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Linux 4.19.133
[linux/fpc-iii.git] / drivers / scsi / qla4xxx / ql4_os.c
blobf59b8982b28834ca0da4f471cff55e270d7327aa
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 if (!ep)
3208 return -EINVAL;
3209 conn = cls_conn->dd_data;
3210 qla_conn = conn->dd_data;
3211 qla_conn->qla_ep = ep->dd_data;
3212 return 0;
3213 }
3214
3215 static int qla4xxx_conn_start(struct iscsi_cls_conn *cls_conn)
3216 {
3217 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
3218 struct iscsi_session *sess;
3219 struct ddb_entry *ddb_entry;
3220 struct scsi_qla_host *ha;
3221 struct dev_db_entry *fw_ddb_entry = NULL;
3222 dma_addr_t fw_ddb_entry_dma;
3223 uint32_t mbx_sts = 0;
3224 int ret = 0;
3225 int status = QLA_SUCCESS;
3226
3227 sess = cls_sess->dd_data;
3228 ddb_entry = sess->dd_data;
3229 ha = ddb_entry->ha;
3230 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: sid = %d, cid = %d\n", __func__,
3231 cls_sess->sid, cls_conn->cid));
3232
3233 /* Check if we have matching FW DDB, if yes then do not
3234 * login to this target. This could cause target to logout previous
3235 * connection
3236 */
3237 ret = qla4xxx_match_fwdb_session(ha, cls_conn);
3238 if (ret == QLA_SUCCESS) {
3239 ql4_printk(KERN_INFO, ha,
3240 "Session already exist in FW.\n");
3241 ret = -EEXIST;
3242 goto exit_conn_start;
3243 }
3244
3245 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3246 &fw_ddb_entry_dma, GFP_KERNEL);
3247 if (!fw_ddb_entry) {
3248 ql4_printk(KERN_ERR, ha,
3249 "%s: Unable to allocate dma buffer\n", __func__);
3250 ret = -ENOMEM;
3251 goto exit_conn_start;
3252 }
3253
3254 ret = qla4xxx_set_param_ddbentry(ha, ddb_entry, cls_conn, &mbx_sts);
3255 if (ret) {
3256 /* If iscsid is stopped and started then no need to do
3257 * set param again since ddb state will be already
3258 * active and FW does not allow set ddb to an
3259 * active session.
3260 */
3261 if (mbx_sts)
3262 if (ddb_entry->fw_ddb_device_state ==
3263 DDB_DS_SESSION_ACTIVE) {
3264 ddb_entry->unblock_sess(ddb_entry->sess);
3265 goto exit_set_param;
3266 }
3267
3268 ql4_printk(KERN_ERR, ha, "%s: Failed set param for index[%d]\n",
3269 __func__, ddb_entry->fw_ddb_index);
3270 goto exit_conn_start;
3271 }
3272
3273 status = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index);
3274 if (status == QLA_ERROR) {
3275 ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__,
3276 sess->targetname);
3277 ret = -EINVAL;
3278 goto exit_conn_start;
3279 }
3280
3281 if (ddb_entry->fw_ddb_device_state == DDB_DS_NO_CONNECTION_ACTIVE)
3282 ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS;
3283
3284 DEBUG2(printk(KERN_INFO "%s: DDB state [%d]\n", __func__,
3285 ddb_entry->fw_ddb_device_state));
3286
3287 exit_set_param:
3288 ret = 0;
3289
3290 exit_conn_start:
3291 if (fw_ddb_entry)
3292 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3293 fw_ddb_entry, fw_ddb_entry_dma);
3294 return ret;
3295 }
3296
3297 static void qla4xxx_conn_destroy(struct iscsi_cls_conn *cls_conn)
3298 {
3299 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
3300 struct iscsi_session *sess;
3301 struct scsi_qla_host *ha;
3302 struct ddb_entry *ddb_entry;
3303 int options;
3304
3305 sess = cls_sess->dd_data;
3306 ddb_entry = sess->dd_data;
3307 ha = ddb_entry->ha;
3308 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: cid = %d\n", __func__,
3309 cls_conn->cid));
3310
3311 options = LOGOUT_OPTION_CLOSE_SESSION;
3312 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR)
3313 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__);
3314 }
3315
3316 static void qla4xxx_task_work(struct work_struct *wdata)
3317 {
3318 struct ql4_task_data *task_data;
3319 struct scsi_qla_host *ha;
3320 struct passthru_status *sts;
3321 struct iscsi_task *task;
3322 struct iscsi_hdr *hdr;
3323 uint8_t *data;
3324 uint32_t data_len;
3325 struct iscsi_conn *conn;
3326 int hdr_len;
3327 itt_t itt;
3328
3329 task_data = container_of(wdata, struct ql4_task_data, task_work);
3330 ha = task_data->ha;
3331 task = task_data->task;
3332 sts = &task_data->sts;
3333 hdr_len = sizeof(struct iscsi_hdr);
3334
3335 DEBUG3(printk(KERN_INFO "Status returned\n"));
3336 DEBUG3(qla4xxx_dump_buffer(sts, 64));
3337 DEBUG3(printk(KERN_INFO "Response buffer"));
3338 DEBUG3(qla4xxx_dump_buffer(task_data->resp_buffer, 64));
3339
3340 conn = task->conn;
3341
3342 switch (sts->completionStatus) {
3343 case PASSTHRU_STATUS_COMPLETE:
3344 hdr = (struct iscsi_hdr *)task_data->resp_buffer;
3345 /* Assign back the itt in hdr, until we use the PREASSIGN_TAG */
3346 itt = sts->handle;
3347 hdr->itt = itt;
3348 data = task_data->resp_buffer + hdr_len;
3349 data_len = task_data->resp_len - hdr_len;
3350 iscsi_complete_pdu(conn, hdr, data, data_len);
3351 break;
3352 default:
3353 ql4_printk(KERN_ERR, ha, "Passthru failed status = 0x%x\n",
3354 sts->completionStatus);
3355 break;
3356 }
3357 return;
3358 }
3359
3360 static int qla4xxx_alloc_pdu(struct iscsi_task *task, uint8_t opcode)
3361 {
3362 struct ql4_task_data *task_data;
3363 struct iscsi_session *sess;
3364 struct ddb_entry *ddb_entry;
3365 struct scsi_qla_host *ha;
3366 int hdr_len;
3367
3368 sess = task->conn->session;
3369 ddb_entry = sess->dd_data;
3370 ha = ddb_entry->ha;
3371 task_data = task->dd_data;
3372 memset(task_data, 0, sizeof(struct ql4_task_data));
3373
3374 if (task->sc) {
3375 ql4_printk(KERN_INFO, ha,
3376 "%s: SCSI Commands not implemented\n", __func__);
3377 return -EINVAL;
3378 }
3379
3380 hdr_len = sizeof(struct iscsi_hdr);
3381 task_data->ha = ha;
3382 task_data->task = task;
3383
3384 if (task->data_count) {
3385 task_data->data_dma = dma_map_single(&ha->pdev->dev, task->data,
3386 task->data_count,
3387 PCI_DMA_TODEVICE);
3388 }
3389
3390 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n",
3391 __func__, task->conn->max_recv_dlength, hdr_len));
3392
3393 task_data->resp_len = task->conn->max_recv_dlength + hdr_len;
3394 task_data->resp_buffer = dma_alloc_coherent(&ha->pdev->dev,
3395 task_data->resp_len,
3396 &task_data->resp_dma,
3397 GFP_ATOMIC);
3398 if (!task_data->resp_buffer)
3399 goto exit_alloc_pdu;
3400
3401 task_data->req_len = task->data_count + hdr_len;
3402 task_data->req_buffer = dma_alloc_coherent(&ha->pdev->dev,
3403 task_data->req_len,
3404 &task_data->req_dma,
3405 GFP_ATOMIC);
3406 if (!task_data->req_buffer)
3407 goto exit_alloc_pdu;
3408
3409 task->hdr = task_data->req_buffer;
3410
3411 INIT_WORK(&task_data->task_work, qla4xxx_task_work);
3412
3413 return 0;
3414
3415 exit_alloc_pdu:
3416 if (task_data->resp_buffer)
3417 dma_free_coherent(&ha->pdev->dev, task_data->resp_len,
3418 task_data->resp_buffer, task_data->resp_dma);
3419
3420 if (task_data->req_buffer)
3421 dma_free_coherent(&ha->pdev->dev, task_data->req_len,
3422 task_data->req_buffer, task_data->req_dma);
3423 return -ENOMEM;
3424 }
3425
3426 static void qla4xxx_task_cleanup(struct iscsi_task *task)
3427 {
3428 struct ql4_task_data *task_data;
3429 struct iscsi_session *sess;
3430 struct ddb_entry *ddb_entry;
3431 struct scsi_qla_host *ha;
3432 int hdr_len;
3433
3434 hdr_len = sizeof(struct iscsi_hdr);
3435 sess = task->conn->session;
3436 ddb_entry = sess->dd_data;
3437 ha = ddb_entry->ha;
3438 task_data = task->dd_data;
3439
3440 if (task->data_count) {
3441 dma_unmap_single(&ha->pdev->dev, task_data->data_dma,
3442 task->data_count, PCI_DMA_TODEVICE);
3443 }
3444
3445 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n",
3446 __func__, task->conn->max_recv_dlength, hdr_len));
3447
3448 dma_free_coherent(&ha->pdev->dev, task_data->resp_len,
3449 task_data->resp_buffer, task_data->resp_dma);
3450 dma_free_coherent(&ha->pdev->dev, task_data->req_len,
3451 task_data->req_buffer, task_data->req_dma);
3452 return;
3453 }
3454
3455 static int qla4xxx_task_xmit(struct iscsi_task *task)
3456 {
3457 struct scsi_cmnd *sc = task->sc;
3458 struct iscsi_session *sess = task->conn->session;
3459 struct ddb_entry *ddb_entry = sess->dd_data;
3460 struct scsi_qla_host *ha = ddb_entry->ha;
3461
3462 if (!sc)
3463 return qla4xxx_send_passthru0(task);
3464
3465 ql4_printk(KERN_INFO, ha, "%s: scsi cmd xmit not implemented\n",
3466 __func__);
3467 return -ENOSYS;
3468 }
3469
3470 static int qla4xxx_copy_from_fwddb_param(struct iscsi_bus_flash_session *sess,
3471 struct iscsi_bus_flash_conn *conn,
3472 struct dev_db_entry *fw_ddb_entry)
3473 {
3474 unsigned long options = 0;
3475 int rc = 0;
3476
3477 options = le16_to_cpu(fw_ddb_entry->options);
3478 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options);
3479 if (test_bit(OPT_IPV6_DEVICE, &options)) {
3480 rc = iscsi_switch_str_param(&sess->portal_type,
3481 PORTAL_TYPE_IPV6);
3482 if (rc)
3483 goto exit_copy;
3484 } else {
3485 rc = iscsi_switch_str_param(&sess->portal_type,
3486 PORTAL_TYPE_IPV4);
3487 if (rc)
3488 goto exit_copy;
3489 }
3490
3491 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE,
3492 &options);
3493 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options);
3494 sess->entry_state = test_bit(OPT_ENTRY_STATE, &options);
3495
3496 options = le16_to_cpu(fw_ddb_entry->iscsi_options);
3497 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options);
3498 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options);
3499 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options);
3500 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options);
3501 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER,
3502 &options);
3503 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options);
3504 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options);
3505 conn->snack_req_en = test_bit(ISCSIOPT_SNACK_REQ_EN, &options);
3506 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN,
3507 &options);
3508 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options);
3509 sess->discovery_auth_optional =
3510 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options);
3511 if (test_bit(ISCSIOPT_ERL1, &options))
3512 sess->erl |= BIT_1;
3513 if (test_bit(ISCSIOPT_ERL0, &options))
3514 sess->erl |= BIT_0;
3515
3516 options = le16_to_cpu(fw_ddb_entry->tcp_options);
3517 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options);
3518 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options);
3519 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options);
3520 if (test_bit(TCPOPT_TIMER_SCALE3, &options))
3521 conn->tcp_timer_scale |= BIT_3;
3522 if (test_bit(TCPOPT_TIMER_SCALE2, &options))
3523 conn->tcp_timer_scale |= BIT_2;
3524 if (test_bit(TCPOPT_TIMER_SCALE1, &options))
3525 conn->tcp_timer_scale |= BIT_1;
3526
3527 conn->tcp_timer_scale >>= 1;
3528 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options);
3529
3530 options = le16_to_cpu(fw_ddb_entry->ip_options);
3531 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options);
3532
3533 conn->max_recv_dlength = BYTE_UNITS *
3534 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len);
3535 conn->max_xmit_dlength = BYTE_UNITS *
3536 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len);
3537 sess->first_burst = BYTE_UNITS *
3538 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len);
3539 sess->max_burst = BYTE_UNITS *
3540 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len);
3541 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t);
3542 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
3543 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain);
3544 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
3545 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss);
3546 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf;
3547 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf;
3548 conn->ipv6_flow_label = le16_to_cpu(fw_ddb_entry->ipv6_flow_lbl);
3549 conn->keepalive_timeout = le16_to_cpu(fw_ddb_entry->ka_timeout);
3550 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port);
3551 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn);
3552 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn);
3553 sess->discovery_parent_idx = le16_to_cpu(fw_ddb_entry->ddb_link);
3554 sess->discovery_parent_type = le16_to_cpu(fw_ddb_entry->ddb_link);
3555 sess->chap_out_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
3556 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid);
3557
3558 sess->default_taskmgmt_timeout =
3559 le16_to_cpu(fw_ddb_entry->def_timeout);
3560 conn->port = le16_to_cpu(fw_ddb_entry->port);
3561
3562 options = le16_to_cpu(fw_ddb_entry->options);
3563 conn->ipaddress = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL);
3564 if (!conn->ipaddress) {
3565 rc = -ENOMEM;
3566 goto exit_copy;
3567 }
3568
3569 conn->redirect_ipaddr = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL);
3570 if (!conn->redirect_ipaddr) {
3571 rc = -ENOMEM;
3572 goto exit_copy;
3573 }
3574
3575 memcpy(conn->ipaddress, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN);
3576 memcpy(conn->redirect_ipaddr, fw_ddb_entry->tgt_addr, IPv6_ADDR_LEN);
3577
3578 if (test_bit(OPT_IPV6_DEVICE, &options)) {
3579 conn->ipv6_traffic_class = fw_ddb_entry->ipv4_tos;
3580
3581 conn->link_local_ipv6_addr = kmemdup(
3582 fw_ddb_entry->link_local_ipv6_addr,
3583 IPv6_ADDR_LEN, GFP_KERNEL);
3584 if (!conn->link_local_ipv6_addr) {
3585 rc = -ENOMEM;
3586 goto exit_copy;
3587 }
3588 } else {
3589 conn->ipv4_tos = fw_ddb_entry->ipv4_tos;
3590 }
3591
3592 if (fw_ddb_entry->iscsi_name[0]) {
3593 rc = iscsi_switch_str_param(&sess->targetname,
3594 (char *)fw_ddb_entry->iscsi_name);
3595 if (rc)
3596 goto exit_copy;
3597 }
3598
3599 if (fw_ddb_entry->iscsi_alias[0]) {
3600 rc = iscsi_switch_str_param(&sess->targetalias,
3601 (char *)fw_ddb_entry->iscsi_alias);
3602 if (rc)
3603 goto exit_copy;
3604 }
3605
3606 COPY_ISID(sess->isid, fw_ddb_entry->isid);
3607
3608 exit_copy:
3609 return rc;
3610 }
3611
3612 static int qla4xxx_copy_to_fwddb_param(struct iscsi_bus_flash_session *sess,
3613 struct iscsi_bus_flash_conn *conn,
3614 struct dev_db_entry *fw_ddb_entry)
3615 {
3616 uint16_t options;
3617 int rc = 0;
3618
3619 options = le16_to_cpu(fw_ddb_entry->options);
3620 SET_BITVAL(conn->is_fw_assigned_ipv6, options, BIT_11);
3621 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4))
3622 options |= BIT_8;
3623 else
3624 options &= ~BIT_8;
3625
3626 SET_BITVAL(sess->auto_snd_tgt_disable, options, BIT_6);
3627 SET_BITVAL(sess->discovery_sess, options, BIT_4);
3628 SET_BITVAL(sess->entry_state, options, BIT_3);
3629 fw_ddb_entry->options = cpu_to_le16(options);
3630
3631 options = le16_to_cpu(fw_ddb_entry->iscsi_options);
3632 SET_BITVAL(conn->hdrdgst_en, options, BIT_13);
3633 SET_BITVAL(conn->datadgst_en, options, BIT_12);
3634 SET_BITVAL(sess->imm_data_en, options, BIT_11);
3635 SET_BITVAL(sess->initial_r2t_en, options, BIT_10);
3636 SET_BITVAL(sess->dataseq_inorder_en, options, BIT_9);
3637 SET_BITVAL(sess->pdu_inorder_en, options, BIT_8);
3638 SET_BITVAL(sess->chap_auth_en, options, BIT_7);
3639 SET_BITVAL(conn->snack_req_en, options, BIT_6);
3640 SET_BITVAL(sess->discovery_logout_en, options, BIT_5);
3641 SET_BITVAL(sess->bidi_chap_en, options, BIT_4);
3642 SET_BITVAL(sess->discovery_auth_optional, options, BIT_3);
3643 SET_BITVAL(sess->erl & BIT_1, options, BIT_1);
3644 SET_BITVAL(sess->erl & BIT_0, options, BIT_0);
3645 fw_ddb_entry->iscsi_options = cpu_to_le16(options);
3646
3647 options = le16_to_cpu(fw_ddb_entry->tcp_options);
3648 SET_BITVAL(conn->tcp_timestamp_stat, options, BIT_6);
3649 SET_BITVAL(conn->tcp_nagle_disable, options, BIT_5);
3650 SET_BITVAL(conn->tcp_wsf_disable, options, BIT_4);
3651 SET_BITVAL(conn->tcp_timer_scale & BIT_2, options, BIT_3);
3652 SET_BITVAL(conn->tcp_timer_scale & BIT_1, options, BIT_2);
3653 SET_BITVAL(conn->tcp_timer_scale & BIT_0, options, BIT_1);
3654 SET_BITVAL(conn->tcp_timestamp_en, options, BIT_0);
3655 fw_ddb_entry->tcp_options = cpu_to_le16(options);
3656
3657 options = le16_to_cpu(fw_ddb_entry->ip_options);
3658 SET_BITVAL(conn->fragment_disable, options, BIT_4);
3659 fw_ddb_entry->ip_options = cpu_to_le16(options);
3660
3661 fw_ddb_entry->iscsi_max_outsnd_r2t = cpu_to_le16(sess->max_r2t);
3662 fw_ddb_entry->iscsi_max_rcv_data_seg_len =
3663 cpu_to_le16(conn->max_recv_dlength / BYTE_UNITS);
3664 fw_ddb_entry->iscsi_max_snd_data_seg_len =
3665 cpu_to_le16(conn->max_xmit_dlength / BYTE_UNITS);
3666 fw_ddb_entry->iscsi_first_burst_len =
3667 cpu_to_le16(sess->first_burst / BYTE_UNITS);
3668 fw_ddb_entry->iscsi_max_burst_len = cpu_to_le16(sess->max_burst /
3669 BYTE_UNITS);
3670 fw_ddb_entry->iscsi_def_time2wait = cpu_to_le16(sess->time2wait);
3671 fw_ddb_entry->iscsi_def_time2retain = cpu_to_le16(sess->time2retain);
3672 fw_ddb_entry->tgt_portal_grp = cpu_to_le16(sess->tpgt);
3673 fw_ddb_entry->mss = cpu_to_le16(conn->max_segment_size);
3674 fw_ddb_entry->tcp_xmt_wsf = (uint8_t) cpu_to_le32(conn->tcp_xmit_wsf);
3675 fw_ddb_entry->tcp_rcv_wsf = (uint8_t) cpu_to_le32(conn->tcp_recv_wsf);
3676 fw_ddb_entry->ipv6_flow_lbl = cpu_to_le16(conn->ipv6_flow_label);
3677 fw_ddb_entry->ka_timeout = cpu_to_le16(conn->keepalive_timeout);
3678 fw_ddb_entry->lcl_port = cpu_to_le16(conn->local_port);
3679 fw_ddb_entry->stat_sn = cpu_to_le32(conn->statsn);
3680 fw_ddb_entry->exp_stat_sn = cpu_to_le32(conn->exp_statsn);
3681 fw_ddb_entry->ddb_link = cpu_to_le16(sess->discovery_parent_idx);
3682 fw_ddb_entry->chap_tbl_idx = cpu_to_le16(sess->chap_out_idx);
3683 fw_ddb_entry->tsid = cpu_to_le16(sess->tsid);
3684 fw_ddb_entry->port = cpu_to_le16(conn->port);
3685 fw_ddb_entry->def_timeout =
3686 cpu_to_le16(sess->default_taskmgmt_timeout);
3687
3688 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4))
3689 fw_ddb_entry->ipv4_tos = conn->ipv6_traffic_class;
3690 else
3691 fw_ddb_entry->ipv4_tos = conn->ipv4_tos;
3692
3693 if (conn->ipaddress)
3694 memcpy(fw_ddb_entry->ip_addr, conn->ipaddress,
3695 sizeof(fw_ddb_entry->ip_addr));
3696
3697 if (conn->redirect_ipaddr)
3698 memcpy(fw_ddb_entry->tgt_addr, conn->redirect_ipaddr,
3699 sizeof(fw_ddb_entry->tgt_addr));
3700
3701 if (conn->link_local_ipv6_addr)
3702 memcpy(fw_ddb_entry->link_local_ipv6_addr,
3703 conn->link_local_ipv6_addr,
3704 sizeof(fw_ddb_entry->link_local_ipv6_addr));
3705
3706 if (sess->targetname)
3707 memcpy(fw_ddb_entry->iscsi_name, sess->targetname,
3708 sizeof(fw_ddb_entry->iscsi_name));
3709
3710 if (sess->targetalias)
3711 memcpy(fw_ddb_entry->iscsi_alias, sess->targetalias,
3712 sizeof(fw_ddb_entry->iscsi_alias));
3713
3714 COPY_ISID(fw_ddb_entry->isid, sess->isid);
3715
3716 return rc;
3717 }
3718
3719 static void qla4xxx_copy_to_sess_conn_params(struct iscsi_conn *conn,
3720 struct iscsi_session *sess,
3721 struct dev_db_entry *fw_ddb_entry)
3722 {
3723 unsigned long options = 0;
3724 uint16_t ddb_link;
3725 uint16_t disc_parent;
3726 char ip_addr[DDB_IPADDR_LEN];
3727
3728 options = le16_to_cpu(fw_ddb_entry->options);
3729 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options);
3730 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE,
3731 &options);
3732 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options);
3733
3734 options = le16_to_cpu(fw_ddb_entry->iscsi_options);
3735 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options);
3736 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options);
3737 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options);
3738 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options);
3739 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER,
3740 &options);
3741 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options);
3742 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options);
3743 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN,
3744 &options);
3745 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options);
3746 sess->discovery_auth_optional =
3747 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options);
3748 if (test_bit(ISCSIOPT_ERL1, &options))
3749 sess->erl |= BIT_1;
3750 if (test_bit(ISCSIOPT_ERL0, &options))
3751 sess->erl |= BIT_0;
3752
3753 options = le16_to_cpu(fw_ddb_entry->tcp_options);
3754 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options);
3755 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options);
3756 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options);
3757 if (test_bit(TCPOPT_TIMER_SCALE3, &options))
3758 conn->tcp_timer_scale |= BIT_3;
3759 if (test_bit(TCPOPT_TIMER_SCALE2, &options))
3760 conn->tcp_timer_scale |= BIT_2;
3761 if (test_bit(TCPOPT_TIMER_SCALE1, &options))
3762 conn->tcp_timer_scale |= BIT_1;
3763
3764 conn->tcp_timer_scale >>= 1;
3765 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options);
3766
3767 options = le16_to_cpu(fw_ddb_entry->ip_options);
3768 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options);
3769
3770 conn->max_recv_dlength = BYTE_UNITS *
3771 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len);
3772 conn->max_xmit_dlength = BYTE_UNITS *
3773 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len);
3774 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t);
3775 sess->first_burst = BYTE_UNITS *
3776 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len);
3777 sess->max_burst = BYTE_UNITS *
3778 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len);
3779 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
3780 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain);
3781 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
3782 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss);
3783 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf;
3784 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf;
3785 conn->ipv4_tos = fw_ddb_entry->ipv4_tos;
3786 conn->keepalive_tmo = le16_to_cpu(fw_ddb_entry->ka_timeout);
3787 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port);
3788 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn);
3789 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn);
3790 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid);
3791 COPY_ISID(sess->isid, fw_ddb_entry->isid);
3792
3793 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
3794 if (ddb_link == DDB_ISNS)
3795 disc_parent = ISCSI_DISC_PARENT_ISNS;
3796 else if (ddb_link == DDB_NO_LINK)
3797 disc_parent = ISCSI_DISC_PARENT_UNKNOWN;
3798 else if (ddb_link < MAX_DDB_ENTRIES)
3799 disc_parent = ISCSI_DISC_PARENT_SENDTGT;
3800 else
3801 disc_parent = ISCSI_DISC_PARENT_UNKNOWN;
3802
3803 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_DISCOVERY_PARENT_TYPE,
3804 iscsi_get_discovery_parent_name(disc_parent), 0);
3805
3806 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_TARGET_ALIAS,
3807 (char *)fw_ddb_entry->iscsi_alias, 0);
3808
3809 options = le16_to_cpu(fw_ddb_entry->options);
3810 if (options & DDB_OPT_IPV6_DEVICE) {
3811 memset(ip_addr, 0, sizeof(ip_addr));
3812 sprintf(ip_addr, "%pI6", fw_ddb_entry->link_local_ipv6_addr);
3813 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_LOCAL_IPADDR,
3814 (char *)ip_addr, 0);
3815 }
3816 }
3817
3818 static void qla4xxx_copy_fwddb_param(struct scsi_qla_host *ha,
3819 struct dev_db_entry *fw_ddb_entry,
3820 struct iscsi_cls_session *cls_sess,
3821 struct iscsi_cls_conn *cls_conn)
3822 {
3823 int buflen = 0;
3824 struct iscsi_session *sess;
3825 struct ddb_entry *ddb_entry;
3826 struct ql4_chap_table chap_tbl;
3827 struct iscsi_conn *conn;
3828 char ip_addr[DDB_IPADDR_LEN];
3829 uint16_t options = 0;
3830
3831 sess = cls_sess->dd_data;
3832 ddb_entry = sess->dd_data;
3833 conn = cls_conn->dd_data;
3834 memset(&chap_tbl, 0, sizeof(chap_tbl));
3835
3836 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
3837
3838 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry);
3839
3840 sess->def_taskmgmt_tmo = le16_to_cpu(fw_ddb_entry->def_timeout);
3841 conn->persistent_port = le16_to_cpu(fw_ddb_entry->port);
3842
3843 memset(ip_addr, 0, sizeof(ip_addr));
3844 options = le16_to_cpu(fw_ddb_entry->options);
3845 if (options & DDB_OPT_IPV6_DEVICE) {
3846 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv6", 4);
3847
3848 memset(ip_addr, 0, sizeof(ip_addr));
3849 sprintf(ip_addr, "%pI6", fw_ddb_entry->ip_addr);
3850 } else {
3851 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv4", 4);
3852 sprintf(ip_addr, "%pI4", fw_ddb_entry->ip_addr);
3853 }
3854
3855 iscsi_set_param(cls_conn, ISCSI_PARAM_PERSISTENT_ADDRESS,
3856 (char *)ip_addr, buflen);
3857 iscsi_set_param(cls_conn, ISCSI_PARAM_TARGET_NAME,
3858 (char *)fw_ddb_entry->iscsi_name, buflen);
3859 iscsi_set_param(cls_conn, ISCSI_PARAM_INITIATOR_NAME,
3860 (char *)ha->name_string, buflen);
3861
3862 if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) {
3863 if (!qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name,
3864 chap_tbl.secret,
3865 ddb_entry->chap_tbl_idx)) {
3866 iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME,
3867 (char *)chap_tbl.name,
3868 strlen((char *)chap_tbl.name));
3869 iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD,
3870 (char *)chap_tbl.secret,
3871 chap_tbl.secret_len);
3872 }
3873 }
3874 }
3875
3876 void qla4xxx_update_session_conn_fwddb_param(struct scsi_qla_host *ha,
3877 struct ddb_entry *ddb_entry)
3878 {
3879 struct iscsi_cls_session *cls_sess;
3880 struct iscsi_cls_conn *cls_conn;
3881 uint32_t ddb_state;
3882 dma_addr_t fw_ddb_entry_dma;
3883 struct dev_db_entry *fw_ddb_entry;
3884
3885 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3886 &fw_ddb_entry_dma, GFP_KERNEL);
3887 if (!fw_ddb_entry) {
3888 ql4_printk(KERN_ERR, ha,
3889 "%s: Unable to allocate dma buffer\n", __func__);
3890 goto exit_session_conn_fwddb_param;
3891 }
3892
3893 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry,
3894 fw_ddb_entry_dma, NULL, NULL, &ddb_state,
3895 NULL, NULL, NULL) == QLA_ERROR) {
3896 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
3897 "get_ddb_entry for fw_ddb_index %d\n",
3898 ha->host_no, __func__,
3899 ddb_entry->fw_ddb_index));
3900 goto exit_session_conn_fwddb_param;
3901 }
3902
3903 cls_sess = ddb_entry->sess;
3904
3905 cls_conn = ddb_entry->conn;
3906
3907 /* Update params */
3908 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn);
3909
3910 exit_session_conn_fwddb_param:
3911 if (fw_ddb_entry)
3912 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3913 fw_ddb_entry, fw_ddb_entry_dma);
3914 }
3915
3916 void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha,
3917 struct ddb_entry *ddb_entry)
3918 {
3919 struct iscsi_cls_session *cls_sess;
3920 struct iscsi_cls_conn *cls_conn;
3921 struct iscsi_session *sess;
3922 struct iscsi_conn *conn;
3923 uint32_t ddb_state;
3924 dma_addr_t fw_ddb_entry_dma;
3925 struct dev_db_entry *fw_ddb_entry;
3926
3927 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3928 &fw_ddb_entry_dma, GFP_KERNEL);
3929 if (!fw_ddb_entry) {
3930 ql4_printk(KERN_ERR, ha,
3931 "%s: Unable to allocate dma buffer\n", __func__);
3932 goto exit_session_conn_param;
3933 }
3934
3935 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry,
3936 fw_ddb_entry_dma, NULL, NULL, &ddb_state,
3937 NULL, NULL, NULL) == QLA_ERROR) {
3938 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
3939 "get_ddb_entry for fw_ddb_index %d\n",
3940 ha->host_no, __func__,
3941 ddb_entry->fw_ddb_index));
3942 goto exit_session_conn_param;
3943 }
3944
3945 cls_sess = ddb_entry->sess;
3946 sess = cls_sess->dd_data;
3947
3948 cls_conn = ddb_entry->conn;
3949 conn = cls_conn->dd_data;
3950
3951 /* Update timers after login */
3952 ddb_entry->default_relogin_timeout =
3953 (le16_to_cpu(fw_ddb_entry->def_timeout) > LOGIN_TOV) &&
3954 (le16_to_cpu(fw_ddb_entry->def_timeout) < LOGIN_TOV * 10) ?
3955 le16_to_cpu(fw_ddb_entry->def_timeout) : LOGIN_TOV;
3956 ddb_entry->default_time2wait =
3957 le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
3958
3959 /* Update params */
3960 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
3961 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry);
3962
3963 memcpy(sess->initiatorname, ha->name_string,
3964 min(sizeof(ha->name_string), sizeof(sess->initiatorname)));
3965
3966 exit_session_conn_param:
3967 if (fw_ddb_entry)
3968 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3969 fw_ddb_entry, fw_ddb_entry_dma);
3970 }
3971
3972 /*
3973 * Timer routines
3974 */
3975 static void qla4xxx_timer(struct timer_list *t);
3976
3977 static void qla4xxx_start_timer(struct scsi_qla_host *ha,
3978 unsigned long interval)
3979 {
3980 DEBUG(printk("scsi: %s: Starting timer thread for adapter %d\n",
3981 __func__, ha->host->host_no));
3982 timer_setup(&ha->timer, qla4xxx_timer, 0);
3983 ha->timer.expires = jiffies + interval * HZ;
3984 add_timer(&ha->timer);
3985 ha->timer_active = 1;
3986 }
3987
3988 static void qla4xxx_stop_timer(struct scsi_qla_host *ha)
3989 {
3990 del_timer_sync(&ha->timer);
3991 ha->timer_active = 0;
3992 }
3993
3994 /***
3995 * qla4xxx_mark_device_missing - blocks the session
3996 * @cls_session: Pointer to the session to be blocked
3997 * @ddb_entry: Pointer to device database entry
3998 *
3999 * This routine marks a device missing and close connection.
4000 **/
4001 void qla4xxx_mark_device_missing(struct iscsi_cls_session *cls_session)
4002 {
4003 iscsi_block_session(cls_session);
4004 }
4005
4006 /**
4007 * qla4xxx_mark_all_devices_missing - mark all devices as missing.
4008 * @ha: Pointer to host adapter structure.
4009 *
4010 * This routine marks a device missing and resets the relogin retry count.
4011 **/
4012 void qla4xxx_mark_all_devices_missing(struct scsi_qla_host *ha)
4013 {
4014 iscsi_host_for_each_session(ha->host, qla4xxx_mark_device_missing);
4015 }
4016
4017 static struct srb* qla4xxx_get_new_srb(struct scsi_qla_host *ha,
4018 struct ddb_entry *ddb_entry,
4019 struct scsi_cmnd *cmd)
4020 {
4021 struct srb *srb;
4022
4023 srb = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
4024 if (!srb)
4025 return srb;
4026
4027 kref_init(&srb->srb_ref);
4028 srb->ha = ha;
4029 srb->ddb = ddb_entry;
4030 srb->cmd = cmd;
4031 srb->flags = 0;
4032 CMD_SP(cmd) = (void *)srb;
4033
4034 return srb;
4035 }
4036
4037 static void qla4xxx_srb_free_dma(struct scsi_qla_host *ha, struct srb *srb)
4038 {
4039 struct scsi_cmnd *cmd = srb->cmd;
4040
4041 if (srb->flags & SRB_DMA_VALID) {
4042 scsi_dma_unmap(cmd);
4043 srb->flags &= ~SRB_DMA_VALID;
4044 }
4045 CMD_SP(cmd) = NULL;
4046 }
4047
4048 void qla4xxx_srb_compl(struct kref *ref)
4049 {
4050 struct srb *srb = container_of(ref, struct srb, srb_ref);
4051 struct scsi_cmnd *cmd = srb->cmd;
4052 struct scsi_qla_host *ha = srb->ha;
4053
4054 qla4xxx_srb_free_dma(ha, srb);
4055
4056 mempool_free(srb, ha->srb_mempool);
4057
4058 cmd->scsi_done(cmd);
4059 }
4060
4061 /**
4062 * qla4xxx_queuecommand - scsi layer issues scsi command to driver.
4063 * @host: scsi host
4064 * @cmd: Pointer to Linux's SCSI command structure
4065 *
4066 * Remarks:
4067 * This routine is invoked by Linux to send a SCSI command to the driver.
4068 * The mid-level driver tries to ensure that queuecommand never gets
4069 * invoked concurrently with itself or the interrupt handler (although
4070 * the interrupt handler may call this routine as part of request-
4071 * completion handling). Unfortunely, it sometimes calls the scheduler
4072 * in interrupt context which is a big NO! NO!.
4073 **/
4074 static int qla4xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
4075 {
4076 struct scsi_qla_host *ha = to_qla_host(host);
4077 struct ddb_entry *ddb_entry = cmd->device->hostdata;
4078 struct iscsi_cls_session *sess = ddb_entry->sess;
4079 struct srb *srb;
4080 int rval;
4081
4082 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
4083 if (test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags))
4084 cmd->result = DID_NO_CONNECT << 16;
4085 else
4086 cmd->result = DID_REQUEUE << 16;
4087 goto qc_fail_command;
4088 }
4089
4090 if (!sess) {
4091 cmd->result = DID_IMM_RETRY << 16;
4092 goto qc_fail_command;
4093 }
4094
4095 rval = iscsi_session_chkready(sess);
4096 if (rval) {
4097 cmd->result = rval;
4098 goto qc_fail_command;
4099 }
4100
4101 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
4102 test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) ||
4103 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
4104 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) ||
4105 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) ||
4106 !test_bit(AF_ONLINE, &ha->flags) ||
4107 !test_bit(AF_LINK_UP, &ha->flags) ||
4108 test_bit(AF_LOOPBACK, &ha->flags) ||
4109 test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags) ||
4110 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags) ||
4111 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))
4112 goto qc_host_busy;
4113
4114 srb = qla4xxx_get_new_srb(ha, ddb_entry, cmd);
4115 if (!srb)
4116 goto qc_host_busy;
4117
4118 rval = qla4xxx_send_command_to_isp(ha, srb);
4119 if (rval != QLA_SUCCESS)
4120 goto qc_host_busy_free_sp;
4121
4122 return 0;
4123
4124 qc_host_busy_free_sp:
4125 qla4xxx_srb_free_dma(ha, srb);
4126 mempool_free(srb, ha->srb_mempool);
4127
4128 qc_host_busy:
4129 return SCSI_MLQUEUE_HOST_BUSY;
4130
4131 qc_fail_command:
4132 cmd->scsi_done(cmd);
4133
4134 return 0;
4135 }
4136
4137 /**
4138 * qla4xxx_mem_free - frees memory allocated to adapter
4139 * @ha: Pointer to host adapter structure.
4140 *
4141 * Frees memory previously allocated by qla4xxx_mem_alloc
4142 **/
4143 static void qla4xxx_mem_free(struct scsi_qla_host *ha)
4144 {
4145 if (ha->queues)
4146 dma_free_coherent(&ha->pdev->dev, ha->queues_len, ha->queues,
4147 ha->queues_dma);
4148
4149 if (ha->fw_dump)
4150 vfree(ha->fw_dump);
4151
4152 ha->queues_len = 0;
4153 ha->queues = NULL;
4154 ha->queues_dma = 0;
4155 ha->request_ring = NULL;
4156 ha->request_dma = 0;
4157 ha->response_ring = NULL;
4158 ha->response_dma = 0;
4159 ha->shadow_regs = NULL;
4160 ha->shadow_regs_dma = 0;
4161 ha->fw_dump = NULL;
4162 ha->fw_dump_size = 0;
4163
4164 /* Free srb pool. */
4165 if (ha->srb_mempool)
4166 mempool_destroy(ha->srb_mempool);
4167
4168 ha->srb_mempool = NULL;
4169
4170 if (ha->chap_dma_pool)
4171 dma_pool_destroy(ha->chap_dma_pool);
4172
4173 if (ha->chap_list)
4174 vfree(ha->chap_list);
4175 ha->chap_list = NULL;
4176
4177 if (ha->fw_ddb_dma_pool)
4178 dma_pool_destroy(ha->fw_ddb_dma_pool);
4179
4180 /* release io space registers */
4181 if (is_qla8022(ha)) {
4182 if (ha->nx_pcibase)
4183 iounmap(
4184 (struct device_reg_82xx __iomem *)ha->nx_pcibase);
4185 } else if (is_qla8032(ha) || is_qla8042(ha)) {
4186 if (ha->nx_pcibase)
4187 iounmap(
4188 (struct device_reg_83xx __iomem *)ha->nx_pcibase);
4189 } else if (ha->reg) {
4190 iounmap(ha->reg);
4191 }
4192
4193 if (ha->reset_tmplt.buff)
4194 vfree(ha->reset_tmplt.buff);
4195
4196 pci_release_regions(ha->pdev);
4197 }
4198
4199 /**
4200 * qla4xxx_mem_alloc - allocates memory for use by adapter.
4201 * @ha: Pointer to host adapter structure
4202 *
4203 * Allocates DMA memory for request and response queues. Also allocates memory
4204 * for srbs.
4205 **/
4206 static int qla4xxx_mem_alloc(struct scsi_qla_host *ha)
4207 {
4208 unsigned long align;
4209
4210 /* Allocate contiguous block of DMA memory for queues. */
4211 ha->queues_len = ((REQUEST_QUEUE_DEPTH * QUEUE_SIZE) +
4212 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE) +
4213 sizeof(struct shadow_regs) +
4214 MEM_ALIGN_VALUE +
4215 (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
4216 ha->queues = dma_zalloc_coherent(&ha->pdev->dev, ha->queues_len,
4217 &ha->queues_dma, GFP_KERNEL);
4218 if (ha->queues == NULL) {
4219 ql4_printk(KERN_WARNING, ha,
4220 "Memory Allocation failed - queues.\n");
4221
4222 goto mem_alloc_error_exit;
4223 }
4224
4225 /*
4226 * As per RISC alignment requirements -- the bus-address must be a
4227 * multiple of the request-ring size (in bytes).
4228 */
4229 align = 0;
4230 if ((unsigned long)ha->queues_dma & (MEM_ALIGN_VALUE - 1))
4231 align = MEM_ALIGN_VALUE - ((unsigned long)ha->queues_dma &
4232 (MEM_ALIGN_VALUE - 1));
4233
4234 /* Update request and response queue pointers. */
4235 ha->request_dma = ha->queues_dma + align;
4236 ha->request_ring = (struct queue_entry *) (ha->queues + align);
4237 ha->response_dma = ha->queues_dma + align +
4238 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE);
4239 ha->response_ring = (struct queue_entry *) (ha->queues + align +
4240 (REQUEST_QUEUE_DEPTH *
4241 QUEUE_SIZE));
4242 ha->shadow_regs_dma = ha->queues_dma + align +
4243 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE) +
4244 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE);
4245 ha->shadow_regs = (struct shadow_regs *) (ha->queues + align +
4246 (REQUEST_QUEUE_DEPTH *
4247 QUEUE_SIZE) +
4248 (RESPONSE_QUEUE_DEPTH *
4249 QUEUE_SIZE));
4250
4251 /* Allocate memory for srb pool. */
4252 ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab,
4253 mempool_free_slab, srb_cachep);
4254 if (ha->srb_mempool == NULL) {
4255 ql4_printk(KERN_WARNING, ha,
4256 "Memory Allocation failed - SRB Pool.\n");
4257
4258 goto mem_alloc_error_exit;
4259 }
4260
4261 ha->chap_dma_pool = dma_pool_create("ql4_chap", &ha->pdev->dev,
4262 CHAP_DMA_BLOCK_SIZE, 8, 0);
4263
4264 if (ha->chap_dma_pool == NULL) {
4265 ql4_printk(KERN_WARNING, ha,
4266 "%s: chap_dma_pool allocation failed..\n", __func__);
4267 goto mem_alloc_error_exit;
4268 }
4269
4270 ha->fw_ddb_dma_pool = dma_pool_create("ql4_fw_ddb", &ha->pdev->dev,
4271 DDB_DMA_BLOCK_SIZE, 8, 0);
4272
4273 if (ha->fw_ddb_dma_pool == NULL) {
4274 ql4_printk(KERN_WARNING, ha,
4275 "%s: fw_ddb_dma_pool allocation failed..\n",
4276 __func__);
4277 goto mem_alloc_error_exit;
4278 }
4279
4280 return QLA_SUCCESS;
4281
4282 mem_alloc_error_exit:
4283 return QLA_ERROR;
4284 }
4285
4286 /**
4287 * qla4_8xxx_check_temp - Check the ISP82XX temperature.
4288 * @ha: adapter block pointer.
4289 *
4290 * Note: The caller should not hold the idc lock.
4291 **/
4292 static int qla4_8xxx_check_temp(struct scsi_qla_host *ha)
4293 {
4294 uint32_t temp, temp_state, temp_val;
4295 int status = QLA_SUCCESS;
4296
4297 temp = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_TEMP_STATE);
4298
4299 temp_state = qla82xx_get_temp_state(temp);
4300 temp_val = qla82xx_get_temp_val(temp);
4301
4302 if (temp_state == QLA82XX_TEMP_PANIC) {
4303 ql4_printk(KERN_WARNING, ha, "Device temperature %d degrees C"
4304 " exceeds maximum allowed. Hardware has been shut"
4305 " down.\n", temp_val);
4306 status = QLA_ERROR;
4307 } else if (temp_state == QLA82XX_TEMP_WARN) {
4308 if (ha->temperature == QLA82XX_TEMP_NORMAL)
4309 ql4_printk(KERN_WARNING, ha, "Device temperature %d"
4310 " degrees C exceeds operating range."
4311 " Immediate action needed.\n", temp_val);
4312 } else {
4313 if (ha->temperature == QLA82XX_TEMP_WARN)
4314 ql4_printk(KERN_INFO, ha, "Device temperature is"
4315 " now %d degrees C in normal range.\n",
4316 temp_val);
4317 }
4318 ha->temperature = temp_state;
4319 return status;
4320 }
4321
4322 /**
4323 * qla4_8xxx_check_fw_alive - Check firmware health
4324 * @ha: Pointer to host adapter structure.
4325 *
4326 * Context: Interrupt
4327 **/
4328 static int qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha)
4329 {
4330 uint32_t fw_heartbeat_counter;
4331 int status = QLA_SUCCESS;
4332
4333 fw_heartbeat_counter = qla4_8xxx_rd_direct(ha,
4334 QLA8XXX_PEG_ALIVE_COUNTER);
4335 /* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */
4336 if (fw_heartbeat_counter == 0xffffffff) {
4337 DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Device in frozen "
4338 "state, QLA82XX_PEG_ALIVE_COUNTER is 0xffffffff\n",
4339 ha->host_no, __func__));
4340 return status;
4341 }
4342
4343 if (ha->fw_heartbeat_counter == fw_heartbeat_counter) {
4344 ha->seconds_since_last_heartbeat++;
4345 /* FW not alive after 2 seconds */
4346 if (ha->seconds_since_last_heartbeat == 2) {
4347 ha->seconds_since_last_heartbeat = 0;
4348 qla4_8xxx_dump_peg_reg(ha);
4349 status = QLA_ERROR;
4350 }
4351 } else
4352 ha->seconds_since_last_heartbeat = 0;
4353
4354 ha->fw_heartbeat_counter = fw_heartbeat_counter;
4355 return status;
4356 }
4357
4358 static void qla4_8xxx_process_fw_error(struct scsi_qla_host *ha)
4359 {
4360 uint32_t halt_status;
4361 int halt_status_unrecoverable = 0;
4362
4363 halt_status = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_HALT_STATUS1);
4364
4365 if (is_qla8022(ha)) {
4366 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
4367 __func__);
4368 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
4369 CRB_NIU_XG_PAUSE_CTL_P0 |
4370 CRB_NIU_XG_PAUSE_CTL_P1);
4371
4372 if (QLA82XX_FWERROR_CODE(halt_status) == 0x67)
4373 ql4_printk(KERN_ERR, ha, "%s: Firmware aborted with error code 0x00006700. Device is being reset\n",
4374 __func__);
4375 if (halt_status & HALT_STATUS_UNRECOVERABLE)
4376 halt_status_unrecoverable = 1;
4377 } else if (is_qla8032(ha) || is_qla8042(ha)) {
4378 if (halt_status & QLA83XX_HALT_STATUS_FW_RESET)
4379 ql4_printk(KERN_ERR, ha, "%s: Firmware error detected device is being reset\n",
4380 __func__);
4381 else if (halt_status & QLA83XX_HALT_STATUS_UNRECOVERABLE)
4382 halt_status_unrecoverable = 1;
4383 }
4384
4385 /*
4386 * Since we cannot change dev_state in interrupt context,
4387 * set appropriate DPC flag then wakeup DPC
4388 */
4389 if (halt_status_unrecoverable) {
4390 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags);
4391 } else {
4392 ql4_printk(KERN_INFO, ha, "%s: detect abort needed!\n",
4393 __func__);
4394 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4395 }
4396 qla4xxx_mailbox_premature_completion(ha);
4397 qla4xxx_wake_dpc(ha);
4398 }
4399
4400 /**
4401 * qla4_8xxx_watchdog - Poll dev state
4402 * @ha: Pointer to host adapter structure.
4403 *
4404 * Context: Interrupt
4405 **/
4406 void qla4_8xxx_watchdog(struct scsi_qla_host *ha)
4407 {
4408 uint32_t dev_state;
4409 uint32_t idc_ctrl;
4410
4411 if (is_qla8032(ha) &&
4412 (qla4_83xx_is_detached(ha) == QLA_SUCCESS))
4413 WARN_ONCE(1, "%s: iSCSI function %d marked invisible\n",
4414 __func__, ha->func_num);
4415
4416 /* don't poll if reset is going on */
4417 if (!(test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) ||
4418 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
4419 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags))) {
4420 dev_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE);
4421
4422 if (qla4_8xxx_check_temp(ha)) {
4423 if (is_qla8022(ha)) {
4424 ql4_printk(KERN_INFO, ha, "disabling pause transmit on port 0 & 1.\n");
4425 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
4426 CRB_NIU_XG_PAUSE_CTL_P0 |
4427 CRB_NIU_XG_PAUSE_CTL_P1);
4428 }
4429 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags);
4430 qla4xxx_wake_dpc(ha);
4431 } else if (dev_state == QLA8XXX_DEV_NEED_RESET &&
4432 !test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
4433
4434 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED RESET!\n",
4435 __func__);
4436
4437 if (is_qla8032(ha) || is_qla8042(ha)) {
4438 idc_ctrl = qla4_83xx_rd_reg(ha,
4439 QLA83XX_IDC_DRV_CTRL);
4440 if (!(idc_ctrl & GRACEFUL_RESET_BIT1)) {
4441 ql4_printk(KERN_INFO, ha, "%s: Graceful reset bit is not set\n",
4442 __func__);
4443 qla4xxx_mailbox_premature_completion(
4444 ha);
4445 }
4446 }
4447
4448 if ((is_qla8032(ha) || is_qla8042(ha)) ||
4449 (is_qla8022(ha) && !ql4xdontresethba)) {
4450 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4451 qla4xxx_wake_dpc(ha);
4452 }
4453 } else if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT &&
4454 !test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) {
4455 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED QUIES!\n",
4456 __func__);
4457 set_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags);
4458 qla4xxx_wake_dpc(ha);
4459 } else {
4460 /* Check firmware health */
4461 if (qla4_8xxx_check_fw_alive(ha))
4462 qla4_8xxx_process_fw_error(ha);
4463 }
4464 }
4465 }
4466
4467 static void qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)
4468 {
4469 struct iscsi_session *sess;
4470 struct ddb_entry *ddb_entry;
4471 struct scsi_qla_host *ha;
4472
4473 sess = cls_sess->dd_data;
4474 ddb_entry = sess->dd_data;
4475 ha = ddb_entry->ha;
4476
4477 if (!(ddb_entry->ddb_type == FLASH_DDB))
4478 return;
4479
4480 if (adapter_up(ha) && !test_bit(DF_RELOGIN, &ddb_entry->flags) &&
4481 !iscsi_is_session_online(cls_sess)) {
4482 if (atomic_read(&ddb_entry->retry_relogin_timer) !=
4483 INVALID_ENTRY) {
4484 if (atomic_read(&ddb_entry->retry_relogin_timer) ==
4485 0) {
4486 atomic_set(&ddb_entry->retry_relogin_timer,
4487 INVALID_ENTRY);
4488 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
4489 set_bit(DF_RELOGIN, &ddb_entry->flags);
4490 DEBUG2(ql4_printk(KERN_INFO, ha,
4491 "%s: index [%d] login device\n",
4492 __func__, ddb_entry->fw_ddb_index));
4493 } else
4494 atomic_dec(&ddb_entry->retry_relogin_timer);
4495 }
4496 }
4497
4498 /* Wait for relogin to timeout */
4499 if (atomic_read(&ddb_entry->relogin_timer) &&
4500 (atomic_dec_and_test(&ddb_entry->relogin_timer) != 0)) {
4501 /*
4502 * If the relogin times out and the device is
4503 * still NOT ONLINE then try and relogin again.
4504 */
4505 if (!iscsi_is_session_online(cls_sess)) {
4506 /* Reset retry relogin timer */
4507 atomic_inc(&ddb_entry->relogin_retry_count);
4508 DEBUG2(ql4_printk(KERN_INFO, ha,
4509 "%s: index[%d] relogin timed out-retrying"
4510 " relogin (%d), retry (%d)\n", __func__,
4511 ddb_entry->fw_ddb_index,
4512 atomic_read(&ddb_entry->relogin_retry_count),
4513 ddb_entry->default_time2wait + 4));
4514 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
4515 atomic_set(&ddb_entry->retry_relogin_timer,
4516 ddb_entry->default_time2wait + 4);
4517 }
4518 }
4519 }
4520
4521 /**
4522 * qla4xxx_timer - checks every second for work to do.
4523 * @ha: Pointer to host adapter structure.
4524 **/
4525 static void qla4xxx_timer(struct timer_list *t)
4526 {
4527 struct scsi_qla_host *ha = from_timer(ha, t, timer);
4528 int start_dpc = 0;
4529 uint16_t w;
4530
4531 iscsi_host_for_each_session(ha->host, qla4xxx_check_relogin_flash_ddb);
4532
4533 /* If we are in the middle of AER/EEH processing
4534 * skip any processing and reschedule the timer
4535 */
4536 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
4537 mod_timer(&ha->timer, jiffies + HZ);
4538 return;
4539 }
4540
4541 /* Hardware read to trigger an EEH error during mailbox waits. */
4542 if (!pci_channel_offline(ha->pdev))
4543 pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
4544
4545 if (is_qla80XX(ha))
4546 qla4_8xxx_watchdog(ha);
4547
4548 if (is_qla40XX(ha)) {
4549 /* Check for heartbeat interval. */
4550 if (ha->firmware_options & FWOPT_HEARTBEAT_ENABLE &&
4551 ha->heartbeat_interval != 0) {
4552 ha->seconds_since_last_heartbeat++;
4553 if (ha->seconds_since_last_heartbeat >
4554 ha->heartbeat_interval + 2)
4555 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4556 }
4557 }
4558
4559 /* Process any deferred work. */
4560 if (!list_empty(&ha->work_list))
4561 start_dpc++;
4562
4563 /* Wakeup the dpc routine for this adapter, if needed. */
4564 if (start_dpc ||
4565 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
4566 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags) ||
4567 test_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags) ||
4568 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) ||
4569 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
4570 test_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags) ||
4571 test_bit(DPC_LINK_CHANGED, &ha->dpc_flags) ||
4572 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) ||
4573 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) ||
4574 test_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags) ||
4575 test_bit(DPC_AEN, &ha->dpc_flags)) {
4576 DEBUG2(printk("scsi%ld: %s: scheduling dpc routine"
4577 " - dpc flags = 0x%lx\n",
4578 ha->host_no, __func__, ha->dpc_flags));
4579 qla4xxx_wake_dpc(ha);
4580 }
4581
4582 /* Reschedule timer thread to call us back in one second */
4583 mod_timer(&ha->timer, jiffies + HZ);
4584
4585 DEBUG2(ha->seconds_since_last_intr++);
4586 }
4587
4588 /**
4589 * qla4xxx_cmd_wait - waits for all outstanding commands to complete
4590 * @ha: Pointer to host adapter structure.
4591 *
4592 * This routine stalls the driver until all outstanding commands are returned.
4593 * Caller must release the Hardware Lock prior to calling this routine.
4594 **/
4595 static int qla4xxx_cmd_wait(struct scsi_qla_host *ha)
4596 {
4597 uint32_t index = 0;
4598 unsigned long flags;
4599 struct scsi_cmnd *cmd;
4600 unsigned long wtime;
4601 uint32_t wtmo;
4602
4603 if (is_qla40XX(ha))
4604 wtmo = WAIT_CMD_TOV;
4605 else
4606 wtmo = ha->nx_reset_timeout / 2;
4607
4608 wtime = jiffies + (wtmo * HZ);
4609
4610 DEBUG2(ql4_printk(KERN_INFO, ha,
4611 "Wait up to %u seconds for cmds to complete\n",
4612 wtmo));
4613
4614 while (!time_after_eq(jiffies, wtime)) {
4615 spin_lock_irqsave(&ha->hardware_lock, flags);
4616 /* Find a command that hasn't completed. */
4617 for (index = 0; index < ha->host->can_queue; index++) {
4618 cmd = scsi_host_find_tag(ha->host, index);
4619 /*
4620 * We cannot just check if the index is valid,
4621 * becase if we are run from the scsi eh, then
4622 * the scsi/block layer is going to prevent
4623 * the tag from being released.
4624 */
4625 if (cmd != NULL && CMD_SP(cmd))
4626 break;
4627 }
4628 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4629
4630 /* If No Commands are pending, wait is complete */
4631 if (index == ha->host->can_queue)
4632 return QLA_SUCCESS;
4633
4634 msleep(1000);
4635 }
4636 /* If we timed out on waiting for commands to come back
4637 * return ERROR. */
4638 return QLA_ERROR;
4639 }
4640
4641 int qla4xxx_hw_reset(struct scsi_qla_host *ha)
4642 {
4643 uint32_t ctrl_status;
4644 unsigned long flags = 0;
4645
4646 DEBUG2(printk(KERN_ERR "scsi%ld: %s\n", ha->host_no, __func__));
4647
4648 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS)
4649 return QLA_ERROR;
4650
4651 spin_lock_irqsave(&ha->hardware_lock, flags);
4652
4653 /*
4654 * If the SCSI Reset Interrupt bit is set, clear it.
4655 * Otherwise, the Soft Reset won't work.
4656 */
4657 ctrl_status = readw(&ha->reg->ctrl_status);
4658 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0)
4659 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status);
4660
4661 /* Issue Soft Reset */
4662 writel(set_rmask(CSR_SOFT_RESET), &ha->reg->ctrl_status);
4663 readl(&ha->reg->ctrl_status);
4664
4665 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4666 return QLA_SUCCESS;
4667 }
4668
4669 /**
4670 * qla4xxx_soft_reset - performs soft reset.
4671 * @ha: Pointer to host adapter structure.
4672 **/
4673 int qla4xxx_soft_reset(struct scsi_qla_host *ha)
4674 {
4675 uint32_t max_wait_time;
4676 unsigned long flags = 0;
4677 int status;
4678 uint32_t ctrl_status;
4679
4680 status = qla4xxx_hw_reset(ha);
4681 if (status != QLA_SUCCESS)
4682 return status;
4683
4684 status = QLA_ERROR;
4685 /* Wait until the Network Reset Intr bit is cleared */
4686 max_wait_time = RESET_INTR_TOV;
4687 do {
4688 spin_lock_irqsave(&ha->hardware_lock, flags);
4689 ctrl_status = readw(&ha->reg->ctrl_status);
4690 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4691
4692 if ((ctrl_status & CSR_NET_RESET_INTR) == 0)
4693 break;
4694
4695 msleep(1000);
4696 } while ((--max_wait_time));
4697
4698 if ((ctrl_status & CSR_NET_RESET_INTR) != 0) {
4699 DEBUG2(printk(KERN_WARNING
4700 "scsi%ld: Network Reset Intr not cleared by "
4701 "Network function, clearing it now!\n",
4702 ha->host_no));
4703 spin_lock_irqsave(&ha->hardware_lock, flags);
4704 writel(set_rmask(CSR_NET_RESET_INTR), &ha->reg->ctrl_status);
4705 readl(&ha->reg->ctrl_status);
4706 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4707 }
4708
4709 /* Wait until the firmware tells us the Soft Reset is done */
4710 max_wait_time = SOFT_RESET_TOV;
4711 do {
4712 spin_lock_irqsave(&ha->hardware_lock, flags);
4713 ctrl_status = readw(&ha->reg->ctrl_status);
4714 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4715
4716 if ((ctrl_status & CSR_SOFT_RESET) == 0) {
4717 status = QLA_SUCCESS;
4718 break;
4719 }
4720
4721 msleep(1000);
4722 } while ((--max_wait_time));
4723
4724 /*
4725 * Also, make sure that the SCSI Reset Interrupt bit has been cleared
4726 * after the soft reset has taken place.
4727 */
4728 spin_lock_irqsave(&ha->hardware_lock, flags);
4729 ctrl_status = readw(&ha->reg->ctrl_status);
4730 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) {
4731 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status);
4732 readl(&ha->reg->ctrl_status);
4733 }
4734 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4735
4736 /* If soft reset fails then most probably the bios on other
4737 * function is also enabled.
4738 * Since the initialization is sequential the other fn
4739 * wont be able to acknowledge the soft reset.
4740 * Issue a force soft reset to workaround this scenario.
4741 */
4742 if (max_wait_time == 0) {
4743 /* Issue Force Soft Reset */
4744 spin_lock_irqsave(&ha->hardware_lock, flags);
4745 writel(set_rmask(CSR_FORCE_SOFT_RESET), &ha->reg->ctrl_status);
4746 readl(&ha->reg->ctrl_status);
4747 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4748 /* Wait until the firmware tells us the Soft Reset is done */
4749 max_wait_time = SOFT_RESET_TOV;
4750 do {
4751 spin_lock_irqsave(&ha->hardware_lock, flags);
4752 ctrl_status = readw(&ha->reg->ctrl_status);
4753 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4754
4755 if ((ctrl_status & CSR_FORCE_SOFT_RESET) == 0) {
4756 status = QLA_SUCCESS;
4757 break;
4758 }
4759
4760 msleep(1000);
4761 } while ((--max_wait_time));
4762 }
4763
4764 return status;
4765 }
4766
4767 /**
4768 * qla4xxx_abort_active_cmds - returns all outstanding i/o requests to O.S.
4769 * @ha: Pointer to host adapter structure.
4770 * @res: returned scsi status
4771 *
4772 * This routine is called just prior to a HARD RESET to return all
4773 * outstanding commands back to the Operating System.
4774 * Caller should make sure that the following locks are released
4775 * before this calling routine: Hardware lock, and io_request_lock.
4776 **/
4777 static void qla4xxx_abort_active_cmds(struct scsi_qla_host *ha, int res)
4778 {
4779 struct srb *srb;
4780 int i;
4781 unsigned long flags;
4782
4783 spin_lock_irqsave(&ha->hardware_lock, flags);
4784 for (i = 0; i < ha->host->can_queue; i++) {
4785 srb = qla4xxx_del_from_active_array(ha, i);
4786 if (srb != NULL) {
4787 srb->cmd->result = res;
4788 kref_put(&srb->srb_ref, qla4xxx_srb_compl);
4789 }
4790 }
4791 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4792 }
4793
4794 void qla4xxx_dead_adapter_cleanup(struct scsi_qla_host *ha)
4795 {
4796 clear_bit(AF_ONLINE, &ha->flags);
4797
4798 /* Disable the board */
4799 ql4_printk(KERN_INFO, ha, "Disabling the board\n");
4800
4801 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
4802 qla4xxx_mark_all_devices_missing(ha);
4803 clear_bit(AF_INIT_DONE, &ha->flags);
4804 }
4805
4806 static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session)
4807 {
4808 struct iscsi_session *sess;
4809 struct ddb_entry *ddb_entry;
4810
4811 sess = cls_session->dd_data;
4812 ddb_entry = sess->dd_data;
4813 ddb_entry->fw_ddb_device_state = DDB_DS_SESSION_FAILED;
4814
4815 if (ddb_entry->ddb_type == FLASH_DDB)
4816 iscsi_block_session(ddb_entry->sess);
4817 else
4818 iscsi_session_failure(cls_session->dd_data,
4819 ISCSI_ERR_CONN_FAILED);
4820 }
4821
4822 /**
4823 * qla4xxx_recover_adapter - recovers adapter after a fatal error
4824 * @ha: Pointer to host adapter structure.
4825 **/
4826 static int qla4xxx_recover_adapter(struct scsi_qla_host *ha)
4827 {
4828 int status = QLA_ERROR;
4829 uint8_t reset_chip = 0;
4830 uint32_t dev_state;
4831 unsigned long wait;
4832
4833 /* Stall incoming I/O until we are done */
4834 scsi_block_requests(ha->host);
4835 clear_bit(AF_ONLINE, &ha->flags);
4836 clear_bit(AF_LINK_UP, &ha->flags);
4837
4838 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: adapter OFFLINE\n", __func__));
4839
4840 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
4841
4842 if ((is_qla8032(ha) || is_qla8042(ha)) &&
4843 !test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) {
4844 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
4845 __func__);
4846 /* disable pause frame for ISP83xx */
4847 qla4_83xx_disable_pause(ha);
4848 }
4849
4850 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session);
4851
4852 if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
4853 reset_chip = 1;
4854
4855 /* For the DPC_RESET_HA_INTR case (ISP-4xxx specific)
4856 * do not reset adapter, jump to initialize_adapter */
4857 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
4858 status = QLA_SUCCESS;
4859 goto recover_ha_init_adapter;
4860 }
4861
4862 /* For the ISP-8xxx adapter, issue a stop_firmware if invoked
4863 * from eh_host_reset or ioctl module */
4864 if (is_qla80XX(ha) && !reset_chip &&
4865 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) {
4866
4867 DEBUG2(ql4_printk(KERN_INFO, ha,
4868 "scsi%ld: %s - Performing stop_firmware...\n",
4869 ha->host_no, __func__));
4870 status = ha->isp_ops->reset_firmware(ha);
4871 if (status == QLA_SUCCESS) {
4872 ha->isp_ops->disable_intrs(ha);
4873 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
4874 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
4875 } else {
4876 /* If the stop_firmware fails then
4877 * reset the entire chip */
4878 reset_chip = 1;
4879 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
4880 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4881 }
4882 }
4883
4884 /* Issue full chip reset if recovering from a catastrophic error,
4885 * or if stop_firmware fails for ISP-8xxx.
4886 * This is the default case for ISP-4xxx */
4887 if (is_qla40XX(ha) || reset_chip) {
4888 if (is_qla40XX(ha))
4889 goto chip_reset;
4890
4891 /* Check if 8XXX firmware is alive or not
4892 * We may have arrived here from NEED_RESET
4893 * detection only */
4894 if (test_bit(AF_FW_RECOVERY, &ha->flags))
4895 goto chip_reset;
4896
4897 wait = jiffies + (FW_ALIVE_WAIT_TOV * HZ);
4898 while (time_before(jiffies, wait)) {
4899 if (qla4_8xxx_check_fw_alive(ha)) {
4900 qla4xxx_mailbox_premature_completion(ha);
4901 break;
4902 }
4903
4904 set_current_state(TASK_UNINTERRUPTIBLE);
4905 schedule_timeout(HZ);
4906 }
4907 chip_reset:
4908 if (!test_bit(AF_FW_RECOVERY, &ha->flags))
4909 qla4xxx_cmd_wait(ha);
4910
4911 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
4912 DEBUG2(ql4_printk(KERN_INFO, ha,
4913 "scsi%ld: %s - Performing chip reset..\n",
4914 ha->host_no, __func__));
4915 status = ha->isp_ops->reset_chip(ha);
4916 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
4917 }
4918
4919 /* Flush any pending ddb changed AENs */
4920 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
4921
4922 recover_ha_init_adapter:
4923 /* Upon successful firmware/chip reset, re-initialize the adapter */
4924 if (status == QLA_SUCCESS) {
4925 /* For ISP-4xxx, force function 1 to always initialize
4926 * before function 3 to prevent both funcions from
4927 * stepping on top of the other */
4928 if (is_qla40XX(ha) && (ha->mac_index == 3))
4929 ssleep(6);
4930
4931 /* NOTE: AF_ONLINE flag set upon successful completion of
4932 * qla4xxx_initialize_adapter */
4933 status = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
4934 if (is_qla80XX(ha) && (status == QLA_ERROR)) {
4935 status = qla4_8xxx_check_init_adapter_retry(ha);
4936 if (status == QLA_ERROR) {
4937 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Don't retry recover adapter\n",
4938 ha->host_no, __func__);
4939 qla4xxx_dead_adapter_cleanup(ha);
4940 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
4941 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
4942 clear_bit(DPC_RESET_HA_FW_CONTEXT,
4943 &ha->dpc_flags);
4944 goto exit_recover;
4945 }
4946 }
4947 }
4948
4949 /* Retry failed adapter initialization, if necessary
4950 * Do not retry initialize_adapter for RESET_HA_INTR (ISP-4xxx specific)
4951 * case to prevent ping-pong resets between functions */
4952 if (!test_bit(AF_ONLINE, &ha->flags) &&
4953 !test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
4954 /* Adapter initialization failed, see if we can retry
4955 * resetting the ha.
4956 * Since we don't want to block the DPC for too long
4957 * with multiple resets in the same thread,
4958 * utilize DPC to retry */
4959 if (is_qla80XX(ha)) {
4960 ha->isp_ops->idc_lock(ha);
4961 dev_state = qla4_8xxx_rd_direct(ha,
4962 QLA8XXX_CRB_DEV_STATE);
4963 ha->isp_ops->idc_unlock(ha);
4964 if (dev_state == QLA8XXX_DEV_FAILED) {
4965 ql4_printk(KERN_INFO, ha, "%s: don't retry "
4966 "recover adapter. H/W is in Failed "
4967 "state\n", __func__);
4968 qla4xxx_dead_adapter_cleanup(ha);
4969 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
4970 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
4971 clear_bit(DPC_RESET_HA_FW_CONTEXT,
4972 &ha->dpc_flags);
4973 status = QLA_ERROR;
4974
4975 goto exit_recover;
4976 }
4977 }
4978
4979 if (!test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags)) {
4980 ha->retry_reset_ha_cnt = MAX_RESET_HA_RETRIES;
4981 DEBUG2(printk("scsi%ld: recover adapter - retrying "
4982 "(%d) more times\n", ha->host_no,
4983 ha->retry_reset_ha_cnt));
4984 set_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
4985 status = QLA_ERROR;
4986 } else {
4987 if (ha->retry_reset_ha_cnt > 0) {
4988 /* Schedule another Reset HA--DPC will retry */
4989 ha->retry_reset_ha_cnt--;
4990 DEBUG2(printk("scsi%ld: recover adapter - "
4991 "retry remaining %d\n",
4992 ha->host_no,
4993 ha->retry_reset_ha_cnt));
4994 status = QLA_ERROR;
4995 }
4996
4997 if (ha->retry_reset_ha_cnt == 0) {
4998 /* Recover adapter retries have been exhausted.
4999 * Adapter DEAD */
5000 DEBUG2(printk("scsi%ld: recover adapter "
5001 "failed - board disabled\n",
5002 ha->host_no));
5003 qla4xxx_dead_adapter_cleanup(ha);
5004 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
5005 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
5006 clear_bit(DPC_RESET_HA_FW_CONTEXT,
5007 &ha->dpc_flags);
5008 status = QLA_ERROR;
5009 }
5010 }
5011 } else {
5012 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
5013 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
5014 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
5015 }
5016
5017 exit_recover:
5018 ha->adapter_error_count++;
5019
5020 if (test_bit(AF_ONLINE, &ha->flags))
5021 ha->isp_ops->enable_intrs(ha);
5022
5023 scsi_unblock_requests(ha->host);
5024
5025 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
5026 DEBUG2(printk("scsi%ld: recover adapter: %s\n", ha->host_no,
5027 status == QLA_ERROR ? "FAILED" : "SUCCEEDED"));
5028
5029 return status;
5030 }
5031
5032 static void qla4xxx_relogin_devices(struct iscsi_cls_session *cls_session)
5033 {
5034 struct iscsi_session *sess;
5035 struct ddb_entry *ddb_entry;
5036 struct scsi_qla_host *ha;
5037
5038 sess = cls_session->dd_data;
5039 ddb_entry = sess->dd_data;
5040 ha = ddb_entry->ha;
5041 if (!iscsi_is_session_online(cls_session)) {
5042 if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) {
5043 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5044 " unblock session\n", ha->host_no, __func__,
5045 ddb_entry->fw_ddb_index);
5046 iscsi_unblock_session(ddb_entry->sess);
5047 } else {
5048 /* Trigger relogin */
5049 if (ddb_entry->ddb_type == FLASH_DDB) {
5050 if (!(test_bit(DF_RELOGIN, &ddb_entry->flags) ||
5051 test_bit(DF_DISABLE_RELOGIN,
5052 &ddb_entry->flags)))
5053 qla4xxx_arm_relogin_timer(ddb_entry);
5054 } else
5055 iscsi_session_failure(cls_session->dd_data,
5056 ISCSI_ERR_CONN_FAILED);
5057 }
5058 }
5059 }
5060
5061 int qla4xxx_unblock_flash_ddb(struct iscsi_cls_session *cls_session)
5062 {
5063 struct iscsi_session *sess;
5064 struct ddb_entry *ddb_entry;
5065 struct scsi_qla_host *ha;
5066
5067 sess = cls_session->dd_data;
5068 ddb_entry = sess->dd_data;
5069 ha = ddb_entry->ha;
5070 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5071 " unblock session\n", ha->host_no, __func__,
5072 ddb_entry->fw_ddb_index);
5073
5074 iscsi_unblock_session(ddb_entry->sess);
5075
5076 /* Start scan target */
5077 if (test_bit(AF_ONLINE, &ha->flags)) {
5078 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5079 " start scan\n", ha->host_no, __func__,
5080 ddb_entry->fw_ddb_index);
5081 scsi_queue_work(ha->host, &ddb_entry->sess->scan_work);
5082 }
5083 return QLA_SUCCESS;
5084 }
5085
5086 int qla4xxx_unblock_ddb(struct iscsi_cls_session *cls_session)
5087 {
5088 struct iscsi_session *sess;
5089 struct ddb_entry *ddb_entry;
5090 struct scsi_qla_host *ha;
5091 int status = QLA_SUCCESS;
5092
5093 sess = cls_session->dd_data;
5094 ddb_entry = sess->dd_data;
5095 ha = ddb_entry->ha;
5096 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5097 " unblock user space session\n", ha->host_no, __func__,
5098 ddb_entry->fw_ddb_index);
5099
5100 if (!iscsi_is_session_online(cls_session)) {
5101 iscsi_conn_start(ddb_entry->conn);
5102 iscsi_conn_login_event(ddb_entry->conn,
5103 ISCSI_CONN_STATE_LOGGED_IN);
5104 } else {
5105 ql4_printk(KERN_INFO, ha,
5106 "scsi%ld: %s: ddb[%d] session [%d] already logged in\n",
5107 ha->host_no, __func__, ddb_entry->fw_ddb_index,
5108 cls_session->sid);
5109 status = QLA_ERROR;
5110 }
5111
5112 return status;
5113 }
5114
5115 static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha)
5116 {
5117 iscsi_host_for_each_session(ha->host, qla4xxx_relogin_devices);
5118 }
5119
5120 static void qla4xxx_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)
5121 {
5122 uint16_t relogin_timer;
5123 struct iscsi_session *sess;
5124 struct ddb_entry *ddb_entry;
5125 struct scsi_qla_host *ha;
5126
5127 sess = cls_sess->dd_data;
5128 ddb_entry = sess->dd_data;
5129 ha = ddb_entry->ha;
5130
5131 relogin_timer = max(ddb_entry->default_relogin_timeout,
5132 (uint16_t)RELOGIN_TOV);
5133 atomic_set(&ddb_entry->relogin_timer, relogin_timer);
5134
5135 DEBUG2(ql4_printk(KERN_INFO, ha,
5136 "scsi%ld: Relogin index [%d]. TOV=%d\n", ha->host_no,
5137 ddb_entry->fw_ddb_index, relogin_timer));
5138
5139 qla4xxx_login_flash_ddb(cls_sess);
5140 }
5141
5142 static void qla4xxx_dpc_relogin(struct iscsi_cls_session *cls_sess)
5143 {
5144 struct iscsi_session *sess;
5145 struct ddb_entry *ddb_entry;
5146 struct scsi_qla_host *ha;
5147
5148 sess = cls_sess->dd_data;
5149 ddb_entry = sess->dd_data;
5150 ha = ddb_entry->ha;
5151
5152 if (!(ddb_entry->ddb_type == FLASH_DDB))
5153 return;
5154
5155 if (test_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags))
5156 return;
5157
5158 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags) &&
5159 !iscsi_is_session_online(cls_sess)) {
5160 DEBUG2(ql4_printk(KERN_INFO, ha,
5161 "relogin issued\n"));
5162 qla4xxx_relogin_flash_ddb(cls_sess);
5163 }
5164 }
5165
5166 void qla4xxx_wake_dpc(struct scsi_qla_host *ha)
5167 {
5168 if (ha->dpc_thread)
5169 queue_work(ha->dpc_thread, &ha->dpc_work);
5170 }
5171
5172 static struct qla4_work_evt *
5173 qla4xxx_alloc_work(struct scsi_qla_host *ha, uint32_t data_size,
5174 enum qla4_work_type type)
5175 {
5176 struct qla4_work_evt *e;
5177 uint32_t size = sizeof(struct qla4_work_evt) + data_size;
5178
5179 e = kzalloc(size, GFP_ATOMIC);
5180 if (!e)
5181 return NULL;
5182
5183 INIT_LIST_HEAD(&e->list);
5184 e->type = type;
5185 return e;
5186 }
5187
5188 static void qla4xxx_post_work(struct scsi_qla_host *ha,
5189 struct qla4_work_evt *e)
5190 {
5191 unsigned long flags;
5192
5193 spin_lock_irqsave(&ha->work_lock, flags);
5194 list_add_tail(&e->list, &ha->work_list);
5195 spin_unlock_irqrestore(&ha->work_lock, flags);
5196 qla4xxx_wake_dpc(ha);
5197 }
5198
5199 int qla4xxx_post_aen_work(struct scsi_qla_host *ha,
5200 enum iscsi_host_event_code aen_code,
5201 uint32_t data_size, uint8_t *data)
5202 {
5203 struct qla4_work_evt *e;
5204
5205 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_AEN);
5206 if (!e)
5207 return QLA_ERROR;
5208
5209 e->u.aen.code = aen_code;
5210 e->u.aen.data_size = data_size;
5211 memcpy(e->u.aen.data, data, data_size);
5212
5213 qla4xxx_post_work(ha, e);
5214
5215 return QLA_SUCCESS;
5216 }
5217
5218 int qla4xxx_post_ping_evt_work(struct scsi_qla_host *ha,
5219 uint32_t status, uint32_t pid,
5220 uint32_t data_size, uint8_t *data)
5221 {
5222 struct qla4_work_evt *e;
5223
5224 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_PING_STATUS);
5225 if (!e)
5226 return QLA_ERROR;
5227
5228 e->u.ping.status = status;
5229 e->u.ping.pid = pid;
5230 e->u.ping.data_size = data_size;
5231 memcpy(e->u.ping.data, data, data_size);
5232
5233 qla4xxx_post_work(ha, e);
5234
5235 return QLA_SUCCESS;
5236 }
5237
5238 static void qla4xxx_do_work(struct scsi_qla_host *ha)
5239 {
5240 struct qla4_work_evt *e, *tmp;
5241 unsigned long flags;
5242 LIST_HEAD(work);
5243
5244 spin_lock_irqsave(&ha->work_lock, flags);
5245 list_splice_init(&ha->work_list, &work);
5246 spin_unlock_irqrestore(&ha->work_lock, flags);
5247
5248 list_for_each_entry_safe(e, tmp, &work, list) {
5249 list_del_init(&e->list);
5250
5251 switch (e->type) {
5252 case QLA4_EVENT_AEN:
5253 iscsi_post_host_event(ha->host_no,
5254 &qla4xxx_iscsi_transport,
5255 e->u.aen.code,
5256 e->u.aen.data_size,
5257 e->u.aen.data);
5258 break;
5259 case QLA4_EVENT_PING_STATUS:
5260 iscsi_ping_comp_event(ha->host_no,
5261 &qla4xxx_iscsi_transport,
5262 e->u.ping.status,
5263 e->u.ping.pid,
5264 e->u.ping.data_size,
5265 e->u.ping.data);
5266 break;
5267 default:
5268 ql4_printk(KERN_WARNING, ha, "event type: 0x%x not "
5269 "supported", e->type);
5270 }
5271 kfree(e);
5272 }
5273 }
5274
5275 /**
5276 * qla4xxx_do_dpc - dpc routine
5277 * @data: in our case pointer to adapter structure
5278 *
5279 * This routine is a task that is schedule by the interrupt handler
5280 * to perform the background processing for interrupts. We put it
5281 * on a task queue that is consumed whenever the scheduler runs; that's
5282 * so you can do anything (i.e. put the process to sleep etc). In fact,
5283 * the mid-level tries to sleep when it reaches the driver threshold
5284 * "host->can_queue". This can cause a panic if we were in our interrupt code.
5285 **/
5286 static void qla4xxx_do_dpc(struct work_struct *work)
5287 {
5288 struct scsi_qla_host *ha =
5289 container_of(work, struct scsi_qla_host, dpc_work);
5290 int status = QLA_ERROR;
5291
5292 DEBUG2(ql4_printk(KERN_INFO, ha,
5293 "scsi%ld: %s: DPC handler waking up. flags = 0x%08lx, dpc_flags = 0x%08lx\n",
5294 ha->host_no, __func__, ha->flags, ha->dpc_flags));
5295
5296 /* Initialization not yet finished. Don't do anything yet. */
5297 if (!test_bit(AF_INIT_DONE, &ha->flags))
5298 return;
5299
5300 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
5301 DEBUG2(printk(KERN_INFO "scsi%ld: %s: flags = %lx\n",
5302 ha->host_no, __func__, ha->flags));
5303 return;
5304 }
5305
5306 /* post events to application */
5307 qla4xxx_do_work(ha);
5308
5309 if (is_qla80XX(ha)) {
5310 if (test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags)) {
5311 if (is_qla8032(ha) || is_qla8042(ha)) {
5312 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
5313 __func__);
5314 /* disable pause frame for ISP83xx */
5315 qla4_83xx_disable_pause(ha);
5316 }
5317
5318 ha->isp_ops->idc_lock(ha);
5319 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
5320 QLA8XXX_DEV_FAILED);
5321 ha->isp_ops->idc_unlock(ha);
5322 ql4_printk(KERN_INFO, ha, "HW State: FAILED\n");
5323 qla4_8xxx_device_state_handler(ha);
5324 }
5325
5326 if (test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags)) {
5327 if (is_qla8042(ha)) {
5328 if (ha->idc_info.info2 &
5329 ENABLE_INTERNAL_LOOPBACK) {
5330 ql4_printk(KERN_INFO, ha, "%s: Disabling ACB\n",
5331 __func__);
5332 status = qla4_84xx_config_acb(ha,
5333 ACB_CONFIG_DISABLE);
5334 if (status != QLA_SUCCESS) {
5335 ql4_printk(KERN_INFO, ha, "%s: ACB config failed\n",
5336 __func__);
5337 }
5338 }
5339 }
5340 qla4_83xx_post_idc_ack(ha);
5341 clear_bit(DPC_POST_IDC_ACK, &ha->dpc_flags);
5342 }
5343
5344 if (is_qla8042(ha) &&
5345 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags)) {
5346 ql4_printk(KERN_INFO, ha, "%s: Restoring ACB\n",
5347 __func__);
5348 if (qla4_84xx_config_acb(ha, ACB_CONFIG_SET) !=
5349 QLA_SUCCESS) {
5350 ql4_printk(KERN_INFO, ha, "%s: ACB config failed ",
5351 __func__);
5352 }
5353 clear_bit(DPC_RESTORE_ACB, &ha->dpc_flags);
5354 }
5355
5356 if (test_and_clear_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) {
5357 qla4_8xxx_need_qsnt_handler(ha);
5358 }
5359 }
5360
5361 if (!test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) &&
5362 (test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
5363 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
5364 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))) {
5365 if ((is_qla8022(ha) && ql4xdontresethba) ||
5366 ((is_qla8032(ha) || is_qla8042(ha)) &&
5367 qla4_83xx_idc_dontreset(ha))) {
5368 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n",
5369 ha->host_no, __func__));
5370 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
5371 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags);
5372 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
5373 goto dpc_post_reset_ha;
5374 }
5375 if (test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) ||
5376 test_bit(DPC_RESET_HA, &ha->dpc_flags))
5377 qla4xxx_recover_adapter(ha);
5378
5379 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
5380 uint8_t wait_time = RESET_INTR_TOV;
5381
5382 while ((readw(&ha->reg->ctrl_status) &
5383 (CSR_SOFT_RESET | CSR_FORCE_SOFT_RESET)) != 0) {
5384 if (--wait_time == 0)
5385 break;
5386 msleep(1000);
5387 }
5388 if (wait_time == 0)
5389 DEBUG2(printk("scsi%ld: %s: SR|FSR "
5390 "bit not cleared-- resetting\n",
5391 ha->host_no, __func__));
5392 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
5393 if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS) {
5394 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
5395 status = qla4xxx_recover_adapter(ha);
5396 }
5397 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags);
5398 if (status == QLA_SUCCESS)
5399 ha->isp_ops->enable_intrs(ha);
5400 }
5401 }
5402
5403 dpc_post_reset_ha:
5404 /* ---- process AEN? --- */
5405 if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags))
5406 qla4xxx_process_aen(ha, PROCESS_ALL_AENS);
5407
5408 /* ---- Get DHCP IP Address? --- */
5409 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags))
5410 qla4xxx_get_dhcp_ip_address(ha);
5411
5412 /* ---- relogin device? --- */
5413 if (adapter_up(ha) &&
5414 test_and_clear_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags)) {
5415 iscsi_host_for_each_session(ha->host, qla4xxx_dpc_relogin);
5416 }
5417
5418 /* ---- link change? --- */
5419 if (!test_bit(AF_LOOPBACK, &ha->flags) &&
5420 test_and_clear_bit(DPC_LINK_CHANGED, &ha->dpc_flags)) {
5421 if (!test_bit(AF_LINK_UP, &ha->flags)) {
5422 /* ---- link down? --- */
5423 qla4xxx_mark_all_devices_missing(ha);
5424 } else {
5425 /* ---- link up? --- *
5426 * F/W will auto login to all devices ONLY ONCE after
5427 * link up during driver initialization and runtime
5428 * fatal error recovery. Therefore, the driver must
5429 * manually relogin to devices when recovering from
5430 * connection failures, logouts, expired KATO, etc. */
5431 if (test_and_clear_bit(AF_BUILD_DDB_LIST, &ha->flags)) {
5432 qla4xxx_build_ddb_list(ha, ha->is_reset);
5433 iscsi_host_for_each_session(ha->host,
5434 qla4xxx_login_flash_ddb);
5435 } else
5436 qla4xxx_relogin_all_devices(ha);
5437 }
5438 }
5439 if (test_and_clear_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags)) {
5440 if (qla4xxx_sysfs_ddb_export(ha))
5441 ql4_printk(KERN_ERR, ha, "%s: Error exporting ddb to sysfs\n",
5442 __func__);
5443 }
5444 }
5445
5446 /**
5447 * qla4xxx_free_adapter - release the adapter
5448 * @ha: pointer to adapter structure
5449 **/
5450 static void qla4xxx_free_adapter(struct scsi_qla_host *ha)
5451 {
5452 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
5453
5454 /* Turn-off interrupts on the card. */
5455 ha->isp_ops->disable_intrs(ha);
5456
5457 if (is_qla40XX(ha)) {
5458 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR),
5459 &ha->reg->ctrl_status);
5460 readl(&ha->reg->ctrl_status);
5461 } else if (is_qla8022(ha)) {
5462 writel(0, &ha->qla4_82xx_reg->host_int);
5463 readl(&ha->qla4_82xx_reg->host_int);
5464 } else if (is_qla8032(ha) || is_qla8042(ha)) {
5465 writel(0, &ha->qla4_83xx_reg->risc_intr);
5466 readl(&ha->qla4_83xx_reg->risc_intr);
5467 }
5468
5469 /* Remove timer thread, if present */
5470 if (ha->timer_active)
5471 qla4xxx_stop_timer(ha);
5472
5473 /* Kill the kernel thread for this host */
5474 if (ha->dpc_thread)
5475 destroy_workqueue(ha->dpc_thread);
5476
5477 /* Kill the kernel thread for this host */
5478 if (ha->task_wq)
5479 destroy_workqueue(ha->task_wq);
5480
5481 /* Put firmware in known state */
5482 ha->isp_ops->reset_firmware(ha);
5483
5484 if (is_qla80XX(ha)) {
5485 ha->isp_ops->idc_lock(ha);
5486 qla4_8xxx_clear_drv_active(ha);
5487 ha->isp_ops->idc_unlock(ha);
5488 }
5489
5490 /* Detach interrupts */
5491 qla4xxx_free_irqs(ha);
5492
5493 /* free extra memory */
5494 qla4xxx_mem_free(ha);
5495 }
5496
5497 int qla4_8xxx_iospace_config(struct scsi_qla_host *ha)
5498 {
5499 int status = 0;
5500 unsigned long mem_base, mem_len, db_base, db_len;
5501 struct pci_dev *pdev = ha->pdev;
5502
5503 status = pci_request_regions(pdev, DRIVER_NAME);
5504 if (status) {
5505 printk(KERN_WARNING
5506 "scsi(%ld) Failed to reserve PIO regions (%s) "
5507 "status=%d\n", ha->host_no, pci_name(pdev), status);
5508 goto iospace_error_exit;
5509 }
5510
5511 DEBUG2(printk(KERN_INFO "%s: revision-id=%d\n",
5512 __func__, pdev->revision));
5513 ha->revision_id = pdev->revision;
5514
5515 /* remap phys address */
5516 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
5517 mem_len = pci_resource_len(pdev, 0);
5518 DEBUG2(printk(KERN_INFO "%s: ioremap from %lx a size of %lx\n",
5519 __func__, mem_base, mem_len));
5520
5521 /* mapping of pcibase pointer */
5522 ha->nx_pcibase = (unsigned long)ioremap(mem_base, mem_len);
5523 if (!ha->nx_pcibase) {
5524 printk(KERN_ERR
5525 "cannot remap MMIO (%s), aborting\n", pci_name(pdev));
5526 pci_release_regions(ha->pdev);
5527 goto iospace_error_exit;
5528 }
5529
5530 /* Mapping of IO base pointer, door bell read and write pointer */
5531
5532 /* mapping of IO base pointer */
5533 if (is_qla8022(ha)) {
5534 ha->qla4_82xx_reg = (struct device_reg_82xx __iomem *)
5535 ((uint8_t *)ha->nx_pcibase + 0xbc000 +
5536 (ha->pdev->devfn << 11));
5537 ha->nx_db_wr_ptr = (ha->pdev->devfn == 4 ? QLA82XX_CAM_RAM_DB1 :
5538 QLA82XX_CAM_RAM_DB2);
5539 } else if (is_qla8032(ha) || is_qla8042(ha)) {
5540 ha->qla4_83xx_reg = (struct device_reg_83xx __iomem *)
5541 ((uint8_t *)ha->nx_pcibase);
5542 }
5543
5544 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
5545 db_len = pci_resource_len(pdev, 4);
5546
5547 return 0;
5548 iospace_error_exit:
5549 return -ENOMEM;
5550 }
5551
5552 /***
5553 * qla4xxx_iospace_config - maps registers
5554 * @ha: pointer to adapter structure
5555 *
5556 * This routines maps HBA's registers from the pci address space
5557 * into the kernel virtual address space for memory mapped i/o.
5558 **/
5559 int qla4xxx_iospace_config(struct scsi_qla_host *ha)
5560 {
5561 unsigned long pio, pio_len, pio_flags;
5562 unsigned long mmio, mmio_len, mmio_flags;
5563
5564 pio = pci_resource_start(ha->pdev, 0);
5565 pio_len = pci_resource_len(ha->pdev, 0);
5566 pio_flags = pci_resource_flags(ha->pdev, 0);
5567 if (pio_flags & IORESOURCE_IO) {
5568 if (pio_len < MIN_IOBASE_LEN) {
5569 ql4_printk(KERN_WARNING, ha,
5570 "Invalid PCI I/O region size\n");
5571 pio = 0;
5572 }
5573 } else {
5574 ql4_printk(KERN_WARNING, ha, "region #0 not a PIO resource\n");
5575 pio = 0;
5576 }
5577
5578 /* Use MMIO operations for all accesses. */
5579 mmio = pci_resource_start(ha->pdev, 1);
5580 mmio_len = pci_resource_len(ha->pdev, 1);
5581 mmio_flags = pci_resource_flags(ha->pdev, 1);
5582
5583 if (!(mmio_flags & IORESOURCE_MEM)) {
5584 ql4_printk(KERN_ERR, ha,
5585 "region #0 not an MMIO resource, aborting\n");
5586
5587 goto iospace_error_exit;
5588 }
5589
5590 if (mmio_len < MIN_IOBASE_LEN) {
5591 ql4_printk(KERN_ERR, ha,
5592 "Invalid PCI mem region size, aborting\n");
5593 goto iospace_error_exit;
5594 }
5595
5596 if (pci_request_regions(ha->pdev, DRIVER_NAME)) {
5597 ql4_printk(KERN_WARNING, ha,
5598 "Failed to reserve PIO/MMIO regions\n");
5599
5600 goto iospace_error_exit;
5601 }
5602
5603 ha->pio_address = pio;
5604 ha->pio_length = pio_len;
5605 ha->reg = ioremap(mmio, MIN_IOBASE_LEN);
5606 if (!ha->reg) {
5607 ql4_printk(KERN_ERR, ha,
5608 "cannot remap MMIO, aborting\n");
5609
5610 goto iospace_error_exit;
5611 }
5612
5613 return 0;
5614
5615 iospace_error_exit:
5616 return -ENOMEM;
5617 }
5618
5619 static struct isp_operations qla4xxx_isp_ops = {
5620 .iospace_config = qla4xxx_iospace_config,
5621 .pci_config = qla4xxx_pci_config,
5622 .disable_intrs = qla4xxx_disable_intrs,
5623 .enable_intrs = qla4xxx_enable_intrs,
5624 .start_firmware = qla4xxx_start_firmware,
5625 .intr_handler = qla4xxx_intr_handler,
5626 .interrupt_service_routine = qla4xxx_interrupt_service_routine,
5627 .reset_chip = qla4xxx_soft_reset,
5628 .reset_firmware = qla4xxx_hw_reset,
5629 .queue_iocb = qla4xxx_queue_iocb,
5630 .complete_iocb = qla4xxx_complete_iocb,
5631 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out,
5632 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in,
5633 .get_sys_info = qla4xxx_get_sys_info,
5634 .queue_mailbox_command = qla4xxx_queue_mbox_cmd,
5635 .process_mailbox_interrupt = qla4xxx_process_mbox_intr,
5636 };
5637
5638 static struct isp_operations qla4_82xx_isp_ops = {
5639 .iospace_config = qla4_8xxx_iospace_config,
5640 .pci_config = qla4_8xxx_pci_config,
5641 .disable_intrs = qla4_82xx_disable_intrs,
5642 .enable_intrs = qla4_82xx_enable_intrs,
5643 .start_firmware = qla4_8xxx_load_risc,
5644 .restart_firmware = qla4_82xx_try_start_fw,
5645 .intr_handler = qla4_82xx_intr_handler,
5646 .interrupt_service_routine = qla4_82xx_interrupt_service_routine,
5647 .need_reset = qla4_8xxx_need_reset,
5648 .reset_chip = qla4_82xx_isp_reset,
5649 .reset_firmware = qla4_8xxx_stop_firmware,
5650 .queue_iocb = qla4_82xx_queue_iocb,
5651 .complete_iocb = qla4_82xx_complete_iocb,
5652 .rd_shdw_req_q_out = qla4_82xx_rd_shdw_req_q_out,
5653 .rd_shdw_rsp_q_in = qla4_82xx_rd_shdw_rsp_q_in,
5654 .get_sys_info = qla4_8xxx_get_sys_info,
5655 .rd_reg_direct = qla4_82xx_rd_32,
5656 .wr_reg_direct = qla4_82xx_wr_32,
5657 .rd_reg_indirect = qla4_82xx_md_rd_32,
5658 .wr_reg_indirect = qla4_82xx_md_wr_32,
5659 .idc_lock = qla4_82xx_idc_lock,
5660 .idc_unlock = qla4_82xx_idc_unlock,
5661 .rom_lock_recovery = qla4_82xx_rom_lock_recovery,
5662 .queue_mailbox_command = qla4_82xx_queue_mbox_cmd,
5663 .process_mailbox_interrupt = qla4_82xx_process_mbox_intr,
5664 };
5665
5666 static struct isp_operations qla4_83xx_isp_ops = {
5667 .iospace_config = qla4_8xxx_iospace_config,
5668 .pci_config = qla4_8xxx_pci_config,
5669 .disable_intrs = qla4_83xx_disable_intrs,
5670 .enable_intrs = qla4_83xx_enable_intrs,
5671 .start_firmware = qla4_8xxx_load_risc,
5672 .restart_firmware = qla4_83xx_start_firmware,
5673 .intr_handler = qla4_83xx_intr_handler,
5674 .interrupt_service_routine = qla4_83xx_interrupt_service_routine,
5675 .need_reset = qla4_8xxx_need_reset,
5676 .reset_chip = qla4_83xx_isp_reset,
5677 .reset_firmware = qla4_8xxx_stop_firmware,
5678 .queue_iocb = qla4_83xx_queue_iocb,
5679 .complete_iocb = qla4_83xx_complete_iocb,
5680 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out,
5681 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in,
5682 .get_sys_info = qla4_8xxx_get_sys_info,
5683 .rd_reg_direct = qla4_83xx_rd_reg,
5684 .wr_reg_direct = qla4_83xx_wr_reg,
5685 .rd_reg_indirect = qla4_83xx_rd_reg_indirect,
5686 .wr_reg_indirect = qla4_83xx_wr_reg_indirect,
5687 .idc_lock = qla4_83xx_drv_lock,
5688 .idc_unlock = qla4_83xx_drv_unlock,
5689 .rom_lock_recovery = qla4_83xx_rom_lock_recovery,
5690 .queue_mailbox_command = qla4_83xx_queue_mbox_cmd,
5691 .process_mailbox_interrupt = qla4_83xx_process_mbox_intr,
5692 };
5693
5694 uint16_t qla4xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha)
5695 {
5696 return (uint16_t)le32_to_cpu(ha->shadow_regs->req_q_out);
5697 }
5698
5699 uint16_t qla4_82xx_rd_shdw_req_q_out(struct scsi_qla_host *ha)
5700 {
5701 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->req_q_out));
5702 }
5703
5704 uint16_t qla4xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha)
5705 {
5706 return (uint16_t)le32_to_cpu(ha->shadow_regs->rsp_q_in);
5707 }
5708
5709 uint16_t qla4_82xx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha)
5710 {
5711 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->rsp_q_in));
5712 }
5713
5714 static ssize_t qla4xxx_show_boot_eth_info(void *data, int type, char *buf)
5715 {
5716 struct scsi_qla_host *ha = data;
5717 char *str = buf;
5718 int rc;
5719
5720 switch (type) {
5721 case ISCSI_BOOT_ETH_FLAGS:
5722 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT);
5723 break;
5724 case ISCSI_BOOT_ETH_INDEX:
5725 rc = sprintf(str, "0\n");
5726 break;
5727 case ISCSI_BOOT_ETH_MAC:
5728 rc = sysfs_format_mac(str, ha->my_mac,
5729 MAC_ADDR_LEN);
5730 break;
5731 default:
5732 rc = -ENOSYS;
5733 break;
5734 }
5735 return rc;
5736 }
5737
5738 static umode_t qla4xxx_eth_get_attr_visibility(void *data, int type)
5739 {
5740 int rc;
5741
5742 switch (type) {
5743 case ISCSI_BOOT_ETH_FLAGS:
5744 case ISCSI_BOOT_ETH_MAC:
5745 case ISCSI_BOOT_ETH_INDEX:
5746 rc = S_IRUGO;
5747 break;
5748 default:
5749 rc = 0;
5750 break;
5751 }
5752 return rc;
5753 }
5754
5755 static ssize_t qla4xxx_show_boot_ini_info(void *data, int type, char *buf)
5756 {
5757 struct scsi_qla_host *ha = data;
5758 char *str = buf;
5759 int rc;
5760
5761 switch (type) {
5762 case ISCSI_BOOT_INI_INITIATOR_NAME:
5763 rc = sprintf(str, "%s\n", ha->name_string);
5764 break;
5765 default:
5766 rc = -ENOSYS;
5767 break;
5768 }
5769 return rc;
5770 }
5771
5772 static umode_t qla4xxx_ini_get_attr_visibility(void *data, int type)
5773 {
5774 int rc;
5775
5776 switch (type) {
5777 case ISCSI_BOOT_INI_INITIATOR_NAME:
5778 rc = S_IRUGO;
5779 break;
5780 default:
5781 rc = 0;
5782 break;
5783 }
5784 return rc;
5785 }
5786
5787 static ssize_t
5788 qla4xxx_show_boot_tgt_info(struct ql4_boot_session_info *boot_sess, int type,
5789 char *buf)
5790 {
5791 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0];
5792 char *str = buf;
5793 int rc;
5794
5795 switch (type) {
5796 case ISCSI_BOOT_TGT_NAME:
5797 rc = sprintf(buf, "%s\n", (char *)&boot_sess->target_name);
5798 break;
5799 case ISCSI_BOOT_TGT_IP_ADDR:
5800 if (boot_sess->conn_list[0].dest_ipaddr.ip_type == 0x1)
5801 rc = sprintf(buf, "%pI4\n",
5802 &boot_conn->dest_ipaddr.ip_address);
5803 else
5804 rc = sprintf(str, "%pI6\n",
5805 &boot_conn->dest_ipaddr.ip_address);
5806 break;
5807 case ISCSI_BOOT_TGT_PORT:
5808 rc = sprintf(str, "%d\n", boot_conn->dest_port);
5809 break;
5810 case ISCSI_BOOT_TGT_CHAP_NAME:
5811 rc = sprintf(str, "%.*s\n",
5812 boot_conn->chap.target_chap_name_length,
5813 (char *)&boot_conn->chap.target_chap_name);
5814 break;
5815 case ISCSI_BOOT_TGT_CHAP_SECRET:
5816 rc = sprintf(str, "%.*s\n",
5817 boot_conn->chap.target_secret_length,
5818 (char *)&boot_conn->chap.target_secret);
5819 break;
5820 case ISCSI_BOOT_TGT_REV_CHAP_NAME:
5821 rc = sprintf(str, "%.*s\n",
5822 boot_conn->chap.intr_chap_name_length,
5823 (char *)&boot_conn->chap.intr_chap_name);
5824 break;
5825 case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
5826 rc = sprintf(str, "%.*s\n",
5827 boot_conn->chap.intr_secret_length,
5828 (char *)&boot_conn->chap.intr_secret);
5829 break;
5830 case ISCSI_BOOT_TGT_FLAGS:
5831 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT);
5832 break;
5833 case ISCSI_BOOT_TGT_NIC_ASSOC:
5834 rc = sprintf(str, "0\n");
5835 break;
5836 default:
5837 rc = -ENOSYS;
5838 break;
5839 }
5840 return rc;
5841 }
5842
5843 static ssize_t qla4xxx_show_boot_tgt_pri_info(void *data, int type, char *buf)
5844 {
5845 struct scsi_qla_host *ha = data;
5846 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_pri_sess);
5847
5848 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf);
5849 }
5850
5851 static ssize_t qla4xxx_show_boot_tgt_sec_info(void *data, int type, char *buf)
5852 {
5853 struct scsi_qla_host *ha = data;
5854 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_sec_sess);
5855
5856 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf);
5857 }
5858
5859 static umode_t qla4xxx_tgt_get_attr_visibility(void *data, int type)
5860 {
5861 int rc;
5862
5863 switch (type) {
5864 case ISCSI_BOOT_TGT_NAME:
5865 case ISCSI_BOOT_TGT_IP_ADDR:
5866 case ISCSI_BOOT_TGT_PORT:
5867 case ISCSI_BOOT_TGT_CHAP_NAME:
5868 case ISCSI_BOOT_TGT_CHAP_SECRET:
5869 case ISCSI_BOOT_TGT_REV_CHAP_NAME:
5870 case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
5871 case ISCSI_BOOT_TGT_NIC_ASSOC:
5872 case ISCSI_BOOT_TGT_FLAGS:
5873 rc = S_IRUGO;
5874 break;
5875 default:
5876 rc = 0;
5877 break;
5878 }
5879 return rc;
5880 }
5881
5882 static void qla4xxx_boot_release(void *data)
5883 {
5884 struct scsi_qla_host *ha = data;
5885
5886 scsi_host_put(ha->host);
5887 }
5888
5889 static int get_fw_boot_info(struct scsi_qla_host *ha, uint16_t ddb_index[])
5890 {
5891 dma_addr_t buf_dma;
5892 uint32_t addr, pri_addr, sec_addr;
5893 uint32_t offset;
5894 uint16_t func_num;
5895 uint8_t val;
5896 uint8_t *buf = NULL;
5897 size_t size = 13 * sizeof(uint8_t);
5898 int ret = QLA_SUCCESS;
5899
5900 func_num = PCI_FUNC(ha->pdev->devfn);
5901
5902 ql4_printk(KERN_INFO, ha, "%s: Get FW boot info for 0x%x func %d\n",
5903 __func__, ha->pdev->device, func_num);
5904
5905 if (is_qla40XX(ha)) {
5906 if (func_num == 1) {
5907 addr = NVRAM_PORT0_BOOT_MODE;
5908 pri_addr = NVRAM_PORT0_BOOT_PRI_TGT;
5909 sec_addr = NVRAM_PORT0_BOOT_SEC_TGT;
5910 } else if (func_num == 3) {
5911 addr = NVRAM_PORT1_BOOT_MODE;
5912 pri_addr = NVRAM_PORT1_BOOT_PRI_TGT;
5913 sec_addr = NVRAM_PORT1_BOOT_SEC_TGT;
5914 } else {
5915 ret = QLA_ERROR;
5916 goto exit_boot_info;
5917 }
5918
5919 /* Check Boot Mode */
5920 val = rd_nvram_byte(ha, addr);
5921 if (!(val & 0x07)) {
5922 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Adapter boot "
5923 "options : 0x%x\n", __func__, val));
5924 ret = QLA_ERROR;
5925 goto exit_boot_info;
5926 }
5927
5928 /* get primary valid target index */
5929 val = rd_nvram_byte(ha, pri_addr);
5930 if (val & BIT_7)
5931 ddb_index[0] = (val & 0x7f);
5932
5933 /* get secondary valid target index */
5934 val = rd_nvram_byte(ha, sec_addr);
5935 if (val & BIT_7)
5936 ddb_index[1] = (val & 0x7f);
5937 goto exit_boot_info;
5938 } else if (is_qla80XX(ha)) {
5939 buf = dma_alloc_coherent(&ha->pdev->dev, size,
5940 &buf_dma, GFP_KERNEL);
5941 if (!buf) {
5942 DEBUG2(ql4_printk(KERN_ERR, ha,
5943 "%s: Unable to allocate dma buffer\n",
5944 __func__));
5945 ret = QLA_ERROR;
5946 goto exit_boot_info;
5947 }
5948
5949 if (ha->port_num == 0)
5950 offset = BOOT_PARAM_OFFSET_PORT0;
5951 else if (ha->port_num == 1)
5952 offset = BOOT_PARAM_OFFSET_PORT1;
5953 else {
5954 ret = QLA_ERROR;
5955 goto exit_boot_info_free;
5956 }
5957 addr = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_iscsi_param * 4) +
5958 offset;
5959 if (qla4xxx_get_flash(ha, buf_dma, addr,
5960 13 * sizeof(uint8_t)) != QLA_SUCCESS) {
5961 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: Get Flash"
5962 " failed\n", ha->host_no, __func__));
5963 ret = QLA_ERROR;
5964 goto exit_boot_info_free;
5965 }
5966 /* Check Boot Mode */
5967 if (!(buf[1] & 0x07)) {
5968 DEBUG2(ql4_printk(KERN_INFO, ha, "Firmware boot options"
5969 " : 0x%x\n", buf[1]));
5970 ret = QLA_ERROR;
5971 goto exit_boot_info_free;
5972 }
5973
5974 /* get primary valid target index */
5975 if (buf[2] & BIT_7)
5976 ddb_index[0] = buf[2] & 0x7f;
5977
5978 /* get secondary valid target index */
5979 if (buf[11] & BIT_7)
5980 ddb_index[1] = buf[11] & 0x7f;
5981 } else {
5982 ret = QLA_ERROR;
5983 goto exit_boot_info;
5984 }
5985
5986 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary target ID %d, Secondary"
5987 " target ID %d\n", __func__, ddb_index[0],
5988 ddb_index[1]));
5989
5990 exit_boot_info_free:
5991 dma_free_coherent(&ha->pdev->dev, size, buf, buf_dma);
5992 exit_boot_info:
5993 ha->pri_ddb_idx = ddb_index[0];
5994 ha->sec_ddb_idx = ddb_index[1];
5995 return ret;
5996 }
5997
5998 /**
5999 * qla4xxx_get_bidi_chap - Get a BIDI CHAP user and password
6000 * @ha: pointer to adapter structure
6001 * @username: CHAP username to be returned
6002 * @password: CHAP password to be returned
6003 *
6004 * If a boot entry has BIDI CHAP enabled then we need to set the BIDI CHAP
6005 * user and password in the sysfs entry in /sys/firmware/iscsi_boot#/.
6006 * So from the CHAP cache find the first BIDI CHAP entry and set it
6007 * to the boot record in sysfs.
6008 **/
6009 static int qla4xxx_get_bidi_chap(struct scsi_qla_host *ha, char *username,
6010 char *password)
6011 {
6012 int i, ret = -EINVAL;
6013 int max_chap_entries = 0;
6014 struct ql4_chap_table *chap_table;
6015
6016 if (is_qla80XX(ha))
6017 max_chap_entries = (ha->hw.flt_chap_size / 2) /
6018 sizeof(struct ql4_chap_table);
6019 else
6020 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
6021
6022 if (!ha->chap_list) {
6023 ql4_printk(KERN_ERR, ha, "Do not have CHAP table cache\n");
6024 return ret;
6025 }
6026
6027 mutex_lock(&ha->chap_sem);
6028 for (i = 0; i < max_chap_entries; i++) {
6029 chap_table = (struct ql4_chap_table *)ha->chap_list + i;
6030 if (chap_table->cookie !=
6031 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) {
6032 continue;
6033 }
6034
6035 if (chap_table->flags & BIT_7) /* local */
6036 continue;
6037
6038 if (!(chap_table->flags & BIT_6)) /* Not BIDI */
6039 continue;
6040
6041 strlcpy(password, chap_table->secret, QL4_CHAP_MAX_SECRET_LEN);
6042 strlcpy(username, chap_table->name, QL4_CHAP_MAX_NAME_LEN);
6043 ret = 0;
6044 break;
6045 }
6046 mutex_unlock(&ha->chap_sem);
6047
6048 return ret;
6049 }
6050
6051
6052 static int qla4xxx_get_boot_target(struct scsi_qla_host *ha,
6053 struct ql4_boot_session_info *boot_sess,
6054 uint16_t ddb_index)
6055 {
6056 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0];
6057 struct dev_db_entry *fw_ddb_entry;
6058 dma_addr_t fw_ddb_entry_dma;
6059 uint16_t idx;
6060 uint16_t options;
6061 int ret = QLA_SUCCESS;
6062
6063 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
6064 &fw_ddb_entry_dma, GFP_KERNEL);
6065 if (!fw_ddb_entry) {
6066 DEBUG2(ql4_printk(KERN_ERR, ha,
6067 "%s: Unable to allocate dma buffer.\n",
6068 __func__));
6069 ret = QLA_ERROR;
6070 return ret;
6071 }
6072
6073 if (qla4xxx_bootdb_by_index(ha, fw_ddb_entry,
6074 fw_ddb_entry_dma, ddb_index)) {
6075 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: No Flash DDB found at "
6076 "index [%d]\n", __func__, ddb_index));
6077 ret = QLA_ERROR;
6078 goto exit_boot_target;
6079 }
6080
6081 /* Update target name and IP from DDB */
6082 memcpy(boot_sess->target_name, fw_ddb_entry->iscsi_name,
6083 min(sizeof(boot_sess->target_name),
6084 sizeof(fw_ddb_entry->iscsi_name)));
6085
6086 options = le16_to_cpu(fw_ddb_entry->options);
6087 if (options & DDB_OPT_IPV6_DEVICE) {
6088 memcpy(&boot_conn->dest_ipaddr.ip_address,
6089 &fw_ddb_entry->ip_addr[0], IPv6_ADDR_LEN);
6090 } else {
6091 boot_conn->dest_ipaddr.ip_type = 0x1;
6092 memcpy(&boot_conn->dest_ipaddr.ip_address,
6093 &fw_ddb_entry->ip_addr[0], IP_ADDR_LEN);
6094 }
6095
6096 boot_conn->dest_port = le16_to_cpu(fw_ddb_entry->port);
6097
6098 /* update chap information */
6099 idx = __le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
6100
6101 if (BIT_7 & le16_to_cpu(fw_ddb_entry->iscsi_options)) {
6102
6103 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting chap\n"));
6104
6105 ret = qla4xxx_get_chap(ha, (char *)&boot_conn->chap.
6106 target_chap_name,
6107 (char *)&boot_conn->chap.target_secret,
6108 idx);
6109 if (ret) {
6110 ql4_printk(KERN_ERR, ha, "Failed to set chap\n");
6111 ret = QLA_ERROR;
6112 goto exit_boot_target;
6113 }
6114
6115 boot_conn->chap.target_chap_name_length = QL4_CHAP_MAX_NAME_LEN;
6116 boot_conn->chap.target_secret_length = QL4_CHAP_MAX_SECRET_LEN;
6117 }
6118
6119 if (BIT_4 & le16_to_cpu(fw_ddb_entry->iscsi_options)) {
6120
6121 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting BIDI chap\n"));
6122
6123 ret = qla4xxx_get_bidi_chap(ha,
6124 (char *)&boot_conn->chap.intr_chap_name,
6125 (char *)&boot_conn->chap.intr_secret);
6126
6127 if (ret) {
6128 ql4_printk(KERN_ERR, ha, "Failed to set BIDI chap\n");
6129 ret = QLA_ERROR;
6130 goto exit_boot_target;
6131 }
6132
6133 boot_conn->chap.intr_chap_name_length = QL4_CHAP_MAX_NAME_LEN;
6134 boot_conn->chap.intr_secret_length = QL4_CHAP_MAX_SECRET_LEN;
6135 }
6136
6137 exit_boot_target:
6138 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
6139 fw_ddb_entry, fw_ddb_entry_dma);
6140 return ret;
6141 }
6142
6143 static int qla4xxx_get_boot_info(struct scsi_qla_host *ha)
6144 {
6145 uint16_t ddb_index[2];
6146 int ret = QLA_ERROR;
6147 int rval;
6148
6149 memset(ddb_index, 0, sizeof(ddb_index));
6150 ddb_index[0] = 0xffff;
6151 ddb_index[1] = 0xffff;
6152 ret = get_fw_boot_info(ha, ddb_index);
6153 if (ret != QLA_SUCCESS) {
6154 DEBUG2(ql4_printk(KERN_INFO, ha,
6155 "%s: No boot target configured.\n", __func__));
6156 return ret;
6157 }
6158
6159 if (ql4xdisablesysfsboot)
6160 return QLA_SUCCESS;
6161
6162 if (ddb_index[0] == 0xffff)
6163 goto sec_target;
6164
6165 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_pri_sess),
6166 ddb_index[0]);
6167 if (rval != QLA_SUCCESS) {
6168 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary boot target not "
6169 "configured\n", __func__));
6170 } else
6171 ret = QLA_SUCCESS;
6172
6173 sec_target:
6174 if (ddb_index[1] == 0xffff)
6175 goto exit_get_boot_info;
6176
6177 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_sec_sess),
6178 ddb_index[1]);
6179 if (rval != QLA_SUCCESS) {
6180 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Secondary boot target not"
6181 " configured\n", __func__));
6182 } else
6183 ret = QLA_SUCCESS;
6184
6185 exit_get_boot_info:
6186 return ret;
6187 }
6188
6189 static int qla4xxx_setup_boot_info(struct scsi_qla_host *ha)
6190 {
6191 struct iscsi_boot_kobj *boot_kobj;
6192
6193 if (qla4xxx_get_boot_info(ha) != QLA_SUCCESS)
6194 return QLA_ERROR;
6195
6196 if (ql4xdisablesysfsboot) {
6197 ql4_printk(KERN_INFO, ha,
6198 "%s: syfsboot disabled - driver will trigger login "
6199 "and publish session for discovery .\n", __func__);
6200 return QLA_SUCCESS;
6201 }
6202
6203
6204 ha->boot_kset = iscsi_boot_create_host_kset(ha->host->host_no);
6205 if (!ha->boot_kset)
6206 goto kset_free;
6207
6208 if (!scsi_host_get(ha->host))
6209 goto kset_free;
6210 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 0, ha,
6211 qla4xxx_show_boot_tgt_pri_info,
6212 qla4xxx_tgt_get_attr_visibility,
6213 qla4xxx_boot_release);
6214 if (!boot_kobj)
6215 goto put_host;
6216
6217 if (!scsi_host_get(ha->host))
6218 goto kset_free;
6219 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 1, ha,
6220 qla4xxx_show_boot_tgt_sec_info,
6221 qla4xxx_tgt_get_attr_visibility,
6222 qla4xxx_boot_release);
6223 if (!boot_kobj)
6224 goto put_host;
6225
6226 if (!scsi_host_get(ha->host))
6227 goto kset_free;
6228 boot_kobj = iscsi_boot_create_initiator(ha->boot_kset, 0, ha,
6229 qla4xxx_show_boot_ini_info,
6230 qla4xxx_ini_get_attr_visibility,
6231 qla4xxx_boot_release);
6232 if (!boot_kobj)
6233 goto put_host;
6234
6235 if (!scsi_host_get(ha->host))
6236 goto kset_free;
6237 boot_kobj = iscsi_boot_create_ethernet(ha->boot_kset, 0, ha,
6238 qla4xxx_show_boot_eth_info,
6239 qla4xxx_eth_get_attr_visibility,
6240 qla4xxx_boot_release);
6241 if (!boot_kobj)
6242 goto put_host;
6243
6244 return QLA_SUCCESS;
6245
6246 put_host:
6247 scsi_host_put(ha->host);
6248 kset_free:
6249 iscsi_boot_destroy_kset(ha->boot_kset);
6250 return -ENOMEM;
6251 }
6252
6253
6254 static void qla4xxx_get_param_ddb(struct ddb_entry *ddb_entry,
6255 struct ql4_tuple_ddb *tddb)
6256 {
6257 struct scsi_qla_host *ha;
6258 struct iscsi_cls_session *cls_sess;
6259 struct iscsi_cls_conn *cls_conn;
6260 struct iscsi_session *sess;
6261 struct iscsi_conn *conn;
6262
6263 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
6264 ha = ddb_entry->ha;
6265 cls_sess = ddb_entry->sess;
6266 sess = cls_sess->dd_data;
6267 cls_conn = ddb_entry->conn;
6268 conn = cls_conn->dd_data;
6269
6270 tddb->tpgt = sess->tpgt;
6271 tddb->port = conn->persistent_port;
6272 strlcpy(tddb->iscsi_name, sess->targetname, ISCSI_NAME_SIZE);
6273 strlcpy(tddb->ip_addr, conn->persistent_address, DDB_IPADDR_LEN);
6274 }
6275
6276 static void qla4xxx_convert_param_ddb(struct dev_db_entry *fw_ddb_entry,
6277 struct ql4_tuple_ddb *tddb,
6278 uint8_t *flash_isid)
6279 {
6280 uint16_t options = 0;
6281
6282 tddb->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
6283 memcpy(&tddb->iscsi_name[0], &fw_ddb_entry->iscsi_name[0],
6284 min(sizeof(tddb->iscsi_name), sizeof(fw_ddb_entry->iscsi_name)));
6285
6286 options = le16_to_cpu(fw_ddb_entry->options);
6287 if (options & DDB_OPT_IPV6_DEVICE)
6288 sprintf(tddb->ip_addr, "%pI6", fw_ddb_entry->ip_addr);
6289 else
6290 sprintf(tddb->ip_addr, "%pI4", fw_ddb_entry->ip_addr);
6291
6292 tddb->port = le16_to_cpu(fw_ddb_entry->port);
6293
6294 if (flash_isid == NULL)
6295 memcpy(&tddb->isid[0], &fw_ddb_entry->isid[0],
6296 sizeof(tddb->isid));
6297 else
6298 memcpy(&tddb->isid[0], &flash_isid[0], sizeof(tddb->isid));
6299 }
6300
6301 static int qla4xxx_compare_tuple_ddb(struct scsi_qla_host *ha,
6302 struct ql4_tuple_ddb *old_tddb,
6303 struct ql4_tuple_ddb *new_tddb,
6304 uint8_t is_isid_compare)
6305 {
6306 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name))
6307 return QLA_ERROR;
6308
6309 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr))
6310 return QLA_ERROR;
6311
6312 if (old_tddb->port != new_tddb->port)
6313 return QLA_ERROR;
6314
6315 /* For multi sessions, driver generates the ISID, so do not compare
6316 * ISID in reset path since it would be a comparison between the
6317 * driver generated ISID and firmware generated ISID. This could
6318 * lead to adding duplicated DDBs in the list as driver generated
6319 * ISID would not match firmware generated ISID.
6320 */
6321 if (is_isid_compare) {
6322 DEBUG2(ql4_printk(KERN_INFO, ha,
6323 "%s: old ISID [%pmR] New ISID [%pmR]\n",
6324 __func__, old_tddb->isid, new_tddb->isid));
6325
6326 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0],
6327 sizeof(old_tddb->isid)))
6328 return QLA_ERROR;
6329 }
6330
6331 DEBUG2(ql4_printk(KERN_INFO, ha,
6332 "Match Found, fw[%d,%d,%s,%s], [%d,%d,%s,%s]",
6333 old_tddb->port, old_tddb->tpgt, old_tddb->ip_addr,
6334 old_tddb->iscsi_name, new_tddb->port, new_tddb->tpgt,
6335 new_tddb->ip_addr, new_tddb->iscsi_name));
6336
6337 return QLA_SUCCESS;
6338 }
6339
6340 static int qla4xxx_is_session_exists(struct scsi_qla_host *ha,
6341 struct dev_db_entry *fw_ddb_entry,
6342 uint32_t *index)
6343 {
6344 struct ddb_entry *ddb_entry;
6345 struct ql4_tuple_ddb *fw_tddb = NULL;
6346 struct ql4_tuple_ddb *tmp_tddb = NULL;
6347 int idx;
6348 int ret = QLA_ERROR;
6349
6350 fw_tddb = vzalloc(sizeof(*fw_tddb));
6351 if (!fw_tddb) {
6352 DEBUG2(ql4_printk(KERN_WARNING, ha,
6353 "Memory Allocation failed.\n"));
6354 ret = QLA_SUCCESS;
6355 goto exit_check;
6356 }
6357
6358 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
6359 if (!tmp_tddb) {
6360 DEBUG2(ql4_printk(KERN_WARNING, ha,
6361 "Memory Allocation failed.\n"));
6362 ret = QLA_SUCCESS;
6363 goto exit_check;
6364 }
6365
6366 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL);
6367
6368 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
6369 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
6370 if (ddb_entry == NULL)
6371 continue;
6372
6373 qla4xxx_get_param_ddb(ddb_entry, tmp_tddb);
6374 if (!qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, false)) {
6375 ret = QLA_SUCCESS; /* found */
6376 if (index != NULL)
6377 *index = idx;
6378 goto exit_check;
6379 }
6380 }
6381
6382 exit_check:
6383 if (fw_tddb)
6384 vfree(fw_tddb);
6385 if (tmp_tddb)
6386 vfree(tmp_tddb);
6387 return ret;
6388 }
6389
6390 /**
6391 * qla4xxx_check_existing_isid - check if target with same isid exist
6392 * in target list
6393 * @list_nt: list of target
6394 * @isid: isid to check
6395 *
6396 * This routine return QLA_SUCCESS if target with same isid exist
6397 **/
6398 static int qla4xxx_check_existing_isid(struct list_head *list_nt, uint8_t *isid)
6399 {
6400 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp;
6401 struct dev_db_entry *fw_ddb_entry;
6402
6403 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
6404 fw_ddb_entry = &nt_ddb_idx->fw_ddb;
6405
6406 if (memcmp(&fw_ddb_entry->isid[0], &isid[0],
6407 sizeof(nt_ddb_idx->fw_ddb.isid)) == 0) {
6408 return QLA_SUCCESS;
6409 }
6410 }
6411 return QLA_ERROR;
6412 }
6413
6414 /**
6415 * qla4xxx_update_isid - compare ddbs and updated isid
6416 * @ha: Pointer to host adapter structure.
6417 * @list_nt: list of nt target
6418 * @fw_ddb_entry: firmware ddb entry
6419 *
6420 * This routine update isid if ddbs have same iqn, same isid and
6421 * different IP addr.
6422 * Return QLA_SUCCESS if isid is updated.
6423 **/
6424 static int qla4xxx_update_isid(struct scsi_qla_host *ha,
6425 struct list_head *list_nt,
6426 struct dev_db_entry *fw_ddb_entry)
6427 {
6428 uint8_t base_value, i;
6429
6430 base_value = fw_ddb_entry->isid[1] & 0x1f;
6431 for (i = 0; i < 8; i++) {
6432 fw_ddb_entry->isid[1] = (base_value | (i << 5));
6433 if (qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid))
6434 break;
6435 }
6436
6437 if (!qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid))
6438 return QLA_ERROR;
6439
6440 return QLA_SUCCESS;
6441 }
6442
6443 /**
6444 * qla4xxx_should_update_isid - check if isid need to update
6445 * @ha: Pointer to host adapter structure.
6446 * @old_tddb: ddb tuple
6447 * @new_tddb: ddb tuple
6448 *
6449 * Return QLA_SUCCESS if different IP, different PORT, same iqn,
6450 * same isid
6451 **/
6452 static int qla4xxx_should_update_isid(struct scsi_qla_host *ha,
6453 struct ql4_tuple_ddb *old_tddb,
6454 struct ql4_tuple_ddb *new_tddb)
6455 {
6456 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr) == 0) {
6457 /* Same ip */
6458 if (old_tddb->port == new_tddb->port)
6459 return QLA_ERROR;
6460 }
6461
6462 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name))
6463 /* different iqn */
6464 return QLA_ERROR;
6465
6466 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0],
6467 sizeof(old_tddb->isid)))
6468 /* different isid */
6469 return QLA_ERROR;
6470
6471 return QLA_SUCCESS;
6472 }
6473
6474 /**
6475 * qla4xxx_is_flash_ddb_exists - check if fw_ddb_entry already exists in list_nt
6476 * @ha: Pointer to host adapter structure.
6477 * @list_nt: list of nt target.
6478 * @fw_ddb_entry: firmware ddb entry.
6479 *
6480 * This routine check if fw_ddb_entry already exists in list_nt to avoid
6481 * duplicate ddb in list_nt.
6482 * Return QLA_SUCCESS if duplicate ddb exit in list_nl.
6483 * Note: This function also update isid of DDB if required.
6484 **/
6485
6486 static int qla4xxx_is_flash_ddb_exists(struct scsi_qla_host *ha,
6487 struct list_head *list_nt,
6488 struct dev_db_entry *fw_ddb_entry)
6489 {
6490 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp;
6491 struct ql4_tuple_ddb *fw_tddb = NULL;
6492 struct ql4_tuple_ddb *tmp_tddb = NULL;
6493 int rval, ret = QLA_ERROR;
6494
6495 fw_tddb = vzalloc(sizeof(*fw_tddb));
6496 if (!fw_tddb) {
6497 DEBUG2(ql4_printk(KERN_WARNING, ha,
6498 "Memory Allocation failed.\n"));
6499 ret = QLA_SUCCESS;
6500 goto exit_check;
6501 }
6502
6503 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
6504 if (!tmp_tddb) {
6505 DEBUG2(ql4_printk(KERN_WARNING, ha,
6506 "Memory Allocation failed.\n"));
6507 ret = QLA_SUCCESS;
6508 goto exit_check;
6509 }
6510
6511 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL);
6512
6513 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
6514 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb,
6515 nt_ddb_idx->flash_isid);
6516 ret = qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, true);
6517 /* found duplicate ddb */
6518 if (ret == QLA_SUCCESS)
6519 goto exit_check;
6520 }
6521
6522 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
6523 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb, NULL);
6524
6525 ret = qla4xxx_should_update_isid(ha, tmp_tddb, fw_tddb);
6526 if (ret == QLA_SUCCESS) {
6527 rval = qla4xxx_update_isid(ha, list_nt, fw_ddb_entry);
6528 if (rval == QLA_SUCCESS)
6529 ret = QLA_ERROR;
6530 else
6531 ret = QLA_SUCCESS;
6532
6533 goto exit_check;
6534 }
6535 }
6536
6537 exit_check:
6538 if (fw_tddb)
6539 vfree(fw_tddb);
6540 if (tmp_tddb)
6541 vfree(tmp_tddb);
6542 return ret;
6543 }
6544
6545 static void qla4xxx_free_ddb_list(struct list_head *list_ddb)
6546 {
6547 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
6548
6549 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
6550 list_del_init(&ddb_idx->list);
6551 vfree(ddb_idx);
6552 }
6553 }
6554
6555 static struct iscsi_endpoint *qla4xxx_get_ep_fwdb(struct scsi_qla_host *ha,
6556 struct dev_db_entry *fw_ddb_entry)
6557 {
6558 struct iscsi_endpoint *ep;
6559 struct sockaddr_in *addr;
6560 struct sockaddr_in6 *addr6;
6561 struct sockaddr *t_addr;
6562 struct sockaddr_storage *dst_addr;
6563 char *ip;
6564
6565 /* TODO: need to destroy on unload iscsi_endpoint*/
6566 dst_addr = vmalloc(sizeof(*dst_addr));
6567 if (!dst_addr)
6568 return NULL;
6569
6570 if (fw_ddb_entry->options & DDB_OPT_IPV6_DEVICE) {
6571 t_addr = (struct sockaddr *)dst_addr;
6572 t_addr->sa_family = AF_INET6;
6573 addr6 = (struct sockaddr_in6 *)dst_addr;
6574 ip = (char *)&addr6->sin6_addr;
6575 memcpy(ip, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN);
6576 addr6->sin6_port = htons(le16_to_cpu(fw_ddb_entry->port));
6577
6578 } else {
6579 t_addr = (struct sockaddr *)dst_addr;
6580 t_addr->sa_family = AF_INET;
6581 addr = (struct sockaddr_in *)dst_addr;
6582 ip = (char *)&addr->sin_addr;
6583 memcpy(ip, fw_ddb_entry->ip_addr, IP_ADDR_LEN);
6584 addr->sin_port = htons(le16_to_cpu(fw_ddb_entry->port));
6585 }
6586
6587 ep = qla4xxx_ep_connect(ha->host, (struct sockaddr *)dst_addr, 0);
6588 vfree(dst_addr);
6589 return ep;
6590 }
6591
6592 static int qla4xxx_verify_boot_idx(struct scsi_qla_host *ha, uint16_t idx)
6593 {
6594 if (ql4xdisablesysfsboot)
6595 return QLA_SUCCESS;
6596 if (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx)
6597 return QLA_ERROR;
6598 return QLA_SUCCESS;
6599 }
6600
6601 static void qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha,
6602 struct ddb_entry *ddb_entry,
6603 uint16_t idx)
6604 {
6605 uint16_t def_timeout;
6606
6607 ddb_entry->ddb_type = FLASH_DDB;
6608 ddb_entry->fw_ddb_index = INVALID_ENTRY;
6609 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE;
6610 ddb_entry->ha = ha;
6611 ddb_entry->unblock_sess = qla4xxx_unblock_flash_ddb;
6612 ddb_entry->ddb_change = qla4xxx_flash_ddb_change;
6613 ddb_entry->chap_tbl_idx = INVALID_ENTRY;
6614
6615 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY);
6616 atomic_set(&ddb_entry->relogin_timer, 0);
6617 atomic_set(&ddb_entry->relogin_retry_count, 0);
6618 def_timeout = le16_to_cpu(ddb_entry->fw_ddb_entry.def_timeout);
6619 ddb_entry->default_relogin_timeout =
6620 (def_timeout > LOGIN_TOV) && (def_timeout < LOGIN_TOV * 10) ?
6621 def_timeout : LOGIN_TOV;
6622 ddb_entry->default_time2wait =
6623 le16_to_cpu(ddb_entry->fw_ddb_entry.iscsi_def_time2wait);
6624
6625 if (ql4xdisablesysfsboot &&
6626 (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx))
6627 set_bit(DF_BOOT_TGT, &ddb_entry->flags);
6628 }
6629
6630 static void qla4xxx_wait_for_ip_configuration(struct scsi_qla_host *ha)
6631 {
6632 uint32_t idx = 0;
6633 uint32_t ip_idx[IP_ADDR_COUNT] = {0, 1, 2, 3}; /* 4 IP interfaces */
6634 uint32_t sts[MBOX_REG_COUNT];
6635 uint32_t ip_state;
6636 unsigned long wtime;
6637 int ret;
6638
6639 wtime = jiffies + (HZ * IP_CONFIG_TOV);
6640 do {
6641 for (idx = 0; idx < IP_ADDR_COUNT; idx++) {
6642 if (ip_idx[idx] == -1)
6643 continue;
6644
6645 ret = qla4xxx_get_ip_state(ha, 0, ip_idx[idx], sts);
6646
6647 if (ret == QLA_ERROR) {
6648 ip_idx[idx] = -1;
6649 continue;
6650 }
6651
6652 ip_state = (sts[1] & IP_STATE_MASK) >> IP_STATE_SHIFT;
6653
6654 DEBUG2(ql4_printk(KERN_INFO, ha,
6655 "Waiting for IP state for idx = %d, state = 0x%x\n",
6656 ip_idx[idx], ip_state));
6657 if (ip_state == IP_ADDRSTATE_UNCONFIGURED ||
6658 ip_state == IP_ADDRSTATE_INVALID ||
6659 ip_state == IP_ADDRSTATE_PREFERRED ||
6660 ip_state == IP_ADDRSTATE_DEPRICATED ||
6661 ip_state == IP_ADDRSTATE_DISABLING)
6662 ip_idx[idx] = -1;
6663 }
6664
6665 /* Break if all IP states checked */
6666 if ((ip_idx[0] == -1) &&
6667 (ip_idx[1] == -1) &&
6668 (ip_idx[2] == -1) &&
6669 (ip_idx[3] == -1))
6670 break;
6671 schedule_timeout_uninterruptible(HZ);
6672 } while (time_after(wtime, jiffies));
6673 }
6674
6675 static int qla4xxx_cmp_fw_stentry(struct dev_db_entry *fw_ddb_entry,
6676 struct dev_db_entry *flash_ddb_entry)
6677 {
6678 uint16_t options = 0;
6679 size_t ip_len = IP_ADDR_LEN;
6680
6681 options = le16_to_cpu(fw_ddb_entry->options);
6682 if (options & DDB_OPT_IPV6_DEVICE)
6683 ip_len = IPv6_ADDR_LEN;
6684
6685 if (memcmp(fw_ddb_entry->ip_addr, flash_ddb_entry->ip_addr, ip_len))
6686 return QLA_ERROR;
6687
6688 if (memcmp(&fw_ddb_entry->isid[0], &flash_ddb_entry->isid[0],
6689 sizeof(fw_ddb_entry->isid)))
6690 return QLA_ERROR;
6691
6692 if (memcmp(&fw_ddb_entry->port, &flash_ddb_entry->port,
6693 sizeof(fw_ddb_entry->port)))
6694 return QLA_ERROR;
6695
6696 return QLA_SUCCESS;
6697 }
6698
6699 static int qla4xxx_find_flash_st_idx(struct scsi_qla_host *ha,
6700 struct dev_db_entry *fw_ddb_entry,
6701 uint32_t fw_idx, uint32_t *flash_index)
6702 {
6703 struct dev_db_entry *flash_ddb_entry;
6704 dma_addr_t flash_ddb_entry_dma;
6705 uint32_t idx = 0;
6706 int max_ddbs;
6707 int ret = QLA_ERROR, status;
6708
6709 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
6710 MAX_DEV_DB_ENTRIES;
6711
6712 flash_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
6713 &flash_ddb_entry_dma);
6714 if (flash_ddb_entry == NULL || fw_ddb_entry == NULL) {
6715 ql4_printk(KERN_ERR, ha, "Out of memory\n");
6716 goto exit_find_st_idx;
6717 }
6718
6719 status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry,
6720 flash_ddb_entry_dma, fw_idx);
6721 if (status == QLA_SUCCESS) {
6722 status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry);
6723 if (status == QLA_SUCCESS) {
6724 *flash_index = fw_idx;
6725 ret = QLA_SUCCESS;
6726 goto exit_find_st_idx;
6727 }
6728 }
6729
6730 for (idx = 0; idx < max_ddbs; idx++) {
6731 status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry,
6732 flash_ddb_entry_dma, idx);
6733 if (status == QLA_ERROR)
6734 continue;
6735
6736 status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry);
6737 if (status == QLA_SUCCESS) {
6738 *flash_index = idx;
6739 ret = QLA_SUCCESS;
6740 goto exit_find_st_idx;
6741 }
6742 }
6743
6744 if (idx == max_ddbs)
6745 ql4_printk(KERN_ERR, ha, "Failed to find ST [%d] in flash\n",
6746 fw_idx);
6747
6748 exit_find_st_idx:
6749 if (flash_ddb_entry)
6750 dma_pool_free(ha->fw_ddb_dma_pool, flash_ddb_entry,
6751 flash_ddb_entry_dma);
6752
6753 return ret;
6754 }
6755
6756 static void qla4xxx_build_st_list(struct scsi_qla_host *ha,
6757 struct list_head *list_st)
6758 {
6759 struct qla_ddb_index *st_ddb_idx;
6760 int max_ddbs;
6761 int fw_idx_size;
6762 struct dev_db_entry *fw_ddb_entry;
6763 dma_addr_t fw_ddb_dma;
6764 int ret;
6765 uint32_t idx = 0, next_idx = 0;
6766 uint32_t state = 0, conn_err = 0;
6767 uint32_t flash_index = -1;
6768 uint16_t conn_id = 0;
6769
6770 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
6771 &fw_ddb_dma);
6772 if (fw_ddb_entry == NULL) {
6773 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
6774 goto exit_st_list;
6775 }
6776
6777 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
6778 MAX_DEV_DB_ENTRIES;
6779 fw_idx_size = sizeof(struct qla_ddb_index);
6780
6781 for (idx = 0; idx < max_ddbs; idx = next_idx) {
6782 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
6783 NULL, &next_idx, &state,
6784 &conn_err, NULL, &conn_id);
6785 if (ret == QLA_ERROR)
6786 break;
6787
6788 /* Ignore DDB if invalid state (unassigned) */
6789 if (state == DDB_DS_UNASSIGNED)
6790 goto continue_next_st;
6791
6792 /* Check if ST, add to the list_st */
6793 if (strlen((char *) fw_ddb_entry->iscsi_name) != 0)
6794 goto continue_next_st;
6795
6796 st_ddb_idx = vzalloc(fw_idx_size);
6797 if (!st_ddb_idx)
6798 break;
6799
6800 ret = qla4xxx_find_flash_st_idx(ha, fw_ddb_entry, idx,
6801 &flash_index);
6802 if (ret == QLA_ERROR) {
6803 ql4_printk(KERN_ERR, ha,
6804 "No flash entry for ST at idx [%d]\n", idx);
6805 st_ddb_idx->flash_ddb_idx = idx;
6806 } else {
6807 ql4_printk(KERN_INFO, ha,
6808 "ST at idx [%d] is stored at flash [%d]\n",
6809 idx, flash_index);
6810 st_ddb_idx->flash_ddb_idx = flash_index;
6811 }
6812
6813 st_ddb_idx->fw_ddb_idx = idx;
6814
6815 list_add_tail(&st_ddb_idx->list, list_st);
6816 continue_next_st:
6817 if (next_idx == 0)
6818 break;
6819 }
6820
6821 exit_st_list:
6822 if (fw_ddb_entry)
6823 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
6824 }
6825
6826 /**
6827 * qla4xxx_remove_failed_ddb - Remove inactive or failed ddb from list
6828 * @ha: pointer to adapter structure
6829 * @list_ddb: List from which failed ddb to be removed
6830 *
6831 * Iterate over the list of DDBs and find and remove DDBs that are either in
6832 * no connection active state or failed state
6833 **/
6834 static void qla4xxx_remove_failed_ddb(struct scsi_qla_host *ha,
6835 struct list_head *list_ddb)
6836 {
6837 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
6838 uint32_t next_idx = 0;
6839 uint32_t state = 0, conn_err = 0;
6840 int ret;
6841
6842 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
6843 ret = qla4xxx_get_fwddb_entry(ha, ddb_idx->fw_ddb_idx,
6844 NULL, 0, NULL, &next_idx, &state,
6845 &conn_err, NULL, NULL);
6846 if (ret == QLA_ERROR)
6847 continue;
6848
6849 if (state == DDB_DS_NO_CONNECTION_ACTIVE ||
6850 state == DDB_DS_SESSION_FAILED) {
6851 list_del_init(&ddb_idx->list);
6852 vfree(ddb_idx);
6853 }
6854 }
6855 }
6856
6857 static void qla4xxx_update_sess_disc_idx(struct scsi_qla_host *ha,
6858 struct ddb_entry *ddb_entry,
6859 struct dev_db_entry *fw_ddb_entry)
6860 {
6861 struct iscsi_cls_session *cls_sess;
6862 struct iscsi_session *sess;
6863 uint32_t max_ddbs = 0;
6864 uint16_t ddb_link = -1;
6865
6866 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
6867 MAX_DEV_DB_ENTRIES;
6868
6869 cls_sess = ddb_entry->sess;
6870 sess = cls_sess->dd_data;
6871
6872 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
6873 if (ddb_link < max_ddbs)
6874 sess->discovery_parent_idx = ddb_link;
6875 else
6876 sess->discovery_parent_idx = DDB_NO_LINK;
6877 }
6878
6879 static int qla4xxx_sess_conn_setup(struct scsi_qla_host *ha,
6880 struct dev_db_entry *fw_ddb_entry,
6881 int is_reset, uint16_t idx)
6882 {
6883 struct iscsi_cls_session *cls_sess;
6884 struct iscsi_session *sess;
6885 struct iscsi_cls_conn *cls_conn;
6886 struct iscsi_endpoint *ep;
6887 uint16_t cmds_max = 32;
6888 uint16_t conn_id = 0;
6889 uint32_t initial_cmdsn = 0;
6890 int ret = QLA_SUCCESS;
6891
6892 struct ddb_entry *ddb_entry = NULL;
6893
6894 /* Create session object, with INVALID_ENTRY,
6895 * the targer_id would get set when we issue the login
6896 */
6897 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, ha->host,
6898 cmds_max, sizeof(struct ddb_entry),
6899 sizeof(struct ql4_task_data),
6900 initial_cmdsn, INVALID_ENTRY);
6901 if (!cls_sess) {
6902 ret = QLA_ERROR;
6903 goto exit_setup;
6904 }
6905
6906 /*
6907 * so calling module_put function to decrement the
6908 * reference count.
6909 **/
6910 module_put(qla4xxx_iscsi_transport.owner);
6911 sess = cls_sess->dd_data;
6912 ddb_entry = sess->dd_data;
6913 ddb_entry->sess = cls_sess;
6914
6915 cls_sess->recovery_tmo = ql4xsess_recovery_tmo;
6916 memcpy(&ddb_entry->fw_ddb_entry, fw_ddb_entry,
6917 sizeof(struct dev_db_entry));
6918
6919 qla4xxx_setup_flash_ddb_entry(ha, ddb_entry, idx);
6920
6921 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), conn_id);
6922
6923 if (!cls_conn) {
6924 ret = QLA_ERROR;
6925 goto exit_setup;
6926 }
6927
6928 ddb_entry->conn = cls_conn;
6929
6930 /* Setup ep, for displaying attributes in sysfs */
6931 ep = qla4xxx_get_ep_fwdb(ha, fw_ddb_entry);
6932 if (ep) {
6933 ep->conn = cls_conn;
6934 cls_conn->ep = ep;
6935 } else {
6936 DEBUG2(ql4_printk(KERN_ERR, ha, "Unable to get ep\n"));
6937 ret = QLA_ERROR;
6938 goto exit_setup;
6939 }
6940
6941 /* Update sess/conn params */
6942 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn);
6943 qla4xxx_update_sess_disc_idx(ha, ddb_entry, fw_ddb_entry);
6944
6945 if (is_reset == RESET_ADAPTER) {
6946 iscsi_block_session(cls_sess);
6947 /* Use the relogin path to discover new devices
6948 * by short-circuting the logic of setting
6949 * timer to relogin - instead set the flags
6950 * to initiate login right away.
6951 */
6952 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
6953 set_bit(DF_RELOGIN, &ddb_entry->flags);
6954 }
6955
6956 exit_setup:
6957 return ret;
6958 }
6959
6960 static void qla4xxx_update_fw_ddb_link(struct scsi_qla_host *ha,
6961 struct list_head *list_ddb,
6962 struct dev_db_entry *fw_ddb_entry)
6963 {
6964 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
6965 uint16_t ddb_link;
6966
6967 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
6968
6969 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
6970 if (ddb_idx->fw_ddb_idx == ddb_link) {
6971 DEBUG2(ql4_printk(KERN_INFO, ha,
6972 "Updating NT parent idx from [%d] to [%d]\n",
6973 ddb_link, ddb_idx->flash_ddb_idx));
6974 fw_ddb_entry->ddb_link =
6975 cpu_to_le16(ddb_idx->flash_ddb_idx);
6976 return;
6977 }
6978 }
6979 }
6980
6981 static void qla4xxx_build_nt_list(struct scsi_qla_host *ha,
6982 struct list_head *list_nt,
6983 struct list_head *list_st,
6984 int is_reset)
6985 {
6986 struct dev_db_entry *fw_ddb_entry;
6987 struct ddb_entry *ddb_entry = NULL;
6988 dma_addr_t fw_ddb_dma;
6989 int max_ddbs;
6990 int fw_idx_size;
6991 int ret;
6992 uint32_t idx = 0, next_idx = 0;
6993 uint32_t state = 0, conn_err = 0;
6994 uint32_t ddb_idx = -1;
6995 uint16_t conn_id = 0;
6996 uint16_t ddb_link = -1;
6997 struct qla_ddb_index *nt_ddb_idx;
6998
6999 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
7000 &fw_ddb_dma);
7001 if (fw_ddb_entry == NULL) {
7002 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
7003 goto exit_nt_list;
7004 }
7005 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
7006 MAX_DEV_DB_ENTRIES;
7007 fw_idx_size = sizeof(struct qla_ddb_index);
7008
7009 for (idx = 0; idx < max_ddbs; idx = next_idx) {
7010 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
7011 NULL, &next_idx, &state,
7012 &conn_err, NULL, &conn_id);
7013 if (ret == QLA_ERROR)
7014 break;
7015
7016 if (qla4xxx_verify_boot_idx(ha, idx) != QLA_SUCCESS)
7017 goto continue_next_nt;
7018
7019 /* Check if NT, then add to list it */
7020 if (strlen((char *) fw_ddb_entry->iscsi_name) == 0)
7021 goto continue_next_nt;
7022
7023 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
7024 if (ddb_link < max_ddbs)
7025 qla4xxx_update_fw_ddb_link(ha, list_st, fw_ddb_entry);
7026
7027 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE ||
7028 state == DDB_DS_SESSION_FAILED) &&
7029 (is_reset == INIT_ADAPTER))
7030 goto continue_next_nt;
7031
7032 DEBUG2(ql4_printk(KERN_INFO, ha,
7033 "Adding DDB to session = 0x%x\n", idx));
7034
7035 if (is_reset == INIT_ADAPTER) {
7036 nt_ddb_idx = vmalloc(fw_idx_size);
7037 if (!nt_ddb_idx)
7038 break;
7039
7040 nt_ddb_idx->fw_ddb_idx = idx;
7041
7042 /* Copy original isid as it may get updated in function
7043 * qla4xxx_update_isid(). We need original isid in
7044 * function qla4xxx_compare_tuple_ddb to find duplicate
7045 * target */
7046 memcpy(&nt_ddb_idx->flash_isid[0],
7047 &fw_ddb_entry->isid[0],
7048 sizeof(nt_ddb_idx->flash_isid));
7049
7050 ret = qla4xxx_is_flash_ddb_exists(ha, list_nt,
7051 fw_ddb_entry);
7052 if (ret == QLA_SUCCESS) {
7053 /* free nt_ddb_idx and do not add to list_nt */
7054 vfree(nt_ddb_idx);
7055 goto continue_next_nt;
7056 }
7057
7058 /* Copy updated isid */
7059 memcpy(&nt_ddb_idx->fw_ddb, fw_ddb_entry,
7060 sizeof(struct dev_db_entry));
7061
7062 list_add_tail(&nt_ddb_idx->list, list_nt);
7063 } else if (is_reset == RESET_ADAPTER) {
7064 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry,
7065 &ddb_idx);
7066 if (ret == QLA_SUCCESS) {
7067 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha,
7068 ddb_idx);
7069 if (ddb_entry != NULL)
7070 qla4xxx_update_sess_disc_idx(ha,
7071 ddb_entry,
7072 fw_ddb_entry);
7073 goto continue_next_nt;
7074 }
7075 }
7076
7077 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, is_reset, idx);
7078 if (ret == QLA_ERROR)
7079 goto exit_nt_list;
7080
7081 continue_next_nt:
7082 if (next_idx == 0)
7083 break;
7084 }
7085
7086 exit_nt_list:
7087 if (fw_ddb_entry)
7088 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
7089 }
7090
7091 static void qla4xxx_build_new_nt_list(struct scsi_qla_host *ha,
7092 struct list_head *list_nt,
7093 uint16_t target_id)
7094 {
7095 struct dev_db_entry *fw_ddb_entry;
7096 dma_addr_t fw_ddb_dma;
7097 int max_ddbs;
7098 int fw_idx_size;
7099 int ret;
7100 uint32_t idx = 0, next_idx = 0;
7101 uint32_t state = 0, conn_err = 0;
7102 uint16_t conn_id = 0;
7103 struct qla_ddb_index *nt_ddb_idx;
7104
7105 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
7106 &fw_ddb_dma);
7107 if (fw_ddb_entry == NULL) {
7108 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
7109 goto exit_new_nt_list;
7110 }
7111 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
7112 MAX_DEV_DB_ENTRIES;
7113 fw_idx_size = sizeof(struct qla_ddb_index);
7114
7115 for (idx = 0; idx < max_ddbs; idx = next_idx) {
7116 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
7117 NULL, &next_idx, &state,
7118 &conn_err, NULL, &conn_id);
7119 if (ret == QLA_ERROR)
7120 break;
7121
7122 /* Check if NT, then add it to list */
7123 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0)
7124 goto continue_next_new_nt;
7125
7126 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE))
7127 goto continue_next_new_nt;
7128
7129 DEBUG2(ql4_printk(KERN_INFO, ha,
7130 "Adding DDB to session = 0x%x\n", idx));
7131
7132 nt_ddb_idx = vmalloc(fw_idx_size);
7133 if (!nt_ddb_idx)
7134 break;
7135
7136 nt_ddb_idx->fw_ddb_idx = idx;
7137
7138 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL);
7139 if (ret == QLA_SUCCESS) {
7140 /* free nt_ddb_idx and do not add to list_nt */
7141 vfree(nt_ddb_idx);
7142 goto continue_next_new_nt;
7143 }
7144
7145 if (target_id < max_ddbs)
7146 fw_ddb_entry->ddb_link = cpu_to_le16(target_id);
7147
7148 list_add_tail(&nt_ddb_idx->list, list_nt);
7149
7150 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER,
7151 idx);
7152 if (ret == QLA_ERROR)
7153 goto exit_new_nt_list;
7154
7155 continue_next_new_nt:
7156 if (next_idx == 0)
7157 break;
7158 }
7159
7160 exit_new_nt_list:
7161 if (fw_ddb_entry)
7162 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
7163 }
7164
7165 /**
7166 * qla4xxx_sysfs_ddb_is_non_persistent - check for non-persistence of ddb entry
7167 * @dev: dev associated with the sysfs entry
7168 * @data: pointer to flashnode session object
7169 *
7170 * Returns:
7171 * 1: if flashnode entry is non-persistent
7172 * 0: if flashnode entry is persistent
7173 **/
7174 static int qla4xxx_sysfs_ddb_is_non_persistent(struct device *dev, void *data)
7175 {
7176 struct iscsi_bus_flash_session *fnode_sess;
7177
7178 if (!iscsi_flashnode_bus_match(dev, NULL))
7179 return 0;
7180
7181 fnode_sess = iscsi_dev_to_flash_session(dev);
7182
7183 return (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT);
7184 }
7185
7186 /**
7187 * qla4xxx_sysfs_ddb_tgt_create - Create sysfs entry for target
7188 * @ha: pointer to host
7189 * @fw_ddb_entry: flash ddb data
7190 * @idx: target index
7191 * @user: if set then this call is made from userland else from kernel
7192 *
7193 * Returns:
7194 * On sucess: QLA_SUCCESS
7195 * On failure: QLA_ERROR
7196 *
7197 * This create separate sysfs entries for session and connection attributes of
7198 * the given fw ddb entry.
7199 * If this is invoked as a result of a userspace call then the entry is marked
7200 * as nonpersistent using flash_state field.
7201 **/
7202 static int qla4xxx_sysfs_ddb_tgt_create(struct scsi_qla_host *ha,
7203 struct dev_db_entry *fw_ddb_entry,
7204 uint16_t *idx, int user)
7205 {
7206 struct iscsi_bus_flash_session *fnode_sess = NULL;
7207 struct iscsi_bus_flash_conn *fnode_conn = NULL;
7208 int rc = QLA_ERROR;
7209
7210 fnode_sess = iscsi_create_flashnode_sess(ha->host, *idx,
7211 &qla4xxx_iscsi_transport, 0);
7212 if (!fnode_sess) {
7213 ql4_printk(KERN_ERR, ha,
7214 "%s: Unable to create session sysfs entry for flashnode %d of host%lu\n",
7215 __func__, *idx, ha->host_no);
7216 goto exit_tgt_create;
7217 }
7218
7219 fnode_conn = iscsi_create_flashnode_conn(ha->host, fnode_sess,
7220 &qla4xxx_iscsi_transport, 0);
7221 if (!fnode_conn) {
7222 ql4_printk(KERN_ERR, ha,
7223 "%s: Unable to create conn sysfs entry for flashnode %d of host%lu\n",
7224 __func__, *idx, ha->host_no);
7225 goto free_sess;
7226 }
7227
7228 if (user) {
7229 fnode_sess->flash_state = DEV_DB_NON_PERSISTENT;
7230 } else {
7231 fnode_sess->flash_state = DEV_DB_PERSISTENT;
7232
7233 if (*idx == ha->pri_ddb_idx || *idx == ha->sec_ddb_idx)
7234 fnode_sess->is_boot_target = 1;
7235 else
7236 fnode_sess->is_boot_target = 0;
7237 }
7238
7239 rc = qla4xxx_copy_from_fwddb_param(fnode_sess, fnode_conn,
7240 fw_ddb_entry);
7241 if (rc)
7242 goto free_sess;
7243
7244 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n",
7245 __func__, fnode_sess->dev.kobj.name);
7246
7247 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n",
7248 __func__, fnode_conn->dev.kobj.name);
7249
7250 return QLA_SUCCESS;
7251
7252 free_sess:
7253 iscsi_destroy_flashnode_sess(fnode_sess);
7254
7255 exit_tgt_create:
7256 return QLA_ERROR;
7257 }
7258
7259 /**
7260 * qla4xxx_sysfs_ddb_add - Add new ddb entry in flash
7261 * @shost: pointer to host
7262 * @buf: type of ddb entry (ipv4/ipv6)
7263 * @len: length of buf
7264 *
7265 * This creates new ddb entry in the flash by finding first free index and
7266 * storing default ddb there. And then create sysfs entry for the new ddb entry.
7267 **/
7268 static int qla4xxx_sysfs_ddb_add(struct Scsi_Host *shost, const char *buf,
7269 int len)
7270 {
7271 struct scsi_qla_host *ha = to_qla_host(shost);
7272 struct dev_db_entry *fw_ddb_entry = NULL;
7273 dma_addr_t fw_ddb_entry_dma;
7274 struct device *dev;
7275 uint16_t idx = 0;
7276 uint16_t max_ddbs = 0;
7277 uint32_t options = 0;
7278 uint32_t rval = QLA_ERROR;
7279
7280 if (strncasecmp(PORTAL_TYPE_IPV4, buf, 4) &&
7281 strncasecmp(PORTAL_TYPE_IPV6, buf, 4)) {
7282 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Invalid portal type\n",
7283 __func__));
7284 goto exit_ddb_add;
7285 }
7286
7287 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES :
7288 MAX_DEV_DB_ENTRIES;
7289
7290 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7291 &fw_ddb_entry_dma, GFP_KERNEL);
7292 if (!fw_ddb_entry) {
7293 DEBUG2(ql4_printk(KERN_ERR, ha,
7294 "%s: Unable to allocate dma buffer\n",
7295 __func__));
7296 goto exit_ddb_add;
7297 }
7298
7299 dev = iscsi_find_flashnode_sess(ha->host, NULL,
7300 qla4xxx_sysfs_ddb_is_non_persistent);
7301 if (dev) {
7302 ql4_printk(KERN_ERR, ha,
7303 "%s: A non-persistent entry %s found\n",
7304 __func__, dev->kobj.name);
7305 put_device(dev);
7306 goto exit_ddb_add;
7307 }
7308
7309 /* Index 0 and 1 are reserved for boot target entries */
7310 for (idx = 2; idx < max_ddbs; idx++) {
7311 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry,
7312 fw_ddb_entry_dma, idx))
7313 break;
7314 }
7315
7316 if (idx == max_ddbs)
7317 goto exit_ddb_add;
7318
7319 if (!strncasecmp("ipv6", buf, 4))
7320 options |= IPV6_DEFAULT_DDB_ENTRY;
7321
7322 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
7323 if (rval == QLA_ERROR)
7324 goto exit_ddb_add;
7325
7326 rval = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 1);
7327
7328 exit_ddb_add:
7329 if (fw_ddb_entry)
7330 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7331 fw_ddb_entry, fw_ddb_entry_dma);
7332 if (rval == QLA_SUCCESS)
7333 return idx;
7334 else
7335 return -EIO;
7336 }
7337
7338 /**
7339 * qla4xxx_sysfs_ddb_apply - write the target ddb contents to Flash
7340 * @fnode_sess: pointer to session attrs of flash ddb entry
7341 * @fnode_conn: pointer to connection attrs of flash ddb entry
7342 *
7343 * This writes the contents of target ddb buffer to Flash with a valid cookie
7344 * value in order to make the ddb entry persistent.
7345 **/
7346 static int qla4xxx_sysfs_ddb_apply(struct iscsi_bus_flash_session *fnode_sess,
7347 struct iscsi_bus_flash_conn *fnode_conn)
7348 {
7349 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7350 struct scsi_qla_host *ha = to_qla_host(shost);
7351 uint32_t dev_db_start_offset = FLASH_OFFSET_DB_INFO;
7352 struct dev_db_entry *fw_ddb_entry = NULL;
7353 dma_addr_t fw_ddb_entry_dma;
7354 uint32_t options = 0;
7355 int rval = 0;
7356
7357 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7358 &fw_ddb_entry_dma, GFP_KERNEL);
7359 if (!fw_ddb_entry) {
7360 DEBUG2(ql4_printk(KERN_ERR, ha,
7361 "%s: Unable to allocate dma buffer\n",
7362 __func__));
7363 rval = -ENOMEM;
7364 goto exit_ddb_apply;
7365 }
7366
7367 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7368 options |= IPV6_DEFAULT_DDB_ENTRY;
7369
7370 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
7371 if (rval == QLA_ERROR)
7372 goto exit_ddb_apply;
7373
7374 dev_db_start_offset += (fnode_sess->target_id *
7375 sizeof(*fw_ddb_entry));
7376
7377 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry);
7378 fw_ddb_entry->cookie = DDB_VALID_COOKIE;
7379
7380 rval = qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset,
7381 sizeof(*fw_ddb_entry), FLASH_OPT_RMW_COMMIT);
7382
7383 if (rval == QLA_SUCCESS) {
7384 fnode_sess->flash_state = DEV_DB_PERSISTENT;
7385 ql4_printk(KERN_INFO, ha,
7386 "%s: flash node %u of host %lu written to flash\n",
7387 __func__, fnode_sess->target_id, ha->host_no);
7388 } else {
7389 rval = -EIO;
7390 ql4_printk(KERN_ERR, ha,
7391 "%s: Error while writing flash node %u of host %lu to flash\n",
7392 __func__, fnode_sess->target_id, ha->host_no);
7393 }
7394
7395 exit_ddb_apply:
7396 if (fw_ddb_entry)
7397 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7398 fw_ddb_entry, fw_ddb_entry_dma);
7399 return rval;
7400 }
7401
7402 static ssize_t qla4xxx_sysfs_ddb_conn_open(struct scsi_qla_host *ha,
7403 struct dev_db_entry *fw_ddb_entry,
7404 uint16_t idx)
7405 {
7406 struct dev_db_entry *ddb_entry = NULL;
7407 dma_addr_t ddb_entry_dma;
7408 unsigned long wtime;
7409 uint32_t mbx_sts = 0;
7410 uint32_t state = 0, conn_err = 0;
7411 uint16_t tmo = 0;
7412 int ret = 0;
7413
7414 ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*ddb_entry),
7415 &ddb_entry_dma, GFP_KERNEL);
7416 if (!ddb_entry) {
7417 DEBUG2(ql4_printk(KERN_ERR, ha,
7418 "%s: Unable to allocate dma buffer\n",
7419 __func__));
7420 return QLA_ERROR;
7421 }
7422
7423 memcpy(ddb_entry, fw_ddb_entry, sizeof(*ddb_entry));
7424
7425 ret = qla4xxx_set_ddb_entry(ha, idx, ddb_entry_dma, &mbx_sts);
7426 if (ret != QLA_SUCCESS) {
7427 DEBUG2(ql4_printk(KERN_ERR, ha,
7428 "%s: Unable to set ddb entry for index %d\n",
7429 __func__, idx));
7430 goto exit_ddb_conn_open;
7431 }
7432
7433 qla4xxx_conn_open(ha, idx);
7434
7435 /* To ensure that sendtargets is done, wait for at least 12 secs */
7436 tmo = ((ha->def_timeout > LOGIN_TOV) &&
7437 (ha->def_timeout < LOGIN_TOV * 10) ?
7438 ha->def_timeout : LOGIN_TOV);
7439
7440 DEBUG2(ql4_printk(KERN_INFO, ha,
7441 "Default time to wait for login to ddb %d\n", tmo));
7442
7443 wtime = jiffies + (HZ * tmo);
7444 do {
7445 ret = qla4xxx_get_fwddb_entry(ha, idx, NULL, 0, NULL,
7446 NULL, &state, &conn_err, NULL,
7447 NULL);
7448 if (ret == QLA_ERROR)
7449 continue;
7450
7451 if (state == DDB_DS_NO_CONNECTION_ACTIVE ||
7452 state == DDB_DS_SESSION_FAILED)
7453 break;
7454
7455 schedule_timeout_uninterruptible(HZ / 10);
7456 } while (time_after(wtime, jiffies));
7457
7458 exit_ddb_conn_open:
7459 if (ddb_entry)
7460 dma_free_coherent(&ha->pdev->dev, sizeof(*ddb_entry),
7461 ddb_entry, ddb_entry_dma);
7462 return ret;
7463 }
7464
7465 static int qla4xxx_ddb_login_st(struct scsi_qla_host *ha,
7466 struct dev_db_entry *fw_ddb_entry,
7467 uint16_t target_id)
7468 {
7469 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
7470 struct list_head list_nt;
7471 uint16_t ddb_index;
7472 int ret = 0;
7473
7474 if (test_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags)) {
7475 ql4_printk(KERN_WARNING, ha,
7476 "%s: A discovery already in progress!\n", __func__);
7477 return QLA_ERROR;
7478 }
7479
7480 INIT_LIST_HEAD(&list_nt);
7481
7482 set_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags);
7483
7484 ret = qla4xxx_get_ddb_index(ha, &ddb_index);
7485 if (ret == QLA_ERROR)
7486 goto exit_login_st_clr_bit;
7487
7488 ret = qla4xxx_sysfs_ddb_conn_open(ha, fw_ddb_entry, ddb_index);
7489 if (ret == QLA_ERROR)
7490 goto exit_login_st;
7491
7492 qla4xxx_build_new_nt_list(ha, &list_nt, target_id);
7493
7494 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, &list_nt, list) {
7495 list_del_init(&ddb_idx->list);
7496 qla4xxx_clear_ddb_entry(ha, ddb_idx->fw_ddb_idx);
7497 vfree(ddb_idx);
7498 }
7499
7500 exit_login_st:
7501 if (qla4xxx_clear_ddb_entry(ha, ddb_index) == QLA_ERROR) {
7502 ql4_printk(KERN_ERR, ha,
7503 "Unable to clear DDB index = 0x%x\n", ddb_index);
7504 }
7505
7506 clear_bit(ddb_index, ha->ddb_idx_map);
7507
7508 exit_login_st_clr_bit:
7509 clear_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags);
7510 return ret;
7511 }
7512
7513 static int qla4xxx_ddb_login_nt(struct scsi_qla_host *ha,
7514 struct dev_db_entry *fw_ddb_entry,
7515 uint16_t idx)
7516 {
7517 int ret = QLA_ERROR;
7518
7519 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL);
7520 if (ret != QLA_SUCCESS)
7521 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER,
7522 idx);
7523 else
7524 ret = -EPERM;
7525
7526 return ret;
7527 }
7528
7529 /**
7530 * qla4xxx_sysfs_ddb_login - Login to the specified target
7531 * @fnode_sess: pointer to session attrs of flash ddb entry
7532 * @fnode_conn: pointer to connection attrs of flash ddb entry
7533 *
7534 * This logs in to the specified target
7535 **/
7536 static int qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess,
7537 struct iscsi_bus_flash_conn *fnode_conn)
7538 {
7539 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7540 struct scsi_qla_host *ha = to_qla_host(shost);
7541 struct dev_db_entry *fw_ddb_entry = NULL;
7542 dma_addr_t fw_ddb_entry_dma;
7543 uint32_t options = 0;
7544 int ret = 0;
7545
7546 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT) {
7547 ql4_printk(KERN_ERR, ha,
7548 "%s: Target info is not persistent\n", __func__);
7549 ret = -EIO;
7550 goto exit_ddb_login;
7551 }
7552
7553 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7554 &fw_ddb_entry_dma, GFP_KERNEL);
7555 if (!fw_ddb_entry) {
7556 DEBUG2(ql4_printk(KERN_ERR, ha,
7557 "%s: Unable to allocate dma buffer\n",
7558 __func__));
7559 ret = -ENOMEM;
7560 goto exit_ddb_login;
7561 }
7562
7563 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7564 options |= IPV6_DEFAULT_DDB_ENTRY;
7565
7566 ret = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
7567 if (ret == QLA_ERROR)
7568 goto exit_ddb_login;
7569
7570 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry);
7571 fw_ddb_entry->cookie = DDB_VALID_COOKIE;
7572
7573 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0)
7574 ret = qla4xxx_ddb_login_st(ha, fw_ddb_entry,
7575 fnode_sess->target_id);
7576 else
7577 ret = qla4xxx_ddb_login_nt(ha, fw_ddb_entry,
7578 fnode_sess->target_id);
7579
7580 if (ret > 0)
7581 ret = -EIO;
7582
7583 exit_ddb_login:
7584 if (fw_ddb_entry)
7585 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7586 fw_ddb_entry, fw_ddb_entry_dma);
7587 return ret;
7588 }
7589
7590 /**
7591 * qla4xxx_sysfs_ddb_logout_sid - Logout session for the specified target
7592 * @cls_sess: pointer to session to be logged out
7593 *
7594 * This performs session log out from the specified target
7595 **/
7596 static int qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess)
7597 {
7598 struct iscsi_session *sess;
7599 struct ddb_entry *ddb_entry = NULL;
7600 struct scsi_qla_host *ha;
7601 struct dev_db_entry *fw_ddb_entry = NULL;
7602 dma_addr_t fw_ddb_entry_dma;
7603 unsigned long flags;
7604 unsigned long wtime;
7605 uint32_t ddb_state;
7606 int options;
7607 int ret = 0;
7608
7609 sess = cls_sess->dd_data;
7610 ddb_entry = sess->dd_data;
7611 ha = ddb_entry->ha;
7612
7613 if (ddb_entry->ddb_type != FLASH_DDB) {
7614 ql4_printk(KERN_ERR, ha, "%s: Not a flash node session\n",
7615 __func__);
7616 ret = -ENXIO;
7617 goto exit_ddb_logout;
7618 }
7619
7620 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) {
7621 ql4_printk(KERN_ERR, ha,
7622 "%s: Logout from boot target entry is not permitted.\n",
7623 __func__);
7624 ret = -EPERM;
7625 goto exit_ddb_logout;
7626 }
7627
7628 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7629 &fw_ddb_entry_dma, GFP_KERNEL);
7630 if (!fw_ddb_entry) {
7631 ql4_printk(KERN_ERR, ha,
7632 "%s: Unable to allocate dma buffer\n", __func__);
7633 ret = -ENOMEM;
7634 goto exit_ddb_logout;
7635 }
7636
7637 if (test_and_set_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags))
7638 goto ddb_logout_init;
7639
7640 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
7641 fw_ddb_entry, fw_ddb_entry_dma,
7642 NULL, NULL, &ddb_state, NULL,
7643 NULL, NULL);
7644 if (ret == QLA_ERROR)
7645 goto ddb_logout_init;
7646
7647 if (ddb_state == DDB_DS_SESSION_ACTIVE)
7648 goto ddb_logout_init;
7649
7650 /* wait until next relogin is triggered using DF_RELOGIN and
7651 * clear DF_RELOGIN to avoid invocation of further relogin
7652 */
7653 wtime = jiffies + (HZ * RELOGIN_TOV);
7654 do {
7655 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags))
7656 goto ddb_logout_init;
7657
7658 schedule_timeout_uninterruptible(HZ);
7659 } while ((time_after(wtime, jiffies)));
7660
7661 ddb_logout_init:
7662 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY);
7663 atomic_set(&ddb_entry->relogin_timer, 0);
7664
7665 options = LOGOUT_OPTION_CLOSE_SESSION;
7666 qla4xxx_session_logout_ddb(ha, ddb_entry, options);
7667
7668 memset(fw_ddb_entry, 0, sizeof(*fw_ddb_entry));
7669 wtime = jiffies + (HZ * LOGOUT_TOV);
7670 do {
7671 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
7672 fw_ddb_entry, fw_ddb_entry_dma,
7673 NULL, NULL, &ddb_state, NULL,
7674 NULL, NULL);
7675 if (ret == QLA_ERROR)
7676 goto ddb_logout_clr_sess;
7677
7678 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) ||
7679 (ddb_state == DDB_DS_SESSION_FAILED))
7680 goto ddb_logout_clr_sess;
7681
7682 schedule_timeout_uninterruptible(HZ);
7683 } while ((time_after(wtime, jiffies)));
7684
7685 ddb_logout_clr_sess:
7686 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
7687 /*
7688 * we have decremented the reference count of the driver
7689 * when we setup the session to have the driver unload
7690 * to be seamless without actually destroying the
7691 * session
7692 **/
7693 try_module_get(qla4xxx_iscsi_transport.owner);
7694 iscsi_destroy_endpoint(ddb_entry->conn->ep);
7695
7696 spin_lock_irqsave(&ha->hardware_lock, flags);
7697 qla4xxx_free_ddb(ha, ddb_entry);
7698 clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map);
7699 spin_unlock_irqrestore(&ha->hardware_lock, flags);
7700
7701 iscsi_session_teardown(ddb_entry->sess);
7702
7703 clear_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags);
7704 ret = QLA_SUCCESS;
7705
7706 exit_ddb_logout:
7707 if (fw_ddb_entry)
7708 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7709 fw_ddb_entry, fw_ddb_entry_dma);
7710 return ret;
7711 }
7712
7713 /**
7714 * qla4xxx_sysfs_ddb_logout - Logout from the specified target
7715 * @fnode_sess: pointer to session attrs of flash ddb entry
7716 * @fnode_conn: pointer to connection attrs of flash ddb entry
7717 *
7718 * This performs log out from the specified target
7719 **/
7720 static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess,
7721 struct iscsi_bus_flash_conn *fnode_conn)
7722 {
7723 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7724 struct scsi_qla_host *ha = to_qla_host(shost);
7725 struct ql4_tuple_ddb *flash_tddb = NULL;
7726 struct ql4_tuple_ddb *tmp_tddb = NULL;
7727 struct dev_db_entry *fw_ddb_entry = NULL;
7728 struct ddb_entry *ddb_entry = NULL;
7729 dma_addr_t fw_ddb_dma;
7730 uint32_t next_idx = 0;
7731 uint32_t state = 0, conn_err = 0;
7732 uint16_t conn_id = 0;
7733 int idx, index;
7734 int status, ret = 0;
7735
7736 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
7737 &fw_ddb_dma);
7738 if (fw_ddb_entry == NULL) {
7739 ql4_printk(KERN_ERR, ha, "%s:Out of memory\n", __func__);
7740 ret = -ENOMEM;
7741 goto exit_ddb_logout;
7742 }
7743
7744 flash_tddb = vzalloc(sizeof(*flash_tddb));
7745 if (!flash_tddb) {
7746 ql4_printk(KERN_WARNING, ha,
7747 "%s:Memory Allocation failed.\n", __func__);
7748 ret = -ENOMEM;
7749 goto exit_ddb_logout;
7750 }
7751
7752 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
7753 if (!tmp_tddb) {
7754 ql4_printk(KERN_WARNING, ha,
7755 "%s:Memory Allocation failed.\n", __func__);
7756 ret = -ENOMEM;
7757 goto exit_ddb_logout;
7758 }
7759
7760 if (!fnode_sess->targetname) {
7761 ql4_printk(KERN_ERR, ha,
7762 "%s:Cannot logout from SendTarget entry\n",
7763 __func__);
7764 ret = -EPERM;
7765 goto exit_ddb_logout;
7766 }
7767
7768 if (fnode_sess->is_boot_target) {
7769 ql4_printk(KERN_ERR, ha,
7770 "%s: Logout from boot target entry is not permitted.\n",
7771 __func__);
7772 ret = -EPERM;
7773 goto exit_ddb_logout;
7774 }
7775
7776 strlcpy(flash_tddb->iscsi_name, fnode_sess->targetname,
7777 ISCSI_NAME_SIZE);
7778
7779 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7780 sprintf(flash_tddb->ip_addr, "%pI6", fnode_conn->ipaddress);
7781 else
7782 sprintf(flash_tddb->ip_addr, "%pI4", fnode_conn->ipaddress);
7783
7784 flash_tddb->tpgt = fnode_sess->tpgt;
7785 flash_tddb->port = fnode_conn->port;
7786
7787 COPY_ISID(flash_tddb->isid, fnode_sess->isid);
7788
7789 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
7790 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
7791 if (ddb_entry == NULL)
7792 continue;
7793
7794 if (ddb_entry->ddb_type != FLASH_DDB)
7795 continue;
7796
7797 index = ddb_entry->sess->target_id;
7798 status = qla4xxx_get_fwddb_entry(ha, index, fw_ddb_entry,
7799 fw_ddb_dma, NULL, &next_idx,
7800 &state, &conn_err, NULL,
7801 &conn_id);
7802 if (status == QLA_ERROR) {
7803 ret = -ENOMEM;
7804 break;
7805 }
7806
7807 qla4xxx_convert_param_ddb(fw_ddb_entry, tmp_tddb, NULL);
7808
7809 status = qla4xxx_compare_tuple_ddb(ha, flash_tddb, tmp_tddb,
7810 true);
7811 if (status == QLA_SUCCESS) {
7812 ret = qla4xxx_sysfs_ddb_logout_sid(ddb_entry->sess);
7813 break;
7814 }
7815 }
7816
7817 if (idx == MAX_DDB_ENTRIES)
7818 ret = -ESRCH;
7819
7820 exit_ddb_logout:
7821 if (flash_tddb)
7822 vfree(flash_tddb);
7823 if (tmp_tddb)
7824 vfree(tmp_tddb);
7825 if (fw_ddb_entry)
7826 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
7827
7828 return ret;
7829 }
7830
7831 static int
7832 qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session *fnode_sess,
7833 int param, char *buf)
7834 {
7835 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7836 struct scsi_qla_host *ha = to_qla_host(shost);
7837 struct iscsi_bus_flash_conn *fnode_conn;
7838 struct ql4_chap_table chap_tbl;
7839 struct device *dev;
7840 int parent_type;
7841 int rc = 0;
7842
7843 dev = iscsi_find_flashnode_conn(fnode_sess);
7844 if (!dev)
7845 return -EIO;
7846
7847 fnode_conn = iscsi_dev_to_flash_conn(dev);
7848
7849 switch (param) {
7850 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6:
7851 rc = sprintf(buf, "%u\n", fnode_conn->is_fw_assigned_ipv6);
7852 break;
7853 case ISCSI_FLASHNODE_PORTAL_TYPE:
7854 rc = sprintf(buf, "%s\n", fnode_sess->portal_type);
7855 break;
7856 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE:
7857 rc = sprintf(buf, "%u\n", fnode_sess->auto_snd_tgt_disable);
7858 break;
7859 case ISCSI_FLASHNODE_DISCOVERY_SESS:
7860 rc = sprintf(buf, "%u\n", fnode_sess->discovery_sess);
7861 break;
7862 case ISCSI_FLASHNODE_ENTRY_EN:
7863 rc = sprintf(buf, "%u\n", fnode_sess->entry_state);
7864 break;
7865 case ISCSI_FLASHNODE_HDR_DGST_EN:
7866 rc = sprintf(buf, "%u\n", fnode_conn->hdrdgst_en);
7867 break;
7868 case ISCSI_FLASHNODE_DATA_DGST_EN:
7869 rc = sprintf(buf, "%u\n", fnode_conn->datadgst_en);
7870 break;
7871 case ISCSI_FLASHNODE_IMM_DATA_EN:
7872 rc = sprintf(buf, "%u\n", fnode_sess->imm_data_en);
7873 break;
7874 case ISCSI_FLASHNODE_INITIAL_R2T_EN:
7875 rc = sprintf(buf, "%u\n", fnode_sess->initial_r2t_en);
7876 break;
7877 case ISCSI_FLASHNODE_DATASEQ_INORDER:
7878 rc = sprintf(buf, "%u\n", fnode_sess->dataseq_inorder_en);
7879 break;
7880 case ISCSI_FLASHNODE_PDU_INORDER:
7881 rc = sprintf(buf, "%u\n", fnode_sess->pdu_inorder_en);
7882 break;
7883 case ISCSI_FLASHNODE_CHAP_AUTH_EN:
7884 rc = sprintf(buf, "%u\n", fnode_sess->chap_auth_en);
7885 break;
7886 case ISCSI_FLASHNODE_SNACK_REQ_EN:
7887 rc = sprintf(buf, "%u\n", fnode_conn->snack_req_en);
7888 break;
7889 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN:
7890 rc = sprintf(buf, "%u\n", fnode_sess->discovery_logout_en);
7891 break;
7892 case ISCSI_FLASHNODE_BIDI_CHAP_EN:
7893 rc = sprintf(buf, "%u\n", fnode_sess->bidi_chap_en);
7894 break;
7895 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL:
7896 rc = sprintf(buf, "%u\n", fnode_sess->discovery_auth_optional);
7897 break;
7898 case ISCSI_FLASHNODE_ERL:
7899 rc = sprintf(buf, "%u\n", fnode_sess->erl);
7900 break;
7901 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT:
7902 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_stat);
7903 break;
7904 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE:
7905 rc = sprintf(buf, "%u\n", fnode_conn->tcp_nagle_disable);
7906 break;
7907 case ISCSI_FLASHNODE_TCP_WSF_DISABLE:
7908 rc = sprintf(buf, "%u\n", fnode_conn->tcp_wsf_disable);
7909 break;
7910 case ISCSI_FLASHNODE_TCP_TIMER_SCALE:
7911 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timer_scale);
7912 break;
7913 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN:
7914 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_en);
7915 break;
7916 case ISCSI_FLASHNODE_IP_FRAG_DISABLE:
7917 rc = sprintf(buf, "%u\n", fnode_conn->fragment_disable);
7918 break;
7919 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH:
7920 rc = sprintf(buf, "%u\n", fnode_conn->max_recv_dlength);
7921 break;
7922 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH:
7923 rc = sprintf(buf, "%u\n", fnode_conn->max_xmit_dlength);
7924 break;
7925 case ISCSI_FLASHNODE_FIRST_BURST:
7926 rc = sprintf(buf, "%u\n", fnode_sess->first_burst);
7927 break;
7928 case ISCSI_FLASHNODE_DEF_TIME2WAIT:
7929 rc = sprintf(buf, "%u\n", fnode_sess->time2wait);
7930 break;
7931 case ISCSI_FLASHNODE_DEF_TIME2RETAIN:
7932 rc = sprintf(buf, "%u\n", fnode_sess->time2retain);
7933 break;
7934 case ISCSI_FLASHNODE_MAX_R2T:
7935 rc = sprintf(buf, "%u\n", fnode_sess->max_r2t);
7936 break;
7937 case ISCSI_FLASHNODE_KEEPALIVE_TMO:
7938 rc = sprintf(buf, "%u\n", fnode_conn->keepalive_timeout);
7939 break;
7940 case ISCSI_FLASHNODE_ISID:
7941 rc = sprintf(buf, "%pm\n", fnode_sess->isid);
7942 break;
7943 case ISCSI_FLASHNODE_TSID:
7944 rc = sprintf(buf, "%u\n", fnode_sess->tsid);
7945 break;
7946 case ISCSI_FLASHNODE_PORT:
7947 rc = sprintf(buf, "%d\n", fnode_conn->port);
7948 break;
7949 case ISCSI_FLASHNODE_MAX_BURST:
7950 rc = sprintf(buf, "%u\n", fnode_sess->max_burst);
7951 break;
7952 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO:
7953 rc = sprintf(buf, "%u\n",
7954 fnode_sess->default_taskmgmt_timeout);
7955 break;
7956 case ISCSI_FLASHNODE_IPADDR:
7957 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7958 rc = sprintf(buf, "%pI6\n", fnode_conn->ipaddress);
7959 else
7960 rc = sprintf(buf, "%pI4\n", fnode_conn->ipaddress);
7961 break;
7962 case ISCSI_FLASHNODE_ALIAS:
7963 if (fnode_sess->targetalias)
7964 rc = sprintf(buf, "%s\n", fnode_sess->targetalias);
7965 else
7966 rc = sprintf(buf, "\n");
7967 break;
7968 case ISCSI_FLASHNODE_REDIRECT_IPADDR:
7969 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7970 rc = sprintf(buf, "%pI6\n",
7971 fnode_conn->redirect_ipaddr);
7972 else
7973 rc = sprintf(buf, "%pI4\n",
7974 fnode_conn->redirect_ipaddr);
7975 break;
7976 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE:
7977 rc = sprintf(buf, "%u\n", fnode_conn->max_segment_size);
7978 break;
7979 case ISCSI_FLASHNODE_LOCAL_PORT:
7980 rc = sprintf(buf, "%u\n", fnode_conn->local_port);
7981 break;
7982 case ISCSI_FLASHNODE_IPV4_TOS:
7983 rc = sprintf(buf, "%u\n", fnode_conn->ipv4_tos);
7984 break;
7985 case ISCSI_FLASHNODE_IPV6_TC:
7986 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7987 rc = sprintf(buf, "%u\n",
7988 fnode_conn->ipv6_traffic_class);
7989 else
7990 rc = sprintf(buf, "\n");
7991 break;
7992 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL:
7993 rc = sprintf(buf, "%u\n", fnode_conn->ipv6_flow_label);
7994 break;
7995 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6:
7996 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
7997 rc = sprintf(buf, "%pI6\n",
7998 fnode_conn->link_local_ipv6_addr);
7999 else
8000 rc = sprintf(buf, "\n");
8001 break;
8002 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX:
8003 rc = sprintf(buf, "%u\n", fnode_sess->discovery_parent_idx);
8004 break;
8005 case ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE:
8006 if (fnode_sess->discovery_parent_type == DDB_ISNS)
8007 parent_type = ISCSI_DISC_PARENT_ISNS;
8008 else if (fnode_sess->discovery_parent_type == DDB_NO_LINK)
8009 parent_type = ISCSI_DISC_PARENT_UNKNOWN;
8010 else if (fnode_sess->discovery_parent_type < MAX_DDB_ENTRIES)
8011 parent_type = ISCSI_DISC_PARENT_SENDTGT;
8012 else
8013 parent_type = ISCSI_DISC_PARENT_UNKNOWN;
8014
8015 rc = sprintf(buf, "%s\n",
8016 iscsi_get_discovery_parent_name(parent_type));
8017 break;
8018 case ISCSI_FLASHNODE_NAME:
8019 if (fnode_sess->targetname)
8020 rc = sprintf(buf, "%s\n", fnode_sess->targetname);
8021 else
8022 rc = sprintf(buf, "\n");
8023 break;
8024 case ISCSI_FLASHNODE_TPGT:
8025 rc = sprintf(buf, "%u\n", fnode_sess->tpgt);
8026 break;
8027 case ISCSI_FLASHNODE_TCP_XMIT_WSF:
8028 rc = sprintf(buf, "%u\n", fnode_conn->tcp_xmit_wsf);
8029 break;
8030 case ISCSI_FLASHNODE_TCP_RECV_WSF:
8031 rc = sprintf(buf, "%u\n", fnode_conn->tcp_recv_wsf);
8032 break;
8033 case ISCSI_FLASHNODE_CHAP_OUT_IDX:
8034 rc = sprintf(buf, "%u\n", fnode_sess->chap_out_idx);
8035 break;
8036 case ISCSI_FLASHNODE_USERNAME:
8037 if (fnode_sess->chap_auth_en) {
8038 qla4xxx_get_uni_chap_at_index(ha,
8039 chap_tbl.name,
8040 chap_tbl.secret,
8041 fnode_sess->chap_out_idx);
8042 rc = sprintf(buf, "%s\n", chap_tbl.name);
8043 } else {
8044 rc = sprintf(buf, "\n");
8045 }
8046 break;
8047 case ISCSI_FLASHNODE_PASSWORD:
8048 if (fnode_sess->chap_auth_en) {
8049 qla4xxx_get_uni_chap_at_index(ha,
8050 chap_tbl.name,
8051 chap_tbl.secret,
8052 fnode_sess->chap_out_idx);
8053 rc = sprintf(buf, "%s\n", chap_tbl.secret);
8054 } else {
8055 rc = sprintf(buf, "\n");
8056 }
8057 break;
8058 case ISCSI_FLASHNODE_STATSN:
8059 rc = sprintf(buf, "%u\n", fnode_conn->statsn);
8060 break;
8061 case ISCSI_FLASHNODE_EXP_STATSN:
8062 rc = sprintf(buf, "%u\n", fnode_conn->exp_statsn);
8063 break;
8064 case ISCSI_FLASHNODE_IS_BOOT_TGT:
8065 rc = sprintf(buf, "%u\n", fnode_sess->is_boot_target);
8066 break;
8067 default:
8068 rc = -ENOSYS;
8069 break;
8070 }
8071
8072 put_device(dev);
8073 return rc;
8074 }
8075
8076 /**
8077 * qla4xxx_sysfs_ddb_set_param - Set parameter for firmware DDB entry
8078 * @fnode_sess: pointer to session attrs of flash ddb entry
8079 * @fnode_conn: pointer to connection attrs of flash ddb entry
8080 * @data: Parameters and their values to update
8081 * @len: len of data
8082 *
8083 * This sets the parameter of flash ddb entry and writes them to flash
8084 **/
8085 static int
8086 qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess,
8087 struct iscsi_bus_flash_conn *fnode_conn,
8088 void *data, int len)
8089 {
8090 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
8091 struct scsi_qla_host *ha = to_qla_host(shost);
8092 struct iscsi_flashnode_param_info *fnode_param;
8093 struct ql4_chap_table chap_tbl;
8094 struct nlattr *attr;
8095 uint16_t chap_out_idx = INVALID_ENTRY;
8096 int rc = QLA_ERROR;
8097 uint32_t rem = len;
8098
8099 memset((void *)&chap_tbl, 0, sizeof(chap_tbl));
8100 nla_for_each_attr(attr, data, len, rem) {
8101 fnode_param = nla_data(attr);
8102
8103 switch (fnode_param->param) {
8104 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6:
8105 fnode_conn->is_fw_assigned_ipv6 = fnode_param->value[0];
8106 break;
8107 case ISCSI_FLASHNODE_PORTAL_TYPE:
8108 memcpy(fnode_sess->portal_type, fnode_param->value,
8109 strlen(fnode_sess->portal_type));
8110 break;
8111 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE:
8112 fnode_sess->auto_snd_tgt_disable =
8113 fnode_param->value[0];
8114 break;
8115 case ISCSI_FLASHNODE_DISCOVERY_SESS:
8116 fnode_sess->discovery_sess = fnode_param->value[0];
8117 break;
8118 case ISCSI_FLASHNODE_ENTRY_EN:
8119 fnode_sess->entry_state = fnode_param->value[0];
8120 break;
8121 case ISCSI_FLASHNODE_HDR_DGST_EN:
8122 fnode_conn->hdrdgst_en = fnode_param->value[0];
8123 break;
8124 case ISCSI_FLASHNODE_DATA_DGST_EN:
8125 fnode_conn->datadgst_en = fnode_param->value[0];
8126 break;
8127 case ISCSI_FLASHNODE_IMM_DATA_EN:
8128 fnode_sess->imm_data_en = fnode_param->value[0];
8129 break;
8130 case ISCSI_FLASHNODE_INITIAL_R2T_EN:
8131 fnode_sess->initial_r2t_en = fnode_param->value[0];
8132 break;
8133 case ISCSI_FLASHNODE_DATASEQ_INORDER:
8134 fnode_sess->dataseq_inorder_en = fnode_param->value[0];
8135 break;
8136 case ISCSI_FLASHNODE_PDU_INORDER:
8137 fnode_sess->pdu_inorder_en = fnode_param->value[0];
8138 break;
8139 case ISCSI_FLASHNODE_CHAP_AUTH_EN:
8140 fnode_sess->chap_auth_en = fnode_param->value[0];
8141 /* Invalidate chap index if chap auth is disabled */
8142 if (!fnode_sess->chap_auth_en)
8143 fnode_sess->chap_out_idx = INVALID_ENTRY;
8144
8145 break;
8146 case ISCSI_FLASHNODE_SNACK_REQ_EN:
8147 fnode_conn->snack_req_en = fnode_param->value[0];
8148 break;
8149 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN:
8150 fnode_sess->discovery_logout_en = fnode_param->value[0];
8151 break;
8152 case ISCSI_FLASHNODE_BIDI_CHAP_EN:
8153 fnode_sess->bidi_chap_en = fnode_param->value[0];
8154 break;
8155 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL:
8156 fnode_sess->discovery_auth_optional =
8157 fnode_param->value[0];
8158 break;
8159 case ISCSI_FLASHNODE_ERL:
8160 fnode_sess->erl = fnode_param->value[0];
8161 break;
8162 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT:
8163 fnode_conn->tcp_timestamp_stat = fnode_param->value[0];
8164 break;
8165 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE:
8166 fnode_conn->tcp_nagle_disable = fnode_param->value[0];
8167 break;
8168 case ISCSI_FLASHNODE_TCP_WSF_DISABLE:
8169 fnode_conn->tcp_wsf_disable = fnode_param->value[0];
8170 break;
8171 case ISCSI_FLASHNODE_TCP_TIMER_SCALE:
8172 fnode_conn->tcp_timer_scale = fnode_param->value[0];
8173 break;
8174 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN:
8175 fnode_conn->tcp_timestamp_en = fnode_param->value[0];
8176 break;
8177 case ISCSI_FLASHNODE_IP_FRAG_DISABLE:
8178 fnode_conn->fragment_disable = fnode_param->value[0];
8179 break;
8180 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH:
8181 fnode_conn->max_recv_dlength =
8182 *(unsigned *)fnode_param->value;
8183 break;
8184 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH:
8185 fnode_conn->max_xmit_dlength =
8186 *(unsigned *)fnode_param->value;
8187 break;
8188 case ISCSI_FLASHNODE_FIRST_BURST:
8189 fnode_sess->first_burst =
8190 *(unsigned *)fnode_param->value;
8191 break;
8192 case ISCSI_FLASHNODE_DEF_TIME2WAIT:
8193 fnode_sess->time2wait = *(uint16_t *)fnode_param->value;
8194 break;
8195 case ISCSI_FLASHNODE_DEF_TIME2RETAIN:
8196 fnode_sess->time2retain =
8197 *(uint16_t *)fnode_param->value;
8198 break;
8199 case ISCSI_FLASHNODE_MAX_R2T:
8200 fnode_sess->max_r2t =
8201 *(uint16_t *)fnode_param->value;
8202 break;
8203 case ISCSI_FLASHNODE_KEEPALIVE_TMO:
8204 fnode_conn->keepalive_timeout =
8205 *(uint16_t *)fnode_param->value;
8206 break;
8207 case ISCSI_FLASHNODE_ISID:
8208 memcpy(fnode_sess->isid, fnode_param->value,
8209 sizeof(fnode_sess->isid));
8210 break;
8211 case ISCSI_FLASHNODE_TSID:
8212 fnode_sess->tsid = *(uint16_t *)fnode_param->value;
8213 break;
8214 case ISCSI_FLASHNODE_PORT:
8215 fnode_conn->port = *(uint16_t *)fnode_param->value;
8216 break;
8217 case ISCSI_FLASHNODE_MAX_BURST:
8218 fnode_sess->max_burst = *(unsigned *)fnode_param->value;
8219 break;
8220 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO:
8221 fnode_sess->default_taskmgmt_timeout =
8222 *(uint16_t *)fnode_param->value;
8223 break;
8224 case ISCSI_FLASHNODE_IPADDR:
8225 memcpy(fnode_conn->ipaddress, fnode_param->value,
8226 IPv6_ADDR_LEN);
8227 break;
8228 case ISCSI_FLASHNODE_ALIAS:
8229 rc = iscsi_switch_str_param(&fnode_sess->targetalias,
8230 (char *)fnode_param->value);
8231 break;
8232 case ISCSI_FLASHNODE_REDIRECT_IPADDR:
8233 memcpy(fnode_conn->redirect_ipaddr, fnode_param->value,
8234 IPv6_ADDR_LEN);
8235 break;
8236 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE:
8237 fnode_conn->max_segment_size =
8238 *(unsigned *)fnode_param->value;
8239 break;
8240 case ISCSI_FLASHNODE_LOCAL_PORT:
8241 fnode_conn->local_port =
8242 *(uint16_t *)fnode_param->value;
8243 break;
8244 case ISCSI_FLASHNODE_IPV4_TOS:
8245 fnode_conn->ipv4_tos = fnode_param->value[0];
8246 break;
8247 case ISCSI_FLASHNODE_IPV6_TC:
8248 fnode_conn->ipv6_traffic_class = fnode_param->value[0];
8249 break;
8250 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL:
8251 fnode_conn->ipv6_flow_label = fnode_param->value[0];
8252 break;
8253 case ISCSI_FLASHNODE_NAME:
8254 rc = iscsi_switch_str_param(&fnode_sess->targetname,
8255 (char *)fnode_param->value);
8256 break;
8257 case ISCSI_FLASHNODE_TPGT:
8258 fnode_sess->tpgt = *(uint16_t *)fnode_param->value;
8259 break;
8260 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6:
8261 memcpy(fnode_conn->link_local_ipv6_addr,
8262 fnode_param->value, IPv6_ADDR_LEN);
8263 break;
8264 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX:
8265 fnode_sess->discovery_parent_idx =
8266 *(uint16_t *)fnode_param->value;
8267 break;
8268 case ISCSI_FLASHNODE_TCP_XMIT_WSF:
8269 fnode_conn->tcp_xmit_wsf =
8270 *(uint8_t *)fnode_param->value;
8271 break;
8272 case ISCSI_FLASHNODE_TCP_RECV_WSF:
8273 fnode_conn->tcp_recv_wsf =
8274 *(uint8_t *)fnode_param->value;
8275 break;
8276 case ISCSI_FLASHNODE_STATSN:
8277 fnode_conn->statsn = *(uint32_t *)fnode_param->value;
8278 break;
8279 case ISCSI_FLASHNODE_EXP_STATSN:
8280 fnode_conn->exp_statsn =
8281 *(uint32_t *)fnode_param->value;
8282 break;
8283 case ISCSI_FLASHNODE_CHAP_OUT_IDX:
8284 chap_out_idx = *(uint16_t *)fnode_param->value;
8285 if (!qla4xxx_get_uni_chap_at_index(ha,
8286 chap_tbl.name,
8287 chap_tbl.secret,
8288 chap_out_idx)) {
8289 fnode_sess->chap_out_idx = chap_out_idx;
8290 /* Enable chap auth if chap index is valid */
8291 fnode_sess->chap_auth_en = QL4_PARAM_ENABLE;
8292 }
8293 break;
8294 default:
8295 ql4_printk(KERN_ERR, ha,
8296 "%s: No such sysfs attribute\n", __func__);
8297 rc = -ENOSYS;
8298 goto exit_set_param;
8299 }
8300 }
8301
8302 rc = qla4xxx_sysfs_ddb_apply(fnode_sess, fnode_conn);
8303
8304 exit_set_param:
8305 return rc;
8306 }
8307
8308 /**
8309 * qla4xxx_sysfs_ddb_delete - Delete firmware DDB entry
8310 * @fnode_sess: pointer to session attrs of flash ddb entry
8311 *
8312 * This invalidates the flash ddb entry at the given index
8313 **/
8314 static int qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess)
8315 {
8316 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
8317 struct scsi_qla_host *ha = to_qla_host(shost);
8318 uint32_t dev_db_start_offset;
8319 uint32_t dev_db_end_offset;
8320 struct dev_db_entry *fw_ddb_entry = NULL;
8321 dma_addr_t fw_ddb_entry_dma;
8322 uint16_t *ddb_cookie = NULL;
8323 size_t ddb_size = 0;
8324 void *pddb = NULL;
8325 int target_id;
8326 int rc = 0;
8327
8328 if (fnode_sess->is_boot_target) {
8329 rc = -EPERM;
8330 DEBUG2(ql4_printk(KERN_ERR, ha,
8331 "%s: Deletion of boot target entry is not permitted.\n",
8332 __func__));
8333 goto exit_ddb_del;
8334 }
8335
8336 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT)
8337 goto sysfs_ddb_del;
8338
8339 if (is_qla40XX(ha)) {
8340 dev_db_start_offset = FLASH_OFFSET_DB_INFO;
8341 dev_db_end_offset = FLASH_OFFSET_DB_END;
8342 dev_db_start_offset += (fnode_sess->target_id *
8343 sizeof(*fw_ddb_entry));
8344 ddb_size = sizeof(*fw_ddb_entry);
8345 } else {
8346 dev_db_start_offset = FLASH_RAW_ACCESS_ADDR +
8347 (ha->hw.flt_region_ddb << 2);
8348 /* flt_ddb_size is DDB table size for both ports
8349 * so divide it by 2 to calculate the offset for second port
8350 */
8351 if (ha->port_num == 1)
8352 dev_db_start_offset += (ha->hw.flt_ddb_size / 2);
8353
8354 dev_db_end_offset = dev_db_start_offset +
8355 (ha->hw.flt_ddb_size / 2);
8356
8357 dev_db_start_offset += (fnode_sess->target_id *
8358 sizeof(*fw_ddb_entry));
8359 dev_db_start_offset += offsetof(struct dev_db_entry, cookie);
8360
8361 ddb_size = sizeof(*ddb_cookie);
8362 }
8363
8364 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: start offset=%u, end offset=%u\n",
8365 __func__, dev_db_start_offset, dev_db_end_offset));
8366
8367 if (dev_db_start_offset > dev_db_end_offset) {
8368 rc = -EIO;
8369 DEBUG2(ql4_printk(KERN_ERR, ha, "%s:Invalid DDB index %u\n",
8370 __func__, fnode_sess->target_id));
8371 goto exit_ddb_del;
8372 }
8373
8374 pddb = dma_alloc_coherent(&ha->pdev->dev, ddb_size,
8375 &fw_ddb_entry_dma, GFP_KERNEL);
8376 if (!pddb) {
8377 rc = -ENOMEM;
8378 DEBUG2(ql4_printk(KERN_ERR, ha,
8379 "%s: Unable to allocate dma buffer\n",
8380 __func__));
8381 goto exit_ddb_del;
8382 }
8383
8384 if (is_qla40XX(ha)) {
8385 fw_ddb_entry = pddb;
8386 memset(fw_ddb_entry, 0, ddb_size);
8387 ddb_cookie = &fw_ddb_entry->cookie;
8388 } else {
8389 ddb_cookie = pddb;
8390 }
8391
8392 /* invalidate the cookie */
8393 *ddb_cookie = 0xFFEE;
8394 qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset,
8395 ddb_size, FLASH_OPT_RMW_COMMIT);
8396
8397 sysfs_ddb_del:
8398 target_id = fnode_sess->target_id;
8399 iscsi_destroy_flashnode_sess(fnode_sess);
8400 ql4_printk(KERN_INFO, ha,
8401 "%s: session and conn entries for flashnode %u of host %lu deleted\n",
8402 __func__, target_id, ha->host_no);
8403 exit_ddb_del:
8404 if (pddb)
8405 dma_free_coherent(&ha->pdev->dev, ddb_size, pddb,
8406 fw_ddb_entry_dma);
8407 return rc;
8408 }
8409
8410 /**
8411 * qla4xxx_sysfs_ddb_export - Create sysfs entries for firmware DDBs
8412 * @ha: pointer to adapter structure
8413 *
8414 * Export the firmware DDB for all send targets and normal targets to sysfs.
8415 **/
8416 int qla4xxx_sysfs_ddb_export(struct scsi_qla_host *ha)
8417 {
8418 struct dev_db_entry *fw_ddb_entry = NULL;
8419 dma_addr_t fw_ddb_entry_dma;
8420 uint16_t max_ddbs;
8421 uint16_t idx = 0;
8422 int ret = QLA_SUCCESS;
8423
8424 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev,
8425 sizeof(*fw_ddb_entry),
8426 &fw_ddb_entry_dma, GFP_KERNEL);
8427 if (!fw_ddb_entry) {
8428 DEBUG2(ql4_printk(KERN_ERR, ha,
8429 "%s: Unable to allocate dma buffer\n",
8430 __func__));
8431 return -ENOMEM;
8432 }
8433
8434 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES :
8435 MAX_DEV_DB_ENTRIES;
8436
8437 for (idx = 0; idx < max_ddbs; idx++) {
8438 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry, fw_ddb_entry_dma,
8439 idx))
8440 continue;
8441
8442 ret = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 0);
8443 if (ret) {
8444 ret = -EIO;
8445 break;
8446 }
8447 }
8448
8449 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry,
8450 fw_ddb_entry_dma);
8451
8452 return ret;
8453 }
8454
8455 static void qla4xxx_sysfs_ddb_remove(struct scsi_qla_host *ha)
8456 {
8457 iscsi_destroy_all_flashnode(ha->host);
8458 }
8459
8460 /**
8461 * qla4xxx_build_ddb_list - Build ddb list and setup sessions
8462 * @ha: pointer to adapter structure
8463 * @is_reset: Is this init path or reset path
8464 *
8465 * Create a list of sendtargets (st) from firmware DDBs, issue send targets
8466 * using connection open, then create the list of normal targets (nt)
8467 * from firmware DDBs. Based on the list of nt setup session and connection
8468 * objects.
8469 **/
8470 void qla4xxx_build_ddb_list(struct scsi_qla_host *ha, int is_reset)
8471 {
8472 uint16_t tmo = 0;
8473 struct list_head list_st, list_nt;
8474 struct qla_ddb_index *st_ddb_idx, *st_ddb_idx_tmp;
8475 unsigned long wtime;
8476
8477 if (!test_bit(AF_LINK_UP, &ha->flags)) {
8478 set_bit(AF_BUILD_DDB_LIST, &ha->flags);
8479 ha->is_reset = is_reset;
8480 return;
8481 }
8482
8483 INIT_LIST_HEAD(&list_st);
8484 INIT_LIST_HEAD(&list_nt);
8485
8486 qla4xxx_build_st_list(ha, &list_st);
8487
8488 /* Before issuing conn open mbox, ensure all IPs states are configured
8489 * Note, conn open fails if IPs are not configured
8490 */
8491 qla4xxx_wait_for_ip_configuration(ha);
8492
8493 /* Go thru the STs and fire the sendtargets by issuing conn open mbx */
8494 list_for_each_entry_safe(st_ddb_idx, st_ddb_idx_tmp, &list_st, list) {
8495 qla4xxx_conn_open(ha, st_ddb_idx->fw_ddb_idx);
8496 }
8497
8498 /* Wait to ensure all sendtargets are done for min 12 sec wait */
8499 tmo = ((ha->def_timeout > LOGIN_TOV) &&
8500 (ha->def_timeout < LOGIN_TOV * 10) ?
8501 ha->def_timeout : LOGIN_TOV);
8502
8503 DEBUG2(ql4_printk(KERN_INFO, ha,
8504 "Default time to wait for build ddb %d\n", tmo));
8505
8506 wtime = jiffies + (HZ * tmo);
8507 do {
8508 if (list_empty(&list_st))
8509 break;
8510
8511 qla4xxx_remove_failed_ddb(ha, &list_st);
8512 schedule_timeout_uninterruptible(HZ / 10);
8513 } while (time_after(wtime, jiffies));
8514
8515
8516 qla4xxx_build_nt_list(ha, &list_nt, &list_st, is_reset);
8517
8518 qla4xxx_free_ddb_list(&list_st);
8519 qla4xxx_free_ddb_list(&list_nt);
8520
8521 qla4xxx_free_ddb_index(ha);
8522 }
8523
8524 /**
8525 * qla4xxx_wait_login_resp_boot_tgt - Wait for iSCSI boot target login
8526 * response.
8527 * @ha: pointer to adapter structure
8528 *
8529 * When the boot entry is normal iSCSI target then DF_BOOT_TGT flag will be
8530 * set in DDB and we will wait for login response of boot targets during
8531 * probe.
8532 **/
8533 static void qla4xxx_wait_login_resp_boot_tgt(struct scsi_qla_host *ha)
8534 {
8535 struct ddb_entry *ddb_entry;
8536 struct dev_db_entry *fw_ddb_entry = NULL;
8537 dma_addr_t fw_ddb_entry_dma;
8538 unsigned long wtime;
8539 uint32_t ddb_state;
8540 int max_ddbs, idx, ret;
8541
8542 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
8543 MAX_DEV_DB_ENTRIES;
8544
8545 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8546 &fw_ddb_entry_dma, GFP_KERNEL);
8547 if (!fw_ddb_entry) {
8548 ql4_printk(KERN_ERR, ha,
8549 "%s: Unable to allocate dma buffer\n", __func__);
8550 goto exit_login_resp;
8551 }
8552
8553 wtime = jiffies + (HZ * BOOT_LOGIN_RESP_TOV);
8554
8555 for (idx = 0; idx < max_ddbs; idx++) {
8556 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
8557 if (ddb_entry == NULL)
8558 continue;
8559
8560 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) {
8561 DEBUG2(ql4_printk(KERN_INFO, ha,
8562 "%s: DDB index [%d]\n", __func__,
8563 ddb_entry->fw_ddb_index));
8564 do {
8565 ret = qla4xxx_get_fwddb_entry(ha,
8566 ddb_entry->fw_ddb_index,
8567 fw_ddb_entry, fw_ddb_entry_dma,
8568 NULL, NULL, &ddb_state, NULL,
8569 NULL, NULL);
8570 if (ret == QLA_ERROR)
8571 goto exit_login_resp;
8572
8573 if ((ddb_state == DDB_DS_SESSION_ACTIVE) ||
8574 (ddb_state == DDB_DS_SESSION_FAILED))
8575 break;
8576
8577 schedule_timeout_uninterruptible(HZ);
8578
8579 } while ((time_after(wtime, jiffies)));
8580
8581 if (!time_after(wtime, jiffies)) {
8582 DEBUG2(ql4_printk(KERN_INFO, ha,
8583 "%s: Login response wait timer expired\n",
8584 __func__));
8585 goto exit_login_resp;
8586 }
8587 }
8588 }
8589
8590 exit_login_resp:
8591 if (fw_ddb_entry)
8592 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8593 fw_ddb_entry, fw_ddb_entry_dma);
8594 }
8595
8596 /**
8597 * qla4xxx_probe_adapter - callback function to probe HBA
8598 * @pdev: pointer to pci_dev structure
8599 * @pci_device_id: pointer to pci_device entry
8600 *
8601 * This routine will probe for Qlogic 4xxx iSCSI host adapters.
8602 * It returns zero if successful. It also initializes all data necessary for
8603 * the driver.
8604 **/
8605 static int qla4xxx_probe_adapter(struct pci_dev *pdev,
8606 const struct pci_device_id *ent)
8607 {
8608 int ret = -ENODEV, status;
8609 struct Scsi_Host *host;
8610 struct scsi_qla_host *ha;
8611 uint8_t init_retry_count = 0;
8612 char buf[34];
8613 struct qla4_8xxx_legacy_intr_set *nx_legacy_intr;
8614 uint32_t dev_state;
8615
8616 if (pci_enable_device(pdev))
8617 return -1;
8618
8619 host = iscsi_host_alloc(&qla4xxx_driver_template, sizeof(*ha), 0);
8620 if (host == NULL) {
8621 printk(KERN_WARNING
8622 "qla4xxx: Couldn't allocate host from scsi layer!\n");
8623 goto probe_disable_device;
8624 }
8625
8626 /* Clear our data area */
8627 ha = to_qla_host(host);
8628 memset(ha, 0, sizeof(*ha));
8629
8630 /* Save the information from PCI BIOS. */
8631 ha->pdev = pdev;
8632 ha->host = host;
8633 ha->host_no = host->host_no;
8634 ha->func_num = PCI_FUNC(ha->pdev->devfn);
8635
8636 pci_enable_pcie_error_reporting(pdev);
8637
8638 /* Setup Runtime configurable options */
8639 if (is_qla8022(ha)) {
8640 ha->isp_ops = &qla4_82xx_isp_ops;
8641 ha->reg_tbl = (uint32_t *) qla4_82xx_reg_tbl;
8642 ha->qdr_sn_window = -1;
8643 ha->ddr_mn_window = -1;
8644 ha->curr_window = 255;
8645 nx_legacy_intr = &legacy_intr[ha->func_num];
8646 ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit;
8647 ha->nx_legacy_intr.tgt_status_reg =
8648 nx_legacy_intr->tgt_status_reg;
8649 ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg;
8650 ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg;
8651 } else if (is_qla8032(ha) || is_qla8042(ha)) {
8652 ha->isp_ops = &qla4_83xx_isp_ops;
8653 ha->reg_tbl = (uint32_t *)qla4_83xx_reg_tbl;
8654 } else {
8655 ha->isp_ops = &qla4xxx_isp_ops;
8656 }
8657
8658 if (is_qla80XX(ha)) {
8659 rwlock_init(&ha->hw_lock);
8660 ha->pf_bit = ha->func_num << 16;
8661 /* Set EEH reset type to fundamental if required by hba */
8662 pdev->needs_freset = 1;
8663 }
8664
8665 /* Configure PCI I/O space. */
8666 ret = ha->isp_ops->iospace_config(ha);
8667 if (ret)
8668 goto probe_failed_ioconfig;
8669
8670 ql4_printk(KERN_INFO, ha, "Found an ISP%04x, irq %d, iobase 0x%p\n",
8671 pdev->device, pdev->irq, ha->reg);
8672
8673 qla4xxx_config_dma_addressing(ha);
8674
8675 /* Initialize lists and spinlocks. */
8676 INIT_LIST_HEAD(&ha->free_srb_q);
8677
8678 mutex_init(&ha->mbox_sem);
8679 mutex_init(&ha->chap_sem);
8680 init_completion(&ha->mbx_intr_comp);
8681 init_completion(&ha->disable_acb_comp);
8682 init_completion(&ha->idc_comp);
8683 init_completion(&ha->link_up_comp);
8684
8685 spin_lock_init(&ha->hardware_lock);
8686 spin_lock_init(&ha->work_lock);
8687
8688 /* Initialize work list */
8689 INIT_LIST_HEAD(&ha->work_list);
8690
8691 /* Allocate dma buffers */
8692 if (qla4xxx_mem_alloc(ha)) {
8693 ql4_printk(KERN_WARNING, ha,
8694 "[ERROR] Failed to allocate memory for adapter\n");
8695
8696 ret = -ENOMEM;
8697 goto probe_failed;
8698 }
8699
8700 host->cmd_per_lun = 3;
8701 host->max_channel = 0;
8702 host->max_lun = MAX_LUNS - 1;
8703 host->max_id = MAX_TARGETS;
8704 host->max_cmd_len = IOCB_MAX_CDB_LEN;
8705 host->can_queue = MAX_SRBS ;
8706 host->transportt = qla4xxx_scsi_transport;
8707
8708 pci_set_drvdata(pdev, ha);
8709
8710 ret = scsi_add_host(host, &pdev->dev);
8711 if (ret)
8712 goto probe_failed;
8713
8714 if (is_qla80XX(ha))
8715 qla4_8xxx_get_flash_info(ha);
8716
8717 if (is_qla8032(ha) || is_qla8042(ha)) {
8718 qla4_83xx_read_reset_template(ha);
8719 /*
8720 * NOTE: If ql4dontresethba==1, set IDC_CTRL DONTRESET_BIT0.
8721 * If DONRESET_BIT0 is set, drivers should not set dev_state
8722 * to NEED_RESET. But if NEED_RESET is set, drivers should
8723 * should honor the reset.
8724 */
8725 if (ql4xdontresethba == 1)
8726 qla4_83xx_set_idc_dontreset(ha);
8727 }
8728
8729 /*
8730 * Initialize the Host adapter request/response queues and
8731 * firmware
8732 * NOTE: interrupts enabled upon successful completion
8733 */
8734 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER);
8735
8736 /* Dont retry adapter initialization if IRQ allocation failed */
8737 if (is_qla80XX(ha) && (status == QLA_ERROR))
8738 goto skip_retry_init;
8739
8740 while ((!test_bit(AF_ONLINE, &ha->flags)) &&
8741 init_retry_count++ < MAX_INIT_RETRIES) {
8742
8743 if (is_qla80XX(ha)) {
8744 ha->isp_ops->idc_lock(ha);
8745 dev_state = qla4_8xxx_rd_direct(ha,
8746 QLA8XXX_CRB_DEV_STATE);
8747 ha->isp_ops->idc_unlock(ha);
8748 if (dev_state == QLA8XXX_DEV_FAILED) {
8749 ql4_printk(KERN_WARNING, ha, "%s: don't retry "
8750 "initialize adapter. H/W is in failed state\n",
8751 __func__);
8752 break;
8753 }
8754 }
8755 DEBUG2(printk("scsi: %s: retrying adapter initialization "
8756 "(%d)\n", __func__, init_retry_count));
8757
8758 if (ha->isp_ops->reset_chip(ha) == QLA_ERROR)
8759 continue;
8760
8761 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER);
8762 if (is_qla80XX(ha) && (status == QLA_ERROR)) {
8763 if (qla4_8xxx_check_init_adapter_retry(ha) == QLA_ERROR)
8764 goto skip_retry_init;
8765 }
8766 }
8767
8768 skip_retry_init:
8769 if (!test_bit(AF_ONLINE, &ha->flags)) {
8770 ql4_printk(KERN_WARNING, ha, "Failed to initialize adapter\n");
8771
8772 if ((is_qla8022(ha) && ql4xdontresethba) ||
8773 ((is_qla8032(ha) || is_qla8042(ha)) &&
8774 qla4_83xx_idc_dontreset(ha))) {
8775 /* Put the device in failed state. */
8776 DEBUG2(printk(KERN_ERR "HW STATE: FAILED\n"));
8777 ha->isp_ops->idc_lock(ha);
8778 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
8779 QLA8XXX_DEV_FAILED);
8780 ha->isp_ops->idc_unlock(ha);
8781 }
8782 ret = -ENODEV;
8783 goto remove_host;
8784 }
8785
8786 /* Startup the kernel thread for this host adapter. */
8787 DEBUG2(printk("scsi: %s: Starting kernel thread for "
8788 "qla4xxx_dpc\n", __func__));
8789 sprintf(buf, "qla4xxx_%lu_dpc", ha->host_no);
8790 ha->dpc_thread = create_singlethread_workqueue(buf);
8791 if (!ha->dpc_thread) {
8792 ql4_printk(KERN_WARNING, ha, "Unable to start DPC thread!\n");
8793 ret = -ENODEV;
8794 goto remove_host;
8795 }
8796 INIT_WORK(&ha->dpc_work, qla4xxx_do_dpc);
8797
8798 ha->task_wq = alloc_workqueue("qla4xxx_%lu_task", WQ_MEM_RECLAIM, 1,
8799 ha->host_no);
8800 if (!ha->task_wq) {
8801 ql4_printk(KERN_WARNING, ha, "Unable to start task thread!\n");
8802 ret = -ENODEV;
8803 goto remove_host;
8804 }
8805
8806 /*
8807 * For ISP-8XXX, request_irqs is called in qla4_8xxx_load_risc
8808 * (which is called indirectly by qla4xxx_initialize_adapter),
8809 * so that irqs will be registered after crbinit but before
8810 * mbx_intr_enable.
8811 */
8812 if (is_qla40XX(ha)) {
8813 ret = qla4xxx_request_irqs(ha);
8814 if (ret) {
8815 ql4_printk(KERN_WARNING, ha, "Failed to reserve "
8816 "interrupt %d already in use.\n", pdev->irq);
8817 goto remove_host;
8818 }
8819 }
8820
8821 pci_save_state(ha->pdev);
8822 ha->isp_ops->enable_intrs(ha);
8823
8824 /* Start timer thread. */
8825 qla4xxx_start_timer(ha, 1);
8826
8827 set_bit(AF_INIT_DONE, &ha->flags);
8828
8829 qla4_8xxx_alloc_sysfs_attr(ha);
8830
8831 printk(KERN_INFO
8832 " QLogic iSCSI HBA Driver version: %s\n"
8833 " QLogic ISP%04x @ %s, host#=%ld, fw=%02d.%02d.%02d.%02d\n",
8834 qla4xxx_version_str, ha->pdev->device, pci_name(ha->pdev),
8835 ha->host_no, ha->fw_info.fw_major, ha->fw_info.fw_minor,
8836 ha->fw_info.fw_patch, ha->fw_info.fw_build);
8837
8838 /* Set the driver version */
8839 if (is_qla80XX(ha))
8840 qla4_8xxx_set_param(ha, SET_DRVR_VERSION);
8841
8842 if (qla4xxx_setup_boot_info(ha))
8843 ql4_printk(KERN_ERR, ha,
8844 "%s: No iSCSI boot target configured\n", __func__);
8845
8846 set_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags);
8847 /* Perform the build ddb list and login to each */
8848 qla4xxx_build_ddb_list(ha, INIT_ADAPTER);
8849 iscsi_host_for_each_session(ha->host, qla4xxx_login_flash_ddb);
8850 qla4xxx_wait_login_resp_boot_tgt(ha);
8851
8852 qla4xxx_create_chap_list(ha);
8853
8854 qla4xxx_create_ifaces(ha);
8855 return 0;
8856
8857 remove_host:
8858 scsi_remove_host(ha->host);
8859
8860 probe_failed:
8861 qla4xxx_free_adapter(ha);
8862
8863 probe_failed_ioconfig:
8864 pci_disable_pcie_error_reporting(pdev);
8865 scsi_host_put(ha->host);
8866
8867 probe_disable_device:
8868 pci_disable_device(pdev);
8869
8870 return ret;
8871 }
8872
8873 /**
8874 * qla4xxx_prevent_other_port_reinit - prevent other port from re-initialize
8875 * @ha: pointer to adapter structure
8876 *
8877 * Mark the other ISP-4xxx port to indicate that the driver is being removed,
8878 * so that the other port will not re-initialize while in the process of
8879 * removing the ha due to driver unload or hba hotplug.
8880 **/
8881 static void qla4xxx_prevent_other_port_reinit(struct scsi_qla_host *ha)
8882 {
8883 struct scsi_qla_host *other_ha = NULL;
8884 struct pci_dev *other_pdev = NULL;
8885 int fn = ISP4XXX_PCI_FN_2;
8886
8887 /*iscsi function numbers for ISP4xxx is 1 and 3*/
8888 if (PCI_FUNC(ha->pdev->devfn) & BIT_1)
8889 fn = ISP4XXX_PCI_FN_1;
8890
8891 other_pdev =
8892 pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus),
8893 ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
8894 fn));
8895
8896 /* Get other_ha if other_pdev is valid and state is enable*/
8897 if (other_pdev) {
8898 if (atomic_read(&other_pdev->enable_cnt)) {
8899 other_ha = pci_get_drvdata(other_pdev);
8900 if (other_ha) {
8901 set_bit(AF_HA_REMOVAL, &other_ha->flags);
8902 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: "
8903 "Prevent %s reinit\n", __func__,
8904 dev_name(&other_ha->pdev->dev)));
8905 }
8906 }
8907 pci_dev_put(other_pdev);
8908 }
8909 }
8910
8911 static void qla4xxx_destroy_ddb(struct scsi_qla_host *ha,
8912 struct ddb_entry *ddb_entry)
8913 {
8914 struct dev_db_entry *fw_ddb_entry = NULL;
8915 dma_addr_t fw_ddb_entry_dma;
8916 unsigned long wtime;
8917 uint32_t ddb_state;
8918 int options;
8919 int status;
8920
8921 options = LOGOUT_OPTION_CLOSE_SESSION;
8922 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR) {
8923 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__);
8924 goto clear_ddb;
8925 }
8926
8927 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8928 &fw_ddb_entry_dma, GFP_KERNEL);
8929 if (!fw_ddb_entry) {
8930 ql4_printk(KERN_ERR, ha,
8931 "%s: Unable to allocate dma buffer\n", __func__);
8932 goto clear_ddb;
8933 }
8934
8935 wtime = jiffies + (HZ * LOGOUT_TOV);
8936 do {
8937 status = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
8938 fw_ddb_entry, fw_ddb_entry_dma,
8939 NULL, NULL, &ddb_state, NULL,
8940 NULL, NULL);
8941 if (status == QLA_ERROR)
8942 goto free_ddb;
8943
8944 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) ||
8945 (ddb_state == DDB_DS_SESSION_FAILED))
8946 goto free_ddb;
8947
8948 schedule_timeout_uninterruptible(HZ);
8949 } while ((time_after(wtime, jiffies)));
8950
8951 free_ddb:
8952 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8953 fw_ddb_entry, fw_ddb_entry_dma);
8954 clear_ddb:
8955 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
8956 }
8957
8958 static void qla4xxx_destroy_fw_ddb_session(struct scsi_qla_host *ha)
8959 {
8960 struct ddb_entry *ddb_entry;
8961 int idx;
8962
8963 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
8964
8965 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
8966 if ((ddb_entry != NULL) &&
8967 (ddb_entry->ddb_type == FLASH_DDB)) {
8968
8969 qla4xxx_destroy_ddb(ha, ddb_entry);
8970 /*
8971 * we have decremented the reference count of the driver
8972 * when we setup the session to have the driver unload
8973 * to be seamless without actually destroying the
8974 * session
8975 **/
8976 try_module_get(qla4xxx_iscsi_transport.owner);
8977 iscsi_destroy_endpoint(ddb_entry->conn->ep);
8978 qla4xxx_free_ddb(ha, ddb_entry);
8979 iscsi_session_teardown(ddb_entry->sess);
8980 }
8981 }
8982 }
8983 /**
8984 * qla4xxx_remove_adapter - callback function to remove adapter.
8985 * @pci_dev: PCI device pointer
8986 **/
8987 static void qla4xxx_remove_adapter(struct pci_dev *pdev)
8988 {
8989 struct scsi_qla_host *ha;
8990
8991 /*
8992 * If the PCI device is disabled then it means probe_adapter had
8993 * failed and resources already cleaned up on probe_adapter exit.
8994 */
8995 if (!pci_is_enabled(pdev))
8996 return;
8997
8998 ha = pci_get_drvdata(pdev);
8999
9000 if (is_qla40XX(ha))
9001 qla4xxx_prevent_other_port_reinit(ha);
9002
9003 /* destroy iface from sysfs */
9004 qla4xxx_destroy_ifaces(ha);
9005
9006 if ((!ql4xdisablesysfsboot) && ha->boot_kset)
9007 iscsi_boot_destroy_kset(ha->boot_kset);
9008
9009 qla4xxx_destroy_fw_ddb_session(ha);
9010 qla4_8xxx_free_sysfs_attr(ha);
9011
9012 qla4xxx_sysfs_ddb_remove(ha);
9013 scsi_remove_host(ha->host);
9014
9015 qla4xxx_free_adapter(ha);
9016
9017 scsi_host_put(ha->host);
9018
9019 pci_disable_pcie_error_reporting(pdev);
9020 pci_disable_device(pdev);
9021 }
9022
9023 /**
9024 * qla4xxx_config_dma_addressing() - Configure OS DMA addressing method.
9025 * @ha: HA context
9026 *
9027 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
9028 * supported addressing method.
9029 */
9030 static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha)
9031 {
9032 int retval;
9033
9034 /* Update our PCI device dma_mask for full 64 bit mask */
9035 if (pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(64)) == 0) {
9036 if (pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) {
9037 dev_dbg(&ha->pdev->dev,
9038 "Failed to set 64 bit PCI consistent mask; "
9039 "using 32 bit.\n");
9040 retval = pci_set_consistent_dma_mask(ha->pdev,
9041 DMA_BIT_MASK(32));
9042 }
9043 } else
9044 retval = pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(32));
9045 }
9046
9047 static int qla4xxx_slave_alloc(struct scsi_device *sdev)
9048 {
9049 struct iscsi_cls_session *cls_sess;
9050 struct iscsi_session *sess;
9051 struct ddb_entry *ddb;
9052 int queue_depth = QL4_DEF_QDEPTH;
9053
9054 cls_sess = starget_to_session(sdev->sdev_target);
9055 sess = cls_sess->dd_data;
9056 ddb = sess->dd_data;
9057
9058 sdev->hostdata = ddb;
9059
9060 if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU)
9061 queue_depth = ql4xmaxqdepth;
9062
9063 scsi_change_queue_depth(sdev, queue_depth);
9064 return 0;
9065 }
9066
9067 /**
9068 * qla4xxx_del_from_active_array - returns an active srb
9069 * @ha: Pointer to host adapter structure.
9070 * @index: index into the active_array
9071 *
9072 * This routine removes and returns the srb at the specified index
9073 **/
9074 struct srb *qla4xxx_del_from_active_array(struct scsi_qla_host *ha,
9075 uint32_t index)
9076 {
9077 struct srb *srb = NULL;
9078 struct scsi_cmnd *cmd = NULL;
9079
9080 cmd = scsi_host_find_tag(ha->host, index);
9081 if (!cmd)
9082 return srb;
9083
9084 srb = (struct srb *)CMD_SP(cmd);
9085 if (!srb)
9086 return srb;
9087
9088 /* update counters */
9089 if (srb->flags & SRB_DMA_VALID) {
9090 ha->iocb_cnt -= srb->iocb_cnt;
9091 if (srb->cmd)
9092 srb->cmd->host_scribble =
9093 (unsigned char *)(unsigned long) MAX_SRBS;
9094 }
9095 return srb;
9096 }
9097
9098 /**
9099 * qla4xxx_eh_wait_on_command - waits for command to be returned by firmware
9100 * @ha: Pointer to host adapter structure.
9101 * @cmd: Scsi Command to wait on.
9102 *
9103 * This routine waits for the command to be returned by the Firmware
9104 * for some max time.
9105 **/
9106 static int qla4xxx_eh_wait_on_command(struct scsi_qla_host *ha,
9107 struct scsi_cmnd *cmd)
9108 {
9109 int done = 0;
9110 struct srb *rp;
9111 uint32_t max_wait_time = EH_WAIT_CMD_TOV;
9112 int ret = SUCCESS;
9113
9114 /* Dont wait on command if PCI error is being handled
9115 * by PCI AER driver
9116 */
9117 if (unlikely(pci_channel_offline(ha->pdev)) ||
9118 (test_bit(AF_EEH_BUSY, &ha->flags))) {
9119 ql4_printk(KERN_WARNING, ha, "scsi%ld: Return from %s\n",
9120 ha->host_no, __func__);
9121 return ret;
9122 }
9123
9124 do {
9125 /* Checking to see if its returned to OS */
9126 rp = (struct srb *) CMD_SP(cmd);
9127 if (rp == NULL) {
9128 done++;
9129 break;
9130 }
9131
9132 msleep(2000);
9133 } while (max_wait_time--);
9134
9135 return done;
9136 }
9137
9138 /**
9139 * qla4xxx_wait_for_hba_online - waits for HBA to come online
9140 * @ha: Pointer to host adapter structure
9141 **/
9142 static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha)
9143 {
9144 unsigned long wait_online;
9145
9146 wait_online = jiffies + (HBA_ONLINE_TOV * HZ);
9147 while (time_before(jiffies, wait_online)) {
9148
9149 if (adapter_up(ha))
9150 return QLA_SUCCESS;
9151
9152 msleep(2000);
9153 }
9154
9155 return QLA_ERROR;
9156 }
9157
9158 /**
9159 * qla4xxx_eh_wait_for_commands - wait for active cmds to finish.
9160 * @ha: pointer to HBA
9161 * @t: target id
9162 * @l: lun id
9163 *
9164 * This function waits for all outstanding commands to a lun to complete. It
9165 * returns 0 if all pending commands are returned and 1 otherwise.
9166 **/
9167 static int qla4xxx_eh_wait_for_commands(struct scsi_qla_host *ha,
9168 struct scsi_target *stgt,
9169 struct scsi_device *sdev)
9170 {
9171 int cnt;
9172 int status = 0;
9173 struct scsi_cmnd *cmd;
9174
9175 /*
9176 * Waiting for all commands for the designated target or dev
9177 * in the active array
9178 */
9179 for (cnt = 0; cnt < ha->host->can_queue; cnt++) {
9180 cmd = scsi_host_find_tag(ha->host, cnt);
9181 if (cmd && stgt == scsi_target(cmd->device) &&
9182 (!sdev || sdev == cmd->device)) {
9183 if (!qla4xxx_eh_wait_on_command(ha, cmd)) {
9184 status++;
9185 break;
9186 }
9187 }
9188 }
9189 return status;
9190 }
9191
9192 /**
9193 * qla4xxx_eh_abort - callback for abort task.
9194 * @cmd: Pointer to Linux's SCSI command structure
9195 *
9196 * This routine is called by the Linux OS to abort the specified
9197 * command.
9198 **/
9199 static int qla4xxx_eh_abort(struct scsi_cmnd *cmd)
9200 {
9201 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
9202 unsigned int id = cmd->device->id;
9203 uint64_t lun = cmd->device->lun;
9204 unsigned long flags;
9205 struct srb *srb = NULL;
9206 int ret = SUCCESS;
9207 int wait = 0;
9208 int rval;
9209
9210 ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%llu: Abort command issued cmd=%p, cdb=0x%x\n",
9211 ha->host_no, id, lun, cmd, cmd->cmnd[0]);
9212
9213 rval = qla4xxx_isp_check_reg(ha);
9214 if (rval != QLA_SUCCESS) {
9215 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n");
9216 return FAILED;
9217 }
9218
9219 spin_lock_irqsave(&ha->hardware_lock, flags);
9220 srb = (struct srb *) CMD_SP(cmd);
9221 if (!srb) {
9222 spin_unlock_irqrestore(&ha->hardware_lock, flags);
9223 ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%llu: Specified command has already completed.\n",
9224 ha->host_no, id, lun);
9225 return SUCCESS;
9226 }
9227 kref_get(&srb->srb_ref);
9228 spin_unlock_irqrestore(&ha->hardware_lock, flags);
9229
9230 if (qla4xxx_abort_task(ha, srb) != QLA_SUCCESS) {
9231 DEBUG3(printk("scsi%ld:%d:%llu: Abort_task mbx failed.\n",
9232 ha->host_no, id, lun));
9233 ret = FAILED;
9234 } else {
9235 DEBUG3(printk("scsi%ld:%d:%llu: Abort_task mbx success.\n",
9236 ha->host_no, id, lun));
9237 wait = 1;
9238 }
9239
9240 kref_put(&srb->srb_ref, qla4xxx_srb_compl);
9241
9242 /* Wait for command to complete */
9243 if (wait) {
9244 if (!qla4xxx_eh_wait_on_command(ha, cmd)) {
9245 DEBUG2(printk("scsi%ld:%d:%llu: Abort handler timed out\n",
9246 ha->host_no, id, lun));
9247 ret = FAILED;
9248 }
9249 }
9250
9251 ql4_printk(KERN_INFO, ha,
9252 "scsi%ld:%d:%llu: Abort command - %s\n",
9253 ha->host_no, id, lun, (ret == SUCCESS) ? "succeeded" : "failed");
9254
9255 return ret;
9256 }
9257
9258 /**
9259 * qla4xxx_eh_device_reset - callback for target reset.
9260 * @cmd: Pointer to Linux's SCSI command structure
9261 *
9262 * This routine is called by the Linux OS to reset all luns on the
9263 * specified target.
9264 **/
9265 static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd)
9266 {
9267 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
9268 struct ddb_entry *ddb_entry = cmd->device->hostdata;
9269 int ret = FAILED, stat;
9270 int rval;
9271
9272 if (!ddb_entry)
9273 return ret;
9274
9275 ret = iscsi_block_scsi_eh(cmd);
9276 if (ret)
9277 return ret;
9278 ret = FAILED;
9279
9280 ql4_printk(KERN_INFO, ha,
9281 "scsi%ld:%d:%d:%llu: DEVICE RESET ISSUED.\n", ha->host_no,
9282 cmd->device->channel, cmd->device->id, cmd->device->lun);
9283
9284 DEBUG2(printk(KERN_INFO
9285 "scsi%ld: DEVICE_RESET cmd=%p jiffies = 0x%lx, to=%x,"
9286 "dpc_flags=%lx, status=%x allowed=%d\n", ha->host_no,
9287 cmd, jiffies, cmd->request->timeout / HZ,
9288 ha->dpc_flags, cmd->result, cmd->allowed));
9289
9290 rval = qla4xxx_isp_check_reg(ha);
9291 if (rval != QLA_SUCCESS) {
9292 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n");
9293 return FAILED;
9294 }
9295
9296 /* FIXME: wait for hba to go online */
9297 stat = qla4xxx_reset_lun(ha, ddb_entry, cmd->device->lun);
9298 if (stat != QLA_SUCCESS) {
9299 ql4_printk(KERN_INFO, ha, "DEVICE RESET FAILED. %d\n", stat);
9300 goto eh_dev_reset_done;
9301 }
9302
9303 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device),
9304 cmd->device)) {
9305 ql4_printk(KERN_INFO, ha,
9306 "DEVICE RESET FAILED - waiting for "
9307 "commands.\n");
9308 goto eh_dev_reset_done;
9309 }
9310
9311 /* Send marker. */
9312 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun,
9313 MM_LUN_RESET) != QLA_SUCCESS)
9314 goto eh_dev_reset_done;
9315
9316 ql4_printk(KERN_INFO, ha,
9317 "scsi(%ld:%d:%d:%llu): DEVICE RESET SUCCEEDED.\n",
9318 ha->host_no, cmd->device->channel, cmd->device->id,
9319 cmd->device->lun);
9320
9321 ret = SUCCESS;
9322
9323 eh_dev_reset_done:
9324
9325 return ret;
9326 }
9327
9328 /**
9329 * qla4xxx_eh_target_reset - callback for target reset.
9330 * @cmd: Pointer to Linux's SCSI command structure
9331 *
9332 * This routine is called by the Linux OS to reset the target.
9333 **/
9334 static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd)
9335 {
9336 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
9337 struct ddb_entry *ddb_entry = cmd->device->hostdata;
9338 int stat, ret;
9339 int rval;
9340
9341 if (!ddb_entry)
9342 return FAILED;
9343
9344 ret = iscsi_block_scsi_eh(cmd);
9345 if (ret)
9346 return ret;
9347
9348 starget_printk(KERN_INFO, scsi_target(cmd->device),
9349 "WARM TARGET RESET ISSUED.\n");
9350
9351 DEBUG2(printk(KERN_INFO
9352 "scsi%ld: TARGET_DEVICE_RESET cmd=%p jiffies = 0x%lx, "
9353 "to=%x,dpc_flags=%lx, status=%x allowed=%d\n",
9354 ha->host_no, cmd, jiffies, cmd->request->timeout / HZ,
9355 ha->dpc_flags, cmd->result, cmd->allowed));
9356
9357 rval = qla4xxx_isp_check_reg(ha);
9358 if (rval != QLA_SUCCESS) {
9359 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n");
9360 return FAILED;
9361 }
9362
9363 stat = qla4xxx_reset_target(ha, ddb_entry);
9364 if (stat != QLA_SUCCESS) {
9365 starget_printk(KERN_INFO, scsi_target(cmd->device),
9366 "WARM TARGET RESET FAILED.\n");
9367 return FAILED;
9368 }
9369
9370 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device),
9371 NULL)) {
9372 starget_printk(KERN_INFO, scsi_target(cmd->device),
9373 "WARM TARGET DEVICE RESET FAILED - "
9374 "waiting for commands.\n");
9375 return FAILED;
9376 }
9377
9378 /* Send marker. */
9379 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun,
9380 MM_TGT_WARM_RESET) != QLA_SUCCESS) {
9381 starget_printk(KERN_INFO, scsi_target(cmd->device),
9382 "WARM TARGET DEVICE RESET FAILED - "
9383 "marker iocb failed.\n");
9384 return FAILED;
9385 }
9386
9387 starget_printk(KERN_INFO, scsi_target(cmd->device),
9388 "WARM TARGET RESET SUCCEEDED.\n");
9389 return SUCCESS;
9390 }
9391
9392 /**
9393 * qla4xxx_is_eh_active - check if error handler is running
9394 * @shost: Pointer to SCSI Host struct
9395 *
9396 * This routine finds that if reset host is called in EH
9397 * scenario or from some application like sg_reset
9398 **/
9399 static int qla4xxx_is_eh_active(struct Scsi_Host *shost)
9400 {
9401 if (shost->shost_state == SHOST_RECOVERY)
9402 return 1;
9403 return 0;
9404 }
9405
9406 /**
9407 * qla4xxx_eh_host_reset - kernel callback
9408 * @cmd: Pointer to Linux's SCSI command structure
9409 *
9410 * This routine is invoked by the Linux kernel to perform fatal error
9411 * recovery on the specified adapter.
9412 **/
9413 static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd)
9414 {
9415 int return_status = FAILED;
9416 struct scsi_qla_host *ha;
9417 int rval;
9418
9419 ha = to_qla_host(cmd->device->host);
9420
9421 rval = qla4xxx_isp_check_reg(ha);
9422 if (rval != QLA_SUCCESS) {
9423 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n");
9424 return FAILED;
9425 }
9426
9427 if ((is_qla8032(ha) || is_qla8042(ha)) && ql4xdontresethba)
9428 qla4_83xx_set_idc_dontreset(ha);
9429
9430 /*
9431 * For ISP8324 and ISP8042, if IDC_CTRL DONTRESET_BIT0 is set by other
9432 * protocol drivers, we should not set device_state to NEED_RESET
9433 */
9434 if (ql4xdontresethba ||
9435 ((is_qla8032(ha) || is_qla8042(ha)) &&
9436 qla4_83xx_idc_dontreset(ha))) {
9437 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n",
9438 ha->host_no, __func__));
9439
9440 /* Clear outstanding srb in queues */
9441 if (qla4xxx_is_eh_active(cmd->device->host))
9442 qla4xxx_abort_active_cmds(ha, DID_ABORT << 16);
9443
9444 return FAILED;
9445 }
9446
9447 ql4_printk(KERN_INFO, ha,
9448 "scsi(%ld:%d:%d:%llu): HOST RESET ISSUED.\n", ha->host_no,
9449 cmd->device->channel, cmd->device->id, cmd->device->lun);
9450
9451 if (qla4xxx_wait_for_hba_online(ha) != QLA_SUCCESS) {
9452 DEBUG2(printk("scsi%ld:%d: %s: Unable to reset host. Adapter "
9453 "DEAD.\n", ha->host_no, cmd->device->channel,
9454 __func__));
9455
9456 return FAILED;
9457 }
9458
9459 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
9460 if (is_qla80XX(ha))
9461 set_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
9462 else
9463 set_bit(DPC_RESET_HA, &ha->dpc_flags);
9464 }
9465
9466 if (qla4xxx_recover_adapter(ha) == QLA_SUCCESS)
9467 return_status = SUCCESS;
9468
9469 ql4_printk(KERN_INFO, ha, "HOST RESET %s.\n",
9470 return_status == FAILED ? "FAILED" : "SUCCEEDED");
9471
9472 return return_status;
9473 }
9474
9475 static int qla4xxx_context_reset(struct scsi_qla_host *ha)
9476 {
9477 uint32_t mbox_cmd[MBOX_REG_COUNT];
9478 uint32_t mbox_sts[MBOX_REG_COUNT];
9479 struct addr_ctrl_blk_def *acb = NULL;
9480 uint32_t acb_len = sizeof(struct addr_ctrl_blk_def);
9481 int rval = QLA_SUCCESS;
9482 dma_addr_t acb_dma;
9483
9484 acb = dma_alloc_coherent(&ha->pdev->dev,
9485 sizeof(struct addr_ctrl_blk_def),
9486 &acb_dma, GFP_KERNEL);
9487 if (!acb) {
9488 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc acb\n",
9489 __func__);
9490 rval = -ENOMEM;
9491 goto exit_port_reset;
9492 }
9493
9494 memset(acb, 0, acb_len);
9495
9496 rval = qla4xxx_get_acb(ha, acb_dma, PRIMARI_ACB, acb_len);
9497 if (rval != QLA_SUCCESS) {
9498 rval = -EIO;
9499 goto exit_free_acb;
9500 }
9501
9502 rval = qla4xxx_disable_acb(ha);
9503 if (rval != QLA_SUCCESS) {
9504 rval = -EIO;
9505 goto exit_free_acb;
9506 }
9507
9508 wait_for_completion_timeout(&ha->disable_acb_comp,
9509 DISABLE_ACB_TOV * HZ);
9510
9511 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], acb_dma);
9512 if (rval != QLA_SUCCESS) {
9513 rval = -EIO;
9514 goto exit_free_acb;
9515 }
9516
9517 exit_free_acb:
9518 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk_def),
9519 acb, acb_dma);
9520 exit_port_reset:
9521 DEBUG2(ql4_printk(KERN_INFO, ha, "%s %s\n", __func__,
9522 rval == QLA_SUCCESS ? "SUCCEEDED" : "FAILED"));
9523 return rval;
9524 }
9525
9526 static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type)
9527 {
9528 struct scsi_qla_host *ha = to_qla_host(shost);
9529 int rval = QLA_SUCCESS;
9530 uint32_t idc_ctrl;
9531
9532 if (ql4xdontresethba) {
9533 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Don't Reset HBA\n",
9534 __func__));
9535 rval = -EPERM;
9536 goto exit_host_reset;
9537 }
9538
9539 if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
9540 goto recover_adapter;
9541
9542 switch (reset_type) {
9543 case SCSI_ADAPTER_RESET:
9544 set_bit(DPC_RESET_HA, &ha->dpc_flags);
9545 break;
9546 case SCSI_FIRMWARE_RESET:
9547 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
9548 if (is_qla80XX(ha))
9549 /* set firmware context reset */
9550 set_bit(DPC_RESET_HA_FW_CONTEXT,
9551 &ha->dpc_flags);
9552 else {
9553 rval = qla4xxx_context_reset(ha);
9554 goto exit_host_reset;
9555 }
9556 }
9557 break;
9558 }
9559
9560 recover_adapter:
9561 /* For ISP8324 and ISP8042 set graceful reset bit in IDC_DRV_CTRL if
9562 * reset is issued by application */
9563 if ((is_qla8032(ha) || is_qla8042(ha)) &&
9564 test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
9565 idc_ctrl = qla4_83xx_rd_reg(ha, QLA83XX_IDC_DRV_CTRL);
9566 qla4_83xx_wr_reg(ha, QLA83XX_IDC_DRV_CTRL,
9567 (idc_ctrl | GRACEFUL_RESET_BIT1));
9568 }
9569
9570 rval = qla4xxx_recover_adapter(ha);
9571 if (rval != QLA_SUCCESS) {
9572 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: recover adapter fail\n",
9573 __func__));
9574 rval = -EIO;
9575 }
9576
9577 exit_host_reset:
9578 return rval;
9579 }
9580
9581 /* PCI AER driver recovers from all correctable errors w/o
9582 * driver intervention. For uncorrectable errors PCI AER
9583 * driver calls the following device driver's callbacks
9584 *
9585 * - Fatal Errors - link_reset
9586 * - Non-Fatal Errors - driver's error_detected() which
9587 * returns CAN_RECOVER, NEED_RESET or DISCONNECT.
9588 *
9589 * PCI AER driver calls
9590 * CAN_RECOVER - driver's mmio_enabled(), mmio_enabled()
9591 * returns RECOVERED or NEED_RESET if fw_hung
9592 * NEED_RESET - driver's slot_reset()
9593 * DISCONNECT - device is dead & cannot recover
9594 * RECOVERED - driver's resume()
9595 */
9596 static pci_ers_result_t
9597 qla4xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
9598 {
9599 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9600
9601 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: error detected:state %x\n",
9602 ha->host_no, __func__, state);
9603
9604 if (!is_aer_supported(ha))
9605 return PCI_ERS_RESULT_NONE;
9606
9607 switch (state) {
9608 case pci_channel_io_normal:
9609 clear_bit(AF_EEH_BUSY, &ha->flags);
9610 return PCI_ERS_RESULT_CAN_RECOVER;
9611 case pci_channel_io_frozen:
9612 set_bit(AF_EEH_BUSY, &ha->flags);
9613 qla4xxx_mailbox_premature_completion(ha);
9614 qla4xxx_free_irqs(ha);
9615 pci_disable_device(pdev);
9616 /* Return back all IOs */
9617 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
9618 return PCI_ERS_RESULT_NEED_RESET;
9619 case pci_channel_io_perm_failure:
9620 set_bit(AF_EEH_BUSY, &ha->flags);
9621 set_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags);
9622 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
9623 return PCI_ERS_RESULT_DISCONNECT;
9624 }
9625 return PCI_ERS_RESULT_NEED_RESET;
9626 }
9627
9628 /**
9629 * qla4xxx_pci_mmio_enabled() gets called if
9630 * qla4xxx_pci_error_detected() returns PCI_ERS_RESULT_CAN_RECOVER
9631 * and read/write to the device still works.
9632 **/
9633 static pci_ers_result_t
9634 qla4xxx_pci_mmio_enabled(struct pci_dev *pdev)
9635 {
9636 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9637
9638 if (!is_aer_supported(ha))
9639 return PCI_ERS_RESULT_NONE;
9640
9641 return PCI_ERS_RESULT_RECOVERED;
9642 }
9643
9644 static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha)
9645 {
9646 uint32_t rval = QLA_ERROR;
9647 int fn;
9648 struct pci_dev *other_pdev = NULL;
9649
9650 ql4_printk(KERN_WARNING, ha, "scsi%ld: In %s\n", ha->host_no, __func__);
9651
9652 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
9653
9654 if (test_bit(AF_ONLINE, &ha->flags)) {
9655 clear_bit(AF_ONLINE, &ha->flags);
9656 clear_bit(AF_LINK_UP, &ha->flags);
9657 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session);
9658 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
9659 }
9660
9661 fn = PCI_FUNC(ha->pdev->devfn);
9662 if (is_qla8022(ha)) {
9663 while (fn > 0) {
9664 fn--;
9665 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Finding PCI device at func %x\n",
9666 ha->host_no, __func__, fn);
9667 /* Get the pci device given the domain, bus,
9668 * slot/function number */
9669 other_pdev = pci_get_domain_bus_and_slot(
9670 pci_domain_nr(ha->pdev->bus),
9671 ha->pdev->bus->number,
9672 PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
9673 fn));
9674
9675 if (!other_pdev)
9676 continue;
9677
9678 if (atomic_read(&other_pdev->enable_cnt)) {
9679 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Found PCI func in enabled state%x\n",
9680 ha->host_no, __func__, fn);
9681 pci_dev_put(other_pdev);
9682 break;
9683 }
9684 pci_dev_put(other_pdev);
9685 }
9686 } else {
9687 /* this case is meant for ISP83xx/ISP84xx only */
9688 if (qla4_83xx_can_perform_reset(ha)) {
9689 /* reset fn as iSCSI is going to perform the reset */
9690 fn = 0;
9691 }
9692 }
9693
9694 /* The first function on the card, the reset owner will
9695 * start & initialize the firmware. The other functions
9696 * on the card will reset the firmware context
9697 */
9698 if (!fn) {
9699 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn being reset "
9700 "0x%x is the owner\n", ha->host_no, __func__,
9701 ha->pdev->devfn);
9702
9703 ha->isp_ops->idc_lock(ha);
9704 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9705 QLA8XXX_DEV_COLD);
9706 ha->isp_ops->idc_unlock(ha);
9707
9708 rval = qla4_8xxx_update_idc_reg(ha);
9709 if (rval == QLA_ERROR) {
9710 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: FAILED\n",
9711 ha->host_no, __func__);
9712 ha->isp_ops->idc_lock(ha);
9713 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9714 QLA8XXX_DEV_FAILED);
9715 ha->isp_ops->idc_unlock(ha);
9716 goto exit_error_recovery;
9717 }
9718
9719 clear_bit(AF_FW_RECOVERY, &ha->flags);
9720 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
9721
9722 if (rval != QLA_SUCCESS) {
9723 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: "
9724 "FAILED\n", ha->host_no, __func__);
9725 qla4xxx_free_irqs(ha);
9726 ha->isp_ops->idc_lock(ha);
9727 qla4_8xxx_clear_drv_active(ha);
9728 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9729 QLA8XXX_DEV_FAILED);
9730 ha->isp_ops->idc_unlock(ha);
9731 } else {
9732 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: "
9733 "READY\n", ha->host_no, __func__);
9734 ha->isp_ops->idc_lock(ha);
9735 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9736 QLA8XXX_DEV_READY);
9737 /* Clear driver state register */
9738 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_STATE, 0);
9739 qla4_8xxx_set_drv_active(ha);
9740 ha->isp_ops->idc_unlock(ha);
9741 ha->isp_ops->enable_intrs(ha);
9742 }
9743 } else {
9744 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn 0x%x is not "
9745 "the reset owner\n", ha->host_no, __func__,
9746 ha->pdev->devfn);
9747 if ((qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE) ==
9748 QLA8XXX_DEV_READY)) {
9749 clear_bit(AF_FW_RECOVERY, &ha->flags);
9750 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
9751 if (rval == QLA_SUCCESS)
9752 ha->isp_ops->enable_intrs(ha);
9753 else
9754 qla4xxx_free_irqs(ha);
9755
9756 ha->isp_ops->idc_lock(ha);
9757 qla4_8xxx_set_drv_active(ha);
9758 ha->isp_ops->idc_unlock(ha);
9759 }
9760 }
9761 exit_error_recovery:
9762 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
9763 return rval;
9764 }
9765
9766 static pci_ers_result_t
9767 qla4xxx_pci_slot_reset(struct pci_dev *pdev)
9768 {
9769 pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
9770 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9771 int rc;
9772
9773 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: slot_reset\n",
9774 ha->host_no, __func__);
9775
9776 if (!is_aer_supported(ha))
9777 return PCI_ERS_RESULT_NONE;
9778
9779 /* Restore the saved state of PCIe device -
9780 * BAR registers, PCI Config space, PCIX, MSI,
9781 * IOV states
9782 */
9783 pci_restore_state(pdev);
9784
9785 /* pci_restore_state() clears the saved_state flag of the device
9786 * save restored state which resets saved_state flag
9787 */
9788 pci_save_state(pdev);
9789
9790 /* Initialize device or resume if in suspended state */
9791 rc = pci_enable_device(pdev);
9792 if (rc) {
9793 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Can't re-enable "
9794 "device after reset\n", ha->host_no, __func__);
9795 goto exit_slot_reset;
9796 }
9797
9798 ha->isp_ops->disable_intrs(ha);
9799
9800 if (is_qla80XX(ha)) {
9801 if (qla4_8xxx_error_recovery(ha) == QLA_SUCCESS) {
9802 ret = PCI_ERS_RESULT_RECOVERED;
9803 goto exit_slot_reset;
9804 } else
9805 goto exit_slot_reset;
9806 }
9807
9808 exit_slot_reset:
9809 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Return=%x\n"
9810 "device after reset\n", ha->host_no, __func__, ret);
9811 return ret;
9812 }
9813
9814 static void
9815 qla4xxx_pci_resume(struct pci_dev *pdev)
9816 {
9817 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9818 int ret;
9819
9820 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: pci_resume\n",
9821 ha->host_no, __func__);
9822
9823 ret = qla4xxx_wait_for_hba_online(ha);
9824 if (ret != QLA_SUCCESS) {
9825 ql4_printk(KERN_ERR, ha, "scsi%ld: %s: the device failed to "
9826 "resume I/O from slot/link_reset\n", ha->host_no,
9827 __func__);
9828 }
9829
9830 pci_cleanup_aer_uncorrect_error_status(pdev);
9831 clear_bit(AF_EEH_BUSY, &ha->flags);
9832 }
9833
9834 static const struct pci_error_handlers qla4xxx_err_handler = {
9835 .error_detected = qla4xxx_pci_error_detected,
9836 .mmio_enabled = qla4xxx_pci_mmio_enabled,
9837 .slot_reset = qla4xxx_pci_slot_reset,
9838 .resume = qla4xxx_pci_resume,
9839 };
9840
9841 static struct pci_device_id qla4xxx_pci_tbl[] = {
9842 {
9843 .vendor = PCI_VENDOR_ID_QLOGIC,
9844 .device = PCI_DEVICE_ID_QLOGIC_ISP4010,
9845 .subvendor = PCI_ANY_ID,
9846 .subdevice = PCI_ANY_ID,
9847 },
9848 {
9849 .vendor = PCI_VENDOR_ID_QLOGIC,
9850 .device = PCI_DEVICE_ID_QLOGIC_ISP4022,
9851 .subvendor = PCI_ANY_ID,
9852 .subdevice = PCI_ANY_ID,
9853 },
9854 {
9855 .vendor = PCI_VENDOR_ID_QLOGIC,
9856 .device = PCI_DEVICE_ID_QLOGIC_ISP4032,
9857 .subvendor = PCI_ANY_ID,
9858 .subdevice = PCI_ANY_ID,
9859 },
9860 {
9861 .vendor = PCI_VENDOR_ID_QLOGIC,
9862 .device = PCI_DEVICE_ID_QLOGIC_ISP8022,
9863 .subvendor = PCI_ANY_ID,
9864 .subdevice = PCI_ANY_ID,
9865 },
9866 {
9867 .vendor = PCI_VENDOR_ID_QLOGIC,
9868 .device = PCI_DEVICE_ID_QLOGIC_ISP8324,
9869 .subvendor = PCI_ANY_ID,
9870 .subdevice = PCI_ANY_ID,
9871 },
9872 {
9873 .vendor = PCI_VENDOR_ID_QLOGIC,
9874 .device = PCI_DEVICE_ID_QLOGIC_ISP8042,
9875 .subvendor = PCI_ANY_ID,
9876 .subdevice = PCI_ANY_ID,
9877 },
9878 {0, 0},
9879 };
9880 MODULE_DEVICE_TABLE(pci, qla4xxx_pci_tbl);
9881
9882 static struct pci_driver qla4xxx_pci_driver = {
9883 .name = DRIVER_NAME,
9884 .id_table = qla4xxx_pci_tbl,
9885 .probe = qla4xxx_probe_adapter,
9886 .remove = qla4xxx_remove_adapter,
9887 .err_handler = &qla4xxx_err_handler,
9888 };
9889
9890 static int __init qla4xxx_module_init(void)
9891 {
9892 int ret;
9893
9894 if (ql4xqfulltracking)
9895 qla4xxx_driver_template.track_queue_depth = 1;
9896
9897 /* Allocate cache for SRBs. */
9898 srb_cachep = kmem_cache_create("qla4xxx_srbs", sizeof(struct srb), 0,
9899 SLAB_HWCACHE_ALIGN, NULL);
9900 if (srb_cachep == NULL) {
9901 printk(KERN_ERR
9902 "%s: Unable to allocate SRB cache..."
9903 "Failing load!\n", DRIVER_NAME);
9904 ret = -ENOMEM;
9905 goto no_srp_cache;
9906 }
9907
9908 /* Derive version string. */
9909 strcpy(qla4xxx_version_str, QLA4XXX_DRIVER_VERSION);
9910 if (ql4xextended_error_logging)
9911 strcat(qla4xxx_version_str, "-debug");
9912
9913 qla4xxx_scsi_transport =
9914 iscsi_register_transport(&qla4xxx_iscsi_transport);
9915 if (!qla4xxx_scsi_transport){
9916 ret = -ENODEV;
9917 goto release_srb_cache;
9918 }
9919
9920 ret = pci_register_driver(&qla4xxx_pci_driver);
9921 if (ret)
9922 goto unregister_transport;
9923
9924 printk(KERN_INFO "QLogic iSCSI HBA Driver\n");
9925 return 0;
9926
9927 unregister_transport:
9928 iscsi_unregister_transport(&qla4xxx_iscsi_transport);
9929 release_srb_cache:
9930 kmem_cache_destroy(srb_cachep);
9931 no_srp_cache:
9932 return ret;
9933 }
9934
9935 static void __exit qla4xxx_module_exit(void)
9936 {
9937 pci_unregister_driver(&qla4xxx_pci_driver);
9938 iscsi_unregister_transport(&qla4xxx_iscsi_transport);
9939 kmem_cache_destroy(srb_cachep);
9940 }
9941
9942 module_init(qla4xxx_module_init);
9943 module_exit(qla4xxx_module_exit);
9944
9945 MODULE_AUTHOR("QLogic Corporation");
9946 MODULE_DESCRIPTION("QLogic iSCSI HBA Driver");
9947 MODULE_LICENSE("GPL");
9948 MODULE_VERSION(QLA4XXX_DRIVER_VERSION);
Linux with added FPC-III support