode_param->value[0];
8142 break;
8143 case ISCSI_FLASHNODE_PORTAL_TYPE:
8144 memcpy(fnode_sess->portal_type, fnode_param->value,
8145 strlen(fnode_sess->portal_type));
8146 break;
8147 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE:
8148 fnode_sess->auto_snd_tgt_disable =
8149 fnode_param->value[0];
8150 break;
8151 case ISCSI_FLASHNODE_DISCOVERY_SESS:
8152 fnode_sess->discovery_sess = fnode_param->value[0];
8153 break;
8154 case ISCSI_FLASHNODE_ENTRY_EN:
8155 fnode_sess->entry_state = fnode_param->value[0];
8156 break;
8157 case ISCSI_FLASHNODE_HDR_DGST_EN:
8158 fnode_conn->hdrdgst_en = fnode_param->value[0];
8159 break;
8160 case ISCSI_FLASHNODE_DATA_DGST_EN:
8161 fnode_conn->datadgst_en = fnode_param->value[0];
8162 break;
8163 case ISCSI_FLASHNODE_IMM_DATA_EN:
8164 fnode_sess->imm_data_en = fnode_param->value[0];
8165 break;
8166 case ISCSI_FLASHNODE_INITIAL_R2T_EN:
8167 fnode_sess->initial_r2t_en = fnode_param->value[0];
8168 break;
8169 case ISCSI_FLASHNODE_DATASEQ_INORDER:
8170 fnode_sess->dataseq_inorder_en = fnode_param->value[0];
8171 break;
8172 case ISCSI_FLASHNODE_PDU_INORDER:
8173 fnode_sess->pdu_inorder_en = fnode_param->value[0];
8174 break;
8175 case ISCSI_FLASHNODE_CHAP_AUTH_EN:
8176 fnode_sess->chap_auth_en = fnode_param->value[0];
8177 /* Invalidate chap index if chap auth is disabled */
8178 if (!fnode_sess->chap_auth_en)
8179 fnode_sess->chap_out_idx = INVALID_ENTRY;
8180
8181 break;
8182 case ISCSI_FLASHNODE_SNACK_REQ_EN:
8183 fnode_conn->snack_req_en = fnode_param->value[0];
8184 break;
8185 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN:
8186 fnode_sess->discovery_logout_en = fnode_param->value[0];
8187 break;
8188 case ISCSI_FLASHNODE_BIDI_CHAP_EN:
8189 fnode_sess->bidi_chap_en = fnode_param->value[0];
8190 break;
8191 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL:
8192 fnode_sess->discovery_auth_optional =
8193 fnode_param->value[0];
8194 break;
8195 case ISCSI_FLASHNODE_ERL:
8196 fnode_sess->erl = fnode_param->value[0];
8197 break;
8198 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT:
8199 fnode_conn->tcp_timestamp_stat = fnode_param->value[0];
8200 break;
8201 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE:
8202 fnode_conn->tcp_nagle_disable = fnode_param->value[0];
8203 break;
8204 case ISCSI_FLASHNODE_TCP_WSF_DISABLE:
8205 fnode_conn->tcp_wsf_disable = fnode_param->value[0];
8206 break;
8207 case ISCSI_FLASHNODE_TCP_TIMER_SCALE:
8208 fnode_conn->tcp_timer_scale = fnode_param->value[0];
8209 break;
8210 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN:
8211 fnode_conn->tcp_timestamp_en = fnode_param->value[0];
8212 break;
8213 case ISCSI_FLASHNODE_IP_FRAG_DISABLE:
8214 fnode_conn->fragment_disable = fnode_param->value[0];
8215 break;
8216 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH:
8217 fnode_conn->max_recv_dlength =
8218 *(unsigned *)fnode_param->value;
8219 break;
8220 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH:
8221 fnode_conn->max_xmit_dlength =
8222 *(unsigned *)fnode_param->value;
8223 break;
8224 case ISCSI_FLASHNODE_FIRST_BURST:
8225 fnode_sess->first_burst =
8226 *(unsigned *)fnode_param->value;
8227 break;
8228 case ISCSI_FLASHNODE_DEF_TIME2WAIT:
8229 fnode_sess->time2wait = *(uint16_t *)fnode_param->value;
8230 break;
8231 case ISCSI_FLASHNODE_DEF_TIME2RETAIN:
8232 fnode_sess->time2retain =
8233 *(uint16_t *)fnode_param->value;
8234 break;
8235 case ISCSI_FLASHNODE_MAX_R2T:
8236 fnode_sess->max_r2t =
8237 *(uint16_t *)fnode_param->value;
8238 break;
8239 case ISCSI_FLASHNODE_KEEPALIVE_TMO:
8240 fnode_conn->keepalive_timeout =
8241 *(uint16_t *)fnode_param->value;
8242 break;
8243 case ISCSI_FLASHNODE_ISID:
8244 memcpy(fnode_sess->isid, fnode_param->value,
8245 sizeof(fnode_sess->isid));
8246 break;
8247 case ISCSI_FLASHNODE_TSID:
8248 fnode_sess->tsid = *(uint16_t *)fnode_param->value;
8249 break;
8250 case ISCSI_FLASHNODE_PORT:
8251 fnode_conn->port = *(uint16_t *)fnode_param->value;
8252 break;
8253 case ISCSI_FLASHNODE_MAX_BURST:
8254 fnode_sess->max_burst = *(unsigned *)fnode_param->value;
8255 break;
8256 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO:
8257 fnode_sess->default_taskmgmt_timeout =
8258 *(uint16_t *)fnode_param->value;
8259 break;
8260 case ISCSI_FLASHNODE_IPADDR:
8261 memcpy(fnode_conn->ipaddress, fnode_param->value,
8262 IPv6_ADDR_LEN);
8263 break;
8264 case ISCSI_FLASHNODE_ALIAS:
8265 rc = iscsi_switch_str_param(&fnode_sess->targetalias,
8266 (char *)fnode_param->value);
8267 break;
8268 case ISCSI_FLASHNODE_REDIRECT_IPADDR:
8269 memcpy(fnode_conn->redirect_ipaddr, fnode_param->value,
8270 IPv6_ADDR_LEN);
8271 break;
8272 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE:
8273 fnode_conn->max_segment_size =
8274 *(unsigned *)fnode_param->value;
8275 break;
8276 case ISCSI_FLASHNODE_LOCAL_PORT:
8277 fnode_conn->local_port =
8278 *(uint16_t *)fnode_param->value;
8279 break;
8280 case ISCSI_FLASHNODE_IPV4_TOS:
8281 fnode_conn->ipv4_tos = fnode_param->value[0];
8282 break;
8283 case ISCSI_FLASHNODE_IPV6_TC:
8284 fnode_conn->ipv6_traffic_class = fnode_param->value[0];
8285 break;
8286 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL:
8287 fnode_conn->ipv6_flow_label = fnode_param->value[0];
8288 break;
8289 case ISCSI_FLASHNODE_NAME:
8290 rc = iscsi_switch_str_param(&fnode_sess->targetname,
8291 (char *)fnode_param->value);
8292 break;
8293 case ISCSI_FLASHNODE_TPGT:
8294 fnode_sess->tpgt = *(uint16_t *)fnode_param->value;
8295 break;
8296 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6:
8297 memcpy(fnode_conn->link_local_ipv6_addr,
8298 fnode_param->value, IPv6_ADDR_LEN);
8299 break;
8300 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX:
8301 fnode_sess->discovery_parent_idx =
8302 *(uint16_t *)fnode_param->value;
8303 break;
8304 case ISCSI_FLASHNODE_TCP_XMIT_WSF:
8305 fnode_conn->tcp_xmit_wsf =
8306 *(uint8_t *)fnode_param->value;
8307 break;
8308 case ISCSI_FLASHNODE_TCP_RECV_WSF:
8309 fnode_conn->tcp_recv_wsf =
8310 *(uint8_t *)fnode_param->value;
8311 break;
8312 case ISCSI_FLASHNODE_STATSN:
8313 fnode_conn->statsn = *(uint32_t *)fnode_param->value;
8314 break;
8315 case ISCSI_FLASHNODE_EXP_STATSN:
8316 fnode_conn->exp_statsn =
8317 *(uint32_t *)fnode_param->value;
8318 break;
8319 case ISCSI_FLASHNODE_CHAP_OUT_IDX:
8320 chap_out_idx = *(uint16_t *)fnode_param->value;
8321 if (!qla4xxx_get_uni_chap_at_index(ha,
8322 chap_tbl.name,
8323 chap_tbl.secret,
8324 chap_out_idx)) {
8325 fnode_sess->chap_out_idx = chap_out_idx;
8326 /* Enable chap auth if chap index is valid */
8327 fnode_sess->chap_auth_en = QL4_PARAM_ENABLE;
8328 }
8329 break;
8330 default:
8331 ql4_printk(KERN_ERR, ha,
8332 "%s: No such sysfs attribute\n", __func__);
8333 rc = -ENOSYS;
8334 goto exit_set_param;
8335 }
8336 }
8337
8338 rc = qla4xxx_sysfs_ddb_apply(fnode_sess, fnode_conn);
8339
8340 exit_set_param:
8341 return rc;
8342 }
8343
8344 /**
8345 * qla4xxx_sysfs_ddb_delete - Delete firmware DDB entry
8346 * @fnode_sess: pointer to session attrs of flash ddb entry
8347 *
8348 * This invalidates the flash ddb entry at the given index
8349 **/
qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess)8350 static int qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess)
8351 {
8352 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
8353 struct scsi_qla_host *ha = to_qla_host(shost);
8354 uint32_t dev_db_start_offset;
8355 uint32_t dev_db_end_offset;
8356 struct dev_db_entry *fw_ddb_entry = NULL;
8357 dma_addr_t fw_ddb_entry_dma;
8358 uint16_t *ddb_cookie = NULL;
8359 size_t ddb_size = 0;
8360 void *pddb = NULL;
8361 int target_id;
8362 int rc = 0;
8363
8364 if (fnode_sess->is_boot_target) {
8365 rc = -EPERM;
8366 DEBUG2(ql4_printk(KERN_ERR, ha,
8367 "%s: Deletion of boot target entry is not permitted.\n",
8368 __func__));
8369 goto exit_ddb_del;
8370 }
8371
8372 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT)
8373 goto sysfs_ddb_del;
8374
8375 if (is_qla40XX(ha)) {
8376 dev_db_start_offset = FLASH_OFFSET_DB_INFO;
8377 dev_db_end_offset = FLASH_OFFSET_DB_END;
8378 dev_db_start_offset += (fnode_sess->target_id *
8379 sizeof(*fw_ddb_entry));
8380 ddb_size = sizeof(*fw_ddb_entry);
8381 } else {
8382 dev_db_start_offset = FLASH_RAW_ACCESS_ADDR +
8383 (ha->hw.flt_region_ddb << 2);
8384 /* flt_ddb_size is DDB table size for both ports
8385 * so divide it by 2 to calculate the offset for second port
8386 */
8387 if (ha->port_num == 1)
8388 dev_db_start_offset += (ha->hw.flt_ddb_size / 2);
8389
8390 dev_db_end_offset = dev_db_start_offset +
8391 (ha->hw.flt_ddb_size / 2);
8392
8393 dev_db_start_offset += (fnode_sess->target_id *
8394 sizeof(*fw_ddb_entry));
8395 dev_db_start_offset += offsetof(struct dev_db_entry, cookie);
8396
8397 ddb_size = sizeof(*ddb_cookie);
8398 }
8399
8400 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: start offset=%u, end offset=%u\n",
8401 __func__, dev_db_start_offset, dev_db_end_offset));
8402
8403 if (dev_db_start_offset > dev_db_end_offset) {
8404 rc = -EIO;
8405 DEBUG2(ql4_printk(KERN_ERR, ha, "%s:Invalid DDB index %u\n",
8406 __func__, fnode_sess->target_id));
8407 goto exit_ddb_del;
8408 }
8409
8410 pddb = dma_alloc_coherent(&ha->pdev->dev, ddb_size,
8411 &fw_ddb_entry_dma, GFP_KERNEL);
8412 if (!pddb) {
8413 rc = -ENOMEM;
8414 DEBUG2(ql4_printk(KERN_ERR, ha,
8415 "%s: Unable to allocate dma buffer\n",
8416 __func__));
8417 goto exit_ddb_del;
8418 }
8419
8420 if (is_qla40XX(ha)) {
8421 fw_ddb_entry = pddb;
8422 memset(fw_ddb_entry, 0, ddb_size);
8423 ddb_cookie = &fw_ddb_entry->cookie;
8424 } else {
8425 ddb_cookie = pddb;
8426 }
8427
8428 /* invalidate the cookie */
8429 *ddb_cookie = 0xFFEE;
8430 qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset,
8431 ddb_size, FLASH_OPT_RMW_COMMIT);
8432
8433 sysfs_ddb_del:
8434 target_id = fnode_sess->target_id;
8435 iscsi_destroy_flashnode_sess(fnode_sess);
8436 ql4_printk(KERN_INFO, ha,
8437 "%s: session and conn entries for flashnode %u of host %lu deleted\n",
8438 __func__, target_id, ha->host_no);
8439 exit_ddb_del:
8440 if (pddb)
8441 dma_free_coherent(&ha->pdev->dev, ddb_size, pddb,
8442 fw_ddb_entry_dma);
8443 return rc;
8444 }
8445
8446 /**
8447 * qla4xxx_sysfs_ddb_export - Create sysfs entries for firmware DDBs
8448 * @ha: pointer to adapter structure
8449 *
8450 * Export the firmware DDB for all send targets and normal targets to sysfs.
8451 **/
qla4xxx_sysfs_ddb_export(struct scsi_qla_host *ha)8452 int qla4xxx_sysfs_ddb_export(struct scsi_qla_host *ha)
8453 {
8454 struct dev_db_entry *fw_ddb_entry = NULL;
8455 dma_addr_t fw_ddb_entry_dma;
8456 uint16_t max_ddbs;
8457 uint16_t idx = 0;
8458 int ret = QLA_SUCCESS;
8459
8460 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev,
8461 sizeof(*fw_ddb_entry),
8462 &fw_ddb_entry_dma, GFP_KERNEL);
8463 if (!fw_ddb_entry) {
8464 DEBUG2(ql4_printk(KERN_ERR, ha,
8465 "%s: Unable to allocate dma buffer\n",
8466 __func__));
8467 return -ENOMEM;
8468 }
8469
8470 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES :
8471 MAX_DEV_DB_ENTRIES;
8472
8473 for (idx = 0; idx < max_ddbs; idx++) {
8474 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry, fw_ddb_entry_dma,
8475 idx))
8476 continue;
8477
8478 ret = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 0);
8479 if (ret) {
8480 ret = -EIO;
8481 break;
8482 }
8483 }
8484
8485 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry,
8486 fw_ddb_entry_dma);
8487
8488 return ret;
8489 }
8490
qla4xxx_sysfs_ddb_remove(struct scsi_qla_host *ha)8491 static void qla4xxx_sysfs_ddb_remove(struct scsi_qla_host *ha)
8492 {
8493 iscsi_destroy_all_flashnode(ha->host);
8494 }
8495
8496 /**
8497 * qla4xxx_build_ddb_list - Build ddb list and setup sessions
8498 * @ha: pointer to adapter structure
8499 * @is_reset: Is this init path or reset path
8500 *
8501 * Create a list of sendtargets (st) from firmware DDBs, issue send targets
8502 * using connection open, then create the list of normal targets (nt)
8503 * from firmware DDBs. Based on the list of nt setup session and connection
8504 * objects.
8505 **/
qla4xxx_build_ddb_list(struct scsi_qla_host *ha, int is_reset)8506 void qla4xxx_build_ddb_list(struct scsi_qla_host *ha, int is_reset)
8507 {
8508 uint16_t tmo = 0;
8509 struct list_head list_st, list_nt;
8510 struct qla_ddb_index *st_ddb_idx, *st_ddb_idx_tmp;
8511 unsigned long wtime;
8512
8513 if (!test_bit(AF_LINK_UP, &ha->flags)) {
8514 set_bit(AF_BUILD_DDB_LIST, &ha->flags);
8515 ha->is_reset = is_reset;
8516 return;
8517 }
8518
8519 INIT_LIST_HEAD(&list_st);
8520 INIT_LIST_HEAD(&list_nt);
8521
8522 qla4xxx_build_st_list(ha, &list_st);
8523
8524 /* Before issuing conn open mbox, ensure all IPs states are configured
8525 * Note, conn open fails if IPs are not configured
8526 */
8527 qla4xxx_wait_for_ip_configuration(ha);
8528
8529 /* Go thru the STs and fire the sendtargets by issuing conn open mbx */
8530 list_for_each_entry_safe(st_ddb_idx, st_ddb_idx_tmp, &list_st, list) {
8531 qla4xxx_conn_open(ha, st_ddb_idx->fw_ddb_idx);
8532 }
8533
8534 /* Wait to ensure all sendtargets are done for min 12 sec wait */
8535 tmo = ((ha->def_timeout > LOGIN_TOV) &&
8536 (ha->def_timeout < LOGIN_TOV * 10) ?
8537 ha->def_timeout : LOGIN_TOV);
8538
8539 DEBUG2(ql4_printk(KERN_INFO, ha,
8540 "Default time to wait for build ddb %d\n", tmo));
8541
8542 wtime = jiffies + (HZ * tmo);
8543 do {
8544 if (list_empty(&list_st))
8545 break;
8546
8547 qla4xxx_remove_failed_ddb(ha, &list_st);
8548 schedule_timeout_uninterruptible(HZ / 10);
8549 } while (time_after(wtime, jiffies));
8550
8551
8552 qla4xxx_build_nt_list(ha, &list_nt, &list_st, is_reset);
8553
8554 qla4xxx_free_ddb_list(&list_st);
8555 qla4xxx_free_ddb_list(&list_nt);
8556
8557 qla4xxx_free_ddb_index(ha);
8558 }
8559
8560 /**
8561 * qla4xxx_wait_login_resp_boot_tgt - Wait for iSCSI boot target login
8562 * response.
8563 * @ha: pointer to adapter structure
8564 *
8565 * When the boot entry is normal iSCSI target then DF_BOOT_TGT flag will be
8566 * set in DDB and we will wait for login response of boot targets during
8567 * probe.
8568 **/
qla4xxx_wait_login_resp_boot_tgt(struct scsi_qla_host *ha)8569 static void qla4xxx_wait_login_resp_boot_tgt(struct scsi_qla_host *ha)
8570 {
8571 struct ddb_entry *ddb_entry;
8572 struct dev_db_entry *fw_ddb_entry = NULL;
8573 dma_addr_t fw_ddb_entry_dma;
8574 unsigned long wtime;
8575 uint32_t ddb_state;
8576 int max_ddbs, idx, ret;
8577
8578 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
8579 MAX_DEV_DB_ENTRIES;
8580
8581 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8582 &fw_ddb_entry_dma, GFP_KERNEL);
8583 if (!fw_ddb_entry) {
8584 ql4_printk(KERN_ERR, ha,
8585 "%s: Unable to allocate dma buffer\n", __func__);
8586 goto exit_login_resp;
8587 }
8588
8589 wtime = jiffies + (HZ * BOOT_LOGIN_RESP_TOV);
8590
8591 for (idx = 0; idx < max_ddbs; idx++) {
8592 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
8593 if (ddb_entry == NULL)
8594 continue;
8595
8596 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) {
8597 DEBUG2(ql4_printk(KERN_INFO, ha,
8598 "%s: DDB index [%d]\n", __func__,
8599 ddb_entry->fw_ddb_index));
8600 do {
8601 ret = qla4xxx_get_fwddb_entry(ha,
8602 ddb_entry->fw_ddb_index,
8603 fw_ddb_entry, fw_ddb_entry_dma,
8604 NULL, NULL, &ddb_state, NULL,
8605 NULL, NULL);
8606 if (ret == QLA_ERROR)
8607 goto exit_login_resp;
8608
8609 if ((ddb_state == DDB_DS_SESSION_ACTIVE) ||
8610 (ddb_state == DDB_DS_SESSION_FAILED))
8611 break;
8612
8613 schedule_timeout_uninterruptible(HZ);
8614
8615 } while ((time_after(wtime, jiffies)));
8616
8617 if (!time_after(wtime, jiffies)) {
8618 DEBUG2(ql4_printk(KERN_INFO, ha,
8619 "%s: Login response wait timer expired\n",
8620 __func__));
8621 goto exit_login_resp;
8622 }
8623 }
8624 }
8625
8626 exit_login_resp:
8627 if (fw_ddb_entry)
8628 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8629 fw_ddb_entry, fw_ddb_entry_dma);
8630 }
8631
8632 /**
8633 * qla4xxx_probe_adapter - callback function to probe HBA
8634 * @pdev: pointer to pci_dev structure
8635 * @ent: pointer to pci_device entry
8636 *
8637 * This routine will probe for Qlogic 4xxx iSCSI host adapters.
8638 * It returns zero if successful. It also initializes all data necessary for
8639 * the driver.
8640 **/
qla4xxx_probe_adapter(struct pci_dev *pdev, const struct pci_device_id *ent)8641 static int qla4xxx_probe_adapter(struct pci_dev *pdev,
8642 const struct pci_device_id *ent)
8643 {
8644 int ret = -ENODEV, status;
8645 struct Scsi_Host *host;
8646 struct scsi_qla_host *ha;
8647 uint8_t init_retry_count = 0;
8648 char buf[34];
8649 struct qla4_8xxx_legacy_intr_set *nx_legacy_intr;
8650 uint32_t dev_state;
8651
8652 if (pci_enable_device(pdev))
8653 return -1;
8654
8655 host = iscsi_host_alloc(&qla4xxx_driver_template, sizeof(*ha), 0);
8656 if (host == NULL) {
8657 printk(KERN_WARNING
8658 "qla4xxx: Couldn't allocate host from scsi layer!\n");
8659 goto probe_disable_device;
8660 }
8661
8662 /* Clear our data area */
8663 ha = to_qla_host(host);
8664 memset(ha, 0, sizeof(*ha));
8665
8666 /* Save the information from PCI BIOS. */
8667 ha->pdev = pdev;
8668 ha->host = host;
8669 ha->host_no = host->host_no;
8670 ha->func_num = PCI_FUNC(ha->pdev->devfn);
8671
8672 pci_enable_pcie_error_reporting(pdev);
8673
8674 /* Setup Runtime configurable options */
8675 if (is_qla8022(ha)) {
8676 ha->isp_ops = &qla4_82xx_isp_ops;
8677 ha->reg_tbl = (uint32_t *) qla4_82xx_reg_tbl;
8678 ha->qdr_sn_window = -1;
8679 ha->ddr_mn_window = -1;
8680 ha->curr_window = 255;
8681 nx_legacy_intr = &legacy_intr[ha->func_num];
8682 ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit;
8683 ha->nx_legacy_intr.tgt_status_reg =
8684 nx_legacy_intr->tgt_status_reg;
8685 ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg;
8686 ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg;
8687 } else if (is_qla8032(ha) || is_qla8042(ha)) {
8688 ha->isp_ops = &qla4_83xx_isp_ops;
8689 ha->reg_tbl = (uint32_t *)qla4_83xx_reg_tbl;
8690 } else {
8691 ha->isp_ops = &qla4xxx_isp_ops;
8692 }
8693
8694 if (is_qla80XX(ha)) {
8695 rwlock_init(&ha->hw_lock);
8696 ha->pf_bit = ha->func_num << 16;
8697 /* Set EEH reset type to fundamental if required by hba */
8698 pdev->needs_freset = 1;
8699 }
8700
8701 /* Configure PCI I/O space. */
8702 ret = ha->isp_ops->iospace_config(ha);
8703 if (ret)
8704 goto probe_failed_ioconfig;
8705
8706 ql4_printk(KERN_INFO, ha, "Found an ISP%04x, irq %d, iobase 0x%p\n",
8707 pdev->device, pdev->irq, ha->reg);
8708
8709 qla4xxx_config_dma_addressing(ha);
8710
8711 /* Initialize lists and spinlocks. */
8712 INIT_LIST_HEAD(&ha->free_srb_q);
8713
8714 mutex_init(&ha->mbox_sem);
8715 mutex_init(&ha->chap_sem);
8716 init_completion(&ha->mbx_intr_comp);
8717 init_completion(&ha->disable_acb_comp);
8718 init_completion(&ha->idc_comp);
8719 init_completion(&ha->link_up_comp);
8720
8721 spin_lock_init(&ha->hardware_lock);
8722 spin_lock_init(&ha->work_lock);
8723
8724 /* Initialize work list */
8725 INIT_LIST_HEAD(&ha->work_list);
8726
8727 /* Allocate dma buffers */
8728 if (qla4xxx_mem_alloc(ha)) {
8729 ql4_printk(KERN_WARNING, ha,
8730 "[ERROR] Failed to allocate memory for adapter\n");
8731
8732 ret = -ENOMEM;
8733 goto probe_failed;
8734 }
8735
8736 host->cmd_per_lun = 3;
8737 host->max_channel = 0;
8738 host->max_lun = MAX_LUNS - 1;
8739 host->max_id = MAX_TARGETS;
8740 host->max_cmd_len = IOCB_MAX_CDB_LEN;
8741 host->can_queue = MAX_SRBS ;
8742 host->transportt = qla4xxx_scsi_transport;
8743
8744 pci_set_drvdata(pdev, ha);
8745
8746 ret = scsi_add_host(host, &pdev->dev);
8747 if (ret)
8748 goto probe_failed;
8749
8750 if (is_qla80XX(ha))
8751 qla4_8xxx_get_flash_info(ha);
8752
8753 if (is_qla8032(ha) || is_qla8042(ha)) {
8754 qla4_83xx_read_reset_template(ha);
8755 /*
8756 * NOTE: If ql4dontresethba==1, set IDC_CTRL DONTRESET_BIT0.
8757 * If DONRESET_BIT0 is set, drivers should not set dev_state
8758 * to NEED_RESET. But if NEED_RESET is set, drivers should
8759 * should honor the reset.
8760 */
8761 if (ql4xdontresethba == 1)
8762 qla4_83xx_set_idc_dontreset(ha);
8763 }
8764
8765 /*
8766 * Initialize the Host adapter request/response queues and
8767 * firmware
8768 * NOTE: interrupts enabled upon successful completion
8769 */
8770 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER);
8771
8772 /* Dont retry adapter initialization if IRQ allocation failed */
8773 if (is_qla80XX(ha) && (status == QLA_ERROR))
8774 goto skip_retry_init;
8775
8776 while ((!test_bit(AF_ONLINE, &ha->flags)) &&
8777 init_retry_count++ < MAX_INIT_RETRIES) {
8778
8779 if (is_qla80XX(ha)) {
8780 ha->isp_ops->idc_lock(ha);
8781 dev_state = qla4_8xxx_rd_direct(ha,
8782 QLA8XXX_CRB_DEV_STATE);
8783 ha->isp_ops->idc_unlock(ha);
8784 if (dev_state == QLA8XXX_DEV_FAILED) {
8785 ql4_printk(KERN_WARNING, ha, "%s: don't retry "
8786 "initialize adapter. H/W is in failed state\n",
8787 __func__);
8788 break;
8789 }
8790 }
8791 DEBUG2(printk("scsi: %s: retrying adapter initialization "
8792 "(%d)\n", __func__, init_retry_count));
8793
8794 if (ha->isp_ops->reset_chip(ha) == QLA_ERROR)
8795 continue;
8796
8797 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER);
8798 if (is_qla80XX(ha) && (status == QLA_ERROR)) {
8799 if (qla4_8xxx_check_init_adapter_retry(ha) == QLA_ERROR)
8800 goto skip_retry_init;
8801 }
8802 }
8803
8804 skip_retry_init:
8805 if (!test_bit(AF_ONLINE, &ha->flags)) {
8806 ql4_printk(KERN_WARNING, ha, "Failed to initialize adapter\n");
8807
8808 if ((is_qla8022(ha) && ql4xdontresethba) ||
8809 ((is_qla8032(ha) || is_qla8042(ha)) &&
8810 qla4_83xx_idc_dontreset(ha))) {
8811 /* Put the device in failed state. */
8812 DEBUG2(printk(KERN_ERR "HW STATE: FAILED\n"));
8813 ha->isp_ops->idc_lock(ha);
8814 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
8815 QLA8XXX_DEV_FAILED);
8816 ha->isp_ops->idc_unlock(ha);
8817 }
8818 ret = -ENODEV;
8819 goto remove_host;
8820 }
8821
8822 /* Startup the kernel thread for this host adapter. */
8823 DEBUG2(printk("scsi: %s: Starting kernel thread for "
8824 "qla4xxx_dpc\n", __func__));
8825 sprintf(buf, "qla4xxx_%lu_dpc", ha->host_no);
8826 ha->dpc_thread = create_singlethread_workqueue(buf);
8827 if (!ha->dpc_thread) {
8828 ql4_printk(KERN_WARNING, ha, "Unable to start DPC thread!\n");
8829 ret = -ENODEV;
8830 goto remove_host;
8831 }
8832 INIT_WORK(&ha->dpc_work, qla4xxx_do_dpc);
8833
8834 ha->task_wq = alloc_workqueue("qla4xxx_%lu_task", WQ_MEM_RECLAIM, 1,
8835 ha->host_no);
8836 if (!ha->task_wq) {
8837 ql4_printk(KERN_WARNING, ha, "Unable to start task thread!\n");
8838 ret = -ENODEV;
8839 goto remove_host;
8840 }
8841
8842 /*
8843 * For ISP-8XXX, request_irqs is called in qla4_8xxx_load_risc
8844 * (which is called indirectly by qla4xxx_initialize_adapter),
8845 * so that irqs will be registered after crbinit but before
8846 * mbx_intr_enable.
8847 */
8848 if (is_qla40XX(ha)) {
8849 ret = qla4xxx_request_irqs(ha);
8850 if (ret) {
8851 ql4_printk(KERN_WARNING, ha, "Failed to reserve "
8852 "interrupt %d already in use.\n", pdev->irq);
8853 goto remove_host;
8854 }
8855 }
8856
8857 pci_save_state(ha->pdev);
8858 ha->isp_ops->enable_intrs(ha);
8859
8860 /* Start timer thread. */
8861 qla4xxx_start_timer(ha, 1);
8862
8863 set_bit(AF_INIT_DONE, &ha->flags);
8864
8865 qla4_8xxx_alloc_sysfs_attr(ha);
8866
8867 printk(KERN_INFO
8868 " QLogic iSCSI HBA Driver version: %s\n"
8869 " QLogic ISP%04x @ %s, host#=%ld, fw=%02d.%02d.%02d.%02d\n",
8870 qla4xxx_version_str, ha->pdev->device, pci_name(ha->pdev),
8871 ha->host_no, ha->fw_info.fw_major, ha->fw_info.fw_minor,
8872 ha->fw_info.fw_patch, ha->fw_info.fw_build);
8873
8874 /* Set the driver version */
8875 if (is_qla80XX(ha))
8876 qla4_8xxx_set_param(ha, SET_DRVR_VERSION);
8877
8878 if (qla4xxx_setup_boot_info(ha))
8879 ql4_printk(KERN_ERR, ha,
8880 "%s: No iSCSI boot target configured\n", __func__);
8881
8882 set_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags);
8883 /* Perform the build ddb list and login to each */
8884 qla4xxx_build_ddb_list(ha, INIT_ADAPTER);
8885 iscsi_host_for_each_session(ha->host, qla4xxx_login_flash_ddb);
8886 qla4xxx_wait_login_resp_boot_tgt(ha);
8887
8888 qla4xxx_create_chap_list(ha);
8889
8890 qla4xxx_create_ifaces(ha);
8891 return 0;
8892
8893 remove_host:
8894 scsi_remove_host(ha->host);
8895
8896 probe_failed:
8897 qla4xxx_free_adapter(ha);
8898
8899 probe_failed_ioconfig:
8900 pci_disable_pcie_error_reporting(pdev);
8901 scsi_host_put(ha->host);
8902
8903 probe_disable_device:
8904 pci_disable_device(pdev);
8905
8906 return ret;
8907 }
8908
8909 /**
8910 * qla4xxx_prevent_other_port_reinit - prevent other port from re-initialize
8911 * @ha: pointer to adapter structure
8912 *
8913 * Mark the other ISP-4xxx port to indicate that the driver is being removed,
8914 * so that the other port will not re-initialize while in the process of
8915 * removing the ha due to driver unload or hba hotplug.
8916 **/
qla4xxx_prevent_other_port_reinit(struct scsi_qla_host *ha)8917 static void qla4xxx_prevent_other_port_reinit(struct scsi_qla_host *ha)
8918 {
8919 struct scsi_qla_host *other_ha = NULL;
8920 struct pci_dev *other_pdev = NULL;
8921 int fn = ISP4XXX_PCI_FN_2;
8922
8923 /*iscsi function numbers for ISP4xxx is 1 and 3*/
8924 if (PCI_FUNC(ha->pdev->devfn) & BIT_1)
8925 fn = ISP4XXX_PCI_FN_1;
8926
8927 other_pdev =
8928 pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus),
8929 ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
8930 fn));
8931
8932 /* Get other_ha if other_pdev is valid and state is enable*/
8933 if (other_pdev) {
8934 if (atomic_read(&other_pdev->enable_cnt)) {
8935 other_ha = pci_get_drvdata(other_pdev);
8936 if (other_ha) {
8937 set_bit(AF_HA_REMOVAL, &other_ha->flags);
8938 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: "
8939 "Prevent %s reinit\n", __func__,
8940 dev_name(&other_ha->pdev->dev)));
8941 }
8942 }
8943 pci_dev_put(other_pdev);
8944 }
8945 }
8946
qla4xxx_destroy_ddb(struct scsi_qla_host *ha, struct ddb_entry *ddb_entry)8947 static void qla4xxx_destroy_ddb(struct scsi_qla_host *ha,
8948 struct ddb_entry *ddb_entry)
8949 {
8950 struct dev_db_entry *fw_ddb_entry = NULL;
8951 dma_addr_t fw_ddb_entry_dma;
8952 unsigned long wtime;
8953 uint32_t ddb_state;
8954 int options;
8955 int status;
8956
8957 options = LOGOUT_OPTION_CLOSE_SESSION;
8958 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR) {
8959 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__);
8960 goto clear_ddb;
8961 }
8962
8963 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8964 &fw_ddb_entry_dma, GFP_KERNEL);
8965 if (!fw_ddb_entry) {
8966 ql4_printk(KERN_ERR, ha,
8967 "%s: Unable to allocate dma buffer\n", __func__);
8968 goto clear_ddb;
8969 }
8970
8971 wtime = jiffies + (HZ * LOGOUT_TOV);
8972 do {
8973 status = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
8974 fw_ddb_entry, fw_ddb_entry_dma,
8975 NULL, NULL, &ddb_state, NULL,
8976 NULL, NULL);
8977 if (status == QLA_ERROR)
8978 goto free_ddb;
8979
8980 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) ||
8981 (ddb_state == DDB_DS_SESSION_FAILED))
8982 goto free_ddb;
8983
8984 schedule_timeout_uninterruptible(HZ);
8985 } while ((time_after(wtime, jiffies)));
8986
8987 free_ddb:
8988 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8989 fw_ddb_entry, fw_ddb_entry_dma);
8990 clear_ddb:
8991 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
8992 }
8993
qla4xxx_destroy_fw_ddb_session(struct scsi_qla_host *ha)8994 static void qla4xxx_destroy_fw_ddb_session(struct scsi_qla_host *ha)
8995 {
8996 struct ddb_entry *ddb_entry;
8997 int idx;
8998
8999 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
9000
9001 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
9002 if ((ddb_entry != NULL) &&
9003 (ddb_entry->ddb_type == FLASH_DDB)) {
9004
9005 qla4xxx_destroy_ddb(ha, ddb_entry);
9006 /*
9007 * we have decremented the reference count of the driver
9008 * when we setup the session to have the driver unload
9009 * to be seamless without actually destroying the
9010 * session
9011 **/
9012 try_module_get(qla4xxx_iscsi_transport.owner);
9013 iscsi_destroy_endpoint(ddb_entry->conn->ep);
9014 qla4xxx_free_ddb(ha, ddb_entry);
9015 iscsi_session_teardown(ddb_entry->sess);
9016 }
9017 }
9018 }
9019 /**
9020 * qla4xxx_remove_adapter - callback function to remove adapter.
9021 * @pdev: PCI device pointer
9022 **/
qla4xxx_remove_adapter(struct pci_dev *pdev)9023 static void qla4xxx_remove_adapter(struct pci_dev *pdev)
9024 {
9025 struct scsi_qla_host *ha;
9026
9027 /*
9028 * If the PCI device is disabled then it means probe_adapter had
9029 * failed and resources already cleaned up on probe_adapter exit.
9030 */
9031 if (!pci_is_enabled(pdev))
9032 return;
9033
9034 ha = pci_get_drvdata(pdev);
9035
9036 if (is_qla40XX(ha))
9037 qla4xxx_prevent_other_port_reinit(ha);
9038
9039 /* destroy iface from sysfs */
9040 qla4xxx_destroy_ifaces(ha);
9041
9042 if ((!ql4xdisablesysfsboot) && ha->boot_kset)
9043 iscsi_boot_destroy_kset(ha->boot_kset);
9044
9045 qla4xxx_destroy_fw_ddb_session(ha);
9046 qla4_8xxx_free_sysfs_attr(ha);
9047
9048 qla4xxx_sysfs_ddb_remove(ha);
9049 scsi_remove_host(ha->host);
9050
9051 qla4xxx_free_adapter(ha);
9052
9053 scsi_host_put(ha->host);
9054
9055 pci_disable_pcie_error_reporting(pdev);
9056 pci_disable_device(pdev);
9057 }
9058
9059 /**
9060 * qla4xxx_config_dma_addressing() - Configure OS DMA addressing method.
9061 * @ha: HA context
9062 */
qla4xxx_config_dma_addressing(struct scsi_qla_host *ha)9063 static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha)
9064 {
9065 /* Update our PCI device dma_mask for full 64 bit mask */
9066 if (dma_set_mask_and_coherent(&ha->pdev->dev, DMA_BIT_MASK(64))) {
9067 dev_dbg(&ha->pdev->dev,
9068 "Failed to set 64 bit PCI consistent mask; "
9069 "using 32 bit.\n");
9070 dma_set_mask_and_coherent(&ha->pdev->dev, DMA_BIT_MASK(32));
9071 }
9072 }
9073
qla4xxx_slave_alloc(struct scsi_device *sdev)9074 static int qla4xxx_slave_alloc(struct scsi_device *sdev)
9075 {
9076 struct iscsi_cls_session *cls_sess;
9077 struct iscsi_session *sess;
9078 struct ddb_entry *ddb;
9079 int queue_depth = QL4_DEF_QDEPTH;
9080
9081 cls_sess = starget_to_session(sdev->sdev_target);
9082 sess = cls_sess->dd_data;
9083 ddb = sess->dd_data;
9084
9085 sdev->hostdata = ddb;
9086
9087 if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU)
9088 queue_depth = ql4xmaxqdepth;
9089
9090 scsi_change_queue_depth(sdev, queue_depth);
9091 return 0;
9092 }
9093
9094 /**
9095 * qla4xxx_del_from_active_array - returns an active srb
9096 * @ha: Pointer to host adapter structure.
9097 * @index: index into the active_array
9098 *
9099 * This routine removes and returns the srb at the specified index
9100 **/
qla4xxx_del_from_active_array(struct scsi_qla_host *ha, uint32_t index)9101 struct srb *qla4xxx_del_from_active_array(struct scsi_qla_host *ha,
9102 uint32_t index)
9103 {
9104 struct srb *srb = NULL;
9105 struct scsi_cmnd *cmd = NULL;
9106
9107 cmd = scsi_host_find_tag(ha->host, index);
9108 if (!cmd)
9109 return srb;
9110
9111 srb = (struct srb *)CMD_SP(cmd);
9112 if (!srb)
9113 return srb;
9114
9115 /* update counters */
9116 if (srb->flags & SRB_DMA_VALID) {
9117 ha->iocb_cnt -= srb->iocb_cnt;
9118 if (srb->cmd)
9119 srb->cmd->host_scribble =
9120 (unsigned char *)(unsigned long) MAX_SRBS;
9121 }
9122 return srb;
9123 }
9124
9125 /**
9126 * qla4xxx_eh_wait_on_command - waits for command to be returned by firmware
9127 * @ha: Pointer to host adapter structure.
9128 * @cmd: Scsi Command to wait on.
9129 *
9130 * This routine waits for the command to be returned by the Firmware
9131 * for some max time.
9132 **/
qla4xxx_eh_wait_on_command(struct scsi_qla_host *ha, struct scsi_cmnd *cmd)9133 static int qla4xxx_eh_wait_on_command(struct scsi_qla_host *ha,
9134 struct scsi_cmnd *cmd)
9135 {
9136 int done = 0;
9137 struct srb *rp;
9138 uint32_t max_wait_time = EH_WAIT_CMD_TOV;
9139 int ret = SUCCESS;
9140
9141 /* Dont wait on command if PCI error is being handled
9142 * by PCI AER driver
9143 */
9144 if (unlikely(pci_channel_offline(ha->pdev)) ||
9145 (test_bit(AF_EEH_BUSY, &ha->flags))) {
9146 ql4_printk(KERN_WARNING, ha, "scsi%ld: Return from %s\n",
9147 ha->host_no, __func__);
9148 return ret;
9149 }
9150
9151 do {
9152 /* Checking to see if its returned to OS */
9153 rp = (struct srb *) CMD_SP(cmd);
9154 if (rp == NULL) {
9155 done++;
9156 break;
9157 }
9158
9159 msleep(2000);
9160 } while (max_wait_time--);
9161
9162 return done;
9163 }
9164
9165 /**
9166 * qla4xxx_wait_for_hba_online - waits for HBA to come online
9167 * @ha: Pointer to host adapter structure
9168 **/
qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha)9169 static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha)
9170 {
9171 unsigned long wait_online;
9172
9173 wait_online = jiffies + (HBA_ONLINE_TOV * HZ);
9174 while (time_before(jiffies, wait_online)) {
9175
9176 if (adapter_up(ha))
9177 return QLA_SUCCESS;
9178
9179 msleep(2000);
9180 }
9181
9182 return QLA_ERROR;
9183 }
9184
9185 /**
9186 * qla4xxx_eh_wait_for_commands - wait for active cmds to finish.
9187 * @ha: pointer to HBA
9188 * @stgt: pointer to SCSI target
9189 * @sdev: pointer to SCSI device
9190 *
9191 * This function waits for all outstanding commands to a lun to complete. It
9192 * returns 0 if all pending commands are returned and 1 otherwise.
9193 **/
qla4xxx_eh_wait_for_commands(struct scsi_qla_host *ha, struct scsi_target *stgt, struct scsi_device *sdev)9194 static int qla4xxx_eh_wait_for_commands(struct scsi_qla_host *ha,
9195 struct scsi_target *stgt,
9196 struct scsi_device *sdev)
9197 {
9198 int cnt;
9199 int status = 0;
9200 struct scsi_cmnd *cmd;
9201
9202 /*
9203 * Waiting for all commands for the designated target or dev
9204 * in the active array
9205 */
9206 for (cnt = 0; cnt < ha->host->can_queue; cnt++) {
9207 cmd = scsi_host_find_tag(ha->host, cnt);
9208 if (cmd && stgt == scsi_target(cmd->device) &&
9209 (!sdev || sdev == cmd->device)) {
9210 if (!qla4xxx_eh_wait_on_command(ha, cmd)) {
9211 status++;
9212 break;
9213 }
9214 }
9215 }
9216 return status;
9217 }
9218
9219 /**
9220 * qla4xxx_eh_abort - callback for abort task.
9221 * @cmd: Pointer to Linux's SCSI command structure
9222 *
9223 * This routine is called by the Linux OS to abort the specified
9224 * command.
9225 **/
qla4xxx_eh_abort(struct scsi_cmnd *cmd)9226 static int qla4xxx_eh_abort(struct scsi_cmnd *cmd)
9227 {
9228 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
9229 unsigned int id = cmd->device->id;
9230 uint64_t lun = cmd->device->lun;
9231 unsigned long flags;
9232 struct srb *srb = NULL;
9233 int ret = SUCCESS;
9234 int wait = 0;
9235 int rval;
9236
9237 ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%llu: Abort command issued cmd=%p, cdb=0x%x\n",
9238 ha->host_no, id, lun, cmd, cmd->cmnd[0]);
9239
9240 rval = qla4xxx_isp_check_reg(ha);
9241 if (rval != QLA_SUCCESS) {
9242 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n");
9243 return FAILED;
9244 }
9245
9246 spin_lock_irqsave(&ha->hardware_lock, flags);
9247 srb = (struct srb *) CMD_SP(cmd);
9248 if (!srb) {
9249 spin_unlock_irqrestore(&ha->hardware_lock, flags);
9250 ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%llu: Specified command has already completed.\n",
9251 ha->host_no, id, lun);
9252 return SUCCESS;
9253 }
9254 kref_get(&srb->srb_ref);
9255 spin_unlock_irqrestore(&ha->hardware_lock, flags);
9256
9257 if (qla4xxx_abort_task(ha, srb) != QLA_SUCCESS) {
9258 DEBUG3(printk("scsi%ld:%d:%llu: Abort_task mbx failed.\n",
9259 ha->host_no, id, lun));
9260 ret = FAILED;
9261 } else {
9262 DEBUG3(printk("scsi%ld:%d:%llu: Abort_task mbx success.\n",
9263 ha->host_no, id, lun));
9264 wait = 1;
9265 }
9266
9267 kref_put(&srb->srb_ref, qla4xxx_srb_compl);
9268
9269 /* Wait for command to complete */
9270 if (wait) {
9271 if (!qla4xxx_eh_wait_on_command(ha, cmd)) {
9272 DEBUG2(printk("scsi%ld:%d:%llu: Abort handler timed out\n",
9273 ha->host_no, id, lun));
9274 ret = FAILED;
9275 }
9276 }
9277
9278 ql4_printk(KERN_INFO, ha,
9279 "scsi%ld:%d:%llu: Abort command - %s\n",
9280 ha->host_no, id, lun, (ret == SUCCESS) ? "succeeded" : "failed");
9281
9282 return ret;
9283 }
9284
9285 /**
9286 * qla4xxx_eh_device_reset - callback for target reset.
9287 * @cmd: Pointer to Linux's SCSI command structure
9288 *
9289 * This routine is called by the Linux OS to reset all luns on the
9290 * specified target.
9291 **/
qla4xxx_eh_device_reset(struct scsi_cmnd *cmd)9292 static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd)
9293 {
9294 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
9295 struct ddb_entry *ddb_entry = cmd->device->hostdata;
9296 int ret = FAILED, stat;
9297 int rval;
9298
9299 if (!ddb_entry)
9300 return ret;
9301
9302 ret = iscsi_block_scsi_eh(cmd);
9303 if (ret)
9304 return ret;
9305 ret = FAILED;
9306
9307 ql4_printk(KERN_INFO, ha,
9308 "scsi%ld:%d:%d:%llu: DEVICE RESET ISSUED.\n", ha->host_no,
9309 cmd->device->channel, cmd->device->id, cmd->device->lun);
9310
9311 DEBUG2(printk(KERN_INFO
9312 "scsi%ld: DEVICE_RESET cmd=%p jiffies = 0x%lx, to=%x,"
9313 "dpc_flags=%lx, status=%x allowed=%d\n", ha->host_no,
9314 cmd, jiffies, cmd->request->timeout / HZ,
9315 ha->dpc_flags, cmd->result, cmd->allowed));
9316
9317 rval = qla4xxx_isp_check_reg(ha);
9318 if (rval != QLA_SUCCESS) {
9319 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n");
9320 return FAILED;
9321 }
9322
9323 /* FIXME: wait for hba to go online */
9324 stat = qla4xxx_reset_lun(ha, ddb_entry, cmd->device->lun);
9325 if (stat != QLA_SUCCESS) {
9326 ql4_printk(KERN_INFO, ha, "DEVICE RESET FAILED. %d\n", stat);
9327 goto eh_dev_reset_done;
9328 }
9329
9330 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device),
9331 cmd->device)) {
9332 ql4_printk(KERN_INFO, ha,
9333 "DEVICE RESET FAILED - waiting for "
9334 "commands.\n");
9335 goto eh_dev_reset_done;
9336 }
9337
9338 /* Send marker. */
9339 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun,
9340 MM_LUN_RESET) != QLA_SUCCESS)
9341 goto eh_dev_reset_done;
9342
9343 ql4_printk(KERN_INFO, ha,
9344 "scsi(%ld:%d:%d:%llu): DEVICE RESET SUCCEEDED.\n",
9345 ha->host_no, cmd->device->channel, cmd->device->id,
9346 cmd->device->lun);
9347
9348 ret = SUCCESS;
9349
9350 eh_dev_reset_done:
9351
9352 return ret;
9353 }
9354
9355 /**
9356 * qla4xxx_eh_target_reset - callback for target reset.
9357 * @cmd: Pointer to Linux's SCSI command structure
9358 *
9359 * This routine is called by the Linux OS to reset the target.
9360 **/
qla4xxx_eh_target_reset(struct scsi_cmnd *cmd)9361 static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd)
9362 {
9363 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
9364 struct ddb_entry *ddb_entry = cmd->device->hostdata;
9365 int stat, ret;
9366 int rval;
9367
9368 if (!ddb_entry)
9369 return FAILED;
9370
9371 ret = iscsi_block_scsi_eh(cmd);
9372 if (ret)
9373 return ret;
9374
9375 starget_printk(KERN_INFO, scsi_target(cmd->device),
9376 "WARM TARGET RESET ISSUED.\n");
9377
9378 DEBUG2(printk(KERN_INFO
9379 "scsi%ld: TARGET_DEVICE_RESET cmd=%p jiffies = 0x%lx, "
9380 "to=%x,dpc_flags=%lx, status=%x allowed=%d\n",
9381 ha->host_no, cmd, jiffies, cmd->request->timeout / HZ,
9382 ha->dpc_flags, cmd->result, cmd->allowed));
9383
9384 rval = qla4xxx_isp_check_reg(ha);
9385 if (rval != QLA_SUCCESS) {
9386 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n");
9387 return FAILED;
9388 }
9389
9390 stat = qla4xxx_reset_target(ha, ddb_entry);
9391 if (stat != QLA_SUCCESS) {
9392 starget_printk(KERN_INFO, scsi_target(cmd->device),
9393 "WARM TARGET RESET FAILED.\n");
9394 return FAILED;
9395 }
9396
9397 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device),
9398 NULL)) {
9399 starget_printk(KERN_INFO, scsi_target(cmd->device),
9400 "WARM TARGET DEVICE RESET FAILED - "
9401 "waiting for commands.\n");
9402 return FAILED;
9403 }
9404
9405 /* Send marker. */
9406 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun,
9407 MM_TGT_WARM_RESET) != QLA_SUCCESS) {
9408 starget_printk(KERN_INFO, scsi_target(cmd->device),
9409 "WARM TARGET DEVICE RESET FAILED - "
9410 "marker iocb failed.\n");
9411 return FAILED;
9412 }
9413
9414 starget_printk(KERN_INFO, scsi_target(cmd->device),
9415 "WARM TARGET RESET SUCCEEDED.\n");
9416 return SUCCESS;
9417 }
9418
9419 /**
9420 * qla4xxx_is_eh_active - check if error handler is running
9421 * @shost: Pointer to SCSI Host struct
9422 *
9423 * This routine finds that if reset host is called in EH
9424 * scenario or from some application like sg_reset
9425 **/
qla4xxx_is_eh_active(struct Scsi_Host *shost)9426 static int qla4xxx_is_eh_active(struct Scsi_Host *shost)
9427 {
9428 if (shost->shost_state == SHOST_RECOVERY)
9429 return 1;
9430 return 0;
9431 }
9432
9433 /**
9434 * qla4xxx_eh_host_reset - kernel callback
9435 * @cmd: Pointer to Linux's SCSI command structure
9436 *
9437 * This routine is invoked by the Linux kernel to perform fatal error
9438 * recovery on the specified adapter.
9439 **/
qla4xxx_eh_host_reset(struct scsi_cmnd *cmd)9440 static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd)
9441 {
9442 int return_status = FAILED;
9443 struct scsi_qla_host *ha;
9444 int rval;
9445
9446 ha = to_qla_host(cmd->device->host);
9447
9448 rval = qla4xxx_isp_check_reg(ha);
9449 if (rval != QLA_SUCCESS) {
9450 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n");
9451 return FAILED;
9452 }
9453
9454 if ((is_qla8032(ha) || is_qla8042(ha)) && ql4xdontresethba)
9455 qla4_83xx_set_idc_dontreset(ha);
9456
9457 /*
9458 * For ISP8324 and ISP8042, if IDC_CTRL DONTRESET_BIT0 is set by other
9459 * protocol drivers, we should not set device_state to NEED_RESET
9460 */
9461 if (ql4xdontresethba ||
9462 ((is_qla8032(ha) || is_qla8042(ha)) &&
9463 qla4_83xx_idc_dontreset(ha))) {
9464 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n",
9465 ha->host_no, __func__));
9466
9467 /* Clear outstanding srb in queues */
9468 if (qla4xxx_is_eh_active(cmd->device->host))
9469 qla4xxx_abort_active_cmds(ha, DID_ABORT << 16);
9470
9471 return FAILED;
9472 }
9473
9474 ql4_printk(KERN_INFO, ha,
9475 "scsi(%ld:%d:%d:%llu): HOST RESET ISSUED.\n", ha->host_no,
9476 cmd->device->channel, cmd->device->id, cmd->device->lun);
9477
9478 if (qla4xxx_wait_for_hba_online(ha) != QLA_SUCCESS) {
9479 DEBUG2(printk("scsi%ld:%d: %s: Unable to reset host. Adapter "
9480 "DEAD.\n", ha->host_no, cmd->device->channel,
9481 __func__));
9482
9483 return FAILED;
9484 }
9485
9486 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
9487 if (is_qla80XX(ha))
9488 set_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
9489 else
9490 set_bit(DPC_RESET_HA, &ha->dpc_flags);
9491 }
9492
9493 if (qla4xxx_recover_adapter(ha) == QLA_SUCCESS)
9494 return_status = SUCCESS;
9495
9496 ql4_printk(KERN_INFO, ha, "HOST RESET %s.\n",
9497 return_status == FAILED ? "FAILED" : "SUCCEEDED");
9498
9499 return return_status;
9500 }
9501
qla4xxx_context_reset(struct scsi_qla_host *ha)9502 static int qla4xxx_context_reset(struct scsi_qla_host *ha)
9503 {
9504 uint32_t mbox_cmd[MBOX_REG_COUNT];
9505 uint32_t mbox_sts[MBOX_REG_COUNT];
9506 struct addr_ctrl_blk_def *acb = NULL;
9507 uint32_t acb_len = sizeof(struct addr_ctrl_blk_def);
9508 int rval = QLA_SUCCESS;
9509 dma_addr_t acb_dma;
9510
9511 acb = dma_alloc_coherent(&ha->pdev->dev,
9512 sizeof(struct addr_ctrl_blk_def),
9513 &acb_dma, GFP_KERNEL);
9514 if (!acb) {
9515 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc acb\n",
9516 __func__);
9517 rval = -ENOMEM;
9518 goto exit_port_reset;
9519 }
9520
9521 memset(acb, 0, acb_len);
9522
9523 rval = qla4xxx_get_acb(ha, acb_dma, PRIMARI_ACB, acb_len);
9524 if (rval != QLA_SUCCESS) {
9525 rval = -EIO;
9526 goto exit_free_acb;
9527 }
9528
9529 rval = qla4xxx_disable_acb(ha);
9530 if (rval != QLA_SUCCESS) {
9531 rval = -EIO;
9532 goto exit_free_acb;
9533 }
9534
9535 wait_for_completion_timeout(&ha->disable_acb_comp,
9536 DISABLE_ACB_TOV * HZ);
9537
9538 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], acb_dma);
9539 if (rval != QLA_SUCCESS) {
9540 rval = -EIO;
9541 goto exit_free_acb;
9542 }
9543
9544 exit_free_acb:
9545 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk_def),
9546 acb, acb_dma);
9547 exit_port_reset:
9548 DEBUG2(ql4_printk(KERN_INFO, ha, "%s %s\n", __func__,
9549 rval == QLA_SUCCESS ? "SUCCEEDED" : "FAILED"));
9550 return rval;
9551 }
9552
qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type)9553 static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type)
9554 {
9555 struct scsi_qla_host *ha = to_qla_host(shost);
9556 int rval = QLA_SUCCESS;
9557 uint32_t idc_ctrl;
9558
9559 if (ql4xdontresethba) {
9560 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Don't Reset HBA\n",
9561 __func__));
9562 rval = -EPERM;
9563 goto exit_host_reset;
9564 }
9565
9566 if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
9567 goto recover_adapter;
9568
9569 switch (reset_type) {
9570 case SCSI_ADAPTER_RESET:
9571 set_bit(DPC_RESET_HA, &ha->dpc_flags);
9572 break;
9573 case SCSI_FIRMWARE_RESET:
9574 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
9575 if (is_qla80XX(ha))
9576 /* set firmware context reset */
9577 set_bit(DPC_RESET_HA_FW_CONTEXT,
9578 &ha->dpc_flags);
9579 else {
9580 rval = qla4xxx_context_reset(ha);
9581 goto exit_host_reset;
9582 }
9583 }
9584 break;
9585 }
9586
9587 recover_adapter:
9588 /* For ISP8324 and ISP8042 set graceful reset bit in IDC_DRV_CTRL if
9589 * reset is issued by application */
9590 if ((is_qla8032(ha) || is_qla8042(ha)) &&
9591 test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
9592 idc_ctrl = qla4_83xx_rd_reg(ha, QLA83XX_IDC_DRV_CTRL);
9593 qla4_83xx_wr_reg(ha, QLA83XX_IDC_DRV_CTRL,
9594 (idc_ctrl | GRACEFUL_RESET_BIT1));
9595 }
9596
9597 rval = qla4xxx_recover_adapter(ha);
9598 if (rval != QLA_SUCCESS) {
9599 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: recover adapter fail\n",
9600 __func__));
9601 rval = -EIO;
9602 }
9603
9604 exit_host_reset:
9605 return rval;
9606 }
9607
9608 /* PCI AER driver recovers from all correctable errors w/o
9609 * driver intervention. For uncorrectable errors PCI AER
9610 * driver calls the following device driver's callbacks
9611 *
9612 * - Fatal Errors - link_reset
9613 * - Non-Fatal Errors - driver's error_detected() which
9614 * returns CAN_RECOVER, NEED_RESET or DISCONNECT.
9615 *
9616 * PCI AER driver calls
9617 * CAN_RECOVER - driver's mmio_enabled(), mmio_enabled()
9618 * returns RECOVERED or NEED_RESET if fw_hung
9619 * NEED_RESET - driver's slot_reset()
9620 * DISCONNECT - device is dead & cannot recover
9621 * RECOVERED - driver's resume()
9622 */
9623 static pci_ers_result_t
qla4xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)9624 qla4xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
9625 {
9626 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9627
9628 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: error detected:state %x\n",
9629 ha->host_no, __func__, state);
9630
9631 if (!is_aer_supported(ha))
9632 return PCI_ERS_RESULT_NONE;
9633
9634 switch (state) {
9635 case pci_channel_io_normal:
9636 clear_bit(AF_EEH_BUSY, &ha->flags);
9637 return PCI_ERS_RESULT_CAN_RECOVER;
9638 case pci_channel_io_frozen:
9639 set_bit(AF_EEH_BUSY, &ha->flags);
9640 qla4xxx_mailbox_premature_completion(ha);
9641 qla4xxx_free_irqs(ha);
9642 pci_disable_device(pdev);
9643 /* Return back all IOs */
9644 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
9645 return PCI_ERS_RESULT_NEED_RESET;
9646 case pci_channel_io_perm_failure:
9647 set_bit(AF_EEH_BUSY, &ha->flags);
9648 set_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags);
9649 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
9650 return PCI_ERS_RESULT_DISCONNECT;
9651 }
9652 return PCI_ERS_RESULT_NEED_RESET;
9653 }
9654
9655 /**
9656 * qla4xxx_pci_mmio_enabled() gets called if
9657 * qla4xxx_pci_error_detected() returns PCI_ERS_RESULT_CAN_RECOVER
9658 * and read/write to the device still works.
9659 * @pdev: PCI device pointer
9660 **/
9661 static pci_ers_result_t
qla4xxx_pci_mmio_enabled(struct pci_dev *pdev)9662 qla4xxx_pci_mmio_enabled(struct pci_dev *pdev)
9663 {
9664 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9665
9666 if (!is_aer_supported(ha))
9667 return PCI_ERS_RESULT_NONE;
9668
9669 return PCI_ERS_RESULT_RECOVERED;
9670 }
9671
qla4_8xxx_error_recovery(struct scsi_qla_host *ha)9672 static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha)
9673 {
9674 uint32_t rval = QLA_ERROR;
9675 int fn;
9676 struct pci_dev *other_pdev = NULL;
9677
9678 ql4_printk(KERN_WARNING, ha, "scsi%ld: In %s\n", ha->host_no, __func__);
9679
9680 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
9681
9682 if (test_bit(AF_ONLINE, &ha->flags)) {
9683 clear_bit(AF_ONLINE, &ha->flags);
9684 clear_bit(AF_LINK_UP, &ha->flags);
9685 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session);
9686 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
9687 }
9688
9689 fn = PCI_FUNC(ha->pdev->devfn);
9690 if (is_qla8022(ha)) {
9691 while (fn > 0) {
9692 fn--;
9693 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Finding PCI device at func %x\n",
9694 ha->host_no, __func__, fn);
9695 /* Get the pci device given the domain, bus,
9696 * slot/function number */
9697 other_pdev = pci_get_domain_bus_and_slot(
9698 pci_domain_nr(ha->pdev->bus),
9699 ha->pdev->bus->number,
9700 PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
9701 fn));
9702
9703 if (!other_pdev)
9704 continue;
9705
9706 if (atomic_read(&other_pdev->enable_cnt)) {
9707 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Found PCI func in enabled state%x\n",
9708 ha->host_no, __func__, fn);
9709 pci_dev_put(other_pdev);
9710 break;
9711 }
9712 pci_dev_put(other_pdev);
9713 }
9714 } else {
9715 /* this case is meant for ISP83xx/ISP84xx only */
9716 if (qla4_83xx_can_perform_reset(ha)) {
9717 /* reset fn as iSCSI is going to perform the reset */
9718 fn = 0;
9719 }
9720 }
9721
9722 /* The first function on the card, the reset owner will
9723 * start & initialize the firmware. The other functions
9724 * on the card will reset the firmware context
9725 */
9726 if (!fn) {
9727 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn being reset "
9728 "0x%x is the owner\n", ha->host_no, __func__,
9729 ha->pdev->devfn);
9730
9731 ha->isp_ops->idc_lock(ha);
9732 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9733 QLA8XXX_DEV_COLD);
9734 ha->isp_ops->idc_unlock(ha);
9735
9736 rval = qla4_8xxx_update_idc_reg(ha);
9737 if (rval == QLA_ERROR) {
9738 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: FAILED\n",
9739 ha->host_no, __func__);
9740 ha->isp_ops->idc_lock(ha);
9741 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9742 QLA8XXX_DEV_FAILED);
9743 ha->isp_ops->idc_unlock(ha);
9744 goto exit_error_recovery;
9745 }
9746
9747 clear_bit(AF_FW_RECOVERY, &ha->flags);
9748 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
9749
9750 if (rval != QLA_SUCCESS) {
9751 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: "
9752 "FAILED\n", ha->host_no, __func__);
9753 qla4xxx_free_irqs(ha);
9754 ha->isp_ops->idc_lock(ha);
9755 qla4_8xxx_clear_drv_active(ha);
9756 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9757 QLA8XXX_DEV_FAILED);
9758 ha->isp_ops->idc_unlock(ha);
9759 } else {
9760 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: "
9761 "READY\n", ha->host_no, __func__);
9762 ha->isp_ops->idc_lock(ha);
9763 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9764 QLA8XXX_DEV_READY);
9765 /* Clear driver state register */
9766 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_STATE, 0);
9767 qla4_8xxx_set_drv_active(ha);
9768 ha->isp_ops->idc_unlock(ha);
9769 ha->isp_ops->enable_intrs(ha);
9770 }
9771 } else {
9772 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn 0x%x is not "
9773 "the reset owner\n", ha->host_no, __func__,
9774 ha->pdev->devfn);
9775 if ((qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE) ==
9776 QLA8XXX_DEV_READY)) {
9777 clear_bit(AF_FW_RECOVERY, &ha->flags);
9778 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
9779 if (rval == QLA_SUCCESS)
9780 ha->isp_ops->enable_intrs(ha);
9781 else
9782 qla4xxx_free_irqs(ha);
9783
9784 ha->isp_ops->idc_lock(ha);
9785 qla4_8xxx_set_drv_active(ha);
9786 ha->isp_ops->idc_unlock(ha);
9787 }
9788 }
9789 exit_error_recovery:
9790 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
9791 return rval;
9792 }
9793
9794 static pci_ers_result_t
qla4xxx_pci_slot_reset(struct pci_dev *pdev)9795 qla4xxx_pci_slot_reset(struct pci_dev *pdev)
9796 {
9797 pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
9798 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9799 int rc;
9800
9801 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: slot_reset\n",
9802 ha->host_no, __func__);
9803
9804 if (!is_aer_supported(ha))
9805 return PCI_ERS_RESULT_NONE;
9806
9807 /* Restore the saved state of PCIe device -
9808 * BAR registers, PCI Config space, PCIX, MSI,
9809 * IOV states
9810 */
9811 pci_restore_state(pdev);
9812
9813 /* pci_restore_state() clears the saved_state flag of the device
9814 * save restored state which resets saved_state flag
9815 */
9816 pci_save_state(pdev);
9817
9818 /* Initialize device or resume if in suspended state */
9819 rc = pci_enable_device(pdev);
9820 if (rc) {
9821 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Can't re-enable "
9822 "device after reset\n", ha->host_no, __func__);
9823 goto exit_slot_reset;
9824 }
9825
9826 ha->isp_ops->disable_intrs(ha);
9827
9828 if (is_qla80XX(ha)) {
9829 if (qla4_8xxx_error_recovery(ha) == QLA_SUCCESS) {
9830 ret = PCI_ERS_RESULT_RECOVERED;
9831 goto exit_slot_reset;
9832 } else
9833 goto exit_slot_reset;
9834 }
9835
9836 exit_slot_reset:
9837 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Return=%x\n"
9838 "device after reset\n", ha->host_no, __func__, ret);
9839 return ret;
9840 }
9841
9842 static void
qla4xxx_pci_resume(struct pci_dev *pdev)9843 qla4xxx_pci_resume(struct pci_dev *pdev)
9844 {
9845 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9846 int ret;
9847
9848 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: pci_resume\n",
9849 ha->host_no, __func__);
9850
9851 ret = qla4xxx_wait_for_hba_online(ha);
9852 if (ret != QLA_SUCCESS) {
9853 ql4_printk(KERN_ERR, ha, "scsi%ld: %s: the device failed to "
9854 "resume I/O from slot/link_reset\n", ha->host_no,
9855 __func__);
9856 }
9857
9858 clear_bit(AF_EEH_BUSY, &ha->flags);
9859 }
9860
9861 static const struct pci_error_handlers qla4xxx_err_handler = {
9862 .error_detected = qla4xxx_pci_error_detected,
9863 .mmio_enabled = qla4xxx_pci_mmio_enabled,
9864 .slot_reset = qla4xxx_pci_slot_reset,
9865 .resume = qla4xxx_pci_resume,
9866 };
9867
9868 static struct pci_device_id qla4xxx_pci_tbl[] = {
9869 {
9870 .vendor = PCI_VENDOR_ID_QLOGIC,
9871 .device = PCI_DEVICE_ID_QLOGIC_ISP4010,
9872 .subvendor = PCI_ANY_ID,
9873 .subdevice = PCI_ANY_ID,
9874 },
9875 {
9876 .vendor = PCI_VENDOR_ID_QLOGIC,
9877 .device = PCI_DEVICE_ID_QLOGIC_ISP4022,
9878 .subvendor = PCI_ANY_ID,
9879 .subdevice = PCI_ANY_ID,
9880 },
9881 {
9882 .vendor = PCI_VENDOR_ID_QLOGIC,
9883 .device = PCI_DEVICE_ID_QLOGIC_ISP4032,
9884 .subvendor = PCI_ANY_ID,
9885 .subdevice = PCI_ANY_ID,
9886 },
9887 {
9888 .vendor = PCI_VENDOR_ID_QLOGIC,
9889 .device = PCI_DEVICE_ID_QLOGIC_ISP8022,
9890 .subvendor = PCI_ANY_ID,
9891 .subdevice = PCI_ANY_ID,
9892 },
9893 {
9894 .vendor = PCI_VENDOR_ID_QLOGIC,
9895 .device = PCI_DEVICE_ID_QLOGIC_ISP8324,
9896 .subvendor = PCI_ANY_ID,
9897 .subdevice = PCI_ANY_ID,
9898 },
9899 {
9900 .vendor = PCI_VENDOR_ID_QLOGIC,
9901 .device = PCI_DEVICE_ID_QLOGIC_ISP8042,
9902 .subvendor = PCI_ANY_ID,
9903 .subdevice = PCI_ANY_ID,
9904 },
9905 {0, 0},
9906 };
9907 MODULE_DEVICE_TABLE(pci, qla4xxx_pci_tbl);
9908
9909 static struct pci_driver qla4xxx_pci_driver = {
9910 .name = DRIVER_NAME,
9911 .id_table = qla4xxx_pci_tbl,
9912 .probe = qla4xxx_probe_adapter,
9913 .remove = qla4xxx_remove_adapter,
9914 .err_handler = &qla4xxx_err_handler,
9915 };
9916
qla4xxx_module_init(void)9917 static int __init qla4xxx_module_init(void)
9918 {
9919 int ret;
9920
9921 if (ql4xqfulltracking)
9922 qla4xxx_driver_template.track_queue_depth = 1;
9923
9924 /* Allocate cache for SRBs. */
9925 srb_cachep = kmem_cache_create("qla4xxx_srbs", sizeof(struct srb), 0,
9926 SLAB_HWCACHE_ALIGN, NULL);
9927 if (srb_cachep == NULL) {
9928 printk(KERN_ERR
9929 "%s: Unable to allocate SRB cache..."
9930 "Failing load!\n", DRIVER_NAME);
9931 ret = -ENOMEM;
9932 goto no_srp_cache;
9933 }
9934
9935 /* Derive version string. */
9936 strcpy(qla4xxx_version_str, QLA4XXX_DRIVER_VERSION);
9937 if (ql4xextended_error_logging)
9938 strcat(qla4xxx_version_str, "-debug");
9939
9940 qla4xxx_scsi_transport =
9941 iscsi_register_transport(&qla4xxx_iscsi_transport);
9942 if (!qla4xxx_scsi_transport){
9943 ret = -ENODEV;
9944 goto release_srb_cache;
9945 }
9946
9947 ret = pci_register_driver(&qla4xxx_pci_driver);
9948 if (ret)
9949 goto unregister_transport;
9950
9951 printk(KERN_INFO "QLogic iSCSI HBA Driver\n");
9952 return 0;
9953
9954 unregister_transport:
9955 iscsi_unregister_transport(&qla4xxx_iscsi_transport);
9956 release_srb_cache:
9957 kmem_cache_destroy(srb_cachep);
9958 no_srp_cache:
9959 return ret;
9960 }
9961
qla4xxx_module_exit(void)9962 static void __exit qla4xxx_module_exit(void)
9963 {
9964 pci_unregister_driver(&qla4xxx_pci_driver);
9965 iscsi_unregister_transport(&qla4xxx_iscsi_transport);
9966 kmem_cache_destroy(srb_cachep);
9967 }
9968
9969 module_init(qla4xxx_module_init);
9970 module_exit(qla4xxx_module_exit);
9971
9972 MODULE_AUTHOR("QLogic Corporation");
9973 MODULE_DESCRIPTION("QLogic iSCSI HBA Driver");
9974 MODULE_LICENSE("GPL");
9975 MODULE_VERSION(QLA4XXX_DRIVER_VERSION);
9976