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[SCSI] qla4xxx: Remove unused code from qla4xxx_set_ifcb()
[mirror_ubuntu-bionic-kernel.git] / drivers / scsi / qla4xxx / ql4_os.c
CommitLineData
afaf5a2d
DS		 1/*
2 * QLogic iSCSI HBA Driver
4a4f51e9 3 * Copyright (c) 2003-2013 QLogic Corporation
afaf5a2d
DS		 4 *
5 * See LICENSE.qla4xxx for copyright and licensing details.
6 */
7#include <linux/moduleparam.h>
5a0e3ad6 8#include <linux/slab.h>
2a991c21
MR		 9#include <linux/blkdev.h>
10#include <linux/iscsi_boot_sysfs.h>
13483730 11#include <linux/inet.h>
afaf5a2d
DS		 12
13#include <scsi/scsi_tcq.h>
14#include <scsi/scsicam.h>
15
16#include "ql4_def.h"
bee4fe8e
DS		 17#include "ql4_version.h"
18#include "ql4_glbl.h"
19#include "ql4_dbg.h"
20#include "ql4_inline.h"
6e7b4292 21#include "ql4_83xx.h"
afaf5a2d
DS		 22
23/*
24 * Driver version
25 */
47975477 26static char qla4xxx_version_str[40];
afaf5a2d
DS		 27
28/*
29 * SRB allocation cache
30 */
e18b890b 31static struct kmem_cache *srb_cachep;
afaf5a2d
DS		 32
33/*
34 * Module parameter information and variables
35 */
a7380a65 36static int ql4xdisablesysfsboot = 1;
13483730
MC		 37module_param(ql4xdisablesysfsboot, int, S_IRUGO | S_IWUSR);
38MODULE_PARM_DESC(ql4xdisablesysfsboot,
a4e8a715
KH		 39 " Set to disable exporting boot targets to sysfs.\n"
40 "\t\t 0 - Export boot targets\n"
41 "\t\t 1 - Do not export boot targets (Default)");
13483730 42
3573bfb2 43int ql4xdontresethba;
f4f5df23 44module_param(ql4xdontresethba, int, S_IRUGO | S_IWUSR);
afaf5a2d 45MODULE_PARM_DESC(ql4xdontresethba,
a4e8a715
KH		 46 " Don't reset the HBA for driver recovery.\n"
47 "\t\t 0 - It will reset HBA (Default)\n"
48 "\t\t 1 - It will NOT reset HBA");
afaf5a2d 49
a4e8a715 50int ql4xextended_error_logging;
f4f5df23 51module_param(ql4xextended_error_logging, int, S_IRUGO | S_IWUSR);
11010fec 52MODULE_PARM_DESC(ql4xextended_error_logging,
a4e8a715
KH		 53 " Option to enable extended error logging.\n"
54 "\t\t 0 - no logging (Default)\n"
55 "\t\t 2 - debug logging");
afaf5a2d 56
f4f5df23
VC		 57int ql4xenablemsix = 1;
58module_param(ql4xenablemsix, int, S_IRUGO|S_IWUSR);
59MODULE_PARM_DESC(ql4xenablemsix,
a4e8a715
KH		 60 " Set to enable MSI or MSI-X interrupt mechanism.\n"
61 "\t\t 0 = enable INTx interrupt mechanism.\n"
62 "\t\t 1 = enable MSI-X interrupt mechanism (Default).\n"
63 "\t\t 2 = enable MSI interrupt mechanism.");
477ffb9d 64
d510d965 65#define QL4_DEF_QDEPTH 32
8bb4033d
VC		 66static int ql4xmaxqdepth = QL4_DEF_QDEPTH;
67module_param(ql4xmaxqdepth, int, S_IRUGO | S_IWUSR);
68MODULE_PARM_DESC(ql4xmaxqdepth,
a4e8a715
KH		 69 " Maximum queue depth to report for target devices.\n"
70 "\t\t Default: 32.");
d510d965 71
f7b4aa63
TP		 72static int ql4xqfulltracking = 1;
73module_param(ql4xqfulltracking, int, S_IRUGO | S_IWUSR);
74MODULE_PARM_DESC(ql4xqfulltracking,
75 " Enable or disable dynamic tracking and adjustment of\n"
76 "\t\t scsi device queue depth.\n"
77 "\t\t 0 - Disable.\n"
78 "\t\t 1 - Enable. (Default)");
79
3038727c
VC		 80static int ql4xsess_recovery_tmo = QL4_SESS_RECOVERY_TMO;
81module_param(ql4xsess_recovery_tmo, int, S_IRUGO);
82MODULE_PARM_DESC(ql4xsess_recovery_tmo,
3573bfb2 83 " Target Session Recovery Timeout.\n"
a4e8a715 84 "\t\t Default: 120 sec.");
3038727c 85
068237c8
TP		 86int ql4xmdcapmask = 0x1F;
87module_param(ql4xmdcapmask, int, S_IRUGO);
88MODULE_PARM_DESC(ql4xmdcapmask,
89 " Set the Minidump driver capture mask level.\n"
90 "\t\t Default is 0x1F.\n"
91 "\t\t Can be set to 0x3, 0x7, 0xF, 0x1F, 0x3F, 0x7F");
92
93int ql4xenablemd = 1;
94module_param(ql4xenablemd, int, S_IRUGO | S_IWUSR);
95MODULE_PARM_DESC(ql4xenablemd,
96 " Set to enable minidump.\n"
97 "\t\t 0 - disable minidump\n"
98 "\t\t 1 - enable minidump (Default)");
99
b3a271a9 100static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha);
afaf5a2d
DS		 101/*
102 * SCSI host template entry points
103 */
47975477 104static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha);
afaf5a2d
DS		 105
106/*
107 * iSCSI template entry points
108 */
fca9f04d
MC		 109static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess,
110 enum iscsi_param param, char *buf);
afaf5a2d
DS		 111static int qla4xxx_conn_get_param(struct iscsi_cls_conn *conn,
112 enum iscsi_param param, char *buf);
aa1e93a2
MC		 113static int qla4xxx_host_get_param(struct Scsi_Host *shost,
114 enum iscsi_host_param param, char *buf);
00c31889
MC		 115static int qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data,
116 uint32_t len);
ed1086e0
VC		 117static int qla4xxx_get_iface_param(struct iscsi_iface *iface,
118 enum iscsi_param_type param_type,
119 int param, char *buf);
5c656af7 120static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc);
b3a271a9
MR		 121static struct iscsi_endpoint *qla4xxx_ep_connect(struct Scsi_Host *shost,
122 struct sockaddr *dst_addr,
123 int non_blocking);
124static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms);
125static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep);
126static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep,
127 enum iscsi_param param, char *buf);
128static int qla4xxx_conn_start(struct iscsi_cls_conn *conn);
129static struct iscsi_cls_conn *
130qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx);
131static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session,
132 struct iscsi_cls_conn *cls_conn,
133 uint64_t transport_fd, int is_leading);
134static void qla4xxx_conn_destroy(struct iscsi_cls_conn *conn);
135static struct iscsi_cls_session *
136qla4xxx_session_create(struct iscsi_endpoint *ep, uint16_t cmds_max,
137 uint16_t qdepth, uint32_t initial_cmdsn);
138static void qla4xxx_session_destroy(struct iscsi_cls_session *sess);
139static void qla4xxx_task_work(struct work_struct *wdata);
140static int qla4xxx_alloc_pdu(struct iscsi_task *, uint8_t);
141static int qla4xxx_task_xmit(struct iscsi_task *);
142static void qla4xxx_task_cleanup(struct iscsi_task *);
143static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session);
144static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn,
145 struct iscsi_stats *stats);
c0b9d3f7
VC		 146static int qla4xxx_send_ping(struct Scsi_Host *shost, uint32_t iface_num,
147 uint32_t iface_type, uint32_t payload_size,
148 uint32_t pid, struct sockaddr *dst_addr);
376738af
NJ		 149static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx,
150 uint32_t *num_entries, char *buf);
151static int qla4xxx_delete_chap(struct Scsi_Host *shost, uint16_t chap_tbl_idx);
26ffd7b4
AC		 152static int qla4xxx_set_chap_entry(struct Scsi_Host *shost, void *data,
153 int len);
4161cee5 154static int qla4xxx_get_host_stats(struct Scsi_Host *shost, char *buf, int len);
c0b9d3f7 155
afaf5a2d
DS		 156/*
157 * SCSI host template entry points
158 */
f281233d 159static int qla4xxx_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *cmd);
09a0f719 160static int qla4xxx_eh_abort(struct scsi_cmnd *cmd);
afaf5a2d 161static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd);
ce545039 162static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd);
afaf5a2d
DS		 163static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd);
164static int qla4xxx_slave_alloc(struct scsi_device *device);
165static int qla4xxx_slave_configure(struct scsi_device *device);
166static void qla4xxx_slave_destroy(struct scsi_device *sdev);
5e9bcec7 167static umode_t qla4_attr_is_visible(int param_type, int param);
95d31262 168static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type);
f7b4aa63
TP		 169static int qla4xxx_change_queue_depth(struct scsi_device *sdev, int qdepth,
170 int reason);
afaf5a2d 171
1e9e2be3
AC		 172/*
173 * iSCSI Flash DDB sysfs entry points
174 */
175static int
176qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess,
177 struct iscsi_bus_flash_conn *fnode_conn,
178 void *data, int len);
179static int
180qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session *fnode_sess,
181 int param, char *buf);
182static int qla4xxx_sysfs_ddb_add(struct Scsi_Host *shost, const char *buf,
183 int len);
184static int
185qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess);
186static int qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess,
187 struct iscsi_bus_flash_conn *fnode_conn);
188static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess,
189 struct iscsi_bus_flash_conn *fnode_conn);
190static int qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess);
191
f4f5df23
VC		 192static struct qla4_8xxx_legacy_intr_set legacy_intr[] =
193 QLA82XX_LEGACY_INTR_CONFIG;
194
afaf5a2d
DS		 195static struct scsi_host_template qla4xxx_driver_template = {
196 .module = THIS_MODULE,
197 .name = DRIVER_NAME,
198 .proc_name = DRIVER_NAME,
199 .queuecommand = qla4xxx_queuecommand,
200
09a0f719 201 .eh_abort_handler = qla4xxx_eh_abort,
afaf5a2d 202 .eh_device_reset_handler = qla4xxx_eh_device_reset,
ce545039 203 .eh_target_reset_handler = qla4xxx_eh_target_reset,
afaf5a2d 204 .eh_host_reset_handler = qla4xxx_eh_host_reset,
5c656af7 205 .eh_timed_out = qla4xxx_eh_cmd_timed_out,
afaf5a2d
DS		 206
207 .slave_configure = qla4xxx_slave_configure,
208 .slave_alloc = qla4xxx_slave_alloc,
209 .slave_destroy = qla4xxx_slave_destroy,
f7b4aa63 210 .change_queue_depth = qla4xxx_change_queue_depth,
afaf5a2d
DS		 211
212 .this_id = -1,
213 .cmd_per_lun = 3,
214 .use_clustering = ENABLE_CLUSTERING,
215 .sg_tablesize = SG_ALL,
216
217 .max_sectors = 0xFFFF,
7ad633c0 218 .shost_attrs = qla4xxx_host_attrs,
95d31262 219 .host_reset = qla4xxx_host_reset,
a355943c 220 .vendor_id = SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC,
afaf5a2d
DS		 221};
222
223static struct iscsi_transport qla4xxx_iscsi_transport = {
224 .owner = THIS_MODULE,
225 .name = DRIVER_NAME,
b3a271a9
MR		 226 .caps = CAP_TEXT_NEGO |
227 CAP_DATA_PATH_OFFLOAD | CAP_HDRDGST |
228 CAP_DATADGST | CAP_LOGIN_OFFLOAD |
229 CAP_MULTI_R2T,
5e9bcec7 230 .attr_is_visible = qla4_attr_is_visible,
b3a271a9
MR		 231 .create_session = qla4xxx_session_create,
232 .destroy_session = qla4xxx_session_destroy,
233 .start_conn = qla4xxx_conn_start,
234 .create_conn = qla4xxx_conn_create,
235 .bind_conn = qla4xxx_conn_bind,
236 .stop_conn = iscsi_conn_stop,
237 .destroy_conn = qla4xxx_conn_destroy,
238 .set_param = iscsi_set_param,
afaf5a2d 239 .get_conn_param = qla4xxx_conn_get_param,
fca9f04d 240 .get_session_param = qla4xxx_session_get_param,
b3a271a9
MR		 241 .get_ep_param = qla4xxx_get_ep_param,
242 .ep_connect = qla4xxx_ep_connect,
243 .ep_poll = qla4xxx_ep_poll,
244 .ep_disconnect = qla4xxx_ep_disconnect,
245 .get_stats = qla4xxx_conn_get_stats,
246 .send_pdu = iscsi_conn_send_pdu,
247 .xmit_task = qla4xxx_task_xmit,
248 .cleanup_task = qla4xxx_task_cleanup,
249 .alloc_pdu = qla4xxx_alloc_pdu,
250
aa1e93a2 251 .get_host_param = qla4xxx_host_get_param,
d00efe3f 252 .set_iface_param = qla4xxx_iface_set_param,
ed1086e0 253 .get_iface_param = qla4xxx_get_iface_param,
a355943c 254 .bsg_request = qla4xxx_bsg_request,
c0b9d3f7 255 .send_ping = qla4xxx_send_ping,
376738af
NJ		 256 .get_chap = qla4xxx_get_chap_list,
257 .delete_chap = qla4xxx_delete_chap,
26ffd7b4 258 .set_chap = qla4xxx_set_chap_entry,
1e9e2be3
AC		 259 .get_flashnode_param = qla4xxx_sysfs_ddb_get_param,
260 .set_flashnode_param = qla4xxx_sysfs_ddb_set_param,
261 .new_flashnode = qla4xxx_sysfs_ddb_add,
262 .del_flashnode = qla4xxx_sysfs_ddb_delete,
263 .login_flashnode = qla4xxx_sysfs_ddb_login,
264 .logout_flashnode = qla4xxx_sysfs_ddb_logout,
265 .logout_flashnode_sid = qla4xxx_sysfs_ddb_logout_sid,
4161cee5 266 .get_host_stats = qla4xxx_get_host_stats,
afaf5a2d
DS		 267};
268
269static struct scsi_transport_template *qla4xxx_scsi_transport;
270
c0b9d3f7
VC		 271static int qla4xxx_send_ping(struct Scsi_Host *shost, uint32_t iface_num,
272 uint32_t iface_type, uint32_t payload_size,
273 uint32_t pid, struct sockaddr *dst_addr)
274{
275 struct scsi_qla_host *ha = to_qla_host(shost);
276 struct sockaddr_in *addr;
277 struct sockaddr_in6 *addr6;
278 uint32_t options = 0;
279 uint8_t ipaddr[IPv6_ADDR_LEN];
280 int rval;
281
282 memset(ipaddr, 0, IPv6_ADDR_LEN);
283 /* IPv4 to IPv4 */
284 if ((iface_type == ISCSI_IFACE_TYPE_IPV4) &&
285 (dst_addr->sa_family == AF_INET)) {
286 addr = (struct sockaddr_in *)dst_addr;
287 memcpy(ipaddr, &addr->sin_addr.s_addr, IP_ADDR_LEN);
288 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv4 Ping src: %pI4 "
289 "dest: %pI4\n", __func__,
290 &ha->ip_config.ip_address, ipaddr));
291 rval = qla4xxx_ping_iocb(ha, options, payload_size, pid,
292 ipaddr);
293 if (rval)
294 rval = -EINVAL;
295 } else if ((iface_type == ISCSI_IFACE_TYPE_IPV6) &&
296 (dst_addr->sa_family == AF_INET6)) {
297 /* IPv6 to IPv6 */
298 addr6 = (struct sockaddr_in6 *)dst_addr;
299 memcpy(ipaddr, &addr6->sin6_addr.in6_u.u6_addr8, IPv6_ADDR_LEN);
300
301 options |= PING_IPV6_PROTOCOL_ENABLE;
302
303 /* Ping using LinkLocal address */
304 if ((iface_num == 0) || (iface_num == 1)) {
305 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: LinkLocal Ping "
306 "src: %pI6 dest: %pI6\n", __func__,
307 &ha->ip_config.ipv6_link_local_addr,
308 ipaddr));
309 options |= PING_IPV6_LINKLOCAL_ADDR;
310 rval = qla4xxx_ping_iocb(ha, options, payload_size,
311 pid, ipaddr);
312 } else {
313 ql4_printk(KERN_WARNING, ha, "%s: iface num = %d "
314 "not supported\n", __func__, iface_num);
315 rval = -ENOSYS;
316 goto exit_send_ping;
317 }
318
319 /*
320 * If ping using LinkLocal address fails, try ping using
321 * IPv6 address
322 */
323 if (rval != QLA_SUCCESS) {
324 options &= ~PING_IPV6_LINKLOCAL_ADDR;
325 if (iface_num == 0) {
326 options |= PING_IPV6_ADDR0;
327 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv6 "
328 "Ping src: %pI6 "
329 "dest: %pI6\n", __func__,
330 &ha->ip_config.ipv6_addr0,
331 ipaddr));
332 } else if (iface_num == 1) {
333 options |= PING_IPV6_ADDR1;
334 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv6 "
335 "Ping src: %pI6 "
336 "dest: %pI6\n", __func__,
337 &ha->ip_config.ipv6_addr1,
338 ipaddr));
339 }
340 rval = qla4xxx_ping_iocb(ha, options, payload_size,
341 pid, ipaddr);
342 if (rval)
343 rval = -EINVAL;
344 }
345 } else
346 rval = -ENOSYS;
347exit_send_ping:
348 return rval;
349}
350
5e9bcec7 351static umode_t qla4_attr_is_visible(int param_type, int param)
3128c6c7
MC		 352{
353 switch (param_type) {
f27fb2ef
MC		 354 case ISCSI_HOST_PARAM:
355 switch (param) {
356 case ISCSI_HOST_PARAM_HWADDRESS:
357 case ISCSI_HOST_PARAM_IPADDRESS:
358 case ISCSI_HOST_PARAM_INITIATOR_NAME:
3254dbe9
VC		 359 case ISCSI_HOST_PARAM_PORT_STATE:
360 case ISCSI_HOST_PARAM_PORT_SPEED:
f27fb2ef
MC		 361 return S_IRUGO;
362 default:
363 return 0;
364 }
3128c6c7
MC		 365 case ISCSI_PARAM:
366 switch (param) {
590134fa
MC		 367 case ISCSI_PARAM_PERSISTENT_ADDRESS:
368 case ISCSI_PARAM_PERSISTENT_PORT:
3128c6c7
MC		 369 case ISCSI_PARAM_CONN_ADDRESS:
370 case ISCSI_PARAM_CONN_PORT:
1d063c17
MC		 371 case ISCSI_PARAM_TARGET_NAME:
372 case ISCSI_PARAM_TPGT:
373 case ISCSI_PARAM_TARGET_ALIAS:
b3a271a9
MR		 374 case ISCSI_PARAM_MAX_BURST:
375 case ISCSI_PARAM_MAX_R2T:
376 case ISCSI_PARAM_FIRST_BURST:
377 case ISCSI_PARAM_MAX_RECV_DLENGTH:
378 case ISCSI_PARAM_MAX_XMIT_DLENGTH:
de37920b 379 case ISCSI_PARAM_IFACE_NAME:
fca9f04d
MC		 380 case ISCSI_PARAM_CHAP_OUT_IDX:
381 case ISCSI_PARAM_CHAP_IN_IDX:
382 case ISCSI_PARAM_USERNAME:
383 case ISCSI_PARAM_PASSWORD:
384 case ISCSI_PARAM_USERNAME_IN:
385 case ISCSI_PARAM_PASSWORD_IN:
8cc91d42
AC		 386 case ISCSI_PARAM_AUTO_SND_TGT_DISABLE:
387 case ISCSI_PARAM_DISCOVERY_SESS:
388 case ISCSI_PARAM_PORTAL_TYPE:
389 case ISCSI_PARAM_CHAP_AUTH_EN:
390 case ISCSI_PARAM_DISCOVERY_LOGOUT_EN:
391 case ISCSI_PARAM_BIDI_CHAP_EN:
392 case ISCSI_PARAM_DISCOVERY_AUTH_OPTIONAL:
393 case ISCSI_PARAM_DEF_TIME2WAIT:
394 case ISCSI_PARAM_DEF_TIME2RETAIN:
395 case ISCSI_PARAM_HDRDGST_EN:
396 case ISCSI_PARAM_DATADGST_EN:
397 case ISCSI_PARAM_INITIAL_R2T_EN:
398 case ISCSI_PARAM_IMM_DATA_EN:
399 case ISCSI_PARAM_PDU_INORDER_EN:
400 case ISCSI_PARAM_DATASEQ_INORDER_EN:
401 case ISCSI_PARAM_MAX_SEGMENT_SIZE:
402 case ISCSI_PARAM_TCP_TIMESTAMP_STAT:
403 case ISCSI_PARAM_TCP_WSF_DISABLE:
404 case ISCSI_PARAM_TCP_NAGLE_DISABLE:
405 case ISCSI_PARAM_TCP_TIMER_SCALE:
406 case ISCSI_PARAM_TCP_TIMESTAMP_EN:
407 case ISCSI_PARAM_TCP_XMIT_WSF:
408 case ISCSI_PARAM_TCP_RECV_WSF:
409 case ISCSI_PARAM_IP_FRAGMENT_DISABLE:
410 case ISCSI_PARAM_IPV4_TOS:
411 case ISCSI_PARAM_IPV6_TC:
412 case ISCSI_PARAM_IPV6_FLOW_LABEL:
413 case ISCSI_PARAM_IS_FW_ASSIGNED_IPV6:
414 case ISCSI_PARAM_KEEPALIVE_TMO:
415 case ISCSI_PARAM_LOCAL_PORT:
416 case ISCSI_PARAM_ISID:
417 case ISCSI_PARAM_TSID:
418 case ISCSI_PARAM_DEF_TASKMGMT_TMO:
419 case ISCSI_PARAM_ERL:
420 case ISCSI_PARAM_STATSN:
421 case ISCSI_PARAM_EXP_STATSN:
422 case ISCSI_PARAM_DISCOVERY_PARENT_IDX:
423 case ISCSI_PARAM_DISCOVERY_PARENT_TYPE:
fb734ee3 424 case ISCSI_PARAM_LOCAL_IPADDR:
3128c6c7
MC		 425 return S_IRUGO;
426 default:
427 return 0;
428 }
b78dbba0
MC		 429 case ISCSI_NET_PARAM:
430 switch (param) {
431 case ISCSI_NET_PARAM_IPV4_ADDR:
432 case ISCSI_NET_PARAM_IPV4_SUBNET:
433 case ISCSI_NET_PARAM_IPV4_GW:
434 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
435 case ISCSI_NET_PARAM_IFACE_ENABLE:
436 case ISCSI_NET_PARAM_IPV6_LINKLOCAL:
437 case ISCSI_NET_PARAM_IPV6_ADDR:
438 case ISCSI_NET_PARAM_IPV6_ROUTER:
439 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG:
440 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG:
6ac73e8c
VC		 441 case ISCSI_NET_PARAM_VLAN_ID:
442 case ISCSI_NET_PARAM_VLAN_PRIORITY:
443 case ISCSI_NET_PARAM_VLAN_ENABLED:
943c157b 444 case ISCSI_NET_PARAM_MTU:
2ada7fc5 445 case ISCSI_NET_PARAM_PORT:
f8e93412
HZ		 446 case ISCSI_NET_PARAM_IPADDR_STATE:
447 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_STATE:
448 case ISCSI_NET_PARAM_IPV6_ROUTER_STATE:
449 case ISCSI_NET_PARAM_DELAYED_ACK_EN:
450 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE:
451 case ISCSI_NET_PARAM_TCP_WSF_DISABLE:
452 case ISCSI_NET_PARAM_TCP_WSF:
453 case ISCSI_NET_PARAM_TCP_TIMER_SCALE:
454 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN:
455 case ISCSI_NET_PARAM_CACHE_ID:
456 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN:
457 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN:
458 case ISCSI_NET_PARAM_IPV4_TOS_EN:
459 case ISCSI_NET_PARAM_IPV4_TOS:
460 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN:
461 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN:
462 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID:
463 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN:
464 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN:
465 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID:
466 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN:
467 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE:
468 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN:
469 case ISCSI_NET_PARAM_REDIRECT_EN:
470 case ISCSI_NET_PARAM_IPV4_TTL:
471 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN:
472 case ISCSI_NET_PARAM_IPV6_MLD_EN:
473 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL:
474 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS:
475 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT:
476 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO:
477 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME:
478 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO:
479 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT:
480 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU:
481 return S_IRUGO;
482 default:
483 return 0;
484 }
485 case ISCSI_IFACE_PARAM:
486 switch (param) {
487 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO:
488 case ISCSI_IFACE_PARAM_HDRDGST_EN:
489 case ISCSI_IFACE_PARAM_DATADGST_EN:
490 case ISCSI_IFACE_PARAM_IMM_DATA_EN:
491 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN:
492 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN:
493 case ISCSI_IFACE_PARAM_PDU_INORDER_EN:
494 case ISCSI_IFACE_PARAM_ERL:
495 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH:
496 case ISCSI_IFACE_PARAM_FIRST_BURST:
497 case ISCSI_IFACE_PARAM_MAX_R2T:
498 case ISCSI_IFACE_PARAM_MAX_BURST:
499 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN:
500 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN:
501 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL:
502 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN:
503 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN:
504 case ISCSI_IFACE_PARAM_INITIATOR_NAME:
b78dbba0
MC		 505 return S_IRUGO;
506 default:
507 return 0;
508 }
1e9e2be3
AC		 509 case ISCSI_FLASHNODE_PARAM:
510 switch (param) {
511 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6:
512 case ISCSI_FLASHNODE_PORTAL_TYPE:
513 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE:
514 case ISCSI_FLASHNODE_DISCOVERY_SESS:
515 case ISCSI_FLASHNODE_ENTRY_EN:
516 case ISCSI_FLASHNODE_HDR_DGST_EN:
517 case ISCSI_FLASHNODE_DATA_DGST_EN:
518 case ISCSI_FLASHNODE_IMM_DATA_EN:
519 case ISCSI_FLASHNODE_INITIAL_R2T_EN:
520 case ISCSI_FLASHNODE_DATASEQ_INORDER:
521 case ISCSI_FLASHNODE_PDU_INORDER:
522 case ISCSI_FLASHNODE_CHAP_AUTH_EN:
523 case ISCSI_FLASHNODE_SNACK_REQ_EN:
524 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN:
525 case ISCSI_FLASHNODE_BIDI_CHAP_EN:
526 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL:
527 case ISCSI_FLASHNODE_ERL:
528 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT:
529 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE:
530 case ISCSI_FLASHNODE_TCP_WSF_DISABLE:
531 case ISCSI_FLASHNODE_TCP_TIMER_SCALE:
532 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN:
533 case ISCSI_FLASHNODE_IP_FRAG_DISABLE:
534 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH:
535 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH:
536 case ISCSI_FLASHNODE_FIRST_BURST:
537 case ISCSI_FLASHNODE_DEF_TIME2WAIT:
538 case ISCSI_FLASHNODE_DEF_TIME2RETAIN:
539 case ISCSI_FLASHNODE_MAX_R2T:
540 case ISCSI_FLASHNODE_KEEPALIVE_TMO:
541 case ISCSI_FLASHNODE_ISID:
542 case ISCSI_FLASHNODE_TSID:
543 case ISCSI_FLASHNODE_PORT:
544 case ISCSI_FLASHNODE_MAX_BURST:
545 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO:
546 case ISCSI_FLASHNODE_IPADDR:
547 case ISCSI_FLASHNODE_ALIAS:
548 case ISCSI_FLASHNODE_REDIRECT_IPADDR:
549 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE:
550 case ISCSI_FLASHNODE_LOCAL_PORT:
551 case ISCSI_FLASHNODE_IPV4_TOS:
552 case ISCSI_FLASHNODE_IPV6_TC:
553 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL:
554 case ISCSI_FLASHNODE_NAME:
555 case ISCSI_FLASHNODE_TPGT:
556 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6:
557 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX:
558 case ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE:
559 case ISCSI_FLASHNODE_TCP_XMIT_WSF:
560 case ISCSI_FLASHNODE_TCP_RECV_WSF:
561 case ISCSI_FLASHNODE_CHAP_OUT_IDX:
562 case ISCSI_FLASHNODE_USERNAME:
563 case ISCSI_FLASHNODE_PASSWORD:
564 case ISCSI_FLASHNODE_STATSN:
565 case ISCSI_FLASHNODE_EXP_STATSN:
566 case ISCSI_FLASHNODE_IS_BOOT_TGT:
567 return S_IRUGO;
568 default:
569 return 0;
570 }
3128c6c7
MC		 571 }
572
573 return 0;
574}
575
ea507a25
AC		 576/**
577 * qla4xxx_create chap_list - Create CHAP list from FLASH
578 * @ha: pointer to adapter structure
579 *
580 * Read flash and make a list of CHAP entries, during login when a CHAP entry
581 * is received, it will be checked in this list. If entry exist then the CHAP
582 * entry index is set in the DDB. If CHAP entry does not exist in this list
583 * then a new entry is added in FLASH in CHAP table and the index obtained is
584 * used in the DDB.
585 **/
586static void qla4xxx_create_chap_list(struct scsi_qla_host *ha)
587{
588 int rval = 0;
589 uint8_t *chap_flash_data = NULL;
590 uint32_t offset;
591 dma_addr_t chap_dma;
592 uint32_t chap_size = 0;
593
594 if (is_qla40XX(ha))
595 chap_size = MAX_CHAP_ENTRIES_40XX *
596 sizeof(struct ql4_chap_table);
597 else /* Single region contains CHAP info for both
598 * ports which is divided into half for each port.
599 */
600 chap_size = ha->hw.flt_chap_size / 2;
601
602 chap_flash_data = dma_alloc_coherent(&ha->pdev->dev, chap_size,
603 &chap_dma, GFP_KERNEL);
604 if (!chap_flash_data) {
605 ql4_printk(KERN_ERR, ha, "No memory for chap_flash_data\n");
606 return;
607 }
608
609 if (is_qla40XX(ha)) {
610 offset = FLASH_CHAP_OFFSET;
611 } else {
612 offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2);
613 if (ha->port_num == 1)
614 offset += chap_size;
615 }
616
617 rval = qla4xxx_get_flash(ha, chap_dma, offset, chap_size);
618 if (rval != QLA_SUCCESS)
619 goto exit_chap_list;
620
621 if (ha->chap_list == NULL)
622 ha->chap_list = vmalloc(chap_size);
623 if (ha->chap_list == NULL) {
624 ql4_printk(KERN_ERR, ha, "No memory for ha->chap_list\n");
625 goto exit_chap_list;
626 }
627
628 memset(ha->chap_list, 0, chap_size);
629 memcpy(ha->chap_list, chap_flash_data, chap_size);
630
631exit_chap_list:
632 dma_free_coherent(&ha->pdev->dev, chap_size, chap_flash_data, chap_dma);
633}
634
26ffd7b4
AC		 635static int qla4xxx_get_chap_by_index(struct scsi_qla_host *ha,
636 int16_t chap_index,
637 struct ql4_chap_table **chap_entry)
638{
639 int rval = QLA_ERROR;
640 int max_chap_entries;
641
642 if (!ha->chap_list) {
643 ql4_printk(KERN_ERR, ha, "CHAP table cache is empty!\n");
644 rval = QLA_ERROR;
645 goto exit_get_chap;
646 }
647
648 if (is_qla80XX(ha))
649 max_chap_entries = (ha->hw.flt_chap_size / 2) /
650 sizeof(struct ql4_chap_table);
651 else
652 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
653
654 if (chap_index > max_chap_entries) {
655 ql4_printk(KERN_ERR, ha, "Invalid Chap index\n");
656 rval = QLA_ERROR;
657 goto exit_get_chap;
658 }
659
660 *chap_entry = (struct ql4_chap_table *)ha->chap_list + chap_index;
661 if ((*chap_entry)->cookie !=
662 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) {
663 rval = QLA_ERROR;
664 *chap_entry = NULL;
665 } else {
666 rval = QLA_SUCCESS;
667 }
668
669exit_get_chap:
670 return rval;
671}
672
673/**
674 * qla4xxx_find_free_chap_index - Find the first free chap index
675 * @ha: pointer to adapter structure
676 * @chap_index: CHAP index to be returned
677 *
678 * Find the first free chap index available in the chap table
679 *
680 * Note: Caller should acquire the chap lock before getting here.
681 **/
682static int qla4xxx_find_free_chap_index(struct scsi_qla_host *ha,
683 uint16_t *chap_index)
684{
685 int i, rval;
686 int free_index = -1;
687 int max_chap_entries = 0;
688 struct ql4_chap_table *chap_table;
689
690 if (is_qla80XX(ha))
691 max_chap_entries = (ha->hw.flt_chap_size / 2) /
692 sizeof(struct ql4_chap_table);
693 else
694 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
695
696 if (!ha->chap_list) {
697 ql4_printk(KERN_ERR, ha, "CHAP table cache is empty!\n");
698 rval = QLA_ERROR;
699 goto exit_find_chap;
700 }
701
702 for (i = 0; i < max_chap_entries; i++) {
703 chap_table = (struct ql4_chap_table *)ha->chap_list + i;
704
705 if ((chap_table->cookie !=
706 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) &&
707 (i > MAX_RESRV_CHAP_IDX)) {
708 free_index = i;
709 break;
710 }
711 }
712
713 if (free_index != -1) {
714 *chap_index = free_index;
715 rval = QLA_SUCCESS;
716 } else {
717 rval = QLA_ERROR;
718 }
719
720exit_find_chap:
721 return rval;
722}
723
376738af
NJ		 724static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx,
725 uint32_t *num_entries, char *buf)
726{
727 struct scsi_qla_host *ha = to_qla_host(shost);
728 struct ql4_chap_table *chap_table;
729 struct iscsi_chap_rec *chap_rec;
730 int max_chap_entries = 0;
731 int valid_chap_entries = 0;
732 int ret = 0, i;
733
d11b0ca3 734 if (is_qla80XX(ha))
376738af
NJ		 735 max_chap_entries = (ha->hw.flt_chap_size / 2) /
736 sizeof(struct ql4_chap_table);
737 else
738 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
739
740 ql4_printk(KERN_INFO, ha, "%s: num_entries = %d, CHAP idx = %d\n",
741 __func__, *num_entries, chap_tbl_idx);
742
743 if (!buf) {
744 ret = -ENOMEM;
745 goto exit_get_chap_list;
746 }
747
ea507a25
AC		 748 qla4xxx_create_chap_list(ha);
749
376738af
NJ		 750 chap_rec = (struct iscsi_chap_rec *) buf;
751 mutex_lock(&ha->chap_sem);
752 for (i = chap_tbl_idx; i < max_chap_entries; i++) {
753 chap_table = (struct ql4_chap_table *)ha->chap_list + i;
754 if (chap_table->cookie !=
755 __constant_cpu_to_le16(CHAP_VALID_COOKIE))
756 continue;
757
758 chap_rec->chap_tbl_idx = i;
759 strncpy(chap_rec->username, chap_table->name,
760 ISCSI_CHAP_AUTH_NAME_MAX_LEN);
761 strncpy(chap_rec->password, chap_table->secret,
762 QL4_CHAP_MAX_SECRET_LEN);
763 chap_rec->password_length = chap_table->secret_len;
764
765 if (chap_table->flags & BIT_7) /* local */
766 chap_rec->chap_type = CHAP_TYPE_OUT;
767
768 if (chap_table->flags & BIT_6) /* peer */
769 chap_rec->chap_type = CHAP_TYPE_IN;
770
771 chap_rec++;
772
773 valid_chap_entries++;
774 if (valid_chap_entries == *num_entries)
775 break;
776 else
777 continue;
778 }
779 mutex_unlock(&ha->chap_sem);
780
781exit_get_chap_list:
782 ql4_printk(KERN_INFO, ha, "%s: Valid CHAP Entries = %d\n",
783 __func__, valid_chap_entries);
784 *num_entries = valid_chap_entries;
785 return ret;
786}
787
788static int __qla4xxx_is_chap_active(struct device *dev, void *data)
789{
790 int ret = 0;
791 uint16_t *chap_tbl_idx = (uint16_t *) data;
792 struct iscsi_cls_session *cls_session;
793 struct iscsi_session *sess;
794 struct ddb_entry *ddb_entry;
795
796 if (!iscsi_is_session_dev(dev))
797 goto exit_is_chap_active;
798
799 cls_session = iscsi_dev_to_session(dev);
800 sess = cls_session->dd_data;
801 ddb_entry = sess->dd_data;
802
803 if (iscsi_session_chkready(cls_session))
804 goto exit_is_chap_active;
805
806 if (ddb_entry->chap_tbl_idx == *chap_tbl_idx)
807 ret = 1;
808
809exit_is_chap_active:
810 return ret;
811}
812
813static int qla4xxx_is_chap_active(struct Scsi_Host *shost,
814 uint16_t chap_tbl_idx)
815{
816 int ret = 0;
817
818 ret = device_for_each_child(&shost->shost_gendev, &chap_tbl_idx,
819 __qla4xxx_is_chap_active);
820
821 return ret;
822}
823
824static int qla4xxx_delete_chap(struct Scsi_Host *shost, uint16_t chap_tbl_idx)
825{
826 struct scsi_qla_host *ha = to_qla_host(shost);
827 struct ql4_chap_table *chap_table;
828 dma_addr_t chap_dma;
829 int max_chap_entries = 0;
830 uint32_t offset = 0;
831 uint32_t chap_size;
832 int ret = 0;
833
834 chap_table = dma_pool_alloc(ha->chap_dma_pool, GFP_KERNEL, &chap_dma);
835 if (chap_table == NULL)
836 return -ENOMEM;
837
838 memset(chap_table, 0, sizeof(struct ql4_chap_table));
839
d11b0ca3 840 if (is_qla80XX(ha))
376738af
NJ		 841 max_chap_entries = (ha->hw.flt_chap_size / 2) /
842 sizeof(struct ql4_chap_table);
843 else
844 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
845
846 if (chap_tbl_idx > max_chap_entries) {
847 ret = -EINVAL;
848 goto exit_delete_chap;
849 }
850
851 /* Check if chap index is in use.
852 * If chap is in use don't delet chap entry */
853 ret = qla4xxx_is_chap_active(shost, chap_tbl_idx);
854 if (ret) {
855 ql4_printk(KERN_INFO, ha, "CHAP entry %d is in use, cannot "
856 "delete from flash\n", chap_tbl_idx);
857 ret = -EBUSY;
858 goto exit_delete_chap;
859 }
860
861 chap_size = sizeof(struct ql4_chap_table);
862 if (is_qla40XX(ha))
863 offset = FLASH_CHAP_OFFSET | (chap_tbl_idx * chap_size);
864 else {
865 offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2);
866 /* flt_chap_size is CHAP table size for both ports
867 * so divide it by 2 to calculate the offset for second port
868 */
869 if (ha->port_num == 1)
870 offset += (ha->hw.flt_chap_size / 2);
871 offset += (chap_tbl_idx * chap_size);
872 }
873
874 ret = qla4xxx_get_flash(ha, chap_dma, offset, chap_size);
875 if (ret != QLA_SUCCESS) {
876 ret = -EINVAL;
877 goto exit_delete_chap;
878 }
879
880 DEBUG2(ql4_printk(KERN_INFO, ha, "Chap Cookie: x%x\n",
881 __le16_to_cpu(chap_table->cookie)));
882
883 if (__le16_to_cpu(chap_table->cookie) != CHAP_VALID_COOKIE) {
884 ql4_printk(KERN_ERR, ha, "No valid chap entry found\n");
885 goto exit_delete_chap;
886 }
887
888 chap_table->cookie = __constant_cpu_to_le16(0xFFFF);
889
890 offset = FLASH_CHAP_OFFSET |
891 (chap_tbl_idx * sizeof(struct ql4_chap_table));
892 ret = qla4xxx_set_flash(ha, chap_dma, offset, chap_size,
893 FLASH_OPT_RMW_COMMIT);
894 if (ret == QLA_SUCCESS && ha->chap_list) {
895 mutex_lock(&ha->chap_sem);
896 /* Update ha chap_list cache */
897 memcpy((struct ql4_chap_table *)ha->chap_list + chap_tbl_idx,
898 chap_table, sizeof(struct ql4_chap_table));
899 mutex_unlock(&ha->chap_sem);
900 }
901 if (ret != QLA_SUCCESS)
902 ret = -EINVAL;
903
904exit_delete_chap:
905 dma_pool_free(ha->chap_dma_pool, chap_table, chap_dma);
906 return ret;
907}
908
26ffd7b4
AC		 909/**
910 * qla4xxx_set_chap_entry - Make chap entry with given information
911 * @shost: pointer to host
912 * @data: chap info - credentials, index and type to make chap entry
913 * @len: length of data
914 *
915 * Add or update chap entry with the given information
916 **/
917static int qla4xxx_set_chap_entry(struct Scsi_Host *shost, void *data, int len)
918{
919 struct scsi_qla_host *ha = to_qla_host(shost);
920 struct iscsi_chap_rec chap_rec;
921 struct ql4_chap_table *chap_entry = NULL;
922 struct iscsi_param_info *param_info;
923 struct nlattr *attr;
924 int max_chap_entries = 0;
925 int type;
926 int rem = len;
927 int rc = 0;
3c60cfd7 928 int size;
26ffd7b4
AC		 929
930 memset(&chap_rec, 0, sizeof(chap_rec));
931
932 nla_for_each_attr(attr, data, len, rem) {
933 param_info = nla_data(attr);
934
935 switch (param_info->param) {
936 case ISCSI_CHAP_PARAM_INDEX:
937 chap_rec.chap_tbl_idx = *(uint16_t *)param_info->value;
938 break;
939 case ISCSI_CHAP_PARAM_CHAP_TYPE:
940 chap_rec.chap_type = param_info->value[0];
941 break;
942 case ISCSI_CHAP_PARAM_USERNAME:
3c60cfd7
DC		 943 size = min_t(size_t, sizeof(chap_rec.username),
944 param_info->len);
945 memcpy(chap_rec.username, param_info->value, size);
26ffd7b4
AC		 946 break;
947 case ISCSI_CHAP_PARAM_PASSWORD:
3c60cfd7
DC		 948 size = min_t(size_t, sizeof(chap_rec.password),
949 param_info->len);
950 memcpy(chap_rec.password, param_info->value, size);
26ffd7b4
AC		 951 break;
952 case ISCSI_CHAP_PARAM_PASSWORD_LEN:
953 chap_rec.password_length = param_info->value[0];
954 break;
955 default:
956 ql4_printk(KERN_ERR, ha,
957 "%s: No such sysfs attribute\n", __func__);
958 rc = -ENOSYS;
959 goto exit_set_chap;
960 };
961 }
962
963 if (chap_rec.chap_type == CHAP_TYPE_IN)
964 type = BIDI_CHAP;
965 else
966 type = LOCAL_CHAP;
967
968 if (is_qla80XX(ha))
969 max_chap_entries = (ha->hw.flt_chap_size / 2) /
970 sizeof(struct ql4_chap_table);
971 else
972 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
973
974 mutex_lock(&ha->chap_sem);
975 if (chap_rec.chap_tbl_idx < max_chap_entries) {
976 rc = qla4xxx_get_chap_by_index(ha, chap_rec.chap_tbl_idx,
977 &chap_entry);
978 if (!rc) {
979 if (!(type == qla4xxx_get_chap_type(chap_entry))) {
980 ql4_printk(KERN_INFO, ha,
981 "Type mismatch for CHAP entry %d\n",
982 chap_rec.chap_tbl_idx);
983 rc = -EINVAL;
984 goto exit_unlock_chap;
985 }
986
987 /* If chap index is in use then don't modify it */
988 rc = qla4xxx_is_chap_active(shost,
989 chap_rec.chap_tbl_idx);
990 if (rc) {
991 ql4_printk(KERN_INFO, ha,
992 "CHAP entry %d is in use\n",
993 chap_rec.chap_tbl_idx);
994 rc = -EBUSY;
995 goto exit_unlock_chap;
996 }
997 }
998 } else {
999 rc = qla4xxx_find_free_chap_index(ha, &chap_rec.chap_tbl_idx);
1000 if (rc) {
1001 ql4_printk(KERN_INFO, ha, "CHAP entry not available\n");
1002 rc = -EBUSY;
1003 goto exit_unlock_chap;
1004 }
1005 }
1006
1007 rc = qla4xxx_set_chap(ha, chap_rec.username, chap_rec.password,
1008 chap_rec.chap_tbl_idx, type);
1009
1010exit_unlock_chap:
1011 mutex_unlock(&ha->chap_sem);
1012
1013exit_set_chap:
1014 return rc;
1015}
1016
4161cee5
LC		 1017
1018static int qla4xxx_get_host_stats(struct Scsi_Host *shost, char *buf, int len)
1019{
1020 struct scsi_qla_host *ha = to_qla_host(shost);
1021 struct iscsi_offload_host_stats *host_stats = NULL;
1022 int host_stats_size;
1023 int ret = 0;
1024 int ddb_idx = 0;
1025 struct ql_iscsi_stats *ql_iscsi_stats = NULL;
1026 int stats_size;
1027 dma_addr_t iscsi_stats_dma;
1028
1029 DEBUG2(ql4_printk(KERN_INFO, ha, "Func: %s\n", __func__));
1030
1031 host_stats_size = sizeof(struct iscsi_offload_host_stats);
1032
1033 if (host_stats_size != len) {
1034 ql4_printk(KERN_INFO, ha, "%s: host_stats size mismatch expected = %d, is = %d\n",
1035 __func__, len, host_stats_size);
1036 ret = -EINVAL;
1037 goto exit_host_stats;
1038 }
1039 host_stats = (struct iscsi_offload_host_stats *)buf;
1040
1041 if (!buf) {
1042 ret = -ENOMEM;
1043 goto exit_host_stats;
1044 }
1045
1046 stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats));
1047
1048 ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size,
1049 &iscsi_stats_dma, GFP_KERNEL);
1050 if (!ql_iscsi_stats) {
1051 ql4_printk(KERN_ERR, ha,
1052 "Unable to allocate memory for iscsi stats\n");
1053 goto exit_host_stats;
1054 }
1055
1056 ret = qla4xxx_get_mgmt_data(ha, ddb_idx, stats_size,
1057 iscsi_stats_dma);
1058 if (ret != QLA_SUCCESS) {
1059 ql4_printk(KERN_ERR, ha,
1060 "Unable to retrieve iscsi stats\n");
1061 goto exit_host_stats;
1062 }
1063 host_stats->mactx_frames = le64_to_cpu(ql_iscsi_stats->mac_tx_frames);
1064 host_stats->mactx_bytes = le64_to_cpu(ql_iscsi_stats->mac_tx_bytes);
1065 host_stats->mactx_multicast_frames =
1066 le64_to_cpu(ql_iscsi_stats->mac_tx_multicast_frames);
1067 host_stats->mactx_broadcast_frames =
1068 le64_to_cpu(ql_iscsi_stats->mac_tx_broadcast_frames);
1069 host_stats->mactx_pause_frames =
1070 le64_to_cpu(ql_iscsi_stats->mac_tx_pause_frames);
1071 host_stats->mactx_control_frames =
1072 le64_to_cpu(ql_iscsi_stats->mac_tx_control_frames);
1073 host_stats->mactx_deferral =
1074 le64_to_cpu(ql_iscsi_stats->mac_tx_deferral);
1075 host_stats->mactx_excess_deferral =
1076 le64_to_cpu(ql_iscsi_stats->mac_tx_excess_deferral);
1077 host_stats->mactx_late_collision =
1078 le64_to_cpu(ql_iscsi_stats->mac_tx_late_collision);
1079 host_stats->mactx_abort = le64_to_cpu(ql_iscsi_stats->mac_tx_abort);
1080 host_stats->mactx_single_collision =
1081 le64_to_cpu(ql_iscsi_stats->mac_tx_single_collision);
1082 host_stats->mactx_multiple_collision =
1083 le64_to_cpu(ql_iscsi_stats->mac_tx_multiple_collision);
1084 host_stats->mactx_collision =
1085 le64_to_cpu(ql_iscsi_stats->mac_tx_collision);
1086 host_stats->mactx_frames_dropped =
1087 le64_to_cpu(ql_iscsi_stats->mac_tx_frames_dropped);
1088 host_stats->mactx_jumbo_frames =
1089 le64_to_cpu(ql_iscsi_stats->mac_tx_jumbo_frames);
1090 host_stats->macrx_frames = le64_to_cpu(ql_iscsi_stats->mac_rx_frames);
1091 host_stats->macrx_bytes = le64_to_cpu(ql_iscsi_stats->mac_rx_bytes);
1092 host_stats->macrx_unknown_control_frames =
1093 le64_to_cpu(ql_iscsi_stats->mac_rx_unknown_control_frames);
1094 host_stats->macrx_pause_frames =
1095 le64_to_cpu(ql_iscsi_stats->mac_rx_pause_frames);
1096 host_stats->macrx_control_frames =
1097 le64_to_cpu(ql_iscsi_stats->mac_rx_control_frames);
1098 host_stats->macrx_dribble =
1099 le64_to_cpu(ql_iscsi_stats->mac_rx_dribble);
1100 host_stats->macrx_frame_length_error =
1101 le64_to_cpu(ql_iscsi_stats->mac_rx_frame_length_error);
1102 host_stats->macrx_jabber = le64_to_cpu(ql_iscsi_stats->mac_rx_jabber);
1103 host_stats->macrx_carrier_sense_error =
1104 le64_to_cpu(ql_iscsi_stats->mac_rx_carrier_sense_error);
1105 host_stats->macrx_frame_discarded =
1106 le64_to_cpu(ql_iscsi_stats->mac_rx_frame_discarded);
1107 host_stats->macrx_frames_dropped =
1108 le64_to_cpu(ql_iscsi_stats->mac_rx_frames_dropped);
1109 host_stats->mac_crc_error = le64_to_cpu(ql_iscsi_stats->mac_crc_error);
1110 host_stats->mac_encoding_error =
1111 le64_to_cpu(ql_iscsi_stats->mac_encoding_error);
1112 host_stats->macrx_length_error_large =
1113 le64_to_cpu(ql_iscsi_stats->mac_rx_length_error_large);
1114 host_stats->macrx_length_error_small =
1115 le64_to_cpu(ql_iscsi_stats->mac_rx_length_error_small);
1116 host_stats->macrx_multicast_frames =
1117 le64_to_cpu(ql_iscsi_stats->mac_rx_multicast_frames);
1118 host_stats->macrx_broadcast_frames =
1119 le64_to_cpu(ql_iscsi_stats->mac_rx_broadcast_frames);
1120 host_stats->iptx_packets = le64_to_cpu(ql_iscsi_stats->ip_tx_packets);
1121 host_stats->iptx_bytes = le64_to_cpu(ql_iscsi_stats->ip_tx_bytes);
1122 host_stats->iptx_fragments =
1123 le64_to_cpu(ql_iscsi_stats->ip_tx_fragments);
1124 host_stats->iprx_packets = le64_to_cpu(ql_iscsi_stats->ip_rx_packets);
1125 host_stats->iprx_bytes = le64_to_cpu(ql_iscsi_stats->ip_rx_bytes);
1126 host_stats->iprx_fragments =
1127 le64_to_cpu(ql_iscsi_stats->ip_rx_fragments);
1128 host_stats->ip_datagram_reassembly =
1129 le64_to_cpu(ql_iscsi_stats->ip_datagram_reassembly);
1130 host_stats->ip_invalid_address_error =
1131 le64_to_cpu(ql_iscsi_stats->ip_invalid_address_error);
1132 host_stats->ip_error_packets =
1133 le64_to_cpu(ql_iscsi_stats->ip_error_packets);
1134 host_stats->ip_fragrx_overlap =
1135 le64_to_cpu(ql_iscsi_stats->ip_fragrx_overlap);
1136 host_stats->ip_fragrx_outoforder =
1137 le64_to_cpu(ql_iscsi_stats->ip_fragrx_outoforder);
1138 host_stats->ip_datagram_reassembly_timeout =
1139 le64_to_cpu(ql_iscsi_stats->ip_datagram_reassembly_timeout);
1140 host_stats->ipv6tx_packets =
1141 le64_to_cpu(ql_iscsi_stats->ipv6_tx_packets);
1142 host_stats->ipv6tx_bytes = le64_to_cpu(ql_iscsi_stats->ipv6_tx_bytes);
1143 host_stats->ipv6tx_fragments =
1144 le64_to_cpu(ql_iscsi_stats->ipv6_tx_fragments);
1145 host_stats->ipv6rx_packets =
1146 le64_to_cpu(ql_iscsi_stats->ipv6_rx_packets);
1147 host_stats->ipv6rx_bytes = le64_to_cpu(ql_iscsi_stats->ipv6_rx_bytes);
1148 host_stats->ipv6rx_fragments =
1149 le64_to_cpu(ql_iscsi_stats->ipv6_rx_fragments);
1150 host_stats->ipv6_datagram_reassembly =
1151 le64_to_cpu(ql_iscsi_stats->ipv6_datagram_reassembly);
1152 host_stats->ipv6_invalid_address_error =
1153 le64_to_cpu(ql_iscsi_stats->ipv6_invalid_address_error);
1154 host_stats->ipv6_error_packets =
1155 le64_to_cpu(ql_iscsi_stats->ipv6_error_packets);
1156 host_stats->ipv6_fragrx_overlap =
1157 le64_to_cpu(ql_iscsi_stats->ipv6_fragrx_overlap);
1158 host_stats->ipv6_fragrx_outoforder =
1159 le64_to_cpu(ql_iscsi_stats->ipv6_fragrx_outoforder);
1160 host_stats->ipv6_datagram_reassembly_timeout =
1161 le64_to_cpu(ql_iscsi_stats->ipv6_datagram_reassembly_timeout);
1162 host_stats->tcptx_segments =
1163 le64_to_cpu(ql_iscsi_stats->tcp_tx_segments);
1164 host_stats->tcptx_bytes = le64_to_cpu(ql_iscsi_stats->tcp_tx_bytes);
1165 host_stats->tcprx_segments =
1166 le64_to_cpu(ql_iscsi_stats->tcp_rx_segments);
1167 host_stats->tcprx_byte = le64_to_cpu(ql_iscsi_stats->tcp_rx_byte);
1168 host_stats->tcp_duplicate_ack_retx =
1169 le64_to_cpu(ql_iscsi_stats->tcp_duplicate_ack_retx);
1170 host_stats->tcp_retx_timer_expired =
1171 le64_to_cpu(ql_iscsi_stats->tcp_retx_timer_expired);
1172 host_stats->tcprx_duplicate_ack =
1173 le64_to_cpu(ql_iscsi_stats->tcp_rx_duplicate_ack);
1174 host_stats->tcprx_pure_ackr =
1175 le64_to_cpu(ql_iscsi_stats->tcp_rx_pure_ackr);
1176 host_stats->tcptx_delayed_ack =
1177 le64_to_cpu(ql_iscsi_stats->tcp_tx_delayed_ack);
1178 host_stats->tcptx_pure_ack =
1179 le64_to_cpu(ql_iscsi_stats->tcp_tx_pure_ack);
1180 host_stats->tcprx_segment_error =
1181 le64_to_cpu(ql_iscsi_stats->tcp_rx_segment_error);
1182 host_stats->tcprx_segment_outoforder =
1183 le64_to_cpu(ql_iscsi_stats->tcp_rx_segment_outoforder);
1184 host_stats->tcprx_window_probe =
1185 le64_to_cpu(ql_iscsi_stats->tcp_rx_window_probe);
1186 host_stats->tcprx_window_update =
1187 le64_to_cpu(ql_iscsi_stats->tcp_rx_window_update);
1188 host_stats->tcptx_window_probe_persist =
1189 le64_to_cpu(ql_iscsi_stats->tcp_tx_window_probe_persist);
1190 host_stats->ecc_error_correction =
1191 le64_to_cpu(ql_iscsi_stats->ecc_error_correction);
1192 host_stats->iscsi_pdu_tx = le64_to_cpu(ql_iscsi_stats->iscsi_pdu_tx);
1193 host_stats->iscsi_data_bytes_tx =
1194 le64_to_cpu(ql_iscsi_stats->iscsi_data_bytes_tx);
1195 host_stats->iscsi_pdu_rx = le64_to_cpu(ql_iscsi_stats->iscsi_pdu_rx);
1196 host_stats->iscsi_data_bytes_rx =
1197 le64_to_cpu(ql_iscsi_stats->iscsi_data_bytes_rx);
1198 host_stats->iscsi_io_completed =
1199 le64_to_cpu(ql_iscsi_stats->iscsi_io_completed);
1200 host_stats->iscsi_unexpected_io_rx =
1201 le64_to_cpu(ql_iscsi_stats->iscsi_unexpected_io_rx);
1202 host_stats->iscsi_format_error =
1203 le64_to_cpu(ql_iscsi_stats->iscsi_format_error);
1204 host_stats->iscsi_hdr_digest_error =
1205 le64_to_cpu(ql_iscsi_stats->iscsi_hdr_digest_error);
1206 host_stats->iscsi_data_digest_error =
1207 le64_to_cpu(ql_iscsi_stats->iscsi_data_digest_error);
1208 host_stats->iscsi_sequence_error =
1209 le64_to_cpu(ql_iscsi_stats->iscsi_sequence_error);
1210exit_host_stats:
1211 if (ql_iscsi_stats)
1212 dma_free_coherent(&ha->pdev->dev, host_stats_size,
1213 ql_iscsi_stats, iscsi_stats_dma);
1214
1215 ql4_printk(KERN_INFO, ha, "%s: Get host stats done\n",
1216 __func__);
1217 return ret;
1218}
1219
ed1086e0
VC		 1220static int qla4xxx_get_iface_param(struct iscsi_iface *iface,
1221 enum iscsi_param_type param_type,
1222 int param, char *buf)
1223{
1224 struct Scsi_Host *shost = iscsi_iface_to_shost(iface);
1225 struct scsi_qla_host *ha = to_qla_host(shost);
f8e93412
HZ		 1226 int ival;
1227 char *pval = NULL;
ed1086e0
VC		 1228 int len = -ENOSYS;
1229
f8e93412
HZ		 1230 if (param_type == ISCSI_NET_PARAM) {
1231 switch (param) {
1232 case ISCSI_NET_PARAM_IPV4_ADDR:
1233 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address);
1234 break;
1235 case ISCSI_NET_PARAM_IPV4_SUBNET:
1236 len = sprintf(buf, "%pI4\n",
1237 &ha->ip_config.subnet_mask);
1238 break;
1239 case ISCSI_NET_PARAM_IPV4_GW:
1240 len = sprintf(buf, "%pI4\n", &ha->ip_config.gateway);
1241 break;
1242 case ISCSI_NET_PARAM_IFACE_ENABLE:
1243 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1244 OP_STATE(ha->ip_config.ipv4_options,
1245 IPOPT_IPV4_PROTOCOL_ENABLE, pval);
1246 } else {
1247 OP_STATE(ha->ip_config.ipv6_options,
1248 IPV6_OPT_IPV6_PROTOCOL_ENABLE, pval);
1249 }
ed1086e0 1250
f8e93412
HZ		 1251 len = sprintf(buf, "%s\n", pval);
1252 break;
1253 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
ed1086e0 1254 len = sprintf(buf, "%s\n",
f8e93412
HZ		 1255 (ha->ip_config.tcp_options &
1256 TCPOPT_DHCP_ENABLE) ?
1257 "dhcp" : "static");
1258 break;
1259 case ISCSI_NET_PARAM_IPV6_ADDR:
1260 if (iface->iface_num == 0)
1261 len = sprintf(buf, "%pI6\n",
1262 &ha->ip_config.ipv6_addr0);
1263 if (iface->iface_num == 1)
1264 len = sprintf(buf, "%pI6\n",
1265 &ha->ip_config.ipv6_addr1);
1266 break;
1267 case ISCSI_NET_PARAM_IPV6_LINKLOCAL:
1268 len = sprintf(buf, "%pI6\n",
1269 &ha->ip_config.ipv6_link_local_addr);
1270 break;
1271 case ISCSI_NET_PARAM_IPV6_ROUTER:
1272 len = sprintf(buf, "%pI6\n",
1273 &ha->ip_config.ipv6_default_router_addr);
1274 break;
1275 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG:
1276 pval = (ha->ip_config.ipv6_addl_options &
1277 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE) ?
1278 "nd" : "static";
1279
1280 len = sprintf(buf, "%s\n", pval);
1281 break;
1282 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG:
1283 pval = (ha->ip_config.ipv6_addl_options &
1284 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR) ?
1285 "auto" : "static";
1286
1287 len = sprintf(buf, "%s\n", pval);
1288 break;
1289 case ISCSI_NET_PARAM_VLAN_ID:
1290 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1291 ival = ha->ip_config.ipv4_vlan_tag &
1292 ISCSI_MAX_VLAN_ID;
1293 else
1294 ival = ha->ip_config.ipv6_vlan_tag &
1295 ISCSI_MAX_VLAN_ID;
1296
1297 len = sprintf(buf, "%d\n", ival);
1298 break;
1299 case ISCSI_NET_PARAM_VLAN_PRIORITY:
1300 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1301 ival = (ha->ip_config.ipv4_vlan_tag >> 13) &
1302 ISCSI_MAX_VLAN_PRIORITY;
1303 else
1304 ival = (ha->ip_config.ipv6_vlan_tag >> 13) &
1305 ISCSI_MAX_VLAN_PRIORITY;
1306
1307 len = sprintf(buf, "%d\n", ival);
1308 break;
1309 case ISCSI_NET_PARAM_VLAN_ENABLED:
1310 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1311 OP_STATE(ha->ip_config.ipv4_options,
1312 IPOPT_VLAN_TAGGING_ENABLE, pval);
1313 } else {
1314 OP_STATE(ha->ip_config.ipv6_options,
1315 IPV6_OPT_VLAN_TAGGING_ENABLE, pval);
1316 }
1317 len = sprintf(buf, "%s\n", pval);
1318 break;
1319 case ISCSI_NET_PARAM_MTU:
1320 len = sprintf(buf, "%d\n", ha->ip_config.eth_mtu_size);
1321 break;
1322 case ISCSI_NET_PARAM_PORT:
1323 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1324 len = sprintf(buf, "%d\n",
1325 ha->ip_config.ipv4_port);
1326 else
1327 len = sprintf(buf, "%d\n",
1328 ha->ip_config.ipv6_port);
1329 break;
1330 case ISCSI_NET_PARAM_IPADDR_STATE:
1331 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1332 pval = iscsi_get_ipaddress_state_name(
1333 ha->ip_config.ipv4_addr_state);
1334 } else {
1335 if (iface->iface_num == 0)
1336 pval = iscsi_get_ipaddress_state_name(
1337 ha->ip_config.ipv6_addr0_state);
1338 else if (iface->iface_num == 1)
1339 pval = iscsi_get_ipaddress_state_name(
1340 ha->ip_config.ipv6_addr1_state);
1341 }
1342
1343 len = sprintf(buf, "%s\n", pval);
1344 break;
1345 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_STATE:
1346 pval = iscsi_get_ipaddress_state_name(
1347 ha->ip_config.ipv6_link_local_state);
1348 len = sprintf(buf, "%s\n", pval);
1349 break;
1350 case ISCSI_NET_PARAM_IPV6_ROUTER_STATE:
1351 pval = iscsi_get_router_state_name(
1352 ha->ip_config.ipv6_default_router_state);
1353 len = sprintf(buf, "%s\n", pval);
1354 break;
1355 case ISCSI_NET_PARAM_DELAYED_ACK_EN:
1356 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1357 OP_STATE(~ha->ip_config.tcp_options,
1358 TCPOPT_DELAYED_ACK_DISABLE, pval);
1359 } else {
1360 OP_STATE(~ha->ip_config.ipv6_tcp_options,
1361 IPV6_TCPOPT_DELAYED_ACK_DISABLE, pval);
1362 }
1363 len = sprintf(buf, "%s\n", pval);
1364 break;
1365 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE:
1366 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1367 OP_STATE(~ha->ip_config.tcp_options,
1368 TCPOPT_NAGLE_ALGO_DISABLE, pval);
1369 } else {
1370 OP_STATE(~ha->ip_config.ipv6_tcp_options,
1371 IPV6_TCPOPT_NAGLE_ALGO_DISABLE, pval);
1372 }
1373 len = sprintf(buf, "%s\n", pval);
1374 break;
1375 case ISCSI_NET_PARAM_TCP_WSF_DISABLE:
1376 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1377 OP_STATE(~ha->ip_config.tcp_options,
1378 TCPOPT_WINDOW_SCALE_DISABLE, pval);
1379 } else {
1380 OP_STATE(~ha->ip_config.ipv6_tcp_options,
1381 IPV6_TCPOPT_WINDOW_SCALE_DISABLE,
1382 pval);
1383 }
1384 len = sprintf(buf, "%s\n", pval);
1385 break;
1386 case ISCSI_NET_PARAM_TCP_WSF:
1387 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1388 len = sprintf(buf, "%d\n",
1389 ha->ip_config.tcp_wsf);
1390 else
1391 len = sprintf(buf, "%d\n",
1392 ha->ip_config.ipv6_tcp_wsf);
1393 break;
1394 case ISCSI_NET_PARAM_TCP_TIMER_SCALE:
1395 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1396 ival = (ha->ip_config.tcp_options &
1397 TCPOPT_TIMER_SCALE) >> 1;
1398 else
1399 ival = (ha->ip_config.ipv6_tcp_options &
1400 IPV6_TCPOPT_TIMER_SCALE) >> 1;
1401
1402 len = sprintf(buf, "%d\n", ival);
1403 break;
1404 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN:
1405 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1406 OP_STATE(ha->ip_config.tcp_options,
1407 TCPOPT_TIMESTAMP_ENABLE, pval);
1408 } else {
1409 OP_STATE(ha->ip_config.ipv6_tcp_options,
1410 IPV6_TCPOPT_TIMESTAMP_EN, pval);
1411 }
1412 len = sprintf(buf, "%s\n", pval);
1413 break;
1414 case ISCSI_NET_PARAM_CACHE_ID:
1415 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1416 len = sprintf(buf, "%d\n",
1417 ha->ip_config.ipv4_cache_id);
1418 else
1419 len = sprintf(buf, "%d\n",
1420 ha->ip_config.ipv6_cache_id);
1421 break;
1422 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN:
1423 OP_STATE(ha->ip_config.tcp_options,
1424 TCPOPT_DNS_SERVER_IP_EN, pval);
1425
1426 len = sprintf(buf, "%s\n", pval);
1427 break;
1428 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN:
1429 OP_STATE(ha->ip_config.tcp_options,
1430 TCPOPT_SLP_DA_INFO_EN, pval);
1431
1432 len = sprintf(buf, "%s\n", pval);
1433 break;
1434 case ISCSI_NET_PARAM_IPV4_TOS_EN:
1435 OP_STATE(ha->ip_config.ipv4_options,
1436 IPOPT_IPV4_TOS_EN, pval);
1437
1438 len = sprintf(buf, "%s\n", pval);
1439 break;
1440 case ISCSI_NET_PARAM_IPV4_TOS:
1441 len = sprintf(buf, "%d\n", ha->ip_config.ipv4_tos);
1442 break;
1443 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN:
1444 OP_STATE(ha->ip_config.ipv4_options,
1445 IPOPT_GRAT_ARP_EN, pval);
1446
1447 len = sprintf(buf, "%s\n", pval);
1448 break;
1449 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN:
1450 OP_STATE(ha->ip_config.ipv4_options, IPOPT_ALT_CID_EN,
1451 pval);
1452
1453 len = sprintf(buf, "%s\n", pval);
1454 break;
1455 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID:
1456 pval = (ha->ip_config.ipv4_alt_cid_len) ?
1457 (char *)ha->ip_config.ipv4_alt_cid : "";
1458
1459 len = sprintf(buf, "%s\n", pval);
1460 break;
1461 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN:
1462 OP_STATE(ha->ip_config.ipv4_options,
1463 IPOPT_REQ_VID_EN, pval);
1464
1465 len = sprintf(buf, "%s\n", pval);
1466 break;
1467 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN:
1468 OP_STATE(ha->ip_config.ipv4_options,
1469 IPOPT_USE_VID_EN, pval);
1470
1471 len = sprintf(buf, "%s\n", pval);
1472 break;
1473 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID:
1474 pval = (ha->ip_config.ipv4_vid_len) ?
1475 (char *)ha->ip_config.ipv4_vid : "";
1476
1477 len = sprintf(buf, "%s\n", pval);
1478 break;
1479 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN:
1480 OP_STATE(ha->ip_config.ipv4_options,
1481 IPOPT_LEARN_IQN_EN, pval);
1482
1483 len = sprintf(buf, "%s\n", pval);
1484 break;
1485 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE:
1486 OP_STATE(~ha->ip_config.ipv4_options,
1487 IPOPT_FRAGMENTATION_DISABLE, pval);
1488
1489 len = sprintf(buf, "%s\n", pval);
1490 break;
1491 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN:
1492 OP_STATE(ha->ip_config.ipv4_options,
1493 IPOPT_IN_FORWARD_EN, pval);
1494
1495 len = sprintf(buf, "%s\n", pval);
1496 break;
1497 case ISCSI_NET_PARAM_REDIRECT_EN:
1498 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1499 OP_STATE(ha->ip_config.ipv4_options,
1500 IPOPT_ARP_REDIRECT_EN, pval);
1501 } else {
1502 OP_STATE(ha->ip_config.ipv6_options,
1503 IPV6_OPT_REDIRECT_EN, pval);
1504 }
1505 len = sprintf(buf, "%s\n", pval);
1506 break;
1507 case ISCSI_NET_PARAM_IPV4_TTL:
1508 len = sprintf(buf, "%d\n", ha->ip_config.ipv4_ttl);
1509 break;
1510 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN:
1511 OP_STATE(ha->ip_config.ipv6_options,
1512 IPV6_OPT_GRAT_NEIGHBOR_ADV_EN, pval);
1513
1514 len = sprintf(buf, "%s\n", pval);
1515 break;
1516 case ISCSI_NET_PARAM_IPV6_MLD_EN:
1517 OP_STATE(ha->ip_config.ipv6_addl_options,
1518 IPV6_ADDOPT_MLD_EN, pval);
1519
1520 len = sprintf(buf, "%s\n", pval);
1521 break;
1522 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL:
1523 len = sprintf(buf, "%u\n", ha->ip_config.ipv6_flow_lbl);
1524 break;
1525 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS:
6ac73e8c 1526 len = sprintf(buf, "%d\n",
f8e93412
HZ		 1527 ha->ip_config.ipv6_traffic_class);
1528 break;
1529 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT:
6ac73e8c 1530 len = sprintf(buf, "%d\n",
f8e93412
HZ		 1531 ha->ip_config.ipv6_hop_limit);
1532 break;
1533 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO:
6ac73e8c 1534 len = sprintf(buf, "%d\n",
f8e93412
HZ		 1535 ha->ip_config.ipv6_nd_reach_time);
1536 break;
1537 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME:
6ac73e8c 1538 len = sprintf(buf, "%d\n",
f8e93412
HZ		 1539 ha->ip_config.ipv6_nd_rexmit_timer);
1540 break;
1541 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO:
1542 len = sprintf(buf, "%d\n",
1543 ha->ip_config.ipv6_nd_stale_timeout);
1544 break;
1545 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT:
1546 len = sprintf(buf, "%d\n",
1547 ha->ip_config.ipv6_dup_addr_detect_count);
1548 break;
1549 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU:
1550 len = sprintf(buf, "%d\n",
1551 ha->ip_config.ipv6_gw_advrt_mtu);
1552 break;
1553 default:
1554 len = -ENOSYS;
1555 }
1556 } else if (param_type == ISCSI_IFACE_PARAM) {
1557 switch (param) {
1558 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO:
1559 len = sprintf(buf, "%d\n", ha->ip_config.def_timeout);
1560 break;
1561 case ISCSI_IFACE_PARAM_HDRDGST_EN:
1562 OP_STATE(ha->ip_config.iscsi_options,
1563 ISCSIOPTS_HEADER_DIGEST_EN, pval);
1564
1565 len = sprintf(buf, "%s\n", pval);
1566 break;
1567 case ISCSI_IFACE_PARAM_DATADGST_EN:
1568 OP_STATE(ha->ip_config.iscsi_options,
1569 ISCSIOPTS_DATA_DIGEST_EN, pval);
1570
1571 len = sprintf(buf, "%s\n", pval);
1572 break;
1573 case ISCSI_IFACE_PARAM_IMM_DATA_EN:
1574 OP_STATE(ha->ip_config.iscsi_options,
1575 ISCSIOPTS_IMMEDIATE_DATA_EN, pval);
1576
1577 len = sprintf(buf, "%s\n", pval);
1578 break;
1579 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN:
1580 OP_STATE(ha->ip_config.iscsi_options,
1581 ISCSIOPTS_INITIAL_R2T_EN, pval);
1582
1583 len = sprintf(buf, "%s\n", pval);
1584 break;
1585 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN:
1586 OP_STATE(ha->ip_config.iscsi_options,
1587 ISCSIOPTS_DATA_SEQ_INORDER_EN, pval);
1588
1589 len = sprintf(buf, "%s\n", pval);
1590 break;
1591 case ISCSI_IFACE_PARAM_PDU_INORDER_EN:
1592 OP_STATE(ha->ip_config.iscsi_options,
1593 ISCSIOPTS_DATA_PDU_INORDER_EN, pval);
1594
1595 len = sprintf(buf, "%s\n", pval);
1596 break;
1597 case ISCSI_IFACE_PARAM_ERL:
1598 len = sprintf(buf, "%d\n",
1599 (ha->ip_config.iscsi_options &
1600 ISCSIOPTS_ERL));
1601 break;
1602 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH:
1603 len = sprintf(buf, "%u\n",
1604 ha->ip_config.iscsi_max_pdu_size *
1605 BYTE_UNITS);
1606 break;
1607 case ISCSI_IFACE_PARAM_FIRST_BURST:
1608 len = sprintf(buf, "%u\n",
1609 ha->ip_config.iscsi_first_burst_len *
1610 BYTE_UNITS);
1611 break;
1612 case ISCSI_IFACE_PARAM_MAX_R2T:
1613 len = sprintf(buf, "%d\n",
1614 ha->ip_config.iscsi_max_outstnd_r2t);
1615 break;
1616 case ISCSI_IFACE_PARAM_MAX_BURST:
1617 len = sprintf(buf, "%u\n",
1618 ha->ip_config.iscsi_max_burst_len *
1619 BYTE_UNITS);
1620 break;
1621 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN:
1622 OP_STATE(ha->ip_config.iscsi_options,
1623 ISCSIOPTS_CHAP_AUTH_EN, pval);
1624
1625 len = sprintf(buf, "%s\n", pval);
1626 break;
1627 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN:
1628 OP_STATE(ha->ip_config.iscsi_options,
1629 ISCSIOPTS_BIDI_CHAP_EN, pval);
1630
1631 len = sprintf(buf, "%s\n", pval);
1632 break;
1633 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL:
1634 OP_STATE(ha->ip_config.iscsi_options,
1635 ISCSIOPTS_DISCOVERY_AUTH_EN, pval);
1636
1637 len = sprintf(buf, "%s\n", pval);
1638 break;
1639 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN:
1640 OP_STATE(ha->ip_config.iscsi_options,
1641 ISCSIOPTS_DISCOVERY_LOGOUT_EN, pval);
1642
1643 len = sprintf(buf, "%s\n", pval);
1644 break;
1645 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN:
1646 OP_STATE(ha->ip_config.iscsi_options,
1647 ISCSIOPTS_STRICT_LOGIN_COMP_EN, pval);
1648
1649 len = sprintf(buf, "%s\n", pval);
1650 break;
1651 case ISCSI_IFACE_PARAM_INITIATOR_NAME:
1652 len = sprintf(buf, "%s\n", ha->ip_config.iscsi_name);
1653 break;
1654 default:
1655 len = -ENOSYS;
1656 }
ed1086e0
VC		 1657 }
1658
1659 return len;
1660}
1661
b3a271a9
MR		 1662static struct iscsi_endpoint *
1663qla4xxx_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr,
1664 int non_blocking)
5c656af7 1665{
b3a271a9
MR		 1666 int ret;
1667 struct iscsi_endpoint *ep;
1668 struct qla_endpoint *qla_ep;
1669 struct scsi_qla_host *ha;
1670 struct sockaddr_in *addr;
1671 struct sockaddr_in6 *addr6;
5c656af7 1672
b3a271a9
MR		 1673 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
1674 if (!shost) {
1675 ret = -ENXIO;
1676 printk(KERN_ERR "%s: shost is NULL\n",
1677 __func__);
1678 return ERR_PTR(ret);
1679 }
5c656af7 1680
b3a271a9
MR		 1681 ha = iscsi_host_priv(shost);
1682
1683 ep = iscsi_create_endpoint(sizeof(struct qla_endpoint));
1684 if (!ep) {
1685 ret = -ENOMEM;
1686 return ERR_PTR(ret);
1687 }
1688
1689 qla_ep = ep->dd_data;
1690 memset(qla_ep, 0, sizeof(struct qla_endpoint));
1691 if (dst_addr->sa_family == AF_INET) {
1692 memcpy(&qla_ep->dst_addr, dst_addr, sizeof(struct sockaddr_in));
1693 addr = (struct sockaddr_in *)&qla_ep->dst_addr;
1694 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI4\n", __func__,
1695 (char *)&addr->sin_addr));
1696 } else if (dst_addr->sa_family == AF_INET6) {
1697 memcpy(&qla_ep->dst_addr, dst_addr,
1698 sizeof(struct sockaddr_in6));
1699 addr6 = (struct sockaddr_in6 *)&qla_ep->dst_addr;
1700 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI6\n", __func__,
1701 (char *)&addr6->sin6_addr));
1702 }
1703
1704 qla_ep->host = shost;
1705
1706 return ep;
5c656af7
MC		 1707}
1708
b3a271a9 1709static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms)
afaf5a2d 1710{
b3a271a9
MR		 1711 struct qla_endpoint *qla_ep;
1712 struct scsi_qla_host *ha;
1713 int ret = 0;
afaf5a2d 1714
b3a271a9
MR		 1715 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
1716 qla_ep = ep->dd_data;
1717 ha = to_qla_host(qla_ep->host);
1718
13483730 1719 if (adapter_up(ha) && !test_bit(AF_BUILD_DDB_LIST, &ha->flags))
b3a271a9
MR		 1720 ret = 1;
1721
1722 return ret;
1723}
1724
1725static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep)
1726{
1727 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
1728 iscsi_destroy_endpoint(ep);
1729}
1730
1731static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep,
1732 enum iscsi_param param,
1733 char *buf)
1734{
1735 struct qla_endpoint *qla_ep = ep->dd_data;
1736 struct sockaddr *dst_addr;
1737
1738 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
1739
1740 switch (param) {
1741 case ISCSI_PARAM_CONN_PORT:
1742 case ISCSI_PARAM_CONN_ADDRESS:
1743 if (!qla_ep)
1744 return -ENOTCONN;
1745
1746 dst_addr = (struct sockaddr *)&qla_ep->dst_addr;
1747 if (!dst_addr)
1748 return -ENOTCONN;
1749
1750 return iscsi_conn_get_addr_param((struct sockaddr_storage *)
1751 &qla_ep->dst_addr, param, buf);
1752 default:
1753 return -ENOSYS;
1754 }
1755}
1756
1757static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn,
1758 struct iscsi_stats *stats)
1759{
1760 struct iscsi_session *sess;
1761 struct iscsi_cls_session *cls_sess;
1762 struct ddb_entry *ddb_entry;
1763 struct scsi_qla_host *ha;
1764 struct ql_iscsi_stats *ql_iscsi_stats;
1765 int stats_size;
1766 int ret;
1767 dma_addr_t iscsi_stats_dma;
1768
1769 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
568d303b 1770
b3a271a9
MR		 1771 cls_sess = iscsi_conn_to_session(cls_conn);
1772 sess = cls_sess->dd_data;
1773 ddb_entry = sess->dd_data;
1774 ha = ddb_entry->ha;
1775
1776 stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats));
1777 /* Allocate memory */
1778 ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size,
1779 &iscsi_stats_dma, GFP_KERNEL);
1780 if (!ql_iscsi_stats) {
1781 ql4_printk(KERN_ERR, ha,
1782 "Unable to allocate memory for iscsi stats\n");
1783 goto exit_get_stats;
568d303b 1784 }
b3a271a9
MR		 1785
1786 ret = qla4xxx_get_mgmt_data(ha, ddb_entry->fw_ddb_index, stats_size,
1787 iscsi_stats_dma);
1788 if (ret != QLA_SUCCESS) {
1789 ql4_printk(KERN_ERR, ha,
59e13d48 1790 "Unable to retrieve iscsi stats\n");
b3a271a9
MR		 1791 goto free_stats;
1792 }
1793
1794 /* octets */
1795 stats->txdata_octets = le64_to_cpu(ql_iscsi_stats->tx_data_octets);
1796 stats->rxdata_octets = le64_to_cpu(ql_iscsi_stats->rx_data_octets);
1797 /* xmit pdus */
1798 stats->noptx_pdus = le32_to_cpu(ql_iscsi_stats->tx_nopout_pdus);
1799 stats->scsicmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_cmd_pdus);
1800 stats->tmfcmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_tmf_cmd_pdus);
1801 stats->login_pdus = le32_to_cpu(ql_iscsi_stats->tx_login_cmd_pdus);
1802 stats->text_pdus = le32_to_cpu(ql_iscsi_stats->tx_text_cmd_pdus);
1803 stats->dataout_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_write_pdus);
1804 stats->logout_pdus = le32_to_cpu(ql_iscsi_stats->tx_logout_cmd_pdus);
1805 stats->snack_pdus = le32_to_cpu(ql_iscsi_stats->tx_snack_req_pdus);
1806 /* recv pdus */
1807 stats->noprx_pdus = le32_to_cpu(ql_iscsi_stats->rx_nopin_pdus);
1808 stats->scsirsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_resp_pdus);
1809 stats->tmfrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_tmf_resp_pdus);
1810 stats->textrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_text_resp_pdus);
1811 stats->datain_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_read_pdus);
1812 stats->logoutrsp_pdus =
1813 le32_to_cpu(ql_iscsi_stats->rx_logout_resp_pdus);
1814 stats->r2t_pdus = le32_to_cpu(ql_iscsi_stats->rx_r2t_pdus);
1815 stats->async_pdus = le32_to_cpu(ql_iscsi_stats->rx_async_pdus);
1816 stats->rjt_pdus = le32_to_cpu(ql_iscsi_stats->rx_reject_pdus);
1817
1818free_stats:
1819 dma_free_coherent(&ha->pdev->dev, stats_size, ql_iscsi_stats,
1820 iscsi_stats_dma);
1821exit_get_stats:
1822 return;
1823}
1824
1825static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc)
1826{
1827 struct iscsi_cls_session *session;
1828 struct iscsi_session *sess;
1829 unsigned long flags;
1830 enum blk_eh_timer_return ret = BLK_EH_NOT_HANDLED;
1831
1832 session = starget_to_session(scsi_target(sc->device));
1833 sess = session->dd_data;
1834
1835 spin_lock_irqsave(&session->lock, flags);
1836 if (session->state == ISCSI_SESSION_FAILED)
1837 ret = BLK_EH_RESET_TIMER;
1838 spin_unlock_irqrestore(&session->lock, flags);
1839
1840 return ret;
afaf5a2d
DS		 1841}
1842
3254dbe9
VC		 1843static void qla4xxx_set_port_speed(struct Scsi_Host *shost)
1844{
1845 struct scsi_qla_host *ha = to_qla_host(shost);
e16d166e 1846 struct iscsi_cls_host *ihost = shost->shost_data;
3254dbe9
VC		 1847 uint32_t speed = ISCSI_PORT_SPEED_UNKNOWN;
1848
1849 qla4xxx_get_firmware_state(ha);
1850
1851 switch (ha->addl_fw_state & 0x0F00) {
1852 case FW_ADDSTATE_LINK_SPEED_10MBPS:
1853 speed = ISCSI_PORT_SPEED_10MBPS;
1854 break;
1855 case FW_ADDSTATE_LINK_SPEED_100MBPS:
1856 speed = ISCSI_PORT_SPEED_100MBPS;
1857 break;
1858 case FW_ADDSTATE_LINK_SPEED_1GBPS:
1859 speed = ISCSI_PORT_SPEED_1GBPS;
1860 break;
1861 case FW_ADDSTATE_LINK_SPEED_10GBPS:
1862 speed = ISCSI_PORT_SPEED_10GBPS;
1863 break;
1864 }
1865 ihost->port_speed = speed;
1866}
1867
1868static void qla4xxx_set_port_state(struct Scsi_Host *shost)
1869{
1870 struct scsi_qla_host *ha = to_qla_host(shost);
e16d166e 1871 struct iscsi_cls_host *ihost = shost->shost_data;
3254dbe9
VC		 1872 uint32_t state = ISCSI_PORT_STATE_DOWN;
1873
1874 if (test_bit(AF_LINK_UP, &ha->flags))
1875 state = ISCSI_PORT_STATE_UP;
1876
1877 ihost->port_state = state;
1878}
1879
aa1e93a2
MC		 1880static int qla4xxx_host_get_param(struct Scsi_Host *shost,
1881 enum iscsi_host_param param, char *buf)
1882{
1883 struct scsi_qla_host *ha = to_qla_host(shost);
1884 int len;
1885
1886 switch (param) {
1887 case ISCSI_HOST_PARAM_HWADDRESS:
7ffc49a6 1888 len = sysfs_format_mac(buf, ha->my_mac, MAC_ADDR_LEN);
8ad5781a 1889 break;
22236961 1890 case ISCSI_HOST_PARAM_IPADDRESS:
2bab08fc 1891 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address);
22236961 1892 break;
8ad5781a 1893 case ISCSI_HOST_PARAM_INITIATOR_NAME:
22236961 1894 len = sprintf(buf, "%s\n", ha->name_string);
aa1e93a2 1895 break;
3254dbe9
VC		 1896 case ISCSI_HOST_PARAM_PORT_STATE:
1897 qla4xxx_set_port_state(shost);
1898 len = sprintf(buf, "%s\n", iscsi_get_port_state_name(shost));
1899 break;
1900 case ISCSI_HOST_PARAM_PORT_SPEED:
1901 qla4xxx_set_port_speed(shost);
1902 len = sprintf(buf, "%s\n", iscsi_get_port_speed_name(shost));
1903 break;
aa1e93a2
MC		 1904 default:
1905 return -ENOSYS;
1906 }
1907
1908 return len;
1909}
1910
ed1086e0
VC		 1911static void qla4xxx_create_ipv4_iface(struct scsi_qla_host *ha)
1912{
1913 if (ha->iface_ipv4)
1914 return;
1915
1916 /* IPv4 */
1917 ha->iface_ipv4 = iscsi_create_iface(ha->host,
1918 &qla4xxx_iscsi_transport,
1919 ISCSI_IFACE_TYPE_IPV4, 0, 0);
1920 if (!ha->iface_ipv4)
1921 ql4_printk(KERN_ERR, ha, "Could not create IPv4 iSCSI "
1922 "iface0.\n");
1923}
1924
1925static void qla4xxx_create_ipv6_iface(struct scsi_qla_host *ha)
1926{
1927 if (!ha->iface_ipv6_0)
1928 /* IPv6 iface-0 */
1929 ha->iface_ipv6_0 = iscsi_create_iface(ha->host,
1930 &qla4xxx_iscsi_transport,
1931 ISCSI_IFACE_TYPE_IPV6, 0,
1932 0);
1933 if (!ha->iface_ipv6_0)
1934 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI "
1935 "iface0.\n");
1936
1937 if (!ha->iface_ipv6_1)
1938 /* IPv6 iface-1 */
1939 ha->iface_ipv6_1 = iscsi_create_iface(ha->host,
1940 &qla4xxx_iscsi_transport,
1941 ISCSI_IFACE_TYPE_IPV6, 1,
1942 0);
1943 if (!ha->iface_ipv6_1)
1944 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI "
1945 "iface1.\n");
1946}
1947
1948static void qla4xxx_create_ifaces(struct scsi_qla_host *ha)
1949{
1950 if (ha->ip_config.ipv4_options & IPOPT_IPV4_PROTOCOL_ENABLE)
1951 qla4xxx_create_ipv4_iface(ha);
1952
1953 if (ha->ip_config.ipv6_options & IPV6_OPT_IPV6_PROTOCOL_ENABLE)
1954 qla4xxx_create_ipv6_iface(ha);
1955}
1956
1957static void qla4xxx_destroy_ipv4_iface(struct scsi_qla_host *ha)
1958{
1959 if (ha->iface_ipv4) {
1960 iscsi_destroy_iface(ha->iface_ipv4);
1961 ha->iface_ipv4 = NULL;
1962 }
1963}
1964
1965static void qla4xxx_destroy_ipv6_iface(struct scsi_qla_host *ha)
1966{
1967 if (ha->iface_ipv6_0) {
1968 iscsi_destroy_iface(ha->iface_ipv6_0);
1969 ha->iface_ipv6_0 = NULL;
1970 }
1971 if (ha->iface_ipv6_1) {
1972 iscsi_destroy_iface(ha->iface_ipv6_1);
1973 ha->iface_ipv6_1 = NULL;
1974 }
1975}
1976
1977static void qla4xxx_destroy_ifaces(struct scsi_qla_host *ha)
1978{
1979 qla4xxx_destroy_ipv4_iface(ha);
1980 qla4xxx_destroy_ipv6_iface(ha);
1981}
1982
d00efe3f
MC		 1983static void qla4xxx_set_ipv6(struct scsi_qla_host *ha,
1984 struct iscsi_iface_param_info *iface_param,
1985 struct addr_ctrl_blk *init_fw_cb)
1986{
1987 /*
1988 * iface_num 0 is valid for IPv6 Addr, linklocal, router, autocfg.
1989 * iface_num 1 is valid only for IPv6 Addr.
1990 */
1991 switch (iface_param->param) {
1992 case ISCSI_NET_PARAM_IPV6_ADDR:
1993 if (iface_param->iface_num & 0x1)
1994 /* IPv6 Addr 1 */
1995 memcpy(init_fw_cb->ipv6_addr1, iface_param->value,
1996 sizeof(init_fw_cb->ipv6_addr1));
1997 else
1998 /* IPv6 Addr 0 */
1999 memcpy(init_fw_cb->ipv6_addr0, iface_param->value,
2000 sizeof(init_fw_cb->ipv6_addr0));
2001 break;
2002 case ISCSI_NET_PARAM_IPV6_LINKLOCAL:
2003 if (iface_param->iface_num & 0x1)
2004 break;
2005 memcpy(init_fw_cb->ipv6_if_id, &iface_param->value[8],
2006 sizeof(init_fw_cb->ipv6_if_id));
2007 break;
2008 case ISCSI_NET_PARAM_IPV6_ROUTER:
2009 if (iface_param->iface_num & 0x1)
2010 break;
2011 memcpy(init_fw_cb->ipv6_dflt_rtr_addr, iface_param->value,
2012 sizeof(init_fw_cb->ipv6_dflt_rtr_addr));
2013 break;
2014 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG:
2015 /* Autocfg applies to even interface */
2016 if (iface_param->iface_num & 0x1)
2017 break;
2018
2019 if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_DISABLE)
2020 init_fw_cb->ipv6_addtl_opts &=
2021 cpu_to_le16(
2022 ~IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE);
2023 else if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_ND_ENABLE)
2024 init_fw_cb->ipv6_addtl_opts |=
2025 cpu_to_le16(
2026 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE);
2027 else
f8e93412
HZ		 2028 ql4_printk(KERN_ERR, ha,
2029 "Invalid autocfg setting for IPv6 addr\n");
d00efe3f
MC		 2030 break;
2031 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG:
2032 /* Autocfg applies to even interface */
2033 if (iface_param->iface_num & 0x1)
2034 break;
2035
2036 if (iface_param->value[0] ==
2037 ISCSI_IPV6_LINKLOCAL_AUTOCFG_ENABLE)
2038 init_fw_cb->ipv6_addtl_opts |= cpu_to_le16(
2039 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR);
2040 else if (iface_param->value[0] ==
2041 ISCSI_IPV6_LINKLOCAL_AUTOCFG_DISABLE)
2042 init_fw_cb->ipv6_addtl_opts &= cpu_to_le16(
2043 ~IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR);
2044 else
f8e93412
HZ		 2045 ql4_printk(KERN_ERR, ha,
2046 "Invalid autocfg setting for IPv6 linklocal addr\n");
d00efe3f
MC		 2047 break;
2048 case ISCSI_NET_PARAM_IPV6_ROUTER_AUTOCFG:
2049 /* Autocfg applies to even interface */
2050 if (iface_param->iface_num & 0x1)
2051 break;
2052
2053 if (iface_param->value[0] == ISCSI_IPV6_ROUTER_AUTOCFG_ENABLE)
2054 memset(init_fw_cb->ipv6_dflt_rtr_addr, 0,
2055 sizeof(init_fw_cb->ipv6_dflt_rtr_addr));
2056 break;
2057 case ISCSI_NET_PARAM_IFACE_ENABLE:
ed1086e0 2058 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) {
d00efe3f
MC		 2059 init_fw_cb->ipv6_opts |=
2060 cpu_to_le16(IPV6_OPT_IPV6_PROTOCOL_ENABLE);
ed1086e0
VC		 2061 qla4xxx_create_ipv6_iface(ha);
2062 } else {
d00efe3f
MC		 2063 init_fw_cb->ipv6_opts &=
2064 cpu_to_le16(~IPV6_OPT_IPV6_PROTOCOL_ENABLE &
2065 0xFFFF);
ed1086e0
VC		 2066 qla4xxx_destroy_ipv6_iface(ha);
2067 }
d00efe3f 2068 break;
2d63673b 2069 case ISCSI_NET_PARAM_VLAN_TAG:
d00efe3f
MC		 2070 if (iface_param->len != sizeof(init_fw_cb->ipv6_vlan_tag))
2071 break;
6ac73e8c
VC		 2072 init_fw_cb->ipv6_vlan_tag =
2073 cpu_to_be16(*(uint16_t *)iface_param->value);
2074 break;
2075 case ISCSI_NET_PARAM_VLAN_ENABLED:
2076 if (iface_param->value[0] == ISCSI_VLAN_ENABLE)
2077 init_fw_cb->ipv6_opts |=
2078 cpu_to_le16(IPV6_OPT_VLAN_TAGGING_ENABLE);
2079 else
2080 init_fw_cb->ipv6_opts &=
2081 cpu_to_le16(~IPV6_OPT_VLAN_TAGGING_ENABLE);
d00efe3f 2082 break;
943c157b
VC		 2083 case ISCSI_NET_PARAM_MTU:
2084 init_fw_cb->eth_mtu_size =
2085 cpu_to_le16(*(uint16_t *)iface_param->value);
2086 break;
2ada7fc5
VC		 2087 case ISCSI_NET_PARAM_PORT:
2088 /* Autocfg applies to even interface */
2089 if (iface_param->iface_num & 0x1)
2090 break;
2091
2092 init_fw_cb->ipv6_port =
2093 cpu_to_le16(*(uint16_t *)iface_param->value);
2094 break;
f8e93412
HZ		 2095 case ISCSI_NET_PARAM_DELAYED_ACK_EN:
2096 if (iface_param->iface_num & 0x1)
2097 break;
2098 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2099 init_fw_cb->ipv6_tcp_opts |=
2100 cpu_to_le16(IPV6_TCPOPT_DELAYED_ACK_DISABLE);
2101 else
2102 init_fw_cb->ipv6_tcp_opts &=
2103 cpu_to_le16(~IPV6_TCPOPT_DELAYED_ACK_DISABLE);
2104 break;
2105 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE:
2106 if (iface_param->iface_num & 0x1)
2107 break;
2108 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2109 init_fw_cb->ipv6_tcp_opts |=
2110 cpu_to_le16(IPV6_TCPOPT_NAGLE_ALGO_DISABLE);
2111 else
2112 init_fw_cb->ipv6_tcp_opts &=
2113 cpu_to_le16(~IPV6_TCPOPT_NAGLE_ALGO_DISABLE);
2114 break;
2115 case ISCSI_NET_PARAM_TCP_WSF_DISABLE:
2116 if (iface_param->iface_num & 0x1)
2117 break;
2118 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2119 init_fw_cb->ipv6_tcp_opts |=
2120 cpu_to_le16(IPV6_TCPOPT_WINDOW_SCALE_DISABLE);
2121 else
2122 init_fw_cb->ipv6_tcp_opts &=
2123 cpu_to_le16(~IPV6_TCPOPT_WINDOW_SCALE_DISABLE);
2124 break;
2125 case ISCSI_NET_PARAM_TCP_WSF:
2126 if (iface_param->iface_num & 0x1)
2127 break;
2128 init_fw_cb->ipv6_tcp_wsf = iface_param->value[0];
2129 break;
2130 case ISCSI_NET_PARAM_TCP_TIMER_SCALE:
2131 if (iface_param->iface_num & 0x1)
2132 break;
2133 init_fw_cb->ipv6_tcp_opts &=
2134 cpu_to_le16(~IPV6_TCPOPT_TIMER_SCALE);
2135 init_fw_cb->ipv6_tcp_opts |=
2136 cpu_to_le16((iface_param->value[0] << 1) &
2137 IPV6_TCPOPT_TIMER_SCALE);
2138 break;
2139 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN:
2140 if (iface_param->iface_num & 0x1)
2141 break;
2142 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2143 init_fw_cb->ipv6_tcp_opts |=
2144 cpu_to_le16(IPV6_TCPOPT_TIMESTAMP_EN);
2145 else
2146 init_fw_cb->ipv6_tcp_opts &=
2147 cpu_to_le16(~IPV6_TCPOPT_TIMESTAMP_EN);
2148 break;
2149 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN:
2150 if (iface_param->iface_num & 0x1)
2151 break;
2152 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2153 init_fw_cb->ipv6_opts |=
2154 cpu_to_le16(IPV6_OPT_GRAT_NEIGHBOR_ADV_EN);
2155 else
2156 init_fw_cb->ipv6_opts &=
2157 cpu_to_le16(~IPV6_OPT_GRAT_NEIGHBOR_ADV_EN);
2158 break;
2159 case ISCSI_NET_PARAM_REDIRECT_EN:
2160 if (iface_param->iface_num & 0x1)
2161 break;
2162 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2163 init_fw_cb->ipv6_opts |=
2164 cpu_to_le16(IPV6_OPT_REDIRECT_EN);
2165 else
2166 init_fw_cb->ipv6_opts &=
2167 cpu_to_le16(~IPV6_OPT_REDIRECT_EN);
2168 break;
2169 case ISCSI_NET_PARAM_IPV6_MLD_EN:
2170 if (iface_param->iface_num & 0x1)
2171 break;
2172 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2173 init_fw_cb->ipv6_addtl_opts |=
2174 cpu_to_le16(IPV6_ADDOPT_MLD_EN);
2175 else
2176 init_fw_cb->ipv6_addtl_opts &=
2177 cpu_to_le16(~IPV6_ADDOPT_MLD_EN);
2178 break;
2179 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL:
2180 if (iface_param->iface_num & 0x1)
2181 break;
2182 init_fw_cb->ipv6_flow_lbl =
2183 cpu_to_le16(*(uint16_t *)iface_param->value);
2184 break;
2185 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS:
2186 if (iface_param->iface_num & 0x1)
2187 break;
2188 init_fw_cb->ipv6_traffic_class = iface_param->value[0];
2189 break;
2190 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT:
2191 if (iface_param->iface_num & 0x1)
2192 break;
2193 init_fw_cb->ipv6_hop_limit = iface_param->value[0];
2194 break;
2195 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO:
2196 if (iface_param->iface_num & 0x1)
2197 break;
2198 init_fw_cb->ipv6_nd_reach_time =
2199 cpu_to_le32(*(uint32_t *)iface_param->value);
2200 break;
2201 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME:
2202 if (iface_param->iface_num & 0x1)
2203 break;
2204 init_fw_cb->ipv6_nd_rexmit_timer =
2205 cpu_to_le32(*(uint32_t *)iface_param->value);
2206 break;
2207 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO:
2208 if (iface_param->iface_num & 0x1)
2209 break;
2210 init_fw_cb->ipv6_nd_stale_timeout =
2211 cpu_to_le32(*(uint32_t *)iface_param->value);
2212 break;
2213 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT:
2214 if (iface_param->iface_num & 0x1)
2215 break;
2216 init_fw_cb->ipv6_dup_addr_detect_count = iface_param->value[0];
2217 break;
2218 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU:
2219 if (iface_param->iface_num & 0x1)
2220 break;
2221 init_fw_cb->ipv6_gw_advrt_mtu =
2222 cpu_to_le32(*(uint32_t *)iface_param->value);
2223 break;
d00efe3f
MC		 2224 default:
2225 ql4_printk(KERN_ERR, ha, "Unknown IPv6 param = %d\n",
2226 iface_param->param);
2227 break;
2228 }
2229}
2230
2231static void qla4xxx_set_ipv4(struct scsi_qla_host *ha,
2232 struct iscsi_iface_param_info *iface_param,
2233 struct addr_ctrl_blk *init_fw_cb)
2234{
2235 switch (iface_param->param) {
2236 case ISCSI_NET_PARAM_IPV4_ADDR:
2237 memcpy(init_fw_cb->ipv4_addr, iface_param->value,
2238 sizeof(init_fw_cb->ipv4_addr));
2239 break;
2240 case ISCSI_NET_PARAM_IPV4_SUBNET:
2241 memcpy(init_fw_cb->ipv4_subnet, iface_param->value,
2242 sizeof(init_fw_cb->ipv4_subnet));
2243 break;
2244 case ISCSI_NET_PARAM_IPV4_GW:
2245 memcpy(init_fw_cb->ipv4_gw_addr, iface_param->value,
2246 sizeof(init_fw_cb->ipv4_gw_addr));
2247 break;
2248 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
2249 if (iface_param->value[0] == ISCSI_BOOTPROTO_DHCP)
2250 init_fw_cb->ipv4_tcp_opts |=
2251 cpu_to_le16(TCPOPT_DHCP_ENABLE);
2252 else if (iface_param->value[0] == ISCSI_BOOTPROTO_STATIC)
2253 init_fw_cb->ipv4_tcp_opts &=
2254 cpu_to_le16(~TCPOPT_DHCP_ENABLE);
2255 else
2256 ql4_printk(KERN_ERR, ha, "Invalid IPv4 bootproto\n");
2257 break;
2258 case ISCSI_NET_PARAM_IFACE_ENABLE:
ed1086e0 2259 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) {
d00efe3f 2260 init_fw_cb->ipv4_ip_opts |=
2bab08fc 2261 cpu_to_le16(IPOPT_IPV4_PROTOCOL_ENABLE);
ed1086e0
VC		 2262 qla4xxx_create_ipv4_iface(ha);
2263 } else {
d00efe3f 2264 init_fw_cb->ipv4_ip_opts &=
2bab08fc 2265 cpu_to_le16(~IPOPT_IPV4_PROTOCOL_ENABLE &
d00efe3f 2266 0xFFFF);
ed1086e0
VC		 2267 qla4xxx_destroy_ipv4_iface(ha);
2268 }
d00efe3f 2269 break;
2d63673b 2270 case ISCSI_NET_PARAM_VLAN_TAG:
d00efe3f
MC		 2271 if (iface_param->len != sizeof(init_fw_cb->ipv4_vlan_tag))
2272 break;
6ac73e8c
VC		 2273 init_fw_cb->ipv4_vlan_tag =
2274 cpu_to_be16(*(uint16_t *)iface_param->value);
2275 break;
2276 case ISCSI_NET_PARAM_VLAN_ENABLED:
2277 if (iface_param->value[0] == ISCSI_VLAN_ENABLE)
2278 init_fw_cb->ipv4_ip_opts |=
2279 cpu_to_le16(IPOPT_VLAN_TAGGING_ENABLE);
2280 else
2281 init_fw_cb->ipv4_ip_opts &=
2282 cpu_to_le16(~IPOPT_VLAN_TAGGING_ENABLE);
d00efe3f 2283 break;
943c157b
VC		 2284 case ISCSI_NET_PARAM_MTU:
2285 init_fw_cb->eth_mtu_size =
2286 cpu_to_le16(*(uint16_t *)iface_param->value);
2287 break;
2ada7fc5
VC		 2288 case ISCSI_NET_PARAM_PORT:
2289 init_fw_cb->ipv4_port =
2290 cpu_to_le16(*(uint16_t *)iface_param->value);
2291 break;
f8e93412
HZ		 2292 case ISCSI_NET_PARAM_DELAYED_ACK_EN:
2293 if (iface_param->iface_num & 0x1)
2294 break;
2295 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2296 init_fw_cb->ipv4_tcp_opts |=
2297 cpu_to_le16(TCPOPT_DELAYED_ACK_DISABLE);
2298 else
2299 init_fw_cb->ipv4_tcp_opts &=
2300 cpu_to_le16(~TCPOPT_DELAYED_ACK_DISABLE);
2301 break;
2302 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE:
2303 if (iface_param->iface_num & 0x1)
2304 break;
2305 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2306 init_fw_cb->ipv4_tcp_opts |=
2307 cpu_to_le16(TCPOPT_NAGLE_ALGO_DISABLE);
2308 else
2309 init_fw_cb->ipv4_tcp_opts &=
2310 cpu_to_le16(~TCPOPT_NAGLE_ALGO_DISABLE);
2311 break;
2312 case ISCSI_NET_PARAM_TCP_WSF_DISABLE:
2313 if (iface_param->iface_num & 0x1)
2314 break;
2315 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2316 init_fw_cb->ipv4_tcp_opts |=
2317 cpu_to_le16(TCPOPT_WINDOW_SCALE_DISABLE);
2318 else
2319 init_fw_cb->ipv4_tcp_opts &=
2320 cpu_to_le16(~TCPOPT_WINDOW_SCALE_DISABLE);
2321 break;
2322 case ISCSI_NET_PARAM_TCP_WSF:
2323 if (iface_param->iface_num & 0x1)
2324 break;
2325 init_fw_cb->ipv4_tcp_wsf = iface_param->value[0];
2326 break;
2327 case ISCSI_NET_PARAM_TCP_TIMER_SCALE:
2328 if (iface_param->iface_num & 0x1)
2329 break;
2330 init_fw_cb->ipv4_tcp_opts &= cpu_to_le16(~TCPOPT_TIMER_SCALE);
2331 init_fw_cb->ipv4_tcp_opts |=
2332 cpu_to_le16((iface_param->value[0] << 1) &
2333 TCPOPT_TIMER_SCALE);
2334 break;
2335 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN:
2336 if (iface_param->iface_num & 0x1)
2337 break;
2338 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2339 init_fw_cb->ipv4_tcp_opts |=
2340 cpu_to_le16(TCPOPT_TIMESTAMP_ENABLE);
2341 else
2342 init_fw_cb->ipv4_tcp_opts &=
2343 cpu_to_le16(~TCPOPT_TIMESTAMP_ENABLE);
2344 break;
2345 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN:
2346 if (iface_param->iface_num & 0x1)
2347 break;
2348 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2349 init_fw_cb->ipv4_tcp_opts |=
2350 cpu_to_le16(TCPOPT_DNS_SERVER_IP_EN);
2351 else
2352 init_fw_cb->ipv4_tcp_opts &=
2353 cpu_to_le16(~TCPOPT_DNS_SERVER_IP_EN);
2354 break;
2355 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN:
2356 if (iface_param->iface_num & 0x1)
2357 break;
2358 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2359 init_fw_cb->ipv4_tcp_opts |=
2360 cpu_to_le16(TCPOPT_SLP_DA_INFO_EN);
2361 else
2362 init_fw_cb->ipv4_tcp_opts &=
2363 cpu_to_le16(~TCPOPT_SLP_DA_INFO_EN);
2364 break;
2365 case ISCSI_NET_PARAM_IPV4_TOS_EN:
2366 if (iface_param->iface_num & 0x1)
2367 break;
2368 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2369 init_fw_cb->ipv4_ip_opts |=
2370 cpu_to_le16(IPOPT_IPV4_TOS_EN);
2371 else
2372 init_fw_cb->ipv4_ip_opts &=
2373 cpu_to_le16(~IPOPT_IPV4_TOS_EN);
2374 break;
2375 case ISCSI_NET_PARAM_IPV4_TOS:
2376 if (iface_param->iface_num & 0x1)
2377 break;
2378 init_fw_cb->ipv4_tos = iface_param->value[0];
2379 break;
2380 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN:
2381 if (iface_param->iface_num & 0x1)
2382 break;
2383 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2384 init_fw_cb->ipv4_ip_opts |=
2385 cpu_to_le16(IPOPT_GRAT_ARP_EN);
2386 else
2387 init_fw_cb->ipv4_ip_opts &=
2388 cpu_to_le16(~IPOPT_GRAT_ARP_EN);
2389 break;
2390 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN:
2391 if (iface_param->iface_num & 0x1)
2392 break;
2393 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2394 init_fw_cb->ipv4_ip_opts |=
2395 cpu_to_le16(IPOPT_ALT_CID_EN);
2396 else
2397 init_fw_cb->ipv4_ip_opts &=
2398 cpu_to_le16(~IPOPT_ALT_CID_EN);
2399 break;
2400 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID:
2401 if (iface_param->iface_num & 0x1)
2402 break;
2403 memcpy(init_fw_cb->ipv4_dhcp_alt_cid, iface_param->value,
2404 (sizeof(init_fw_cb->ipv4_dhcp_alt_cid) - 1));
2405 init_fw_cb->ipv4_dhcp_alt_cid_len =
2406 strlen(init_fw_cb->ipv4_dhcp_alt_cid);
2407 break;
2408 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN:
2409 if (iface_param->iface_num & 0x1)
2410 break;
2411 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2412 init_fw_cb->ipv4_ip_opts |=
2413 cpu_to_le16(IPOPT_REQ_VID_EN);
2414 else
2415 init_fw_cb->ipv4_ip_opts &=
2416 cpu_to_le16(~IPOPT_REQ_VID_EN);
2417 break;
2418 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN:
2419 if (iface_param->iface_num & 0x1)
2420 break;
2421 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2422 init_fw_cb->ipv4_ip_opts |=
2423 cpu_to_le16(IPOPT_USE_VID_EN);
2424 else
2425 init_fw_cb->ipv4_ip_opts &=
2426 cpu_to_le16(~IPOPT_USE_VID_EN);
2427 break;
2428 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID:
2429 if (iface_param->iface_num & 0x1)
2430 break;
2431 memcpy(init_fw_cb->ipv4_dhcp_vid, iface_param->value,
2432 (sizeof(init_fw_cb->ipv4_dhcp_vid) - 1));
2433 init_fw_cb->ipv4_dhcp_vid_len =
2434 strlen(init_fw_cb->ipv4_dhcp_vid);
2435 break;
2436 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN:
2437 if (iface_param->iface_num & 0x1)
2438 break;
2439 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2440 init_fw_cb->ipv4_ip_opts |=
2441 cpu_to_le16(IPOPT_LEARN_IQN_EN);
2442 else
2443 init_fw_cb->ipv4_ip_opts &=
2444 cpu_to_le16(~IPOPT_LEARN_IQN_EN);
2445 break;
2446 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE:
2447 if (iface_param->iface_num & 0x1)
2448 break;
2449 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2450 init_fw_cb->ipv4_ip_opts |=
2451 cpu_to_le16(IPOPT_FRAGMENTATION_DISABLE);
2452 else
2453 init_fw_cb->ipv4_ip_opts &=
2454 cpu_to_le16(~IPOPT_FRAGMENTATION_DISABLE);
2455 break;
2456 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN:
2457 if (iface_param->iface_num & 0x1)
2458 break;
2459 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2460 init_fw_cb->ipv4_ip_opts |=
2461 cpu_to_le16(IPOPT_IN_FORWARD_EN);
2462 else
2463 init_fw_cb->ipv4_ip_opts &=
2464 cpu_to_le16(~IPOPT_IN_FORWARD_EN);
2465 break;
2466 case ISCSI_NET_PARAM_REDIRECT_EN:
2467 if (iface_param->iface_num & 0x1)
2468 break;
2469 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2470 init_fw_cb->ipv4_ip_opts |=
2471 cpu_to_le16(IPOPT_ARP_REDIRECT_EN);
2472 else
2473 init_fw_cb->ipv4_ip_opts &=
2474 cpu_to_le16(~IPOPT_ARP_REDIRECT_EN);
2475 break;
2476 case ISCSI_NET_PARAM_IPV4_TTL:
2477 if (iface_param->iface_num & 0x1)
2478 break;
2479 init_fw_cb->ipv4_ttl = iface_param->value[0];
2480 break;
d00efe3f
MC		 2481 default:
2482 ql4_printk(KERN_ERR, ha, "Unknown IPv4 param = %d\n",
2483 iface_param->param);
2484 break;
2485 }
2486}
2487
f8e93412
HZ		 2488static void qla4xxx_set_iscsi_param(struct scsi_qla_host *ha,
2489 struct iscsi_iface_param_info *iface_param,
2490 struct addr_ctrl_blk *init_fw_cb)
2491{
2492 switch (iface_param->param) {
2493 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO:
2494 if (iface_param->iface_num & 0x1)
2495 break;
2496 init_fw_cb->def_timeout =
2497 cpu_to_le16(*(uint16_t *)iface_param->value);
2498 break;
2499 case ISCSI_IFACE_PARAM_HDRDGST_EN:
2500 if (iface_param->iface_num & 0x1)
2501 break;
2502 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2503 init_fw_cb->iscsi_opts |=
2504 cpu_to_le16(ISCSIOPTS_HEADER_DIGEST_EN);
2505 else
2506 init_fw_cb->iscsi_opts &=
2507 cpu_to_le16(~ISCSIOPTS_HEADER_DIGEST_EN);
2508 break;
2509 case ISCSI_IFACE_PARAM_DATADGST_EN:
2510 if (iface_param->iface_num & 0x1)
2511 break;
2512 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2513 init_fw_cb->iscsi_opts |=
2514 cpu_to_le16(ISCSIOPTS_DATA_DIGEST_EN);
2515 else
2516 init_fw_cb->iscsi_opts &=
2517 cpu_to_le16(~ISCSIOPTS_DATA_DIGEST_EN);
2518 break;
2519 case ISCSI_IFACE_PARAM_IMM_DATA_EN:
2520 if (iface_param->iface_num & 0x1)
2521 break;
2522 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2523 init_fw_cb->iscsi_opts |=
2524 cpu_to_le16(ISCSIOPTS_IMMEDIATE_DATA_EN);
2525 else
2526 init_fw_cb->iscsi_opts &=
2527 cpu_to_le16(~ISCSIOPTS_IMMEDIATE_DATA_EN);
2528 break;
2529 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN:
2530 if (iface_param->iface_num & 0x1)
2531 break;
2532 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2533 init_fw_cb->iscsi_opts |=
2534 cpu_to_le16(ISCSIOPTS_INITIAL_R2T_EN);
2535 else
2536 init_fw_cb->iscsi_opts &=
2537 cpu_to_le16(~ISCSIOPTS_INITIAL_R2T_EN);
2538 break;
2539 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN:
2540 if (iface_param->iface_num & 0x1)
2541 break;
2542 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2543 init_fw_cb->iscsi_opts |=
2544 cpu_to_le16(ISCSIOPTS_DATA_SEQ_INORDER_EN);
2545 else
2546 init_fw_cb->iscsi_opts &=
2547 cpu_to_le16(~ISCSIOPTS_DATA_SEQ_INORDER_EN);
2548 break;
2549 case ISCSI_IFACE_PARAM_PDU_INORDER_EN:
2550 if (iface_param->iface_num & 0x1)
2551 break;
2552 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2553 init_fw_cb->iscsi_opts |=
2554 cpu_to_le16(ISCSIOPTS_DATA_PDU_INORDER_EN);
2555 else
2556 init_fw_cb->iscsi_opts &=
2557 cpu_to_le16(~ISCSIOPTS_DATA_PDU_INORDER_EN);
2558 break;
2559 case ISCSI_IFACE_PARAM_ERL:
2560 if (iface_param->iface_num & 0x1)
2561 break;
2562 init_fw_cb->iscsi_opts &= cpu_to_le16(~ISCSIOPTS_ERL);
2563 init_fw_cb->iscsi_opts |= cpu_to_le16(iface_param->value[0] &
2564 ISCSIOPTS_ERL);
2565 break;
2566 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH:
2567 if (iface_param->iface_num & 0x1)
2568 break;
2569 init_fw_cb->iscsi_max_pdu_size =
2570 cpu_to_le32(*(uint32_t *)iface_param->value) /
2571 BYTE_UNITS;
2572 break;
2573 case ISCSI_IFACE_PARAM_FIRST_BURST:
2574 if (iface_param->iface_num & 0x1)
2575 break;
2576 init_fw_cb->iscsi_fburst_len =
2577 cpu_to_le32(*(uint32_t *)iface_param->value) /
2578 BYTE_UNITS;
2579 break;
2580 case ISCSI_IFACE_PARAM_MAX_R2T:
2581 if (iface_param->iface_num & 0x1)
2582 break;
2583 init_fw_cb->iscsi_max_outstnd_r2t =
2584 cpu_to_le16(*(uint16_t *)iface_param->value);
2585 break;
2586 case ISCSI_IFACE_PARAM_MAX_BURST:
2587 if (iface_param->iface_num & 0x1)
2588 break;
2589 init_fw_cb->iscsi_max_burst_len =
2590 cpu_to_le32(*(uint32_t *)iface_param->value) /
2591 BYTE_UNITS;
2592 break;
2593 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN:
2594 if (iface_param->iface_num & 0x1)
2595 break;
2596 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2597 init_fw_cb->iscsi_opts |=
2598 cpu_to_le16(ISCSIOPTS_CHAP_AUTH_EN);
2599 else
2600 init_fw_cb->iscsi_opts &=
2601 cpu_to_le16(~ISCSIOPTS_CHAP_AUTH_EN);
2602 break;
2603 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN:
2604 if (iface_param->iface_num & 0x1)
2605 break;
2606 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2607 init_fw_cb->iscsi_opts |=
2608 cpu_to_le16(ISCSIOPTS_BIDI_CHAP_EN);
2609 else
2610 init_fw_cb->iscsi_opts &=
2611 cpu_to_le16(~ISCSIOPTS_BIDI_CHAP_EN);
2612 break;
2613 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL:
2614 if (iface_param->iface_num & 0x1)
2615 break;
2616 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2617 init_fw_cb->iscsi_opts |=
2618 cpu_to_le16(ISCSIOPTS_DISCOVERY_AUTH_EN);
2619 else
2620 init_fw_cb->iscsi_opts &=
2621 cpu_to_le16(~ISCSIOPTS_DISCOVERY_AUTH_EN);
2622 break;
2623 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN:
2624 if (iface_param->iface_num & 0x1)
2625 break;
2626 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2627 init_fw_cb->iscsi_opts |=
2628 cpu_to_le16(ISCSIOPTS_DISCOVERY_LOGOUT_EN);
2629 else
2630 init_fw_cb->iscsi_opts &=
2631 cpu_to_le16(~ISCSIOPTS_DISCOVERY_LOGOUT_EN);
2632 break;
2633 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN:
2634 if (iface_param->iface_num & 0x1)
2635 break;
2636 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2637 init_fw_cb->iscsi_opts |=
2638 cpu_to_le16(ISCSIOPTS_STRICT_LOGIN_COMP_EN);
2639 else
2640 init_fw_cb->iscsi_opts &=
2641 cpu_to_le16(~ISCSIOPTS_STRICT_LOGIN_COMP_EN);
2642 break;
2643 default:
2644 ql4_printk(KERN_ERR, ha, "Unknown iscsi param = %d\n",
2645 iface_param->param);
2646 break;
2647 }
2648}
2649
d00efe3f
MC		 2650static void
2651qla4xxx_initcb_to_acb(struct addr_ctrl_blk *init_fw_cb)
2652{
2653 struct addr_ctrl_blk_def *acb;
2654 acb = (struct addr_ctrl_blk_def *)init_fw_cb;
2655 memset(acb->reserved1, 0, sizeof(acb->reserved1));
2656 memset(acb->reserved2, 0, sizeof(acb->reserved2));
2657 memset(acb->reserved3, 0, sizeof(acb->reserved3));
2658 memset(acb->reserved4, 0, sizeof(acb->reserved4));
2659 memset(acb->reserved5, 0, sizeof(acb->reserved5));
2660 memset(acb->reserved6, 0, sizeof(acb->reserved6));
2661 memset(acb->reserved7, 0, sizeof(acb->reserved7));
2662 memset(acb->reserved8, 0, sizeof(acb->reserved8));
2663 memset(acb->reserved9, 0, sizeof(acb->reserved9));
2664 memset(acb->reserved10, 0, sizeof(acb->reserved10));
2665 memset(acb->reserved11, 0, sizeof(acb->reserved11));
2666 memset(acb->reserved12, 0, sizeof(acb->reserved12));
2667 memset(acb->reserved13, 0, sizeof(acb->reserved13));
2668 memset(acb->reserved14, 0, sizeof(acb->reserved14));
2669 memset(acb->reserved15, 0, sizeof(acb->reserved15));
2670}
2671
2672static int
00c31889 2673qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data, uint32_t len)
d00efe3f
MC		 2674{
2675 struct scsi_qla_host *ha = to_qla_host(shost);
2676 int rval = 0;
2677 struct iscsi_iface_param_info *iface_param = NULL;
2678 struct addr_ctrl_blk *init_fw_cb = NULL;
2679 dma_addr_t init_fw_cb_dma;
2680 uint32_t mbox_cmd[MBOX_REG_COUNT];
2681 uint32_t mbox_sts[MBOX_REG_COUNT];
00c31889
MC		 2682 uint32_t rem = len;
2683 struct nlattr *attr;
d00efe3f
MC		 2684
2685 init_fw_cb = dma_alloc_coherent(&ha->pdev->dev,
2686 sizeof(struct addr_ctrl_blk),
2687 &init_fw_cb_dma, GFP_KERNEL);
2688 if (!init_fw_cb) {
2689 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc init_cb\n",
2690 __func__);
2691 return -ENOMEM;
2692 }
2693
2694 memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk));
2695 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
2696 memset(&mbox_sts, 0, sizeof(mbox_sts));
2697
2698 if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma)) {
2699 ql4_printk(KERN_ERR, ha, "%s: get ifcb failed\n", __func__);
2700 rval = -EIO;
2701 goto exit_init_fw_cb;
2702 }
2703
00c31889
MC		 2704 nla_for_each_attr(attr, data, len, rem) {
2705 iface_param = nla_data(attr);
d00efe3f 2706
f8e93412
HZ		 2707 if (iface_param->param_type == ISCSI_NET_PARAM) {
2708 switch (iface_param->iface_type) {
2709 case ISCSI_IFACE_TYPE_IPV4:
2710 switch (iface_param->iface_num) {
2711 case 0:
2712 qla4xxx_set_ipv4(ha, iface_param,
2713 init_fw_cb);
2714 break;
2715 default:
d00efe3f 2716 /* Cannot have more than one IPv4 interface */
f8e93412
HZ		 2717 ql4_printk(KERN_ERR, ha,
2718 "Invalid IPv4 iface number = %d\n",
2719 iface_param->iface_num);
2720 break;
2721 }
d00efe3f 2722 break;
f8e93412
HZ		 2723 case ISCSI_IFACE_TYPE_IPV6:
2724 switch (iface_param->iface_num) {
2725 case 0:
2726 case 1:
2727 qla4xxx_set_ipv6(ha, iface_param,
2728 init_fw_cb);
2729 break;
2730 default:
2731 /* Cannot have more than two IPv6 interface */
2732 ql4_printk(KERN_ERR, ha,
2733 "Invalid IPv6 iface number = %d\n",
2734 iface_param->iface_num);
2735 break;
2736 }
d00efe3f
MC		 2737 break;
2738 default:
f8e93412
HZ		 2739 ql4_printk(KERN_ERR, ha,
2740 "Invalid iface type\n");
d00efe3f
MC		 2741 break;
2742 }
f8e93412
HZ		 2743 } else if (iface_param->param_type == ISCSI_IFACE_PARAM) {
2744 qla4xxx_set_iscsi_param(ha, iface_param,
2745 init_fw_cb);
2746 } else {
2747 continue;
d00efe3f 2748 }
d00efe3f
MC		 2749 }
2750
2751 init_fw_cb->cookie = cpu_to_le32(0x11BEAD5A);
2752
2753 rval = qla4xxx_set_flash(ha, init_fw_cb_dma, FLASH_SEGMENT_IFCB,
2754 sizeof(struct addr_ctrl_blk),
2755 FLASH_OPT_RMW_COMMIT);
2756 if (rval != QLA_SUCCESS) {
2757 ql4_printk(KERN_ERR, ha, "%s: set flash mbx failed\n",
2758 __func__);
2759 rval = -EIO;
2760 goto exit_init_fw_cb;
2761 }
2762
ce505f9d
VC		 2763 rval = qla4xxx_disable_acb(ha);
2764 if (rval != QLA_SUCCESS) {
2765 ql4_printk(KERN_ERR, ha, "%s: disable acb mbx failed\n",
2766 __func__);
2767 rval = -EIO;
2768 goto exit_init_fw_cb;
2769 }
2770
2771 wait_for_completion_timeout(&ha->disable_acb_comp,
2772 DISABLE_ACB_TOV * HZ);
d00efe3f
MC		 2773
2774 qla4xxx_initcb_to_acb(init_fw_cb);
2775
2776 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma);
2777 if (rval != QLA_SUCCESS) {
2778 ql4_printk(KERN_ERR, ha, "%s: set acb mbx failed\n",
2779 __func__);
2780 rval = -EIO;
2781 goto exit_init_fw_cb;
2782 }
2783
2784 memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk));
2785 qla4xxx_update_local_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb,
2786 init_fw_cb_dma);
2787
2788exit_init_fw_cb:
2789 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk),
2790 init_fw_cb, init_fw_cb_dma);
2791
2792 return rval;
2793}
2794
fca9f04d
MC		 2795static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess,
2796 enum iscsi_param param, char *buf)
2797{
2798 struct iscsi_session *sess = cls_sess->dd_data;
2799 struct ddb_entry *ddb_entry = sess->dd_data;
2800 struct scsi_qla_host *ha = ddb_entry->ha;
97c2730c
AC		 2801 struct iscsi_cls_conn *cls_conn = ddb_entry->conn;
2802 struct ql4_chap_table chap_tbl;
fca9f04d
MC		 2803 int rval, len;
2804 uint16_t idx;
2805
97c2730c 2806 memset(&chap_tbl, 0, sizeof(chap_tbl));
fca9f04d
MC		 2807 switch (param) {
2808 case ISCSI_PARAM_CHAP_IN_IDX:
2809 rval = qla4xxx_get_chap_index(ha, sess->username_in,
2810 sess->password_in, BIDI_CHAP,
2811 &idx);
2812 if (rval)
c7a5e0d0
MR		 2813 len = sprintf(buf, "\n");
2814 else
2815 len = sprintf(buf, "%hu\n", idx);
fca9f04d
MC		 2816 break;
2817 case ISCSI_PARAM_CHAP_OUT_IDX:
97c2730c
AC		 2818 if (ddb_entry->ddb_type == FLASH_DDB) {
2819 if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) {
2820 idx = ddb_entry->chap_tbl_idx;
2821 rval = QLA_SUCCESS;
2822 } else {
2823 rval = QLA_ERROR;
2824 }
2825 } else {
2826 rval = qla4xxx_get_chap_index(ha, sess->username,
2827 sess->password,
2828 LOCAL_CHAP, &idx);
2829 }
fca9f04d 2830 if (rval)
c7a5e0d0
MR		 2831 len = sprintf(buf, "\n");
2832 else
2833 len = sprintf(buf, "%hu\n", idx);
fca9f04d 2834 break;
97c2730c
AC		 2835 case ISCSI_PARAM_USERNAME:
2836 case ISCSI_PARAM_PASSWORD:
2837 /* First, populate session username and password for FLASH DDB,
2838 * if not already done. This happens when session login fails
2839 * for a FLASH DDB.
2840 */
2841 if (ddb_entry->ddb_type == FLASH_DDB &&
2842 ddb_entry->chap_tbl_idx != INVALID_ENTRY &&
2843 !sess->username && !sess->password) {
2844 idx = ddb_entry->chap_tbl_idx;
2845 rval = qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name,
2846 chap_tbl.secret,
2847 idx);
2848 if (!rval) {
2849 iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME,
2850 (char *)chap_tbl.name,
2851 strlen((char *)chap_tbl.name));
2852 iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD,
2853 (char *)chap_tbl.secret,
2854 chap_tbl.secret_len);
2855 }
2856 }
2857 /* allow fall-through */
fca9f04d
MC		 2858 default:
2859 return iscsi_session_get_param(cls_sess, param, buf);
2860 }
2861
2862 return len;
2863}
2864
b3a271a9 2865static int qla4xxx_conn_get_param(struct iscsi_cls_conn *cls_conn,
afaf5a2d
DS		 2866 enum iscsi_param param, char *buf)
2867{
b3a271a9
MR		 2868 struct iscsi_conn *conn;
2869 struct qla_conn *qla_conn;
2870 struct sockaddr *dst_addr;
2871 int len = 0;
afaf5a2d 2872
b3a271a9
MR		 2873 conn = cls_conn->dd_data;
2874 qla_conn = conn->dd_data;
d46bdeb1 2875 dst_addr = (struct sockaddr *)&qla_conn->qla_ep->dst_addr;
afaf5a2d
DS		 2876
2877 switch (param) {
2878 case ISCSI_PARAM_CONN_PORT:
afaf5a2d 2879 case ISCSI_PARAM_CONN_ADDRESS:
b3a271a9
MR		 2880 return iscsi_conn_get_addr_param((struct sockaddr_storage *)
2881 dst_addr, param, buf);
afaf5a2d 2882 default:
b3a271a9 2883 return iscsi_conn_get_param(cls_conn, param, buf);
afaf5a2d
DS		 2884 }
2885
2886 return len;
b3a271a9 2887
afaf5a2d
DS		 2888}
2889
13483730
MC		 2890int qla4xxx_get_ddb_index(struct scsi_qla_host *ha, uint16_t *ddb_index)
2891{
2892 uint32_t mbx_sts = 0;
2893 uint16_t tmp_ddb_index;
2894 int ret;
2895
2896get_ddb_index:
2897 tmp_ddb_index = find_first_zero_bit(ha->ddb_idx_map, MAX_DDB_ENTRIES);
2898
2899 if (tmp_ddb_index >= MAX_DDB_ENTRIES) {
2900 DEBUG2(ql4_printk(KERN_INFO, ha,
2901 "Free DDB index not available\n"));
2902 ret = QLA_ERROR;
2903 goto exit_get_ddb_index;
2904 }
2905
2906 if (test_and_set_bit(tmp_ddb_index, ha->ddb_idx_map))
2907 goto get_ddb_index;
2908
2909 DEBUG2(ql4_printk(KERN_INFO, ha,
2910 "Found a free DDB index at %d\n", tmp_ddb_index));
2911 ret = qla4xxx_req_ddb_entry(ha, tmp_ddb_index, &mbx_sts);
2912 if (ret == QLA_ERROR) {
2913 if (mbx_sts == MBOX_STS_COMMAND_ERROR) {
2914 ql4_printk(KERN_INFO, ha,
2915 "DDB index = %d not available trying next\n",
2916 tmp_ddb_index);
2917 goto get_ddb_index;
2918 }
2919 DEBUG2(ql4_printk(KERN_INFO, ha,
2920 "Free FW DDB not available\n"));
2921 }
2922
2923 *ddb_index = tmp_ddb_index;
2924
2925exit_get_ddb_index:
2926 return ret;
2927}
2928
2929static int qla4xxx_match_ipaddress(struct scsi_qla_host *ha,
2930 struct ddb_entry *ddb_entry,
2931 char *existing_ipaddr,
2932 char *user_ipaddr)
2933{
2934 uint8_t dst_ipaddr[IPv6_ADDR_LEN];
2935 char formatted_ipaddr[DDB_IPADDR_LEN];
2936 int status = QLA_SUCCESS, ret = 0;
2937
2938 if (ddb_entry->fw_ddb_entry.options & DDB_OPT_IPV6_DEVICE) {
2939 ret = in6_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr,
2940 '\0', NULL);
2941 if (ret == 0) {
2942 status = QLA_ERROR;
2943 goto out_match;
2944 }
2945 ret = sprintf(formatted_ipaddr, "%pI6", dst_ipaddr);
2946 } else {
2947 ret = in4_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr,
2948 '\0', NULL);
2949 if (ret == 0) {
2950 status = QLA_ERROR;
2951 goto out_match;
2952 }
2953 ret = sprintf(formatted_ipaddr, "%pI4", dst_ipaddr);
2954 }
2955
2956 if (strcmp(existing_ipaddr, formatted_ipaddr))
2957 status = QLA_ERROR;
2958
2959out_match:
2960 return status;
2961}
2962
2963static int qla4xxx_match_fwdb_session(struct scsi_qla_host *ha,
2964 struct iscsi_cls_conn *cls_conn)
2965{
2966 int idx = 0, max_ddbs, rval;
2967 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
2968 struct iscsi_session *sess, *existing_sess;
2969 struct iscsi_conn *conn, *existing_conn;
2970 struct ddb_entry *ddb_entry;
2971
2972 sess = cls_sess->dd_data;
2973 conn = cls_conn->dd_data;
2974
2975 if (sess->targetname == NULL ||
2976 conn->persistent_address == NULL ||
2977 conn->persistent_port == 0)
2978 return QLA_ERROR;
2979
2980 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
2981 MAX_DEV_DB_ENTRIES;
2982
2983 for (idx = 0; idx < max_ddbs; idx++) {
2984 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
2985 if (ddb_entry == NULL)
2986 continue;
2987
2988 if (ddb_entry->ddb_type != FLASH_DDB)
2989 continue;
2990
2991 existing_sess = ddb_entry->sess->dd_data;
2992 existing_conn = ddb_entry->conn->dd_data;
2993
2994 if (existing_sess->targetname == NULL ||
2995 existing_conn->persistent_address == NULL ||
2996 existing_conn->persistent_port == 0)
2997 continue;
2998
2999 DEBUG2(ql4_printk(KERN_INFO, ha,
3000 "IQN = %s User IQN = %s\n",
3001 existing_sess->targetname,
3002 sess->targetname));
3003
3004 DEBUG2(ql4_printk(KERN_INFO, ha,
3005 "IP = %s User IP = %s\n",
3006 existing_conn->persistent_address,
3007 conn->persistent_address));
3008
3009 DEBUG2(ql4_printk(KERN_INFO, ha,
3010 "Port = %d User Port = %d\n",
3011 existing_conn->persistent_port,
3012 conn->persistent_port));
3013
3014 if (strcmp(existing_sess->targetname, sess->targetname))
3015 continue;
3016 rval = qla4xxx_match_ipaddress(ha, ddb_entry,
3017 existing_conn->persistent_address,
3018 conn->persistent_address);
3019 if (rval == QLA_ERROR)
3020 continue;
3021 if (existing_conn->persistent_port != conn->persistent_port)
3022 continue;
3023 break;
3024 }
3025
3026 if (idx == max_ddbs)
3027 return QLA_ERROR;
3028
3029 DEBUG2(ql4_printk(KERN_INFO, ha,
3030 "Match found in fwdb sessions\n"));
3031 return QLA_SUCCESS;
3032}
3033
b3a271a9
MR		 3034static struct iscsi_cls_session *
3035qla4xxx_session_create(struct iscsi_endpoint *ep,
3036 uint16_t cmds_max, uint16_t qdepth,
3037 uint32_t initial_cmdsn)
3038{
3039 struct iscsi_cls_session *cls_sess;
3040 struct scsi_qla_host *ha;
3041 struct qla_endpoint *qla_ep;
3042 struct ddb_entry *ddb_entry;
13483730 3043 uint16_t ddb_index;
b3a271a9
MR		 3044 struct iscsi_session *sess;
3045 struct sockaddr *dst_addr;
3046 int ret;
3047
3048 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
3049 if (!ep) {
3050 printk(KERN_ERR "qla4xxx: missing ep.\n");
3051 return NULL;
3052 }
3053
3054 qla_ep = ep->dd_data;
3055 dst_addr = (struct sockaddr *)&qla_ep->dst_addr;
3056 ha = to_qla_host(qla_ep->host);
736cf369 3057
13483730
MC		 3058 ret = qla4xxx_get_ddb_index(ha, &ddb_index);
3059 if (ret == QLA_ERROR)
b3a271a9 3060 return NULL;
b3a271a9
MR		 3061
3062 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, qla_ep->host,
3063 cmds_max, sizeof(struct ddb_entry),
3064 sizeof(struct ql4_task_data),
3065 initial_cmdsn, ddb_index);
3066 if (!cls_sess)
3067 return NULL;
3068
3069 sess = cls_sess->dd_data;
3070 ddb_entry = sess->dd_data;
3071 ddb_entry->fw_ddb_index = ddb_index;
3072 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE;
3073 ddb_entry->ha = ha;
3074 ddb_entry->sess = cls_sess;
13483730
MC		 3075 ddb_entry->unblock_sess = qla4xxx_unblock_ddb;
3076 ddb_entry->ddb_change = qla4xxx_ddb_change;
de2efea6 3077 clear_bit(DDB_CONN_CLOSE_FAILURE, &ddb_entry->flags);
b3a271a9
MR		 3078 cls_sess->recovery_tmo = ql4xsess_recovery_tmo;
3079 ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry;
3080 ha->tot_ddbs++;
3081
3082 return cls_sess;
3083}
3084
3085static void qla4xxx_session_destroy(struct iscsi_cls_session *cls_sess)
3086{
3087 struct iscsi_session *sess;
3088 struct ddb_entry *ddb_entry;
3089 struct scsi_qla_host *ha;
90599b62
MR		 3090 unsigned long flags, wtime;
3091 struct dev_db_entry *fw_ddb_entry = NULL;
3092 dma_addr_t fw_ddb_entry_dma;
3093 uint32_t ddb_state;
3094 int ret;
b3a271a9
MR		 3095
3096 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
3097 sess = cls_sess->dd_data;
3098 ddb_entry = sess->dd_data;
3099 ha = ddb_entry->ha;
3100
90599b62
MR		 3101 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3102 &fw_ddb_entry_dma, GFP_KERNEL);
3103 if (!fw_ddb_entry) {
3104 ql4_printk(KERN_ERR, ha,
3105 "%s: Unable to allocate dma buffer\n", __func__);
3106 goto destroy_session;
3107 }
3108
3109 wtime = jiffies + (HZ * LOGOUT_TOV);
3110 do {
3111 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
3112 fw_ddb_entry, fw_ddb_entry_dma,
3113 NULL, NULL, &ddb_state, NULL,
3114 NULL, NULL);
3115 if (ret == QLA_ERROR)
3116 goto destroy_session;
3117
3118 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) ||
3119 (ddb_state == DDB_DS_SESSION_FAILED))
3120 goto destroy_session;
3121
3122 schedule_timeout_uninterruptible(HZ);
3123 } while ((time_after(wtime, jiffies)));
3124
3125destroy_session:
736cf369 3126 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
de2efea6
NJ		 3127 if (test_and_clear_bit(DDB_CONN_CLOSE_FAILURE, &ddb_entry->flags))
3128 clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map);
b3a271a9
MR		 3129 spin_lock_irqsave(&ha->hardware_lock, flags);
3130 qla4xxx_free_ddb(ha, ddb_entry);
3131 spin_unlock_irqrestore(&ha->hardware_lock, flags);
90599b62 3132
b3a271a9 3133 iscsi_session_teardown(cls_sess);
90599b62
MR		 3134
3135 if (fw_ddb_entry)
3136 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3137 fw_ddb_entry, fw_ddb_entry_dma);
b3a271a9
MR		 3138}
3139
b3a271a9
MR		 3140static struct iscsi_cls_conn *
3141qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx)
3142{
3143 struct iscsi_cls_conn *cls_conn;
3144 struct iscsi_session *sess;
3145 struct ddb_entry *ddb_entry;
3146
3147 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
3148 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn),
3149 conn_idx);
ff1d0319
MC		 3150 if (!cls_conn)
3151 return NULL;
3152
b3a271a9
MR		 3153 sess = cls_sess->dd_data;
3154 ddb_entry = sess->dd_data;
3155 ddb_entry->conn = cls_conn;
3156
3157 return cls_conn;
3158}
3159
3160static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session,
3161 struct iscsi_cls_conn *cls_conn,
3162 uint64_t transport_fd, int is_leading)
3163{
3164 struct iscsi_conn *conn;
3165 struct qla_conn *qla_conn;
3166 struct iscsi_endpoint *ep;
3167
3168 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
3169
3170 if (iscsi_conn_bind(cls_session, cls_conn, is_leading))
3171 return -EINVAL;
3172 ep = iscsi_lookup_endpoint(transport_fd);
3173 conn = cls_conn->dd_data;
3174 qla_conn = conn->dd_data;
3175 qla_conn->qla_ep = ep->dd_data;
3176 return 0;
3177}
3178
3179static int qla4xxx_conn_start(struct iscsi_cls_conn *cls_conn)
3180{
3181 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
3182 struct iscsi_session *sess;
3183 struct ddb_entry *ddb_entry;
3184 struct scsi_qla_host *ha;
13483730 3185 struct dev_db_entry *fw_ddb_entry = NULL;
b3a271a9 3186 dma_addr_t fw_ddb_entry_dma;
b3a271a9
MR		 3187 uint32_t mbx_sts = 0;
3188 int ret = 0;
3189 int status = QLA_SUCCESS;
3190
3191 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
3192 sess = cls_sess->dd_data;
3193 ddb_entry = sess->dd_data;
3194 ha = ddb_entry->ha;
3195
13483730
MC		 3196 /* Check if we have matching FW DDB, if yes then do not
3197 * login to this target. This could cause target to logout previous
3198 * connection
3199 */
3200 ret = qla4xxx_match_fwdb_session(ha, cls_conn);
3201 if (ret == QLA_SUCCESS) {
3202 ql4_printk(KERN_INFO, ha,
3203 "Session already exist in FW.\n");
3204 ret = -EEXIST;
3205 goto exit_conn_start;
3206 }
3207
b3a271a9
MR		 3208 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3209 &fw_ddb_entry_dma, GFP_KERNEL);
3210 if (!fw_ddb_entry) {
3211 ql4_printk(KERN_ERR, ha,
3212 "%s: Unable to allocate dma buffer\n", __func__);
13483730
MC		 3213 ret = -ENOMEM;
3214 goto exit_conn_start;
b3a271a9
MR		 3215 }
3216
3217 ret = qla4xxx_set_param_ddbentry(ha, ddb_entry, cls_conn, &mbx_sts);
3218 if (ret) {
3219 /* If iscsid is stopped and started then no need to do
3220 * set param again since ddb state will be already
3221 * active and FW does not allow set ddb to an
3222 * active session.
3223 */
3224 if (mbx_sts)
3225 if (ddb_entry->fw_ddb_device_state ==
f922da79 3226 DDB_DS_SESSION_ACTIVE) {
13483730 3227 ddb_entry->unblock_sess(ddb_entry->sess);
b3a271a9 3228 goto exit_set_param;
f922da79 3229 }
b3a271a9
MR		 3230
3231 ql4_printk(KERN_ERR, ha, "%s: Failed set param for index[%d]\n",
3232 __func__, ddb_entry->fw_ddb_index);
3233 goto exit_conn_start;
3234 }
3235
3236 status = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index);
3237 if (status == QLA_ERROR) {
0e7e8501
MR		 3238 ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__,
3239 sess->targetname);
b3a271a9
MR		 3240 ret = -EINVAL;
3241 goto exit_conn_start;
3242 }
3243
98270ab4
MR		 3244 if (ddb_entry->fw_ddb_device_state == DDB_DS_NO_CONNECTION_ACTIVE)
3245 ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS;
3246
3247 DEBUG2(printk(KERN_INFO "%s: DDB state [%d]\n", __func__,
3248 ddb_entry->fw_ddb_device_state));
b3a271a9
MR		 3249
3250exit_set_param:
b3a271a9
MR		 3251 ret = 0;
3252
3253exit_conn_start:
13483730
MC		 3254 if (fw_ddb_entry)
3255 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3256 fw_ddb_entry, fw_ddb_entry_dma);
b3a271a9
MR		 3257 return ret;
3258}
3259
3260static void qla4xxx_conn_destroy(struct iscsi_cls_conn *cls_conn)
3261{
3262 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
3263 struct iscsi_session *sess;
3264 struct scsi_qla_host *ha;
3265 struct ddb_entry *ddb_entry;
3266 int options;
3267
3268 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
3269 sess = cls_sess->dd_data;
3270 ddb_entry = sess->dd_data;
3271 ha = ddb_entry->ha;
3272
3273 options = LOGOUT_OPTION_CLOSE_SESSION;
3274 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR)
3275 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__);
b3a271a9
MR		 3276}
3277
3278static void qla4xxx_task_work(struct work_struct *wdata)
3279{
3280 struct ql4_task_data *task_data;
3281 struct scsi_qla_host *ha;
3282 struct passthru_status *sts;
3283 struct iscsi_task *task;
3284 struct iscsi_hdr *hdr;
3285 uint8_t *data;
3286 uint32_t data_len;
3287 struct iscsi_conn *conn;
3288 int hdr_len;
3289 itt_t itt;
3290
3291 task_data = container_of(wdata, struct ql4_task_data, task_work);
3292 ha = task_data->ha;
3293 task = task_data->task;
3294 sts = &task_data->sts;
3295 hdr_len = sizeof(struct iscsi_hdr);
3296
3297 DEBUG3(printk(KERN_INFO "Status returned\n"));
3298 DEBUG3(qla4xxx_dump_buffer(sts, 64));
3299 DEBUG3(printk(KERN_INFO "Response buffer"));
3300 DEBUG3(qla4xxx_dump_buffer(task_data->resp_buffer, 64));
3301
3302 conn = task->conn;
3303
3304 switch (sts->completionStatus) {
3305 case PASSTHRU_STATUS_COMPLETE:
3306 hdr = (struct iscsi_hdr *)task_data->resp_buffer;
3307 /* Assign back the itt in hdr, until we use the PREASSIGN_TAG */
3308 itt = sts->handle;
3309 hdr->itt = itt;
3310 data = task_data->resp_buffer + hdr_len;
3311 data_len = task_data->resp_len - hdr_len;
3312 iscsi_complete_pdu(conn, hdr, data, data_len);
3313 break;
3314 default:
3315 ql4_printk(KERN_ERR, ha, "Passthru failed status = 0x%x\n",
3316 sts->completionStatus);
3317 break;
3318 }
3319 return;
3320}
3321
3322static int qla4xxx_alloc_pdu(struct iscsi_task *task, uint8_t opcode)
3323{
3324 struct ql4_task_data *task_data;
3325 struct iscsi_session *sess;
3326 struct ddb_entry *ddb_entry;
3327 struct scsi_qla_host *ha;
3328 int hdr_len;
3329
3330 sess = task->conn->session;
3331 ddb_entry = sess->dd_data;
3332 ha = ddb_entry->ha;
3333 task_data = task->dd_data;
3334 memset(task_data, 0, sizeof(struct ql4_task_data));
3335
3336 if (task->sc) {
3337 ql4_printk(KERN_INFO, ha,
3338 "%s: SCSI Commands not implemented\n", __func__);
3339 return -EINVAL;
3340 }
3341
3342 hdr_len = sizeof(struct iscsi_hdr);
3343 task_data->ha = ha;
3344 task_data->task = task;
3345
3346 if (task->data_count) {
3347 task_data->data_dma = dma_map_single(&ha->pdev->dev, task->data,
3348 task->data_count,
3349 PCI_DMA_TODEVICE);
3350 }
3351
3352 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n",
3353 __func__, task->conn->max_recv_dlength, hdr_len));
3354
69ca216e 3355 task_data->resp_len = task->conn->max_recv_dlength + hdr_len;
b3a271a9
MR		 3356 task_data->resp_buffer = dma_alloc_coherent(&ha->pdev->dev,
3357 task_data->resp_len,
3358 &task_data->resp_dma,
3359 GFP_ATOMIC);
3360 if (!task_data->resp_buffer)
3361 goto exit_alloc_pdu;
3362
69ca216e 3363 task_data->req_len = task->data_count + hdr_len;
b3a271a9 3364 task_data->req_buffer = dma_alloc_coherent(&ha->pdev->dev,
69ca216e 3365 task_data->req_len,
b3a271a9
MR		 3366 &task_data->req_dma,
3367 GFP_ATOMIC);
3368 if (!task_data->req_buffer)
3369 goto exit_alloc_pdu;
3370
3371 task->hdr = task_data->req_buffer;
3372
3373 INIT_WORK(&task_data->task_work, qla4xxx_task_work);
3374
3375 return 0;
3376
3377exit_alloc_pdu:
3378 if (task_data->resp_buffer)
3379 dma_free_coherent(&ha->pdev->dev, task_data->resp_len,
3380 task_data->resp_buffer, task_data->resp_dma);
3381
3382 if (task_data->req_buffer)
69ca216e 3383 dma_free_coherent(&ha->pdev->dev, task_data->req_len,
b3a271a9
MR		 3384 task_data->req_buffer, task_data->req_dma);
3385 return -ENOMEM;
3386}
3387
3388static void qla4xxx_task_cleanup(struct iscsi_task *task)
3389{
3390 struct ql4_task_data *task_data;
3391 struct iscsi_session *sess;
3392 struct ddb_entry *ddb_entry;
3393 struct scsi_qla_host *ha;
3394 int hdr_len;
3395
3396 hdr_len = sizeof(struct iscsi_hdr);
3397 sess = task->conn->session;
3398 ddb_entry = sess->dd_data;
3399 ha = ddb_entry->ha;
3400 task_data = task->dd_data;
3401
3402 if (task->data_count) {
3403 dma_unmap_single(&ha->pdev->dev, task_data->data_dma,
3404 task->data_count, PCI_DMA_TODEVICE);
3405 }
3406
3407 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n",
3408 __func__, task->conn->max_recv_dlength, hdr_len));
3409
3410 dma_free_coherent(&ha->pdev->dev, task_data->resp_len,
3411 task_data->resp_buffer, task_data->resp_dma);
69ca216e 3412 dma_free_coherent(&ha->pdev->dev, task_data->req_len,
b3a271a9
MR		 3413 task_data->req_buffer, task_data->req_dma);
3414 return;
3415}
3416
3417static int qla4xxx_task_xmit(struct iscsi_task *task)
3418{
3419 struct scsi_cmnd *sc = task->sc;
3420 struct iscsi_session *sess = task->conn->session;
3421 struct ddb_entry *ddb_entry = sess->dd_data;
3422 struct scsi_qla_host *ha = ddb_entry->ha;
3423
3424 if (!sc)
3425 return qla4xxx_send_passthru0(task);
3426
3427 ql4_printk(KERN_INFO, ha, "%s: scsi cmd xmit not implemented\n",
3428 __func__);
3429 return -ENOSYS;
3430}
3431
1e9e2be3
AC		 3432static int qla4xxx_copy_from_fwddb_param(struct iscsi_bus_flash_session *sess,
3433 struct iscsi_bus_flash_conn *conn,
3434 struct dev_db_entry *fw_ddb_entry)
3435{
3436 unsigned long options = 0;
3437 int rc = 0;
3438
3439 options = le16_to_cpu(fw_ddb_entry->options);
3440 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options);
3441 if (test_bit(OPT_IPV6_DEVICE, &options)) {
c962c18b
AC		 3442 rc = iscsi_switch_str_param(&sess->portal_type,
3443 PORTAL_TYPE_IPV6);
1e9e2be3
AC		 3444 if (rc)
3445 goto exit_copy;
3446 } else {
c962c18b
AC		 3447 rc = iscsi_switch_str_param(&sess->portal_type,
3448 PORTAL_TYPE_IPV4);
1e9e2be3
AC		 3449 if (rc)
3450 goto exit_copy;
3451 }
3452
3453 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE,
3454 &options);
3455 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options);
3456 sess->entry_state = test_bit(OPT_ENTRY_STATE, &options);
3457
3458 options = le16_to_cpu(fw_ddb_entry->iscsi_options);
3459 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options);
3460 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options);
3461 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options);
3462 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options);
3463 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER,
3464 &options);
3465 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options);
3466 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options);
3467 conn->snack_req_en = test_bit(ISCSIOPT_SNACK_REQ_EN, &options);
3468 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN,
3469 &options);
3470 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options);
3471 sess->discovery_auth_optional =
3472 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options);
3473 if (test_bit(ISCSIOPT_ERL1, &options))
3474 sess->erl |= BIT_1;
3475 if (test_bit(ISCSIOPT_ERL0, &options))
3476 sess->erl |= BIT_0;
3477
3478 options = le16_to_cpu(fw_ddb_entry->tcp_options);
3479 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options);
3480 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options);
3481 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options);
3482 if (test_bit(TCPOPT_TIMER_SCALE3, &options))
3483 conn->tcp_timer_scale |= BIT_3;
3484 if (test_bit(TCPOPT_TIMER_SCALE2, &options))
3485 conn->tcp_timer_scale |= BIT_2;
3486 if (test_bit(TCPOPT_TIMER_SCALE1, &options))
3487 conn->tcp_timer_scale |= BIT_1;
3488
3489 conn->tcp_timer_scale >>= 1;
3490 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options);
3491
3492 options = le16_to_cpu(fw_ddb_entry->ip_options);
3493 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options);
3494
3495 conn->max_recv_dlength = BYTE_UNITS *
3496 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len);
3497 conn->max_xmit_dlength = BYTE_UNITS *
3498 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len);
3499 sess->first_burst = BYTE_UNITS *
3500 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len);
3501 sess->max_burst = BYTE_UNITS *
3502 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len);
3503 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t);
3504 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
3505 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain);
3506 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
3507 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss);
3508 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf;
3509 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf;
3510 conn->ipv6_flow_label = le16_to_cpu(fw_ddb_entry->ipv6_flow_lbl);
3511 conn->keepalive_timeout = le16_to_cpu(fw_ddb_entry->ka_timeout);
3512 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port);
3513 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn);
3514 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn);
3515 sess->discovery_parent_idx = le16_to_cpu(fw_ddb_entry->ddb_link);
3516 sess->discovery_parent_type = le16_to_cpu(fw_ddb_entry->ddb_link);
3517 sess->chap_out_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
3518 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid);
3519
3520 sess->default_taskmgmt_timeout =
3521 le16_to_cpu(fw_ddb_entry->def_timeout);
3522 conn->port = le16_to_cpu(fw_ddb_entry->port);
3523
3524 options = le16_to_cpu(fw_ddb_entry->options);
3525 conn->ipaddress = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL);
3526 if (!conn->ipaddress) {
3527 rc = -ENOMEM;
3528 goto exit_copy;
3529 }
3530
3531 conn->redirect_ipaddr = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL);
3532 if (!conn->redirect_ipaddr) {
3533 rc = -ENOMEM;
3534 goto exit_copy;
3535 }
3536
3537 memcpy(conn->ipaddress, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN);
3538 memcpy(conn->redirect_ipaddr, fw_ddb_entry->tgt_addr, IPv6_ADDR_LEN);
3539
3540 if (test_bit(OPT_IPV6_DEVICE, &options)) {
3541 conn->ipv6_traffic_class = fw_ddb_entry->ipv4_tos;
3542
3543 conn->link_local_ipv6_addr = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL);
3544 if (!conn->link_local_ipv6_addr) {
3545 rc = -ENOMEM;
3546 goto exit_copy;
3547 }
3548
3549 memcpy(conn->link_local_ipv6_addr,
3550 fw_ddb_entry->link_local_ipv6_addr, IPv6_ADDR_LEN);
3551 } else {
3552 conn->ipv4_tos = fw_ddb_entry->ipv4_tos;
3553 }
3554
3555 if (fw_ddb_entry->iscsi_name[0]) {
3556 rc = iscsi_switch_str_param(&sess->targetname,
3557 (char *)fw_ddb_entry->iscsi_name);
3558 if (rc)
3559 goto exit_copy;
3560 }
3561
3562 if (fw_ddb_entry->iscsi_alias[0]) {
3563 rc = iscsi_switch_str_param(&sess->targetalias,
3564 (char *)fw_ddb_entry->iscsi_alias);
3565 if (rc)
3566 goto exit_copy;
3567 }
3568
3569 COPY_ISID(sess->isid, fw_ddb_entry->isid);
3570
3571exit_copy:
3572 return rc;
3573}
3574
3575static int qla4xxx_copy_to_fwddb_param(struct iscsi_bus_flash_session *sess,
3576 struct iscsi_bus_flash_conn *conn,
3577 struct dev_db_entry *fw_ddb_entry)
3578{
3579 uint16_t options;
3580 int rc = 0;
3581
3582 options = le16_to_cpu(fw_ddb_entry->options);
3583 SET_BITVAL(conn->is_fw_assigned_ipv6, options, BIT_11);
c962c18b 3584 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4))
1e9e2be3
AC		 3585 options |= BIT_8;
3586 else
3587 options &= ~BIT_8;
3588
3589 SET_BITVAL(sess->auto_snd_tgt_disable, options, BIT_6);
3590 SET_BITVAL(sess->discovery_sess, options, BIT_4);
3591 SET_BITVAL(sess->entry_state, options, BIT_3);
3592 fw_ddb_entry->options = cpu_to_le16(options);
3593
3594 options = le16_to_cpu(fw_ddb_entry->iscsi_options);
3595 SET_BITVAL(conn->hdrdgst_en, options, BIT_13);
3596 SET_BITVAL(conn->datadgst_en, options, BIT_12);
3597 SET_BITVAL(sess->imm_data_en, options, BIT_11);
3598 SET_BITVAL(sess->initial_r2t_en, options, BIT_10);
3599 SET_BITVAL(sess->dataseq_inorder_en, options, BIT_9);
3600 SET_BITVAL(sess->pdu_inorder_en, options, BIT_8);
3601 SET_BITVAL(sess->chap_auth_en, options, BIT_7);
3602 SET_BITVAL(conn->snack_req_en, options, BIT_6);
3603 SET_BITVAL(sess->discovery_logout_en, options, BIT_5);
3604 SET_BITVAL(sess->bidi_chap_en, options, BIT_4);
3605 SET_BITVAL(sess->discovery_auth_optional, options, BIT_3);
3606 SET_BITVAL(sess->erl & BIT_1, options, BIT_1);
3607 SET_BITVAL(sess->erl & BIT_0, options, BIT_0);
3608 fw_ddb_entry->iscsi_options = cpu_to_le16(options);
3609
3610 options = le16_to_cpu(fw_ddb_entry->tcp_options);
3611 SET_BITVAL(conn->tcp_timestamp_stat, options, BIT_6);
3612 SET_BITVAL(conn->tcp_nagle_disable, options, BIT_5);
3613 SET_BITVAL(conn->tcp_wsf_disable, options, BIT_4);
3614 SET_BITVAL(conn->tcp_timer_scale & BIT_2, options, BIT_3);
3615 SET_BITVAL(conn->tcp_timer_scale & BIT_1, options, BIT_2);
3616 SET_BITVAL(conn->tcp_timer_scale & BIT_0, options, BIT_1);
3617 SET_BITVAL(conn->tcp_timestamp_en, options, BIT_0);
3618 fw_ddb_entry->tcp_options = cpu_to_le16(options);
3619
3620 options = le16_to_cpu(fw_ddb_entry->ip_options);
3621 SET_BITVAL(conn->fragment_disable, options, BIT_4);
3622 fw_ddb_entry->ip_options = cpu_to_le16(options);
3623
3624 fw_ddb_entry->iscsi_max_outsnd_r2t = cpu_to_le16(sess->max_r2t);
3625 fw_ddb_entry->iscsi_max_rcv_data_seg_len =
3626 cpu_to_le16(conn->max_recv_dlength / BYTE_UNITS);
3627 fw_ddb_entry->iscsi_max_snd_data_seg_len =
3628 cpu_to_le16(conn->max_xmit_dlength / BYTE_UNITS);
3629 fw_ddb_entry->iscsi_first_burst_len =
3630 cpu_to_le16(sess->first_burst / BYTE_UNITS);
3631 fw_ddb_entry->iscsi_max_burst_len = cpu_to_le16(sess->max_burst /
3632 BYTE_UNITS);
3633 fw_ddb_entry->iscsi_def_time2wait = cpu_to_le16(sess->time2wait);
3634 fw_ddb_entry->iscsi_def_time2retain = cpu_to_le16(sess->time2retain);
3635 fw_ddb_entry->tgt_portal_grp = cpu_to_le16(sess->tpgt);
3636 fw_ddb_entry->mss = cpu_to_le16(conn->max_segment_size);
fbcd4836
AC		 3637 fw_ddb_entry->tcp_xmt_wsf = (uint8_t) cpu_to_le32(conn->tcp_xmit_wsf);
3638 fw_ddb_entry->tcp_rcv_wsf = (uint8_t) cpu_to_le32(conn->tcp_recv_wsf);
1e9e2be3
AC		 3639 fw_ddb_entry->ipv6_flow_lbl = cpu_to_le16(conn->ipv6_flow_label);
3640 fw_ddb_entry->ka_timeout = cpu_to_le16(conn->keepalive_timeout);
3641 fw_ddb_entry->lcl_port = cpu_to_le16(conn->local_port);
fbcd4836
AC		 3642 fw_ddb_entry->stat_sn = cpu_to_le32(conn->statsn);
3643 fw_ddb_entry->exp_stat_sn = cpu_to_le32(conn->exp_statsn);
65560166 3644 fw_ddb_entry->ddb_link = cpu_to_le16(sess->discovery_parent_idx);
1e9e2be3
AC		 3645 fw_ddb_entry->chap_tbl_idx = cpu_to_le16(sess->chap_out_idx);
3646 fw_ddb_entry->tsid = cpu_to_le16(sess->tsid);
3647 fw_ddb_entry->port = cpu_to_le16(conn->port);
3648 fw_ddb_entry->def_timeout =
3649 cpu_to_le16(sess->default_taskmgmt_timeout);
3650
84595802
AC		 3651 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4))
3652 fw_ddb_entry->ipv4_tos = conn->ipv6_traffic_class;
3653 else
3654 fw_ddb_entry->ipv4_tos = conn->ipv4_tos;
3655
1e9e2be3
AC		 3656 if (conn->ipaddress)
3657 memcpy(fw_ddb_entry->ip_addr, conn->ipaddress,
3658 sizeof(fw_ddb_entry->ip_addr));
3659
3660 if (conn->redirect_ipaddr)
3661 memcpy(fw_ddb_entry->tgt_addr, conn->redirect_ipaddr,
3662 sizeof(fw_ddb_entry->tgt_addr));
3663
3664 if (conn->link_local_ipv6_addr)
3665 memcpy(fw_ddb_entry->link_local_ipv6_addr,
3666 conn->link_local_ipv6_addr,
3667 sizeof(fw_ddb_entry->link_local_ipv6_addr));
3668
3669 if (sess->targetname)
3670 memcpy(fw_ddb_entry->iscsi_name, sess->targetname,
3671 sizeof(fw_ddb_entry->iscsi_name));
3672
3673 if (sess->targetalias)
3674 memcpy(fw_ddb_entry->iscsi_alias, sess->targetalias,
3675 sizeof(fw_ddb_entry->iscsi_alias));
3676
3677 COPY_ISID(fw_ddb_entry->isid, sess->isid);
3678
3679 return rc;
3680}
3681
8cc91d42
AC		 3682static void qla4xxx_copy_to_sess_conn_params(struct iscsi_conn *conn,
3683 struct iscsi_session *sess,
3684 struct dev_db_entry *fw_ddb_entry)
3685{
3686 unsigned long options = 0;
3687 uint16_t ddb_link;
3688 uint16_t disc_parent;
fb734ee3 3689 char ip_addr[DDB_IPADDR_LEN];
8cc91d42
AC		 3690
3691 options = le16_to_cpu(fw_ddb_entry->options);
3692 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options);
3693 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE,
3694 &options);
3695 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options);
3696
3697 options = le16_to_cpu(fw_ddb_entry->iscsi_options);
3698 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options);
3699 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options);
3700 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options);
3701 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options);
3702 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER,
3703 &options);
3704 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options);
3705 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options);
3706 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN,
3707 &options);
3708 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options);
3709 sess->discovery_auth_optional =
3710 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options);
3711 if (test_bit(ISCSIOPT_ERL1, &options))
3712 sess->erl |= BIT_1;
3713 if (test_bit(ISCSIOPT_ERL0, &options))
3714 sess->erl |= BIT_0;
3715
3716 options = le16_to_cpu(fw_ddb_entry->tcp_options);
3717 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options);
3718 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options);
3719 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options);
3720 if (test_bit(TCPOPT_TIMER_SCALE3, &options))
3721 conn->tcp_timer_scale |= BIT_3;
3722 if (test_bit(TCPOPT_TIMER_SCALE2, &options))
3723 conn->tcp_timer_scale |= BIT_2;
3724 if (test_bit(TCPOPT_TIMER_SCALE1, &options))
3725 conn->tcp_timer_scale |= BIT_1;
3726
3727 conn->tcp_timer_scale >>= 1;
3728 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options);
3729
3730 options = le16_to_cpu(fw_ddb_entry->ip_options);
3731 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options);
3732
3733 conn->max_recv_dlength = BYTE_UNITS *
3734 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len);
3735 conn->max_xmit_dlength = BYTE_UNITS *
3736 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len);
3737 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t);
3738 sess->first_burst = BYTE_UNITS *
3739 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len);
3740 sess->max_burst = BYTE_UNITS *
3741 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len);
3742 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
3743 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain);
3744 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
3745 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss);
3746 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf;
3747 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf;
3748 conn->ipv4_tos = fw_ddb_entry->ipv4_tos;
3749 conn->keepalive_tmo = le16_to_cpu(fw_ddb_entry->ka_timeout);
3750 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port);
3751 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn);
3752 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn);
3753 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid);
3754 COPY_ISID(sess->isid, fw_ddb_entry->isid);
3755
3756 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
8cc91d42
AC		 3757 if (ddb_link == DDB_ISNS)
3758 disc_parent = ISCSI_DISC_PARENT_ISNS;
3759 else if (ddb_link == DDB_NO_LINK)
3760 disc_parent = ISCSI_DISC_PARENT_UNKNOWN;
3761 else if (ddb_link < MAX_DDB_ENTRIES)
3762 disc_parent = ISCSI_DISC_PARENT_SENDTGT;
3763 else
3764 disc_parent = ISCSI_DISC_PARENT_UNKNOWN;
3765
3766 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_DISCOVERY_PARENT_TYPE,
3767 iscsi_get_discovery_parent_name(disc_parent), 0);
3768
3769 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_TARGET_ALIAS,
3770 (char *)fw_ddb_entry->iscsi_alias, 0);
fb734ee3
AC		 3771
3772 options = le16_to_cpu(fw_ddb_entry->options);
3773 if (options & DDB_OPT_IPV6_DEVICE) {
3774 memset(ip_addr, 0, sizeof(ip_addr));
3775 sprintf(ip_addr, "%pI6", fw_ddb_entry->link_local_ipv6_addr);
3776 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_LOCAL_IPADDR,
3777 (char *)ip_addr, 0);
3778 }
8cc91d42
AC		 3779}
3780
13483730
MC		 3781static void qla4xxx_copy_fwddb_param(struct scsi_qla_host *ha,
3782 struct dev_db_entry *fw_ddb_entry,
3783 struct iscsi_cls_session *cls_sess,
3784 struct iscsi_cls_conn *cls_conn)
3785{
3786 int buflen = 0;
3787 struct iscsi_session *sess;
376738af 3788 struct ddb_entry *ddb_entry;
946ac571 3789 struct ql4_chap_table chap_tbl;
13483730
MC		 3790 struct iscsi_conn *conn;
3791 char ip_addr[DDB_IPADDR_LEN];
3792 uint16_t options = 0;
3793
3794 sess = cls_sess->dd_data;
376738af 3795 ddb_entry = sess->dd_data;
13483730 3796 conn = cls_conn->dd_data;
946ac571 3797 memset(&chap_tbl, 0, sizeof(chap_tbl));
13483730 3798
376738af
NJ		 3799 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
3800
8cc91d42 3801 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry);
13483730 3802
8cc91d42 3803 sess->def_taskmgmt_tmo = le16_to_cpu(fw_ddb_entry->def_timeout);
13483730
MC		 3804 conn->persistent_port = le16_to_cpu(fw_ddb_entry->port);
3805
8cc91d42 3806 memset(ip_addr, 0, sizeof(ip_addr));
13483730 3807 options = le16_to_cpu(fw_ddb_entry->options);
8cc91d42
AC		 3808 if (options & DDB_OPT_IPV6_DEVICE) {
3809 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv6", 4);
3810
3811 memset(ip_addr, 0, sizeof(ip_addr));
13483730 3812 sprintf(ip_addr, "%pI6", fw_ddb_entry->ip_addr);
8cc91d42
AC		 3813 } else {
3814 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv4", 4);
13483730 3815 sprintf(ip_addr, "%pI4", fw_ddb_entry->ip_addr);
8cc91d42 3816 }
13483730 3817
8cc91d42
AC		 3818 iscsi_set_param(cls_conn, ISCSI_PARAM_PERSISTENT_ADDRESS,
3819 (char *)ip_addr, buflen);
13483730
MC		 3820 iscsi_set_param(cls_conn, ISCSI_PARAM_TARGET_NAME,
3821 (char *)fw_ddb_entry->iscsi_name, buflen);
3822 iscsi_set_param(cls_conn, ISCSI_PARAM_INITIATOR_NAME,
3823 (char *)ha->name_string, buflen);
946ac571
AC		 3824
3825 if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) {
3826 if (!qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name,
3827 chap_tbl.secret,
3828 ddb_entry->chap_tbl_idx)) {
3829 iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME,
3830 (char *)chap_tbl.name,
3831 strlen((char *)chap_tbl.name));
3832 iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD,
3833 (char *)chap_tbl.secret,
3834 chap_tbl.secret_len);
3835 }
3836 }
13483730
MC		 3837}
3838
3839void qla4xxx_update_session_conn_fwddb_param(struct scsi_qla_host *ha,
3840 struct ddb_entry *ddb_entry)
3841{
3842 struct iscsi_cls_session *cls_sess;
3843 struct iscsi_cls_conn *cls_conn;
3844 uint32_t ddb_state;
3845 dma_addr_t fw_ddb_entry_dma;
3846 struct dev_db_entry *fw_ddb_entry;
3847
3848 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3849 &fw_ddb_entry_dma, GFP_KERNEL);
3850 if (!fw_ddb_entry) {
3851 ql4_printk(KERN_ERR, ha,
3852 "%s: Unable to allocate dma buffer\n", __func__);
3853 goto exit_session_conn_fwddb_param;
3854 }
3855
3856 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry,
3857 fw_ddb_entry_dma, NULL, NULL, &ddb_state,
3858 NULL, NULL, NULL) == QLA_ERROR) {
3859 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
3860 "get_ddb_entry for fw_ddb_index %d\n",
3861 ha->host_no, __func__,
3862 ddb_entry->fw_ddb_index));
3863 goto exit_session_conn_fwddb_param;
3864 }
3865
3866 cls_sess = ddb_entry->sess;
3867
3868 cls_conn = ddb_entry->conn;
3869
3870 /* Update params */
3871 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn);
3872
3873exit_session_conn_fwddb_param:
3874 if (fw_ddb_entry)
3875 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3876 fw_ddb_entry, fw_ddb_entry_dma);
3877}
3878
b3a271a9
MR		 3879void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha,
3880 struct ddb_entry *ddb_entry)
3881{
3882 struct iscsi_cls_session *cls_sess;
3883 struct iscsi_cls_conn *cls_conn;
3884 struct iscsi_session *sess;
3885 struct iscsi_conn *conn;
3886 uint32_t ddb_state;
3887 dma_addr_t fw_ddb_entry_dma;
3888 struct dev_db_entry *fw_ddb_entry;
3889
3890 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3891 &fw_ddb_entry_dma, GFP_KERNEL);
3892 if (!fw_ddb_entry) {
3893 ql4_printk(KERN_ERR, ha,
3894 "%s: Unable to allocate dma buffer\n", __func__);
13483730 3895 goto exit_session_conn_param;
b3a271a9
MR		 3896 }
3897
3898 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry,
3899 fw_ddb_entry_dma, NULL, NULL, &ddb_state,
3900 NULL, NULL, NULL) == QLA_ERROR) {
3901 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
3902 "get_ddb_entry for fw_ddb_index %d\n",
3903 ha->host_no, __func__,
3904 ddb_entry->fw_ddb_index));
13483730 3905 goto exit_session_conn_param;
b3a271a9
MR		 3906 }
3907
3908 cls_sess = ddb_entry->sess;
3909 sess = cls_sess->dd_data;
3910
3911 cls_conn = ddb_entry->conn;
3912 conn = cls_conn->dd_data;
3913
13483730
MC		 3914 /* Update timers after login */
3915 ddb_entry->default_relogin_timeout =
c28eaaca
NJ		 3916 (le16_to_cpu(fw_ddb_entry->def_timeout) > LOGIN_TOV) &&
3917 (le16_to_cpu(fw_ddb_entry->def_timeout) < LOGIN_TOV * 10) ?
3918 le16_to_cpu(fw_ddb_entry->def_timeout) : LOGIN_TOV;
13483730
MC		 3919 ddb_entry->default_time2wait =
3920 le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
3921
b3a271a9 3922 /* Update params */
376738af 3923 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
8cc91d42 3924 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry);
b3a271a9
MR		 3925
3926 memcpy(sess->initiatorname, ha->name_string,
3927 min(sizeof(ha->name_string), sizeof(sess->initiatorname)));
13483730
MC		 3928
3929exit_session_conn_param:
3930 if (fw_ddb_entry)
3931 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3932 fw_ddb_entry, fw_ddb_entry_dma);
b3a271a9
MR		 3933}
3934
afaf5a2d
DS		 3935/*
3936 * Timer routines
3937 */
3938
3939static void qla4xxx_start_timer(struct scsi_qla_host *ha, void *func,
3940 unsigned long interval)
3941{
3942 DEBUG(printk("scsi: %s: Starting timer thread for adapter %d\n",
3943 __func__, ha->host->host_no));
3944 init_timer(&ha->timer);
3945 ha->timer.expires = jiffies + interval * HZ;
3946 ha->timer.data = (unsigned long)ha;
3947 ha->timer.function = (void (*)(unsigned long))func;
3948 add_timer(&ha->timer);
3949 ha->timer_active = 1;
3950}
3951
3952static void qla4xxx_stop_timer(struct scsi_qla_host *ha)
3953{
3954 del_timer_sync(&ha->timer);
3955 ha->timer_active = 0;
3956}
3957
3958/***
b3a271a9
MR		 3959 * qla4xxx_mark_device_missing - blocks the session
3960 * @cls_session: Pointer to the session to be blocked
afaf5a2d
DS		 3961 * @ddb_entry: Pointer to device database entry
3962 *
f4f5df23 3963 * This routine marks a device missing and close connection.
afaf5a2d 3964 **/
b3a271a9 3965void qla4xxx_mark_device_missing(struct iscsi_cls_session *cls_session)
afaf5a2d 3966{
b3a271a9 3967 iscsi_block_session(cls_session);
afaf5a2d
DS		 3968}
3969
f4f5df23
VC		 3970/**
3971 * qla4xxx_mark_all_devices_missing - mark all devices as missing.
3972 * @ha: Pointer to host adapter structure.
3973 *
3974 * This routine marks a device missing and resets the relogin retry count.
3975 **/
3976void qla4xxx_mark_all_devices_missing(struct scsi_qla_host *ha)
3977{
b3a271a9 3978 iscsi_host_for_each_session(ha->host, qla4xxx_mark_device_missing);
f4f5df23
VC		 3979}
3980
afaf5a2d
DS		 3981static struct srb* qla4xxx_get_new_srb(struct scsi_qla_host *ha,
3982 struct ddb_entry *ddb_entry,
8f0722ca 3983 struct scsi_cmnd *cmd)
afaf5a2d
DS		 3984{
3985 struct srb *srb;
3986
3987 srb = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
3988 if (!srb)
3989 return srb;
3990
09a0f719 3991 kref_init(&srb->srb_ref);
afaf5a2d
DS		 3992 srb->ha = ha;
3993 srb->ddb = ddb_entry;
3994 srb->cmd = cmd;
3995 srb->flags = 0;
5369887a 3996 CMD_SP(cmd) = (void *)srb;
afaf5a2d
DS		 3997
3998 return srb;
3999}
4000
4001static void qla4xxx_srb_free_dma(struct scsi_qla_host *ha, struct srb *srb)
4002{
4003 struct scsi_cmnd *cmd = srb->cmd;
4004
4005 if (srb->flags & SRB_DMA_VALID) {
5f7186c8 4006 scsi_dma_unmap(cmd);
afaf5a2d
DS		 4007 srb->flags &= ~SRB_DMA_VALID;
4008 }
5369887a 4009 CMD_SP(cmd) = NULL;
afaf5a2d
DS		 4010}
4011
09a0f719 4012void qla4xxx_srb_compl(struct kref *ref)
afaf5a2d 4013{
09a0f719 4014 struct srb *srb = container_of(ref, struct srb, srb_ref);
afaf5a2d 4015 struct scsi_cmnd *cmd = srb->cmd;
09a0f719 4016 struct scsi_qla_host *ha = srb->ha;
afaf5a2d
DS		 4017
4018 qla4xxx_srb_free_dma(ha, srb);
4019
4020 mempool_free(srb, ha->srb_mempool);
4021
4022 cmd->scsi_done(cmd);
4023}
4024
4025/**
4026 * qla4xxx_queuecommand - scsi layer issues scsi command to driver.
8f0722ca 4027 * @host: scsi host
afaf5a2d 4028 * @cmd: Pointer to Linux's SCSI command structure
afaf5a2d
DS		 4029 *
4030 * Remarks:
4031 * This routine is invoked by Linux to send a SCSI command to the driver.
4032 * The mid-level driver tries to ensure that queuecommand never gets
4033 * invoked concurrently with itself or the interrupt handler (although
4034 * the interrupt handler may call this routine as part of request-
4035 * completion handling). Unfortunely, it sometimes calls the scheduler
4036 * in interrupt context which is a big NO! NO!.
4037 **/
8f0722ca 4038static int qla4xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
afaf5a2d 4039{
8f0722ca 4040 struct scsi_qla_host *ha = to_qla_host(host);
afaf5a2d 4041 struct ddb_entry *ddb_entry = cmd->device->hostdata;
7fb1921b 4042 struct iscsi_cls_session *sess = ddb_entry->sess;
afaf5a2d
DS		 4043 struct srb *srb;
4044 int rval;
4045
2232be0d
LC		 4046 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
4047 if (test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags))
4048 cmd->result = DID_NO_CONNECT << 16;
4049 else
4050 cmd->result = DID_REQUEUE << 16;
4051 goto qc_fail_command;
4052 }
4053
7fb1921b
MC		 4054 if (!sess) {
4055 cmd->result = DID_IMM_RETRY << 16;
4056 goto qc_fail_command;
4057 }
4058
4059 rval = iscsi_session_chkready(sess);
4060 if (rval) {
4061 cmd->result = rval;
4062 goto qc_fail_command;
4063 }
4064
f4f5df23
VC		 4065 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
4066 test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) ||
4067 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
4068 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) ||
4069 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) ||
4070 !test_bit(AF_ONLINE, &ha->flags) ||
b3a271a9 4071 !test_bit(AF_LINK_UP, &ha->flags) ||
026fbd3a 4072 test_bit(AF_LOOPBACK, &ha->flags) ||
7ab284c9
NJ		 4073 test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags) ||
4074 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags) ||
f4f5df23 4075 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))
477ffb9d
DS		 4076 goto qc_host_busy;
4077
8f0722ca 4078 srb = qla4xxx_get_new_srb(ha, ddb_entry, cmd);
afaf5a2d 4079 if (!srb)
8f0722ca 4080 goto qc_host_busy;
afaf5a2d
DS		 4081
4082 rval = qla4xxx_send_command_to_isp(ha, srb);
4083 if (rval != QLA_SUCCESS)
4084 goto qc_host_busy_free_sp;
4085
afaf5a2d
DS		 4086 return 0;
4087
4088qc_host_busy_free_sp:
4089 qla4xxx_srb_free_dma(ha, srb);
4090 mempool_free(srb, ha->srb_mempool);
4091
afaf5a2d
DS		 4092qc_host_busy:
4093 return SCSI_MLQUEUE_HOST_BUSY;
4094
4095qc_fail_command:
8f0722ca 4096 cmd->scsi_done(cmd);
afaf5a2d
DS		 4097
4098 return 0;
4099}
4100
4101/**
4102 * qla4xxx_mem_free - frees memory allocated to adapter
4103 * @ha: Pointer to host adapter structure.
4104 *
4105 * Frees memory previously allocated by qla4xxx_mem_alloc
4106 **/
4107static void qla4xxx_mem_free(struct scsi_qla_host *ha)
4108{
4109 if (ha->queues)
4110 dma_free_coherent(&ha->pdev->dev, ha->queues_len, ha->queues,
4111 ha->queues_dma);
4112
068237c8
TP		 4113 if (ha->fw_dump)
4114 vfree(ha->fw_dump);
4115
afaf5a2d
DS		 4116 ha->queues_len = 0;
4117 ha->queues = NULL;
4118 ha->queues_dma = 0;
4119 ha->request_ring = NULL;
4120 ha->request_dma = 0;
4121 ha->response_ring = NULL;
4122 ha->response_dma = 0;
4123 ha->shadow_regs = NULL;
4124 ha->shadow_regs_dma = 0;
068237c8
TP		 4125 ha->fw_dump = NULL;
4126 ha->fw_dump_size = 0;
afaf5a2d
DS		 4127
4128 /* Free srb pool. */
4129 if (ha->srb_mempool)
4130 mempool_destroy(ha->srb_mempool);
4131
4132 ha->srb_mempool = NULL;
4133
b3a271a9
MR		 4134 if (ha->chap_dma_pool)
4135 dma_pool_destroy(ha->chap_dma_pool);
4136
4549415a
LC		 4137 if (ha->chap_list)
4138 vfree(ha->chap_list);
4139 ha->chap_list = NULL;
4140
13483730
MC		 4141 if (ha->fw_ddb_dma_pool)
4142 dma_pool_destroy(ha->fw_ddb_dma_pool);
4143
afaf5a2d 4144 /* release io space registers */
f4f5df23
VC		 4145 if (is_qla8022(ha)) {
4146 if (ha->nx_pcibase)
4147 iounmap(
4148 (struct device_reg_82xx __iomem *)ha->nx_pcibase);
b37ca418 4149 } else if (is_qla8032(ha) || is_qla8042(ha)) {
6e7b4292
VC		 4150 if (ha->nx_pcibase)
4151 iounmap(
4152 (struct device_reg_83xx __iomem *)ha->nx_pcibase);
4153 } else if (ha->reg) {
afaf5a2d 4154 iounmap(ha->reg);
6e7b4292
VC		 4155 }
4156
4157 if (ha->reset_tmplt.buff)
4158 vfree(ha->reset_tmplt.buff);
4159
afaf5a2d
DS		 4160 pci_release_regions(ha->pdev);
4161}
4162
4163/**
4164 * qla4xxx_mem_alloc - allocates memory for use by adapter.
4165 * @ha: Pointer to host adapter structure
4166 *
4167 * Allocates DMA memory for request and response queues. Also allocates memory
4168 * for srbs.
4169 **/
4170static int qla4xxx_mem_alloc(struct scsi_qla_host *ha)
4171{
4172 unsigned long align;
4173
4174 /* Allocate contiguous block of DMA memory for queues. */
4175 ha->queues_len = ((REQUEST_QUEUE_DEPTH * QUEUE_SIZE) +
4176 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE) +
4177 sizeof(struct shadow_regs) +
4178 MEM_ALIGN_VALUE +
4179 (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
4180 ha->queues = dma_alloc_coherent(&ha->pdev->dev, ha->queues_len,
4181 &ha->queues_dma, GFP_KERNEL);
4182 if (ha->queues == NULL) {
c2660df3
VC		 4183 ql4_printk(KERN_WARNING, ha,
4184 "Memory Allocation failed - queues.\n");
afaf5a2d
DS		 4185
4186 goto mem_alloc_error_exit;
4187 }
4188 memset(ha->queues, 0, ha->queues_len);
4189
4190 /*
4191 * As per RISC alignment requirements -- the bus-address must be a
4192 * multiple of the request-ring size (in bytes).
4193 */
4194 align = 0;
4195 if ((unsigned long)ha->queues_dma & (MEM_ALIGN_VALUE - 1))
4196 align = MEM_ALIGN_VALUE - ((unsigned long)ha->queues_dma &
4197 (MEM_ALIGN_VALUE - 1));
4198
4199 /* Update request and response queue pointers. */
4200 ha->request_dma = ha->queues_dma + align;
4201 ha->request_ring = (struct queue_entry *) (ha->queues + align);
4202 ha->response_dma = ha->queues_dma + align +
4203 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE);
4204 ha->response_ring = (struct queue_entry *) (ha->queues + align +
4205 (REQUEST_QUEUE_DEPTH *
4206 QUEUE_SIZE));
4207 ha->shadow_regs_dma = ha->queues_dma + align +
4208 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE) +
4209 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE);
4210 ha->shadow_regs = (struct shadow_regs *) (ha->queues + align +
4211 (REQUEST_QUEUE_DEPTH *
4212 QUEUE_SIZE) +
4213 (RESPONSE_QUEUE_DEPTH *
4214 QUEUE_SIZE));
4215
4216 /* Allocate memory for srb pool. */
4217 ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab,
4218 mempool_free_slab, srb_cachep);
4219 if (ha->srb_mempool == NULL) {
c2660df3
VC		 4220 ql4_printk(KERN_WARNING, ha,
4221 "Memory Allocation failed - SRB Pool.\n");
afaf5a2d
DS		 4222
4223 goto mem_alloc_error_exit;
4224 }
4225
b3a271a9
MR		 4226 ha->chap_dma_pool = dma_pool_create("ql4_chap", &ha->pdev->dev,
4227 CHAP_DMA_BLOCK_SIZE, 8, 0);
4228
4229 if (ha->chap_dma_pool == NULL) {
4230 ql4_printk(KERN_WARNING, ha,
4231 "%s: chap_dma_pool allocation failed..\n", __func__);
4232 goto mem_alloc_error_exit;
4233 }
4234
13483730
MC		 4235 ha->fw_ddb_dma_pool = dma_pool_create("ql4_fw_ddb", &ha->pdev->dev,
4236 DDB_DMA_BLOCK_SIZE, 8, 0);
4237
4238 if (ha->fw_ddb_dma_pool == NULL) {
4239 ql4_printk(KERN_WARNING, ha,
4240 "%s: fw_ddb_dma_pool allocation failed..\n",
4241 __func__);
4242 goto mem_alloc_error_exit;
4243 }
4244
afaf5a2d
DS		 4245 return QLA_SUCCESS;
4246
4247mem_alloc_error_exit:
4248 qla4xxx_mem_free(ha);
4249 return QLA_ERROR;
4250}
4251
4f77083e
MH		 4252/**
4253 * qla4_8xxx_check_temp - Check the ISP82XX temperature.
4254 * @ha: adapter block pointer.
4255 *
4256 * Note: The caller should not hold the idc lock.
4257 **/
4258static int qla4_8xxx_check_temp(struct scsi_qla_host *ha)
4259{
4260 uint32_t temp, temp_state, temp_val;
4261 int status = QLA_SUCCESS;
4262
33693c7a 4263 temp = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_TEMP_STATE);
4f77083e
MH		 4264
4265 temp_state = qla82xx_get_temp_state(temp);
4266 temp_val = qla82xx_get_temp_val(temp);
4267
4268 if (temp_state == QLA82XX_TEMP_PANIC) {
4269 ql4_printk(KERN_WARNING, ha, "Device temperature %d degrees C"
4270 " exceeds maximum allowed. Hardware has been shut"
4271 " down.\n", temp_val);
4272 status = QLA_ERROR;
4273 } else if (temp_state == QLA82XX_TEMP_WARN) {
4274 if (ha->temperature == QLA82XX_TEMP_NORMAL)
4275 ql4_printk(KERN_WARNING, ha, "Device temperature %d"
4276 " degrees C exceeds operating range."
4277 " Immediate action needed.\n", temp_val);
4278 } else {
4279 if (ha->temperature == QLA82XX_TEMP_WARN)
4280 ql4_printk(KERN_INFO, ha, "Device temperature is"
4281 " now %d degrees C in normal range.\n",
4282 temp_val);
4283 }
4284 ha->temperature = temp_state;
4285 return status;
4286}
4287
f4f5df23
VC		 4288/**
4289 * qla4_8xxx_check_fw_alive - Check firmware health
4290 * @ha: Pointer to host adapter structure.
4291 *
4292 * Context: Interrupt
4293 **/
9ee91a38 4294static int qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha)
f4f5df23 4295{
9ee91a38
SS		 4296 uint32_t fw_heartbeat_counter;
4297 int status = QLA_SUCCESS;
f4f5df23 4298
33693c7a
VC		 4299 fw_heartbeat_counter = qla4_8xxx_rd_direct(ha,
4300 QLA8XXX_PEG_ALIVE_COUNTER);
2232be0d
LC		 4301 /* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */
4302 if (fw_heartbeat_counter == 0xffffffff) {
4303 DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Device in frozen "
4304 "state, QLA82XX_PEG_ALIVE_COUNTER is 0xffffffff\n",
4305 ha->host_no, __func__));
9ee91a38 4306 return status;
2232be0d 4307 }
f4f5df23
VC		 4308
4309 if (ha->fw_heartbeat_counter == fw_heartbeat_counter) {
4310 ha->seconds_since_last_heartbeat++;
4311 /* FW not alive after 2 seconds */
4312 if (ha->seconds_since_last_heartbeat == 2) {
4313 ha->seconds_since_last_heartbeat = 0;
6e7b4292 4314 qla4_8xxx_dump_peg_reg(ha);
9ee91a38 4315 status = QLA_ERROR;
f4f5df23 4316 }
99457d75
LC		 4317 } else
4318 ha->seconds_since_last_heartbeat = 0;
4319
f4f5df23 4320 ha->fw_heartbeat_counter = fw_heartbeat_counter;
9ee91a38 4321 return status;
f4f5df23
VC		 4322}
4323
6e7b4292
VC		 4324static void qla4_8xxx_process_fw_error(struct scsi_qla_host *ha)
4325{
4326 uint32_t halt_status;
4327 int halt_status_unrecoverable = 0;
4328
4329 halt_status = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_HALT_STATUS1);
4330
4331 if (is_qla8022(ha)) {
4332 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
4333 __func__);
4334 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
4335 CRB_NIU_XG_PAUSE_CTL_P0 |
4336 CRB_NIU_XG_PAUSE_CTL_P1);
4337
4338 if (QLA82XX_FWERROR_CODE(halt_status) == 0x67)
4339 ql4_printk(KERN_ERR, ha, "%s: Firmware aborted with error code 0x00006700. Device is being reset\n",
4340 __func__);
4341 if (halt_status & HALT_STATUS_UNRECOVERABLE)
4342 halt_status_unrecoverable = 1;
b37ca418 4343 } else if (is_qla8032(ha) || is_qla8042(ha)) {
6e7b4292
VC		 4344 if (halt_status & QLA83XX_HALT_STATUS_FW_RESET)
4345 ql4_printk(KERN_ERR, ha, "%s: Firmware error detected device is being reset\n",
4346 __func__);
4347 else if (halt_status & QLA83XX_HALT_STATUS_UNRECOVERABLE)
4348 halt_status_unrecoverable = 1;
4349 }
4350
4351 /*
4352 * Since we cannot change dev_state in interrupt context,
4353 * set appropriate DPC flag then wakeup DPC
4354 */
4355 if (halt_status_unrecoverable) {
4356 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags);
4357 } else {
4358 ql4_printk(KERN_INFO, ha, "%s: detect abort needed!\n",
4359 __func__);
4360 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4361 }
4362 qla4xxx_mailbox_premature_completion(ha);
4363 qla4xxx_wake_dpc(ha);
4364}
4365
f4f5df23
VC		 4366/**
4367 * qla4_8xxx_watchdog - Poll dev state
4368 * @ha: Pointer to host adapter structure.
4369 *
4370 * Context: Interrupt
4371 **/
4372void qla4_8xxx_watchdog(struct scsi_qla_host *ha)
4373{
6e7b4292 4374 uint32_t dev_state;
6cf94121 4375 uint32_t idc_ctrl;
f4f5df23 4376
a083e8bc
VC		 4377 if (is_qla8032(ha) &&
4378 (qla4_83xx_is_detached(ha) == QLA_SUCCESS))
4379 WARN_ONCE(1, "%s: iSCSI function %d marked invisible\n",
4380 __func__, ha->func_num);
4381
f4f5df23 4382 /* don't poll if reset is going on */
d56a1f7b
LC		 4383 if (!(test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) ||
4384 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
977f46a4 4385 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags))) {
33693c7a 4386 dev_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE);
4f77083e
MH		 4387
4388 if (qla4_8xxx_check_temp(ha)) {
6e7b4292
VC		 4389 if (is_qla8022(ha)) {
4390 ql4_printk(KERN_INFO, ha, "disabling pause transmit on port 0 & 1.\n");
4391 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
4392 CRB_NIU_XG_PAUSE_CTL_P0 |
4393 CRB_NIU_XG_PAUSE_CTL_P1);
4394 }
4f77083e
MH		 4395 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags);
4396 qla4xxx_wake_dpc(ha);
de8c72da 4397 } else if (dev_state == QLA8XXX_DEV_NEED_RESET &&
6e7b4292 4398 !test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
6cf94121
VC		 4399
4400 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED RESET!\n",
4401 __func__);
4402
b37ca418 4403 if (is_qla8032(ha) || is_qla8042(ha)) {
6cf94121
VC		 4404 idc_ctrl = qla4_83xx_rd_reg(ha,
4405 QLA83XX_IDC_DRV_CTRL);
4406 if (!(idc_ctrl & GRACEFUL_RESET_BIT1)) {
4407 ql4_printk(KERN_INFO, ha, "%s: Graceful reset bit is not set\n",
4408 __func__);
4409 qla4xxx_mailbox_premature_completion(
4410 ha);
4411 }
4412 }
4413
b37ca418 4414 if ((is_qla8032(ha) || is_qla8042(ha)) ||
6e7b4292 4415 (is_qla8022(ha) && !ql4xdontresethba)) {
3930b8c1
VC		 4416 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4417 qla4xxx_wake_dpc(ha);
3930b8c1 4418 }
de8c72da 4419 } else if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT &&
f4f5df23 4420 !test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) {
3930b8c1
VC		 4421 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED QUIES!\n",
4422 __func__);
f4f5df23
VC		 4423 set_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags);
4424 qla4xxx_wake_dpc(ha);
4425 } else {
4426 /* Check firmware health */
6e7b4292
VC		 4427 if (qla4_8xxx_check_fw_alive(ha))
4428 qla4_8xxx_process_fw_error(ha);
f4f5df23
VC		 4429 }
4430 }
4431}
4432
4a4bc2e9 4433static void qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)
13483730
MC		 4434{
4435 struct iscsi_session *sess;
4436 struct ddb_entry *ddb_entry;
4437 struct scsi_qla_host *ha;
4438
4439 sess = cls_sess->dd_data;
4440 ddb_entry = sess->dd_data;
4441 ha = ddb_entry->ha;
4442
4443 if (!(ddb_entry->ddb_type == FLASH_DDB))
4444 return;
4445
4446 if (adapter_up(ha) && !test_bit(DF_RELOGIN, &ddb_entry->flags) &&
4447 !iscsi_is_session_online(cls_sess)) {
4448 if (atomic_read(&ddb_entry->retry_relogin_timer) !=
4449 INVALID_ENTRY) {
4450 if (atomic_read(&ddb_entry->retry_relogin_timer) ==
4451 0) {
4452 atomic_set(&ddb_entry->retry_relogin_timer,
4453 INVALID_ENTRY);
4454 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
4455 set_bit(DF_RELOGIN, &ddb_entry->flags);
4456 DEBUG2(ql4_printk(KERN_INFO, ha,
4457 "%s: index [%d] login device\n",
4458 __func__, ddb_entry->fw_ddb_index));
4459 } else
4460 atomic_dec(&ddb_entry->retry_relogin_timer);
4461 }
4462 }
4463
4464 /* Wait for relogin to timeout */
4465 if (atomic_read(&ddb_entry->relogin_timer) &&
4466 (atomic_dec_and_test(&ddb_entry->relogin_timer) != 0)) {
4467 /*
4468 * If the relogin times out and the device is
4469 * still NOT ONLINE then try and relogin again.
4470 */
4471 if (!iscsi_is_session_online(cls_sess)) {
4472 /* Reset retry relogin timer */
4473 atomic_inc(&ddb_entry->relogin_retry_count);
4474 DEBUG2(ql4_printk(KERN_INFO, ha,
4475 "%s: index[%d] relogin timed out-retrying"
4476 " relogin (%d), retry (%d)\n", __func__,
4477 ddb_entry->fw_ddb_index,
4478 atomic_read(&ddb_entry->relogin_retry_count),
4479 ddb_entry->default_time2wait + 4));
4480 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
4481 atomic_set(&ddb_entry->retry_relogin_timer,
4482 ddb_entry->default_time2wait + 4);
4483 }
4484 }
4485}
4486
afaf5a2d
DS		 4487/**
4488 * qla4xxx_timer - checks every second for work to do.
4489 * @ha: Pointer to host adapter structure.
4490 **/
4491static void qla4xxx_timer(struct scsi_qla_host *ha)
4492{
afaf5a2d 4493 int start_dpc = 0;
2232be0d
LC		 4494 uint16_t w;
4495
13483730
MC		 4496 iscsi_host_for_each_session(ha->host, qla4xxx_check_relogin_flash_ddb);
4497
2232be0d
LC		 4498 /* If we are in the middle of AER/EEH processing
4499 * skip any processing and reschedule the timer
4500 */
4501 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
4502 mod_timer(&ha->timer, jiffies + HZ);
4503 return;
4504 }
4505
4506 /* Hardware read to trigger an EEH error during mailbox waits. */
4507 if (!pci_channel_offline(ha->pdev))
4508 pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
afaf5a2d 4509
6e7b4292 4510 if (is_qla80XX(ha))
f4f5df23 4511 qla4_8xxx_watchdog(ha);
f4f5df23 4512
ee996a69 4513 if (is_qla40XX(ha)) {
f4f5df23
VC		 4514 /* Check for heartbeat interval. */
4515 if (ha->firmware_options & FWOPT_HEARTBEAT_ENABLE &&
4516 ha->heartbeat_interval != 0) {
4517 ha->seconds_since_last_heartbeat++;
4518 if (ha->seconds_since_last_heartbeat >
4519 ha->heartbeat_interval + 2)
4520 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4521 }
afaf5a2d
DS		 4522 }
4523
ff884430
VC		 4524 /* Process any deferred work. */
4525 if (!list_empty(&ha->work_list))
4526 start_dpc++;
4527
afaf5a2d 4528 /* Wakeup the dpc routine for this adapter, if needed. */
1b46807e 4529 if (start_dpc ||
afaf5a2d
DS		 4530 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
4531 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags) ||
4532 test_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags) ||
f4f5df23 4533 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) ||
afaf5a2d
DS		 4534 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
4535 test_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags) ||
065aa1b4 4536 test_bit(DPC_LINK_CHANGED, &ha->dpc_flags) ||
f4f5df23
VC		 4537 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) ||
4538 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) ||
1b46807e 4539 test_bit(DPC_AEN, &ha->dpc_flags)) {
afaf5a2d
DS		 4540 DEBUG2(printk("scsi%ld: %s: scheduling dpc routine"
4541 " - dpc flags = 0x%lx\n",
4542 ha->host_no, __func__, ha->dpc_flags));
f4f5df23 4543 qla4xxx_wake_dpc(ha);
afaf5a2d
DS		 4544 }
4545
4546 /* Reschedule timer thread to call us back in one second */
4547 mod_timer(&ha->timer, jiffies + HZ);
4548
4549 DEBUG2(ha->seconds_since_last_intr++);
4550}
4551
4552/**
4553 * qla4xxx_cmd_wait - waits for all outstanding commands to complete
4554 * @ha: Pointer to host adapter structure.
4555 *
4556 * This routine stalls the driver until all outstanding commands are returned.
4557 * Caller must release the Hardware Lock prior to calling this routine.
4558 **/
4559static int qla4xxx_cmd_wait(struct scsi_qla_host *ha)
4560{
4561 uint32_t index = 0;
afaf5a2d
DS		 4562 unsigned long flags;
4563 struct scsi_cmnd *cmd;
61d9a2b6
TP		 4564 unsigned long wtime;
4565 uint32_t wtmo;
afaf5a2d 4566
61d9a2b6
TP		 4567 if (is_qla40XX(ha))
4568 wtmo = WAIT_CMD_TOV;
4569 else
4570 wtmo = ha->nx_reset_timeout / 2;
4571
4572 wtime = jiffies + (wtmo * HZ);
f4f5df23 4573
61d9a2b6
TP		 4574 DEBUG2(ql4_printk(KERN_INFO, ha,
4575 "Wait up to %u seconds for cmds to complete\n",
4576 wtmo));
f4f5df23
VC		 4577
4578 while (!time_after_eq(jiffies, wtime)) {
afaf5a2d
DS		 4579 spin_lock_irqsave(&ha->hardware_lock, flags);
4580 /* Find a command that hasn't completed. */
4581 for (index = 0; index < ha->host->can_queue; index++) {
4582 cmd = scsi_host_find_tag(ha->host, index);
a1e0063d
MC		 4583 /*
4584 * We cannot just check if the index is valid,
4585 * becase if we are run from the scsi eh, then
4586 * the scsi/block layer is going to prevent
4587 * the tag from being released.
4588 */
4589 if (cmd != NULL && CMD_SP(cmd))
afaf5a2d
DS		 4590 break;
4591 }
4592 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4593
4594 /* If No Commands are pending, wait is complete */
f4f5df23
VC		 4595 if (index == ha->host->can_queue)
4596 return QLA_SUCCESS;
afaf5a2d 4597
f4f5df23
VC		 4598 msleep(1000);
4599 }
4600 /* If we timed out on waiting for commands to come back
4601 * return ERROR. */
4602 return QLA_ERROR;
afaf5a2d
DS		 4603}
4604
f4f5df23 4605int qla4xxx_hw_reset(struct scsi_qla_host *ha)
afaf5a2d 4606{
afaf5a2d 4607 uint32_t ctrl_status;
477ffb9d
DS		 4608 unsigned long flags = 0;
4609
4610 DEBUG2(printk(KERN_ERR "scsi%ld: %s\n", ha->host_no, __func__));
afaf5a2d 4611
f4f5df23
VC		 4612 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS)
4613 return QLA_ERROR;
4614
afaf5a2d
DS		 4615 spin_lock_irqsave(&ha->hardware_lock, flags);
4616
4617 /*
4618 * If the SCSI Reset Interrupt bit is set, clear it.
4619 * Otherwise, the Soft Reset won't work.
4620 */
4621 ctrl_status = readw(&ha->reg->ctrl_status);
4622 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0)
4623 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status);
4624
4625 /* Issue Soft Reset */
4626 writel(set_rmask(CSR_SOFT_RESET), &ha->reg->ctrl_status);
4627 readl(&ha->reg->ctrl_status);
4628
4629 spin_unlock_irqrestore(&ha->hardware_lock, flags);
f4f5df23 4630 return QLA_SUCCESS;
477ffb9d
DS		 4631}
4632
4633/**
4634 * qla4xxx_soft_reset - performs soft reset.
4635 * @ha: Pointer to host adapter structure.
4636 **/
4637int qla4xxx_soft_reset(struct scsi_qla_host *ha)
4638{
4639 uint32_t max_wait_time;
4640 unsigned long flags = 0;
f931c534 4641 int status;
477ffb9d
DS		 4642 uint32_t ctrl_status;
4643
f931c534
VC		 4644 status = qla4xxx_hw_reset(ha);
4645 if (status != QLA_SUCCESS)
4646 return status;
afaf5a2d 4647
f931c534 4648 status = QLA_ERROR;
afaf5a2d
DS		 4649 /* Wait until the Network Reset Intr bit is cleared */
4650 max_wait_time = RESET_INTR_TOV;
4651 do {
4652 spin_lock_irqsave(&ha->hardware_lock, flags);
4653 ctrl_status = readw(&ha->reg->ctrl_status);
4654 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4655
4656 if ((ctrl_status & CSR_NET_RESET_INTR) == 0)
4657 break;
4658
4659 msleep(1000);
4660 } while ((--max_wait_time));
4661
4662 if ((ctrl_status & CSR_NET_RESET_INTR) != 0) {
4663 DEBUG2(printk(KERN_WARNING
4664 "scsi%ld: Network Reset Intr not cleared by "
4665 "Network function, clearing it now!\n",
4666 ha->host_no));
4667 spin_lock_irqsave(&ha->hardware_lock, flags);
4668 writel(set_rmask(CSR_NET_RESET_INTR), &ha->reg->ctrl_status);
4669 readl(&ha->reg->ctrl_status);
4670 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4671 }
4672
4673 /* Wait until the firmware tells us the Soft Reset is done */
4674 max_wait_time = SOFT_RESET_TOV;
4675 do {
4676 spin_lock_irqsave(&ha->hardware_lock, flags);
4677 ctrl_status = readw(&ha->reg->ctrl_status);
4678 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4679
4680 if ((ctrl_status & CSR_SOFT_RESET) == 0) {
4681 status = QLA_SUCCESS;
4682 break;
4683 }
4684
4685 msleep(1000);
4686 } while ((--max_wait_time));
4687
4688 /*
4689 * Also, make sure that the SCSI Reset Interrupt bit has been cleared
4690 * after the soft reset has taken place.
4691 */
4692 spin_lock_irqsave(&ha->hardware_lock, flags);
4693 ctrl_status = readw(&ha->reg->ctrl_status);
4694 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) {
4695 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status);
4696 readl(&ha->reg->ctrl_status);
4697 }
4698 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4699
4700 /* If soft reset fails then most probably the bios on other
4701 * function is also enabled.
4702 * Since the initialization is sequential the other fn
4703 * wont be able to acknowledge the soft reset.
4704 * Issue a force soft reset to workaround this scenario.
4705 */
4706 if (max_wait_time == 0) {
4707 /* Issue Force Soft Reset */
4708 spin_lock_irqsave(&ha->hardware_lock, flags);
4709 writel(set_rmask(CSR_FORCE_SOFT_RESET), &ha->reg->ctrl_status);
4710 readl(&ha->reg->ctrl_status);
4711 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4712 /* Wait until the firmware tells us the Soft Reset is done */
4713 max_wait_time = SOFT_RESET_TOV;
4714 do {
4715 spin_lock_irqsave(&ha->hardware_lock, flags);
4716 ctrl_status = readw(&ha->reg->ctrl_status);
4717 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4718
4719 if ((ctrl_status & CSR_FORCE_SOFT_RESET) == 0) {
4720 status = QLA_SUCCESS;
4721 break;
4722 }
4723
4724 msleep(1000);
4725 } while ((--max_wait_time));
4726 }
4727
4728 return status;
4729}
4730
afaf5a2d 4731/**
f4f5df23 4732 * qla4xxx_abort_active_cmds - returns all outstanding i/o requests to O.S.
afaf5a2d 4733 * @ha: Pointer to host adapter structure.
f4f5df23 4734 * @res: returned scsi status
afaf5a2d
DS		 4735 *
4736 * This routine is called just prior to a HARD RESET to return all
4737 * outstanding commands back to the Operating System.
4738 * Caller should make sure that the following locks are released
4739 * before this calling routine: Hardware lock, and io_request_lock.
4740 **/
f4f5df23 4741static void qla4xxx_abort_active_cmds(struct scsi_qla_host *ha, int res)
afaf5a2d
DS		 4742{
4743 struct srb *srb;
4744 int i;
4745 unsigned long flags;
4746
4747 spin_lock_irqsave(&ha->hardware_lock, flags);
4748 for (i = 0; i < ha->host->can_queue; i++) {
4749 srb = qla4xxx_del_from_active_array(ha, i);
4750 if (srb != NULL) {
f4f5df23 4751 srb->cmd->result = res;
09a0f719 4752 kref_put(&srb->srb_ref, qla4xxx_srb_compl);
afaf5a2d
DS		 4753 }
4754 }
4755 spin_unlock_irqrestore(&ha->hardware_lock, flags);
afaf5a2d
DS		 4756}
4757
f4f5df23
VC		 4758void qla4xxx_dead_adapter_cleanup(struct scsi_qla_host *ha)
4759{
4760 clear_bit(AF_ONLINE, &ha->flags);
4761
4762 /* Disable the board */
4763 ql4_printk(KERN_INFO, ha, "Disabling the board\n");
f4f5df23
VC		 4764
4765 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
4766 qla4xxx_mark_all_devices_missing(ha);
4767 clear_bit(AF_INIT_DONE, &ha->flags);
4768}
4769
b3a271a9
MR		 4770static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session)
4771{
4772 struct iscsi_session *sess;
4773 struct ddb_entry *ddb_entry;
4774
4775 sess = cls_session->dd_data;
4776 ddb_entry = sess->dd_data;
4777 ddb_entry->fw_ddb_device_state = DDB_DS_SESSION_FAILED;
13483730
MC		 4778
4779 if (ddb_entry->ddb_type == FLASH_DDB)
4780 iscsi_block_session(ddb_entry->sess);
4781 else
4782 iscsi_session_failure(cls_session->dd_data,
4783 ISCSI_ERR_CONN_FAILED);
b3a271a9
MR		 4784}
4785
afaf5a2d
DS		 4786/**
4787 * qla4xxx_recover_adapter - recovers adapter after a fatal error
4788 * @ha: Pointer to host adapter structure.
afaf5a2d 4789 **/
f4f5df23 4790static int qla4xxx_recover_adapter(struct scsi_qla_host *ha)
afaf5a2d 4791{
f4f5df23
VC		 4792 int status = QLA_ERROR;
4793 uint8_t reset_chip = 0;
8e0f3a66 4794 uint32_t dev_state;
9ee91a38 4795 unsigned long wait;
afaf5a2d
DS		 4796
4797 /* Stall incoming I/O until we are done */
f4f5df23 4798 scsi_block_requests(ha->host);
afaf5a2d 4799 clear_bit(AF_ONLINE, &ha->flags);
b3a271a9 4800 clear_bit(AF_LINK_UP, &ha->flags);
50a29aec 4801
f4f5df23 4802 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: adapter OFFLINE\n", __func__));
afaf5a2d 4803
f4f5df23 4804 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
afaf5a2d 4805
b37ca418 4806 if ((is_qla8032(ha) || is_qla8042(ha)) &&
546fef27
TP		 4807 !test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) {
4808 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
4809 __func__);
4810 /* disable pause frame for ISP83xx */
4811 qla4_83xx_disable_pause(ha);
4812 }
4813
b3a271a9
MR		 4814 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session);
4815
f4f5df23
VC		 4816 if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
4817 reset_chip = 1;
afaf5a2d 4818
f4f5df23
VC		 4819 /* For the DPC_RESET_HA_INTR case (ISP-4xxx specific)
4820 * do not reset adapter, jump to initialize_adapter */
4821 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
4822 status = QLA_SUCCESS;
4823 goto recover_ha_init_adapter;
4824 }
afaf5a2d 4825
6e7b4292 4826 /* For the ISP-8xxx adapter, issue a stop_firmware if invoked
f4f5df23 4827 * from eh_host_reset or ioctl module */
6e7b4292 4828 if (is_qla80XX(ha) && !reset_chip &&
f4f5df23
VC		 4829 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) {
4830
4831 DEBUG2(ql4_printk(KERN_INFO, ha,
4832 "scsi%ld: %s - Performing stop_firmware...\n",
4833 ha->host_no, __func__));
4834 status = ha->isp_ops->reset_firmware(ha);
4835 if (status == QLA_SUCCESS) {
2bd1e2be
NJ		 4836 if (!test_bit(AF_FW_RECOVERY, &ha->flags))
4837 qla4xxx_cmd_wait(ha);
5c19b92a 4838
f4f5df23
VC		 4839 ha->isp_ops->disable_intrs(ha);
4840 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
4841 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
4842 } else {
4843 /* If the stop_firmware fails then
4844 * reset the entire chip */
4845 reset_chip = 1;
4846 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
4847 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4848 }
4849 }
dca05c4c 4850
f4f5df23 4851 /* Issue full chip reset if recovering from a catastrophic error,
6e7b4292 4852 * or if stop_firmware fails for ISP-8xxx.
f4f5df23 4853 * This is the default case for ISP-4xxx */
ee996a69
VC		 4854 if (is_qla40XX(ha) || reset_chip) {
4855 if (is_qla40XX(ha))
9ee91a38
SS		 4856 goto chip_reset;
4857
6e7b4292 4858 /* Check if 8XXX firmware is alive or not
9ee91a38
SS		 4859 * We may have arrived here from NEED_RESET
4860 * detection only */
4861 if (test_bit(AF_FW_RECOVERY, &ha->flags))
4862 goto chip_reset;
4863
4864 wait = jiffies + (FW_ALIVE_WAIT_TOV * HZ);
4865 while (time_before(jiffies, wait)) {
4866 if (qla4_8xxx_check_fw_alive(ha)) {
4867 qla4xxx_mailbox_premature_completion(ha);
4868 break;
4869 }
4870
4871 set_current_state(TASK_UNINTERRUPTIBLE);
4872 schedule_timeout(HZ);
4873 }
da106212 4874chip_reset:
2bd1e2be
NJ		 4875 if (!test_bit(AF_FW_RECOVERY, &ha->flags))
4876 qla4xxx_cmd_wait(ha);
da106212 4877
f4f5df23 4878 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
f4f5df23
VC		 4879 DEBUG2(ql4_printk(KERN_INFO, ha,
4880 "scsi%ld: %s - Performing chip reset..\n",
4881 ha->host_no, __func__));
4882 status = ha->isp_ops->reset_chip(ha);
61d9a2b6 4883 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
f4f5df23 4884 }
afaf5a2d
DS		 4885
4886 /* Flush any pending ddb changed AENs */
4887 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
4888
f4f5df23
VC		 4889recover_ha_init_adapter:
4890 /* Upon successful firmware/chip reset, re-initialize the adapter */
afaf5a2d 4891 if (status == QLA_SUCCESS) {
f4f5df23
VC		 4892 /* For ISP-4xxx, force function 1 to always initialize
4893 * before function 3 to prevent both funcions from
4894 * stepping on top of the other */
ee996a69 4895 if (is_qla40XX(ha) && (ha->mac_index == 3))
f4f5df23
VC		 4896 ssleep(6);
4897
4898 /* NOTE: AF_ONLINE flag set upon successful completion of
37418cc6 4899 * qla4xxx_initialize_adapter */
13483730 4900 status = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
37418cc6
NJ		 4901 if (is_qla80XX(ha) && (status == QLA_ERROR)) {
4902 status = qla4_8xxx_check_init_adapter_retry(ha);
4903 if (status == QLA_ERROR) {
4904 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Don't retry recover adapter\n",
4905 ha->host_no, __func__);
4906 qla4xxx_dead_adapter_cleanup(ha);
4907 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
4908 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
4909 clear_bit(DPC_RESET_HA_FW_CONTEXT,
4910 &ha->dpc_flags);
4911 goto exit_recover;
4912 }
4913 }
afaf5a2d
DS		 4914 }
4915
f4f5df23
VC		 4916 /* Retry failed adapter initialization, if necessary
4917 * Do not retry initialize_adapter for RESET_HA_INTR (ISP-4xxx specific)
4918 * case to prevent ping-pong resets between functions */
4919 if (!test_bit(AF_ONLINE, &ha->flags) &&
4920 !test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
afaf5a2d 4921 /* Adapter initialization failed, see if we can retry
f4f5df23
VC		 4922 * resetting the ha.
4923 * Since we don't want to block the DPC for too long
4924 * with multiple resets in the same thread,
4925 * utilize DPC to retry */
6e7b4292 4926 if (is_qla80XX(ha)) {
33693c7a
VC		 4927 ha->isp_ops->idc_lock(ha);
4928 dev_state = qla4_8xxx_rd_direct(ha,
4929 QLA8XXX_CRB_DEV_STATE);
4930 ha->isp_ops->idc_unlock(ha);
de8c72da 4931 if (dev_state == QLA8XXX_DEV_FAILED) {
8e0f3a66
SR		 4932 ql4_printk(KERN_INFO, ha, "%s: don't retry "
4933 "recover adapter. H/W is in Failed "
4934 "state\n", __func__);
4935 qla4xxx_dead_adapter_cleanup(ha);
4936 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
4937 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
4938 clear_bit(DPC_RESET_HA_FW_CONTEXT,
4939 &ha->dpc_flags);
4940 status = QLA_ERROR;
4941
4942 goto exit_recover;
4943 }
4944 }
4945
afaf5a2d
DS		 4946 if (!test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags)) {
4947 ha->retry_reset_ha_cnt = MAX_RESET_HA_RETRIES;
4948 DEBUG2(printk("scsi%ld: recover adapter - retrying "
4949 "(%d) more times\n", ha->host_no,
4950 ha->retry_reset_ha_cnt));
4951 set_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
4952 status = QLA_ERROR;
4953 } else {
4954 if (ha->retry_reset_ha_cnt > 0) {
4955 /* Schedule another Reset HA--DPC will retry */
4956 ha->retry_reset_ha_cnt--;
4957 DEBUG2(printk("scsi%ld: recover adapter - "
4958 "retry remaining %d\n",
4959 ha->host_no,
4960 ha->retry_reset_ha_cnt));
4961 status = QLA_ERROR;
4962 }
4963
4964 if (ha->retry_reset_ha_cnt == 0) {
4965 /* Recover adapter retries have been exhausted.
4966 * Adapter DEAD */
4967 DEBUG2(printk("scsi%ld: recover adapter "
4968 "failed - board disabled\n",
4969 ha->host_no));
f4f5df23 4970 qla4xxx_dead_adapter_cleanup(ha);
afaf5a2d
DS		 4971 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
4972 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
f4f5df23 4973 clear_bit(DPC_RESET_HA_FW_CONTEXT,
afaf5a2d
DS		 4974 &ha->dpc_flags);
4975 status = QLA_ERROR;
4976 }
4977 }
4978 } else {
4979 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
f4f5df23 4980 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
afaf5a2d
DS		 4981 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
4982 }
4983
8e0f3a66 4984exit_recover:
afaf5a2d
DS		 4985 ha->adapter_error_count++;
4986
f4f5df23
VC		 4987 if (test_bit(AF_ONLINE, &ha->flags))
4988 ha->isp_ops->enable_intrs(ha);
4989
4990 scsi_unblock_requests(ha->host);
4991
4992 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
4993 DEBUG2(printk("scsi%ld: recover adapter: %s\n", ha->host_no,
25985edc 4994 status == QLA_ERROR ? "FAILED" : "SUCCEEDED"));
afaf5a2d 4995
afaf5a2d
DS		 4996 return status;
4997}
4998
b3a271a9 4999static void qla4xxx_relogin_devices(struct iscsi_cls_session *cls_session)
2d7924e6 5000{
b3a271a9
MR		 5001 struct iscsi_session *sess;
5002 struct ddb_entry *ddb_entry;
5003 struct scsi_qla_host *ha;
2d7924e6 5004
b3a271a9
MR		 5005 sess = cls_session->dd_data;
5006 ddb_entry = sess->dd_data;
5007 ha = ddb_entry->ha;
5008 if (!iscsi_is_session_online(cls_session)) {
5009 if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) {
5010 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5011 " unblock session\n", ha->host_no, __func__,
5012 ddb_entry->fw_ddb_index);
5013 iscsi_unblock_session(ddb_entry->sess);
5014 } else {
5015 /* Trigger relogin */
13483730 5016 if (ddb_entry->ddb_type == FLASH_DDB) {
99c6a33b
AC		 5017 if (!(test_bit(DF_RELOGIN, &ddb_entry->flags) ||
5018 test_bit(DF_DISABLE_RELOGIN,
5019 &ddb_entry->flags)))
13483730
MC		 5020 qla4xxx_arm_relogin_timer(ddb_entry);
5021 } else
5022 iscsi_session_failure(cls_session->dd_data,
5023 ISCSI_ERR_CONN_FAILED);
2d7924e6
VC		 5024 }
5025 }
5026}
5027
13483730
MC		 5028int qla4xxx_unblock_flash_ddb(struct iscsi_cls_session *cls_session)
5029{
5030 struct iscsi_session *sess;
5031 struct ddb_entry *ddb_entry;
5032 struct scsi_qla_host *ha;
5033
5034 sess = cls_session->dd_data;
5035 ddb_entry = sess->dd_data;
5036 ha = ddb_entry->ha;
5037 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5038 " unblock session\n", ha->host_no, __func__,
5039 ddb_entry->fw_ddb_index);
5040
5041 iscsi_unblock_session(ddb_entry->sess);
5042
5043 /* Start scan target */
5044 if (test_bit(AF_ONLINE, &ha->flags)) {
5045 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5046 " start scan\n", ha->host_no, __func__,
5047 ddb_entry->fw_ddb_index);
5048 scsi_queue_work(ha->host, &ddb_entry->sess->scan_work);
5049 }
5050 return QLA_SUCCESS;
5051}
5052
5053int qla4xxx_unblock_ddb(struct iscsi_cls_session *cls_session)
5054{
5055 struct iscsi_session *sess;
5056 struct ddb_entry *ddb_entry;
5057 struct scsi_qla_host *ha;
80c53e64 5058 int status = QLA_SUCCESS;
13483730
MC		 5059
5060 sess = cls_session->dd_data;
5061 ddb_entry = sess->dd_data;
5062 ha = ddb_entry->ha;
5063 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5064 " unblock user space session\n", ha->host_no, __func__,
5065 ddb_entry->fw_ddb_index);
13483730 5066
80c53e64
MR		 5067 if (!iscsi_is_session_online(cls_session)) {
5068 iscsi_conn_start(ddb_entry->conn);
5069 iscsi_conn_login_event(ddb_entry->conn,
5070 ISCSI_CONN_STATE_LOGGED_IN);
5071 } else {
5072 ql4_printk(KERN_INFO, ha,
5073 "scsi%ld: %s: ddb[%d] session [%d] already logged in\n",
5074 ha->host_no, __func__, ddb_entry->fw_ddb_index,
5075 cls_session->sid);
5076 status = QLA_ERROR;
5077 }
5078
5079 return status;
13483730
MC		 5080}
5081
b3a271a9
MR		 5082static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha)
5083{
5084 iscsi_host_for_each_session(ha->host, qla4xxx_relogin_devices);
5085}
5086
13483730
MC		 5087static void qla4xxx_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)
5088{
5089 uint16_t relogin_timer;
5090 struct iscsi_session *sess;
5091 struct ddb_entry *ddb_entry;
5092 struct scsi_qla_host *ha;
5093
5094 sess = cls_sess->dd_data;
5095 ddb_entry = sess->dd_data;
5096 ha = ddb_entry->ha;
5097
5098 relogin_timer = max(ddb_entry->default_relogin_timeout,
5099 (uint16_t)RELOGIN_TOV);
5100 atomic_set(&ddb_entry->relogin_timer, relogin_timer);
5101
5102 DEBUG2(ql4_printk(KERN_INFO, ha,
5103 "scsi%ld: Relogin index [%d]. TOV=%d\n", ha->host_no,
5104 ddb_entry->fw_ddb_index, relogin_timer));
5105
5106 qla4xxx_login_flash_ddb(cls_sess);
5107}
5108
5109static void qla4xxx_dpc_relogin(struct iscsi_cls_session *cls_sess)
5110{
5111 struct iscsi_session *sess;
5112 struct ddb_entry *ddb_entry;
5113 struct scsi_qla_host *ha;
5114
5115 sess = cls_sess->dd_data;
5116 ddb_entry = sess->dd_data;
5117 ha = ddb_entry->ha;
5118
5119 if (!(ddb_entry->ddb_type == FLASH_DDB))
5120 return;
5121
99c6a33b
AC		 5122 if (test_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags))
5123 return;
5124
13483730
MC		 5125 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags) &&
5126 !iscsi_is_session_online(cls_sess)) {
5127 DEBUG2(ql4_printk(KERN_INFO, ha,
5128 "relogin issued\n"));
5129 qla4xxx_relogin_flash_ddb(cls_sess);
5130 }
5131}
5132
f4f5df23
VC		 5133void qla4xxx_wake_dpc(struct scsi_qla_host *ha)
5134{
1b46807e 5135 if (ha->dpc_thread)
f4f5df23 5136 queue_work(ha->dpc_thread, &ha->dpc_work);
f4f5df23
VC		 5137}
5138
ff884430
VC		 5139static struct qla4_work_evt *
5140qla4xxx_alloc_work(struct scsi_qla_host *ha, uint32_t data_size,
5141 enum qla4_work_type type)
5142{
5143 struct qla4_work_evt *e;
5144 uint32_t size = sizeof(struct qla4_work_evt) + data_size;
5145
5146 e = kzalloc(size, GFP_ATOMIC);
5147 if (!e)
5148 return NULL;
5149
5150 INIT_LIST_HEAD(&e->list);
5151 e->type = type;
5152 return e;
5153}
5154
5155static void qla4xxx_post_work(struct scsi_qla_host *ha,
5156 struct qla4_work_evt *e)
5157{
5158 unsigned long flags;
5159
5160 spin_lock_irqsave(&ha->work_lock, flags);
5161 list_add_tail(&e->list, &ha->work_list);
5162 spin_unlock_irqrestore(&ha->work_lock, flags);
5163 qla4xxx_wake_dpc(ha);
5164}
5165
5166int qla4xxx_post_aen_work(struct scsi_qla_host *ha,
5167 enum iscsi_host_event_code aen_code,
5168 uint32_t data_size, uint8_t *data)
5169{
5170 struct qla4_work_evt *e;
5171
5172 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_AEN);
5173 if (!e)
5174 return QLA_ERROR;
5175
5176 e->u.aen.code = aen_code;
5177 e->u.aen.data_size = data_size;
5178 memcpy(e->u.aen.data, data, data_size);
5179
5180 qla4xxx_post_work(ha, e);
5181
5182 return QLA_SUCCESS;
5183}
5184
c0b9d3f7
VC		 5185int qla4xxx_post_ping_evt_work(struct scsi_qla_host *ha,
5186 uint32_t status, uint32_t pid,
5187 uint32_t data_size, uint8_t *data)
5188{
5189 struct qla4_work_evt *e;
5190
5191 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_PING_STATUS);
5192 if (!e)
5193 return QLA_ERROR;
5194
5195 e->u.ping.status = status;
5196 e->u.ping.pid = pid;
5197 e->u.ping.data_size = data_size;
5198 memcpy(e->u.ping.data, data, data_size);
5199
5200 qla4xxx_post_work(ha, e);
5201
5202 return QLA_SUCCESS;
5203}
5204
a7380a65 5205static void qla4xxx_do_work(struct scsi_qla_host *ha)
ff884430
VC		 5206{
5207 struct qla4_work_evt *e, *tmp;
5208 unsigned long flags;
5209 LIST_HEAD(work);
5210
5211 spin_lock_irqsave(&ha->work_lock, flags);
5212 list_splice_init(&ha->work_list, &work);
5213 spin_unlock_irqrestore(&ha->work_lock, flags);
5214
5215 list_for_each_entry_safe(e, tmp, &work, list) {
5216 list_del_init(&e->list);
5217
5218 switch (e->type) {
5219 case QLA4_EVENT_AEN:
5220 iscsi_post_host_event(ha->host_no,
5221 &qla4xxx_iscsi_transport,
5222 e->u.aen.code,
5223 e->u.aen.data_size,
5224 e->u.aen.data);
5225 break;
c0b9d3f7
VC		 5226 case QLA4_EVENT_PING_STATUS:
5227 iscsi_ping_comp_event(ha->host_no,
5228 &qla4xxx_iscsi_transport,
5229 e->u.ping.status,
5230 e->u.ping.pid,
5231 e->u.ping.data_size,
5232 e->u.ping.data);
5233 break;
ff884430
VC		 5234 default:
5235 ql4_printk(KERN_WARNING, ha, "event type: 0x%x not "
5236 "supported", e->type);
5237 }
5238 kfree(e);
5239 }
5240}
5241
afaf5a2d
DS		 5242/**
5243 * qla4xxx_do_dpc - dpc routine
5244 * @data: in our case pointer to adapter structure
5245 *
5246 * This routine is a task that is schedule by the interrupt handler
5247 * to perform the background processing for interrupts. We put it
5248 * on a task queue that is consumed whenever the scheduler runs; that's
5249 * so you can do anything (i.e. put the process to sleep etc). In fact,
5250 * the mid-level tries to sleep when it reaches the driver threshold
5251 * "host->can_queue". This can cause a panic if we were in our interrupt code.
5252 **/
c4028958 5253static void qla4xxx_do_dpc(struct work_struct *work)
afaf5a2d 5254{
c4028958
DH		 5255 struct scsi_qla_host *ha =
5256 container_of(work, struct scsi_qla_host, dpc_work);
477ffb9d 5257 int status = QLA_ERROR;
afaf5a2d 5258
f26b9044 5259 DEBUG2(printk("scsi%ld: %s: DPC handler waking up."
f4f5df23
VC		 5260 "flags = 0x%08lx, dpc_flags = 0x%08lx\n",
5261 ha->host_no, __func__, ha->flags, ha->dpc_flags))
afaf5a2d
DS		 5262
5263 /* Initialization not yet finished. Don't do anything yet. */
5264 if (!test_bit(AF_INIT_DONE, &ha->flags))
1b46807e 5265 return;
afaf5a2d 5266
2232be0d
LC		 5267 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
5268 DEBUG2(printk(KERN_INFO "scsi%ld: %s: flags = %lx\n",
5269 ha->host_no, __func__, ha->flags));
1b46807e 5270 return;
2232be0d
LC		 5271 }
5272
ff884430
VC		 5273 /* post events to application */
5274 qla4xxx_do_work(ha);
5275
6e7b4292 5276 if (is_qla80XX(ha)) {
f4f5df23 5277 if (test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags)) {
b37ca418 5278 if (is_qla8032(ha) || is_qla8042(ha)) {
546fef27
TP		 5279 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
5280 __func__);
5281 /* disable pause frame for ISP83xx */
5282 qla4_83xx_disable_pause(ha);
5283 }
5284
33693c7a
VC		 5285 ha->isp_ops->idc_lock(ha);
5286 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
5287 QLA8XXX_DEV_FAILED);
5288 ha->isp_ops->idc_unlock(ha);
f4f5df23
VC		 5289 ql4_printk(KERN_INFO, ha, "HW State: FAILED\n");
5290 qla4_8xxx_device_state_handler(ha);
5291 }
320a61de 5292
7ab284c9
NJ		 5293 if (test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags)) {
5294 if (is_qla8042(ha)) {
5295 if (ha->idc_info.info2 &
5296 ENABLE_INTERNAL_LOOPBACK) {
5297 ql4_printk(KERN_INFO, ha, "%s: Disabling ACB\n",
5298 __func__);
5299 status = qla4_84xx_config_acb(ha,
5300 ACB_CONFIG_DISABLE);
5301 if (status != QLA_SUCCESS) {
5302 ql4_printk(KERN_INFO, ha, "%s: ACB config failed\n",
5303 __func__);
5304 }
5305 }
5306 }
320a61de 5307 qla4_83xx_post_idc_ack(ha);
7ab284c9
NJ		 5308 clear_bit(DPC_POST_IDC_ACK, &ha->dpc_flags);
5309 }
5310
5311 if (is_qla8042(ha) &&
5312 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags)) {
5313 ql4_printk(KERN_INFO, ha, "%s: Restoring ACB\n",
5314 __func__);
5315 if (qla4_84xx_config_acb(ha, ACB_CONFIG_SET) !=
5316 QLA_SUCCESS) {
5317 ql4_printk(KERN_INFO, ha, "%s: ACB config failed ",
5318 __func__);
5319 }
5320 clear_bit(DPC_RESTORE_ACB, &ha->dpc_flags);
5321 }
320a61de 5322
f4f5df23
VC		 5323 if (test_and_clear_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) {
5324 qla4_8xxx_need_qsnt_handler(ha);
5325 }
5326 }
5327
5328 if (!test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) &&
5329 (test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
afaf5a2d 5330 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
f4f5df23 5331 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))) {
6e7b4292 5332 if ((is_qla8022(ha) && ql4xdontresethba) ||
b37ca418
VC		 5333 ((is_qla8032(ha) || is_qla8042(ha)) &&
5334 qla4_83xx_idc_dontreset(ha))) {
f4f5df23
VC		 5335 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n",
5336 ha->host_no, __func__));
5337 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
5338 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags);
5339 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
5340 goto dpc_post_reset_ha;
5341 }
5342 if (test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) ||
5343 test_bit(DPC_RESET_HA, &ha->dpc_flags))
5344 qla4xxx_recover_adapter(ha);
afaf5a2d 5345
477ffb9d 5346 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
afaf5a2d 5347 uint8_t wait_time = RESET_INTR_TOV;
afaf5a2d 5348
afaf5a2d
DS		 5349 while ((readw(&ha->reg->ctrl_status) &
5350 (CSR_SOFT_RESET | CSR_FORCE_SOFT_RESET)) != 0) {
5351 if (--wait_time == 0)
5352 break;
afaf5a2d 5353 msleep(1000);
afaf5a2d 5354 }
afaf5a2d
DS		 5355 if (wait_time == 0)
5356 DEBUG2(printk("scsi%ld: %s: SR|FSR "
5357 "bit not cleared-- resetting\n",
5358 ha->host_no, __func__));
f4f5df23 5359 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
477ffb9d
DS		 5360 if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS) {
5361 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
f4f5df23 5362 status = qla4xxx_recover_adapter(ha);
477ffb9d
DS		 5363 }
5364 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags);
5365 if (status == QLA_SUCCESS)
f4f5df23 5366 ha->isp_ops->enable_intrs(ha);
afaf5a2d
DS		 5367 }
5368 }
5369
f4f5df23 5370dpc_post_reset_ha:
afaf5a2d
DS		 5371 /* ---- process AEN? --- */
5372 if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags))
5373 qla4xxx_process_aen(ha, PROCESS_ALL_AENS);
5374
5375 /* ---- Get DHCP IP Address? --- */
5376 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags))
5377 qla4xxx_get_dhcp_ip_address(ha);
5378
13483730
MC		 5379 /* ---- relogin device? --- */
5380 if (adapter_up(ha) &&
5381 test_and_clear_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags)) {
5382 iscsi_host_for_each_session(ha->host, qla4xxx_dpc_relogin);
5383 }
5384
065aa1b4 5385 /* ---- link change? --- */
026fbd3a
NJ		 5386 if (!test_bit(AF_LOOPBACK, &ha->flags) &&
5387 test_and_clear_bit(DPC_LINK_CHANGED, &ha->dpc_flags)) {
065aa1b4
VC		 5388 if (!test_bit(AF_LINK_UP, &ha->flags)) {
5389 /* ---- link down? --- */
2d7924e6 5390 qla4xxx_mark_all_devices_missing(ha);
065aa1b4
VC		 5391 } else {
5392 /* ---- link up? --- *
5393 * F/W will auto login to all devices ONLY ONCE after
5394 * link up during driver initialization and runtime
5395 * fatal error recovery. Therefore, the driver must
5396 * manually relogin to devices when recovering from
5397 * connection failures, logouts, expired KATO, etc. */
13483730
MC		 5398 if (test_and_clear_bit(AF_BUILD_DDB_LIST, &ha->flags)) {
5399 qla4xxx_build_ddb_list(ha, ha->is_reset);
5400 iscsi_host_for_each_session(ha->host,
5401 qla4xxx_login_flash_ddb);
5402 } else
5403 qla4xxx_relogin_all_devices(ha);
065aa1b4
VC		 5404 }
5405 }
afaf5a2d
DS		 5406}
5407
5408/**
5409 * qla4xxx_free_adapter - release the adapter
5410 * @ha: pointer to adapter structure
5411 **/
5412static void qla4xxx_free_adapter(struct scsi_qla_host *ha)
5413{
8a288960 5414 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
afaf5a2d 5415
5c19b92a
VC		 5416 /* Turn-off interrupts on the card. */
5417 ha->isp_ops->disable_intrs(ha);
afaf5a2d 5418
d9e62e51
VC		 5419 if (is_qla40XX(ha)) {
5420 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR),
5421 &ha->reg->ctrl_status);
5422 readl(&ha->reg->ctrl_status);
5423 } else if (is_qla8022(ha)) {
7664a1fd
VC		 5424 writel(0, &ha->qla4_82xx_reg->host_int);
5425 readl(&ha->qla4_82xx_reg->host_int);
b37ca418 5426 } else if (is_qla8032(ha) || is_qla8042(ha)) {
fbd8107c
VC		 5427 writel(0, &ha->qla4_83xx_reg->risc_intr);
5428 readl(&ha->qla4_83xx_reg->risc_intr);
d9e62e51
VC		 5429 }
5430
f4f5df23
VC		 5431 /* Remove timer thread, if present */
5432 if (ha->timer_active)
5433 qla4xxx_stop_timer(ha);
5434
afaf5a2d
DS		 5435 /* Kill the kernel thread for this host */
5436 if (ha->dpc_thread)
5437 destroy_workqueue(ha->dpc_thread);
5438
b3a271a9
MR		 5439 /* Kill the kernel thread for this host */
5440 if (ha->task_wq)
5441 destroy_workqueue(ha->task_wq);
5442
f4f5df23
VC		 5443 /* Put firmware in known state */
5444 ha->isp_ops->reset_firmware(ha);
afaf5a2d 5445
6e7b4292 5446 if (is_qla80XX(ha)) {
33693c7a 5447 ha->isp_ops->idc_lock(ha);
f4f5df23 5448 qla4_8xxx_clear_drv_active(ha);
33693c7a 5449 ha->isp_ops->idc_unlock(ha);
f4f5df23 5450 }
afaf5a2d 5451
afaf5a2d 5452 /* Detach interrupts */
5c19b92a 5453 qla4xxx_free_irqs(ha);
afaf5a2d 5454
bee4fe8e
DS		 5455 /* free extra memory */
5456 qla4xxx_mem_free(ha);
f4f5df23
VC		 5457}
5458
5459int qla4_8xxx_iospace_config(struct scsi_qla_host *ha)
5460{
5461 int status = 0;
f4f5df23
VC		 5462 unsigned long mem_base, mem_len, db_base, db_len;
5463 struct pci_dev *pdev = ha->pdev;
5464
5465 status = pci_request_regions(pdev, DRIVER_NAME);
5466 if (status) {
5467 printk(KERN_WARNING
5468 "scsi(%ld) Failed to reserve PIO regions (%s) "
5469 "status=%d\n", ha->host_no, pci_name(pdev), status);
5470 goto iospace_error_exit;
5471 }
5472
f4f5df23 5473 DEBUG2(printk(KERN_INFO "%s: revision-id=%d\n",
7d7311c4
SS		 5474 __func__, pdev->revision));
5475 ha->revision_id = pdev->revision;
bee4fe8e 5476
f4f5df23
VC		 5477 /* remap phys address */
5478 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
5479 mem_len = pci_resource_len(pdev, 0);
5480 DEBUG2(printk(KERN_INFO "%s: ioremap from %lx a size of %lx\n",
5481 __func__, mem_base, mem_len));
afaf5a2d 5482
f4f5df23
VC		 5483 /* mapping of pcibase pointer */
5484 ha->nx_pcibase = (unsigned long)ioremap(mem_base, mem_len);
5485 if (!ha->nx_pcibase) {
5486 printk(KERN_ERR
5487 "cannot remap MMIO (%s), aborting\n", pci_name(pdev));
5488 pci_release_regions(ha->pdev);
5489 goto iospace_error_exit;
5490 }
5491
5492 /* Mapping of IO base pointer, door bell read and write pointer */
5493
5494 /* mapping of IO base pointer */
6e7b4292
VC		 5495 if (is_qla8022(ha)) {
5496 ha->qla4_82xx_reg = (struct device_reg_82xx __iomem *)
5497 ((uint8_t *)ha->nx_pcibase + 0xbc000 +
5498 (ha->pdev->devfn << 11));
5499 ha->nx_db_wr_ptr = (ha->pdev->devfn == 4 ? QLA82XX_CAM_RAM_DB1 :
5500 QLA82XX_CAM_RAM_DB2);
b37ca418 5501 } else if (is_qla8032(ha) || is_qla8042(ha)) {
6e7b4292
VC		 5502 ha->qla4_83xx_reg = (struct device_reg_83xx __iomem *)
5503 ((uint8_t *)ha->nx_pcibase);
5504 }
f4f5df23
VC		 5505
5506 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
5507 db_len = pci_resource_len(pdev, 4);
5508
2657c800 5509 return 0;
f4f5df23
VC		 5510iospace_error_exit:
5511 return -ENOMEM;
afaf5a2d
DS		 5512}
5513
5514/***
5515 * qla4xxx_iospace_config - maps registers
5516 * @ha: pointer to adapter structure
5517 *
5518 * This routines maps HBA's registers from the pci address space
5519 * into the kernel virtual address space for memory mapped i/o.
5520 **/
f4f5df23 5521int qla4xxx_iospace_config(struct scsi_qla_host *ha)
afaf5a2d
DS		 5522{
5523 unsigned long pio, pio_len, pio_flags;
5524 unsigned long mmio, mmio_len, mmio_flags;
5525
5526 pio = pci_resource_start(ha->pdev, 0);
5527 pio_len = pci_resource_len(ha->pdev, 0);
5528 pio_flags = pci_resource_flags(ha->pdev, 0);
5529 if (pio_flags & IORESOURCE_IO) {
5530 if (pio_len < MIN_IOBASE_LEN) {
c2660df3 5531 ql4_printk(KERN_WARNING, ha,
afaf5a2d
DS		 5532 "Invalid PCI I/O region size\n");
5533 pio = 0;
5534 }
5535 } else {
c2660df3 5536 ql4_printk(KERN_WARNING, ha, "region #0 not a PIO resource\n");
afaf5a2d
DS		 5537 pio = 0;
5538 }
5539
5540 /* Use MMIO operations for all accesses. */
5541 mmio = pci_resource_start(ha->pdev, 1);
5542 mmio_len = pci_resource_len(ha->pdev, 1);
5543 mmio_flags = pci_resource_flags(ha->pdev, 1);
5544
5545 if (!(mmio_flags & IORESOURCE_MEM)) {
c2660df3
VC		 5546 ql4_printk(KERN_ERR, ha,
5547 "region #0 not an MMIO resource, aborting\n");
afaf5a2d
DS		 5548
5549 goto iospace_error_exit;
5550 }
c2660df3 5551
afaf5a2d 5552 if (mmio_len < MIN_IOBASE_LEN) {
c2660df3
VC		 5553 ql4_printk(KERN_ERR, ha,
5554 "Invalid PCI mem region size, aborting\n");
afaf5a2d
DS		 5555 goto iospace_error_exit;
5556 }
5557
5558 if (pci_request_regions(ha->pdev, DRIVER_NAME)) {
c2660df3
VC		 5559 ql4_printk(KERN_WARNING, ha,
5560 "Failed to reserve PIO/MMIO regions\n");
afaf5a2d
DS		 5561
5562 goto iospace_error_exit;
5563 }
5564
5565 ha->pio_address = pio;
5566 ha->pio_length = pio_len;
5567 ha->reg = ioremap(mmio, MIN_IOBASE_LEN);
5568 if (!ha->reg) {
c2660df3
VC		 5569 ql4_printk(KERN_ERR, ha,
5570 "cannot remap MMIO, aborting\n");
afaf5a2d
DS		 5571
5572 goto iospace_error_exit;
5573 }
5574
5575 return 0;
5576
5577iospace_error_exit:
5578 return -ENOMEM;
5579}
5580
f4f5df23
VC		 5581static struct isp_operations qla4xxx_isp_ops = {
5582 .iospace_config = qla4xxx_iospace_config,
5583 .pci_config = qla4xxx_pci_config,
5584 .disable_intrs = qla4xxx_disable_intrs,
5585 .enable_intrs = qla4xxx_enable_intrs,
5586 .start_firmware = qla4xxx_start_firmware,
5587 .intr_handler = qla4xxx_intr_handler,
5588 .interrupt_service_routine = qla4xxx_interrupt_service_routine,
5589 .reset_chip = qla4xxx_soft_reset,
5590 .reset_firmware = qla4xxx_hw_reset,
5591 .queue_iocb = qla4xxx_queue_iocb,
5592 .complete_iocb = qla4xxx_complete_iocb,
5593 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out,
5594 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in,
5595 .get_sys_info = qla4xxx_get_sys_info,
33693c7a
VC		 5596 .queue_mailbox_command = qla4xxx_queue_mbox_cmd,
5597 .process_mailbox_interrupt = qla4xxx_process_mbox_intr,
f4f5df23
VC		 5598};
5599
7664a1fd 5600static struct isp_operations qla4_82xx_isp_ops = {
f4f5df23
VC		 5601 .iospace_config = qla4_8xxx_iospace_config,
5602 .pci_config = qla4_8xxx_pci_config,
f8086f4f
VC		 5603 .disable_intrs = qla4_82xx_disable_intrs,
5604 .enable_intrs = qla4_82xx_enable_intrs,
f4f5df23 5605 .start_firmware = qla4_8xxx_load_risc,
33693c7a 5606 .restart_firmware = qla4_82xx_try_start_fw,
f8086f4f
VC		 5607 .intr_handler = qla4_82xx_intr_handler,
5608 .interrupt_service_routine = qla4_82xx_interrupt_service_routine,
33693c7a 5609 .need_reset = qla4_8xxx_need_reset,
f8086f4f 5610 .reset_chip = qla4_82xx_isp_reset,
f4f5df23 5611 .reset_firmware = qla4_8xxx_stop_firmware,
f8086f4f
VC		 5612 .queue_iocb = qla4_82xx_queue_iocb,
5613 .complete_iocb = qla4_82xx_complete_iocb,
5614 .rd_shdw_req_q_out = qla4_82xx_rd_shdw_req_q_out,
5615 .rd_shdw_rsp_q_in = qla4_82xx_rd_shdw_rsp_q_in,
f4f5df23 5616 .get_sys_info = qla4_8xxx_get_sys_info,
33693c7a
VC		 5617 .rd_reg_direct = qla4_82xx_rd_32,
5618 .wr_reg_direct = qla4_82xx_wr_32,
5619 .rd_reg_indirect = qla4_82xx_md_rd_32,
5620 .wr_reg_indirect = qla4_82xx_md_wr_32,
5621 .idc_lock = qla4_82xx_idc_lock,
5622 .idc_unlock = qla4_82xx_idc_unlock,
5623 .rom_lock_recovery = qla4_82xx_rom_lock_recovery,
5624 .queue_mailbox_command = qla4_82xx_queue_mbox_cmd,
5625 .process_mailbox_interrupt = qla4_82xx_process_mbox_intr,
f4f5df23
VC		 5626};
5627
6e7b4292
VC		 5628static struct isp_operations qla4_83xx_isp_ops = {
5629 .iospace_config = qla4_8xxx_iospace_config,
5630 .pci_config = qla4_8xxx_pci_config,
5631 .disable_intrs = qla4_83xx_disable_intrs,
5632 .enable_intrs = qla4_83xx_enable_intrs,
5633 .start_firmware = qla4_8xxx_load_risc,
5634 .restart_firmware = qla4_83xx_start_firmware,
5635 .intr_handler = qla4_83xx_intr_handler,
5636 .interrupt_service_routine = qla4_83xx_interrupt_service_routine,
5637 .need_reset = qla4_8xxx_need_reset,
5638 .reset_chip = qla4_83xx_isp_reset,
5639 .reset_firmware = qla4_8xxx_stop_firmware,
5640 .queue_iocb = qla4_83xx_queue_iocb,
5641 .complete_iocb = qla4_83xx_complete_iocb,
a24058f9
TP		 5642 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out,
5643 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in,
6e7b4292
VC		 5644 .get_sys_info = qla4_8xxx_get_sys_info,
5645 .rd_reg_direct = qla4_83xx_rd_reg,
5646 .wr_reg_direct = qla4_83xx_wr_reg,
5647 .rd_reg_indirect = qla4_83xx_rd_reg_indirect,
5648 .wr_reg_indirect = qla4_83xx_wr_reg_indirect,
5649 .idc_lock = qla4_83xx_drv_lock,
5650 .idc_unlock = qla4_83xx_drv_unlock,
5651 .rom_lock_recovery = qla4_83xx_rom_lock_recovery,
5652 .queue_mailbox_command = qla4_83xx_queue_mbox_cmd,
5653 .process_mailbox_interrupt = qla4_83xx_process_mbox_intr,
f4f5df23
VC		 5654};
5655
5656uint16_t qla4xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha)
5657{
5658 return (uint16_t)le32_to_cpu(ha->shadow_regs->req_q_out);
5659}
5660
f8086f4f 5661uint16_t qla4_82xx_rd_shdw_req_q_out(struct scsi_qla_host *ha)
f4f5df23 5662{
7664a1fd 5663 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->req_q_out));
f4f5df23
VC		 5664}
5665
5666uint16_t qla4xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha)
5667{
5668 return (uint16_t)le32_to_cpu(ha->shadow_regs->rsp_q_in);
5669}
5670
f8086f4f 5671uint16_t qla4_82xx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha)
f4f5df23 5672{
7664a1fd 5673 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->rsp_q_in));
f4f5df23
VC		 5674}
5675
2a991c21
MR		 5676static ssize_t qla4xxx_show_boot_eth_info(void *data, int type, char *buf)
5677{
5678 struct scsi_qla_host *ha = data;
5679 char *str = buf;
5680 int rc;
5681
5682 switch (type) {
5683 case ISCSI_BOOT_ETH_FLAGS:
5684 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT);
5685 break;
5686 case ISCSI_BOOT_ETH_INDEX:
5687 rc = sprintf(str, "0\n");
5688 break;
5689 case ISCSI_BOOT_ETH_MAC:
5690 rc = sysfs_format_mac(str, ha->my_mac,
5691 MAC_ADDR_LEN);
5692 break;
5693 default:
5694 rc = -ENOSYS;
5695 break;
5696 }
5697 return rc;
5698}
5699
587a1f16 5700static umode_t qla4xxx_eth_get_attr_visibility(void *data, int type)
2a991c21
MR		 5701{
5702 int rc;
5703
5704 switch (type) {
5705 case ISCSI_BOOT_ETH_FLAGS:
5706 case ISCSI_BOOT_ETH_MAC:
5707 case ISCSI_BOOT_ETH_INDEX:
5708 rc = S_IRUGO;
5709 break;
5710 default:
5711 rc = 0;
5712 break;
5713 }
5714 return rc;
5715}
5716
5717static ssize_t qla4xxx_show_boot_ini_info(void *data, int type, char *buf)
5718{
5719 struct scsi_qla_host *ha = data;
5720 char *str = buf;
5721 int rc;
5722
5723 switch (type) {
5724 case ISCSI_BOOT_INI_INITIATOR_NAME:
5725 rc = sprintf(str, "%s\n", ha->name_string);
5726 break;
5727 default:
5728 rc = -ENOSYS;
5729 break;
5730 }
5731 return rc;
5732}
5733
587a1f16 5734static umode_t qla4xxx_ini_get_attr_visibility(void *data, int type)
2a991c21
MR		 5735{
5736 int rc;
5737
5738 switch (type) {
5739 case ISCSI_BOOT_INI_INITIATOR_NAME:
5740 rc = S_IRUGO;
5741 break;
5742 default:
5743 rc = 0;
5744 break;
5745 }
5746 return rc;
5747}
5748
5749static ssize_t
5750qla4xxx_show_boot_tgt_info(struct ql4_boot_session_info *boot_sess, int type,
5751 char *buf)
5752{
5753 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0];
5754 char *str = buf;
5755 int rc;
5756
5757 switch (type) {
5758 case ISCSI_BOOT_TGT_NAME:
5759 rc = sprintf(buf, "%s\n", (char *)&boot_sess->target_name);
5760 break;
5761 case ISCSI_BOOT_TGT_IP_ADDR:
5762 if (boot_sess->conn_list[0].dest_ipaddr.ip_type == 0x1)
5763 rc = sprintf(buf, "%pI4\n",
5764 &boot_conn->dest_ipaddr.ip_address);
5765 else
5766 rc = sprintf(str, "%pI6\n",
5767 &boot_conn->dest_ipaddr.ip_address);
5768 break;
5769 case ISCSI_BOOT_TGT_PORT:
5770 rc = sprintf(str, "%d\n", boot_conn->dest_port);
5771 break;
5772 case ISCSI_BOOT_TGT_CHAP_NAME:
5773 rc = sprintf(str, "%.*s\n",
5774 boot_conn->chap.target_chap_name_length,
5775 (char *)&boot_conn->chap.target_chap_name);
5776 break;
5777 case ISCSI_BOOT_TGT_CHAP_SECRET:
5778 rc = sprintf(str, "%.*s\n",
5779 boot_conn->chap.target_secret_length,
5780 (char *)&boot_conn->chap.target_secret);
5781 break;
5782 case ISCSI_BOOT_TGT_REV_CHAP_NAME:
5783 rc = sprintf(str, "%.*s\n",
5784 boot_conn->chap.intr_chap_name_length,
5785 (char *)&boot_conn->chap.intr_chap_name);
5786 break;
5787 case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
5788 rc = sprintf(str, "%.*s\n",
5789 boot_conn->chap.intr_secret_length,
5790 (char *)&boot_conn->chap.intr_secret);
5791 break;
5792 case ISCSI_BOOT_TGT_FLAGS:
5793 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT);
5794 break;
5795 case ISCSI_BOOT_TGT_NIC_ASSOC:
5796 rc = sprintf(str, "0\n");
5797 break;
5798 default:
5799 rc = -ENOSYS;
5800 break;
5801 }
5802 return rc;
5803}
5804
5805static ssize_t qla4xxx_show_boot_tgt_pri_info(void *data, int type, char *buf)
5806{
5807 struct scsi_qla_host *ha = data;
5808 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_pri_sess);
5809
5810 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf);
5811}
5812
5813static ssize_t qla4xxx_show_boot_tgt_sec_info(void *data, int type, char *buf)
5814{
5815 struct scsi_qla_host *ha = data;
5816 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_sec_sess);
5817
5818 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf);
5819}
5820
587a1f16 5821static umode_t qla4xxx_tgt_get_attr_visibility(void *data, int type)
2a991c21
MR		 5822{
5823 int rc;
5824
5825 switch (type) {
5826 case ISCSI_BOOT_TGT_NAME:
5827 case ISCSI_BOOT_TGT_IP_ADDR:
5828 case ISCSI_BOOT_TGT_PORT:
5829 case ISCSI_BOOT_TGT_CHAP_NAME:
5830 case ISCSI_BOOT_TGT_CHAP_SECRET:
5831 case ISCSI_BOOT_TGT_REV_CHAP_NAME:
5832 case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
5833 case ISCSI_BOOT_TGT_NIC_ASSOC:
5834 case ISCSI_BOOT_TGT_FLAGS:
5835 rc = S_IRUGO;
5836 break;
5837 default:
5838 rc = 0;
5839 break;
5840 }
5841 return rc;
5842}
5843
5844static void qla4xxx_boot_release(void *data)
5845{
5846 struct scsi_qla_host *ha = data;
5847
5848 scsi_host_put(ha->host);
5849}
5850
5851static int get_fw_boot_info(struct scsi_qla_host *ha, uint16_t ddb_index[])
5852{
5853 dma_addr_t buf_dma;
5854 uint32_t addr, pri_addr, sec_addr;
5855 uint32_t offset;
5856 uint16_t func_num;
5857 uint8_t val;
5858 uint8_t *buf = NULL;
5859 size_t size = 13 * sizeof(uint8_t);
5860 int ret = QLA_SUCCESS;
5861
5862 func_num = PCI_FUNC(ha->pdev->devfn);
5863
0d5b36b8
MR		 5864 ql4_printk(KERN_INFO, ha, "%s: Get FW boot info for 0x%x func %d\n",
5865 __func__, ha->pdev->device, func_num);
2a991c21 5866
0d5b36b8 5867 if (is_qla40XX(ha)) {
2a991c21
MR		 5868 if (func_num == 1) {
5869 addr = NVRAM_PORT0_BOOT_MODE;
5870 pri_addr = NVRAM_PORT0_BOOT_PRI_TGT;
5871 sec_addr = NVRAM_PORT0_BOOT_SEC_TGT;
5872 } else if (func_num == 3) {
5873 addr = NVRAM_PORT1_BOOT_MODE;
5874 pri_addr = NVRAM_PORT1_BOOT_PRI_TGT;
5875 sec_addr = NVRAM_PORT1_BOOT_SEC_TGT;
5876 } else {
5877 ret = QLA_ERROR;
5878 goto exit_boot_info;
5879 }
5880
5881 /* Check Boot Mode */
5882 val = rd_nvram_byte(ha, addr);
5883 if (!(val & 0x07)) {
e8fb00e0
MR		 5884 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Adapter boot "
5885 "options : 0x%x\n", __func__, val));
2a991c21
MR		 5886 ret = QLA_ERROR;
5887 goto exit_boot_info;
5888 }
5889
5890 /* get primary valid target index */
5891 val = rd_nvram_byte(ha, pri_addr);
5892 if (val & BIT_7)
5893 ddb_index[0] = (val & 0x7f);
2a991c21
MR		 5894
5895 /* get secondary valid target index */
5896 val = rd_nvram_byte(ha, sec_addr);
5897 if (val & BIT_7)
5898 ddb_index[1] = (val & 0x7f);
2a991c21 5899
3e788fb1 5900 } else if (is_qla80XX(ha)) {
2a991c21
MR		 5901 buf = dma_alloc_coherent(&ha->pdev->dev, size,
5902 &buf_dma, GFP_KERNEL);
5903 if (!buf) {
5904 DEBUG2(ql4_printk(KERN_ERR, ha,
5905 "%s: Unable to allocate dma buffer\n",
5906 __func__));
5907 ret = QLA_ERROR;
5908 goto exit_boot_info;
5909 }
5910
5911 if (ha->port_num == 0)
5912 offset = BOOT_PARAM_OFFSET_PORT0;
5913 else if (ha->port_num == 1)
5914 offset = BOOT_PARAM_OFFSET_PORT1;
5915 else {
5916 ret = QLA_ERROR;
5917 goto exit_boot_info_free;
5918 }
5919 addr = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_iscsi_param * 4) +
5920 offset;
5921 if (qla4xxx_get_flash(ha, buf_dma, addr,
5922 13 * sizeof(uint8_t)) != QLA_SUCCESS) {
5923 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: Get Flash"
0bd7f842 5924 " failed\n", ha->host_no, __func__));
2a991c21
MR		 5925 ret = QLA_ERROR;
5926 goto exit_boot_info_free;
5927 }
5928 /* Check Boot Mode */
5929 if (!(buf[1] & 0x07)) {
e8fb00e0
MR		 5930 DEBUG2(ql4_printk(KERN_INFO, ha, "Firmware boot options"
5931 " : 0x%x\n", buf[1]));
2a991c21
MR		 5932 ret = QLA_ERROR;
5933 goto exit_boot_info_free;
5934 }
5935
5936 /* get primary valid target index */
5937 if (buf[2] & BIT_7)
5938 ddb_index[0] = buf[2] & 0x7f;
2a991c21
MR		 5939
5940 /* get secondary valid target index */
5941 if (buf[11] & BIT_7)
5942 ddb_index[1] = buf[11] & 0x7f;
2a991c21
MR		 5943 } else {
5944 ret = QLA_ERROR;
5945 goto exit_boot_info;
5946 }
5947
5948 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary target ID %d, Secondary"
5949 " target ID %d\n", __func__, ddb_index[0],
5950 ddb_index[1]));
5951
5952exit_boot_info_free:
5953 dma_free_coherent(&ha->pdev->dev, size, buf, buf_dma);
5954exit_boot_info:
20e835b4
LC		 5955 ha->pri_ddb_idx = ddb_index[0];
5956 ha->sec_ddb_idx = ddb_index[1];
2a991c21
MR		 5957 return ret;
5958}
5959
28deb45c
LC		 5960/**
5961 * qla4xxx_get_bidi_chap - Get a BIDI CHAP user and password
5962 * @ha: pointer to adapter structure
5963 * @username: CHAP username to be returned
5964 * @password: CHAP password to be returned
5965 *
5966 * If a boot entry has BIDI CHAP enabled then we need to set the BIDI CHAP
5967 * user and password in the sysfs entry in /sys/firmware/iscsi_boot#/.
5968 * So from the CHAP cache find the first BIDI CHAP entry and set it
5969 * to the boot record in sysfs.
5970 **/
5971static int qla4xxx_get_bidi_chap(struct scsi_qla_host *ha, char *username,
5972 char *password)
5973{
5974 int i, ret = -EINVAL;
5975 int max_chap_entries = 0;
5976 struct ql4_chap_table *chap_table;
5977
d11b0ca3 5978 if (is_qla80XX(ha))
28deb45c
LC		 5979 max_chap_entries = (ha->hw.flt_chap_size / 2) /
5980 sizeof(struct ql4_chap_table);
5981 else
5982 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
5983
5984 if (!ha->chap_list) {
5985 ql4_printk(KERN_ERR, ha, "Do not have CHAP table cache\n");
5986 return ret;
5987 }
5988
5989 mutex_lock(&ha->chap_sem);
5990 for (i = 0; i < max_chap_entries; i++) {
5991 chap_table = (struct ql4_chap_table *)ha->chap_list + i;
5992 if (chap_table->cookie !=
5993 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) {
5994 continue;
5995 }
5996
5997 if (chap_table->flags & BIT_7) /* local */
5998 continue;
5999
6000 if (!(chap_table->flags & BIT_6)) /* Not BIDI */
6001 continue;
6002
6003 strncpy(password, chap_table->secret, QL4_CHAP_MAX_SECRET_LEN);
6004 strncpy(username, chap_table->name, QL4_CHAP_MAX_NAME_LEN);
6005 ret = 0;
6006 break;
6007 }
6008 mutex_unlock(&ha->chap_sem);
6009
6010 return ret;
6011}
6012
6013
2a991c21
MR		 6014static int qla4xxx_get_boot_target(struct scsi_qla_host *ha,
6015 struct ql4_boot_session_info *boot_sess,
6016 uint16_t ddb_index)
6017{
6018 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0];
6019 struct dev_db_entry *fw_ddb_entry;
6020 dma_addr_t fw_ddb_entry_dma;
6021 uint16_t idx;
6022 uint16_t options;
6023 int ret = QLA_SUCCESS;
6024
6025 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
6026 &fw_ddb_entry_dma, GFP_KERNEL);
6027 if (!fw_ddb_entry) {
6028 DEBUG2(ql4_printk(KERN_ERR, ha,
6029 "%s: Unable to allocate dma buffer.\n",
6030 __func__));
6031 ret = QLA_ERROR;
6032 return ret;
6033 }
6034
6035 if (qla4xxx_bootdb_by_index(ha, fw_ddb_entry,
6036 fw_ddb_entry_dma, ddb_index)) {
e8fb00e0
MR		 6037 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: No Flash DDB found at "
6038 "index [%d]\n", __func__, ddb_index));
2a991c21
MR		 6039 ret = QLA_ERROR;
6040 goto exit_boot_target;
6041 }
6042
6043 /* Update target name and IP from DDB */
6044 memcpy(boot_sess->target_name, fw_ddb_entry->iscsi_name,
6045 min(sizeof(boot_sess->target_name),
6046 sizeof(fw_ddb_entry->iscsi_name)));
6047
6048 options = le16_to_cpu(fw_ddb_entry->options);
6049 if (options & DDB_OPT_IPV6_DEVICE) {
6050 memcpy(&boot_conn->dest_ipaddr.ip_address,
6051 &fw_ddb_entry->ip_addr[0], IPv6_ADDR_LEN);
6052 } else {
6053 boot_conn->dest_ipaddr.ip_type = 0x1;
6054 memcpy(&boot_conn->dest_ipaddr.ip_address,
6055 &fw_ddb_entry->ip_addr[0], IP_ADDR_LEN);
6056 }
6057
6058 boot_conn->dest_port = le16_to_cpu(fw_ddb_entry->port);
6059
6060 /* update chap information */
6061 idx = __le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
6062
6063 if (BIT_7 & le16_to_cpu(fw_ddb_entry->iscsi_options)) {
6064
6065 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting chap\n"));
6066
6067 ret = qla4xxx_get_chap(ha, (char *)&boot_conn->chap.
6068 target_chap_name,
6069 (char *)&boot_conn->chap.target_secret,
6070 idx);
6071 if (ret) {
6072 ql4_printk(KERN_ERR, ha, "Failed to set chap\n");
6073 ret = QLA_ERROR;
6074 goto exit_boot_target;
6075 }
6076
6077 boot_conn->chap.target_chap_name_length = QL4_CHAP_MAX_NAME_LEN;
6078 boot_conn->chap.target_secret_length = QL4_CHAP_MAX_SECRET_LEN;
6079 }
6080
6081 if (BIT_4 & le16_to_cpu(fw_ddb_entry->iscsi_options)) {
6082
6083 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting BIDI chap\n"));
6084
28deb45c
LC		 6085 ret = qla4xxx_get_bidi_chap(ha,
6086 (char *)&boot_conn->chap.intr_chap_name,
6087 (char *)&boot_conn->chap.intr_secret);
6088
2a991c21
MR		 6089 if (ret) {
6090 ql4_printk(KERN_ERR, ha, "Failed to set BIDI chap\n");
6091 ret = QLA_ERROR;
6092 goto exit_boot_target;
6093 }
6094
6095 boot_conn->chap.intr_chap_name_length = QL4_CHAP_MAX_NAME_LEN;
6096 boot_conn->chap.intr_secret_length = QL4_CHAP_MAX_SECRET_LEN;
6097 }
6098
6099exit_boot_target:
6100 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
6101 fw_ddb_entry, fw_ddb_entry_dma);
6102 return ret;
6103}
6104
6105static int qla4xxx_get_boot_info(struct scsi_qla_host *ha)
6106{
6107 uint16_t ddb_index[2];
8de5b958
LC		 6108 int ret = QLA_ERROR;
6109 int rval;
2a991c21
MR		 6110
6111 memset(ddb_index, 0, sizeof(ddb_index));
8de5b958
LC		 6112 ddb_index[0] = 0xffff;
6113 ddb_index[1] = 0xffff;
2a991c21
MR		 6114 ret = get_fw_boot_info(ha, ddb_index);
6115 if (ret != QLA_SUCCESS) {
e8fb00e0
MR		 6116 DEBUG2(ql4_printk(KERN_INFO, ha,
6117 "%s: No boot target configured.\n", __func__));
2a991c21
MR		 6118 return ret;
6119 }
6120
13483730
MC		 6121 if (ql4xdisablesysfsboot)
6122 return QLA_SUCCESS;
6123
8de5b958
LC		 6124 if (ddb_index[0] == 0xffff)
6125 goto sec_target;
6126
6127 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_pri_sess),
2a991c21 6128 ddb_index[0]);
8de5b958 6129 if (rval != QLA_SUCCESS) {
e8fb00e0
MR		 6130 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary boot target not "
6131 "configured\n", __func__));
8de5b958
LC		 6132 } else
6133 ret = QLA_SUCCESS;
2a991c21 6134
8de5b958
LC		 6135sec_target:
6136 if (ddb_index[1] == 0xffff)
6137 goto exit_get_boot_info;
6138
6139 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_sec_sess),
2a991c21 6140 ddb_index[1]);
8de5b958 6141 if (rval != QLA_SUCCESS) {
e8fb00e0
MR		 6142 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Secondary boot target not"
6143 " configured\n", __func__));
8de5b958
LC		 6144 } else
6145 ret = QLA_SUCCESS;
6146
6147exit_get_boot_info:
2a991c21
MR		 6148 return ret;
6149}
6150
6151static int qla4xxx_setup_boot_info(struct scsi_qla_host *ha)
6152{
6153 struct iscsi_boot_kobj *boot_kobj;
6154
6155 if (qla4xxx_get_boot_info(ha) != QLA_SUCCESS)
13483730
MC		 6156 return QLA_ERROR;
6157
6158 if (ql4xdisablesysfsboot) {
6159 ql4_printk(KERN_INFO, ha,
0bd7f842 6160 "%s: syfsboot disabled - driver will trigger login "
13483730
MC		 6161 "and publish session for discovery .\n", __func__);
6162 return QLA_SUCCESS;
6163 }
6164
2a991c21
MR		 6165
6166 ha->boot_kset = iscsi_boot_create_host_kset(ha->host->host_no);
6167 if (!ha->boot_kset)
6168 goto kset_free;
6169
6170 if (!scsi_host_get(ha->host))
6171 goto kset_free;
6172 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 0, ha,
6173 qla4xxx_show_boot_tgt_pri_info,
6174 qla4xxx_tgt_get_attr_visibility,
6175 qla4xxx_boot_release);
6176 if (!boot_kobj)
6177 goto put_host;
6178
6179 if (!scsi_host_get(ha->host))
6180 goto kset_free;
6181 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 1, ha,
6182 qla4xxx_show_boot_tgt_sec_info,
6183 qla4xxx_tgt_get_attr_visibility,
6184 qla4xxx_boot_release);
6185 if (!boot_kobj)
6186 goto put_host;
6187
6188 if (!scsi_host_get(ha->host))
6189 goto kset_free;
6190 boot_kobj = iscsi_boot_create_initiator(ha->boot_kset, 0, ha,
6191 qla4xxx_show_boot_ini_info,
6192 qla4xxx_ini_get_attr_visibility,
6193 qla4xxx_boot_release);
6194 if (!boot_kobj)
6195 goto put_host;
6196
6197 if (!scsi_host_get(ha->host))
6198 goto kset_free;
6199 boot_kobj = iscsi_boot_create_ethernet(ha->boot_kset, 0, ha,
6200 qla4xxx_show_boot_eth_info,
6201 qla4xxx_eth_get_attr_visibility,
6202 qla4xxx_boot_release);
6203 if (!boot_kobj)
6204 goto put_host;
6205
13483730 6206 return QLA_SUCCESS;
2a991c21
MR		 6207
6208put_host:
6209 scsi_host_put(ha->host);
6210kset_free:
6211 iscsi_boot_destroy_kset(ha->boot_kset);
6212 return -ENOMEM;
6213}
6214
4549415a 6215
13483730
MC		 6216static void qla4xxx_get_param_ddb(struct ddb_entry *ddb_entry,
6217 struct ql4_tuple_ddb *tddb)
6218{
6219 struct scsi_qla_host *ha;
6220 struct iscsi_cls_session *cls_sess;
6221 struct iscsi_cls_conn *cls_conn;
6222 struct iscsi_session *sess;
6223 struct iscsi_conn *conn;
6224
6225 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
6226 ha = ddb_entry->ha;
6227 cls_sess = ddb_entry->sess;
6228 sess = cls_sess->dd_data;
6229 cls_conn = ddb_entry->conn;
6230 conn = cls_conn->dd_data;
6231
6232 tddb->tpgt = sess->tpgt;
6233 tddb->port = conn->persistent_port;
6234 strncpy(tddb->iscsi_name, sess->targetname, ISCSI_NAME_SIZE);
6235 strncpy(tddb->ip_addr, conn->persistent_address, DDB_IPADDR_LEN);
6236}
6237
6238static void qla4xxx_convert_param_ddb(struct dev_db_entry *fw_ddb_entry,
1cb78d73
VC		 6239 struct ql4_tuple_ddb *tddb,
6240 uint8_t *flash_isid)
13483730
MC		 6241{
6242 uint16_t options = 0;
6243
6244 tddb->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
6245 memcpy(&tddb->iscsi_name[0], &fw_ddb_entry->iscsi_name[0],
6246 min(sizeof(tddb->iscsi_name), sizeof(fw_ddb_entry->iscsi_name)));
6247
6248 options = le16_to_cpu(fw_ddb_entry->options);
6249 if (options & DDB_OPT_IPV6_DEVICE)
6250 sprintf(tddb->ip_addr, "%pI6", fw_ddb_entry->ip_addr);
6251 else
6252 sprintf(tddb->ip_addr, "%pI4", fw_ddb_entry->ip_addr);
6253
6254 tddb->port = le16_to_cpu(fw_ddb_entry->port);
1cb78d73
VC		 6255
6256 if (flash_isid == NULL)
6257 memcpy(&tddb->isid[0], &fw_ddb_entry->isid[0],
6258 sizeof(tddb->isid));
6259 else
6260 memcpy(&tddb->isid[0], &flash_isid[0], sizeof(tddb->isid));
13483730
MC		 6261}
6262
6263static int qla4xxx_compare_tuple_ddb(struct scsi_qla_host *ha,
6264 struct ql4_tuple_ddb *old_tddb,
173269ef
MR		 6265 struct ql4_tuple_ddb *new_tddb,
6266 uint8_t is_isid_compare)
13483730
MC		 6267{
6268 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name))
6269 return QLA_ERROR;
6270
6271 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr))
6272 return QLA_ERROR;
6273
6274 if (old_tddb->port != new_tddb->port)
6275 return QLA_ERROR;
6276
173269ef 6277 /* For multi sessions, driver generates the ISID, so do not compare
59e13d48 6278 * ISID in reset path since it would be a comparison between the
173269ef
MR		 6279 * driver generated ISID and firmware generated ISID. This could
6280 * lead to adding duplicated DDBs in the list as driver generated
6281 * ISID would not match firmware generated ISID.
6282 */
6283 if (is_isid_compare) {
6284 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: old ISID [%02x%02x%02x"
6285 "%02x%02x%02x] New ISID [%02x%02x%02x%02x%02x%02x]\n",
6286 __func__, old_tddb->isid[5], old_tddb->isid[4],
6287 old_tddb->isid[3], old_tddb->isid[2], old_tddb->isid[1],
6288 old_tddb->isid[0], new_tddb->isid[5], new_tddb->isid[4],
6289 new_tddb->isid[3], new_tddb->isid[2], new_tddb->isid[1],
6290 new_tddb->isid[0]));
6291
6292 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0],
6293 sizeof(old_tddb->isid)))
6294 return QLA_ERROR;
6295 }
6296
13483730
MC		 6297 DEBUG2(ql4_printk(KERN_INFO, ha,
6298 "Match Found, fw[%d,%d,%s,%s], [%d,%d,%s,%s]",
6299 old_tddb->port, old_tddb->tpgt, old_tddb->ip_addr,
6300 old_tddb->iscsi_name, new_tddb->port, new_tddb->tpgt,
6301 new_tddb->ip_addr, new_tddb->iscsi_name));
6302
6303 return QLA_SUCCESS;
6304}
6305
6306static int qla4xxx_is_session_exists(struct scsi_qla_host *ha,
ad8bd45e
MR		 6307 struct dev_db_entry *fw_ddb_entry,
6308 uint32_t *index)
13483730
MC		 6309{
6310 struct ddb_entry *ddb_entry;
6311 struct ql4_tuple_ddb *fw_tddb = NULL;
6312 struct ql4_tuple_ddb *tmp_tddb = NULL;
6313 int idx;
6314 int ret = QLA_ERROR;
6315
6316 fw_tddb = vzalloc(sizeof(*fw_tddb));
6317 if (!fw_tddb) {
6318 DEBUG2(ql4_printk(KERN_WARNING, ha,
6319 "Memory Allocation failed.\n"));
6320 ret = QLA_SUCCESS;
6321 goto exit_check;
6322 }
6323
6324 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
6325 if (!tmp_tddb) {
6326 DEBUG2(ql4_printk(KERN_WARNING, ha,
6327 "Memory Allocation failed.\n"));
6328 ret = QLA_SUCCESS;
6329 goto exit_check;
6330 }
6331
1cb78d73 6332 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL);
13483730
MC		 6333
6334 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
6335 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
6336 if (ddb_entry == NULL)
6337 continue;
6338
6339 qla4xxx_get_param_ddb(ddb_entry, tmp_tddb);
173269ef 6340 if (!qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, false)) {
13483730 6341 ret = QLA_SUCCESS; /* found */
ad8bd45e
MR		 6342 if (index != NULL)
6343 *index = idx;
13483730
MC		 6344 goto exit_check;
6345 }
6346 }
6347
6348exit_check:
6349 if (fw_tddb)
6350 vfree(fw_tddb);
6351 if (tmp_tddb)
6352 vfree(tmp_tddb);
6353 return ret;
6354}
6355
1cb78d73
VC		 6356/**
6357 * qla4xxx_check_existing_isid - check if target with same isid exist
6358 * in target list
6359 * @list_nt: list of target
6360 * @isid: isid to check
6361 *
6362 * This routine return QLA_SUCCESS if target with same isid exist
6363 **/
6364static int qla4xxx_check_existing_isid(struct list_head *list_nt, uint8_t *isid)
6365{
6366 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp;
6367 struct dev_db_entry *fw_ddb_entry;
6368
6369 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
6370 fw_ddb_entry = &nt_ddb_idx->fw_ddb;
6371
6372 if (memcmp(&fw_ddb_entry->isid[0], &isid[0],
6373 sizeof(nt_ddb_idx->fw_ddb.isid)) == 0) {
6374 return QLA_SUCCESS;
6375 }
6376 }
6377 return QLA_ERROR;
6378}
6379
6380/**
6381 * qla4xxx_update_isid - compare ddbs and updated isid
6382 * @ha: Pointer to host adapter structure.
6383 * @list_nt: list of nt target
6384 * @fw_ddb_entry: firmware ddb entry
6385 *
6386 * This routine update isid if ddbs have same iqn, same isid and
6387 * different IP addr.
6388 * Return QLA_SUCCESS if isid is updated.
6389 **/
6390static int qla4xxx_update_isid(struct scsi_qla_host *ha,
6391 struct list_head *list_nt,
6392 struct dev_db_entry *fw_ddb_entry)
6393{
6394 uint8_t base_value, i;
6395
6396 base_value = fw_ddb_entry->isid[1] & 0x1f;
6397 for (i = 0; i < 8; i++) {
6398 fw_ddb_entry->isid[1] = (base_value | (i << 5));
6399 if (qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid))
6400 break;
6401 }
6402
6403 if (!qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid))
6404 return QLA_ERROR;
6405
6406 return QLA_SUCCESS;
6407}
6408
6409/**
6410 * qla4xxx_should_update_isid - check if isid need to update
6411 * @ha: Pointer to host adapter structure.
6412 * @old_tddb: ddb tuple
6413 * @new_tddb: ddb tuple
6414 *
6415 * Return QLA_SUCCESS if different IP, different PORT, same iqn,
6416 * same isid
6417 **/
6418static int qla4xxx_should_update_isid(struct scsi_qla_host *ha,
6419 struct ql4_tuple_ddb *old_tddb,
6420 struct ql4_tuple_ddb *new_tddb)
6421{
6422 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr) == 0) {
6423 /* Same ip */
6424 if (old_tddb->port == new_tddb->port)
6425 return QLA_ERROR;
6426 }
6427
6428 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name))
6429 /* different iqn */
6430 return QLA_ERROR;
6431
6432 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0],
6433 sizeof(old_tddb->isid)))
6434 /* different isid */
6435 return QLA_ERROR;
6436
6437 return QLA_SUCCESS;
6438}
6439
6440/**
6441 * qla4xxx_is_flash_ddb_exists - check if fw_ddb_entry already exists in list_nt
6442 * @ha: Pointer to host adapter structure.
6443 * @list_nt: list of nt target.
6444 * @fw_ddb_entry: firmware ddb entry.
6445 *
6446 * This routine check if fw_ddb_entry already exists in list_nt to avoid
6447 * duplicate ddb in list_nt.
6448 * Return QLA_SUCCESS if duplicate ddb exit in list_nl.
6449 * Note: This function also update isid of DDB if required.
6450 **/
6451
13483730
MC		 6452static int qla4xxx_is_flash_ddb_exists(struct scsi_qla_host *ha,
6453 struct list_head *list_nt,
6454 struct dev_db_entry *fw_ddb_entry)
6455{
6456 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp;
6457 struct ql4_tuple_ddb *fw_tddb = NULL;
6458 struct ql4_tuple_ddb *tmp_tddb = NULL;
1cb78d73 6459 int rval, ret = QLA_ERROR;
13483730
MC		 6460
6461 fw_tddb = vzalloc(sizeof(*fw_tddb));
6462 if (!fw_tddb) {
6463 DEBUG2(ql4_printk(KERN_WARNING, ha,
6464 "Memory Allocation failed.\n"));
6465 ret = QLA_SUCCESS;
6466 goto exit_check;
6467 }
6468
6469 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
6470 if (!tmp_tddb) {
6471 DEBUG2(ql4_printk(KERN_WARNING, ha,
6472 "Memory Allocation failed.\n"));
6473 ret = QLA_SUCCESS;
6474 goto exit_check;
6475 }
6476
1cb78d73 6477 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL);
13483730
MC		 6478
6479 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
1cb78d73
VC		 6480 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb,
6481 nt_ddb_idx->flash_isid);
6482 ret = qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, true);
6483 /* found duplicate ddb */
6484 if (ret == QLA_SUCCESS)
6485 goto exit_check;
6486 }
6487
6488 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
6489 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb, NULL);
6490
6491 ret = qla4xxx_should_update_isid(ha, tmp_tddb, fw_tddb);
6492 if (ret == QLA_SUCCESS) {
6493 rval = qla4xxx_update_isid(ha, list_nt, fw_ddb_entry);
6494 if (rval == QLA_SUCCESS)
6495 ret = QLA_ERROR;
6496 else
6497 ret = QLA_SUCCESS;
6498
13483730
MC		 6499 goto exit_check;
6500 }
6501 }
6502
6503exit_check:
6504 if (fw_tddb)
6505 vfree(fw_tddb);
6506 if (tmp_tddb)
6507 vfree(tmp_tddb);
6508 return ret;
6509}
6510
4a4bc2e9 6511static void qla4xxx_free_ddb_list(struct list_head *list_ddb)
13483730 6512{
4a4bc2e9 6513 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
13483730 6514
4a4bc2e9
LC		 6515 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
6516 list_del_init(&ddb_idx->list);
6517 vfree(ddb_idx);
13483730 6518 }
13483730
MC		 6519}
6520
6521static struct iscsi_endpoint *qla4xxx_get_ep_fwdb(struct scsi_qla_host *ha,
6522 struct dev_db_entry *fw_ddb_entry)
6523{
6524 struct iscsi_endpoint *ep;
6525 struct sockaddr_in *addr;
6526 struct sockaddr_in6 *addr6;
3dd4849c
MR		 6527 struct sockaddr *t_addr;
6528 struct sockaddr_storage *dst_addr;
13483730
MC		 6529 char *ip;
6530
6531 /* TODO: need to destroy on unload iscsi_endpoint*/
6532 dst_addr = vmalloc(sizeof(*dst_addr));
6533 if (!dst_addr)
6534 return NULL;
6535
6536 if (fw_ddb_entry->options & DDB_OPT_IPV6_DEVICE) {
3dd4849c
MR		 6537 t_addr = (struct sockaddr *)dst_addr;
6538 t_addr->sa_family = AF_INET6;
13483730
MC		 6539 addr6 = (struct sockaddr_in6 *)dst_addr;
6540 ip = (char *)&addr6->sin6_addr;
6541 memcpy(ip, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN);
6542 addr6->sin6_port = htons(le16_to_cpu(fw_ddb_entry->port));
6543
6544 } else {
3dd4849c
MR		 6545 t_addr = (struct sockaddr *)dst_addr;
6546 t_addr->sa_family = AF_INET;
13483730
MC		 6547 addr = (struct sockaddr_in *)dst_addr;
6548 ip = (char *)&addr->sin_addr;
6549 memcpy(ip, fw_ddb_entry->ip_addr, IP_ADDR_LEN);
6550 addr->sin_port = htons(le16_to_cpu(fw_ddb_entry->port));
6551 }
6552
3dd4849c 6553 ep = qla4xxx_ep_connect(ha->host, (struct sockaddr *)dst_addr, 0);
13483730
MC		 6554 vfree(dst_addr);
6555 return ep;
6556}
6557
6558static int qla4xxx_verify_boot_idx(struct scsi_qla_host *ha, uint16_t idx)
6559{
6560 if (ql4xdisablesysfsboot)
6561 return QLA_SUCCESS;
6562 if (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx)
6563 return QLA_ERROR;
6564 return QLA_SUCCESS;
6565}
6566
6567static void qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha,
1dc8ed5d
MR		 6568 struct ddb_entry *ddb_entry,
6569 uint16_t idx)
13483730 6570{
c28eaaca
NJ		 6571 uint16_t def_timeout;
6572
13483730
MC		 6573 ddb_entry->ddb_type = FLASH_DDB;
6574 ddb_entry->fw_ddb_index = INVALID_ENTRY;
6575 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE;
6576 ddb_entry->ha = ha;
6577 ddb_entry->unblock_sess = qla4xxx_unblock_flash_ddb;
6578 ddb_entry->ddb_change = qla4xxx_flash_ddb_change;
946ac571 6579 ddb_entry->chap_tbl_idx = INVALID_ENTRY;
13483730
MC		 6580
6581 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY);
6582 atomic_set(&ddb_entry->relogin_timer, 0);
6583 atomic_set(&ddb_entry->relogin_retry_count, 0);
c28eaaca 6584 def_timeout = le16_to_cpu(ddb_entry->fw_ddb_entry.def_timeout);
13483730 6585 ddb_entry->default_relogin_timeout =
c28eaaca
NJ		 6586 (def_timeout > LOGIN_TOV) && (def_timeout < LOGIN_TOV * 10) ?
6587 def_timeout : LOGIN_TOV;
13483730
MC		 6588 ddb_entry->default_time2wait =
6589 le16_to_cpu(ddb_entry->fw_ddb_entry.iscsi_def_time2wait);
1dc8ed5d
MR		 6590
6591 if (ql4xdisablesysfsboot &&
6592 (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx))
6593 set_bit(DF_BOOT_TGT, &ddb_entry->flags);
13483730
MC		 6594}
6595
6596static void qla4xxx_wait_for_ip_configuration(struct scsi_qla_host *ha)
6597{
6598 uint32_t idx = 0;
6599 uint32_t ip_idx[IP_ADDR_COUNT] = {0, 1, 2, 3}; /* 4 IP interfaces */
6600 uint32_t sts[MBOX_REG_COUNT];
6601 uint32_t ip_state;
6602 unsigned long wtime;
6603 int ret;
6604
6605 wtime = jiffies + (HZ * IP_CONFIG_TOV);
6606 do {
6607 for (idx = 0; idx < IP_ADDR_COUNT; idx++) {
6608 if (ip_idx[idx] == -1)
6609 continue;
6610
6611 ret = qla4xxx_get_ip_state(ha, 0, ip_idx[idx], sts);
6612
6613 if (ret == QLA_ERROR) {
6614 ip_idx[idx] = -1;
6615 continue;
6616 }
6617
6618 ip_state = (sts[1] & IP_STATE_MASK) >> IP_STATE_SHIFT;
6619
6620 DEBUG2(ql4_printk(KERN_INFO, ha,
6621 "Waiting for IP state for idx = %d, state = 0x%x\n",
6622 ip_idx[idx], ip_state));
6623 if (ip_state == IP_ADDRSTATE_UNCONFIGURED ||
6624 ip_state == IP_ADDRSTATE_INVALID ||
6625 ip_state == IP_ADDRSTATE_PREFERRED ||
6626 ip_state == IP_ADDRSTATE_DEPRICATED ||
6627 ip_state == IP_ADDRSTATE_DISABLING)
6628 ip_idx[idx] = -1;
13483730
MC		 6629 }
6630
6631 /* Break if all IP states checked */
6632 if ((ip_idx[0] == -1) &&
6633 (ip_idx[1] == -1) &&
6634 (ip_idx[2] == -1) &&
6635 (ip_idx[3] == -1))
6636 break;
6637 schedule_timeout_uninterruptible(HZ);
6638 } while (time_after(wtime, jiffies));
6639}
6640
ad8bd45e
MR		 6641static int qla4xxx_cmp_fw_stentry(struct dev_db_entry *fw_ddb_entry,
6642 struct dev_db_entry *flash_ddb_entry)
6643{
6644 uint16_t options = 0;
6645 size_t ip_len = IP_ADDR_LEN;
6646
6647 options = le16_to_cpu(fw_ddb_entry->options);
6648 if (options & DDB_OPT_IPV6_DEVICE)
6649 ip_len = IPv6_ADDR_LEN;
6650
6651 if (memcmp(fw_ddb_entry->ip_addr, flash_ddb_entry->ip_addr, ip_len))
6652 return QLA_ERROR;
6653
6654 if (memcmp(&fw_ddb_entry->isid[0], &flash_ddb_entry->isid[0],
6655 sizeof(fw_ddb_entry->isid)))
6656 return QLA_ERROR;
6657
6658 if (memcmp(&fw_ddb_entry->port, &flash_ddb_entry->port,
6659 sizeof(fw_ddb_entry->port)))
6660 return QLA_ERROR;
6661
6662 return QLA_SUCCESS;
6663}
6664
6665static int qla4xxx_find_flash_st_idx(struct scsi_qla_host *ha,
6666 struct dev_db_entry *fw_ddb_entry,
6667 uint32_t fw_idx, uint32_t *flash_index)
6668{
6669 struct dev_db_entry *flash_ddb_entry;
6670 dma_addr_t flash_ddb_entry_dma;
6671 uint32_t idx = 0;
6672 int max_ddbs;
6673 int ret = QLA_ERROR, status;
6674
6675 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
6676 MAX_DEV_DB_ENTRIES;
6677
6678 flash_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
6679 &flash_ddb_entry_dma);
6680 if (flash_ddb_entry == NULL || fw_ddb_entry == NULL) {
6681 ql4_printk(KERN_ERR, ha, "Out of memory\n");
6682 goto exit_find_st_idx;
6683 }
6684
6685 status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry,
6686 flash_ddb_entry_dma, fw_idx);
6687 if (status == QLA_SUCCESS) {
6688 status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry);
6689 if (status == QLA_SUCCESS) {
6690 *flash_index = fw_idx;
6691 ret = QLA_SUCCESS;
6692 goto exit_find_st_idx;
6693 }
6694 }
6695
6696 for (idx = 0; idx < max_ddbs; idx++) {
6697 status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry,
6698 flash_ddb_entry_dma, idx);
6699 if (status == QLA_ERROR)
6700 continue;
6701
6702 status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry);
6703 if (status == QLA_SUCCESS) {
6704 *flash_index = idx;
6705 ret = QLA_SUCCESS;
6706 goto exit_find_st_idx;
6707 }
6708 }
6709
6710 if (idx == max_ddbs)
6711 ql4_printk(KERN_ERR, ha, "Failed to find ST [%d] in flash\n",
6712 fw_idx);
6713
6714exit_find_st_idx:
6715 if (flash_ddb_entry)
6716 dma_pool_free(ha->fw_ddb_dma_pool, flash_ddb_entry,
6717 flash_ddb_entry_dma);
6718
6719 return ret;
6720}
6721
4a4bc2e9
LC		 6722static void qla4xxx_build_st_list(struct scsi_qla_host *ha,
6723 struct list_head *list_st)
13483730 6724{
4a4bc2e9 6725 struct qla_ddb_index *st_ddb_idx;
13483730 6726 int max_ddbs;
4a4bc2e9
LC		 6727 int fw_idx_size;
6728 struct dev_db_entry *fw_ddb_entry;
6729 dma_addr_t fw_ddb_dma;
13483730
MC		 6730 int ret;
6731 uint32_t idx = 0, next_idx = 0;
6732 uint32_t state = 0, conn_err = 0;
ad8bd45e 6733 uint32_t flash_index = -1;
4a4bc2e9 6734 uint16_t conn_id = 0;
13483730
MC		 6735
6736 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
6737 &fw_ddb_dma);
6738 if (fw_ddb_entry == NULL) {
6739 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
4a4bc2e9 6740 goto exit_st_list;
13483730
MC		 6741 }
6742
4a4bc2e9
LC		 6743 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
6744 MAX_DEV_DB_ENTRIES;
13483730
MC		 6745 fw_idx_size = sizeof(struct qla_ddb_index);
6746
6747 for (idx = 0; idx < max_ddbs; idx = next_idx) {
4a4bc2e9
LC		 6748 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
6749 NULL, &next_idx, &state,
6750 &conn_err, NULL, &conn_id);
13483730
MC		 6751 if (ret == QLA_ERROR)
6752 break;
6753
981c982c
LC		 6754 /* Ignore DDB if invalid state (unassigned) */
6755 if (state == DDB_DS_UNASSIGNED)
6756 goto continue_next_st;
6757
13483730
MC		 6758 /* Check if ST, add to the list_st */
6759 if (strlen((char *) fw_ddb_entry->iscsi_name) != 0)
6760 goto continue_next_st;
6761
6762 st_ddb_idx = vzalloc(fw_idx_size);
6763 if (!st_ddb_idx)
6764 break;
6765
ad8bd45e
MR		 6766 ret = qla4xxx_find_flash_st_idx(ha, fw_ddb_entry, idx,
6767 &flash_index);
6768 if (ret == QLA_ERROR) {
6769 ql4_printk(KERN_ERR, ha,
6770 "No flash entry for ST at idx [%d]\n", idx);
6771 st_ddb_idx->flash_ddb_idx = idx;
6772 } else {
6773 ql4_printk(KERN_INFO, ha,
6774 "ST at idx [%d] is stored at flash [%d]\n",
6775 idx, flash_index);
6776 st_ddb_idx->flash_ddb_idx = flash_index;
6777 }
6778
13483730
MC		 6779 st_ddb_idx->fw_ddb_idx = idx;
6780
4a4bc2e9 6781 list_add_tail(&st_ddb_idx->list, list_st);
13483730
MC		 6782continue_next_st:
6783 if (next_idx == 0)
6784 break;
6785 }
6786
4a4bc2e9
LC		 6787exit_st_list:
6788 if (fw_ddb_entry)
6789 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
6790}
6791
6792/**
6793 * qla4xxx_remove_failed_ddb - Remove inactive or failed ddb from list
6794 * @ha: pointer to adapter structure
6795 * @list_ddb: List from which failed ddb to be removed
6796 *
6797 * Iterate over the list of DDBs and find and remove DDBs that are either in
6798 * no connection active state or failed state
6799 **/
6800static void qla4xxx_remove_failed_ddb(struct scsi_qla_host *ha,
6801 struct list_head *list_ddb)
6802{
6803 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
6804 uint32_t next_idx = 0;
6805 uint32_t state = 0, conn_err = 0;
6806 int ret;
6807
6808 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
6809 ret = qla4xxx_get_fwddb_entry(ha, ddb_idx->fw_ddb_idx,
6810 NULL, 0, NULL, &next_idx, &state,
6811 &conn_err, NULL, NULL);
6812 if (ret == QLA_ERROR)
6813 continue;
6814
6815 if (state == DDB_DS_NO_CONNECTION_ACTIVE ||
6816 state == DDB_DS_SESSION_FAILED) {
6817 list_del_init(&ddb_idx->list);
6818 vfree(ddb_idx);
6819 }
6820 }
6821}
6822
ad8bd45e
MR		 6823static void qla4xxx_update_sess_disc_idx(struct scsi_qla_host *ha,
6824 struct ddb_entry *ddb_entry,
6825 struct dev_db_entry *fw_ddb_entry)
6826{
6827 struct iscsi_cls_session *cls_sess;
6828 struct iscsi_session *sess;
6829 uint32_t max_ddbs = 0;
6830 uint16_t ddb_link = -1;
6831
6832 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
6833 MAX_DEV_DB_ENTRIES;
6834
6835 cls_sess = ddb_entry->sess;
6836 sess = cls_sess->dd_data;
6837
6838 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
6839 if (ddb_link < max_ddbs)
6840 sess->discovery_parent_idx = ddb_link;
6841 else
6842 sess->discovery_parent_idx = DDB_NO_LINK;
6843}
6844
4a4bc2e9
LC		 6845static int qla4xxx_sess_conn_setup(struct scsi_qla_host *ha,
6846 struct dev_db_entry *fw_ddb_entry,
1dc8ed5d 6847 int is_reset, uint16_t idx)
4a4bc2e9
LC		 6848{
6849 struct iscsi_cls_session *cls_sess;
6850 struct iscsi_session *sess;
6851 struct iscsi_cls_conn *cls_conn;
6852 struct iscsi_endpoint *ep;
6853 uint16_t cmds_max = 32;
6854 uint16_t conn_id = 0;
6855 uint32_t initial_cmdsn = 0;
6856 int ret = QLA_SUCCESS;
6857
6858 struct ddb_entry *ddb_entry = NULL;
6859
6860 /* Create session object, with INVALID_ENTRY,
6861 * the targer_id would get set when we issue the login
13483730 6862 */
4a4bc2e9
LC		 6863 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, ha->host,
6864 cmds_max, sizeof(struct ddb_entry),
6865 sizeof(struct ql4_task_data),
6866 initial_cmdsn, INVALID_ENTRY);
6867 if (!cls_sess) {
6868 ret = QLA_ERROR;
6869 goto exit_setup;
6870 }
13483730 6871
4a4bc2e9
LC		 6872 /*
6873 * so calling module_put function to decrement the
6874 * reference count.
6875 **/
6876 module_put(qla4xxx_iscsi_transport.owner);
6877 sess = cls_sess->dd_data;
6878 ddb_entry = sess->dd_data;
6879 ddb_entry->sess = cls_sess;
6880
6881 cls_sess->recovery_tmo = ql4xsess_recovery_tmo;
6882 memcpy(&ddb_entry->fw_ddb_entry, fw_ddb_entry,
6883 sizeof(struct dev_db_entry));
6884
1dc8ed5d 6885 qla4xxx_setup_flash_ddb_entry(ha, ddb_entry, idx);
4a4bc2e9
LC		 6886
6887 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), conn_id);
6888
6889 if (!cls_conn) {
6890 ret = QLA_ERROR;
6891 goto exit_setup;
13483730
MC		 6892 }
6893
4a4bc2e9 6894 ddb_entry->conn = cls_conn;
13483730 6895
4a4bc2e9
LC		 6896 /* Setup ep, for displaying attributes in sysfs */
6897 ep = qla4xxx_get_ep_fwdb(ha, fw_ddb_entry);
6898 if (ep) {
6899 ep->conn = cls_conn;
6900 cls_conn->ep = ep;
6901 } else {
6902 DEBUG2(ql4_printk(KERN_ERR, ha, "Unable to get ep\n"));
6903 ret = QLA_ERROR;
6904 goto exit_setup;
6905 }
13483730 6906
4a4bc2e9
LC		 6907 /* Update sess/conn params */
6908 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn);
ad8bd45e 6909 qla4xxx_update_sess_disc_idx(ha, ddb_entry, fw_ddb_entry);
13483730 6910
4a4bc2e9
LC		 6911 if (is_reset == RESET_ADAPTER) {
6912 iscsi_block_session(cls_sess);
6913 /* Use the relogin path to discover new devices
6914 * by short-circuting the logic of setting
6915 * timer to relogin - instead set the flags
6916 * to initiate login right away.
6917 */
6918 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
6919 set_bit(DF_RELOGIN, &ddb_entry->flags);
6920 }
6921
6922exit_setup:
6923 return ret;
6924}
6925
ad8bd45e
MR		 6926static void qla4xxx_update_fw_ddb_link(struct scsi_qla_host *ha,
6927 struct list_head *list_ddb,
6928 struct dev_db_entry *fw_ddb_entry)
6929{
6930 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
6931 uint16_t ddb_link;
6932
6933 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
6934
6935 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
6936 if (ddb_idx->fw_ddb_idx == ddb_link) {
6937 DEBUG2(ql4_printk(KERN_INFO, ha,
6938 "Updating NT parent idx from [%d] to [%d]\n",
6939 ddb_link, ddb_idx->flash_ddb_idx));
6940 fw_ddb_entry->ddb_link =
6941 cpu_to_le16(ddb_idx->flash_ddb_idx);
6942 return;
6943 }
6944 }
6945}
6946
4a4bc2e9 6947static void qla4xxx_build_nt_list(struct scsi_qla_host *ha,
ad8bd45e
MR		 6948 struct list_head *list_nt,
6949 struct list_head *list_st,
6950 int is_reset)
4a4bc2e9
LC		 6951{
6952 struct dev_db_entry *fw_ddb_entry;
ad8bd45e 6953 struct ddb_entry *ddb_entry = NULL;
4a4bc2e9
LC		 6954 dma_addr_t fw_ddb_dma;
6955 int max_ddbs;
6956 int fw_idx_size;
6957 int ret;
6958 uint32_t idx = 0, next_idx = 0;
6959 uint32_t state = 0, conn_err = 0;
ad8bd45e 6960 uint32_t ddb_idx = -1;
4a4bc2e9 6961 uint16_t conn_id = 0;
ad8bd45e 6962 uint16_t ddb_link = -1;
4a4bc2e9
LC		 6963 struct qla_ddb_index *nt_ddb_idx;
6964
6965 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
6966 &fw_ddb_dma);
6967 if (fw_ddb_entry == NULL) {
6968 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
6969 goto exit_nt_list;
13483730 6970 }
4a4bc2e9
LC		 6971 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
6972 MAX_DEV_DB_ENTRIES;
6973 fw_idx_size = sizeof(struct qla_ddb_index);
13483730
MC		 6974
6975 for (idx = 0; idx < max_ddbs; idx = next_idx) {
4a4bc2e9
LC		 6976 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
6977 NULL, &next_idx, &state,
6978 &conn_err, NULL, &conn_id);
13483730
MC		 6979 if (ret == QLA_ERROR)
6980 break;
6981
6982 if (qla4xxx_verify_boot_idx(ha, idx) != QLA_SUCCESS)
6983 goto continue_next_nt;
6984
6985 /* Check if NT, then add to list it */
6986 if (strlen((char *) fw_ddb_entry->iscsi_name) == 0)
6987 goto continue_next_nt;
6988
ad8bd45e
MR		 6989 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
6990 if (ddb_link < max_ddbs)
6991 qla4xxx_update_fw_ddb_link(ha, list_st, fw_ddb_entry);
6992
4a4bc2e9 6993 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE ||
ad8bd45e
MR		 6994 state == DDB_DS_SESSION_FAILED) &&
6995 (is_reset == INIT_ADAPTER))
4a4bc2e9 6996 goto continue_next_nt;
13483730 6997
4a4bc2e9
LC		 6998 DEBUG2(ql4_printk(KERN_INFO, ha,
6999 "Adding DDB to session = 0x%x\n", idx));
ad8bd45e 7000
4a4bc2e9
LC		 7001 if (is_reset == INIT_ADAPTER) {
7002 nt_ddb_idx = vmalloc(fw_idx_size);
7003 if (!nt_ddb_idx)
7004 break;
13483730 7005
4a4bc2e9 7006 nt_ddb_idx->fw_ddb_idx = idx;
13483730 7007
1cb78d73
VC		 7008 /* Copy original isid as it may get updated in function
7009 * qla4xxx_update_isid(). We need original isid in
7010 * function qla4xxx_compare_tuple_ddb to find duplicate
7011 * target */
7012 memcpy(&nt_ddb_idx->flash_isid[0],
7013 &fw_ddb_entry->isid[0],
7014 sizeof(nt_ddb_idx->flash_isid));
7015
7016 ret = qla4xxx_is_flash_ddb_exists(ha, list_nt,
7017 fw_ddb_entry);
7018 if (ret == QLA_SUCCESS) {
7019 /* free nt_ddb_idx and do not add to list_nt */
4a4bc2e9
LC		 7020 vfree(nt_ddb_idx);
7021 goto continue_next_nt;
13483730 7022 }
1cb78d73
VC		 7023
7024 /* Copy updated isid */
7025 memcpy(&nt_ddb_idx->fw_ddb, fw_ddb_entry,
7026 sizeof(struct dev_db_entry));
7027
4a4bc2e9
LC		 7028 list_add_tail(&nt_ddb_idx->list, list_nt);
7029 } else if (is_reset == RESET_ADAPTER) {
ad8bd45e
MR		 7030 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry,
7031 &ddb_idx);
7032 if (ret == QLA_SUCCESS) {
7033 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha,
7034 ddb_idx);
7035 if (ddb_entry != NULL)
7036 qla4xxx_update_sess_disc_idx(ha,
7037 ddb_entry,
7038 fw_ddb_entry);
4a4bc2e9 7039 goto continue_next_nt;
ad8bd45e 7040 }
13483730 7041 }
4a4bc2e9 7042
1dc8ed5d 7043 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, is_reset, idx);
4a4bc2e9
LC		 7044 if (ret == QLA_ERROR)
7045 goto exit_nt_list;
7046
13483730
MC		 7047continue_next_nt:
7048 if (next_idx == 0)
7049 break;
7050 }
4a4bc2e9
LC		 7051
7052exit_nt_list:
13483730
MC		 7053 if (fw_ddb_entry)
7054 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
4a4bc2e9
LC		 7055}
7056
1e9e2be3 7057static void qla4xxx_build_new_nt_list(struct scsi_qla_host *ha,
ad8bd45e
MR		 7058 struct list_head *list_nt,
7059 uint16_t target_id)
1e9e2be3
AC		 7060{
7061 struct dev_db_entry *fw_ddb_entry;
7062 dma_addr_t fw_ddb_dma;
7063 int max_ddbs;
7064 int fw_idx_size;
7065 int ret;
7066 uint32_t idx = 0, next_idx = 0;
7067 uint32_t state = 0, conn_err = 0;
7068 uint16_t conn_id = 0;
7069 struct qla_ddb_index *nt_ddb_idx;
7070
7071 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
7072 &fw_ddb_dma);
7073 if (fw_ddb_entry == NULL) {
7074 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
7075 goto exit_new_nt_list;
7076 }
7077 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
7078 MAX_DEV_DB_ENTRIES;
7079 fw_idx_size = sizeof(struct qla_ddb_index);
7080
7081 for (idx = 0; idx < max_ddbs; idx = next_idx) {
7082 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
7083 NULL, &next_idx, &state,
7084 &conn_err, NULL, &conn_id);
7085 if (ret == QLA_ERROR)
7086 break;
7087
7088 /* Check if NT, then add it to list */
7089 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0)
7090 goto continue_next_new_nt;
7091
7092 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE))
7093 goto continue_next_new_nt;
7094
7095 DEBUG2(ql4_printk(KERN_INFO, ha,
7096 "Adding DDB to session = 0x%x\n", idx));
7097
7098 nt_ddb_idx = vmalloc(fw_idx_size);
7099 if (!nt_ddb_idx)
7100 break;
7101
7102 nt_ddb_idx->fw_ddb_idx = idx;
7103
ad8bd45e 7104 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL);
1e9e2be3
AC		 7105 if (ret == QLA_SUCCESS) {
7106 /* free nt_ddb_idx and do not add to list_nt */
7107 vfree(nt_ddb_idx);
7108 goto continue_next_new_nt;
7109 }
7110
ad8bd45e
MR		 7111 if (target_id < max_ddbs)
7112 fw_ddb_entry->ddb_link = cpu_to_le16(target_id);
7113
1e9e2be3
AC		 7114 list_add_tail(&nt_ddb_idx->list, list_nt);
7115
7116 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER,
7117 idx);
7118 if (ret == QLA_ERROR)
7119 goto exit_new_nt_list;
7120
7121continue_next_new_nt:
7122 if (next_idx == 0)
7123 break;
7124 }
7125
7126exit_new_nt_list:
7127 if (fw_ddb_entry)
7128 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
7129}
7130
4a4bc2e9 7131/**
1e9e2be3
AC		 7132 * qla4xxx_sysfs_ddb_is_non_persistent - check for non-persistence of ddb entry
7133 * @dev: dev associated with the sysfs entry
7134 * @data: pointer to flashnode session object
4a4bc2e9 7135 *
1e9e2be3
AC		 7136 * Returns:
7137 * 1: if flashnode entry is non-persistent
7138 * 0: if flashnode entry is persistent
4a4bc2e9 7139 **/
1e9e2be3 7140static int qla4xxx_sysfs_ddb_is_non_persistent(struct device *dev, void *data)
4a4bc2e9 7141{
1e9e2be3 7142 struct iscsi_bus_flash_session *fnode_sess;
4a4bc2e9 7143
1e9e2be3
AC		 7144 if (!iscsi_flashnode_bus_match(dev, NULL))
7145 return 0;
4a4bc2e9 7146
1e9e2be3 7147 fnode_sess = iscsi_dev_to_flash_session(dev);
4a4bc2e9 7148
1e9e2be3
AC		 7149 return (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT);
7150}
4a4bc2e9 7151
1e9e2be3
AC		 7152/**
7153 * qla4xxx_sysfs_ddb_tgt_create - Create sysfs entry for target
7154 * @ha: pointer to host
7155 * @fw_ddb_entry: flash ddb data
7156 * @idx: target index
7157 * @user: if set then this call is made from userland else from kernel
7158 *
7159 * Returns:
7160 * On sucess: QLA_SUCCESS
7161 * On failure: QLA_ERROR
7162 *
7163 * This create separate sysfs entries for session and connection attributes of
7164 * the given fw ddb entry.
7165 * If this is invoked as a result of a userspace call then the entry is marked
7166 * as nonpersistent using flash_state field.
7167 **/
28e02f1a
VC		 7168static int qla4xxx_sysfs_ddb_tgt_create(struct scsi_qla_host *ha,
7169 struct dev_db_entry *fw_ddb_entry,
7170 uint16_t *idx, int user)
1e9e2be3
AC		 7171{
7172 struct iscsi_bus_flash_session *fnode_sess = NULL;
7173 struct iscsi_bus_flash_conn *fnode_conn = NULL;
7174 int rc = QLA_ERROR;
4a4bc2e9 7175
1e9e2be3
AC		 7176 fnode_sess = iscsi_create_flashnode_sess(ha->host, *idx,
7177 &qla4xxx_iscsi_transport, 0);
7178 if (!fnode_sess) {
7179 ql4_printk(KERN_ERR, ha,
7180 "%s: Unable to create session sysfs entry for flashnode %d of host%lu\n",
7181 __func__, *idx, ha->host_no);
7182 goto exit_tgt_create;
4a4bc2e9
LC		 7183 }
7184
1e9e2be3
AC		 7185 fnode_conn = iscsi_create_flashnode_conn(ha->host, fnode_sess,
7186 &qla4xxx_iscsi_transport, 0);
7187 if (!fnode_conn) {
7188 ql4_printk(KERN_ERR, ha,
7189 "%s: Unable to create conn sysfs entry for flashnode %d of host%lu\n",
7190 __func__, *idx, ha->host_no);
7191 goto free_sess;
7192 }
c28eaaca 7193
1e9e2be3
AC		 7194 if (user) {
7195 fnode_sess->flash_state = DEV_DB_NON_PERSISTENT;
7196 } else {
7197 fnode_sess->flash_state = DEV_DB_PERSISTENT;
4a4bc2e9 7198
1e9e2be3
AC		 7199 if (*idx == ha->pri_ddb_idx || *idx == ha->sec_ddb_idx)
7200 fnode_sess->is_boot_target = 1;
7201 else
7202 fnode_sess->is_boot_target = 0;
7203 }
f1f2e60e 7204
1e9e2be3
AC		 7205 rc = qla4xxx_copy_from_fwddb_param(fnode_sess, fnode_conn,
7206 fw_ddb_entry);
4a4bc2e9 7207
1e9e2be3
AC		 7208 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n",
7209 __func__, fnode_sess->dev.kobj.name);
4a4bc2e9 7210
1e9e2be3
AC		 7211 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n",
7212 __func__, fnode_conn->dev.kobj.name);
4a4bc2e9 7213
1e9e2be3 7214 return QLA_SUCCESS;
13483730 7215
1e9e2be3
AC		 7216free_sess:
7217 iscsi_destroy_flashnode_sess(fnode_sess);
7218
7219exit_tgt_create:
7220 return QLA_ERROR;
13483730
MC		 7221}
7222
1dc8ed5d 7223/**
1e9e2be3
AC		 7224 * qla4xxx_sysfs_ddb_add - Add new ddb entry in flash
7225 * @shost: pointer to host
7226 * @buf: type of ddb entry (ipv4/ipv6)
7227 * @len: length of buf
1dc8ed5d 7228 *
1e9e2be3
AC		 7229 * This creates new ddb entry in the flash by finding first free index and
7230 * storing default ddb there. And then create sysfs entry for the new ddb entry.
1dc8ed5d 7231 **/
1e9e2be3
AC		 7232static int qla4xxx_sysfs_ddb_add(struct Scsi_Host *shost, const char *buf,
7233 int len)
1dc8ed5d 7234{
1e9e2be3 7235 struct scsi_qla_host *ha = to_qla_host(shost);
1dc8ed5d
MR		 7236 struct dev_db_entry *fw_ddb_entry = NULL;
7237 dma_addr_t fw_ddb_entry_dma;
1e9e2be3
AC		 7238 struct device *dev;
7239 uint16_t idx = 0;
7240 uint16_t max_ddbs = 0;
7241 uint32_t options = 0;
7242 uint32_t rval = QLA_ERROR;
7243
c962c18b
AC		 7244 if (strncasecmp(PORTAL_TYPE_IPV4, buf, 4) &&
7245 strncasecmp(PORTAL_TYPE_IPV6, buf, 4)) {
1e9e2be3
AC		 7246 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Invalid portal type\n",
7247 __func__));
7248 goto exit_ddb_add;
7249 }
1dc8ed5d 7250
a957a7d7 7251 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES :
1dc8ed5d
MR		 7252 MAX_DEV_DB_ENTRIES;
7253
7254 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7255 &fw_ddb_entry_dma, GFP_KERNEL);
7256 if (!fw_ddb_entry) {
1e9e2be3
AC		 7257 DEBUG2(ql4_printk(KERN_ERR, ha,
7258 "%s: Unable to allocate dma buffer\n",
7259 __func__));
7260 goto exit_ddb_add;
1dc8ed5d
MR		 7261 }
7262
1e9e2be3
AC		 7263 dev = iscsi_find_flashnode_sess(ha->host, NULL,
7264 qla4xxx_sysfs_ddb_is_non_persistent);
7265 if (dev) {
7266 ql4_printk(KERN_ERR, ha,
7267 "%s: A non-persistent entry %s found\n",
7268 __func__, dev->kobj.name);
8526cb11 7269 put_device(dev);
1e9e2be3
AC		 7270 goto exit_ddb_add;
7271 }
1dc8ed5d 7272
99937574
AC		 7273 /* Index 0 and 1 are reserved for boot target entries */
7274 for (idx = 2; idx < max_ddbs; idx++) {
1e9e2be3
AC		 7275 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry,
7276 fw_ddb_entry_dma, idx))
7277 break;
7278 }
1dc8ed5d 7279
1e9e2be3
AC		 7280 if (idx == max_ddbs)
7281 goto exit_ddb_add;
1dc8ed5d 7282
1e9e2be3
AC		 7283 if (!strncasecmp("ipv6", buf, 4))
7284 options |= IPV6_DEFAULT_DDB_ENTRY;
1dc8ed5d 7285
1e9e2be3
AC		 7286 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
7287 if (rval == QLA_ERROR)
7288 goto exit_ddb_add;
1dc8ed5d 7289
1e9e2be3 7290 rval = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 1);
1dc8ed5d 7291
1e9e2be3 7292exit_ddb_add:
1dc8ed5d
MR		 7293 if (fw_ddb_entry)
7294 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7295 fw_ddb_entry, fw_ddb_entry_dma);
1e9e2be3
AC		 7296 if (rval == QLA_SUCCESS)
7297 return idx;
7298 else
7299 return -EIO;
1dc8ed5d
MR		 7300}
7301
afaf5a2d 7302/**
1e9e2be3
AC		 7303 * qla4xxx_sysfs_ddb_apply - write the target ddb contents to Flash
7304 * @fnode_sess: pointer to session attrs of flash ddb entry
7305 * @fnode_conn: pointer to connection attrs of flash ddb entry
afaf5a2d 7306 *
1e9e2be3
AC		 7307 * This writes the contents of target ddb buffer to Flash with a valid cookie
7308 * value in order to make the ddb entry persistent.
afaf5a2d 7309 **/
1e9e2be3
AC		 7310static int qla4xxx_sysfs_ddb_apply(struct iscsi_bus_flash_session *fnode_sess,
7311 struct iscsi_bus_flash_conn *fnode_conn)
afaf5a2d 7312{
1e9e2be3
AC		 7313 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7314 struct scsi_qla_host *ha = to_qla_host(shost);
7315 uint32_t dev_db_start_offset = FLASH_OFFSET_DB_INFO;
7316 struct dev_db_entry *fw_ddb_entry = NULL;
7317 dma_addr_t fw_ddb_entry_dma;
7318 uint32_t options = 0;
7319 int rval = 0;
afaf5a2d 7320
1e9e2be3
AC		 7321 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7322 &fw_ddb_entry_dma, GFP_KERNEL);
7323 if (!fw_ddb_entry) {
7324 DEBUG2(ql4_printk(KERN_ERR, ha,
7325 "%s: Unable to allocate dma buffer\n",
7326 __func__));
7327 rval = -ENOMEM;
7328 goto exit_ddb_apply;
7329 }
afaf5a2d 7330
c962c18b 7331 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
1e9e2be3
AC		 7332 options |= IPV6_DEFAULT_DDB_ENTRY;
7333
7334 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
7335 if (rval == QLA_ERROR)
7336 goto exit_ddb_apply;
7337
7338 dev_db_start_offset += (fnode_sess->target_id *
7339 sizeof(*fw_ddb_entry));
7340
7341 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry);
7342 fw_ddb_entry->cookie = DDB_VALID_COOKIE;
7343
7344 rval = qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset,
7345 sizeof(*fw_ddb_entry), FLASH_OPT_RMW_COMMIT);
7346
7347 if (rval == QLA_SUCCESS) {
7348 fnode_sess->flash_state = DEV_DB_PERSISTENT;
7349 ql4_printk(KERN_INFO, ha,
7350 "%s: flash node %u of host %lu written to flash\n",
7351 __func__, fnode_sess->target_id, ha->host_no);
7352 } else {
7353 rval = -EIO;
7354 ql4_printk(KERN_ERR, ha,
7355 "%s: Error while writing flash node %u of host %lu to flash\n",
7356 __func__, fnode_sess->target_id, ha->host_no);
7357 }
7358
7359exit_ddb_apply:
7360 if (fw_ddb_entry)
7361 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7362 fw_ddb_entry, fw_ddb_entry_dma);
7363 return rval;
7364}
7365
7366static ssize_t qla4xxx_sysfs_ddb_conn_open(struct scsi_qla_host *ha,
7367 struct dev_db_entry *fw_ddb_entry,
7368 uint16_t idx)
7369{
7370 struct dev_db_entry *ddb_entry = NULL;
7371 dma_addr_t ddb_entry_dma;
7372 unsigned long wtime;
7373 uint32_t mbx_sts = 0;
7374 uint32_t state = 0, conn_err = 0;
7375 uint16_t tmo = 0;
7376 int ret = 0;
7377
7378 ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*ddb_entry),
7379 &ddb_entry_dma, GFP_KERNEL);
7380 if (!ddb_entry) {
7381 DEBUG2(ql4_printk(KERN_ERR, ha,
7382 "%s: Unable to allocate dma buffer\n",
7383 __func__));
7384 return QLA_ERROR;
7385 }
7386
7387 memcpy(ddb_entry, fw_ddb_entry, sizeof(*ddb_entry));
7388
7389 ret = qla4xxx_set_ddb_entry(ha, idx, ddb_entry_dma, &mbx_sts);
7390 if (ret != QLA_SUCCESS) {
7391 DEBUG2(ql4_printk(KERN_ERR, ha,
7392 "%s: Unable to set ddb entry for index %d\n",
7393 __func__, idx));
7394 goto exit_ddb_conn_open;
7395 }
7396
7397 qla4xxx_conn_open(ha, idx);
7398
7399 /* To ensure that sendtargets is done, wait for at least 12 secs */
7400 tmo = ((ha->def_timeout > LOGIN_TOV) &&
7401 (ha->def_timeout < LOGIN_TOV * 10) ?
7402 ha->def_timeout : LOGIN_TOV);
7403
7404 DEBUG2(ql4_printk(KERN_INFO, ha,
7405 "Default time to wait for login to ddb %d\n", tmo));
7406
7407 wtime = jiffies + (HZ * tmo);
7408 do {
7409 ret = qla4xxx_get_fwddb_entry(ha, idx, NULL, 0, NULL,
7410 NULL, &state, &conn_err, NULL,
7411 NULL);
7412 if (ret == QLA_ERROR)
7413 continue;
7414
7415 if (state == DDB_DS_NO_CONNECTION_ACTIVE ||
7416 state == DDB_DS_SESSION_FAILED)
7417 break;
7418
7419 schedule_timeout_uninterruptible(HZ / 10);
7420 } while (time_after(wtime, jiffies));
7421
7422exit_ddb_conn_open:
7423 if (ddb_entry)
7424 dma_free_coherent(&ha->pdev->dev, sizeof(*ddb_entry),
7425 ddb_entry, ddb_entry_dma);
7426 return ret;
7427}
7428
7429static int qla4xxx_ddb_login_st(struct scsi_qla_host *ha,
ad8bd45e
MR		 7430 struct dev_db_entry *fw_ddb_entry,
7431 uint16_t target_id)
1e9e2be3
AC		 7432{
7433 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
7434 struct list_head list_nt;
7435 uint16_t ddb_index;
7436 int ret = 0;
7437
7438 if (test_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags)) {
7439 ql4_printk(KERN_WARNING, ha,
7440 "%s: A discovery already in progress!\n", __func__);
7441 return QLA_ERROR;
7442 }
7443
7444 INIT_LIST_HEAD(&list_nt);
7445
7446 set_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags);
7447
7448 ret = qla4xxx_get_ddb_index(ha, &ddb_index);
7449 if (ret == QLA_ERROR)
7450 goto exit_login_st_clr_bit;
7451
7452 ret = qla4xxx_sysfs_ddb_conn_open(ha, fw_ddb_entry, ddb_index);
7453 if (ret == QLA_ERROR)
7454 goto exit_login_st;
7455
ad8bd45e 7456 qla4xxx_build_new_nt_list(ha, &list_nt, target_id);
1e9e2be3
AC		 7457
7458 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, &list_nt, list) {
7459 list_del_init(&ddb_idx->list);
7460 qla4xxx_clear_ddb_entry(ha, ddb_idx->fw_ddb_idx);
7461 vfree(ddb_idx);
7462 }
7463
7464exit_login_st:
7465 if (qla4xxx_clear_ddb_entry(ha, ddb_index) == QLA_ERROR) {
7466 ql4_printk(KERN_ERR, ha,
7467 "Unable to clear DDB index = 0x%x\n", ddb_index);
7468 }
7469
7470 clear_bit(ddb_index, ha->ddb_idx_map);
7471
7472exit_login_st_clr_bit:
7473 clear_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags);
7474 return ret;
7475}
7476
7477static int qla4xxx_ddb_login_nt(struct scsi_qla_host *ha,
7478 struct dev_db_entry *fw_ddb_entry,
7479 uint16_t idx)
7480{
7481 int ret = QLA_ERROR;
7482
ad8bd45e 7483 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL);
1e9e2be3
AC		 7484 if (ret != QLA_SUCCESS)
7485 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER,
7486 idx);
7487 else
7488 ret = -EPERM;
7489
7490 return ret;
7491}
7492
7493/**
7494 * qla4xxx_sysfs_ddb_login - Login to the specified target
7495 * @fnode_sess: pointer to session attrs of flash ddb entry
7496 * @fnode_conn: pointer to connection attrs of flash ddb entry
7497 *
7498 * This logs in to the specified target
7499 **/
7500static int qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess,
7501 struct iscsi_bus_flash_conn *fnode_conn)
7502{
7503 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7504 struct scsi_qla_host *ha = to_qla_host(shost);
7505 struct dev_db_entry *fw_ddb_entry = NULL;
7506 dma_addr_t fw_ddb_entry_dma;
7507 uint32_t options = 0;
7508 int ret = 0;
7509
7510 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT) {
7511 ql4_printk(KERN_ERR, ha,
7512 "%s: Target info is not persistent\n", __func__);
7513 ret = -EIO;
7514 goto exit_ddb_login;
7515 }
7516
7517 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7518 &fw_ddb_entry_dma, GFP_KERNEL);
7519 if (!fw_ddb_entry) {
7520 DEBUG2(ql4_printk(KERN_ERR, ha,
7521 "%s: Unable to allocate dma buffer\n",
7522 __func__));
7523 ret = -ENOMEM;
7524 goto exit_ddb_login;
7525 }
7526
c962c18b 7527 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
1e9e2be3
AC		 7528 options |= IPV6_DEFAULT_DDB_ENTRY;
7529
7530 ret = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
7531 if (ret == QLA_ERROR)
7532 goto exit_ddb_login;
7533
7534 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry);
7535 fw_ddb_entry->cookie = DDB_VALID_COOKIE;
7536
7537 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0)
ad8bd45e
MR		 7538 ret = qla4xxx_ddb_login_st(ha, fw_ddb_entry,
7539 fnode_sess->target_id);
1e9e2be3
AC		 7540 else
7541 ret = qla4xxx_ddb_login_nt(ha, fw_ddb_entry,
7542 fnode_sess->target_id);
7543
7544 if (ret > 0)
7545 ret = -EIO;
7546
7547exit_ddb_login:
7548 if (fw_ddb_entry)
7549 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7550 fw_ddb_entry, fw_ddb_entry_dma);
7551 return ret;
7552}
7553
7554/**
7555 * qla4xxx_sysfs_ddb_logout_sid - Logout session for the specified target
7556 * @cls_sess: pointer to session to be logged out
7557 *
7558 * This performs session log out from the specified target
7559 **/
7560static int qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess)
7561{
7562 struct iscsi_session *sess;
7563 struct ddb_entry *ddb_entry = NULL;
7564 struct scsi_qla_host *ha;
7565 struct dev_db_entry *fw_ddb_entry = NULL;
7566 dma_addr_t fw_ddb_entry_dma;
7567 unsigned long flags;
7568 unsigned long wtime;
7569 uint32_t ddb_state;
7570 int options;
7571 int ret = 0;
7572
7573 sess = cls_sess->dd_data;
7574 ddb_entry = sess->dd_data;
7575 ha = ddb_entry->ha;
7576
7577 if (ddb_entry->ddb_type != FLASH_DDB) {
7578 ql4_printk(KERN_ERR, ha, "%s: Not a flash node session\n",
7579 __func__);
7580 ret = -ENXIO;
7581 goto exit_ddb_logout;
7582 }
7583
37719c2a
AC		 7584 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) {
7585 ql4_printk(KERN_ERR, ha,
7586 "%s: Logout from boot target entry is not permitted.\n",
7587 __func__);
7588 ret = -EPERM;
7589 goto exit_ddb_logout;
7590 }
7591
1e9e2be3
AC		 7592 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7593 &fw_ddb_entry_dma, GFP_KERNEL);
7594 if (!fw_ddb_entry) {
7595 ql4_printk(KERN_ERR, ha,
7596 "%s: Unable to allocate dma buffer\n", __func__);
7597 ret = -ENOMEM;
7598 goto exit_ddb_logout;
7599 }
7600
99c6a33b
AC		 7601 if (test_and_set_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags))
7602 goto ddb_logout_init;
7603
7604 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
7605 fw_ddb_entry, fw_ddb_entry_dma,
7606 NULL, NULL, &ddb_state, NULL,
7607 NULL, NULL);
7608 if (ret == QLA_ERROR)
7609 goto ddb_logout_init;
7610
7611 if (ddb_state == DDB_DS_SESSION_ACTIVE)
7612 goto ddb_logout_init;
7613
7614 /* wait until next relogin is triggered using DF_RELOGIN and
7615 * clear DF_RELOGIN to avoid invocation of further relogin
7616 */
7617 wtime = jiffies + (HZ * RELOGIN_TOV);
7618 do {
7619 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags))
7620 goto ddb_logout_init;
7621
7622 schedule_timeout_uninterruptible(HZ);
7623 } while ((time_after(wtime, jiffies)));
7624
7625ddb_logout_init:
7626 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY);
7627 atomic_set(&ddb_entry->relogin_timer, 0);
7628
7629 options = LOGOUT_OPTION_CLOSE_SESSION;
7630 qla4xxx_session_logout_ddb(ha, ddb_entry, options);
7631
7632 memset(fw_ddb_entry, 0, sizeof(*fw_ddb_entry));
1e9e2be3
AC		 7633 wtime = jiffies + (HZ * LOGOUT_TOV);
7634 do {
7635 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
7636 fw_ddb_entry, fw_ddb_entry_dma,
7637 NULL, NULL, &ddb_state, NULL,
7638 NULL, NULL);
7639 if (ret == QLA_ERROR)
7640 goto ddb_logout_clr_sess;
7641
7642 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) ||
7643 (ddb_state == DDB_DS_SESSION_FAILED))
7644 goto ddb_logout_clr_sess;
7645
7646 schedule_timeout_uninterruptible(HZ);
7647 } while ((time_after(wtime, jiffies)));
7648
7649ddb_logout_clr_sess:
7650 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
7651 /*
7652 * we have decremented the reference count of the driver
7653 * when we setup the session to have the driver unload
7654 * to be seamless without actually destroying the
7655 * session
7656 **/
7657 try_module_get(qla4xxx_iscsi_transport.owner);
7658 iscsi_destroy_endpoint(ddb_entry->conn->ep);
7659
7660 spin_lock_irqsave(&ha->hardware_lock, flags);
7661 qla4xxx_free_ddb(ha, ddb_entry);
99c6a33b 7662 clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map);
1e9e2be3
AC		 7663 spin_unlock_irqrestore(&ha->hardware_lock, flags);
7664
7665 iscsi_session_teardown(ddb_entry->sess);
7666
99c6a33b 7667 clear_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags);
1e9e2be3
AC		 7668 ret = QLA_SUCCESS;
7669
7670exit_ddb_logout:
7671 if (fw_ddb_entry)
7672 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7673 fw_ddb_entry, fw_ddb_entry_dma);
7674 return ret;
7675}
7676
7677/**
7678 * qla4xxx_sysfs_ddb_logout - Logout from the specified target
7679 * @fnode_sess: pointer to session attrs of flash ddb entry
7680 * @fnode_conn: pointer to connection attrs of flash ddb entry
7681 *
7682 * This performs log out from the specified target
7683 **/
7684static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess,
7685 struct iscsi_bus_flash_conn *fnode_conn)
7686{
7687 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7688 struct scsi_qla_host *ha = to_qla_host(shost);
7689 struct ql4_tuple_ddb *flash_tddb = NULL;
7690 struct ql4_tuple_ddb *tmp_tddb = NULL;
7691 struct dev_db_entry *fw_ddb_entry = NULL;
7692 struct ddb_entry *ddb_entry = NULL;
7693 dma_addr_t fw_ddb_dma;
7694 uint32_t next_idx = 0;
7695 uint32_t state = 0, conn_err = 0;
7696 uint16_t conn_id = 0;
7697 int idx, index;
7698 int status, ret = 0;
7699
7700 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
7701 &fw_ddb_dma);
7702 if (fw_ddb_entry == NULL) {
7703 ql4_printk(KERN_ERR, ha, "%s:Out of memory\n", __func__);
7704 ret = -ENOMEM;
7705 goto exit_ddb_logout;
7706 }
7707
7708 flash_tddb = vzalloc(sizeof(*flash_tddb));
7709 if (!flash_tddb) {
7710 ql4_printk(KERN_WARNING, ha,
7711 "%s:Memory Allocation failed.\n", __func__);
7712 ret = -ENOMEM;
7713 goto exit_ddb_logout;
7714 }
7715
7716 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
7717 if (!tmp_tddb) {
7718 ql4_printk(KERN_WARNING, ha,
7719 "%s:Memory Allocation failed.\n", __func__);
7720 ret = -ENOMEM;
7721 goto exit_ddb_logout;
7722 }
7723
7724 if (!fnode_sess->targetname) {
7725 ql4_printk(KERN_ERR, ha,
7726 "%s:Cannot logout from SendTarget entry\n",
7727 __func__);
7728 ret = -EPERM;
7729 goto exit_ddb_logout;
7730 }
7731
7732 if (fnode_sess->is_boot_target) {
7733 ql4_printk(KERN_ERR, ha,
7734 "%s: Logout from boot target entry is not permitted.\n",
7735 __func__);
7736 ret = -EPERM;
7737 goto exit_ddb_logout;
7738 }
7739
7740 strncpy(flash_tddb->iscsi_name, fnode_sess->targetname,
7741 ISCSI_NAME_SIZE);
7742
c962c18b 7743 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
1e9e2be3
AC		 7744 sprintf(flash_tddb->ip_addr, "%pI6", fnode_conn->ipaddress);
7745 else
7746 sprintf(flash_tddb->ip_addr, "%pI4", fnode_conn->ipaddress);
7747
7748 flash_tddb->tpgt = fnode_sess->tpgt;
7749 flash_tddb->port = fnode_conn->port;
7750
7751 COPY_ISID(flash_tddb->isid, fnode_sess->isid);
7752
7753 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
7754 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
7755 if (ddb_entry == NULL)
7756 continue;
7757
7758 if (ddb_entry->ddb_type != FLASH_DDB)
7759 continue;
7760
7761 index = ddb_entry->sess->target_id;
7762 status = qla4xxx_get_fwddb_entry(ha, index, fw_ddb_entry,
7763 fw_ddb_dma, NULL, &next_idx,
7764 &state, &conn_err, NULL,
7765 &conn_id);
7766 if (status == QLA_ERROR) {
7767 ret = -ENOMEM;
7768 break;
7769 }
7770
7771 qla4xxx_convert_param_ddb(fw_ddb_entry, tmp_tddb, NULL);
7772
7773 status = qla4xxx_compare_tuple_ddb(ha, flash_tddb, tmp_tddb,
7774 true);
7775 if (status == QLA_SUCCESS) {
7776 ret = qla4xxx_sysfs_ddb_logout_sid(ddb_entry->sess);
7777 break;
7778 }
7779 }
7780
7781 if (idx == MAX_DDB_ENTRIES)
7782 ret = -ESRCH;
7783
7784exit_ddb_logout:
7785 if (flash_tddb)
7786 vfree(flash_tddb);
7787 if (tmp_tddb)
7788 vfree(tmp_tddb);
7789 if (fw_ddb_entry)
7790 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
7791
7792 return ret;
7793}
7794
7795static int
7796qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session *fnode_sess,
7797 int param, char *buf)
7798{
7799 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7800 struct scsi_qla_host *ha = to_qla_host(shost);
7801 struct iscsi_bus_flash_conn *fnode_conn;
7802 struct ql4_chap_table chap_tbl;
7803 struct device *dev;
a2f76636 7804 int parent_type;
1e9e2be3
AC		 7805 int rc = 0;
7806
8526cb11 7807 dev = iscsi_find_flashnode_conn(fnode_sess);
1e9e2be3
AC		 7808 if (!dev)
7809 return -EIO;
7810
7811 fnode_conn = iscsi_dev_to_flash_conn(dev);
7812
7813 switch (param) {
7814 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6:
7815 rc = sprintf(buf, "%u\n", fnode_conn->is_fw_assigned_ipv6);
7816 break;
7817 case ISCSI_FLASHNODE_PORTAL_TYPE:
7818 rc = sprintf(buf, "%s\n", fnode_sess->portal_type);
7819 break;
7820 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE:
7821 rc = sprintf(buf, "%u\n", fnode_sess->auto_snd_tgt_disable);
7822 break;
7823 case ISCSI_FLASHNODE_DISCOVERY_SESS:
7824 rc = sprintf(buf, "%u\n", fnode_sess->discovery_sess);
7825 break;
7826 case ISCSI_FLASHNODE_ENTRY_EN:
7827 rc = sprintf(buf, "%u\n", fnode_sess->entry_state);
7828 break;
7829 case ISCSI_FLASHNODE_HDR_DGST_EN:
7830 rc = sprintf(buf, "%u\n", fnode_conn->hdrdgst_en);
7831 break;
7832 case ISCSI_FLASHNODE_DATA_DGST_EN:
7833 rc = sprintf(buf, "%u\n", fnode_conn->datadgst_en);
7834 break;
7835 case ISCSI_FLASHNODE_IMM_DATA_EN:
7836 rc = sprintf(buf, "%u\n", fnode_sess->imm_data_en);
7837 break;
7838 case ISCSI_FLASHNODE_INITIAL_R2T_EN:
7839 rc = sprintf(buf, "%u\n", fnode_sess->initial_r2t_en);
7840 break;
7841 case ISCSI_FLASHNODE_DATASEQ_INORDER:
7842 rc = sprintf(buf, "%u\n", fnode_sess->dataseq_inorder_en);
7843 break;
7844 case ISCSI_FLASHNODE_PDU_INORDER:
7845 rc = sprintf(buf, "%u\n", fnode_sess->pdu_inorder_en);
7846 break;
7847 case ISCSI_FLASHNODE_CHAP_AUTH_EN:
7848 rc = sprintf(buf, "%u\n", fnode_sess->chap_auth_en);
7849 break;
7850 case ISCSI_FLASHNODE_SNACK_REQ_EN:
7851 rc = sprintf(buf, "%u\n", fnode_conn->snack_req_en);
7852 break;
7853 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN:
7854 rc = sprintf(buf, "%u\n", fnode_sess->discovery_logout_en);
7855 break;
7856 case ISCSI_FLASHNODE_BIDI_CHAP_EN:
7857 rc = sprintf(buf, "%u\n", fnode_sess->bidi_chap_en);
7858 break;
7859 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL:
7860 rc = sprintf(buf, "%u\n", fnode_sess->discovery_auth_optional);
7861 break;
7862 case ISCSI_FLASHNODE_ERL:
7863 rc = sprintf(buf, "%u\n", fnode_sess->erl);
7864 break;
7865 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT:
7866 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_stat);
7867 break;
7868 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE:
7869 rc = sprintf(buf, "%u\n", fnode_conn->tcp_nagle_disable);
7870 break;
7871 case ISCSI_FLASHNODE_TCP_WSF_DISABLE:
7872 rc = sprintf(buf, "%u\n", fnode_conn->tcp_wsf_disable);
7873 break;
7874 case ISCSI_FLASHNODE_TCP_TIMER_SCALE:
7875 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timer_scale);
7876 break;
7877 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN:
7878 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_en);
7879 break;
7880 case ISCSI_FLASHNODE_IP_FRAG_DISABLE:
7881 rc = sprintf(buf, "%u\n", fnode_conn->fragment_disable);
7882 break;
7883 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH:
7884 rc = sprintf(buf, "%u\n", fnode_conn->max_recv_dlength);
7885 break;
7886 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH:
7887 rc = sprintf(buf, "%u\n", fnode_conn->max_xmit_dlength);
7888 break;
7889 case ISCSI_FLASHNODE_FIRST_BURST:
7890 rc = sprintf(buf, "%u\n", fnode_sess->first_burst);
7891 break;
7892 case ISCSI_FLASHNODE_DEF_TIME2WAIT:
7893 rc = sprintf(buf, "%u\n", fnode_sess->time2wait);
7894 break;
7895 case ISCSI_FLASHNODE_DEF_TIME2RETAIN:
7896 rc = sprintf(buf, "%u\n", fnode_sess->time2retain);
7897 break;
7898 case ISCSI_FLASHNODE_MAX_R2T:
7899 rc = sprintf(buf, "%u\n", fnode_sess->max_r2t);
7900 break;
7901 case ISCSI_FLASHNODE_KEEPALIVE_TMO:
7902 rc = sprintf(buf, "%u\n", fnode_conn->keepalive_timeout);
7903 break;
7904 case ISCSI_FLASHNODE_ISID:
7905 rc = sprintf(buf, "%02x%02x%02x%02x%02x%02x\n",
7906 fnode_sess->isid[0], fnode_sess->isid[1],
7907 fnode_sess->isid[2], fnode_sess->isid[3],
7908 fnode_sess->isid[4], fnode_sess->isid[5]);
7909 break;
7910 case ISCSI_FLASHNODE_TSID:
7911 rc = sprintf(buf, "%u\n", fnode_sess->tsid);
7912 break;
7913 case ISCSI_FLASHNODE_PORT:
7914 rc = sprintf(buf, "%d\n", fnode_conn->port);
7915 break;
7916 case ISCSI_FLASHNODE_MAX_BURST:
7917 rc = sprintf(buf, "%u\n", fnode_sess->max_burst);
7918 break;
7919 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO:
7920 rc = sprintf(buf, "%u\n",
7921 fnode_sess->default_taskmgmt_timeout);
7922 break;
7923 case ISCSI_FLASHNODE_IPADDR:
c962c18b 7924 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
1e9e2be3
AC		 7925 rc = sprintf(buf, "%pI6\n", fnode_conn->ipaddress);
7926 else
7927 rc = sprintf(buf, "%pI4\n", fnode_conn->ipaddress);
7928 break;
7929 case ISCSI_FLASHNODE_ALIAS:
7930 if (fnode_sess->targetalias)
7931 rc = sprintf(buf, "%s\n", fnode_sess->targetalias);
7932 else
7933 rc = sprintf(buf, "\n");
7934 break;
7935 case ISCSI_FLASHNODE_REDIRECT_IPADDR:
c962c18b 7936 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
1e9e2be3
AC		 7937 rc = sprintf(buf, "%pI6\n",
7938 fnode_conn->redirect_ipaddr);
7939 else
7940 rc = sprintf(buf, "%pI4\n",
7941 fnode_conn->redirect_ipaddr);
7942 break;
7943 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE:
7944 rc = sprintf(buf, "%u\n", fnode_conn->max_segment_size);
7945 break;
7946 case ISCSI_FLASHNODE_LOCAL_PORT:
7947 rc = sprintf(buf, "%u\n", fnode_conn->local_port);
7948 break;
7949 case ISCSI_FLASHNODE_IPV4_TOS:
7950 rc = sprintf(buf, "%u\n", fnode_conn->ipv4_tos);
7951 break;
7952 case ISCSI_FLASHNODE_IPV6_TC:
c962c18b 7953 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
1e9e2be3
AC		 7954 rc = sprintf(buf, "%u\n",
7955 fnode_conn->ipv6_traffic_class);
7956 else
7957 rc = sprintf(buf, "\n");
7958 break;
7959 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL:
7960 rc = sprintf(buf, "%u\n", fnode_conn->ipv6_flow_label);
7961 break;
7962 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6:
c962c18b 7963 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
1e9e2be3
AC		 7964 rc = sprintf(buf, "%pI6\n",
7965 fnode_conn->link_local_ipv6_addr);
7966 else
7967 rc = sprintf(buf, "\n");
7968 break;
7969 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX:
a2f76636 7970 rc = sprintf(buf, "%u\n", fnode_sess->discovery_parent_idx);
1e9e2be3
AC		 7971 break;
7972 case ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE:
7973 if (fnode_sess->discovery_parent_type == DDB_ISNS)
7974 parent_type = ISCSI_DISC_PARENT_ISNS;
7975 else if (fnode_sess->discovery_parent_type == DDB_NO_LINK)
7976 parent_type = ISCSI_DISC_PARENT_UNKNOWN;
b6130cea 7977 else if (fnode_sess->discovery_parent_type < MAX_DDB_ENTRIES)
1e9e2be3
AC		 7978 parent_type = ISCSI_DISC_PARENT_SENDTGT;
7979 else
7980 parent_type = ISCSI_DISC_PARENT_UNKNOWN;
7981
7982 rc = sprintf(buf, "%s\n",
7983 iscsi_get_discovery_parent_name(parent_type));
7984 break;
7985 case ISCSI_FLASHNODE_NAME:
7986 if (fnode_sess->targetname)
7987 rc = sprintf(buf, "%s\n", fnode_sess->targetname);
7988 else
7989 rc = sprintf(buf, "\n");
7990 break;
7991 case ISCSI_FLASHNODE_TPGT:
7992 rc = sprintf(buf, "%u\n", fnode_sess->tpgt);
7993 break;
7994 case ISCSI_FLASHNODE_TCP_XMIT_WSF:
7995 rc = sprintf(buf, "%u\n", fnode_conn->tcp_xmit_wsf);
7996 break;
7997 case ISCSI_FLASHNODE_TCP_RECV_WSF:
7998 rc = sprintf(buf, "%u\n", fnode_conn->tcp_recv_wsf);
7999 break;
8000 case ISCSI_FLASHNODE_CHAP_OUT_IDX:
8001 rc = sprintf(buf, "%u\n", fnode_sess->chap_out_idx);
8002 break;
8003 case ISCSI_FLASHNODE_USERNAME:
8004 if (fnode_sess->chap_auth_en) {
8005 qla4xxx_get_uni_chap_at_index(ha,
8006 chap_tbl.name,
8007 chap_tbl.secret,
8008 fnode_sess->chap_out_idx);
8009 rc = sprintf(buf, "%s\n", chap_tbl.name);
8010 } else {
8011 rc = sprintf(buf, "\n");
8012 }
8013 break;
8014 case ISCSI_FLASHNODE_PASSWORD:
8015 if (fnode_sess->chap_auth_en) {
8016 qla4xxx_get_uni_chap_at_index(ha,
8017 chap_tbl.name,
8018 chap_tbl.secret,
8019 fnode_sess->chap_out_idx);
8020 rc = sprintf(buf, "%s\n", chap_tbl.secret);
8021 } else {
8022 rc = sprintf(buf, "\n");
8023 }
8024 break;
8025 case ISCSI_FLASHNODE_STATSN:
8026 rc = sprintf(buf, "%u\n", fnode_conn->statsn);
8027 break;
8028 case ISCSI_FLASHNODE_EXP_STATSN:
8029 rc = sprintf(buf, "%u\n", fnode_conn->exp_statsn);
8030 break;
8031 case ISCSI_FLASHNODE_IS_BOOT_TGT:
8032 rc = sprintf(buf, "%u\n", fnode_sess->is_boot_target);
8033 break;
8034 default:
8035 rc = -ENOSYS;
8036 break;
8037 }
8526cb11
MC		 8038
8039 put_device(dev);
1e9e2be3
AC		 8040 return rc;
8041}
8042
8043/**
8044 * qla4xxx_sysfs_ddb_set_param - Set parameter for firmware DDB entry
8045 * @fnode_sess: pointer to session attrs of flash ddb entry
8046 * @fnode_conn: pointer to connection attrs of flash ddb entry
8047 * @data: Parameters and their values to update
8048 * @len: len of data
8049 *
8050 * This sets the parameter of flash ddb entry and writes them to flash
8051 **/
8052static int
8053qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess,
8054 struct iscsi_bus_flash_conn *fnode_conn,
8055 void *data, int len)
8056{
8057 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
8058 struct scsi_qla_host *ha = to_qla_host(shost);
1e9e2be3 8059 struct iscsi_flashnode_param_info *fnode_param;
244c079b 8060 struct ql4_chap_table chap_tbl;
1e9e2be3 8061 struct nlattr *attr;
244c079b 8062 uint16_t chap_out_idx = INVALID_ENTRY;
1e9e2be3
AC		 8063 int rc = QLA_ERROR;
8064 uint32_t rem = len;
8065
244c079b 8066 memset((void *)&chap_tbl, 0, sizeof(chap_tbl));
1e9e2be3
AC		 8067 nla_for_each_attr(attr, data, len, rem) {
8068 fnode_param = nla_data(attr);
8069
8070 switch (fnode_param->param) {
8071 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6:
8072 fnode_conn->is_fw_assigned_ipv6 = fnode_param->value[0];
8073 break;
8074 case ISCSI_FLASHNODE_PORTAL_TYPE:
8075 memcpy(fnode_sess->portal_type, fnode_param->value,
8076 strlen(fnode_sess->portal_type));
8077 break;
8078 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE:
8079 fnode_sess->auto_snd_tgt_disable =
8080 fnode_param->value[0];
8081 break;
8082 case ISCSI_FLASHNODE_DISCOVERY_SESS:
8083 fnode_sess->discovery_sess = fnode_param->value[0];
8084 break;
8085 case ISCSI_FLASHNODE_ENTRY_EN:
8086 fnode_sess->entry_state = fnode_param->value[0];
8087 break;
8088 case ISCSI_FLASHNODE_HDR_DGST_EN:
8089 fnode_conn->hdrdgst_en = fnode_param->value[0];
8090 break;
8091 case ISCSI_FLASHNODE_DATA_DGST_EN:
8092 fnode_conn->datadgst_en = fnode_param->value[0];
8093 break;
8094 case ISCSI_FLASHNODE_IMM_DATA_EN:
8095 fnode_sess->imm_data_en = fnode_param->value[0];
8096 break;
8097 case ISCSI_FLASHNODE_INITIAL_R2T_EN:
8098 fnode_sess->initial_r2t_en = fnode_param->value[0];
8099 break;
8100 case ISCSI_FLASHNODE_DATASEQ_INORDER:
8101 fnode_sess->dataseq_inorder_en = fnode_param->value[0];
8102 break;
8103 case ISCSI_FLASHNODE_PDU_INORDER:
8104 fnode_sess->pdu_inorder_en = fnode_param->value[0];
8105 break;
8106 case ISCSI_FLASHNODE_CHAP_AUTH_EN:
8107 fnode_sess->chap_auth_en = fnode_param->value[0];
244c079b
AC		 8108 /* Invalidate chap index if chap auth is disabled */
8109 if (!fnode_sess->chap_auth_en)
8110 fnode_sess->chap_out_idx = INVALID_ENTRY;
8111
1e9e2be3
AC		 8112 break;
8113 case ISCSI_FLASHNODE_SNACK_REQ_EN:
8114 fnode_conn->snack_req_en = fnode_param->value[0];
8115 break;
8116 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN:
8117 fnode_sess->discovery_logout_en = fnode_param->value[0];
8118 break;
8119 case ISCSI_FLASHNODE_BIDI_CHAP_EN:
8120 fnode_sess->bidi_chap_en = fnode_param->value[0];
8121 break;
8122 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL:
8123 fnode_sess->discovery_auth_optional =
8124 fnode_param->value[0];
8125 break;
8126 case ISCSI_FLASHNODE_ERL:
8127 fnode_sess->erl = fnode_param->value[0];
8128 break;
8129 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT:
8130 fnode_conn->tcp_timestamp_stat = fnode_param->value[0];
8131 break;
8132 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE:
8133 fnode_conn->tcp_nagle_disable = fnode_param->value[0];
8134 break;
8135 case ISCSI_FLASHNODE_TCP_WSF_DISABLE:
8136 fnode_conn->tcp_wsf_disable = fnode_param->value[0];
8137 break;
8138 case ISCSI_FLASHNODE_TCP_TIMER_SCALE:
8139 fnode_conn->tcp_timer_scale = fnode_param->value[0];
8140 break;
8141 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN:
8142 fnode_conn->tcp_timestamp_en = fnode_param->value[0];
8143 break;
8144 case ISCSI_FLASHNODE_IP_FRAG_DISABLE:
8145 fnode_conn->fragment_disable = fnode_param->value[0];
8146 break;
8147 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH:
8148 fnode_conn->max_recv_dlength =
8149 *(unsigned *)fnode_param->value;
8150 break;
8151 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH:
8152 fnode_conn->max_xmit_dlength =
8153 *(unsigned *)fnode_param->value;
8154 break;
8155 case ISCSI_FLASHNODE_FIRST_BURST:
8156 fnode_sess->first_burst =
8157 *(unsigned *)fnode_param->value;
8158 break;
8159 case ISCSI_FLASHNODE_DEF_TIME2WAIT:
8160 fnode_sess->time2wait = *(uint16_t *)fnode_param->value;
8161 break;
8162 case ISCSI_FLASHNODE_DEF_TIME2RETAIN:
8163 fnode_sess->time2retain =
8164 *(uint16_t *)fnode_param->value;
8165 break;
8166 case ISCSI_FLASHNODE_MAX_R2T:
8167 fnode_sess->max_r2t =
8168 *(uint16_t *)fnode_param->value;
8169 break;
8170 case ISCSI_FLASHNODE_KEEPALIVE_TMO:
8171 fnode_conn->keepalive_timeout =
8172 *(uint16_t *)fnode_param->value;
8173 break;
8174 case ISCSI_FLASHNODE_ISID:
8175 memcpy(fnode_sess->isid, fnode_param->value,
8176 sizeof(fnode_sess->isid));
8177 break;
8178 case ISCSI_FLASHNODE_TSID:
8179 fnode_sess->tsid = *(uint16_t *)fnode_param->value;
8180 break;
8181 case ISCSI_FLASHNODE_PORT:
8182 fnode_conn->port = *(uint16_t *)fnode_param->value;
8183 break;
8184 case ISCSI_FLASHNODE_MAX_BURST:
8185 fnode_sess->max_burst = *(unsigned *)fnode_param->value;
8186 break;
8187 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO:
8188 fnode_sess->default_taskmgmt_timeout =
8189 *(uint16_t *)fnode_param->value;
8190 break;
8191 case ISCSI_FLASHNODE_IPADDR:
8192 memcpy(fnode_conn->ipaddress, fnode_param->value,
8193 IPv6_ADDR_LEN);
8194 break;
8195 case ISCSI_FLASHNODE_ALIAS:
8196 rc = iscsi_switch_str_param(&fnode_sess->targetalias,
8197 (char *)fnode_param->value);
8198 break;
8199 case ISCSI_FLASHNODE_REDIRECT_IPADDR:
8200 memcpy(fnode_conn->redirect_ipaddr, fnode_param->value,
8201 IPv6_ADDR_LEN);
8202 break;
8203 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE:
8204 fnode_conn->max_segment_size =
8205 *(unsigned *)fnode_param->value;
8206 break;
8207 case ISCSI_FLASHNODE_LOCAL_PORT:
8208 fnode_conn->local_port =
8209 *(uint16_t *)fnode_param->value;
8210 break;
8211 case ISCSI_FLASHNODE_IPV4_TOS:
8212 fnode_conn->ipv4_tos = fnode_param->value[0];
8213 break;
8214 case ISCSI_FLASHNODE_IPV6_TC:
8215 fnode_conn->ipv6_traffic_class = fnode_param->value[0];
8216 break;
8217 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL:
8218 fnode_conn->ipv6_flow_label = fnode_param->value[0];
8219 break;
8220 case ISCSI_FLASHNODE_NAME:
8221 rc = iscsi_switch_str_param(&fnode_sess->targetname,
8222 (char *)fnode_param->value);
8223 break;
8224 case ISCSI_FLASHNODE_TPGT:
8225 fnode_sess->tpgt = *(uint16_t *)fnode_param->value;
8226 break;
8227 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6:
8228 memcpy(fnode_conn->link_local_ipv6_addr,
8229 fnode_param->value, IPv6_ADDR_LEN);
8230 break;
65560166
AC		 8231 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX:
8232 fnode_sess->discovery_parent_idx =
1e9e2be3
AC		 8233 *(uint16_t *)fnode_param->value;
8234 break;
8235 case ISCSI_FLASHNODE_TCP_XMIT_WSF:
8236 fnode_conn->tcp_xmit_wsf =
8237 *(uint8_t *)fnode_param->value;
8238 break;
8239 case ISCSI_FLASHNODE_TCP_RECV_WSF:
8240 fnode_conn->tcp_recv_wsf =
8241 *(uint8_t *)fnode_param->value;
8242 break;
8243 case ISCSI_FLASHNODE_STATSN:
8244 fnode_conn->statsn = *(uint32_t *)fnode_param->value;
8245 break;
8246 case ISCSI_FLASHNODE_EXP_STATSN:
8247 fnode_conn->exp_statsn =
8248 *(uint32_t *)fnode_param->value;
8249 break;
244c079b
AC		 8250 case ISCSI_FLASHNODE_CHAP_OUT_IDX:
8251 chap_out_idx = *(uint16_t *)fnode_param->value;
8252 if (!qla4xxx_get_uni_chap_at_index(ha,
8253 chap_tbl.name,
8254 chap_tbl.secret,
8255 chap_out_idx)) {
8256 fnode_sess->chap_out_idx = chap_out_idx;
8257 /* Enable chap auth if chap index is valid */
8258 fnode_sess->chap_auth_en = QL4_PARAM_ENABLE;
8259 }
8260 break;
1e9e2be3
AC		 8261 default:
8262 ql4_printk(KERN_ERR, ha,
8263 "%s: No such sysfs attribute\n", __func__);
8264 rc = -ENOSYS;
8265 goto exit_set_param;
8266 }
8267 }
8268
8269 rc = qla4xxx_sysfs_ddb_apply(fnode_sess, fnode_conn);
8270
8271exit_set_param:
8272 return rc;
8273}
8274
8275/**
8276 * qla4xxx_sysfs_ddb_delete - Delete firmware DDB entry
8277 * @fnode_sess: pointer to session attrs of flash ddb entry
8278 *
8279 * This invalidates the flash ddb entry at the given index
8280 **/
8281static int qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess)
8282{
8283 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
8284 struct scsi_qla_host *ha = to_qla_host(shost);
8285 uint32_t dev_db_start_offset;
8286 uint32_t dev_db_end_offset;
8287 struct dev_db_entry *fw_ddb_entry = NULL;
8288 dma_addr_t fw_ddb_entry_dma;
8289 uint16_t *ddb_cookie = NULL;
b6130cea 8290 size_t ddb_size = 0;
039acc1e 8291 void *pddb = NULL;
1e9e2be3
AC		 8292 int target_id;
8293 int rc = 0;
8294
1e9e2be3
AC		 8295 if (fnode_sess->is_boot_target) {
8296 rc = -EPERM;
8297 DEBUG2(ql4_printk(KERN_ERR, ha,
8298 "%s: Deletion of boot target entry is not permitted.\n",
8299 __func__));
8300 goto exit_ddb_del;
8301 }
8302
8303 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT)
8304 goto sysfs_ddb_del;
8305
1e9e2be3
AC		 8306 if (is_qla40XX(ha)) {
8307 dev_db_start_offset = FLASH_OFFSET_DB_INFO;
039acc1e
AC		 8308 dev_db_end_offset = FLASH_OFFSET_DB_END;
8309 dev_db_start_offset += (fnode_sess->target_id *
8310 sizeof(*fw_ddb_entry));
8311 ddb_size = sizeof(*fw_ddb_entry);
1e9e2be3
AC		 8312 } else {
8313 dev_db_start_offset = FLASH_RAW_ACCESS_ADDR +
8314 (ha->hw.flt_region_ddb << 2);
8315 /* flt_ddb_size is DDB table size for both ports
8316 * so divide it by 2 to calculate the offset for second port
8317 */
8318 if (ha->port_num == 1)
8319 dev_db_start_offset += (ha->hw.flt_ddb_size / 2);
1e9e2be3 8320
039acc1e
AC		 8321 dev_db_end_offset = dev_db_start_offset +
8322 (ha->hw.flt_ddb_size / 2);
8323
8324 dev_db_start_offset += (fnode_sess->target_id *
8325 sizeof(*fw_ddb_entry));
1bcb5619 8326 dev_db_start_offset += offsetof(struct dev_db_entry, cookie);
039acc1e
AC		 8327
8328 ddb_size = sizeof(*ddb_cookie);
8329 }
1e9e2be3
AC		 8330
8331 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: start offset=%u, end offset=%u\n",
8332 __func__, dev_db_start_offset, dev_db_end_offset));
8333
8334 if (dev_db_start_offset > dev_db_end_offset) {
8335 rc = -EIO;
8336 DEBUG2(ql4_printk(KERN_ERR, ha, "%s:Invalid DDB index %u\n",
8337 __func__, fnode_sess->target_id));
8338 goto exit_ddb_del;
8339 }
8340
039acc1e
AC		 8341 pddb = dma_alloc_coherent(&ha->pdev->dev, ddb_size,
8342 &fw_ddb_entry_dma, GFP_KERNEL);
8343 if (!pddb) {
8344 rc = -ENOMEM;
8345 DEBUG2(ql4_printk(KERN_ERR, ha,
8346 "%s: Unable to allocate dma buffer\n",
8347 __func__));
8348 goto exit_ddb_del;
8349 }
8350
8351 if (is_qla40XX(ha)) {
8352 fw_ddb_entry = pddb;
8353 memset(fw_ddb_entry, 0, ddb_size);
8354 ddb_cookie = &fw_ddb_entry->cookie;
8355 } else {
8356 ddb_cookie = pddb;
8357 }
8358
1e9e2be3
AC		 8359 /* invalidate the cookie */
8360 *ddb_cookie = 0xFFEE;
8361 qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset,
039acc1e 8362 ddb_size, FLASH_OPT_RMW_COMMIT);
1e9e2be3
AC		 8363
8364sysfs_ddb_del:
8365 target_id = fnode_sess->target_id;
8366 iscsi_destroy_flashnode_sess(fnode_sess);
8367 ql4_printk(KERN_INFO, ha,
8368 "%s: session and conn entries for flashnode %u of host %lu deleted\n",
8369 __func__, target_id, ha->host_no);
8370exit_ddb_del:
039acc1e
AC		 8371 if (pddb)
8372 dma_free_coherent(&ha->pdev->dev, ddb_size, pddb,
8373 fw_ddb_entry_dma);
1e9e2be3
AC		 8374 return rc;
8375}
8376
8377/**
8378 * qla4xxx_sysfs_ddb_export - Create sysfs entries for firmware DDBs
8379 * @ha: pointer to adapter structure
8380 *
8381 * Export the firmware DDB for all send targets and normal targets to sysfs.
8382 **/
8383static int qla4xxx_sysfs_ddb_export(struct scsi_qla_host *ha)
8384{
8385 struct dev_db_entry *fw_ddb_entry = NULL;
8386 dma_addr_t fw_ddb_entry_dma;
8387 uint16_t max_ddbs;
8388 uint16_t idx = 0;
8389 int ret = QLA_SUCCESS;
8390
8391 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev,
8392 sizeof(*fw_ddb_entry),
8393 &fw_ddb_entry_dma, GFP_KERNEL);
8394 if (!fw_ddb_entry) {
8395 DEBUG2(ql4_printk(KERN_ERR, ha,
8396 "%s: Unable to allocate dma buffer\n",
8397 __func__));
8398 return -ENOMEM;
8399 }
8400
a957a7d7 8401 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES :
1e9e2be3
AC		 8402 MAX_DEV_DB_ENTRIES;
8403
8404 for (idx = 0; idx < max_ddbs; idx++) {
8405 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry, fw_ddb_entry_dma,
8406 idx))
8407 continue;
8408
8409 ret = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 0);
8410 if (ret) {
8411 ret = -EIO;
8412 break;
8413 }
8414 }
8415
8416 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry,
8417 fw_ddb_entry_dma);
8418
8419 return ret;
8420}
8421
8422static void qla4xxx_sysfs_ddb_remove(struct scsi_qla_host *ha)
8423{
8424 iscsi_destroy_all_flashnode(ha->host);
8425}
8426
8427/**
8428 * qla4xxx_build_ddb_list - Build ddb list and setup sessions
8429 * @ha: pointer to adapter structure
8430 * @is_reset: Is this init path or reset path
8431 *
8432 * Create a list of sendtargets (st) from firmware DDBs, issue send targets
8433 * using connection open, then create the list of normal targets (nt)
8434 * from firmware DDBs. Based on the list of nt setup session and connection
8435 * objects.
8436 **/
8437void qla4xxx_build_ddb_list(struct scsi_qla_host *ha, int is_reset)
8438{
8439 uint16_t tmo = 0;
8440 struct list_head list_st, list_nt;
8441 struct qla_ddb_index *st_ddb_idx, *st_ddb_idx_tmp;
8442 unsigned long wtime;
8443
8444 if (!test_bit(AF_LINK_UP, &ha->flags)) {
8445 set_bit(AF_BUILD_DDB_LIST, &ha->flags);
8446 ha->is_reset = is_reset;
8447 return;
8448 }
8449
8450 INIT_LIST_HEAD(&list_st);
8451 INIT_LIST_HEAD(&list_nt);
8452
8453 qla4xxx_build_st_list(ha, &list_st);
8454
8455 /* Before issuing conn open mbox, ensure all IPs states are configured
8456 * Note, conn open fails if IPs are not configured
8457 */
8458 qla4xxx_wait_for_ip_configuration(ha);
8459
8460 /* Go thru the STs and fire the sendtargets by issuing conn open mbx */
8461 list_for_each_entry_safe(st_ddb_idx, st_ddb_idx_tmp, &list_st, list) {
8462 qla4xxx_conn_open(ha, st_ddb_idx->fw_ddb_idx);
8463 }
8464
8465 /* Wait to ensure all sendtargets are done for min 12 sec wait */
8466 tmo = ((ha->def_timeout > LOGIN_TOV) &&
8467 (ha->def_timeout < LOGIN_TOV * 10) ?
8468 ha->def_timeout : LOGIN_TOV);
8469
8470 DEBUG2(ql4_printk(KERN_INFO, ha,
8471 "Default time to wait for build ddb %d\n", tmo));
8472
8473 wtime = jiffies + (HZ * tmo);
8474 do {
8475 if (list_empty(&list_st))
8476 break;
8477
8478 qla4xxx_remove_failed_ddb(ha, &list_st);
8479 schedule_timeout_uninterruptible(HZ / 10);
8480 } while (time_after(wtime, jiffies));
8481
1e9e2be3 8482
ad8bd45e 8483 qla4xxx_build_nt_list(ha, &list_nt, &list_st, is_reset);
1e9e2be3 8484
ad8bd45e 8485 qla4xxx_free_ddb_list(&list_st);
1e9e2be3
AC		 8486 qla4xxx_free_ddb_list(&list_nt);
8487
8488 qla4xxx_free_ddb_index(ha);
8489}
8490
8491/**
8492 * qla4xxx_wait_login_resp_boot_tgt - Wait for iSCSI boot target login
8493 * response.
8494 * @ha: pointer to adapter structure
8495 *
8496 * When the boot entry is normal iSCSI target then DF_BOOT_TGT flag will be
8497 * set in DDB and we will wait for login response of boot targets during
8498 * probe.
8499 **/
8500static void qla4xxx_wait_login_resp_boot_tgt(struct scsi_qla_host *ha)
8501{
8502 struct ddb_entry *ddb_entry;
8503 struct dev_db_entry *fw_ddb_entry = NULL;
8504 dma_addr_t fw_ddb_entry_dma;
8505 unsigned long wtime;
8506 uint32_t ddb_state;
8507 int max_ddbs, idx, ret;
8508
8509 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
8510 MAX_DEV_DB_ENTRIES;
8511
8512 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8513 &fw_ddb_entry_dma, GFP_KERNEL);
8514 if (!fw_ddb_entry) {
8515 ql4_printk(KERN_ERR, ha,
8516 "%s: Unable to allocate dma buffer\n", __func__);
8517 goto exit_login_resp;
8518 }
8519
8520 wtime = jiffies + (HZ * BOOT_LOGIN_RESP_TOV);
8521
8522 for (idx = 0; idx < max_ddbs; idx++) {
8523 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
8524 if (ddb_entry == NULL)
8525 continue;
8526
8527 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) {
8528 DEBUG2(ql4_printk(KERN_INFO, ha,
8529 "%s: DDB index [%d]\n", __func__,
8530 ddb_entry->fw_ddb_index));
8531 do {
8532 ret = qla4xxx_get_fwddb_entry(ha,
8533 ddb_entry->fw_ddb_index,
8534 fw_ddb_entry, fw_ddb_entry_dma,
8535 NULL, NULL, &ddb_state, NULL,
8536 NULL, NULL);
8537 if (ret == QLA_ERROR)
8538 goto exit_login_resp;
8539
8540 if ((ddb_state == DDB_DS_SESSION_ACTIVE) ||
8541 (ddb_state == DDB_DS_SESSION_FAILED))
8542 break;
8543
8544 schedule_timeout_uninterruptible(HZ);
8545
8546 } while ((time_after(wtime, jiffies)));
8547
8548 if (!time_after(wtime, jiffies)) {
8549 DEBUG2(ql4_printk(KERN_INFO, ha,
8550 "%s: Login response wait timer expired\n",
8551 __func__));
8552 goto exit_login_resp;
8553 }
8554 }
8555 }
8556
8557exit_login_resp:
8558 if (fw_ddb_entry)
8559 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8560 fw_ddb_entry, fw_ddb_entry_dma);
8561}
8562
8563/**
8564 * qla4xxx_probe_adapter - callback function to probe HBA
8565 * @pdev: pointer to pci_dev structure
8566 * @pci_device_id: pointer to pci_device entry
8567 *
8568 * This routine will probe for Qlogic 4xxx iSCSI host adapters.
8569 * It returns zero if successful. It also initializes all data necessary for
8570 * the driver.
8571 **/
8572static int qla4xxx_probe_adapter(struct pci_dev *pdev,
8573 const struct pci_device_id *ent)
8574{
8575 int ret = -ENODEV, status;
8576 struct Scsi_Host *host;
8577 struct scsi_qla_host *ha;
8578 uint8_t init_retry_count = 0;
8579 char buf[34];
8580 struct qla4_8xxx_legacy_intr_set *nx_legacy_intr;
8581 uint32_t dev_state;
8582
8583 if (pci_enable_device(pdev))
8584 return -1;
8585
8586 host = iscsi_host_alloc(&qla4xxx_driver_template, sizeof(*ha), 0);
8587 if (host == NULL) {
afaf5a2d
DS		 8588 printk(KERN_WARNING
8589 "qla4xxx: Couldn't allocate host from scsi layer!\n");
8590 goto probe_disable_device;
8591 }
8592
8593 /* Clear our data area */
b3a271a9 8594 ha = to_qla_host(host);
afaf5a2d
DS		 8595 memset(ha, 0, sizeof(*ha));
8596
8597 /* Save the information from PCI BIOS. */
8598 ha->pdev = pdev;
8599 ha->host = host;
8600 ha->host_no = host->host_no;
6e7b4292 8601 ha->func_num = PCI_FUNC(ha->pdev->devfn);
afaf5a2d 8602
2232be0d
LC		 8603 pci_enable_pcie_error_reporting(pdev);
8604
f4f5df23
VC		 8605 /* Setup Runtime configurable options */
8606 if (is_qla8022(ha)) {
7664a1fd 8607 ha->isp_ops = &qla4_82xx_isp_ops;
33693c7a 8608 ha->reg_tbl = (uint32_t *) qla4_82xx_reg_tbl;
f4f5df23
VC		 8609 ha->qdr_sn_window = -1;
8610 ha->ddr_mn_window = -1;
8611 ha->curr_window = 255;
f4f5df23
VC		 8612 nx_legacy_intr = &legacy_intr[ha->func_num];
8613 ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit;
8614 ha->nx_legacy_intr.tgt_status_reg =
8615 nx_legacy_intr->tgt_status_reg;
8616 ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg;
8617 ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg;
b37ca418 8618 } else if (is_qla8032(ha) || is_qla8042(ha)) {
6e7b4292
VC		 8619 ha->isp_ops = &qla4_83xx_isp_ops;
8620 ha->reg_tbl = (uint32_t *)qla4_83xx_reg_tbl;
f4f5df23
VC		 8621 } else {
8622 ha->isp_ops = &qla4xxx_isp_ops;
8623 }
8624
6e7b4292
VC		 8625 if (is_qla80XX(ha)) {
8626 rwlock_init(&ha->hw_lock);
8627 ha->pf_bit = ha->func_num << 16;
8628 /* Set EEH reset type to fundamental if required by hba */
2232be0d 8629 pdev->needs_freset = 1;
6e7b4292 8630 }
2232be0d 8631
afaf5a2d 8632 /* Configure PCI I/O space. */
f4f5df23 8633 ret = ha->isp_ops->iospace_config(ha);
afaf5a2d 8634 if (ret)
f4f5df23 8635 goto probe_failed_ioconfig;
afaf5a2d 8636
c2660df3 8637 ql4_printk(KERN_INFO, ha, "Found an ISP%04x, irq %d, iobase 0x%p\n",
afaf5a2d
DS		 8638 pdev->device, pdev->irq, ha->reg);
8639
8640 qla4xxx_config_dma_addressing(ha);
8641
8642 /* Initialize lists and spinlocks. */
afaf5a2d
DS		 8643 INIT_LIST_HEAD(&ha->free_srb_q);
8644
8645 mutex_init(&ha->mbox_sem);
4549415a 8646 mutex_init(&ha->chap_sem);
f4f5df23 8647 init_completion(&ha->mbx_intr_comp);
95d31262 8648 init_completion(&ha->disable_acb_comp);
df86f771
VC		 8649 init_completion(&ha->idc_comp);
8650 init_completion(&ha->link_up_comp);
8651 init_completion(&ha->disable_acb_comp);
afaf5a2d
DS		 8652
8653 spin_lock_init(&ha->hardware_lock);
8e9157c8 8654 spin_lock_init(&ha->work_lock);
afaf5a2d 8655
ff884430
VC		 8656 /* Initialize work list */
8657 INIT_LIST_HEAD(&ha->work_list);
8658
afaf5a2d
DS		 8659 /* Allocate dma buffers */
8660 if (qla4xxx_mem_alloc(ha)) {
c2660df3
VC		 8661 ql4_printk(KERN_WARNING, ha,
8662 "[ERROR] Failed to allocate memory for adapter\n");
afaf5a2d
DS		 8663
8664 ret = -ENOMEM;
8665 goto probe_failed;
8666 }
8667
b3a271a9
MR		 8668 host->cmd_per_lun = 3;
8669 host->max_channel = 0;
8670 host->max_lun = MAX_LUNS - 1;
8671 host->max_id = MAX_TARGETS;
8672 host->max_cmd_len = IOCB_MAX_CDB_LEN;
8673 host->can_queue = MAX_SRBS ;
8674 host->transportt = qla4xxx_scsi_transport;
8675
8676 ret = scsi_init_shared_tag_map(host, MAX_SRBS);
8677 if (ret) {
8678 ql4_printk(KERN_WARNING, ha,
8679 "%s: scsi_init_shared_tag_map failed\n", __func__);
8680 goto probe_failed;
8681 }
8682
8683 pci_set_drvdata(pdev, ha);
8684
8685 ret = scsi_add_host(host, &pdev->dev);
8686 if (ret)
8687 goto probe_failed;
8688
6e7b4292
VC		 8689 if (is_qla80XX(ha))
8690 qla4_8xxx_get_flash_info(ha);
8691
b37ca418 8692 if (is_qla8032(ha) || is_qla8042(ha)) {
6e7b4292
VC		 8693 qla4_83xx_read_reset_template(ha);
8694 /*
8695 * NOTE: If ql4dontresethba==1, set IDC_CTRL DONTRESET_BIT0.
8696 * If DONRESET_BIT0 is set, drivers should not set dev_state
8697 * to NEED_RESET. But if NEED_RESET is set, drivers should
8698 * should honor the reset.
8699 */
8700 if (ql4xdontresethba == 1)
8701 qla4_83xx_set_idc_dontreset(ha);
8702 }
f4f5df23 8703
afaf5a2d
DS		 8704 /*
8705 * Initialize the Host adapter request/response queues and
8706 * firmware
8707 * NOTE: interrupts enabled upon successful completion
8708 */
13483730 8709 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER);
7977f825
PV		 8710
8711 /* Dont retry adapter initialization if IRQ allocation failed */
37418cc6 8712 if (is_qla80XX(ha) && (status == QLA_ERROR))
7977f825
PV		 8713 goto skip_retry_init;
8714
f4f5df23
VC		 8715 while ((!test_bit(AF_ONLINE, &ha->flags)) &&
8716 init_retry_count++ < MAX_INIT_RETRIES) {
f9880e76 8717
6e7b4292 8718 if (is_qla80XX(ha)) {
33693c7a
VC		 8719 ha->isp_ops->idc_lock(ha);
8720 dev_state = qla4_8xxx_rd_direct(ha,
e951aca1 8721 QLA8XXX_CRB_DEV_STATE);
33693c7a 8722 ha->isp_ops->idc_unlock(ha);
de8c72da 8723 if (dev_state == QLA8XXX_DEV_FAILED) {
f9880e76
PM		 8724 ql4_printk(KERN_WARNING, ha, "%s: don't retry "
8725 "initialize adapter. H/W is in failed state\n",
8726 __func__);
8727 break;
8728 }
8729 }
afaf5a2d
DS		 8730 DEBUG2(printk("scsi: %s: retrying adapter initialization "
8731 "(%d)\n", __func__, init_retry_count));
f4f5df23
VC		 8732
8733 if (ha->isp_ops->reset_chip(ha) == QLA_ERROR)
8734 continue;
8735
13483730 8736 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER);
37418cc6
NJ		 8737 if (is_qla80XX(ha) && (status == QLA_ERROR)) {
8738 if (qla4_8xxx_check_init_adapter_retry(ha) == QLA_ERROR)
8739 goto skip_retry_init;
8740 }
afaf5a2d 8741 }
f4f5df23 8742
7977f825 8743skip_retry_init:
f4f5df23 8744 if (!test_bit(AF_ONLINE, &ha->flags)) {
c2660df3 8745 ql4_printk(KERN_WARNING, ha, "Failed to initialize adapter\n");
afaf5a2d 8746
6e7b4292 8747 if ((is_qla8022(ha) && ql4xdontresethba) ||
b37ca418
VC		 8748 ((is_qla8032(ha) || is_qla8042(ha)) &&
8749 qla4_83xx_idc_dontreset(ha))) {
fe998527
LC		 8750 /* Put the device in failed state. */
8751 DEBUG2(printk(KERN_ERR "HW STATE: FAILED\n"));
33693c7a
VC		 8752 ha->isp_ops->idc_lock(ha);
8753 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
8754 QLA8XXX_DEV_FAILED);
8755 ha->isp_ops->idc_unlock(ha);
fe998527 8756 }
afaf5a2d 8757 ret = -ENODEV;
b3a271a9 8758 goto remove_host;
afaf5a2d
DS		 8759 }
8760
afaf5a2d
DS		 8761 /* Startup the kernel thread for this host adapter. */
8762 DEBUG2(printk("scsi: %s: Starting kernel thread for "
8763 "qla4xxx_dpc\n", __func__));
8764 sprintf(buf, "qla4xxx_%lu_dpc", ha->host_no);
8765 ha->dpc_thread = create_singlethread_workqueue(buf);
8766 if (!ha->dpc_thread) {
c2660df3 8767 ql4_printk(KERN_WARNING, ha, "Unable to start DPC thread!\n");
afaf5a2d 8768 ret = -ENODEV;
b3a271a9 8769 goto remove_host;
afaf5a2d 8770 }
c4028958 8771 INIT_WORK(&ha->dpc_work, qla4xxx_do_dpc);
afaf5a2d 8772
d8537548
KC		 8773 ha->task_wq = alloc_workqueue("qla4xxx_%lu_task", WQ_MEM_RECLAIM, 1,
8774 ha->host_no);
b3a271a9
MR		 8775 if (!ha->task_wq) {
8776 ql4_printk(KERN_WARNING, ha, "Unable to start task thread!\n");
8777 ret = -ENODEV;
8778 goto remove_host;
8779 }
8780
6e7b4292
VC		 8781 /*
8782 * For ISP-8XXX, request_irqs is called in qla4_8xxx_load_risc
f4f5df23
VC		 8783 * (which is called indirectly by qla4xxx_initialize_adapter),
8784 * so that irqs will be registered after crbinit but before
8785 * mbx_intr_enable.
8786 */
ee996a69 8787 if (is_qla40XX(ha)) {
f4f5df23
VC		 8788 ret = qla4xxx_request_irqs(ha);
8789 if (ret) {
8790 ql4_printk(KERN_WARNING, ha, "Failed to reserve "
8791 "interrupt %d already in use.\n", pdev->irq);
b3a271a9 8792 goto remove_host;
f4f5df23 8793 }
afaf5a2d 8794 }
afaf5a2d 8795
2232be0d 8796 pci_save_state(ha->pdev);
f4f5df23 8797 ha->isp_ops->enable_intrs(ha);
afaf5a2d
DS		 8798
8799 /* Start timer thread. */
8800 qla4xxx_start_timer(ha, qla4xxx_timer, 1);
8801
8802 set_bit(AF_INIT_DONE, &ha->flags);
8803
068237c8
TP		 8804 qla4_8xxx_alloc_sysfs_attr(ha);
8805
afaf5a2d
DS		 8806 printk(KERN_INFO
8807 " QLogic iSCSI HBA Driver version: %s\n"
8808 " QLogic ISP%04x @ %s, host#=%ld, fw=%02d.%02d.%02d.%02d\n",
8809 qla4xxx_version_str, ha->pdev->device, pci_name(ha->pdev),
eee06a0f
AC		 8810 ha->host_no, ha->fw_info.fw_major, ha->fw_info.fw_minor,
8811 ha->fw_info.fw_patch, ha->fw_info.fw_build);
ed1086e0 8812
cfb27874
MD		 8813 /* Set the driver version */
8814 if (is_qla80XX(ha))
8815 qla4_8xxx_set_param(ha, SET_DRVR_VERSION);
8816
2a991c21 8817 if (qla4xxx_setup_boot_info(ha))
3573bfb2
VC		 8818 ql4_printk(KERN_ERR, ha,
8819 "%s: No iSCSI boot target configured\n", __func__);
2a991c21 8820
1e9e2be3
AC		 8821 if (qla4xxx_sysfs_ddb_export(ha))
8822 ql4_printk(KERN_ERR, ha,
8823 "%s: Error exporting ddb to sysfs\n", __func__);
8824
13483730
MC		 8825 /* Perform the build ddb list and login to each */
8826 qla4xxx_build_ddb_list(ha, INIT_ADAPTER);
8827 iscsi_host_for_each_session(ha->host, qla4xxx_login_flash_ddb);
1dc8ed5d 8828 qla4xxx_wait_login_resp_boot_tgt(ha);
13483730
MC		 8829
8830 qla4xxx_create_chap_list(ha);
8831
ed1086e0 8832 qla4xxx_create_ifaces(ha);
afaf5a2d
DS		 8833 return 0;
8834
b3a271a9
MR		 8835remove_host:
8836 scsi_remove_host(ha->host);
8837
afaf5a2d
DS		 8838probe_failed:
8839 qla4xxx_free_adapter(ha);
f4f5df23
VC		 8840
8841probe_failed_ioconfig:
2232be0d 8842 pci_disable_pcie_error_reporting(pdev);
afaf5a2d
DS		 8843 scsi_host_put(ha->host);
8844
8845probe_disable_device:
8846 pci_disable_device(pdev);
8847
8848 return ret;
8849}
8850
7eece5a0
KH		 8851/**
8852 * qla4xxx_prevent_other_port_reinit - prevent other port from re-initialize
8853 * @ha: pointer to adapter structure
8854 *
8855 * Mark the other ISP-4xxx port to indicate that the driver is being removed,
8856 * so that the other port will not re-initialize while in the process of
8857 * removing the ha due to driver unload or hba hotplug.
8858 **/
8859static void qla4xxx_prevent_other_port_reinit(struct scsi_qla_host *ha)
8860{
8861 struct scsi_qla_host *other_ha = NULL;
8862 struct pci_dev *other_pdev = NULL;
8863 int fn = ISP4XXX_PCI_FN_2;
8864
8865 /*iscsi function numbers for ISP4xxx is 1 and 3*/
8866 if (PCI_FUNC(ha->pdev->devfn) & BIT_1)
8867 fn = ISP4XXX_PCI_FN_1;
8868
8869 other_pdev =
8870 pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus),
8871 ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
8872 fn));
8873
8874 /* Get other_ha if other_pdev is valid and state is enable*/
8875 if (other_pdev) {
8876 if (atomic_read(&other_pdev->enable_cnt)) {
8877 other_ha = pci_get_drvdata(other_pdev);
8878 if (other_ha) {
8879 set_bit(AF_HA_REMOVAL, &other_ha->flags);
8880 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: "
8881 "Prevent %s reinit\n", __func__,
8882 dev_name(&other_ha->pdev->dev)));
8883 }
8884 }
8885 pci_dev_put(other_pdev);
8886 }
8887}
8888
28d958ba
VC		 8889static void qla4xxx_destroy_ddb(struct scsi_qla_host *ha,
8890 struct ddb_entry *ddb_entry)
8891{
8892 struct dev_db_entry *fw_ddb_entry = NULL;
8893 dma_addr_t fw_ddb_entry_dma;
8894 unsigned long wtime;
8895 uint32_t ddb_state;
8896 int options;
8897 int status;
8898
8899 options = LOGOUT_OPTION_CLOSE_SESSION;
8900 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR) {
8901 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__);
8902 goto clear_ddb;
8903 }
8904
8905 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8906 &fw_ddb_entry_dma, GFP_KERNEL);
8907 if (!fw_ddb_entry) {
8908 ql4_printk(KERN_ERR, ha,
8909 "%s: Unable to allocate dma buffer\n", __func__);
8910 goto clear_ddb;
8911 }
8912
8913 wtime = jiffies + (HZ * LOGOUT_TOV);
8914 do {
8915 status = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
8916 fw_ddb_entry, fw_ddb_entry_dma,
8917 NULL, NULL, &ddb_state, NULL,
8918 NULL, NULL);
8919 if (status == QLA_ERROR)
8920 goto free_ddb;
8921
8922 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) ||
8923 (ddb_state == DDB_DS_SESSION_FAILED))
8924 goto free_ddb;
8925
8926 schedule_timeout_uninterruptible(HZ);
8927 } while ((time_after(wtime, jiffies)));
8928
8929free_ddb:
8930 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8931 fw_ddb_entry, fw_ddb_entry_dma);
8932clear_ddb:
8933 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
8934}
8935
13483730
MC		 8936static void qla4xxx_destroy_fw_ddb_session(struct scsi_qla_host *ha)
8937{
8938 struct ddb_entry *ddb_entry;
13483730
MC		 8939 int idx;
8940
8941 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
8942
8943 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
8944 if ((ddb_entry != NULL) &&
8945 (ddb_entry->ddb_type == FLASH_DDB)) {
8946
28d958ba 8947 qla4xxx_destroy_ddb(ha, ddb_entry);
13483730
MC		 8948 /*
8949 * we have decremented the reference count of the driver
8950 * when we setup the session to have the driver unload
8951 * to be seamless without actually destroying the
8952 * session
8953 **/
8954 try_module_get(qla4xxx_iscsi_transport.owner);
8955 iscsi_destroy_endpoint(ddb_entry->conn->ep);
8956 qla4xxx_free_ddb(ha, ddb_entry);
8957 iscsi_session_teardown(ddb_entry->sess);
8958 }
8959 }
8960}
afaf5a2d 8961/**
59e13d48 8962 * qla4xxx_remove_adapter - callback function to remove adapter.
afaf5a2d
DS		 8963 * @pci_dev: PCI device pointer
8964 **/
6f039790 8965static void qla4xxx_remove_adapter(struct pci_dev *pdev)
afaf5a2d
DS		 8966{
8967 struct scsi_qla_host *ha;
8968
f8b0751d
VC		 8969 /*
8970 * If the PCI device is disabled then it means probe_adapter had
8971 * failed and resources already cleaned up on probe_adapter exit.
8972 */
8973 if (!pci_is_enabled(pdev))
8974 return;
8975
afaf5a2d
DS		 8976 ha = pci_get_drvdata(pdev);
8977
ee996a69 8978 if (is_qla40XX(ha))
7eece5a0 8979 qla4xxx_prevent_other_port_reinit(ha);
bee4fe8e 8980
ed1086e0
VC		 8981 /* destroy iface from sysfs */
8982 qla4xxx_destroy_ifaces(ha);
8983
13483730 8984 if ((!ql4xdisablesysfsboot) && ha->boot_kset)
2a991c21
MR		 8985 iscsi_boot_destroy_kset(ha->boot_kset);
8986
13483730 8987 qla4xxx_destroy_fw_ddb_session(ha);
068237c8 8988 qla4_8xxx_free_sysfs_attr(ha);
13483730 8989
1e9e2be3 8990 qla4xxx_sysfs_ddb_remove(ha);
afaf5a2d
DS		 8991 scsi_remove_host(ha->host);
8992
8993 qla4xxx_free_adapter(ha);
8994
8995 scsi_host_put(ha->host);
8996
2232be0d 8997 pci_disable_pcie_error_reporting(pdev);
f4f5df23 8998 pci_disable_device(pdev);
afaf5a2d
DS		 8999}
9000
9001/**
9002 * qla4xxx_config_dma_addressing() - Configure OS DMA addressing method.
9003 * @ha: HA context
9004 *
9005 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
9006 * supported addressing method.
9007 */
47975477 9008static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha)
afaf5a2d
DS		 9009{
9010 int retval;
9011
9012 /* Update our PCI device dma_mask for full 64 bit mask */
6a35528a
YH		 9013 if (pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(64)) == 0) {
9014 if (pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) {
afaf5a2d
DS		 9015 dev_dbg(&ha->pdev->dev,
9016 "Failed to set 64 bit PCI consistent mask; "
9017 "using 32 bit.\n");
9018 retval = pci_set_consistent_dma_mask(ha->pdev,
284901a9 9019 DMA_BIT_MASK(32));
afaf5a2d
DS		 9020 }
9021 } else
284901a9 9022 retval = pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(32));
afaf5a2d
DS		 9023}
9024
9025static int qla4xxx_slave_alloc(struct scsi_device *sdev)
9026{
b3a271a9
MR		 9027 struct iscsi_cls_session *cls_sess;
9028 struct iscsi_session *sess;
9029 struct ddb_entry *ddb;
8bb4033d 9030 int queue_depth = QL4_DEF_QDEPTH;
afaf5a2d 9031
b3a271a9
MR		 9032 cls_sess = starget_to_session(sdev->sdev_target);
9033 sess = cls_sess->dd_data;
9034 ddb = sess->dd_data;
9035
afaf5a2d
DS		 9036 sdev->hostdata = ddb;
9037 sdev->tagged_supported = 1;
8bb4033d
VC		 9038
9039 if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU)
9040 queue_depth = ql4xmaxqdepth;
9041
9042 scsi_activate_tcq(sdev, queue_depth);
afaf5a2d
DS		 9043 return 0;
9044}
9045
9046static int qla4xxx_slave_configure(struct scsi_device *sdev)
9047{
9048 sdev->tagged_supported = 1;
9049 return 0;
9050}
9051
9052static void qla4xxx_slave_destroy(struct scsi_device *sdev)
9053{
9054 scsi_deactivate_tcq(sdev, 1);
9055}
9056
f7b4aa63
TP		 9057static int qla4xxx_change_queue_depth(struct scsi_device *sdev, int qdepth,
9058 int reason)
9059{
9060 if (!ql4xqfulltracking)
9061 return -EOPNOTSUPP;
9062
9063 return iscsi_change_queue_depth(sdev, qdepth, reason);
9064}
9065
afaf5a2d
DS		 9066/**
9067 * qla4xxx_del_from_active_array - returns an active srb
9068 * @ha: Pointer to host adapter structure.
fd589a8f 9069 * @index: index into the active_array
afaf5a2d
DS		 9070 *
9071 * This routine removes and returns the srb at the specified index
9072 **/
f4f5df23
VC		 9073struct srb *qla4xxx_del_from_active_array(struct scsi_qla_host *ha,
9074 uint32_t index)
afaf5a2d
DS		 9075{
9076 struct srb *srb = NULL;
5369887a 9077 struct scsi_cmnd *cmd = NULL;
afaf5a2d 9078
5369887a
VC		 9079 cmd = scsi_host_find_tag(ha->host, index);
9080 if (!cmd)
afaf5a2d
DS		 9081 return srb;
9082
5369887a
VC		 9083 srb = (struct srb *)CMD_SP(cmd);
9084 if (!srb)
afaf5a2d
DS		 9085 return srb;
9086
9087 /* update counters */
9088 if (srb->flags & SRB_DMA_VALID) {
afaf5a2d
DS		 9089 ha->iocb_cnt -= srb->iocb_cnt;
9090 if (srb->cmd)
5369887a
VC		 9091 srb->cmd->host_scribble =
9092 (unsigned char *)(unsigned long) MAX_SRBS;
afaf5a2d
DS		 9093 }
9094 return srb;
9095}
9096
afaf5a2d
DS		 9097/**
9098 * qla4xxx_eh_wait_on_command - waits for command to be returned by firmware
09a0f719 9099 * @ha: Pointer to host adapter structure.
afaf5a2d
DS		 9100 * @cmd: Scsi Command to wait on.
9101 *
9102 * This routine waits for the command to be returned by the Firmware
9103 * for some max time.
9104 **/
9105static int qla4xxx_eh_wait_on_command(struct scsi_qla_host *ha,
9106 struct scsi_cmnd *cmd)
9107{
9108 int done = 0;
9109 struct srb *rp;
9110 uint32_t max_wait_time = EH_WAIT_CMD_TOV;
2232be0d
LC		 9111 int ret = SUCCESS;
9112
9113 /* Dont wait on command if PCI error is being handled
9114 * by PCI AER driver
9115 */
9116 if (unlikely(pci_channel_offline(ha->pdev)) ||
9117 (test_bit(AF_EEH_BUSY, &ha->flags))) {
9118 ql4_printk(KERN_WARNING, ha, "scsi%ld: Return from %s\n",
9119 ha->host_no, __func__);
9120 return ret;
9121 }
afaf5a2d
DS		 9122
9123 do {
9124 /* Checking to see if its returned to OS */
5369887a 9125 rp = (struct srb *) CMD_SP(cmd);
afaf5a2d
DS		 9126 if (rp == NULL) {
9127 done++;
9128 break;
9129 }
9130
9131 msleep(2000);
9132 } while (max_wait_time--);
9133
9134 return done;
9135}
9136
9137/**
9138 * qla4xxx_wait_for_hba_online - waits for HBA to come online
9139 * @ha: Pointer to host adapter structure
9140 **/
9141static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha)
9142{
9143 unsigned long wait_online;
9144
f581a3f7 9145 wait_online = jiffies + (HBA_ONLINE_TOV * HZ);
afaf5a2d
DS		 9146 while (time_before(jiffies, wait_online)) {
9147
9148 if (adapter_up(ha))
9149 return QLA_SUCCESS;
afaf5a2d
DS		 9150
9151 msleep(2000);
9152 }
9153
9154 return QLA_ERROR;
9155}
9156
9157/**
ce545039 9158 * qla4xxx_eh_wait_for_commands - wait for active cmds to finish.
fd589a8f 9159 * @ha: pointer to HBA
afaf5a2d
DS		 9160 * @t: target id
9161 * @l: lun id
9162 *
9163 * This function waits for all outstanding commands to a lun to complete. It
9164 * returns 0 if all pending commands are returned and 1 otherwise.
9165 **/
ce545039
MC		 9166static int qla4xxx_eh_wait_for_commands(struct scsi_qla_host *ha,
9167 struct scsi_target *stgt,
9168 struct scsi_device *sdev)
afaf5a2d
DS		 9169{
9170 int cnt;
9171 int status = 0;
9172 struct scsi_cmnd *cmd;
9173
9174 /*
ce545039
MC		 9175 * Waiting for all commands for the designated target or dev
9176 * in the active array
afaf5a2d
DS		 9177 */
9178 for (cnt = 0; cnt < ha->host->can_queue; cnt++) {
9179 cmd = scsi_host_find_tag(ha->host, cnt);
ce545039
MC		 9180 if (cmd && stgt == scsi_target(cmd->device) &&
9181 (!sdev || sdev == cmd->device)) {
afaf5a2d
DS		 9182 if (!qla4xxx_eh_wait_on_command(ha, cmd)) {
9183 status++;
9184 break;
9185 }
9186 }
9187 }
9188 return status;
9189}
9190
09a0f719
VC		 9191/**
9192 * qla4xxx_eh_abort - callback for abort task.
9193 * @cmd: Pointer to Linux's SCSI command structure
9194 *
9195 * This routine is called by the Linux OS to abort the specified
9196 * command.
9197 **/
9198static int qla4xxx_eh_abort(struct scsi_cmnd *cmd)
9199{
9200 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
9201 unsigned int id = cmd->device->id;
9202 unsigned int lun = cmd->device->lun;
92b3e5bb 9203 unsigned long flags;
09a0f719
VC		 9204 struct srb *srb = NULL;
9205 int ret = SUCCESS;
9206 int wait = 0;
9207
c2660df3 9208 ql4_printk(KERN_INFO, ha,
5cd049a5
CH		 9209 "scsi%ld:%d:%d: Abort command issued cmd=%p\n",
9210 ha->host_no, id, lun, cmd);
09a0f719 9211
92b3e5bb 9212 spin_lock_irqsave(&ha->hardware_lock, flags);
09a0f719 9213 srb = (struct srb *) CMD_SP(cmd);
92b3e5bb
MC		 9214 if (!srb) {
9215 spin_unlock_irqrestore(&ha->hardware_lock, flags);
09a0f719 9216 return SUCCESS;
92b3e5bb 9217 }
09a0f719 9218 kref_get(&srb->srb_ref);
92b3e5bb 9219 spin_unlock_irqrestore(&ha->hardware_lock, flags);
09a0f719
VC		 9220
9221 if (qla4xxx_abort_task(ha, srb) != QLA_SUCCESS) {
9222 DEBUG3(printk("scsi%ld:%d:%d: Abort_task mbx failed.\n",
9223 ha->host_no, id, lun));
9224 ret = FAILED;
9225 } else {
9226 DEBUG3(printk("scsi%ld:%d:%d: Abort_task mbx success.\n",
9227 ha->host_no, id, lun));
9228 wait = 1;
9229 }
9230
9231 kref_put(&srb->srb_ref, qla4xxx_srb_compl);
9232
9233 /* Wait for command to complete */
9234 if (wait) {
9235 if (!qla4xxx_eh_wait_on_command(ha, cmd)) {
9236 DEBUG2(printk("scsi%ld:%d:%d: Abort handler timed out\n",
9237 ha->host_no, id, lun));
9238 ret = FAILED;
9239 }
9240 }
9241
c2660df3 9242 ql4_printk(KERN_INFO, ha,
09a0f719 9243 "scsi%ld:%d:%d: Abort command - %s\n",
25985edc 9244 ha->host_no, id, lun, (ret == SUCCESS) ? "succeeded" : "failed");
09a0f719
VC		 9245
9246 return ret;
9247}
9248
afaf5a2d
DS		 9249/**
9250 * qla4xxx_eh_device_reset - callback for target reset.
9251 * @cmd: Pointer to Linux's SCSI command structure
9252 *
9253 * This routine is called by the Linux OS to reset all luns on the
9254 * specified target.
9255 **/
9256static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd)
9257{
9258 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
9259 struct ddb_entry *ddb_entry = cmd->device->hostdata;
afaf5a2d
DS		 9260 int ret = FAILED, stat;
9261
612f7348 9262 if (!ddb_entry)
afaf5a2d
DS		 9263 return ret;
9264
c01be6dc
MC		 9265 ret = iscsi_block_scsi_eh(cmd);
9266 if (ret)
9267 return ret;
9268 ret = FAILED;
9269
c2660df3 9270 ql4_printk(KERN_INFO, ha,
afaf5a2d
DS		 9271 "scsi%ld:%d:%d:%d: DEVICE RESET ISSUED.\n", ha->host_no,
9272 cmd->device->channel, cmd->device->id, cmd->device->lun);
9273
9274 DEBUG2(printk(KERN_INFO
9275 "scsi%ld: DEVICE_RESET cmd=%p jiffies = 0x%lx, to=%x,"
9276 "dpc_flags=%lx, status=%x allowed=%d\n", ha->host_no,
242f9dcb 9277 cmd, jiffies, cmd->request->timeout / HZ,
afaf5a2d
DS		 9278 ha->dpc_flags, cmd->result, cmd->allowed));
9279
9280 /* FIXME: wait for hba to go online */
9281 stat = qla4xxx_reset_lun(ha, ddb_entry, cmd->device->lun);
9282 if (stat != QLA_SUCCESS) {
c2660df3 9283 ql4_printk(KERN_INFO, ha, "DEVICE RESET FAILED. %d\n", stat);
afaf5a2d
DS		 9284 goto eh_dev_reset_done;
9285 }
9286
ce545039
MC		 9287 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device),
9288 cmd->device)) {
c2660df3 9289 ql4_printk(KERN_INFO, ha,
ce545039
MC		 9290 "DEVICE RESET FAILED - waiting for "
9291 "commands.\n");
9292 goto eh_dev_reset_done;
afaf5a2d
DS		 9293 }
9294
9d562913
DS		 9295 /* Send marker. */
9296 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun,
9297 MM_LUN_RESET) != QLA_SUCCESS)
9298 goto eh_dev_reset_done;
9299
c2660df3 9300 ql4_printk(KERN_INFO, ha,
afaf5a2d
DS		 9301 "scsi(%ld:%d:%d:%d): DEVICE RESET SUCCEEDED.\n",
9302 ha->host_no, cmd->device->channel, cmd->device->id,
9303 cmd->device->lun);
9304
9305 ret = SUCCESS;
9306
9307eh_dev_reset_done:
9308
9309 return ret;
9310}
9311
ce545039
MC		 9312/**
9313 * qla4xxx_eh_target_reset - callback for target reset.
9314 * @cmd: Pointer to Linux's SCSI command structure
9315 *
9316 * This routine is called by the Linux OS to reset the target.
9317 **/
9318static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd)
9319{
9320 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
9321 struct ddb_entry *ddb_entry = cmd->device->hostdata;
c01be6dc 9322 int stat, ret;
ce545039
MC		 9323
9324 if (!ddb_entry)
9325 return FAILED;
9326
c01be6dc
MC		 9327 ret = iscsi_block_scsi_eh(cmd);
9328 if (ret)
9329 return ret;
9330
ce545039
MC		 9331 starget_printk(KERN_INFO, scsi_target(cmd->device),
9332 "WARM TARGET RESET ISSUED.\n");
9333
9334 DEBUG2(printk(KERN_INFO
9335 "scsi%ld: TARGET_DEVICE_RESET cmd=%p jiffies = 0x%lx, "
9336 "to=%x,dpc_flags=%lx, status=%x allowed=%d\n",
242f9dcb 9337 ha->host_no, cmd, jiffies, cmd->request->timeout / HZ,
ce545039
MC		 9338 ha->dpc_flags, cmd->result, cmd->allowed));
9339
9340 stat = qla4xxx_reset_target(ha, ddb_entry);
9341 if (stat != QLA_SUCCESS) {
9342 starget_printk(KERN_INFO, scsi_target(cmd->device),
9343 "WARM TARGET RESET FAILED.\n");
9344 return FAILED;
9345 }
9346
ce545039
MC		 9347 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device),
9348 NULL)) {
9349 starget_printk(KERN_INFO, scsi_target(cmd->device),
9350 "WARM TARGET DEVICE RESET FAILED - "
9351 "waiting for commands.\n");
9352 return FAILED;
9353 }
9354
9d562913
DS		 9355 /* Send marker. */
9356 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun,
9357 MM_TGT_WARM_RESET) != QLA_SUCCESS) {
9358 starget_printk(KERN_INFO, scsi_target(cmd->device),
9359 "WARM TARGET DEVICE RESET FAILED - "
9360 "marker iocb failed.\n");
9361 return FAILED;
9362 }
9363
ce545039
MC		 9364 starget_printk(KERN_INFO, scsi_target(cmd->device),
9365 "WARM TARGET RESET SUCCEEDED.\n");
9366 return SUCCESS;
9367}
9368
8a288960
SR		 9369/**
9370 * qla4xxx_is_eh_active - check if error handler is running
9371 * @shost: Pointer to SCSI Host struct
9372 *
9373 * This routine finds that if reset host is called in EH
9374 * scenario or from some application like sg_reset
9375 **/
9376static int qla4xxx_is_eh_active(struct Scsi_Host *shost)
9377{
9378 if (shost->shost_state == SHOST_RECOVERY)
9379 return 1;
9380 return 0;
9381}
9382
afaf5a2d
DS		 9383/**
9384 * qla4xxx_eh_host_reset - kernel callback
9385 * @cmd: Pointer to Linux's SCSI command structure
9386 *
9387 * This routine is invoked by the Linux kernel to perform fatal error
9388 * recovery on the specified adapter.
9389 **/
9390static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd)
9391{
9392 int return_status = FAILED;
9393 struct scsi_qla_host *ha;
9394
b3a271a9 9395 ha = to_qla_host(cmd->device->host);
afaf5a2d 9396
b37ca418 9397 if ((is_qla8032(ha) || is_qla8042(ha)) && ql4xdontresethba)
6e7b4292
VC		 9398 qla4_83xx_set_idc_dontreset(ha);
9399
9400 /*
b37ca418
VC		 9401 * For ISP8324 and ISP8042, if IDC_CTRL DONTRESET_BIT0 is set by other
9402 * protocol drivers, we should not set device_state to NEED_RESET
6e7b4292
VC		 9403 */
9404 if (ql4xdontresethba ||
b37ca418
VC		 9405 ((is_qla8032(ha) || is_qla8042(ha)) &&
9406 qla4_83xx_idc_dontreset(ha))) {
f4f5df23
VC		 9407 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n",
9408 ha->host_no, __func__));
8a288960
SR		 9409
9410 /* Clear outstanding srb in queues */
9411 if (qla4xxx_is_eh_active(cmd->device->host))
9412 qla4xxx_abort_active_cmds(ha, DID_ABORT << 16);
9413
f4f5df23
VC		 9414 return FAILED;
9415 }
9416
c2660df3 9417 ql4_printk(KERN_INFO, ha,
dca05c4c 9418 "scsi(%ld:%d:%d:%d): HOST RESET ISSUED.\n", ha->host_no,
afaf5a2d
DS		 9419 cmd->device->channel, cmd->device->id, cmd->device->lun);
9420
9421 if (qla4xxx_wait_for_hba_online(ha) != QLA_SUCCESS) {
9422 DEBUG2(printk("scsi%ld:%d: %s: Unable to reset host. Adapter "
9423 "DEAD.\n", ha->host_no, cmd->device->channel,
9424 __func__));
9425
9426 return FAILED;
9427 }
9428
f4f5df23 9429 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
6e7b4292 9430 if (is_qla80XX(ha))
f4f5df23
VC		 9431 set_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
9432 else
9433 set_bit(DPC_RESET_HA, &ha->dpc_flags);
9434 }
50a29aec 9435
f4f5df23 9436 if (qla4xxx_recover_adapter(ha) == QLA_SUCCESS)
afaf5a2d 9437 return_status = SUCCESS;
afaf5a2d 9438
c2660df3 9439 ql4_printk(KERN_INFO, ha, "HOST RESET %s.\n",
25985edc 9440 return_status == FAILED ? "FAILED" : "SUCCEEDED");
afaf5a2d
DS		 9441
9442 return return_status;
9443}
9444
95d31262
VC		 9445static int qla4xxx_context_reset(struct scsi_qla_host *ha)
9446{
9447 uint32_t mbox_cmd[MBOX_REG_COUNT];
9448 uint32_t mbox_sts[MBOX_REG_COUNT];
9449 struct addr_ctrl_blk_def *acb = NULL;
9450 uint32_t acb_len = sizeof(struct addr_ctrl_blk_def);
9451 int rval = QLA_SUCCESS;
9452 dma_addr_t acb_dma;
9453
9454 acb = dma_alloc_coherent(&ha->pdev->dev,
9455 sizeof(struct addr_ctrl_blk_def),
9456 &acb_dma, GFP_KERNEL);
9457 if (!acb) {
9458 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc acb\n",
9459 __func__);
9460 rval = -ENOMEM;
9461 goto exit_port_reset;
9462 }
9463
9464 memset(acb, 0, acb_len);
9465
9466 rval = qla4xxx_get_acb(ha, acb_dma, PRIMARI_ACB, acb_len);
9467 if (rval != QLA_SUCCESS) {
9468 rval = -EIO;
9469 goto exit_free_acb;
9470 }
9471
9472 rval = qla4xxx_disable_acb(ha);
9473 if (rval != QLA_SUCCESS) {
9474 rval = -EIO;
9475 goto exit_free_acb;
9476 }
9477
9478 wait_for_completion_timeout(&ha->disable_acb_comp,
9479 DISABLE_ACB_TOV * HZ);
9480
9481 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], acb_dma);
9482 if (rval != QLA_SUCCESS) {
9483 rval = -EIO;
9484 goto exit_free_acb;
9485 }
9486
9487exit_free_acb:
9488 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk_def),
9489 acb, acb_dma);
9490exit_port_reset:
9491 DEBUG2(ql4_printk(KERN_INFO, ha, "%s %s\n", __func__,
9492 rval == QLA_SUCCESS ? "SUCCEEDED" : "FAILED"));
9493 return rval;
9494}
9495
9496static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type)
9497{
9498 struct scsi_qla_host *ha = to_qla_host(shost);
9499 int rval = QLA_SUCCESS;
ebd777de 9500 uint32_t idc_ctrl;
95d31262
VC		 9501
9502 if (ql4xdontresethba) {
9503 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Don't Reset HBA\n",
9504 __func__));
9505 rval = -EPERM;
9506 goto exit_host_reset;
9507 }
9508
95d31262
VC		 9509 if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
9510 goto recover_adapter;
9511
9512 switch (reset_type) {
9513 case SCSI_ADAPTER_RESET:
9514 set_bit(DPC_RESET_HA, &ha->dpc_flags);
9515 break;
9516 case SCSI_FIRMWARE_RESET:
9517 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
6e7b4292 9518 if (is_qla80XX(ha))
95d31262
VC		 9519 /* set firmware context reset */
9520 set_bit(DPC_RESET_HA_FW_CONTEXT,
9521 &ha->dpc_flags);
9522 else {
9523 rval = qla4xxx_context_reset(ha);
9524 goto exit_host_reset;
9525 }
9526 }
9527 break;
9528 }
9529
9530recover_adapter:
b37ca418 9531 /* For ISP8324 and ISP8042 set graceful reset bit in IDC_DRV_CTRL if
ebd777de 9532 * reset is issued by application */
b37ca418
VC		 9533 if ((is_qla8032(ha) || is_qla8042(ha)) &&
9534 test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
ebd777de
VC		 9535 idc_ctrl = qla4_83xx_rd_reg(ha, QLA83XX_IDC_DRV_CTRL);
9536 qla4_83xx_wr_reg(ha, QLA83XX_IDC_DRV_CTRL,
9537 (idc_ctrl | GRACEFUL_RESET_BIT1));
9538 }
9539
95d31262
VC		 9540 rval = qla4xxx_recover_adapter(ha);
9541 if (rval != QLA_SUCCESS) {
9542 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: recover adapter fail\n",
9543 __func__));
9544 rval = -EIO;
9545 }
9546
9547exit_host_reset:
9548 return rval;
9549}
9550
2232be0d
LC		 9551/* PCI AER driver recovers from all correctable errors w/o
9552 * driver intervention. For uncorrectable errors PCI AER
9553 * driver calls the following device driver's callbacks
9554 *
9555 * - Fatal Errors - link_reset
9556 * - Non-Fatal Errors - driver's pci_error_detected() which
9557 * returns CAN_RECOVER, NEED_RESET or DISCONNECT.
9558 *
9559 * PCI AER driver calls
9560 * CAN_RECOVER - driver's pci_mmio_enabled(), mmio_enabled
9561 * returns RECOVERED or NEED_RESET if fw_hung
9562 * NEED_RESET - driver's slot_reset()
9563 * DISCONNECT - device is dead & cannot recover
9564 * RECOVERED - driver's pci_resume()
9565 */
9566static pci_ers_result_t
9567qla4xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
9568{
9569 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9570
9571 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: error detected:state %x\n",
9572 ha->host_no, __func__, state);
9573
9574 if (!is_aer_supported(ha))
9575 return PCI_ERS_RESULT_NONE;
9576
9577 switch (state) {
9578 case pci_channel_io_normal:
9579 clear_bit(AF_EEH_BUSY, &ha->flags);
9580 return PCI_ERS_RESULT_CAN_RECOVER;
9581 case pci_channel_io_frozen:
9582 set_bit(AF_EEH_BUSY, &ha->flags);
9583 qla4xxx_mailbox_premature_completion(ha);
9584 qla4xxx_free_irqs(ha);
9585 pci_disable_device(pdev);
7b3595df
VC		 9586 /* Return back all IOs */
9587 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
2232be0d
LC		 9588 return PCI_ERS_RESULT_NEED_RESET;
9589 case pci_channel_io_perm_failure:
9590 set_bit(AF_EEH_BUSY, &ha->flags);
9591 set_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags);
9592 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
9593 return PCI_ERS_RESULT_DISCONNECT;
9594 }
9595 return PCI_ERS_RESULT_NEED_RESET;
9596}
9597
9598/**
9599 * qla4xxx_pci_mmio_enabled() gets called if
9600 * qla4xxx_pci_error_detected() returns PCI_ERS_RESULT_CAN_RECOVER
9601 * and read/write to the device still works.
9602 **/
9603static pci_ers_result_t
9604qla4xxx_pci_mmio_enabled(struct pci_dev *pdev)
9605{
9606 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9607
9608 if (!is_aer_supported(ha))
9609 return PCI_ERS_RESULT_NONE;
9610
7b3595df 9611 return PCI_ERS_RESULT_RECOVERED;
2232be0d
LC		 9612}
9613
7b3595df 9614static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha)
2232be0d
LC		 9615{
9616 uint32_t rval = QLA_ERROR;
9617 int fn;
9618 struct pci_dev *other_pdev = NULL;
9619
9620 ql4_printk(KERN_WARNING, ha, "scsi%ld: In %s\n", ha->host_no, __func__);
9621
9622 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
9623
9624 if (test_bit(AF_ONLINE, &ha->flags)) {
9625 clear_bit(AF_ONLINE, &ha->flags);
b3a271a9
MR		 9626 clear_bit(AF_LINK_UP, &ha->flags);
9627 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session);
2232be0d 9628 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
2232be0d
LC		 9629 }
9630
9631 fn = PCI_FUNC(ha->pdev->devfn);
daa34eb4
TP		 9632 if (is_qla8022(ha)) {
9633 while (fn > 0) {
9634 fn--;
9635 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Finding PCI device at func %x\n",
9636 ha->host_no, __func__, fn);
9637 /* Get the pci device given the domain, bus,
9638 * slot/function number */
9639 other_pdev = pci_get_domain_bus_and_slot(
9640 pci_domain_nr(ha->pdev->bus),
9641 ha->pdev->bus->number,
9642 PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
9643 fn));
9644
9645 if (!other_pdev)
9646 continue;
2232be0d 9647
daa34eb4
TP		 9648 if (atomic_read(&other_pdev->enable_cnt)) {
9649 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Found PCI func in enabled state%x\n",
9650 ha->host_no, __func__, fn);
9651 pci_dev_put(other_pdev);
9652 break;
9653 }
2232be0d 9654 pci_dev_put(other_pdev);
2232be0d 9655 }
daa34eb4
TP		 9656 } else {
9657 /* this case is meant for ISP83xx/ISP84xx only */
9658 if (qla4_83xx_can_perform_reset(ha)) {
9659 /* reset fn as iSCSI is going to perform the reset */
9660 fn = 0;
9661 }
2232be0d
LC		 9662 }
9663
9664 /* The first function on the card, the reset owner will
9665 * start & initialize the firmware. The other functions
9666 * on the card will reset the firmware context
9667 */
9668 if (!fn) {
9669 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn being reset "
9670 "0x%x is the owner\n", ha->host_no, __func__,
9671 ha->pdev->devfn);
9672
33693c7a
VC		 9673 ha->isp_ops->idc_lock(ha);
9674 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9675 QLA8XXX_DEV_COLD);
33693c7a 9676 ha->isp_ops->idc_unlock(ha);
39c95826
VC		 9677
9678 rval = qla4_8xxx_update_idc_reg(ha);
9679 if (rval == QLA_ERROR) {
9680 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: FAILED\n",
9681 ha->host_no, __func__);
9682 ha->isp_ops->idc_lock(ha);
9683 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9684 QLA8XXX_DEV_FAILED);
9685 ha->isp_ops->idc_unlock(ha);
9686 goto exit_error_recovery;
9687 }
2232be0d 9688
2232be0d 9689 clear_bit(AF_FW_RECOVERY, &ha->flags);
13483730 9690 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
2232be0d
LC		 9691
9692 if (rval != QLA_SUCCESS) {
9693 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: "
9694 "FAILED\n", ha->host_no, __func__);
37418cc6 9695 qla4xxx_free_irqs(ha);
82761907 9696 ha->isp_ops->idc_lock(ha);
2232be0d 9697 qla4_8xxx_clear_drv_active(ha);
33693c7a
VC		 9698 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9699 QLA8XXX_DEV_FAILED);
82761907 9700 ha->isp_ops->idc_unlock(ha);
2232be0d
LC		 9701 } else {
9702 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: "
9703 "READY\n", ha->host_no, __func__);
82761907 9704 ha->isp_ops->idc_lock(ha);
33693c7a
VC		 9705 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9706 QLA8XXX_DEV_READY);
2232be0d 9707 /* Clear driver state register */
33693c7a 9708 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_STATE, 0);
2232be0d 9709 qla4_8xxx_set_drv_active(ha);
82761907 9710 ha->isp_ops->idc_unlock(ha);
137257da 9711 ha->isp_ops->enable_intrs(ha);
2232be0d 9712 }
2232be0d
LC		 9713 } else {
9714 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn 0x%x is not "
9715 "the reset owner\n", ha->host_no, __func__,
9716 ha->pdev->devfn);
33693c7a
VC		 9717 if ((qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE) ==
9718 QLA8XXX_DEV_READY)) {
2232be0d 9719 clear_bit(AF_FW_RECOVERY, &ha->flags);
13483730 9720 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
137257da
PV		 9721 if (rval == QLA_SUCCESS)
9722 ha->isp_ops->enable_intrs(ha);
37418cc6
NJ		 9723 else
9724 qla4xxx_free_irqs(ha);
137257da 9725
33693c7a 9726 ha->isp_ops->idc_lock(ha);
2232be0d 9727 qla4_8xxx_set_drv_active(ha);
33693c7a 9728 ha->isp_ops->idc_unlock(ha);
2232be0d
LC		 9729 }
9730 }
39c95826 9731exit_error_recovery:
2232be0d
LC		 9732 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
9733 return rval;
9734}
9735
9736static pci_ers_result_t
9737qla4xxx_pci_slot_reset(struct pci_dev *pdev)
9738{
9739 pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
9740 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9741 int rc;
9742
9743 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: slot_reset\n",
9744 ha->host_no, __func__);
9745
9746 if (!is_aer_supported(ha))
9747 return PCI_ERS_RESULT_NONE;
9748
9749 /* Restore the saved state of PCIe device -
9750 * BAR registers, PCI Config space, PCIX, MSI,
9751 * IOV states
9752 */
9753 pci_restore_state(pdev);
9754
9755 /* pci_restore_state() clears the saved_state flag of the device
9756 * save restored state which resets saved_state flag
9757 */
9758 pci_save_state(pdev);
9759
9760 /* Initialize device or resume if in suspended state */
9761 rc = pci_enable_device(pdev);
9762 if (rc) {
25985edc 9763 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Can't re-enable "
2232be0d
LC		 9764 "device after reset\n", ha->host_no, __func__);
9765 goto exit_slot_reset;
9766 }
9767
7b3595df 9768 ha->isp_ops->disable_intrs(ha);
2232be0d 9769
6e7b4292 9770 if (is_qla80XX(ha)) {
2232be0d
LC		 9771 if (qla4_8xxx_error_recovery(ha) == QLA_SUCCESS) {
9772 ret = PCI_ERS_RESULT_RECOVERED;
9773 goto exit_slot_reset;
9774 } else
9775 goto exit_slot_reset;
9776 }
9777
9778exit_slot_reset:
9779 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Return=%x\n"
9780 "device after reset\n", ha->host_no, __func__, ret);
9781 return ret;
9782}
9783
9784static void
9785qla4xxx_pci_resume(struct pci_dev *pdev)
9786{
9787 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9788 int ret;
9789
9790 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: pci_resume\n",
9791 ha->host_no, __func__);
9792
9793 ret = qla4xxx_wait_for_hba_online(ha);
9794 if (ret != QLA_SUCCESS) {
9795 ql4_printk(KERN_ERR, ha, "scsi%ld: %s: the device failed to "
9796 "resume I/O from slot/link_reset\n", ha->host_no,
9797 __func__);
9798 }
9799
9800 pci_cleanup_aer_uncorrect_error_status(pdev);
9801 clear_bit(AF_EEH_BUSY, &ha->flags);
9802}
9803
a55b2d21 9804static const struct pci_error_handlers qla4xxx_err_handler = {
2232be0d
LC		 9805 .error_detected = qla4xxx_pci_error_detected,
9806 .mmio_enabled = qla4xxx_pci_mmio_enabled,
9807 .slot_reset = qla4xxx_pci_slot_reset,
9808 .resume = qla4xxx_pci_resume,
9809};
9810
afaf5a2d
DS		 9811static struct pci_device_id qla4xxx_pci_tbl[] = {
9812 {
9813 .vendor = PCI_VENDOR_ID_QLOGIC,
9814 .device = PCI_DEVICE_ID_QLOGIC_ISP4010,
9815 .subvendor = PCI_ANY_ID,
9816 .subdevice = PCI_ANY_ID,
9817 },
9818 {
9819 .vendor = PCI_VENDOR_ID_QLOGIC,
9820 .device = PCI_DEVICE_ID_QLOGIC_ISP4022,
9821 .subvendor = PCI_ANY_ID,
9822 .subdevice = PCI_ANY_ID,
9823 },
d915058f
DS		 9824 {
9825 .vendor = PCI_VENDOR_ID_QLOGIC,
9826 .device = PCI_DEVICE_ID_QLOGIC_ISP4032,
9827 .subvendor = PCI_ANY_ID,
9828 .subdevice = PCI_ANY_ID,
9829 },
f4f5df23
VC		 9830 {
9831 .vendor = PCI_VENDOR_ID_QLOGIC,
9832 .device = PCI_DEVICE_ID_QLOGIC_ISP8022,
9833 .subvendor = PCI_ANY_ID,
9834 .subdevice = PCI_ANY_ID,
9835 },
6e7b4292
VC		 9836 {
9837 .vendor = PCI_VENDOR_ID_QLOGIC,
9838 .device = PCI_DEVICE_ID_QLOGIC_ISP8324,
9839 .subvendor = PCI_ANY_ID,
9840 .subdevice = PCI_ANY_ID,
9841 },
b37ca418
VC		 9842 {
9843 .vendor = PCI_VENDOR_ID_QLOGIC,
9844 .device = PCI_DEVICE_ID_QLOGIC_ISP8042,
9845 .subvendor = PCI_ANY_ID,
9846 .subdevice = PCI_ANY_ID,
9847 },
afaf5a2d
DS		 9848 {0, 0},
9849};
9850MODULE_DEVICE_TABLE(pci, qla4xxx_pci_tbl);
9851
47975477 9852static struct pci_driver qla4xxx_pci_driver = {
afaf5a2d
DS		 9853 .name = DRIVER_NAME,
9854 .id_table = qla4xxx_pci_tbl,
9855 .probe = qla4xxx_probe_adapter,
9856 .remove = qla4xxx_remove_adapter,
2232be0d 9857 .err_handler = &qla4xxx_err_handler,
afaf5a2d
DS		 9858};
9859
9860static int __init qla4xxx_module_init(void)
9861{
9862 int ret;
9863
9864 /* Allocate cache for SRBs. */
9865 srb_cachep = kmem_cache_create("qla4xxx_srbs", sizeof(struct srb), 0,
20c2df83 9866 SLAB_HWCACHE_ALIGN, NULL);
afaf5a2d
DS		 9867 if (srb_cachep == NULL) {
9868 printk(KERN_ERR
9869 "%s: Unable to allocate SRB cache..."
9870 "Failing load!\n", DRIVER_NAME);
9871 ret = -ENOMEM;
9872 goto no_srp_cache;
9873 }
9874
9875 /* Derive version string. */
9876 strcpy(qla4xxx_version_str, QLA4XXX_DRIVER_VERSION);
11010fec 9877 if (ql4xextended_error_logging)
afaf5a2d
DS		 9878 strcat(qla4xxx_version_str, "-debug");
9879
9880 qla4xxx_scsi_transport =
9881 iscsi_register_transport(&qla4xxx_iscsi_transport);
9882 if (!qla4xxx_scsi_transport){
9883 ret = -ENODEV;
9884 goto release_srb_cache;
9885 }
9886
afaf5a2d
DS		 9887 ret = pci_register_driver(&qla4xxx_pci_driver);
9888 if (ret)
9889 goto unregister_transport;
9890
9891 printk(KERN_INFO "QLogic iSCSI HBA Driver\n");
9892 return 0;
5ae16db3 9893
afaf5a2d
DS		 9894unregister_transport:
9895 iscsi_unregister_transport(&qla4xxx_iscsi_transport);
9896release_srb_cache:
9897 kmem_cache_destroy(srb_cachep);
9898no_srp_cache:
9899 return ret;
9900}
9901
9902static void __exit qla4xxx_module_exit(void)
9903{
9904 pci_unregister_driver(&qla4xxx_pci_driver);
9905 iscsi_unregister_transport(&qla4xxx_iscsi_transport);
9906 kmem_cache_destroy(srb_cachep);
9907}
9908
9909module_init(qla4xxx_module_init);
9910module_exit(qla4xxx_module_exit);
9911
9912MODULE_AUTHOR("QLogic Corporation");
9913MODULE_DESCRIPTION("QLogic iSCSI HBA Driver");
9914MODULE_LICENSE("GPL");
9915MODULE_VERSION(QLA4XXX_DRIVER_VERSION);
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