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 param_info = nla_data(attr);
977
978 switch (param_info->param) {
979 case ISCSI_CHAP_PARAM_INDEX:
980 chap_rec.chap_tbl_idx = *(uint16_t *)param_info->value;
981 break;
982 case ISCSI_CHAP_PARAM_CHAP_TYPE:
983 chap_rec.chap_type = param_info->value[0];
984 break;
985 case ISCSI_CHAP_PARAM_USERNAME:
986 size = min_t(size_t, sizeof(chap_rec.username),
987 param_info->len);
988 memcpy(chap_rec.username, param_info->value, size);
989 break;
990 case ISCSI_CHAP_PARAM_PASSWORD:
991 size = min_t(size_t, sizeof(chap_rec.password),
992 param_info->len);
993 memcpy(chap_rec.password, param_info->value, size);
994 break;
995 case ISCSI_CHAP_PARAM_PASSWORD_LEN:
996 chap_rec.password_length = param_info->value[0];
997 break;
998 default:
999 ql4_printk(KERN_ERR, ha,
1000 "%s: No such sysfs attribute\n", __func__);
1001 rc = -ENOSYS;
1002 goto exit_set_chap;
1003 }
1004 }
1005
1006 if (chap_rec.chap_type == CHAP_TYPE_IN)
1007 type = BIDI_CHAP;
1008 else
1009 type = LOCAL_CHAP;
1010
1011 if (is_qla80XX(ha))
1012 max_chap_entries = (ha->hw.flt_chap_size / 2) /
1013 sizeof(struct ql4_chap_table);
1014 else
1015 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
1016
1017 mutex_lock(&ha->chap_sem);
1018 if (chap_rec.chap_tbl_idx < max_chap_entries) {
1019 rc = qla4xxx_get_chap_by_index(ha, chap_rec.chap_tbl_idx,
1020 &chap_entry);
1021 if (!rc) {
1022 if (!(type == qla4xxx_get_chap_type(chap_entry))) {
1023 ql4_printk(KERN_INFO, ha,
1024 "Type mismatch for CHAP entry %d\n",
1025 chap_rec.chap_tbl_idx);
1026 rc = -EINVAL;
1027 goto exit_unlock_chap;
1028 }
1029
1030 /* If chap index is in use then don't modify it */
1031 rc = qla4xxx_is_chap_active(shost,
1032 chap_rec.chap_tbl_idx);
1033 if (rc) {
1034 ql4_printk(KERN_INFO, ha,
1035 "CHAP entry %d is in use\n",
1036 chap_rec.chap_tbl_idx);
1037 rc = -EBUSY;
1038 goto exit_unlock_chap;
1039 }
1040 }
1041 } else {
1042 rc = qla4xxx_find_free_chap_index(ha, &chap_rec.chap_tbl_idx);
1043 if (rc) {
1044 ql4_printk(KERN_INFO, ha, "CHAP entry not available\n");
1045 rc = -EBUSY;
1046 goto exit_unlock_chap;
1047 }
1048 }
1049
1050 rc = qla4xxx_set_chap(ha, chap_rec.username, chap_rec.password,
1051 chap_rec.chap_tbl_idx, type);
1052
1053 exit_unlock_chap:
1054 mutex_unlock(&ha->chap_sem);
1055
1056 exit_set_chap:
1057 return rc;
1058 }
1059
1060
qla4xxx_get_host_stats(struct Scsi_Host * shost,char * buf,int len)1061 static int qla4xxx_get_host_stats(struct Scsi_Host *shost, char *buf, int len)
1062 {
1063 struct scsi_qla_host *ha = to_qla_host(shost);
1064 struct iscsi_offload_host_stats *host_stats = NULL;
1065 int host_stats_size;
1066 int ret = 0;
1067 int ddb_idx = 0;
1068 struct ql_iscsi_stats *ql_iscsi_stats = NULL;
1069 int stats_size;
1070 dma_addr_t iscsi_stats_dma;
1071
1072 DEBUG2(ql4_printk(KERN_INFO, ha, "Func: %s\n", __func__));
1073
1074 host_stats_size = sizeof(struct iscsi_offload_host_stats);
1075
1076 if (host_stats_size != len) {
1077 ql4_printk(KERN_INFO, ha, "%s: host_stats size mismatch expected = %d, is = %d\n",
1078 __func__, len, host_stats_size);
1079 ret = -EINVAL;
1080 goto exit_host_stats;
1081 }
1082 host_stats = (struct iscsi_offload_host_stats *)buf;
1083
1084 if (!buf) {
1085 ret = -ENOMEM;
1086 goto exit_host_stats;
1087 }
1088
1089 stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats));
1090
1091 ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size,
1092 &iscsi_stats_dma, GFP_KERNEL);
1093 if (!ql_iscsi_stats) {
1094 ql4_printk(KERN_ERR, ha,
1095 "Unable to allocate memory for iscsi stats\n");
1096 ret = -ENOMEM;
1097 goto exit_host_stats;
1098 }
1099
1100 ret = qla4xxx_get_mgmt_data(ha, ddb_idx, stats_size,
1101 iscsi_stats_dma);
1102 if (ret != QLA_SUCCESS) {
1103 ql4_printk(KERN_ERR, ha,
1104 "Unable to retrieve iscsi stats\n");
1105 ret = -EIO;
1106 goto exit_host_stats;
1107 }
1108 host_stats->mactx_frames = le64_to_cpu(ql_iscsi_stats->mac_tx_frames);
1109 host_stats->mactx_bytes = le64_to_cpu(ql_iscsi_stats->mac_tx_bytes);
1110 host_stats->mactx_multicast_frames =
1111 le64_to_cpu(ql_iscsi_stats->mac_tx_multicast_frames);
1112 host_stats->mactx_broadcast_frames =
1113 le64_to_cpu(ql_iscsi_stats->mac_tx_broadcast_frames);
1114 host_stats->mactx_pause_frames =
1115 le64_to_cpu(ql_iscsi_stats->mac_tx_pause_frames);
1116 host_stats->mactx_control_frames =
1117 le64_to_cpu(ql_iscsi_stats->mac_tx_control_frames);
1118 host_stats->mactx_deferral =
1119 le64_to_cpu(ql_iscsi_stats->mac_tx_deferral);
1120 host_stats->mactx_excess_deferral =
1121 le64_to_cpu(ql_iscsi_stats->mac_tx_excess_deferral);
1122 host_stats->mactx_late_collision =
1123 le64_to_cpu(ql_iscsi_stats->mac_tx_late_collision);
1124 host_stats->mactx_abort = le64_to_cpu(ql_iscsi_stats->mac_tx_abort);
1125 host_stats->mactx_single_collision =
1126 le64_to_cpu(ql_iscsi_stats->mac_tx_single_collision);
1127 host_stats->mactx_multiple_collision =
1128 le64_to_cpu(ql_iscsi_stats->mac_tx_multiple_collision);
1129 host_stats->mactx_collision =
1130 le64_to_cpu(ql_iscsi_stats->mac_tx_collision);
1131 host_stats->mactx_frames_dropped =
1132 le64_to_cpu(ql_iscsi_stats->mac_tx_frames_dropped);
1133 host_stats->mactx_jumbo_frames =
1134 le64_to_cpu(ql_iscsi_stats->mac_tx_jumbo_frames);
1135 host_stats->macrx_frames = le64_to_cpu(ql_iscsi_stats->mac_rx_frames);
1136 host_stats->macrx_bytes = le64_to_cpu(ql_iscsi_stats->mac_rx_bytes);
1137 host_stats->macrx_unknown_control_frames =
1138 le64_to_cpu(ql_iscsi_stats->mac_rx_unknown_control_frames);
1139 host_stats->macrx_pause_frames =
1140 le64_to_cpu(ql_iscsi_stats->mac_rx_pause_frames);
1141 host_stats->macrx_control_frames =
1142 le64_to_cpu(ql_iscsi_stats->mac_rx_control_frames);
1143 host_stats->macrx_dribble =
1144 le64_to_cpu(ql_iscsi_stats->mac_rx_dribble);
1145 host_stats->macrx_frame_length_error =
1146 le64_to_cpu(ql_iscsi_stats->mac_rx_frame_length_error);
1147 host_stats->macrx_jabber = le64_to_cpu(ql_iscsi_stats->mac_rx_jabber);
1148 host_stats->macrx_carrier_sense_error =
1149 le64_to_cpu(ql_iscsi_stats->mac_rx_carrier_sense_error);
1150 host_stats->macrx_frame_discarded =
1151 le64_to_cpu(ql_iscsi_stats->mac_rx_frame_discarded);
1152 host_stats->macrx_frames_dropped =
1153 le64_to_cpu(ql_iscsi_stats->mac_rx_frames_dropped);
1154 host_stats->mac_crc_error = le64_to_cpu(ql_iscsi_stats->mac_crc_error);
1155 host_stats->mac_encoding_error =
1156 le64_to_cpu(ql_iscsi_stats->mac_encoding_error);
1157 host_stats->macrx_length_error_large =
1158 le64_to_cpu(ql_iscsi_stats->mac_rx_length_error_large);
1159 host_stats->macrx_length_error_small =
1160 le64_to_cpu(ql_iscsi_stats->mac_rx_length_error_small);
1161 host_stats->macrx_multicast_frames =
1162 le64_to_cpu(ql_iscsi_stats->mac_rx_multicast_frames);
1163 host_stats->macrx_broadcast_frames =
1164 le64_to_cpu(ql_iscsi_stats->mac_rx_broadcast_frames);
1165 host_stats->iptx_packets = le64_to_cpu(ql_iscsi_stats->ip_tx_packets);
1166 host_stats->iptx_bytes = le64_to_cpu(ql_iscsi_stats->ip_tx_bytes);
1167 host_stats->iptx_fragments =
1168 le64_to_cpu(ql_iscsi_stats->ip_tx_fragments);
1169 host_stats->iprx_packets = le64_to_cpu(ql_iscsi_stats->ip_rx_packets);
1170 host_stats->iprx_bytes = le64_to_cpu(ql_iscsi_stats->ip_rx_bytes);
1171 host_stats->iprx_fragments =
1172 le64_to_cpu(ql_iscsi_stats->ip_rx_fragments);
1173 host_stats->ip_datagram_reassembly =
1174 le64_to_cpu(ql_iscsi_stats->ip_datagram_reassembly);
1175 host_stats->ip_invalid_address_error =
1176 le64_to_cpu(ql_iscsi_stats->ip_invalid_address_error);
1177 host_stats->ip_error_packets =
1178 le64_to_cpu(ql_iscsi_stats->ip_error_packets);
1179 host_stats->ip_fragrx_overlap =
1180 le64_to_cpu(ql_iscsi_stats->ip_fragrx_overlap);
1181 host_stats->ip_fragrx_outoforder =
1182 le64_to_cpu(ql_iscsi_stats->ip_fragrx_outoforder);
1183 host_stats->ip_datagram_reassembly_timeout =
1184 le64_to_cpu(ql_iscsi_stats->ip_datagram_reassembly_timeout);
1185 host_stats->ipv6tx_packets =
1186 le64_to_cpu(ql_iscsi_stats->ipv6_tx_packets);
1187 host_stats->ipv6tx_bytes = le64_to_cpu(ql_iscsi_stats->ipv6_tx_bytes);
1188 host_stats->ipv6tx_fragments =
1189 le64_to_cpu(ql_iscsi_stats->ipv6_tx_fragments);
1190 host_stats->ipv6rx_packets =
1191 le64_to_cpu(ql_iscsi_stats->ipv6_rx_packets);
1192 host_stats->ipv6rx_bytes = le64_to_cpu(ql_iscsi_stats->ipv6_rx_bytes);
1193 host_stats->ipv6rx_fragments =
1194 le64_to_cpu(ql_iscsi_stats->ipv6_rx_fragments);
1195 host_stats->ipv6_datagram_reassembly =
1196 le64_to_cpu(ql_iscsi_stats->ipv6_datagram_reassembly);
1197 host_stats->ipv6_invalid_address_error =
1198 le64_to_cpu(ql_iscsi_stats->ipv6_invalid_address_error);
1199 host_stats->ipv6_error_packets =
1200 le64_to_cpu(ql_iscsi_stats->ipv6_error_packets);
1201 host_stats->ipv6_fragrx_overlap =
1202 le64_to_cpu(ql_iscsi_stats->ipv6_fragrx_overlap);
1203 host_stats->ipv6_fragrx_outoforder =
1204 le64_to_cpu(ql_iscsi_stats->ipv6_fragrx_outoforder);
1205 host_stats->ipv6_datagram_reassembly_timeout =
1206 le64_to_cpu(ql_iscsi_stats->ipv6_datagram_reassembly_timeout);
1207 host_stats->tcptx_segments =
1208 le64_to_cpu(ql_iscsi_stats->tcp_tx_segments);
1209 host_stats->tcptx_bytes = le64_to_cpu(ql_iscsi_stats->tcp_tx_bytes);
1210 host_stats->tcprx_segments =
1211 le64_to_cpu(ql_iscsi_stats->tcp_rx_segments);
1212 host_stats->tcprx_byte = le64_to_cpu(ql_iscsi_stats->tcp_rx_byte);
1213 host_stats->tcp_duplicate_ack_retx =
1214 le64_to_cpu(ql_iscsi_stats->tcp_duplicate_ack_retx);
1215 host_stats->tcp_retx_timer_expired =
1216 le64_to_cpu(ql_iscsi_stats->tcp_retx_timer_expired);
1217 host_stats->tcprx_duplicate_ack =
1218 le64_to_cpu(ql_iscsi_stats->tcp_rx_duplicate_ack);
1219 host_stats->tcprx_pure_ackr =
1220 le64_to_cpu(ql_iscsi_stats->tcp_rx_pure_ackr);
1221 host_stats->tcptx_delayed_ack =
1222 le64_to_cpu(ql_iscsi_stats->tcp_tx_delayed_ack);
1223 host_stats->tcptx_pure_ack =
1224 le64_to_cpu(ql_iscsi_stats->tcp_tx_pure_ack);
1225 host_stats->tcprx_segment_error =
1226 le64_to_cpu(ql_iscsi_stats->tcp_rx_segment_error);
1227 host_stats->tcprx_segment_outoforder =
1228 le64_to_cpu(ql_iscsi_stats->tcp_rx_segment_outoforder);
1229 host_stats->tcprx_window_probe =
1230 le64_to_cpu(ql_iscsi_stats->tcp_rx_window_probe);
1231 host_stats->tcprx_window_update =
1232 le64_to_cpu(ql_iscsi_stats->tcp_rx_window_update);
1233 host_stats->tcptx_window_probe_persist =
1234 le64_to_cpu(ql_iscsi_stats->tcp_tx_window_probe_persist);
1235 host_stats->ecc_error_correction =
1236 le64_to_cpu(ql_iscsi_stats->ecc_error_correction);
1237 host_stats->iscsi_pdu_tx = le64_to_cpu(ql_iscsi_stats->iscsi_pdu_tx);
1238 host_stats->iscsi_data_bytes_tx =
1239 le64_to_cpu(ql_iscsi_stats->iscsi_data_bytes_tx);
1240 host_stats->iscsi_pdu_rx = le64_to_cpu(ql_iscsi_stats->iscsi_pdu_rx);
1241 host_stats->iscsi_data_bytes_rx =
1242 le64_to_cpu(ql_iscsi_stats->iscsi_data_bytes_rx);
1243 host_stats->iscsi_io_completed =
1244 le64_to_cpu(ql_iscsi_stats->iscsi_io_completed);
1245 host_stats->iscsi_unexpected_io_rx =
1246 le64_to_cpu(ql_iscsi_stats->iscsi_unexpected_io_rx);
1247 host_stats->iscsi_format_error =
1248 le64_to_cpu(ql_iscsi_stats->iscsi_format_error);
1249 host_stats->iscsi_hdr_digest_error =
1250 le64_to_cpu(ql_iscsi_stats->iscsi_hdr_digest_error);
1251 host_stats->iscsi_data_digest_error =
1252 le64_to_cpu(ql_iscsi_stats->iscsi_data_digest_error);
1253 host_stats->iscsi_sequence_error =
1254 le64_to_cpu(ql_iscsi_stats->iscsi_sequence_error);
1255 exit_host_stats:
1256 if (ql_iscsi_stats)
1257 dma_free_coherent(&ha->pdev->dev, stats_size,
1258 ql_iscsi_stats, iscsi_stats_dma);
1259
1260 ql4_printk(KERN_INFO, ha, "%s: Get host stats done\n",
1261 __func__);
1262 return ret;
1263 }
1264
qla4xxx_get_iface_param(struct iscsi_iface * iface,enum iscsi_param_type param_type,int param,char * buf)1265 static int qla4xxx_get_iface_param(struct iscsi_iface *iface,
1266 enum iscsi_param_type param_type,
1267 int param, char *buf)
1268 {
1269 struct Scsi_Host *shost = iscsi_iface_to_shost(iface);
1270 struct scsi_qla_host *ha = to_qla_host(shost);
1271 int ival;
1272 char *pval = NULL;
1273 int len = -ENOSYS;
1274
1275 if (param_type == ISCSI_NET_PARAM) {
1276 switch (param) {
1277 case ISCSI_NET_PARAM_IPV4_ADDR:
1278 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address);
1279 break;
1280 case ISCSI_NET_PARAM_IPV4_SUBNET:
1281 len = sprintf(buf, "%pI4\n",
1282 &ha->ip_config.subnet_mask);
1283 break;
1284 case ISCSI_NET_PARAM_IPV4_GW:
1285 len = sprintf(buf, "%pI4\n", &ha->ip_config.gateway);
1286 break;
1287 case ISCSI_NET_PARAM_IFACE_ENABLE:
1288 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1289 OP_STATE(ha->ip_config.ipv4_options,
1290 IPOPT_IPV4_PROTOCOL_ENABLE, pval);
1291 } else {
1292 OP_STATE(ha->ip_config.ipv6_options,
1293 IPV6_OPT_IPV6_PROTOCOL_ENABLE, pval);
1294 }
1295
1296 len = sprintf(buf, "%s\n", pval);
1297 break;
1298 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
1299 len = sprintf(buf, "%s\n",
1300 (ha->ip_config.tcp_options &
1301 TCPOPT_DHCP_ENABLE) ?
1302 "dhcp" : "static");
1303 break;
1304 case ISCSI_NET_PARAM_IPV6_ADDR:
1305 if (iface->iface_num == 0)
1306 len = sprintf(buf, "%pI6\n",
1307 &ha->ip_config.ipv6_addr0);
1308 if (iface->iface_num == 1)
1309 len = sprintf(buf, "%pI6\n",
1310 &ha->ip_config.ipv6_addr1);
1311 break;
1312 case ISCSI_NET_PARAM_IPV6_LINKLOCAL:
1313 len = sprintf(buf, "%pI6\n",
1314 &ha->ip_config.ipv6_link_local_addr);
1315 break;
1316 case ISCSI_NET_PARAM_IPV6_ROUTER:
1317 len = sprintf(buf, "%pI6\n",
1318 &ha->ip_config.ipv6_default_router_addr);
1319 break;
1320 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG:
1321 pval = (ha->ip_config.ipv6_addl_options &
1322 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE) ?
1323 "nd" : "static";
1324
1325 len = sprintf(buf, "%s\n", pval);
1326 break;
1327 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG:
1328 pval = (ha->ip_config.ipv6_addl_options &
1329 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR) ?
1330 "auto" : "static";
1331
1332 len = sprintf(buf, "%s\n", pval);
1333 break;
1334 case ISCSI_NET_PARAM_VLAN_ID:
1335 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1336 ival = ha->ip_config.ipv4_vlan_tag &
1337 ISCSI_MAX_VLAN_ID;
1338 else
1339 ival = ha->ip_config.ipv6_vlan_tag &
1340 ISCSI_MAX_VLAN_ID;
1341
1342 len = sprintf(buf, "%d\n", ival);
1343 break;
1344 case ISCSI_NET_PARAM_VLAN_PRIORITY:
1345 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1346 ival = (ha->ip_config.ipv4_vlan_tag >> 13) &
1347 ISCSI_MAX_VLAN_PRIORITY;
1348 else
1349 ival = (ha->ip_config.ipv6_vlan_tag >> 13) &
1350 ISCSI_MAX_VLAN_PRIORITY;
1351
1352 len = sprintf(buf, "%d\n", ival);
1353 break;
1354 case ISCSI_NET_PARAM_VLAN_ENABLED:
1355 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1356 OP_STATE(ha->ip_config.ipv4_options,
1357 IPOPT_VLAN_TAGGING_ENABLE, pval);
1358 } else {
1359 OP_STATE(ha->ip_config.ipv6_options,
1360 IPV6_OPT_VLAN_TAGGING_ENABLE, pval);
1361 }
1362 len = sprintf(buf, "%s\n", pval);
1363 break;
1364 case ISCSI_NET_PARAM_MTU:
1365 len = sprintf(buf, "%d\n", ha->ip_config.eth_mtu_size);
1366 break;
1367 case ISCSI_NET_PARAM_PORT:
1368 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1369 len = sprintf(buf, "%d\n",
1370 ha->ip_config.ipv4_port);
1371 else
1372 len = sprintf(buf, "%d\n",
1373 ha->ip_config.ipv6_port);
1374 break;
1375 case ISCSI_NET_PARAM_IPADDR_STATE:
1376 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1377 pval = iscsi_get_ipaddress_state_name(
1378 ha->ip_config.ipv4_addr_state);
1379 } else {
1380 if (iface->iface_num == 0)
1381 pval = iscsi_get_ipaddress_state_name(
1382 ha->ip_config.ipv6_addr0_state);
1383 else if (iface->iface_num == 1)
1384 pval = iscsi_get_ipaddress_state_name(
1385 ha->ip_config.ipv6_addr1_state);
1386 }
1387
1388 len = sprintf(buf, "%s\n", pval);
1389 break;
1390 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_STATE:
1391 pval = iscsi_get_ipaddress_state_name(
1392 ha->ip_config.ipv6_link_local_state);
1393 len = sprintf(buf, "%s\n", pval);
1394 break;
1395 case ISCSI_NET_PARAM_IPV6_ROUTER_STATE:
1396 pval = iscsi_get_router_state_name(
1397 ha->ip_config.ipv6_default_router_state);
1398 len = sprintf(buf, "%s\n", pval);
1399 break;
1400 case ISCSI_NET_PARAM_DELAYED_ACK_EN:
1401 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1402 OP_STATE(~ha->ip_config.tcp_options,
1403 TCPOPT_DELAYED_ACK_DISABLE, pval);
1404 } else {
1405 OP_STATE(~ha->ip_config.ipv6_tcp_options,
1406 IPV6_TCPOPT_DELAYED_ACK_DISABLE, pval);
1407 }
1408 len = sprintf(buf, "%s\n", pval);
1409 break;
1410 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE:
1411 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1412 OP_STATE(~ha->ip_config.tcp_options,
1413 TCPOPT_NAGLE_ALGO_DISABLE, pval);
1414 } else {
1415 OP_STATE(~ha->ip_config.ipv6_tcp_options,
1416 IPV6_TCPOPT_NAGLE_ALGO_DISABLE, pval);
1417 }
1418 len = sprintf(buf, "%s\n", pval);
1419 break;
1420 case ISCSI_NET_PARAM_TCP_WSF_DISABLE:
1421 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1422 OP_STATE(~ha->ip_config.tcp_options,
1423 TCPOPT_WINDOW_SCALE_DISABLE, pval);
1424 } else {
1425 OP_STATE(~ha->ip_config.ipv6_tcp_options,
1426 IPV6_TCPOPT_WINDOW_SCALE_DISABLE,
1427 pval);
1428 }
1429 len = sprintf(buf, "%s\n", pval);
1430 break;
1431 case ISCSI_NET_PARAM_TCP_WSF:
1432 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1433 len = sprintf(buf, "%d\n",
1434 ha->ip_config.tcp_wsf);
1435 else
1436 len = sprintf(buf, "%d\n",
1437 ha->ip_config.ipv6_tcp_wsf);
1438 break;
1439 case ISCSI_NET_PARAM_TCP_TIMER_SCALE:
1440 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1441 ival = (ha->ip_config.tcp_options &
1442 TCPOPT_TIMER_SCALE) >> 1;
1443 else
1444 ival = (ha->ip_config.ipv6_tcp_options &
1445 IPV6_TCPOPT_TIMER_SCALE) >> 1;
1446
1447 len = sprintf(buf, "%d\n", ival);
1448 break;
1449 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN:
1450 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1451 OP_STATE(ha->ip_config.tcp_options,
1452 TCPOPT_TIMESTAMP_ENABLE, pval);
1453 } else {
1454 OP_STATE(ha->ip_config.ipv6_tcp_options,
1455 IPV6_TCPOPT_TIMESTAMP_EN, pval);
1456 }
1457 len = sprintf(buf, "%s\n", pval);
1458 break;
1459 case ISCSI_NET_PARAM_CACHE_ID:
1460 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1461 len = sprintf(buf, "%d\n",
1462 ha->ip_config.ipv4_cache_id);
1463 else
1464 len = sprintf(buf, "%d\n",
1465 ha->ip_config.ipv6_cache_id);
1466 break;
1467 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN:
1468 OP_STATE(ha->ip_config.tcp_options,
1469 TCPOPT_DNS_SERVER_IP_EN, pval);
1470
1471 len = sprintf(buf, "%s\n", pval);
1472 break;
1473 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN:
1474 OP_STATE(ha->ip_config.tcp_options,
1475 TCPOPT_SLP_DA_INFO_EN, pval);
1476
1477 len = sprintf(buf, "%s\n", pval);
1478 break;
1479 case ISCSI_NET_PARAM_IPV4_TOS_EN:
1480 OP_STATE(ha->ip_config.ipv4_options,
1481 IPOPT_IPV4_TOS_EN, pval);
1482
1483 len = sprintf(buf, "%s\n", pval);
1484 break;
1485 case ISCSI_NET_PARAM_IPV4_TOS:
1486 len = sprintf(buf, "%d\n", ha->ip_config.ipv4_tos);
1487 break;
1488 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN:
1489 OP_STATE(ha->ip_config.ipv4_options,
1490 IPOPT_GRAT_ARP_EN, pval);
1491
1492 len = sprintf(buf, "%s\n", pval);
1493 break;
1494 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN:
1495 OP_STATE(ha->ip_config.ipv4_options, IPOPT_ALT_CID_EN,
1496 pval);
1497
1498 len = sprintf(buf, "%s\n", pval);
1499 break;
1500 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID:
1501 pval = (ha->ip_config.ipv4_alt_cid_len) ?
1502 (char *)ha->ip_config.ipv4_alt_cid : "";
1503
1504 len = sprintf(buf, "%s\n", pval);
1505 break;
1506 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN:
1507 OP_STATE(ha->ip_config.ipv4_options,
1508 IPOPT_REQ_VID_EN, pval);
1509
1510 len = sprintf(buf, "%s\n", pval);
1511 break;
1512 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN:
1513 OP_STATE(ha->ip_config.ipv4_options,
1514 IPOPT_USE_VID_EN, pval);
1515
1516 len = sprintf(buf, "%s\n", pval);
1517 break;
1518 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID:
1519 pval = (ha->ip_config.ipv4_vid_len) ?
1520 (char *)ha->ip_config.ipv4_vid : "";
1521
1522 len = sprintf(buf, "%s\n", pval);
1523 break;
1524 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN:
1525 OP_STATE(ha->ip_config.ipv4_options,
1526 IPOPT_LEARN_IQN_EN, pval);
1527
1528 len = sprintf(buf, "%s\n", pval);
1529 break;
1530 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE:
1531 OP_STATE(~ha->ip_config.ipv4_options,
1532 IPOPT_FRAGMENTATION_DISABLE, pval);
1533
1534 len = sprintf(buf, "%s\n", pval);
1535 break;
1536 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN:
1537 OP_STATE(ha->ip_config.ipv4_options,
1538 IPOPT_IN_FORWARD_EN, pval);
1539
1540 len = sprintf(buf, "%s\n", pval);
1541 break;
1542 case ISCSI_NET_PARAM_REDIRECT_EN:
1543 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1544 OP_STATE(ha->ip_config.ipv4_options,
1545 IPOPT_ARP_REDIRECT_EN, pval);
1546 } else {
1547 OP_STATE(ha->ip_config.ipv6_options,
1548 IPV6_OPT_REDIRECT_EN, pval);
1549 }
1550 len = sprintf(buf, "%s\n", pval);
1551 break;
1552 case ISCSI_NET_PARAM_IPV4_TTL:
1553 len = sprintf(buf, "%d\n", ha->ip_config.ipv4_ttl);
1554 break;
1555 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN:
1556 OP_STATE(ha->ip_config.ipv6_options,
1557 IPV6_OPT_GRAT_NEIGHBOR_ADV_EN, pval);
1558
1559 len = sprintf(buf, "%s\n", pval);
1560 break;
1561 case ISCSI_NET_PARAM_IPV6_MLD_EN:
1562 OP_STATE(ha->ip_config.ipv6_addl_options,
1563 IPV6_ADDOPT_MLD_EN, pval);
1564
1565 len = sprintf(buf, "%s\n", pval);
1566 break;
1567 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL:
1568 len = sprintf(buf, "%u\n", ha->ip_config.ipv6_flow_lbl);
1569 break;
1570 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS:
1571 len = sprintf(buf, "%d\n",
1572 ha->ip_config.ipv6_traffic_class);
1573 break;
1574 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT:
1575 len = sprintf(buf, "%d\n",
1576 ha->ip_config.ipv6_hop_limit);
1577 break;
1578 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO:
1579 len = sprintf(buf, "%d\n",
1580 ha->ip_config.ipv6_nd_reach_time);
1581 break;
1582 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME:
1583 len = sprintf(buf, "%d\n",
1584 ha->ip_config.ipv6_nd_rexmit_timer);
1585 break;
1586 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO:
1587 len = sprintf(buf, "%d\n",
1588 ha->ip_config.ipv6_nd_stale_timeout);
1589 break;
1590 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT:
1591 len = sprintf(buf, "%d\n",
1592 ha->ip_config.ipv6_dup_addr_detect_count);
1593 break;
1594 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU:
1595 len = sprintf(buf, "%d\n",
1596 ha->ip_config.ipv6_gw_advrt_mtu);
1597 break;
1598 default:
1599 len = -ENOSYS;
1600 }
1601 } else if (param_type == ISCSI_IFACE_PARAM) {
1602 switch (param) {
1603 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO:
1604 len = sprintf(buf, "%d\n", ha->ip_config.def_timeout);
1605 break;
1606 case ISCSI_IFACE_PARAM_HDRDGST_EN:
1607 OP_STATE(ha->ip_config.iscsi_options,
1608 ISCSIOPTS_HEADER_DIGEST_EN, pval);
1609
1610 len = sprintf(buf, "%s\n", pval);
1611 break;
1612 case ISCSI_IFACE_PARAM_DATADGST_EN:
1613 OP_STATE(ha->ip_config.iscsi_options,
1614 ISCSIOPTS_DATA_DIGEST_EN, pval);
1615
1616 len = sprintf(buf, "%s\n", pval);
1617 break;
1618 case ISCSI_IFACE_PARAM_IMM_DATA_EN:
1619 OP_STATE(ha->ip_config.iscsi_options,
1620 ISCSIOPTS_IMMEDIATE_DATA_EN, pval);
1621
1622 len = sprintf(buf, "%s\n", pval);
1623 break;
1624 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN:
1625 OP_STATE(ha->ip_config.iscsi_options,
1626 ISCSIOPTS_INITIAL_R2T_EN, pval);
1627
1628 len = sprintf(buf, "%s\n", pval);
1629 break;
1630 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN:
1631 OP_STATE(ha->ip_config.iscsi_options,
1632 ISCSIOPTS_DATA_SEQ_INORDER_EN, pval);
1633
1634 len = sprintf(buf, "%s\n", pval);
1635 break;
1636 case ISCSI_IFACE_PARAM_PDU_INORDER_EN:
1637 OP_STATE(ha->ip_config.iscsi_options,
1638 ISCSIOPTS_DATA_PDU_INORDER_EN, pval);
1639
1640 len = sprintf(buf, "%s\n", pval);
1641 break;
1642 case ISCSI_IFACE_PARAM_ERL:
1643 len = sprintf(buf, "%d\n",
1644 (ha->ip_config.iscsi_options &
1645 ISCSIOPTS_ERL));
1646 break;
1647 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH:
1648 len = sprintf(buf, "%u\n",
1649 ha->ip_config.iscsi_max_pdu_size *
1650 BYTE_UNITS);
1651 break;
1652 case ISCSI_IFACE_PARAM_FIRST_BURST:
1653 len = sprintf(buf, "%u\n",
1654 ha->ip_config.iscsi_first_burst_len *
1655 BYTE_UNITS);
1656 break;
1657 case ISCSI_IFACE_PARAM_MAX_R2T:
1658 len = sprintf(buf, "%d\n",
1659 ha->ip_config.iscsi_max_outstnd_r2t);
1660 break;
1661 case ISCSI_IFACE_PARAM_MAX_BURST:
1662 len = sprintf(buf, "%u\n",
1663 ha->ip_config.iscsi_max_burst_len *
1664 BYTE_UNITS);
1665 break;
1666 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN:
1667 OP_STATE(ha->ip_config.iscsi_options,
1668 ISCSIOPTS_CHAP_AUTH_EN, pval);
1669
1670 len = sprintf(buf, "%s\n", pval);
1671 break;
1672 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN:
1673 OP_STATE(ha->ip_config.iscsi_options,
1674 ISCSIOPTS_BIDI_CHAP_EN, pval);
1675
1676 len = sprintf(buf, "%s\n", pval);
1677 break;
1678 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL:
1679 OP_STATE(ha->ip_config.iscsi_options,
1680 ISCSIOPTS_DISCOVERY_AUTH_EN, pval);
1681
1682 len = sprintf(buf, "%s\n", pval);
1683 break;
1684 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN:
1685 OP_STATE(ha->ip_config.iscsi_options,
1686 ISCSIOPTS_DISCOVERY_LOGOUT_EN, pval);
1687
1688 len = sprintf(buf, "%s\n", pval);
1689 break;
1690 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN:
1691 OP_STATE(ha->ip_config.iscsi_options,
1692 ISCSIOPTS_STRICT_LOGIN_COMP_EN, pval);
1693
1694 len = sprintf(buf, "%s\n", pval);
1695 break;
1696 case ISCSI_IFACE_PARAM_INITIATOR_NAME:
1697 len = sprintf(buf, "%s\n", ha->ip_config.iscsi_name);
1698 break;
1699 default:
1700 len = -ENOSYS;
1701 }
1702 }
1703
1704 return len;
1705 }
1706
1707 static struct iscsi_endpoint *
qla4xxx_ep_connect(struct Scsi_Host * shost,struct sockaddr * dst_addr,int non_blocking)1708 qla4xxx_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr,
1709 int non_blocking)
1710 {
1711 int ret;
1712 struct iscsi_endpoint *ep;
1713 struct qla_endpoint *qla_ep;
1714 struct scsi_qla_host *ha;
1715 struct sockaddr_in *addr;
1716 struct sockaddr_in6 *addr6;
1717
1718 if (!shost) {
1719 ret = -ENXIO;
1720 pr_err("%s: shost is NULL\n", __func__);
1721 return ERR_PTR(ret);
1722 }
1723
1724 ha = iscsi_host_priv(shost);
1725 ep = iscsi_create_endpoint(sizeof(struct qla_endpoint));
1726 if (!ep) {
1727 ret = -ENOMEM;
1728 return ERR_PTR(ret);
1729 }
1730
1731 qla_ep = ep->dd_data;
1732 memset(qla_ep, 0, sizeof(struct qla_endpoint));
1733 if (dst_addr->sa_family == AF_INET) {
1734 memcpy(&qla_ep->dst_addr, dst_addr, sizeof(struct sockaddr_in));
1735 addr = (struct sockaddr_in *)&qla_ep->dst_addr;
1736 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI4\n", __func__,
1737 (char *)&addr->sin_addr));
1738 } else if (dst_addr->sa_family == AF_INET6) {
1739 memcpy(&qla_ep->dst_addr, dst_addr,
1740 sizeof(struct sockaddr_in6));
1741 addr6 = (struct sockaddr_in6 *)&qla_ep->dst_addr;
1742 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI6\n", __func__,
1743 (char *)&addr6->sin6_addr));
1744 } else {
1745 ql4_printk(KERN_WARNING, ha, "%s: Invalid endpoint\n",
1746 __func__);
1747 }
1748
1749 qla_ep->host = shost;
1750
1751 return ep;
1752 }
1753
qla4xxx_ep_poll(struct iscsi_endpoint * ep,int timeout_ms)1754 static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms)
1755 {
1756 struct qla_endpoint *qla_ep;
1757 struct scsi_qla_host *ha;
1758 int ret = 0;
1759
1760 qla_ep = ep->dd_data;
1761 ha = to_qla_host(qla_ep->host);
1762 DEBUG2(pr_info_ratelimited("%s: host: %ld\n", __func__, ha->host_no));
1763
1764 if (adapter_up(ha) && !test_bit(AF_BUILD_DDB_LIST, &ha->flags))
1765 ret = 1;
1766
1767 return ret;
1768 }
1769
qla4xxx_ep_disconnect(struct iscsi_endpoint * ep)1770 static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep)
1771 {
1772 struct qla_endpoint *qla_ep;
1773 struct scsi_qla_host *ha;
1774
1775 qla_ep = ep->dd_data;
1776 ha = to_qla_host(qla_ep->host);
1777 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__,
1778 ha->host_no));
1779 iscsi_destroy_endpoint(ep);
1780 }
1781
qla4xxx_get_ep_param(struct iscsi_endpoint * ep,enum iscsi_param param,char * buf)1782 static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep,
1783 enum iscsi_param param,
1784 char *buf)
1785 {
1786 struct qla_endpoint *qla_ep = ep->dd_data;
1787 struct sockaddr *dst_addr;
1788 struct scsi_qla_host *ha;
1789
1790 if (!qla_ep)
1791 return -ENOTCONN;
1792
1793 ha = to_qla_host(qla_ep->host);
1794 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__,
1795 ha->host_no));
1796
1797 switch (param) {
1798 case ISCSI_PARAM_CONN_PORT:
1799 case ISCSI_PARAM_CONN_ADDRESS:
1800 dst_addr = (struct sockaddr *)&qla_ep->dst_addr;
1801 if (!dst_addr)
1802 return -ENOTCONN;
1803
1804 return iscsi_conn_get_addr_param((struct sockaddr_storage *)
1805 &qla_ep->dst_addr, param, buf);
1806 default:
1807 return -ENOSYS;
1808 }
1809 }
1810
qla4xxx_conn_get_stats(struct iscsi_cls_conn * cls_conn,struct iscsi_stats * stats)1811 static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn,
1812 struct iscsi_stats *stats)
1813 {
1814 struct iscsi_session *sess;
1815 struct iscsi_cls_session *cls_sess;
1816 struct ddb_entry *ddb_entry;
1817 struct scsi_qla_host *ha;
1818 struct ql_iscsi_stats *ql_iscsi_stats;
1819 int stats_size;
1820 int ret;
1821 dma_addr_t iscsi_stats_dma;
1822
1823 cls_sess = iscsi_conn_to_session(cls_conn);
1824 sess = cls_sess->dd_data;
1825 ddb_entry = sess->dd_data;
1826 ha = ddb_entry->ha;
1827
1828 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__,
1829 ha->host_no));
1830 stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats));
1831 /* Allocate memory */
1832 ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size,
1833 &iscsi_stats_dma, GFP_KERNEL);
1834 if (!ql_iscsi_stats) {
1835 ql4_printk(KERN_ERR, ha,
1836 "Unable to allocate memory for iscsi stats\n");
1837 goto exit_get_stats;
1838 }
1839
1840 ret = qla4xxx_get_mgmt_data(ha, ddb_entry->fw_ddb_index, stats_size,
1841 iscsi_stats_dma);
1842 if (ret != QLA_SUCCESS) {
1843 ql4_printk(KERN_ERR, ha,
1844 "Unable to retrieve iscsi stats\n");
1845 goto free_stats;
1846 }
1847
1848 /* octets */
1849 stats->txdata_octets = le64_to_cpu(ql_iscsi_stats->tx_data_octets);
1850 stats->rxdata_octets = le64_to_cpu(ql_iscsi_stats->rx_data_octets);
1851 /* xmit pdus */
1852 stats->noptx_pdus = le32_to_cpu(ql_iscsi_stats->tx_nopout_pdus);
1853 stats->scsicmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_cmd_pdus);
1854 stats->tmfcmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_tmf_cmd_pdus);
1855 stats->login_pdus = le32_to_cpu(ql_iscsi_stats->tx_login_cmd_pdus);
1856 stats->text_pdus = le32_to_cpu(ql_iscsi_stats->tx_text_cmd_pdus);
1857 stats->dataout_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_write_pdus);
1858 stats->logout_pdus = le32_to_cpu(ql_iscsi_stats->tx_logout_cmd_pdus);
1859 stats->snack_pdus = le32_to_cpu(ql_iscsi_stats->tx_snack_req_pdus);
1860 /* recv pdus */
1861 stats->noprx_pdus = le32_to_cpu(ql_iscsi_stats->rx_nopin_pdus);
1862 stats->scsirsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_resp_pdus);
1863 stats->tmfrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_tmf_resp_pdus);
1864 stats->textrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_text_resp_pdus);
1865 stats->datain_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_read_pdus);
1866 stats->logoutrsp_pdus =
1867 le32_to_cpu(ql_iscsi_stats->rx_logout_resp_pdus);
1868 stats->r2t_pdus = le32_to_cpu(ql_iscsi_stats->rx_r2t_pdus);
1869 stats->async_pdus = le32_to_cpu(ql_iscsi_stats->rx_async_pdus);
1870 stats->rjt_pdus = le32_to_cpu(ql_iscsi_stats->rx_reject_pdus);
1871
1872 free_stats:
1873 dma_free_coherent(&ha->pdev->dev, stats_size, ql_iscsi_stats,
1874 iscsi_stats_dma);
1875 exit_get_stats:
1876 return;
1877 }
1878
qla4xxx_eh_cmd_timed_out(struct scsi_cmnd * sc)1879 static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc)
1880 {
1881 struct iscsi_cls_session *session;
1882 unsigned long flags;
1883 enum blk_eh_timer_return ret = BLK_EH_DONE;
1884
1885 session = starget_to_session(scsi_target(sc->device));
1886
1887 spin_lock_irqsave(&session->lock, flags);
1888 if (session->state == ISCSI_SESSION_FAILED)
1889 ret = BLK_EH_RESET_TIMER;
1890 spin_unlock_irqrestore(&session->lock, flags);
1891
1892 return ret;
1893 }
1894
qla4xxx_set_port_speed(struct Scsi_Host * shost)1895 static void qla4xxx_set_port_speed(struct Scsi_Host *shost)
1896 {
1897 struct scsi_qla_host *ha = to_qla_host(shost);
1898 struct iscsi_cls_host *ihost = shost->shost_data;
1899 uint32_t speed = ISCSI_PORT_SPEED_UNKNOWN;
1900
1901 qla4xxx_get_firmware_state(ha);
1902
1903 switch (ha->addl_fw_state & 0x0F00) {
1904 case FW_ADDSTATE_LINK_SPEED_10MBPS:
1905 speed = ISCSI_PORT_SPEED_10MBPS;
1906 break;
1907 case FW_ADDSTATE_LINK_SPEED_100MBPS:
1908 speed = ISCSI_PORT_SPEED_100MBPS;
1909 break;
1910 case FW_ADDSTATE_LINK_SPEED_1GBPS:
1911 speed = ISCSI_PORT_SPEED_1GBPS;
1912 break;
1913 case FW_ADDSTATE_LINK_SPEED_10GBPS:
1914 speed = ISCSI_PORT_SPEED_10GBPS;
1915 break;
1916 }
1917 ihost->port_speed = speed;
1918 }
1919
qla4xxx_set_port_state(struct Scsi_Host * shost)1920 static void qla4xxx_set_port_state(struct Scsi_Host *shost)
1921 {
1922 struct scsi_qla_host *ha = to_qla_host(shost);
1923 struct iscsi_cls_host *ihost = shost->shost_data;
1924 uint32_t state = ISCSI_PORT_STATE_DOWN;
1925
1926 if (test_bit(AF_LINK_UP, &ha->flags))
1927 state = ISCSI_PORT_STATE_UP;
1928
1929 ihost->port_state = state;
1930 }
1931
qla4xxx_host_get_param(struct Scsi_Host * shost,enum iscsi_host_param param,char * buf)1932 static int qla4xxx_host_get_param(struct Scsi_Host *shost,
1933 enum iscsi_host_param param, char *buf)
1934 {
1935 struct scsi_qla_host *ha = to_qla_host(shost);
1936 int len;
1937
1938 switch (param) {
1939 case ISCSI_HOST_PARAM_HWADDRESS:
1940 len = sysfs_format_mac(buf, ha->my_mac, MAC_ADDR_LEN);
1941 break;
1942 case ISCSI_HOST_PARAM_IPADDRESS:
1943 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address);
1944 break;
1945 case ISCSI_HOST_PARAM_INITIATOR_NAME:
1946 len = sprintf(buf, "%s\n", ha->name_string);
1947 break;
1948 case ISCSI_HOST_PARAM_PORT_STATE:
1949 qla4xxx_set_port_state(shost);
1950 len = sprintf(buf, "%s\n", iscsi_get_port_state_name(shost));
1951 break;
1952 case ISCSI_HOST_PARAM_PORT_SPEED:
1953 qla4xxx_set_port_speed(shost);
1954 len = sprintf(buf, "%s\n", iscsi_get_port_speed_name(shost));
1955 break;
1956 default:
1957 return -ENOSYS;
1958 }
1959
1960 return len;
1961 }
1962
qla4xxx_create_ipv4_iface(struct scsi_qla_host * ha)1963 static void qla4xxx_create_ipv4_iface(struct scsi_qla_host *ha)
1964 {
1965 if (ha->iface_ipv4)
1966 return;
1967
1968 /* IPv4 */
1969 ha->iface_ipv4 = iscsi_create_iface(ha->host,
1970 &qla4xxx_iscsi_transport,
1971 ISCSI_IFACE_TYPE_IPV4, 0, 0);
1972 if (!ha->iface_ipv4)
1973 ql4_printk(KERN_ERR, ha, "Could not create IPv4 iSCSI "
1974 "iface0.\n");
1975 }
1976
qla4xxx_create_ipv6_iface(struct scsi_qla_host * ha)1977 static void qla4xxx_create_ipv6_iface(struct scsi_qla_host *ha)
1978 {
1979 if (!ha->iface_ipv6_0)
1980 /* IPv6 iface-0 */
1981 ha->iface_ipv6_0 = iscsi_create_iface(ha->host,
1982 &qla4xxx_iscsi_transport,
1983 ISCSI_IFACE_TYPE_IPV6, 0,
1984 0);
1985 if (!ha->iface_ipv6_0)
1986 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI "
1987 "iface0.\n");
1988
1989 if (!ha->iface_ipv6_1)
1990 /* IPv6 iface-1 */
1991 ha->iface_ipv6_1 = iscsi_create_iface(ha->host,
1992 &qla4xxx_iscsi_transport,
1993 ISCSI_IFACE_TYPE_IPV6, 1,
1994 0);
1995 if (!ha->iface_ipv6_1)
1996 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI "
1997 "iface1.\n");
1998 }
1999
qla4xxx_create_ifaces(struct scsi_qla_host * ha)2000 static void qla4xxx_create_ifaces(struct scsi_qla_host *ha)
2001 {
2002 if (ha->ip_config.ipv4_options & IPOPT_IPV4_PROTOCOL_ENABLE)
2003 qla4xxx_create_ipv4_iface(ha);
2004
2005 if (ha->ip_config.ipv6_options & IPV6_OPT_IPV6_PROTOCOL_ENABLE)
2006 qla4xxx_create_ipv6_iface(ha);
2007 }
2008
qla4xxx_destroy_ipv4_iface(struct scsi_qla_host * ha)2009 static void qla4xxx_destroy_ipv4_iface(struct scsi_qla_host *ha)
2010 {
2011 if (ha->iface_ipv4) {
2012 iscsi_destroy_iface(ha->iface_ipv4);
2013 ha->iface_ipv4 = NULL;
2014 }
2015 }
2016
qla4xxx_destroy_ipv6_iface(struct scsi_qla_host * ha)2017 static void qla4xxx_destroy_ipv6_iface(struct scsi_qla_host *ha)
2018 {
2019 if (ha->iface_ipv6_0) {
2020 iscsi_destroy_iface(ha->iface_ipv6_0);
2021 ha->iface_ipv6_0 = NULL;
2022 }
2023 if (ha->iface_ipv6_1) {
2024 iscsi_destroy_iface(ha->iface_ipv6_1);
2025 ha->iface_ipv6_1 = NULL;
2026 }
2027 }
2028
qla4xxx_destroy_ifaces(struct scsi_qla_host * ha)2029 static void qla4xxx_destroy_ifaces(struct scsi_qla_host *ha)
2030 {
2031 qla4xxx_destroy_ipv4_iface(ha);
2032 qla4xxx_destroy_ipv6_iface(ha);
2033 }
2034
qla4xxx_set_ipv6(struct scsi_qla_host * ha,struct iscsi_iface_param_info * iface_param,struct addr_ctrl_blk * init_fw_cb)2035 static void qla4xxx_set_ipv6(struct scsi_qla_host *ha,
2036 struct iscsi_iface_param_info *iface_param,
2037 struct addr_ctrl_blk *init_fw_cb)
2038 {
2039 /*
2040 * iface_num 0 is valid for IPv6 Addr, linklocal, router, autocfg.
2041 * iface_num 1 is valid only for IPv6 Addr.
2042 */
2043 switch (iface_param->param) {
2044 case ISCSI_NET_PARAM_IPV6_ADDR:
2045 if (iface_param->iface_num & 0x1)
2046 /* IPv6 Addr 1 */
2047 memcpy(init_fw_cb->ipv6_addr1, iface_param->value,
2048 sizeof(init_fw_cb->ipv6_addr1));
2049 else
2050 /* IPv6 Addr 0 */
2051 memcpy(init_fw_cb->ipv6_addr0, iface_param->value,
2052 sizeof(init_fw_cb->ipv6_addr0));
2053 break;
2054 case ISCSI_NET_PARAM_IPV6_LINKLOCAL:
2055 if (iface_param->iface_num & 0x1)
2056 break;
2057 memcpy(init_fw_cb->ipv6_if_id, &iface_param->value[8],
2058 sizeof(init_fw_cb->ipv6_if_id));
2059 break;
2060 case ISCSI_NET_PARAM_IPV6_ROUTER:
2061 if (iface_param->iface_num & 0x1)
2062 break;
2063 memcpy(init_fw_cb->ipv6_dflt_rtr_addr, iface_param->value,
2064 sizeof(init_fw_cb->ipv6_dflt_rtr_addr));
2065 break;
2066 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG:
2067 /* Autocfg applies to even interface */
2068 if (iface_param->iface_num & 0x1)
2069 break;
2070
2071 if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_DISABLE)
2072 init_fw_cb->ipv6_addtl_opts &=
2073 cpu_to_le16(
2074 ~IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE);
2075 else if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_ND_ENABLE)
2076 init_fw_cb->ipv6_addtl_opts |=
2077 cpu_to_le16(
2078 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE);
2079 else
2080 ql4_printk(KERN_ERR, ha,
2081 "Invalid autocfg setting for IPv6 addr\n");
2082 break;
2083 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG:
2084 /* Autocfg applies to even interface */
2085 if (iface_param->iface_num & 0x1)
2086 break;
2087
2088 if (iface_param->value[0] ==
2089 ISCSI_IPV6_LINKLOCAL_AUTOCFG_ENABLE)
2090 init_fw_cb->ipv6_addtl_opts |= cpu_to_le16(
2091 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR);
2092 else if (iface_param->value[0] ==
2093 ISCSI_IPV6_LINKLOCAL_AUTOCFG_DISABLE)
2094 init_fw_cb->ipv6_addtl_opts &= cpu_to_le16(
2095 ~IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR);
2096 else
2097 ql4_printk(KERN_ERR, ha,
2098 "Invalid autocfg setting for IPv6 linklocal addr\n");
2099 break;
2100 case ISCSI_NET_PARAM_IPV6_ROUTER_AUTOCFG:
2101 /* Autocfg applies to even interface */
2102 if (iface_param->iface_num & 0x1)
2103 break;
2104
2105 if (iface_param->value[0] == ISCSI_IPV6_ROUTER_AUTOCFG_ENABLE)
2106 memset(init_fw_cb->ipv6_dflt_rtr_addr, 0,
2107 sizeof(init_fw_cb->ipv6_dflt_rtr_addr));
2108 break;
2109 case ISCSI_NET_PARAM_IFACE_ENABLE:
2110 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) {
2111 init_fw_cb->ipv6_opts |=
2112 cpu_to_le16(IPV6_OPT_IPV6_PROTOCOL_ENABLE);
2113 qla4xxx_create_ipv6_iface(ha);
2114 } else {
2115 init_fw_cb->ipv6_opts &=
2116 cpu_to_le16(~IPV6_OPT_IPV6_PROTOCOL_ENABLE &
2117 0xFFFF);
2118 qla4xxx_destroy_ipv6_iface(ha);
2119 }
2120 break;
2121 case ISCSI_NET_PARAM_VLAN_TAG:
2122 if (iface_param->len != sizeof(init_fw_cb->ipv6_vlan_tag))
2123 break;
2124 init_fw_cb->ipv6_vlan_tag =
2125 cpu_to_be16(*(uint16_t *)iface_param->value);
2126 break;
2127 case ISCSI_NET_PARAM_VLAN_ENABLED:
2128 if (iface_param->value[0] == ISCSI_VLAN_ENABLE)
2129 init_fw_cb->ipv6_opts |=
2130 cpu_to_le16(IPV6_OPT_VLAN_TAGGING_ENABLE);
2131 else
2132 init_fw_cb->ipv6_opts &=
2133 cpu_to_le16(~IPV6_OPT_VLAN_TAGGING_ENABLE);
2134 break;
2135 case ISCSI_NET_PARAM_MTU:
2136 init_fw_cb->eth_mtu_size =
2137 cpu_to_le16(*(uint16_t *)iface_param->value);
2138 break;
2139 case ISCSI_NET_PARAM_PORT:
2140 /* Autocfg applies to even interface */
2141 if (iface_param->iface_num & 0x1)
2142 break;
2143
2144 init_fw_cb->ipv6_port =
2145 cpu_to_le16(*(uint16_t *)iface_param->value);
2146 break;
2147 case ISCSI_NET_PARAM_DELAYED_ACK_EN:
2148 if (iface_param->iface_num & 0x1)
2149 break;
2150 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2151 init_fw_cb->ipv6_tcp_opts |=
2152 cpu_to_le16(IPV6_TCPOPT_DELAYED_ACK_DISABLE);
2153 else
2154 init_fw_cb->ipv6_tcp_opts &=
2155 cpu_to_le16(~IPV6_TCPOPT_DELAYED_ACK_DISABLE &
2156 0xFFFF);
2157 break;
2158 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE:
2159 if (iface_param->iface_num & 0x1)
2160 break;
2161 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2162 init_fw_cb->ipv6_tcp_opts |=
2163 cpu_to_le16(IPV6_TCPOPT_NAGLE_ALGO_DISABLE);
2164 else
2165 init_fw_cb->ipv6_tcp_opts &=
2166 cpu_to_le16(~IPV6_TCPOPT_NAGLE_ALGO_DISABLE);
2167 break;
2168 case ISCSI_NET_PARAM_TCP_WSF_DISABLE:
2169 if (iface_param->iface_num & 0x1)
2170 break;
2171 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2172 init_fw_cb->ipv6_tcp_opts |=
2173 cpu_to_le16(IPV6_TCPOPT_WINDOW_SCALE_DISABLE);
2174 else
2175 init_fw_cb->ipv6_tcp_opts &=
2176 cpu_to_le16(~IPV6_TCPOPT_WINDOW_SCALE_DISABLE);
2177 break;
2178 case ISCSI_NET_PARAM_TCP_WSF:
2179 if (iface_param->iface_num & 0x1)
2180 break;
2181 init_fw_cb->ipv6_tcp_wsf = iface_param->value[0];
2182 break;
2183 case ISCSI_NET_PARAM_TCP_TIMER_SCALE:
2184 if (iface_param->iface_num & 0x1)
2185 break;
2186 init_fw_cb->ipv6_tcp_opts &=
2187 cpu_to_le16(~IPV6_TCPOPT_TIMER_SCALE);
2188 init_fw_cb->ipv6_tcp_opts |=
2189 cpu_to_le16((iface_param->value[0] << 1) &
2190 IPV6_TCPOPT_TIMER_SCALE);
2191 break;
2192 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN:
2193 if (iface_param->iface_num & 0x1)
2194 break;
2195 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2196 init_fw_cb->ipv6_tcp_opts |=
2197 cpu_to_le16(IPV6_TCPOPT_TIMESTAMP_EN);
2198 else
2199 init_fw_cb->ipv6_tcp_opts &=
2200 cpu_to_le16(~IPV6_TCPOPT_TIMESTAMP_EN);
2201 break;
2202 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN:
2203 if (iface_param->iface_num & 0x1)
2204 break;
2205 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2206 init_fw_cb->ipv6_opts |=
2207 cpu_to_le16(IPV6_OPT_GRAT_NEIGHBOR_ADV_EN);
2208 else
2209 init_fw_cb->ipv6_opts &=
2210 cpu_to_le16(~IPV6_OPT_GRAT_NEIGHBOR_ADV_EN);
2211 break;
2212 case ISCSI_NET_PARAM_REDIRECT_EN:
2213 if (iface_param->iface_num & 0x1)
2214 break;
2215 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2216 init_fw_cb->ipv6_opts |=
2217 cpu_to_le16(IPV6_OPT_REDIRECT_EN);
2218 else
2219 init_fw_cb->ipv6_opts &=
2220 cpu_to_le16(~IPV6_OPT_REDIRECT_EN);
2221 break;
2222 case ISCSI_NET_PARAM_IPV6_MLD_EN:
2223 if (iface_param->iface_num & 0x1)
2224 break;
2225 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2226 init_fw_cb->ipv6_addtl_opts |=
2227 cpu_to_le16(IPV6_ADDOPT_MLD_EN);
2228 else
2229 init_fw_cb->ipv6_addtl_opts &=
2230 cpu_to_le16(~IPV6_ADDOPT_MLD_EN);
2231 break;
2232 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL:
2233 if (iface_param->iface_num & 0x1)
2234 break;
2235 init_fw_cb->ipv6_flow_lbl =
2236 cpu_to_le16(*(uint16_t *)iface_param->value);
2237 break;
2238 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS:
2239 if (iface_param->iface_num & 0x1)
2240 break;
2241 init_fw_cb->ipv6_traffic_class = iface_param->value[0];
2242 break;
2243 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT:
2244 if (iface_param->iface_num & 0x1)
2245 break;
2246 init_fw_cb->ipv6_hop_limit = iface_param->value[0];
2247 break;
2248 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO:
2249 if (iface_param->iface_num & 0x1)
2250 break;
2251 init_fw_cb->ipv6_nd_reach_time =
2252 cpu_to_le32(*(uint32_t *)iface_param->value);
2253 break;
2254 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME:
2255 if (iface_param->iface_num & 0x1)
2256 break;
2257 init_fw_cb->ipv6_nd_rexmit_timer =
2258 cpu_to_le32(*(uint32_t *)iface_param->value);
2259 break;
2260 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO:
2261 if (iface_param->iface_num & 0x1)
2262 break;
2263 init_fw_cb->ipv6_nd_stale_timeout =
2264 cpu_to_le32(*(uint32_t *)iface_param->value);
2265 break;
2266 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT:
2267 if (iface_param->iface_num & 0x1)
2268 break;
2269 init_fw_cb->ipv6_dup_addr_detect_count = iface_param->value[0];
2270 break;
2271 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU:
2272 if (iface_param->iface_num & 0x1)
2273 break;
2274 init_fw_cb->ipv6_gw_advrt_mtu =
2275 cpu_to_le32(*(uint32_t *)iface_param->value);
2276 break;
2277 default:
2278 ql4_printk(KERN_ERR, ha, "Unknown IPv6 param = %d\n",
2279 iface_param->param);
2280 break;
2281 }
2282 }
2283
qla4xxx_set_ipv4(struct scsi_qla_host * ha,struct iscsi_iface_param_info * iface_param,struct addr_ctrl_blk * init_fw_cb)2284 static void qla4xxx_set_ipv4(struct scsi_qla_host *ha,
2285 struct iscsi_iface_param_info *iface_param,
2286 struct addr_ctrl_blk *init_fw_cb)
2287 {
2288 switch (iface_param->param) {
2289 case ISCSI_NET_PARAM_IPV4_ADDR:
2290 memcpy(init_fw_cb->ipv4_addr, iface_param->value,
2291 sizeof(init_fw_cb->ipv4_addr));
2292 break;
2293 case ISCSI_NET_PARAM_IPV4_SUBNET:
2294 memcpy(init_fw_cb->ipv4_subnet, iface_param->value,
2295 sizeof(init_fw_cb->ipv4_subnet));
2296 break;
2297 case ISCSI_NET_PARAM_IPV4_GW:
2298 memcpy(init_fw_cb->ipv4_gw_addr, iface_param->value,
2299 sizeof(init_fw_cb->ipv4_gw_addr));
2300 break;
2301 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
2302 if (iface_param->value[0] == ISCSI_BOOTPROTO_DHCP)
2303 init_fw_cb->ipv4_tcp_opts |=
2304 cpu_to_le16(TCPOPT_DHCP_ENABLE);
2305 else if (iface_param->value[0] == ISCSI_BOOTPROTO_STATIC)
2306 init_fw_cb->ipv4_tcp_opts &=
2307 cpu_to_le16(~TCPOPT_DHCP_ENABLE);
2308 else
2309 ql4_printk(KERN_ERR, ha, "Invalid IPv4 bootproto\n");
2310 break;
2311 case ISCSI_NET_PARAM_IFACE_ENABLE:
2312 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) {
2313 init_fw_cb->ipv4_ip_opts |=
2314 cpu_to_le16(IPOPT_IPV4_PROTOCOL_ENABLE);
2315 qla4xxx_create_ipv4_iface(ha);
2316 } else {
2317 init_fw_cb->ipv4_ip_opts &=
2318 cpu_to_le16(~IPOPT_IPV4_PROTOCOL_ENABLE &
2319 0xFFFF);
2320 qla4xxx_destroy_ipv4_iface(ha);
2321 }
2322 break;
2323 case ISCSI_NET_PARAM_VLAN_TAG:
2324 if (iface_param->len != sizeof(init_fw_cb->ipv4_vlan_tag))
2325 break;
2326 init_fw_cb->ipv4_vlan_tag =
2327 cpu_to_be16(*(uint16_t *)iface_param->value);
2328 break;
2329 case ISCSI_NET_PARAM_VLAN_ENABLED:
2330 if (iface_param->value[0] == ISCSI_VLAN_ENABLE)
2331 init_fw_cb->ipv4_ip_opts |=
2332 cpu_to_le16(IPOPT_VLAN_TAGGING_ENABLE);
2333 else
2334 init_fw_cb->ipv4_ip_opts &=
2335 cpu_to_le16(~IPOPT_VLAN_TAGGING_ENABLE);
2336 break;
2337 case ISCSI_NET_PARAM_MTU:
2338 init_fw_cb->eth_mtu_size =
2339 cpu_to_le16(*(uint16_t *)iface_param->value);
2340 break;
2341 case ISCSI_NET_PARAM_PORT:
2342 init_fw_cb->ipv4_port =
2343 cpu_to_le16(*(uint16_t *)iface_param->value);
2344 break;
2345 case ISCSI_NET_PARAM_DELAYED_ACK_EN:
2346 if (iface_param->iface_num & 0x1)
2347 break;
2348 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2349 init_fw_cb->ipv4_tcp_opts |=
2350 cpu_to_le16(TCPOPT_DELAYED_ACK_DISABLE);
2351 else
2352 init_fw_cb->ipv4_tcp_opts &=
2353 cpu_to_le16(~TCPOPT_DELAYED_ACK_DISABLE &
2354 0xFFFF);
2355 break;
2356 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE:
2357 if (iface_param->iface_num & 0x1)
2358 break;
2359 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2360 init_fw_cb->ipv4_tcp_opts |=
2361 cpu_to_le16(TCPOPT_NAGLE_ALGO_DISABLE);
2362 else
2363 init_fw_cb->ipv4_tcp_opts &=
2364 cpu_to_le16(~TCPOPT_NAGLE_ALGO_DISABLE);
2365 break;
2366 case ISCSI_NET_PARAM_TCP_WSF_DISABLE:
2367 if (iface_param->iface_num & 0x1)
2368 break;
2369 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2370 init_fw_cb->ipv4_tcp_opts |=
2371 cpu_to_le16(TCPOPT_WINDOW_SCALE_DISABLE);
2372 else
2373 init_fw_cb->ipv4_tcp_opts &=
2374 cpu_to_le16(~TCPOPT_WINDOW_SCALE_DISABLE);
2375 break;
2376 case ISCSI_NET_PARAM_TCP_WSF:
2377 if (iface_param->iface_num & 0x1)
2378 break;
2379 init_fw_cb->ipv4_tcp_wsf = iface_param->value[0];
2380 break;
2381 case ISCSI_NET_PARAM_TCP_TIMER_SCALE:
2382 if (iface_param->iface_num & 0x1)
2383 break;
2384 init_fw_cb->ipv4_tcp_opts &= cpu_to_le16(~TCPOPT_TIMER_SCALE);
2385 init_fw_cb->ipv4_tcp_opts |=
2386 cpu_to_le16((iface_param->value[0] << 1) &
2387 TCPOPT_TIMER_SCALE);
2388 break;
2389 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN:
2390 if (iface_param->iface_num & 0x1)
2391 break;
2392 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2393 init_fw_cb->ipv4_tcp_opts |=
2394 cpu_to_le16(TCPOPT_TIMESTAMP_ENABLE);
2395 else
2396 init_fw_cb->ipv4_tcp_opts &=
2397 cpu_to_le16(~TCPOPT_TIMESTAMP_ENABLE);
2398 break;
2399 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN:
2400 if (iface_param->iface_num & 0x1)
2401 break;
2402 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2403 init_fw_cb->ipv4_tcp_opts |=
2404 cpu_to_le16(TCPOPT_DNS_SERVER_IP_EN);
2405 else
2406 init_fw_cb->ipv4_tcp_opts &=
2407 cpu_to_le16(~TCPOPT_DNS_SERVER_IP_EN);
2408 break;
2409 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN:
2410 if (iface_param->iface_num & 0x1)
2411 break;
2412 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2413 init_fw_cb->ipv4_tcp_opts |=
2414 cpu_to_le16(TCPOPT_SLP_DA_INFO_EN);
2415 else
2416 init_fw_cb->ipv4_tcp_opts &=
2417 cpu_to_le16(~TCPOPT_SLP_DA_INFO_EN);
2418 break;
2419 case ISCSI_NET_PARAM_IPV4_TOS_EN:
2420 if (iface_param->iface_num & 0x1)
2421 break;
2422 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2423 init_fw_cb->ipv4_ip_opts |=
2424 cpu_to_le16(IPOPT_IPV4_TOS_EN);
2425 else
2426 init_fw_cb->ipv4_ip_opts &=
2427 cpu_to_le16(~IPOPT_IPV4_TOS_EN);
2428 break;
2429 case ISCSI_NET_PARAM_IPV4_TOS:
2430 if (iface_param->iface_num & 0x1)
2431 break;
2432 init_fw_cb->ipv4_tos = iface_param->value[0];
2433 break;
2434 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN:
2435 if (iface_param->iface_num & 0x1)
2436 break;
2437 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2438 init_fw_cb->ipv4_ip_opts |=
2439 cpu_to_le16(IPOPT_GRAT_ARP_EN);
2440 else
2441 init_fw_cb->ipv4_ip_opts &=
2442 cpu_to_le16(~IPOPT_GRAT_ARP_EN);
2443 break;
2444 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN:
2445 if (iface_param->iface_num & 0x1)
2446 break;
2447 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2448 init_fw_cb->ipv4_ip_opts |=
2449 cpu_to_le16(IPOPT_ALT_CID_EN);
2450 else
2451 init_fw_cb->ipv4_ip_opts &=
2452 cpu_to_le16(~IPOPT_ALT_CID_EN);
2453 break;
2454 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID:
2455 if (iface_param->iface_num & 0x1)
2456 break;
2457 memcpy(init_fw_cb->ipv4_dhcp_alt_cid, iface_param->value,
2458 (sizeof(init_fw_cb->ipv4_dhcp_alt_cid) - 1));
2459 init_fw_cb->ipv4_dhcp_alt_cid_len =
2460 strlen(init_fw_cb->ipv4_dhcp_alt_cid);
2461 break;
2462 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN:
2463 if (iface_param->iface_num & 0x1)
2464 break;
2465 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2466 init_fw_cb->ipv4_ip_opts |=
2467 cpu_to_le16(IPOPT_REQ_VID_EN);
2468 else
2469 init_fw_cb->ipv4_ip_opts &=
2470 cpu_to_le16(~IPOPT_REQ_VID_EN);
2471 break;
2472 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN:
2473 if (iface_param->iface_num & 0x1)
2474 break;
2475 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2476 init_fw_cb->ipv4_ip_opts |=
2477 cpu_to_le16(IPOPT_USE_VID_EN);
2478 else
2479 init_fw_cb->ipv4_ip_opts &=
2480 cpu_to_le16(~IPOPT_USE_VID_EN);
2481 break;
2482 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID:
2483 if (iface_param->iface_num & 0x1)
2484 break;
2485 memcpy(init_fw_cb->ipv4_dhcp_vid, iface_param->value,
2486 (sizeof(init_fw_cb->ipv4_dhcp_vid) - 1));
2487 init_fw_cb->ipv4_dhcp_vid_len =
2488 strlen(init_fw_cb->ipv4_dhcp_vid);
2489 break;
2490 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN:
2491 if (iface_param->iface_num & 0x1)
2492 break;
2493 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2494 init_fw_cb->ipv4_ip_opts |=
2495 cpu_to_le16(IPOPT_LEARN_IQN_EN);
2496 else
2497 init_fw_cb->ipv4_ip_opts &=
2498 cpu_to_le16(~IPOPT_LEARN_IQN_EN);
2499 break;
2500 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE:
2501 if (iface_param->iface_num & 0x1)
2502 break;
2503 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2504 init_fw_cb->ipv4_ip_opts |=
2505 cpu_to_le16(IPOPT_FRAGMENTATION_DISABLE);
2506 else
2507 init_fw_cb->ipv4_ip_opts &=
2508 cpu_to_le16(~IPOPT_FRAGMENTATION_DISABLE);
2509 break;
2510 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN:
2511 if (iface_param->iface_num & 0x1)
2512 break;
2513 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2514 init_fw_cb->ipv4_ip_opts |=
2515 cpu_to_le16(IPOPT_IN_FORWARD_EN);
2516 else
2517 init_fw_cb->ipv4_ip_opts &=
2518 cpu_to_le16(~IPOPT_IN_FORWARD_EN);
2519 break;
2520 case ISCSI_NET_PARAM_REDIRECT_EN:
2521 if (iface_param->iface_num & 0x1)
2522 break;
2523 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2524 init_fw_cb->ipv4_ip_opts |=
2525 cpu_to_le16(IPOPT_ARP_REDIRECT_EN);
2526 else
2527 init_fw_cb->ipv4_ip_opts &=
2528 cpu_to_le16(~IPOPT_ARP_REDIRECT_EN);
2529 break;
2530 case ISCSI_NET_PARAM_IPV4_TTL:
2531 if (iface_param->iface_num & 0x1)
2532 break;
2533 init_fw_cb->ipv4_ttl = iface_param->value[0];
2534 break;
2535 default:
2536 ql4_printk(KERN_ERR, ha, "Unknown IPv4 param = %d\n",
2537 iface_param->param);
2538 break;
2539 }
2540 }
2541
qla4xxx_set_iscsi_param(struct scsi_qla_host * ha,struct iscsi_iface_param_info * iface_param,struct addr_ctrl_blk * init_fw_cb)2542 static void qla4xxx_set_iscsi_param(struct scsi_qla_host *ha,
2543 struct iscsi_iface_param_info *iface_param,
2544 struct addr_ctrl_blk *init_fw_cb)
2545 {
2546 switch (iface_param->param) {
2547 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO:
2548 if (iface_param->iface_num & 0x1)
2549 break;
2550 init_fw_cb->def_timeout =
2551 cpu_to_le16(*(uint16_t *)iface_param->value);
2552 break;
2553 case ISCSI_IFACE_PARAM_HDRDGST_EN:
2554 if (iface_param->iface_num & 0x1)
2555 break;
2556 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2557 init_fw_cb->iscsi_opts |=
2558 cpu_to_le16(ISCSIOPTS_HEADER_DIGEST_EN);
2559 else
2560 init_fw_cb->iscsi_opts &=
2561 cpu_to_le16(~ISCSIOPTS_HEADER_DIGEST_EN);
2562 break;
2563 case ISCSI_IFACE_PARAM_DATADGST_EN:
2564 if (iface_param->iface_num & 0x1)
2565 break;
2566 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2567 init_fw_cb->iscsi_opts |=
2568 cpu_to_le16(ISCSIOPTS_DATA_DIGEST_EN);
2569 else
2570 init_fw_cb->iscsi_opts &=
2571 cpu_to_le16(~ISCSIOPTS_DATA_DIGEST_EN);
2572 break;
2573 case ISCSI_IFACE_PARAM_IMM_DATA_EN:
2574 if (iface_param->iface_num & 0x1)
2575 break;
2576 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2577 init_fw_cb->iscsi_opts |=
2578 cpu_to_le16(ISCSIOPTS_IMMEDIATE_DATA_EN);
2579 else
2580 init_fw_cb->iscsi_opts &=
2581 cpu_to_le16(~ISCSIOPTS_IMMEDIATE_DATA_EN);
2582 break;
2583 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN:
2584 if (iface_param->iface_num & 0x1)
2585 break;
2586 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2587 init_fw_cb->iscsi_opts |=
2588 cpu_to_le16(ISCSIOPTS_INITIAL_R2T_EN);
2589 else
2590 init_fw_cb->iscsi_opts &=
2591 cpu_to_le16(~ISCSIOPTS_INITIAL_R2T_EN);
2592 break;
2593 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN:
2594 if (iface_param->iface_num & 0x1)
2595 break;
2596 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2597 init_fw_cb->iscsi_opts |=
2598 cpu_to_le16(ISCSIOPTS_DATA_SEQ_INORDER_EN);
2599 else
2600 init_fw_cb->iscsi_opts &=
2601 cpu_to_le16(~ISCSIOPTS_DATA_SEQ_INORDER_EN);
2602 break;
2603 case ISCSI_IFACE_PARAM_PDU_INORDER_EN:
2604 if (iface_param->iface_num & 0x1)
2605 break;
2606 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2607 init_fw_cb->iscsi_opts |=
2608 cpu_to_le16(ISCSIOPTS_DATA_PDU_INORDER_EN);
2609 else
2610 init_fw_cb->iscsi_opts &=
2611 cpu_to_le16(~ISCSIOPTS_DATA_PDU_INORDER_EN);
2612 break;
2613 case ISCSI_IFACE_PARAM_ERL:
2614 if (iface_param->iface_num & 0x1)
2615 break;
2616 init_fw_cb->iscsi_opts &= cpu_to_le16(~ISCSIOPTS_ERL);
2617 init_fw_cb->iscsi_opts |= cpu_to_le16(iface_param->value[0] &
2618 ISCSIOPTS_ERL);
2619 break;
2620 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH:
2621 if (iface_param->iface_num & 0x1)
2622 break;
2623 init_fw_cb->iscsi_max_pdu_size =
2624 cpu_to_le32(*(uint32_t *)iface_param->value) /
2625 BYTE_UNITS;
2626 break;
2627 case ISCSI_IFACE_PARAM_FIRST_BURST:
2628 if (iface_param->iface_num & 0x1)
2629 break;
2630 init_fw_cb->iscsi_fburst_len =
2631 cpu_to_le32(*(uint32_t *)iface_param->value) /
2632 BYTE_UNITS;
2633 break;
2634 case ISCSI_IFACE_PARAM_MAX_R2T:
2635 if (iface_param->iface_num & 0x1)
2636 break;
2637 init_fw_cb->iscsi_max_outstnd_r2t =
2638 cpu_to_le16(*(uint16_t *)iface_param->value);
2639 break;
2640 case ISCSI_IFACE_PARAM_MAX_BURST:
2641 if (iface_param->iface_num & 0x1)
2642 break;
2643 init_fw_cb->iscsi_max_burst_len =
2644 cpu_to_le32(*(uint32_t *)iface_param->value) /
2645 BYTE_UNITS;
2646 break;
2647 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN:
2648 if (iface_param->iface_num & 0x1)
2649 break;
2650 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2651 init_fw_cb->iscsi_opts |=
2652 cpu_to_le16(ISCSIOPTS_CHAP_AUTH_EN);
2653 else
2654 init_fw_cb->iscsi_opts &=
2655 cpu_to_le16(~ISCSIOPTS_CHAP_AUTH_EN);
2656 break;
2657 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN:
2658 if (iface_param->iface_num & 0x1)
2659 break;
2660 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2661 init_fw_cb->iscsi_opts |=
2662 cpu_to_le16(ISCSIOPTS_BIDI_CHAP_EN);
2663 else
2664 init_fw_cb->iscsi_opts &=
2665 cpu_to_le16(~ISCSIOPTS_BIDI_CHAP_EN);
2666 break;
2667 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL:
2668 if (iface_param->iface_num & 0x1)
2669 break;
2670 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2671 init_fw_cb->iscsi_opts |=
2672 cpu_to_le16(ISCSIOPTS_DISCOVERY_AUTH_EN);
2673 else
2674 init_fw_cb->iscsi_opts &=
2675 cpu_to_le16(~ISCSIOPTS_DISCOVERY_AUTH_EN);
2676 break;
2677 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN:
2678 if (iface_param->iface_num & 0x1)
2679 break;
2680 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2681 init_fw_cb->iscsi_opts |=
2682 cpu_to_le16(ISCSIOPTS_DISCOVERY_LOGOUT_EN);
2683 else
2684 init_fw_cb->iscsi_opts &=
2685 cpu_to_le16(~ISCSIOPTS_DISCOVERY_LOGOUT_EN);
2686 break;
2687 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN:
2688 if (iface_param->iface_num & 0x1)
2689 break;
2690 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2691 init_fw_cb->iscsi_opts |=
2692 cpu_to_le16(ISCSIOPTS_STRICT_LOGIN_COMP_EN);
2693 else
2694 init_fw_cb->iscsi_opts &=
2695 cpu_to_le16(~ISCSIOPTS_STRICT_LOGIN_COMP_EN);
2696 break;
2697 default:
2698 ql4_printk(KERN_ERR, ha, "Unknown iscsi param = %d\n",
2699 iface_param->param);
2700 break;
2701 }
2702 }
2703
2704 static void
qla4xxx_initcb_to_acb(struct addr_ctrl_blk * init_fw_cb)2705 qla4xxx_initcb_to_acb(struct addr_ctrl_blk *init_fw_cb)
2706 {
2707 struct addr_ctrl_blk_def *acb;
2708 acb = (struct addr_ctrl_blk_def *)init_fw_cb;
2709 memset(acb->reserved1, 0, sizeof(acb->reserved1));
2710 memset(acb->reserved2, 0, sizeof(acb->reserved2));
2711 memset(acb->reserved3, 0, sizeof(acb->reserved3));
2712 memset(acb->reserved4, 0, sizeof(acb->reserved4));
2713 memset(acb->reserved5, 0, sizeof(acb->reserved5));
2714 memset(acb->reserved6, 0, sizeof(acb->reserved6));
2715 memset(acb->reserved7, 0, sizeof(acb->reserved7));
2716 memset(acb->reserved8, 0, sizeof(acb->reserved8));
2717 memset(acb->reserved9, 0, sizeof(acb->reserved9));
2718 memset(acb->reserved10, 0, sizeof(acb->reserved10));
2719 memset(acb->reserved11, 0, sizeof(acb->reserved11));
2720 memset(acb->reserved12, 0, sizeof(acb->reserved12));
2721 memset(acb->reserved13, 0, sizeof(acb->reserved13));
2722 memset(acb->reserved14, 0, sizeof(acb->reserved14));
2723 memset(acb->reserved15, 0, sizeof(acb->reserved15));
2724 }
2725
2726 static int
qla4xxx_iface_set_param(struct Scsi_Host * shost,void * data,uint32_t len)2727 qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data, uint32_t len)
2728 {
2729 struct scsi_qla_host *ha = to_qla_host(shost);
2730 int rval = 0;
2731 struct iscsi_iface_param_info *iface_param = NULL;
2732 struct addr_ctrl_blk *init_fw_cb = NULL;
2733 dma_addr_t init_fw_cb_dma;
2734 uint32_t mbox_cmd[MBOX_REG_COUNT];
2735 uint32_t mbox_sts[MBOX_REG_COUNT];
2736 uint32_t rem = len;
2737 struct nlattr *attr;
2738
2739 init_fw_cb = dma_alloc_coherent(&ha->pdev->dev,
2740 sizeof(struct addr_ctrl_blk),
2741 &init_fw_cb_dma, GFP_KERNEL);
2742 if (!init_fw_cb) {
2743 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc init_cb\n",
2744 __func__);
2745 return -ENOMEM;
2746 }
2747
2748 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
2749 memset(&mbox_sts, 0, sizeof(mbox_sts));
2750
2751 if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma)) {
2752 ql4_printk(KERN_ERR, ha, "%s: get ifcb failed\n", __func__);
2753 rval = -EIO;
2754 goto exit_init_fw_cb;
2755 }
2756
2757 nla_for_each_attr(attr, data, len, rem) {
2758 iface_param = nla_data(attr);
2759
2760 if (iface_param->param_type == ISCSI_NET_PARAM) {
2761 switch (iface_param->iface_type) {
2762 case ISCSI_IFACE_TYPE_IPV4:
2763 switch (iface_param->iface_num) {
2764 case 0:
2765 qla4xxx_set_ipv4(ha, iface_param,
2766 init_fw_cb);
2767 break;
2768 default:
2769 /* Cannot have more than one IPv4 interface */
2770 ql4_printk(KERN_ERR, ha,
2771 "Invalid IPv4 iface number = %d\n",
2772 iface_param->iface_num);
2773 break;
2774 }
2775 break;
2776 case ISCSI_IFACE_TYPE_IPV6:
2777 switch (iface_param->iface_num) {
2778 case 0:
2779 case 1:
2780 qla4xxx_set_ipv6(ha, iface_param,
2781 init_fw_cb);
2782 break;
2783 default:
2784 /* Cannot have more than two IPv6 interface */
2785 ql4_printk(KERN_ERR, ha,
2786 "Invalid IPv6 iface number = %d\n",
2787 iface_param->iface_num);
2788 break;
2789 }
2790 break;
2791 default:
2792 ql4_printk(KERN_ERR, ha,
2793 "Invalid iface type\n");
2794 break;
2795 }
2796 } else if (iface_param->param_type == ISCSI_IFACE_PARAM) {
2797 qla4xxx_set_iscsi_param(ha, iface_param,
2798 init_fw_cb);
2799 } else {
2800 continue;
2801 }
2802 }
2803
2804 init_fw_cb->cookie = cpu_to_le32(0x11BEAD5A);
2805
2806 rval = qla4xxx_set_flash(ha, init_fw_cb_dma, FLASH_SEGMENT_IFCB,
2807 sizeof(struct addr_ctrl_blk),
2808 FLASH_OPT_RMW_COMMIT);
2809 if (rval != QLA_SUCCESS) {
2810 ql4_printk(KERN_ERR, ha, "%s: set flash mbx failed\n",
2811 __func__);
2812 rval = -EIO;
2813 goto exit_init_fw_cb;
2814 }
2815
2816 rval = qla4xxx_disable_acb(ha);
2817 if (rval != QLA_SUCCESS) {
2818 ql4_printk(KERN_ERR, ha, "%s: disable acb mbx failed\n",
2819 __func__);
2820 rval = -EIO;
2821 goto exit_init_fw_cb;
2822 }
2823
2824 wait_for_completion_timeout(&ha->disable_acb_comp,
2825 DISABLE_ACB_TOV * HZ);
2826
2827 qla4xxx_initcb_to_acb(init_fw_cb);
2828
2829 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma);
2830 if (rval != QLA_SUCCESS) {
2831 ql4_printk(KERN_ERR, ha, "%s: set acb mbx failed\n",
2832 __func__);
2833 rval = -EIO;
2834 goto exit_init_fw_cb;
2835 }
2836
2837 memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk));
2838 qla4xxx_update_local_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb,
2839 init_fw_cb_dma);
2840
2841 exit_init_fw_cb:
2842 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk),
2843 init_fw_cb, init_fw_cb_dma);
2844
2845 return rval;
2846 }
2847
qla4xxx_session_get_param(struct iscsi_cls_session * cls_sess,enum iscsi_param param,char * buf)2848 static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess,
2849 enum iscsi_param param, char *buf)
2850 {
2851 struct iscsi_session *sess = cls_sess->dd_data;
2852 struct ddb_entry *ddb_entry = sess->dd_data;
2853 struct scsi_qla_host *ha = ddb_entry->ha;
2854 struct iscsi_cls_conn *cls_conn = ddb_entry->conn;
2855 struct ql4_chap_table chap_tbl;
2856 int rval, len;
2857 uint16_t idx;
2858
2859 memset(&chap_tbl, 0, sizeof(chap_tbl));
2860 switch (param) {
2861 case ISCSI_PARAM_CHAP_IN_IDX:
2862 rval = qla4xxx_get_chap_index(ha, sess->username_in,
2863 sess->password_in, BIDI_CHAP,
2864 &idx);
2865 if (rval)
2866 len = sprintf(buf, "\n");
2867 else
2868 len = sprintf(buf, "%hu\n", idx);
2869 break;
2870 case ISCSI_PARAM_CHAP_OUT_IDX:
2871 if (ddb_entry->ddb_type == FLASH_DDB) {
2872 if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) {
2873 idx = ddb_entry->chap_tbl_idx;
2874 rval = QLA_SUCCESS;
2875 } else {
2876 rval = QLA_ERROR;
2877 }
2878 } else {
2879 rval = qla4xxx_get_chap_index(ha, sess->username,
2880 sess->password,
2881 LOCAL_CHAP, &idx);
2882 }
2883 if (rval)
2884 len = sprintf(buf, "\n");
2885 else
2886 len = sprintf(buf, "%hu\n", idx);
2887 break;
2888 case ISCSI_PARAM_USERNAME:
2889 case ISCSI_PARAM_PASSWORD:
2890 /* First, populate session username and password for FLASH DDB,
2891 * if not already done. This happens when session login fails
2892 * for a FLASH DDB.
2893 */
2894 if (ddb_entry->ddb_type == FLASH_DDB &&
2895 ddb_entry->chap_tbl_idx != INVALID_ENTRY &&
2896 !sess->username && !sess->password) {
2897 idx = ddb_entry->chap_tbl_idx;
2898 rval = qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name,
2899 chap_tbl.secret,
2900 idx);
2901 if (!rval) {
2902 iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME,
2903 (char *)chap_tbl.name,
2904 strlen((char *)chap_tbl.name));
2905 iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD,
2906 (char *)chap_tbl.secret,
2907 chap_tbl.secret_len);
2908 }
2909 }
2910 fallthrough;
2911 default:
2912 return iscsi_session_get_param(cls_sess, param, buf);
2913 }
2914
2915 return len;
2916 }
2917
qla4xxx_conn_get_param(struct iscsi_cls_conn * cls_conn,enum iscsi_param param,char * buf)2918 static int qla4xxx_conn_get_param(struct iscsi_cls_conn *cls_conn,
2919 enum iscsi_param param, char *buf)
2920 {
2921 struct iscsi_conn *conn;
2922 struct qla_conn *qla_conn;
2923 struct sockaddr *dst_addr;
2924
2925 conn = cls_conn->dd_data;
2926 qla_conn = conn->dd_data;
2927 dst_addr = (struct sockaddr *)&qla_conn->qla_ep->dst_addr;
2928
2929 switch (param) {
2930 case ISCSI_PARAM_CONN_PORT:
2931 case ISCSI_PARAM_CONN_ADDRESS:
2932 return iscsi_conn_get_addr_param((struct sockaddr_storage *)
2933 dst_addr, param, buf);
2934 default:
2935 return iscsi_conn_get_param(cls_conn, param, buf);
2936 }
2937 }
2938
qla4xxx_get_ddb_index(struct scsi_qla_host * ha,uint16_t * ddb_index)2939 int qla4xxx_get_ddb_index(struct scsi_qla_host *ha, uint16_t *ddb_index)
2940 {
2941 uint32_t mbx_sts = 0;
2942 uint16_t tmp_ddb_index;
2943 int ret;
2944
2945 get_ddb_index:
2946 tmp_ddb_index = find_first_zero_bit(ha->ddb_idx_map, MAX_DDB_ENTRIES);
2947
2948 if (tmp_ddb_index >= MAX_DDB_ENTRIES) {
2949 DEBUG2(ql4_printk(KERN_INFO, ha,
2950 "Free DDB index not available\n"));
2951 ret = QLA_ERROR;
2952 goto exit_get_ddb_index;
2953 }
2954
2955 if (test_and_set_bit(tmp_ddb_index, ha->ddb_idx_map))
2956 goto get_ddb_index;
2957
2958 DEBUG2(ql4_printk(KERN_INFO, ha,
2959 "Found a free DDB index at %d\n", tmp_ddb_index));
2960 ret = qla4xxx_req_ddb_entry(ha, tmp_ddb_index, &mbx_sts);
2961 if (ret == QLA_ERROR) {
2962 if (mbx_sts == MBOX_STS_COMMAND_ERROR) {
2963 ql4_printk(KERN_INFO, ha,
2964 "DDB index = %d not available trying next\n",
2965 tmp_ddb_index);
2966 goto get_ddb_index;
2967 }
2968 DEBUG2(ql4_printk(KERN_INFO, ha,
2969 "Free FW DDB not available\n"));
2970 }
2971
2972 *ddb_index = tmp_ddb_index;
2973
2974 exit_get_ddb_index:
2975 return ret;
2976 }
2977
qla4xxx_match_ipaddress(struct scsi_qla_host * ha,struct ddb_entry * ddb_entry,char * existing_ipaddr,char * user_ipaddr)2978 static int qla4xxx_match_ipaddress(struct scsi_qla_host *ha,
2979 struct ddb_entry *ddb_entry,
2980 char *existing_ipaddr,
2981 char *user_ipaddr)
2982 {
2983 uint8_t dst_ipaddr[IPv6_ADDR_LEN];
2984 char formatted_ipaddr[DDB_IPADDR_LEN];
2985 int status = QLA_SUCCESS, ret = 0;
2986
2987 if (ddb_entry->fw_ddb_entry.options & DDB_OPT_IPV6_DEVICE) {
2988 ret = in6_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr,
2989 '\0', NULL);
2990 if (ret == 0) {
2991 status = QLA_ERROR;
2992 goto out_match;
2993 }
2994 ret = sprintf(formatted_ipaddr, "%pI6", dst_ipaddr);
2995 } else {
2996 ret = in4_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr,
2997 '\0', NULL);
2998 if (ret == 0) {
2999 status = QLA_ERROR;
3000 goto out_match;
3001 }
3002 ret = sprintf(formatted_ipaddr, "%pI4", dst_ipaddr);
3003 }
3004
3005 if (strcmp(existing_ipaddr, formatted_ipaddr))
3006 status = QLA_ERROR;
3007
3008 out_match:
3009 return status;
3010 }
3011
qla4xxx_match_fwdb_session(struct scsi_qla_host * ha,struct iscsi_cls_conn * cls_conn)3012 static int qla4xxx_match_fwdb_session(struct scsi_qla_host *ha,
3013 struct iscsi_cls_conn *cls_conn)
3014 {
3015 int idx = 0, max_ddbs, rval;
3016 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
3017 struct iscsi_session *sess, *existing_sess;
3018 struct iscsi_conn *conn, *existing_conn;
3019 struct ddb_entry *ddb_entry;
3020
3021 sess = cls_sess->dd_data;
3022 conn = cls_conn->dd_data;
3023
3024 if (sess->targetname == NULL ||
3025 conn->persistent_address == NULL ||
3026 conn->persistent_port == 0)
3027 return QLA_ERROR;
3028
3029 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
3030 MAX_DEV_DB_ENTRIES;
3031
3032 for (idx = 0; idx < max_ddbs; idx++) {
3033 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
3034 if (ddb_entry == NULL)
3035 continue;
3036
3037 if (ddb_entry->ddb_type != FLASH_DDB)
3038 continue;
3039
3040 existing_sess = ddb_entry->sess->dd_data;
3041 existing_conn = ddb_entry->conn->dd_data;
3042
3043 if (existing_sess->targetname == NULL ||
3044 existing_conn->persistent_address == NULL ||
3045 existing_conn->persistent_port == 0)
3046 continue;
3047
3048 DEBUG2(ql4_printk(KERN_INFO, ha,
3049 "IQN = %s User IQN = %s\n",
3050 existing_sess->targetname,
3051 sess->targetname));
3052
3053 DEBUG2(ql4_printk(KERN_INFO, ha,
3054 "IP = %s User IP = %s\n",
3055 existing_conn->persistent_address,
3056 conn->persistent_address));
3057
3058 DEBUG2(ql4_printk(KERN_INFO, ha,
3059 "Port = %d User Port = %d\n",
3060 existing_conn->persistent_port,
3061 conn->persistent_port));
3062
3063 if (strcmp(existing_sess->targetname, sess->targetname))
3064 continue;
3065 rval = qla4xxx_match_ipaddress(ha, ddb_entry,
3066 existing_conn->persistent_address,
3067 conn->persistent_address);
3068 if (rval == QLA_ERROR)
3069 continue;
3070 if (existing_conn->persistent_port != conn->persistent_port)
3071 continue;
3072 break;
3073 }
3074
3075 if (idx == max_ddbs)
3076 return QLA_ERROR;
3077
3078 DEBUG2(ql4_printk(KERN_INFO, ha,
3079 "Match found in fwdb sessions\n"));
3080 return QLA_SUCCESS;
3081 }
3082
3083 static struct iscsi_cls_session *
qla4xxx_session_create(struct iscsi_endpoint * ep,uint16_t cmds_max,uint16_t qdepth,uint32_t initial_cmdsn)3084 qla4xxx_session_create(struct iscsi_endpoint *ep,
3085 uint16_t cmds_max, uint16_t qdepth,
3086 uint32_t initial_cmdsn)
3087 {
3088 struct iscsi_cls_session *cls_sess;
3089 struct scsi_qla_host *ha;
3090 struct qla_endpoint *qla_ep;
3091 struct ddb_entry *ddb_entry;
3092 uint16_t ddb_index;
3093 struct iscsi_session *sess;
3094 int ret;
3095
3096 if (!ep) {
3097 printk(KERN_ERR "qla4xxx: missing ep.\n");
3098 return NULL;
3099 }
3100
3101 qla_ep = ep->dd_data;
3102 ha = to_qla_host(qla_ep->host);
3103 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__,
3104 ha->host_no));
3105
3106 ret = qla4xxx_get_ddb_index(ha, &ddb_index);
3107 if (ret == QLA_ERROR)
3108 return NULL;
3109
3110 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, qla_ep->host,
3111 cmds_max, sizeof(struct ddb_entry),
3112 sizeof(struct ql4_task_data),
3113 initial_cmdsn, ddb_index);
3114 if (!cls_sess)
3115 return NULL;
3116
3117 sess = cls_sess->dd_data;
3118 ddb_entry = sess->dd_data;
3119 ddb_entry->fw_ddb_index = ddb_index;
3120 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE;
3121 ddb_entry->ha = ha;
3122 ddb_entry->sess = cls_sess;
3123 ddb_entry->unblock_sess = qla4xxx_unblock_ddb;
3124 ddb_entry->ddb_change = qla4xxx_ddb_change;
3125 clear_bit(DDB_CONN_CLOSE_FAILURE, &ddb_entry->flags);
3126 cls_sess->recovery_tmo = ql4xsess_recovery_tmo;
3127 ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry;
3128 ha->tot_ddbs++;
3129
3130 return cls_sess;
3131 }
3132
qla4xxx_session_destroy(struct iscsi_cls_session * cls_sess)3133 static void qla4xxx_session_destroy(struct iscsi_cls_session *cls_sess)
3134 {
3135 struct iscsi_session *sess;
3136 struct ddb_entry *ddb_entry;
3137 struct scsi_qla_host *ha;
3138 unsigned long flags, wtime;
3139 struct dev_db_entry *fw_ddb_entry = NULL;
3140 dma_addr_t fw_ddb_entry_dma;
3141 uint32_t ddb_state;
3142 int ret;
3143
3144 sess = cls_sess->dd_data;
3145 ddb_entry = sess->dd_data;
3146 ha = ddb_entry->ha;
3147 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__,
3148 ha->host_no));
3149
3150 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3151 &fw_ddb_entry_dma, GFP_KERNEL);
3152 if (!fw_ddb_entry) {
3153 ql4_printk(KERN_ERR, ha,
3154 "%s: Unable to allocate dma buffer\n", __func__);
3155 goto destroy_session;
3156 }
3157
3158 wtime = jiffies + (HZ * LOGOUT_TOV);
3159 do {
3160 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
3161 fw_ddb_entry, fw_ddb_entry_dma,
3162 NULL, NULL, &ddb_state, NULL,
3163 NULL, NULL);
3164 if (ret == QLA_ERROR)
3165 goto destroy_session;
3166
3167 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) ||
3168 (ddb_state == DDB_DS_SESSION_FAILED))
3169 goto destroy_session;
3170
3171 schedule_timeout_uninterruptible(HZ);
3172 } while ((time_after(wtime, jiffies)));
3173
3174 destroy_session:
3175 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
3176 if (test_and_clear_bit(DDB_CONN_CLOSE_FAILURE, &ddb_entry->flags))
3177 clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map);
3178 spin_lock_irqsave(&ha->hardware_lock, flags);
3179 qla4xxx_free_ddb(ha, ddb_entry);
3180 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3181
3182 iscsi_session_teardown(cls_sess);
3183
3184 if (fw_ddb_entry)
3185 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3186 fw_ddb_entry, fw_ddb_entry_dma);
3187 }
3188
3189 static struct iscsi_cls_conn *
qla4xxx_conn_create(struct iscsi_cls_session * cls_sess,uint32_t conn_idx)3190 qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx)
3191 {
3192 struct iscsi_cls_conn *cls_conn;
3193 struct iscsi_session *sess;
3194 struct ddb_entry *ddb_entry;
3195 struct scsi_qla_host *ha;
3196
3197 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn),
3198 conn_idx);
3199 if (!cls_conn) {
3200 pr_info("%s: Can not create connection for conn_idx = %u\n",
3201 __func__, conn_idx);
3202 return NULL;
3203 }
3204
3205 sess = cls_sess->dd_data;
3206 ddb_entry = sess->dd_data;
3207 ddb_entry->conn = cls_conn;
3208
3209 ha = ddb_entry->ha;
3210 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: conn_idx = %u\n", __func__,
3211 conn_idx));
3212 return cls_conn;
3213 }
3214
qla4xxx_conn_bind(struct iscsi_cls_session * cls_session,struct iscsi_cls_conn * cls_conn,uint64_t transport_fd,int is_leading)3215 static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session,
3216 struct iscsi_cls_conn *cls_conn,
3217 uint64_t transport_fd, int is_leading)
3218 {
3219 struct iscsi_conn *conn;
3220 struct qla_conn *qla_conn;
3221 struct iscsi_endpoint *ep;
3222 struct ddb_entry *ddb_entry;
3223 struct scsi_qla_host *ha;
3224 struct iscsi_session *sess;
3225
3226 sess = cls_session->dd_data;
3227 ddb_entry = sess->dd_data;
3228 ha = ddb_entry->ha;
3229
3230 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: sid = %d, cid = %d\n", __func__,
3231 cls_session->sid, cls_conn->cid));
3232
3233 if (iscsi_conn_bind(cls_session, cls_conn, is_leading))
3234 return -EINVAL;
3235 ep = iscsi_lookup_endpoint(transport_fd);
3236 if (!ep)
3237 return -EINVAL;
3238 conn = cls_conn->dd_data;
3239 qla_conn = conn->dd_data;
3240 qla_conn->qla_ep = ep->dd_data;
3241 iscsi_put_endpoint(ep);
3242 return 0;
3243 }
3244
qla4xxx_conn_start(struct iscsi_cls_conn * cls_conn)3245 static int qla4xxx_conn_start(struct iscsi_cls_conn *cls_conn)
3246 {
3247 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
3248 struct iscsi_session *sess;
3249 struct ddb_entry *ddb_entry;
3250 struct scsi_qla_host *ha;
3251 struct dev_db_entry *fw_ddb_entry = NULL;
3252 dma_addr_t fw_ddb_entry_dma;
3253 uint32_t mbx_sts = 0;
3254 int ret = 0;
3255 int status = QLA_SUCCESS;
3256
3257 sess = cls_sess->dd_data;
3258 ddb_entry = sess->dd_data;
3259 ha = ddb_entry->ha;
3260 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: sid = %d, cid = %d\n", __func__,
3261 cls_sess->sid, cls_conn->cid));
3262
3263 /* Check if we have matching FW DDB, if yes then do not
3264 * login to this target. This could cause target to logout previous
3265 * connection
3266 */
3267 ret = qla4xxx_match_fwdb_session(ha, cls_conn);
3268 if (ret == QLA_SUCCESS) {
3269 ql4_printk(KERN_INFO, ha,
3270 "Session already exist in FW.\n");
3271 ret = -EEXIST;
3272 goto exit_conn_start;
3273 }
3274
3275 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3276 &fw_ddb_entry_dma, GFP_KERNEL);
3277 if (!fw_ddb_entry) {
3278 ql4_printk(KERN_ERR, ha,
3279 "%s: Unable to allocate dma buffer\n", __func__);
3280 ret = -ENOMEM;
3281 goto exit_conn_start;
3282 }
3283
3284 ret = qla4xxx_set_param_ddbentry(ha, ddb_entry, cls_conn, &mbx_sts);
3285 if (ret) {
3286 /* If iscsid is stopped and started then no need to do
3287 * set param again since ddb state will be already
3288 * active and FW does not allow set ddb to an
3289 * active session.
3290 */
3291 if (mbx_sts)
3292 if (ddb_entry->fw_ddb_device_state ==
3293 DDB_DS_SESSION_ACTIVE) {
3294 ddb_entry->unblock_sess(ddb_entry->sess);
3295 goto exit_set_param;
3296 }
3297
3298 ql4_printk(KERN_ERR, ha, "%s: Failed set param for index[%d]\n",
3299 __func__, ddb_entry->fw_ddb_index);
3300 goto exit_conn_start;
3301 }
3302
3303 status = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index);
3304 if (status == QLA_ERROR) {
3305 ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__,
3306 sess->targetname);
3307 ret = -EINVAL;
3308 goto exit_conn_start;
3309 }
3310
3311 if (ddb_entry->fw_ddb_device_state == DDB_DS_NO_CONNECTION_ACTIVE)
3312 ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS;
3313
3314 DEBUG2(printk(KERN_INFO "%s: DDB state [%d]\n", __func__,
3315 ddb_entry->fw_ddb_device_state));
3316
3317 exit_set_param:
3318 ret = 0;
3319
3320 exit_conn_start:
3321 if (fw_ddb_entry)
3322 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3323 fw_ddb_entry, fw_ddb_entry_dma);
3324 return ret;
3325 }
3326
qla4xxx_conn_destroy(struct iscsi_cls_conn * cls_conn)3327 static void qla4xxx_conn_destroy(struct iscsi_cls_conn *cls_conn)
3328 {
3329 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
3330 struct iscsi_session *sess;
3331 struct scsi_qla_host *ha;
3332 struct ddb_entry *ddb_entry;
3333 int options;
3334
3335 sess = cls_sess->dd_data;
3336 ddb_entry = sess->dd_data;
3337 ha = ddb_entry->ha;
3338 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: cid = %d\n", __func__,
3339 cls_conn->cid));
3340
3341 options = LOGOUT_OPTION_CLOSE_SESSION;
3342 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR)
3343 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__);
3344 }
3345
qla4xxx_task_work(struct work_struct * wdata)3346 static void qla4xxx_task_work(struct work_struct *wdata)
3347 {
3348 struct ql4_task_data *task_data;
3349 struct scsi_qla_host *ha;
3350 struct passthru_status *sts;
3351 struct iscsi_task *task;
3352 struct iscsi_hdr *hdr;
3353 uint8_t *data;
3354 uint32_t data_len;
3355 struct iscsi_conn *conn;
3356 int hdr_len;
3357 itt_t itt;
3358
3359 task_data = container_of(wdata, struct ql4_task_data, task_work);
3360 ha = task_data->ha;
3361 task = task_data->task;
3362 sts = &task_data->sts;
3363 hdr_len = sizeof(struct iscsi_hdr);
3364
3365 DEBUG3(printk(KERN_INFO "Status returned\n"));
3366 DEBUG3(qla4xxx_dump_buffer(sts, 64));
3367 DEBUG3(printk(KERN_INFO "Response buffer"));
3368 DEBUG3(qla4xxx_dump_buffer(task_data->resp_buffer, 64));
3369
3370 conn = task->conn;
3371
3372 switch (sts->completionStatus) {
3373 case PASSTHRU_STATUS_COMPLETE:
3374 hdr = (struct iscsi_hdr *)task_data->resp_buffer;
3375 /* Assign back the itt in hdr, until we use the PREASSIGN_TAG */
3376 itt = sts->handle;
3377 hdr->itt = itt;
3378 data = task_data->resp_buffer + hdr_len;
3379 data_len = task_data->resp_len - hdr_len;
3380 iscsi_complete_pdu(conn, hdr, data, data_len);
3381 break;
3382 default:
3383 ql4_printk(KERN_ERR, ha, "Passthru failed status = 0x%x\n",
3384 sts->completionStatus);
3385 break;
3386 }
3387 return;
3388 }
3389
qla4xxx_alloc_pdu(struct iscsi_task * task,uint8_t opcode)3390 static int qla4xxx_alloc_pdu(struct iscsi_task *task, uint8_t opcode)
3391 {
3392 struct ql4_task_data *task_data;
3393 struct iscsi_session *sess;
3394 struct ddb_entry *ddb_entry;
3395 struct scsi_qla_host *ha;
3396 int hdr_len;
3397
3398 sess = task->conn->session;
3399 ddb_entry = sess->dd_data;
3400 ha = ddb_entry->ha;
3401 task_data = task->dd_data;
3402 memset(task_data, 0, sizeof(struct ql4_task_data));
3403
3404 if (task->sc) {
3405 ql4_printk(KERN_INFO, ha,
3406 "%s: SCSI Commands not implemented\n", __func__);
3407 return -EINVAL;
3408 }
3409
3410 hdr_len = sizeof(struct iscsi_hdr);
3411 task_data->ha = ha;
3412 task_data->task = task;
3413
3414 if (task->data_count) {
3415 task_data->data_dma = dma_map_single(&ha->pdev->dev, task->data,
3416 task->data_count,
3417 DMA_TO_DEVICE);
3418 }
3419
3420 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n",
3421 __func__, task->conn->max_recv_dlength, hdr_len));
3422
3423 task_data->resp_len = task->conn->max_recv_dlength + hdr_len;
3424 task_data->resp_buffer = dma_alloc_coherent(&ha->pdev->dev,
3425 task_data->resp_len,
3426 &task_data->resp_dma,
3427 GFP_ATOMIC);
3428 if (!task_data->resp_buffer)
3429 goto exit_alloc_pdu;
3430
3431 task_data->req_len = task->data_count + hdr_len;
3432 task_data->req_buffer = dma_alloc_coherent(&ha->pdev->dev,
3433 task_data->req_len,
3434 &task_data->req_dma,
3435 GFP_ATOMIC);
3436 if (!task_data->req_buffer)
3437 goto exit_alloc_pdu;
3438
3439 task->hdr = task_data->req_buffer;
3440
3441 INIT_WORK(&task_data->task_work, qla4xxx_task_work);
3442
3443 return 0;
3444
3445 exit_alloc_pdu:
3446 if (task_data->resp_buffer)
3447 dma_free_coherent(&ha->pdev->dev, task_data->resp_len,
3448 task_data->resp_buffer, task_data->resp_dma);
3449
3450 if (task_data->req_buffer)
3451 dma_free_coherent(&ha->pdev->dev, task_data->req_len,
3452 task_data->req_buffer, task_data->req_dma);
3453 return -ENOMEM;
3454 }
3455
qla4xxx_task_cleanup(struct iscsi_task * task)3456 static void qla4xxx_task_cleanup(struct iscsi_task *task)
3457 {
3458 struct ql4_task_data *task_data;
3459 struct iscsi_session *sess;
3460 struct ddb_entry *ddb_entry;
3461 struct scsi_qla_host *ha;
3462 int hdr_len;
3463
3464 hdr_len = sizeof(struct iscsi_hdr);
3465 sess = task->conn->session;
3466 ddb_entry = sess->dd_data;
3467 ha = ddb_entry->ha;
3468 task_data = task->dd_data;
3469
3470 if (task->data_count) {
3471 dma_unmap_single(&ha->pdev->dev, task_data->data_dma,
3472 task->data_count, DMA_TO_DEVICE);
3473 }
3474
3475 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n",
3476 __func__, task->conn->max_recv_dlength, hdr_len));
3477
3478 dma_free_coherent(&ha->pdev->dev, task_data->resp_len,
3479 task_data->resp_buffer, task_data->resp_dma);
3480 dma_free_coherent(&ha->pdev->dev, task_data->req_len,
3481 task_data->req_buffer, task_data->req_dma);
3482 return;
3483 }
3484
qla4xxx_task_xmit(struct iscsi_task * task)3485 static int qla4xxx_task_xmit(struct iscsi_task *task)
3486 {
3487 struct scsi_cmnd *sc = task->sc;
3488 struct iscsi_session *sess = task->conn->session;
3489 struct ddb_entry *ddb_entry = sess->dd_data;
3490 struct scsi_qla_host *ha = ddb_entry->ha;
3491
3492 if (!sc)
3493 return qla4xxx_send_passthru0(task);
3494
3495 ql4_printk(KERN_INFO, ha, "%s: scsi cmd xmit not implemented\n",
3496 __func__);
3497 return -ENOSYS;
3498 }
3499
qla4xxx_copy_from_fwddb_param(struct iscsi_bus_flash_session * sess,struct iscsi_bus_flash_conn * conn,struct dev_db_entry * fw_ddb_entry)3500 static int qla4xxx_copy_from_fwddb_param(struct iscsi_bus_flash_session *sess,
3501 struct iscsi_bus_flash_conn *conn,
3502 struct dev_db_entry *fw_ddb_entry)
3503 {
3504 unsigned long options = 0;
3505 int rc = 0;
3506
3507 options = le16_to_cpu(fw_ddb_entry->options);
3508 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options);
3509 if (test_bit(OPT_IPV6_DEVICE, &options)) {
3510 rc = iscsi_switch_str_param(&sess->portal_type,
3511 PORTAL_TYPE_IPV6);
3512 if (rc)
3513 goto exit_copy;
3514 } else {
3515 rc = iscsi_switch_str_param(&sess->portal_type,
3516 PORTAL_TYPE_IPV4);
3517 if (rc)
3518 goto exit_copy;
3519 }
3520
3521 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE,
3522 &options);
3523 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options);
3524 sess->entry_state = test_bit(OPT_ENTRY_STATE, &options);
3525
3526 options = le16_to_cpu(fw_ddb_entry->iscsi_options);
3527 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options);
3528 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options);
3529 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options);
3530 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options);
3531 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER,
3532 &options);
3533 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options);
3534 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options);
3535 conn->snack_req_en = test_bit(ISCSIOPT_SNACK_REQ_EN, &options);
3536 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN,
3537 &options);
3538 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options);
3539 sess->discovery_auth_optional =
3540 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options);
3541 if (test_bit(ISCSIOPT_ERL1, &options))
3542 sess->erl |= BIT_1;
3543 if (test_bit(ISCSIOPT_ERL0, &options))
3544 sess->erl |= BIT_0;
3545
3546 options = le16_to_cpu(fw_ddb_entry->tcp_options);
3547 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options);
3548 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options);
3549 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options);
3550 if (test_bit(TCPOPT_TIMER_SCALE3, &options))
3551 conn->tcp_timer_scale |= BIT_3;
3552 if (test_bit(TCPOPT_TIMER_SCALE2, &options))
3553 conn->tcp_timer_scale |= BIT_2;
3554 if (test_bit(TCPOPT_TIMER_SCALE1, &options))
3555 conn->tcp_timer_scale |= BIT_1;
3556
3557 conn->tcp_timer_scale >>= 1;
3558 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options);
3559
3560 options = le16_to_cpu(fw_ddb_entry->ip_options);
3561 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options);
3562
3563 conn->max_recv_dlength = BYTE_UNITS *
3564 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len);
3565 conn->max_xmit_dlength = BYTE_UNITS *
3566 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len);
3567 sess->first_burst = BYTE_UNITS *
3568 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len);
3569 sess->max_burst = BYTE_UNITS *
3570 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len);
3571 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t);
3572 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
3573 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain);
3574 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
3575 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss);
3576 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf;
3577 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf;
3578 conn->ipv6_flow_label = le16_to_cpu(fw_ddb_entry->ipv6_flow_lbl);
3579 conn->keepalive_timeout = le16_to_cpu(fw_ddb_entry->ka_timeout);
3580 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port);
3581 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn);
3582 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn);
3583 sess->discovery_parent_idx = le16_to_cpu(fw_ddb_entry->ddb_link);
3584 sess->discovery_parent_type = le16_to_cpu(fw_ddb_entry->ddb_link);
3585 sess->chap_out_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
3586 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid);
3587
3588 sess->default_taskmgmt_timeout =
3589 le16_to_cpu(fw_ddb_entry->def_timeout);
3590 conn->port = le16_to_cpu(fw_ddb_entry->port);
3591
3592 options = le16_to_cpu(fw_ddb_entry->options);
3593 conn->ipaddress = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL);
3594 if (!conn->ipaddress) {
3595 rc = -ENOMEM;
3596 goto exit_copy;
3597 }
3598
3599 conn->redirect_ipaddr = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL);
3600 if (!conn->redirect_ipaddr) {
3601 rc = -ENOMEM;
3602 goto exit_copy;
3603 }
3604
3605 memcpy(conn->ipaddress, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN);
3606 memcpy(conn->redirect_ipaddr, fw_ddb_entry->tgt_addr, IPv6_ADDR_LEN);
3607
3608 if (test_bit(OPT_IPV6_DEVICE, &options)) {
3609 conn->ipv6_traffic_class = fw_ddb_entry->ipv4_tos;
3610
3611 conn->link_local_ipv6_addr = kmemdup(
3612 fw_ddb_entry->link_local_ipv6_addr,
3613 IPv6_ADDR_LEN, GFP_KERNEL);
3614 if (!conn->link_local_ipv6_addr) {
3615 rc = -ENOMEM;
3616 goto exit_copy;
3617 }
3618 } else {
3619 conn->ipv4_tos = fw_ddb_entry->ipv4_tos;
3620 }
3621
3622 if (fw_ddb_entry->iscsi_name[0]) {
3623 rc = iscsi_switch_str_param(&sess->targetname,
3624 (char *)fw_ddb_entry->iscsi_name);
3625 if (rc)
3626 goto exit_copy;
3627 }
3628
3629 if (fw_ddb_entry->iscsi_alias[0]) {
3630 rc = iscsi_switch_str_param(&sess->targetalias,
3631 (char *)fw_ddb_entry->iscsi_alias);
3632 if (rc)
3633 goto exit_copy;
3634 }
3635
3636 COPY_ISID(sess->isid, fw_ddb_entry->isid);
3637
3638 exit_copy:
3639 return rc;
3640 }
3641
qla4xxx_copy_to_fwddb_param(struct iscsi_bus_flash_session * sess,struct iscsi_bus_flash_conn * conn,struct dev_db_entry * fw_ddb_entry)3642 static int qla4xxx_copy_to_fwddb_param(struct iscsi_bus_flash_session *sess,
3643 struct iscsi_bus_flash_conn *conn,
3644 struct dev_db_entry *fw_ddb_entry)
3645 {
3646 uint16_t options;
3647 int rc = 0;
3648
3649 options = le16_to_cpu(fw_ddb_entry->options);
3650 SET_BITVAL(conn->is_fw_assigned_ipv6, options, BIT_11);
3651 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4))
3652 options |= BIT_8;
3653 else
3654 options &= ~BIT_8;
3655
3656 SET_BITVAL(sess->auto_snd_tgt_disable, options, BIT_6);
3657 SET_BITVAL(sess->discovery_sess, options, BIT_4);
3658 SET_BITVAL(sess->entry_state, options, BIT_3);
3659 fw_ddb_entry->options = cpu_to_le16(options);
3660
3661 options = le16_to_cpu(fw_ddb_entry->iscsi_options);
3662 SET_BITVAL(conn->hdrdgst_en, options, BIT_13);
3663 SET_BITVAL(conn->datadgst_en, options, BIT_12);
3664 SET_BITVAL(sess->imm_data_en, options, BIT_11);
3665 SET_BITVAL(sess->initial_r2t_en, options, BIT_10);
3666 SET_BITVAL(sess->dataseq_inorder_en, options, BIT_9);
3667 SET_BITVAL(sess->pdu_inorder_en, options, BIT_8);
3668 SET_BITVAL(sess->chap_auth_en, options, BIT_7);
3669 SET_BITVAL(conn->snack_req_en, options, BIT_6);
3670 SET_BITVAL(sess->discovery_logout_en, options, BIT_5);
3671 SET_BITVAL(sess->bidi_chap_en, options, BIT_4);
3672 SET_BITVAL(sess->discovery_auth_optional, options, BIT_3);
3673 SET_BITVAL(sess->erl & BIT_1, options, BIT_1);
3674 SET_BITVAL(sess->erl & BIT_0, options, BIT_0);
3675 fw_ddb_entry->iscsi_options = cpu_to_le16(options);
3676
3677 options = le16_to_cpu(fw_ddb_entry->tcp_options);
3678 SET_BITVAL(conn->tcp_timestamp_stat, options, BIT_6);
3679 SET_BITVAL(conn->tcp_nagle_disable, options, BIT_5);
3680 SET_BITVAL(conn->tcp_wsf_disable, options, BIT_4);
3681 SET_BITVAL(conn->tcp_timer_scale & BIT_2, options, BIT_3);
3682 SET_BITVAL(conn->tcp_timer_scale & BIT_1, options, BIT_2);
3683 SET_BITVAL(conn->tcp_timer_scale & BIT_0, options, BIT_1);
3684 SET_BITVAL(conn->tcp_timestamp_en, options, BIT_0);
3685 fw_ddb_entry->tcp_options = cpu_to_le16(options);
3686
3687 options = le16_to_cpu(fw_ddb_entry->ip_options);
3688 SET_BITVAL(conn->fragment_disable, options, BIT_4);
3689 fw_ddb_entry->ip_options = cpu_to_le16(options);
3690
3691 fw_ddb_entry->iscsi_max_outsnd_r2t = cpu_to_le16(sess->max_r2t);
3692 fw_ddb_entry->iscsi_max_rcv_data_seg_len =
3693 cpu_to_le16(conn->max_recv_dlength / BYTE_UNITS);
3694 fw_ddb_entry->iscsi_max_snd_data_seg_len =
3695 cpu_to_le16(conn->max_xmit_dlength / BYTE_UNITS);
3696 fw_ddb_entry->iscsi_first_burst_len =
3697 cpu_to_le16(sess->first_burst / BYTE_UNITS);
3698 fw_ddb_entry->iscsi_max_burst_len = cpu_to_le16(sess->max_burst /
3699 BYTE_UNITS);
3700 fw_ddb_entry->iscsi_def_time2wait = cpu_to_le16(sess->time2wait);
3701 fw_ddb_entry->iscsi_def_time2retain = cpu_to_le16(sess->time2retain);
3702 fw_ddb_entry->tgt_portal_grp = cpu_to_le16(sess->tpgt);
3703 fw_ddb_entry->mss = cpu_to_le16(conn->max_segment_size);
3704 fw_ddb_entry->tcp_xmt_wsf = (uint8_t) cpu_to_le32(conn->tcp_xmit_wsf);
3705 fw_ddb_entry->tcp_rcv_wsf = (uint8_t) cpu_to_le32(conn->tcp_recv_wsf);
3706 fw_ddb_entry->ipv6_flow_lbl = cpu_to_le16(conn->ipv6_flow_label);
3707 fw_ddb_entry->ka_timeout = cpu_to_le16(conn->keepalive_timeout);
3708 fw_ddb_entry->lcl_port = cpu_to_le16(conn->local_port);
3709 fw_ddb_entry->stat_sn = cpu_to_le32(conn->statsn);
3710 fw_ddb_entry->exp_stat_sn = cpu_to_le32(conn->exp_statsn);
3711 fw_ddb_entry->ddb_link = cpu_to_le16(sess->discovery_parent_idx);
3712 fw_ddb_entry->chap_tbl_idx = cpu_to_le16(sess->chap_out_idx);
3713 fw_ddb_entry->tsid = cpu_to_le16(sess->tsid);
3714 fw_ddb_entry->port = cpu_to_le16(conn->port);
3715 fw_ddb_entry->def_timeout =
3716 cpu_to_le16(sess->default_taskmgmt_timeout);
3717
3718 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4))
3719 fw_ddb_entry->ipv4_tos = conn->ipv6_traffic_class;
3720 else
3721 fw_ddb_entry->ipv4_tos = conn->ipv4_tos;
3722
3723 if (conn->ipaddress)
3724 memcpy(fw_ddb_entry->ip_addr, conn->ipaddress,
3725 sizeof(fw_ddb_entry->ip_addr));
3726
3727 if (conn->redirect_ipaddr)
3728 memcpy(fw_ddb_entry->tgt_addr, conn->redirect_ipaddr,
3729 sizeof(fw_ddb_entry->tgt_addr));
3730
3731 if (conn->link_local_ipv6_addr)
3732 memcpy(fw_ddb_entry->link_local_ipv6_addr,
3733 conn->link_local_ipv6_addr,
3734 sizeof(fw_ddb_entry->link_local_ipv6_addr));
3735
3736 if (sess->targetname)
3737 memcpy(fw_ddb_entry->iscsi_name, sess->targetname,
3738 sizeof(fw_ddb_entry->iscsi_name));
3739
3740 if (sess->targetalias)
3741 memcpy(fw_ddb_entry->iscsi_alias, sess->targetalias,
3742 sizeof(fw_ddb_entry->iscsi_alias));
3743
3744 COPY_ISID(fw_ddb_entry->isid, sess->isid);
3745
3746 return rc;
3747 }
3748
qla4xxx_copy_to_sess_conn_params(struct iscsi_conn * conn,struct iscsi_session * sess,struct dev_db_entry * fw_ddb_entry)3749 static void qla4xxx_copy_to_sess_conn_params(struct iscsi_conn *conn,
3750 struct iscsi_session *sess,
3751 struct dev_db_entry *fw_ddb_entry)
3752 {
3753 unsigned long options = 0;
3754 uint16_t ddb_link;
3755 uint16_t disc_parent;
3756 char ip_addr[DDB_IPADDR_LEN];
3757
3758 options = le16_to_cpu(fw_ddb_entry->options);
3759 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options);
3760 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE,
3761 &options);
3762 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options);
3763
3764 options = le16_to_cpu(fw_ddb_entry->iscsi_options);
3765 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options);
3766 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options);
3767 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options);
3768 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options);
3769 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER,
3770 &options);
3771 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options);
3772 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options);
3773 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN,
3774 &options);
3775 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options);
3776 sess->discovery_auth_optional =
3777 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options);
3778 if (test_bit(ISCSIOPT_ERL1, &options))
3779 sess->erl |= BIT_1;
3780 if (test_bit(ISCSIOPT_ERL0, &options))
3781 sess->erl |= BIT_0;
3782
3783 options = le16_to_cpu(fw_ddb_entry->tcp_options);
3784 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options);
3785 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options);
3786 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options);
3787 if (test_bit(TCPOPT_TIMER_SCALE3, &options))
3788 conn->tcp_timer_scale |= BIT_3;
3789 if (test_bit(TCPOPT_TIMER_SCALE2, &options))
3790 conn->tcp_timer_scale |= BIT_2;
3791 if (test_bit(TCPOPT_TIMER_SCALE1, &options))
3792 conn->tcp_timer_scale |= BIT_1;
3793
3794 conn->tcp_timer_scale >>= 1;
3795 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options);
3796
3797 options = le16_to_cpu(fw_ddb_entry->ip_options);
3798 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options);
3799
3800 conn->max_recv_dlength = BYTE_UNITS *
3801 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len);
3802 conn->max_xmit_dlength = BYTE_UNITS *
3803 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len);
3804 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t);
3805 sess->first_burst = BYTE_UNITS *
3806 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len);
3807 sess->max_burst = BYTE_UNITS *
3808 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len);
3809 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
3810 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain);
3811 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
3812 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss);
3813 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf;
3814 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf;
3815 conn->ipv4_tos = fw_ddb_entry->ipv4_tos;
3816 conn->keepalive_tmo = le16_to_cpu(fw_ddb_entry->ka_timeout);
3817 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port);
3818 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn);
3819 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn);
3820 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid);
3821 COPY_ISID(sess->isid, fw_ddb_entry->isid);
3822
3823 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
3824 if (ddb_link == DDB_ISNS)
3825 disc_parent = ISCSI_DISC_PARENT_ISNS;
3826 else if (ddb_link == DDB_NO_LINK)
3827 disc_parent = ISCSI_DISC_PARENT_UNKNOWN;
3828 else if (ddb_link < MAX_DDB_ENTRIES)
3829 disc_parent = ISCSI_DISC_PARENT_SENDTGT;
3830 else
3831 disc_parent = ISCSI_DISC_PARENT_UNKNOWN;
3832
3833 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_DISCOVERY_PARENT_TYPE,
3834 iscsi_get_discovery_parent_name(disc_parent), 0);
3835
3836 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_TARGET_ALIAS,
3837 (char *)fw_ddb_entry->iscsi_alias, 0);
3838
3839 options = le16_to_cpu(fw_ddb_entry->options);
3840 if (options & DDB_OPT_IPV6_DEVICE) {
3841 memset(ip_addr, 0, sizeof(ip_addr));
3842 sprintf(ip_addr, "%pI6", fw_ddb_entry->link_local_ipv6_addr);
3843 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_LOCAL_IPADDR,
3844 (char *)ip_addr, 0);
3845 }
3846 }
3847
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)3848 static void qla4xxx_copy_fwddb_param(struct scsi_qla_host *ha,
3849 struct dev_db_entry *fw_ddb_entry,
3850 struct iscsi_cls_session *cls_sess,
3851 struct iscsi_cls_conn *cls_conn)
3852 {
3853 int buflen = 0;
3854 struct iscsi_session *sess;
3855 struct ddb_entry *ddb_entry;
3856 struct ql4_chap_table chap_tbl;
3857 struct iscsi_conn *conn;
3858 char ip_addr[DDB_IPADDR_LEN];
3859 uint16_t options = 0;
3860
3861 sess = cls_sess->dd_data;
3862 ddb_entry = sess->dd_data;
3863 conn = cls_conn->dd_data;
3864 memset(&chap_tbl, 0, sizeof(chap_tbl));
3865
3866 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
3867
3868 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry);
3869
3870 sess->def_taskmgmt_tmo = le16_to_cpu(fw_ddb_entry->def_timeout);
3871 conn->persistent_port = le16_to_cpu(fw_ddb_entry->port);
3872
3873 memset(ip_addr, 0, sizeof(ip_addr));
3874 options = le16_to_cpu(fw_ddb_entry->options);
3875 if (options & DDB_OPT_IPV6_DEVICE) {
3876 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv6", 4);
3877
3878 memset(ip_addr, 0, sizeof(ip_addr));
3879 sprintf(ip_addr, "%pI6", fw_ddb_entry->ip_addr);
3880 } else {
3881 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv4", 4);
3882 sprintf(ip_addr, "%pI4", fw_ddb_entry->ip_addr);
3883 }
3884
3885 iscsi_set_param(cls_conn, ISCSI_PARAM_PERSISTENT_ADDRESS,
3886 (char *)ip_addr, buflen);
3887 iscsi_set_param(cls_conn, ISCSI_PARAM_TARGET_NAME,
3888 (char *)fw_ddb_entry->iscsi_name, buflen);
3889 iscsi_set_param(cls_conn, ISCSI_PARAM_INITIATOR_NAME,
3890 (char *)ha->name_string, buflen);
3891
3892 if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) {
3893 if (!qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name,
3894 chap_tbl.secret,
3895 ddb_entry->chap_tbl_idx)) {
3896 iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME,
3897 (char *)chap_tbl.name,
3898 strlen((char *)chap_tbl.name));
3899 iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD,
3900 (char *)chap_tbl.secret,
3901 chap_tbl.secret_len);
3902 }
3903 }
3904 }
3905
qla4xxx_update_session_conn_fwddb_param(struct scsi_qla_host * ha,struct ddb_entry * ddb_entry)3906 void qla4xxx_update_session_conn_fwddb_param(struct scsi_qla_host *ha,
3907 struct ddb_entry *ddb_entry)
3908 {
3909 struct iscsi_cls_session *cls_sess;
3910 struct iscsi_cls_conn *cls_conn;
3911 uint32_t ddb_state;
3912 dma_addr_t fw_ddb_entry_dma;
3913 struct dev_db_entry *fw_ddb_entry;
3914
3915 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3916 &fw_ddb_entry_dma, GFP_KERNEL);
3917 if (!fw_ddb_entry) {
3918 ql4_printk(KERN_ERR, ha,
3919 "%s: Unable to allocate dma buffer\n", __func__);
3920 goto exit_session_conn_fwddb_param;
3921 }
3922
3923 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry,
3924 fw_ddb_entry_dma, NULL, NULL, &ddb_state,
3925 NULL, NULL, NULL) == QLA_ERROR) {
3926 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
3927 "get_ddb_entry for fw_ddb_index %d\n",
3928 ha->host_no, __func__,
3929 ddb_entry->fw_ddb_index));
3930 goto exit_session_conn_fwddb_param;
3931 }
3932
3933 cls_sess = ddb_entry->sess;
3934
3935 cls_conn = ddb_entry->conn;
3936
3937 /* Update params */
3938 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn);
3939
3940 exit_session_conn_fwddb_param:
3941 if (fw_ddb_entry)
3942 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3943 fw_ddb_entry, fw_ddb_entry_dma);
3944 }
3945
qla4xxx_update_session_conn_param(struct scsi_qla_host * ha,struct ddb_entry * ddb_entry)3946 void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha,
3947 struct ddb_entry *ddb_entry)
3948 {
3949 struct iscsi_cls_session *cls_sess;
3950 struct iscsi_cls_conn *cls_conn;
3951 struct iscsi_session *sess;
3952 struct iscsi_conn *conn;
3953 uint32_t ddb_state;
3954 dma_addr_t fw_ddb_entry_dma;
3955 struct dev_db_entry *fw_ddb_entry;
3956
3957 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3958 &fw_ddb_entry_dma, GFP_KERNEL);
3959 if (!fw_ddb_entry) {
3960 ql4_printk(KERN_ERR, ha,
3961 "%s: Unable to allocate dma buffer\n", __func__);
3962 goto exit_session_conn_param;
3963 }
3964
3965 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry,
3966 fw_ddb_entry_dma, NULL, NULL, &ddb_state,
3967 NULL, NULL, NULL) == QLA_ERROR) {
3968 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
3969 "get_ddb_entry for fw_ddb_index %d\n",
3970 ha->host_no, __func__,
3971 ddb_entry->fw_ddb_index));
3972 goto exit_session_conn_param;
3973 }
3974
3975 cls_sess = ddb_entry->sess;
3976 sess = cls_sess->dd_data;
3977
3978 cls_conn = ddb_entry->conn;
3979 conn = cls_conn->dd_data;
3980
3981 /* Update timers after login */
3982 ddb_entry->default_relogin_timeout =
3983 (le16_to_cpu(fw_ddb_entry->def_timeout) > LOGIN_TOV) &&
3984 (le16_to_cpu(fw_ddb_entry->def_timeout) < LOGIN_TOV * 10) ?
3985 le16_to_cpu(fw_ddb_entry->def_timeout) : LOGIN_TOV;
3986 ddb_entry->default_time2wait =
3987 le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
3988
3989 /* Update params */
3990 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
3991 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry);
3992
3993 memcpy(sess->initiatorname, ha->name_string,
3994 min(sizeof(ha->name_string), sizeof(sess->initiatorname)));
3995
3996 exit_session_conn_param:
3997 if (fw_ddb_entry)
3998 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3999 fw_ddb_entry, fw_ddb_entry_dma);
4000 }
4001
4002 /*
4003 * Timer routines
4004 */
4005 static void qla4xxx_timer(struct timer_list *t);
4006
qla4xxx_start_timer(struct scsi_qla_host * ha,unsigned long interval)4007 static void qla4xxx_start_timer(struct scsi_qla_host *ha,
4008 unsigned long interval)
4009 {
4010 DEBUG(printk("scsi: %s: Starting timer thread for adapter %d\n",
4011 __func__, ha->host->host_no));
4012 timer_setup(&ha->timer, qla4xxx_timer, 0);
4013 ha->timer.expires = jiffies + interval * HZ;
4014 add_timer(&ha->timer);
4015 ha->timer_active = 1;
4016 }
4017
qla4xxx_stop_timer(struct scsi_qla_host * ha)4018 static void qla4xxx_stop_timer(struct scsi_qla_host *ha)
4019 {
4020 del_timer_sync(&ha->timer);
4021 ha->timer_active = 0;
4022 }
4023
4024 /***
4025 * qla4xxx_mark_device_missing - blocks the session
4026 * @cls_session: Pointer to the session to be blocked
4027 * @ddb_entry: Pointer to device database entry
4028 *
4029 * This routine marks a device missing and close connection.
4030 **/
qla4xxx_mark_device_missing(struct iscsi_cls_session * cls_session)4031 void qla4xxx_mark_device_missing(struct iscsi_cls_session *cls_session)
4032 {
4033 iscsi_block_session(cls_session);
4034 }
4035
4036 /**
4037 * qla4xxx_mark_all_devices_missing - mark all devices as missing.
4038 * @ha: Pointer to host adapter structure.
4039 *
4040 * This routine marks a device missing and resets the relogin retry count.
4041 **/
qla4xxx_mark_all_devices_missing(struct scsi_qla_host * ha)4042 void qla4xxx_mark_all_devices_missing(struct scsi_qla_host *ha)
4043 {
4044 iscsi_host_for_each_session(ha->host, qla4xxx_mark_device_missing);
4045 }
4046
qla4xxx_get_new_srb(struct scsi_qla_host * ha,struct ddb_entry * ddb_entry,struct scsi_cmnd * cmd)4047 static struct srb* qla4xxx_get_new_srb(struct scsi_qla_host *ha,
4048 struct ddb_entry *ddb_entry,
4049 struct scsi_cmnd *cmd)
4050 {
4051 struct srb *srb;
4052
4053 srb = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
4054 if (!srb)
4055 return srb;
4056
4057 kref_init(&srb->srb_ref);
4058 srb->ha = ha;
4059 srb->ddb = ddb_entry;
4060 srb->cmd = cmd;
4061 srb->flags = 0;
4062 CMD_SP(cmd) = (void *)srb;
4063
4064 return srb;
4065 }
4066
qla4xxx_srb_free_dma(struct scsi_qla_host * ha,struct srb * srb)4067 static void qla4xxx_srb_free_dma(struct scsi_qla_host *ha, struct srb *srb)
4068 {
4069 struct scsi_cmnd *cmd = srb->cmd;
4070
4071 if (srb->flags & SRB_DMA_VALID) {
4072 scsi_dma_unmap(cmd);
4073 srb->flags &= ~SRB_DMA_VALID;
4074 }
4075 CMD_SP(cmd) = NULL;
4076 }
4077
qla4xxx_srb_compl(struct kref * ref)4078 void qla4xxx_srb_compl(struct kref *ref)
4079 {
4080 struct srb *srb = container_of(ref, struct srb, srb_ref);
4081 struct scsi_cmnd *cmd = srb->cmd;
4082 struct scsi_qla_host *ha = srb->ha;
4083
4084 qla4xxx_srb_free_dma(ha, srb);
4085
4086 mempool_free(srb, ha->srb_mempool);
4087
4088 cmd->scsi_done(cmd);
4089 }
4090
4091 /**
4092 * qla4xxx_queuecommand - scsi layer issues scsi command to driver.
4093 * @host: scsi host
4094 * @cmd: Pointer to Linux's SCSI command structure
4095 *
4096 * Remarks:
4097 * This routine is invoked by Linux to send a SCSI command to the driver.
4098 * The mid-level driver tries to ensure that queuecommand never gets
4099 * invoked concurrently with itself or the interrupt handler (although
4100 * the interrupt handler may call this routine as part of request-
4101 * completion handling). Unfortunely, it sometimes calls the scheduler
4102 * in interrupt context which is a big NO! NO!.
4103 **/
qla4xxx_queuecommand(struct Scsi_Host * host,struct scsi_cmnd * cmd)4104 static int qla4xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
4105 {
4106 struct scsi_qla_host *ha = to_qla_host(host);
4107 struct ddb_entry *ddb_entry = cmd->device->hostdata;
4108 struct iscsi_cls_session *sess = ddb_entry->sess;
4109 struct srb *srb;
4110 int rval;
4111
4112 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
4113 if (test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags))
4114 cmd->result = DID_NO_CONNECT << 16;
4115 else
4116 cmd->result = DID_REQUEUE << 16;
4117 goto qc_fail_command;
4118 }
4119
4120 if (!sess) {
4121 cmd->result = DID_IMM_RETRY << 16;
4122 goto qc_fail_command;
4123 }
4124
4125 rval = iscsi_session_chkready(sess);
4126 if (rval) {
4127 cmd->result = rval;
4128 goto qc_fail_command;
4129 }
4130
4131 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
4132 test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) ||
4133 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
4134 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) ||
4135 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) ||
4136 !test_bit(AF_ONLINE, &ha->flags) ||
4137 !test_bit(AF_LINK_UP, &ha->flags) ||
4138 test_bit(AF_LOOPBACK, &ha->flags) ||
4139 test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags) ||
4140 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags) ||
4141 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))
4142 goto qc_host_busy;
4143
4144 srb = qla4xxx_get_new_srb(ha, ddb_entry, cmd);
4145 if (!srb)
4146 goto qc_host_busy;
4147
4148 rval = qla4xxx_send_command_to_isp(ha, srb);
4149 if (rval != QLA_SUCCESS)
4150 goto qc_host_busy_free_sp;
4151
4152 return 0;
4153
4154 qc_host_busy_free_sp:
4155 qla4xxx_srb_free_dma(ha, srb);
4156 mempool_free(srb, ha->srb_mempool);
4157
4158 qc_host_busy:
4159 return SCSI_MLQUEUE_HOST_BUSY;
4160
4161 qc_fail_command:
4162 cmd->scsi_done(cmd);
4163
4164 return 0;
4165 }
4166
4167 /**
4168 * qla4xxx_mem_free - frees memory allocated to adapter
4169 * @ha: Pointer to host adapter structure.
4170 *
4171 * Frees memory previously allocated by qla4xxx_mem_alloc
4172 **/
qla4xxx_mem_free(struct scsi_qla_host * ha)4173 static void qla4xxx_mem_free(struct scsi_qla_host *ha)
4174 {
4175 if (ha->queues)
4176 dma_free_coherent(&ha->pdev->dev, ha->queues_len, ha->queues,
4177 ha->queues_dma);
4178
4179 if (ha->fw_dump)
4180 vfree(ha->fw_dump);
4181
4182 ha->queues_len = 0;
4183 ha->queues = NULL;
4184 ha->queues_dma = 0;
4185 ha->request_ring = NULL;
4186 ha->request_dma = 0;
4187 ha->response_ring = NULL;
4188 ha->response_dma = 0;
4189 ha->shadow_regs = NULL;
4190 ha->shadow_regs_dma = 0;
4191 ha->fw_dump = NULL;
4192 ha->fw_dump_size = 0;
4193
4194 /* Free srb pool. */
4195 mempool_destroy(ha->srb_mempool);
4196 ha->srb_mempool = NULL;
4197
4198 dma_pool_destroy(ha->chap_dma_pool);
4199
4200 if (ha->chap_list)
4201 vfree(ha->chap_list);
4202 ha->chap_list = NULL;
4203
4204 dma_pool_destroy(ha->fw_ddb_dma_pool);
4205
4206 /* release io space registers */
4207 if (is_qla8022(ha)) {
4208 if (ha->nx_pcibase)
4209 iounmap(
4210 (struct device_reg_82xx __iomem *)ha->nx_pcibase);
4211 } else if (is_qla8032(ha) || is_qla8042(ha)) {
4212 if (ha->nx_pcibase)
4213 iounmap(
4214 (struct device_reg_83xx __iomem *)ha->nx_pcibase);
4215 } else if (ha->reg) {
4216 iounmap(ha->reg);
4217 }
4218
4219 if (ha->reset_tmplt.buff)
4220 vfree(ha->reset_tmplt.buff);
4221
4222 pci_release_regions(ha->pdev);
4223 }
4224
4225 /**
4226 * qla4xxx_mem_alloc - allocates memory for use by adapter.
4227 * @ha: Pointer to host adapter structure
4228 *
4229 * Allocates DMA memory for request and response queues. Also allocates memory
4230 * for srbs.
4231 **/
qla4xxx_mem_alloc(struct scsi_qla_host * ha)4232 static int qla4xxx_mem_alloc(struct scsi_qla_host *ha)
4233 {
4234 unsigned long align;
4235
4236 /* Allocate contiguous block of DMA memory for queues. */
4237 ha->queues_len = ((REQUEST_QUEUE_DEPTH * QUEUE_SIZE) +
4238 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE) +
4239 sizeof(struct shadow_regs) +
4240 MEM_ALIGN_VALUE +
4241 (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
4242 ha->queues = dma_alloc_coherent(&ha->pdev->dev, ha->queues_len,
4243 &ha->queues_dma, GFP_KERNEL);
4244 if (ha->queues == NULL) {
4245 ql4_printk(KERN_WARNING, ha,
4246 "Memory Allocation failed - queues.\n");
4247
4248 goto mem_alloc_error_exit;
4249 }
4250
4251 /*
4252 * As per RISC alignment requirements -- the bus-address must be a
4253 * multiple of the request-ring size (in bytes).
4254 */
4255 align = 0;
4256 if ((unsigned long)ha->queues_dma & (MEM_ALIGN_VALUE - 1))
4257 align = MEM_ALIGN_VALUE - ((unsigned long)ha->queues_dma &
4258 (MEM_ALIGN_VALUE - 1));
4259
4260 /* Update request and response queue pointers. */
4261 ha->request_dma = ha->queues_dma + align;
4262 ha->request_ring = (struct queue_entry *) (ha->queues + align);
4263 ha->response_dma = ha->queues_dma + align +
4264 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE);
4265 ha->response_ring = (struct queue_entry *) (ha->queues + align +
4266 (REQUEST_QUEUE_DEPTH *
4267 QUEUE_SIZE));
4268 ha->shadow_regs_dma = ha->queues_dma + align +
4269 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE) +
4270 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE);
4271 ha->shadow_regs = (struct shadow_regs *) (ha->queues + align +
4272 (REQUEST_QUEUE_DEPTH *
4273 QUEUE_SIZE) +
4274 (RESPONSE_QUEUE_DEPTH *
4275 QUEUE_SIZE));
4276
4277 /* Allocate memory for srb pool. */
4278 ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab,
4279 mempool_free_slab, srb_cachep);
4280 if (ha->srb_mempool == NULL) {
4281 ql4_printk(KERN_WARNING, ha,
4282 "Memory Allocation failed - SRB Pool.\n");
4283
4284 goto mem_alloc_error_exit;
4285 }
4286
4287 ha->chap_dma_pool = dma_pool_create("ql4_chap", &ha->pdev->dev,
4288 CHAP_DMA_BLOCK_SIZE, 8, 0);
4289
4290 if (ha->chap_dma_pool == NULL) {
4291 ql4_printk(KERN_WARNING, ha,
4292 "%s: chap_dma_pool allocation failed..\n", __func__);
4293 goto mem_alloc_error_exit;
4294 }
4295
4296 ha->fw_ddb_dma_pool = dma_pool_create("ql4_fw_ddb", &ha->pdev->dev,
4297 DDB_DMA_BLOCK_SIZE, 8, 0);
4298
4299 if (ha->fw_ddb_dma_pool == NULL) {
4300 ql4_printk(KERN_WARNING, ha,
4301 "%s: fw_ddb_dma_pool allocation failed..\n",
4302 __func__);
4303 goto mem_alloc_error_exit;
4304 }
4305
4306 return QLA_SUCCESS;
4307
4308 mem_alloc_error_exit:
4309 return QLA_ERROR;
4310 }
4311
4312 /**
4313 * qla4_8xxx_check_temp - Check the ISP82XX temperature.
4314 * @ha: adapter block pointer.
4315 *
4316 * Note: The caller should not hold the idc lock.
4317 **/
qla4_8xxx_check_temp(struct scsi_qla_host * ha)4318 static int qla4_8xxx_check_temp(struct scsi_qla_host *ha)
4319 {
4320 uint32_t temp, temp_state, temp_val;
4321 int status = QLA_SUCCESS;
4322
4323 temp = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_TEMP_STATE);
4324
4325 temp_state = qla82xx_get_temp_state(temp);
4326 temp_val = qla82xx_get_temp_val(temp);
4327
4328 if (temp_state == QLA82XX_TEMP_PANIC) {
4329 ql4_printk(KERN_WARNING, ha, "Device temperature %d degrees C"
4330 " exceeds maximum allowed. Hardware has been shut"
4331 " down.\n", temp_val);
4332 status = QLA_ERROR;
4333 } else if (temp_state == QLA82XX_TEMP_WARN) {
4334 if (ha->temperature == QLA82XX_TEMP_NORMAL)
4335 ql4_printk(KERN_WARNING, ha, "Device temperature %d"
4336 " degrees C exceeds operating range."
4337 " Immediate action needed.\n", temp_val);
4338 } else {
4339 if (ha->temperature == QLA82XX_TEMP_WARN)
4340 ql4_printk(KERN_INFO, ha, "Device temperature is"
4341 " now %d degrees C in normal range.\n",
4342 temp_val);
4343 }
4344 ha->temperature = temp_state;
4345 return status;
4346 }
4347
4348 /**
4349 * qla4_8xxx_check_fw_alive - Check firmware health
4350 * @ha: Pointer to host adapter structure.
4351 *
4352 * Context: Interrupt
4353 **/
qla4_8xxx_check_fw_alive(struct scsi_qla_host * ha)4354 static int qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha)
4355 {
4356 uint32_t fw_heartbeat_counter;
4357 int status = QLA_SUCCESS;
4358
4359 fw_heartbeat_counter = qla4_8xxx_rd_direct(ha,
4360 QLA8XXX_PEG_ALIVE_COUNTER);
4361 /* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */
4362 if (fw_heartbeat_counter == 0xffffffff) {
4363 DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Device in frozen "
4364 "state, QLA82XX_PEG_ALIVE_COUNTER is 0xffffffff\n",
4365 ha->host_no, __func__));
4366 return status;
4367 }
4368
4369 if (ha->fw_heartbeat_counter == fw_heartbeat_counter) {
4370 ha->seconds_since_last_heartbeat++;
4371 /* FW not alive after 2 seconds */
4372 if (ha->seconds_since_last_heartbeat == 2) {
4373 ha->seconds_since_last_heartbeat = 0;
4374 qla4_8xxx_dump_peg_reg(ha);
4375 status = QLA_ERROR;
4376 }
4377 } else
4378 ha->seconds_since_last_heartbeat = 0;
4379
4380 ha->fw_heartbeat_counter = fw_heartbeat_counter;
4381 return status;
4382 }
4383
qla4_8xxx_process_fw_error(struct scsi_qla_host * ha)4384 static void qla4_8xxx_process_fw_error(struct scsi_qla_host *ha)
4385 {
4386 uint32_t halt_status;
4387 int halt_status_unrecoverable = 0;
4388
4389 halt_status = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_HALT_STATUS1);
4390
4391 if (is_qla8022(ha)) {
4392 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
4393 __func__);
4394 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
4395 CRB_NIU_XG_PAUSE_CTL_P0 |
4396 CRB_NIU_XG_PAUSE_CTL_P1);
4397
4398 if (QLA82XX_FWERROR_CODE(halt_status) == 0x67)
4399 ql4_printk(KERN_ERR, ha, "%s: Firmware aborted with error code 0x00006700. Device is being reset\n",
4400 __func__);
4401 if (halt_status & HALT_STATUS_UNRECOVERABLE)
4402 halt_status_unrecoverable = 1;
4403 } else if (is_qla8032(ha) || is_qla8042(ha)) {
4404 if (halt_status & QLA83XX_HALT_STATUS_FW_RESET)
4405 ql4_printk(KERN_ERR, ha, "%s: Firmware error detected device is being reset\n",
4406 __func__);
4407 else if (halt_status & QLA83XX_HALT_STATUS_UNRECOVERABLE)
4408 halt_status_unrecoverable = 1;
4409 }
4410
4411 /*
4412 * Since we cannot change dev_state in interrupt context,
4413 * set appropriate DPC flag then wakeup DPC
4414 */
4415 if (halt_status_unrecoverable) {
4416 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags);
4417 } else {
4418 ql4_printk(KERN_INFO, ha, "%s: detect abort needed!\n",
4419 __func__);
4420 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4421 }
4422 qla4xxx_mailbox_premature_completion(ha);
4423 qla4xxx_wake_dpc(ha);
4424 }
4425
4426 /**
4427 * qla4_8xxx_watchdog - Poll dev state
4428 * @ha: Pointer to host adapter structure.
4429 *
4430 * Context: Interrupt
4431 **/
qla4_8xxx_watchdog(struct scsi_qla_host * ha)4432 void qla4_8xxx_watchdog(struct scsi_qla_host *ha)
4433 {
4434 uint32_t dev_state;
4435 uint32_t idc_ctrl;
4436
4437 if (is_qla8032(ha) &&
4438 (qla4_83xx_is_detached(ha) == QLA_SUCCESS))
4439 WARN_ONCE(1, "%s: iSCSI function %d marked invisible\n",
4440 __func__, ha->func_num);
4441
4442 /* don't poll if reset is going on */
4443 if (!(test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) ||
4444 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
4445 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags))) {
4446 dev_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE);
4447
4448 if (qla4_8xxx_check_temp(ha)) {
4449 if (is_qla8022(ha)) {
4450 ql4_printk(KERN_INFO, ha, "disabling pause transmit on port 0 & 1.\n");
4451 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
4452 CRB_NIU_XG_PAUSE_CTL_P0 |
4453 CRB_NIU_XG_PAUSE_CTL_P1);
4454 }
4455 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags);
4456 qla4xxx_wake_dpc(ha);
4457 } else if (dev_state == QLA8XXX_DEV_NEED_RESET &&
4458 !test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
4459
4460 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED RESET!\n",
4461 __func__);
4462
4463 if (is_qla8032(ha) || is_qla8042(ha)) {
4464 idc_ctrl = qla4_83xx_rd_reg(ha,
4465 QLA83XX_IDC_DRV_CTRL);
4466 if (!(idc_ctrl & GRACEFUL_RESET_BIT1)) {
4467 ql4_printk(KERN_INFO, ha, "%s: Graceful reset bit is not set\n",
4468 __func__);
4469 qla4xxx_mailbox_premature_completion(
4470 ha);
4471 }
4472 }
4473
4474 if ((is_qla8032(ha) || is_qla8042(ha)) ||
4475 (is_qla8022(ha) && !ql4xdontresethba)) {
4476 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4477 qla4xxx_wake_dpc(ha);
4478 }
4479 } else if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT &&
4480 !test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) {
4481 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED QUIES!\n",
4482 __func__);
4483 set_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags);
4484 qla4xxx_wake_dpc(ha);
4485 } else {
4486 /* Check firmware health */
4487 if (qla4_8xxx_check_fw_alive(ha))
4488 qla4_8xxx_process_fw_error(ha);
4489 }
4490 }
4491 }
4492
qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session * cls_sess)4493 static void qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)
4494 {
4495 struct iscsi_session *sess;
4496 struct ddb_entry *ddb_entry;
4497 struct scsi_qla_host *ha;
4498
4499 sess = cls_sess->dd_data;
4500 ddb_entry = sess->dd_data;
4501 ha = ddb_entry->ha;
4502
4503 if (!(ddb_entry->ddb_type == FLASH_DDB))
4504 return;
4505
4506 if (adapter_up(ha) && !test_bit(DF_RELOGIN, &ddb_entry->flags) &&
4507 !iscsi_is_session_online(cls_sess)) {
4508 if (atomic_read(&ddb_entry->retry_relogin_timer) !=
4509 INVALID_ENTRY) {
4510 if (atomic_read(&ddb_entry->retry_relogin_timer) ==
4511 0) {
4512 atomic_set(&ddb_entry->retry_relogin_timer,
4513 INVALID_ENTRY);
4514 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
4515 set_bit(DF_RELOGIN, &ddb_entry->flags);
4516 DEBUG2(ql4_printk(KERN_INFO, ha,
4517 "%s: index [%d] login device\n",
4518 __func__, ddb_entry->fw_ddb_index));
4519 } else
4520 atomic_dec(&ddb_entry->retry_relogin_timer);
4521 }
4522 }
4523
4524 /* Wait for relogin to timeout */
4525 if (atomic_read(&ddb_entry->relogin_timer) &&
4526 (atomic_dec_and_test(&ddb_entry->relogin_timer) != 0)) {
4527 /*
4528 * If the relogin times out and the device is
4529 * still NOT ONLINE then try and relogin again.
4530 */
4531 if (!iscsi_is_session_online(cls_sess)) {
4532 /* Reset retry relogin timer */
4533 atomic_inc(&ddb_entry->relogin_retry_count);
4534 DEBUG2(ql4_printk(KERN_INFO, ha,
4535 "%s: index[%d] relogin timed out-retrying"
4536 " relogin (%d), retry (%d)\n", __func__,
4537 ddb_entry->fw_ddb_index,
4538 atomic_read(&ddb_entry->relogin_retry_count),
4539 ddb_entry->default_time2wait + 4));
4540 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
4541 atomic_set(&ddb_entry->retry_relogin_timer,
4542 ddb_entry->default_time2wait + 4);
4543 }
4544 }
4545 }
4546
4547 /**
4548 * qla4xxx_timer - checks every second for work to do.
4549 * @t: Context to obtain pointer to host adapter structure.
4550 **/
qla4xxx_timer(struct timer_list * t)4551 static void qla4xxx_timer(struct timer_list *t)
4552 {
4553 struct scsi_qla_host *ha = from_timer(ha, t, timer);
4554 int start_dpc = 0;
4555 uint16_t w;
4556
4557 iscsi_host_for_each_session(ha->host, qla4xxx_check_relogin_flash_ddb);
4558
4559 /* If we are in the middle of AER/EEH processing
4560 * skip any processing and reschedule the timer
4561 */
4562 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
4563 mod_timer(&ha->timer, jiffies + HZ);
4564 return;
4565 }
4566
4567 /* Hardware read to trigger an EEH error during mailbox waits. */
4568 if (!pci_channel_offline(ha->pdev))
4569 pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
4570
4571 if (is_qla80XX(ha))
4572 qla4_8xxx_watchdog(ha);
4573
4574 if (is_qla40XX(ha)) {
4575 /* Check for heartbeat interval. */
4576 if (ha->firmware_options & FWOPT_HEARTBEAT_ENABLE &&
4577 ha->heartbeat_interval != 0) {
4578 ha->seconds_since_last_heartbeat++;
4579 if (ha->seconds_since_last_heartbeat >
4580 ha->heartbeat_interval + 2)
4581 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4582 }
4583 }
4584
4585 /* Process any deferred work. */
4586 if (!list_empty(&ha->work_list))
4587 start_dpc++;
4588
4589 /* Wakeup the dpc routine for this adapter, if needed. */
4590 if (start_dpc ||
4591 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
4592 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags) ||
4593 test_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags) ||
4594 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) ||
4595 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
4596 test_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags) ||
4597 test_bit(DPC_LINK_CHANGED, &ha->dpc_flags) ||
4598 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) ||
4599 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) ||
4600 test_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags) ||
4601 test_bit(DPC_AEN, &ha->dpc_flags)) {
4602 DEBUG2(printk("scsi%ld: %s: scheduling dpc routine"
4603 " - dpc flags = 0x%lx\n",
4604 ha->host_no, __func__, ha->dpc_flags));
4605 qla4xxx_wake_dpc(ha);
4606 }
4607
4608 /* Reschedule timer thread to call us back in one second */
4609 mod_timer(&ha->timer, jiffies + HZ);
4610
4611 DEBUG2(ha->seconds_since_last_intr++);
4612 }
4613
4614 /**
4615 * qla4xxx_cmd_wait - waits for all outstanding commands to complete
4616 * @ha: Pointer to host adapter structure.
4617 *
4618 * This routine stalls the driver until all outstanding commands are returned.
4619 * Caller must release the Hardware Lock prior to calling this routine.
4620 **/
qla4xxx_cmd_wait(struct scsi_qla_host * ha)4621 static int qla4xxx_cmd_wait(struct scsi_qla_host *ha)
4622 {
4623 uint32_t index = 0;
4624 unsigned long flags;
4625 struct scsi_cmnd *cmd;
4626 unsigned long wtime;
4627 uint32_t wtmo;
4628
4629 if (is_qla40XX(ha))
4630 wtmo = WAIT_CMD_TOV;
4631 else
4632 wtmo = ha->nx_reset_timeout / 2;
4633
4634 wtime = jiffies + (wtmo * HZ);
4635
4636 DEBUG2(ql4_printk(KERN_INFO, ha,
4637 "Wait up to %u seconds for cmds to complete\n",
4638 wtmo));
4639
4640 while (!time_after_eq(jiffies, wtime)) {
4641 spin_lock_irqsave(&ha->hardware_lock, flags);
4642 /* Find a command that hasn't completed. */
4643 for (index = 0; index < ha->host->can_queue; index++) {
4644 cmd = scsi_host_find_tag(ha->host, index);
4645 /*
4646 * We cannot just check if the index is valid,
4647 * becase if we are run from the scsi eh, then
4648 * the scsi/block layer is going to prevent
4649 * the tag from being released.
4650 */
4651 if (cmd != NULL && CMD_SP(cmd))
4652 break;
4653 }
4654 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4655
4656 /* If No Commands are pending, wait is complete */
4657 if (index == ha->host->can_queue)
4658 return QLA_SUCCESS;
4659
4660 msleep(1000);
4661 }
4662 /* If we timed out on waiting for commands to come back
4663 * return ERROR. */
4664 return QLA_ERROR;
4665 }
4666
qla4xxx_hw_reset(struct scsi_qla_host * ha)4667 int qla4xxx_hw_reset(struct scsi_qla_host *ha)
4668 {
4669 uint32_t ctrl_status;
4670 unsigned long flags = 0;
4671
4672 DEBUG2(printk(KERN_ERR "scsi%ld: %s\n", ha->host_no, __func__));
4673
4674 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS)
4675 return QLA_ERROR;
4676
4677 spin_lock_irqsave(&ha->hardware_lock, flags);
4678
4679 /*
4680 * If the SCSI Reset Interrupt bit is set, clear it.
4681 * Otherwise, the Soft Reset won't work.
4682 */
4683 ctrl_status = readw(&ha->reg->ctrl_status);
4684 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0)
4685 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status);
4686
4687 /* Issue Soft Reset */
4688 writel(set_rmask(CSR_SOFT_RESET), &ha->reg->ctrl_status);
4689 readl(&ha->reg->ctrl_status);
4690
4691 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4692 return QLA_SUCCESS;
4693 }
4694
4695 /**
4696 * qla4xxx_soft_reset - performs soft reset.
4697 * @ha: Pointer to host adapter structure.
4698 **/
qla4xxx_soft_reset(struct scsi_qla_host * ha)4699 int qla4xxx_soft_reset(struct scsi_qla_host *ha)
4700 {
4701 uint32_t max_wait_time;
4702 unsigned long flags = 0;
4703 int status;
4704 uint32_t ctrl_status;
4705
4706 status = qla4xxx_hw_reset(ha);
4707 if (status != QLA_SUCCESS)
4708 return status;
4709
4710 status = QLA_ERROR;
4711 /* Wait until the Network Reset Intr bit is cleared */
4712 max_wait_time = RESET_INTR_TOV;
4713 do {
4714 spin_lock_irqsave(&ha->hardware_lock, flags);
4715 ctrl_status = readw(&ha->reg->ctrl_status);
4716 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4717
4718 if ((ctrl_status & CSR_NET_RESET_INTR) == 0)
4719 break;
4720
4721 msleep(1000);
4722 } while ((--max_wait_time));
4723
4724 if ((ctrl_status & CSR_NET_RESET_INTR) != 0) {
4725 DEBUG2(printk(KERN_WARNING
4726 "scsi%ld: Network Reset Intr not cleared by "
4727 "Network function, clearing it now!\n",
4728 ha->host_no));
4729 spin_lock_irqsave(&ha->hardware_lock, flags);
4730 writel(set_rmask(CSR_NET_RESET_INTR), &ha->reg->ctrl_status);
4731 readl(&ha->reg->ctrl_status);
4732 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4733 }
4734
4735 /* Wait until the firmware tells us the Soft Reset is done */
4736 max_wait_time = SOFT_RESET_TOV;
4737 do {
4738 spin_lock_irqsave(&ha->hardware_lock, flags);
4739 ctrl_status = readw(&ha->reg->ctrl_status);
4740 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4741
4742 if ((ctrl_status & CSR_SOFT_RESET) == 0) {
4743 status = QLA_SUCCESS;
4744 break;
4745 }
4746
4747 msleep(1000);
4748 } while ((--max_wait_time));
4749
4750 /*
4751 * Also, make sure that the SCSI Reset Interrupt bit has been cleared
4752 * after the soft reset has taken place.
4753 */
4754 spin_lock_irqsave(&ha->hardware_lock, flags);
4755 ctrl_status = readw(&ha->reg->ctrl_status);
4756 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) {
4757 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status);
4758 readl(&ha->reg->ctrl_status);
4759 }
4760 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4761
4762 /* If soft reset fails then most probably the bios on other
4763 * function is also enabled.
4764 * Since the initialization is sequential the other fn
4765 * wont be able to acknowledge the soft reset.
4766 * Issue a force soft reset to workaround this scenario.
4767 */
4768 if (max_wait_time == 0) {
4769 /* Issue Force Soft Reset */
4770 spin_lock_irqsave(&ha->hardware_lock, flags);
4771 writel(set_rmask(CSR_FORCE_SOFT_RESET), &ha->reg->ctrl_status);
4772 readl(&ha->reg->ctrl_status);
4773 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4774 /* Wait until the firmware tells us the Soft Reset is done */
4775 max_wait_time = SOFT_RESET_TOV;
4776 do {
4777 spin_lock_irqsave(&ha->hardware_lock, flags);
4778 ctrl_status = readw(&ha->reg->ctrl_status);
4779 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4780
4781 if ((ctrl_status & CSR_FORCE_SOFT_RESET) == 0) {
4782 status = QLA_SUCCESS;
4783 break;
4784 }
4785
4786 msleep(1000);
4787 } while ((--max_wait_time));
4788 }
4789
4790 return status;
4791 }
4792
4793 /**
4794 * qla4xxx_abort_active_cmds - returns all outstanding i/o requests to O.S.
4795 * @ha: Pointer to host adapter structure.
4796 * @res: returned scsi status
4797 *
4798 * This routine is called just prior to a HARD RESET to return all
4799 * outstanding commands back to the Operating System.
4800 * Caller should make sure that the following locks are released
4801 * before this calling routine: Hardware lock, and io_request_lock.
4802 **/
qla4xxx_abort_active_cmds(struct scsi_qla_host * ha,int res)4803 static void qla4xxx_abort_active_cmds(struct scsi_qla_host *ha, int res)
4804 {
4805 struct srb *srb;
4806 int i;
4807 unsigned long flags;
4808
4809 spin_lock_irqsave(&ha->hardware_lock, flags);
4810 for (i = 0; i < ha->host->can_queue; i++) {
4811 srb = qla4xxx_del_from_active_array(ha, i);
4812 if (srb != NULL) {
4813 srb->cmd->result = res;
4814 kref_put(&srb->srb_ref, qla4xxx_srb_compl);
4815 }
4816 }
4817 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4818 }
4819
qla4xxx_dead_adapter_cleanup(struct scsi_qla_host * ha)4820 void qla4xxx_dead_adapter_cleanup(struct scsi_qla_host *ha)
4821 {
4822 clear_bit(AF_ONLINE, &ha->flags);
4823
4824 /* Disable the board */
4825 ql4_printk(KERN_INFO, ha, "Disabling the board\n");
4826
4827 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
4828 qla4xxx_mark_all_devices_missing(ha);
4829 clear_bit(AF_INIT_DONE, &ha->flags);
4830 }
4831
qla4xxx_fail_session(struct iscsi_cls_session * cls_session)4832 static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session)
4833 {
4834 struct iscsi_session *sess;
4835 struct ddb_entry *ddb_entry;
4836
4837 sess = cls_session->dd_data;
4838 ddb_entry = sess->dd_data;
4839 ddb_entry->fw_ddb_device_state = DDB_DS_SESSION_FAILED;
4840
4841 if (ddb_entry->ddb_type == FLASH_DDB)
4842 iscsi_block_session(ddb_entry->sess);
4843 else
4844 iscsi_session_failure(cls_session->dd_data,
4845 ISCSI_ERR_CONN_FAILED);
4846 }
4847
4848 /**
4849 * qla4xxx_recover_adapter - recovers adapter after a fatal error
4850 * @ha: Pointer to host adapter structure.
4851 **/
qla4xxx_recover_adapter(struct scsi_qla_host * ha)4852 static int qla4xxx_recover_adapter(struct scsi_qla_host *ha)
4853 {
4854 int status = QLA_ERROR;
4855 uint8_t reset_chip = 0;
4856 uint32_t dev_state;
4857 unsigned long wait;
4858
4859 /* Stall incoming I/O until we are done */
4860 scsi_block_requests(ha->host);
4861 clear_bit(AF_ONLINE, &ha->flags);
4862 clear_bit(AF_LINK_UP, &ha->flags);
4863
4864 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: adapter OFFLINE\n", __func__));
4865
4866 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
4867
4868 if ((is_qla8032(ha) || is_qla8042(ha)) &&
4869 !test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) {
4870 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
4871 __func__);
4872 /* disable pause frame for ISP83xx */
4873 qla4_83xx_disable_pause(ha);
4874 }
4875
4876 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session);
4877
4878 if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
4879 reset_chip = 1;
4880
4881 /* For the DPC_RESET_HA_INTR case (ISP-4xxx specific)
4882 * do not reset adapter, jump to initialize_adapter */
4883 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
4884 status = QLA_SUCCESS;
4885 goto recover_ha_init_adapter;
4886 }
4887
4888 /* For the ISP-8xxx adapter, issue a stop_firmware if invoked
4889 * from eh_host_reset or ioctl module */
4890 if (is_qla80XX(ha) && !reset_chip &&
4891 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) {
4892
4893 DEBUG2(ql4_printk(KERN_INFO, ha,
4894 "scsi%ld: %s - Performing stop_firmware...\n",
4895 ha->host_no, __func__));
4896 status = ha->isp_ops->reset_firmware(ha);
4897 if (status == QLA_SUCCESS) {
4898 ha->isp_ops->disable_intrs(ha);
4899 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
4900 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
4901 } else {
4902 /* If the stop_firmware fails then
4903 * reset the entire chip */
4904 reset_chip = 1;
4905 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
4906 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4907 }
4908 }
4909
4910 /* Issue full chip reset if recovering from a catastrophic error,
4911 * or if stop_firmware fails for ISP-8xxx.
4912 * This is the default case for ISP-4xxx */
4913 if (is_qla40XX(ha) || reset_chip) {
4914 if (is_qla40XX(ha))
4915 goto chip_reset;
4916
4917 /* Check if 8XXX firmware is alive or not
4918 * We may have arrived here from NEED_RESET
4919 * detection only */
4920 if (test_bit(AF_FW_RECOVERY, &ha->flags))
4921 goto chip_reset;
4922
4923 wait = jiffies + (FW_ALIVE_WAIT_TOV * HZ);
4924 while (time_before(jiffies, wait)) {
4925 if (qla4_8xxx_check_fw_alive(ha)) {
4926 qla4xxx_mailbox_premature_completion(ha);
4927 break;
4928 }
4929
4930 set_current_state(TASK_UNINTERRUPTIBLE);
4931 schedule_timeout(HZ);
4932 }
4933 chip_reset:
4934 if (!test_bit(AF_FW_RECOVERY, &ha->flags))
4935 qla4xxx_cmd_wait(ha);
4936
4937 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
4938 DEBUG2(ql4_printk(KERN_INFO, ha,
4939 "scsi%ld: %s - Performing chip reset..\n",
4940 ha->host_no, __func__));
4941 status = ha->isp_ops->reset_chip(ha);
4942 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
4943 }
4944
4945 /* Flush any pending ddb changed AENs */
4946 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
4947
4948 recover_ha_init_adapter:
4949 /* Upon successful firmware/chip reset, re-initialize the adapter */
4950 if (status == QLA_SUCCESS) {
4951 /* For ISP-4xxx, force function 1 to always initialize
4952 * before function 3 to prevent both funcions from
4953 * stepping on top of the other */
4954 if (is_qla40XX(ha) && (ha->mac_index == 3))
4955 ssleep(6);
4956
4957 /* NOTE: AF_ONLINE flag set upon successful completion of
4958 * qla4xxx_initialize_adapter */
4959 status = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
4960 if (is_qla80XX(ha) && (status == QLA_ERROR)) {
4961 status = qla4_8xxx_check_init_adapter_retry(ha);
4962 if (status == QLA_ERROR) {
4963 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Don't retry recover adapter\n",
4964 ha->host_no, __func__);
4965 qla4xxx_dead_adapter_cleanup(ha);
4966 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
4967 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
4968 clear_bit(DPC_RESET_HA_FW_CONTEXT,
4969 &ha->dpc_flags);
4970 goto exit_recover;
4971 }
4972 }
4973 }
4974
4975 /* Retry failed adapter initialization, if necessary
4976 * Do not retry initialize_adapter for RESET_HA_INTR (ISP-4xxx specific)
4977 * case to prevent ping-pong resets between functions */
4978 if (!test_bit(AF_ONLINE, &ha->flags) &&
4979 !test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
4980 /* Adapter initialization failed, see if we can retry
4981 * resetting the ha.
4982 * Since we don't want to block the DPC for too long
4983 * with multiple resets in the same thread,
4984 * utilize DPC to retry */
4985 if (is_qla80XX(ha)) {
4986 ha->isp_ops->idc_lock(ha);
4987 dev_state = qla4_8xxx_rd_direct(ha,
4988 QLA8XXX_CRB_DEV_STATE);
4989 ha->isp_ops->idc_unlock(ha);
4990 if (dev_state == QLA8XXX_DEV_FAILED) {
4991 ql4_printk(KERN_INFO, ha, "%s: don't retry "
4992 "recover adapter. H/W is in Failed "
4993 "state\n", __func__);
4994 qla4xxx_dead_adapter_cleanup(ha);
4995 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
4996 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
4997 clear_bit(DPC_RESET_HA_FW_CONTEXT,
4998 &ha->dpc_flags);
4999 status = QLA_ERROR;
5000
5001 goto exit_recover;
5002 }
5003 }
5004
5005 if (!test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags)) {
5006 ha->retry_reset_ha_cnt = MAX_RESET_HA_RETRIES;
5007 DEBUG2(printk("scsi%ld: recover adapter - retrying "
5008 "(%d) more times\n", ha->host_no,
5009 ha->retry_reset_ha_cnt));
5010 set_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
5011 status = QLA_ERROR;
5012 } else {
5013 if (ha->retry_reset_ha_cnt > 0) {
5014 /* Schedule another Reset HA--DPC will retry */
5015 ha->retry_reset_ha_cnt--;
5016 DEBUG2(printk("scsi%ld: recover adapter - "
5017 "retry remaining %d\n",
5018 ha->host_no,
5019 ha->retry_reset_ha_cnt));
5020 status = QLA_ERROR;
5021 }
5022
5023 if (ha->retry_reset_ha_cnt == 0) {
5024 /* Recover adapter retries have been exhausted.
5025 * Adapter DEAD */
5026 DEBUG2(printk("scsi%ld: recover adapter "
5027 "failed - board disabled\n",
5028 ha->host_no));
5029 qla4xxx_dead_adapter_cleanup(ha);
5030 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
5031 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
5032 clear_bit(DPC_RESET_HA_FW_CONTEXT,
5033 &ha->dpc_flags);
5034 status = QLA_ERROR;
5035 }
5036 }
5037 } else {
5038 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
5039 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
5040 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
5041 }
5042
5043 exit_recover:
5044 ha->adapter_error_count++;
5045
5046 if (test_bit(AF_ONLINE, &ha->flags))
5047 ha->isp_ops->enable_intrs(ha);
5048
5049 scsi_unblock_requests(ha->host);
5050
5051 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
5052 DEBUG2(printk("scsi%ld: recover adapter: %s\n", ha->host_no,
5053 status == QLA_ERROR ? "FAILED" : "SUCCEEDED"));
5054
5055 return status;
5056 }
5057
qla4xxx_relogin_devices(struct iscsi_cls_session * cls_session)5058 static void qla4xxx_relogin_devices(struct iscsi_cls_session *cls_session)
5059 {
5060 struct iscsi_session *sess;
5061 struct ddb_entry *ddb_entry;
5062 struct scsi_qla_host *ha;
5063
5064 sess = cls_session->dd_data;
5065 ddb_entry = sess->dd_data;
5066 ha = ddb_entry->ha;
5067 if (!iscsi_is_session_online(cls_session)) {
5068 if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) {
5069 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5070 " unblock session\n", ha->host_no, __func__,
5071 ddb_entry->fw_ddb_index);
5072 iscsi_unblock_session(ddb_entry->sess);
5073 } else {
5074 /* Trigger relogin */
5075 if (ddb_entry->ddb_type == FLASH_DDB) {
5076 if (!(test_bit(DF_RELOGIN, &ddb_entry->flags) ||
5077 test_bit(DF_DISABLE_RELOGIN,
5078 &ddb_entry->flags)))
5079 qla4xxx_arm_relogin_timer(ddb_entry);
5080 } else
5081 iscsi_session_failure(cls_session->dd_data,
5082 ISCSI_ERR_CONN_FAILED);
5083 }
5084 }
5085 }
5086
qla4xxx_unblock_flash_ddb(struct iscsi_cls_session * cls_session)5087 int qla4xxx_unblock_flash_ddb(struct iscsi_cls_session *cls_session)
5088 {
5089 struct iscsi_session *sess;
5090 struct ddb_entry *ddb_entry;
5091 struct scsi_qla_host *ha;
5092
5093 sess = cls_session->dd_data;
5094 ddb_entry = sess->dd_data;
5095 ha = ddb_entry->ha;
5096 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5097 " unblock session\n", ha->host_no, __func__,
5098 ddb_entry->fw_ddb_index);
5099
5100 iscsi_unblock_session(ddb_entry->sess);
5101
5102 /* Start scan target */
5103 if (test_bit(AF_ONLINE, &ha->flags)) {
5104 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5105 " start scan\n", ha->host_no, __func__,
5106 ddb_entry->fw_ddb_index);
5107 scsi_queue_work(ha->host, &ddb_entry->sess->scan_work);
5108 }
5109 return QLA_SUCCESS;
5110 }
5111
qla4xxx_unblock_ddb(struct iscsi_cls_session * cls_session)5112 int qla4xxx_unblock_ddb(struct iscsi_cls_session *cls_session)
5113 {
5114 struct iscsi_session *sess;
5115 struct ddb_entry *ddb_entry;
5116 struct scsi_qla_host *ha;
5117 int status = QLA_SUCCESS;
5118
5119 sess = cls_session->dd_data;
5120 ddb_entry = sess->dd_data;
5121 ha = ddb_entry->ha;
5122 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5123 " unblock user space session\n", ha->host_no, __func__,
5124 ddb_entry->fw_ddb_index);
5125
5126 if (!iscsi_is_session_online(cls_session)) {
5127 iscsi_conn_start(ddb_entry->conn);
5128 iscsi_conn_login_event(ddb_entry->conn,
5129 ISCSI_CONN_STATE_LOGGED_IN);
5130 } else {
5131 ql4_printk(KERN_INFO, ha,
5132 "scsi%ld: %s: ddb[%d] session [%d] already logged in\n",
5133 ha->host_no, __func__, ddb_entry->fw_ddb_index,
5134 cls_session->sid);
5135 status = QLA_ERROR;
5136 }
5137
5138 return status;
5139 }
5140
qla4xxx_relogin_all_devices(struct scsi_qla_host * ha)5141 static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha)
5142 {
5143 iscsi_host_for_each_session(ha->host, qla4xxx_relogin_devices);
5144 }
5145
qla4xxx_relogin_flash_ddb(struct iscsi_cls_session * cls_sess)5146 static void qla4xxx_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)
5147 {
5148 uint16_t relogin_timer;
5149 struct iscsi_session *sess;
5150 struct ddb_entry *ddb_entry;
5151 struct scsi_qla_host *ha;
5152
5153 sess = cls_sess->dd_data;
5154 ddb_entry = sess->dd_data;
5155 ha = ddb_entry->ha;
5156
5157 relogin_timer = max(ddb_entry->default_relogin_timeout,
5158 (uint16_t)RELOGIN_TOV);
5159 atomic_set(&ddb_entry->relogin_timer, relogin_timer);
5160
5161 DEBUG2(ql4_printk(KERN_INFO, ha,
5162 "scsi%ld: Relogin index [%d]. TOV=%d\n", ha->host_no,
5163 ddb_entry->fw_ddb_index, relogin_timer));
5164
5165 qla4xxx_login_flash_ddb(cls_sess);
5166 }
5167
qla4xxx_dpc_relogin(struct iscsi_cls_session * cls_sess)5168 static void qla4xxx_dpc_relogin(struct iscsi_cls_session *cls_sess)
5169 {
5170 struct iscsi_session *sess;
5171 struct ddb_entry *ddb_entry;
5172 struct scsi_qla_host *ha;
5173
5174 sess = cls_sess->dd_data;
5175 ddb_entry = sess->dd_data;
5176 ha = ddb_entry->ha;
5177
5178 if (!(ddb_entry->ddb_type == FLASH_DDB))
5179 return;
5180
5181 if (test_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags))
5182 return;
5183
5184 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags) &&
5185 !iscsi_is_session_online(cls_sess)) {
5186 DEBUG2(ql4_printk(KERN_INFO, ha,
5187 "relogin issued\n"));
5188 qla4xxx_relogin_flash_ddb(cls_sess);
5189 }
5190 }
5191
qla4xxx_wake_dpc(struct scsi_qla_host * ha)5192 void qla4xxx_wake_dpc(struct scsi_qla_host *ha)
5193 {
5194 if (ha->dpc_thread)
5195 queue_work(ha->dpc_thread, &ha->dpc_work);
5196 }
5197
5198 static struct qla4_work_evt *
qla4xxx_alloc_work(struct scsi_qla_host * ha,uint32_t data_size,enum qla4_work_type type)5199 qla4xxx_alloc_work(struct scsi_qla_host *ha, uint32_t data_size,
5200 enum qla4_work_type type)
5201 {
5202 struct qla4_work_evt *e;
5203 uint32_t size = sizeof(struct qla4_work_evt) + data_size;
5204
5205 e = kzalloc(size, GFP_ATOMIC);
5206 if (!e)
5207 return NULL;
5208
5209 INIT_LIST_HEAD(&e->list);
5210 e->type = type;
5211 return e;
5212 }
5213
qla4xxx_post_work(struct scsi_qla_host * ha,struct qla4_work_evt * e)5214 static void qla4xxx_post_work(struct scsi_qla_host *ha,
5215 struct qla4_work_evt *e)
5216 {
5217 unsigned long flags;
5218
5219 spin_lock_irqsave(&ha->work_lock, flags);
5220 list_add_tail(&e->list, &ha->work_list);
5221 spin_unlock_irqrestore(&ha->work_lock, flags);
5222 qla4xxx_wake_dpc(ha);
5223 }
5224
qla4xxx_post_aen_work(struct scsi_qla_host * ha,enum iscsi_host_event_code aen_code,uint32_t data_size,uint8_t * data)5225 int qla4xxx_post_aen_work(struct scsi_qla_host *ha,
5226 enum iscsi_host_event_code aen_code,
5227 uint32_t data_size, uint8_t *data)
5228 {
5229 struct qla4_work_evt *e;
5230
5231 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_AEN);
5232 if (!e)
5233 return QLA_ERROR;
5234
5235 e->u.aen.code = aen_code;
5236 e->u.aen.data_size = data_size;
5237 memcpy(e->u.aen.data, data, data_size);
5238
5239 qla4xxx_post_work(ha, e);
5240
5241 return QLA_SUCCESS;
5242 }
5243
qla4xxx_post_ping_evt_work(struct scsi_qla_host * ha,uint32_t status,uint32_t pid,uint32_t data_size,uint8_t * data)5244 int qla4xxx_post_ping_evt_work(struct scsi_qla_host *ha,
5245 uint32_t status, uint32_t pid,
5246 uint32_t data_size, uint8_t *data)
5247 {
5248 struct qla4_work_evt *e;
5249
5250 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_PING_STATUS);
5251 if (!e)
5252 return QLA_ERROR;
5253
5254 e->u.ping.status = status;
5255 e->u.ping.pid = pid;
5256 e->u.ping.data_size = data_size;
5257 memcpy(e->u.ping.data, data, data_size);
5258
5259 qla4xxx_post_work(ha, e);
5260
5261 return QLA_SUCCESS;
5262 }
5263
qla4xxx_do_work(struct scsi_qla_host * ha)5264 static void qla4xxx_do_work(struct scsi_qla_host *ha)
5265 {
5266 struct qla4_work_evt *e, *tmp;
5267 unsigned long flags;
5268 LIST_HEAD(work);
5269
5270 spin_lock_irqsave(&ha->work_lock, flags);
5271 list_splice_init(&ha->work_list, &work);
5272 spin_unlock_irqrestore(&ha->work_lock, flags);
5273
5274 list_for_each_entry_safe(e, tmp, &work, list) {
5275 list_del_init(&e->list);
5276
5277 switch (e->type) {
5278 case QLA4_EVENT_AEN:
5279 iscsi_post_host_event(ha->host_no,
5280 &qla4xxx_iscsi_transport,
5281 e->u.aen.code,
5282 e->u.aen.data_size,
5283 e->u.aen.data);
5284 break;
5285 case QLA4_EVENT_PING_STATUS:
5286 iscsi_ping_comp_event(ha->host_no,
5287 &qla4xxx_iscsi_transport,
5288 e->u.ping.status,
5289 e->u.ping.pid,
5290 e->u.ping.data_size,
5291 e->u.ping.data);
5292 break;
5293 default:
5294 ql4_printk(KERN_WARNING, ha, "event type: 0x%x not "
5295 "supported", e->type);
5296 }
5297 kfree(e);
5298 }
5299 }
5300
5301 /**
5302 * qla4xxx_do_dpc - dpc routine
5303 * @work: Context to obtain pointer to host adapter structure.
5304 *
5305 * This routine is a task that is schedule by the interrupt handler
5306 * to perform the background processing for interrupts. We put it
5307 * on a task queue that is consumed whenever the scheduler runs; that's
5308 * so you can do anything (i.e. put the process to sleep etc). In fact,
5309 * the mid-level tries to sleep when it reaches the driver threshold
5310 * "host->can_queue". This can cause a panic if we were in our interrupt code.
5311 **/
qla4xxx_do_dpc(struct work_struct * work)5312 static void qla4xxx_do_dpc(struct work_struct *work)
5313 {
5314 struct scsi_qla_host *ha =
5315 container_of(work, struct scsi_qla_host, dpc_work);
5316 int status = QLA_ERROR;
5317
5318 DEBUG2(ql4_printk(KERN_INFO, ha,
5319 "scsi%ld: %s: DPC handler waking up. flags = 0x%08lx, dpc_flags = 0x%08lx\n",
5320 ha->host_no, __func__, ha->flags, ha->dpc_flags));
5321
5322 /* Initialization not yet finished. Don't do anything yet. */
5323 if (!test_bit(AF_INIT_DONE, &ha->flags))
5324 return;
5325
5326 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
5327 DEBUG2(printk(KERN_INFO "scsi%ld: %s: flags = %lx\n",
5328 ha->host_no, __func__, ha->flags));
5329 return;
5330 }
5331
5332 /* post events to application */
5333 qla4xxx_do_work(ha);
5334
5335 if (is_qla80XX(ha)) {
5336 if (test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags)) {
5337 if (is_qla8032(ha) || is_qla8042(ha)) {
5338 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
5339 __func__);
5340 /* disable pause frame for ISP83xx */
5341 qla4_83xx_disable_pause(ha);
5342 }
5343
5344 ha->isp_ops->idc_lock(ha);
5345 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
5346 QLA8XXX_DEV_FAILED);
5347 ha->isp_ops->idc_unlock(ha);
5348 ql4_printk(KERN_INFO, ha, "HW State: FAILED\n");
5349 qla4_8xxx_device_state_handler(ha);
5350 }
5351
5352 if (test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags)) {
5353 if (is_qla8042(ha)) {
5354 if (ha->idc_info.info2 &
5355 ENABLE_INTERNAL_LOOPBACK) {
5356 ql4_printk(KERN_INFO, ha, "%s: Disabling ACB\n",
5357 __func__);
5358 status = qla4_84xx_config_acb(ha,
5359 ACB_CONFIG_DISABLE);
5360 if (status != QLA_SUCCESS) {
5361 ql4_printk(KERN_INFO, ha, "%s: ACB config failed\n",
5362 __func__);
5363 }
5364 }
5365 }
5366 qla4_83xx_post_idc_ack(ha);
5367 clear_bit(DPC_POST_IDC_ACK, &ha->dpc_flags);
5368 }
5369
5370 if (is_qla8042(ha) &&
5371 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags)) {
5372 ql4_printk(KERN_INFO, ha, "%s: Restoring ACB\n",
5373 __func__);
5374 if (qla4_84xx_config_acb(ha, ACB_CONFIG_SET) !=
5375 QLA_SUCCESS) {
5376 ql4_printk(KERN_INFO, ha, "%s: ACB config failed ",
5377 __func__);
5378 }
5379 clear_bit(DPC_RESTORE_ACB, &ha->dpc_flags);
5380 }
5381
5382 if (test_and_clear_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) {
5383 qla4_8xxx_need_qsnt_handler(ha);
5384 }
5385 }
5386
5387 if (!test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) &&
5388 (test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
5389 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
5390 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))) {
5391 if ((is_qla8022(ha) && ql4xdontresethba) ||
5392 ((is_qla8032(ha) || is_qla8042(ha)) &&
5393 qla4_83xx_idc_dontreset(ha))) {
5394 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n",
5395 ha->host_no, __func__));
5396 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
5397 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags);
5398 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
5399 goto dpc_post_reset_ha;
5400 }
5401 if (test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) ||
5402 test_bit(DPC_RESET_HA, &ha->dpc_flags))
5403 qla4xxx_recover_adapter(ha);
5404
5405 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
5406 uint8_t wait_time = RESET_INTR_TOV;
5407
5408 while ((readw(&ha->reg->ctrl_status) &
5409 (CSR_SOFT_RESET | CSR_FORCE_SOFT_RESET)) != 0) {
5410 if (--wait_time == 0)
5411 break;
5412 msleep(1000);
5413 }
5414 if (wait_time == 0)
5415 DEBUG2(printk("scsi%ld: %s: SR|FSR "
5416 "bit not cleared-- resetting\n",
5417 ha->host_no, __func__));
5418 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
5419 if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS) {
5420 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
5421 status = qla4xxx_recover_adapter(ha);
5422 }
5423 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags);
5424 if (status == QLA_SUCCESS)
5425 ha->isp_ops->enable_intrs(ha);
5426 }
5427 }
5428
5429 dpc_post_reset_ha:
5430 /* ---- process AEN? --- */
5431 if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags))
5432 qla4xxx_process_aen(ha, PROCESS_ALL_AENS);
5433
5434 /* ---- Get DHCP IP Address? --- */
5435 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags))
5436 qla4xxx_get_dhcp_ip_address(ha);
5437
5438 /* ---- relogin device? --- */
5439 if (adapter_up(ha) &&
5440 test_and_clear_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags)) {
5441 iscsi_host_for_each_session(ha->host, qla4xxx_dpc_relogin);
5442 }
5443
5444 /* ---- link change? --- */
5445 if (!test_bit(AF_LOOPBACK, &ha->flags) &&
5446 test_and_clear_bit(DPC_LINK_CHANGED, &ha->dpc_flags)) {
5447 if (!test_bit(AF_LINK_UP, &ha->flags)) {
5448 /* ---- link down? --- */
5449 qla4xxx_mark_all_devices_missing(ha);
5450 } else {
5451 /* ---- link up? --- *
5452 * F/W will auto login to all devices ONLY ONCE after
5453 * link up during driver initialization and runtime
5454 * fatal error recovery. Therefore, the driver must
5455 * manually relogin to devices when recovering from
5456 * connection failures, logouts, expired KATO, etc. */
5457 if (test_and_clear_bit(AF_BUILD_DDB_LIST, &ha->flags)) {
5458 qla4xxx_build_ddb_list(ha, ha->is_reset);
5459 iscsi_host_for_each_session(ha->host,
5460 qla4xxx_login_flash_ddb);
5461 } else
5462 qla4xxx_relogin_all_devices(ha);
5463 }
5464 }
5465 if (test_and_clear_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags)) {
5466 if (qla4xxx_sysfs_ddb_export(ha))
5467 ql4_printk(KERN_ERR, ha, "%s: Error exporting ddb to sysfs\n",
5468 __func__);
5469 }
5470 }
5471
5472 /**
5473 * qla4xxx_free_adapter - release the adapter
5474 * @ha: pointer to adapter structure
5475 **/
qla4xxx_free_adapter(struct scsi_qla_host * ha)5476 static void qla4xxx_free_adapter(struct scsi_qla_host *ha)
5477 {
5478 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
5479
5480 /* Turn-off interrupts on the card. */
5481 ha->isp_ops->disable_intrs(ha);
5482
5483 if (is_qla40XX(ha)) {
5484 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR),
5485 &ha->reg->ctrl_status);
5486 readl(&ha->reg->ctrl_status);
5487 } else if (is_qla8022(ha)) {
5488 writel(0, &ha->qla4_82xx_reg->host_int);
5489 readl(&ha->qla4_82xx_reg->host_int);
5490 } else if (is_qla8032(ha) || is_qla8042(ha)) {
5491 writel(0, &ha->qla4_83xx_reg->risc_intr);
5492 readl(&ha->qla4_83xx_reg->risc_intr);
5493 }
5494
5495 /* Remove timer thread, if present */
5496 if (ha->timer_active)
5497 qla4xxx_stop_timer(ha);
5498
5499 /* Kill the kernel thread for this host */
5500 if (ha->dpc_thread)
5501 destroy_workqueue(ha->dpc_thread);
5502
5503 /* Kill the kernel thread for this host */
5504 if (ha->task_wq)
5505 destroy_workqueue(ha->task_wq);
5506
5507 /* Put firmware in known state */
5508 ha->isp_ops->reset_firmware(ha);
5509
5510 if (is_qla80XX(ha)) {
5511 ha->isp_ops->idc_lock(ha);
5512 qla4_8xxx_clear_drv_active(ha);
5513 ha->isp_ops->idc_unlock(ha);
5514 }
5515
5516 /* Detach interrupts */
5517 qla4xxx_free_irqs(ha);
5518
5519 /* free extra memory */
5520 qla4xxx_mem_free(ha);
5521 }
5522
qla4_8xxx_iospace_config(struct scsi_qla_host * ha)5523 int qla4_8xxx_iospace_config(struct scsi_qla_host *ha)
5524 {
5525 int status = 0;
5526 unsigned long mem_base, mem_len;
5527 struct pci_dev *pdev = ha->pdev;
5528
5529 status = pci_request_regions(pdev, DRIVER_NAME);
5530 if (status) {
5531 printk(KERN_WARNING
5532 "scsi(%ld) Failed to reserve PIO regions (%s) "
5533 "status=%d\n", ha->host_no, pci_name(pdev), status);
5534 goto iospace_error_exit;
5535 }
5536
5537 DEBUG2(printk(KERN_INFO "%s: revision-id=%d\n",
5538 __func__, pdev->revision));
5539 ha->revision_id = pdev->revision;
5540
5541 /* remap phys address */
5542 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
5543 mem_len = pci_resource_len(pdev, 0);
5544 DEBUG2(printk(KERN_INFO "%s: ioremap from %lx a size of %lx\n",
5545 __func__, mem_base, mem_len));
5546
5547 /* mapping of pcibase pointer */
5548 ha->nx_pcibase = (unsigned long)ioremap(mem_base, mem_len);
5549 if (!ha->nx_pcibase) {
5550 printk(KERN_ERR
5551 "cannot remap MMIO (%s), aborting\n", pci_name(pdev));
5552 pci_release_regions(ha->pdev);
5553 goto iospace_error_exit;
5554 }
5555
5556 /* Mapping of IO base pointer, door bell read and write pointer */
5557
5558 /* mapping of IO base pointer */
5559 if (is_qla8022(ha)) {
5560 ha->qla4_82xx_reg = (struct device_reg_82xx __iomem *)
5561 ((uint8_t *)ha->nx_pcibase + 0xbc000 +
5562 (ha->pdev->devfn << 11));
5563 ha->nx_db_wr_ptr = (ha->pdev->devfn == 4 ? QLA82XX_CAM_RAM_DB1 :
5564 QLA82XX_CAM_RAM_DB2);
5565 } else if (is_qla8032(ha) || is_qla8042(ha)) {
5566 ha->qla4_83xx_reg = (struct device_reg_83xx __iomem *)
5567 ((uint8_t *)ha->nx_pcibase);
5568 }
5569
5570 return 0;
5571 iospace_error_exit:
5572 return -ENOMEM;
5573 }
5574
5575 /***
5576 * qla4xxx_iospace_config - maps registers
5577 * @ha: pointer to adapter structure
5578 *
5579 * This routines maps HBA's registers from the pci address space
5580 * into the kernel virtual address space for memory mapped i/o.
5581 **/
qla4xxx_iospace_config(struct scsi_qla_host * ha)5582 int qla4xxx_iospace_config(struct scsi_qla_host *ha)
5583 {
5584 unsigned long pio, pio_len, pio_flags;
5585 unsigned long mmio, mmio_len, mmio_flags;
5586
5587 pio = pci_resource_start(ha->pdev, 0);
5588 pio_len = pci_resource_len(ha->pdev, 0);
5589 pio_flags = pci_resource_flags(ha->pdev, 0);
5590 if (pio_flags & IORESOURCE_IO) {
5591 if (pio_len < MIN_IOBASE_LEN) {
5592 ql4_printk(KERN_WARNING, ha,
5593 "Invalid PCI I/O region size\n");
5594 pio = 0;
5595 }
5596 } else {
5597 ql4_printk(KERN_WARNING, ha, "region #0 not a PIO resource\n");
5598 pio = 0;
5599 }
5600
5601 /* Use MMIO operations for all accesses. */
5602 mmio = pci_resource_start(ha->pdev, 1);
5603 mmio_len = pci_resource_len(ha->pdev, 1);
5604 mmio_flags = pci_resource_flags(ha->pdev, 1);
5605
5606 if (!(mmio_flags & IORESOURCE_MEM)) {
5607 ql4_printk(KERN_ERR, ha,
5608 "region #0 not an MMIO resource, aborting\n");
5609
5610 goto iospace_error_exit;
5611 }
5612
5613 if (mmio_len < MIN_IOBASE_LEN) {
5614 ql4_printk(KERN_ERR, ha,
5615 "Invalid PCI mem region size, aborting\n");
5616 goto iospace_error_exit;
5617 }
5618
5619 if (pci_request_regions(ha->pdev, DRIVER_NAME)) {
5620 ql4_printk(KERN_WARNING, ha,
5621 "Failed to reserve PIO/MMIO regions\n");
5622
5623 goto iospace_error_exit;
5624 }
5625
5626 ha->pio_address = pio;
5627 ha->pio_length = pio_len;
5628 ha->reg = ioremap(mmio, MIN_IOBASE_LEN);
5629 if (!ha->reg) {
5630 ql4_printk(KERN_ERR, ha,
5631 "cannot remap MMIO, aborting\n");
5632
5633 goto iospace_error_exit;
5634 }
5635
5636 return 0;
5637
5638 iospace_error_exit:
5639 return -ENOMEM;
5640 }
5641
5642 static struct isp_operations qla4xxx_isp_ops = {
5643 .iospace_config = qla4xxx_iospace_config,
5644 .pci_config = qla4xxx_pci_config,
5645 .disable_intrs = qla4xxx_disable_intrs,
5646 .enable_intrs = qla4xxx_enable_intrs,
5647 .start_firmware = qla4xxx_start_firmware,
5648 .intr_handler = qla4xxx_intr_handler,
5649 .interrupt_service_routine = qla4xxx_interrupt_service_routine,
5650 .reset_chip = qla4xxx_soft_reset,
5651 .reset_firmware = qla4xxx_hw_reset,
5652 .queue_iocb = qla4xxx_queue_iocb,
5653 .complete_iocb = qla4xxx_complete_iocb,
5654 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out,
5655 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in,
5656 .get_sys_info = qla4xxx_get_sys_info,
5657 .queue_mailbox_command = qla4xxx_queue_mbox_cmd,
5658 .process_mailbox_interrupt = qla4xxx_process_mbox_intr,
5659 };
5660
5661 static struct isp_operations qla4_82xx_isp_ops = {
5662 .iospace_config = qla4_8xxx_iospace_config,
5663 .pci_config = qla4_8xxx_pci_config,
5664 .disable_intrs = qla4_82xx_disable_intrs,
5665 .enable_intrs = qla4_82xx_enable_intrs,
5666 .start_firmware = qla4_8xxx_load_risc,
5667 .restart_firmware = qla4_82xx_try_start_fw,
5668 .intr_handler = qla4_82xx_intr_handler,
5669 .interrupt_service_routine = qla4_82xx_interrupt_service_routine,
5670 .need_reset = qla4_8xxx_need_reset,
5671 .reset_chip = qla4_82xx_isp_reset,
5672 .reset_firmware = qla4_8xxx_stop_firmware,
5673 .queue_iocb = qla4_82xx_queue_iocb,
5674 .complete_iocb = qla4_82xx_complete_iocb,
5675 .rd_shdw_req_q_out = qla4_82xx_rd_shdw_req_q_out,
5676 .rd_shdw_rsp_q_in = qla4_82xx_rd_shdw_rsp_q_in,
5677 .get_sys_info = qla4_8xxx_get_sys_info,
5678 .rd_reg_direct = qla4_82xx_rd_32,
5679 .wr_reg_direct = qla4_82xx_wr_32,
5680 .rd_reg_indirect = qla4_82xx_md_rd_32,
5681 .wr_reg_indirect = qla4_82xx_md_wr_32,
5682 .idc_lock = qla4_82xx_idc_lock,
5683 .idc_unlock = qla4_82xx_idc_unlock,
5684 .rom_lock_recovery = qla4_82xx_rom_lock_recovery,
5685 .queue_mailbox_command = qla4_82xx_queue_mbox_cmd,
5686 .process_mailbox_interrupt = qla4_82xx_process_mbox_intr,
5687 };
5688
5689 static struct isp_operations qla4_83xx_isp_ops = {
5690 .iospace_config = qla4_8xxx_iospace_config,
5691 .pci_config = qla4_8xxx_pci_config,
5692 .disable_intrs = qla4_83xx_disable_intrs,
5693 .enable_intrs = qla4_83xx_enable_intrs,
5694 .start_firmware = qla4_8xxx_load_risc,
5695 .restart_firmware = qla4_83xx_start_firmware,
5696 .intr_handler = qla4_83xx_intr_handler,
5697 .interrupt_service_routine = qla4_83xx_interrupt_service_routine,
5698 .need_reset = qla4_8xxx_need_reset,
5699 .reset_chip = qla4_83xx_isp_reset,
5700 .reset_firmware = qla4_8xxx_stop_firmware,
5701 .queue_iocb = qla4_83xx_queue_iocb,
5702 .complete_iocb = qla4_83xx_complete_iocb,
5703 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out,
5704 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in,
5705 .get_sys_info = qla4_8xxx_get_sys_info,
5706 .rd_reg_direct = qla4_83xx_rd_reg,
5707 .wr_reg_direct = qla4_83xx_wr_reg,
5708 .rd_reg_indirect = qla4_83xx_rd_reg_indirect,
5709 .wr_reg_indirect = qla4_83xx_wr_reg_indirect,
5710 .idc_lock = qla4_83xx_drv_lock,
5711 .idc_unlock = qla4_83xx_drv_unlock,
5712 .rom_lock_recovery = qla4_83xx_rom_lock_recovery,
5713 .queue_mailbox_command = qla4_83xx_queue_mbox_cmd,
5714 .process_mailbox_interrupt = qla4_83xx_process_mbox_intr,
5715 };
5716
qla4xxx_rd_shdw_req_q_out(struct scsi_qla_host * ha)5717 uint16_t qla4xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha)
5718 {
5719 return (uint16_t)le32_to_cpu(ha->shadow_regs->req_q_out);
5720 }
5721
qla4_82xx_rd_shdw_req_q_out(struct scsi_qla_host * ha)5722 uint16_t qla4_82xx_rd_shdw_req_q_out(struct scsi_qla_host *ha)
5723 {
5724 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->req_q_out));
5725 }
5726
qla4xxx_rd_shdw_rsp_q_in(struct scsi_qla_host * ha)5727 uint16_t qla4xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha)
5728 {
5729 return (uint16_t)le32_to_cpu(ha->shadow_regs->rsp_q_in);
5730 }
5731
qla4_82xx_rd_shdw_rsp_q_in(struct scsi_qla_host * ha)5732 uint16_t qla4_82xx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha)
5733 {
5734 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->rsp_q_in));
5735 }
5736
qla4xxx_show_boot_eth_info(void * data,int type,char * buf)5737 static ssize_t qla4xxx_show_boot_eth_info(void *data, int type, char *buf)
5738 {
5739 struct scsi_qla_host *ha = data;
5740 char *str = buf;
5741 int rc;
5742
5743 switch (type) {
5744 case ISCSI_BOOT_ETH_FLAGS:
5745 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT);
5746 break;
5747 case ISCSI_BOOT_ETH_INDEX:
5748 rc = sprintf(str, "0\n");
5749 break;
5750 case ISCSI_BOOT_ETH_MAC:
5751 rc = sysfs_format_mac(str, ha->my_mac,
5752 MAC_ADDR_LEN);
5753 break;
5754 default:
5755 rc = -ENOSYS;
5756 break;
5757 }
5758 return rc;
5759 }
5760
qla4xxx_eth_get_attr_visibility(void * data,int type)5761 static umode_t qla4xxx_eth_get_attr_visibility(void *data, int type)
5762 {
5763 int rc;
5764
5765 switch (type) {
5766 case ISCSI_BOOT_ETH_FLAGS:
5767 case ISCSI_BOOT_ETH_MAC:
5768 case ISCSI_BOOT_ETH_INDEX:
5769 rc = S_IRUGO;
5770 break;
5771 default:
5772 rc = 0;
5773 break;
5774 }
5775 return rc;
5776 }
5777
qla4xxx_show_boot_ini_info(void * data,int type,char * buf)5778 static ssize_t qla4xxx_show_boot_ini_info(void *data, int type, char *buf)
5779 {
5780 struct scsi_qla_host *ha = data;
5781 char *str = buf;
5782 int rc;
5783
5784 switch (type) {
5785 case ISCSI_BOOT_INI_INITIATOR_NAME:
5786 rc = sprintf(str, "%s\n", ha->name_string);
5787 break;
5788 default:
5789 rc = -ENOSYS;
5790 break;
5791 }
5792 return rc;
5793 }
5794
qla4xxx_ini_get_attr_visibility(void * data,int type)5795 static umode_t qla4xxx_ini_get_attr_visibility(void *data, int type)
5796 {
5797 int rc;
5798
5799 switch (type) {
5800 case ISCSI_BOOT_INI_INITIATOR_NAME:
5801 rc = S_IRUGO;
5802 break;
5803 default:
5804 rc = 0;
5805 break;
5806 }
5807 return rc;
5808 }
5809
5810 static ssize_t
qla4xxx_show_boot_tgt_info(struct ql4_boot_session_info * boot_sess,int type,char * buf)5811 qla4xxx_show_boot_tgt_info(struct ql4_boot_session_info *boot_sess, int type,
5812 char *buf)
5813 {
5814 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0];
5815 char *str = buf;
5816 int rc;
5817
5818 switch (type) {
5819 case ISCSI_BOOT_TGT_NAME:
5820 rc = sprintf(buf, "%s\n", (char *)&boot_sess->target_name);
5821 break;
5822 case ISCSI_BOOT_TGT_IP_ADDR:
5823 if (boot_sess->conn_list[0].dest_ipaddr.ip_type == 0x1)
5824 rc = sprintf(buf, "%pI4\n",
5825 &boot_conn->dest_ipaddr.ip_address);
5826 else
5827 rc = sprintf(str, "%pI6\n",
5828 &boot_conn->dest_ipaddr.ip_address);
5829 break;
5830 case ISCSI_BOOT_TGT_PORT:
5831 rc = sprintf(str, "%d\n", boot_conn->dest_port);
5832 break;
5833 case ISCSI_BOOT_TGT_CHAP_NAME:
5834 rc = sprintf(str, "%.*s\n",
5835 boot_conn->chap.target_chap_name_length,
5836 (char *)&boot_conn->chap.target_chap_name);
5837 break;
5838 case ISCSI_BOOT_TGT_CHAP_SECRET:
5839 rc = sprintf(str, "%.*s\n",
5840 boot_conn->chap.target_secret_length,
5841 (char *)&boot_conn->chap.target_secret);
5842 break;
5843 case ISCSI_BOOT_TGT_REV_CHAP_NAME:
5844 rc = sprintf(str, "%.*s\n",
5845 boot_conn->chap.intr_chap_name_length,
5846 (char *)&boot_conn->chap.intr_chap_name);
5847 break;
5848 case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
5849 rc = sprintf(str, "%.*s\n",
5850 boot_conn->chap.intr_secret_length,
5851 (char *)&boot_conn->chap.intr_secret);
5852 break;
5853 case ISCSI_BOOT_TGT_FLAGS:
5854 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT);
5855 break;
5856 case ISCSI_BOOT_TGT_NIC_ASSOC:
5857 rc = sprintf(str, "0\n");
5858 break;
5859 default:
5860 rc = -ENOSYS;
5861 break;
5862 }
5863 return rc;
5864 }
5865
qla4xxx_show_boot_tgt_pri_info(void * data,int type,char * buf)5866 static ssize_t qla4xxx_show_boot_tgt_pri_info(void *data, int type, char *buf)
5867 {
5868 struct scsi_qla_host *ha = data;
5869 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_pri_sess);
5870
5871 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf);
5872 }
5873
qla4xxx_show_boot_tgt_sec_info(void * data,int type,char * buf)5874 static ssize_t qla4xxx_show_boot_tgt_sec_info(void *data, int type, char *buf)
5875 {
5876 struct scsi_qla_host *ha = data;
5877 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_sec_sess);
5878
5879 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf);
5880 }
5881
qla4xxx_tgt_get_attr_visibility(void * data,int type)5882 static umode_t qla4xxx_tgt_get_attr_visibility(void *data, int type)
5883 {
5884 int rc;
5885
5886 switch (type) {
5887 case ISCSI_BOOT_TGT_NAME:
5888 case ISCSI_BOOT_TGT_IP_ADDR:
5889 case ISCSI_BOOT_TGT_PORT:
5890 case ISCSI_BOOT_TGT_CHAP_NAME:
5891 case ISCSI_BOOT_TGT_CHAP_SECRET:
5892 case ISCSI_BOOT_TGT_REV_CHAP_NAME:
5893 case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
5894 case ISCSI_BOOT_TGT_NIC_ASSOC:
5895 case ISCSI_BOOT_TGT_FLAGS:
5896 rc = S_IRUGO;
5897 break;
5898 default:
5899 rc = 0;
5900 break;
5901 }
5902 return rc;
5903 }
5904
qla4xxx_boot_release(void * data)5905 static void qla4xxx_boot_release(void *data)
5906 {
5907 struct scsi_qla_host *ha = data;
5908
5909 scsi_host_put(ha->host);
5910 }
5911
get_fw_boot_info(struct scsi_qla_host * ha,uint16_t ddb_index[])5912 static int get_fw_boot_info(struct scsi_qla_host *ha, uint16_t ddb_index[])
5913 {
5914 dma_addr_t buf_dma;
5915 uint32_t addr, pri_addr, sec_addr;
5916 uint32_t offset;
5917 uint16_t func_num;
5918 uint8_t val;
5919 uint8_t *buf = NULL;
5920 size_t size = 13 * sizeof(uint8_t);
5921 int ret = QLA_SUCCESS;
5922
5923 func_num = PCI_FUNC(ha->pdev->devfn);
5924
5925 ql4_printk(KERN_INFO, ha, "%s: Get FW boot info for 0x%x func %d\n",
5926 __func__, ha->pdev->device, func_num);
5927
5928 if (is_qla40XX(ha)) {
5929 if (func_num == 1) {
5930 addr = NVRAM_PORT0_BOOT_MODE;
5931 pri_addr = NVRAM_PORT0_BOOT_PRI_TGT;
5932 sec_addr = NVRAM_PORT0_BOOT_SEC_TGT;
5933 } else if (func_num == 3) {
5934 addr = NVRAM_PORT1_BOOT_MODE;
5935 pri_addr = NVRAM_PORT1_BOOT_PRI_TGT;
5936 sec_addr = NVRAM_PORT1_BOOT_SEC_TGT;
5937 } else {
5938 ret = QLA_ERROR;
5939 goto exit_boot_info;
5940 }
5941
5942 /* Check Boot Mode */
5943 val = rd_nvram_byte(ha, addr);
5944 if (!(val & 0x07)) {
5945 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Adapter boot "
5946 "options : 0x%x\n", __func__, val));
5947 ret = QLA_ERROR;
5948 goto exit_boot_info;
5949 }
5950
5951 /* get primary valid target index */
5952 val = rd_nvram_byte(ha, pri_addr);
5953 if (val & BIT_7)
5954 ddb_index[0] = (val & 0x7f);
5955
5956 /* get secondary valid target index */
5957 val = rd_nvram_byte(ha, sec_addr);
5958 if (val & BIT_7)
5959 ddb_index[1] = (val & 0x7f);
5960 goto exit_boot_info;
5961 } else if (is_qla80XX(ha)) {
5962 buf = dma_alloc_coherent(&ha->pdev->dev, size,
5963 &buf_dma, GFP_KERNEL);
5964 if (!buf) {
5965 DEBUG2(ql4_printk(KERN_ERR, ha,
5966 "%s: Unable to allocate dma buffer\n",
5967 __func__));
5968 ret = QLA_ERROR;
5969 goto exit_boot_info;
5970 }
5971
5972 if (ha->port_num == 0)
5973 offset = BOOT_PARAM_OFFSET_PORT0;
5974 else if (ha->port_num == 1)
5975 offset = BOOT_PARAM_OFFSET_PORT1;
5976 else {
5977 ret = QLA_ERROR;
5978 goto exit_boot_info_free;
5979 }
5980 addr = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_iscsi_param * 4) +
5981 offset;
5982 if (qla4xxx_get_flash(ha, buf_dma, addr,
5983 13 * sizeof(uint8_t)) != QLA_SUCCESS) {
5984 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: Get Flash"
5985 " failed\n", ha->host_no, __func__));
5986 ret = QLA_ERROR;
5987 goto exit_boot_info_free;
5988 }
5989 /* Check Boot Mode */
5990 if (!(buf[1] & 0x07)) {
5991 DEBUG2(ql4_printk(KERN_INFO, ha, "Firmware boot options"
5992 " : 0x%x\n", buf[1]));
5993 ret = QLA_ERROR;
5994 goto exit_boot_info_free;
5995 }
5996
5997 /* get primary valid target index */
5998 if (buf[2] & BIT_7)
5999 ddb_index[0] = buf[2] & 0x7f;
6000
6001 /* get secondary valid target index */
6002 if (buf[11] & BIT_7)
6003 ddb_index[1] = buf[11] & 0x7f;
6004 } else {
6005 ret = QLA_ERROR;
6006 goto exit_boot_info;
6007 }
6008
6009 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary target ID %d, Secondary"
6010 " target ID %d\n", __func__, ddb_index[0],
6011 ddb_index[1]));
6012
6013 exit_boot_info_free:
6014 dma_free_coherent(&ha->pdev->dev, size, buf, buf_dma);
6015 exit_boot_info:
6016 ha->pri_ddb_idx = ddb_index[0];
6017 ha->sec_ddb_idx = ddb_index[1];
6018 return ret;
6019 }
6020
6021 /**
6022 * qla4xxx_get_bidi_chap - Get a BIDI CHAP user and password
6023 * @ha: pointer to adapter structure
6024 * @username: CHAP username to be returned
6025 * @password: CHAP password to be returned
6026 *
6027 * If a boot entry has BIDI CHAP enabled then we need to set the BIDI CHAP
6028 * user and password in the sysfs entry in /sys/firmware/iscsi_boot#/.
6029 * So from the CHAP cache find the first BIDI CHAP entry and set it
6030 * to the boot record in sysfs.
6031 **/
qla4xxx_get_bidi_chap(struct scsi_qla_host * ha,char * username,char * password)6032 static int qla4xxx_get_bidi_chap(struct scsi_qla_host *ha, char *username,
6033 char *password)
6034 {
6035 int i, ret = -EINVAL;
6036 int max_chap_entries = 0;
6037 struct ql4_chap_table *chap_table;
6038
6039 if (is_qla80XX(ha))
6040 max_chap_entries = (ha->hw.flt_chap_size / 2) /
6041 sizeof(struct ql4_chap_table);
6042 else
6043 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
6044
6045 if (!ha->chap_list) {
6046 ql4_printk(KERN_ERR, ha, "Do not have CHAP table cache\n");
6047 return ret;
6048 }
6049
6050 mutex_lock(&ha->chap_sem);
6051 for (i = 0; i < max_chap_entries; i++) {
6052 chap_table = (struct ql4_chap_table *)ha->chap_list + i;
6053 if (chap_table->cookie !=
6054 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) {
6055 continue;
6056 }
6057
6058 if (chap_table->flags & BIT_7) /* local */
6059 continue;
6060
6061 if (!(chap_table->flags & BIT_6)) /* Not BIDI */
6062 continue;
6063
6064 strlcpy(password, chap_table->secret, QL4_CHAP_MAX_SECRET_LEN);
6065 strlcpy(username, chap_table->name, QL4_CHAP_MAX_NAME_LEN);
6066 ret = 0;
6067 break;
6068 }
6069 mutex_unlock(&ha->chap_sem);
6070
6071 return ret;
6072 }
6073
6074
qla4xxx_get_boot_target(struct scsi_qla_host * ha,struct ql4_boot_session_info * boot_sess,uint16_t ddb_index)6075 static int qla4xxx_get_boot_target(struct scsi_qla_host *ha,
6076 struct ql4_boot_session_info *boot_sess,
6077 uint16_t ddb_index)
6078 {
6079 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0];
6080 struct dev_db_entry *fw_ddb_entry;
6081 dma_addr_t fw_ddb_entry_dma;
6082 uint16_t idx;
6083 uint16_t options;
6084 int ret = QLA_SUCCESS;
6085
6086 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
6087 &fw_ddb_entry_dma, GFP_KERNEL);
6088 if (!fw_ddb_entry) {
6089 DEBUG2(ql4_printk(KERN_ERR, ha,
6090 "%s: Unable to allocate dma buffer.\n",
6091 __func__));
6092 ret = QLA_ERROR;
6093 return ret;
6094 }
6095
6096 if (qla4xxx_bootdb_by_index(ha, fw_ddb_entry,
6097 fw_ddb_entry_dma, ddb_index)) {
6098 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: No Flash DDB found at "
6099 "index [%d]\n", __func__, ddb_index));
6100 ret = QLA_ERROR;
6101 goto exit_boot_target;
6102 }
6103
6104 /* Update target name and IP from DDB */
6105 memcpy(boot_sess->target_name, fw_ddb_entry->iscsi_name,
6106 min(sizeof(boot_sess->target_name),
6107 sizeof(fw_ddb_entry->iscsi_name)));
6108
6109 options = le16_to_cpu(fw_ddb_entry->options);
6110 if (options & DDB_OPT_IPV6_DEVICE) {
6111 memcpy(&boot_conn->dest_ipaddr.ip_address,
6112 &fw_ddb_entry->ip_addr[0], IPv6_ADDR_LEN);
6113 } else {
6114 boot_conn->dest_ipaddr.ip_type = 0x1;
6115 memcpy(&boot_conn->dest_ipaddr.ip_address,
6116 &fw_ddb_entry->ip_addr[0], IP_ADDR_LEN);
6117 }
6118
6119 boot_conn->dest_port = le16_to_cpu(fw_ddb_entry->port);
6120
6121 /* update chap information */
6122 idx = __le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
6123
6124 if (BIT_7 & le16_to_cpu(fw_ddb_entry->iscsi_options)) {
6125
6126 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting chap\n"));
6127
6128 ret = qla4xxx_get_chap(ha, (char *)&boot_conn->chap.
6129 target_chap_name,
6130 (char *)&boot_conn->chap.target_secret,
6131 idx);
6132 if (ret) {
6133 ql4_printk(KERN_ERR, ha, "Failed to set chap\n");
6134 ret = QLA_ERROR;
6135 goto exit_boot_target;
6136 }
6137
6138 boot_conn->chap.target_chap_name_length = QL4_CHAP_MAX_NAME_LEN;
6139 boot_conn->chap.target_secret_length = QL4_CHAP_MAX_SECRET_LEN;
6140 }
6141
6142 if (BIT_4 & le16_to_cpu(fw_ddb_entry->iscsi_options)) {
6143
6144 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting BIDI chap\n"));
6145
6146 ret = qla4xxx_get_bidi_chap(ha,
6147 (char *)&boot_conn->chap.intr_chap_name,
6148 (char *)&boot_conn->chap.intr_secret);
6149
6150 if (ret) {
6151 ql4_printk(KERN_ERR, ha, "Failed to set BIDI chap\n");
6152 ret = QLA_ERROR;
6153 goto exit_boot_target;
6154 }
6155
6156 boot_conn->chap.intr_chap_name_length = QL4_CHAP_MAX_NAME_LEN;
6157 boot_conn->chap.intr_secret_length = QL4_CHAP_MAX_SECRET_LEN;
6158 }
6159
6160 exit_boot_target:
6161 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
6162 fw_ddb_entry, fw_ddb_entry_dma);
6163 return ret;
6164 }
6165
qla4xxx_get_boot_info(struct scsi_qla_host * ha)6166 static int qla4xxx_get_boot_info(struct scsi_qla_host *ha)
6167 {
6168 uint16_t ddb_index[2];
6169 int ret = QLA_ERROR;
6170 int rval;
6171
6172 memset(ddb_index, 0, sizeof(ddb_index));
6173 ddb_index[0] = 0xffff;
6174 ddb_index[1] = 0xffff;
6175 ret = get_fw_boot_info(ha, ddb_index);
6176 if (ret != QLA_SUCCESS) {
6177 DEBUG2(ql4_printk(KERN_INFO, ha,
6178 "%s: No boot target configured.\n", __func__));
6179 return ret;
6180 }
6181
6182 if (ql4xdisablesysfsboot)
6183 return QLA_SUCCESS;
6184
6185 if (ddb_index[0] == 0xffff)
6186 goto sec_target;
6187
6188 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_pri_sess),
6189 ddb_index[0]);
6190 if (rval != QLA_SUCCESS) {
6191 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary boot target not "
6192 "configured\n", __func__));
6193 } else
6194 ret = QLA_SUCCESS;
6195
6196 sec_target:
6197 if (ddb_index[1] == 0xffff)
6198 goto exit_get_boot_info;
6199
6200 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_sec_sess),
6201 ddb_index[1]);
6202 if (rval != QLA_SUCCESS) {
6203 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Secondary boot target not"
6204 " configured\n", __func__));
6205 } else
6206 ret = QLA_SUCCESS;
6207
6208 exit_get_boot_info:
6209 return ret;
6210 }
6211
qla4xxx_setup_boot_info(struct scsi_qla_host * ha)6212 static int qla4xxx_setup_boot_info(struct scsi_qla_host *ha)
6213 {
6214 struct iscsi_boot_kobj *boot_kobj;
6215
6216 if (qla4xxx_get_boot_info(ha) != QLA_SUCCESS)
6217 return QLA_ERROR;
6218
6219 if (ql4xdisablesysfsboot) {
6220 ql4_printk(KERN_INFO, ha,
6221 "%s: syfsboot disabled - driver will trigger login "
6222 "and publish session for discovery .\n", __func__);
6223 return QLA_SUCCESS;
6224 }
6225
6226
6227 ha->boot_kset = iscsi_boot_create_host_kset(ha->host->host_no);
6228 if (!ha->boot_kset)
6229 goto kset_free;
6230
6231 if (!scsi_host_get(ha->host))
6232 goto kset_free;
6233 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 0, ha,
6234 qla4xxx_show_boot_tgt_pri_info,
6235 qla4xxx_tgt_get_attr_visibility,
6236 qla4xxx_boot_release);
6237 if (!boot_kobj)
6238 goto put_host;
6239
6240 if (!scsi_host_get(ha->host))
6241 goto kset_free;
6242 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 1, ha,
6243 qla4xxx_show_boot_tgt_sec_info,
6244 qla4xxx_tgt_get_attr_visibility,
6245 qla4xxx_boot_release);
6246 if (!boot_kobj)
6247 goto put_host;
6248
6249 if (!scsi_host_get(ha->host))
6250 goto kset_free;
6251 boot_kobj = iscsi_boot_create_initiator(ha->boot_kset, 0, ha,
6252 qla4xxx_show_boot_ini_info,
6253 qla4xxx_ini_get_attr_visibility,
6254 qla4xxx_boot_release);
6255 if (!boot_kobj)
6256 goto put_host;
6257
6258 if (!scsi_host_get(ha->host))
6259 goto kset_free;
6260 boot_kobj = iscsi_boot_create_ethernet(ha->boot_kset, 0, ha,
6261 qla4xxx_show_boot_eth_info,
6262 qla4xxx_eth_get_attr_visibility,
6263 qla4xxx_boot_release);
6264 if (!boot_kobj)
6265 goto put_host;
6266
6267 return QLA_SUCCESS;
6268
6269 put_host:
6270 scsi_host_put(ha->host);
6271 kset_free:
6272 iscsi_boot_destroy_kset(ha->boot_kset);
6273 return -ENOMEM;
6274 }
6275
6276
qla4xxx_get_param_ddb(struct ddb_entry * ddb_entry,struct ql4_tuple_ddb * tddb)6277 static void qla4xxx_get_param_ddb(struct ddb_entry *ddb_entry,
6278 struct ql4_tuple_ddb *tddb)
6279 {
6280 struct iscsi_cls_session *cls_sess;
6281 struct iscsi_cls_conn *cls_conn;
6282 struct iscsi_session *sess;
6283 struct iscsi_conn *conn;
6284
6285 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
6286 cls_sess = ddb_entry->sess;
6287 sess = cls_sess->dd_data;
6288 cls_conn = ddb_entry->conn;
6289 conn = cls_conn->dd_data;
6290
6291 tddb->tpgt = sess->tpgt;
6292 tddb->port = conn->persistent_port;
6293 strlcpy(tddb->iscsi_name, sess->targetname, ISCSI_NAME_SIZE);
6294 strlcpy(tddb->ip_addr, conn->persistent_address, DDB_IPADDR_LEN);
6295 }
6296
qla4xxx_convert_param_ddb(struct dev_db_entry * fw_ddb_entry,struct ql4_tuple_ddb * tddb,uint8_t * flash_isid)6297 static void qla4xxx_convert_param_ddb(struct dev_db_entry *fw_ddb_entry,
6298 struct ql4_tuple_ddb *tddb,
6299 uint8_t *flash_isid)
6300 {
6301 uint16_t options = 0;
6302
6303 tddb->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
6304 memcpy(&tddb->iscsi_name[0], &fw_ddb_entry->iscsi_name[0],
6305 min(sizeof(tddb->iscsi_name), sizeof(fw_ddb_entry->iscsi_name)));
6306
6307 options = le16_to_cpu(fw_ddb_entry->options);
6308 if (options & DDB_OPT_IPV6_DEVICE)
6309 sprintf(tddb->ip_addr, "%pI6", fw_ddb_entry->ip_addr);
6310 else
6311 sprintf(tddb->ip_addr, "%pI4", fw_ddb_entry->ip_addr);
6312
6313 tddb->port = le16_to_cpu(fw_ddb_entry->port);
6314
6315 if (flash_isid == NULL)
6316 memcpy(&tddb->isid[0], &fw_ddb_entry->isid[0],
6317 sizeof(tddb->isid));
6318 else
6319 memcpy(&tddb->isid[0], &flash_isid[0], sizeof(tddb->isid));
6320 }
6321
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)6322 static int qla4xxx_compare_tuple_ddb(struct scsi_qla_host *ha,
6323 struct ql4_tuple_ddb *old_tddb,
6324 struct ql4_tuple_ddb *new_tddb,
6325 uint8_t is_isid_compare)
6326 {
6327 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name))
6328 return QLA_ERROR;
6329
6330 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr))
6331 return QLA_ERROR;
6332
6333 if (old_tddb->port != new_tddb->port)
6334 return QLA_ERROR;
6335
6336 /* For multi sessions, driver generates the ISID, so do not compare
6337 * ISID in reset path since it would be a comparison between the
6338 * driver generated ISID and firmware generated ISID. This could
6339 * lead to adding duplicated DDBs in the list as driver generated
6340 * ISID would not match firmware generated ISID.
6341 */
6342 if (is_isid_compare) {
6343 DEBUG2(ql4_printk(KERN_INFO, ha,
6344 "%s: old ISID [%pmR] New ISID [%pmR]\n",
6345 __func__, old_tddb->isid, new_tddb->isid));
6346
6347 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0],
6348 sizeof(old_tddb->isid)))
6349 return QLA_ERROR;
6350 }
6351
6352 DEBUG2(ql4_printk(KERN_INFO, ha,
6353 "Match Found, fw[%d,%d,%s,%s], [%d,%d,%s,%s]",
6354 old_tddb->port, old_tddb->tpgt, old_tddb->ip_addr,
6355 old_tddb->iscsi_name, new_tddb->port, new_tddb->tpgt,
6356 new_tddb->ip_addr, new_tddb->iscsi_name));
6357
6358 return QLA_SUCCESS;
6359 }
6360
qla4xxx_is_session_exists(struct scsi_qla_host * ha,struct dev_db_entry * fw_ddb_entry,uint32_t * index)6361 static int qla4xxx_is_session_exists(struct scsi_qla_host *ha,
6362 struct dev_db_entry *fw_ddb_entry,
6363 uint32_t *index)
6364 {
6365 struct ddb_entry *ddb_entry;
6366 struct ql4_tuple_ddb *fw_tddb = NULL;
6367 struct ql4_tuple_ddb *tmp_tddb = NULL;
6368 int idx;
6369 int ret = QLA_ERROR;
6370
6371 fw_tddb = vzalloc(sizeof(*fw_tddb));
6372 if (!fw_tddb) {
6373 DEBUG2(ql4_printk(KERN_WARNING, ha,
6374 "Memory Allocation failed.\n"));
6375 ret = QLA_SUCCESS;
6376 goto exit_check;
6377 }
6378
6379 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
6380 if (!tmp_tddb) {
6381 DEBUG2(ql4_printk(KERN_WARNING, ha,
6382 "Memory Allocation failed.\n"));
6383 ret = QLA_SUCCESS;
6384 goto exit_check;
6385 }
6386
6387 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL);
6388
6389 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
6390 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
6391 if (ddb_entry == NULL)
6392 continue;
6393
6394 qla4xxx_get_param_ddb(ddb_entry, tmp_tddb);
6395 if (!qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, false)) {
6396 ret = QLA_SUCCESS; /* found */
6397 if (index != NULL)
6398 *index = idx;
6399 goto exit_check;
6400 }
6401 }
6402
6403 exit_check:
6404 if (fw_tddb)
6405 vfree(fw_tddb);
6406 if (tmp_tddb)
6407 vfree(tmp_tddb);
6408 return ret;
6409 }
6410
6411 /**
6412 * qla4xxx_check_existing_isid - check if target with same isid exist
6413 * in target list
6414 * @list_nt: list of target
6415 * @isid: isid to check
6416 *
6417 * This routine return QLA_SUCCESS if target with same isid exist
6418 **/
qla4xxx_check_existing_isid(struct list_head * list_nt,uint8_t * isid)6419 static int qla4xxx_check_existing_isid(struct list_head *list_nt, uint8_t *isid)
6420 {
6421 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp;
6422 struct dev_db_entry *fw_ddb_entry;
6423
6424 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
6425 fw_ddb_entry = &nt_ddb_idx->fw_ddb;
6426
6427 if (memcmp(&fw_ddb_entry->isid[0], &isid[0],
6428 sizeof(nt_ddb_idx->fw_ddb.isid)) == 0) {
6429 return QLA_SUCCESS;
6430 }
6431 }
6432 return QLA_ERROR;
6433 }
6434
6435 /**
6436 * qla4xxx_update_isid - compare ddbs and updated isid
6437 * @ha: Pointer to host adapter structure.
6438 * @list_nt: list of nt target
6439 * @fw_ddb_entry: firmware ddb entry
6440 *
6441 * This routine update isid if ddbs have same iqn, same isid and
6442 * different IP addr.
6443 * Return QLA_SUCCESS if isid is updated.
6444 **/
qla4xxx_update_isid(struct scsi_qla_host * ha,struct list_head * list_nt,struct dev_db_entry * fw_ddb_entry)6445 static int qla4xxx_update_isid(struct scsi_qla_host *ha,
6446 struct list_head *list_nt,
6447 struct dev_db_entry *fw_ddb_entry)
6448 {
6449 uint8_t base_value, i;
6450
6451 base_value = fw_ddb_entry->isid[1] & 0x1f;
6452 for (i = 0; i < 8; i++) {
6453 fw_ddb_entry->isid[1] = (base_value | (i << 5));
6454 if (qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid))
6455 break;
6456 }
6457
6458 if (!qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid))
6459 return QLA_ERROR;
6460
6461 return QLA_SUCCESS;
6462 }
6463
6464 /**
6465 * qla4xxx_should_update_isid - check if isid need to update
6466 * @ha: Pointer to host adapter structure.
6467 * @old_tddb: ddb tuple
6468 * @new_tddb: ddb tuple
6469 *
6470 * Return QLA_SUCCESS if different IP, different PORT, same iqn,
6471 * same isid
6472 **/
qla4xxx_should_update_isid(struct scsi_qla_host * ha,struct ql4_tuple_ddb * old_tddb,struct ql4_tuple_ddb * new_tddb)6473 static int qla4xxx_should_update_isid(struct scsi_qla_host *ha,
6474 struct ql4_tuple_ddb *old_tddb,
6475 struct ql4_tuple_ddb *new_tddb)
6476 {
6477 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr) == 0) {
6478 /* Same ip */
6479 if (old_tddb->port == new_tddb->port)
6480 return QLA_ERROR;
6481 }
6482
6483 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name))
6484 /* different iqn */
6485 return QLA_ERROR;
6486
6487 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0],
6488 sizeof(old_tddb->isid)))
6489 /* different isid */
6490 return QLA_ERROR;
6491
6492 return QLA_SUCCESS;
6493 }
6494
6495 /**
6496 * qla4xxx_is_flash_ddb_exists - check if fw_ddb_entry already exists in list_nt
6497 * @ha: Pointer to host adapter structure.
6498 * @list_nt: list of nt target.
6499 * @fw_ddb_entry: firmware ddb entry.
6500 *
6501 * This routine check if fw_ddb_entry already exists in list_nt to avoid
6502 * duplicate ddb in list_nt.
6503 * Return QLA_SUCCESS if duplicate ddb exit in list_nl.
6504 * Note: This function also update isid of DDB if required.
6505 **/
6506
qla4xxx_is_flash_ddb_exists(struct scsi_qla_host * ha,struct list_head * list_nt,struct dev_db_entry * fw_ddb_entry)6507 static int qla4xxx_is_flash_ddb_exists(struct scsi_qla_host *ha,
6508 struct list_head *list_nt,
6509 struct dev_db_entry *fw_ddb_entry)
6510 {
6511 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp;
6512 struct ql4_tuple_ddb *fw_tddb = NULL;
6513 struct ql4_tuple_ddb *tmp_tddb = NULL;
6514 int rval, ret = QLA_ERROR;
6515
6516 fw_tddb = vzalloc(sizeof(*fw_tddb));
6517 if (!fw_tddb) {
6518 DEBUG2(ql4_printk(KERN_WARNING, ha,
6519 "Memory Allocation failed.\n"));
6520 ret = QLA_SUCCESS;
6521 goto exit_check;
6522 }
6523
6524 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
6525 if (!tmp_tddb) {
6526 DEBUG2(ql4_printk(KERN_WARNING, ha,
6527 "Memory Allocation failed.\n"));
6528 ret = QLA_SUCCESS;
6529 goto exit_check;
6530 }
6531
6532 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL);
6533
6534 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
6535 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb,
6536 nt_ddb_idx->flash_isid);
6537 ret = qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, true);
6538 /* found duplicate ddb */
6539 if (ret == QLA_SUCCESS)
6540 goto exit_check;
6541 }
6542
6543 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
6544 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb, NULL);
6545
6546 ret = qla4xxx_should_update_isid(ha, tmp_tddb, fw_tddb);
6547 if (ret == QLA_SUCCESS) {
6548 rval = qla4xxx_update_isid(ha, list_nt, fw_ddb_entry);
6549 if (rval == QLA_SUCCESS)
6550 ret = QLA_ERROR;
6551 else
6552 ret = QLA_SUCCESS;
6553
6554 goto exit_check;
6555 }
6556 }
6557
6558 exit_check:
6559 if (fw_tddb)
6560 vfree(fw_tddb);
6561 if (tmp_tddb)
6562 vfree(tmp_tddb);
6563 return ret;
6564 }
6565
qla4xxx_free_ddb_list(struct list_head * list_ddb)6566 static void qla4xxx_free_ddb_list(struct list_head *list_ddb)
6567 {
6568 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
6569
6570 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
6571 list_del_init(&ddb_idx->list);
6572 vfree(ddb_idx);
6573 }
6574 }
6575
qla4xxx_get_ep_fwdb(struct scsi_qla_host * ha,struct dev_db_entry * fw_ddb_entry)6576 static struct iscsi_endpoint *qla4xxx_get_ep_fwdb(struct scsi_qla_host *ha,
6577 struct dev_db_entry *fw_ddb_entry)
6578 {
6579 struct iscsi_endpoint *ep;
6580 struct sockaddr_in *addr;
6581 struct sockaddr_in6 *addr6;
6582 struct sockaddr *t_addr;
6583 struct sockaddr_storage *dst_addr;
6584 char *ip;
6585
6586 /* TODO: need to destroy on unload iscsi_endpoint*/
6587 dst_addr = vmalloc(sizeof(*dst_addr));
6588 if (!dst_addr)
6589 return NULL;
6590
6591 if (fw_ddb_entry->options & DDB_OPT_IPV6_DEVICE) {
6592 t_addr = (struct sockaddr *)dst_addr;
6593 t_addr->sa_family = AF_INET6;
6594 addr6 = (struct sockaddr_in6 *)dst_addr;
6595 ip = (char *)&addr6->sin6_addr;
6596 memcpy(ip, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN);
6597 addr6->sin6_port = htons(le16_to_cpu(fw_ddb_entry->port));
6598
6599 } else {
6600 t_addr = (struct sockaddr *)dst_addr;
6601 t_addr->sa_family = AF_INET;
6602 addr = (struct sockaddr_in *)dst_addr;
6603 ip = (char *)&addr->sin_addr;
6604 memcpy(ip, fw_ddb_entry->ip_addr, IP_ADDR_LEN);
6605 addr->sin_port = htons(le16_to_cpu(fw_ddb_entry->port));
6606 }
6607
6608 ep = qla4xxx_ep_connect(ha->host, (struct sockaddr *)dst_addr, 0);
6609 vfree(dst_addr);
6610 return ep;
6611 }
6612
qla4xxx_verify_boot_idx(struct scsi_qla_host * ha,uint16_t idx)6613 static int qla4xxx_verify_boot_idx(struct scsi_qla_host *ha, uint16_t idx)
6614 {
6615 if (ql4xdisablesysfsboot)
6616 return QLA_SUCCESS;
6617 if (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx)
6618 return QLA_ERROR;
6619 return QLA_SUCCESS;
6620 }
6621
qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host * ha,struct ddb_entry * ddb_entry,uint16_t idx)6622 static void qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha,
6623 struct ddb_entry *ddb_entry,
6624 uint16_t idx)
6625 {
6626 uint16_t def_timeout;
6627
6628 ddb_entry->ddb_type = FLASH_DDB;
6629 ddb_entry->fw_ddb_index = INVALID_ENTRY;
6630 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE;
6631 ddb_entry->ha = ha;
6632 ddb_entry->unblock_sess = qla4xxx_unblock_flash_ddb;
6633 ddb_entry->ddb_change = qla4xxx_flash_ddb_change;
6634 ddb_entry->chap_tbl_idx = INVALID_ENTRY;
6635
6636 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY);
6637 atomic_set(&ddb_entry->relogin_timer, 0);
6638 atomic_set(&ddb_entry->relogin_retry_count, 0);
6639 def_timeout = le16_to_cpu(ddb_entry->fw_ddb_entry.def_timeout);
6640 ddb_entry->default_relogin_timeout =
6641 (def_timeout > LOGIN_TOV) && (def_timeout < LOGIN_TOV * 10) ?
6642 def_timeout : LOGIN_TOV;
6643 ddb_entry->default_time2wait =
6644 le16_to_cpu(ddb_entry->fw_ddb_entry.iscsi_def_time2wait);
6645
6646 if (ql4xdisablesysfsboot &&
6647 (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx))
6648 set_bit(DF_BOOT_TGT, &ddb_entry->flags);
6649 }
6650
qla4xxx_wait_for_ip_configuration(struct scsi_qla_host * ha)6651 static void qla4xxx_wait_for_ip_configuration(struct scsi_qla_host *ha)
6652 {
6653 uint32_t idx = 0;
6654 uint32_t ip_idx[IP_ADDR_COUNT] = {0, 1, 2, 3}; /* 4 IP interfaces */
6655 uint32_t sts[MBOX_REG_COUNT];
6656 uint32_t ip_state;
6657 unsigned long wtime;
6658 int ret;
6659
6660 wtime = jiffies + (HZ * IP_CONFIG_TOV);
6661 do {
6662 for (idx = 0; idx < IP_ADDR_COUNT; idx++) {
6663 if (ip_idx[idx] == -1)
6664 continue;
6665
6666 ret = qla4xxx_get_ip_state(ha, 0, ip_idx[idx], sts);
6667
6668 if (ret == QLA_ERROR) {
6669 ip_idx[idx] = -1;
6670 continue;
6671 }
6672
6673 ip_state = (sts[1] & IP_STATE_MASK) >> IP_STATE_SHIFT;
6674
6675 DEBUG2(ql4_printk(KERN_INFO, ha,
6676 "Waiting for IP state for idx = %d, state = 0x%x\n",
6677 ip_idx[idx], ip_state));
6678 if (ip_state == IP_ADDRSTATE_UNCONFIGURED ||
6679 ip_state == IP_ADDRSTATE_INVALID ||
6680 ip_state == IP_ADDRSTATE_PREFERRED ||
6681 ip_state == IP_ADDRSTATE_DEPRICATED ||
6682 ip_state == IP_ADDRSTATE_DISABLING)
6683 ip_idx[idx] = -1;
6684 }
6685
6686 /* Break if all IP states checked */
6687 if ((ip_idx[0] == -1) &&
6688 (ip_idx[1] == -1) &&
6689 (ip_idx[2] == -1) &&
6690 (ip_idx[3] == -1))
6691 break;
6692 schedule_timeout_uninterruptible(HZ);
6693 } while (time_after(wtime, jiffies));
6694 }
6695
qla4xxx_cmp_fw_stentry(struct dev_db_entry * fw_ddb_entry,struct dev_db_entry * flash_ddb_entry)6696 static int qla4xxx_cmp_fw_stentry(struct dev_db_entry *fw_ddb_entry,
6697 struct dev_db_entry *flash_ddb_entry)
6698 {
6699 uint16_t options = 0;
6700 size_t ip_len = IP_ADDR_LEN;
6701
6702 options = le16_to_cpu(fw_ddb_entry->options);
6703 if (options & DDB_OPT_IPV6_DEVICE)
6704 ip_len = IPv6_ADDR_LEN;
6705
6706 if (memcmp(fw_ddb_entry->ip_addr, flash_ddb_entry->ip_addr, ip_len))
6707 return QLA_ERROR;
6708
6709 if (memcmp(&fw_ddb_entry->isid[0], &flash_ddb_entry->isid[0],
6710 sizeof(fw_ddb_entry->isid)))
6711 return QLA_ERROR;
6712
6713 if (memcmp(&fw_ddb_entry->port, &flash_ddb_entry->port,
6714 sizeof(fw_ddb_entry->port)))
6715 return QLA_ERROR;
6716
6717 return QLA_SUCCESS;
6718 }
6719
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)6720 static int qla4xxx_find_flash_st_idx(struct scsi_qla_host *ha,
6721 struct dev_db_entry *fw_ddb_entry,
6722 uint32_t fw_idx, uint32_t *flash_index)
6723 {
6724 struct dev_db_entry *flash_ddb_entry;
6725 dma_addr_t flash_ddb_entry_dma;
6726 uint32_t idx = 0;
6727 int max_ddbs;
6728 int ret = QLA_ERROR, status;
6729
6730 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
6731 MAX_DEV_DB_ENTRIES;
6732
6733 flash_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
6734 &flash_ddb_entry_dma);
6735 if (flash_ddb_entry == NULL || fw_ddb_entry == NULL) {
6736 ql4_printk(KERN_ERR, ha, "Out of memory\n");
6737 goto exit_find_st_idx;
6738 }
6739
6740 status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry,
6741 flash_ddb_entry_dma, fw_idx);
6742 if (status == QLA_SUCCESS) {
6743 status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry);
6744 if (status == QLA_SUCCESS) {
6745 *flash_index = fw_idx;
6746 ret = QLA_SUCCESS;
6747 goto exit_find_st_idx;
6748 }
6749 }
6750
6751 for (idx = 0; idx < max_ddbs; idx++) {
6752 status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry,
6753 flash_ddb_entry_dma, idx);
6754 if (status == QLA_ERROR)
6755 continue;
6756
6757 status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry);
6758 if (status == QLA_SUCCESS) {
6759 *flash_index = idx;
6760 ret = QLA_SUCCESS;
6761 goto exit_find_st_idx;
6762 }
6763 }
6764
6765 if (idx == max_ddbs)
6766 ql4_printk(KERN_ERR, ha, "Failed to find ST [%d] in flash\n",
6767 fw_idx);
6768
6769 exit_find_st_idx:
6770 if (flash_ddb_entry)
6771 dma_pool_free(ha->fw_ddb_dma_pool, flash_ddb_entry,
6772 flash_ddb_entry_dma);
6773
6774 return ret;
6775 }
6776
qla4xxx_build_st_list(struct scsi_qla_host * ha,struct list_head * list_st)6777 static void qla4xxx_build_st_list(struct scsi_qla_host *ha,
6778 struct list_head *list_st)
6779 {
6780 struct qla_ddb_index *st_ddb_idx;
6781 int max_ddbs;
6782 int fw_idx_size;
6783 struct dev_db_entry *fw_ddb_entry;
6784 dma_addr_t fw_ddb_dma;
6785 int ret;
6786 uint32_t idx = 0, next_idx = 0;
6787 uint32_t state = 0, conn_err = 0;
6788 uint32_t flash_index = -1;
6789 uint16_t conn_id = 0;
6790
6791 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
6792 &fw_ddb_dma);
6793 if (fw_ddb_entry == NULL) {
6794 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
6795 goto exit_st_list;
6796 }
6797
6798 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
6799 MAX_DEV_DB_ENTRIES;
6800 fw_idx_size = sizeof(struct qla_ddb_index);
6801
6802 for (idx = 0; idx < max_ddbs; idx = next_idx) {
6803 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
6804 NULL, &next_idx, &state,
6805 &conn_err, NULL, &conn_id);
6806 if (ret == QLA_ERROR)
6807 break;
6808
6809 /* Ignore DDB if invalid state (unassigned) */
6810 if (state == DDB_DS_UNASSIGNED)
6811 goto continue_next_st;
6812
6813 /* Check if ST, add to the list_st */
6814 if (strlen((char *) fw_ddb_entry->iscsi_name) != 0)
6815 goto continue_next_st;
6816
6817 st_ddb_idx = vzalloc(fw_idx_size);
6818 if (!st_ddb_idx)
6819 break;
6820
6821 ret = qla4xxx_find_flash_st_idx(ha, fw_ddb_entry, idx,
6822 &flash_index);
6823 if (ret == QLA_ERROR) {
6824 ql4_printk(KERN_ERR, ha,
6825 "No flash entry for ST at idx [%d]\n", idx);
6826 st_ddb_idx->flash_ddb_idx = idx;
6827 } else {
6828 ql4_printk(KERN_INFO, ha,
6829 "ST at idx [%d] is stored at flash [%d]\n",
6830 idx, flash_index);
6831 st_ddb_idx->flash_ddb_idx = flash_index;
6832 }
6833
6834 st_ddb_idx->fw_ddb_idx = idx;
6835
6836 list_add_tail(&st_ddb_idx->list, list_st);
6837 continue_next_st:
6838 if (next_idx == 0)
6839 break;
6840 }
6841
6842 exit_st_list:
6843 if (fw_ddb_entry)
6844 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
6845 }
6846
6847 /**
6848 * qla4xxx_remove_failed_ddb - Remove inactive or failed ddb from list
6849 * @ha: pointer to adapter structure
6850 * @list_ddb: List from which failed ddb to be removed
6851 *
6852 * Iterate over the list of DDBs and find and remove DDBs that are either in
6853 * no connection active state or failed state
6854 **/
qla4xxx_remove_failed_ddb(struct scsi_qla_host * ha,struct list_head * list_ddb)6855 static void qla4xxx_remove_failed_ddb(struct scsi_qla_host *ha,
6856 struct list_head *list_ddb)
6857 {
6858 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
6859 uint32_t next_idx = 0;
6860 uint32_t state = 0, conn_err = 0;
6861 int ret;
6862
6863 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
6864 ret = qla4xxx_get_fwddb_entry(ha, ddb_idx->fw_ddb_idx,
6865 NULL, 0, NULL, &next_idx, &state,
6866 &conn_err, NULL, NULL);
6867 if (ret == QLA_ERROR)
6868 continue;
6869
6870 if (state == DDB_DS_NO_CONNECTION_ACTIVE ||
6871 state == DDB_DS_SESSION_FAILED) {
6872 list_del_init(&ddb_idx->list);
6873 vfree(ddb_idx);
6874 }
6875 }
6876 }
6877
qla4xxx_update_sess_disc_idx(struct scsi_qla_host * ha,struct ddb_entry * ddb_entry,struct dev_db_entry * fw_ddb_entry)6878 static void qla4xxx_update_sess_disc_idx(struct scsi_qla_host *ha,
6879 struct ddb_entry *ddb_entry,
6880 struct dev_db_entry *fw_ddb_entry)
6881 {
6882 struct iscsi_cls_session *cls_sess;
6883 struct iscsi_session *sess;
6884 uint32_t max_ddbs = 0;
6885 uint16_t ddb_link = -1;
6886
6887 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
6888 MAX_DEV_DB_ENTRIES;
6889
6890 cls_sess = ddb_entry->sess;
6891 sess = cls_sess->dd_data;
6892
6893 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
6894 if (ddb_link < max_ddbs)
6895 sess->discovery_parent_idx = ddb_link;
6896 else
6897 sess->discovery_parent_idx = DDB_NO_LINK;
6898 }
6899
qla4xxx_sess_conn_setup(struct scsi_qla_host * ha,struct dev_db_entry * fw_ddb_entry,int is_reset,uint16_t idx)6900 static int qla4xxx_sess_conn_setup(struct scsi_qla_host *ha,
6901 struct dev_db_entry *fw_ddb_entry,
6902 int is_reset, uint16_t idx)
6903 {
6904 struct iscsi_cls_session *cls_sess;
6905 struct iscsi_session *sess;
6906 struct iscsi_cls_conn *cls_conn;
6907 struct iscsi_endpoint *ep;
6908 uint16_t cmds_max = 32;
6909 uint16_t conn_id = 0;
6910 uint32_t initial_cmdsn = 0;
6911 int ret = QLA_SUCCESS;
6912
6913 struct ddb_entry *ddb_entry = NULL;
6914
6915 /* Create session object, with INVALID_ENTRY,
6916 * the targer_id would get set when we issue the login
6917 */
6918 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, ha->host,
6919 cmds_max, sizeof(struct ddb_entry),
6920 sizeof(struct ql4_task_data),
6921 initial_cmdsn, INVALID_ENTRY);
6922 if (!cls_sess) {
6923 ret = QLA_ERROR;
6924 goto exit_setup;
6925 }
6926
6927 /*
6928 * so calling module_put function to decrement the
6929 * reference count.
6930 **/
6931 module_put(qla4xxx_iscsi_transport.owner);
6932 sess = cls_sess->dd_data;
6933 ddb_entry = sess->dd_data;
6934 ddb_entry->sess = cls_sess;
6935
6936 cls_sess->recovery_tmo = ql4xsess_recovery_tmo;
6937 memcpy(&ddb_entry->fw_ddb_entry, fw_ddb_entry,
6938 sizeof(struct dev_db_entry));
6939
6940 qla4xxx_setup_flash_ddb_entry(ha, ddb_entry, idx);
6941
6942 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), conn_id);
6943
6944 if (!cls_conn) {
6945 ret = QLA_ERROR;
6946 goto exit_setup;
6947 }
6948
6949 ddb_entry->conn = cls_conn;
6950
6951 /* Setup ep, for displaying attributes in sysfs */
6952 ep = qla4xxx_get_ep_fwdb(ha, fw_ddb_entry);
6953 if (ep) {
6954 ep->conn = cls_conn;
6955 cls_conn->ep = ep;
6956 } else {
6957 DEBUG2(ql4_printk(KERN_ERR, ha, "Unable to get ep\n"));
6958 ret = QLA_ERROR;
6959 goto exit_setup;
6960 }
6961
6962 /* Update sess/conn params */
6963 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn);
6964 qla4xxx_update_sess_disc_idx(ha, ddb_entry, fw_ddb_entry);
6965
6966 if (is_reset == RESET_ADAPTER) {
6967 iscsi_block_session(cls_sess);
6968 /* Use the relogin path to discover new devices
6969 * by short-circuting the logic of setting
6970 * timer to relogin - instead set the flags
6971 * to initiate login right away.
6972 */
6973 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
6974 set_bit(DF_RELOGIN, &ddb_entry->flags);
6975 }
6976
6977 exit_setup:
6978 return ret;
6979 }
6980
qla4xxx_update_fw_ddb_link(struct scsi_qla_host * ha,struct list_head * list_ddb,struct dev_db_entry * fw_ddb_entry)6981 static void qla4xxx_update_fw_ddb_link(struct scsi_qla_host *ha,
6982 struct list_head *list_ddb,
6983 struct dev_db_entry *fw_ddb_entry)
6984 {
6985 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
6986 uint16_t ddb_link;
6987
6988 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
6989
6990 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
6991 if (ddb_idx->fw_ddb_idx == ddb_link) {
6992 DEBUG2(ql4_printk(KERN_INFO, ha,
6993 "Updating NT parent idx from [%d] to [%d]\n",
6994 ddb_link, ddb_idx->flash_ddb_idx));
6995 fw_ddb_entry->ddb_link =
6996 cpu_to_le16(ddb_idx->flash_ddb_idx);
6997 return;
6998 }
6999 }
7000 }
7001
qla4xxx_build_nt_list(struct scsi_qla_host * ha,struct list_head * list_nt,struct list_head * list_st,int is_reset)7002 static void qla4xxx_build_nt_list(struct scsi_qla_host *ha,
7003 struct list_head *list_nt,
7004 struct list_head *list_st,
7005 int is_reset)
7006 {
7007 struct dev_db_entry *fw_ddb_entry;
7008 struct ddb_entry *ddb_entry = NULL;
7009 dma_addr_t fw_ddb_dma;
7010 int max_ddbs;
7011 int fw_idx_size;
7012 int ret;
7013 uint32_t idx = 0, next_idx = 0;
7014 uint32_t state = 0, conn_err = 0;
7015 uint32_t ddb_idx = -1;
7016 uint16_t conn_id = 0;
7017 uint16_t ddb_link = -1;
7018 struct qla_ddb_index *nt_ddb_idx;
7019
7020 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
7021 &fw_ddb_dma);
7022 if (fw_ddb_entry == NULL) {
7023 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
7024 goto exit_nt_list;
7025 }
7026 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
7027 MAX_DEV_DB_ENTRIES;
7028 fw_idx_size = sizeof(struct qla_ddb_index);
7029
7030 for (idx = 0; idx < max_ddbs; idx = next_idx) {
7031 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
7032 NULL, &next_idx, &state,
7033 &conn_err, NULL, &conn_id);
7034 if (ret == QLA_ERROR)
7035 break;
7036
7037 if (qla4xxx_verify_boot_idx(ha, idx) != QLA_SUCCESS)
7038 goto continue_next_nt;
7039
7040 /* Check if NT, then add to list it */
7041 if (strlen((char *) fw_ddb_entry->iscsi_name) == 0)
7042 goto continue_next_nt;
7043
7044 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
7045 if (ddb_link < max_ddbs)
7046 qla4xxx_update_fw_ddb_link(ha, list_st, fw_ddb_entry);
7047
7048 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE ||
7049 state == DDB_DS_SESSION_FAILED) &&
7050 (is_reset == INIT_ADAPTER))
7051 goto continue_next_nt;
7052
7053 DEBUG2(ql4_printk(KERN_INFO, ha,
7054 "Adding DDB to session = 0x%x\n", idx));
7055
7056 if (is_reset == INIT_ADAPTER) {
7057 nt_ddb_idx = vmalloc(fw_idx_size);
7058 if (!nt_ddb_idx)
7059 break;
7060
7061 nt_ddb_idx->fw_ddb_idx = idx;
7062
7063 /* Copy original isid as it may get updated in function
7064 * qla4xxx_update_isid(). We need original isid in
7065 * function qla4xxx_compare_tuple_ddb to find duplicate
7066 * target */
7067 memcpy(&nt_ddb_idx->flash_isid[0],
7068 &fw_ddb_entry->isid[0],
7069 sizeof(nt_ddb_idx->flash_isid));
7070
7071 ret = qla4xxx_is_flash_ddb_exists(ha, list_nt,
7072 fw_ddb_entry);
7073 if (ret == QLA_SUCCESS) {
7074 /* free nt_ddb_idx and do not add to list_nt */
7075 vfree(nt_ddb_idx);
7076 goto continue_next_nt;
7077 }
7078
7079 /* Copy updated isid */
7080 memcpy(&nt_ddb_idx->fw_ddb, fw_ddb_entry,
7081 sizeof(struct dev_db_entry));
7082
7083 list_add_tail(&nt_ddb_idx->list, list_nt);
7084 } else if (is_reset == RESET_ADAPTER) {
7085 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry,
7086 &ddb_idx);
7087 if (ret == QLA_SUCCESS) {
7088 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha,
7089 ddb_idx);
7090 if (ddb_entry != NULL)
7091 qla4xxx_update_sess_disc_idx(ha,
7092 ddb_entry,
7093 fw_ddb_entry);
7094 goto continue_next_nt;
7095 }
7096 }
7097
7098 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, is_reset, idx);
7099 if (ret == QLA_ERROR)
7100 goto exit_nt_list;
7101
7102 continue_next_nt:
7103 if (next_idx == 0)
7104 break;
7105 }
7106
7107 exit_nt_list:
7108 if (fw_ddb_entry)
7109 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
7110 }
7111
qla4xxx_build_new_nt_list(struct scsi_qla_host * ha,struct list_head * list_nt,uint16_t target_id)7112 static void qla4xxx_build_new_nt_list(struct scsi_qla_host *ha,
7113 struct list_head *list_nt,
7114 uint16_t target_id)
7115 {
7116 struct dev_db_entry *fw_ddb_entry;
7117 dma_addr_t fw_ddb_dma;
7118 int max_ddbs;
7119 int fw_idx_size;
7120 int ret;
7121 uint32_t idx = 0, next_idx = 0;
7122 uint32_t state = 0, conn_err = 0;
7123 uint16_t conn_id = 0;
7124 struct qla_ddb_index *nt_ddb_idx;
7125
7126 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
7127 &fw_ddb_dma);
7128 if (fw_ddb_entry == NULL) {
7129 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
7130 goto exit_new_nt_list;
7131 }
7132 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
7133 MAX_DEV_DB_ENTRIES;
7134 fw_idx_size = sizeof(struct qla_ddb_index);
7135
7136 for (idx = 0; idx < max_ddbs; idx = next_idx) {
7137 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
7138 NULL, &next_idx, &state,
7139 &conn_err, NULL, &conn_id);
7140 if (ret == QLA_ERROR)
7141 break;
7142
7143 /* Check if NT, then add it to list */
7144 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0)
7145 goto continue_next_new_nt;
7146
7147 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE))
7148 goto continue_next_new_nt;
7149
7150 DEBUG2(ql4_printk(KERN_INFO, ha,
7151 "Adding DDB to session = 0x%x\n", idx));
7152
7153 nt_ddb_idx = vmalloc(fw_idx_size);
7154 if (!nt_ddb_idx)
7155 break;
7156
7157 nt_ddb_idx->fw_ddb_idx = idx;
7158
7159 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL);
7160 if (ret == QLA_SUCCESS) {
7161 /* free nt_ddb_idx and do not add to list_nt */
7162 vfree(nt_ddb_idx);
7163 goto continue_next_new_nt;
7164 }
7165
7166 if (target_id < max_ddbs)
7167 fw_ddb_entry->ddb_link = cpu_to_le16(target_id);
7168
7169 list_add_tail(&nt_ddb_idx->list, list_nt);
7170
7171 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER,
7172 idx);
7173 if (ret == QLA_ERROR)
7174 goto exit_new_nt_list;
7175
7176 continue_next_new_nt:
7177 if (next_idx == 0)
7178 break;
7179 }
7180
7181 exit_new_nt_list:
7182 if (fw_ddb_entry)
7183 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
7184 }
7185
7186 /**
7187 * qla4xxx_sysfs_ddb_is_non_persistent - check for non-persistence of ddb entry
7188 * @dev: dev associated with the sysfs entry
7189 * @data: pointer to flashnode session object
7190 *
7191 * Returns:
7192 * 1: if flashnode entry is non-persistent
7193 * 0: if flashnode entry is persistent
7194 **/
qla4xxx_sysfs_ddb_is_non_persistent(struct device * dev,void * data)7195 static int qla4xxx_sysfs_ddb_is_non_persistent(struct device *dev, void *data)
7196 {
7197 struct iscsi_bus_flash_session *fnode_sess;
7198
7199 if (!iscsi_flashnode_bus_match(dev, NULL))
7200 return 0;
7201
7202 fnode_sess = iscsi_dev_to_flash_session(dev);
7203
7204 return (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT);
7205 }
7206
7207 /**
7208 * qla4xxx_sysfs_ddb_tgt_create - Create sysfs entry for target
7209 * @ha: pointer to host
7210 * @fw_ddb_entry: flash ddb data
7211 * @idx: target index
7212 * @user: if set then this call is made from userland else from kernel
7213 *
7214 * Returns:
7215 * On sucess: QLA_SUCCESS
7216 * On failure: QLA_ERROR
7217 *
7218 * This create separate sysfs entries for session and connection attributes of
7219 * the given fw ddb entry.
7220 * If this is invoked as a result of a userspace call then the entry is marked
7221 * as nonpersistent using flash_state field.
7222 **/
qla4xxx_sysfs_ddb_tgt_create(struct scsi_qla_host * ha,struct dev_db_entry * fw_ddb_entry,uint16_t * idx,int user)7223 static int qla4xxx_sysfs_ddb_tgt_create(struct scsi_qla_host *ha,
7224 struct dev_db_entry *fw_ddb_entry,
7225 uint16_t *idx, int user)
7226 {
7227 struct iscsi_bus_flash_session *fnode_sess = NULL;
7228 struct iscsi_bus_flash_conn *fnode_conn = NULL;
7229 int rc = QLA_ERROR;
7230
7231 fnode_sess = iscsi_create_flashnode_sess(ha->host, *idx,
7232 &qla4xxx_iscsi_transport, 0);
7233 if (!fnode_sess) {
7234 ql4_printk(KERN_ERR, ha,
7235 "%s: Unable to create session sysfs entry for flashnode %d of host%lu\n",
7236 __func__, *idx, ha->host_no);
7237 goto exit_tgt_create;
7238 }
7239
7240 fnode_conn = iscsi_create_flashnode_conn(ha->host, fnode_sess,
7241 &qla4xxx_iscsi_transport, 0);
7242 if (!fnode_conn) {
7243 ql4_printk(KERN_ERR, ha,
7244 "%s: Unable to create conn sysfs entry for flashnode %d of host%lu\n",
7245 __func__, *idx, ha->host_no);
7246 goto free_sess;
7247 }
7248
7249 if (user) {
7250 fnode_sess->flash_state = DEV_DB_NON_PERSISTENT;
7251 } else {
7252 fnode_sess->flash_state = DEV_DB_PERSISTENT;
7253
7254 if (*idx == ha->pri_ddb_idx || *idx == ha->sec_ddb_idx)
7255 fnode_sess->is_boot_target = 1;
7256 else
7257 fnode_sess->is_boot_target = 0;
7258 }
7259
7260 rc = qla4xxx_copy_from_fwddb_param(fnode_sess, fnode_conn,
7261 fw_ddb_entry);
7262 if (rc)
7263 goto free_sess;
7264
7265 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n",
7266 __func__, fnode_sess->dev.kobj.name);
7267
7268 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n",
7269 __func__, fnode_conn->dev.kobj.name);
7270
7271 return QLA_SUCCESS;
7272
7273 free_sess:
7274 iscsi_destroy_flashnode_sess(fnode_sess);
7275
7276 exit_tgt_create:
7277 return QLA_ERROR;
7278 }
7279
7280 /**
7281 * qla4xxx_sysfs_ddb_add - Add new ddb entry in flash
7282 * @shost: pointer to host
7283 * @buf: type of ddb entry (ipv4/ipv6)
7284 * @len: length of buf
7285 *
7286 * This creates new ddb entry in the flash by finding first free index and
7287 * storing default ddb there. And then create sysfs entry for the new ddb entry.
7288 **/
qla4xxx_sysfs_ddb_add(struct Scsi_Host * shost,const char * buf,int len)7289 static int qla4xxx_sysfs_ddb_add(struct Scsi_Host *shost, const char *buf,
7290 int len)
7291 {
7292 struct scsi_qla_host *ha = to_qla_host(shost);
7293 struct dev_db_entry *fw_ddb_entry = NULL;
7294 dma_addr_t fw_ddb_entry_dma;
7295 struct device *dev;
7296 uint16_t idx = 0;
7297 uint16_t max_ddbs = 0;
7298 uint32_t options = 0;
7299 uint32_t rval = QLA_ERROR;
7300
7301 if (strncasecmp(PORTAL_TYPE_IPV4, buf, 4) &&
7302 strncasecmp(PORTAL_TYPE_IPV6, buf, 4)) {
7303 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Invalid portal type\n",
7304 __func__));
7305 goto exit_ddb_add;
7306 }
7307
7308 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES :
7309 MAX_DEV_DB_ENTRIES;
7310
7311 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7312 &fw_ddb_entry_dma, GFP_KERNEL);
7313 if (!fw_ddb_entry) {
7314 DEBUG2(ql4_printk(KERN_ERR, ha,
7315 "%s: Unable to allocate dma buffer\n",
7316 __func__));
7317 goto exit_ddb_add;
7318 }
7319
7320 dev = iscsi_find_flashnode_sess(ha->host, NULL,
7321 qla4xxx_sysfs_ddb_is_non_persistent);
7322 if (dev) {
7323 ql4_printk(KERN_ERR, ha,
7324 "%s: A non-persistent entry %s found\n",
7325 __func__, dev->kobj.name);
7326 put_device(dev);
7327 goto exit_ddb_add;
7328 }
7329
7330 /* Index 0 and 1 are reserved for boot target entries */
7331 for (idx = 2; idx < max_ddbs; idx++) {
7332 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry,
7333 fw_ddb_entry_dma, idx))
7334 break;
7335 }
7336
7337 if (idx == max_ddbs)
7338 goto exit_ddb_add;
7339
7340 if (!strncasecmp("ipv6", buf, 4))
7341 options |= IPV6_DEFAULT_DDB_ENTRY;
7342
7343 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
7344 if (rval == QLA_ERROR)
7345 goto exit_ddb_add;
7346
7347 rval = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 1);
7348
7349 exit_ddb_add:
7350 if (fw_ddb_entry)
7351 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7352 fw_ddb_entry, fw_ddb_entry_dma);
7353 if (rval == QLA_SUCCESS)
7354 return idx;
7355 else
7356 return -EIO;
7357 }
7358
7359 /**
7360 * qla4xxx_sysfs_ddb_apply - write the target ddb contents to Flash
7361 * @fnode_sess: pointer to session attrs of flash ddb entry
7362 * @fnode_conn: pointer to connection attrs of flash ddb entry
7363 *
7364 * This writes the contents of target ddb buffer to Flash with a valid cookie
7365 * value in order to make the ddb entry persistent.
7366 **/
qla4xxx_sysfs_ddb_apply(struct iscsi_bus_flash_session * fnode_sess,struct iscsi_bus_flash_conn * fnode_conn)7367 static int qla4xxx_sysfs_ddb_apply(struct iscsi_bus_flash_session *fnode_sess,
7368 struct iscsi_bus_flash_conn *fnode_conn)
7369 {
7370 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7371 struct scsi_qla_host *ha = to_qla_host(shost);
7372 uint32_t dev_db_start_offset = FLASH_OFFSET_DB_INFO;
7373 struct dev_db_entry *fw_ddb_entry = NULL;
7374 dma_addr_t fw_ddb_entry_dma;
7375 uint32_t options = 0;
7376 int rval = 0;
7377
7378 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7379 &fw_ddb_entry_dma, GFP_KERNEL);
7380 if (!fw_ddb_entry) {
7381 DEBUG2(ql4_printk(KERN_ERR, ha,
7382 "%s: Unable to allocate dma buffer\n",
7383 __func__));
7384 rval = -ENOMEM;
7385 goto exit_ddb_apply;
7386 }
7387
7388 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7389 options |= IPV6_DEFAULT_DDB_ENTRY;
7390
7391 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
7392 if (rval == QLA_ERROR)
7393 goto exit_ddb_apply;
7394
7395 dev_db_start_offset += (fnode_sess->target_id *
7396 sizeof(*fw_ddb_entry));
7397
7398 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry);
7399 fw_ddb_entry->cookie = DDB_VALID_COOKIE;
7400
7401 rval = qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset,
7402 sizeof(*fw_ddb_entry), FLASH_OPT_RMW_COMMIT);
7403
7404 if (rval == QLA_SUCCESS) {
7405 fnode_sess->flash_state = DEV_DB_PERSISTENT;
7406 ql4_printk(KERN_INFO, ha,
7407 "%s: flash node %u of host %lu written to flash\n",
7408 __func__, fnode_sess->target_id, ha->host_no);
7409 } else {
7410 rval = -EIO;
7411 ql4_printk(KERN_ERR, ha,
7412 "%s: Error while writing flash node %u of host %lu to flash\n",
7413 __func__, fnode_sess->target_id, ha->host_no);
7414 }
7415
7416 exit_ddb_apply:
7417 if (fw_ddb_entry)
7418 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7419 fw_ddb_entry, fw_ddb_entry_dma);
7420 return rval;
7421 }
7422
qla4xxx_sysfs_ddb_conn_open(struct scsi_qla_host * ha,struct dev_db_entry * fw_ddb_entry,uint16_t idx)7423 static ssize_t qla4xxx_sysfs_ddb_conn_open(struct scsi_qla_host *ha,
7424 struct dev_db_entry *fw_ddb_entry,
7425 uint16_t idx)
7426 {
7427 struct dev_db_entry *ddb_entry = NULL;
7428 dma_addr_t ddb_entry_dma;
7429 unsigned long wtime;
7430 uint32_t mbx_sts = 0;
7431 uint32_t state = 0, conn_err = 0;
7432 uint16_t tmo = 0;
7433 int ret = 0;
7434
7435 ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*ddb_entry),
7436 &ddb_entry_dma, GFP_KERNEL);
7437 if (!ddb_entry) {
7438 DEBUG2(ql4_printk(KERN_ERR, ha,
7439 "%s: Unable to allocate dma buffer\n",
7440 __func__));
7441 return QLA_ERROR;
7442 }
7443
7444 memcpy(ddb_entry, fw_ddb_entry, sizeof(*ddb_entry));
7445
7446 ret = qla4xxx_set_ddb_entry(ha, idx, ddb_entry_dma, &mbx_sts);
7447 if (ret != QLA_SUCCESS) {
7448 DEBUG2(ql4_printk(KERN_ERR, ha,
7449 "%s: Unable to set ddb entry for index %d\n",
7450 __func__, idx));
7451 goto exit_ddb_conn_open;
7452 }
7453
7454 qla4xxx_conn_open(ha, idx);
7455
7456 /* To ensure that sendtargets is done, wait for at least 12 secs */
7457 tmo = ((ha->def_timeout > LOGIN_TOV) &&
7458 (ha->def_timeout < LOGIN_TOV * 10) ?
7459 ha->def_timeout : LOGIN_TOV);
7460
7461 DEBUG2(ql4_printk(KERN_INFO, ha,
7462 "Default time to wait for login to ddb %d\n", tmo));
7463
7464 wtime = jiffies + (HZ * tmo);
7465 do {
7466 ret = qla4xxx_get_fwddb_entry(ha, idx, NULL, 0, NULL,
7467 NULL, &state, &conn_err, NULL,
7468 NULL);
7469 if (ret == QLA_ERROR)
7470 continue;
7471
7472 if (state == DDB_DS_NO_CONNECTION_ACTIVE ||
7473 state == DDB_DS_SESSION_FAILED)
7474 break;
7475
7476 schedule_timeout_uninterruptible(HZ / 10);
7477 } while (time_after(wtime, jiffies));
7478
7479 exit_ddb_conn_open:
7480 if (ddb_entry)
7481 dma_free_coherent(&ha->pdev->dev, sizeof(*ddb_entry),
7482 ddb_entry, ddb_entry_dma);
7483 return ret;
7484 }
7485
qla4xxx_ddb_login_st(struct scsi_qla_host * ha,struct dev_db_entry * fw_ddb_entry,uint16_t target_id)7486 static int qla4xxx_ddb_login_st(struct scsi_qla_host *ha,
7487 struct dev_db_entry *fw_ddb_entry,
7488 uint16_t target_id)
7489 {
7490 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
7491 struct list_head list_nt;
7492 uint16_t ddb_index;
7493 int ret = 0;
7494
7495 if (test_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags)) {
7496 ql4_printk(KERN_WARNING, ha,
7497 "%s: A discovery already in progress!\n", __func__);
7498 return QLA_ERROR;
7499 }
7500
7501 INIT_LIST_HEAD(&list_nt);
7502
7503 set_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags);
7504
7505 ret = qla4xxx_get_ddb_index(ha, &ddb_index);
7506 if (ret == QLA_ERROR)
7507 goto exit_login_st_clr_bit;
7508
7509 ret = qla4xxx_sysfs_ddb_conn_open(ha, fw_ddb_entry, ddb_index);
7510 if (ret == QLA_ERROR)
7511 goto exit_login_st;
7512
7513 qla4xxx_build_new_nt_list(ha, &list_nt, target_id);
7514
7515 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, &list_nt, list) {
7516 list_del_init(&ddb_idx->list);
7517 qla4xxx_clear_ddb_entry(ha, ddb_idx->fw_ddb_idx);
7518 vfree(ddb_idx);
7519 }
7520
7521 exit_login_st:
7522 if (qla4xxx_clear_ddb_entry(ha, ddb_index) == QLA_ERROR) {
7523 ql4_printk(KERN_ERR, ha,
7524 "Unable to clear DDB index = 0x%x\n", ddb_index);
7525 }
7526
7527 clear_bit(ddb_index, ha->ddb_idx_map);
7528
7529 exit_login_st_clr_bit:
7530 clear_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags);
7531 return ret;
7532 }
7533
qla4xxx_ddb_login_nt(struct scsi_qla_host * ha,struct dev_db_entry * fw_ddb_entry,uint16_t idx)7534 static int qla4xxx_ddb_login_nt(struct scsi_qla_host *ha,
7535 struct dev_db_entry *fw_ddb_entry,
7536 uint16_t idx)
7537 {
7538 int ret = QLA_ERROR;
7539
7540 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL);
7541 if (ret != QLA_SUCCESS)
7542 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER,
7543 idx);
7544 else
7545 ret = -EPERM;
7546
7547 return ret;
7548 }
7549
7550 /**
7551 * qla4xxx_sysfs_ddb_login - Login to the specified target
7552 * @fnode_sess: pointer to session attrs of flash ddb entry
7553 * @fnode_conn: pointer to connection attrs of flash ddb entry
7554 *
7555 * This logs in to the specified target
7556 **/
qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session * fnode_sess,struct iscsi_bus_flash_conn * fnode_conn)7557 static int qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess,
7558 struct iscsi_bus_flash_conn *fnode_conn)
7559 {
7560 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7561 struct scsi_qla_host *ha = to_qla_host(shost);
7562 struct dev_db_entry *fw_ddb_entry = NULL;
7563 dma_addr_t fw_ddb_entry_dma;
7564 uint32_t options = 0;
7565 int ret = 0;
7566
7567 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT) {
7568 ql4_printk(KERN_ERR, ha,
7569 "%s: Target info is not persistent\n", __func__);
7570 ret = -EIO;
7571 goto exit_ddb_login;
7572 }
7573
7574 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7575 &fw_ddb_entry_dma, GFP_KERNEL);
7576 if (!fw_ddb_entry) {
7577 DEBUG2(ql4_printk(KERN_ERR, ha,
7578 "%s: Unable to allocate dma buffer\n",
7579 __func__));
7580 ret = -ENOMEM;
7581 goto exit_ddb_login;
7582 }
7583
7584 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7585 options |= IPV6_DEFAULT_DDB_ENTRY;
7586
7587 ret = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
7588 if (ret == QLA_ERROR)
7589 goto exit_ddb_login;
7590
7591 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry);
7592 fw_ddb_entry->cookie = DDB_VALID_COOKIE;
7593
7594 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0)
7595 ret = qla4xxx_ddb_login_st(ha, fw_ddb_entry,
7596 fnode_sess->target_id);
7597 else
7598 ret = qla4xxx_ddb_login_nt(ha, fw_ddb_entry,
7599 fnode_sess->target_id);
7600
7601 if (ret > 0)
7602 ret = -EIO;
7603
7604 exit_ddb_login:
7605 if (fw_ddb_entry)
7606 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7607 fw_ddb_entry, fw_ddb_entry_dma);
7608 return ret;
7609 }
7610
7611 /**
7612 * qla4xxx_sysfs_ddb_logout_sid - Logout session for the specified target
7613 * @cls_sess: pointer to session to be logged out
7614 *
7615 * This performs session log out from the specified target
7616 **/
qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session * cls_sess)7617 static int qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess)
7618 {
7619 struct iscsi_session *sess;
7620 struct ddb_entry *ddb_entry = NULL;
7621 struct scsi_qla_host *ha;
7622 struct dev_db_entry *fw_ddb_entry = NULL;
7623 dma_addr_t fw_ddb_entry_dma;
7624 unsigned long flags;
7625 unsigned long wtime;
7626 uint32_t ddb_state;
7627 int options;
7628 int ret = 0;
7629
7630 sess = cls_sess->dd_data;
7631 ddb_entry = sess->dd_data;
7632 ha = ddb_entry->ha;
7633
7634 if (ddb_entry->ddb_type != FLASH_DDB) {
7635 ql4_printk(KERN_ERR, ha, "%s: Not a flash node session\n",
7636 __func__);
7637 ret = -ENXIO;
7638 goto exit_ddb_logout;
7639 }
7640
7641 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) {
7642 ql4_printk(KERN_ERR, ha,
7643 "%s: Logout from boot target entry is not permitted.\n",
7644 __func__);
7645 ret = -EPERM;
7646 goto exit_ddb_logout;
7647 }
7648
7649 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7650 &fw_ddb_entry_dma, GFP_KERNEL);
7651 if (!fw_ddb_entry) {
7652 ql4_printk(KERN_ERR, ha,
7653 "%s: Unable to allocate dma buffer\n", __func__);
7654 ret = -ENOMEM;
7655 goto exit_ddb_logout;
7656 }
7657
7658 if (test_and_set_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags))
7659 goto ddb_logout_init;
7660
7661 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
7662 fw_ddb_entry, fw_ddb_entry_dma,
7663 NULL, NULL, &ddb_state, NULL,
7664 NULL, NULL);
7665 if (ret == QLA_ERROR)
7666 goto ddb_logout_init;
7667
7668 if (ddb_state == DDB_DS_SESSION_ACTIVE)
7669 goto ddb_logout_init;
7670
7671 /* wait until next relogin is triggered using DF_RELOGIN and
7672 * clear DF_RELOGIN to avoid invocation of further relogin
7673 */
7674 wtime = jiffies + (HZ * RELOGIN_TOV);
7675 do {
7676 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags))
7677 goto ddb_logout_init;
7678
7679 schedule_timeout_uninterruptible(HZ);
7680 } while ((time_after(wtime, jiffies)));
7681
7682 ddb_logout_init:
7683 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY);
7684 atomic_set(&ddb_entry->relogin_timer, 0);
7685
7686 options = LOGOUT_OPTION_CLOSE_SESSION;
7687 qla4xxx_session_logout_ddb(ha, ddb_entry, options);
7688
7689 memset(fw_ddb_entry, 0, sizeof(*fw_ddb_entry));
7690 wtime = jiffies + (HZ * LOGOUT_TOV);
7691 do {
7692 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
7693 fw_ddb_entry, fw_ddb_entry_dma,
7694 NULL, NULL, &ddb_state, NULL,
7695 NULL, NULL);
7696 if (ret == QLA_ERROR)
7697 goto ddb_logout_clr_sess;
7698
7699 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) ||
7700 (ddb_state == DDB_DS_SESSION_FAILED))
7701 goto ddb_logout_clr_sess;
7702
7703 schedule_timeout_uninterruptible(HZ);
7704 } while ((time_after(wtime, jiffies)));
7705
7706 ddb_logout_clr_sess:
7707 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
7708 /*
7709 * we have decremented the reference count of the driver
7710 * when we setup the session to have the driver unload
7711 * to be seamless without actually destroying the
7712 * session
7713 **/
7714 try_module_get(qla4xxx_iscsi_transport.owner);
7715 iscsi_destroy_endpoint(ddb_entry->conn->ep);
7716
7717 spin_lock_irqsave(&ha->hardware_lock, flags);
7718 qla4xxx_free_ddb(ha, ddb_entry);
7719 clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map);
7720 spin_unlock_irqrestore(&ha->hardware_lock, flags);
7721
7722 iscsi_session_teardown(ddb_entry->sess);
7723
7724 clear_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags);
7725 ret = QLA_SUCCESS;
7726
7727 exit_ddb_logout:
7728 if (fw_ddb_entry)
7729 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7730 fw_ddb_entry, fw_ddb_entry_dma);
7731 return ret;
7732 }
7733
7734 /**
7735 * qla4xxx_sysfs_ddb_logout - Logout from the specified target
7736 * @fnode_sess: pointer to session attrs of flash ddb entry
7737 * @fnode_conn: pointer to connection attrs of flash ddb entry
7738 *
7739 * This performs log out from the specified target
7740 **/
qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session * fnode_sess,struct iscsi_bus_flash_conn * fnode_conn)7741 static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess,
7742 struct iscsi_bus_flash_conn *fnode_conn)
7743 {
7744 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7745 struct scsi_qla_host *ha = to_qla_host(shost);
7746 struct ql4_tuple_ddb *flash_tddb = NULL;
7747 struct ql4_tuple_ddb *tmp_tddb = NULL;
7748 struct dev_db_entry *fw_ddb_entry = NULL;
7749 struct ddb_entry *ddb_entry = NULL;
7750 dma_addr_t fw_ddb_dma;
7751 uint32_t next_idx = 0;
7752 uint32_t state = 0, conn_err = 0;
7753 uint16_t conn_id = 0;
7754 int idx, index;
7755 int status, ret = 0;
7756
7757 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
7758 &fw_ddb_dma);
7759 if (fw_ddb_entry == NULL) {
7760 ql4_printk(KERN_ERR, ha, "%s:Out of memory\n", __func__);
7761 ret = -ENOMEM;
7762 goto exit_ddb_logout;
7763 }
7764
7765 flash_tddb = vzalloc(sizeof(*flash_tddb));
7766 if (!flash_tddb) {
7767 ql4_printk(KERN_WARNING, ha,
7768 "%s:Memory Allocation failed.\n", __func__);
7769 ret = -ENOMEM;
7770 goto exit_ddb_logout;
7771 }
7772
7773 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
7774 if (!tmp_tddb) {
7775 ql4_printk(KERN_WARNING, ha,
7776 "%s:Memory Allocation failed.\n", __func__);
7777 ret = -ENOMEM;
7778 goto exit_ddb_logout;
7779 }
7780
7781 if (!fnode_sess->targetname) {
7782 ql4_printk(KERN_ERR, ha,
7783 "%s:Cannot logout from SendTarget entry\n",
7784 __func__);
7785 ret = -EPERM;
7786 goto exit_ddb_logout;
7787 }
7788
7789 if (fnode_sess->is_boot_target) {
7790 ql4_printk(KERN_ERR, ha,
7791 "%s: Logout from boot target entry is not permitted.\n",
7792 __func__);
7793 ret = -EPERM;
7794 goto exit_ddb_logout;
7795 }
7796
7797 strlcpy(flash_tddb->iscsi_name, fnode_sess->targetname,
7798 ISCSI_NAME_SIZE);
7799
7800 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7801 sprintf(flash_tddb->ip_addr, "%pI6", fnode_conn->ipaddress);
7802 else
7803 sprintf(flash_tddb->ip_addr, "%pI4", fnode_conn->ipaddress);
7804
7805 flash_tddb->tpgt = fnode_sess->tpgt;
7806 flash_tddb->port = fnode_conn->port;
7807
7808 COPY_ISID(flash_tddb->isid, fnode_sess->isid);
7809
7810 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
7811 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
7812 if (ddb_entry == NULL)
7813 continue;
7814
7815 if (ddb_entry->ddb_type != FLASH_DDB)
7816 continue;
7817
7818 index = ddb_entry->sess->target_id;
7819 status = qla4xxx_get_fwddb_entry(ha, index, fw_ddb_entry,
7820 fw_ddb_dma, NULL, &next_idx,
7821 &state, &conn_err, NULL,
7822 &conn_id);
7823 if (status == QLA_ERROR) {
7824 ret = -ENOMEM;
7825 break;
7826 }
7827
7828 qla4xxx_convert_param_ddb(fw_ddb_entry, tmp_tddb, NULL);
7829
7830 status = qla4xxx_compare_tuple_ddb(ha, flash_tddb, tmp_tddb,
7831 true);
7832 if (status == QLA_SUCCESS) {
7833 ret = qla4xxx_sysfs_ddb_logout_sid(ddb_entry->sess);
7834 break;
7835 }
7836 }
7837
7838 if (idx == MAX_DDB_ENTRIES)
7839 ret = -ESRCH;
7840
7841 exit_ddb_logout:
7842 if (flash_tddb)
7843 vfree(flash_tddb);
7844 if (tmp_tddb)
7845 vfree(tmp_tddb);
7846 if (fw_ddb_entry)
7847 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
7848
7849 return ret;
7850 }
7851
7852 static int
qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session * fnode_sess,int param,char * buf)7853 qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session *fnode_sess,
7854 int param, char *buf)
7855 {
7856 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7857 struct scsi_qla_host *ha = to_qla_host(shost);
7858 struct iscsi_bus_flash_conn *fnode_conn;
7859 struct ql4_chap_table chap_tbl;
7860 struct device *dev;
7861 int parent_type;
7862 int rc = 0;
7863
7864 dev = iscsi_find_flashnode_conn(fnode_sess);
7865 if (!dev)
7866 return -EIO;
7867
7868 fnode_conn = iscsi_dev_to_flash_conn(dev);
7869
7870 switch (param) {
7871 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6:
7872 rc = sprintf(buf, "%u\n", fnode_conn->is_fw_assigned_ipv6);
7873 break;
7874 case ISCSI_FLASHNODE_PORTAL_TYPE:
7875 rc = sprintf(buf, "%s\n", fnode_sess->portal_type);
7876 break;
7877 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE:
7878 rc = sprintf(buf, "%u\n", fnode_sess->auto_snd_tgt_disable);
7879 break;
7880 case ISCSI_FLASHNODE_DISCOVERY_SESS:
7881 rc = sprintf(buf, "%u\n", fnode_sess->discovery_sess);
7882 break;
7883 case ISCSI_FLASHNODE_ENTRY_EN:
7884 rc = sprintf(buf, "%u\n", fnode_sess->entry_state);
7885 break;
7886 case ISCSI_FLASHNODE_HDR_DGST_EN:
7887 rc = sprintf(buf, "%u\n", fnode_conn->hdrdgst_en);
7888 break;
7889 case ISCSI_FLASHNODE_DATA_DGST_EN:
7890 rc = sprintf(buf, "%u\n", fnode_conn->datadgst_en);
7891 break;
7892 case ISCSI_FLASHNODE_IMM_DATA_EN:
7893 rc = sprintf(buf, "%u\n", fnode_sess->imm_data_en);
7894 break;
7895 case ISCSI_FLASHNODE_INITIAL_R2T_EN:
7896 rc = sprintf(buf, "%u\n", fnode_sess->initial_r2t_en);
7897 break;
7898 case ISCSI_FLASHNODE_DATASEQ_INORDER:
7899 rc = sprintf(buf, "%u\n", fnode_sess->dataseq_inorder_en);
7900 break;
7901 case ISCSI_FLASHNODE_PDU_INORDER:
7902 rc = sprintf(buf, "%u\n", fnode_sess->pdu_inorder_en);
7903 break;
7904 case ISCSI_FLASHNODE_CHAP_AUTH_EN:
7905 rc = sprintf(buf, "%u\n", fnode_sess->chap_auth_en);
7906 break;
7907 case ISCSI_FLASHNODE_SNACK_REQ_EN:
7908 rc = sprintf(buf, "%u\n", fnode_conn->snack_req_en);
7909 break;
7910 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN:
7911 rc = sprintf(buf, "%u\n", fnode_sess->discovery_logout_en);
7912 break;
7913 case ISCSI_FLASHNODE_BIDI_CHAP_EN:
7914 rc = sprintf(buf, "%u\n", fnode_sess->bidi_chap_en);
7915 break;
7916 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL:
7917 rc = sprintf(buf, "%u\n", fnode_sess->discovery_auth_optional);
7918 break;
7919 case ISCSI_FLASHNODE_ERL:
7920 rc = sprintf(buf, "%u\n", fnode_sess->erl);
7921 break;
7922 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT:
7923 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_stat);
7924 break;
7925 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE:
7926 rc = sprintf(buf, "%u\n", fnode_conn->tcp_nagle_disable);
7927 break;
7928 case ISCSI_FLASHNODE_TCP_WSF_DISABLE:
7929 rc = sprintf(buf, "%u\n", fnode_conn->tcp_wsf_disable);
7930 break;
7931 case ISCSI_FLASHNODE_TCP_TIMER_SCALE:
7932 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timer_scale);
7933 break;
7934 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN:
7935 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_en);
7936 break;
7937 case ISCSI_FLASHNODE_IP_FRAG_DISABLE:
7938 rc = sprintf(buf, "%u\n", fnode_conn->fragment_disable);
7939 break;
7940 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH:
7941 rc = sprintf(buf, "%u\n", fnode_conn->max_recv_dlength);
7942 break;
7943 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH:
7944 rc = sprintf(buf, "%u\n", fnode_conn->max_xmit_dlength);
7945 break;
7946 case ISCSI_FLASHNODE_FIRST_BURST:
7947 rc = sprintf(buf, "%u\n", fnode_sess->first_burst);
7948 break;
7949 case ISCSI_FLASHNODE_DEF_TIME2WAIT:
7950 rc = sprintf(buf, "%u\n", fnode_sess->time2wait);
7951 break;
7952 case ISCSI_FLASHNODE_DEF_TIME2RETAIN:
7953 rc = sprintf(buf, "%u\n", fnode_sess->time2retain);
7954 break;
7955 case ISCSI_FLASHNODE_MAX_R2T:
7956 rc = sprintf(buf, "%u\n", fnode_sess->max_r2t);
7957 break;
7958 case ISCSI_FLASHNODE_KEEPALIVE_TMO:
7959 rc = sprintf(buf, "%u\n", fnode_conn->keepalive_timeout);
7960 break;
7961 case ISCSI_FLASHNODE_ISID:
7962 rc = sprintf(buf, "%pm\n", fnode_sess->isid);
7963 break;
7964 case ISCSI_FLASHNODE_TSID:
7965 rc = sprintf(buf, "%u\n", fnode_sess->tsid);
7966 break;
7967 case ISCSI_FLASHNODE_PORT:
7968 rc = sprintf(buf, "%d\n", fnode_conn->port);
7969 break;
7970 case ISCSI_FLASHNODE_MAX_BURST:
7971 rc = sprintf(buf, "%u\n", fnode_sess->max_burst);
7972 break;
7973 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO:
7974 rc = sprintf(buf, "%u\n",
7975 fnode_sess->default_taskmgmt_timeout);
7976 break;
7977 case ISCSI_FLASHNODE_IPADDR:
7978 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7979 rc = sprintf(buf, "%pI6\n", fnode_conn->ipaddress);
7980 else
7981 rc = sprintf(buf, "%pI4\n", fnode_conn->ipaddress);
7982 break;
7983 case ISCSI_FLASHNODE_ALIAS:
7984 if (fnode_sess->targetalias)
7985 rc = sprintf(buf, "%s\n", fnode_sess->targetalias);
7986 else
7987 rc = sprintf(buf, "\n");
7988 break;
7989 case ISCSI_FLASHNODE_REDIRECT_IPADDR:
7990 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7991 rc = sprintf(buf, "%pI6\n",
7992 fnode_conn->redirect_ipaddr);
7993 else
7994 rc = sprintf(buf, "%pI4\n",
7995 fnode_conn->redirect_ipaddr);
7996 break;
7997 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE:
7998 rc = sprintf(buf, "%u\n", fnode_conn->max_segment_size);
7999 break;
8000 case ISCSI_FLASHNODE_LOCAL_PORT:
8001 rc = sprintf(buf, "%u\n", fnode_conn->local_port);
8002 break;
8003 case ISCSI_FLASHNODE_IPV4_TOS:
8004 rc = sprintf(buf, "%u\n", fnode_conn->ipv4_tos);
8005 break;
8006 case ISCSI_FLASHNODE_IPV6_TC:
8007 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
8008 rc = sprintf(buf, "%u\n",
8009 fnode_conn->ipv6_traffic_class);
8010 else
8011 rc = sprintf(buf, "\n");
8012 break;
8013 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL:
8014 rc = sprintf(buf, "%u\n", fnode_conn->ipv6_flow_label);
8015 break;
8016 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6:
8017 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
8018 rc = sprintf(buf, "%pI6\n",
8019 fnode_conn->link_local_ipv6_addr);
8020 else
8021 rc = sprintf(buf, "\n");
8022 break;
8023 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX:
8024 rc = sprintf(buf, "%u\n", fnode_sess->discovery_parent_idx);
8025 break;
8026 case ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE:
8027 if (fnode_sess->discovery_parent_type == DDB_ISNS)
8028 parent_type = ISCSI_DISC_PARENT_ISNS;
8029 else if (fnode_sess->discovery_parent_type == DDB_NO_LINK)
8030 parent_type = ISCSI_DISC_PARENT_UNKNOWN;
8031 else if (fnode_sess->discovery_parent_type < MAX_DDB_ENTRIES)
8032 parent_type = ISCSI_DISC_PARENT_SENDTGT;
8033 else
8034 parent_type = ISCSI_DISC_PARENT_UNKNOWN;
8035
8036 rc = sprintf(buf, "%s\n",
8037 iscsi_get_discovery_parent_name(parent_type));
8038 break;
8039 case ISCSI_FLASHNODE_NAME:
8040 if (fnode_sess->targetname)
8041 rc = sprintf(buf, "%s\n", fnode_sess->targetname);
8042 else
8043 rc = sprintf(buf, "\n");
8044 break;
8045 case ISCSI_FLASHNODE_TPGT:
8046 rc = sprintf(buf, "%u\n", fnode_sess->tpgt);
8047 break;
8048 case ISCSI_FLASHNODE_TCP_XMIT_WSF:
8049 rc = sprintf(buf, "%u\n", fnode_conn->tcp_xmit_wsf);
8050 break;
8051 case ISCSI_FLASHNODE_TCP_RECV_WSF:
8052 rc = sprintf(buf, "%u\n", fnode_conn->tcp_recv_wsf);
8053 break;
8054 case ISCSI_FLASHNODE_CHAP_OUT_IDX:
8055 rc = sprintf(buf, "%u\n", fnode_sess->chap_out_idx);
8056 break;
8057 case ISCSI_FLASHNODE_USERNAME:
8058 if (fnode_sess->chap_auth_en) {
8059 qla4xxx_get_uni_chap_at_index(ha,
8060 chap_tbl.name,
8061 chap_tbl.secret,
8062 fnode_sess->chap_out_idx);
8063 rc = sprintf(buf, "%s\n", chap_tbl.name);
8064 } else {
8065 rc = sprintf(buf, "\n");
8066 }
8067 break;
8068 case ISCSI_FLASHNODE_PASSWORD:
8069 if (fnode_sess->chap_auth_en) {
8070 qla4xxx_get_uni_chap_at_index(ha,
8071 chap_tbl.name,
8072 chap_tbl.secret,
8073 fnode_sess->chap_out_idx);
8074 rc = sprintf(buf, "%s\n", chap_tbl.secret);
8075 } else {
8076 rc = sprintf(buf, "\n");
8077 }
8078 break;
8079 case ISCSI_FLASHNODE_STATSN:
8080 rc = sprintf(buf, "%u\n", fnode_conn->statsn);
8081 break;
8082 case ISCSI_FLASHNODE_EXP_STATSN:
8083 rc = sprintf(buf, "%u\n", fnode_conn->exp_statsn);
8084 break;
8085 case ISCSI_FLASHNODE_IS_BOOT_TGT:
8086 rc = sprintf(buf, "%u\n", fnode_sess->is_boot_target);
8087 break;
8088 default:
8089 rc = -ENOSYS;
8090 break;
8091 }
8092
8093 put_device(dev);
8094 return rc;
8095 }
8096
8097 /**
8098 * qla4xxx_sysfs_ddb_set_param - Set parameter for firmware DDB entry
8099 * @fnode_sess: pointer to session attrs of flash ddb entry
8100 * @fnode_conn: pointer to connection attrs of flash ddb entry
8101 * @data: Parameters and their values to update
8102 * @len: len of data
8103 *
8104 * This sets the parameter of flash ddb entry and writes them to flash
8105 **/
8106 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)8107 qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess,
8108 struct iscsi_bus_flash_conn *fnode_conn,
8109 void *data, int len)
8110 {
8111 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
8112 struct scsi_qla_host *ha = to_qla_host(shost);
8113 struct iscsi_flashnode_param_info *fnode_param;
8114 struct ql4_chap_table chap_tbl;
8115 struct nlattr *attr;
8116 uint16_t chap_out_idx = INVALID_ENTRY;
8117 int rc = QLA_ERROR;
8118 uint32_t rem = len;
8119
8120 memset((void *)&chap_tbl, 0, sizeof(chap_tbl));
8121 nla_for_each_attr(attr, data, len, rem) {
8122 fnode_param = nla_data(attr);
8123
8124 switch (fnode_param->param) {
8125 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6:
8126 fnode_conn->is_fw_assigned_ipv6 = fnode_param->value[0];
8127 break;
8128 case ISCSI_FLASHNODE_PORTAL_TYPE:
8129 memcpy(fnode_sess->portal_type, fnode_param->value,
8130 strlen(fnode_sess->portal_type));
8131 break;
8132 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE:
8133 fnode_sess->auto_snd_tgt_disable =
8134 fnode_param->value[0];
8135 break;
8136 case ISCSI_FLASHNODE_DISCOVERY_SESS:
8137 fnode_sess->discovery_sess = fnode_param->value[0];
8138 break;
8139 case ISCSI_FLASHNODE_ENTRY_EN:
8140 fnode_sess->entry_state = fnode_param->value[0];
8141 break;
8142 case ISCSI_FLASHNODE_HDR_DGST_EN:
8143 fnode_conn->hdrdgst_en = fnode_param->value[0];
8144 break;
8145 case ISCSI_FLASHNODE_DATA_DGST_EN:
8146 fnode_conn->datadgst_en = fnode_param->value[0];
8147 break;
8148 case ISCSI_FLASHNODE_IMM_DATA_EN:
8149 fnode_sess->imm_data_en = fnode_param->value[0];
8150 break;
8151 case ISCSI_FLASHNODE_INITIAL_R2T_EN:
8152 fnode_sess->initial_r2t_en = fnode_param->value[0];
8153 break;
8154 case ISCSI_FLASHNODE_DATASEQ_INORDER:
8155 fnode_sess->dataseq_inorder_en = fnode_param->value[0];
8156 break;
8157 case ISCSI_FLASHNODE_PDU_INORDER:
8158 fnode_sess->pdu_inorder_en = fnode_param->value[0];
8159 break;
8160 case ISCSI_FLASHNODE_CHAP_AUTH_EN:
8161 fnode_sess->chap_auth_en = fnode_param->value[0];
8162 /* Invalidate chap index if chap auth is disabled */
8163 if (!fnode_sess->chap_auth_en)
8164 fnode_sess->chap_out_idx = INVALID_ENTRY;
8165
8166 break;
8167 case ISCSI_FLASHNODE_SNACK_REQ_EN:
8168 fnode_conn->snack_req_en = fnode_param->value[0];
8169 break;
8170 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN:
8171 fnode_sess->discovery_logout_en = fnode_param->value[0];
8172 break;
8173 case ISCSI_FLASHNODE_BIDI_CHAP_EN:
8174 fnode_sess->bidi_chap_en = fnode_param->value[0];
8175 break;
8176 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL:
8177 fnode_sess->discovery_auth_optional =
8178 fnode_param->value[0];
8179 break;
8180 case ISCSI_FLASHNODE_ERL:
8181 fnode_sess->erl = fnode_param->value[0];
8182 break;
8183 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT:
8184 fnode_conn->tcp_timestamp_stat = fnode_param->value[0];
8185 break;
8186 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE:
8187 fnode_conn->tcp_nagle_disable = fnode_param->value[0];
8188 break;
8189 case ISCSI_FLASHNODE_TCP_WSF_DISABLE:
8190 fnode_conn->tcp_wsf_disable = fnode_param->value[0];
8191 break;
8192 case ISCSI_FLASHNODE_TCP_TIMER_SCALE:
8193 fnode_conn->tcp_timer_scale = fnode_param->value[0];
8194 break;
8195 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN:
8196 fnode_conn->tcp_timestamp_en = fnode_param->value[0];
8197 break;
8198 case ISCSI_FLASHNODE_IP_FRAG_DISABLE:
8199 fnode_conn->fragment_disable = fnode_param->value[0];
8200 break;
8201 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH:
8202 fnode_conn->max_recv_dlength =
8203 *(unsigned *)fnode_param->value;
8204 break;
8205 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH:
8206 fnode_conn->max_xmit_dlength =
8207 *(unsigned *)fnode_param->value;
8208 break;
8209 case ISCSI_FLASHNODE_FIRST_BURST:
8210 fnode_sess->first_burst =
8211 *(unsigned *)fnode_param->value;
8212 break;
8213 case ISCSI_FLASHNODE_DEF_TIME2WAIT:
8214 fnode_sess->time2wait = *(uint16_t *)fnode_param->value;
8215 break;
8216 case ISCSI_FLASHNODE_DEF_TIME2RETAIN:
8217 fnode_sess->time2retain =
8218 *(uint16_t *)fnode_param->value;
8219 break;
8220 case ISCSI_FLASHNODE_MAX_R2T:
8221 fnode_sess->max_r2t =
8222 *(uint16_t *)fnode_param->value;
8223 break;
8224 case ISCSI_FLASHNODE_KEEPALIVE_TMO:
8225 fnode_conn->keepalive_timeout =
8226 *(uint16_t *)fnode_param->value;
8227 break;
8228 case ISCSI_FLASHNODE_ISID:
8229 memcpy(fnode_sess->isid, fnode_param->value,
8230 sizeof(fnode_sess->isid));
8231 break;
8232 case ISCSI_FLASHNODE_TSID:
8233 fnode_sess->tsid = *(uint16_t *)fnode_param->value;
8234 break;
8235 case ISCSI_FLASHNODE_PORT:
8236 fnode_conn->port = *(uint16_t *)fnode_param->value;
8237 break;
8238 case ISCSI_FLASHNODE_MAX_BURST:
8239 fnode_sess->max_burst = *(unsigned *)fnode_param->value;
8240 break;
8241 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO:
8242 fnode_sess->default_taskmgmt_timeout =
8243 *(uint16_t *)fnode_param->value;
8244 break;
8245 case ISCSI_FLASHNODE_IPADDR:
8246 memcpy(fnode_conn->ipaddress, fnode_param->value,
8247 IPv6_ADDR_LEN);
8248 break;
8249 case ISCSI_FLASHNODE_ALIAS:
8250 rc = iscsi_switch_str_param(&fnode_sess->targetalias,
8251 (char *)fnode_param->value);
8252 break;
8253 case ISCSI_FLASHNODE_REDIRECT_IPADDR:
8254 memcpy(fnode_conn->redirect_ipaddr, fnode_param->value,
8255 IPv6_ADDR_LEN);
8256 break;
8257 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE:
8258 fnode_conn->max_segment_size =
8259 *(unsigned *)fnode_param->value;
8260 break;
8261 case ISCSI_FLASHNODE_LOCAL_PORT:
8262 fnode_conn->local_port =
8263 *(uint16_t *)fnode_param->value;
8264 break;
8265 case ISCSI_FLASHNODE_IPV4_TOS:
8266 fnode_conn->ipv4_tos = fnode_param->value[0];
8267 break;
8268 case ISCSI_FLASHNODE_IPV6_TC:
8269 fnode_conn->ipv6_traffic_class = fnode_param->value[0];
8270 break;
8271 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL:
8272 fnode_conn->ipv6_flow_label = fnode_param->value[0];
8273 break;
8274 case ISCSI_FLASHNODE_NAME:
8275 rc = iscsi_switch_str_param(&fnode_sess->targetname,
8276 (char *)fnode_param->value);
8277 break;
8278 case ISCSI_FLASHNODE_TPGT:
8279 fnode_sess->tpgt = *(uint16_t *)fnode_param->value;
8280 break;
8281 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6:
8282 memcpy(fnode_conn->link_local_ipv6_addr,
8283 fnode_param->value, IPv6_ADDR_LEN);
8284 break;
8285 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX:
8286 fnode_sess->discovery_parent_idx =
8287 *(uint16_t *)fnode_param->value;
8288 break;
8289 case ISCSI_FLASHNODE_TCP_XMIT_WSF:
8290 fnode_conn->tcp_xmit_wsf =
8291 *(uint8_t *)fnode_param->value;
8292 break;
8293 case ISCSI_FLASHNODE_TCP_RECV_WSF:
8294 fnode_conn->tcp_recv_wsf =
8295 *(uint8_t *)fnode_param->value;
8296 break;
8297 case ISCSI_FLASHNODE_STATSN:
8298 fnode_conn->statsn = *(uint32_t *)fnode_param->value;
8299 break;
8300 case ISCSI_FLASHNODE_EXP_STATSN:
8301 fnode_conn->exp_statsn =
8302 *(uint32_t *)fnode_param->value;
8303 break;
8304 case ISCSI_FLASHNODE_CHAP_OUT_IDX:
8305 chap_out_idx = *(uint16_t *)fnode_param->value;
8306 if (!qla4xxx_get_uni_chap_at_index(ha,
8307 chap_tbl.name,
8308 chap_tbl.secret,
8309 chap_out_idx)) {
8310 fnode_sess->chap_out_idx = chap_out_idx;
8311 /* Enable chap auth if chap index is valid */
8312 fnode_sess->chap_auth_en = QL4_PARAM_ENABLE;
8313 }
8314 break;
8315 default:
8316 ql4_printk(KERN_ERR, ha,
8317 "%s: No such sysfs attribute\n", __func__);
8318 rc = -ENOSYS;
8319 goto exit_set_param;
8320 }
8321 }
8322
8323 rc = qla4xxx_sysfs_ddb_apply(fnode_sess, fnode_conn);
8324
8325 exit_set_param:
8326 return rc;
8327 }
8328
8329 /**
8330 * qla4xxx_sysfs_ddb_delete - Delete firmware DDB entry
8331 * @fnode_sess: pointer to session attrs of flash ddb entry
8332 *
8333 * This invalidates the flash ddb entry at the given index
8334 **/
qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session * fnode_sess)8335 static int qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess)
8336 {
8337 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
8338 struct scsi_qla_host *ha = to_qla_host(shost);
8339 uint32_t dev_db_start_offset;
8340 uint32_t dev_db_end_offset;
8341 struct dev_db_entry *fw_ddb_entry = NULL;
8342 dma_addr_t fw_ddb_entry_dma;
8343 uint16_t *ddb_cookie = NULL;
8344 size_t ddb_size = 0;
8345 void *pddb = NULL;
8346 int target_id;
8347 int rc = 0;
8348
8349 if (fnode_sess->is_boot_target) {
8350 rc = -EPERM;
8351 DEBUG2(ql4_printk(KERN_ERR, ha,
8352 "%s: Deletion of boot target entry is not permitted.\n",
8353 __func__));
8354 goto exit_ddb_del;
8355 }
8356
8357 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT)
8358 goto sysfs_ddb_del;
8359
8360 if (is_qla40XX(ha)) {
8361 dev_db_start_offset = FLASH_OFFSET_DB_INFO;
8362 dev_db_end_offset = FLASH_OFFSET_DB_END;
8363 dev_db_start_offset += (fnode_sess->target_id *
8364 sizeof(*fw_ddb_entry));
8365 ddb_size = sizeof(*fw_ddb_entry);
8366 } else {
8367 dev_db_start_offset = FLASH_RAW_ACCESS_ADDR +
8368 (ha->hw.flt_region_ddb << 2);
8369 /* flt_ddb_size is DDB table size for both ports
8370 * so divide it by 2 to calculate the offset for second port
8371 */
8372 if (ha->port_num == 1)
8373 dev_db_start_offset += (ha->hw.flt_ddb_size / 2);
8374
8375 dev_db_end_offset = dev_db_start_offset +
8376 (ha->hw.flt_ddb_size / 2);
8377
8378 dev_db_start_offset += (fnode_sess->target_id *
8379 sizeof(*fw_ddb_entry));
8380 dev_db_start_offset += offsetof(struct dev_db_entry, cookie);
8381
8382 ddb_size = sizeof(*ddb_cookie);
8383 }
8384
8385 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: start offset=%u, end offset=%u\n",
8386 __func__, dev_db_start_offset, dev_db_end_offset));
8387
8388 if (dev_db_start_offset > dev_db_end_offset) {
8389 rc = -EIO;
8390 DEBUG2(ql4_printk(KERN_ERR, ha, "%s:Invalid DDB index %u\n",
8391 __func__, fnode_sess->target_id));
8392 goto exit_ddb_del;
8393 }
8394
8395 pddb = dma_alloc_coherent(&ha->pdev->dev, ddb_size,
8396 &fw_ddb_entry_dma, GFP_KERNEL);
8397 if (!pddb) {
8398 rc = -ENOMEM;
8399 DEBUG2(ql4_printk(KERN_ERR, ha,
8400 "%s: Unable to allocate dma buffer\n",
8401 __func__));
8402 goto exit_ddb_del;
8403 }
8404
8405 if (is_qla40XX(ha)) {
8406 fw_ddb_entry = pddb;
8407 memset(fw_ddb_entry, 0, ddb_size);
8408 ddb_cookie = &fw_ddb_entry->cookie;
8409 } else {
8410 ddb_cookie = pddb;
8411 }
8412
8413 /* invalidate the cookie */
8414 *ddb_cookie = 0xFFEE;
8415 qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset,
8416 ddb_size, FLASH_OPT_RMW_COMMIT);
8417
8418 sysfs_ddb_del:
8419 target_id = fnode_sess->target_id;
8420 iscsi_destroy_flashnode_sess(fnode_sess);
8421 ql4_printk(KERN_INFO, ha,
8422 "%s: session and conn entries for flashnode %u of host %lu deleted\n",
8423 __func__, target_id, ha->host_no);
8424 exit_ddb_del:
8425 if (pddb)
8426 dma_free_coherent(&ha->pdev->dev, ddb_size, pddb,
8427 fw_ddb_entry_dma);
8428 return rc;
8429 }
8430
8431 /**
8432 * qla4xxx_sysfs_ddb_export - Create sysfs entries for firmware DDBs
8433 * @ha: pointer to adapter structure
8434 *
8435 * Export the firmware DDB for all send targets and normal targets to sysfs.
8436 **/
qla4xxx_sysfs_ddb_export(struct scsi_qla_host * ha)8437 int qla4xxx_sysfs_ddb_export(struct scsi_qla_host *ha)
8438 {
8439 struct dev_db_entry *fw_ddb_entry = NULL;
8440 dma_addr_t fw_ddb_entry_dma;
8441 uint16_t max_ddbs;
8442 uint16_t idx = 0;
8443 int ret = QLA_SUCCESS;
8444
8445 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev,
8446 sizeof(*fw_ddb_entry),
8447 &fw_ddb_entry_dma, GFP_KERNEL);
8448 if (!fw_ddb_entry) {
8449 DEBUG2(ql4_printk(KERN_ERR, ha,
8450 "%s: Unable to allocate dma buffer\n",
8451 __func__));
8452 return -ENOMEM;
8453 }
8454
8455 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES :
8456 MAX_DEV_DB_ENTRIES;
8457
8458 for (idx = 0; idx < max_ddbs; idx++) {
8459 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry, fw_ddb_entry_dma,
8460 idx))
8461 continue;
8462
8463 ret = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 0);
8464 if (ret) {
8465 ret = -EIO;
8466 break;
8467 }
8468 }
8469
8470 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry,
8471 fw_ddb_entry_dma);
8472
8473 return ret;
8474 }
8475
qla4xxx_sysfs_ddb_remove(struct scsi_qla_host * ha)8476 static void qla4xxx_sysfs_ddb_remove(struct scsi_qla_host *ha)
8477 {
8478 iscsi_destroy_all_flashnode(ha->host);
8479 }
8480
8481 /**
8482 * qla4xxx_build_ddb_list - Build ddb list and setup sessions
8483 * @ha: pointer to adapter structure
8484 * @is_reset: Is this init path or reset path
8485 *
8486 * Create a list of sendtargets (st) from firmware DDBs, issue send targets
8487 * using connection open, then create the list of normal targets (nt)
8488 * from firmware DDBs. Based on the list of nt setup session and connection
8489 * objects.
8490 **/
qla4xxx_build_ddb_list(struct scsi_qla_host * ha,int is_reset)8491 void qla4xxx_build_ddb_list(struct scsi_qla_host *ha, int is_reset)
8492 {
8493 uint16_t tmo = 0;
8494 struct list_head list_st, list_nt;
8495 struct qla_ddb_index *st_ddb_idx, *st_ddb_idx_tmp;
8496 unsigned long wtime;
8497
8498 if (!test_bit(AF_LINK_UP, &ha->flags)) {
8499 set_bit(AF_BUILD_DDB_LIST, &ha->flags);
8500 ha->is_reset = is_reset;
8501 return;
8502 }
8503
8504 INIT_LIST_HEAD(&list_st);
8505 INIT_LIST_HEAD(&list_nt);
8506
8507 qla4xxx_build_st_list(ha, &list_st);
8508
8509 /* Before issuing conn open mbox, ensure all IPs states are configured
8510 * Note, conn open fails if IPs are not configured
8511 */
8512 qla4xxx_wait_for_ip_configuration(ha);
8513
8514 /* Go thru the STs and fire the sendtargets by issuing conn open mbx */
8515 list_for_each_entry_safe(st_ddb_idx, st_ddb_idx_tmp, &list_st, list) {
8516 qla4xxx_conn_open(ha, st_ddb_idx->fw_ddb_idx);
8517 }
8518
8519 /* Wait to ensure all sendtargets are done for min 12 sec wait */
8520 tmo = ((ha->def_timeout > LOGIN_TOV) &&
8521 (ha->def_timeout < LOGIN_TOV * 10) ?
8522 ha->def_timeout : LOGIN_TOV);
8523
8524 DEBUG2(ql4_printk(KERN_INFO, ha,
8525 "Default time to wait for build ddb %d\n", tmo));
8526
8527 wtime = jiffies + (HZ * tmo);
8528 do {
8529 if (list_empty(&list_st))
8530 break;
8531
8532 qla4xxx_remove_failed_ddb(ha, &list_st);
8533 schedule_timeout_uninterruptible(HZ / 10);
8534 } while (time_after(wtime, jiffies));
8535
8536
8537 qla4xxx_build_nt_list(ha, &list_nt, &list_st, is_reset);
8538
8539 qla4xxx_free_ddb_list(&list_st);
8540 qla4xxx_free_ddb_list(&list_nt);
8541
8542 qla4xxx_free_ddb_index(ha);
8543 }
8544
8545 /**
8546 * qla4xxx_wait_login_resp_boot_tgt - Wait for iSCSI boot target login
8547 * response.
8548 * @ha: pointer to adapter structure
8549 *
8550 * When the boot entry is normal iSCSI target then DF_BOOT_TGT flag will be
8551 * set in DDB and we will wait for login response of boot targets during
8552 * probe.
8553 **/
qla4xxx_wait_login_resp_boot_tgt(struct scsi_qla_host * ha)8554 static void qla4xxx_wait_login_resp_boot_tgt(struct scsi_qla_host *ha)
8555 {
8556 struct ddb_entry *ddb_entry;
8557 struct dev_db_entry *fw_ddb_entry = NULL;
8558 dma_addr_t fw_ddb_entry_dma;
8559 unsigned long wtime;
8560 uint32_t ddb_state;
8561 int max_ddbs, idx, ret;
8562
8563 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
8564 MAX_DEV_DB_ENTRIES;
8565
8566 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8567 &fw_ddb_entry_dma, GFP_KERNEL);
8568 if (!fw_ddb_entry) {
8569 ql4_printk(KERN_ERR, ha,
8570 "%s: Unable to allocate dma buffer\n", __func__);
8571 goto exit_login_resp;
8572 }
8573
8574 wtime = jiffies + (HZ * BOOT_LOGIN_RESP_TOV);
8575
8576 for (idx = 0; idx < max_ddbs; idx++) {
8577 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
8578 if (ddb_entry == NULL)
8579 continue;
8580
8581 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) {
8582 DEBUG2(ql4_printk(KERN_INFO, ha,
8583 "%s: DDB index [%d]\n", __func__,
8584 ddb_entry->fw_ddb_index));
8585 do {
8586 ret = qla4xxx_get_fwddb_entry(ha,
8587 ddb_entry->fw_ddb_index,
8588 fw_ddb_entry, fw_ddb_entry_dma,
8589 NULL, NULL, &ddb_state, NULL,
8590 NULL, NULL);
8591 if (ret == QLA_ERROR)
8592 goto exit_login_resp;
8593
8594 if ((ddb_state == DDB_DS_SESSION_ACTIVE) ||
8595 (ddb_state == DDB_DS_SESSION_FAILED))
8596 break;
8597
8598 schedule_timeout_uninterruptible(HZ);
8599
8600 } while ((time_after(wtime, jiffies)));
8601
8602 if (!time_after(wtime, jiffies)) {
8603 DEBUG2(ql4_printk(KERN_INFO, ha,
8604 "%s: Login response wait timer expired\n",
8605 __func__));
8606 goto exit_login_resp;
8607 }
8608 }
8609 }
8610
8611 exit_login_resp:
8612 if (fw_ddb_entry)
8613 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8614 fw_ddb_entry, fw_ddb_entry_dma);
8615 }
8616
8617 /**
8618 * qla4xxx_probe_adapter - callback function to probe HBA
8619 * @pdev: pointer to pci_dev structure
8620 * @ent: pointer to pci_device entry
8621 *
8622 * This routine will probe for Qlogic 4xxx iSCSI host adapters.
8623 * It returns zero if successful. It also initializes all data necessary for
8624 * the driver.
8625 **/
qla4xxx_probe_adapter(struct pci_dev * pdev,const struct pci_device_id * ent)8626 static int qla4xxx_probe_adapter(struct pci_dev *pdev,
8627 const struct pci_device_id *ent)
8628 {
8629 int ret = -ENODEV, status;
8630 struct Scsi_Host *host;
8631 struct scsi_qla_host *ha;
8632 uint8_t init_retry_count = 0;
8633 char buf[34];
8634 struct qla4_8xxx_legacy_intr_set *nx_legacy_intr;
8635 uint32_t dev_state;
8636
8637 if (pci_enable_device(pdev))
8638 return -1;
8639
8640 host = iscsi_host_alloc(&qla4xxx_driver_template, sizeof(*ha), 0);
8641 if (host == NULL) {
8642 printk(KERN_WARNING
8643 "qla4xxx: Couldn't allocate host from scsi layer!\n");
8644 goto probe_disable_device;
8645 }
8646
8647 /* Clear our data area */
8648 ha = to_qla_host(host);
8649 memset(ha, 0, sizeof(*ha));
8650
8651 /* Save the information from PCI BIOS. */
8652 ha->pdev = pdev;
8653 ha->host = host;
8654 ha->host_no = host->host_no;
8655 ha->func_num = PCI_FUNC(ha->pdev->devfn);
8656
8657 pci_enable_pcie_error_reporting(pdev);
8658
8659 /* Setup Runtime configurable options */
8660 if (is_qla8022(ha)) {
8661 ha->isp_ops = &qla4_82xx_isp_ops;
8662 ha->reg_tbl = (uint32_t *) qla4_82xx_reg_tbl;
8663 ha->qdr_sn_window = -1;
8664 ha->ddr_mn_window = -1;
8665 ha->curr_window = 255;
8666 nx_legacy_intr = &legacy_intr[ha->func_num];
8667 ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit;
8668 ha->nx_legacy_intr.tgt_status_reg =
8669 nx_legacy_intr->tgt_status_reg;
8670 ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg;
8671 ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg;
8672 } else if (is_qla8032(ha) || is_qla8042(ha)) {
8673 ha->isp_ops = &qla4_83xx_isp_ops;
8674 ha->reg_tbl = (uint32_t *)qla4_83xx_reg_tbl;
8675 } else {
8676 ha->isp_ops = &qla4xxx_isp_ops;
8677 }
8678
8679 if (is_qla80XX(ha)) {
8680 rwlock_init(&ha->hw_lock);
8681 ha->pf_bit = ha->func_num << 16;
8682 /* Set EEH reset type to fundamental if required by hba */
8683 pdev->needs_freset = 1;
8684 }
8685
8686 /* Configure PCI I/O space. */
8687 ret = ha->isp_ops->iospace_config(ha);
8688 if (ret)
8689 goto probe_failed_ioconfig;
8690
8691 ql4_printk(KERN_INFO, ha, "Found an ISP%04x, irq %d, iobase 0x%p\n",
8692 pdev->device, pdev->irq, ha->reg);
8693
8694 qla4xxx_config_dma_addressing(ha);
8695
8696 /* Initialize lists and spinlocks. */
8697 INIT_LIST_HEAD(&ha->free_srb_q);
8698
8699 mutex_init(&ha->mbox_sem);
8700 mutex_init(&ha->chap_sem);
8701 init_completion(&ha->mbx_intr_comp);
8702 init_completion(&ha->disable_acb_comp);
8703 init_completion(&ha->idc_comp);
8704 init_completion(&ha->link_up_comp);
8705
8706 spin_lock_init(&ha->hardware_lock);
8707 spin_lock_init(&ha->work_lock);
8708
8709 /* Initialize work list */
8710 INIT_LIST_HEAD(&ha->work_list);
8711
8712 /* Allocate dma buffers */
8713 if (qla4xxx_mem_alloc(ha)) {
8714 ql4_printk(KERN_WARNING, ha,
8715 "[ERROR] Failed to allocate memory for adapter\n");
8716
8717 ret = -ENOMEM;
8718 goto probe_failed;
8719 }
8720
8721 host->cmd_per_lun = 3;
8722 host->max_channel = 0;
8723 host->max_lun = MAX_LUNS - 1;
8724 host->max_id = MAX_TARGETS;
8725 host->max_cmd_len = IOCB_MAX_CDB_LEN;
8726 host->can_queue = MAX_SRBS ;
8727 host->transportt = qla4xxx_scsi_transport;
8728
8729 pci_set_drvdata(pdev, ha);
8730
8731 ret = scsi_add_host(host, &pdev->dev);
8732 if (ret)
8733 goto probe_failed;
8734
8735 if (is_qla80XX(ha))
8736 qla4_8xxx_get_flash_info(ha);
8737
8738 if (is_qla8032(ha) || is_qla8042(ha)) {
8739 qla4_83xx_read_reset_template(ha);
8740 /*
8741 * NOTE: If ql4dontresethba==1, set IDC_CTRL DONTRESET_BIT0.
8742 * If DONRESET_BIT0 is set, drivers should not set dev_state
8743 * to NEED_RESET. But if NEED_RESET is set, drivers should
8744 * should honor the reset.
8745 */
8746 if (ql4xdontresethba == 1)
8747 qla4_83xx_set_idc_dontreset(ha);
8748 }
8749
8750 /*
8751 * Initialize the Host adapter request/response queues and
8752 * firmware
8753 * NOTE: interrupts enabled upon successful completion
8754 */
8755 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER);
8756
8757 /* Dont retry adapter initialization if IRQ allocation failed */
8758 if (is_qla80XX(ha) && (status == QLA_ERROR))
8759 goto skip_retry_init;
8760
8761 while ((!test_bit(AF_ONLINE, &ha->flags)) &&
8762 init_retry_count++ < MAX_INIT_RETRIES) {
8763
8764 if (is_qla80XX(ha)) {
8765 ha->isp_ops->idc_lock(ha);
8766 dev_state = qla4_8xxx_rd_direct(ha,
8767 QLA8XXX_CRB_DEV_STATE);
8768 ha->isp_ops->idc_unlock(ha);
8769 if (dev_state == QLA8XXX_DEV_FAILED) {
8770 ql4_printk(KERN_WARNING, ha, "%s: don't retry "
8771 "initialize adapter. H/W is in failed state\n",
8772 __func__);
8773 break;
8774 }
8775 }
8776 DEBUG2(printk("scsi: %s: retrying adapter initialization "
8777 "(%d)\n", __func__, init_retry_count));
8778
8779 if (ha->isp_ops->reset_chip(ha) == QLA_ERROR)
8780 continue;
8781
8782 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER);
8783 if (is_qla80XX(ha) && (status == QLA_ERROR)) {
8784 if (qla4_8xxx_check_init_adapter_retry(ha) == QLA_ERROR)
8785 goto skip_retry_init;
8786 }
8787 }
8788
8789 skip_retry_init:
8790 if (!test_bit(AF_ONLINE, &ha->flags)) {
8791 ql4_printk(KERN_WARNING, ha, "Failed to initialize adapter\n");
8792
8793 if ((is_qla8022(ha) && ql4xdontresethba) ||
8794 ((is_qla8032(ha) || is_qla8042(ha)) &&
8795 qla4_83xx_idc_dontreset(ha))) {
8796 /* Put the device in failed state. */
8797 DEBUG2(printk(KERN_ERR "HW STATE: FAILED\n"));
8798 ha->isp_ops->idc_lock(ha);
8799 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
8800 QLA8XXX_DEV_FAILED);
8801 ha->isp_ops->idc_unlock(ha);
8802 }
8803 ret = -ENODEV;
8804 goto remove_host;
8805 }
8806
8807 /* Startup the kernel thread for this host adapter. */
8808 DEBUG2(printk("scsi: %s: Starting kernel thread for "
8809 "qla4xxx_dpc\n", __func__));
8810 sprintf(buf, "qla4xxx_%lu_dpc", ha->host_no);
8811 ha->dpc_thread = create_singlethread_workqueue(buf);
8812 if (!ha->dpc_thread) {
8813 ql4_printk(KERN_WARNING, ha, "Unable to start DPC thread!\n");
8814 ret = -ENODEV;
8815 goto remove_host;
8816 }
8817 INIT_WORK(&ha->dpc_work, qla4xxx_do_dpc);
8818
8819 ha->task_wq = alloc_workqueue("qla4xxx_%lu_task", WQ_MEM_RECLAIM, 1,
8820 ha->host_no);
8821 if (!ha->task_wq) {
8822 ql4_printk(KERN_WARNING, ha, "Unable to start task thread!\n");
8823 ret = -ENODEV;
8824 goto remove_host;
8825 }
8826
8827 /*
8828 * For ISP-8XXX, request_irqs is called in qla4_8xxx_load_risc
8829 * (which is called indirectly by qla4xxx_initialize_adapter),
8830 * so that irqs will be registered after crbinit but before
8831 * mbx_intr_enable.
8832 */
8833 if (is_qla40XX(ha)) {
8834 ret = qla4xxx_request_irqs(ha);
8835 if (ret) {
8836 ql4_printk(KERN_WARNING, ha, "Failed to reserve "
8837 "interrupt %d already in use.\n", pdev->irq);
8838 goto remove_host;
8839 }
8840 }
8841
8842 pci_save_state(ha->pdev);
8843 ha->isp_ops->enable_intrs(ha);
8844
8845 /* Start timer thread. */
8846 qla4xxx_start_timer(ha, 1);
8847
8848 set_bit(AF_INIT_DONE, &ha->flags);
8849
8850 qla4_8xxx_alloc_sysfs_attr(ha);
8851
8852 printk(KERN_INFO
8853 " QLogic iSCSI HBA Driver version: %s\n"
8854 " QLogic ISP%04x @ %s, host#=%ld, fw=%02d.%02d.%02d.%02d\n",
8855 qla4xxx_version_str, ha->pdev->device, pci_name(ha->pdev),
8856 ha->host_no, ha->fw_info.fw_major, ha->fw_info.fw_minor,
8857 ha->fw_info.fw_patch, ha->fw_info.fw_build);
8858
8859 /* Set the driver version */
8860 if (is_qla80XX(ha))
8861 qla4_8xxx_set_param(ha, SET_DRVR_VERSION);
8862
8863 if (qla4xxx_setup_boot_info(ha))
8864 ql4_printk(KERN_ERR, ha,
8865 "%s: No iSCSI boot target configured\n", __func__);
8866
8867 set_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags);
8868 /* Perform the build ddb list and login to each */
8869 qla4xxx_build_ddb_list(ha, INIT_ADAPTER);
8870 iscsi_host_for_each_session(ha->host, qla4xxx_login_flash_ddb);
8871 qla4xxx_wait_login_resp_boot_tgt(ha);
8872
8873 qla4xxx_create_chap_list(ha);
8874
8875 qla4xxx_create_ifaces(ha);
8876 return 0;
8877
8878 remove_host:
8879 scsi_remove_host(ha->host);
8880
8881 probe_failed:
8882 qla4xxx_free_adapter(ha);
8883
8884 probe_failed_ioconfig:
8885 pci_disable_pcie_error_reporting(pdev);
8886 scsi_host_put(ha->host);
8887
8888 probe_disable_device:
8889 pci_disable_device(pdev);
8890
8891 return ret;
8892 }
8893
8894 /**
8895 * qla4xxx_prevent_other_port_reinit - prevent other port from re-initialize
8896 * @ha: pointer to adapter structure
8897 *
8898 * Mark the other ISP-4xxx port to indicate that the driver is being removed,
8899 * so that the other port will not re-initialize while in the process of
8900 * removing the ha due to driver unload or hba hotplug.
8901 **/
qla4xxx_prevent_other_port_reinit(struct scsi_qla_host * ha)8902 static void qla4xxx_prevent_other_port_reinit(struct scsi_qla_host *ha)
8903 {
8904 struct scsi_qla_host *other_ha = NULL;
8905 struct pci_dev *other_pdev = NULL;
8906 int fn = ISP4XXX_PCI_FN_2;
8907
8908 /*iscsi function numbers for ISP4xxx is 1 and 3*/
8909 if (PCI_FUNC(ha->pdev->devfn) & BIT_1)
8910 fn = ISP4XXX_PCI_FN_1;
8911
8912 other_pdev =
8913 pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus),
8914 ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
8915 fn));
8916
8917 /* Get other_ha if other_pdev is valid and state is enable*/
8918 if (other_pdev) {
8919 if (atomic_read(&other_pdev->enable_cnt)) {
8920 other_ha = pci_get_drvdata(other_pdev);
8921 if (other_ha) {
8922 set_bit(AF_HA_REMOVAL, &other_ha->flags);
8923 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: "
8924 "Prevent %s reinit\n", __func__,
8925 dev_name(&other_ha->pdev->dev)));
8926 }
8927 }
8928 pci_dev_put(other_pdev);
8929 }
8930 }
8931
qla4xxx_destroy_ddb(struct scsi_qla_host * ha,struct ddb_entry * ddb_entry)8932 static void qla4xxx_destroy_ddb(struct scsi_qla_host *ha,
8933 struct ddb_entry *ddb_entry)
8934 {
8935 struct dev_db_entry *fw_ddb_entry = NULL;
8936 dma_addr_t fw_ddb_entry_dma;
8937 unsigned long wtime;
8938 uint32_t ddb_state;
8939 int options;
8940 int status;
8941
8942 options = LOGOUT_OPTION_CLOSE_SESSION;
8943 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR) {
8944 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__);
8945 goto clear_ddb;
8946 }
8947
8948 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8949 &fw_ddb_entry_dma, GFP_KERNEL);
8950 if (!fw_ddb_entry) {
8951 ql4_printk(KERN_ERR, ha,
8952 "%s: Unable to allocate dma buffer\n", __func__);
8953 goto clear_ddb;
8954 }
8955
8956 wtime = jiffies + (HZ * LOGOUT_TOV);
8957 do {
8958 status = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
8959 fw_ddb_entry, fw_ddb_entry_dma,
8960 NULL, NULL, &ddb_state, NULL,
8961 NULL, NULL);
8962 if (status == QLA_ERROR)
8963 goto free_ddb;
8964
8965 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) ||
8966 (ddb_state == DDB_DS_SESSION_FAILED))
8967 goto free_ddb;
8968
8969 schedule_timeout_uninterruptible(HZ);
8970 } while ((time_after(wtime, jiffies)));
8971
8972 free_ddb:
8973 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8974 fw_ddb_entry, fw_ddb_entry_dma);
8975 clear_ddb:
8976 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
8977 }
8978
qla4xxx_destroy_fw_ddb_session(struct scsi_qla_host * ha)8979 static void qla4xxx_destroy_fw_ddb_session(struct scsi_qla_host *ha)
8980 {
8981 struct ddb_entry *ddb_entry;
8982 int idx;
8983
8984 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
8985
8986 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
8987 if ((ddb_entry != NULL) &&
8988 (ddb_entry->ddb_type == FLASH_DDB)) {
8989
8990 qla4xxx_destroy_ddb(ha, ddb_entry);
8991 /*
8992 * we have decremented the reference count of the driver
8993 * when we setup the session to have the driver unload
8994 * to be seamless without actually destroying the
8995 * session
8996 **/
8997 try_module_get(qla4xxx_iscsi_transport.owner);
8998 iscsi_destroy_endpoint(ddb_entry->conn->ep);
8999 qla4xxx_free_ddb(ha, ddb_entry);
9000 iscsi_session_teardown(ddb_entry->sess);
9001 }
9002 }
9003 }
9004 /**
9005 * qla4xxx_remove_adapter - callback function to remove adapter.
9006 * @pdev: PCI device pointer
9007 **/
qla4xxx_remove_adapter(struct pci_dev * pdev)9008 static void qla4xxx_remove_adapter(struct pci_dev *pdev)
9009 {
9010 struct scsi_qla_host *ha;
9011
9012 /*
9013 * If the PCI device is disabled then it means probe_adapter had
9014 * failed and resources already cleaned up on probe_adapter exit.
9015 */
9016 if (!pci_is_enabled(pdev))
9017 return;
9018
9019 ha = pci_get_drvdata(pdev);
9020
9021 if (is_qla40XX(ha))
9022 qla4xxx_prevent_other_port_reinit(ha);
9023
9024 /* destroy iface from sysfs */
9025 qla4xxx_destroy_ifaces(ha);
9026
9027 if ((!ql4xdisablesysfsboot) && ha->boot_kset)
9028 iscsi_boot_destroy_kset(ha->boot_kset);
9029
9030 qla4xxx_destroy_fw_ddb_session(ha);
9031 qla4_8xxx_free_sysfs_attr(ha);
9032
9033 qla4xxx_sysfs_ddb_remove(ha);
9034 scsi_remove_host(ha->host);
9035
9036 qla4xxx_free_adapter(ha);
9037
9038 scsi_host_put(ha->host);
9039
9040 pci_disable_pcie_error_reporting(pdev);
9041 pci_disable_device(pdev);
9042 }
9043
9044 /**
9045 * qla4xxx_config_dma_addressing() - Configure OS DMA addressing method.
9046 * @ha: HA context
9047 */
qla4xxx_config_dma_addressing(struct scsi_qla_host * ha)9048 static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha)
9049 {
9050 /* Update our PCI device dma_mask for full 64 bit mask */
9051 if (dma_set_mask_and_coherent(&ha->pdev->dev, DMA_BIT_MASK(64))) {
9052 dev_dbg(&ha->pdev->dev,
9053 "Failed to set 64 bit PCI consistent mask; "
9054 "using 32 bit.\n");
9055 dma_set_mask_and_coherent(&ha->pdev->dev, DMA_BIT_MASK(32));
9056 }
9057 }
9058
qla4xxx_slave_alloc(struct scsi_device * sdev)9059 static int qla4xxx_slave_alloc(struct scsi_device *sdev)
9060 {
9061 struct iscsi_cls_session *cls_sess;
9062 struct iscsi_session *sess;
9063 struct ddb_entry *ddb;
9064 int queue_depth = QL4_DEF_QDEPTH;
9065
9066 cls_sess = starget_to_session(sdev->sdev_target);
9067 sess = cls_sess->dd_data;
9068 ddb = sess->dd_data;
9069
9070 sdev->hostdata = ddb;
9071
9072 if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU)
9073 queue_depth = ql4xmaxqdepth;
9074
9075 scsi_change_queue_depth(sdev, queue_depth);
9076 return 0;
9077 }
9078
9079 /**
9080 * qla4xxx_del_from_active_array - returns an active srb
9081 * @ha: Pointer to host adapter structure.
9082 * @index: index into the active_array
9083 *
9084 * This routine removes and returns the srb at the specified index
9085 **/
qla4xxx_del_from_active_array(struct scsi_qla_host * ha,uint32_t index)9086 struct srb *qla4xxx_del_from_active_array(struct scsi_qla_host *ha,
9087 uint32_t index)
9088 {
9089 struct srb *srb = NULL;
9090 struct scsi_cmnd *cmd = NULL;
9091
9092 cmd = scsi_host_find_tag(ha->host, index);
9093 if (!cmd)
9094 return srb;
9095
9096 srb = (struct srb *)CMD_SP(cmd);
9097 if (!srb)
9098 return srb;
9099
9100 /* update counters */
9101 if (srb->flags & SRB_DMA_VALID) {
9102 ha->iocb_cnt -= srb->iocb_cnt;
9103 if (srb->cmd)
9104 srb->cmd->host_scribble =
9105 (unsigned char *)(unsigned long) MAX_SRBS;
9106 }
9107 return srb;
9108 }
9109
9110 /**
9111 * qla4xxx_eh_wait_on_command - waits for command to be returned by firmware
9112 * @ha: Pointer to host adapter structure.
9113 * @cmd: Scsi Command to wait on.
9114 *
9115 * This routine waits for the command to be returned by the Firmware
9116 * for some max time.
9117 **/
qla4xxx_eh_wait_on_command(struct scsi_qla_host * ha,struct scsi_cmnd * cmd)9118 static int qla4xxx_eh_wait_on_command(struct scsi_qla_host *ha,
9119 struct scsi_cmnd *cmd)
9120 {
9121 int done = 0;
9122 struct srb *rp;
9123 uint32_t max_wait_time = EH_WAIT_CMD_TOV;
9124 int ret = SUCCESS;
9125
9126 /* Dont wait on command if PCI error is being handled
9127 * by PCI AER driver
9128 */
9129 if (unlikely(pci_channel_offline(ha->pdev)) ||
9130 (test_bit(AF_EEH_BUSY, &ha->flags))) {
9131 ql4_printk(KERN_WARNING, ha, "scsi%ld: Return from %s\n",
9132 ha->host_no, __func__);
9133 return ret;
9134 }
9135
9136 do {
9137 /* Checking to see if its returned to OS */
9138 rp = (struct srb *) CMD_SP(cmd);
9139 if (rp == NULL) {
9140 done++;
9141 break;
9142 }
9143
9144 msleep(2000);
9145 } while (max_wait_time--);
9146
9147 return done;
9148 }
9149
9150 /**
9151 * qla4xxx_wait_for_hba_online - waits for HBA to come online
9152 * @ha: Pointer to host adapter structure
9153 **/
qla4xxx_wait_for_hba_online(struct scsi_qla_host * ha)9154 static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha)
9155 {
9156 unsigned long wait_online;
9157
9158 wait_online = jiffies + (HBA_ONLINE_TOV * HZ);
9159 while (time_before(jiffies, wait_online)) {
9160
9161 if (adapter_up(ha))
9162 return QLA_SUCCESS;
9163
9164 msleep(2000);
9165 }
9166
9167 return QLA_ERROR;
9168 }
9169
9170 /**
9171 * qla4xxx_eh_wait_for_commands - wait for active cmds to finish.
9172 * @ha: pointer to HBA
9173 * @stgt: pointer to SCSI target
9174 * @sdev: pointer to SCSI device
9175 *
9176 * This function waits for all outstanding commands to a lun to complete. It
9177 * returns 0 if all pending commands are returned and 1 otherwise.
9178 **/
qla4xxx_eh_wait_for_commands(struct scsi_qla_host * ha,struct scsi_target * stgt,struct scsi_device * sdev)9179 static int qla4xxx_eh_wait_for_commands(struct scsi_qla_host *ha,
9180 struct scsi_target *stgt,
9181 struct scsi_device *sdev)
9182 {
9183 int cnt;
9184 int status = 0;
9185 struct scsi_cmnd *cmd;
9186
9187 /*
9188 * Waiting for all commands for the designated target or dev
9189 * in the active array
9190 */
9191 for (cnt = 0; cnt < ha->host->can_queue; cnt++) {
9192 cmd = scsi_host_find_tag(ha->host, cnt);
9193 if (cmd && stgt == scsi_target(cmd->device) &&
9194 (!sdev || sdev == cmd->device)) {
9195 if (!qla4xxx_eh_wait_on_command(ha, cmd)) {
9196 status++;
9197 break;
9198 }
9199 }
9200 }
9201 return status;
9202 }
9203
9204 /**
9205 * qla4xxx_eh_abort - callback for abort task.
9206 * @cmd: Pointer to Linux's SCSI command structure
9207 *
9208 * This routine is called by the Linux OS to abort the specified
9209 * command.
9210 **/
qla4xxx_eh_abort(struct scsi_cmnd * cmd)9211 static int qla4xxx_eh_abort(struct scsi_cmnd *cmd)
9212 {
9213 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
9214 unsigned int id = cmd->device->id;
9215 uint64_t lun = cmd->device->lun;
9216 unsigned long flags;
9217 struct srb *srb = NULL;
9218 int ret = SUCCESS;
9219 int wait = 0;
9220 int rval;
9221
9222 ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%llu: Abort command issued cmd=%p, cdb=0x%x\n",
9223 ha->host_no, id, lun, cmd, cmd->cmnd[0]);
9224
9225 rval = qla4xxx_isp_check_reg(ha);
9226 if (rval != QLA_SUCCESS) {
9227 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n");
9228 return FAILED;
9229 }
9230
9231 spin_lock_irqsave(&ha->hardware_lock, flags);
9232 srb = (struct srb *) CMD_SP(cmd);
9233 if (!srb) {
9234 spin_unlock_irqrestore(&ha->hardware_lock, flags);
9235 ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%llu: Specified command has already completed.\n",
9236 ha->host_no, id, lun);
9237 return SUCCESS;
9238 }
9239 kref_get(&srb->srb_ref);
9240 spin_unlock_irqrestore(&ha->hardware_lock, flags);
9241
9242 if (qla4xxx_abort_task(ha, srb) != QLA_SUCCESS) {
9243 DEBUG3(printk("scsi%ld:%d:%llu: Abort_task mbx failed.\n",
9244 ha->host_no, id, lun));
9245 ret = FAILED;
9246 } else {
9247 DEBUG3(printk("scsi%ld:%d:%llu: Abort_task mbx success.\n",
9248 ha->host_no, id, lun));
9249 wait = 1;
9250 }
9251
9252 kref_put(&srb->srb_ref, qla4xxx_srb_compl);
9253
9254 /* Wait for command to complete */
9255 if (wait) {
9256 if (!qla4xxx_eh_wait_on_command(ha, cmd)) {
9257 DEBUG2(printk("scsi%ld:%d:%llu: Abort handler timed out\n",
9258 ha->host_no, id, lun));
9259 ret = FAILED;
9260 }
9261 }
9262
9263 ql4_printk(KERN_INFO, ha,
9264 "scsi%ld:%d:%llu: Abort command - %s\n",
9265 ha->host_no, id, lun, (ret == SUCCESS) ? "succeeded" : "failed");
9266
9267 return ret;
9268 }
9269
9270 /**
9271 * qla4xxx_eh_device_reset - callback for target reset.
9272 * @cmd: Pointer to Linux's SCSI command structure
9273 *
9274 * This routine is called by the Linux OS to reset all luns on the
9275 * specified target.
9276 **/
qla4xxx_eh_device_reset(struct scsi_cmnd * cmd)9277 static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd)
9278 {
9279 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
9280 struct ddb_entry *ddb_entry = cmd->device->hostdata;
9281 int ret = FAILED, stat;
9282 int rval;
9283
9284 if (!ddb_entry)
9285 return ret;
9286
9287 ret = iscsi_block_scsi_eh(cmd);
9288 if (ret)
9289 return ret;
9290 ret = FAILED;
9291
9292 ql4_printk(KERN_INFO, ha,
9293 "scsi%ld:%d:%d:%llu: DEVICE RESET ISSUED.\n", ha->host_no,
9294 cmd->device->channel, cmd->device->id, cmd->device->lun);
9295
9296 DEBUG2(printk(KERN_INFO
9297 "scsi%ld: DEVICE_RESET cmd=%p jiffies = 0x%lx, to=%x,"
9298 "dpc_flags=%lx, status=%x allowed=%d\n", ha->host_no,
9299 cmd, jiffies, cmd->request->timeout / HZ,
9300 ha->dpc_flags, cmd->result, cmd->allowed));
9301
9302 rval = qla4xxx_isp_check_reg(ha);
9303 if (rval != QLA_SUCCESS) {
9304 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n");
9305 return FAILED;
9306 }
9307
9308 /* FIXME: wait for hba to go online */
9309 stat = qla4xxx_reset_lun(ha, ddb_entry, cmd->device->lun);
9310 if (stat != QLA_SUCCESS) {
9311 ql4_printk(KERN_INFO, ha, "DEVICE RESET FAILED. %d\n", stat);
9312 goto eh_dev_reset_done;
9313 }
9314
9315 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device),
9316 cmd->device)) {
9317 ql4_printk(KERN_INFO, ha,
9318 "DEVICE RESET FAILED - waiting for "
9319 "commands.\n");
9320 goto eh_dev_reset_done;
9321 }
9322
9323 /* Send marker. */
9324 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun,
9325 MM_LUN_RESET) != QLA_SUCCESS)
9326 goto eh_dev_reset_done;
9327
9328 ql4_printk(KERN_INFO, ha,
9329 "scsi(%ld:%d:%d:%llu): DEVICE RESET SUCCEEDED.\n",
9330 ha->host_no, cmd->device->channel, cmd->device->id,
9331 cmd->device->lun);
9332
9333 ret = SUCCESS;
9334
9335 eh_dev_reset_done:
9336
9337 return ret;
9338 }
9339
9340 /**
9341 * qla4xxx_eh_target_reset - callback for target reset.
9342 * @cmd: Pointer to Linux's SCSI command structure
9343 *
9344 * This routine is called by the Linux OS to reset the target.
9345 **/
qla4xxx_eh_target_reset(struct scsi_cmnd * cmd)9346 static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd)
9347 {
9348 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
9349 struct ddb_entry *ddb_entry = cmd->device->hostdata;
9350 int stat, ret;
9351 int rval;
9352
9353 if (!ddb_entry)
9354 return FAILED;
9355
9356 ret = iscsi_block_scsi_eh(cmd);
9357 if (ret)
9358 return ret;
9359
9360 starget_printk(KERN_INFO, scsi_target(cmd->device),
9361 "WARM TARGET RESET ISSUED.\n");
9362
9363 DEBUG2(printk(KERN_INFO
9364 "scsi%ld: TARGET_DEVICE_RESET cmd=%p jiffies = 0x%lx, "
9365 "to=%x,dpc_flags=%lx, status=%x allowed=%d\n",
9366 ha->host_no, cmd, jiffies, cmd->request->timeout / HZ,
9367 ha->dpc_flags, cmd->result, cmd->allowed));
9368
9369 rval = qla4xxx_isp_check_reg(ha);
9370 if (rval != QLA_SUCCESS) {
9371 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n");
9372 return FAILED;
9373 }
9374
9375 stat = qla4xxx_reset_target(ha, ddb_entry);
9376 if (stat != QLA_SUCCESS) {
9377 starget_printk(KERN_INFO, scsi_target(cmd->device),
9378 "WARM TARGET RESET FAILED.\n");
9379 return FAILED;
9380 }
9381
9382 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device),
9383 NULL)) {
9384 starget_printk(KERN_INFO, scsi_target(cmd->device),
9385 "WARM TARGET DEVICE RESET FAILED - "
9386 "waiting for commands.\n");
9387 return FAILED;
9388 }
9389
9390 /* Send marker. */
9391 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun,
9392 MM_TGT_WARM_RESET) != QLA_SUCCESS) {
9393 starget_printk(KERN_INFO, scsi_target(cmd->device),
9394 "WARM TARGET DEVICE RESET FAILED - "
9395 "marker iocb failed.\n");
9396 return FAILED;
9397 }
9398
9399 starget_printk(KERN_INFO, scsi_target(cmd->device),
9400 "WARM TARGET RESET SUCCEEDED.\n");
9401 return SUCCESS;
9402 }
9403
9404 /**
9405 * qla4xxx_is_eh_active - check if error handler is running
9406 * @shost: Pointer to SCSI Host struct
9407 *
9408 * This routine finds that if reset host is called in EH
9409 * scenario or from some application like sg_reset
9410 **/
qla4xxx_is_eh_active(struct Scsi_Host * shost)9411 static int qla4xxx_is_eh_active(struct Scsi_Host *shost)
9412 {
9413 if (shost->shost_state == SHOST_RECOVERY)
9414 return 1;
9415 return 0;
9416 }
9417
9418 /**
9419 * qla4xxx_eh_host_reset - kernel callback
9420 * @cmd: Pointer to Linux's SCSI command structure
9421 *
9422 * This routine is invoked by the Linux kernel to perform fatal error
9423 * recovery on the specified adapter.
9424 **/
qla4xxx_eh_host_reset(struct scsi_cmnd * cmd)9425 static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd)
9426 {
9427 int return_status = FAILED;
9428 struct scsi_qla_host *ha;
9429 int rval;
9430
9431 ha = to_qla_host(cmd->device->host);
9432
9433 rval = qla4xxx_isp_check_reg(ha);
9434 if (rval != QLA_SUCCESS) {
9435 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n");
9436 return FAILED;
9437 }
9438
9439 if ((is_qla8032(ha) || is_qla8042(ha)) && ql4xdontresethba)
9440 qla4_83xx_set_idc_dontreset(ha);
9441
9442 /*
9443 * For ISP8324 and ISP8042, if IDC_CTRL DONTRESET_BIT0 is set by other
9444 * protocol drivers, we should not set device_state to NEED_RESET
9445 */
9446 if (ql4xdontresethba ||
9447 ((is_qla8032(ha) || is_qla8042(ha)) &&
9448 qla4_83xx_idc_dontreset(ha))) {
9449 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n",
9450 ha->host_no, __func__));
9451
9452 /* Clear outstanding srb in queues */
9453 if (qla4xxx_is_eh_active(cmd->device->host))
9454 qla4xxx_abort_active_cmds(ha, DID_ABORT << 16);
9455
9456 return FAILED;
9457 }
9458
9459 ql4_printk(KERN_INFO, ha,
9460 "scsi(%ld:%d:%d:%llu): HOST RESET ISSUED.\n", ha->host_no,
9461 cmd->device->channel, cmd->device->id, cmd->device->lun);
9462
9463 if (qla4xxx_wait_for_hba_online(ha) != QLA_SUCCESS) {
9464 DEBUG2(printk("scsi%ld:%d: %s: Unable to reset host. Adapter "
9465 "DEAD.\n", ha->host_no, cmd->device->channel,
9466 __func__));
9467
9468 return FAILED;
9469 }
9470
9471 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
9472 if (is_qla80XX(ha))
9473 set_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
9474 else
9475 set_bit(DPC_RESET_HA, &ha->dpc_flags);
9476 }
9477
9478 if (qla4xxx_recover_adapter(ha) == QLA_SUCCESS)
9479 return_status = SUCCESS;
9480
9481 ql4_printk(KERN_INFO, ha, "HOST RESET %s.\n",
9482 return_status == FAILED ? "FAILED" : "SUCCEEDED");
9483
9484 return return_status;
9485 }
9486
qla4xxx_context_reset(struct scsi_qla_host * ha)9487 static int qla4xxx_context_reset(struct scsi_qla_host *ha)
9488 {
9489 uint32_t mbox_cmd[MBOX_REG_COUNT];
9490 uint32_t mbox_sts[MBOX_REG_COUNT];
9491 struct addr_ctrl_blk_def *acb = NULL;
9492 uint32_t acb_len = sizeof(struct addr_ctrl_blk_def);
9493 int rval = QLA_SUCCESS;
9494 dma_addr_t acb_dma;
9495
9496 acb = dma_alloc_coherent(&ha->pdev->dev,
9497 sizeof(struct addr_ctrl_blk_def),
9498 &acb_dma, GFP_KERNEL);
9499 if (!acb) {
9500 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc acb\n",
9501 __func__);
9502 rval = -ENOMEM;
9503 goto exit_port_reset;
9504 }
9505
9506 memset(acb, 0, acb_len);
9507
9508 rval = qla4xxx_get_acb(ha, acb_dma, PRIMARI_ACB, acb_len);
9509 if (rval != QLA_SUCCESS) {
9510 rval = -EIO;
9511 goto exit_free_acb;
9512 }
9513
9514 rval = qla4xxx_disable_acb(ha);
9515 if (rval != QLA_SUCCESS) {
9516 rval = -EIO;
9517 goto exit_free_acb;
9518 }
9519
9520 wait_for_completion_timeout(&ha->disable_acb_comp,
9521 DISABLE_ACB_TOV * HZ);
9522
9523 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], acb_dma);
9524 if (rval != QLA_SUCCESS) {
9525 rval = -EIO;
9526 goto exit_free_acb;
9527 }
9528
9529 exit_free_acb:
9530 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk_def),
9531 acb, acb_dma);
9532 exit_port_reset:
9533 DEBUG2(ql4_printk(KERN_INFO, ha, "%s %s\n", __func__,
9534 rval == QLA_SUCCESS ? "SUCCEEDED" : "FAILED"));
9535 return rval;
9536 }
9537
qla4xxx_host_reset(struct Scsi_Host * shost,int reset_type)9538 static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type)
9539 {
9540 struct scsi_qla_host *ha = to_qla_host(shost);
9541 int rval = QLA_SUCCESS;
9542 uint32_t idc_ctrl;
9543
9544 if (ql4xdontresethba) {
9545 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Don't Reset HBA\n",
9546 __func__));
9547 rval = -EPERM;
9548 goto exit_host_reset;
9549 }
9550
9551 if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
9552 goto recover_adapter;
9553
9554 switch (reset_type) {
9555 case SCSI_ADAPTER_RESET:
9556 set_bit(DPC_RESET_HA, &ha->dpc_flags);
9557 break;
9558 case SCSI_FIRMWARE_RESET:
9559 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
9560 if (is_qla80XX(ha))
9561 /* set firmware context reset */
9562 set_bit(DPC_RESET_HA_FW_CONTEXT,
9563 &ha->dpc_flags);
9564 else {
9565 rval = qla4xxx_context_reset(ha);
9566 goto exit_host_reset;
9567 }
9568 }
9569 break;
9570 }
9571
9572 recover_adapter:
9573 /* For ISP8324 and ISP8042 set graceful reset bit in IDC_DRV_CTRL if
9574 * reset is issued by application */
9575 if ((is_qla8032(ha) || is_qla8042(ha)) &&
9576 test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
9577 idc_ctrl = qla4_83xx_rd_reg(ha, QLA83XX_IDC_DRV_CTRL);
9578 qla4_83xx_wr_reg(ha, QLA83XX_IDC_DRV_CTRL,
9579 (idc_ctrl | GRACEFUL_RESET_BIT1));
9580 }
9581
9582 rval = qla4xxx_recover_adapter(ha);
9583 if (rval != QLA_SUCCESS) {
9584 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: recover adapter fail\n",
9585 __func__));
9586 rval = -EIO;
9587 }
9588
9589 exit_host_reset:
9590 return rval;
9591 }
9592
9593 /* PCI AER driver recovers from all correctable errors w/o
9594 * driver intervention. For uncorrectable errors PCI AER
9595 * driver calls the following device driver's callbacks
9596 *
9597 * - Fatal Errors - link_reset
9598 * - Non-Fatal Errors - driver's error_detected() which
9599 * returns CAN_RECOVER, NEED_RESET or DISCONNECT.
9600 *
9601 * PCI AER driver calls
9602 * CAN_RECOVER - driver's mmio_enabled(), mmio_enabled()
9603 * returns RECOVERED or NEED_RESET if fw_hung
9604 * NEED_RESET - driver's slot_reset()
9605 * DISCONNECT - device is dead & cannot recover
9606 * RECOVERED - driver's resume()
9607 */
9608 static pci_ers_result_t
qla4xxx_pci_error_detected(struct pci_dev * pdev,pci_channel_state_t state)9609 qla4xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
9610 {
9611 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9612
9613 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: error detected:state %x\n",
9614 ha->host_no, __func__, state);
9615
9616 if (!is_aer_supported(ha))
9617 return PCI_ERS_RESULT_NONE;
9618
9619 switch (state) {
9620 case pci_channel_io_normal:
9621 clear_bit(AF_EEH_BUSY, &ha->flags);
9622 return PCI_ERS_RESULT_CAN_RECOVER;
9623 case pci_channel_io_frozen:
9624 set_bit(AF_EEH_BUSY, &ha->flags);
9625 qla4xxx_mailbox_premature_completion(ha);
9626 qla4xxx_free_irqs(ha);
9627 pci_disable_device(pdev);
9628 /* Return back all IOs */
9629 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
9630 return PCI_ERS_RESULT_NEED_RESET;
9631 case pci_channel_io_perm_failure:
9632 set_bit(AF_EEH_BUSY, &ha->flags);
9633 set_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags);
9634 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
9635 return PCI_ERS_RESULT_DISCONNECT;
9636 }
9637 return PCI_ERS_RESULT_NEED_RESET;
9638 }
9639
9640 /**
9641 * qla4xxx_pci_mmio_enabled() gets called if
9642 * qla4xxx_pci_error_detected() returns PCI_ERS_RESULT_CAN_RECOVER
9643 * and read/write to the device still works.
9644 * @pdev: PCI device pointer
9645 **/
9646 static pci_ers_result_t
qla4xxx_pci_mmio_enabled(struct pci_dev * pdev)9647 qla4xxx_pci_mmio_enabled(struct pci_dev *pdev)
9648 {
9649 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9650
9651 if (!is_aer_supported(ha))
9652 return PCI_ERS_RESULT_NONE;
9653
9654 return PCI_ERS_RESULT_RECOVERED;
9655 }
9656
qla4_8xxx_error_recovery(struct scsi_qla_host * ha)9657 static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha)
9658 {
9659 uint32_t rval = QLA_ERROR;
9660 int fn;
9661 struct pci_dev *other_pdev = NULL;
9662
9663 ql4_printk(KERN_WARNING, ha, "scsi%ld: In %s\n", ha->host_no, __func__);
9664
9665 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
9666
9667 if (test_bit(AF_ONLINE, &ha->flags)) {
9668 clear_bit(AF_ONLINE, &ha->flags);
9669 clear_bit(AF_LINK_UP, &ha->flags);
9670 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session);
9671 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
9672 }
9673
9674 fn = PCI_FUNC(ha->pdev->devfn);
9675 if (is_qla8022(ha)) {
9676 while (fn > 0) {
9677 fn--;
9678 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Finding PCI device at func %x\n",
9679 ha->host_no, __func__, fn);
9680 /* Get the pci device given the domain, bus,
9681 * slot/function number */
9682 other_pdev = pci_get_domain_bus_and_slot(
9683 pci_domain_nr(ha->pdev->bus),
9684 ha->pdev->bus->number,
9685 PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
9686 fn));
9687
9688 if (!other_pdev)
9689 continue;
9690
9691 if (atomic_read(&other_pdev->enable_cnt)) {
9692 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Found PCI func in enabled state%x\n",
9693 ha->host_no, __func__, fn);
9694 pci_dev_put(other_pdev);
9695 break;
9696 }
9697 pci_dev_put(other_pdev);
9698 }
9699 } else {
9700 /* this case is meant for ISP83xx/ISP84xx only */
9701 if (qla4_83xx_can_perform_reset(ha)) {
9702 /* reset fn as iSCSI is going to perform the reset */
9703 fn = 0;
9704 }
9705 }
9706
9707 /* The first function on the card, the reset owner will
9708 * start & initialize the firmware. The other functions
9709 * on the card will reset the firmware context
9710 */
9711 if (!fn) {
9712 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn being reset "
9713 "0x%x is the owner\n", ha->host_no, __func__,
9714 ha->pdev->devfn);
9715
9716 ha->isp_ops->idc_lock(ha);
9717 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9718 QLA8XXX_DEV_COLD);
9719 ha->isp_ops->idc_unlock(ha);
9720
9721 rval = qla4_8xxx_update_idc_reg(ha);
9722 if (rval == QLA_ERROR) {
9723 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: FAILED\n",
9724 ha->host_no, __func__);
9725 ha->isp_ops->idc_lock(ha);
9726 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9727 QLA8XXX_DEV_FAILED);
9728 ha->isp_ops->idc_unlock(ha);
9729 goto exit_error_recovery;
9730 }
9731
9732 clear_bit(AF_FW_RECOVERY, &ha->flags);
9733 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
9734
9735 if (rval != QLA_SUCCESS) {
9736 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: "
9737 "FAILED\n", ha->host_no, __func__);
9738 qla4xxx_free_irqs(ha);
9739 ha->isp_ops->idc_lock(ha);
9740 qla4_8xxx_clear_drv_active(ha);
9741 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9742 QLA8XXX_DEV_FAILED);
9743 ha->isp_ops->idc_unlock(ha);
9744 } else {
9745 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: "
9746 "READY\n", ha->host_no, __func__);
9747 ha->isp_ops->idc_lock(ha);
9748 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9749 QLA8XXX_DEV_READY);
9750 /* Clear driver state register */
9751 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_STATE, 0);
9752 qla4_8xxx_set_drv_active(ha);
9753 ha->isp_ops->idc_unlock(ha);
9754 ha->isp_ops->enable_intrs(ha);
9755 }
9756 } else {
9757 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn 0x%x is not "
9758 "the reset owner\n", ha->host_no, __func__,
9759 ha->pdev->devfn);
9760 if ((qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE) ==
9761 QLA8XXX_DEV_READY)) {
9762 clear_bit(AF_FW_RECOVERY, &ha->flags);
9763 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
9764 if (rval == QLA_SUCCESS)
9765 ha->isp_ops->enable_intrs(ha);
9766 else
9767 qla4xxx_free_irqs(ha);
9768
9769 ha->isp_ops->idc_lock(ha);
9770 qla4_8xxx_set_drv_active(ha);
9771 ha->isp_ops->idc_unlock(ha);
9772 }
9773 }
9774 exit_error_recovery:
9775 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
9776 return rval;
9777 }
9778
9779 static pci_ers_result_t
qla4xxx_pci_slot_reset(struct pci_dev * pdev)9780 qla4xxx_pci_slot_reset(struct pci_dev *pdev)
9781 {
9782 pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
9783 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9784 int rc;
9785
9786 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: slot_reset\n",
9787 ha->host_no, __func__);
9788
9789 if (!is_aer_supported(ha))
9790 return PCI_ERS_RESULT_NONE;
9791
9792 /* Restore the saved state of PCIe device -
9793 * BAR registers, PCI Config space, PCIX, MSI,
9794 * IOV states
9795 */
9796 pci_restore_state(pdev);
9797
9798 /* pci_restore_state() clears the saved_state flag of the device
9799 * save restored state which resets saved_state flag
9800 */
9801 pci_save_state(pdev);
9802
9803 /* Initialize device or resume if in suspended state */
9804 rc = pci_enable_device(pdev);
9805 if (rc) {
9806 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Can't re-enable "
9807 "device after reset\n", ha->host_no, __func__);
9808 goto exit_slot_reset;
9809 }
9810
9811 ha->isp_ops->disable_intrs(ha);
9812
9813 if (is_qla80XX(ha)) {
9814 if (qla4_8xxx_error_recovery(ha) == QLA_SUCCESS) {
9815 ret = PCI_ERS_RESULT_RECOVERED;
9816 goto exit_slot_reset;
9817 } else
9818 goto exit_slot_reset;
9819 }
9820
9821 exit_slot_reset:
9822 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Return=%x\n"
9823 "device after reset\n", ha->host_no, __func__, ret);
9824 return ret;
9825 }
9826
9827 static void
qla4xxx_pci_resume(struct pci_dev * pdev)9828 qla4xxx_pci_resume(struct pci_dev *pdev)
9829 {
9830 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9831 int ret;
9832
9833 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: pci_resume\n",
9834 ha->host_no, __func__);
9835
9836 ret = qla4xxx_wait_for_hba_online(ha);
9837 if (ret != QLA_SUCCESS) {
9838 ql4_printk(KERN_ERR, ha, "scsi%ld: %s: the device failed to "
9839 "resume I/O from slot/link_reset\n", ha->host_no,
9840 __func__);
9841 }
9842
9843 clear_bit(AF_EEH_BUSY, &ha->flags);
9844 }
9845
9846 static const struct pci_error_handlers qla4xxx_err_handler = {
9847 .error_detected = qla4xxx_pci_error_detected,
9848 .mmio_enabled = qla4xxx_pci_mmio_enabled,
9849 .slot_reset = qla4xxx_pci_slot_reset,
9850 .resume = qla4xxx_pci_resume,
9851 };
9852
9853 static struct pci_device_id qla4xxx_pci_tbl[] = {
9854 {
9855 .vendor = PCI_VENDOR_ID_QLOGIC,
9856 .device = PCI_DEVICE_ID_QLOGIC_ISP4010,
9857 .subvendor = PCI_ANY_ID,
9858 .subdevice = PCI_ANY_ID,
9859 },
9860 {
9861 .vendor = PCI_VENDOR_ID_QLOGIC,
9862 .device = PCI_DEVICE_ID_QLOGIC_ISP4022,
9863 .subvendor = PCI_ANY_ID,
9864 .subdevice = PCI_ANY_ID,
9865 },
9866 {
9867 .vendor = PCI_VENDOR_ID_QLOGIC,
9868 .device = PCI_DEVICE_ID_QLOGIC_ISP4032,
9869 .subvendor = PCI_ANY_ID,
9870 .subdevice = PCI_ANY_ID,
9871 },
9872 {
9873 .vendor = PCI_VENDOR_ID_QLOGIC,
9874 .device = PCI_DEVICE_ID_QLOGIC_ISP8022,
9875 .subvendor = PCI_ANY_ID,
9876 .subdevice = PCI_ANY_ID,
9877 },
9878 {
9879 .vendor = PCI_VENDOR_ID_QLOGIC,
9880 .device = PCI_DEVICE_ID_QLOGIC_ISP8324,
9881 .subvendor = PCI_ANY_ID,
9882 .subdevice = PCI_ANY_ID,
9883 },
9884 {
9885 .vendor = PCI_VENDOR_ID_QLOGIC,
9886 .device = PCI_DEVICE_ID_QLOGIC_ISP8042,
9887 .subvendor = PCI_ANY_ID,
9888 .subdevice = PCI_ANY_ID,
9889 },
9890 {0, 0},
9891 };
9892 MODULE_DEVICE_TABLE(pci, qla4xxx_pci_tbl);
9893
9894 static struct pci_driver qla4xxx_pci_driver = {
9895 .name = DRIVER_NAME,
9896 .id_table = qla4xxx_pci_tbl,
9897 .probe = qla4xxx_probe_adapter,
9898 .remove = qla4xxx_remove_adapter,
9899 .err_handler = &qla4xxx_err_handler,
9900 };
9901
qla4xxx_module_init(void)9902 static int __init qla4xxx_module_init(void)
9903 {
9904 int ret;
9905
9906 if (ql4xqfulltracking)
9907 qla4xxx_driver_template.track_queue_depth = 1;
9908
9909 /* Allocate cache for SRBs. */
9910 srb_cachep = kmem_cache_create("qla4xxx_srbs", sizeof(struct srb), 0,
9911 SLAB_HWCACHE_ALIGN, NULL);
9912 if (srb_cachep == NULL) {
9913 printk(KERN_ERR
9914 "%s: Unable to allocate SRB cache..."
9915 "Failing load!\n", DRIVER_NAME);
9916 ret = -ENOMEM;
9917 goto no_srp_cache;
9918 }
9919
9920 /* Derive version string. */
9921 strcpy(qla4xxx_version_str, QLA4XXX_DRIVER_VERSION);
9922 if (ql4xextended_error_logging)
9923 strcat(qla4xxx_version_str, "-debug");
9924
9925 qla4xxx_scsi_transport =
9926 iscsi_register_transport(&qla4xxx_iscsi_transport);
9927 if (!qla4xxx_scsi_transport){
9928 ret = -ENODEV;
9929 goto release_srb_cache;
9930 }
9931
9932 ret = pci_register_driver(&qla4xxx_pci_driver);
9933 if (ret)
9934 goto unregister_transport;
9935
9936 printk(KERN_INFO "QLogic iSCSI HBA Driver\n");
9937 return 0;
9938
9939 unregister_transport:
9940 iscsi_unregister_transport(&qla4xxx_iscsi_transport);
9941 release_srb_cache:
9942 kmem_cache_destroy(srb_cachep);
9943 no_srp_cache:
9944 return ret;
9945 }
9946
qla4xxx_module_exit(void)9947 static void __exit qla4xxx_module_exit(void)
9948 {
9949 pci_unregister_driver(&qla4xxx_pci_driver);
9950 iscsi_unregister_transport(&qla4xxx_iscsi_transport);
9951 kmem_cache_destroy(srb_cachep);
9952 }
9953
9954 module_init(qla4xxx_module_init);
9955 module_exit(qla4xxx_module_exit);
9956
9957 MODULE_AUTHOR("QLogic Corporation");
9958 MODULE_DESCRIPTION("QLogic iSCSI HBA Driver");
9959 MODULE_LICENSE("GPL");
9960 MODULE_VERSION(QLA4XXX_DRIVER_VERSION);
9961