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Merge branch 'for-3.15' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping
[mirror_ubuntu-bionic-kernel.git] / drivers / scsi / qla4xxx / ql4_os.c
CommitLineData
afaf5a2d
DS		 1/*
2 * QLogic iSCSI HBA Driver
4a4f51e9 3 * Copyright (c) 2003-2013 QLogic Corporation
afaf5a2d
DS		 4 *
5 * See LICENSE.qla4xxx for copyright and licensing details.
6 */
7#include <linux/moduleparam.h>
5a0e3ad6 8#include <linux/slab.h>
2a991c21
MR		 9#include <linux/blkdev.h>
10#include <linux/iscsi_boot_sysfs.h>
13483730 11#include <linux/inet.h>
afaf5a2d
DS		 12
13#include <scsi/scsi_tcq.h>
14#include <scsi/scsicam.h>
15
16#include "ql4_def.h"
bee4fe8e
DS		 17#include "ql4_version.h"
18#include "ql4_glbl.h"
19#include "ql4_dbg.h"
20#include "ql4_inline.h"
6e7b4292 21#include "ql4_83xx.h"
afaf5a2d
DS		 22
23/*
24 * Driver version
25 */
47975477 26static char qla4xxx_version_str[40];
afaf5a2d
DS		 27
28/*
29 * SRB allocation cache
30 */
e18b890b 31static struct kmem_cache *srb_cachep;
afaf5a2d
DS		 32
33/*
34 * Module parameter information and variables
35 */
a7380a65 36static int ql4xdisablesysfsboot = 1;
13483730
MC		 37module_param(ql4xdisablesysfsboot, int, S_IRUGO | S_IWUSR);
38MODULE_PARM_DESC(ql4xdisablesysfsboot,
a4e8a715
KH		 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)");
13483730 42
3573bfb2 43int ql4xdontresethba;
f4f5df23 44module_param(ql4xdontresethba, int, S_IRUGO | S_IWUSR);
afaf5a2d 45MODULE_PARM_DESC(ql4xdontresethba,
a4e8a715
KH		 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");
afaf5a2d 49
a4e8a715 50int ql4xextended_error_logging;
f4f5df23 51module_param(ql4xextended_error_logging, int, S_IRUGO | S_IWUSR);
11010fec 52MODULE_PARM_DESC(ql4xextended_error_logging,
a4e8a715
KH		 53 " Option to enable extended error logging.\n"
54 "\t\t 0 - no logging (Default)\n"
55 "\t\t 2 - debug logging");
afaf5a2d 56
f4f5df23
VC		 57int ql4xenablemsix = 1;
58module_param(ql4xenablemsix, int, S_IRUGO|S_IWUSR);
59MODULE_PARM_DESC(ql4xenablemsix,
a4e8a715
KH		 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.");
477ffb9d 64
d510d965 65#define QL4_DEF_QDEPTH 32
8bb4033d
VC		 66static int ql4xmaxqdepth = QL4_DEF_QDEPTH;
67module_param(ql4xmaxqdepth, int, S_IRUGO | S_IWUSR);
68MODULE_PARM_DESC(ql4xmaxqdepth,
a4e8a715
KH		 69 " Maximum queue depth to report for target devices.\n"
70 "\t\t Default: 32.");
d510d965 71
f7b4aa63
TP		 72static int ql4xqfulltracking = 1;
73module_param(ql4xqfulltracking, int, S_IRUGO | S_IWUSR);
74MODULE_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
3038727c
VC		 80static int ql4xsess_recovery_tmo = QL4_SESS_RECOVERY_TMO;
81module_param(ql4xsess_recovery_tmo, int, S_IRUGO);
82MODULE_PARM_DESC(ql4xsess_recovery_tmo,
3573bfb2 83 " Target Session Recovery Timeout.\n"
a4e8a715 84 "\t\t Default: 120 sec.");
3038727c 85
068237c8
TP		 86int ql4xmdcapmask = 0x1F;
87module_param(ql4xmdcapmask, int, S_IRUGO);
88MODULE_PARM_DESC(ql4xmdcapmask,
89 " Set the Minidump driver capture mask level.\n"
90 "\t\t Default is 0x1F.\n"
91 "\t\t Can be set to 0x3, 0x7, 0xF, 0x1F, 0x3F, 0x7F");
92
93int ql4xenablemd = 1;
94module_param(ql4xenablemd, int, S_IRUGO | S_IWUSR);
95MODULE_PARM_DESC(ql4xenablemd,
96 " Set to enable minidump.\n"
97 "\t\t 0 - disable minidump\n"
98 "\t\t 1 - enable minidump (Default)");
99
b3a271a9 100static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha);
afaf5a2d
DS		 101/*
102 * SCSI host template entry points
103 */
47975477 104static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha);
afaf5a2d
DS		 105
106/*
107 * iSCSI template entry points
108 */
fca9f04d
MC		 109static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess,
110 enum iscsi_param param, char *buf);
afaf5a2d
DS		 111static int qla4xxx_conn_get_param(struct iscsi_cls_conn *conn,
112 enum iscsi_param param, char *buf);
aa1e93a2
MC		 113static int qla4xxx_host_get_param(struct Scsi_Host *shost,
114 enum iscsi_host_param param, char *buf);
00c31889
MC		 115static int qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data,
116 uint32_t len);
ed1086e0
VC		 117static int qla4xxx_get_iface_param(struct iscsi_iface *iface,
118 enum iscsi_param_type param_type,
119 int param, char *buf);
5c656af7 120static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc);
b3a271a9
MR		 121static struct iscsi_endpoint *qla4xxx_ep_connect(struct Scsi_Host *shost,
122 struct sockaddr *dst_addr,
123 int non_blocking);
124static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms);
125static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep);
126static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep,
127 enum iscsi_param param, char *buf);
128static int qla4xxx_conn_start(struct iscsi_cls_conn *conn);
129static struct iscsi_cls_conn *
130qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx);
131static 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);
134static void qla4xxx_conn_destroy(struct iscsi_cls_conn *conn);
135static struct iscsi_cls_session *
136qla4xxx_session_create(struct iscsi_endpoint *ep, uint16_t cmds_max,
137 uint16_t qdepth, uint32_t initial_cmdsn);
138static void qla4xxx_session_destroy(struct iscsi_cls_session *sess);
139static void qla4xxx_task_work(struct work_struct *wdata);
140static int qla4xxx_alloc_pdu(struct iscsi_task *, uint8_t);
141static int qla4xxx_task_xmit(struct iscsi_task *);
142static void qla4xxx_task_cleanup(struct iscsi_task *);
143static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session);
144static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn,
145 struct iscsi_stats *stats);
c0b9d3f7
VC		 146static 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);
376738af
NJ		 149static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx,
150 uint32_t *num_entries, char *buf);
151static int qla4xxx_delete_chap(struct Scsi_Host *shost, uint16_t chap_tbl_idx);
26ffd7b4
AC		 152static int qla4xxx_set_chap_entry(struct Scsi_Host *shost, void *data,
153 int len);
4161cee5 154static int qla4xxx_get_host_stats(struct Scsi_Host *shost, char *buf, int len);
c0b9d3f7 155
afaf5a2d
DS		 156/*
157 * SCSI host template entry points
158 */
f281233d 159static int qla4xxx_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *cmd);
09a0f719 160static int qla4xxx_eh_abort(struct scsi_cmnd *cmd);
afaf5a2d 161static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd);
ce545039 162static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd);
afaf5a2d
DS		 163static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd);
164static int qla4xxx_slave_alloc(struct scsi_device *device);
165static int qla4xxx_slave_configure(struct scsi_device *device);
166static void qla4xxx_slave_destroy(struct scsi_device *sdev);
5e9bcec7 167static umode_t qla4_attr_is_visible(int param_type, int param);
95d31262 168static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type);
f7b4aa63
TP		 169static int qla4xxx_change_queue_depth(struct scsi_device *sdev, int qdepth,
170 int reason);
afaf5a2d 171
1e9e2be3
AC		 172/*
173 * iSCSI Flash DDB sysfs entry points
174 */
175static int
176qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess,
177 struct iscsi_bus_flash_conn *fnode_conn,
178 void *data, int len);
179static int
180qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session *fnode_sess,
181 int param, char *buf);
182static int qla4xxx_sysfs_ddb_add(struct Scsi_Host *shost, const char *buf,
183 int len);
184static int
185qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess);
186static int qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess,
187 struct iscsi_bus_flash_conn *fnode_conn);
188static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess,
189 struct iscsi_bus_flash_conn *fnode_conn);
190static int qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess);
191
f4f5df23
VC		 192static struct qla4_8xxx_legacy_intr_set legacy_intr[] =
193 QLA82XX_LEGACY_INTR_CONFIG;
194
afaf5a2d
DS		 195static struct scsi_host_template qla4xxx_driver_template = {
196 .module = THIS_MODULE,
197 .name = DRIVER_NAME,
198 .proc_name = DRIVER_NAME,
199 .queuecommand = qla4xxx_queuecommand,
200
09a0f719 201 .eh_abort_handler = qla4xxx_eh_abort,
afaf5a2d 202 .eh_device_reset_handler = qla4xxx_eh_device_reset,
ce545039 203 .eh_target_reset_handler = qla4xxx_eh_target_reset,
afaf5a2d 204 .eh_host_reset_handler = qla4xxx_eh_host_reset,
5c656af7 205 .eh_timed_out = qla4xxx_eh_cmd_timed_out,
afaf5a2d
DS		 206
207 .slave_configure = qla4xxx_slave_configure,
208 .slave_alloc = qla4xxx_slave_alloc,
209 .slave_destroy = qla4xxx_slave_destroy,
f7b4aa63 210 .change_queue_depth = qla4xxx_change_queue_depth,
afaf5a2d
DS		 211
212 .this_id = -1,
213 .cmd_per_lun = 3,
214 .use_clustering = ENABLE_CLUSTERING,
215 .sg_tablesize = SG_ALL,
216
217 .max_sectors = 0xFFFF,
7ad633c0 218 .shost_attrs = qla4xxx_host_attrs,
95d31262 219 .host_reset = qla4xxx_host_reset,
a355943c 220 .vendor_id = SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC,
afaf5a2d
DS		 221};
222
223static struct iscsi_transport qla4xxx_iscsi_transport = {
224 .owner = THIS_MODULE,
225 .name = DRIVER_NAME,
b3a271a9
MR		 226 .caps = CAP_TEXT_NEGO |
227 CAP_DATA_PATH_OFFLOAD | CAP_HDRDGST |
228 CAP_DATADGST | CAP_LOGIN_OFFLOAD |
229 CAP_MULTI_R2T,
5e9bcec7 230 .attr_is_visible = qla4_attr_is_visible,
b3a271a9
MR		 231 .create_session = qla4xxx_session_create,
232 .destroy_session = qla4xxx_session_destroy,
233 .start_conn = qla4xxx_conn_start,
234 .create_conn = qla4xxx_conn_create,
235 .bind_conn = qla4xxx_conn_bind,
236 .stop_conn = iscsi_conn_stop,
237 .destroy_conn = qla4xxx_conn_destroy,
238 .set_param = iscsi_set_param,
afaf5a2d 239 .get_conn_param = qla4xxx_conn_get_param,
fca9f04d 240 .get_session_param = qla4xxx_session_get_param,
b3a271a9
MR		 241 .get_ep_param = qla4xxx_get_ep_param,
242 .ep_connect = qla4xxx_ep_connect,
243 .ep_poll = qla4xxx_ep_poll,
244 .ep_disconnect = qla4xxx_ep_disconnect,
245 .get_stats = qla4xxx_conn_get_stats,
246 .send_pdu = iscsi_conn_send_pdu,
247 .xmit_task = qla4xxx_task_xmit,
248 .cleanup_task = qla4xxx_task_cleanup,
249 .alloc_pdu = qla4xxx_alloc_pdu,
250
aa1e93a2 251 .get_host_param = qla4xxx_host_get_param,
d00efe3f 252 .set_iface_param = qla4xxx_iface_set_param,
ed1086e0 253 .get_iface_param = qla4xxx_get_iface_param,
a355943c 254 .bsg_request = qla4xxx_bsg_request,
c0b9d3f7 255 .send_ping = qla4xxx_send_ping,
376738af
NJ		 256 .get_chap = qla4xxx_get_chap_list,
257 .delete_chap = qla4xxx_delete_chap,
26ffd7b4 258 .set_chap = qla4xxx_set_chap_entry,
1e9e2be3
AC		 259 .get_flashnode_param = qla4xxx_sysfs_ddb_get_param,
260 .set_flashnode_param = qla4xxx_sysfs_ddb_set_param,
261 .new_flashnode = qla4xxx_sysfs_ddb_add,
262 .del_flashnode = qla4xxx_sysfs_ddb_delete,
263 .login_flashnode = qla4xxx_sysfs_ddb_login,
264 .logout_flashnode = qla4xxx_sysfs_ddb_logout,
265 .logout_flashnode_sid = qla4xxx_sysfs_ddb_logout_sid,
4161cee5 266 .get_host_stats = qla4xxx_get_host_stats,
afaf5a2d
DS		 267};
268
269static struct scsi_transport_template *qla4xxx_scsi_transport;
270
c0b9d3f7
VC		 271static int qla4xxx_send_ping(struct Scsi_Host *shost, uint32_t iface_num,
272 uint32_t iface_type, uint32_t payload_size,
273 uint32_t pid, struct sockaddr *dst_addr)
274{
275 struct scsi_qla_host *ha = to_qla_host(shost);
276 struct sockaddr_in *addr;
277 struct sockaddr_in6 *addr6;
278 uint32_t options = 0;
279 uint8_t ipaddr[IPv6_ADDR_LEN];
280 int rval;
281
282 memset(ipaddr, 0, IPv6_ADDR_LEN);
283 /* IPv4 to IPv4 */
284 if ((iface_type == ISCSI_IFACE_TYPE_IPV4) &&
285 (dst_addr->sa_family == AF_INET)) {
286 addr = (struct sockaddr_in *)dst_addr;
287 memcpy(ipaddr, &addr->sin_addr.s_addr, IP_ADDR_LEN);
288 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv4 Ping src: %pI4 "
289 "dest: %pI4\n", __func__,
290 &ha->ip_config.ip_address, ipaddr));
291 rval = qla4xxx_ping_iocb(ha, options, payload_size, pid,
292 ipaddr);
293 if (rval)
294 rval = -EINVAL;
295 } else if ((iface_type == ISCSI_IFACE_TYPE_IPV6) &&
296 (dst_addr->sa_family == AF_INET6)) {
297 /* IPv6 to IPv6 */
298 addr6 = (struct sockaddr_in6 *)dst_addr;
299 memcpy(ipaddr, &addr6->sin6_addr.in6_u.u6_addr8, IPv6_ADDR_LEN);
300
301 options |= PING_IPV6_PROTOCOL_ENABLE;
302
303 /* Ping using LinkLocal address */
304 if ((iface_num == 0) || (iface_num == 1)) {
305 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: LinkLocal Ping "
306 "src: %pI6 dest: %pI6\n", __func__,
307 &ha->ip_config.ipv6_link_local_addr,
308 ipaddr));
309 options |= PING_IPV6_LINKLOCAL_ADDR;
310 rval = qla4xxx_ping_iocb(ha, options, payload_size,
311 pid, ipaddr);
312 } else {
313 ql4_printk(KERN_WARNING, ha, "%s: iface num = %d "
314 "not supported\n", __func__, iface_num);
315 rval = -ENOSYS;
316 goto exit_send_ping;
317 }
318
319 /*
320 * If ping using LinkLocal address fails, try ping using
321 * IPv6 address
322 */
323 if (rval != QLA_SUCCESS) {
324 options &= ~PING_IPV6_LINKLOCAL_ADDR;
325 if (iface_num == 0) {
326 options |= PING_IPV6_ADDR0;
327 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv6 "
328 "Ping src: %pI6 "
329 "dest: %pI6\n", __func__,
330 &ha->ip_config.ipv6_addr0,
331 ipaddr));
332 } else if (iface_num == 1) {
333 options |= PING_IPV6_ADDR1;
334 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv6 "
335 "Ping src: %pI6 "
336 "dest: %pI6\n", __func__,
337 &ha->ip_config.ipv6_addr1,
338 ipaddr));
339 }
340 rval = qla4xxx_ping_iocb(ha, options, payload_size,
341 pid, ipaddr);
342 if (rval)
343 rval = -EINVAL;
344 }
345 } else
346 rval = -ENOSYS;
347exit_send_ping:
348 return rval;
349}
350
5e9bcec7 351static umode_t qla4_attr_is_visible(int param_type, int param)
3128c6c7
MC		 352{
353 switch (param_type) {
f27fb2ef
MC		 354 case ISCSI_HOST_PARAM:
355 switch (param) {
356 case ISCSI_HOST_PARAM_HWADDRESS:
357 case ISCSI_HOST_PARAM_IPADDRESS:
358 case ISCSI_HOST_PARAM_INITIATOR_NAME:
3254dbe9
VC		 359 case ISCSI_HOST_PARAM_PORT_STATE:
360 case ISCSI_HOST_PARAM_PORT_SPEED:
f27fb2ef
MC		 361 return S_IRUGO;
362 default:
363 return 0;
364 }
3128c6c7
MC		 365 case ISCSI_PARAM:
366 switch (param) {
590134fa
MC		 367 case ISCSI_PARAM_PERSISTENT_ADDRESS:
368 case ISCSI_PARAM_PERSISTENT_PORT:
3128c6c7
MC		 369 case ISCSI_PARAM_CONN_ADDRESS:
370 case ISCSI_PARAM_CONN_PORT:
1d063c17
MC		 371 case ISCSI_PARAM_TARGET_NAME:
372 case ISCSI_PARAM_TPGT:
373 case ISCSI_PARAM_TARGET_ALIAS:
b3a271a9
MR		 374 case ISCSI_PARAM_MAX_BURST:
375 case ISCSI_PARAM_MAX_R2T:
376 case ISCSI_PARAM_FIRST_BURST:
377 case ISCSI_PARAM_MAX_RECV_DLENGTH:
378 case ISCSI_PARAM_MAX_XMIT_DLENGTH:
de37920b 379 case ISCSI_PARAM_IFACE_NAME:
fca9f04d
MC		 380 case ISCSI_PARAM_CHAP_OUT_IDX:
381 case ISCSI_PARAM_CHAP_IN_IDX:
382 case ISCSI_PARAM_USERNAME:
383 case ISCSI_PARAM_PASSWORD:
384 case ISCSI_PARAM_USERNAME_IN:
385 case ISCSI_PARAM_PASSWORD_IN:
8cc91d42
AC		 386 case ISCSI_PARAM_AUTO_SND_TGT_DISABLE:
387 case ISCSI_PARAM_DISCOVERY_SESS:
388 case ISCSI_PARAM_PORTAL_TYPE:
389 case ISCSI_PARAM_CHAP_AUTH_EN:
390 case ISCSI_PARAM_DISCOVERY_LOGOUT_EN:
391 case ISCSI_PARAM_BIDI_CHAP_EN:
392 case ISCSI_PARAM_DISCOVERY_AUTH_OPTIONAL:
393 case ISCSI_PARAM_DEF_TIME2WAIT:
394 case ISCSI_PARAM_DEF_TIME2RETAIN:
395 case ISCSI_PARAM_HDRDGST_EN:
396 case ISCSI_PARAM_DATADGST_EN:
397 case ISCSI_PARAM_INITIAL_R2T_EN:
398 case ISCSI_PARAM_IMM_DATA_EN:
399 case ISCSI_PARAM_PDU_INORDER_EN:
400 case ISCSI_PARAM_DATASEQ_INORDER_EN:
401 case ISCSI_PARAM_MAX_SEGMENT_SIZE:
402 case ISCSI_PARAM_TCP_TIMESTAMP_STAT:
403 case ISCSI_PARAM_TCP_WSF_DISABLE:
404 case ISCSI_PARAM_TCP_NAGLE_DISABLE:
405 case ISCSI_PARAM_TCP_TIMER_SCALE:
406 case ISCSI_PARAM_TCP_TIMESTAMP_EN:
407 case ISCSI_PARAM_TCP_XMIT_WSF:
408 case ISCSI_PARAM_TCP_RECV_WSF:
409 case ISCSI_PARAM_IP_FRAGMENT_DISABLE:
410 case ISCSI_PARAM_IPV4_TOS:
411 case ISCSI_PARAM_IPV6_TC:
412 case ISCSI_PARAM_IPV6_FLOW_LABEL:
413 case ISCSI_PARAM_IS_FW_ASSIGNED_IPV6:
414 case ISCSI_PARAM_KEEPALIVE_TMO:
415 case ISCSI_PARAM_LOCAL_PORT:
416 case ISCSI_PARAM_ISID:
417 case ISCSI_PARAM_TSID:
418 case ISCSI_PARAM_DEF_TASKMGMT_TMO:
419 case ISCSI_PARAM_ERL:
420 case ISCSI_PARAM_STATSN:
421 case ISCSI_PARAM_EXP_STATSN:
422 case ISCSI_PARAM_DISCOVERY_PARENT_IDX:
423 case ISCSI_PARAM_DISCOVERY_PARENT_TYPE:
fb734ee3 424 case ISCSI_PARAM_LOCAL_IPADDR:
3128c6c7
MC		 425 return S_IRUGO;
426 default:
427 return 0;
428 }
b78dbba0
MC		 429 case ISCSI_NET_PARAM:
430 switch (param) {
431 case ISCSI_NET_PARAM_IPV4_ADDR:
432 case ISCSI_NET_PARAM_IPV4_SUBNET:
433 case ISCSI_NET_PARAM_IPV4_GW:
434 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
435 case ISCSI_NET_PARAM_IFACE_ENABLE:
436 case ISCSI_NET_PARAM_IPV6_LINKLOCAL:
437 case ISCSI_NET_PARAM_IPV6_ADDR:
438 case ISCSI_NET_PARAM_IPV6_ROUTER:
439 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG:
440 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG:
6ac73e8c
VC		 441 case ISCSI_NET_PARAM_VLAN_ID:
442 case ISCSI_NET_PARAM_VLAN_PRIORITY:
443 case ISCSI_NET_PARAM_VLAN_ENABLED:
943c157b 444 case ISCSI_NET_PARAM_MTU:
2ada7fc5 445 case ISCSI_NET_PARAM_PORT:
f8e93412
HZ		 446 case ISCSI_NET_PARAM_IPADDR_STATE:
447 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_STATE:
448 case ISCSI_NET_PARAM_IPV6_ROUTER_STATE:
449 case ISCSI_NET_PARAM_DELAYED_ACK_EN:
450 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE:
451 case ISCSI_NET_PARAM_TCP_WSF_DISABLE:
452 case ISCSI_NET_PARAM_TCP_WSF:
453 case ISCSI_NET_PARAM_TCP_TIMER_SCALE:
454 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN:
455 case ISCSI_NET_PARAM_CACHE_ID:
456 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN:
457 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN:
458 case ISCSI_NET_PARAM_IPV4_TOS_EN:
459 case ISCSI_NET_PARAM_IPV4_TOS:
460 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN:
461 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN:
462 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID:
463 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN:
464 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN:
465 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID:
466 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN:
467 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE:
468 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN:
469 case ISCSI_NET_PARAM_REDIRECT_EN:
470 case ISCSI_NET_PARAM_IPV4_TTL:
471 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN:
472 case ISCSI_NET_PARAM_IPV6_MLD_EN:
473 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL:
474 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS:
475 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT:
476 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO:
477 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME:
478 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO:
479 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT:
480 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU:
481 return S_IRUGO;
482 default:
483 return 0;
484 }
485 case ISCSI_IFACE_PARAM:
486 switch (param) {
487 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO:
488 case ISCSI_IFACE_PARAM_HDRDGST_EN:
489 case ISCSI_IFACE_PARAM_DATADGST_EN:
490 case ISCSI_IFACE_PARAM_IMM_DATA_EN:
491 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN:
492 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN:
493 case ISCSI_IFACE_PARAM_PDU_INORDER_EN:
494 case ISCSI_IFACE_PARAM_ERL:
495 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH:
496 case ISCSI_IFACE_PARAM_FIRST_BURST:
497 case ISCSI_IFACE_PARAM_MAX_R2T:
498 case ISCSI_IFACE_PARAM_MAX_BURST:
499 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN:
500 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN:
501 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL:
502 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN:
503 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN:
504 case ISCSI_IFACE_PARAM_INITIATOR_NAME:
b78dbba0
MC		 505 return S_IRUGO;
506 default:
507 return 0;
508 }
1e9e2be3
AC		 509 case ISCSI_FLASHNODE_PARAM:
510 switch (param) {
511 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6:
512 case ISCSI_FLASHNODE_PORTAL_TYPE:
513 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE:
514 case ISCSI_FLASHNODE_DISCOVERY_SESS:
515 case ISCSI_FLASHNODE_ENTRY_EN:
516 case ISCSI_FLASHNODE_HDR_DGST_EN:
517 case ISCSI_FLASHNODE_DATA_DGST_EN:
518 case ISCSI_FLASHNODE_IMM_DATA_EN:
519 case ISCSI_FLASHNODE_INITIAL_R2T_EN:
520 case ISCSI_FLASHNODE_DATASEQ_INORDER:
521 case ISCSI_FLASHNODE_PDU_INORDER:
522 case ISCSI_FLASHNODE_CHAP_AUTH_EN:
523 case ISCSI_FLASHNODE_SNACK_REQ_EN:
524 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN:
525 case ISCSI_FLASHNODE_BIDI_CHAP_EN:
526 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL:
527 case ISCSI_FLASHNODE_ERL:
528 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT:
529 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE:
530 case ISCSI_FLASHNODE_TCP_WSF_DISABLE:
531 case ISCSI_FLASHNODE_TCP_TIMER_SCALE:
532 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN:
533 case ISCSI_FLASHNODE_IP_FRAG_DISABLE:
534 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH:
535 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH:
536 case ISCSI_FLASHNODE_FIRST_BURST:
537 case ISCSI_FLASHNODE_DEF_TIME2WAIT:
538 case ISCSI_FLASHNODE_DEF_TIME2RETAIN:
539 case ISCSI_FLASHNODE_MAX_R2T:
540 case ISCSI_FLASHNODE_KEEPALIVE_TMO:
541 case ISCSI_FLASHNODE_ISID:
542 case ISCSI_FLASHNODE_TSID:
543 case ISCSI_FLASHNODE_PORT:
544 case ISCSI_FLASHNODE_MAX_BURST:
545 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO:
546 case ISCSI_FLASHNODE_IPADDR:
547 case ISCSI_FLASHNODE_ALIAS:
548 case ISCSI_FLASHNODE_REDIRECT_IPADDR:
549 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE:
550 case ISCSI_FLASHNODE_LOCAL_PORT:
551 case ISCSI_FLASHNODE_IPV4_TOS:
552 case ISCSI_FLASHNODE_IPV6_TC:
553 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL:
554 case ISCSI_FLASHNODE_NAME:
555 case ISCSI_FLASHNODE_TPGT:
556 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6:
557 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX:
558 case ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE:
559 case ISCSI_FLASHNODE_TCP_XMIT_WSF:
560 case ISCSI_FLASHNODE_TCP_RECV_WSF:
561 case ISCSI_FLASHNODE_CHAP_OUT_IDX:
562 case ISCSI_FLASHNODE_USERNAME:
563 case ISCSI_FLASHNODE_PASSWORD:
564 case ISCSI_FLASHNODE_STATSN:
565 case ISCSI_FLASHNODE_EXP_STATSN:
566 case ISCSI_FLASHNODE_IS_BOOT_TGT:
567 return S_IRUGO;
568 default:
569 return 0;
570 }
3128c6c7
MC		 571 }
572
573 return 0;
574}
575
ea507a25
AC		 576/**
577 * qla4xxx_create chap_list - Create CHAP list from FLASH
578 * @ha: pointer to adapter structure
579 *
580 * Read flash and make a list of CHAP entries, during login when a CHAP entry
581 * is received, it will be checked in this list. If entry exist then the CHAP
582 * entry index is set in the DDB. If CHAP entry does not exist in this list
583 * then a new entry is added in FLASH in CHAP table and the index obtained is
584 * used in the DDB.
585 **/
586static void qla4xxx_create_chap_list(struct scsi_qla_host *ha)
587{
588 int rval = 0;
589 uint8_t *chap_flash_data = NULL;
590 uint32_t offset;
591 dma_addr_t chap_dma;
592 uint32_t chap_size = 0;
593
594 if (is_qla40XX(ha))
595 chap_size = MAX_CHAP_ENTRIES_40XX *
596 sizeof(struct ql4_chap_table);
597 else /* Single region contains CHAP info for both
598 * ports which is divided into half for each port.
599 */
600 chap_size = ha->hw.flt_chap_size / 2;
601
602 chap_flash_data = dma_alloc_coherent(&ha->pdev->dev, chap_size,
603 &chap_dma, GFP_KERNEL);
604 if (!chap_flash_data) {
605 ql4_printk(KERN_ERR, ha, "No memory for chap_flash_data\n");
606 return;
607 }
608
609 if (is_qla40XX(ha)) {
610 offset = FLASH_CHAP_OFFSET;
611 } else {
612 offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2);
613 if (ha->port_num == 1)
614 offset += chap_size;
615 }
616
617 rval = qla4xxx_get_flash(ha, chap_dma, offset, chap_size);
618 if (rval != QLA_SUCCESS)
619 goto exit_chap_list;
620
621 if (ha->chap_list == NULL)
622 ha->chap_list = vmalloc(chap_size);
623 if (ha->chap_list == NULL) {
624 ql4_printk(KERN_ERR, ha, "No memory for ha->chap_list\n");
625 goto exit_chap_list;
626 }
627
628 memset(ha->chap_list, 0, chap_size);
629 memcpy(ha->chap_list, chap_flash_data, chap_size);
630
631exit_chap_list:
632 dma_free_coherent(&ha->pdev->dev, chap_size, chap_flash_data, chap_dma);
633}
634
26ffd7b4
AC		 635static int qla4xxx_get_chap_by_index(struct scsi_qla_host *ha,
636 int16_t chap_index,
637 struct ql4_chap_table **chap_entry)
638{
639 int rval = QLA_ERROR;
640 int max_chap_entries;
641
642 if (!ha->chap_list) {
643 ql4_printk(KERN_ERR, ha, "CHAP table cache is empty!\n");
644 rval = QLA_ERROR;
645 goto exit_get_chap;
646 }
647
648 if (is_qla80XX(ha))
649 max_chap_entries = (ha->hw.flt_chap_size / 2) /
650 sizeof(struct ql4_chap_table);
651 else
652 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
653
654 if (chap_index > max_chap_entries) {
655 ql4_printk(KERN_ERR, ha, "Invalid Chap index\n");
656 rval = QLA_ERROR;
657 goto exit_get_chap;
658 }
659
660 *chap_entry = (struct ql4_chap_table *)ha->chap_list + chap_index;
661 if ((*chap_entry)->cookie !=
662 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) {
663 rval = QLA_ERROR;
664 *chap_entry = NULL;
665 } else {
666 rval = QLA_SUCCESS;
667 }
668
669exit_get_chap:
670 return rval;
671}
672
673/**
674 * qla4xxx_find_free_chap_index - Find the first free chap index
675 * @ha: pointer to adapter structure
676 * @chap_index: CHAP index to be returned
677 *
678 * Find the first free chap index available in the chap table
679 *
680 * Note: Caller should acquire the chap lock before getting here.
681 **/
682static int qla4xxx_find_free_chap_index(struct scsi_qla_host *ha,
683 uint16_t *chap_index)
684{
685 int i, rval;
686 int free_index = -1;
687 int max_chap_entries = 0;
688 struct ql4_chap_table *chap_table;
689
690 if (is_qla80XX(ha))
691 max_chap_entries = (ha->hw.flt_chap_size / 2) /
692 sizeof(struct ql4_chap_table);
693 else
694 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
695
696 if (!ha->chap_list) {
697 ql4_printk(KERN_ERR, ha, "CHAP table cache is empty!\n");
698 rval = QLA_ERROR;
699 goto exit_find_chap;
700 }
701
702 for (i = 0; i < max_chap_entries; i++) {
703 chap_table = (struct ql4_chap_table *)ha->chap_list + i;
704
705 if ((chap_table->cookie !=
706 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) &&
707 (i > MAX_RESRV_CHAP_IDX)) {
708 free_index = i;
709 break;
710 }
711 }
712
713 if (free_index != -1) {
714 *chap_index = free_index;
715 rval = QLA_SUCCESS;
716 } else {
717 rval = QLA_ERROR;
718 }
719
720exit_find_chap:
721 return rval;
722}
723
376738af
NJ		 724static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx,
725 uint32_t *num_entries, char *buf)
726{
727 struct scsi_qla_host *ha = to_qla_host(shost);
728 struct ql4_chap_table *chap_table;
729 struct iscsi_chap_rec *chap_rec;
730 int max_chap_entries = 0;
731 int valid_chap_entries = 0;
732 int ret = 0, i;
733
d11b0ca3 734 if (is_qla80XX(ha))
376738af
NJ		 735 max_chap_entries = (ha->hw.flt_chap_size / 2) /
736 sizeof(struct ql4_chap_table);
737 else
738 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
739
740 ql4_printk(KERN_INFO, ha, "%s: num_entries = %d, CHAP idx = %d\n",
741 __func__, *num_entries, chap_tbl_idx);
742
743 if (!buf) {
744 ret = -ENOMEM;
745 goto exit_get_chap_list;
746 }
747
ea507a25
AC		 748 qla4xxx_create_chap_list(ha);
749
376738af
NJ		 750 chap_rec = (struct iscsi_chap_rec *) buf;
751 mutex_lock(&ha->chap_sem);
752 for (i = chap_tbl_idx; i < max_chap_entries; i++) {
753 chap_table = (struct ql4_chap_table *)ha->chap_list + i;
754 if (chap_table->cookie !=
755 __constant_cpu_to_le16(CHAP_VALID_COOKIE))
756 continue;
757
758 chap_rec->chap_tbl_idx = i;
759 strncpy(chap_rec->username, chap_table->name,
760 ISCSI_CHAP_AUTH_NAME_MAX_LEN);
761 strncpy(chap_rec->password, chap_table->secret,
762 QL4_CHAP_MAX_SECRET_LEN);
763 chap_rec->password_length = chap_table->secret_len;
764
765 if (chap_table->flags & BIT_7) /* local */
766 chap_rec->chap_type = CHAP_TYPE_OUT;
767
768 if (chap_table->flags & BIT_6) /* peer */
769 chap_rec->chap_type = CHAP_TYPE_IN;
770
771 chap_rec++;
772
773 valid_chap_entries++;
774 if (valid_chap_entries == *num_entries)
775 break;
776 else
777 continue;
778 }
779 mutex_unlock(&ha->chap_sem);
780
781exit_get_chap_list:
782 ql4_printk(KERN_INFO, ha, "%s: Valid CHAP Entries = %d\n",
783 __func__, valid_chap_entries);
784 *num_entries = valid_chap_entries;
785 return ret;
786}
787
788static int __qla4xxx_is_chap_active(struct device *dev, void *data)
789{
790 int ret = 0;
791 uint16_t *chap_tbl_idx = (uint16_t *) data;
792 struct iscsi_cls_session *cls_session;
793 struct iscsi_session *sess;
794 struct ddb_entry *ddb_entry;
795
796 if (!iscsi_is_session_dev(dev))
797 goto exit_is_chap_active;
798
799 cls_session = iscsi_dev_to_session(dev);
800 sess = cls_session->dd_data;
801 ddb_entry = sess->dd_data;
802
803 if (iscsi_session_chkready(cls_session))
804 goto exit_is_chap_active;
805
806 if (ddb_entry->chap_tbl_idx == *chap_tbl_idx)
807 ret = 1;
808
809exit_is_chap_active:
810 return ret;
811}
812
813static int qla4xxx_is_chap_active(struct Scsi_Host *shost,
814 uint16_t chap_tbl_idx)
815{
816 int ret = 0;
817
818 ret = device_for_each_child(&shost->shost_gendev, &chap_tbl_idx,
819 __qla4xxx_is_chap_active);
820
821 return ret;
822}
823
824static int qla4xxx_delete_chap(struct Scsi_Host *shost, uint16_t chap_tbl_idx)
825{
826 struct scsi_qla_host *ha = to_qla_host(shost);
827 struct ql4_chap_table *chap_table;
828 dma_addr_t chap_dma;
829 int max_chap_entries = 0;
830 uint32_t offset = 0;
831 uint32_t chap_size;
832 int ret = 0;
833
834 chap_table = dma_pool_alloc(ha->chap_dma_pool, GFP_KERNEL, &chap_dma);
835 if (chap_table == NULL)
836 return -ENOMEM;
837
838 memset(chap_table, 0, sizeof(struct ql4_chap_table));
839
d11b0ca3 840 if (is_qla80XX(ha))
376738af
NJ		 841 max_chap_entries = (ha->hw.flt_chap_size / 2) /
842 sizeof(struct ql4_chap_table);
843 else
844 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
845
846 if (chap_tbl_idx > max_chap_entries) {
847 ret = -EINVAL;
848 goto exit_delete_chap;
849 }
850
851 /* Check if chap index is in use.
852 * If chap is in use don't delet chap entry */
853 ret = qla4xxx_is_chap_active(shost, chap_tbl_idx);
854 if (ret) {
855 ql4_printk(KERN_INFO, ha, "CHAP entry %d is in use, cannot "
856 "delete from flash\n", chap_tbl_idx);
857 ret = -EBUSY;
858 goto exit_delete_chap;
859 }
860
861 chap_size = sizeof(struct ql4_chap_table);
862 if (is_qla40XX(ha))
863 offset = FLASH_CHAP_OFFSET | (chap_tbl_idx * chap_size);
864 else {
865 offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2);
866 /* flt_chap_size is CHAP table size for both ports
867 * so divide it by 2 to calculate the offset for second port
868 */
869 if (ha->port_num == 1)
870 offset += (ha->hw.flt_chap_size / 2);
871 offset += (chap_tbl_idx * chap_size);
872 }
873
874 ret = qla4xxx_get_flash(ha, chap_dma, offset, chap_size);
875 if (ret != QLA_SUCCESS) {
876 ret = -EINVAL;
877 goto exit_delete_chap;
878 }
879
880 DEBUG2(ql4_printk(KERN_INFO, ha, "Chap Cookie: x%x\n",
881 __le16_to_cpu(chap_table->cookie)));
882
883 if (__le16_to_cpu(chap_table->cookie) != CHAP_VALID_COOKIE) {
884 ql4_printk(KERN_ERR, ha, "No valid chap entry found\n");
885 goto exit_delete_chap;
886 }
887
888 chap_table->cookie = __constant_cpu_to_le16(0xFFFF);
889
890 offset = FLASH_CHAP_OFFSET |
891 (chap_tbl_idx * sizeof(struct ql4_chap_table));
892 ret = qla4xxx_set_flash(ha, chap_dma, offset, chap_size,
893 FLASH_OPT_RMW_COMMIT);
894 if (ret == QLA_SUCCESS && ha->chap_list) {
895 mutex_lock(&ha->chap_sem);
896 /* Update ha chap_list cache */
897 memcpy((struct ql4_chap_table *)ha->chap_list + chap_tbl_idx,
898 chap_table, sizeof(struct ql4_chap_table));
899 mutex_unlock(&ha->chap_sem);
900 }
901 if (ret != QLA_SUCCESS)
902 ret = -EINVAL;
903
904exit_delete_chap:
905 dma_pool_free(ha->chap_dma_pool, chap_table, chap_dma);
906 return ret;
907}
908
26ffd7b4
AC		 909/**
910 * qla4xxx_set_chap_entry - Make chap entry with given information
911 * @shost: pointer to host
912 * @data: chap info - credentials, index and type to make chap entry
913 * @len: length of data
914 *
915 * Add or update chap entry with the given information
916 **/
917static int qla4xxx_set_chap_entry(struct Scsi_Host *shost, void *data, int len)
918{
919 struct scsi_qla_host *ha = to_qla_host(shost);
920 struct iscsi_chap_rec chap_rec;
921 struct ql4_chap_table *chap_entry = NULL;
922 struct iscsi_param_info *param_info;
923 struct nlattr *attr;
924 int max_chap_entries = 0;
925 int type;
926 int rem = len;
927 int rc = 0;
3c60cfd7 928 int size;
26ffd7b4
AC		 929
930 memset(&chap_rec, 0, sizeof(chap_rec));
931
932 nla_for_each_attr(attr, data, len, rem) {
933 param_info = nla_data(attr);
934
935 switch (param_info->param) {
936 case ISCSI_CHAP_PARAM_INDEX:
937 chap_rec.chap_tbl_idx = *(uint16_t *)param_info->value;
938 break;
939 case ISCSI_CHAP_PARAM_CHAP_TYPE:
940 chap_rec.chap_type = param_info->value[0];
941 break;
942 case ISCSI_CHAP_PARAM_USERNAME:
3c60cfd7
DC		 943 size = min_t(size_t, sizeof(chap_rec.username),
944 param_info->len);
945 memcpy(chap_rec.username, param_info->value, size);
26ffd7b4
AC		 946 break;
947 case ISCSI_CHAP_PARAM_PASSWORD:
3c60cfd7
DC		 948 size = min_t(size_t, sizeof(chap_rec.password),
949 param_info->len);
950 memcpy(chap_rec.password, param_info->value, size);
26ffd7b4
AC		 951 break;
952 case ISCSI_CHAP_PARAM_PASSWORD_LEN:
953 chap_rec.password_length = param_info->value[0];
954 break;
955 default:
956 ql4_printk(KERN_ERR, ha,
957 "%s: No such sysfs attribute\n", __func__);
958 rc = -ENOSYS;
959 goto exit_set_chap;
960 };
961 }
962
963 if (chap_rec.chap_type == CHAP_TYPE_IN)
964 type = BIDI_CHAP;
965 else
966 type = LOCAL_CHAP;
967
968 if (is_qla80XX(ha))
969 max_chap_entries = (ha->hw.flt_chap_size / 2) /
970 sizeof(struct ql4_chap_table);
971 else
972 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
973
974 mutex_lock(&ha->chap_sem);
975 if (chap_rec.chap_tbl_idx < max_chap_entries) {
976 rc = qla4xxx_get_chap_by_index(ha, chap_rec.chap_tbl_idx,
977 &chap_entry);
978 if (!rc) {
979 if (!(type == qla4xxx_get_chap_type(chap_entry))) {
980 ql4_printk(KERN_INFO, ha,
981 "Type mismatch for CHAP entry %d\n",
982 chap_rec.chap_tbl_idx);
983 rc = -EINVAL;
984 goto exit_unlock_chap;
985 }
986
987 /* If chap index is in use then don't modify it */
988 rc = qla4xxx_is_chap_active(shost,
989 chap_rec.chap_tbl_idx);
990 if (rc) {
991 ql4_printk(KERN_INFO, ha,
992 "CHAP entry %d is in use\n",
993 chap_rec.chap_tbl_idx);
994 rc = -EBUSY;
995 goto exit_unlock_chap;
996 }
997 }
998 } else {
999 rc = qla4xxx_find_free_chap_index(ha, &chap_rec.chap_tbl_idx);
1000 if (rc) {
1001 ql4_printk(KERN_INFO, ha, "CHAP entry not available\n");
1002 rc = -EBUSY;
1003 goto exit_unlock_chap;
1004 }
1005 }
1006
1007 rc = qla4xxx_set_chap(ha, chap_rec.username, chap_rec.password,
1008 chap_rec.chap_tbl_idx, type);
1009
1010exit_unlock_chap:
1011 mutex_unlock(&ha->chap_sem);
1012
1013exit_set_chap:
1014 return rc;
1015}
1016
4161cee5
LC		 1017
1018static int qla4xxx_get_host_stats(struct Scsi_Host *shost, char *buf, int len)
1019{
1020 struct scsi_qla_host *ha = to_qla_host(shost);
1021 struct iscsi_offload_host_stats *host_stats = NULL;
1022 int host_stats_size;
1023 int ret = 0;
1024 int ddb_idx = 0;
1025 struct ql_iscsi_stats *ql_iscsi_stats = NULL;
1026 int stats_size;
1027 dma_addr_t iscsi_stats_dma;
1028
1029 DEBUG2(ql4_printk(KERN_INFO, ha, "Func: %s\n", __func__));
1030
1031 host_stats_size = sizeof(struct iscsi_offload_host_stats);
1032
1033 if (host_stats_size != len) {
1034 ql4_printk(KERN_INFO, ha, "%s: host_stats size mismatch expected = %d, is = %d\n",
1035 __func__, len, host_stats_size);
1036 ret = -EINVAL;
1037 goto exit_host_stats;
1038 }
1039 host_stats = (struct iscsi_offload_host_stats *)buf;
1040
1041 if (!buf) {
1042 ret = -ENOMEM;
1043 goto exit_host_stats;
1044 }
1045
1046 stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats));
1047
1048 ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size,
1049 &iscsi_stats_dma, GFP_KERNEL);
1050 if (!ql_iscsi_stats) {
1051 ql4_printk(KERN_ERR, ha,
1052 "Unable to allocate memory for iscsi stats\n");
1053 goto exit_host_stats;
1054 }
1055
1056 ret = qla4xxx_get_mgmt_data(ha, ddb_idx, stats_size,
1057 iscsi_stats_dma);
1058 if (ret != QLA_SUCCESS) {
1059 ql4_printk(KERN_ERR, ha,
1060 "Unable to retrieve iscsi stats\n");
1061 goto exit_host_stats;
1062 }
1063 host_stats->mactx_frames = le64_to_cpu(ql_iscsi_stats->mac_tx_frames);
1064 host_stats->mactx_bytes = le64_to_cpu(ql_iscsi_stats->mac_tx_bytes);
1065 host_stats->mactx_multicast_frames =
1066 le64_to_cpu(ql_iscsi_stats->mac_tx_multicast_frames);
1067 host_stats->mactx_broadcast_frames =
1068 le64_to_cpu(ql_iscsi_stats->mac_tx_broadcast_frames);
1069 host_stats->mactx_pause_frames =
1070 le64_to_cpu(ql_iscsi_stats->mac_tx_pause_frames);
1071 host_stats->mactx_control_frames =
1072 le64_to_cpu(ql_iscsi_stats->mac_tx_control_frames);
1073 host_stats->mactx_deferral =
1074 le64_to_cpu(ql_iscsi_stats->mac_tx_deferral);
1075 host_stats->mactx_excess_deferral =
1076 le64_to_cpu(ql_iscsi_stats->mac_tx_excess_deferral);
1077 host_stats->mactx_late_collision =
1078 le64_to_cpu(ql_iscsi_stats->mac_tx_late_collision);
1079 host_stats->mactx_abort = le64_to_cpu(ql_iscsi_stats->mac_tx_abort);
1080 host_stats->mactx_single_collision =
1081 le64_to_cpu(ql_iscsi_stats->mac_tx_single_collision);
1082 host_stats->mactx_multiple_collision =
1083 le64_to_cpu(ql_iscsi_stats->mac_tx_multiple_collision);
1084 host_stats->mactx_collision =
1085 le64_to_cpu(ql_iscsi_stats->mac_tx_collision);
1086 host_stats->mactx_frames_dropped =
1087 le64_to_cpu(ql_iscsi_stats->mac_tx_frames_dropped);
1088 host_stats->mactx_jumbo_frames =
1089 le64_to_cpu(ql_iscsi_stats->mac_tx_jumbo_frames);
1090 host_stats->macrx_frames = le64_to_cpu(ql_iscsi_stats->mac_rx_frames);
1091 host_stats->macrx_bytes = le64_to_cpu(ql_iscsi_stats->mac_rx_bytes);
1092 host_stats->macrx_unknown_control_frames =
1093 le64_to_cpu(ql_iscsi_stats->mac_rx_unknown_control_frames);
1094 host_stats->macrx_pause_frames =
1095 le64_to_cpu(ql_iscsi_stats->mac_rx_pause_frames);
1096 host_stats->macrx_control_frames =
1097 le64_to_cpu(ql_iscsi_stats->mac_rx_control_frames);
1098 host_stats->macrx_dribble =
1099 le64_to_cpu(ql_iscsi_stats->mac_rx_dribble);
1100 host_stats->macrx_frame_length_error =
1101 le64_to_cpu(ql_iscsi_stats->mac_rx_frame_length_error);
1102 host_stats->macrx_jabber = le64_to_cpu(ql_iscsi_stats->mac_rx_jabber);
1103 host_stats->macrx_carrier_sense_error =
1104 le64_to_cpu(ql_iscsi_stats->mac_rx_carrier_sense_error);
1105 host_stats->macrx_frame_discarded =
1106 le64_to_cpu(ql_iscsi_stats->mac_rx_frame_discarded);
1107 host_stats->macrx_frames_dropped =
1108 le64_to_cpu(ql_iscsi_stats->mac_rx_frames_dropped);
1109 host_stats->mac_crc_error = le64_to_cpu(ql_iscsi_stats->mac_crc_error);
1110 host_stats->mac_encoding_error =
1111 le64_to_cpu(ql_iscsi_stats->mac_encoding_error);
1112 host_stats->macrx_length_error_large =
1113 le64_to_cpu(ql_iscsi_stats->mac_rx_length_error_large);
1114 host_stats->macrx_length_error_small =
1115 le64_to_cpu(ql_iscsi_stats->mac_rx_length_error_small);
1116 host_stats->macrx_multicast_frames =
1117 le64_to_cpu(ql_iscsi_stats->mac_rx_multicast_frames);
1118 host_stats->macrx_broadcast_frames =
1119 le64_to_cpu(ql_iscsi_stats->mac_rx_broadcast_frames);
1120 host_stats->iptx_packets = le64_to_cpu(ql_iscsi_stats->ip_tx_packets);
1121 host_stats->iptx_bytes = le64_to_cpu(ql_iscsi_stats->ip_tx_bytes);
1122 host_stats->iptx_fragments =
1123 le64_to_cpu(ql_iscsi_stats->ip_tx_fragments);
1124 host_stats->iprx_packets = le64_to_cpu(ql_iscsi_stats->ip_rx_packets);
1125 host_stats->iprx_bytes = le64_to_cpu(ql_iscsi_stats->ip_rx_bytes);
1126 host_stats->iprx_fragments =
1127 le64_to_cpu(ql_iscsi_stats->ip_rx_fragments);
1128 host_stats->ip_datagram_reassembly =
1129 le64_to_cpu(ql_iscsi_stats->ip_datagram_reassembly);
1130 host_stats->ip_invalid_address_error =
1131 le64_to_cpu(ql_iscsi_stats->ip_invalid_address_error);
1132 host_stats->ip_error_packets =
1133 le64_to_cpu(ql_iscsi_stats->ip_error_packets);
1134 host_stats->ip_fragrx_overlap =
1135 le64_to_cpu(ql_iscsi_stats->ip_fragrx_overlap);
1136 host_stats->ip_fragrx_outoforder =
1137 le64_to_cpu(ql_iscsi_stats->ip_fragrx_outoforder);
1138 host_stats->ip_datagram_reassembly_timeout =
1139 le64_to_cpu(ql_iscsi_stats->ip_datagram_reassembly_timeout);
1140 host_stats->ipv6tx_packets =
1141 le64_to_cpu(ql_iscsi_stats->ipv6_tx_packets);
1142 host_stats->ipv6tx_bytes = le64_to_cpu(ql_iscsi_stats->ipv6_tx_bytes);
1143 host_stats->ipv6tx_fragments =
1144 le64_to_cpu(ql_iscsi_stats->ipv6_tx_fragments);
1145 host_stats->ipv6rx_packets =
1146 le64_to_cpu(ql_iscsi_stats->ipv6_rx_packets);
1147 host_stats->ipv6rx_bytes = le64_to_cpu(ql_iscsi_stats->ipv6_rx_bytes);
1148 host_stats->ipv6rx_fragments =
1149 le64_to_cpu(ql_iscsi_stats->ipv6_rx_fragments);
1150 host_stats->ipv6_datagram_reassembly =
1151 le64_to_cpu(ql_iscsi_stats->ipv6_datagram_reassembly);
1152 host_stats->ipv6_invalid_address_error =
1153 le64_to_cpu(ql_iscsi_stats->ipv6_invalid_address_error);
1154 host_stats->ipv6_error_packets =
1155 le64_to_cpu(ql_iscsi_stats->ipv6_error_packets);
1156 host_stats->ipv6_fragrx_overlap =
1157 le64_to_cpu(ql_iscsi_stats->ipv6_fragrx_overlap);
1158 host_stats->ipv6_fragrx_outoforder =
1159 le64_to_cpu(ql_iscsi_stats->ipv6_fragrx_outoforder);
1160 host_stats->ipv6_datagram_reassembly_timeout =
1161 le64_to_cpu(ql_iscsi_stats->ipv6_datagram_reassembly_timeout);
1162 host_stats->tcptx_segments =
1163 le64_to_cpu(ql_iscsi_stats->tcp_tx_segments);
1164 host_stats->tcptx_bytes = le64_to_cpu(ql_iscsi_stats->tcp_tx_bytes);
1165 host_stats->tcprx_segments =
1166 le64_to_cpu(ql_iscsi_stats->tcp_rx_segments);
1167 host_stats->tcprx_byte = le64_to_cpu(ql_iscsi_stats->tcp_rx_byte);
1168 host_stats->tcp_duplicate_ack_retx =
1169 le64_to_cpu(ql_iscsi_stats->tcp_duplicate_ack_retx);
1170 host_stats->tcp_retx_timer_expired =
1171 le64_to_cpu(ql_iscsi_stats->tcp_retx_timer_expired);
1172 host_stats->tcprx_duplicate_ack =
1173 le64_to_cpu(ql_iscsi_stats->tcp_rx_duplicate_ack);
1174 host_stats->tcprx_pure_ackr =
1175 le64_to_cpu(ql_iscsi_stats->tcp_rx_pure_ackr);
1176 host_stats->tcptx_delayed_ack =
1177 le64_to_cpu(ql_iscsi_stats->tcp_tx_delayed_ack);
1178 host_stats->tcptx_pure_ack =
1179 le64_to_cpu(ql_iscsi_stats->tcp_tx_pure_ack);
1180 host_stats->tcprx_segment_error =
1181 le64_to_cpu(ql_iscsi_stats->tcp_rx_segment_error);
1182 host_stats->tcprx_segment_outoforder =
1183 le64_to_cpu(ql_iscsi_stats->tcp_rx_segment_outoforder);
1184 host_stats->tcprx_window_probe =
1185 le64_to_cpu(ql_iscsi_stats->tcp_rx_window_probe);
1186 host_stats->tcprx_window_update =
1187 le64_to_cpu(ql_iscsi_stats->tcp_rx_window_update);
1188 host_stats->tcptx_window_probe_persist =
1189 le64_to_cpu(ql_iscsi_stats->tcp_tx_window_probe_persist);
1190 host_stats->ecc_error_correction =
1191 le64_to_cpu(ql_iscsi_stats->ecc_error_correction);
1192 host_stats->iscsi_pdu_tx = le64_to_cpu(ql_iscsi_stats->iscsi_pdu_tx);
1193 host_stats->iscsi_data_bytes_tx =
1194 le64_to_cpu(ql_iscsi_stats->iscsi_data_bytes_tx);
1195 host_stats->iscsi_pdu_rx = le64_to_cpu(ql_iscsi_stats->iscsi_pdu_rx);
1196 host_stats->iscsi_data_bytes_rx =
1197 le64_to_cpu(ql_iscsi_stats->iscsi_data_bytes_rx);
1198 host_stats->iscsi_io_completed =
1199 le64_to_cpu(ql_iscsi_stats->iscsi_io_completed);
1200 host_stats->iscsi_unexpected_io_rx =
1201 le64_to_cpu(ql_iscsi_stats->iscsi_unexpected_io_rx);
1202 host_stats->iscsi_format_error =
1203 le64_to_cpu(ql_iscsi_stats->iscsi_format_error);
1204 host_stats->iscsi_hdr_digest_error =
1205 le64_to_cpu(ql_iscsi_stats->iscsi_hdr_digest_error);
1206 host_stats->iscsi_data_digest_error =
1207 le64_to_cpu(ql_iscsi_stats->iscsi_data_digest_error);
1208 host_stats->iscsi_sequence_error =
1209 le64_to_cpu(ql_iscsi_stats->iscsi_sequence_error);
1210exit_host_stats:
1211 if (ql_iscsi_stats)
1212 dma_free_coherent(&ha->pdev->dev, host_stats_size,
1213 ql_iscsi_stats, iscsi_stats_dma);
1214
1215 ql4_printk(KERN_INFO, ha, "%s: Get host stats done\n",
1216 __func__);
1217 return ret;
1218}
1219
ed1086e0
VC		 1220static int qla4xxx_get_iface_param(struct iscsi_iface *iface,
1221 enum iscsi_param_type param_type,
1222 int param, char *buf)
1223{
1224 struct Scsi_Host *shost = iscsi_iface_to_shost(iface);
1225 struct scsi_qla_host *ha = to_qla_host(shost);
f8e93412
HZ		 1226 int ival;
1227 char *pval = NULL;
ed1086e0
VC		 1228 int len = -ENOSYS;
1229
f8e93412
HZ		 1230 if (param_type == ISCSI_NET_PARAM) {
1231 switch (param) {
1232 case ISCSI_NET_PARAM_IPV4_ADDR:
1233 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address);
1234 break;
1235 case ISCSI_NET_PARAM_IPV4_SUBNET:
1236 len = sprintf(buf, "%pI4\n",
1237 &ha->ip_config.subnet_mask);
1238 break;
1239 case ISCSI_NET_PARAM_IPV4_GW:
1240 len = sprintf(buf, "%pI4\n", &ha->ip_config.gateway);
1241 break;
1242 case ISCSI_NET_PARAM_IFACE_ENABLE:
1243 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1244 OP_STATE(ha->ip_config.ipv4_options,
1245 IPOPT_IPV4_PROTOCOL_ENABLE, pval);
1246 } else {
1247 OP_STATE(ha->ip_config.ipv6_options,
1248 IPV6_OPT_IPV6_PROTOCOL_ENABLE, pval);
1249 }
ed1086e0 1250
f8e93412
HZ		 1251 len = sprintf(buf, "%s\n", pval);
1252 break;
1253 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
ed1086e0 1254 len = sprintf(buf, "%s\n",
f8e93412
HZ		 1255 (ha->ip_config.tcp_options &
1256 TCPOPT_DHCP_ENABLE) ?
1257 "dhcp" : "static");
1258 break;
1259 case ISCSI_NET_PARAM_IPV6_ADDR:
1260 if (iface->iface_num == 0)
1261 len = sprintf(buf, "%pI6\n",
1262 &ha->ip_config.ipv6_addr0);
1263 if (iface->iface_num == 1)
1264 len = sprintf(buf, "%pI6\n",
1265 &ha->ip_config.ipv6_addr1);
1266 break;
1267 case ISCSI_NET_PARAM_IPV6_LINKLOCAL:
1268 len = sprintf(buf, "%pI6\n",
1269 &ha->ip_config.ipv6_link_local_addr);
1270 break;
1271 case ISCSI_NET_PARAM_IPV6_ROUTER:
1272 len = sprintf(buf, "%pI6\n",
1273 &ha->ip_config.ipv6_default_router_addr);
1274 break;
1275 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG:
1276 pval = (ha->ip_config.ipv6_addl_options &
1277 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE) ?
1278 "nd" : "static";
1279
1280 len = sprintf(buf, "%s\n", pval);
1281 break;
1282 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG:
1283 pval = (ha->ip_config.ipv6_addl_options &
1284 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR) ?
1285 "auto" : "static";
1286
1287 len = sprintf(buf, "%s\n", pval);
1288 break;
1289 case ISCSI_NET_PARAM_VLAN_ID:
1290 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1291 ival = ha->ip_config.ipv4_vlan_tag &
1292 ISCSI_MAX_VLAN_ID;
1293 else
1294 ival = ha->ip_config.ipv6_vlan_tag &
1295 ISCSI_MAX_VLAN_ID;
1296
1297 len = sprintf(buf, "%d\n", ival);
1298 break;
1299 case ISCSI_NET_PARAM_VLAN_PRIORITY:
1300 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1301 ival = (ha->ip_config.ipv4_vlan_tag >> 13) &
1302 ISCSI_MAX_VLAN_PRIORITY;
1303 else
1304 ival = (ha->ip_config.ipv6_vlan_tag >> 13) &
1305 ISCSI_MAX_VLAN_PRIORITY;
1306
1307 len = sprintf(buf, "%d\n", ival);
1308 break;
1309 case ISCSI_NET_PARAM_VLAN_ENABLED:
1310 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1311 OP_STATE(ha->ip_config.ipv4_options,
1312 IPOPT_VLAN_TAGGING_ENABLE, pval);
1313 } else {
1314 OP_STATE(ha->ip_config.ipv6_options,
1315 IPV6_OPT_VLAN_TAGGING_ENABLE, pval);
1316 }
1317 len = sprintf(buf, "%s\n", pval);
1318 break;
1319 case ISCSI_NET_PARAM_MTU:
1320 len = sprintf(buf, "%d\n", ha->ip_config.eth_mtu_size);
1321 break;
1322 case ISCSI_NET_PARAM_PORT:
1323 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1324 len = sprintf(buf, "%d\n",
1325 ha->ip_config.ipv4_port);
1326 else
1327 len = sprintf(buf, "%d\n",
1328 ha->ip_config.ipv6_port);
1329 break;
1330 case ISCSI_NET_PARAM_IPADDR_STATE:
1331 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1332 pval = iscsi_get_ipaddress_state_name(
1333 ha->ip_config.ipv4_addr_state);
1334 } else {
1335 if (iface->iface_num == 0)
1336 pval = iscsi_get_ipaddress_state_name(
1337 ha->ip_config.ipv6_addr0_state);
1338 else if (iface->iface_num == 1)
1339 pval = iscsi_get_ipaddress_state_name(
1340 ha->ip_config.ipv6_addr1_state);
1341 }
1342
1343 len = sprintf(buf, "%s\n", pval);
1344 break;
1345 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_STATE:
1346 pval = iscsi_get_ipaddress_state_name(
1347 ha->ip_config.ipv6_link_local_state);
1348 len = sprintf(buf, "%s\n", pval);
1349 break;
1350 case ISCSI_NET_PARAM_IPV6_ROUTER_STATE:
1351 pval = iscsi_get_router_state_name(
1352 ha->ip_config.ipv6_default_router_state);
1353 len = sprintf(buf, "%s\n", pval);
1354 break;
1355 case ISCSI_NET_PARAM_DELAYED_ACK_EN:
1356 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1357 OP_STATE(~ha->ip_config.tcp_options,
1358 TCPOPT_DELAYED_ACK_DISABLE, pval);
1359 } else {
1360 OP_STATE(~ha->ip_config.ipv6_tcp_options,
1361 IPV6_TCPOPT_DELAYED_ACK_DISABLE, pval);
1362 }
1363 len = sprintf(buf, "%s\n", pval);
1364 break;
1365 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE:
1366 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1367 OP_STATE(~ha->ip_config.tcp_options,
1368 TCPOPT_NAGLE_ALGO_DISABLE, pval);
1369 } else {
1370 OP_STATE(~ha->ip_config.ipv6_tcp_options,
1371 IPV6_TCPOPT_NAGLE_ALGO_DISABLE, pval);
1372 }
1373 len = sprintf(buf, "%s\n", pval);
1374 break;
1375 case ISCSI_NET_PARAM_TCP_WSF_DISABLE:
1376 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1377 OP_STATE(~ha->ip_config.tcp_options,
1378 TCPOPT_WINDOW_SCALE_DISABLE, pval);
1379 } else {
1380 OP_STATE(~ha->ip_config.ipv6_tcp_options,
1381 IPV6_TCPOPT_WINDOW_SCALE_DISABLE,
1382 pval);
1383 }
1384 len = sprintf(buf, "%s\n", pval);
1385 break;
1386 case ISCSI_NET_PARAM_TCP_WSF:
1387 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1388 len = sprintf(buf, "%d\n",
1389 ha->ip_config.tcp_wsf);
1390 else
1391 len = sprintf(buf, "%d\n",
1392 ha->ip_config.ipv6_tcp_wsf);
1393 break;
1394 case ISCSI_NET_PARAM_TCP_TIMER_SCALE:
1395 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1396 ival = (ha->ip_config.tcp_options &
1397 TCPOPT_TIMER_SCALE) >> 1;
1398 else
1399 ival = (ha->ip_config.ipv6_tcp_options &
1400 IPV6_TCPOPT_TIMER_SCALE) >> 1;
1401
1402 len = sprintf(buf, "%d\n", ival);
1403 break;
1404 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN:
1405 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1406 OP_STATE(ha->ip_config.tcp_options,
1407 TCPOPT_TIMESTAMP_ENABLE, pval);
1408 } else {
1409 OP_STATE(ha->ip_config.ipv6_tcp_options,
1410 IPV6_TCPOPT_TIMESTAMP_EN, pval);
1411 }
1412 len = sprintf(buf, "%s\n", pval);
1413 break;
1414 case ISCSI_NET_PARAM_CACHE_ID:
1415 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1416 len = sprintf(buf, "%d\n",
1417 ha->ip_config.ipv4_cache_id);
1418 else
1419 len = sprintf(buf, "%d\n",
1420 ha->ip_config.ipv6_cache_id);
1421 break;
1422 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN:
1423 OP_STATE(ha->ip_config.tcp_options,
1424 TCPOPT_DNS_SERVER_IP_EN, pval);
1425
1426 len = sprintf(buf, "%s\n", pval);
1427 break;
1428 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN:
1429 OP_STATE(ha->ip_config.tcp_options,
1430 TCPOPT_SLP_DA_INFO_EN, pval);
1431
1432 len = sprintf(buf, "%s\n", pval);
1433 break;
1434 case ISCSI_NET_PARAM_IPV4_TOS_EN:
1435 OP_STATE(ha->ip_config.ipv4_options,
1436 IPOPT_IPV4_TOS_EN, pval);
1437
1438 len = sprintf(buf, "%s\n", pval);
1439 break;
1440 case ISCSI_NET_PARAM_IPV4_TOS:
1441 len = sprintf(buf, "%d\n", ha->ip_config.ipv4_tos);
1442 break;
1443 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN:
1444 OP_STATE(ha->ip_config.ipv4_options,
1445 IPOPT_GRAT_ARP_EN, pval);
1446
1447 len = sprintf(buf, "%s\n", pval);
1448 break;
1449 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN:
1450 OP_STATE(ha->ip_config.ipv4_options, IPOPT_ALT_CID_EN,
1451 pval);
1452
1453 len = sprintf(buf, "%s\n", pval);
1454 break;
1455 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID:
1456 pval = (ha->ip_config.ipv4_alt_cid_len) ?
1457 (char *)ha->ip_config.ipv4_alt_cid : "";
1458
1459 len = sprintf(buf, "%s\n", pval);
1460 break;
1461 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN:
1462 OP_STATE(ha->ip_config.ipv4_options,
1463 IPOPT_REQ_VID_EN, pval);
1464
1465 len = sprintf(buf, "%s\n", pval);
1466 break;
1467 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN:
1468 OP_STATE(ha->ip_config.ipv4_options,
1469 IPOPT_USE_VID_EN, pval);
1470
1471 len = sprintf(buf, "%s\n", pval);
1472 break;
1473 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID:
1474 pval = (ha->ip_config.ipv4_vid_len) ?
1475 (char *)ha->ip_config.ipv4_vid : "";
1476
1477 len = sprintf(buf, "%s\n", pval);
1478 break;
1479 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN:
1480 OP_STATE(ha->ip_config.ipv4_options,
1481 IPOPT_LEARN_IQN_EN, pval);
1482
1483 len = sprintf(buf, "%s\n", pval);
1484 break;
1485 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE:
1486 OP_STATE(~ha->ip_config.ipv4_options,
1487 IPOPT_FRAGMENTATION_DISABLE, pval);
1488
1489 len = sprintf(buf, "%s\n", pval);
1490 break;
1491 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN:
1492 OP_STATE(ha->ip_config.ipv4_options,
1493 IPOPT_IN_FORWARD_EN, pval);
1494
1495 len = sprintf(buf, "%s\n", pval);
1496 break;
1497 case ISCSI_NET_PARAM_REDIRECT_EN:
1498 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1499 OP_STATE(ha->ip_config.ipv4_options,
1500 IPOPT_ARP_REDIRECT_EN, pval);
1501 } else {
1502 OP_STATE(ha->ip_config.ipv6_options,
1503 IPV6_OPT_REDIRECT_EN, pval);
1504 }
1505 len = sprintf(buf, "%s\n", pval);
1506 break;
1507 case ISCSI_NET_PARAM_IPV4_TTL:
1508 len = sprintf(buf, "%d\n", ha->ip_config.ipv4_ttl);
1509 break;
1510 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN:
1511 OP_STATE(ha->ip_config.ipv6_options,
1512 IPV6_OPT_GRAT_NEIGHBOR_ADV_EN, pval);
1513
1514 len = sprintf(buf, "%s\n", pval);
1515 break;
1516 case ISCSI_NET_PARAM_IPV6_MLD_EN:
1517 OP_STATE(ha->ip_config.ipv6_addl_options,
1518 IPV6_ADDOPT_MLD_EN, pval);
1519
1520 len = sprintf(buf, "%s\n", pval);
1521 break;
1522 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL:
1523 len = sprintf(buf, "%u\n", ha->ip_config.ipv6_flow_lbl);
1524 break;
1525 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS:
6ac73e8c 1526 len = sprintf(buf, "%d\n",
f8e93412
HZ		 1527 ha->ip_config.ipv6_traffic_class);
1528 break;
1529 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT:
6ac73e8c 1530 len = sprintf(buf, "%d\n",
f8e93412
HZ		 1531 ha->ip_config.ipv6_hop_limit);
1532 break;
1533 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO:
6ac73e8c 1534 len = sprintf(buf, "%d\n",
f8e93412
HZ		 1535 ha->ip_config.ipv6_nd_reach_time);
1536 break;
1537 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME:
6ac73e8c 1538 len = sprintf(buf, "%d\n",
f8e93412
HZ		 1539 ha->ip_config.ipv6_nd_rexmit_timer);
1540 break;
1541 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO:
1542 len = sprintf(buf, "%d\n",
1543 ha->ip_config.ipv6_nd_stale_timeout);
1544 break;
1545 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT:
1546 len = sprintf(buf, "%d\n",
1547 ha->ip_config.ipv6_dup_addr_detect_count);
1548 break;
1549 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU:
1550 len = sprintf(buf, "%d\n",
1551 ha->ip_config.ipv6_gw_advrt_mtu);
1552 break;
1553 default:
1554 len = -ENOSYS;
1555 }
1556 } else if (param_type == ISCSI_IFACE_PARAM) {
1557 switch (param) {
1558 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO:
1559 len = sprintf(buf, "%d\n", ha->ip_config.def_timeout);
1560 break;
1561 case ISCSI_IFACE_PARAM_HDRDGST_EN:
1562 OP_STATE(ha->ip_config.iscsi_options,
1563 ISCSIOPTS_HEADER_DIGEST_EN, pval);
1564
1565 len = sprintf(buf, "%s\n", pval);
1566 break;
1567 case ISCSI_IFACE_PARAM_DATADGST_EN:
1568 OP_STATE(ha->ip_config.iscsi_options,
1569 ISCSIOPTS_DATA_DIGEST_EN, pval);
1570
1571 len = sprintf(buf, "%s\n", pval);
1572 break;
1573 case ISCSI_IFACE_PARAM_IMM_DATA_EN:
1574 OP_STATE(ha->ip_config.iscsi_options,
1575 ISCSIOPTS_IMMEDIATE_DATA_EN, pval);
1576
1577 len = sprintf(buf, "%s\n", pval);
1578 break;
1579 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN:
1580 OP_STATE(ha->ip_config.iscsi_options,
1581 ISCSIOPTS_INITIAL_R2T_EN, pval);
1582
1583 len = sprintf(buf, "%s\n", pval);
1584 break;
1585 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN:
1586 OP_STATE(ha->ip_config.iscsi_options,
1587 ISCSIOPTS_DATA_SEQ_INORDER_EN, pval);
1588
1589 len = sprintf(buf, "%s\n", pval);
1590 break;
1591 case ISCSI_IFACE_PARAM_PDU_INORDER_EN:
1592 OP_STATE(ha->ip_config.iscsi_options,
1593 ISCSIOPTS_DATA_PDU_INORDER_EN, pval);
1594
1595 len = sprintf(buf, "%s\n", pval);
1596 break;
1597 case ISCSI_IFACE_PARAM_ERL:
1598 len = sprintf(buf, "%d\n",
1599 (ha->ip_config.iscsi_options &
1600 ISCSIOPTS_ERL));
1601 break;
1602 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH:
1603 len = sprintf(buf, "%u\n",
1604 ha->ip_config.iscsi_max_pdu_size *
1605 BYTE_UNITS);
1606 break;
1607 case ISCSI_IFACE_PARAM_FIRST_BURST:
1608 len = sprintf(buf, "%u\n",
1609 ha->ip_config.iscsi_first_burst_len *
1610 BYTE_UNITS);
1611 break;
1612 case ISCSI_IFACE_PARAM_MAX_R2T:
1613 len = sprintf(buf, "%d\n",
1614 ha->ip_config.iscsi_max_outstnd_r2t);
1615 break;
1616 case ISCSI_IFACE_PARAM_MAX_BURST:
1617 len = sprintf(buf, "%u\n",
1618 ha->ip_config.iscsi_max_burst_len *
1619 BYTE_UNITS);
1620 break;
1621 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN:
1622 OP_STATE(ha->ip_config.iscsi_options,
1623 ISCSIOPTS_CHAP_AUTH_EN, pval);
1624
1625 len = sprintf(buf, "%s\n", pval);
1626 break;
1627 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN:
1628 OP_STATE(ha->ip_config.iscsi_options,
1629 ISCSIOPTS_BIDI_CHAP_EN, pval);
1630
1631 len = sprintf(buf, "%s\n", pval);
1632 break;
1633 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL:
1634 OP_STATE(ha->ip_config.iscsi_options,
1635 ISCSIOPTS_DISCOVERY_AUTH_EN, pval);
1636
1637 len = sprintf(buf, "%s\n", pval);
1638 break;
1639 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN:
1640 OP_STATE(ha->ip_config.iscsi_options,
1641 ISCSIOPTS_DISCOVERY_LOGOUT_EN, pval);
1642
1643 len = sprintf(buf, "%s\n", pval);
1644 break;
1645 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN:
1646 OP_STATE(ha->ip_config.iscsi_options,
1647 ISCSIOPTS_STRICT_LOGIN_COMP_EN, pval);
1648
1649 len = sprintf(buf, "%s\n", pval);
1650 break;
1651 case ISCSI_IFACE_PARAM_INITIATOR_NAME:
1652 len = sprintf(buf, "%s\n", ha->ip_config.iscsi_name);
1653 break;
1654 default:
1655 len = -ENOSYS;
1656 }
ed1086e0
VC		 1657 }
1658
1659 return len;
1660}
1661
b3a271a9
MR		 1662static struct iscsi_endpoint *
1663qla4xxx_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr,
1664 int non_blocking)
5c656af7 1665{
b3a271a9
MR		 1666 int ret;
1667 struct iscsi_endpoint *ep;
1668 struct qla_endpoint *qla_ep;
1669 struct scsi_qla_host *ha;
1670 struct sockaddr_in *addr;
1671 struct sockaddr_in6 *addr6;
5c656af7 1672
b3a271a9
MR		 1673 if (!shost) {
1674 ret = -ENXIO;
c343c5e0 1675 pr_err("%s: shost is NULL\n", __func__);
b3a271a9
MR		 1676 return ERR_PTR(ret);
1677 }
5c656af7 1678
b3a271a9 1679 ha = iscsi_host_priv(shost);
b3a271a9
MR		 1680 ep = iscsi_create_endpoint(sizeof(struct qla_endpoint));
1681 if (!ep) {
1682 ret = -ENOMEM;
1683 return ERR_PTR(ret);
1684 }
1685
1686 qla_ep = ep->dd_data;
1687 memset(qla_ep, 0, sizeof(struct qla_endpoint));
1688 if (dst_addr->sa_family == AF_INET) {
1689 memcpy(&qla_ep->dst_addr, dst_addr, sizeof(struct sockaddr_in));
1690 addr = (struct sockaddr_in *)&qla_ep->dst_addr;
1691 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI4\n", __func__,
1692 (char *)&addr->sin_addr));
1693 } else if (dst_addr->sa_family == AF_INET6) {
1694 memcpy(&qla_ep->dst_addr, dst_addr,
1695 sizeof(struct sockaddr_in6));
1696 addr6 = (struct sockaddr_in6 *)&qla_ep->dst_addr;
1697 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI6\n", __func__,
1698 (char *)&addr6->sin6_addr));
c343c5e0
VC		 1699 } else {
1700 ql4_printk(KERN_WARNING, ha, "%s: Invalid endpoint\n",
1701 __func__);
b3a271a9
MR		 1702 }
1703
1704 qla_ep->host = shost;
1705
1706 return ep;
5c656af7
MC		 1707}
1708
b3a271a9 1709static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms)
afaf5a2d 1710{
b3a271a9
MR		 1711 struct qla_endpoint *qla_ep;
1712 struct scsi_qla_host *ha;
1713 int ret = 0;
afaf5a2d 1714
b3a271a9
MR		 1715 qla_ep = ep->dd_data;
1716 ha = to_qla_host(qla_ep->host);
c343c5e0 1717 DEBUG2(pr_info_ratelimited("%s: host: %ld\n", __func__, ha->host_no));
b3a271a9 1718
13483730 1719 if (adapter_up(ha) && !test_bit(AF_BUILD_DDB_LIST, &ha->flags))
b3a271a9
MR		 1720 ret = 1;
1721
1722 return ret;
1723}
1724
1725static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep)
1726{
c343c5e0
VC		 1727 struct qla_endpoint *qla_ep;
1728 struct scsi_qla_host *ha;
1729
1730 qla_ep = ep->dd_data;
1731 ha = to_qla_host(qla_ep->host);
1732 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__,
1733 ha->host_no));
b3a271a9
MR		 1734 iscsi_destroy_endpoint(ep);
1735}
1736
1737static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep,
1738 enum iscsi_param param,
1739 char *buf)
1740{
1741 struct qla_endpoint *qla_ep = ep->dd_data;
1742 struct sockaddr *dst_addr;
c343c5e0 1743 struct scsi_qla_host *ha;
b3a271a9 1744
c343c5e0
VC		 1745 ha = to_qla_host(qla_ep->host);
1746 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__,
1747 ha->host_no));
b3a271a9
MR		 1748
1749 switch (param) {
1750 case ISCSI_PARAM_CONN_PORT:
1751 case ISCSI_PARAM_CONN_ADDRESS:
1752 if (!qla_ep)
1753 return -ENOTCONN;
1754
1755 dst_addr = (struct sockaddr *)&qla_ep->dst_addr;
1756 if (!dst_addr)
1757 return -ENOTCONN;
1758
1759 return iscsi_conn_get_addr_param((struct sockaddr_storage *)
1760 &qla_ep->dst_addr, param, buf);
1761 default:
1762 return -ENOSYS;
1763 }
1764}
1765
1766static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn,
1767 struct iscsi_stats *stats)
1768{
1769 struct iscsi_session *sess;
1770 struct iscsi_cls_session *cls_sess;
1771 struct ddb_entry *ddb_entry;
1772 struct scsi_qla_host *ha;
1773 struct ql_iscsi_stats *ql_iscsi_stats;
1774 int stats_size;
1775 int ret;
1776 dma_addr_t iscsi_stats_dma;
1777
b3a271a9
MR		 1778 cls_sess = iscsi_conn_to_session(cls_conn);
1779 sess = cls_sess->dd_data;
1780 ddb_entry = sess->dd_data;
1781 ha = ddb_entry->ha;
1782
c343c5e0
VC		 1783 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__,
1784 ha->host_no));
b3a271a9
MR		 1785 stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats));
1786 /* Allocate memory */
1787 ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size,
1788 &iscsi_stats_dma, GFP_KERNEL);
1789 if (!ql_iscsi_stats) {
1790 ql4_printk(KERN_ERR, ha,
1791 "Unable to allocate memory for iscsi stats\n");
1792 goto exit_get_stats;
568d303b 1793 }
b3a271a9
MR		 1794
1795 ret = qla4xxx_get_mgmt_data(ha, ddb_entry->fw_ddb_index, stats_size,
1796 iscsi_stats_dma);
1797 if (ret != QLA_SUCCESS) {
1798 ql4_printk(KERN_ERR, ha,
59e13d48 1799 "Unable to retrieve iscsi stats\n");
b3a271a9
MR		 1800 goto free_stats;
1801 }
1802
1803 /* octets */
1804 stats->txdata_octets = le64_to_cpu(ql_iscsi_stats->tx_data_octets);
1805 stats->rxdata_octets = le64_to_cpu(ql_iscsi_stats->rx_data_octets);
1806 /* xmit pdus */
1807 stats->noptx_pdus = le32_to_cpu(ql_iscsi_stats->tx_nopout_pdus);
1808 stats->scsicmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_cmd_pdus);
1809 stats->tmfcmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_tmf_cmd_pdus);
1810 stats->login_pdus = le32_to_cpu(ql_iscsi_stats->tx_login_cmd_pdus);
1811 stats->text_pdus = le32_to_cpu(ql_iscsi_stats->tx_text_cmd_pdus);
1812 stats->dataout_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_write_pdus);
1813 stats->logout_pdus = le32_to_cpu(ql_iscsi_stats->tx_logout_cmd_pdus);
1814 stats->snack_pdus = le32_to_cpu(ql_iscsi_stats->tx_snack_req_pdus);
1815 /* recv pdus */
1816 stats->noprx_pdus = le32_to_cpu(ql_iscsi_stats->rx_nopin_pdus);
1817 stats->scsirsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_resp_pdus);
1818 stats->tmfrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_tmf_resp_pdus);
1819 stats->textrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_text_resp_pdus);
1820 stats->datain_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_read_pdus);
1821 stats->logoutrsp_pdus =
1822 le32_to_cpu(ql_iscsi_stats->rx_logout_resp_pdus);
1823 stats->r2t_pdus = le32_to_cpu(ql_iscsi_stats->rx_r2t_pdus);
1824 stats->async_pdus = le32_to_cpu(ql_iscsi_stats->rx_async_pdus);
1825 stats->rjt_pdus = le32_to_cpu(ql_iscsi_stats->rx_reject_pdus);
1826
1827free_stats:
1828 dma_free_coherent(&ha->pdev->dev, stats_size, ql_iscsi_stats,
1829 iscsi_stats_dma);
1830exit_get_stats:
1831 return;
1832}
1833
1834static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc)
1835{
1836 struct iscsi_cls_session *session;
1837 struct iscsi_session *sess;
1838 unsigned long flags;
1839 enum blk_eh_timer_return ret = BLK_EH_NOT_HANDLED;
1840
1841 session = starget_to_session(scsi_target(sc->device));
1842 sess = session->dd_data;
1843
1844 spin_lock_irqsave(&session->lock, flags);
1845 if (session->state == ISCSI_SESSION_FAILED)
1846 ret = BLK_EH_RESET_TIMER;
1847 spin_unlock_irqrestore(&session->lock, flags);
1848
1849 return ret;
afaf5a2d
DS		 1850}
1851
3254dbe9
VC		 1852static void qla4xxx_set_port_speed(struct Scsi_Host *shost)
1853{
1854 struct scsi_qla_host *ha = to_qla_host(shost);
e16d166e 1855 struct iscsi_cls_host *ihost = shost->shost_data;
3254dbe9
VC		 1856 uint32_t speed = ISCSI_PORT_SPEED_UNKNOWN;
1857
1858 qla4xxx_get_firmware_state(ha);
1859
1860 switch (ha->addl_fw_state & 0x0F00) {
1861 case FW_ADDSTATE_LINK_SPEED_10MBPS:
1862 speed = ISCSI_PORT_SPEED_10MBPS;
1863 break;
1864 case FW_ADDSTATE_LINK_SPEED_100MBPS:
1865 speed = ISCSI_PORT_SPEED_100MBPS;
1866 break;
1867 case FW_ADDSTATE_LINK_SPEED_1GBPS:
1868 speed = ISCSI_PORT_SPEED_1GBPS;
1869 break;
1870 case FW_ADDSTATE_LINK_SPEED_10GBPS:
1871 speed = ISCSI_PORT_SPEED_10GBPS;
1872 break;
1873 }
1874 ihost->port_speed = speed;
1875}
1876
1877static void qla4xxx_set_port_state(struct Scsi_Host *shost)
1878{
1879 struct scsi_qla_host *ha = to_qla_host(shost);
e16d166e 1880 struct iscsi_cls_host *ihost = shost->shost_data;
3254dbe9
VC		 1881 uint32_t state = ISCSI_PORT_STATE_DOWN;
1882
1883 if (test_bit(AF_LINK_UP, &ha->flags))
1884 state = ISCSI_PORT_STATE_UP;
1885
1886 ihost->port_state = state;
1887}
1888
aa1e93a2
MC		 1889static int qla4xxx_host_get_param(struct Scsi_Host *shost,
1890 enum iscsi_host_param param, char *buf)
1891{
1892 struct scsi_qla_host *ha = to_qla_host(shost);
1893 int len;
1894
1895 switch (param) {
1896 case ISCSI_HOST_PARAM_HWADDRESS:
7ffc49a6 1897 len = sysfs_format_mac(buf, ha->my_mac, MAC_ADDR_LEN);
8ad5781a 1898 break;
22236961 1899 case ISCSI_HOST_PARAM_IPADDRESS:
2bab08fc 1900 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address);
22236961 1901 break;
8ad5781a 1902 case ISCSI_HOST_PARAM_INITIATOR_NAME:
22236961 1903 len = sprintf(buf, "%s\n", ha->name_string);
aa1e93a2 1904 break;
3254dbe9
VC		 1905 case ISCSI_HOST_PARAM_PORT_STATE:
1906 qla4xxx_set_port_state(shost);
1907 len = sprintf(buf, "%s\n", iscsi_get_port_state_name(shost));
1908 break;
1909 case ISCSI_HOST_PARAM_PORT_SPEED:
1910 qla4xxx_set_port_speed(shost);
1911 len = sprintf(buf, "%s\n", iscsi_get_port_speed_name(shost));
1912 break;
aa1e93a2
MC		 1913 default:
1914 return -ENOSYS;
1915 }
1916
1917 return len;
1918}
1919
ed1086e0
VC		 1920static void qla4xxx_create_ipv4_iface(struct scsi_qla_host *ha)
1921{
1922 if (ha->iface_ipv4)
1923 return;
1924
1925 /* IPv4 */
1926 ha->iface_ipv4 = iscsi_create_iface(ha->host,
1927 &qla4xxx_iscsi_transport,
1928 ISCSI_IFACE_TYPE_IPV4, 0, 0);
1929 if (!ha->iface_ipv4)
1930 ql4_printk(KERN_ERR, ha, "Could not create IPv4 iSCSI "
1931 "iface0.\n");
1932}
1933
1934static void qla4xxx_create_ipv6_iface(struct scsi_qla_host *ha)
1935{
1936 if (!ha->iface_ipv6_0)
1937 /* IPv6 iface-0 */
1938 ha->iface_ipv6_0 = iscsi_create_iface(ha->host,
1939 &qla4xxx_iscsi_transport,
1940 ISCSI_IFACE_TYPE_IPV6, 0,
1941 0);
1942 if (!ha->iface_ipv6_0)
1943 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI "
1944 "iface0.\n");
1945
1946 if (!ha->iface_ipv6_1)
1947 /* IPv6 iface-1 */
1948 ha->iface_ipv6_1 = iscsi_create_iface(ha->host,
1949 &qla4xxx_iscsi_transport,
1950 ISCSI_IFACE_TYPE_IPV6, 1,
1951 0);
1952 if (!ha->iface_ipv6_1)
1953 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI "
1954 "iface1.\n");
1955}
1956
1957static void qla4xxx_create_ifaces(struct scsi_qla_host *ha)
1958{
1959 if (ha->ip_config.ipv4_options & IPOPT_IPV4_PROTOCOL_ENABLE)
1960 qla4xxx_create_ipv4_iface(ha);
1961
1962 if (ha->ip_config.ipv6_options & IPV6_OPT_IPV6_PROTOCOL_ENABLE)
1963 qla4xxx_create_ipv6_iface(ha);
1964}
1965
1966static void qla4xxx_destroy_ipv4_iface(struct scsi_qla_host *ha)
1967{
1968 if (ha->iface_ipv4) {
1969 iscsi_destroy_iface(ha->iface_ipv4);
1970 ha->iface_ipv4 = NULL;
1971 }
1972}
1973
1974static void qla4xxx_destroy_ipv6_iface(struct scsi_qla_host *ha)
1975{
1976 if (ha->iface_ipv6_0) {
1977 iscsi_destroy_iface(ha->iface_ipv6_0);
1978 ha->iface_ipv6_0 = NULL;
1979 }
1980 if (ha->iface_ipv6_1) {
1981 iscsi_destroy_iface(ha->iface_ipv6_1);
1982 ha->iface_ipv6_1 = NULL;
1983 }
1984}
1985
1986static void qla4xxx_destroy_ifaces(struct scsi_qla_host *ha)
1987{
1988 qla4xxx_destroy_ipv4_iface(ha);
1989 qla4xxx_destroy_ipv6_iface(ha);
1990}
1991
d00efe3f
MC		 1992static void qla4xxx_set_ipv6(struct scsi_qla_host *ha,
1993 struct iscsi_iface_param_info *iface_param,
1994 struct addr_ctrl_blk *init_fw_cb)
1995{
1996 /*
1997 * iface_num 0 is valid for IPv6 Addr, linklocal, router, autocfg.
1998 * iface_num 1 is valid only for IPv6 Addr.
1999 */
2000 switch (iface_param->param) {
2001 case ISCSI_NET_PARAM_IPV6_ADDR:
2002 if (iface_param->iface_num & 0x1)
2003 /* IPv6 Addr 1 */
2004 memcpy(init_fw_cb->ipv6_addr1, iface_param->value,
2005 sizeof(init_fw_cb->ipv6_addr1));
2006 else
2007 /* IPv6 Addr 0 */
2008 memcpy(init_fw_cb->ipv6_addr0, iface_param->value,
2009 sizeof(init_fw_cb->ipv6_addr0));
2010 break;
2011 case ISCSI_NET_PARAM_IPV6_LINKLOCAL:
2012 if (iface_param->iface_num & 0x1)
2013 break;
2014 memcpy(init_fw_cb->ipv6_if_id, &iface_param->value[8],
2015 sizeof(init_fw_cb->ipv6_if_id));
2016 break;
2017 case ISCSI_NET_PARAM_IPV6_ROUTER:
2018 if (iface_param->iface_num & 0x1)
2019 break;
2020 memcpy(init_fw_cb->ipv6_dflt_rtr_addr, iface_param->value,
2021 sizeof(init_fw_cb->ipv6_dflt_rtr_addr));
2022 break;
2023 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG:
2024 /* Autocfg applies to even interface */
2025 if (iface_param->iface_num & 0x1)
2026 break;
2027
2028 if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_DISABLE)
2029 init_fw_cb->ipv6_addtl_opts &=
2030 cpu_to_le16(
2031 ~IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE);
2032 else if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_ND_ENABLE)
2033 init_fw_cb->ipv6_addtl_opts |=
2034 cpu_to_le16(
2035 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE);
2036 else
f8e93412
HZ		 2037 ql4_printk(KERN_ERR, ha,
2038 "Invalid autocfg setting for IPv6 addr\n");
d00efe3f
MC		 2039 break;
2040 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG:
2041 /* Autocfg applies to even interface */
2042 if (iface_param->iface_num & 0x1)
2043 break;
2044
2045 if (iface_param->value[0] ==
2046 ISCSI_IPV6_LINKLOCAL_AUTOCFG_ENABLE)
2047 init_fw_cb->ipv6_addtl_opts |= cpu_to_le16(
2048 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR);
2049 else if (iface_param->value[0] ==
2050 ISCSI_IPV6_LINKLOCAL_AUTOCFG_DISABLE)
2051 init_fw_cb->ipv6_addtl_opts &= cpu_to_le16(
2052 ~IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR);
2053 else
f8e93412
HZ		 2054 ql4_printk(KERN_ERR, ha,
2055 "Invalid autocfg setting for IPv6 linklocal addr\n");
d00efe3f
MC		 2056 break;
2057 case ISCSI_NET_PARAM_IPV6_ROUTER_AUTOCFG:
2058 /* Autocfg applies to even interface */
2059 if (iface_param->iface_num & 0x1)
2060 break;
2061
2062 if (iface_param->value[0] == ISCSI_IPV6_ROUTER_AUTOCFG_ENABLE)
2063 memset(init_fw_cb->ipv6_dflt_rtr_addr, 0,
2064 sizeof(init_fw_cb->ipv6_dflt_rtr_addr));
2065 break;
2066 case ISCSI_NET_PARAM_IFACE_ENABLE:
ed1086e0 2067 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) {
d00efe3f
MC		 2068 init_fw_cb->ipv6_opts |=
2069 cpu_to_le16(IPV6_OPT_IPV6_PROTOCOL_ENABLE);
ed1086e0
VC		 2070 qla4xxx_create_ipv6_iface(ha);
2071 } else {
d00efe3f
MC		 2072 init_fw_cb->ipv6_opts &=
2073 cpu_to_le16(~IPV6_OPT_IPV6_PROTOCOL_ENABLE &
2074 0xFFFF);
ed1086e0
VC		 2075 qla4xxx_destroy_ipv6_iface(ha);
2076 }
d00efe3f 2077 break;
2d63673b 2078 case ISCSI_NET_PARAM_VLAN_TAG:
d00efe3f
MC		 2079 if (iface_param->len != sizeof(init_fw_cb->ipv6_vlan_tag))
2080 break;
6ac73e8c
VC		 2081 init_fw_cb->ipv6_vlan_tag =
2082 cpu_to_be16(*(uint16_t *)iface_param->value);
2083 break;
2084 case ISCSI_NET_PARAM_VLAN_ENABLED:
2085 if (iface_param->value[0] == ISCSI_VLAN_ENABLE)
2086 init_fw_cb->ipv6_opts |=
2087 cpu_to_le16(IPV6_OPT_VLAN_TAGGING_ENABLE);
2088 else
2089 init_fw_cb->ipv6_opts &=
2090 cpu_to_le16(~IPV6_OPT_VLAN_TAGGING_ENABLE);
d00efe3f 2091 break;
943c157b
VC		 2092 case ISCSI_NET_PARAM_MTU:
2093 init_fw_cb->eth_mtu_size =
2094 cpu_to_le16(*(uint16_t *)iface_param->value);
2095 break;
2ada7fc5
VC		 2096 case ISCSI_NET_PARAM_PORT:
2097 /* Autocfg applies to even interface */
2098 if (iface_param->iface_num & 0x1)
2099 break;
2100
2101 init_fw_cb->ipv6_port =
2102 cpu_to_le16(*(uint16_t *)iface_param->value);
2103 break;
f8e93412
HZ		 2104 case ISCSI_NET_PARAM_DELAYED_ACK_EN:
2105 if (iface_param->iface_num & 0x1)
2106 break;
2107 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2108 init_fw_cb->ipv6_tcp_opts |=
2109 cpu_to_le16(IPV6_TCPOPT_DELAYED_ACK_DISABLE);
2110 else
2111 init_fw_cb->ipv6_tcp_opts &=
8f10872a
VC		 2112 cpu_to_le16(~IPV6_TCPOPT_DELAYED_ACK_DISABLE &
2113 0xFFFF);
f8e93412
HZ		 2114 break;
2115 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE:
2116 if (iface_param->iface_num & 0x1)
2117 break;
2118 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2119 init_fw_cb->ipv6_tcp_opts |=
2120 cpu_to_le16(IPV6_TCPOPT_NAGLE_ALGO_DISABLE);
2121 else
2122 init_fw_cb->ipv6_tcp_opts &=
2123 cpu_to_le16(~IPV6_TCPOPT_NAGLE_ALGO_DISABLE);
2124 break;
2125 case ISCSI_NET_PARAM_TCP_WSF_DISABLE:
2126 if (iface_param->iface_num & 0x1)
2127 break;
2128 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2129 init_fw_cb->ipv6_tcp_opts |=
2130 cpu_to_le16(IPV6_TCPOPT_WINDOW_SCALE_DISABLE);
2131 else
2132 init_fw_cb->ipv6_tcp_opts &=
2133 cpu_to_le16(~IPV6_TCPOPT_WINDOW_SCALE_DISABLE);
2134 break;
2135 case ISCSI_NET_PARAM_TCP_WSF:
2136 if (iface_param->iface_num & 0x1)
2137 break;
2138 init_fw_cb->ipv6_tcp_wsf = iface_param->value[0];
2139 break;
2140 case ISCSI_NET_PARAM_TCP_TIMER_SCALE:
2141 if (iface_param->iface_num & 0x1)
2142 break;
2143 init_fw_cb->ipv6_tcp_opts &=
2144 cpu_to_le16(~IPV6_TCPOPT_TIMER_SCALE);
2145 init_fw_cb->ipv6_tcp_opts |=
2146 cpu_to_le16((iface_param->value[0] << 1) &
2147 IPV6_TCPOPT_TIMER_SCALE);
2148 break;
2149 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN:
2150 if (iface_param->iface_num & 0x1)
2151 break;
2152 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2153 init_fw_cb->ipv6_tcp_opts |=
2154 cpu_to_le16(IPV6_TCPOPT_TIMESTAMP_EN);
2155 else
2156 init_fw_cb->ipv6_tcp_opts &=
2157 cpu_to_le16(~IPV6_TCPOPT_TIMESTAMP_EN);
2158 break;
2159 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN:
2160 if (iface_param->iface_num & 0x1)
2161 break;
2162 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2163 init_fw_cb->ipv6_opts |=
2164 cpu_to_le16(IPV6_OPT_GRAT_NEIGHBOR_ADV_EN);
2165 else
2166 init_fw_cb->ipv6_opts &=
2167 cpu_to_le16(~IPV6_OPT_GRAT_NEIGHBOR_ADV_EN);
2168 break;
2169 case ISCSI_NET_PARAM_REDIRECT_EN:
2170 if (iface_param->iface_num & 0x1)
2171 break;
2172 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2173 init_fw_cb->ipv6_opts |=
2174 cpu_to_le16(IPV6_OPT_REDIRECT_EN);
2175 else
2176 init_fw_cb->ipv6_opts &=
2177 cpu_to_le16(~IPV6_OPT_REDIRECT_EN);
2178 break;
2179 case ISCSI_NET_PARAM_IPV6_MLD_EN:
2180 if (iface_param->iface_num & 0x1)
2181 break;
2182 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2183 init_fw_cb->ipv6_addtl_opts |=
2184 cpu_to_le16(IPV6_ADDOPT_MLD_EN);
2185 else
2186 init_fw_cb->ipv6_addtl_opts &=
2187 cpu_to_le16(~IPV6_ADDOPT_MLD_EN);
2188 break;
2189 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL:
2190 if (iface_param->iface_num & 0x1)
2191 break;
2192 init_fw_cb->ipv6_flow_lbl =
2193 cpu_to_le16(*(uint16_t *)iface_param->value);
2194 break;
2195 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS:
2196 if (iface_param->iface_num & 0x1)
2197 break;
2198 init_fw_cb->ipv6_traffic_class = iface_param->value[0];
2199 break;
2200 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT:
2201 if (iface_param->iface_num & 0x1)
2202 break;
2203 init_fw_cb->ipv6_hop_limit = iface_param->value[0];
2204 break;
2205 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO:
2206 if (iface_param->iface_num & 0x1)
2207 break;
2208 init_fw_cb->ipv6_nd_reach_time =
2209 cpu_to_le32(*(uint32_t *)iface_param->value);
2210 break;
2211 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME:
2212 if (iface_param->iface_num & 0x1)
2213 break;
2214 init_fw_cb->ipv6_nd_rexmit_timer =
2215 cpu_to_le32(*(uint32_t *)iface_param->value);
2216 break;
2217 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO:
2218 if (iface_param->iface_num & 0x1)
2219 break;
2220 init_fw_cb->ipv6_nd_stale_timeout =
2221 cpu_to_le32(*(uint32_t *)iface_param->value);
2222 break;
2223 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT:
2224 if (iface_param->iface_num & 0x1)
2225 break;
2226 init_fw_cb->ipv6_dup_addr_detect_count = iface_param->value[0];
2227 break;
2228 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU:
2229 if (iface_param->iface_num & 0x1)
2230 break;
2231 init_fw_cb->ipv6_gw_advrt_mtu =
2232 cpu_to_le32(*(uint32_t *)iface_param->value);
2233 break;
d00efe3f
MC		 2234 default:
2235 ql4_printk(KERN_ERR, ha, "Unknown IPv6 param = %d\n",
2236 iface_param->param);
2237 break;
2238 }
2239}
2240
2241static void qla4xxx_set_ipv4(struct scsi_qla_host *ha,
2242 struct iscsi_iface_param_info *iface_param,
2243 struct addr_ctrl_blk *init_fw_cb)
2244{
2245 switch (iface_param->param) {
2246 case ISCSI_NET_PARAM_IPV4_ADDR:
2247 memcpy(init_fw_cb->ipv4_addr, iface_param->value,
2248 sizeof(init_fw_cb->ipv4_addr));
2249 break;
2250 case ISCSI_NET_PARAM_IPV4_SUBNET:
2251 memcpy(init_fw_cb->ipv4_subnet, iface_param->value,
2252 sizeof(init_fw_cb->ipv4_subnet));
2253 break;
2254 case ISCSI_NET_PARAM_IPV4_GW:
2255 memcpy(init_fw_cb->ipv4_gw_addr, iface_param->value,
2256 sizeof(init_fw_cb->ipv4_gw_addr));
2257 break;
2258 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
2259 if (iface_param->value[0] == ISCSI_BOOTPROTO_DHCP)
2260 init_fw_cb->ipv4_tcp_opts |=
2261 cpu_to_le16(TCPOPT_DHCP_ENABLE);
2262 else if (iface_param->value[0] == ISCSI_BOOTPROTO_STATIC)
2263 init_fw_cb->ipv4_tcp_opts &=
2264 cpu_to_le16(~TCPOPT_DHCP_ENABLE);
2265 else
2266 ql4_printk(KERN_ERR, ha, "Invalid IPv4 bootproto\n");
2267 break;
2268 case ISCSI_NET_PARAM_IFACE_ENABLE:
ed1086e0 2269 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) {
d00efe3f 2270 init_fw_cb->ipv4_ip_opts |=
2bab08fc 2271 cpu_to_le16(IPOPT_IPV4_PROTOCOL_ENABLE);
ed1086e0
VC		 2272 qla4xxx_create_ipv4_iface(ha);
2273 } else {
d00efe3f 2274 init_fw_cb->ipv4_ip_opts &=
2bab08fc 2275 cpu_to_le16(~IPOPT_IPV4_PROTOCOL_ENABLE &
d00efe3f 2276 0xFFFF);
ed1086e0
VC		 2277 qla4xxx_destroy_ipv4_iface(ha);
2278 }
d00efe3f 2279 break;
2d63673b 2280 case ISCSI_NET_PARAM_VLAN_TAG:
d00efe3f
MC		 2281 if (iface_param->len != sizeof(init_fw_cb->ipv4_vlan_tag))
2282 break;
6ac73e8c
VC		 2283 init_fw_cb->ipv4_vlan_tag =
2284 cpu_to_be16(*(uint16_t *)iface_param->value);
2285 break;
2286 case ISCSI_NET_PARAM_VLAN_ENABLED:
2287 if (iface_param->value[0] == ISCSI_VLAN_ENABLE)
2288 init_fw_cb->ipv4_ip_opts |=
2289 cpu_to_le16(IPOPT_VLAN_TAGGING_ENABLE);
2290 else
2291 init_fw_cb->ipv4_ip_opts &=
2292 cpu_to_le16(~IPOPT_VLAN_TAGGING_ENABLE);
d00efe3f 2293 break;
943c157b
VC		 2294 case ISCSI_NET_PARAM_MTU:
2295 init_fw_cb->eth_mtu_size =
2296 cpu_to_le16(*(uint16_t *)iface_param->value);
2297 break;
2ada7fc5
VC		 2298 case ISCSI_NET_PARAM_PORT:
2299 init_fw_cb->ipv4_port =
2300 cpu_to_le16(*(uint16_t *)iface_param->value);
2301 break;
f8e93412
HZ		 2302 case ISCSI_NET_PARAM_DELAYED_ACK_EN:
2303 if (iface_param->iface_num & 0x1)
2304 break;
2305 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2306 init_fw_cb->ipv4_tcp_opts |=
2307 cpu_to_le16(TCPOPT_DELAYED_ACK_DISABLE);
2308 else
2309 init_fw_cb->ipv4_tcp_opts &=
8f10872a
VC		 2310 cpu_to_le16(~TCPOPT_DELAYED_ACK_DISABLE &
2311 0xFFFF);
f8e93412
HZ		 2312 break;
2313 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE:
2314 if (iface_param->iface_num & 0x1)
2315 break;
2316 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2317 init_fw_cb->ipv4_tcp_opts |=
2318 cpu_to_le16(TCPOPT_NAGLE_ALGO_DISABLE);
2319 else
2320 init_fw_cb->ipv4_tcp_opts &=
2321 cpu_to_le16(~TCPOPT_NAGLE_ALGO_DISABLE);
2322 break;
2323 case ISCSI_NET_PARAM_TCP_WSF_DISABLE:
2324 if (iface_param->iface_num & 0x1)
2325 break;
2326 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2327 init_fw_cb->ipv4_tcp_opts |=
2328 cpu_to_le16(TCPOPT_WINDOW_SCALE_DISABLE);
2329 else
2330 init_fw_cb->ipv4_tcp_opts &=
2331 cpu_to_le16(~TCPOPT_WINDOW_SCALE_DISABLE);
2332 break;
2333 case ISCSI_NET_PARAM_TCP_WSF:
2334 if (iface_param->iface_num & 0x1)
2335 break;
2336 init_fw_cb->ipv4_tcp_wsf = iface_param->value[0];
2337 break;
2338 case ISCSI_NET_PARAM_TCP_TIMER_SCALE:
2339 if (iface_param->iface_num & 0x1)
2340 break;
2341 init_fw_cb->ipv4_tcp_opts &= cpu_to_le16(~TCPOPT_TIMER_SCALE);
2342 init_fw_cb->ipv4_tcp_opts |=
2343 cpu_to_le16((iface_param->value[0] << 1) &
2344 TCPOPT_TIMER_SCALE);
2345 break;
2346 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN:
2347 if (iface_param->iface_num & 0x1)
2348 break;
2349 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2350 init_fw_cb->ipv4_tcp_opts |=
2351 cpu_to_le16(TCPOPT_TIMESTAMP_ENABLE);
2352 else
2353 init_fw_cb->ipv4_tcp_opts &=
2354 cpu_to_le16(~TCPOPT_TIMESTAMP_ENABLE);
2355 break;
2356 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN:
2357 if (iface_param->iface_num & 0x1)
2358 break;
2359 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2360 init_fw_cb->ipv4_tcp_opts |=
2361 cpu_to_le16(TCPOPT_DNS_SERVER_IP_EN);
2362 else
2363 init_fw_cb->ipv4_tcp_opts &=
2364 cpu_to_le16(~TCPOPT_DNS_SERVER_IP_EN);
2365 break;
2366 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN:
2367 if (iface_param->iface_num & 0x1)
2368 break;
2369 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2370 init_fw_cb->ipv4_tcp_opts |=
2371 cpu_to_le16(TCPOPT_SLP_DA_INFO_EN);
2372 else
2373 init_fw_cb->ipv4_tcp_opts &=
2374 cpu_to_le16(~TCPOPT_SLP_DA_INFO_EN);
2375 break;
2376 case ISCSI_NET_PARAM_IPV4_TOS_EN:
2377 if (iface_param->iface_num & 0x1)
2378 break;
2379 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2380 init_fw_cb->ipv4_ip_opts |=
2381 cpu_to_le16(IPOPT_IPV4_TOS_EN);
2382 else
2383 init_fw_cb->ipv4_ip_opts &=
2384 cpu_to_le16(~IPOPT_IPV4_TOS_EN);
2385 break;
2386 case ISCSI_NET_PARAM_IPV4_TOS:
2387 if (iface_param->iface_num & 0x1)
2388 break;
2389 init_fw_cb->ipv4_tos = iface_param->value[0];
2390 break;
2391 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN:
2392 if (iface_param->iface_num & 0x1)
2393 break;
2394 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2395 init_fw_cb->ipv4_ip_opts |=
2396 cpu_to_le16(IPOPT_GRAT_ARP_EN);
2397 else
2398 init_fw_cb->ipv4_ip_opts &=
2399 cpu_to_le16(~IPOPT_GRAT_ARP_EN);
2400 break;
2401 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN:
2402 if (iface_param->iface_num & 0x1)
2403 break;
2404 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2405 init_fw_cb->ipv4_ip_opts |=
2406 cpu_to_le16(IPOPT_ALT_CID_EN);
2407 else
2408 init_fw_cb->ipv4_ip_opts &=
2409 cpu_to_le16(~IPOPT_ALT_CID_EN);
2410 break;
2411 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID:
2412 if (iface_param->iface_num & 0x1)
2413 break;
2414 memcpy(init_fw_cb->ipv4_dhcp_alt_cid, iface_param->value,
2415 (sizeof(init_fw_cb->ipv4_dhcp_alt_cid) - 1));
2416 init_fw_cb->ipv4_dhcp_alt_cid_len =
2417 strlen(init_fw_cb->ipv4_dhcp_alt_cid);
2418 break;
2419 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN:
2420 if (iface_param->iface_num & 0x1)
2421 break;
2422 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2423 init_fw_cb->ipv4_ip_opts |=
2424 cpu_to_le16(IPOPT_REQ_VID_EN);
2425 else
2426 init_fw_cb->ipv4_ip_opts &=
2427 cpu_to_le16(~IPOPT_REQ_VID_EN);
2428 break;
2429 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN:
2430 if (iface_param->iface_num & 0x1)
2431 break;
2432 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2433 init_fw_cb->ipv4_ip_opts |=
2434 cpu_to_le16(IPOPT_USE_VID_EN);
2435 else
2436 init_fw_cb->ipv4_ip_opts &=
2437 cpu_to_le16(~IPOPT_USE_VID_EN);
2438 break;
2439 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID:
2440 if (iface_param->iface_num & 0x1)
2441 break;
2442 memcpy(init_fw_cb->ipv4_dhcp_vid, iface_param->value,
2443 (sizeof(init_fw_cb->ipv4_dhcp_vid) - 1));
2444 init_fw_cb->ipv4_dhcp_vid_len =
2445 strlen(init_fw_cb->ipv4_dhcp_vid);
2446 break;
2447 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN:
2448 if (iface_param->iface_num & 0x1)
2449 break;
2450 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2451 init_fw_cb->ipv4_ip_opts |=
2452 cpu_to_le16(IPOPT_LEARN_IQN_EN);
2453 else
2454 init_fw_cb->ipv4_ip_opts &=
2455 cpu_to_le16(~IPOPT_LEARN_IQN_EN);
2456 break;
2457 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE:
2458 if (iface_param->iface_num & 0x1)
2459 break;
2460 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2461 init_fw_cb->ipv4_ip_opts |=
2462 cpu_to_le16(IPOPT_FRAGMENTATION_DISABLE);
2463 else
2464 init_fw_cb->ipv4_ip_opts &=
2465 cpu_to_le16(~IPOPT_FRAGMENTATION_DISABLE);
2466 break;
2467 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN:
2468 if (iface_param->iface_num & 0x1)
2469 break;
2470 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2471 init_fw_cb->ipv4_ip_opts |=
2472 cpu_to_le16(IPOPT_IN_FORWARD_EN);
2473 else
2474 init_fw_cb->ipv4_ip_opts &=
2475 cpu_to_le16(~IPOPT_IN_FORWARD_EN);
2476 break;
2477 case ISCSI_NET_PARAM_REDIRECT_EN:
2478 if (iface_param->iface_num & 0x1)
2479 break;
2480 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2481 init_fw_cb->ipv4_ip_opts |=
2482 cpu_to_le16(IPOPT_ARP_REDIRECT_EN);
2483 else
2484 init_fw_cb->ipv4_ip_opts &=
2485 cpu_to_le16(~IPOPT_ARP_REDIRECT_EN);
2486 break;
2487 case ISCSI_NET_PARAM_IPV4_TTL:
2488 if (iface_param->iface_num & 0x1)
2489 break;
2490 init_fw_cb->ipv4_ttl = iface_param->value[0];
2491 break;
d00efe3f
MC		 2492 default:
2493 ql4_printk(KERN_ERR, ha, "Unknown IPv4 param = %d\n",
2494 iface_param->param);
2495 break;
2496 }
2497}
2498
f8e93412
HZ		 2499static void qla4xxx_set_iscsi_param(struct scsi_qla_host *ha,
2500 struct iscsi_iface_param_info *iface_param,
2501 struct addr_ctrl_blk *init_fw_cb)
2502{
2503 switch (iface_param->param) {
2504 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO:
2505 if (iface_param->iface_num & 0x1)
2506 break;
2507 init_fw_cb->def_timeout =
2508 cpu_to_le16(*(uint16_t *)iface_param->value);
2509 break;
2510 case ISCSI_IFACE_PARAM_HDRDGST_EN:
2511 if (iface_param->iface_num & 0x1)
2512 break;
2513 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2514 init_fw_cb->iscsi_opts |=
2515 cpu_to_le16(ISCSIOPTS_HEADER_DIGEST_EN);
2516 else
2517 init_fw_cb->iscsi_opts &=
2518 cpu_to_le16(~ISCSIOPTS_HEADER_DIGEST_EN);
2519 break;
2520 case ISCSI_IFACE_PARAM_DATADGST_EN:
2521 if (iface_param->iface_num & 0x1)
2522 break;
2523 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2524 init_fw_cb->iscsi_opts |=
2525 cpu_to_le16(ISCSIOPTS_DATA_DIGEST_EN);
2526 else
2527 init_fw_cb->iscsi_opts &=
2528 cpu_to_le16(~ISCSIOPTS_DATA_DIGEST_EN);
2529 break;
2530 case ISCSI_IFACE_PARAM_IMM_DATA_EN:
2531 if (iface_param->iface_num & 0x1)
2532 break;
2533 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2534 init_fw_cb->iscsi_opts |=
2535 cpu_to_le16(ISCSIOPTS_IMMEDIATE_DATA_EN);
2536 else
2537 init_fw_cb->iscsi_opts &=
2538 cpu_to_le16(~ISCSIOPTS_IMMEDIATE_DATA_EN);
2539 break;
2540 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN:
2541 if (iface_param->iface_num & 0x1)
2542 break;
2543 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2544 init_fw_cb->iscsi_opts |=
2545 cpu_to_le16(ISCSIOPTS_INITIAL_R2T_EN);
2546 else
2547 init_fw_cb->iscsi_opts &=
2548 cpu_to_le16(~ISCSIOPTS_INITIAL_R2T_EN);
2549 break;
2550 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN:
2551 if (iface_param->iface_num & 0x1)
2552 break;
2553 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2554 init_fw_cb->iscsi_opts |=
2555 cpu_to_le16(ISCSIOPTS_DATA_SEQ_INORDER_EN);
2556 else
2557 init_fw_cb->iscsi_opts &=
2558 cpu_to_le16(~ISCSIOPTS_DATA_SEQ_INORDER_EN);
2559 break;
2560 case ISCSI_IFACE_PARAM_PDU_INORDER_EN:
2561 if (iface_param->iface_num & 0x1)
2562 break;
2563 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2564 init_fw_cb->iscsi_opts |=
2565 cpu_to_le16(ISCSIOPTS_DATA_PDU_INORDER_EN);
2566 else
2567 init_fw_cb->iscsi_opts &=
2568 cpu_to_le16(~ISCSIOPTS_DATA_PDU_INORDER_EN);
2569 break;
2570 case ISCSI_IFACE_PARAM_ERL:
2571 if (iface_param->iface_num & 0x1)
2572 break;
2573 init_fw_cb->iscsi_opts &= cpu_to_le16(~ISCSIOPTS_ERL);
2574 init_fw_cb->iscsi_opts |= cpu_to_le16(iface_param->value[0] &
2575 ISCSIOPTS_ERL);
2576 break;
2577 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH:
2578 if (iface_param->iface_num & 0x1)
2579 break;
2580 init_fw_cb->iscsi_max_pdu_size =
2581 cpu_to_le32(*(uint32_t *)iface_param->value) /
2582 BYTE_UNITS;
2583 break;
2584 case ISCSI_IFACE_PARAM_FIRST_BURST:
2585 if (iface_param->iface_num & 0x1)
2586 break;
2587 init_fw_cb->iscsi_fburst_len =
2588 cpu_to_le32(*(uint32_t *)iface_param->value) /
2589 BYTE_UNITS;
2590 break;
2591 case ISCSI_IFACE_PARAM_MAX_R2T:
2592 if (iface_param->iface_num & 0x1)
2593 break;
2594 init_fw_cb->iscsi_max_outstnd_r2t =
2595 cpu_to_le16(*(uint16_t *)iface_param->value);
2596 break;
2597 case ISCSI_IFACE_PARAM_MAX_BURST:
2598 if (iface_param->iface_num & 0x1)
2599 break;
2600 init_fw_cb->iscsi_max_burst_len =
2601 cpu_to_le32(*(uint32_t *)iface_param->value) /
2602 BYTE_UNITS;
2603 break;
2604 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN:
2605 if (iface_param->iface_num & 0x1)
2606 break;
2607 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2608 init_fw_cb->iscsi_opts |=
2609 cpu_to_le16(ISCSIOPTS_CHAP_AUTH_EN);
2610 else
2611 init_fw_cb->iscsi_opts &=
2612 cpu_to_le16(~ISCSIOPTS_CHAP_AUTH_EN);
2613 break;
2614 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN:
2615 if (iface_param->iface_num & 0x1)
2616 break;
2617 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2618 init_fw_cb->iscsi_opts |=
2619 cpu_to_le16(ISCSIOPTS_BIDI_CHAP_EN);
2620 else
2621 init_fw_cb->iscsi_opts &=
2622 cpu_to_le16(~ISCSIOPTS_BIDI_CHAP_EN);
2623 break;
2624 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL:
2625 if (iface_param->iface_num & 0x1)
2626 break;
2627 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2628 init_fw_cb->iscsi_opts |=
2629 cpu_to_le16(ISCSIOPTS_DISCOVERY_AUTH_EN);
2630 else
2631 init_fw_cb->iscsi_opts &=
2632 cpu_to_le16(~ISCSIOPTS_DISCOVERY_AUTH_EN);
2633 break;
2634 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN:
2635 if (iface_param->iface_num & 0x1)
2636 break;
2637 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2638 init_fw_cb->iscsi_opts |=
2639 cpu_to_le16(ISCSIOPTS_DISCOVERY_LOGOUT_EN);
2640 else
2641 init_fw_cb->iscsi_opts &=
2642 cpu_to_le16(~ISCSIOPTS_DISCOVERY_LOGOUT_EN);
2643 break;
2644 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN:
2645 if (iface_param->iface_num & 0x1)
2646 break;
2647 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2648 init_fw_cb->iscsi_opts |=
2649 cpu_to_le16(ISCSIOPTS_STRICT_LOGIN_COMP_EN);
2650 else
2651 init_fw_cb->iscsi_opts &=
2652 cpu_to_le16(~ISCSIOPTS_STRICT_LOGIN_COMP_EN);
2653 break;
2654 default:
2655 ql4_printk(KERN_ERR, ha, "Unknown iscsi param = %d\n",
2656 iface_param->param);
2657 break;
2658 }
2659}
2660
d00efe3f
MC		 2661static void
2662qla4xxx_initcb_to_acb(struct addr_ctrl_blk *init_fw_cb)
2663{
2664 struct addr_ctrl_blk_def *acb;
2665 acb = (struct addr_ctrl_blk_def *)init_fw_cb;
2666 memset(acb->reserved1, 0, sizeof(acb->reserved1));
2667 memset(acb->reserved2, 0, sizeof(acb->reserved2));
2668 memset(acb->reserved3, 0, sizeof(acb->reserved3));
2669 memset(acb->reserved4, 0, sizeof(acb->reserved4));
2670 memset(acb->reserved5, 0, sizeof(acb->reserved5));
2671 memset(acb->reserved6, 0, sizeof(acb->reserved6));
2672 memset(acb->reserved7, 0, sizeof(acb->reserved7));
2673 memset(acb->reserved8, 0, sizeof(acb->reserved8));
2674 memset(acb->reserved9, 0, sizeof(acb->reserved9));
2675 memset(acb->reserved10, 0, sizeof(acb->reserved10));
2676 memset(acb->reserved11, 0, sizeof(acb->reserved11));
2677 memset(acb->reserved12, 0, sizeof(acb->reserved12));
2678 memset(acb->reserved13, 0, sizeof(acb->reserved13));
2679 memset(acb->reserved14, 0, sizeof(acb->reserved14));
2680 memset(acb->reserved15, 0, sizeof(acb->reserved15));
2681}
2682
2683static int
00c31889 2684qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data, uint32_t len)
d00efe3f
MC		 2685{
2686 struct scsi_qla_host *ha = to_qla_host(shost);
2687 int rval = 0;
2688 struct iscsi_iface_param_info *iface_param = NULL;
2689 struct addr_ctrl_blk *init_fw_cb = NULL;
2690 dma_addr_t init_fw_cb_dma;
2691 uint32_t mbox_cmd[MBOX_REG_COUNT];
2692 uint32_t mbox_sts[MBOX_REG_COUNT];
00c31889
MC		 2693 uint32_t rem = len;
2694 struct nlattr *attr;
d00efe3f
MC		 2695
2696 init_fw_cb = dma_alloc_coherent(&ha->pdev->dev,
2697 sizeof(struct addr_ctrl_blk),
2698 &init_fw_cb_dma, GFP_KERNEL);
2699 if (!init_fw_cb) {
2700 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc init_cb\n",
2701 __func__);
2702 return -ENOMEM;
2703 }
2704
2705 memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk));
2706 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
2707 memset(&mbox_sts, 0, sizeof(mbox_sts));
2708
2709 if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma)) {
2710 ql4_printk(KERN_ERR, ha, "%s: get ifcb failed\n", __func__);
2711 rval = -EIO;
2712 goto exit_init_fw_cb;
2713 }
2714
00c31889
MC		 2715 nla_for_each_attr(attr, data, len, rem) {
2716 iface_param = nla_data(attr);
d00efe3f 2717
f8e93412
HZ		 2718 if (iface_param->param_type == ISCSI_NET_PARAM) {
2719 switch (iface_param->iface_type) {
2720 case ISCSI_IFACE_TYPE_IPV4:
2721 switch (iface_param->iface_num) {
2722 case 0:
2723 qla4xxx_set_ipv4(ha, iface_param,
2724 init_fw_cb);
2725 break;
2726 default:
d00efe3f 2727 /* Cannot have more than one IPv4 interface */
f8e93412
HZ		 2728 ql4_printk(KERN_ERR, ha,
2729 "Invalid IPv4 iface number = %d\n",
2730 iface_param->iface_num);
2731 break;
2732 }
d00efe3f 2733 break;
f8e93412
HZ		 2734 case ISCSI_IFACE_TYPE_IPV6:
2735 switch (iface_param->iface_num) {
2736 case 0:
2737 case 1:
2738 qla4xxx_set_ipv6(ha, iface_param,
2739 init_fw_cb);
2740 break;
2741 default:
2742 /* Cannot have more than two IPv6 interface */
2743 ql4_printk(KERN_ERR, ha,
2744 "Invalid IPv6 iface number = %d\n",
2745 iface_param->iface_num);
2746 break;
2747 }
d00efe3f
MC		 2748 break;
2749 default:
f8e93412
HZ		 2750 ql4_printk(KERN_ERR, ha,
2751 "Invalid iface type\n");
d00efe3f
MC		 2752 break;
2753 }
f8e93412
HZ		 2754 } else if (iface_param->param_type == ISCSI_IFACE_PARAM) {
2755 qla4xxx_set_iscsi_param(ha, iface_param,
2756 init_fw_cb);
2757 } else {
2758 continue;
d00efe3f 2759 }
d00efe3f
MC		 2760 }
2761
2762 init_fw_cb->cookie = cpu_to_le32(0x11BEAD5A);
2763
2764 rval = qla4xxx_set_flash(ha, init_fw_cb_dma, FLASH_SEGMENT_IFCB,
2765 sizeof(struct addr_ctrl_blk),
2766 FLASH_OPT_RMW_COMMIT);
2767 if (rval != QLA_SUCCESS) {
2768 ql4_printk(KERN_ERR, ha, "%s: set flash mbx failed\n",
2769 __func__);
2770 rval = -EIO;
2771 goto exit_init_fw_cb;
2772 }
2773
ce505f9d
VC		 2774 rval = qla4xxx_disable_acb(ha);
2775 if (rval != QLA_SUCCESS) {
2776 ql4_printk(KERN_ERR, ha, "%s: disable acb mbx failed\n",
2777 __func__);
2778 rval = -EIO;
2779 goto exit_init_fw_cb;
2780 }
2781
2782 wait_for_completion_timeout(&ha->disable_acb_comp,
2783 DISABLE_ACB_TOV * HZ);
d00efe3f
MC		 2784
2785 qla4xxx_initcb_to_acb(init_fw_cb);
2786
2787 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma);
2788 if (rval != QLA_SUCCESS) {
2789 ql4_printk(KERN_ERR, ha, "%s: set acb mbx failed\n",
2790 __func__);
2791 rval = -EIO;
2792 goto exit_init_fw_cb;
2793 }
2794
2795 memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk));
2796 qla4xxx_update_local_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb,
2797 init_fw_cb_dma);
2798
2799exit_init_fw_cb:
2800 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk),
2801 init_fw_cb, init_fw_cb_dma);
2802
2803 return rval;
2804}
2805
fca9f04d
MC		 2806static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess,
2807 enum iscsi_param param, char *buf)
2808{
2809 struct iscsi_session *sess = cls_sess->dd_data;
2810 struct ddb_entry *ddb_entry = sess->dd_data;
2811 struct scsi_qla_host *ha = ddb_entry->ha;
97c2730c
AC		 2812 struct iscsi_cls_conn *cls_conn = ddb_entry->conn;
2813 struct ql4_chap_table chap_tbl;
fca9f04d
MC		 2814 int rval, len;
2815 uint16_t idx;
2816
97c2730c 2817 memset(&chap_tbl, 0, sizeof(chap_tbl));
fca9f04d
MC		 2818 switch (param) {
2819 case ISCSI_PARAM_CHAP_IN_IDX:
2820 rval = qla4xxx_get_chap_index(ha, sess->username_in,
2821 sess->password_in, BIDI_CHAP,
2822 &idx);
2823 if (rval)
c7a5e0d0
MR		 2824 len = sprintf(buf, "\n");
2825 else
2826 len = sprintf(buf, "%hu\n", idx);
fca9f04d
MC		 2827 break;
2828 case ISCSI_PARAM_CHAP_OUT_IDX:
97c2730c
AC		 2829 if (ddb_entry->ddb_type == FLASH_DDB) {
2830 if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) {
2831 idx = ddb_entry->chap_tbl_idx;
2832 rval = QLA_SUCCESS;
2833 } else {
2834 rval = QLA_ERROR;
2835 }
2836 } else {
2837 rval = qla4xxx_get_chap_index(ha, sess->username,
2838 sess->password,
2839 LOCAL_CHAP, &idx);
2840 }
fca9f04d 2841 if (rval)
c7a5e0d0
MR		 2842 len = sprintf(buf, "\n");
2843 else
2844 len = sprintf(buf, "%hu\n", idx);
fca9f04d 2845 break;
97c2730c
AC		 2846 case ISCSI_PARAM_USERNAME:
2847 case ISCSI_PARAM_PASSWORD:
2848 /* First, populate session username and password for FLASH DDB,
2849 * if not already done. This happens when session login fails
2850 * for a FLASH DDB.
2851 */
2852 if (ddb_entry->ddb_type == FLASH_DDB &&
2853 ddb_entry->chap_tbl_idx != INVALID_ENTRY &&
2854 !sess->username && !sess->password) {
2855 idx = ddb_entry->chap_tbl_idx;
2856 rval = qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name,
2857 chap_tbl.secret,
2858 idx);
2859 if (!rval) {
2860 iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME,
2861 (char *)chap_tbl.name,
2862 strlen((char *)chap_tbl.name));
2863 iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD,
2864 (char *)chap_tbl.secret,
2865 chap_tbl.secret_len);
2866 }
2867 }
2868 /* allow fall-through */
fca9f04d
MC		 2869 default:
2870 return iscsi_session_get_param(cls_sess, param, buf);
2871 }
2872
2873 return len;
2874}
2875
b3a271a9 2876static int qla4xxx_conn_get_param(struct iscsi_cls_conn *cls_conn,
afaf5a2d
DS		 2877 enum iscsi_param param, char *buf)
2878{
b3a271a9
MR		 2879 struct iscsi_conn *conn;
2880 struct qla_conn *qla_conn;
2881 struct sockaddr *dst_addr;
2882 int len = 0;
afaf5a2d 2883
b3a271a9
MR		 2884 conn = cls_conn->dd_data;
2885 qla_conn = conn->dd_data;
d46bdeb1 2886 dst_addr = (struct sockaddr *)&qla_conn->qla_ep->dst_addr;
afaf5a2d
DS		 2887
2888 switch (param) {
2889 case ISCSI_PARAM_CONN_PORT:
afaf5a2d 2890 case ISCSI_PARAM_CONN_ADDRESS:
b3a271a9
MR		 2891 return iscsi_conn_get_addr_param((struct sockaddr_storage *)
2892 dst_addr, param, buf);
afaf5a2d 2893 default:
b3a271a9 2894 return iscsi_conn_get_param(cls_conn, param, buf);
afaf5a2d
DS		 2895 }
2896
2897 return len;
b3a271a9 2898
afaf5a2d
DS		 2899}
2900
13483730
MC		 2901int qla4xxx_get_ddb_index(struct scsi_qla_host *ha, uint16_t *ddb_index)
2902{
2903 uint32_t mbx_sts = 0;
2904 uint16_t tmp_ddb_index;
2905 int ret;
2906
2907get_ddb_index:
2908 tmp_ddb_index = find_first_zero_bit(ha->ddb_idx_map, MAX_DDB_ENTRIES);
2909
2910 if (tmp_ddb_index >= MAX_DDB_ENTRIES) {
2911 DEBUG2(ql4_printk(KERN_INFO, ha,
2912 "Free DDB index not available\n"));
2913 ret = QLA_ERROR;
2914 goto exit_get_ddb_index;
2915 }
2916
2917 if (test_and_set_bit(tmp_ddb_index, ha->ddb_idx_map))
2918 goto get_ddb_index;
2919
2920 DEBUG2(ql4_printk(KERN_INFO, ha,
2921 "Found a free DDB index at %d\n", tmp_ddb_index));
2922 ret = qla4xxx_req_ddb_entry(ha, tmp_ddb_index, &mbx_sts);
2923 if (ret == QLA_ERROR) {
2924 if (mbx_sts == MBOX_STS_COMMAND_ERROR) {
2925 ql4_printk(KERN_INFO, ha,
2926 "DDB index = %d not available trying next\n",
2927 tmp_ddb_index);
2928 goto get_ddb_index;
2929 }
2930 DEBUG2(ql4_printk(KERN_INFO, ha,
2931 "Free FW DDB not available\n"));
2932 }
2933
2934 *ddb_index = tmp_ddb_index;
2935
2936exit_get_ddb_index:
2937 return ret;
2938}
2939
2940static int qla4xxx_match_ipaddress(struct scsi_qla_host *ha,
2941 struct ddb_entry *ddb_entry,
2942 char *existing_ipaddr,
2943 char *user_ipaddr)
2944{
2945 uint8_t dst_ipaddr[IPv6_ADDR_LEN];
2946 char formatted_ipaddr[DDB_IPADDR_LEN];
2947 int status = QLA_SUCCESS, ret = 0;
2948
2949 if (ddb_entry->fw_ddb_entry.options & DDB_OPT_IPV6_DEVICE) {
2950 ret = in6_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr,
2951 '\0', NULL);
2952 if (ret == 0) {
2953 status = QLA_ERROR;
2954 goto out_match;
2955 }
2956 ret = sprintf(formatted_ipaddr, "%pI6", dst_ipaddr);
2957 } else {
2958 ret = in4_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr,
2959 '\0', NULL);
2960 if (ret == 0) {
2961 status = QLA_ERROR;
2962 goto out_match;
2963 }
2964 ret = sprintf(formatted_ipaddr, "%pI4", dst_ipaddr);
2965 }
2966
2967 if (strcmp(existing_ipaddr, formatted_ipaddr))
2968 status = QLA_ERROR;
2969
2970out_match:
2971 return status;
2972}
2973
2974static int qla4xxx_match_fwdb_session(struct scsi_qla_host *ha,
2975 struct iscsi_cls_conn *cls_conn)
2976{
2977 int idx = 0, max_ddbs, rval;
2978 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
2979 struct iscsi_session *sess, *existing_sess;
2980 struct iscsi_conn *conn, *existing_conn;
2981 struct ddb_entry *ddb_entry;
2982
2983 sess = cls_sess->dd_data;
2984 conn = cls_conn->dd_data;
2985
2986 if (sess->targetname == NULL ||
2987 conn->persistent_address == NULL ||
2988 conn->persistent_port == 0)
2989 return QLA_ERROR;
2990
2991 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
2992 MAX_DEV_DB_ENTRIES;
2993
2994 for (idx = 0; idx < max_ddbs; idx++) {
2995 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
2996 if (ddb_entry == NULL)
2997 continue;
2998
2999 if (ddb_entry->ddb_type != FLASH_DDB)
3000 continue;
3001
3002 existing_sess = ddb_entry->sess->dd_data;
3003 existing_conn = ddb_entry->conn->dd_data;
3004
3005 if (existing_sess->targetname == NULL ||
3006 existing_conn->persistent_address == NULL ||
3007 existing_conn->persistent_port == 0)
3008 continue;
3009
3010 DEBUG2(ql4_printk(KERN_INFO, ha,
3011 "IQN = %s User IQN = %s\n",
3012 existing_sess->targetname,
3013 sess->targetname));
3014
3015 DEBUG2(ql4_printk(KERN_INFO, ha,
3016 "IP = %s User IP = %s\n",
3017 existing_conn->persistent_address,
3018 conn->persistent_address));
3019
3020 DEBUG2(ql4_printk(KERN_INFO, ha,
3021 "Port = %d User Port = %d\n",
3022 existing_conn->persistent_port,
3023 conn->persistent_port));
3024
3025 if (strcmp(existing_sess->targetname, sess->targetname))
3026 continue;
3027 rval = qla4xxx_match_ipaddress(ha, ddb_entry,
3028 existing_conn->persistent_address,
3029 conn->persistent_address);
3030 if (rval == QLA_ERROR)
3031 continue;
3032 if (existing_conn->persistent_port != conn->persistent_port)
3033 continue;
3034 break;
3035 }
3036
3037 if (idx == max_ddbs)
3038 return QLA_ERROR;
3039
3040 DEBUG2(ql4_printk(KERN_INFO, ha,
3041 "Match found in fwdb sessions\n"));
3042 return QLA_SUCCESS;
3043}
3044
b3a271a9
MR		 3045static struct iscsi_cls_session *
3046qla4xxx_session_create(struct iscsi_endpoint *ep,
3047 uint16_t cmds_max, uint16_t qdepth,
3048 uint32_t initial_cmdsn)
3049{
3050 struct iscsi_cls_session *cls_sess;
3051 struct scsi_qla_host *ha;
3052 struct qla_endpoint *qla_ep;
3053 struct ddb_entry *ddb_entry;
13483730 3054 uint16_t ddb_index;
b3a271a9
MR		 3055 struct iscsi_session *sess;
3056 struct sockaddr *dst_addr;
3057 int ret;
3058
b3a271a9
MR		 3059 if (!ep) {
3060 printk(KERN_ERR "qla4xxx: missing ep.\n");
3061 return NULL;
3062 }
3063
3064 qla_ep = ep->dd_data;
3065 dst_addr = (struct sockaddr *)&qla_ep->dst_addr;
3066 ha = to_qla_host(qla_ep->host);
c343c5e0
VC		 3067 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__,
3068 ha->host_no));
736cf369 3069
13483730
MC		 3070 ret = qla4xxx_get_ddb_index(ha, &ddb_index);
3071 if (ret == QLA_ERROR)
b3a271a9 3072 return NULL;
b3a271a9
MR		 3073
3074 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, qla_ep->host,
3075 cmds_max, sizeof(struct ddb_entry),
3076 sizeof(struct ql4_task_data),
3077 initial_cmdsn, ddb_index);
3078 if (!cls_sess)
3079 return NULL;
3080
3081 sess = cls_sess->dd_data;
3082 ddb_entry = sess->dd_data;
3083 ddb_entry->fw_ddb_index = ddb_index;
3084 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE;
3085 ddb_entry->ha = ha;
3086 ddb_entry->sess = cls_sess;
13483730
MC		 3087 ddb_entry->unblock_sess = qla4xxx_unblock_ddb;
3088 ddb_entry->ddb_change = qla4xxx_ddb_change;
de2efea6 3089 clear_bit(DDB_CONN_CLOSE_FAILURE, &ddb_entry->flags);
b3a271a9
MR		 3090 cls_sess->recovery_tmo = ql4xsess_recovery_tmo;
3091 ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry;
3092 ha->tot_ddbs++;
3093
3094 return cls_sess;
3095}
3096
3097static void qla4xxx_session_destroy(struct iscsi_cls_session *cls_sess)
3098{
3099 struct iscsi_session *sess;
3100 struct ddb_entry *ddb_entry;
3101 struct scsi_qla_host *ha;
90599b62
MR		 3102 unsigned long flags, wtime;
3103 struct dev_db_entry *fw_ddb_entry = NULL;
3104 dma_addr_t fw_ddb_entry_dma;
3105 uint32_t ddb_state;
3106 int ret;
b3a271a9 3107
b3a271a9
MR		 3108 sess = cls_sess->dd_data;
3109 ddb_entry = sess->dd_data;
3110 ha = ddb_entry->ha;
c343c5e0
VC		 3111 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__,
3112 ha->host_no));
b3a271a9 3113
90599b62
MR		 3114 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3115 &fw_ddb_entry_dma, GFP_KERNEL);
3116 if (!fw_ddb_entry) {
3117 ql4_printk(KERN_ERR, ha,
3118 "%s: Unable to allocate dma buffer\n", __func__);
3119 goto destroy_session;
3120 }
3121
3122 wtime = jiffies + (HZ * LOGOUT_TOV);
3123 do {
3124 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
3125 fw_ddb_entry, fw_ddb_entry_dma,
3126 NULL, NULL, &ddb_state, NULL,
3127 NULL, NULL);
3128 if (ret == QLA_ERROR)
3129 goto destroy_session;
3130
3131 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) ||
3132 (ddb_state == DDB_DS_SESSION_FAILED))
3133 goto destroy_session;
3134
3135 schedule_timeout_uninterruptible(HZ);
3136 } while ((time_after(wtime, jiffies)));
3137
3138destroy_session:
736cf369 3139 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
de2efea6
NJ		 3140 if (test_and_clear_bit(DDB_CONN_CLOSE_FAILURE, &ddb_entry->flags))
3141 clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map);
b3a271a9
MR		 3142 spin_lock_irqsave(&ha->hardware_lock, flags);
3143 qla4xxx_free_ddb(ha, ddb_entry);
3144 spin_unlock_irqrestore(&ha->hardware_lock, flags);
90599b62 3145
b3a271a9 3146 iscsi_session_teardown(cls_sess);
90599b62
MR		 3147
3148 if (fw_ddb_entry)
3149 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3150 fw_ddb_entry, fw_ddb_entry_dma);
b3a271a9
MR		 3151}
3152
b3a271a9
MR		 3153static struct iscsi_cls_conn *
3154qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx)
3155{
3156 struct iscsi_cls_conn *cls_conn;
3157 struct iscsi_session *sess;
3158 struct ddb_entry *ddb_entry;
c343c5e0 3159 struct scsi_qla_host *ha;
b3a271a9 3160
b3a271a9
MR		 3161 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn),
3162 conn_idx);
c343c5e0
VC		 3163 if (!cls_conn) {
3164 pr_info("%s: Can not create connection for conn_idx = %u\n",
3165 __func__, conn_idx);
ff1d0319 3166 return NULL;
c343c5e0 3167 }
ff1d0319 3168
b3a271a9
MR		 3169 sess = cls_sess->dd_data;
3170 ddb_entry = sess->dd_data;
3171 ddb_entry->conn = cls_conn;
3172
c343c5e0
VC		 3173 ha = ddb_entry->ha;
3174 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: conn_idx = %u\n", __func__,
3175 conn_idx));
b3a271a9
MR		 3176 return cls_conn;
3177}
3178
3179static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session,
3180 struct iscsi_cls_conn *cls_conn,
3181 uint64_t transport_fd, int is_leading)
3182{
3183 struct iscsi_conn *conn;
3184 struct qla_conn *qla_conn;
3185 struct iscsi_endpoint *ep;
c343c5e0
VC		 3186 struct ddb_entry *ddb_entry;
3187 struct scsi_qla_host *ha;
3188 struct iscsi_session *sess;
3189
3190 sess = cls_session->dd_data;
3191 ddb_entry = sess->dd_data;
3192 ha = ddb_entry->ha;
b3a271a9 3193
c343c5e0
VC		 3194 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: sid = %d, cid = %d\n", __func__,
3195 cls_session->sid, cls_conn->cid));
b3a271a9
MR		 3196
3197 if (iscsi_conn_bind(cls_session, cls_conn, is_leading))
3198 return -EINVAL;
3199 ep = iscsi_lookup_endpoint(transport_fd);
3200 conn = cls_conn->dd_data;
3201 qla_conn = conn->dd_data;
3202 qla_conn->qla_ep = ep->dd_data;
3203 return 0;
3204}
3205
3206static int qla4xxx_conn_start(struct iscsi_cls_conn *cls_conn)
3207{
3208 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
3209 struct iscsi_session *sess;
3210 struct ddb_entry *ddb_entry;
3211 struct scsi_qla_host *ha;
13483730 3212 struct dev_db_entry *fw_ddb_entry = NULL;
b3a271a9 3213 dma_addr_t fw_ddb_entry_dma;
b3a271a9
MR		 3214 uint32_t mbx_sts = 0;
3215 int ret = 0;
3216 int status = QLA_SUCCESS;
3217
b3a271a9
MR		 3218 sess = cls_sess->dd_data;
3219 ddb_entry = sess->dd_data;
3220 ha = ddb_entry->ha;
c343c5e0
VC		 3221 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: sid = %d, cid = %d\n", __func__,
3222 cls_sess->sid, cls_conn->cid));
b3a271a9 3223
13483730
MC		 3224 /* Check if we have matching FW DDB, if yes then do not
3225 * login to this target. This could cause target to logout previous
3226 * connection
3227 */
3228 ret = qla4xxx_match_fwdb_session(ha, cls_conn);
3229 if (ret == QLA_SUCCESS) {
3230 ql4_printk(KERN_INFO, ha,
3231 "Session already exist in FW.\n");
3232 ret = -EEXIST;
3233 goto exit_conn_start;
3234 }
3235
b3a271a9
MR		 3236 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3237 &fw_ddb_entry_dma, GFP_KERNEL);
3238 if (!fw_ddb_entry) {
3239 ql4_printk(KERN_ERR, ha,
3240 "%s: Unable to allocate dma buffer\n", __func__);
13483730
MC		 3241 ret = -ENOMEM;
3242 goto exit_conn_start;
b3a271a9
MR		 3243 }
3244
3245 ret = qla4xxx_set_param_ddbentry(ha, ddb_entry, cls_conn, &mbx_sts);
3246 if (ret) {
3247 /* If iscsid is stopped and started then no need to do
3248 * set param again since ddb state will be already
3249 * active and FW does not allow set ddb to an
3250 * active session.
3251 */
3252 if (mbx_sts)
3253 if (ddb_entry->fw_ddb_device_state ==
f922da79 3254 DDB_DS_SESSION_ACTIVE) {
13483730 3255 ddb_entry->unblock_sess(ddb_entry->sess);
b3a271a9 3256 goto exit_set_param;
f922da79 3257 }
b3a271a9
MR		 3258
3259 ql4_printk(KERN_ERR, ha, "%s: Failed set param for index[%d]\n",
3260 __func__, ddb_entry->fw_ddb_index);
3261 goto exit_conn_start;
3262 }
3263
3264 status = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index);
3265 if (status == QLA_ERROR) {
0e7e8501
MR		 3266 ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__,
3267 sess->targetname);
b3a271a9
MR		 3268 ret = -EINVAL;
3269 goto exit_conn_start;
3270 }
3271
98270ab4
MR		 3272 if (ddb_entry->fw_ddb_device_state == DDB_DS_NO_CONNECTION_ACTIVE)
3273 ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS;
3274
3275 DEBUG2(printk(KERN_INFO "%s: DDB state [%d]\n", __func__,
3276 ddb_entry->fw_ddb_device_state));
b3a271a9
MR		 3277
3278exit_set_param:
b3a271a9
MR		 3279 ret = 0;
3280
3281exit_conn_start:
13483730
MC		 3282 if (fw_ddb_entry)
3283 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3284 fw_ddb_entry, fw_ddb_entry_dma);
b3a271a9
MR		 3285 return ret;
3286}
3287
3288static void qla4xxx_conn_destroy(struct iscsi_cls_conn *cls_conn)
3289{
3290 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
3291 struct iscsi_session *sess;
3292 struct scsi_qla_host *ha;
3293 struct ddb_entry *ddb_entry;
3294 int options;
3295
b3a271a9
MR		 3296 sess = cls_sess->dd_data;
3297 ddb_entry = sess->dd_data;
3298 ha = ddb_entry->ha;
c343c5e0
VC		 3299 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: cid = %d\n", __func__,
3300 cls_conn->cid));
b3a271a9
MR		 3301
3302 options = LOGOUT_OPTION_CLOSE_SESSION;
3303 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR)
3304 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__);
b3a271a9
MR		 3305}
3306
3307static void qla4xxx_task_work(struct work_struct *wdata)
3308{
3309 struct ql4_task_data *task_data;
3310 struct scsi_qla_host *ha;
3311 struct passthru_status *sts;
3312 struct iscsi_task *task;
3313 struct iscsi_hdr *hdr;
3314 uint8_t *data;
3315 uint32_t data_len;
3316 struct iscsi_conn *conn;
3317 int hdr_len;
3318 itt_t itt;
3319
3320 task_data = container_of(wdata, struct ql4_task_data, task_work);
3321 ha = task_data->ha;
3322 task = task_data->task;
3323 sts = &task_data->sts;
3324 hdr_len = sizeof(struct iscsi_hdr);
3325
3326 DEBUG3(printk(KERN_INFO "Status returned\n"));
3327 DEBUG3(qla4xxx_dump_buffer(sts, 64));
3328 DEBUG3(printk(KERN_INFO "Response buffer"));
3329 DEBUG3(qla4xxx_dump_buffer(task_data->resp_buffer, 64));
3330
3331 conn = task->conn;
3332
3333 switch (sts->completionStatus) {
3334 case PASSTHRU_STATUS_COMPLETE:
3335 hdr = (struct iscsi_hdr *)task_data->resp_buffer;
3336 /* Assign back the itt in hdr, until we use the PREASSIGN_TAG */
3337 itt = sts->handle;
3338 hdr->itt = itt;
3339 data = task_data->resp_buffer + hdr_len;
3340 data_len = task_data->resp_len - hdr_len;
3341 iscsi_complete_pdu(conn, hdr, data, data_len);
3342 break;
3343 default:
3344 ql4_printk(KERN_ERR, ha, "Passthru failed status = 0x%x\n",
3345 sts->completionStatus);
3346 break;
3347 }
3348 return;
3349}
3350
3351static int qla4xxx_alloc_pdu(struct iscsi_task *task, uint8_t opcode)
3352{
3353 struct ql4_task_data *task_data;
3354 struct iscsi_session *sess;
3355 struct ddb_entry *ddb_entry;
3356 struct scsi_qla_host *ha;
3357 int hdr_len;
3358
3359 sess = task->conn->session;
3360 ddb_entry = sess->dd_data;
3361 ha = ddb_entry->ha;
3362 task_data = task->dd_data;
3363 memset(task_data, 0, sizeof(struct ql4_task_data));
3364
3365 if (task->sc) {
3366 ql4_printk(KERN_INFO, ha,
3367 "%s: SCSI Commands not implemented\n", __func__);
3368 return -EINVAL;
3369 }
3370
3371 hdr_len = sizeof(struct iscsi_hdr);
3372 task_data->ha = ha;
3373 task_data->task = task;
3374
3375 if (task->data_count) {
3376 task_data->data_dma = dma_map_single(&ha->pdev->dev, task->data,
3377 task->data_count,
3378 PCI_DMA_TODEVICE);
3379 }
3380
3381 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n",
3382 __func__, task->conn->max_recv_dlength, hdr_len));
3383
69ca216e 3384 task_data->resp_len = task->conn->max_recv_dlength + hdr_len;
b3a271a9
MR		 3385 task_data->resp_buffer = dma_alloc_coherent(&ha->pdev->dev,
3386 task_data->resp_len,
3387 &task_data->resp_dma,
3388 GFP_ATOMIC);
3389 if (!task_data->resp_buffer)
3390 goto exit_alloc_pdu;
3391
69ca216e 3392 task_data->req_len = task->data_count + hdr_len;
b3a271a9 3393 task_data->req_buffer = dma_alloc_coherent(&ha->pdev->dev,
69ca216e 3394 task_data->req_len,
b3a271a9
MR		 3395 &task_data->req_dma,
3396 GFP_ATOMIC);
3397 if (!task_data->req_buffer)
3398 goto exit_alloc_pdu;
3399
3400 task->hdr = task_data->req_buffer;
3401
3402 INIT_WORK(&task_data->task_work, qla4xxx_task_work);
3403
3404 return 0;
3405
3406exit_alloc_pdu:
3407 if (task_data->resp_buffer)
3408 dma_free_coherent(&ha->pdev->dev, task_data->resp_len,
3409 task_data->resp_buffer, task_data->resp_dma);
3410
3411 if (task_data->req_buffer)
69ca216e 3412 dma_free_coherent(&ha->pdev->dev, task_data->req_len,
b3a271a9
MR		 3413 task_data->req_buffer, task_data->req_dma);
3414 return -ENOMEM;
3415}
3416
3417static void qla4xxx_task_cleanup(struct iscsi_task *task)
3418{
3419 struct ql4_task_data *task_data;
3420 struct iscsi_session *sess;
3421 struct ddb_entry *ddb_entry;
3422 struct scsi_qla_host *ha;
3423 int hdr_len;
3424
3425 hdr_len = sizeof(struct iscsi_hdr);
3426 sess = task->conn->session;
3427 ddb_entry = sess->dd_data;
3428 ha = ddb_entry->ha;
3429 task_data = task->dd_data;
3430
3431 if (task->data_count) {
3432 dma_unmap_single(&ha->pdev->dev, task_data->data_dma,
3433 task->data_count, PCI_DMA_TODEVICE);
3434 }
3435
3436 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n",
3437 __func__, task->conn->max_recv_dlength, hdr_len));
3438
3439 dma_free_coherent(&ha->pdev->dev, task_data->resp_len,
3440 task_data->resp_buffer, task_data->resp_dma);
69ca216e 3441 dma_free_coherent(&ha->pdev->dev, task_data->req_len,
b3a271a9
MR		 3442 task_data->req_buffer, task_data->req_dma);
3443 return;
3444}
3445
3446static int qla4xxx_task_xmit(struct iscsi_task *task)
3447{
3448 struct scsi_cmnd *sc = task->sc;
3449 struct iscsi_session *sess = task->conn->session;
3450 struct ddb_entry *ddb_entry = sess->dd_data;
3451 struct scsi_qla_host *ha = ddb_entry->ha;
3452
3453 if (!sc)
3454 return qla4xxx_send_passthru0(task);
3455
3456 ql4_printk(KERN_INFO, ha, "%s: scsi cmd xmit not implemented\n",
3457 __func__);
3458 return -ENOSYS;
3459}
3460
1e9e2be3
AC		 3461static int qla4xxx_copy_from_fwddb_param(struct iscsi_bus_flash_session *sess,
3462 struct iscsi_bus_flash_conn *conn,
3463 struct dev_db_entry *fw_ddb_entry)
3464{
3465 unsigned long options = 0;
3466 int rc = 0;
3467
3468 options = le16_to_cpu(fw_ddb_entry->options);
3469 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options);
3470 if (test_bit(OPT_IPV6_DEVICE, &options)) {
c962c18b
AC		 3471 rc = iscsi_switch_str_param(&sess->portal_type,
3472 PORTAL_TYPE_IPV6);
1e9e2be3
AC		 3473 if (rc)
3474 goto exit_copy;
3475 } else {
c962c18b
AC		 3476 rc = iscsi_switch_str_param(&sess->portal_type,
3477 PORTAL_TYPE_IPV4);
1e9e2be3
AC		 3478 if (rc)
3479 goto exit_copy;
3480 }
3481
3482 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE,
3483 &options);
3484 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options);
3485 sess->entry_state = test_bit(OPT_ENTRY_STATE, &options);
3486
3487 options = le16_to_cpu(fw_ddb_entry->iscsi_options);
3488 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options);
3489 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options);
3490 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options);
3491 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options);
3492 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER,
3493 &options);
3494 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options);
3495 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options);
3496 conn->snack_req_en = test_bit(ISCSIOPT_SNACK_REQ_EN, &options);
3497 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN,
3498 &options);
3499 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options);
3500 sess->discovery_auth_optional =
3501 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options);
3502 if (test_bit(ISCSIOPT_ERL1, &options))
3503 sess->erl |= BIT_1;
3504 if (test_bit(ISCSIOPT_ERL0, &options))
3505 sess->erl |= BIT_0;
3506
3507 options = le16_to_cpu(fw_ddb_entry->tcp_options);
3508 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options);
3509 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options);
3510 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options);
3511 if (test_bit(TCPOPT_TIMER_SCALE3, &options))
3512 conn->tcp_timer_scale |= BIT_3;
3513 if (test_bit(TCPOPT_TIMER_SCALE2, &options))
3514 conn->tcp_timer_scale |= BIT_2;
3515 if (test_bit(TCPOPT_TIMER_SCALE1, &options))
3516 conn->tcp_timer_scale |= BIT_1;
3517
3518 conn->tcp_timer_scale >>= 1;
3519 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options);
3520
3521 options = le16_to_cpu(fw_ddb_entry->ip_options);
3522 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options);
3523
3524 conn->max_recv_dlength = BYTE_UNITS *
3525 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len);
3526 conn->max_xmit_dlength = BYTE_UNITS *
3527 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len);
3528 sess->first_burst = BYTE_UNITS *
3529 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len);
3530 sess->max_burst = BYTE_UNITS *
3531 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len);
3532 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t);
3533 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
3534 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain);
3535 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
3536 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss);
3537 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf;
3538 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf;
3539 conn->ipv6_flow_label = le16_to_cpu(fw_ddb_entry->ipv6_flow_lbl);
3540 conn->keepalive_timeout = le16_to_cpu(fw_ddb_entry->ka_timeout);
3541 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port);
3542 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn);
3543 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn);
3544 sess->discovery_parent_idx = le16_to_cpu(fw_ddb_entry->ddb_link);
3545 sess->discovery_parent_type = le16_to_cpu(fw_ddb_entry->ddb_link);
3546 sess->chap_out_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
3547 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid);
3548
3549 sess->default_taskmgmt_timeout =
3550 le16_to_cpu(fw_ddb_entry->def_timeout);
3551 conn->port = le16_to_cpu(fw_ddb_entry->port);
3552
3553 options = le16_to_cpu(fw_ddb_entry->options);
3554 conn->ipaddress = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL);
3555 if (!conn->ipaddress) {
3556 rc = -ENOMEM;
3557 goto exit_copy;
3558 }
3559
3560 conn->redirect_ipaddr = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL);
3561 if (!conn->redirect_ipaddr) {
3562 rc = -ENOMEM;
3563 goto exit_copy;
3564 }
3565
3566 memcpy(conn->ipaddress, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN);
3567 memcpy(conn->redirect_ipaddr, fw_ddb_entry->tgt_addr, IPv6_ADDR_LEN);
3568
3569 if (test_bit(OPT_IPV6_DEVICE, &options)) {
3570 conn->ipv6_traffic_class = fw_ddb_entry->ipv4_tos;
3571
3572 conn->link_local_ipv6_addr = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL);
3573 if (!conn->link_local_ipv6_addr) {
3574 rc = -ENOMEM;
3575 goto exit_copy;
3576 }
3577
3578 memcpy(conn->link_local_ipv6_addr,
3579 fw_ddb_entry->link_local_ipv6_addr, IPv6_ADDR_LEN);
3580 } else {
3581 conn->ipv4_tos = fw_ddb_entry->ipv4_tos;
3582 }
3583
3584 if (fw_ddb_entry->iscsi_name[0]) {
3585 rc = iscsi_switch_str_param(&sess->targetname,
3586 (char *)fw_ddb_entry->iscsi_name);
3587 if (rc)
3588 goto exit_copy;
3589 }
3590
3591 if (fw_ddb_entry->iscsi_alias[0]) {
3592 rc = iscsi_switch_str_param(&sess->targetalias,
3593 (char *)fw_ddb_entry->iscsi_alias);
3594 if (rc)
3595 goto exit_copy;
3596 }
3597
3598 COPY_ISID(sess->isid, fw_ddb_entry->isid);
3599
3600exit_copy:
3601 return rc;
3602}
3603
3604static int qla4xxx_copy_to_fwddb_param(struct iscsi_bus_flash_session *sess,
3605 struct iscsi_bus_flash_conn *conn,
3606 struct dev_db_entry *fw_ddb_entry)
3607{
3608 uint16_t options;
3609 int rc = 0;
3610
3611 options = le16_to_cpu(fw_ddb_entry->options);
3612 SET_BITVAL(conn->is_fw_assigned_ipv6, options, BIT_11);
c962c18b 3613 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4))
1e9e2be3
AC		 3614 options |= BIT_8;
3615 else
3616 options &= ~BIT_8;
3617
3618 SET_BITVAL(sess->auto_snd_tgt_disable, options, BIT_6);
3619 SET_BITVAL(sess->discovery_sess, options, BIT_4);
3620 SET_BITVAL(sess->entry_state, options, BIT_3);
3621 fw_ddb_entry->options = cpu_to_le16(options);
3622
3623 options = le16_to_cpu(fw_ddb_entry->iscsi_options);
3624 SET_BITVAL(conn->hdrdgst_en, options, BIT_13);
3625 SET_BITVAL(conn->datadgst_en, options, BIT_12);
3626 SET_BITVAL(sess->imm_data_en, options, BIT_11);
3627 SET_BITVAL(sess->initial_r2t_en, options, BIT_10);
3628 SET_BITVAL(sess->dataseq_inorder_en, options, BIT_9);
3629 SET_BITVAL(sess->pdu_inorder_en, options, BIT_8);
3630 SET_BITVAL(sess->chap_auth_en, options, BIT_7);
3631 SET_BITVAL(conn->snack_req_en, options, BIT_6);
3632 SET_BITVAL(sess->discovery_logout_en, options, BIT_5);
3633 SET_BITVAL(sess->bidi_chap_en, options, BIT_4);
3634 SET_BITVAL(sess->discovery_auth_optional, options, BIT_3);
3635 SET_BITVAL(sess->erl & BIT_1, options, BIT_1);
3636 SET_BITVAL(sess->erl & BIT_0, options, BIT_0);
3637 fw_ddb_entry->iscsi_options = cpu_to_le16(options);
3638
3639 options = le16_to_cpu(fw_ddb_entry->tcp_options);
3640 SET_BITVAL(conn->tcp_timestamp_stat, options, BIT_6);
3641 SET_BITVAL(conn->tcp_nagle_disable, options, BIT_5);
3642 SET_BITVAL(conn->tcp_wsf_disable, options, BIT_4);
3643 SET_BITVAL(conn->tcp_timer_scale & BIT_2, options, BIT_3);
3644 SET_BITVAL(conn->tcp_timer_scale & BIT_1, options, BIT_2);
3645 SET_BITVAL(conn->tcp_timer_scale & BIT_0, options, BIT_1);
3646 SET_BITVAL(conn->tcp_timestamp_en, options, BIT_0);
3647 fw_ddb_entry->tcp_options = cpu_to_le16(options);
3648
3649 options = le16_to_cpu(fw_ddb_entry->ip_options);
3650 SET_BITVAL(conn->fragment_disable, options, BIT_4);
3651 fw_ddb_entry->ip_options = cpu_to_le16(options);
3652
3653 fw_ddb_entry->iscsi_max_outsnd_r2t = cpu_to_le16(sess->max_r2t);
3654 fw_ddb_entry->iscsi_max_rcv_data_seg_len =
3655 cpu_to_le16(conn->max_recv_dlength / BYTE_UNITS);
3656 fw_ddb_entry->iscsi_max_snd_data_seg_len =
3657 cpu_to_le16(conn->max_xmit_dlength / BYTE_UNITS);
3658 fw_ddb_entry->iscsi_first_burst_len =
3659 cpu_to_le16(sess->first_burst / BYTE_UNITS);
3660 fw_ddb_entry->iscsi_max_burst_len = cpu_to_le16(sess->max_burst /
3661 BYTE_UNITS);
3662 fw_ddb_entry->iscsi_def_time2wait = cpu_to_le16(sess->time2wait);
3663 fw_ddb_entry->iscsi_def_time2retain = cpu_to_le16(sess->time2retain);
3664 fw_ddb_entry->tgt_portal_grp = cpu_to_le16(sess->tpgt);
3665 fw_ddb_entry->mss = cpu_to_le16(conn->max_segment_size);
fbcd4836
AC		 3666 fw_ddb_entry->tcp_xmt_wsf = (uint8_t) cpu_to_le32(conn->tcp_xmit_wsf);
3667 fw_ddb_entry->tcp_rcv_wsf = (uint8_t) cpu_to_le32(conn->tcp_recv_wsf);
1e9e2be3
AC		 3668 fw_ddb_entry->ipv6_flow_lbl = cpu_to_le16(conn->ipv6_flow_label);
3669 fw_ddb_entry->ka_timeout = cpu_to_le16(conn->keepalive_timeout);
3670 fw_ddb_entry->lcl_port = cpu_to_le16(conn->local_port);
fbcd4836
AC		 3671 fw_ddb_entry->stat_sn = cpu_to_le32(conn->statsn);
3672 fw_ddb_entry->exp_stat_sn = cpu_to_le32(conn->exp_statsn);
65560166 3673 fw_ddb_entry->ddb_link = cpu_to_le16(sess->discovery_parent_idx);
1e9e2be3
AC		 3674 fw_ddb_entry->chap_tbl_idx = cpu_to_le16(sess->chap_out_idx);
3675 fw_ddb_entry->tsid = cpu_to_le16(sess->tsid);
3676 fw_ddb_entry->port = cpu_to_le16(conn->port);
3677 fw_ddb_entry->def_timeout =
3678 cpu_to_le16(sess->default_taskmgmt_timeout);
3679
84595802
AC		 3680 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4))
3681 fw_ddb_entry->ipv4_tos = conn->ipv6_traffic_class;
3682 else
3683 fw_ddb_entry->ipv4_tos = conn->ipv4_tos;
3684
1e9e2be3
AC		 3685 if (conn->ipaddress)
3686 memcpy(fw_ddb_entry->ip_addr, conn->ipaddress,
3687 sizeof(fw_ddb_entry->ip_addr));
3688
3689 if (conn->redirect_ipaddr)
3690 memcpy(fw_ddb_entry->tgt_addr, conn->redirect_ipaddr,
3691 sizeof(fw_ddb_entry->tgt_addr));
3692
3693 if (conn->link_local_ipv6_addr)
3694 memcpy(fw_ddb_entry->link_local_ipv6_addr,
3695 conn->link_local_ipv6_addr,
3696 sizeof(fw_ddb_entry->link_local_ipv6_addr));
3697
3698 if (sess->targetname)
3699 memcpy(fw_ddb_entry->iscsi_name, sess->targetname,
3700 sizeof(fw_ddb_entry->iscsi_name));
3701
3702 if (sess->targetalias)
3703 memcpy(fw_ddb_entry->iscsi_alias, sess->targetalias,
3704 sizeof(fw_ddb_entry->iscsi_alias));
3705
3706 COPY_ISID(fw_ddb_entry->isid, sess->isid);
3707
3708 return rc;
3709}
3710
8cc91d42
AC		 3711static void qla4xxx_copy_to_sess_conn_params(struct iscsi_conn *conn,
3712 struct iscsi_session *sess,
3713 struct dev_db_entry *fw_ddb_entry)
3714{
3715 unsigned long options = 0;
3716 uint16_t ddb_link;
3717 uint16_t disc_parent;
fb734ee3 3718 char ip_addr[DDB_IPADDR_LEN];
8cc91d42
AC		 3719
3720 options = le16_to_cpu(fw_ddb_entry->options);
3721 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options);
3722 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE,
3723 &options);
3724 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options);
3725
3726 options = le16_to_cpu(fw_ddb_entry->iscsi_options);
3727 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options);
3728 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options);
3729 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options);
3730 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options);
3731 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER,
3732 &options);
3733 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options);
3734 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options);
3735 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN,
3736 &options);
3737 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options);
3738 sess->discovery_auth_optional =
3739 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options);
3740 if (test_bit(ISCSIOPT_ERL1, &options))
3741 sess->erl |= BIT_1;
3742 if (test_bit(ISCSIOPT_ERL0, &options))
3743 sess->erl |= BIT_0;
3744
3745 options = le16_to_cpu(fw_ddb_entry->tcp_options);
3746 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options);
3747 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options);
3748 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options);
3749 if (test_bit(TCPOPT_TIMER_SCALE3, &options))
3750 conn->tcp_timer_scale |= BIT_3;
3751 if (test_bit(TCPOPT_TIMER_SCALE2, &options))
3752 conn->tcp_timer_scale |= BIT_2;
3753 if (test_bit(TCPOPT_TIMER_SCALE1, &options))
3754 conn->tcp_timer_scale |= BIT_1;
3755
3756 conn->tcp_timer_scale >>= 1;
3757 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options);
3758
3759 options = le16_to_cpu(fw_ddb_entry->ip_options);
3760 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options);
3761
3762 conn->max_recv_dlength = BYTE_UNITS *
3763 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len);
3764 conn->max_xmit_dlength = BYTE_UNITS *
3765 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len);
3766 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t);
3767 sess->first_burst = BYTE_UNITS *
3768 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len);
3769 sess->max_burst = BYTE_UNITS *
3770 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len);
3771 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
3772 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain);
3773 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
3774 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss);
3775 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf;
3776 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf;
3777 conn->ipv4_tos = fw_ddb_entry->ipv4_tos;
3778 conn->keepalive_tmo = le16_to_cpu(fw_ddb_entry->ka_timeout);
3779 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port);
3780 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn);
3781 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn);
3782 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid);
3783 COPY_ISID(sess->isid, fw_ddb_entry->isid);
3784
3785 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
8cc91d42
AC		 3786 if (ddb_link == DDB_ISNS)
3787 disc_parent = ISCSI_DISC_PARENT_ISNS;
3788 else if (ddb_link == DDB_NO_LINK)
3789 disc_parent = ISCSI_DISC_PARENT_UNKNOWN;
3790 else if (ddb_link < MAX_DDB_ENTRIES)
3791 disc_parent = ISCSI_DISC_PARENT_SENDTGT;
3792 else
3793 disc_parent = ISCSI_DISC_PARENT_UNKNOWN;
3794
3795 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_DISCOVERY_PARENT_TYPE,
3796 iscsi_get_discovery_parent_name(disc_parent), 0);
3797
3798 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_TARGET_ALIAS,
3799 (char *)fw_ddb_entry->iscsi_alias, 0);
fb734ee3
AC		 3800
3801 options = le16_to_cpu(fw_ddb_entry->options);
3802 if (options & DDB_OPT_IPV6_DEVICE) {
3803 memset(ip_addr, 0, sizeof(ip_addr));
3804 sprintf(ip_addr, "%pI6", fw_ddb_entry->link_local_ipv6_addr);
3805 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_LOCAL_IPADDR,
3806 (char *)ip_addr, 0);
3807 }
8cc91d42
AC		 3808}
3809
13483730
MC		 3810static void qla4xxx_copy_fwddb_param(struct scsi_qla_host *ha,
3811 struct dev_db_entry *fw_ddb_entry,
3812 struct iscsi_cls_session *cls_sess,
3813 struct iscsi_cls_conn *cls_conn)
3814{
3815 int buflen = 0;
3816 struct iscsi_session *sess;
376738af 3817 struct ddb_entry *ddb_entry;
946ac571 3818 struct ql4_chap_table chap_tbl;
13483730
MC		 3819 struct iscsi_conn *conn;
3820 char ip_addr[DDB_IPADDR_LEN];
3821 uint16_t options = 0;
3822
3823 sess = cls_sess->dd_data;
376738af 3824 ddb_entry = sess->dd_data;
13483730 3825 conn = cls_conn->dd_data;
946ac571 3826 memset(&chap_tbl, 0, sizeof(chap_tbl));
13483730 3827
376738af
NJ		 3828 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
3829
8cc91d42 3830 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry);
13483730 3831
8cc91d42 3832 sess->def_taskmgmt_tmo = le16_to_cpu(fw_ddb_entry->def_timeout);
13483730
MC		 3833 conn->persistent_port = le16_to_cpu(fw_ddb_entry->port);
3834
8cc91d42 3835 memset(ip_addr, 0, sizeof(ip_addr));
13483730 3836 options = le16_to_cpu(fw_ddb_entry->options);
8cc91d42
AC		 3837 if (options & DDB_OPT_IPV6_DEVICE) {
3838 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv6", 4);
3839
3840 memset(ip_addr, 0, sizeof(ip_addr));
13483730 3841 sprintf(ip_addr, "%pI6", fw_ddb_entry->ip_addr);
8cc91d42
AC		 3842 } else {
3843 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv4", 4);
13483730 3844 sprintf(ip_addr, "%pI4", fw_ddb_entry->ip_addr);
8cc91d42 3845 }
13483730 3846
8cc91d42
AC		 3847 iscsi_set_param(cls_conn, ISCSI_PARAM_PERSISTENT_ADDRESS,
3848 (char *)ip_addr, buflen);
13483730
MC		 3849 iscsi_set_param(cls_conn, ISCSI_PARAM_TARGET_NAME,
3850 (char *)fw_ddb_entry->iscsi_name, buflen);
3851 iscsi_set_param(cls_conn, ISCSI_PARAM_INITIATOR_NAME,
3852 (char *)ha->name_string, buflen);
946ac571
AC		 3853
3854 if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) {
3855 if (!qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name,
3856 chap_tbl.secret,
3857 ddb_entry->chap_tbl_idx)) {
3858 iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME,
3859 (char *)chap_tbl.name,
3860 strlen((char *)chap_tbl.name));
3861 iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD,
3862 (char *)chap_tbl.secret,
3863 chap_tbl.secret_len);
3864 }
3865 }
13483730
MC		 3866}
3867
3868void qla4xxx_update_session_conn_fwddb_param(struct scsi_qla_host *ha,
3869 struct ddb_entry *ddb_entry)
3870{
3871 struct iscsi_cls_session *cls_sess;
3872 struct iscsi_cls_conn *cls_conn;
3873 uint32_t ddb_state;
3874 dma_addr_t fw_ddb_entry_dma;
3875 struct dev_db_entry *fw_ddb_entry;
3876
3877 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3878 &fw_ddb_entry_dma, GFP_KERNEL);
3879 if (!fw_ddb_entry) {
3880 ql4_printk(KERN_ERR, ha,
3881 "%s: Unable to allocate dma buffer\n", __func__);
3882 goto exit_session_conn_fwddb_param;
3883 }
3884
3885 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry,
3886 fw_ddb_entry_dma, NULL, NULL, &ddb_state,
3887 NULL, NULL, NULL) == QLA_ERROR) {
3888 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
3889 "get_ddb_entry for fw_ddb_index %d\n",
3890 ha->host_no, __func__,
3891 ddb_entry->fw_ddb_index));
3892 goto exit_session_conn_fwddb_param;
3893 }
3894
3895 cls_sess = ddb_entry->sess;
3896
3897 cls_conn = ddb_entry->conn;
3898
3899 /* Update params */
3900 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn);
3901
3902exit_session_conn_fwddb_param:
3903 if (fw_ddb_entry)
3904 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3905 fw_ddb_entry, fw_ddb_entry_dma);
3906}
3907
b3a271a9
MR		 3908void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha,
3909 struct ddb_entry *ddb_entry)
3910{
3911 struct iscsi_cls_session *cls_sess;
3912 struct iscsi_cls_conn *cls_conn;
3913 struct iscsi_session *sess;
3914 struct iscsi_conn *conn;
3915 uint32_t ddb_state;
3916 dma_addr_t fw_ddb_entry_dma;
3917 struct dev_db_entry *fw_ddb_entry;
3918
3919 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3920 &fw_ddb_entry_dma, GFP_KERNEL);
3921 if (!fw_ddb_entry) {
3922 ql4_printk(KERN_ERR, ha,
3923 "%s: Unable to allocate dma buffer\n", __func__);
13483730 3924 goto exit_session_conn_param;
b3a271a9
MR		 3925 }
3926
3927 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry,
3928 fw_ddb_entry_dma, NULL, NULL, &ddb_state,
3929 NULL, NULL, NULL) == QLA_ERROR) {
3930 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
3931 "get_ddb_entry for fw_ddb_index %d\n",
3932 ha->host_no, __func__,
3933 ddb_entry->fw_ddb_index));
13483730 3934 goto exit_session_conn_param;
b3a271a9
MR		 3935 }
3936
3937 cls_sess = ddb_entry->sess;
3938 sess = cls_sess->dd_data;
3939
3940 cls_conn = ddb_entry->conn;
3941 conn = cls_conn->dd_data;
3942
13483730
MC		 3943 /* Update timers after login */
3944 ddb_entry->default_relogin_timeout =
c28eaaca
NJ		 3945 (le16_to_cpu(fw_ddb_entry->def_timeout) > LOGIN_TOV) &&
3946 (le16_to_cpu(fw_ddb_entry->def_timeout) < LOGIN_TOV * 10) ?
3947 le16_to_cpu(fw_ddb_entry->def_timeout) : LOGIN_TOV;
13483730
MC		 3948 ddb_entry->default_time2wait =
3949 le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
3950
b3a271a9 3951 /* Update params */
376738af 3952 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
8cc91d42 3953 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry);
b3a271a9
MR		 3954
3955 memcpy(sess->initiatorname, ha->name_string,
3956 min(sizeof(ha->name_string), sizeof(sess->initiatorname)));
13483730
MC		 3957
3958exit_session_conn_param:
3959 if (fw_ddb_entry)
3960 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3961 fw_ddb_entry, fw_ddb_entry_dma);
b3a271a9
MR		 3962}
3963
afaf5a2d
DS		 3964/*
3965 * Timer routines
3966 */
3967
3968static void qla4xxx_start_timer(struct scsi_qla_host *ha, void *func,
3969 unsigned long interval)
3970{
3971 DEBUG(printk("scsi: %s: Starting timer thread for adapter %d\n",
3972 __func__, ha->host->host_no));
3973 init_timer(&ha->timer);
3974 ha->timer.expires = jiffies + interval * HZ;
3975 ha->timer.data = (unsigned long)ha;
3976 ha->timer.function = (void (*)(unsigned long))func;
3977 add_timer(&ha->timer);
3978 ha->timer_active = 1;
3979}
3980
3981static void qla4xxx_stop_timer(struct scsi_qla_host *ha)
3982{
3983 del_timer_sync(&ha->timer);
3984 ha->timer_active = 0;
3985}
3986
3987/***
b3a271a9
MR		 3988 * qla4xxx_mark_device_missing - blocks the session
3989 * @cls_session: Pointer to the session to be blocked
afaf5a2d
DS		 3990 * @ddb_entry: Pointer to device database entry
3991 *
f4f5df23 3992 * This routine marks a device missing and close connection.
afaf5a2d 3993 **/
b3a271a9 3994void qla4xxx_mark_device_missing(struct iscsi_cls_session *cls_session)
afaf5a2d 3995{
b3a271a9 3996 iscsi_block_session(cls_session);
afaf5a2d
DS		 3997}
3998
f4f5df23
VC		 3999/**
4000 * qla4xxx_mark_all_devices_missing - mark all devices as missing.
4001 * @ha: Pointer to host adapter structure.
4002 *
4003 * This routine marks a device missing and resets the relogin retry count.
4004 **/
4005void qla4xxx_mark_all_devices_missing(struct scsi_qla_host *ha)
4006{
b3a271a9 4007 iscsi_host_for_each_session(ha->host, qla4xxx_mark_device_missing);
f4f5df23
VC		 4008}
4009
afaf5a2d
DS		 4010static struct srb* qla4xxx_get_new_srb(struct scsi_qla_host *ha,
4011 struct ddb_entry *ddb_entry,
8f0722ca 4012 struct scsi_cmnd *cmd)
afaf5a2d
DS		 4013{
4014 struct srb *srb;
4015
4016 srb = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
4017 if (!srb)
4018 return srb;
4019
09a0f719 4020 kref_init(&srb->srb_ref);
afaf5a2d
DS		 4021 srb->ha = ha;
4022 srb->ddb = ddb_entry;
4023 srb->cmd = cmd;
4024 srb->flags = 0;
5369887a 4025 CMD_SP(cmd) = (void *)srb;
afaf5a2d
DS		 4026
4027 return srb;
4028}
4029
4030static void qla4xxx_srb_free_dma(struct scsi_qla_host *ha, struct srb *srb)
4031{
4032 struct scsi_cmnd *cmd = srb->cmd;
4033
4034 if (srb->flags & SRB_DMA_VALID) {
5f7186c8 4035 scsi_dma_unmap(cmd);
afaf5a2d
DS		 4036 srb->flags &= ~SRB_DMA_VALID;
4037 }
5369887a 4038 CMD_SP(cmd) = NULL;
afaf5a2d
DS		 4039}
4040
09a0f719 4041void qla4xxx_srb_compl(struct kref *ref)
afaf5a2d 4042{
09a0f719 4043 struct srb *srb = container_of(ref, struct srb, srb_ref);
afaf5a2d 4044 struct scsi_cmnd *cmd = srb->cmd;
09a0f719 4045 struct scsi_qla_host *ha = srb->ha;
afaf5a2d
DS		 4046
4047 qla4xxx_srb_free_dma(ha, srb);
4048
4049 mempool_free(srb, ha->srb_mempool);
4050
4051 cmd->scsi_done(cmd);
4052}
4053
4054/**
4055 * qla4xxx_queuecommand - scsi layer issues scsi command to driver.
8f0722ca 4056 * @host: scsi host
afaf5a2d 4057 * @cmd: Pointer to Linux's SCSI command structure
afaf5a2d
DS		 4058 *
4059 * Remarks:
4060 * This routine is invoked by Linux to send a SCSI command to the driver.
4061 * The mid-level driver tries to ensure that queuecommand never gets
4062 * invoked concurrently with itself or the interrupt handler (although
4063 * the interrupt handler may call this routine as part of request-
4064 * completion handling). Unfortunely, it sometimes calls the scheduler
4065 * in interrupt context which is a big NO! NO!.
4066 **/
8f0722ca 4067static int qla4xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
afaf5a2d 4068{
8f0722ca 4069 struct scsi_qla_host *ha = to_qla_host(host);
afaf5a2d 4070 struct ddb_entry *ddb_entry = cmd->device->hostdata;
7fb1921b 4071 struct iscsi_cls_session *sess = ddb_entry->sess;
afaf5a2d
DS		 4072 struct srb *srb;
4073 int rval;
4074
2232be0d
LC		 4075 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
4076 if (test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags))
4077 cmd->result = DID_NO_CONNECT << 16;
4078 else
4079 cmd->result = DID_REQUEUE << 16;
4080 goto qc_fail_command;
4081 }
4082
7fb1921b
MC		 4083 if (!sess) {
4084 cmd->result = DID_IMM_RETRY << 16;
4085 goto qc_fail_command;
4086 }
4087
4088 rval = iscsi_session_chkready(sess);
4089 if (rval) {
4090 cmd->result = rval;
4091 goto qc_fail_command;
4092 }
4093
f4f5df23
VC		 4094 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
4095 test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) ||
4096 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
4097 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) ||
4098 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) ||
4099 !test_bit(AF_ONLINE, &ha->flags) ||
b3a271a9 4100 !test_bit(AF_LINK_UP, &ha->flags) ||
026fbd3a 4101 test_bit(AF_LOOPBACK, &ha->flags) ||
7ab284c9
NJ		 4102 test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags) ||
4103 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags) ||
f4f5df23 4104 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))
477ffb9d
DS		 4105 goto qc_host_busy;
4106
8f0722ca 4107 srb = qla4xxx_get_new_srb(ha, ddb_entry, cmd);
afaf5a2d 4108 if (!srb)
8f0722ca 4109 goto qc_host_busy;
afaf5a2d
DS		 4110
4111 rval = qla4xxx_send_command_to_isp(ha, srb);
4112 if (rval != QLA_SUCCESS)
4113 goto qc_host_busy_free_sp;
4114
afaf5a2d
DS		 4115 return 0;
4116
4117qc_host_busy_free_sp:
4118 qla4xxx_srb_free_dma(ha, srb);
4119 mempool_free(srb, ha->srb_mempool);
4120
afaf5a2d
DS		 4121qc_host_busy:
4122 return SCSI_MLQUEUE_HOST_BUSY;
4123
4124qc_fail_command:
8f0722ca 4125 cmd->scsi_done(cmd);
afaf5a2d
DS		 4126
4127 return 0;
4128}
4129
4130/**
4131 * qla4xxx_mem_free - frees memory allocated to adapter
4132 * @ha: Pointer to host adapter structure.
4133 *
4134 * Frees memory previously allocated by qla4xxx_mem_alloc
4135 **/
4136static void qla4xxx_mem_free(struct scsi_qla_host *ha)
4137{
4138 if (ha->queues)
4139 dma_free_coherent(&ha->pdev->dev, ha->queues_len, ha->queues,
4140 ha->queues_dma);
4141
068237c8
TP		 4142 if (ha->fw_dump)
4143 vfree(ha->fw_dump);
4144
afaf5a2d
DS		 4145 ha->queues_len = 0;
4146 ha->queues = NULL;
4147 ha->queues_dma = 0;
4148 ha->request_ring = NULL;
4149 ha->request_dma = 0;
4150 ha->response_ring = NULL;
4151 ha->response_dma = 0;
4152 ha->shadow_regs = NULL;
4153 ha->shadow_regs_dma = 0;
068237c8
TP		 4154 ha->fw_dump = NULL;
4155 ha->fw_dump_size = 0;
afaf5a2d
DS		 4156
4157 /* Free srb pool. */
4158 if (ha->srb_mempool)
4159 mempool_destroy(ha->srb_mempool);
4160
4161 ha->srb_mempool = NULL;
4162
b3a271a9
MR		 4163 if (ha->chap_dma_pool)
4164 dma_pool_destroy(ha->chap_dma_pool);
4165
4549415a
LC		 4166 if (ha->chap_list)
4167 vfree(ha->chap_list);
4168 ha->chap_list = NULL;
4169
13483730
MC		 4170 if (ha->fw_ddb_dma_pool)
4171 dma_pool_destroy(ha->fw_ddb_dma_pool);
4172
afaf5a2d 4173 /* release io space registers */
f4f5df23
VC		 4174 if (is_qla8022(ha)) {
4175 if (ha->nx_pcibase)
4176 iounmap(
4177 (struct device_reg_82xx __iomem *)ha->nx_pcibase);
b37ca418 4178 } else if (is_qla8032(ha) || is_qla8042(ha)) {
6e7b4292
VC		 4179 if (ha->nx_pcibase)
4180 iounmap(
4181 (struct device_reg_83xx __iomem *)ha->nx_pcibase);
4182 } else if (ha->reg) {
afaf5a2d 4183 iounmap(ha->reg);
6e7b4292
VC		 4184 }
4185
4186 if (ha->reset_tmplt.buff)
4187 vfree(ha->reset_tmplt.buff);
4188
afaf5a2d
DS		 4189 pci_release_regions(ha->pdev);
4190}
4191
4192/**
4193 * qla4xxx_mem_alloc - allocates memory for use by adapter.
4194 * @ha: Pointer to host adapter structure
4195 *
4196 * Allocates DMA memory for request and response queues. Also allocates memory
4197 * for srbs.
4198 **/
4199static int qla4xxx_mem_alloc(struct scsi_qla_host *ha)
4200{
4201 unsigned long align;
4202
4203 /* Allocate contiguous block of DMA memory for queues. */
4204 ha->queues_len = ((REQUEST_QUEUE_DEPTH * QUEUE_SIZE) +
4205 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE) +
4206 sizeof(struct shadow_regs) +
4207 MEM_ALIGN_VALUE +
4208 (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
4209 ha->queues = dma_alloc_coherent(&ha->pdev->dev, ha->queues_len,
4210 &ha->queues_dma, GFP_KERNEL);
4211 if (ha->queues == NULL) {
c2660df3
VC		 4212 ql4_printk(KERN_WARNING, ha,
4213 "Memory Allocation failed - queues.\n");
afaf5a2d
DS		 4214
4215 goto mem_alloc_error_exit;
4216 }
4217 memset(ha->queues, 0, ha->queues_len);
4218
4219 /*
4220 * As per RISC alignment requirements -- the bus-address must be a
4221 * multiple of the request-ring size (in bytes).
4222 */
4223 align = 0;
4224 if ((unsigned long)ha->queues_dma & (MEM_ALIGN_VALUE - 1))
4225 align = MEM_ALIGN_VALUE - ((unsigned long)ha->queues_dma &
4226 (MEM_ALIGN_VALUE - 1));
4227
4228 /* Update request and response queue pointers. */
4229 ha->request_dma = ha->queues_dma + align;
4230 ha->request_ring = (struct queue_entry *) (ha->queues + align);
4231 ha->response_dma = ha->queues_dma + align +
4232 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE);
4233 ha->response_ring = (struct queue_entry *) (ha->queues + align +
4234 (REQUEST_QUEUE_DEPTH *
4235 QUEUE_SIZE));
4236 ha->shadow_regs_dma = ha->queues_dma + align +
4237 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE) +
4238 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE);
4239 ha->shadow_regs = (struct shadow_regs *) (ha->queues + align +
4240 (REQUEST_QUEUE_DEPTH *
4241 QUEUE_SIZE) +
4242 (RESPONSE_QUEUE_DEPTH *
4243 QUEUE_SIZE));
4244
4245 /* Allocate memory for srb pool. */
4246 ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab,
4247 mempool_free_slab, srb_cachep);
4248 if (ha->srb_mempool == NULL) {
c2660df3
VC		 4249 ql4_printk(KERN_WARNING, ha,
4250 "Memory Allocation failed - SRB Pool.\n");
afaf5a2d
DS		 4251
4252 goto mem_alloc_error_exit;
4253 }
4254
b3a271a9
MR		 4255 ha->chap_dma_pool = dma_pool_create("ql4_chap", &ha->pdev->dev,
4256 CHAP_DMA_BLOCK_SIZE, 8, 0);
4257
4258 if (ha->chap_dma_pool == NULL) {
4259 ql4_printk(KERN_WARNING, ha,
4260 "%s: chap_dma_pool allocation failed..\n", __func__);
4261 goto mem_alloc_error_exit;
4262 }
4263
13483730
MC		 4264 ha->fw_ddb_dma_pool = dma_pool_create("ql4_fw_ddb", &ha->pdev->dev,
4265 DDB_DMA_BLOCK_SIZE, 8, 0);
4266
4267 if (ha->fw_ddb_dma_pool == NULL) {
4268 ql4_printk(KERN_WARNING, ha,
4269 "%s: fw_ddb_dma_pool allocation failed..\n",
4270 __func__);
4271 goto mem_alloc_error_exit;
4272 }
4273
afaf5a2d
DS		 4274 return QLA_SUCCESS;
4275
4276mem_alloc_error_exit:
4277 qla4xxx_mem_free(ha);
4278 return QLA_ERROR;
4279}
4280
4f77083e
MH		 4281/**
4282 * qla4_8xxx_check_temp - Check the ISP82XX temperature.
4283 * @ha: adapter block pointer.
4284 *
4285 * Note: The caller should not hold the idc lock.
4286 **/
4287static int qla4_8xxx_check_temp(struct scsi_qla_host *ha)
4288{
4289 uint32_t temp, temp_state, temp_val;
4290 int status = QLA_SUCCESS;
4291
33693c7a 4292 temp = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_TEMP_STATE);
4f77083e
MH		 4293
4294 temp_state = qla82xx_get_temp_state(temp);
4295 temp_val = qla82xx_get_temp_val(temp);
4296
4297 if (temp_state == QLA82XX_TEMP_PANIC) {
4298 ql4_printk(KERN_WARNING, ha, "Device temperature %d degrees C"
4299 " exceeds maximum allowed. Hardware has been shut"
4300 " down.\n", temp_val);
4301 status = QLA_ERROR;
4302 } else if (temp_state == QLA82XX_TEMP_WARN) {
4303 if (ha->temperature == QLA82XX_TEMP_NORMAL)
4304 ql4_printk(KERN_WARNING, ha, "Device temperature %d"
4305 " degrees C exceeds operating range."
4306 " Immediate action needed.\n", temp_val);
4307 } else {
4308 if (ha->temperature == QLA82XX_TEMP_WARN)
4309 ql4_printk(KERN_INFO, ha, "Device temperature is"
4310 " now %d degrees C in normal range.\n",
4311 temp_val);
4312 }
4313 ha->temperature = temp_state;
4314 return status;
4315}
4316
f4f5df23
VC		 4317/**
4318 * qla4_8xxx_check_fw_alive - Check firmware health
4319 * @ha: Pointer to host adapter structure.
4320 *
4321 * Context: Interrupt
4322 **/
9ee91a38 4323static int qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha)
f4f5df23 4324{
9ee91a38
SS		 4325 uint32_t fw_heartbeat_counter;
4326 int status = QLA_SUCCESS;
f4f5df23 4327
33693c7a
VC		 4328 fw_heartbeat_counter = qla4_8xxx_rd_direct(ha,
4329 QLA8XXX_PEG_ALIVE_COUNTER);
2232be0d
LC		 4330 /* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */
4331 if (fw_heartbeat_counter == 0xffffffff) {
4332 DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Device in frozen "
4333 "state, QLA82XX_PEG_ALIVE_COUNTER is 0xffffffff\n",
4334 ha->host_no, __func__));
9ee91a38 4335 return status;
2232be0d 4336 }
f4f5df23
VC		 4337
4338 if (ha->fw_heartbeat_counter == fw_heartbeat_counter) {
4339 ha->seconds_since_last_heartbeat++;
4340 /* FW not alive after 2 seconds */
4341 if (ha->seconds_since_last_heartbeat == 2) {
4342 ha->seconds_since_last_heartbeat = 0;
6e7b4292 4343 qla4_8xxx_dump_peg_reg(ha);
9ee91a38 4344 status = QLA_ERROR;
f4f5df23 4345 }
99457d75
LC		 4346 } else
4347 ha->seconds_since_last_heartbeat = 0;
4348
f4f5df23 4349 ha->fw_heartbeat_counter = fw_heartbeat_counter;
9ee91a38 4350 return status;
f4f5df23
VC		 4351}
4352
6e7b4292
VC		 4353static void qla4_8xxx_process_fw_error(struct scsi_qla_host *ha)
4354{
4355 uint32_t halt_status;
4356 int halt_status_unrecoverable = 0;
4357
4358 halt_status = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_HALT_STATUS1);
4359
4360 if (is_qla8022(ha)) {
4361 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
4362 __func__);
4363 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
4364 CRB_NIU_XG_PAUSE_CTL_P0 |
4365 CRB_NIU_XG_PAUSE_CTL_P1);
4366
4367 if (QLA82XX_FWERROR_CODE(halt_status) == 0x67)
4368 ql4_printk(KERN_ERR, ha, "%s: Firmware aborted with error code 0x00006700. Device is being reset\n",
4369 __func__);
4370 if (halt_status & HALT_STATUS_UNRECOVERABLE)
4371 halt_status_unrecoverable = 1;
b37ca418 4372 } else if (is_qla8032(ha) || is_qla8042(ha)) {
6e7b4292
VC		 4373 if (halt_status & QLA83XX_HALT_STATUS_FW_RESET)
4374 ql4_printk(KERN_ERR, ha, "%s: Firmware error detected device is being reset\n",
4375 __func__);
4376 else if (halt_status & QLA83XX_HALT_STATUS_UNRECOVERABLE)
4377 halt_status_unrecoverable = 1;
4378 }
4379
4380 /*
4381 * Since we cannot change dev_state in interrupt context,
4382 * set appropriate DPC flag then wakeup DPC
4383 */
4384 if (halt_status_unrecoverable) {
4385 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags);
4386 } else {
4387 ql4_printk(KERN_INFO, ha, "%s: detect abort needed!\n",
4388 __func__);
4389 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4390 }
4391 qla4xxx_mailbox_premature_completion(ha);
4392 qla4xxx_wake_dpc(ha);
4393}
4394
f4f5df23
VC		 4395/**
4396 * qla4_8xxx_watchdog - Poll dev state
4397 * @ha: Pointer to host adapter structure.
4398 *
4399 * Context: Interrupt
4400 **/
4401void qla4_8xxx_watchdog(struct scsi_qla_host *ha)
4402{
6e7b4292 4403 uint32_t dev_state;
6cf94121 4404 uint32_t idc_ctrl;
f4f5df23 4405
a083e8bc
VC		 4406 if (is_qla8032(ha) &&
4407 (qla4_83xx_is_detached(ha) == QLA_SUCCESS))
4408 WARN_ONCE(1, "%s: iSCSI function %d marked invisible\n",
4409 __func__, ha->func_num);
4410
f4f5df23 4411 /* don't poll if reset is going on */
d56a1f7b
LC		 4412 if (!(test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) ||
4413 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
977f46a4 4414 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags))) {
33693c7a 4415 dev_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE);
4f77083e
MH		 4416
4417 if (qla4_8xxx_check_temp(ha)) {
6e7b4292
VC		 4418 if (is_qla8022(ha)) {
4419 ql4_printk(KERN_INFO, ha, "disabling pause transmit on port 0 & 1.\n");
4420 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
4421 CRB_NIU_XG_PAUSE_CTL_P0 |
4422 CRB_NIU_XG_PAUSE_CTL_P1);
4423 }
4f77083e
MH		 4424 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags);
4425 qla4xxx_wake_dpc(ha);
de8c72da 4426 } else if (dev_state == QLA8XXX_DEV_NEED_RESET &&
6e7b4292 4427 !test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
6cf94121
VC		 4428
4429 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED RESET!\n",
4430 __func__);
4431
b37ca418 4432 if (is_qla8032(ha) || is_qla8042(ha)) {
6cf94121
VC		 4433 idc_ctrl = qla4_83xx_rd_reg(ha,
4434 QLA83XX_IDC_DRV_CTRL);
4435 if (!(idc_ctrl & GRACEFUL_RESET_BIT1)) {
4436 ql4_printk(KERN_INFO, ha, "%s: Graceful reset bit is not set\n",
4437 __func__);
4438 qla4xxx_mailbox_premature_completion(
4439 ha);
4440 }
4441 }
4442
b37ca418 4443 if ((is_qla8032(ha) || is_qla8042(ha)) ||
6e7b4292 4444 (is_qla8022(ha) && !ql4xdontresethba)) {
3930b8c1
VC		 4445 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4446 qla4xxx_wake_dpc(ha);
3930b8c1 4447 }
de8c72da 4448 } else if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT &&
f4f5df23 4449 !test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) {
3930b8c1
VC		 4450 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED QUIES!\n",
4451 __func__);
f4f5df23
VC		 4452 set_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags);
4453 qla4xxx_wake_dpc(ha);
4454 } else {
4455 /* Check firmware health */
6e7b4292
VC		 4456 if (qla4_8xxx_check_fw_alive(ha))
4457 qla4_8xxx_process_fw_error(ha);
f4f5df23
VC		 4458 }
4459 }
4460}
4461
4a4bc2e9 4462static void qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)
13483730
MC		 4463{
4464 struct iscsi_session *sess;
4465 struct ddb_entry *ddb_entry;
4466 struct scsi_qla_host *ha;
4467
4468 sess = cls_sess->dd_data;
4469 ddb_entry = sess->dd_data;
4470 ha = ddb_entry->ha;
4471
4472 if (!(ddb_entry->ddb_type == FLASH_DDB))
4473 return;
4474
4475 if (adapter_up(ha) && !test_bit(DF_RELOGIN, &ddb_entry->flags) &&
4476 !iscsi_is_session_online(cls_sess)) {
4477 if (atomic_read(&ddb_entry->retry_relogin_timer) !=
4478 INVALID_ENTRY) {
4479 if (atomic_read(&ddb_entry->retry_relogin_timer) ==
4480 0) {
4481 atomic_set(&ddb_entry->retry_relogin_timer,
4482 INVALID_ENTRY);
4483 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
4484 set_bit(DF_RELOGIN, &ddb_entry->flags);
4485 DEBUG2(ql4_printk(KERN_INFO, ha,
4486 "%s: index [%d] login device\n",
4487 __func__, ddb_entry->fw_ddb_index));
4488 } else
4489 atomic_dec(&ddb_entry->retry_relogin_timer);
4490 }
4491 }
4492
4493 /* Wait for relogin to timeout */
4494 if (atomic_read(&ddb_entry->relogin_timer) &&
4495 (atomic_dec_and_test(&ddb_entry->relogin_timer) != 0)) {
4496 /*
4497 * If the relogin times out and the device is
4498 * still NOT ONLINE then try and relogin again.
4499 */
4500 if (!iscsi_is_session_online(cls_sess)) {
4501 /* Reset retry relogin timer */
4502 atomic_inc(&ddb_entry->relogin_retry_count);
4503 DEBUG2(ql4_printk(KERN_INFO, ha,
4504 "%s: index[%d] relogin timed out-retrying"
4505 " relogin (%d), retry (%d)\n", __func__,
4506 ddb_entry->fw_ddb_index,
4507 atomic_read(&ddb_entry->relogin_retry_count),
4508 ddb_entry->default_time2wait + 4));
4509 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
4510 atomic_set(&ddb_entry->retry_relogin_timer,
4511 ddb_entry->default_time2wait + 4);
4512 }
4513 }
4514}
4515
afaf5a2d
DS		 4516/**
4517 * qla4xxx_timer - checks every second for work to do.
4518 * @ha: Pointer to host adapter structure.
4519 **/
4520static void qla4xxx_timer(struct scsi_qla_host *ha)
4521{
afaf5a2d 4522 int start_dpc = 0;
2232be0d
LC		 4523 uint16_t w;
4524
13483730
MC		 4525 iscsi_host_for_each_session(ha->host, qla4xxx_check_relogin_flash_ddb);
4526
2232be0d
LC		 4527 /* If we are in the middle of AER/EEH processing
4528 * skip any processing and reschedule the timer
4529 */
4530 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
4531 mod_timer(&ha->timer, jiffies + HZ);
4532 return;
4533 }
4534
4535 /* Hardware read to trigger an EEH error during mailbox waits. */
4536 if (!pci_channel_offline(ha->pdev))
4537 pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
afaf5a2d 4538
6e7b4292 4539 if (is_qla80XX(ha))
f4f5df23 4540 qla4_8xxx_watchdog(ha);
f4f5df23 4541
ee996a69 4542 if (is_qla40XX(ha)) {
f4f5df23
VC		 4543 /* Check for heartbeat interval. */
4544 if (ha->firmware_options & FWOPT_HEARTBEAT_ENABLE &&
4545 ha->heartbeat_interval != 0) {
4546 ha->seconds_since_last_heartbeat++;
4547 if (ha->seconds_since_last_heartbeat >
4548 ha->heartbeat_interval + 2)
4549 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4550 }
afaf5a2d
DS		 4551 }
4552
ff884430
VC		 4553 /* Process any deferred work. */
4554 if (!list_empty(&ha->work_list))
4555 start_dpc++;
4556
afaf5a2d 4557 /* Wakeup the dpc routine for this adapter, if needed. */
1b46807e 4558 if (start_dpc ||
afaf5a2d
DS		 4559 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
4560 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags) ||
4561 test_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags) ||
f4f5df23 4562 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) ||
afaf5a2d
DS		 4563 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
4564 test_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags) ||
065aa1b4 4565 test_bit(DPC_LINK_CHANGED, &ha->dpc_flags) ||
f4f5df23
VC		 4566 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) ||
4567 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) ||
1b46807e 4568 test_bit(DPC_AEN, &ha->dpc_flags)) {
afaf5a2d
DS		 4569 DEBUG2(printk("scsi%ld: %s: scheduling dpc routine"
4570 " - dpc flags = 0x%lx\n",
4571 ha->host_no, __func__, ha->dpc_flags));
f4f5df23 4572 qla4xxx_wake_dpc(ha);
afaf5a2d
DS		 4573 }
4574
4575 /* Reschedule timer thread to call us back in one second */
4576 mod_timer(&ha->timer, jiffies + HZ);
4577
4578 DEBUG2(ha->seconds_since_last_intr++);
4579}
4580
4581/**
4582 * qla4xxx_cmd_wait - waits for all outstanding commands to complete
4583 * @ha: Pointer to host adapter structure.
4584 *
4585 * This routine stalls the driver until all outstanding commands are returned.
4586 * Caller must release the Hardware Lock prior to calling this routine.
4587 **/
4588static int qla4xxx_cmd_wait(struct scsi_qla_host *ha)
4589{
4590 uint32_t index = 0;
afaf5a2d
DS		 4591 unsigned long flags;
4592 struct scsi_cmnd *cmd;
61d9a2b6
TP		 4593 unsigned long wtime;
4594 uint32_t wtmo;
afaf5a2d 4595
61d9a2b6
TP		 4596 if (is_qla40XX(ha))
4597 wtmo = WAIT_CMD_TOV;
4598 else
4599 wtmo = ha->nx_reset_timeout / 2;
4600
4601 wtime = jiffies + (wtmo * HZ);
f4f5df23 4602
61d9a2b6
TP		 4603 DEBUG2(ql4_printk(KERN_INFO, ha,
4604 "Wait up to %u seconds for cmds to complete\n",
4605 wtmo));
f4f5df23
VC		 4606
4607 while (!time_after_eq(jiffies, wtime)) {
afaf5a2d
DS		 4608 spin_lock_irqsave(&ha->hardware_lock, flags);
4609 /* Find a command that hasn't completed. */
4610 for (index = 0; index < ha->host->can_queue; index++) {
4611 cmd = scsi_host_find_tag(ha->host, index);
a1e0063d
MC		 4612 /*
4613 * We cannot just check if the index is valid,
4614 * becase if we are run from the scsi eh, then
4615 * the scsi/block layer is going to prevent
4616 * the tag from being released.
4617 */
4618 if (cmd != NULL && CMD_SP(cmd))
afaf5a2d
DS		 4619 break;
4620 }
4621 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4622
4623 /* If No Commands are pending, wait is complete */
f4f5df23
VC		 4624 if (index == ha->host->can_queue)
4625 return QLA_SUCCESS;
afaf5a2d 4626
f4f5df23
VC		 4627 msleep(1000);
4628 }
4629 /* If we timed out on waiting for commands to come back
4630 * return ERROR. */
4631 return QLA_ERROR;
afaf5a2d
DS		 4632}
4633
f4f5df23 4634int qla4xxx_hw_reset(struct scsi_qla_host *ha)
afaf5a2d 4635{
afaf5a2d 4636 uint32_t ctrl_status;
477ffb9d
DS		 4637 unsigned long flags = 0;
4638
4639 DEBUG2(printk(KERN_ERR "scsi%ld: %s\n", ha->host_no, __func__));
afaf5a2d 4640
f4f5df23
VC		 4641 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS)
4642 return QLA_ERROR;
4643
afaf5a2d
DS		 4644 spin_lock_irqsave(&ha->hardware_lock, flags);
4645
4646 /*
4647 * If the SCSI Reset Interrupt bit is set, clear it.
4648 * Otherwise, the Soft Reset won't work.
4649 */
4650 ctrl_status = readw(&ha->reg->ctrl_status);
4651 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0)
4652 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status);
4653
4654 /* Issue Soft Reset */
4655 writel(set_rmask(CSR_SOFT_RESET), &ha->reg->ctrl_status);
4656 readl(&ha->reg->ctrl_status);
4657
4658 spin_unlock_irqrestore(&ha->hardware_lock, flags);
f4f5df23 4659 return QLA_SUCCESS;
477ffb9d
DS		 4660}
4661
4662/**
4663 * qla4xxx_soft_reset - performs soft reset.
4664 * @ha: Pointer to host adapter structure.
4665 **/
4666int qla4xxx_soft_reset(struct scsi_qla_host *ha)
4667{
4668 uint32_t max_wait_time;
4669 unsigned long flags = 0;
f931c534 4670 int status;
477ffb9d
DS		 4671 uint32_t ctrl_status;
4672
f931c534
VC		 4673 status = qla4xxx_hw_reset(ha);
4674 if (status != QLA_SUCCESS)
4675 return status;
afaf5a2d 4676
f931c534 4677 status = QLA_ERROR;
afaf5a2d
DS		 4678 /* Wait until the Network Reset Intr bit is cleared */
4679 max_wait_time = RESET_INTR_TOV;
4680 do {
4681 spin_lock_irqsave(&ha->hardware_lock, flags);
4682 ctrl_status = readw(&ha->reg->ctrl_status);
4683 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4684
4685 if ((ctrl_status & CSR_NET_RESET_INTR) == 0)
4686 break;
4687
4688 msleep(1000);
4689 } while ((--max_wait_time));
4690
4691 if ((ctrl_status & CSR_NET_RESET_INTR) != 0) {
4692 DEBUG2(printk(KERN_WARNING
4693 "scsi%ld: Network Reset Intr not cleared by "
4694 "Network function, clearing it now!\n",
4695 ha->host_no));
4696 spin_lock_irqsave(&ha->hardware_lock, flags);
4697 writel(set_rmask(CSR_NET_RESET_INTR), &ha->reg->ctrl_status);
4698 readl(&ha->reg->ctrl_status);
4699 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4700 }
4701
4702 /* Wait until the firmware tells us the Soft Reset is done */
4703 max_wait_time = SOFT_RESET_TOV;
4704 do {
4705 spin_lock_irqsave(&ha->hardware_lock, flags);
4706 ctrl_status = readw(&ha->reg->ctrl_status);
4707 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4708
4709 if ((ctrl_status & CSR_SOFT_RESET) == 0) {
4710 status = QLA_SUCCESS;
4711 break;
4712 }
4713
4714 msleep(1000);
4715 } while ((--max_wait_time));
4716
4717 /*
4718 * Also, make sure that the SCSI Reset Interrupt bit has been cleared
4719 * after the soft reset has taken place.
4720 */
4721 spin_lock_irqsave(&ha->hardware_lock, flags);
4722 ctrl_status = readw(&ha->reg->ctrl_status);
4723 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) {
4724 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status);
4725 readl(&ha->reg->ctrl_status);
4726 }
4727 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4728
4729 /* If soft reset fails then most probably the bios on other
4730 * function is also enabled.
4731 * Since the initialization is sequential the other fn
4732 * wont be able to acknowledge the soft reset.
4733 * Issue a force soft reset to workaround this scenario.
4734 */
4735 if (max_wait_time == 0) {
4736 /* Issue Force Soft Reset */
4737 spin_lock_irqsave(&ha->hardware_lock, flags);
4738 writel(set_rmask(CSR_FORCE_SOFT_RESET), &ha->reg->ctrl_status);
4739 readl(&ha->reg->ctrl_status);
4740 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4741 /* Wait until the firmware tells us the Soft Reset is done */
4742 max_wait_time = SOFT_RESET_TOV;
4743 do {
4744 spin_lock_irqsave(&ha->hardware_lock, flags);
4745 ctrl_status = readw(&ha->reg->ctrl_status);
4746 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4747
4748 if ((ctrl_status & CSR_FORCE_SOFT_RESET) == 0) {
4749 status = QLA_SUCCESS;
4750 break;
4751 }
4752
4753 msleep(1000);
4754 } while ((--max_wait_time));
4755 }
4756
4757 return status;
4758}
4759
afaf5a2d 4760/**
f4f5df23 4761 * qla4xxx_abort_active_cmds - returns all outstanding i/o requests to O.S.
afaf5a2d 4762 * @ha: Pointer to host adapter structure.
f4f5df23 4763 * @res: returned scsi status
afaf5a2d
DS		 4764 *
4765 * This routine is called just prior to a HARD RESET to return all
4766 * outstanding commands back to the Operating System.
4767 * Caller should make sure that the following locks are released
4768 * before this calling routine: Hardware lock, and io_request_lock.
4769 **/
f4f5df23 4770static void qla4xxx_abort_active_cmds(struct scsi_qla_host *ha, int res)
afaf5a2d
DS		 4771{
4772 struct srb *srb;
4773 int i;
4774 unsigned long flags;
4775
4776 spin_lock_irqsave(&ha->hardware_lock, flags);
4777 for (i = 0; i < ha->host->can_queue; i++) {
4778 srb = qla4xxx_del_from_active_array(ha, i);
4779 if (srb != NULL) {
f4f5df23 4780 srb->cmd->result = res;
09a0f719 4781 kref_put(&srb->srb_ref, qla4xxx_srb_compl);
afaf5a2d
DS		 4782 }
4783 }
4784 spin_unlock_irqrestore(&ha->hardware_lock, flags);
afaf5a2d
DS		 4785}
4786
f4f5df23
VC		 4787void qla4xxx_dead_adapter_cleanup(struct scsi_qla_host *ha)
4788{
4789 clear_bit(AF_ONLINE, &ha->flags);
4790
4791 /* Disable the board */
4792 ql4_printk(KERN_INFO, ha, "Disabling the board\n");
f4f5df23
VC		 4793
4794 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
4795 qla4xxx_mark_all_devices_missing(ha);
4796 clear_bit(AF_INIT_DONE, &ha->flags);
4797}
4798
b3a271a9
MR		 4799static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session)
4800{
4801 struct iscsi_session *sess;
4802 struct ddb_entry *ddb_entry;
4803
4804 sess = cls_session->dd_data;
4805 ddb_entry = sess->dd_data;
4806 ddb_entry->fw_ddb_device_state = DDB_DS_SESSION_FAILED;
13483730
MC		 4807
4808 if (ddb_entry->ddb_type == FLASH_DDB)
4809 iscsi_block_session(ddb_entry->sess);
4810 else
4811 iscsi_session_failure(cls_session->dd_data,
4812 ISCSI_ERR_CONN_FAILED);
b3a271a9
MR		 4813}
4814
afaf5a2d
DS		 4815/**
4816 * qla4xxx_recover_adapter - recovers adapter after a fatal error
4817 * @ha: Pointer to host adapter structure.
afaf5a2d 4818 **/
f4f5df23 4819static int qla4xxx_recover_adapter(struct scsi_qla_host *ha)
afaf5a2d 4820{
f4f5df23
VC		 4821 int status = QLA_ERROR;
4822 uint8_t reset_chip = 0;
8e0f3a66 4823 uint32_t dev_state;
9ee91a38 4824 unsigned long wait;
afaf5a2d
DS		 4825
4826 /* Stall incoming I/O until we are done */
f4f5df23 4827 scsi_block_requests(ha->host);
afaf5a2d 4828 clear_bit(AF_ONLINE, &ha->flags);
b3a271a9 4829 clear_bit(AF_LINK_UP, &ha->flags);
50a29aec 4830
f4f5df23 4831 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: adapter OFFLINE\n", __func__));
afaf5a2d 4832
f4f5df23 4833 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
afaf5a2d 4834
b37ca418 4835 if ((is_qla8032(ha) || is_qla8042(ha)) &&
546fef27
TP		 4836 !test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) {
4837 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
4838 __func__);
4839 /* disable pause frame for ISP83xx */
4840 qla4_83xx_disable_pause(ha);
4841 }
4842
b3a271a9
MR		 4843 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session);
4844
f4f5df23
VC		 4845 if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
4846 reset_chip = 1;
afaf5a2d 4847
f4f5df23
VC		 4848 /* For the DPC_RESET_HA_INTR case (ISP-4xxx specific)
4849 * do not reset adapter, jump to initialize_adapter */
4850 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
4851 status = QLA_SUCCESS;
4852 goto recover_ha_init_adapter;
4853 }
afaf5a2d 4854
6e7b4292 4855 /* For the ISP-8xxx adapter, issue a stop_firmware if invoked
f4f5df23 4856 * from eh_host_reset or ioctl module */
6e7b4292 4857 if (is_qla80XX(ha) && !reset_chip &&
f4f5df23
VC		 4858 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) {
4859
4860 DEBUG2(ql4_printk(KERN_INFO, ha,
4861 "scsi%ld: %s - Performing stop_firmware...\n",
4862 ha->host_no, __func__));
4863 status = ha->isp_ops->reset_firmware(ha);
4864 if (status == QLA_SUCCESS) {
2bd1e2be
NJ		 4865 if (!test_bit(AF_FW_RECOVERY, &ha->flags))
4866 qla4xxx_cmd_wait(ha);
5c19b92a 4867
f4f5df23
VC		 4868 ha->isp_ops->disable_intrs(ha);
4869 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
4870 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
4871 } else {
4872 /* If the stop_firmware fails then
4873 * reset the entire chip */
4874 reset_chip = 1;
4875 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
4876 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4877 }
4878 }
dca05c4c 4879
f4f5df23 4880 /* Issue full chip reset if recovering from a catastrophic error,
6e7b4292 4881 * or if stop_firmware fails for ISP-8xxx.
f4f5df23 4882 * This is the default case for ISP-4xxx */
ee996a69
VC		 4883 if (is_qla40XX(ha) || reset_chip) {
4884 if (is_qla40XX(ha))
9ee91a38
SS		 4885 goto chip_reset;
4886
6e7b4292 4887 /* Check if 8XXX firmware is alive or not
9ee91a38
SS		 4888 * We may have arrived here from NEED_RESET
4889 * detection only */
4890 if (test_bit(AF_FW_RECOVERY, &ha->flags))
4891 goto chip_reset;
4892
4893 wait = jiffies + (FW_ALIVE_WAIT_TOV * HZ);
4894 while (time_before(jiffies, wait)) {
4895 if (qla4_8xxx_check_fw_alive(ha)) {
4896 qla4xxx_mailbox_premature_completion(ha);
4897 break;
4898 }
4899
4900 set_current_state(TASK_UNINTERRUPTIBLE);
4901 schedule_timeout(HZ);
4902 }
da106212 4903chip_reset:
2bd1e2be
NJ		 4904 if (!test_bit(AF_FW_RECOVERY, &ha->flags))
4905 qla4xxx_cmd_wait(ha);
da106212 4906
f4f5df23 4907 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
f4f5df23
VC		 4908 DEBUG2(ql4_printk(KERN_INFO, ha,
4909 "scsi%ld: %s - Performing chip reset..\n",
4910 ha->host_no, __func__));
4911 status = ha->isp_ops->reset_chip(ha);
61d9a2b6 4912 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
f4f5df23 4913 }
afaf5a2d
DS		 4914
4915 /* Flush any pending ddb changed AENs */
4916 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
4917
f4f5df23
VC		 4918recover_ha_init_adapter:
4919 /* Upon successful firmware/chip reset, re-initialize the adapter */
afaf5a2d 4920 if (status == QLA_SUCCESS) {
f4f5df23
VC		 4921 /* For ISP-4xxx, force function 1 to always initialize
4922 * before function 3 to prevent both funcions from
4923 * stepping on top of the other */
ee996a69 4924 if (is_qla40XX(ha) && (ha->mac_index == 3))
f4f5df23
VC		 4925 ssleep(6);
4926
4927 /* NOTE: AF_ONLINE flag set upon successful completion of
37418cc6 4928 * qla4xxx_initialize_adapter */
13483730 4929 status = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
37418cc6
NJ		 4930 if (is_qla80XX(ha) && (status == QLA_ERROR)) {
4931 status = qla4_8xxx_check_init_adapter_retry(ha);
4932 if (status == QLA_ERROR) {
4933 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Don't retry recover adapter\n",
4934 ha->host_no, __func__);
4935 qla4xxx_dead_adapter_cleanup(ha);
4936 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
4937 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
4938 clear_bit(DPC_RESET_HA_FW_CONTEXT,
4939 &ha->dpc_flags);
4940 goto exit_recover;
4941 }
4942 }
afaf5a2d
DS		 4943 }
4944
f4f5df23
VC		 4945 /* Retry failed adapter initialization, if necessary
4946 * Do not retry initialize_adapter for RESET_HA_INTR (ISP-4xxx specific)
4947 * case to prevent ping-pong resets between functions */
4948 if (!test_bit(AF_ONLINE, &ha->flags) &&
4949 !test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
afaf5a2d 4950 /* Adapter initialization failed, see if we can retry
f4f5df23
VC		 4951 * resetting the ha.
4952 * Since we don't want to block the DPC for too long
4953 * with multiple resets in the same thread,
4954 * utilize DPC to retry */
6e7b4292 4955 if (is_qla80XX(ha)) {
33693c7a
VC		 4956 ha->isp_ops->idc_lock(ha);
4957 dev_state = qla4_8xxx_rd_direct(ha,
4958 QLA8XXX_CRB_DEV_STATE);
4959 ha->isp_ops->idc_unlock(ha);
de8c72da 4960 if (dev_state == QLA8XXX_DEV_FAILED) {
8e0f3a66
SR		 4961 ql4_printk(KERN_INFO, ha, "%s: don't retry "
4962 "recover adapter. H/W is in Failed "
4963 "state\n", __func__);
4964 qla4xxx_dead_adapter_cleanup(ha);
4965 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
4966 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
4967 clear_bit(DPC_RESET_HA_FW_CONTEXT,
4968 &ha->dpc_flags);
4969 status = QLA_ERROR;
4970
4971 goto exit_recover;
4972 }
4973 }
4974
afaf5a2d
DS		 4975 if (!test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags)) {
4976 ha->retry_reset_ha_cnt = MAX_RESET_HA_RETRIES;
4977 DEBUG2(printk("scsi%ld: recover adapter - retrying "
4978 "(%d) more times\n", ha->host_no,
4979 ha->retry_reset_ha_cnt));
4980 set_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
4981 status = QLA_ERROR;
4982 } else {
4983 if (ha->retry_reset_ha_cnt > 0) {
4984 /* Schedule another Reset HA--DPC will retry */
4985 ha->retry_reset_ha_cnt--;
4986 DEBUG2(printk("scsi%ld: recover adapter - "
4987 "retry remaining %d\n",
4988 ha->host_no,
4989 ha->retry_reset_ha_cnt));
4990 status = QLA_ERROR;
4991 }
4992
4993 if (ha->retry_reset_ha_cnt == 0) {
4994 /* Recover adapter retries have been exhausted.
4995 * Adapter DEAD */
4996 DEBUG2(printk("scsi%ld: recover adapter "
4997 "failed - board disabled\n",
4998 ha->host_no));
f4f5df23 4999 qla4xxx_dead_adapter_cleanup(ha);
afaf5a2d
DS		 5000 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
5001 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
f4f5df23 5002 clear_bit(DPC_RESET_HA_FW_CONTEXT,
afaf5a2d
DS		 5003 &ha->dpc_flags);
5004 status = QLA_ERROR;
5005 }
5006 }
5007 } else {
5008 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
f4f5df23 5009 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
afaf5a2d
DS		 5010 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
5011 }
5012
8e0f3a66 5013exit_recover:
afaf5a2d
DS		 5014 ha->adapter_error_count++;
5015
f4f5df23
VC		 5016 if (test_bit(AF_ONLINE, &ha->flags))
5017 ha->isp_ops->enable_intrs(ha);
5018
5019 scsi_unblock_requests(ha->host);
5020
5021 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
5022 DEBUG2(printk("scsi%ld: recover adapter: %s\n", ha->host_no,
25985edc 5023 status == QLA_ERROR ? "FAILED" : "SUCCEEDED"));
afaf5a2d 5024
afaf5a2d
DS		 5025 return status;
5026}
5027
b3a271a9 5028static void qla4xxx_relogin_devices(struct iscsi_cls_session *cls_session)
2d7924e6 5029{
b3a271a9
MR		 5030 struct iscsi_session *sess;
5031 struct ddb_entry *ddb_entry;
5032 struct scsi_qla_host *ha;
2d7924e6 5033
b3a271a9
MR		 5034 sess = cls_session->dd_data;
5035 ddb_entry = sess->dd_data;
5036 ha = ddb_entry->ha;
5037 if (!iscsi_is_session_online(cls_session)) {
5038 if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) {
5039 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5040 " unblock session\n", ha->host_no, __func__,
5041 ddb_entry->fw_ddb_index);
5042 iscsi_unblock_session(ddb_entry->sess);
5043 } else {
5044 /* Trigger relogin */
13483730 5045 if (ddb_entry->ddb_type == FLASH_DDB) {
99c6a33b
AC		 5046 if (!(test_bit(DF_RELOGIN, &ddb_entry->flags) ||
5047 test_bit(DF_DISABLE_RELOGIN,
5048 &ddb_entry->flags)))
13483730
MC		 5049 qla4xxx_arm_relogin_timer(ddb_entry);
5050 } else
5051 iscsi_session_failure(cls_session->dd_data,
5052 ISCSI_ERR_CONN_FAILED);
2d7924e6
VC		 5053 }
5054 }
5055}
5056
13483730
MC		 5057int qla4xxx_unblock_flash_ddb(struct iscsi_cls_session *cls_session)
5058{
5059 struct iscsi_session *sess;
5060 struct ddb_entry *ddb_entry;
5061 struct scsi_qla_host *ha;
5062
5063 sess = cls_session->dd_data;
5064 ddb_entry = sess->dd_data;
5065 ha = ddb_entry->ha;
5066 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5067 " unblock session\n", ha->host_no, __func__,
5068 ddb_entry->fw_ddb_index);
5069
5070 iscsi_unblock_session(ddb_entry->sess);
5071
5072 /* Start scan target */
5073 if (test_bit(AF_ONLINE, &ha->flags)) {
5074 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5075 " start scan\n", ha->host_no, __func__,
5076 ddb_entry->fw_ddb_index);
5077 scsi_queue_work(ha->host, &ddb_entry->sess->scan_work);
5078 }
5079 return QLA_SUCCESS;
5080}
5081
5082int qla4xxx_unblock_ddb(struct iscsi_cls_session *cls_session)
5083{
5084 struct iscsi_session *sess;
5085 struct ddb_entry *ddb_entry;
5086 struct scsi_qla_host *ha;
80c53e64 5087 int status = QLA_SUCCESS;
13483730
MC		 5088
5089 sess = cls_session->dd_data;
5090 ddb_entry = sess->dd_data;
5091 ha = ddb_entry->ha;
5092 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5093 " unblock user space session\n", ha->host_no, __func__,
5094 ddb_entry->fw_ddb_index);
13483730 5095
80c53e64
MR		 5096 if (!iscsi_is_session_online(cls_session)) {
5097 iscsi_conn_start(ddb_entry->conn);
5098 iscsi_conn_login_event(ddb_entry->conn,
5099 ISCSI_CONN_STATE_LOGGED_IN);
5100 } else {
5101 ql4_printk(KERN_INFO, ha,
5102 "scsi%ld: %s: ddb[%d] session [%d] already logged in\n",
5103 ha->host_no, __func__, ddb_entry->fw_ddb_index,
5104 cls_session->sid);
5105 status = QLA_ERROR;
5106 }
5107
5108 return status;
13483730
MC		 5109}
5110
b3a271a9
MR		 5111static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha)
5112{
5113 iscsi_host_for_each_session(ha->host, qla4xxx_relogin_devices);
5114}
5115
13483730
MC		 5116static void qla4xxx_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)
5117{
5118 uint16_t relogin_timer;
5119 struct iscsi_session *sess;
5120 struct ddb_entry *ddb_entry;
5121 struct scsi_qla_host *ha;
5122
5123 sess = cls_sess->dd_data;
5124 ddb_entry = sess->dd_data;
5125 ha = ddb_entry->ha;
5126
5127 relogin_timer = max(ddb_entry->default_relogin_timeout,
5128 (uint16_t)RELOGIN_TOV);
5129 atomic_set(&ddb_entry->relogin_timer, relogin_timer);
5130
5131 DEBUG2(ql4_printk(KERN_INFO, ha,
5132 "scsi%ld: Relogin index [%d]. TOV=%d\n", ha->host_no,
5133 ddb_entry->fw_ddb_index, relogin_timer));
5134
5135 qla4xxx_login_flash_ddb(cls_sess);
5136}
5137
5138static void qla4xxx_dpc_relogin(struct iscsi_cls_session *cls_sess)
5139{
5140 struct iscsi_session *sess;
5141 struct ddb_entry *ddb_entry;
5142 struct scsi_qla_host *ha;
5143
5144 sess = cls_sess->dd_data;
5145 ddb_entry = sess->dd_data;
5146 ha = ddb_entry->ha;
5147
5148 if (!(ddb_entry->ddb_type == FLASH_DDB))
5149 return;
5150
99c6a33b
AC		 5151 if (test_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags))
5152 return;
5153
13483730
MC		 5154 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags) &&
5155 !iscsi_is_session_online(cls_sess)) {
5156 DEBUG2(ql4_printk(KERN_INFO, ha,
5157 "relogin issued\n"));
5158 qla4xxx_relogin_flash_ddb(cls_sess);
5159 }
5160}
5161
f4f5df23
VC		 5162void qla4xxx_wake_dpc(struct scsi_qla_host *ha)
5163{
1b46807e 5164 if (ha->dpc_thread)
f4f5df23 5165 queue_work(ha->dpc_thread, &ha->dpc_work);
f4f5df23
VC		 5166}
5167
ff884430
VC		 5168static struct qla4_work_evt *
5169qla4xxx_alloc_work(struct scsi_qla_host *ha, uint32_t data_size,
5170 enum qla4_work_type type)
5171{
5172 struct qla4_work_evt *e;
5173 uint32_t size = sizeof(struct qla4_work_evt) + data_size;
5174
5175 e = kzalloc(size, GFP_ATOMIC);
5176 if (!e)
5177 return NULL;
5178
5179 INIT_LIST_HEAD(&e->list);
5180 e->type = type;
5181 return e;
5182}
5183
5184static void qla4xxx_post_work(struct scsi_qla_host *ha,
5185 struct qla4_work_evt *e)
5186{
5187 unsigned long flags;
5188
5189 spin_lock_irqsave(&ha->work_lock, flags);
5190 list_add_tail(&e->list, &ha->work_list);
5191 spin_unlock_irqrestore(&ha->work_lock, flags);
5192 qla4xxx_wake_dpc(ha);
5193}
5194
5195int qla4xxx_post_aen_work(struct scsi_qla_host *ha,
5196 enum iscsi_host_event_code aen_code,
5197 uint32_t data_size, uint8_t *data)
5198{
5199 struct qla4_work_evt *e;
5200
5201 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_AEN);
5202 if (!e)
5203 return QLA_ERROR;
5204
5205 e->u.aen.code = aen_code;
5206 e->u.aen.data_size = data_size;
5207 memcpy(e->u.aen.data, data, data_size);
5208
5209 qla4xxx_post_work(ha, e);
5210
5211 return QLA_SUCCESS;
5212}
5213
c0b9d3f7
VC		 5214int qla4xxx_post_ping_evt_work(struct scsi_qla_host *ha,
5215 uint32_t status, uint32_t pid,
5216 uint32_t data_size, uint8_t *data)
5217{
5218 struct qla4_work_evt *e;
5219
5220 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_PING_STATUS);
5221 if (!e)
5222 return QLA_ERROR;
5223
5224 e->u.ping.status = status;
5225 e->u.ping.pid = pid;
5226 e->u.ping.data_size = data_size;
5227 memcpy(e->u.ping.data, data, data_size);
5228
5229 qla4xxx_post_work(ha, e);
5230
5231 return QLA_SUCCESS;
5232}
5233
a7380a65 5234static void qla4xxx_do_work(struct scsi_qla_host *ha)
ff884430
VC		 5235{
5236 struct qla4_work_evt *e, *tmp;
5237 unsigned long flags;
5238 LIST_HEAD(work);
5239
5240 spin_lock_irqsave(&ha->work_lock, flags);
5241 list_splice_init(&ha->work_list, &work);
5242 spin_unlock_irqrestore(&ha->work_lock, flags);
5243
5244 list_for_each_entry_safe(e, tmp, &work, list) {
5245 list_del_init(&e->list);
5246
5247 switch (e->type) {
5248 case QLA4_EVENT_AEN:
5249 iscsi_post_host_event(ha->host_no,
5250 &qla4xxx_iscsi_transport,
5251 e->u.aen.code,
5252 e->u.aen.data_size,
5253 e->u.aen.data);
5254 break;
c0b9d3f7
VC		 5255 case QLA4_EVENT_PING_STATUS:
5256 iscsi_ping_comp_event(ha->host_no,
5257 &qla4xxx_iscsi_transport,
5258 e->u.ping.status,
5259 e->u.ping.pid,
5260 e->u.ping.data_size,
5261 e->u.ping.data);
5262 break;
ff884430
VC		 5263 default:
5264 ql4_printk(KERN_WARNING, ha, "event type: 0x%x not "
5265 "supported", e->type);
5266 }
5267 kfree(e);
5268 }
5269}
5270
afaf5a2d
DS		 5271/**
5272 * qla4xxx_do_dpc - dpc routine
5273 * @data: in our case pointer to adapter structure
5274 *
5275 * This routine is a task that is schedule by the interrupt handler
5276 * to perform the background processing for interrupts. We put it
5277 * on a task queue that is consumed whenever the scheduler runs; that's
5278 * so you can do anything (i.e. put the process to sleep etc). In fact,
5279 * the mid-level tries to sleep when it reaches the driver threshold
5280 * "host->can_queue". This can cause a panic if we were in our interrupt code.
5281 **/
c4028958 5282static void qla4xxx_do_dpc(struct work_struct *work)
afaf5a2d 5283{
c4028958
DH		 5284 struct scsi_qla_host *ha =
5285 container_of(work, struct scsi_qla_host, dpc_work);
477ffb9d 5286 int status = QLA_ERROR;
afaf5a2d 5287
a7e5688d
VC		 5288 DEBUG2(ql4_printk(KERN_INFO, ha,
5289 "scsi%ld: %s: DPC handler waking up. flags = 0x%08lx, dpc_flags = 0x%08lx\n",
5290 ha->host_no, __func__, ha->flags, ha->dpc_flags));
afaf5a2d
DS		 5291
5292 /* Initialization not yet finished. Don't do anything yet. */
5293 if (!test_bit(AF_INIT_DONE, &ha->flags))
1b46807e 5294 return;
afaf5a2d 5295
2232be0d
LC		 5296 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
5297 DEBUG2(printk(KERN_INFO "scsi%ld: %s: flags = %lx\n",
5298 ha->host_no, __func__, ha->flags));
1b46807e 5299 return;
2232be0d
LC		 5300 }
5301
ff884430
VC		 5302 /* post events to application */
5303 qla4xxx_do_work(ha);
5304
6e7b4292 5305 if (is_qla80XX(ha)) {
f4f5df23 5306 if (test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags)) {
b37ca418 5307 if (is_qla8032(ha) || is_qla8042(ha)) {
546fef27
TP		 5308 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
5309 __func__);
5310 /* disable pause frame for ISP83xx */
5311 qla4_83xx_disable_pause(ha);
5312 }
5313
33693c7a
VC		 5314 ha->isp_ops->idc_lock(ha);
5315 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
5316 QLA8XXX_DEV_FAILED);
5317 ha->isp_ops->idc_unlock(ha);
f4f5df23
VC		 5318 ql4_printk(KERN_INFO, ha, "HW State: FAILED\n");
5319 qla4_8xxx_device_state_handler(ha);
5320 }
320a61de 5321
7ab284c9
NJ		 5322 if (test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags)) {
5323 if (is_qla8042(ha)) {
5324 if (ha->idc_info.info2 &
5325 ENABLE_INTERNAL_LOOPBACK) {
5326 ql4_printk(KERN_INFO, ha, "%s: Disabling ACB\n",
5327 __func__);
5328 status = qla4_84xx_config_acb(ha,
5329 ACB_CONFIG_DISABLE);
5330 if (status != QLA_SUCCESS) {
5331 ql4_printk(KERN_INFO, ha, "%s: ACB config failed\n",
5332 __func__);
5333 }
5334 }
5335 }
320a61de 5336 qla4_83xx_post_idc_ack(ha);
7ab284c9
NJ		 5337 clear_bit(DPC_POST_IDC_ACK, &ha->dpc_flags);
5338 }
5339
5340 if (is_qla8042(ha) &&
5341 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags)) {
5342 ql4_printk(KERN_INFO, ha, "%s: Restoring ACB\n",
5343 __func__);
5344 if (qla4_84xx_config_acb(ha, ACB_CONFIG_SET) !=
5345 QLA_SUCCESS) {
5346 ql4_printk(KERN_INFO, ha, "%s: ACB config failed ",
5347 __func__);
5348 }
5349 clear_bit(DPC_RESTORE_ACB, &ha->dpc_flags);
5350 }
320a61de 5351
f4f5df23
VC		 5352 if (test_and_clear_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) {
5353 qla4_8xxx_need_qsnt_handler(ha);
5354 }
5355 }
5356
5357 if (!test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) &&
5358 (test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
afaf5a2d 5359 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
f4f5df23 5360 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))) {
6e7b4292 5361 if ((is_qla8022(ha) && ql4xdontresethba) ||
b37ca418
VC		 5362 ((is_qla8032(ha) || is_qla8042(ha)) &&
5363 qla4_83xx_idc_dontreset(ha))) {
f4f5df23
VC		 5364 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n",
5365 ha->host_no, __func__));
5366 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
5367 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags);
5368 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
5369 goto dpc_post_reset_ha;
5370 }
5371 if (test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) ||
5372 test_bit(DPC_RESET_HA, &ha->dpc_flags))
5373 qla4xxx_recover_adapter(ha);
afaf5a2d 5374
477ffb9d 5375 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
afaf5a2d 5376 uint8_t wait_time = RESET_INTR_TOV;
afaf5a2d 5377
afaf5a2d
DS		 5378 while ((readw(&ha->reg->ctrl_status) &
5379 (CSR_SOFT_RESET | CSR_FORCE_SOFT_RESET)) != 0) {
5380 if (--wait_time == 0)
5381 break;
afaf5a2d 5382 msleep(1000);
afaf5a2d 5383 }
afaf5a2d
DS		 5384 if (wait_time == 0)
5385 DEBUG2(printk("scsi%ld: %s: SR|FSR "
5386 "bit not cleared-- resetting\n",
5387 ha->host_no, __func__));
f4f5df23 5388 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
477ffb9d
DS		 5389 if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS) {
5390 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
f4f5df23 5391 status = qla4xxx_recover_adapter(ha);
477ffb9d
DS		 5392 }
5393 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags);
5394 if (status == QLA_SUCCESS)
f4f5df23 5395 ha->isp_ops->enable_intrs(ha);
afaf5a2d
DS		 5396 }
5397 }
5398
f4f5df23 5399dpc_post_reset_ha:
afaf5a2d
DS		 5400 /* ---- process AEN? --- */
5401 if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags))
5402 qla4xxx_process_aen(ha, PROCESS_ALL_AENS);
5403
5404 /* ---- Get DHCP IP Address? --- */
5405 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags))
5406 qla4xxx_get_dhcp_ip_address(ha);
5407
13483730
MC		 5408 /* ---- relogin device? --- */
5409 if (adapter_up(ha) &&
5410 test_and_clear_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags)) {
5411 iscsi_host_for_each_session(ha->host, qla4xxx_dpc_relogin);
5412 }
5413
065aa1b4 5414 /* ---- link change? --- */
026fbd3a
NJ		 5415 if (!test_bit(AF_LOOPBACK, &ha->flags) &&
5416 test_and_clear_bit(DPC_LINK_CHANGED, &ha->dpc_flags)) {
065aa1b4
VC		 5417 if (!test_bit(AF_LINK_UP, &ha->flags)) {
5418 /* ---- link down? --- */
2d7924e6 5419 qla4xxx_mark_all_devices_missing(ha);
065aa1b4
VC		 5420 } else {
5421 /* ---- link up? --- *
5422 * F/W will auto login to all devices ONLY ONCE after
5423 * link up during driver initialization and runtime
5424 * fatal error recovery. Therefore, the driver must
5425 * manually relogin to devices when recovering from
5426 * connection failures, logouts, expired KATO, etc. */
13483730
MC		 5427 if (test_and_clear_bit(AF_BUILD_DDB_LIST, &ha->flags)) {
5428 qla4xxx_build_ddb_list(ha, ha->is_reset);
5429 iscsi_host_for_each_session(ha->host,
5430 qla4xxx_login_flash_ddb);
5431 } else
5432 qla4xxx_relogin_all_devices(ha);
065aa1b4
VC		 5433 }
5434 }
afaf5a2d
DS		 5435}
5436
5437/**
5438 * qla4xxx_free_adapter - release the adapter
5439 * @ha: pointer to adapter structure
5440 **/
5441static void qla4xxx_free_adapter(struct scsi_qla_host *ha)
5442{
8a288960 5443 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
afaf5a2d 5444
5c19b92a
VC		 5445 /* Turn-off interrupts on the card. */
5446 ha->isp_ops->disable_intrs(ha);
afaf5a2d 5447
d9e62e51
VC		 5448 if (is_qla40XX(ha)) {
5449 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR),
5450 &ha->reg->ctrl_status);
5451 readl(&ha->reg->ctrl_status);
5452 } else if (is_qla8022(ha)) {
7664a1fd
VC		 5453 writel(0, &ha->qla4_82xx_reg->host_int);
5454 readl(&ha->qla4_82xx_reg->host_int);
b37ca418 5455 } else if (is_qla8032(ha) || is_qla8042(ha)) {
fbd8107c
VC		 5456 writel(0, &ha->qla4_83xx_reg->risc_intr);
5457 readl(&ha->qla4_83xx_reg->risc_intr);
d9e62e51
VC		 5458 }
5459
f4f5df23
VC		 5460 /* Remove timer thread, if present */
5461 if (ha->timer_active)
5462 qla4xxx_stop_timer(ha);
5463
afaf5a2d
DS		 5464 /* Kill the kernel thread for this host */
5465 if (ha->dpc_thread)
5466 destroy_workqueue(ha->dpc_thread);
5467
b3a271a9
MR		 5468 /* Kill the kernel thread for this host */
5469 if (ha->task_wq)
5470 destroy_workqueue(ha->task_wq);
5471
f4f5df23
VC		 5472 /* Put firmware in known state */
5473 ha->isp_ops->reset_firmware(ha);
afaf5a2d 5474
6e7b4292 5475 if (is_qla80XX(ha)) {
33693c7a 5476 ha->isp_ops->idc_lock(ha);
f4f5df23 5477 qla4_8xxx_clear_drv_active(ha);
33693c7a 5478 ha->isp_ops->idc_unlock(ha);
f4f5df23 5479 }
afaf5a2d 5480
afaf5a2d 5481 /* Detach interrupts */
5c19b92a 5482 qla4xxx_free_irqs(ha);
afaf5a2d 5483
bee4fe8e
DS		 5484 /* free extra memory */
5485 qla4xxx_mem_free(ha);
f4f5df23
VC		 5486}
5487
5488int qla4_8xxx_iospace_config(struct scsi_qla_host *ha)
5489{
5490 int status = 0;
f4f5df23
VC		 5491 unsigned long mem_base, mem_len, db_base, db_len;
5492 struct pci_dev *pdev = ha->pdev;
5493
5494 status = pci_request_regions(pdev, DRIVER_NAME);
5495 if (status) {
5496 printk(KERN_WARNING
5497 "scsi(%ld) Failed to reserve PIO regions (%s) "
5498 "status=%d\n", ha->host_no, pci_name(pdev), status);
5499 goto iospace_error_exit;
5500 }
5501
f4f5df23 5502 DEBUG2(printk(KERN_INFO "%s: revision-id=%d\n",
7d7311c4
SS		 5503 __func__, pdev->revision));
5504 ha->revision_id = pdev->revision;
bee4fe8e 5505
f4f5df23
VC		 5506 /* remap phys address */
5507 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
5508 mem_len = pci_resource_len(pdev, 0);
5509 DEBUG2(printk(KERN_INFO "%s: ioremap from %lx a size of %lx\n",
5510 __func__, mem_base, mem_len));
afaf5a2d 5511
f4f5df23
VC		 5512 /* mapping of pcibase pointer */
5513 ha->nx_pcibase = (unsigned long)ioremap(mem_base, mem_len);
5514 if (!ha->nx_pcibase) {
5515 printk(KERN_ERR
5516 "cannot remap MMIO (%s), aborting\n", pci_name(pdev));
5517 pci_release_regions(ha->pdev);
5518 goto iospace_error_exit;
5519 }
5520
5521 /* Mapping of IO base pointer, door bell read and write pointer */
5522
5523 /* mapping of IO base pointer */
6e7b4292
VC		 5524 if (is_qla8022(ha)) {
5525 ha->qla4_82xx_reg = (struct device_reg_82xx __iomem *)
5526 ((uint8_t *)ha->nx_pcibase + 0xbc000 +
5527 (ha->pdev->devfn << 11));
5528 ha->nx_db_wr_ptr = (ha->pdev->devfn == 4 ? QLA82XX_CAM_RAM_DB1 :
5529 QLA82XX_CAM_RAM_DB2);
b37ca418 5530 } else if (is_qla8032(ha) || is_qla8042(ha)) {
6e7b4292
VC		 5531 ha->qla4_83xx_reg = (struct device_reg_83xx __iomem *)
5532 ((uint8_t *)ha->nx_pcibase);
5533 }
f4f5df23
VC		 5534
5535 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
5536 db_len = pci_resource_len(pdev, 4);
5537
2657c800 5538 return 0;
f4f5df23
VC		 5539iospace_error_exit:
5540 return -ENOMEM;
afaf5a2d
DS		 5541}
5542
5543/***
5544 * qla4xxx_iospace_config - maps registers
5545 * @ha: pointer to adapter structure
5546 *
5547 * This routines maps HBA's registers from the pci address space
5548 * into the kernel virtual address space for memory mapped i/o.
5549 **/
f4f5df23 5550int qla4xxx_iospace_config(struct scsi_qla_host *ha)
afaf5a2d
DS		 5551{
5552 unsigned long pio, pio_len, pio_flags;
5553 unsigned long mmio, mmio_len, mmio_flags;
5554
5555 pio = pci_resource_start(ha->pdev, 0);
5556 pio_len = pci_resource_len(ha->pdev, 0);
5557 pio_flags = pci_resource_flags(ha->pdev, 0);
5558 if (pio_flags & IORESOURCE_IO) {
5559 if (pio_len < MIN_IOBASE_LEN) {
c2660df3 5560 ql4_printk(KERN_WARNING, ha,
afaf5a2d
DS		 5561 "Invalid PCI I/O region size\n");
5562 pio = 0;
5563 }
5564 } else {
c2660df3 5565 ql4_printk(KERN_WARNING, ha, "region #0 not a PIO resource\n");
afaf5a2d
DS		 5566 pio = 0;
5567 }
5568
5569 /* Use MMIO operations for all accesses. */
5570 mmio = pci_resource_start(ha->pdev, 1);
5571 mmio_len = pci_resource_len(ha->pdev, 1);
5572 mmio_flags = pci_resource_flags(ha->pdev, 1);
5573
5574 if (!(mmio_flags & IORESOURCE_MEM)) {
c2660df3
VC		 5575 ql4_printk(KERN_ERR, ha,
5576 "region #0 not an MMIO resource, aborting\n");
afaf5a2d
DS		 5577
5578 goto iospace_error_exit;
5579 }
c2660df3 5580
afaf5a2d 5581 if (mmio_len < MIN_IOBASE_LEN) {
c2660df3
VC		 5582 ql4_printk(KERN_ERR, ha,
5583 "Invalid PCI mem region size, aborting\n");
afaf5a2d
DS		 5584 goto iospace_error_exit;
5585 }
5586
5587 if (pci_request_regions(ha->pdev, DRIVER_NAME)) {
c2660df3
VC		 5588 ql4_printk(KERN_WARNING, ha,
5589 "Failed to reserve PIO/MMIO regions\n");
afaf5a2d
DS		 5590
5591 goto iospace_error_exit;
5592 }
5593
5594 ha->pio_address = pio;
5595 ha->pio_length = pio_len;
5596 ha->reg = ioremap(mmio, MIN_IOBASE_LEN);
5597 if (!ha->reg) {
c2660df3
VC		 5598 ql4_printk(KERN_ERR, ha,
5599 "cannot remap MMIO, aborting\n");
afaf5a2d
DS		 5600
5601 goto iospace_error_exit;
5602 }
5603
5604 return 0;
5605
5606iospace_error_exit:
5607 return -ENOMEM;
5608}
5609
f4f5df23
VC		 5610static struct isp_operations qla4xxx_isp_ops = {
5611 .iospace_config = qla4xxx_iospace_config,
5612 .pci_config = qla4xxx_pci_config,
5613 .disable_intrs = qla4xxx_disable_intrs,
5614 .enable_intrs = qla4xxx_enable_intrs,
5615 .start_firmware = qla4xxx_start_firmware,
5616 .intr_handler = qla4xxx_intr_handler,
5617 .interrupt_service_routine = qla4xxx_interrupt_service_routine,
5618 .reset_chip = qla4xxx_soft_reset,
5619 .reset_firmware = qla4xxx_hw_reset,
5620 .queue_iocb = qla4xxx_queue_iocb,
5621 .complete_iocb = qla4xxx_complete_iocb,
5622 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out,
5623 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in,
5624 .get_sys_info = qla4xxx_get_sys_info,
33693c7a
VC		 5625 .queue_mailbox_command = qla4xxx_queue_mbox_cmd,
5626 .process_mailbox_interrupt = qla4xxx_process_mbox_intr,
f4f5df23
VC		 5627};
5628
7664a1fd 5629static struct isp_operations qla4_82xx_isp_ops = {
f4f5df23
VC		 5630 .iospace_config = qla4_8xxx_iospace_config,
5631 .pci_config = qla4_8xxx_pci_config,
f8086f4f
VC		 5632 .disable_intrs = qla4_82xx_disable_intrs,
5633 .enable_intrs = qla4_82xx_enable_intrs,
f4f5df23 5634 .start_firmware = qla4_8xxx_load_risc,
33693c7a 5635 .restart_firmware = qla4_82xx_try_start_fw,
f8086f4f
VC		 5636 .intr_handler = qla4_82xx_intr_handler,
5637 .interrupt_service_routine = qla4_82xx_interrupt_service_routine,
33693c7a 5638 .need_reset = qla4_8xxx_need_reset,
f8086f4f 5639 .reset_chip = qla4_82xx_isp_reset,
f4f5df23 5640 .reset_firmware = qla4_8xxx_stop_firmware,
f8086f4f
VC		 5641 .queue_iocb = qla4_82xx_queue_iocb,
5642 .complete_iocb = qla4_82xx_complete_iocb,
5643 .rd_shdw_req_q_out = qla4_82xx_rd_shdw_req_q_out,
5644 .rd_shdw_rsp_q_in = qla4_82xx_rd_shdw_rsp_q_in,
f4f5df23 5645 .get_sys_info = qla4_8xxx_get_sys_info,
33693c7a
VC		 5646 .rd_reg_direct = qla4_82xx_rd_32,
5647 .wr_reg_direct = qla4_82xx_wr_32,
5648 .rd_reg_indirect = qla4_82xx_md_rd_32,
5649 .wr_reg_indirect = qla4_82xx_md_wr_32,
5650 .idc_lock = qla4_82xx_idc_lock,
5651 .idc_unlock = qla4_82xx_idc_unlock,
5652 .rom_lock_recovery = qla4_82xx_rom_lock_recovery,
5653 .queue_mailbox_command = qla4_82xx_queue_mbox_cmd,
5654 .process_mailbox_interrupt = qla4_82xx_process_mbox_intr,
f4f5df23
VC		 5655};
5656
6e7b4292
VC		 5657static struct isp_operations qla4_83xx_isp_ops = {
5658 .iospace_config = qla4_8xxx_iospace_config,
5659 .pci_config = qla4_8xxx_pci_config,
5660 .disable_intrs = qla4_83xx_disable_intrs,
5661 .enable_intrs = qla4_83xx_enable_intrs,
5662 .start_firmware = qla4_8xxx_load_risc,
5663 .restart_firmware = qla4_83xx_start_firmware,
5664 .intr_handler = qla4_83xx_intr_handler,
5665 .interrupt_service_routine = qla4_83xx_interrupt_service_routine,
5666 .need_reset = qla4_8xxx_need_reset,
5667 .reset_chip = qla4_83xx_isp_reset,
5668 .reset_firmware = qla4_8xxx_stop_firmware,
5669 .queue_iocb = qla4_83xx_queue_iocb,
5670 .complete_iocb = qla4_83xx_complete_iocb,
a24058f9
TP		 5671 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out,
5672 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in,
6e7b4292
VC		 5673 .get_sys_info = qla4_8xxx_get_sys_info,
5674 .rd_reg_direct = qla4_83xx_rd_reg,
5675 .wr_reg_direct = qla4_83xx_wr_reg,
5676 .rd_reg_indirect = qla4_83xx_rd_reg_indirect,
5677 .wr_reg_indirect = qla4_83xx_wr_reg_indirect,
5678 .idc_lock = qla4_83xx_drv_lock,
5679 .idc_unlock = qla4_83xx_drv_unlock,
5680 .rom_lock_recovery = qla4_83xx_rom_lock_recovery,
5681 .queue_mailbox_command = qla4_83xx_queue_mbox_cmd,
5682 .process_mailbox_interrupt = qla4_83xx_process_mbox_intr,
f4f5df23
VC		 5683};
5684
5685uint16_t qla4xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha)
5686{
5687 return (uint16_t)le32_to_cpu(ha->shadow_regs->req_q_out);
5688}
5689
f8086f4f 5690uint16_t qla4_82xx_rd_shdw_req_q_out(struct scsi_qla_host *ha)
f4f5df23 5691{
7664a1fd 5692 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->req_q_out));
f4f5df23
VC		 5693}
5694
5695uint16_t qla4xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha)
5696{
5697 return (uint16_t)le32_to_cpu(ha->shadow_regs->rsp_q_in);
5698}
5699
f8086f4f 5700uint16_t qla4_82xx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha)
f4f5df23 5701{
7664a1fd 5702 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->rsp_q_in));
f4f5df23
VC		 5703}
5704
2a991c21
MR		 5705static ssize_t qla4xxx_show_boot_eth_info(void *data, int type, char *buf)
5706{
5707 struct scsi_qla_host *ha = data;
5708 char *str = buf;
5709 int rc;
5710
5711 switch (type) {
5712 case ISCSI_BOOT_ETH_FLAGS:
5713 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT);
5714 break;
5715 case ISCSI_BOOT_ETH_INDEX:
5716 rc = sprintf(str, "0\n");
5717 break;
5718 case ISCSI_BOOT_ETH_MAC:
5719 rc = sysfs_format_mac(str, ha->my_mac,
5720 MAC_ADDR_LEN);
5721 break;
5722 default:
5723 rc = -ENOSYS;
5724 break;
5725 }
5726 return rc;
5727}
5728
587a1f16 5729static umode_t qla4xxx_eth_get_attr_visibility(void *data, int type)
2a991c21
MR		 5730{
5731 int rc;
5732
5733 switch (type) {
5734 case ISCSI_BOOT_ETH_FLAGS:
5735 case ISCSI_BOOT_ETH_MAC:
5736 case ISCSI_BOOT_ETH_INDEX:
5737 rc = S_IRUGO;
5738 break;
5739 default:
5740 rc = 0;
5741 break;
5742 }
5743 return rc;
5744}
5745
5746static ssize_t qla4xxx_show_boot_ini_info(void *data, int type, char *buf)
5747{
5748 struct scsi_qla_host *ha = data;
5749 char *str = buf;
5750 int rc;
5751
5752 switch (type) {
5753 case ISCSI_BOOT_INI_INITIATOR_NAME:
5754 rc = sprintf(str, "%s\n", ha->name_string);
5755 break;
5756 default:
5757 rc = -ENOSYS;
5758 break;
5759 }
5760 return rc;
5761}
5762
587a1f16 5763static umode_t qla4xxx_ini_get_attr_visibility(void *data, int type)
2a991c21
MR		 5764{
5765 int rc;
5766
5767 switch (type) {
5768 case ISCSI_BOOT_INI_INITIATOR_NAME:
5769 rc = S_IRUGO;
5770 break;
5771 default:
5772 rc = 0;
5773 break;
5774 }
5775 return rc;
5776}
5777
5778static ssize_t
5779qla4xxx_show_boot_tgt_info(struct ql4_boot_session_info *boot_sess, int type,
5780 char *buf)
5781{
5782 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0];
5783 char *str = buf;
5784 int rc;
5785
5786 switch (type) {
5787 case ISCSI_BOOT_TGT_NAME:
5788 rc = sprintf(buf, "%s\n", (char *)&boot_sess->target_name);
5789 break;
5790 case ISCSI_BOOT_TGT_IP_ADDR:
5791 if (boot_sess->conn_list[0].dest_ipaddr.ip_type == 0x1)
5792 rc = sprintf(buf, "%pI4\n",
5793 &boot_conn->dest_ipaddr.ip_address);
5794 else
5795 rc = sprintf(str, "%pI6\n",
5796 &boot_conn->dest_ipaddr.ip_address);
5797 break;
5798 case ISCSI_BOOT_TGT_PORT:
5799 rc = sprintf(str, "%d\n", boot_conn->dest_port);
5800 break;
5801 case ISCSI_BOOT_TGT_CHAP_NAME:
5802 rc = sprintf(str, "%.*s\n",
5803 boot_conn->chap.target_chap_name_length,
5804 (char *)&boot_conn->chap.target_chap_name);
5805 break;
5806 case ISCSI_BOOT_TGT_CHAP_SECRET:
5807 rc = sprintf(str, "%.*s\n",
5808 boot_conn->chap.target_secret_length,
5809 (char *)&boot_conn->chap.target_secret);
5810 break;
5811 case ISCSI_BOOT_TGT_REV_CHAP_NAME:
5812 rc = sprintf(str, "%.*s\n",
5813 boot_conn->chap.intr_chap_name_length,
5814 (char *)&boot_conn->chap.intr_chap_name);
5815 break;
5816 case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
5817 rc = sprintf(str, "%.*s\n",
5818 boot_conn->chap.intr_secret_length,
5819 (char *)&boot_conn->chap.intr_secret);
5820 break;
5821 case ISCSI_BOOT_TGT_FLAGS:
5822 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT);
5823 break;
5824 case ISCSI_BOOT_TGT_NIC_ASSOC:
5825 rc = sprintf(str, "0\n");
5826 break;
5827 default:
5828 rc = -ENOSYS;
5829 break;
5830 }
5831 return rc;
5832}
5833
5834static ssize_t qla4xxx_show_boot_tgt_pri_info(void *data, int type, char *buf)
5835{
5836 struct scsi_qla_host *ha = data;
5837 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_pri_sess);
5838
5839 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf);
5840}
5841
5842static ssize_t qla4xxx_show_boot_tgt_sec_info(void *data, int type, char *buf)
5843{
5844 struct scsi_qla_host *ha = data;
5845 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_sec_sess);
5846
5847 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf);
5848}
5849
587a1f16 5850static umode_t qla4xxx_tgt_get_attr_visibility(void *data, int type)
2a991c21
MR		 5851{
5852 int rc;
5853
5854 switch (type) {
5855 case ISCSI_BOOT_TGT_NAME:
5856 case ISCSI_BOOT_TGT_IP_ADDR:
5857 case ISCSI_BOOT_TGT_PORT:
5858 case ISCSI_BOOT_TGT_CHAP_NAME:
5859 case ISCSI_BOOT_TGT_CHAP_SECRET:
5860 case ISCSI_BOOT_TGT_REV_CHAP_NAME:
5861 case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
5862 case ISCSI_BOOT_TGT_NIC_ASSOC:
5863 case ISCSI_BOOT_TGT_FLAGS:
5864 rc = S_IRUGO;
5865 break;
5866 default:
5867 rc = 0;
5868 break;
5869 }
5870 return rc;
5871}
5872
5873static void qla4xxx_boot_release(void *data)
5874{
5875 struct scsi_qla_host *ha = data;
5876
5877 scsi_host_put(ha->host);
5878}
5879
5880static int get_fw_boot_info(struct scsi_qla_host *ha, uint16_t ddb_index[])
5881{
5882 dma_addr_t buf_dma;
5883 uint32_t addr, pri_addr, sec_addr;
5884 uint32_t offset;
5885 uint16_t func_num;
5886 uint8_t val;
5887 uint8_t *buf = NULL;
5888 size_t size = 13 * sizeof(uint8_t);
5889 int ret = QLA_SUCCESS;
5890
5891 func_num = PCI_FUNC(ha->pdev->devfn);
5892
0d5b36b8
MR		 5893 ql4_printk(KERN_INFO, ha, "%s: Get FW boot info for 0x%x func %d\n",
5894 __func__, ha->pdev->device, func_num);
2a991c21 5895
0d5b36b8 5896 if (is_qla40XX(ha)) {
2a991c21
MR		 5897 if (func_num == 1) {
5898 addr = NVRAM_PORT0_BOOT_MODE;
5899 pri_addr = NVRAM_PORT0_BOOT_PRI_TGT;
5900 sec_addr = NVRAM_PORT0_BOOT_SEC_TGT;
5901 } else if (func_num == 3) {
5902 addr = NVRAM_PORT1_BOOT_MODE;
5903 pri_addr = NVRAM_PORT1_BOOT_PRI_TGT;
5904 sec_addr = NVRAM_PORT1_BOOT_SEC_TGT;
5905 } else {
5906 ret = QLA_ERROR;
5907 goto exit_boot_info;
5908 }
5909
5910 /* Check Boot Mode */
5911 val = rd_nvram_byte(ha, addr);
5912 if (!(val & 0x07)) {
e8fb00e0
MR		 5913 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Adapter boot "
5914 "options : 0x%x\n", __func__, val));
2a991c21
MR		 5915 ret = QLA_ERROR;
5916 goto exit_boot_info;
5917 }
5918
5919 /* get primary valid target index */
5920 val = rd_nvram_byte(ha, pri_addr);
5921 if (val & BIT_7)
5922 ddb_index[0] = (val & 0x7f);
2a991c21
MR		 5923
5924 /* get secondary valid target index */
5925 val = rd_nvram_byte(ha, sec_addr);
5926 if (val & BIT_7)
5927 ddb_index[1] = (val & 0x7f);
2a991c21 5928
3e788fb1 5929 } else if (is_qla80XX(ha)) {
2a991c21
MR		 5930 buf = dma_alloc_coherent(&ha->pdev->dev, size,
5931 &buf_dma, GFP_KERNEL);
5932 if (!buf) {
5933 DEBUG2(ql4_printk(KERN_ERR, ha,
5934 "%s: Unable to allocate dma buffer\n",
5935 __func__));
5936 ret = QLA_ERROR;
5937 goto exit_boot_info;
5938 }
5939
5940 if (ha->port_num == 0)
5941 offset = BOOT_PARAM_OFFSET_PORT0;
5942 else if (ha->port_num == 1)
5943 offset = BOOT_PARAM_OFFSET_PORT1;
5944 else {
5945 ret = QLA_ERROR;
5946 goto exit_boot_info_free;
5947 }
5948 addr = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_iscsi_param * 4) +
5949 offset;
5950 if (qla4xxx_get_flash(ha, buf_dma, addr,
5951 13 * sizeof(uint8_t)) != QLA_SUCCESS) {
5952 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: Get Flash"
0bd7f842 5953 " failed\n", ha->host_no, __func__));
2a991c21
MR		 5954 ret = QLA_ERROR;
5955 goto exit_boot_info_free;
5956 }
5957 /* Check Boot Mode */
5958 if (!(buf[1] & 0x07)) {
e8fb00e0
MR		 5959 DEBUG2(ql4_printk(KERN_INFO, ha, "Firmware boot options"
5960 " : 0x%x\n", buf[1]));
2a991c21
MR		 5961 ret = QLA_ERROR;
5962 goto exit_boot_info_free;
5963 }
5964
5965 /* get primary valid target index */
5966 if (buf[2] & BIT_7)
5967 ddb_index[0] = buf[2] & 0x7f;
2a991c21
MR		 5968
5969 /* get secondary valid target index */
5970 if (buf[11] & BIT_7)
5971 ddb_index[1] = buf[11] & 0x7f;
2a991c21
MR		 5972 } else {
5973 ret = QLA_ERROR;
5974 goto exit_boot_info;
5975 }
5976
5977 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary target ID %d, Secondary"
5978 " target ID %d\n", __func__, ddb_index[0],
5979 ddb_index[1]));
5980
5981exit_boot_info_free:
5982 dma_free_coherent(&ha->pdev->dev, size, buf, buf_dma);
5983exit_boot_info:
20e835b4
LC		 5984 ha->pri_ddb_idx = ddb_index[0];
5985 ha->sec_ddb_idx = ddb_index[1];
2a991c21
MR		 5986 return ret;
5987}
5988
28deb45c
LC		 5989/**
5990 * qla4xxx_get_bidi_chap - Get a BIDI CHAP user and password
5991 * @ha: pointer to adapter structure
5992 * @username: CHAP username to be returned
5993 * @password: CHAP password to be returned
5994 *
5995 * If a boot entry has BIDI CHAP enabled then we need to set the BIDI CHAP
5996 * user and password in the sysfs entry in /sys/firmware/iscsi_boot#/.
5997 * So from the CHAP cache find the first BIDI CHAP entry and set it
5998 * to the boot record in sysfs.
5999 **/
6000static int qla4xxx_get_bidi_chap(struct scsi_qla_host *ha, char *username,
6001 char *password)
6002{
6003 int i, ret = -EINVAL;
6004 int max_chap_entries = 0;
6005 struct ql4_chap_table *chap_table;
6006
d11b0ca3 6007 if (is_qla80XX(ha))
28deb45c
LC		 6008 max_chap_entries = (ha->hw.flt_chap_size / 2) /
6009 sizeof(struct ql4_chap_table);
6010 else
6011 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
6012
6013 if (!ha->chap_list) {
6014 ql4_printk(KERN_ERR, ha, "Do not have CHAP table cache\n");
6015 return ret;
6016 }
6017
6018 mutex_lock(&ha->chap_sem);
6019 for (i = 0; i < max_chap_entries; i++) {
6020 chap_table = (struct ql4_chap_table *)ha->chap_list + i;
6021 if (chap_table->cookie !=
6022 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) {
6023 continue;
6024 }
6025
6026 if (chap_table->flags & BIT_7) /* local */
6027 continue;
6028
6029 if (!(chap_table->flags & BIT_6)) /* Not BIDI */
6030 continue;
6031
6032 strncpy(password, chap_table->secret, QL4_CHAP_MAX_SECRET_LEN);
6033 strncpy(username, chap_table->name, QL4_CHAP_MAX_NAME_LEN);
6034 ret = 0;
6035 break;
6036 }
6037 mutex_unlock(&ha->chap_sem);
6038
6039 return ret;
6040}
6041
6042
2a991c21
MR		 6043static int qla4xxx_get_boot_target(struct scsi_qla_host *ha,
6044 struct ql4_boot_session_info *boot_sess,
6045 uint16_t ddb_index)
6046{
6047 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0];
6048 struct dev_db_entry *fw_ddb_entry;
6049 dma_addr_t fw_ddb_entry_dma;
6050 uint16_t idx;
6051 uint16_t options;
6052 int ret = QLA_SUCCESS;
6053
6054 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
6055 &fw_ddb_entry_dma, GFP_KERNEL);
6056 if (!fw_ddb_entry) {
6057 DEBUG2(ql4_printk(KERN_ERR, ha,
6058 "%s: Unable to allocate dma buffer.\n",
6059 __func__));
6060 ret = QLA_ERROR;
6061 return ret;
6062 }
6063
6064 if (qla4xxx_bootdb_by_index(ha, fw_ddb_entry,
6065 fw_ddb_entry_dma, ddb_index)) {
e8fb00e0
MR		 6066 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: No Flash DDB found at "
6067 "index [%d]\n", __func__, ddb_index));
2a991c21
MR		 6068 ret = QLA_ERROR;
6069 goto exit_boot_target;
6070 }
6071
6072 /* Update target name and IP from DDB */
6073 memcpy(boot_sess->target_name, fw_ddb_entry->iscsi_name,
6074 min(sizeof(boot_sess->target_name),
6075 sizeof(fw_ddb_entry->iscsi_name)));
6076
6077 options = le16_to_cpu(fw_ddb_entry->options);
6078 if (options & DDB_OPT_IPV6_DEVICE) {
6079 memcpy(&boot_conn->dest_ipaddr.ip_address,
6080 &fw_ddb_entry->ip_addr[0], IPv6_ADDR_LEN);
6081 } else {
6082 boot_conn->dest_ipaddr.ip_type = 0x1;
6083 memcpy(&boot_conn->dest_ipaddr.ip_address,
6084 &fw_ddb_entry->ip_addr[0], IP_ADDR_LEN);
6085 }
6086
6087 boot_conn->dest_port = le16_to_cpu(fw_ddb_entry->port);
6088
6089 /* update chap information */
6090 idx = __le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
6091
6092 if (BIT_7 & le16_to_cpu(fw_ddb_entry->iscsi_options)) {
6093
6094 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting chap\n"));
6095
6096 ret = qla4xxx_get_chap(ha, (char *)&boot_conn->chap.
6097 target_chap_name,
6098 (char *)&boot_conn->chap.target_secret,
6099 idx);
6100 if (ret) {
6101 ql4_printk(KERN_ERR, ha, "Failed to set chap\n");
6102 ret = QLA_ERROR;
6103 goto exit_boot_target;
6104 }
6105
6106 boot_conn->chap.target_chap_name_length = QL4_CHAP_MAX_NAME_LEN;
6107 boot_conn->chap.target_secret_length = QL4_CHAP_MAX_SECRET_LEN;
6108 }
6109
6110 if (BIT_4 & le16_to_cpu(fw_ddb_entry->iscsi_options)) {
6111
6112 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting BIDI chap\n"));
6113
28deb45c
LC		 6114 ret = qla4xxx_get_bidi_chap(ha,
6115 (char *)&boot_conn->chap.intr_chap_name,
6116 (char *)&boot_conn->chap.intr_secret);
6117
2a991c21
MR		 6118 if (ret) {
6119 ql4_printk(KERN_ERR, ha, "Failed to set BIDI chap\n");
6120 ret = QLA_ERROR;
6121 goto exit_boot_target;
6122 }
6123
6124 boot_conn->chap.intr_chap_name_length = QL4_CHAP_MAX_NAME_LEN;
6125 boot_conn->chap.intr_secret_length = QL4_CHAP_MAX_SECRET_LEN;
6126 }
6127
6128exit_boot_target:
6129 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
6130 fw_ddb_entry, fw_ddb_entry_dma);
6131 return ret;
6132}
6133
6134static int qla4xxx_get_boot_info(struct scsi_qla_host *ha)
6135{
6136 uint16_t ddb_index[2];
8de5b958
LC		 6137 int ret = QLA_ERROR;
6138 int rval;
2a991c21
MR		 6139
6140 memset(ddb_index, 0, sizeof(ddb_index));
8de5b958
LC		 6141 ddb_index[0] = 0xffff;
6142 ddb_index[1] = 0xffff;
2a991c21
MR		 6143 ret = get_fw_boot_info(ha, ddb_index);
6144 if (ret != QLA_SUCCESS) {
e8fb00e0
MR		 6145 DEBUG2(ql4_printk(KERN_INFO, ha,
6146 "%s: No boot target configured.\n", __func__));
2a991c21
MR		 6147 return ret;
6148 }
6149
13483730
MC		 6150 if (ql4xdisablesysfsboot)
6151 return QLA_SUCCESS;
6152
8de5b958
LC		 6153 if (ddb_index[0] == 0xffff)
6154 goto sec_target;
6155
6156 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_pri_sess),
2a991c21 6157 ddb_index[0]);
8de5b958 6158 if (rval != QLA_SUCCESS) {
e8fb00e0
MR		 6159 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary boot target not "
6160 "configured\n", __func__));
8de5b958
LC		 6161 } else
6162 ret = QLA_SUCCESS;
2a991c21 6163
8de5b958
LC		 6164sec_target:
6165 if (ddb_index[1] == 0xffff)
6166 goto exit_get_boot_info;
6167
6168 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_sec_sess),
2a991c21 6169 ddb_index[1]);
8de5b958 6170 if (rval != QLA_SUCCESS) {
e8fb00e0
MR		 6171 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Secondary boot target not"
6172 " configured\n", __func__));
8de5b958
LC		 6173 } else
6174 ret = QLA_SUCCESS;
6175
6176exit_get_boot_info:
2a991c21
MR		 6177 return ret;
6178}
6179
6180static int qla4xxx_setup_boot_info(struct scsi_qla_host *ha)
6181{
6182 struct iscsi_boot_kobj *boot_kobj;
6183
6184 if (qla4xxx_get_boot_info(ha) != QLA_SUCCESS)
13483730
MC		 6185 return QLA_ERROR;
6186
6187 if (ql4xdisablesysfsboot) {
6188 ql4_printk(KERN_INFO, ha,
0bd7f842 6189 "%s: syfsboot disabled - driver will trigger login "
13483730
MC		 6190 "and publish session for discovery .\n", __func__);
6191 return QLA_SUCCESS;
6192 }
6193
2a991c21
MR		 6194
6195 ha->boot_kset = iscsi_boot_create_host_kset(ha->host->host_no);
6196 if (!ha->boot_kset)
6197 goto kset_free;
6198
6199 if (!scsi_host_get(ha->host))
6200 goto kset_free;
6201 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 0, ha,
6202 qla4xxx_show_boot_tgt_pri_info,
6203 qla4xxx_tgt_get_attr_visibility,
6204 qla4xxx_boot_release);
6205 if (!boot_kobj)
6206 goto put_host;
6207
6208 if (!scsi_host_get(ha->host))
6209 goto kset_free;
6210 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 1, ha,
6211 qla4xxx_show_boot_tgt_sec_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_initiator(ha->boot_kset, 0, ha,
6220 qla4xxx_show_boot_ini_info,
6221 qla4xxx_ini_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_ethernet(ha->boot_kset, 0, ha,
6229 qla4xxx_show_boot_eth_info,
6230 qla4xxx_eth_get_attr_visibility,
6231 qla4xxx_boot_release);
6232 if (!boot_kobj)
6233 goto put_host;
6234
13483730 6235 return QLA_SUCCESS;
2a991c21
MR		 6236
6237put_host:
6238 scsi_host_put(ha->host);
6239kset_free:
6240 iscsi_boot_destroy_kset(ha->boot_kset);
6241 return -ENOMEM;
6242}
6243
4549415a 6244
13483730
MC		 6245static void qla4xxx_get_param_ddb(struct ddb_entry *ddb_entry,
6246 struct ql4_tuple_ddb *tddb)
6247{
6248 struct scsi_qla_host *ha;
6249 struct iscsi_cls_session *cls_sess;
6250 struct iscsi_cls_conn *cls_conn;
6251 struct iscsi_session *sess;
6252 struct iscsi_conn *conn;
6253
6254 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
6255 ha = ddb_entry->ha;
6256 cls_sess = ddb_entry->sess;
6257 sess = cls_sess->dd_data;
6258 cls_conn = ddb_entry->conn;
6259 conn = cls_conn->dd_data;
6260
6261 tddb->tpgt = sess->tpgt;
6262 tddb->port = conn->persistent_port;
6263 strncpy(tddb->iscsi_name, sess->targetname, ISCSI_NAME_SIZE);
6264 strncpy(tddb->ip_addr, conn->persistent_address, DDB_IPADDR_LEN);
6265}
6266
6267static void qla4xxx_convert_param_ddb(struct dev_db_entry *fw_ddb_entry,
1cb78d73
VC		 6268 struct ql4_tuple_ddb *tddb,
6269 uint8_t *flash_isid)
13483730
MC		 6270{
6271 uint16_t options = 0;
6272
6273 tddb->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
6274 memcpy(&tddb->iscsi_name[0], &fw_ddb_entry->iscsi_name[0],
6275 min(sizeof(tddb->iscsi_name), sizeof(fw_ddb_entry->iscsi_name)));
6276
6277 options = le16_to_cpu(fw_ddb_entry->options);
6278 if (options & DDB_OPT_IPV6_DEVICE)
6279 sprintf(tddb->ip_addr, "%pI6", fw_ddb_entry->ip_addr);
6280 else
6281 sprintf(tddb->ip_addr, "%pI4", fw_ddb_entry->ip_addr);
6282
6283 tddb->port = le16_to_cpu(fw_ddb_entry->port);
1cb78d73
VC		 6284
6285 if (flash_isid == NULL)
6286 memcpy(&tddb->isid[0], &fw_ddb_entry->isid[0],
6287 sizeof(tddb->isid));
6288 else
6289 memcpy(&tddb->isid[0], &flash_isid[0], sizeof(tddb->isid));
13483730
MC		 6290}
6291
6292static int qla4xxx_compare_tuple_ddb(struct scsi_qla_host *ha,
6293 struct ql4_tuple_ddb *old_tddb,
173269ef
MR		 6294 struct ql4_tuple_ddb *new_tddb,
6295 uint8_t is_isid_compare)
13483730
MC		 6296{
6297 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name))
6298 return QLA_ERROR;
6299
6300 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr))
6301 return QLA_ERROR;
6302
6303 if (old_tddb->port != new_tddb->port)
6304 return QLA_ERROR;
6305
173269ef 6306 /* For multi sessions, driver generates the ISID, so do not compare
59e13d48 6307 * ISID in reset path since it would be a comparison between the
173269ef
MR		 6308 * driver generated ISID and firmware generated ISID. This could
6309 * lead to adding duplicated DDBs in the list as driver generated
6310 * ISID would not match firmware generated ISID.
6311 */
6312 if (is_isid_compare) {
6313 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: old ISID [%02x%02x%02x"
6314 "%02x%02x%02x] New ISID [%02x%02x%02x%02x%02x%02x]\n",
6315 __func__, old_tddb->isid[5], old_tddb->isid[4],
6316 old_tddb->isid[3], old_tddb->isid[2], old_tddb->isid[1],
6317 old_tddb->isid[0], new_tddb->isid[5], new_tddb->isid[4],
6318 new_tddb->isid[3], new_tddb->isid[2], new_tddb->isid[1],
6319 new_tddb->isid[0]));
6320
6321 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0],
6322 sizeof(old_tddb->isid)))
6323 return QLA_ERROR;
6324 }
6325
13483730
MC		 6326 DEBUG2(ql4_printk(KERN_INFO, ha,
6327 "Match Found, fw[%d,%d,%s,%s], [%d,%d,%s,%s]",
6328 old_tddb->port, old_tddb->tpgt, old_tddb->ip_addr,
6329 old_tddb->iscsi_name, new_tddb->port, new_tddb->tpgt,
6330 new_tddb->ip_addr, new_tddb->iscsi_name));
6331
6332 return QLA_SUCCESS;
6333}
6334
6335static int qla4xxx_is_session_exists(struct scsi_qla_host *ha,
ad8bd45e
MR		 6336 struct dev_db_entry *fw_ddb_entry,
6337 uint32_t *index)
13483730
MC		 6338{
6339 struct ddb_entry *ddb_entry;
6340 struct ql4_tuple_ddb *fw_tddb = NULL;
6341 struct ql4_tuple_ddb *tmp_tddb = NULL;
6342 int idx;
6343 int ret = QLA_ERROR;
6344
6345 fw_tddb = vzalloc(sizeof(*fw_tddb));
6346 if (!fw_tddb) {
6347 DEBUG2(ql4_printk(KERN_WARNING, ha,
6348 "Memory Allocation failed.\n"));
6349 ret = QLA_SUCCESS;
6350 goto exit_check;
6351 }
6352
6353 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
6354 if (!tmp_tddb) {
6355 DEBUG2(ql4_printk(KERN_WARNING, ha,
6356 "Memory Allocation failed.\n"));
6357 ret = QLA_SUCCESS;
6358 goto exit_check;
6359 }
6360
1cb78d73 6361 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL);
13483730
MC		 6362
6363 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
6364 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
6365 if (ddb_entry == NULL)
6366 continue;
6367
6368 qla4xxx_get_param_ddb(ddb_entry, tmp_tddb);
173269ef 6369 if (!qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, false)) {
13483730 6370 ret = QLA_SUCCESS; /* found */
ad8bd45e
MR		 6371 if (index != NULL)
6372 *index = idx;
13483730
MC		 6373 goto exit_check;
6374 }
6375 }
6376
6377exit_check:
6378 if (fw_tddb)
6379 vfree(fw_tddb);
6380 if (tmp_tddb)
6381 vfree(tmp_tddb);
6382 return ret;
6383}
6384
1cb78d73
VC		 6385/**
6386 * qla4xxx_check_existing_isid - check if target with same isid exist
6387 * in target list
6388 * @list_nt: list of target
6389 * @isid: isid to check
6390 *
6391 * This routine return QLA_SUCCESS if target with same isid exist
6392 **/
6393static int qla4xxx_check_existing_isid(struct list_head *list_nt, uint8_t *isid)
6394{
6395 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp;
6396 struct dev_db_entry *fw_ddb_entry;
6397
6398 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
6399 fw_ddb_entry = &nt_ddb_idx->fw_ddb;
6400
6401 if (memcmp(&fw_ddb_entry->isid[0], &isid[0],
6402 sizeof(nt_ddb_idx->fw_ddb.isid)) == 0) {
6403 return QLA_SUCCESS;
6404 }
6405 }
6406 return QLA_ERROR;
6407}
6408
6409/**
6410 * qla4xxx_update_isid - compare ddbs and updated isid
6411 * @ha: Pointer to host adapter structure.
6412 * @list_nt: list of nt target
6413 * @fw_ddb_entry: firmware ddb entry
6414 *
6415 * This routine update isid if ddbs have same iqn, same isid and
6416 * different IP addr.
6417 * Return QLA_SUCCESS if isid is updated.
6418 **/
6419static int qla4xxx_update_isid(struct scsi_qla_host *ha,
6420 struct list_head *list_nt,
6421 struct dev_db_entry *fw_ddb_entry)
6422{
6423 uint8_t base_value, i;
6424
6425 base_value = fw_ddb_entry->isid[1] & 0x1f;
6426 for (i = 0; i < 8; i++) {
6427 fw_ddb_entry->isid[1] = (base_value | (i << 5));
6428 if (qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid))
6429 break;
6430 }
6431
6432 if (!qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid))
6433 return QLA_ERROR;
6434
6435 return QLA_SUCCESS;
6436}
6437
6438/**
6439 * qla4xxx_should_update_isid - check if isid need to update
6440 * @ha: Pointer to host adapter structure.
6441 * @old_tddb: ddb tuple
6442 * @new_tddb: ddb tuple
6443 *
6444 * Return QLA_SUCCESS if different IP, different PORT, same iqn,
6445 * same isid
6446 **/
6447static int qla4xxx_should_update_isid(struct scsi_qla_host *ha,
6448 struct ql4_tuple_ddb *old_tddb,
6449 struct ql4_tuple_ddb *new_tddb)
6450{
6451 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr) == 0) {
6452 /* Same ip */
6453 if (old_tddb->port == new_tddb->port)
6454 return QLA_ERROR;
6455 }
6456
6457 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name))
6458 /* different iqn */
6459 return QLA_ERROR;
6460
6461 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0],
6462 sizeof(old_tddb->isid)))
6463 /* different isid */
6464 return QLA_ERROR;
6465
6466 return QLA_SUCCESS;
6467}
6468
6469/**
6470 * qla4xxx_is_flash_ddb_exists - check if fw_ddb_entry already exists in list_nt
6471 * @ha: Pointer to host adapter structure.
6472 * @list_nt: list of nt target.
6473 * @fw_ddb_entry: firmware ddb entry.
6474 *
6475 * This routine check if fw_ddb_entry already exists in list_nt to avoid
6476 * duplicate ddb in list_nt.
6477 * Return QLA_SUCCESS if duplicate ddb exit in list_nl.
6478 * Note: This function also update isid of DDB if required.
6479 **/
6480
13483730
MC		 6481static int qla4xxx_is_flash_ddb_exists(struct scsi_qla_host *ha,
6482 struct list_head *list_nt,
6483 struct dev_db_entry *fw_ddb_entry)
6484{
6485 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp;
6486 struct ql4_tuple_ddb *fw_tddb = NULL;
6487 struct ql4_tuple_ddb *tmp_tddb = NULL;
1cb78d73 6488 int rval, ret = QLA_ERROR;
13483730
MC		 6489
6490 fw_tddb = vzalloc(sizeof(*fw_tddb));
6491 if (!fw_tddb) {
6492 DEBUG2(ql4_printk(KERN_WARNING, ha,
6493 "Memory Allocation failed.\n"));
6494 ret = QLA_SUCCESS;
6495 goto exit_check;
6496 }
6497
6498 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
6499 if (!tmp_tddb) {
6500 DEBUG2(ql4_printk(KERN_WARNING, ha,
6501 "Memory Allocation failed.\n"));
6502 ret = QLA_SUCCESS;
6503 goto exit_check;
6504 }
6505
1cb78d73 6506 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL);
13483730
MC		 6507
6508 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
1cb78d73
VC		 6509 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb,
6510 nt_ddb_idx->flash_isid);
6511 ret = qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, true);
6512 /* found duplicate ddb */
6513 if (ret == QLA_SUCCESS)
6514 goto exit_check;
6515 }
6516
6517 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
6518 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb, NULL);
6519
6520 ret = qla4xxx_should_update_isid(ha, tmp_tddb, fw_tddb);
6521 if (ret == QLA_SUCCESS) {
6522 rval = qla4xxx_update_isid(ha, list_nt, fw_ddb_entry);
6523 if (rval == QLA_SUCCESS)
6524 ret = QLA_ERROR;
6525 else
6526 ret = QLA_SUCCESS;
6527
13483730
MC		 6528 goto exit_check;
6529 }
6530 }
6531
6532exit_check:
6533 if (fw_tddb)
6534 vfree(fw_tddb);
6535 if (tmp_tddb)
6536 vfree(tmp_tddb);
6537 return ret;
6538}
6539
4a4bc2e9 6540static void qla4xxx_free_ddb_list(struct list_head *list_ddb)
13483730 6541{
4a4bc2e9 6542 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
13483730 6543
4a4bc2e9
LC		 6544 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
6545 list_del_init(&ddb_idx->list);
6546 vfree(ddb_idx);
13483730 6547 }
13483730
MC		 6548}
6549
6550static struct iscsi_endpoint *qla4xxx_get_ep_fwdb(struct scsi_qla_host *ha,
6551 struct dev_db_entry *fw_ddb_entry)
6552{
6553 struct iscsi_endpoint *ep;
6554 struct sockaddr_in *addr;
6555 struct sockaddr_in6 *addr6;
3dd4849c
MR		 6556 struct sockaddr *t_addr;
6557 struct sockaddr_storage *dst_addr;
13483730
MC		 6558 char *ip;
6559
6560 /* TODO: need to destroy on unload iscsi_endpoint*/
6561 dst_addr = vmalloc(sizeof(*dst_addr));
6562 if (!dst_addr)
6563 return NULL;
6564
6565 if (fw_ddb_entry->options & DDB_OPT_IPV6_DEVICE) {
3dd4849c
MR		 6566 t_addr = (struct sockaddr *)dst_addr;
6567 t_addr->sa_family = AF_INET6;
13483730
MC		 6568 addr6 = (struct sockaddr_in6 *)dst_addr;
6569 ip = (char *)&addr6->sin6_addr;
6570 memcpy(ip, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN);
6571 addr6->sin6_port = htons(le16_to_cpu(fw_ddb_entry->port));
6572
6573 } else {
3dd4849c
MR		 6574 t_addr = (struct sockaddr *)dst_addr;
6575 t_addr->sa_family = AF_INET;
13483730
MC		 6576 addr = (struct sockaddr_in *)dst_addr;
6577 ip = (char *)&addr->sin_addr;
6578 memcpy(ip, fw_ddb_entry->ip_addr, IP_ADDR_LEN);
6579 addr->sin_port = htons(le16_to_cpu(fw_ddb_entry->port));
6580 }
6581
3dd4849c 6582 ep = qla4xxx_ep_connect(ha->host, (struct sockaddr *)dst_addr, 0);
13483730
MC		 6583 vfree(dst_addr);
6584 return ep;
6585}
6586
6587static int qla4xxx_verify_boot_idx(struct scsi_qla_host *ha, uint16_t idx)
6588{
6589 if (ql4xdisablesysfsboot)
6590 return QLA_SUCCESS;
6591 if (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx)
6592 return QLA_ERROR;
6593 return QLA_SUCCESS;
6594}
6595
6596static void qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha,
1dc8ed5d
MR		 6597 struct ddb_entry *ddb_entry,
6598 uint16_t idx)
13483730 6599{
c28eaaca
NJ		 6600 uint16_t def_timeout;
6601
13483730
MC		 6602 ddb_entry->ddb_type = FLASH_DDB;
6603 ddb_entry->fw_ddb_index = INVALID_ENTRY;
6604 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE;
6605 ddb_entry->ha = ha;
6606 ddb_entry->unblock_sess = qla4xxx_unblock_flash_ddb;
6607 ddb_entry->ddb_change = qla4xxx_flash_ddb_change;
946ac571 6608 ddb_entry->chap_tbl_idx = INVALID_ENTRY;
13483730
MC		 6609
6610 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY);
6611 atomic_set(&ddb_entry->relogin_timer, 0);
6612 atomic_set(&ddb_entry->relogin_retry_count, 0);
c28eaaca 6613 def_timeout = le16_to_cpu(ddb_entry->fw_ddb_entry.def_timeout);
13483730 6614 ddb_entry->default_relogin_timeout =
c28eaaca
NJ		 6615 (def_timeout > LOGIN_TOV) && (def_timeout < LOGIN_TOV * 10) ?
6616 def_timeout : LOGIN_TOV;
13483730
MC		 6617 ddb_entry->default_time2wait =
6618 le16_to_cpu(ddb_entry->fw_ddb_entry.iscsi_def_time2wait);
1dc8ed5d
MR		 6619
6620 if (ql4xdisablesysfsboot &&
6621 (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx))
6622 set_bit(DF_BOOT_TGT, &ddb_entry->flags);
13483730
MC		 6623}
6624
6625static void qla4xxx_wait_for_ip_configuration(struct scsi_qla_host *ha)
6626{
6627 uint32_t idx = 0;
6628 uint32_t ip_idx[IP_ADDR_COUNT] = {0, 1, 2, 3}; /* 4 IP interfaces */
6629 uint32_t sts[MBOX_REG_COUNT];
6630 uint32_t ip_state;
6631 unsigned long wtime;
6632 int ret;
6633
6634 wtime = jiffies + (HZ * IP_CONFIG_TOV);
6635 do {
6636 for (idx = 0; idx < IP_ADDR_COUNT; idx++) {
6637 if (ip_idx[idx] == -1)
6638 continue;
6639
6640 ret = qla4xxx_get_ip_state(ha, 0, ip_idx[idx], sts);
6641
6642 if (ret == QLA_ERROR) {
6643 ip_idx[idx] = -1;
6644 continue;
6645 }
6646
6647 ip_state = (sts[1] & IP_STATE_MASK) >> IP_STATE_SHIFT;
6648
6649 DEBUG2(ql4_printk(KERN_INFO, ha,
6650 "Waiting for IP state for idx = %d, state = 0x%x\n",
6651 ip_idx[idx], ip_state));
6652 if (ip_state == IP_ADDRSTATE_UNCONFIGURED ||
6653 ip_state == IP_ADDRSTATE_INVALID ||
6654 ip_state == IP_ADDRSTATE_PREFERRED ||
6655 ip_state == IP_ADDRSTATE_DEPRICATED ||
6656 ip_state == IP_ADDRSTATE_DISABLING)
6657 ip_idx[idx] = -1;
13483730
MC		 6658 }
6659
6660 /* Break if all IP states checked */
6661 if ((ip_idx[0] == -1) &&
6662 (ip_idx[1] == -1) &&
6663 (ip_idx[2] == -1) &&
6664 (ip_idx[3] == -1))
6665 break;
6666 schedule_timeout_uninterruptible(HZ);
6667 } while (time_after(wtime, jiffies));
6668}
6669
ad8bd45e
MR		 6670static int qla4xxx_cmp_fw_stentry(struct dev_db_entry *fw_ddb_entry,
6671 struct dev_db_entry *flash_ddb_entry)
6672{
6673 uint16_t options = 0;
6674 size_t ip_len = IP_ADDR_LEN;
6675
6676 options = le16_to_cpu(fw_ddb_entry->options);
6677 if (options & DDB_OPT_IPV6_DEVICE)
6678 ip_len = IPv6_ADDR_LEN;
6679
6680 if (memcmp(fw_ddb_entry->ip_addr, flash_ddb_entry->ip_addr, ip_len))
6681 return QLA_ERROR;
6682
6683 if (memcmp(&fw_ddb_entry->isid[0], &flash_ddb_entry->isid[0],
6684 sizeof(fw_ddb_entry->isid)))
6685 return QLA_ERROR;
6686
6687 if (memcmp(&fw_ddb_entry->port, &flash_ddb_entry->port,
6688 sizeof(fw_ddb_entry->port)))
6689 return QLA_ERROR;
6690
6691 return QLA_SUCCESS;
6692}
6693
6694static int qla4xxx_find_flash_st_idx(struct scsi_qla_host *ha,
6695 struct dev_db_entry *fw_ddb_entry,
6696 uint32_t fw_idx, uint32_t *flash_index)
6697{
6698 struct dev_db_entry *flash_ddb_entry;
6699 dma_addr_t flash_ddb_entry_dma;
6700 uint32_t idx = 0;
6701 int max_ddbs;
6702 int ret = QLA_ERROR, status;
6703
6704 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
6705 MAX_DEV_DB_ENTRIES;
6706
6707 flash_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
6708 &flash_ddb_entry_dma);
6709 if (flash_ddb_entry == NULL || fw_ddb_entry == NULL) {
6710 ql4_printk(KERN_ERR, ha, "Out of memory\n");
6711 goto exit_find_st_idx;
6712 }
6713
6714 status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry,
6715 flash_ddb_entry_dma, fw_idx);
6716 if (status == QLA_SUCCESS) {
6717 status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry);
6718 if (status == QLA_SUCCESS) {
6719 *flash_index = fw_idx;
6720 ret = QLA_SUCCESS;
6721 goto exit_find_st_idx;
6722 }
6723 }
6724
6725 for (idx = 0; idx < max_ddbs; idx++) {
6726 status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry,
6727 flash_ddb_entry_dma, idx);
6728 if (status == QLA_ERROR)
6729 continue;
6730
6731 status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry);
6732 if (status == QLA_SUCCESS) {
6733 *flash_index = idx;
6734 ret = QLA_SUCCESS;
6735 goto exit_find_st_idx;
6736 }
6737 }
6738
6739 if (idx == max_ddbs)
6740 ql4_printk(KERN_ERR, ha, "Failed to find ST [%d] in flash\n",
6741 fw_idx);
6742
6743exit_find_st_idx:
6744 if (flash_ddb_entry)
6745 dma_pool_free(ha->fw_ddb_dma_pool, flash_ddb_entry,
6746 flash_ddb_entry_dma);
6747
6748 return ret;
6749}
6750
4a4bc2e9
LC		 6751static void qla4xxx_build_st_list(struct scsi_qla_host *ha,
6752 struct list_head *list_st)
13483730 6753{
4a4bc2e9 6754 struct qla_ddb_index *st_ddb_idx;
13483730 6755 int max_ddbs;
4a4bc2e9
LC		 6756 int fw_idx_size;
6757 struct dev_db_entry *fw_ddb_entry;
6758 dma_addr_t fw_ddb_dma;
13483730
MC		 6759 int ret;
6760 uint32_t idx = 0, next_idx = 0;
6761 uint32_t state = 0, conn_err = 0;
ad8bd45e 6762 uint32_t flash_index = -1;
4a4bc2e9 6763 uint16_t conn_id = 0;
13483730
MC		 6764
6765 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
6766 &fw_ddb_dma);
6767 if (fw_ddb_entry == NULL) {
6768 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
4a4bc2e9 6769 goto exit_st_list;
13483730
MC		 6770 }
6771
4a4bc2e9
LC		 6772 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
6773 MAX_DEV_DB_ENTRIES;
13483730
MC		 6774 fw_idx_size = sizeof(struct qla_ddb_index);
6775
6776 for (idx = 0; idx < max_ddbs; idx = next_idx) {
4a4bc2e9
LC		 6777 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
6778 NULL, &next_idx, &state,
6779 &conn_err, NULL, &conn_id);
13483730
MC		 6780 if (ret == QLA_ERROR)
6781 break;
6782
981c982c
LC		 6783 /* Ignore DDB if invalid state (unassigned) */
6784 if (state == DDB_DS_UNASSIGNED)
6785 goto continue_next_st;
6786
13483730
MC		 6787 /* Check if ST, add to the list_st */
6788 if (strlen((char *) fw_ddb_entry->iscsi_name) != 0)
6789 goto continue_next_st;
6790
6791 st_ddb_idx = vzalloc(fw_idx_size);
6792 if (!st_ddb_idx)
6793 break;
6794
ad8bd45e
MR		 6795 ret = qla4xxx_find_flash_st_idx(ha, fw_ddb_entry, idx,
6796 &flash_index);
6797 if (ret == QLA_ERROR) {
6798 ql4_printk(KERN_ERR, ha,
6799 "No flash entry for ST at idx [%d]\n", idx);
6800 st_ddb_idx->flash_ddb_idx = idx;
6801 } else {
6802 ql4_printk(KERN_INFO, ha,
6803 "ST at idx [%d] is stored at flash [%d]\n",
6804 idx, flash_index);
6805 st_ddb_idx->flash_ddb_idx = flash_index;
6806 }
6807
13483730
MC		 6808 st_ddb_idx->fw_ddb_idx = idx;
6809
4a4bc2e9 6810 list_add_tail(&st_ddb_idx->list, list_st);
13483730
MC		 6811continue_next_st:
6812 if (next_idx == 0)
6813 break;
6814 }
6815
4a4bc2e9
LC		 6816exit_st_list:
6817 if (fw_ddb_entry)
6818 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
6819}
6820
6821/**
6822 * qla4xxx_remove_failed_ddb - Remove inactive or failed ddb from list
6823 * @ha: pointer to adapter structure
6824 * @list_ddb: List from which failed ddb to be removed
6825 *
6826 * Iterate over the list of DDBs and find and remove DDBs that are either in
6827 * no connection active state or failed state
6828 **/
6829static void qla4xxx_remove_failed_ddb(struct scsi_qla_host *ha,
6830 struct list_head *list_ddb)
6831{
6832 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
6833 uint32_t next_idx = 0;
6834 uint32_t state = 0, conn_err = 0;
6835 int ret;
6836
6837 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
6838 ret = qla4xxx_get_fwddb_entry(ha, ddb_idx->fw_ddb_idx,
6839 NULL, 0, NULL, &next_idx, &state,
6840 &conn_err, NULL, NULL);
6841 if (ret == QLA_ERROR)
6842 continue;
6843
6844 if (state == DDB_DS_NO_CONNECTION_ACTIVE ||
6845 state == DDB_DS_SESSION_FAILED) {
6846 list_del_init(&ddb_idx->list);
6847 vfree(ddb_idx);
6848 }
6849 }
6850}
6851
ad8bd45e
MR		 6852static void qla4xxx_update_sess_disc_idx(struct scsi_qla_host *ha,
6853 struct ddb_entry *ddb_entry,
6854 struct dev_db_entry *fw_ddb_entry)
6855{
6856 struct iscsi_cls_session *cls_sess;
6857 struct iscsi_session *sess;
6858 uint32_t max_ddbs = 0;
6859 uint16_t ddb_link = -1;
6860
6861 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
6862 MAX_DEV_DB_ENTRIES;
6863
6864 cls_sess = ddb_entry->sess;
6865 sess = cls_sess->dd_data;
6866
6867 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
6868 if (ddb_link < max_ddbs)
6869 sess->discovery_parent_idx = ddb_link;
6870 else
6871 sess->discovery_parent_idx = DDB_NO_LINK;
6872}
6873
4a4bc2e9
LC		 6874static int qla4xxx_sess_conn_setup(struct scsi_qla_host *ha,
6875 struct dev_db_entry *fw_ddb_entry,
1dc8ed5d 6876 int is_reset, uint16_t idx)
4a4bc2e9
LC		 6877{
6878 struct iscsi_cls_session *cls_sess;
6879 struct iscsi_session *sess;
6880 struct iscsi_cls_conn *cls_conn;
6881 struct iscsi_endpoint *ep;
6882 uint16_t cmds_max = 32;
6883 uint16_t conn_id = 0;
6884 uint32_t initial_cmdsn = 0;
6885 int ret = QLA_SUCCESS;
6886
6887 struct ddb_entry *ddb_entry = NULL;
6888
6889 /* Create session object, with INVALID_ENTRY,
6890 * the targer_id would get set when we issue the login
13483730 6891 */
4a4bc2e9
LC		 6892 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, ha->host,
6893 cmds_max, sizeof(struct ddb_entry),
6894 sizeof(struct ql4_task_data),
6895 initial_cmdsn, INVALID_ENTRY);
6896 if (!cls_sess) {
6897 ret = QLA_ERROR;
6898 goto exit_setup;
6899 }
13483730 6900
4a4bc2e9
LC		 6901 /*
6902 * so calling module_put function to decrement the
6903 * reference count.
6904 **/
6905 module_put(qla4xxx_iscsi_transport.owner);
6906 sess = cls_sess->dd_data;
6907 ddb_entry = sess->dd_data;
6908 ddb_entry->sess = cls_sess;
6909
6910 cls_sess->recovery_tmo = ql4xsess_recovery_tmo;
6911 memcpy(&ddb_entry->fw_ddb_entry, fw_ddb_entry,
6912 sizeof(struct dev_db_entry));
6913
1dc8ed5d 6914 qla4xxx_setup_flash_ddb_entry(ha, ddb_entry, idx);
4a4bc2e9
LC		 6915
6916 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), conn_id);
6917
6918 if (!cls_conn) {
6919 ret = QLA_ERROR;
6920 goto exit_setup;
13483730
MC		 6921 }
6922
4a4bc2e9 6923 ddb_entry->conn = cls_conn;
13483730 6924
4a4bc2e9
LC		 6925 /* Setup ep, for displaying attributes in sysfs */
6926 ep = qla4xxx_get_ep_fwdb(ha, fw_ddb_entry);
6927 if (ep) {
6928 ep->conn = cls_conn;
6929 cls_conn->ep = ep;
6930 } else {
6931 DEBUG2(ql4_printk(KERN_ERR, ha, "Unable to get ep\n"));
6932 ret = QLA_ERROR;
6933 goto exit_setup;
6934 }
13483730 6935
4a4bc2e9
LC		 6936 /* Update sess/conn params */
6937 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn);
ad8bd45e 6938 qla4xxx_update_sess_disc_idx(ha, ddb_entry, fw_ddb_entry);
13483730 6939
4a4bc2e9
LC		 6940 if (is_reset == RESET_ADAPTER) {
6941 iscsi_block_session(cls_sess);
6942 /* Use the relogin path to discover new devices
6943 * by short-circuting the logic of setting
6944 * timer to relogin - instead set the flags
6945 * to initiate login right away.
6946 */
6947 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
6948 set_bit(DF_RELOGIN, &ddb_entry->flags);
6949 }
6950
6951exit_setup:
6952 return ret;
6953}
6954
ad8bd45e
MR		 6955static void qla4xxx_update_fw_ddb_link(struct scsi_qla_host *ha,
6956 struct list_head *list_ddb,
6957 struct dev_db_entry *fw_ddb_entry)
6958{
6959 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
6960 uint16_t ddb_link;
6961
6962 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
6963
6964 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
6965 if (ddb_idx->fw_ddb_idx == ddb_link) {
6966 DEBUG2(ql4_printk(KERN_INFO, ha,
6967 "Updating NT parent idx from [%d] to [%d]\n",
6968 ddb_link, ddb_idx->flash_ddb_idx));
6969 fw_ddb_entry->ddb_link =
6970 cpu_to_le16(ddb_idx->flash_ddb_idx);
6971 return;
6972 }
6973 }
6974}
6975
4a4bc2e9 6976static void qla4xxx_build_nt_list(struct scsi_qla_host *ha,
ad8bd45e
MR		 6977 struct list_head *list_nt,
6978 struct list_head *list_st,
6979 int is_reset)
4a4bc2e9
LC		 6980{
6981 struct dev_db_entry *fw_ddb_entry;
ad8bd45e 6982 struct ddb_entry *ddb_entry = NULL;
4a4bc2e9
LC		 6983 dma_addr_t fw_ddb_dma;
6984 int max_ddbs;
6985 int fw_idx_size;
6986 int ret;
6987 uint32_t idx = 0, next_idx = 0;
6988 uint32_t state = 0, conn_err = 0;
ad8bd45e 6989 uint32_t ddb_idx = -1;
4a4bc2e9 6990 uint16_t conn_id = 0;
ad8bd45e 6991 uint16_t ddb_link = -1;
4a4bc2e9
LC		 6992 struct qla_ddb_index *nt_ddb_idx;
6993
6994 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
6995 &fw_ddb_dma);
6996 if (fw_ddb_entry == NULL) {
6997 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
6998 goto exit_nt_list;
13483730 6999 }
4a4bc2e9
LC		 7000 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
7001 MAX_DEV_DB_ENTRIES;
7002 fw_idx_size = sizeof(struct qla_ddb_index);
13483730
MC		 7003
7004 for (idx = 0; idx < max_ddbs; idx = next_idx) {
4a4bc2e9
LC		 7005 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
7006 NULL, &next_idx, &state,
7007 &conn_err, NULL, &conn_id);
13483730
MC		 7008 if (ret == QLA_ERROR)
7009 break;
7010
7011 if (qla4xxx_verify_boot_idx(ha, idx) != QLA_SUCCESS)
7012 goto continue_next_nt;
7013
7014 /* Check if NT, then add to list it */
7015 if (strlen((char *) fw_ddb_entry->iscsi_name) == 0)
7016 goto continue_next_nt;
7017
ad8bd45e
MR		 7018 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
7019 if (ddb_link < max_ddbs)
7020 qla4xxx_update_fw_ddb_link(ha, list_st, fw_ddb_entry);
7021
4a4bc2e9 7022 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE ||
ad8bd45e
MR		 7023 state == DDB_DS_SESSION_FAILED) &&
7024 (is_reset == INIT_ADAPTER))
4a4bc2e9 7025 goto continue_next_nt;
13483730 7026
4a4bc2e9
LC		 7027 DEBUG2(ql4_printk(KERN_INFO, ha,
7028 "Adding DDB to session = 0x%x\n", idx));
ad8bd45e 7029
4a4bc2e9
LC		 7030 if (is_reset == INIT_ADAPTER) {
7031 nt_ddb_idx = vmalloc(fw_idx_size);
7032 if (!nt_ddb_idx)
7033 break;
13483730 7034
4a4bc2e9 7035 nt_ddb_idx->fw_ddb_idx = idx;
13483730 7036
1cb78d73
VC		 7037 /* Copy original isid as it may get updated in function
7038 * qla4xxx_update_isid(). We need original isid in
7039 * function qla4xxx_compare_tuple_ddb to find duplicate
7040 * target */
7041 memcpy(&nt_ddb_idx->flash_isid[0],
7042 &fw_ddb_entry->isid[0],
7043 sizeof(nt_ddb_idx->flash_isid));
7044
7045 ret = qla4xxx_is_flash_ddb_exists(ha, list_nt,
7046 fw_ddb_entry);
7047 if (ret == QLA_SUCCESS) {
7048 /* free nt_ddb_idx and do not add to list_nt */
4a4bc2e9
LC		 7049 vfree(nt_ddb_idx);
7050 goto continue_next_nt;
13483730 7051 }
1cb78d73
VC		 7052
7053 /* Copy updated isid */
7054 memcpy(&nt_ddb_idx->fw_ddb, fw_ddb_entry,
7055 sizeof(struct dev_db_entry));
7056
4a4bc2e9
LC		 7057 list_add_tail(&nt_ddb_idx->list, list_nt);
7058 } else if (is_reset == RESET_ADAPTER) {
ad8bd45e
MR		 7059 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry,
7060 &ddb_idx);
7061 if (ret == QLA_SUCCESS) {
7062 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha,
7063 ddb_idx);
7064 if (ddb_entry != NULL)
7065 qla4xxx_update_sess_disc_idx(ha,
7066 ddb_entry,
7067 fw_ddb_entry);
4a4bc2e9 7068 goto continue_next_nt;
ad8bd45e 7069 }
13483730 7070 }
4a4bc2e9 7071
1dc8ed5d 7072 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, is_reset, idx);
4a4bc2e9
LC		 7073 if (ret == QLA_ERROR)
7074 goto exit_nt_list;
7075
13483730
MC		 7076continue_next_nt:
7077 if (next_idx == 0)
7078 break;
7079 }
4a4bc2e9
LC		 7080
7081exit_nt_list:
13483730
MC		 7082 if (fw_ddb_entry)
7083 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
4a4bc2e9
LC		 7084}
7085
1e9e2be3 7086static void qla4xxx_build_new_nt_list(struct scsi_qla_host *ha,
ad8bd45e
MR		 7087 struct list_head *list_nt,
7088 uint16_t target_id)
1e9e2be3
AC		 7089{
7090 struct dev_db_entry *fw_ddb_entry;
7091 dma_addr_t fw_ddb_dma;
7092 int max_ddbs;
7093 int fw_idx_size;
7094 int ret;
7095 uint32_t idx = 0, next_idx = 0;
7096 uint32_t state = 0, conn_err = 0;
7097 uint16_t conn_id = 0;
7098 struct qla_ddb_index *nt_ddb_idx;
7099
7100 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
7101 &fw_ddb_dma);
7102 if (fw_ddb_entry == NULL) {
7103 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
7104 goto exit_new_nt_list;
7105 }
7106 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
7107 MAX_DEV_DB_ENTRIES;
7108 fw_idx_size = sizeof(struct qla_ddb_index);
7109
7110 for (idx = 0; idx < max_ddbs; idx = next_idx) {
7111 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
7112 NULL, &next_idx, &state,
7113 &conn_err, NULL, &conn_id);
7114 if (ret == QLA_ERROR)
7115 break;
7116
7117 /* Check if NT, then add it to list */
7118 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0)
7119 goto continue_next_new_nt;
7120
7121 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE))
7122 goto continue_next_new_nt;
7123
7124 DEBUG2(ql4_printk(KERN_INFO, ha,
7125 "Adding DDB to session = 0x%x\n", idx));
7126
7127 nt_ddb_idx = vmalloc(fw_idx_size);
7128 if (!nt_ddb_idx)
7129 break;
7130
7131 nt_ddb_idx->fw_ddb_idx = idx;
7132
ad8bd45e 7133 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL);
1e9e2be3
AC		 7134 if (ret == QLA_SUCCESS) {
7135 /* free nt_ddb_idx and do not add to list_nt */
7136 vfree(nt_ddb_idx);
7137 goto continue_next_new_nt;
7138 }
7139
ad8bd45e
MR		 7140 if (target_id < max_ddbs)
7141 fw_ddb_entry->ddb_link = cpu_to_le16(target_id);
7142
1e9e2be3
AC		 7143 list_add_tail(&nt_ddb_idx->list, list_nt);
7144
7145 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER,
7146 idx);
7147 if (ret == QLA_ERROR)
7148 goto exit_new_nt_list;
7149
7150continue_next_new_nt:
7151 if (next_idx == 0)
7152 break;
7153 }
7154
7155exit_new_nt_list:
7156 if (fw_ddb_entry)
7157 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
7158}
7159
4a4bc2e9 7160/**
1e9e2be3
AC		 7161 * qla4xxx_sysfs_ddb_is_non_persistent - check for non-persistence of ddb entry
7162 * @dev: dev associated with the sysfs entry
7163 * @data: pointer to flashnode session object
4a4bc2e9 7164 *
1e9e2be3
AC		 7165 * Returns:
7166 * 1: if flashnode entry is non-persistent
7167 * 0: if flashnode entry is persistent
4a4bc2e9 7168 **/
1e9e2be3 7169static int qla4xxx_sysfs_ddb_is_non_persistent(struct device *dev, void *data)
4a4bc2e9 7170{
1e9e2be3 7171 struct iscsi_bus_flash_session *fnode_sess;
4a4bc2e9 7172
1e9e2be3
AC		 7173 if (!iscsi_flashnode_bus_match(dev, NULL))
7174 return 0;
4a4bc2e9 7175
1e9e2be3 7176 fnode_sess = iscsi_dev_to_flash_session(dev);
4a4bc2e9 7177
1e9e2be3
AC		 7178 return (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT);
7179}
4a4bc2e9 7180
1e9e2be3
AC		 7181/**
7182 * qla4xxx_sysfs_ddb_tgt_create - Create sysfs entry for target
7183 * @ha: pointer to host
7184 * @fw_ddb_entry: flash ddb data
7185 * @idx: target index
7186 * @user: if set then this call is made from userland else from kernel
7187 *
7188 * Returns:
7189 * On sucess: QLA_SUCCESS
7190 * On failure: QLA_ERROR
7191 *
7192 * This create separate sysfs entries for session and connection attributes of
7193 * the given fw ddb entry.
7194 * If this is invoked as a result of a userspace call then the entry is marked
7195 * as nonpersistent using flash_state field.
7196 **/
28e02f1a
VC		 7197static int qla4xxx_sysfs_ddb_tgt_create(struct scsi_qla_host *ha,
7198 struct dev_db_entry *fw_ddb_entry,
7199 uint16_t *idx, int user)
1e9e2be3
AC		 7200{
7201 struct iscsi_bus_flash_session *fnode_sess = NULL;
7202 struct iscsi_bus_flash_conn *fnode_conn = NULL;
7203 int rc = QLA_ERROR;
4a4bc2e9 7204
1e9e2be3
AC		 7205 fnode_sess = iscsi_create_flashnode_sess(ha->host, *idx,
7206 &qla4xxx_iscsi_transport, 0);
7207 if (!fnode_sess) {
7208 ql4_printk(KERN_ERR, ha,
7209 "%s: Unable to create session sysfs entry for flashnode %d of host%lu\n",
7210 __func__, *idx, ha->host_no);
7211 goto exit_tgt_create;
4a4bc2e9
LC		 7212 }
7213
1e9e2be3
AC		 7214 fnode_conn = iscsi_create_flashnode_conn(ha->host, fnode_sess,
7215 &qla4xxx_iscsi_transport, 0);
7216 if (!fnode_conn) {
7217 ql4_printk(KERN_ERR, ha,
7218 "%s: Unable to create conn sysfs entry for flashnode %d of host%lu\n",
7219 __func__, *idx, ha->host_no);
7220 goto free_sess;
7221 }
c28eaaca 7222
1e9e2be3
AC		 7223 if (user) {
7224 fnode_sess->flash_state = DEV_DB_NON_PERSISTENT;
7225 } else {
7226 fnode_sess->flash_state = DEV_DB_PERSISTENT;
4a4bc2e9 7227
1e9e2be3
AC		 7228 if (*idx == ha->pri_ddb_idx || *idx == ha->sec_ddb_idx)
7229 fnode_sess->is_boot_target = 1;
7230 else
7231 fnode_sess->is_boot_target = 0;
7232 }
f1f2e60e 7233
1e9e2be3
AC		 7234 rc = qla4xxx_copy_from_fwddb_param(fnode_sess, fnode_conn,
7235 fw_ddb_entry);
4a4bc2e9 7236
1e9e2be3
AC		 7237 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n",
7238 __func__, fnode_sess->dev.kobj.name);
4a4bc2e9 7239
1e9e2be3
AC		 7240 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n",
7241 __func__, fnode_conn->dev.kobj.name);
4a4bc2e9 7242
1e9e2be3 7243 return QLA_SUCCESS;
13483730 7244
1e9e2be3
AC		 7245free_sess:
7246 iscsi_destroy_flashnode_sess(fnode_sess);
7247
7248exit_tgt_create:
7249 return QLA_ERROR;
13483730
MC		 7250}
7251
1dc8ed5d 7252/**
1e9e2be3
AC		 7253 * qla4xxx_sysfs_ddb_add - Add new ddb entry in flash
7254 * @shost: pointer to host
7255 * @buf: type of ddb entry (ipv4/ipv6)
7256 * @len: length of buf
1dc8ed5d 7257 *
1e9e2be3
AC		 7258 * This creates new ddb entry in the flash by finding first free index and
7259 * storing default ddb there. And then create sysfs entry for the new ddb entry.
1dc8ed5d 7260 **/
1e9e2be3
AC		 7261static int qla4xxx_sysfs_ddb_add(struct Scsi_Host *shost, const char *buf,
7262 int len)
1dc8ed5d 7263{
1e9e2be3 7264 struct scsi_qla_host *ha = to_qla_host(shost);
1dc8ed5d
MR		 7265 struct dev_db_entry *fw_ddb_entry = NULL;
7266 dma_addr_t fw_ddb_entry_dma;
1e9e2be3
AC		 7267 struct device *dev;
7268 uint16_t idx = 0;
7269 uint16_t max_ddbs = 0;
7270 uint32_t options = 0;
7271 uint32_t rval = QLA_ERROR;
7272
c962c18b
AC		 7273 if (strncasecmp(PORTAL_TYPE_IPV4, buf, 4) &&
7274 strncasecmp(PORTAL_TYPE_IPV6, buf, 4)) {
1e9e2be3
AC		 7275 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Invalid portal type\n",
7276 __func__));
7277 goto exit_ddb_add;
7278 }
1dc8ed5d 7279
a957a7d7 7280 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES :
1dc8ed5d
MR		 7281 MAX_DEV_DB_ENTRIES;
7282
7283 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7284 &fw_ddb_entry_dma, GFP_KERNEL);
7285 if (!fw_ddb_entry) {
1e9e2be3
AC		 7286 DEBUG2(ql4_printk(KERN_ERR, ha,
7287 "%s: Unable to allocate dma buffer\n",
7288 __func__));
7289 goto exit_ddb_add;
1dc8ed5d
MR		 7290 }
7291
1e9e2be3
AC		 7292 dev = iscsi_find_flashnode_sess(ha->host, NULL,
7293 qla4xxx_sysfs_ddb_is_non_persistent);
7294 if (dev) {
7295 ql4_printk(KERN_ERR, ha,
7296 "%s: A non-persistent entry %s found\n",
7297 __func__, dev->kobj.name);
8526cb11 7298 put_device(dev);
1e9e2be3
AC		 7299 goto exit_ddb_add;
7300 }
1dc8ed5d 7301
99937574
AC		 7302 /* Index 0 and 1 are reserved for boot target entries */
7303 for (idx = 2; idx < max_ddbs; idx++) {
1e9e2be3
AC		 7304 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry,
7305 fw_ddb_entry_dma, idx))
7306 break;
7307 }
1dc8ed5d 7308
1e9e2be3
AC		 7309 if (idx == max_ddbs)
7310 goto exit_ddb_add;
1dc8ed5d 7311
1e9e2be3
AC		 7312 if (!strncasecmp("ipv6", buf, 4))
7313 options |= IPV6_DEFAULT_DDB_ENTRY;
1dc8ed5d 7314
1e9e2be3
AC		 7315 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
7316 if (rval == QLA_ERROR)
7317 goto exit_ddb_add;
1dc8ed5d 7318
1e9e2be3 7319 rval = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 1);
1dc8ed5d 7320
1e9e2be3 7321exit_ddb_add:
1dc8ed5d
MR		 7322 if (fw_ddb_entry)
7323 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7324 fw_ddb_entry, fw_ddb_entry_dma);
1e9e2be3
AC		 7325 if (rval == QLA_SUCCESS)
7326 return idx;
7327 else
7328 return -EIO;
1dc8ed5d
MR		 7329}
7330
afaf5a2d 7331/**
1e9e2be3
AC		 7332 * qla4xxx_sysfs_ddb_apply - write the target ddb contents to Flash
7333 * @fnode_sess: pointer to session attrs of flash ddb entry
7334 * @fnode_conn: pointer to connection attrs of flash ddb entry
afaf5a2d 7335 *
1e9e2be3
AC		 7336 * This writes the contents of target ddb buffer to Flash with a valid cookie
7337 * value in order to make the ddb entry persistent.
afaf5a2d 7338 **/
1e9e2be3
AC		 7339static int qla4xxx_sysfs_ddb_apply(struct iscsi_bus_flash_session *fnode_sess,
7340 struct iscsi_bus_flash_conn *fnode_conn)
afaf5a2d 7341{
1e9e2be3
AC		 7342 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7343 struct scsi_qla_host *ha = to_qla_host(shost);
7344 uint32_t dev_db_start_offset = FLASH_OFFSET_DB_INFO;
7345 struct dev_db_entry *fw_ddb_entry = NULL;
7346 dma_addr_t fw_ddb_entry_dma;
7347 uint32_t options = 0;
7348 int rval = 0;
afaf5a2d 7349
1e9e2be3
AC		 7350 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7351 &fw_ddb_entry_dma, GFP_KERNEL);
7352 if (!fw_ddb_entry) {
7353 DEBUG2(ql4_printk(KERN_ERR, ha,
7354 "%s: Unable to allocate dma buffer\n",
7355 __func__));
7356 rval = -ENOMEM;
7357 goto exit_ddb_apply;
7358 }
afaf5a2d 7359
c962c18b 7360 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
1e9e2be3
AC		 7361 options |= IPV6_DEFAULT_DDB_ENTRY;
7362
7363 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
7364 if (rval == QLA_ERROR)
7365 goto exit_ddb_apply;
7366
7367 dev_db_start_offset += (fnode_sess->target_id *
7368 sizeof(*fw_ddb_entry));
7369
7370 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry);
7371 fw_ddb_entry->cookie = DDB_VALID_COOKIE;
7372
7373 rval = qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset,
7374 sizeof(*fw_ddb_entry), FLASH_OPT_RMW_COMMIT);
7375
7376 if (rval == QLA_SUCCESS) {
7377 fnode_sess->flash_state = DEV_DB_PERSISTENT;
7378 ql4_printk(KERN_INFO, ha,
7379 "%s: flash node %u of host %lu written to flash\n",
7380 __func__, fnode_sess->target_id, ha->host_no);
7381 } else {
7382 rval = -EIO;
7383 ql4_printk(KERN_ERR, ha,
7384 "%s: Error while writing flash node %u of host %lu to flash\n",
7385 __func__, fnode_sess->target_id, ha->host_no);
7386 }
7387
7388exit_ddb_apply:
7389 if (fw_ddb_entry)
7390 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7391 fw_ddb_entry, fw_ddb_entry_dma);
7392 return rval;
7393}
7394
7395static ssize_t qla4xxx_sysfs_ddb_conn_open(struct scsi_qla_host *ha,
7396 struct dev_db_entry *fw_ddb_entry,
7397 uint16_t idx)
7398{
7399 struct dev_db_entry *ddb_entry = NULL;
7400 dma_addr_t ddb_entry_dma;
7401 unsigned long wtime;
7402 uint32_t mbx_sts = 0;
7403 uint32_t state = 0, conn_err = 0;
7404 uint16_t tmo = 0;
7405 int ret = 0;
7406
7407 ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*ddb_entry),
7408 &ddb_entry_dma, GFP_KERNEL);
7409 if (!ddb_entry) {
7410 DEBUG2(ql4_printk(KERN_ERR, ha,
7411 "%s: Unable to allocate dma buffer\n",
7412 __func__));
7413 return QLA_ERROR;
7414 }
7415
7416 memcpy(ddb_entry, fw_ddb_entry, sizeof(*ddb_entry));
7417
7418 ret = qla4xxx_set_ddb_entry(ha, idx, ddb_entry_dma, &mbx_sts);
7419 if (ret != QLA_SUCCESS) {
7420 DEBUG2(ql4_printk(KERN_ERR, ha,
7421 "%s: Unable to set ddb entry for index %d\n",
7422 __func__, idx));
7423 goto exit_ddb_conn_open;
7424 }
7425
7426 qla4xxx_conn_open(ha, idx);
7427
7428 /* To ensure that sendtargets is done, wait for at least 12 secs */
7429 tmo = ((ha->def_timeout > LOGIN_TOV) &&
7430 (ha->def_timeout < LOGIN_TOV * 10) ?
7431 ha->def_timeout : LOGIN_TOV);
7432
7433 DEBUG2(ql4_printk(KERN_INFO, ha,
7434 "Default time to wait for login to ddb %d\n", tmo));
7435
7436 wtime = jiffies + (HZ * tmo);
7437 do {
7438 ret = qla4xxx_get_fwddb_entry(ha, idx, NULL, 0, NULL,
7439 NULL, &state, &conn_err, NULL,
7440 NULL);
7441 if (ret == QLA_ERROR)
7442 continue;
7443
7444 if (state == DDB_DS_NO_CONNECTION_ACTIVE ||
7445 state == DDB_DS_SESSION_FAILED)
7446 break;
7447
7448 schedule_timeout_uninterruptible(HZ / 10);
7449 } while (time_after(wtime, jiffies));
7450
7451exit_ddb_conn_open:
7452 if (ddb_entry)
7453 dma_free_coherent(&ha->pdev->dev, sizeof(*ddb_entry),
7454 ddb_entry, ddb_entry_dma);
7455 return ret;
7456}
7457
7458static int qla4xxx_ddb_login_st(struct scsi_qla_host *ha,
ad8bd45e
MR		 7459 struct dev_db_entry *fw_ddb_entry,
7460 uint16_t target_id)
1e9e2be3
AC		 7461{
7462 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
7463 struct list_head list_nt;
7464 uint16_t ddb_index;
7465 int ret = 0;
7466
7467 if (test_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags)) {
7468 ql4_printk(KERN_WARNING, ha,
7469 "%s: A discovery already in progress!\n", __func__);
7470 return QLA_ERROR;
7471 }
7472
7473 INIT_LIST_HEAD(&list_nt);
7474
7475 set_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags);
7476
7477 ret = qla4xxx_get_ddb_index(ha, &ddb_index);
7478 if (ret == QLA_ERROR)
7479 goto exit_login_st_clr_bit;
7480
7481 ret = qla4xxx_sysfs_ddb_conn_open(ha, fw_ddb_entry, ddb_index);
7482 if (ret == QLA_ERROR)
7483 goto exit_login_st;
7484
ad8bd45e 7485 qla4xxx_build_new_nt_list(ha, &list_nt, target_id);
1e9e2be3
AC		 7486
7487 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, &list_nt, list) {
7488 list_del_init(&ddb_idx->list);
7489 qla4xxx_clear_ddb_entry(ha, ddb_idx->fw_ddb_idx);
7490 vfree(ddb_idx);
7491 }
7492
7493exit_login_st:
7494 if (qla4xxx_clear_ddb_entry(ha, ddb_index) == QLA_ERROR) {
7495 ql4_printk(KERN_ERR, ha,
7496 "Unable to clear DDB index = 0x%x\n", ddb_index);
7497 }
7498
7499 clear_bit(ddb_index, ha->ddb_idx_map);
7500
7501exit_login_st_clr_bit:
7502 clear_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags);
7503 return ret;
7504}
7505
7506static int qla4xxx_ddb_login_nt(struct scsi_qla_host *ha,
7507 struct dev_db_entry *fw_ddb_entry,
7508 uint16_t idx)
7509{
7510 int ret = QLA_ERROR;
7511
ad8bd45e 7512 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL);
1e9e2be3
AC		 7513 if (ret != QLA_SUCCESS)
7514 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER,
7515 idx);
7516 else
7517 ret = -EPERM;
7518
7519 return ret;
7520}
7521
7522/**
7523 * qla4xxx_sysfs_ddb_login - Login to the specified target
7524 * @fnode_sess: pointer to session attrs of flash ddb entry
7525 * @fnode_conn: pointer to connection attrs of flash ddb entry
7526 *
7527 * This logs in to the specified target
7528 **/
7529static int qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess,
7530 struct iscsi_bus_flash_conn *fnode_conn)
7531{
7532 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7533 struct scsi_qla_host *ha = to_qla_host(shost);
7534 struct dev_db_entry *fw_ddb_entry = NULL;
7535 dma_addr_t fw_ddb_entry_dma;
7536 uint32_t options = 0;
7537 int ret = 0;
7538
7539 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT) {
7540 ql4_printk(KERN_ERR, ha,
7541 "%s: Target info is not persistent\n", __func__);
7542 ret = -EIO;
7543 goto exit_ddb_login;
7544 }
7545
7546 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7547 &fw_ddb_entry_dma, GFP_KERNEL);
7548 if (!fw_ddb_entry) {
7549 DEBUG2(ql4_printk(KERN_ERR, ha,
7550 "%s: Unable to allocate dma buffer\n",
7551 __func__));
7552 ret = -ENOMEM;
7553 goto exit_ddb_login;
7554 }
7555
c962c18b 7556 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
1e9e2be3
AC		 7557 options |= IPV6_DEFAULT_DDB_ENTRY;
7558
7559 ret = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
7560 if (ret == QLA_ERROR)
7561 goto exit_ddb_login;
7562
7563 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry);
7564 fw_ddb_entry->cookie = DDB_VALID_COOKIE;
7565
7566 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0)
ad8bd45e
MR		 7567 ret = qla4xxx_ddb_login_st(ha, fw_ddb_entry,
7568 fnode_sess->target_id);
1e9e2be3
AC		 7569 else
7570 ret = qla4xxx_ddb_login_nt(ha, fw_ddb_entry,
7571 fnode_sess->target_id);
7572
7573 if (ret > 0)
7574 ret = -EIO;
7575
7576exit_ddb_login:
7577 if (fw_ddb_entry)
7578 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7579 fw_ddb_entry, fw_ddb_entry_dma);
7580 return ret;
7581}
7582
7583/**
7584 * qla4xxx_sysfs_ddb_logout_sid - Logout session for the specified target
7585 * @cls_sess: pointer to session to be logged out
7586 *
7587 * This performs session log out from the specified target
7588 **/
7589static int qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess)
7590{
7591 struct iscsi_session *sess;
7592 struct ddb_entry *ddb_entry = NULL;
7593 struct scsi_qla_host *ha;
7594 struct dev_db_entry *fw_ddb_entry = NULL;
7595 dma_addr_t fw_ddb_entry_dma;
7596 unsigned long flags;
7597 unsigned long wtime;
7598 uint32_t ddb_state;
7599 int options;
7600 int ret = 0;
7601
7602 sess = cls_sess->dd_data;
7603 ddb_entry = sess->dd_data;
7604 ha = ddb_entry->ha;
7605
7606 if (ddb_entry->ddb_type != FLASH_DDB) {
7607 ql4_printk(KERN_ERR, ha, "%s: Not a flash node session\n",
7608 __func__);
7609 ret = -ENXIO;
7610 goto exit_ddb_logout;
7611 }
7612
37719c2a
AC		 7613 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) {
7614 ql4_printk(KERN_ERR, ha,
7615 "%s: Logout from boot target entry is not permitted.\n",
7616 __func__);
7617 ret = -EPERM;
7618 goto exit_ddb_logout;
7619 }
7620
1e9e2be3
AC		 7621 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7622 &fw_ddb_entry_dma, GFP_KERNEL);
7623 if (!fw_ddb_entry) {
7624 ql4_printk(KERN_ERR, ha,
7625 "%s: Unable to allocate dma buffer\n", __func__);
7626 ret = -ENOMEM;
7627 goto exit_ddb_logout;
7628 }
7629
99c6a33b
AC		 7630 if (test_and_set_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags))
7631 goto ddb_logout_init;
7632
7633 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
7634 fw_ddb_entry, fw_ddb_entry_dma,
7635 NULL, NULL, &ddb_state, NULL,
7636 NULL, NULL);
7637 if (ret == QLA_ERROR)
7638 goto ddb_logout_init;
7639
7640 if (ddb_state == DDB_DS_SESSION_ACTIVE)
7641 goto ddb_logout_init;
7642
7643 /* wait until next relogin is triggered using DF_RELOGIN and
7644 * clear DF_RELOGIN to avoid invocation of further relogin
7645 */
7646 wtime = jiffies + (HZ * RELOGIN_TOV);
7647 do {
7648 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags))
7649 goto ddb_logout_init;
7650
7651 schedule_timeout_uninterruptible(HZ);
7652 } while ((time_after(wtime, jiffies)));
7653
7654ddb_logout_init:
7655 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY);
7656 atomic_set(&ddb_entry->relogin_timer, 0);
7657
7658 options = LOGOUT_OPTION_CLOSE_SESSION;
7659 qla4xxx_session_logout_ddb(ha, ddb_entry, options);
7660
7661 memset(fw_ddb_entry, 0, sizeof(*fw_ddb_entry));
1e9e2be3
AC		 7662 wtime = jiffies + (HZ * LOGOUT_TOV);
7663 do {
7664 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
7665 fw_ddb_entry, fw_ddb_entry_dma,
7666 NULL, NULL, &ddb_state, NULL,
7667 NULL, NULL);
7668 if (ret == QLA_ERROR)
7669 goto ddb_logout_clr_sess;
7670
7671 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) ||
7672 (ddb_state == DDB_DS_SESSION_FAILED))
7673 goto ddb_logout_clr_sess;
7674
7675 schedule_timeout_uninterruptible(HZ);
7676 } while ((time_after(wtime, jiffies)));
7677
7678ddb_logout_clr_sess:
7679 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
7680 /*
7681 * we have decremented the reference count of the driver
7682 * when we setup the session to have the driver unload
7683 * to be seamless without actually destroying the
7684 * session
7685 **/
7686 try_module_get(qla4xxx_iscsi_transport.owner);
7687 iscsi_destroy_endpoint(ddb_entry->conn->ep);
7688
7689 spin_lock_irqsave(&ha->hardware_lock, flags);
7690 qla4xxx_free_ddb(ha, ddb_entry);
99c6a33b 7691 clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map);
1e9e2be3
AC		 7692 spin_unlock_irqrestore(&ha->hardware_lock, flags);
7693
7694 iscsi_session_teardown(ddb_entry->sess);
7695
99c6a33b 7696 clear_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags);
1e9e2be3
AC		 7697 ret = QLA_SUCCESS;
7698
7699exit_ddb_logout:
7700 if (fw_ddb_entry)
7701 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7702 fw_ddb_entry, fw_ddb_entry_dma);
7703 return ret;
7704}
7705
7706/**
7707 * qla4xxx_sysfs_ddb_logout - Logout from the specified target
7708 * @fnode_sess: pointer to session attrs of flash ddb entry
7709 * @fnode_conn: pointer to connection attrs of flash ddb entry
7710 *
7711 * This performs log out from the specified target
7712 **/
7713static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess,
7714 struct iscsi_bus_flash_conn *fnode_conn)
7715{
7716 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7717 struct scsi_qla_host *ha = to_qla_host(shost);
7718 struct ql4_tuple_ddb *flash_tddb = NULL;
7719 struct ql4_tuple_ddb *tmp_tddb = NULL;
7720 struct dev_db_entry *fw_ddb_entry = NULL;
7721 struct ddb_entry *ddb_entry = NULL;
7722 dma_addr_t fw_ddb_dma;
7723 uint32_t next_idx = 0;
7724 uint32_t state = 0, conn_err = 0;
7725 uint16_t conn_id = 0;
7726 int idx, index;
7727 int status, ret = 0;
7728
7729 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
7730 &fw_ddb_dma);
7731 if (fw_ddb_entry == NULL) {
7732 ql4_printk(KERN_ERR, ha, "%s:Out of memory\n", __func__);
7733 ret = -ENOMEM;
7734 goto exit_ddb_logout;
7735 }
7736
7737 flash_tddb = vzalloc(sizeof(*flash_tddb));
7738 if (!flash_tddb) {
7739 ql4_printk(KERN_WARNING, ha,
7740 "%s:Memory Allocation failed.\n", __func__);
7741 ret = -ENOMEM;
7742 goto exit_ddb_logout;
7743 }
7744
7745 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
7746 if (!tmp_tddb) {
7747 ql4_printk(KERN_WARNING, ha,
7748 "%s:Memory Allocation failed.\n", __func__);
7749 ret = -ENOMEM;
7750 goto exit_ddb_logout;
7751 }
7752
7753 if (!fnode_sess->targetname) {
7754 ql4_printk(KERN_ERR, ha,
7755 "%s:Cannot logout from SendTarget entry\n",
7756 __func__);
7757 ret = -EPERM;
7758 goto exit_ddb_logout;
7759 }
7760
7761 if (fnode_sess->is_boot_target) {
7762 ql4_printk(KERN_ERR, ha,
7763 "%s: Logout from boot target entry is not permitted.\n",
7764 __func__);
7765 ret = -EPERM;
7766 goto exit_ddb_logout;
7767 }
7768
7769 strncpy(flash_tddb->iscsi_name, fnode_sess->targetname,
7770 ISCSI_NAME_SIZE);
7771
c962c18b 7772 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
1e9e2be3
AC		 7773 sprintf(flash_tddb->ip_addr, "%pI6", fnode_conn->ipaddress);
7774 else
7775 sprintf(flash_tddb->ip_addr, "%pI4", fnode_conn->ipaddress);
7776
7777 flash_tddb->tpgt = fnode_sess->tpgt;
7778 flash_tddb->port = fnode_conn->port;
7779
7780 COPY_ISID(flash_tddb->isid, fnode_sess->isid);
7781
7782 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
7783 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
7784 if (ddb_entry == NULL)
7785 continue;
7786
7787 if (ddb_entry->ddb_type != FLASH_DDB)
7788 continue;
7789
7790 index = ddb_entry->sess->target_id;
7791 status = qla4xxx_get_fwddb_entry(ha, index, fw_ddb_entry,
7792 fw_ddb_dma, NULL, &next_idx,
7793 &state, &conn_err, NULL,
7794 &conn_id);
7795 if (status == QLA_ERROR) {
7796 ret = -ENOMEM;
7797 break;
7798 }
7799
7800 qla4xxx_convert_param_ddb(fw_ddb_entry, tmp_tddb, NULL);
7801
7802 status = qla4xxx_compare_tuple_ddb(ha, flash_tddb, tmp_tddb,
7803 true);
7804 if (status == QLA_SUCCESS) {
7805 ret = qla4xxx_sysfs_ddb_logout_sid(ddb_entry->sess);
7806 break;
7807 }
7808 }
7809
7810 if (idx == MAX_DDB_ENTRIES)
7811 ret = -ESRCH;
7812
7813exit_ddb_logout:
7814 if (flash_tddb)
7815 vfree(flash_tddb);
7816 if (tmp_tddb)
7817 vfree(tmp_tddb);
7818 if (fw_ddb_entry)
7819 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
7820
7821 return ret;
7822}
7823
7824static int
7825qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session *fnode_sess,
7826 int param, char *buf)
7827{
7828 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7829 struct scsi_qla_host *ha = to_qla_host(shost);
7830 struct iscsi_bus_flash_conn *fnode_conn;
7831 struct ql4_chap_table chap_tbl;
7832 struct device *dev;
a2f76636 7833 int parent_type;
1e9e2be3
AC		 7834 int rc = 0;
7835
8526cb11 7836 dev = iscsi_find_flashnode_conn(fnode_sess);
1e9e2be3
AC		 7837 if (!dev)
7838 return -EIO;
7839
7840 fnode_conn = iscsi_dev_to_flash_conn(dev);
7841
7842 switch (param) {
7843 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6:
7844 rc = sprintf(buf, "%u\n", fnode_conn->is_fw_assigned_ipv6);
7845 break;
7846 case ISCSI_FLASHNODE_PORTAL_TYPE:
7847 rc = sprintf(buf, "%s\n", fnode_sess->portal_type);
7848 break;
7849 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE:
7850 rc = sprintf(buf, "%u\n", fnode_sess->auto_snd_tgt_disable);
7851 break;
7852 case ISCSI_FLASHNODE_DISCOVERY_SESS:
7853 rc = sprintf(buf, "%u\n", fnode_sess->discovery_sess);
7854 break;
7855 case ISCSI_FLASHNODE_ENTRY_EN:
7856 rc = sprintf(buf, "%u\n", fnode_sess->entry_state);
7857 break;
7858 case ISCSI_FLASHNODE_HDR_DGST_EN:
7859 rc = sprintf(buf, "%u\n", fnode_conn->hdrdgst_en);
7860 break;
7861 case ISCSI_FLASHNODE_DATA_DGST_EN:
7862 rc = sprintf(buf, "%u\n", fnode_conn->datadgst_en);
7863 break;
7864 case ISCSI_FLASHNODE_IMM_DATA_EN:
7865 rc = sprintf(buf, "%u\n", fnode_sess->imm_data_en);
7866 break;
7867 case ISCSI_FLASHNODE_INITIAL_R2T_EN:
7868 rc = sprintf(buf, "%u\n", fnode_sess->initial_r2t_en);
7869 break;
7870 case ISCSI_FLASHNODE_DATASEQ_INORDER:
7871 rc = sprintf(buf, "%u\n", fnode_sess->dataseq_inorder_en);
7872 break;
7873 case ISCSI_FLASHNODE_PDU_INORDER:
7874 rc = sprintf(buf, "%u\n", fnode_sess->pdu_inorder_en);
7875 break;
7876 case ISCSI_FLASHNODE_CHAP_AUTH_EN:
7877 rc = sprintf(buf, "%u\n", fnode_sess->chap_auth_en);
7878 break;
7879 case ISCSI_FLASHNODE_SNACK_REQ_EN:
7880 rc = sprintf(buf, "%u\n", fnode_conn->snack_req_en);
7881 break;
7882 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN:
7883 rc = sprintf(buf, "%u\n", fnode_sess->discovery_logout_en);
7884 break;
7885 case ISCSI_FLASHNODE_BIDI_CHAP_EN:
7886 rc = sprintf(buf, "%u\n", fnode_sess->bidi_chap_en);
7887 break;
7888 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL:
7889 rc = sprintf(buf, "%u\n", fnode_sess->discovery_auth_optional);
7890 break;
7891 case ISCSI_FLASHNODE_ERL:
7892 rc = sprintf(buf, "%u\n", fnode_sess->erl);
7893 break;
7894 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT:
7895 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_stat);
7896 break;
7897 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE:
7898 rc = sprintf(buf, "%u\n", fnode_conn->tcp_nagle_disable);
7899 break;
7900 case ISCSI_FLASHNODE_TCP_WSF_DISABLE:
7901 rc = sprintf(buf, "%u\n", fnode_conn->tcp_wsf_disable);
7902 break;
7903 case ISCSI_FLASHNODE_TCP_TIMER_SCALE:
7904 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timer_scale);
7905 break;
7906 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN:
7907 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_en);
7908 break;
7909 case ISCSI_FLASHNODE_IP_FRAG_DISABLE:
7910 rc = sprintf(buf, "%u\n", fnode_conn->fragment_disable);
7911 break;
7912 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH:
7913 rc = sprintf(buf, "%u\n", fnode_conn->max_recv_dlength);
7914 break;
7915 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH:
7916 rc = sprintf(buf, "%u\n", fnode_conn->max_xmit_dlength);
7917 break;
7918 case ISCSI_FLASHNODE_FIRST_BURST:
7919 rc = sprintf(buf, "%u\n", fnode_sess->first_burst);
7920 break;
7921 case ISCSI_FLASHNODE_DEF_TIME2WAIT:
7922 rc = sprintf(buf, "%u\n", fnode_sess->time2wait);
7923 break;
7924 case ISCSI_FLASHNODE_DEF_TIME2RETAIN:
7925 rc = sprintf(buf, "%u\n", fnode_sess->time2retain);
7926 break;
7927 case ISCSI_FLASHNODE_MAX_R2T:
7928 rc = sprintf(buf, "%u\n", fnode_sess->max_r2t);
7929 break;
7930 case ISCSI_FLASHNODE_KEEPALIVE_TMO:
7931 rc = sprintf(buf, "%u\n", fnode_conn->keepalive_timeout);
7932 break;
7933 case ISCSI_FLASHNODE_ISID:
7934 rc = sprintf(buf, "%02x%02x%02x%02x%02x%02x\n",
7935 fnode_sess->isid[0], fnode_sess->isid[1],
7936 fnode_sess->isid[2], fnode_sess->isid[3],
7937 fnode_sess->isid[4], fnode_sess->isid[5]);
7938 break;
7939 case ISCSI_FLASHNODE_TSID:
7940 rc = sprintf(buf, "%u\n", fnode_sess->tsid);
7941 break;
7942 case ISCSI_FLASHNODE_PORT:
7943 rc = sprintf(buf, "%d\n", fnode_conn->port);
7944 break;
7945 case ISCSI_FLASHNODE_MAX_BURST:
7946 rc = sprintf(buf, "%u\n", fnode_sess->max_burst);
7947 break;
7948 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO:
7949 rc = sprintf(buf, "%u\n",
7950 fnode_sess->default_taskmgmt_timeout);
7951 break;
7952 case ISCSI_FLASHNODE_IPADDR:
c962c18b 7953 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
1e9e2be3
AC		 7954 rc = sprintf(buf, "%pI6\n", fnode_conn->ipaddress);
7955 else
7956 rc = sprintf(buf, "%pI4\n", fnode_conn->ipaddress);
7957 break;
7958 case ISCSI_FLASHNODE_ALIAS:
7959 if (fnode_sess->targetalias)
7960 rc = sprintf(buf, "%s\n", fnode_sess->targetalias);
7961 else
7962 rc = sprintf(buf, "\n");
7963 break;
7964 case ISCSI_FLASHNODE_REDIRECT_IPADDR:
c962c18b 7965 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
1e9e2be3
AC		 7966 rc = sprintf(buf, "%pI6\n",
7967 fnode_conn->redirect_ipaddr);
7968 else
7969 rc = sprintf(buf, "%pI4\n",
7970 fnode_conn->redirect_ipaddr);
7971 break;
7972 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE:
7973 rc = sprintf(buf, "%u\n", fnode_conn->max_segment_size);
7974 break;
7975 case ISCSI_FLASHNODE_LOCAL_PORT:
7976 rc = sprintf(buf, "%u\n", fnode_conn->local_port);
7977 break;
7978 case ISCSI_FLASHNODE_IPV4_TOS:
7979 rc = sprintf(buf, "%u\n", fnode_conn->ipv4_tos);
7980 break;
7981 case ISCSI_FLASHNODE_IPV6_TC:
c962c18b 7982 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
1e9e2be3
AC		 7983 rc = sprintf(buf, "%u\n",
7984 fnode_conn->ipv6_traffic_class);
7985 else
7986 rc = sprintf(buf, "\n");
7987 break;
7988 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL:
7989 rc = sprintf(buf, "%u\n", fnode_conn->ipv6_flow_label);
7990 break;
7991 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6:
c962c18b 7992 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
1e9e2be3
AC		 7993 rc = sprintf(buf, "%pI6\n",
7994 fnode_conn->link_local_ipv6_addr);
7995 else
7996 rc = sprintf(buf, "\n");
7997 break;
7998 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX:
a2f76636 7999 rc = sprintf(buf, "%u\n", fnode_sess->discovery_parent_idx);
1e9e2be3
AC		 8000 break;
8001 case ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE:
8002 if (fnode_sess->discovery_parent_type == DDB_ISNS)
8003 parent_type = ISCSI_DISC_PARENT_ISNS;
8004 else if (fnode_sess->discovery_parent_type == DDB_NO_LINK)
8005 parent_type = ISCSI_DISC_PARENT_UNKNOWN;
b6130cea 8006 else if (fnode_sess->discovery_parent_type < MAX_DDB_ENTRIES)
1e9e2be3
AC		 8007 parent_type = ISCSI_DISC_PARENT_SENDTGT;
8008 else
8009 parent_type = ISCSI_DISC_PARENT_UNKNOWN;
8010
8011 rc = sprintf(buf, "%s\n",
8012 iscsi_get_discovery_parent_name(parent_type));
8013 break;
8014 case ISCSI_FLASHNODE_NAME:
8015 if (fnode_sess->targetname)
8016 rc = sprintf(buf, "%s\n", fnode_sess->targetname);
8017 else
8018 rc = sprintf(buf, "\n");
8019 break;
8020 case ISCSI_FLASHNODE_TPGT:
8021 rc = sprintf(buf, "%u\n", fnode_sess->tpgt);
8022 break;
8023 case ISCSI_FLASHNODE_TCP_XMIT_WSF:
8024 rc = sprintf(buf, "%u\n", fnode_conn->tcp_xmit_wsf);
8025 break;
8026 case ISCSI_FLASHNODE_TCP_RECV_WSF:
8027 rc = sprintf(buf, "%u\n", fnode_conn->tcp_recv_wsf);
8028 break;
8029 case ISCSI_FLASHNODE_CHAP_OUT_IDX:
8030 rc = sprintf(buf, "%u\n", fnode_sess->chap_out_idx);
8031 break;
8032 case ISCSI_FLASHNODE_USERNAME:
8033 if (fnode_sess->chap_auth_en) {
8034 qla4xxx_get_uni_chap_at_index(ha,
8035 chap_tbl.name,
8036 chap_tbl.secret,
8037 fnode_sess->chap_out_idx);
8038 rc = sprintf(buf, "%s\n", chap_tbl.name);
8039 } else {
8040 rc = sprintf(buf, "\n");
8041 }
8042 break;
8043 case ISCSI_FLASHNODE_PASSWORD:
8044 if (fnode_sess->chap_auth_en) {
8045 qla4xxx_get_uni_chap_at_index(ha,
8046 chap_tbl.name,
8047 chap_tbl.secret,
8048 fnode_sess->chap_out_idx);
8049 rc = sprintf(buf, "%s\n", chap_tbl.secret);
8050 } else {
8051 rc = sprintf(buf, "\n");
8052 }
8053 break;
8054 case ISCSI_FLASHNODE_STATSN:
8055 rc = sprintf(buf, "%u\n", fnode_conn->statsn);
8056 break;
8057 case ISCSI_FLASHNODE_EXP_STATSN:
8058 rc = sprintf(buf, "%u\n", fnode_conn->exp_statsn);
8059 break;
8060 case ISCSI_FLASHNODE_IS_BOOT_TGT:
8061 rc = sprintf(buf, "%u\n", fnode_sess->is_boot_target);
8062 break;
8063 default:
8064 rc = -ENOSYS;
8065 break;
8066 }
8526cb11
MC		 8067
8068 put_device(dev);
1e9e2be3
AC		 8069 return rc;
8070}
8071
8072/**
8073 * qla4xxx_sysfs_ddb_set_param - Set parameter for firmware DDB entry
8074 * @fnode_sess: pointer to session attrs of flash ddb entry
8075 * @fnode_conn: pointer to connection attrs of flash ddb entry
8076 * @data: Parameters and their values to update
8077 * @len: len of data
8078 *
8079 * This sets the parameter of flash ddb entry and writes them to flash
8080 **/
8081static int
8082qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess,
8083 struct iscsi_bus_flash_conn *fnode_conn,
8084 void *data, int len)
8085{
8086 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
8087 struct scsi_qla_host *ha = to_qla_host(shost);
1e9e2be3 8088 struct iscsi_flashnode_param_info *fnode_param;
244c079b 8089 struct ql4_chap_table chap_tbl;
1e9e2be3 8090 struct nlattr *attr;
244c079b 8091 uint16_t chap_out_idx = INVALID_ENTRY;
1e9e2be3
AC		 8092 int rc = QLA_ERROR;
8093 uint32_t rem = len;
8094
244c079b 8095 memset((void *)&chap_tbl, 0, sizeof(chap_tbl));
1e9e2be3
AC		 8096 nla_for_each_attr(attr, data, len, rem) {
8097 fnode_param = nla_data(attr);
8098
8099 switch (fnode_param->param) {
8100 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6:
8101 fnode_conn->is_fw_assigned_ipv6 = fnode_param->value[0];
8102 break;
8103 case ISCSI_FLASHNODE_PORTAL_TYPE:
8104 memcpy(fnode_sess->portal_type, fnode_param->value,
8105 strlen(fnode_sess->portal_type));
8106 break;
8107 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE:
8108 fnode_sess->auto_snd_tgt_disable =
8109 fnode_param->value[0];
8110 break;
8111 case ISCSI_FLASHNODE_DISCOVERY_SESS:
8112 fnode_sess->discovery_sess = fnode_param->value[0];
8113 break;
8114 case ISCSI_FLASHNODE_ENTRY_EN:
8115 fnode_sess->entry_state = fnode_param->value[0];
8116 break;
8117 case ISCSI_FLASHNODE_HDR_DGST_EN:
8118 fnode_conn->hdrdgst_en = fnode_param->value[0];
8119 break;
8120 case ISCSI_FLASHNODE_DATA_DGST_EN:
8121 fnode_conn->datadgst_en = fnode_param->value[0];
8122 break;
8123 case ISCSI_FLASHNODE_IMM_DATA_EN:
8124 fnode_sess->imm_data_en = fnode_param->value[0];
8125 break;
8126 case ISCSI_FLASHNODE_INITIAL_R2T_EN:
8127 fnode_sess->initial_r2t_en = fnode_param->value[0];
8128 break;
8129 case ISCSI_FLASHNODE_DATASEQ_INORDER:
8130 fnode_sess->dataseq_inorder_en = fnode_param->value[0];
8131 break;
8132 case ISCSI_FLASHNODE_PDU_INORDER:
8133 fnode_sess->pdu_inorder_en = fnode_param->value[0];
8134 break;
8135 case ISCSI_FLASHNODE_CHAP_AUTH_EN:
8136 fnode_sess->chap_auth_en = fnode_param->value[0];
244c079b
AC		 8137 /* Invalidate chap index if chap auth is disabled */
8138 if (!fnode_sess->chap_auth_en)
8139 fnode_sess->chap_out_idx = INVALID_ENTRY;
8140
1e9e2be3
AC		 8141 break;
8142 case ISCSI_FLASHNODE_SNACK_REQ_EN:
8143 fnode_conn->snack_req_en = fnode_param->value[0];
8144 break;
8145 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN:
8146 fnode_sess->discovery_logout_en = fnode_param->value[0];
8147 break;
8148 case ISCSI_FLASHNODE_BIDI_CHAP_EN:
8149 fnode_sess->bidi_chap_en = fnode_param->value[0];
8150 break;
8151 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL:
8152 fnode_sess->discovery_auth_optional =
8153 fnode_param->value[0];
8154 break;
8155 case ISCSI_FLASHNODE_ERL:
8156 fnode_sess->erl = fnode_param->value[0];
8157 break;
8158 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT:
8159 fnode_conn->tcp_timestamp_stat = fnode_param->value[0];
8160 break;
8161 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE:
8162 fnode_conn->tcp_nagle_disable = fnode_param->value[0];
8163 break;
8164 case ISCSI_FLASHNODE_TCP_WSF_DISABLE:
8165 fnode_conn->tcp_wsf_disable = fnode_param->value[0];
8166 break;
8167 case ISCSI_FLASHNODE_TCP_TIMER_SCALE:
8168 fnode_conn->tcp_timer_scale = fnode_param->value[0];
8169 break;
8170 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN:
8171 fnode_conn->tcp_timestamp_en = fnode_param->value[0];
8172 break;
8173 case ISCSI_FLASHNODE_IP_FRAG_DISABLE:
8174 fnode_conn->fragment_disable = fnode_param->value[0];
8175 break;
8176 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH:
8177 fnode_conn->max_recv_dlength =
8178 *(unsigned *)fnode_param->value;
8179 break;
8180 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH:
8181 fnode_conn->max_xmit_dlength =
8182 *(unsigned *)fnode_param->value;
8183 break;
8184 case ISCSI_FLASHNODE_FIRST_BURST:
8185 fnode_sess->first_burst =
8186 *(unsigned *)fnode_param->value;
8187 break;
8188 case ISCSI_FLASHNODE_DEF_TIME2WAIT:
8189 fnode_sess->time2wait = *(uint16_t *)fnode_param->value;
8190 break;
8191 case ISCSI_FLASHNODE_DEF_TIME2RETAIN:
8192 fnode_sess->time2retain =
8193 *(uint16_t *)fnode_param->value;
8194 break;
8195 case ISCSI_FLASHNODE_MAX_R2T:
8196 fnode_sess->max_r2t =
8197 *(uint16_t *)fnode_param->value;
8198 break;
8199 case ISCSI_FLASHNODE_KEEPALIVE_TMO:
8200 fnode_conn->keepalive_timeout =
8201 *(uint16_t *)fnode_param->value;
8202 break;
8203 case ISCSI_FLASHNODE_ISID:
8204 memcpy(fnode_sess->isid, fnode_param->value,
8205 sizeof(fnode_sess->isid));
8206 break;
8207 case ISCSI_FLASHNODE_TSID:
8208 fnode_sess->tsid = *(uint16_t *)fnode_param->value;
8209 break;
8210 case ISCSI_FLASHNODE_PORT:
8211 fnode_conn->port = *(uint16_t *)fnode_param->value;
8212 break;
8213 case ISCSI_FLASHNODE_MAX_BURST:
8214 fnode_sess->max_burst = *(unsigned *)fnode_param->value;
8215 break;
8216 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO:
8217 fnode_sess->default_taskmgmt_timeout =
8218 *(uint16_t *)fnode_param->value;
8219 break;
8220 case ISCSI_FLASHNODE_IPADDR:
8221 memcpy(fnode_conn->ipaddress, fnode_param->value,
8222 IPv6_ADDR_LEN);
8223 break;
8224 case ISCSI_FLASHNODE_ALIAS:
8225 rc = iscsi_switch_str_param(&fnode_sess->targetalias,
8226 (char *)fnode_param->value);
8227 break;
8228 case ISCSI_FLASHNODE_REDIRECT_IPADDR:
8229 memcpy(fnode_conn->redirect_ipaddr, fnode_param->value,
8230 IPv6_ADDR_LEN);
8231 break;
8232 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE:
8233 fnode_conn->max_segment_size =
8234 *(unsigned *)fnode_param->value;
8235 break;
8236 case ISCSI_FLASHNODE_LOCAL_PORT:
8237 fnode_conn->local_port =
8238 *(uint16_t *)fnode_param->value;
8239 break;
8240 case ISCSI_FLASHNODE_IPV4_TOS:
8241 fnode_conn->ipv4_tos = fnode_param->value[0];
8242 break;
8243 case ISCSI_FLASHNODE_IPV6_TC:
8244 fnode_conn->ipv6_traffic_class = fnode_param->value[0];
8245 break;
8246 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL:
8247 fnode_conn->ipv6_flow_label = fnode_param->value[0];
8248 break;
8249 case ISCSI_FLASHNODE_NAME:
8250 rc = iscsi_switch_str_param(&fnode_sess->targetname,
8251 (char *)fnode_param->value);
8252 break;
8253 case ISCSI_FLASHNODE_TPGT:
8254 fnode_sess->tpgt = *(uint16_t *)fnode_param->value;
8255 break;
8256 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6:
8257 memcpy(fnode_conn->link_local_ipv6_addr,
8258 fnode_param->value, IPv6_ADDR_LEN);
8259 break;
65560166
AC		 8260 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX:
8261 fnode_sess->discovery_parent_idx =
1e9e2be3
AC		 8262 *(uint16_t *)fnode_param->value;
8263 break;
8264 case ISCSI_FLASHNODE_TCP_XMIT_WSF:
8265 fnode_conn->tcp_xmit_wsf =
8266 *(uint8_t *)fnode_param->value;
8267 break;
8268 case ISCSI_FLASHNODE_TCP_RECV_WSF:
8269 fnode_conn->tcp_recv_wsf =
8270 *(uint8_t *)fnode_param->value;
8271 break;
8272 case ISCSI_FLASHNODE_STATSN:
8273 fnode_conn->statsn = *(uint32_t *)fnode_param->value;
8274 break;
8275 case ISCSI_FLASHNODE_EXP_STATSN:
8276 fnode_conn->exp_statsn =
8277 *(uint32_t *)fnode_param->value;
8278 break;
244c079b
AC		 8279 case ISCSI_FLASHNODE_CHAP_OUT_IDX:
8280 chap_out_idx = *(uint16_t *)fnode_param->value;
8281 if (!qla4xxx_get_uni_chap_at_index(ha,
8282 chap_tbl.name,
8283 chap_tbl.secret,
8284 chap_out_idx)) {
8285 fnode_sess->chap_out_idx = chap_out_idx;
8286 /* Enable chap auth if chap index is valid */
8287 fnode_sess->chap_auth_en = QL4_PARAM_ENABLE;
8288 }
8289 break;
1e9e2be3
AC		 8290 default:
8291 ql4_printk(KERN_ERR, ha,
8292 "%s: No such sysfs attribute\n", __func__);
8293 rc = -ENOSYS;
8294 goto exit_set_param;
8295 }
8296 }
8297
8298 rc = qla4xxx_sysfs_ddb_apply(fnode_sess, fnode_conn);
8299
8300exit_set_param:
8301 return rc;
8302}
8303
8304/**
8305 * qla4xxx_sysfs_ddb_delete - Delete firmware DDB entry
8306 * @fnode_sess: pointer to session attrs of flash ddb entry
8307 *
8308 * This invalidates the flash ddb entry at the given index
8309 **/
8310static int qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess)
8311{
8312 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
8313 struct scsi_qla_host *ha = to_qla_host(shost);
8314 uint32_t dev_db_start_offset;
8315 uint32_t dev_db_end_offset;
8316 struct dev_db_entry *fw_ddb_entry = NULL;
8317 dma_addr_t fw_ddb_entry_dma;
8318 uint16_t *ddb_cookie = NULL;
b6130cea 8319 size_t ddb_size = 0;
039acc1e 8320 void *pddb = NULL;
1e9e2be3
AC		 8321 int target_id;
8322 int rc = 0;
8323
1e9e2be3
AC		 8324 if (fnode_sess->is_boot_target) {
8325 rc = -EPERM;
8326 DEBUG2(ql4_printk(KERN_ERR, ha,
8327 "%s: Deletion of boot target entry is not permitted.\n",
8328 __func__));
8329 goto exit_ddb_del;
8330 }
8331
8332 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT)
8333 goto sysfs_ddb_del;
8334
1e9e2be3
AC		 8335 if (is_qla40XX(ha)) {
8336 dev_db_start_offset = FLASH_OFFSET_DB_INFO;
039acc1e
AC		 8337 dev_db_end_offset = FLASH_OFFSET_DB_END;
8338 dev_db_start_offset += (fnode_sess->target_id *
8339 sizeof(*fw_ddb_entry));
8340 ddb_size = sizeof(*fw_ddb_entry);
1e9e2be3
AC		 8341 } else {
8342 dev_db_start_offset = FLASH_RAW_ACCESS_ADDR +
8343 (ha->hw.flt_region_ddb << 2);
8344 /* flt_ddb_size is DDB table size for both ports
8345 * so divide it by 2 to calculate the offset for second port
8346 */
8347 if (ha->port_num == 1)
8348 dev_db_start_offset += (ha->hw.flt_ddb_size / 2);
1e9e2be3 8349
039acc1e
AC		 8350 dev_db_end_offset = dev_db_start_offset +
8351 (ha->hw.flt_ddb_size / 2);
8352
8353 dev_db_start_offset += (fnode_sess->target_id *
8354 sizeof(*fw_ddb_entry));
1bcb5619 8355 dev_db_start_offset += offsetof(struct dev_db_entry, cookie);
039acc1e
AC		 8356
8357 ddb_size = sizeof(*ddb_cookie);
8358 }
1e9e2be3
AC		 8359
8360 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: start offset=%u, end offset=%u\n",
8361 __func__, dev_db_start_offset, dev_db_end_offset));
8362
8363 if (dev_db_start_offset > dev_db_end_offset) {
8364 rc = -EIO;
8365 DEBUG2(ql4_printk(KERN_ERR, ha, "%s:Invalid DDB index %u\n",
8366 __func__, fnode_sess->target_id));
8367 goto exit_ddb_del;
8368 }
8369
039acc1e
AC		 8370 pddb = dma_alloc_coherent(&ha->pdev->dev, ddb_size,
8371 &fw_ddb_entry_dma, GFP_KERNEL);
8372 if (!pddb) {
8373 rc = -ENOMEM;
8374 DEBUG2(ql4_printk(KERN_ERR, ha,
8375 "%s: Unable to allocate dma buffer\n",
8376 __func__));
8377 goto exit_ddb_del;
8378 }
8379
8380 if (is_qla40XX(ha)) {
8381 fw_ddb_entry = pddb;
8382 memset(fw_ddb_entry, 0, ddb_size);
8383 ddb_cookie = &fw_ddb_entry->cookie;
8384 } else {
8385 ddb_cookie = pddb;
8386 }
8387
1e9e2be3
AC		 8388 /* invalidate the cookie */
8389 *ddb_cookie = 0xFFEE;
8390 qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset,
039acc1e 8391 ddb_size, FLASH_OPT_RMW_COMMIT);
1e9e2be3
AC		 8392
8393sysfs_ddb_del:
8394 target_id = fnode_sess->target_id;
8395 iscsi_destroy_flashnode_sess(fnode_sess);
8396 ql4_printk(KERN_INFO, ha,
8397 "%s: session and conn entries for flashnode %u of host %lu deleted\n",
8398 __func__, target_id, ha->host_no);
8399exit_ddb_del:
039acc1e
AC		 8400 if (pddb)
8401 dma_free_coherent(&ha->pdev->dev, ddb_size, pddb,
8402 fw_ddb_entry_dma);
1e9e2be3
AC		 8403 return rc;
8404}
8405
8406/**
8407 * qla4xxx_sysfs_ddb_export - Create sysfs entries for firmware DDBs
8408 * @ha: pointer to adapter structure
8409 *
8410 * Export the firmware DDB for all send targets and normal targets to sysfs.
8411 **/
8412static int qla4xxx_sysfs_ddb_export(struct scsi_qla_host *ha)
8413{
8414 struct dev_db_entry *fw_ddb_entry = NULL;
8415 dma_addr_t fw_ddb_entry_dma;
8416 uint16_t max_ddbs;
8417 uint16_t idx = 0;
8418 int ret = QLA_SUCCESS;
8419
8420 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev,
8421 sizeof(*fw_ddb_entry),
8422 &fw_ddb_entry_dma, GFP_KERNEL);
8423 if (!fw_ddb_entry) {
8424 DEBUG2(ql4_printk(KERN_ERR, ha,
8425 "%s: Unable to allocate dma buffer\n",
8426 __func__));
8427 return -ENOMEM;
8428 }
8429
a957a7d7 8430 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES :
1e9e2be3
AC		 8431 MAX_DEV_DB_ENTRIES;
8432
8433 for (idx = 0; idx < max_ddbs; idx++) {
8434 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry, fw_ddb_entry_dma,
8435 idx))
8436 continue;
8437
8438 ret = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 0);
8439 if (ret) {
8440 ret = -EIO;
8441 break;
8442 }
8443 }
8444
8445 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry,
8446 fw_ddb_entry_dma);
8447
8448 return ret;
8449}
8450
8451static void qla4xxx_sysfs_ddb_remove(struct scsi_qla_host *ha)
8452{
8453 iscsi_destroy_all_flashnode(ha->host);
8454}
8455
8456/**
8457 * qla4xxx_build_ddb_list - Build ddb list and setup sessions
8458 * @ha: pointer to adapter structure
8459 * @is_reset: Is this init path or reset path
8460 *
8461 * Create a list of sendtargets (st) from firmware DDBs, issue send targets
8462 * using connection open, then create the list of normal targets (nt)
8463 * from firmware DDBs. Based on the list of nt setup session and connection
8464 * objects.
8465 **/
8466void qla4xxx_build_ddb_list(struct scsi_qla_host *ha, int is_reset)
8467{
8468 uint16_t tmo = 0;
8469 struct list_head list_st, list_nt;
8470 struct qla_ddb_index *st_ddb_idx, *st_ddb_idx_tmp;
8471 unsigned long wtime;
8472
8473 if (!test_bit(AF_LINK_UP, &ha->flags)) {
8474 set_bit(AF_BUILD_DDB_LIST, &ha->flags);
8475 ha->is_reset = is_reset;
8476 return;
8477 }
8478
8479 INIT_LIST_HEAD(&list_st);
8480 INIT_LIST_HEAD(&list_nt);
8481
8482 qla4xxx_build_st_list(ha, &list_st);
8483
8484 /* Before issuing conn open mbox, ensure all IPs states are configured
8485 * Note, conn open fails if IPs are not configured
8486 */
8487 qla4xxx_wait_for_ip_configuration(ha);
8488
8489 /* Go thru the STs and fire the sendtargets by issuing conn open mbx */
8490 list_for_each_entry_safe(st_ddb_idx, st_ddb_idx_tmp, &list_st, list) {
8491 qla4xxx_conn_open(ha, st_ddb_idx->fw_ddb_idx);
8492 }
8493
8494 /* Wait to ensure all sendtargets are done for min 12 sec wait */
8495 tmo = ((ha->def_timeout > LOGIN_TOV) &&
8496 (ha->def_timeout < LOGIN_TOV * 10) ?
8497 ha->def_timeout : LOGIN_TOV);
8498
8499 DEBUG2(ql4_printk(KERN_INFO, ha,
8500 "Default time to wait for build ddb %d\n", tmo));
8501
8502 wtime = jiffies + (HZ * tmo);
8503 do {
8504 if (list_empty(&list_st))
8505 break;
8506
8507 qla4xxx_remove_failed_ddb(ha, &list_st);
8508 schedule_timeout_uninterruptible(HZ / 10);
8509 } while (time_after(wtime, jiffies));
8510
1e9e2be3 8511
ad8bd45e 8512 qla4xxx_build_nt_list(ha, &list_nt, &list_st, is_reset);
1e9e2be3 8513
ad8bd45e 8514 qla4xxx_free_ddb_list(&list_st);
1e9e2be3
AC		 8515 qla4xxx_free_ddb_list(&list_nt);
8516
8517 qla4xxx_free_ddb_index(ha);
8518}
8519
8520/**
8521 * qla4xxx_wait_login_resp_boot_tgt - Wait for iSCSI boot target login
8522 * response.
8523 * @ha: pointer to adapter structure
8524 *
8525 * When the boot entry is normal iSCSI target then DF_BOOT_TGT flag will be
8526 * set in DDB and we will wait for login response of boot targets during
8527 * probe.
8528 **/
8529static void qla4xxx_wait_login_resp_boot_tgt(struct scsi_qla_host *ha)
8530{
8531 struct ddb_entry *ddb_entry;
8532 struct dev_db_entry *fw_ddb_entry = NULL;
8533 dma_addr_t fw_ddb_entry_dma;
8534 unsigned long wtime;
8535 uint32_t ddb_state;
8536 int max_ddbs, idx, ret;
8537
8538 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
8539 MAX_DEV_DB_ENTRIES;
8540
8541 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8542 &fw_ddb_entry_dma, GFP_KERNEL);
8543 if (!fw_ddb_entry) {
8544 ql4_printk(KERN_ERR, ha,
8545 "%s: Unable to allocate dma buffer\n", __func__);
8546 goto exit_login_resp;
8547 }
8548
8549 wtime = jiffies + (HZ * BOOT_LOGIN_RESP_TOV);
8550
8551 for (idx = 0; idx < max_ddbs; idx++) {
8552 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
8553 if (ddb_entry == NULL)
8554 continue;
8555
8556 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) {
8557 DEBUG2(ql4_printk(KERN_INFO, ha,
8558 "%s: DDB index [%d]\n", __func__,
8559 ddb_entry->fw_ddb_index));
8560 do {
8561 ret = qla4xxx_get_fwddb_entry(ha,
8562 ddb_entry->fw_ddb_index,
8563 fw_ddb_entry, fw_ddb_entry_dma,
8564 NULL, NULL, &ddb_state, NULL,
8565 NULL, NULL);
8566 if (ret == QLA_ERROR)
8567 goto exit_login_resp;
8568
8569 if ((ddb_state == DDB_DS_SESSION_ACTIVE) ||
8570 (ddb_state == DDB_DS_SESSION_FAILED))
8571 break;
8572
8573 schedule_timeout_uninterruptible(HZ);
8574
8575 } while ((time_after(wtime, jiffies)));
8576
8577 if (!time_after(wtime, jiffies)) {
8578 DEBUG2(ql4_printk(KERN_INFO, ha,
8579 "%s: Login response wait timer expired\n",
8580 __func__));
8581 goto exit_login_resp;
8582 }
8583 }
8584 }
8585
8586exit_login_resp:
8587 if (fw_ddb_entry)
8588 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8589 fw_ddb_entry, fw_ddb_entry_dma);
8590}
8591
8592/**
8593 * qla4xxx_probe_adapter - callback function to probe HBA
8594 * @pdev: pointer to pci_dev structure
8595 * @pci_device_id: pointer to pci_device entry
8596 *
8597 * This routine will probe for Qlogic 4xxx iSCSI host adapters.
8598 * It returns zero if successful. It also initializes all data necessary for
8599 * the driver.
8600 **/
8601static int qla4xxx_probe_adapter(struct pci_dev *pdev,
8602 const struct pci_device_id *ent)
8603{
8604 int ret = -ENODEV, status;
8605 struct Scsi_Host *host;
8606 struct scsi_qla_host *ha;
8607 uint8_t init_retry_count = 0;
8608 char buf[34];
8609 struct qla4_8xxx_legacy_intr_set *nx_legacy_intr;
8610 uint32_t dev_state;
8611
8612 if (pci_enable_device(pdev))
8613 return -1;
8614
8615 host = iscsi_host_alloc(&qla4xxx_driver_template, sizeof(*ha), 0);
8616 if (host == NULL) {
afaf5a2d
DS		 8617 printk(KERN_WARNING
8618 "qla4xxx: Couldn't allocate host from scsi layer!\n");
8619 goto probe_disable_device;
8620 }
8621
8622 /* Clear our data area */
b3a271a9 8623 ha = to_qla_host(host);
afaf5a2d
DS		 8624 memset(ha, 0, sizeof(*ha));
8625
8626 /* Save the information from PCI BIOS. */
8627 ha->pdev = pdev;
8628 ha->host = host;
8629 ha->host_no = host->host_no;
6e7b4292 8630 ha->func_num = PCI_FUNC(ha->pdev->devfn);
afaf5a2d 8631
2232be0d
LC		 8632 pci_enable_pcie_error_reporting(pdev);
8633
f4f5df23
VC		 8634 /* Setup Runtime configurable options */
8635 if (is_qla8022(ha)) {
7664a1fd 8636 ha->isp_ops = &qla4_82xx_isp_ops;
33693c7a 8637 ha->reg_tbl = (uint32_t *) qla4_82xx_reg_tbl;
f4f5df23
VC		 8638 ha->qdr_sn_window = -1;
8639 ha->ddr_mn_window = -1;
8640 ha->curr_window = 255;
f4f5df23
VC		 8641 nx_legacy_intr = &legacy_intr[ha->func_num];
8642 ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit;
8643 ha->nx_legacy_intr.tgt_status_reg =
8644 nx_legacy_intr->tgt_status_reg;
8645 ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg;
8646 ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg;
b37ca418 8647 } else if (is_qla8032(ha) || is_qla8042(ha)) {
6e7b4292
VC		 8648 ha->isp_ops = &qla4_83xx_isp_ops;
8649 ha->reg_tbl = (uint32_t *)qla4_83xx_reg_tbl;
f4f5df23
VC		 8650 } else {
8651 ha->isp_ops = &qla4xxx_isp_ops;
8652 }
8653
6e7b4292
VC		 8654 if (is_qla80XX(ha)) {
8655 rwlock_init(&ha->hw_lock);
8656 ha->pf_bit = ha->func_num << 16;
8657 /* Set EEH reset type to fundamental if required by hba */
2232be0d 8658 pdev->needs_freset = 1;
6e7b4292 8659 }
2232be0d 8660
afaf5a2d 8661 /* Configure PCI I/O space. */
f4f5df23 8662 ret = ha->isp_ops->iospace_config(ha);
afaf5a2d 8663 if (ret)
f4f5df23 8664 goto probe_failed_ioconfig;
afaf5a2d 8665
c2660df3 8666 ql4_printk(KERN_INFO, ha, "Found an ISP%04x, irq %d, iobase 0x%p\n",
afaf5a2d
DS		 8667 pdev->device, pdev->irq, ha->reg);
8668
8669 qla4xxx_config_dma_addressing(ha);
8670
8671 /* Initialize lists and spinlocks. */
afaf5a2d
DS		 8672 INIT_LIST_HEAD(&ha->free_srb_q);
8673
8674 mutex_init(&ha->mbox_sem);
4549415a 8675 mutex_init(&ha->chap_sem);
f4f5df23 8676 init_completion(&ha->mbx_intr_comp);
95d31262 8677 init_completion(&ha->disable_acb_comp);
df86f771
VC		 8678 init_completion(&ha->idc_comp);
8679 init_completion(&ha->link_up_comp);
8680 init_completion(&ha->disable_acb_comp);
afaf5a2d
DS		 8681
8682 spin_lock_init(&ha->hardware_lock);
8e9157c8 8683 spin_lock_init(&ha->work_lock);
afaf5a2d 8684
ff884430
VC		 8685 /* Initialize work list */
8686 INIT_LIST_HEAD(&ha->work_list);
8687
afaf5a2d
DS		 8688 /* Allocate dma buffers */
8689 if (qla4xxx_mem_alloc(ha)) {
c2660df3
VC		 8690 ql4_printk(KERN_WARNING, ha,
8691 "[ERROR] Failed to allocate memory for adapter\n");
afaf5a2d
DS		 8692
8693 ret = -ENOMEM;
8694 goto probe_failed;
8695 }
8696
b3a271a9
MR		 8697 host->cmd_per_lun = 3;
8698 host->max_channel = 0;
8699 host->max_lun = MAX_LUNS - 1;
8700 host->max_id = MAX_TARGETS;
8701 host->max_cmd_len = IOCB_MAX_CDB_LEN;
8702 host->can_queue = MAX_SRBS ;
8703 host->transportt = qla4xxx_scsi_transport;
8704
8705 ret = scsi_init_shared_tag_map(host, MAX_SRBS);
8706 if (ret) {
8707 ql4_printk(KERN_WARNING, ha,
8708 "%s: scsi_init_shared_tag_map failed\n", __func__);
8709 goto probe_failed;
8710 }
8711
8712 pci_set_drvdata(pdev, ha);
8713
8714 ret = scsi_add_host(host, &pdev->dev);
8715 if (ret)
8716 goto probe_failed;
8717
6e7b4292
VC		 8718 if (is_qla80XX(ha))
8719 qla4_8xxx_get_flash_info(ha);
8720
b37ca418 8721 if (is_qla8032(ha) || is_qla8042(ha)) {
6e7b4292
VC		 8722 qla4_83xx_read_reset_template(ha);
8723 /*
8724 * NOTE: If ql4dontresethba==1, set IDC_CTRL DONTRESET_BIT0.
8725 * If DONRESET_BIT0 is set, drivers should not set dev_state
8726 * to NEED_RESET. But if NEED_RESET is set, drivers should
8727 * should honor the reset.
8728 */
8729 if (ql4xdontresethba == 1)
8730 qla4_83xx_set_idc_dontreset(ha);
8731 }
f4f5df23 8732
afaf5a2d
DS		 8733 /*
8734 * Initialize the Host adapter request/response queues and
8735 * firmware
8736 * NOTE: interrupts enabled upon successful completion
8737 */
13483730 8738 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER);
7977f825
PV		 8739
8740 /* Dont retry adapter initialization if IRQ allocation failed */
37418cc6 8741 if (is_qla80XX(ha) && (status == QLA_ERROR))
7977f825
PV		 8742 goto skip_retry_init;
8743
f4f5df23
VC		 8744 while ((!test_bit(AF_ONLINE, &ha->flags)) &&
8745 init_retry_count++ < MAX_INIT_RETRIES) {
f9880e76 8746
6e7b4292 8747 if (is_qla80XX(ha)) {
33693c7a
VC		 8748 ha->isp_ops->idc_lock(ha);
8749 dev_state = qla4_8xxx_rd_direct(ha,
e951aca1 8750 QLA8XXX_CRB_DEV_STATE);
33693c7a 8751 ha->isp_ops->idc_unlock(ha);
de8c72da 8752 if (dev_state == QLA8XXX_DEV_FAILED) {
f9880e76
PM		 8753 ql4_printk(KERN_WARNING, ha, "%s: don't retry "
8754 "initialize adapter. H/W is in failed state\n",
8755 __func__);
8756 break;
8757 }
8758 }
afaf5a2d
DS		 8759 DEBUG2(printk("scsi: %s: retrying adapter initialization "
8760 "(%d)\n", __func__, init_retry_count));
f4f5df23
VC		 8761
8762 if (ha->isp_ops->reset_chip(ha) == QLA_ERROR)
8763 continue;
8764
13483730 8765 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER);
37418cc6
NJ		 8766 if (is_qla80XX(ha) && (status == QLA_ERROR)) {
8767 if (qla4_8xxx_check_init_adapter_retry(ha) == QLA_ERROR)
8768 goto skip_retry_init;
8769 }
afaf5a2d 8770 }
f4f5df23 8771
7977f825 8772skip_retry_init:
f4f5df23 8773 if (!test_bit(AF_ONLINE, &ha->flags)) {
c2660df3 8774 ql4_printk(KERN_WARNING, ha, "Failed to initialize adapter\n");
afaf5a2d 8775
6e7b4292 8776 if ((is_qla8022(ha) && ql4xdontresethba) ||
b37ca418
VC		 8777 ((is_qla8032(ha) || is_qla8042(ha)) &&
8778 qla4_83xx_idc_dontreset(ha))) {
fe998527
LC		 8779 /* Put the device in failed state. */
8780 DEBUG2(printk(KERN_ERR "HW STATE: FAILED\n"));
33693c7a
VC		 8781 ha->isp_ops->idc_lock(ha);
8782 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
8783 QLA8XXX_DEV_FAILED);
8784 ha->isp_ops->idc_unlock(ha);
fe998527 8785 }
afaf5a2d 8786 ret = -ENODEV;
b3a271a9 8787 goto remove_host;
afaf5a2d
DS		 8788 }
8789
afaf5a2d
DS		 8790 /* Startup the kernel thread for this host adapter. */
8791 DEBUG2(printk("scsi: %s: Starting kernel thread for "
8792 "qla4xxx_dpc\n", __func__));
8793 sprintf(buf, "qla4xxx_%lu_dpc", ha->host_no);
8794 ha->dpc_thread = create_singlethread_workqueue(buf);
8795 if (!ha->dpc_thread) {
c2660df3 8796 ql4_printk(KERN_WARNING, ha, "Unable to start DPC thread!\n");
afaf5a2d 8797 ret = -ENODEV;
b3a271a9 8798 goto remove_host;
afaf5a2d 8799 }
c4028958 8800 INIT_WORK(&ha->dpc_work, qla4xxx_do_dpc);
afaf5a2d 8801
d8537548
KC		 8802 ha->task_wq = alloc_workqueue("qla4xxx_%lu_task", WQ_MEM_RECLAIM, 1,
8803 ha->host_no);
b3a271a9
MR		 8804 if (!ha->task_wq) {
8805 ql4_printk(KERN_WARNING, ha, "Unable to start task thread!\n");
8806 ret = -ENODEV;
8807 goto remove_host;
8808 }
8809
6e7b4292
VC		 8810 /*
8811 * For ISP-8XXX, request_irqs is called in qla4_8xxx_load_risc
f4f5df23
VC		 8812 * (which is called indirectly by qla4xxx_initialize_adapter),
8813 * so that irqs will be registered after crbinit but before
8814 * mbx_intr_enable.
8815 */
ee996a69 8816 if (is_qla40XX(ha)) {
f4f5df23
VC		 8817 ret = qla4xxx_request_irqs(ha);
8818 if (ret) {
8819 ql4_printk(KERN_WARNING, ha, "Failed to reserve "
8820 "interrupt %d already in use.\n", pdev->irq);
b3a271a9 8821 goto remove_host;
f4f5df23 8822 }
afaf5a2d 8823 }
afaf5a2d 8824
2232be0d 8825 pci_save_state(ha->pdev);
f4f5df23 8826 ha->isp_ops->enable_intrs(ha);
afaf5a2d
DS		 8827
8828 /* Start timer thread. */
8829 qla4xxx_start_timer(ha, qla4xxx_timer, 1);
8830
8831 set_bit(AF_INIT_DONE, &ha->flags);
8832
068237c8
TP		 8833 qla4_8xxx_alloc_sysfs_attr(ha);
8834
afaf5a2d
DS		 8835 printk(KERN_INFO
8836 " QLogic iSCSI HBA Driver version: %s\n"
8837 " QLogic ISP%04x @ %s, host#=%ld, fw=%02d.%02d.%02d.%02d\n",
8838 qla4xxx_version_str, ha->pdev->device, pci_name(ha->pdev),
eee06a0f
AC		 8839 ha->host_no, ha->fw_info.fw_major, ha->fw_info.fw_minor,
8840 ha->fw_info.fw_patch, ha->fw_info.fw_build);
ed1086e0 8841
cfb27874
MD		 8842 /* Set the driver version */
8843 if (is_qla80XX(ha))
8844 qla4_8xxx_set_param(ha, SET_DRVR_VERSION);
8845
2a991c21 8846 if (qla4xxx_setup_boot_info(ha))
3573bfb2
VC		 8847 ql4_printk(KERN_ERR, ha,
8848 "%s: No iSCSI boot target configured\n", __func__);
2a991c21 8849
1e9e2be3
AC		 8850 if (qla4xxx_sysfs_ddb_export(ha))
8851 ql4_printk(KERN_ERR, ha,
8852 "%s: Error exporting ddb to sysfs\n", __func__);
8853
13483730
MC		 8854 /* Perform the build ddb list and login to each */
8855 qla4xxx_build_ddb_list(ha, INIT_ADAPTER);
8856 iscsi_host_for_each_session(ha->host, qla4xxx_login_flash_ddb);
1dc8ed5d 8857 qla4xxx_wait_login_resp_boot_tgt(ha);
13483730
MC		 8858
8859 qla4xxx_create_chap_list(ha);
8860
ed1086e0 8861 qla4xxx_create_ifaces(ha);
afaf5a2d
DS		 8862 return 0;
8863
b3a271a9
MR		 8864remove_host:
8865 scsi_remove_host(ha->host);
8866
afaf5a2d
DS		 8867probe_failed:
8868 qla4xxx_free_adapter(ha);
f4f5df23
VC		 8869
8870probe_failed_ioconfig:
2232be0d 8871 pci_disable_pcie_error_reporting(pdev);
afaf5a2d
DS		 8872 scsi_host_put(ha->host);
8873
8874probe_disable_device:
8875 pci_disable_device(pdev);
8876
8877 return ret;
8878}
8879
7eece5a0
KH		 8880/**
8881 * qla4xxx_prevent_other_port_reinit - prevent other port from re-initialize
8882 * @ha: pointer to adapter structure
8883 *
8884 * Mark the other ISP-4xxx port to indicate that the driver is being removed,
8885 * so that the other port will not re-initialize while in the process of
8886 * removing the ha due to driver unload or hba hotplug.
8887 **/
8888static void qla4xxx_prevent_other_port_reinit(struct scsi_qla_host *ha)
8889{
8890 struct scsi_qla_host *other_ha = NULL;
8891 struct pci_dev *other_pdev = NULL;
8892 int fn = ISP4XXX_PCI_FN_2;
8893
8894 /*iscsi function numbers for ISP4xxx is 1 and 3*/
8895 if (PCI_FUNC(ha->pdev->devfn) & BIT_1)
8896 fn = ISP4XXX_PCI_FN_1;
8897
8898 other_pdev =
8899 pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus),
8900 ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
8901 fn));
8902
8903 /* Get other_ha if other_pdev is valid and state is enable*/
8904 if (other_pdev) {
8905 if (atomic_read(&other_pdev->enable_cnt)) {
8906 other_ha = pci_get_drvdata(other_pdev);
8907 if (other_ha) {
8908 set_bit(AF_HA_REMOVAL, &other_ha->flags);
8909 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: "
8910 "Prevent %s reinit\n", __func__,
8911 dev_name(&other_ha->pdev->dev)));
8912 }
8913 }
8914 pci_dev_put(other_pdev);
8915 }
8916}
8917
28d958ba
VC		 8918static void qla4xxx_destroy_ddb(struct scsi_qla_host *ha,
8919 struct ddb_entry *ddb_entry)
8920{
8921 struct dev_db_entry *fw_ddb_entry = NULL;
8922 dma_addr_t fw_ddb_entry_dma;
8923 unsigned long wtime;
8924 uint32_t ddb_state;
8925 int options;
8926 int status;
8927
8928 options = LOGOUT_OPTION_CLOSE_SESSION;
8929 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR) {
8930 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__);
8931 goto clear_ddb;
8932 }
8933
8934 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8935 &fw_ddb_entry_dma, GFP_KERNEL);
8936 if (!fw_ddb_entry) {
8937 ql4_printk(KERN_ERR, ha,
8938 "%s: Unable to allocate dma buffer\n", __func__);
8939 goto clear_ddb;
8940 }
8941
8942 wtime = jiffies + (HZ * LOGOUT_TOV);
8943 do {
8944 status = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
8945 fw_ddb_entry, fw_ddb_entry_dma,
8946 NULL, NULL, &ddb_state, NULL,
8947 NULL, NULL);
8948 if (status == QLA_ERROR)
8949 goto free_ddb;
8950
8951 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) ||
8952 (ddb_state == DDB_DS_SESSION_FAILED))
8953 goto free_ddb;
8954
8955 schedule_timeout_uninterruptible(HZ);
8956 } while ((time_after(wtime, jiffies)));
8957
8958free_ddb:
8959 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8960 fw_ddb_entry, fw_ddb_entry_dma);
8961clear_ddb:
8962 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
8963}
8964
13483730
MC		 8965static void qla4xxx_destroy_fw_ddb_session(struct scsi_qla_host *ha)
8966{
8967 struct ddb_entry *ddb_entry;
13483730
MC		 8968 int idx;
8969
8970 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
8971
8972 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
8973 if ((ddb_entry != NULL) &&
8974 (ddb_entry->ddb_type == FLASH_DDB)) {
8975
28d958ba 8976 qla4xxx_destroy_ddb(ha, ddb_entry);
13483730
MC		 8977 /*
8978 * we have decremented the reference count of the driver
8979 * when we setup the session to have the driver unload
8980 * to be seamless without actually destroying the
8981 * session
8982 **/
8983 try_module_get(qla4xxx_iscsi_transport.owner);
8984 iscsi_destroy_endpoint(ddb_entry->conn->ep);
8985 qla4xxx_free_ddb(ha, ddb_entry);
8986 iscsi_session_teardown(ddb_entry->sess);
8987 }
8988 }
8989}
afaf5a2d 8990/**
59e13d48 8991 * qla4xxx_remove_adapter - callback function to remove adapter.
afaf5a2d
DS		 8992 * @pci_dev: PCI device pointer
8993 **/
6f039790 8994static void qla4xxx_remove_adapter(struct pci_dev *pdev)
afaf5a2d
DS		 8995{
8996 struct scsi_qla_host *ha;
8997
f8b0751d
VC		 8998 /*
8999 * If the PCI device is disabled then it means probe_adapter had
9000 * failed and resources already cleaned up on probe_adapter exit.
9001 */
9002 if (!pci_is_enabled(pdev))
9003 return;
9004
afaf5a2d
DS		 9005 ha = pci_get_drvdata(pdev);
9006
ee996a69 9007 if (is_qla40XX(ha))
7eece5a0 9008 qla4xxx_prevent_other_port_reinit(ha);
bee4fe8e 9009
ed1086e0
VC		 9010 /* destroy iface from sysfs */
9011 qla4xxx_destroy_ifaces(ha);
9012
13483730 9013 if ((!ql4xdisablesysfsboot) && ha->boot_kset)
2a991c21
MR		 9014 iscsi_boot_destroy_kset(ha->boot_kset);
9015
13483730 9016 qla4xxx_destroy_fw_ddb_session(ha);
068237c8 9017 qla4_8xxx_free_sysfs_attr(ha);
13483730 9018
1e9e2be3 9019 qla4xxx_sysfs_ddb_remove(ha);
afaf5a2d
DS		 9020 scsi_remove_host(ha->host);
9021
9022 qla4xxx_free_adapter(ha);
9023
9024 scsi_host_put(ha->host);
9025
2232be0d 9026 pci_disable_pcie_error_reporting(pdev);
f4f5df23 9027 pci_disable_device(pdev);
afaf5a2d
DS		 9028}
9029
9030/**
9031 * qla4xxx_config_dma_addressing() - Configure OS DMA addressing method.
9032 * @ha: HA context
9033 *
9034 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
9035 * supported addressing method.
9036 */
47975477 9037static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha)
afaf5a2d
DS		 9038{
9039 int retval;
9040
9041 /* Update our PCI device dma_mask for full 64 bit mask */
6a35528a
YH		 9042 if (pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(64)) == 0) {
9043 if (pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) {
afaf5a2d
DS		 9044 dev_dbg(&ha->pdev->dev,
9045 "Failed to set 64 bit PCI consistent mask; "
9046 "using 32 bit.\n");
9047 retval = pci_set_consistent_dma_mask(ha->pdev,
284901a9 9048 DMA_BIT_MASK(32));
afaf5a2d
DS		 9049 }
9050 } else
284901a9 9051 retval = pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(32));
afaf5a2d
DS		 9052}
9053
9054static int qla4xxx_slave_alloc(struct scsi_device *sdev)
9055{
b3a271a9
MR		 9056 struct iscsi_cls_session *cls_sess;
9057 struct iscsi_session *sess;
9058 struct ddb_entry *ddb;
8bb4033d 9059 int queue_depth = QL4_DEF_QDEPTH;
afaf5a2d 9060
b3a271a9
MR		 9061 cls_sess = starget_to_session(sdev->sdev_target);
9062 sess = cls_sess->dd_data;
9063 ddb = sess->dd_data;
9064
afaf5a2d
DS		 9065 sdev->hostdata = ddb;
9066 sdev->tagged_supported = 1;
8bb4033d
VC		 9067
9068 if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU)
9069 queue_depth = ql4xmaxqdepth;
9070
9071 scsi_activate_tcq(sdev, queue_depth);
afaf5a2d
DS		 9072 return 0;
9073}
9074
9075static int qla4xxx_slave_configure(struct scsi_device *sdev)
9076{
9077 sdev->tagged_supported = 1;
9078 return 0;
9079}
9080
9081static void qla4xxx_slave_destroy(struct scsi_device *sdev)
9082{
9083 scsi_deactivate_tcq(sdev, 1);
9084}
9085
f7b4aa63
TP		 9086static int qla4xxx_change_queue_depth(struct scsi_device *sdev, int qdepth,
9087 int reason)
9088{
9089 if (!ql4xqfulltracking)
9090 return -EOPNOTSUPP;
9091
9092 return iscsi_change_queue_depth(sdev, qdepth, reason);
9093}
9094
afaf5a2d
DS		 9095/**
9096 * qla4xxx_del_from_active_array - returns an active srb
9097 * @ha: Pointer to host adapter structure.
fd589a8f 9098 * @index: index into the active_array
afaf5a2d
DS		 9099 *
9100 * This routine removes and returns the srb at the specified index
9101 **/
f4f5df23
VC		 9102struct srb *qla4xxx_del_from_active_array(struct scsi_qla_host *ha,
9103 uint32_t index)
afaf5a2d
DS		 9104{
9105 struct srb *srb = NULL;
5369887a 9106 struct scsi_cmnd *cmd = NULL;
afaf5a2d 9107
5369887a
VC		 9108 cmd = scsi_host_find_tag(ha->host, index);
9109 if (!cmd)
afaf5a2d
DS		 9110 return srb;
9111
5369887a
VC		 9112 srb = (struct srb *)CMD_SP(cmd);
9113 if (!srb)
afaf5a2d
DS		 9114 return srb;
9115
9116 /* update counters */
9117 if (srb->flags & SRB_DMA_VALID) {
afaf5a2d
DS		 9118 ha->iocb_cnt -= srb->iocb_cnt;
9119 if (srb->cmd)
5369887a
VC		 9120 srb->cmd->host_scribble =
9121 (unsigned char *)(unsigned long) MAX_SRBS;
afaf5a2d
DS		 9122 }
9123 return srb;
9124}
9125
afaf5a2d
DS		 9126/**
9127 * qla4xxx_eh_wait_on_command - waits for command to be returned by firmware
09a0f719 9128 * @ha: Pointer to host adapter structure.
afaf5a2d
DS		 9129 * @cmd: Scsi Command to wait on.
9130 *
9131 * This routine waits for the command to be returned by the Firmware
9132 * for some max time.
9133 **/
9134static int qla4xxx_eh_wait_on_command(struct scsi_qla_host *ha,
9135 struct scsi_cmnd *cmd)
9136{
9137 int done = 0;
9138 struct srb *rp;
9139 uint32_t max_wait_time = EH_WAIT_CMD_TOV;
2232be0d
LC		 9140 int ret = SUCCESS;
9141
9142 /* Dont wait on command if PCI error is being handled
9143 * by PCI AER driver
9144 */
9145 if (unlikely(pci_channel_offline(ha->pdev)) ||
9146 (test_bit(AF_EEH_BUSY, &ha->flags))) {
9147 ql4_printk(KERN_WARNING, ha, "scsi%ld: Return from %s\n",
9148 ha->host_no, __func__);
9149 return ret;
9150 }
afaf5a2d
DS		 9151
9152 do {
9153 /* Checking to see if its returned to OS */
5369887a 9154 rp = (struct srb *) CMD_SP(cmd);
afaf5a2d
DS		 9155 if (rp == NULL) {
9156 done++;
9157 break;
9158 }
9159
9160 msleep(2000);
9161 } while (max_wait_time--);
9162
9163 return done;
9164}
9165
9166/**
9167 * qla4xxx_wait_for_hba_online - waits for HBA to come online
9168 * @ha: Pointer to host adapter structure
9169 **/
9170static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha)
9171{
9172 unsigned long wait_online;
9173
f581a3f7 9174 wait_online = jiffies + (HBA_ONLINE_TOV * HZ);
afaf5a2d
DS		 9175 while (time_before(jiffies, wait_online)) {
9176
9177 if (adapter_up(ha))
9178 return QLA_SUCCESS;
afaf5a2d
DS		 9179
9180 msleep(2000);
9181 }
9182
9183 return QLA_ERROR;
9184}
9185
9186/**
ce545039 9187 * qla4xxx_eh_wait_for_commands - wait for active cmds to finish.
fd589a8f 9188 * @ha: pointer to HBA
afaf5a2d
DS		 9189 * @t: target id
9190 * @l: lun id
9191 *
9192 * This function waits for all outstanding commands to a lun to complete. It
9193 * returns 0 if all pending commands are returned and 1 otherwise.
9194 **/
ce545039
MC		 9195static int qla4xxx_eh_wait_for_commands(struct scsi_qla_host *ha,
9196 struct scsi_target *stgt,
9197 struct scsi_device *sdev)
afaf5a2d
DS		 9198{
9199 int cnt;
9200 int status = 0;
9201 struct scsi_cmnd *cmd;
9202
9203 /*
ce545039
MC		 9204 * Waiting for all commands for the designated target or dev
9205 * in the active array
afaf5a2d
DS		 9206 */
9207 for (cnt = 0; cnt < ha->host->can_queue; cnt++) {
9208 cmd = scsi_host_find_tag(ha->host, cnt);
ce545039
MC		 9209 if (cmd && stgt == scsi_target(cmd->device) &&
9210 (!sdev || sdev == cmd->device)) {
afaf5a2d
DS		 9211 if (!qla4xxx_eh_wait_on_command(ha, cmd)) {
9212 status++;
9213 break;
9214 }
9215 }
9216 }
9217 return status;
9218}
9219
09a0f719
VC		 9220/**
9221 * qla4xxx_eh_abort - callback for abort task.
9222 * @cmd: Pointer to Linux's SCSI command structure
9223 *
9224 * This routine is called by the Linux OS to abort the specified
9225 * command.
9226 **/
9227static int qla4xxx_eh_abort(struct scsi_cmnd *cmd)
9228{
9229 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
9230 unsigned int id = cmd->device->id;
9231 unsigned int lun = cmd->device->lun;
92b3e5bb 9232 unsigned long flags;
09a0f719
VC		 9233 struct srb *srb = NULL;
9234 int ret = SUCCESS;
9235 int wait = 0;
9236
63c9e814
VC		 9237 ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%d: Abort command issued cmd=%p, cdb=0x%x\n",
9238 ha->host_no, id, lun, cmd, cmd->cmnd[0]);
09a0f719 9239
92b3e5bb 9240 spin_lock_irqsave(&ha->hardware_lock, flags);
09a0f719 9241 srb = (struct srb *) CMD_SP(cmd);
92b3e5bb
MC		 9242 if (!srb) {
9243 spin_unlock_irqrestore(&ha->hardware_lock, flags);
63c9e814
VC		 9244 ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%d: Specified command has already completed.\n",
9245 ha->host_no, id, lun);
09a0f719 9246 return SUCCESS;
92b3e5bb 9247 }
09a0f719 9248 kref_get(&srb->srb_ref);
92b3e5bb 9249 spin_unlock_irqrestore(&ha->hardware_lock, flags);
09a0f719
VC		 9250
9251 if (qla4xxx_abort_task(ha, srb) != QLA_SUCCESS) {
9252 DEBUG3(printk("scsi%ld:%d:%d: Abort_task mbx failed.\n",
9253 ha->host_no, id, lun));
9254 ret = FAILED;
9255 } else {
9256 DEBUG3(printk("scsi%ld:%d:%d: Abort_task mbx success.\n",
9257 ha->host_no, id, lun));
9258 wait = 1;
9259 }
9260
9261 kref_put(&srb->srb_ref, qla4xxx_srb_compl);
9262
9263 /* Wait for command to complete */
9264 if (wait) {
9265 if (!qla4xxx_eh_wait_on_command(ha, cmd)) {
9266 DEBUG2(printk("scsi%ld:%d:%d: Abort handler timed out\n",
9267 ha->host_no, id, lun));
9268 ret = FAILED;
9269 }
9270 }
9271
c2660df3 9272 ql4_printk(KERN_INFO, ha,
09a0f719 9273 "scsi%ld:%d:%d: Abort command - %s\n",
25985edc 9274 ha->host_no, id, lun, (ret == SUCCESS) ? "succeeded" : "failed");
09a0f719
VC		 9275
9276 return ret;
9277}
9278
afaf5a2d
DS		 9279/**
9280 * qla4xxx_eh_device_reset - callback for target reset.
9281 * @cmd: Pointer to Linux's SCSI command structure
9282 *
9283 * This routine is called by the Linux OS to reset all luns on the
9284 * specified target.
9285 **/
9286static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd)
9287{
9288 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
9289 struct ddb_entry *ddb_entry = cmd->device->hostdata;
afaf5a2d
DS		 9290 int ret = FAILED, stat;
9291
612f7348 9292 if (!ddb_entry)
afaf5a2d
DS		 9293 return ret;
9294
c01be6dc
MC		 9295 ret = iscsi_block_scsi_eh(cmd);
9296 if (ret)
9297 return ret;
9298 ret = FAILED;
9299
c2660df3 9300 ql4_printk(KERN_INFO, ha,
afaf5a2d
DS		 9301 "scsi%ld:%d:%d:%d: DEVICE RESET ISSUED.\n", ha->host_no,
9302 cmd->device->channel, cmd->device->id, cmd->device->lun);
9303
9304 DEBUG2(printk(KERN_INFO
9305 "scsi%ld: DEVICE_RESET cmd=%p jiffies = 0x%lx, to=%x,"
9306 "dpc_flags=%lx, status=%x allowed=%d\n", ha->host_no,
242f9dcb 9307 cmd, jiffies, cmd->request->timeout / HZ,
afaf5a2d
DS		 9308 ha->dpc_flags, cmd->result, cmd->allowed));
9309
9310 /* FIXME: wait for hba to go online */
9311 stat = qla4xxx_reset_lun(ha, ddb_entry, cmd->device->lun);
9312 if (stat != QLA_SUCCESS) {
c2660df3 9313 ql4_printk(KERN_INFO, ha, "DEVICE RESET FAILED. %d\n", stat);
afaf5a2d
DS		 9314 goto eh_dev_reset_done;
9315 }
9316
ce545039
MC		 9317 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device),
9318 cmd->device)) {
c2660df3 9319 ql4_printk(KERN_INFO, ha,
ce545039
MC		 9320 "DEVICE RESET FAILED - waiting for "
9321 "commands.\n");
9322 goto eh_dev_reset_done;
afaf5a2d
DS		 9323 }
9324
9d562913
DS		 9325 /* Send marker. */
9326 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun,
9327 MM_LUN_RESET) != QLA_SUCCESS)
9328 goto eh_dev_reset_done;
9329
c2660df3 9330 ql4_printk(KERN_INFO, ha,
afaf5a2d
DS		 9331 "scsi(%ld:%d:%d:%d): DEVICE RESET SUCCEEDED.\n",
9332 ha->host_no, cmd->device->channel, cmd->device->id,
9333 cmd->device->lun);
9334
9335 ret = SUCCESS;
9336
9337eh_dev_reset_done:
9338
9339 return ret;
9340}
9341
ce545039
MC		 9342/**
9343 * qla4xxx_eh_target_reset - callback for target reset.
9344 * @cmd: Pointer to Linux's SCSI command structure
9345 *
9346 * This routine is called by the Linux OS to reset the target.
9347 **/
9348static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd)
9349{
9350 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
9351 struct ddb_entry *ddb_entry = cmd->device->hostdata;
c01be6dc 9352 int stat, ret;
ce545039
MC		 9353
9354 if (!ddb_entry)
9355 return FAILED;
9356
c01be6dc
MC		 9357 ret = iscsi_block_scsi_eh(cmd);
9358 if (ret)
9359 return ret;
9360
ce545039
MC		 9361 starget_printk(KERN_INFO, scsi_target(cmd->device),
9362 "WARM TARGET RESET ISSUED.\n");
9363
9364 DEBUG2(printk(KERN_INFO
9365 "scsi%ld: TARGET_DEVICE_RESET cmd=%p jiffies = 0x%lx, "
9366 "to=%x,dpc_flags=%lx, status=%x allowed=%d\n",
242f9dcb 9367 ha->host_no, cmd, jiffies, cmd->request->timeout / HZ,
ce545039
MC		 9368 ha->dpc_flags, cmd->result, cmd->allowed));
9369
9370 stat = qla4xxx_reset_target(ha, ddb_entry);
9371 if (stat != QLA_SUCCESS) {
9372 starget_printk(KERN_INFO, scsi_target(cmd->device),
9373 "WARM TARGET RESET FAILED.\n");
9374 return FAILED;
9375 }
9376
ce545039
MC		 9377 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device),
9378 NULL)) {
9379 starget_printk(KERN_INFO, scsi_target(cmd->device),
9380 "WARM TARGET DEVICE RESET FAILED - "
9381 "waiting for commands.\n");
9382 return FAILED;
9383 }
9384
9d562913
DS		 9385 /* Send marker. */
9386 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun,
9387 MM_TGT_WARM_RESET) != QLA_SUCCESS) {
9388 starget_printk(KERN_INFO, scsi_target(cmd->device),
9389 "WARM TARGET DEVICE RESET FAILED - "
9390 "marker iocb failed.\n");
9391 return FAILED;
9392 }
9393
ce545039
MC		 9394 starget_printk(KERN_INFO, scsi_target(cmd->device),
9395 "WARM TARGET RESET SUCCEEDED.\n");
9396 return SUCCESS;
9397}
9398
8a288960
SR		 9399/**
9400 * qla4xxx_is_eh_active - check if error handler is running
9401 * @shost: Pointer to SCSI Host struct
9402 *
9403 * This routine finds that if reset host is called in EH
9404 * scenario or from some application like sg_reset
9405 **/
9406static int qla4xxx_is_eh_active(struct Scsi_Host *shost)
9407{
9408 if (shost->shost_state == SHOST_RECOVERY)
9409 return 1;
9410 return 0;
9411}
9412
afaf5a2d
DS		 9413/**
9414 * qla4xxx_eh_host_reset - kernel callback
9415 * @cmd: Pointer to Linux's SCSI command structure
9416 *
9417 * This routine is invoked by the Linux kernel to perform fatal error
9418 * recovery on the specified adapter.
9419 **/
9420static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd)
9421{
9422 int return_status = FAILED;
9423 struct scsi_qla_host *ha;
9424
b3a271a9 9425 ha = to_qla_host(cmd->device->host);
afaf5a2d 9426
b37ca418 9427 if ((is_qla8032(ha) || is_qla8042(ha)) && ql4xdontresethba)
6e7b4292
VC		 9428 qla4_83xx_set_idc_dontreset(ha);
9429
9430 /*
b37ca418
VC		 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
6e7b4292
VC		 9433 */
9434 if (ql4xdontresethba ||
b37ca418
VC		 9435 ((is_qla8032(ha) || is_qla8042(ha)) &&
9436 qla4_83xx_idc_dontreset(ha))) {
f4f5df23
VC		 9437 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n",
9438 ha->host_no, __func__));
8a288960
SR		 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
f4f5df23
VC		 9444 return FAILED;
9445 }
9446
c2660df3 9447 ql4_printk(KERN_INFO, ha,
dca05c4c 9448 "scsi(%ld:%d:%d:%d): HOST RESET ISSUED.\n", ha->host_no,
afaf5a2d
DS		 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
f4f5df23 9459 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
6e7b4292 9460 if (is_qla80XX(ha))
f4f5df23
VC		 9461 set_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
9462 else
9463 set_bit(DPC_RESET_HA, &ha->dpc_flags);
9464 }
50a29aec 9465
f4f5df23 9466 if (qla4xxx_recover_adapter(ha) == QLA_SUCCESS)
afaf5a2d 9467 return_status = SUCCESS;
afaf5a2d 9468
c2660df3 9469 ql4_printk(KERN_INFO, ha, "HOST RESET %s.\n",
25985edc 9470 return_status == FAILED ? "FAILED" : "SUCCEEDED");
afaf5a2d
DS		 9471
9472 return return_status;
9473}
9474
95d31262
VC		 9475static 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
9517exit_free_acb:
9518 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk_def),
9519 acb, acb_dma);
9520exit_port_reset:
9521 DEBUG2(ql4_printk(KERN_INFO, ha, "%s %s\n", __func__,
9522 rval == QLA_SUCCESS ? "SUCCEEDED" : "FAILED"));
9523 return rval;
9524}
9525
9526static 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;
ebd777de 9530 uint32_t idc_ctrl;
95d31262
VC		 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
95d31262
VC		 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)) {
6e7b4292 9548 if (is_qla80XX(ha))
95d31262
VC		 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
9560recover_adapter:
b37ca418 9561 /* For ISP8324 and ISP8042 set graceful reset bit in IDC_DRV_CTRL if
ebd777de 9562 * reset is issued by application */
b37ca418
VC		 9563 if ((is_qla8032(ha) || is_qla8042(ha)) &&
9564 test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
ebd777de
VC		 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
95d31262
VC		 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
9577exit_host_reset:
9578 return rval;
9579}
9580
2232be0d
LC		 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 pci_error_detected() which
9587 * returns CAN_RECOVER, NEED_RESET or DISCONNECT.
9588 *
9589 * PCI AER driver calls
9590 * CAN_RECOVER - driver's pci_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 pci_resume()
9595 */
9596static pci_ers_result_t
9597qla4xxx_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);
7b3595df
VC		 9616 /* Return back all IOs */
9617 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
2232be0d
LC		 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 **/
9633static pci_ers_result_t
9634qla4xxx_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
7b3595df 9641 return PCI_ERS_RESULT_RECOVERED;
2232be0d
LC		 9642}
9643
7b3595df 9644static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha)
2232be0d
LC		 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);
b3a271a9
MR		 9656 clear_bit(AF_LINK_UP, &ha->flags);
9657 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session);
2232be0d 9658 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
2232be0d
LC		 9659 }
9660
9661 fn = PCI_FUNC(ha->pdev->devfn);
daa34eb4
TP		 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;
2232be0d 9677
daa34eb4
TP		 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 }
2232be0d 9684 pci_dev_put(other_pdev);
2232be0d 9685 }
daa34eb4
TP		 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 }
2232be0d
LC		 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
33693c7a
VC		 9703 ha->isp_ops->idc_lock(ha);
9704 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9705 QLA8XXX_DEV_COLD);
33693c7a 9706 ha->isp_ops->idc_unlock(ha);
39c95826
VC		 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 }
2232be0d 9718
2232be0d 9719 clear_bit(AF_FW_RECOVERY, &ha->flags);
13483730 9720 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
2232be0d
LC		 9721
9722 if (rval != QLA_SUCCESS) {
9723 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: "
9724 "FAILED\n", ha->host_no, __func__);
37418cc6 9725 qla4xxx_free_irqs(ha);
82761907 9726 ha->isp_ops->idc_lock(ha);
2232be0d 9727 qla4_8xxx_clear_drv_active(ha);
33693c7a
VC		 9728 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9729 QLA8XXX_DEV_FAILED);
82761907 9730 ha->isp_ops->idc_unlock(ha);
2232be0d
LC		 9731 } else {
9732 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: "
9733 "READY\n", ha->host_no, __func__);
82761907 9734 ha->isp_ops->idc_lock(ha);
33693c7a
VC		 9735 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9736 QLA8XXX_DEV_READY);
2232be0d 9737 /* Clear driver state register */
33693c7a 9738 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_STATE, 0);
2232be0d 9739 qla4_8xxx_set_drv_active(ha);
82761907 9740 ha->isp_ops->idc_unlock(ha);
137257da 9741 ha->isp_ops->enable_intrs(ha);
2232be0d 9742 }
2232be0d
LC		 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);
33693c7a
VC		 9747 if ((qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE) ==
9748 QLA8XXX_DEV_READY)) {
2232be0d 9749 clear_bit(AF_FW_RECOVERY, &ha->flags);
13483730 9750 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
137257da
PV		 9751 if (rval == QLA_SUCCESS)
9752 ha->isp_ops->enable_intrs(ha);
37418cc6
NJ		 9753 else
9754 qla4xxx_free_irqs(ha);
137257da 9755
33693c7a 9756 ha->isp_ops->idc_lock(ha);
2232be0d 9757 qla4_8xxx_set_drv_active(ha);
33693c7a 9758 ha->isp_ops->idc_unlock(ha);
2232be0d
LC		 9759 }
9760 }
39c95826 9761exit_error_recovery:
2232be0d
LC		 9762 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
9763 return rval;
9764}
9765
9766static pci_ers_result_t
9767qla4xxx_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) {
25985edc 9793 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Can't re-enable "
2232be0d
LC		 9794 "device after reset\n", ha->host_no, __func__);
9795 goto exit_slot_reset;
9796 }
9797
7b3595df 9798 ha->isp_ops->disable_intrs(ha);
2232be0d 9799
6e7b4292 9800 if (is_qla80XX(ha)) {
2232be0d
LC		 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
9808exit_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
9814static void
9815qla4xxx_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
a55b2d21 9834static const struct pci_error_handlers qla4xxx_err_handler = {
2232be0d
LC		 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
afaf5a2d
DS		 9841static 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 },
d915058f
DS		 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 },
f4f5df23
VC		 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 },
6e7b4292
VC		 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 },
b37ca418
VC		 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 },
afaf5a2d
DS		 9878 {0, 0},
9879};
9880MODULE_DEVICE_TABLE(pci, qla4xxx_pci_tbl);
9881
47975477 9882static struct pci_driver qla4xxx_pci_driver = {
afaf5a2d
DS		 9883 .name = DRIVER_NAME,
9884 .id_table = qla4xxx_pci_tbl,
9885 .probe = qla4xxx_probe_adapter,
9886 .remove = qla4xxx_remove_adapter,
2232be0d 9887 .err_handler = &qla4xxx_err_handler,
afaf5a2d
DS		 9888};
9889
9890static int __init qla4xxx_module_init(void)
9891{
9892 int ret;
9893
9894 /* Allocate cache for SRBs. */
9895 srb_cachep = kmem_cache_create("qla4xxx_srbs", sizeof(struct srb), 0,
20c2df83 9896 SLAB_HWCACHE_ALIGN, NULL);
afaf5a2d
DS		 9897 if (srb_cachep == NULL) {
9898 printk(KERN_ERR
9899 "%s: Unable to allocate SRB cache..."
9900 "Failing load!\n", DRIVER_NAME);
9901 ret = -ENOMEM;
9902 goto no_srp_cache;
9903 }
9904
9905 /* Derive version string. */
9906 strcpy(qla4xxx_version_str, QLA4XXX_DRIVER_VERSION);
11010fec 9907 if (ql4xextended_error_logging)
afaf5a2d
DS		 9908 strcat(qla4xxx_version_str, "-debug");
9909
9910 qla4xxx_scsi_transport =
9911 iscsi_register_transport(&qla4xxx_iscsi_transport);
9912 if (!qla4xxx_scsi_transport){
9913 ret = -ENODEV;
9914 goto release_srb_cache;
9915 }
9916
afaf5a2d
DS		 9917 ret = pci_register_driver(&qla4xxx_pci_driver);
9918 if (ret)
9919 goto unregister_transport;
9920
9921 printk(KERN_INFO "QLogic iSCSI HBA Driver\n");
9922 return 0;
5ae16db3 9923
afaf5a2d
DS		 9924unregister_transport:
9925 iscsi_unregister_transport(&qla4xxx_iscsi_transport);
9926release_srb_cache:
9927 kmem_cache_destroy(srb_cachep);
9928no_srp_cache:
9929 return ret;
9930}
9931
9932static void __exit qla4xxx_module_exit(void)
9933{
9934 pci_unregister_driver(&qla4xxx_pci_driver);
9935 iscsi_unregister_transport(&qla4xxx_iscsi_transport);
9936 kmem_cache_destroy(srb_cachep);
9937}
9938
9939module_init(qla4xxx_module_init);
9940module_exit(qla4xxx_module_exit);
9941
9942MODULE_AUTHOR("QLogic Corporation");
9943MODULE_DESCRIPTION("QLogic iSCSI HBA Driver");
9944MODULE_LICENSE("GPL");
9945MODULE_VERSION(QLA4XXX_DRIVER_VERSION);
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