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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
[linux-2.6-block.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
a511b4af 86int ql4xmdcapmask = 0;
068237c8
TP		 87module_param(ql4xmdcapmask, int, S_IRUGO);
88MODULE_PARM_DESC(ql4xmdcapmask,
89 " Set the Minidump driver capture mask level.\n"
a511b4af 90 "\t\t Default is 0 (firmware default capture mask)\n"
b410982c 91 "\t\t Can be set to 0x3, 0x7, 0xF, 0x1F, 0x3F, 0x7F, 0xFF");
068237c8
TP		 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;
bdbb9662 759 strlcpy(chap_rec->username, chap_table->name,
376738af 760 ISCSI_CHAP_AUTH_NAME_MAX_LEN);
bdbb9662 761 strlcpy(chap_rec->password, chap_table->secret,
376738af
NJ		 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");
7f3976f0 1053 ret = -ENOMEM;
4161cee5
LC		 1054 goto exit_host_stats;
1055 }
1056
1057 ret = qla4xxx_get_mgmt_data(ha, ddb_idx, stats_size,
1058 iscsi_stats_dma);
1059 if (ret != QLA_SUCCESS) {
1060 ql4_printk(KERN_ERR, ha,
1061 "Unable to retrieve iscsi stats\n");
7f3976f0 1062 ret = -EIO;
4161cee5
LC		 1063 goto exit_host_stats;
1064 }
1065 host_stats->mactx_frames = le64_to_cpu(ql_iscsi_stats->mac_tx_frames);
1066 host_stats->mactx_bytes = le64_to_cpu(ql_iscsi_stats->mac_tx_bytes);
1067 host_stats->mactx_multicast_frames =
1068 le64_to_cpu(ql_iscsi_stats->mac_tx_multicast_frames);
1069 host_stats->mactx_broadcast_frames =
1070 le64_to_cpu(ql_iscsi_stats->mac_tx_broadcast_frames);
1071 host_stats->mactx_pause_frames =
1072 le64_to_cpu(ql_iscsi_stats->mac_tx_pause_frames);
1073 host_stats->mactx_control_frames =
1074 le64_to_cpu(ql_iscsi_stats->mac_tx_control_frames);
1075 host_stats->mactx_deferral =
1076 le64_to_cpu(ql_iscsi_stats->mac_tx_deferral);
1077 host_stats->mactx_excess_deferral =
1078 le64_to_cpu(ql_iscsi_stats->mac_tx_excess_deferral);
1079 host_stats->mactx_late_collision =
1080 le64_to_cpu(ql_iscsi_stats->mac_tx_late_collision);
1081 host_stats->mactx_abort = le64_to_cpu(ql_iscsi_stats->mac_tx_abort);
1082 host_stats->mactx_single_collision =
1083 le64_to_cpu(ql_iscsi_stats->mac_tx_single_collision);
1084 host_stats->mactx_multiple_collision =
1085 le64_to_cpu(ql_iscsi_stats->mac_tx_multiple_collision);
1086 host_stats->mactx_collision =
1087 le64_to_cpu(ql_iscsi_stats->mac_tx_collision);
1088 host_stats->mactx_frames_dropped =
1089 le64_to_cpu(ql_iscsi_stats->mac_tx_frames_dropped);
1090 host_stats->mactx_jumbo_frames =
1091 le64_to_cpu(ql_iscsi_stats->mac_tx_jumbo_frames);
1092 host_stats->macrx_frames = le64_to_cpu(ql_iscsi_stats->mac_rx_frames);
1093 host_stats->macrx_bytes = le64_to_cpu(ql_iscsi_stats->mac_rx_bytes);
1094 host_stats->macrx_unknown_control_frames =
1095 le64_to_cpu(ql_iscsi_stats->mac_rx_unknown_control_frames);
1096 host_stats->macrx_pause_frames =
1097 le64_to_cpu(ql_iscsi_stats->mac_rx_pause_frames);
1098 host_stats->macrx_control_frames =
1099 le64_to_cpu(ql_iscsi_stats->mac_rx_control_frames);
1100 host_stats->macrx_dribble =
1101 le64_to_cpu(ql_iscsi_stats->mac_rx_dribble);
1102 host_stats->macrx_frame_length_error =
1103 le64_to_cpu(ql_iscsi_stats->mac_rx_frame_length_error);
1104 host_stats->macrx_jabber = le64_to_cpu(ql_iscsi_stats->mac_rx_jabber);
1105 host_stats->macrx_carrier_sense_error =
1106 le64_to_cpu(ql_iscsi_stats->mac_rx_carrier_sense_error);
1107 host_stats->macrx_frame_discarded =
1108 le64_to_cpu(ql_iscsi_stats->mac_rx_frame_discarded);
1109 host_stats->macrx_frames_dropped =
1110 le64_to_cpu(ql_iscsi_stats->mac_rx_frames_dropped);
1111 host_stats->mac_crc_error = le64_to_cpu(ql_iscsi_stats->mac_crc_error);
1112 host_stats->mac_encoding_error =
1113 le64_to_cpu(ql_iscsi_stats->mac_encoding_error);
1114 host_stats->macrx_length_error_large =
1115 le64_to_cpu(ql_iscsi_stats->mac_rx_length_error_large);
1116 host_stats->macrx_length_error_small =
1117 le64_to_cpu(ql_iscsi_stats->mac_rx_length_error_small);
1118 host_stats->macrx_multicast_frames =
1119 le64_to_cpu(ql_iscsi_stats->mac_rx_multicast_frames);
1120 host_stats->macrx_broadcast_frames =
1121 le64_to_cpu(ql_iscsi_stats->mac_rx_broadcast_frames);
1122 host_stats->iptx_packets = le64_to_cpu(ql_iscsi_stats->ip_tx_packets);
1123 host_stats->iptx_bytes = le64_to_cpu(ql_iscsi_stats->ip_tx_bytes);
1124 host_stats->iptx_fragments =
1125 le64_to_cpu(ql_iscsi_stats->ip_tx_fragments);
1126 host_stats->iprx_packets = le64_to_cpu(ql_iscsi_stats->ip_rx_packets);
1127 host_stats->iprx_bytes = le64_to_cpu(ql_iscsi_stats->ip_rx_bytes);
1128 host_stats->iprx_fragments =
1129 le64_to_cpu(ql_iscsi_stats->ip_rx_fragments);
1130 host_stats->ip_datagram_reassembly =
1131 le64_to_cpu(ql_iscsi_stats->ip_datagram_reassembly);
1132 host_stats->ip_invalid_address_error =
1133 le64_to_cpu(ql_iscsi_stats->ip_invalid_address_error);
1134 host_stats->ip_error_packets =
1135 le64_to_cpu(ql_iscsi_stats->ip_error_packets);
1136 host_stats->ip_fragrx_overlap =
1137 le64_to_cpu(ql_iscsi_stats->ip_fragrx_overlap);
1138 host_stats->ip_fragrx_outoforder =
1139 le64_to_cpu(ql_iscsi_stats->ip_fragrx_outoforder);
1140 host_stats->ip_datagram_reassembly_timeout =
1141 le64_to_cpu(ql_iscsi_stats->ip_datagram_reassembly_timeout);
1142 host_stats->ipv6tx_packets =
1143 le64_to_cpu(ql_iscsi_stats->ipv6_tx_packets);
1144 host_stats->ipv6tx_bytes = le64_to_cpu(ql_iscsi_stats->ipv6_tx_bytes);
1145 host_stats->ipv6tx_fragments =
1146 le64_to_cpu(ql_iscsi_stats->ipv6_tx_fragments);
1147 host_stats->ipv6rx_packets =
1148 le64_to_cpu(ql_iscsi_stats->ipv6_rx_packets);
1149 host_stats->ipv6rx_bytes = le64_to_cpu(ql_iscsi_stats->ipv6_rx_bytes);
1150 host_stats->ipv6rx_fragments =
1151 le64_to_cpu(ql_iscsi_stats->ipv6_rx_fragments);
1152 host_stats->ipv6_datagram_reassembly =
1153 le64_to_cpu(ql_iscsi_stats->ipv6_datagram_reassembly);
1154 host_stats->ipv6_invalid_address_error =
1155 le64_to_cpu(ql_iscsi_stats->ipv6_invalid_address_error);
1156 host_stats->ipv6_error_packets =
1157 le64_to_cpu(ql_iscsi_stats->ipv6_error_packets);
1158 host_stats->ipv6_fragrx_overlap =
1159 le64_to_cpu(ql_iscsi_stats->ipv6_fragrx_overlap);
1160 host_stats->ipv6_fragrx_outoforder =
1161 le64_to_cpu(ql_iscsi_stats->ipv6_fragrx_outoforder);
1162 host_stats->ipv6_datagram_reassembly_timeout =
1163 le64_to_cpu(ql_iscsi_stats->ipv6_datagram_reassembly_timeout);
1164 host_stats->tcptx_segments =
1165 le64_to_cpu(ql_iscsi_stats->tcp_tx_segments);
1166 host_stats->tcptx_bytes = le64_to_cpu(ql_iscsi_stats->tcp_tx_bytes);
1167 host_stats->tcprx_segments =
1168 le64_to_cpu(ql_iscsi_stats->tcp_rx_segments);
1169 host_stats->tcprx_byte = le64_to_cpu(ql_iscsi_stats->tcp_rx_byte);
1170 host_stats->tcp_duplicate_ack_retx =
1171 le64_to_cpu(ql_iscsi_stats->tcp_duplicate_ack_retx);
1172 host_stats->tcp_retx_timer_expired =
1173 le64_to_cpu(ql_iscsi_stats->tcp_retx_timer_expired);
1174 host_stats->tcprx_duplicate_ack =
1175 le64_to_cpu(ql_iscsi_stats->tcp_rx_duplicate_ack);
1176 host_stats->tcprx_pure_ackr =
1177 le64_to_cpu(ql_iscsi_stats->tcp_rx_pure_ackr);
1178 host_stats->tcptx_delayed_ack =
1179 le64_to_cpu(ql_iscsi_stats->tcp_tx_delayed_ack);
1180 host_stats->tcptx_pure_ack =
1181 le64_to_cpu(ql_iscsi_stats->tcp_tx_pure_ack);
1182 host_stats->tcprx_segment_error =
1183 le64_to_cpu(ql_iscsi_stats->tcp_rx_segment_error);
1184 host_stats->tcprx_segment_outoforder =
1185 le64_to_cpu(ql_iscsi_stats->tcp_rx_segment_outoforder);
1186 host_stats->tcprx_window_probe =
1187 le64_to_cpu(ql_iscsi_stats->tcp_rx_window_probe);
1188 host_stats->tcprx_window_update =
1189 le64_to_cpu(ql_iscsi_stats->tcp_rx_window_update);
1190 host_stats->tcptx_window_probe_persist =
1191 le64_to_cpu(ql_iscsi_stats->tcp_tx_window_probe_persist);
1192 host_stats->ecc_error_correction =
1193 le64_to_cpu(ql_iscsi_stats->ecc_error_correction);
1194 host_stats->iscsi_pdu_tx = le64_to_cpu(ql_iscsi_stats->iscsi_pdu_tx);
1195 host_stats->iscsi_data_bytes_tx =
1196 le64_to_cpu(ql_iscsi_stats->iscsi_data_bytes_tx);
1197 host_stats->iscsi_pdu_rx = le64_to_cpu(ql_iscsi_stats->iscsi_pdu_rx);
1198 host_stats->iscsi_data_bytes_rx =
1199 le64_to_cpu(ql_iscsi_stats->iscsi_data_bytes_rx);
1200 host_stats->iscsi_io_completed =
1201 le64_to_cpu(ql_iscsi_stats->iscsi_io_completed);
1202 host_stats->iscsi_unexpected_io_rx =
1203 le64_to_cpu(ql_iscsi_stats->iscsi_unexpected_io_rx);
1204 host_stats->iscsi_format_error =
1205 le64_to_cpu(ql_iscsi_stats->iscsi_format_error);
1206 host_stats->iscsi_hdr_digest_error =
1207 le64_to_cpu(ql_iscsi_stats->iscsi_hdr_digest_error);
1208 host_stats->iscsi_data_digest_error =
1209 le64_to_cpu(ql_iscsi_stats->iscsi_data_digest_error);
1210 host_stats->iscsi_sequence_error =
1211 le64_to_cpu(ql_iscsi_stats->iscsi_sequence_error);
1212exit_host_stats:
1213 if (ql_iscsi_stats)
1214 dma_free_coherent(&ha->pdev->dev, host_stats_size,
1215 ql_iscsi_stats, iscsi_stats_dma);
1216
1217 ql4_printk(KERN_INFO, ha, "%s: Get host stats done\n",
1218 __func__);
1219 return ret;
1220}
1221
ed1086e0
VC		 1222static int qla4xxx_get_iface_param(struct iscsi_iface *iface,
1223 enum iscsi_param_type param_type,
1224 int param, char *buf)
1225{
1226 struct Scsi_Host *shost = iscsi_iface_to_shost(iface);
1227 struct scsi_qla_host *ha = to_qla_host(shost);
f8e93412
HZ		 1228 int ival;
1229 char *pval = NULL;
ed1086e0
VC		 1230 int len = -ENOSYS;
1231
f8e93412
HZ		 1232 if (param_type == ISCSI_NET_PARAM) {
1233 switch (param) {
1234 case ISCSI_NET_PARAM_IPV4_ADDR:
1235 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address);
1236 break;
1237 case ISCSI_NET_PARAM_IPV4_SUBNET:
1238 len = sprintf(buf, "%pI4\n",
1239 &ha->ip_config.subnet_mask);
1240 break;
1241 case ISCSI_NET_PARAM_IPV4_GW:
1242 len = sprintf(buf, "%pI4\n", &ha->ip_config.gateway);
1243 break;
1244 case ISCSI_NET_PARAM_IFACE_ENABLE:
1245 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1246 OP_STATE(ha->ip_config.ipv4_options,
1247 IPOPT_IPV4_PROTOCOL_ENABLE, pval);
1248 } else {
1249 OP_STATE(ha->ip_config.ipv6_options,
1250 IPV6_OPT_IPV6_PROTOCOL_ENABLE, pval);
1251 }
ed1086e0 1252
f8e93412
HZ		 1253 len = sprintf(buf, "%s\n", pval);
1254 break;
1255 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
ed1086e0 1256 len = sprintf(buf, "%s\n",
f8e93412
HZ		 1257 (ha->ip_config.tcp_options &
1258 TCPOPT_DHCP_ENABLE) ?
1259 "dhcp" : "static");
1260 break;
1261 case ISCSI_NET_PARAM_IPV6_ADDR:
1262 if (iface->iface_num == 0)
1263 len = sprintf(buf, "%pI6\n",
1264 &ha->ip_config.ipv6_addr0);
1265 if (iface->iface_num == 1)
1266 len = sprintf(buf, "%pI6\n",
1267 &ha->ip_config.ipv6_addr1);
1268 break;
1269 case ISCSI_NET_PARAM_IPV6_LINKLOCAL:
1270 len = sprintf(buf, "%pI6\n",
1271 &ha->ip_config.ipv6_link_local_addr);
1272 break;
1273 case ISCSI_NET_PARAM_IPV6_ROUTER:
1274 len = sprintf(buf, "%pI6\n",
1275 &ha->ip_config.ipv6_default_router_addr);
1276 break;
1277 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG:
1278 pval = (ha->ip_config.ipv6_addl_options &
1279 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE) ?
1280 "nd" : "static";
1281
1282 len = sprintf(buf, "%s\n", pval);
1283 break;
1284 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG:
1285 pval = (ha->ip_config.ipv6_addl_options &
1286 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR) ?
1287 "auto" : "static";
1288
1289 len = sprintf(buf, "%s\n", pval);
1290 break;
1291 case ISCSI_NET_PARAM_VLAN_ID:
1292 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1293 ival = ha->ip_config.ipv4_vlan_tag &
1294 ISCSI_MAX_VLAN_ID;
1295 else
1296 ival = ha->ip_config.ipv6_vlan_tag &
1297 ISCSI_MAX_VLAN_ID;
1298
1299 len = sprintf(buf, "%d\n", ival);
1300 break;
1301 case ISCSI_NET_PARAM_VLAN_PRIORITY:
1302 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1303 ival = (ha->ip_config.ipv4_vlan_tag >> 13) &
1304 ISCSI_MAX_VLAN_PRIORITY;
1305 else
1306 ival = (ha->ip_config.ipv6_vlan_tag >> 13) &
1307 ISCSI_MAX_VLAN_PRIORITY;
1308
1309 len = sprintf(buf, "%d\n", ival);
1310 break;
1311 case ISCSI_NET_PARAM_VLAN_ENABLED:
1312 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1313 OP_STATE(ha->ip_config.ipv4_options,
1314 IPOPT_VLAN_TAGGING_ENABLE, pval);
1315 } else {
1316 OP_STATE(ha->ip_config.ipv6_options,
1317 IPV6_OPT_VLAN_TAGGING_ENABLE, pval);
1318 }
1319 len = sprintf(buf, "%s\n", pval);
1320 break;
1321 case ISCSI_NET_PARAM_MTU:
1322 len = sprintf(buf, "%d\n", ha->ip_config.eth_mtu_size);
1323 break;
1324 case ISCSI_NET_PARAM_PORT:
1325 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1326 len = sprintf(buf, "%d\n",
1327 ha->ip_config.ipv4_port);
1328 else
1329 len = sprintf(buf, "%d\n",
1330 ha->ip_config.ipv6_port);
1331 break;
1332 case ISCSI_NET_PARAM_IPADDR_STATE:
1333 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1334 pval = iscsi_get_ipaddress_state_name(
1335 ha->ip_config.ipv4_addr_state);
1336 } else {
1337 if (iface->iface_num == 0)
1338 pval = iscsi_get_ipaddress_state_name(
1339 ha->ip_config.ipv6_addr0_state);
1340 else if (iface->iface_num == 1)
1341 pval = iscsi_get_ipaddress_state_name(
1342 ha->ip_config.ipv6_addr1_state);
1343 }
1344
1345 len = sprintf(buf, "%s\n", pval);
1346 break;
1347 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_STATE:
1348 pval = iscsi_get_ipaddress_state_name(
1349 ha->ip_config.ipv6_link_local_state);
1350 len = sprintf(buf, "%s\n", pval);
1351 break;
1352 case ISCSI_NET_PARAM_IPV6_ROUTER_STATE:
1353 pval = iscsi_get_router_state_name(
1354 ha->ip_config.ipv6_default_router_state);
1355 len = sprintf(buf, "%s\n", pval);
1356 break;
1357 case ISCSI_NET_PARAM_DELAYED_ACK_EN:
1358 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1359 OP_STATE(~ha->ip_config.tcp_options,
1360 TCPOPT_DELAYED_ACK_DISABLE, pval);
1361 } else {
1362 OP_STATE(~ha->ip_config.ipv6_tcp_options,
1363 IPV6_TCPOPT_DELAYED_ACK_DISABLE, pval);
1364 }
1365 len = sprintf(buf, "%s\n", pval);
1366 break;
1367 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE:
1368 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1369 OP_STATE(~ha->ip_config.tcp_options,
1370 TCPOPT_NAGLE_ALGO_DISABLE, pval);
1371 } else {
1372 OP_STATE(~ha->ip_config.ipv6_tcp_options,
1373 IPV6_TCPOPT_NAGLE_ALGO_DISABLE, pval);
1374 }
1375 len = sprintf(buf, "%s\n", pval);
1376 break;
1377 case ISCSI_NET_PARAM_TCP_WSF_DISABLE:
1378 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1379 OP_STATE(~ha->ip_config.tcp_options,
1380 TCPOPT_WINDOW_SCALE_DISABLE, pval);
1381 } else {
1382 OP_STATE(~ha->ip_config.ipv6_tcp_options,
1383 IPV6_TCPOPT_WINDOW_SCALE_DISABLE,
1384 pval);
1385 }
1386 len = sprintf(buf, "%s\n", pval);
1387 break;
1388 case ISCSI_NET_PARAM_TCP_WSF:
1389 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1390 len = sprintf(buf, "%d\n",
1391 ha->ip_config.tcp_wsf);
1392 else
1393 len = sprintf(buf, "%d\n",
1394 ha->ip_config.ipv6_tcp_wsf);
1395 break;
1396 case ISCSI_NET_PARAM_TCP_TIMER_SCALE:
1397 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1398 ival = (ha->ip_config.tcp_options &
1399 TCPOPT_TIMER_SCALE) >> 1;
1400 else
1401 ival = (ha->ip_config.ipv6_tcp_options &
1402 IPV6_TCPOPT_TIMER_SCALE) >> 1;
1403
1404 len = sprintf(buf, "%d\n", ival);
1405 break;
1406 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN:
1407 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1408 OP_STATE(ha->ip_config.tcp_options,
1409 TCPOPT_TIMESTAMP_ENABLE, pval);
1410 } else {
1411 OP_STATE(ha->ip_config.ipv6_tcp_options,
1412 IPV6_TCPOPT_TIMESTAMP_EN, pval);
1413 }
1414 len = sprintf(buf, "%s\n", pval);
1415 break;
1416 case ISCSI_NET_PARAM_CACHE_ID:
1417 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1418 len = sprintf(buf, "%d\n",
1419 ha->ip_config.ipv4_cache_id);
1420 else
1421 len = sprintf(buf, "%d\n",
1422 ha->ip_config.ipv6_cache_id);
1423 break;
1424 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN:
1425 OP_STATE(ha->ip_config.tcp_options,
1426 TCPOPT_DNS_SERVER_IP_EN, pval);
1427
1428 len = sprintf(buf, "%s\n", pval);
1429 break;
1430 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN:
1431 OP_STATE(ha->ip_config.tcp_options,
1432 TCPOPT_SLP_DA_INFO_EN, pval);
1433
1434 len = sprintf(buf, "%s\n", pval);
1435 break;
1436 case ISCSI_NET_PARAM_IPV4_TOS_EN:
1437 OP_STATE(ha->ip_config.ipv4_options,
1438 IPOPT_IPV4_TOS_EN, pval);
1439
1440 len = sprintf(buf, "%s\n", pval);
1441 break;
1442 case ISCSI_NET_PARAM_IPV4_TOS:
1443 len = sprintf(buf, "%d\n", ha->ip_config.ipv4_tos);
1444 break;
1445 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN:
1446 OP_STATE(ha->ip_config.ipv4_options,
1447 IPOPT_GRAT_ARP_EN, pval);
1448
1449 len = sprintf(buf, "%s\n", pval);
1450 break;
1451 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN:
1452 OP_STATE(ha->ip_config.ipv4_options, IPOPT_ALT_CID_EN,
1453 pval);
1454
1455 len = sprintf(buf, "%s\n", pval);
1456 break;
1457 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID:
1458 pval = (ha->ip_config.ipv4_alt_cid_len) ?
1459 (char *)ha->ip_config.ipv4_alt_cid : "";
1460
1461 len = sprintf(buf, "%s\n", pval);
1462 break;
1463 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN:
1464 OP_STATE(ha->ip_config.ipv4_options,
1465 IPOPT_REQ_VID_EN, pval);
1466
1467 len = sprintf(buf, "%s\n", pval);
1468 break;
1469 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN:
1470 OP_STATE(ha->ip_config.ipv4_options,
1471 IPOPT_USE_VID_EN, pval);
1472
1473 len = sprintf(buf, "%s\n", pval);
1474 break;
1475 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID:
1476 pval = (ha->ip_config.ipv4_vid_len) ?
1477 (char *)ha->ip_config.ipv4_vid : "";
1478
1479 len = sprintf(buf, "%s\n", pval);
1480 break;
1481 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN:
1482 OP_STATE(ha->ip_config.ipv4_options,
1483 IPOPT_LEARN_IQN_EN, pval);
1484
1485 len = sprintf(buf, "%s\n", pval);
1486 break;
1487 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE:
1488 OP_STATE(~ha->ip_config.ipv4_options,
1489 IPOPT_FRAGMENTATION_DISABLE, pval);
1490
1491 len = sprintf(buf, "%s\n", pval);
1492 break;
1493 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN:
1494 OP_STATE(ha->ip_config.ipv4_options,
1495 IPOPT_IN_FORWARD_EN, pval);
1496
1497 len = sprintf(buf, "%s\n", pval);
1498 break;
1499 case ISCSI_NET_PARAM_REDIRECT_EN:
1500 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1501 OP_STATE(ha->ip_config.ipv4_options,
1502 IPOPT_ARP_REDIRECT_EN, pval);
1503 } else {
1504 OP_STATE(ha->ip_config.ipv6_options,
1505 IPV6_OPT_REDIRECT_EN, pval);
1506 }
1507 len = sprintf(buf, "%s\n", pval);
1508 break;
1509 case ISCSI_NET_PARAM_IPV4_TTL:
1510 len = sprintf(buf, "%d\n", ha->ip_config.ipv4_ttl);
1511 break;
1512 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN:
1513 OP_STATE(ha->ip_config.ipv6_options,
1514 IPV6_OPT_GRAT_NEIGHBOR_ADV_EN, pval);
1515
1516 len = sprintf(buf, "%s\n", pval);
1517 break;
1518 case ISCSI_NET_PARAM_IPV6_MLD_EN:
1519 OP_STATE(ha->ip_config.ipv6_addl_options,
1520 IPV6_ADDOPT_MLD_EN, pval);
1521
1522 len = sprintf(buf, "%s\n", pval);
1523 break;
1524 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL:
1525 len = sprintf(buf, "%u\n", ha->ip_config.ipv6_flow_lbl);
1526 break;
1527 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS:
6ac73e8c 1528 len = sprintf(buf, "%d\n",
f8e93412
HZ		 1529 ha->ip_config.ipv6_traffic_class);
1530 break;
1531 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT:
6ac73e8c 1532 len = sprintf(buf, "%d\n",
f8e93412
HZ		 1533 ha->ip_config.ipv6_hop_limit);
1534 break;
1535 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO:
6ac73e8c 1536 len = sprintf(buf, "%d\n",
f8e93412
HZ		 1537 ha->ip_config.ipv6_nd_reach_time);
1538 break;
1539 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME:
6ac73e8c 1540 len = sprintf(buf, "%d\n",
f8e93412
HZ		 1541 ha->ip_config.ipv6_nd_rexmit_timer);
1542 break;
1543 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO:
1544 len = sprintf(buf, "%d\n",
1545 ha->ip_config.ipv6_nd_stale_timeout);
1546 break;
1547 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT:
1548 len = sprintf(buf, "%d\n",
1549 ha->ip_config.ipv6_dup_addr_detect_count);
1550 break;
1551 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU:
1552 len = sprintf(buf, "%d\n",
1553 ha->ip_config.ipv6_gw_advrt_mtu);
1554 break;
1555 default:
1556 len = -ENOSYS;
1557 }
1558 } else if (param_type == ISCSI_IFACE_PARAM) {
1559 switch (param) {
1560 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO:
1561 len = sprintf(buf, "%d\n", ha->ip_config.def_timeout);
1562 break;
1563 case ISCSI_IFACE_PARAM_HDRDGST_EN:
1564 OP_STATE(ha->ip_config.iscsi_options,
1565 ISCSIOPTS_HEADER_DIGEST_EN, pval);
1566
1567 len = sprintf(buf, "%s\n", pval);
1568 break;
1569 case ISCSI_IFACE_PARAM_DATADGST_EN:
1570 OP_STATE(ha->ip_config.iscsi_options,
1571 ISCSIOPTS_DATA_DIGEST_EN, pval);
1572
1573 len = sprintf(buf, "%s\n", pval);
1574 break;
1575 case ISCSI_IFACE_PARAM_IMM_DATA_EN:
1576 OP_STATE(ha->ip_config.iscsi_options,
1577 ISCSIOPTS_IMMEDIATE_DATA_EN, pval);
1578
1579 len = sprintf(buf, "%s\n", pval);
1580 break;
1581 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN:
1582 OP_STATE(ha->ip_config.iscsi_options,
1583 ISCSIOPTS_INITIAL_R2T_EN, pval);
1584
1585 len = sprintf(buf, "%s\n", pval);
1586 break;
1587 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN:
1588 OP_STATE(ha->ip_config.iscsi_options,
1589 ISCSIOPTS_DATA_SEQ_INORDER_EN, pval);
1590
1591 len = sprintf(buf, "%s\n", pval);
1592 break;
1593 case ISCSI_IFACE_PARAM_PDU_INORDER_EN:
1594 OP_STATE(ha->ip_config.iscsi_options,
1595 ISCSIOPTS_DATA_PDU_INORDER_EN, pval);
1596
1597 len = sprintf(buf, "%s\n", pval);
1598 break;
1599 case ISCSI_IFACE_PARAM_ERL:
1600 len = sprintf(buf, "%d\n",
1601 (ha->ip_config.iscsi_options &
1602 ISCSIOPTS_ERL));
1603 break;
1604 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH:
1605 len = sprintf(buf, "%u\n",
1606 ha->ip_config.iscsi_max_pdu_size *
1607 BYTE_UNITS);
1608 break;
1609 case ISCSI_IFACE_PARAM_FIRST_BURST:
1610 len = sprintf(buf, "%u\n",
1611 ha->ip_config.iscsi_first_burst_len *
1612 BYTE_UNITS);
1613 break;
1614 case ISCSI_IFACE_PARAM_MAX_R2T:
1615 len = sprintf(buf, "%d\n",
1616 ha->ip_config.iscsi_max_outstnd_r2t);
1617 break;
1618 case ISCSI_IFACE_PARAM_MAX_BURST:
1619 len = sprintf(buf, "%u\n",
1620 ha->ip_config.iscsi_max_burst_len *
1621 BYTE_UNITS);
1622 break;
1623 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN:
1624 OP_STATE(ha->ip_config.iscsi_options,
1625 ISCSIOPTS_CHAP_AUTH_EN, pval);
1626
1627 len = sprintf(buf, "%s\n", pval);
1628 break;
1629 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN:
1630 OP_STATE(ha->ip_config.iscsi_options,
1631 ISCSIOPTS_BIDI_CHAP_EN, pval);
1632
1633 len = sprintf(buf, "%s\n", pval);
1634 break;
1635 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL:
1636 OP_STATE(ha->ip_config.iscsi_options,
1637 ISCSIOPTS_DISCOVERY_AUTH_EN, pval);
1638
1639 len = sprintf(buf, "%s\n", pval);
1640 break;
1641 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN:
1642 OP_STATE(ha->ip_config.iscsi_options,
1643 ISCSIOPTS_DISCOVERY_LOGOUT_EN, pval);
1644
1645 len = sprintf(buf, "%s\n", pval);
1646 break;
1647 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN:
1648 OP_STATE(ha->ip_config.iscsi_options,
1649 ISCSIOPTS_STRICT_LOGIN_COMP_EN, pval);
1650
1651 len = sprintf(buf, "%s\n", pval);
1652 break;
1653 case ISCSI_IFACE_PARAM_INITIATOR_NAME:
1654 len = sprintf(buf, "%s\n", ha->ip_config.iscsi_name);
1655 break;
1656 default:
1657 len = -ENOSYS;
1658 }
ed1086e0
VC		 1659 }
1660
1661 return len;
1662}
1663
b3a271a9
MR		 1664static struct iscsi_endpoint *
1665qla4xxx_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr,
1666 int non_blocking)
5c656af7 1667{
b3a271a9
MR		 1668 int ret;
1669 struct iscsi_endpoint *ep;
1670 struct qla_endpoint *qla_ep;
1671 struct scsi_qla_host *ha;
1672 struct sockaddr_in *addr;
1673 struct sockaddr_in6 *addr6;
5c656af7 1674
b3a271a9
MR		 1675 if (!shost) {
1676 ret = -ENXIO;
c343c5e0 1677 pr_err("%s: shost is NULL\n", __func__);
b3a271a9
MR		 1678 return ERR_PTR(ret);
1679 }
5c656af7 1680
b3a271a9 1681 ha = iscsi_host_priv(shost);
b3a271a9
MR		 1682 ep = iscsi_create_endpoint(sizeof(struct qla_endpoint));
1683 if (!ep) {
1684 ret = -ENOMEM;
1685 return ERR_PTR(ret);
1686 }
1687
1688 qla_ep = ep->dd_data;
1689 memset(qla_ep, 0, sizeof(struct qla_endpoint));
1690 if (dst_addr->sa_family == AF_INET) {
1691 memcpy(&qla_ep->dst_addr, dst_addr, sizeof(struct sockaddr_in));
1692 addr = (struct sockaddr_in *)&qla_ep->dst_addr;
1693 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI4\n", __func__,
1694 (char *)&addr->sin_addr));
1695 } else if (dst_addr->sa_family == AF_INET6) {
1696 memcpy(&qla_ep->dst_addr, dst_addr,
1697 sizeof(struct sockaddr_in6));
1698 addr6 = (struct sockaddr_in6 *)&qla_ep->dst_addr;
1699 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI6\n", __func__,
1700 (char *)&addr6->sin6_addr));
c343c5e0
VC		 1701 } else {
1702 ql4_printk(KERN_WARNING, ha, "%s: Invalid endpoint\n",
1703 __func__);
b3a271a9
MR		 1704 }
1705
1706 qla_ep->host = shost;
1707
1708 return ep;
5c656af7
MC		 1709}
1710
b3a271a9 1711static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms)
afaf5a2d 1712{
b3a271a9
MR		 1713 struct qla_endpoint *qla_ep;
1714 struct scsi_qla_host *ha;
1715 int ret = 0;
afaf5a2d 1716
b3a271a9
MR		 1717 qla_ep = ep->dd_data;
1718 ha = to_qla_host(qla_ep->host);
c343c5e0 1719 DEBUG2(pr_info_ratelimited("%s: host: %ld\n", __func__, ha->host_no));
b3a271a9 1720
13483730 1721 if (adapter_up(ha) && !test_bit(AF_BUILD_DDB_LIST, &ha->flags))
b3a271a9
MR		 1722 ret = 1;
1723
1724 return ret;
1725}
1726
1727static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep)
1728{
c343c5e0
VC		 1729 struct qla_endpoint *qla_ep;
1730 struct scsi_qla_host *ha;
1731
1732 qla_ep = ep->dd_data;
1733 ha = to_qla_host(qla_ep->host);
1734 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__,
1735 ha->host_no));
b3a271a9
MR		 1736 iscsi_destroy_endpoint(ep);
1737}
1738
1739static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep,
1740 enum iscsi_param param,
1741 char *buf)
1742{
1743 struct qla_endpoint *qla_ep = ep->dd_data;
1744 struct sockaddr *dst_addr;
c343c5e0 1745 struct scsi_qla_host *ha;
b3a271a9 1746
73597bdd
AC		 1747 if (!qla_ep)
1748 return -ENOTCONN;
1749
c343c5e0
VC		 1750 ha = to_qla_host(qla_ep->host);
1751 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__,
1752 ha->host_no));
b3a271a9
MR		 1753
1754 switch (param) {
1755 case ISCSI_PARAM_CONN_PORT:
1756 case ISCSI_PARAM_CONN_ADDRESS:
b3a271a9
MR		 1757 dst_addr = (struct sockaddr *)&qla_ep->dst_addr;
1758 if (!dst_addr)
1759 return -ENOTCONN;
1760
1761 return iscsi_conn_get_addr_param((struct sockaddr_storage *)
1762 &qla_ep->dst_addr, param, buf);
1763 default:
1764 return -ENOSYS;
1765 }
1766}
1767
1768static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn,
1769 struct iscsi_stats *stats)
1770{
1771 struct iscsi_session *sess;
1772 struct iscsi_cls_session *cls_sess;
1773 struct ddb_entry *ddb_entry;
1774 struct scsi_qla_host *ha;
1775 struct ql_iscsi_stats *ql_iscsi_stats;
1776 int stats_size;
1777 int ret;
1778 dma_addr_t iscsi_stats_dma;
1779
b3a271a9
MR		 1780 cls_sess = iscsi_conn_to_session(cls_conn);
1781 sess = cls_sess->dd_data;
1782 ddb_entry = sess->dd_data;
1783 ha = ddb_entry->ha;
1784
c343c5e0
VC		 1785 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__,
1786 ha->host_no));
b3a271a9
MR		 1787 stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats));
1788 /* Allocate memory */
1789 ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size,
1790 &iscsi_stats_dma, GFP_KERNEL);
1791 if (!ql_iscsi_stats) {
1792 ql4_printk(KERN_ERR, ha,
1793 "Unable to allocate memory for iscsi stats\n");
1794 goto exit_get_stats;
568d303b 1795 }
b3a271a9
MR		 1796
1797 ret = qla4xxx_get_mgmt_data(ha, ddb_entry->fw_ddb_index, stats_size,
1798 iscsi_stats_dma);
1799 if (ret != QLA_SUCCESS) {
1800 ql4_printk(KERN_ERR, ha,
59e13d48 1801 "Unable to retrieve iscsi stats\n");
b3a271a9
MR		 1802 goto free_stats;
1803 }
1804
1805 /* octets */
1806 stats->txdata_octets = le64_to_cpu(ql_iscsi_stats->tx_data_octets);
1807 stats->rxdata_octets = le64_to_cpu(ql_iscsi_stats->rx_data_octets);
1808 /* xmit pdus */
1809 stats->noptx_pdus = le32_to_cpu(ql_iscsi_stats->tx_nopout_pdus);
1810 stats->scsicmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_cmd_pdus);
1811 stats->tmfcmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_tmf_cmd_pdus);
1812 stats->login_pdus = le32_to_cpu(ql_iscsi_stats->tx_login_cmd_pdus);
1813 stats->text_pdus = le32_to_cpu(ql_iscsi_stats->tx_text_cmd_pdus);
1814 stats->dataout_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_write_pdus);
1815 stats->logout_pdus = le32_to_cpu(ql_iscsi_stats->tx_logout_cmd_pdus);
1816 stats->snack_pdus = le32_to_cpu(ql_iscsi_stats->tx_snack_req_pdus);
1817 /* recv pdus */
1818 stats->noprx_pdus = le32_to_cpu(ql_iscsi_stats->rx_nopin_pdus);
1819 stats->scsirsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_resp_pdus);
1820 stats->tmfrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_tmf_resp_pdus);
1821 stats->textrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_text_resp_pdus);
1822 stats->datain_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_read_pdus);
1823 stats->logoutrsp_pdus =
1824 le32_to_cpu(ql_iscsi_stats->rx_logout_resp_pdus);
1825 stats->r2t_pdus = le32_to_cpu(ql_iscsi_stats->rx_r2t_pdus);
1826 stats->async_pdus = le32_to_cpu(ql_iscsi_stats->rx_async_pdus);
1827 stats->rjt_pdus = le32_to_cpu(ql_iscsi_stats->rx_reject_pdus);
1828
1829free_stats:
1830 dma_free_coherent(&ha->pdev->dev, stats_size, ql_iscsi_stats,
1831 iscsi_stats_dma);
1832exit_get_stats:
1833 return;
1834}
1835
1836static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc)
1837{
1838 struct iscsi_cls_session *session;
1839 struct iscsi_session *sess;
1840 unsigned long flags;
1841 enum blk_eh_timer_return ret = BLK_EH_NOT_HANDLED;
1842
1843 session = starget_to_session(scsi_target(sc->device));
1844 sess = session->dd_data;
1845
1846 spin_lock_irqsave(&session->lock, flags);
1847 if (session->state == ISCSI_SESSION_FAILED)
1848 ret = BLK_EH_RESET_TIMER;
1849 spin_unlock_irqrestore(&session->lock, flags);
1850
1851 return ret;
afaf5a2d
DS		 1852}
1853
3254dbe9
VC		 1854static void qla4xxx_set_port_speed(struct Scsi_Host *shost)
1855{
1856 struct scsi_qla_host *ha = to_qla_host(shost);
e16d166e 1857 struct iscsi_cls_host *ihost = shost->shost_data;
3254dbe9
VC		 1858 uint32_t speed = ISCSI_PORT_SPEED_UNKNOWN;
1859
1860 qla4xxx_get_firmware_state(ha);
1861
1862 switch (ha->addl_fw_state & 0x0F00) {
1863 case FW_ADDSTATE_LINK_SPEED_10MBPS:
1864 speed = ISCSI_PORT_SPEED_10MBPS;
1865 break;
1866 case FW_ADDSTATE_LINK_SPEED_100MBPS:
1867 speed = ISCSI_PORT_SPEED_100MBPS;
1868 break;
1869 case FW_ADDSTATE_LINK_SPEED_1GBPS:
1870 speed = ISCSI_PORT_SPEED_1GBPS;
1871 break;
1872 case FW_ADDSTATE_LINK_SPEED_10GBPS:
1873 speed = ISCSI_PORT_SPEED_10GBPS;
1874 break;
1875 }
1876 ihost->port_speed = speed;
1877}
1878
1879static void qla4xxx_set_port_state(struct Scsi_Host *shost)
1880{
1881 struct scsi_qla_host *ha = to_qla_host(shost);
e16d166e 1882 struct iscsi_cls_host *ihost = shost->shost_data;
3254dbe9
VC		 1883 uint32_t state = ISCSI_PORT_STATE_DOWN;
1884
1885 if (test_bit(AF_LINK_UP, &ha->flags))
1886 state = ISCSI_PORT_STATE_UP;
1887
1888 ihost->port_state = state;
1889}
1890
aa1e93a2
MC		 1891static int qla4xxx_host_get_param(struct Scsi_Host *shost,
1892 enum iscsi_host_param param, char *buf)
1893{
1894 struct scsi_qla_host *ha = to_qla_host(shost);
1895 int len;
1896
1897 switch (param) {
1898 case ISCSI_HOST_PARAM_HWADDRESS:
7ffc49a6 1899 len = sysfs_format_mac(buf, ha->my_mac, MAC_ADDR_LEN);
8ad5781a 1900 break;
22236961 1901 case ISCSI_HOST_PARAM_IPADDRESS:
2bab08fc 1902 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address);
22236961 1903 break;
8ad5781a 1904 case ISCSI_HOST_PARAM_INITIATOR_NAME:
22236961 1905 len = sprintf(buf, "%s\n", ha->name_string);
aa1e93a2 1906 break;
3254dbe9
VC		 1907 case ISCSI_HOST_PARAM_PORT_STATE:
1908 qla4xxx_set_port_state(shost);
1909 len = sprintf(buf, "%s\n", iscsi_get_port_state_name(shost));
1910 break;
1911 case ISCSI_HOST_PARAM_PORT_SPEED:
1912 qla4xxx_set_port_speed(shost);
1913 len = sprintf(buf, "%s\n", iscsi_get_port_speed_name(shost));
1914 break;
aa1e93a2
MC		 1915 default:
1916 return -ENOSYS;
1917 }
1918
1919 return len;
1920}
1921
ed1086e0
VC		 1922static void qla4xxx_create_ipv4_iface(struct scsi_qla_host *ha)
1923{
1924 if (ha->iface_ipv4)
1925 return;
1926
1927 /* IPv4 */
1928 ha->iface_ipv4 = iscsi_create_iface(ha->host,
1929 &qla4xxx_iscsi_transport,
1930 ISCSI_IFACE_TYPE_IPV4, 0, 0);
1931 if (!ha->iface_ipv4)
1932 ql4_printk(KERN_ERR, ha, "Could not create IPv4 iSCSI "
1933 "iface0.\n");
1934}
1935
1936static void qla4xxx_create_ipv6_iface(struct scsi_qla_host *ha)
1937{
1938 if (!ha->iface_ipv6_0)
1939 /* IPv6 iface-0 */
1940 ha->iface_ipv6_0 = iscsi_create_iface(ha->host,
1941 &qla4xxx_iscsi_transport,
1942 ISCSI_IFACE_TYPE_IPV6, 0,
1943 0);
1944 if (!ha->iface_ipv6_0)
1945 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI "
1946 "iface0.\n");
1947
1948 if (!ha->iface_ipv6_1)
1949 /* IPv6 iface-1 */
1950 ha->iface_ipv6_1 = iscsi_create_iface(ha->host,
1951 &qla4xxx_iscsi_transport,
1952 ISCSI_IFACE_TYPE_IPV6, 1,
1953 0);
1954 if (!ha->iface_ipv6_1)
1955 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI "
1956 "iface1.\n");
1957}
1958
1959static void qla4xxx_create_ifaces(struct scsi_qla_host *ha)
1960{
1961 if (ha->ip_config.ipv4_options & IPOPT_IPV4_PROTOCOL_ENABLE)
1962 qla4xxx_create_ipv4_iface(ha);
1963
1964 if (ha->ip_config.ipv6_options & IPV6_OPT_IPV6_PROTOCOL_ENABLE)
1965 qla4xxx_create_ipv6_iface(ha);
1966}
1967
1968static void qla4xxx_destroy_ipv4_iface(struct scsi_qla_host *ha)
1969{
1970 if (ha->iface_ipv4) {
1971 iscsi_destroy_iface(ha->iface_ipv4);
1972 ha->iface_ipv4 = NULL;
1973 }
1974}
1975
1976static void qla4xxx_destroy_ipv6_iface(struct scsi_qla_host *ha)
1977{
1978 if (ha->iface_ipv6_0) {
1979 iscsi_destroy_iface(ha->iface_ipv6_0);
1980 ha->iface_ipv6_0 = NULL;
1981 }
1982 if (ha->iface_ipv6_1) {
1983 iscsi_destroy_iface(ha->iface_ipv6_1);
1984 ha->iface_ipv6_1 = NULL;
1985 }
1986}
1987
1988static void qla4xxx_destroy_ifaces(struct scsi_qla_host *ha)
1989{
1990 qla4xxx_destroy_ipv4_iface(ha);
1991 qla4xxx_destroy_ipv6_iface(ha);
1992}
1993
d00efe3f
MC		 1994static void qla4xxx_set_ipv6(struct scsi_qla_host *ha,
1995 struct iscsi_iface_param_info *iface_param,
1996 struct addr_ctrl_blk *init_fw_cb)
1997{
1998 /*
1999 * iface_num 0 is valid for IPv6 Addr, linklocal, router, autocfg.
2000 * iface_num 1 is valid only for IPv6 Addr.
2001 */
2002 switch (iface_param->param) {
2003 case ISCSI_NET_PARAM_IPV6_ADDR:
2004 if (iface_param->iface_num & 0x1)
2005 /* IPv6 Addr 1 */
2006 memcpy(init_fw_cb->ipv6_addr1, iface_param->value,
2007 sizeof(init_fw_cb->ipv6_addr1));
2008 else
2009 /* IPv6 Addr 0 */
2010 memcpy(init_fw_cb->ipv6_addr0, iface_param->value,
2011 sizeof(init_fw_cb->ipv6_addr0));
2012 break;
2013 case ISCSI_NET_PARAM_IPV6_LINKLOCAL:
2014 if (iface_param->iface_num & 0x1)
2015 break;
2016 memcpy(init_fw_cb->ipv6_if_id, &iface_param->value[8],
2017 sizeof(init_fw_cb->ipv6_if_id));
2018 break;
2019 case ISCSI_NET_PARAM_IPV6_ROUTER:
2020 if (iface_param->iface_num & 0x1)
2021 break;
2022 memcpy(init_fw_cb->ipv6_dflt_rtr_addr, iface_param->value,
2023 sizeof(init_fw_cb->ipv6_dflt_rtr_addr));
2024 break;
2025 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG:
2026 /* Autocfg applies to even interface */
2027 if (iface_param->iface_num & 0x1)
2028 break;
2029
2030 if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_DISABLE)
2031 init_fw_cb->ipv6_addtl_opts &=
2032 cpu_to_le16(
2033 ~IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE);
2034 else if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_ND_ENABLE)
2035 init_fw_cb->ipv6_addtl_opts |=
2036 cpu_to_le16(
2037 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE);
2038 else
f8e93412
HZ		 2039 ql4_printk(KERN_ERR, ha,
2040 "Invalid autocfg setting for IPv6 addr\n");
d00efe3f
MC		 2041 break;
2042 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG:
2043 /* Autocfg applies to even interface */
2044 if (iface_param->iface_num & 0x1)
2045 break;
2046
2047 if (iface_param->value[0] ==
2048 ISCSI_IPV6_LINKLOCAL_AUTOCFG_ENABLE)
2049 init_fw_cb->ipv6_addtl_opts |= cpu_to_le16(
2050 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR);
2051 else if (iface_param->value[0] ==
2052 ISCSI_IPV6_LINKLOCAL_AUTOCFG_DISABLE)
2053 init_fw_cb->ipv6_addtl_opts &= cpu_to_le16(
2054 ~IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR);
2055 else
f8e93412
HZ		 2056 ql4_printk(KERN_ERR, ha,
2057 "Invalid autocfg setting for IPv6 linklocal addr\n");
d00efe3f
MC		 2058 break;
2059 case ISCSI_NET_PARAM_IPV6_ROUTER_AUTOCFG:
2060 /* Autocfg applies to even interface */
2061 if (iface_param->iface_num & 0x1)
2062 break;
2063
2064 if (iface_param->value[0] == ISCSI_IPV6_ROUTER_AUTOCFG_ENABLE)
2065 memset(init_fw_cb->ipv6_dflt_rtr_addr, 0,
2066 sizeof(init_fw_cb->ipv6_dflt_rtr_addr));
2067 break;
2068 case ISCSI_NET_PARAM_IFACE_ENABLE:
ed1086e0 2069 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) {
d00efe3f
MC		 2070 init_fw_cb->ipv6_opts |=
2071 cpu_to_le16(IPV6_OPT_IPV6_PROTOCOL_ENABLE);
ed1086e0
VC		 2072 qla4xxx_create_ipv6_iface(ha);
2073 } else {
d00efe3f
MC		 2074 init_fw_cb->ipv6_opts &=
2075 cpu_to_le16(~IPV6_OPT_IPV6_PROTOCOL_ENABLE &
2076 0xFFFF);
ed1086e0
VC		 2077 qla4xxx_destroy_ipv6_iface(ha);
2078 }
d00efe3f 2079 break;
2d63673b 2080 case ISCSI_NET_PARAM_VLAN_TAG:
d00efe3f
MC		 2081 if (iface_param->len != sizeof(init_fw_cb->ipv6_vlan_tag))
2082 break;
6ac73e8c
VC		 2083 init_fw_cb->ipv6_vlan_tag =
2084 cpu_to_be16(*(uint16_t *)iface_param->value);
2085 break;
2086 case ISCSI_NET_PARAM_VLAN_ENABLED:
2087 if (iface_param->value[0] == ISCSI_VLAN_ENABLE)
2088 init_fw_cb->ipv6_opts |=
2089 cpu_to_le16(IPV6_OPT_VLAN_TAGGING_ENABLE);
2090 else
2091 init_fw_cb->ipv6_opts &=
2092 cpu_to_le16(~IPV6_OPT_VLAN_TAGGING_ENABLE);
d00efe3f 2093 break;
943c157b
VC		 2094 case ISCSI_NET_PARAM_MTU:
2095 init_fw_cb->eth_mtu_size =
2096 cpu_to_le16(*(uint16_t *)iface_param->value);
2097 break;
2ada7fc5
VC		 2098 case ISCSI_NET_PARAM_PORT:
2099 /* Autocfg applies to even interface */
2100 if (iface_param->iface_num & 0x1)
2101 break;
2102
2103 init_fw_cb->ipv6_port =
2104 cpu_to_le16(*(uint16_t *)iface_param->value);
2105 break;
f8e93412
HZ		 2106 case ISCSI_NET_PARAM_DELAYED_ACK_EN:
2107 if (iface_param->iface_num & 0x1)
2108 break;
2109 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2110 init_fw_cb->ipv6_tcp_opts |=
2111 cpu_to_le16(IPV6_TCPOPT_DELAYED_ACK_DISABLE);
2112 else
2113 init_fw_cb->ipv6_tcp_opts &=
8f10872a
VC		 2114 cpu_to_le16(~IPV6_TCPOPT_DELAYED_ACK_DISABLE &
2115 0xFFFF);
f8e93412
HZ		 2116 break;
2117 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE:
2118 if (iface_param->iface_num & 0x1)
2119 break;
2120 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2121 init_fw_cb->ipv6_tcp_opts |=
2122 cpu_to_le16(IPV6_TCPOPT_NAGLE_ALGO_DISABLE);
2123 else
2124 init_fw_cb->ipv6_tcp_opts &=
2125 cpu_to_le16(~IPV6_TCPOPT_NAGLE_ALGO_DISABLE);
2126 break;
2127 case ISCSI_NET_PARAM_TCP_WSF_DISABLE:
2128 if (iface_param->iface_num & 0x1)
2129 break;
2130 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2131 init_fw_cb->ipv6_tcp_opts |=
2132 cpu_to_le16(IPV6_TCPOPT_WINDOW_SCALE_DISABLE);
2133 else
2134 init_fw_cb->ipv6_tcp_opts &=
2135 cpu_to_le16(~IPV6_TCPOPT_WINDOW_SCALE_DISABLE);
2136 break;
2137 case ISCSI_NET_PARAM_TCP_WSF:
2138 if (iface_param->iface_num & 0x1)
2139 break;
2140 init_fw_cb->ipv6_tcp_wsf = iface_param->value[0];
2141 break;
2142 case ISCSI_NET_PARAM_TCP_TIMER_SCALE:
2143 if (iface_param->iface_num & 0x1)
2144 break;
2145 init_fw_cb->ipv6_tcp_opts &=
2146 cpu_to_le16(~IPV6_TCPOPT_TIMER_SCALE);
2147 init_fw_cb->ipv6_tcp_opts |=
2148 cpu_to_le16((iface_param->value[0] << 1) &
2149 IPV6_TCPOPT_TIMER_SCALE);
2150 break;
2151 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN:
2152 if (iface_param->iface_num & 0x1)
2153 break;
2154 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2155 init_fw_cb->ipv6_tcp_opts |=
2156 cpu_to_le16(IPV6_TCPOPT_TIMESTAMP_EN);
2157 else
2158 init_fw_cb->ipv6_tcp_opts &=
2159 cpu_to_le16(~IPV6_TCPOPT_TIMESTAMP_EN);
2160 break;
2161 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN:
2162 if (iface_param->iface_num & 0x1)
2163 break;
2164 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2165 init_fw_cb->ipv6_opts |=
2166 cpu_to_le16(IPV6_OPT_GRAT_NEIGHBOR_ADV_EN);
2167 else
2168 init_fw_cb->ipv6_opts &=
2169 cpu_to_le16(~IPV6_OPT_GRAT_NEIGHBOR_ADV_EN);
2170 break;
2171 case ISCSI_NET_PARAM_REDIRECT_EN:
2172 if (iface_param->iface_num & 0x1)
2173 break;
2174 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2175 init_fw_cb->ipv6_opts |=
2176 cpu_to_le16(IPV6_OPT_REDIRECT_EN);
2177 else
2178 init_fw_cb->ipv6_opts &=
2179 cpu_to_le16(~IPV6_OPT_REDIRECT_EN);
2180 break;
2181 case ISCSI_NET_PARAM_IPV6_MLD_EN:
2182 if (iface_param->iface_num & 0x1)
2183 break;
2184 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2185 init_fw_cb->ipv6_addtl_opts |=
2186 cpu_to_le16(IPV6_ADDOPT_MLD_EN);
2187 else
2188 init_fw_cb->ipv6_addtl_opts &=
2189 cpu_to_le16(~IPV6_ADDOPT_MLD_EN);
2190 break;
2191 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL:
2192 if (iface_param->iface_num & 0x1)
2193 break;
2194 init_fw_cb->ipv6_flow_lbl =
2195 cpu_to_le16(*(uint16_t *)iface_param->value);
2196 break;
2197 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS:
2198 if (iface_param->iface_num & 0x1)
2199 break;
2200 init_fw_cb->ipv6_traffic_class = iface_param->value[0];
2201 break;
2202 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT:
2203 if (iface_param->iface_num & 0x1)
2204 break;
2205 init_fw_cb->ipv6_hop_limit = iface_param->value[0];
2206 break;
2207 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO:
2208 if (iface_param->iface_num & 0x1)
2209 break;
2210 init_fw_cb->ipv6_nd_reach_time =
2211 cpu_to_le32(*(uint32_t *)iface_param->value);
2212 break;
2213 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME:
2214 if (iface_param->iface_num & 0x1)
2215 break;
2216 init_fw_cb->ipv6_nd_rexmit_timer =
2217 cpu_to_le32(*(uint32_t *)iface_param->value);
2218 break;
2219 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO:
2220 if (iface_param->iface_num & 0x1)
2221 break;
2222 init_fw_cb->ipv6_nd_stale_timeout =
2223 cpu_to_le32(*(uint32_t *)iface_param->value);
2224 break;
2225 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT:
2226 if (iface_param->iface_num & 0x1)
2227 break;
2228 init_fw_cb->ipv6_dup_addr_detect_count = iface_param->value[0];
2229 break;
2230 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU:
2231 if (iface_param->iface_num & 0x1)
2232 break;
2233 init_fw_cb->ipv6_gw_advrt_mtu =
2234 cpu_to_le32(*(uint32_t *)iface_param->value);
2235 break;
d00efe3f
MC		 2236 default:
2237 ql4_printk(KERN_ERR, ha, "Unknown IPv6 param = %d\n",
2238 iface_param->param);
2239 break;
2240 }
2241}
2242
2243static void qla4xxx_set_ipv4(struct scsi_qla_host *ha,
2244 struct iscsi_iface_param_info *iface_param,
2245 struct addr_ctrl_blk *init_fw_cb)
2246{
2247 switch (iface_param->param) {
2248 case ISCSI_NET_PARAM_IPV4_ADDR:
2249 memcpy(init_fw_cb->ipv4_addr, iface_param->value,
2250 sizeof(init_fw_cb->ipv4_addr));
2251 break;
2252 case ISCSI_NET_PARAM_IPV4_SUBNET:
2253 memcpy(init_fw_cb->ipv4_subnet, iface_param->value,
2254 sizeof(init_fw_cb->ipv4_subnet));
2255 break;
2256 case ISCSI_NET_PARAM_IPV4_GW:
2257 memcpy(init_fw_cb->ipv4_gw_addr, iface_param->value,
2258 sizeof(init_fw_cb->ipv4_gw_addr));
2259 break;
2260 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
2261 if (iface_param->value[0] == ISCSI_BOOTPROTO_DHCP)
2262 init_fw_cb->ipv4_tcp_opts |=
2263 cpu_to_le16(TCPOPT_DHCP_ENABLE);
2264 else if (iface_param->value[0] == ISCSI_BOOTPROTO_STATIC)
2265 init_fw_cb->ipv4_tcp_opts &=
2266 cpu_to_le16(~TCPOPT_DHCP_ENABLE);
2267 else
2268 ql4_printk(KERN_ERR, ha, "Invalid IPv4 bootproto\n");
2269 break;
2270 case ISCSI_NET_PARAM_IFACE_ENABLE:
ed1086e0 2271 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) {
d00efe3f 2272 init_fw_cb->ipv4_ip_opts |=
2bab08fc 2273 cpu_to_le16(IPOPT_IPV4_PROTOCOL_ENABLE);
ed1086e0
VC		 2274 qla4xxx_create_ipv4_iface(ha);
2275 } else {
d00efe3f 2276 init_fw_cb->ipv4_ip_opts &=
2bab08fc 2277 cpu_to_le16(~IPOPT_IPV4_PROTOCOL_ENABLE &
d00efe3f 2278 0xFFFF);
ed1086e0
VC		 2279 qla4xxx_destroy_ipv4_iface(ha);
2280 }
d00efe3f 2281 break;
2d63673b 2282 case ISCSI_NET_PARAM_VLAN_TAG:
d00efe3f
MC		 2283 if (iface_param->len != sizeof(init_fw_cb->ipv4_vlan_tag))
2284 break;
6ac73e8c
VC		 2285 init_fw_cb->ipv4_vlan_tag =
2286 cpu_to_be16(*(uint16_t *)iface_param->value);
2287 break;
2288 case ISCSI_NET_PARAM_VLAN_ENABLED:
2289 if (iface_param->value[0] == ISCSI_VLAN_ENABLE)
2290 init_fw_cb->ipv4_ip_opts |=
2291 cpu_to_le16(IPOPT_VLAN_TAGGING_ENABLE);
2292 else
2293 init_fw_cb->ipv4_ip_opts &=
2294 cpu_to_le16(~IPOPT_VLAN_TAGGING_ENABLE);
d00efe3f 2295 break;
943c157b
VC		 2296 case ISCSI_NET_PARAM_MTU:
2297 init_fw_cb->eth_mtu_size =
2298 cpu_to_le16(*(uint16_t *)iface_param->value);
2299 break;
2ada7fc5
VC		 2300 case ISCSI_NET_PARAM_PORT:
2301 init_fw_cb->ipv4_port =
2302 cpu_to_le16(*(uint16_t *)iface_param->value);
2303 break;
f8e93412
HZ		 2304 case ISCSI_NET_PARAM_DELAYED_ACK_EN:
2305 if (iface_param->iface_num & 0x1)
2306 break;
2307 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2308 init_fw_cb->ipv4_tcp_opts |=
2309 cpu_to_le16(TCPOPT_DELAYED_ACK_DISABLE);
2310 else
2311 init_fw_cb->ipv4_tcp_opts &=
8f10872a
VC		 2312 cpu_to_le16(~TCPOPT_DELAYED_ACK_DISABLE &
2313 0xFFFF);
f8e93412
HZ		 2314 break;
2315 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE:
2316 if (iface_param->iface_num & 0x1)
2317 break;
2318 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2319 init_fw_cb->ipv4_tcp_opts |=
2320 cpu_to_le16(TCPOPT_NAGLE_ALGO_DISABLE);
2321 else
2322 init_fw_cb->ipv4_tcp_opts &=
2323 cpu_to_le16(~TCPOPT_NAGLE_ALGO_DISABLE);
2324 break;
2325 case ISCSI_NET_PARAM_TCP_WSF_DISABLE:
2326 if (iface_param->iface_num & 0x1)
2327 break;
2328 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2329 init_fw_cb->ipv4_tcp_opts |=
2330 cpu_to_le16(TCPOPT_WINDOW_SCALE_DISABLE);
2331 else
2332 init_fw_cb->ipv4_tcp_opts &=
2333 cpu_to_le16(~TCPOPT_WINDOW_SCALE_DISABLE);
2334 break;
2335 case ISCSI_NET_PARAM_TCP_WSF:
2336 if (iface_param->iface_num & 0x1)
2337 break;
2338 init_fw_cb->ipv4_tcp_wsf = iface_param->value[0];
2339 break;
2340 case ISCSI_NET_PARAM_TCP_TIMER_SCALE:
2341 if (iface_param->iface_num & 0x1)
2342 break;
2343 init_fw_cb->ipv4_tcp_opts &= cpu_to_le16(~TCPOPT_TIMER_SCALE);
2344 init_fw_cb->ipv4_tcp_opts |=
2345 cpu_to_le16((iface_param->value[0] << 1) &
2346 TCPOPT_TIMER_SCALE);
2347 break;
2348 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN:
2349 if (iface_param->iface_num & 0x1)
2350 break;
2351 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2352 init_fw_cb->ipv4_tcp_opts |=
2353 cpu_to_le16(TCPOPT_TIMESTAMP_ENABLE);
2354 else
2355 init_fw_cb->ipv4_tcp_opts &=
2356 cpu_to_le16(~TCPOPT_TIMESTAMP_ENABLE);
2357 break;
2358 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN:
2359 if (iface_param->iface_num & 0x1)
2360 break;
2361 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2362 init_fw_cb->ipv4_tcp_opts |=
2363 cpu_to_le16(TCPOPT_DNS_SERVER_IP_EN);
2364 else
2365 init_fw_cb->ipv4_tcp_opts &=
2366 cpu_to_le16(~TCPOPT_DNS_SERVER_IP_EN);
2367 break;
2368 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN:
2369 if (iface_param->iface_num & 0x1)
2370 break;
2371 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2372 init_fw_cb->ipv4_tcp_opts |=
2373 cpu_to_le16(TCPOPT_SLP_DA_INFO_EN);
2374 else
2375 init_fw_cb->ipv4_tcp_opts &=
2376 cpu_to_le16(~TCPOPT_SLP_DA_INFO_EN);
2377 break;
2378 case ISCSI_NET_PARAM_IPV4_TOS_EN:
2379 if (iface_param->iface_num & 0x1)
2380 break;
2381 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2382 init_fw_cb->ipv4_ip_opts |=
2383 cpu_to_le16(IPOPT_IPV4_TOS_EN);
2384 else
2385 init_fw_cb->ipv4_ip_opts &=
2386 cpu_to_le16(~IPOPT_IPV4_TOS_EN);
2387 break;
2388 case ISCSI_NET_PARAM_IPV4_TOS:
2389 if (iface_param->iface_num & 0x1)
2390 break;
2391 init_fw_cb->ipv4_tos = iface_param->value[0];
2392 break;
2393 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN:
2394 if (iface_param->iface_num & 0x1)
2395 break;
2396 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2397 init_fw_cb->ipv4_ip_opts |=
2398 cpu_to_le16(IPOPT_GRAT_ARP_EN);
2399 else
2400 init_fw_cb->ipv4_ip_opts &=
2401 cpu_to_le16(~IPOPT_GRAT_ARP_EN);
2402 break;
2403 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN:
2404 if (iface_param->iface_num & 0x1)
2405 break;
2406 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2407 init_fw_cb->ipv4_ip_opts |=
2408 cpu_to_le16(IPOPT_ALT_CID_EN);
2409 else
2410 init_fw_cb->ipv4_ip_opts &=
2411 cpu_to_le16(~IPOPT_ALT_CID_EN);
2412 break;
2413 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID:
2414 if (iface_param->iface_num & 0x1)
2415 break;
2416 memcpy(init_fw_cb->ipv4_dhcp_alt_cid, iface_param->value,
2417 (sizeof(init_fw_cb->ipv4_dhcp_alt_cid) - 1));
2418 init_fw_cb->ipv4_dhcp_alt_cid_len =
2419 strlen(init_fw_cb->ipv4_dhcp_alt_cid);
2420 break;
2421 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN:
2422 if (iface_param->iface_num & 0x1)
2423 break;
2424 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2425 init_fw_cb->ipv4_ip_opts |=
2426 cpu_to_le16(IPOPT_REQ_VID_EN);
2427 else
2428 init_fw_cb->ipv4_ip_opts &=
2429 cpu_to_le16(~IPOPT_REQ_VID_EN);
2430 break;
2431 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN:
2432 if (iface_param->iface_num & 0x1)
2433 break;
2434 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2435 init_fw_cb->ipv4_ip_opts |=
2436 cpu_to_le16(IPOPT_USE_VID_EN);
2437 else
2438 init_fw_cb->ipv4_ip_opts &=
2439 cpu_to_le16(~IPOPT_USE_VID_EN);
2440 break;
2441 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID:
2442 if (iface_param->iface_num & 0x1)
2443 break;
2444 memcpy(init_fw_cb->ipv4_dhcp_vid, iface_param->value,
2445 (sizeof(init_fw_cb->ipv4_dhcp_vid) - 1));
2446 init_fw_cb->ipv4_dhcp_vid_len =
2447 strlen(init_fw_cb->ipv4_dhcp_vid);
2448 break;
2449 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN:
2450 if (iface_param->iface_num & 0x1)
2451 break;
2452 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2453 init_fw_cb->ipv4_ip_opts |=
2454 cpu_to_le16(IPOPT_LEARN_IQN_EN);
2455 else
2456 init_fw_cb->ipv4_ip_opts &=
2457 cpu_to_le16(~IPOPT_LEARN_IQN_EN);
2458 break;
2459 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE:
2460 if (iface_param->iface_num & 0x1)
2461 break;
2462 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2463 init_fw_cb->ipv4_ip_opts |=
2464 cpu_to_le16(IPOPT_FRAGMENTATION_DISABLE);
2465 else
2466 init_fw_cb->ipv4_ip_opts &=
2467 cpu_to_le16(~IPOPT_FRAGMENTATION_DISABLE);
2468 break;
2469 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN:
2470 if (iface_param->iface_num & 0x1)
2471 break;
2472 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2473 init_fw_cb->ipv4_ip_opts |=
2474 cpu_to_le16(IPOPT_IN_FORWARD_EN);
2475 else
2476 init_fw_cb->ipv4_ip_opts &=
2477 cpu_to_le16(~IPOPT_IN_FORWARD_EN);
2478 break;
2479 case ISCSI_NET_PARAM_REDIRECT_EN:
2480 if (iface_param->iface_num & 0x1)
2481 break;
2482 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2483 init_fw_cb->ipv4_ip_opts |=
2484 cpu_to_le16(IPOPT_ARP_REDIRECT_EN);
2485 else
2486 init_fw_cb->ipv4_ip_opts &=
2487 cpu_to_le16(~IPOPT_ARP_REDIRECT_EN);
2488 break;
2489 case ISCSI_NET_PARAM_IPV4_TTL:
2490 if (iface_param->iface_num & 0x1)
2491 break;
2492 init_fw_cb->ipv4_ttl = iface_param->value[0];
2493 break;
d00efe3f
MC		 2494 default:
2495 ql4_printk(KERN_ERR, ha, "Unknown IPv4 param = %d\n",
2496 iface_param->param);
2497 break;
2498 }
2499}
2500
f8e93412
HZ		 2501static void qla4xxx_set_iscsi_param(struct scsi_qla_host *ha,
2502 struct iscsi_iface_param_info *iface_param,
2503 struct addr_ctrl_blk *init_fw_cb)
2504{
2505 switch (iface_param->param) {
2506 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO:
2507 if (iface_param->iface_num & 0x1)
2508 break;
2509 init_fw_cb->def_timeout =
2510 cpu_to_le16(*(uint16_t *)iface_param->value);
2511 break;
2512 case ISCSI_IFACE_PARAM_HDRDGST_EN:
2513 if (iface_param->iface_num & 0x1)
2514 break;
2515 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2516 init_fw_cb->iscsi_opts |=
2517 cpu_to_le16(ISCSIOPTS_HEADER_DIGEST_EN);
2518 else
2519 init_fw_cb->iscsi_opts &=
2520 cpu_to_le16(~ISCSIOPTS_HEADER_DIGEST_EN);
2521 break;
2522 case ISCSI_IFACE_PARAM_DATADGST_EN:
2523 if (iface_param->iface_num & 0x1)
2524 break;
2525 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2526 init_fw_cb->iscsi_opts |=
2527 cpu_to_le16(ISCSIOPTS_DATA_DIGEST_EN);
2528 else
2529 init_fw_cb->iscsi_opts &=
2530 cpu_to_le16(~ISCSIOPTS_DATA_DIGEST_EN);
2531 break;
2532 case ISCSI_IFACE_PARAM_IMM_DATA_EN:
2533 if (iface_param->iface_num & 0x1)
2534 break;
2535 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2536 init_fw_cb->iscsi_opts |=
2537 cpu_to_le16(ISCSIOPTS_IMMEDIATE_DATA_EN);
2538 else
2539 init_fw_cb->iscsi_opts &=
2540 cpu_to_le16(~ISCSIOPTS_IMMEDIATE_DATA_EN);
2541 break;
2542 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN:
2543 if (iface_param->iface_num & 0x1)
2544 break;
2545 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2546 init_fw_cb->iscsi_opts |=
2547 cpu_to_le16(ISCSIOPTS_INITIAL_R2T_EN);
2548 else
2549 init_fw_cb->iscsi_opts &=
2550 cpu_to_le16(~ISCSIOPTS_INITIAL_R2T_EN);
2551 break;
2552 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN:
2553 if (iface_param->iface_num & 0x1)
2554 break;
2555 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2556 init_fw_cb->iscsi_opts |=
2557 cpu_to_le16(ISCSIOPTS_DATA_SEQ_INORDER_EN);
2558 else
2559 init_fw_cb->iscsi_opts &=
2560 cpu_to_le16(~ISCSIOPTS_DATA_SEQ_INORDER_EN);
2561 break;
2562 case ISCSI_IFACE_PARAM_PDU_INORDER_EN:
2563 if (iface_param->iface_num & 0x1)
2564 break;
2565 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2566 init_fw_cb->iscsi_opts |=
2567 cpu_to_le16(ISCSIOPTS_DATA_PDU_INORDER_EN);
2568 else
2569 init_fw_cb->iscsi_opts &=
2570 cpu_to_le16(~ISCSIOPTS_DATA_PDU_INORDER_EN);
2571 break;
2572 case ISCSI_IFACE_PARAM_ERL:
2573 if (iface_param->iface_num & 0x1)
2574 break;
2575 init_fw_cb->iscsi_opts &= cpu_to_le16(~ISCSIOPTS_ERL);
2576 init_fw_cb->iscsi_opts |= cpu_to_le16(iface_param->value[0] &
2577 ISCSIOPTS_ERL);
2578 break;
2579 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH:
2580 if (iface_param->iface_num & 0x1)
2581 break;
2582 init_fw_cb->iscsi_max_pdu_size =
2583 cpu_to_le32(*(uint32_t *)iface_param->value) /
2584 BYTE_UNITS;
2585 break;
2586 case ISCSI_IFACE_PARAM_FIRST_BURST:
2587 if (iface_param->iface_num & 0x1)
2588 break;
2589 init_fw_cb->iscsi_fburst_len =
2590 cpu_to_le32(*(uint32_t *)iface_param->value) /
2591 BYTE_UNITS;
2592 break;
2593 case ISCSI_IFACE_PARAM_MAX_R2T:
2594 if (iface_param->iface_num & 0x1)
2595 break;
2596 init_fw_cb->iscsi_max_outstnd_r2t =
2597 cpu_to_le16(*(uint16_t *)iface_param->value);
2598 break;
2599 case ISCSI_IFACE_PARAM_MAX_BURST:
2600 if (iface_param->iface_num & 0x1)
2601 break;
2602 init_fw_cb->iscsi_max_burst_len =
2603 cpu_to_le32(*(uint32_t *)iface_param->value) /
2604 BYTE_UNITS;
2605 break;
2606 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN:
2607 if (iface_param->iface_num & 0x1)
2608 break;
2609 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2610 init_fw_cb->iscsi_opts |=
2611 cpu_to_le16(ISCSIOPTS_CHAP_AUTH_EN);
2612 else
2613 init_fw_cb->iscsi_opts &=
2614 cpu_to_le16(~ISCSIOPTS_CHAP_AUTH_EN);
2615 break;
2616 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN:
2617 if (iface_param->iface_num & 0x1)
2618 break;
2619 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2620 init_fw_cb->iscsi_opts |=
2621 cpu_to_le16(ISCSIOPTS_BIDI_CHAP_EN);
2622 else
2623 init_fw_cb->iscsi_opts &=
2624 cpu_to_le16(~ISCSIOPTS_BIDI_CHAP_EN);
2625 break;
2626 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL:
2627 if (iface_param->iface_num & 0x1)
2628 break;
2629 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2630 init_fw_cb->iscsi_opts |=
2631 cpu_to_le16(ISCSIOPTS_DISCOVERY_AUTH_EN);
2632 else
2633 init_fw_cb->iscsi_opts &=
2634 cpu_to_le16(~ISCSIOPTS_DISCOVERY_AUTH_EN);
2635 break;
2636 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN:
2637 if (iface_param->iface_num & 0x1)
2638 break;
2639 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2640 init_fw_cb->iscsi_opts |=
2641 cpu_to_le16(ISCSIOPTS_DISCOVERY_LOGOUT_EN);
2642 else
2643 init_fw_cb->iscsi_opts &=
2644 cpu_to_le16(~ISCSIOPTS_DISCOVERY_LOGOUT_EN);
2645 break;
2646 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN:
2647 if (iface_param->iface_num & 0x1)
2648 break;
2649 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2650 init_fw_cb->iscsi_opts |=
2651 cpu_to_le16(ISCSIOPTS_STRICT_LOGIN_COMP_EN);
2652 else
2653 init_fw_cb->iscsi_opts &=
2654 cpu_to_le16(~ISCSIOPTS_STRICT_LOGIN_COMP_EN);
2655 break;
2656 default:
2657 ql4_printk(KERN_ERR, ha, "Unknown iscsi param = %d\n",
2658 iface_param->param);
2659 break;
2660 }
2661}
2662
d00efe3f
MC		 2663static void
2664qla4xxx_initcb_to_acb(struct addr_ctrl_blk *init_fw_cb)
2665{
2666 struct addr_ctrl_blk_def *acb;
2667 acb = (struct addr_ctrl_blk_def *)init_fw_cb;
2668 memset(acb->reserved1, 0, sizeof(acb->reserved1));
2669 memset(acb->reserved2, 0, sizeof(acb->reserved2));
2670 memset(acb->reserved3, 0, sizeof(acb->reserved3));
2671 memset(acb->reserved4, 0, sizeof(acb->reserved4));
2672 memset(acb->reserved5, 0, sizeof(acb->reserved5));
2673 memset(acb->reserved6, 0, sizeof(acb->reserved6));
2674 memset(acb->reserved7, 0, sizeof(acb->reserved7));
2675 memset(acb->reserved8, 0, sizeof(acb->reserved8));
2676 memset(acb->reserved9, 0, sizeof(acb->reserved9));
2677 memset(acb->reserved10, 0, sizeof(acb->reserved10));
2678 memset(acb->reserved11, 0, sizeof(acb->reserved11));
2679 memset(acb->reserved12, 0, sizeof(acb->reserved12));
2680 memset(acb->reserved13, 0, sizeof(acb->reserved13));
2681 memset(acb->reserved14, 0, sizeof(acb->reserved14));
2682 memset(acb->reserved15, 0, sizeof(acb->reserved15));
2683}
2684
2685static int
00c31889 2686qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data, uint32_t len)
d00efe3f
MC		 2687{
2688 struct scsi_qla_host *ha = to_qla_host(shost);
2689 int rval = 0;
2690 struct iscsi_iface_param_info *iface_param = NULL;
2691 struct addr_ctrl_blk *init_fw_cb = NULL;
2692 dma_addr_t init_fw_cb_dma;
2693 uint32_t mbox_cmd[MBOX_REG_COUNT];
2694 uint32_t mbox_sts[MBOX_REG_COUNT];
00c31889
MC		 2695 uint32_t rem = len;
2696 struct nlattr *attr;
d00efe3f
MC		 2697
2698 init_fw_cb = dma_alloc_coherent(&ha->pdev->dev,
2699 sizeof(struct addr_ctrl_blk),
2700 &init_fw_cb_dma, GFP_KERNEL);
2701 if (!init_fw_cb) {
2702 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc init_cb\n",
2703 __func__);
2704 return -ENOMEM;
2705 }
2706
2707 memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk));
2708 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
2709 memset(&mbox_sts, 0, sizeof(mbox_sts));
2710
2711 if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma)) {
2712 ql4_printk(KERN_ERR, ha, "%s: get ifcb failed\n", __func__);
2713 rval = -EIO;
2714 goto exit_init_fw_cb;
2715 }
2716
00c31889
MC		 2717 nla_for_each_attr(attr, data, len, rem) {
2718 iface_param = nla_data(attr);
d00efe3f 2719
f8e93412
HZ		 2720 if (iface_param->param_type == ISCSI_NET_PARAM) {
2721 switch (iface_param->iface_type) {
2722 case ISCSI_IFACE_TYPE_IPV4:
2723 switch (iface_param->iface_num) {
2724 case 0:
2725 qla4xxx_set_ipv4(ha, iface_param,
2726 init_fw_cb);
2727 break;
2728 default:
d00efe3f 2729 /* Cannot have more than one IPv4 interface */
f8e93412
HZ		 2730 ql4_printk(KERN_ERR, ha,
2731 "Invalid IPv4 iface number = %d\n",
2732 iface_param->iface_num);
2733 break;
2734 }
d00efe3f 2735 break;
f8e93412
HZ		 2736 case ISCSI_IFACE_TYPE_IPV6:
2737 switch (iface_param->iface_num) {
2738 case 0:
2739 case 1:
2740 qla4xxx_set_ipv6(ha, iface_param,
2741 init_fw_cb);
2742 break;
2743 default:
2744 /* Cannot have more than two IPv6 interface */
2745 ql4_printk(KERN_ERR, ha,
2746 "Invalid IPv6 iface number = %d\n",
2747 iface_param->iface_num);
2748 break;
2749 }
d00efe3f
MC		 2750 break;
2751 default:
f8e93412
HZ		 2752 ql4_printk(KERN_ERR, ha,
2753 "Invalid iface type\n");
d00efe3f
MC		 2754 break;
2755 }
f8e93412
HZ		 2756 } else if (iface_param->param_type == ISCSI_IFACE_PARAM) {
2757 qla4xxx_set_iscsi_param(ha, iface_param,
2758 init_fw_cb);
2759 } else {
2760 continue;
d00efe3f 2761 }
d00efe3f
MC		 2762 }
2763
2764 init_fw_cb->cookie = cpu_to_le32(0x11BEAD5A);
2765
2766 rval = qla4xxx_set_flash(ha, init_fw_cb_dma, FLASH_SEGMENT_IFCB,
2767 sizeof(struct addr_ctrl_blk),
2768 FLASH_OPT_RMW_COMMIT);
2769 if (rval != QLA_SUCCESS) {
2770 ql4_printk(KERN_ERR, ha, "%s: set flash mbx failed\n",
2771 __func__);
2772 rval = -EIO;
2773 goto exit_init_fw_cb;
2774 }
2775
ce505f9d
VC		 2776 rval = qla4xxx_disable_acb(ha);
2777 if (rval != QLA_SUCCESS) {
2778 ql4_printk(KERN_ERR, ha, "%s: disable acb mbx failed\n",
2779 __func__);
2780 rval = -EIO;
2781 goto exit_init_fw_cb;
2782 }
2783
2784 wait_for_completion_timeout(&ha->disable_acb_comp,
2785 DISABLE_ACB_TOV * HZ);
d00efe3f
MC		 2786
2787 qla4xxx_initcb_to_acb(init_fw_cb);
2788
2789 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma);
2790 if (rval != QLA_SUCCESS) {
2791 ql4_printk(KERN_ERR, ha, "%s: set acb mbx failed\n",
2792 __func__);
2793 rval = -EIO;
2794 goto exit_init_fw_cb;
2795 }
2796
2797 memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk));
2798 qla4xxx_update_local_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb,
2799 init_fw_cb_dma);
2800
2801exit_init_fw_cb:
2802 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk),
2803 init_fw_cb, init_fw_cb_dma);
2804
2805 return rval;
2806}
2807
fca9f04d
MC		 2808static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess,
2809 enum iscsi_param param, char *buf)
2810{
2811 struct iscsi_session *sess = cls_sess->dd_data;
2812 struct ddb_entry *ddb_entry = sess->dd_data;
2813 struct scsi_qla_host *ha = ddb_entry->ha;
97c2730c
AC		 2814 struct iscsi_cls_conn *cls_conn = ddb_entry->conn;
2815 struct ql4_chap_table chap_tbl;
fca9f04d
MC		 2816 int rval, len;
2817 uint16_t idx;
2818
97c2730c 2819 memset(&chap_tbl, 0, sizeof(chap_tbl));
fca9f04d
MC		 2820 switch (param) {
2821 case ISCSI_PARAM_CHAP_IN_IDX:
2822 rval = qla4xxx_get_chap_index(ha, sess->username_in,
2823 sess->password_in, BIDI_CHAP,
2824 &idx);
2825 if (rval)
c7a5e0d0
MR		 2826 len = sprintf(buf, "\n");
2827 else
2828 len = sprintf(buf, "%hu\n", idx);
fca9f04d
MC		 2829 break;
2830 case ISCSI_PARAM_CHAP_OUT_IDX:
97c2730c
AC		 2831 if (ddb_entry->ddb_type == FLASH_DDB) {
2832 if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) {
2833 idx = ddb_entry->chap_tbl_idx;
2834 rval = QLA_SUCCESS;
2835 } else {
2836 rval = QLA_ERROR;
2837 }
2838 } else {
2839 rval = qla4xxx_get_chap_index(ha, sess->username,
2840 sess->password,
2841 LOCAL_CHAP, &idx);
2842 }
fca9f04d 2843 if (rval)
c7a5e0d0
MR		 2844 len = sprintf(buf, "\n");
2845 else
2846 len = sprintf(buf, "%hu\n", idx);
fca9f04d 2847 break;
97c2730c
AC		 2848 case ISCSI_PARAM_USERNAME:
2849 case ISCSI_PARAM_PASSWORD:
2850 /* First, populate session username and password for FLASH DDB,
2851 * if not already done. This happens when session login fails
2852 * for a FLASH DDB.
2853 */
2854 if (ddb_entry->ddb_type == FLASH_DDB &&
2855 ddb_entry->chap_tbl_idx != INVALID_ENTRY &&
2856 !sess->username && !sess->password) {
2857 idx = ddb_entry->chap_tbl_idx;
2858 rval = qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name,
2859 chap_tbl.secret,
2860 idx);
2861 if (!rval) {
2862 iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME,
2863 (char *)chap_tbl.name,
2864 strlen((char *)chap_tbl.name));
2865 iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD,
2866 (char *)chap_tbl.secret,
2867 chap_tbl.secret_len);
2868 }
2869 }
2870 /* allow fall-through */
fca9f04d
MC		 2871 default:
2872 return iscsi_session_get_param(cls_sess, param, buf);
2873 }
2874
2875 return len;
2876}
2877
b3a271a9 2878static int qla4xxx_conn_get_param(struct iscsi_cls_conn *cls_conn,
afaf5a2d
DS		 2879 enum iscsi_param param, char *buf)
2880{
b3a271a9
MR		 2881 struct iscsi_conn *conn;
2882 struct qla_conn *qla_conn;
2883 struct sockaddr *dst_addr;
afaf5a2d 2884
b3a271a9
MR		 2885 conn = cls_conn->dd_data;
2886 qla_conn = conn->dd_data;
d46bdeb1 2887 dst_addr = (struct sockaddr *)&qla_conn->qla_ep->dst_addr;
afaf5a2d
DS		 2888
2889 switch (param) {
2890 case ISCSI_PARAM_CONN_PORT:
afaf5a2d 2891 case ISCSI_PARAM_CONN_ADDRESS:
b3a271a9
MR		 2892 return iscsi_conn_get_addr_param((struct sockaddr_storage *)
2893 dst_addr, param, buf);
afaf5a2d 2894 default:
b3a271a9 2895 return iscsi_conn_get_param(cls_conn, param, buf);
afaf5a2d 2896 }
afaf5a2d
DS		 2897}
2898
13483730
MC		 2899int qla4xxx_get_ddb_index(struct scsi_qla_host *ha, uint16_t *ddb_index)
2900{
2901 uint32_t mbx_sts = 0;
2902 uint16_t tmp_ddb_index;
2903 int ret;
2904
2905get_ddb_index:
2906 tmp_ddb_index = find_first_zero_bit(ha->ddb_idx_map, MAX_DDB_ENTRIES);
2907
2908 if (tmp_ddb_index >= MAX_DDB_ENTRIES) {
2909 DEBUG2(ql4_printk(KERN_INFO, ha,
2910 "Free DDB index not available\n"));
2911 ret = QLA_ERROR;
2912 goto exit_get_ddb_index;
2913 }
2914
2915 if (test_and_set_bit(tmp_ddb_index, ha->ddb_idx_map))
2916 goto get_ddb_index;
2917
2918 DEBUG2(ql4_printk(KERN_INFO, ha,
2919 "Found a free DDB index at %d\n", tmp_ddb_index));
2920 ret = qla4xxx_req_ddb_entry(ha, tmp_ddb_index, &mbx_sts);
2921 if (ret == QLA_ERROR) {
2922 if (mbx_sts == MBOX_STS_COMMAND_ERROR) {
2923 ql4_printk(KERN_INFO, ha,
2924 "DDB index = %d not available trying next\n",
2925 tmp_ddb_index);
2926 goto get_ddb_index;
2927 }
2928 DEBUG2(ql4_printk(KERN_INFO, ha,
2929 "Free FW DDB not available\n"));
2930 }
2931
2932 *ddb_index = tmp_ddb_index;
2933
2934exit_get_ddb_index:
2935 return ret;
2936}
2937
2938static int qla4xxx_match_ipaddress(struct scsi_qla_host *ha,
2939 struct ddb_entry *ddb_entry,
2940 char *existing_ipaddr,
2941 char *user_ipaddr)
2942{
2943 uint8_t dst_ipaddr[IPv6_ADDR_LEN];
2944 char formatted_ipaddr[DDB_IPADDR_LEN];
2945 int status = QLA_SUCCESS, ret = 0;
2946
2947 if (ddb_entry->fw_ddb_entry.options & DDB_OPT_IPV6_DEVICE) {
2948 ret = in6_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr,
2949 '\0', NULL);
2950 if (ret == 0) {
2951 status = QLA_ERROR;
2952 goto out_match;
2953 }
2954 ret = sprintf(formatted_ipaddr, "%pI6", dst_ipaddr);
2955 } else {
2956 ret = in4_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr,
2957 '\0', NULL);
2958 if (ret == 0) {
2959 status = QLA_ERROR;
2960 goto out_match;
2961 }
2962 ret = sprintf(formatted_ipaddr, "%pI4", dst_ipaddr);
2963 }
2964
2965 if (strcmp(existing_ipaddr, formatted_ipaddr))
2966 status = QLA_ERROR;
2967
2968out_match:
2969 return status;
2970}
2971
2972static int qla4xxx_match_fwdb_session(struct scsi_qla_host *ha,
2973 struct iscsi_cls_conn *cls_conn)
2974{
2975 int idx = 0, max_ddbs, rval;
2976 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
2977 struct iscsi_session *sess, *existing_sess;
2978 struct iscsi_conn *conn, *existing_conn;
2979 struct ddb_entry *ddb_entry;
2980
2981 sess = cls_sess->dd_data;
2982 conn = cls_conn->dd_data;
2983
2984 if (sess->targetname == NULL ||
2985 conn->persistent_address == NULL ||
2986 conn->persistent_port == 0)
2987 return QLA_ERROR;
2988
2989 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
2990 MAX_DEV_DB_ENTRIES;
2991
2992 for (idx = 0; idx < max_ddbs; idx++) {
2993 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
2994 if (ddb_entry == NULL)
2995 continue;
2996
2997 if (ddb_entry->ddb_type != FLASH_DDB)
2998 continue;
2999
3000 existing_sess = ddb_entry->sess->dd_data;
3001 existing_conn = ddb_entry->conn->dd_data;
3002
3003 if (existing_sess->targetname == NULL ||
3004 existing_conn->persistent_address == NULL ||
3005 existing_conn->persistent_port == 0)
3006 continue;
3007
3008 DEBUG2(ql4_printk(KERN_INFO, ha,
3009 "IQN = %s User IQN = %s\n",
3010 existing_sess->targetname,
3011 sess->targetname));
3012
3013 DEBUG2(ql4_printk(KERN_INFO, ha,
3014 "IP = %s User IP = %s\n",
3015 existing_conn->persistent_address,
3016 conn->persistent_address));
3017
3018 DEBUG2(ql4_printk(KERN_INFO, ha,
3019 "Port = %d User Port = %d\n",
3020 existing_conn->persistent_port,
3021 conn->persistent_port));
3022
3023 if (strcmp(existing_sess->targetname, sess->targetname))
3024 continue;
3025 rval = qla4xxx_match_ipaddress(ha, ddb_entry,
3026 existing_conn->persistent_address,
3027 conn->persistent_address);
3028 if (rval == QLA_ERROR)
3029 continue;
3030 if (existing_conn->persistent_port != conn->persistent_port)
3031 continue;
3032 break;
3033 }
3034
3035 if (idx == max_ddbs)
3036 return QLA_ERROR;
3037
3038 DEBUG2(ql4_printk(KERN_INFO, ha,
3039 "Match found in fwdb sessions\n"));
3040 return QLA_SUCCESS;
3041}
3042
b3a271a9
MR		 3043static struct iscsi_cls_session *
3044qla4xxx_session_create(struct iscsi_endpoint *ep,
3045 uint16_t cmds_max, uint16_t qdepth,
3046 uint32_t initial_cmdsn)
3047{
3048 struct iscsi_cls_session *cls_sess;
3049 struct scsi_qla_host *ha;
3050 struct qla_endpoint *qla_ep;
3051 struct ddb_entry *ddb_entry;
13483730 3052 uint16_t ddb_index;
b3a271a9
MR		 3053 struct iscsi_session *sess;
3054 struct sockaddr *dst_addr;
3055 int ret;
3056
b3a271a9
MR		 3057 if (!ep) {
3058 printk(KERN_ERR "qla4xxx: missing ep.\n");
3059 return NULL;
3060 }
3061
3062 qla_ep = ep->dd_data;
3063 dst_addr = (struct sockaddr *)&qla_ep->dst_addr;
3064 ha = to_qla_host(qla_ep->host);
c343c5e0
VC		 3065 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__,
3066 ha->host_no));
736cf369 3067
13483730
MC		 3068 ret = qla4xxx_get_ddb_index(ha, &ddb_index);
3069 if (ret == QLA_ERROR)
b3a271a9 3070 return NULL;
b3a271a9
MR		 3071
3072 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, qla_ep->host,
3073 cmds_max, sizeof(struct ddb_entry),
3074 sizeof(struct ql4_task_data),
3075 initial_cmdsn, ddb_index);
3076 if (!cls_sess)
3077 return NULL;
3078
3079 sess = cls_sess->dd_data;
3080 ddb_entry = sess->dd_data;
3081 ddb_entry->fw_ddb_index = ddb_index;
3082 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE;
3083 ddb_entry->ha = ha;
3084 ddb_entry->sess = cls_sess;
13483730
MC		 3085 ddb_entry->unblock_sess = qla4xxx_unblock_ddb;
3086 ddb_entry->ddb_change = qla4xxx_ddb_change;
de2efea6 3087 clear_bit(DDB_CONN_CLOSE_FAILURE, &ddb_entry->flags);
b3a271a9
MR		 3088 cls_sess->recovery_tmo = ql4xsess_recovery_tmo;
3089 ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry;
3090 ha->tot_ddbs++;
3091
3092 return cls_sess;
3093}
3094
3095static void qla4xxx_session_destroy(struct iscsi_cls_session *cls_sess)
3096{
3097 struct iscsi_session *sess;
3098 struct ddb_entry *ddb_entry;
3099 struct scsi_qla_host *ha;
90599b62
MR		 3100 unsigned long flags, wtime;
3101 struct dev_db_entry *fw_ddb_entry = NULL;
3102 dma_addr_t fw_ddb_entry_dma;
3103 uint32_t ddb_state;
3104 int ret;
b3a271a9 3105
b3a271a9
MR		 3106 sess = cls_sess->dd_data;
3107 ddb_entry = sess->dd_data;
3108 ha = ddb_entry->ha;
c343c5e0
VC		 3109 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__,
3110 ha->host_no));
b3a271a9 3111
90599b62
MR		 3112 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3113 &fw_ddb_entry_dma, GFP_KERNEL);
3114 if (!fw_ddb_entry) {
3115 ql4_printk(KERN_ERR, ha,
3116 "%s: Unable to allocate dma buffer\n", __func__);
3117 goto destroy_session;
3118 }
3119
3120 wtime = jiffies + (HZ * LOGOUT_TOV);
3121 do {
3122 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
3123 fw_ddb_entry, fw_ddb_entry_dma,
3124 NULL, NULL, &ddb_state, NULL,
3125 NULL, NULL);
3126 if (ret == QLA_ERROR)
3127 goto destroy_session;
3128
3129 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) ||
3130 (ddb_state == DDB_DS_SESSION_FAILED))
3131 goto destroy_session;
3132
3133 schedule_timeout_uninterruptible(HZ);
3134 } while ((time_after(wtime, jiffies)));
3135
3136destroy_session:
736cf369 3137 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
de2efea6
NJ		 3138 if (test_and_clear_bit(DDB_CONN_CLOSE_FAILURE, &ddb_entry->flags))
3139 clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map);
b3a271a9
MR		 3140 spin_lock_irqsave(&ha->hardware_lock, flags);
3141 qla4xxx_free_ddb(ha, ddb_entry);
3142 spin_unlock_irqrestore(&ha->hardware_lock, flags);
90599b62 3143
b3a271a9 3144 iscsi_session_teardown(cls_sess);
90599b62
MR		 3145
3146 if (fw_ddb_entry)
3147 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3148 fw_ddb_entry, fw_ddb_entry_dma);
b3a271a9
MR		 3149}
3150
b3a271a9
MR		 3151static struct iscsi_cls_conn *
3152qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx)
3153{
3154 struct iscsi_cls_conn *cls_conn;
3155 struct iscsi_session *sess;
3156 struct ddb_entry *ddb_entry;
c343c5e0 3157 struct scsi_qla_host *ha;
b3a271a9 3158
b3a271a9
MR		 3159 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn),
3160 conn_idx);
c343c5e0
VC		 3161 if (!cls_conn) {
3162 pr_info("%s: Can not create connection for conn_idx = %u\n",
3163 __func__, conn_idx);
ff1d0319 3164 return NULL;
c343c5e0 3165 }
ff1d0319 3166
b3a271a9
MR		 3167 sess = cls_sess->dd_data;
3168 ddb_entry = sess->dd_data;
3169 ddb_entry->conn = cls_conn;
3170
c343c5e0
VC		 3171 ha = ddb_entry->ha;
3172 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: conn_idx = %u\n", __func__,
3173 conn_idx));
b3a271a9
MR		 3174 return cls_conn;
3175}
3176
3177static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session,
3178 struct iscsi_cls_conn *cls_conn,
3179 uint64_t transport_fd, int is_leading)
3180{
3181 struct iscsi_conn *conn;
3182 struct qla_conn *qla_conn;
3183 struct iscsi_endpoint *ep;
c343c5e0
VC		 3184 struct ddb_entry *ddb_entry;
3185 struct scsi_qla_host *ha;
3186 struct iscsi_session *sess;
3187
3188 sess = cls_session->dd_data;
3189 ddb_entry = sess->dd_data;
3190 ha = ddb_entry->ha;
b3a271a9 3191
c343c5e0
VC		 3192 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: sid = %d, cid = %d\n", __func__,
3193 cls_session->sid, cls_conn->cid));
b3a271a9
MR		 3194
3195 if (iscsi_conn_bind(cls_session, cls_conn, is_leading))
3196 return -EINVAL;
3197 ep = iscsi_lookup_endpoint(transport_fd);
3198 conn = cls_conn->dd_data;
3199 qla_conn = conn->dd_data;
3200 qla_conn->qla_ep = ep->dd_data;
3201 return 0;
3202}
3203
3204static int qla4xxx_conn_start(struct iscsi_cls_conn *cls_conn)
3205{
3206 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
3207 struct iscsi_session *sess;
3208 struct ddb_entry *ddb_entry;
3209 struct scsi_qla_host *ha;
13483730 3210 struct dev_db_entry *fw_ddb_entry = NULL;
b3a271a9 3211 dma_addr_t fw_ddb_entry_dma;
b3a271a9
MR		 3212 uint32_t mbx_sts = 0;
3213 int ret = 0;
3214 int status = QLA_SUCCESS;
3215
b3a271a9
MR		 3216 sess = cls_sess->dd_data;
3217 ddb_entry = sess->dd_data;
3218 ha = ddb_entry->ha;
c343c5e0
VC		 3219 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: sid = %d, cid = %d\n", __func__,
3220 cls_sess->sid, cls_conn->cid));
b3a271a9 3221
13483730
MC		 3222 /* Check if we have matching FW DDB, if yes then do not
3223 * login to this target. This could cause target to logout previous
3224 * connection
3225 */
3226 ret = qla4xxx_match_fwdb_session(ha, cls_conn);
3227 if (ret == QLA_SUCCESS) {
3228 ql4_printk(KERN_INFO, ha,
3229 "Session already exist in FW.\n");
3230 ret = -EEXIST;
3231 goto exit_conn_start;
3232 }
3233
b3a271a9
MR		 3234 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3235 &fw_ddb_entry_dma, GFP_KERNEL);
3236 if (!fw_ddb_entry) {
3237 ql4_printk(KERN_ERR, ha,
3238 "%s: Unable to allocate dma buffer\n", __func__);
13483730
MC		 3239 ret = -ENOMEM;
3240 goto exit_conn_start;
b3a271a9
MR		 3241 }
3242
3243 ret = qla4xxx_set_param_ddbentry(ha, ddb_entry, cls_conn, &mbx_sts);
3244 if (ret) {
3245 /* If iscsid is stopped and started then no need to do
3246 * set param again since ddb state will be already
3247 * active and FW does not allow set ddb to an
3248 * active session.
3249 */
3250 if (mbx_sts)
3251 if (ddb_entry->fw_ddb_device_state ==
f922da79 3252 DDB_DS_SESSION_ACTIVE) {
13483730 3253 ddb_entry->unblock_sess(ddb_entry->sess);
b3a271a9 3254 goto exit_set_param;
f922da79 3255 }
b3a271a9
MR		 3256
3257 ql4_printk(KERN_ERR, ha, "%s: Failed set param for index[%d]\n",
3258 __func__, ddb_entry->fw_ddb_index);
3259 goto exit_conn_start;
3260 }
3261
3262 status = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index);
3263 if (status == QLA_ERROR) {
0e7e8501
MR		 3264 ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__,
3265 sess->targetname);
b3a271a9
MR		 3266 ret = -EINVAL;
3267 goto exit_conn_start;
3268 }
3269
98270ab4
MR		 3270 if (ddb_entry->fw_ddb_device_state == DDB_DS_NO_CONNECTION_ACTIVE)
3271 ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS;
3272
3273 DEBUG2(printk(KERN_INFO "%s: DDB state [%d]\n", __func__,
3274 ddb_entry->fw_ddb_device_state));
b3a271a9
MR		 3275
3276exit_set_param:
b3a271a9
MR		 3277 ret = 0;
3278
3279exit_conn_start:
13483730
MC		 3280 if (fw_ddb_entry)
3281 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3282 fw_ddb_entry, fw_ddb_entry_dma);
b3a271a9
MR		 3283 return ret;
3284}
3285
3286static void qla4xxx_conn_destroy(struct iscsi_cls_conn *cls_conn)
3287{
3288 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
3289 struct iscsi_session *sess;
3290 struct scsi_qla_host *ha;
3291 struct ddb_entry *ddb_entry;
3292 int options;
3293
b3a271a9
MR		 3294 sess = cls_sess->dd_data;
3295 ddb_entry = sess->dd_data;
3296 ha = ddb_entry->ha;
c343c5e0
VC		 3297 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: cid = %d\n", __func__,
3298 cls_conn->cid));
b3a271a9
MR		 3299
3300 options = LOGOUT_OPTION_CLOSE_SESSION;
3301 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR)
3302 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__);
b3a271a9
MR		 3303}
3304
3305static void qla4xxx_task_work(struct work_struct *wdata)
3306{
3307 struct ql4_task_data *task_data;
3308 struct scsi_qla_host *ha;
3309 struct passthru_status *sts;
3310 struct iscsi_task *task;
3311 struct iscsi_hdr *hdr;
3312 uint8_t *data;
3313 uint32_t data_len;
3314 struct iscsi_conn *conn;
3315 int hdr_len;
3316 itt_t itt;
3317
3318 task_data = container_of(wdata, struct ql4_task_data, task_work);
3319 ha = task_data->ha;
3320 task = task_data->task;
3321 sts = &task_data->sts;
3322 hdr_len = sizeof(struct iscsi_hdr);
3323
3324 DEBUG3(printk(KERN_INFO "Status returned\n"));
3325 DEBUG3(qla4xxx_dump_buffer(sts, 64));
3326 DEBUG3(printk(KERN_INFO "Response buffer"));
3327 DEBUG3(qla4xxx_dump_buffer(task_data->resp_buffer, 64));
3328
3329 conn = task->conn;
3330
3331 switch (sts->completionStatus) {
3332 case PASSTHRU_STATUS_COMPLETE:
3333 hdr = (struct iscsi_hdr *)task_data->resp_buffer;
3334 /* Assign back the itt in hdr, until we use the PREASSIGN_TAG */
3335 itt = sts->handle;
3336 hdr->itt = itt;
3337 data = task_data->resp_buffer + hdr_len;
3338 data_len = task_data->resp_len - hdr_len;
3339 iscsi_complete_pdu(conn, hdr, data, data_len);
3340 break;
3341 default:
3342 ql4_printk(KERN_ERR, ha, "Passthru failed status = 0x%x\n",
3343 sts->completionStatus);
3344 break;
3345 }
3346 return;
3347}
3348
3349static int qla4xxx_alloc_pdu(struct iscsi_task *task, uint8_t opcode)
3350{
3351 struct ql4_task_data *task_data;
3352 struct iscsi_session *sess;
3353 struct ddb_entry *ddb_entry;
3354 struct scsi_qla_host *ha;
3355 int hdr_len;
3356
3357 sess = task->conn->session;
3358 ddb_entry = sess->dd_data;
3359 ha = ddb_entry->ha;
3360 task_data = task->dd_data;
3361 memset(task_data, 0, sizeof(struct ql4_task_data));
3362
3363 if (task->sc) {
3364 ql4_printk(KERN_INFO, ha,
3365 "%s: SCSI Commands not implemented\n", __func__);
3366 return -EINVAL;
3367 }
3368
3369 hdr_len = sizeof(struct iscsi_hdr);
3370 task_data->ha = ha;
3371 task_data->task = task;
3372
3373 if (task->data_count) {
3374 task_data->data_dma = dma_map_single(&ha->pdev->dev, task->data,
3375 task->data_count,
3376 PCI_DMA_TODEVICE);
3377 }
3378
3379 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n",
3380 __func__, task->conn->max_recv_dlength, hdr_len));
3381
69ca216e 3382 task_data->resp_len = task->conn->max_recv_dlength + hdr_len;
b3a271a9
MR		 3383 task_data->resp_buffer = dma_alloc_coherent(&ha->pdev->dev,
3384 task_data->resp_len,
3385 &task_data->resp_dma,
3386 GFP_ATOMIC);
3387 if (!task_data->resp_buffer)
3388 goto exit_alloc_pdu;
3389
69ca216e 3390 task_data->req_len = task->data_count + hdr_len;
b3a271a9 3391 task_data->req_buffer = dma_alloc_coherent(&ha->pdev->dev,
69ca216e 3392 task_data->req_len,
b3a271a9
MR		 3393 &task_data->req_dma,
3394 GFP_ATOMIC);
3395 if (!task_data->req_buffer)
3396 goto exit_alloc_pdu;
3397
3398 task->hdr = task_data->req_buffer;
3399
3400 INIT_WORK(&task_data->task_work, qla4xxx_task_work);
3401
3402 return 0;
3403
3404exit_alloc_pdu:
3405 if (task_data->resp_buffer)
3406 dma_free_coherent(&ha->pdev->dev, task_data->resp_len,
3407 task_data->resp_buffer, task_data->resp_dma);
3408
3409 if (task_data->req_buffer)
69ca216e 3410 dma_free_coherent(&ha->pdev->dev, task_data->req_len,
b3a271a9
MR		 3411 task_data->req_buffer, task_data->req_dma);
3412 return -ENOMEM;
3413}
3414
3415static void qla4xxx_task_cleanup(struct iscsi_task *task)
3416{
3417 struct ql4_task_data *task_data;
3418 struct iscsi_session *sess;
3419 struct ddb_entry *ddb_entry;
3420 struct scsi_qla_host *ha;
3421 int hdr_len;
3422
3423 hdr_len = sizeof(struct iscsi_hdr);
3424 sess = task->conn->session;
3425 ddb_entry = sess->dd_data;
3426 ha = ddb_entry->ha;
3427 task_data = task->dd_data;
3428
3429 if (task->data_count) {
3430 dma_unmap_single(&ha->pdev->dev, task_data->data_dma,
3431 task->data_count, PCI_DMA_TODEVICE);
3432 }
3433
3434 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n",
3435 __func__, task->conn->max_recv_dlength, hdr_len));
3436
3437 dma_free_coherent(&ha->pdev->dev, task_data->resp_len,
3438 task_data->resp_buffer, task_data->resp_dma);
69ca216e 3439 dma_free_coherent(&ha->pdev->dev, task_data->req_len,
b3a271a9
MR		 3440 task_data->req_buffer, task_data->req_dma);
3441 return;
3442}
3443
3444static int qla4xxx_task_xmit(struct iscsi_task *task)
3445{
3446 struct scsi_cmnd *sc = task->sc;
3447 struct iscsi_session *sess = task->conn->session;
3448 struct ddb_entry *ddb_entry = sess->dd_data;
3449 struct scsi_qla_host *ha = ddb_entry->ha;
3450
3451 if (!sc)
3452 return qla4xxx_send_passthru0(task);
3453
3454 ql4_printk(KERN_INFO, ha, "%s: scsi cmd xmit not implemented\n",
3455 __func__);
3456 return -ENOSYS;
3457}
3458
1e9e2be3
AC		 3459static int qla4xxx_copy_from_fwddb_param(struct iscsi_bus_flash_session *sess,
3460 struct iscsi_bus_flash_conn *conn,
3461 struct dev_db_entry *fw_ddb_entry)
3462{
3463 unsigned long options = 0;
3464 int rc = 0;
3465
3466 options = le16_to_cpu(fw_ddb_entry->options);
3467 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options);
3468 if (test_bit(OPT_IPV6_DEVICE, &options)) {
c962c18b
AC		 3469 rc = iscsi_switch_str_param(&sess->portal_type,
3470 PORTAL_TYPE_IPV6);
1e9e2be3
AC		 3471 if (rc)
3472 goto exit_copy;
3473 } else {
c962c18b
AC		 3474 rc = iscsi_switch_str_param(&sess->portal_type,
3475 PORTAL_TYPE_IPV4);
1e9e2be3
AC		 3476 if (rc)
3477 goto exit_copy;
3478 }
3479
3480 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE,
3481 &options);
3482 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options);
3483 sess->entry_state = test_bit(OPT_ENTRY_STATE, &options);
3484
3485 options = le16_to_cpu(fw_ddb_entry->iscsi_options);
3486 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options);
3487 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options);
3488 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options);
3489 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options);
3490 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER,
3491 &options);
3492 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options);
3493 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options);
3494 conn->snack_req_en = test_bit(ISCSIOPT_SNACK_REQ_EN, &options);
3495 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN,
3496 &options);
3497 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options);
3498 sess->discovery_auth_optional =
3499 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options);
3500 if (test_bit(ISCSIOPT_ERL1, &options))
3501 sess->erl |= BIT_1;
3502 if (test_bit(ISCSIOPT_ERL0, &options))
3503 sess->erl |= BIT_0;
3504
3505 options = le16_to_cpu(fw_ddb_entry->tcp_options);
3506 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options);
3507 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options);
3508 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options);
3509 if (test_bit(TCPOPT_TIMER_SCALE3, &options))
3510 conn->tcp_timer_scale |= BIT_3;
3511 if (test_bit(TCPOPT_TIMER_SCALE2, &options))
3512 conn->tcp_timer_scale |= BIT_2;
3513 if (test_bit(TCPOPT_TIMER_SCALE1, &options))
3514 conn->tcp_timer_scale |= BIT_1;
3515
3516 conn->tcp_timer_scale >>= 1;
3517 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options);
3518
3519 options = le16_to_cpu(fw_ddb_entry->ip_options);
3520 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options);
3521
3522 conn->max_recv_dlength = BYTE_UNITS *
3523 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len);
3524 conn->max_xmit_dlength = BYTE_UNITS *
3525 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len);
3526 sess->first_burst = BYTE_UNITS *
3527 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len);
3528 sess->max_burst = BYTE_UNITS *
3529 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len);
3530 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t);
3531 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
3532 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain);
3533 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
3534 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss);
3535 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf;
3536 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf;
3537 conn->ipv6_flow_label = le16_to_cpu(fw_ddb_entry->ipv6_flow_lbl);
3538 conn->keepalive_timeout = le16_to_cpu(fw_ddb_entry->ka_timeout);
3539 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port);
3540 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn);
3541 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn);
3542 sess->discovery_parent_idx = le16_to_cpu(fw_ddb_entry->ddb_link);
3543 sess->discovery_parent_type = le16_to_cpu(fw_ddb_entry->ddb_link);
3544 sess->chap_out_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
3545 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid);
3546
3547 sess->default_taskmgmt_timeout =
3548 le16_to_cpu(fw_ddb_entry->def_timeout);
3549 conn->port = le16_to_cpu(fw_ddb_entry->port);
3550
3551 options = le16_to_cpu(fw_ddb_entry->options);
3552 conn->ipaddress = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL);
3553 if (!conn->ipaddress) {
3554 rc = -ENOMEM;
3555 goto exit_copy;
3556 }
3557
3558 conn->redirect_ipaddr = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL);
3559 if (!conn->redirect_ipaddr) {
3560 rc = -ENOMEM;
3561 goto exit_copy;
3562 }
3563
3564 memcpy(conn->ipaddress, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN);
3565 memcpy(conn->redirect_ipaddr, fw_ddb_entry->tgt_addr, IPv6_ADDR_LEN);
3566
3567 if (test_bit(OPT_IPV6_DEVICE, &options)) {
3568 conn->ipv6_traffic_class = fw_ddb_entry->ipv4_tos;
3569
3d30b439
BT		 3570 conn->link_local_ipv6_addr = kmemdup(
3571 fw_ddb_entry->link_local_ipv6_addr,
3572 IPv6_ADDR_LEN, GFP_KERNEL);
1e9e2be3
AC		 3573 if (!conn->link_local_ipv6_addr) {
3574 rc = -ENOMEM;
3575 goto exit_copy;
3576 }
1e9e2be3
AC		 3577 } else {
3578 conn->ipv4_tos = fw_ddb_entry->ipv4_tos;
3579 }
3580
3581 if (fw_ddb_entry->iscsi_name[0]) {
3582 rc = iscsi_switch_str_param(&sess->targetname,
3583 (char *)fw_ddb_entry->iscsi_name);
3584 if (rc)
3585 goto exit_copy;
3586 }
3587
3588 if (fw_ddb_entry->iscsi_alias[0]) {
3589 rc = iscsi_switch_str_param(&sess->targetalias,
3590 (char *)fw_ddb_entry->iscsi_alias);
3591 if (rc)
3592 goto exit_copy;
3593 }
3594
3595 COPY_ISID(sess->isid, fw_ddb_entry->isid);
3596
3597exit_copy:
3598 return rc;
3599}
3600
3601static int qla4xxx_copy_to_fwddb_param(struct iscsi_bus_flash_session *sess,
3602 struct iscsi_bus_flash_conn *conn,
3603 struct dev_db_entry *fw_ddb_entry)
3604{
3605 uint16_t options;
3606 int rc = 0;
3607
3608 options = le16_to_cpu(fw_ddb_entry->options);
3609 SET_BITVAL(conn->is_fw_assigned_ipv6, options, BIT_11);
c962c18b 3610 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4))
1e9e2be3
AC		 3611 options |= BIT_8;
3612 else
3613 options &= ~BIT_8;
3614
3615 SET_BITVAL(sess->auto_snd_tgt_disable, options, BIT_6);
3616 SET_BITVAL(sess->discovery_sess, options, BIT_4);
3617 SET_BITVAL(sess->entry_state, options, BIT_3);
3618 fw_ddb_entry->options = cpu_to_le16(options);
3619
3620 options = le16_to_cpu(fw_ddb_entry->iscsi_options);
3621 SET_BITVAL(conn->hdrdgst_en, options, BIT_13);
3622 SET_BITVAL(conn->datadgst_en, options, BIT_12);
3623 SET_BITVAL(sess->imm_data_en, options, BIT_11);
3624 SET_BITVAL(sess->initial_r2t_en, options, BIT_10);
3625 SET_BITVAL(sess->dataseq_inorder_en, options, BIT_9);
3626 SET_BITVAL(sess->pdu_inorder_en, options, BIT_8);
3627 SET_BITVAL(sess->chap_auth_en, options, BIT_7);
3628 SET_BITVAL(conn->snack_req_en, options, BIT_6);
3629 SET_BITVAL(sess->discovery_logout_en, options, BIT_5);
3630 SET_BITVAL(sess->bidi_chap_en, options, BIT_4);
3631 SET_BITVAL(sess->discovery_auth_optional, options, BIT_3);
3632 SET_BITVAL(sess->erl & BIT_1, options, BIT_1);
3633 SET_BITVAL(sess->erl & BIT_0, options, BIT_0);
3634 fw_ddb_entry->iscsi_options = cpu_to_le16(options);
3635
3636 options = le16_to_cpu(fw_ddb_entry->tcp_options);
3637 SET_BITVAL(conn->tcp_timestamp_stat, options, BIT_6);
3638 SET_BITVAL(conn->tcp_nagle_disable, options, BIT_5);
3639 SET_BITVAL(conn->tcp_wsf_disable, options, BIT_4);
3640 SET_BITVAL(conn->tcp_timer_scale & BIT_2, options, BIT_3);
3641 SET_BITVAL(conn->tcp_timer_scale & BIT_1, options, BIT_2);
3642 SET_BITVAL(conn->tcp_timer_scale & BIT_0, options, BIT_1);
3643 SET_BITVAL(conn->tcp_timestamp_en, options, BIT_0);
3644 fw_ddb_entry->tcp_options = cpu_to_le16(options);
3645
3646 options = le16_to_cpu(fw_ddb_entry->ip_options);
3647 SET_BITVAL(conn->fragment_disable, options, BIT_4);
3648 fw_ddb_entry->ip_options = cpu_to_le16(options);
3649
3650 fw_ddb_entry->iscsi_max_outsnd_r2t = cpu_to_le16(sess->max_r2t);
3651 fw_ddb_entry->iscsi_max_rcv_data_seg_len =
3652 cpu_to_le16(conn->max_recv_dlength / BYTE_UNITS);
3653 fw_ddb_entry->iscsi_max_snd_data_seg_len =
3654 cpu_to_le16(conn->max_xmit_dlength / BYTE_UNITS);
3655 fw_ddb_entry->iscsi_first_burst_len =
3656 cpu_to_le16(sess->first_burst / BYTE_UNITS);
3657 fw_ddb_entry->iscsi_max_burst_len = cpu_to_le16(sess->max_burst /
3658 BYTE_UNITS);
3659 fw_ddb_entry->iscsi_def_time2wait = cpu_to_le16(sess->time2wait);
3660 fw_ddb_entry->iscsi_def_time2retain = cpu_to_le16(sess->time2retain);
3661 fw_ddb_entry->tgt_portal_grp = cpu_to_le16(sess->tpgt);
3662 fw_ddb_entry->mss = cpu_to_le16(conn->max_segment_size);
fbcd4836
AC		 3663 fw_ddb_entry->tcp_xmt_wsf = (uint8_t) cpu_to_le32(conn->tcp_xmit_wsf);
3664 fw_ddb_entry->tcp_rcv_wsf = (uint8_t) cpu_to_le32(conn->tcp_recv_wsf);
1e9e2be3
AC		 3665 fw_ddb_entry->ipv6_flow_lbl = cpu_to_le16(conn->ipv6_flow_label);
3666 fw_ddb_entry->ka_timeout = cpu_to_le16(conn->keepalive_timeout);
3667 fw_ddb_entry->lcl_port = cpu_to_le16(conn->local_port);
fbcd4836
AC		 3668 fw_ddb_entry->stat_sn = cpu_to_le32(conn->statsn);
3669 fw_ddb_entry->exp_stat_sn = cpu_to_le32(conn->exp_statsn);
65560166 3670 fw_ddb_entry->ddb_link = cpu_to_le16(sess->discovery_parent_idx);
1e9e2be3
AC		 3671 fw_ddb_entry->chap_tbl_idx = cpu_to_le16(sess->chap_out_idx);
3672 fw_ddb_entry->tsid = cpu_to_le16(sess->tsid);
3673 fw_ddb_entry->port = cpu_to_le16(conn->port);
3674 fw_ddb_entry->def_timeout =
3675 cpu_to_le16(sess->default_taskmgmt_timeout);
3676
84595802
AC		 3677 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4))
3678 fw_ddb_entry->ipv4_tos = conn->ipv6_traffic_class;
3679 else
3680 fw_ddb_entry->ipv4_tos = conn->ipv4_tos;
3681
1e9e2be3
AC		 3682 if (conn->ipaddress)
3683 memcpy(fw_ddb_entry->ip_addr, conn->ipaddress,
3684 sizeof(fw_ddb_entry->ip_addr));
3685
3686 if (conn->redirect_ipaddr)
3687 memcpy(fw_ddb_entry->tgt_addr, conn->redirect_ipaddr,
3688 sizeof(fw_ddb_entry->tgt_addr));
3689
3690 if (conn->link_local_ipv6_addr)
3691 memcpy(fw_ddb_entry->link_local_ipv6_addr,
3692 conn->link_local_ipv6_addr,
3693 sizeof(fw_ddb_entry->link_local_ipv6_addr));
3694
3695 if (sess->targetname)
3696 memcpy(fw_ddb_entry->iscsi_name, sess->targetname,
3697 sizeof(fw_ddb_entry->iscsi_name));
3698
3699 if (sess->targetalias)
3700 memcpy(fw_ddb_entry->iscsi_alias, sess->targetalias,
3701 sizeof(fw_ddb_entry->iscsi_alias));
3702
3703 COPY_ISID(fw_ddb_entry->isid, sess->isid);
3704
3705 return rc;
3706}
3707
8cc91d42
AC		 3708static void qla4xxx_copy_to_sess_conn_params(struct iscsi_conn *conn,
3709 struct iscsi_session *sess,
3710 struct dev_db_entry *fw_ddb_entry)
3711{
3712 unsigned long options = 0;
3713 uint16_t ddb_link;
3714 uint16_t disc_parent;
fb734ee3 3715 char ip_addr[DDB_IPADDR_LEN];
8cc91d42
AC		 3716
3717 options = le16_to_cpu(fw_ddb_entry->options);
3718 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options);
3719 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE,
3720 &options);
3721 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options);
3722
3723 options = le16_to_cpu(fw_ddb_entry->iscsi_options);
3724 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options);
3725 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options);
3726 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options);
3727 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options);
3728 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER,
3729 &options);
3730 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options);
3731 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options);
3732 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN,
3733 &options);
3734 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options);
3735 sess->discovery_auth_optional =
3736 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options);
3737 if (test_bit(ISCSIOPT_ERL1, &options))
3738 sess->erl |= BIT_1;
3739 if (test_bit(ISCSIOPT_ERL0, &options))
3740 sess->erl |= BIT_0;
3741
3742 options = le16_to_cpu(fw_ddb_entry->tcp_options);
3743 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options);
3744 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options);
3745 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options);
3746 if (test_bit(TCPOPT_TIMER_SCALE3, &options))
3747 conn->tcp_timer_scale |= BIT_3;
3748 if (test_bit(TCPOPT_TIMER_SCALE2, &options))
3749 conn->tcp_timer_scale |= BIT_2;
3750 if (test_bit(TCPOPT_TIMER_SCALE1, &options))
3751 conn->tcp_timer_scale |= BIT_1;
3752
3753 conn->tcp_timer_scale >>= 1;
3754 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options);
3755
3756 options = le16_to_cpu(fw_ddb_entry->ip_options);
3757 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options);
3758
3759 conn->max_recv_dlength = BYTE_UNITS *
3760 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len);
3761 conn->max_xmit_dlength = BYTE_UNITS *
3762 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len);
3763 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t);
3764 sess->first_burst = BYTE_UNITS *
3765 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len);
3766 sess->max_burst = BYTE_UNITS *
3767 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len);
3768 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
3769 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain);
3770 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
3771 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss);
3772 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf;
3773 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf;
3774 conn->ipv4_tos = fw_ddb_entry->ipv4_tos;
3775 conn->keepalive_tmo = le16_to_cpu(fw_ddb_entry->ka_timeout);
3776 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port);
3777 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn);
3778 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn);
3779 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid);
3780 COPY_ISID(sess->isid, fw_ddb_entry->isid);
3781
3782 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
8cc91d42
AC		 3783 if (ddb_link == DDB_ISNS)
3784 disc_parent = ISCSI_DISC_PARENT_ISNS;
3785 else if (ddb_link == DDB_NO_LINK)
3786 disc_parent = ISCSI_DISC_PARENT_UNKNOWN;
3787 else if (ddb_link < MAX_DDB_ENTRIES)
3788 disc_parent = ISCSI_DISC_PARENT_SENDTGT;
3789 else
3790 disc_parent = ISCSI_DISC_PARENT_UNKNOWN;
3791
3792 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_DISCOVERY_PARENT_TYPE,
3793 iscsi_get_discovery_parent_name(disc_parent), 0);
3794
3795 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_TARGET_ALIAS,
3796 (char *)fw_ddb_entry->iscsi_alias, 0);
fb734ee3
AC		 3797
3798 options = le16_to_cpu(fw_ddb_entry->options);
3799 if (options & DDB_OPT_IPV6_DEVICE) {
3800 memset(ip_addr, 0, sizeof(ip_addr));
3801 sprintf(ip_addr, "%pI6", fw_ddb_entry->link_local_ipv6_addr);
3802 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_LOCAL_IPADDR,
3803 (char *)ip_addr, 0);
3804 }
8cc91d42
AC		 3805}
3806
13483730
MC		 3807static void qla4xxx_copy_fwddb_param(struct scsi_qla_host *ha,
3808 struct dev_db_entry *fw_ddb_entry,
3809 struct iscsi_cls_session *cls_sess,
3810 struct iscsi_cls_conn *cls_conn)
3811{
3812 int buflen = 0;
3813 struct iscsi_session *sess;
376738af 3814 struct ddb_entry *ddb_entry;
946ac571 3815 struct ql4_chap_table chap_tbl;
13483730
MC		 3816 struct iscsi_conn *conn;
3817 char ip_addr[DDB_IPADDR_LEN];
3818 uint16_t options = 0;
3819
3820 sess = cls_sess->dd_data;
376738af 3821 ddb_entry = sess->dd_data;
13483730 3822 conn = cls_conn->dd_data;
946ac571 3823 memset(&chap_tbl, 0, sizeof(chap_tbl));
13483730 3824
376738af
NJ		 3825 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
3826
8cc91d42 3827 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry);
13483730 3828
8cc91d42 3829 sess->def_taskmgmt_tmo = le16_to_cpu(fw_ddb_entry->def_timeout);
13483730
MC		 3830 conn->persistent_port = le16_to_cpu(fw_ddb_entry->port);
3831
8cc91d42 3832 memset(ip_addr, 0, sizeof(ip_addr));
13483730 3833 options = le16_to_cpu(fw_ddb_entry->options);
8cc91d42
AC		 3834 if (options & DDB_OPT_IPV6_DEVICE) {
3835 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv6", 4);
3836
3837 memset(ip_addr, 0, sizeof(ip_addr));
13483730 3838 sprintf(ip_addr, "%pI6", fw_ddb_entry->ip_addr);
8cc91d42
AC		 3839 } else {
3840 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv4", 4);
13483730 3841 sprintf(ip_addr, "%pI4", fw_ddb_entry->ip_addr);
8cc91d42 3842 }
13483730 3843
8cc91d42
AC		 3844 iscsi_set_param(cls_conn, ISCSI_PARAM_PERSISTENT_ADDRESS,
3845 (char *)ip_addr, buflen);
13483730
MC		 3846 iscsi_set_param(cls_conn, ISCSI_PARAM_TARGET_NAME,
3847 (char *)fw_ddb_entry->iscsi_name, buflen);
3848 iscsi_set_param(cls_conn, ISCSI_PARAM_INITIATOR_NAME,
3849 (char *)ha->name_string, buflen);
946ac571
AC		 3850
3851 if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) {
3852 if (!qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name,
3853 chap_tbl.secret,
3854 ddb_entry->chap_tbl_idx)) {
3855 iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME,
3856 (char *)chap_tbl.name,
3857 strlen((char *)chap_tbl.name));
3858 iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD,
3859 (char *)chap_tbl.secret,
3860 chap_tbl.secret_len);
3861 }
3862 }
13483730
MC		 3863}
3864
3865void qla4xxx_update_session_conn_fwddb_param(struct scsi_qla_host *ha,
3866 struct ddb_entry *ddb_entry)
3867{
3868 struct iscsi_cls_session *cls_sess;
3869 struct iscsi_cls_conn *cls_conn;
3870 uint32_t ddb_state;
3871 dma_addr_t fw_ddb_entry_dma;
3872 struct dev_db_entry *fw_ddb_entry;
3873
3874 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3875 &fw_ddb_entry_dma, GFP_KERNEL);
3876 if (!fw_ddb_entry) {
3877 ql4_printk(KERN_ERR, ha,
3878 "%s: Unable to allocate dma buffer\n", __func__);
3879 goto exit_session_conn_fwddb_param;
3880 }
3881
3882 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry,
3883 fw_ddb_entry_dma, NULL, NULL, &ddb_state,
3884 NULL, NULL, NULL) == QLA_ERROR) {
3885 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
3886 "get_ddb_entry for fw_ddb_index %d\n",
3887 ha->host_no, __func__,
3888 ddb_entry->fw_ddb_index));
3889 goto exit_session_conn_fwddb_param;
3890 }
3891
3892 cls_sess = ddb_entry->sess;
3893
3894 cls_conn = ddb_entry->conn;
3895
3896 /* Update params */
3897 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn);
3898
3899exit_session_conn_fwddb_param:
3900 if (fw_ddb_entry)
3901 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3902 fw_ddb_entry, fw_ddb_entry_dma);
3903}
3904
b3a271a9
MR		 3905void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha,
3906 struct ddb_entry *ddb_entry)
3907{
3908 struct iscsi_cls_session *cls_sess;
3909 struct iscsi_cls_conn *cls_conn;
3910 struct iscsi_session *sess;
3911 struct iscsi_conn *conn;
3912 uint32_t ddb_state;
3913 dma_addr_t fw_ddb_entry_dma;
3914 struct dev_db_entry *fw_ddb_entry;
3915
3916 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3917 &fw_ddb_entry_dma, GFP_KERNEL);
3918 if (!fw_ddb_entry) {
3919 ql4_printk(KERN_ERR, ha,
3920 "%s: Unable to allocate dma buffer\n", __func__);
13483730 3921 goto exit_session_conn_param;
b3a271a9
MR		 3922 }
3923
3924 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry,
3925 fw_ddb_entry_dma, NULL, NULL, &ddb_state,
3926 NULL, NULL, NULL) == QLA_ERROR) {
3927 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
3928 "get_ddb_entry for fw_ddb_index %d\n",
3929 ha->host_no, __func__,
3930 ddb_entry->fw_ddb_index));
13483730 3931 goto exit_session_conn_param;
b3a271a9
MR		 3932 }
3933
3934 cls_sess = ddb_entry->sess;
3935 sess = cls_sess->dd_data;
3936
3937 cls_conn = ddb_entry->conn;
3938 conn = cls_conn->dd_data;
3939
13483730
MC		 3940 /* Update timers after login */
3941 ddb_entry->default_relogin_timeout =
c28eaaca
NJ		 3942 (le16_to_cpu(fw_ddb_entry->def_timeout) > LOGIN_TOV) &&
3943 (le16_to_cpu(fw_ddb_entry->def_timeout) < LOGIN_TOV * 10) ?
3944 le16_to_cpu(fw_ddb_entry->def_timeout) : LOGIN_TOV;
13483730
MC		 3945 ddb_entry->default_time2wait =
3946 le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
3947
b3a271a9 3948 /* Update params */
376738af 3949 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
8cc91d42 3950 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry);
b3a271a9
MR		 3951
3952 memcpy(sess->initiatorname, ha->name_string,
3953 min(sizeof(ha->name_string), sizeof(sess->initiatorname)));
13483730
MC		 3954
3955exit_session_conn_param:
3956 if (fw_ddb_entry)
3957 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3958 fw_ddb_entry, fw_ddb_entry_dma);
b3a271a9
MR		 3959}
3960
afaf5a2d
DS		 3961/*
3962 * Timer routines
3963 */
3964
3965static void qla4xxx_start_timer(struct scsi_qla_host *ha, void *func,
3966 unsigned long interval)
3967{
3968 DEBUG(printk("scsi: %s: Starting timer thread for adapter %d\n",
3969 __func__, ha->host->host_no));
3970 init_timer(&ha->timer);
3971 ha->timer.expires = jiffies + interval * HZ;
3972 ha->timer.data = (unsigned long)ha;
3973 ha->timer.function = (void (*)(unsigned long))func;
3974 add_timer(&ha->timer);
3975 ha->timer_active = 1;
3976}
3977
3978static void qla4xxx_stop_timer(struct scsi_qla_host *ha)
3979{
3980 del_timer_sync(&ha->timer);
3981 ha->timer_active = 0;
3982}
3983
3984/***
b3a271a9
MR		 3985 * qla4xxx_mark_device_missing - blocks the session
3986 * @cls_session: Pointer to the session to be blocked
afaf5a2d
DS		 3987 * @ddb_entry: Pointer to device database entry
3988 *
f4f5df23 3989 * This routine marks a device missing and close connection.
afaf5a2d 3990 **/
b3a271a9 3991void qla4xxx_mark_device_missing(struct iscsi_cls_session *cls_session)
afaf5a2d 3992{
b3a271a9 3993 iscsi_block_session(cls_session);
afaf5a2d
DS		 3994}
3995
f4f5df23
VC		 3996/**
3997 * qla4xxx_mark_all_devices_missing - mark all devices as missing.
3998 * @ha: Pointer to host adapter structure.
3999 *
4000 * This routine marks a device missing and resets the relogin retry count.
4001 **/
4002void qla4xxx_mark_all_devices_missing(struct scsi_qla_host *ha)
4003{
b3a271a9 4004 iscsi_host_for_each_session(ha->host, qla4xxx_mark_device_missing);
f4f5df23
VC		 4005}
4006
afaf5a2d
DS		 4007static struct srb* qla4xxx_get_new_srb(struct scsi_qla_host *ha,
4008 struct ddb_entry *ddb_entry,
8f0722ca 4009 struct scsi_cmnd *cmd)
afaf5a2d
DS		 4010{
4011 struct srb *srb;
4012
4013 srb = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
4014 if (!srb)
4015 return srb;
4016
09a0f719 4017 kref_init(&srb->srb_ref);
afaf5a2d
DS		 4018 srb->ha = ha;
4019 srb->ddb = ddb_entry;
4020 srb->cmd = cmd;
4021 srb->flags = 0;
5369887a 4022 CMD_SP(cmd) = (void *)srb;
afaf5a2d
DS		 4023
4024 return srb;
4025}
4026
4027static void qla4xxx_srb_free_dma(struct scsi_qla_host *ha, struct srb *srb)
4028{
4029 struct scsi_cmnd *cmd = srb->cmd;
4030
4031 if (srb->flags & SRB_DMA_VALID) {
5f7186c8 4032 scsi_dma_unmap(cmd);
afaf5a2d
DS		 4033 srb->flags &= ~SRB_DMA_VALID;
4034 }
5369887a 4035 CMD_SP(cmd) = NULL;
afaf5a2d
DS		 4036}
4037
09a0f719 4038void qla4xxx_srb_compl(struct kref *ref)
afaf5a2d 4039{
09a0f719 4040 struct srb *srb = container_of(ref, struct srb, srb_ref);
afaf5a2d 4041 struct scsi_cmnd *cmd = srb->cmd;
09a0f719 4042 struct scsi_qla_host *ha = srb->ha;
afaf5a2d
DS		 4043
4044 qla4xxx_srb_free_dma(ha, srb);
4045
4046 mempool_free(srb, ha->srb_mempool);
4047
4048 cmd->scsi_done(cmd);
4049}
4050
4051/**
4052 * qla4xxx_queuecommand - scsi layer issues scsi command to driver.
8f0722ca 4053 * @host: scsi host
afaf5a2d 4054 * @cmd: Pointer to Linux's SCSI command structure
afaf5a2d
DS		 4055 *
4056 * Remarks:
4057 * This routine is invoked by Linux to send a SCSI command to the driver.
4058 * The mid-level driver tries to ensure that queuecommand never gets
4059 * invoked concurrently with itself or the interrupt handler (although
4060 * the interrupt handler may call this routine as part of request-
4061 * completion handling). Unfortunely, it sometimes calls the scheduler
4062 * in interrupt context which is a big NO! NO!.
4063 **/
8f0722ca 4064static int qla4xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
afaf5a2d 4065{
8f0722ca 4066 struct scsi_qla_host *ha = to_qla_host(host);
afaf5a2d 4067 struct ddb_entry *ddb_entry = cmd->device->hostdata;
7fb1921b 4068 struct iscsi_cls_session *sess = ddb_entry->sess;
afaf5a2d
DS		 4069 struct srb *srb;
4070 int rval;
4071
2232be0d
LC		 4072 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
4073 if (test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags))
4074 cmd->result = DID_NO_CONNECT << 16;
4075 else
4076 cmd->result = DID_REQUEUE << 16;
4077 goto qc_fail_command;
4078 }
4079
7fb1921b
MC		 4080 if (!sess) {
4081 cmd->result = DID_IMM_RETRY << 16;
4082 goto qc_fail_command;
4083 }
4084
4085 rval = iscsi_session_chkready(sess);
4086 if (rval) {
4087 cmd->result = rval;
4088 goto qc_fail_command;
4089 }
4090
f4f5df23
VC		 4091 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
4092 test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) ||
4093 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
4094 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) ||
4095 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) ||
4096 !test_bit(AF_ONLINE, &ha->flags) ||
b3a271a9 4097 !test_bit(AF_LINK_UP, &ha->flags) ||
026fbd3a 4098 test_bit(AF_LOOPBACK, &ha->flags) ||
7ab284c9
NJ		 4099 test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags) ||
4100 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags) ||
f4f5df23 4101 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))
477ffb9d
DS		 4102 goto qc_host_busy;
4103
8f0722ca 4104 srb = qla4xxx_get_new_srb(ha, ddb_entry, cmd);
afaf5a2d 4105 if (!srb)
8f0722ca 4106 goto qc_host_busy;
afaf5a2d
DS		 4107
4108 rval = qla4xxx_send_command_to_isp(ha, srb);
4109 if (rval != QLA_SUCCESS)
4110 goto qc_host_busy_free_sp;
4111
afaf5a2d
DS		 4112 return 0;
4113
4114qc_host_busy_free_sp:
4115 qla4xxx_srb_free_dma(ha, srb);
4116 mempool_free(srb, ha->srb_mempool);
4117
afaf5a2d
DS		 4118qc_host_busy:
4119 return SCSI_MLQUEUE_HOST_BUSY;
4120
4121qc_fail_command:
8f0722ca 4122 cmd->scsi_done(cmd);
afaf5a2d
DS		 4123
4124 return 0;
4125}
4126
4127/**
4128 * qla4xxx_mem_free - frees memory allocated to adapter
4129 * @ha: Pointer to host adapter structure.
4130 *
4131 * Frees memory previously allocated by qla4xxx_mem_alloc
4132 **/
4133static void qla4xxx_mem_free(struct scsi_qla_host *ha)
4134{
4135 if (ha->queues)
4136 dma_free_coherent(&ha->pdev->dev, ha->queues_len, ha->queues,
4137 ha->queues_dma);
4138
068237c8
TP		 4139 if (ha->fw_dump)
4140 vfree(ha->fw_dump);
4141
afaf5a2d
DS		 4142 ha->queues_len = 0;
4143 ha->queues = NULL;
4144 ha->queues_dma = 0;
4145 ha->request_ring = NULL;
4146 ha->request_dma = 0;
4147 ha->response_ring = NULL;
4148 ha->response_dma = 0;
4149 ha->shadow_regs = NULL;
4150 ha->shadow_regs_dma = 0;
068237c8
TP		 4151 ha->fw_dump = NULL;
4152 ha->fw_dump_size = 0;
afaf5a2d
DS		 4153
4154 /* Free srb pool. */
4155 if (ha->srb_mempool)
4156 mempool_destroy(ha->srb_mempool);
4157
4158 ha->srb_mempool = NULL;
4159
b3a271a9
MR		 4160 if (ha->chap_dma_pool)
4161 dma_pool_destroy(ha->chap_dma_pool);
4162
4549415a
LC		 4163 if (ha->chap_list)
4164 vfree(ha->chap_list);
4165 ha->chap_list = NULL;
4166
13483730
MC		 4167 if (ha->fw_ddb_dma_pool)
4168 dma_pool_destroy(ha->fw_ddb_dma_pool);
4169
afaf5a2d 4170 /* release io space registers */
f4f5df23
VC		 4171 if (is_qla8022(ha)) {
4172 if (ha->nx_pcibase)
4173 iounmap(
4174 (struct device_reg_82xx __iomem *)ha->nx_pcibase);
b37ca418 4175 } else if (is_qla8032(ha) || is_qla8042(ha)) {
6e7b4292
VC		 4176 if (ha->nx_pcibase)
4177 iounmap(
4178 (struct device_reg_83xx __iomem *)ha->nx_pcibase);
4179 } else if (ha->reg) {
afaf5a2d 4180 iounmap(ha->reg);
6e7b4292
VC		 4181 }
4182
4183 if (ha->reset_tmplt.buff)
4184 vfree(ha->reset_tmplt.buff);
4185
afaf5a2d
DS		 4186 pci_release_regions(ha->pdev);
4187}
4188
4189/**
4190 * qla4xxx_mem_alloc - allocates memory for use by adapter.
4191 * @ha: Pointer to host adapter structure
4192 *
4193 * Allocates DMA memory for request and response queues. Also allocates memory
4194 * for srbs.
4195 **/
4196static int qla4xxx_mem_alloc(struct scsi_qla_host *ha)
4197{
4198 unsigned long align;
4199
4200 /* Allocate contiguous block of DMA memory for queues. */
4201 ha->queues_len = ((REQUEST_QUEUE_DEPTH * QUEUE_SIZE) +
4202 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE) +
4203 sizeof(struct shadow_regs) +
4204 MEM_ALIGN_VALUE +
4205 (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
4206 ha->queues = dma_alloc_coherent(&ha->pdev->dev, ha->queues_len,
4207 &ha->queues_dma, GFP_KERNEL);
4208 if (ha->queues == NULL) {
c2660df3
VC		 4209 ql4_printk(KERN_WARNING, ha,
4210 "Memory Allocation failed - queues.\n");
afaf5a2d
DS		 4211
4212 goto mem_alloc_error_exit;
4213 }
4214 memset(ha->queues, 0, ha->queues_len);
4215
4216 /*
4217 * As per RISC alignment requirements -- the bus-address must be a
4218 * multiple of the request-ring size (in bytes).
4219 */
4220 align = 0;
4221 if ((unsigned long)ha->queues_dma & (MEM_ALIGN_VALUE - 1))
4222 align = MEM_ALIGN_VALUE - ((unsigned long)ha->queues_dma &
4223 (MEM_ALIGN_VALUE - 1));
4224
4225 /* Update request and response queue pointers. */
4226 ha->request_dma = ha->queues_dma + align;
4227 ha->request_ring = (struct queue_entry *) (ha->queues + align);
4228 ha->response_dma = ha->queues_dma + align +
4229 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE);
4230 ha->response_ring = (struct queue_entry *) (ha->queues + align +
4231 (REQUEST_QUEUE_DEPTH *
4232 QUEUE_SIZE));
4233 ha->shadow_regs_dma = ha->queues_dma + align +
4234 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE) +
4235 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE);
4236 ha->shadow_regs = (struct shadow_regs *) (ha->queues + align +
4237 (REQUEST_QUEUE_DEPTH *
4238 QUEUE_SIZE) +
4239 (RESPONSE_QUEUE_DEPTH *
4240 QUEUE_SIZE));
4241
4242 /* Allocate memory for srb pool. */
4243 ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab,
4244 mempool_free_slab, srb_cachep);
4245 if (ha->srb_mempool == NULL) {
c2660df3
VC		 4246 ql4_printk(KERN_WARNING, ha,
4247 "Memory Allocation failed - SRB Pool.\n");
afaf5a2d
DS		 4248
4249 goto mem_alloc_error_exit;
4250 }
4251
b3a271a9
MR		 4252 ha->chap_dma_pool = dma_pool_create("ql4_chap", &ha->pdev->dev,
4253 CHAP_DMA_BLOCK_SIZE, 8, 0);
4254
4255 if (ha->chap_dma_pool == NULL) {
4256 ql4_printk(KERN_WARNING, ha,
4257 "%s: chap_dma_pool allocation failed..\n", __func__);
4258 goto mem_alloc_error_exit;
4259 }
4260
13483730
MC		 4261 ha->fw_ddb_dma_pool = dma_pool_create("ql4_fw_ddb", &ha->pdev->dev,
4262 DDB_DMA_BLOCK_SIZE, 8, 0);
4263
4264 if (ha->fw_ddb_dma_pool == NULL) {
4265 ql4_printk(KERN_WARNING, ha,
4266 "%s: fw_ddb_dma_pool allocation failed..\n",
4267 __func__);
4268 goto mem_alloc_error_exit;
4269 }
4270
afaf5a2d
DS		 4271 return QLA_SUCCESS;
4272
4273mem_alloc_error_exit:
4274 qla4xxx_mem_free(ha);
4275 return QLA_ERROR;
4276}
4277
4f77083e
MH		 4278/**
4279 * qla4_8xxx_check_temp - Check the ISP82XX temperature.
4280 * @ha: adapter block pointer.
4281 *
4282 * Note: The caller should not hold the idc lock.
4283 **/
4284static int qla4_8xxx_check_temp(struct scsi_qla_host *ha)
4285{
4286 uint32_t temp, temp_state, temp_val;
4287 int status = QLA_SUCCESS;
4288
33693c7a 4289 temp = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_TEMP_STATE);
4f77083e
MH		 4290
4291 temp_state = qla82xx_get_temp_state(temp);
4292 temp_val = qla82xx_get_temp_val(temp);
4293
4294 if (temp_state == QLA82XX_TEMP_PANIC) {
4295 ql4_printk(KERN_WARNING, ha, "Device temperature %d degrees C"
4296 " exceeds maximum allowed. Hardware has been shut"
4297 " down.\n", temp_val);
4298 status = QLA_ERROR;
4299 } else if (temp_state == QLA82XX_TEMP_WARN) {
4300 if (ha->temperature == QLA82XX_TEMP_NORMAL)
4301 ql4_printk(KERN_WARNING, ha, "Device temperature %d"
4302 " degrees C exceeds operating range."
4303 " Immediate action needed.\n", temp_val);
4304 } else {
4305 if (ha->temperature == QLA82XX_TEMP_WARN)
4306 ql4_printk(KERN_INFO, ha, "Device temperature is"
4307 " now %d degrees C in normal range.\n",
4308 temp_val);
4309 }
4310 ha->temperature = temp_state;
4311 return status;
4312}
4313
f4f5df23
VC		 4314/**
4315 * qla4_8xxx_check_fw_alive - Check firmware health
4316 * @ha: Pointer to host adapter structure.
4317 *
4318 * Context: Interrupt
4319 **/
9ee91a38 4320static int qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha)
f4f5df23 4321{
9ee91a38
SS		 4322 uint32_t fw_heartbeat_counter;
4323 int status = QLA_SUCCESS;
f4f5df23 4324
33693c7a
VC		 4325 fw_heartbeat_counter = qla4_8xxx_rd_direct(ha,
4326 QLA8XXX_PEG_ALIVE_COUNTER);
2232be0d
LC		 4327 /* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */
4328 if (fw_heartbeat_counter == 0xffffffff) {
4329 DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Device in frozen "
4330 "state, QLA82XX_PEG_ALIVE_COUNTER is 0xffffffff\n",
4331 ha->host_no, __func__));
9ee91a38 4332 return status;
2232be0d 4333 }
f4f5df23
VC		 4334
4335 if (ha->fw_heartbeat_counter == fw_heartbeat_counter) {
4336 ha->seconds_since_last_heartbeat++;
4337 /* FW not alive after 2 seconds */
4338 if (ha->seconds_since_last_heartbeat == 2) {
4339 ha->seconds_since_last_heartbeat = 0;
6e7b4292 4340 qla4_8xxx_dump_peg_reg(ha);
9ee91a38 4341 status = QLA_ERROR;
f4f5df23 4342 }
99457d75
LC		 4343 } else
4344 ha->seconds_since_last_heartbeat = 0;
4345
f4f5df23 4346 ha->fw_heartbeat_counter = fw_heartbeat_counter;
9ee91a38 4347 return status;
f4f5df23
VC		 4348}
4349
6e7b4292
VC		 4350static void qla4_8xxx_process_fw_error(struct scsi_qla_host *ha)
4351{
4352 uint32_t halt_status;
4353 int halt_status_unrecoverable = 0;
4354
4355 halt_status = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_HALT_STATUS1);
4356
4357 if (is_qla8022(ha)) {
4358 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
4359 __func__);
4360 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
4361 CRB_NIU_XG_PAUSE_CTL_P0 |
4362 CRB_NIU_XG_PAUSE_CTL_P1);
4363
4364 if (QLA82XX_FWERROR_CODE(halt_status) == 0x67)
4365 ql4_printk(KERN_ERR, ha, "%s: Firmware aborted with error code 0x00006700. Device is being reset\n",
4366 __func__);
4367 if (halt_status & HALT_STATUS_UNRECOVERABLE)
4368 halt_status_unrecoverable = 1;
b37ca418 4369 } else if (is_qla8032(ha) || is_qla8042(ha)) {
6e7b4292
VC		 4370 if (halt_status & QLA83XX_HALT_STATUS_FW_RESET)
4371 ql4_printk(KERN_ERR, ha, "%s: Firmware error detected device is being reset\n",
4372 __func__);
4373 else if (halt_status & QLA83XX_HALT_STATUS_UNRECOVERABLE)
4374 halt_status_unrecoverable = 1;
4375 }
4376
4377 /*
4378 * Since we cannot change dev_state in interrupt context,
4379 * set appropriate DPC flag then wakeup DPC
4380 */
4381 if (halt_status_unrecoverable) {
4382 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags);
4383 } else {
4384 ql4_printk(KERN_INFO, ha, "%s: detect abort needed!\n",
4385 __func__);
4386 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4387 }
4388 qla4xxx_mailbox_premature_completion(ha);
4389 qla4xxx_wake_dpc(ha);
4390}
4391
f4f5df23
VC		 4392/**
4393 * qla4_8xxx_watchdog - Poll dev state
4394 * @ha: Pointer to host adapter structure.
4395 *
4396 * Context: Interrupt
4397 **/
4398void qla4_8xxx_watchdog(struct scsi_qla_host *ha)
4399{
6e7b4292 4400 uint32_t dev_state;
6cf94121 4401 uint32_t idc_ctrl;
f4f5df23 4402
a083e8bc
VC		 4403 if (is_qla8032(ha) &&
4404 (qla4_83xx_is_detached(ha) == QLA_SUCCESS))
4405 WARN_ONCE(1, "%s: iSCSI function %d marked invisible\n",
4406 __func__, ha->func_num);
4407
f4f5df23 4408 /* don't poll if reset is going on */
d56a1f7b
LC		 4409 if (!(test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) ||
4410 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
977f46a4 4411 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags))) {
33693c7a 4412 dev_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE);
4f77083e
MH		 4413
4414 if (qla4_8xxx_check_temp(ha)) {
6e7b4292
VC		 4415 if (is_qla8022(ha)) {
4416 ql4_printk(KERN_INFO, ha, "disabling pause transmit on port 0 & 1.\n");
4417 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
4418 CRB_NIU_XG_PAUSE_CTL_P0 |
4419 CRB_NIU_XG_PAUSE_CTL_P1);
4420 }
4f77083e
MH		 4421 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags);
4422 qla4xxx_wake_dpc(ha);
de8c72da 4423 } else if (dev_state == QLA8XXX_DEV_NEED_RESET &&
6e7b4292 4424 !test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
6cf94121
VC		 4425
4426 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED RESET!\n",
4427 __func__);
4428
b37ca418 4429 if (is_qla8032(ha) || is_qla8042(ha)) {
6cf94121
VC		 4430 idc_ctrl = qla4_83xx_rd_reg(ha,
4431 QLA83XX_IDC_DRV_CTRL);
4432 if (!(idc_ctrl & GRACEFUL_RESET_BIT1)) {
4433 ql4_printk(KERN_INFO, ha, "%s: Graceful reset bit is not set\n",
4434 __func__);
4435 qla4xxx_mailbox_premature_completion(
4436 ha);
4437 }
4438 }
4439
b37ca418 4440 if ((is_qla8032(ha) || is_qla8042(ha)) ||
6e7b4292 4441 (is_qla8022(ha) && !ql4xdontresethba)) {
3930b8c1
VC		 4442 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4443 qla4xxx_wake_dpc(ha);
3930b8c1 4444 }
de8c72da 4445 } else if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT &&
f4f5df23 4446 !test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) {
3930b8c1
VC		 4447 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED QUIES!\n",
4448 __func__);
f4f5df23
VC		 4449 set_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags);
4450 qla4xxx_wake_dpc(ha);
4451 } else {
4452 /* Check firmware health */
6e7b4292
VC		 4453 if (qla4_8xxx_check_fw_alive(ha))
4454 qla4_8xxx_process_fw_error(ha);
f4f5df23
VC		 4455 }
4456 }
4457}
4458
4a4bc2e9 4459static void qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)
13483730
MC		 4460{
4461 struct iscsi_session *sess;
4462 struct ddb_entry *ddb_entry;
4463 struct scsi_qla_host *ha;
4464
4465 sess = cls_sess->dd_data;
4466 ddb_entry = sess->dd_data;
4467 ha = ddb_entry->ha;
4468
4469 if (!(ddb_entry->ddb_type == FLASH_DDB))
4470 return;
4471
4472 if (adapter_up(ha) && !test_bit(DF_RELOGIN, &ddb_entry->flags) &&
4473 !iscsi_is_session_online(cls_sess)) {
4474 if (atomic_read(&ddb_entry->retry_relogin_timer) !=
4475 INVALID_ENTRY) {
4476 if (atomic_read(&ddb_entry->retry_relogin_timer) ==
4477 0) {
4478 atomic_set(&ddb_entry->retry_relogin_timer,
4479 INVALID_ENTRY);
4480 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
4481 set_bit(DF_RELOGIN, &ddb_entry->flags);
4482 DEBUG2(ql4_printk(KERN_INFO, ha,
4483 "%s: index [%d] login device\n",
4484 __func__, ddb_entry->fw_ddb_index));
4485 } else
4486 atomic_dec(&ddb_entry->retry_relogin_timer);
4487 }
4488 }
4489
4490 /* Wait for relogin to timeout */
4491 if (atomic_read(&ddb_entry->relogin_timer) &&
4492 (atomic_dec_and_test(&ddb_entry->relogin_timer) != 0)) {
4493 /*
4494 * If the relogin times out and the device is
4495 * still NOT ONLINE then try and relogin again.
4496 */
4497 if (!iscsi_is_session_online(cls_sess)) {
4498 /* Reset retry relogin timer */
4499 atomic_inc(&ddb_entry->relogin_retry_count);
4500 DEBUG2(ql4_printk(KERN_INFO, ha,
4501 "%s: index[%d] relogin timed out-retrying"
4502 " relogin (%d), retry (%d)\n", __func__,
4503 ddb_entry->fw_ddb_index,
4504 atomic_read(&ddb_entry->relogin_retry_count),
4505 ddb_entry->default_time2wait + 4));
4506 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
4507 atomic_set(&ddb_entry->retry_relogin_timer,
4508 ddb_entry->default_time2wait + 4);
4509 }
4510 }
4511}
4512
afaf5a2d
DS		 4513/**
4514 * qla4xxx_timer - checks every second for work to do.
4515 * @ha: Pointer to host adapter structure.
4516 **/
4517static void qla4xxx_timer(struct scsi_qla_host *ha)
4518{
afaf5a2d 4519 int start_dpc = 0;
2232be0d
LC		 4520 uint16_t w;
4521
13483730
MC		 4522 iscsi_host_for_each_session(ha->host, qla4xxx_check_relogin_flash_ddb);
4523
2232be0d
LC		 4524 /* If we are in the middle of AER/EEH processing
4525 * skip any processing and reschedule the timer
4526 */
4527 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
4528 mod_timer(&ha->timer, jiffies + HZ);
4529 return;
4530 }
4531
4532 /* Hardware read to trigger an EEH error during mailbox waits. */
4533 if (!pci_channel_offline(ha->pdev))
4534 pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
afaf5a2d 4535
6e7b4292 4536 if (is_qla80XX(ha))
f4f5df23 4537 qla4_8xxx_watchdog(ha);
f4f5df23 4538
ee996a69 4539 if (is_qla40XX(ha)) {
f4f5df23
VC		 4540 /* Check for heartbeat interval. */
4541 if (ha->firmware_options & FWOPT_HEARTBEAT_ENABLE &&
4542 ha->heartbeat_interval != 0) {
4543 ha->seconds_since_last_heartbeat++;
4544 if (ha->seconds_since_last_heartbeat >
4545 ha->heartbeat_interval + 2)
4546 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4547 }
afaf5a2d
DS		 4548 }
4549
ff884430
VC		 4550 /* Process any deferred work. */
4551 if (!list_empty(&ha->work_list))
4552 start_dpc++;
4553
afaf5a2d 4554 /* Wakeup the dpc routine for this adapter, if needed. */
1b46807e 4555 if (start_dpc ||
afaf5a2d
DS		 4556 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
4557 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags) ||
4558 test_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags) ||
f4f5df23 4559 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) ||
afaf5a2d
DS		 4560 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
4561 test_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags) ||
065aa1b4 4562 test_bit(DPC_LINK_CHANGED, &ha->dpc_flags) ||
f4f5df23
VC		 4563 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) ||
4564 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) ||
906cbf3d 4565 test_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags) ||
1b46807e 4566 test_bit(DPC_AEN, &ha->dpc_flags)) {
afaf5a2d
DS		 4567 DEBUG2(printk("scsi%ld: %s: scheduling dpc routine"
4568 " - dpc flags = 0x%lx\n",
4569 ha->host_no, __func__, ha->dpc_flags));
f4f5df23 4570 qla4xxx_wake_dpc(ha);
afaf5a2d
DS		 4571 }
4572
4573 /* Reschedule timer thread to call us back in one second */
4574 mod_timer(&ha->timer, jiffies + HZ);
4575
4576 DEBUG2(ha->seconds_since_last_intr++);
4577}
4578
4579/**
4580 * qla4xxx_cmd_wait - waits for all outstanding commands to complete
4581 * @ha: Pointer to host adapter structure.
4582 *
4583 * This routine stalls the driver until all outstanding commands are returned.
4584 * Caller must release the Hardware Lock prior to calling this routine.
4585 **/
4586static int qla4xxx_cmd_wait(struct scsi_qla_host *ha)
4587{
4588 uint32_t index = 0;
afaf5a2d
DS		 4589 unsigned long flags;
4590 struct scsi_cmnd *cmd;
61d9a2b6
TP		 4591 unsigned long wtime;
4592 uint32_t wtmo;
afaf5a2d 4593
61d9a2b6
TP		 4594 if (is_qla40XX(ha))
4595 wtmo = WAIT_CMD_TOV;
4596 else
4597 wtmo = ha->nx_reset_timeout / 2;
4598
4599 wtime = jiffies + (wtmo * HZ);
f4f5df23 4600
61d9a2b6
TP		 4601 DEBUG2(ql4_printk(KERN_INFO, ha,
4602 "Wait up to %u seconds for cmds to complete\n",
4603 wtmo));
f4f5df23
VC		 4604
4605 while (!time_after_eq(jiffies, wtime)) {
afaf5a2d
DS		 4606 spin_lock_irqsave(&ha->hardware_lock, flags);
4607 /* Find a command that hasn't completed. */
4608 for (index = 0; index < ha->host->can_queue; index++) {
4609 cmd = scsi_host_find_tag(ha->host, index);
a1e0063d
MC		 4610 /*
4611 * We cannot just check if the index is valid,
4612 * becase if we are run from the scsi eh, then
4613 * the scsi/block layer is going to prevent
4614 * the tag from being released.
4615 */
4616 if (cmd != NULL && CMD_SP(cmd))
afaf5a2d
DS		 4617 break;
4618 }
4619 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4620
4621 /* If No Commands are pending, wait is complete */
f4f5df23
VC		 4622 if (index == ha->host->can_queue)
4623 return QLA_SUCCESS;
afaf5a2d 4624
f4f5df23
VC		 4625 msleep(1000);
4626 }
4627 /* If we timed out on waiting for commands to come back
4628 * return ERROR. */
4629 return QLA_ERROR;
afaf5a2d
DS		 4630}
4631
f4f5df23 4632int qla4xxx_hw_reset(struct scsi_qla_host *ha)
afaf5a2d 4633{
afaf5a2d 4634 uint32_t ctrl_status;
477ffb9d
DS		 4635 unsigned long flags = 0;
4636
4637 DEBUG2(printk(KERN_ERR "scsi%ld: %s\n", ha->host_no, __func__));
afaf5a2d 4638
f4f5df23
VC		 4639 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS)
4640 return QLA_ERROR;
4641
afaf5a2d
DS		 4642 spin_lock_irqsave(&ha->hardware_lock, flags);
4643
4644 /*
4645 * If the SCSI Reset Interrupt bit is set, clear it.
4646 * Otherwise, the Soft Reset won't work.
4647 */
4648 ctrl_status = readw(&ha->reg->ctrl_status);
4649 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0)
4650 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status);
4651
4652 /* Issue Soft Reset */
4653 writel(set_rmask(CSR_SOFT_RESET), &ha->reg->ctrl_status);
4654 readl(&ha->reg->ctrl_status);
4655
4656 spin_unlock_irqrestore(&ha->hardware_lock, flags);
f4f5df23 4657 return QLA_SUCCESS;
477ffb9d
DS		 4658}
4659
4660/**
4661 * qla4xxx_soft_reset - performs soft reset.
4662 * @ha: Pointer to host adapter structure.
4663 **/
4664int qla4xxx_soft_reset(struct scsi_qla_host *ha)
4665{
4666 uint32_t max_wait_time;
4667 unsigned long flags = 0;
f931c534 4668 int status;
477ffb9d
DS		 4669 uint32_t ctrl_status;
4670
f931c534
VC		 4671 status = qla4xxx_hw_reset(ha);
4672 if (status != QLA_SUCCESS)
4673 return status;
afaf5a2d 4674
f931c534 4675 status = QLA_ERROR;
afaf5a2d
DS		 4676 /* Wait until the Network Reset Intr bit is cleared */
4677 max_wait_time = RESET_INTR_TOV;
4678 do {
4679 spin_lock_irqsave(&ha->hardware_lock, flags);
4680 ctrl_status = readw(&ha->reg->ctrl_status);
4681 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4682
4683 if ((ctrl_status & CSR_NET_RESET_INTR) == 0)
4684 break;
4685
4686 msleep(1000);
4687 } while ((--max_wait_time));
4688
4689 if ((ctrl_status & CSR_NET_RESET_INTR) != 0) {
4690 DEBUG2(printk(KERN_WARNING
4691 "scsi%ld: Network Reset Intr not cleared by "
4692 "Network function, clearing it now!\n",
4693 ha->host_no));
4694 spin_lock_irqsave(&ha->hardware_lock, flags);
4695 writel(set_rmask(CSR_NET_RESET_INTR), &ha->reg->ctrl_status);
4696 readl(&ha->reg->ctrl_status);
4697 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4698 }
4699
4700 /* Wait until the firmware tells us the Soft Reset is done */
4701 max_wait_time = SOFT_RESET_TOV;
4702 do {
4703 spin_lock_irqsave(&ha->hardware_lock, flags);
4704 ctrl_status = readw(&ha->reg->ctrl_status);
4705 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4706
4707 if ((ctrl_status & CSR_SOFT_RESET) == 0) {
4708 status = QLA_SUCCESS;
4709 break;
4710 }
4711
4712 msleep(1000);
4713 } while ((--max_wait_time));
4714
4715 /*
4716 * Also, make sure that the SCSI Reset Interrupt bit has been cleared
4717 * after the soft reset has taken place.
4718 */
4719 spin_lock_irqsave(&ha->hardware_lock, flags);
4720 ctrl_status = readw(&ha->reg->ctrl_status);
4721 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) {
4722 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status);
4723 readl(&ha->reg->ctrl_status);
4724 }
4725 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4726
4727 /* If soft reset fails then most probably the bios on other
4728 * function is also enabled.
4729 * Since the initialization is sequential the other fn
4730 * wont be able to acknowledge the soft reset.
4731 * Issue a force soft reset to workaround this scenario.
4732 */
4733 if (max_wait_time == 0) {
4734 /* Issue Force Soft Reset */
4735 spin_lock_irqsave(&ha->hardware_lock, flags);
4736 writel(set_rmask(CSR_FORCE_SOFT_RESET), &ha->reg->ctrl_status);
4737 readl(&ha->reg->ctrl_status);
4738 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4739 /* Wait until the firmware tells us the Soft Reset is done */
4740 max_wait_time = SOFT_RESET_TOV;
4741 do {
4742 spin_lock_irqsave(&ha->hardware_lock, flags);
4743 ctrl_status = readw(&ha->reg->ctrl_status);
4744 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4745
4746 if ((ctrl_status & CSR_FORCE_SOFT_RESET) == 0) {
4747 status = QLA_SUCCESS;
4748 break;
4749 }
4750
4751 msleep(1000);
4752 } while ((--max_wait_time));
4753 }
4754
4755 return status;
4756}
4757
afaf5a2d 4758/**
f4f5df23 4759 * qla4xxx_abort_active_cmds - returns all outstanding i/o requests to O.S.
afaf5a2d 4760 * @ha: Pointer to host adapter structure.
f4f5df23 4761 * @res: returned scsi status
afaf5a2d
DS		 4762 *
4763 * This routine is called just prior to a HARD RESET to return all
4764 * outstanding commands back to the Operating System.
4765 * Caller should make sure that the following locks are released
4766 * before this calling routine: Hardware lock, and io_request_lock.
4767 **/
f4f5df23 4768static void qla4xxx_abort_active_cmds(struct scsi_qla_host *ha, int res)
afaf5a2d
DS		 4769{
4770 struct srb *srb;
4771 int i;
4772 unsigned long flags;
4773
4774 spin_lock_irqsave(&ha->hardware_lock, flags);
4775 for (i = 0; i < ha->host->can_queue; i++) {
4776 srb = qla4xxx_del_from_active_array(ha, i);
4777 if (srb != NULL) {
f4f5df23 4778 srb->cmd->result = res;
09a0f719 4779 kref_put(&srb->srb_ref, qla4xxx_srb_compl);
afaf5a2d
DS		 4780 }
4781 }
4782 spin_unlock_irqrestore(&ha->hardware_lock, flags);
afaf5a2d
DS		 4783}
4784
f4f5df23
VC		 4785void qla4xxx_dead_adapter_cleanup(struct scsi_qla_host *ha)
4786{
4787 clear_bit(AF_ONLINE, &ha->flags);
4788
4789 /* Disable the board */
4790 ql4_printk(KERN_INFO, ha, "Disabling the board\n");
f4f5df23
VC		 4791
4792 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
4793 qla4xxx_mark_all_devices_missing(ha);
4794 clear_bit(AF_INIT_DONE, &ha->flags);
4795}
4796
b3a271a9
MR		 4797static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session)
4798{
4799 struct iscsi_session *sess;
4800 struct ddb_entry *ddb_entry;
4801
4802 sess = cls_session->dd_data;
4803 ddb_entry = sess->dd_data;
4804 ddb_entry->fw_ddb_device_state = DDB_DS_SESSION_FAILED;
13483730
MC		 4805
4806 if (ddb_entry->ddb_type == FLASH_DDB)
4807 iscsi_block_session(ddb_entry->sess);
4808 else
4809 iscsi_session_failure(cls_session->dd_data,
4810 ISCSI_ERR_CONN_FAILED);
b3a271a9
MR		 4811}
4812
afaf5a2d
DS		 4813/**
4814 * qla4xxx_recover_adapter - recovers adapter after a fatal error
4815 * @ha: Pointer to host adapter structure.
afaf5a2d 4816 **/
f4f5df23 4817static int qla4xxx_recover_adapter(struct scsi_qla_host *ha)
afaf5a2d 4818{
f4f5df23
VC		 4819 int status = QLA_ERROR;
4820 uint8_t reset_chip = 0;
8e0f3a66 4821 uint32_t dev_state;
9ee91a38 4822 unsigned long wait;
afaf5a2d
DS		 4823
4824 /* Stall incoming I/O until we are done */
f4f5df23 4825 scsi_block_requests(ha->host);
afaf5a2d 4826 clear_bit(AF_ONLINE, &ha->flags);
b3a271a9 4827 clear_bit(AF_LINK_UP, &ha->flags);
50a29aec 4828
f4f5df23 4829 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: adapter OFFLINE\n", __func__));
afaf5a2d 4830
f4f5df23 4831 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
afaf5a2d 4832
b37ca418 4833 if ((is_qla8032(ha) || is_qla8042(ha)) &&
546fef27
TP		 4834 !test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) {
4835 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
4836 __func__);
4837 /* disable pause frame for ISP83xx */
4838 qla4_83xx_disable_pause(ha);
4839 }
4840
b3a271a9
MR		 4841 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session);
4842
f4f5df23
VC		 4843 if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
4844 reset_chip = 1;
afaf5a2d 4845
f4f5df23
VC		 4846 /* For the DPC_RESET_HA_INTR case (ISP-4xxx specific)
4847 * do not reset adapter, jump to initialize_adapter */
4848 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
4849 status = QLA_SUCCESS;
4850 goto recover_ha_init_adapter;
4851 }
afaf5a2d 4852
6e7b4292 4853 /* For the ISP-8xxx adapter, issue a stop_firmware if invoked
f4f5df23 4854 * from eh_host_reset or ioctl module */
6e7b4292 4855 if (is_qla80XX(ha) && !reset_chip &&
f4f5df23
VC		 4856 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) {
4857
4858 DEBUG2(ql4_printk(KERN_INFO, ha,
4859 "scsi%ld: %s - Performing stop_firmware...\n",
4860 ha->host_no, __func__));
4861 status = ha->isp_ops->reset_firmware(ha);
4862 if (status == QLA_SUCCESS) {
f4f5df23
VC		 4863 ha->isp_ops->disable_intrs(ha);
4864 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
4865 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
4866 } else {
4867 /* If the stop_firmware fails then
4868 * reset the entire chip */
4869 reset_chip = 1;
4870 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
4871 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4872 }
4873 }
dca05c4c 4874
f4f5df23 4875 /* Issue full chip reset if recovering from a catastrophic error,
6e7b4292 4876 * or if stop_firmware fails for ISP-8xxx.
f4f5df23 4877 * This is the default case for ISP-4xxx */
ee996a69
VC		 4878 if (is_qla40XX(ha) || reset_chip) {
4879 if (is_qla40XX(ha))
9ee91a38
SS		 4880 goto chip_reset;
4881
6e7b4292 4882 /* Check if 8XXX firmware is alive or not
9ee91a38
SS		 4883 * We may have arrived here from NEED_RESET
4884 * detection only */
4885 if (test_bit(AF_FW_RECOVERY, &ha->flags))
4886 goto chip_reset;
4887
4888 wait = jiffies + (FW_ALIVE_WAIT_TOV * HZ);
4889 while (time_before(jiffies, wait)) {
4890 if (qla4_8xxx_check_fw_alive(ha)) {
4891 qla4xxx_mailbox_premature_completion(ha);
4892 break;
4893 }
4894
4895 set_current_state(TASK_UNINTERRUPTIBLE);
4896 schedule_timeout(HZ);
4897 }
da106212 4898chip_reset:
2bd1e2be
NJ		 4899 if (!test_bit(AF_FW_RECOVERY, &ha->flags))
4900 qla4xxx_cmd_wait(ha);
da106212 4901
f4f5df23 4902 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
f4f5df23
VC		 4903 DEBUG2(ql4_printk(KERN_INFO, ha,
4904 "scsi%ld: %s - Performing chip reset..\n",
4905 ha->host_no, __func__));
4906 status = ha->isp_ops->reset_chip(ha);
61d9a2b6 4907 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
f4f5df23 4908 }
afaf5a2d
DS		 4909
4910 /* Flush any pending ddb changed AENs */
4911 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
4912
f4f5df23
VC		 4913recover_ha_init_adapter:
4914 /* Upon successful firmware/chip reset, re-initialize the adapter */
afaf5a2d 4915 if (status == QLA_SUCCESS) {
f4f5df23
VC		 4916 /* For ISP-4xxx, force function 1 to always initialize
4917 * before function 3 to prevent both funcions from
4918 * stepping on top of the other */
ee996a69 4919 if (is_qla40XX(ha) && (ha->mac_index == 3))
f4f5df23
VC		 4920 ssleep(6);
4921
4922 /* NOTE: AF_ONLINE flag set upon successful completion of
37418cc6 4923 * qla4xxx_initialize_adapter */
13483730 4924 status = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
37418cc6
NJ		 4925 if (is_qla80XX(ha) && (status == QLA_ERROR)) {
4926 status = qla4_8xxx_check_init_adapter_retry(ha);
4927 if (status == QLA_ERROR) {
4928 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Don't retry recover adapter\n",
4929 ha->host_no, __func__);
4930 qla4xxx_dead_adapter_cleanup(ha);
4931 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
4932 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
4933 clear_bit(DPC_RESET_HA_FW_CONTEXT,
4934 &ha->dpc_flags);
4935 goto exit_recover;
4936 }
4937 }
afaf5a2d
DS		 4938 }
4939
f4f5df23
VC		 4940 /* Retry failed adapter initialization, if necessary
4941 * Do not retry initialize_adapter for RESET_HA_INTR (ISP-4xxx specific)
4942 * case to prevent ping-pong resets between functions */
4943 if (!test_bit(AF_ONLINE, &ha->flags) &&
4944 !test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
afaf5a2d 4945 /* Adapter initialization failed, see if we can retry
f4f5df23
VC		 4946 * resetting the ha.
4947 * Since we don't want to block the DPC for too long
4948 * with multiple resets in the same thread,
4949 * utilize DPC to retry */
6e7b4292 4950 if (is_qla80XX(ha)) {
33693c7a
VC		 4951 ha->isp_ops->idc_lock(ha);
4952 dev_state = qla4_8xxx_rd_direct(ha,
4953 QLA8XXX_CRB_DEV_STATE);
4954 ha->isp_ops->idc_unlock(ha);
de8c72da 4955 if (dev_state == QLA8XXX_DEV_FAILED) {
8e0f3a66
SR		 4956 ql4_printk(KERN_INFO, ha, "%s: don't retry "
4957 "recover adapter. H/W is in Failed "
4958 "state\n", __func__);
4959 qla4xxx_dead_adapter_cleanup(ha);
4960 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
4961 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
4962 clear_bit(DPC_RESET_HA_FW_CONTEXT,
4963 &ha->dpc_flags);
4964 status = QLA_ERROR;
4965
4966 goto exit_recover;
4967 }
4968 }
4969
afaf5a2d
DS		 4970 if (!test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags)) {
4971 ha->retry_reset_ha_cnt = MAX_RESET_HA_RETRIES;
4972 DEBUG2(printk("scsi%ld: recover adapter - retrying "
4973 "(%d) more times\n", ha->host_no,
4974 ha->retry_reset_ha_cnt));
4975 set_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
4976 status = QLA_ERROR;
4977 } else {
4978 if (ha->retry_reset_ha_cnt > 0) {
4979 /* Schedule another Reset HA--DPC will retry */
4980 ha->retry_reset_ha_cnt--;
4981 DEBUG2(printk("scsi%ld: recover adapter - "
4982 "retry remaining %d\n",
4983 ha->host_no,
4984 ha->retry_reset_ha_cnt));
4985 status = QLA_ERROR;
4986 }
4987
4988 if (ha->retry_reset_ha_cnt == 0) {
4989 /* Recover adapter retries have been exhausted.
4990 * Adapter DEAD */
4991 DEBUG2(printk("scsi%ld: recover adapter "
4992 "failed - board disabled\n",
4993 ha->host_no));
f4f5df23 4994 qla4xxx_dead_adapter_cleanup(ha);
afaf5a2d
DS		 4995 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
4996 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
f4f5df23 4997 clear_bit(DPC_RESET_HA_FW_CONTEXT,
afaf5a2d
DS		 4998 &ha->dpc_flags);
4999 status = QLA_ERROR;
5000 }
5001 }
5002 } else {
5003 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
f4f5df23 5004 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
afaf5a2d
DS		 5005 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
5006 }
5007
8e0f3a66 5008exit_recover:
afaf5a2d
DS		 5009 ha->adapter_error_count++;
5010
f4f5df23
VC		 5011 if (test_bit(AF_ONLINE, &ha->flags))
5012 ha->isp_ops->enable_intrs(ha);
5013
5014 scsi_unblock_requests(ha->host);
5015
5016 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
5017 DEBUG2(printk("scsi%ld: recover adapter: %s\n", ha->host_no,
25985edc 5018 status == QLA_ERROR ? "FAILED" : "SUCCEEDED"));
afaf5a2d 5019
afaf5a2d
DS		 5020 return status;
5021}
5022
b3a271a9 5023static void qla4xxx_relogin_devices(struct iscsi_cls_session *cls_session)
2d7924e6 5024{
b3a271a9
MR		 5025 struct iscsi_session *sess;
5026 struct ddb_entry *ddb_entry;
5027 struct scsi_qla_host *ha;
2d7924e6 5028
b3a271a9
MR		 5029 sess = cls_session->dd_data;
5030 ddb_entry = sess->dd_data;
5031 ha = ddb_entry->ha;
5032 if (!iscsi_is_session_online(cls_session)) {
5033 if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) {
5034 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5035 " unblock session\n", ha->host_no, __func__,
5036 ddb_entry->fw_ddb_index);
5037 iscsi_unblock_session(ddb_entry->sess);
5038 } else {
5039 /* Trigger relogin */
13483730 5040 if (ddb_entry->ddb_type == FLASH_DDB) {
99c6a33b
AC		 5041 if (!(test_bit(DF_RELOGIN, &ddb_entry->flags) ||
5042 test_bit(DF_DISABLE_RELOGIN,
5043 &ddb_entry->flags)))
13483730
MC		 5044 qla4xxx_arm_relogin_timer(ddb_entry);
5045 } else
5046 iscsi_session_failure(cls_session->dd_data,
5047 ISCSI_ERR_CONN_FAILED);
2d7924e6
VC		 5048 }
5049 }
5050}
5051
13483730
MC		 5052int qla4xxx_unblock_flash_ddb(struct iscsi_cls_session *cls_session)
5053{
5054 struct iscsi_session *sess;
5055 struct ddb_entry *ddb_entry;
5056 struct scsi_qla_host *ha;
5057
5058 sess = cls_session->dd_data;
5059 ddb_entry = sess->dd_data;
5060 ha = ddb_entry->ha;
5061 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5062 " unblock session\n", ha->host_no, __func__,
5063 ddb_entry->fw_ddb_index);
5064
5065 iscsi_unblock_session(ddb_entry->sess);
5066
5067 /* Start scan target */
5068 if (test_bit(AF_ONLINE, &ha->flags)) {
5069 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5070 " start scan\n", ha->host_no, __func__,
5071 ddb_entry->fw_ddb_index);
5072 scsi_queue_work(ha->host, &ddb_entry->sess->scan_work);
5073 }
5074 return QLA_SUCCESS;
5075}
5076
5077int qla4xxx_unblock_ddb(struct iscsi_cls_session *cls_session)
5078{
5079 struct iscsi_session *sess;
5080 struct ddb_entry *ddb_entry;
5081 struct scsi_qla_host *ha;
80c53e64 5082 int status = QLA_SUCCESS;
13483730
MC		 5083
5084 sess = cls_session->dd_data;
5085 ddb_entry = sess->dd_data;
5086 ha = ddb_entry->ha;
5087 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5088 " unblock user space session\n", ha->host_no, __func__,
5089 ddb_entry->fw_ddb_index);
13483730 5090
80c53e64
MR		 5091 if (!iscsi_is_session_online(cls_session)) {
5092 iscsi_conn_start(ddb_entry->conn);
5093 iscsi_conn_login_event(ddb_entry->conn,
5094 ISCSI_CONN_STATE_LOGGED_IN);
5095 } else {
5096 ql4_printk(KERN_INFO, ha,
5097 "scsi%ld: %s: ddb[%d] session [%d] already logged in\n",
5098 ha->host_no, __func__, ddb_entry->fw_ddb_index,
5099 cls_session->sid);
5100 status = QLA_ERROR;
5101 }
5102
5103 return status;
13483730
MC		 5104}
5105
b3a271a9
MR		 5106static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha)
5107{
5108 iscsi_host_for_each_session(ha->host, qla4xxx_relogin_devices);
5109}
5110
13483730
MC		 5111static void qla4xxx_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)
5112{
5113 uint16_t relogin_timer;
5114 struct iscsi_session *sess;
5115 struct ddb_entry *ddb_entry;
5116 struct scsi_qla_host *ha;
5117
5118 sess = cls_sess->dd_data;
5119 ddb_entry = sess->dd_data;
5120 ha = ddb_entry->ha;
5121
5122 relogin_timer = max(ddb_entry->default_relogin_timeout,
5123 (uint16_t)RELOGIN_TOV);
5124 atomic_set(&ddb_entry->relogin_timer, relogin_timer);
5125
5126 DEBUG2(ql4_printk(KERN_INFO, ha,
5127 "scsi%ld: Relogin index [%d]. TOV=%d\n", ha->host_no,
5128 ddb_entry->fw_ddb_index, relogin_timer));
5129
5130 qla4xxx_login_flash_ddb(cls_sess);
5131}
5132
5133static void qla4xxx_dpc_relogin(struct iscsi_cls_session *cls_sess)
5134{
5135 struct iscsi_session *sess;
5136 struct ddb_entry *ddb_entry;
5137 struct scsi_qla_host *ha;
5138
5139 sess = cls_sess->dd_data;
5140 ddb_entry = sess->dd_data;
5141 ha = ddb_entry->ha;
5142
5143 if (!(ddb_entry->ddb_type == FLASH_DDB))
5144 return;
5145
99c6a33b
AC		 5146 if (test_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags))
5147 return;
5148
13483730
MC		 5149 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags) &&
5150 !iscsi_is_session_online(cls_sess)) {
5151 DEBUG2(ql4_printk(KERN_INFO, ha,
5152 "relogin issued\n"));
5153 qla4xxx_relogin_flash_ddb(cls_sess);
5154 }
5155}
5156
f4f5df23
VC		 5157void qla4xxx_wake_dpc(struct scsi_qla_host *ha)
5158{
1b46807e 5159 if (ha->dpc_thread)
f4f5df23 5160 queue_work(ha->dpc_thread, &ha->dpc_work);
f4f5df23
VC		 5161}
5162
ff884430
VC		 5163static struct qla4_work_evt *
5164qla4xxx_alloc_work(struct scsi_qla_host *ha, uint32_t data_size,
5165 enum qla4_work_type type)
5166{
5167 struct qla4_work_evt *e;
5168 uint32_t size = sizeof(struct qla4_work_evt) + data_size;
5169
5170 e = kzalloc(size, GFP_ATOMIC);
5171 if (!e)
5172 return NULL;
5173
5174 INIT_LIST_HEAD(&e->list);
5175 e->type = type;
5176 return e;
5177}
5178
5179static void qla4xxx_post_work(struct scsi_qla_host *ha,
5180 struct qla4_work_evt *e)
5181{
5182 unsigned long flags;
5183
5184 spin_lock_irqsave(&ha->work_lock, flags);
5185 list_add_tail(&e->list, &ha->work_list);
5186 spin_unlock_irqrestore(&ha->work_lock, flags);
5187 qla4xxx_wake_dpc(ha);
5188}
5189
5190int qla4xxx_post_aen_work(struct scsi_qla_host *ha,
5191 enum iscsi_host_event_code aen_code,
5192 uint32_t data_size, uint8_t *data)
5193{
5194 struct qla4_work_evt *e;
5195
5196 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_AEN);
5197 if (!e)
5198 return QLA_ERROR;
5199
5200 e->u.aen.code = aen_code;
5201 e->u.aen.data_size = data_size;
5202 memcpy(e->u.aen.data, data, data_size);
5203
5204 qla4xxx_post_work(ha, e);
5205
5206 return QLA_SUCCESS;
5207}
5208
c0b9d3f7
VC		 5209int qla4xxx_post_ping_evt_work(struct scsi_qla_host *ha,
5210 uint32_t status, uint32_t pid,
5211 uint32_t data_size, uint8_t *data)
5212{
5213 struct qla4_work_evt *e;
5214
5215 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_PING_STATUS);
5216 if (!e)
5217 return QLA_ERROR;
5218
5219 e->u.ping.status = status;
5220 e->u.ping.pid = pid;
5221 e->u.ping.data_size = data_size;
5222 memcpy(e->u.ping.data, data, data_size);
5223
5224 qla4xxx_post_work(ha, e);
5225
5226 return QLA_SUCCESS;
5227}
5228
a7380a65 5229static void qla4xxx_do_work(struct scsi_qla_host *ha)
ff884430
VC		 5230{
5231 struct qla4_work_evt *e, *tmp;
5232 unsigned long flags;
5233 LIST_HEAD(work);
5234
5235 spin_lock_irqsave(&ha->work_lock, flags);
5236 list_splice_init(&ha->work_list, &work);
5237 spin_unlock_irqrestore(&ha->work_lock, flags);
5238
5239 list_for_each_entry_safe(e, tmp, &work, list) {
5240 list_del_init(&e->list);
5241
5242 switch (e->type) {
5243 case QLA4_EVENT_AEN:
5244 iscsi_post_host_event(ha->host_no,
5245 &qla4xxx_iscsi_transport,
5246 e->u.aen.code,
5247 e->u.aen.data_size,
5248 e->u.aen.data);
5249 break;
c0b9d3f7
VC		 5250 case QLA4_EVENT_PING_STATUS:
5251 iscsi_ping_comp_event(ha->host_no,
5252 &qla4xxx_iscsi_transport,
5253 e->u.ping.status,
5254 e->u.ping.pid,
5255 e->u.ping.data_size,
5256 e->u.ping.data);
5257 break;
ff884430
VC		 5258 default:
5259 ql4_printk(KERN_WARNING, ha, "event type: 0x%x not "
5260 "supported", e->type);
5261 }
5262 kfree(e);
5263 }
5264}
5265
afaf5a2d
DS		 5266/**
5267 * qla4xxx_do_dpc - dpc routine
5268 * @data: in our case pointer to adapter structure
5269 *
5270 * This routine is a task that is schedule by the interrupt handler
5271 * to perform the background processing for interrupts. We put it
5272 * on a task queue that is consumed whenever the scheduler runs; that's
5273 * so you can do anything (i.e. put the process to sleep etc). In fact,
5274 * the mid-level tries to sleep when it reaches the driver threshold
5275 * "host->can_queue". This can cause a panic if we were in our interrupt code.
5276 **/
c4028958 5277static void qla4xxx_do_dpc(struct work_struct *work)
afaf5a2d 5278{
c4028958
DH		 5279 struct scsi_qla_host *ha =
5280 container_of(work, struct scsi_qla_host, dpc_work);
477ffb9d 5281 int status = QLA_ERROR;
afaf5a2d 5282
a7e5688d
VC		 5283 DEBUG2(ql4_printk(KERN_INFO, ha,
5284 "scsi%ld: %s: DPC handler waking up. flags = 0x%08lx, dpc_flags = 0x%08lx\n",
5285 ha->host_no, __func__, ha->flags, ha->dpc_flags));
afaf5a2d
DS		 5286
5287 /* Initialization not yet finished. Don't do anything yet. */
5288 if (!test_bit(AF_INIT_DONE, &ha->flags))
1b46807e 5289 return;
afaf5a2d 5290
2232be0d
LC		 5291 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
5292 DEBUG2(printk(KERN_INFO "scsi%ld: %s: flags = %lx\n",
5293 ha->host_no, __func__, ha->flags));
1b46807e 5294 return;
2232be0d
LC		 5295 }
5296
ff884430
VC		 5297 /* post events to application */
5298 qla4xxx_do_work(ha);
5299
6e7b4292 5300 if (is_qla80XX(ha)) {
f4f5df23 5301 if (test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags)) {
b37ca418 5302 if (is_qla8032(ha) || is_qla8042(ha)) {
546fef27
TP		 5303 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
5304 __func__);
5305 /* disable pause frame for ISP83xx */
5306 qla4_83xx_disable_pause(ha);
5307 }
5308
33693c7a
VC		 5309 ha->isp_ops->idc_lock(ha);
5310 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
5311 QLA8XXX_DEV_FAILED);
5312 ha->isp_ops->idc_unlock(ha);
f4f5df23
VC		 5313 ql4_printk(KERN_INFO, ha, "HW State: FAILED\n");
5314 qla4_8xxx_device_state_handler(ha);
5315 }
320a61de 5316
7ab284c9
NJ		 5317 if (test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags)) {
5318 if (is_qla8042(ha)) {
5319 if (ha->idc_info.info2 &
5320 ENABLE_INTERNAL_LOOPBACK) {
5321 ql4_printk(KERN_INFO, ha, "%s: Disabling ACB\n",
5322 __func__);
5323 status = qla4_84xx_config_acb(ha,
5324 ACB_CONFIG_DISABLE);
5325 if (status != QLA_SUCCESS) {
5326 ql4_printk(KERN_INFO, ha, "%s: ACB config failed\n",
5327 __func__);
5328 }
5329 }
5330 }
320a61de 5331 qla4_83xx_post_idc_ack(ha);
7ab284c9
NJ		 5332 clear_bit(DPC_POST_IDC_ACK, &ha->dpc_flags);
5333 }
5334
5335 if (is_qla8042(ha) &&
5336 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags)) {
5337 ql4_printk(KERN_INFO, ha, "%s: Restoring ACB\n",
5338 __func__);
5339 if (qla4_84xx_config_acb(ha, ACB_CONFIG_SET) !=
5340 QLA_SUCCESS) {
5341 ql4_printk(KERN_INFO, ha, "%s: ACB config failed ",
5342 __func__);
5343 }
5344 clear_bit(DPC_RESTORE_ACB, &ha->dpc_flags);
5345 }
320a61de 5346
f4f5df23
VC		 5347 if (test_and_clear_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) {
5348 qla4_8xxx_need_qsnt_handler(ha);
5349 }
5350 }
5351
5352 if (!test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) &&
5353 (test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
afaf5a2d 5354 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
f4f5df23 5355 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))) {
6e7b4292 5356 if ((is_qla8022(ha) && ql4xdontresethba) ||
b37ca418
VC		 5357 ((is_qla8032(ha) || is_qla8042(ha)) &&
5358 qla4_83xx_idc_dontreset(ha))) {
f4f5df23
VC		 5359 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n",
5360 ha->host_no, __func__));
5361 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
5362 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags);
5363 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
5364 goto dpc_post_reset_ha;
5365 }
5366 if (test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) ||
5367 test_bit(DPC_RESET_HA, &ha->dpc_flags))
5368 qla4xxx_recover_adapter(ha);
afaf5a2d 5369
477ffb9d 5370 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
afaf5a2d 5371 uint8_t wait_time = RESET_INTR_TOV;
afaf5a2d 5372
afaf5a2d
DS		 5373 while ((readw(&ha->reg->ctrl_status) &
5374 (CSR_SOFT_RESET | CSR_FORCE_SOFT_RESET)) != 0) {
5375 if (--wait_time == 0)
5376 break;
afaf5a2d 5377 msleep(1000);
afaf5a2d 5378 }
afaf5a2d
DS		 5379 if (wait_time == 0)
5380 DEBUG2(printk("scsi%ld: %s: SR|FSR "
5381 "bit not cleared-- resetting\n",
5382 ha->host_no, __func__));
f4f5df23 5383 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
477ffb9d
DS		 5384 if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS) {
5385 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
f4f5df23 5386 status = qla4xxx_recover_adapter(ha);
477ffb9d
DS		 5387 }
5388 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags);
5389 if (status == QLA_SUCCESS)
f4f5df23 5390 ha->isp_ops->enable_intrs(ha);
afaf5a2d
DS		 5391 }
5392 }
5393
f4f5df23 5394dpc_post_reset_ha:
afaf5a2d
DS		 5395 /* ---- process AEN? --- */
5396 if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags))
5397 qla4xxx_process_aen(ha, PROCESS_ALL_AENS);
5398
5399 /* ---- Get DHCP IP Address? --- */
5400 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags))
5401 qla4xxx_get_dhcp_ip_address(ha);
5402
13483730
MC		 5403 /* ---- relogin device? --- */
5404 if (adapter_up(ha) &&
5405 test_and_clear_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags)) {
5406 iscsi_host_for_each_session(ha->host, qla4xxx_dpc_relogin);
5407 }
5408
065aa1b4 5409 /* ---- link change? --- */
026fbd3a
NJ		 5410 if (!test_bit(AF_LOOPBACK, &ha->flags) &&
5411 test_and_clear_bit(DPC_LINK_CHANGED, &ha->dpc_flags)) {
065aa1b4
VC		 5412 if (!test_bit(AF_LINK_UP, &ha->flags)) {
5413 /* ---- link down? --- */
2d7924e6 5414 qla4xxx_mark_all_devices_missing(ha);
065aa1b4
VC		 5415 } else {
5416 /* ---- link up? --- *
5417 * F/W will auto login to all devices ONLY ONCE after
5418 * link up during driver initialization and runtime
5419 * fatal error recovery. Therefore, the driver must
5420 * manually relogin to devices when recovering from
5421 * connection failures, logouts, expired KATO, etc. */
13483730
MC		 5422 if (test_and_clear_bit(AF_BUILD_DDB_LIST, &ha->flags)) {
5423 qla4xxx_build_ddb_list(ha, ha->is_reset);
5424 iscsi_host_for_each_session(ha->host,
5425 qla4xxx_login_flash_ddb);
5426 } else
5427 qla4xxx_relogin_all_devices(ha);
065aa1b4
VC		 5428 }
5429 }
906cbf3d
NJ		 5430 if (test_and_clear_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags)) {
5431 if (qla4xxx_sysfs_ddb_export(ha))
5432 ql4_printk(KERN_ERR, ha, "%s: Error exporting ddb to sysfs\n",
5433 __func__);
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
bdbb9662
RS		 6032 strlcpy(password, chap_table->secret, QL4_CHAP_MAX_SECRET_LEN);
6033 strlcpy(username, chap_table->name, QL4_CHAP_MAX_NAME_LEN);
28deb45c
LC		 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;
bdbb9662
RS		 6263 strlcpy(tddb->iscsi_name, sess->targetname, ISCSI_NAME_SIZE);
6264 strlcpy(tddb->ip_addr, conn->persistent_address, DDB_IPADDR_LEN);
13483730
MC		 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
bdbb9662 7769 strlcpy(flash_tddb->iscsi_name, fnode_sess->targetname,
1e9e2be3
AC		 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 **/
906cbf3d 8412int qla4xxx_sysfs_ddb_export(struct scsi_qla_host *ha)
1e9e2be3
AC		 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
906cbf3d
NJ		 8850 set_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags);
8851 /* Perform the build ddb list and login to each */
13483730
MC		 8852 qla4xxx_build_ddb_list(ha, INIT_ADAPTER);
8853 iscsi_host_for_each_session(ha->host, qla4xxx_login_flash_ddb);
1dc8ed5d 8854 qla4xxx_wait_login_resp_boot_tgt(ha);
13483730
MC		 8855
8856 qla4xxx_create_chap_list(ha);
8857
ed1086e0 8858 qla4xxx_create_ifaces(ha);
afaf5a2d
DS		 8859 return 0;
8860
b3a271a9
MR		 8861remove_host:
8862 scsi_remove_host(ha->host);
8863
afaf5a2d
DS		 8864probe_failed:
8865 qla4xxx_free_adapter(ha);
f4f5df23
VC		 8866
8867probe_failed_ioconfig:
2232be0d 8868 pci_disable_pcie_error_reporting(pdev);
afaf5a2d
DS		 8869 scsi_host_put(ha->host);
8870
8871probe_disable_device:
8872 pci_disable_device(pdev);
8873
8874 return ret;
8875}
8876
7eece5a0
KH		 8877/**
8878 * qla4xxx_prevent_other_port_reinit - prevent other port from re-initialize
8879 * @ha: pointer to adapter structure
8880 *
8881 * Mark the other ISP-4xxx port to indicate that the driver is being removed,
8882 * so that the other port will not re-initialize while in the process of
8883 * removing the ha due to driver unload or hba hotplug.
8884 **/
8885static void qla4xxx_prevent_other_port_reinit(struct scsi_qla_host *ha)
8886{
8887 struct scsi_qla_host *other_ha = NULL;
8888 struct pci_dev *other_pdev = NULL;
8889 int fn = ISP4XXX_PCI_FN_2;
8890
8891 /*iscsi function numbers for ISP4xxx is 1 and 3*/
8892 if (PCI_FUNC(ha->pdev->devfn) & BIT_1)
8893 fn = ISP4XXX_PCI_FN_1;
8894
8895 other_pdev =
8896 pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus),
8897 ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
8898 fn));
8899
8900 /* Get other_ha if other_pdev is valid and state is enable*/
8901 if (other_pdev) {
8902 if (atomic_read(&other_pdev->enable_cnt)) {
8903 other_ha = pci_get_drvdata(other_pdev);
8904 if (other_ha) {
8905 set_bit(AF_HA_REMOVAL, &other_ha->flags);
8906 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: "
8907 "Prevent %s reinit\n", __func__,
8908 dev_name(&other_ha->pdev->dev)));
8909 }
8910 }
8911 pci_dev_put(other_pdev);
8912 }
8913}
8914
28d958ba
VC		 8915static void qla4xxx_destroy_ddb(struct scsi_qla_host *ha,
8916 struct ddb_entry *ddb_entry)
8917{
8918 struct dev_db_entry *fw_ddb_entry = NULL;
8919 dma_addr_t fw_ddb_entry_dma;
8920 unsigned long wtime;
8921 uint32_t ddb_state;
8922 int options;
8923 int status;
8924
8925 options = LOGOUT_OPTION_CLOSE_SESSION;
8926 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR) {
8927 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__);
8928 goto clear_ddb;
8929 }
8930
8931 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8932 &fw_ddb_entry_dma, GFP_KERNEL);
8933 if (!fw_ddb_entry) {
8934 ql4_printk(KERN_ERR, ha,
8935 "%s: Unable to allocate dma buffer\n", __func__);
8936 goto clear_ddb;
8937 }
8938
8939 wtime = jiffies + (HZ * LOGOUT_TOV);
8940 do {
8941 status = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
8942 fw_ddb_entry, fw_ddb_entry_dma,
8943 NULL, NULL, &ddb_state, NULL,
8944 NULL, NULL);
8945 if (status == QLA_ERROR)
8946 goto free_ddb;
8947
8948 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) ||
8949 (ddb_state == DDB_DS_SESSION_FAILED))
8950 goto free_ddb;
8951
8952 schedule_timeout_uninterruptible(HZ);
8953 } while ((time_after(wtime, jiffies)));
8954
8955free_ddb:
8956 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8957 fw_ddb_entry, fw_ddb_entry_dma);
8958clear_ddb:
8959 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
8960}
8961
13483730
MC		 8962static void qla4xxx_destroy_fw_ddb_session(struct scsi_qla_host *ha)
8963{
8964 struct ddb_entry *ddb_entry;
13483730
MC		 8965 int idx;
8966
8967 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
8968
8969 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
8970 if ((ddb_entry != NULL) &&
8971 (ddb_entry->ddb_type == FLASH_DDB)) {
8972
28d958ba 8973 qla4xxx_destroy_ddb(ha, ddb_entry);
13483730
MC		 8974 /*
8975 * we have decremented the reference count of the driver
8976 * when we setup the session to have the driver unload
8977 * to be seamless without actually destroying the
8978 * session
8979 **/
8980 try_module_get(qla4xxx_iscsi_transport.owner);
8981 iscsi_destroy_endpoint(ddb_entry->conn->ep);
8982 qla4xxx_free_ddb(ha, ddb_entry);
8983 iscsi_session_teardown(ddb_entry->sess);
8984 }
8985 }
8986}
afaf5a2d 8987/**
59e13d48 8988 * qla4xxx_remove_adapter - callback function to remove adapter.
afaf5a2d
DS		 8989 * @pci_dev: PCI device pointer
8990 **/
6f039790 8991static void qla4xxx_remove_adapter(struct pci_dev *pdev)
afaf5a2d
DS		 8992{
8993 struct scsi_qla_host *ha;
8994
f8b0751d
VC		 8995 /*
8996 * If the PCI device is disabled then it means probe_adapter had
8997 * failed and resources already cleaned up on probe_adapter exit.
8998 */
8999 if (!pci_is_enabled(pdev))
9000 return;
9001
afaf5a2d
DS		 9002 ha = pci_get_drvdata(pdev);
9003
ee996a69 9004 if (is_qla40XX(ha))
7eece5a0 9005 qla4xxx_prevent_other_port_reinit(ha);
bee4fe8e 9006
ed1086e0
VC		 9007 /* destroy iface from sysfs */
9008 qla4xxx_destroy_ifaces(ha);
9009
13483730 9010 if ((!ql4xdisablesysfsboot) && ha->boot_kset)
2a991c21
MR		 9011 iscsi_boot_destroy_kset(ha->boot_kset);
9012
13483730 9013 qla4xxx_destroy_fw_ddb_session(ha);
068237c8 9014 qla4_8xxx_free_sysfs_attr(ha);
13483730 9015
1e9e2be3 9016 qla4xxx_sysfs_ddb_remove(ha);
afaf5a2d
DS		 9017 scsi_remove_host(ha->host);
9018
9019 qla4xxx_free_adapter(ha);
9020
9021 scsi_host_put(ha->host);
9022
2232be0d 9023 pci_disable_pcie_error_reporting(pdev);
f4f5df23 9024 pci_disable_device(pdev);
afaf5a2d
DS		 9025}
9026
9027/**
9028 * qla4xxx_config_dma_addressing() - Configure OS DMA addressing method.
9029 * @ha: HA context
9030 *
9031 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
9032 * supported addressing method.
9033 */
47975477 9034static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha)
afaf5a2d
DS		 9035{
9036 int retval;
9037
9038 /* Update our PCI device dma_mask for full 64 bit mask */
6a35528a
YH		 9039 if (pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(64)) == 0) {
9040 if (pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) {
afaf5a2d
DS		 9041 dev_dbg(&ha->pdev->dev,
9042 "Failed to set 64 bit PCI consistent mask; "
9043 "using 32 bit.\n");
9044 retval = pci_set_consistent_dma_mask(ha->pdev,
284901a9 9045 DMA_BIT_MASK(32));
afaf5a2d
DS		 9046 }
9047 } else
284901a9 9048 retval = pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(32));
afaf5a2d
DS		 9049}
9050
9051static int qla4xxx_slave_alloc(struct scsi_device *sdev)
9052{
b3a271a9
MR		 9053 struct iscsi_cls_session *cls_sess;
9054 struct iscsi_session *sess;
9055 struct ddb_entry *ddb;
8bb4033d 9056 int queue_depth = QL4_DEF_QDEPTH;
afaf5a2d 9057
b3a271a9
MR		 9058 cls_sess = starget_to_session(sdev->sdev_target);
9059 sess = cls_sess->dd_data;
9060 ddb = sess->dd_data;
9061
afaf5a2d
DS		 9062 sdev->hostdata = ddb;
9063 sdev->tagged_supported = 1;
8bb4033d
VC		 9064
9065 if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU)
9066 queue_depth = ql4xmaxqdepth;
9067
9068 scsi_activate_tcq(sdev, queue_depth);
afaf5a2d
DS		 9069 return 0;
9070}
9071
9072static int qla4xxx_slave_configure(struct scsi_device *sdev)
9073{
9074 sdev->tagged_supported = 1;
9075 return 0;
9076}
9077
9078static void qla4xxx_slave_destroy(struct scsi_device *sdev)
9079{
9080 scsi_deactivate_tcq(sdev, 1);
9081}
9082
f7b4aa63
TP		 9083static int qla4xxx_change_queue_depth(struct scsi_device *sdev, int qdepth,
9084 int reason)
9085{
9086 if (!ql4xqfulltracking)
9087 return -EOPNOTSUPP;
9088
9089 return iscsi_change_queue_depth(sdev, qdepth, reason);
9090}
9091
afaf5a2d
DS		 9092/**
9093 * qla4xxx_del_from_active_array - returns an active srb
9094 * @ha: Pointer to host adapter structure.
fd589a8f 9095 * @index: index into the active_array
afaf5a2d
DS		 9096 *
9097 * This routine removes and returns the srb at the specified index
9098 **/
f4f5df23
VC		 9099struct srb *qla4xxx_del_from_active_array(struct scsi_qla_host *ha,
9100 uint32_t index)
afaf5a2d
DS		 9101{
9102 struct srb *srb = NULL;
5369887a 9103 struct scsi_cmnd *cmd = NULL;
afaf5a2d 9104
5369887a
VC		 9105 cmd = scsi_host_find_tag(ha->host, index);
9106 if (!cmd)
afaf5a2d
DS		 9107 return srb;
9108
5369887a
VC		 9109 srb = (struct srb *)CMD_SP(cmd);
9110 if (!srb)
afaf5a2d
DS		 9111 return srb;
9112
9113 /* update counters */
9114 if (srb->flags & SRB_DMA_VALID) {
afaf5a2d
DS		 9115 ha->iocb_cnt -= srb->iocb_cnt;
9116 if (srb->cmd)
5369887a
VC		 9117 srb->cmd->host_scribble =
9118 (unsigned char *)(unsigned long) MAX_SRBS;
afaf5a2d
DS		 9119 }
9120 return srb;
9121}
9122
afaf5a2d
DS		 9123/**
9124 * qla4xxx_eh_wait_on_command - waits for command to be returned by firmware
09a0f719 9125 * @ha: Pointer to host adapter structure.
afaf5a2d
DS		 9126 * @cmd: Scsi Command to wait on.
9127 *
9128 * This routine waits for the command to be returned by the Firmware
9129 * for some max time.
9130 **/
9131static int qla4xxx_eh_wait_on_command(struct scsi_qla_host *ha,
9132 struct scsi_cmnd *cmd)
9133{
9134 int done = 0;
9135 struct srb *rp;
9136 uint32_t max_wait_time = EH_WAIT_CMD_TOV;
2232be0d
LC		 9137 int ret = SUCCESS;
9138
9139 /* Dont wait on command if PCI error is being handled
9140 * by PCI AER driver
9141 */
9142 if (unlikely(pci_channel_offline(ha->pdev)) ||
9143 (test_bit(AF_EEH_BUSY, &ha->flags))) {
9144 ql4_printk(KERN_WARNING, ha, "scsi%ld: Return from %s\n",
9145 ha->host_no, __func__);
9146 return ret;
9147 }
afaf5a2d
DS		 9148
9149 do {
9150 /* Checking to see if its returned to OS */
5369887a 9151 rp = (struct srb *) CMD_SP(cmd);
afaf5a2d
DS		 9152 if (rp == NULL) {
9153 done++;
9154 break;
9155 }
9156
9157 msleep(2000);
9158 } while (max_wait_time--);
9159
9160 return done;
9161}
9162
9163/**
9164 * qla4xxx_wait_for_hba_online - waits for HBA to come online
9165 * @ha: Pointer to host adapter structure
9166 **/
9167static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha)
9168{
9169 unsigned long wait_online;
9170
f581a3f7 9171 wait_online = jiffies + (HBA_ONLINE_TOV * HZ);
afaf5a2d
DS		 9172 while (time_before(jiffies, wait_online)) {
9173
9174 if (adapter_up(ha))
9175 return QLA_SUCCESS;
afaf5a2d
DS		 9176
9177 msleep(2000);
9178 }
9179
9180 return QLA_ERROR;
9181}
9182
9183/**
ce545039 9184 * qla4xxx_eh_wait_for_commands - wait for active cmds to finish.
fd589a8f 9185 * @ha: pointer to HBA
afaf5a2d
DS		 9186 * @t: target id
9187 * @l: lun id
9188 *
9189 * This function waits for all outstanding commands to a lun to complete. It
9190 * returns 0 if all pending commands are returned and 1 otherwise.
9191 **/
ce545039
MC		 9192static int qla4xxx_eh_wait_for_commands(struct scsi_qla_host *ha,
9193 struct scsi_target *stgt,
9194 struct scsi_device *sdev)
afaf5a2d
DS		 9195{
9196 int cnt;
9197 int status = 0;
9198 struct scsi_cmnd *cmd;
9199
9200 /*
ce545039
MC		 9201 * Waiting for all commands for the designated target or dev
9202 * in the active array
afaf5a2d
DS		 9203 */
9204 for (cnt = 0; cnt < ha->host->can_queue; cnt++) {
9205 cmd = scsi_host_find_tag(ha->host, cnt);
ce545039
MC		 9206 if (cmd && stgt == scsi_target(cmd->device) &&
9207 (!sdev || sdev == cmd->device)) {
afaf5a2d
DS		 9208 if (!qla4xxx_eh_wait_on_command(ha, cmd)) {
9209 status++;
9210 break;
9211 }
9212 }
9213 }
9214 return status;
9215}
9216
09a0f719
VC		 9217/**
9218 * qla4xxx_eh_abort - callback for abort task.
9219 * @cmd: Pointer to Linux's SCSI command structure
9220 *
9221 * This routine is called by the Linux OS to abort the specified
9222 * command.
9223 **/
9224static int qla4xxx_eh_abort(struct scsi_cmnd *cmd)
9225{
9226 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
9227 unsigned int id = cmd->device->id;
9cb78c16 9228 uint64_t lun = cmd->device->lun;
92b3e5bb 9229 unsigned long flags;
09a0f719
VC		 9230 struct srb *srb = NULL;
9231 int ret = SUCCESS;
9232 int wait = 0;
9233
9cb78c16 9234 ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%llu: Abort command issued cmd=%p, cdb=0x%x\n",
63c9e814 9235 ha->host_no, id, lun, cmd, cmd->cmnd[0]);
09a0f719 9236
92b3e5bb 9237 spin_lock_irqsave(&ha->hardware_lock, flags);
09a0f719 9238 srb = (struct srb *) CMD_SP(cmd);
92b3e5bb
MC		 9239 if (!srb) {
9240 spin_unlock_irqrestore(&ha->hardware_lock, flags);
9cb78c16 9241 ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%llu: Specified command has already completed.\n",
63c9e814 9242 ha->host_no, id, lun);
09a0f719 9243 return SUCCESS;
92b3e5bb 9244 }
09a0f719 9245 kref_get(&srb->srb_ref);
92b3e5bb 9246 spin_unlock_irqrestore(&ha->hardware_lock, flags);
09a0f719
VC		 9247
9248 if (qla4xxx_abort_task(ha, srb) != QLA_SUCCESS) {
9cb78c16 9249 DEBUG3(printk("scsi%ld:%d:%llu: Abort_task mbx failed.\n",
09a0f719
VC		 9250 ha->host_no, id, lun));
9251 ret = FAILED;
9252 } else {
9cb78c16 9253 DEBUG3(printk("scsi%ld:%d:%llu: Abort_task mbx success.\n",
09a0f719
VC		 9254 ha->host_no, id, lun));
9255 wait = 1;
9256 }
9257
9258 kref_put(&srb->srb_ref, qla4xxx_srb_compl);
9259
9260 /* Wait for command to complete */
9261 if (wait) {
9262 if (!qla4xxx_eh_wait_on_command(ha, cmd)) {
9cb78c16 9263 DEBUG2(printk("scsi%ld:%d:%llu: Abort handler timed out\n",
09a0f719
VC		 9264 ha->host_no, id, lun));
9265 ret = FAILED;
9266 }
9267 }
9268
c2660df3 9269 ql4_printk(KERN_INFO, ha,
9cb78c16 9270 "scsi%ld:%d:%llu: Abort command - %s\n",
25985edc 9271 ha->host_no, id, lun, (ret == SUCCESS) ? "succeeded" : "failed");
09a0f719
VC		 9272
9273 return ret;
9274}
9275
afaf5a2d
DS		 9276/**
9277 * qla4xxx_eh_device_reset - callback for target reset.
9278 * @cmd: Pointer to Linux's SCSI command structure
9279 *
9280 * This routine is called by the Linux OS to reset all luns on the
9281 * specified target.
9282 **/
9283static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd)
9284{
9285 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
9286 struct ddb_entry *ddb_entry = cmd->device->hostdata;
afaf5a2d
DS		 9287 int ret = FAILED, stat;
9288
612f7348 9289 if (!ddb_entry)
afaf5a2d
DS		 9290 return ret;
9291
c01be6dc
MC		 9292 ret = iscsi_block_scsi_eh(cmd);
9293 if (ret)
9294 return ret;
9295 ret = FAILED;
9296
c2660df3 9297 ql4_printk(KERN_INFO, ha,
9cb78c16 9298 "scsi%ld:%d:%d:%llu: DEVICE RESET ISSUED.\n", ha->host_no,
afaf5a2d
DS		 9299 cmd->device->channel, cmd->device->id, cmd->device->lun);
9300
9301 DEBUG2(printk(KERN_INFO
9302 "scsi%ld: DEVICE_RESET cmd=%p jiffies = 0x%lx, to=%x,"
9303 "dpc_flags=%lx, status=%x allowed=%d\n", ha->host_no,
242f9dcb 9304 cmd, jiffies, cmd->request->timeout / HZ,
afaf5a2d
DS		 9305 ha->dpc_flags, cmd->result, cmd->allowed));
9306
9307 /* FIXME: wait for hba to go online */
9308 stat = qla4xxx_reset_lun(ha, ddb_entry, cmd->device->lun);
9309 if (stat != QLA_SUCCESS) {
c2660df3 9310 ql4_printk(KERN_INFO, ha, "DEVICE RESET FAILED. %d\n", stat);
afaf5a2d
DS		 9311 goto eh_dev_reset_done;
9312 }
9313
ce545039
MC		 9314 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device),
9315 cmd->device)) {
c2660df3 9316 ql4_printk(KERN_INFO, ha,
ce545039
MC		 9317 "DEVICE RESET FAILED - waiting for "
9318 "commands.\n");
9319 goto eh_dev_reset_done;
afaf5a2d
DS		 9320 }
9321
9d562913
DS		 9322 /* Send marker. */
9323 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun,
9324 MM_LUN_RESET) != QLA_SUCCESS)
9325 goto eh_dev_reset_done;
9326
c2660df3 9327 ql4_printk(KERN_INFO, ha,
9cb78c16 9328 "scsi(%ld:%d:%d:%llu): DEVICE RESET SUCCEEDED.\n",
afaf5a2d
DS		 9329 ha->host_no, cmd->device->channel, cmd->device->id,
9330 cmd->device->lun);
9331
9332 ret = SUCCESS;
9333
9334eh_dev_reset_done:
9335
9336 return ret;
9337}
9338
ce545039
MC		 9339/**
9340 * qla4xxx_eh_target_reset - callback for target reset.
9341 * @cmd: Pointer to Linux's SCSI command structure
9342 *
9343 * This routine is called by the Linux OS to reset the target.
9344 **/
9345static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd)
9346{
9347 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
9348 struct ddb_entry *ddb_entry = cmd->device->hostdata;
c01be6dc 9349 int stat, ret;
ce545039
MC		 9350
9351 if (!ddb_entry)
9352 return FAILED;
9353
c01be6dc
MC		 9354 ret = iscsi_block_scsi_eh(cmd);
9355 if (ret)
9356 return ret;
9357
ce545039
MC		 9358 starget_printk(KERN_INFO, scsi_target(cmd->device),
9359 "WARM TARGET RESET ISSUED.\n");
9360
9361 DEBUG2(printk(KERN_INFO
9362 "scsi%ld: TARGET_DEVICE_RESET cmd=%p jiffies = 0x%lx, "
9363 "to=%x,dpc_flags=%lx, status=%x allowed=%d\n",
242f9dcb 9364 ha->host_no, cmd, jiffies, cmd->request->timeout / HZ,
ce545039
MC		 9365 ha->dpc_flags, cmd->result, cmd->allowed));
9366
9367 stat = qla4xxx_reset_target(ha, ddb_entry);
9368 if (stat != QLA_SUCCESS) {
9369 starget_printk(KERN_INFO, scsi_target(cmd->device),
9370 "WARM TARGET RESET FAILED.\n");
9371 return FAILED;
9372 }
9373
ce545039
MC		 9374 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device),
9375 NULL)) {
9376 starget_printk(KERN_INFO, scsi_target(cmd->device),
9377 "WARM TARGET DEVICE RESET FAILED - "
9378 "waiting for commands.\n");
9379 return FAILED;
9380 }
9381
9d562913
DS		 9382 /* Send marker. */
9383 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun,
9384 MM_TGT_WARM_RESET) != QLA_SUCCESS) {
9385 starget_printk(KERN_INFO, scsi_target(cmd->device),
9386 "WARM TARGET DEVICE RESET FAILED - "
9387 "marker iocb failed.\n");
9388 return FAILED;
9389 }
9390
ce545039
MC		 9391 starget_printk(KERN_INFO, scsi_target(cmd->device),
9392 "WARM TARGET RESET SUCCEEDED.\n");
9393 return SUCCESS;
9394}
9395
8a288960
SR		 9396/**
9397 * qla4xxx_is_eh_active - check if error handler is running
9398 * @shost: Pointer to SCSI Host struct
9399 *
9400 * This routine finds that if reset host is called in EH
9401 * scenario or from some application like sg_reset
9402 **/
9403static int qla4xxx_is_eh_active(struct Scsi_Host *shost)
9404{
9405 if (shost->shost_state == SHOST_RECOVERY)
9406 return 1;
9407 return 0;
9408}
9409
afaf5a2d
DS		 9410/**
9411 * qla4xxx_eh_host_reset - kernel callback
9412 * @cmd: Pointer to Linux's SCSI command structure
9413 *
9414 * This routine is invoked by the Linux kernel to perform fatal error
9415 * recovery on the specified adapter.
9416 **/
9417static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd)
9418{
9419 int return_status = FAILED;
9420 struct scsi_qla_host *ha;
9421
b3a271a9 9422 ha = to_qla_host(cmd->device->host);
afaf5a2d 9423
b37ca418 9424 if ((is_qla8032(ha) || is_qla8042(ha)) && ql4xdontresethba)
6e7b4292
VC		 9425 qla4_83xx_set_idc_dontreset(ha);
9426
9427 /*
b37ca418
VC		 9428 * For ISP8324 and ISP8042, if IDC_CTRL DONTRESET_BIT0 is set by other
9429 * protocol drivers, we should not set device_state to NEED_RESET
6e7b4292
VC		 9430 */
9431 if (ql4xdontresethba ||
b37ca418
VC		 9432 ((is_qla8032(ha) || is_qla8042(ha)) &&
9433 qla4_83xx_idc_dontreset(ha))) {
f4f5df23
VC		 9434 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n",
9435 ha->host_no, __func__));
8a288960
SR		 9436
9437 /* Clear outstanding srb in queues */
9438 if (qla4xxx_is_eh_active(cmd->device->host))
9439 qla4xxx_abort_active_cmds(ha, DID_ABORT << 16);
9440
f4f5df23
VC		 9441 return FAILED;
9442 }
9443
c2660df3 9444 ql4_printk(KERN_INFO, ha,
9cb78c16 9445 "scsi(%ld:%d:%d:%llu): HOST RESET ISSUED.\n", ha->host_no,
afaf5a2d
DS		 9446 cmd->device->channel, cmd->device->id, cmd->device->lun);
9447
9448 if (qla4xxx_wait_for_hba_online(ha) != QLA_SUCCESS) {
9449 DEBUG2(printk("scsi%ld:%d: %s: Unable to reset host. Adapter "
9450 "DEAD.\n", ha->host_no, cmd->device->channel,
9451 __func__));
9452
9453 return FAILED;
9454 }
9455
f4f5df23 9456 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
6e7b4292 9457 if (is_qla80XX(ha))
f4f5df23
VC		 9458 set_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
9459 else
9460 set_bit(DPC_RESET_HA, &ha->dpc_flags);
9461 }
50a29aec 9462
f4f5df23 9463 if (qla4xxx_recover_adapter(ha) == QLA_SUCCESS)
afaf5a2d 9464 return_status = SUCCESS;
afaf5a2d 9465
c2660df3 9466 ql4_printk(KERN_INFO, ha, "HOST RESET %s.\n",
25985edc 9467 return_status == FAILED ? "FAILED" : "SUCCEEDED");
afaf5a2d
DS		 9468
9469 return return_status;
9470}
9471
95d31262
VC		 9472static int qla4xxx_context_reset(struct scsi_qla_host *ha)
9473{
9474 uint32_t mbox_cmd[MBOX_REG_COUNT];
9475 uint32_t mbox_sts[MBOX_REG_COUNT];
9476 struct addr_ctrl_blk_def *acb = NULL;
9477 uint32_t acb_len = sizeof(struct addr_ctrl_blk_def);
9478 int rval = QLA_SUCCESS;
9479 dma_addr_t acb_dma;
9480
9481 acb = dma_alloc_coherent(&ha->pdev->dev,
9482 sizeof(struct addr_ctrl_blk_def),
9483 &acb_dma, GFP_KERNEL);
9484 if (!acb) {
9485 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc acb\n",
9486 __func__);
9487 rval = -ENOMEM;
9488 goto exit_port_reset;
9489 }
9490
9491 memset(acb, 0, acb_len);
9492
9493 rval = qla4xxx_get_acb(ha, acb_dma, PRIMARI_ACB, acb_len);
9494 if (rval != QLA_SUCCESS) {
9495 rval = -EIO;
9496 goto exit_free_acb;
9497 }
9498
9499 rval = qla4xxx_disable_acb(ha);
9500 if (rval != QLA_SUCCESS) {
9501 rval = -EIO;
9502 goto exit_free_acb;
9503 }
9504
9505 wait_for_completion_timeout(&ha->disable_acb_comp,
9506 DISABLE_ACB_TOV * HZ);
9507
9508 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], acb_dma);
9509 if (rval != QLA_SUCCESS) {
9510 rval = -EIO;
9511 goto exit_free_acb;
9512 }
9513
9514exit_free_acb:
9515 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk_def),
9516 acb, acb_dma);
9517exit_port_reset:
9518 DEBUG2(ql4_printk(KERN_INFO, ha, "%s %s\n", __func__,
9519 rval == QLA_SUCCESS ? "SUCCEEDED" : "FAILED"));
9520 return rval;
9521}
9522
9523static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type)
9524{
9525 struct scsi_qla_host *ha = to_qla_host(shost);
9526 int rval = QLA_SUCCESS;
ebd777de 9527 uint32_t idc_ctrl;
95d31262
VC		 9528
9529 if (ql4xdontresethba) {
9530 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Don't Reset HBA\n",
9531 __func__));
9532 rval = -EPERM;
9533 goto exit_host_reset;
9534 }
9535
95d31262
VC		 9536 if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
9537 goto recover_adapter;
9538
9539 switch (reset_type) {
9540 case SCSI_ADAPTER_RESET:
9541 set_bit(DPC_RESET_HA, &ha->dpc_flags);
9542 break;
9543 case SCSI_FIRMWARE_RESET:
9544 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
6e7b4292 9545 if (is_qla80XX(ha))
95d31262
VC		 9546 /* set firmware context reset */
9547 set_bit(DPC_RESET_HA_FW_CONTEXT,
9548 &ha->dpc_flags);
9549 else {
9550 rval = qla4xxx_context_reset(ha);
9551 goto exit_host_reset;
9552 }
9553 }
9554 break;
9555 }
9556
9557recover_adapter:
b37ca418 9558 /* For ISP8324 and ISP8042 set graceful reset bit in IDC_DRV_CTRL if
ebd777de 9559 * reset is issued by application */
b37ca418
VC		 9560 if ((is_qla8032(ha) || is_qla8042(ha)) &&
9561 test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
ebd777de
VC		 9562 idc_ctrl = qla4_83xx_rd_reg(ha, QLA83XX_IDC_DRV_CTRL);
9563 qla4_83xx_wr_reg(ha, QLA83XX_IDC_DRV_CTRL,
9564 (idc_ctrl | GRACEFUL_RESET_BIT1));
9565 }
9566
95d31262
VC		 9567 rval = qla4xxx_recover_adapter(ha);
9568 if (rval != QLA_SUCCESS) {
9569 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: recover adapter fail\n",
9570 __func__));
9571 rval = -EIO;
9572 }
9573
9574exit_host_reset:
9575 return rval;
9576}
9577
2232be0d
LC		 9578/* PCI AER driver recovers from all correctable errors w/o
9579 * driver intervention. For uncorrectable errors PCI AER
9580 * driver calls the following device driver's callbacks
9581 *
9582 * - Fatal Errors - link_reset
9583 * - Non-Fatal Errors - driver's pci_error_detected() which
9584 * returns CAN_RECOVER, NEED_RESET or DISCONNECT.
9585 *
9586 * PCI AER driver calls
9587 * CAN_RECOVER - driver's pci_mmio_enabled(), mmio_enabled
9588 * returns RECOVERED or NEED_RESET if fw_hung
9589 * NEED_RESET - driver's slot_reset()
9590 * DISCONNECT - device is dead & cannot recover
9591 * RECOVERED - driver's pci_resume()
9592 */
9593static pci_ers_result_t
9594qla4xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
9595{
9596 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9597
9598 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: error detected:state %x\n",
9599 ha->host_no, __func__, state);
9600
9601 if (!is_aer_supported(ha))
9602 return PCI_ERS_RESULT_NONE;
9603
9604 switch (state) {
9605 case pci_channel_io_normal:
9606 clear_bit(AF_EEH_BUSY, &ha->flags);
9607 return PCI_ERS_RESULT_CAN_RECOVER;
9608 case pci_channel_io_frozen:
9609 set_bit(AF_EEH_BUSY, &ha->flags);
9610 qla4xxx_mailbox_premature_completion(ha);
9611 qla4xxx_free_irqs(ha);
9612 pci_disable_device(pdev);
7b3595df
VC		 9613 /* Return back all IOs */
9614 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
2232be0d
LC		 9615 return PCI_ERS_RESULT_NEED_RESET;
9616 case pci_channel_io_perm_failure:
9617 set_bit(AF_EEH_BUSY, &ha->flags);
9618 set_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags);
9619 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
9620 return PCI_ERS_RESULT_DISCONNECT;
9621 }
9622 return PCI_ERS_RESULT_NEED_RESET;
9623}
9624
9625/**
9626 * qla4xxx_pci_mmio_enabled() gets called if
9627 * qla4xxx_pci_error_detected() returns PCI_ERS_RESULT_CAN_RECOVER
9628 * and read/write to the device still works.
9629 **/
9630static pci_ers_result_t
9631qla4xxx_pci_mmio_enabled(struct pci_dev *pdev)
9632{
9633 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9634
9635 if (!is_aer_supported(ha))
9636 return PCI_ERS_RESULT_NONE;
9637
7b3595df 9638 return PCI_ERS_RESULT_RECOVERED;
2232be0d
LC		 9639}
9640
7b3595df 9641static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha)
2232be0d
LC		 9642{
9643 uint32_t rval = QLA_ERROR;
9644 int fn;
9645 struct pci_dev *other_pdev = NULL;
9646
9647 ql4_printk(KERN_WARNING, ha, "scsi%ld: In %s\n", ha->host_no, __func__);
9648
9649 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
9650
9651 if (test_bit(AF_ONLINE, &ha->flags)) {
9652 clear_bit(AF_ONLINE, &ha->flags);
b3a271a9
MR		 9653 clear_bit(AF_LINK_UP, &ha->flags);
9654 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session);
2232be0d 9655 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
2232be0d
LC		 9656 }
9657
9658 fn = PCI_FUNC(ha->pdev->devfn);
daa34eb4
TP		 9659 if (is_qla8022(ha)) {
9660 while (fn > 0) {
9661 fn--;
9662 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Finding PCI device at func %x\n",
9663 ha->host_no, __func__, fn);
9664 /* Get the pci device given the domain, bus,
9665 * slot/function number */
9666 other_pdev = pci_get_domain_bus_and_slot(
9667 pci_domain_nr(ha->pdev->bus),
9668 ha->pdev->bus->number,
9669 PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
9670 fn));
9671
9672 if (!other_pdev)
9673 continue;
2232be0d 9674
daa34eb4
TP		 9675 if (atomic_read(&other_pdev->enable_cnt)) {
9676 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Found PCI func in enabled state%x\n",
9677 ha->host_no, __func__, fn);
9678 pci_dev_put(other_pdev);
9679 break;
9680 }
2232be0d 9681 pci_dev_put(other_pdev);
2232be0d 9682 }
daa34eb4
TP		 9683 } else {
9684 /* this case is meant for ISP83xx/ISP84xx only */
9685 if (qla4_83xx_can_perform_reset(ha)) {
9686 /* reset fn as iSCSI is going to perform the reset */
9687 fn = 0;
9688 }
2232be0d
LC		 9689 }
9690
9691 /* The first function on the card, the reset owner will
9692 * start & initialize the firmware. The other functions
9693 * on the card will reset the firmware context
9694 */
9695 if (!fn) {
9696 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn being reset "
9697 "0x%x is the owner\n", ha->host_no, __func__,
9698 ha->pdev->devfn);
9699
33693c7a
VC		 9700 ha->isp_ops->idc_lock(ha);
9701 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9702 QLA8XXX_DEV_COLD);
33693c7a 9703 ha->isp_ops->idc_unlock(ha);
39c95826
VC		 9704
9705 rval = qla4_8xxx_update_idc_reg(ha);
9706 if (rval == QLA_ERROR) {
9707 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: FAILED\n",
9708 ha->host_no, __func__);
9709 ha->isp_ops->idc_lock(ha);
9710 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9711 QLA8XXX_DEV_FAILED);
9712 ha->isp_ops->idc_unlock(ha);
9713 goto exit_error_recovery;
9714 }
2232be0d 9715
2232be0d 9716 clear_bit(AF_FW_RECOVERY, &ha->flags);
13483730 9717 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
2232be0d
LC		 9718
9719 if (rval != QLA_SUCCESS) {
9720 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: "
9721 "FAILED\n", ha->host_no, __func__);
37418cc6 9722 qla4xxx_free_irqs(ha);
82761907 9723 ha->isp_ops->idc_lock(ha);
2232be0d 9724 qla4_8xxx_clear_drv_active(ha);
33693c7a
VC		 9725 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9726 QLA8XXX_DEV_FAILED);
82761907 9727 ha->isp_ops->idc_unlock(ha);
2232be0d
LC		 9728 } else {
9729 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: "
9730 "READY\n", ha->host_no, __func__);
82761907 9731 ha->isp_ops->idc_lock(ha);
33693c7a
VC		 9732 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9733 QLA8XXX_DEV_READY);
2232be0d 9734 /* Clear driver state register */
33693c7a 9735 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_STATE, 0);
2232be0d 9736 qla4_8xxx_set_drv_active(ha);
82761907 9737 ha->isp_ops->idc_unlock(ha);
137257da 9738 ha->isp_ops->enable_intrs(ha);
2232be0d 9739 }
2232be0d
LC		 9740 } else {
9741 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn 0x%x is not "
9742 "the reset owner\n", ha->host_no, __func__,
9743 ha->pdev->devfn);
33693c7a
VC		 9744 if ((qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE) ==
9745 QLA8XXX_DEV_READY)) {
2232be0d 9746 clear_bit(AF_FW_RECOVERY, &ha->flags);
13483730 9747 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
137257da
PV		 9748 if (rval == QLA_SUCCESS)
9749 ha->isp_ops->enable_intrs(ha);
37418cc6
NJ		 9750 else
9751 qla4xxx_free_irqs(ha);
137257da 9752
33693c7a 9753 ha->isp_ops->idc_lock(ha);
2232be0d 9754 qla4_8xxx_set_drv_active(ha);
33693c7a 9755 ha->isp_ops->idc_unlock(ha);
2232be0d
LC		 9756 }
9757 }
39c95826 9758exit_error_recovery:
2232be0d
LC		 9759 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
9760 return rval;
9761}
9762
9763static pci_ers_result_t
9764qla4xxx_pci_slot_reset(struct pci_dev *pdev)
9765{
9766 pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
9767 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9768 int rc;
9769
9770 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: slot_reset\n",
9771 ha->host_no, __func__);
9772
9773 if (!is_aer_supported(ha))
9774 return PCI_ERS_RESULT_NONE;
9775
9776 /* Restore the saved state of PCIe device -
9777 * BAR registers, PCI Config space, PCIX, MSI,
9778 * IOV states
9779 */
9780 pci_restore_state(pdev);
9781
9782 /* pci_restore_state() clears the saved_state flag of the device
9783 * save restored state which resets saved_state flag
9784 */
9785 pci_save_state(pdev);
9786
9787 /* Initialize device or resume if in suspended state */
9788 rc = pci_enable_device(pdev);
9789 if (rc) {
25985edc 9790 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Can't re-enable "
2232be0d
LC		 9791 "device after reset\n", ha->host_no, __func__);
9792 goto exit_slot_reset;
9793 }
9794
7b3595df 9795 ha->isp_ops->disable_intrs(ha);
2232be0d 9796
6e7b4292 9797 if (is_qla80XX(ha)) {
2232be0d
LC		 9798 if (qla4_8xxx_error_recovery(ha) == QLA_SUCCESS) {
9799 ret = PCI_ERS_RESULT_RECOVERED;
9800 goto exit_slot_reset;
9801 } else
9802 goto exit_slot_reset;
9803 }
9804
9805exit_slot_reset:
9806 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Return=%x\n"
9807 "device after reset\n", ha->host_no, __func__, ret);
9808 return ret;
9809}
9810
9811static void
9812qla4xxx_pci_resume(struct pci_dev *pdev)
9813{
9814 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9815 int ret;
9816
9817 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: pci_resume\n",
9818 ha->host_no, __func__);
9819
9820 ret = qla4xxx_wait_for_hba_online(ha);
9821 if (ret != QLA_SUCCESS) {
9822 ql4_printk(KERN_ERR, ha, "scsi%ld: %s: the device failed to "
9823 "resume I/O from slot/link_reset\n", ha->host_no,
9824 __func__);
9825 }
9826
9827 pci_cleanup_aer_uncorrect_error_status(pdev);
9828 clear_bit(AF_EEH_BUSY, &ha->flags);
9829}
9830
a55b2d21 9831static const struct pci_error_handlers qla4xxx_err_handler = {
2232be0d
LC		 9832 .error_detected = qla4xxx_pci_error_detected,
9833 .mmio_enabled = qla4xxx_pci_mmio_enabled,
9834 .slot_reset = qla4xxx_pci_slot_reset,
9835 .resume = qla4xxx_pci_resume,
9836};
9837
afaf5a2d
DS		 9838static struct pci_device_id qla4xxx_pci_tbl[] = {
9839 {
9840 .vendor = PCI_VENDOR_ID_QLOGIC,
9841 .device = PCI_DEVICE_ID_QLOGIC_ISP4010,
9842 .subvendor = PCI_ANY_ID,
9843 .subdevice = PCI_ANY_ID,
9844 },
9845 {
9846 .vendor = PCI_VENDOR_ID_QLOGIC,
9847 .device = PCI_DEVICE_ID_QLOGIC_ISP4022,
9848 .subvendor = PCI_ANY_ID,
9849 .subdevice = PCI_ANY_ID,
9850 },
d915058f
DS		 9851 {
9852 .vendor = PCI_VENDOR_ID_QLOGIC,
9853 .device = PCI_DEVICE_ID_QLOGIC_ISP4032,
9854 .subvendor = PCI_ANY_ID,
9855 .subdevice = PCI_ANY_ID,
9856 },
f4f5df23
VC		 9857 {
9858 .vendor = PCI_VENDOR_ID_QLOGIC,
9859 .device = PCI_DEVICE_ID_QLOGIC_ISP8022,
9860 .subvendor = PCI_ANY_ID,
9861 .subdevice = PCI_ANY_ID,
9862 },
6e7b4292
VC		 9863 {
9864 .vendor = PCI_VENDOR_ID_QLOGIC,
9865 .device = PCI_DEVICE_ID_QLOGIC_ISP8324,
9866 .subvendor = PCI_ANY_ID,
9867 .subdevice = PCI_ANY_ID,
9868 },
b37ca418
VC		 9869 {
9870 .vendor = PCI_VENDOR_ID_QLOGIC,
9871 .device = PCI_DEVICE_ID_QLOGIC_ISP8042,
9872 .subvendor = PCI_ANY_ID,
9873 .subdevice = PCI_ANY_ID,
9874 },
afaf5a2d
DS		 9875 {0, 0},
9876};
9877MODULE_DEVICE_TABLE(pci, qla4xxx_pci_tbl);
9878
47975477 9879static struct pci_driver qla4xxx_pci_driver = {
afaf5a2d
DS		 9880 .name = DRIVER_NAME,
9881 .id_table = qla4xxx_pci_tbl,
9882 .probe = qla4xxx_probe_adapter,
9883 .remove = qla4xxx_remove_adapter,
2232be0d 9884 .err_handler = &qla4xxx_err_handler,
afaf5a2d
DS		 9885};
9886
9887static int __init qla4xxx_module_init(void)
9888{
9889 int ret;
9890
9891 /* Allocate cache for SRBs. */
9892 srb_cachep = kmem_cache_create("qla4xxx_srbs", sizeof(struct srb), 0,
20c2df83 9893 SLAB_HWCACHE_ALIGN, NULL);
afaf5a2d
DS		 9894 if (srb_cachep == NULL) {
9895 printk(KERN_ERR
9896 "%s: Unable to allocate SRB cache..."
9897 "Failing load!\n", DRIVER_NAME);
9898 ret = -ENOMEM;
9899 goto no_srp_cache;
9900 }
9901
9902 /* Derive version string. */
9903 strcpy(qla4xxx_version_str, QLA4XXX_DRIVER_VERSION);
11010fec 9904 if (ql4xextended_error_logging)
afaf5a2d
DS		 9905 strcat(qla4xxx_version_str, "-debug");
9906
9907 qla4xxx_scsi_transport =
9908 iscsi_register_transport(&qla4xxx_iscsi_transport);
9909 if (!qla4xxx_scsi_transport){
9910 ret = -ENODEV;
9911 goto release_srb_cache;
9912 }
9913
afaf5a2d
DS		 9914 ret = pci_register_driver(&qla4xxx_pci_driver);
9915 if (ret)
9916 goto unregister_transport;
9917
9918 printk(KERN_INFO "QLogic iSCSI HBA Driver\n");
9919 return 0;
5ae16db3 9920
afaf5a2d
DS		 9921unregister_transport:
9922 iscsi_unregister_transport(&qla4xxx_iscsi_transport);
9923release_srb_cache:
9924 kmem_cache_destroy(srb_cachep);
9925no_srp_cache:
9926 return ret;
9927}
9928
9929static void __exit qla4xxx_module_exit(void)
9930{
9931 pci_unregister_driver(&qla4xxx_pci_driver);
9932 iscsi_unregister_transport(&qla4xxx_iscsi_transport);
9933 kmem_cache_destroy(srb_cachep);
9934}
9935
9936module_init(qla4xxx_module_init);
9937module_exit(qla4xxx_module_exit);
9938
9939MODULE_AUTHOR("QLogic Corporation");
9940MODULE_DESCRIPTION("QLogic iSCSI HBA Driver");
9941MODULE_LICENSE("GPL");
9942MODULE_VERSION(QLA4XXX_DRIVER_VERSION);
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