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Merge tag 's390-5.3-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
[linux-2.6-block.git] / drivers / scsi / qla4xxx / ql4_os.c
CommitLineData
afaf5a2d
DS		 1/*
2 * QLogic iSCSI HBA Driver
4a4f51e9 3 * Copyright (c) 2003-2013 QLogic Corporation
afaf5a2d
DS		 4 *
5 * See LICENSE.qla4xxx for copyright and licensing details.
6 */
7#include <linux/moduleparam.h>
5a0e3ad6 8#include <linux/slab.h>
2a991c21
MR		 9#include <linux/blkdev.h>
10#include <linux/iscsi_boot_sysfs.h>
13483730 11#include <linux/inet.h>
afaf5a2d
DS		 12
13#include <scsi/scsi_tcq.h>
14#include <scsi/scsicam.h>
15
16#include "ql4_def.h"
bee4fe8e
DS		 17#include "ql4_version.h"
18#include "ql4_glbl.h"
19#include "ql4_dbg.h"
20#include "ql4_inline.h"
6e7b4292 21#include "ql4_83xx.h"
afaf5a2d
DS		 22
23/*
24 * Driver version
25 */
47975477 26static char qla4xxx_version_str[40];
afaf5a2d
DS		 27
28/*
29 * SRB allocation cache
30 */
e18b890b 31static struct kmem_cache *srb_cachep;
afaf5a2d
DS		 32
33/*
34 * Module parameter information and variables
35 */
a7380a65 36static int ql4xdisablesysfsboot = 1;
13483730
MC		 37module_param(ql4xdisablesysfsboot, int, S_IRUGO | S_IWUSR);
38MODULE_PARM_DESC(ql4xdisablesysfsboot,
a4e8a715
KH		 39 " Set to disable exporting boot targets to sysfs.\n"
40 "\t\t 0 - Export boot targets\n"
41 "\t\t 1 - Do not export boot targets (Default)");
13483730 42
3573bfb2 43int ql4xdontresethba;
f4f5df23 44module_param(ql4xdontresethba, int, S_IRUGO | S_IWUSR);
afaf5a2d 45MODULE_PARM_DESC(ql4xdontresethba,
a4e8a715
KH		 46 " Don't reset the HBA for driver recovery.\n"
47 "\t\t 0 - It will reset HBA (Default)\n"
48 "\t\t 1 - It will NOT reset HBA");
afaf5a2d 49
a4e8a715 50int ql4xextended_error_logging;
f4f5df23 51module_param(ql4xextended_error_logging, int, S_IRUGO | S_IWUSR);
11010fec 52MODULE_PARM_DESC(ql4xextended_error_logging,
a4e8a715
KH		 53 " Option to enable extended error logging.\n"
54 "\t\t 0 - no logging (Default)\n"
55 "\t\t 2 - debug logging");
afaf5a2d 56
f4f5df23
VC		 57int ql4xenablemsix = 1;
58module_param(ql4xenablemsix, int, S_IRUGO|S_IWUSR);
59MODULE_PARM_DESC(ql4xenablemsix,
a4e8a715
KH		 60 " Set to enable MSI or MSI-X interrupt mechanism.\n"
61 "\t\t 0 = enable INTx interrupt mechanism.\n"
62 "\t\t 1 = enable MSI-X interrupt mechanism (Default).\n"
63 "\t\t 2 = enable MSI interrupt mechanism.");
477ffb9d 64
d510d965 65#define QL4_DEF_QDEPTH 32
8bb4033d
VC		 66static int ql4xmaxqdepth = QL4_DEF_QDEPTH;
67module_param(ql4xmaxqdepth, int, S_IRUGO | S_IWUSR);
68MODULE_PARM_DESC(ql4xmaxqdepth,
a4e8a715
KH		 69 " Maximum queue depth to report for target devices.\n"
70 "\t\t Default: 32.");
d510d965 71
f7b4aa63
TP		 72static int ql4xqfulltracking = 1;
73module_param(ql4xqfulltracking, int, S_IRUGO | S_IWUSR);
74MODULE_PARM_DESC(ql4xqfulltracking,
75 " Enable or disable dynamic tracking and adjustment of\n"
76 "\t\t scsi device queue depth.\n"
77 "\t\t 0 - Disable.\n"
78 "\t\t 1 - Enable. (Default)");
79
3038727c
VC		 80static int ql4xsess_recovery_tmo = QL4_SESS_RECOVERY_TMO;
81module_param(ql4xsess_recovery_tmo, int, S_IRUGO);
82MODULE_PARM_DESC(ql4xsess_recovery_tmo,
3573bfb2 83 " Target Session Recovery Timeout.\n"
a4e8a715 84 "\t\t Default: 120 sec.");
3038727c 85
a511b4af 86int ql4xmdcapmask = 0;
068237c8
TP		 87module_param(ql4xmdcapmask, int, S_IRUGO);
88MODULE_PARM_DESC(ql4xmdcapmask,
89 " Set the Minidump driver capture mask level.\n"
a511b4af 90 "\t\t Default is 0 (firmware default capture mask)\n"
b410982c 91 "\t\t Can be set to 0x3, 0x7, 0xF, 0x1F, 0x3F, 0x7F, 0xFF");
068237c8
TP		 92
93int ql4xenablemd = 1;
94module_param(ql4xenablemd, int, S_IRUGO | S_IWUSR);
95MODULE_PARM_DESC(ql4xenablemd,
96 " Set to enable minidump.\n"
97 "\t\t 0 - disable minidump\n"
98 "\t\t 1 - enable minidump (Default)");
99
b3a271a9 100static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha);
afaf5a2d
DS		 101/*
102 * SCSI host template entry points
103 */
47975477 104static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha);
afaf5a2d
DS		 105
106/*
107 * iSCSI template entry points
108 */
fca9f04d
MC		 109static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess,
110 enum iscsi_param param, char *buf);
afaf5a2d
DS		 111static int qla4xxx_conn_get_param(struct iscsi_cls_conn *conn,
112 enum iscsi_param param, char *buf);
aa1e93a2
MC		 113static int qla4xxx_host_get_param(struct Scsi_Host *shost,
114 enum iscsi_host_param param, char *buf);
00c31889
MC		 115static int qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data,
116 uint32_t len);
ed1086e0
VC		 117static int qla4xxx_get_iface_param(struct iscsi_iface *iface,
118 enum iscsi_param_type param_type,
119 int param, char *buf);
5c656af7 120static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc);
b3a271a9
MR		 121static struct iscsi_endpoint *qla4xxx_ep_connect(struct Scsi_Host *shost,
122 struct sockaddr *dst_addr,
123 int non_blocking);
124static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms);
125static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep);
126static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep,
127 enum iscsi_param param, char *buf);
128static int qla4xxx_conn_start(struct iscsi_cls_conn *conn);
129static struct iscsi_cls_conn *
130qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx);
131static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session,
132 struct iscsi_cls_conn *cls_conn,
133 uint64_t transport_fd, int is_leading);
134static void qla4xxx_conn_destroy(struct iscsi_cls_conn *conn);
135static struct iscsi_cls_session *
136qla4xxx_session_create(struct iscsi_endpoint *ep, uint16_t cmds_max,
137 uint16_t qdepth, uint32_t initial_cmdsn);
138static void qla4xxx_session_destroy(struct iscsi_cls_session *sess);
139static void qla4xxx_task_work(struct work_struct *wdata);
140static int qla4xxx_alloc_pdu(struct iscsi_task *, uint8_t);
141static int qla4xxx_task_xmit(struct iscsi_task *);
142static void qla4xxx_task_cleanup(struct iscsi_task *);
143static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session);
144static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn,
145 struct iscsi_stats *stats);
c0b9d3f7
VC		 146static int qla4xxx_send_ping(struct Scsi_Host *shost, uint32_t iface_num,
147 uint32_t iface_type, uint32_t payload_size,
148 uint32_t pid, struct sockaddr *dst_addr);
376738af
NJ		 149static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx,
150 uint32_t *num_entries, char *buf);
151static int qla4xxx_delete_chap(struct Scsi_Host *shost, uint16_t chap_tbl_idx);
26ffd7b4
AC		 152static int qla4xxx_set_chap_entry(struct Scsi_Host *shost, void *data,
153 int len);
4161cee5 154static int qla4xxx_get_host_stats(struct Scsi_Host *shost, char *buf, int len);
c0b9d3f7 155
afaf5a2d
DS		 156/*
157 * SCSI host template entry points
158 */
f281233d 159static int qla4xxx_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *cmd);
09a0f719 160static int qla4xxx_eh_abort(struct scsi_cmnd *cmd);
afaf5a2d 161static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd);
ce545039 162static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd);
afaf5a2d
DS		 163static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd);
164static int qla4xxx_slave_alloc(struct scsi_device *device);
5e9bcec7 165static umode_t qla4_attr_is_visible(int param_type, int param);
95d31262 166static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type);
afaf5a2d 167
1e9e2be3
AC		 168/*
169 * iSCSI Flash DDB sysfs entry points
170 */
171static int
172qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess,
173 struct iscsi_bus_flash_conn *fnode_conn,
174 void *data, int len);
175static int
176qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session *fnode_sess,
177 int param, char *buf);
178static int qla4xxx_sysfs_ddb_add(struct Scsi_Host *shost, const char *buf,
179 int len);
180static int
181qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess);
182static int qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess,
183 struct iscsi_bus_flash_conn *fnode_conn);
184static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess,
185 struct iscsi_bus_flash_conn *fnode_conn);
186static int qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess);
187
f4f5df23
VC		 188static struct qla4_8xxx_legacy_intr_set legacy_intr[] =
189 QLA82XX_LEGACY_INTR_CONFIG;
190
afaf5a2d
DS		 191static struct scsi_host_template qla4xxx_driver_template = {
192 .module = THIS_MODULE,
193 .name = DRIVER_NAME,
194 .proc_name = DRIVER_NAME,
195 .queuecommand = qla4xxx_queuecommand,
196
09a0f719 197 .eh_abort_handler = qla4xxx_eh_abort,
afaf5a2d 198 .eh_device_reset_handler = qla4xxx_eh_device_reset,
ce545039 199 .eh_target_reset_handler = qla4xxx_eh_target_reset,
afaf5a2d 200 .eh_host_reset_handler = qla4xxx_eh_host_reset,
5c656af7 201 .eh_timed_out = qla4xxx_eh_cmd_timed_out,
afaf5a2d 202
afaf5a2d 203 .slave_alloc = qla4xxx_slave_alloc,
db5ed4df 204 .change_queue_depth = scsi_change_queue_depth,
afaf5a2d
DS		 205
206 .this_id = -1,
207 .cmd_per_lun = 3,
afaf5a2d
DS		 208 .sg_tablesize = SG_ALL,
209
210 .max_sectors = 0xFFFF,
7ad633c0 211 .shost_attrs = qla4xxx_host_attrs,
95d31262 212 .host_reset = qla4xxx_host_reset,
a355943c 213 .vendor_id = SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC,
afaf5a2d
DS		 214};
215
216static struct iscsi_transport qla4xxx_iscsi_transport = {
217 .owner = THIS_MODULE,
218 .name = DRIVER_NAME,
b3a271a9
MR		 219 .caps = CAP_TEXT_NEGO |
220 CAP_DATA_PATH_OFFLOAD | CAP_HDRDGST |
221 CAP_DATADGST | CAP_LOGIN_OFFLOAD |
222 CAP_MULTI_R2T,
5e9bcec7 223 .attr_is_visible = qla4_attr_is_visible,
b3a271a9
MR		 224 .create_session = qla4xxx_session_create,
225 .destroy_session = qla4xxx_session_destroy,
226 .start_conn = qla4xxx_conn_start,
227 .create_conn = qla4xxx_conn_create,
228 .bind_conn = qla4xxx_conn_bind,
229 .stop_conn = iscsi_conn_stop,
230 .destroy_conn = qla4xxx_conn_destroy,
231 .set_param = iscsi_set_param,
afaf5a2d 232 .get_conn_param = qla4xxx_conn_get_param,
fca9f04d 233 .get_session_param = qla4xxx_session_get_param,
b3a271a9
MR		 234 .get_ep_param = qla4xxx_get_ep_param,
235 .ep_connect = qla4xxx_ep_connect,
236 .ep_poll = qla4xxx_ep_poll,
237 .ep_disconnect = qla4xxx_ep_disconnect,
238 .get_stats = qla4xxx_conn_get_stats,
239 .send_pdu = iscsi_conn_send_pdu,
240 .xmit_task = qla4xxx_task_xmit,
241 .cleanup_task = qla4xxx_task_cleanup,
242 .alloc_pdu = qla4xxx_alloc_pdu,
243
aa1e93a2 244 .get_host_param = qla4xxx_host_get_param,
d00efe3f 245 .set_iface_param = qla4xxx_iface_set_param,
ed1086e0 246 .get_iface_param = qla4xxx_get_iface_param,
a355943c 247 .bsg_request = qla4xxx_bsg_request,
c0b9d3f7 248 .send_ping = qla4xxx_send_ping,
376738af
NJ		 249 .get_chap = qla4xxx_get_chap_list,
250 .delete_chap = qla4xxx_delete_chap,
26ffd7b4 251 .set_chap = qla4xxx_set_chap_entry,
1e9e2be3
AC		 252 .get_flashnode_param = qla4xxx_sysfs_ddb_get_param,
253 .set_flashnode_param = qla4xxx_sysfs_ddb_set_param,
254 .new_flashnode = qla4xxx_sysfs_ddb_add,
255 .del_flashnode = qla4xxx_sysfs_ddb_delete,
256 .login_flashnode = qla4xxx_sysfs_ddb_login,
257 .logout_flashnode = qla4xxx_sysfs_ddb_logout,
258 .logout_flashnode_sid = qla4xxx_sysfs_ddb_logout_sid,
4161cee5 259 .get_host_stats = qla4xxx_get_host_stats,
afaf5a2d
DS		 260};
261
262static struct scsi_transport_template *qla4xxx_scsi_transport;
263
1bc5ad3a
MR		 264static int qla4xxx_isp_check_reg(struct scsi_qla_host *ha)
265{
266 u32 reg_val = 0;
267 int rval = QLA_SUCCESS;
268
269 if (is_qla8022(ha))
270 reg_val = readl(&ha->qla4_82xx_reg->host_status);
271 else if (is_qla8032(ha) || is_qla8042(ha))
272 reg_val = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_ALIVE_COUNTER);
273 else
274 reg_val = readw(&ha->reg->ctrl_status);
275
276 if (reg_val == QL4_ISP_REG_DISCONNECT)
277 rval = QLA_ERROR;
278
279 return rval;
280}
281
c0b9d3f7
VC		 282static int qla4xxx_send_ping(struct Scsi_Host *shost, uint32_t iface_num,
283 uint32_t iface_type, uint32_t payload_size,
284 uint32_t pid, struct sockaddr *dst_addr)
285{
286 struct scsi_qla_host *ha = to_qla_host(shost);
287 struct sockaddr_in *addr;
288 struct sockaddr_in6 *addr6;
289 uint32_t options = 0;
290 uint8_t ipaddr[IPv6_ADDR_LEN];
291 int rval;
292
293 memset(ipaddr, 0, IPv6_ADDR_LEN);
294 /* IPv4 to IPv4 */
295 if ((iface_type == ISCSI_IFACE_TYPE_IPV4) &&
296 (dst_addr->sa_family == AF_INET)) {
297 addr = (struct sockaddr_in *)dst_addr;
298 memcpy(ipaddr, &addr->sin_addr.s_addr, IP_ADDR_LEN);
299 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv4 Ping src: %pI4 "
300 "dest: %pI4\n", __func__,
301 &ha->ip_config.ip_address, ipaddr));
302 rval = qla4xxx_ping_iocb(ha, options, payload_size, pid,
303 ipaddr);
304 if (rval)
305 rval = -EINVAL;
306 } else if ((iface_type == ISCSI_IFACE_TYPE_IPV6) &&
307 (dst_addr->sa_family == AF_INET6)) {
308 /* IPv6 to IPv6 */
309 addr6 = (struct sockaddr_in6 *)dst_addr;
310 memcpy(ipaddr, &addr6->sin6_addr.in6_u.u6_addr8, IPv6_ADDR_LEN);
311
312 options |= PING_IPV6_PROTOCOL_ENABLE;
313
314 /* Ping using LinkLocal address */
315 if ((iface_num == 0) || (iface_num == 1)) {
316 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: LinkLocal Ping "
317 "src: %pI6 dest: %pI6\n", __func__,
318 &ha->ip_config.ipv6_link_local_addr,
319 ipaddr));
320 options |= PING_IPV6_LINKLOCAL_ADDR;
321 rval = qla4xxx_ping_iocb(ha, options, payload_size,
322 pid, ipaddr);
323 } else {
324 ql4_printk(KERN_WARNING, ha, "%s: iface num = %d "
325 "not supported\n", __func__, iface_num);
326 rval = -ENOSYS;
327 goto exit_send_ping;
328 }
329
330 /*
331 * If ping using LinkLocal address fails, try ping using
332 * IPv6 address
333 */
334 if (rval != QLA_SUCCESS) {
335 options &= ~PING_IPV6_LINKLOCAL_ADDR;
336 if (iface_num == 0) {
337 options |= PING_IPV6_ADDR0;
338 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv6 "
339 "Ping src: %pI6 "
340 "dest: %pI6\n", __func__,
341 &ha->ip_config.ipv6_addr0,
342 ipaddr));
343 } else if (iface_num == 1) {
344 options |= PING_IPV6_ADDR1;
345 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv6 "
346 "Ping src: %pI6 "
347 "dest: %pI6\n", __func__,
348 &ha->ip_config.ipv6_addr1,
349 ipaddr));
350 }
351 rval = qla4xxx_ping_iocb(ha, options, payload_size,
352 pid, ipaddr);
353 if (rval)
354 rval = -EINVAL;
355 }
356 } else
357 rval = -ENOSYS;
358exit_send_ping:
359 return rval;
360}
361
5e9bcec7 362static umode_t qla4_attr_is_visible(int param_type, int param)
3128c6c7
MC		 363{
364 switch (param_type) {
f27fb2ef
MC		 365 case ISCSI_HOST_PARAM:
366 switch (param) {
367 case ISCSI_HOST_PARAM_HWADDRESS:
368 case ISCSI_HOST_PARAM_IPADDRESS:
369 case ISCSI_HOST_PARAM_INITIATOR_NAME:
3254dbe9
VC		 370 case ISCSI_HOST_PARAM_PORT_STATE:
371 case ISCSI_HOST_PARAM_PORT_SPEED:
f27fb2ef
MC		 372 return S_IRUGO;
373 default:
374 return 0;
375 }
3128c6c7
MC		 376 case ISCSI_PARAM:
377 switch (param) {
590134fa
MC		 378 case ISCSI_PARAM_PERSISTENT_ADDRESS:
379 case ISCSI_PARAM_PERSISTENT_PORT:
3128c6c7
MC		 380 case ISCSI_PARAM_CONN_ADDRESS:
381 case ISCSI_PARAM_CONN_PORT:
1d063c17
MC		 382 case ISCSI_PARAM_TARGET_NAME:
383 case ISCSI_PARAM_TPGT:
384 case ISCSI_PARAM_TARGET_ALIAS:
b3a271a9
MR		 385 case ISCSI_PARAM_MAX_BURST:
386 case ISCSI_PARAM_MAX_R2T:
387 case ISCSI_PARAM_FIRST_BURST:
388 case ISCSI_PARAM_MAX_RECV_DLENGTH:
389 case ISCSI_PARAM_MAX_XMIT_DLENGTH:
de37920b 390 case ISCSI_PARAM_IFACE_NAME:
fca9f04d
MC		 391 case ISCSI_PARAM_CHAP_OUT_IDX:
392 case ISCSI_PARAM_CHAP_IN_IDX:
393 case ISCSI_PARAM_USERNAME:
394 case ISCSI_PARAM_PASSWORD:
395 case ISCSI_PARAM_USERNAME_IN:
396 case ISCSI_PARAM_PASSWORD_IN:
8cc91d42
AC		 397 case ISCSI_PARAM_AUTO_SND_TGT_DISABLE:
398 case ISCSI_PARAM_DISCOVERY_SESS:
399 case ISCSI_PARAM_PORTAL_TYPE:
400 case ISCSI_PARAM_CHAP_AUTH_EN:
401 case ISCSI_PARAM_DISCOVERY_LOGOUT_EN:
402 case ISCSI_PARAM_BIDI_CHAP_EN:
403 case ISCSI_PARAM_DISCOVERY_AUTH_OPTIONAL:
404 case ISCSI_PARAM_DEF_TIME2WAIT:
405 case ISCSI_PARAM_DEF_TIME2RETAIN:
406 case ISCSI_PARAM_HDRDGST_EN:
407 case ISCSI_PARAM_DATADGST_EN:
408 case ISCSI_PARAM_INITIAL_R2T_EN:
409 case ISCSI_PARAM_IMM_DATA_EN:
410 case ISCSI_PARAM_PDU_INORDER_EN:
411 case ISCSI_PARAM_DATASEQ_INORDER_EN:
412 case ISCSI_PARAM_MAX_SEGMENT_SIZE:
413 case ISCSI_PARAM_TCP_TIMESTAMP_STAT:
414 case ISCSI_PARAM_TCP_WSF_DISABLE:
415 case ISCSI_PARAM_TCP_NAGLE_DISABLE:
416 case ISCSI_PARAM_TCP_TIMER_SCALE:
417 case ISCSI_PARAM_TCP_TIMESTAMP_EN:
418 case ISCSI_PARAM_TCP_XMIT_WSF:
419 case ISCSI_PARAM_TCP_RECV_WSF:
420 case ISCSI_PARAM_IP_FRAGMENT_DISABLE:
421 case ISCSI_PARAM_IPV4_TOS:
422 case ISCSI_PARAM_IPV6_TC:
423 case ISCSI_PARAM_IPV6_FLOW_LABEL:
424 case ISCSI_PARAM_IS_FW_ASSIGNED_IPV6:
425 case ISCSI_PARAM_KEEPALIVE_TMO:
426 case ISCSI_PARAM_LOCAL_PORT:
427 case ISCSI_PARAM_ISID:
428 case ISCSI_PARAM_TSID:
429 case ISCSI_PARAM_DEF_TASKMGMT_TMO:
430 case ISCSI_PARAM_ERL:
431 case ISCSI_PARAM_STATSN:
432 case ISCSI_PARAM_EXP_STATSN:
433 case ISCSI_PARAM_DISCOVERY_PARENT_IDX:
434 case ISCSI_PARAM_DISCOVERY_PARENT_TYPE:
fb734ee3 435 case ISCSI_PARAM_LOCAL_IPADDR:
3128c6c7
MC		 436 return S_IRUGO;
437 default:
438 return 0;
439 }
b78dbba0
MC		 440 case ISCSI_NET_PARAM:
441 switch (param) {
442 case ISCSI_NET_PARAM_IPV4_ADDR:
443 case ISCSI_NET_PARAM_IPV4_SUBNET:
444 case ISCSI_NET_PARAM_IPV4_GW:
445 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
446 case ISCSI_NET_PARAM_IFACE_ENABLE:
447 case ISCSI_NET_PARAM_IPV6_LINKLOCAL:
448 case ISCSI_NET_PARAM_IPV6_ADDR:
449 case ISCSI_NET_PARAM_IPV6_ROUTER:
450 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG:
451 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG:
6ac73e8c
VC		 452 case ISCSI_NET_PARAM_VLAN_ID:
453 case ISCSI_NET_PARAM_VLAN_PRIORITY:
454 case ISCSI_NET_PARAM_VLAN_ENABLED:
943c157b 455 case ISCSI_NET_PARAM_MTU:
2ada7fc5 456 case ISCSI_NET_PARAM_PORT:
f8e93412
HZ		 457 case ISCSI_NET_PARAM_IPADDR_STATE:
458 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_STATE:
459 case ISCSI_NET_PARAM_IPV6_ROUTER_STATE:
460 case ISCSI_NET_PARAM_DELAYED_ACK_EN:
461 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE:
462 case ISCSI_NET_PARAM_TCP_WSF_DISABLE:
463 case ISCSI_NET_PARAM_TCP_WSF:
464 case ISCSI_NET_PARAM_TCP_TIMER_SCALE:
465 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN:
466 case ISCSI_NET_PARAM_CACHE_ID:
467 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN:
468 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN:
469 case ISCSI_NET_PARAM_IPV4_TOS_EN:
470 case ISCSI_NET_PARAM_IPV4_TOS:
471 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN:
472 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN:
473 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID:
474 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN:
475 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN:
476 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID:
477 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN:
478 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE:
479 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN:
480 case ISCSI_NET_PARAM_REDIRECT_EN:
481 case ISCSI_NET_PARAM_IPV4_TTL:
482 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN:
483 case ISCSI_NET_PARAM_IPV6_MLD_EN:
484 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL:
485 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS:
486 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT:
487 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO:
488 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME:
489 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO:
490 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT:
491 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU:
492 return S_IRUGO;
493 default:
494 return 0;
495 }
496 case ISCSI_IFACE_PARAM:
497 switch (param) {
498 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO:
499 case ISCSI_IFACE_PARAM_HDRDGST_EN:
500 case ISCSI_IFACE_PARAM_DATADGST_EN:
501 case ISCSI_IFACE_PARAM_IMM_DATA_EN:
502 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN:
503 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN:
504 case ISCSI_IFACE_PARAM_PDU_INORDER_EN:
505 case ISCSI_IFACE_PARAM_ERL:
506 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH:
507 case ISCSI_IFACE_PARAM_FIRST_BURST:
508 case ISCSI_IFACE_PARAM_MAX_R2T:
509 case ISCSI_IFACE_PARAM_MAX_BURST:
510 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN:
511 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN:
512 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL:
513 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN:
514 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN:
515 case ISCSI_IFACE_PARAM_INITIATOR_NAME:
b78dbba0
MC		 516 return S_IRUGO;
517 default:
518 return 0;
519 }
1e9e2be3
AC		 520 case ISCSI_FLASHNODE_PARAM:
521 switch (param) {
522 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6:
523 case ISCSI_FLASHNODE_PORTAL_TYPE:
524 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE:
525 case ISCSI_FLASHNODE_DISCOVERY_SESS:
526 case ISCSI_FLASHNODE_ENTRY_EN:
527 case ISCSI_FLASHNODE_HDR_DGST_EN:
528 case ISCSI_FLASHNODE_DATA_DGST_EN:
529 case ISCSI_FLASHNODE_IMM_DATA_EN:
530 case ISCSI_FLASHNODE_INITIAL_R2T_EN:
531 case ISCSI_FLASHNODE_DATASEQ_INORDER:
532 case ISCSI_FLASHNODE_PDU_INORDER:
533 case ISCSI_FLASHNODE_CHAP_AUTH_EN:
534 case ISCSI_FLASHNODE_SNACK_REQ_EN:
535 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN:
536 case ISCSI_FLASHNODE_BIDI_CHAP_EN:
537 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL:
538 case ISCSI_FLASHNODE_ERL:
539 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT:
540 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE:
541 case ISCSI_FLASHNODE_TCP_WSF_DISABLE:
542 case ISCSI_FLASHNODE_TCP_TIMER_SCALE:
543 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN:
544 case ISCSI_FLASHNODE_IP_FRAG_DISABLE:
545 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH:
546 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH:
547 case ISCSI_FLASHNODE_FIRST_BURST:
548 case ISCSI_FLASHNODE_DEF_TIME2WAIT:
549 case ISCSI_FLASHNODE_DEF_TIME2RETAIN:
550 case ISCSI_FLASHNODE_MAX_R2T:
551 case ISCSI_FLASHNODE_KEEPALIVE_TMO:
552 case ISCSI_FLASHNODE_ISID:
553 case ISCSI_FLASHNODE_TSID:
554 case ISCSI_FLASHNODE_PORT:
555 case ISCSI_FLASHNODE_MAX_BURST:
556 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO:
557 case ISCSI_FLASHNODE_IPADDR:
558 case ISCSI_FLASHNODE_ALIAS:
559 case ISCSI_FLASHNODE_REDIRECT_IPADDR:
560 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE:
561 case ISCSI_FLASHNODE_LOCAL_PORT:
562 case ISCSI_FLASHNODE_IPV4_TOS:
563 case ISCSI_FLASHNODE_IPV6_TC:
564 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL:
565 case ISCSI_FLASHNODE_NAME:
566 case ISCSI_FLASHNODE_TPGT:
567 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6:
568 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX:
569 case ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE:
570 case ISCSI_FLASHNODE_TCP_XMIT_WSF:
571 case ISCSI_FLASHNODE_TCP_RECV_WSF:
572 case ISCSI_FLASHNODE_CHAP_OUT_IDX:
573 case ISCSI_FLASHNODE_USERNAME:
574 case ISCSI_FLASHNODE_PASSWORD:
575 case ISCSI_FLASHNODE_STATSN:
576 case ISCSI_FLASHNODE_EXP_STATSN:
577 case ISCSI_FLASHNODE_IS_BOOT_TGT:
578 return S_IRUGO;
579 default:
580 return 0;
581 }
3128c6c7
MC		 582 }
583
584 return 0;
585}
586
ea507a25
AC		 587/**
588 * qla4xxx_create chap_list - Create CHAP list from FLASH
589 * @ha: pointer to adapter structure
590 *
591 * Read flash and make a list of CHAP entries, during login when a CHAP entry
592 * is received, it will be checked in this list. If entry exist then the CHAP
593 * entry index is set in the DDB. If CHAP entry does not exist in this list
594 * then a new entry is added in FLASH in CHAP table and the index obtained is
595 * used in the DDB.
596 **/
597static void qla4xxx_create_chap_list(struct scsi_qla_host *ha)
598{
599 int rval = 0;
600 uint8_t *chap_flash_data = NULL;
601 uint32_t offset;
602 dma_addr_t chap_dma;
603 uint32_t chap_size = 0;
604
605 if (is_qla40XX(ha))
606 chap_size = MAX_CHAP_ENTRIES_40XX *
607 sizeof(struct ql4_chap_table);
608 else /* Single region contains CHAP info for both
609 * ports which is divided into half for each port.
610 */
611 chap_size = ha->hw.flt_chap_size / 2;
612
613 chap_flash_data = dma_alloc_coherent(&ha->pdev->dev, chap_size,
614 &chap_dma, GFP_KERNEL);
615 if (!chap_flash_data) {
616 ql4_printk(KERN_ERR, ha, "No memory for chap_flash_data\n");
617 return;
618 }
619
620 if (is_qla40XX(ha)) {
621 offset = FLASH_CHAP_OFFSET;
622 } else {
623 offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2);
624 if (ha->port_num == 1)
625 offset += chap_size;
626 }
627
628 rval = qla4xxx_get_flash(ha, chap_dma, offset, chap_size);
629 if (rval != QLA_SUCCESS)
630 goto exit_chap_list;
631
632 if (ha->chap_list == NULL)
633 ha->chap_list = vmalloc(chap_size);
634 if (ha->chap_list == NULL) {
635 ql4_printk(KERN_ERR, ha, "No memory for ha->chap_list\n");
636 goto exit_chap_list;
637 }
638
639 memset(ha->chap_list, 0, chap_size);
640 memcpy(ha->chap_list, chap_flash_data, chap_size);
641
642exit_chap_list:
643 dma_free_coherent(&ha->pdev->dev, chap_size, chap_flash_data, chap_dma);
644}
645
26ffd7b4
AC		 646static int qla4xxx_get_chap_by_index(struct scsi_qla_host *ha,
647 int16_t chap_index,
648 struct ql4_chap_table **chap_entry)
649{
650 int rval = QLA_ERROR;
651 int max_chap_entries;
652
653 if (!ha->chap_list) {
654 ql4_printk(KERN_ERR, ha, "CHAP table cache is empty!\n");
655 rval = QLA_ERROR;
656 goto exit_get_chap;
657 }
658
659 if (is_qla80XX(ha))
660 max_chap_entries = (ha->hw.flt_chap_size / 2) /
661 sizeof(struct ql4_chap_table);
662 else
663 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
664
665 if (chap_index > max_chap_entries) {
666 ql4_printk(KERN_ERR, ha, "Invalid Chap index\n");
667 rval = QLA_ERROR;
668 goto exit_get_chap;
669 }
670
671 *chap_entry = (struct ql4_chap_table *)ha->chap_list + chap_index;
672 if ((*chap_entry)->cookie !=
673 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) {
674 rval = QLA_ERROR;
675 *chap_entry = NULL;
676 } else {
677 rval = QLA_SUCCESS;
678 }
679
680exit_get_chap:
681 return rval;
682}
683
684/**
685 * qla4xxx_find_free_chap_index - Find the first free chap index
686 * @ha: pointer to adapter structure
687 * @chap_index: CHAP index to be returned
688 *
689 * Find the first free chap index available in the chap table
690 *
691 * Note: Caller should acquire the chap lock before getting here.
692 **/
693static int qla4xxx_find_free_chap_index(struct scsi_qla_host *ha,
694 uint16_t *chap_index)
695{
696 int i, rval;
697 int free_index = -1;
698 int max_chap_entries = 0;
699 struct ql4_chap_table *chap_table;
700
701 if (is_qla80XX(ha))
702 max_chap_entries = (ha->hw.flt_chap_size / 2) /
703 sizeof(struct ql4_chap_table);
704 else
705 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
706
707 if (!ha->chap_list) {
708 ql4_printk(KERN_ERR, ha, "CHAP table cache is empty!\n");
709 rval = QLA_ERROR;
710 goto exit_find_chap;
711 }
712
713 for (i = 0; i < max_chap_entries; i++) {
714 chap_table = (struct ql4_chap_table *)ha->chap_list + i;
715
716 if ((chap_table->cookie !=
717 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) &&
718 (i > MAX_RESRV_CHAP_IDX)) {
719 free_index = i;
720 break;
721 }
722 }
723
724 if (free_index != -1) {
725 *chap_index = free_index;
726 rval = QLA_SUCCESS;
727 } else {
728 rval = QLA_ERROR;
729 }
730
731exit_find_chap:
732 return rval;
733}
734
376738af
NJ		 735static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx,
736 uint32_t *num_entries, char *buf)
737{
738 struct scsi_qla_host *ha = to_qla_host(shost);
739 struct ql4_chap_table *chap_table;
740 struct iscsi_chap_rec *chap_rec;
741 int max_chap_entries = 0;
742 int valid_chap_entries = 0;
743 int ret = 0, i;
744
d11b0ca3 745 if (is_qla80XX(ha))
376738af
NJ		 746 max_chap_entries = (ha->hw.flt_chap_size / 2) /
747 sizeof(struct ql4_chap_table);
748 else
749 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
750
751 ql4_printk(KERN_INFO, ha, "%s: num_entries = %d, CHAP idx = %d\n",
752 __func__, *num_entries, chap_tbl_idx);
753
754 if (!buf) {
755 ret = -ENOMEM;
756 goto exit_get_chap_list;
757 }
758
ea507a25
AC		 759 qla4xxx_create_chap_list(ha);
760
376738af
NJ		 761 chap_rec = (struct iscsi_chap_rec *) buf;
762 mutex_lock(&ha->chap_sem);
763 for (i = chap_tbl_idx; i < max_chap_entries; i++) {
764 chap_table = (struct ql4_chap_table *)ha->chap_list + i;
765 if (chap_table->cookie !=
766 __constant_cpu_to_le16(CHAP_VALID_COOKIE))
767 continue;
768
769 chap_rec->chap_tbl_idx = i;
bdbb9662 770 strlcpy(chap_rec->username, chap_table->name,
376738af 771 ISCSI_CHAP_AUTH_NAME_MAX_LEN);
bdbb9662 772 strlcpy(chap_rec->password, chap_table->secret,
376738af
NJ		 773 QL4_CHAP_MAX_SECRET_LEN);
774 chap_rec->password_length = chap_table->secret_len;
775
776 if (chap_table->flags & BIT_7) /* local */
777 chap_rec->chap_type = CHAP_TYPE_OUT;
778
779 if (chap_table->flags & BIT_6) /* peer */
780 chap_rec->chap_type = CHAP_TYPE_IN;
781
782 chap_rec++;
783
784 valid_chap_entries++;
785 if (valid_chap_entries == *num_entries)
786 break;
787 else
788 continue;
789 }
790 mutex_unlock(&ha->chap_sem);
791
792exit_get_chap_list:
793 ql4_printk(KERN_INFO, ha, "%s: Valid CHAP Entries = %d\n",
794 __func__, valid_chap_entries);
795 *num_entries = valid_chap_entries;
796 return ret;
797}
798
799static int __qla4xxx_is_chap_active(struct device *dev, void *data)
800{
801 int ret = 0;
802 uint16_t *chap_tbl_idx = (uint16_t *) data;
803 struct iscsi_cls_session *cls_session;
804 struct iscsi_session *sess;
805 struct ddb_entry *ddb_entry;
806
807 if (!iscsi_is_session_dev(dev))
808 goto exit_is_chap_active;
809
810 cls_session = iscsi_dev_to_session(dev);
811 sess = cls_session->dd_data;
812 ddb_entry = sess->dd_data;
813
814 if (iscsi_session_chkready(cls_session))
815 goto exit_is_chap_active;
816
817 if (ddb_entry->chap_tbl_idx == *chap_tbl_idx)
818 ret = 1;
819
820exit_is_chap_active:
821 return ret;
822}
823
824static int qla4xxx_is_chap_active(struct Scsi_Host *shost,
825 uint16_t chap_tbl_idx)
826{
827 int ret = 0;
828
829 ret = device_for_each_child(&shost->shost_gendev, &chap_tbl_idx,
830 __qla4xxx_is_chap_active);
831
832 return ret;
833}
834
835static int qla4xxx_delete_chap(struct Scsi_Host *shost, uint16_t chap_tbl_idx)
836{
837 struct scsi_qla_host *ha = to_qla_host(shost);
838 struct ql4_chap_table *chap_table;
839 dma_addr_t chap_dma;
840 int max_chap_entries = 0;
841 uint32_t offset = 0;
842 uint32_t chap_size;
843 int ret = 0;
844
8d35a9dc 845 chap_table = dma_pool_zalloc(ha->chap_dma_pool, GFP_KERNEL, &chap_dma);
376738af
NJ		 846 if (chap_table == NULL)
847 return -ENOMEM;
848
d11b0ca3 849 if (is_qla80XX(ha))
376738af
NJ		 850 max_chap_entries = (ha->hw.flt_chap_size / 2) /
851 sizeof(struct ql4_chap_table);
852 else
853 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
854
855 if (chap_tbl_idx > max_chap_entries) {
856 ret = -EINVAL;
857 goto exit_delete_chap;
858 }
859
860 /* Check if chap index is in use.
861 * If chap is in use don't delet chap entry */
862 ret = qla4xxx_is_chap_active(shost, chap_tbl_idx);
863 if (ret) {
864 ql4_printk(KERN_INFO, ha, "CHAP entry %d is in use, cannot "
865 "delete from flash\n", chap_tbl_idx);
866 ret = -EBUSY;
867 goto exit_delete_chap;
868 }
869
870 chap_size = sizeof(struct ql4_chap_table);
871 if (is_qla40XX(ha))
872 offset = FLASH_CHAP_OFFSET | (chap_tbl_idx * chap_size);
873 else {
874 offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2);
875 /* flt_chap_size is CHAP table size for both ports
876 * so divide it by 2 to calculate the offset for second port
877 */
878 if (ha->port_num == 1)
879 offset += (ha->hw.flt_chap_size / 2);
880 offset += (chap_tbl_idx * chap_size);
881 }
882
883 ret = qla4xxx_get_flash(ha, chap_dma, offset, chap_size);
884 if (ret != QLA_SUCCESS) {
885 ret = -EINVAL;
886 goto exit_delete_chap;
887 }
888
889 DEBUG2(ql4_printk(KERN_INFO, ha, "Chap Cookie: x%x\n",
890 __le16_to_cpu(chap_table->cookie)));
891
892 if (__le16_to_cpu(chap_table->cookie) != CHAP_VALID_COOKIE) {
893 ql4_printk(KERN_ERR, ha, "No valid chap entry found\n");
894 goto exit_delete_chap;
895 }
896
897 chap_table->cookie = __constant_cpu_to_le16(0xFFFF);
898
899 offset = FLASH_CHAP_OFFSET |
900 (chap_tbl_idx * sizeof(struct ql4_chap_table));
901 ret = qla4xxx_set_flash(ha, chap_dma, offset, chap_size,
902 FLASH_OPT_RMW_COMMIT);
903 if (ret == QLA_SUCCESS && ha->chap_list) {
904 mutex_lock(&ha->chap_sem);
905 /* Update ha chap_list cache */
906 memcpy((struct ql4_chap_table *)ha->chap_list + chap_tbl_idx,
907 chap_table, sizeof(struct ql4_chap_table));
908 mutex_unlock(&ha->chap_sem);
909 }
910 if (ret != QLA_SUCCESS)
911 ret = -EINVAL;
912
913exit_delete_chap:
914 dma_pool_free(ha->chap_dma_pool, chap_table, chap_dma);
915 return ret;
916}
917
26ffd7b4
AC		 918/**
919 * qla4xxx_set_chap_entry - Make chap entry with given information
920 * @shost: pointer to host
921 * @data: chap info - credentials, index and type to make chap entry
922 * @len: length of data
923 *
924 * Add or update chap entry with the given information
925 **/
926static int qla4xxx_set_chap_entry(struct Scsi_Host *shost, void *data, int len)
927{
928 struct scsi_qla_host *ha = to_qla_host(shost);
929 struct iscsi_chap_rec chap_rec;
930 struct ql4_chap_table *chap_entry = NULL;
931 struct iscsi_param_info *param_info;
932 struct nlattr *attr;
933 int max_chap_entries = 0;
934 int type;
935 int rem = len;
936 int rc = 0;
3c60cfd7 937 int size;
26ffd7b4
AC		 938
939 memset(&chap_rec, 0, sizeof(chap_rec));
940
941 nla_for_each_attr(attr, data, len, rem) {
942 param_info = nla_data(attr);
943
944 switch (param_info->param) {
945 case ISCSI_CHAP_PARAM_INDEX:
946 chap_rec.chap_tbl_idx = *(uint16_t *)param_info->value;
947 break;
948 case ISCSI_CHAP_PARAM_CHAP_TYPE:
949 chap_rec.chap_type = param_info->value[0];
950 break;
951 case ISCSI_CHAP_PARAM_USERNAME:
3c60cfd7
DC		 952 size = min_t(size_t, sizeof(chap_rec.username),
953 param_info->len);
954 memcpy(chap_rec.username, param_info->value, size);
26ffd7b4
AC		 955 break;
956 case ISCSI_CHAP_PARAM_PASSWORD:
3c60cfd7
DC		 957 size = min_t(size_t, sizeof(chap_rec.password),
958 param_info->len);
959 memcpy(chap_rec.password, param_info->value, size);
26ffd7b4
AC		 960 break;
961 case ISCSI_CHAP_PARAM_PASSWORD_LEN:
962 chap_rec.password_length = param_info->value[0];
963 break;
964 default:
965 ql4_printk(KERN_ERR, ha,
966 "%s: No such sysfs attribute\n", __func__);
967 rc = -ENOSYS;
968 goto exit_set_chap;
969 };
970 }
971
972 if (chap_rec.chap_type == CHAP_TYPE_IN)
973 type = BIDI_CHAP;
974 else
975 type = LOCAL_CHAP;
976
977 if (is_qla80XX(ha))
978 max_chap_entries = (ha->hw.flt_chap_size / 2) /
979 sizeof(struct ql4_chap_table);
980 else
981 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
982
983 mutex_lock(&ha->chap_sem);
984 if (chap_rec.chap_tbl_idx < max_chap_entries) {
985 rc = qla4xxx_get_chap_by_index(ha, chap_rec.chap_tbl_idx,
986 &chap_entry);
987 if (!rc) {
988 if (!(type == qla4xxx_get_chap_type(chap_entry))) {
989 ql4_printk(KERN_INFO, ha,
990 "Type mismatch for CHAP entry %d\n",
991 chap_rec.chap_tbl_idx);
992 rc = -EINVAL;
993 goto exit_unlock_chap;
994 }
995
996 /* If chap index is in use then don't modify it */
997 rc = qla4xxx_is_chap_active(shost,
998 chap_rec.chap_tbl_idx);
999 if (rc) {
1000 ql4_printk(KERN_INFO, ha,
1001 "CHAP entry %d is in use\n",
1002 chap_rec.chap_tbl_idx);
1003 rc = -EBUSY;
1004 goto exit_unlock_chap;
1005 }
1006 }
1007 } else {
1008 rc = qla4xxx_find_free_chap_index(ha, &chap_rec.chap_tbl_idx);
1009 if (rc) {
1010 ql4_printk(KERN_INFO, ha, "CHAP entry not available\n");
1011 rc = -EBUSY;
1012 goto exit_unlock_chap;
1013 }
1014 }
1015
1016 rc = qla4xxx_set_chap(ha, chap_rec.username, chap_rec.password,
1017 chap_rec.chap_tbl_idx, type);
1018
1019exit_unlock_chap:
1020 mutex_unlock(&ha->chap_sem);
1021
1022exit_set_chap:
1023 return rc;
1024}
1025
4161cee5
LC		 1026
1027static int qla4xxx_get_host_stats(struct Scsi_Host *shost, char *buf, int len)
1028{
1029 struct scsi_qla_host *ha = to_qla_host(shost);
1030 struct iscsi_offload_host_stats *host_stats = NULL;
1031 int host_stats_size;
1032 int ret = 0;
1033 int ddb_idx = 0;
1034 struct ql_iscsi_stats *ql_iscsi_stats = NULL;
1035 int stats_size;
1036 dma_addr_t iscsi_stats_dma;
1037
1038 DEBUG2(ql4_printk(KERN_INFO, ha, "Func: %s\n", __func__));
1039
1040 host_stats_size = sizeof(struct iscsi_offload_host_stats);
1041
1042 if (host_stats_size != len) {
1043 ql4_printk(KERN_INFO, ha, "%s: host_stats size mismatch expected = %d, is = %d\n",
1044 __func__, len, host_stats_size);
1045 ret = -EINVAL;
1046 goto exit_host_stats;
1047 }
1048 host_stats = (struct iscsi_offload_host_stats *)buf;
1049
1050 if (!buf) {
1051 ret = -ENOMEM;
1052 goto exit_host_stats;
1053 }
1054
1055 stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats));
1056
1057 ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size,
1058 &iscsi_stats_dma, GFP_KERNEL);
1059 if (!ql_iscsi_stats) {
1060 ql4_printk(KERN_ERR, ha,
1061 "Unable to allocate memory for iscsi stats\n");
7f3976f0 1062 ret = -ENOMEM;
4161cee5
LC		 1063 goto exit_host_stats;
1064 }
1065
1066 ret = qla4xxx_get_mgmt_data(ha, ddb_idx, stats_size,
1067 iscsi_stats_dma);
1068 if (ret != QLA_SUCCESS) {
1069 ql4_printk(KERN_ERR, ha,
1070 "Unable to retrieve iscsi stats\n");
7f3976f0 1071 ret = -EIO;
4161cee5
LC		 1072 goto exit_host_stats;
1073 }
1074 host_stats->mactx_frames = le64_to_cpu(ql_iscsi_stats->mac_tx_frames);
1075 host_stats->mactx_bytes = le64_to_cpu(ql_iscsi_stats->mac_tx_bytes);
1076 host_stats->mactx_multicast_frames =
1077 le64_to_cpu(ql_iscsi_stats->mac_tx_multicast_frames);
1078 host_stats->mactx_broadcast_frames =
1079 le64_to_cpu(ql_iscsi_stats->mac_tx_broadcast_frames);
1080 host_stats->mactx_pause_frames =
1081 le64_to_cpu(ql_iscsi_stats->mac_tx_pause_frames);
1082 host_stats->mactx_control_frames =
1083 le64_to_cpu(ql_iscsi_stats->mac_tx_control_frames);
1084 host_stats->mactx_deferral =
1085 le64_to_cpu(ql_iscsi_stats->mac_tx_deferral);
1086 host_stats->mactx_excess_deferral =
1087 le64_to_cpu(ql_iscsi_stats->mac_tx_excess_deferral);
1088 host_stats->mactx_late_collision =
1089 le64_to_cpu(ql_iscsi_stats->mac_tx_late_collision);
1090 host_stats->mactx_abort = le64_to_cpu(ql_iscsi_stats->mac_tx_abort);
1091 host_stats->mactx_single_collision =
1092 le64_to_cpu(ql_iscsi_stats->mac_tx_single_collision);
1093 host_stats->mactx_multiple_collision =
1094 le64_to_cpu(ql_iscsi_stats->mac_tx_multiple_collision);
1095 host_stats->mactx_collision =
1096 le64_to_cpu(ql_iscsi_stats->mac_tx_collision);
1097 host_stats->mactx_frames_dropped =
1098 le64_to_cpu(ql_iscsi_stats->mac_tx_frames_dropped);
1099 host_stats->mactx_jumbo_frames =
1100 le64_to_cpu(ql_iscsi_stats->mac_tx_jumbo_frames);
1101 host_stats->macrx_frames = le64_to_cpu(ql_iscsi_stats->mac_rx_frames);
1102 host_stats->macrx_bytes = le64_to_cpu(ql_iscsi_stats->mac_rx_bytes);
1103 host_stats->macrx_unknown_control_frames =
1104 le64_to_cpu(ql_iscsi_stats->mac_rx_unknown_control_frames);
1105 host_stats->macrx_pause_frames =
1106 le64_to_cpu(ql_iscsi_stats->mac_rx_pause_frames);
1107 host_stats->macrx_control_frames =
1108 le64_to_cpu(ql_iscsi_stats->mac_rx_control_frames);
1109 host_stats->macrx_dribble =
1110 le64_to_cpu(ql_iscsi_stats->mac_rx_dribble);
1111 host_stats->macrx_frame_length_error =
1112 le64_to_cpu(ql_iscsi_stats->mac_rx_frame_length_error);
1113 host_stats->macrx_jabber = le64_to_cpu(ql_iscsi_stats->mac_rx_jabber);
1114 host_stats->macrx_carrier_sense_error =
1115 le64_to_cpu(ql_iscsi_stats->mac_rx_carrier_sense_error);
1116 host_stats->macrx_frame_discarded =
1117 le64_to_cpu(ql_iscsi_stats->mac_rx_frame_discarded);
1118 host_stats->macrx_frames_dropped =
1119 le64_to_cpu(ql_iscsi_stats->mac_rx_frames_dropped);
1120 host_stats->mac_crc_error = le64_to_cpu(ql_iscsi_stats->mac_crc_error);
1121 host_stats->mac_encoding_error =
1122 le64_to_cpu(ql_iscsi_stats->mac_encoding_error);
1123 host_stats->macrx_length_error_large =
1124 le64_to_cpu(ql_iscsi_stats->mac_rx_length_error_large);
1125 host_stats->macrx_length_error_small =
1126 le64_to_cpu(ql_iscsi_stats->mac_rx_length_error_small);
1127 host_stats->macrx_multicast_frames =
1128 le64_to_cpu(ql_iscsi_stats->mac_rx_multicast_frames);
1129 host_stats->macrx_broadcast_frames =
1130 le64_to_cpu(ql_iscsi_stats->mac_rx_broadcast_frames);
1131 host_stats->iptx_packets = le64_to_cpu(ql_iscsi_stats->ip_tx_packets);
1132 host_stats->iptx_bytes = le64_to_cpu(ql_iscsi_stats->ip_tx_bytes);
1133 host_stats->iptx_fragments =
1134 le64_to_cpu(ql_iscsi_stats->ip_tx_fragments);
1135 host_stats->iprx_packets = le64_to_cpu(ql_iscsi_stats->ip_rx_packets);
1136 host_stats->iprx_bytes = le64_to_cpu(ql_iscsi_stats->ip_rx_bytes);
1137 host_stats->iprx_fragments =
1138 le64_to_cpu(ql_iscsi_stats->ip_rx_fragments);
1139 host_stats->ip_datagram_reassembly =
1140 le64_to_cpu(ql_iscsi_stats->ip_datagram_reassembly);
1141 host_stats->ip_invalid_address_error =
1142 le64_to_cpu(ql_iscsi_stats->ip_invalid_address_error);
1143 host_stats->ip_error_packets =
1144 le64_to_cpu(ql_iscsi_stats->ip_error_packets);
1145 host_stats->ip_fragrx_overlap =
1146 le64_to_cpu(ql_iscsi_stats->ip_fragrx_overlap);
1147 host_stats->ip_fragrx_outoforder =
1148 le64_to_cpu(ql_iscsi_stats->ip_fragrx_outoforder);
1149 host_stats->ip_datagram_reassembly_timeout =
1150 le64_to_cpu(ql_iscsi_stats->ip_datagram_reassembly_timeout);
1151 host_stats->ipv6tx_packets =
1152 le64_to_cpu(ql_iscsi_stats->ipv6_tx_packets);
1153 host_stats->ipv6tx_bytes = le64_to_cpu(ql_iscsi_stats->ipv6_tx_bytes);
1154 host_stats->ipv6tx_fragments =
1155 le64_to_cpu(ql_iscsi_stats->ipv6_tx_fragments);
1156 host_stats->ipv6rx_packets =
1157 le64_to_cpu(ql_iscsi_stats->ipv6_rx_packets);
1158 host_stats->ipv6rx_bytes = le64_to_cpu(ql_iscsi_stats->ipv6_rx_bytes);
1159 host_stats->ipv6rx_fragments =
1160 le64_to_cpu(ql_iscsi_stats->ipv6_rx_fragments);
1161 host_stats->ipv6_datagram_reassembly =
1162 le64_to_cpu(ql_iscsi_stats->ipv6_datagram_reassembly);
1163 host_stats->ipv6_invalid_address_error =
1164 le64_to_cpu(ql_iscsi_stats->ipv6_invalid_address_error);
1165 host_stats->ipv6_error_packets =
1166 le64_to_cpu(ql_iscsi_stats->ipv6_error_packets);
1167 host_stats->ipv6_fragrx_overlap =
1168 le64_to_cpu(ql_iscsi_stats->ipv6_fragrx_overlap);
1169 host_stats->ipv6_fragrx_outoforder =
1170 le64_to_cpu(ql_iscsi_stats->ipv6_fragrx_outoforder);
1171 host_stats->ipv6_datagram_reassembly_timeout =
1172 le64_to_cpu(ql_iscsi_stats->ipv6_datagram_reassembly_timeout);
1173 host_stats->tcptx_segments =
1174 le64_to_cpu(ql_iscsi_stats->tcp_tx_segments);
1175 host_stats->tcptx_bytes = le64_to_cpu(ql_iscsi_stats->tcp_tx_bytes);
1176 host_stats->tcprx_segments =
1177 le64_to_cpu(ql_iscsi_stats->tcp_rx_segments);
1178 host_stats->tcprx_byte = le64_to_cpu(ql_iscsi_stats->tcp_rx_byte);
1179 host_stats->tcp_duplicate_ack_retx =
1180 le64_to_cpu(ql_iscsi_stats->tcp_duplicate_ack_retx);
1181 host_stats->tcp_retx_timer_expired =
1182 le64_to_cpu(ql_iscsi_stats->tcp_retx_timer_expired);
1183 host_stats->tcprx_duplicate_ack =
1184 le64_to_cpu(ql_iscsi_stats->tcp_rx_duplicate_ack);
1185 host_stats->tcprx_pure_ackr =
1186 le64_to_cpu(ql_iscsi_stats->tcp_rx_pure_ackr);
1187 host_stats->tcptx_delayed_ack =
1188 le64_to_cpu(ql_iscsi_stats->tcp_tx_delayed_ack);
1189 host_stats->tcptx_pure_ack =
1190 le64_to_cpu(ql_iscsi_stats->tcp_tx_pure_ack);
1191 host_stats->tcprx_segment_error =
1192 le64_to_cpu(ql_iscsi_stats->tcp_rx_segment_error);
1193 host_stats->tcprx_segment_outoforder =
1194 le64_to_cpu(ql_iscsi_stats->tcp_rx_segment_outoforder);
1195 host_stats->tcprx_window_probe =
1196 le64_to_cpu(ql_iscsi_stats->tcp_rx_window_probe);
1197 host_stats->tcprx_window_update =
1198 le64_to_cpu(ql_iscsi_stats->tcp_rx_window_update);
1199 host_stats->tcptx_window_probe_persist =
1200 le64_to_cpu(ql_iscsi_stats->tcp_tx_window_probe_persist);
1201 host_stats->ecc_error_correction =
1202 le64_to_cpu(ql_iscsi_stats->ecc_error_correction);
1203 host_stats->iscsi_pdu_tx = le64_to_cpu(ql_iscsi_stats->iscsi_pdu_tx);
1204 host_stats->iscsi_data_bytes_tx =
1205 le64_to_cpu(ql_iscsi_stats->iscsi_data_bytes_tx);
1206 host_stats->iscsi_pdu_rx = le64_to_cpu(ql_iscsi_stats->iscsi_pdu_rx);
1207 host_stats->iscsi_data_bytes_rx =
1208 le64_to_cpu(ql_iscsi_stats->iscsi_data_bytes_rx);
1209 host_stats->iscsi_io_completed =
1210 le64_to_cpu(ql_iscsi_stats->iscsi_io_completed);
1211 host_stats->iscsi_unexpected_io_rx =
1212 le64_to_cpu(ql_iscsi_stats->iscsi_unexpected_io_rx);
1213 host_stats->iscsi_format_error =
1214 le64_to_cpu(ql_iscsi_stats->iscsi_format_error);
1215 host_stats->iscsi_hdr_digest_error =
1216 le64_to_cpu(ql_iscsi_stats->iscsi_hdr_digest_error);
1217 host_stats->iscsi_data_digest_error =
1218 le64_to_cpu(ql_iscsi_stats->iscsi_data_digest_error);
1219 host_stats->iscsi_sequence_error =
1220 le64_to_cpu(ql_iscsi_stats->iscsi_sequence_error);
1221exit_host_stats:
1222 if (ql_iscsi_stats)
1223 dma_free_coherent(&ha->pdev->dev, host_stats_size,
1224 ql_iscsi_stats, iscsi_stats_dma);
1225
1226 ql4_printk(KERN_INFO, ha, "%s: Get host stats done\n",
1227 __func__);
1228 return ret;
1229}
1230
ed1086e0
VC		 1231static int qla4xxx_get_iface_param(struct iscsi_iface *iface,
1232 enum iscsi_param_type param_type,
1233 int param, char *buf)
1234{
1235 struct Scsi_Host *shost = iscsi_iface_to_shost(iface);
1236 struct scsi_qla_host *ha = to_qla_host(shost);
f8e93412
HZ		 1237 int ival;
1238 char *pval = NULL;
ed1086e0
VC		 1239 int len = -ENOSYS;
1240
f8e93412
HZ		 1241 if (param_type == ISCSI_NET_PARAM) {
1242 switch (param) {
1243 case ISCSI_NET_PARAM_IPV4_ADDR:
1244 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address);
1245 break;
1246 case ISCSI_NET_PARAM_IPV4_SUBNET:
1247 len = sprintf(buf, "%pI4\n",
1248 &ha->ip_config.subnet_mask);
1249 break;
1250 case ISCSI_NET_PARAM_IPV4_GW:
1251 len = sprintf(buf, "%pI4\n", &ha->ip_config.gateway);
1252 break;
1253 case ISCSI_NET_PARAM_IFACE_ENABLE:
1254 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1255 OP_STATE(ha->ip_config.ipv4_options,
1256 IPOPT_IPV4_PROTOCOL_ENABLE, pval);
1257 } else {
1258 OP_STATE(ha->ip_config.ipv6_options,
1259 IPV6_OPT_IPV6_PROTOCOL_ENABLE, pval);
1260 }
ed1086e0 1261
f8e93412
HZ		 1262 len = sprintf(buf, "%s\n", pval);
1263 break;
1264 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
ed1086e0 1265 len = sprintf(buf, "%s\n",
f8e93412
HZ		 1266 (ha->ip_config.tcp_options &
1267 TCPOPT_DHCP_ENABLE) ?
1268 "dhcp" : "static");
1269 break;
1270 case ISCSI_NET_PARAM_IPV6_ADDR:
1271 if (iface->iface_num == 0)
1272 len = sprintf(buf, "%pI6\n",
1273 &ha->ip_config.ipv6_addr0);
1274 if (iface->iface_num == 1)
1275 len = sprintf(buf, "%pI6\n",
1276 &ha->ip_config.ipv6_addr1);
1277 break;
1278 case ISCSI_NET_PARAM_IPV6_LINKLOCAL:
1279 len = sprintf(buf, "%pI6\n",
1280 &ha->ip_config.ipv6_link_local_addr);
1281 break;
1282 case ISCSI_NET_PARAM_IPV6_ROUTER:
1283 len = sprintf(buf, "%pI6\n",
1284 &ha->ip_config.ipv6_default_router_addr);
1285 break;
1286 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG:
1287 pval = (ha->ip_config.ipv6_addl_options &
1288 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE) ?
1289 "nd" : "static";
1290
1291 len = sprintf(buf, "%s\n", pval);
1292 break;
1293 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG:
1294 pval = (ha->ip_config.ipv6_addl_options &
1295 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR) ?
1296 "auto" : "static";
1297
1298 len = sprintf(buf, "%s\n", pval);
1299 break;
1300 case ISCSI_NET_PARAM_VLAN_ID:
1301 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1302 ival = ha->ip_config.ipv4_vlan_tag &
1303 ISCSI_MAX_VLAN_ID;
1304 else
1305 ival = ha->ip_config.ipv6_vlan_tag &
1306 ISCSI_MAX_VLAN_ID;
1307
1308 len = sprintf(buf, "%d\n", ival);
1309 break;
1310 case ISCSI_NET_PARAM_VLAN_PRIORITY:
1311 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1312 ival = (ha->ip_config.ipv4_vlan_tag >> 13) &
1313 ISCSI_MAX_VLAN_PRIORITY;
1314 else
1315 ival = (ha->ip_config.ipv6_vlan_tag >> 13) &
1316 ISCSI_MAX_VLAN_PRIORITY;
1317
1318 len = sprintf(buf, "%d\n", ival);
1319 break;
1320 case ISCSI_NET_PARAM_VLAN_ENABLED:
1321 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1322 OP_STATE(ha->ip_config.ipv4_options,
1323 IPOPT_VLAN_TAGGING_ENABLE, pval);
1324 } else {
1325 OP_STATE(ha->ip_config.ipv6_options,
1326 IPV6_OPT_VLAN_TAGGING_ENABLE, pval);
1327 }
1328 len = sprintf(buf, "%s\n", pval);
1329 break;
1330 case ISCSI_NET_PARAM_MTU:
1331 len = sprintf(buf, "%d\n", ha->ip_config.eth_mtu_size);
1332 break;
1333 case ISCSI_NET_PARAM_PORT:
1334 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1335 len = sprintf(buf, "%d\n",
1336 ha->ip_config.ipv4_port);
1337 else
1338 len = sprintf(buf, "%d\n",
1339 ha->ip_config.ipv6_port);
1340 break;
1341 case ISCSI_NET_PARAM_IPADDR_STATE:
1342 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1343 pval = iscsi_get_ipaddress_state_name(
1344 ha->ip_config.ipv4_addr_state);
1345 } else {
1346 if (iface->iface_num == 0)
1347 pval = iscsi_get_ipaddress_state_name(
1348 ha->ip_config.ipv6_addr0_state);
1349 else if (iface->iface_num == 1)
1350 pval = iscsi_get_ipaddress_state_name(
1351 ha->ip_config.ipv6_addr1_state);
1352 }
1353
1354 len = sprintf(buf, "%s\n", pval);
1355 break;
1356 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_STATE:
1357 pval = iscsi_get_ipaddress_state_name(
1358 ha->ip_config.ipv6_link_local_state);
1359 len = sprintf(buf, "%s\n", pval);
1360 break;
1361 case ISCSI_NET_PARAM_IPV6_ROUTER_STATE:
1362 pval = iscsi_get_router_state_name(
1363 ha->ip_config.ipv6_default_router_state);
1364 len = sprintf(buf, "%s\n", pval);
1365 break;
1366 case ISCSI_NET_PARAM_DELAYED_ACK_EN:
1367 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1368 OP_STATE(~ha->ip_config.tcp_options,
1369 TCPOPT_DELAYED_ACK_DISABLE, pval);
1370 } else {
1371 OP_STATE(~ha->ip_config.ipv6_tcp_options,
1372 IPV6_TCPOPT_DELAYED_ACK_DISABLE, pval);
1373 }
1374 len = sprintf(buf, "%s\n", pval);
1375 break;
1376 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE:
1377 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1378 OP_STATE(~ha->ip_config.tcp_options,
1379 TCPOPT_NAGLE_ALGO_DISABLE, pval);
1380 } else {
1381 OP_STATE(~ha->ip_config.ipv6_tcp_options,
1382 IPV6_TCPOPT_NAGLE_ALGO_DISABLE, pval);
1383 }
1384 len = sprintf(buf, "%s\n", pval);
1385 break;
1386 case ISCSI_NET_PARAM_TCP_WSF_DISABLE:
1387 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1388 OP_STATE(~ha->ip_config.tcp_options,
1389 TCPOPT_WINDOW_SCALE_DISABLE, pval);
1390 } else {
1391 OP_STATE(~ha->ip_config.ipv6_tcp_options,
1392 IPV6_TCPOPT_WINDOW_SCALE_DISABLE,
1393 pval);
1394 }
1395 len = sprintf(buf, "%s\n", pval);
1396 break;
1397 case ISCSI_NET_PARAM_TCP_WSF:
1398 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1399 len = sprintf(buf, "%d\n",
1400 ha->ip_config.tcp_wsf);
1401 else
1402 len = sprintf(buf, "%d\n",
1403 ha->ip_config.ipv6_tcp_wsf);
1404 break;
1405 case ISCSI_NET_PARAM_TCP_TIMER_SCALE:
1406 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1407 ival = (ha->ip_config.tcp_options &
1408 TCPOPT_TIMER_SCALE) >> 1;
1409 else
1410 ival = (ha->ip_config.ipv6_tcp_options &
1411 IPV6_TCPOPT_TIMER_SCALE) >> 1;
1412
1413 len = sprintf(buf, "%d\n", ival);
1414 break;
1415 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN:
1416 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1417 OP_STATE(ha->ip_config.tcp_options,
1418 TCPOPT_TIMESTAMP_ENABLE, pval);
1419 } else {
1420 OP_STATE(ha->ip_config.ipv6_tcp_options,
1421 IPV6_TCPOPT_TIMESTAMP_EN, pval);
1422 }
1423 len = sprintf(buf, "%s\n", pval);
1424 break;
1425 case ISCSI_NET_PARAM_CACHE_ID:
1426 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
1427 len = sprintf(buf, "%d\n",
1428 ha->ip_config.ipv4_cache_id);
1429 else
1430 len = sprintf(buf, "%d\n",
1431 ha->ip_config.ipv6_cache_id);
1432 break;
1433 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN:
1434 OP_STATE(ha->ip_config.tcp_options,
1435 TCPOPT_DNS_SERVER_IP_EN, pval);
1436
1437 len = sprintf(buf, "%s\n", pval);
1438 break;
1439 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN:
1440 OP_STATE(ha->ip_config.tcp_options,
1441 TCPOPT_SLP_DA_INFO_EN, pval);
1442
1443 len = sprintf(buf, "%s\n", pval);
1444 break;
1445 case ISCSI_NET_PARAM_IPV4_TOS_EN:
1446 OP_STATE(ha->ip_config.ipv4_options,
1447 IPOPT_IPV4_TOS_EN, pval);
1448
1449 len = sprintf(buf, "%s\n", pval);
1450 break;
1451 case ISCSI_NET_PARAM_IPV4_TOS:
1452 len = sprintf(buf, "%d\n", ha->ip_config.ipv4_tos);
1453 break;
1454 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN:
1455 OP_STATE(ha->ip_config.ipv4_options,
1456 IPOPT_GRAT_ARP_EN, pval);
1457
1458 len = sprintf(buf, "%s\n", pval);
1459 break;
1460 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN:
1461 OP_STATE(ha->ip_config.ipv4_options, IPOPT_ALT_CID_EN,
1462 pval);
1463
1464 len = sprintf(buf, "%s\n", pval);
1465 break;
1466 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID:
1467 pval = (ha->ip_config.ipv4_alt_cid_len) ?
1468 (char *)ha->ip_config.ipv4_alt_cid : "";
1469
1470 len = sprintf(buf, "%s\n", pval);
1471 break;
1472 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN:
1473 OP_STATE(ha->ip_config.ipv4_options,
1474 IPOPT_REQ_VID_EN, pval);
1475
1476 len = sprintf(buf, "%s\n", pval);
1477 break;
1478 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN:
1479 OP_STATE(ha->ip_config.ipv4_options,
1480 IPOPT_USE_VID_EN, pval);
1481
1482 len = sprintf(buf, "%s\n", pval);
1483 break;
1484 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID:
1485 pval = (ha->ip_config.ipv4_vid_len) ?
1486 (char *)ha->ip_config.ipv4_vid : "";
1487
1488 len = sprintf(buf, "%s\n", pval);
1489 break;
1490 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN:
1491 OP_STATE(ha->ip_config.ipv4_options,
1492 IPOPT_LEARN_IQN_EN, pval);
1493
1494 len = sprintf(buf, "%s\n", pval);
1495 break;
1496 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE:
1497 OP_STATE(~ha->ip_config.ipv4_options,
1498 IPOPT_FRAGMENTATION_DISABLE, pval);
1499
1500 len = sprintf(buf, "%s\n", pval);
1501 break;
1502 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN:
1503 OP_STATE(ha->ip_config.ipv4_options,
1504 IPOPT_IN_FORWARD_EN, pval);
1505
1506 len = sprintf(buf, "%s\n", pval);
1507 break;
1508 case ISCSI_NET_PARAM_REDIRECT_EN:
1509 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
1510 OP_STATE(ha->ip_config.ipv4_options,
1511 IPOPT_ARP_REDIRECT_EN, pval);
1512 } else {
1513 OP_STATE(ha->ip_config.ipv6_options,
1514 IPV6_OPT_REDIRECT_EN, pval);
1515 }
1516 len = sprintf(buf, "%s\n", pval);
1517 break;
1518 case ISCSI_NET_PARAM_IPV4_TTL:
1519 len = sprintf(buf, "%d\n", ha->ip_config.ipv4_ttl);
1520 break;
1521 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN:
1522 OP_STATE(ha->ip_config.ipv6_options,
1523 IPV6_OPT_GRAT_NEIGHBOR_ADV_EN, pval);
1524
1525 len = sprintf(buf, "%s\n", pval);
1526 break;
1527 case ISCSI_NET_PARAM_IPV6_MLD_EN:
1528 OP_STATE(ha->ip_config.ipv6_addl_options,
1529 IPV6_ADDOPT_MLD_EN, pval);
1530
1531 len = sprintf(buf, "%s\n", pval);
1532 break;
1533 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL:
1534 len = sprintf(buf, "%u\n", ha->ip_config.ipv6_flow_lbl);
1535 break;
1536 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS:
6ac73e8c 1537 len = sprintf(buf, "%d\n",
f8e93412
HZ		 1538 ha->ip_config.ipv6_traffic_class);
1539 break;
1540 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT:
6ac73e8c 1541 len = sprintf(buf, "%d\n",
f8e93412
HZ		 1542 ha->ip_config.ipv6_hop_limit);
1543 break;
1544 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO:
6ac73e8c 1545 len = sprintf(buf, "%d\n",
f8e93412
HZ		 1546 ha->ip_config.ipv6_nd_reach_time);
1547 break;
1548 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME:
6ac73e8c 1549 len = sprintf(buf, "%d\n",
f8e93412
HZ		 1550 ha->ip_config.ipv6_nd_rexmit_timer);
1551 break;
1552 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO:
1553 len = sprintf(buf, "%d\n",
1554 ha->ip_config.ipv6_nd_stale_timeout);
1555 break;
1556 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT:
1557 len = sprintf(buf, "%d\n",
1558 ha->ip_config.ipv6_dup_addr_detect_count);
1559 break;
1560 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU:
1561 len = sprintf(buf, "%d\n",
1562 ha->ip_config.ipv6_gw_advrt_mtu);
1563 break;
1564 default:
1565 len = -ENOSYS;
1566 }
1567 } else if (param_type == ISCSI_IFACE_PARAM) {
1568 switch (param) {
1569 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO:
1570 len = sprintf(buf, "%d\n", ha->ip_config.def_timeout);
1571 break;
1572 case ISCSI_IFACE_PARAM_HDRDGST_EN:
1573 OP_STATE(ha->ip_config.iscsi_options,
1574 ISCSIOPTS_HEADER_DIGEST_EN, pval);
1575
1576 len = sprintf(buf, "%s\n", pval);
1577 break;
1578 case ISCSI_IFACE_PARAM_DATADGST_EN:
1579 OP_STATE(ha->ip_config.iscsi_options,
1580 ISCSIOPTS_DATA_DIGEST_EN, pval);
1581
1582 len = sprintf(buf, "%s\n", pval);
1583 break;
1584 case ISCSI_IFACE_PARAM_IMM_DATA_EN:
1585 OP_STATE(ha->ip_config.iscsi_options,
1586 ISCSIOPTS_IMMEDIATE_DATA_EN, pval);
1587
1588 len = sprintf(buf, "%s\n", pval);
1589 break;
1590 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN:
1591 OP_STATE(ha->ip_config.iscsi_options,
1592 ISCSIOPTS_INITIAL_R2T_EN, pval);
1593
1594 len = sprintf(buf, "%s\n", pval);
1595 break;
1596 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN:
1597 OP_STATE(ha->ip_config.iscsi_options,
1598 ISCSIOPTS_DATA_SEQ_INORDER_EN, pval);
1599
1600 len = sprintf(buf, "%s\n", pval);
1601 break;
1602 case ISCSI_IFACE_PARAM_PDU_INORDER_EN:
1603 OP_STATE(ha->ip_config.iscsi_options,
1604 ISCSIOPTS_DATA_PDU_INORDER_EN, pval);
1605
1606 len = sprintf(buf, "%s\n", pval);
1607 break;
1608 case ISCSI_IFACE_PARAM_ERL:
1609 len = sprintf(buf, "%d\n",
1610 (ha->ip_config.iscsi_options &
1611 ISCSIOPTS_ERL));
1612 break;
1613 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH:
1614 len = sprintf(buf, "%u\n",
1615 ha->ip_config.iscsi_max_pdu_size *
1616 BYTE_UNITS);
1617 break;
1618 case ISCSI_IFACE_PARAM_FIRST_BURST:
1619 len = sprintf(buf, "%u\n",
1620 ha->ip_config.iscsi_first_burst_len *
1621 BYTE_UNITS);
1622 break;
1623 case ISCSI_IFACE_PARAM_MAX_R2T:
1624 len = sprintf(buf, "%d\n",
1625 ha->ip_config.iscsi_max_outstnd_r2t);
1626 break;
1627 case ISCSI_IFACE_PARAM_MAX_BURST:
1628 len = sprintf(buf, "%u\n",
1629 ha->ip_config.iscsi_max_burst_len *
1630 BYTE_UNITS);
1631 break;
1632 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN:
1633 OP_STATE(ha->ip_config.iscsi_options,
1634 ISCSIOPTS_CHAP_AUTH_EN, pval);
1635
1636 len = sprintf(buf, "%s\n", pval);
1637 break;
1638 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN:
1639 OP_STATE(ha->ip_config.iscsi_options,
1640 ISCSIOPTS_BIDI_CHAP_EN, pval);
1641
1642 len = sprintf(buf, "%s\n", pval);
1643 break;
1644 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL:
1645 OP_STATE(ha->ip_config.iscsi_options,
1646 ISCSIOPTS_DISCOVERY_AUTH_EN, pval);
1647
1648 len = sprintf(buf, "%s\n", pval);
1649 break;
1650 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN:
1651 OP_STATE(ha->ip_config.iscsi_options,
1652 ISCSIOPTS_DISCOVERY_LOGOUT_EN, pval);
1653
1654 len = sprintf(buf, "%s\n", pval);
1655 break;
1656 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN:
1657 OP_STATE(ha->ip_config.iscsi_options,
1658 ISCSIOPTS_STRICT_LOGIN_COMP_EN, pval);
1659
1660 len = sprintf(buf, "%s\n", pval);
1661 break;
1662 case ISCSI_IFACE_PARAM_INITIATOR_NAME:
1663 len = sprintf(buf, "%s\n", ha->ip_config.iscsi_name);
1664 break;
1665 default:
1666 len = -ENOSYS;
1667 }
ed1086e0
VC		 1668 }
1669
1670 return len;
1671}
1672
b3a271a9
MR		 1673static struct iscsi_endpoint *
1674qla4xxx_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr,
1675 int non_blocking)
5c656af7 1676{
b3a271a9
MR		 1677 int ret;
1678 struct iscsi_endpoint *ep;
1679 struct qla_endpoint *qla_ep;
1680 struct scsi_qla_host *ha;
1681 struct sockaddr_in *addr;
1682 struct sockaddr_in6 *addr6;
5c656af7 1683
b3a271a9
MR		 1684 if (!shost) {
1685 ret = -ENXIO;
c343c5e0 1686 pr_err("%s: shost is NULL\n", __func__);
b3a271a9
MR		 1687 return ERR_PTR(ret);
1688 }
5c656af7 1689
b3a271a9 1690 ha = iscsi_host_priv(shost);
b3a271a9
MR		 1691 ep = iscsi_create_endpoint(sizeof(struct qla_endpoint));
1692 if (!ep) {
1693 ret = -ENOMEM;
1694 return ERR_PTR(ret);
1695 }
1696
1697 qla_ep = ep->dd_data;
1698 memset(qla_ep, 0, sizeof(struct qla_endpoint));
1699 if (dst_addr->sa_family == AF_INET) {
1700 memcpy(&qla_ep->dst_addr, dst_addr, sizeof(struct sockaddr_in));
1701 addr = (struct sockaddr_in *)&qla_ep->dst_addr;
1702 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI4\n", __func__,
1703 (char *)&addr->sin_addr));
1704 } else if (dst_addr->sa_family == AF_INET6) {
1705 memcpy(&qla_ep->dst_addr, dst_addr,
1706 sizeof(struct sockaddr_in6));
1707 addr6 = (struct sockaddr_in6 *)&qla_ep->dst_addr;
1708 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI6\n", __func__,
1709 (char *)&addr6->sin6_addr));
c343c5e0
VC		 1710 } else {
1711 ql4_printk(KERN_WARNING, ha, "%s: Invalid endpoint\n",
1712 __func__);
b3a271a9
MR		 1713 }
1714
1715 qla_ep->host = shost;
1716
1717 return ep;
5c656af7
MC		 1718}
1719
b3a271a9 1720static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms)
afaf5a2d 1721{
b3a271a9
MR		 1722 struct qla_endpoint *qla_ep;
1723 struct scsi_qla_host *ha;
1724 int ret = 0;
afaf5a2d 1725
b3a271a9
MR		 1726 qla_ep = ep->dd_data;
1727 ha = to_qla_host(qla_ep->host);
c343c5e0 1728 DEBUG2(pr_info_ratelimited("%s: host: %ld\n", __func__, ha->host_no));
b3a271a9 1729
13483730 1730 if (adapter_up(ha) && !test_bit(AF_BUILD_DDB_LIST, &ha->flags))
b3a271a9
MR		 1731 ret = 1;
1732
1733 return ret;
1734}
1735
1736static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep)
1737{
c343c5e0
VC		 1738 struct qla_endpoint *qla_ep;
1739 struct scsi_qla_host *ha;
1740
1741 qla_ep = ep->dd_data;
1742 ha = to_qla_host(qla_ep->host);
1743 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__,
1744 ha->host_no));
b3a271a9
MR		 1745 iscsi_destroy_endpoint(ep);
1746}
1747
1748static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep,
1749 enum iscsi_param param,
1750 char *buf)
1751{
1752 struct qla_endpoint *qla_ep = ep->dd_data;
1753 struct sockaddr *dst_addr;
c343c5e0 1754 struct scsi_qla_host *ha;
b3a271a9 1755
73597bdd
AC		 1756 if (!qla_ep)
1757 return -ENOTCONN;
1758
c343c5e0
VC		 1759 ha = to_qla_host(qla_ep->host);
1760 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__,
1761 ha->host_no));
b3a271a9
MR		 1762
1763 switch (param) {
1764 case ISCSI_PARAM_CONN_PORT:
1765 case ISCSI_PARAM_CONN_ADDRESS:
b3a271a9
MR		 1766 dst_addr = (struct sockaddr *)&qla_ep->dst_addr;
1767 if (!dst_addr)
1768 return -ENOTCONN;
1769
1770 return iscsi_conn_get_addr_param((struct sockaddr_storage *)
1771 &qla_ep->dst_addr, param, buf);
1772 default:
1773 return -ENOSYS;
1774 }
1775}
1776
1777static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn,
1778 struct iscsi_stats *stats)
1779{
1780 struct iscsi_session *sess;
1781 struct iscsi_cls_session *cls_sess;
1782 struct ddb_entry *ddb_entry;
1783 struct scsi_qla_host *ha;
1784 struct ql_iscsi_stats *ql_iscsi_stats;
1785 int stats_size;
1786 int ret;
1787 dma_addr_t iscsi_stats_dma;
1788
b3a271a9
MR		 1789 cls_sess = iscsi_conn_to_session(cls_conn);
1790 sess = cls_sess->dd_data;
1791 ddb_entry = sess->dd_data;
1792 ha = ddb_entry->ha;
1793
c343c5e0
VC		 1794 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__,
1795 ha->host_no));
b3a271a9
MR		 1796 stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats));
1797 /* Allocate memory */
1798 ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size,
1799 &iscsi_stats_dma, GFP_KERNEL);
1800 if (!ql_iscsi_stats) {
1801 ql4_printk(KERN_ERR, ha,
1802 "Unable to allocate memory for iscsi stats\n");
1803 goto exit_get_stats;
568d303b 1804 }
b3a271a9
MR		 1805
1806 ret = qla4xxx_get_mgmt_data(ha, ddb_entry->fw_ddb_index, stats_size,
1807 iscsi_stats_dma);
1808 if (ret != QLA_SUCCESS) {
1809 ql4_printk(KERN_ERR, ha,
59e13d48 1810 "Unable to retrieve iscsi stats\n");
b3a271a9
MR		 1811 goto free_stats;
1812 }
1813
1814 /* octets */
1815 stats->txdata_octets = le64_to_cpu(ql_iscsi_stats->tx_data_octets);
1816 stats->rxdata_octets = le64_to_cpu(ql_iscsi_stats->rx_data_octets);
1817 /* xmit pdus */
1818 stats->noptx_pdus = le32_to_cpu(ql_iscsi_stats->tx_nopout_pdus);
1819 stats->scsicmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_cmd_pdus);
1820 stats->tmfcmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_tmf_cmd_pdus);
1821 stats->login_pdus = le32_to_cpu(ql_iscsi_stats->tx_login_cmd_pdus);
1822 stats->text_pdus = le32_to_cpu(ql_iscsi_stats->tx_text_cmd_pdus);
1823 stats->dataout_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_write_pdus);
1824 stats->logout_pdus = le32_to_cpu(ql_iscsi_stats->tx_logout_cmd_pdus);
1825 stats->snack_pdus = le32_to_cpu(ql_iscsi_stats->tx_snack_req_pdus);
1826 /* recv pdus */
1827 stats->noprx_pdus = le32_to_cpu(ql_iscsi_stats->rx_nopin_pdus);
1828 stats->scsirsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_resp_pdus);
1829 stats->tmfrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_tmf_resp_pdus);
1830 stats->textrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_text_resp_pdus);
1831 stats->datain_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_read_pdus);
1832 stats->logoutrsp_pdus =
1833 le32_to_cpu(ql_iscsi_stats->rx_logout_resp_pdus);
1834 stats->r2t_pdus = le32_to_cpu(ql_iscsi_stats->rx_r2t_pdus);
1835 stats->async_pdus = le32_to_cpu(ql_iscsi_stats->rx_async_pdus);
1836 stats->rjt_pdus = le32_to_cpu(ql_iscsi_stats->rx_reject_pdus);
1837
1838free_stats:
1839 dma_free_coherent(&ha->pdev->dev, stats_size, ql_iscsi_stats,
1840 iscsi_stats_dma);
1841exit_get_stats:
1842 return;
1843}
1844
1845static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc)
1846{
1847 struct iscsi_cls_session *session;
1848 struct iscsi_session *sess;
1849 unsigned long flags;
6600593c 1850 enum blk_eh_timer_return ret = BLK_EH_DONE;
b3a271a9
MR		 1851
1852 session = starget_to_session(scsi_target(sc->device));
1853 sess = session->dd_data;
1854
1855 spin_lock_irqsave(&session->lock, flags);
1856 if (session->state == ISCSI_SESSION_FAILED)
1857 ret = BLK_EH_RESET_TIMER;
1858 spin_unlock_irqrestore(&session->lock, flags);
1859
1860 return ret;
afaf5a2d
DS		 1861}
1862
3254dbe9
VC		 1863static void qla4xxx_set_port_speed(struct Scsi_Host *shost)
1864{
1865 struct scsi_qla_host *ha = to_qla_host(shost);
e16d166e 1866 struct iscsi_cls_host *ihost = shost->shost_data;
3254dbe9
VC		 1867 uint32_t speed = ISCSI_PORT_SPEED_UNKNOWN;
1868
1869 qla4xxx_get_firmware_state(ha);
1870
1871 switch (ha->addl_fw_state & 0x0F00) {
1872 case FW_ADDSTATE_LINK_SPEED_10MBPS:
1873 speed = ISCSI_PORT_SPEED_10MBPS;
1874 break;
1875 case FW_ADDSTATE_LINK_SPEED_100MBPS:
1876 speed = ISCSI_PORT_SPEED_100MBPS;
1877 break;
1878 case FW_ADDSTATE_LINK_SPEED_1GBPS:
1879 speed = ISCSI_PORT_SPEED_1GBPS;
1880 break;
1881 case FW_ADDSTATE_LINK_SPEED_10GBPS:
1882 speed = ISCSI_PORT_SPEED_10GBPS;
1883 break;
1884 }
1885 ihost->port_speed = speed;
1886}
1887
1888static void qla4xxx_set_port_state(struct Scsi_Host *shost)
1889{
1890 struct scsi_qla_host *ha = to_qla_host(shost);
e16d166e 1891 struct iscsi_cls_host *ihost = shost->shost_data;
3254dbe9
VC		 1892 uint32_t state = ISCSI_PORT_STATE_DOWN;
1893
1894 if (test_bit(AF_LINK_UP, &ha->flags))
1895 state = ISCSI_PORT_STATE_UP;
1896
1897 ihost->port_state = state;
1898}
1899
aa1e93a2
MC		 1900static int qla4xxx_host_get_param(struct Scsi_Host *shost,
1901 enum iscsi_host_param param, char *buf)
1902{
1903 struct scsi_qla_host *ha = to_qla_host(shost);
1904 int len;
1905
1906 switch (param) {
1907 case ISCSI_HOST_PARAM_HWADDRESS:
7ffc49a6 1908 len = sysfs_format_mac(buf, ha->my_mac, MAC_ADDR_LEN);
8ad5781a 1909 break;
22236961 1910 case ISCSI_HOST_PARAM_IPADDRESS:
2bab08fc 1911 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address);
22236961 1912 break;
8ad5781a 1913 case ISCSI_HOST_PARAM_INITIATOR_NAME:
22236961 1914 len = sprintf(buf, "%s\n", ha->name_string);
aa1e93a2 1915 break;
3254dbe9
VC		 1916 case ISCSI_HOST_PARAM_PORT_STATE:
1917 qla4xxx_set_port_state(shost);
1918 len = sprintf(buf, "%s\n", iscsi_get_port_state_name(shost));
1919 break;
1920 case ISCSI_HOST_PARAM_PORT_SPEED:
1921 qla4xxx_set_port_speed(shost);
1922 len = sprintf(buf, "%s\n", iscsi_get_port_speed_name(shost));
1923 break;
aa1e93a2
MC		 1924 default:
1925 return -ENOSYS;
1926 }
1927
1928 return len;
1929}
1930
ed1086e0
VC		 1931static void qla4xxx_create_ipv4_iface(struct scsi_qla_host *ha)
1932{
1933 if (ha->iface_ipv4)
1934 return;
1935
1936 /* IPv4 */
1937 ha->iface_ipv4 = iscsi_create_iface(ha->host,
1938 &qla4xxx_iscsi_transport,
1939 ISCSI_IFACE_TYPE_IPV4, 0, 0);
1940 if (!ha->iface_ipv4)
1941 ql4_printk(KERN_ERR, ha, "Could not create IPv4 iSCSI "
1942 "iface0.\n");
1943}
1944
1945static void qla4xxx_create_ipv6_iface(struct scsi_qla_host *ha)
1946{
1947 if (!ha->iface_ipv6_0)
1948 /* IPv6 iface-0 */
1949 ha->iface_ipv6_0 = iscsi_create_iface(ha->host,
1950 &qla4xxx_iscsi_transport,
1951 ISCSI_IFACE_TYPE_IPV6, 0,
1952 0);
1953 if (!ha->iface_ipv6_0)
1954 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI "
1955 "iface0.\n");
1956
1957 if (!ha->iface_ipv6_1)
1958 /* IPv6 iface-1 */
1959 ha->iface_ipv6_1 = iscsi_create_iface(ha->host,
1960 &qla4xxx_iscsi_transport,
1961 ISCSI_IFACE_TYPE_IPV6, 1,
1962 0);
1963 if (!ha->iface_ipv6_1)
1964 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI "
1965 "iface1.\n");
1966}
1967
1968static void qla4xxx_create_ifaces(struct scsi_qla_host *ha)
1969{
1970 if (ha->ip_config.ipv4_options & IPOPT_IPV4_PROTOCOL_ENABLE)
1971 qla4xxx_create_ipv4_iface(ha);
1972
1973 if (ha->ip_config.ipv6_options & IPV6_OPT_IPV6_PROTOCOL_ENABLE)
1974 qla4xxx_create_ipv6_iface(ha);
1975}
1976
1977static void qla4xxx_destroy_ipv4_iface(struct scsi_qla_host *ha)
1978{
1979 if (ha->iface_ipv4) {
1980 iscsi_destroy_iface(ha->iface_ipv4);
1981 ha->iface_ipv4 = NULL;
1982 }
1983}
1984
1985static void qla4xxx_destroy_ipv6_iface(struct scsi_qla_host *ha)
1986{
1987 if (ha->iface_ipv6_0) {
1988 iscsi_destroy_iface(ha->iface_ipv6_0);
1989 ha->iface_ipv6_0 = NULL;
1990 }
1991 if (ha->iface_ipv6_1) {
1992 iscsi_destroy_iface(ha->iface_ipv6_1);
1993 ha->iface_ipv6_1 = NULL;
1994 }
1995}
1996
1997static void qla4xxx_destroy_ifaces(struct scsi_qla_host *ha)
1998{
1999 qla4xxx_destroy_ipv4_iface(ha);
2000 qla4xxx_destroy_ipv6_iface(ha);
2001}
2002
d00efe3f
MC		 2003static void qla4xxx_set_ipv6(struct scsi_qla_host *ha,
2004 struct iscsi_iface_param_info *iface_param,
2005 struct addr_ctrl_blk *init_fw_cb)
2006{
2007 /*
2008 * iface_num 0 is valid for IPv6 Addr, linklocal, router, autocfg.
2009 * iface_num 1 is valid only for IPv6 Addr.
2010 */
2011 switch (iface_param->param) {
2012 case ISCSI_NET_PARAM_IPV6_ADDR:
2013 if (iface_param->iface_num & 0x1)
2014 /* IPv6 Addr 1 */
2015 memcpy(init_fw_cb->ipv6_addr1, iface_param->value,
2016 sizeof(init_fw_cb->ipv6_addr1));
2017 else
2018 /* IPv6 Addr 0 */
2019 memcpy(init_fw_cb->ipv6_addr0, iface_param->value,
2020 sizeof(init_fw_cb->ipv6_addr0));
2021 break;
2022 case ISCSI_NET_PARAM_IPV6_LINKLOCAL:
2023 if (iface_param->iface_num & 0x1)
2024 break;
2025 memcpy(init_fw_cb->ipv6_if_id, &iface_param->value[8],
2026 sizeof(init_fw_cb->ipv6_if_id));
2027 break;
2028 case ISCSI_NET_PARAM_IPV6_ROUTER:
2029 if (iface_param->iface_num & 0x1)
2030 break;
2031 memcpy(init_fw_cb->ipv6_dflt_rtr_addr, iface_param->value,
2032 sizeof(init_fw_cb->ipv6_dflt_rtr_addr));
2033 break;
2034 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG:
2035 /* Autocfg applies to even interface */
2036 if (iface_param->iface_num & 0x1)
2037 break;
2038
2039 if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_DISABLE)
2040 init_fw_cb->ipv6_addtl_opts &=
2041 cpu_to_le16(
2042 ~IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE);
2043 else if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_ND_ENABLE)
2044 init_fw_cb->ipv6_addtl_opts |=
2045 cpu_to_le16(
2046 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE);
2047 else
f8e93412
HZ		 2048 ql4_printk(KERN_ERR, ha,
2049 "Invalid autocfg setting for IPv6 addr\n");
d00efe3f
MC		 2050 break;
2051 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG:
2052 /* Autocfg applies to even interface */
2053 if (iface_param->iface_num & 0x1)
2054 break;
2055
2056 if (iface_param->value[0] ==
2057 ISCSI_IPV6_LINKLOCAL_AUTOCFG_ENABLE)
2058 init_fw_cb->ipv6_addtl_opts |= cpu_to_le16(
2059 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR);
2060 else if (iface_param->value[0] ==
2061 ISCSI_IPV6_LINKLOCAL_AUTOCFG_DISABLE)
2062 init_fw_cb->ipv6_addtl_opts &= cpu_to_le16(
2063 ~IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR);
2064 else
f8e93412
HZ		 2065 ql4_printk(KERN_ERR, ha,
2066 "Invalid autocfg setting for IPv6 linklocal addr\n");
d00efe3f
MC		 2067 break;
2068 case ISCSI_NET_PARAM_IPV6_ROUTER_AUTOCFG:
2069 /* Autocfg applies to even interface */
2070 if (iface_param->iface_num & 0x1)
2071 break;
2072
2073 if (iface_param->value[0] == ISCSI_IPV6_ROUTER_AUTOCFG_ENABLE)
2074 memset(init_fw_cb->ipv6_dflt_rtr_addr, 0,
2075 sizeof(init_fw_cb->ipv6_dflt_rtr_addr));
2076 break;
2077 case ISCSI_NET_PARAM_IFACE_ENABLE:
ed1086e0 2078 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) {
d00efe3f
MC		 2079 init_fw_cb->ipv6_opts |=
2080 cpu_to_le16(IPV6_OPT_IPV6_PROTOCOL_ENABLE);
ed1086e0
VC		 2081 qla4xxx_create_ipv6_iface(ha);
2082 } else {
d00efe3f
MC		 2083 init_fw_cb->ipv6_opts &=
2084 cpu_to_le16(~IPV6_OPT_IPV6_PROTOCOL_ENABLE &
2085 0xFFFF);
ed1086e0
VC		 2086 qla4xxx_destroy_ipv6_iface(ha);
2087 }
d00efe3f 2088 break;
2d63673b 2089 case ISCSI_NET_PARAM_VLAN_TAG:
d00efe3f
MC		 2090 if (iface_param->len != sizeof(init_fw_cb->ipv6_vlan_tag))
2091 break;
6ac73e8c
VC		 2092 init_fw_cb->ipv6_vlan_tag =
2093 cpu_to_be16(*(uint16_t *)iface_param->value);
2094 break;
2095 case ISCSI_NET_PARAM_VLAN_ENABLED:
2096 if (iface_param->value[0] == ISCSI_VLAN_ENABLE)
2097 init_fw_cb->ipv6_opts |=
2098 cpu_to_le16(IPV6_OPT_VLAN_TAGGING_ENABLE);
2099 else
2100 init_fw_cb->ipv6_opts &=
2101 cpu_to_le16(~IPV6_OPT_VLAN_TAGGING_ENABLE);
d00efe3f 2102 break;
943c157b
VC		 2103 case ISCSI_NET_PARAM_MTU:
2104 init_fw_cb->eth_mtu_size =
2105 cpu_to_le16(*(uint16_t *)iface_param->value);
2106 break;
2ada7fc5
VC		 2107 case ISCSI_NET_PARAM_PORT:
2108 /* Autocfg applies to even interface */
2109 if (iface_param->iface_num & 0x1)
2110 break;
2111
2112 init_fw_cb->ipv6_port =
2113 cpu_to_le16(*(uint16_t *)iface_param->value);
2114 break;
f8e93412
HZ		 2115 case ISCSI_NET_PARAM_DELAYED_ACK_EN:
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_DELAYED_ACK_DISABLE);
2121 else
2122 init_fw_cb->ipv6_tcp_opts &=
8f10872a
VC		 2123 cpu_to_le16(~IPV6_TCPOPT_DELAYED_ACK_DISABLE &
2124 0xFFFF);
f8e93412
HZ		 2125 break;
2126 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE:
2127 if (iface_param->iface_num & 0x1)
2128 break;
2129 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2130 init_fw_cb->ipv6_tcp_opts |=
2131 cpu_to_le16(IPV6_TCPOPT_NAGLE_ALGO_DISABLE);
2132 else
2133 init_fw_cb->ipv6_tcp_opts &=
2134 cpu_to_le16(~IPV6_TCPOPT_NAGLE_ALGO_DISABLE);
2135 break;
2136 case ISCSI_NET_PARAM_TCP_WSF_DISABLE:
2137 if (iface_param->iface_num & 0x1)
2138 break;
2139 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2140 init_fw_cb->ipv6_tcp_opts |=
2141 cpu_to_le16(IPV6_TCPOPT_WINDOW_SCALE_DISABLE);
2142 else
2143 init_fw_cb->ipv6_tcp_opts &=
2144 cpu_to_le16(~IPV6_TCPOPT_WINDOW_SCALE_DISABLE);
2145 break;
2146 case ISCSI_NET_PARAM_TCP_WSF:
2147 if (iface_param->iface_num & 0x1)
2148 break;
2149 init_fw_cb->ipv6_tcp_wsf = iface_param->value[0];
2150 break;
2151 case ISCSI_NET_PARAM_TCP_TIMER_SCALE:
2152 if (iface_param->iface_num & 0x1)
2153 break;
2154 init_fw_cb->ipv6_tcp_opts &=
2155 cpu_to_le16(~IPV6_TCPOPT_TIMER_SCALE);
2156 init_fw_cb->ipv6_tcp_opts |=
2157 cpu_to_le16((iface_param->value[0] << 1) &
2158 IPV6_TCPOPT_TIMER_SCALE);
2159 break;
2160 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN:
2161 if (iface_param->iface_num & 0x1)
2162 break;
2163 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2164 init_fw_cb->ipv6_tcp_opts |=
2165 cpu_to_le16(IPV6_TCPOPT_TIMESTAMP_EN);
2166 else
2167 init_fw_cb->ipv6_tcp_opts &=
2168 cpu_to_le16(~IPV6_TCPOPT_TIMESTAMP_EN);
2169 break;
2170 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN:
2171 if (iface_param->iface_num & 0x1)
2172 break;
2173 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2174 init_fw_cb->ipv6_opts |=
2175 cpu_to_le16(IPV6_OPT_GRAT_NEIGHBOR_ADV_EN);
2176 else
2177 init_fw_cb->ipv6_opts &=
2178 cpu_to_le16(~IPV6_OPT_GRAT_NEIGHBOR_ADV_EN);
2179 break;
2180 case ISCSI_NET_PARAM_REDIRECT_EN:
2181 if (iface_param->iface_num & 0x1)
2182 break;
2183 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2184 init_fw_cb->ipv6_opts |=
2185 cpu_to_le16(IPV6_OPT_REDIRECT_EN);
2186 else
2187 init_fw_cb->ipv6_opts &=
2188 cpu_to_le16(~IPV6_OPT_REDIRECT_EN);
2189 break;
2190 case ISCSI_NET_PARAM_IPV6_MLD_EN:
2191 if (iface_param->iface_num & 0x1)
2192 break;
2193 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2194 init_fw_cb->ipv6_addtl_opts |=
2195 cpu_to_le16(IPV6_ADDOPT_MLD_EN);
2196 else
2197 init_fw_cb->ipv6_addtl_opts &=
2198 cpu_to_le16(~IPV6_ADDOPT_MLD_EN);
2199 break;
2200 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL:
2201 if (iface_param->iface_num & 0x1)
2202 break;
2203 init_fw_cb->ipv6_flow_lbl =
2204 cpu_to_le16(*(uint16_t *)iface_param->value);
2205 break;
2206 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS:
2207 if (iface_param->iface_num & 0x1)
2208 break;
2209 init_fw_cb->ipv6_traffic_class = iface_param->value[0];
2210 break;
2211 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT:
2212 if (iface_param->iface_num & 0x1)
2213 break;
2214 init_fw_cb->ipv6_hop_limit = iface_param->value[0];
2215 break;
2216 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO:
2217 if (iface_param->iface_num & 0x1)
2218 break;
2219 init_fw_cb->ipv6_nd_reach_time =
2220 cpu_to_le32(*(uint32_t *)iface_param->value);
2221 break;
2222 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME:
2223 if (iface_param->iface_num & 0x1)
2224 break;
2225 init_fw_cb->ipv6_nd_rexmit_timer =
2226 cpu_to_le32(*(uint32_t *)iface_param->value);
2227 break;
2228 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO:
2229 if (iface_param->iface_num & 0x1)
2230 break;
2231 init_fw_cb->ipv6_nd_stale_timeout =
2232 cpu_to_le32(*(uint32_t *)iface_param->value);
2233 break;
2234 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT:
2235 if (iface_param->iface_num & 0x1)
2236 break;
2237 init_fw_cb->ipv6_dup_addr_detect_count = iface_param->value[0];
2238 break;
2239 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU:
2240 if (iface_param->iface_num & 0x1)
2241 break;
2242 init_fw_cb->ipv6_gw_advrt_mtu =
2243 cpu_to_le32(*(uint32_t *)iface_param->value);
2244 break;
d00efe3f
MC		 2245 default:
2246 ql4_printk(KERN_ERR, ha, "Unknown IPv6 param = %d\n",
2247 iface_param->param);
2248 break;
2249 }
2250}
2251
2252static void qla4xxx_set_ipv4(struct scsi_qla_host *ha,
2253 struct iscsi_iface_param_info *iface_param,
2254 struct addr_ctrl_blk *init_fw_cb)
2255{
2256 switch (iface_param->param) {
2257 case ISCSI_NET_PARAM_IPV4_ADDR:
2258 memcpy(init_fw_cb->ipv4_addr, iface_param->value,
2259 sizeof(init_fw_cb->ipv4_addr));
2260 break;
2261 case ISCSI_NET_PARAM_IPV4_SUBNET:
2262 memcpy(init_fw_cb->ipv4_subnet, iface_param->value,
2263 sizeof(init_fw_cb->ipv4_subnet));
2264 break;
2265 case ISCSI_NET_PARAM_IPV4_GW:
2266 memcpy(init_fw_cb->ipv4_gw_addr, iface_param->value,
2267 sizeof(init_fw_cb->ipv4_gw_addr));
2268 break;
2269 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
2270 if (iface_param->value[0] == ISCSI_BOOTPROTO_DHCP)
2271 init_fw_cb->ipv4_tcp_opts |=
2272 cpu_to_le16(TCPOPT_DHCP_ENABLE);
2273 else if (iface_param->value[0] == ISCSI_BOOTPROTO_STATIC)
2274 init_fw_cb->ipv4_tcp_opts &=
2275 cpu_to_le16(~TCPOPT_DHCP_ENABLE);
2276 else
2277 ql4_printk(KERN_ERR, ha, "Invalid IPv4 bootproto\n");
2278 break;
2279 case ISCSI_NET_PARAM_IFACE_ENABLE:
ed1086e0 2280 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) {
d00efe3f 2281 init_fw_cb->ipv4_ip_opts |=
2bab08fc 2282 cpu_to_le16(IPOPT_IPV4_PROTOCOL_ENABLE);
ed1086e0
VC		 2283 qla4xxx_create_ipv4_iface(ha);
2284 } else {
d00efe3f 2285 init_fw_cb->ipv4_ip_opts &=
2bab08fc 2286 cpu_to_le16(~IPOPT_IPV4_PROTOCOL_ENABLE &
d00efe3f 2287 0xFFFF);
ed1086e0
VC		 2288 qla4xxx_destroy_ipv4_iface(ha);
2289 }
d00efe3f 2290 break;
2d63673b 2291 case ISCSI_NET_PARAM_VLAN_TAG:
d00efe3f
MC		 2292 if (iface_param->len != sizeof(init_fw_cb->ipv4_vlan_tag))
2293 break;
6ac73e8c
VC		 2294 init_fw_cb->ipv4_vlan_tag =
2295 cpu_to_be16(*(uint16_t *)iface_param->value);
2296 break;
2297 case ISCSI_NET_PARAM_VLAN_ENABLED:
2298 if (iface_param->value[0] == ISCSI_VLAN_ENABLE)
2299 init_fw_cb->ipv4_ip_opts |=
2300 cpu_to_le16(IPOPT_VLAN_TAGGING_ENABLE);
2301 else
2302 init_fw_cb->ipv4_ip_opts &=
2303 cpu_to_le16(~IPOPT_VLAN_TAGGING_ENABLE);
d00efe3f 2304 break;
943c157b
VC		 2305 case ISCSI_NET_PARAM_MTU:
2306 init_fw_cb->eth_mtu_size =
2307 cpu_to_le16(*(uint16_t *)iface_param->value);
2308 break;
2ada7fc5
VC		 2309 case ISCSI_NET_PARAM_PORT:
2310 init_fw_cb->ipv4_port =
2311 cpu_to_le16(*(uint16_t *)iface_param->value);
2312 break;
f8e93412
HZ		 2313 case ISCSI_NET_PARAM_DELAYED_ACK_EN:
2314 if (iface_param->iface_num & 0x1)
2315 break;
2316 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2317 init_fw_cb->ipv4_tcp_opts |=
2318 cpu_to_le16(TCPOPT_DELAYED_ACK_DISABLE);
2319 else
2320 init_fw_cb->ipv4_tcp_opts &=
8f10872a
VC		 2321 cpu_to_le16(~TCPOPT_DELAYED_ACK_DISABLE &
2322 0xFFFF);
f8e93412
HZ		 2323 break;
2324 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE:
2325 if (iface_param->iface_num & 0x1)
2326 break;
2327 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2328 init_fw_cb->ipv4_tcp_opts |=
2329 cpu_to_le16(TCPOPT_NAGLE_ALGO_DISABLE);
2330 else
2331 init_fw_cb->ipv4_tcp_opts &=
2332 cpu_to_le16(~TCPOPT_NAGLE_ALGO_DISABLE);
2333 break;
2334 case ISCSI_NET_PARAM_TCP_WSF_DISABLE:
2335 if (iface_param->iface_num & 0x1)
2336 break;
2337 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2338 init_fw_cb->ipv4_tcp_opts |=
2339 cpu_to_le16(TCPOPT_WINDOW_SCALE_DISABLE);
2340 else
2341 init_fw_cb->ipv4_tcp_opts &=
2342 cpu_to_le16(~TCPOPT_WINDOW_SCALE_DISABLE);
2343 break;
2344 case ISCSI_NET_PARAM_TCP_WSF:
2345 if (iface_param->iface_num & 0x1)
2346 break;
2347 init_fw_cb->ipv4_tcp_wsf = iface_param->value[0];
2348 break;
2349 case ISCSI_NET_PARAM_TCP_TIMER_SCALE:
2350 if (iface_param->iface_num & 0x1)
2351 break;
2352 init_fw_cb->ipv4_tcp_opts &= cpu_to_le16(~TCPOPT_TIMER_SCALE);
2353 init_fw_cb->ipv4_tcp_opts |=
2354 cpu_to_le16((iface_param->value[0] << 1) &
2355 TCPOPT_TIMER_SCALE);
2356 break;
2357 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN:
2358 if (iface_param->iface_num & 0x1)
2359 break;
2360 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2361 init_fw_cb->ipv4_tcp_opts |=
2362 cpu_to_le16(TCPOPT_TIMESTAMP_ENABLE);
2363 else
2364 init_fw_cb->ipv4_tcp_opts &=
2365 cpu_to_le16(~TCPOPT_TIMESTAMP_ENABLE);
2366 break;
2367 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN:
2368 if (iface_param->iface_num & 0x1)
2369 break;
2370 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2371 init_fw_cb->ipv4_tcp_opts |=
2372 cpu_to_le16(TCPOPT_DNS_SERVER_IP_EN);
2373 else
2374 init_fw_cb->ipv4_tcp_opts &=
2375 cpu_to_le16(~TCPOPT_DNS_SERVER_IP_EN);
2376 break;
2377 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN:
2378 if (iface_param->iface_num & 0x1)
2379 break;
2380 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2381 init_fw_cb->ipv4_tcp_opts |=
2382 cpu_to_le16(TCPOPT_SLP_DA_INFO_EN);
2383 else
2384 init_fw_cb->ipv4_tcp_opts &=
2385 cpu_to_le16(~TCPOPT_SLP_DA_INFO_EN);
2386 break;
2387 case ISCSI_NET_PARAM_IPV4_TOS_EN:
2388 if (iface_param->iface_num & 0x1)
2389 break;
2390 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2391 init_fw_cb->ipv4_ip_opts |=
2392 cpu_to_le16(IPOPT_IPV4_TOS_EN);
2393 else
2394 init_fw_cb->ipv4_ip_opts &=
2395 cpu_to_le16(~IPOPT_IPV4_TOS_EN);
2396 break;
2397 case ISCSI_NET_PARAM_IPV4_TOS:
2398 if (iface_param->iface_num & 0x1)
2399 break;
2400 init_fw_cb->ipv4_tos = iface_param->value[0];
2401 break;
2402 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN:
2403 if (iface_param->iface_num & 0x1)
2404 break;
2405 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2406 init_fw_cb->ipv4_ip_opts |=
2407 cpu_to_le16(IPOPT_GRAT_ARP_EN);
2408 else
2409 init_fw_cb->ipv4_ip_opts &=
2410 cpu_to_le16(~IPOPT_GRAT_ARP_EN);
2411 break;
2412 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN:
2413 if (iface_param->iface_num & 0x1)
2414 break;
2415 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2416 init_fw_cb->ipv4_ip_opts |=
2417 cpu_to_le16(IPOPT_ALT_CID_EN);
2418 else
2419 init_fw_cb->ipv4_ip_opts &=
2420 cpu_to_le16(~IPOPT_ALT_CID_EN);
2421 break;
2422 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID:
2423 if (iface_param->iface_num & 0x1)
2424 break;
2425 memcpy(init_fw_cb->ipv4_dhcp_alt_cid, iface_param->value,
2426 (sizeof(init_fw_cb->ipv4_dhcp_alt_cid) - 1));
2427 init_fw_cb->ipv4_dhcp_alt_cid_len =
2428 strlen(init_fw_cb->ipv4_dhcp_alt_cid);
2429 break;
2430 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN:
2431 if (iface_param->iface_num & 0x1)
2432 break;
2433 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2434 init_fw_cb->ipv4_ip_opts |=
2435 cpu_to_le16(IPOPT_REQ_VID_EN);
2436 else
2437 init_fw_cb->ipv4_ip_opts &=
2438 cpu_to_le16(~IPOPT_REQ_VID_EN);
2439 break;
2440 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN:
2441 if (iface_param->iface_num & 0x1)
2442 break;
2443 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2444 init_fw_cb->ipv4_ip_opts |=
2445 cpu_to_le16(IPOPT_USE_VID_EN);
2446 else
2447 init_fw_cb->ipv4_ip_opts &=
2448 cpu_to_le16(~IPOPT_USE_VID_EN);
2449 break;
2450 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID:
2451 if (iface_param->iface_num & 0x1)
2452 break;
2453 memcpy(init_fw_cb->ipv4_dhcp_vid, iface_param->value,
2454 (sizeof(init_fw_cb->ipv4_dhcp_vid) - 1));
2455 init_fw_cb->ipv4_dhcp_vid_len =
2456 strlen(init_fw_cb->ipv4_dhcp_vid);
2457 break;
2458 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN:
2459 if (iface_param->iface_num & 0x1)
2460 break;
2461 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2462 init_fw_cb->ipv4_ip_opts |=
2463 cpu_to_le16(IPOPT_LEARN_IQN_EN);
2464 else
2465 init_fw_cb->ipv4_ip_opts &=
2466 cpu_to_le16(~IPOPT_LEARN_IQN_EN);
2467 break;
2468 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE:
2469 if (iface_param->iface_num & 0x1)
2470 break;
2471 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE)
2472 init_fw_cb->ipv4_ip_opts |=
2473 cpu_to_le16(IPOPT_FRAGMENTATION_DISABLE);
2474 else
2475 init_fw_cb->ipv4_ip_opts &=
2476 cpu_to_le16(~IPOPT_FRAGMENTATION_DISABLE);
2477 break;
2478 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN:
2479 if (iface_param->iface_num & 0x1)
2480 break;
2481 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2482 init_fw_cb->ipv4_ip_opts |=
2483 cpu_to_le16(IPOPT_IN_FORWARD_EN);
2484 else
2485 init_fw_cb->ipv4_ip_opts &=
2486 cpu_to_le16(~IPOPT_IN_FORWARD_EN);
2487 break;
2488 case ISCSI_NET_PARAM_REDIRECT_EN:
2489 if (iface_param->iface_num & 0x1)
2490 break;
2491 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2492 init_fw_cb->ipv4_ip_opts |=
2493 cpu_to_le16(IPOPT_ARP_REDIRECT_EN);
2494 else
2495 init_fw_cb->ipv4_ip_opts &=
2496 cpu_to_le16(~IPOPT_ARP_REDIRECT_EN);
2497 break;
2498 case ISCSI_NET_PARAM_IPV4_TTL:
2499 if (iface_param->iface_num & 0x1)
2500 break;
2501 init_fw_cb->ipv4_ttl = iface_param->value[0];
2502 break;
d00efe3f
MC		 2503 default:
2504 ql4_printk(KERN_ERR, ha, "Unknown IPv4 param = %d\n",
2505 iface_param->param);
2506 break;
2507 }
2508}
2509
f8e93412
HZ		 2510static void qla4xxx_set_iscsi_param(struct scsi_qla_host *ha,
2511 struct iscsi_iface_param_info *iface_param,
2512 struct addr_ctrl_blk *init_fw_cb)
2513{
2514 switch (iface_param->param) {
2515 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO:
2516 if (iface_param->iface_num & 0x1)
2517 break;
2518 init_fw_cb->def_timeout =
2519 cpu_to_le16(*(uint16_t *)iface_param->value);
2520 break;
2521 case ISCSI_IFACE_PARAM_HDRDGST_EN:
2522 if (iface_param->iface_num & 0x1)
2523 break;
2524 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2525 init_fw_cb->iscsi_opts |=
2526 cpu_to_le16(ISCSIOPTS_HEADER_DIGEST_EN);
2527 else
2528 init_fw_cb->iscsi_opts &=
2529 cpu_to_le16(~ISCSIOPTS_HEADER_DIGEST_EN);
2530 break;
2531 case ISCSI_IFACE_PARAM_DATADGST_EN:
2532 if (iface_param->iface_num & 0x1)
2533 break;
2534 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2535 init_fw_cb->iscsi_opts |=
2536 cpu_to_le16(ISCSIOPTS_DATA_DIGEST_EN);
2537 else
2538 init_fw_cb->iscsi_opts &=
2539 cpu_to_le16(~ISCSIOPTS_DATA_DIGEST_EN);
2540 break;
2541 case ISCSI_IFACE_PARAM_IMM_DATA_EN:
2542 if (iface_param->iface_num & 0x1)
2543 break;
2544 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2545 init_fw_cb->iscsi_opts |=
2546 cpu_to_le16(ISCSIOPTS_IMMEDIATE_DATA_EN);
2547 else
2548 init_fw_cb->iscsi_opts &=
2549 cpu_to_le16(~ISCSIOPTS_IMMEDIATE_DATA_EN);
2550 break;
2551 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN:
2552 if (iface_param->iface_num & 0x1)
2553 break;
2554 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2555 init_fw_cb->iscsi_opts |=
2556 cpu_to_le16(ISCSIOPTS_INITIAL_R2T_EN);
2557 else
2558 init_fw_cb->iscsi_opts &=
2559 cpu_to_le16(~ISCSIOPTS_INITIAL_R2T_EN);
2560 break;
2561 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN:
2562 if (iface_param->iface_num & 0x1)
2563 break;
2564 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2565 init_fw_cb->iscsi_opts |=
2566 cpu_to_le16(ISCSIOPTS_DATA_SEQ_INORDER_EN);
2567 else
2568 init_fw_cb->iscsi_opts &=
2569 cpu_to_le16(~ISCSIOPTS_DATA_SEQ_INORDER_EN);
2570 break;
2571 case ISCSI_IFACE_PARAM_PDU_INORDER_EN:
2572 if (iface_param->iface_num & 0x1)
2573 break;
2574 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2575 init_fw_cb->iscsi_opts |=
2576 cpu_to_le16(ISCSIOPTS_DATA_PDU_INORDER_EN);
2577 else
2578 init_fw_cb->iscsi_opts &=
2579 cpu_to_le16(~ISCSIOPTS_DATA_PDU_INORDER_EN);
2580 break;
2581 case ISCSI_IFACE_PARAM_ERL:
2582 if (iface_param->iface_num & 0x1)
2583 break;
2584 init_fw_cb->iscsi_opts &= cpu_to_le16(~ISCSIOPTS_ERL);
2585 init_fw_cb->iscsi_opts |= cpu_to_le16(iface_param->value[0] &
2586 ISCSIOPTS_ERL);
2587 break;
2588 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH:
2589 if (iface_param->iface_num & 0x1)
2590 break;
2591 init_fw_cb->iscsi_max_pdu_size =
2592 cpu_to_le32(*(uint32_t *)iface_param->value) /
2593 BYTE_UNITS;
2594 break;
2595 case ISCSI_IFACE_PARAM_FIRST_BURST:
2596 if (iface_param->iface_num & 0x1)
2597 break;
2598 init_fw_cb->iscsi_fburst_len =
2599 cpu_to_le32(*(uint32_t *)iface_param->value) /
2600 BYTE_UNITS;
2601 break;
2602 case ISCSI_IFACE_PARAM_MAX_R2T:
2603 if (iface_param->iface_num & 0x1)
2604 break;
2605 init_fw_cb->iscsi_max_outstnd_r2t =
2606 cpu_to_le16(*(uint16_t *)iface_param->value);
2607 break;
2608 case ISCSI_IFACE_PARAM_MAX_BURST:
2609 if (iface_param->iface_num & 0x1)
2610 break;
2611 init_fw_cb->iscsi_max_burst_len =
2612 cpu_to_le32(*(uint32_t *)iface_param->value) /
2613 BYTE_UNITS;
2614 break;
2615 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN:
2616 if (iface_param->iface_num & 0x1)
2617 break;
2618 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2619 init_fw_cb->iscsi_opts |=
2620 cpu_to_le16(ISCSIOPTS_CHAP_AUTH_EN);
2621 else
2622 init_fw_cb->iscsi_opts &=
2623 cpu_to_le16(~ISCSIOPTS_CHAP_AUTH_EN);
2624 break;
2625 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN:
2626 if (iface_param->iface_num & 0x1)
2627 break;
2628 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2629 init_fw_cb->iscsi_opts |=
2630 cpu_to_le16(ISCSIOPTS_BIDI_CHAP_EN);
2631 else
2632 init_fw_cb->iscsi_opts &=
2633 cpu_to_le16(~ISCSIOPTS_BIDI_CHAP_EN);
2634 break;
2635 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL:
2636 if (iface_param->iface_num & 0x1)
2637 break;
2638 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2639 init_fw_cb->iscsi_opts |=
2640 cpu_to_le16(ISCSIOPTS_DISCOVERY_AUTH_EN);
2641 else
2642 init_fw_cb->iscsi_opts &=
2643 cpu_to_le16(~ISCSIOPTS_DISCOVERY_AUTH_EN);
2644 break;
2645 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN:
2646 if (iface_param->iface_num & 0x1)
2647 break;
2648 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2649 init_fw_cb->iscsi_opts |=
2650 cpu_to_le16(ISCSIOPTS_DISCOVERY_LOGOUT_EN);
2651 else
2652 init_fw_cb->iscsi_opts &=
2653 cpu_to_le16(~ISCSIOPTS_DISCOVERY_LOGOUT_EN);
2654 break;
2655 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN:
2656 if (iface_param->iface_num & 0x1)
2657 break;
2658 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE)
2659 init_fw_cb->iscsi_opts |=
2660 cpu_to_le16(ISCSIOPTS_STRICT_LOGIN_COMP_EN);
2661 else
2662 init_fw_cb->iscsi_opts &=
2663 cpu_to_le16(~ISCSIOPTS_STRICT_LOGIN_COMP_EN);
2664 break;
2665 default:
2666 ql4_printk(KERN_ERR, ha, "Unknown iscsi param = %d\n",
2667 iface_param->param);
2668 break;
2669 }
2670}
2671
d00efe3f
MC		 2672static void
2673qla4xxx_initcb_to_acb(struct addr_ctrl_blk *init_fw_cb)
2674{
2675 struct addr_ctrl_blk_def *acb;
2676 acb = (struct addr_ctrl_blk_def *)init_fw_cb;
2677 memset(acb->reserved1, 0, sizeof(acb->reserved1));
2678 memset(acb->reserved2, 0, sizeof(acb->reserved2));
2679 memset(acb->reserved3, 0, sizeof(acb->reserved3));
2680 memset(acb->reserved4, 0, sizeof(acb->reserved4));
2681 memset(acb->reserved5, 0, sizeof(acb->reserved5));
2682 memset(acb->reserved6, 0, sizeof(acb->reserved6));
2683 memset(acb->reserved7, 0, sizeof(acb->reserved7));
2684 memset(acb->reserved8, 0, sizeof(acb->reserved8));
2685 memset(acb->reserved9, 0, sizeof(acb->reserved9));
2686 memset(acb->reserved10, 0, sizeof(acb->reserved10));
2687 memset(acb->reserved11, 0, sizeof(acb->reserved11));
2688 memset(acb->reserved12, 0, sizeof(acb->reserved12));
2689 memset(acb->reserved13, 0, sizeof(acb->reserved13));
2690 memset(acb->reserved14, 0, sizeof(acb->reserved14));
2691 memset(acb->reserved15, 0, sizeof(acb->reserved15));
2692}
2693
2694static int
00c31889 2695qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data, uint32_t len)
d00efe3f
MC		 2696{
2697 struct scsi_qla_host *ha = to_qla_host(shost);
2698 int rval = 0;
2699 struct iscsi_iface_param_info *iface_param = NULL;
2700 struct addr_ctrl_blk *init_fw_cb = NULL;
2701 dma_addr_t init_fw_cb_dma;
2702 uint32_t mbox_cmd[MBOX_REG_COUNT];
2703 uint32_t mbox_sts[MBOX_REG_COUNT];
00c31889
MC		 2704 uint32_t rem = len;
2705 struct nlattr *attr;
d00efe3f 2706
750afb08
LC		 2707 init_fw_cb = dma_alloc_coherent(&ha->pdev->dev,
2708 sizeof(struct addr_ctrl_blk),
2709 &init_fw_cb_dma, GFP_KERNEL);
d00efe3f
MC		 2710 if (!init_fw_cb) {
2711 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc init_cb\n",
2712 __func__);
2713 return -ENOMEM;
2714 }
2715
d00efe3f
MC		 2716 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
2717 memset(&mbox_sts, 0, sizeof(mbox_sts));
2718
2719 if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma)) {
2720 ql4_printk(KERN_ERR, ha, "%s: get ifcb failed\n", __func__);
2721 rval = -EIO;
2722 goto exit_init_fw_cb;
2723 }
2724
00c31889
MC		 2725 nla_for_each_attr(attr, data, len, rem) {
2726 iface_param = nla_data(attr);
d00efe3f 2727
f8e93412
HZ		 2728 if (iface_param->param_type == ISCSI_NET_PARAM) {
2729 switch (iface_param->iface_type) {
2730 case ISCSI_IFACE_TYPE_IPV4:
2731 switch (iface_param->iface_num) {
2732 case 0:
2733 qla4xxx_set_ipv4(ha, iface_param,
2734 init_fw_cb);
2735 break;
2736 default:
d00efe3f 2737 /* Cannot have more than one IPv4 interface */
f8e93412
HZ		 2738 ql4_printk(KERN_ERR, ha,
2739 "Invalid IPv4 iface number = %d\n",
2740 iface_param->iface_num);
2741 break;
2742 }
d00efe3f 2743 break;
f8e93412
HZ		 2744 case ISCSI_IFACE_TYPE_IPV6:
2745 switch (iface_param->iface_num) {
2746 case 0:
2747 case 1:
2748 qla4xxx_set_ipv6(ha, iface_param,
2749 init_fw_cb);
2750 break;
2751 default:
2752 /* Cannot have more than two IPv6 interface */
2753 ql4_printk(KERN_ERR, ha,
2754 "Invalid IPv6 iface number = %d\n",
2755 iface_param->iface_num);
2756 break;
2757 }
d00efe3f
MC		 2758 break;
2759 default:
f8e93412
HZ		 2760 ql4_printk(KERN_ERR, ha,
2761 "Invalid iface type\n");
d00efe3f
MC		 2762 break;
2763 }
f8e93412
HZ		 2764 } else if (iface_param->param_type == ISCSI_IFACE_PARAM) {
2765 qla4xxx_set_iscsi_param(ha, iface_param,
2766 init_fw_cb);
2767 } else {
2768 continue;
d00efe3f 2769 }
d00efe3f
MC		 2770 }
2771
2772 init_fw_cb->cookie = cpu_to_le32(0x11BEAD5A);
2773
2774 rval = qla4xxx_set_flash(ha, init_fw_cb_dma, FLASH_SEGMENT_IFCB,
2775 sizeof(struct addr_ctrl_blk),
2776 FLASH_OPT_RMW_COMMIT);
2777 if (rval != QLA_SUCCESS) {
2778 ql4_printk(KERN_ERR, ha, "%s: set flash mbx failed\n",
2779 __func__);
2780 rval = -EIO;
2781 goto exit_init_fw_cb;
2782 }
2783
ce505f9d
VC		 2784 rval = qla4xxx_disable_acb(ha);
2785 if (rval != QLA_SUCCESS) {
2786 ql4_printk(KERN_ERR, ha, "%s: disable acb mbx failed\n",
2787 __func__);
2788 rval = -EIO;
2789 goto exit_init_fw_cb;
2790 }
2791
2792 wait_for_completion_timeout(&ha->disable_acb_comp,
2793 DISABLE_ACB_TOV * HZ);
d00efe3f
MC		 2794
2795 qla4xxx_initcb_to_acb(init_fw_cb);
2796
2797 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma);
2798 if (rval != QLA_SUCCESS) {
2799 ql4_printk(KERN_ERR, ha, "%s: set acb mbx failed\n",
2800 __func__);
2801 rval = -EIO;
2802 goto exit_init_fw_cb;
2803 }
2804
2805 memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk));
2806 qla4xxx_update_local_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb,
2807 init_fw_cb_dma);
2808
2809exit_init_fw_cb:
2810 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk),
2811 init_fw_cb, init_fw_cb_dma);
2812
2813 return rval;
2814}
2815
fca9f04d
MC		 2816static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess,
2817 enum iscsi_param param, char *buf)
2818{
2819 struct iscsi_session *sess = cls_sess->dd_data;
2820 struct ddb_entry *ddb_entry = sess->dd_data;
2821 struct scsi_qla_host *ha = ddb_entry->ha;
97c2730c
AC		 2822 struct iscsi_cls_conn *cls_conn = ddb_entry->conn;
2823 struct ql4_chap_table chap_tbl;
fca9f04d
MC		 2824 int rval, len;
2825 uint16_t idx;
2826
97c2730c 2827 memset(&chap_tbl, 0, sizeof(chap_tbl));
fca9f04d
MC		 2828 switch (param) {
2829 case ISCSI_PARAM_CHAP_IN_IDX:
2830 rval = qla4xxx_get_chap_index(ha, sess->username_in,
2831 sess->password_in, BIDI_CHAP,
2832 &idx);
2833 if (rval)
c7a5e0d0
MR		 2834 len = sprintf(buf, "\n");
2835 else
2836 len = sprintf(buf, "%hu\n", idx);
fca9f04d
MC		 2837 break;
2838 case ISCSI_PARAM_CHAP_OUT_IDX:
97c2730c
AC		 2839 if (ddb_entry->ddb_type == FLASH_DDB) {
2840 if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) {
2841 idx = ddb_entry->chap_tbl_idx;
2842 rval = QLA_SUCCESS;
2843 } else {
2844 rval = QLA_ERROR;
2845 }
2846 } else {
2847 rval = qla4xxx_get_chap_index(ha, sess->username,
2848 sess->password,
2849 LOCAL_CHAP, &idx);
2850 }
fca9f04d 2851 if (rval)
c7a5e0d0
MR		 2852 len = sprintf(buf, "\n");
2853 else
2854 len = sprintf(buf, "%hu\n", idx);
fca9f04d 2855 break;
97c2730c
AC		 2856 case ISCSI_PARAM_USERNAME:
2857 case ISCSI_PARAM_PASSWORD:
2858 /* First, populate session username and password for FLASH DDB,
2859 * if not already done. This happens when session login fails
2860 * for a FLASH DDB.
2861 */
2862 if (ddb_entry->ddb_type == FLASH_DDB &&
2863 ddb_entry->chap_tbl_idx != INVALID_ENTRY &&
2864 !sess->username && !sess->password) {
2865 idx = ddb_entry->chap_tbl_idx;
2866 rval = qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name,
2867 chap_tbl.secret,
2868 idx);
2869 if (!rval) {
2870 iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME,
2871 (char *)chap_tbl.name,
2872 strlen((char *)chap_tbl.name));
2873 iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD,
2874 (char *)chap_tbl.secret,
2875 chap_tbl.secret_len);
2876 }
2877 }
fc9ac87e 2878 /* fall through */
fca9f04d
MC		 2879 default:
2880 return iscsi_session_get_param(cls_sess, param, buf);
2881 }
2882
2883 return len;
2884}
2885
b3a271a9 2886static int qla4xxx_conn_get_param(struct iscsi_cls_conn *cls_conn,
afaf5a2d
DS		 2887 enum iscsi_param param, char *buf)
2888{
b3a271a9
MR		 2889 struct iscsi_conn *conn;
2890 struct qla_conn *qla_conn;
2891 struct sockaddr *dst_addr;
afaf5a2d 2892
b3a271a9
MR		 2893 conn = cls_conn->dd_data;
2894 qla_conn = conn->dd_data;
d46bdeb1 2895 dst_addr = (struct sockaddr *)&qla_conn->qla_ep->dst_addr;
afaf5a2d
DS		 2896
2897 switch (param) {
2898 case ISCSI_PARAM_CONN_PORT:
afaf5a2d 2899 case ISCSI_PARAM_CONN_ADDRESS:
b3a271a9
MR		 2900 return iscsi_conn_get_addr_param((struct sockaddr_storage *)
2901 dst_addr, param, buf);
afaf5a2d 2902 default:
b3a271a9 2903 return iscsi_conn_get_param(cls_conn, param, buf);
afaf5a2d 2904 }
afaf5a2d
DS		 2905}
2906
13483730
MC		 2907int qla4xxx_get_ddb_index(struct scsi_qla_host *ha, uint16_t *ddb_index)
2908{
2909 uint32_t mbx_sts = 0;
2910 uint16_t tmp_ddb_index;
2911 int ret;
2912
2913get_ddb_index:
2914 tmp_ddb_index = find_first_zero_bit(ha->ddb_idx_map, MAX_DDB_ENTRIES);
2915
2916 if (tmp_ddb_index >= MAX_DDB_ENTRIES) {
2917 DEBUG2(ql4_printk(KERN_INFO, ha,
2918 "Free DDB index not available\n"));
2919 ret = QLA_ERROR;
2920 goto exit_get_ddb_index;
2921 }
2922
2923 if (test_and_set_bit(tmp_ddb_index, ha->ddb_idx_map))
2924 goto get_ddb_index;
2925
2926 DEBUG2(ql4_printk(KERN_INFO, ha,
2927 "Found a free DDB index at %d\n", tmp_ddb_index));
2928 ret = qla4xxx_req_ddb_entry(ha, tmp_ddb_index, &mbx_sts);
2929 if (ret == QLA_ERROR) {
2930 if (mbx_sts == MBOX_STS_COMMAND_ERROR) {
2931 ql4_printk(KERN_INFO, ha,
2932 "DDB index = %d not available trying next\n",
2933 tmp_ddb_index);
2934 goto get_ddb_index;
2935 }
2936 DEBUG2(ql4_printk(KERN_INFO, ha,
2937 "Free FW DDB not available\n"));
2938 }
2939
2940 *ddb_index = tmp_ddb_index;
2941
2942exit_get_ddb_index:
2943 return ret;
2944}
2945
2946static int qla4xxx_match_ipaddress(struct scsi_qla_host *ha,
2947 struct ddb_entry *ddb_entry,
2948 char *existing_ipaddr,
2949 char *user_ipaddr)
2950{
2951 uint8_t dst_ipaddr[IPv6_ADDR_LEN];
2952 char formatted_ipaddr[DDB_IPADDR_LEN];
2953 int status = QLA_SUCCESS, ret = 0;
2954
2955 if (ddb_entry->fw_ddb_entry.options & DDB_OPT_IPV6_DEVICE) {
2956 ret = in6_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr,
2957 '\0', NULL);
2958 if (ret == 0) {
2959 status = QLA_ERROR;
2960 goto out_match;
2961 }
2962 ret = sprintf(formatted_ipaddr, "%pI6", dst_ipaddr);
2963 } else {
2964 ret = in4_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr,
2965 '\0', NULL);
2966 if (ret == 0) {
2967 status = QLA_ERROR;
2968 goto out_match;
2969 }
2970 ret = sprintf(formatted_ipaddr, "%pI4", dst_ipaddr);
2971 }
2972
2973 if (strcmp(existing_ipaddr, formatted_ipaddr))
2974 status = QLA_ERROR;
2975
2976out_match:
2977 return status;
2978}
2979
2980static int qla4xxx_match_fwdb_session(struct scsi_qla_host *ha,
2981 struct iscsi_cls_conn *cls_conn)
2982{
2983 int idx = 0, max_ddbs, rval;
2984 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
2985 struct iscsi_session *sess, *existing_sess;
2986 struct iscsi_conn *conn, *existing_conn;
2987 struct ddb_entry *ddb_entry;
2988
2989 sess = cls_sess->dd_data;
2990 conn = cls_conn->dd_data;
2991
2992 if (sess->targetname == NULL ||
2993 conn->persistent_address == NULL ||
2994 conn->persistent_port == 0)
2995 return QLA_ERROR;
2996
2997 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
2998 MAX_DEV_DB_ENTRIES;
2999
3000 for (idx = 0; idx < max_ddbs; idx++) {
3001 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
3002 if (ddb_entry == NULL)
3003 continue;
3004
3005 if (ddb_entry->ddb_type != FLASH_DDB)
3006 continue;
3007
3008 existing_sess = ddb_entry->sess->dd_data;
3009 existing_conn = ddb_entry->conn->dd_data;
3010
3011 if (existing_sess->targetname == NULL ||
3012 existing_conn->persistent_address == NULL ||
3013 existing_conn->persistent_port == 0)
3014 continue;
3015
3016 DEBUG2(ql4_printk(KERN_INFO, ha,
3017 "IQN = %s User IQN = %s\n",
3018 existing_sess->targetname,
3019 sess->targetname));
3020
3021 DEBUG2(ql4_printk(KERN_INFO, ha,
3022 "IP = %s User IP = %s\n",
3023 existing_conn->persistent_address,
3024 conn->persistent_address));
3025
3026 DEBUG2(ql4_printk(KERN_INFO, ha,
3027 "Port = %d User Port = %d\n",
3028 existing_conn->persistent_port,
3029 conn->persistent_port));
3030
3031 if (strcmp(existing_sess->targetname, sess->targetname))
3032 continue;
3033 rval = qla4xxx_match_ipaddress(ha, ddb_entry,
3034 existing_conn->persistent_address,
3035 conn->persistent_address);
3036 if (rval == QLA_ERROR)
3037 continue;
3038 if (existing_conn->persistent_port != conn->persistent_port)
3039 continue;
3040 break;
3041 }
3042
3043 if (idx == max_ddbs)
3044 return QLA_ERROR;
3045
3046 DEBUG2(ql4_printk(KERN_INFO, ha,
3047 "Match found in fwdb sessions\n"));
3048 return QLA_SUCCESS;
3049}
3050
b3a271a9
MR		 3051static struct iscsi_cls_session *
3052qla4xxx_session_create(struct iscsi_endpoint *ep,
3053 uint16_t cmds_max, uint16_t qdepth,
3054 uint32_t initial_cmdsn)
3055{
3056 struct iscsi_cls_session *cls_sess;
3057 struct scsi_qla_host *ha;
3058 struct qla_endpoint *qla_ep;
3059 struct ddb_entry *ddb_entry;
13483730 3060 uint16_t ddb_index;
b3a271a9
MR		 3061 struct iscsi_session *sess;
3062 struct sockaddr *dst_addr;
3063 int ret;
3064
b3a271a9
MR		 3065 if (!ep) {
3066 printk(KERN_ERR "qla4xxx: missing ep.\n");
3067 return NULL;
3068 }
3069
3070 qla_ep = ep->dd_data;
3071 dst_addr = (struct sockaddr *)&qla_ep->dst_addr;
3072 ha = to_qla_host(qla_ep->host);
c343c5e0
VC		 3073 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__,
3074 ha->host_no));
736cf369 3075
13483730
MC		 3076 ret = qla4xxx_get_ddb_index(ha, &ddb_index);
3077 if (ret == QLA_ERROR)
b3a271a9 3078 return NULL;
b3a271a9
MR		 3079
3080 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, qla_ep->host,
3081 cmds_max, sizeof(struct ddb_entry),
3082 sizeof(struct ql4_task_data),
3083 initial_cmdsn, ddb_index);
3084 if (!cls_sess)
3085 return NULL;
3086
3087 sess = cls_sess->dd_data;
3088 ddb_entry = sess->dd_data;
3089 ddb_entry->fw_ddb_index = ddb_index;
3090 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE;
3091 ddb_entry->ha = ha;
3092 ddb_entry->sess = cls_sess;
13483730
MC		 3093 ddb_entry->unblock_sess = qla4xxx_unblock_ddb;
3094 ddb_entry->ddb_change = qla4xxx_ddb_change;
de2efea6 3095 clear_bit(DDB_CONN_CLOSE_FAILURE, &ddb_entry->flags);
b3a271a9
MR		 3096 cls_sess->recovery_tmo = ql4xsess_recovery_tmo;
3097 ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry;
3098 ha->tot_ddbs++;
3099
3100 return cls_sess;
3101}
3102
3103static void qla4xxx_session_destroy(struct iscsi_cls_session *cls_sess)
3104{
3105 struct iscsi_session *sess;
3106 struct ddb_entry *ddb_entry;
3107 struct scsi_qla_host *ha;
90599b62
MR		 3108 unsigned long flags, wtime;
3109 struct dev_db_entry *fw_ddb_entry = NULL;
3110 dma_addr_t fw_ddb_entry_dma;
3111 uint32_t ddb_state;
3112 int ret;
b3a271a9 3113
b3a271a9
MR		 3114 sess = cls_sess->dd_data;
3115 ddb_entry = sess->dd_data;
3116 ha = ddb_entry->ha;
c343c5e0
VC		 3117 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__,
3118 ha->host_no));
b3a271a9 3119
90599b62
MR		 3120 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3121 &fw_ddb_entry_dma, GFP_KERNEL);
3122 if (!fw_ddb_entry) {
3123 ql4_printk(KERN_ERR, ha,
3124 "%s: Unable to allocate dma buffer\n", __func__);
3125 goto destroy_session;
3126 }
3127
3128 wtime = jiffies + (HZ * LOGOUT_TOV);
3129 do {
3130 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
3131 fw_ddb_entry, fw_ddb_entry_dma,
3132 NULL, NULL, &ddb_state, NULL,
3133 NULL, NULL);
3134 if (ret == QLA_ERROR)
3135 goto destroy_session;
3136
3137 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) ||
3138 (ddb_state == DDB_DS_SESSION_FAILED))
3139 goto destroy_session;
3140
3141 schedule_timeout_uninterruptible(HZ);
3142 } while ((time_after(wtime, jiffies)));
3143
3144destroy_session:
736cf369 3145 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
de2efea6
NJ		 3146 if (test_and_clear_bit(DDB_CONN_CLOSE_FAILURE, &ddb_entry->flags))
3147 clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map);
b3a271a9
MR		 3148 spin_lock_irqsave(&ha->hardware_lock, flags);
3149 qla4xxx_free_ddb(ha, ddb_entry);
3150 spin_unlock_irqrestore(&ha->hardware_lock, flags);
90599b62 3151
b3a271a9 3152 iscsi_session_teardown(cls_sess);
90599b62
MR		 3153
3154 if (fw_ddb_entry)
3155 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3156 fw_ddb_entry, fw_ddb_entry_dma);
b3a271a9
MR		 3157}
3158
b3a271a9
MR		 3159static struct iscsi_cls_conn *
3160qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx)
3161{
3162 struct iscsi_cls_conn *cls_conn;
3163 struct iscsi_session *sess;
3164 struct ddb_entry *ddb_entry;
c343c5e0 3165 struct scsi_qla_host *ha;
b3a271a9 3166
b3a271a9
MR		 3167 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn),
3168 conn_idx);
c343c5e0
VC		 3169 if (!cls_conn) {
3170 pr_info("%s: Can not create connection for conn_idx = %u\n",
3171 __func__, conn_idx);
ff1d0319 3172 return NULL;
c343c5e0 3173 }
ff1d0319 3174
b3a271a9
MR		 3175 sess = cls_sess->dd_data;
3176 ddb_entry = sess->dd_data;
3177 ddb_entry->conn = cls_conn;
3178
c343c5e0
VC		 3179 ha = ddb_entry->ha;
3180 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: conn_idx = %u\n", __func__,
3181 conn_idx));
b3a271a9
MR		 3182 return cls_conn;
3183}
3184
3185static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session,
3186 struct iscsi_cls_conn *cls_conn,
3187 uint64_t transport_fd, int is_leading)
3188{
3189 struct iscsi_conn *conn;
3190 struct qla_conn *qla_conn;
3191 struct iscsi_endpoint *ep;
c343c5e0
VC		 3192 struct ddb_entry *ddb_entry;
3193 struct scsi_qla_host *ha;
3194 struct iscsi_session *sess;
3195
3196 sess = cls_session->dd_data;
3197 ddb_entry = sess->dd_data;
3198 ha = ddb_entry->ha;
b3a271a9 3199
c343c5e0
VC		 3200 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: sid = %d, cid = %d\n", __func__,
3201 cls_session->sid, cls_conn->cid));
b3a271a9
MR		 3202
3203 if (iscsi_conn_bind(cls_session, cls_conn, is_leading))
3204 return -EINVAL;
3205 ep = iscsi_lookup_endpoint(transport_fd);
fba1bdd2
KL		 3206 if (!ep)
3207 return -EINVAL;
b3a271a9
MR		 3208 conn = cls_conn->dd_data;
3209 qla_conn = conn->dd_data;
3210 qla_conn->qla_ep = ep->dd_data;
3211 return 0;
3212}
3213
3214static int qla4xxx_conn_start(struct iscsi_cls_conn *cls_conn)
3215{
3216 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
3217 struct iscsi_session *sess;
3218 struct ddb_entry *ddb_entry;
3219 struct scsi_qla_host *ha;
13483730 3220 struct dev_db_entry *fw_ddb_entry = NULL;
b3a271a9 3221 dma_addr_t fw_ddb_entry_dma;
b3a271a9
MR		 3222 uint32_t mbx_sts = 0;
3223 int ret = 0;
3224 int status = QLA_SUCCESS;
3225
b3a271a9
MR		 3226 sess = cls_sess->dd_data;
3227 ddb_entry = sess->dd_data;
3228 ha = ddb_entry->ha;
c343c5e0
VC		 3229 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: sid = %d, cid = %d\n", __func__,
3230 cls_sess->sid, cls_conn->cid));
b3a271a9 3231
13483730
MC		 3232 /* Check if we have matching FW DDB, if yes then do not
3233 * login to this target. This could cause target to logout previous
3234 * connection
3235 */
3236 ret = qla4xxx_match_fwdb_session(ha, cls_conn);
3237 if (ret == QLA_SUCCESS) {
3238 ql4_printk(KERN_INFO, ha,
3239 "Session already exist in FW.\n");
3240 ret = -EEXIST;
3241 goto exit_conn_start;
3242 }
3243
b3a271a9
MR		 3244 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3245 &fw_ddb_entry_dma, GFP_KERNEL);
3246 if (!fw_ddb_entry) {
3247 ql4_printk(KERN_ERR, ha,
3248 "%s: Unable to allocate dma buffer\n", __func__);
13483730
MC		 3249 ret = -ENOMEM;
3250 goto exit_conn_start;
b3a271a9
MR		 3251 }
3252
3253 ret = qla4xxx_set_param_ddbentry(ha, ddb_entry, cls_conn, &mbx_sts);
3254 if (ret) {
3255 /* If iscsid is stopped and started then no need to do
3256 * set param again since ddb state will be already
3257 * active and FW does not allow set ddb to an
3258 * active session.
3259 */
3260 if (mbx_sts)
3261 if (ddb_entry->fw_ddb_device_state ==
f922da79 3262 DDB_DS_SESSION_ACTIVE) {
13483730 3263 ddb_entry->unblock_sess(ddb_entry->sess);
b3a271a9 3264 goto exit_set_param;
f922da79 3265 }
b3a271a9
MR		 3266
3267 ql4_printk(KERN_ERR, ha, "%s: Failed set param for index[%d]\n",
3268 __func__, ddb_entry->fw_ddb_index);
3269 goto exit_conn_start;
3270 }
3271
3272 status = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index);
3273 if (status == QLA_ERROR) {
0e7e8501
MR		 3274 ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__,
3275 sess->targetname);
b3a271a9
MR		 3276 ret = -EINVAL;
3277 goto exit_conn_start;
3278 }
3279
98270ab4
MR		 3280 if (ddb_entry->fw_ddb_device_state == DDB_DS_NO_CONNECTION_ACTIVE)
3281 ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS;
3282
3283 DEBUG2(printk(KERN_INFO "%s: DDB state [%d]\n", __func__,
3284 ddb_entry->fw_ddb_device_state));
b3a271a9
MR		 3285
3286exit_set_param:
b3a271a9
MR		 3287 ret = 0;
3288
3289exit_conn_start:
13483730
MC		 3290 if (fw_ddb_entry)
3291 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3292 fw_ddb_entry, fw_ddb_entry_dma);
b3a271a9
MR		 3293 return ret;
3294}
3295
3296static void qla4xxx_conn_destroy(struct iscsi_cls_conn *cls_conn)
3297{
3298 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
3299 struct iscsi_session *sess;
3300 struct scsi_qla_host *ha;
3301 struct ddb_entry *ddb_entry;
3302 int options;
3303
b3a271a9
MR		 3304 sess = cls_sess->dd_data;
3305 ddb_entry = sess->dd_data;
3306 ha = ddb_entry->ha;
c343c5e0
VC		 3307 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: cid = %d\n", __func__,
3308 cls_conn->cid));
b3a271a9
MR		 3309
3310 options = LOGOUT_OPTION_CLOSE_SESSION;
3311 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR)
3312 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__);
b3a271a9
MR		 3313}
3314
3315static void qla4xxx_task_work(struct work_struct *wdata)
3316{
3317 struct ql4_task_data *task_data;
3318 struct scsi_qla_host *ha;
3319 struct passthru_status *sts;
3320 struct iscsi_task *task;
3321 struct iscsi_hdr *hdr;
3322 uint8_t *data;
3323 uint32_t data_len;
3324 struct iscsi_conn *conn;
3325 int hdr_len;
3326 itt_t itt;
3327
3328 task_data = container_of(wdata, struct ql4_task_data, task_work);
3329 ha = task_data->ha;
3330 task = task_data->task;
3331 sts = &task_data->sts;
3332 hdr_len = sizeof(struct iscsi_hdr);
3333
3334 DEBUG3(printk(KERN_INFO "Status returned\n"));
3335 DEBUG3(qla4xxx_dump_buffer(sts, 64));
3336 DEBUG3(printk(KERN_INFO "Response buffer"));
3337 DEBUG3(qla4xxx_dump_buffer(task_data->resp_buffer, 64));
3338
3339 conn = task->conn;
3340
3341 switch (sts->completionStatus) {
3342 case PASSTHRU_STATUS_COMPLETE:
3343 hdr = (struct iscsi_hdr *)task_data->resp_buffer;
3344 /* Assign back the itt in hdr, until we use the PREASSIGN_TAG */
3345 itt = sts->handle;
3346 hdr->itt = itt;
3347 data = task_data->resp_buffer + hdr_len;
3348 data_len = task_data->resp_len - hdr_len;
3349 iscsi_complete_pdu(conn, hdr, data, data_len);
3350 break;
3351 default:
3352 ql4_printk(KERN_ERR, ha, "Passthru failed status = 0x%x\n",
3353 sts->completionStatus);
3354 break;
3355 }
3356 return;
3357}
3358
3359static int qla4xxx_alloc_pdu(struct iscsi_task *task, uint8_t opcode)
3360{
3361 struct ql4_task_data *task_data;
3362 struct iscsi_session *sess;
3363 struct ddb_entry *ddb_entry;
3364 struct scsi_qla_host *ha;
3365 int hdr_len;
3366
3367 sess = task->conn->session;
3368 ddb_entry = sess->dd_data;
3369 ha = ddb_entry->ha;
3370 task_data = task->dd_data;
3371 memset(task_data, 0, sizeof(struct ql4_task_data));
3372
3373 if (task->sc) {
3374 ql4_printk(KERN_INFO, ha,
3375 "%s: SCSI Commands not implemented\n", __func__);
3376 return -EINVAL;
3377 }
3378
3379 hdr_len = sizeof(struct iscsi_hdr);
3380 task_data->ha = ha;
3381 task_data->task = task;
3382
3383 if (task->data_count) {
3384 task_data->data_dma = dma_map_single(&ha->pdev->dev, task->data,
3385 task->data_count,
ec44a676 3386 DMA_TO_DEVICE);
b3a271a9
MR		 3387 }
3388
3389 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n",
3390 __func__, task->conn->max_recv_dlength, hdr_len));
3391
69ca216e 3392 task_data->resp_len = task->conn->max_recv_dlength + hdr_len;
b3a271a9
MR		 3393 task_data->resp_buffer = dma_alloc_coherent(&ha->pdev->dev,
3394 task_data->resp_len,
3395 &task_data->resp_dma,
3396 GFP_ATOMIC);
3397 if (!task_data->resp_buffer)
3398 goto exit_alloc_pdu;
3399
69ca216e 3400 task_data->req_len = task->data_count + hdr_len;
b3a271a9 3401 task_data->req_buffer = dma_alloc_coherent(&ha->pdev->dev,
69ca216e 3402 task_data->req_len,
b3a271a9
MR		 3403 &task_data->req_dma,
3404 GFP_ATOMIC);
3405 if (!task_data->req_buffer)
3406 goto exit_alloc_pdu;
3407
3408 task->hdr = task_data->req_buffer;
3409
3410 INIT_WORK(&task_data->task_work, qla4xxx_task_work);
3411
3412 return 0;
3413
3414exit_alloc_pdu:
3415 if (task_data->resp_buffer)
3416 dma_free_coherent(&ha->pdev->dev, task_data->resp_len,
3417 task_data->resp_buffer, task_data->resp_dma);
3418
3419 if (task_data->req_buffer)
69ca216e 3420 dma_free_coherent(&ha->pdev->dev, task_data->req_len,
b3a271a9
MR		 3421 task_data->req_buffer, task_data->req_dma);
3422 return -ENOMEM;
3423}
3424
3425static void qla4xxx_task_cleanup(struct iscsi_task *task)
3426{
3427 struct ql4_task_data *task_data;
3428 struct iscsi_session *sess;
3429 struct ddb_entry *ddb_entry;
3430 struct scsi_qla_host *ha;
3431 int hdr_len;
3432
3433 hdr_len = sizeof(struct iscsi_hdr);
3434 sess = task->conn->session;
3435 ddb_entry = sess->dd_data;
3436 ha = ddb_entry->ha;
3437 task_data = task->dd_data;
3438
3439 if (task->data_count) {
3440 dma_unmap_single(&ha->pdev->dev, task_data->data_dma,
ec44a676 3441 task->data_count, DMA_TO_DEVICE);
b3a271a9
MR		 3442 }
3443
3444 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n",
3445 __func__, task->conn->max_recv_dlength, hdr_len));
3446
3447 dma_free_coherent(&ha->pdev->dev, task_data->resp_len,
3448 task_data->resp_buffer, task_data->resp_dma);
69ca216e 3449 dma_free_coherent(&ha->pdev->dev, task_data->req_len,
b3a271a9
MR		 3450 task_data->req_buffer, task_data->req_dma);
3451 return;
3452}
3453
3454static int qla4xxx_task_xmit(struct iscsi_task *task)
3455{
3456 struct scsi_cmnd *sc = task->sc;
3457 struct iscsi_session *sess = task->conn->session;
3458 struct ddb_entry *ddb_entry = sess->dd_data;
3459 struct scsi_qla_host *ha = ddb_entry->ha;
3460
3461 if (!sc)
3462 return qla4xxx_send_passthru0(task);
3463
3464 ql4_printk(KERN_INFO, ha, "%s: scsi cmd xmit not implemented\n",
3465 __func__);
3466 return -ENOSYS;
3467}
3468
1e9e2be3
AC		 3469static int qla4xxx_copy_from_fwddb_param(struct iscsi_bus_flash_session *sess,
3470 struct iscsi_bus_flash_conn *conn,
3471 struct dev_db_entry *fw_ddb_entry)
3472{
3473 unsigned long options = 0;
3474 int rc = 0;
3475
3476 options = le16_to_cpu(fw_ddb_entry->options);
3477 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options);
3478 if (test_bit(OPT_IPV6_DEVICE, &options)) {
c962c18b
AC		 3479 rc = iscsi_switch_str_param(&sess->portal_type,
3480 PORTAL_TYPE_IPV6);
1e9e2be3
AC		 3481 if (rc)
3482 goto exit_copy;
3483 } else {
c962c18b
AC		 3484 rc = iscsi_switch_str_param(&sess->portal_type,
3485 PORTAL_TYPE_IPV4);
1e9e2be3
AC		 3486 if (rc)
3487 goto exit_copy;
3488 }
3489
3490 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE,
3491 &options);
3492 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options);
3493 sess->entry_state = test_bit(OPT_ENTRY_STATE, &options);
3494
3495 options = le16_to_cpu(fw_ddb_entry->iscsi_options);
3496 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options);
3497 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options);
3498 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options);
3499 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options);
3500 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER,
3501 &options);
3502 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options);
3503 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options);
3504 conn->snack_req_en = test_bit(ISCSIOPT_SNACK_REQ_EN, &options);
3505 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN,
3506 &options);
3507 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options);
3508 sess->discovery_auth_optional =
3509 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options);
3510 if (test_bit(ISCSIOPT_ERL1, &options))
3511 sess->erl |= BIT_1;
3512 if (test_bit(ISCSIOPT_ERL0, &options))
3513 sess->erl |= BIT_0;
3514
3515 options = le16_to_cpu(fw_ddb_entry->tcp_options);
3516 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options);
3517 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options);
3518 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options);
3519 if (test_bit(TCPOPT_TIMER_SCALE3, &options))
3520 conn->tcp_timer_scale |= BIT_3;
3521 if (test_bit(TCPOPT_TIMER_SCALE2, &options))
3522 conn->tcp_timer_scale |= BIT_2;
3523 if (test_bit(TCPOPT_TIMER_SCALE1, &options))
3524 conn->tcp_timer_scale |= BIT_1;
3525
3526 conn->tcp_timer_scale >>= 1;
3527 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options);
3528
3529 options = le16_to_cpu(fw_ddb_entry->ip_options);
3530 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options);
3531
3532 conn->max_recv_dlength = BYTE_UNITS *
3533 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len);
3534 conn->max_xmit_dlength = BYTE_UNITS *
3535 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len);
3536 sess->first_burst = BYTE_UNITS *
3537 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len);
3538 sess->max_burst = BYTE_UNITS *
3539 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len);
3540 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t);
3541 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
3542 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain);
3543 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
3544 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss);
3545 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf;
3546 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf;
3547 conn->ipv6_flow_label = le16_to_cpu(fw_ddb_entry->ipv6_flow_lbl);
3548 conn->keepalive_timeout = le16_to_cpu(fw_ddb_entry->ka_timeout);
3549 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port);
3550 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn);
3551 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn);
3552 sess->discovery_parent_idx = le16_to_cpu(fw_ddb_entry->ddb_link);
3553 sess->discovery_parent_type = le16_to_cpu(fw_ddb_entry->ddb_link);
3554 sess->chap_out_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
3555 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid);
3556
3557 sess->default_taskmgmt_timeout =
3558 le16_to_cpu(fw_ddb_entry->def_timeout);
3559 conn->port = le16_to_cpu(fw_ddb_entry->port);
3560
3561 options = le16_to_cpu(fw_ddb_entry->options);
3562 conn->ipaddress = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL);
3563 if (!conn->ipaddress) {
3564 rc = -ENOMEM;
3565 goto exit_copy;
3566 }
3567
3568 conn->redirect_ipaddr = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL);
3569 if (!conn->redirect_ipaddr) {
3570 rc = -ENOMEM;
3571 goto exit_copy;
3572 }
3573
3574 memcpy(conn->ipaddress, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN);
3575 memcpy(conn->redirect_ipaddr, fw_ddb_entry->tgt_addr, IPv6_ADDR_LEN);
3576
3577 if (test_bit(OPT_IPV6_DEVICE, &options)) {
3578 conn->ipv6_traffic_class = fw_ddb_entry->ipv4_tos;
3579
3d30b439
BT		 3580 conn->link_local_ipv6_addr = kmemdup(
3581 fw_ddb_entry->link_local_ipv6_addr,
3582 IPv6_ADDR_LEN, GFP_KERNEL);
1e9e2be3
AC		 3583 if (!conn->link_local_ipv6_addr) {
3584 rc = -ENOMEM;
3585 goto exit_copy;
3586 }
1e9e2be3
AC		 3587 } else {
3588 conn->ipv4_tos = fw_ddb_entry->ipv4_tos;
3589 }
3590
3591 if (fw_ddb_entry->iscsi_name[0]) {
3592 rc = iscsi_switch_str_param(&sess->targetname,
3593 (char *)fw_ddb_entry->iscsi_name);
3594 if (rc)
3595 goto exit_copy;
3596 }
3597
3598 if (fw_ddb_entry->iscsi_alias[0]) {
3599 rc = iscsi_switch_str_param(&sess->targetalias,
3600 (char *)fw_ddb_entry->iscsi_alias);
3601 if (rc)
3602 goto exit_copy;
3603 }
3604
3605 COPY_ISID(sess->isid, fw_ddb_entry->isid);
3606
3607exit_copy:
3608 return rc;
3609}
3610
3611static int qla4xxx_copy_to_fwddb_param(struct iscsi_bus_flash_session *sess,
3612 struct iscsi_bus_flash_conn *conn,
3613 struct dev_db_entry *fw_ddb_entry)
3614{
3615 uint16_t options;
3616 int rc = 0;
3617
3618 options = le16_to_cpu(fw_ddb_entry->options);
3619 SET_BITVAL(conn->is_fw_assigned_ipv6, options, BIT_11);
c962c18b 3620 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4))
1e9e2be3
AC		 3621 options |= BIT_8;
3622 else
3623 options &= ~BIT_8;
3624
3625 SET_BITVAL(sess->auto_snd_tgt_disable, options, BIT_6);
3626 SET_BITVAL(sess->discovery_sess, options, BIT_4);
3627 SET_BITVAL(sess->entry_state, options, BIT_3);
3628 fw_ddb_entry->options = cpu_to_le16(options);
3629
3630 options = le16_to_cpu(fw_ddb_entry->iscsi_options);
3631 SET_BITVAL(conn->hdrdgst_en, options, BIT_13);
3632 SET_BITVAL(conn->datadgst_en, options, BIT_12);
3633 SET_BITVAL(sess->imm_data_en, options, BIT_11);
3634 SET_BITVAL(sess->initial_r2t_en, options, BIT_10);
3635 SET_BITVAL(sess->dataseq_inorder_en, options, BIT_9);
3636 SET_BITVAL(sess->pdu_inorder_en, options, BIT_8);
3637 SET_BITVAL(sess->chap_auth_en, options, BIT_7);
3638 SET_BITVAL(conn->snack_req_en, options, BIT_6);
3639 SET_BITVAL(sess->discovery_logout_en, options, BIT_5);
3640 SET_BITVAL(sess->bidi_chap_en, options, BIT_4);
3641 SET_BITVAL(sess->discovery_auth_optional, options, BIT_3);
3642 SET_BITVAL(sess->erl & BIT_1, options, BIT_1);
3643 SET_BITVAL(sess->erl & BIT_0, options, BIT_0);
3644 fw_ddb_entry->iscsi_options = cpu_to_le16(options);
3645
3646 options = le16_to_cpu(fw_ddb_entry->tcp_options);
3647 SET_BITVAL(conn->tcp_timestamp_stat, options, BIT_6);
3648 SET_BITVAL(conn->tcp_nagle_disable, options, BIT_5);
3649 SET_BITVAL(conn->tcp_wsf_disable, options, BIT_4);
3650 SET_BITVAL(conn->tcp_timer_scale & BIT_2, options, BIT_3);
3651 SET_BITVAL(conn->tcp_timer_scale & BIT_1, options, BIT_2);
3652 SET_BITVAL(conn->tcp_timer_scale & BIT_0, options, BIT_1);
3653 SET_BITVAL(conn->tcp_timestamp_en, options, BIT_0);
3654 fw_ddb_entry->tcp_options = cpu_to_le16(options);
3655
3656 options = le16_to_cpu(fw_ddb_entry->ip_options);
3657 SET_BITVAL(conn->fragment_disable, options, BIT_4);
3658 fw_ddb_entry->ip_options = cpu_to_le16(options);
3659
3660 fw_ddb_entry->iscsi_max_outsnd_r2t = cpu_to_le16(sess->max_r2t);
3661 fw_ddb_entry->iscsi_max_rcv_data_seg_len =
3662 cpu_to_le16(conn->max_recv_dlength / BYTE_UNITS);
3663 fw_ddb_entry->iscsi_max_snd_data_seg_len =
3664 cpu_to_le16(conn->max_xmit_dlength / BYTE_UNITS);
3665 fw_ddb_entry->iscsi_first_burst_len =
3666 cpu_to_le16(sess->first_burst / BYTE_UNITS);
3667 fw_ddb_entry->iscsi_max_burst_len = cpu_to_le16(sess->max_burst /
3668 BYTE_UNITS);
3669 fw_ddb_entry->iscsi_def_time2wait = cpu_to_le16(sess->time2wait);
3670 fw_ddb_entry->iscsi_def_time2retain = cpu_to_le16(sess->time2retain);
3671 fw_ddb_entry->tgt_portal_grp = cpu_to_le16(sess->tpgt);
3672 fw_ddb_entry->mss = cpu_to_le16(conn->max_segment_size);
fbcd4836
AC		 3673 fw_ddb_entry->tcp_xmt_wsf = (uint8_t) cpu_to_le32(conn->tcp_xmit_wsf);
3674 fw_ddb_entry->tcp_rcv_wsf = (uint8_t) cpu_to_le32(conn->tcp_recv_wsf);
1e9e2be3
AC		 3675 fw_ddb_entry->ipv6_flow_lbl = cpu_to_le16(conn->ipv6_flow_label);
3676 fw_ddb_entry->ka_timeout = cpu_to_le16(conn->keepalive_timeout);
3677 fw_ddb_entry->lcl_port = cpu_to_le16(conn->local_port);
fbcd4836
AC		 3678 fw_ddb_entry->stat_sn = cpu_to_le32(conn->statsn);
3679 fw_ddb_entry->exp_stat_sn = cpu_to_le32(conn->exp_statsn);
65560166 3680 fw_ddb_entry->ddb_link = cpu_to_le16(sess->discovery_parent_idx);
1e9e2be3
AC		 3681 fw_ddb_entry->chap_tbl_idx = cpu_to_le16(sess->chap_out_idx);
3682 fw_ddb_entry->tsid = cpu_to_le16(sess->tsid);
3683 fw_ddb_entry->port = cpu_to_le16(conn->port);
3684 fw_ddb_entry->def_timeout =
3685 cpu_to_le16(sess->default_taskmgmt_timeout);
3686
84595802
AC		 3687 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4))
3688 fw_ddb_entry->ipv4_tos = conn->ipv6_traffic_class;
3689 else
3690 fw_ddb_entry->ipv4_tos = conn->ipv4_tos;
3691
1e9e2be3
AC		 3692 if (conn->ipaddress)
3693 memcpy(fw_ddb_entry->ip_addr, conn->ipaddress,
3694 sizeof(fw_ddb_entry->ip_addr));
3695
3696 if (conn->redirect_ipaddr)
3697 memcpy(fw_ddb_entry->tgt_addr, conn->redirect_ipaddr,
3698 sizeof(fw_ddb_entry->tgt_addr));
3699
3700 if (conn->link_local_ipv6_addr)
3701 memcpy(fw_ddb_entry->link_local_ipv6_addr,
3702 conn->link_local_ipv6_addr,
3703 sizeof(fw_ddb_entry->link_local_ipv6_addr));
3704
3705 if (sess->targetname)
3706 memcpy(fw_ddb_entry->iscsi_name, sess->targetname,
3707 sizeof(fw_ddb_entry->iscsi_name));
3708
3709 if (sess->targetalias)
3710 memcpy(fw_ddb_entry->iscsi_alias, sess->targetalias,
3711 sizeof(fw_ddb_entry->iscsi_alias));
3712
3713 COPY_ISID(fw_ddb_entry->isid, sess->isid);
3714
3715 return rc;
3716}
3717
8cc91d42
AC		 3718static void qla4xxx_copy_to_sess_conn_params(struct iscsi_conn *conn,
3719 struct iscsi_session *sess,
3720 struct dev_db_entry *fw_ddb_entry)
3721{
3722 unsigned long options = 0;
3723 uint16_t ddb_link;
3724 uint16_t disc_parent;
fb734ee3 3725 char ip_addr[DDB_IPADDR_LEN];
8cc91d42
AC		 3726
3727 options = le16_to_cpu(fw_ddb_entry->options);
3728 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options);
3729 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE,
3730 &options);
3731 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options);
3732
3733 options = le16_to_cpu(fw_ddb_entry->iscsi_options);
3734 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options);
3735 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options);
3736 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options);
3737 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options);
3738 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER,
3739 &options);
3740 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options);
3741 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options);
3742 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN,
3743 &options);
3744 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options);
3745 sess->discovery_auth_optional =
3746 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options);
3747 if (test_bit(ISCSIOPT_ERL1, &options))
3748 sess->erl |= BIT_1;
3749 if (test_bit(ISCSIOPT_ERL0, &options))
3750 sess->erl |= BIT_0;
3751
3752 options = le16_to_cpu(fw_ddb_entry->tcp_options);
3753 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options);
3754 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options);
3755 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options);
3756 if (test_bit(TCPOPT_TIMER_SCALE3, &options))
3757 conn->tcp_timer_scale |= BIT_3;
3758 if (test_bit(TCPOPT_TIMER_SCALE2, &options))
3759 conn->tcp_timer_scale |= BIT_2;
3760 if (test_bit(TCPOPT_TIMER_SCALE1, &options))
3761 conn->tcp_timer_scale |= BIT_1;
3762
3763 conn->tcp_timer_scale >>= 1;
3764 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options);
3765
3766 options = le16_to_cpu(fw_ddb_entry->ip_options);
3767 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options);
3768
3769 conn->max_recv_dlength = BYTE_UNITS *
3770 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len);
3771 conn->max_xmit_dlength = BYTE_UNITS *
3772 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len);
3773 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t);
3774 sess->first_burst = BYTE_UNITS *
3775 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len);
3776 sess->max_burst = BYTE_UNITS *
3777 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len);
3778 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
3779 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain);
3780 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
3781 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss);
3782 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf;
3783 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf;
3784 conn->ipv4_tos = fw_ddb_entry->ipv4_tos;
3785 conn->keepalive_tmo = le16_to_cpu(fw_ddb_entry->ka_timeout);
3786 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port);
3787 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn);
3788 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn);
3789 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid);
3790 COPY_ISID(sess->isid, fw_ddb_entry->isid);
3791
3792 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
8cc91d42
AC		 3793 if (ddb_link == DDB_ISNS)
3794 disc_parent = ISCSI_DISC_PARENT_ISNS;
3795 else if (ddb_link == DDB_NO_LINK)
3796 disc_parent = ISCSI_DISC_PARENT_UNKNOWN;
3797 else if (ddb_link < MAX_DDB_ENTRIES)
3798 disc_parent = ISCSI_DISC_PARENT_SENDTGT;
3799 else
3800 disc_parent = ISCSI_DISC_PARENT_UNKNOWN;
3801
3802 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_DISCOVERY_PARENT_TYPE,
3803 iscsi_get_discovery_parent_name(disc_parent), 0);
3804
3805 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_TARGET_ALIAS,
3806 (char *)fw_ddb_entry->iscsi_alias, 0);
fb734ee3
AC		 3807
3808 options = le16_to_cpu(fw_ddb_entry->options);
3809 if (options & DDB_OPT_IPV6_DEVICE) {
3810 memset(ip_addr, 0, sizeof(ip_addr));
3811 sprintf(ip_addr, "%pI6", fw_ddb_entry->link_local_ipv6_addr);
3812 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_LOCAL_IPADDR,
3813 (char *)ip_addr, 0);
3814 }
8cc91d42
AC		 3815}
3816
13483730
MC		 3817static void qla4xxx_copy_fwddb_param(struct scsi_qla_host *ha,
3818 struct dev_db_entry *fw_ddb_entry,
3819 struct iscsi_cls_session *cls_sess,
3820 struct iscsi_cls_conn *cls_conn)
3821{
3822 int buflen = 0;
3823 struct iscsi_session *sess;
376738af 3824 struct ddb_entry *ddb_entry;
946ac571 3825 struct ql4_chap_table chap_tbl;
13483730
MC		 3826 struct iscsi_conn *conn;
3827 char ip_addr[DDB_IPADDR_LEN];
3828 uint16_t options = 0;
3829
3830 sess = cls_sess->dd_data;
376738af 3831 ddb_entry = sess->dd_data;
13483730 3832 conn = cls_conn->dd_data;
946ac571 3833 memset(&chap_tbl, 0, sizeof(chap_tbl));
13483730 3834
376738af
NJ		 3835 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
3836
8cc91d42 3837 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry);
13483730 3838
8cc91d42 3839 sess->def_taskmgmt_tmo = le16_to_cpu(fw_ddb_entry->def_timeout);
13483730
MC		 3840 conn->persistent_port = le16_to_cpu(fw_ddb_entry->port);
3841
8cc91d42 3842 memset(ip_addr, 0, sizeof(ip_addr));
13483730 3843 options = le16_to_cpu(fw_ddb_entry->options);
8cc91d42
AC		 3844 if (options & DDB_OPT_IPV6_DEVICE) {
3845 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv6", 4);
3846
3847 memset(ip_addr, 0, sizeof(ip_addr));
13483730 3848 sprintf(ip_addr, "%pI6", fw_ddb_entry->ip_addr);
8cc91d42
AC		 3849 } else {
3850 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv4", 4);
13483730 3851 sprintf(ip_addr, "%pI4", fw_ddb_entry->ip_addr);
8cc91d42 3852 }
13483730 3853
8cc91d42
AC		 3854 iscsi_set_param(cls_conn, ISCSI_PARAM_PERSISTENT_ADDRESS,
3855 (char *)ip_addr, buflen);
13483730
MC		 3856 iscsi_set_param(cls_conn, ISCSI_PARAM_TARGET_NAME,
3857 (char *)fw_ddb_entry->iscsi_name, buflen);
3858 iscsi_set_param(cls_conn, ISCSI_PARAM_INITIATOR_NAME,
3859 (char *)ha->name_string, buflen);
946ac571
AC		 3860
3861 if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) {
3862 if (!qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name,
3863 chap_tbl.secret,
3864 ddb_entry->chap_tbl_idx)) {
3865 iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME,
3866 (char *)chap_tbl.name,
3867 strlen((char *)chap_tbl.name));
3868 iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD,
3869 (char *)chap_tbl.secret,
3870 chap_tbl.secret_len);
3871 }
3872 }
13483730
MC		 3873}
3874
3875void qla4xxx_update_session_conn_fwddb_param(struct scsi_qla_host *ha,
3876 struct ddb_entry *ddb_entry)
3877{
3878 struct iscsi_cls_session *cls_sess;
3879 struct iscsi_cls_conn *cls_conn;
3880 uint32_t ddb_state;
3881 dma_addr_t fw_ddb_entry_dma;
3882 struct dev_db_entry *fw_ddb_entry;
3883
3884 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3885 &fw_ddb_entry_dma, GFP_KERNEL);
3886 if (!fw_ddb_entry) {
3887 ql4_printk(KERN_ERR, ha,
3888 "%s: Unable to allocate dma buffer\n", __func__);
3889 goto exit_session_conn_fwddb_param;
3890 }
3891
3892 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry,
3893 fw_ddb_entry_dma, NULL, NULL, &ddb_state,
3894 NULL, NULL, NULL) == QLA_ERROR) {
3895 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
3896 "get_ddb_entry for fw_ddb_index %d\n",
3897 ha->host_no, __func__,
3898 ddb_entry->fw_ddb_index));
3899 goto exit_session_conn_fwddb_param;
3900 }
3901
3902 cls_sess = ddb_entry->sess;
3903
3904 cls_conn = ddb_entry->conn;
3905
3906 /* Update params */
3907 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn);
3908
3909exit_session_conn_fwddb_param:
3910 if (fw_ddb_entry)
3911 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3912 fw_ddb_entry, fw_ddb_entry_dma);
3913}
3914
b3a271a9
MR		 3915void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha,
3916 struct ddb_entry *ddb_entry)
3917{
3918 struct iscsi_cls_session *cls_sess;
3919 struct iscsi_cls_conn *cls_conn;
3920 struct iscsi_session *sess;
3921 struct iscsi_conn *conn;
3922 uint32_t ddb_state;
3923 dma_addr_t fw_ddb_entry_dma;
3924 struct dev_db_entry *fw_ddb_entry;
3925
3926 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3927 &fw_ddb_entry_dma, GFP_KERNEL);
3928 if (!fw_ddb_entry) {
3929 ql4_printk(KERN_ERR, ha,
3930 "%s: Unable to allocate dma buffer\n", __func__);
13483730 3931 goto exit_session_conn_param;
b3a271a9
MR		 3932 }
3933
3934 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry,
3935 fw_ddb_entry_dma, NULL, NULL, &ddb_state,
3936 NULL, NULL, NULL) == QLA_ERROR) {
3937 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
3938 "get_ddb_entry for fw_ddb_index %d\n",
3939 ha->host_no, __func__,
3940 ddb_entry->fw_ddb_index));
13483730 3941 goto exit_session_conn_param;
b3a271a9
MR		 3942 }
3943
3944 cls_sess = ddb_entry->sess;
3945 sess = cls_sess->dd_data;
3946
3947 cls_conn = ddb_entry->conn;
3948 conn = cls_conn->dd_data;
3949
13483730
MC		 3950 /* Update timers after login */
3951 ddb_entry->default_relogin_timeout =
c28eaaca
NJ		 3952 (le16_to_cpu(fw_ddb_entry->def_timeout) > LOGIN_TOV) &&
3953 (le16_to_cpu(fw_ddb_entry->def_timeout) < LOGIN_TOV * 10) ?
3954 le16_to_cpu(fw_ddb_entry->def_timeout) : LOGIN_TOV;
13483730
MC		 3955 ddb_entry->default_time2wait =
3956 le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
3957
b3a271a9 3958 /* Update params */
376738af 3959 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
8cc91d42 3960 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry);
b3a271a9
MR		 3961
3962 memcpy(sess->initiatorname, ha->name_string,
3963 min(sizeof(ha->name_string), sizeof(sess->initiatorname)));
13483730
MC		 3964
3965exit_session_conn_param:
3966 if (fw_ddb_entry)
3967 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3968 fw_ddb_entry, fw_ddb_entry_dma);
b3a271a9
MR		 3969}
3970
afaf5a2d
DS		 3971/*
3972 * Timer routines
3973 */
d744644a 3974static void qla4xxx_timer(struct timer_list *t);
afaf5a2d 3975
d744644a 3976static void qla4xxx_start_timer(struct scsi_qla_host *ha,
afaf5a2d
DS		 3977 unsigned long interval)
3978{
3979 DEBUG(printk("scsi: %s: Starting timer thread for adapter %d\n",
3980 __func__, ha->host->host_no));
d744644a 3981 timer_setup(&ha->timer, qla4xxx_timer, 0);
afaf5a2d 3982 ha->timer.expires = jiffies + interval * HZ;
afaf5a2d
DS		 3983 add_timer(&ha->timer);
3984 ha->timer_active = 1;
3985}
3986
3987static void qla4xxx_stop_timer(struct scsi_qla_host *ha)
3988{
3989 del_timer_sync(&ha->timer);
3990 ha->timer_active = 0;
3991}
3992
3993/***
b3a271a9
MR		 3994 * qla4xxx_mark_device_missing - blocks the session
3995 * @cls_session: Pointer to the session to be blocked
afaf5a2d
DS		 3996 * @ddb_entry: Pointer to device database entry
3997 *
f4f5df23 3998 * This routine marks a device missing and close connection.
afaf5a2d 3999 **/
b3a271a9 4000void qla4xxx_mark_device_missing(struct iscsi_cls_session *cls_session)
afaf5a2d 4001{
b3a271a9 4002 iscsi_block_session(cls_session);
afaf5a2d
DS		 4003}
4004
f4f5df23
VC		 4005/**
4006 * qla4xxx_mark_all_devices_missing - mark all devices as missing.
4007 * @ha: Pointer to host adapter structure.
4008 *
4009 * This routine marks a device missing and resets the relogin retry count.
4010 **/
4011void qla4xxx_mark_all_devices_missing(struct scsi_qla_host *ha)
4012{
b3a271a9 4013 iscsi_host_for_each_session(ha->host, qla4xxx_mark_device_missing);
f4f5df23
VC		 4014}
4015
afaf5a2d
DS		 4016static struct srb* qla4xxx_get_new_srb(struct scsi_qla_host *ha,
4017 struct ddb_entry *ddb_entry,
8f0722ca 4018 struct scsi_cmnd *cmd)
afaf5a2d
DS		 4019{
4020 struct srb *srb;
4021
4022 srb = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
4023 if (!srb)
4024 return srb;
4025
09a0f719 4026 kref_init(&srb->srb_ref);
afaf5a2d
DS		 4027 srb->ha = ha;
4028 srb->ddb = ddb_entry;
4029 srb->cmd = cmd;
4030 srb->flags = 0;
5369887a 4031 CMD_SP(cmd) = (void *)srb;
afaf5a2d
DS		 4032
4033 return srb;
4034}
4035
4036static void qla4xxx_srb_free_dma(struct scsi_qla_host *ha, struct srb *srb)
4037{
4038 struct scsi_cmnd *cmd = srb->cmd;
4039
4040 if (srb->flags & SRB_DMA_VALID) {
5f7186c8 4041 scsi_dma_unmap(cmd);
afaf5a2d
DS		 4042 srb->flags &= ~SRB_DMA_VALID;
4043 }
5369887a 4044 CMD_SP(cmd) = NULL;
afaf5a2d
DS		 4045}
4046
09a0f719 4047void qla4xxx_srb_compl(struct kref *ref)
afaf5a2d 4048{
09a0f719 4049 struct srb *srb = container_of(ref, struct srb, srb_ref);
afaf5a2d 4050 struct scsi_cmnd *cmd = srb->cmd;
09a0f719 4051 struct scsi_qla_host *ha = srb->ha;
afaf5a2d
DS		 4052
4053 qla4xxx_srb_free_dma(ha, srb);
4054
4055 mempool_free(srb, ha->srb_mempool);
4056
4057 cmd->scsi_done(cmd);
4058}
4059
4060/**
4061 * qla4xxx_queuecommand - scsi layer issues scsi command to driver.
8f0722ca 4062 * @host: scsi host
afaf5a2d 4063 * @cmd: Pointer to Linux's SCSI command structure
afaf5a2d
DS		 4064 *
4065 * Remarks:
4066 * This routine is invoked by Linux to send a SCSI command to the driver.
4067 * The mid-level driver tries to ensure that queuecommand never gets
4068 * invoked concurrently with itself or the interrupt handler (although
4069 * the interrupt handler may call this routine as part of request-
4070 * completion handling). Unfortunely, it sometimes calls the scheduler
4071 * in interrupt context which is a big NO! NO!.
4072 **/
8f0722ca 4073static int qla4xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
afaf5a2d 4074{
8f0722ca 4075 struct scsi_qla_host *ha = to_qla_host(host);
afaf5a2d 4076 struct ddb_entry *ddb_entry = cmd->device->hostdata;
7fb1921b 4077 struct iscsi_cls_session *sess = ddb_entry->sess;
afaf5a2d
DS		 4078 struct srb *srb;
4079 int rval;
4080
2232be0d
LC		 4081 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
4082 if (test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags))
4083 cmd->result = DID_NO_CONNECT << 16;
4084 else
4085 cmd->result = DID_REQUEUE << 16;
4086 goto qc_fail_command;
4087 }
4088
7fb1921b
MC		 4089 if (!sess) {
4090 cmd->result = DID_IMM_RETRY << 16;
4091 goto qc_fail_command;
4092 }
4093
4094 rval = iscsi_session_chkready(sess);
4095 if (rval) {
4096 cmd->result = rval;
4097 goto qc_fail_command;
4098 }
4099
f4f5df23
VC		 4100 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
4101 test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) ||
4102 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
4103 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) ||
4104 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) ||
4105 !test_bit(AF_ONLINE, &ha->flags) ||
b3a271a9 4106 !test_bit(AF_LINK_UP, &ha->flags) ||
026fbd3a 4107 test_bit(AF_LOOPBACK, &ha->flags) ||
7ab284c9
NJ		 4108 test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags) ||
4109 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags) ||
f4f5df23 4110 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))
477ffb9d
DS		 4111 goto qc_host_busy;
4112
8f0722ca 4113 srb = qla4xxx_get_new_srb(ha, ddb_entry, cmd);
afaf5a2d 4114 if (!srb)
8f0722ca 4115 goto qc_host_busy;
afaf5a2d
DS		 4116
4117 rval = qla4xxx_send_command_to_isp(ha, srb);
4118 if (rval != QLA_SUCCESS)
4119 goto qc_host_busy_free_sp;
4120
afaf5a2d
DS		 4121 return 0;
4122
4123qc_host_busy_free_sp:
4124 qla4xxx_srb_free_dma(ha, srb);
4125 mempool_free(srb, ha->srb_mempool);
4126
afaf5a2d
DS		 4127qc_host_busy:
4128 return SCSI_MLQUEUE_HOST_BUSY;
4129
4130qc_fail_command:
8f0722ca 4131 cmd->scsi_done(cmd);
afaf5a2d
DS		 4132
4133 return 0;
4134}
4135
4136/**
4137 * qla4xxx_mem_free - frees memory allocated to adapter
4138 * @ha: Pointer to host adapter structure.
4139 *
4140 * Frees memory previously allocated by qla4xxx_mem_alloc
4141 **/
4142static void qla4xxx_mem_free(struct scsi_qla_host *ha)
4143{
4144 if (ha->queues)
4145 dma_free_coherent(&ha->pdev->dev, ha->queues_len, ha->queues,
4146 ha->queues_dma);
4147
068237c8
TP		 4148 if (ha->fw_dump)
4149 vfree(ha->fw_dump);
4150
afaf5a2d
DS		 4151 ha->queues_len = 0;
4152 ha->queues = NULL;
4153 ha->queues_dma = 0;
4154 ha->request_ring = NULL;
4155 ha->request_dma = 0;
4156 ha->response_ring = NULL;
4157 ha->response_dma = 0;
4158 ha->shadow_regs = NULL;
4159 ha->shadow_regs_dma = 0;
068237c8
TP		 4160 ha->fw_dump = NULL;
4161 ha->fw_dump_size = 0;
afaf5a2d
DS		 4162
4163 /* Free srb pool. */
b03f3c3e 4164 mempool_destroy(ha->srb_mempool);
afaf5a2d
DS		 4165 ha->srb_mempool = NULL;
4166
08cf8ab3 4167 dma_pool_destroy(ha->chap_dma_pool);
b3a271a9 4168
4549415a
LC		 4169 if (ha->chap_list)
4170 vfree(ha->chap_list);
4171 ha->chap_list = NULL;
4172
08cf8ab3 4173 dma_pool_destroy(ha->fw_ddb_dma_pool);
13483730 4174
afaf5a2d 4175 /* release io space registers */
f4f5df23
VC		 4176 if (is_qla8022(ha)) {
4177 if (ha->nx_pcibase)
4178 iounmap(
4179 (struct device_reg_82xx __iomem *)ha->nx_pcibase);
b37ca418 4180 } else if (is_qla8032(ha) || is_qla8042(ha)) {
6e7b4292
VC		 4181 if (ha->nx_pcibase)
4182 iounmap(
4183 (struct device_reg_83xx __iomem *)ha->nx_pcibase);
4184 } else if (ha->reg) {
afaf5a2d 4185 iounmap(ha->reg);
6e7b4292
VC		 4186 }
4187
4188 if (ha->reset_tmplt.buff)
4189 vfree(ha->reset_tmplt.buff);
4190
afaf5a2d
DS		 4191 pci_release_regions(ha->pdev);
4192}
4193
4194/**
4195 * qla4xxx_mem_alloc - allocates memory for use by adapter.
4196 * @ha: Pointer to host adapter structure
4197 *
4198 * Allocates DMA memory for request and response queues. Also allocates memory
4199 * for srbs.
4200 **/
4201static int qla4xxx_mem_alloc(struct scsi_qla_host *ha)
4202{
4203 unsigned long align;
4204
4205 /* Allocate contiguous block of DMA memory for queues. */
4206 ha->queues_len = ((REQUEST_QUEUE_DEPTH * QUEUE_SIZE) +
4207 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE) +
4208 sizeof(struct shadow_regs) +
4209 MEM_ALIGN_VALUE +
4210 (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
750afb08
LC		 4211 ha->queues = dma_alloc_coherent(&ha->pdev->dev, ha->queues_len,
4212 &ha->queues_dma, GFP_KERNEL);
afaf5a2d 4213 if (ha->queues == NULL) {
c2660df3
VC		 4214 ql4_printk(KERN_WARNING, ha,
4215 "Memory Allocation failed - queues.\n");
afaf5a2d
DS		 4216
4217 goto mem_alloc_error_exit;
4218 }
afaf5a2d
DS		 4219
4220 /*
4221 * As per RISC alignment requirements -- the bus-address must be a
4222 * multiple of the request-ring size (in bytes).
4223 */
4224 align = 0;
4225 if ((unsigned long)ha->queues_dma & (MEM_ALIGN_VALUE - 1))
4226 align = MEM_ALIGN_VALUE - ((unsigned long)ha->queues_dma &
4227 (MEM_ALIGN_VALUE - 1));
4228
4229 /* Update request and response queue pointers. */
4230 ha->request_dma = ha->queues_dma + align;
4231 ha->request_ring = (struct queue_entry *) (ha->queues + align);
4232 ha->response_dma = ha->queues_dma + align +
4233 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE);
4234 ha->response_ring = (struct queue_entry *) (ha->queues + align +
4235 (REQUEST_QUEUE_DEPTH *
4236 QUEUE_SIZE));
4237 ha->shadow_regs_dma = ha->queues_dma + align +
4238 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE) +
4239 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE);
4240 ha->shadow_regs = (struct shadow_regs *) (ha->queues + align +
4241 (REQUEST_QUEUE_DEPTH *
4242 QUEUE_SIZE) +
4243 (RESPONSE_QUEUE_DEPTH *
4244 QUEUE_SIZE));
4245
4246 /* Allocate memory for srb pool. */
4247 ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab,
4248 mempool_free_slab, srb_cachep);
4249 if (ha->srb_mempool == NULL) {
c2660df3
VC		 4250 ql4_printk(KERN_WARNING, ha,
4251 "Memory Allocation failed - SRB Pool.\n");
afaf5a2d
DS		 4252
4253 goto mem_alloc_error_exit;
4254 }
4255
b3a271a9
MR		 4256 ha->chap_dma_pool = dma_pool_create("ql4_chap", &ha->pdev->dev,
4257 CHAP_DMA_BLOCK_SIZE, 8, 0);
4258
4259 if (ha->chap_dma_pool == NULL) {
4260 ql4_printk(KERN_WARNING, ha,
4261 "%s: chap_dma_pool allocation failed..\n", __func__);
4262 goto mem_alloc_error_exit;
4263 }
4264
13483730
MC		 4265 ha->fw_ddb_dma_pool = dma_pool_create("ql4_fw_ddb", &ha->pdev->dev,
4266 DDB_DMA_BLOCK_SIZE, 8, 0);
4267
4268 if (ha->fw_ddb_dma_pool == NULL) {
4269 ql4_printk(KERN_WARNING, ha,
4270 "%s: fw_ddb_dma_pool allocation failed..\n",
4271 __func__);
4272 goto mem_alloc_error_exit;
4273 }
4274
afaf5a2d
DS		 4275 return QLA_SUCCESS;
4276
4277mem_alloc_error_exit:
4278 qla4xxx_mem_free(ha);
4279 return QLA_ERROR;
4280}
4281
4f77083e
MH		 4282/**
4283 * qla4_8xxx_check_temp - Check the ISP82XX temperature.
4284 * @ha: adapter block pointer.
4285 *
4286 * Note: The caller should not hold the idc lock.
4287 **/
4288static int qla4_8xxx_check_temp(struct scsi_qla_host *ha)
4289{
4290 uint32_t temp, temp_state, temp_val;
4291 int status = QLA_SUCCESS;
4292
33693c7a 4293 temp = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_TEMP_STATE);
4f77083e
MH		 4294
4295 temp_state = qla82xx_get_temp_state(temp);
4296 temp_val = qla82xx_get_temp_val(temp);
4297
4298 if (temp_state == QLA82XX_TEMP_PANIC) {
4299 ql4_printk(KERN_WARNING, ha, "Device temperature %d degrees C"
4300 " exceeds maximum allowed. Hardware has been shut"
4301 " down.\n", temp_val);
4302 status = QLA_ERROR;
4303 } else if (temp_state == QLA82XX_TEMP_WARN) {
4304 if (ha->temperature == QLA82XX_TEMP_NORMAL)
4305 ql4_printk(KERN_WARNING, ha, "Device temperature %d"
4306 " degrees C exceeds operating range."
4307 " Immediate action needed.\n", temp_val);
4308 } else {
4309 if (ha->temperature == QLA82XX_TEMP_WARN)
4310 ql4_printk(KERN_INFO, ha, "Device temperature is"
4311 " now %d degrees C in normal range.\n",
4312 temp_val);
4313 }
4314 ha->temperature = temp_state;
4315 return status;
4316}
4317
f4f5df23
VC		 4318/**
4319 * qla4_8xxx_check_fw_alive - Check firmware health
4320 * @ha: Pointer to host adapter structure.
4321 *
4322 * Context: Interrupt
4323 **/
9ee91a38 4324static int qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha)
f4f5df23 4325{
9ee91a38
SS		 4326 uint32_t fw_heartbeat_counter;
4327 int status = QLA_SUCCESS;
f4f5df23 4328
33693c7a
VC		 4329 fw_heartbeat_counter = qla4_8xxx_rd_direct(ha,
4330 QLA8XXX_PEG_ALIVE_COUNTER);
2232be0d
LC		 4331 /* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */
4332 if (fw_heartbeat_counter == 0xffffffff) {
4333 DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Device in frozen "
4334 "state, QLA82XX_PEG_ALIVE_COUNTER is 0xffffffff\n",
4335 ha->host_no, __func__));
9ee91a38 4336 return status;
2232be0d 4337 }
f4f5df23
VC		 4338
4339 if (ha->fw_heartbeat_counter == fw_heartbeat_counter) {
4340 ha->seconds_since_last_heartbeat++;
4341 /* FW not alive after 2 seconds */
4342 if (ha->seconds_since_last_heartbeat == 2) {
4343 ha->seconds_since_last_heartbeat = 0;
6e7b4292 4344 qla4_8xxx_dump_peg_reg(ha);
9ee91a38 4345 status = QLA_ERROR;
f4f5df23 4346 }
99457d75
LC		 4347 } else
4348 ha->seconds_since_last_heartbeat = 0;
4349
f4f5df23 4350 ha->fw_heartbeat_counter = fw_heartbeat_counter;
9ee91a38 4351 return status;
f4f5df23
VC		 4352}
4353
6e7b4292
VC		 4354static void qla4_8xxx_process_fw_error(struct scsi_qla_host *ha)
4355{
4356 uint32_t halt_status;
4357 int halt_status_unrecoverable = 0;
4358
4359 halt_status = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_HALT_STATUS1);
4360
4361 if (is_qla8022(ha)) {
4362 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
4363 __func__);
4364 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
4365 CRB_NIU_XG_PAUSE_CTL_P0 |
4366 CRB_NIU_XG_PAUSE_CTL_P1);
4367
4368 if (QLA82XX_FWERROR_CODE(halt_status) == 0x67)
4369 ql4_printk(KERN_ERR, ha, "%s: Firmware aborted with error code 0x00006700. Device is being reset\n",
4370 __func__);
4371 if (halt_status & HALT_STATUS_UNRECOVERABLE)
4372 halt_status_unrecoverable = 1;
b37ca418 4373 } else if (is_qla8032(ha) || is_qla8042(ha)) {
6e7b4292
VC		 4374 if (halt_status & QLA83XX_HALT_STATUS_FW_RESET)
4375 ql4_printk(KERN_ERR, ha, "%s: Firmware error detected device is being reset\n",
4376 __func__);
4377 else if (halt_status & QLA83XX_HALT_STATUS_UNRECOVERABLE)
4378 halt_status_unrecoverable = 1;
4379 }
4380
4381 /*
4382 * Since we cannot change dev_state in interrupt context,
4383 * set appropriate DPC flag then wakeup DPC
4384 */
4385 if (halt_status_unrecoverable) {
4386 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags);
4387 } else {
4388 ql4_printk(KERN_INFO, ha, "%s: detect abort needed!\n",
4389 __func__);
4390 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4391 }
4392 qla4xxx_mailbox_premature_completion(ha);
4393 qla4xxx_wake_dpc(ha);
4394}
4395
f4f5df23
VC		 4396/**
4397 * qla4_8xxx_watchdog - Poll dev state
4398 * @ha: Pointer to host adapter structure.
4399 *
4400 * Context: Interrupt
4401 **/
4402void qla4_8xxx_watchdog(struct scsi_qla_host *ha)
4403{
6e7b4292 4404 uint32_t dev_state;
6cf94121 4405 uint32_t idc_ctrl;
f4f5df23 4406
a083e8bc
VC		 4407 if (is_qla8032(ha) &&
4408 (qla4_83xx_is_detached(ha) == QLA_SUCCESS))
4409 WARN_ONCE(1, "%s: iSCSI function %d marked invisible\n",
4410 __func__, ha->func_num);
4411
f4f5df23 4412 /* don't poll if reset is going on */
d56a1f7b
LC		 4413 if (!(test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) ||
4414 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
977f46a4 4415 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags))) {
33693c7a 4416 dev_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE);
4f77083e
MH		 4417
4418 if (qla4_8xxx_check_temp(ha)) {
6e7b4292
VC		 4419 if (is_qla8022(ha)) {
4420 ql4_printk(KERN_INFO, ha, "disabling pause transmit on port 0 & 1.\n");
4421 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
4422 CRB_NIU_XG_PAUSE_CTL_P0 |
4423 CRB_NIU_XG_PAUSE_CTL_P1);
4424 }
4f77083e
MH		 4425 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags);
4426 qla4xxx_wake_dpc(ha);
de8c72da 4427 } else if (dev_state == QLA8XXX_DEV_NEED_RESET &&
6e7b4292 4428 !test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
6cf94121
VC		 4429
4430 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED RESET!\n",
4431 __func__);
4432
b37ca418 4433 if (is_qla8032(ha) || is_qla8042(ha)) {
6cf94121
VC		 4434 idc_ctrl = qla4_83xx_rd_reg(ha,
4435 QLA83XX_IDC_DRV_CTRL);
4436 if (!(idc_ctrl & GRACEFUL_RESET_BIT1)) {
4437 ql4_printk(KERN_INFO, ha, "%s: Graceful reset bit is not set\n",
4438 __func__);
4439 qla4xxx_mailbox_premature_completion(
4440 ha);
4441 }
4442 }
4443
b37ca418 4444 if ((is_qla8032(ha) || is_qla8042(ha)) ||
6e7b4292 4445 (is_qla8022(ha) && !ql4xdontresethba)) {
3930b8c1
VC		 4446 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4447 qla4xxx_wake_dpc(ha);
3930b8c1 4448 }
de8c72da 4449 } else if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT &&
f4f5df23 4450 !test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) {
3930b8c1
VC		 4451 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED QUIES!\n",
4452 __func__);
f4f5df23
VC		 4453 set_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags);
4454 qla4xxx_wake_dpc(ha);
4455 } else {
4456 /* Check firmware health */
6e7b4292
VC		 4457 if (qla4_8xxx_check_fw_alive(ha))
4458 qla4_8xxx_process_fw_error(ha);
f4f5df23
VC		 4459 }
4460 }
4461}
4462
4a4bc2e9 4463static void qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)
13483730
MC		 4464{
4465 struct iscsi_session *sess;
4466 struct ddb_entry *ddb_entry;
4467 struct scsi_qla_host *ha;
4468
4469 sess = cls_sess->dd_data;
4470 ddb_entry = sess->dd_data;
4471 ha = ddb_entry->ha;
4472
4473 if (!(ddb_entry->ddb_type == FLASH_DDB))
4474 return;
4475
4476 if (adapter_up(ha) && !test_bit(DF_RELOGIN, &ddb_entry->flags) &&
4477 !iscsi_is_session_online(cls_sess)) {
4478 if (atomic_read(&ddb_entry->retry_relogin_timer) !=
4479 INVALID_ENTRY) {
4480 if (atomic_read(&ddb_entry->retry_relogin_timer) ==
4481 0) {
4482 atomic_set(&ddb_entry->retry_relogin_timer,
4483 INVALID_ENTRY);
4484 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
4485 set_bit(DF_RELOGIN, &ddb_entry->flags);
4486 DEBUG2(ql4_printk(KERN_INFO, ha,
4487 "%s: index [%d] login device\n",
4488 __func__, ddb_entry->fw_ddb_index));
4489 } else
4490 atomic_dec(&ddb_entry->retry_relogin_timer);
4491 }
4492 }
4493
4494 /* Wait for relogin to timeout */
4495 if (atomic_read(&ddb_entry->relogin_timer) &&
4496 (atomic_dec_and_test(&ddb_entry->relogin_timer) != 0)) {
4497 /*
4498 * If the relogin times out and the device is
4499 * still NOT ONLINE then try and relogin again.
4500 */
4501 if (!iscsi_is_session_online(cls_sess)) {
4502 /* Reset retry relogin timer */
4503 atomic_inc(&ddb_entry->relogin_retry_count);
4504 DEBUG2(ql4_printk(KERN_INFO, ha,
4505 "%s: index[%d] relogin timed out-retrying"
4506 " relogin (%d), retry (%d)\n", __func__,
4507 ddb_entry->fw_ddb_index,
4508 atomic_read(&ddb_entry->relogin_retry_count),
4509 ddb_entry->default_time2wait + 4));
4510 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
4511 atomic_set(&ddb_entry->retry_relogin_timer,
4512 ddb_entry->default_time2wait + 4);
4513 }
4514 }
4515}
4516
afaf5a2d
DS		 4517/**
4518 * qla4xxx_timer - checks every second for work to do.
4519 * @ha: Pointer to host adapter structure.
4520 **/
d744644a 4521static void qla4xxx_timer(struct timer_list *t)
afaf5a2d 4522{
d744644a 4523 struct scsi_qla_host *ha = from_timer(ha, t, timer);
afaf5a2d 4524 int start_dpc = 0;
2232be0d
LC		 4525 uint16_t w;
4526
13483730
MC		 4527 iscsi_host_for_each_session(ha->host, qla4xxx_check_relogin_flash_ddb);
4528
2232be0d
LC		 4529 /* If we are in the middle of AER/EEH processing
4530 * skip any processing and reschedule the timer
4531 */
4532 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
4533 mod_timer(&ha->timer, jiffies + HZ);
4534 return;
4535 }
4536
4537 /* Hardware read to trigger an EEH error during mailbox waits. */
4538 if (!pci_channel_offline(ha->pdev))
4539 pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
afaf5a2d 4540
6e7b4292 4541 if (is_qla80XX(ha))
f4f5df23 4542 qla4_8xxx_watchdog(ha);
f4f5df23 4543
ee996a69 4544 if (is_qla40XX(ha)) {
f4f5df23
VC		 4545 /* Check for heartbeat interval. */
4546 if (ha->firmware_options & FWOPT_HEARTBEAT_ENABLE &&
4547 ha->heartbeat_interval != 0) {
4548 ha->seconds_since_last_heartbeat++;
4549 if (ha->seconds_since_last_heartbeat >
4550 ha->heartbeat_interval + 2)
4551 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4552 }
afaf5a2d
DS		 4553 }
4554
ff884430
VC		 4555 /* Process any deferred work. */
4556 if (!list_empty(&ha->work_list))
4557 start_dpc++;
4558
afaf5a2d 4559 /* Wakeup the dpc routine for this adapter, if needed. */
1b46807e 4560 if (start_dpc ||
afaf5a2d
DS		 4561 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
4562 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags) ||
4563 test_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags) ||
f4f5df23 4564 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) ||
afaf5a2d
DS		 4565 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
4566 test_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags) ||
065aa1b4 4567 test_bit(DPC_LINK_CHANGED, &ha->dpc_flags) ||
f4f5df23
VC		 4568 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) ||
4569 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) ||
906cbf3d 4570 test_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags) ||
1b46807e 4571 test_bit(DPC_AEN, &ha->dpc_flags)) {
afaf5a2d
DS		 4572 DEBUG2(printk("scsi%ld: %s: scheduling dpc routine"
4573 " - dpc flags = 0x%lx\n",
4574 ha->host_no, __func__, ha->dpc_flags));
f4f5df23 4575 qla4xxx_wake_dpc(ha);
afaf5a2d
DS		 4576 }
4577
4578 /* Reschedule timer thread to call us back in one second */
4579 mod_timer(&ha->timer, jiffies + HZ);
4580
4581 DEBUG2(ha->seconds_since_last_intr++);
4582}
4583
4584/**
4585 * qla4xxx_cmd_wait - waits for all outstanding commands to complete
4586 * @ha: Pointer to host adapter structure.
4587 *
4588 * This routine stalls the driver until all outstanding commands are returned.
4589 * Caller must release the Hardware Lock prior to calling this routine.
4590 **/
4591static int qla4xxx_cmd_wait(struct scsi_qla_host *ha)
4592{
4593 uint32_t index = 0;
afaf5a2d
DS		 4594 unsigned long flags;
4595 struct scsi_cmnd *cmd;
61d9a2b6
TP		 4596 unsigned long wtime;
4597 uint32_t wtmo;
afaf5a2d 4598
61d9a2b6
TP		 4599 if (is_qla40XX(ha))
4600 wtmo = WAIT_CMD_TOV;
4601 else
4602 wtmo = ha->nx_reset_timeout / 2;
4603
4604 wtime = jiffies + (wtmo * HZ);
f4f5df23 4605
61d9a2b6
TP		 4606 DEBUG2(ql4_printk(KERN_INFO, ha,
4607 "Wait up to %u seconds for cmds to complete\n",
4608 wtmo));
f4f5df23
VC		 4609
4610 while (!time_after_eq(jiffies, wtime)) {
afaf5a2d
DS		 4611 spin_lock_irqsave(&ha->hardware_lock, flags);
4612 /* Find a command that hasn't completed. */
4613 for (index = 0; index < ha->host->can_queue; index++) {
4614 cmd = scsi_host_find_tag(ha->host, index);
a1e0063d
MC		 4615 /*
4616 * We cannot just check if the index is valid,
4617 * becase if we are run from the scsi eh, then
4618 * the scsi/block layer is going to prevent
4619 * the tag from being released.
4620 */
4621 if (cmd != NULL && CMD_SP(cmd))
afaf5a2d
DS		 4622 break;
4623 }
4624 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4625
4626 /* If No Commands are pending, wait is complete */
f4f5df23
VC		 4627 if (index == ha->host->can_queue)
4628 return QLA_SUCCESS;
afaf5a2d 4629
f4f5df23
VC		 4630 msleep(1000);
4631 }
4632 /* If we timed out on waiting for commands to come back
4633 * return ERROR. */
4634 return QLA_ERROR;
afaf5a2d
DS		 4635}
4636
f4f5df23 4637int qla4xxx_hw_reset(struct scsi_qla_host *ha)
afaf5a2d 4638{
afaf5a2d 4639 uint32_t ctrl_status;
477ffb9d
DS		 4640 unsigned long flags = 0;
4641
4642 DEBUG2(printk(KERN_ERR "scsi%ld: %s\n", ha->host_no, __func__));
afaf5a2d 4643
f4f5df23
VC		 4644 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS)
4645 return QLA_ERROR;
4646
afaf5a2d
DS		 4647 spin_lock_irqsave(&ha->hardware_lock, flags);
4648
4649 /*
4650 * If the SCSI Reset Interrupt bit is set, clear it.
4651 * Otherwise, the Soft Reset won't work.
4652 */
4653 ctrl_status = readw(&ha->reg->ctrl_status);
4654 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0)
4655 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status);
4656
4657 /* Issue Soft Reset */
4658 writel(set_rmask(CSR_SOFT_RESET), &ha->reg->ctrl_status);
4659 readl(&ha->reg->ctrl_status);
4660
4661 spin_unlock_irqrestore(&ha->hardware_lock, flags);
f4f5df23 4662 return QLA_SUCCESS;
477ffb9d
DS		 4663}
4664
4665/**
4666 * qla4xxx_soft_reset - performs soft reset.
4667 * @ha: Pointer to host adapter structure.
4668 **/
4669int qla4xxx_soft_reset(struct scsi_qla_host *ha)
4670{
4671 uint32_t max_wait_time;
4672 unsigned long flags = 0;
f931c534 4673 int status;
477ffb9d
DS		 4674 uint32_t ctrl_status;
4675
f931c534
VC		 4676 status = qla4xxx_hw_reset(ha);
4677 if (status != QLA_SUCCESS)
4678 return status;
afaf5a2d 4679
f931c534 4680 status = QLA_ERROR;
afaf5a2d
DS		 4681 /* Wait until the Network Reset Intr bit is cleared */
4682 max_wait_time = RESET_INTR_TOV;
4683 do {
4684 spin_lock_irqsave(&ha->hardware_lock, flags);
4685 ctrl_status = readw(&ha->reg->ctrl_status);
4686 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4687
4688 if ((ctrl_status & CSR_NET_RESET_INTR) == 0)
4689 break;
4690
4691 msleep(1000);
4692 } while ((--max_wait_time));
4693
4694 if ((ctrl_status & CSR_NET_RESET_INTR) != 0) {
4695 DEBUG2(printk(KERN_WARNING
4696 "scsi%ld: Network Reset Intr not cleared by "
4697 "Network function, clearing it now!\n",
4698 ha->host_no));
4699 spin_lock_irqsave(&ha->hardware_lock, flags);
4700 writel(set_rmask(CSR_NET_RESET_INTR), &ha->reg->ctrl_status);
4701 readl(&ha->reg->ctrl_status);
4702 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4703 }
4704
4705 /* Wait until the firmware tells us the Soft Reset is done */
4706 max_wait_time = SOFT_RESET_TOV;
4707 do {
4708 spin_lock_irqsave(&ha->hardware_lock, flags);
4709 ctrl_status = readw(&ha->reg->ctrl_status);
4710 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4711
4712 if ((ctrl_status & CSR_SOFT_RESET) == 0) {
4713 status = QLA_SUCCESS;
4714 break;
4715 }
4716
4717 msleep(1000);
4718 } while ((--max_wait_time));
4719
4720 /*
4721 * Also, make sure that the SCSI Reset Interrupt bit has been cleared
4722 * after the soft reset has taken place.
4723 */
4724 spin_lock_irqsave(&ha->hardware_lock, flags);
4725 ctrl_status = readw(&ha->reg->ctrl_status);
4726 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) {
4727 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status);
4728 readl(&ha->reg->ctrl_status);
4729 }
4730 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4731
4732 /* If soft reset fails then most probably the bios on other
4733 * function is also enabled.
4734 * Since the initialization is sequential the other fn
4735 * wont be able to acknowledge the soft reset.
4736 * Issue a force soft reset to workaround this scenario.
4737 */
4738 if (max_wait_time == 0) {
4739 /* Issue Force Soft Reset */
4740 spin_lock_irqsave(&ha->hardware_lock, flags);
4741 writel(set_rmask(CSR_FORCE_SOFT_RESET), &ha->reg->ctrl_status);
4742 readl(&ha->reg->ctrl_status);
4743 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4744 /* Wait until the firmware tells us the Soft Reset is done */
4745 max_wait_time = SOFT_RESET_TOV;
4746 do {
4747 spin_lock_irqsave(&ha->hardware_lock, flags);
4748 ctrl_status = readw(&ha->reg->ctrl_status);
4749 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4750
4751 if ((ctrl_status & CSR_FORCE_SOFT_RESET) == 0) {
4752 status = QLA_SUCCESS;
4753 break;
4754 }
4755
4756 msleep(1000);
4757 } while ((--max_wait_time));
4758 }
4759
4760 return status;
4761}
4762
afaf5a2d 4763/**
f4f5df23 4764 * qla4xxx_abort_active_cmds - returns all outstanding i/o requests to O.S.
afaf5a2d 4765 * @ha: Pointer to host adapter structure.
f4f5df23 4766 * @res: returned scsi status
afaf5a2d
DS		 4767 *
4768 * This routine is called just prior to a HARD RESET to return all
4769 * outstanding commands back to the Operating System.
4770 * Caller should make sure that the following locks are released
4771 * before this calling routine: Hardware lock, and io_request_lock.
4772 **/
f4f5df23 4773static void qla4xxx_abort_active_cmds(struct scsi_qla_host *ha, int res)
afaf5a2d
DS		 4774{
4775 struct srb *srb;
4776 int i;
4777 unsigned long flags;
4778
4779 spin_lock_irqsave(&ha->hardware_lock, flags);
4780 for (i = 0; i < ha->host->can_queue; i++) {
4781 srb = qla4xxx_del_from_active_array(ha, i);
4782 if (srb != NULL) {
f4f5df23 4783 srb->cmd->result = res;
09a0f719 4784 kref_put(&srb->srb_ref, qla4xxx_srb_compl);
afaf5a2d
DS		 4785 }
4786 }
4787 spin_unlock_irqrestore(&ha->hardware_lock, flags);
afaf5a2d
DS		 4788}
4789
f4f5df23
VC		 4790void qla4xxx_dead_adapter_cleanup(struct scsi_qla_host *ha)
4791{
4792 clear_bit(AF_ONLINE, &ha->flags);
4793
4794 /* Disable the board */
4795 ql4_printk(KERN_INFO, ha, "Disabling the board\n");
f4f5df23
VC		 4796
4797 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
4798 qla4xxx_mark_all_devices_missing(ha);
4799 clear_bit(AF_INIT_DONE, &ha->flags);
4800}
4801
b3a271a9
MR		 4802static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session)
4803{
4804 struct iscsi_session *sess;
4805 struct ddb_entry *ddb_entry;
4806
4807 sess = cls_session->dd_data;
4808 ddb_entry = sess->dd_data;
4809 ddb_entry->fw_ddb_device_state = DDB_DS_SESSION_FAILED;
13483730
MC		 4810
4811 if (ddb_entry->ddb_type == FLASH_DDB)
4812 iscsi_block_session(ddb_entry->sess);
4813 else
4814 iscsi_session_failure(cls_session->dd_data,
4815 ISCSI_ERR_CONN_FAILED);
b3a271a9
MR		 4816}
4817
afaf5a2d
DS		 4818/**
4819 * qla4xxx_recover_adapter - recovers adapter after a fatal error
4820 * @ha: Pointer to host adapter structure.
afaf5a2d 4821 **/
f4f5df23 4822static int qla4xxx_recover_adapter(struct scsi_qla_host *ha)
afaf5a2d 4823{
f4f5df23
VC		 4824 int status = QLA_ERROR;
4825 uint8_t reset_chip = 0;
8e0f3a66 4826 uint32_t dev_state;
9ee91a38 4827 unsigned long wait;
afaf5a2d
DS		 4828
4829 /* Stall incoming I/O until we are done */
f4f5df23 4830 scsi_block_requests(ha->host);
afaf5a2d 4831 clear_bit(AF_ONLINE, &ha->flags);
b3a271a9 4832 clear_bit(AF_LINK_UP, &ha->flags);
50a29aec 4833
f4f5df23 4834 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: adapter OFFLINE\n", __func__));
afaf5a2d 4835
f4f5df23 4836 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
afaf5a2d 4837
b37ca418 4838 if ((is_qla8032(ha) || is_qla8042(ha)) &&
546fef27
TP		 4839 !test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) {
4840 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
4841 __func__);
4842 /* disable pause frame for ISP83xx */
4843 qla4_83xx_disable_pause(ha);
4844 }
4845
b3a271a9
MR		 4846 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session);
4847
f4f5df23
VC		 4848 if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
4849 reset_chip = 1;
afaf5a2d 4850
f4f5df23
VC		 4851 /* For the DPC_RESET_HA_INTR case (ISP-4xxx specific)
4852 * do not reset adapter, jump to initialize_adapter */
4853 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
4854 status = QLA_SUCCESS;
4855 goto recover_ha_init_adapter;
4856 }
afaf5a2d 4857
6e7b4292 4858 /* For the ISP-8xxx adapter, issue a stop_firmware if invoked
f4f5df23 4859 * from eh_host_reset or ioctl module */
6e7b4292 4860 if (is_qla80XX(ha) && !reset_chip &&
f4f5df23
VC		 4861 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) {
4862
4863 DEBUG2(ql4_printk(KERN_INFO, ha,
4864 "scsi%ld: %s - Performing stop_firmware...\n",
4865 ha->host_no, __func__));
4866 status = ha->isp_ops->reset_firmware(ha);
4867 if (status == QLA_SUCCESS) {
f4f5df23
VC		 4868 ha->isp_ops->disable_intrs(ha);
4869 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
4870 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
4871 } else {
4872 /* If the stop_firmware fails then
4873 * reset the entire chip */
4874 reset_chip = 1;
4875 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
4876 set_bit(DPC_RESET_HA, &ha->dpc_flags);
4877 }
4878 }
dca05c4c 4879
f4f5df23 4880 /* Issue full chip reset if recovering from a catastrophic error,
6e7b4292 4881 * or if stop_firmware fails for ISP-8xxx.
f4f5df23 4882 * This is the default case for ISP-4xxx */
ee996a69
VC		 4883 if (is_qla40XX(ha) || reset_chip) {
4884 if (is_qla40XX(ha))
9ee91a38
SS		 4885 goto chip_reset;
4886
6e7b4292 4887 /* Check if 8XXX firmware is alive or not
9ee91a38
SS		 4888 * We may have arrived here from NEED_RESET
4889 * detection only */
4890 if (test_bit(AF_FW_RECOVERY, &ha->flags))
4891 goto chip_reset;
4892
4893 wait = jiffies + (FW_ALIVE_WAIT_TOV * HZ);
4894 while (time_before(jiffies, wait)) {
4895 if (qla4_8xxx_check_fw_alive(ha)) {
4896 qla4xxx_mailbox_premature_completion(ha);
4897 break;
4898 }
4899
4900 set_current_state(TASK_UNINTERRUPTIBLE);
4901 schedule_timeout(HZ);
4902 }
da106212 4903chip_reset:
2bd1e2be
NJ		 4904 if (!test_bit(AF_FW_RECOVERY, &ha->flags))
4905 qla4xxx_cmd_wait(ha);
da106212 4906
f4f5df23 4907 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
f4f5df23
VC		 4908 DEBUG2(ql4_printk(KERN_INFO, ha,
4909 "scsi%ld: %s - Performing chip reset..\n",
4910 ha->host_no, __func__));
4911 status = ha->isp_ops->reset_chip(ha);
61d9a2b6 4912 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
f4f5df23 4913 }
afaf5a2d
DS		 4914
4915 /* Flush any pending ddb changed AENs */
4916 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
4917
f4f5df23
VC		 4918recover_ha_init_adapter:
4919 /* Upon successful firmware/chip reset, re-initialize the adapter */
afaf5a2d 4920 if (status == QLA_SUCCESS) {
f4f5df23
VC		 4921 /* For ISP-4xxx, force function 1 to always initialize
4922 * before function 3 to prevent both funcions from
4923 * stepping on top of the other */
ee996a69 4924 if (is_qla40XX(ha) && (ha->mac_index == 3))
f4f5df23
VC		 4925 ssleep(6);
4926
4927 /* NOTE: AF_ONLINE flag set upon successful completion of
37418cc6 4928 * qla4xxx_initialize_adapter */
13483730 4929 status = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
37418cc6
NJ		 4930 if (is_qla80XX(ha) && (status == QLA_ERROR)) {
4931 status = qla4_8xxx_check_init_adapter_retry(ha);
4932 if (status == QLA_ERROR) {
4933 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Don't retry recover adapter\n",
4934 ha->host_no, __func__);
4935 qla4xxx_dead_adapter_cleanup(ha);
4936 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
4937 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
4938 clear_bit(DPC_RESET_HA_FW_CONTEXT,
4939 &ha->dpc_flags);
4940 goto exit_recover;
4941 }
4942 }
afaf5a2d
DS		 4943 }
4944
f4f5df23
VC		 4945 /* Retry failed adapter initialization, if necessary
4946 * Do not retry initialize_adapter for RESET_HA_INTR (ISP-4xxx specific)
4947 * case to prevent ping-pong resets between functions */
4948 if (!test_bit(AF_ONLINE, &ha->flags) &&
4949 !test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
afaf5a2d 4950 /* Adapter initialization failed, see if we can retry
f4f5df23
VC		 4951 * resetting the ha.
4952 * Since we don't want to block the DPC for too long
4953 * with multiple resets in the same thread,
4954 * utilize DPC to retry */
6e7b4292 4955 if (is_qla80XX(ha)) {
33693c7a
VC		 4956 ha->isp_ops->idc_lock(ha);
4957 dev_state = qla4_8xxx_rd_direct(ha,
4958 QLA8XXX_CRB_DEV_STATE);
4959 ha->isp_ops->idc_unlock(ha);
de8c72da 4960 if (dev_state == QLA8XXX_DEV_FAILED) {
8e0f3a66
SR		 4961 ql4_printk(KERN_INFO, ha, "%s: don't retry "
4962 "recover adapter. H/W is in Failed "
4963 "state\n", __func__);
4964 qla4xxx_dead_adapter_cleanup(ha);
4965 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
4966 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
4967 clear_bit(DPC_RESET_HA_FW_CONTEXT,
4968 &ha->dpc_flags);
4969 status = QLA_ERROR;
4970
4971 goto exit_recover;
4972 }
4973 }
4974
afaf5a2d
DS		 4975 if (!test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags)) {
4976 ha->retry_reset_ha_cnt = MAX_RESET_HA_RETRIES;
4977 DEBUG2(printk("scsi%ld: recover adapter - retrying "
4978 "(%d) more times\n", ha->host_no,
4979 ha->retry_reset_ha_cnt));
4980 set_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
4981 status = QLA_ERROR;
4982 } else {
4983 if (ha->retry_reset_ha_cnt > 0) {
4984 /* Schedule another Reset HA--DPC will retry */
4985 ha->retry_reset_ha_cnt--;
4986 DEBUG2(printk("scsi%ld: recover adapter - "
4987 "retry remaining %d\n",
4988 ha->host_no,
4989 ha->retry_reset_ha_cnt));
4990 status = QLA_ERROR;
4991 }
4992
4993 if (ha->retry_reset_ha_cnt == 0) {
4994 /* Recover adapter retries have been exhausted.
4995 * Adapter DEAD */
4996 DEBUG2(printk("scsi%ld: recover adapter "
4997 "failed - board disabled\n",
4998 ha->host_no));
f4f5df23 4999 qla4xxx_dead_adapter_cleanup(ha);
afaf5a2d
DS		 5000 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
5001 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
f4f5df23 5002 clear_bit(DPC_RESET_HA_FW_CONTEXT,
afaf5a2d
DS		 5003 &ha->dpc_flags);
5004 status = QLA_ERROR;
5005 }
5006 }
5007 } else {
5008 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
f4f5df23 5009 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
afaf5a2d
DS		 5010 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
5011 }
5012
8e0f3a66 5013exit_recover:
afaf5a2d
DS		 5014 ha->adapter_error_count++;
5015
f4f5df23
VC		 5016 if (test_bit(AF_ONLINE, &ha->flags))
5017 ha->isp_ops->enable_intrs(ha);
5018
5019 scsi_unblock_requests(ha->host);
5020
5021 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
5022 DEBUG2(printk("scsi%ld: recover adapter: %s\n", ha->host_no,
25985edc 5023 status == QLA_ERROR ? "FAILED" : "SUCCEEDED"));
afaf5a2d 5024
afaf5a2d
DS		 5025 return status;
5026}
5027
b3a271a9 5028static void qla4xxx_relogin_devices(struct iscsi_cls_session *cls_session)
2d7924e6 5029{
b3a271a9
MR		 5030 struct iscsi_session *sess;
5031 struct ddb_entry *ddb_entry;
5032 struct scsi_qla_host *ha;
2d7924e6 5033
b3a271a9
MR		 5034 sess = cls_session->dd_data;
5035 ddb_entry = sess->dd_data;
5036 ha = ddb_entry->ha;
5037 if (!iscsi_is_session_online(cls_session)) {
5038 if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) {
5039 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5040 " unblock session\n", ha->host_no, __func__,
5041 ddb_entry->fw_ddb_index);
5042 iscsi_unblock_session(ddb_entry->sess);
5043 } else {
5044 /* Trigger relogin */
13483730 5045 if (ddb_entry->ddb_type == FLASH_DDB) {
99c6a33b
AC		 5046 if (!(test_bit(DF_RELOGIN, &ddb_entry->flags) ||
5047 test_bit(DF_DISABLE_RELOGIN,
5048 &ddb_entry->flags)))
13483730
MC		 5049 qla4xxx_arm_relogin_timer(ddb_entry);
5050 } else
5051 iscsi_session_failure(cls_session->dd_data,
5052 ISCSI_ERR_CONN_FAILED);
2d7924e6
VC		 5053 }
5054 }
5055}
5056
13483730
MC		 5057int qla4xxx_unblock_flash_ddb(struct iscsi_cls_session *cls_session)
5058{
5059 struct iscsi_session *sess;
5060 struct ddb_entry *ddb_entry;
5061 struct scsi_qla_host *ha;
5062
5063 sess = cls_session->dd_data;
5064 ddb_entry = sess->dd_data;
5065 ha = ddb_entry->ha;
5066 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5067 " unblock session\n", ha->host_no, __func__,
5068 ddb_entry->fw_ddb_index);
5069
5070 iscsi_unblock_session(ddb_entry->sess);
5071
5072 /* Start scan target */
5073 if (test_bit(AF_ONLINE, &ha->flags)) {
5074 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5075 " start scan\n", ha->host_no, __func__,
5076 ddb_entry->fw_ddb_index);
5077 scsi_queue_work(ha->host, &ddb_entry->sess->scan_work);
5078 }
5079 return QLA_SUCCESS;
5080}
5081
5082int qla4xxx_unblock_ddb(struct iscsi_cls_session *cls_session)
5083{
5084 struct iscsi_session *sess;
5085 struct ddb_entry *ddb_entry;
5086 struct scsi_qla_host *ha;
80c53e64 5087 int status = QLA_SUCCESS;
13483730
MC		 5088
5089 sess = cls_session->dd_data;
5090 ddb_entry = sess->dd_data;
5091 ha = ddb_entry->ha;
5092 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
5093 " unblock user space session\n", ha->host_no, __func__,
5094 ddb_entry->fw_ddb_index);
13483730 5095
80c53e64
MR		 5096 if (!iscsi_is_session_online(cls_session)) {
5097 iscsi_conn_start(ddb_entry->conn);
5098 iscsi_conn_login_event(ddb_entry->conn,
5099 ISCSI_CONN_STATE_LOGGED_IN);
5100 } else {
5101 ql4_printk(KERN_INFO, ha,
5102 "scsi%ld: %s: ddb[%d] session [%d] already logged in\n",
5103 ha->host_no, __func__, ddb_entry->fw_ddb_index,
5104 cls_session->sid);
5105 status = QLA_ERROR;
5106 }
5107
5108 return status;
13483730
MC		 5109}
5110
b3a271a9
MR		 5111static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha)
5112{
5113 iscsi_host_for_each_session(ha->host, qla4xxx_relogin_devices);
5114}
5115
13483730
MC		 5116static void qla4xxx_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)
5117{
5118 uint16_t relogin_timer;
5119 struct iscsi_session *sess;
5120 struct ddb_entry *ddb_entry;
5121 struct scsi_qla_host *ha;
5122
5123 sess = cls_sess->dd_data;
5124 ddb_entry = sess->dd_data;
5125 ha = ddb_entry->ha;
5126
5127 relogin_timer = max(ddb_entry->default_relogin_timeout,
5128 (uint16_t)RELOGIN_TOV);
5129 atomic_set(&ddb_entry->relogin_timer, relogin_timer);
5130
5131 DEBUG2(ql4_printk(KERN_INFO, ha,
5132 "scsi%ld: Relogin index [%d]. TOV=%d\n", ha->host_no,
5133 ddb_entry->fw_ddb_index, relogin_timer));
5134
5135 qla4xxx_login_flash_ddb(cls_sess);
5136}
5137
5138static void qla4xxx_dpc_relogin(struct iscsi_cls_session *cls_sess)
5139{
5140 struct iscsi_session *sess;
5141 struct ddb_entry *ddb_entry;
5142 struct scsi_qla_host *ha;
5143
5144 sess = cls_sess->dd_data;
5145 ddb_entry = sess->dd_data;
5146 ha = ddb_entry->ha;
5147
5148 if (!(ddb_entry->ddb_type == FLASH_DDB))
5149 return;
5150
99c6a33b
AC		 5151 if (test_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags))
5152 return;
5153
13483730
MC		 5154 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags) &&
5155 !iscsi_is_session_online(cls_sess)) {
5156 DEBUG2(ql4_printk(KERN_INFO, ha,
5157 "relogin issued\n"));
5158 qla4xxx_relogin_flash_ddb(cls_sess);
5159 }
5160}
5161
f4f5df23
VC		 5162void qla4xxx_wake_dpc(struct scsi_qla_host *ha)
5163{
1b46807e 5164 if (ha->dpc_thread)
f4f5df23 5165 queue_work(ha->dpc_thread, &ha->dpc_work);
f4f5df23
VC		 5166}
5167
ff884430
VC		 5168static struct qla4_work_evt *
5169qla4xxx_alloc_work(struct scsi_qla_host *ha, uint32_t data_size,
5170 enum qla4_work_type type)
5171{
5172 struct qla4_work_evt *e;
5173 uint32_t size = sizeof(struct qla4_work_evt) + data_size;
5174
5175 e = kzalloc(size, GFP_ATOMIC);
5176 if (!e)
5177 return NULL;
5178
5179 INIT_LIST_HEAD(&e->list);
5180 e->type = type;
5181 return e;
5182}
5183
5184static void qla4xxx_post_work(struct scsi_qla_host *ha,
5185 struct qla4_work_evt *e)
5186{
5187 unsigned long flags;
5188
5189 spin_lock_irqsave(&ha->work_lock, flags);
5190 list_add_tail(&e->list, &ha->work_list);
5191 spin_unlock_irqrestore(&ha->work_lock, flags);
5192 qla4xxx_wake_dpc(ha);
5193}
5194
5195int qla4xxx_post_aen_work(struct scsi_qla_host *ha,
5196 enum iscsi_host_event_code aen_code,
5197 uint32_t data_size, uint8_t *data)
5198{
5199 struct qla4_work_evt *e;
5200
5201 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_AEN);
5202 if (!e)
5203 return QLA_ERROR;
5204
5205 e->u.aen.code = aen_code;
5206 e->u.aen.data_size = data_size;
5207 memcpy(e->u.aen.data, data, data_size);
5208
5209 qla4xxx_post_work(ha, e);
5210
5211 return QLA_SUCCESS;
5212}
5213
c0b9d3f7
VC		 5214int qla4xxx_post_ping_evt_work(struct scsi_qla_host *ha,
5215 uint32_t status, uint32_t pid,
5216 uint32_t data_size, uint8_t *data)
5217{
5218 struct qla4_work_evt *e;
5219
5220 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_PING_STATUS);
5221 if (!e)
5222 return QLA_ERROR;
5223
5224 e->u.ping.status = status;
5225 e->u.ping.pid = pid;
5226 e->u.ping.data_size = data_size;
5227 memcpy(e->u.ping.data, data, data_size);
5228
5229 qla4xxx_post_work(ha, e);
5230
5231 return QLA_SUCCESS;
5232}
5233
a7380a65 5234static void qla4xxx_do_work(struct scsi_qla_host *ha)
ff884430
VC		 5235{
5236 struct qla4_work_evt *e, *tmp;
5237 unsigned long flags;
5238 LIST_HEAD(work);
5239
5240 spin_lock_irqsave(&ha->work_lock, flags);
5241 list_splice_init(&ha->work_list, &work);
5242 spin_unlock_irqrestore(&ha->work_lock, flags);
5243
5244 list_for_each_entry_safe(e, tmp, &work, list) {
5245 list_del_init(&e->list);
5246
5247 switch (e->type) {
5248 case QLA4_EVENT_AEN:
5249 iscsi_post_host_event(ha->host_no,
5250 &qla4xxx_iscsi_transport,
5251 e->u.aen.code,
5252 e->u.aen.data_size,
5253 e->u.aen.data);
5254 break;
c0b9d3f7
VC		 5255 case QLA4_EVENT_PING_STATUS:
5256 iscsi_ping_comp_event(ha->host_no,
5257 &qla4xxx_iscsi_transport,
5258 e->u.ping.status,
5259 e->u.ping.pid,
5260 e->u.ping.data_size,
5261 e->u.ping.data);
5262 break;
ff884430
VC		 5263 default:
5264 ql4_printk(KERN_WARNING, ha, "event type: 0x%x not "
5265 "supported", e->type);
5266 }
5267 kfree(e);
5268 }
5269}
5270
afaf5a2d
DS		 5271/**
5272 * qla4xxx_do_dpc - dpc routine
5273 * @data: in our case pointer to adapter structure
5274 *
5275 * This routine is a task that is schedule by the interrupt handler
5276 * to perform the background processing for interrupts. We put it
5277 * on a task queue that is consumed whenever the scheduler runs; that's
5278 * so you can do anything (i.e. put the process to sleep etc). In fact,
5279 * the mid-level tries to sleep when it reaches the driver threshold
5280 * "host->can_queue". This can cause a panic if we were in our interrupt code.
5281 **/
c4028958 5282static void qla4xxx_do_dpc(struct work_struct *work)
afaf5a2d 5283{
c4028958
DH		 5284 struct scsi_qla_host *ha =
5285 container_of(work, struct scsi_qla_host, dpc_work);
477ffb9d 5286 int status = QLA_ERROR;
afaf5a2d 5287
a7e5688d
VC		 5288 DEBUG2(ql4_printk(KERN_INFO, ha,
5289 "scsi%ld: %s: DPC handler waking up. flags = 0x%08lx, dpc_flags = 0x%08lx\n",
5290 ha->host_no, __func__, ha->flags, ha->dpc_flags));
afaf5a2d
DS		 5291
5292 /* Initialization not yet finished. Don't do anything yet. */
5293 if (!test_bit(AF_INIT_DONE, &ha->flags))
1b46807e 5294 return;
afaf5a2d 5295
2232be0d
LC		 5296 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
5297 DEBUG2(printk(KERN_INFO "scsi%ld: %s: flags = %lx\n",
5298 ha->host_no, __func__, ha->flags));
1b46807e 5299 return;
2232be0d
LC		 5300 }
5301
ff884430
VC		 5302 /* post events to application */
5303 qla4xxx_do_work(ha);
5304
6e7b4292 5305 if (is_qla80XX(ha)) {
f4f5df23 5306 if (test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags)) {
b37ca418 5307 if (is_qla8032(ha) || is_qla8042(ha)) {
546fef27
TP		 5308 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
5309 __func__);
5310 /* disable pause frame for ISP83xx */
5311 qla4_83xx_disable_pause(ha);
5312 }
5313
33693c7a
VC		 5314 ha->isp_ops->idc_lock(ha);
5315 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
5316 QLA8XXX_DEV_FAILED);
5317 ha->isp_ops->idc_unlock(ha);
f4f5df23
VC		 5318 ql4_printk(KERN_INFO, ha, "HW State: FAILED\n");
5319 qla4_8xxx_device_state_handler(ha);
5320 }
320a61de 5321
7ab284c9
NJ		 5322 if (test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags)) {
5323 if (is_qla8042(ha)) {
5324 if (ha->idc_info.info2 &
5325 ENABLE_INTERNAL_LOOPBACK) {
5326 ql4_printk(KERN_INFO, ha, "%s: Disabling ACB\n",
5327 __func__);
5328 status = qla4_84xx_config_acb(ha,
5329 ACB_CONFIG_DISABLE);
5330 if (status != QLA_SUCCESS) {
5331 ql4_printk(KERN_INFO, ha, "%s: ACB config failed\n",
5332 __func__);
5333 }
5334 }
5335 }
320a61de 5336 qla4_83xx_post_idc_ack(ha);
7ab284c9
NJ		 5337 clear_bit(DPC_POST_IDC_ACK, &ha->dpc_flags);
5338 }
5339
5340 if (is_qla8042(ha) &&
5341 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags)) {
5342 ql4_printk(KERN_INFO, ha, "%s: Restoring ACB\n",
5343 __func__);
5344 if (qla4_84xx_config_acb(ha, ACB_CONFIG_SET) !=
5345 QLA_SUCCESS) {
5346 ql4_printk(KERN_INFO, ha, "%s: ACB config failed ",
5347 __func__);
5348 }
5349 clear_bit(DPC_RESTORE_ACB, &ha->dpc_flags);
5350 }
320a61de 5351
f4f5df23
VC		 5352 if (test_and_clear_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) {
5353 qla4_8xxx_need_qsnt_handler(ha);
5354 }
5355 }
5356
5357 if (!test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) &&
5358 (test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
afaf5a2d 5359 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
f4f5df23 5360 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))) {
6e7b4292 5361 if ((is_qla8022(ha) && ql4xdontresethba) ||
b37ca418
VC		 5362 ((is_qla8032(ha) || is_qla8042(ha)) &&
5363 qla4_83xx_idc_dontreset(ha))) {
f4f5df23
VC		 5364 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n",
5365 ha->host_no, __func__));
5366 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
5367 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags);
5368 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
5369 goto dpc_post_reset_ha;
5370 }
5371 if (test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) ||
5372 test_bit(DPC_RESET_HA, &ha->dpc_flags))
5373 qla4xxx_recover_adapter(ha);
afaf5a2d 5374
477ffb9d 5375 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
afaf5a2d 5376 uint8_t wait_time = RESET_INTR_TOV;
afaf5a2d 5377
afaf5a2d
DS		 5378 while ((readw(&ha->reg->ctrl_status) &
5379 (CSR_SOFT_RESET | CSR_FORCE_SOFT_RESET)) != 0) {
5380 if (--wait_time == 0)
5381 break;
afaf5a2d 5382 msleep(1000);
afaf5a2d 5383 }
afaf5a2d
DS		 5384 if (wait_time == 0)
5385 DEBUG2(printk("scsi%ld: %s: SR|FSR "
5386 "bit not cleared-- resetting\n",
5387 ha->host_no, __func__));
f4f5df23 5388 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
477ffb9d
DS		 5389 if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS) {
5390 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
f4f5df23 5391 status = qla4xxx_recover_adapter(ha);
477ffb9d
DS		 5392 }
5393 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags);
5394 if (status == QLA_SUCCESS)
f4f5df23 5395 ha->isp_ops->enable_intrs(ha);
afaf5a2d
DS		 5396 }
5397 }
5398
f4f5df23 5399dpc_post_reset_ha:
afaf5a2d
DS		 5400 /* ---- process AEN? --- */
5401 if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags))
5402 qla4xxx_process_aen(ha, PROCESS_ALL_AENS);
5403
5404 /* ---- Get DHCP IP Address? --- */
5405 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags))
5406 qla4xxx_get_dhcp_ip_address(ha);
5407
13483730
MC		 5408 /* ---- relogin device? --- */
5409 if (adapter_up(ha) &&
5410 test_and_clear_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags)) {
5411 iscsi_host_for_each_session(ha->host, qla4xxx_dpc_relogin);
5412 }
5413
065aa1b4 5414 /* ---- link change? --- */
026fbd3a
NJ		 5415 if (!test_bit(AF_LOOPBACK, &ha->flags) &&
5416 test_and_clear_bit(DPC_LINK_CHANGED, &ha->dpc_flags)) {
065aa1b4
VC		 5417 if (!test_bit(AF_LINK_UP, &ha->flags)) {
5418 /* ---- link down? --- */
2d7924e6 5419 qla4xxx_mark_all_devices_missing(ha);
065aa1b4
VC		 5420 } else {
5421 /* ---- link up? --- *
5422 * F/W will auto login to all devices ONLY ONCE after
5423 * link up during driver initialization and runtime
5424 * fatal error recovery. Therefore, the driver must
5425 * manually relogin to devices when recovering from
5426 * connection failures, logouts, expired KATO, etc. */
13483730
MC		 5427 if (test_and_clear_bit(AF_BUILD_DDB_LIST, &ha->flags)) {
5428 qla4xxx_build_ddb_list(ha, ha->is_reset);
5429 iscsi_host_for_each_session(ha->host,
5430 qla4xxx_login_flash_ddb);
5431 } else
5432 qla4xxx_relogin_all_devices(ha);
065aa1b4
VC		 5433 }
5434 }
906cbf3d
NJ		 5435 if (test_and_clear_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags)) {
5436 if (qla4xxx_sysfs_ddb_export(ha))
5437 ql4_printk(KERN_ERR, ha, "%s: Error exporting ddb to sysfs\n",
5438 __func__);
5439 }
afaf5a2d
DS		 5440}
5441
5442/**
5443 * qla4xxx_free_adapter - release the adapter
5444 * @ha: pointer to adapter structure
5445 **/
5446static void qla4xxx_free_adapter(struct scsi_qla_host *ha)
5447{
8a288960 5448 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
afaf5a2d 5449
5c19b92a
VC		 5450 /* Turn-off interrupts on the card. */
5451 ha->isp_ops->disable_intrs(ha);
afaf5a2d 5452
d9e62e51
VC		 5453 if (is_qla40XX(ha)) {
5454 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR),
5455 &ha->reg->ctrl_status);
5456 readl(&ha->reg->ctrl_status);
5457 } else if (is_qla8022(ha)) {
7664a1fd
VC		 5458 writel(0, &ha->qla4_82xx_reg->host_int);
5459 readl(&ha->qla4_82xx_reg->host_int);
b37ca418 5460 } else if (is_qla8032(ha) || is_qla8042(ha)) {
fbd8107c
VC		 5461 writel(0, &ha->qla4_83xx_reg->risc_intr);
5462 readl(&ha->qla4_83xx_reg->risc_intr);
d9e62e51
VC		 5463 }
5464
f4f5df23
VC		 5465 /* Remove timer thread, if present */
5466 if (ha->timer_active)
5467 qla4xxx_stop_timer(ha);
5468
afaf5a2d
DS		 5469 /* Kill the kernel thread for this host */
5470 if (ha->dpc_thread)
5471 destroy_workqueue(ha->dpc_thread);
5472
b3a271a9
MR		 5473 /* Kill the kernel thread for this host */
5474 if (ha->task_wq)
5475 destroy_workqueue(ha->task_wq);
5476
f4f5df23
VC		 5477 /* Put firmware in known state */
5478 ha->isp_ops->reset_firmware(ha);
afaf5a2d 5479
6e7b4292 5480 if (is_qla80XX(ha)) {
33693c7a 5481 ha->isp_ops->idc_lock(ha);
f4f5df23 5482 qla4_8xxx_clear_drv_active(ha);
33693c7a 5483 ha->isp_ops->idc_unlock(ha);
f4f5df23 5484 }
afaf5a2d 5485
afaf5a2d 5486 /* Detach interrupts */
5c19b92a 5487 qla4xxx_free_irqs(ha);
afaf5a2d 5488
bee4fe8e
DS		 5489 /* free extra memory */
5490 qla4xxx_mem_free(ha);
f4f5df23
VC		 5491}
5492
5493int qla4_8xxx_iospace_config(struct scsi_qla_host *ha)
5494{
5495 int status = 0;
f4f5df23
VC		 5496 unsigned long mem_base, mem_len, db_base, db_len;
5497 struct pci_dev *pdev = ha->pdev;
5498
5499 status = pci_request_regions(pdev, DRIVER_NAME);
5500 if (status) {
5501 printk(KERN_WARNING
5502 "scsi(%ld) Failed to reserve PIO regions (%s) "
5503 "status=%d\n", ha->host_no, pci_name(pdev), status);
5504 goto iospace_error_exit;
5505 }
5506
f4f5df23 5507 DEBUG2(printk(KERN_INFO "%s: revision-id=%d\n",
7d7311c4
SS		 5508 __func__, pdev->revision));
5509 ha->revision_id = pdev->revision;
bee4fe8e 5510
f4f5df23
VC		 5511 /* remap phys address */
5512 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
5513 mem_len = pci_resource_len(pdev, 0);
5514 DEBUG2(printk(KERN_INFO "%s: ioremap from %lx a size of %lx\n",
5515 __func__, mem_base, mem_len));
afaf5a2d 5516
f4f5df23
VC		 5517 /* mapping of pcibase pointer */
5518 ha->nx_pcibase = (unsigned long)ioremap(mem_base, mem_len);
5519 if (!ha->nx_pcibase) {
5520 printk(KERN_ERR
5521 "cannot remap MMIO (%s), aborting\n", pci_name(pdev));
5522 pci_release_regions(ha->pdev);
5523 goto iospace_error_exit;
5524 }
5525
5526 /* Mapping of IO base pointer, door bell read and write pointer */
5527
5528 /* mapping of IO base pointer */
6e7b4292
VC		 5529 if (is_qla8022(ha)) {
5530 ha->qla4_82xx_reg = (struct device_reg_82xx __iomem *)
5531 ((uint8_t *)ha->nx_pcibase + 0xbc000 +
5532 (ha->pdev->devfn << 11));
5533 ha->nx_db_wr_ptr = (ha->pdev->devfn == 4 ? QLA82XX_CAM_RAM_DB1 :
5534 QLA82XX_CAM_RAM_DB2);
b37ca418 5535 } else if (is_qla8032(ha) || is_qla8042(ha)) {
6e7b4292
VC		 5536 ha->qla4_83xx_reg = (struct device_reg_83xx __iomem *)
5537 ((uint8_t *)ha->nx_pcibase);
5538 }
f4f5df23
VC		 5539
5540 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
5541 db_len = pci_resource_len(pdev, 4);
5542
2657c800 5543 return 0;
f4f5df23
VC		 5544iospace_error_exit:
5545 return -ENOMEM;
afaf5a2d
DS		 5546}
5547
5548/***
5549 * qla4xxx_iospace_config - maps registers
5550 * @ha: pointer to adapter structure
5551 *
5552 * This routines maps HBA's registers from the pci address space
5553 * into the kernel virtual address space for memory mapped i/o.
5554 **/
f4f5df23 5555int qla4xxx_iospace_config(struct scsi_qla_host *ha)
afaf5a2d
DS		 5556{
5557 unsigned long pio, pio_len, pio_flags;
5558 unsigned long mmio, mmio_len, mmio_flags;
5559
5560 pio = pci_resource_start(ha->pdev, 0);
5561 pio_len = pci_resource_len(ha->pdev, 0);
5562 pio_flags = pci_resource_flags(ha->pdev, 0);
5563 if (pio_flags & IORESOURCE_IO) {
5564 if (pio_len < MIN_IOBASE_LEN) {
c2660df3 5565 ql4_printk(KERN_WARNING, ha,
afaf5a2d
DS		 5566 "Invalid PCI I/O region size\n");
5567 pio = 0;
5568 }
5569 } else {
c2660df3 5570 ql4_printk(KERN_WARNING, ha, "region #0 not a PIO resource\n");
afaf5a2d
DS		 5571 pio = 0;
5572 }
5573
5574 /* Use MMIO operations for all accesses. */
5575 mmio = pci_resource_start(ha->pdev, 1);
5576 mmio_len = pci_resource_len(ha->pdev, 1);
5577 mmio_flags = pci_resource_flags(ha->pdev, 1);
5578
5579 if (!(mmio_flags & IORESOURCE_MEM)) {
c2660df3
VC		 5580 ql4_printk(KERN_ERR, ha,
5581 "region #0 not an MMIO resource, aborting\n");
afaf5a2d
DS		 5582
5583 goto iospace_error_exit;
5584 }
c2660df3 5585
afaf5a2d 5586 if (mmio_len < MIN_IOBASE_LEN) {
c2660df3
VC		 5587 ql4_printk(KERN_ERR, ha,
5588 "Invalid PCI mem region size, aborting\n");
afaf5a2d
DS		 5589 goto iospace_error_exit;
5590 }
5591
5592 if (pci_request_regions(ha->pdev, DRIVER_NAME)) {
c2660df3
VC		 5593 ql4_printk(KERN_WARNING, ha,
5594 "Failed to reserve PIO/MMIO regions\n");
afaf5a2d
DS		 5595
5596 goto iospace_error_exit;
5597 }
5598
5599 ha->pio_address = pio;
5600 ha->pio_length = pio_len;
5601 ha->reg = ioremap(mmio, MIN_IOBASE_LEN);
5602 if (!ha->reg) {
c2660df3
VC		 5603 ql4_printk(KERN_ERR, ha,
5604 "cannot remap MMIO, aborting\n");
afaf5a2d
DS		 5605
5606 goto iospace_error_exit;
5607 }
5608
5609 return 0;
5610
5611iospace_error_exit:
5612 return -ENOMEM;
5613}
5614
f4f5df23
VC		 5615static struct isp_operations qla4xxx_isp_ops = {
5616 .iospace_config = qla4xxx_iospace_config,
5617 .pci_config = qla4xxx_pci_config,
5618 .disable_intrs = qla4xxx_disable_intrs,
5619 .enable_intrs = qla4xxx_enable_intrs,
5620 .start_firmware = qla4xxx_start_firmware,
5621 .intr_handler = qla4xxx_intr_handler,
5622 .interrupt_service_routine = qla4xxx_interrupt_service_routine,
5623 .reset_chip = qla4xxx_soft_reset,
5624 .reset_firmware = qla4xxx_hw_reset,
5625 .queue_iocb = qla4xxx_queue_iocb,
5626 .complete_iocb = qla4xxx_complete_iocb,
5627 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out,
5628 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in,
5629 .get_sys_info = qla4xxx_get_sys_info,
33693c7a
VC		 5630 .queue_mailbox_command = qla4xxx_queue_mbox_cmd,
5631 .process_mailbox_interrupt = qla4xxx_process_mbox_intr,
f4f5df23
VC		 5632};
5633
7664a1fd 5634static struct isp_operations qla4_82xx_isp_ops = {
f4f5df23
VC		 5635 .iospace_config = qla4_8xxx_iospace_config,
5636 .pci_config = qla4_8xxx_pci_config,
f8086f4f
VC		 5637 .disable_intrs = qla4_82xx_disable_intrs,
5638 .enable_intrs = qla4_82xx_enable_intrs,
f4f5df23 5639 .start_firmware = qla4_8xxx_load_risc,
33693c7a 5640 .restart_firmware = qla4_82xx_try_start_fw,
f8086f4f
VC		 5641 .intr_handler = qla4_82xx_intr_handler,
5642 .interrupt_service_routine = qla4_82xx_interrupt_service_routine,
33693c7a 5643 .need_reset = qla4_8xxx_need_reset,
f8086f4f 5644 .reset_chip = qla4_82xx_isp_reset,
f4f5df23 5645 .reset_firmware = qla4_8xxx_stop_firmware,
f8086f4f
VC		 5646 .queue_iocb = qla4_82xx_queue_iocb,
5647 .complete_iocb = qla4_82xx_complete_iocb,
5648 .rd_shdw_req_q_out = qla4_82xx_rd_shdw_req_q_out,
5649 .rd_shdw_rsp_q_in = qla4_82xx_rd_shdw_rsp_q_in,
f4f5df23 5650 .get_sys_info = qla4_8xxx_get_sys_info,
33693c7a
VC		 5651 .rd_reg_direct = qla4_82xx_rd_32,
5652 .wr_reg_direct = qla4_82xx_wr_32,
5653 .rd_reg_indirect = qla4_82xx_md_rd_32,
5654 .wr_reg_indirect = qla4_82xx_md_wr_32,
5655 .idc_lock = qla4_82xx_idc_lock,
5656 .idc_unlock = qla4_82xx_idc_unlock,
5657 .rom_lock_recovery = qla4_82xx_rom_lock_recovery,
5658 .queue_mailbox_command = qla4_82xx_queue_mbox_cmd,
5659 .process_mailbox_interrupt = qla4_82xx_process_mbox_intr,
f4f5df23
VC		 5660};
5661
6e7b4292
VC		 5662static struct isp_operations qla4_83xx_isp_ops = {
5663 .iospace_config = qla4_8xxx_iospace_config,
5664 .pci_config = qla4_8xxx_pci_config,
5665 .disable_intrs = qla4_83xx_disable_intrs,
5666 .enable_intrs = qla4_83xx_enable_intrs,
5667 .start_firmware = qla4_8xxx_load_risc,
5668 .restart_firmware = qla4_83xx_start_firmware,
5669 .intr_handler = qla4_83xx_intr_handler,
5670 .interrupt_service_routine = qla4_83xx_interrupt_service_routine,
5671 .need_reset = qla4_8xxx_need_reset,
5672 .reset_chip = qla4_83xx_isp_reset,
5673 .reset_firmware = qla4_8xxx_stop_firmware,
5674 .queue_iocb = qla4_83xx_queue_iocb,
5675 .complete_iocb = qla4_83xx_complete_iocb,
a24058f9
TP		 5676 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out,
5677 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in,
6e7b4292
VC		 5678 .get_sys_info = qla4_8xxx_get_sys_info,
5679 .rd_reg_direct = qla4_83xx_rd_reg,
5680 .wr_reg_direct = qla4_83xx_wr_reg,
5681 .rd_reg_indirect = qla4_83xx_rd_reg_indirect,
5682 .wr_reg_indirect = qla4_83xx_wr_reg_indirect,
5683 .idc_lock = qla4_83xx_drv_lock,
5684 .idc_unlock = qla4_83xx_drv_unlock,
5685 .rom_lock_recovery = qla4_83xx_rom_lock_recovery,
5686 .queue_mailbox_command = qla4_83xx_queue_mbox_cmd,
5687 .process_mailbox_interrupt = qla4_83xx_process_mbox_intr,
f4f5df23
VC		 5688};
5689
5690uint16_t qla4xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha)
5691{
5692 return (uint16_t)le32_to_cpu(ha->shadow_regs->req_q_out);
5693}
5694
f8086f4f 5695uint16_t qla4_82xx_rd_shdw_req_q_out(struct scsi_qla_host *ha)
f4f5df23 5696{
7664a1fd 5697 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->req_q_out));
f4f5df23
VC		 5698}
5699
5700uint16_t qla4xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha)
5701{
5702 return (uint16_t)le32_to_cpu(ha->shadow_regs->rsp_q_in);
5703}
5704
f8086f4f 5705uint16_t qla4_82xx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha)
f4f5df23 5706{
7664a1fd 5707 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->rsp_q_in));
f4f5df23
VC		 5708}
5709
2a991c21
MR		 5710static ssize_t qla4xxx_show_boot_eth_info(void *data, int type, char *buf)
5711{
5712 struct scsi_qla_host *ha = data;
5713 char *str = buf;
5714 int rc;
5715
5716 switch (type) {
5717 case ISCSI_BOOT_ETH_FLAGS:
5718 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT);
5719 break;
5720 case ISCSI_BOOT_ETH_INDEX:
5721 rc = sprintf(str, "0\n");
5722 break;
5723 case ISCSI_BOOT_ETH_MAC:
5724 rc = sysfs_format_mac(str, ha->my_mac,
5725 MAC_ADDR_LEN);
5726 break;
5727 default:
5728 rc = -ENOSYS;
5729 break;
5730 }
5731 return rc;
5732}
5733
587a1f16 5734static umode_t qla4xxx_eth_get_attr_visibility(void *data, int type)
2a991c21
MR		 5735{
5736 int rc;
5737
5738 switch (type) {
5739 case ISCSI_BOOT_ETH_FLAGS:
5740 case ISCSI_BOOT_ETH_MAC:
5741 case ISCSI_BOOT_ETH_INDEX:
5742 rc = S_IRUGO;
5743 break;
5744 default:
5745 rc = 0;
5746 break;
5747 }
5748 return rc;
5749}
5750
5751static ssize_t qla4xxx_show_boot_ini_info(void *data, int type, char *buf)
5752{
5753 struct scsi_qla_host *ha = data;
5754 char *str = buf;
5755 int rc;
5756
5757 switch (type) {
5758 case ISCSI_BOOT_INI_INITIATOR_NAME:
5759 rc = sprintf(str, "%s\n", ha->name_string);
5760 break;
5761 default:
5762 rc = -ENOSYS;
5763 break;
5764 }
5765 return rc;
5766}
5767
587a1f16 5768static umode_t qla4xxx_ini_get_attr_visibility(void *data, int type)
2a991c21
MR		 5769{
5770 int rc;
5771
5772 switch (type) {
5773 case ISCSI_BOOT_INI_INITIATOR_NAME:
5774 rc = S_IRUGO;
5775 break;
5776 default:
5777 rc = 0;
5778 break;
5779 }
5780 return rc;
5781}
5782
5783static ssize_t
5784qla4xxx_show_boot_tgt_info(struct ql4_boot_session_info *boot_sess, int type,
5785 char *buf)
5786{
5787 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0];
5788 char *str = buf;
5789 int rc;
5790
5791 switch (type) {
5792 case ISCSI_BOOT_TGT_NAME:
5793 rc = sprintf(buf, "%s\n", (char *)&boot_sess->target_name);
5794 break;
5795 case ISCSI_BOOT_TGT_IP_ADDR:
5796 if (boot_sess->conn_list[0].dest_ipaddr.ip_type == 0x1)
5797 rc = sprintf(buf, "%pI4\n",
5798 &boot_conn->dest_ipaddr.ip_address);
5799 else
5800 rc = sprintf(str, "%pI6\n",
5801 &boot_conn->dest_ipaddr.ip_address);
5802 break;
5803 case ISCSI_BOOT_TGT_PORT:
5804 rc = sprintf(str, "%d\n", boot_conn->dest_port);
5805 break;
5806 case ISCSI_BOOT_TGT_CHAP_NAME:
5807 rc = sprintf(str, "%.*s\n",
5808 boot_conn->chap.target_chap_name_length,
5809 (char *)&boot_conn->chap.target_chap_name);
5810 break;
5811 case ISCSI_BOOT_TGT_CHAP_SECRET:
5812 rc = sprintf(str, "%.*s\n",
5813 boot_conn->chap.target_secret_length,
5814 (char *)&boot_conn->chap.target_secret);
5815 break;
5816 case ISCSI_BOOT_TGT_REV_CHAP_NAME:
5817 rc = sprintf(str, "%.*s\n",
5818 boot_conn->chap.intr_chap_name_length,
5819 (char *)&boot_conn->chap.intr_chap_name);
5820 break;
5821 case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
5822 rc = sprintf(str, "%.*s\n",
5823 boot_conn->chap.intr_secret_length,
5824 (char *)&boot_conn->chap.intr_secret);
5825 break;
5826 case ISCSI_BOOT_TGT_FLAGS:
5827 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT);
5828 break;
5829 case ISCSI_BOOT_TGT_NIC_ASSOC:
5830 rc = sprintf(str, "0\n");
5831 break;
5832 default:
5833 rc = -ENOSYS;
5834 break;
5835 }
5836 return rc;
5837}
5838
5839static ssize_t qla4xxx_show_boot_tgt_pri_info(void *data, int type, char *buf)
5840{
5841 struct scsi_qla_host *ha = data;
5842 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_pri_sess);
5843
5844 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf);
5845}
5846
5847static ssize_t qla4xxx_show_boot_tgt_sec_info(void *data, int type, char *buf)
5848{
5849 struct scsi_qla_host *ha = data;
5850 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_sec_sess);
5851
5852 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf);
5853}
5854
587a1f16 5855static umode_t qla4xxx_tgt_get_attr_visibility(void *data, int type)
2a991c21
MR		 5856{
5857 int rc;
5858
5859 switch (type) {
5860 case ISCSI_BOOT_TGT_NAME:
5861 case ISCSI_BOOT_TGT_IP_ADDR:
5862 case ISCSI_BOOT_TGT_PORT:
5863 case ISCSI_BOOT_TGT_CHAP_NAME:
5864 case ISCSI_BOOT_TGT_CHAP_SECRET:
5865 case ISCSI_BOOT_TGT_REV_CHAP_NAME:
5866 case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
5867 case ISCSI_BOOT_TGT_NIC_ASSOC:
5868 case ISCSI_BOOT_TGT_FLAGS:
5869 rc = S_IRUGO;
5870 break;
5871 default:
5872 rc = 0;
5873 break;
5874 }
5875 return rc;
5876}
5877
5878static void qla4xxx_boot_release(void *data)
5879{
5880 struct scsi_qla_host *ha = data;
5881
5882 scsi_host_put(ha->host);
5883}
5884
5885static int get_fw_boot_info(struct scsi_qla_host *ha, uint16_t ddb_index[])
5886{
5887 dma_addr_t buf_dma;
5888 uint32_t addr, pri_addr, sec_addr;
5889 uint32_t offset;
5890 uint16_t func_num;
5891 uint8_t val;
5892 uint8_t *buf = NULL;
5893 size_t size = 13 * sizeof(uint8_t);
5894 int ret = QLA_SUCCESS;
5895
5896 func_num = PCI_FUNC(ha->pdev->devfn);
5897
0d5b36b8
MR		 5898 ql4_printk(KERN_INFO, ha, "%s: Get FW boot info for 0x%x func %d\n",
5899 __func__, ha->pdev->device, func_num);
2a991c21 5900
0d5b36b8 5901 if (is_qla40XX(ha)) {
2a991c21
MR		 5902 if (func_num == 1) {
5903 addr = NVRAM_PORT0_BOOT_MODE;
5904 pri_addr = NVRAM_PORT0_BOOT_PRI_TGT;
5905 sec_addr = NVRAM_PORT0_BOOT_SEC_TGT;
5906 } else if (func_num == 3) {
5907 addr = NVRAM_PORT1_BOOT_MODE;
5908 pri_addr = NVRAM_PORT1_BOOT_PRI_TGT;
5909 sec_addr = NVRAM_PORT1_BOOT_SEC_TGT;
5910 } else {
5911 ret = QLA_ERROR;
5912 goto exit_boot_info;
5913 }
5914
5915 /* Check Boot Mode */
5916 val = rd_nvram_byte(ha, addr);
5917 if (!(val & 0x07)) {
e8fb00e0
MR		 5918 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Adapter boot "
5919 "options : 0x%x\n", __func__, val));
2a991c21
MR		 5920 ret = QLA_ERROR;
5921 goto exit_boot_info;
5922 }
5923
5924 /* get primary valid target index */
5925 val = rd_nvram_byte(ha, pri_addr);
5926 if (val & BIT_7)
5927 ddb_index[0] = (val & 0x7f);
2a991c21
MR		 5928
5929 /* get secondary valid target index */
5930 val = rd_nvram_byte(ha, sec_addr);
5931 if (val & BIT_7)
5932 ddb_index[1] = (val & 0x7f);
608f729c 5933 goto exit_boot_info;
3e788fb1 5934 } else if (is_qla80XX(ha)) {
2a991c21
MR		 5935 buf = dma_alloc_coherent(&ha->pdev->dev, size,
5936 &buf_dma, GFP_KERNEL);
5937 if (!buf) {
5938 DEBUG2(ql4_printk(KERN_ERR, ha,
5939 "%s: Unable to allocate dma buffer\n",
5940 __func__));
5941 ret = QLA_ERROR;
5942 goto exit_boot_info;
5943 }
5944
5945 if (ha->port_num == 0)
5946 offset = BOOT_PARAM_OFFSET_PORT0;
5947 else if (ha->port_num == 1)
5948 offset = BOOT_PARAM_OFFSET_PORT1;
5949 else {
5950 ret = QLA_ERROR;
5951 goto exit_boot_info_free;
5952 }
5953 addr = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_iscsi_param * 4) +
5954 offset;
5955 if (qla4xxx_get_flash(ha, buf_dma, addr,
5956 13 * sizeof(uint8_t)) != QLA_SUCCESS) {
5957 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: Get Flash"
0bd7f842 5958 " failed\n", ha->host_no, __func__));
2a991c21
MR		 5959 ret = QLA_ERROR;
5960 goto exit_boot_info_free;
5961 }
5962 /* Check Boot Mode */
5963 if (!(buf[1] & 0x07)) {
e8fb00e0
MR		 5964 DEBUG2(ql4_printk(KERN_INFO, ha, "Firmware boot options"
5965 " : 0x%x\n", buf[1]));
2a991c21
MR		 5966 ret = QLA_ERROR;
5967 goto exit_boot_info_free;
5968 }
5969
5970 /* get primary valid target index */
5971 if (buf[2] & BIT_7)
5972 ddb_index[0] = buf[2] & 0x7f;
2a991c21
MR		 5973
5974 /* get secondary valid target index */
5975 if (buf[11] & BIT_7)
5976 ddb_index[1] = buf[11] & 0x7f;
2a991c21
MR		 5977 } else {
5978 ret = QLA_ERROR;
5979 goto exit_boot_info;
5980 }
5981
5982 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary target ID %d, Secondary"
5983 " target ID %d\n", __func__, ddb_index[0],
5984 ddb_index[1]));
5985
5986exit_boot_info_free:
5987 dma_free_coherent(&ha->pdev->dev, size, buf, buf_dma);
5988exit_boot_info:
20e835b4
LC		 5989 ha->pri_ddb_idx = ddb_index[0];
5990 ha->sec_ddb_idx = ddb_index[1];
2a991c21
MR		 5991 return ret;
5992}
5993
28deb45c
LC		 5994/**
5995 * qla4xxx_get_bidi_chap - Get a BIDI CHAP user and password
5996 * @ha: pointer to adapter structure
5997 * @username: CHAP username to be returned
5998 * @password: CHAP password to be returned
5999 *
6000 * If a boot entry has BIDI CHAP enabled then we need to set the BIDI CHAP
6001 * user and password in the sysfs entry in /sys/firmware/iscsi_boot#/.
6002 * So from the CHAP cache find the first BIDI CHAP entry and set it
6003 * to the boot record in sysfs.
6004 **/
6005static int qla4xxx_get_bidi_chap(struct scsi_qla_host *ha, char *username,
6006 char *password)
6007{
6008 int i, ret = -EINVAL;
6009 int max_chap_entries = 0;
6010 struct ql4_chap_table *chap_table;
6011
d11b0ca3 6012 if (is_qla80XX(ha))
28deb45c
LC		 6013 max_chap_entries = (ha->hw.flt_chap_size / 2) /
6014 sizeof(struct ql4_chap_table);
6015 else
6016 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
6017
6018 if (!ha->chap_list) {
6019 ql4_printk(KERN_ERR, ha, "Do not have CHAP table cache\n");
6020 return ret;
6021 }
6022
6023 mutex_lock(&ha->chap_sem);
6024 for (i = 0; i < max_chap_entries; i++) {
6025 chap_table = (struct ql4_chap_table *)ha->chap_list + i;
6026 if (chap_table->cookie !=
6027 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) {
6028 continue;
6029 }
6030
6031 if (chap_table->flags & BIT_7) /* local */
6032 continue;
6033
6034 if (!(chap_table->flags & BIT_6)) /* Not BIDI */
6035 continue;
6036
bdbb9662
RS		 6037 strlcpy(password, chap_table->secret, QL4_CHAP_MAX_SECRET_LEN);
6038 strlcpy(username, chap_table->name, QL4_CHAP_MAX_NAME_LEN);
28deb45c
LC		 6039 ret = 0;
6040 break;
6041 }
6042 mutex_unlock(&ha->chap_sem);
6043
6044 return ret;
6045}
6046
6047
2a991c21
MR		 6048static int qla4xxx_get_boot_target(struct scsi_qla_host *ha,
6049 struct ql4_boot_session_info *boot_sess,
6050 uint16_t ddb_index)
6051{
6052 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0];
6053 struct dev_db_entry *fw_ddb_entry;
6054 dma_addr_t fw_ddb_entry_dma;
6055 uint16_t idx;
6056 uint16_t options;
6057 int ret = QLA_SUCCESS;
6058
6059 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
6060 &fw_ddb_entry_dma, GFP_KERNEL);
6061 if (!fw_ddb_entry) {
6062 DEBUG2(ql4_printk(KERN_ERR, ha,
6063 "%s: Unable to allocate dma buffer.\n",
6064 __func__));
6065 ret = QLA_ERROR;
6066 return ret;
6067 }
6068
6069 if (qla4xxx_bootdb_by_index(ha, fw_ddb_entry,
6070 fw_ddb_entry_dma, ddb_index)) {
e8fb00e0
MR		 6071 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: No Flash DDB found at "
6072 "index [%d]\n", __func__, ddb_index));
2a991c21
MR		 6073 ret = QLA_ERROR;
6074 goto exit_boot_target;
6075 }
6076
6077 /* Update target name and IP from DDB */
6078 memcpy(boot_sess->target_name, fw_ddb_entry->iscsi_name,
6079 min(sizeof(boot_sess->target_name),
6080 sizeof(fw_ddb_entry->iscsi_name)));
6081
6082 options = le16_to_cpu(fw_ddb_entry->options);
6083 if (options & DDB_OPT_IPV6_DEVICE) {
6084 memcpy(&boot_conn->dest_ipaddr.ip_address,
6085 &fw_ddb_entry->ip_addr[0], IPv6_ADDR_LEN);
6086 } else {
6087 boot_conn->dest_ipaddr.ip_type = 0x1;
6088 memcpy(&boot_conn->dest_ipaddr.ip_address,
6089 &fw_ddb_entry->ip_addr[0], IP_ADDR_LEN);
6090 }
6091
6092 boot_conn->dest_port = le16_to_cpu(fw_ddb_entry->port);
6093
6094 /* update chap information */
6095 idx = __le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
6096
6097 if (BIT_7 & le16_to_cpu(fw_ddb_entry->iscsi_options)) {
6098
6099 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting chap\n"));
6100
6101 ret = qla4xxx_get_chap(ha, (char *)&boot_conn->chap.
6102 target_chap_name,
6103 (char *)&boot_conn->chap.target_secret,
6104 idx);
6105 if (ret) {
6106 ql4_printk(KERN_ERR, ha, "Failed to set chap\n");
6107 ret = QLA_ERROR;
6108 goto exit_boot_target;
6109 }
6110
6111 boot_conn->chap.target_chap_name_length = QL4_CHAP_MAX_NAME_LEN;
6112 boot_conn->chap.target_secret_length = QL4_CHAP_MAX_SECRET_LEN;
6113 }
6114
6115 if (BIT_4 & le16_to_cpu(fw_ddb_entry->iscsi_options)) {
6116
6117 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting BIDI chap\n"));
6118
28deb45c
LC		 6119 ret = qla4xxx_get_bidi_chap(ha,
6120 (char *)&boot_conn->chap.intr_chap_name,
6121 (char *)&boot_conn->chap.intr_secret);
6122
2a991c21
MR		 6123 if (ret) {
6124 ql4_printk(KERN_ERR, ha, "Failed to set BIDI chap\n");
6125 ret = QLA_ERROR;
6126 goto exit_boot_target;
6127 }
6128
6129 boot_conn->chap.intr_chap_name_length = QL4_CHAP_MAX_NAME_LEN;
6130 boot_conn->chap.intr_secret_length = QL4_CHAP_MAX_SECRET_LEN;
6131 }
6132
6133exit_boot_target:
6134 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
6135 fw_ddb_entry, fw_ddb_entry_dma);
6136 return ret;
6137}
6138
6139static int qla4xxx_get_boot_info(struct scsi_qla_host *ha)
6140{
6141 uint16_t ddb_index[2];
8de5b958
LC		 6142 int ret = QLA_ERROR;
6143 int rval;
2a991c21
MR		 6144
6145 memset(ddb_index, 0, sizeof(ddb_index));
8de5b958
LC		 6146 ddb_index[0] = 0xffff;
6147 ddb_index[1] = 0xffff;
2a991c21
MR		 6148 ret = get_fw_boot_info(ha, ddb_index);
6149 if (ret != QLA_SUCCESS) {
e8fb00e0
MR		 6150 DEBUG2(ql4_printk(KERN_INFO, ha,
6151 "%s: No boot target configured.\n", __func__));
2a991c21
MR		 6152 return ret;
6153 }
6154
13483730
MC		 6155 if (ql4xdisablesysfsboot)
6156 return QLA_SUCCESS;
6157
8de5b958
LC		 6158 if (ddb_index[0] == 0xffff)
6159 goto sec_target;
6160
6161 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_pri_sess),
2a991c21 6162 ddb_index[0]);
8de5b958 6163 if (rval != QLA_SUCCESS) {
e8fb00e0
MR		 6164 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary boot target not "
6165 "configured\n", __func__));
8de5b958
LC		 6166 } else
6167 ret = QLA_SUCCESS;
2a991c21 6168
8de5b958
LC		 6169sec_target:
6170 if (ddb_index[1] == 0xffff)
6171 goto exit_get_boot_info;
6172
6173 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_sec_sess),
2a991c21 6174 ddb_index[1]);
8de5b958 6175 if (rval != QLA_SUCCESS) {
e8fb00e0
MR		 6176 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Secondary boot target not"
6177 " configured\n", __func__));
8de5b958
LC		 6178 } else
6179 ret = QLA_SUCCESS;
6180
6181exit_get_boot_info:
2a991c21
MR		 6182 return ret;
6183}
6184
6185static int qla4xxx_setup_boot_info(struct scsi_qla_host *ha)
6186{
6187 struct iscsi_boot_kobj *boot_kobj;
6188
6189 if (qla4xxx_get_boot_info(ha) != QLA_SUCCESS)
13483730
MC		 6190 return QLA_ERROR;
6191
6192 if (ql4xdisablesysfsboot) {
6193 ql4_printk(KERN_INFO, ha,
0bd7f842 6194 "%s: syfsboot disabled - driver will trigger login "
13483730
MC		 6195 "and publish session for discovery .\n", __func__);
6196 return QLA_SUCCESS;
6197 }
6198
2a991c21
MR		 6199
6200 ha->boot_kset = iscsi_boot_create_host_kset(ha->host->host_no);
6201 if (!ha->boot_kset)
6202 goto kset_free;
6203
6204 if (!scsi_host_get(ha->host))
6205 goto kset_free;
6206 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 0, ha,
6207 qla4xxx_show_boot_tgt_pri_info,
6208 qla4xxx_tgt_get_attr_visibility,
6209 qla4xxx_boot_release);
6210 if (!boot_kobj)
6211 goto put_host;
6212
6213 if (!scsi_host_get(ha->host))
6214 goto kset_free;
6215 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 1, ha,
6216 qla4xxx_show_boot_tgt_sec_info,
6217 qla4xxx_tgt_get_attr_visibility,
6218 qla4xxx_boot_release);
6219 if (!boot_kobj)
6220 goto put_host;
6221
6222 if (!scsi_host_get(ha->host))
6223 goto kset_free;
6224 boot_kobj = iscsi_boot_create_initiator(ha->boot_kset, 0, ha,
6225 qla4xxx_show_boot_ini_info,
6226 qla4xxx_ini_get_attr_visibility,
6227 qla4xxx_boot_release);
6228 if (!boot_kobj)
6229 goto put_host;
6230
6231 if (!scsi_host_get(ha->host))
6232 goto kset_free;
6233 boot_kobj = iscsi_boot_create_ethernet(ha->boot_kset, 0, ha,
6234 qla4xxx_show_boot_eth_info,
6235 qla4xxx_eth_get_attr_visibility,
6236 qla4xxx_boot_release);
6237 if (!boot_kobj)
6238 goto put_host;
6239
13483730 6240 return QLA_SUCCESS;
2a991c21
MR		 6241
6242put_host:
6243 scsi_host_put(ha->host);
6244kset_free:
6245 iscsi_boot_destroy_kset(ha->boot_kset);
6246 return -ENOMEM;
6247}
6248
4549415a 6249
13483730
MC		 6250static void qla4xxx_get_param_ddb(struct ddb_entry *ddb_entry,
6251 struct ql4_tuple_ddb *tddb)
6252{
6253 struct scsi_qla_host *ha;
6254 struct iscsi_cls_session *cls_sess;
6255 struct iscsi_cls_conn *cls_conn;
6256 struct iscsi_session *sess;
6257 struct iscsi_conn *conn;
6258
6259 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
6260 ha = ddb_entry->ha;
6261 cls_sess = ddb_entry->sess;
6262 sess = cls_sess->dd_data;
6263 cls_conn = ddb_entry->conn;
6264 conn = cls_conn->dd_data;
6265
6266 tddb->tpgt = sess->tpgt;
6267 tddb->port = conn->persistent_port;
bdbb9662
RS		 6268 strlcpy(tddb->iscsi_name, sess->targetname, ISCSI_NAME_SIZE);
6269 strlcpy(tddb->ip_addr, conn->persistent_address, DDB_IPADDR_LEN);
13483730
MC		 6270}
6271
6272static void qla4xxx_convert_param_ddb(struct dev_db_entry *fw_ddb_entry,
1cb78d73
VC		 6273 struct ql4_tuple_ddb *tddb,
6274 uint8_t *flash_isid)
13483730
MC		 6275{
6276 uint16_t options = 0;
6277
6278 tddb->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
6279 memcpy(&tddb->iscsi_name[0], &fw_ddb_entry->iscsi_name[0],
6280 min(sizeof(tddb->iscsi_name), sizeof(fw_ddb_entry->iscsi_name)));
6281
6282 options = le16_to_cpu(fw_ddb_entry->options);
6283 if (options & DDB_OPT_IPV6_DEVICE)
6284 sprintf(tddb->ip_addr, "%pI6", fw_ddb_entry->ip_addr);
6285 else
6286 sprintf(tddb->ip_addr, "%pI4", fw_ddb_entry->ip_addr);
6287
6288 tddb->port = le16_to_cpu(fw_ddb_entry->port);
1cb78d73
VC		 6289
6290 if (flash_isid == NULL)
6291 memcpy(&tddb->isid[0], &fw_ddb_entry->isid[0],
6292 sizeof(tddb->isid));
6293 else
6294 memcpy(&tddb->isid[0], &flash_isid[0], sizeof(tddb->isid));
13483730
MC		 6295}
6296
6297static int qla4xxx_compare_tuple_ddb(struct scsi_qla_host *ha,
6298 struct ql4_tuple_ddb *old_tddb,
173269ef
MR		 6299 struct ql4_tuple_ddb *new_tddb,
6300 uint8_t is_isid_compare)
13483730
MC		 6301{
6302 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name))
6303 return QLA_ERROR;
6304
6305 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr))
6306 return QLA_ERROR;
6307
6308 if (old_tddb->port != new_tddb->port)
6309 return QLA_ERROR;
6310
173269ef 6311 /* For multi sessions, driver generates the ISID, so do not compare
59e13d48 6312 * ISID in reset path since it would be a comparison between the
173269ef
MR		 6313 * driver generated ISID and firmware generated ISID. This could
6314 * lead to adding duplicated DDBs in the list as driver generated
6315 * ISID would not match firmware generated ISID.
6316 */
6317 if (is_isid_compare) {
d1d81bd0
OK		 6318 DEBUG2(ql4_printk(KERN_INFO, ha,
6319 "%s: old ISID [%pmR] New ISID [%pmR]\n",
6320 __func__, old_tddb->isid, new_tddb->isid));
173269ef
MR		 6321
6322 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0],
6323 sizeof(old_tddb->isid)))
6324 return QLA_ERROR;
6325 }
6326
13483730
MC		 6327 DEBUG2(ql4_printk(KERN_INFO, ha,
6328 "Match Found, fw[%d,%d,%s,%s], [%d,%d,%s,%s]",
6329 old_tddb->port, old_tddb->tpgt, old_tddb->ip_addr,
6330 old_tddb->iscsi_name, new_tddb->port, new_tddb->tpgt,
6331 new_tddb->ip_addr, new_tddb->iscsi_name));
6332
6333 return QLA_SUCCESS;
6334}
6335
6336static int qla4xxx_is_session_exists(struct scsi_qla_host *ha,
ad8bd45e
MR		 6337 struct dev_db_entry *fw_ddb_entry,
6338 uint32_t *index)
13483730
MC		 6339{
6340 struct ddb_entry *ddb_entry;
6341 struct ql4_tuple_ddb *fw_tddb = NULL;
6342 struct ql4_tuple_ddb *tmp_tddb = NULL;
6343 int idx;
6344 int ret = QLA_ERROR;
6345
6346 fw_tddb = vzalloc(sizeof(*fw_tddb));
6347 if (!fw_tddb) {
6348 DEBUG2(ql4_printk(KERN_WARNING, ha,
6349 "Memory Allocation failed.\n"));
6350 ret = QLA_SUCCESS;
6351 goto exit_check;
6352 }
6353
6354 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
6355 if (!tmp_tddb) {
6356 DEBUG2(ql4_printk(KERN_WARNING, ha,
6357 "Memory Allocation failed.\n"));
6358 ret = QLA_SUCCESS;
6359 goto exit_check;
6360 }
6361
1cb78d73 6362 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL);
13483730
MC		 6363
6364 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
6365 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
6366 if (ddb_entry == NULL)
6367 continue;
6368
6369 qla4xxx_get_param_ddb(ddb_entry, tmp_tddb);
173269ef 6370 if (!qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, false)) {
13483730 6371 ret = QLA_SUCCESS; /* found */
ad8bd45e
MR		 6372 if (index != NULL)
6373 *index = idx;
13483730
MC		 6374 goto exit_check;
6375 }
6376 }
6377
6378exit_check:
6379 if (fw_tddb)
6380 vfree(fw_tddb);
6381 if (tmp_tddb)
6382 vfree(tmp_tddb);
6383 return ret;
6384}
6385
1cb78d73
VC		 6386/**
6387 * qla4xxx_check_existing_isid - check if target with same isid exist
6388 * in target list
6389 * @list_nt: list of target
6390 * @isid: isid to check
6391 *
6392 * This routine return QLA_SUCCESS if target with same isid exist
6393 **/
6394static int qla4xxx_check_existing_isid(struct list_head *list_nt, uint8_t *isid)
6395{
6396 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp;
6397 struct dev_db_entry *fw_ddb_entry;
6398
6399 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
6400 fw_ddb_entry = &nt_ddb_idx->fw_ddb;
6401
6402 if (memcmp(&fw_ddb_entry->isid[0], &isid[0],
6403 sizeof(nt_ddb_idx->fw_ddb.isid)) == 0) {
6404 return QLA_SUCCESS;
6405 }
6406 }
6407 return QLA_ERROR;
6408}
6409
6410/**
6411 * qla4xxx_update_isid - compare ddbs and updated isid
6412 * @ha: Pointer to host adapter structure.
6413 * @list_nt: list of nt target
6414 * @fw_ddb_entry: firmware ddb entry
6415 *
6416 * This routine update isid if ddbs have same iqn, same isid and
6417 * different IP addr.
6418 * Return QLA_SUCCESS if isid is updated.
6419 **/
6420static int qla4xxx_update_isid(struct scsi_qla_host *ha,
6421 struct list_head *list_nt,
6422 struct dev_db_entry *fw_ddb_entry)
6423{
6424 uint8_t base_value, i;
6425
6426 base_value = fw_ddb_entry->isid[1] & 0x1f;
6427 for (i = 0; i < 8; i++) {
6428 fw_ddb_entry->isid[1] = (base_value | (i << 5));
6429 if (qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid))
6430 break;
6431 }
6432
6433 if (!qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid))
6434 return QLA_ERROR;
6435
6436 return QLA_SUCCESS;
6437}
6438
6439/**
6440 * qla4xxx_should_update_isid - check if isid need to update
6441 * @ha: Pointer to host adapter structure.
6442 * @old_tddb: ddb tuple
6443 * @new_tddb: ddb tuple
6444 *
6445 * Return QLA_SUCCESS if different IP, different PORT, same iqn,
6446 * same isid
6447 **/
6448static int qla4xxx_should_update_isid(struct scsi_qla_host *ha,
6449 struct ql4_tuple_ddb *old_tddb,
6450 struct ql4_tuple_ddb *new_tddb)
6451{
6452 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr) == 0) {
6453 /* Same ip */
6454 if (old_tddb->port == new_tddb->port)
6455 return QLA_ERROR;
6456 }
6457
6458 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name))
6459 /* different iqn */
6460 return QLA_ERROR;
6461
6462 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0],
6463 sizeof(old_tddb->isid)))
6464 /* different isid */
6465 return QLA_ERROR;
6466
6467 return QLA_SUCCESS;
6468}
6469
6470/**
6471 * qla4xxx_is_flash_ddb_exists - check if fw_ddb_entry already exists in list_nt
6472 * @ha: Pointer to host adapter structure.
6473 * @list_nt: list of nt target.
6474 * @fw_ddb_entry: firmware ddb entry.
6475 *
6476 * This routine check if fw_ddb_entry already exists in list_nt to avoid
6477 * duplicate ddb in list_nt.
6478 * Return QLA_SUCCESS if duplicate ddb exit in list_nl.
6479 * Note: This function also update isid of DDB if required.
6480 **/
6481
13483730
MC		 6482static int qla4xxx_is_flash_ddb_exists(struct scsi_qla_host *ha,
6483 struct list_head *list_nt,
6484 struct dev_db_entry *fw_ddb_entry)
6485{
6486 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp;
6487 struct ql4_tuple_ddb *fw_tddb = NULL;
6488 struct ql4_tuple_ddb *tmp_tddb = NULL;
1cb78d73 6489 int rval, ret = QLA_ERROR;
13483730
MC		 6490
6491 fw_tddb = vzalloc(sizeof(*fw_tddb));
6492 if (!fw_tddb) {
6493 DEBUG2(ql4_printk(KERN_WARNING, ha,
6494 "Memory Allocation failed.\n"));
6495 ret = QLA_SUCCESS;
6496 goto exit_check;
6497 }
6498
6499 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
6500 if (!tmp_tddb) {
6501 DEBUG2(ql4_printk(KERN_WARNING, ha,
6502 "Memory Allocation failed.\n"));
6503 ret = QLA_SUCCESS;
6504 goto exit_check;
6505 }
6506
1cb78d73 6507 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL);
13483730
MC		 6508
6509 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
1cb78d73
VC		 6510 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb,
6511 nt_ddb_idx->flash_isid);
6512 ret = qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, true);
6513 /* found duplicate ddb */
6514 if (ret == QLA_SUCCESS)
6515 goto exit_check;
6516 }
6517
6518 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
6519 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb, NULL);
6520
6521 ret = qla4xxx_should_update_isid(ha, tmp_tddb, fw_tddb);
6522 if (ret == QLA_SUCCESS) {
6523 rval = qla4xxx_update_isid(ha, list_nt, fw_ddb_entry);
6524 if (rval == QLA_SUCCESS)
6525 ret = QLA_ERROR;
6526 else
6527 ret = QLA_SUCCESS;
6528
13483730
MC		 6529 goto exit_check;
6530 }
6531 }
6532
6533exit_check:
6534 if (fw_tddb)
6535 vfree(fw_tddb);
6536 if (tmp_tddb)
6537 vfree(tmp_tddb);
6538 return ret;
6539}
6540
4a4bc2e9 6541static void qla4xxx_free_ddb_list(struct list_head *list_ddb)
13483730 6542{
4a4bc2e9 6543 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
13483730 6544
4a4bc2e9
LC		 6545 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
6546 list_del_init(&ddb_idx->list);
6547 vfree(ddb_idx);
13483730 6548 }
13483730
MC		 6549}
6550
6551static struct iscsi_endpoint *qla4xxx_get_ep_fwdb(struct scsi_qla_host *ha,
6552 struct dev_db_entry *fw_ddb_entry)
6553{
6554 struct iscsi_endpoint *ep;
6555 struct sockaddr_in *addr;
6556 struct sockaddr_in6 *addr6;
3dd4849c
MR		 6557 struct sockaddr *t_addr;
6558 struct sockaddr_storage *dst_addr;
13483730
MC		 6559 char *ip;
6560
6561 /* TODO: need to destroy on unload iscsi_endpoint*/
6562 dst_addr = vmalloc(sizeof(*dst_addr));
6563 if (!dst_addr)
6564 return NULL;
6565
6566 if (fw_ddb_entry->options & DDB_OPT_IPV6_DEVICE) {
3dd4849c
MR		 6567 t_addr = (struct sockaddr *)dst_addr;
6568 t_addr->sa_family = AF_INET6;
13483730
MC		 6569 addr6 = (struct sockaddr_in6 *)dst_addr;
6570 ip = (char *)&addr6->sin6_addr;
6571 memcpy(ip, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN);
6572 addr6->sin6_port = htons(le16_to_cpu(fw_ddb_entry->port));
6573
6574 } else {
3dd4849c
MR		 6575 t_addr = (struct sockaddr *)dst_addr;
6576 t_addr->sa_family = AF_INET;
13483730
MC		 6577 addr = (struct sockaddr_in *)dst_addr;
6578 ip = (char *)&addr->sin_addr;
6579 memcpy(ip, fw_ddb_entry->ip_addr, IP_ADDR_LEN);
6580 addr->sin_port = htons(le16_to_cpu(fw_ddb_entry->port));
6581 }
6582
3dd4849c 6583 ep = qla4xxx_ep_connect(ha->host, (struct sockaddr *)dst_addr, 0);
13483730
MC		 6584 vfree(dst_addr);
6585 return ep;
6586}
6587
6588static int qla4xxx_verify_boot_idx(struct scsi_qla_host *ha, uint16_t idx)
6589{
6590 if (ql4xdisablesysfsboot)
6591 return QLA_SUCCESS;
6592 if (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx)
6593 return QLA_ERROR;
6594 return QLA_SUCCESS;
6595}
6596
6597static void qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha,
1dc8ed5d
MR		 6598 struct ddb_entry *ddb_entry,
6599 uint16_t idx)
13483730 6600{
c28eaaca
NJ		 6601 uint16_t def_timeout;
6602
13483730
MC		 6603 ddb_entry->ddb_type = FLASH_DDB;
6604 ddb_entry->fw_ddb_index = INVALID_ENTRY;
6605 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE;
6606 ddb_entry->ha = ha;
6607 ddb_entry->unblock_sess = qla4xxx_unblock_flash_ddb;
6608 ddb_entry->ddb_change = qla4xxx_flash_ddb_change;
946ac571 6609 ddb_entry->chap_tbl_idx = INVALID_ENTRY;
13483730
MC		 6610
6611 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY);
6612 atomic_set(&ddb_entry->relogin_timer, 0);
6613 atomic_set(&ddb_entry->relogin_retry_count, 0);
c28eaaca 6614 def_timeout = le16_to_cpu(ddb_entry->fw_ddb_entry.def_timeout);
13483730 6615 ddb_entry->default_relogin_timeout =
c28eaaca
NJ		 6616 (def_timeout > LOGIN_TOV) && (def_timeout < LOGIN_TOV * 10) ?
6617 def_timeout : LOGIN_TOV;
13483730
MC		 6618 ddb_entry->default_time2wait =
6619 le16_to_cpu(ddb_entry->fw_ddb_entry.iscsi_def_time2wait);
1dc8ed5d
MR		 6620
6621 if (ql4xdisablesysfsboot &&
6622 (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx))
6623 set_bit(DF_BOOT_TGT, &ddb_entry->flags);
13483730
MC		 6624}
6625
6626static void qla4xxx_wait_for_ip_configuration(struct scsi_qla_host *ha)
6627{
6628 uint32_t idx = 0;
6629 uint32_t ip_idx[IP_ADDR_COUNT] = {0, 1, 2, 3}; /* 4 IP interfaces */
6630 uint32_t sts[MBOX_REG_COUNT];
6631 uint32_t ip_state;
6632 unsigned long wtime;
6633 int ret;
6634
6635 wtime = jiffies + (HZ * IP_CONFIG_TOV);
6636 do {
6637 for (idx = 0; idx < IP_ADDR_COUNT; idx++) {
6638 if (ip_idx[idx] == -1)
6639 continue;
6640
6641 ret = qla4xxx_get_ip_state(ha, 0, ip_idx[idx], sts);
6642
6643 if (ret == QLA_ERROR) {
6644 ip_idx[idx] = -1;
6645 continue;
6646 }
6647
6648 ip_state = (sts[1] & IP_STATE_MASK) >> IP_STATE_SHIFT;
6649
6650 DEBUG2(ql4_printk(KERN_INFO, ha,
6651 "Waiting for IP state for idx = %d, state = 0x%x\n",
6652 ip_idx[idx], ip_state));
6653 if (ip_state == IP_ADDRSTATE_UNCONFIGURED ||
6654 ip_state == IP_ADDRSTATE_INVALID ||
6655 ip_state == IP_ADDRSTATE_PREFERRED ||
6656 ip_state == IP_ADDRSTATE_DEPRICATED ||
6657 ip_state == IP_ADDRSTATE_DISABLING)
6658 ip_idx[idx] = -1;
13483730
MC		 6659 }
6660
6661 /* Break if all IP states checked */
6662 if ((ip_idx[0] == -1) &&
6663 (ip_idx[1] == -1) &&
6664 (ip_idx[2] == -1) &&
6665 (ip_idx[3] == -1))
6666 break;
6667 schedule_timeout_uninterruptible(HZ);
6668 } while (time_after(wtime, jiffies));
6669}
6670
ad8bd45e
MR		 6671static int qla4xxx_cmp_fw_stentry(struct dev_db_entry *fw_ddb_entry,
6672 struct dev_db_entry *flash_ddb_entry)
6673{
6674 uint16_t options = 0;
6675 size_t ip_len = IP_ADDR_LEN;
6676
6677 options = le16_to_cpu(fw_ddb_entry->options);
6678 if (options & DDB_OPT_IPV6_DEVICE)
6679 ip_len = IPv6_ADDR_LEN;
6680
6681 if (memcmp(fw_ddb_entry->ip_addr, flash_ddb_entry->ip_addr, ip_len))
6682 return QLA_ERROR;
6683
6684 if (memcmp(&fw_ddb_entry->isid[0], &flash_ddb_entry->isid[0],
6685 sizeof(fw_ddb_entry->isid)))
6686 return QLA_ERROR;
6687
6688 if (memcmp(&fw_ddb_entry->port, &flash_ddb_entry->port,
6689 sizeof(fw_ddb_entry->port)))
6690 return QLA_ERROR;
6691
6692 return QLA_SUCCESS;
6693}
6694
6695static int qla4xxx_find_flash_st_idx(struct scsi_qla_host *ha,
6696 struct dev_db_entry *fw_ddb_entry,
6697 uint32_t fw_idx, uint32_t *flash_index)
6698{
6699 struct dev_db_entry *flash_ddb_entry;
6700 dma_addr_t flash_ddb_entry_dma;
6701 uint32_t idx = 0;
6702 int max_ddbs;
6703 int ret = QLA_ERROR, status;
6704
6705 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
6706 MAX_DEV_DB_ENTRIES;
6707
6708 flash_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
6709 &flash_ddb_entry_dma);
6710 if (flash_ddb_entry == NULL || fw_ddb_entry == NULL) {
6711 ql4_printk(KERN_ERR, ha, "Out of memory\n");
6712 goto exit_find_st_idx;
6713 }
6714
6715 status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry,
6716 flash_ddb_entry_dma, fw_idx);
6717 if (status == QLA_SUCCESS) {
6718 status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry);
6719 if (status == QLA_SUCCESS) {
6720 *flash_index = fw_idx;
6721 ret = QLA_SUCCESS;
6722 goto exit_find_st_idx;
6723 }
6724 }
6725
6726 for (idx = 0; idx < max_ddbs; idx++) {
6727 status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry,
6728 flash_ddb_entry_dma, idx);
6729 if (status == QLA_ERROR)
6730 continue;
6731
6732 status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry);
6733 if (status == QLA_SUCCESS) {
6734 *flash_index = idx;
6735 ret = QLA_SUCCESS;
6736 goto exit_find_st_idx;
6737 }
6738 }
6739
6740 if (idx == max_ddbs)
6741 ql4_printk(KERN_ERR, ha, "Failed to find ST [%d] in flash\n",
6742 fw_idx);
6743
6744exit_find_st_idx:
6745 if (flash_ddb_entry)
6746 dma_pool_free(ha->fw_ddb_dma_pool, flash_ddb_entry,
6747 flash_ddb_entry_dma);
6748
6749 return ret;
6750}
6751
4a4bc2e9
LC		 6752static void qla4xxx_build_st_list(struct scsi_qla_host *ha,
6753 struct list_head *list_st)
13483730 6754{
4a4bc2e9 6755 struct qla_ddb_index *st_ddb_idx;
13483730 6756 int max_ddbs;
4a4bc2e9
LC		 6757 int fw_idx_size;
6758 struct dev_db_entry *fw_ddb_entry;
6759 dma_addr_t fw_ddb_dma;
13483730
MC		 6760 int ret;
6761 uint32_t idx = 0, next_idx = 0;
6762 uint32_t state = 0, conn_err = 0;
ad8bd45e 6763 uint32_t flash_index = -1;
4a4bc2e9 6764 uint16_t conn_id = 0;
13483730
MC		 6765
6766 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
6767 &fw_ddb_dma);
6768 if (fw_ddb_entry == NULL) {
6769 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
4a4bc2e9 6770 goto exit_st_list;
13483730
MC		 6771 }
6772
4a4bc2e9
LC		 6773 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
6774 MAX_DEV_DB_ENTRIES;
13483730
MC		 6775 fw_idx_size = sizeof(struct qla_ddb_index);
6776
6777 for (idx = 0; idx < max_ddbs; idx = next_idx) {
4a4bc2e9
LC		 6778 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
6779 NULL, &next_idx, &state,
6780 &conn_err, NULL, &conn_id);
13483730
MC		 6781 if (ret == QLA_ERROR)
6782 break;
6783
981c982c
LC		 6784 /* Ignore DDB if invalid state (unassigned) */
6785 if (state == DDB_DS_UNASSIGNED)
6786 goto continue_next_st;
6787
13483730
MC		 6788 /* Check if ST, add to the list_st */
6789 if (strlen((char *) fw_ddb_entry->iscsi_name) != 0)
6790 goto continue_next_st;
6791
6792 st_ddb_idx = vzalloc(fw_idx_size);
6793 if (!st_ddb_idx)
6794 break;
6795
ad8bd45e
MR		 6796 ret = qla4xxx_find_flash_st_idx(ha, fw_ddb_entry, idx,
6797 &flash_index);
6798 if (ret == QLA_ERROR) {
6799 ql4_printk(KERN_ERR, ha,
6800 "No flash entry for ST at idx [%d]\n", idx);
6801 st_ddb_idx->flash_ddb_idx = idx;
6802 } else {
6803 ql4_printk(KERN_INFO, ha,
6804 "ST at idx [%d] is stored at flash [%d]\n",
6805 idx, flash_index);
6806 st_ddb_idx->flash_ddb_idx = flash_index;
6807 }
6808
13483730
MC		 6809 st_ddb_idx->fw_ddb_idx = idx;
6810
4a4bc2e9 6811 list_add_tail(&st_ddb_idx->list, list_st);
13483730
MC		 6812continue_next_st:
6813 if (next_idx == 0)
6814 break;
6815 }
6816
4a4bc2e9
LC		 6817exit_st_list:
6818 if (fw_ddb_entry)
6819 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
6820}
6821
6822/**
6823 * qla4xxx_remove_failed_ddb - Remove inactive or failed ddb from list
6824 * @ha: pointer to adapter structure
6825 * @list_ddb: List from which failed ddb to be removed
6826 *
6827 * Iterate over the list of DDBs and find and remove DDBs that are either in
6828 * no connection active state or failed state
6829 **/
6830static void qla4xxx_remove_failed_ddb(struct scsi_qla_host *ha,
6831 struct list_head *list_ddb)
6832{
6833 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
6834 uint32_t next_idx = 0;
6835 uint32_t state = 0, conn_err = 0;
6836 int ret;
6837
6838 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
6839 ret = qla4xxx_get_fwddb_entry(ha, ddb_idx->fw_ddb_idx,
6840 NULL, 0, NULL, &next_idx, &state,
6841 &conn_err, NULL, NULL);
6842 if (ret == QLA_ERROR)
6843 continue;
6844
6845 if (state == DDB_DS_NO_CONNECTION_ACTIVE ||
6846 state == DDB_DS_SESSION_FAILED) {
6847 list_del_init(&ddb_idx->list);
6848 vfree(ddb_idx);
6849 }
6850 }
6851}
6852
ad8bd45e
MR		 6853static void qla4xxx_update_sess_disc_idx(struct scsi_qla_host *ha,
6854 struct ddb_entry *ddb_entry,
6855 struct dev_db_entry *fw_ddb_entry)
6856{
6857 struct iscsi_cls_session *cls_sess;
6858 struct iscsi_session *sess;
6859 uint32_t max_ddbs = 0;
6860 uint16_t ddb_link = -1;
6861
6862 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
6863 MAX_DEV_DB_ENTRIES;
6864
6865 cls_sess = ddb_entry->sess;
6866 sess = cls_sess->dd_data;
6867
6868 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
6869 if (ddb_link < max_ddbs)
6870 sess->discovery_parent_idx = ddb_link;
6871 else
6872 sess->discovery_parent_idx = DDB_NO_LINK;
6873}
6874
4a4bc2e9
LC		 6875static int qla4xxx_sess_conn_setup(struct scsi_qla_host *ha,
6876 struct dev_db_entry *fw_ddb_entry,
1dc8ed5d 6877 int is_reset, uint16_t idx)
4a4bc2e9
LC		 6878{
6879 struct iscsi_cls_session *cls_sess;
6880 struct iscsi_session *sess;
6881 struct iscsi_cls_conn *cls_conn;
6882 struct iscsi_endpoint *ep;
6883 uint16_t cmds_max = 32;
6884 uint16_t conn_id = 0;
6885 uint32_t initial_cmdsn = 0;
6886 int ret = QLA_SUCCESS;
6887
6888 struct ddb_entry *ddb_entry = NULL;
6889
6890 /* Create session object, with INVALID_ENTRY,
6891 * the targer_id would get set when we issue the login
13483730 6892 */
4a4bc2e9
LC		 6893 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, ha->host,
6894 cmds_max, sizeof(struct ddb_entry),
6895 sizeof(struct ql4_task_data),
6896 initial_cmdsn, INVALID_ENTRY);
6897 if (!cls_sess) {
6898 ret = QLA_ERROR;
6899 goto exit_setup;
6900 }
13483730 6901
4a4bc2e9
LC		 6902 /*
6903 * so calling module_put function to decrement the
6904 * reference count.
6905 **/
6906 module_put(qla4xxx_iscsi_transport.owner);
6907 sess = cls_sess->dd_data;
6908 ddb_entry = sess->dd_data;
6909 ddb_entry->sess = cls_sess;
6910
6911 cls_sess->recovery_tmo = ql4xsess_recovery_tmo;
6912 memcpy(&ddb_entry->fw_ddb_entry, fw_ddb_entry,
6913 sizeof(struct dev_db_entry));
6914
1dc8ed5d 6915 qla4xxx_setup_flash_ddb_entry(ha, ddb_entry, idx);
4a4bc2e9
LC		 6916
6917 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), conn_id);
6918
6919 if (!cls_conn) {
6920 ret = QLA_ERROR;
6921 goto exit_setup;
13483730
MC		 6922 }
6923
4a4bc2e9 6924 ddb_entry->conn = cls_conn;
13483730 6925
4a4bc2e9
LC		 6926 /* Setup ep, for displaying attributes in sysfs */
6927 ep = qla4xxx_get_ep_fwdb(ha, fw_ddb_entry);
6928 if (ep) {
6929 ep->conn = cls_conn;
6930 cls_conn->ep = ep;
6931 } else {
6932 DEBUG2(ql4_printk(KERN_ERR, ha, "Unable to get ep\n"));
6933 ret = QLA_ERROR;
6934 goto exit_setup;
6935 }
13483730 6936
4a4bc2e9
LC		 6937 /* Update sess/conn params */
6938 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn);
ad8bd45e 6939 qla4xxx_update_sess_disc_idx(ha, ddb_entry, fw_ddb_entry);
13483730 6940
4a4bc2e9
LC		 6941 if (is_reset == RESET_ADAPTER) {
6942 iscsi_block_session(cls_sess);
6943 /* Use the relogin path to discover new devices
6944 * by short-circuting the logic of setting
6945 * timer to relogin - instead set the flags
6946 * to initiate login right away.
6947 */
6948 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
6949 set_bit(DF_RELOGIN, &ddb_entry->flags);
6950 }
6951
6952exit_setup:
6953 return ret;
6954}
6955
ad8bd45e
MR		 6956static void qla4xxx_update_fw_ddb_link(struct scsi_qla_host *ha,
6957 struct list_head *list_ddb,
6958 struct dev_db_entry *fw_ddb_entry)
6959{
6960 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
6961 uint16_t ddb_link;
6962
6963 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
6964
6965 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
6966 if (ddb_idx->fw_ddb_idx == ddb_link) {
6967 DEBUG2(ql4_printk(KERN_INFO, ha,
6968 "Updating NT parent idx from [%d] to [%d]\n",
6969 ddb_link, ddb_idx->flash_ddb_idx));
6970 fw_ddb_entry->ddb_link =
6971 cpu_to_le16(ddb_idx->flash_ddb_idx);
6972 return;
6973 }
6974 }
6975}
6976
4a4bc2e9 6977static void qla4xxx_build_nt_list(struct scsi_qla_host *ha,
ad8bd45e
MR		 6978 struct list_head *list_nt,
6979 struct list_head *list_st,
6980 int is_reset)
4a4bc2e9
LC		 6981{
6982 struct dev_db_entry *fw_ddb_entry;
ad8bd45e 6983 struct ddb_entry *ddb_entry = NULL;
4a4bc2e9
LC		 6984 dma_addr_t fw_ddb_dma;
6985 int max_ddbs;
6986 int fw_idx_size;
6987 int ret;
6988 uint32_t idx = 0, next_idx = 0;
6989 uint32_t state = 0, conn_err = 0;
ad8bd45e 6990 uint32_t ddb_idx = -1;
4a4bc2e9 6991 uint16_t conn_id = 0;
ad8bd45e 6992 uint16_t ddb_link = -1;
4a4bc2e9
LC		 6993 struct qla_ddb_index *nt_ddb_idx;
6994
6995 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
6996 &fw_ddb_dma);
6997 if (fw_ddb_entry == NULL) {
6998 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
6999 goto exit_nt_list;
13483730 7000 }
4a4bc2e9
LC		 7001 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
7002 MAX_DEV_DB_ENTRIES;
7003 fw_idx_size = sizeof(struct qla_ddb_index);
13483730
MC		 7004
7005 for (idx = 0; idx < max_ddbs; idx = next_idx) {
4a4bc2e9
LC		 7006 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
7007 NULL, &next_idx, &state,
7008 &conn_err, NULL, &conn_id);
13483730
MC		 7009 if (ret == QLA_ERROR)
7010 break;
7011
7012 if (qla4xxx_verify_boot_idx(ha, idx) != QLA_SUCCESS)
7013 goto continue_next_nt;
7014
7015 /* Check if NT, then add to list it */
7016 if (strlen((char *) fw_ddb_entry->iscsi_name) == 0)
7017 goto continue_next_nt;
7018
ad8bd45e
MR		 7019 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
7020 if (ddb_link < max_ddbs)
7021 qla4xxx_update_fw_ddb_link(ha, list_st, fw_ddb_entry);
7022
4a4bc2e9 7023 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE ||
ad8bd45e
MR		 7024 state == DDB_DS_SESSION_FAILED) &&
7025 (is_reset == INIT_ADAPTER))
4a4bc2e9 7026 goto continue_next_nt;
13483730 7027
4a4bc2e9
LC		 7028 DEBUG2(ql4_printk(KERN_INFO, ha,
7029 "Adding DDB to session = 0x%x\n", idx));
ad8bd45e 7030
4a4bc2e9
LC		 7031 if (is_reset == INIT_ADAPTER) {
7032 nt_ddb_idx = vmalloc(fw_idx_size);
7033 if (!nt_ddb_idx)
7034 break;
13483730 7035
4a4bc2e9 7036 nt_ddb_idx->fw_ddb_idx = idx;
13483730 7037
1cb78d73
VC		 7038 /* Copy original isid as it may get updated in function
7039 * qla4xxx_update_isid(). We need original isid in
7040 * function qla4xxx_compare_tuple_ddb to find duplicate
7041 * target */
7042 memcpy(&nt_ddb_idx->flash_isid[0],
7043 &fw_ddb_entry->isid[0],
7044 sizeof(nt_ddb_idx->flash_isid));
7045
7046 ret = qla4xxx_is_flash_ddb_exists(ha, list_nt,
7047 fw_ddb_entry);
7048 if (ret == QLA_SUCCESS) {
7049 /* free nt_ddb_idx and do not add to list_nt */
4a4bc2e9
LC		 7050 vfree(nt_ddb_idx);
7051 goto continue_next_nt;
13483730 7052 }
1cb78d73
VC		 7053
7054 /* Copy updated isid */
7055 memcpy(&nt_ddb_idx->fw_ddb, fw_ddb_entry,
7056 sizeof(struct dev_db_entry));
7057
4a4bc2e9
LC		 7058 list_add_tail(&nt_ddb_idx->list, list_nt);
7059 } else if (is_reset == RESET_ADAPTER) {
ad8bd45e
MR		 7060 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry,
7061 &ddb_idx);
7062 if (ret == QLA_SUCCESS) {
7063 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha,
7064 ddb_idx);
7065 if (ddb_entry != NULL)
7066 qla4xxx_update_sess_disc_idx(ha,
7067 ddb_entry,
7068 fw_ddb_entry);
4a4bc2e9 7069 goto continue_next_nt;
ad8bd45e 7070 }
13483730 7071 }
4a4bc2e9 7072
1dc8ed5d 7073 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, is_reset, idx);
4a4bc2e9
LC		 7074 if (ret == QLA_ERROR)
7075 goto exit_nt_list;
7076
13483730
MC		 7077continue_next_nt:
7078 if (next_idx == 0)
7079 break;
7080 }
4a4bc2e9
LC		 7081
7082exit_nt_list:
13483730
MC		 7083 if (fw_ddb_entry)
7084 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
4a4bc2e9
LC		 7085}
7086
1e9e2be3 7087static void qla4xxx_build_new_nt_list(struct scsi_qla_host *ha,
ad8bd45e
MR		 7088 struct list_head *list_nt,
7089 uint16_t target_id)
1e9e2be3
AC		 7090{
7091 struct dev_db_entry *fw_ddb_entry;
7092 dma_addr_t fw_ddb_dma;
7093 int max_ddbs;
7094 int fw_idx_size;
7095 int ret;
7096 uint32_t idx = 0, next_idx = 0;
7097 uint32_t state = 0, conn_err = 0;
7098 uint16_t conn_id = 0;
7099 struct qla_ddb_index *nt_ddb_idx;
7100
7101 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
7102 &fw_ddb_dma);
7103 if (fw_ddb_entry == NULL) {
7104 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
7105 goto exit_new_nt_list;
7106 }
7107 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
7108 MAX_DEV_DB_ENTRIES;
7109 fw_idx_size = sizeof(struct qla_ddb_index);
7110
7111 for (idx = 0; idx < max_ddbs; idx = next_idx) {
7112 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
7113 NULL, &next_idx, &state,
7114 &conn_err, NULL, &conn_id);
7115 if (ret == QLA_ERROR)
7116 break;
7117
7118 /* Check if NT, then add it to list */
7119 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0)
7120 goto continue_next_new_nt;
7121
7122 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE))
7123 goto continue_next_new_nt;
7124
7125 DEBUG2(ql4_printk(KERN_INFO, ha,
7126 "Adding DDB to session = 0x%x\n", idx));
7127
7128 nt_ddb_idx = vmalloc(fw_idx_size);
7129 if (!nt_ddb_idx)
7130 break;
7131
7132 nt_ddb_idx->fw_ddb_idx = idx;
7133
ad8bd45e 7134 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL);
1e9e2be3
AC		 7135 if (ret == QLA_SUCCESS) {
7136 /* free nt_ddb_idx and do not add to list_nt */
7137 vfree(nt_ddb_idx);
7138 goto continue_next_new_nt;
7139 }
7140
ad8bd45e
MR		 7141 if (target_id < max_ddbs)
7142 fw_ddb_entry->ddb_link = cpu_to_le16(target_id);
7143
1e9e2be3
AC		 7144 list_add_tail(&nt_ddb_idx->list, list_nt);
7145
7146 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER,
7147 idx);
7148 if (ret == QLA_ERROR)
7149 goto exit_new_nt_list;
7150
7151continue_next_new_nt:
7152 if (next_idx == 0)
7153 break;
7154 }
7155
7156exit_new_nt_list:
7157 if (fw_ddb_entry)
7158 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
7159}
7160
4a4bc2e9 7161/**
1e9e2be3
AC		 7162 * qla4xxx_sysfs_ddb_is_non_persistent - check for non-persistence of ddb entry
7163 * @dev: dev associated with the sysfs entry
7164 * @data: pointer to flashnode session object
4a4bc2e9 7165 *
1e9e2be3
AC		 7166 * Returns:
7167 * 1: if flashnode entry is non-persistent
7168 * 0: if flashnode entry is persistent
4a4bc2e9 7169 **/
1e9e2be3 7170static int qla4xxx_sysfs_ddb_is_non_persistent(struct device *dev, void *data)
4a4bc2e9 7171{
1e9e2be3 7172 struct iscsi_bus_flash_session *fnode_sess;
4a4bc2e9 7173
1e9e2be3
AC		 7174 if (!iscsi_flashnode_bus_match(dev, NULL))
7175 return 0;
4a4bc2e9 7176
1e9e2be3 7177 fnode_sess = iscsi_dev_to_flash_session(dev);
4a4bc2e9 7178
1e9e2be3
AC		 7179 return (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT);
7180}
4a4bc2e9 7181
1e9e2be3
AC		 7182/**
7183 * qla4xxx_sysfs_ddb_tgt_create - Create sysfs entry for target
7184 * @ha: pointer to host
7185 * @fw_ddb_entry: flash ddb data
7186 * @idx: target index
7187 * @user: if set then this call is made from userland else from kernel
7188 *
7189 * Returns:
7190 * On sucess: QLA_SUCCESS
7191 * On failure: QLA_ERROR
7192 *
7193 * This create separate sysfs entries for session and connection attributes of
7194 * the given fw ddb entry.
7195 * If this is invoked as a result of a userspace call then the entry is marked
7196 * as nonpersistent using flash_state field.
7197 **/
28e02f1a
VC		 7198static int qla4xxx_sysfs_ddb_tgt_create(struct scsi_qla_host *ha,
7199 struct dev_db_entry *fw_ddb_entry,
7200 uint16_t *idx, int user)
1e9e2be3
AC		 7201{
7202 struct iscsi_bus_flash_session *fnode_sess = NULL;
7203 struct iscsi_bus_flash_conn *fnode_conn = NULL;
7204 int rc = QLA_ERROR;
4a4bc2e9 7205
1e9e2be3
AC		 7206 fnode_sess = iscsi_create_flashnode_sess(ha->host, *idx,
7207 &qla4xxx_iscsi_transport, 0);
7208 if (!fnode_sess) {
7209 ql4_printk(KERN_ERR, ha,
7210 "%s: Unable to create session sysfs entry for flashnode %d of host%lu\n",
7211 __func__, *idx, ha->host_no);
7212 goto exit_tgt_create;
4a4bc2e9
LC		 7213 }
7214
1e9e2be3
AC		 7215 fnode_conn = iscsi_create_flashnode_conn(ha->host, fnode_sess,
7216 &qla4xxx_iscsi_transport, 0);
7217 if (!fnode_conn) {
7218 ql4_printk(KERN_ERR, ha,
7219 "%s: Unable to create conn sysfs entry for flashnode %d of host%lu\n",
7220 __func__, *idx, ha->host_no);
7221 goto free_sess;
7222 }
c28eaaca 7223
1e9e2be3
AC		 7224 if (user) {
7225 fnode_sess->flash_state = DEV_DB_NON_PERSISTENT;
7226 } else {
7227 fnode_sess->flash_state = DEV_DB_PERSISTENT;
4a4bc2e9 7228
1e9e2be3
AC		 7229 if (*idx == ha->pri_ddb_idx || *idx == ha->sec_ddb_idx)
7230 fnode_sess->is_boot_target = 1;
7231 else
7232 fnode_sess->is_boot_target = 0;
7233 }
f1f2e60e 7234
1e9e2be3
AC		 7235 rc = qla4xxx_copy_from_fwddb_param(fnode_sess, fnode_conn,
7236 fw_ddb_entry);
72b4a046
Y		 7237 if (rc)
7238 goto free_sess;
4a4bc2e9 7239
1e9e2be3
AC		 7240 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n",
7241 __func__, fnode_sess->dev.kobj.name);
4a4bc2e9 7242
1e9e2be3
AC		 7243 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n",
7244 __func__, fnode_conn->dev.kobj.name);
4a4bc2e9 7245
1e9e2be3 7246 return QLA_SUCCESS;
13483730 7247
1e9e2be3
AC		 7248free_sess:
7249 iscsi_destroy_flashnode_sess(fnode_sess);
7250
7251exit_tgt_create:
7252 return QLA_ERROR;
13483730
MC		 7253}
7254
1dc8ed5d 7255/**
1e9e2be3
AC		 7256 * qla4xxx_sysfs_ddb_add - Add new ddb entry in flash
7257 * @shost: pointer to host
7258 * @buf: type of ddb entry (ipv4/ipv6)
7259 * @len: length of buf
1dc8ed5d 7260 *
1e9e2be3
AC		 7261 * This creates new ddb entry in the flash by finding first free index and
7262 * storing default ddb there. And then create sysfs entry for the new ddb entry.
1dc8ed5d 7263 **/
1e9e2be3
AC		 7264static int qla4xxx_sysfs_ddb_add(struct Scsi_Host *shost, const char *buf,
7265 int len)
1dc8ed5d 7266{
1e9e2be3 7267 struct scsi_qla_host *ha = to_qla_host(shost);
1dc8ed5d
MR		 7268 struct dev_db_entry *fw_ddb_entry = NULL;
7269 dma_addr_t fw_ddb_entry_dma;
1e9e2be3
AC		 7270 struct device *dev;
7271 uint16_t idx = 0;
7272 uint16_t max_ddbs = 0;
7273 uint32_t options = 0;
7274 uint32_t rval = QLA_ERROR;
7275
c962c18b
AC		 7276 if (strncasecmp(PORTAL_TYPE_IPV4, buf, 4) &&
7277 strncasecmp(PORTAL_TYPE_IPV6, buf, 4)) {
1e9e2be3
AC		 7278 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Invalid portal type\n",
7279 __func__));
7280 goto exit_ddb_add;
7281 }
1dc8ed5d 7282
a957a7d7 7283 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES :
1dc8ed5d
MR		 7284 MAX_DEV_DB_ENTRIES;
7285
7286 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7287 &fw_ddb_entry_dma, GFP_KERNEL);
7288 if (!fw_ddb_entry) {
1e9e2be3
AC		 7289 DEBUG2(ql4_printk(KERN_ERR, ha,
7290 "%s: Unable to allocate dma buffer\n",
7291 __func__));
7292 goto exit_ddb_add;
1dc8ed5d
MR		 7293 }
7294
1e9e2be3
AC		 7295 dev = iscsi_find_flashnode_sess(ha->host, NULL,
7296 qla4xxx_sysfs_ddb_is_non_persistent);
7297 if (dev) {
7298 ql4_printk(KERN_ERR, ha,
7299 "%s: A non-persistent entry %s found\n",
7300 __func__, dev->kobj.name);
8526cb11 7301 put_device(dev);
1e9e2be3
AC		 7302 goto exit_ddb_add;
7303 }
1dc8ed5d 7304
99937574
AC		 7305 /* Index 0 and 1 are reserved for boot target entries */
7306 for (idx = 2; idx < max_ddbs; idx++) {
1e9e2be3
AC		 7307 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry,
7308 fw_ddb_entry_dma, idx))
7309 break;
7310 }
1dc8ed5d 7311
1e9e2be3
AC		 7312 if (idx == max_ddbs)
7313 goto exit_ddb_add;
1dc8ed5d 7314
1e9e2be3
AC		 7315 if (!strncasecmp("ipv6", buf, 4))
7316 options |= IPV6_DEFAULT_DDB_ENTRY;
1dc8ed5d 7317
1e9e2be3
AC		 7318 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
7319 if (rval == QLA_ERROR)
7320 goto exit_ddb_add;
1dc8ed5d 7321
1e9e2be3 7322 rval = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 1);
1dc8ed5d 7323
1e9e2be3 7324exit_ddb_add:
1dc8ed5d
MR		 7325 if (fw_ddb_entry)
7326 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7327 fw_ddb_entry, fw_ddb_entry_dma);
1e9e2be3
AC		 7328 if (rval == QLA_SUCCESS)
7329 return idx;
7330 else
7331 return -EIO;
1dc8ed5d
MR		 7332}
7333
afaf5a2d 7334/**
1e9e2be3
AC		 7335 * qla4xxx_sysfs_ddb_apply - write the target ddb contents to Flash
7336 * @fnode_sess: pointer to session attrs of flash ddb entry
7337 * @fnode_conn: pointer to connection attrs of flash ddb entry
afaf5a2d 7338 *
1e9e2be3
AC		 7339 * This writes the contents of target ddb buffer to Flash with a valid cookie
7340 * value in order to make the ddb entry persistent.
afaf5a2d 7341 **/
1e9e2be3
AC		 7342static int qla4xxx_sysfs_ddb_apply(struct iscsi_bus_flash_session *fnode_sess,
7343 struct iscsi_bus_flash_conn *fnode_conn)
afaf5a2d 7344{
1e9e2be3
AC		 7345 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7346 struct scsi_qla_host *ha = to_qla_host(shost);
7347 uint32_t dev_db_start_offset = FLASH_OFFSET_DB_INFO;
7348 struct dev_db_entry *fw_ddb_entry = NULL;
7349 dma_addr_t fw_ddb_entry_dma;
7350 uint32_t options = 0;
7351 int rval = 0;
afaf5a2d 7352
1e9e2be3
AC		 7353 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7354 &fw_ddb_entry_dma, GFP_KERNEL);
7355 if (!fw_ddb_entry) {
7356 DEBUG2(ql4_printk(KERN_ERR, ha,
7357 "%s: Unable to allocate dma buffer\n",
7358 __func__));
7359 rval = -ENOMEM;
7360 goto exit_ddb_apply;
7361 }
afaf5a2d 7362
c962c18b 7363 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
1e9e2be3
AC		 7364 options |= IPV6_DEFAULT_DDB_ENTRY;
7365
7366 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
7367 if (rval == QLA_ERROR)
7368 goto exit_ddb_apply;
7369
7370 dev_db_start_offset += (fnode_sess->target_id *
7371 sizeof(*fw_ddb_entry));
7372
7373 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry);
7374 fw_ddb_entry->cookie = DDB_VALID_COOKIE;
7375
7376 rval = qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset,
7377 sizeof(*fw_ddb_entry), FLASH_OPT_RMW_COMMIT);
7378
7379 if (rval == QLA_SUCCESS) {
7380 fnode_sess->flash_state = DEV_DB_PERSISTENT;
7381 ql4_printk(KERN_INFO, ha,
7382 "%s: flash node %u of host %lu written to flash\n",
7383 __func__, fnode_sess->target_id, ha->host_no);
7384 } else {
7385 rval = -EIO;
7386 ql4_printk(KERN_ERR, ha,
7387 "%s: Error while writing flash node %u of host %lu to flash\n",
7388 __func__, fnode_sess->target_id, ha->host_no);
7389 }
7390
7391exit_ddb_apply:
7392 if (fw_ddb_entry)
7393 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7394 fw_ddb_entry, fw_ddb_entry_dma);
7395 return rval;
7396}
7397
7398static ssize_t qla4xxx_sysfs_ddb_conn_open(struct scsi_qla_host *ha,
7399 struct dev_db_entry *fw_ddb_entry,
7400 uint16_t idx)
7401{
7402 struct dev_db_entry *ddb_entry = NULL;
7403 dma_addr_t ddb_entry_dma;
7404 unsigned long wtime;
7405 uint32_t mbx_sts = 0;
7406 uint32_t state = 0, conn_err = 0;
7407 uint16_t tmo = 0;
7408 int ret = 0;
7409
7410 ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*ddb_entry),
7411 &ddb_entry_dma, GFP_KERNEL);
7412 if (!ddb_entry) {
7413 DEBUG2(ql4_printk(KERN_ERR, ha,
7414 "%s: Unable to allocate dma buffer\n",
7415 __func__));
7416 return QLA_ERROR;
7417 }
7418
7419 memcpy(ddb_entry, fw_ddb_entry, sizeof(*ddb_entry));
7420
7421 ret = qla4xxx_set_ddb_entry(ha, idx, ddb_entry_dma, &mbx_sts);
7422 if (ret != QLA_SUCCESS) {
7423 DEBUG2(ql4_printk(KERN_ERR, ha,
7424 "%s: Unable to set ddb entry for index %d\n",
7425 __func__, idx));
7426 goto exit_ddb_conn_open;
7427 }
7428
7429 qla4xxx_conn_open(ha, idx);
7430
7431 /* To ensure that sendtargets is done, wait for at least 12 secs */
7432 tmo = ((ha->def_timeout > LOGIN_TOV) &&
7433 (ha->def_timeout < LOGIN_TOV * 10) ?
7434 ha->def_timeout : LOGIN_TOV);
7435
7436 DEBUG2(ql4_printk(KERN_INFO, ha,
7437 "Default time to wait for login to ddb %d\n", tmo));
7438
7439 wtime = jiffies + (HZ * tmo);
7440 do {
7441 ret = qla4xxx_get_fwddb_entry(ha, idx, NULL, 0, NULL,
7442 NULL, &state, &conn_err, NULL,
7443 NULL);
7444 if (ret == QLA_ERROR)
7445 continue;
7446
7447 if (state == DDB_DS_NO_CONNECTION_ACTIVE ||
7448 state == DDB_DS_SESSION_FAILED)
7449 break;
7450
7451 schedule_timeout_uninterruptible(HZ / 10);
7452 } while (time_after(wtime, jiffies));
7453
7454exit_ddb_conn_open:
7455 if (ddb_entry)
7456 dma_free_coherent(&ha->pdev->dev, sizeof(*ddb_entry),
7457 ddb_entry, ddb_entry_dma);
7458 return ret;
7459}
7460
7461static int qla4xxx_ddb_login_st(struct scsi_qla_host *ha,
ad8bd45e
MR		 7462 struct dev_db_entry *fw_ddb_entry,
7463 uint16_t target_id)
1e9e2be3
AC		 7464{
7465 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
7466 struct list_head list_nt;
7467 uint16_t ddb_index;
7468 int ret = 0;
7469
7470 if (test_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags)) {
7471 ql4_printk(KERN_WARNING, ha,
7472 "%s: A discovery already in progress!\n", __func__);
7473 return QLA_ERROR;
7474 }
7475
7476 INIT_LIST_HEAD(&list_nt);
7477
7478 set_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags);
7479
7480 ret = qla4xxx_get_ddb_index(ha, &ddb_index);
7481 if (ret == QLA_ERROR)
7482 goto exit_login_st_clr_bit;
7483
7484 ret = qla4xxx_sysfs_ddb_conn_open(ha, fw_ddb_entry, ddb_index);
7485 if (ret == QLA_ERROR)
7486 goto exit_login_st;
7487
ad8bd45e 7488 qla4xxx_build_new_nt_list(ha, &list_nt, target_id);
1e9e2be3
AC		 7489
7490 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, &list_nt, list) {
7491 list_del_init(&ddb_idx->list);
7492 qla4xxx_clear_ddb_entry(ha, ddb_idx->fw_ddb_idx);
7493 vfree(ddb_idx);
7494 }
7495
7496exit_login_st:
7497 if (qla4xxx_clear_ddb_entry(ha, ddb_index) == QLA_ERROR) {
7498 ql4_printk(KERN_ERR, ha,
7499 "Unable to clear DDB index = 0x%x\n", ddb_index);
7500 }
7501
7502 clear_bit(ddb_index, ha->ddb_idx_map);
7503
7504exit_login_st_clr_bit:
7505 clear_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags);
7506 return ret;
7507}
7508
7509static int qla4xxx_ddb_login_nt(struct scsi_qla_host *ha,
7510 struct dev_db_entry *fw_ddb_entry,
7511 uint16_t idx)
7512{
7513 int ret = QLA_ERROR;
7514
ad8bd45e 7515 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL);
1e9e2be3
AC		 7516 if (ret != QLA_SUCCESS)
7517 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER,
7518 idx);
7519 else
7520 ret = -EPERM;
7521
7522 return ret;
7523}
7524
7525/**
7526 * qla4xxx_sysfs_ddb_login - Login to the specified target
7527 * @fnode_sess: pointer to session attrs of flash ddb entry
7528 * @fnode_conn: pointer to connection attrs of flash ddb entry
7529 *
7530 * This logs in to the specified target
7531 **/
7532static int qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess,
7533 struct iscsi_bus_flash_conn *fnode_conn)
7534{
7535 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7536 struct scsi_qla_host *ha = to_qla_host(shost);
7537 struct dev_db_entry *fw_ddb_entry = NULL;
7538 dma_addr_t fw_ddb_entry_dma;
7539 uint32_t options = 0;
7540 int ret = 0;
7541
7542 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT) {
7543 ql4_printk(KERN_ERR, ha,
7544 "%s: Target info is not persistent\n", __func__);
7545 ret = -EIO;
7546 goto exit_ddb_login;
7547 }
7548
7549 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7550 &fw_ddb_entry_dma, GFP_KERNEL);
7551 if (!fw_ddb_entry) {
7552 DEBUG2(ql4_printk(KERN_ERR, ha,
7553 "%s: Unable to allocate dma buffer\n",
7554 __func__));
7555 ret = -ENOMEM;
7556 goto exit_ddb_login;
7557 }
7558
c962c18b 7559 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
1e9e2be3
AC		 7560 options |= IPV6_DEFAULT_DDB_ENTRY;
7561
7562 ret = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
7563 if (ret == QLA_ERROR)
7564 goto exit_ddb_login;
7565
7566 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry);
7567 fw_ddb_entry->cookie = DDB_VALID_COOKIE;
7568
7569 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0)
ad8bd45e
MR		 7570 ret = qla4xxx_ddb_login_st(ha, fw_ddb_entry,
7571 fnode_sess->target_id);
1e9e2be3
AC		 7572 else
7573 ret = qla4xxx_ddb_login_nt(ha, fw_ddb_entry,
7574 fnode_sess->target_id);
7575
7576 if (ret > 0)
7577 ret = -EIO;
7578
7579exit_ddb_login:
7580 if (fw_ddb_entry)
7581 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7582 fw_ddb_entry, fw_ddb_entry_dma);
7583 return ret;
7584}
7585
7586/**
7587 * qla4xxx_sysfs_ddb_logout_sid - Logout session for the specified target
7588 * @cls_sess: pointer to session to be logged out
7589 *
7590 * This performs session log out from the specified target
7591 **/
7592static int qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess)
7593{
7594 struct iscsi_session *sess;
7595 struct ddb_entry *ddb_entry = NULL;
7596 struct scsi_qla_host *ha;
7597 struct dev_db_entry *fw_ddb_entry = NULL;
7598 dma_addr_t fw_ddb_entry_dma;
7599 unsigned long flags;
7600 unsigned long wtime;
7601 uint32_t ddb_state;
7602 int options;
7603 int ret = 0;
7604
7605 sess = cls_sess->dd_data;
7606 ddb_entry = sess->dd_data;
7607 ha = ddb_entry->ha;
7608
7609 if (ddb_entry->ddb_type != FLASH_DDB) {
7610 ql4_printk(KERN_ERR, ha, "%s: Not a flash node session\n",
7611 __func__);
7612 ret = -ENXIO;
7613 goto exit_ddb_logout;
7614 }
7615
37719c2a
AC		 7616 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) {
7617 ql4_printk(KERN_ERR, ha,
7618 "%s: Logout from boot target entry is not permitted.\n",
7619 __func__);
7620 ret = -EPERM;
7621 goto exit_ddb_logout;
7622 }
7623
1e9e2be3
AC		 7624 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7625 &fw_ddb_entry_dma, GFP_KERNEL);
7626 if (!fw_ddb_entry) {
7627 ql4_printk(KERN_ERR, ha,
7628 "%s: Unable to allocate dma buffer\n", __func__);
7629 ret = -ENOMEM;
7630 goto exit_ddb_logout;
7631 }
7632
99c6a33b
AC		 7633 if (test_and_set_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags))
7634 goto ddb_logout_init;
7635
7636 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
7637 fw_ddb_entry, fw_ddb_entry_dma,
7638 NULL, NULL, &ddb_state, NULL,
7639 NULL, NULL);
7640 if (ret == QLA_ERROR)
7641 goto ddb_logout_init;
7642
7643 if (ddb_state == DDB_DS_SESSION_ACTIVE)
7644 goto ddb_logout_init;
7645
7646 /* wait until next relogin is triggered using DF_RELOGIN and
7647 * clear DF_RELOGIN to avoid invocation of further relogin
7648 */
7649 wtime = jiffies + (HZ * RELOGIN_TOV);
7650 do {
7651 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags))
7652 goto ddb_logout_init;
7653
7654 schedule_timeout_uninterruptible(HZ);
7655 } while ((time_after(wtime, jiffies)));
7656
7657ddb_logout_init:
7658 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY);
7659 atomic_set(&ddb_entry->relogin_timer, 0);
7660
7661 options = LOGOUT_OPTION_CLOSE_SESSION;
7662 qla4xxx_session_logout_ddb(ha, ddb_entry, options);
7663
7664 memset(fw_ddb_entry, 0, sizeof(*fw_ddb_entry));
1e9e2be3
AC		 7665 wtime = jiffies + (HZ * LOGOUT_TOV);
7666 do {
7667 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
7668 fw_ddb_entry, fw_ddb_entry_dma,
7669 NULL, NULL, &ddb_state, NULL,
7670 NULL, NULL);
7671 if (ret == QLA_ERROR)
7672 goto ddb_logout_clr_sess;
7673
7674 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) ||
7675 (ddb_state == DDB_DS_SESSION_FAILED))
7676 goto ddb_logout_clr_sess;
7677
7678 schedule_timeout_uninterruptible(HZ);
7679 } while ((time_after(wtime, jiffies)));
7680
7681ddb_logout_clr_sess:
7682 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
7683 /*
7684 * we have decremented the reference count of the driver
7685 * when we setup the session to have the driver unload
7686 * to be seamless without actually destroying the
7687 * session
7688 **/
7689 try_module_get(qla4xxx_iscsi_transport.owner);
7690 iscsi_destroy_endpoint(ddb_entry->conn->ep);
7691
7692 spin_lock_irqsave(&ha->hardware_lock, flags);
7693 qla4xxx_free_ddb(ha, ddb_entry);
99c6a33b 7694 clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map);
1e9e2be3
AC		 7695 spin_unlock_irqrestore(&ha->hardware_lock, flags);
7696
7697 iscsi_session_teardown(ddb_entry->sess);
7698
99c6a33b 7699 clear_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags);
1e9e2be3
AC		 7700 ret = QLA_SUCCESS;
7701
7702exit_ddb_logout:
7703 if (fw_ddb_entry)
7704 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
7705 fw_ddb_entry, fw_ddb_entry_dma);
7706 return ret;
7707}
7708
7709/**
7710 * qla4xxx_sysfs_ddb_logout - Logout from the specified target
7711 * @fnode_sess: pointer to session attrs of flash ddb entry
7712 * @fnode_conn: pointer to connection attrs of flash ddb entry
7713 *
7714 * This performs log out from the specified target
7715 **/
7716static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess,
7717 struct iscsi_bus_flash_conn *fnode_conn)
7718{
7719 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7720 struct scsi_qla_host *ha = to_qla_host(shost);
7721 struct ql4_tuple_ddb *flash_tddb = NULL;
7722 struct ql4_tuple_ddb *tmp_tddb = NULL;
7723 struct dev_db_entry *fw_ddb_entry = NULL;
7724 struct ddb_entry *ddb_entry = NULL;
7725 dma_addr_t fw_ddb_dma;
7726 uint32_t next_idx = 0;
7727 uint32_t state = 0, conn_err = 0;
7728 uint16_t conn_id = 0;
7729 int idx, index;
7730 int status, ret = 0;
7731
7732 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
7733 &fw_ddb_dma);
7734 if (fw_ddb_entry == NULL) {
7735 ql4_printk(KERN_ERR, ha, "%s:Out of memory\n", __func__);
7736 ret = -ENOMEM;
7737 goto exit_ddb_logout;
7738 }
7739
7740 flash_tddb = vzalloc(sizeof(*flash_tddb));
7741 if (!flash_tddb) {
7742 ql4_printk(KERN_WARNING, ha,
7743 "%s:Memory Allocation failed.\n", __func__);
7744 ret = -ENOMEM;
7745 goto exit_ddb_logout;
7746 }
7747
7748 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
7749 if (!tmp_tddb) {
7750 ql4_printk(KERN_WARNING, ha,
7751 "%s:Memory Allocation failed.\n", __func__);
7752 ret = -ENOMEM;
7753 goto exit_ddb_logout;
7754 }
7755
7756 if (!fnode_sess->targetname) {
7757 ql4_printk(KERN_ERR, ha,
7758 "%s:Cannot logout from SendTarget entry\n",
7759 __func__);
7760 ret = -EPERM;
7761 goto exit_ddb_logout;
7762 }
7763
7764 if (fnode_sess->is_boot_target) {
7765 ql4_printk(KERN_ERR, ha,
7766 "%s: Logout from boot target entry is not permitted.\n",
7767 __func__);
7768 ret = -EPERM;
7769 goto exit_ddb_logout;
7770 }
7771
bdbb9662 7772 strlcpy(flash_tddb->iscsi_name, fnode_sess->targetname,
1e9e2be3
AC		 7773 ISCSI_NAME_SIZE);
7774
c962c18b 7775 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
1e9e2be3
AC		 7776 sprintf(flash_tddb->ip_addr, "%pI6", fnode_conn->ipaddress);
7777 else
7778 sprintf(flash_tddb->ip_addr, "%pI4", fnode_conn->ipaddress);
7779
7780 flash_tddb->tpgt = fnode_sess->tpgt;
7781 flash_tddb->port = fnode_conn->port;
7782
7783 COPY_ISID(flash_tddb->isid, fnode_sess->isid);
7784
7785 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
7786 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
7787 if (ddb_entry == NULL)
7788 continue;
7789
7790 if (ddb_entry->ddb_type != FLASH_DDB)
7791 continue;
7792
7793 index = ddb_entry->sess->target_id;
7794 status = qla4xxx_get_fwddb_entry(ha, index, fw_ddb_entry,
7795 fw_ddb_dma, NULL, &next_idx,
7796 &state, &conn_err, NULL,
7797 &conn_id);
7798 if (status == QLA_ERROR) {
7799 ret = -ENOMEM;
7800 break;
7801 }
7802
7803 qla4xxx_convert_param_ddb(fw_ddb_entry, tmp_tddb, NULL);
7804
7805 status = qla4xxx_compare_tuple_ddb(ha, flash_tddb, tmp_tddb,
7806 true);
7807 if (status == QLA_SUCCESS) {
7808 ret = qla4xxx_sysfs_ddb_logout_sid(ddb_entry->sess);
7809 break;
7810 }
7811 }
7812
7813 if (idx == MAX_DDB_ENTRIES)
7814 ret = -ESRCH;
7815
7816exit_ddb_logout:
7817 if (flash_tddb)
7818 vfree(flash_tddb);
7819 if (tmp_tddb)
7820 vfree(tmp_tddb);
7821 if (fw_ddb_entry)
7822 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
7823
7824 return ret;
7825}
7826
7827static int
7828qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session *fnode_sess,
7829 int param, char *buf)
7830{
7831 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
7832 struct scsi_qla_host *ha = to_qla_host(shost);
7833 struct iscsi_bus_flash_conn *fnode_conn;
7834 struct ql4_chap_table chap_tbl;
7835 struct device *dev;
a2f76636 7836 int parent_type;
1e9e2be3
AC		 7837 int rc = 0;
7838
8526cb11 7839 dev = iscsi_find_flashnode_conn(fnode_sess);
1e9e2be3
AC		 7840 if (!dev)
7841 return -EIO;
7842
7843 fnode_conn = iscsi_dev_to_flash_conn(dev);
7844
7845 switch (param) {
7846 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6:
7847 rc = sprintf(buf, "%u\n", fnode_conn->is_fw_assigned_ipv6);
7848 break;
7849 case ISCSI_FLASHNODE_PORTAL_TYPE:
7850 rc = sprintf(buf, "%s\n", fnode_sess->portal_type);
7851 break;
7852 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE:
7853 rc = sprintf(buf, "%u\n", fnode_sess->auto_snd_tgt_disable);
7854 break;
7855 case ISCSI_FLASHNODE_DISCOVERY_SESS:
7856 rc = sprintf(buf, "%u\n", fnode_sess->discovery_sess);
7857 break;
7858 case ISCSI_FLASHNODE_ENTRY_EN:
7859 rc = sprintf(buf, "%u\n", fnode_sess->entry_state);
7860 break;
7861 case ISCSI_FLASHNODE_HDR_DGST_EN:
7862 rc = sprintf(buf, "%u\n", fnode_conn->hdrdgst_en);
7863 break;
7864 case ISCSI_FLASHNODE_DATA_DGST_EN:
7865 rc = sprintf(buf, "%u\n", fnode_conn->datadgst_en);
7866 break;
7867 case ISCSI_FLASHNODE_IMM_DATA_EN:
7868 rc = sprintf(buf, "%u\n", fnode_sess->imm_data_en);
7869 break;
7870 case ISCSI_FLASHNODE_INITIAL_R2T_EN:
7871 rc = sprintf(buf, "%u\n", fnode_sess->initial_r2t_en);
7872 break;
7873 case ISCSI_FLASHNODE_DATASEQ_INORDER:
7874 rc = sprintf(buf, "%u\n", fnode_sess->dataseq_inorder_en);
7875 break;
7876 case ISCSI_FLASHNODE_PDU_INORDER:
7877 rc = sprintf(buf, "%u\n", fnode_sess->pdu_inorder_en);
7878 break;
7879 case ISCSI_FLASHNODE_CHAP_AUTH_EN:
7880 rc = sprintf(buf, "%u\n", fnode_sess->chap_auth_en);
7881 break;
7882 case ISCSI_FLASHNODE_SNACK_REQ_EN:
7883 rc = sprintf(buf, "%u\n", fnode_conn->snack_req_en);
7884 break;
7885 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN:
7886 rc = sprintf(buf, "%u\n", fnode_sess->discovery_logout_en);
7887 break;
7888 case ISCSI_FLASHNODE_BIDI_CHAP_EN:
7889 rc = sprintf(buf, "%u\n", fnode_sess->bidi_chap_en);
7890 break;
7891 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL:
7892 rc = sprintf(buf, "%u\n", fnode_sess->discovery_auth_optional);
7893 break;
7894 case ISCSI_FLASHNODE_ERL:
7895 rc = sprintf(buf, "%u\n", fnode_sess->erl);
7896 break;
7897 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT:
7898 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_stat);
7899 break;
7900 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE:
7901 rc = sprintf(buf, "%u\n", fnode_conn->tcp_nagle_disable);
7902 break;
7903 case ISCSI_FLASHNODE_TCP_WSF_DISABLE:
7904 rc = sprintf(buf, "%u\n", fnode_conn->tcp_wsf_disable);
7905 break;
7906 case ISCSI_FLASHNODE_TCP_TIMER_SCALE:
7907 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timer_scale);
7908 break;
7909 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN:
7910 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_en);
7911 break;
7912 case ISCSI_FLASHNODE_IP_FRAG_DISABLE:
7913 rc = sprintf(buf, "%u\n", fnode_conn->fragment_disable);
7914 break;
7915 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH:
7916 rc = sprintf(buf, "%u\n", fnode_conn->max_recv_dlength);
7917 break;
7918 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH:
7919 rc = sprintf(buf, "%u\n", fnode_conn->max_xmit_dlength);
7920 break;
7921 case ISCSI_FLASHNODE_FIRST_BURST:
7922 rc = sprintf(buf, "%u\n", fnode_sess->first_burst);
7923 break;
7924 case ISCSI_FLASHNODE_DEF_TIME2WAIT:
7925 rc = sprintf(buf, "%u\n", fnode_sess->time2wait);
7926 break;
7927 case ISCSI_FLASHNODE_DEF_TIME2RETAIN:
7928 rc = sprintf(buf, "%u\n", fnode_sess->time2retain);
7929 break;
7930 case ISCSI_FLASHNODE_MAX_R2T:
7931 rc = sprintf(buf, "%u\n", fnode_sess->max_r2t);
7932 break;
7933 case ISCSI_FLASHNODE_KEEPALIVE_TMO:
7934 rc = sprintf(buf, "%u\n", fnode_conn->keepalive_timeout);
7935 break;
7936 case ISCSI_FLASHNODE_ISID:
d1d81bd0 7937 rc = sprintf(buf, "%pm\n", fnode_sess->isid);
1e9e2be3
AC		 7938 break;
7939 case ISCSI_FLASHNODE_TSID:
7940 rc = sprintf(buf, "%u\n", fnode_sess->tsid);
7941 break;
7942 case ISCSI_FLASHNODE_PORT:
7943 rc = sprintf(buf, "%d\n", fnode_conn->port);
7944 break;
7945 case ISCSI_FLASHNODE_MAX_BURST:
7946 rc = sprintf(buf, "%u\n", fnode_sess->max_burst);
7947 break;
7948 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO:
7949 rc = sprintf(buf, "%u\n",
7950 fnode_sess->default_taskmgmt_timeout);
7951 break;
7952 case ISCSI_FLASHNODE_IPADDR:
c962c18b 7953 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
1e9e2be3
AC		 7954 rc = sprintf(buf, "%pI6\n", fnode_conn->ipaddress);
7955 else
7956 rc = sprintf(buf, "%pI4\n", fnode_conn->ipaddress);
7957 break;
7958 case ISCSI_FLASHNODE_ALIAS:
7959 if (fnode_sess->targetalias)
7960 rc = sprintf(buf, "%s\n", fnode_sess->targetalias);
7961 else
7962 rc = sprintf(buf, "\n");
7963 break;
7964 case ISCSI_FLASHNODE_REDIRECT_IPADDR:
c962c18b 7965 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
1e9e2be3
AC		 7966 rc = sprintf(buf, "%pI6\n",
7967 fnode_conn->redirect_ipaddr);
7968 else
7969 rc = sprintf(buf, "%pI4\n",
7970 fnode_conn->redirect_ipaddr);
7971 break;
7972 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE:
7973 rc = sprintf(buf, "%u\n", fnode_conn->max_segment_size);
7974 break;
7975 case ISCSI_FLASHNODE_LOCAL_PORT:
7976 rc = sprintf(buf, "%u\n", fnode_conn->local_port);
7977 break;
7978 case ISCSI_FLASHNODE_IPV4_TOS:
7979 rc = sprintf(buf, "%u\n", fnode_conn->ipv4_tos);
7980 break;
7981 case ISCSI_FLASHNODE_IPV6_TC:
c962c18b 7982 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
1e9e2be3
AC		 7983 rc = sprintf(buf, "%u\n",
7984 fnode_conn->ipv6_traffic_class);
7985 else
7986 rc = sprintf(buf, "\n");
7987 break;
7988 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL:
7989 rc = sprintf(buf, "%u\n", fnode_conn->ipv6_flow_label);
7990 break;
7991 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6:
c962c18b 7992 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))
1e9e2be3
AC		 7993 rc = sprintf(buf, "%pI6\n",
7994 fnode_conn->link_local_ipv6_addr);
7995 else
7996 rc = sprintf(buf, "\n");
7997 break;
7998 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX:
a2f76636 7999 rc = sprintf(buf, "%u\n", fnode_sess->discovery_parent_idx);
1e9e2be3
AC		 8000 break;
8001 case ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE:
8002 if (fnode_sess->discovery_parent_type == DDB_ISNS)
8003 parent_type = ISCSI_DISC_PARENT_ISNS;
8004 else if (fnode_sess->discovery_parent_type == DDB_NO_LINK)
8005 parent_type = ISCSI_DISC_PARENT_UNKNOWN;
b6130cea 8006 else if (fnode_sess->discovery_parent_type < MAX_DDB_ENTRIES)
1e9e2be3
AC		 8007 parent_type = ISCSI_DISC_PARENT_SENDTGT;
8008 else
8009 parent_type = ISCSI_DISC_PARENT_UNKNOWN;
8010
8011 rc = sprintf(buf, "%s\n",
8012 iscsi_get_discovery_parent_name(parent_type));
8013 break;
8014 case ISCSI_FLASHNODE_NAME:
8015 if (fnode_sess->targetname)
8016 rc = sprintf(buf, "%s\n", fnode_sess->targetname);
8017 else
8018 rc = sprintf(buf, "\n");
8019 break;
8020 case ISCSI_FLASHNODE_TPGT:
8021 rc = sprintf(buf, "%u\n", fnode_sess->tpgt);
8022 break;
8023 case ISCSI_FLASHNODE_TCP_XMIT_WSF:
8024 rc = sprintf(buf, "%u\n", fnode_conn->tcp_xmit_wsf);
8025 break;
8026 case ISCSI_FLASHNODE_TCP_RECV_WSF:
8027 rc = sprintf(buf, "%u\n", fnode_conn->tcp_recv_wsf);
8028 break;
8029 case ISCSI_FLASHNODE_CHAP_OUT_IDX:
8030 rc = sprintf(buf, "%u\n", fnode_sess->chap_out_idx);
8031 break;
8032 case ISCSI_FLASHNODE_USERNAME:
8033 if (fnode_sess->chap_auth_en) {
8034 qla4xxx_get_uni_chap_at_index(ha,
8035 chap_tbl.name,
8036 chap_tbl.secret,
8037 fnode_sess->chap_out_idx);
8038 rc = sprintf(buf, "%s\n", chap_tbl.name);
8039 } else {
8040 rc = sprintf(buf, "\n");
8041 }
8042 break;
8043 case ISCSI_FLASHNODE_PASSWORD:
8044 if (fnode_sess->chap_auth_en) {
8045 qla4xxx_get_uni_chap_at_index(ha,
8046 chap_tbl.name,
8047 chap_tbl.secret,
8048 fnode_sess->chap_out_idx);
8049 rc = sprintf(buf, "%s\n", chap_tbl.secret);
8050 } else {
8051 rc = sprintf(buf, "\n");
8052 }
8053 break;
8054 case ISCSI_FLASHNODE_STATSN:
8055 rc = sprintf(buf, "%u\n", fnode_conn->statsn);
8056 break;
8057 case ISCSI_FLASHNODE_EXP_STATSN:
8058 rc = sprintf(buf, "%u\n", fnode_conn->exp_statsn);
8059 break;
8060 case ISCSI_FLASHNODE_IS_BOOT_TGT:
8061 rc = sprintf(buf, "%u\n", fnode_sess->is_boot_target);
8062 break;
8063 default:
8064 rc = -ENOSYS;
8065 break;
8066 }
8526cb11
MC		 8067
8068 put_device(dev);
1e9e2be3
AC		 8069 return rc;
8070}
8071
8072/**
8073 * qla4xxx_sysfs_ddb_set_param - Set parameter for firmware DDB entry
8074 * @fnode_sess: pointer to session attrs of flash ddb entry
8075 * @fnode_conn: pointer to connection attrs of flash ddb entry
8076 * @data: Parameters and their values to update
8077 * @len: len of data
8078 *
8079 * This sets the parameter of flash ddb entry and writes them to flash
8080 **/
8081static int
8082qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess,
8083 struct iscsi_bus_flash_conn *fnode_conn,
8084 void *data, int len)
8085{
8086 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
8087 struct scsi_qla_host *ha = to_qla_host(shost);
1e9e2be3 8088 struct iscsi_flashnode_param_info *fnode_param;
244c079b 8089 struct ql4_chap_table chap_tbl;
1e9e2be3 8090 struct nlattr *attr;
244c079b 8091 uint16_t chap_out_idx = INVALID_ENTRY;
1e9e2be3
AC		 8092 int rc = QLA_ERROR;
8093 uint32_t rem = len;
8094
244c079b 8095 memset((void *)&chap_tbl, 0, sizeof(chap_tbl));
1e9e2be3
AC		 8096 nla_for_each_attr(attr, data, len, rem) {
8097 fnode_param = nla_data(attr);
8098
8099 switch (fnode_param->param) {
8100 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6:
8101 fnode_conn->is_fw_assigned_ipv6 = fnode_param->value[0];
8102 break;
8103 case ISCSI_FLASHNODE_PORTAL_TYPE:
8104 memcpy(fnode_sess->portal_type, fnode_param->value,
8105 strlen(fnode_sess->portal_type));
8106 break;
8107 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE:
8108 fnode_sess->auto_snd_tgt_disable =
8109 fnode_param->value[0];
8110 break;
8111 case ISCSI_FLASHNODE_DISCOVERY_SESS:
8112 fnode_sess->discovery_sess = fnode_param->value[0];
8113 break;
8114 case ISCSI_FLASHNODE_ENTRY_EN:
8115 fnode_sess->entry_state = fnode_param->value[0];
8116 break;
8117 case ISCSI_FLASHNODE_HDR_DGST_EN:
8118 fnode_conn->hdrdgst_en = fnode_param->value[0];
8119 break;
8120 case ISCSI_FLASHNODE_DATA_DGST_EN:
8121 fnode_conn->datadgst_en = fnode_param->value[0];
8122 break;
8123 case ISCSI_FLASHNODE_IMM_DATA_EN:
8124 fnode_sess->imm_data_en = fnode_param->value[0];
8125 break;
8126 case ISCSI_FLASHNODE_INITIAL_R2T_EN:
8127 fnode_sess->initial_r2t_en = fnode_param->value[0];
8128 break;
8129 case ISCSI_FLASHNODE_DATASEQ_INORDER:
8130 fnode_sess->dataseq_inorder_en = fnode_param->value[0];
8131 break;
8132 case ISCSI_FLASHNODE_PDU_INORDER:
8133 fnode_sess->pdu_inorder_en = fnode_param->value[0];
8134 break;
8135 case ISCSI_FLASHNODE_CHAP_AUTH_EN:
8136 fnode_sess->chap_auth_en = fnode_param->value[0];
244c079b
AC		 8137 /* Invalidate chap index if chap auth is disabled */
8138 if (!fnode_sess->chap_auth_en)
8139 fnode_sess->chap_out_idx = INVALID_ENTRY;
8140
1e9e2be3
AC		 8141 break;
8142 case ISCSI_FLASHNODE_SNACK_REQ_EN:
8143 fnode_conn->snack_req_en = fnode_param->value[0];
8144 break;
8145 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN:
8146 fnode_sess->discovery_logout_en = fnode_param->value[0];
8147 break;
8148 case ISCSI_FLASHNODE_BIDI_CHAP_EN:
8149 fnode_sess->bidi_chap_en = fnode_param->value[0];
8150 break;
8151 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL:
8152 fnode_sess->discovery_auth_optional =
8153 fnode_param->value[0];
8154 break;
8155 case ISCSI_FLASHNODE_ERL:
8156 fnode_sess->erl = fnode_param->value[0];
8157 break;
8158 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT:
8159 fnode_conn->tcp_timestamp_stat = fnode_param->value[0];
8160 break;
8161 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE:
8162 fnode_conn->tcp_nagle_disable = fnode_param->value[0];
8163 break;
8164 case ISCSI_FLASHNODE_TCP_WSF_DISABLE:
8165 fnode_conn->tcp_wsf_disable = fnode_param->value[0];
8166 break;
8167 case ISCSI_FLASHNODE_TCP_TIMER_SCALE:
8168 fnode_conn->tcp_timer_scale = fnode_param->value[0];
8169 break;
8170 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN:
8171 fnode_conn->tcp_timestamp_en = fnode_param->value[0];
8172 break;
8173 case ISCSI_FLASHNODE_IP_FRAG_DISABLE:
8174 fnode_conn->fragment_disable = fnode_param->value[0];
8175 break;
8176 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH:
8177 fnode_conn->max_recv_dlength =
8178 *(unsigned *)fnode_param->value;
8179 break;
8180 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH:
8181 fnode_conn->max_xmit_dlength =
8182 *(unsigned *)fnode_param->value;
8183 break;
8184 case ISCSI_FLASHNODE_FIRST_BURST:
8185 fnode_sess->first_burst =
8186 *(unsigned *)fnode_param->value;
8187 break;
8188 case ISCSI_FLASHNODE_DEF_TIME2WAIT:
8189 fnode_sess->time2wait = *(uint16_t *)fnode_param->value;
8190 break;
8191 case ISCSI_FLASHNODE_DEF_TIME2RETAIN:
8192 fnode_sess->time2retain =
8193 *(uint16_t *)fnode_param->value;
8194 break;
8195 case ISCSI_FLASHNODE_MAX_R2T:
8196 fnode_sess->max_r2t =
8197 *(uint16_t *)fnode_param->value;
8198 break;
8199 case ISCSI_FLASHNODE_KEEPALIVE_TMO:
8200 fnode_conn->keepalive_timeout =
8201 *(uint16_t *)fnode_param->value;
8202 break;
8203 case ISCSI_FLASHNODE_ISID:
8204 memcpy(fnode_sess->isid, fnode_param->value,
8205 sizeof(fnode_sess->isid));
8206 break;
8207 case ISCSI_FLASHNODE_TSID:
8208 fnode_sess->tsid = *(uint16_t *)fnode_param->value;
8209 break;
8210 case ISCSI_FLASHNODE_PORT:
8211 fnode_conn->port = *(uint16_t *)fnode_param->value;
8212 break;
8213 case ISCSI_FLASHNODE_MAX_BURST:
8214 fnode_sess->max_burst = *(unsigned *)fnode_param->value;
8215 break;
8216 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO:
8217 fnode_sess->default_taskmgmt_timeout =
8218 *(uint16_t *)fnode_param->value;
8219 break;
8220 case ISCSI_FLASHNODE_IPADDR:
8221 memcpy(fnode_conn->ipaddress, fnode_param->value,
8222 IPv6_ADDR_LEN);
8223 break;
8224 case ISCSI_FLASHNODE_ALIAS:
8225 rc = iscsi_switch_str_param(&fnode_sess->targetalias,
8226 (char *)fnode_param->value);
8227 break;
8228 case ISCSI_FLASHNODE_REDIRECT_IPADDR:
8229 memcpy(fnode_conn->redirect_ipaddr, fnode_param->value,
8230 IPv6_ADDR_LEN);
8231 break;
8232 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE:
8233 fnode_conn->max_segment_size =
8234 *(unsigned *)fnode_param->value;
8235 break;
8236 case ISCSI_FLASHNODE_LOCAL_PORT:
8237 fnode_conn->local_port =
8238 *(uint16_t *)fnode_param->value;
8239 break;
8240 case ISCSI_FLASHNODE_IPV4_TOS:
8241 fnode_conn->ipv4_tos = fnode_param->value[0];
8242 break;
8243 case ISCSI_FLASHNODE_IPV6_TC:
8244 fnode_conn->ipv6_traffic_class = fnode_param->value[0];
8245 break;
8246 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL:
8247 fnode_conn->ipv6_flow_label = fnode_param->value[0];
8248 break;
8249 case ISCSI_FLASHNODE_NAME:
8250 rc = iscsi_switch_str_param(&fnode_sess->targetname,
8251 (char *)fnode_param->value);
8252 break;
8253 case ISCSI_FLASHNODE_TPGT:
8254 fnode_sess->tpgt = *(uint16_t *)fnode_param->value;
8255 break;
8256 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6:
8257 memcpy(fnode_conn->link_local_ipv6_addr,
8258 fnode_param->value, IPv6_ADDR_LEN);
8259 break;
65560166
AC		 8260 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX:
8261 fnode_sess->discovery_parent_idx =
1e9e2be3
AC		 8262 *(uint16_t *)fnode_param->value;
8263 break;
8264 case ISCSI_FLASHNODE_TCP_XMIT_WSF:
8265 fnode_conn->tcp_xmit_wsf =
8266 *(uint8_t *)fnode_param->value;
8267 break;
8268 case ISCSI_FLASHNODE_TCP_RECV_WSF:
8269 fnode_conn->tcp_recv_wsf =
8270 *(uint8_t *)fnode_param->value;
8271 break;
8272 case ISCSI_FLASHNODE_STATSN:
8273 fnode_conn->statsn = *(uint32_t *)fnode_param->value;
8274 break;
8275 case ISCSI_FLASHNODE_EXP_STATSN:
8276 fnode_conn->exp_statsn =
8277 *(uint32_t *)fnode_param->value;
8278 break;
244c079b
AC		 8279 case ISCSI_FLASHNODE_CHAP_OUT_IDX:
8280 chap_out_idx = *(uint16_t *)fnode_param->value;
8281 if (!qla4xxx_get_uni_chap_at_index(ha,
8282 chap_tbl.name,
8283 chap_tbl.secret,
8284 chap_out_idx)) {
8285 fnode_sess->chap_out_idx = chap_out_idx;
8286 /* Enable chap auth if chap index is valid */
8287 fnode_sess->chap_auth_en = QL4_PARAM_ENABLE;
8288 }
8289 break;
1e9e2be3
AC		 8290 default:
8291 ql4_printk(KERN_ERR, ha,
8292 "%s: No such sysfs attribute\n", __func__);
8293 rc = -ENOSYS;
8294 goto exit_set_param;
8295 }
8296 }
8297
8298 rc = qla4xxx_sysfs_ddb_apply(fnode_sess, fnode_conn);
8299
8300exit_set_param:
8301 return rc;
8302}
8303
8304/**
8305 * qla4xxx_sysfs_ddb_delete - Delete firmware DDB entry
8306 * @fnode_sess: pointer to session attrs of flash ddb entry
8307 *
8308 * This invalidates the flash ddb entry at the given index
8309 **/
8310static int qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess)
8311{
8312 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
8313 struct scsi_qla_host *ha = to_qla_host(shost);
8314 uint32_t dev_db_start_offset;
8315 uint32_t dev_db_end_offset;
8316 struct dev_db_entry *fw_ddb_entry = NULL;
8317 dma_addr_t fw_ddb_entry_dma;
8318 uint16_t *ddb_cookie = NULL;
b6130cea 8319 size_t ddb_size = 0;
039acc1e 8320 void *pddb = NULL;
1e9e2be3
AC		 8321 int target_id;
8322 int rc = 0;
8323
1e9e2be3
AC		 8324 if (fnode_sess->is_boot_target) {
8325 rc = -EPERM;
8326 DEBUG2(ql4_printk(KERN_ERR, ha,
8327 "%s: Deletion of boot target entry is not permitted.\n",
8328 __func__));
8329 goto exit_ddb_del;
8330 }
8331
8332 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT)
8333 goto sysfs_ddb_del;
8334
1e9e2be3
AC		 8335 if (is_qla40XX(ha)) {
8336 dev_db_start_offset = FLASH_OFFSET_DB_INFO;
039acc1e
AC		 8337 dev_db_end_offset = FLASH_OFFSET_DB_END;
8338 dev_db_start_offset += (fnode_sess->target_id *
8339 sizeof(*fw_ddb_entry));
8340 ddb_size = sizeof(*fw_ddb_entry);
1e9e2be3
AC		 8341 } else {
8342 dev_db_start_offset = FLASH_RAW_ACCESS_ADDR +
8343 (ha->hw.flt_region_ddb << 2);
8344 /* flt_ddb_size is DDB table size for both ports
8345 * so divide it by 2 to calculate the offset for second port
8346 */
8347 if (ha->port_num == 1)
8348 dev_db_start_offset += (ha->hw.flt_ddb_size / 2);
1e9e2be3 8349
039acc1e
AC		 8350 dev_db_end_offset = dev_db_start_offset +
8351 (ha->hw.flt_ddb_size / 2);
8352
8353 dev_db_start_offset += (fnode_sess->target_id *
8354 sizeof(*fw_ddb_entry));
1bcb5619 8355 dev_db_start_offset += offsetof(struct dev_db_entry, cookie);
039acc1e
AC		 8356
8357 ddb_size = sizeof(*ddb_cookie);
8358 }
1e9e2be3
AC		 8359
8360 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: start offset=%u, end offset=%u\n",
8361 __func__, dev_db_start_offset, dev_db_end_offset));
8362
8363 if (dev_db_start_offset > dev_db_end_offset) {
8364 rc = -EIO;
8365 DEBUG2(ql4_printk(KERN_ERR, ha, "%s:Invalid DDB index %u\n",
8366 __func__, fnode_sess->target_id));
8367 goto exit_ddb_del;
8368 }
8369
039acc1e
AC		 8370 pddb = dma_alloc_coherent(&ha->pdev->dev, ddb_size,
8371 &fw_ddb_entry_dma, GFP_KERNEL);
8372 if (!pddb) {
8373 rc = -ENOMEM;
8374 DEBUG2(ql4_printk(KERN_ERR, ha,
8375 "%s: Unable to allocate dma buffer\n",
8376 __func__));
8377 goto exit_ddb_del;
8378 }
8379
8380 if (is_qla40XX(ha)) {
8381 fw_ddb_entry = pddb;
8382 memset(fw_ddb_entry, 0, ddb_size);
8383 ddb_cookie = &fw_ddb_entry->cookie;
8384 } else {
8385 ddb_cookie = pddb;
8386 }
8387
1e9e2be3
AC		 8388 /* invalidate the cookie */
8389 *ddb_cookie = 0xFFEE;
8390 qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset,
039acc1e 8391 ddb_size, FLASH_OPT_RMW_COMMIT);
1e9e2be3
AC		 8392
8393sysfs_ddb_del:
8394 target_id = fnode_sess->target_id;
8395 iscsi_destroy_flashnode_sess(fnode_sess);
8396 ql4_printk(KERN_INFO, ha,
8397 "%s: session and conn entries for flashnode %u of host %lu deleted\n",
8398 __func__, target_id, ha->host_no);
8399exit_ddb_del:
039acc1e
AC		 8400 if (pddb)
8401 dma_free_coherent(&ha->pdev->dev, ddb_size, pddb,
8402 fw_ddb_entry_dma);
1e9e2be3
AC		 8403 return rc;
8404}
8405
8406/**
8407 * qla4xxx_sysfs_ddb_export - Create sysfs entries for firmware DDBs
8408 * @ha: pointer to adapter structure
8409 *
8410 * Export the firmware DDB for all send targets and normal targets to sysfs.
8411 **/
906cbf3d 8412int qla4xxx_sysfs_ddb_export(struct scsi_qla_host *ha)
1e9e2be3
AC		 8413{
8414 struct dev_db_entry *fw_ddb_entry = NULL;
8415 dma_addr_t fw_ddb_entry_dma;
8416 uint16_t max_ddbs;
8417 uint16_t idx = 0;
8418 int ret = QLA_SUCCESS;
8419
8420 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev,
8421 sizeof(*fw_ddb_entry),
8422 &fw_ddb_entry_dma, GFP_KERNEL);
8423 if (!fw_ddb_entry) {
8424 DEBUG2(ql4_printk(KERN_ERR, ha,
8425 "%s: Unable to allocate dma buffer\n",
8426 __func__));
8427 return -ENOMEM;
8428 }
8429
a957a7d7 8430 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES :
1e9e2be3
AC		 8431 MAX_DEV_DB_ENTRIES;
8432
8433 for (idx = 0; idx < max_ddbs; idx++) {
8434 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry, fw_ddb_entry_dma,
8435 idx))
8436 continue;
8437
8438 ret = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 0);
8439 if (ret) {
8440 ret = -EIO;
8441 break;
8442 }
8443 }
8444
8445 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry,
8446 fw_ddb_entry_dma);
8447
8448 return ret;
8449}
8450
8451static void qla4xxx_sysfs_ddb_remove(struct scsi_qla_host *ha)
8452{
8453 iscsi_destroy_all_flashnode(ha->host);
8454}
8455
8456/**
8457 * qla4xxx_build_ddb_list - Build ddb list and setup sessions
8458 * @ha: pointer to adapter structure
8459 * @is_reset: Is this init path or reset path
8460 *
8461 * Create a list of sendtargets (st) from firmware DDBs, issue send targets
8462 * using connection open, then create the list of normal targets (nt)
8463 * from firmware DDBs. Based on the list of nt setup session and connection
8464 * objects.
8465 **/
8466void qla4xxx_build_ddb_list(struct scsi_qla_host *ha, int is_reset)
8467{
8468 uint16_t tmo = 0;
8469 struct list_head list_st, list_nt;
8470 struct qla_ddb_index *st_ddb_idx, *st_ddb_idx_tmp;
8471 unsigned long wtime;
8472
8473 if (!test_bit(AF_LINK_UP, &ha->flags)) {
8474 set_bit(AF_BUILD_DDB_LIST, &ha->flags);
8475 ha->is_reset = is_reset;
8476 return;
8477 }
8478
8479 INIT_LIST_HEAD(&list_st);
8480 INIT_LIST_HEAD(&list_nt);
8481
8482 qla4xxx_build_st_list(ha, &list_st);
8483
8484 /* Before issuing conn open mbox, ensure all IPs states are configured
8485 * Note, conn open fails if IPs are not configured
8486 */
8487 qla4xxx_wait_for_ip_configuration(ha);
8488
8489 /* Go thru the STs and fire the sendtargets by issuing conn open mbx */
8490 list_for_each_entry_safe(st_ddb_idx, st_ddb_idx_tmp, &list_st, list) {
8491 qla4xxx_conn_open(ha, st_ddb_idx->fw_ddb_idx);
8492 }
8493
8494 /* Wait to ensure all sendtargets are done for min 12 sec wait */
8495 tmo = ((ha->def_timeout > LOGIN_TOV) &&
8496 (ha->def_timeout < LOGIN_TOV * 10) ?
8497 ha->def_timeout : LOGIN_TOV);
8498
8499 DEBUG2(ql4_printk(KERN_INFO, ha,
8500 "Default time to wait for build ddb %d\n", tmo));
8501
8502 wtime = jiffies + (HZ * tmo);
8503 do {
8504 if (list_empty(&list_st))
8505 break;
8506
8507 qla4xxx_remove_failed_ddb(ha, &list_st);
8508 schedule_timeout_uninterruptible(HZ / 10);
8509 } while (time_after(wtime, jiffies));
8510
1e9e2be3 8511
ad8bd45e 8512 qla4xxx_build_nt_list(ha, &list_nt, &list_st, is_reset);
1e9e2be3 8513
ad8bd45e 8514 qla4xxx_free_ddb_list(&list_st);
1e9e2be3
AC		 8515 qla4xxx_free_ddb_list(&list_nt);
8516
8517 qla4xxx_free_ddb_index(ha);
8518}
8519
8520/**
8521 * qla4xxx_wait_login_resp_boot_tgt - Wait for iSCSI boot target login
8522 * response.
8523 * @ha: pointer to adapter structure
8524 *
8525 * When the boot entry is normal iSCSI target then DF_BOOT_TGT flag will be
8526 * set in DDB and we will wait for login response of boot targets during
8527 * probe.
8528 **/
8529static void qla4xxx_wait_login_resp_boot_tgt(struct scsi_qla_host *ha)
8530{
8531 struct ddb_entry *ddb_entry;
8532 struct dev_db_entry *fw_ddb_entry = NULL;
8533 dma_addr_t fw_ddb_entry_dma;
8534 unsigned long wtime;
8535 uint32_t ddb_state;
8536 int max_ddbs, idx, ret;
8537
8538 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
8539 MAX_DEV_DB_ENTRIES;
8540
8541 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8542 &fw_ddb_entry_dma, GFP_KERNEL);
8543 if (!fw_ddb_entry) {
8544 ql4_printk(KERN_ERR, ha,
8545 "%s: Unable to allocate dma buffer\n", __func__);
8546 goto exit_login_resp;
8547 }
8548
8549 wtime = jiffies + (HZ * BOOT_LOGIN_RESP_TOV);
8550
8551 for (idx = 0; idx < max_ddbs; idx++) {
8552 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
8553 if (ddb_entry == NULL)
8554 continue;
8555
8556 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) {
8557 DEBUG2(ql4_printk(KERN_INFO, ha,
8558 "%s: DDB index [%d]\n", __func__,
8559 ddb_entry->fw_ddb_index));
8560 do {
8561 ret = qla4xxx_get_fwddb_entry(ha,
8562 ddb_entry->fw_ddb_index,
8563 fw_ddb_entry, fw_ddb_entry_dma,
8564 NULL, NULL, &ddb_state, NULL,
8565 NULL, NULL);
8566 if (ret == QLA_ERROR)
8567 goto exit_login_resp;
8568
8569 if ((ddb_state == DDB_DS_SESSION_ACTIVE) ||
8570 (ddb_state == DDB_DS_SESSION_FAILED))
8571 break;
8572
8573 schedule_timeout_uninterruptible(HZ);
8574
8575 } while ((time_after(wtime, jiffies)));
8576
8577 if (!time_after(wtime, jiffies)) {
8578 DEBUG2(ql4_printk(KERN_INFO, ha,
8579 "%s: Login response wait timer expired\n",
8580 __func__));
8581 goto exit_login_resp;
8582 }
8583 }
8584 }
8585
8586exit_login_resp:
8587 if (fw_ddb_entry)
8588 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8589 fw_ddb_entry, fw_ddb_entry_dma);
8590}
8591
8592/**
8593 * qla4xxx_probe_adapter - callback function to probe HBA
8594 * @pdev: pointer to pci_dev structure
8595 * @pci_device_id: pointer to pci_device entry
8596 *
8597 * This routine will probe for Qlogic 4xxx iSCSI host adapters.
8598 * It returns zero if successful. It also initializes all data necessary for
8599 * the driver.
8600 **/
8601static int qla4xxx_probe_adapter(struct pci_dev *pdev,
8602 const struct pci_device_id *ent)
8603{
8604 int ret = -ENODEV, status;
8605 struct Scsi_Host *host;
8606 struct scsi_qla_host *ha;
8607 uint8_t init_retry_count = 0;
8608 char buf[34];
8609 struct qla4_8xxx_legacy_intr_set *nx_legacy_intr;
8610 uint32_t dev_state;
8611
8612 if (pci_enable_device(pdev))
8613 return -1;
8614
8615 host = iscsi_host_alloc(&qla4xxx_driver_template, sizeof(*ha), 0);
8616 if (host == NULL) {
afaf5a2d
DS		 8617 printk(KERN_WARNING
8618 "qla4xxx: Couldn't allocate host from scsi layer!\n");
8619 goto probe_disable_device;
8620 }
8621
8622 /* Clear our data area */
b3a271a9 8623 ha = to_qla_host(host);
afaf5a2d
DS		 8624 memset(ha, 0, sizeof(*ha));
8625
8626 /* Save the information from PCI BIOS. */
8627 ha->pdev = pdev;
8628 ha->host = host;
8629 ha->host_no = host->host_no;
6e7b4292 8630 ha->func_num = PCI_FUNC(ha->pdev->devfn);
afaf5a2d 8631
2232be0d
LC		 8632 pci_enable_pcie_error_reporting(pdev);
8633
f4f5df23
VC		 8634 /* Setup Runtime configurable options */
8635 if (is_qla8022(ha)) {
7664a1fd 8636 ha->isp_ops = &qla4_82xx_isp_ops;
33693c7a 8637 ha->reg_tbl = (uint32_t *) qla4_82xx_reg_tbl;
f4f5df23
VC		 8638 ha->qdr_sn_window = -1;
8639 ha->ddr_mn_window = -1;
8640 ha->curr_window = 255;
f4f5df23
VC		 8641 nx_legacy_intr = &legacy_intr[ha->func_num];
8642 ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit;
8643 ha->nx_legacy_intr.tgt_status_reg =
8644 nx_legacy_intr->tgt_status_reg;
8645 ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg;
8646 ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg;
b37ca418 8647 } else if (is_qla8032(ha) || is_qla8042(ha)) {
6e7b4292
VC		 8648 ha->isp_ops = &qla4_83xx_isp_ops;
8649 ha->reg_tbl = (uint32_t *)qla4_83xx_reg_tbl;
f4f5df23
VC		 8650 } else {
8651 ha->isp_ops = &qla4xxx_isp_ops;
8652 }
8653
6e7b4292
VC		 8654 if (is_qla80XX(ha)) {
8655 rwlock_init(&ha->hw_lock);
8656 ha->pf_bit = ha->func_num << 16;
8657 /* Set EEH reset type to fundamental if required by hba */
2232be0d 8658 pdev->needs_freset = 1;
6e7b4292 8659 }
2232be0d 8660
afaf5a2d 8661 /* Configure PCI I/O space. */
f4f5df23 8662 ret = ha->isp_ops->iospace_config(ha);
afaf5a2d 8663 if (ret)
f4f5df23 8664 goto probe_failed_ioconfig;
afaf5a2d 8665
c2660df3 8666 ql4_printk(KERN_INFO, ha, "Found an ISP%04x, irq %d, iobase 0x%p\n",
afaf5a2d
DS		 8667 pdev->device, pdev->irq, ha->reg);
8668
8669 qla4xxx_config_dma_addressing(ha);
8670
8671 /* Initialize lists and spinlocks. */
afaf5a2d
DS		 8672 INIT_LIST_HEAD(&ha->free_srb_q);
8673
8674 mutex_init(&ha->mbox_sem);
4549415a 8675 mutex_init(&ha->chap_sem);
f4f5df23 8676 init_completion(&ha->mbx_intr_comp);
95d31262 8677 init_completion(&ha->disable_acb_comp);
df86f771
VC		 8678 init_completion(&ha->idc_comp);
8679 init_completion(&ha->link_up_comp);
afaf5a2d
DS		 8680
8681 spin_lock_init(&ha->hardware_lock);
8e9157c8 8682 spin_lock_init(&ha->work_lock);
afaf5a2d 8683
ff884430
VC		 8684 /* Initialize work list */
8685 INIT_LIST_HEAD(&ha->work_list);
8686
afaf5a2d
DS		 8687 /* Allocate dma buffers */
8688 if (qla4xxx_mem_alloc(ha)) {
c2660df3
VC		 8689 ql4_printk(KERN_WARNING, ha,
8690 "[ERROR] Failed to allocate memory for adapter\n");
afaf5a2d
DS		 8691
8692 ret = -ENOMEM;
8693 goto probe_failed;
8694 }
8695
b3a271a9
MR		 8696 host->cmd_per_lun = 3;
8697 host->max_channel = 0;
8698 host->max_lun = MAX_LUNS - 1;
8699 host->max_id = MAX_TARGETS;
8700 host->max_cmd_len = IOCB_MAX_CDB_LEN;
8701 host->can_queue = MAX_SRBS ;
8702 host->transportt = qla4xxx_scsi_transport;
8703
b3a271a9
MR		 8704 pci_set_drvdata(pdev, ha);
8705
8706 ret = scsi_add_host(host, &pdev->dev);
8707 if (ret)
8708 goto probe_failed;
8709
6e7b4292
VC		 8710 if (is_qla80XX(ha))
8711 qla4_8xxx_get_flash_info(ha);
8712
b37ca418 8713 if (is_qla8032(ha) || is_qla8042(ha)) {
6e7b4292
VC		 8714 qla4_83xx_read_reset_template(ha);
8715 /*
8716 * NOTE: If ql4dontresethba==1, set IDC_CTRL DONTRESET_BIT0.
8717 * If DONRESET_BIT0 is set, drivers should not set dev_state
8718 * to NEED_RESET. But if NEED_RESET is set, drivers should
8719 * should honor the reset.
8720 */
8721 if (ql4xdontresethba == 1)
8722 qla4_83xx_set_idc_dontreset(ha);
8723 }
f4f5df23 8724
afaf5a2d
DS		 8725 /*
8726 * Initialize the Host adapter request/response queues and
8727 * firmware
8728 * NOTE: interrupts enabled upon successful completion
8729 */
13483730 8730 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER);
7977f825
PV		 8731
8732 /* Dont retry adapter initialization if IRQ allocation failed */
37418cc6 8733 if (is_qla80XX(ha) && (status == QLA_ERROR))
7977f825
PV		 8734 goto skip_retry_init;
8735
f4f5df23
VC		 8736 while ((!test_bit(AF_ONLINE, &ha->flags)) &&
8737 init_retry_count++ < MAX_INIT_RETRIES) {
f9880e76 8738
6e7b4292 8739 if (is_qla80XX(ha)) {
33693c7a
VC		 8740 ha->isp_ops->idc_lock(ha);
8741 dev_state = qla4_8xxx_rd_direct(ha,
e951aca1 8742 QLA8XXX_CRB_DEV_STATE);
33693c7a 8743 ha->isp_ops->idc_unlock(ha);
de8c72da 8744 if (dev_state == QLA8XXX_DEV_FAILED) {
f9880e76
PM		 8745 ql4_printk(KERN_WARNING, ha, "%s: don't retry "
8746 "initialize adapter. H/W is in failed state\n",
8747 __func__);
8748 break;
8749 }
8750 }
afaf5a2d
DS		 8751 DEBUG2(printk("scsi: %s: retrying adapter initialization "
8752 "(%d)\n", __func__, init_retry_count));
f4f5df23
VC		 8753
8754 if (ha->isp_ops->reset_chip(ha) == QLA_ERROR)
8755 continue;
8756
13483730 8757 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER);
37418cc6
NJ		 8758 if (is_qla80XX(ha) && (status == QLA_ERROR)) {
8759 if (qla4_8xxx_check_init_adapter_retry(ha) == QLA_ERROR)
8760 goto skip_retry_init;
8761 }
afaf5a2d 8762 }
f4f5df23 8763
7977f825 8764skip_retry_init:
f4f5df23 8765 if (!test_bit(AF_ONLINE, &ha->flags)) {
c2660df3 8766 ql4_printk(KERN_WARNING, ha, "Failed to initialize adapter\n");
afaf5a2d 8767
6e7b4292 8768 if ((is_qla8022(ha) && ql4xdontresethba) ||
b37ca418
VC		 8769 ((is_qla8032(ha) || is_qla8042(ha)) &&
8770 qla4_83xx_idc_dontreset(ha))) {
fe998527
LC		 8771 /* Put the device in failed state. */
8772 DEBUG2(printk(KERN_ERR "HW STATE: FAILED\n"));
33693c7a
VC		 8773 ha->isp_ops->idc_lock(ha);
8774 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
8775 QLA8XXX_DEV_FAILED);
8776 ha->isp_ops->idc_unlock(ha);
fe998527 8777 }
afaf5a2d 8778 ret = -ENODEV;
b3a271a9 8779 goto remove_host;
afaf5a2d
DS		 8780 }
8781
afaf5a2d
DS		 8782 /* Startup the kernel thread for this host adapter. */
8783 DEBUG2(printk("scsi: %s: Starting kernel thread for "
8784 "qla4xxx_dpc\n", __func__));
8785 sprintf(buf, "qla4xxx_%lu_dpc", ha->host_no);
8786 ha->dpc_thread = create_singlethread_workqueue(buf);
8787 if (!ha->dpc_thread) {
c2660df3 8788 ql4_printk(KERN_WARNING, ha, "Unable to start DPC thread!\n");
afaf5a2d 8789 ret = -ENODEV;
b3a271a9 8790 goto remove_host;
afaf5a2d 8791 }
c4028958 8792 INIT_WORK(&ha->dpc_work, qla4xxx_do_dpc);
afaf5a2d 8793
d8537548
KC		 8794 ha->task_wq = alloc_workqueue("qla4xxx_%lu_task", WQ_MEM_RECLAIM, 1,
8795 ha->host_no);
b3a271a9
MR		 8796 if (!ha->task_wq) {
8797 ql4_printk(KERN_WARNING, ha, "Unable to start task thread!\n");
8798 ret = -ENODEV;
8799 goto remove_host;
8800 }
8801
6e7b4292
VC		 8802 /*
8803 * For ISP-8XXX, request_irqs is called in qla4_8xxx_load_risc
f4f5df23
VC		 8804 * (which is called indirectly by qla4xxx_initialize_adapter),
8805 * so that irqs will be registered after crbinit but before
8806 * mbx_intr_enable.
8807 */
ee996a69 8808 if (is_qla40XX(ha)) {
f4f5df23
VC		 8809 ret = qla4xxx_request_irqs(ha);
8810 if (ret) {
8811 ql4_printk(KERN_WARNING, ha, "Failed to reserve "
8812 "interrupt %d already in use.\n", pdev->irq);
b3a271a9 8813 goto remove_host;
f4f5df23 8814 }
afaf5a2d 8815 }
afaf5a2d 8816
2232be0d 8817 pci_save_state(ha->pdev);
f4f5df23 8818 ha->isp_ops->enable_intrs(ha);
afaf5a2d
DS		 8819
8820 /* Start timer thread. */
d744644a 8821 qla4xxx_start_timer(ha, 1);
afaf5a2d
DS		 8822
8823 set_bit(AF_INIT_DONE, &ha->flags);
8824
068237c8
TP		 8825 qla4_8xxx_alloc_sysfs_attr(ha);
8826
afaf5a2d
DS		 8827 printk(KERN_INFO
8828 " QLogic iSCSI HBA Driver version: %s\n"
8829 " QLogic ISP%04x @ %s, host#=%ld, fw=%02d.%02d.%02d.%02d\n",
8830 qla4xxx_version_str, ha->pdev->device, pci_name(ha->pdev),
eee06a0f
AC		 8831 ha->host_no, ha->fw_info.fw_major, ha->fw_info.fw_minor,
8832 ha->fw_info.fw_patch, ha->fw_info.fw_build);
ed1086e0 8833
cfb27874
MD		 8834 /* Set the driver version */
8835 if (is_qla80XX(ha))
8836 qla4_8xxx_set_param(ha, SET_DRVR_VERSION);
8837
2a991c21 8838 if (qla4xxx_setup_boot_info(ha))
3573bfb2
VC		 8839 ql4_printk(KERN_ERR, ha,
8840 "%s: No iSCSI boot target configured\n", __func__);
2a991c21 8841
906cbf3d
NJ		 8842 set_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags);
8843 /* Perform the build ddb list and login to each */
13483730
MC		 8844 qla4xxx_build_ddb_list(ha, INIT_ADAPTER);
8845 iscsi_host_for_each_session(ha->host, qla4xxx_login_flash_ddb);
1dc8ed5d 8846 qla4xxx_wait_login_resp_boot_tgt(ha);
13483730
MC		 8847
8848 qla4xxx_create_chap_list(ha);
8849
ed1086e0 8850 qla4xxx_create_ifaces(ha);
afaf5a2d
DS		 8851 return 0;
8852
b3a271a9
MR		 8853remove_host:
8854 scsi_remove_host(ha->host);
8855
afaf5a2d
DS		 8856probe_failed:
8857 qla4xxx_free_adapter(ha);
f4f5df23
VC		 8858
8859probe_failed_ioconfig:
2232be0d 8860 pci_disable_pcie_error_reporting(pdev);
afaf5a2d
DS		 8861 scsi_host_put(ha->host);
8862
8863probe_disable_device:
8864 pci_disable_device(pdev);
8865
8866 return ret;
8867}
8868
7eece5a0
KH		 8869/**
8870 * qla4xxx_prevent_other_port_reinit - prevent other port from re-initialize
8871 * @ha: pointer to adapter structure
8872 *
8873 * Mark the other ISP-4xxx port to indicate that the driver is being removed,
8874 * so that the other port will not re-initialize while in the process of
8875 * removing the ha due to driver unload or hba hotplug.
8876 **/
8877static void qla4xxx_prevent_other_port_reinit(struct scsi_qla_host *ha)
8878{
8879 struct scsi_qla_host *other_ha = NULL;
8880 struct pci_dev *other_pdev = NULL;
8881 int fn = ISP4XXX_PCI_FN_2;
8882
8883 /*iscsi function numbers for ISP4xxx is 1 and 3*/
8884 if (PCI_FUNC(ha->pdev->devfn) & BIT_1)
8885 fn = ISP4XXX_PCI_FN_1;
8886
8887 other_pdev =
8888 pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus),
8889 ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
8890 fn));
8891
8892 /* Get other_ha if other_pdev is valid and state is enable*/
8893 if (other_pdev) {
8894 if (atomic_read(&other_pdev->enable_cnt)) {
8895 other_ha = pci_get_drvdata(other_pdev);
8896 if (other_ha) {
8897 set_bit(AF_HA_REMOVAL, &other_ha->flags);
8898 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: "
8899 "Prevent %s reinit\n", __func__,
8900 dev_name(&other_ha->pdev->dev)));
8901 }
8902 }
8903 pci_dev_put(other_pdev);
8904 }
8905}
8906
28d958ba
VC		 8907static void qla4xxx_destroy_ddb(struct scsi_qla_host *ha,
8908 struct ddb_entry *ddb_entry)
8909{
8910 struct dev_db_entry *fw_ddb_entry = NULL;
8911 dma_addr_t fw_ddb_entry_dma;
8912 unsigned long wtime;
8913 uint32_t ddb_state;
8914 int options;
8915 int status;
8916
8917 options = LOGOUT_OPTION_CLOSE_SESSION;
8918 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR) {
8919 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__);
8920 goto clear_ddb;
8921 }
8922
8923 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8924 &fw_ddb_entry_dma, GFP_KERNEL);
8925 if (!fw_ddb_entry) {
8926 ql4_printk(KERN_ERR, ha,
8927 "%s: Unable to allocate dma buffer\n", __func__);
8928 goto clear_ddb;
8929 }
8930
8931 wtime = jiffies + (HZ * LOGOUT_TOV);
8932 do {
8933 status = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index,
8934 fw_ddb_entry, fw_ddb_entry_dma,
8935 NULL, NULL, &ddb_state, NULL,
8936 NULL, NULL);
8937 if (status == QLA_ERROR)
8938 goto free_ddb;
8939
8940 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) ||
8941 (ddb_state == DDB_DS_SESSION_FAILED))
8942 goto free_ddb;
8943
8944 schedule_timeout_uninterruptible(HZ);
8945 } while ((time_after(wtime, jiffies)));
8946
8947free_ddb:
8948 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
8949 fw_ddb_entry, fw_ddb_entry_dma);
8950clear_ddb:
8951 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
8952}
8953
13483730
MC		 8954static void qla4xxx_destroy_fw_ddb_session(struct scsi_qla_host *ha)
8955{
8956 struct ddb_entry *ddb_entry;
13483730
MC		 8957 int idx;
8958
8959 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
8960
8961 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
8962 if ((ddb_entry != NULL) &&
8963 (ddb_entry->ddb_type == FLASH_DDB)) {
8964
28d958ba 8965 qla4xxx_destroy_ddb(ha, ddb_entry);
13483730
MC		 8966 /*
8967 * we have decremented the reference count of the driver
8968 * when we setup the session to have the driver unload
8969 * to be seamless without actually destroying the
8970 * session
8971 **/
8972 try_module_get(qla4xxx_iscsi_transport.owner);
8973 iscsi_destroy_endpoint(ddb_entry->conn->ep);
8974 qla4xxx_free_ddb(ha, ddb_entry);
8975 iscsi_session_teardown(ddb_entry->sess);
8976 }
8977 }
8978}
afaf5a2d 8979/**
59e13d48 8980 * qla4xxx_remove_adapter - callback function to remove adapter.
afaf5a2d
DS		 8981 * @pci_dev: PCI device pointer
8982 **/
6f039790 8983static void qla4xxx_remove_adapter(struct pci_dev *pdev)
afaf5a2d
DS		 8984{
8985 struct scsi_qla_host *ha;
8986
f8b0751d
VC		 8987 /*
8988 * If the PCI device is disabled then it means probe_adapter had
8989 * failed and resources already cleaned up on probe_adapter exit.
8990 */
8991 if (!pci_is_enabled(pdev))
8992 return;
8993
afaf5a2d
DS		 8994 ha = pci_get_drvdata(pdev);
8995
ee996a69 8996 if (is_qla40XX(ha))
7eece5a0 8997 qla4xxx_prevent_other_port_reinit(ha);
bee4fe8e 8998
ed1086e0
VC		 8999 /* destroy iface from sysfs */
9000 qla4xxx_destroy_ifaces(ha);
9001
13483730 9002 if ((!ql4xdisablesysfsboot) && ha->boot_kset)
2a991c21
MR		 9003 iscsi_boot_destroy_kset(ha->boot_kset);
9004
13483730 9005 qla4xxx_destroy_fw_ddb_session(ha);
068237c8 9006 qla4_8xxx_free_sysfs_attr(ha);
13483730 9007
1e9e2be3 9008 qla4xxx_sysfs_ddb_remove(ha);
afaf5a2d
DS		 9009 scsi_remove_host(ha->host);
9010
9011 qla4xxx_free_adapter(ha);
9012
9013 scsi_host_put(ha->host);
9014
2232be0d 9015 pci_disable_pcie_error_reporting(pdev);
f4f5df23 9016 pci_disable_device(pdev);
afaf5a2d
DS		 9017}
9018
9019/**
9020 * qla4xxx_config_dma_addressing() - Configure OS DMA addressing method.
9021 * @ha: HA context
afaf5a2d 9022 */
47975477 9023static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha)
afaf5a2d 9024{
afaf5a2d 9025 /* Update our PCI device dma_mask for full 64 bit mask */
ec44a676
CH		 9026 if (dma_set_mask_and_coherent(&ha->pdev->dev, DMA_BIT_MASK(64))) {
9027 dev_dbg(&ha->pdev->dev,
9028 "Failed to set 64 bit PCI consistent mask; "
9029 "using 32 bit.\n");
9030 dma_set_mask_and_coherent(&ha->pdev->dev, DMA_BIT_MASK(32));
9031 }
afaf5a2d
DS		 9032}
9033
9034static int qla4xxx_slave_alloc(struct scsi_device *sdev)
9035{
b3a271a9
MR		 9036 struct iscsi_cls_session *cls_sess;
9037 struct iscsi_session *sess;
9038 struct ddb_entry *ddb;
8bb4033d 9039 int queue_depth = QL4_DEF_QDEPTH;
afaf5a2d 9040
b3a271a9
MR		 9041 cls_sess = starget_to_session(sdev->sdev_target);
9042 sess = cls_sess->dd_data;
9043 ddb = sess->dd_data;
9044
afaf5a2d 9045 sdev->hostdata = ddb;
8bb4033d
VC		 9046
9047 if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU)
9048 queue_depth = ql4xmaxqdepth;
9049
db5ed4df 9050 scsi_change_queue_depth(sdev, queue_depth);
afaf5a2d
DS		 9051 return 0;
9052}
9053
afaf5a2d
DS		 9054/**
9055 * qla4xxx_del_from_active_array - returns an active srb
9056 * @ha: Pointer to host adapter structure.
fd589a8f 9057 * @index: index into the active_array
afaf5a2d
DS		 9058 *
9059 * This routine removes and returns the srb at the specified index
9060 **/
f4f5df23
VC		 9061struct srb *qla4xxx_del_from_active_array(struct scsi_qla_host *ha,
9062 uint32_t index)
afaf5a2d
DS		 9063{
9064 struct srb *srb = NULL;
5369887a 9065 struct scsi_cmnd *cmd = NULL;
afaf5a2d 9066
5369887a
VC		 9067 cmd = scsi_host_find_tag(ha->host, index);
9068 if (!cmd)
afaf5a2d
DS		 9069 return srb;
9070
5369887a
VC		 9071 srb = (struct srb *)CMD_SP(cmd);
9072 if (!srb)
afaf5a2d
DS		 9073 return srb;
9074
9075 /* update counters */
9076 if (srb->flags & SRB_DMA_VALID) {
afaf5a2d
DS		 9077 ha->iocb_cnt -= srb->iocb_cnt;
9078 if (srb->cmd)
5369887a
VC		 9079 srb->cmd->host_scribble =
9080 (unsigned char *)(unsigned long) MAX_SRBS;
afaf5a2d
DS		 9081 }
9082 return srb;
9083}
9084
afaf5a2d
DS		 9085/**
9086 * qla4xxx_eh_wait_on_command - waits for command to be returned by firmware
09a0f719 9087 * @ha: Pointer to host adapter structure.
afaf5a2d
DS		 9088 * @cmd: Scsi Command to wait on.
9089 *
9090 * This routine waits for the command to be returned by the Firmware
9091 * for some max time.
9092 **/
9093static int qla4xxx_eh_wait_on_command(struct scsi_qla_host *ha,
9094 struct scsi_cmnd *cmd)
9095{
9096 int done = 0;
9097 struct srb *rp;
9098 uint32_t max_wait_time = EH_WAIT_CMD_TOV;
2232be0d
LC		 9099 int ret = SUCCESS;
9100
9101 /* Dont wait on command if PCI error is being handled
9102 * by PCI AER driver
9103 */
9104 if (unlikely(pci_channel_offline(ha->pdev)) ||
9105 (test_bit(AF_EEH_BUSY, &ha->flags))) {
9106 ql4_printk(KERN_WARNING, ha, "scsi%ld: Return from %s\n",
9107 ha->host_no, __func__);
9108 return ret;
9109 }
afaf5a2d
DS		 9110
9111 do {
9112 /* Checking to see if its returned to OS */
5369887a 9113 rp = (struct srb *) CMD_SP(cmd);
afaf5a2d
DS		 9114 if (rp == NULL) {
9115 done++;
9116 break;
9117 }
9118
9119 msleep(2000);
9120 } while (max_wait_time--);
9121
9122 return done;
9123}
9124
9125/**
9126 * qla4xxx_wait_for_hba_online - waits for HBA to come online
9127 * @ha: Pointer to host adapter structure
9128 **/
9129static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha)
9130{
9131 unsigned long wait_online;
9132
f581a3f7 9133 wait_online = jiffies + (HBA_ONLINE_TOV * HZ);
afaf5a2d
DS		 9134 while (time_before(jiffies, wait_online)) {
9135
9136 if (adapter_up(ha))
9137 return QLA_SUCCESS;
afaf5a2d
DS		 9138
9139 msleep(2000);
9140 }
9141
9142 return QLA_ERROR;
9143}
9144
9145/**
ce545039 9146 * qla4xxx_eh_wait_for_commands - wait for active cmds to finish.
fd589a8f 9147 * @ha: pointer to HBA
afaf5a2d
DS		 9148 * @t: target id
9149 * @l: lun id
9150 *
9151 * This function waits for all outstanding commands to a lun to complete. It
9152 * returns 0 if all pending commands are returned and 1 otherwise.
9153 **/
ce545039
MC		 9154static int qla4xxx_eh_wait_for_commands(struct scsi_qla_host *ha,
9155 struct scsi_target *stgt,
9156 struct scsi_device *sdev)
afaf5a2d
DS		 9157{
9158 int cnt;
9159 int status = 0;
9160 struct scsi_cmnd *cmd;
9161
9162 /*
ce545039
MC		 9163 * Waiting for all commands for the designated target or dev
9164 * in the active array
afaf5a2d
DS		 9165 */
9166 for (cnt = 0; cnt < ha->host->can_queue; cnt++) {
9167 cmd = scsi_host_find_tag(ha->host, cnt);
ce545039
MC		 9168 if (cmd && stgt == scsi_target(cmd->device) &&
9169 (!sdev || sdev == cmd->device)) {
afaf5a2d
DS		 9170 if (!qla4xxx_eh_wait_on_command(ha, cmd)) {
9171 status++;
9172 break;
9173 }
9174 }
9175 }
9176 return status;
9177}
9178
09a0f719
VC		 9179/**
9180 * qla4xxx_eh_abort - callback for abort task.
9181 * @cmd: Pointer to Linux's SCSI command structure
9182 *
9183 * This routine is called by the Linux OS to abort the specified
9184 * command.
9185 **/
9186static int qla4xxx_eh_abort(struct scsi_cmnd *cmd)
9187{
9188 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
9189 unsigned int id = cmd->device->id;
9cb78c16 9190 uint64_t lun = cmd->device->lun;
92b3e5bb 9191 unsigned long flags;
09a0f719
VC		 9192 struct srb *srb = NULL;
9193 int ret = SUCCESS;
9194 int wait = 0;
1bc5ad3a 9195 int rval;
09a0f719 9196
9cb78c16 9197 ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%llu: Abort command issued cmd=%p, cdb=0x%x\n",
63c9e814 9198 ha->host_no, id, lun, cmd, cmd->cmnd[0]);
09a0f719 9199
1bc5ad3a
MR		 9200 rval = qla4xxx_isp_check_reg(ha);
9201 if (rval != QLA_SUCCESS) {
9202 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n");
9203 return FAILED;
9204 }
9205
92b3e5bb 9206 spin_lock_irqsave(&ha->hardware_lock, flags);
09a0f719 9207 srb = (struct srb *) CMD_SP(cmd);
92b3e5bb
MC		 9208 if (!srb) {
9209 spin_unlock_irqrestore(&ha->hardware_lock, flags);
9cb78c16 9210 ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%llu: Specified command has already completed.\n",
63c9e814 9211 ha->host_no, id, lun);
09a0f719 9212 return SUCCESS;
92b3e5bb 9213 }
09a0f719 9214 kref_get(&srb->srb_ref);
92b3e5bb 9215 spin_unlock_irqrestore(&ha->hardware_lock, flags);
09a0f719
VC		 9216
9217 if (qla4xxx_abort_task(ha, srb) != QLA_SUCCESS) {
9cb78c16 9218 DEBUG3(printk("scsi%ld:%d:%llu: Abort_task mbx failed.\n",
09a0f719
VC		 9219 ha->host_no, id, lun));
9220 ret = FAILED;
9221 } else {
9cb78c16 9222 DEBUG3(printk("scsi%ld:%d:%llu: Abort_task mbx success.\n",
09a0f719
VC		 9223 ha->host_no, id, lun));
9224 wait = 1;
9225 }
9226
9227 kref_put(&srb->srb_ref, qla4xxx_srb_compl);
9228
9229 /* Wait for command to complete */
9230 if (wait) {
9231 if (!qla4xxx_eh_wait_on_command(ha, cmd)) {
9cb78c16 9232 DEBUG2(printk("scsi%ld:%d:%llu: Abort handler timed out\n",
09a0f719
VC		 9233 ha->host_no, id, lun));
9234 ret = FAILED;
9235 }
9236 }
9237
c2660df3 9238 ql4_printk(KERN_INFO, ha,
9cb78c16 9239 "scsi%ld:%d:%llu: Abort command - %s\n",
25985edc 9240 ha->host_no, id, lun, (ret == SUCCESS) ? "succeeded" : "failed");
09a0f719
VC		 9241
9242 return ret;
9243}
9244
afaf5a2d
DS		 9245/**
9246 * qla4xxx_eh_device_reset - callback for target reset.
9247 * @cmd: Pointer to Linux's SCSI command structure
9248 *
9249 * This routine is called by the Linux OS to reset all luns on the
9250 * specified target.
9251 **/
9252static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd)
9253{
9254 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
9255 struct ddb_entry *ddb_entry = cmd->device->hostdata;
afaf5a2d 9256 int ret = FAILED, stat;
1bc5ad3a 9257 int rval;
afaf5a2d 9258
612f7348 9259 if (!ddb_entry)
afaf5a2d
DS		 9260 return ret;
9261
c01be6dc
MC		 9262 ret = iscsi_block_scsi_eh(cmd);
9263 if (ret)
9264 return ret;
9265 ret = FAILED;
9266
c2660df3 9267 ql4_printk(KERN_INFO, ha,
9cb78c16 9268 "scsi%ld:%d:%d:%llu: DEVICE RESET ISSUED.\n", ha->host_no,
afaf5a2d
DS		 9269 cmd->device->channel, cmd->device->id, cmd->device->lun);
9270
9271 DEBUG2(printk(KERN_INFO
9272 "scsi%ld: DEVICE_RESET cmd=%p jiffies = 0x%lx, to=%x,"
9273 "dpc_flags=%lx, status=%x allowed=%d\n", ha->host_no,
242f9dcb 9274 cmd, jiffies, cmd->request->timeout / HZ,
afaf5a2d
DS		 9275 ha->dpc_flags, cmd->result, cmd->allowed));
9276
1bc5ad3a
MR		 9277 rval = qla4xxx_isp_check_reg(ha);
9278 if (rval != QLA_SUCCESS) {
9279 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n");
9280 return FAILED;
9281 }
9282
afaf5a2d
DS		 9283 /* FIXME: wait for hba to go online */
9284 stat = qla4xxx_reset_lun(ha, ddb_entry, cmd->device->lun);
9285 if (stat != QLA_SUCCESS) {
c2660df3 9286 ql4_printk(KERN_INFO, ha, "DEVICE RESET FAILED. %d\n", stat);
afaf5a2d
DS		 9287 goto eh_dev_reset_done;
9288 }
9289
ce545039
MC		 9290 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device),
9291 cmd->device)) {
c2660df3 9292 ql4_printk(KERN_INFO, ha,
ce545039
MC		 9293 "DEVICE RESET FAILED - waiting for "
9294 "commands.\n");
9295 goto eh_dev_reset_done;
afaf5a2d
DS		 9296 }
9297
9d562913
DS		 9298 /* Send marker. */
9299 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun,
9300 MM_LUN_RESET) != QLA_SUCCESS)
9301 goto eh_dev_reset_done;
9302
c2660df3 9303 ql4_printk(KERN_INFO, ha,
9cb78c16 9304 "scsi(%ld:%d:%d:%llu): DEVICE RESET SUCCEEDED.\n",
afaf5a2d
DS		 9305 ha->host_no, cmd->device->channel, cmd->device->id,
9306 cmd->device->lun);
9307
9308 ret = SUCCESS;
9309
9310eh_dev_reset_done:
9311
9312 return ret;
9313}
9314
ce545039
MC		 9315/**
9316 * qla4xxx_eh_target_reset - callback for target reset.
9317 * @cmd: Pointer to Linux's SCSI command structure
9318 *
9319 * This routine is called by the Linux OS to reset the target.
9320 **/
9321static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd)
9322{
9323 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
9324 struct ddb_entry *ddb_entry = cmd->device->hostdata;
c01be6dc 9325 int stat, ret;
1bc5ad3a 9326 int rval;
ce545039
MC		 9327
9328 if (!ddb_entry)
9329 return FAILED;
9330
c01be6dc
MC		 9331 ret = iscsi_block_scsi_eh(cmd);
9332 if (ret)
9333 return ret;
9334
ce545039
MC		 9335 starget_printk(KERN_INFO, scsi_target(cmd->device),
9336 "WARM TARGET RESET ISSUED.\n");
9337
9338 DEBUG2(printk(KERN_INFO
9339 "scsi%ld: TARGET_DEVICE_RESET cmd=%p jiffies = 0x%lx, "
9340 "to=%x,dpc_flags=%lx, status=%x allowed=%d\n",
242f9dcb 9341 ha->host_no, cmd, jiffies, cmd->request->timeout / HZ,
ce545039
MC		 9342 ha->dpc_flags, cmd->result, cmd->allowed));
9343
1bc5ad3a
MR		 9344 rval = qla4xxx_isp_check_reg(ha);
9345 if (rval != QLA_SUCCESS) {
9346 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n");
9347 return FAILED;
9348 }
9349
ce545039
MC		 9350 stat = qla4xxx_reset_target(ha, ddb_entry);
9351 if (stat != QLA_SUCCESS) {
9352 starget_printk(KERN_INFO, scsi_target(cmd->device),
9353 "WARM TARGET RESET FAILED.\n");
9354 return FAILED;
9355 }
9356
ce545039
MC		 9357 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device),
9358 NULL)) {
9359 starget_printk(KERN_INFO, scsi_target(cmd->device),
9360 "WARM TARGET DEVICE RESET FAILED - "
9361 "waiting for commands.\n");
9362 return FAILED;
9363 }
9364
9d562913
DS		 9365 /* Send marker. */
9366 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun,
9367 MM_TGT_WARM_RESET) != QLA_SUCCESS) {
9368 starget_printk(KERN_INFO, scsi_target(cmd->device),
9369 "WARM TARGET DEVICE RESET FAILED - "
9370 "marker iocb failed.\n");
9371 return FAILED;
9372 }
9373
ce545039
MC		 9374 starget_printk(KERN_INFO, scsi_target(cmd->device),
9375 "WARM TARGET RESET SUCCEEDED.\n");
9376 return SUCCESS;
9377}
9378
8a288960
SR		 9379/**
9380 * qla4xxx_is_eh_active - check if error handler is running
9381 * @shost: Pointer to SCSI Host struct
9382 *
9383 * This routine finds that if reset host is called in EH
9384 * scenario or from some application like sg_reset
9385 **/
9386static int qla4xxx_is_eh_active(struct Scsi_Host *shost)
9387{
9388 if (shost->shost_state == SHOST_RECOVERY)
9389 return 1;
9390 return 0;
9391}
9392
afaf5a2d
DS		 9393/**
9394 * qla4xxx_eh_host_reset - kernel callback
9395 * @cmd: Pointer to Linux's SCSI command structure
9396 *
9397 * This routine is invoked by the Linux kernel to perform fatal error
9398 * recovery on the specified adapter.
9399 **/
9400static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd)
9401{
9402 int return_status = FAILED;
9403 struct scsi_qla_host *ha;
1bc5ad3a 9404 int rval;
afaf5a2d 9405
b3a271a9 9406 ha = to_qla_host(cmd->device->host);
afaf5a2d 9407
1bc5ad3a
MR		 9408 rval = qla4xxx_isp_check_reg(ha);
9409 if (rval != QLA_SUCCESS) {
9410 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n");
9411 return FAILED;
9412 }
9413
b37ca418 9414 if ((is_qla8032(ha) || is_qla8042(ha)) && ql4xdontresethba)
6e7b4292
VC		 9415 qla4_83xx_set_idc_dontreset(ha);
9416
9417 /*
b37ca418
VC		 9418 * For ISP8324 and ISP8042, if IDC_CTRL DONTRESET_BIT0 is set by other
9419 * protocol drivers, we should not set device_state to NEED_RESET
6e7b4292
VC		 9420 */
9421 if (ql4xdontresethba ||
b37ca418
VC		 9422 ((is_qla8032(ha) || is_qla8042(ha)) &&
9423 qla4_83xx_idc_dontreset(ha))) {
f4f5df23
VC		 9424 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n",
9425 ha->host_no, __func__));
8a288960
SR		 9426
9427 /* Clear outstanding srb in queues */
9428 if (qla4xxx_is_eh_active(cmd->device->host))
9429 qla4xxx_abort_active_cmds(ha, DID_ABORT << 16);
9430
f4f5df23
VC		 9431 return FAILED;
9432 }
9433
c2660df3 9434 ql4_printk(KERN_INFO, ha,
9cb78c16 9435 "scsi(%ld:%d:%d:%llu): HOST RESET ISSUED.\n", ha->host_no,
afaf5a2d
DS		 9436 cmd->device->channel, cmd->device->id, cmd->device->lun);
9437
9438 if (qla4xxx_wait_for_hba_online(ha) != QLA_SUCCESS) {
9439 DEBUG2(printk("scsi%ld:%d: %s: Unable to reset host. Adapter "
9440 "DEAD.\n", ha->host_no, cmd->device->channel,
9441 __func__));
9442
9443 return FAILED;
9444 }
9445
f4f5df23 9446 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
6e7b4292 9447 if (is_qla80XX(ha))
f4f5df23
VC		 9448 set_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
9449 else
9450 set_bit(DPC_RESET_HA, &ha->dpc_flags);
9451 }
50a29aec 9452
f4f5df23 9453 if (qla4xxx_recover_adapter(ha) == QLA_SUCCESS)
afaf5a2d 9454 return_status = SUCCESS;
afaf5a2d 9455
c2660df3 9456 ql4_printk(KERN_INFO, ha, "HOST RESET %s.\n",
25985edc 9457 return_status == FAILED ? "FAILED" : "SUCCEEDED");
afaf5a2d
DS		 9458
9459 return return_status;
9460}
9461
95d31262
VC		 9462static int qla4xxx_context_reset(struct scsi_qla_host *ha)
9463{
9464 uint32_t mbox_cmd[MBOX_REG_COUNT];
9465 uint32_t mbox_sts[MBOX_REG_COUNT];
9466 struct addr_ctrl_blk_def *acb = NULL;
9467 uint32_t acb_len = sizeof(struct addr_ctrl_blk_def);
9468 int rval = QLA_SUCCESS;
9469 dma_addr_t acb_dma;
9470
9471 acb = dma_alloc_coherent(&ha->pdev->dev,
9472 sizeof(struct addr_ctrl_blk_def),
9473 &acb_dma, GFP_KERNEL);
9474 if (!acb) {
9475 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc acb\n",
9476 __func__);
9477 rval = -ENOMEM;
9478 goto exit_port_reset;
9479 }
9480
9481 memset(acb, 0, acb_len);
9482
9483 rval = qla4xxx_get_acb(ha, acb_dma, PRIMARI_ACB, acb_len);
9484 if (rval != QLA_SUCCESS) {
9485 rval = -EIO;
9486 goto exit_free_acb;
9487 }
9488
9489 rval = qla4xxx_disable_acb(ha);
9490 if (rval != QLA_SUCCESS) {
9491 rval = -EIO;
9492 goto exit_free_acb;
9493 }
9494
9495 wait_for_completion_timeout(&ha->disable_acb_comp,
9496 DISABLE_ACB_TOV * HZ);
9497
9498 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], acb_dma);
9499 if (rval != QLA_SUCCESS) {
9500 rval = -EIO;
9501 goto exit_free_acb;
9502 }
9503
9504exit_free_acb:
9505 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk_def),
9506 acb, acb_dma);
9507exit_port_reset:
9508 DEBUG2(ql4_printk(KERN_INFO, ha, "%s %s\n", __func__,
9509 rval == QLA_SUCCESS ? "SUCCEEDED" : "FAILED"));
9510 return rval;
9511}
9512
9513static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type)
9514{
9515 struct scsi_qla_host *ha = to_qla_host(shost);
9516 int rval = QLA_SUCCESS;
ebd777de 9517 uint32_t idc_ctrl;
95d31262
VC		 9518
9519 if (ql4xdontresethba) {
9520 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Don't Reset HBA\n",
9521 __func__));
9522 rval = -EPERM;
9523 goto exit_host_reset;
9524 }
9525
95d31262
VC		 9526 if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
9527 goto recover_adapter;
9528
9529 switch (reset_type) {
9530 case SCSI_ADAPTER_RESET:
9531 set_bit(DPC_RESET_HA, &ha->dpc_flags);
9532 break;
9533 case SCSI_FIRMWARE_RESET:
9534 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
6e7b4292 9535 if (is_qla80XX(ha))
95d31262
VC		 9536 /* set firmware context reset */
9537 set_bit(DPC_RESET_HA_FW_CONTEXT,
9538 &ha->dpc_flags);
9539 else {
9540 rval = qla4xxx_context_reset(ha);
9541 goto exit_host_reset;
9542 }
9543 }
9544 break;
9545 }
9546
9547recover_adapter:
b37ca418 9548 /* For ISP8324 and ISP8042 set graceful reset bit in IDC_DRV_CTRL if
ebd777de 9549 * reset is issued by application */
b37ca418
VC		 9550 if ((is_qla8032(ha) || is_qla8042(ha)) &&
9551 test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
ebd777de
VC		 9552 idc_ctrl = qla4_83xx_rd_reg(ha, QLA83XX_IDC_DRV_CTRL);
9553 qla4_83xx_wr_reg(ha, QLA83XX_IDC_DRV_CTRL,
9554 (idc_ctrl | GRACEFUL_RESET_BIT1));
9555 }
9556
95d31262
VC		 9557 rval = qla4xxx_recover_adapter(ha);
9558 if (rval != QLA_SUCCESS) {
9559 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: recover adapter fail\n",
9560 __func__));
9561 rval = -EIO;
9562 }
9563
9564exit_host_reset:
9565 return rval;
9566}
9567
2232be0d
LC		 9568/* PCI AER driver recovers from all correctable errors w/o
9569 * driver intervention. For uncorrectable errors PCI AER
9570 * driver calls the following device driver's callbacks
9571 *
9572 * - Fatal Errors - link_reset
364757e4 9573 * - Non-Fatal Errors - driver's error_detected() which
2232be0d
LC		 9574 * returns CAN_RECOVER, NEED_RESET or DISCONNECT.
9575 *
9576 * PCI AER driver calls
364757e4 9577 * CAN_RECOVER - driver's mmio_enabled(), mmio_enabled()
2232be0d
LC		 9578 * returns RECOVERED or NEED_RESET if fw_hung
9579 * NEED_RESET - driver's slot_reset()
9580 * DISCONNECT - device is dead & cannot recover
364757e4 9581 * RECOVERED - driver's resume()
2232be0d
LC		 9582 */
9583static pci_ers_result_t
9584qla4xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
9585{
9586 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9587
9588 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: error detected:state %x\n",
9589 ha->host_no, __func__, state);
9590
9591 if (!is_aer_supported(ha))
9592 return PCI_ERS_RESULT_NONE;
9593
9594 switch (state) {
9595 case pci_channel_io_normal:
9596 clear_bit(AF_EEH_BUSY, &ha->flags);
9597 return PCI_ERS_RESULT_CAN_RECOVER;
9598 case pci_channel_io_frozen:
9599 set_bit(AF_EEH_BUSY, &ha->flags);
9600 qla4xxx_mailbox_premature_completion(ha);
9601 qla4xxx_free_irqs(ha);
9602 pci_disable_device(pdev);
7b3595df
VC		 9603 /* Return back all IOs */
9604 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
2232be0d
LC		 9605 return PCI_ERS_RESULT_NEED_RESET;
9606 case pci_channel_io_perm_failure:
9607 set_bit(AF_EEH_BUSY, &ha->flags);
9608 set_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags);
9609 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
9610 return PCI_ERS_RESULT_DISCONNECT;
9611 }
9612 return PCI_ERS_RESULT_NEED_RESET;
9613}
9614
9615/**
9616 * qla4xxx_pci_mmio_enabled() gets called if
9617 * qla4xxx_pci_error_detected() returns PCI_ERS_RESULT_CAN_RECOVER
9618 * and read/write to the device still works.
9619 **/
9620static pci_ers_result_t
9621qla4xxx_pci_mmio_enabled(struct pci_dev *pdev)
9622{
9623 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9624
9625 if (!is_aer_supported(ha))
9626 return PCI_ERS_RESULT_NONE;
9627
7b3595df 9628 return PCI_ERS_RESULT_RECOVERED;
2232be0d
LC		 9629}
9630
7b3595df 9631static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha)
2232be0d
LC		 9632{
9633 uint32_t rval = QLA_ERROR;
9634 int fn;
9635 struct pci_dev *other_pdev = NULL;
9636
9637 ql4_printk(KERN_WARNING, ha, "scsi%ld: In %s\n", ha->host_no, __func__);
9638
9639 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
9640
9641 if (test_bit(AF_ONLINE, &ha->flags)) {
9642 clear_bit(AF_ONLINE, &ha->flags);
b3a271a9
MR		 9643 clear_bit(AF_LINK_UP, &ha->flags);
9644 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session);
2232be0d 9645 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
2232be0d
LC		 9646 }
9647
9648 fn = PCI_FUNC(ha->pdev->devfn);
daa34eb4
TP		 9649 if (is_qla8022(ha)) {
9650 while (fn > 0) {
9651 fn--;
9652 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Finding PCI device at func %x\n",
9653 ha->host_no, __func__, fn);
9654 /* Get the pci device given the domain, bus,
9655 * slot/function number */
9656 other_pdev = pci_get_domain_bus_and_slot(
9657 pci_domain_nr(ha->pdev->bus),
9658 ha->pdev->bus->number,
9659 PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
9660 fn));
9661
9662 if (!other_pdev)
9663 continue;
2232be0d 9664
daa34eb4
TP		 9665 if (atomic_read(&other_pdev->enable_cnt)) {
9666 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Found PCI func in enabled state%x\n",
9667 ha->host_no, __func__, fn);
9668 pci_dev_put(other_pdev);
9669 break;
9670 }
2232be0d 9671 pci_dev_put(other_pdev);
2232be0d 9672 }
daa34eb4
TP		 9673 } else {
9674 /* this case is meant for ISP83xx/ISP84xx only */
9675 if (qla4_83xx_can_perform_reset(ha)) {
9676 /* reset fn as iSCSI is going to perform the reset */
9677 fn = 0;
9678 }
2232be0d
LC		 9679 }
9680
9681 /* The first function on the card, the reset owner will
9682 * start & initialize the firmware. The other functions
9683 * on the card will reset the firmware context
9684 */
9685 if (!fn) {
9686 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn being reset "
9687 "0x%x is the owner\n", ha->host_no, __func__,
9688 ha->pdev->devfn);
9689
33693c7a
VC		 9690 ha->isp_ops->idc_lock(ha);
9691 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9692 QLA8XXX_DEV_COLD);
33693c7a 9693 ha->isp_ops->idc_unlock(ha);
39c95826
VC		 9694
9695 rval = qla4_8xxx_update_idc_reg(ha);
9696 if (rval == QLA_ERROR) {
9697 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: FAILED\n",
9698 ha->host_no, __func__);
9699 ha->isp_ops->idc_lock(ha);
9700 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9701 QLA8XXX_DEV_FAILED);
9702 ha->isp_ops->idc_unlock(ha);
9703 goto exit_error_recovery;
9704 }
2232be0d 9705
2232be0d 9706 clear_bit(AF_FW_RECOVERY, &ha->flags);
13483730 9707 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
2232be0d
LC		 9708
9709 if (rval != QLA_SUCCESS) {
9710 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: "
9711 "FAILED\n", ha->host_no, __func__);
37418cc6 9712 qla4xxx_free_irqs(ha);
82761907 9713 ha->isp_ops->idc_lock(ha);
2232be0d 9714 qla4_8xxx_clear_drv_active(ha);
33693c7a
VC		 9715 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9716 QLA8XXX_DEV_FAILED);
82761907 9717 ha->isp_ops->idc_unlock(ha);
2232be0d
LC		 9718 } else {
9719 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: "
9720 "READY\n", ha->host_no, __func__);
82761907 9721 ha->isp_ops->idc_lock(ha);
33693c7a
VC		 9722 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
9723 QLA8XXX_DEV_READY);
2232be0d 9724 /* Clear driver state register */
33693c7a 9725 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_STATE, 0);
2232be0d 9726 qla4_8xxx_set_drv_active(ha);
82761907 9727 ha->isp_ops->idc_unlock(ha);
137257da 9728 ha->isp_ops->enable_intrs(ha);
2232be0d 9729 }
2232be0d
LC		 9730 } else {
9731 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn 0x%x is not "
9732 "the reset owner\n", ha->host_no, __func__,
9733 ha->pdev->devfn);
33693c7a
VC		 9734 if ((qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE) ==
9735 QLA8XXX_DEV_READY)) {
2232be0d 9736 clear_bit(AF_FW_RECOVERY, &ha->flags);
13483730 9737 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
137257da
PV		 9738 if (rval == QLA_SUCCESS)
9739 ha->isp_ops->enable_intrs(ha);
37418cc6
NJ		 9740 else
9741 qla4xxx_free_irqs(ha);
137257da 9742
33693c7a 9743 ha->isp_ops->idc_lock(ha);
2232be0d 9744 qla4_8xxx_set_drv_active(ha);
33693c7a 9745 ha->isp_ops->idc_unlock(ha);
2232be0d
LC		 9746 }
9747 }
39c95826 9748exit_error_recovery:
2232be0d
LC		 9749 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
9750 return rval;
9751}
9752
9753static pci_ers_result_t
9754qla4xxx_pci_slot_reset(struct pci_dev *pdev)
9755{
9756 pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
9757 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9758 int rc;
9759
9760 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: slot_reset\n",
9761 ha->host_no, __func__);
9762
9763 if (!is_aer_supported(ha))
9764 return PCI_ERS_RESULT_NONE;
9765
9766 /* Restore the saved state of PCIe device -
9767 * BAR registers, PCI Config space, PCIX, MSI,
9768 * IOV states
9769 */
9770 pci_restore_state(pdev);
9771
9772 /* pci_restore_state() clears the saved_state flag of the device
9773 * save restored state which resets saved_state flag
9774 */
9775 pci_save_state(pdev);
9776
9777 /* Initialize device or resume if in suspended state */
9778 rc = pci_enable_device(pdev);
9779 if (rc) {
25985edc 9780 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Can't re-enable "
2232be0d
LC		 9781 "device after reset\n", ha->host_no, __func__);
9782 goto exit_slot_reset;
9783 }
9784
7b3595df 9785 ha->isp_ops->disable_intrs(ha);
2232be0d 9786
6e7b4292 9787 if (is_qla80XX(ha)) {
2232be0d
LC		 9788 if (qla4_8xxx_error_recovery(ha) == QLA_SUCCESS) {
9789 ret = PCI_ERS_RESULT_RECOVERED;
9790 goto exit_slot_reset;
9791 } else
9792 goto exit_slot_reset;
9793 }
9794
9795exit_slot_reset:
9796 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Return=%x\n"
9797 "device after reset\n", ha->host_no, __func__, ret);
9798 return ret;
9799}
9800
9801static void
9802qla4xxx_pci_resume(struct pci_dev *pdev)
9803{
9804 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
9805 int ret;
9806
9807 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: pci_resume\n",
9808 ha->host_no, __func__);
9809
9810 ret = qla4xxx_wait_for_hba_online(ha);
9811 if (ret != QLA_SUCCESS) {
9812 ql4_printk(KERN_ERR, ha, "scsi%ld: %s: the device failed to "
9813 "resume I/O from slot/link_reset\n", ha->host_no,
9814 __func__);
9815 }
9816
2232be0d
LC		 9817 clear_bit(AF_EEH_BUSY, &ha->flags);
9818}
9819
a55b2d21 9820static const struct pci_error_handlers qla4xxx_err_handler = {
2232be0d
LC		 9821 .error_detected = qla4xxx_pci_error_detected,
9822 .mmio_enabled = qla4xxx_pci_mmio_enabled,
9823 .slot_reset = qla4xxx_pci_slot_reset,
9824 .resume = qla4xxx_pci_resume,
9825};
9826
afaf5a2d
DS		 9827static struct pci_device_id qla4xxx_pci_tbl[] = {
9828 {
9829 .vendor = PCI_VENDOR_ID_QLOGIC,
9830 .device = PCI_DEVICE_ID_QLOGIC_ISP4010,
9831 .subvendor = PCI_ANY_ID,
9832 .subdevice = PCI_ANY_ID,
9833 },
9834 {
9835 .vendor = PCI_VENDOR_ID_QLOGIC,
9836 .device = PCI_DEVICE_ID_QLOGIC_ISP4022,
9837 .subvendor = PCI_ANY_ID,
9838 .subdevice = PCI_ANY_ID,
9839 },
d915058f
DS		 9840 {
9841 .vendor = PCI_VENDOR_ID_QLOGIC,
9842 .device = PCI_DEVICE_ID_QLOGIC_ISP4032,
9843 .subvendor = PCI_ANY_ID,
9844 .subdevice = PCI_ANY_ID,
9845 },
f4f5df23
VC		 9846 {
9847 .vendor = PCI_VENDOR_ID_QLOGIC,
9848 .device = PCI_DEVICE_ID_QLOGIC_ISP8022,
9849 .subvendor = PCI_ANY_ID,
9850 .subdevice = PCI_ANY_ID,
9851 },
6e7b4292
VC		 9852 {
9853 .vendor = PCI_VENDOR_ID_QLOGIC,
9854 .device = PCI_DEVICE_ID_QLOGIC_ISP8324,
9855 .subvendor = PCI_ANY_ID,
9856 .subdevice = PCI_ANY_ID,
9857 },
b37ca418
VC		 9858 {
9859 .vendor = PCI_VENDOR_ID_QLOGIC,
9860 .device = PCI_DEVICE_ID_QLOGIC_ISP8042,
9861 .subvendor = PCI_ANY_ID,
9862 .subdevice = PCI_ANY_ID,
9863 },
afaf5a2d
DS		 9864 {0, 0},
9865};
9866MODULE_DEVICE_TABLE(pci, qla4xxx_pci_tbl);
9867
47975477 9868static struct pci_driver qla4xxx_pci_driver = {
afaf5a2d
DS		 9869 .name = DRIVER_NAME,
9870 .id_table = qla4xxx_pci_tbl,
9871 .probe = qla4xxx_probe_adapter,
9872 .remove = qla4xxx_remove_adapter,
2232be0d 9873 .err_handler = &qla4xxx_err_handler,
afaf5a2d
DS		 9874};
9875
9876static int __init qla4xxx_module_init(void)
9877{
9878 int ret;
9879
c40ecc12
CH		 9880 if (ql4xqfulltracking)
9881 qla4xxx_driver_template.track_queue_depth = 1;
9882
afaf5a2d
DS		 9883 /* Allocate cache for SRBs. */
9884 srb_cachep = kmem_cache_create("qla4xxx_srbs", sizeof(struct srb), 0,
20c2df83 9885 SLAB_HWCACHE_ALIGN, NULL);
afaf5a2d
DS		 9886 if (srb_cachep == NULL) {
9887 printk(KERN_ERR
9888 "%s: Unable to allocate SRB cache..."
9889 "Failing load!\n", DRIVER_NAME);
9890 ret = -ENOMEM;
9891 goto no_srp_cache;
9892 }
9893
9894 /* Derive version string. */
9895 strcpy(qla4xxx_version_str, QLA4XXX_DRIVER_VERSION);
11010fec 9896 if (ql4xextended_error_logging)
afaf5a2d
DS		 9897 strcat(qla4xxx_version_str, "-debug");
9898
9899 qla4xxx_scsi_transport =
9900 iscsi_register_transport(&qla4xxx_iscsi_transport);
9901 if (!qla4xxx_scsi_transport){
9902 ret = -ENODEV;
9903 goto release_srb_cache;
9904 }
9905
afaf5a2d
DS		 9906 ret = pci_register_driver(&qla4xxx_pci_driver);
9907 if (ret)
9908 goto unregister_transport;
9909
9910 printk(KERN_INFO "QLogic iSCSI HBA Driver\n");
9911 return 0;
5ae16db3 9912
afaf5a2d
DS		 9913unregister_transport:
9914 iscsi_unregister_transport(&qla4xxx_iscsi_transport);
9915release_srb_cache:
9916 kmem_cache_destroy(srb_cachep);
9917no_srp_cache:
9918 return ret;
9919}
9920
9921static void __exit qla4xxx_module_exit(void)
9922{
9923 pci_unregister_driver(&qla4xxx_pci_driver);
9924 iscsi_unregister_transport(&qla4xxx_iscsi_transport);
9925 kmem_cache_destroy(srb_cachep);
9926}
9927
9928module_init(qla4xxx_module_init);
9929module_exit(qla4xxx_module_exit);
9930
9931MODULE_AUTHOR("QLogic Corporation");
9932MODULE_DESCRIPTION("QLogic iSCSI HBA Driver");
9933MODULE_LICENSE("GPL");
9934MODULE_VERSION(QLA4XXX_DRIVER_VERSION);
Linux 6.x block layer and io_uring tree(s)