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Linux 4.18.10
[linux/fpc-iii.git] / drivers / scsi / qla4xxx / ql4_os.c
blob0e13349dce57094b3bc211093ec93a26f2797f11
1 /*
2 * QLogic iSCSI HBA Driver
3 * Copyright (c) 2003-2013 QLogic Corporation
4 *
5 * See LICENSE.qla4xxx for copyright and licensing details.
6 */
7 #include <linux/moduleparam.h>
8 #include <linux/slab.h>
9 #include <linux/blkdev.h>
10 #include <linux/iscsi_boot_sysfs.h>
11 #include <linux/inet.h>
12
13 #include <scsi/scsi_tcq.h>
14 #include <scsi/scsicam.h>
15
16 #include "ql4_def.h"
17 #include "ql4_version.h"
18 #include "ql4_glbl.h"
19 #include "ql4_dbg.h"
20 #include "ql4_inline.h"
21 #include "ql4_83xx.h"
22
23 /*
24 * Driver version
25 */
26 static char qla4xxx_version_str[40];
27
28 /*
29 * SRB allocation cache
30 */
31 static struct kmem_cache *srb_cachep;
32
33 /*
34 * Module parameter information and variables
35 */
36 static int ql4xdisablesysfsboot = 1;
37 module_param(ql4xdisablesysfsboot, int, S_IRUGO | S_IWUSR);
38 MODULE_PARM_DESC(ql4xdisablesysfsboot,
39 " Set to disable exporting boot targets to sysfs.\n"
40 "\t\t 0 - Export boot targets\n"
41 "\t\t 1 - Do not export boot targets (Default)");
42
43 int ql4xdontresethba;
44 module_param(ql4xdontresethba, int, S_IRUGO | S_IWUSR);
45 MODULE_PARM_DESC(ql4xdontresethba,
46 " Don't reset the HBA for driver recovery.\n"
47 "\t\t 0 - It will reset HBA (Default)\n"
48 "\t\t 1 - It will NOT reset HBA");
49
50 int ql4xextended_error_logging;
51 module_param(ql4xextended_error_logging, int, S_IRUGO | S_IWUSR);
52 MODULE_PARM_DESC(ql4xextended_error_logging,
53 " Option to enable extended error logging.\n"
54 "\t\t 0 - no logging (Default)\n"
55 "\t\t 2 - debug logging");
56
57 int ql4xenablemsix = 1;
58 module_param(ql4xenablemsix, int, S_IRUGO|S_IWUSR);
59 MODULE_PARM_DESC(ql4xenablemsix,
60 " Set to enable MSI or MSI-X interrupt mechanism.\n"
61 "\t\t 0 = enable INTx interrupt mechanism.\n"
62 "\t\t 1 = enable MSI-X interrupt mechanism (Default).\n"
63 "\t\t 2 = enable MSI interrupt mechanism.");
64
65 #define QL4_DEF_QDEPTH 32
66 static int ql4xmaxqdepth = QL4_DEF_QDEPTH;
67 module_param(ql4xmaxqdepth, int, S_IRUGO | S_IWUSR);
68 MODULE_PARM_DESC(ql4xmaxqdepth,
69 " Maximum queue depth to report for target devices.\n"
70 "\t\t Default: 32.");
71
72 static int ql4xqfulltracking = 1;
73 module_param(ql4xqfulltracking, int, S_IRUGO | S_IWUSR);
74 MODULE_PARM_DESC(ql4xqfulltracking,
75 " Enable or disable dynamic tracking and adjustment of\n"
76 "\t\t scsi device queue depth.\n"
77 "\t\t 0 - Disable.\n"
78 "\t\t 1 - Enable. (Default)");
79
80 static int ql4xsess_recovery_tmo = QL4_SESS_RECOVERY_TMO;
81 module_param(ql4xsess_recovery_tmo, int, S_IRUGO);
82 MODULE_PARM_DESC(ql4xsess_recovery_tmo,
83 " Target Session Recovery Timeout.\n"
84 "\t\t Default: 120 sec.");
85
86 int ql4xmdcapmask = 0;
87 module_param(ql4xmdcapmask, int, S_IRUGO);
88 MODULE_PARM_DESC(ql4xmdcapmask,
89 " Set the Minidump driver capture mask level.\n"
90 "\t\t Default is 0 (firmware default capture mask)\n"
91 "\t\t Can be set to 0x3, 0x7, 0xF, 0x1F, 0x3F, 0x7F, 0xFF");
92
93 int ql4xenablemd = 1;
94 module_param(ql4xenablemd, int, S_IRUGO | S_IWUSR);
95 MODULE_PARM_DESC(ql4xenablemd,
96 " Set to enable minidump.\n"
97 "\t\t 0 - disable minidump\n"
98 "\t\t 1 - enable minidump (Default)");
99
100 static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha);
101 /*
102 * SCSI host template entry points
103 */
104 static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha);
105
106 /*
107 * iSCSI template entry points
108 */
109 static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess,
110 enum iscsi_param param, char *buf);
111 static int qla4xxx_conn_get_param(struct iscsi_cls_conn *conn,
112 enum iscsi_param param, char *buf);
113 static int qla4xxx_host_get_param(struct Scsi_Host *shost,
114 enum iscsi_host_param param, char *buf);
115 static int qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data,
116 uint32_t len);
117 static int qla4xxx_get_iface_param(struct iscsi_iface *iface,
118 enum iscsi_param_type param_type,
119 int param, char *buf);
120 static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc);
121 static struct iscsi_endpoint *qla4xxx_ep_connect(struct Scsi_Host *shost,
122 struct sockaddr *dst_addr,
123 int non_blocking);
124 static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms);
125 static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep);
126 static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep,
127 enum iscsi_param param, char *buf);
128 static int qla4xxx_conn_start(struct iscsi_cls_conn *conn);
129 static struct iscsi_cls_conn *
130 qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx);
131 static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session,
132 struct iscsi_cls_conn *cls_conn,
133 uint64_t transport_fd, int is_leading);
134 static void qla4xxx_conn_destroy(struct iscsi_cls_conn *conn);
135 static struct iscsi_cls_session *
136 qla4xxx_session_create(struct iscsi_endpoint *ep, uint16_t cmds_max,
137 uint16_t qdepth, uint32_t initial_cmdsn);
138 static void qla4xxx_session_destroy(struct iscsi_cls_session *sess);
139 static void qla4xxx_task_work(struct work_struct *wdata);
140 static int qla4xxx_alloc_pdu(struct iscsi_task *, uint8_t);
141 static int qla4xxx_task_xmit(struct iscsi_task *);
142 static void qla4xxx_task_cleanup(struct iscsi_task *);
143 static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session);
144 static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn,
145 struct iscsi_stats *stats);
146 static int qla4xxx_send_ping(struct Scsi_Host *shost, uint32_t iface_num,
147 uint32_t iface_type, uint32_t payload_size,
148 uint32_t pid, struct sockaddr *dst_addr);
149 static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx,
150 uint32_t *num_entries, char *buf);
151 static int qla4xxx_delete_chap(struct Scsi_Host *shost, uint16_t chap_tbl_idx);
152 static int qla4xxx_set_chap_entry(struct Scsi_Host *shost, void *data,
153 int len);
154 static int qla4xxx_get_host_stats(struct Scsi_Host *shost, char *buf, int len);
155
156 /*
157 * SCSI host template entry points
158 */
159 static int qla4xxx_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *cmd);
160 static int qla4xxx_eh_abort(struct scsi_cmnd *cmd);
161 static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd);
162 static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd);
163 static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd);
164 static int qla4xxx_slave_alloc(struct scsi_device *device);
165 static umode_t qla4_attr_is_visible(int param_type, int param);
166 static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type);
167
168 /*
169 * iSCSI Flash DDB sysfs entry points
170 */
171 static int
172 qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess,
173 struct iscsi_bus_flash_conn *fnode_conn,
174 void *data, int len);
175 static int
176 qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session *fnode_sess,
177 int param, char *buf);
178 static int qla4xxx_sysfs_ddb_add(struct Scsi_Host *shost, const char *buf,
179 int len);
180 static int
181 qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess);
182 static int qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess,
183 struct iscsi_bus_flash_conn *fnode_conn);
184 static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess,
185 struct iscsi_bus_flash_conn *fnode_conn);
186 static int qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess);
187
188 static struct qla4_8xxx_legacy_intr_set legacy_intr[] =
189 QLA82XX_LEGACY_INTR_CONFIG;
190
191 static struct scsi_host_template qla4xxx_driver_template = {
192 .module = THIS_MODULE,
193 .name = DRIVER_NAME,
194 .proc_name = DRIVER_NAME,
195 .queuecommand = qla4xxx_queuecommand,
196
197 .eh_abort_handler = qla4xxx_eh_abort,
198 .eh_device_reset_handler = qla4xxx_eh_device_reset,
199 .eh_target_reset_handler = qla4xxx_eh_target_reset,
200 .eh_host_reset_handler = qla4xxx_eh_host_reset,
201 .eh_timed_out = qla4xxx_eh_cmd_timed_out,
202
203 .slave_alloc = qla4xxx_slave_alloc,
204 .change_queue_depth = scsi_change_queue_depth,
205
206 .this_id = -1,
207 .cmd_per_lun = 3,
208 .use_clustering = ENABLE_CLUSTERING,
209 .sg_tablesize = SG_ALL,
210
211 .max_sectors = 0xFFFF,
212 .shost_attrs = qla4xxx_host_attrs,
213 .host_reset = qla4xxx_host_reset,
214 .vendor_id = SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC,
215 };
216
217 static struct iscsi_transport qla4xxx_iscsi_transport = {
218 .owner = THIS_MODULE,
219 .name = DRIVER_NAME,
220 .caps = CAP_TEXT_NEGO |
221 CAP_DATA_PATH_OFFLOAD | CAP_HDRDGST |
222 CAP_DATADGST | CAP_LOGIN_OFFLOAD |
223 CAP_MULTI_R2T,
224 .attr_is_visible = qla4_attr_is_visible,
225 .create_session = qla4xxx_session_create,
226 .destroy_session = qla4xxx_session_destroy,
227 .start_conn = qla4xxx_conn_start,
228 .create_conn = qla4xxx_conn_create,
229 .bind_conn = qla4xxx_conn_bind,
230 .stop_conn = iscsi_conn_stop,
231 .destroy_conn = qla4xxx_conn_destroy,
232 .set_param = iscsi_set_param,
233 .get_conn_param = qla4xxx_conn_get_param,
234 .get_session_param = qla4xxx_session_get_param,
235 .get_ep_param = qla4xxx_get_ep_param,
236 .ep_connect = qla4xxx_ep_connect,
237 .ep_poll = qla4xxx_ep_poll,
238 .ep_disconnect = qla4xxx_ep_disconnect,
239 .get_stats = qla4xxx_conn_get_stats,
240 .send_pdu = iscsi_conn_send_pdu,
241 .xmit_task = qla4xxx_task_xmit,
242 .cleanup_task = qla4xxx_task_cleanup,
243 .alloc_pdu = qla4xxx_alloc_pdu,
244
245 .get_host_param = qla4xxx_host_get_param,
246 .set_iface_param = qla4xxx_iface_set_param,
247 .get_iface_param = qla4xxx_get_iface_param,
248 .bsg_request = qla4xxx_bsg_request,
249 .send_ping = qla4xxx_send_ping,
250 .get_chap = qla4xxx_get_chap_list,
251 .delete_chap = qla4xxx_delete_chap,
252 .set_chap = qla4xxx_set_chap_entry,
253 .get_flashnode_param = qla4xxx_sysfs_ddb_get_param,
254 .set_flashnode_param = qla4xxx_sysfs_ddb_set_param,
255 .new_flashnode = qla4xxx_sysfs_ddb_add,
256 .del_flashnode = qla4xxx_sysfs_ddb_delete,
257 .login_flashnode = qla4xxx_sysfs_ddb_login,
258 .logout_flashnode = qla4xxx_sysfs_ddb_logout,
259 .logout_flashnode_sid = qla4xxx_sysfs_ddb_logout_sid,
260 .get_host_stats = qla4xxx_get_host_stats,
261 };
262
263 static struct scsi_transport_template *qla4xxx_scsi_transport;
264
265 static int qla4xxx_isp_check_reg(struct scsi_qla_host *ha)
266 {
267 u32 reg_val = 0;
268 int rval = QLA_SUCCESS;
269
270 if (is_qla8022(ha))
271 reg_val = readl(&ha->qla4_82xx_reg->host_status);
272 else if (is_qla8032(ha) || is_qla8042(ha))
273 reg_val = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_ALIVE_COUNTER);
274 else
275 reg_val = readw(&ha->reg->ctrl_status);
276
277 if (reg_val == QL4_ISP_REG_DISCONNECT)
278 rval = QLA_ERROR;
279
280 return rval;
281 }
282
283 static int qla4xxx_send_ping(struct Scsi_Host *shost, uint32_t iface_num,
284 uint32_t iface_type, uint32_t payload_size,
285 uint32_t pid, struct sockaddr *dst_addr)
286 {
287 struct scsi_qla_host *ha = to_qla_host(shost);
288 struct sockaddr_in *addr;
289 struct sockaddr_in6 *addr6;
290 uint32_t options = 0;
291 uint8_t ipaddr[IPv6_ADDR_LEN];
292 int rval;
293
294 memset(ipaddr, 0, IPv6_ADDR_LEN);
295 /* IPv4 to IPv4 */
296 if ((iface_type == ISCSI_IFACE_TYPE_IPV4) &&
297 (dst_addr->sa_family == AF_INET)) {
298 addr = (struct sockaddr_in *)dst_addr;
299 memcpy(ipaddr, &addr->sin_addr.s_addr, IP_ADDR_LEN);
300 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv4 Ping src: %pI4 "
301 "dest: %pI4\n", __func__,
302 &ha->ip_config.ip_address, ipaddr));
303 rval = qla4xxx_ping_iocb(ha, options, payload_size, pid,
304 ipaddr);
305 if (rval)
306 rval = -EINVAL;
307 } else if ((iface_type == ISCSI_IFACE_TYPE_IPV6) &&
308 (dst_addr->sa_family == AF_INET6)) {
309 /* IPv6 to IPv6 */
310 addr6 = (struct sockaddr_in6 *)dst_addr;
311 memcpy(ipaddr, &addr6->sin6_addr.in6_u.u6_addr8, IPv6_ADDR_LEN);
312
313 options |= PING_IPV6_PROTOCOL_ENABLE;
314
315 /* Ping using LinkLocal address */
316 if ((iface_num == 0) || (iface_num == 1)) {
317 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: LinkLocal Ping "
318 "src: %pI6 dest: %pI6\n", __func__,
319 &ha->ip_config.ipv6_link_local_addr,
320 ipaddr));
321 options |= PING_IPV6_LINKLOCAL_ADDR;
322 rval = qla4xxx_ping_iocb(ha, options, payload_size,
323 pid, ipaddr);
324 } else {
325 ql4_printk(KERN_WARNING, ha, "%s: iface num = %d "
326 "not supported\n", __func__, iface_num);
327 rval = -ENOSYS;
328 goto exit_send_ping;
329 }
330
331 /*
332 * If ping using LinkLocal address fails, try ping using
333 * IPv6 address
334 */
335 if (rval != QLA_SUCCESS) {
336 options &= ~PING_IPV6_LINKLOCAL_ADDR;
337 if (iface_num == 0) {
338 options |= PING_IPV6_ADDR0;
339 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv6 "
340 "Ping src: %pI6 "
341 "dest: %pI6\n", __func__,
342 &ha->ip_config.ipv6_addr0,
343 ipaddr));
344 } else if (iface_num == 1) {
345 options |= PING_IPV6_ADDR1;
346 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv6 "
347 "Ping src: %pI6 "
348 "dest: %pI6\n", __func__,
349 &ha->ip_config.ipv6_addr1,
350 ipaddr));
351 }
352 rval = qla4xxx_ping_iocb(ha, options, payload_size,
353 pid, ipaddr);
354 if (rval)
355 rval = -EINVAL;
356 }
357 } else
358 rval = -ENOSYS;
359 exit_send_ping:
360 return rval;
361 }
362
363 static umode_t qla4_attr_is_visible(int param_type, int param)
364 {
365 switch (param_type) {
366 case ISCSI_HOST_PARAM:
367 switch (param) {
368 case ISCSI_HOST_PARAM_HWADDRESS:
369 case ISCSI_HOST_PARAM_IPADDRESS:
370 case ISCSI_HOST_PARAM_INITIATOR_NAME:
371 case ISCSI_HOST_PARAM_PORT_STATE:
372 case ISCSI_HOST_PARAM_PORT_SPEED:
373 return S_IRUGO;
374 default:
375 return 0;
376 }
377 case ISCSI_PARAM:
378 switch (param) {
379 case ISCSI_PARAM_PERSISTENT_ADDRESS:
380 case ISCSI_PARAM_PERSISTENT_PORT:
381 case ISCSI_PARAM_CONN_ADDRESS:
382 case ISCSI_PARAM_CONN_PORT:
383 case ISCSI_PARAM_TARGET_NAME:
384 case ISCSI_PARAM_TPGT:
385 case ISCSI_PARAM_TARGET_ALIAS:
386 case ISCSI_PARAM_MAX_BURST:
387 case ISCSI_PARAM_MAX_R2T:
388 case ISCSI_PARAM_FIRST_BURST:
389 case ISCSI_PARAM_MAX_RECV_DLENGTH:
390 case ISCSI_PARAM_MAX_XMIT_DLENGTH:
391 case ISCSI_PARAM_IFACE_NAME:
392 case ISCSI_PARAM_CHAP_OUT_IDX:
393 case ISCSI_PARAM_CHAP_IN_IDX:
394 case ISCSI_PARAM_USERNAME:
395 case ISCSI_PARAM_PASSWORD:
396 case ISCSI_PARAM_USERNAME_IN:
397 case ISCSI_PARAM_PASSWORD_IN:
398 case ISCSI_PARAM_AUTO_SND_TGT_DISABLE:
399 case ISCSI_PARAM_DISCOVERY_SESS:
400 case ISCSI_PARAM_PORTAL_TYPE:
401 case ISCSI_PARAM_CHAP_AUTH_EN:
402 case ISCSI_PARAM_DISCOVERY_LOGOUT_EN:
403 case ISCSI_PARAM_BIDI_CHAP_EN:
404 case ISCSI_PARAM_DISCOVERY_AUTH_OPTIONAL:
405 case ISCSI_PARAM_DEF_TIME2WAIT:
406 case ISCSI_PARAM_DEF_TIME2RETAIN:
407 case ISCSI_PARAM_HDRDGST_EN:
408 case ISCSI_PARAM_DATADGST_EN:
409 case ISCSI_PARAM_INITIAL_R2T_EN:
410 case ISCSI_PARAM_IMM_DATA_EN:
411 case ISCSI_PARAM_PDU_INORDER_EN:
412 case ISCSI_PARAM_DATASEQ_INORDER_EN:
413 case ISCSI_PARAM_MAX_SEGMENT_SIZE:
414 case ISCSI_PARAM_TCP_TIMESTAMP_STAT:
415 case ISCSI_PARAM_TCP_WSF_DISABLE:
416 case ISCSI_PARAM_TCP_NAGLE_DISABLE:
417 case ISCSI_PARAM_TCP_TIMER_SCALE:
418 case ISCSI_PARAM_TCP_TIMESTAMP_EN:
419 case ISCSI_PARAM_TCP_XMIT_WSF:
420 case ISCSI_PARAM_TCP_RECV_WSF:
421 case ISCSI_PARAM_IP_FRAGMENT_DISABLE:
422 case ISCSI_PARAM_IPV4_TOS:
423 case ISCSI_PARAM_IPV6_TC:
424 case ISCSI_PARAM_IPV6_FLOW_LABEL:
425 case ISCSI_PARAM_IS_FW_ASSIGNED_IPV6:
426 case ISCSI_PARAM_KEEPALIVE_TMO:
427 case ISCSI_PARAM_LOCAL_PORT:
428 case ISCSI_PARAM_ISID:
429 case ISCSI_PARAM_TSID:
430 case ISCSI_PARAM_DEF_TASKMGMT_TMO:
431 case ISCSI_PARAM_ERL:
432 case ISCSI_PARAM_STATSN:
433 case ISCSI_PARAM_EXP_STATSN:
434 case ISCSI_PARAM_DISCOVERY_PARENT_IDX:
435 case ISCSI_PARAM_DISCOVERY_PARENT_TYPE:
436 case ISCSI_PARAM_LOCAL_IPADDR:
437 return S_IRUGO;
438 default:
439 return 0;
440 }
441 case ISCSI_NET_PARAM:
442 switch (param) {
443 case ISCSI_NET_PARAM_IPV4_ADDR:
444 case ISCSI_NET_PARAM_IPV4_SUBNET:
445 case ISCSI_NET_PARAM_IPV4_GW:
446 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
447 case ISCSI_NET_PARAM_IFACE_ENABLE:
448 case ISCSI_NET_PARAM_IPV6_LINKLOCAL:
449 case ISCSI_NET_PARAM_IPV6_ADDR:
450 case ISCSI_NET_PARAM_IPV6_ROUTER:
451 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG:
452 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG:
453 case ISCSI_NET_PARAM_VLAN_ID:
454 case ISCSI_NET_PARAM_VLAN_PRIORITY:
455 case ISCSI_NET_PARAM_VLAN_ENABLED:
456 case ISCSI_NET_PARAM_MTU:
457 case ISCSI_NET_PARAM_PORT:
458 case ISCSI_NET_PARAM_IPADDR_STATE:
459 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_STATE:
460 case ISCSI_NET_PARAM_IPV6_ROUTER_STATE:
461 case ISCSI_NET_PARAM_DELAYED_ACK_EN:
462 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE:
463 case ISCSI_NET_PARAM_TCP_WSF_DISABLE:
464 case ISCSI_NET_PARAM_TCP_WSF:
465 case ISCSI_NET_PARAM_TCP_TIMER_SCALE:
466 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN:
467 case ISCSI_NET_PARAM_CACHE_ID:
468 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN:
469 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN:
470 case ISCSI_NET_PARAM_IPV4_TOS_EN:
471 case ISCSI_NET_PARAM_IPV4_TOS:
472 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN:
473 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN:
474 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID:
475 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN:
476 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN:
477 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID:
478 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN:
479 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE:
480 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN:
481 case ISCSI_NET_PARAM_REDIRECT_EN:
482 case ISCSI_NET_PARAM_IPV4_TTL:
483 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN:
484 case ISCSI_NET_PARAM_IPV6_MLD_EN:
485 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL:
486 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS:
487 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT:
488 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO:
489 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME:
490 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO:
491 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT:
492 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU:
493 return S_IRUGO;
494 default:
495 return 0;
496 }
497 case ISCSI_IFACE_PARAM:
498 switch (param) {
499 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO:
500 case ISCSI_IFACE_PARAM_HDRDGST_EN:
501 case ISCSI_IFACE_PARAM_DATADGST_EN:
502 case ISCSI_IFACE_PARAM_IMM_DATA_EN:
503 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN:
504 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN:
505 case ISCSI_IFACE_PARAM_PDU_INORDER_EN:
506 case ISCSI_IFACE_PARAM_ERL:
507 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH:
508 case ISCSI_IFACE_PARAM_FIRST_BURST:
509 case ISCSI_IFACE_PARAM_MAX_R2T:
510 case ISCSI_IFACE_PARAM_MAX_BURST:
511 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN:
512 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN:
513 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL:
514 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN:
515 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN:
516 case ISCSI_IFACE_PARAM_INITIATOR_NAME:
517 return S_IRUGO;
518 default:
519 return 0;
520 }
521 case ISCSI_FLASHNODE_PARAM:
522 switch (param) {
523 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6:
524 case ISCSI_FLASHNODE_PORTAL_TYPE:
525 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE:
526 case ISCSI_FLASHNODE_DISCOVERY_SESS:
527 case ISCSI_FLASHNODE_ENTRY_EN:
528 case ISCSI_FLASHNODE_HDR_DGST_EN:
529 case ISCSI_FLASHNODE_DATA_DGST_EN:
530 case ISCSI_FLASHNODE_IMM_DATA_EN:
531 case ISCSI_FLASHNODE_INITIAL_R2T_EN:
532 case ISCSI_FLASHNODE_DATASEQ_INORDER:
533 case ISCSI_FLASHNODE_PDU_INORDER:
534 case ISCSI_FLASHNODE_CHAP_AUTH_EN:
535 case ISCSI_FLASHNODE_SNACK_REQ_EN:
536 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN:
537 case ISCSI_FLASHNODE_BIDI_CHAP_EN:
538 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL:
539 case ISCSI_FLASHNODE_ERL:
540 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT:
541 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE:
542 case ISCSI_FLASHNODE_TCP_WSF_DISABLE:
543 case ISCSI_FLASHNODE_TCP_TIMER_SCALE:
544 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN:
545 case ISCSI_FLASHNODE_IP_FRAG_DISABLE:
546 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH:
547 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH:
548 case ISCSI_FLASHNODE_FIRST_BURST:
549 case ISCSI_FLASHNODE_DEF_TIME2WAIT:
550 case ISCSI_FLASHNODE_DEF_TIME2RETAIN:
551 case ISCSI_FLASHNODE_MAX_R2T:
552 case ISCSI_FLASHNODE_KEEPALIVE_TMO:
553 case ISCSI_FLASHNODE_ISID:
554 case ISCSI_FLASHNODE_TSID:
555 case ISCSI_FLASHNODE_PORT:
556 case ISCSI_FLASHNODE_MAX_BURST:
557 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO:
558 case ISCSI_FLASHNODE_IPADDR:
559 case ISCSI_FLASHNODE_ALIAS:
560 case ISCSI_FLASHNODE_REDIRECT_IPADDR:
561 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE:
562 case ISCSI_FLASHNODE_LOCAL_PORT:
563 case ISCSI_FLASHNODE_IPV4_TOS:
564 case ISCSI_FLASHNODE_IPV6_TC:
565 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL:
566 case ISCSI_FLASHNODE_NAME:
567 case ISCSI_FLASHNODE_TPGT:
568 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6:
569 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX:
570 case ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE:
571 case ISCSI_FLASHNODE_TCP_XMIT_WSF:
572 case ISCSI_FLASHNODE_TCP_RECV_WSF:
573 case ISCSI_FLASHNODE_CHAP_OUT_IDX:
574 case ISCSI_FLASHNODE_USERNAME:
575 case ISCSI_FLASHNODE_PASSWORD:
576 case ISCSI_FLASHNODE_STATSN:
577 case ISCSI_FLASHNODE_EXP_STATSN:
578 case ISCSI_FLASHNODE_IS_BOOT_TGT:
579 return S_IRUGO;
580 default:
581 return 0;
582 }
583 }
584
585 return 0;
586 }
587
588 /**
589 * qla4xxx_create chap_list - Create CHAP list from FLASH
590 * @ha: pointer to adapter structure
591 *
592 * Read flash and make a list of CHAP entries, during login when a CHAP entry
593 * is received, it will be checked in this list. If entry exist then the CHAP
594 * entry index is set in the DDB. If CHAP entry does not exist in this list
595 * then a new entry is added in FLASH in CHAP table and the index obtained is
596 * used in the DDB.
597 **/
598 static void qla4xxx_create_chap_list(struct scsi_qla_host *ha)
599 {
600 int rval = 0;
601 uint8_t *chap_flash_data = NULL;
602 uint32_t offset;
603 dma_addr_t chap_dma;
604 uint32_t chap_size = 0;
605
606 if (is_qla40XX(ha))
607 chap_size = MAX_CHAP_ENTRIES_40XX *
608 sizeof(struct ql4_chap_table);
609 else /* Single region contains CHAP info for both
610 * ports which is divided into half for each port.
611 */
612 chap_size = ha->hw.flt_chap_size / 2;
613
614 chap_flash_data = dma_alloc_coherent(&ha->pdev->dev, chap_size,
615 &chap_dma, GFP_KERNEL);
616 if (!chap_flash_data) {
617 ql4_printk(KERN_ERR, ha, "No memory for chap_flash_data\n");
618 return;
619 }
620
621 if (is_qla40XX(ha)) {
622 offset = FLASH_CHAP_OFFSET;
623 } else {
624 offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2);
625 if (ha->port_num == 1)
626 offset += chap_size;
627 }
628
629 rval = qla4xxx_get_flash(ha, chap_dma, offset, chap_size);
630 if (rval != QLA_SUCCESS)
631 goto exit_chap_list;
632
633 if (ha->chap_list == NULL)
634 ha->chap_list = vmalloc(chap_size);
635 if (ha->chap_list == NULL) {
636 ql4_printk(KERN_ERR, ha, "No memory for ha->chap_list\n");
637 goto exit_chap_list;
638 }
639
640 memset(ha->chap_list, 0, chap_size);
641 memcpy(ha->chap_list, chap_flash_data, chap_size);
642
643 exit_chap_list:
644 dma_free_coherent(&ha->pdev->dev, chap_size, chap_flash_data, chap_dma);
645 }
646
647 static int qla4xxx_get_chap_by_index(struct scsi_qla_host *ha,
648 int16_t chap_index,
649 struct ql4_chap_table **chap_entry)
650 {
651 int rval = QLA_ERROR;
652 int max_chap_entries;
653
654 if (!ha->chap_list) {
655 ql4_printk(KERN_ERR, ha, "CHAP table cache is empty!\n");
656 rval = QLA_ERROR;
657 goto exit_get_chap;
658 }
659
660 if (is_qla80XX(ha))
661 max_chap_entries = (ha->hw.flt_chap_size / 2) /
662 sizeof(struct ql4_chap_table);
663 else
664 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
665
666 if (chap_index > max_chap_entries) {
667 ql4_printk(KERN_ERR, ha, "Invalid Chap index\n");
668 rval = QLA_ERROR;
669 goto exit_get_chap;
670 }
671
672 *chap_entry = (struct ql4_chap_table *)ha->chap_list + chap_index;
673 if ((*chap_entry)->cookie !=
674 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) {
675 rval = QLA_ERROR;
676 *chap_entry = NULL;
677 } else {
678 rval = QLA_SUCCESS;
679 }
680
681 exit_get_chap:
682 return rval;
683 }
684
685 /**
686 * qla4xxx_find_free_chap_index - Find the first free chap index
687 * @ha: pointer to adapter structure
688 * @chap_index: CHAP index to be returned
689 *
690 * Find the first free chap index available in the chap table
691 *
692 * Note: Caller should acquire the chap lock before getting here.
693 **/
694 static int qla4xxx_find_free_chap_index(struct scsi_qla_host *ha,
695 uint16_t *chap_index)
696 {
697 int i, rval;
698 int free_index = -1;
699 int max_chap_entries = 0;
700 struct ql4_chap_table *chap_table;
701
702 if (is_qla80XX(ha))
703 max_chap_entries = (ha->hw.flt_chap_size / 2) /
704 sizeof(struct ql4_chap_table);
705 else
706 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
707
708 if (!ha->chap_list) {
709 ql4_printk(KERN_ERR, ha, "CHAP table cache is empty!\n");
710 rval = QLA_ERROR;
711 goto exit_find_chap;
712 }
713
714 for (i = 0; i < max_chap_entries; i++) {
715 chap_table = (struct ql4_chap_table *)ha->chap_list + i;
716
717 if ((chap_table->cookie !=
718 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) &&
719 (i > MAX_RESRV_CHAP_IDX)) {
720 free_index = i;
721 break;
722 }
723 }
724
725 if (free_index != -1) {
726 *chap_index = free_index;
727 rval = QLA_SUCCESS;
728 } else {
729 rval = QLA_ERROR;
730 }
731
732 exit_find_chap:
733 return rval;
734 }
735
736 static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx,
737 uint32_t *num_entries, char *buf)
738 {
739 struct scsi_qla_host *ha = to_qla_host(shost);
740 struct ql4_chap_table *chap_table;
741 struct iscsi_chap_rec *chap_rec;
742 int max_chap_entries = 0;
743 int valid_chap_entries = 0;
744 int ret = 0, i;
745
746 if (is_qla80XX(ha))
747 max_chap_entries = (ha->hw.flt_chap_size / 2) /
748 sizeof(struct ql4_chap_table);
749 else
750 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
751
752 ql4_printk(KERN_INFO, ha, "%s: num_entries = %d, CHAP idx = %d\n",
753 __func__, *num_entries, chap_tbl_idx);
754
755 if (!buf) {
756 ret = -ENOMEM;
757 goto exit_get_chap_list;
758 }
759
760 qla4xxx_create_chap_list(ha);
761
762 chap_rec = (struct iscsi_chap_rec *) buf;
763 mutex_lock(&ha->chap_sem);
764 for (i = chap_tbl_idx; i < max_chap_entries; i++) {
765 chap_table = (struct ql4_chap_table *)ha->chap_list + i;
766 if (chap_table->cookie !=
767 __constant_cpu_to_le16(CHAP_VALID_COOKIE))
768 continue;
769
770 chap_rec->chap_tbl_idx = i;
771 strlcpy(chap_rec->username, chap_table->name,
772 ISCSI_CHAP_AUTH_NAME_MAX_LEN);
773 strlcpy(chap_rec->password, chap_table->secret,
774 QL4_CHAP_MAX_SECRET_LEN);
775 chap_rec->password_length = chap_table->secret_len;
776
777 if (chap_table->flags & BIT_7) /* local */
778 chap_rec->chap_type = CHAP_TYPE_OUT;
779
780 if (chap_table->flags & BIT_6) /* peer */
781 chap_rec->chap_type = CHAP_TYPE_IN;
782
783 chap_rec++;
784
785 valid_chap_entries++;
786 if (valid_chap_entries == *num_entries)
787 break;
788 else
789 continue;
790 }
791 mutex_unlock(&ha->chap_sem);
792
793 exit_get_chap_list:
794 ql4_printk(KERN_INFO, ha, "%s: Valid CHAP Entries = %d\n",
795 __func__, valid_chap_entries);
796 *num_entries = valid_chap_entries;
797 return ret;
798 }
799
800 static int __qla4xxx_is_chap_active(struct device *dev, void *data)
801 {
802 int ret = 0;
803 uint16_t *chap_tbl_idx = (uint16_t *) data;
804 struct iscsi_cls_session *cls_session;
805 struct iscsi_session *sess;
806 struct ddb_entry *ddb_entry;
807
808 if (!iscsi_is_session_dev(dev))
809 goto exit_is_chap_active;
810
811 cls_session = iscsi_dev_to_session(dev);
812 sess = cls_session->dd_data;
813 ddb_entry = sess->dd_data;
814
815 if (iscsi_session_chkready(cls_session))
816 goto exit_is_chap_active;
817
818 if (ddb_entry->chap_tbl_idx == *chap_tbl_idx)
819 ret = 1;
820
821 exit_is_chap_active:
822 return ret;
823 }
824
825 static int qla4xxx_is_chap_active(struct Scsi_Host *shost,
826 uint16_t chap_tbl_idx)
827 {
828 int ret = 0;
829
830 ret = device_for_each_child(&shost->shost_gendev, &chap_tbl_idx,
831 __qla4xxx_is_chap_active);
832
833 return ret;
834 }
835
836 static int qla4xxx_delete_chap(struct Scsi_Host *shost, uint16_t chap_tbl_idx)
837 {
838 struct scsi_qla_host *ha = to_qla_host(shost);
839 struct ql4_chap_table *chap_table;
840 dma_addr_t chap_dma;
841 int max_chap_entries = 0;
842 uint32_t offset = 0;
843 uint32_t chap_size;
844 int ret = 0;
845
846 chap_table = dma_pool_zalloc(ha->chap_dma_pool, GFP_KERNEL, &chap_dma);
847 if (chap_table == NULL)
848 return -ENOMEM;
849
850 if (is_qla80XX(ha))
851 max_chap_entries = (ha->hw.flt_chap_size / 2) /
852 sizeof(struct ql4_chap_table);
853 else
854 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
855
856 if (chap_tbl_idx > max_chap_entries) {
857 ret = -EINVAL;
858 goto exit_delete_chap;
859 }
860
861 /* Check if chap index is in use.
862 * If chap is in use don't delet chap entry */
863 ret = qla4xxx_is_chap_active(shost, chap_tbl_idx);
864 if (ret) {
865 ql4_printk(KERN_INFO, ha, "CHAP entry %d is in use, cannot "
866 "delete from flash\n", chap_tbl_idx);
867 ret = -EBUSY;
868 goto exit_delete_chap;
869 }
870
871 chap_size = sizeof(struct ql4_chap_table);
872 if (is_qla40XX(ha))
873 offset = FLASH_CHAP_OFFSET | (chap_tbl_idx * chap_size);
874 else {
875 offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2);
876 /* flt_chap_size is CHAP table size for both ports
877 * so divide it by 2 to calculate the offset for second port
878 */
879 if (ha->port_num == 1)
880 offset += (ha->hw.flt_chap_size / 2);
881 offset += (chap_tbl_idx * chap_size);
882 }
883
884 ret = qla4xxx_get_flash(ha, chap_dma, offset, chap_size);
885 if (ret != QLA_SUCCESS) {
886 ret = -EINVAL;
887 goto exit_delete_chap;
888 }
889
890 DEBUG2(ql4_printk(KERN_INFO, ha, "Chap Cookie: x%x\n",
891 __le16_to_cpu(chap_table->cookie)));
892
893 if (__le16_to_cpu(chap_table->cookie) != CHAP_VALID_COOKIE) {
894 ql4_printk(KERN_ERR, ha, "No valid chap entry found\n");
895 goto exit_delete_chap;
896 }
897
898 chap_table->cookie = __constant_cpu_to_le16(0xFFFF);
899
900 offset = FLASH_CHAP_OFFSET |
901 (chap_tbl_idx * sizeof(struct ql4_chap_table));
902 ret = qla4xxx_set_flash(ha, chap_dma, offset, chap_size,
903 FLASH_OPT_RMW_COMMIT);
904 if (ret == QLA_SUCCESS && ha->chap_list) {
905 mutex_lock(&ha->chap_sem);
906 /* Update ha chap_list cache */
907 memcpy((struct ql4_chap_table *)ha->chap_list + chap_tbl_idx,
908 chap_table, sizeof(struct ql4_chap_table));
909 mutex_unlock(&ha->chap_sem);
910 }
911 if (ret != QLA_SUCCESS)
912 ret = -EINVAL;
913
914 exit_delete_chap:
915 dma_pool_free(ha->chap_dma_pool, chap_table, chap_dma);
916 return ret;
917 }
918
919 /**
920 * qla4xxx_set_chap_entry - Make chap entry with given information
921 * @shost: pointer to host
922 * @data: chap info - credentials, index and type to make chap entry
923 * @len: length of data
924 *
925 * Add or update chap entry with the given information
926 **/
927 static int qla4xxx_set_chap_entry(struct Scsi_Host *shost, void *data, int len)
928 {
929 struct scsi_qla_host *ha = to_qla_host(shost);
930 struct iscsi_chap_rec chap_rec;
931 struct ql4_chap_table *chap_entry = NULL;
932 struct iscsi_param_info *param_info;
933 struct nlattr *attr;
934 int max_chap_entries = 0;
935 int type;
936 int rem = len;
937 int rc = 0;
938 int size;
939
940 memset(&chap_rec, 0, sizeof(chap_rec));
941
942 nla_for_each_attr(attr, data, len, rem) {
943 param_info = nla_data(attr);
944
945 switch (param_info->param) {
946 case ISCSI_CHAP_PARAM_INDEX:
947 chap_rec.chap_tbl_idx = *(uint16_t *)param_info->value;
948 break;
949 case ISCSI_CHAP_PARAM_CHAP_TYPE:
950 chap_rec.chap_type = param_info->value[0];
951 break;
952 case ISCSI_CHAP_PARAM_USERNAME:
953 size = min_t(size_t, sizeof(chap_rec.username),
954 param_info->len);
955 memcpy(chap_rec.username, param_info->value, size);
956 break;
957 case ISCSI_CHAP_PARAM_PASSWORD:
958 size = min_t(size_t, sizeof(chap_rec.password),
959 param_info->len);
960 memcpy(chap_rec.password, param_info->value, size);
961 break;
962 case ISCSI_CHAP_PARAM_PASSWORD_LEN:
963 chap_rec.password_length = param_info->value[0];
964 break;
965 default:
966 ql4_printk(KERN_ERR, ha,
967 "%s: No such sysfs attribute\n", __func__);
968 rc = -ENOSYS;
969 goto exit_set_chap;
970 };
971 }
972
973 if (chap_rec.chap_type == CHAP_TYPE_IN)
974 type = BIDI_CHAP;
975 else
976 type = LOCAL_CHAP;
977
978 if (is_qla80XX(ha))
979 max_chap_entries = (ha->hw.flt_chap_size / 2) /
980 sizeof(struct ql4_chap_table);
981 else
982 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
983
984 mutex_lock(&ha->chap_sem);
985 if (chap_rec.chap_tbl_idx < max_chap_entries) {
986 rc = qla4xxx_get_chap_by_index(ha, chap_rec.chap_tbl_idx,
987 &chap_entry);
988 if (!rc) {
989 if (!(type == qla4xxx_get_chap_type(chap_entry))) {
990 ql4_printk(KERN_INFO, ha,
991 "Type mismatch for CHAP entry %d\n",
992 chap_rec.chap_tbl_idx);
993 rc = -EINVAL;
994 goto exit_unlock_chap;
995 }
996
997 /* If chap index is in use then don't modify it */
998 rc = qla4xxx_is_chap_active(shost,
999 chap_rec.chap_tbl_idx);
1000 if (rc) {
1001 ql4_printk(KERN_INFO, ha,
1002 "CHAP entry %d is in use\n",
1003 chap_rec.chap_tbl_idx);
1004 rc = -EBUSY;
1005 goto exit_unlock_chap;
1006 }
1007 }
1008 } else {
1009 rc = qla4xxx_find_free_chap_index(ha, &chap_rec.chap_tbl_idx);
1010 if (rc) {
1011 ql4_printk(KERN_INFO, ha, "CHAP entry not available\n");
1012 rc = -EBUSY;
1013 goto exit_unlock_chap;
1014 }
1015 }
1016
1017 rc = qla4xxx_set_chap(ha, chap_rec.username, chap_rec.password,
1018 chap_rec.chap_tbl_idx, type);
1019
1020 exit_unlock_chap:
1021 mutex_unlock(&ha->chap_sem);
1022
1023 exit_set_chap:
1024 return rc;
1025 }
1026
1027
1028 static int qla4xxx_get_host_stats(struct Scsi_Host *shost, char *buf, int len)
1029 {
1030 struct scsi_qla_host *ha = to_qla_host(shost);
1031 struct iscsi_offload_host_stats *host_stats = NULL;
1032 int host_stats_size;
1033 int ret = 0;
1034 int ddb_idx = 0;
1035 struct ql_iscsi_stats *ql_iscsi_stats = NULL;
1036 int stats_size;
1037 dma_addr_t iscsi_stats_dma;
1038
1039 DEBUG2(ql4_printk(KERN_INFO, ha, "Func: %s\n", __func__));
1040
1041 host_stats_size = sizeof(struct iscsi_offload_host_stats);
1042
1043 if (host_stats_size != len) {
1044 ql4_printk(KERN_INFO, ha, "%s: host_stats size mismatch expected = %d, is = %d\n",
1045 __func__, len, host_stats_size);
1046 ret = -EINVAL;
1047 goto exit_host_stats;
1048 }
1049 host_stats = (struct iscsi_offload_host_stats *)buf;
1050
1051 if (!buf) {
1052 ret = -ENOMEM;
1053 goto exit_host_stats;
1054 }
1055
1056 stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats));
1057
1058 ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size,
1059 &iscsi_stats_dma, GFP_KERNEL);
1060 if (!ql_iscsi_stats) {
1061 ql4_printk(KERN_ERR, ha,
1062 "Unable to allocate memory for iscsi stats\n");
1063 ret = -ENOMEM;
1064 goto exit_host_stats;
1065 }
1066
1067 ret = qla4xxx_get_mgmt_data(ha, ddb_idx, stats_size,
1068 iscsi_stats_dma);
1069 if (ret != QLA_SUCCESS) {
1070 ql4_printk(KERN_ERR, ha,
1071 "Unable to retrieve iscsi stats\n");
1072 ret = -EIO;
1073 goto exit_host_stats;
1074 }
1075 host_stats->mactx_frames = le64_to_cpu(ql_iscsi_stats->mac_tx_frames);
1076 host_stats->mactx_bytes = le64_to_cpu(ql_iscsi_stats->mac_tx_bytes);
1077 host_stats->mactx_multicast_frames =
1078 le64_to_cpu(ql_iscsi_stats->mac_tx_multicast_frames);
1079 host_stats->mactx_broadcast_frames =
1080 le64_to_cpu(ql_iscsi_stats->mac_tx_broadcast_frames);
1081 host_stats->mactx_pause_frames =
1082 le64_to_cpu(ql_iscsi_stats->mac_tx_pause_frames);
1083 host_stats->mactx_control_frames =
1084 le64_to_cpu(ql_iscsi_stats->mac_tx_control_frames);
1085 host_stats->mactx_deferral =
1086 le64_to_cpu(ql_iscsi_stats->mac_tx_deferral);
1087 host_stats->mactx_excess_deferral =
1088 le64_to_cpu(ql_iscsi_stats->mac_tx_excess_deferral);
1089 host_stats->mactx_late_collision =
1090 le64_to_cpu(ql_iscsi_stats->mac_tx_late_collision);
1091 host_stats->mactx_abort = le64_to_cpu(ql_iscsi_stats->mac_tx_abort);
1092 host_stats->mactx_single_collision =
1093 le64_to_cpu(ql_iscsi_stats->mac_tx_single_collision);
1094 host_stats->mactx_multiple_collision =
1095 le64_to_cpu(ql_iscsi_stats->mac_tx_multiple_collision);
1096 host_stats->mactx_collision =
1097 le64_to_cpu(ql_iscsi_stats->mac_tx_collision);
1098 host_stats->mactx_frames_dropped =
1099 le64_to_cpu(ql_iscsi_stats->mac_tx_frames_dropped);
1100 host_stats->mactx_jumbo_frames =
1101 le64_to_cpu(ql_iscsi_stats->mac_tx_jumbo_frames);
1102 host_stats->macrx_frames = le64_to_cpu(ql_iscsi_stats->mac_rx_frames);
1103 host_stats->macrx_bytes = le64_to_cpu(ql_iscsi_stats->mac_rx_bytes);
1104 host_stats->macrx_unknown_control_frames =
1105 le64_to_cpu(ql_iscsi_stats->mac_rx_unknown_control_frames);
1106 host_stats->macrx_pause_frames =
1107 le64_to_cpu(ql_iscsi_stats->mac_rx_pause_frames);
1108 host_stats->macrx_control_frames =
1109 le64_to_cpu(ql_iscsi_stats->mac_rx_control_frames);
1110 host_stats->macrx_dribble =
1111 le64_to_cpu(ql_iscsi_stats->mac_rx_dribble);
1112 host_stats->macrx_frame_length_error =
1113 le64_to_cpu(ql_iscsi_stats->mac_rx_frame_length_error);
1114 host_stats->macrx_jabber = le64_to_cpu(ql_iscsi_stats->mac_rx_jabber);
1115 host_stats->macrx_carrier_sense_error =
1116 le64_to_cpu(ql_iscsi_stats->mac_rx_carrier_sense_error);
1117 host_stats->macrx_frame_discarded =
1118 le64_to_cpu(ql_iscsi_stats->mac_rx_frame_discarded);
1119 host_stats->macrx_frames_dropped =
1120 le64_to_cpu(ql_iscsi_stats->mac_rx_frames_dropped);
1121 host_stats->mac_crc_error = le64_to_cpu(ql_iscsi_stats->mac_crc_error);
1122 host_stats->mac_encoding_error =
1123 le64_to_cpu(ql_iscsi_stats->mac_encoding_error);
1124 host_stats->macrx_length_error_large =
1125 le64_to_cpu(ql_iscsi_stats->mac_rx_length_error_large);
1126 host_stats->macrx_length_error_small =
1127 le64_to_cpu(ql_iscsi_stats->mac_rx_length_error_small);
1128 host_stats->macrx_multicast_frames =
1129 le64_to_cpu(ql_iscsi_stats->mac_rx_multicast_frames);
1130 host_stats->macrx_broadcast_frames =
1131 le64_to_cpu(ql_iscsi_stats->mac_rx_broadcast_frames);
1132 host_stats->iptx_packets = le64_to_cpu(ql_iscsi_stats->ip_tx_packets);
1133 host_stats->iptx_bytes = le64_to_cpu(ql_iscsi_stats->ip_tx_bytes);
1134 host_stats->iptx_fragments =
1135 le64_to_cpu(ql_iscsi_stats->ip_tx_fragments);
1136 host_stats->iprx_packets = le64_to_cpu(ql_iscsi_stats->ip_rx_packets);
1137 host_stats->iprx_bytes = le64_to_cpu(ql_iscsi_stats->ip_rx_bytes);
1138 host_stats->iprx_fragments =
1139 le64_to_cpu(ql_iscsi_stats->ip_rx_fragments);
1140 host_stats->ip_datagram_reassembly =
1141 le64_to_cpu(ql_iscsi_stats->ip_datagram_reassembly);
1142 host_stats->ip_invalid_address_error =
1143 le64_to_cpu(ql_iscsi_stats->ip_invalid_address_error);
1144 host_stats->ip_error_packets =
1145 le64_to_cpu(ql_iscsi_stats->ip_error_packets);
1146 host_stats->ip_fragrx_overlap =
1147 le64_to_cpu(ql_iscsi_stats->ip_fragrx_overlap);
1148 host_stats->ip_fragrx_outoforder =
1149 le64_to_cpu(ql_iscsi_stats->ip_fragrx_outoforder);
1150 host_stats->ip_datagram_reassembly_timeout =
1151 le64_to_cpu(ql_iscsi_stats->ip_datagram_reassembly_timeout);
1152 host_stats->ipv6tx_packets =
1153 le64_to_cpu(ql_iscsi_stats->ipv6_tx_packets);
1154 host_stats->ipv6tx_bytes = le64_to_cpu(ql_iscsi_stats->ipv6_tx_bytes);
1155 host_stats->ipv6tx_fragments =
1156 le64_to_cpu(ql_iscsi_stats->ipv6_tx_fragments);
1157 host_stats->ipv6rx_packets =
1158 le64_to_cpu(ql_iscsi_stats->ipv6_rx_packets);
1159 host_stats->ipv6rx_bytes = le64_to_cpu(ql_iscsi_stats->ipv6_rx_bytes);
1160 host_stats->ipv6rx_fragments =
1161 le64_to_cpu(ql_iscsi_stats->ipv6_rx_fragments);
1162 host_stats->ipv6_datagram_reassembly =
1163 le64_to_cpu(ql_iscsi_stats->ipv6_datagram_reassembly);
1164 host_stats->ipv6_invalid_address_error =
1165 le64_to_cpu(ql_iscsi_stats->ipv6_invalid_address_error);
1166 host_stats->ipv6_error_packets =
1167 le64_to_cpu(ql_iscsi_stats->ipv6_error_packets);
1168 host_stats->ipv6_fragrx_overlap =
1169 le64_to_cpu(ql_iscsi_stats->ipv6_fragrx_overlap);
1170 host_stats->ipv6_fragrx_outoforder =
1171 le64_to_cpu(ql_iscsi_stats->ipv6_fragrx_outoforder);
1172 host_stats->ipv6_datagram_reassembly_timeout =
1173 le64_to_cpu(ql_iscsi_stats->ipv6_datagram_reassembly_timeout);
1174 host_stats->tcptx_segments =
1175 le64_to_cpu(ql_iscsi_stats->tcp_tx_segments);
1176 host_stats->tcptx_bytes = le64_to_cpu(ql_iscsi_stats->tcp_tx_bytes);
1177 host_stats->tcprx_segments =
1178 le64_to_cpu(ql_iscsi_stats->tcp_rx_segments);
1179 host_stats->tcprx_byte = le64_to_cpu(ql_iscsi_stats->tcp_rx_byte);
1180 host_stats->tcp_duplicate_ack_retx =
1181 le64_to_cpu(ql_iscsi_stats->tcp_duplicate_ack_retx);
1182 host_stats->tcp_retx_timer_expired =
1183 le64_to_cpu(ql_iscsi_stats->tcp_retx_timer_expired);
1184 host_stats->tcprx_duplicate_ack =
1185 le64_to_cpu(ql_iscsi_stats->tcp_rx_duplicate_ack);
1186 host_stats->tcprx_pure_ackr =
1187 le64_to_cpu(ql_iscsi_stats->tcp_rx_pure_ackr);
1188 host_stats->tcptx_delayed_ack =
1189 le64_to_cpu(ql_iscsi_stats->tcp_tx_delayed_ack);
1190 host_stats->tcptx_pure_ack =
1191 le64_to_cpu(ql_iscsi_stats->tcp_tx_pure_ack);
1192 host_stats->tcprx_segment_error =
1193 le64_to_cpu(ql_iscsi_stats->tcp_rx_segment_error);
1194 host_stats->tcprx_segment_outoforder =
1195 le64_to_cpu(ql_iscsi_stats->tcp_rx_segment_outoforder);
1196 host_stats->tcprx_window_probe =
1197 le64_to_cpu(ql_iscsi_stats->tcp_rx_window_probe);
1198 host_stats->tcprx_window_update =
1199 le64_to_cpu(ql_iscsi_stats->tcp_rx_window_update);
1200 host_stats->tcptx_window_probe_persist =
1201 le64_to_cpu(ql_iscsi_stats->tcp_tx_window_probe_persist);
1202 host_stats->ecc_error_correction =
1203 le64_to_cpu(ql_iscsi_stats->ecc_error_correction);
1204 host_stats->iscsi_pdu_tx = le64_to_cpu(ql_iscsi_stats->iscsi_pdu_tx);
1205 host_stats->iscsi_data_bytes_tx =
1206 le64_to_cpu(ql_iscsi_stats->iscsi_data_bytes_tx);
1207 host_stats->iscsi_pdu_rx = le64_to_cpu(ql_iscsi_stats->iscsi_pdu_rx);
1208 host_stats->iscsi_data_bytes_rx =
1209 le64_to_cpu(ql_iscsi_stats->iscsi_data_bytes_rx);
1210 host_stats->iscsi_io_completed =
1211 le64_to_cpu(ql_iscsi_stats->iscsi_io_completed);
1212 host_stats->iscsi_unexpected_io_rx =
1213 le64_to_cpu(ql_iscsi_stats->iscsi_unexpected_io_rx);
1214 host_stats->iscsi_format_error =
1215 le64_to_cpu(ql_iscsi_stats->iscsi_format_error);
1216 host_stats->iscsi_hdr_digest_error =
1217 le64_to_cpu(ql_iscsi_stats->iscsi_hdr_digest_error);
1218 host_stats->iscsi_data_digest_error =
1219 le64_to_cpu(ql_iscsi_stats->iscsi_data_digest_error);
1220 host_stats->iscsi_sequence_error =
1221 le64_to_cpu(ql_iscsi_stats->iscsi_sequence_error);
1222 exit_host_stats:
1223 if (ql_iscsi_stats)
1224 dma_free_coherent(&ha->pdev->dev, host_stats_size,
1225 ql_iscsi_stats, iscsi_stats_dma);
1226
1227 ql4_printk(KERN_INFO, ha, "%s: Get host stats done\n",
1228 __func__);
1229 return ret;
1230 }
1231
1232 static int qla4xxx_get_iface_param(struct iscsi_iface *iface,
1233 enum iscsi_param_type param_type,
1234 int param, char *buf)
1235 {
1236 struct Scsi_Host *shost = iscsi_iface_to_shost(iface);
1237 struct scsi_qla_host *ha = to_qla_host(shost);
1238 int ival;
1239 char *pval = NULL;
1240 int len = -ENOSYS;
1241
1242 if (param_type == ISCSI_NET_PARAM) {
1243 switch (param) {
1244 case ISCSI_NET_PARAM_IPV4_ADDR:
1245 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address);
1246 break;
1247 case ISCSI_NET_PARAM_IPV4_SUBNET:
1248 len = sprintf(buf, "%pI4\n",
1249 &ha->ip_config.subnet_mask);
1250 break;
1251 case ISCSI_NET_PARAM_IPV4_GW:
1252 len = sprintf(buf, "%pI4\n", &ha->ip_config.gateway);
1253 break;
1254 case ISCSI_NET_PARAM_IFACE_ENABLE:
1255 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1256 OP_STATE(ha->ip_config.ipv4_options,
1257 IPOPT_IPV4_PROTOCOL_ENABLE, pval);
1258 } else {
1259 OP_STATE(ha->ip_config.ipv6_options,
1260 IPV6_OPT_IPV6_PROTOCOL_ENABLE, pval);
1261 }
1262
1263 len = sprintf(buf, "%s\n", pval);
1264 break;
1265 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
1266 len = sprintf(buf, "%s\n",
1267 (ha->ip_config.tcp_options &
1268 TCPOPT_DHCP_ENABLE) ?
1269 "dhcp" : "static");
1270 break;
1271 case ISCSI_NET_PARAM_IPV6_ADDR:
1272 if (iface->iface_num == 0)
1273 len = sprintf(buf, "%pI6\n",
1274 &ha->ip_config.ipv6_addr0);
1275 if (iface->iface_num == 1)
1276 len = sprintf(buf, "%pI6\n",
1277 &ha->ip_config.ipv6_addr1);
1278 break;
1279 case ISCSI_NET_PARAM_IPV6_LINKLOCAL:
1280 len = sprintf(buf, "%pI6\n",
1281 &ha->ip_config.ipv6_link_local_addr);
1282 break;
1283 case ISCSI_NET_PARAM_IPV6_ROUTER:
1284 len = sprintf(buf, "%pI6\n",
1285 &ha->ip_config.ipv6_default_router_addr);
1286 break;
1287 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG:
1288 pval = (ha->ip_config.ipv6_addl_options &
1289 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE) ?
1290 "nd" : "static";
1291
1292 len = sprintf(buf, "%s\n", pval);
1293 break;
1294 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG:
1295 pval = (ha->ip_config.ipv6_addl_options &
1296 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR) ?
1297 "auto" : "static";
1298
1299 len = sprintf(buf, "%s\n", pval);
1300 break;
1301 case ISCSI_NET_PARAM_VLAN_ID:
1302 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1303 ival = ha->ip_config.ipv4_vlan_tag &
1304 ISCSI_MAX_VLAN_ID;
1305 else
1306 ival = ha->ip_config.ipv6_vlan_tag &
1307 ISCSI_MAX_VLAN_ID;
1308
1309 len = sprintf(buf, "%d\n", ival);
1310 break;
1311 case ISCSI_NET_PARAM_VLAN_PRIORITY:
1312 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1313 ival = (ha->ip_config.ipv4_vlan_tag >> 13) &
1314 ISCSI_MAX_VLAN_PRIORITY;
1315 else
1316 ival = (ha->ip_config.ipv6_vlan_tag >> 13) &
1317 ISCSI_MAX_VLAN_PRIORITY;
1318
1319 len = sprintf(buf, "%d\n", ival);
1320 break;
1321 case ISCSI_NET_PARAM_VLAN_ENABLED:
1322 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1323 OP_STATE(ha->ip_config.ipv4_options,
1324 IPOPT_VLAN_TAGGING_ENABLE, pval);
1325 } else {
1326 OP_STATE(ha->ip_config.ipv6_options,
1327 IPV6_OPT_VLAN_TAGGING_ENABLE, pval);
1328 }
1329 len = sprintf(buf, "%s\n", pval);
1330 break;
1331 case ISCSI_NET_PARAM_MTU:
1332 len = sprintf(buf, "%d\n", ha->ip_config.eth_mtu_size);
1333 break;
1334 case ISCSI_NET_PARAM_PORT:
1335 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1336 len = sprintf(buf, "%d\n",
1337 ha->ip_config.ipv4_port);
1338 else
1339 len = sprintf(buf, "%d\n",
1340 ha->ip_config.ipv6_port);
1341 break;
1342 case ISCSI_NET_PARAM_IPADDR_STATE:
1343 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1344 pval = iscsi_get_ipaddress_state_name(
1345 ha->ip_config.ipv4_addr_state);
1346 } else {
1347 if (iface->iface_num == 0)
1348 pval = iscsi_get_ipaddress_state_name(
1349 ha->ip_config.ipv6_addr0_state);
1350 else if (iface->iface_num == 1)
1351 pval = iscsi_get_ipaddress_state_name(
1352 ha->ip_config.ipv6_addr1_state);
1353 }
1354
1355 len = sprintf(buf, "%s\n", pval);
1356 break;
1357 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_STATE:
1358 pval = iscsi_get_ipaddress_state_name(
1359 ha->ip_config.ipv6_link_local_state);
1360 len = sprintf(buf, "%s\n", pval);
1361 break;
1362 case ISCSI_NET_PARAM_IPV6_ROUTER_STATE:
1363 pval = iscsi_get_router_state_name(
1364 ha->ip_config.ipv6_default_router_state);
1365 len = sprintf(buf, "%s\n", pval);
1366 break;
1367 case ISCSI_NET_PARAM_DELAYED_ACK_EN:
1368 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1369 OP_STATE(~ha->ip_config.tcp_options,
1370 TCPOPT_DELAYED_ACK_DISABLE, pval);
1371 } else {
1372 OP_STATE(~ha->ip_config.ipv6_tcp_options,
1373 IPV6_TCPOPT_DELAYED_ACK_DISABLE, pval);
1374 }
1375 len = sprintf(buf, "%s\n", pval);
1376 break;
1377 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE:
1378 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1379 OP_STATE(~ha->ip_config.tcp_options,
1380 TCPOPT_NAGLE_ALGO_DISABLE, pval);
1381 } else {
1382 OP_STATE(~ha->ip_config.ipv6_tcp_options,
1383 IPV6_TCPOPT_NAGLE_ALGO_DISABLE, pval);
1384 }
1385 len = sprintf(buf, "%s\n", pval);
1386 break;
1387 case ISCSI_NET_PARAM_TCP_WSF_DISABLE:
1388 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1389 OP_STATE(~ha->ip_config.tcp_options,
1390 TCPOPT_WINDOW_SCALE_DISABLE, pval);
1391 } else {
1392 OP_STATE(~ha->ip_config.ipv6_tcp_options,
1393 IPV6_TCPOPT_WINDOW_SCALE_DISABLE,
1394 pval);
1395 }
1396 len = sprintf(buf, "%s\n", pval);
1397 break;
1398 case ISCSI_NET_PARAM_TCP_WSF:
1399 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1400 len = sprintf(buf, "%d\n",
1401 ha->ip_config.tcp_wsf);
1402 else
1403 len = sprintf(buf, "%d\n",
1404 ha->ip_config.ipv6_tcp_wsf);
1405 break;
1406 case ISCSI_NET_PARAM_TCP_TIMER_SCALE:
1407 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1408 ival = (ha->ip_config.tcp_options &
1409 TCPOPT_TIMER_SCALE) >> 1;
1410 else
1411 ival = (ha->ip_config.ipv6_tcp_options &
1412 IPV6_TCPOPT_TIMER_SCALE) >> 1;
1413
1414 len = sprintf(buf, "%d\n", ival);
1415 break;
1416 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN:
1417 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1418 OP_STATE(ha->ip_config.tcp_options,
1419 TCPOPT_TIMESTAMP_ENABLE, pval);
1420 } else {
1421 OP_STATE(ha->ip_config.ipv6_tcp_options,
1422 IPV6_TCPOPT_TIMESTAMP_EN, pval);
1423 }
1424 len = sprintf(buf, "%s\n", pval);
1425 break;
1426 case ISCSI_NET_PARAM_CACHE_ID:
1427 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1428 len = sprintf(buf, "%d\n",
1429 ha->ip_config.ipv4_cache_id);
1430 else
1431 len = sprintf(buf, "%d\n",
1432 ha->ip_config.ipv6_cache_id);
1433 break;
1434 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN:
1435 OP_STATE(ha->ip_config.tcp_options,
1436 TCPOPT_DNS_SERVER_IP_EN, pval);
1437
1438 len = sprintf(buf, "%s\n", pval);
1439 break;
1440 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN:
1441 OP_STATE(ha->ip_config.tcp_options,
1442 TCPOPT_SLP_DA_INFO_EN, pval);
1443
1444 len = sprintf(buf, "%s\n", pval);
1445 break;
1446 case ISCSI_NET_PARAM_IPV4_TOS_EN:
1447 OP_STATE(ha->ip_config.ipv4_options,
1448 IPOPT_IPV4_TOS_EN, pval);
1449
1450 len = sprintf(buf, "%s\n", pval);
1451 break;
1452 case ISCSI_NET_PARAM_IPV4_TOS:
1453 len = sprintf(buf, "%d\n", ha->ip_config.ipv4_tos);
1454 break;
1455 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN:
1456 OP_STATE(ha->ip_config.ipv4_options,
1457 IPOPT_GRAT_ARP_EN, pval);
1458
1459 len = sprintf(buf, "%s\n", pval);
1460 break;
1461 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN:
1462 OP_STATE(ha->ip_config.ipv4_options, IPOPT_ALT_CID_EN,
1463 pval);
1464
1465 len = sprintf(buf, "%s\n", pval);
1466 break;
1467 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID:
1468 pval = (ha->ip_config.ipv4_alt_cid_len) ?
1469 (char *)ha->ip_config.ipv4_alt_cid : "";
1470
1471 len = sprintf(buf, "%s\n", pval);
1472 break;
1473 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN:
1474 OP_STATE(ha->ip_config.ipv4_options,
1475 IPOPT_REQ_VID_EN, pval);
1476
1477 len = sprintf(buf, "%s\n", pval);
1478 break;
1479 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN:
1480 OP_STATE(ha->ip_config.ipv4_options,
1481 IPOPT_USE_VID_EN, pval);
1482
1483 len = sprintf(buf, "%s\n", pval);
1484 break;
1485 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID:
1486 pval = (ha->ip_config.ipv4_vid_len) ?
1487 (char *)ha->ip_config.ipv4_vid : "";
1488
1489 len = sprintf(buf, "%s\n", pval);
1490 break;
1491 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN:
1492 OP_STATE(ha->ip_config.ipv4_options,
1493 IPOPT_LEARN_IQN_EN, pval);
1494
1495 len = sprintf(buf, "%s\n", pval);
1496 break;
1497 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE:
1498 OP_STATE(~ha->ip_config.ipv4_options,
1499 IPOPT_FRAGMENTATION_DISABLE, pval);
1500
1501 len = sprintf(buf, "%s\n", pval);
1502 break;
1503 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN:
1504 OP_STATE(ha->ip_config.ipv4_options,
1505 IPOPT_IN_FORWARD_EN, pval);
1506
1507 len = sprintf(buf, "%s\n", pval);
1508 break;
1509 case ISCSI_NET_PARAM_REDIRECT_EN:
1510 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1511 OP_STATE(ha->ip_config.ipv4_options,
1512 IPOPT_ARP_REDIRECT_EN, pval);
1513 } else {
1514 OP_STATE(ha->ip_config.ipv6_options,
1515 IPV6_OPT_REDIRECT_EN, pval);
1516 }
1517 len = sprintf(buf, "%s\n", pval);
1518 break;
1519 case ISCSI_NET_PARAM_IPV4_TTL:
1520 len = sprintf(buf, "%d\n", ha->ip_config.ipv4_ttl);
1521 break;
1522 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN:
1523 OP_STATE(ha->ip_config.ipv6_options,
1524 IPV6_OPT_GRAT_NEIGHBOR_ADV_EN, pval);
1525
1526 len = sprintf(buf, "%s\n", pval);
1527 break;
1528 case ISCSI_NET_PARAM_IPV6_MLD_EN:
1529 OP_STATE(ha->ip_config.ipv6_addl_options,
1530 IPV6_ADDOPT_MLD_EN, pval);
1531
1532 len = sprintf(buf, "%s\n", pval);
1533 break;
1534 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL:
1535 len = sprintf(buf, "%u\n", ha->ip_config.ipv6_flow_lbl);
1536 break;
1537 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS:
1538 len = sprintf(buf, "%d\n",
1539 ha->ip_config.ipv6_traffic_class);
1540 break;
1541 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT:
1542 len = sprintf(buf, "%d\n",
1543 ha->ip_config.ipv6_hop_limit);
1544 break;
1545 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO:
1546 len = sprintf(buf, "%d\n",
1547 ha->ip_config.ipv6_nd_reach_time);
1548 break;
1549 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME:
1550 len = sprintf(buf, "%d\n",
1551 ha->ip_config.ipv6_nd_rexmit_timer);
1552 break;
1553 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO:
1554 len = sprintf(buf, "%d\n",
1555 ha->ip_config.ipv6_nd_stale_timeout);
1556 break;
1557 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT:
1558 len = sprintf(buf, "%d\n",
1559 ha->ip_config.ipv6_dup_addr_detect_count);
1560 break;
1561 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU:
1562 len = sprintf(buf, "%d\n",
1563 ha->ip_config.ipv6_gw_advrt_mtu);
1564 break;
1565 default:
1566 len = -ENOSYS;
1567 }
1568 } else if (param_type == ISCSI_IFACE_PARAM) {
1569 switch (param) {
1570 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO:
1571 len = sprintf(buf, "%d\n", ha->ip_config.def_timeout);
1572 break;
1573 case ISCSI_IFACE_PARAM_HDRDGST_EN:
1574 OP_STATE(ha->ip_config.iscsi_options,
1575 ISCSIOPTS_HEADER_DIGEST_EN, pval);
1576
1577 len = sprintf(buf, "%s\n", pval);
1578 break;
1579 case ISCSI_IFACE_PARAM_DATADGST_EN:
1580 OP_STATE(ha->ip_config.iscsi_options,
1581 ISCSIOPTS_DATA_DIGEST_EN, pval);
1582
1583 len = sprintf(buf, "%s\n", pval);
1584 break;
1585 case ISCSI_IFACE_PARAM_IMM_DATA_EN:
1586 OP_STATE(ha->ip_config.iscsi_options,
1587 ISCSIOPTS_IMMEDIATE_DATA_EN, pval);
1588
1589 len = sprintf(buf, "%s\n", pval);
1590 break;
1591 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN:
1592 OP_STATE(ha->ip_config.iscsi_options,
1593 ISCSIOPTS_INITIAL_R2T_EN, pval);
1594
1595 len = sprintf(buf, "%s\n", pval);
1596 break;
1597 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN:
1598 OP_STATE(ha->ip_config.iscsi_options,
1599 ISCSIOPTS_DATA_SEQ_INORDER_EN, pval);
1600
1601 len = sprintf(buf, "%s\n", pval);
1602 break;
1603 case ISCSI_IFACE_PARAM_PDU_INORDER_EN:
1604 OP_STATE(ha->ip_config.iscsi_options,
1605 ISCSIOPTS_DATA_PDU_INORDER_EN, pval);
1606
1607 len = sprintf(buf, "%s\n", pval);
1608 break;
1609 case ISCSI_IFACE_PARAM_ERL:
1610 len = sprintf(buf, "%d\n",
1611 (ha->ip_config.iscsi_options &
1612 ISCSIOPTS_ERL));
1613 break;
1614 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH:
1615 len = sprintf(buf, "%u\n",
1616 ha->ip_config.iscsi_max_pdu_size *
1617 BYTE_UNITS);
1618 break;
1619 case ISCSI_IFACE_PARAM_FIRST_BURST:
1620 len = sprintf(buf, "%u\n",
1621 ha->ip_config.iscsi_first_burst_len *
1622 BYTE_UNITS);
1623 break;
1624 case ISCSI_IFACE_PARAM_MAX_R2T:
1625 len = sprintf(buf, "%d\n",
1626 ha->ip_config.iscsi_max_outstnd_r2t);
1627 break;
1628 case ISCSI_IFACE_PARAM_MAX_BURST:
1629 len = sprintf(buf, "%u\n",
1630 ha->ip_config.iscsi_max_burst_len *
1631 BYTE_UNITS);
1632 break;
1633 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN:
1634 OP_STATE(ha->ip_config.iscsi_options,
1635 ISCSIOPTS_CHAP_AUTH_EN, pval);
1636
1637 len = sprintf(buf, "%s\n", pval);
1638 break;
1639 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN:
1640 OP_STATE(ha->ip_config.iscsi_options,
1641 ISCSIOPTS_BIDI_CHAP_EN, pval);
1642
1643 len = sprintf(buf, "%s\n", pval);
1644 break;
1645 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL:
1646 OP_STATE(ha->ip_config.iscsi_options,
1647 ISCSIOPTS_DISCOVERY_AUTH_EN, pval);
1648
1649 len = sprintf(buf, "%s\n", pval);
1650 break;
1651 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN:
1652 OP_STATE(ha->ip_config.iscsi_options,
1653 ISCSIOPTS_DISCOVERY_LOGOUT_EN, pval);
1654
1655 len = sprintf(buf, "%s\n", pval);
1656 break;
1657 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN:
1658 OP_STATE(ha->ip_config.iscsi_options,
1659 ISCSIOPTS_STRICT_LOGIN_COMP_EN, pval);
1660
1661 len = sprintf(buf, "%s\n", pval);
1662 break;
1663 case ISCSI_IFACE_PARAM_INITIATOR_NAME:
1664 len = sprintf(buf, "%s\n", ha->ip_config.iscsi_name);
1665 break;
1666 default:
1667 len = -ENOSYS;
1668 }
1669 }
1670
1671 return len;
1672 }
1673
1674 static struct iscsi_endpoint *
1675 qla4xxx_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr,
1676 int non_blocking)
1677 {
1678 int ret;
1679 struct iscsi_endpoint *ep;
1680 struct qla_endpoint *qla_ep;
1681 struct scsi_qla_host *ha;
1682 struct sockaddr_in *addr;
1683 struct sockaddr_in6 *addr6;
1684
1685 if (!shost) {
1686 ret = -ENXIO;
1687 pr_err("%s: shost is NULL\n", __func__);
1688 return ERR_PTR(ret);
1689 }
1690
1691 ha = iscsi_host_priv(shost);
1692 ep = iscsi_create_endpoint(sizeof(struct qla_endpoint));
1693 if (!ep) {
1694 ret = -ENOMEM;
1695 return ERR_PTR(ret);
1696 }
1697
1698 qla_ep = ep->dd_data;
1699 memset(qla_ep, 0, sizeof(struct qla_endpoint));
1700 if (dst_addr->sa_family == AF_INET) {
1701 memcpy(&qla_ep->dst_addr, dst_addr, sizeof(struct sockaddr_in));
1702 addr = (struct sockaddr_in *)&qla_ep->dst_addr;
1703 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI4\n", __func__,
1704 (char *)&addr->sin_addr));
1705 } else if (dst_addr->sa_family == AF_INET6) {
1706 memcpy(&qla_ep->dst_addr, dst_addr,
1707 sizeof(struct sockaddr_in6));
1708 addr6 = (struct sockaddr_in6 *)&qla_ep->dst_addr;
1709 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI6\n", __func__,
1710 (char *)&addr6->sin6_addr));
1711 } else {
1712 ql4_printk(KERN_WARNING, ha, "%s: Invalid endpoint\n",
1713 __func__);
1714 }
1715
1716 qla_ep->host = shost;
1717
1718 return ep;
1719 }
1720
1721 static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms)
1722 {
1723 struct qla_endpoint *qla_ep;
1724 struct scsi_qla_host *ha;
1725 int ret = 0;
1726
1727 qla_ep = ep->dd_data;
1728 ha = to_qla_host(qla_ep->host);
1729 DEBUG2(pr_info_ratelimited("%s: host: %ld\n", __func__, ha->host_no));
1730
1731 if (adapter_up(ha) && !test_bit(AF_BUILD_DDB_LIST, &ha->flags))
1732 ret = 1;
1733
1734 return ret;
1735 }
1736
1737 static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep)
1738 {
1739 struct qla_endpoint *qla_ep;
1740 struct scsi_qla_host *ha;
1741
1742 qla_ep = ep->dd_data;
1743 ha = to_qla_host(qla_ep->host);
1744 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__,
1745 ha->host_no));
1746 iscsi_destroy_endpoint(ep);
1747 }
1748
1749 static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep,
1750 enum iscsi_param param,
1751 char *buf)
1752 {
1753 struct qla_endpoint *qla_ep = ep->dd_data;
1754 struct sockaddr *dst_addr;
1755 struct scsi_qla_host *ha;
1756
1757 if (!qla_ep)
1758 return -ENOTCONN;
1759
1760 ha = to_qla_host(qla_ep->host);
1761 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__,
1762 ha->host_no));
1763
1764 switch (param) {
1765 case ISCSI_PARAM_CONN_PORT:
1766 case ISCSI_PARAM_CONN_ADDRESS:
1767 dst_addr = (struct sockaddr *)&qla_ep->dst_addr;
1768 if (!dst_addr)
1769 return -ENOTCONN;
1770
1771 return iscsi_conn_get_addr_param((struct sockaddr_storage *)
1772 &qla_ep->dst_addr, param, buf);
1773 default:
1774 return -ENOSYS;
1775 }
1776 }
1777
1778 static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn,
1779 struct iscsi_stats *stats)
1780 {
1781 struct iscsi_session *sess;
1782 struct iscsi_cls_session *cls_sess;
1783 struct ddb_entry *ddb_entry;
1784 struct scsi_qla_host *ha;
1785 struct ql_iscsi_stats *ql_iscsi_stats;
1786 int stats_size;
1787 int ret;
1788 dma_addr_t iscsi_stats_dma;
1789
1790 cls_sess = iscsi_conn_to_session(cls_conn);
1791 sess = cls_sess->dd_data;
1792 ddb_entry = sess->dd_data;
1793 ha = ddb_entry->ha;
1794
1795 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__,
1796 ha->host_no));
1797 stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats));
1798 /* Allocate memory */
1799 ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size,
1800 &iscsi_stats_dma, GFP_KERNEL);
1801 if (!ql_iscsi_stats) {
1802 ql4_printk(KERN_ERR, ha,
1803 "Unable to allocate memory for iscsi stats\n");
1804 goto exit_get_stats;
1805 }
1806
1807 ret = qla4xxx_get_mgmt_data(ha, ddb_entry->fw_ddb_index, stats_size,
1808 iscsi_stats_dma);
1809 if (ret != QLA_SUCCESS) {
1810 ql4_printk(KERN_ERR, ha,
1811 "Unable to retrieve iscsi stats\n");
1812 goto free_stats;
1813 }
1814
1815 /* octets */
1816 stats->txdata_octets = le64_to_cpu(ql_iscsi_stats->tx_data_octets);
1817 stats->rxdata_octets = le64_to_cpu(ql_iscsi_stats->rx_data_octets);
1818 /* xmit pdus */
1819 stats->noptx_pdus = le32_to_cpu(ql_iscsi_stats->tx_nopout_pdus);
1820 stats->scsicmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_cmd_pdus);
1821 stats->tmfcmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_tmf_cmd_pdus);
1822 stats->login_pdus = le32_to_cpu(ql_iscsi_stats->tx_login_cmd_pdus);
1823 stats->text_pdus = le32_to_cpu(ql_iscsi_stats->tx_text_cmd_pdus);
1824 stats->dataout_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_write_pdus);
1825 stats->logout_pdus = le32_to_cpu(ql_iscsi_stats->tx_logout_cmd_pdus);
1826 stats->snack_pdus = le32_to_cpu(ql_iscsi_stats->tx_snack_req_pdus);
1827 /* recv pdus */
1828 stats->noprx_pdus = le32_to_cpu(ql_iscsi_stats->rx_nopin_pdus);
1829 stats->scsirsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_resp_pdus);
1830 stats->tmfrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_tmf_resp_pdus);
1831 stats->textrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_text_resp_pdus);
1832 stats->datain_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_read_pdus);
1833 stats->logoutrsp_pdus =
1834 le32_to_cpu(ql_iscsi_stats->rx_logout_resp_pdus);
1835 stats->r2t_pdus = le32_to_cpu(ql_iscsi_stats->rx_r2t_pdus);
1836 stats->async_pdus = le32_to_cpu(ql_iscsi_stats->rx_async_pdus);
1837 stats->rjt_pdus = le32_to_cpu(ql_iscsi_stats->rx_reject_pdus);
1838
1839 free_stats:
1840 dma_free_coherent(&ha->pdev->dev, stats_size, ql_iscsi_stats,
1841 iscsi_stats_dma);
1842 exit_get_stats:
1843 return;
1844 }
1845
1846 static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc)
1847 {
1848 struct iscsi_cls_session *session;
1849 struct iscsi_session *sess;
1850 unsigned long flags;
1851 enum blk_eh_timer_return ret = BLK_EH_DONE;
1852
1853 session = starget_to_session(scsi_target(sc->device));
1854 sess = session->dd_data;
1855
1856 spin_lock_irqsave(&session->lock, flags);
1857 if (session->state == ISCSI_SESSION_FAILED)
1858 ret = BLK_EH_RESET_TIMER;
1859 spin_unlock_irqrestore(&session->lock, flags);
1860
1861 return ret;
1862 }
1863
1864 static void qla4xxx_set_port_speed(struct Scsi_Host *shost)
1865 {
1866 struct scsi_qla_host *ha = to_qla_host(shost);
1867 struct iscsi_cls_host *ihost = shost->shost_data;
1868 uint32_t speed = ISCSI_PORT_SPEED_UNKNOWN;
1869
1870 qla4xxx_get_firmware_state(ha);
1871
1872 switch (ha->addl_fw_state & 0x0F00) {
1873 case FW_ADDSTATE_LINK_SPEED_10MBPS:
1874 speed = ISCSI_PORT_SPEED_10MBPS;
1875 break;
1876 case FW_ADDSTATE_LINK_SPEED_100MBPS:
1877 speed = ISCSI_PORT_SPEED_100MBPS;
1878 break;
1879 case FW_ADDSTATE_LINK_SPEED_1GBPS:
1880 speed = ISCSI_PORT_SPEED_1GBPS;
1881 break;
1882 case FW_ADDSTATE_LINK_SPEED_10GBPS:
1883 speed = ISCSI_PORT_SPEED_10GBPS;
1884 break;
1885 }
1886 ihost->port_speed = speed;
1887 }
1888
1889 static void qla4xxx_set_port_state(struct Scsi_Host *shost)
1890 {
1891 struct scsi_qla_host *ha = to_qla_host(shost);
1892 struct iscsi_cls_host *ihost = shost->shost_data;
1893 uint32_t state = ISCSI_PORT_STATE_DOWN;
1894
1895 if (test_bit(AF_LINK_UP, &ha->flags))
1896 state = ISCSI_PORT_STATE_UP;
1897
1898 ihost->port_state = state;
1899 }
1900
1901 static int qla4xxx_host_get_param(struct Scsi_Host *shost,
1902 enum iscsi_host_param param, char *buf)
1903 {
1904 struct scsi_qla_host *ha = to_qla_host(shost);
1905 int len;
1906
1907 switch (param) {
1908 case ISCSI_HOST_PARAM_HWADDRESS:
1909 len = sysfs_format_mac(buf, ha->my_mac, MAC_ADDR_LEN);
1910 break;
1911 case ISCSI_HOST_PARAM_IPADDRESS:
1912 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address);
1913 break;
1914 case ISCSI_HOST_PARAM_INITIATOR_NAME:
1915 len = sprintf(buf, "%s\n", ha->name_string);
1916 break;
1917 case ISCSI_HOST_PARAM_PORT_STATE:
1918 qla4xxx_set_port_state(shost);
1919 len = sprintf(buf, "%s\n", iscsi_get_port_state_name(shost));
1920 break;
1921 case ISCSI_HOST_PARAM_PORT_SPEED:
1922 qla4xxx_set_port_speed(shost);
1923 len = sprintf(buf, "%s\n", iscsi_get_port_speed_name(shost));
1924 break;
1925 default:
1926 return -ENOSYS;
1927 }
1928
1929 return len;
1930 }
1931
1932 static void qla4xxx_create_ipv4_iface(struct scsi_qla_host *ha)
1933 {
1934 if (ha->iface_ipv4)
1935 return;
1936
1937 /* IPv4 */
1938 ha->iface_ipv4 = iscsi_create_iface(ha->host,
1939 &qla4xxx_iscsi_transport,
1940 ISCSI_IFACE_TYPE_IPV4, 0, 0);
1941 if (!ha->iface_ipv4)
1942 ql4_printk(KERN_ERR, ha, "Could not create IPv4 iSCSI "
1943 "iface0.\n");
1944 }
1945
1946 static void qla4xxx_create_ipv6_iface(struct scsi_qla_host *ha)
1947 {
1948 if (!ha->iface_ipv6_0)
1949 /* IPv6 iface-0 */
1950 ha->iface_ipv6_0 = iscsi_create_iface(ha->host,
1951 &qla4xxx_iscsi_transport,
1952 ISCSI_IFACE_TYPE_IPV6, 0,
1953 0);
1954 if (!ha->iface_ipv6_0)
1955 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI "
1956 "iface0.\n");
1957
1958 if (!ha->iface_ipv6_1)
1959 /* IPv6 iface-1 */
1960 ha->iface_ipv6_1 = iscsi_create_iface(ha->host,
1961 &qla4xxx_iscsi_transport,
1962 ISCSI_IFACE_TYPE_IPV6, 1,
1963 0);
1964 if (!ha->iface_ipv6_1)
1965 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI "
1966 "iface1.\n");
1967 }
1968
1969 static void qla4xxx_create_ifaces(struct scsi_qla_host *ha)
1970 {
1971 if (ha->ip_config.ipv4_options & IPOPT_IPV4_PROTOCOL_ENABLE)
1972 qla4xxx_create_ipv4_iface(ha);
1973
1974 if (ha->ip_config.ipv6_options & IPV6_OPT_IPV6_PROTOCOL_ENABLE)
1975 qla4xxx_create_ipv6_iface(ha);
1976 }
1977
1978 static void qla4xxx_destroy_ipv4_iface(struct scsi_qla_host *ha)
1979 {
1980 if (ha->iface_ipv4) {
1981 iscsi_destroy_iface(ha->iface_ipv4);
1982 ha->iface_ipv4 = NULL;
1983 }
1984 }
1985
1986 static void qla4xxx_destroy_ipv6_iface(struct scsi_qla_host *ha)
1987 {
1988 if (ha->iface_ipv6_0) {
1989 iscsi_destroy_iface(ha->iface_ipv6_0);
1990 ha->iface_ipv6_0 = NULL;
1991 }
1992 if (ha->iface_ipv6_1) {
1993 iscsi_destroy_iface(ha->iface_ipv6_1);
1994 ha->iface_ipv6_1 = NULL;
1995 }
1996 }
1997
1998 static void qla4xxx_destroy_ifaces(struct scsi_qla_host *ha)
1999 {
2000 qla4xxx_destroy_ipv4_iface(ha);
2001 qla4xxx_destroy_ipv6_iface(ha);
2002 }
2003
2004 static void qla4xxx_set_ipv6(struct scsi_qla_host *ha,
2005 struct iscsi_iface_param_info *iface_param,
2006 struct addr_ctrl_blk *init_fw_cb)
2007 {
2008 /*
2009 * iface_num 0 is valid for IPv6 Addr, linklocal, router, autocfg.
2010 * iface_num 1 is valid only for IPv6 Addr.
2011 */
2012 switch (iface_param->param) {
2013 case ISCSI_NET_PARAM_IPV6_ADDR:
2014 if (iface_param->iface_num & 0x1)
2015 /* IPv6 Addr 1 */
2016 memcpy(init_fw_cb->ipv6_addr1, iface_param->value,
2017 sizeof(init_fw_cb->ipv6_addr1));
2018 else
2019 /* IPv6 Addr 0 */
2020 memcpy(init_fw_cb->ipv6_addr0, iface_param->value,
2021 sizeof(init_fw_cb->ipv6_addr0));
2022 break;
2023 case ISCSI_NET_PARAM_IPV6_LINKLOCAL:
2024 if (iface_param->iface_num & 0x1)
2025 break;
2026 memcpy(init_fw_cb->ipv6_if_id, &iface_param->value[8],
2027 sizeof(init_fw_cb->ipv6_if_id));
2028 break;
2029 case ISCSI_NET_PARAM_IPV6_ROUTER:
2030 if (iface_param->iface_num & 0x1)
2031 break;
2032 memcpy(init_fw_cb->ipv6_dflt_rtr_addr, iface_param->value,
2033 sizeof(init_fw_cb->ipv6_dflt_rtr_addr));
2034 break;
2035 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG:
2036 /* Autocfg applies to even interface */
2037 if (iface_param->iface_num & 0x1)
2038 break;
2039
2040 if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_DISABLE)
2041 init_fw_cb->ipv6_addtl_opts &=
2042 cpu_to_le16(
2043 ~IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE);
2044 else if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_ND_ENABLE)
2045 init_fw_cb->ipv6_addtl_opts |=
2046 cpu_to_le16(
2047 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE);
2048 else
2049 ql4_printk(KERN_ERR, ha,
2050 "Invalid autocfg setting for IPv6 addr\n");
2051 break;
2052 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG:
2053 /* Autocfg applies to even interface */
2054 if (iface_param->iface_num & 0x1)
2055 break;
2056
2057 if (iface_param->value[0] ==
2058 ISCSI_IPV6_LINKLOCAL_AUTOCFG_ENABLE)
2059 init_fw_cb->ipv6_addtl_opts |= cpu_to_le16(
2060 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR);
2061 else if (iface_param->value[0] ==
2062 ISCSI_IPV6_LINKLOCAL_AUTOCFG_DISABLE)
2063 init_fw_cb->ipv6_addtl_opts &= cpu_to_le16(
2064 ~IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR);
2065 else
2066 ql4_printk(KERN_ERR, ha,
2067 "Invalid autocfg setting for IPv6 linklocal addr\n");
2068 break;
2069 case ISCSI_NET_PARAM_IPV6_ROUTER_AUTOCFG:
2070 /* Autocfg applies to even interface */
2071 if (iface_param->iface_num & 0x1)
2072 break;
2073
2074 if (iface_param->value[0] == ISCSI_IPV6_ROUTER_AUTOCFG_ENABLE)
2075 memset(init_fw_cb->ipv6_dflt_rtr_addr, 0,
2076 sizeof(init_fw_cb->ipv6_dflt_rtr_addr));
2077 break;
2078 case ISCSI_NET_PARAM_IFACE_ENABLE:
2079 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) {
2080 init_fw_cb->ipv6_opts |=
2081 cpu_to_le16(IPV6_OPT_IPV6_PROTOCOL_ENABLE);
2082 qla4xxx_create_ipv6_iface(ha);
2083 } else {
2084 init_fw_cb->ipv6_opts &=
2085 cpu_to_le16(~IPV6_OPT_IPV6_PROTOCOL_ENABLE &
2086 0xFFFF);
2087 qla4xxx_destroy_ipv6_iface(ha);
2088 }
2089 break;
2090 case ISCSI_NET_PARAM_VLAN_TAG:
2091 if (iface_param->len != sizeof(init_fw_cb->ipv6_vlan_tag))
2092 break;
2093 init_fw_cb->ipv6_vlan_tag =
2094 cpu_to_be16(*(uint16_t *)iface_param->value);
2095 break;
2096 case ISCSI_NET_PARAM_VLAN_ENABLED:
2097 if (iface_param->value[0] == ISCSI_VLAN_ENABLE)
2098 init_fw_cb->ipv6_opts |=
2099 cpu_to_le16(IPV6_OPT_VLAN_TAGGING_ENABLE);
2100 else
2101 init_fw_cb->ipv6_opts &=
2102 cpu_to_le16(~IPV6_OPT_VLAN_TAGGING_ENABLE);
2103 break;
2104 case ISCSI_NET_PARAM_MTU:
2105 init_fw_cb->eth_mtu_size =
2106 cpu_to_le16(*(uint16_t *)iface_param->value);
2107 break;
2108 case ISCSI_NET_PARAM_PORT:
2109 /* Autocfg applies to even interface */
2110 if (iface_param->iface_num & 0x1)
2111 break;
2112
2113 init_fw_cb->ipv6_port =
2114 cpu_to_le16(*(uint16_t *)iface_param->value);
2115 break;
2116 case ISCSI_NET_PARAM_DELAYED_ACK_EN:
2117 if (iface_param->iface_num & 0x1)
2118 break;
2119 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2120 init_fw_cb->ipv6_tcp_opts |=
2121 cpu_to_le16(IPV6_TCPOPT_DELAYED_ACK_DISABLE);
2122 else
2123 init_fw_cb->ipv6_tcp_opts &=
2124 cpu_to_le16(~IPV6_TCPOPT_DELAYED_ACK_DISABLE &
2125 0xFFFF);
2126 break;
2127 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE:
2128 if (iface_param->iface_num & 0x1)
2129 break;
2130 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2131 init_fw_cb->ipv6_tcp_opts |=
2132 cpu_to_le16(IPV6_TCPOPT_NAGLE_ALGO_DISABLE);
2133 else
2134 init_fw_cb->ipv6_tcp_opts &=
2135 cpu_to_le16(~IPV6_TCPOPT_NAGLE_ALGO_DISABLE);
2136 break;
2137 case ISCSI_NET_PARAM_TCP_WSF_DISABLE:
2138 if (iface_param->iface_num & 0x1)
2139 break;
2140 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2141 init_fw_cb->ipv6_tcp_opts |=
2142 cpu_to_le16(IPV6_TCPOPT_WINDOW_SCALE_DISABLE);
2143 else
2144 init_fw_cb->ipv6_tcp_opts &=
2145 cpu_to_le16(~IPV6_TCPOPT_WINDOW_SCALE_DISABLE);
2146 break;
2147 case ISCSI_NET_PARAM_TCP_WSF:
2148 if (iface_param->iface_num & 0x1)
2149 break;
2150 init_fw_cb->ipv6_tcp_wsf = iface_param->value[0];
2151 break;
2152 case ISCSI_NET_PARAM_TCP_TIMER_SCALE:
2153 if (iface_param->iface_num & 0x1)
2154 break;
2155 init_fw_cb->ipv6_tcp_opts &=
2156 cpu_to_le16(~IPV6_TCPOPT_TIMER_SCALE);
2157 init_fw_cb->ipv6_tcp_opts |=
2158 cpu_to_le16((iface_param->value[0] << 1) &
2159 IPV6_TCPOPT_TIMER_SCALE);
2160 break;
2161 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN:
2162 if (iface_param->iface_num & 0x1)
2163 break;
2164 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2165 init_fw_cb->ipv6_tcp_opts |=
2166 cpu_to_le16(IPV6_TCPOPT_TIMESTAMP_EN);
2167 else
2168 init_fw_cb->ipv6_tcp_opts &=
2169 cpu_to_le16(~IPV6_TCPOPT_TIMESTAMP_EN);
2170 break;
2171 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN:
2172 if (iface_param->iface_num & 0x1)
2173 break;
2174 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2175 init_fw_cb->ipv6_opts |=
2176 cpu_to_le16(IPV6_OPT_GRAT_NEIGHBOR_ADV_EN);
2177 else
2178 init_fw_cb->ipv6_opts &=
2179 cpu_to_le16(~IPV6_OPT_GRAT_NEIGHBOR_ADV_EN);
2180 break;
2181 case ISCSI_NET_PARAM_REDIRECT_EN:
2182 if (iface_param->iface_num & 0x1)
2183 break;
2184 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2185 init_fw_cb->ipv6_opts |=
2186 cpu_to_le16(IPV6_OPT_REDIRECT_EN);
2187 else
2188 init_fw_cb->ipv6_opts &=
2189 cpu_to_le16(~IPV6_OPT_REDIRECT_EN);
2190 break;
2191 case ISCSI_NET_PARAM_IPV6_MLD_EN:
2192 if (iface_param->iface_num & 0x1)
2193 break;
2194 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2195 init_fw_cb->ipv6_addtl_opts |=
2196 cpu_to_le16(IPV6_ADDOPT_MLD_EN);
2197 else
2198 init_fw_cb->ipv6_addtl_opts &=
2199 cpu_to_le16(~IPV6_ADDOPT_MLD_EN);
2200 break;
2201 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL:
2202 if (iface_param->iface_num & 0x1)
2203 break;
2204 init_fw_cb->ipv6_flow_lbl =
2205 cpu_to_le16(*(uint16_t *)iface_param->value);
2206 break;
2207 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS:
2208 if (iface_param->iface_num & 0x1)
2209 break;
2210 init_fw_cb->ipv6_traffic_class = iface_param->value[0];
2211 break;
2212 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT:
2213 if (iface_param->iface_num & 0x1)
2214 break;
2215 init_fw_cb->ipv6_hop_limit = iface_param->value[0];
2216 break;
2217 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO:
2218 if (iface_param->iface_num & 0x1)
2219 break;
2220 init_fw_cb->ipv6_nd_reach_time =
2221 cpu_to_le32(*(uint32_t *)iface_param->value);
2222 break;
2223 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME:
2224 if (iface_param->iface_num & 0x1)
2225 break;
2226 init_fw_cb->ipv6_nd_rexmit_timer =
2227 cpu_to_le32(*(uint32_t *)iface_param->value);
2228 break;
2229 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO:
2230 if (iface_param->iface_num & 0x1)
2231 break;
2232 init_fw_cb->ipv6_nd_stale_timeout =
2233 cpu_to_le32(*(uint32_t *)iface_param->value);
2234 break;
2235 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT:
2236 if (iface_param->iface_num & 0x1)
2237 break;
2238 init_fw_cb->ipv6_dup_addr_detect_count = iface_param->value[0];
2239 break;
2240 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU:
2241 if (iface_param->iface_num & 0x1)
2242 break;
2243 init_fw_cb->ipv6_gw_advrt_mtu =
2244 cpu_to_le32(*(uint32_t *)iface_param->value);
2245 break;
2246 default:
2247 ql4_printk(KERN_ERR, ha, "Unknown IPv6 param = %d\n",
2248 iface_param->param);
2249 break;
2250 }
2251 }
2252
2253 static void qla4xxx_set_ipv4(struct scsi_qla_host *ha,
2254 struct iscsi_iface_param_info *iface_param,
2255 struct addr_ctrl_blk *init_fw_cb)
2256 {
2257 switch (iface_param->param) {
2258 case ISCSI_NET_PARAM_IPV4_ADDR:
2259 memcpy(init_fw_cb->ipv4_addr, iface_param->value,
2260 sizeof(init_fw_cb->ipv4_addr));
2261 break;
2262 case ISCSI_NET_PARAM_IPV4_SUBNET:
2263 memcpy(init_fw_cb->ipv4_subnet, iface_param->value,
2264 sizeof(init_fw_cb->ipv4_subnet));
2265 break;
2266 case ISCSI_NET_PARAM_IPV4_GW:
2267 memcpy(init_fw_cb->ipv4_gw_addr, iface_param->value,
2268 sizeof(init_fw_cb->ipv4_gw_addr));
2269 break;
2270 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
2271 if (iface_param->value[0] == ISCSI_BOOTPROTO_DHCP)
2272 init_fw_cb->ipv4_tcp_opts |=
2273 cpu_to_le16(TCPOPT_DHCP_ENABLE);
2274 else if (iface_param->value[0] == ISCSI_BOOTPROTO_STATIC)
2275 init_fw_cb->ipv4_tcp_opts &=
2276 cpu_to_le16(~TCPOPT_DHCP_ENABLE);
2277 else
2278 ql4_printk(KERN_ERR, ha, "Invalid IPv4 bootproto\n");
2279 break;
2280 case ISCSI_NET_PARAM_IFACE_ENABLE:
2281 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) {
2282 init_fw_cb->ipv4_ip_opts |=
2283 cpu_to_le16(IPOPT_IPV4_PROTOCOL_ENABLE);
2284 qla4xxx_create_ipv4_iface(ha);
2285 } else {
2286 init_fw_cb->ipv4_ip_opts &=
2287 cpu_to_le16(~IPOPT_IPV4_PROTOCOL_ENABLE &
2288 0xFFFF);
2289 qla4xxx_destroy_ipv4_iface(ha);
2290 }
2291 break;
2292 case ISCSI_NET_PARAM_VLAN_TAG:
2293 if (iface_param->len != sizeof(init_fw_cb->ipv4_vlan_tag))
2294 break;
2295 init_fw_cb->ipv4_vlan_tag =
2296 cpu_to_be16(*(uint16_t *)iface_param->value);
2297 break;
2298 case ISCSI_NET_PARAM_VLAN_ENABLED:
2299 if (iface_param->value[0] == ISCSI_VLAN_ENABLE)
2300 init_fw_cb->ipv4_ip_opts |=
2301 cpu_to_le16(IPOPT_VLAN_TAGGING_ENABLE);
2302 else
2303 init_fw_cb->ipv4_ip_opts &=
2304 cpu_to_le16(~IPOPT_VLAN_TAGGING_ENABLE);
2305 break;
2306 case ISCSI_NET_PARAM_MTU:
2307 init_fw_cb->eth_mtu_size =
2308 cpu_to_le16(*(uint16_t *)iface_param->value);
2309 break;
2310 case ISCSI_NET_PARAM_PORT:
2311 init_fw_cb->ipv4_port =
2312 cpu_to_le16(*(uint16_t *)iface_param->value);
2313 break;
2314 case ISCSI_NET_PARAM_DELAYED_ACK_EN:
2315 if (iface_param->iface_num & 0x1)
2316 break;
2317 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2318 init_fw_cb->ipv4_tcp_opts |=
2319 cpu_to_le16(TCPOPT_DELAYED_ACK_DISABLE);
2320 else
2321 init_fw_cb->ipv4_tcp_opts &=
2322 cpu_to_le16(~TCPOPT_DELAYED_ACK_DISABLE &
2323 0xFFFF);
2324 break;
2325 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE:
2326 if (iface_param->iface_num & 0x1)
2327 break;
2328 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2329 init_fw_cb->ipv4_tcp_opts |=
2330 cpu_to_le16(TCPOPT_NAGLE_ALGO_DISABLE);
2331 else
2332 init_fw_cb->ipv4_tcp_opts &=
2333 cpu_to_le16(~TCPOPT_NAGLE_ALGO_DISABLE);
2334 break;
2335 case ISCSI_NET_PARAM_TCP_WSF_DISABLE:
2336 if (iface_param->iface_num & 0x1)
2337 break;
2338 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2339 init_fw_cb->ipv4_tcp_opts |=
2340 cpu_to_le16(TCPOPT_WINDOW_SCALE_DISABLE);
2341 else
2342 init_fw_cb->ipv4_tcp_opts &=
2343 cpu_to_le16(~TCPOPT_WINDOW_SCALE_DISABLE);
2344 break;
2345 case ISCSI_NET_PARAM_TCP_WSF:
2346 if (iface_param->iface_num & 0x1)
2347 break;
2348 init_fw_cb->ipv4_tcp_wsf = iface_param->value[0];
2349 break;
2350 case ISCSI_NET_PARAM_TCP_TIMER_SCALE:
2351 if (iface_param->iface_num & 0x1)
2352 break;
2353 init_fw_cb->ipv4_tcp_opts &= cpu_to_le16(~TCPOPT_TIMER_SCALE);
2354 init_fw_cb->ipv4_tcp_opts |=
2355 cpu_to_le16((iface_param->value[0] << 1) &
2356 TCPOPT_TIMER_SCALE);
2357 break;
2358 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN:
2359 if (iface_param->iface_num & 0x1)
2360 break;
2361 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2362 init_fw_cb->ipv4_tcp_opts |=
2363 cpu_to_le16(TCPOPT_TIMESTAMP_ENABLE);
2364 else
2365 init_fw_cb->ipv4_tcp_opts &=
2366 cpu_to_le16(~TCPOPT_TIMESTAMP_ENABLE);
2367 break;
2368 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN:
2369 if (iface_param->iface_num & 0x1)
2370 break;
2371 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2372 init_fw_cb->ipv4_tcp_opts |=
2373 cpu_to_le16(TCPOPT_DNS_SERVER_IP_EN);
2374 else
2375 init_fw_cb->ipv4_tcp_opts &=
2376 cpu_to_le16(~TCPOPT_DNS_SERVER_IP_EN);
2377 break;
2378 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN:
2379 if (iface_param->iface_num & 0x1)
2380 break;
2381 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2382 init_fw_cb->ipv4_tcp_opts |=
2383 cpu_to_le16(TCPOPT_SLP_DA_INFO_EN);
2384 else
2385 init_fw_cb->ipv4_tcp_opts &=
2386 cpu_to_le16(~TCPOPT_SLP_DA_INFO_EN);
2387 break;
2388 case ISCSI_NET_PARAM_IPV4_TOS_EN:
2389 if (iface_param->iface_num & 0x1)
2390 break;
2391 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2392 init_fw_cb->ipv4_ip_opts |=
2393 cpu_to_le16(IPOPT_IPV4_TOS_EN);
2394 else
2395 init_fw_cb->ipv4_ip_opts &=
2396 cpu_to_le16(~IPOPT_IPV4_TOS_EN);
2397 break;
2398 case ISCSI_NET_PARAM_IPV4_TOS:
2399 if (iface_param->iface_num & 0x1)
2400 break;
2401 init_fw_cb->ipv4_tos = iface_param->value[0];
2402 break;
2403 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN:
2404 if (iface_param->iface_num & 0x1)
2405 break;
2406 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2407 init_fw_cb->ipv4_ip_opts |=
2408 cpu_to_le16(IPOPT_GRAT_ARP_EN);
2409 else
2410 init_fw_cb->ipv4_ip_opts &=
2411 cpu_to_le16(~IPOPT_GRAT_ARP_EN);
2412 break;
2413 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN:
2414 if (iface_param->iface_num & 0x1)
2415 break;
2416 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2417 init_fw_cb->ipv4_ip_opts |=
2418 cpu_to_le16(IPOPT_ALT_CID_EN);
2419 else
2420 init_fw_cb->ipv4_ip_opts &=
2421 cpu_to_le16(~IPOPT_ALT_CID_EN);
2422 break;
2423 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID:
2424 if (iface_param->iface_num & 0x1)
2425 break;
2426 memcpy(init_fw_cb->ipv4_dhcp_alt_cid, iface_param->value,
2427 (sizeof(init_fw_cb->ipv4_dhcp_alt_cid) - 1));
2428 init_fw_cb->ipv4_dhcp_alt_cid_len =
2429 strlen(init_fw_cb->ipv4_dhcp_alt_cid);
2430 break;
2431 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN:
2432 if (iface_param->iface_num & 0x1)
2433 break;
2434 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2435 init_fw_cb->ipv4_ip_opts |=
2436 cpu_to_le16(IPOPT_REQ_VID_EN);
2437 else
2438 init_fw_cb->ipv4_ip_opts &=
2439 cpu_to_le16(~IPOPT_REQ_VID_EN);
2440 break;
2441 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN:
2442 if (iface_param->iface_num & 0x1)
2443 break;
2444 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2445 init_fw_cb->ipv4_ip_opts |=
2446 cpu_to_le16(IPOPT_USE_VID_EN);
2447 else
2448 init_fw_cb->ipv4_ip_opts &=
2449 cpu_to_le16(~IPOPT_USE_VID_EN);
2450 break;
2451 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID:
2452 if (iface_param->iface_num & 0x1)
2453 break;
2454 memcpy(init_fw_cb->ipv4_dhcp_vid, iface_param->value,
2455 (sizeof(init_fw_cb->ipv4_dhcp_vid) - 1));
2456 init_fw_cb->ipv4_dhcp_vid_len =
2457 strlen(init_fw_cb->ipv4_dhcp_vid);
2458 break;
2459 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN:
2460 if (iface_param->iface_num & 0x1)
2461 break;
2462 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2463 init_fw_cb->ipv4_ip_opts |=
2464 cpu_to_le16(IPOPT_LEARN_IQN_EN);
2465 else
2466 init_fw_cb->ipv4_ip_opts &=
2467 cpu_to_le16(~IPOPT_LEARN_IQN_EN);
2468 break;
2469 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE:
2470 if (iface_param->iface_num & 0x1)
2471 break;
2472 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2473 init_fw_cb->ipv4_ip_opts |=
2474 cpu_to_le16(IPOPT_FRAGMENTATION_DISABLE);
2475 else
2476 init_fw_cb->ipv4_ip_opts &=
2477 cpu_to_le16(~IPOPT_FRAGMENTATION_DISABLE);
2478 break;
2479 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN:
2480 if (iface_param->iface_num & 0x1)
2481 break;
2482 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2483 init_fw_cb->ipv4_ip_opts |=
2484 cpu_to_le16(IPOPT_IN_FORWARD_EN);
2485 else
2486 init_fw_cb->ipv4_ip_opts &=
2487 cpu_to_le16(~IPOPT_IN_FORWARD_EN);
2488 break;
2489 case ISCSI_NET_PARAM_REDIRECT_EN:
2490 if (iface_param->iface_num & 0x1)
2491 break;
2492 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2493 init_fw_cb->ipv4_ip_opts |=
2494 cpu_to_le16(IPOPT_ARP_REDIRECT_EN);
2495 else
2496 init_fw_cb->ipv4_ip_opts &=
2497 cpu_to_le16(~IPOPT_ARP_REDIRECT_EN);
2498 break;
2499 case ISCSI_NET_PARAM_IPV4_TTL:
2500 if (iface_param->iface_num & 0x1)
2501 break;
2502 init_fw_cb->ipv4_ttl = iface_param->value[0];
2503 break;
2504 default:
2505 ql4_printk(KERN_ERR, ha, "Unknown IPv4 param = %d\n",
2506 iface_param->param);
2507 break;
2508 }
2509 }
2510
2511 static void qla4xxx_set_iscsi_param(struct scsi_qla_host *ha,
2512 struct iscsi_iface_param_info *iface_param,
2513 struct addr_ctrl_blk *init_fw_cb)
2514 {
2515 switch (iface_param->param) {
2516 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO:
2517 if (iface_param->iface_num & 0x1)
2518 break;
2519 init_fw_cb->def_timeout =
2520 cpu_to_le16(*(uint16_t *)iface_param->value);
2521 break;
2522 case ISCSI_IFACE_PARAM_HDRDGST_EN:
2523 if (iface_param->iface_num & 0x1)
2524 break;
2525 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2526 init_fw_cb->iscsi_opts |=
2527 cpu_to_le16(ISCSIOPTS_HEADER_DIGEST_EN);
2528 else
2529 init_fw_cb->iscsi_opts &=
2530 cpu_to_le16(~ISCSIOPTS_HEADER_DIGEST_EN);
2531 break;
2532 case ISCSI_IFACE_PARAM_DATADGST_EN:
2533 if (iface_param->iface_num & 0x1)
2534 break;
2535 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2536 init_fw_cb->iscsi_opts |=
2537 cpu_to_le16(ISCSIOPTS_DATA_DIGEST_EN);
2538 else
2539 init_fw_cb->iscsi_opts &=
2540 cpu_to_le16(~ISCSIOPTS_DATA_DIGEST_EN);
2541 break;
2542 case ISCSI_IFACE_PARAM_IMM_DATA_EN:
2543 if (iface_param->iface_num & 0x1)
2544 break;
2545 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2546 init_fw_cb->iscsi_opts |=
2547 cpu_to_le16(ISCSIOPTS_IMMEDIATE_DATA_EN);
2548 else
2549 init_fw_cb->iscsi_opts &=
2550 cpu_to_le16(~ISCSIOPTS_IMMEDIATE_DATA_EN);
2551 break;
2552 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN:
2553 if (iface_param->iface_num & 0x1)
2554 break;
2555 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2556 init_fw_cb->iscsi_opts |=
2557 cpu_to_le16(ISCSIOPTS_INITIAL_R2T_EN);
2558 else
2559 init_fw_cb->iscsi_opts &=
2560 cpu_to_le16(~ISCSIOPTS_INITIAL_R2T_EN);
2561 break;
2562 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN:
2563 if (iface_param->iface_num & 0x1)
2564 break;
2565 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2566 init_fw_cb->iscsi_opts |=
2567 cpu_to_le16(ISCSIOPTS_DATA_SEQ_INORDER_EN);
2568 else
2569 init_fw_cb->iscsi_opts &=
2570 cpu_to_le16(~ISCSIOPTS_DATA_SEQ_INORDER_EN);
2571 break;
2572 case ISCSI_IFACE_PARAM_PDU_INORDER_EN:
2573 if (iface_param->iface_num & 0x1)
2574 break;
2575 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2576 init_fw_cb->iscsi_opts |=
2577 cpu_to_le16(ISCSIOPTS_DATA_PDU_INORDER_EN);
2578 else
2579 init_fw_cb->iscsi_opts &=
2580 cpu_to_le16(~ISCSIOPTS_DATA_PDU_INORDER_EN);
2581 break;
2582 case ISCSI_IFACE_PARAM_ERL:
2583 if (iface_param->iface_num & 0x1)
2584 break;
2585 init_fw_cb->iscsi_opts &= cpu_to_le16(~ISCSIOPTS_ERL);
2586 init_fw_cb->iscsi_opts |= cpu_to_le16(iface_param->value[0] &
2587 ISCSIOPTS_ERL);
2588 break;
2589 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH:
2590 if (iface_param->iface_num & 0x1)
2591 break;
2592 init_fw_cb->iscsi_max_pdu_size =
2593 cpu_to_le32(*(uint32_t *)iface_param->value) /
2594 BYTE_UNITS;
2595 break;
2596 case ISCSI_IFACE_PARAM_FIRST_BURST:
2597 if (iface_param->iface_num & 0x1)
2598 break;
2599 init_fw_cb->iscsi_fburst_len =
2600 cpu_to_le32(*(uint32_t *)iface_param->value) /
2601 BYTE_UNITS;
2602 break;
2603 case ISCSI_IFACE_PARAM_MAX_R2T:
2604 if (iface_param->iface_num & 0x1)
2605 break;
2606 init_fw_cb->iscsi_max_outstnd_r2t =
2607 cpu_to_le16(*(uint16_t *)iface_param->value);
2608 break;
2609 case ISCSI_IFACE_PARAM_MAX_BURST:
2610 if (iface_param->iface_num & 0x1)
2611 break;
2612 init_fw_cb->iscsi_max_burst_len =
2613 cpu_to_le32(*(uint32_t *)iface_param->value) /
2614 BYTE_UNITS;
2615 break;
2616 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN:
2617 if (iface_param->iface_num & 0x1)
2618 break;
2619 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2620 init_fw_cb->iscsi_opts |=
2621 cpu_to_le16(ISCSIOPTS_CHAP_AUTH_EN);
2622 else
2623 init_fw_cb->iscsi_opts &=
2624 cpu_to_le16(~ISCSIOPTS_CHAP_AUTH_EN);
2625 break;
2626 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN:
2627 if (iface_param->iface_num & 0x1)
2628 break;
2629 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2630 init_fw_cb->iscsi_opts |=
2631 cpu_to_le16(ISCSIOPTS_BIDI_CHAP_EN);
2632 else
2633 init_fw_cb->iscsi_opts &=
2634 cpu_to_le16(~ISCSIOPTS_BIDI_CHAP_EN);
2635 break;
2636 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL:
2637 if (iface_param->iface_num & 0x1)
2638 break;
2639 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2640 init_fw_cb->iscsi_opts |=
2641 cpu_to_le16(ISCSIOPTS_DISCOVERY_AUTH_EN);
2642 else
2643 init_fw_cb->iscsi_opts &=
2644 cpu_to_le16(~ISCSIOPTS_DISCOVERY_AUTH_EN);
2645 break;
2646 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN:
2647 if (iface_param->iface_num & 0x1)
2648 break;
2649 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2650 init_fw_cb->iscsi_opts |=
2651 cpu_to_le16(ISCSIOPTS_DISCOVERY_LOGOUT_EN);
2652 else
2653 init_fw_cb->iscsi_opts &=
2654 cpu_to_le16(~ISCSIOPTS_DISCOVERY_LOGOUT_EN);
2655 break;
2656 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN:
2657 if (iface_param->iface_num & 0x1)
2658 break;
2659 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2660 init_fw_cb->iscsi_opts |=
2661 cpu_to_le16(ISCSIOPTS_STRICT_LOGIN_COMP_EN);
2662 else
2663 init_fw_cb->iscsi_opts &=
2664 cpu_to_le16(~ISCSIOPTS_STRICT_LOGIN_COMP_EN);
2665 break;
2666 default:
2667 ql4_printk(KERN_ERR, ha, "Unknown iscsi param = %d\n",
2668 iface_param->param);
2669 break;
2670 }
2671 }
2672
2673 static void
2674 qla4xxx_initcb_to_acb(struct addr_ctrl_blk *init_fw_cb)
2675 {
2676 struct addr_ctrl_blk_def *acb;
2677 acb = (struct addr_ctrl_blk_def *)init_fw_cb;
2678 memset(acb->reserved1, 0, sizeof(acb->reserved1));
2679 memset(acb->reserved2, 0, sizeof(acb->reserved2));
2680 memset(acb->reserved3, 0, sizeof(acb->reserved3));
2681 memset(acb->reserved4, 0, sizeof(acb->reserved4));
2682 memset(acb->reserved5, 0, sizeof(acb->reserved5));
2683 memset(acb->reserved6, 0, sizeof(acb->reserved6));
2684 memset(acb->reserved7, 0, sizeof(acb->reserved7));
2685 memset(acb->reserved8, 0, sizeof(acb->reserved8));
2686 memset(acb->reserved9, 0, sizeof(acb->reserved9));
2687 memset(acb->reserved10, 0, sizeof(acb->reserved10));
2688 memset(acb->reserved11, 0, sizeof(acb->reserved11));
2689 memset(acb->reserved12, 0, sizeof(acb->reserved12));
2690 memset(acb->reserved13, 0, sizeof(acb->reserved13));
2691 memset(acb->reserved14, 0, sizeof(acb->reserved14));
2692 memset(acb->reserved15, 0, sizeof(acb->reserved15));
2693 }
2694
2695 static int
2696 qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data, uint32_t len)
2697 {
2698 struct scsi_qla_host *ha = to_qla_host(shost);
2699 int rval = 0;
2700 struct iscsi_iface_param_info *iface_param = NULL;
2701 struct addr_ctrl_blk *init_fw_cb = NULL;
2702 dma_addr_t init_fw_cb_dma;
2703 uint32_t mbox_cmd[MBOX_REG_COUNT];
2704 uint32_t mbox_sts[MBOX_REG_COUNT];
2705 uint32_t rem = len;
2706 struct nlattr *attr;
2707
2708 init_fw_cb = dma_zalloc_coherent(&ha->pdev->dev,
2709 sizeof(struct addr_ctrl_blk),
2710 &init_fw_cb_dma, GFP_KERNEL);
2711 if (!init_fw_cb) {
2712 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc init_cb\n",
2713 __func__);
2714 return -ENOMEM;
2715 }
2716
2717 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
2718 memset(&mbox_sts, 0, sizeof(mbox_sts));
2719
2720 if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma)) {
2721 ql4_printk(KERN_ERR, ha, "%s: get ifcb failed\n", __func__);
2722 rval = -EIO;
2723 goto exit_init_fw_cb;
2724 }
2725
2726 nla_for_each_attr(attr, data, len, rem) {
2727 iface_param = nla_data(attr);
2728
2729 if (iface_param->param_type == ISCSI_NET_PARAM) {
2730 switch (iface_param->iface_type) {
2731 case ISCSI_IFACE_TYPE_IPV4:
2732 switch (iface_param->iface_num) {
2733 case 0:
2734 qla4xxx_set_ipv4(ha, iface_param,
2735 init_fw_cb);
2736 break;
2737 default:
2738 /* Cannot have more than one IPv4 interface */
2739 ql4_printk(KERN_ERR, ha,
2740 "Invalid IPv4 iface number = %d\n",
2741 iface_param->iface_num);
2742 break;
2743 }
2744 break;
2745 case ISCSI_IFACE_TYPE_IPV6:
2746 switch (iface_param->iface_num) {
2747 case 0:
2748 case 1:
2749 qla4xxx_set_ipv6(ha, iface_param,
2750 init_fw_cb);
2751 break;
2752 default:
2753 /* Cannot have more than two IPv6 interface */
2754 ql4_printk(KERN_ERR, ha,
2755 "Invalid IPv6 iface number = %d\n",
2756 iface_param->iface_num);
2757 break;
2758 }
2759 break;
2760 default:
2761 ql4_printk(KERN_ERR, ha,
2762 "Invalid iface type\n");
2763 break;
2764 }
2765 } else if (iface_param->param_type == ISCSI_IFACE_PARAM) {
2766 qla4xxx_set_iscsi_param(ha, iface_param,
2767 init_fw_cb);
2768 } else {
2769 continue;
2770 }
2771 }
2772
2773 init_fw_cb->cookie = cpu_to_le32(0x11BEAD5A);
2774
2775 rval = qla4xxx_set_flash(ha, init_fw_cb_dma, FLASH_SEGMENT_IFCB,
2776 sizeof(struct addr_ctrl_blk),
2777 FLASH_OPT_RMW_COMMIT);
2778 if (rval != QLA_SUCCESS) {
2779 ql4_printk(KERN_ERR, ha, "%s: set flash mbx failed\n",
2780 __func__);
2781 rval = -EIO;
2782 goto exit_init_fw_cb;
2783 }
2784
2785 rval = qla4xxx_disable_acb(ha);
2786 if (rval != QLA_SUCCESS) {
2787 ql4_printk(KERN_ERR, ha, "%s: disable acb mbx failed\n",
2788 __func__);
2789 rval = -EIO;
2790 goto exit_init_fw_cb;
2791 }
2792
2793 wait_for_completion_timeout(&ha->disable_acb_comp,
2794 DISABLE_ACB_TOV * HZ);
2795
2796 qla4xxx_initcb_to_acb(init_fw_cb);
2797
2798 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma);
2799 if (rval != QLA_SUCCESS) {
2800 ql4_printk(KERN_ERR, ha, "%s: set acb mbx failed\n",
2801 __func__);
2802 rval = -EIO;
2803 goto exit_init_fw_cb;
2804 }
2805
2806 memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk));
2807 qla4xxx_update_local_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb,
2808 init_fw_cb_dma);
2809
2810 exit_init_fw_cb:
2811 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk),
2812 init_fw_cb, init_fw_cb_dma);
2813
2814 return rval;
2815 }
2816
2817 static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess,
2818 enum iscsi_param param, char *buf)
2819 {
2820 struct iscsi_session *sess = cls_sess->dd_data;
2821 struct ddb_entry *ddb_entry = sess->dd_data;
2822 struct scsi_qla_host *ha = ddb_entry->ha;
2823 struct iscsi_cls_conn *cls_conn = ddb_entry->conn;
2824 struct ql4_chap_table chap_tbl;
2825 int rval, len;
2826 uint16_t idx;
2827
2828 memset(&chap_tbl, 0, sizeof(chap_tbl));
2829 switch (param) {
2830 case ISCSI_PARAM_CHAP_IN_IDX:
2831 rval = qla4xxx_get_chap_index(ha, sess->username_in,
2832 sess->password_in, BIDI_CHAP,
2833 &idx);
2834 if (rval)
2835 len = sprintf(buf, "\n");
2836 else
2837 len = sprintf(buf, "%hu\n", idx);
2838 break;
2839 case ISCSI_PARAM_CHAP_OUT_IDX:
2840 if (ddb_entry->ddb_type == FLASH_DDB) {
2841 if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) {
2842 idx = ddb_entry->chap_tbl_idx;
2843 rval = QLA_SUCCESS;
2844 } else {
2845 rval = QLA_ERROR;
2846 }
2847 } else {
2848 rval = qla4xxx_get_chap_index(ha, sess->username,
2849 sess->password,
2850 LOCAL_CHAP, &idx);
2851 }
2852 if (rval)
2853 len = sprintf(buf, "\n");
2854 else
2855 len = sprintf(buf, "%hu\n", idx);
2856 break;
2857 case ISCSI_PARAM_USERNAME:
2858 case ISCSI_PARAM_PASSWORD:
2859 /* First, populate session username and password for FLASH DDB,
2860 * if not already done. This happens when session login fails
2861 * for a FLASH DDB.
2862 */
2863 if (ddb_entry->ddb_type == FLASH_DDB &&
2864 ddb_entry->chap_tbl_idx != INVALID_ENTRY &&
2865 !sess->username && !sess->password) {
2866 idx = ddb_entry->chap_tbl_idx;
2867 rval = qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name,
2868 chap_tbl.secret,
2869 idx);
2870 if (!rval) {
2871 iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME,
2872 (char *)chap_tbl.name,
2873 strlen((char *)chap_tbl.name));
2874 iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD,
2875 (char *)chap_tbl.secret,
2876 chap_tbl.secret_len);
2877 }
2878 }
2879 /* allow fall-through */
2880 default:
2881 return iscsi_session_get_param(cls_sess, param, buf);
2882 }
2883
2884 return len;
2885 }
2886
2887 static int qla4xxx_conn_get_param(struct iscsi_cls_conn *cls_conn,
2888 enum iscsi_param param, char *buf)
2889 {
2890 struct iscsi_conn *conn;
2891 struct qla_conn *qla_conn;
2892 struct sockaddr *dst_addr;
2893
2894 conn = cls_conn->dd_data;
2895 qla_conn = conn->dd_data;
2896 dst_addr = (struct sockaddr *)&qla_conn->qla_ep->dst_addr;
2897
2898 switch (param) {
2899 case ISCSI_PARAM_CONN_PORT:
2900 case ISCSI_PARAM_CONN_ADDRESS:
2901 return iscsi_conn_get_addr_param((struct sockaddr_storage *)
2902 dst_addr, param, buf);
2903 default:
2904 return iscsi_conn_get_param(cls_conn, param, buf);
2905 }
2906 }
2907
2908 int qla4xxx_get_ddb_index(struct scsi_qla_host *ha, uint16_t *ddb_index)
2909 {
2910 uint32_t mbx_sts = 0;
2911 uint16_t tmp_ddb_index;
2912 int ret;
2913
2914 get_ddb_index:
2915 tmp_ddb_index = find_first_zero_bit(ha->ddb_idx_map, MAX_DDB_ENTRIES);
2916
2917 if (tmp_ddb_index >= MAX_DDB_ENTRIES) {
2918 DEBUG2(ql4_printk(KERN_INFO, ha,
2919 "Free DDB index not available\n"));
2920 ret = QLA_ERROR;
2921 goto exit_get_ddb_index;
2922 }
2923
2924 if (test_and_set_bit(tmp_ddb_index, ha->ddb_idx_map))
2925 goto get_ddb_index;
2926
2927 DEBUG2(ql4_printk(KERN_INFO, ha,
2928 "Found a free DDB index at %d\n", tmp_ddb_index));
2929 ret = qla4xxx_req_ddb_entry(ha, tmp_ddb_index, &mbx_sts);
2930 if (ret == QLA_ERROR) {
2931 if (mbx_sts == MBOX_STS_COMMAND_ERROR) {
2932 ql4_printk(KERN_INFO, ha,
2933 "DDB index = %d not available trying next\n",
2934 tmp_ddb_index);
2935 goto get_ddb_index;
2936 }
2937 DEBUG2(ql4_printk(KERN_INFO, ha,
2938 "Free FW DDB not available\n"));
2939 }
2940
2941 *ddb_index = tmp_ddb_index;
2942
2943 exit_get_ddb_index:
2944 return ret;
2945 }
2946
2947 static int qla4xxx_match_ipaddress(struct scsi_qla_host *ha,
2948 struct ddb_entry *ddb_entry,
2949 char *existing_ipaddr,
2950 char *user_ipaddr)
2951 {
2952 uint8_t dst_ipaddr[IPv6_ADDR_LEN];
2953 char formatted_ipaddr[DDB_IPADDR_LEN];
2954 int status = QLA_SUCCESS, ret = 0;
2955
2956 if (ddb_entry->fw_ddb_entry.options & DDB_OPT_IPV6_DEVICE) {
2957 ret = in6_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr,
2958 '\0', NULL);
2959 if (ret == 0) {
2960 status = QLA_ERROR;
2961 goto out_match;
2962 }
2963 ret = sprintf(formatted_ipaddr, "%pI6", dst_ipaddr);
2964 } else {
2965 ret = in4_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr,
2966 '\0', NULL);
2967 if (ret == 0) {
2968 status = QLA_ERROR;
2969 goto out_match;
2970 }
2971 ret = sprintf(formatted_ipaddr, "%pI4", dst_ipaddr);
2972 }
2973
2974 if (strcmp(existing_ipaddr, formatted_ipaddr))
2975 status = QLA_ERROR;
2976
2977 out_match:
2978 return status;
2979 }
2980
2981 static int qla4xxx_match_fwdb_session(struct scsi_qla_host *ha,
2982 struct iscsi_cls_conn *cls_conn)
2983 {
2984 int idx = 0, max_ddbs, rval;
2985 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
2986 struct iscsi_session *sess, *existing_sess;
2987 struct iscsi_conn *conn, *existing_conn;
2988 struct ddb_entry *ddb_entry;
2989
2990 sess = cls_sess->dd_data;
2991 conn = cls_conn->dd_data;
2992
2993 if (sess->targetname == NULL ||
2994 conn->persistent_address == NULL ||
2995 conn->persistent_port == 0)
2996 return QLA_ERROR;
2997
2998 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
2999 MAX_DEV_DB_ENTRIES;
3000
3001 for (idx = 0; idx < max_ddbs; idx++) {
3002 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
3003 if (ddb_entry == NULL)
3004 continue;
3005
3006 if (ddb_entry->ddb_type != FLASH_DDB)
3007 continue;
3008
3009 existing_sess = ddb_entry->sess->dd_data;
3010 existing_conn = ddb_entry->conn->dd_data;
3011
3012 if (existing_sess->targetname == NULL ||
3013 existing_conn->persistent_address == NULL ||
3014 existing_conn->persistent_port == 0)
3015 continue;
3016
3017 DEBUG2(ql4_printk(KERN_INFO, ha,
3018 "IQN = %s User IQN = %s\n",
3019 existing_sess->targetname,
3020 sess->targetname));
3021
3022 DEBUG2(ql4_printk(KERN_INFO, ha,
3023 "IP = %s User IP = %s\n",
3024 existing_conn->persistent_address,
3025 conn->persistent_address));
3026
3027 DEBUG2(ql4_printk(KERN_INFO, ha,
3028 "Port = %d User Port = %d\n",
3029 existing_conn->persistent_port,
3030 conn->persistent_port));
3031
3032 if (strcmp(existing_sess->targetname, sess->targetname))
3033 continue;
3034 rval = qla4xxx_match_ipaddress(ha, ddb_entry,
3035 existing_conn->persistent_address,
3036 conn->persistent_address);
3037 if (rval == QLA_ERROR)
3038 continue;
3039 if (existing_conn->persistent_port != conn->persistent_port)
3040 continue;
3041 break;
3042 }
3043
3044 if (idx == max_ddbs)
3045 return QLA_ERROR;
3046
3047 DEBUG2(ql4_printk(KERN_INFO, ha,
3048 "Match found in fwdb sessions\n"));
3049 return QLA_SUCCESS;
3050 }
3051
3052 static struct iscsi_cls_session *
3053 qla4xxx_session_create(struct iscsi_endpoint *ep,
3054 uint16_t cmds_max, uint16_t qdepth,
3055 uint32_t initial_cmdsn)
3056 {
3057 struct iscsi_cls_session *cls_sess;
3058 struct scsi_qla_host *ha;
3059 struct qla_endpoint *qla_ep;
3060 struct ddb_entry *ddb_entry;
3061 uint16_t ddb_index;
3062 struct iscsi_session *sess;
3063 struct sockaddr *dst_addr;
3064 int ret;
3065
3066 if (!ep) {
3067 printk(KERN_ERR "qla4xxx: missing ep.\n");
3068 return NULL;
3069 }
3070
3071 qla_ep = ep->dd_data;
3072 dst_addr = (struct sockaddr *)&qla_ep->dst_addr;
3073 ha = to_qla_host(qla_ep->host);
3074 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__,
3075 ha->host_no));
3076
3077 ret = qla4xxx_get_ddb_index(ha, &ddb_index);
3078 if (ret == QLA_ERROR)
3079 return NULL;
3080
3081 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, qla_ep->host,
3082 cmds_max, sizeof(struct ddb_entry),
3083 sizeof(struct ql4_task_data),
3084 initial_cmdsn, ddb_index);
3085 if (!cls_sess)
3086 return NULL;
3087
3088 sess = cls_sess->dd_data;
3089 ddb_entry = sess->dd_data;
3090 ddb_entry->fw_ddb_index = ddb_index;
3091 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE;
3092 ddb_entry->ha = ha;
3093 ddb_entry->sess = cls_sess;
3094 ddb_entry->unblock_sess = qla4xxx_unblock_ddb;
3095 ddb_entry->ddb_change = qla4xxx_ddb_change;
3096 clear_bit(DDB_CONN_CLOSE_FAILURE, &ddb_entry->flags);
3097 cls_sess->recovery_tmo = ql4xsess_recovery_tmo;
3098 ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry;
3099 ha->tot_ddbs++;
3100
3101 return cls_sess;
3102 }
3103
3104 static void qla4xxx_session_destroy(struct iscsi_cls_session *cls_sess)
3105 {
3106 struct iscsi_session *sess;
3107 struct ddb_entry *ddb_entry;
3108 struct scsi_qla_host *ha;
3109 unsigned long flags, wtime;
3110 struct dev_db_entry *fw_ddb_entry = NULL;
3111 dma_addr_t fw_ddb_entry_dma;
3112 uint32_t ddb_state;
3113 int ret;
3114
3115 sess = cls_sess->dd_data;
3116 ddb_entry = sess->dd_data;
3117 ha = ddb_entry->ha;
3118 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__,
3119 ha->host_no));
3120
3121 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3122 &fw_ddb_entry_dma, GFP_KERNEL);
3123 if (!fw_ddb_entry) {
3124 ql4_printk(KERN_ERR, ha,
3125 "%s: Unable to allocate dma buffer\n", __func__);
3126 goto destroy_session;
3127 }
3128
3129 wtime = jiffies + (HZ * LOGOUT_TOV);
3130 do {
3131 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
3132 fw_ddb_entry, fw_ddb_entry_dma,
3133 NULL, NULL, &ddb_state, NULL,
3134 NULL, NULL);
3135 if (ret == QLA_ERROR)
3136 goto destroy_session;
3137
3138 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) ||
3139 (ddb_state == DDB_DS_SESSION_FAILED))
3140 goto destroy_session;
3141
3142 schedule_timeout_uninterruptible(HZ);
3143 } while ((time_after(wtime, jiffies)));
3144
3145 destroy_session:
3146 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
3147 if (test_and_clear_bit(DDB_CONN_CLOSE_FAILURE, &ddb_entry->flags))
3148 clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map);
3149 spin_lock_irqsave(&ha->hardware_lock, flags);
3150 qla4xxx_free_ddb(ha, ddb_entry);
3151 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3152
3153 iscsi_session_teardown(cls_sess);
3154
3155 if (fw_ddb_entry)
3156 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3157 fw_ddb_entry, fw_ddb_entry_dma);
3158 }
3159
3160 static struct iscsi_cls_conn *
3161 qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx)
3162 {
3163 struct iscsi_cls_conn *cls_conn;
3164 struct iscsi_session *sess;
3165 struct ddb_entry *ddb_entry;
3166 struct scsi_qla_host *ha;
3167
3168 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn),
3169 conn_idx);
3170 if (!cls_conn) {
3171 pr_info("%s: Can not create connection for conn_idx = %u\n",
3172 __func__, conn_idx);
3173 return NULL;
3174 }
3175
3176 sess = cls_sess->dd_data;
3177 ddb_entry = sess->dd_data;
3178 ddb_entry->conn = cls_conn;
3179
3180 ha = ddb_entry->ha;
3181 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: conn_idx = %u\n", __func__,
3182 conn_idx));
3183 return cls_conn;
3184 }
3185
3186 static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session,
3187 struct iscsi_cls_conn *cls_conn,
3188 uint64_t transport_fd, int is_leading)
3189 {
3190 struct iscsi_conn *conn;
3191 struct qla_conn *qla_conn;
3192 struct iscsi_endpoint *ep;
3193 struct ddb_entry *ddb_entry;
3194 struct scsi_qla_host *ha;
3195 struct iscsi_session *sess;
3196
3197 sess = cls_session->dd_data;
3198 ddb_entry = sess->dd_data;
3199 ha = ddb_entry->ha;
3200
3201 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: sid = %d, cid = %d\n", __func__,
3202 cls_session->sid, cls_conn->cid));
3203
3204 if (iscsi_conn_bind(cls_session, cls_conn, is_leading))
3205 return -EINVAL;
3206 ep = iscsi_lookup_endpoint(transport_fd);
3207 conn = cls_conn->dd_data;
3208 qla_conn = conn->dd_data;
3209 qla_conn->qla_ep = ep->dd_data;
3210 return 0;
3211 }
3212
3213 static int qla4xxx_conn_start(struct iscsi_cls_conn *cls_conn)
3214 {
3215 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
3216 struct iscsi_session *sess;
3217 struct ddb_entry *ddb_entry;
3218 struct scsi_qla_host *ha;
3219 struct dev_db_entry *fw_ddb_entry = NULL;
3220 dma_addr_t fw_ddb_entry_dma;
3221 uint32_t mbx_sts = 0;
3222 int ret = 0;
3223 int status = QLA_SUCCESS;
3224
3225 sess = cls_sess->dd_data;
3226 ddb_entry = sess->dd_data;
3227 ha = ddb_entry->ha;
3228 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: sid = %d, cid = %d\n", __func__,
3229 cls_sess->sid, cls_conn->cid));
3230
3231 /* Check if we have matching FW DDB, if yes then do not
3232 * login to this target. This could cause target to logout previous
3233 * connection
3234 */
3235 ret = qla4xxx_match_fwdb_session(ha, cls_conn);
3236 if (ret == QLA_SUCCESS) {
3237 ql4_printk(KERN_INFO, ha,
3238 "Session already exist in FW.\n");
3239 ret = -EEXIST;
3240 goto exit_conn_start;
3241 }
3242
3243 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3244 &fw_ddb_entry_dma, GFP_KERNEL);
3245 if (!fw_ddb_entry) {
3246 ql4_printk(KERN_ERR, ha,
3247 "%s: Unable to allocate dma buffer\n", __func__);
3248 ret = -ENOMEM;
3249 goto exit_conn_start;
3250 }
3251
3252 ret = qla4xxx_set_param_ddbentry(ha, ddb_entry, cls_conn, &mbx_sts);
3253 if (ret) {
3254 /* If iscsid is stopped and started then no need to do
3255 * set param again since ddb state will be already
3256 * active and FW does not allow set ddb to an
3257 * active session.
3258 */
3259 if (mbx_sts)
3260 if (ddb_entry->fw_ddb_device_state ==
3261 DDB_DS_SESSION_ACTIVE) {
3262 ddb_entry->unblock_sess(ddb_entry->sess);
3263 goto exit_set_param;
3264 }
3265
3266 ql4_printk(KERN_ERR, ha, "%s: Failed set param for index[%d]\n",
3267 __func__, ddb_entry->fw_ddb_index);
3268 goto exit_conn_start;
3269 }
3270
3271 status = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index);
3272 if (status == QLA_ERROR) {
3273 ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__,
3274 sess->targetname);
3275 ret = -EINVAL;
3276 goto exit_conn_start;
3277 }
3278
3279 if (ddb_entry->fw_ddb_device_state == DDB_DS_NO_CONNECTION_ACTIVE)
3280 ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS;
3281
3282 DEBUG2(printk(KERN_INFO "%s: DDB state [%d]\n", __func__,
3283 ddb_entry->fw_ddb_device_state));
3284
3285 exit_set_param:
3286 ret = 0;
3287
3288 exit_conn_start:
3289 if (fw_ddb_entry)
3290 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3291 fw_ddb_entry, fw_ddb_entry_dma);
3292 return ret;
3293 }
3294
3295 static void qla4xxx_conn_destroy(struct iscsi_cls_conn *cls_conn)
3296 {
3297 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
3298 struct iscsi_session *sess;
3299 struct scsi_qla_host *ha;
3300 struct ddb_entry *ddb_entry;
3301 int options;
3302
3303 sess = cls_sess->dd_data;
3304 ddb_entry = sess->dd_data;
3305 ha = ddb_entry->ha;
3306 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: cid = %d\n", __func__,
3307 cls_conn->cid));
3308
3309 options = LOGOUT_OPTION_CLOSE_SESSION;
3310 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR)
3311 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__);
3312 }
3313
3314 static void qla4xxx_task_work(struct work_struct *wdata)
3315 {
3316 struct ql4_task_data *task_data;
3317 struct scsi_qla_host *ha;
3318 struct passthru_status *sts;
3319 struct iscsi_task *task;
3320 struct iscsi_hdr *hdr;
3321 uint8_t *data;
3322 uint32_t data_len;
3323 struct iscsi_conn *conn;
3324 int hdr_len;
3325 itt_t itt;
3326
3327 task_data = container_of(wdata, struct ql4_task_data, task_work);
3328 ha = task_data->ha;
3329 task = task_data->task;
3330 sts = &task_data->sts;
3331 hdr_len = sizeof(struct iscsi_hdr);
3332
3333 DEBUG3(printk(KERN_INFO "Status returned\n"));
3334 DEBUG3(qla4xxx_dump_buffer(sts, 64));
3335 DEBUG3(printk(KERN_INFO "Response buffer"));
3336 DEBUG3(qla4xxx_dump_buffer(task_data->resp_buffer, 64));
3337
3338 conn = task->conn;
3339
3340 switch (sts->completionStatus) {
3341 case PASSTHRU_STATUS_COMPLETE:
3342 hdr = (struct iscsi_hdr *)task_data->resp_buffer;
3343 /* Assign back the itt in hdr, until we use the PREASSIGN_TAG */
3344 itt = sts->handle;
3345 hdr->itt = itt;
3346 data = task_data->resp_buffer + hdr_len;
3347 data_len = task_data->resp_len - hdr_len;
3348 iscsi_complete_pdu(conn, hdr, data, data_len);
3349 break;
3350 default:
3351 ql4_printk(KERN_ERR, ha, "Passthru failed status = 0x%x\n",
3352 sts->completionStatus);
3353 break;
3354 }
3355 return;
3356 }
3357
3358 static int qla4xxx_alloc_pdu(struct iscsi_task *task, uint8_t opcode)
3359 {
3360 struct ql4_task_data *task_data;
3361 struct iscsi_session *sess;
3362 struct ddb_entry *ddb_entry;
3363 struct scsi_qla_host *ha;
3364 int hdr_len;
3365
3366 sess = task->conn->session;
3367 ddb_entry = sess->dd_data;
3368 ha = ddb_entry->ha;
3369 task_data = task->dd_data;
3370 memset(task_data, 0, sizeof(struct ql4_task_data));
3371
3372 if (task->sc) {
3373 ql4_printk(KERN_INFO, ha,
3374 "%s: SCSI Commands not implemented\n", __func__);
3375 return -EINVAL;
3376 }
3377
3378 hdr_len = sizeof(struct iscsi_hdr);
3379 task_data->ha = ha;
3380 task_data->task = task;
3381
3382 if (task->data_count) {
3383 task_data->data_dma = dma_map_single(&ha->pdev->dev, task->data,
3384 task->data_count,
3385 PCI_DMA_TODEVICE);
3386 }
3387
3388 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n",
3389 __func__, task->conn->max_recv_dlength, hdr_len));
3390
3391 task_data->resp_len = task->conn->max_recv_dlength + hdr_len;
3392 task_data->resp_buffer = dma_alloc_coherent(&ha->pdev->dev,
3393 task_data->resp_len,
3394 &task_data->resp_dma,
3395 GFP_ATOMIC);
3396 if (!task_data->resp_buffer)
3397 goto exit_alloc_pdu;
3398
3399 task_data->req_len = task->data_count + hdr_len;
3400 task_data->req_buffer = dma_alloc_coherent(&ha->pdev->dev,
3401 task_data->req_len,
3402 &task_data->req_dma,
3403 GFP_ATOMIC);
3404 if (!task_data->req_buffer)
3405 goto exit_alloc_pdu;
3406
3407 task->hdr = task_data->req_buffer;
3408
3409 INIT_WORK(&task_data->task_work, qla4xxx_task_work);
3410
3411 return 0;
3412
3413 exit_alloc_pdu:
3414 if (task_data->resp_buffer)
3415 dma_free_coherent(&ha->pdev->dev, task_data->resp_len,
3416 task_data->resp_buffer, task_data->resp_dma);
3417
3418 if (task_data->req_buffer)
3419 dma_free_coherent(&ha->pdev->dev, task_data->req_len,
3420 task_data->req_buffer, task_data->req_dma);
3421 return -ENOMEM;
3422 }
3423
3424 static void qla4xxx_task_cleanup(struct iscsi_task *task)
3425 {
3426 struct ql4_task_data *task_data;
3427 struct iscsi_session *sess;
3428 struct ddb_entry *ddb_entry;
3429 struct scsi_qla_host *ha;
3430 int hdr_len;
3431
3432 hdr_len = sizeof(struct iscsi_hdr);
3433 sess = task->conn->session;
3434 ddb_entry = sess->dd_data;
3435 ha = ddb_entry->ha;
3436 task_data = task->dd_data;
3437
3438 if (task->data_count) {
3439 dma_unmap_single(&ha->pdev->dev, task_data->data_dma,
3440 task->data_count, PCI_DMA_TODEVICE);
3441 }
3442
3443 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n",
3444 __func__, task->conn->max_recv_dlength, hdr_len));
3445
3446 dma_free_coherent(&ha->pdev->dev, task_data->resp_len,
3447 task_data->resp_buffer, task_data->resp_dma);
3448 dma_free_coherent(&ha->pdev->dev, task_data->req_len,
3449 task_data->req_buffer, task_data->req_dma);
3450 return;
3451 }
3452
3453 static int qla4xxx_task_xmit(struct iscsi_task *task)
3454 {
3455 struct scsi_cmnd *sc = task->sc;
3456 struct iscsi_session *sess = task->conn->session;
3457 struct ddb_entry *ddb_entry = sess->dd_data;
3458 struct scsi_qla_host *ha = ddb_entry->ha;
3459
3460 if (!sc)
3461 return qla4xxx_send_passthru0(task);
3462
3463 ql4_printk(KERN_INFO, ha, "%s: scsi cmd xmit not implemented\n",
3464 __func__);
3465 return -ENOSYS;
3466 }
3467
3468 static int qla4xxx_copy_from_fwddb_param(struct iscsi_bus_flash_session *sess,
3469 struct iscsi_bus_flash_conn *conn,
3470 struct dev_db_entry *fw_ddb_entry)
3471 {
3472 unsigned long options = 0;
3473 int rc = 0;
3474
3475 options = le16_to_cpu(fw_ddb_entry->options);
3476 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options);
3477 if (test_bit(OPT_IPV6_DEVICE, &options)) {
3478 rc = iscsi_switch_str_param(&sess->portal_type,
3479 PORTAL_TYPE_IPV6);
3480 if (rc)
3481 goto exit_copy;
3482 } else {
3483 rc = iscsi_switch_str_param(&sess->portal_type,
3484 PORTAL_TYPE_IPV4);
3485 if (rc)
3486 goto exit_copy;
3487 }
3488
3489 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE,
3490 &options);
3491 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options);
3492 sess->entry_state = test_bit(OPT_ENTRY_STATE, &options);
3493
3494 options = le16_to_cpu(fw_ddb_entry->iscsi_options);
3495 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options);
3496 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options);
3497 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options);
3498 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options);
3499 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER,
3500 &options);
3501 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options);
3502 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options);
3503 conn->snack_req_en = test_bit(ISCSIOPT_SNACK_REQ_EN, &options);
3504 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN,
3505 &options);
3506 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options);
3507 sess->discovery_auth_optional =
3508 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options);
3509 if (test_bit(ISCSIOPT_ERL1, &options))
3510 sess->erl |= BIT_1;
3511 if (test_bit(ISCSIOPT_ERL0, &options))
3512 sess->erl |= BIT_0;
3513
3514 options = le16_to_cpu(fw_ddb_entry->tcp_options);
3515 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options);
3516 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options);
3517 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options);
3518 if (test_bit(TCPOPT_TIMER_SCALE3, &options))
3519 conn->tcp_timer_scale |= BIT_3;
3520 if (test_bit(TCPOPT_TIMER_SCALE2, &options))
3521 conn->tcp_timer_scale |= BIT_2;
3522 if (test_bit(TCPOPT_TIMER_SCALE1, &options))
3523 conn->tcp_timer_scale |= BIT_1;
3524
3525 conn->tcp_timer_scale >>= 1;
3526 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options);
3527
3528 options = le16_to_cpu(fw_ddb_entry->ip_options);
3529 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options);
3530
3531 conn->max_recv_dlength = BYTE_UNITS *
3532 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len);
3533 conn->max_xmit_dlength = BYTE_UNITS *
3534 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len);
3535 sess->first_burst = BYTE_UNITS *
3536 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len);
3537 sess->max_burst = BYTE_UNITS *
3538 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len);
3539 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t);
3540 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
3541 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain);
3542 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
3543 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss);
3544 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf;
3545 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf;
3546 conn->ipv6_flow_label = le16_to_cpu(fw_ddb_entry->ipv6_flow_lbl);
3547 conn->keepalive_timeout = le16_to_cpu(fw_ddb_entry->ka_timeout);
3548 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port);
3549 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn);
3550 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn);
3551 sess->discovery_parent_idx = le16_to_cpu(fw_ddb_entry->ddb_link);
3552 sess->discovery_parent_type = le16_to_cpu(fw_ddb_entry->ddb_link);
3553 sess->chap_out_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
3554 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid);
3555
3556 sess->default_taskmgmt_timeout =
3557 le16_to_cpu(fw_ddb_entry->def_timeout);
3558 conn->port = le16_to_cpu(fw_ddb_entry->port);
3559
3560 options = le16_to_cpu(fw_ddb_entry->options);
3561 conn->ipaddress = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL);
3562 if (!conn->ipaddress) {
3563 rc = -ENOMEM;
3564 goto exit_copy;
3565 }
3566
3567 conn->redirect_ipaddr = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL);
3568 if (!conn->redirect_ipaddr) {
3569 rc = -ENOMEM;
3570 goto exit_copy;
3571 }
3572
3573 memcpy(conn->ipaddress, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN);
3574 memcpy(conn->redirect_ipaddr, fw_ddb_entry->tgt_addr, IPv6_ADDR_LEN);
3575
3576 if (test_bit(OPT_IPV6_DEVICE, &options)) {
3577 conn->ipv6_traffic_class = fw_ddb_entry->ipv4_tos;
3578
3579 conn->link_local_ipv6_addr = kmemdup(
3580 fw_ddb_entry->link_local_ipv6_addr,
3581 IPv6_ADDR_LEN, GFP_KERNEL);
3582 if (!conn->link_local_ipv6_addr) {
3583 rc = -ENOMEM;
3584 goto exit_copy;
3585 }
3586 } else {
3587 conn->ipv4_tos = fw_ddb_entry->ipv4_tos;
3588 }
3589
3590 if (fw_ddb_entry->iscsi_name[0]) {
3591 rc = iscsi_switch_str_param(&sess->targetname,
3592 (char *)fw_ddb_entry->iscsi_name);
3593 if (rc)
3594 goto exit_copy;
3595 }
3596
3597 if (fw_ddb_entry->iscsi_alias[0]) {
3598 rc = iscsi_switch_str_param(&sess->targetalias,
3599 (char *)fw_ddb_entry->iscsi_alias);
3600 if (rc)
3601 goto exit_copy;
3602 }
3603
3604 COPY_ISID(sess->isid, fw_ddb_entry->isid);
3605
3606 exit_copy:
3607 return rc;
3608 }
3609
3610 static int qla4xxx_copy_to_fwddb_param(struct iscsi_bus_flash_session *sess,
3611 struct iscsi_bus_flash_conn *conn,
3612 struct dev_db_entry *fw_ddb_entry)
3613 {
3614 uint16_t options;
3615 int rc = 0;
3616
3617 options = le16_to_cpu(fw_ddb_entry->options);
3618 SET_BITVAL(conn->is_fw_assigned_ipv6, options, BIT_11);
3619 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4))
3620 options |= BIT_8;
3621 else
3622 options &= ~BIT_8;
3623
3624 SET_BITVAL(sess->auto_snd_tgt_disable, options, BIT_6);
3625 SET_BITVAL(sess->discovery_sess, options, BIT_4);
3626 SET_BITVAL(sess->entry_state, options, BIT_3);
3627 fw_ddb_entry->options = cpu_to_le16(options);
3628
3629 options = le16_to_cpu(fw_ddb_entry->iscsi_options);
3630 SET_BITVAL(conn->hdrdgst_en, options, BIT_13);
3631 SET_BITVAL(conn->datadgst_en, options, BIT_12);
3632 SET_BITVAL(sess->imm_data_en, options, BIT_11);
3633 SET_BITVAL(sess->initial_r2t_en, options, BIT_10);
3634 SET_BITVAL(sess->dataseq_inorder_en, options, BIT_9);
3635 SET_BITVAL(sess->pdu_inorder_en, options, BIT_8);
3636 SET_BITVAL(sess->chap_auth_en, options, BIT_7);
3637 SET_BITVAL(conn->snack_req_en, options, BIT_6);
3638 SET_BITVAL(sess->discovery_logout_en, options, BIT_5);
3639 SET_BITVAL(sess->bidi_chap_en, options, BIT_4);
3640 SET_BITVAL(sess->discovery_auth_optional, options, BIT_3);
3641 SET_BITVAL(sess->erl & BIT_1, options, BIT_1);
3642 SET_BITVAL(sess->erl & BIT_0, options, BIT_0);
3643 fw_ddb_entry->iscsi_options = cpu_to_le16(options);
3644
3645 options = le16_to_cpu(fw_ddb_entry->tcp_options);
3646 SET_BITVAL(conn->tcp_timestamp_stat, options, BIT_6);
3647 SET_BITVAL(conn->tcp_nagle_disable, options, BIT_5);
3648 SET_BITVAL(conn->tcp_wsf_disable, options, BIT_4);
3649 SET_BITVAL(conn->tcp_timer_scale & BIT_2, options, BIT_3);
3650 SET_BITVAL(conn->tcp_timer_scale & BIT_1, options, BIT_2);
3651 SET_BITVAL(conn->tcp_timer_scale & BIT_0, options, BIT_1);
3652 SET_BITVAL(conn->tcp_timestamp_en, options, BIT_0);
3653 fw_ddb_entry->tcp_options = cpu_to_le16(options);
3654
3655 options = le16_to_cpu(fw_ddb_entry->ip_options);
3656 SET_BITVAL(conn->fragment_disable, options, BIT_4);
3657 fw_ddb_entry->ip_options = cpu_to_le16(options);
3658
3659 fw_ddb_entry->iscsi_max_outsnd_r2t = cpu_to_le16(sess->max_r2t);
3660 fw_ddb_entry->iscsi_max_rcv_data_seg_len =
3661 cpu_to_le16(conn->max_recv_dlength / BYTE_UNITS);
3662 fw_ddb_entry->iscsi_max_snd_data_seg_len =
3663 cpu_to_le16(conn->max_xmit_dlength / BYTE_UNITS);
3664 fw_ddb_entry->iscsi_first_burst_len =
3665 cpu_to_le16(sess->first_burst / BYTE_UNITS);
3666 fw_ddb_entry->iscsi_max_burst_len = cpu_to_le16(sess->max_burst /
3667 BYTE_UNITS);
3668 fw_ddb_entry->iscsi_def_time2wait = cpu_to_le16(sess->time2wait);
3669 fw_ddb_entry->iscsi_def_time2retain = cpu_to_le16(sess->time2retain);
3670 fw_ddb_entry->tgt_portal_grp = cpu_to_le16(sess->tpgt);
3671 fw_ddb_entry->mss = cpu_to_le16(conn->max_segment_size);
3672 fw_ddb_entry->tcp_xmt_wsf = (uint8_t) cpu_to_le32(conn->tcp_xmit_wsf);
3673 fw_ddb_entry->tcp_rcv_wsf = (uint8_t) cpu_to_le32(conn->tcp_recv_wsf);
3674 fw_ddb_entry->ipv6_flow_lbl = cpu_to_le16(conn->ipv6_flow_label);
3675 fw_ddb_entry->ka_timeout = cpu_to_le16(conn->keepalive_timeout);
3676 fw_ddb_entry->lcl_port = cpu_to_le16(conn->local_port);
3677 fw_ddb_entry->stat_sn = cpu_to_le32(conn->statsn);
3678 fw_ddb_entry->exp_stat_sn = cpu_to_le32(conn->exp_statsn);
3679 fw_ddb_entry->ddb_link = cpu_to_le16(sess->discovery_parent_idx);
3680 fw_ddb_entry->chap_tbl_idx = cpu_to_le16(sess->chap_out_idx);
3681 fw_ddb_entry->tsid = cpu_to_le16(sess->tsid);
3682 fw_ddb_entry->port = cpu_to_le16(conn->port);
3683 fw_ddb_entry->def_timeout =
3684 cpu_to_le16(sess->default_taskmgmt_timeout);
3685
3686 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4))
3687 fw_ddb_entry->ipv4_tos = conn->ipv6_traffic_class;
3688 else
3689 fw_ddb_entry->ipv4_tos = conn->ipv4_tos;
3690
3691 if (conn->ipaddress)
3692 memcpy(fw_ddb_entry->ip_addr, conn->ipaddress,
3693 sizeof(fw_ddb_entry->ip_addr));
3694
3695 if (conn->redirect_ipaddr)
3696 memcpy(fw_ddb_entry->tgt_addr, conn->redirect_ipaddr,
3697 sizeof(fw_ddb_entry->tgt_addr));
3698
3699 if (conn->link_local_ipv6_addr)
3700 memcpy(fw_ddb_entry->link_local_ipv6_addr,
3701 conn->link_local_ipv6_addr,
3702 sizeof(fw_ddb_entry->link_local_ipv6_addr));
3703
3704 if (sess->targetname)
3705 memcpy(fw_ddb_entry->iscsi_name, sess->targetname,
3706 sizeof(fw_ddb_entry->iscsi_name));
3707
3708 if (sess->targetalias)
3709 memcpy(fw_ddb_entry->iscsi_alias, sess->targetalias,
3710 sizeof(fw_ddb_entry->iscsi_alias));
3711
3712 COPY_ISID(fw_ddb_entry->isid, sess->isid);
3713
3714 return rc;
3715 }
3716
3717 static void qla4xxx_copy_to_sess_conn_params(struct iscsi_conn *conn,
3718 struct iscsi_session *sess,
3719 struct dev_db_entry *fw_ddb_entry)
3720 {
3721 unsigned long options = 0;
3722 uint16_t ddb_link;
3723 uint16_t disc_parent;
3724 char ip_addr[DDB_IPADDR_LEN];
3725
3726 options = le16_to_cpu(fw_ddb_entry->options);
3727 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options);
3728 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE,
3729 &options);
3730 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options);
3731
3732 options = le16_to_cpu(fw_ddb_entry->iscsi_options);
3733 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options);
3734 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options);
3735 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options);
3736 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options);
3737 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER,
3738 &options);
3739 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options);
3740 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options);
3741 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN,
3742 &options);
3743 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options);
3744 sess->discovery_auth_optional =
3745 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options);
3746 if (test_bit(ISCSIOPT_ERL1, &options))
3747 sess->erl |= BIT_1;
3748 if (test_bit(ISCSIOPT_ERL0, &options))
3749 sess->erl |= BIT_0;
3750
3751 options = le16_to_cpu(fw_ddb_entry->tcp_options);
3752 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options);
3753 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options);
3754 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options);
3755 if (test_bit(TCPOPT_TIMER_SCALE3, &options))
3756 conn->tcp_timer_scale |= BIT_3;
3757 if (test_bit(TCPOPT_TIMER_SCALE2, &options))
3758 conn->tcp_timer_scale |= BIT_2;
3759 if (test_bit(TCPOPT_TIMER_SCALE1, &options))
3760 conn->tcp_timer_scale |= BIT_1;
3761
3762 conn->tcp_timer_scale >>= 1;
3763 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options);
3764
3765 options = le16_to_cpu(fw_ddb_entry->ip_options);
3766 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options);
3767
3768 conn->max_recv_dlength = BYTE_UNITS *
3769 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len);
3770 conn->max_xmit_dlength = BYTE_UNITS *
3771 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len);
3772 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t);
3773 sess->first_burst = BYTE_UNITS *
3774 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len);
3775 sess->max_burst = BYTE_UNITS *
3776 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len);
3777 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
3778 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain);
3779 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
3780 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss);
3781 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf;
3782 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf;
3783 conn->ipv4_tos = fw_ddb_entry->ipv4_tos;
3784 conn->keepalive_tmo = le16_to_cpu(fw_ddb_entry->ka_timeout);
3785 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port);
3786 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn);
3787 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn);
3788 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid);
3789 COPY_ISID(sess->isid, fw_ddb_entry->isid);
3790
3791 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
3792 if (ddb_link == DDB_ISNS)
3793 disc_parent = ISCSI_DISC_PARENT_ISNS;
3794 else if (ddb_link == DDB_NO_LINK)
3795 disc_parent = ISCSI_DISC_PARENT_UNKNOWN;
3796 else if (ddb_link < MAX_DDB_ENTRIES)
3797 disc_parent = ISCSI_DISC_PARENT_SENDTGT;
3798 else
3799 disc_parent = ISCSI_DISC_PARENT_UNKNOWN;
3800
3801 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_DISCOVERY_PARENT_TYPE,
3802 iscsi_get_discovery_parent_name(disc_parent), 0);
3803
3804 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_TARGET_ALIAS,
3805 (char *)fw_ddb_entry->iscsi_alias, 0);
3806
3807 options = le16_to_cpu(fw_ddb_entry->options);
3808 if (options & DDB_OPT_IPV6_DEVICE) {
3809 memset(ip_addr, 0, sizeof(ip_addr));
3810 sprintf(ip_addr, "%pI6", fw_ddb_entry->link_local_ipv6_addr);
3811 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_LOCAL_IPADDR,
3812 (char *)ip_addr, 0);
3813 }
3814 }
3815
3816 static void qla4xxx_copy_fwddb_param(struct scsi_qla_host *ha,
3817 struct dev_db_entry *fw_ddb_entry,
3818 struct iscsi_cls_session *cls_sess,
3819 struct iscsi_cls_conn *cls_conn)
3820 {
3821 int buflen = 0;
3822 struct iscsi_session *sess;
3823 struct ddb_entry *ddb_entry;
3824 struct ql4_chap_table chap_tbl;
3825 struct iscsi_conn *conn;
3826 char ip_addr[DDB_IPADDR_LEN];
3827 uint16_t options = 0;
3828
3829 sess = cls_sess->dd_data;
3830 ddb_entry = sess->dd_data;
3831 conn = cls_conn->dd_data;
3832 memset(&chap_tbl, 0, sizeof(chap_tbl));
3833
3834 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
3835
3836 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry);
3837
3838 sess->def_taskmgmt_tmo = le16_to_cpu(fw_ddb_entry->def_timeout);
3839 conn->persistent_port = le16_to_cpu(fw_ddb_entry->port);
3840
3841 memset(ip_addr, 0, sizeof(ip_addr));
3842 options = le16_to_cpu(fw_ddb_entry->options);
3843 if (options & DDB_OPT_IPV6_DEVICE) {
3844 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv6", 4);
3845
3846 memset(ip_addr, 0, sizeof(ip_addr));
3847 sprintf(ip_addr, "%pI6", fw_ddb_entry->ip_addr);
3848 } else {
3849 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv4", 4);
3850 sprintf(ip_addr, "%pI4", fw_ddb_entry->ip_addr);
3851 }
3852
3853 iscsi_set_param(cls_conn, ISCSI_PARAM_PERSISTENT_ADDRESS,
3854 (char *)ip_addr, buflen);
3855 iscsi_set_param(cls_conn, ISCSI_PARAM_TARGET_NAME,
3856 (char *)fw_ddb_entry->iscsi_name, buflen);
3857 iscsi_set_param(cls_conn, ISCSI_PARAM_INITIATOR_NAME,
3858 (char *)ha->name_string, buflen);
3859
3860 if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) {
3861 if (!qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name,
3862 chap_tbl.secret,
3863 ddb_entry->chap_tbl_idx)) {
3864 iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME,
3865 (char *)chap_tbl.name,
3866 strlen((char *)chap_tbl.name));
3867 iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD,
3868 (char *)chap_tbl.secret,
3869 chap_tbl.secret_len);
3870 }
3871 }
3872 }
3873
3874 void qla4xxx_update_session_conn_fwddb_param(struct scsi_qla_host *ha,
3875 struct ddb_entry *ddb_entry)
3876 {
3877 struct iscsi_cls_session *cls_sess;
3878 struct iscsi_cls_conn *cls_conn;
3879 uint32_t ddb_state;
3880 dma_addr_t fw_ddb_entry_dma;
3881 struct dev_db_entry *fw_ddb_entry;
3882
3883 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3884 &fw_ddb_entry_dma, GFP_KERNEL);
3885 if (!fw_ddb_entry) {
3886 ql4_printk(KERN_ERR, ha,
3887 "%s: Unable to allocate dma buffer\n", __func__);
3888 goto exit_session_conn_fwddb_param;
3889 }
3890
3891 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry,
3892 fw_ddb_entry_dma, NULL, NULL, &ddb_state,
3893 NULL, NULL, NULL) == QLA_ERROR) {
3894 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
3895 "get_ddb_entry for fw_ddb_index %d\n",
3896 ha->host_no, __func__,
3897 ddb_entry->fw_ddb_index));
3898 goto exit_session_conn_fwddb_param;
3899 }
3900
3901 cls_sess = ddb_entry->sess;
3902
3903 cls_conn = ddb_entry->conn;
3904
3905 /* Update params */
3906 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn);
3907
3908 exit_session_conn_fwddb_param:
3909 if (fw_ddb_entry)
3910 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3911 fw_ddb_entry, fw_ddb_entry_dma);
3912 }
3913
3914 void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha,
3915 struct ddb_entry *ddb_entry)
3916 {
3917 struct iscsi_cls_session *cls_sess;
3918 struct iscsi_cls_conn *cls_conn;
3919 struct iscsi_session *sess;
3920 struct iscsi_conn *conn;
3921 uint32_t ddb_state;
3922 dma_addr_t fw_ddb_entry_dma;
3923 struct dev_db_entry *fw_ddb_entry;
3924
3925 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3926 &fw_ddb_entry_dma, GFP_KERNEL);
3927 if (!fw_ddb_entry) {
3928 ql4_printk(KERN_ERR, ha,
3929 "%s: Unable to allocate dma buffer\n", __func__);
3930 goto exit_session_conn_param;
3931 }
3932
3933 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry,
3934 fw_ddb_entry_dma, NULL, NULL, &ddb_state,
3935 NULL, NULL, NULL) == QLA_ERROR) {
3936 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
3937 "get_ddb_entry for fw_ddb_index %d\n",
3938 ha->host_no, __func__,
3939 ddb_entry->fw_ddb_index));
3940 goto exit_session_conn_param;
3941 }
3942
3943 cls_sess = ddb_entry->sess;
3944 sess = cls_sess->dd_data;
3945
3946 cls_conn = ddb_entry->conn;
3947 conn = cls_conn->dd_data;
3948
3949 /* Update timers after login */
3950 ddb_entry->default_relogin_timeout =
3951 (le16_to_cpu(fw_ddb_entry->def_timeout) > LOGIN_TOV) &&
3952 (le16_to_cpu(fw_ddb_entry->def_timeout) < LOGIN_TOV * 10) ?
3953 le16_to_cpu(fw_ddb_entry->def_timeout) : LOGIN_TOV;
3954 ddb_entry->default_time2wait =
3955 le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
3956
3957 /* Update params */
3958 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
3959 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry);
3960
3961 memcpy(sess->initiatorname, ha->name_string,
3962 min(sizeof(ha->name_string), sizeof(sess->initiatorname)));
3963
3964 exit_session_conn_param:
3965 if (fw_ddb_entry)
3966 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3967 fw_ddb_entry, fw_ddb_entry_dma);
3968 }
3969
3970 /*
3971 * Timer routines
3972 */
3973 static void qla4xxx_timer(struct timer_list *t);
3974
3975 static void qla4xxx_start_timer(struct scsi_qla_host *ha,
3976 unsigned long interval)
3977 {
3978 DEBUG(printk("scsi: %s: Starting timer thread for adapter %d\n",
3979 __func__, ha->host->host_no));
3980 timer_setup(&ha->timer, qla4xxx_timer, 0);
3981 ha->timer.expires = jiffies + interval * HZ;
3982 add_timer(&ha->timer);
3983 ha->timer_active = 1;
3984 }
3985
3986 static void qla4xxx_stop_timer(struct scsi_qla_host *ha)
3987 {
3988 del_timer_sync(&ha->timer);
3989 ha->timer_active = 0;
3990 }
3991
3992 /***
3993 * qla4xxx_mark_device_missing - blocks the session
3994 * @cls_session: Pointer to the session to be blocked
3995 * @ddb_entry: Pointer to device database entry
3996 *
3997 * This routine marks a device missing and close connection.
3998 **/
3999 void qla4xxx_mark_device_missing(struct iscsi_cls_session *cls_session)
4000 {
4001 iscsi_block_session(cls_session);
4002 }
4003
4004 /**
4005 * qla4xxx_mark_all_devices_missing - mark all devices as missing.
4006 * @ha: Pointer to host adapter structure.
4007 *
4008 * This routine marks a device missing and resets the relogin retry count.
4009 **/
4010 void qla4xxx_mark_all_devices_missing(struct scsi_qla_host *ha)
4011 {
4012 iscsi_host_for_each_session(ha->host, qla4xxx_mark_device_missing);
4013 }
4014
4015 static struct srb* qla4xxx_get_new_srb(struct scsi_qla_host *ha,
4016 struct ddb_entry *ddb_entry,
4017 struct scsi_cmnd *cmd)
4018 {
4019 struct srb *srb;
4020
4021 srb = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
4022 if (!srb)
4023 return srb;
4024
4025 kref_init(&srb->srb_ref);
4026 srb->ha = ha;
4027 srb->ddb = ddb_entry;
4028 srb->cmd = cmd;
4029 srb->flags = 0;
4030 CMD_SP(cmd) = (void *)srb;
4031
4032 return srb;
4033 }
4034
4035 static void qla4xxx_srb_free_dma(struct scsi_qla_host *ha, struct srb *srb)
4036 {
4037 struct scsi_cmnd *cmd = srb->cmd;
4038
4039 if (srb->flags & SRB_DMA_VALID) {
4040 scsi_dma_unmap(cmd);
4041 srb->flags &= ~SRB_DMA_VALID;
4042 }
4043 CMD_SP(cmd) = NULL;
4044 }
4045
4046 void qla4xxx_srb_compl(struct kref *ref)
4047 {
4048 struct srb *srb = container_of(ref, struct srb, srb_ref);
4049 struct scsi_cmnd *cmd = srb->cmd;
4050 struct scsi_qla_host *ha = srb->ha;
4051
4052 qla4xxx_srb_free_dma(ha, srb);
4053
4054 mempool_free(srb, ha->srb_mempool);
4055
4056 cmd->scsi_done(cmd);
4057 }
4058
4059 /**
4060 * qla4xxx_queuecommand - scsi layer issues scsi command to driver.
4061 * @host: scsi host
4062 * @cmd: Pointer to Linux's SCSI command structure
4063 *
4064 * Remarks:
4065 * This routine is invoked by Linux to send a SCSI command to the driver.
4066 * The mid-level driver tries to ensure that queuecommand never gets
4067 * invoked concurrently with itself or the interrupt handler (although
4068 * the interrupt handler may call this routine as part of request-
4069 * completion handling). Unfortunely, it sometimes calls the scheduler
4070 * in interrupt context which is a big NO! NO!.
4071 **/
4072 static int qla4xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
4073 {
4074 struct scsi_qla_host *ha = to_qla_host(host);
4075 struct ddb_entry *ddb_entry = cmd->device->hostdata;
4076 struct iscsi_cls_session *sess = ddb_entry->sess;
4077 struct srb *srb;
4078 int rval;
4079
4080 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
4081 if (test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags))
4082 cmd->result = DID_NO_CONNECT << 16;
4083 else
4084 cmd->result = DID_REQUEUE << 16;
4085 goto qc_fail_command;
4086 }
4087
4088 if (!sess) {
4089 cmd->result = DID_IMM_RETRY << 16;
4090 goto qc_fail_command;
4091 }
4092
4093 rval = iscsi_session_chkready(sess);
4094 if (rval) {
4095 cmd->result = rval;
4096 goto qc_fail_command;
4097 }
4098
4099 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
4100 test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) ||
4101 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
4102 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) ||
4103 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) ||
4104 !test_bit(AF_ONLINE, &ha->flags) ||
4105 !test_bit(AF_LINK_UP, &ha->flags) ||
4106 test_bit(AF_LOOPBACK, &ha->flags) ||
4107 test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags) ||
4108 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags) ||
4109 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))
4110 goto qc_host_busy;
4111
4112 srb = qla4xxx_get_new_srb(ha, ddb_entry, cmd);
4113 if (!srb)
4114 goto qc_host_busy;
4115
4116 rval = qla4xxx_send_command_to_isp(ha, srb);
4117 if (rval != QLA_SUCCESS)
4118 goto qc_host_busy_free_sp;
4119
4120 return 0;
4121
4122 qc_host_busy_free_sp:
4123 qla4xxx_srb_free_dma(ha, srb);
4124 mempool_free(srb, ha->srb_mempool);
4125
4126 qc_host_busy:
4127 return SCSI_MLQUEUE_HOST_BUSY;
4128
4129 qc_fail_command:
4130 cmd->scsi_done(cmd);
4131
4132 return 0;
4133 }
4134
4135 /**
4136 * qla4xxx_mem_free - frees memory allocated to adapter
4137 * @ha: Pointer to host adapter structure.
4138 *
4139 * Frees memory previously allocated by qla4xxx_mem_alloc
4140 **/
4141 static void qla4xxx_mem_free(struct scsi_qla_host *ha)
4142 {
4143 if (ha->queues)
4144 dma_free_coherent(&ha->pdev->dev, ha->queues_len, ha->queues,
4145 ha->queues_dma);
4146
4147 if (ha->fw_dump)
4148 vfree(ha->fw_dump);
4149
4150 ha->queues_len = 0;
4151 ha->queues = NULL;
4152 ha->queues_dma = 0;
4153 ha->request_ring = NULL;
4154 ha->request_dma = 0;
4155 ha->response_ring = NULL;
4156 ha->response_dma = 0;
4157 ha->shadow_regs = NULL;
4158 ha->shadow_regs_dma = 0;
4159 ha->fw_dump = NULL;
4160 ha->fw_dump_size = 0;
4161
4162 /* Free srb pool. */
4163 if (ha->srb_mempool)
4164 mempool_destroy(ha->srb_mempool);
4165
4166 ha->srb_mempool = NULL;
4167
4168 if (ha->chap_dma_pool)
4169 dma_pool_destroy(ha->chap_dma_pool);
4170
4171 if (ha->chap_list)
4172 vfree(ha->chap_list);
4173 ha->chap_list = NULL;
4174
4175 if (ha->fw_ddb_dma_pool)
4176 dma_pool_destroy(ha->fw_ddb_dma_pool);
4177
4178 /* release io space registers */
4179 if (is_qla8022(ha)) {
4180 if (ha->nx_pcibase)
4181 iounmap(
4182 (struct device_reg_82xx __iomem *)ha->nx_pcibase);
4183 } else if (is_qla8032(ha) || is_qla8042(ha)) {
4184 if (ha->nx_pcibase)
4185 iounmap(
4186 (struct device_reg_83xx __iomem *)ha->nx_pcibase);
4187 } else if (ha->reg) {
4188 iounmap(ha->reg);
4189 }
4190
4191 if (ha->reset_tmplt.buff)
4192 vfree(ha->reset_tmplt.buff);
4193
4194 pci_release_regions(ha->pdev);
4195 }
4196
4197 /**
4198 * qla4xxx_mem_alloc - allocates memory for use by adapter.
4199 * @ha: Pointer to host adapter structure
4200 *
4201 * Allocates DMA memory for request and response queues. Also allocates memory
4202 * for srbs.
4203 **/
4204 static int qla4xxx_mem_alloc(struct scsi_qla_host *ha)
4205 {
4206 unsigned long align;
4207
4208 /* Allocate contiguous block of DMA memory for queues. */
4209 ha->queues_len = ((REQUEST_QUEUE_DEPTH * QUEUE_SIZE) +
4210 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE) +
4211 sizeof(struct shadow_regs) +
4212 MEM_ALIGN_VALUE +
4213 (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
4214 ha->queues = dma_zalloc_coherent(&ha->pdev->dev, ha->queues_len,
4215 &ha->queues_dma, GFP_KERNEL);
4216 if (ha->queues == NULL) {
4217 ql4_printk(KERN_WARNING, ha,
4218 "Memory Allocation failed - queues.\n");
4219
4220 goto mem_alloc_error_exit;
4221 }
4222
4223 /*
4224 * As per RISC alignment requirements -- the bus-address must be a
4225 * multiple of the request-ring size (in bytes).
4226 */
4227 align = 0;
4228 if ((unsigned long)ha->queues_dma & (MEM_ALIGN_VALUE - 1))
4229 align = MEM_ALIGN_VALUE - ((unsigned long)ha->queues_dma &
4230 (MEM_ALIGN_VALUE - 1));
4231
4232 /* Update request and response queue pointers. */
4233 ha->request_dma = ha->queues_dma + align;
4234 ha->request_ring = (struct queue_entry *) (ha->queues + align);
4235 ha->response_dma = ha->queues_dma + align +
4236 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE);
4237 ha->response_ring = (struct queue_entry *) (ha->queues + align +
4238 (REQUEST_QUEUE_DEPTH *
4239 QUEUE_SIZE));
4240 ha->shadow_regs_dma = ha->queues_dma + align +
4241 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE) +
4242 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE);
4243 ha->shadow_regs = (struct shadow_regs *) (ha->queues + align +
4244 (REQUEST_QUEUE_DEPTH *
4245 QUEUE_SIZE) +
4246 (RESPONSE_QUEUE_DEPTH *
4247 QUEUE_SIZE));
4248
4249 /* Allocate memory for srb pool. */
4250 ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab,
4251 mempool_free_slab, srb_cachep);
4252 if (ha->srb_mempool == NULL) {
4253 ql4_printk(KERN_WARNING, ha,
4254 "Memory Allocation failed - SRB Pool.\n");
4255
4256 goto mem_alloc_error_exit;
4257 }
4258
4259 ha->chap_dma_pool = dma_pool_create("ql4_chap", &ha->pdev->dev,
4260 CHAP_DMA_BLOCK_SIZE, 8, 0);
4261
4262 if (ha->chap_dma_pool == NULL) {
4263 ql4_printk(KERN_WARNING, ha,
4264 "%s: chap_dma_pool allocation failed..\n", __func__);
4265 goto mem_alloc_error_exit;
4266 }
4267
4268 ha->fw_ddb_dma_pool = dma_pool_create("ql4_fw_ddb", &ha->pdev->dev,
4269 DDB_DMA_BLOCK_SIZE, 8, 0);
4270
4271 if (ha->fw_ddb_dma_pool == NULL) {
4272 ql4_printk(KERN_WARNING, ha,
4273 "%s: fw_ddb_dma_pool allocation failed..\n",
4274 __func__);
4275 goto mem_alloc_error_exit;
4276 }
4277
4278 return QLA_SUCCESS;
4279
4280 mem_alloc_error_exit:
4281 qla4xxx_mem_free(ha);
4282 return QLA_ERROR;
4283 }
4284
4285 /**
4286 * qla4_8xxx_check_temp - Check the ISP82XX temperature.
4287 * @ha: adapter block pointer.
4288 *
4289 * Note: The caller should not hold the idc lock.
4290 **/
4291 static int qla4_8xxx_check_temp(struct scsi_qla_host *ha)
4292 {
4293 uint32_t temp, temp_state, temp_val;
4294 int status = QLA_SUCCESS;
4295
4296 temp = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_TEMP_STATE);
4297
4298 temp_state = qla82xx_get_temp_state(temp);
4299 temp_val = qla82xx_get_temp_val(temp);
4300
4301 if (temp_state == QLA82XX_TEMP_PANIC) {
4302 ql4_printk(KERN_WARNING, ha, "Device temperature %d degrees C"
4303 " exceeds maximum allowed. Hardware has been shut"
4304 " down.\n", temp_val);
4305 status = QLA_ERROR;
4306 } else if (temp_state == QLA82XX_TEMP_WARN) {
4307 if (ha->temperature == QLA82XX_TEMP_NORMAL)
4308 ql4_printk(KERN_WARNING, ha, "Device temperature %d"
4309 " degrees C exceeds operating range."
4310 " Immediate action needed.\n", temp_val);
4311 } else {
4312 if (ha->temperature == QLA82XX_TEMP_WARN)
4313 ql4_printk(KERN_INFO, ha, "Device temperature is"
4314 " now %d degrees C in normal range.\n",
4315 temp_val);
4316 }
4317 ha->temperature = temp_state;
4318 return status;
4319 }
4320
4321 /**
4322 * qla4_8xxx_check_fw_alive - Check firmware health
4323 * @ha: Pointer to host adapter structure.
4324 *
4325 * Context: Interrupt
4326 **/
4327 static int qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha)
4328 {
4329 uint32_t fw_heartbeat_counter;
4330 int status = QLA_SUCCESS;
4331
4332 fw_heartbeat_counter = qla4_8xxx_rd_direct(ha,
4333 QLA8XXX_PEG_ALIVE_COUNTER);
4334 /* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */
4335 if (fw_heartbeat_counter == 0xffffffff) {
4336 DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Device in frozen "
4337 "state, QLA82XX_PEG_ALIVE_COUNTER is 0xffffffff\n",
4338 ha->host_no, __func__));
4339 return status;
4340 }
4341
4342 if (ha->fw_heartbeat_counter == fw_heartbeat_counter) {
4343 ha->seconds_since_last_heartbeat++;
4344 /* FW not alive after 2 seconds */
4345 if (ha->seconds_since_last_heartbeat == 2) {
4346 ha->seconds_since_last_heartbeat = 0;
4347 qla4_8xxx_dump_peg_reg(ha);
4348 status = QLA_ERROR;
4349 }
4350 } else
4351 ha->seconds_since_last_heartbeat = 0;
4352
4353 ha->fw_heartbeat_counter = fw_heartbeat_counter;
4354 return status;
4355 }
4356
4357 static void qla4_8xxx_process_fw_error(struct scsi_qla_host *ha)
4358 {
4359 uint32_t halt_status;
4360 int halt_status_unrecoverable = 0;
4361
4362 halt_status = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_HALT_STATUS1);
4363
4364 if (is_qla8022(ha)) {
4365 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
4366 __func__);
4367 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
4368 CRB_NIU_XG_PAUSE_CTL_P0 |
4369 CRB_NIU_XG_PAUSE_CTL_P1);
4370
4371 if (QLA82XX_FWERROR_CODE(halt_status) == 0x67)
4372 ql4_printk(KERN_ERR, ha, "%s: Firmware aborted with error code 0x00006700. Device is being reset\n",
4373 __func__);
4374 if (halt_status & HALT_STATUS_UNRECOVERABLE)
4375 halt_status_unrecoverable = 1;
4376 } else if (is_qla8032(ha) || is_qla8042(ha)) {
4377 if (halt_status & QLA83XX_HALT_STATUS_FW_RESET)
4378 ql4_printk(KERN_ERR, ha, "%s: Firmware error detected device is being reset\n",
4379 __func__);
4380 else if (halt_status & QLA83XX_HALT_STATUS_UNRECOVERABLE)
4381 halt_status_unrecoverable = 1;
4382 }
4383
4384 /*
4385 * Since we cannot change dev_state in interrupt context,
4386 * set appropriate DPC flag then wakeup DPC
4387 */
4388 if (halt_status_unrecoverable) {
4389 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags);
4390 } else {
4391 ql4_printk(KERN_INFO, ha, "%s: detect abort needed!\n",
4392 __func__);
4393 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4394 }
4395 qla4xxx_mailbox_premature_completion(ha);
4396 qla4xxx_wake_dpc(ha);
4397 }
4398
4399 /**
4400 * qla4_8xxx_watchdog - Poll dev state
4401 * @ha: Pointer to host adapter structure.
4402 *
4403 * Context: Interrupt
4404 **/
4405 void qla4_8xxx_watchdog(struct scsi_qla_host *ha)
4406 {
4407 uint32_t dev_state;
4408 uint32_t idc_ctrl;
4409
4410 if (is_qla8032(ha) &&
4411 (qla4_83xx_is_detached(ha) == QLA_SUCCESS))
4412 WARN_ONCE(1, "%s: iSCSI function %d marked invisible\n",
4413 __func__, ha->func_num);
4414
4415 /* don't poll if reset is going on */
4416 if (!(test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) ||
4417 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
4418 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags))) {
4419 dev_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE);
4420
4421 if (qla4_8xxx_check_temp(ha)) {
4422 if (is_qla8022(ha)) {
4423 ql4_printk(KERN_INFO, ha, "disabling pause transmit on port 0 & 1.\n");
4424 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
4425 CRB_NIU_XG_PAUSE_CTL_P0 |
4426 CRB_NIU_XG_PAUSE_CTL_P1);
4427 }
4428 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags);
4429 qla4xxx_wake_dpc(ha);
4430 } else if (dev_state == QLA8XXX_DEV_NEED_RESET &&
4431 !test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
4432
4433 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED RESET!\n",
4434 __func__);
4435
4436 if (is_qla8032(ha) || is_qla8042(ha)) {
4437 idc_ctrl = qla4_83xx_rd_reg(ha,
4438 QLA83XX_IDC_DRV_CTRL);
4439 if (!(idc_ctrl & GRACEFUL_RESET_BIT1)) {
4440 ql4_printk(KERN_INFO, ha, "%s: Graceful reset bit is not set\n",
4441 __func__);
4442 qla4xxx_mailbox_premature_completion(
4443 ha);
4444 }
4445 }
4446
4447 if ((is_qla8032(ha) || is_qla8042(ha)) ||
4448 (is_qla8022(ha) && !ql4xdontresethba)) {
4449 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4450 qla4xxx_wake_dpc(ha);
4451 }
4452 } else if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT &&
4453 !test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) {
4454 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED QUIES!\n",
4455 __func__);
4456 set_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags);
4457 qla4xxx_wake_dpc(ha);
4458 } else {
4459 /* Check firmware health */
4460 if (qla4_8xxx_check_fw_alive(ha))
4461 qla4_8xxx_process_fw_error(ha);
4462 }
4463 }
4464 }
4465
4466 static void qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)
4467 {
4468 struct iscsi_session *sess;
4469 struct ddb_entry *ddb_entry;
4470 struct scsi_qla_host *ha;
4471
4472 sess = cls_sess->dd_data;
4473 ddb_entry = sess->dd_data;
4474 ha = ddb_entry->ha;
4475
4476 if (!(ddb_entry->ddb_type == FLASH_DDB))
4477 return;
4478
4479 if (adapter_up(ha) && !test_bit(DF_RELOGIN, &ddb_entry->flags) &&
4480 !iscsi_is_session_online(cls_sess)) {
4481 if (atomic_read(&ddb_entry->retry_relogin_timer) !=
4482 INVALID_ENTRY) {
4483 if (atomic_read(&ddb_entry->retry_relogin_timer) ==
4484 0) {
4485 atomic_set(&ddb_entry->retry_relogin_timer,
4486 INVALID_ENTRY);
4487 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
4488 set_bit(DF_RELOGIN, &ddb_entry->flags);
4489 DEBUG2(ql4_printk(KERN_INFO, ha,
4490 "%s: index [%d] login device\n",
4491 __func__, ddb_entry->fw_ddb_index));
4492 } else
4493 atomic_dec(&ddb_entry->retry_relogin_timer);
4494 }
4495 }
4496
4497 /* Wait for relogin to timeout */
4498 if (atomic_read(&ddb_entry->relogin_timer) &&
4499 (atomic_dec_and_test(&ddb_entry->relogin_timer) != 0)) {
4500 /*
4501 * If the relogin times out and the device is
4502 * still NOT ONLINE then try and relogin again.
4503 */
4504 if (!iscsi_is_session_online(cls_sess)) {
4505 /* Reset retry relogin timer */
4506 atomic_inc(&ddb_entry->relogin_retry_count);
4507 DEBUG2(ql4_printk(KERN_INFO, ha,
4508 "%s: index[%d] relogin timed out-retrying"
4509 " relogin (%d), retry (%d)\n", __func__,
4510 ddb_entry->fw_ddb_index,
4511 atomic_read(&ddb_entry->relogin_retry_count),
4512 ddb_entry->default_time2wait + 4));
4513 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
4514 atomic_set(&ddb_entry->retry_relogin_timer,
4515 ddb_entry->default_time2wait + 4);
4516 }
4517 }
4518 }
4519
4520 /**
4521 * qla4xxx_timer - checks every second for work to do.
4522 * @ha: Pointer to host adapter structure.
4523 **/
4524 static void qla4xxx_timer(struct timer_list *t)
4525 {
4526 struct scsi_qla_host *ha = from_timer(ha, t, timer);
4527 int start_dpc = 0;
4528 uint16_t w;
4529
4530 iscsi_host_for_each_session(ha->host, qla4xxx_check_relogin_flash_ddb);
4531
4532 /* If we are in the middle of AER/EEH processing
4533 * skip any processing and reschedule the timer
4534 */
4535 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
4536 mod_timer(&ha->timer, jiffies + HZ);
4537 return;
4538 }
4539
4540 /* Hardware read to trigger an EEH error during mailbox waits. */
4541 if (!pci_channel_offline(ha->pdev))
4542 pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
4543
4544 if (is_qla80XX(ha))
4545 qla4_8xxx_watchdog(ha);
4546
4547 if (is_qla40XX(ha)) {
4548 /* Check for heartbeat interval. */
4549 if (ha->firmware_options & FWOPT_HEARTBEAT_ENABLE &&
4550 ha->heartbeat_interval != 0) {
4551 ha->seconds_since_last_heartbeat++;
4552 if (ha->seconds_since_last_heartbeat >
4553 ha->heartbeat_interval + 2)
4554 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4555 }
4556 }
4557
4558 /* Process any deferred work. */
4559 if (!list_empty(&ha->work_list))
4560 start_dpc++;
4561
4562 /* Wakeup the dpc routine for this adapter, if needed. */
4563 if (start_dpc ||
4564 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
4565 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags) ||
4566 test_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags) ||
4567 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) ||
4568 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
4569 test_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags) ||
4570 test_bit(DPC_LINK_CHANGED, &ha->dpc_flags) ||
4571 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) ||
4572 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) ||
4573 test_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags) ||
4574 test_bit(DPC_AEN, &ha->dpc_flags)) {
4575 DEBUG2(printk("scsi%ld: %s: scheduling dpc routine"
4576 " - dpc flags = 0x%lx\n",
4577 ha->host_no, __func__, ha->dpc_flags));
4578 qla4xxx_wake_dpc(ha);
4579 }
4580
4581 /* Reschedule timer thread to call us back in one second */
4582 mod_timer(&ha->timer, jiffies + HZ);
4583
4584 DEBUG2(ha->seconds_since_last_intr++);
4585 }
4586
4587 /**
4588 * qla4xxx_cmd_wait - waits for all outstanding commands to complete
4589 * @ha: Pointer to host adapter structure.
4590 *
4591 * This routine stalls the driver until all outstanding commands are returned.
4592 * Caller must release the Hardware Lock prior to calling this routine.
4593 **/
4594 static int qla4xxx_cmd_wait(struct scsi_qla_host *ha)
4595 {
4596 uint32_t index = 0;
4597 unsigned long flags;
4598 struct scsi_cmnd *cmd;
4599 unsigned long wtime;
4600 uint32_t wtmo;
4601
4602 if (is_qla40XX(ha))
4603 wtmo = WAIT_CMD_TOV;
4604 else
4605 wtmo = ha->nx_reset_timeout / 2;
4606
4607 wtime = jiffies + (wtmo * HZ);
4608
4609 DEBUG2(ql4_printk(KERN_INFO, ha,
4610 "Wait up to %u seconds for cmds to complete\n",
4611 wtmo));
4612
4613 while (!time_after_eq(jiffies, wtime)) {
4614 spin_lock_irqsave(&ha->hardware_lock, flags);
4615 /* Find a command that hasn't completed. */
4616 for (index = 0; index < ha->host->can_queue; index++) {
4617 cmd = scsi_host_find_tag(ha->host, index);
4618 /*
4619 * We cannot just check if the index is valid,
4620 * becase if we are run from the scsi eh, then
4621 * the scsi/block layer is going to prevent
4622 * the tag from being released.
4623 */
4624 if (cmd != NULL && CMD_SP(cmd))
4625 break;
4626 }
4627 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4628
4629 /* If No Commands are pending, wait is complete */
4630 if (index == ha->host->can_queue)
4631 return QLA_SUCCESS;
4632
4633 msleep(1000);
4634 }
4635 /* If we timed out on waiting for commands to come back
4636 * return ERROR. */
4637 return QLA_ERROR;
4638 }
4639
4640 int qla4xxx_hw_reset(struct scsi_qla_host *ha)
4641 {
4642 uint32_t ctrl_status;
4643 unsigned long flags = 0;
4644
4645 DEBUG2(printk(KERN_ERR "scsi%ld: %s\n", ha->host_no, __func__));
4646
4647 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS)
4648 return QLA_ERROR;
4649
4650 spin_lock_irqsave(&ha->hardware_lock, flags);
4651
4652 /*
4653 * If the SCSI Reset Interrupt bit is set, clear it.
4654 * Otherwise, the Soft Reset won't work.
4655 */
4656 ctrl_status = readw(&ha->reg->ctrl_status);
4657 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0)
4658 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status);
4659
4660 /* Issue Soft Reset */
4661 writel(set_rmask(CSR_SOFT_RESET), &ha->reg->ctrl_status);
4662 readl(&ha->reg->ctrl_status);
4663
4664 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4665 return QLA_SUCCESS;
4666 }
4667
4668 /**
4669 * qla4xxx_soft_reset - performs soft reset.
4670 * @ha: Pointer to host adapter structure.
4671 **/
4672 int qla4xxx_soft_reset(struct scsi_qla_host *ha)
4673 {
4674 uint32_t max_wait_time;
4675 unsigned long flags = 0;
4676 int status;
4677 uint32_t ctrl_status;
4678
4679 status = qla4xxx_hw_reset(ha);
4680 if (status != QLA_SUCCESS)
4681 return status;
4682
4683 status = QLA_ERROR;
4684 /* Wait until the Network Reset Intr bit is cleared */
4685 max_wait_time = RESET_INTR_TOV;
4686 do {
4687 spin_lock_irqsave(&ha->hardware_lock, flags);
4688 ctrl_status = readw(&ha->reg->ctrl_status);
4689 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4690
4691 if ((ctrl_status & CSR_NET_RESET_INTR) == 0)
4692 break;
4693
4694 msleep(1000);
4695 } while ((--max_wait_time));
4696
4697 if ((ctrl_status & CSR_NET_RESET_INTR) != 0) {
4698 DEBUG2(printk(KERN_WARNING
4699 "scsi%ld: Network Reset Intr not cleared by "
4700 "Network function, clearing it now!\n",
4701 ha->host_no));
4702 spin_lock_irqsave(&ha->hardware_lock, flags);
4703 writel(set_rmask(CSR_NET_RESET_INTR), &ha->reg->ctrl_status);
4704 readl(&ha->reg->ctrl_status);
4705 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4706 }
4707
4708 /* Wait until the firmware tells us the Soft Reset is done */
4709 max_wait_time = SOFT_RESET_TOV;
4710 do {
4711 spin_lock_irqsave(&ha->hardware_lock, flags);
4712 ctrl_status = readw(&ha->reg->ctrl_status);
4713 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4714
4715 if ((ctrl_status & CSR_SOFT_RESET) == 0) {
4716 status = QLA_SUCCESS;
4717 break;
4718 }
4719
4720 msleep(1000);
4721 } while ((--max_wait_time));
4722
4723 /*
4724 * Also, make sure that the SCSI Reset Interrupt bit has been cleared
4725 * after the soft reset has taken place.
4726 */
4727 spin_lock_irqsave(&ha->hardware_lock, flags);
4728 ctrl_status = readw(&ha->reg->ctrl_status);
4729 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) {
4730 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status);
4731 readl(&ha->reg->ctrl_status);
4732 }
4733 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4734
4735 /* If soft reset fails then most probably the bios on other
4736 * function is also enabled.
4737 * Since the initialization is sequential the other fn
4738 * wont be able to acknowledge the soft reset.
4739 * Issue a force soft reset to workaround this scenario.
4740 */
4741 if (max_wait_time == 0) {
4742 /* Issue Force Soft Reset */
4743 spin_lock_irqsave(&ha->hardware_lock, flags);
4744 writel(set_rmask(CSR_FORCE_SOFT_RESET), &ha->reg->ctrl_status);
4745 readl(&ha->reg->ctrl_status);
4746 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4747 /* Wait until the firmware tells us the Soft Reset is done */
4748 max_wait_time = SOFT_RESET_TOV;
4749 do {
4750 spin_lock_irqsave(&ha->hardware_lock, flags);
4751 ctrl_status = readw(&ha->reg->ctrl_status);
4752 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4753
4754 if ((ctrl_status & CSR_FORCE_SOFT_RESET) == 0) {
4755 status = QLA_SUCCESS;
4756 break;
4757 }
4758
4759 msleep(1000);
4760 } while ((--max_wait_time));
4761 }
4762
4763 return status;
4764 }
4765
4766 /**
4767 * qla4xxx_abort_active_cmds - returns all outstanding i/o requests to O.S.
4768 * @ha: Pointer to host adapter structure.
4769 * @res: returned scsi status
4770 *
4771 * This routine is called just prior to a HARD RESET to return all
4772 * outstanding commands back to the Operating System.
4773 * Caller should make sure that the following locks are released
4774 * before this calling routine: Hardware lock, and io_request_lock.
4775 **/
4776 static void qla4xxx_abort_active_cmds(struct scsi_qla_host *ha, int res)
4777 {
4778 struct srb *srb;
4779 int i;
4780 unsigned long flags;
4781
4782 spin_lock_irqsave(&ha->hardware_lock, flags);
4783 for (i = 0; i < ha->host->can_queue; i++) {
4784 srb = qla4xxx_del_from_active_array(ha, i);
4785 if (srb != NULL) {
4786 srb->cmd->result = res;
4787 kref_put(&srb->srb_ref, qla4xxx_srb_compl);
4788 }
4789 }
4790 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4791 }
4792
4793 void qla4xxx_dead_adapter_cleanup(struct scsi_qla_host *ha)
4794 {
4795 clear_bit(AF_ONLINE, &ha->flags);
4796
4797 /* Disable the board */
4798 ql4_printk(KERN_INFO, ha, "Disabling the board\n");
4799
4800 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
4801 qla4xxx_mark_all_devices_missing(ha);
4802 clear_bit(AF_INIT_DONE, &ha->flags);
4803 }
4804
4805 static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session)
4806 {
4807 struct iscsi_session *sess;
4808 struct ddb_entry *ddb_entry;
4809
4810 sess = cls_session->dd_data;
4811 ddb_entry = sess->dd_data;
4812 ddb_entry->fw_ddb_device_state = DDB_DS_SESSION_FAILED;
4813
4814 if (ddb_entry->ddb_type == FLASH_DDB)
4815 iscsi_block_session(ddb_entry->sess);
4816 else
4817 iscsi_session_failure(cls_session->dd_data,
4818 ISCSI_ERR_CONN_FAILED);
4819 }
4820
4821 /**
4822 * qla4xxx_recover_adapter - recovers adapter after a fatal error
4823 * @ha: Pointer to host adapter structure.
4824 **/
4825 static int qla4xxx_recover_adapter(struct scsi_qla_host *ha)
4826 {
4827 int status = QLA_ERROR;
4828 uint8_t reset_chip = 0;
4829 uint32_t dev_state;
4830 unsigned long wait;
4831
4832 /* Stall incoming I/O until we are done */
4833 scsi_block_requests(ha->host);
4834 clear_bit(AF_ONLINE, &ha->flags);
4835 clear_bit(AF_LINK_UP, &ha->flags);
4836
4837 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: adapter OFFLINE\n", __func__));
4838
4839 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
4840
4841 if ((is_qla8032(ha) || is_qla8042(ha)) &&
4842 !test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) {
4843 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
4844 __func__);
4845 /* disable pause frame for ISP83xx */
4846 qla4_83xx_disable_pause(ha);
4847 }
4848
4849 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session);
4850
4851 if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
4852 reset_chip = 1;
4853
4854 /* For the DPC_RESET_HA_INTR case (ISP-4xxx specific)
4855 * do not reset adapter, jump to initialize_adapter */
4856 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
4857 status = QLA_SUCCESS;
4858 goto recover_ha_init_adapter;
4859 }
4860
4861 /* For the ISP-8xxx adapter, issue a stop_firmware if invoked
4862 * from eh_host_reset or ioctl module */
4863 if (is_qla80XX(ha) && !reset_chip &&
4864 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) {
4865
4866 DEBUG2(ql4_printk(KERN_INFO, ha,
4867 "scsi%ld: %s - Performing stop_firmware...\n",
4868 ha->host_no, __func__));
4869 status = ha->isp_ops->reset_firmware(ha);
4870 if (status == QLA_SUCCESS) {
4871 ha->isp_ops->disable_intrs(ha);
4872 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
4873 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
4874 } else {
4875 /* If the stop_firmware fails then
4876 * reset the entire chip */
4877 reset_chip = 1;
4878 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
4879 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4880 }
4881 }
4882
4883 /* Issue full chip reset if recovering from a catastrophic error,
4884 * or if stop_firmware fails for ISP-8xxx.
4885 * This is the default case for ISP-4xxx */
4886 if (is_qla40XX(ha) || reset_chip) {
4887 if (is_qla40XX(ha))
4888 goto chip_reset;
4889
4890 /* Check if 8XXX firmware is alive or not
4891 * We may have arrived here from NEED_RESET
4892 * detection only */
4893 if (test_bit(AF_FW_RECOVERY, &ha->flags))
4894 goto chip_reset;
4895
4896 wait = jiffies + (FW_ALIVE_WAIT_TOV * HZ);
4897 while (time_before(jiffies, wait)) {
4898 if (qla4_8xxx_check_fw_alive(ha)) {
4899 qla4xxx_mailbox_premature_completion(ha);
4900 break;
4901 }
4902
4903 set_current_state(TASK_UNINTERRUPTIBLE);
4904 schedule_timeout(HZ);
4905 }
4906 chip_reset:
4907 if (!test_bit(AF_FW_RECOVERY, &ha->flags))
4908 qla4xxx_cmd_wait(ha);
4909
4910 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
4911 DEBUG2(ql4_printk(KERN_INFO, ha,
4912 "scsi%ld: %s - Performing chip reset..\n",
4913 ha->host_no, __func__));
4914 status = ha->isp_ops->reset_chip(ha);
4915 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
4916 }
4917
4918 /* Flush any pending ddb changed AENs */
4919 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
4920
4921 recover_ha_init_adapter:
4922 /* Upon successful firmware/chip reset, re-initialize the adapter */
4923 if (status == QLA_SUCCESS) {
4924 /* For ISP-4xxx, force function 1 to always initialize
4925 * before function 3 to prevent both funcions from
4926 * stepping on top of the other */
4927 if (is_qla40XX(ha) && (ha->mac_index == 3))
4928 ssleep(6);
4929
4930 /* NOTE: AF_ONLINE flag set upon successful completion of
4931 * qla4xxx_initialize_adapter */
4932 status = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
4933 if (is_qla80XX(ha) && (status == QLA_ERROR)) {
4934 status = qla4_8xxx_check_init_adapter_retry(ha);
4935 if (status == QLA_ERROR) {
4936 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Don't retry recover adapter\n",
4937 ha->host_no, __func__);
4938 qla4xxx_dead_adapter_cleanup(ha);
4939 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
4940 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
4941 clear_bit(DPC_RESET_HA_FW_CONTEXT,
4942 &ha->dpc_flags);
4943 goto exit_recover;
4944 }
4945 }
4946 }
4947
4948 /* Retry failed adapter initialization, if necessary
4949 * Do not retry initialize_adapter for RESET_HA_INTR (ISP-4xxx specific)
4950 * case to prevent ping-pong resets between functions */
4951 if (!test_bit(AF_ONLINE, &ha->flags) &&
4952 !test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
4953 /* Adapter initialization failed, see if we can retry
4954 * resetting the ha.
4955 * Since we don't want to block the DPC for too long
4956 * with multiple resets in the same thread,
4957 * utilize DPC to retry */
4958 if (is_qla80XX(ha)) {
4959 ha->isp_ops->idc_lock(ha);
4960 dev_state = qla4_8xxx_rd_direct(ha,
4961 QLA8XXX_CRB_DEV_STATE);
4962 ha->isp_ops->idc_unlock(ha);
4963 if (dev_state == QLA8XXX_DEV_FAILED) {
4964 ql4_printk(KERN_INFO, ha, "%s: don't retry "
4965 "recover adapter. H/W is in Failed "
4966 "state\n", __func__);
4967 qla4xxx_dead_adapter_cleanup(ha);
4968 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
4969 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
4970 clear_bit(DPC_RESET_HA_FW_CONTEXT,
4971 &ha->dpc_flags);
4972 status = QLA_ERROR;
4973
4974 goto exit_recover;
4975 }
4976 }
4977
4978 if (!test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags)) {
4979 ha->retry_reset_ha_cnt = MAX_RESET_HA_RETRIES;
4980 DEBUG2(printk("scsi%ld: recover adapter - retrying "
4981 "(%d) more times\n", ha->host_no,
4982 ha->retry_reset_ha_cnt));
4983 set_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
4984 status = QLA_ERROR;
4985 } else {
4986 if (ha->retry_reset_ha_cnt > 0) {
4987 /* Schedule another Reset HA--DPC will retry */
4988 ha->retry_reset_ha_cnt--;
4989 DEBUG2(printk("scsi%ld: recover adapter - "
4990 "retry remaining %d\n",
4991 ha->host_no,
4992 ha->retry_reset_ha_cnt));
4993 status = QLA_ERROR;
4994 }
4995
4996 if (ha->retry_reset_ha_cnt == 0) {
4997 /* Recover adapter retries have been exhausted.
4998 * Adapter DEAD */
4999 DEBUG2(printk("scsi%ld: recover adapter "
5000 "failed - board disabled\n",
5001 ha->host_no));
5002 qla4xxx_dead_adapter_cleanup(ha);
5003 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
5004 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
5005 clear_bit(DPC_RESET_HA_FW_CONTEXT,
5006 &ha->dpc_flags);
5007 status = QLA_ERROR;
5008 }
5009 }
5010 } else {
5011 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
5012 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
5013 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
5014 }
5015
5016 exit_recover:
5017 ha->adapter_error_count++;
5018
5019 if (test_bit(AF_ONLINE, &ha->flags))
5020 ha->isp_ops->enable_intrs(ha);
5021
5022 scsi_unblock_requests(ha->host);
5023
5024 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
5025 DEBUG2(printk("scsi%ld: recover adapter: %s\n", ha->host_no,
5026 status == QLA_ERROR ? "FAILED" : "SUCCEEDED"));
5027
5028 return status;
5029 }
5030
5031 static void qla4xxx_relogin_devices(struct iscsi_cls_session *cls_session)
5032 {
5033 struct iscsi_session *sess;
5034 struct ddb_entry *ddb_entry;
5035 struct scsi_qla_host *ha;
5036
5037 sess = cls_session->dd_data;
5038 ddb_entry = sess->dd_data;
5039 ha = ddb_entry->ha;
5040 if (!iscsi_is_session_online(cls_session)) {
5041 if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) {
5042 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5043 " unblock session\n", ha->host_no, __func__,
5044 ddb_entry->fw_ddb_index);
5045 iscsi_unblock_session(ddb_entry->sess);
5046 } else {
5047 /* Trigger relogin */
5048 if (ddb_entry->ddb_type == FLASH_DDB) {
5049 if (!(test_bit(DF_RELOGIN, &ddb_entry->flags) ||
5050 test_bit(DF_DISABLE_RELOGIN,
5051 &ddb_entry->flags)))
5052 qla4xxx_arm_relogin_timer(ddb_entry);
5053 } else
5054 iscsi_session_failure(cls_session->dd_data,
5055 ISCSI_ERR_CONN_FAILED);
5056 }
5057 }
5058 }
5059
5060 int qla4xxx_unblock_flash_ddb(struct iscsi_cls_session *cls_session)
5061 {
5062 struct iscsi_session *sess;
5063 struct ddb_entry *ddb_entry;
5064 struct scsi_qla_host *ha;
5065
5066 sess = cls_session->dd_data;
5067 ddb_entry = sess->dd_data;
5068 ha = ddb_entry->ha;
5069 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
5073 iscsi_unblock_session(ddb_entry->sess);
5074
5075 /* Start scan target */
5076 if (test_bit(AF_ONLINE, &ha->flags)) {
5077 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5078 " start scan\n", ha->host_no, __func__,
5079 ddb_entry->fw_ddb_index);
5080 scsi_queue_work(ha->host, &ddb_entry->sess->scan_work);
5081 }
5082 return QLA_SUCCESS;
5083 }
5084
5085 int qla4xxx_unblock_ddb(struct iscsi_cls_session *cls_session)
5086 {
5087 struct iscsi_session *sess;
5088 struct ddb_entry *ddb_entry;
5089 struct scsi_qla_host *ha;
5090 int status = QLA_SUCCESS;
5091
5092 sess = cls_session->dd_data;
5093 ddb_entry = sess->dd_data;
5094 ha = ddb_entry->ha;
5095 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5096 " unblock user space session\n", ha->host_no, __func__,
5097 ddb_entry->fw_ddb_index);
5098
5099 if (!iscsi_is_session_online(cls_session)) {
5100 iscsi_conn_start(ddb_entry->conn);
5101 iscsi_conn_login_event(ddb_entry->conn,
5102 ISCSI_CONN_STATE_LOGGED_IN);
5103 } else {
5104 ql4_printk(KERN_INFO, ha,
5105 "scsi%ld: %s: ddb[%d] session [%d] already logged in\n",
5106 ha->host_no, __func__, ddb_entry->fw_ddb_index,
5107 cls_session->sid);
5108 status = QLA_ERROR;
5109 }
5110
5111 return status;
5112 }
5113
5114 static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha)
5115 {
5116 iscsi_host_for_each_session(ha->host, qla4xxx_relogin_devices);
5117 }
5118
5119 static void qla4xxx_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)
5120 {
5121 uint16_t relogin_timer;
5122 struct iscsi_session *sess;
5123 struct ddb_entry *ddb_entry;
5124 struct scsi_qla_host *ha;
5125
5126 sess = cls_sess->dd_data;
5127 ddb_entry = sess->dd_data;
5128 ha = ddb_entry->ha;
5129
5130 relogin_timer = max(ddb_entry->default_relogin_timeout,
5131 (uint16_t)RELOGIN_TOV);
5132 atomic_set(&ddb_entry->relogin_timer, relogin_timer);
5133
5134 DEBUG2(ql4_printk(KERN_INFO, ha,
5135 "scsi%ld: Relogin index [%d]. TOV=%d\n", ha->host_no,
5136 ddb_entry->fw_ddb_index, relogin_timer));
5137
5138 qla4xxx_login_flash_ddb(cls_sess);
5139 }
5140
5141 static void qla4xxx_dpc_relogin(struct iscsi_cls_session *cls_sess)
5142 {
5143 struct iscsi_session *sess;
5144 struct ddb_entry *ddb_entry;
5145 struct scsi_qla_host *ha;
5146
5147 sess = cls_sess->dd_data;
5148 ddb_entry = sess->dd_data;
5149 ha = ddb_entry->ha;
5150
5151 if (!(ddb_entry->ddb_type == FLASH_DDB))
5152 return;
5153
5154 if (test_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags))
5155 return;
5156
5157 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags) &&
5158 !iscsi_is_session_online(cls_sess)) {
5159 DEBUG2(ql4_printk(KERN_INFO, ha,
5160 "relogin issued\n"));
5161 qla4xxx_relogin_flash_ddb(cls_sess);
5162 }
5163 }
5164
5165 void qla4xxx_wake_dpc(struct scsi_qla_host *ha)
5166 {
5167 if (ha->dpc_thread)
5168 queue_work(ha->dpc_thread, &ha->dpc_work);
5169 }
5170
5171 static struct qla4_work_evt *
5172 qla4xxx_alloc_work(struct scsi_qla_host *ha, uint32_t data_size,
5173 enum qla4_work_type type)
5174 {
5175 struct qla4_work_evt *e;
5176 uint32_t size = sizeof(struct qla4_work_evt) + data_size;
5177
5178 e = kzalloc(size, GFP_ATOMIC);
5179 if (!e)
5180 return NULL;
5181
5182 INIT_LIST_HEAD(&e->list);
5183 e->type = type;
5184 return e;
5185 }
5186
5187 static void qla4xxx_post_work(struct scsi_qla_host *ha,
5188 struct qla4_work_evt *e)
5189 {
5190 unsigned long flags;
5191
5192 spin_lock_irqsave(&ha->work_lock, flags);
5193 list_add_tail(&e->list, &ha->work_list);
5194 spin_unlock_irqrestore(&ha->work_lock, flags);
5195 qla4xxx_wake_dpc(ha);
5196 }
5197
5198 int qla4xxx_post_aen_work(struct scsi_qla_host *ha,
5199 enum iscsi_host_event_code aen_code,
5200 uint32_t data_size, uint8_t *data)
5201 {
5202 struct qla4_work_evt *e;
5203
5204 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_AEN);
5205 if (!e)
5206 return QLA_ERROR;
5207
5208 e->u.aen.code = aen_code;
5209 e->u.aen.data_size = data_size;
5210 memcpy(e->u.aen.data, data, data_size);
5211
5212 qla4xxx_post_work(ha, e);
5213
5214 return QLA_SUCCESS;
5215 }
5216
5217 int qla4xxx_post_ping_evt_work(struct scsi_qla_host *ha,
5218 uint32_t status, uint32_t pid,
5219 uint32_t data_size, uint8_t *data)
5220 {
5221 struct qla4_work_evt *e;
5222
5223 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_PING_STATUS);
5224 if (!e)
5225 return QLA_ERROR;
5226
5227 e->u.ping.status = status;
5228 e->u.ping.pid = pid;
5229 e->u.ping.data_size = data_size;
5230 memcpy(e->u.ping.data, data, data_size);
5231
5232 qla4xxx_post_work(ha, e);
5233
5234 return QLA_SUCCESS;
5235 }
5236
5237 static void qla4xxx_do_work(struct scsi_qla_host *ha)
5238 {
5239 struct qla4_work_evt *e, *tmp;
5240 unsigned long flags;
5241 LIST_HEAD(work);
5242
5243 spin_lock_irqsave(&ha->work_lock, flags);
5244 list_splice_init(&ha->work_list, &work);
5245 spin_unlock_irqrestore(&ha->work_lock, flags);
5246
5247 list_for_each_entry_safe(e, tmp, &work, list) {
5248 list_del_init(&e->list);
5249
5250 switch (e->type) {
5251 case QLA4_EVENT_AEN:
5252 iscsi_post_host_event(ha->host_no,
5253 &qla4xxx_iscsi_transport,
5254 e->u.aen.code,
5255 e->u.aen.data_size,
5256 e->u.aen.data);
5257 break;
5258 case QLA4_EVENT_PING_STATUS:
5259 iscsi_ping_comp_event(ha->host_no,
5260 &qla4xxx_iscsi_transport,
5261 e->u.ping.status,
5262 e->u.ping.pid,
5263 e->u.ping.data_size,
5264 e->u.ping.data);
5265 break;
5266 default:
5267 ql4_printk(KERN_WARNING, ha, "event type: 0x%x not "
5268 "supported", e->type);
5269 }
5270 kfree(e);
5271 }
5272 }
5273
5274 /**
5275 * qla4xxx_do_dpc - dpc routine
5276 * @data: in our case pointer to adapter structure
5277 *
5278 * This routine is a task that is schedule by the interrupt handler
5279 * to perform the background processing for interrupts. We put it
5280 * on a task queue that is consumed whenever the scheduler runs; that's
5281 * so you can do anything (i.e. put the process to sleep etc). In fact,
5282 * the mid-level tries to sleep when it reaches the driver threshold
5283 * "host->can_queue". This can cause a panic if we were in our interrupt code.
5284 **/
5285 static void qla4xxx_do_dpc(struct work_struct *work)
5286 {
5287 struct scsi_qla_host *ha =
5288 container_of(work, struct scsi_qla_host, dpc_work);
5289 int status = QLA_ERROR;
5290
5291 DEBUG2(ql4_printk(KERN_INFO, ha,
5292 "scsi%ld: %s: DPC handler waking up. flags = 0x%08lx, dpc_flags = 0x%08lx\n",
5293 ha->host_no, __func__, ha->flags, ha->dpc_flags));
5294
5295 /* Initialization not yet finished. Don't do anything yet. */
5296 if (!test_bit(AF_INIT_DONE, &ha->flags))
5297 return;
5298
5299 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
5300 DEBUG2(printk(KERN_INFO "scsi%ld: %s: flags = %lx\n",
5301 ha->host_no, __func__, ha->flags));
5302 return;
5303 }
5304
5305 /* post events to application */
5306 qla4xxx_do_work(ha);
5307
5308 if (is_qla80XX(ha)) {
5309 if (test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags)) {
5310 if (is_qla8032(ha) || is_qla8042(ha)) {
5311 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
5312 __func__);
5313 /* disable pause frame for ISP83xx */
5314 qla4_83xx_disable_pause(ha);
5315 }
5316
5317 ha->isp_ops->idc_lock(ha);
5318 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
5319 QLA8XXX_DEV_FAILED);
5320 ha->isp_ops->idc_unlock(ha);
5321 ql4_printk(KERN_INFO, ha, "HW State: FAILED\n");
5322 qla4_8xxx_device_state_handler(ha);
5323 }
5324
5325 if (test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags)) {
5326 if (is_qla8042(ha)) {
5327 if (ha->idc_info.info2 &
5328 ENABLE_INTERNAL_LOOPBACK) {
5329 ql4_printk(KERN_INFO, ha, "%s: Disabling ACB\n",
5330 __func__);
5331 status = qla4_84xx_config_acb(ha,
5332 ACB_CONFIG_DISABLE);
5333 if (status != QLA_SUCCESS) {
5334 ql4_printk(KERN_INFO, ha, "%s: ACB config failed\n",
5335 __func__);
5336 }
5337 }
5338 }
5339 qla4_83xx_post_idc_ack(ha);
5340 clear_bit(DPC_POST_IDC_ACK, &ha->dpc_flags);
5341 }
5342
5343 if (is_qla8042(ha) &&
5344 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags)) {
5345 ql4_printk(KERN_INFO, ha, "%s: Restoring ACB\n",
5346 __func__);
5347 if (qla4_84xx_config_acb(ha, ACB_CONFIG_SET) !=
5348 QLA_SUCCESS) {
5349 ql4_printk(KERN_INFO, ha, "%s: ACB config failed ",
5350 __func__);
5351 }
5352 clear_bit(DPC_RESTORE_ACB, &ha->dpc_flags);
5353 }
5354
5355 if (test_and_clear_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) {
5356 qla4_8xxx_need_qsnt_handler(ha);
5357 }
5358 }
5359
5360 if (!test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) &&
5361 (test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
5362 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
5363 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))) {
5364 if ((is_qla8022(ha) && ql4xdontresethba) ||
5365 ((is_qla8032(ha) || is_qla8042(ha)) &&
5366 qla4_83xx_idc_dontreset(ha))) {
5367 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n",
5368 ha->host_no, __func__));
5369 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
5370 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags);
5371 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
5372 goto dpc_post_reset_ha;
5373 }
5374 if (test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) ||
5375 test_bit(DPC_RESET_HA, &ha->dpc_flags))
5376 qla4xxx_recover_adapter(ha);
5377
5378 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
5379 uint8_t wait_time = RESET_INTR_TOV;
5380
5381 while ((readw(&ha->reg->ctrl_status) &
5382 (CSR_SOFT_RESET | CSR_FORCE_SOFT_RESET)) != 0) {
5383 if (--wait_time == 0)
5384 break;
5385 msleep(1000);
5386 }
5387 if (wait_time == 0)
5388 DEBUG2(printk("scsi%ld: %s: SR|FSR "
5389 "bit not cleared-- resetting\n",
5390 ha->host_no, __func__));
5391 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
5392 if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS) {
5393 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
5394 status = qla4xxx_recover_adapter(ha);
5395 }
5396 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags);
5397 if (status == QLA_SUCCESS)
5398 ha->isp_ops->enable_intrs(ha);
5399 }
5400 }
5401
5402 dpc_post_reset_ha:
5403 /* ---- process AEN? --- */
5404 if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags))
5405 qla4xxx_process_aen(ha, PROCESS_ALL_AENS);
5406
5407 /* ---- Get DHCP IP Address? --- */
5408 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags))
5409 qla4xxx_get_dhcp_ip_address(ha);
5410
5411 /* ---- relogin device? --- */
5412 if (adapter_up(ha) &&
5413 test_and_clear_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags)) {
5414 iscsi_host_for_each_session(ha->host, qla4xxx_dpc_relogin);
5415 }
5416
5417 /* ---- link change? --- */
5418 if (!test_bit(AF_LOOPBACK, &ha->flags) &&
5419 test_and_clear_bit(DPC_LINK_CHANGED, &ha->dpc_flags)) {
5420 if (!test_bit(AF_LINK_UP, &ha->flags)) {
5421 /* ---- link down? --- */
5422 qla4xxx_mark_all_devices_missing(ha);
5423 } else {
5424 /* ---- link up? --- *
5425 * F/W will auto login to all devices ONLY ONCE after
5426 * link up during driver initialization and runtime
5427 * fatal error recovery. Therefore, the driver must
5428 * manually relogin to devices when recovering from
5429 * connection failures, logouts, expired KATO, etc. */
5430 if (test_and_clear_bit(AF_BUILD_DDB_LIST, &ha->flags)) {
5431 qla4xxx_build_ddb_list(ha, ha->is_reset);
5432 iscsi_host_for_each_session(ha->host,
5433 qla4xxx_login_flash_ddb);
5434 } else
5435 qla4xxx_relogin_all_devices(ha);
5436 }
5437 }
5438 if (test_and_clear_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags)) {
5439 if (qla4xxx_sysfs_ddb_export(ha))
5440 ql4_printk(KERN_ERR, ha, "%s: Error exporting ddb to sysfs\n",
5441 __func__);
5442 }
5443 }
5444
5445 /**
5446 * qla4xxx_free_adapter - release the adapter
5447 * @ha: pointer to adapter structure
5448 **/
5449 static void qla4xxx_free_adapter(struct scsi_qla_host *ha)
5450 {
5451 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
5452
5453 /* Turn-off interrupts on the card. */
5454 ha->isp_ops->disable_intrs(ha);
5455
5456 if (is_qla40XX(ha)) {
5457 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR),
5458 &ha->reg->ctrl_status);
5459 readl(&ha->reg->ctrl_status);
5460 } else if (is_qla8022(ha)) {
5461 writel(0, &ha->qla4_82xx_reg->host_int);
5462 readl(&ha->qla4_82xx_reg->host_int);
5463 } else if (is_qla8032(ha) || is_qla8042(ha)) {
5464 writel(0, &ha->qla4_83xx_reg->risc_intr);
5465 readl(&ha->qla4_83xx_reg->risc_intr);
5466 }
5467
5468 /* Remove timer thread, if present */
5469 if (ha->timer_active)
5470 qla4xxx_stop_timer(ha);
5471
5472 /* Kill the kernel thread for this host */
5473 if (ha->dpc_thread)
5474 destroy_workqueue(ha->dpc_thread);
5475
5476 /* Kill the kernel thread for this host */
5477 if (ha->task_wq)
5478 destroy_workqueue(ha->task_wq);
5479
5480 /* Put firmware in known state */
5481 ha->isp_ops->reset_firmware(ha);
5482
5483 if (is_qla80XX(ha)) {
5484 ha->isp_ops->idc_lock(ha);
5485 qla4_8xxx_clear_drv_active(ha);
5486 ha->isp_ops->idc_unlock(ha);
5487 }
5488
5489 /* Detach interrupts */
5490 qla4xxx_free_irqs(ha);
5491
5492 /* free extra memory */
5493 qla4xxx_mem_free(ha);
5494 }
5495
5496 int qla4_8xxx_iospace_config(struct scsi_qla_host *ha)
5497 {
5498 int status = 0;
5499 unsigned long mem_base, mem_len, db_base, db_len;
5500 struct pci_dev *pdev = ha->pdev;
5501
5502 status = pci_request_regions(pdev, DRIVER_NAME);
5503 if (status) {
5504 printk(KERN_WARNING
5505 "scsi(%ld) Failed to reserve PIO regions (%s) "
5506 "status=%d\n", ha->host_no, pci_name(pdev), status);
5507 goto iospace_error_exit;
5508 }
5509
5510 DEBUG2(printk(KERN_INFO "%s: revision-id=%d\n",
5511 __func__, pdev->revision));
5512 ha->revision_id = pdev->revision;
5513
5514 /* remap phys address */
5515 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
5516 mem_len = pci_resource_len(pdev, 0);
5517 DEBUG2(printk(KERN_INFO "%s: ioremap from %lx a size of %lx\n",
5518 __func__, mem_base, mem_len));
5519
5520 /* mapping of pcibase pointer */
5521 ha->nx_pcibase = (unsigned long)ioremap(mem_base, mem_len);
5522 if (!ha->nx_pcibase) {
5523 printk(KERN_ERR
5524 "cannot remap MMIO (%s), aborting\n", pci_name(pdev));
5525 pci_release_regions(ha->pdev);
5526 goto iospace_error_exit;
5527 }
5528
5529 /* Mapping of IO base pointer, door bell read and write pointer */
5530
5531 /* mapping of IO base pointer */
5532 if (is_qla8022(ha)) {
5533 ha->qla4_82xx_reg = (struct device_reg_82xx __iomem *)
5534 ((uint8_t *)ha->nx_pcibase + 0xbc000 +
5535 (ha->pdev->devfn << 11));
5536 ha->nx_db_wr_ptr = (ha->pdev->devfn == 4 ? QLA82XX_CAM_RAM_DB1 :
5537 QLA82XX_CAM_RAM_DB2);
5538 } else if (is_qla8032(ha) || is_qla8042(ha)) {
5539 ha->qla4_83xx_reg = (struct device_reg_83xx __iomem *)
5540 ((uint8_t *)ha->nx_pcibase);
5541 }
5542
5543 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
5544 db_len = pci_resource_len(pdev, 4);
5545
5546 return 0;
5547 iospace_error_exit:
5548 return -ENOMEM;
5549 }
5550
5551 /***
5552 * qla4xxx_iospace_config - maps registers
5553 * @ha: pointer to adapter structure
5554 *
5555 * This routines maps HBA's registers from the pci address space
5556 * into the kernel virtual address space for memory mapped i/o.
5557 **/
5558 int qla4xxx_iospace_config(struct scsi_qla_host *ha)
5559 {
5560 unsigned long pio, pio_len, pio_flags;
5561 unsigned long mmio, mmio_len, mmio_flags;
5562
5563 pio = pci_resource_start(ha->pdev, 0);
5564 pio_len = pci_resource_len(ha->pdev, 0);
5565 pio_flags = pci_resource_flags(ha->pdev, 0);
5566 if (pio_flags & IORESOURCE_IO) {
5567 if (pio_len < MIN_IOBASE_LEN) {
5568 ql4_printk(KERN_WARNING, ha,
5569 "Invalid PCI I/O region size\n");
5570 pio = 0;
5571 }
5572 } else {
5573 ql4_printk(KERN_WARNING, ha, "region #0 not a PIO resource\n");
5574 pio = 0;
5575 }
5576
5577 /* Use MMIO operations for all accesses. */
5578 mmio = pci_resource_start(ha->pdev, 1);
5579 mmio_len = pci_resource_len(ha->pdev, 1);
5580 mmio_flags = pci_resource_flags(ha->pdev, 1);
5581
5582 if (!(mmio_flags & IORESOURCE_MEM)) {
5583 ql4_printk(KERN_ERR, ha,
5584 "region #0 not an MMIO resource, aborting\n");
5585
5586 goto iospace_error_exit;
5587 }
5588
5589 if (mmio_len < MIN_IOBASE_LEN) {
5590 ql4_printk(KERN_ERR, ha,
5591 "Invalid PCI mem region size, aborting\n");
5592 goto iospace_error_exit;
5593 }
5594
5595 if (pci_request_regions(ha->pdev, DRIVER_NAME)) {
5596 ql4_printk(KERN_WARNING, ha,
5597 "Failed to reserve PIO/MMIO regions\n");
5598
5599 goto iospace_error_exit;
5600 }
5601
5602 ha->pio_address = pio;
5603 ha->pio_length = pio_len;
5604 ha->reg = ioremap(mmio, MIN_IOBASE_LEN);
5605 if (!ha->reg) {
5606 ql4_printk(KERN_ERR, ha,
5607 "cannot remap MMIO, aborting\n");
5608
5609 goto iospace_error_exit;
5610 }
5611
5612 return 0;
5613
5614 iospace_error_exit:
5615 return -ENOMEM;
5616 }
5617
5618 static struct isp_operations qla4xxx_isp_ops = {
5619 .iospace_config = qla4xxx_iospace_config,
5620 .pci_config = qla4xxx_pci_config,
5621 .disable_intrs = qla4xxx_disable_intrs,
5622 .enable_intrs = qla4xxx_enable_intrs,
5623 .start_firmware = qla4xxx_start_firmware,
5624 .intr_handler = qla4xxx_intr_handler,
5625 .interrupt_service_routine = qla4xxx_interrupt_service_routine,
5626 .reset_chip = qla4xxx_soft_reset,
5627 .reset_firmware = qla4xxx_hw_reset,
5628 .queue_iocb = qla4xxx_queue_iocb,
5629 .complete_iocb = qla4xxx_complete_iocb,
5630 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out,
5631 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in,
5632 .get_sys_info = qla4xxx_get_sys_info,
5633 .queue_mailbox_command = qla4xxx_queue_mbox_cmd,
5634 .process_mailbox_interrupt = qla4xxx_process_mbox_intr,
5635 };
5636
5637 static struct isp_operations qla4_82xx_isp_ops = {
5638 .iospace_config = qla4_8xxx_iospace_config,
5639 .pci_config = qla4_8xxx_pci_config,
5640 .disable_intrs = qla4_82xx_disable_intrs,
5641 .enable_intrs = qla4_82xx_enable_intrs,
5642 .start_firmware = qla4_8xxx_load_risc,
5643 .restart_firmware = qla4_82xx_try_start_fw,
5644 .intr_handler = qla4_82xx_intr_handler,
5645 .interrupt_service_routine = qla4_82xx_interrupt_service_routine,
5646 .need_reset = qla4_8xxx_need_reset,
5647 .reset_chip = qla4_82xx_isp_reset,
5648 .reset_firmware = qla4_8xxx_stop_firmware,
5649 .queue_iocb = qla4_82xx_queue_iocb,
5650 .complete_iocb = qla4_82xx_complete_iocb,
5651 .rd_shdw_req_q_out = qla4_82xx_rd_shdw_req_q_out,
5652 .rd_shdw_rsp_q_in = qla4_82xx_rd_shdw_rsp_q_in,
5653 .get_sys_info = qla4_8xxx_get_sys_info,
5654 .rd_reg_direct = qla4_82xx_rd_32,
5655 .wr_reg_direct = qla4_82xx_wr_32,
5656 .rd_reg_indirect = qla4_82xx_md_rd_32,
5657 .wr_reg_indirect = qla4_82xx_md_wr_32,
5658 .idc_lock = qla4_82xx_idc_lock,
5659 .idc_unlock = qla4_82xx_idc_unlock,
5660 .rom_lock_recovery = qla4_82xx_rom_lock_recovery,
5661 .queue_mailbox_command = qla4_82xx_queue_mbox_cmd,
5662 .process_mailbox_interrupt = qla4_82xx_process_mbox_intr,
5663 };
5664
5665 static struct isp_operations qla4_83xx_isp_ops = {
5666 .iospace_config = qla4_8xxx_iospace_config,
5667 .pci_config = qla4_8xxx_pci_config,
5668 .disable_intrs = qla4_83xx_disable_intrs,
5669 .enable_intrs = qla4_83xx_enable_intrs,
5670 .start_firmware = qla4_8xxx_load_risc,
5671 .restart_firmware = qla4_83xx_start_firmware,
5672 .intr_handler = qla4_83xx_intr_handler,
5673 .interrupt_service_routine = qla4_83xx_interrupt_service_routine,
5674 .need_reset = qla4_8xxx_need_reset,
5675 .reset_chip = qla4_83xx_isp_reset,
5676 .reset_firmware = qla4_8xxx_stop_firmware,
5677 .queue_iocb = qla4_83xx_queue_iocb,
5678 .complete_iocb = qla4_83xx_complete_iocb,
5679 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out,
5680 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in,
5681 .get_sys_info = qla4_8xxx_get_sys_info,
5682 .rd_reg_direct = qla4_83xx_rd_reg,
5683 .wr_reg_direct = qla4_83xx_wr_reg,
5684 .rd_reg_indirect = qla4_83xx_rd_reg_indirect,
5685 .wr_reg_indirect = qla4_83xx_wr_reg_indirect,
5686 .idc_lock = qla4_83xx_drv_lock,
5687 .idc_unlock = qla4_83xx_drv_unlock,
5688 .rom_lock_recovery = qla4_83xx_rom_lock_recovery,
5689 .queue_mailbox_command = qla4_83xx_queue_mbox_cmd,
5690 .process_mailbox_interrupt = qla4_83xx_process_mbox_intr,
5691 };
5692
5693 uint16_t qla4xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha)
5694 {
5695 return (uint16_t)le32_to_cpu(ha->shadow_regs->req_q_out);
5696 }
5697
5698 uint16_t qla4_82xx_rd_shdw_req_q_out(struct scsi_qla_host *ha)
5699 {
5700 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->req_q_out));
5701 }
5702
5703 uint16_t qla4xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha)
5704 {
5705 return (uint16_t)le32_to_cpu(ha->shadow_regs->rsp_q_in);
5706 }
5707
5708 uint16_t qla4_82xx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha)
5709 {
5710 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->rsp_q_in));
5711 }
5712
5713 static ssize_t qla4xxx_show_boot_eth_info(void *data, int type, char *buf)
5714 {
5715 struct scsi_qla_host *ha = data;
5716 char *str = buf;
5717 int rc;
5718
5719 switch (type) {
5720 case ISCSI_BOOT_ETH_FLAGS:
5721 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT);
5722 break;
5723 case ISCSI_BOOT_ETH_INDEX:
5724 rc = sprintf(str, "0\n");
5725 break;
5726 case ISCSI_BOOT_ETH_MAC:
5727 rc = sysfs_format_mac(str, ha->my_mac,
5728 MAC_ADDR_LEN);
5729 break;
5730 default:
5731 rc = -ENOSYS;
5732 break;
5733 }
5734 return rc;
5735 }
5736
5737 static umode_t qla4xxx_eth_get_attr_visibility(void *data, int type)
5738 {
5739 int rc;
5740
5741 switch (type) {
5742 case ISCSI_BOOT_ETH_FLAGS:
5743 case ISCSI_BOOT_ETH_MAC:
5744 case ISCSI_BOOT_ETH_INDEX:
5745 rc = S_IRUGO;
5746 break;
5747 default:
5748 rc = 0;
5749 break;
5750 }
5751 return rc;
5752 }
5753
5754 static ssize_t qla4xxx_show_boot_ini_info(void *data, int type, char *buf)
5755 {
5756 struct scsi_qla_host *ha = data;
5757 char *str = buf;
5758 int rc;
5759
5760 switch (type) {
5761 case ISCSI_BOOT_INI_INITIATOR_NAME:
5762 rc = sprintf(str, "%s\n", ha->name_string);
5763 break;
5764 default:
5765 rc = -ENOSYS;
5766 break;
5767 }
5768 return rc;
5769 }
5770
5771 static umode_t qla4xxx_ini_get_attr_visibility(void *data, int type)
5772 {
5773 int rc;
5774
5775 switch (type) {
5776 case ISCSI_BOOT_INI_INITIATOR_NAME:
5777 rc = S_IRUGO;
5778 break;
5779 default:
5780 rc = 0;
5781 break;
5782 }
5783 return rc;
5784 }
5785
5786 static ssize_t
5787 qla4xxx_show_boot_tgt_info(struct ql4_boot_session_info *boot_sess, int type,
5788 char *buf)
5789 {
5790 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0];
5791 char *str = buf;
5792 int rc;
5793
5794 switch (type) {
5795 case ISCSI_BOOT_TGT_NAME:
5796 rc = sprintf(buf, "%s\n", (char *)&boot_sess->target_name);
5797 break;
5798 case ISCSI_BOOT_TGT_IP_ADDR:
5799 if (boot_sess->conn_list[0].dest_ipaddr.ip_type == 0x1)
5800 rc = sprintf(buf, "%pI4\n",
5801 &boot_conn->dest_ipaddr.ip_address);
5802 else
5803 rc = sprintf(str, "%pI6\n",
5804 &boot_conn->dest_ipaddr.ip_address);
5805 break;
5806 case ISCSI_BOOT_TGT_PORT:
5807 rc = sprintf(str, "%d\n", boot_conn->dest_port);
5808 break;
5809 case ISCSI_BOOT_TGT_CHAP_NAME:
5810 rc = sprintf(str, "%.*s\n",
5811 boot_conn->chap.target_chap_name_length,
5812 (char *)&boot_conn->chap.target_chap_name);
5813 break;
5814 case ISCSI_BOOT_TGT_CHAP_SECRET:
5815 rc = sprintf(str, "%.*s\n",
5816 boot_conn->chap.target_secret_length,
5817 (char *)&boot_conn->chap.target_secret);
5818 break;
5819 case ISCSI_BOOT_TGT_REV_CHAP_NAME:
5820 rc = sprintf(str, "%.*s\n",
5821 boot_conn->chap.intr_chap_name_length,
5822 (char *)&boot_conn->chap.intr_chap_name);
5823 break;
5824 case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
5825 rc = sprintf(str, "%.*s\n",
5826 boot_conn->chap.intr_secret_length,
5827 (char *)&boot_conn->chap.intr_secret);
5828 break;
5829 case ISCSI_BOOT_TGT_FLAGS:
5830 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT);
5831 break;
5832 case ISCSI_BOOT_TGT_NIC_ASSOC:
5833 rc = sprintf(str, "0\n");
5834 break;
5835 default:
5836 rc = -ENOSYS;
5837 break;
5838 }
5839 return rc;
5840 }
5841
5842 static ssize_t qla4xxx_show_boot_tgt_pri_info(void *data, int type, char *buf)
5843 {
5844 struct scsi_qla_host *ha = data;
5845 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_pri_sess);
5846
5847 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf);
5848 }
5849
5850 static ssize_t qla4xxx_show_boot_tgt_sec_info(void *data, int type, char *buf)
5851 {
5852 struct scsi_qla_host *ha = data;
5853 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_sec_sess);
5854
5855 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf);
5856 }
5857
5858 static umode_t qla4xxx_tgt_get_attr_visibility(void *data, int type)
5859 {
5860 int rc;
5861
5862 switch (type) {
5863 case ISCSI_BOOT_TGT_NAME:
5864 case ISCSI_BOOT_TGT_IP_ADDR:
5865 case ISCSI_BOOT_TGT_PORT:
5866 case ISCSI_BOOT_TGT_CHAP_NAME:
5867 case ISCSI_BOOT_TGT_CHAP_SECRET:
5868 case ISCSI_BOOT_TGT_REV_CHAP_NAME:
5869 case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
5870 case ISCSI_BOOT_TGT_NIC_ASSOC:
5871 case ISCSI_BOOT_TGT_FLAGS:
5872 rc = S_IRUGO;
5873 break;
5874 default:
5875 rc = 0;
5876 break;
5877 }
5878 return rc;
5879 }
5880
5881 static void qla4xxx_boot_release(void *data)
5882 {
5883 struct scsi_qla_host *ha = data;
5884
5885 scsi_host_put(ha->host);
5886 }
5887
5888 static int get_fw_boot_info(struct scsi_qla_host *ha, uint16_t ddb_index[])
5889 {
5890 dma_addr_t buf_dma;
5891 uint32_t addr, pri_addr, sec_addr;
5892 uint32_t offset;
5893 uint16_t func_num;
5894 uint8_t val;
5895 uint8_t *buf = NULL;
5896 size_t size = 13 * sizeof(uint8_t);
5897 int ret = QLA_SUCCESS;
5898
5899 func_num = PCI_FUNC(ha->pdev->devfn);
5900
5901 ql4_printk(KERN_INFO, ha, "%s: Get FW boot info for 0x%x func %d\n",
5902 __func__, ha->pdev->device, func_num);
5903
5904 if (is_qla40XX(ha)) {
5905 if (func_num == 1) {
5906 addr = NVRAM_PORT0_BOOT_MODE;
5907 pri_addr = NVRAM_PORT0_BOOT_PRI_TGT;
5908 sec_addr = NVRAM_PORT0_BOOT_SEC_TGT;
5909 } else if (func_num == 3) {
5910 addr = NVRAM_PORT1_BOOT_MODE;
5911 pri_addr = NVRAM_PORT1_BOOT_PRI_TGT;
5912 sec_addr = NVRAM_PORT1_BOOT_SEC_TGT;
5913 } else {
5914 ret = QLA_ERROR;
5915 goto exit_boot_info;
5916 }
5917
5918 /* Check Boot Mode */
5919 val = rd_nvram_byte(ha, addr);
5920 if (!(val & 0x07)) {
5921 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Adapter boot "
5922 "options : 0x%x\n", __func__, val));
5923 ret = QLA_ERROR;
5924 goto exit_boot_info;
5925 }
5926
5927 /* get primary valid target index */
5928 val = rd_nvram_byte(ha, pri_addr);
5929 if (val & BIT_7)
5930 ddb_index[0] = (val & 0x7f);
5931
5932 /* get secondary valid target index */
5933 val = rd_nvram_byte(ha, sec_addr);
5934 if (val & BIT_7)
5935 ddb_index[1] = (val & 0x7f);
5936
5937 } else if (is_qla80XX(ha)) {
5938 buf = dma_alloc_coherent(&ha->pdev->dev, size,
5939 &buf_dma, GFP_KERNEL);
5940 if (!buf) {
5941 DEBUG2(ql4_printk(KERN_ERR, ha,
5942 "%s: Unable to allocate dma buffer\n",
5943 __func__));
5944 ret = QLA_ERROR;
5945 goto exit_boot_info;
5946 }
5947
5948 if (ha->port_num == 0)
5949 offset = BOOT_PARAM_OFFSET_PORT0;
5950 else if (ha->port_num == 1)
5951 offset = BOOT_PARAM_OFFSET_PORT1;
5952 else {
5953 ret = QLA_ERROR;
5954 goto exit_boot_info_free;
5955 }
5956 addr = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_iscsi_param * 4) +
5957 offset;
5958 if (qla4xxx_get_flash(ha, buf_dma, addr,
5959 13 * sizeof(uint8_t)) != QLA_SUCCESS) {
5960 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: Get Flash"
5961 " failed\n", ha->host_no, __func__));
5962 ret = QLA_ERROR;
5963 goto exit_boot_info_free;
5964 }
5965 /* Check Boot Mode */
5966 if (!(buf[1] & 0x07)) {
5967 DEBUG2(ql4_printk(KERN_INFO, ha, "Firmware boot options"
5968 " : 0x%x\n", buf[1]));
5969 ret = QLA_ERROR;
5970 goto exit_boot_info_free;
5971 }
5972
5973 /* get primary valid target index */
5974 if (buf[2] & BIT_7)
5975 ddb_index[0] = buf[2] & 0x7f;
5976
5977 /* get secondary valid target index */
5978 if (buf[11] & BIT_7)
5979 ddb_index[1] = buf[11] & 0x7f;
5980 } else {
5981 ret = QLA_ERROR;
5982 goto exit_boot_info;
5983 }
5984
5985 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary target ID %d, Secondary"
5986 " target ID %d\n", __func__, ddb_index[0],
5987 ddb_index[1]));
5988
5989 exit_boot_info_free:
5990 dma_free_coherent(&ha->pdev->dev, size, buf, buf_dma);
5991 exit_boot_info:
5992 ha->pri_ddb_idx = ddb_index[0];
5993 ha->sec_ddb_idx = ddb_index[1];
5994 return ret;
5995 }
5996
5997 /**
5998 * qla4xxx_get_bidi_chap - Get a BIDI CHAP user and password
5999 * @ha: pointer to adapter structure
6000 * @username: CHAP username to be returned
6001 * @password: CHAP password to be returned
6002 *
6003 * If a boot entry has BIDI CHAP enabled then we need to set the BIDI CHAP
6004 * user and password in the sysfs entry in /sys/firmware/iscsi_boot#/.
6005 * So from the CHAP cache find the first BIDI CHAP entry and set it
6006 * to the boot record in sysfs.
6007 **/
6008 static int qla4xxx_get_bidi_chap(struct scsi_qla_host *ha, char *username,
6009 char *password)
6010 {
6011 int i, ret = -EINVAL;
6012 int max_chap_entries = 0;
6013 struct ql4_chap_table *chap_table;
6014
6015 if (is_qla80XX(ha))
6016 max_chap_entries = (ha->hw.flt_chap_size / 2) /
6017 sizeof(struct ql4_chap_table);
6018 else
6019 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
6020
6021 if (!ha->chap_list) {
6022 ql4_printk(KERN_ERR, ha, "Do not have CHAP table cache\n");
6023 return ret;
6024 }
6025
6026 mutex_lock(&ha->chap_sem);
6027 for (i = 0; i < max_chap_entries; i++) {
6028 chap_table = (struct ql4_chap_table *)ha->chap_list + i;
6029 if (chap_table->cookie !=
6030 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) {
6031 continue;
6032 }
6033
6034 if (chap_table->flags & BIT_7) /* local */
6035 continue;
6036
6037 if (!(chap_table->flags & BIT_6)) /* Not BIDI */
6038 continue;
6039
6040 strlcpy(password, chap_table->secret, QL4_CHAP_MAX_SECRET_LEN);
6041 strlcpy(username, chap_table->name, QL4_CHAP_MAX_NAME_LEN);
6042 ret = 0;
6043 break;
6044 }
6045 mutex_unlock(&ha->chap_sem);
6046
6047 return ret;
6048 }
6049
6050
6051 static int qla4xxx_get_boot_target(struct scsi_qla_host *ha,
6052 struct ql4_boot_session_info *boot_sess,
6053 uint16_t ddb_index)
6054 {
6055 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0];
6056 struct dev_db_entry *fw_ddb_entry;
6057 dma_addr_t fw_ddb_entry_dma;
6058 uint16_t idx;
6059 uint16_t options;
6060 int ret = QLA_SUCCESS;
6061
6062 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
6063 &fw_ddb_entry_dma, GFP_KERNEL);
6064 if (!fw_ddb_entry) {
6065 DEBUG2(ql4_printk(KERN_ERR, ha,
6066 "%s: Unable to allocate dma buffer.\n",
6067 __func__));
6068 ret = QLA_ERROR;
6069 return ret;
6070 }
6071
6072 if (qla4xxx_bootdb_by_index(ha, fw_ddb_entry,
6073 fw_ddb_entry_dma, ddb_index)) {
6074 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: No Flash DDB found at "
6075 "index [%d]\n", __func__, ddb_index));
6076 ret = QLA_ERROR;
6077 goto exit_boot_target;
6078 }
6079
6080 /* Update target name and IP from DDB */
6081 memcpy(boot_sess->target_name, fw_ddb_entry->iscsi_name,
6082 min(sizeof(boot_sess->target_name),
6083 sizeof(fw_ddb_entry->iscsi_name)));
6084
6085 options = le16_to_cpu(fw_ddb_entry->options);
6086 if (options & DDB_OPT_IPV6_DEVICE) {
6087 memcpy(&boot_conn->dest_ipaddr.ip_address,
6088 &fw_ddb_entry->ip_addr[0], IPv6_ADDR_LEN);
6089 } else {
6090 boot_conn->dest_ipaddr.ip_type = 0x1;
6091 memcpy(&boot_conn->dest_ipaddr.ip_address,
6092 &fw_ddb_entry->ip_addr[0], IP_ADDR_LEN);
6093 }
6094
6095 boot_conn->dest_port = le16_to_cpu(fw_ddb_entry->port);
6096
6097 /* update chap information */
6098 idx = __le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
6099
6100 if (BIT_7 & le16_to_cpu(fw_ddb_entry->iscsi_options)) {
6101
6102 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting chap\n"));
6103
6104 ret = qla4xxx_get_chap(ha, (char *)&boot_conn->chap.
6105 target_chap_name,
6106 (char *)&boot_conn->chap.target_secret,
6107 idx);
6108 if (ret) {
6109 ql4_printk(KERN_ERR, ha, "Failed to set chap\n");
6110 ret = QLA_ERROR;
6111 goto exit_boot_target;
6112 }
6113
6114 boot_conn->chap.target_chap_name_length = QL4_CHAP_MAX_NAME_LEN;
6115 boot_conn->chap.target_secret_length = QL4_CHAP_MAX_SECRET_LEN;
6116 }
6117
6118 if (BIT_4 & le16_to_cpu(fw_ddb_entry->iscsi_options)) {
6119
6120 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting BIDI chap\n"));
6121
6122 ret = qla4xxx_get_bidi_chap(ha,
6123 (char *)&boot_conn->chap.intr_chap_name,
6124 (char *)&boot_conn->chap.intr_secret);
6125
6126 if (ret) {
6127 ql4_printk(KERN_ERR, ha, "Failed to set BIDI chap\n");
6128 ret = QLA_ERROR;
6129 goto exit_boot_target;
6130 }
6131
6132 boot_conn->chap.intr_chap_name_length = QL4_CHAP_MAX_NAME_LEN;
6133 boot_conn->chap.intr_secret_length = QL4_CHAP_MAX_SECRET_LEN;
6134 }
6135
6136 exit_boot_target:
6137 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
6138 fw_ddb_entry, fw_ddb_entry_dma);
6139 return ret;
6140 }
6141
6142 static int qla4xxx_get_boot_info(struct scsi_qla_host *ha)
6143 {
6144 uint16_t ddb_index[2];
6145 int ret = QLA_ERROR;
6146 int rval;
6147
6148 memset(ddb_index, 0, sizeof(ddb_index));
6149 ddb_index[0] = 0xffff;
6150 ddb_index[1] = 0xffff;
6151 ret = get_fw_boot_info(ha, ddb_index);
6152 if (ret != QLA_SUCCESS) {
6153 DEBUG2(ql4_printk(KERN_INFO, ha,
6154 "%s: No boot target configured.\n", __func__));
6155 return ret;
6156 }
6157
6158 if (ql4xdisablesysfsboot)
6159 return QLA_SUCCESS;
6160
6161 if (ddb_index[0] == 0xffff)
6162 goto sec_target;
6163
6164 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_pri_sess),
6165 ddb_index[0]);
6166 if (rval != QLA_SUCCESS) {
6167 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary boot target not "
6168 "configured\n", __func__));
6169 } else
6170 ret = QLA_SUCCESS;
6171
6172 sec_target:
6173 if (ddb_index[1] == 0xffff)
6174 goto exit_get_boot_info;
6175
6176 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_sec_sess),
6177 ddb_index[1]);
6178 if (rval != QLA_SUCCESS) {
6179 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Secondary boot target not"
6180 " configured\n", __func__));
6181 } else
6182 ret = QLA_SUCCESS;
6183
6184 exit_get_boot_info:
6185 return ret;
6186 }
6187
6188 static int qla4xxx_setup_boot_info(struct scsi_qla_host *ha)
6189 {
6190 struct iscsi_boot_kobj *boot_kobj;
6191
6192 if (qla4xxx_get_boot_info(ha) != QLA_SUCCESS)
6193 return QLA_ERROR;
6194
6195 if (ql4xdisablesysfsboot) {
6196 ql4_printk(KERN_INFO, ha,
6197 "%s: syfsboot disabled - driver will trigger login "
6198 "and publish session for discovery .\n", __func__);
6199 return QLA_SUCCESS;
6200 }
6201
6202
6203 ha->boot_kset = iscsi_boot_create_host_kset(ha->host->host_no);
6204 if (!ha->boot_kset)
6205 goto kset_free;
6206
6207 if (!scsi_host_get(ha->host))
6208 goto kset_free;
6209 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 0, ha,
6210 qla4xxx_show_boot_tgt_pri_info,
6211 qla4xxx_tgt_get_attr_visibility,
6212 qla4xxx_boot_release);
6213 if (!boot_kobj)
6214 goto put_host;
6215
6216 if (!scsi_host_get(ha->host))
6217 goto kset_free;
6218 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 1, ha,
6219 qla4xxx_show_boot_tgt_sec_info,
6220 qla4xxx_tgt_get_attr_visibility,
6221 qla4xxx_boot_release);
6222 if (!boot_kobj)
6223 goto put_host;
6224
6225 if (!scsi_host_get(ha->host))
6226 goto kset_free;
6227 boot_kobj = iscsi_boot_create_initiator(ha->boot_kset, 0, ha,
6228 qla4xxx_show_boot_ini_info,
6229 qla4xxx_ini_get_attr_visibility,
6230 qla4xxx_boot_release);
6231 if (!boot_kobj)
6232 goto put_host;
6233
6234 if (!scsi_host_get(ha->host))
6235 goto kset_free;
6236 boot_kobj = iscsi_boot_create_ethernet(ha->boot_kset, 0, ha,
6237 qla4xxx_show_boot_eth_info,
6238 qla4xxx_eth_get_attr_visibility,
6239 qla4xxx_boot_release);
6240 if (!boot_kobj)
6241 goto put_host;
6242
6243 return QLA_SUCCESS;
6244
6245 put_host:
6246 scsi_host_put(ha->host);
6247 kset_free:
6248 iscsi_boot_destroy_kset(ha->boot_kset);
6249 return -ENOMEM;
6250 }
6251
6252
6253 static void qla4xxx_get_param_ddb(struct ddb_entry *ddb_entry,
6254 struct ql4_tuple_ddb *tddb)
6255 {
6256 struct scsi_qla_host *ha;
6257 struct iscsi_cls_session *cls_sess;
6258 struct iscsi_cls_conn *cls_conn;
6259 struct iscsi_session *sess;
6260 struct iscsi_conn *conn;
6261
6262 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
6263 ha = ddb_entry->ha;
6264 cls_sess = ddb_entry->sess;
6265 sess = cls_sess->dd_data;
6266 cls_conn = ddb_entry->conn;
6267 conn = cls_conn->dd_data;
6268
6269 tddb->tpgt = sess->tpgt;
6270 tddb->port = conn->persistent_port;
6271 strlcpy(tddb->iscsi_name, sess->targetname, ISCSI_NAME_SIZE);
6272 strlcpy(tddb->ip_addr, conn->persistent_address, DDB_IPADDR_LEN);
6273 }
6274
6275 static void qla4xxx_convert_param_ddb(struct dev_db_entry *fw_ddb_entry,
6276 struct ql4_tuple_ddb *tddb,
6277 uint8_t *flash_isid)
6278 {
6279 uint16_t options = 0;
6280
6281 tddb->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
6282 memcpy(&tddb->iscsi_name[0], &fw_ddb_entry->iscsi_name[0],
6283 min(sizeof(tddb->iscsi_name), sizeof(fw_ddb_entry->iscsi_name)));
6284
6285 options = le16_to_cpu(fw_ddb_entry->options);
6286 if (options & DDB_OPT_IPV6_DEVICE)
6287 sprintf(tddb->ip_addr, "%pI6", fw_ddb_entry->ip_addr);
6288 else
6289 sprintf(tddb->ip_addr, "%pI4", fw_ddb_entry->ip_addr);
6290
6291 tddb->port = le16_to_cpu(fw_ddb_entry->port);
6292
6293 if (flash_isid == NULL)
6294 memcpy(&tddb->isid[0], &fw_ddb_entry->isid[0],
6295 sizeof(tddb->isid));
6296 else
6297 memcpy(&tddb->isid[0], &flash_isid[0], sizeof(tddb->isid));
6298 }
6299
6300 static int qla4xxx_compare_tuple_ddb(struct scsi_qla_host *ha,
6301 struct ql4_tuple_ddb *old_tddb,
6302 struct ql4_tuple_ddb *new_tddb,
6303 uint8_t is_isid_compare)
6304 {
6305 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name))
6306 return QLA_ERROR;
6307
6308 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr))
6309 return QLA_ERROR;
6310
6311 if (old_tddb->port != new_tddb->port)
6312 return QLA_ERROR;
6313
6314 /* For multi sessions, driver generates the ISID, so do not compare
6315 * ISID in reset path since it would be a comparison between the
6316 * driver generated ISID and firmware generated ISID. This could
6317 * lead to adding duplicated DDBs in the list as driver generated
6318 * ISID would not match firmware generated ISID.
6319 */
6320 if (is_isid_compare) {
6321 DEBUG2(ql4_printk(KERN_INFO, ha,
6322 "%s: old ISID [%pmR] New ISID [%pmR]\n",
6323 __func__, old_tddb->isid, new_tddb->isid));
6324
6325 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0],
6326 sizeof(old_tddb->isid)))
6327 return QLA_ERROR;
6328 }
6329
6330 DEBUG2(ql4_printk(KERN_INFO, ha,
6331 "Match Found, fw[%d,%d,%s,%s], [%d,%d,%s,%s]",
6332 old_tddb->port, old_tddb->tpgt, old_tddb->ip_addr,
6333 old_tddb->iscsi_name, new_tddb->port, new_tddb->tpgt,
6334 new_tddb->ip_addr, new_tddb->iscsi_name));
6335
6336 return QLA_SUCCESS;
6337 }
6338
6339 static int qla4xxx_is_session_exists(struct scsi_qla_host *ha,
6340 struct dev_db_entry *fw_ddb_entry,
6341 uint32_t *index)
6342 {
6343 struct ddb_entry *ddb_entry;
6344 struct ql4_tuple_ddb *fw_tddb = NULL;
6345 struct ql4_tuple_ddb *tmp_tddb = NULL;
6346 int idx;
6347 int ret = QLA_ERROR;
6348
6349 fw_tddb = vzalloc(sizeof(*fw_tddb));
6350 if (!fw_tddb) {
6351 DEBUG2(ql4_printk(KERN_WARNING, ha,
6352 "Memory Allocation failed.\n"));
6353 ret = QLA_SUCCESS;
6354 goto exit_check;
6355 }
6356
6357 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
6358 if (!tmp_tddb) {
6359 DEBUG2(ql4_printk(KERN_WARNING, ha,
6360 "Memory Allocation failed.\n"));
6361 ret = QLA_SUCCESS;
6362 goto exit_check;
6363 }
6364
6365 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL);
6366
6367 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
6368 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
6369 if (ddb_entry == NULL)
6370 continue;
6371
6372 qla4xxx_get_param_ddb(ddb_entry, tmp_tddb);
6373 if (!qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, false)) {
6374 ret = QLA_SUCCESS; /* found */
6375 if (index != NULL)
6376 *index = idx;
6377 goto exit_check;
6378 }
6379 }
6380
6381 exit_check:
6382 if (fw_tddb)
6383 vfree(fw_tddb);
6384 if (tmp_tddb)
6385 vfree(tmp_tddb);
6386 return ret;
6387 }
6388
6389 /**
6390 * qla4xxx_check_existing_isid - check if target with same isid exist
6391 * in target list
6392 * @list_nt: list of target
6393 * @isid: isid to check
6394 *
6395 * This routine return QLA_SUCCESS if target with same isid exist
6396 **/
6397 static int qla4xxx_check_existing_isid(struct list_head *list_nt, uint8_t *isid)
6398 {
6399 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp;
6400 struct dev_db_entry *fw_ddb_entry;
6401
6402 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
6403 fw_ddb_entry = &nt_ddb_idx->fw_ddb;
6404
6405 if (memcmp(&fw_ddb_entry->isid[0], &isid[0],
6406 sizeof(nt_ddb_idx->fw_ddb.isid)) == 0) {
6407 return QLA_SUCCESS;
6408 }
6409 }
6410 return QLA_ERROR;
6411 }
6412
6413 /**
6414 * qla4xxx_update_isid - compare ddbs and updated isid
6415 * @ha: Pointer to host adapter structure.
6416 * @list_nt: list of nt target
6417 * @fw_ddb_entry: firmware ddb entry
6418 *
6419 * This routine update isid if ddbs have same iqn, same isid and
6420 * different IP addr.
6421 * Return QLA_SUCCESS if isid is updated.
6422 **/
6423 static int qla4xxx_update_isid(struct scsi_qla_host *ha,
6424 struct list_head *list_nt,
6425 struct dev_db_entry *fw_ddb_entry)
6426 {
6427 uint8_t base_value, i;
6428
6429 base_value = fw_ddb_entry->isid[1] & 0x1f;
6430 for (i = 0; i < 8; i++) {
6431 fw_ddb_entry->isid[1] = (base_value | (i << 5));
6432 if (qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid))
6433 break;
6434 }
6435
6436 if (!qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid))
6437 return QLA_ERROR;
6438
6439 return QLA_SUCCESS;
6440 }
6441
6442 /**
6443 * qla4xxx_should_update_isid - check if isid need to update
6444 * @ha: Pointer to host adapter structure.
6445 * @old_tddb: ddb tuple
6446 * @new_tddb: ddb tuple
6447 *
6448 * Return QLA_SUCCESS if different IP, different PORT, same iqn,
6449 * same isid
6450 **/
6451 static int qla4xxx_should_update_isid(struct scsi_qla_host *ha,
6452 struct ql4_tuple_ddb *old_tddb,
6453 struct ql4_tuple_ddb *new_tddb)
6454 {
6455 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr) == 0) {
6456 /* Same ip */
6457 if (old_tddb->port == new_tddb->port)
6458 return QLA_ERROR;
6459 }
6460
6461 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name))
6462 /* different iqn */
6463 return QLA_ERROR;
6464
6465 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0],
6466 sizeof(old_tddb->isid)))
6467 /* different isid */
6468 return QLA_ERROR;
6469
6470 return QLA_SUCCESS;
6471 }
6472
6473 /**
6474 * qla4xxx_is_flash_ddb_exists - check if fw_ddb_entry already exists in list_nt
6475 * @ha: Pointer to host adapter structure.
6476 * @list_nt: list of nt target.
6477 * @fw_ddb_entry: firmware ddb entry.
6478 *
6479 * This routine check if fw_ddb_entry already exists in list_nt to avoid
6480 * duplicate ddb in list_nt.
6481 * Return QLA_SUCCESS if duplicate ddb exit in list_nl.
6482 * Note: This function also update isid of DDB if required.
6483 **/
6484
6485 static int qla4xxx_is_flash_ddb_exists(struct scsi_qla_host *ha,
6486 struct list_head *list_nt,
6487 struct dev_db_entry *fw_ddb_entry)
6488 {
6489 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp;
6490 struct ql4_tuple_ddb *fw_tddb = NULL;
6491 struct ql4_tuple_ddb *tmp_tddb = NULL;
6492 int rval, ret = QLA_ERROR;
6493
6494 fw_tddb = vzalloc(sizeof(*fw_tddb));
6495 if (!fw_tddb) {
6496 DEBUG2(ql4_printk(KERN_WARNING, ha,
6497 "Memory Allocation failed.\n"));
6498 ret = QLA_SUCCESS;
6499 goto exit_check;
6500 }
6501
6502 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
6503 if (!tmp_tddb) {
6504 DEBUG2(ql4_printk(KERN_WARNING, ha,
6505 "Memory Allocation failed.\n"));
6506 ret = QLA_SUCCESS;
6507 goto exit_check;
6508 }
6509
6510 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL);
6511
6512 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
6513 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb,
6514 nt_ddb_idx->flash_isid);
6515 ret = qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, true);
6516 /* found duplicate ddb */
6517 if (ret == QLA_SUCCESS)
6518 goto exit_check;
6519 }
6520
6521 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
6522 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb, NULL);
6523
6524 ret = qla4xxx_should_update_isid(ha, tmp_tddb, fw_tddb);
6525 if (ret == QLA_SUCCESS) {
6526 rval = qla4xxx_update_isid(ha, list_nt, fw_ddb_entry);
6527 if (rval == QLA_SUCCESS)
6528 ret = QLA_ERROR;
6529 else
6530 ret = QLA_SUCCESS;
6531
6532 goto exit_check;
6533 }
6534 }
6535
6536 exit_check:
6537 if (fw_tddb)
6538 vfree(fw_tddb);
6539 if (tmp_tddb)
6540 vfree(tmp_tddb);
6541 return ret;
6542 }
6543
6544 static void qla4xxx_free_ddb_list(struct list_head *list_ddb)
6545 {
6546 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
6547
6548 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
6549 list_del_init(&ddb_idx->list);
6550 vfree(ddb_idx);
6551 }
6552 }
6553
6554 static struct iscsi_endpoint *qla4xxx_get_ep_fwdb(struct scsi_qla_host *ha,
6555 struct dev_db_entry *fw_ddb_entry)
6556 {
6557 struct iscsi_endpoint *ep;
6558 struct sockaddr_in *addr;
6559 struct sockaddr_in6 *addr6;
6560 struct sockaddr *t_addr;
6561 struct sockaddr_storage *dst_addr;
6562 char *ip;
6563
6564 /* TODO: need to destroy on unload iscsi_endpoint*/
6565 dst_addr = vmalloc(sizeof(*dst_addr));
6566 if (!dst_addr)
6567 return NULL;
6568
6569 if (fw_ddb_entry->options & DDB_OPT_IPV6_DEVICE) {
6570 t_addr = (struct sockaddr *)dst_addr;
6571 t_addr->sa_family = AF_INET6;
6572 addr6 = (struct sockaddr_in6 *)dst_addr;
6573 ip = (char *)&addr6->sin6_addr;
6574 memcpy(ip, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN);
6575 addr6->sin6_port = htons(le16_to_cpu(fw_ddb_entry->port));
6576
6577 } else {
6578 t_addr = (struct sockaddr *)dst_addr;
6579 t_addr->sa_family = AF_INET;
6580 addr = (struct sockaddr_in *)dst_addr;
6581 ip = (char *)&addr->sin_addr;
6582 memcpy(ip, fw_ddb_entry->ip_addr, IP_ADDR_LEN);
6583 addr->sin_port = htons(le16_to_cpu(fw_ddb_entry->port));
6584 }
6585
6586 ep = qla4xxx_ep_connect(ha->host, (struct sockaddr *)dst_addr, 0);
6587 vfree(dst_addr);
6588 return ep;
6589 }
6590
6591 static int qla4xxx_verify_boot_idx(struct scsi_qla_host *ha, uint16_t idx)
6592 {
6593 if (ql4xdisablesysfsboot)
6594 return QLA_SUCCESS;
6595 if (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx)
6596 return QLA_ERROR;
6597 return QLA_SUCCESS;
6598 }
6599
6600 static void qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha,
6601 struct ddb_entry *ddb_entry,
6602 uint16_t idx)
6603 {
6604 uint16_t def_timeout;
6605
6606 ddb_entry->ddb_type = FLASH_DDB;
6607 ddb_entry->fw_ddb_index = INVALID_ENTRY;
6608 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE;
6609 ddb_entry->ha = ha;
6610 ddb_entry->unblock_sess = qla4xxx_unblock_flash_ddb;
6611 ddb_entry->ddb_change = qla4xxx_flash_ddb_change;
6612 ddb_entry->chap_tbl_idx = INVALID_ENTRY;
6613
6614 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY);
6615 atomic_set(&ddb_entry->relogin_timer, 0);
6616 atomic_set(&ddb_entry->relogin_retry_count, 0);
6617 def_timeout = le16_to_cpu(ddb_entry->fw_ddb_entry.def_timeout);
6618 ddb_entry->default_relogin_timeout =
6619 (def_timeout > LOGIN_TOV) && (def_timeout < LOGIN_TOV * 10) ?
6620 def_timeout : LOGIN_TOV;
6621 ddb_entry->default_time2wait =
6622 le16_to_cpu(ddb_entry->fw_ddb_entry.iscsi_def_time2wait);
6623
6624 if (ql4xdisablesysfsboot &&
6625 (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx))
6626 set_bit(DF_BOOT_TGT, &ddb_entry->flags);
6627 }
6628
6629 static void qla4xxx_wait_for_ip_configuration(struct scsi_qla_host *ha)
6630 {
6631 uint32_t idx = 0;
6632 uint32_t ip_idx[IP_ADDR_COUNT] = {0, 1, 2, 3}; /* 4 IP interfaces */
6633 uint32_t sts[MBOX_REG_COUNT];
6634 uint32_t ip_state;
6635 unsigned long wtime;
6636 int ret;
6637
6638 wtime = jiffies + (HZ * IP_CONFIG_TOV);
6639 do {
6640 for (idx = 0; idx < IP_ADDR_COUNT; idx++) {
6641 if (ip_idx[idx] == -1)
6642 continue;
6643
6644 ret = qla4xxx_get_ip_state(ha, 0, ip_idx[idx], sts);
6645
6646 if (ret == QLA_ERROR) {
6647 ip_idx[idx] = -1;
6648 continue;
6649 }
6650
6651 ip_state = (sts[1] & IP_STATE_MASK) >> IP_STATE_SHIFT;
6652
6653 DEBUG2(ql4_printk(KERN_INFO, ha,
6654 "Waiting for IP state for idx = %d, state = 0x%x\n",
6655 ip_idx[idx], ip_state));
6656 if (ip_state == IP_ADDRSTATE_UNCONFIGURED ||
6657 ip_state == IP_ADDRSTATE_INVALID ||
6658 ip_state == IP_ADDRSTATE_PREFERRED ||
6659 ip_state == IP_ADDRSTATE_DEPRICATED ||
6660 ip_state == IP_ADDRSTATE_DISABLING)
6661 ip_idx[idx] = -1;
6662 }
6663
6664 /* Break if all IP states checked */
6665 if ((ip_idx[0] == -1) &&
6666 (ip_idx[1] == -1) &&
6667 (ip_idx[2] == -1) &&
6668 (ip_idx[3] == -1))
6669 break;
6670 schedule_timeout_uninterruptible(HZ);
6671 } while (time_after(wtime, jiffies));
6672 }
6673
6674 static int qla4xxx_cmp_fw_stentry(struct dev_db_entry *fw_ddb_entry,
6675 struct dev_db_entry *flash_ddb_entry)
6676 {
6677 uint16_t options = 0;
6678 size_t ip_len = IP_ADDR_LEN;
6679
6680 options = le16_to_cpu(fw_ddb_entry->options);
6681 if (options & DDB_OPT_IPV6_DEVICE)
6682 ip_len = IPv6_ADDR_LEN;
6683
6684 if (memcmp(fw_ddb_entry->ip_addr, flash_ddb_entry->ip_addr, ip_len))
6685 return QLA_ERROR;
6686
6687 if (memcmp(&fw_ddb_entry->isid[0], &flash_ddb_entry->isid[0],
6688 sizeof(fw_ddb_entry->isid)))
6689 return QLA_ERROR;
6690
6691 if (memcmp(&fw_ddb_entry->port, &flash_ddb_entry->port,
6692 sizeof(fw_ddb_entry->port)))
6693 return QLA_ERROR;
6694
6695 return QLA_SUCCESS;
6696 }
6697
6698 static int qla4xxx_find_flash_st_idx(struct scsi_qla_host *ha,
6699 struct dev_db_entry *fw_ddb_entry,
6700 uint32_t fw_idx, uint32_t *flash_index)
6701 {
6702 struct dev_db_entry *flash_ddb_entry;
6703 dma_addr_t flash_ddb_entry_dma;
6704 uint32_t idx = 0;
6705 int max_ddbs;
6706 int ret = QLA_ERROR, status;
6707
6708 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
6709 MAX_DEV_DB_ENTRIES;
6710
6711 flash_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
6712 &flash_ddb_entry_dma);
6713 if (flash_ddb_entry == NULL || fw_ddb_entry == NULL) {
6714 ql4_printk(KERN_ERR, ha, "Out of memory\n");
6715 goto exit_find_st_idx;
6716 }
6717
6718 status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry,
6719 flash_ddb_entry_dma, fw_idx);
6720 if (status == QLA_SUCCESS) {
6721 status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry);
6722 if (status == QLA_SUCCESS) {
6723 *flash_index = fw_idx;
6724 ret = QLA_SUCCESS;
6725 goto exit_find_st_idx;
6726 }
6727 }
6728
6729 for (idx = 0; idx < max_ddbs; idx++) {
6730 status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry,
6731 flash_ddb_entry_dma, idx);
6732 if (status == QLA_ERROR)
6733 continue;
6734
6735 status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry);
6736 if (status == QLA_SUCCESS) {
6737 *flash_index = idx;
6738 ret = QLA_SUCCESS;
6739 goto exit_find_st_idx;
6740 }
6741 }
6742
6743 if (idx == max_ddbs)
6744 ql4_printk(KERN_ERR, ha, "Failed to find ST [%d] in flash\n",
6745 fw_idx);
6746
6747 exit_find_st_idx:
6748 if (flash_ddb_entry)
6749 dma_pool_free(ha->fw_ddb_dma_pool, flash_ddb_entry,
6750 flash_ddb_entry_dma);
6751
6752 return ret;
6753 }
6754
6755 static void qla4xxx_build_st_list(struct scsi_qla_host *ha,
6756 struct list_head *list_st)
6757 {
6758 struct qla_ddb_index *st_ddb_idx;
6759 int max_ddbs;
6760 int fw_idx_size;
6761 struct dev_db_entry *fw_ddb_entry;
6762 dma_addr_t fw_ddb_dma;
6763 int ret;
6764 uint32_t idx = 0, next_idx = 0;
6765 uint32_t state = 0, conn_err = 0;
6766 uint32_t flash_index = -1;
6767 uint16_t conn_id = 0;
6768
6769 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
6770 &fw_ddb_dma);
6771 if (fw_ddb_entry == NULL) {
6772 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
6773 goto exit_st_list;
6774 }
6775
6776 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
6777 MAX_DEV_DB_ENTRIES;
6778 fw_idx_size = sizeof(struct qla_ddb_index);
6779
6780 for (idx = 0; idx < max_ddbs; idx = next_idx) {
6781 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
6782 NULL, &next_idx, &state,
6783 &conn_err, NULL, &conn_id);
6784 if (ret == QLA_ERROR)
6785 break;
6786
6787 /* Ignore DDB if invalid state (unassigned) */
6788 if (state == DDB_DS_UNASSIGNED)
6789 goto continue_next_st;
6790
6791 /* Check if ST, add to the list_st */
6792 if (strlen((char *) fw_ddb_entry->iscsi_name) != 0)
6793 goto continue_next_st;
6794
6795 st_ddb_idx = vzalloc(fw_idx_size);
6796 if (!st_ddb_idx)
6797 break;
6798
6799 ret = qla4xxx_find_flash_st_idx(ha, fw_ddb_entry, idx,
6800 &flash_index);
6801 if (ret == QLA_ERROR) {
6802 ql4_printk(KERN_ERR, ha,
6803 "No flash entry for ST at idx [%d]\n", idx);
6804 st_ddb_idx->flash_ddb_idx = idx;
6805 } else {
6806 ql4_printk(KERN_INFO, ha,
6807 "ST at idx [%d] is stored at flash [%d]\n",
6808 idx, flash_index);
6809 st_ddb_idx->flash_ddb_idx = flash_index;
6810 }
6811
6812 st_ddb_idx->fw_ddb_idx = idx;
6813
6814 list_add_tail(&st_ddb_idx->list, list_st);
6815 continue_next_st:
6816 if (next_idx == 0)
6817 break;
6818 }
6819
6820 exit_st_list:
6821 if (fw_ddb_entry)
6822 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
6823 }
6824
6825 /**
6826 * qla4xxx_remove_failed_ddb - Remove inactive or failed ddb from list
6827 * @ha: pointer to adapter structure
6828 * @list_ddb: List from which failed ddb to be removed
6829 *
6830 * Iterate over the list of DDBs and find and remove DDBs that are either in
6831 * no connection active state or failed state
6832 **/
6833 static void qla4xxx_remove_failed_ddb(struct scsi_qla_host *ha,
6834 struct list_head *list_ddb)
6835 {
6836 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
6837 uint32_t next_idx = 0;
6838 uint32_t state = 0, conn_err = 0;
6839 int ret;
6840
6841 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
6842 ret = qla4xxx_get_fwddb_entry(ha, ddb_idx->fw_ddb_idx,
6843 NULL, 0, NULL, &next_idx, &state,
6844 &conn_err, NULL, NULL);
6845 if (ret == QLA_ERROR)
6846 continue;
6847
6848 if (state == DDB_DS_NO_CONNECTION_ACTIVE ||
6849 state == DDB_DS_SESSION_FAILED) {
6850 list_del_init(&ddb_idx->list);
6851 vfree(ddb_idx);
6852 }
6853 }
6854 }
6855
6856 static void qla4xxx_update_sess_disc_idx(struct scsi_qla_host *ha,
6857 struct ddb_entry *ddb_entry,
6858 struct dev_db_entry *fw_ddb_entry)
6859 {
6860 struct iscsi_cls_session *cls_sess;
6861 struct iscsi_session *sess;
6862 uint32_t max_ddbs = 0;
6863 uint16_t ddb_link = -1;
6864
6865 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
6866 MAX_DEV_DB_ENTRIES;
6867
6868 cls_sess = ddb_entry->sess;
6869 sess = cls_sess->dd_data;
6870
6871 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
6872 if (ddb_link < max_ddbs)
6873 sess->discovery_parent_idx = ddb_link;
6874 else
6875 sess->discovery_parent_idx = DDB_NO_LINK;
6876 }
6877
6878 static int qla4xxx_sess_conn_setup(struct scsi_qla_host *ha,
6879 struct dev_db_entry *fw_ddb_entry,
6880 int is_reset, uint16_t idx)
6881 {
6882 struct iscsi_cls_session *cls_sess;
6883 struct iscsi_session *sess;
6884 struct iscsi_cls_conn *cls_conn;
6885 struct iscsi_endpoint *ep;
6886 uint16_t cmds_max = 32;
6887 uint16_t conn_id = 0;
6888 uint32_t initial_cmdsn = 0;
6889 int ret = QLA_SUCCESS;
6890
6891 struct ddb_entry *ddb_entry = NULL;
6892
6893 /* Create session object, with INVALID_ENTRY,
6894 * the targer_id would get set when we issue the login
6895 */
6896 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, ha->host,
6897 cmds_max, sizeof(struct ddb_entry),
6898 sizeof(struct ql4_task_data),
6899 initial_cmdsn, INVALID_ENTRY);
6900 if (!cls_sess) {
6901 ret = QLA_ERROR;
6902 goto exit_setup;
6903 }
6904
6905 /*
6906 * so calling module_put function to decrement the
6907 * reference count.
6908 **/
6909 module_put(qla4xxx_iscsi_transport.owner);
6910 sess = cls_sess->dd_data;
6911 ddb_entry = sess->dd_data;
6912 ddb_entry->sess = cls_sess;
6913
6914 cls_sess->recovery_tmo = ql4xsess_recovery_tmo;
6915 memcpy(&ddb_entry->fw_ddb_entry, fw_ddb_entry,
6916 sizeof(struct dev_db_entry));
6917
6918 qla4xxx_setup_flash_ddb_entry(ha, ddb_entry, idx);
6919
6920 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), conn_id);
6921
6922 if (!cls_conn) {
6923 ret = QLA_ERROR;
6924 goto exit_setup;
6925 }
6926
6927 ddb_entry->conn = cls_conn;
6928
6929 /* Setup ep, for displaying attributes in sysfs */
6930 ep = qla4xxx_get_ep_fwdb(ha, fw_ddb_entry);
6931 if (ep) {
6932 ep->conn = cls_conn;
6933 cls_conn->ep = ep;
6934 } else {
6935 DEBUG2(ql4_printk(KERN_ERR, ha, "Unable to get ep\n"));
6936 ret = QLA_ERROR;
6937 goto exit_setup;
6938 }
6939
6940 /* Update sess/conn params */
6941 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn);
6942 qla4xxx_update_sess_disc_idx(ha, ddb_entry, fw_ddb_entry);
6943
6944 if (is_reset == RESET_ADAPTER) {
6945 iscsi_block_session(cls_sess);
6946 /* Use the relogin path to discover new devices
6947 * by short-circuting the logic of setting
6948 * timer to relogin - instead set the flags
6949 * to initiate login right away.
6950 */
6951 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
6952 set_bit(DF_RELOGIN, &ddb_entry->flags);
6953 }
6954
6955 exit_setup:
6956 return ret;
6957 }
6958
6959 static void qla4xxx_update_fw_ddb_link(struct scsi_qla_host *ha,
6960 struct list_head *list_ddb,
6961 struct dev_db_entry *fw_ddb_entry)
6962 {
6963 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
6964 uint16_t ddb_link;
6965
6966 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
6967
6968 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
6969 if (ddb_idx->fw_ddb_idx == ddb_link) {
6970 DEBUG2(ql4_printk(KERN_INFO, ha,
6971 "Updating NT parent idx from [%d] to [%d]\n",
6972 ddb_link, ddb_idx->flash_ddb_idx));
6973 fw_ddb_entry->ddb_link =
6974 cpu_to_le16(ddb_idx->flash_ddb_idx);
6975 return;
6976 }
6977 }
6978 }
6979
6980 static void qla4xxx_build_nt_list(struct scsi_qla_host *ha,
6981 struct list_head *list_nt,
6982 struct list_head *list_st,
6983 int is_reset)
6984 {
6985 struct dev_db_entry *fw_ddb_entry;
6986 struct ddb_entry *ddb_entry = NULL;
6987 dma_addr_t fw_ddb_dma;
6988 int max_ddbs;
6989 int fw_idx_size;
6990 int ret;
6991 uint32_t idx = 0, next_idx = 0;
6992 uint32_t state = 0, conn_err = 0;
6993 uint32_t ddb_idx = -1;
6994 uint16_t conn_id = 0;
6995 uint16_t ddb_link = -1;
6996 struct qla_ddb_index *nt_ddb_idx;
6997
6998 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
6999 &fw_ddb_dma);
7000 if (fw_ddb_entry == NULL) {
7001 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
7002 goto exit_nt_list;
7003 }
7004 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
7005 MAX_DEV_DB_ENTRIES;
7006 fw_idx_size = sizeof(struct qla_ddb_index);
7007
7008 for (idx = 0; idx < max_ddbs; idx = next_idx) {
7009 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
7010 NULL, &next_idx, &state,
7011 &conn_err, NULL, &conn_id);
7012 if (ret == QLA_ERROR)
7013 break;
7014
7015 if (qla4xxx_verify_boot_idx(ha, idx) != QLA_SUCCESS)
7016 goto continue_next_nt;
7017
7018 /* Check if NT, then add to list it */
7019 if (strlen((char *) fw_ddb_entry->iscsi_name) == 0)
7020 goto continue_next_nt;
7021
7022 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
7023 if (ddb_link < max_ddbs)
7024 qla4xxx_update_fw_ddb_link(ha, list_st, fw_ddb_entry);
7025
7026 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE ||
7027 state == DDB_DS_SESSION_FAILED) &&
7028 (is_reset == INIT_ADAPTER))
7029 goto continue_next_nt;
7030
7031 DEBUG2(ql4_printk(KERN_INFO, ha,
7032 "Adding DDB to session = 0x%x\n", idx));
7033
7034 if (is_reset == INIT_ADAPTER) {
7035 nt_ddb_idx = vmalloc(fw_idx_size);
7036 if (!nt_ddb_idx)
7037 break;
7038
7039 nt_ddb_idx->fw_ddb_idx = idx;
7040
7041 /* Copy original isid as it may get updated in function
7042 * qla4xxx_update_isid(). We need original isid in
7043 * function qla4xxx_compare_tuple_ddb to find duplicate
7044 * target */
7045 memcpy(&nt_ddb_idx->flash_isid[0],
7046 &fw_ddb_entry->isid[0],
7047 sizeof(nt_ddb_idx->flash_isid));
7048
7049 ret = qla4xxx_is_flash_ddb_exists(ha, list_nt,
7050 fw_ddb_entry);
7051 if (ret == QLA_SUCCESS) {
7052 /* free nt_ddb_idx and do not add to list_nt */
7053 vfree(nt_ddb_idx);
7054 goto continue_next_nt;
7055 }
7056
7057 /* Copy updated isid */
7058 memcpy(&nt_ddb_idx->fw_ddb, fw_ddb_entry,
7059 sizeof(struct dev_db_entry));
7060
7061 list_add_tail(&nt_ddb_idx->list, list_nt);
7062 } else if (is_reset == RESET_ADAPTER) {
7063 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry,
7064 &ddb_idx);
7065 if (ret == QLA_SUCCESS) {
7066 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha,
7067 ddb_idx);
7068 if (ddb_entry != NULL)
7069 qla4xxx_update_sess_disc_idx(ha,
7070 ddb_entry,
7071 fw_ddb_entry);
7072 goto continue_next_nt;
7073 }
7074 }
7075
7076 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, is_reset, idx);
7077 if (ret == QLA_ERROR)
7078 goto exit_nt_list;
7079
7080 continue_next_nt:
7081 if (next_idx == 0)
7082 break;
7083 }
7084
7085 exit_nt_list:
7086 if (fw_ddb_entry)
7087 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
7088 }
7089
7090 static void qla4xxx_build_new_nt_list(struct scsi_qla_host *ha,
7091 struct list_head *list_nt,
7092 uint16_t target_id)
7093 {
7094 struct dev_db_entry *fw_ddb_entry;
7095 dma_addr_t fw_ddb_dma;
7096 int max_ddbs;
7097 int fw_idx_size;
7098 int ret;
7099 uint32_t idx = 0, next_idx = 0;
7100 uint32_t state = 0, conn_err = 0;
7101 uint16_t conn_id = 0;
7102 struct qla_ddb_index *nt_ddb_idx;
7103
7104 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
7105 &fw_ddb_dma);
7106 if (fw_ddb_entry == NULL) {
7107 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
7108 goto exit_new_nt_list;
7109 }
7110 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
7111 MAX_DEV_DB_ENTRIES;
7112 fw_idx_size = sizeof(struct qla_ddb_index);
7113
7114 for (idx = 0; idx < max_ddbs; idx = next_idx) {
7115 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
7116 NULL, &next_idx, &state,
7117 &conn_err, NULL, &conn_id);
7118 if (ret == QLA_ERROR)
7119 break;
7120
7121 /* Check if NT, then add it to list */
7122 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0)
7123 goto continue_next_new_nt;
7124
7125 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE))
7126 goto continue_next_new_nt;
7127
7128 DEBUG2(ql4_printk(KERN_INFO, ha,
7129 "Adding DDB to session = 0x%x\n", idx));
7130
7131 nt_ddb_idx = vmalloc(fw_idx_size);
7132 if (!nt_ddb_idx)
7133 break;
7134
7135 nt_ddb_idx->fw_ddb_idx = idx;
7136
7137 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL);
7138 if (ret == QLA_SUCCESS) {
7139 /* free nt_ddb_idx and do not add to list_nt */
7140 vfree(nt_ddb_idx);
7141 goto continue_next_new_nt;
7142 }
7143
7144 if (target_id < max_ddbs)
7145 fw_ddb_entry->ddb_link = cpu_to_le16(target_id);
7146
7147 list_add_tail(&nt_ddb_idx->list, list_nt);
7148
7149 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER,
7150 idx);
7151 if (ret == QLA_ERROR)
7152 goto exit_new_nt_list;
7153
7154 continue_next_new_nt:
7155 if (next_idx == 0)
7156 break;
7157 }
7158
7159 exit_new_nt_list:
7160 if (fw_ddb_entry)
7161 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
7162 }
7163
7164 /**
7165 * qla4xxx_sysfs_ddb_is_non_persistent - check for non-persistence of ddb entry
7166 * @dev: dev associated with the sysfs entry
7167 * @data: pointer to flashnode session object
7168 *
7169 * Returns:
7170 * 1: if flashnode entry is non-persistent
7171 * 0: if flashnode entry is persistent
7172 **/
7173 static int qla4xxx_sysfs_ddb_is_non_persistent(struct device *dev, void *data)
7174 {
7175 struct iscsi_bus_flash_session *fnode_sess;
7176
7177 if (!iscsi_flashnode_bus_match(dev, NULL))
7178 return 0;
7179
7180 fnode_sess = iscsi_dev_to_flash_session(dev);
7181
7182 return (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT);
7183 }
7184
7185 /**
7186 * qla4xxx_sysfs_ddb_tgt_create - Create sysfs entry for target
7187 * @ha: pointer to host
7188 * @fw_ddb_entry: flash ddb data
7189 * @idx: target index
7190 * @user: if set then this call is made from userland else from kernel
7191 *
7192 * Returns:
7193 * On sucess: QLA_SUCCESS
7194 * On failure: QLA_ERROR
7195 *
7196 * This create separate sysfs entries for session and connection attributes of
7197 * the given fw ddb entry.
7198 * If this is invoked as a result of a userspace call then the entry is marked
7199 * as nonpersistent using flash_state field.
7200 **/
7201 static int qla4xxx_sysfs_ddb_tgt_create(struct scsi_qla_host *ha,
7202 struct dev_db_entry *fw_ddb_entry,
7203 uint16_t *idx, int user)
7204 {
7205 struct iscsi_bus_flash_session *fnode_sess = NULL;
7206 struct iscsi_bus_flash_conn *fnode_conn = NULL;
7207 int rc = QLA_ERROR;
7208
7209 fnode_sess = iscsi_create_flashnode_sess(ha->host, *idx,
7210 &qla4xxx_iscsi_transport, 0);
7211 if (!fnode_sess) {
7212 ql4_printk(KERN_ERR, ha,
7213 "%s: Unable to create session sysfs entry for flashnode %d of host%lu\n",
7214 __func__, *idx, ha->host_no);
7215 goto exit_tgt_create;
7216 }
7217
7218 fnode_conn = iscsi_create_flashnode_conn(ha->host, fnode_sess,
7219 &qla4xxx_iscsi_transport, 0);
7220 if (!fnode_conn) {
7221 ql4_printk(KERN_ERR, ha,
7222 "%s: Unable to create conn sysfs entry for flashnode %d of host%lu\n",
7223 __func__, *idx, ha->host_no);
7224 goto free_sess;
7225 }
7226
7227 if (user) {
7228 fnode_sess->flash_state = DEV_DB_NON_PERSISTENT;
7229 } else {
7230 fnode_sess->flash_state = DEV_DB_PERSISTENT;
7231
7232 if (*idx == ha->pri_ddb_idx || *idx == ha->sec_ddb_idx)
7233 fnode_sess->is_boot_target = 1;
7234 else
7235 fnode_sess->is_boot_target = 0;
7236 }
7237
7238 rc = qla4xxx_copy_from_fwddb_param(fnode_sess, fnode_conn,
7239 fw_ddb_entry);
7240
7241 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n",
7242 __func__, fnode_sess->dev.kobj.name);
7243
7244 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n",
7245 __func__, fnode_conn->dev.kobj.name);
7246
7247 return QLA_SUCCESS;
7248
7249 free_sess:
7250 iscsi_destroy_flashnode_sess(fnode_sess);
7251
7252 exit_tgt_create:
7253 return QLA_ERROR;
7254 }
7255
7256 /**
7257 * qla4xxx_sysfs_ddb_add - Add new ddb entry in flash
7258 * @shost: pointer to host
7259 * @buf: type of ddb entry (ipv4/ipv6)
7260 * @len: length of buf
7261 *
7262 * This creates new ddb entry in the flash by finding first free index and
7263 * storing default ddb there. And then create sysfs entry for the new ddb entry.
7264 **/
7265 static int qla4xxx_sysfs_ddb_add(struct Scsi_Host *shost, const char *buf,
7266 int len)
7267 {
7268 struct scsi_qla_host *ha = to_qla_host(shost);
7269 struct dev_db_entry *fw_ddb_entry = NULL;
7270 dma_addr_t fw_ddb_entry_dma;
7271 struct device *dev;
7272 uint16_t idx = 0;
7273 uint16_t max_ddbs = 0;
7274 uint32_t options = 0;
7275 uint32_t rval = QLA_ERROR;
7276
7277 if (strncasecmp(PORTAL_TYPE_IPV4, buf, 4) &&
7278 strncasecmp(PORTAL_TYPE_IPV6, buf, 4)) {
7279 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Invalid portal type\n",
7280 __func__));
7281 goto exit_ddb_add;
7282 }
7283
7284 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES :
7285 MAX_DEV_DB_ENTRIES;
7286
7287 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7288 &fw_ddb_entry_dma, GFP_KERNEL);
7289 if (!fw_ddb_entry) {
7290 DEBUG2(ql4_printk(KERN_ERR, ha,
7291 "%s: Unable to allocate dma buffer\n",
7292 __func__));
7293 goto exit_ddb_add;
7294 }
7295
7296 dev = iscsi_find_flashnode_sess(ha->host, NULL,
7297 qla4xxx_sysfs_ddb_is_non_persistent);
7298 if (dev) {
7299 ql4_printk(KERN_ERR, ha,
7300 "%s: A non-persistent entry %s found\n",
7301 __func__, dev->kobj.name);
7302 put_device(dev);
7303 goto exit_ddb_add;
7304 }
7305
7306 /* Index 0 and 1 are reserved for boot target entries */
7307 for (idx = 2; idx < max_ddbs; idx++) {
7308 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry,
7309 fw_ddb_entry_dma, idx))
7310 break;
7311 }
7312
7313 if (idx == max_ddbs)
7314 goto exit_ddb_add;
7315
7316 if (!strncasecmp("ipv6", buf, 4))
7317 options |= IPV6_DEFAULT_DDB_ENTRY;
7318
7319 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
7320 if (rval == QLA_ERROR)
7321 goto exit_ddb_add;
7322
7323 rval = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 1);
7324
7325 exit_ddb_add:
7326 if (fw_ddb_entry)
7327 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7328 fw_ddb_entry, fw_ddb_entry_dma);
7329 if (rval == QLA_SUCCESS)
7330 return idx;
7331 else
7332 return -EIO;
7333 }
7334
7335 /**
7336 * qla4xxx_sysfs_ddb_apply - write the target ddb contents to Flash
7337 * @fnode_sess: pointer to session attrs of flash ddb entry
7338 * @fnode_conn: pointer to connection attrs of flash ddb entry
7339 *
7340 * This writes the contents of target ddb buffer to Flash with a valid cookie
7341 * value in order to make the ddb entry persistent.
7342 **/
7343 static int qla4xxx_sysfs_ddb_apply(struct iscsi_bus_flash_session *fnode_sess,
7344 struct iscsi_bus_flash_conn *fnode_conn)
7345 {
7346 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7347 struct scsi_qla_host *ha = to_qla_host(shost);
7348 uint32_t dev_db_start_offset = FLASH_OFFSET_DB_INFO;
7349 struct dev_db_entry *fw_ddb_entry = NULL;
7350 dma_addr_t fw_ddb_entry_dma;
7351 uint32_t options = 0;
7352 int rval = 0;
7353
7354 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7355 &fw_ddb_entry_dma, GFP_KERNEL);
7356 if (!fw_ddb_entry) {
7357 DEBUG2(ql4_printk(KERN_ERR, ha,
7358 "%s: Unable to allocate dma buffer\n",
7359 __func__));
7360 rval = -ENOMEM;
7361 goto exit_ddb_apply;
7362 }
7363
7364 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7365 options |= IPV6_DEFAULT_DDB_ENTRY;
7366
7367 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
7368 if (rval == QLA_ERROR)
7369 goto exit_ddb_apply;
7370
7371 dev_db_start_offset += (fnode_sess->target_id *
7372 sizeof(*fw_ddb_entry));
7373
7374 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry);
7375 fw_ddb_entry->cookie = DDB_VALID_COOKIE;
7376
7377 rval = qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset,
7378 sizeof(*fw_ddb_entry), FLASH_OPT_RMW_COMMIT);
7379
7380 if (rval == QLA_SUCCESS) {
7381 fnode_sess->flash_state = DEV_DB_PERSISTENT;
7382 ql4_printk(KERN_INFO, ha,
7383 "%s: flash node %u of host %lu written to flash\n",
7384 __func__, fnode_sess->target_id, ha->host_no);
7385 } else {
7386 rval = -EIO;
7387 ql4_printk(KERN_ERR, ha,
7388 "%s: Error while writing flash node %u of host %lu to flash\n",
7389 __func__, fnode_sess->target_id, ha->host_no);
7390 }
7391
7392 exit_ddb_apply:
7393 if (fw_ddb_entry)
7394 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7395 fw_ddb_entry, fw_ddb_entry_dma);
7396 return rval;
7397 }
7398
7399 static ssize_t qla4xxx_sysfs_ddb_conn_open(struct scsi_qla_host *ha,
7400 struct dev_db_entry *fw_ddb_entry,
7401 uint16_t idx)
7402 {
7403 struct dev_db_entry *ddb_entry = NULL;
7404 dma_addr_t ddb_entry_dma;
7405 unsigned long wtime;
7406 uint32_t mbx_sts = 0;
7407 uint32_t state = 0, conn_err = 0;
7408 uint16_t tmo = 0;
7409 int ret = 0;
7410
7411 ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*ddb_entry),
7412 &ddb_entry_dma, GFP_KERNEL);
7413 if (!ddb_entry) {
7414 DEBUG2(ql4_printk(KERN_ERR, ha,
7415 "%s: Unable to allocate dma buffer\n",
7416 __func__));
7417 return QLA_ERROR;
7418 }
7419
7420 memcpy(ddb_entry, fw_ddb_entry, sizeof(*ddb_entry));
7421
7422 ret = qla4xxx_set_ddb_entry(ha, idx, ddb_entry_dma, &mbx_sts);
7423 if (ret != QLA_SUCCESS) {
7424 DEBUG2(ql4_printk(KERN_ERR, ha,
7425 "%s: Unable to set ddb entry for index %d\n",
7426 __func__, idx));
7427 goto exit_ddb_conn_open;
7428 }
7429
7430 qla4xxx_conn_open(ha, idx);
7431
7432 /* To ensure that sendtargets is done, wait for at least 12 secs */
7433 tmo = ((ha->def_timeout > LOGIN_TOV) &&
7434 (ha->def_timeout < LOGIN_TOV * 10) ?
7435 ha->def_timeout : LOGIN_TOV);
7436
7437 DEBUG2(ql4_printk(KERN_INFO, ha,
7438 "Default time to wait for login to ddb %d\n", tmo));
7439
7440 wtime = jiffies + (HZ * tmo);
7441 do {
7442 ret = qla4xxx_get_fwddb_entry(ha, idx, NULL, 0, NULL,
7443 NULL, &state, &conn_err, NULL,
7444 NULL);
7445 if (ret == QLA_ERROR)
7446 continue;
7447
7448 if (state == DDB_DS_NO_CONNECTION_ACTIVE ||
7449 state == DDB_DS_SESSION_FAILED)
7450 break;
7451
7452 schedule_timeout_uninterruptible(HZ / 10);
7453 } while (time_after(wtime, jiffies));
7454
7455 exit_ddb_conn_open:
7456 if (ddb_entry)
7457 dma_free_coherent(&ha->pdev->dev, sizeof(*ddb_entry),
7458 ddb_entry, ddb_entry_dma);
7459 return ret;
7460 }
7461
7462 static int qla4xxx_ddb_login_st(struct scsi_qla_host *ha,
7463 struct dev_db_entry *fw_ddb_entry,
7464 uint16_t target_id)
7465 {
7466 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
7467 struct list_head list_nt;
7468 uint16_t ddb_index;
7469 int ret = 0;
7470
7471 if (test_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags)) {
7472 ql4_printk(KERN_WARNING, ha,
7473 "%s: A discovery already in progress!\n", __func__);
7474 return QLA_ERROR;
7475 }
7476
7477 INIT_LIST_HEAD(&list_nt);
7478
7479 set_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags);
7480
7481 ret = qla4xxx_get_ddb_index(ha, &ddb_index);
7482 if (ret == QLA_ERROR)
7483 goto exit_login_st_clr_bit;
7484
7485 ret = qla4xxx_sysfs_ddb_conn_open(ha, fw_ddb_entry, ddb_index);
7486 if (ret == QLA_ERROR)
7487 goto exit_login_st;
7488
7489 qla4xxx_build_new_nt_list(ha, &list_nt, target_id);
7490
7491 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, &list_nt, list) {
7492 list_del_init(&ddb_idx->list);
7493 qla4xxx_clear_ddb_entry(ha, ddb_idx->fw_ddb_idx);
7494 vfree(ddb_idx);
7495 }
7496
7497 exit_login_st:
7498 if (qla4xxx_clear_ddb_entry(ha, ddb_index) == QLA_ERROR) {
7499 ql4_printk(KERN_ERR, ha,
7500 "Unable to clear DDB index = 0x%x\n", ddb_index);
7501 }
7502
7503 clear_bit(ddb_index, ha->ddb_idx_map);
7504
7505 exit_login_st_clr_bit:
7506 clear_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags);
7507 return ret;
7508 }
7509
7510 static int qla4xxx_ddb_login_nt(struct scsi_qla_host *ha,
7511 struct dev_db_entry *fw_ddb_entry,
7512 uint16_t idx)
7513 {
7514 int ret = QLA_ERROR;
7515
7516 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL);
7517 if (ret != QLA_SUCCESS)
7518 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER,
7519 idx);
7520 else
7521 ret = -EPERM;
7522
7523 return ret;
7524 }
7525
7526 /**
7527 * qla4xxx_sysfs_ddb_login - Login to the specified target
7528 * @fnode_sess: pointer to session attrs of flash ddb entry
7529 * @fnode_conn: pointer to connection attrs of flash ddb entry
7530 *
7531 * This logs in to the specified target
7532 **/
7533 static int qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess,
7534 struct iscsi_bus_flash_conn *fnode_conn)
7535 {
7536 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7537 struct scsi_qla_host *ha = to_qla_host(shost);
7538 struct dev_db_entry *fw_ddb_entry = NULL;
7539 dma_addr_t fw_ddb_entry_dma;
7540 uint32_t options = 0;
7541 int ret = 0;
7542
7543 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT) {
7544 ql4_printk(KERN_ERR, ha,
7545 "%s: Target info is not persistent\n", __func__);
7546 ret = -EIO;
7547 goto exit_ddb_login;
7548 }
7549
7550 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7551 &fw_ddb_entry_dma, GFP_KERNEL);
7552 if (!fw_ddb_entry) {
7553 DEBUG2(ql4_printk(KERN_ERR, ha,
7554 "%s: Unable to allocate dma buffer\n",
7555 __func__));
7556 ret = -ENOMEM;
7557 goto exit_ddb_login;
7558 }
7559
7560 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7561 options |= IPV6_DEFAULT_DDB_ENTRY;
7562
7563 ret = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
7564 if (ret == QLA_ERROR)
7565 goto exit_ddb_login;
7566
7567 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry);
7568 fw_ddb_entry->cookie = DDB_VALID_COOKIE;
7569
7570 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0)
7571 ret = qla4xxx_ddb_login_st(ha, fw_ddb_entry,
7572 fnode_sess->target_id);
7573 else
7574 ret = qla4xxx_ddb_login_nt(ha, fw_ddb_entry,
7575 fnode_sess->target_id);
7576
7577 if (ret > 0)
7578 ret = -EIO;
7579
7580 exit_ddb_login:
7581 if (fw_ddb_entry)
7582 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7583 fw_ddb_entry, fw_ddb_entry_dma);
7584 return ret;
7585 }
7586
7587 /**
7588 * qla4xxx_sysfs_ddb_logout_sid - Logout session for the specified target
7589 * @cls_sess: pointer to session to be logged out
7590 *
7591 * This performs session log out from the specified target
7592 **/
7593 static int qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess)
7594 {
7595 struct iscsi_session *sess;
7596 struct ddb_entry *ddb_entry = NULL;
7597 struct scsi_qla_host *ha;
7598 struct dev_db_entry *fw_ddb_entry = NULL;
7599 dma_addr_t fw_ddb_entry_dma;
7600 unsigned long flags;
7601 unsigned long wtime;
7602 uint32_t ddb_state;
7603 int options;
7604 int ret = 0;
7605
7606 sess = cls_sess->dd_data;
7607 ddb_entry = sess->dd_data;
7608 ha = ddb_entry->ha;
7609
7610 if (ddb_entry->ddb_type != FLASH_DDB) {
7611 ql4_printk(KERN_ERR, ha, "%s: Not a flash node session\n",
7612 __func__);
7613 ret = -ENXIO;
7614 goto exit_ddb_logout;
7615 }
7616
7617 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) {
7618 ql4_printk(KERN_ERR, ha,
7619 "%s: Logout from boot target entry is not permitted.\n",
7620 __func__);
7621 ret = -EPERM;
7622 goto exit_ddb_logout;
7623 }
7624
7625 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7626 &fw_ddb_entry_dma, GFP_KERNEL);
7627 if (!fw_ddb_entry) {
7628 ql4_printk(KERN_ERR, ha,
7629 "%s: Unable to allocate dma buffer\n", __func__);
7630 ret = -ENOMEM;
7631 goto exit_ddb_logout;
7632 }
7633
7634 if (test_and_set_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags))
7635 goto ddb_logout_init;
7636
7637 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
7638 fw_ddb_entry, fw_ddb_entry_dma,
7639 NULL, NULL, &ddb_state, NULL,
7640 NULL, NULL);
7641 if (ret == QLA_ERROR)
7642 goto ddb_logout_init;
7643
7644 if (ddb_state == DDB_DS_SESSION_ACTIVE)
7645 goto ddb_logout_init;
7646
7647 /* wait until next relogin is triggered using DF_RELOGIN and
7648 * clear DF_RELOGIN to avoid invocation of further relogin
7649 */
7650 wtime = jiffies + (HZ * RELOGIN_TOV);
7651 do {
7652 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags))
7653 goto ddb_logout_init;
7654
7655 schedule_timeout_uninterruptible(HZ);
7656 } while ((time_after(wtime, jiffies)));
7657
7658 ddb_logout_init:
7659 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY);
7660 atomic_set(&ddb_entry->relogin_timer, 0);
7661
7662 options = LOGOUT_OPTION_CLOSE_SESSION;
7663 qla4xxx_session_logout_ddb(ha, ddb_entry, options);
7664
7665 memset(fw_ddb_entry, 0, sizeof(*fw_ddb_entry));
7666 wtime = jiffies + (HZ * LOGOUT_TOV);
7667 do {
7668 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
7669 fw_ddb_entry, fw_ddb_entry_dma,
7670 NULL, NULL, &ddb_state, NULL,
7671 NULL, NULL);
7672 if (ret == QLA_ERROR)
7673 goto ddb_logout_clr_sess;
7674
7675 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) ||
7676 (ddb_state == DDB_DS_SESSION_FAILED))
7677 goto ddb_logout_clr_sess;
7678
7679 schedule_timeout_uninterruptible(HZ);
7680 } while ((time_after(wtime, jiffies)));
7681
7682 ddb_logout_clr_sess:
7683 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
7684 /*
7685 * we have decremented the reference count of the driver
7686 * when we setup the session to have the driver unload
7687 * to be seamless without actually destroying the
7688 * session
7689 **/
7690 try_module_get(qla4xxx_iscsi_transport.owner);
7691 iscsi_destroy_endpoint(ddb_entry->conn->ep);
7692
7693 spin_lock_irqsave(&ha->hardware_lock, flags);
7694 qla4xxx_free_ddb(ha, ddb_entry);
7695 clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map);
7696 spin_unlock_irqrestore(&ha->hardware_lock, flags);
7697
7698 iscsi_session_teardown(ddb_entry->sess);
7699
7700 clear_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags);
7701 ret = QLA_SUCCESS;
7702
7703 exit_ddb_logout:
7704 if (fw_ddb_entry)
7705 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7706 fw_ddb_entry, fw_ddb_entry_dma);
7707 return ret;
7708 }
7709
7710 /**
7711 * qla4xxx_sysfs_ddb_logout - Logout from the specified target
7712 * @fnode_sess: pointer to session attrs of flash ddb entry
7713 * @fnode_conn: pointer to connection attrs of flash ddb entry
7714 *
7715 * This performs log out from the specified target
7716 **/
7717 static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess,
7718 struct iscsi_bus_flash_conn *fnode_conn)
7719 {
7720 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7721 struct scsi_qla_host *ha = to_qla_host(shost);
7722 struct ql4_tuple_ddb *flash_tddb = NULL;
7723 struct ql4_tuple_ddb *tmp_tddb = NULL;
7724 struct dev_db_entry *fw_ddb_entry = NULL;
7725 struct ddb_entry *ddb_entry = NULL;
7726 dma_addr_t fw_ddb_dma;
7727 uint32_t next_idx = 0;
7728 uint32_t state = 0, conn_err = 0;
7729 uint16_t conn_id = 0;
7730 int idx, index;
7731 int status, ret = 0;
7732
7733 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
7734 &fw_ddb_dma);
7735 if (fw_ddb_entry == NULL) {
7736 ql4_printk(KERN_ERR, ha, "%s:Out of memory\n", __func__);
7737 ret = -ENOMEM;
7738 goto exit_ddb_logout;
7739 }
7740
7741 flash_tddb = vzalloc(sizeof(*flash_tddb));
7742 if (!flash_tddb) {
7743 ql4_printk(KERN_WARNING, ha,
7744 "%s:Memory Allocation failed.\n", __func__);
7745 ret = -ENOMEM;
7746 goto exit_ddb_logout;
7747 }
7748
7749 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
7750 if (!tmp_tddb) {
7751 ql4_printk(KERN_WARNING, ha,
7752 "%s:Memory Allocation failed.\n", __func__);
7753 ret = -ENOMEM;
7754 goto exit_ddb_logout;
7755 }
7756
7757 if (!fnode_sess->targetname) {
7758 ql4_printk(KERN_ERR, ha,
7759 "%s:Cannot logout from SendTarget entry\n",
7760 __func__);
7761 ret = -EPERM;
7762 goto exit_ddb_logout;
7763 }
7764
7765 if (fnode_sess->is_boot_target) {
7766 ql4_printk(KERN_ERR, ha,
7767 "%s: Logout from boot target entry is not permitted.\n",
7768 __func__);
7769 ret = -EPERM;
7770 goto exit_ddb_logout;
7771 }
7772
7773 strlcpy(flash_tddb->iscsi_name, fnode_sess->targetname,
7774 ISCSI_NAME_SIZE);
7775
7776 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7777 sprintf(flash_tddb->ip_addr, "%pI6", fnode_conn->ipaddress);
7778 else
7779 sprintf(flash_tddb->ip_addr, "%pI4", fnode_conn->ipaddress);
7780
7781 flash_tddb->tpgt = fnode_sess->tpgt;
7782 flash_tddb->port = fnode_conn->port;
7783
7784 COPY_ISID(flash_tddb->isid, fnode_sess->isid);
7785
7786 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
7787 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
7788 if (ddb_entry == NULL)
7789 continue;
7790
7791 if (ddb_entry->ddb_type != FLASH_DDB)
7792 continue;
7793
7794 index = ddb_entry->sess->target_id;
7795 status = qla4xxx_get_fwddb_entry(ha, index, fw_ddb_entry,
7796 fw_ddb_dma, NULL, &next_idx,
7797 &state, &conn_err, NULL,
7798 &conn_id);
7799 if (status == QLA_ERROR) {
7800 ret = -ENOMEM;
7801 break;
7802 }
7803
7804 qla4xxx_convert_param_ddb(fw_ddb_entry, tmp_tddb, NULL);
7805
7806 status = qla4xxx_compare_tuple_ddb(ha, flash_tddb, tmp_tddb,
7807 true);
7808 if (status == QLA_SUCCESS) {
7809 ret = qla4xxx_sysfs_ddb_logout_sid(ddb_entry->sess);
7810 break;
7811 }
7812 }
7813
7814 if (idx == MAX_DDB_ENTRIES)
7815 ret = -ESRCH;
7816
7817 exit_ddb_logout:
7818 if (flash_tddb)
7819 vfree(flash_tddb);
7820 if (tmp_tddb)
7821 vfree(tmp_tddb);
7822 if (fw_ddb_entry)
7823 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
7824
7825 return ret;
7826 }
7827
7828 static int
7829 qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session *fnode_sess,
7830 int param, char *buf)
7831 {
7832 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7833 struct scsi_qla_host *ha = to_qla_host(shost);
7834 struct iscsi_bus_flash_conn *fnode_conn;
7835 struct ql4_chap_table chap_tbl;
7836 struct device *dev;
7837 int parent_type;
7838 int rc = 0;
7839
7840 dev = iscsi_find_flashnode_conn(fnode_sess);
7841 if (!dev)
7842 return -EIO;
7843
7844 fnode_conn = iscsi_dev_to_flash_conn(dev);
7845
7846 switch (param) {
7847 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6:
7848 rc = sprintf(buf, "%u\n", fnode_conn->is_fw_assigned_ipv6);
7849 break;
7850 case ISCSI_FLASHNODE_PORTAL_TYPE:
7851 rc = sprintf(buf, "%s\n", fnode_sess->portal_type);
7852 break;
7853 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE:
7854 rc = sprintf(buf, "%u\n", fnode_sess->auto_snd_tgt_disable);
7855 break;
7856 case ISCSI_FLASHNODE_DISCOVERY_SESS:
7857 rc = sprintf(buf, "%u\n", fnode_sess->discovery_sess);
7858 break;
7859 case ISCSI_FLASHNODE_ENTRY_EN:
7860 rc = sprintf(buf, "%u\n", fnode_sess->entry_state);
7861 break;
7862 case ISCSI_FLASHNODE_HDR_DGST_EN:
7863 rc = sprintf(buf, "%u\n", fnode_conn->hdrdgst_en);
7864 break;
7865 case ISCSI_FLASHNODE_DATA_DGST_EN:
7866 rc = sprintf(buf, "%u\n", fnode_conn->datadgst_en);
7867 break;
7868 case ISCSI_FLASHNODE_IMM_DATA_EN:
7869 rc = sprintf(buf, "%u\n", fnode_sess->imm_data_en);
7870 break;
7871 case ISCSI_FLASHNODE_INITIAL_R2T_EN:
7872 rc = sprintf(buf, "%u\n", fnode_sess->initial_r2t_en);
7873 break;
7874 case ISCSI_FLASHNODE_DATASEQ_INORDER:
7875 rc = sprintf(buf, "%u\n", fnode_sess->dataseq_inorder_en);
7876 break;
7877 case ISCSI_FLASHNODE_PDU_INORDER:
7878 rc = sprintf(buf, "%u\n", fnode_sess->pdu_inorder_en);
7879 break;
7880 case ISCSI_FLASHNODE_CHAP_AUTH_EN:
7881 rc = sprintf(buf, "%u\n", fnode_sess->chap_auth_en);
7882 break;
7883 case ISCSI_FLASHNODE_SNACK_REQ_EN:
7884 rc = sprintf(buf, "%u\n", fnode_conn->snack_req_en);
7885 break;
7886 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN:
7887 rc = sprintf(buf, "%u\n", fnode_sess->discovery_logout_en);
7888 break;
7889 case ISCSI_FLASHNODE_BIDI_CHAP_EN:
7890 rc = sprintf(buf, "%u\n", fnode_sess->bidi_chap_en);
7891 break;
7892 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL:
7893 rc = sprintf(buf, "%u\n", fnode_sess->discovery_auth_optional);
7894 break;
7895 case ISCSI_FLASHNODE_ERL:
7896 rc = sprintf(buf, "%u\n", fnode_sess->erl);
7897 break;
7898 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT:
7899 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_stat);
7900 break;
7901 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE:
7902 rc = sprintf(buf, "%u\n", fnode_conn->tcp_nagle_disable);
7903 break;
7904 case ISCSI_FLASHNODE_TCP_WSF_DISABLE:
7905 rc = sprintf(buf, "%u\n", fnode_conn->tcp_wsf_disable);
7906 break;
7907 case ISCSI_FLASHNODE_TCP_TIMER_SCALE:
7908 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timer_scale);
7909 break;
7910 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN:
7911 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_en);
7912 break;
7913 case ISCSI_FLASHNODE_IP_FRAG_DISABLE:
7914 rc = sprintf(buf, "%u\n", fnode_conn->fragment_disable);
7915 break;
7916 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH:
7917 rc = sprintf(buf, "%u\n", fnode_conn->max_recv_dlength);
7918 break;
7919 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH:
7920 rc = sprintf(buf, "%u\n", fnode_conn->max_xmit_dlength);
7921 break;
7922 case ISCSI_FLASHNODE_FIRST_BURST:
7923 rc = sprintf(buf, "%u\n", fnode_sess->first_burst);
7924 break;
7925 case ISCSI_FLASHNODE_DEF_TIME2WAIT:
7926 rc = sprintf(buf, "%u\n", fnode_sess->time2wait);
7927 break;
7928 case ISCSI_FLASHNODE_DEF_TIME2RETAIN:
7929 rc = sprintf(buf, "%u\n", fnode_sess->time2retain);
7930 break;
7931 case ISCSI_FLASHNODE_MAX_R2T:
7932 rc = sprintf(buf, "%u\n", fnode_sess->max_r2t);
7933 break;
7934 case ISCSI_FLASHNODE_KEEPALIVE_TMO:
7935 rc = sprintf(buf, "%u\n", fnode_conn->keepalive_timeout);
7936 break;
7937 case ISCSI_FLASHNODE_ISID:
7938 rc = sprintf(buf, "%pm\n", fnode_sess->isid);
7939 break;
7940 case ISCSI_FLASHNODE_TSID:
7941 rc = sprintf(buf, "%u\n", fnode_sess->tsid);
7942 break;
7943 case ISCSI_FLASHNODE_PORT:
7944 rc = sprintf(buf, "%d\n", fnode_conn->port);
7945 break;
7946 case ISCSI_FLASHNODE_MAX_BURST:
7947 rc = sprintf(buf, "%u\n", fnode_sess->max_burst);
7948 break;
7949 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO:
7950 rc = sprintf(buf, "%u\n",
7951 fnode_sess->default_taskmgmt_timeout);
7952 break;
7953 case ISCSI_FLASHNODE_IPADDR:
7954 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7955 rc = sprintf(buf, "%pI6\n", fnode_conn->ipaddress);
7956 else
7957 rc = sprintf(buf, "%pI4\n", fnode_conn->ipaddress);
7958 break;
7959 case ISCSI_FLASHNODE_ALIAS:
7960 if (fnode_sess->targetalias)
7961 rc = sprintf(buf, "%s\n", fnode_sess->targetalias);
7962 else
7963 rc = sprintf(buf, "\n");
7964 break;
7965 case ISCSI_FLASHNODE_REDIRECT_IPADDR:
7966 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7967 rc = sprintf(buf, "%pI6\n",
7968 fnode_conn->redirect_ipaddr);
7969 else
7970 rc = sprintf(buf, "%pI4\n",
7971 fnode_conn->redirect_ipaddr);
7972 break;
7973 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE:
7974 rc = sprintf(buf, "%u\n", fnode_conn->max_segment_size);
7975 break;
7976 case ISCSI_FLASHNODE_LOCAL_PORT:
7977 rc = sprintf(buf, "%u\n", fnode_conn->local_port);
7978 break;
7979 case ISCSI_FLASHNODE_IPV4_TOS:
7980 rc = sprintf(buf, "%u\n", fnode_conn->ipv4_tos);
7981 break;
7982 case ISCSI_FLASHNODE_IPV6_TC:
7983 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7984 rc = sprintf(buf, "%u\n",
7985 fnode_conn->ipv6_traffic_class);
7986 else
7987 rc = sprintf(buf, "\n");
7988 break;
7989 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL:
7990 rc = sprintf(buf, "%u\n", fnode_conn->ipv6_flow_label);
7991 break;
7992 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6:
7993 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7994 rc = sprintf(buf, "%pI6\n",
7995 fnode_conn->link_local_ipv6_addr);
7996 else
7997 rc = sprintf(buf, "\n");
7998 break;
7999 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX:
8000 rc = sprintf(buf, "%u\n", fnode_sess->discovery_parent_idx);
8001 break;
8002 case ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE:
8003 if (fnode_sess->discovery_parent_type == DDB_ISNS)
8004 parent_type = ISCSI_DISC_PARENT_ISNS;
8005 else if (fnode_sess->discovery_parent_type == DDB_NO_LINK)
8006 parent_type = ISCSI_DISC_PARENT_UNKNOWN;
8007 else if (fnode_sess->discovery_parent_type < MAX_DDB_ENTRIES)
8008 parent_type = ISCSI_DISC_PARENT_SENDTGT;
8009 else
8010 parent_type = ISCSI_DISC_PARENT_UNKNOWN;
8011
8012 rc = sprintf(buf, "%s\n",
8013 iscsi_get_discovery_parent_name(parent_type));
8014 break;
8015 case ISCSI_FLASHNODE_NAME:
8016 if (fnode_sess->targetname)
8017 rc = sprintf(buf, "%s\n", fnode_sess->targetname);
8018 else
8019 rc = sprintf(buf, "\n");
8020 break;
8021 case ISCSI_FLASHNODE_TPGT:
8022 rc = sprintf(buf, "%u\n", fnode_sess->tpgt);
8023 break;
8024 case ISCSI_FLASHNODE_TCP_XMIT_WSF:
8025 rc = sprintf(buf, "%u\n", fnode_conn->tcp_xmit_wsf);
8026 break;
8027 case ISCSI_FLASHNODE_TCP_RECV_WSF:
8028 rc = sprintf(buf, "%u\n", fnode_conn->tcp_recv_wsf);
8029 break;
8030 case ISCSI_FLASHNODE_CHAP_OUT_IDX:
8031 rc = sprintf(buf, "%u\n", fnode_sess->chap_out_idx);
8032 break;
8033 case ISCSI_FLASHNODE_USERNAME:
8034 if (fnode_sess->chap_auth_en) {
8035 qla4xxx_get_uni_chap_at_index(ha,
8036 chap_tbl.name,
8037 chap_tbl.secret,
8038 fnode_sess->chap_out_idx);
8039 rc = sprintf(buf, "%s\n", chap_tbl.name);
8040 } else {
8041 rc = sprintf(buf, "\n");
8042 }
8043 break;
8044 case ISCSI_FLASHNODE_PASSWORD:
8045 if (fnode_sess->chap_auth_en) {
8046 qla4xxx_get_uni_chap_at_index(ha,
8047 chap_tbl.name,
8048 chap_tbl.secret,
8049 fnode_sess->chap_out_idx);
8050 rc = sprintf(buf, "%s\n", chap_tbl.secret);
8051 } else {
8052 rc = sprintf(buf, "\n");
8053 }
8054 break;
8055 case ISCSI_FLASHNODE_STATSN:
8056 rc = sprintf(buf, "%u\n", fnode_conn->statsn);
8057 break;
8058 case ISCSI_FLASHNODE_EXP_STATSN:
8059 rc = sprintf(buf, "%u\n", fnode_conn->exp_statsn);
8060 break;
8061 case ISCSI_FLASHNODE_IS_BOOT_TGT:
8062 rc = sprintf(buf, "%u\n", fnode_sess->is_boot_target);
8063 break;
8064 default:
8065 rc = -ENOSYS;
8066 break;
8067 }
8068
8069 put_device(dev);
8070 return rc;
8071 }
8072
8073 /**
8074 * qla4xxx_sysfs_ddb_set_param - Set parameter for firmware DDB entry
8075 * @fnode_sess: pointer to session attrs of flash ddb entry
8076 * @fnode_conn: pointer to connection attrs of flash ddb entry
8077 * @data: Parameters and their values to update
8078 * @len: len of data
8079 *
8080 * This sets the parameter of flash ddb entry and writes them to flash
8081 **/
8082 static int
8083 qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess,
8084 struct iscsi_bus_flash_conn *fnode_conn,
8085 void *data, int len)
8086 {
8087 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
8088 struct scsi_qla_host *ha = to_qla_host(shost);
8089 struct iscsi_flashnode_param_info *fnode_param;
8090 struct ql4_chap_table chap_tbl;
8091 struct nlattr *attr;
8092 uint16_t chap_out_idx = INVALID_ENTRY;
8093 int rc = QLA_ERROR;
8094 uint32_t rem = len;
8095
8096 memset((void *)&chap_tbl, 0, sizeof(chap_tbl));
8097 nla_for_each_attr(attr, data, len, rem) {
8098 fnode_param = nla_data(attr);
8099
8100 switch (fnode_param->param) {
8101 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6:
8102 fnode_conn->is_fw_assigned_ipv6 = fnode_param->value[0];
8103 break;
8104 case ISCSI_FLASHNODE_PORTAL_TYPE:
8105 memcpy(fnode_sess->portal_type, fnode_param->value,
8106 strlen(fnode_sess->portal_type));
8107 break;
8108 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE:
8109 fnode_sess->auto_snd_tgt_disable =
8110 fnode_param->value[0];
8111 break;
8112 case ISCSI_FLASHNODE_DISCOVERY_SESS:
8113 fnode_sess->discovery_sess = fnode_param->value[0];
8114 break;
8115 case ISCSI_FLASHNODE_ENTRY_EN:
8116 fnode_sess->entry_state = fnode_param->value[0];
8117 break;
8118 case ISCSI_FLASHNODE_HDR_DGST_EN:
8119 fnode_conn->hdrdgst_en = fnode_param->value[0];
8120 break;
8121 case ISCSI_FLASHNODE_DATA_DGST_EN:
8122 fnode_conn->datadgst_en = fnode_param->value[0];
8123 break;
8124 case ISCSI_FLASHNODE_IMM_DATA_EN:
8125 fnode_sess->imm_data_en = fnode_param->value[0];
8126 break;
8127 case ISCSI_FLASHNODE_INITIAL_R2T_EN:
8128 fnode_sess->initial_r2t_en = fnode_param->value[0];
8129 break;
8130 case ISCSI_FLASHNODE_DATASEQ_INORDER:
8131 fnode_sess->dataseq_inorder_en = fnode_param->value[0];
8132 break;
8133 case ISCSI_FLASHNODE_PDU_INORDER:
8134 fnode_sess->pdu_inorder_en = fnode_param->value[0];
8135 break;
8136 case ISCSI_FLASHNODE_CHAP_AUTH_EN:
8137 fnode_sess->chap_auth_en = fnode_param->value[0];
8138 /* Invalidate chap index if chap auth is disabled */
8139 if (!fnode_sess->chap_auth_en)
8140 fnode_sess->chap_out_idx = INVALID_ENTRY;
8141
8142 break;
8143 case ISCSI_FLASHNODE_SNACK_REQ_EN:
8144 fnode_conn->snack_req_en = fnode_param->value[0];
8145 break;
8146 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN:
8147 fnode_sess->discovery_logout_en = fnode_param->value[0];
8148 break;
8149 case ISCSI_FLASHNODE_BIDI_CHAP_EN:
8150 fnode_sess->bidi_chap_en = fnode_param->value[0];
8151 break;
8152 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL:
8153 fnode_sess->discovery_auth_optional =
8154 fnode_param->value[0];
8155 break;
8156 case ISCSI_FLASHNODE_ERL:
8157 fnode_sess->erl = fnode_param->value[0];
8158 break;
8159 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT:
8160 fnode_conn->tcp_timestamp_stat = fnode_param->value[0];
8161 break;
8162 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE:
8163 fnode_conn->tcp_nagle_disable = fnode_param->value[0];
8164 break;
8165 case ISCSI_FLASHNODE_TCP_WSF_DISABLE:
8166 fnode_conn->tcp_wsf_disable = fnode_param->value[0];
8167 break;
8168 case ISCSI_FLASHNODE_TCP_TIMER_SCALE:
8169 fnode_conn->tcp_timer_scale = fnode_param->value[0];
8170 break;
8171 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN:
8172 fnode_conn->tcp_timestamp_en = fnode_param->value[0];
8173 break;
8174 case ISCSI_FLASHNODE_IP_FRAG_DISABLE:
8175 fnode_conn->fragment_disable = fnode_param->value[0];
8176 break;
8177 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH:
8178 fnode_conn->max_recv_dlength =
8179 *(unsigned *)fnode_param->value;
8180 break;
8181 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH:
8182 fnode_conn->max_xmit_dlength =
8183 *(unsigned *)fnode_param->value;
8184 break;
8185 case ISCSI_FLASHNODE_FIRST_BURST:
8186 fnode_sess->first_burst =
8187 *(unsigned *)fnode_param->value;
8188 break;
8189 case ISCSI_FLASHNODE_DEF_TIME2WAIT:
8190 fnode_sess->time2wait = *(uint16_t *)fnode_param->value;
8191 break;
8192 case ISCSI_FLASHNODE_DEF_TIME2RETAIN:
8193 fnode_sess->time2retain =
8194 *(uint16_t *)fnode_param->value;
8195 break;
8196 case ISCSI_FLASHNODE_MAX_R2T:
8197 fnode_sess->max_r2t =
8198 *(uint16_t *)fnode_param->value;
8199 break;
8200 case ISCSI_FLASHNODE_KEEPALIVE_TMO:
8201 fnode_conn->keepalive_timeout =
8202 *(uint16_t *)fnode_param->value;
8203 break;
8204 case ISCSI_FLASHNODE_ISID:
8205 memcpy(fnode_sess->isid, fnode_param->value,
8206 sizeof(fnode_sess->isid));
8207 break;
8208 case ISCSI_FLASHNODE_TSID:
8209 fnode_sess->tsid = *(uint16_t *)fnode_param->value;
8210 break;
8211 case ISCSI_FLASHNODE_PORT:
8212 fnode_conn->port = *(uint16_t *)fnode_param->value;
8213 break;
8214 case ISCSI_FLASHNODE_MAX_BURST:
8215 fnode_sess->max_burst = *(unsigned *)fnode_param->value;
8216 break;
8217 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO:
8218 fnode_sess->default_taskmgmt_timeout =
8219 *(uint16_t *)fnode_param->value;
8220 break;
8221 case ISCSI_FLASHNODE_IPADDR:
8222 memcpy(fnode_conn->ipaddress, fnode_param->value,
8223 IPv6_ADDR_LEN);
8224 break;
8225 case ISCSI_FLASHNODE_ALIAS:
8226 rc = iscsi_switch_str_param(&fnode_sess->targetalias,
8227 (char *)fnode_param->value);
8228 break;
8229 case ISCSI_FLASHNODE_REDIRECT_IPADDR:
8230 memcpy(fnode_conn->redirect_ipaddr, fnode_param->value,
8231 IPv6_ADDR_LEN);
8232 break;
8233 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE:
8234 fnode_conn->max_segment_size =
8235 *(unsigned *)fnode_param->value;
8236 break;
8237 case ISCSI_FLASHNODE_LOCAL_PORT:
8238 fnode_conn->local_port =
8239 *(uint16_t *)fnode_param->value;
8240 break;
8241 case ISCSI_FLASHNODE_IPV4_TOS:
8242 fnode_conn->ipv4_tos = fnode_param->value[0];
8243 break;
8244 case ISCSI_FLASHNODE_IPV6_TC:
8245 fnode_conn->ipv6_traffic_class = fnode_param->value[0];
8246 break;
8247 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL:
8248 fnode_conn->ipv6_flow_label = fnode_param->value[0];
8249 break;
8250 case ISCSI_FLASHNODE_NAME:
8251 rc = iscsi_switch_str_param(&fnode_sess->targetname,
8252 (char *)fnode_param->value);
8253 break;
8254 case ISCSI_FLASHNODE_TPGT:
8255 fnode_sess->tpgt = *(uint16_t *)fnode_param->value;
8256 break;
8257 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6:
8258 memcpy(fnode_conn->link_local_ipv6_addr,
8259 fnode_param->value, IPv6_ADDR_LEN);
8260 break;
8261 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX:
8262 fnode_sess->discovery_parent_idx =
8263 *(uint16_t *)fnode_param->value;
8264 break;
8265 case ISCSI_FLASHNODE_TCP_XMIT_WSF:
8266 fnode_conn->tcp_xmit_wsf =
8267 *(uint8_t *)fnode_param->value;
8268 break;
8269 case ISCSI_FLASHNODE_TCP_RECV_WSF:
8270 fnode_conn->tcp_recv_wsf =
8271 *(uint8_t *)fnode_param->value;
8272 break;
8273 case ISCSI_FLASHNODE_STATSN:
8274 fnode_conn->statsn = *(uint32_t *)fnode_param->value;
8275 break;
8276 case ISCSI_FLASHNODE_EXP_STATSN:
8277 fnode_conn->exp_statsn =
8278 *(uint32_t *)fnode_param->value;
8279 break;
8280 case ISCSI_FLASHNODE_CHAP_OUT_IDX:
8281 chap_out_idx = *(uint16_t *)fnode_param->value;
8282 if (!qla4xxx_get_uni_chap_at_index(ha,
8283 chap_tbl.name,
8284 chap_tbl.secret,
8285 chap_out_idx)) {
8286 fnode_sess->chap_out_idx = chap_out_idx;
8287 /* Enable chap auth if chap index is valid */
8288 fnode_sess->chap_auth_en = QL4_PARAM_ENABLE;
8289 }
8290 break;
8291 default:
8292 ql4_printk(KERN_ERR, ha,
8293 "%s: No such sysfs attribute\n", __func__);
8294 rc = -ENOSYS;
8295 goto exit_set_param;
8296 }
8297 }
8298
8299 rc = qla4xxx_sysfs_ddb_apply(fnode_sess, fnode_conn);
8300
8301 exit_set_param:
8302 return rc;
8303 }
8304
8305 /**
8306 * qla4xxx_sysfs_ddb_delete - Delete firmware DDB entry
8307 * @fnode_sess: pointer to session attrs of flash ddb entry
8308 *
8309 * This invalidates the flash ddb entry at the given index
8310 **/
8311 static int qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess)
8312 {
8313 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
8314 struct scsi_qla_host *ha = to_qla_host(shost);
8315 uint32_t dev_db_start_offset;
8316 uint32_t dev_db_end_offset;
8317 struct dev_db_entry *fw_ddb_entry = NULL;
8318 dma_addr_t fw_ddb_entry_dma;
8319 uint16_t *ddb_cookie = NULL;
8320 size_t ddb_size = 0;
8321 void *pddb = NULL;
8322 int target_id;
8323 int rc = 0;
8324
8325 if (fnode_sess->is_boot_target) {
8326 rc = -EPERM;
8327 DEBUG2(ql4_printk(KERN_ERR, ha,
8328 "%s: Deletion of boot target entry is not permitted.\n",
8329 __func__));
8330 goto exit_ddb_del;
8331 }
8332
8333 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT)
8334 goto sysfs_ddb_del;
8335
8336 if (is_qla40XX(ha)) {
8337 dev_db_start_offset = FLASH_OFFSET_DB_INFO;
8338 dev_db_end_offset = FLASH_OFFSET_DB_END;
8339 dev_db_start_offset += (fnode_sess->target_id *
8340 sizeof(*fw_ddb_entry));
8341 ddb_size = sizeof(*fw_ddb_entry);
8342 } else {
8343 dev_db_start_offset = FLASH_RAW_ACCESS_ADDR +
8344 (ha->hw.flt_region_ddb << 2);
8345 /* flt_ddb_size is DDB table size for both ports
8346 * so divide it by 2 to calculate the offset for second port
8347 */
8348 if (ha->port_num == 1)
8349 dev_db_start_offset += (ha->hw.flt_ddb_size / 2);
8350
8351 dev_db_end_offset = dev_db_start_offset +
8352 (ha->hw.flt_ddb_size / 2);
8353
8354 dev_db_start_offset += (fnode_sess->target_id *
8355 sizeof(*fw_ddb_entry));
8356 dev_db_start_offset += offsetof(struct dev_db_entry, cookie);
8357
8358 ddb_size = sizeof(*ddb_cookie);
8359 }
8360
8361 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: start offset=%u, end offset=%u\n",
8362 __func__, dev_db_start_offset, dev_db_end_offset));
8363
8364 if (dev_db_start_offset > dev_db_end_offset) {
8365 rc = -EIO;
8366 DEBUG2(ql4_printk(KERN_ERR, ha, "%s:Invalid DDB index %u\n",
8367 __func__, fnode_sess->target_id));
8368 goto exit_ddb_del;
8369 }
8370
8371 pddb = dma_alloc_coherent(&ha->pdev->dev, ddb_size,
8372 &fw_ddb_entry_dma, GFP_KERNEL);
8373 if (!pddb) {
8374 rc = -ENOMEM;
8375 DEBUG2(ql4_printk(KERN_ERR, ha,
8376 "%s: Unable to allocate dma buffer\n",
8377 __func__));
8378 goto exit_ddb_del;
8379 }
8380
8381 if (is_qla40XX(ha)) {
8382 fw_ddb_entry = pddb;
8383 memset(fw_ddb_entry, 0, ddb_size);
8384 ddb_cookie = &fw_ddb_entry->cookie;
8385 } else {
8386 ddb_cookie = pddb;
8387 }
8388
8389 /* invalidate the cookie */
8390 *ddb_cookie = 0xFFEE;
8391 qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset,
8392 ddb_size, FLASH_OPT_RMW_COMMIT);
8393
8394 sysfs_ddb_del:
8395 target_id = fnode_sess->target_id;
8396 iscsi_destroy_flashnode_sess(fnode_sess);
8397 ql4_printk(KERN_INFO, ha,
8398 "%s: session and conn entries for flashnode %u of host %lu deleted\n",
8399 __func__, target_id, ha->host_no);
8400 exit_ddb_del:
8401 if (pddb)
8402 dma_free_coherent(&ha->pdev->dev, ddb_size, pddb,
8403 fw_ddb_entry_dma);
8404 return rc;
8405 }
8406
8407 /**
8408 * qla4xxx_sysfs_ddb_export - Create sysfs entries for firmware DDBs
8409 * @ha: pointer to adapter structure
8410 *
8411 * Export the firmware DDB for all send targets and normal targets to sysfs.
8412 **/
8413 int qla4xxx_sysfs_ddb_export(struct scsi_qla_host *ha)
8414 {
8415 struct dev_db_entry *fw_ddb_entry = NULL;
8416 dma_addr_t fw_ddb_entry_dma;
8417 uint16_t max_ddbs;
8418 uint16_t idx = 0;
8419 int ret = QLA_SUCCESS;
8420
8421 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev,
8422 sizeof(*fw_ddb_entry),
8423 &fw_ddb_entry_dma, GFP_KERNEL);
8424 if (!fw_ddb_entry) {
8425 DEBUG2(ql4_printk(KERN_ERR, ha,
8426 "%s: Unable to allocate dma buffer\n",
8427 __func__));
8428 return -ENOMEM;
8429 }
8430
8431 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES :
8432 MAX_DEV_DB_ENTRIES;
8433
8434 for (idx = 0; idx < max_ddbs; idx++) {
8435 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry, fw_ddb_entry_dma,
8436 idx))
8437 continue;
8438
8439 ret = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 0);
8440 if (ret) {
8441 ret = -EIO;
8442 break;
8443 }
8444 }
8445
8446 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry,
8447 fw_ddb_entry_dma);
8448
8449 return ret;
8450 }
8451
8452 static void qla4xxx_sysfs_ddb_remove(struct scsi_qla_host *ha)
8453 {
8454 iscsi_destroy_all_flashnode(ha->host);
8455 }
8456
8457 /**
8458 * qla4xxx_build_ddb_list - Build ddb list and setup sessions
8459 * @ha: pointer to adapter structure
8460 * @is_reset: Is this init path or reset path
8461 *
8462 * Create a list of sendtargets (st) from firmware DDBs, issue send targets
8463 * using connection open, then create the list of normal targets (nt)
8464 * from firmware DDBs. Based on the list of nt setup session and connection
8465 * objects.
8466 **/
8467 void qla4xxx_build_ddb_list(struct scsi_qla_host *ha, int is_reset)
8468 {
8469 uint16_t tmo = 0;
8470 struct list_head list_st, list_nt;
8471 struct qla_ddb_index *st_ddb_idx, *st_ddb_idx_tmp;
8472 unsigned long wtime;
8473
8474 if (!test_bit(AF_LINK_UP, &ha->flags)) {
8475 set_bit(AF_BUILD_DDB_LIST, &ha->flags);
8476 ha->is_reset = is_reset;
8477 return;
8478 }
8479
8480 INIT_LIST_HEAD(&list_st);
8481 INIT_LIST_HEAD(&list_nt);
8482
8483 qla4xxx_build_st_list(ha, &list_st);
8484
8485 /* Before issuing conn open mbox, ensure all IPs states are configured
8486 * Note, conn open fails if IPs are not configured
8487 */
8488 qla4xxx_wait_for_ip_configuration(ha);
8489
8490 /* Go thru the STs and fire the sendtargets by issuing conn open mbx */
8491 list_for_each_entry_safe(st_ddb_idx, st_ddb_idx_tmp, &list_st, list) {
8492 qla4xxx_conn_open(ha, st_ddb_idx->fw_ddb_idx);
8493 }
8494
8495 /* Wait to ensure all sendtargets are done for min 12 sec wait */
8496 tmo = ((ha->def_timeout > LOGIN_TOV) &&
8497 (ha->def_timeout < LOGIN_TOV * 10) ?
8498 ha->def_timeout : LOGIN_TOV);
8499
8500 DEBUG2(ql4_printk(KERN_INFO, ha,
8501 "Default time to wait for build ddb %d\n", tmo));
8502
8503 wtime = jiffies + (HZ * tmo);
8504 do {
8505 if (list_empty(&list_st))
8506 break;
8507
8508 qla4xxx_remove_failed_ddb(ha, &list_st);
8509 schedule_timeout_uninterruptible(HZ / 10);
8510 } while (time_after(wtime, jiffies));
8511
8512
8513 qla4xxx_build_nt_list(ha, &list_nt, &list_st, is_reset);
8514
8515 qla4xxx_free_ddb_list(&list_st);
8516 qla4xxx_free_ddb_list(&list_nt);
8517
8518 qla4xxx_free_ddb_index(ha);
8519 }
8520
8521 /**
8522 * qla4xxx_wait_login_resp_boot_tgt - Wait for iSCSI boot target login
8523 * response.
8524 * @ha: pointer to adapter structure
8525 *
8526 * When the boot entry is normal iSCSI target then DF_BOOT_TGT flag will be
8527 * set in DDB and we will wait for login response of boot targets during
8528 * probe.
8529 **/
8530 static void qla4xxx_wait_login_resp_boot_tgt(struct scsi_qla_host *ha)
8531 {
8532 struct ddb_entry *ddb_entry;
8533 struct dev_db_entry *fw_ddb_entry = NULL;
8534 dma_addr_t fw_ddb_entry_dma;
8535 unsigned long wtime;
8536 uint32_t ddb_state;
8537 int max_ddbs, idx, ret;
8538
8539 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
8540 MAX_DEV_DB_ENTRIES;
8541
8542 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8543 &fw_ddb_entry_dma, GFP_KERNEL);
8544 if (!fw_ddb_entry) {
8545 ql4_printk(KERN_ERR, ha,
8546 "%s: Unable to allocate dma buffer\n", __func__);
8547 goto exit_login_resp;
8548 }
8549
8550 wtime = jiffies + (HZ * BOOT_LOGIN_RESP_TOV);
8551
8552 for (idx = 0; idx < max_ddbs; idx++) {
8553 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
8554 if (ddb_entry == NULL)
8555 continue;
8556
8557 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) {
8558 DEBUG2(ql4_printk(KERN_INFO, ha,
8559 "%s: DDB index [%d]\n", __func__,
8560 ddb_entry->fw_ddb_index));
8561 do {
8562 ret = qla4xxx_get_fwddb_entry(ha,
8563 ddb_entry->fw_ddb_index,
8564 fw_ddb_entry, fw_ddb_entry_dma,
8565 NULL, NULL, &ddb_state, NULL,
8566 NULL, NULL);
8567 if (ret == QLA_ERROR)
8568 goto exit_login_resp;
8569
8570 if ((ddb_state == DDB_DS_SESSION_ACTIVE) ||
8571 (ddb_state == DDB_DS_SESSION_FAILED))
8572 break;
8573
8574 schedule_timeout_uninterruptible(HZ);
8575
8576 } while ((time_after(wtime, jiffies)));
8577
8578 if (!time_after(wtime, jiffies)) {
8579 DEBUG2(ql4_printk(KERN_INFO, ha,
8580 "%s: Login response wait timer expired\n",
8581 __func__));
8582 goto exit_login_resp;
8583 }
8584 }
8585 }
8586
8587 exit_login_resp:
8588 if (fw_ddb_entry)
8589 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8590 fw_ddb_entry, fw_ddb_entry_dma);
8591 }
8592
8593 /**
8594 * qla4xxx_probe_adapter - callback function to probe HBA
8595 * @pdev: pointer to pci_dev structure
8596 * @pci_device_id: pointer to pci_device entry
8597 *
8598 * This routine will probe for Qlogic 4xxx iSCSI host adapters.
8599 * It returns zero if successful. It also initializes all data necessary for
8600 * the driver.
8601 **/
8602 static int qla4xxx_probe_adapter(struct pci_dev *pdev,
8603 const struct pci_device_id *ent)
8604 {
8605 int ret = -ENODEV, status;
8606 struct Scsi_Host *host;
8607 struct scsi_qla_host *ha;
8608 uint8_t init_retry_count = 0;
8609 char buf[34];
8610 struct qla4_8xxx_legacy_intr_set *nx_legacy_intr;
8611 uint32_t dev_state;
8612
8613 if (pci_enable_device(pdev))
8614 return -1;
8615
8616 host = iscsi_host_alloc(&qla4xxx_driver_template, sizeof(*ha), 0);
8617 if (host == NULL) {
8618 printk(KERN_WARNING
8619 "qla4xxx: Couldn't allocate host from scsi layer!\n");
8620 goto probe_disable_device;
8621 }
8622
8623 /* Clear our data area */
8624 ha = to_qla_host(host);
8625 memset(ha, 0, sizeof(*ha));
8626
8627 /* Save the information from PCI BIOS. */
8628 ha->pdev = pdev;
8629 ha->host = host;
8630 ha->host_no = host->host_no;
8631 ha->func_num = PCI_FUNC(ha->pdev->devfn);
8632
8633 pci_enable_pcie_error_reporting(pdev);
8634
8635 /* Setup Runtime configurable options */
8636 if (is_qla8022(ha)) {
8637 ha->isp_ops = &qla4_82xx_isp_ops;
8638 ha->reg_tbl = (uint32_t *) qla4_82xx_reg_tbl;
8639 ha->qdr_sn_window = -1;
8640 ha->ddr_mn_window = -1;
8641 ha->curr_window = 255;
8642 nx_legacy_intr = &legacy_intr[ha->func_num];
8643 ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit;
8644 ha->nx_legacy_intr.tgt_status_reg =
8645 nx_legacy_intr->tgt_status_reg;
8646 ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg;
8647 ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg;
8648 } else if (is_qla8032(ha) || is_qla8042(ha)) {
8649 ha->isp_ops = &qla4_83xx_isp_ops;
8650 ha->reg_tbl = (uint32_t *)qla4_83xx_reg_tbl;
8651 } else {
8652 ha->isp_ops = &qla4xxx_isp_ops;
8653 }
8654
8655 if (is_qla80XX(ha)) {
8656 rwlock_init(&ha->hw_lock);
8657 ha->pf_bit = ha->func_num << 16;
8658 /* Set EEH reset type to fundamental if required by hba */
8659 pdev->needs_freset = 1;
8660 }
8661
8662 /* Configure PCI I/O space. */
8663 ret = ha->isp_ops->iospace_config(ha);
8664 if (ret)
8665 goto probe_failed_ioconfig;
8666
8667 ql4_printk(KERN_INFO, ha, "Found an ISP%04x, irq %d, iobase 0x%p\n",
8668 pdev->device, pdev->irq, ha->reg);
8669
8670 qla4xxx_config_dma_addressing(ha);
8671
8672 /* Initialize lists and spinlocks. */
8673 INIT_LIST_HEAD(&ha->free_srb_q);
8674
8675 mutex_init(&ha->mbox_sem);
8676 mutex_init(&ha->chap_sem);
8677 init_completion(&ha->mbx_intr_comp);
8678 init_completion(&ha->disable_acb_comp);
8679 init_completion(&ha->idc_comp);
8680 init_completion(&ha->link_up_comp);
8681
8682 spin_lock_init(&ha->hardware_lock);
8683 spin_lock_init(&ha->work_lock);
8684
8685 /* Initialize work list */
8686 INIT_LIST_HEAD(&ha->work_list);
8687
8688 /* Allocate dma buffers */
8689 if (qla4xxx_mem_alloc(ha)) {
8690 ql4_printk(KERN_WARNING, ha,
8691 "[ERROR] Failed to allocate memory for adapter\n");
8692
8693 ret = -ENOMEM;
8694 goto probe_failed;
8695 }
8696
8697 host->cmd_per_lun = 3;
8698 host->max_channel = 0;
8699 host->max_lun = MAX_LUNS - 1;
8700 host->max_id = MAX_TARGETS;
8701 host->max_cmd_len = IOCB_MAX_CDB_LEN;
8702 host->can_queue = MAX_SRBS ;
8703 host->transportt = qla4xxx_scsi_transport;
8704
8705 pci_set_drvdata(pdev, ha);
8706
8707 ret = scsi_add_host(host, &pdev->dev);
8708 if (ret)
8709 goto probe_failed;
8710
8711 if (is_qla80XX(ha))
8712 qla4_8xxx_get_flash_info(ha);
8713
8714 if (is_qla8032(ha) || is_qla8042(ha)) {
8715 qla4_83xx_read_reset_template(ha);
8716 /*
8717 * NOTE: If ql4dontresethba==1, set IDC_CTRL DONTRESET_BIT0.
8718 * If DONRESET_BIT0 is set, drivers should not set dev_state
8719 * to NEED_RESET. But if NEED_RESET is set, drivers should
8720 * should honor the reset.
8721 */
8722 if (ql4xdontresethba == 1)
8723 qla4_83xx_set_idc_dontreset(ha);
8724 }
8725
8726 /*
8727 * Initialize the Host adapter request/response queues and
8728 * firmware
8729 * NOTE: interrupts enabled upon successful completion
8730 */
8731 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER);
8732
8733 /* Dont retry adapter initialization if IRQ allocation failed */
8734 if (is_qla80XX(ha) && (status == QLA_ERROR))
8735 goto skip_retry_init;
8736
8737 while ((!test_bit(AF_ONLINE, &ha->flags)) &&
8738 init_retry_count++ < MAX_INIT_RETRIES) {
8739
8740 if (is_qla80XX(ha)) {
8741 ha->isp_ops->idc_lock(ha);
8742 dev_state = qla4_8xxx_rd_direct(ha,
8743 QLA8XXX_CRB_DEV_STATE);
8744 ha->isp_ops->idc_unlock(ha);
8745 if (dev_state == QLA8XXX_DEV_FAILED) {
8746 ql4_printk(KERN_WARNING, ha, "%s: don't retry "
8747 "initialize adapter. H/W is in failed state\n",
8748 __func__);
8749 break;
8750 }
8751 }
8752 DEBUG2(printk("scsi: %s: retrying adapter initialization "
8753 "(%d)\n", __func__, init_retry_count));
8754
8755 if (ha->isp_ops->reset_chip(ha) == QLA_ERROR)
8756 continue;
8757
8758 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER);
8759 if (is_qla80XX(ha) && (status == QLA_ERROR)) {
8760 if (qla4_8xxx_check_init_adapter_retry(ha) == QLA_ERROR)
8761 goto skip_retry_init;
8762 }
8763 }
8764
8765 skip_retry_init:
8766 if (!test_bit(AF_ONLINE, &ha->flags)) {
8767 ql4_printk(KERN_WARNING, ha, "Failed to initialize adapter\n");
8768
8769 if ((is_qla8022(ha) && ql4xdontresethba) ||
8770 ((is_qla8032(ha) || is_qla8042(ha)) &&
8771 qla4_83xx_idc_dontreset(ha))) {
8772 /* Put the device in failed state. */
8773 DEBUG2(printk(KERN_ERR "HW STATE: FAILED\n"));
8774 ha->isp_ops->idc_lock(ha);
8775 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
8776 QLA8XXX_DEV_FAILED);
8777 ha->isp_ops->idc_unlock(ha);
8778 }
8779 ret = -ENODEV;
8780 goto remove_host;
8781 }
8782
8783 /* Startup the kernel thread for this host adapter. */
8784 DEBUG2(printk("scsi: %s: Starting kernel thread for "
8785 "qla4xxx_dpc\n", __func__));
8786 sprintf(buf, "qla4xxx_%lu_dpc", ha->host_no);
8787 ha->dpc_thread = create_singlethread_workqueue(buf);
8788 if (!ha->dpc_thread) {
8789 ql4_printk(KERN_WARNING, ha, "Unable to start DPC thread!\n");
8790 ret = -ENODEV;
8791 goto remove_host;
8792 }
8793 INIT_WORK(&ha->dpc_work, qla4xxx_do_dpc);
8794
8795 ha->task_wq = alloc_workqueue("qla4xxx_%lu_task", WQ_MEM_RECLAIM, 1,
8796 ha->host_no);
8797 if (!ha->task_wq) {
8798 ql4_printk(KERN_WARNING, ha, "Unable to start task thread!\n");
8799 ret = -ENODEV;
8800 goto remove_host;
8801 }
8802
8803 /*
8804 * For ISP-8XXX, request_irqs is called in qla4_8xxx_load_risc
8805 * (which is called indirectly by qla4xxx_initialize_adapter),
8806 * so that irqs will be registered after crbinit but before
8807 * mbx_intr_enable.
8808 */
8809 if (is_qla40XX(ha)) {
8810 ret = qla4xxx_request_irqs(ha);
8811 if (ret) {
8812 ql4_printk(KERN_WARNING, ha, "Failed to reserve "
8813 "interrupt %d already in use.\n", pdev->irq);
8814 goto remove_host;
8815 }
8816 }
8817
8818 pci_save_state(ha->pdev);
8819 ha->isp_ops->enable_intrs(ha);
8820
8821 /* Start timer thread. */
8822 qla4xxx_start_timer(ha, 1);
8823
8824 set_bit(AF_INIT_DONE, &ha->flags);
8825
8826 qla4_8xxx_alloc_sysfs_attr(ha);
8827
8828 printk(KERN_INFO
8829 " QLogic iSCSI HBA Driver version: %s\n"
8830 " QLogic ISP%04x @ %s, host#=%ld, fw=%02d.%02d.%02d.%02d\n",
8831 qla4xxx_version_str, ha->pdev->device, pci_name(ha->pdev),
8832 ha->host_no, ha->fw_info.fw_major, ha->fw_info.fw_minor,
8833 ha->fw_info.fw_patch, ha->fw_info.fw_build);
8834
8835 /* Set the driver version */
8836 if (is_qla80XX(ha))
8837 qla4_8xxx_set_param(ha, SET_DRVR_VERSION);
8838
8839 if (qla4xxx_setup_boot_info(ha))
8840 ql4_printk(KERN_ERR, ha,
8841 "%s: No iSCSI boot target configured\n", __func__);
8842
8843 set_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags);
8844 /* Perform the build ddb list and login to each */
8845 qla4xxx_build_ddb_list(ha, INIT_ADAPTER);
8846 iscsi_host_for_each_session(ha->host, qla4xxx_login_flash_ddb);
8847 qla4xxx_wait_login_resp_boot_tgt(ha);
8848
8849 qla4xxx_create_chap_list(ha);
8850
8851 qla4xxx_create_ifaces(ha);
8852 return 0;
8853
8854 remove_host:
8855 scsi_remove_host(ha->host);
8856
8857 probe_failed:
8858 qla4xxx_free_adapter(ha);
8859
8860 probe_failed_ioconfig:
8861 pci_disable_pcie_error_reporting(pdev);
8862 scsi_host_put(ha->host);
8863
8864 probe_disable_device:
8865 pci_disable_device(pdev);
8866
8867 return ret;
8868 }
8869
8870 /**
8871 * qla4xxx_prevent_other_port_reinit - prevent other port from re-initialize
8872 * @ha: pointer to adapter structure
8873 *
8874 * Mark the other ISP-4xxx port to indicate that the driver is being removed,
8875 * so that the other port will not re-initialize while in the process of
8876 * removing the ha due to driver unload or hba hotplug.
8877 **/
8878 static void qla4xxx_prevent_other_port_reinit(struct scsi_qla_host *ha)
8879 {
8880 struct scsi_qla_host *other_ha = NULL;
8881 struct pci_dev *other_pdev = NULL;
8882 int fn = ISP4XXX_PCI_FN_2;
8883
8884 /*iscsi function numbers for ISP4xxx is 1 and 3*/
8885 if (PCI_FUNC(ha->pdev->devfn) & BIT_1)
8886 fn = ISP4XXX_PCI_FN_1;
8887
8888 other_pdev =
8889 pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus),
8890 ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
8891 fn));
8892
8893 /* Get other_ha if other_pdev is valid and state is enable*/
8894 if (other_pdev) {
8895 if (atomic_read(&other_pdev->enable_cnt)) {
8896 other_ha = pci_get_drvdata(other_pdev);
8897 if (other_ha) {
8898 set_bit(AF_HA_REMOVAL, &other_ha->flags);
8899 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: "
8900 "Prevent %s reinit\n", __func__,
8901 dev_name(&other_ha->pdev->dev)));
8902 }
8903 }
8904 pci_dev_put(other_pdev);
8905 }
8906 }
8907
8908 static void qla4xxx_destroy_ddb(struct scsi_qla_host *ha,
8909 struct ddb_entry *ddb_entry)
8910 {
8911 struct dev_db_entry *fw_ddb_entry = NULL;
8912 dma_addr_t fw_ddb_entry_dma;
8913 unsigned long wtime;
8914 uint32_t ddb_state;
8915 int options;
8916 int status;
8917
8918 options = LOGOUT_OPTION_CLOSE_SESSION;
8919 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR) {
8920 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__);
8921 goto clear_ddb;
8922 }
8923
8924 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8925 &fw_ddb_entry_dma, GFP_KERNEL);
8926 if (!fw_ddb_entry) {
8927 ql4_printk(KERN_ERR, ha,
8928 "%s: Unable to allocate dma buffer\n", __func__);
8929 goto clear_ddb;
8930 }
8931
8932 wtime = jiffies + (HZ * LOGOUT_TOV);
8933 do {
8934 status = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
8935 fw_ddb_entry, fw_ddb_entry_dma,
8936 NULL, NULL, &ddb_state, NULL,
8937 NULL, NULL);
8938 if (status == QLA_ERROR)
8939 goto free_ddb;
8940
8941 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) ||
8942 (ddb_state == DDB_DS_SESSION_FAILED))
8943 goto free_ddb;
8944
8945 schedule_timeout_uninterruptible(HZ);
8946 } while ((time_after(wtime, jiffies)));
8947
8948 free_ddb:
8949 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8950 fw_ddb_entry, fw_ddb_entry_dma);
8951 clear_ddb:
8952 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
8953 }
8954
8955 static void qla4xxx_destroy_fw_ddb_session(struct scsi_qla_host *ha)
8956 {
8957 struct ddb_entry *ddb_entry;
8958 int idx;
8959
8960 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
8961
8962 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
8963 if ((ddb_entry != NULL) &&
8964 (ddb_entry->ddb_type == FLASH_DDB)) {
8965
8966 qla4xxx_destroy_ddb(ha, ddb_entry);
8967 /*
8968 * we have decremented the reference count of the driver
8969 * when we setup the session to have the driver unload
8970 * to be seamless without actually destroying the
8971 * session
8972 **/
8973 try_module_get(qla4xxx_iscsi_transport.owner);
8974 iscsi_destroy_endpoint(ddb_entry->conn->ep);
8975 qla4xxx_free_ddb(ha, ddb_entry);
8976 iscsi_session_teardown(ddb_entry->sess);
8977 }
8978 }
8979 }
8980 /**
8981 * qla4xxx_remove_adapter - callback function to remove adapter.
8982 * @pci_dev: PCI device pointer
8983 **/
8984 static void qla4xxx_remove_adapter(struct pci_dev *pdev)
8985 {
8986 struct scsi_qla_host *ha;
8987
8988 /*
8989 * If the PCI device is disabled then it means probe_adapter had
8990 * failed and resources already cleaned up on probe_adapter exit.
8991 */
8992 if (!pci_is_enabled(pdev))
8993 return;
8994
8995 ha = pci_get_drvdata(pdev);
8996
8997 if (is_qla40XX(ha))
8998 qla4xxx_prevent_other_port_reinit(ha);
8999
9000 /* destroy iface from sysfs */
9001 qla4xxx_destroy_ifaces(ha);
9002
9003 if ((!ql4xdisablesysfsboot) && ha->boot_kset)
9004 iscsi_boot_destroy_kset(ha->boot_kset);
9005
9006 qla4xxx_destroy_fw_ddb_session(ha);
9007 qla4_8xxx_free_sysfs_attr(ha);
9008
9009 qla4xxx_sysfs_ddb_remove(ha);
9010 scsi_remove_host(ha->host);
9011
9012 qla4xxx_free_adapter(ha);
9013
9014 scsi_host_put(ha->host);
9015
9016 pci_disable_pcie_error_reporting(pdev);
9017 pci_disable_device(pdev);
9018 }
9019
9020 /**
9021 * qla4xxx_config_dma_addressing() - Configure OS DMA addressing method.
9022 * @ha: HA context
9023 *
9024 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
9025 * supported addressing method.
9026 */
9027 static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha)
9028 {
9029 int retval;
9030
9031 /* Update our PCI device dma_mask for full 64 bit mask */
9032 if (pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(64)) == 0) {
9033 if (pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) {
9034 dev_dbg(&ha->pdev->dev,
9035 "Failed to set 64 bit PCI consistent mask; "
9036 "using 32 bit.\n");
9037 retval = pci_set_consistent_dma_mask(ha->pdev,
9038 DMA_BIT_MASK(32));
9039 }
9040 } else
9041 retval = pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(32));
9042 }
9043
9044 static int qla4xxx_slave_alloc(struct scsi_device *sdev)
9045 {
9046 struct iscsi_cls_session *cls_sess;
9047 struct iscsi_session *sess;
9048 struct ddb_entry *ddb;
9049 int queue_depth = QL4_DEF_QDEPTH;
9050
9051 cls_sess = starget_to_session(sdev->sdev_target);
9052 sess = cls_sess->dd_data;
9053 ddb = sess->dd_data;
9054
9055 sdev->hostdata = ddb;
9056
9057 if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU)
9058 queue_depth = ql4xmaxqdepth;
9059
9060 scsi_change_queue_depth(sdev, queue_depth);
9061 return 0;
9062 }
9063
9064 /**
9065 * qla4xxx_del_from_active_array - returns an active srb
9066 * @ha: Pointer to host adapter structure.
9067 * @index: index into the active_array
9068 *
9069 * This routine removes and returns the srb at the specified index
9070 **/
9071 struct srb *qla4xxx_del_from_active_array(struct scsi_qla_host *ha,
9072 uint32_t index)
9073 {
9074 struct srb *srb = NULL;
9075 struct scsi_cmnd *cmd = NULL;
9076
9077 cmd = scsi_host_find_tag(ha->host, index);
9078 if (!cmd)
9079 return srb;
9080
9081 srb = (struct srb *)CMD_SP(cmd);
9082 if (!srb)
9083 return srb;
9084
9085 /* update counters */
9086 if (srb->flags & SRB_DMA_VALID) {
9087 ha->iocb_cnt -= srb->iocb_cnt;
9088 if (srb->cmd)
9089 srb->cmd->host_scribble =
9090 (unsigned char *)(unsigned long) MAX_SRBS;
9091 }
9092 return srb;
9093 }
9094
9095 /**
9096 * qla4xxx_eh_wait_on_command - waits for command to be returned by firmware
9097 * @ha: Pointer to host adapter structure.
9098 * @cmd: Scsi Command to wait on.
9099 *
9100 * This routine waits for the command to be returned by the Firmware
9101 * for some max time.
9102 **/
9103 static int qla4xxx_eh_wait_on_command(struct scsi_qla_host *ha,
9104 struct scsi_cmnd *cmd)
9105 {
9106 int done = 0;
9107 struct srb *rp;
9108 uint32_t max_wait_time = EH_WAIT_CMD_TOV;
9109 int ret = SUCCESS;
9110
9111 /* Dont wait on command if PCI error is being handled
9112 * by PCI AER driver
9113 */
9114 if (unlikely(pci_channel_offline(ha->pdev)) ||
9115 (test_bit(AF_EEH_BUSY, &ha->flags))) {
9116 ql4_printk(KERN_WARNING, ha, "scsi%ld: Return from %s\n",
9117 ha->host_no, __func__);
9118 return ret;
9119 }
9120
9121 do {
9122 /* Checking to see if its returned to OS */
9123 rp = (struct srb *) CMD_SP(cmd);
9124 if (rp == NULL) {
9125 done++;
9126 break;
9127 }
9128
9129 msleep(2000);
9130 } while (max_wait_time--);
9131
9132 return done;
9133 }
9134
9135 /**
9136 * qla4xxx_wait_for_hba_online - waits for HBA to come online
9137 * @ha: Pointer to host adapter structure
9138 **/
9139 static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha)
9140 {
9141 unsigned long wait_online;
9142
9143 wait_online = jiffies + (HBA_ONLINE_TOV * HZ);
9144 while (time_before(jiffies, wait_online)) {
9145
9146 if (adapter_up(ha))
9147 return QLA_SUCCESS;
9148
9149 msleep(2000);
9150 }
9151
9152 return QLA_ERROR;
9153 }
9154
9155 /**
9156 * qla4xxx_eh_wait_for_commands - wait for active cmds to finish.
9157 * @ha: pointer to HBA
9158 * @t: target id
9159 * @l: lun id
9160 *
9161 * This function waits for all outstanding commands to a lun to complete. It
9162 * returns 0 if all pending commands are returned and 1 otherwise.
9163 **/
9164 static int qla4xxx_eh_wait_for_commands(struct scsi_qla_host *ha,
9165 struct scsi_target *stgt,
9166 struct scsi_device *sdev)
9167 {
9168 int cnt;
9169 int status = 0;
9170 struct scsi_cmnd *cmd;
9171
9172 /*
9173 * Waiting for all commands for the designated target or dev
9174 * in the active array
9175 */
9176 for (cnt = 0; cnt < ha->host->can_queue; cnt++) {
9177 cmd = scsi_host_find_tag(ha->host, cnt);
9178 if (cmd && stgt == scsi_target(cmd->device) &&
9179 (!sdev || sdev == cmd->device)) {
9180 if (!qla4xxx_eh_wait_on_command(ha, cmd)) {
9181 status++;
9182 break;
9183 }
9184 }
9185 }
9186 return status;
9187 }
9188
9189 /**
9190 * qla4xxx_eh_abort - callback for abort task.
9191 * @cmd: Pointer to Linux's SCSI command structure
9192 *
9193 * This routine is called by the Linux OS to abort the specified
9194 * command.
9195 **/
9196 static int qla4xxx_eh_abort(struct scsi_cmnd *cmd)
9197 {
9198 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
9199 unsigned int id = cmd->device->id;
9200 uint64_t lun = cmd->device->lun;
9201 unsigned long flags;
9202 struct srb *srb = NULL;
9203 int ret = SUCCESS;
9204 int wait = 0;
9205 int rval;
9206
9207 ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%llu: Abort command issued cmd=%p, cdb=0x%x\n",
9208 ha->host_no, id, lun, cmd, cmd->cmnd[0]);
9209
9210 rval = qla4xxx_isp_check_reg(ha);
9211 if (rval != QLA_SUCCESS) {
9212 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n");
9213 return FAILED;
9214 }
9215
9216 spin_lock_irqsave(&ha->hardware_lock, flags);
9217 srb = (struct srb *) CMD_SP(cmd);
9218 if (!srb) {
9219 spin_unlock_irqrestore(&ha->hardware_lock, flags);
9220 ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%llu: Specified command has already completed.\n",
9221 ha->host_no, id, lun);
9222 return SUCCESS;
9223 }
9224 kref_get(&srb->srb_ref);
9225 spin_unlock_irqrestore(&ha->hardware_lock, flags);
9226
9227 if (qla4xxx_abort_task(ha, srb) != QLA_SUCCESS) {
9228 DEBUG3(printk("scsi%ld:%d:%llu: Abort_task mbx failed.\n",
9229 ha->host_no, id, lun));
9230 ret = FAILED;
9231 } else {
9232 DEBUG3(printk("scsi%ld:%d:%llu: Abort_task mbx success.\n",
9233 ha->host_no, id, lun));
9234 wait = 1;
9235 }
9236
9237 kref_put(&srb->srb_ref, qla4xxx_srb_compl);
9238
9239 /* Wait for command to complete */
9240 if (wait) {
9241 if (!qla4xxx_eh_wait_on_command(ha, cmd)) {
9242 DEBUG2(printk("scsi%ld:%d:%llu: Abort handler timed out\n",
9243 ha->host_no, id, lun));
9244 ret = FAILED;
9245 }
9246 }
9247
9248 ql4_printk(KERN_INFO, ha,
9249 "scsi%ld:%d:%llu: Abort command - %s\n",
9250 ha->host_no, id, lun, (ret == SUCCESS) ? "succeeded" : "failed");
9251
9252 return ret;
9253 }
9254
9255 /**
9256 * qla4xxx_eh_device_reset - callback for target reset.
9257 * @cmd: Pointer to Linux's SCSI command structure
9258 *
9259 * This routine is called by the Linux OS to reset all luns on the
9260 * specified target.
9261 **/
9262 static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd)
9263 {
9264 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
9265 struct ddb_entry *ddb_entry = cmd->device->hostdata;
9266 int ret = FAILED, stat;
9267 int rval;
9268
9269 if (!ddb_entry)
9270 return ret;
9271
9272 ret = iscsi_block_scsi_eh(cmd);
9273 if (ret)
9274 return ret;
9275 ret = FAILED;
9276
9277 ql4_printk(KERN_INFO, ha,
9278 "scsi%ld:%d:%d:%llu: DEVICE RESET ISSUED.\n", ha->host_no,
9279 cmd->device->channel, cmd->device->id, cmd->device->lun);
9280
9281 DEBUG2(printk(KERN_INFO
9282 "scsi%ld: DEVICE_RESET cmd=%p jiffies = 0x%lx, to=%x,"
9283 "dpc_flags=%lx, status=%x allowed=%d\n", ha->host_no,
9284 cmd, jiffies, cmd->request->timeout / HZ,
9285 ha->dpc_flags, cmd->result, cmd->allowed));
9286
9287 rval = qla4xxx_isp_check_reg(ha);
9288 if (rval != QLA_SUCCESS) {
9289 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n");
9290 return FAILED;
9291 }
9292
9293 /* FIXME: wait for hba to go online */
9294 stat = qla4xxx_reset_lun(ha, ddb_entry, cmd->device->lun);
9295 if (stat != QLA_SUCCESS) {
9296 ql4_printk(KERN_INFO, ha, "DEVICE RESET FAILED. %d\n", stat);
9297 goto eh_dev_reset_done;
9298 }
9299
9300 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device),
9301 cmd->device)) {
9302 ql4_printk(KERN_INFO, ha,
9303 "DEVICE RESET FAILED - waiting for "
9304 "commands.\n");
9305 goto eh_dev_reset_done;
9306 }
9307
9308 /* Send marker. */
9309 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun,
9310 MM_LUN_RESET) != QLA_SUCCESS)
9311 goto eh_dev_reset_done;
9312
9313 ql4_printk(KERN_INFO, ha,
9314 "scsi(%ld:%d:%d:%llu): DEVICE RESET SUCCEEDED.\n",
9315 ha->host_no, cmd->device->channel, cmd->device->id,
9316 cmd->device->lun);
9317
9318 ret = SUCCESS;
9319
9320 eh_dev_reset_done:
9321
9322 return ret;
9323 }
9324
9325 /**
9326 * qla4xxx_eh_target_reset - callback for target reset.
9327 * @cmd: Pointer to Linux's SCSI command structure
9328 *
9329 * This routine is called by the Linux OS to reset the target.
9330 **/
9331 static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd)
9332 {
9333 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
9334 struct ddb_entry *ddb_entry = cmd->device->hostdata;
9335 int stat, ret;
9336 int rval;
9337
9338 if (!ddb_entry)
9339 return FAILED;
9340
9341 ret = iscsi_block_scsi_eh(cmd);
9342 if (ret)
9343 return ret;
9344
9345 starget_printk(KERN_INFO, scsi_target(cmd->device),
9346 "WARM TARGET RESET ISSUED.\n");
9347
9348 DEBUG2(printk(KERN_INFO
9349 "scsi%ld: TARGET_DEVICE_RESET cmd=%p jiffies = 0x%lx, "
9350 "to=%x,dpc_flags=%lx, status=%x allowed=%d\n",
9351 ha->host_no, cmd, jiffies, cmd->request->timeout / HZ,
9352 ha->dpc_flags, cmd->result, cmd->allowed));
9353
9354 rval = qla4xxx_isp_check_reg(ha);
9355 if (rval != QLA_SUCCESS) {
9356 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n");
9357 return FAILED;
9358 }
9359
9360 stat = qla4xxx_reset_target(ha, ddb_entry);
9361 if (stat != QLA_SUCCESS) {
9362 starget_printk(KERN_INFO, scsi_target(cmd->device),
9363 "WARM TARGET RESET FAILED.\n");
9364 return FAILED;
9365 }
9366
9367 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device),
9368 NULL)) {
9369 starget_printk(KERN_INFO, scsi_target(cmd->device),
9370 "WARM TARGET DEVICE RESET FAILED - "
9371 "waiting for commands.\n");
9372 return FAILED;
9373 }
9374
9375 /* Send marker. */
9376 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun,
9377 MM_TGT_WARM_RESET) != QLA_SUCCESS) {
9378 starget_printk(KERN_INFO, scsi_target(cmd->device),
9379 "WARM TARGET DEVICE RESET FAILED - "
9380 "marker iocb failed.\n");
9381 return FAILED;
9382 }
9383
9384 starget_printk(KERN_INFO, scsi_target(cmd->device),
9385 "WARM TARGET RESET SUCCEEDED.\n");
9386 return SUCCESS;
9387 }
9388
9389 /**
9390 * qla4xxx_is_eh_active - check if error handler is running
9391 * @shost: Pointer to SCSI Host struct
9392 *
9393 * This routine finds that if reset host is called in EH
9394 * scenario or from some application like sg_reset
9395 **/
9396 static int qla4xxx_is_eh_active(struct Scsi_Host *shost)
9397 {
9398 if (shost->shost_state == SHOST_RECOVERY)
9399 return 1;
9400 return 0;
9401 }
9402
9403 /**
9404 * qla4xxx_eh_host_reset - kernel callback
9405 * @cmd: Pointer to Linux's SCSI command structure
9406 *
9407 * This routine is invoked by the Linux kernel to perform fatal error
9408 * recovery on the specified adapter.
9409 **/
9410 static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd)
9411 {
9412 int return_status = FAILED;
9413 struct scsi_qla_host *ha;
9414 int rval;
9415
9416 ha = to_qla_host(cmd->device->host);
9417
9418 rval = qla4xxx_isp_check_reg(ha);
9419 if (rval != QLA_SUCCESS) {
9420 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n");
9421 return FAILED;
9422 }
9423
9424 if ((is_qla8032(ha) || is_qla8042(ha)) && ql4xdontresethba)
9425 qla4_83xx_set_idc_dontreset(ha);
9426
9427 /*
9428 * For ISP8324 and ISP8042, if IDC_CTRL DONTRESET_BIT0 is set by other
9429 * protocol drivers, we should not set device_state to NEED_RESET
9430 */
9431 if (ql4xdontresethba ||
9432 ((is_qla8032(ha) || is_qla8042(ha)) &&
9433 qla4_83xx_idc_dontreset(ha))) {
9434 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n",
9435 ha->host_no, __func__));
9436
9437 /* Clear outstanding srb in queues */
9438 if (qla4xxx_is_eh_active(cmd->device->host))
9439 qla4xxx_abort_active_cmds(ha, DID_ABORT << 16);
9440
9441 return FAILED;
9442 }
9443
9444 ql4_printk(KERN_INFO, ha,
9445 "scsi(%ld:%d:%d:%llu): HOST RESET ISSUED.\n", ha->host_no,
9446 cmd->device->channel, cmd->device->id, cmd->device->lun);
9447
9448 if (qla4xxx_wait_for_hba_online(ha) != QLA_SUCCESS) {
9449 DEBUG2(printk("scsi%ld:%d: %s: Unable to reset host. Adapter "
9450 "DEAD.\n", ha->host_no, cmd->device->channel,
9451 __func__));
9452
9453 return FAILED;
9454 }
9455
9456 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
9457 if (is_qla80XX(ha))
9458 set_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
9459 else
9460 set_bit(DPC_RESET_HA, &ha->dpc_flags);
9461 }
9462
9463 if (qla4xxx_recover_adapter(ha) == QLA_SUCCESS)
9464 return_status = SUCCESS;
9465
9466 ql4_printk(KERN_INFO, ha, "HOST RESET %s.\n",
9467 return_status == FAILED ? "FAILED" : "SUCCEEDED");
9468
9469 return return_status;
9470 }
9471
9472 static int qla4xxx_context_reset(struct scsi_qla_host *ha)
9473 {
9474 uint32_t mbox_cmd[MBOX_REG_COUNT];
9475 uint32_t mbox_sts[MBOX_REG_COUNT];
9476 struct addr_ctrl_blk_def *acb = NULL;
9477 uint32_t acb_len = sizeof(struct addr_ctrl_blk_def);
9478 int rval = QLA_SUCCESS;
9479 dma_addr_t acb_dma;
9480
9481 acb = dma_alloc_coherent(&ha->pdev->dev,
9482 sizeof(struct addr_ctrl_blk_def),
9483 &acb_dma, GFP_KERNEL);
9484 if (!acb) {
9485 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc acb\n",
9486 __func__);
9487 rval = -ENOMEM;
9488 goto exit_port_reset;
9489 }
9490
9491 memset(acb, 0, acb_len);
9492
9493 rval = qla4xxx_get_acb(ha, acb_dma, PRIMARI_ACB, acb_len);
9494 if (rval != QLA_SUCCESS) {
9495 rval = -EIO;
9496 goto exit_free_acb;
9497 }
9498
9499 rval = qla4xxx_disable_acb(ha);
9500 if (rval != QLA_SUCCESS) {
9501 rval = -EIO;
9502 goto exit_free_acb;
9503 }
9504
9505 wait_for_completion_timeout(&ha->disable_acb_comp,
9506 DISABLE_ACB_TOV * HZ);
9507
9508 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], acb_dma);
9509 if (rval != QLA_SUCCESS) {
9510 rval = -EIO;
9511 goto exit_free_acb;
9512 }
9513
9514 exit_free_acb:
9515 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk_def),
9516 acb, acb_dma);
9517 exit_port_reset:
9518 DEBUG2(ql4_printk(KERN_INFO, ha, "%s %s\n", __func__,
9519 rval == QLA_SUCCESS ? "SUCCEEDED" : "FAILED"));
9520 return rval;
9521 }
9522
9523 static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type)
9524 {
9525 struct scsi_qla_host *ha = to_qla_host(shost);
9526 int rval = QLA_SUCCESS;
9527 uint32_t idc_ctrl;
9528
9529 if (ql4xdontresethba) {
9530 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Don't Reset HBA\n",
9531 __func__));
9532 rval = -EPERM;
9533 goto exit_host_reset;
9534 }
9535
9536 if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
9537 goto recover_adapter;
9538
9539 switch (reset_type) {
9540 case SCSI_ADAPTER_RESET:
9541 set_bit(DPC_RESET_HA, &ha->dpc_flags);
9542 break;
9543 case SCSI_FIRMWARE_RESET:
9544 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
9545 if (is_qla80XX(ha))
9546 /* set firmware context reset */
9547 set_bit(DPC_RESET_HA_FW_CONTEXT,
9548 &ha->dpc_flags);
9549 else {
9550 rval = qla4xxx_context_reset(ha);
9551 goto exit_host_reset;
9552 }
9553 }
9554 break;
9555 }
9556
9557 recover_adapter:
9558 /* For ISP8324 and ISP8042 set graceful reset bit in IDC_DRV_CTRL if
9559 * reset is issued by application */
9560 if ((is_qla8032(ha) || is_qla8042(ha)) &&
9561 test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
9562 idc_ctrl = qla4_83xx_rd_reg(ha, QLA83XX_IDC_DRV_CTRL);
9563 qla4_83xx_wr_reg(ha, QLA83XX_IDC_DRV_CTRL,
9564 (idc_ctrl | GRACEFUL_RESET_BIT1));
9565 }
9566
9567 rval = qla4xxx_recover_adapter(ha);
9568 if (rval != QLA_SUCCESS) {
9569 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: recover adapter fail\n",
9570 __func__));
9571 rval = -EIO;
9572 }
9573
9574 exit_host_reset:
9575 return rval;
9576 }
9577
9578 /* PCI AER driver recovers from all correctable errors w/o
9579 * driver intervention. For uncorrectable errors PCI AER
9580 * driver calls the following device driver's callbacks
9581 *
9582 * - Fatal Errors - link_reset
9583 * - Non-Fatal Errors - driver's error_detected() which
9584 * returns CAN_RECOVER, NEED_RESET or DISCONNECT.
9585 *
9586 * PCI AER driver calls
9587 * CAN_RECOVER - driver's mmio_enabled(), mmio_enabled()
9588 * returns RECOVERED or NEED_RESET if fw_hung
9589 * NEED_RESET - driver's slot_reset()
9590 * DISCONNECT - device is dead & cannot recover
9591 * RECOVERED - driver's resume()
9592 */
9593 static pci_ers_result_t
9594 qla4xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
9595 {
9596 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9597
9598 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: error detected:state %x\n",
9599 ha->host_no, __func__, state);
9600
9601 if (!is_aer_supported(ha))
9602 return PCI_ERS_RESULT_NONE;
9603
9604 switch (state) {
9605 case pci_channel_io_normal:
9606 clear_bit(AF_EEH_BUSY, &ha->flags);
9607 return PCI_ERS_RESULT_CAN_RECOVER;
9608 case pci_channel_io_frozen:
9609 set_bit(AF_EEH_BUSY, &ha->flags);
9610 qla4xxx_mailbox_premature_completion(ha);
9611 qla4xxx_free_irqs(ha);
9612 pci_disable_device(pdev);
9613 /* Return back all IOs */
9614 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
9615 return PCI_ERS_RESULT_NEED_RESET;
9616 case pci_channel_io_perm_failure:
9617 set_bit(AF_EEH_BUSY, &ha->flags);
9618 set_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags);
9619 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
9620 return PCI_ERS_RESULT_DISCONNECT;
9621 }
9622 return PCI_ERS_RESULT_NEED_RESET;
9623 }
9624
9625 /**
9626 * qla4xxx_pci_mmio_enabled() gets called if
9627 * qla4xxx_pci_error_detected() returns PCI_ERS_RESULT_CAN_RECOVER
9628 * and read/write to the device still works.
9629 **/
9630 static pci_ers_result_t
9631 qla4xxx_pci_mmio_enabled(struct pci_dev *pdev)
9632 {
9633 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9634
9635 if (!is_aer_supported(ha))
9636 return PCI_ERS_RESULT_NONE;
9637
9638 return PCI_ERS_RESULT_RECOVERED;
9639 }
9640
9641 static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha)
9642 {
9643 uint32_t rval = QLA_ERROR;
9644 int fn;
9645 struct pci_dev *other_pdev = NULL;
9646
9647 ql4_printk(KERN_WARNING, ha, "scsi%ld: In %s\n", ha->host_no, __func__);
9648
9649 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
9650
9651 if (test_bit(AF_ONLINE, &ha->flags)) {
9652 clear_bit(AF_ONLINE, &ha->flags);
9653 clear_bit(AF_LINK_UP, &ha->flags);
9654 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session);
9655 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
9656 }
9657
9658 fn = PCI_FUNC(ha->pdev->devfn);
9659 if (is_qla8022(ha)) {
9660 while (fn > 0) {
9661 fn--;
9662 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Finding PCI device at func %x\n",
9663 ha->host_no, __func__, fn);
9664 /* Get the pci device given the domain, bus,
9665 * slot/function number */
9666 other_pdev = pci_get_domain_bus_and_slot(
9667 pci_domain_nr(ha->pdev->bus),
9668 ha->pdev->bus->number,
9669 PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
9670 fn));
9671
9672 if (!other_pdev)
9673 continue;
9674
9675 if (atomic_read(&other_pdev->enable_cnt)) {
9676 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Found PCI func in enabled state%x\n",
9677 ha->host_no, __func__, fn);
9678 pci_dev_put(other_pdev);
9679 break;
9680 }
9681 pci_dev_put(other_pdev);
9682 }
9683 } else {
9684 /* this case is meant for ISP83xx/ISP84xx only */
9685 if (qla4_83xx_can_perform_reset(ha)) {
9686 /* reset fn as iSCSI is going to perform the reset */
9687 fn = 0;
9688 }
9689 }
9690
9691 /* The first function on the card, the reset owner will
9692 * start & initialize the firmware. The other functions
9693 * on the card will reset the firmware context
9694 */
9695 if (!fn) {
9696 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn being reset "
9697 "0x%x is the owner\n", ha->host_no, __func__,
9698 ha->pdev->devfn);
9699
9700 ha->isp_ops->idc_lock(ha);
9701 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9702 QLA8XXX_DEV_COLD);
9703 ha->isp_ops->idc_unlock(ha);
9704
9705 rval = qla4_8xxx_update_idc_reg(ha);
9706 if (rval == QLA_ERROR) {
9707 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: FAILED\n",
9708 ha->host_no, __func__);
9709 ha->isp_ops->idc_lock(ha);
9710 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9711 QLA8XXX_DEV_FAILED);
9712 ha->isp_ops->idc_unlock(ha);
9713 goto exit_error_recovery;
9714 }
9715
9716 clear_bit(AF_FW_RECOVERY, &ha->flags);
9717 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
9718
9719 if (rval != QLA_SUCCESS) {
9720 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: "
9721 "FAILED\n", ha->host_no, __func__);
9722 qla4xxx_free_irqs(ha);
9723 ha->isp_ops->idc_lock(ha);
9724 qla4_8xxx_clear_drv_active(ha);
9725 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9726 QLA8XXX_DEV_FAILED);
9727 ha->isp_ops->idc_unlock(ha);
9728 } else {
9729 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: "
9730 "READY\n", ha->host_no, __func__);
9731 ha->isp_ops->idc_lock(ha);
9732 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9733 QLA8XXX_DEV_READY);
9734 /* Clear driver state register */
9735 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_STATE, 0);
9736 qla4_8xxx_set_drv_active(ha);
9737 ha->isp_ops->idc_unlock(ha);
9738 ha->isp_ops->enable_intrs(ha);
9739 }
9740 } else {
9741 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn 0x%x is not "
9742 "the reset owner\n", ha->host_no, __func__,
9743 ha->pdev->devfn);
9744 if ((qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE) ==
9745 QLA8XXX_DEV_READY)) {
9746 clear_bit(AF_FW_RECOVERY, &ha->flags);
9747 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
9748 if (rval == QLA_SUCCESS)
9749 ha->isp_ops->enable_intrs(ha);
9750 else
9751 qla4xxx_free_irqs(ha);
9752
9753 ha->isp_ops->idc_lock(ha);
9754 qla4_8xxx_set_drv_active(ha);
9755 ha->isp_ops->idc_unlock(ha);
9756 }
9757 }
9758 exit_error_recovery:
9759 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
9760 return rval;
9761 }
9762
9763 static pci_ers_result_t
9764 qla4xxx_pci_slot_reset(struct pci_dev *pdev)
9765 {
9766 pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
9767 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9768 int rc;
9769
9770 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: slot_reset\n",
9771 ha->host_no, __func__);
9772
9773 if (!is_aer_supported(ha))
9774 return PCI_ERS_RESULT_NONE;
9775
9776 /* Restore the saved state of PCIe device -
9777 * BAR registers, PCI Config space, PCIX, MSI,
9778 * IOV states
9779 */
9780 pci_restore_state(pdev);
9781
9782 /* pci_restore_state() clears the saved_state flag of the device
9783 * save restored state which resets saved_state flag
9784 */
9785 pci_save_state(pdev);
9786
9787 /* Initialize device or resume if in suspended state */
9788 rc = pci_enable_device(pdev);
9789 if (rc) {
9790 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Can't re-enable "
9791 "device after reset\n", ha->host_no, __func__);
9792 goto exit_slot_reset;
9793 }
9794
9795 ha->isp_ops->disable_intrs(ha);
9796
9797 if (is_qla80XX(ha)) {
9798 if (qla4_8xxx_error_recovery(ha) == QLA_SUCCESS) {
9799 ret = PCI_ERS_RESULT_RECOVERED;
9800 goto exit_slot_reset;
9801 } else
9802 goto exit_slot_reset;
9803 }
9804
9805 exit_slot_reset:
9806 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Return=%x\n"
9807 "device after reset\n", ha->host_no, __func__, ret);
9808 return ret;
9809 }
9810
9811 static void
9812 qla4xxx_pci_resume(struct pci_dev *pdev)
9813 {
9814 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9815 int ret;
9816
9817 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: pci_resume\n",
9818 ha->host_no, __func__);
9819
9820 ret = qla4xxx_wait_for_hba_online(ha);
9821 if (ret != QLA_SUCCESS) {
9822 ql4_printk(KERN_ERR, ha, "scsi%ld: %s: the device failed to "
9823 "resume I/O from slot/link_reset\n", ha->host_no,
9824 __func__);
9825 }
9826
9827 pci_cleanup_aer_uncorrect_error_status(pdev);
9828 clear_bit(AF_EEH_BUSY, &ha->flags);
9829 }
9830
9831 static const struct pci_error_handlers qla4xxx_err_handler = {
9832 .error_detected = qla4xxx_pci_error_detected,
9833 .mmio_enabled = qla4xxx_pci_mmio_enabled,
9834 .slot_reset = qla4xxx_pci_slot_reset,
9835 .resume = qla4xxx_pci_resume,
9836 };
9837
9838 static struct pci_device_id qla4xxx_pci_tbl[] = {
9839 {
9840 .vendor = PCI_VENDOR_ID_QLOGIC,
9841 .device = PCI_DEVICE_ID_QLOGIC_ISP4010,
9842 .subvendor = PCI_ANY_ID,
9843 .subdevice = PCI_ANY_ID,
9844 },
9845 {
9846 .vendor = PCI_VENDOR_ID_QLOGIC,
9847 .device = PCI_DEVICE_ID_QLOGIC_ISP4022,
9848 .subvendor = PCI_ANY_ID,
9849 .subdevice = PCI_ANY_ID,
9850 },
9851 {
9852 .vendor = PCI_VENDOR_ID_QLOGIC,
9853 .device = PCI_DEVICE_ID_QLOGIC_ISP4032,
9854 .subvendor = PCI_ANY_ID,
9855 .subdevice = PCI_ANY_ID,
9856 },
9857 {
9858 .vendor = PCI_VENDOR_ID_QLOGIC,
9859 .device = PCI_DEVICE_ID_QLOGIC_ISP8022,
9860 .subvendor = PCI_ANY_ID,
9861 .subdevice = PCI_ANY_ID,
9862 },
9863 {
9864 .vendor = PCI_VENDOR_ID_QLOGIC,
9865 .device = PCI_DEVICE_ID_QLOGIC_ISP8324,
9866 .subvendor = PCI_ANY_ID,
9867 .subdevice = PCI_ANY_ID,
9868 },
9869 {
9870 .vendor = PCI_VENDOR_ID_QLOGIC,
9871 .device = PCI_DEVICE_ID_QLOGIC_ISP8042,
9872 .subvendor = PCI_ANY_ID,
9873 .subdevice = PCI_ANY_ID,
9874 },
9875 {0, 0},
9876 };
9877 MODULE_DEVICE_TABLE(pci, qla4xxx_pci_tbl);
9878
9879 static struct pci_driver qla4xxx_pci_driver = {
9880 .name = DRIVER_NAME,
9881 .id_table = qla4xxx_pci_tbl,
9882 .probe = qla4xxx_probe_adapter,
9883 .remove = qla4xxx_remove_adapter,
9884 .err_handler = &qla4xxx_err_handler,
9885 };
9886
9887 static int __init qla4xxx_module_init(void)
9888 {
9889 int ret;
9890
9891 if (ql4xqfulltracking)
9892 qla4xxx_driver_template.track_queue_depth = 1;
9893
9894 /* Allocate cache for SRBs. */
9895 srb_cachep = kmem_cache_create("qla4xxx_srbs", sizeof(struct srb), 0,
9896 SLAB_HWCACHE_ALIGN, NULL);
9897 if (srb_cachep == NULL) {
9898 printk(KERN_ERR
9899 "%s: Unable to allocate SRB cache..."
9900 "Failing load!\n", DRIVER_NAME);
9901 ret = -ENOMEM;
9902 goto no_srp_cache;
9903 }
9904
9905 /* Derive version string. */
9906 strcpy(qla4xxx_version_str, QLA4XXX_DRIVER_VERSION);
9907 if (ql4xextended_error_logging)
9908 strcat(qla4xxx_version_str, "-debug");
9909
9910 qla4xxx_scsi_transport =
9911 iscsi_register_transport(&qla4xxx_iscsi_transport);
9912 if (!qla4xxx_scsi_transport){
9913 ret = -ENODEV;
9914 goto release_srb_cache;
9915 }
9916
9917 ret = pci_register_driver(&qla4xxx_pci_driver);
9918 if (ret)
9919 goto unregister_transport;
9920
9921 printk(KERN_INFO "QLogic iSCSI HBA Driver\n");
9922 return 0;
9923
9924 unregister_transport:
9925 iscsi_unregister_transport(&qla4xxx_iscsi_transport);
9926 release_srb_cache:
9927 kmem_cache_destroy(srb_cachep);
9928 no_srp_cache:
9929 return ret;
9930 }
9931
9932 static void __exit qla4xxx_module_exit(void)
9933 {
9934 pci_unregister_driver(&qla4xxx_pci_driver);
9935 iscsi_unregister_transport(&qla4xxx_iscsi_transport);
9936 kmem_cache_destroy(srb_cachep);
9937 }
9938
9939 module_init(qla4xxx_module_init);
9940 module_exit(qla4xxx_module_exit);
9941
9942 MODULE_AUTHOR("QLogic Corporation");
9943 MODULE_DESCRIPTION("QLogic iSCSI HBA Driver");
9944 MODULE_LICENSE("GPL");
9945 MODULE_VERSION(QLA4XXX_DRIVER_VERSION);
Linux with added FPC-III support