blob: 877c0e220ac9d78905f80114b3ef273f6c0d8160 [file] [log] [blame]
David Somayajuluafaf5a22006-09-19 10:28:00 -07001/*
2 * QLogic iSCSI HBA Driver
Vikas Chaudhary7d01d062010-12-02 22:12:51 -08003 * Copyright (c) 2003-2010 QLogic Corporation
David Somayajuluafaf5a22006-09-19 10:28:00 -07004 *
5 * See LICENSE.qla4xxx for copyright and licensing details.
6 */
7#include <linux/moduleparam.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +09008#include <linux/slab.h>
Manish Rangankar2a991c22011-07-25 13:48:55 -05009#include <linux/blkdev.h>
10#include <linux/iscsi_boot_sysfs.h>
Mike Christie13483732011-12-01 21:38:41 -060011#include <linux/inet.h>
David Somayajuluafaf5a22006-09-19 10:28:00 -070012
13#include <scsi/scsi_tcq.h>
14#include <scsi/scsicam.h>
15
16#include "ql4_def.h"
David C Somayajulubee4fe82007-05-23 18:03:32 -070017#include "ql4_version.h"
18#include "ql4_glbl.h"
19#include "ql4_dbg.h"
20#include "ql4_inline.h"
David Somayajuluafaf5a22006-09-19 10:28:00 -070021
22/*
23 * Driver version
24 */
Adrian Bunk47975472007-04-26 00:35:16 -070025static char qla4xxx_version_str[40];
David Somayajuluafaf5a22006-09-19 10:28:00 -070026
27/*
28 * SRB allocation cache
29 */
Christoph Lametere18b8902006-12-06 20:33:20 -080030static struct kmem_cache *srb_cachep;
David Somayajuluafaf5a22006-09-19 10:28:00 -070031
32/*
33 * Module parameter information and variables
34 */
Mike Christie13483732011-12-01 21:38:41 -060035int ql4xdisablesysfsboot = 1;
36module_param(ql4xdisablesysfsboot, int, S_IRUGO | S_IWUSR);
37MODULE_PARM_DESC(ql4xdisablesysfsboot,
Karen Higginsa4e8a712012-01-11 02:44:20 -080038 " Set to disable exporting boot targets to sysfs.\n"
39 "\t\t 0 - Export boot targets\n"
40 "\t\t 1 - Do not export boot targets (Default)");
Mike Christie13483732011-12-01 21:38:41 -060041
David Somayajuluafaf5a22006-09-19 10:28:00 -070042int ql4xdontresethba = 0;
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +053043module_param(ql4xdontresethba, int, S_IRUGO | S_IWUSR);
David Somayajuluafaf5a22006-09-19 10:28:00 -070044MODULE_PARM_DESC(ql4xdontresethba,
Karen Higginsa4e8a712012-01-11 02:44:20 -080045 " Don't reset the HBA for driver recovery.\n"
46 "\t\t 0 - It will reset HBA (Default)\n"
47 "\t\t 1 - It will NOT reset HBA");
David Somayajuluafaf5a22006-09-19 10:28:00 -070048
Karen Higginsa4e8a712012-01-11 02:44:20 -080049int ql4xextended_error_logging;
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +053050module_param(ql4xextended_error_logging, int, S_IRUGO | S_IWUSR);
Andrew Vasquez11010fe2006-10-06 09:54:59 -070051MODULE_PARM_DESC(ql4xextended_error_logging,
Karen Higginsa4e8a712012-01-11 02:44:20 -080052 " Option to enable extended error logging.\n"
53 "\t\t 0 - no logging (Default)\n"
54 "\t\t 2 - debug logging");
David Somayajuluafaf5a22006-09-19 10:28:00 -070055
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +053056int ql4xenablemsix = 1;
57module_param(ql4xenablemsix, int, S_IRUGO|S_IWUSR);
58MODULE_PARM_DESC(ql4xenablemsix,
Karen Higginsa4e8a712012-01-11 02:44:20 -080059 " Set to enable MSI or MSI-X interrupt mechanism.\n"
60 "\t\t 0 = enable INTx interrupt mechanism.\n"
61 "\t\t 1 = enable MSI-X interrupt mechanism (Default).\n"
62 "\t\t 2 = enable MSI interrupt mechanism.");
David C Somayajulu477ffb92007-01-22 12:26:11 -080063
Mike Christied510d962008-07-11 19:50:33 -050064#define QL4_DEF_QDEPTH 32
Vikas Chaudhary8bb40332011-03-21 03:34:31 -070065static int ql4xmaxqdepth = QL4_DEF_QDEPTH;
66module_param(ql4xmaxqdepth, int, S_IRUGO | S_IWUSR);
67MODULE_PARM_DESC(ql4xmaxqdepth,
Karen Higginsa4e8a712012-01-11 02:44:20 -080068 " Maximum queue depth to report for target devices.\n"
69 "\t\t Default: 32.");
Mike Christied510d962008-07-11 19:50:33 -050070
Vikas Chaudhary30387272011-03-21 03:34:32 -070071static int ql4xsess_recovery_tmo = QL4_SESS_RECOVERY_TMO;
72module_param(ql4xsess_recovery_tmo, int, S_IRUGO);
73MODULE_PARM_DESC(ql4xsess_recovery_tmo,
74 "Target Session Recovery Timeout.\n"
Karen Higginsa4e8a712012-01-11 02:44:20 -080075 "\t\t Default: 120 sec.");
Vikas Chaudhary30387272011-03-21 03:34:32 -070076
Manish Rangankarb3a271a2011-07-25 13:48:53 -050077static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha);
David Somayajuluafaf5a22006-09-19 10:28:00 -070078/*
79 * SCSI host template entry points
80 */
Adrian Bunk47975472007-04-26 00:35:16 -070081static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha);
David Somayajuluafaf5a22006-09-19 10:28:00 -070082
83/*
84 * iSCSI template entry points
85 */
David Somayajuluafaf5a22006-09-19 10:28:00 -070086static int qla4xxx_conn_get_param(struct iscsi_cls_conn *conn,
87 enum iscsi_param param, char *buf);
Mike Christieaa1e93a2007-05-30 12:57:09 -050088static int qla4xxx_host_get_param(struct Scsi_Host *shost,
89 enum iscsi_host_param param, char *buf);
Mike Christie00c31882011-10-06 03:56:59 -050090static int qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data,
91 uint32_t len);
Vikas Chaudharyed1086e2011-07-25 13:48:41 -050092static int qla4xxx_get_iface_param(struct iscsi_iface *iface,
93 enum iscsi_param_type param_type,
94 int param, char *buf);
Mike Christie5c656af2009-07-15 15:02:59 -050095static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc);
Manish Rangankarb3a271a2011-07-25 13:48:53 -050096static struct iscsi_endpoint *qla4xxx_ep_connect(struct Scsi_Host *shost,
97 struct sockaddr *dst_addr,
98 int non_blocking);
99static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms);
100static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep);
101static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep,
102 enum iscsi_param param, char *buf);
103static int qla4xxx_conn_start(struct iscsi_cls_conn *conn);
104static struct iscsi_cls_conn *
105qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx);
106static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session,
107 struct iscsi_cls_conn *cls_conn,
108 uint64_t transport_fd, int is_leading);
109static void qla4xxx_conn_destroy(struct iscsi_cls_conn *conn);
110static struct iscsi_cls_session *
111qla4xxx_session_create(struct iscsi_endpoint *ep, uint16_t cmds_max,
112 uint16_t qdepth, uint32_t initial_cmdsn);
113static void qla4xxx_session_destroy(struct iscsi_cls_session *sess);
114static void qla4xxx_task_work(struct work_struct *wdata);
115static int qla4xxx_alloc_pdu(struct iscsi_task *, uint8_t);
116static int qla4xxx_task_xmit(struct iscsi_task *);
117static void qla4xxx_task_cleanup(struct iscsi_task *);
118static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session);
119static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn,
120 struct iscsi_stats *stats);
Vikas Chaudharyc0b9d3f2012-02-13 18:30:49 +0530121static int qla4xxx_send_ping(struct Scsi_Host *shost, uint32_t iface_num,
122 uint32_t iface_type, uint32_t payload_size,
123 uint32_t pid, struct sockaddr *dst_addr);
124
David Somayajuluafaf5a22006-09-19 10:28:00 -0700125/*
126 * SCSI host template entry points
127 */
Jeff Garzikf2812332010-11-16 02:10:29 -0500128static int qla4xxx_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *cmd);
Vikas Chaudhary09a0f712010-04-28 11:42:24 +0530129static int qla4xxx_eh_abort(struct scsi_cmnd *cmd);
David Somayajuluafaf5a22006-09-19 10:28:00 -0700130static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd);
Mike Christiece545032008-02-29 18:25:20 -0600131static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd);
David Somayajuluafaf5a22006-09-19 10:28:00 -0700132static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd);
133static int qla4xxx_slave_alloc(struct scsi_device *device);
134static int qla4xxx_slave_configure(struct scsi_device *device);
135static void qla4xxx_slave_destroy(struct scsi_device *sdev);
Al Viro587a1f12011-07-23 23:11:19 -0400136static umode_t ql4_attr_is_visible(int param_type, int param);
Vikas Chaudhary95d31262011-08-12 02:51:29 -0700137static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type);
David Somayajuluafaf5a22006-09-19 10:28:00 -0700138
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +0530139static struct qla4_8xxx_legacy_intr_set legacy_intr[] =
140 QLA82XX_LEGACY_INTR_CONFIG;
141
David Somayajuluafaf5a22006-09-19 10:28:00 -0700142static struct scsi_host_template qla4xxx_driver_template = {
143 .module = THIS_MODULE,
144 .name = DRIVER_NAME,
145 .proc_name = DRIVER_NAME,
146 .queuecommand = qla4xxx_queuecommand,
147
Vikas Chaudhary09a0f712010-04-28 11:42:24 +0530148 .eh_abort_handler = qla4xxx_eh_abort,
David Somayajuluafaf5a22006-09-19 10:28:00 -0700149 .eh_device_reset_handler = qla4xxx_eh_device_reset,
Mike Christiece545032008-02-29 18:25:20 -0600150 .eh_target_reset_handler = qla4xxx_eh_target_reset,
David Somayajuluafaf5a22006-09-19 10:28:00 -0700151 .eh_host_reset_handler = qla4xxx_eh_host_reset,
Mike Christie5c656af2009-07-15 15:02:59 -0500152 .eh_timed_out = qla4xxx_eh_cmd_timed_out,
David Somayajuluafaf5a22006-09-19 10:28:00 -0700153
154 .slave_configure = qla4xxx_slave_configure,
155 .slave_alloc = qla4xxx_slave_alloc,
156 .slave_destroy = qla4xxx_slave_destroy,
157
158 .this_id = -1,
159 .cmd_per_lun = 3,
160 .use_clustering = ENABLE_CLUSTERING,
161 .sg_tablesize = SG_ALL,
162
163 .max_sectors = 0xFFFF,
Harish Zunjarrao7ad633c2011-05-17 23:17:11 -0700164 .shost_attrs = qla4xxx_host_attrs,
Vikas Chaudhary95d31262011-08-12 02:51:29 -0700165 .host_reset = qla4xxx_host_reset,
Vikas Chaudharya3559432011-07-25 13:48:51 -0500166 .vendor_id = SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC,
David Somayajuluafaf5a22006-09-19 10:28:00 -0700167};
168
169static struct iscsi_transport qla4xxx_iscsi_transport = {
170 .owner = THIS_MODULE,
171 .name = DRIVER_NAME,
Manish Rangankarb3a271a2011-07-25 13:48:53 -0500172 .caps = CAP_TEXT_NEGO |
173 CAP_DATA_PATH_OFFLOAD | CAP_HDRDGST |
174 CAP_DATADGST | CAP_LOGIN_OFFLOAD |
175 CAP_MULTI_R2T,
Mike Christie3128c6c2011-07-25 13:48:42 -0500176 .attr_is_visible = ql4_attr_is_visible,
Manish Rangankarb3a271a2011-07-25 13:48:53 -0500177 .create_session = qla4xxx_session_create,
178 .destroy_session = qla4xxx_session_destroy,
179 .start_conn = qla4xxx_conn_start,
180 .create_conn = qla4xxx_conn_create,
181 .bind_conn = qla4xxx_conn_bind,
182 .stop_conn = iscsi_conn_stop,
183 .destroy_conn = qla4xxx_conn_destroy,
184 .set_param = iscsi_set_param,
David Somayajuluafaf5a22006-09-19 10:28:00 -0700185 .get_conn_param = qla4xxx_conn_get_param,
Manish Rangankarb3a271a2011-07-25 13:48:53 -0500186 .get_session_param = iscsi_session_get_param,
187 .get_ep_param = qla4xxx_get_ep_param,
188 .ep_connect = qla4xxx_ep_connect,
189 .ep_poll = qla4xxx_ep_poll,
190 .ep_disconnect = qla4xxx_ep_disconnect,
191 .get_stats = qla4xxx_conn_get_stats,
192 .send_pdu = iscsi_conn_send_pdu,
193 .xmit_task = qla4xxx_task_xmit,
194 .cleanup_task = qla4xxx_task_cleanup,
195 .alloc_pdu = qla4xxx_alloc_pdu,
196
Mike Christieaa1e93a2007-05-30 12:57:09 -0500197 .get_host_param = qla4xxx_host_get_param,
Mike Christied00efe32011-07-25 13:48:38 -0500198 .set_iface_param = qla4xxx_iface_set_param,
Vikas Chaudharyed1086e2011-07-25 13:48:41 -0500199 .get_iface_param = qla4xxx_get_iface_param,
Vikas Chaudharya3559432011-07-25 13:48:51 -0500200 .bsg_request = qla4xxx_bsg_request,
Vikas Chaudharyc0b9d3f2012-02-13 18:30:49 +0530201 .send_ping = qla4xxx_send_ping,
David Somayajuluafaf5a22006-09-19 10:28:00 -0700202};
203
204static struct scsi_transport_template *qla4xxx_scsi_transport;
205
Vikas Chaudharyc0b9d3f2012-02-13 18:30:49 +0530206static int qla4xxx_send_ping(struct Scsi_Host *shost, uint32_t iface_num,
207 uint32_t iface_type, uint32_t payload_size,
208 uint32_t pid, struct sockaddr *dst_addr)
209{
210 struct scsi_qla_host *ha = to_qla_host(shost);
211 struct sockaddr_in *addr;
212 struct sockaddr_in6 *addr6;
213 uint32_t options = 0;
214 uint8_t ipaddr[IPv6_ADDR_LEN];
215 int rval;
216
217 memset(ipaddr, 0, IPv6_ADDR_LEN);
218 /* IPv4 to IPv4 */
219 if ((iface_type == ISCSI_IFACE_TYPE_IPV4) &&
220 (dst_addr->sa_family == AF_INET)) {
221 addr = (struct sockaddr_in *)dst_addr;
222 memcpy(ipaddr, &addr->sin_addr.s_addr, IP_ADDR_LEN);
223 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv4 Ping src: %pI4 "
224 "dest: %pI4\n", __func__,
225 &ha->ip_config.ip_address, ipaddr));
226 rval = qla4xxx_ping_iocb(ha, options, payload_size, pid,
227 ipaddr);
228 if (rval)
229 rval = -EINVAL;
230 } else if ((iface_type == ISCSI_IFACE_TYPE_IPV6) &&
231 (dst_addr->sa_family == AF_INET6)) {
232 /* IPv6 to IPv6 */
233 addr6 = (struct sockaddr_in6 *)dst_addr;
234 memcpy(ipaddr, &addr6->sin6_addr.in6_u.u6_addr8, IPv6_ADDR_LEN);
235
236 options |= PING_IPV6_PROTOCOL_ENABLE;
237
238 /* Ping using LinkLocal address */
239 if ((iface_num == 0) || (iface_num == 1)) {
240 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: LinkLocal Ping "
241 "src: %pI6 dest: %pI6\n", __func__,
242 &ha->ip_config.ipv6_link_local_addr,
243 ipaddr));
244 options |= PING_IPV6_LINKLOCAL_ADDR;
245 rval = qla4xxx_ping_iocb(ha, options, payload_size,
246 pid, ipaddr);
247 } else {
248 ql4_printk(KERN_WARNING, ha, "%s: iface num = %d "
249 "not supported\n", __func__, iface_num);
250 rval = -ENOSYS;
251 goto exit_send_ping;
252 }
253
254 /*
255 * If ping using LinkLocal address fails, try ping using
256 * IPv6 address
257 */
258 if (rval != QLA_SUCCESS) {
259 options &= ~PING_IPV6_LINKLOCAL_ADDR;
260 if (iface_num == 0) {
261 options |= PING_IPV6_ADDR0;
262 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv6 "
263 "Ping src: %pI6 "
264 "dest: %pI6\n", __func__,
265 &ha->ip_config.ipv6_addr0,
266 ipaddr));
267 } else if (iface_num == 1) {
268 options |= PING_IPV6_ADDR1;
269 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv6 "
270 "Ping src: %pI6 "
271 "dest: %pI6\n", __func__,
272 &ha->ip_config.ipv6_addr1,
273 ipaddr));
274 }
275 rval = qla4xxx_ping_iocb(ha, options, payload_size,
276 pid, ipaddr);
277 if (rval)
278 rval = -EINVAL;
279 }
280 } else
281 rval = -ENOSYS;
282exit_send_ping:
283 return rval;
284}
285
Al Viro587a1f12011-07-23 23:11:19 -0400286static umode_t ql4_attr_is_visible(int param_type, int param)
Mike Christie3128c6c2011-07-25 13:48:42 -0500287{
288 switch (param_type) {
Mike Christief27fb2e2011-07-25 13:48:45 -0500289 case ISCSI_HOST_PARAM:
290 switch (param) {
291 case ISCSI_HOST_PARAM_HWADDRESS:
292 case ISCSI_HOST_PARAM_IPADDRESS:
293 case ISCSI_HOST_PARAM_INITIATOR_NAME:
Vikas Chaudhary3254dbe2012-01-19 03:06:56 -0800294 case ISCSI_HOST_PARAM_PORT_STATE:
295 case ISCSI_HOST_PARAM_PORT_SPEED:
Mike Christief27fb2e2011-07-25 13:48:45 -0500296 return S_IRUGO;
297 default:
298 return 0;
299 }
Mike Christie3128c6c2011-07-25 13:48:42 -0500300 case ISCSI_PARAM:
301 switch (param) {
Mike Christie590134f2011-10-17 22:42:13 -0500302 case ISCSI_PARAM_PERSISTENT_ADDRESS:
303 case ISCSI_PARAM_PERSISTENT_PORT:
Mike Christie3128c6c2011-07-25 13:48:42 -0500304 case ISCSI_PARAM_CONN_ADDRESS:
305 case ISCSI_PARAM_CONN_PORT:
Mike Christie1d063c12011-07-25 13:48:43 -0500306 case ISCSI_PARAM_TARGET_NAME:
307 case ISCSI_PARAM_TPGT:
308 case ISCSI_PARAM_TARGET_ALIAS:
Manish Rangankarb3a271a2011-07-25 13:48:53 -0500309 case ISCSI_PARAM_MAX_BURST:
310 case ISCSI_PARAM_MAX_R2T:
311 case ISCSI_PARAM_FIRST_BURST:
312 case ISCSI_PARAM_MAX_RECV_DLENGTH:
313 case ISCSI_PARAM_MAX_XMIT_DLENGTH:
Mike Christiede379202011-08-14 20:42:56 -0500314 case ISCSI_PARAM_IFACE_NAME:
Mike Christie3128c6c2011-07-25 13:48:42 -0500315 return S_IRUGO;
316 default:
317 return 0;
318 }
Mike Christieb78dbba2011-07-25 13:48:44 -0500319 case ISCSI_NET_PARAM:
320 switch (param) {
321 case ISCSI_NET_PARAM_IPV4_ADDR:
322 case ISCSI_NET_PARAM_IPV4_SUBNET:
323 case ISCSI_NET_PARAM_IPV4_GW:
324 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
325 case ISCSI_NET_PARAM_IFACE_ENABLE:
326 case ISCSI_NET_PARAM_IPV6_LINKLOCAL:
327 case ISCSI_NET_PARAM_IPV6_ADDR:
328 case ISCSI_NET_PARAM_IPV6_ROUTER:
329 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG:
330 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG:
Vikas Chaudhary6ac73e82011-07-25 13:48:49 -0500331 case ISCSI_NET_PARAM_VLAN_ID:
332 case ISCSI_NET_PARAM_VLAN_PRIORITY:
333 case ISCSI_NET_PARAM_VLAN_ENABLED:
Vikas Chaudhary943c1572011-08-01 03:26:13 -0700334 case ISCSI_NET_PARAM_MTU:
Vikas Chaudhary2ada7fc2011-08-01 03:26:19 -0700335 case ISCSI_NET_PARAM_PORT:
Mike Christieb78dbba2011-07-25 13:48:44 -0500336 return S_IRUGO;
337 default:
338 return 0;
339 }
Mike Christie3128c6c2011-07-25 13:48:42 -0500340 }
341
342 return 0;
343}
344
Vikas Chaudharyed1086e2011-07-25 13:48:41 -0500345static int qla4xxx_get_iface_param(struct iscsi_iface *iface,
346 enum iscsi_param_type param_type,
347 int param, char *buf)
348{
349 struct Scsi_Host *shost = iscsi_iface_to_shost(iface);
350 struct scsi_qla_host *ha = to_qla_host(shost);
351 int len = -ENOSYS;
352
353 if (param_type != ISCSI_NET_PARAM)
354 return -ENOSYS;
355
356 switch (param) {
357 case ISCSI_NET_PARAM_IPV4_ADDR:
358 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address);
359 break;
360 case ISCSI_NET_PARAM_IPV4_SUBNET:
361 len = sprintf(buf, "%pI4\n", &ha->ip_config.subnet_mask);
362 break;
363 case ISCSI_NET_PARAM_IPV4_GW:
364 len = sprintf(buf, "%pI4\n", &ha->ip_config.gateway);
365 break;
366 case ISCSI_NET_PARAM_IFACE_ENABLE:
367 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
368 len = sprintf(buf, "%s\n",
369 (ha->ip_config.ipv4_options &
370 IPOPT_IPV4_PROTOCOL_ENABLE) ?
371 "enabled" : "disabled");
372 else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6)
373 len = sprintf(buf, "%s\n",
374 (ha->ip_config.ipv6_options &
375 IPV6_OPT_IPV6_PROTOCOL_ENABLE) ?
376 "enabled" : "disabled");
377 break;
378 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
379 len = sprintf(buf, "%s\n",
380 (ha->ip_config.tcp_options & TCPOPT_DHCP_ENABLE) ?
381 "dhcp" : "static");
382 break;
383 case ISCSI_NET_PARAM_IPV6_ADDR:
384 if (iface->iface_num == 0)
385 len = sprintf(buf, "%pI6\n", &ha->ip_config.ipv6_addr0);
386 if (iface->iface_num == 1)
387 len = sprintf(buf, "%pI6\n", &ha->ip_config.ipv6_addr1);
388 break;
389 case ISCSI_NET_PARAM_IPV6_LINKLOCAL:
390 len = sprintf(buf, "%pI6\n",
391 &ha->ip_config.ipv6_link_local_addr);
392 break;
393 case ISCSI_NET_PARAM_IPV6_ROUTER:
394 len = sprintf(buf, "%pI6\n",
395 &ha->ip_config.ipv6_default_router_addr);
396 break;
397 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG:
398 len = sprintf(buf, "%s\n",
399 (ha->ip_config.ipv6_addl_options &
400 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE) ?
401 "nd" : "static");
402 break;
403 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG:
404 len = sprintf(buf, "%s\n",
405 (ha->ip_config.ipv6_addl_options &
406 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR) ?
407 "auto" : "static");
408 break;
Vikas Chaudhary6ac73e82011-07-25 13:48:49 -0500409 case ISCSI_NET_PARAM_VLAN_ID:
410 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
411 len = sprintf(buf, "%d\n",
412 (ha->ip_config.ipv4_vlan_tag &
413 ISCSI_MAX_VLAN_ID));
414 else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6)
415 len = sprintf(buf, "%d\n",
416 (ha->ip_config.ipv6_vlan_tag &
417 ISCSI_MAX_VLAN_ID));
418 break;
419 case ISCSI_NET_PARAM_VLAN_PRIORITY:
420 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
421 len = sprintf(buf, "%d\n",
422 ((ha->ip_config.ipv4_vlan_tag >> 13) &
423 ISCSI_MAX_VLAN_PRIORITY));
424 else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6)
425 len = sprintf(buf, "%d\n",
426 ((ha->ip_config.ipv6_vlan_tag >> 13) &
427 ISCSI_MAX_VLAN_PRIORITY));
428 break;
429 case ISCSI_NET_PARAM_VLAN_ENABLED:
430 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
431 len = sprintf(buf, "%s\n",
432 (ha->ip_config.ipv4_options &
433 IPOPT_VLAN_TAGGING_ENABLE) ?
434 "enabled" : "disabled");
435 else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6)
436 len = sprintf(buf, "%s\n",
437 (ha->ip_config.ipv6_options &
438 IPV6_OPT_VLAN_TAGGING_ENABLE) ?
439 "enabled" : "disabled");
440 break;
Vikas Chaudhary943c1572011-08-01 03:26:13 -0700441 case ISCSI_NET_PARAM_MTU:
442 len = sprintf(buf, "%d\n", ha->ip_config.eth_mtu_size);
443 break;
Vikas Chaudhary2ada7fc2011-08-01 03:26:19 -0700444 case ISCSI_NET_PARAM_PORT:
445 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
446 len = sprintf(buf, "%d\n", ha->ip_config.ipv4_port);
447 else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6)
448 len = sprintf(buf, "%d\n", ha->ip_config.ipv6_port);
449 break;
Vikas Chaudharyed1086e2011-07-25 13:48:41 -0500450 default:
451 len = -ENOSYS;
452 }
453
454 return len;
455}
456
Manish Rangankarb3a271a2011-07-25 13:48:53 -0500457static struct iscsi_endpoint *
458qla4xxx_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr,
459 int non_blocking)
460{
461 int ret;
462 struct iscsi_endpoint *ep;
463 struct qla_endpoint *qla_ep;
464 struct scsi_qla_host *ha;
465 struct sockaddr_in *addr;
466 struct sockaddr_in6 *addr6;
467
468 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
469 if (!shost) {
470 ret = -ENXIO;
471 printk(KERN_ERR "%s: shost is NULL\n",
472 __func__);
473 return ERR_PTR(ret);
474 }
475
476 ha = iscsi_host_priv(shost);
477
478 ep = iscsi_create_endpoint(sizeof(struct qla_endpoint));
479 if (!ep) {
480 ret = -ENOMEM;
481 return ERR_PTR(ret);
482 }
483
484 qla_ep = ep->dd_data;
485 memset(qla_ep, 0, sizeof(struct qla_endpoint));
486 if (dst_addr->sa_family == AF_INET) {
487 memcpy(&qla_ep->dst_addr, dst_addr, sizeof(struct sockaddr_in));
488 addr = (struct sockaddr_in *)&qla_ep->dst_addr;
489 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI4\n", __func__,
490 (char *)&addr->sin_addr));
491 } else if (dst_addr->sa_family == AF_INET6) {
492 memcpy(&qla_ep->dst_addr, dst_addr,
493 sizeof(struct sockaddr_in6));
494 addr6 = (struct sockaddr_in6 *)&qla_ep->dst_addr;
495 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI6\n", __func__,
496 (char *)&addr6->sin6_addr));
497 }
498
499 qla_ep->host = shost;
500
501 return ep;
502}
503
504static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms)
505{
506 struct qla_endpoint *qla_ep;
507 struct scsi_qla_host *ha;
508 int ret = 0;
509
510 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
511 qla_ep = ep->dd_data;
512 ha = to_qla_host(qla_ep->host);
513
Mike Christie13483732011-12-01 21:38:41 -0600514 if (adapter_up(ha) && !test_bit(AF_BUILD_DDB_LIST, &ha->flags))
Manish Rangankarb3a271a2011-07-25 13:48:53 -0500515 ret = 1;
516
517 return ret;
518}
519
520static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep)
521{
522 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
523 iscsi_destroy_endpoint(ep);
524}
525
526static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep,
527 enum iscsi_param param,
528 char *buf)
529{
530 struct qla_endpoint *qla_ep = ep->dd_data;
531 struct sockaddr *dst_addr;
532
533 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
534
535 switch (param) {
536 case ISCSI_PARAM_CONN_PORT:
537 case ISCSI_PARAM_CONN_ADDRESS:
538 if (!qla_ep)
539 return -ENOTCONN;
540
541 dst_addr = (struct sockaddr *)&qla_ep->dst_addr;
542 if (!dst_addr)
543 return -ENOTCONN;
544
545 return iscsi_conn_get_addr_param((struct sockaddr_storage *)
546 &qla_ep->dst_addr, param, buf);
547 default:
548 return -ENOSYS;
549 }
550}
551
552static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn,
553 struct iscsi_stats *stats)
554{
555 struct iscsi_session *sess;
556 struct iscsi_cls_session *cls_sess;
557 struct ddb_entry *ddb_entry;
558 struct scsi_qla_host *ha;
559 struct ql_iscsi_stats *ql_iscsi_stats;
560 int stats_size;
561 int ret;
562 dma_addr_t iscsi_stats_dma;
563
564 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
565
566 cls_sess = iscsi_conn_to_session(cls_conn);
567 sess = cls_sess->dd_data;
568 ddb_entry = sess->dd_data;
569 ha = ddb_entry->ha;
570
571 stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats));
572 /* Allocate memory */
573 ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size,
574 &iscsi_stats_dma, GFP_KERNEL);
575 if (!ql_iscsi_stats) {
576 ql4_printk(KERN_ERR, ha,
577 "Unable to allocate memory for iscsi stats\n");
578 goto exit_get_stats;
579 }
580
581 ret = qla4xxx_get_mgmt_data(ha, ddb_entry->fw_ddb_index, stats_size,
582 iscsi_stats_dma);
583 if (ret != QLA_SUCCESS) {
584 ql4_printk(KERN_ERR, ha,
585 "Unable to retreive iscsi stats\n");
586 goto free_stats;
587 }
588
589 /* octets */
590 stats->txdata_octets = le64_to_cpu(ql_iscsi_stats->tx_data_octets);
591 stats->rxdata_octets = le64_to_cpu(ql_iscsi_stats->rx_data_octets);
592 /* xmit pdus */
593 stats->noptx_pdus = le32_to_cpu(ql_iscsi_stats->tx_nopout_pdus);
594 stats->scsicmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_cmd_pdus);
595 stats->tmfcmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_tmf_cmd_pdus);
596 stats->login_pdus = le32_to_cpu(ql_iscsi_stats->tx_login_cmd_pdus);
597 stats->text_pdus = le32_to_cpu(ql_iscsi_stats->tx_text_cmd_pdus);
598 stats->dataout_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_write_pdus);
599 stats->logout_pdus = le32_to_cpu(ql_iscsi_stats->tx_logout_cmd_pdus);
600 stats->snack_pdus = le32_to_cpu(ql_iscsi_stats->tx_snack_req_pdus);
601 /* recv pdus */
602 stats->noprx_pdus = le32_to_cpu(ql_iscsi_stats->rx_nopin_pdus);
603 stats->scsirsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_resp_pdus);
604 stats->tmfrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_tmf_resp_pdus);
605 stats->textrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_text_resp_pdus);
606 stats->datain_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_read_pdus);
607 stats->logoutrsp_pdus =
608 le32_to_cpu(ql_iscsi_stats->rx_logout_resp_pdus);
609 stats->r2t_pdus = le32_to_cpu(ql_iscsi_stats->rx_r2t_pdus);
610 stats->async_pdus = le32_to_cpu(ql_iscsi_stats->rx_async_pdus);
611 stats->rjt_pdus = le32_to_cpu(ql_iscsi_stats->rx_reject_pdus);
612
613free_stats:
614 dma_free_coherent(&ha->pdev->dev, stats_size, ql_iscsi_stats,
615 iscsi_stats_dma);
616exit_get_stats:
617 return;
618}
619
Mike Christie5c656af2009-07-15 15:02:59 -0500620static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc)
621{
622 struct iscsi_cls_session *session;
Manish Rangankarb3a271a2011-07-25 13:48:53 -0500623 struct iscsi_session *sess;
624 unsigned long flags;
625 enum blk_eh_timer_return ret = BLK_EH_NOT_HANDLED;
Mike Christie5c656af2009-07-15 15:02:59 -0500626
627 session = starget_to_session(scsi_target(sc->device));
Manish Rangankarb3a271a2011-07-25 13:48:53 -0500628 sess = session->dd_data;
Mike Christie5c656af2009-07-15 15:02:59 -0500629
Manish Rangankarb3a271a2011-07-25 13:48:53 -0500630 spin_lock_irqsave(&session->lock, flags);
631 if (session->state == ISCSI_SESSION_FAILED)
632 ret = BLK_EH_RESET_TIMER;
633 spin_unlock_irqrestore(&session->lock, flags);
Mike Christie5c656af2009-07-15 15:02:59 -0500634
Manish Rangankarb3a271a2011-07-25 13:48:53 -0500635 return ret;
David Somayajuluafaf5a22006-09-19 10:28:00 -0700636}
637
Vikas Chaudhary3254dbe2012-01-19 03:06:56 -0800638static void qla4xxx_set_port_speed(struct Scsi_Host *shost)
639{
640 struct scsi_qla_host *ha = to_qla_host(shost);
641 struct iscsi_cls_host *ihost = shost_priv(shost);
642 uint32_t speed = ISCSI_PORT_SPEED_UNKNOWN;
643
644 qla4xxx_get_firmware_state(ha);
645
646 switch (ha->addl_fw_state & 0x0F00) {
647 case FW_ADDSTATE_LINK_SPEED_10MBPS:
648 speed = ISCSI_PORT_SPEED_10MBPS;
649 break;
650 case FW_ADDSTATE_LINK_SPEED_100MBPS:
651 speed = ISCSI_PORT_SPEED_100MBPS;
652 break;
653 case FW_ADDSTATE_LINK_SPEED_1GBPS:
654 speed = ISCSI_PORT_SPEED_1GBPS;
655 break;
656 case FW_ADDSTATE_LINK_SPEED_10GBPS:
657 speed = ISCSI_PORT_SPEED_10GBPS;
658 break;
659 }
660 ihost->port_speed = speed;
661}
662
663static void qla4xxx_set_port_state(struct Scsi_Host *shost)
664{
665 struct scsi_qla_host *ha = to_qla_host(shost);
666 struct iscsi_cls_host *ihost = shost_priv(shost);
667 uint32_t state = ISCSI_PORT_STATE_DOWN;
668
669 if (test_bit(AF_LINK_UP, &ha->flags))
670 state = ISCSI_PORT_STATE_UP;
671
672 ihost->port_state = state;
673}
674
Mike Christieaa1e93a2007-05-30 12:57:09 -0500675static int qla4xxx_host_get_param(struct Scsi_Host *shost,
676 enum iscsi_host_param param, char *buf)
677{
678 struct scsi_qla_host *ha = to_qla_host(shost);
679 int len;
680
681 switch (param) {
682 case ISCSI_HOST_PARAM_HWADDRESS:
Michael Chan7ffc49a2007-12-24 21:28:09 -0800683 len = sysfs_format_mac(buf, ha->my_mac, MAC_ADDR_LEN);
Mike Christieaa1e93a2007-05-30 12:57:09 -0500684 break;
Mike Christie22236962007-05-30 12:57:24 -0500685 case ISCSI_HOST_PARAM_IPADDRESS:
Vikas Chaudhary2bab08f2011-07-25 13:48:39 -0500686 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address);
Mike Christie22236962007-05-30 12:57:24 -0500687 break;
Mike Christie8ad57812007-05-30 12:57:13 -0500688 case ISCSI_HOST_PARAM_INITIATOR_NAME:
Mike Christie22236962007-05-30 12:57:24 -0500689 len = sprintf(buf, "%s\n", ha->name_string);
Mike Christie8ad57812007-05-30 12:57:13 -0500690 break;
Vikas Chaudhary3254dbe2012-01-19 03:06:56 -0800691 case ISCSI_HOST_PARAM_PORT_STATE:
692 qla4xxx_set_port_state(shost);
693 len = sprintf(buf, "%s\n", iscsi_get_port_state_name(shost));
694 break;
695 case ISCSI_HOST_PARAM_PORT_SPEED:
696 qla4xxx_set_port_speed(shost);
697 len = sprintf(buf, "%s\n", iscsi_get_port_speed_name(shost));
698 break;
Mike Christieaa1e93a2007-05-30 12:57:09 -0500699 default:
700 return -ENOSYS;
701 }
702
703 return len;
704}
705
Vikas Chaudharyed1086e2011-07-25 13:48:41 -0500706static void qla4xxx_create_ipv4_iface(struct scsi_qla_host *ha)
707{
708 if (ha->iface_ipv4)
709 return;
710
711 /* IPv4 */
712 ha->iface_ipv4 = iscsi_create_iface(ha->host,
713 &qla4xxx_iscsi_transport,
714 ISCSI_IFACE_TYPE_IPV4, 0, 0);
715 if (!ha->iface_ipv4)
716 ql4_printk(KERN_ERR, ha, "Could not create IPv4 iSCSI "
717 "iface0.\n");
718}
719
720static void qla4xxx_create_ipv6_iface(struct scsi_qla_host *ha)
721{
722 if (!ha->iface_ipv6_0)
723 /* IPv6 iface-0 */
724 ha->iface_ipv6_0 = iscsi_create_iface(ha->host,
725 &qla4xxx_iscsi_transport,
726 ISCSI_IFACE_TYPE_IPV6, 0,
727 0);
728 if (!ha->iface_ipv6_0)
729 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI "
730 "iface0.\n");
731
732 if (!ha->iface_ipv6_1)
733 /* IPv6 iface-1 */
734 ha->iface_ipv6_1 = iscsi_create_iface(ha->host,
735 &qla4xxx_iscsi_transport,
736 ISCSI_IFACE_TYPE_IPV6, 1,
737 0);
738 if (!ha->iface_ipv6_1)
739 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI "
740 "iface1.\n");
741}
742
743static void qla4xxx_create_ifaces(struct scsi_qla_host *ha)
744{
745 if (ha->ip_config.ipv4_options & IPOPT_IPV4_PROTOCOL_ENABLE)
746 qla4xxx_create_ipv4_iface(ha);
747
748 if (ha->ip_config.ipv6_options & IPV6_OPT_IPV6_PROTOCOL_ENABLE)
749 qla4xxx_create_ipv6_iface(ha);
750}
751
752static void qla4xxx_destroy_ipv4_iface(struct scsi_qla_host *ha)
753{
754 if (ha->iface_ipv4) {
755 iscsi_destroy_iface(ha->iface_ipv4);
756 ha->iface_ipv4 = NULL;
757 }
758}
759
760static void qla4xxx_destroy_ipv6_iface(struct scsi_qla_host *ha)
761{
762 if (ha->iface_ipv6_0) {
763 iscsi_destroy_iface(ha->iface_ipv6_0);
764 ha->iface_ipv6_0 = NULL;
765 }
766 if (ha->iface_ipv6_1) {
767 iscsi_destroy_iface(ha->iface_ipv6_1);
768 ha->iface_ipv6_1 = NULL;
769 }
770}
771
772static void qla4xxx_destroy_ifaces(struct scsi_qla_host *ha)
773{
774 qla4xxx_destroy_ipv4_iface(ha);
775 qla4xxx_destroy_ipv6_iface(ha);
776}
777
Mike Christied00efe32011-07-25 13:48:38 -0500778static void qla4xxx_set_ipv6(struct scsi_qla_host *ha,
779 struct iscsi_iface_param_info *iface_param,
780 struct addr_ctrl_blk *init_fw_cb)
781{
782 /*
783 * iface_num 0 is valid for IPv6 Addr, linklocal, router, autocfg.
784 * iface_num 1 is valid only for IPv6 Addr.
785 */
786 switch (iface_param->param) {
787 case ISCSI_NET_PARAM_IPV6_ADDR:
788 if (iface_param->iface_num & 0x1)
789 /* IPv6 Addr 1 */
790 memcpy(init_fw_cb->ipv6_addr1, iface_param->value,
791 sizeof(init_fw_cb->ipv6_addr1));
792 else
793 /* IPv6 Addr 0 */
794 memcpy(init_fw_cb->ipv6_addr0, iface_param->value,
795 sizeof(init_fw_cb->ipv6_addr0));
796 break;
797 case ISCSI_NET_PARAM_IPV6_LINKLOCAL:
798 if (iface_param->iface_num & 0x1)
799 break;
800 memcpy(init_fw_cb->ipv6_if_id, &iface_param->value[8],
801 sizeof(init_fw_cb->ipv6_if_id));
802 break;
803 case ISCSI_NET_PARAM_IPV6_ROUTER:
804 if (iface_param->iface_num & 0x1)
805 break;
806 memcpy(init_fw_cb->ipv6_dflt_rtr_addr, iface_param->value,
807 sizeof(init_fw_cb->ipv6_dflt_rtr_addr));
808 break;
809 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG:
810 /* Autocfg applies to even interface */
811 if (iface_param->iface_num & 0x1)
812 break;
813
814 if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_DISABLE)
815 init_fw_cb->ipv6_addtl_opts &=
816 cpu_to_le16(
817 ~IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE);
818 else if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_ND_ENABLE)
819 init_fw_cb->ipv6_addtl_opts |=
820 cpu_to_le16(
821 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE);
822 else
823 ql4_printk(KERN_ERR, ha, "Invalid autocfg setting for "
824 "IPv6 addr\n");
825 break;
826 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG:
827 /* Autocfg applies to even interface */
828 if (iface_param->iface_num & 0x1)
829 break;
830
831 if (iface_param->value[0] ==
832 ISCSI_IPV6_LINKLOCAL_AUTOCFG_ENABLE)
833 init_fw_cb->ipv6_addtl_opts |= cpu_to_le16(
834 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR);
835 else if (iface_param->value[0] ==
836 ISCSI_IPV6_LINKLOCAL_AUTOCFG_DISABLE)
837 init_fw_cb->ipv6_addtl_opts &= cpu_to_le16(
838 ~IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR);
839 else
840 ql4_printk(KERN_ERR, ha, "Invalid autocfg setting for "
841 "IPv6 linklocal addr\n");
842 break;
843 case ISCSI_NET_PARAM_IPV6_ROUTER_AUTOCFG:
844 /* Autocfg applies to even interface */
845 if (iface_param->iface_num & 0x1)
846 break;
847
848 if (iface_param->value[0] == ISCSI_IPV6_ROUTER_AUTOCFG_ENABLE)
849 memset(init_fw_cb->ipv6_dflt_rtr_addr, 0,
850 sizeof(init_fw_cb->ipv6_dflt_rtr_addr));
851 break;
852 case ISCSI_NET_PARAM_IFACE_ENABLE:
Vikas Chaudharyed1086e2011-07-25 13:48:41 -0500853 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) {
Mike Christied00efe32011-07-25 13:48:38 -0500854 init_fw_cb->ipv6_opts |=
855 cpu_to_le16(IPV6_OPT_IPV6_PROTOCOL_ENABLE);
Vikas Chaudharyed1086e2011-07-25 13:48:41 -0500856 qla4xxx_create_ipv6_iface(ha);
857 } else {
Mike Christied00efe32011-07-25 13:48:38 -0500858 init_fw_cb->ipv6_opts &=
859 cpu_to_le16(~IPV6_OPT_IPV6_PROTOCOL_ENABLE &
860 0xFFFF);
Vikas Chaudharyed1086e2011-07-25 13:48:41 -0500861 qla4xxx_destroy_ipv6_iface(ha);
862 }
Mike Christied00efe32011-07-25 13:48:38 -0500863 break;
Mike Christie2d636732011-10-11 17:55:11 -0500864 case ISCSI_NET_PARAM_VLAN_TAG:
Mike Christied00efe32011-07-25 13:48:38 -0500865 if (iface_param->len != sizeof(init_fw_cb->ipv6_vlan_tag))
866 break;
Vikas Chaudhary6ac73e82011-07-25 13:48:49 -0500867 init_fw_cb->ipv6_vlan_tag =
868 cpu_to_be16(*(uint16_t *)iface_param->value);
869 break;
870 case ISCSI_NET_PARAM_VLAN_ENABLED:
871 if (iface_param->value[0] == ISCSI_VLAN_ENABLE)
872 init_fw_cb->ipv6_opts |=
873 cpu_to_le16(IPV6_OPT_VLAN_TAGGING_ENABLE);
874 else
875 init_fw_cb->ipv6_opts &=
876 cpu_to_le16(~IPV6_OPT_VLAN_TAGGING_ENABLE);
Mike Christied00efe32011-07-25 13:48:38 -0500877 break;
Vikas Chaudhary943c1572011-08-01 03:26:13 -0700878 case ISCSI_NET_PARAM_MTU:
879 init_fw_cb->eth_mtu_size =
880 cpu_to_le16(*(uint16_t *)iface_param->value);
881 break;
Vikas Chaudhary2ada7fc2011-08-01 03:26:19 -0700882 case ISCSI_NET_PARAM_PORT:
883 /* Autocfg applies to even interface */
884 if (iface_param->iface_num & 0x1)
885 break;
886
887 init_fw_cb->ipv6_port =
888 cpu_to_le16(*(uint16_t *)iface_param->value);
889 break;
Mike Christied00efe32011-07-25 13:48:38 -0500890 default:
891 ql4_printk(KERN_ERR, ha, "Unknown IPv6 param = %d\n",
892 iface_param->param);
893 break;
894 }
895}
896
897static void qla4xxx_set_ipv4(struct scsi_qla_host *ha,
898 struct iscsi_iface_param_info *iface_param,
899 struct addr_ctrl_blk *init_fw_cb)
900{
901 switch (iface_param->param) {
902 case ISCSI_NET_PARAM_IPV4_ADDR:
903 memcpy(init_fw_cb->ipv4_addr, iface_param->value,
904 sizeof(init_fw_cb->ipv4_addr));
905 break;
906 case ISCSI_NET_PARAM_IPV4_SUBNET:
907 memcpy(init_fw_cb->ipv4_subnet, iface_param->value,
908 sizeof(init_fw_cb->ipv4_subnet));
909 break;
910 case ISCSI_NET_PARAM_IPV4_GW:
911 memcpy(init_fw_cb->ipv4_gw_addr, iface_param->value,
912 sizeof(init_fw_cb->ipv4_gw_addr));
913 break;
914 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
915 if (iface_param->value[0] == ISCSI_BOOTPROTO_DHCP)
916 init_fw_cb->ipv4_tcp_opts |=
917 cpu_to_le16(TCPOPT_DHCP_ENABLE);
918 else if (iface_param->value[0] == ISCSI_BOOTPROTO_STATIC)
919 init_fw_cb->ipv4_tcp_opts &=
920 cpu_to_le16(~TCPOPT_DHCP_ENABLE);
921 else
922 ql4_printk(KERN_ERR, ha, "Invalid IPv4 bootproto\n");
923 break;
924 case ISCSI_NET_PARAM_IFACE_ENABLE:
Vikas Chaudharyed1086e2011-07-25 13:48:41 -0500925 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) {
Mike Christied00efe32011-07-25 13:48:38 -0500926 init_fw_cb->ipv4_ip_opts |=
Vikas Chaudhary2bab08f2011-07-25 13:48:39 -0500927 cpu_to_le16(IPOPT_IPV4_PROTOCOL_ENABLE);
Vikas Chaudharyed1086e2011-07-25 13:48:41 -0500928 qla4xxx_create_ipv4_iface(ha);
929 } else {
Mike Christied00efe32011-07-25 13:48:38 -0500930 init_fw_cb->ipv4_ip_opts &=
Vikas Chaudhary2bab08f2011-07-25 13:48:39 -0500931 cpu_to_le16(~IPOPT_IPV4_PROTOCOL_ENABLE &
Mike Christied00efe32011-07-25 13:48:38 -0500932 0xFFFF);
Vikas Chaudharyed1086e2011-07-25 13:48:41 -0500933 qla4xxx_destroy_ipv4_iface(ha);
934 }
Mike Christied00efe32011-07-25 13:48:38 -0500935 break;
Mike Christie2d636732011-10-11 17:55:11 -0500936 case ISCSI_NET_PARAM_VLAN_TAG:
Mike Christied00efe32011-07-25 13:48:38 -0500937 if (iface_param->len != sizeof(init_fw_cb->ipv4_vlan_tag))
938 break;
Vikas Chaudhary6ac73e82011-07-25 13:48:49 -0500939 init_fw_cb->ipv4_vlan_tag =
940 cpu_to_be16(*(uint16_t *)iface_param->value);
941 break;
942 case ISCSI_NET_PARAM_VLAN_ENABLED:
943 if (iface_param->value[0] == ISCSI_VLAN_ENABLE)
944 init_fw_cb->ipv4_ip_opts |=
945 cpu_to_le16(IPOPT_VLAN_TAGGING_ENABLE);
946 else
947 init_fw_cb->ipv4_ip_opts &=
948 cpu_to_le16(~IPOPT_VLAN_TAGGING_ENABLE);
Mike Christied00efe32011-07-25 13:48:38 -0500949 break;
Vikas Chaudhary943c1572011-08-01 03:26:13 -0700950 case ISCSI_NET_PARAM_MTU:
951 init_fw_cb->eth_mtu_size =
952 cpu_to_le16(*(uint16_t *)iface_param->value);
953 break;
Vikas Chaudhary2ada7fc2011-08-01 03:26:19 -0700954 case ISCSI_NET_PARAM_PORT:
955 init_fw_cb->ipv4_port =
956 cpu_to_le16(*(uint16_t *)iface_param->value);
957 break;
Mike Christied00efe32011-07-25 13:48:38 -0500958 default:
959 ql4_printk(KERN_ERR, ha, "Unknown IPv4 param = %d\n",
960 iface_param->param);
961 break;
962 }
963}
964
965static void
966qla4xxx_initcb_to_acb(struct addr_ctrl_blk *init_fw_cb)
967{
968 struct addr_ctrl_blk_def *acb;
969 acb = (struct addr_ctrl_blk_def *)init_fw_cb;
970 memset(acb->reserved1, 0, sizeof(acb->reserved1));
971 memset(acb->reserved2, 0, sizeof(acb->reserved2));
972 memset(acb->reserved3, 0, sizeof(acb->reserved3));
973 memset(acb->reserved4, 0, sizeof(acb->reserved4));
974 memset(acb->reserved5, 0, sizeof(acb->reserved5));
975 memset(acb->reserved6, 0, sizeof(acb->reserved6));
976 memset(acb->reserved7, 0, sizeof(acb->reserved7));
977 memset(acb->reserved8, 0, sizeof(acb->reserved8));
978 memset(acb->reserved9, 0, sizeof(acb->reserved9));
979 memset(acb->reserved10, 0, sizeof(acb->reserved10));
980 memset(acb->reserved11, 0, sizeof(acb->reserved11));
981 memset(acb->reserved12, 0, sizeof(acb->reserved12));
982 memset(acb->reserved13, 0, sizeof(acb->reserved13));
983 memset(acb->reserved14, 0, sizeof(acb->reserved14));
984 memset(acb->reserved15, 0, sizeof(acb->reserved15));
985}
986
987static int
Mike Christie00c31882011-10-06 03:56:59 -0500988qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data, uint32_t len)
Mike Christied00efe32011-07-25 13:48:38 -0500989{
990 struct scsi_qla_host *ha = to_qla_host(shost);
991 int rval = 0;
992 struct iscsi_iface_param_info *iface_param = NULL;
993 struct addr_ctrl_blk *init_fw_cb = NULL;
994 dma_addr_t init_fw_cb_dma;
995 uint32_t mbox_cmd[MBOX_REG_COUNT];
996 uint32_t mbox_sts[MBOX_REG_COUNT];
Mike Christie00c31882011-10-06 03:56:59 -0500997 uint32_t rem = len;
998 struct nlattr *attr;
Mike Christied00efe32011-07-25 13:48:38 -0500999
1000 init_fw_cb = dma_alloc_coherent(&ha->pdev->dev,
1001 sizeof(struct addr_ctrl_blk),
1002 &init_fw_cb_dma, GFP_KERNEL);
1003 if (!init_fw_cb) {
1004 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc init_cb\n",
1005 __func__);
1006 return -ENOMEM;
1007 }
1008
1009 memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk));
1010 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1011 memset(&mbox_sts, 0, sizeof(mbox_sts));
1012
1013 if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma)) {
1014 ql4_printk(KERN_ERR, ha, "%s: get ifcb failed\n", __func__);
1015 rval = -EIO;
1016 goto exit_init_fw_cb;
1017 }
1018
Mike Christie00c31882011-10-06 03:56:59 -05001019 nla_for_each_attr(attr, data, len, rem) {
1020 iface_param = nla_data(attr);
Mike Christied00efe32011-07-25 13:48:38 -05001021
1022 if (iface_param->param_type != ISCSI_NET_PARAM)
1023 continue;
1024
1025 switch (iface_param->iface_type) {
1026 case ISCSI_IFACE_TYPE_IPV4:
1027 switch (iface_param->iface_num) {
1028 case 0:
1029 qla4xxx_set_ipv4(ha, iface_param, init_fw_cb);
1030 break;
1031 default:
1032 /* Cannot have more than one IPv4 interface */
1033 ql4_printk(KERN_ERR, ha, "Invalid IPv4 iface "
1034 "number = %d\n",
1035 iface_param->iface_num);
1036 break;
1037 }
1038 break;
1039 case ISCSI_IFACE_TYPE_IPV6:
1040 switch (iface_param->iface_num) {
1041 case 0:
1042 case 1:
1043 qla4xxx_set_ipv6(ha, iface_param, init_fw_cb);
1044 break;
1045 default:
1046 /* Cannot have more than two IPv6 interface */
1047 ql4_printk(KERN_ERR, ha, "Invalid IPv6 iface "
1048 "number = %d\n",
1049 iface_param->iface_num);
1050 break;
1051 }
1052 break;
1053 default:
1054 ql4_printk(KERN_ERR, ha, "Invalid iface type\n");
1055 break;
1056 }
Mike Christied00efe32011-07-25 13:48:38 -05001057 }
1058
1059 init_fw_cb->cookie = cpu_to_le32(0x11BEAD5A);
1060
1061 rval = qla4xxx_set_flash(ha, init_fw_cb_dma, FLASH_SEGMENT_IFCB,
1062 sizeof(struct addr_ctrl_blk),
1063 FLASH_OPT_RMW_COMMIT);
1064 if (rval != QLA_SUCCESS) {
1065 ql4_printk(KERN_ERR, ha, "%s: set flash mbx failed\n",
1066 __func__);
1067 rval = -EIO;
1068 goto exit_init_fw_cb;
1069 }
1070
Vikas Chaudharyce505f92011-12-01 22:42:10 -08001071 rval = qla4xxx_disable_acb(ha);
1072 if (rval != QLA_SUCCESS) {
1073 ql4_printk(KERN_ERR, ha, "%s: disable acb mbx failed\n",
1074 __func__);
1075 rval = -EIO;
1076 goto exit_init_fw_cb;
1077 }
1078
1079 wait_for_completion_timeout(&ha->disable_acb_comp,
1080 DISABLE_ACB_TOV * HZ);
Mike Christied00efe32011-07-25 13:48:38 -05001081
1082 qla4xxx_initcb_to_acb(init_fw_cb);
1083
1084 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma);
1085 if (rval != QLA_SUCCESS) {
1086 ql4_printk(KERN_ERR, ha, "%s: set acb mbx failed\n",
1087 __func__);
1088 rval = -EIO;
1089 goto exit_init_fw_cb;
1090 }
1091
1092 memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk));
1093 qla4xxx_update_local_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb,
1094 init_fw_cb_dma);
1095
1096exit_init_fw_cb:
1097 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk),
1098 init_fw_cb, init_fw_cb_dma);
1099
1100 return rval;
1101}
1102
Manish Rangankarb3a271a2011-07-25 13:48:53 -05001103static int qla4xxx_conn_get_param(struct iscsi_cls_conn *cls_conn,
David Somayajuluafaf5a22006-09-19 10:28:00 -07001104 enum iscsi_param param, char *buf)
1105{
Manish Rangankarb3a271a2011-07-25 13:48:53 -05001106 struct iscsi_conn *conn;
1107 struct qla_conn *qla_conn;
1108 struct sockaddr *dst_addr;
1109 int len = 0;
David Somayajuluafaf5a22006-09-19 10:28:00 -07001110
Manish Rangankarb3a271a2011-07-25 13:48:53 -05001111 conn = cls_conn->dd_data;
1112 qla_conn = conn->dd_data;
1113 dst_addr = &qla_conn->qla_ep->dst_addr;
David Somayajuluafaf5a22006-09-19 10:28:00 -07001114
1115 switch (param) {
1116 case ISCSI_PARAM_CONN_PORT:
David Somayajuluafaf5a22006-09-19 10:28:00 -07001117 case ISCSI_PARAM_CONN_ADDRESS:
Manish Rangankarb3a271a2011-07-25 13:48:53 -05001118 return iscsi_conn_get_addr_param((struct sockaddr_storage *)
1119 dst_addr, param, buf);
David Somayajuluafaf5a22006-09-19 10:28:00 -07001120 default:
Manish Rangankarb3a271a2011-07-25 13:48:53 -05001121 return iscsi_conn_get_param(cls_conn, param, buf);
David Somayajuluafaf5a22006-09-19 10:28:00 -07001122 }
1123
1124 return len;
Manish Rangankarb3a271a2011-07-25 13:48:53 -05001125
David Somayajuluafaf5a22006-09-19 10:28:00 -07001126}
1127
Mike Christie13483732011-12-01 21:38:41 -06001128int qla4xxx_get_ddb_index(struct scsi_qla_host *ha, uint16_t *ddb_index)
1129{
1130 uint32_t mbx_sts = 0;
1131 uint16_t tmp_ddb_index;
1132 int ret;
1133
1134get_ddb_index:
1135 tmp_ddb_index = find_first_zero_bit(ha->ddb_idx_map, MAX_DDB_ENTRIES);
1136
1137 if (tmp_ddb_index >= MAX_DDB_ENTRIES) {
1138 DEBUG2(ql4_printk(KERN_INFO, ha,
1139 "Free DDB index not available\n"));
1140 ret = QLA_ERROR;
1141 goto exit_get_ddb_index;
1142 }
1143
1144 if (test_and_set_bit(tmp_ddb_index, ha->ddb_idx_map))
1145 goto get_ddb_index;
1146
1147 DEBUG2(ql4_printk(KERN_INFO, ha,
1148 "Found a free DDB index at %d\n", tmp_ddb_index));
1149 ret = qla4xxx_req_ddb_entry(ha, tmp_ddb_index, &mbx_sts);
1150 if (ret == QLA_ERROR) {
1151 if (mbx_sts == MBOX_STS_COMMAND_ERROR) {
1152 ql4_printk(KERN_INFO, ha,
1153 "DDB index = %d not available trying next\n",
1154 tmp_ddb_index);
1155 goto get_ddb_index;
1156 }
1157 DEBUG2(ql4_printk(KERN_INFO, ha,
1158 "Free FW DDB not available\n"));
1159 }
1160
1161 *ddb_index = tmp_ddb_index;
1162
1163exit_get_ddb_index:
1164 return ret;
1165}
1166
1167static int qla4xxx_match_ipaddress(struct scsi_qla_host *ha,
1168 struct ddb_entry *ddb_entry,
1169 char *existing_ipaddr,
1170 char *user_ipaddr)
1171{
1172 uint8_t dst_ipaddr[IPv6_ADDR_LEN];
1173 char formatted_ipaddr[DDB_IPADDR_LEN];
1174 int status = QLA_SUCCESS, ret = 0;
1175
1176 if (ddb_entry->fw_ddb_entry.options & DDB_OPT_IPV6_DEVICE) {
1177 ret = in6_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr,
1178 '\0', NULL);
1179 if (ret == 0) {
1180 status = QLA_ERROR;
1181 goto out_match;
1182 }
1183 ret = sprintf(formatted_ipaddr, "%pI6", dst_ipaddr);
1184 } else {
1185 ret = in4_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr,
1186 '\0', NULL);
1187 if (ret == 0) {
1188 status = QLA_ERROR;
1189 goto out_match;
1190 }
1191 ret = sprintf(formatted_ipaddr, "%pI4", dst_ipaddr);
1192 }
1193
1194 if (strcmp(existing_ipaddr, formatted_ipaddr))
1195 status = QLA_ERROR;
1196
1197out_match:
1198 return status;
1199}
1200
1201static int qla4xxx_match_fwdb_session(struct scsi_qla_host *ha,
1202 struct iscsi_cls_conn *cls_conn)
1203{
1204 int idx = 0, max_ddbs, rval;
1205 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
1206 struct iscsi_session *sess, *existing_sess;
1207 struct iscsi_conn *conn, *existing_conn;
1208 struct ddb_entry *ddb_entry;
1209
1210 sess = cls_sess->dd_data;
1211 conn = cls_conn->dd_data;
1212
1213 if (sess->targetname == NULL ||
1214 conn->persistent_address == NULL ||
1215 conn->persistent_port == 0)
1216 return QLA_ERROR;
1217
1218 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
1219 MAX_DEV_DB_ENTRIES;
1220
1221 for (idx = 0; idx < max_ddbs; idx++) {
1222 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
1223 if (ddb_entry == NULL)
1224 continue;
1225
1226 if (ddb_entry->ddb_type != FLASH_DDB)
1227 continue;
1228
1229 existing_sess = ddb_entry->sess->dd_data;
1230 existing_conn = ddb_entry->conn->dd_data;
1231
1232 if (existing_sess->targetname == NULL ||
1233 existing_conn->persistent_address == NULL ||
1234 existing_conn->persistent_port == 0)
1235 continue;
1236
1237 DEBUG2(ql4_printk(KERN_INFO, ha,
1238 "IQN = %s User IQN = %s\n",
1239 existing_sess->targetname,
1240 sess->targetname));
1241
1242 DEBUG2(ql4_printk(KERN_INFO, ha,
1243 "IP = %s User IP = %s\n",
1244 existing_conn->persistent_address,
1245 conn->persistent_address));
1246
1247 DEBUG2(ql4_printk(KERN_INFO, ha,
1248 "Port = %d User Port = %d\n",
1249 existing_conn->persistent_port,
1250 conn->persistent_port));
1251
1252 if (strcmp(existing_sess->targetname, sess->targetname))
1253 continue;
1254 rval = qla4xxx_match_ipaddress(ha, ddb_entry,
1255 existing_conn->persistent_address,
1256 conn->persistent_address);
1257 if (rval == QLA_ERROR)
1258 continue;
1259 if (existing_conn->persistent_port != conn->persistent_port)
1260 continue;
1261 break;
1262 }
1263
1264 if (idx == max_ddbs)
1265 return QLA_ERROR;
1266
1267 DEBUG2(ql4_printk(KERN_INFO, ha,
1268 "Match found in fwdb sessions\n"));
1269 return QLA_SUCCESS;
1270}
1271
Manish Rangankarb3a271a2011-07-25 13:48:53 -05001272static struct iscsi_cls_session *
1273qla4xxx_session_create(struct iscsi_endpoint *ep,
1274 uint16_t cmds_max, uint16_t qdepth,
1275 uint32_t initial_cmdsn)
1276{
1277 struct iscsi_cls_session *cls_sess;
1278 struct scsi_qla_host *ha;
1279 struct qla_endpoint *qla_ep;
1280 struct ddb_entry *ddb_entry;
Mike Christie13483732011-12-01 21:38:41 -06001281 uint16_t ddb_index;
Manish Rangankarb3a271a2011-07-25 13:48:53 -05001282 struct iscsi_session *sess;
1283 struct sockaddr *dst_addr;
1284 int ret;
1285
1286 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
1287 if (!ep) {
1288 printk(KERN_ERR "qla4xxx: missing ep.\n");
1289 return NULL;
1290 }
1291
1292 qla_ep = ep->dd_data;
1293 dst_addr = (struct sockaddr *)&qla_ep->dst_addr;
1294 ha = to_qla_host(qla_ep->host);
Manish Rangankar736cf362011-10-07 16:55:46 -07001295
Mike Christie13483732011-12-01 21:38:41 -06001296 ret = qla4xxx_get_ddb_index(ha, &ddb_index);
1297 if (ret == QLA_ERROR)
Manish Rangankarb3a271a2011-07-25 13:48:53 -05001298 return NULL;
Manish Rangankarb3a271a2011-07-25 13:48:53 -05001299
1300 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, qla_ep->host,
1301 cmds_max, sizeof(struct ddb_entry),
1302 sizeof(struct ql4_task_data),
1303 initial_cmdsn, ddb_index);
1304 if (!cls_sess)
1305 return NULL;
1306
1307 sess = cls_sess->dd_data;
1308 ddb_entry = sess->dd_data;
1309 ddb_entry->fw_ddb_index = ddb_index;
1310 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE;
1311 ddb_entry->ha = ha;
1312 ddb_entry->sess = cls_sess;
Mike Christie13483732011-12-01 21:38:41 -06001313 ddb_entry->unblock_sess = qla4xxx_unblock_ddb;
1314 ddb_entry->ddb_change = qla4xxx_ddb_change;
Manish Rangankarb3a271a2011-07-25 13:48:53 -05001315 cls_sess->recovery_tmo = ql4xsess_recovery_tmo;
1316 ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry;
1317 ha->tot_ddbs++;
1318
1319 return cls_sess;
1320}
1321
1322static void qla4xxx_session_destroy(struct iscsi_cls_session *cls_sess)
1323{
1324 struct iscsi_session *sess;
1325 struct ddb_entry *ddb_entry;
1326 struct scsi_qla_host *ha;
1327 unsigned long flags;
1328
1329 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
1330 sess = cls_sess->dd_data;
1331 ddb_entry = sess->dd_data;
1332 ha = ddb_entry->ha;
1333
Manish Rangankar736cf362011-10-07 16:55:46 -07001334 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
1335
Manish Rangankarb3a271a2011-07-25 13:48:53 -05001336 spin_lock_irqsave(&ha->hardware_lock, flags);
1337 qla4xxx_free_ddb(ha, ddb_entry);
1338 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1339 iscsi_session_teardown(cls_sess);
1340}
1341
Manish Rangankarb3a271a2011-07-25 13:48:53 -05001342static struct iscsi_cls_conn *
1343qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx)
1344{
1345 struct iscsi_cls_conn *cls_conn;
1346 struct iscsi_session *sess;
1347 struct ddb_entry *ddb_entry;
1348
1349 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
1350 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn),
1351 conn_idx);
Mike Christieff1d0312011-12-01 21:38:43 -06001352 if (!cls_conn)
1353 return NULL;
1354
Manish Rangankarb3a271a2011-07-25 13:48:53 -05001355 sess = cls_sess->dd_data;
1356 ddb_entry = sess->dd_data;
1357 ddb_entry->conn = cls_conn;
1358
1359 return cls_conn;
1360}
1361
1362static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session,
1363 struct iscsi_cls_conn *cls_conn,
1364 uint64_t transport_fd, int is_leading)
1365{
1366 struct iscsi_conn *conn;
1367 struct qla_conn *qla_conn;
1368 struct iscsi_endpoint *ep;
1369
1370 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
1371
1372 if (iscsi_conn_bind(cls_session, cls_conn, is_leading))
1373 return -EINVAL;
1374 ep = iscsi_lookup_endpoint(transport_fd);
1375 conn = cls_conn->dd_data;
1376 qla_conn = conn->dd_data;
1377 qla_conn->qla_ep = ep->dd_data;
1378 return 0;
1379}
1380
1381static int qla4xxx_conn_start(struct iscsi_cls_conn *cls_conn)
1382{
1383 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
1384 struct iscsi_session *sess;
1385 struct ddb_entry *ddb_entry;
1386 struct scsi_qla_host *ha;
Mike Christie13483732011-12-01 21:38:41 -06001387 struct dev_db_entry *fw_ddb_entry = NULL;
Manish Rangankarb3a271a2011-07-25 13:48:53 -05001388 dma_addr_t fw_ddb_entry_dma;
Manish Rangankarb3a271a2011-07-25 13:48:53 -05001389 uint32_t mbx_sts = 0;
1390 int ret = 0;
1391 int status = QLA_SUCCESS;
1392
1393 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
1394 sess = cls_sess->dd_data;
1395 ddb_entry = sess->dd_data;
1396 ha = ddb_entry->ha;
1397
Mike Christie13483732011-12-01 21:38:41 -06001398 /* Check if we have matching FW DDB, if yes then do not
1399 * login to this target. This could cause target to logout previous
1400 * connection
1401 */
1402 ret = qla4xxx_match_fwdb_session(ha, cls_conn);
1403 if (ret == QLA_SUCCESS) {
1404 ql4_printk(KERN_INFO, ha,
1405 "Session already exist in FW.\n");
1406 ret = -EEXIST;
1407 goto exit_conn_start;
1408 }
1409
Manish Rangankarb3a271a2011-07-25 13:48:53 -05001410 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
1411 &fw_ddb_entry_dma, GFP_KERNEL);
1412 if (!fw_ddb_entry) {
1413 ql4_printk(KERN_ERR, ha,
1414 "%s: Unable to allocate dma buffer\n", __func__);
Mike Christie13483732011-12-01 21:38:41 -06001415 ret = -ENOMEM;
1416 goto exit_conn_start;
Manish Rangankarb3a271a2011-07-25 13:48:53 -05001417 }
1418
1419 ret = qla4xxx_set_param_ddbentry(ha, ddb_entry, cls_conn, &mbx_sts);
1420 if (ret) {
1421 /* If iscsid is stopped and started then no need to do
1422 * set param again since ddb state will be already
1423 * active and FW does not allow set ddb to an
1424 * active session.
1425 */
1426 if (mbx_sts)
1427 if (ddb_entry->fw_ddb_device_state ==
Manish Rangankarf922da72011-10-07 16:55:49 -07001428 DDB_DS_SESSION_ACTIVE) {
Mike Christie13483732011-12-01 21:38:41 -06001429 ddb_entry->unblock_sess(ddb_entry->sess);
Manish Rangankarb3a271a2011-07-25 13:48:53 -05001430 goto exit_set_param;
Manish Rangankarf922da72011-10-07 16:55:49 -07001431 }
Manish Rangankarb3a271a2011-07-25 13:48:53 -05001432
1433 ql4_printk(KERN_ERR, ha, "%s: Failed set param for index[%d]\n",
1434 __func__, ddb_entry->fw_ddb_index);
1435 goto exit_conn_start;
1436 }
1437
1438 status = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index);
1439 if (status == QLA_ERROR) {
Manish Rangankar0e7e8502011-07-25 13:48:54 -05001440 ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__,
1441 sess->targetname);
Manish Rangankarb3a271a2011-07-25 13:48:53 -05001442 ret = -EINVAL;
1443 goto exit_conn_start;
1444 }
1445
Manish Rangankar98270ab2011-10-07 16:55:47 -07001446 if (ddb_entry->fw_ddb_device_state == DDB_DS_NO_CONNECTION_ACTIVE)
1447 ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS;
1448
1449 DEBUG2(printk(KERN_INFO "%s: DDB state [%d]\n", __func__,
1450 ddb_entry->fw_ddb_device_state));
Manish Rangankarb3a271a2011-07-25 13:48:53 -05001451
1452exit_set_param:
Manish Rangankarb3a271a2011-07-25 13:48:53 -05001453 ret = 0;
1454
1455exit_conn_start:
Mike Christie13483732011-12-01 21:38:41 -06001456 if (fw_ddb_entry)
1457 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
1458 fw_ddb_entry, fw_ddb_entry_dma);
Manish Rangankarb3a271a2011-07-25 13:48:53 -05001459 return ret;
1460}
1461
1462static void qla4xxx_conn_destroy(struct iscsi_cls_conn *cls_conn)
1463{
1464 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
1465 struct iscsi_session *sess;
1466 struct scsi_qla_host *ha;
1467 struct ddb_entry *ddb_entry;
1468 int options;
1469
1470 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
1471 sess = cls_sess->dd_data;
1472 ddb_entry = sess->dd_data;
1473 ha = ddb_entry->ha;
1474
1475 options = LOGOUT_OPTION_CLOSE_SESSION;
1476 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR)
1477 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__);
Manish Rangankarb3a271a2011-07-25 13:48:53 -05001478}
1479
1480static void qla4xxx_task_work(struct work_struct *wdata)
1481{
1482 struct ql4_task_data *task_data;
1483 struct scsi_qla_host *ha;
1484 struct passthru_status *sts;
1485 struct iscsi_task *task;
1486 struct iscsi_hdr *hdr;
1487 uint8_t *data;
1488 uint32_t data_len;
1489 struct iscsi_conn *conn;
1490 int hdr_len;
1491 itt_t itt;
1492
1493 task_data = container_of(wdata, struct ql4_task_data, task_work);
1494 ha = task_data->ha;
1495 task = task_data->task;
1496 sts = &task_data->sts;
1497 hdr_len = sizeof(struct iscsi_hdr);
1498
1499 DEBUG3(printk(KERN_INFO "Status returned\n"));
1500 DEBUG3(qla4xxx_dump_buffer(sts, 64));
1501 DEBUG3(printk(KERN_INFO "Response buffer"));
1502 DEBUG3(qla4xxx_dump_buffer(task_data->resp_buffer, 64));
1503
1504 conn = task->conn;
1505
1506 switch (sts->completionStatus) {
1507 case PASSTHRU_STATUS_COMPLETE:
1508 hdr = (struct iscsi_hdr *)task_data->resp_buffer;
1509 /* Assign back the itt in hdr, until we use the PREASSIGN_TAG */
1510 itt = sts->handle;
1511 hdr->itt = itt;
1512 data = task_data->resp_buffer + hdr_len;
1513 data_len = task_data->resp_len - hdr_len;
1514 iscsi_complete_pdu(conn, hdr, data, data_len);
1515 break;
1516 default:
1517 ql4_printk(KERN_ERR, ha, "Passthru failed status = 0x%x\n",
1518 sts->completionStatus);
1519 break;
1520 }
1521 return;
1522}
1523
1524static int qla4xxx_alloc_pdu(struct iscsi_task *task, uint8_t opcode)
1525{
1526 struct ql4_task_data *task_data;
1527 struct iscsi_session *sess;
1528 struct ddb_entry *ddb_entry;
1529 struct scsi_qla_host *ha;
1530 int hdr_len;
1531
1532 sess = task->conn->session;
1533 ddb_entry = sess->dd_data;
1534 ha = ddb_entry->ha;
1535 task_data = task->dd_data;
1536 memset(task_data, 0, sizeof(struct ql4_task_data));
1537
1538 if (task->sc) {
1539 ql4_printk(KERN_INFO, ha,
1540 "%s: SCSI Commands not implemented\n", __func__);
1541 return -EINVAL;
1542 }
1543
1544 hdr_len = sizeof(struct iscsi_hdr);
1545 task_data->ha = ha;
1546 task_data->task = task;
1547
1548 if (task->data_count) {
1549 task_data->data_dma = dma_map_single(&ha->pdev->dev, task->data,
1550 task->data_count,
1551 PCI_DMA_TODEVICE);
1552 }
1553
1554 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n",
1555 __func__, task->conn->max_recv_dlength, hdr_len));
1556
Manish Rangankar69ca2162011-10-07 16:55:50 -07001557 task_data->resp_len = task->conn->max_recv_dlength + hdr_len;
Manish Rangankarb3a271a2011-07-25 13:48:53 -05001558 task_data->resp_buffer = dma_alloc_coherent(&ha->pdev->dev,
1559 task_data->resp_len,
1560 &task_data->resp_dma,
1561 GFP_ATOMIC);
1562 if (!task_data->resp_buffer)
1563 goto exit_alloc_pdu;
1564
Manish Rangankar69ca2162011-10-07 16:55:50 -07001565 task_data->req_len = task->data_count + hdr_len;
Manish Rangankarb3a271a2011-07-25 13:48:53 -05001566 task_data->req_buffer = dma_alloc_coherent(&ha->pdev->dev,
Manish Rangankar69ca2162011-10-07 16:55:50 -07001567 task_data->req_len,
Manish Rangankarb3a271a2011-07-25 13:48:53 -05001568 &task_data->req_dma,
1569 GFP_ATOMIC);
1570 if (!task_data->req_buffer)
1571 goto exit_alloc_pdu;
1572
1573 task->hdr = task_data->req_buffer;
1574
1575 INIT_WORK(&task_data->task_work, qla4xxx_task_work);
1576
1577 return 0;
1578
1579exit_alloc_pdu:
1580 if (task_data->resp_buffer)
1581 dma_free_coherent(&ha->pdev->dev, task_data->resp_len,
1582 task_data->resp_buffer, task_data->resp_dma);
1583
1584 if (task_data->req_buffer)
Manish Rangankar69ca2162011-10-07 16:55:50 -07001585 dma_free_coherent(&ha->pdev->dev, task_data->req_len,
Manish Rangankarb3a271a2011-07-25 13:48:53 -05001586 task_data->req_buffer, task_data->req_dma);
1587 return -ENOMEM;
1588}
1589
1590static void qla4xxx_task_cleanup(struct iscsi_task *task)
1591{
1592 struct ql4_task_data *task_data;
1593 struct iscsi_session *sess;
1594 struct ddb_entry *ddb_entry;
1595 struct scsi_qla_host *ha;
1596 int hdr_len;
1597
1598 hdr_len = sizeof(struct iscsi_hdr);
1599 sess = task->conn->session;
1600 ddb_entry = sess->dd_data;
1601 ha = ddb_entry->ha;
1602 task_data = task->dd_data;
1603
1604 if (task->data_count) {
1605 dma_unmap_single(&ha->pdev->dev, task_data->data_dma,
1606 task->data_count, PCI_DMA_TODEVICE);
1607 }
1608
1609 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n",
1610 __func__, task->conn->max_recv_dlength, hdr_len));
1611
1612 dma_free_coherent(&ha->pdev->dev, task_data->resp_len,
1613 task_data->resp_buffer, task_data->resp_dma);
Manish Rangankar69ca2162011-10-07 16:55:50 -07001614 dma_free_coherent(&ha->pdev->dev, task_data->req_len,
Manish Rangankarb3a271a2011-07-25 13:48:53 -05001615 task_data->req_buffer, task_data->req_dma);
1616 return;
1617}
1618
1619static int qla4xxx_task_xmit(struct iscsi_task *task)
1620{
1621 struct scsi_cmnd *sc = task->sc;
1622 struct iscsi_session *sess = task->conn->session;
1623 struct ddb_entry *ddb_entry = sess->dd_data;
1624 struct scsi_qla_host *ha = ddb_entry->ha;
1625
1626 if (!sc)
1627 return qla4xxx_send_passthru0(task);
1628
1629 ql4_printk(KERN_INFO, ha, "%s: scsi cmd xmit not implemented\n",
1630 __func__);
1631 return -ENOSYS;
1632}
1633
Mike Christie13483732011-12-01 21:38:41 -06001634static void qla4xxx_copy_fwddb_param(struct scsi_qla_host *ha,
1635 struct dev_db_entry *fw_ddb_entry,
1636 struct iscsi_cls_session *cls_sess,
1637 struct iscsi_cls_conn *cls_conn)
1638{
1639 int buflen = 0;
1640 struct iscsi_session *sess;
1641 struct iscsi_conn *conn;
1642 char ip_addr[DDB_IPADDR_LEN];
1643 uint16_t options = 0;
1644
1645 sess = cls_sess->dd_data;
1646 conn = cls_conn->dd_data;
1647
1648 conn->max_recv_dlength = BYTE_UNITS *
1649 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len);
1650
1651 conn->max_xmit_dlength = BYTE_UNITS *
1652 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len);
1653
1654 sess->initial_r2t_en =
1655 (BIT_10 & le16_to_cpu(fw_ddb_entry->iscsi_options));
1656
1657 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t);
1658
1659 sess->imm_data_en = (BIT_11 & le16_to_cpu(fw_ddb_entry->iscsi_options));
1660
1661 sess->first_burst = BYTE_UNITS *
1662 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len);
1663
1664 sess->max_burst = BYTE_UNITS *
1665 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len);
1666
1667 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
1668
1669 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain);
1670
1671 conn->persistent_port = le16_to_cpu(fw_ddb_entry->port);
1672
1673 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
1674
1675 options = le16_to_cpu(fw_ddb_entry->options);
1676 if (options & DDB_OPT_IPV6_DEVICE)
1677 sprintf(ip_addr, "%pI6", fw_ddb_entry->ip_addr);
1678 else
1679 sprintf(ip_addr, "%pI4", fw_ddb_entry->ip_addr);
1680
1681 iscsi_set_param(cls_conn, ISCSI_PARAM_TARGET_NAME,
1682 (char *)fw_ddb_entry->iscsi_name, buflen);
1683 iscsi_set_param(cls_conn, ISCSI_PARAM_INITIATOR_NAME,
1684 (char *)ha->name_string, buflen);
1685 iscsi_set_param(cls_conn, ISCSI_PARAM_PERSISTENT_ADDRESS,
1686 (char *)ip_addr, buflen);
Vikas Chaudhary6c1b8782012-01-19 03:06:54 -08001687 iscsi_set_param(cls_conn, ISCSI_PARAM_TARGET_ALIAS,
1688 (char *)fw_ddb_entry->iscsi_alias, buflen);
Mike Christie13483732011-12-01 21:38:41 -06001689}
1690
1691void qla4xxx_update_session_conn_fwddb_param(struct scsi_qla_host *ha,
1692 struct ddb_entry *ddb_entry)
1693{
1694 struct iscsi_cls_session *cls_sess;
1695 struct iscsi_cls_conn *cls_conn;
1696 uint32_t ddb_state;
1697 dma_addr_t fw_ddb_entry_dma;
1698 struct dev_db_entry *fw_ddb_entry;
1699
1700 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
1701 &fw_ddb_entry_dma, GFP_KERNEL);
1702 if (!fw_ddb_entry) {
1703 ql4_printk(KERN_ERR, ha,
1704 "%s: Unable to allocate dma buffer\n", __func__);
1705 goto exit_session_conn_fwddb_param;
1706 }
1707
1708 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry,
1709 fw_ddb_entry_dma, NULL, NULL, &ddb_state,
1710 NULL, NULL, NULL) == QLA_ERROR) {
1711 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
1712 "get_ddb_entry for fw_ddb_index %d\n",
1713 ha->host_no, __func__,
1714 ddb_entry->fw_ddb_index));
1715 goto exit_session_conn_fwddb_param;
1716 }
1717
1718 cls_sess = ddb_entry->sess;
1719
1720 cls_conn = ddb_entry->conn;
1721
1722 /* Update params */
1723 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn);
1724
1725exit_session_conn_fwddb_param:
1726 if (fw_ddb_entry)
1727 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
1728 fw_ddb_entry, fw_ddb_entry_dma);
1729}
1730
Manish Rangankarb3a271a2011-07-25 13:48:53 -05001731void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha,
1732 struct ddb_entry *ddb_entry)
1733{
1734 struct iscsi_cls_session *cls_sess;
1735 struct iscsi_cls_conn *cls_conn;
1736 struct iscsi_session *sess;
1737 struct iscsi_conn *conn;
1738 uint32_t ddb_state;
1739 dma_addr_t fw_ddb_entry_dma;
1740 struct dev_db_entry *fw_ddb_entry;
1741
1742 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
1743 &fw_ddb_entry_dma, GFP_KERNEL);
1744 if (!fw_ddb_entry) {
1745 ql4_printk(KERN_ERR, ha,
1746 "%s: Unable to allocate dma buffer\n", __func__);
Mike Christie13483732011-12-01 21:38:41 -06001747 goto exit_session_conn_param;
Manish Rangankarb3a271a2011-07-25 13:48:53 -05001748 }
1749
1750 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry,
1751 fw_ddb_entry_dma, NULL, NULL, &ddb_state,
1752 NULL, NULL, NULL) == QLA_ERROR) {
1753 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
1754 "get_ddb_entry for fw_ddb_index %d\n",
1755 ha->host_no, __func__,
1756 ddb_entry->fw_ddb_index));
Mike Christie13483732011-12-01 21:38:41 -06001757 goto exit_session_conn_param;
Manish Rangankarb3a271a2011-07-25 13:48:53 -05001758 }
1759
1760 cls_sess = ddb_entry->sess;
1761 sess = cls_sess->dd_data;
1762
1763 cls_conn = ddb_entry->conn;
1764 conn = cls_conn->dd_data;
1765
Mike Christie13483732011-12-01 21:38:41 -06001766 /* Update timers after login */
1767 ddb_entry->default_relogin_timeout =
Nilesh Javalic28eaac2011-12-18 21:40:44 -08001768 (le16_to_cpu(fw_ddb_entry->def_timeout) > LOGIN_TOV) &&
1769 (le16_to_cpu(fw_ddb_entry->def_timeout) < LOGIN_TOV * 10) ?
1770 le16_to_cpu(fw_ddb_entry->def_timeout) : LOGIN_TOV;
Mike Christie13483732011-12-01 21:38:41 -06001771 ddb_entry->default_time2wait =
1772 le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
1773
Manish Rangankarb3a271a2011-07-25 13:48:53 -05001774 /* Update params */
1775 conn->max_recv_dlength = BYTE_UNITS *
1776 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len);
1777
1778 conn->max_xmit_dlength = BYTE_UNITS *
1779 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len);
1780
1781 sess->initial_r2t_en =
1782 (BIT_10 & le16_to_cpu(fw_ddb_entry->iscsi_options));
1783
1784 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t);
1785
1786 sess->imm_data_en = (BIT_11 & le16_to_cpu(fw_ddb_entry->iscsi_options));
1787
1788 sess->first_burst = BYTE_UNITS *
1789 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len);
1790
1791 sess->max_burst = BYTE_UNITS *
1792 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len);
1793
1794 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
1795
1796 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain);
1797
1798 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
1799
1800 memcpy(sess->initiatorname, ha->name_string,
1801 min(sizeof(ha->name_string), sizeof(sess->initiatorname)));
Mike Christie13483732011-12-01 21:38:41 -06001802
Vikas Chaudhary6c1b8782012-01-19 03:06:54 -08001803 iscsi_set_param(cls_conn, ISCSI_PARAM_TARGET_ALIAS,
1804 (char *)fw_ddb_entry->iscsi_alias, 0);
1805
Mike Christie13483732011-12-01 21:38:41 -06001806exit_session_conn_param:
1807 if (fw_ddb_entry)
1808 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
1809 fw_ddb_entry, fw_ddb_entry_dma);
Manish Rangankarb3a271a2011-07-25 13:48:53 -05001810}
1811
David Somayajuluafaf5a22006-09-19 10:28:00 -07001812/*
1813 * Timer routines
1814 */
1815
1816static void qla4xxx_start_timer(struct scsi_qla_host *ha, void *func,
1817 unsigned long interval)
1818{
1819 DEBUG(printk("scsi: %s: Starting timer thread for adapter %d\n",
1820 __func__, ha->host->host_no));
1821 init_timer(&ha->timer);
1822 ha->timer.expires = jiffies + interval * HZ;
1823 ha->timer.data = (unsigned long)ha;
1824 ha->timer.function = (void (*)(unsigned long))func;
1825 add_timer(&ha->timer);
1826 ha->timer_active = 1;
1827}
1828
1829static void qla4xxx_stop_timer(struct scsi_qla_host *ha)
1830{
1831 del_timer_sync(&ha->timer);
1832 ha->timer_active = 0;
1833}
1834
1835/***
Manish Rangankarb3a271a2011-07-25 13:48:53 -05001836 * qla4xxx_mark_device_missing - blocks the session
1837 * @cls_session: Pointer to the session to be blocked
David Somayajuluafaf5a22006-09-19 10:28:00 -07001838 * @ddb_entry: Pointer to device database entry
1839 *
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05301840 * This routine marks a device missing and close connection.
David Somayajuluafaf5a22006-09-19 10:28:00 -07001841 **/
Manish Rangankarb3a271a2011-07-25 13:48:53 -05001842void qla4xxx_mark_device_missing(struct iscsi_cls_session *cls_session)
David Somayajuluafaf5a22006-09-19 10:28:00 -07001843{
Manish Rangankarb3a271a2011-07-25 13:48:53 -05001844 iscsi_block_session(cls_session);
David Somayajuluafaf5a22006-09-19 10:28:00 -07001845}
1846
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05301847/**
1848 * qla4xxx_mark_all_devices_missing - mark all devices as missing.
1849 * @ha: Pointer to host adapter structure.
1850 *
1851 * This routine marks a device missing and resets the relogin retry count.
1852 **/
1853void qla4xxx_mark_all_devices_missing(struct scsi_qla_host *ha)
1854{
Manish Rangankarb3a271a2011-07-25 13:48:53 -05001855 iscsi_host_for_each_session(ha->host, qla4xxx_mark_device_missing);
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05301856}
1857
David Somayajuluafaf5a22006-09-19 10:28:00 -07001858static struct srb* qla4xxx_get_new_srb(struct scsi_qla_host *ha,
1859 struct ddb_entry *ddb_entry,
Vikas Chaudhary8f0722c2011-05-17 23:17:10 -07001860 struct scsi_cmnd *cmd)
David Somayajuluafaf5a22006-09-19 10:28:00 -07001861{
1862 struct srb *srb;
1863
1864 srb = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
1865 if (!srb)
1866 return srb;
1867
Vikas Chaudhary09a0f712010-04-28 11:42:24 +05301868 kref_init(&srb->srb_ref);
David Somayajuluafaf5a22006-09-19 10:28:00 -07001869 srb->ha = ha;
1870 srb->ddb = ddb_entry;
1871 srb->cmd = cmd;
1872 srb->flags = 0;
Vikas Chaudhary53698872010-04-28 11:41:59 +05301873 CMD_SP(cmd) = (void *)srb;
David Somayajuluafaf5a22006-09-19 10:28:00 -07001874
1875 return srb;
1876}
1877
1878static void qla4xxx_srb_free_dma(struct scsi_qla_host *ha, struct srb *srb)
1879{
1880 struct scsi_cmnd *cmd = srb->cmd;
1881
1882 if (srb->flags & SRB_DMA_VALID) {
FUJITA Tomonori5f7186c2007-05-26 14:08:20 +09001883 scsi_dma_unmap(cmd);
David Somayajuluafaf5a22006-09-19 10:28:00 -07001884 srb->flags &= ~SRB_DMA_VALID;
1885 }
Vikas Chaudhary53698872010-04-28 11:41:59 +05301886 CMD_SP(cmd) = NULL;
David Somayajuluafaf5a22006-09-19 10:28:00 -07001887}
1888
Vikas Chaudhary09a0f712010-04-28 11:42:24 +05301889void qla4xxx_srb_compl(struct kref *ref)
David Somayajuluafaf5a22006-09-19 10:28:00 -07001890{
Vikas Chaudhary09a0f712010-04-28 11:42:24 +05301891 struct srb *srb = container_of(ref, struct srb, srb_ref);
David Somayajuluafaf5a22006-09-19 10:28:00 -07001892 struct scsi_cmnd *cmd = srb->cmd;
Vikas Chaudhary09a0f712010-04-28 11:42:24 +05301893 struct scsi_qla_host *ha = srb->ha;
David Somayajuluafaf5a22006-09-19 10:28:00 -07001894
1895 qla4xxx_srb_free_dma(ha, srb);
1896
1897 mempool_free(srb, ha->srb_mempool);
1898
1899 cmd->scsi_done(cmd);
1900}
1901
1902/**
1903 * qla4xxx_queuecommand - scsi layer issues scsi command to driver.
Vikas Chaudhary8f0722c2011-05-17 23:17:10 -07001904 * @host: scsi host
David Somayajuluafaf5a22006-09-19 10:28:00 -07001905 * @cmd: Pointer to Linux's SCSI command structure
David Somayajuluafaf5a22006-09-19 10:28:00 -07001906 *
1907 * Remarks:
1908 * This routine is invoked by Linux to send a SCSI command to the driver.
1909 * The mid-level driver tries to ensure that queuecommand never gets
1910 * invoked concurrently with itself or the interrupt handler (although
1911 * the interrupt handler may call this routine as part of request-
1912 * completion handling). Unfortunely, it sometimes calls the scheduler
1913 * in interrupt context which is a big NO! NO!.
1914 **/
Vikas Chaudhary8f0722c2011-05-17 23:17:10 -07001915static int qla4xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
David Somayajuluafaf5a22006-09-19 10:28:00 -07001916{
Vikas Chaudhary8f0722c2011-05-17 23:17:10 -07001917 struct scsi_qla_host *ha = to_qla_host(host);
David Somayajuluafaf5a22006-09-19 10:28:00 -07001918 struct ddb_entry *ddb_entry = cmd->device->hostdata;
Mike Christie7fb19212008-01-31 13:36:45 -06001919 struct iscsi_cls_session *sess = ddb_entry->sess;
David Somayajuluafaf5a22006-09-19 10:28:00 -07001920 struct srb *srb;
1921 int rval;
1922
Lalit Chandivade2232be02010-07-30 14:38:47 +05301923 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
1924 if (test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags))
1925 cmd->result = DID_NO_CONNECT << 16;
1926 else
1927 cmd->result = DID_REQUEUE << 16;
1928 goto qc_fail_command;
1929 }
1930
Mike Christie7fb19212008-01-31 13:36:45 -06001931 if (!sess) {
1932 cmd->result = DID_IMM_RETRY << 16;
1933 goto qc_fail_command;
1934 }
1935
1936 rval = iscsi_session_chkready(sess);
1937 if (rval) {
1938 cmd->result = rval;
1939 goto qc_fail_command;
1940 }
1941
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05301942 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
1943 test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) ||
1944 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
1945 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) ||
1946 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) ||
1947 !test_bit(AF_ONLINE, &ha->flags) ||
Manish Rangankarb3a271a2011-07-25 13:48:53 -05001948 !test_bit(AF_LINK_UP, &ha->flags) ||
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05301949 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))
David C Somayajulu477ffb92007-01-22 12:26:11 -08001950 goto qc_host_busy;
1951
Vikas Chaudhary8f0722c2011-05-17 23:17:10 -07001952 srb = qla4xxx_get_new_srb(ha, ddb_entry, cmd);
David Somayajuluafaf5a22006-09-19 10:28:00 -07001953 if (!srb)
Vikas Chaudhary8f0722c2011-05-17 23:17:10 -07001954 goto qc_host_busy;
David Somayajuluafaf5a22006-09-19 10:28:00 -07001955
1956 rval = qla4xxx_send_command_to_isp(ha, srb);
1957 if (rval != QLA_SUCCESS)
1958 goto qc_host_busy_free_sp;
1959
David Somayajuluafaf5a22006-09-19 10:28:00 -07001960 return 0;
1961
1962qc_host_busy_free_sp:
1963 qla4xxx_srb_free_dma(ha, srb);
1964 mempool_free(srb, ha->srb_mempool);
1965
David Somayajuluafaf5a22006-09-19 10:28:00 -07001966qc_host_busy:
1967 return SCSI_MLQUEUE_HOST_BUSY;
1968
1969qc_fail_command:
Vikas Chaudhary8f0722c2011-05-17 23:17:10 -07001970 cmd->scsi_done(cmd);
David Somayajuluafaf5a22006-09-19 10:28:00 -07001971
1972 return 0;
1973}
1974
1975/**
1976 * qla4xxx_mem_free - frees memory allocated to adapter
1977 * @ha: Pointer to host adapter structure.
1978 *
1979 * Frees memory previously allocated by qla4xxx_mem_alloc
1980 **/
1981static void qla4xxx_mem_free(struct scsi_qla_host *ha)
1982{
1983 if (ha->queues)
1984 dma_free_coherent(&ha->pdev->dev, ha->queues_len, ha->queues,
1985 ha->queues_dma);
1986
1987 ha->queues_len = 0;
1988 ha->queues = NULL;
1989 ha->queues_dma = 0;
1990 ha->request_ring = NULL;
1991 ha->request_dma = 0;
1992 ha->response_ring = NULL;
1993 ha->response_dma = 0;
1994 ha->shadow_regs = NULL;
1995 ha->shadow_regs_dma = 0;
1996
1997 /* Free srb pool. */
1998 if (ha->srb_mempool)
1999 mempool_destroy(ha->srb_mempool);
2000
2001 ha->srb_mempool = NULL;
2002
Manish Rangankarb3a271a2011-07-25 13:48:53 -05002003 if (ha->chap_dma_pool)
2004 dma_pool_destroy(ha->chap_dma_pool);
2005
Lalit Chandivade45494152011-10-07 16:55:42 -07002006 if (ha->chap_list)
2007 vfree(ha->chap_list);
2008 ha->chap_list = NULL;
2009
Mike Christie13483732011-12-01 21:38:41 -06002010 if (ha->fw_ddb_dma_pool)
2011 dma_pool_destroy(ha->fw_ddb_dma_pool);
2012
David Somayajuluafaf5a22006-09-19 10:28:00 -07002013 /* release io space registers */
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302014 if (is_qla8022(ha)) {
2015 if (ha->nx_pcibase)
2016 iounmap(
2017 (struct device_reg_82xx __iomem *)ha->nx_pcibase);
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302018 } else if (ha->reg)
David Somayajuluafaf5a22006-09-19 10:28:00 -07002019 iounmap(ha->reg);
2020 pci_release_regions(ha->pdev);
2021}
2022
2023/**
2024 * qla4xxx_mem_alloc - allocates memory for use by adapter.
2025 * @ha: Pointer to host adapter structure
2026 *
2027 * Allocates DMA memory for request and response queues. Also allocates memory
2028 * for srbs.
2029 **/
2030static int qla4xxx_mem_alloc(struct scsi_qla_host *ha)
2031{
2032 unsigned long align;
2033
2034 /* Allocate contiguous block of DMA memory for queues. */
2035 ha->queues_len = ((REQUEST_QUEUE_DEPTH * QUEUE_SIZE) +
2036 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE) +
2037 sizeof(struct shadow_regs) +
2038 MEM_ALIGN_VALUE +
2039 (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
2040 ha->queues = dma_alloc_coherent(&ha->pdev->dev, ha->queues_len,
2041 &ha->queues_dma, GFP_KERNEL);
2042 if (ha->queues == NULL) {
Vikas Chaudharyc2660df2010-07-10 14:51:02 +05302043 ql4_printk(KERN_WARNING, ha,
2044 "Memory Allocation failed - queues.\n");
David Somayajuluafaf5a22006-09-19 10:28:00 -07002045
2046 goto mem_alloc_error_exit;
2047 }
2048 memset(ha->queues, 0, ha->queues_len);
2049
2050 /*
2051 * As per RISC alignment requirements -- the bus-address must be a
2052 * multiple of the request-ring size (in bytes).
2053 */
2054 align = 0;
2055 if ((unsigned long)ha->queues_dma & (MEM_ALIGN_VALUE - 1))
2056 align = MEM_ALIGN_VALUE - ((unsigned long)ha->queues_dma &
2057 (MEM_ALIGN_VALUE - 1));
2058
2059 /* Update request and response queue pointers. */
2060 ha->request_dma = ha->queues_dma + align;
2061 ha->request_ring = (struct queue_entry *) (ha->queues + align);
2062 ha->response_dma = ha->queues_dma + align +
2063 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE);
2064 ha->response_ring = (struct queue_entry *) (ha->queues + align +
2065 (REQUEST_QUEUE_DEPTH *
2066 QUEUE_SIZE));
2067 ha->shadow_regs_dma = ha->queues_dma + align +
2068 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE) +
2069 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE);
2070 ha->shadow_regs = (struct shadow_regs *) (ha->queues + align +
2071 (REQUEST_QUEUE_DEPTH *
2072 QUEUE_SIZE) +
2073 (RESPONSE_QUEUE_DEPTH *
2074 QUEUE_SIZE));
2075
2076 /* Allocate memory for srb pool. */
2077 ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab,
2078 mempool_free_slab, srb_cachep);
2079 if (ha->srb_mempool == NULL) {
Vikas Chaudharyc2660df2010-07-10 14:51:02 +05302080 ql4_printk(KERN_WARNING, ha,
2081 "Memory Allocation failed - SRB Pool.\n");
David Somayajuluafaf5a22006-09-19 10:28:00 -07002082
2083 goto mem_alloc_error_exit;
2084 }
2085
Manish Rangankarb3a271a2011-07-25 13:48:53 -05002086 ha->chap_dma_pool = dma_pool_create("ql4_chap", &ha->pdev->dev,
2087 CHAP_DMA_BLOCK_SIZE, 8, 0);
2088
2089 if (ha->chap_dma_pool == NULL) {
2090 ql4_printk(KERN_WARNING, ha,
2091 "%s: chap_dma_pool allocation failed..\n", __func__);
2092 goto mem_alloc_error_exit;
2093 }
2094
Mike Christie13483732011-12-01 21:38:41 -06002095 ha->fw_ddb_dma_pool = dma_pool_create("ql4_fw_ddb", &ha->pdev->dev,
2096 DDB_DMA_BLOCK_SIZE, 8, 0);
2097
2098 if (ha->fw_ddb_dma_pool == NULL) {
2099 ql4_printk(KERN_WARNING, ha,
2100 "%s: fw_ddb_dma_pool allocation failed..\n",
2101 __func__);
2102 goto mem_alloc_error_exit;
2103 }
2104
David Somayajuluafaf5a22006-09-19 10:28:00 -07002105 return QLA_SUCCESS;
2106
2107mem_alloc_error_exit:
2108 qla4xxx_mem_free(ha);
2109 return QLA_ERROR;
2110}
2111
2112/**
Mike Hernandez4f770832012-01-11 02:44:15 -08002113 * qla4_8xxx_check_temp - Check the ISP82XX temperature.
2114 * @ha: adapter block pointer.
2115 *
2116 * Note: The caller should not hold the idc lock.
2117 **/
2118static int qla4_8xxx_check_temp(struct scsi_qla_host *ha)
2119{
2120 uint32_t temp, temp_state, temp_val;
2121 int status = QLA_SUCCESS;
2122
2123 temp = qla4_8xxx_rd_32(ha, CRB_TEMP_STATE);
2124
2125 temp_state = qla82xx_get_temp_state(temp);
2126 temp_val = qla82xx_get_temp_val(temp);
2127
2128 if (temp_state == QLA82XX_TEMP_PANIC) {
2129 ql4_printk(KERN_WARNING, ha, "Device temperature %d degrees C"
2130 " exceeds maximum allowed. Hardware has been shut"
2131 " down.\n", temp_val);
2132 status = QLA_ERROR;
2133 } else if (temp_state == QLA82XX_TEMP_WARN) {
2134 if (ha->temperature == QLA82XX_TEMP_NORMAL)
2135 ql4_printk(KERN_WARNING, ha, "Device temperature %d"
2136 " degrees C exceeds operating range."
2137 " Immediate action needed.\n", temp_val);
2138 } else {
2139 if (ha->temperature == QLA82XX_TEMP_WARN)
2140 ql4_printk(KERN_INFO, ha, "Device temperature is"
2141 " now %d degrees C in normal range.\n",
2142 temp_val);
2143 }
2144 ha->temperature = temp_state;
2145 return status;
2146}
2147
2148/**
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302149 * qla4_8xxx_check_fw_alive - Check firmware health
2150 * @ha: Pointer to host adapter structure.
2151 *
2152 * Context: Interrupt
2153 **/
Shyam Sunder9ee91a32011-12-01 22:42:13 -08002154static int qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha)
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302155{
Shyam Sunder9ee91a32011-12-01 22:42:13 -08002156 uint32_t fw_heartbeat_counter;
2157 int status = QLA_SUCCESS;
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302158
2159 fw_heartbeat_counter = qla4_8xxx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER);
Lalit Chandivade2232be02010-07-30 14:38:47 +05302160 /* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */
2161 if (fw_heartbeat_counter == 0xffffffff) {
2162 DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Device in frozen "
2163 "state, QLA82XX_PEG_ALIVE_COUNTER is 0xffffffff\n",
2164 ha->host_no, __func__));
Shyam Sunder9ee91a32011-12-01 22:42:13 -08002165 return status;
Lalit Chandivade2232be02010-07-30 14:38:47 +05302166 }
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302167
2168 if (ha->fw_heartbeat_counter == fw_heartbeat_counter) {
2169 ha->seconds_since_last_heartbeat++;
2170 /* FW not alive after 2 seconds */
2171 if (ha->seconds_since_last_heartbeat == 2) {
2172 ha->seconds_since_last_heartbeat = 0;
Vikas Chaudhary68d92eb2011-05-17 23:17:05 -07002173
2174 ql4_printk(KERN_INFO, ha,
2175 "scsi(%ld): %s, Dumping hw/fw registers:\n "
2176 " PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2:"
2177 " 0x%x,\n PEG_NET_0_PC: 0x%x, PEG_NET_1_PC:"
2178 " 0x%x,\n PEG_NET_2_PC: 0x%x, PEG_NET_3_PC:"
2179 " 0x%x,\n PEG_NET_4_PC: 0x%x\n",
Shyam Sunder9ee91a32011-12-01 22:42:13 -08002180 ha->host_no, __func__,
2181 qla4_8xxx_rd_32(ha,
2182 QLA82XX_PEG_HALT_STATUS1),
Vikas Chaudhary68d92eb2011-05-17 23:17:05 -07002183 qla4_8xxx_rd_32(ha,
2184 QLA82XX_PEG_HALT_STATUS2),
2185 qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_0 +
2186 0x3c),
2187 qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_1 +
2188 0x3c),
2189 qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_2 +
2190 0x3c),
2191 qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_3 +
2192 0x3c),
2193 qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_4 +
2194 0x3c));
Shyam Sunder9ee91a32011-12-01 22:42:13 -08002195 status = QLA_ERROR;
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302196 }
Lalit Chandivade99457d72010-10-06 22:49:32 -07002197 } else
2198 ha->seconds_since_last_heartbeat = 0;
2199
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302200 ha->fw_heartbeat_counter = fw_heartbeat_counter;
Shyam Sunder9ee91a32011-12-01 22:42:13 -08002201 return status;
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302202}
2203
2204/**
2205 * qla4_8xxx_watchdog - Poll dev state
2206 * @ha: Pointer to host adapter structure.
2207 *
2208 * Context: Interrupt
2209 **/
2210void qla4_8xxx_watchdog(struct scsi_qla_host *ha)
2211{
Shyam Sunder9ee91a32011-12-01 22:42:13 -08002212 uint32_t dev_state, halt_status;
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302213
2214 /* don't poll if reset is going on */
Lalit Chandivaded56a1f72010-12-02 22:12:45 -08002215 if (!(test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) ||
2216 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
Vikas Chaudhary977f46a2011-05-17 23:17:08 -07002217 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags))) {
Shyam Sunder9ee91a32011-12-01 22:42:13 -08002218 dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
Mike Hernandez4f770832012-01-11 02:44:15 -08002219
2220 if (qla4_8xxx_check_temp(ha)) {
Giridhar Malavalie6bd0eb2012-01-11 02:44:16 -08002221 ql4_printk(KERN_INFO, ha, "disabling pause"
2222 " transmit on port 0 & 1.\n");
2223 qla4_8xxx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
2224 CRB_NIU_XG_PAUSE_CTL_P0 |
2225 CRB_NIU_XG_PAUSE_CTL_P1);
Mike Hernandez4f770832012-01-11 02:44:15 -08002226 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags);
2227 qla4xxx_wake_dpc(ha);
2228 } else if (dev_state == QLA82XX_DEV_NEED_RESET &&
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302229 !test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
Vikas Chaudhary3930b8c2010-12-02 22:12:47 -08002230 if (!ql4xdontresethba) {
2231 ql4_printk(KERN_INFO, ha, "%s: HW State: "
2232 "NEED RESET!\n", __func__);
2233 set_bit(DPC_RESET_HA, &ha->dpc_flags);
2234 qla4xxx_wake_dpc(ha);
Vikas Chaudhary3930b8c2010-12-02 22:12:47 -08002235 }
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302236 } else if (dev_state == QLA82XX_DEV_NEED_QUIESCENT &&
2237 !test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) {
Vikas Chaudhary3930b8c2010-12-02 22:12:47 -08002238 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED QUIES!\n",
2239 __func__);
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302240 set_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags);
2241 qla4xxx_wake_dpc(ha);
2242 } else {
2243 /* Check firmware health */
Shyam Sunder9ee91a32011-12-01 22:42:13 -08002244 if (qla4_8xxx_check_fw_alive(ha)) {
Giridhar Malavalie6bd0eb2012-01-11 02:44:16 -08002245 ql4_printk(KERN_INFO, ha, "disabling pause"
2246 " transmit on port 0 & 1.\n");
2247 qla4_8xxx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
2248 CRB_NIU_XG_PAUSE_CTL_P0 |
2249 CRB_NIU_XG_PAUSE_CTL_P1);
Shyam Sunder9ee91a32011-12-01 22:42:13 -08002250 halt_status = qla4_8xxx_rd_32(ha,
2251 QLA82XX_PEG_HALT_STATUS1);
2252
Vikas Chaudhary46801ba2012-02-13 18:30:45 +05302253 if (QLA82XX_FWERROR_CODE(halt_status) == 0x67)
Nilesh Javali527c8b22012-01-11 02:44:17 -08002254 ql4_printk(KERN_ERR, ha, "%s:"
2255 " Firmware aborted with"
2256 " error code 0x00006700."
2257 " Device is being reset\n",
2258 __func__);
2259
Shyam Sunder9ee91a32011-12-01 22:42:13 -08002260 /* Since we cannot change dev_state in interrupt
2261 * context, set appropriate DPC flag then wakeup
2262 * DPC */
2263 if (halt_status & HALT_STATUS_UNRECOVERABLE)
2264 set_bit(DPC_HA_UNRECOVERABLE,
2265 &ha->dpc_flags);
2266 else {
2267 ql4_printk(KERN_INFO, ha, "%s: detect "
2268 "abort needed!\n", __func__);
2269 set_bit(DPC_RESET_HA, &ha->dpc_flags);
2270 }
2271 qla4xxx_mailbox_premature_completion(ha);
2272 qla4xxx_wake_dpc(ha);
2273 }
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302274 }
2275 }
2276}
2277
Lalit Chandivade4a4bc2e2011-12-16 01:58:55 -08002278static void qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)
Mike Christie13483732011-12-01 21:38:41 -06002279{
2280 struct iscsi_session *sess;
2281 struct ddb_entry *ddb_entry;
2282 struct scsi_qla_host *ha;
2283
2284 sess = cls_sess->dd_data;
2285 ddb_entry = sess->dd_data;
2286 ha = ddb_entry->ha;
2287
2288 if (!(ddb_entry->ddb_type == FLASH_DDB))
2289 return;
2290
2291 if (adapter_up(ha) && !test_bit(DF_RELOGIN, &ddb_entry->flags) &&
2292 !iscsi_is_session_online(cls_sess)) {
2293 if (atomic_read(&ddb_entry->retry_relogin_timer) !=
2294 INVALID_ENTRY) {
2295 if (atomic_read(&ddb_entry->retry_relogin_timer) ==
2296 0) {
2297 atomic_set(&ddb_entry->retry_relogin_timer,
2298 INVALID_ENTRY);
2299 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
2300 set_bit(DF_RELOGIN, &ddb_entry->flags);
2301 DEBUG2(ql4_printk(KERN_INFO, ha,
2302 "%s: index [%d] login device\n",
2303 __func__, ddb_entry->fw_ddb_index));
2304 } else
2305 atomic_dec(&ddb_entry->retry_relogin_timer);
2306 }
2307 }
2308
2309 /* Wait for relogin to timeout */
2310 if (atomic_read(&ddb_entry->relogin_timer) &&
2311 (atomic_dec_and_test(&ddb_entry->relogin_timer) != 0)) {
2312 /*
2313 * If the relogin times out and the device is
2314 * still NOT ONLINE then try and relogin again.
2315 */
2316 if (!iscsi_is_session_online(cls_sess)) {
2317 /* Reset retry relogin timer */
2318 atomic_inc(&ddb_entry->relogin_retry_count);
2319 DEBUG2(ql4_printk(KERN_INFO, ha,
2320 "%s: index[%d] relogin timed out-retrying"
2321 " relogin (%d), retry (%d)\n", __func__,
2322 ddb_entry->fw_ddb_index,
2323 atomic_read(&ddb_entry->relogin_retry_count),
2324 ddb_entry->default_time2wait + 4));
2325 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
2326 atomic_set(&ddb_entry->retry_relogin_timer,
2327 ddb_entry->default_time2wait + 4);
2328 }
2329 }
2330}
2331
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302332/**
David Somayajuluafaf5a22006-09-19 10:28:00 -07002333 * qla4xxx_timer - checks every second for work to do.
2334 * @ha: Pointer to host adapter structure.
2335 **/
2336static void qla4xxx_timer(struct scsi_qla_host *ha)
2337{
David Somayajuluafaf5a22006-09-19 10:28:00 -07002338 int start_dpc = 0;
Lalit Chandivade2232be02010-07-30 14:38:47 +05302339 uint16_t w;
2340
Mike Christie13483732011-12-01 21:38:41 -06002341 iscsi_host_for_each_session(ha->host, qla4xxx_check_relogin_flash_ddb);
2342
Lalit Chandivade2232be02010-07-30 14:38:47 +05302343 /* If we are in the middle of AER/EEH processing
2344 * skip any processing and reschedule the timer
2345 */
2346 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
2347 mod_timer(&ha->timer, jiffies + HZ);
2348 return;
2349 }
2350
2351 /* Hardware read to trigger an EEH error during mailbox waits. */
2352 if (!pci_channel_offline(ha->pdev))
2353 pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
David Somayajuluafaf5a22006-09-19 10:28:00 -07002354
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302355 if (is_qla8022(ha)) {
2356 qla4_8xxx_watchdog(ha);
2357 }
2358
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302359 if (!is_qla8022(ha)) {
2360 /* Check for heartbeat interval. */
2361 if (ha->firmware_options & FWOPT_HEARTBEAT_ENABLE &&
2362 ha->heartbeat_interval != 0) {
2363 ha->seconds_since_last_heartbeat++;
2364 if (ha->seconds_since_last_heartbeat >
2365 ha->heartbeat_interval + 2)
2366 set_bit(DPC_RESET_HA, &ha->dpc_flags);
2367 }
David Somayajuluafaf5a22006-09-19 10:28:00 -07002368 }
2369
Vikas Chaudharyff884432011-08-29 23:43:02 +05302370 /* Process any deferred work. */
2371 if (!list_empty(&ha->work_list))
2372 start_dpc++;
2373
David Somayajuluafaf5a22006-09-19 10:28:00 -07002374 /* Wakeup the dpc routine for this adapter, if needed. */
Lalit Chandivade1b468072011-05-17 23:17:09 -07002375 if (start_dpc ||
David Somayajuluafaf5a22006-09-19 10:28:00 -07002376 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
2377 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags) ||
2378 test_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags) ||
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302379 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) ||
David Somayajuluafaf5a22006-09-19 10:28:00 -07002380 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
2381 test_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags) ||
Vikas Chaudhary065aa1b2010-04-28 11:38:11 +05302382 test_bit(DPC_LINK_CHANGED, &ha->dpc_flags) ||
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302383 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) ||
2384 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) ||
Lalit Chandivade1b468072011-05-17 23:17:09 -07002385 test_bit(DPC_AEN, &ha->dpc_flags)) {
David Somayajuluafaf5a22006-09-19 10:28:00 -07002386 DEBUG2(printk("scsi%ld: %s: scheduling dpc routine"
2387 " - dpc flags = 0x%lx\n",
2388 ha->host_no, __func__, ha->dpc_flags));
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302389 qla4xxx_wake_dpc(ha);
David Somayajuluafaf5a22006-09-19 10:28:00 -07002390 }
2391
2392 /* Reschedule timer thread to call us back in one second */
2393 mod_timer(&ha->timer, jiffies + HZ);
2394
2395 DEBUG2(ha->seconds_since_last_intr++);
2396}
2397
2398/**
2399 * qla4xxx_cmd_wait - waits for all outstanding commands to complete
2400 * @ha: Pointer to host adapter structure.
2401 *
2402 * This routine stalls the driver until all outstanding commands are returned.
2403 * Caller must release the Hardware Lock prior to calling this routine.
2404 **/
2405static int qla4xxx_cmd_wait(struct scsi_qla_host *ha)
2406{
2407 uint32_t index = 0;
David Somayajuluafaf5a22006-09-19 10:28:00 -07002408 unsigned long flags;
2409 struct scsi_cmnd *cmd;
David Somayajuluafaf5a22006-09-19 10:28:00 -07002410
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302411 unsigned long wtime = jiffies + (WAIT_CMD_TOV * HZ);
2412
2413 DEBUG2(ql4_printk(KERN_INFO, ha, "Wait up to %d seconds for cmds to "
2414 "complete\n", WAIT_CMD_TOV));
2415
2416 while (!time_after_eq(jiffies, wtime)) {
David Somayajuluafaf5a22006-09-19 10:28:00 -07002417 spin_lock_irqsave(&ha->hardware_lock, flags);
2418 /* Find a command that hasn't completed. */
2419 for (index = 0; index < ha->host->can_queue; index++) {
2420 cmd = scsi_host_find_tag(ha->host, index);
Mike Christiea1e00632010-10-26 05:45:30 -07002421 /*
2422 * We cannot just check if the index is valid,
2423 * becase if we are run from the scsi eh, then
2424 * the scsi/block layer is going to prevent
2425 * the tag from being released.
2426 */
2427 if (cmd != NULL && CMD_SP(cmd))
David Somayajuluafaf5a22006-09-19 10:28:00 -07002428 break;
2429 }
2430 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2431
2432 /* If No Commands are pending, wait is complete */
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302433 if (index == ha->host->can_queue)
2434 return QLA_SUCCESS;
David Somayajuluafaf5a22006-09-19 10:28:00 -07002435
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302436 msleep(1000);
2437 }
2438 /* If we timed out on waiting for commands to come back
2439 * return ERROR. */
2440 return QLA_ERROR;
David Somayajuluafaf5a22006-09-19 10:28:00 -07002441}
2442
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302443int qla4xxx_hw_reset(struct scsi_qla_host *ha)
David Somayajuluafaf5a22006-09-19 10:28:00 -07002444{
David Somayajuluafaf5a22006-09-19 10:28:00 -07002445 uint32_t ctrl_status;
David C Somayajulu477ffb92007-01-22 12:26:11 -08002446 unsigned long flags = 0;
2447
2448 DEBUG2(printk(KERN_ERR "scsi%ld: %s\n", ha->host_no, __func__));
David Somayajuluafaf5a22006-09-19 10:28:00 -07002449
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302450 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS)
2451 return QLA_ERROR;
2452
David Somayajuluafaf5a22006-09-19 10:28:00 -07002453 spin_lock_irqsave(&ha->hardware_lock, flags);
2454
2455 /*
2456 * If the SCSI Reset Interrupt bit is set, clear it.
2457 * Otherwise, the Soft Reset won't work.
2458 */
2459 ctrl_status = readw(&ha->reg->ctrl_status);
2460 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0)
2461 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status);
2462
2463 /* Issue Soft Reset */
2464 writel(set_rmask(CSR_SOFT_RESET), &ha->reg->ctrl_status);
2465 readl(&ha->reg->ctrl_status);
2466
2467 spin_unlock_irqrestore(&ha->hardware_lock, flags);
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302468 return QLA_SUCCESS;
David C Somayajulu477ffb92007-01-22 12:26:11 -08002469}
2470
2471/**
2472 * qla4xxx_soft_reset - performs soft reset.
2473 * @ha: Pointer to host adapter structure.
2474 **/
2475int qla4xxx_soft_reset(struct scsi_qla_host *ha)
2476{
2477 uint32_t max_wait_time;
2478 unsigned long flags = 0;
Vikas Chaudharyf931c532010-10-06 22:48:07 -07002479 int status;
David C Somayajulu477ffb92007-01-22 12:26:11 -08002480 uint32_t ctrl_status;
2481
Vikas Chaudharyf931c532010-10-06 22:48:07 -07002482 status = qla4xxx_hw_reset(ha);
2483 if (status != QLA_SUCCESS)
2484 return status;
David Somayajuluafaf5a22006-09-19 10:28:00 -07002485
Vikas Chaudharyf931c532010-10-06 22:48:07 -07002486 status = QLA_ERROR;
David Somayajuluafaf5a22006-09-19 10:28:00 -07002487 /* Wait until the Network Reset Intr bit is cleared */
2488 max_wait_time = RESET_INTR_TOV;
2489 do {
2490 spin_lock_irqsave(&ha->hardware_lock, flags);
2491 ctrl_status = readw(&ha->reg->ctrl_status);
2492 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2493
2494 if ((ctrl_status & CSR_NET_RESET_INTR) == 0)
2495 break;
2496
2497 msleep(1000);
2498 } while ((--max_wait_time));
2499
2500 if ((ctrl_status & CSR_NET_RESET_INTR) != 0) {
2501 DEBUG2(printk(KERN_WARNING
2502 "scsi%ld: Network Reset Intr not cleared by "
2503 "Network function, clearing it now!\n",
2504 ha->host_no));
2505 spin_lock_irqsave(&ha->hardware_lock, flags);
2506 writel(set_rmask(CSR_NET_RESET_INTR), &ha->reg->ctrl_status);
2507 readl(&ha->reg->ctrl_status);
2508 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2509 }
2510
2511 /* Wait until the firmware tells us the Soft Reset is done */
2512 max_wait_time = SOFT_RESET_TOV;
2513 do {
2514 spin_lock_irqsave(&ha->hardware_lock, flags);
2515 ctrl_status = readw(&ha->reg->ctrl_status);
2516 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2517
2518 if ((ctrl_status & CSR_SOFT_RESET) == 0) {
2519 status = QLA_SUCCESS;
2520 break;
2521 }
2522
2523 msleep(1000);
2524 } while ((--max_wait_time));
2525
2526 /*
2527 * Also, make sure that the SCSI Reset Interrupt bit has been cleared
2528 * after the soft reset has taken place.
2529 */
2530 spin_lock_irqsave(&ha->hardware_lock, flags);
2531 ctrl_status = readw(&ha->reg->ctrl_status);
2532 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) {
2533 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status);
2534 readl(&ha->reg->ctrl_status);
2535 }
2536 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2537
2538 /* If soft reset fails then most probably the bios on other
2539 * function is also enabled.
2540 * Since the initialization is sequential the other fn
2541 * wont be able to acknowledge the soft reset.
2542 * Issue a force soft reset to workaround this scenario.
2543 */
2544 if (max_wait_time == 0) {
2545 /* Issue Force Soft Reset */
2546 spin_lock_irqsave(&ha->hardware_lock, flags);
2547 writel(set_rmask(CSR_FORCE_SOFT_RESET), &ha->reg->ctrl_status);
2548 readl(&ha->reg->ctrl_status);
2549 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2550 /* Wait until the firmware tells us the Soft Reset is done */
2551 max_wait_time = SOFT_RESET_TOV;
2552 do {
2553 spin_lock_irqsave(&ha->hardware_lock, flags);
2554 ctrl_status = readw(&ha->reg->ctrl_status);
2555 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2556
2557 if ((ctrl_status & CSR_FORCE_SOFT_RESET) == 0) {
2558 status = QLA_SUCCESS;
2559 break;
2560 }
2561
2562 msleep(1000);
2563 } while ((--max_wait_time));
2564 }
2565
2566 return status;
2567}
2568
2569/**
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302570 * qla4xxx_abort_active_cmds - returns all outstanding i/o requests to O.S.
David Somayajuluafaf5a22006-09-19 10:28:00 -07002571 * @ha: Pointer to host adapter structure.
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302572 * @res: returned scsi status
David Somayajuluafaf5a22006-09-19 10:28:00 -07002573 *
2574 * This routine is called just prior to a HARD RESET to return all
2575 * outstanding commands back to the Operating System.
2576 * Caller should make sure that the following locks are released
2577 * before this calling routine: Hardware lock, and io_request_lock.
2578 **/
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302579static void qla4xxx_abort_active_cmds(struct scsi_qla_host *ha, int res)
David Somayajuluafaf5a22006-09-19 10:28:00 -07002580{
2581 struct srb *srb;
2582 int i;
2583 unsigned long flags;
2584
2585 spin_lock_irqsave(&ha->hardware_lock, flags);
2586 for (i = 0; i < ha->host->can_queue; i++) {
2587 srb = qla4xxx_del_from_active_array(ha, i);
2588 if (srb != NULL) {
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302589 srb->cmd->result = res;
Vikas Chaudhary09a0f712010-04-28 11:42:24 +05302590 kref_put(&srb->srb_ref, qla4xxx_srb_compl);
David Somayajuluafaf5a22006-09-19 10:28:00 -07002591 }
2592 }
2593 spin_unlock_irqrestore(&ha->hardware_lock, flags);
David Somayajuluafaf5a22006-09-19 10:28:00 -07002594}
2595
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302596void qla4xxx_dead_adapter_cleanup(struct scsi_qla_host *ha)
2597{
2598 clear_bit(AF_ONLINE, &ha->flags);
2599
2600 /* Disable the board */
2601 ql4_printk(KERN_INFO, ha, "Disabling the board\n");
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302602
2603 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
2604 qla4xxx_mark_all_devices_missing(ha);
2605 clear_bit(AF_INIT_DONE, &ha->flags);
2606}
2607
Manish Rangankarb3a271a2011-07-25 13:48:53 -05002608static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session)
2609{
2610 struct iscsi_session *sess;
2611 struct ddb_entry *ddb_entry;
2612
2613 sess = cls_session->dd_data;
2614 ddb_entry = sess->dd_data;
2615 ddb_entry->fw_ddb_device_state = DDB_DS_SESSION_FAILED;
Mike Christie13483732011-12-01 21:38:41 -06002616
2617 if (ddb_entry->ddb_type == FLASH_DDB)
2618 iscsi_block_session(ddb_entry->sess);
2619 else
2620 iscsi_session_failure(cls_session->dd_data,
2621 ISCSI_ERR_CONN_FAILED);
Manish Rangankarb3a271a2011-07-25 13:48:53 -05002622}
2623
David Somayajuluafaf5a22006-09-19 10:28:00 -07002624/**
David Somayajuluafaf5a22006-09-19 10:28:00 -07002625 * qla4xxx_recover_adapter - recovers adapter after a fatal error
2626 * @ha: Pointer to host adapter structure.
David Somayajuluafaf5a22006-09-19 10:28:00 -07002627 **/
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302628static int qla4xxx_recover_adapter(struct scsi_qla_host *ha)
David Somayajuluafaf5a22006-09-19 10:28:00 -07002629{
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302630 int status = QLA_ERROR;
2631 uint8_t reset_chip = 0;
Sarang Radke8e0f3a62011-12-01 22:42:09 -08002632 uint32_t dev_state;
Shyam Sunder9ee91a32011-12-01 22:42:13 -08002633 unsigned long wait;
David Somayajuluafaf5a22006-09-19 10:28:00 -07002634
2635 /* Stall incoming I/O until we are done */
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302636 scsi_block_requests(ha->host);
David Somayajuluafaf5a22006-09-19 10:28:00 -07002637 clear_bit(AF_ONLINE, &ha->flags);
Manish Rangankarb3a271a2011-07-25 13:48:53 -05002638 clear_bit(AF_LINK_UP, &ha->flags);
Mike Christie50a29ae2008-03-04 13:26:53 -06002639
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302640 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: adapter OFFLINE\n", __func__));
David Somayajuluafaf5a22006-09-19 10:28:00 -07002641
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302642 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
David Somayajuluafaf5a22006-09-19 10:28:00 -07002643
Manish Rangankarb3a271a2011-07-25 13:48:53 -05002644 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session);
2645
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302646 if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
2647 reset_chip = 1;
David Somayajuluafaf5a22006-09-19 10:28:00 -07002648
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302649 /* For the DPC_RESET_HA_INTR case (ISP-4xxx specific)
2650 * do not reset adapter, jump to initialize_adapter */
2651 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
2652 status = QLA_SUCCESS;
2653 goto recover_ha_init_adapter;
David Somayajuluafaf5a22006-09-19 10:28:00 -07002654 }
2655
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302656 /* For the ISP-82xx adapter, issue a stop_firmware if invoked
2657 * from eh_host_reset or ioctl module */
2658 if (is_qla8022(ha) && !reset_chip &&
2659 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) {
2660
2661 DEBUG2(ql4_printk(KERN_INFO, ha,
2662 "scsi%ld: %s - Performing stop_firmware...\n",
2663 ha->host_no, __func__));
2664 status = ha->isp_ops->reset_firmware(ha);
2665 if (status == QLA_SUCCESS) {
Nilesh Javali2bd1e2b2010-10-06 22:49:20 -07002666 if (!test_bit(AF_FW_RECOVERY, &ha->flags))
2667 qla4xxx_cmd_wait(ha);
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302668 ha->isp_ops->disable_intrs(ha);
2669 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
2670 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
2671 } else {
2672 /* If the stop_firmware fails then
2673 * reset the entire chip */
2674 reset_chip = 1;
2675 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
2676 set_bit(DPC_RESET_HA, &ha->dpc_flags);
2677 }
2678 }
2679
2680 /* Issue full chip reset if recovering from a catastrophic error,
2681 * or if stop_firmware fails for ISP-82xx.
2682 * This is the default case for ISP-4xxx */
2683 if (!is_qla8022(ha) || reset_chip) {
Shyam Sunder9ee91a32011-12-01 22:42:13 -08002684 if (!is_qla8022(ha))
2685 goto chip_reset;
2686
2687 /* Check if 82XX firmware is alive or not
2688 * We may have arrived here from NEED_RESET
2689 * detection only */
2690 if (test_bit(AF_FW_RECOVERY, &ha->flags))
2691 goto chip_reset;
2692
2693 wait = jiffies + (FW_ALIVE_WAIT_TOV * HZ);
2694 while (time_before(jiffies, wait)) {
2695 if (qla4_8xxx_check_fw_alive(ha)) {
2696 qla4xxx_mailbox_premature_completion(ha);
2697 break;
2698 }
2699
2700 set_current_state(TASK_UNINTERRUPTIBLE);
2701 schedule_timeout(HZ);
2702 }
2703
Nilesh Javali2bd1e2b2010-10-06 22:49:20 -07002704 if (!test_bit(AF_FW_RECOVERY, &ha->flags))
2705 qla4xxx_cmd_wait(ha);
Shyam Sunder9ee91a32011-12-01 22:42:13 -08002706chip_reset:
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302707 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
2708 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
2709 DEBUG2(ql4_printk(KERN_INFO, ha,
2710 "scsi%ld: %s - Performing chip reset..\n",
2711 ha->host_no, __func__));
2712 status = ha->isp_ops->reset_chip(ha);
2713 }
2714
2715 /* Flush any pending ddb changed AENs */
2716 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
2717
2718recover_ha_init_adapter:
2719 /* Upon successful firmware/chip reset, re-initialize the adapter */
2720 if (status == QLA_SUCCESS) {
2721 /* For ISP-4xxx, force function 1 to always initialize
2722 * before function 3 to prevent both funcions from
2723 * stepping on top of the other */
2724 if (!is_qla8022(ha) && (ha->mac_index == 3))
2725 ssleep(6);
2726
2727 /* NOTE: AF_ONLINE flag set upon successful completion of
2728 * qla4xxx_initialize_adapter */
Mike Christie13483732011-12-01 21:38:41 -06002729 status = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302730 }
2731
2732 /* Retry failed adapter initialization, if necessary
2733 * Do not retry initialize_adapter for RESET_HA_INTR (ISP-4xxx specific)
2734 * case to prevent ping-pong resets between functions */
2735 if (!test_bit(AF_ONLINE, &ha->flags) &&
2736 !test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
David Somayajuluafaf5a22006-09-19 10:28:00 -07002737 /* Adapter initialization failed, see if we can retry
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302738 * resetting the ha.
2739 * Since we don't want to block the DPC for too long
2740 * with multiple resets in the same thread,
2741 * utilize DPC to retry */
Sarang Radke8e0f3a62011-12-01 22:42:09 -08002742 if (is_qla8022(ha)) {
2743 qla4_8xxx_idc_lock(ha);
2744 dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
2745 qla4_8xxx_idc_unlock(ha);
2746 if (dev_state == QLA82XX_DEV_FAILED) {
2747 ql4_printk(KERN_INFO, ha, "%s: don't retry "
2748 "recover adapter. H/W is in Failed "
2749 "state\n", __func__);
2750 qla4xxx_dead_adapter_cleanup(ha);
2751 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
2752 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
2753 clear_bit(DPC_RESET_HA_FW_CONTEXT,
2754 &ha->dpc_flags);
2755 status = QLA_ERROR;
2756
2757 goto exit_recover;
2758 }
2759 }
2760
David Somayajuluafaf5a22006-09-19 10:28:00 -07002761 if (!test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags)) {
2762 ha->retry_reset_ha_cnt = MAX_RESET_HA_RETRIES;
2763 DEBUG2(printk("scsi%ld: recover adapter - retrying "
2764 "(%d) more times\n", ha->host_no,
2765 ha->retry_reset_ha_cnt));
2766 set_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
2767 status = QLA_ERROR;
2768 } else {
2769 if (ha->retry_reset_ha_cnt > 0) {
2770 /* Schedule another Reset HA--DPC will retry */
2771 ha->retry_reset_ha_cnt--;
2772 DEBUG2(printk("scsi%ld: recover adapter - "
2773 "retry remaining %d\n",
2774 ha->host_no,
2775 ha->retry_reset_ha_cnt));
2776 status = QLA_ERROR;
2777 }
2778
2779 if (ha->retry_reset_ha_cnt == 0) {
2780 /* Recover adapter retries have been exhausted.
2781 * Adapter DEAD */
2782 DEBUG2(printk("scsi%ld: recover adapter "
2783 "failed - board disabled\n",
2784 ha->host_no));
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302785 qla4xxx_dead_adapter_cleanup(ha);
David Somayajuluafaf5a22006-09-19 10:28:00 -07002786 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
2787 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302788 clear_bit(DPC_RESET_HA_FW_CONTEXT,
David Somayajuluafaf5a22006-09-19 10:28:00 -07002789 &ha->dpc_flags);
2790 status = QLA_ERROR;
2791 }
2792 }
2793 } else {
2794 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302795 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
David Somayajuluafaf5a22006-09-19 10:28:00 -07002796 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
2797 }
2798
Sarang Radke8e0f3a62011-12-01 22:42:09 -08002799exit_recover:
David Somayajuluafaf5a22006-09-19 10:28:00 -07002800 ha->adapter_error_count++;
2801
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302802 if (test_bit(AF_ONLINE, &ha->flags))
2803 ha->isp_ops->enable_intrs(ha);
David Somayajuluafaf5a22006-09-19 10:28:00 -07002804
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302805 scsi_unblock_requests(ha->host);
2806
2807 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
2808 DEBUG2(printk("scsi%ld: recover adapter: %s\n", ha->host_no,
Lucas De Marchi25985ed2011-03-30 22:57:33 -03002809 status == QLA_ERROR ? "FAILED" : "SUCCEEDED"));
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302810
David Somayajuluafaf5a22006-09-19 10:28:00 -07002811 return status;
2812}
2813
Manish Rangankarb3a271a2011-07-25 13:48:53 -05002814static void qla4xxx_relogin_devices(struct iscsi_cls_session *cls_session)
Vikas Chaudhary2d7924e2011-03-21 03:34:33 -07002815{
Manish Rangankarb3a271a2011-07-25 13:48:53 -05002816 struct iscsi_session *sess;
2817 struct ddb_entry *ddb_entry;
2818 struct scsi_qla_host *ha;
Vikas Chaudhary2d7924e2011-03-21 03:34:33 -07002819
Manish Rangankarb3a271a2011-07-25 13:48:53 -05002820 sess = cls_session->dd_data;
2821 ddb_entry = sess->dd_data;
2822 ha = ddb_entry->ha;
2823 if (!iscsi_is_session_online(cls_session)) {
2824 if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) {
2825 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
2826 " unblock session\n", ha->host_no, __func__,
2827 ddb_entry->fw_ddb_index);
2828 iscsi_unblock_session(ddb_entry->sess);
2829 } else {
2830 /* Trigger relogin */
Mike Christie13483732011-12-01 21:38:41 -06002831 if (ddb_entry->ddb_type == FLASH_DDB) {
2832 if (!test_bit(DF_RELOGIN, &ddb_entry->flags))
2833 qla4xxx_arm_relogin_timer(ddb_entry);
2834 } else
2835 iscsi_session_failure(cls_session->dd_data,
2836 ISCSI_ERR_CONN_FAILED);
Vikas Chaudhary2d7924e2011-03-21 03:34:33 -07002837 }
2838 }
2839}
2840
Mike Christie13483732011-12-01 21:38:41 -06002841int qla4xxx_unblock_flash_ddb(struct iscsi_cls_session *cls_session)
2842{
2843 struct iscsi_session *sess;
2844 struct ddb_entry *ddb_entry;
2845 struct scsi_qla_host *ha;
2846
2847 sess = cls_session->dd_data;
2848 ddb_entry = sess->dd_data;
2849 ha = ddb_entry->ha;
2850 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
2851 " unblock session\n", ha->host_no, __func__,
2852 ddb_entry->fw_ddb_index);
2853
2854 iscsi_unblock_session(ddb_entry->sess);
2855
2856 /* Start scan target */
2857 if (test_bit(AF_ONLINE, &ha->flags)) {
2858 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
2859 " start scan\n", ha->host_no, __func__,
2860 ddb_entry->fw_ddb_index);
2861 scsi_queue_work(ha->host, &ddb_entry->sess->scan_work);
2862 }
2863 return QLA_SUCCESS;
2864}
2865
2866int qla4xxx_unblock_ddb(struct iscsi_cls_session *cls_session)
2867{
2868 struct iscsi_session *sess;
2869 struct ddb_entry *ddb_entry;
2870 struct scsi_qla_host *ha;
2871
2872 sess = cls_session->dd_data;
2873 ddb_entry = sess->dd_data;
2874 ha = ddb_entry->ha;
2875 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
2876 " unblock user space session\n", ha->host_no, __func__,
2877 ddb_entry->fw_ddb_index);
2878 iscsi_conn_start(ddb_entry->conn);
2879 iscsi_conn_login_event(ddb_entry->conn,
2880 ISCSI_CONN_STATE_LOGGED_IN);
2881
2882 return QLA_SUCCESS;
2883}
2884
Manish Rangankarb3a271a2011-07-25 13:48:53 -05002885static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha)
2886{
2887 iscsi_host_for_each_session(ha->host, qla4xxx_relogin_devices);
2888}
2889
Mike Christie13483732011-12-01 21:38:41 -06002890static void qla4xxx_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)
2891{
2892 uint16_t relogin_timer;
2893 struct iscsi_session *sess;
2894 struct ddb_entry *ddb_entry;
2895 struct scsi_qla_host *ha;
2896
2897 sess = cls_sess->dd_data;
2898 ddb_entry = sess->dd_data;
2899 ha = ddb_entry->ha;
2900
2901 relogin_timer = max(ddb_entry->default_relogin_timeout,
2902 (uint16_t)RELOGIN_TOV);
2903 atomic_set(&ddb_entry->relogin_timer, relogin_timer);
2904
2905 DEBUG2(ql4_printk(KERN_INFO, ha,
2906 "scsi%ld: Relogin index [%d]. TOV=%d\n", ha->host_no,
2907 ddb_entry->fw_ddb_index, relogin_timer));
2908
2909 qla4xxx_login_flash_ddb(cls_sess);
2910}
2911
2912static void qla4xxx_dpc_relogin(struct iscsi_cls_session *cls_sess)
2913{
2914 struct iscsi_session *sess;
2915 struct ddb_entry *ddb_entry;
2916 struct scsi_qla_host *ha;
2917
2918 sess = cls_sess->dd_data;
2919 ddb_entry = sess->dd_data;
2920 ha = ddb_entry->ha;
2921
2922 if (!(ddb_entry->ddb_type == FLASH_DDB))
2923 return;
2924
2925 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags) &&
2926 !iscsi_is_session_online(cls_sess)) {
2927 DEBUG2(ql4_printk(KERN_INFO, ha,
2928 "relogin issued\n"));
2929 qla4xxx_relogin_flash_ddb(cls_sess);
2930 }
2931}
2932
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302933void qla4xxx_wake_dpc(struct scsi_qla_host *ha)
2934{
Lalit Chandivade1b468072011-05-17 23:17:09 -07002935 if (ha->dpc_thread)
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302936 queue_work(ha->dpc_thread, &ha->dpc_work);
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05302937}
2938
Vikas Chaudharyff884432011-08-29 23:43:02 +05302939static struct qla4_work_evt *
2940qla4xxx_alloc_work(struct scsi_qla_host *ha, uint32_t data_size,
2941 enum qla4_work_type type)
2942{
2943 struct qla4_work_evt *e;
2944 uint32_t size = sizeof(struct qla4_work_evt) + data_size;
2945
2946 e = kzalloc(size, GFP_ATOMIC);
2947 if (!e)
2948 return NULL;
2949
2950 INIT_LIST_HEAD(&e->list);
2951 e->type = type;
2952 return e;
2953}
2954
2955static void qla4xxx_post_work(struct scsi_qla_host *ha,
2956 struct qla4_work_evt *e)
2957{
2958 unsigned long flags;
2959
2960 spin_lock_irqsave(&ha->work_lock, flags);
2961 list_add_tail(&e->list, &ha->work_list);
2962 spin_unlock_irqrestore(&ha->work_lock, flags);
2963 qla4xxx_wake_dpc(ha);
2964}
2965
2966int qla4xxx_post_aen_work(struct scsi_qla_host *ha,
2967 enum iscsi_host_event_code aen_code,
2968 uint32_t data_size, uint8_t *data)
2969{
2970 struct qla4_work_evt *e;
2971
2972 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_AEN);
2973 if (!e)
2974 return QLA_ERROR;
2975
2976 e->u.aen.code = aen_code;
2977 e->u.aen.data_size = data_size;
2978 memcpy(e->u.aen.data, data, data_size);
2979
2980 qla4xxx_post_work(ha, e);
2981
2982 return QLA_SUCCESS;
2983}
2984
Vikas Chaudharyc0b9d3f2012-02-13 18:30:49 +05302985int qla4xxx_post_ping_evt_work(struct scsi_qla_host *ha,
2986 uint32_t status, uint32_t pid,
2987 uint32_t data_size, uint8_t *data)
2988{
2989 struct qla4_work_evt *e;
2990
2991 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_PING_STATUS);
2992 if (!e)
2993 return QLA_ERROR;
2994
2995 e->u.ping.status = status;
2996 e->u.ping.pid = pid;
2997 e->u.ping.data_size = data_size;
2998 memcpy(e->u.ping.data, data, data_size);
2999
3000 qla4xxx_post_work(ha, e);
3001
3002 return QLA_SUCCESS;
3003}
3004
Vikas Chaudharyff884432011-08-29 23:43:02 +05303005void qla4xxx_do_work(struct scsi_qla_host *ha)
3006{
3007 struct qla4_work_evt *e, *tmp;
3008 unsigned long flags;
3009 LIST_HEAD(work);
3010
3011 spin_lock_irqsave(&ha->work_lock, flags);
3012 list_splice_init(&ha->work_list, &work);
3013 spin_unlock_irqrestore(&ha->work_lock, flags);
3014
3015 list_for_each_entry_safe(e, tmp, &work, list) {
3016 list_del_init(&e->list);
3017
3018 switch (e->type) {
3019 case QLA4_EVENT_AEN:
3020 iscsi_post_host_event(ha->host_no,
3021 &qla4xxx_iscsi_transport,
3022 e->u.aen.code,
3023 e->u.aen.data_size,
3024 e->u.aen.data);
3025 break;
Vikas Chaudharyc0b9d3f2012-02-13 18:30:49 +05303026 case QLA4_EVENT_PING_STATUS:
3027 iscsi_ping_comp_event(ha->host_no,
3028 &qla4xxx_iscsi_transport,
3029 e->u.ping.status,
3030 e->u.ping.pid,
3031 e->u.ping.data_size,
3032 e->u.ping.data);
3033 break;
Vikas Chaudharyff884432011-08-29 23:43:02 +05303034 default:
3035 ql4_printk(KERN_WARNING, ha, "event type: 0x%x not "
3036 "supported", e->type);
3037 }
3038 kfree(e);
3039 }
3040}
3041
David Somayajuluafaf5a22006-09-19 10:28:00 -07003042/**
3043 * qla4xxx_do_dpc - dpc routine
3044 * @data: in our case pointer to adapter structure
3045 *
3046 * This routine is a task that is schedule by the interrupt handler
3047 * to perform the background processing for interrupts. We put it
3048 * on a task queue that is consumed whenever the scheduler runs; that's
3049 * so you can do anything (i.e. put the process to sleep etc). In fact,
3050 * the mid-level tries to sleep when it reaches the driver threshold
3051 * "host->can_queue". This can cause a panic if we were in our interrupt code.
3052 **/
David Howellsc4028952006-11-22 14:57:56 +00003053static void qla4xxx_do_dpc(struct work_struct *work)
David Somayajuluafaf5a22006-09-19 10:28:00 -07003054{
David Howellsc4028952006-11-22 14:57:56 +00003055 struct scsi_qla_host *ha =
3056 container_of(work, struct scsi_qla_host, dpc_work);
David C Somayajulu477ffb92007-01-22 12:26:11 -08003057 int status = QLA_ERROR;
David Somayajuluafaf5a22006-09-19 10:28:00 -07003058
David C Somayajuluf26b9042006-11-15 16:41:09 -08003059 DEBUG2(printk("scsi%ld: %s: DPC handler waking up."
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05303060 "flags = 0x%08lx, dpc_flags = 0x%08lx\n",
3061 ha->host_no, __func__, ha->flags, ha->dpc_flags))
David Somayajuluafaf5a22006-09-19 10:28:00 -07003062
3063 /* Initialization not yet finished. Don't do anything yet. */
3064 if (!test_bit(AF_INIT_DONE, &ha->flags))
Lalit Chandivade1b468072011-05-17 23:17:09 -07003065 return;
David Somayajuluafaf5a22006-09-19 10:28:00 -07003066
Lalit Chandivade2232be02010-07-30 14:38:47 +05303067 if (test_bit(AF_EEH_BUSY, &ha->flags)) {
3068 DEBUG2(printk(KERN_INFO "scsi%ld: %s: flags = %lx\n",
3069 ha->host_no, __func__, ha->flags));
Lalit Chandivade1b468072011-05-17 23:17:09 -07003070 return;
Lalit Chandivade2232be02010-07-30 14:38:47 +05303071 }
3072
Vikas Chaudharyff884432011-08-29 23:43:02 +05303073 /* post events to application */
3074 qla4xxx_do_work(ha);
3075
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05303076 if (is_qla8022(ha)) {
3077 if (test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags)) {
3078 qla4_8xxx_idc_lock(ha);
3079 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3080 QLA82XX_DEV_FAILED);
3081 qla4_8xxx_idc_unlock(ha);
3082 ql4_printk(KERN_INFO, ha, "HW State: FAILED\n");
3083 qla4_8xxx_device_state_handler(ha);
3084 }
3085 if (test_and_clear_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) {
3086 qla4_8xxx_need_qsnt_handler(ha);
3087 }
3088 }
3089
3090 if (!test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) &&
3091 (test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
David Somayajuluafaf5a22006-09-19 10:28:00 -07003092 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05303093 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))) {
3094 if (ql4xdontresethba) {
3095 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n",
3096 ha->host_no, __func__));
3097 clear_bit(DPC_RESET_HA, &ha->dpc_flags);
3098 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags);
3099 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
3100 goto dpc_post_reset_ha;
3101 }
3102 if (test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) ||
3103 test_bit(DPC_RESET_HA, &ha->dpc_flags))
3104 qla4xxx_recover_adapter(ha);
David Somayajuluafaf5a22006-09-19 10:28:00 -07003105
David C Somayajulu477ffb92007-01-22 12:26:11 -08003106 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) {
David Somayajuluafaf5a22006-09-19 10:28:00 -07003107 uint8_t wait_time = RESET_INTR_TOV;
David Somayajuluafaf5a22006-09-19 10:28:00 -07003108
David Somayajuluafaf5a22006-09-19 10:28:00 -07003109 while ((readw(&ha->reg->ctrl_status) &
3110 (CSR_SOFT_RESET | CSR_FORCE_SOFT_RESET)) != 0) {
3111 if (--wait_time == 0)
3112 break;
David Somayajuluafaf5a22006-09-19 10:28:00 -07003113 msleep(1000);
David Somayajuluafaf5a22006-09-19 10:28:00 -07003114 }
David Somayajuluafaf5a22006-09-19 10:28:00 -07003115 if (wait_time == 0)
3116 DEBUG2(printk("scsi%ld: %s: SR|FSR "
3117 "bit not cleared-- resetting\n",
3118 ha->host_no, __func__));
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05303119 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
David C Somayajulu477ffb92007-01-22 12:26:11 -08003120 if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS) {
3121 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05303122 status = qla4xxx_recover_adapter(ha);
David C Somayajulu477ffb92007-01-22 12:26:11 -08003123 }
3124 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags);
3125 if (status == QLA_SUCCESS)
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05303126 ha->isp_ops->enable_intrs(ha);
David Somayajuluafaf5a22006-09-19 10:28:00 -07003127 }
3128 }
3129
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05303130dpc_post_reset_ha:
David Somayajuluafaf5a22006-09-19 10:28:00 -07003131 /* ---- process AEN? --- */
3132 if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags))
3133 qla4xxx_process_aen(ha, PROCESS_ALL_AENS);
3134
3135 /* ---- Get DHCP IP Address? --- */
3136 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags))
3137 qla4xxx_get_dhcp_ip_address(ha);
3138
Mike Christie13483732011-12-01 21:38:41 -06003139 /* ---- relogin device? --- */
3140 if (adapter_up(ha) &&
3141 test_and_clear_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags)) {
3142 iscsi_host_for_each_session(ha->host, qla4xxx_dpc_relogin);
3143 }
3144
Vikas Chaudhary065aa1b2010-04-28 11:38:11 +05303145 /* ---- link change? --- */
3146 if (test_and_clear_bit(DPC_LINK_CHANGED, &ha->dpc_flags)) {
3147 if (!test_bit(AF_LINK_UP, &ha->flags)) {
3148 /* ---- link down? --- */
Vikas Chaudhary2d7924e2011-03-21 03:34:33 -07003149 qla4xxx_mark_all_devices_missing(ha);
Vikas Chaudhary065aa1b2010-04-28 11:38:11 +05303150 } else {
3151 /* ---- link up? --- *
3152 * F/W will auto login to all devices ONLY ONCE after
3153 * link up during driver initialization and runtime
3154 * fatal error recovery. Therefore, the driver must
3155 * manually relogin to devices when recovering from
3156 * connection failures, logouts, expired KATO, etc. */
Mike Christie13483732011-12-01 21:38:41 -06003157 if (test_and_clear_bit(AF_BUILD_DDB_LIST, &ha->flags)) {
3158 qla4xxx_build_ddb_list(ha, ha->is_reset);
3159 iscsi_host_for_each_session(ha->host,
3160 qla4xxx_login_flash_ddb);
3161 } else
3162 qla4xxx_relogin_all_devices(ha);
Vikas Chaudhary065aa1b2010-04-28 11:38:11 +05303163 }
3164 }
David Somayajuluafaf5a22006-09-19 10:28:00 -07003165}
3166
3167/**
3168 * qla4xxx_free_adapter - release the adapter
3169 * @ha: pointer to adapter structure
3170 **/
3171static void qla4xxx_free_adapter(struct scsi_qla_host *ha)
3172{
Sarang Radke8a288962011-12-06 02:34:10 -08003173 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
David Somayajuluafaf5a22006-09-19 10:28:00 -07003174
3175 if (test_bit(AF_INTERRUPTS_ON, &ha->flags)) {
3176 /* Turn-off interrupts on the card. */
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05303177 ha->isp_ops->disable_intrs(ha);
David Somayajuluafaf5a22006-09-19 10:28:00 -07003178 }
3179
David Somayajuluafaf5a22006-09-19 10:28:00 -07003180 /* Remove timer thread, if present */
3181 if (ha->timer_active)
3182 qla4xxx_stop_timer(ha);
3183
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05303184 /* Kill the kernel thread for this host */
3185 if (ha->dpc_thread)
3186 destroy_workqueue(ha->dpc_thread);
3187
Manish Rangankarb3a271a2011-07-25 13:48:53 -05003188 /* Kill the kernel thread for this host */
3189 if (ha->task_wq)
3190 destroy_workqueue(ha->task_wq);
3191
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05303192 /* Put firmware in known state */
3193 ha->isp_ops->reset_firmware(ha);
3194
3195 if (is_qla8022(ha)) {
3196 qla4_8xxx_idc_lock(ha);
3197 qla4_8xxx_clear_drv_active(ha);
3198 qla4_8xxx_idc_unlock(ha);
3199 }
3200
David Somayajuluafaf5a22006-09-19 10:28:00 -07003201 /* Detach interrupts */
3202 if (test_and_clear_bit(AF_IRQ_ATTACHED, &ha->flags))
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05303203 qla4xxx_free_irqs(ha);
David Somayajuluafaf5a22006-09-19 10:28:00 -07003204
David C Somayajulubee4fe82007-05-23 18:03:32 -07003205 /* free extra memory */
3206 qla4xxx_mem_free(ha);
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05303207}
David C Somayajulubee4fe82007-05-23 18:03:32 -07003208
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05303209int qla4_8xxx_iospace_config(struct scsi_qla_host *ha)
3210{
3211 int status = 0;
3212 uint8_t revision_id;
3213 unsigned long mem_base, mem_len, db_base, db_len;
3214 struct pci_dev *pdev = ha->pdev;
David Somayajuluafaf5a22006-09-19 10:28:00 -07003215
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05303216 status = pci_request_regions(pdev, DRIVER_NAME);
3217 if (status) {
3218 printk(KERN_WARNING
3219 "scsi(%ld) Failed to reserve PIO regions (%s) "
3220 "status=%d\n", ha->host_no, pci_name(pdev), status);
3221 goto iospace_error_exit;
3222 }
3223
3224 pci_read_config_byte(pdev, PCI_REVISION_ID, &revision_id);
3225 DEBUG2(printk(KERN_INFO "%s: revision-id=%d\n",
3226 __func__, revision_id));
3227 ha->revision_id = revision_id;
3228
3229 /* remap phys address */
3230 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
3231 mem_len = pci_resource_len(pdev, 0);
3232 DEBUG2(printk(KERN_INFO "%s: ioremap from %lx a size of %lx\n",
3233 __func__, mem_base, mem_len));
3234
3235 /* mapping of pcibase pointer */
3236 ha->nx_pcibase = (unsigned long)ioremap(mem_base, mem_len);
3237 if (!ha->nx_pcibase) {
3238 printk(KERN_ERR
3239 "cannot remap MMIO (%s), aborting\n", pci_name(pdev));
3240 pci_release_regions(ha->pdev);
3241 goto iospace_error_exit;
3242 }
3243
3244 /* Mapping of IO base pointer, door bell read and write pointer */
3245
3246 /* mapping of IO base pointer */
3247 ha->qla4_8xxx_reg =
3248 (struct device_reg_82xx __iomem *)((uint8_t *)ha->nx_pcibase +
3249 0xbc000 + (ha->pdev->devfn << 11));
3250
3251 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
3252 db_len = pci_resource_len(pdev, 4);
3253
Shyam Sundar2657c802010-10-06 22:50:29 -07003254 ha->nx_db_wr_ptr = (ha->pdev->devfn == 4 ? QLA82XX_CAM_RAM_DB1 :
3255 QLA82XX_CAM_RAM_DB2);
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05303256
Shyam Sundar2657c802010-10-06 22:50:29 -07003257 return 0;
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05303258iospace_error_exit:
3259 return -ENOMEM;
David Somayajuluafaf5a22006-09-19 10:28:00 -07003260}
3261
3262/***
3263 * qla4xxx_iospace_config - maps registers
3264 * @ha: pointer to adapter structure
3265 *
3266 * This routines maps HBA's registers from the pci address space
3267 * into the kernel virtual address space for memory mapped i/o.
3268 **/
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05303269int qla4xxx_iospace_config(struct scsi_qla_host *ha)
David Somayajuluafaf5a22006-09-19 10:28:00 -07003270{
3271 unsigned long pio, pio_len, pio_flags;
3272 unsigned long mmio, mmio_len, mmio_flags;
3273
3274 pio = pci_resource_start(ha->pdev, 0);
3275 pio_len = pci_resource_len(ha->pdev, 0);
3276 pio_flags = pci_resource_flags(ha->pdev, 0);
3277 if (pio_flags & IORESOURCE_IO) {
3278 if (pio_len < MIN_IOBASE_LEN) {
Vikas Chaudharyc2660df2010-07-10 14:51:02 +05303279 ql4_printk(KERN_WARNING, ha,
David Somayajuluafaf5a22006-09-19 10:28:00 -07003280 "Invalid PCI I/O region size\n");
3281 pio = 0;
3282 }
3283 } else {
Vikas Chaudharyc2660df2010-07-10 14:51:02 +05303284 ql4_printk(KERN_WARNING, ha, "region #0 not a PIO resource\n");
David Somayajuluafaf5a22006-09-19 10:28:00 -07003285 pio = 0;
3286 }
3287
3288 /* Use MMIO operations for all accesses. */
3289 mmio = pci_resource_start(ha->pdev, 1);
3290 mmio_len = pci_resource_len(ha->pdev, 1);
3291 mmio_flags = pci_resource_flags(ha->pdev, 1);
3292
3293 if (!(mmio_flags & IORESOURCE_MEM)) {
Vikas Chaudharyc2660df2010-07-10 14:51:02 +05303294 ql4_printk(KERN_ERR, ha,
3295 "region #0 not an MMIO resource, aborting\n");
David Somayajuluafaf5a22006-09-19 10:28:00 -07003296
3297 goto iospace_error_exit;
3298 }
Vikas Chaudharyc2660df2010-07-10 14:51:02 +05303299
David Somayajuluafaf5a22006-09-19 10:28:00 -07003300 if (mmio_len < MIN_IOBASE_LEN) {
Vikas Chaudharyc2660df2010-07-10 14:51:02 +05303301 ql4_printk(KERN_ERR, ha,
3302 "Invalid PCI mem region size, aborting\n");
David Somayajuluafaf5a22006-09-19 10:28:00 -07003303 goto iospace_error_exit;
3304 }
3305
3306 if (pci_request_regions(ha->pdev, DRIVER_NAME)) {
Vikas Chaudharyc2660df2010-07-10 14:51:02 +05303307 ql4_printk(KERN_WARNING, ha,
3308 "Failed to reserve PIO/MMIO regions\n");
David Somayajuluafaf5a22006-09-19 10:28:00 -07003309
3310 goto iospace_error_exit;
3311 }
3312
3313 ha->pio_address = pio;
3314 ha->pio_length = pio_len;
3315 ha->reg = ioremap(mmio, MIN_IOBASE_LEN);
3316 if (!ha->reg) {
Vikas Chaudharyc2660df2010-07-10 14:51:02 +05303317 ql4_printk(KERN_ERR, ha,
3318 "cannot remap MMIO, aborting\n");
David Somayajuluafaf5a22006-09-19 10:28:00 -07003319
3320 goto iospace_error_exit;
3321 }
3322
3323 return 0;
3324
3325iospace_error_exit:
3326 return -ENOMEM;
3327}
3328
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05303329static struct isp_operations qla4xxx_isp_ops = {
3330 .iospace_config = qla4xxx_iospace_config,
3331 .pci_config = qla4xxx_pci_config,
3332 .disable_intrs = qla4xxx_disable_intrs,
3333 .enable_intrs = qla4xxx_enable_intrs,
3334 .start_firmware = qla4xxx_start_firmware,
3335 .intr_handler = qla4xxx_intr_handler,
3336 .interrupt_service_routine = qla4xxx_interrupt_service_routine,
3337 .reset_chip = qla4xxx_soft_reset,
3338 .reset_firmware = qla4xxx_hw_reset,
3339 .queue_iocb = qla4xxx_queue_iocb,
3340 .complete_iocb = qla4xxx_complete_iocb,
3341 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out,
3342 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in,
3343 .get_sys_info = qla4xxx_get_sys_info,
3344};
3345
3346static struct isp_operations qla4_8xxx_isp_ops = {
3347 .iospace_config = qla4_8xxx_iospace_config,
3348 .pci_config = qla4_8xxx_pci_config,
3349 .disable_intrs = qla4_8xxx_disable_intrs,
3350 .enable_intrs = qla4_8xxx_enable_intrs,
3351 .start_firmware = qla4_8xxx_load_risc,
3352 .intr_handler = qla4_8xxx_intr_handler,
3353 .interrupt_service_routine = qla4_8xxx_interrupt_service_routine,
3354 .reset_chip = qla4_8xxx_isp_reset,
3355 .reset_firmware = qla4_8xxx_stop_firmware,
3356 .queue_iocb = qla4_8xxx_queue_iocb,
3357 .complete_iocb = qla4_8xxx_complete_iocb,
3358 .rd_shdw_req_q_out = qla4_8xxx_rd_shdw_req_q_out,
3359 .rd_shdw_rsp_q_in = qla4_8xxx_rd_shdw_rsp_q_in,
3360 .get_sys_info = qla4_8xxx_get_sys_info,
3361};
3362
3363uint16_t qla4xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha)
3364{
3365 return (uint16_t)le32_to_cpu(ha->shadow_regs->req_q_out);
3366}
3367
3368uint16_t qla4_8xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha)
3369{
3370 return (uint16_t)le32_to_cpu(readl(&ha->qla4_8xxx_reg->req_q_out));
3371}
3372
3373uint16_t qla4xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha)
3374{
3375 return (uint16_t)le32_to_cpu(ha->shadow_regs->rsp_q_in);
3376}
3377
3378uint16_t qla4_8xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha)
3379{
3380 return (uint16_t)le32_to_cpu(readl(&ha->qla4_8xxx_reg->rsp_q_in));
3381}
3382
Manish Rangankar2a991c22011-07-25 13:48:55 -05003383static ssize_t qla4xxx_show_boot_eth_info(void *data, int type, char *buf)
3384{
3385 struct scsi_qla_host *ha = data;
3386 char *str = buf;
3387 int rc;
3388
3389 switch (type) {
3390 case ISCSI_BOOT_ETH_FLAGS:
3391 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT);
3392 break;
3393 case ISCSI_BOOT_ETH_INDEX:
3394 rc = sprintf(str, "0\n");
3395 break;
3396 case ISCSI_BOOT_ETH_MAC:
3397 rc = sysfs_format_mac(str, ha->my_mac,
3398 MAC_ADDR_LEN);
3399 break;
3400 default:
3401 rc = -ENOSYS;
3402 break;
3403 }
3404 return rc;
3405}
3406
Al Viro587a1f12011-07-23 23:11:19 -04003407static umode_t qla4xxx_eth_get_attr_visibility(void *data, int type)
Manish Rangankar2a991c22011-07-25 13:48:55 -05003408{
3409 int rc;
3410
3411 switch (type) {
3412 case ISCSI_BOOT_ETH_FLAGS:
3413 case ISCSI_BOOT_ETH_MAC:
3414 case ISCSI_BOOT_ETH_INDEX:
3415 rc = S_IRUGO;
3416 break;
3417 default:
3418 rc = 0;
3419 break;
3420 }
3421 return rc;
3422}
3423
3424static ssize_t qla4xxx_show_boot_ini_info(void *data, int type, char *buf)
3425{
3426 struct scsi_qla_host *ha = data;
3427 char *str = buf;
3428 int rc;
3429
3430 switch (type) {
3431 case ISCSI_BOOT_INI_INITIATOR_NAME:
3432 rc = sprintf(str, "%s\n", ha->name_string);
3433 break;
3434 default:
3435 rc = -ENOSYS;
3436 break;
3437 }
3438 return rc;
3439}
3440
Al Viro587a1f12011-07-23 23:11:19 -04003441static umode_t qla4xxx_ini_get_attr_visibility(void *data, int type)
Manish Rangankar2a991c22011-07-25 13:48:55 -05003442{
3443 int rc;
3444
3445 switch (type) {
3446 case ISCSI_BOOT_INI_INITIATOR_NAME:
3447 rc = S_IRUGO;
3448 break;
3449 default:
3450 rc = 0;
3451 break;
3452 }
3453 return rc;
3454}
3455
3456static ssize_t
3457qla4xxx_show_boot_tgt_info(struct ql4_boot_session_info *boot_sess, int type,
3458 char *buf)
3459{
3460 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0];
3461 char *str = buf;
3462 int rc;
3463
3464 switch (type) {
3465 case ISCSI_BOOT_TGT_NAME:
3466 rc = sprintf(buf, "%s\n", (char *)&boot_sess->target_name);
3467 break;
3468 case ISCSI_BOOT_TGT_IP_ADDR:
3469 if (boot_sess->conn_list[0].dest_ipaddr.ip_type == 0x1)
3470 rc = sprintf(buf, "%pI4\n",
3471 &boot_conn->dest_ipaddr.ip_address);
3472 else
3473 rc = sprintf(str, "%pI6\n",
3474 &boot_conn->dest_ipaddr.ip_address);
3475 break;
3476 case ISCSI_BOOT_TGT_PORT:
3477 rc = sprintf(str, "%d\n", boot_conn->dest_port);
3478 break;
3479 case ISCSI_BOOT_TGT_CHAP_NAME:
3480 rc = sprintf(str, "%.*s\n",
3481 boot_conn->chap.target_chap_name_length,
3482 (char *)&boot_conn->chap.target_chap_name);
3483 break;
3484 case ISCSI_BOOT_TGT_CHAP_SECRET:
3485 rc = sprintf(str, "%.*s\n",
3486 boot_conn->chap.target_secret_length,
3487 (char *)&boot_conn->chap.target_secret);
3488 break;
3489 case ISCSI_BOOT_TGT_REV_CHAP_NAME:
3490 rc = sprintf(str, "%.*s\n",
3491 boot_conn->chap.intr_chap_name_length,
3492 (char *)&boot_conn->chap.intr_chap_name);
3493 break;
3494 case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
3495 rc = sprintf(str, "%.*s\n",
3496 boot_conn->chap.intr_secret_length,
3497 (char *)&boot_conn->chap.intr_secret);
3498 break;
3499 case ISCSI_BOOT_TGT_FLAGS:
3500 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT);
3501 break;
3502 case ISCSI_BOOT_TGT_NIC_ASSOC:
3503 rc = sprintf(str, "0\n");
3504 break;
3505 default:
3506 rc = -ENOSYS;
3507 break;
3508 }
3509 return rc;
3510}
3511
3512static ssize_t qla4xxx_show_boot_tgt_pri_info(void *data, int type, char *buf)
3513{
3514 struct scsi_qla_host *ha = data;
3515 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_pri_sess);
3516
3517 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf);
3518}
3519
3520static ssize_t qla4xxx_show_boot_tgt_sec_info(void *data, int type, char *buf)
3521{
3522 struct scsi_qla_host *ha = data;
3523 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_sec_sess);
3524
3525 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf);
3526}
3527
Al Viro587a1f12011-07-23 23:11:19 -04003528static umode_t qla4xxx_tgt_get_attr_visibility(void *data, int type)
Manish Rangankar2a991c22011-07-25 13:48:55 -05003529{
3530 int rc;
3531
3532 switch (type) {
3533 case ISCSI_BOOT_TGT_NAME:
3534 case ISCSI_BOOT_TGT_IP_ADDR:
3535 case ISCSI_BOOT_TGT_PORT:
3536 case ISCSI_BOOT_TGT_CHAP_NAME:
3537 case ISCSI_BOOT_TGT_CHAP_SECRET:
3538 case ISCSI_BOOT_TGT_REV_CHAP_NAME:
3539 case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
3540 case ISCSI_BOOT_TGT_NIC_ASSOC:
3541 case ISCSI_BOOT_TGT_FLAGS:
3542 rc = S_IRUGO;
3543 break;
3544 default:
3545 rc = 0;
3546 break;
3547 }
3548 return rc;
3549}
3550
3551static void qla4xxx_boot_release(void *data)
3552{
3553 struct scsi_qla_host *ha = data;
3554
3555 scsi_host_put(ha->host);
3556}
3557
3558static int get_fw_boot_info(struct scsi_qla_host *ha, uint16_t ddb_index[])
3559{
3560 dma_addr_t buf_dma;
3561 uint32_t addr, pri_addr, sec_addr;
3562 uint32_t offset;
3563 uint16_t func_num;
3564 uint8_t val;
3565 uint8_t *buf = NULL;
3566 size_t size = 13 * sizeof(uint8_t);
3567 int ret = QLA_SUCCESS;
3568
3569 func_num = PCI_FUNC(ha->pdev->devfn);
3570
Manish Rangankar0d5b36b2011-10-07 16:55:51 -07003571 ql4_printk(KERN_INFO, ha, "%s: Get FW boot info for 0x%x func %d\n",
3572 __func__, ha->pdev->device, func_num);
Manish Rangankar2a991c22011-07-25 13:48:55 -05003573
Manish Rangankar0d5b36b2011-10-07 16:55:51 -07003574 if (is_qla40XX(ha)) {
Manish Rangankar2a991c22011-07-25 13:48:55 -05003575 if (func_num == 1) {
3576 addr = NVRAM_PORT0_BOOT_MODE;
3577 pri_addr = NVRAM_PORT0_BOOT_PRI_TGT;
3578 sec_addr = NVRAM_PORT0_BOOT_SEC_TGT;
3579 } else if (func_num == 3) {
3580 addr = NVRAM_PORT1_BOOT_MODE;
3581 pri_addr = NVRAM_PORT1_BOOT_PRI_TGT;
3582 sec_addr = NVRAM_PORT1_BOOT_SEC_TGT;
3583 } else {
3584 ret = QLA_ERROR;
3585 goto exit_boot_info;
3586 }
3587
3588 /* Check Boot Mode */
3589 val = rd_nvram_byte(ha, addr);
3590 if (!(val & 0x07)) {
Manish Rangankare8fb00e2012-02-13 18:30:43 +05303591 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Adapter boot "
3592 "options : 0x%x\n", __func__, val));
Manish Rangankar2a991c22011-07-25 13:48:55 -05003593 ret = QLA_ERROR;
3594 goto exit_boot_info;
3595 }
3596
3597 /* get primary valid target index */
3598 val = rd_nvram_byte(ha, pri_addr);
3599 if (val & BIT_7)
3600 ddb_index[0] = (val & 0x7f);
Manish Rangankar2a991c22011-07-25 13:48:55 -05003601
3602 /* get secondary valid target index */
3603 val = rd_nvram_byte(ha, sec_addr);
3604 if (val & BIT_7)
3605 ddb_index[1] = (val & 0x7f);
Manish Rangankar2a991c22011-07-25 13:48:55 -05003606
3607 } else if (is_qla8022(ha)) {
3608 buf = dma_alloc_coherent(&ha->pdev->dev, size,
3609 &buf_dma, GFP_KERNEL);
3610 if (!buf) {
3611 DEBUG2(ql4_printk(KERN_ERR, ha,
3612 "%s: Unable to allocate dma buffer\n",
3613 __func__));
3614 ret = QLA_ERROR;
3615 goto exit_boot_info;
3616 }
3617
3618 if (ha->port_num == 0)
3619 offset = BOOT_PARAM_OFFSET_PORT0;
3620 else if (ha->port_num == 1)
3621 offset = BOOT_PARAM_OFFSET_PORT1;
3622 else {
3623 ret = QLA_ERROR;
3624 goto exit_boot_info_free;
3625 }
3626 addr = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_iscsi_param * 4) +
3627 offset;
3628 if (qla4xxx_get_flash(ha, buf_dma, addr,
3629 13 * sizeof(uint8_t)) != QLA_SUCCESS) {
3630 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: Get Flash"
3631 "failed\n", ha->host_no, __func__));
3632 ret = QLA_ERROR;
3633 goto exit_boot_info_free;
3634 }
3635 /* Check Boot Mode */
3636 if (!(buf[1] & 0x07)) {
Manish Rangankare8fb00e2012-02-13 18:30:43 +05303637 DEBUG2(ql4_printk(KERN_INFO, ha, "Firmware boot options"
3638 " : 0x%x\n", buf[1]));
Manish Rangankar2a991c22011-07-25 13:48:55 -05003639 ret = QLA_ERROR;
3640 goto exit_boot_info_free;
3641 }
3642
3643 /* get primary valid target index */
3644 if (buf[2] & BIT_7)
3645 ddb_index[0] = buf[2] & 0x7f;
Manish Rangankar2a991c22011-07-25 13:48:55 -05003646
3647 /* get secondary valid target index */
3648 if (buf[11] & BIT_7)
3649 ddb_index[1] = buf[11] & 0x7f;
Manish Rangankar2a991c22011-07-25 13:48:55 -05003650 } else {
3651 ret = QLA_ERROR;
3652 goto exit_boot_info;
3653 }
3654
3655 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary target ID %d, Secondary"
3656 " target ID %d\n", __func__, ddb_index[0],
3657 ddb_index[1]));
3658
3659exit_boot_info_free:
3660 dma_free_coherent(&ha->pdev->dev, size, buf, buf_dma);
3661exit_boot_info:
Lalit Chandivade20e835b2012-02-13 18:30:42 +05303662 ha->pri_ddb_idx = ddb_index[0];
3663 ha->sec_ddb_idx = ddb_index[1];
Manish Rangankar2a991c22011-07-25 13:48:55 -05003664 return ret;
3665}
3666
Lalit Chandivade28deb452011-10-07 16:55:44 -07003667/**
3668 * qla4xxx_get_bidi_chap - Get a BIDI CHAP user and password
3669 * @ha: pointer to adapter structure
3670 * @username: CHAP username to be returned
3671 * @password: CHAP password to be returned
3672 *
3673 * If a boot entry has BIDI CHAP enabled then we need to set the BIDI CHAP
3674 * user and password in the sysfs entry in /sys/firmware/iscsi_boot#/.
3675 * So from the CHAP cache find the first BIDI CHAP entry and set it
3676 * to the boot record in sysfs.
3677 **/
3678static int qla4xxx_get_bidi_chap(struct scsi_qla_host *ha, char *username,
3679 char *password)
3680{
3681 int i, ret = -EINVAL;
3682 int max_chap_entries = 0;
3683 struct ql4_chap_table *chap_table;
3684
3685 if (is_qla8022(ha))
3686 max_chap_entries = (ha->hw.flt_chap_size / 2) /
3687 sizeof(struct ql4_chap_table);
3688 else
3689 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
3690
3691 if (!ha->chap_list) {
3692 ql4_printk(KERN_ERR, ha, "Do not have CHAP table cache\n");
3693 return ret;
3694 }
3695
3696 mutex_lock(&ha->chap_sem);
3697 for (i = 0; i < max_chap_entries; i++) {
3698 chap_table = (struct ql4_chap_table *)ha->chap_list + i;
3699 if (chap_table->cookie !=
3700 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) {
3701 continue;
3702 }
3703
3704 if (chap_table->flags & BIT_7) /* local */
3705 continue;
3706
3707 if (!(chap_table->flags & BIT_6)) /* Not BIDI */
3708 continue;
3709
3710 strncpy(password, chap_table->secret, QL4_CHAP_MAX_SECRET_LEN);
3711 strncpy(username, chap_table->name, QL4_CHAP_MAX_NAME_LEN);
3712 ret = 0;
3713 break;
3714 }
3715 mutex_unlock(&ha->chap_sem);
3716
3717 return ret;
3718}
3719
3720
Manish Rangankar2a991c22011-07-25 13:48:55 -05003721static int qla4xxx_get_boot_target(struct scsi_qla_host *ha,
3722 struct ql4_boot_session_info *boot_sess,
3723 uint16_t ddb_index)
3724{
3725 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0];
3726 struct dev_db_entry *fw_ddb_entry;
3727 dma_addr_t fw_ddb_entry_dma;
3728 uint16_t idx;
3729 uint16_t options;
3730 int ret = QLA_SUCCESS;
3731
3732 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3733 &fw_ddb_entry_dma, GFP_KERNEL);
3734 if (!fw_ddb_entry) {
3735 DEBUG2(ql4_printk(KERN_ERR, ha,
3736 "%s: Unable to allocate dma buffer.\n",
3737 __func__));
3738 ret = QLA_ERROR;
3739 return ret;
3740 }
3741
3742 if (qla4xxx_bootdb_by_index(ha, fw_ddb_entry,
3743 fw_ddb_entry_dma, ddb_index)) {
Manish Rangankare8fb00e2012-02-13 18:30:43 +05303744 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: No Flash DDB found at "
3745 "index [%d]\n", __func__, ddb_index));
Manish Rangankar2a991c22011-07-25 13:48:55 -05003746 ret = QLA_ERROR;
3747 goto exit_boot_target;
3748 }
3749
3750 /* Update target name and IP from DDB */
3751 memcpy(boot_sess->target_name, fw_ddb_entry->iscsi_name,
3752 min(sizeof(boot_sess->target_name),
3753 sizeof(fw_ddb_entry->iscsi_name)));
3754
3755 options = le16_to_cpu(fw_ddb_entry->options);
3756 if (options & DDB_OPT_IPV6_DEVICE) {
3757 memcpy(&boot_conn->dest_ipaddr.ip_address,
3758 &fw_ddb_entry->ip_addr[0], IPv6_ADDR_LEN);
3759 } else {
3760 boot_conn->dest_ipaddr.ip_type = 0x1;
3761 memcpy(&boot_conn->dest_ipaddr.ip_address,
3762 &fw_ddb_entry->ip_addr[0], IP_ADDR_LEN);
3763 }
3764
3765 boot_conn->dest_port = le16_to_cpu(fw_ddb_entry->port);
3766
3767 /* update chap information */
3768 idx = __le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
3769
3770 if (BIT_7 & le16_to_cpu(fw_ddb_entry->iscsi_options)) {
3771
3772 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting chap\n"));
3773
3774 ret = qla4xxx_get_chap(ha, (char *)&boot_conn->chap.
3775 target_chap_name,
3776 (char *)&boot_conn->chap.target_secret,
3777 idx);
3778 if (ret) {
3779 ql4_printk(KERN_ERR, ha, "Failed to set chap\n");
3780 ret = QLA_ERROR;
3781 goto exit_boot_target;
3782 }
3783
3784 boot_conn->chap.target_chap_name_length = QL4_CHAP_MAX_NAME_LEN;
3785 boot_conn->chap.target_secret_length = QL4_CHAP_MAX_SECRET_LEN;
3786 }
3787
3788 if (BIT_4 & le16_to_cpu(fw_ddb_entry->iscsi_options)) {
3789
3790 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting BIDI chap\n"));
3791
Lalit Chandivade28deb452011-10-07 16:55:44 -07003792 ret = qla4xxx_get_bidi_chap(ha,
3793 (char *)&boot_conn->chap.intr_chap_name,
3794 (char *)&boot_conn->chap.intr_secret);
3795
Manish Rangankar2a991c22011-07-25 13:48:55 -05003796 if (ret) {
3797 ql4_printk(KERN_ERR, ha, "Failed to set BIDI chap\n");
3798 ret = QLA_ERROR;
3799 goto exit_boot_target;
3800 }
3801
3802 boot_conn->chap.intr_chap_name_length = QL4_CHAP_MAX_NAME_LEN;
3803 boot_conn->chap.intr_secret_length = QL4_CHAP_MAX_SECRET_LEN;
3804 }
3805
3806exit_boot_target:
3807 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
3808 fw_ddb_entry, fw_ddb_entry_dma);
3809 return ret;
3810}
3811
3812static int qla4xxx_get_boot_info(struct scsi_qla_host *ha)
3813{
3814 uint16_t ddb_index[2];
Lalit Chandivade8de5b952011-10-07 16:55:43 -07003815 int ret = QLA_ERROR;
3816 int rval;
Manish Rangankar2a991c22011-07-25 13:48:55 -05003817
3818 memset(ddb_index, 0, sizeof(ddb_index));
Lalit Chandivade8de5b952011-10-07 16:55:43 -07003819 ddb_index[0] = 0xffff;
3820 ddb_index[1] = 0xffff;
Manish Rangankar2a991c22011-07-25 13:48:55 -05003821 ret = get_fw_boot_info(ha, ddb_index);
3822 if (ret != QLA_SUCCESS) {
Manish Rangankare8fb00e2012-02-13 18:30:43 +05303823 DEBUG2(ql4_printk(KERN_INFO, ha,
3824 "%s: No boot target configured.\n", __func__));
Manish Rangankar2a991c22011-07-25 13:48:55 -05003825 return ret;
3826 }
3827
Mike Christie13483732011-12-01 21:38:41 -06003828 if (ql4xdisablesysfsboot)
3829 return QLA_SUCCESS;
3830
Lalit Chandivade8de5b952011-10-07 16:55:43 -07003831 if (ddb_index[0] == 0xffff)
3832 goto sec_target;
3833
3834 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_pri_sess),
Manish Rangankar2a991c22011-07-25 13:48:55 -05003835 ddb_index[0]);
Lalit Chandivade8de5b952011-10-07 16:55:43 -07003836 if (rval != QLA_SUCCESS) {
Manish Rangankare8fb00e2012-02-13 18:30:43 +05303837 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary boot target not "
3838 "configured\n", __func__));
Lalit Chandivade8de5b952011-10-07 16:55:43 -07003839 } else
3840 ret = QLA_SUCCESS;
Manish Rangankar2a991c22011-07-25 13:48:55 -05003841
Lalit Chandivade8de5b952011-10-07 16:55:43 -07003842sec_target:
3843 if (ddb_index[1] == 0xffff)
3844 goto exit_get_boot_info;
3845
3846 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_sec_sess),
Manish Rangankar2a991c22011-07-25 13:48:55 -05003847 ddb_index[1]);
Lalit Chandivade8de5b952011-10-07 16:55:43 -07003848 if (rval != QLA_SUCCESS) {
Manish Rangankare8fb00e2012-02-13 18:30:43 +05303849 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Secondary boot target not"
3850 " configured\n", __func__));
Lalit Chandivade8de5b952011-10-07 16:55:43 -07003851 } else
3852 ret = QLA_SUCCESS;
3853
3854exit_get_boot_info:
Manish Rangankar2a991c22011-07-25 13:48:55 -05003855 return ret;
3856}
3857
3858static int qla4xxx_setup_boot_info(struct scsi_qla_host *ha)
3859{
3860 struct iscsi_boot_kobj *boot_kobj;
3861
3862 if (qla4xxx_get_boot_info(ha) != QLA_SUCCESS)
Mike Christie13483732011-12-01 21:38:41 -06003863 return QLA_ERROR;
3864
3865 if (ql4xdisablesysfsboot) {
3866 ql4_printk(KERN_INFO, ha,
3867 "%s: syfsboot disabled - driver will trigger login"
3868 "and publish session for discovery .\n", __func__);
3869 return QLA_SUCCESS;
3870 }
3871
Manish Rangankar2a991c22011-07-25 13:48:55 -05003872
3873 ha->boot_kset = iscsi_boot_create_host_kset(ha->host->host_no);
3874 if (!ha->boot_kset)
3875 goto kset_free;
3876
3877 if (!scsi_host_get(ha->host))
3878 goto kset_free;
3879 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 0, ha,
3880 qla4xxx_show_boot_tgt_pri_info,
3881 qla4xxx_tgt_get_attr_visibility,
3882 qla4xxx_boot_release);
3883 if (!boot_kobj)
3884 goto put_host;
3885
3886 if (!scsi_host_get(ha->host))
3887 goto kset_free;
3888 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 1, ha,
3889 qla4xxx_show_boot_tgt_sec_info,
3890 qla4xxx_tgt_get_attr_visibility,
3891 qla4xxx_boot_release);
3892 if (!boot_kobj)
3893 goto put_host;
3894
3895 if (!scsi_host_get(ha->host))
3896 goto kset_free;
3897 boot_kobj = iscsi_boot_create_initiator(ha->boot_kset, 0, ha,
3898 qla4xxx_show_boot_ini_info,
3899 qla4xxx_ini_get_attr_visibility,
3900 qla4xxx_boot_release);
3901 if (!boot_kobj)
3902 goto put_host;
3903
3904 if (!scsi_host_get(ha->host))
3905 goto kset_free;
3906 boot_kobj = iscsi_boot_create_ethernet(ha->boot_kset, 0, ha,
3907 qla4xxx_show_boot_eth_info,
3908 qla4xxx_eth_get_attr_visibility,
3909 qla4xxx_boot_release);
3910 if (!boot_kobj)
3911 goto put_host;
3912
Mike Christie13483732011-12-01 21:38:41 -06003913 return QLA_SUCCESS;
Manish Rangankar2a991c22011-07-25 13:48:55 -05003914
3915put_host:
3916 scsi_host_put(ha->host);
3917kset_free:
3918 iscsi_boot_destroy_kset(ha->boot_kset);
3919 return -ENOMEM;
3920}
3921
Lalit Chandivade45494152011-10-07 16:55:42 -07003922
3923/**
3924 * qla4xxx_create chap_list - Create CHAP list from FLASH
3925 * @ha: pointer to adapter structure
3926 *
3927 * Read flash and make a list of CHAP entries, during login when a CHAP entry
3928 * is received, it will be checked in this list. If entry exist then the CHAP
3929 * entry index is set in the DDB. If CHAP entry does not exist in this list
3930 * then a new entry is added in FLASH in CHAP table and the index obtained is
3931 * used in the DDB.
3932 **/
3933static void qla4xxx_create_chap_list(struct scsi_qla_host *ha)
3934{
3935 int rval = 0;
3936 uint8_t *chap_flash_data = NULL;
3937 uint32_t offset;
3938 dma_addr_t chap_dma;
3939 uint32_t chap_size = 0;
3940
3941 if (is_qla40XX(ha))
3942 chap_size = MAX_CHAP_ENTRIES_40XX *
3943 sizeof(struct ql4_chap_table);
3944 else /* Single region contains CHAP info for both
3945 * ports which is divided into half for each port.
3946 */
3947 chap_size = ha->hw.flt_chap_size / 2;
3948
3949 chap_flash_data = dma_alloc_coherent(&ha->pdev->dev, chap_size,
3950 &chap_dma, GFP_KERNEL);
3951 if (!chap_flash_data) {
3952 ql4_printk(KERN_ERR, ha, "No memory for chap_flash_data\n");
3953 return;
3954 }
3955 if (is_qla40XX(ha))
3956 offset = FLASH_CHAP_OFFSET;
3957 else {
3958 offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2);
3959 if (ha->port_num == 1)
3960 offset += chap_size;
3961 }
3962
3963 rval = qla4xxx_get_flash(ha, chap_dma, offset, chap_size);
3964 if (rval != QLA_SUCCESS)
3965 goto exit_chap_list;
3966
3967 if (ha->chap_list == NULL)
3968 ha->chap_list = vmalloc(chap_size);
3969 if (ha->chap_list == NULL) {
3970 ql4_printk(KERN_ERR, ha, "No memory for ha->chap_list\n");
3971 goto exit_chap_list;
3972 }
3973
3974 memcpy(ha->chap_list, chap_flash_data, chap_size);
3975
3976exit_chap_list:
3977 dma_free_coherent(&ha->pdev->dev, chap_size,
3978 chap_flash_data, chap_dma);
Lalit Chandivade45494152011-10-07 16:55:42 -07003979}
3980
Mike Christie13483732011-12-01 21:38:41 -06003981static void qla4xxx_get_param_ddb(struct ddb_entry *ddb_entry,
3982 struct ql4_tuple_ddb *tddb)
3983{
3984 struct scsi_qla_host *ha;
3985 struct iscsi_cls_session *cls_sess;
3986 struct iscsi_cls_conn *cls_conn;
3987 struct iscsi_session *sess;
3988 struct iscsi_conn *conn;
3989
3990 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
3991 ha = ddb_entry->ha;
3992 cls_sess = ddb_entry->sess;
3993 sess = cls_sess->dd_data;
3994 cls_conn = ddb_entry->conn;
3995 conn = cls_conn->dd_data;
3996
3997 tddb->tpgt = sess->tpgt;
3998 tddb->port = conn->persistent_port;
3999 strncpy(tddb->iscsi_name, sess->targetname, ISCSI_NAME_SIZE);
4000 strncpy(tddb->ip_addr, conn->persistent_address, DDB_IPADDR_LEN);
4001}
4002
4003static void qla4xxx_convert_param_ddb(struct dev_db_entry *fw_ddb_entry,
4004 struct ql4_tuple_ddb *tddb)
4005{
4006 uint16_t options = 0;
4007
4008 tddb->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
4009 memcpy(&tddb->iscsi_name[0], &fw_ddb_entry->iscsi_name[0],
4010 min(sizeof(tddb->iscsi_name), sizeof(fw_ddb_entry->iscsi_name)));
4011
4012 options = le16_to_cpu(fw_ddb_entry->options);
4013 if (options & DDB_OPT_IPV6_DEVICE)
4014 sprintf(tddb->ip_addr, "%pI6", fw_ddb_entry->ip_addr);
4015 else
4016 sprintf(tddb->ip_addr, "%pI4", fw_ddb_entry->ip_addr);
4017
4018 tddb->port = le16_to_cpu(fw_ddb_entry->port);
4019}
4020
4021static int qla4xxx_compare_tuple_ddb(struct scsi_qla_host *ha,
4022 struct ql4_tuple_ddb *old_tddb,
4023 struct ql4_tuple_ddb *new_tddb)
4024{
4025 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name))
4026 return QLA_ERROR;
4027
4028 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr))
4029 return QLA_ERROR;
4030
4031 if (old_tddb->port != new_tddb->port)
4032 return QLA_ERROR;
4033
4034 DEBUG2(ql4_printk(KERN_INFO, ha,
4035 "Match Found, fw[%d,%d,%s,%s], [%d,%d,%s,%s]",
4036 old_tddb->port, old_tddb->tpgt, old_tddb->ip_addr,
4037 old_tddb->iscsi_name, new_tddb->port, new_tddb->tpgt,
4038 new_tddb->ip_addr, new_tddb->iscsi_name));
4039
4040 return QLA_SUCCESS;
4041}
4042
4043static int qla4xxx_is_session_exists(struct scsi_qla_host *ha,
4044 struct dev_db_entry *fw_ddb_entry)
4045{
4046 struct ddb_entry *ddb_entry;
4047 struct ql4_tuple_ddb *fw_tddb = NULL;
4048 struct ql4_tuple_ddb *tmp_tddb = NULL;
4049 int idx;
4050 int ret = QLA_ERROR;
4051
4052 fw_tddb = vzalloc(sizeof(*fw_tddb));
4053 if (!fw_tddb) {
4054 DEBUG2(ql4_printk(KERN_WARNING, ha,
4055 "Memory Allocation failed.\n"));
4056 ret = QLA_SUCCESS;
4057 goto exit_check;
4058 }
4059
4060 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
4061 if (!tmp_tddb) {
4062 DEBUG2(ql4_printk(KERN_WARNING, ha,
4063 "Memory Allocation failed.\n"));
4064 ret = QLA_SUCCESS;
4065 goto exit_check;
4066 }
4067
4068 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb);
4069
4070 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
4071 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
4072 if (ddb_entry == NULL)
4073 continue;
4074
4075 qla4xxx_get_param_ddb(ddb_entry, tmp_tddb);
4076 if (!qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb)) {
4077 ret = QLA_SUCCESS; /* found */
4078 goto exit_check;
4079 }
4080 }
4081
4082exit_check:
4083 if (fw_tddb)
4084 vfree(fw_tddb);
4085 if (tmp_tddb)
4086 vfree(tmp_tddb);
4087 return ret;
4088}
4089
4090static int qla4xxx_is_flash_ddb_exists(struct scsi_qla_host *ha,
4091 struct list_head *list_nt,
4092 struct dev_db_entry *fw_ddb_entry)
4093{
4094 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp;
4095 struct ql4_tuple_ddb *fw_tddb = NULL;
4096 struct ql4_tuple_ddb *tmp_tddb = NULL;
4097 int ret = QLA_ERROR;
4098
4099 fw_tddb = vzalloc(sizeof(*fw_tddb));
4100 if (!fw_tddb) {
4101 DEBUG2(ql4_printk(KERN_WARNING, ha,
4102 "Memory Allocation failed.\n"));
4103 ret = QLA_SUCCESS;
4104 goto exit_check;
4105 }
4106
4107 tmp_tddb = vzalloc(sizeof(*tmp_tddb));
4108 if (!tmp_tddb) {
4109 DEBUG2(ql4_printk(KERN_WARNING, ha,
4110 "Memory Allocation failed.\n"));
4111 ret = QLA_SUCCESS;
4112 goto exit_check;
4113 }
4114
4115 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb);
4116
4117 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
4118 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb);
4119 if (!qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb)) {
4120 ret = QLA_SUCCESS; /* found */
4121 goto exit_check;
4122 }
4123 }
4124
4125exit_check:
4126 if (fw_tddb)
4127 vfree(fw_tddb);
4128 if (tmp_tddb)
4129 vfree(tmp_tddb);
4130 return ret;
4131}
4132
Lalit Chandivade4a4bc2e2011-12-16 01:58:55 -08004133static void qla4xxx_free_ddb_list(struct list_head *list_ddb)
Mike Christie13483732011-12-01 21:38:41 -06004134{
Lalit Chandivade4a4bc2e2011-12-16 01:58:55 -08004135 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
Mike Christie13483732011-12-01 21:38:41 -06004136
Lalit Chandivade4a4bc2e2011-12-16 01:58:55 -08004137 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
4138 list_del_init(&ddb_idx->list);
4139 vfree(ddb_idx);
Mike Christie13483732011-12-01 21:38:41 -06004140 }
Mike Christie13483732011-12-01 21:38:41 -06004141}
4142
4143static struct iscsi_endpoint *qla4xxx_get_ep_fwdb(struct scsi_qla_host *ha,
4144 struct dev_db_entry *fw_ddb_entry)
4145{
4146 struct iscsi_endpoint *ep;
4147 struct sockaddr_in *addr;
4148 struct sockaddr_in6 *addr6;
4149 struct sockaddr *dst_addr;
4150 char *ip;
4151
4152 /* TODO: need to destroy on unload iscsi_endpoint*/
4153 dst_addr = vmalloc(sizeof(*dst_addr));
4154 if (!dst_addr)
4155 return NULL;
4156
4157 if (fw_ddb_entry->options & DDB_OPT_IPV6_DEVICE) {
4158 dst_addr->sa_family = AF_INET6;
4159 addr6 = (struct sockaddr_in6 *)dst_addr;
4160 ip = (char *)&addr6->sin6_addr;
4161 memcpy(ip, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN);
4162 addr6->sin6_port = htons(le16_to_cpu(fw_ddb_entry->port));
4163
4164 } else {
4165 dst_addr->sa_family = AF_INET;
4166 addr = (struct sockaddr_in *)dst_addr;
4167 ip = (char *)&addr->sin_addr;
4168 memcpy(ip, fw_ddb_entry->ip_addr, IP_ADDR_LEN);
4169 addr->sin_port = htons(le16_to_cpu(fw_ddb_entry->port));
4170 }
4171
4172 ep = qla4xxx_ep_connect(ha->host, dst_addr, 0);
4173 vfree(dst_addr);
4174 return ep;
4175}
4176
4177static int qla4xxx_verify_boot_idx(struct scsi_qla_host *ha, uint16_t idx)
4178{
4179 if (ql4xdisablesysfsboot)
4180 return QLA_SUCCESS;
4181 if (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx)
4182 return QLA_ERROR;
4183 return QLA_SUCCESS;
4184}
4185
4186static void qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha,
4187 struct ddb_entry *ddb_entry)
4188{
Nilesh Javalic28eaac2011-12-18 21:40:44 -08004189 uint16_t def_timeout;
4190
Mike Christie13483732011-12-01 21:38:41 -06004191 ddb_entry->ddb_type = FLASH_DDB;
4192 ddb_entry->fw_ddb_index = INVALID_ENTRY;
4193 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE;
4194 ddb_entry->ha = ha;
4195 ddb_entry->unblock_sess = qla4xxx_unblock_flash_ddb;
4196 ddb_entry->ddb_change = qla4xxx_flash_ddb_change;
4197
4198 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY);
4199 atomic_set(&ddb_entry->relogin_timer, 0);
4200 atomic_set(&ddb_entry->relogin_retry_count, 0);
Nilesh Javalic28eaac2011-12-18 21:40:44 -08004201 def_timeout = le16_to_cpu(ddb_entry->fw_ddb_entry.def_timeout);
Mike Christie13483732011-12-01 21:38:41 -06004202 ddb_entry->default_relogin_timeout =
Nilesh Javalic28eaac2011-12-18 21:40:44 -08004203 (def_timeout > LOGIN_TOV) && (def_timeout < LOGIN_TOV * 10) ?
4204 def_timeout : LOGIN_TOV;
Mike Christie13483732011-12-01 21:38:41 -06004205 ddb_entry->default_time2wait =
4206 le16_to_cpu(ddb_entry->fw_ddb_entry.iscsi_def_time2wait);
4207}
4208
4209static void qla4xxx_wait_for_ip_configuration(struct scsi_qla_host *ha)
4210{
4211 uint32_t idx = 0;
4212 uint32_t ip_idx[IP_ADDR_COUNT] = {0, 1, 2, 3}; /* 4 IP interfaces */
4213 uint32_t sts[MBOX_REG_COUNT];
4214 uint32_t ip_state;
4215 unsigned long wtime;
4216 int ret;
4217
4218 wtime = jiffies + (HZ * IP_CONFIG_TOV);
4219 do {
4220 for (idx = 0; idx < IP_ADDR_COUNT; idx++) {
4221 if (ip_idx[idx] == -1)
4222 continue;
4223
4224 ret = qla4xxx_get_ip_state(ha, 0, ip_idx[idx], sts);
4225
4226 if (ret == QLA_ERROR) {
4227 ip_idx[idx] = -1;
4228 continue;
4229 }
4230
4231 ip_state = (sts[1] & IP_STATE_MASK) >> IP_STATE_SHIFT;
4232
4233 DEBUG2(ql4_printk(KERN_INFO, ha,
4234 "Waiting for IP state for idx = %d, state = 0x%x\n",
4235 ip_idx[idx], ip_state));
4236 if (ip_state == IP_ADDRSTATE_UNCONFIGURED ||
4237 ip_state == IP_ADDRSTATE_INVALID ||
4238 ip_state == IP_ADDRSTATE_PREFERRED ||
4239 ip_state == IP_ADDRSTATE_DEPRICATED ||
4240 ip_state == IP_ADDRSTATE_DISABLING)
4241 ip_idx[idx] = -1;
Mike Christie13483732011-12-01 21:38:41 -06004242 }
4243
4244 /* Break if all IP states checked */
4245 if ((ip_idx[0] == -1) &&
4246 (ip_idx[1] == -1) &&
4247 (ip_idx[2] == -1) &&
4248 (ip_idx[3] == -1))
4249 break;
4250 schedule_timeout_uninterruptible(HZ);
4251 } while (time_after(wtime, jiffies));
4252}
4253
Lalit Chandivade4a4bc2e2011-12-16 01:58:55 -08004254static void qla4xxx_build_st_list(struct scsi_qla_host *ha,
4255 struct list_head *list_st)
Mike Christie13483732011-12-01 21:38:41 -06004256{
Lalit Chandivade4a4bc2e2011-12-16 01:58:55 -08004257 struct qla_ddb_index *st_ddb_idx;
Mike Christie13483732011-12-01 21:38:41 -06004258 int max_ddbs;
Lalit Chandivade4a4bc2e2011-12-16 01:58:55 -08004259 int fw_idx_size;
4260 struct dev_db_entry *fw_ddb_entry;
4261 dma_addr_t fw_ddb_dma;
Mike Christie13483732011-12-01 21:38:41 -06004262 int ret;
4263 uint32_t idx = 0, next_idx = 0;
4264 uint32_t state = 0, conn_err = 0;
Lalit Chandivade4a4bc2e2011-12-16 01:58:55 -08004265 uint16_t conn_id = 0;
Mike Christie13483732011-12-01 21:38:41 -06004266
4267 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
4268 &fw_ddb_dma);
4269 if (fw_ddb_entry == NULL) {
4270 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
Lalit Chandivade4a4bc2e2011-12-16 01:58:55 -08004271 goto exit_st_list;
Mike Christie13483732011-12-01 21:38:41 -06004272 }
4273
Lalit Chandivade4a4bc2e2011-12-16 01:58:55 -08004274 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
4275 MAX_DEV_DB_ENTRIES;
Mike Christie13483732011-12-01 21:38:41 -06004276 fw_idx_size = sizeof(struct qla_ddb_index);
4277
4278 for (idx = 0; idx < max_ddbs; idx = next_idx) {
Lalit Chandivade4a4bc2e2011-12-16 01:58:55 -08004279 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
4280 NULL, &next_idx, &state,
4281 &conn_err, NULL, &conn_id);
Mike Christie13483732011-12-01 21:38:41 -06004282 if (ret == QLA_ERROR)
4283 break;
4284
Lalit Chandivade981c9822012-02-13 18:30:41 +05304285 /* Ignore DDB if invalid state (unassigned) */
4286 if (state == DDB_DS_UNASSIGNED)
4287 goto continue_next_st;
4288
Mike Christie13483732011-12-01 21:38:41 -06004289 /* Check if ST, add to the list_st */
4290 if (strlen((char *) fw_ddb_entry->iscsi_name) != 0)
4291 goto continue_next_st;
4292
4293 st_ddb_idx = vzalloc(fw_idx_size);
4294 if (!st_ddb_idx)
4295 break;
4296
4297 st_ddb_idx->fw_ddb_idx = idx;
4298
Lalit Chandivade4a4bc2e2011-12-16 01:58:55 -08004299 list_add_tail(&st_ddb_idx->list, list_st);
Mike Christie13483732011-12-01 21:38:41 -06004300continue_next_st:
4301 if (next_idx == 0)
4302 break;
4303 }
4304
Lalit Chandivade4a4bc2e2011-12-16 01:58:55 -08004305exit_st_list:
4306 if (fw_ddb_entry)
4307 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
4308}
4309
4310/**
4311 * qla4xxx_remove_failed_ddb - Remove inactive or failed ddb from list
4312 * @ha: pointer to adapter structure
4313 * @list_ddb: List from which failed ddb to be removed
4314 *
4315 * Iterate over the list of DDBs and find and remove DDBs that are either in
4316 * no connection active state or failed state
4317 **/
4318static void qla4xxx_remove_failed_ddb(struct scsi_qla_host *ha,
4319 struct list_head *list_ddb)
4320{
4321 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
4322 uint32_t next_idx = 0;
4323 uint32_t state = 0, conn_err = 0;
4324 int ret;
4325
4326 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
4327 ret = qla4xxx_get_fwddb_entry(ha, ddb_idx->fw_ddb_idx,
4328 NULL, 0, NULL, &next_idx, &state,
4329 &conn_err, NULL, NULL);
4330 if (ret == QLA_ERROR)
4331 continue;
4332
4333 if (state == DDB_DS_NO_CONNECTION_ACTIVE ||
4334 state == DDB_DS_SESSION_FAILED) {
4335 list_del_init(&ddb_idx->list);
4336 vfree(ddb_idx);
4337 }
4338 }
4339}
4340
4341static int qla4xxx_sess_conn_setup(struct scsi_qla_host *ha,
4342 struct dev_db_entry *fw_ddb_entry,
4343 int is_reset)
4344{
4345 struct iscsi_cls_session *cls_sess;
4346 struct iscsi_session *sess;
4347 struct iscsi_cls_conn *cls_conn;
4348 struct iscsi_endpoint *ep;
4349 uint16_t cmds_max = 32;
4350 uint16_t conn_id = 0;
4351 uint32_t initial_cmdsn = 0;
4352 int ret = QLA_SUCCESS;
4353
4354 struct ddb_entry *ddb_entry = NULL;
4355
4356 /* Create session object, with INVALID_ENTRY,
4357 * the targer_id would get set when we issue the login
4358 */
4359 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, ha->host,
4360 cmds_max, sizeof(struct ddb_entry),
4361 sizeof(struct ql4_task_data),
4362 initial_cmdsn, INVALID_ENTRY);
4363 if (!cls_sess) {
4364 ret = QLA_ERROR;
4365 goto exit_setup;
4366 }
4367
4368 /*
4369 * so calling module_put function to decrement the
4370 * reference count.
4371 **/
4372 module_put(qla4xxx_iscsi_transport.owner);
4373 sess = cls_sess->dd_data;
4374 ddb_entry = sess->dd_data;
4375 ddb_entry->sess = cls_sess;
4376
4377 cls_sess->recovery_tmo = ql4xsess_recovery_tmo;
4378 memcpy(&ddb_entry->fw_ddb_entry, fw_ddb_entry,
4379 sizeof(struct dev_db_entry));
4380
4381 qla4xxx_setup_flash_ddb_entry(ha, ddb_entry);
4382
4383 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), conn_id);
4384
4385 if (!cls_conn) {
4386 ret = QLA_ERROR;
4387 goto exit_setup;
4388 }
4389
4390 ddb_entry->conn = cls_conn;
4391
4392 /* Setup ep, for displaying attributes in sysfs */
4393 ep = qla4xxx_get_ep_fwdb(ha, fw_ddb_entry);
4394 if (ep) {
4395 ep->conn = cls_conn;
4396 cls_conn->ep = ep;
4397 } else {
4398 DEBUG2(ql4_printk(KERN_ERR, ha, "Unable to get ep\n"));
4399 ret = QLA_ERROR;
4400 goto exit_setup;
4401 }
4402
4403 /* Update sess/conn params */
4404 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn);
4405
4406 if (is_reset == RESET_ADAPTER) {
4407 iscsi_block_session(cls_sess);
4408 /* Use the relogin path to discover new devices
4409 * by short-circuting the logic of setting
4410 * timer to relogin - instead set the flags
4411 * to initiate login right away.
4412 */
4413 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
4414 set_bit(DF_RELOGIN, &ddb_entry->flags);
4415 }
4416
4417exit_setup:
4418 return ret;
4419}
4420
4421static void qla4xxx_build_nt_list(struct scsi_qla_host *ha,
4422 struct list_head *list_nt, int is_reset)
4423{
4424 struct dev_db_entry *fw_ddb_entry;
4425 dma_addr_t fw_ddb_dma;
4426 int max_ddbs;
4427 int fw_idx_size;
4428 int ret;
4429 uint32_t idx = 0, next_idx = 0;
4430 uint32_t state = 0, conn_err = 0;
4431 uint16_t conn_id = 0;
4432 struct qla_ddb_index *nt_ddb_idx;
4433
4434 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
4435 &fw_ddb_dma);
4436 if (fw_ddb_entry == NULL) {
4437 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
4438 goto exit_nt_list;
4439 }
4440 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
4441 MAX_DEV_DB_ENTRIES;
4442 fw_idx_size = sizeof(struct qla_ddb_index);
4443
4444 for (idx = 0; idx < max_ddbs; idx = next_idx) {
4445 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma,
4446 NULL, &next_idx, &state,
4447 &conn_err, NULL, &conn_id);
4448 if (ret == QLA_ERROR)
4449 break;
4450
4451 if (qla4xxx_verify_boot_idx(ha, idx) != QLA_SUCCESS)
4452 goto continue_next_nt;
4453
4454 /* Check if NT, then add to list it */
4455 if (strlen((char *) fw_ddb_entry->iscsi_name) == 0)
4456 goto continue_next_nt;
4457
4458 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE ||
4459 state == DDB_DS_SESSION_FAILED))
4460 goto continue_next_nt;
4461
4462 DEBUG2(ql4_printk(KERN_INFO, ha,
4463 "Adding DDB to session = 0x%x\n", idx));
4464 if (is_reset == INIT_ADAPTER) {
4465 nt_ddb_idx = vmalloc(fw_idx_size);
4466 if (!nt_ddb_idx)
4467 break;
4468
4469 nt_ddb_idx->fw_ddb_idx = idx;
4470
4471 memcpy(&nt_ddb_idx->fw_ddb, fw_ddb_entry,
4472 sizeof(struct dev_db_entry));
4473
4474 if (qla4xxx_is_flash_ddb_exists(ha, list_nt,
4475 fw_ddb_entry) == QLA_SUCCESS) {
4476 vfree(nt_ddb_idx);
4477 goto continue_next_nt;
4478 }
4479 list_add_tail(&nt_ddb_idx->list, list_nt);
4480 } else if (is_reset == RESET_ADAPTER) {
4481 if (qla4xxx_is_session_exists(ha, fw_ddb_entry) ==
4482 QLA_SUCCESS)
4483 goto continue_next_nt;
4484 }
4485
4486 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, is_reset);
4487 if (ret == QLA_ERROR)
4488 goto exit_nt_list;
4489
4490continue_next_nt:
4491 if (next_idx == 0)
4492 break;
4493 }
4494
4495exit_nt_list:
4496 if (fw_ddb_entry)
4497 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
4498}
4499
4500/**
4501 * qla4xxx_build_ddb_list - Build ddb list and setup sessions
4502 * @ha: pointer to adapter structure
4503 * @is_reset: Is this init path or reset path
4504 *
4505 * Create a list of sendtargets (st) from firmware DDBs, issue send targets
4506 * using connection open, then create the list of normal targets (nt)
4507 * from firmware DDBs. Based on the list of nt setup session and connection
4508 * objects.
4509 **/
4510void qla4xxx_build_ddb_list(struct scsi_qla_host *ha, int is_reset)
4511{
4512 uint16_t tmo = 0;
4513 struct list_head list_st, list_nt;
4514 struct qla_ddb_index *st_ddb_idx, *st_ddb_idx_tmp;
4515 unsigned long wtime;
4516
4517 if (!test_bit(AF_LINK_UP, &ha->flags)) {
4518 set_bit(AF_BUILD_DDB_LIST, &ha->flags);
4519 ha->is_reset = is_reset;
4520 return;
4521 }
4522
4523 INIT_LIST_HEAD(&list_st);
4524 INIT_LIST_HEAD(&list_nt);
4525
4526 qla4xxx_build_st_list(ha, &list_st);
4527
Mike Christie13483732011-12-01 21:38:41 -06004528 /* Before issuing conn open mbox, ensure all IPs states are configured
4529 * Note, conn open fails if IPs are not configured
4530 */
4531 qla4xxx_wait_for_ip_configuration(ha);
4532
4533 /* Go thru the STs and fire the sendtargets by issuing conn open mbx */
4534 list_for_each_entry_safe(st_ddb_idx, st_ddb_idx_tmp, &list_st, list) {
4535 qla4xxx_conn_open(ha, st_ddb_idx->fw_ddb_idx);
4536 }
4537
4538 /* Wait to ensure all sendtargets are done for min 12 sec wait */
Nilesh Javalic28eaac2011-12-18 21:40:44 -08004539 tmo = ((ha->def_timeout > LOGIN_TOV) &&
4540 (ha->def_timeout < LOGIN_TOV * 10) ?
4541 ha->def_timeout : LOGIN_TOV);
4542
Mike Christie13483732011-12-01 21:38:41 -06004543 DEBUG2(ql4_printk(KERN_INFO, ha,
4544 "Default time to wait for build ddb %d\n", tmo));
4545
4546 wtime = jiffies + (HZ * tmo);
4547 do {
Nilesh Javalif1f2e602011-12-16 01:58:57 -08004548 if (list_empty(&list_st))
4549 break;
4550
Lalit Chandivade4a4bc2e2011-12-16 01:58:55 -08004551 qla4xxx_remove_failed_ddb(ha, &list_st);
Mike Christie13483732011-12-01 21:38:41 -06004552 schedule_timeout_uninterruptible(HZ / 10);
4553 } while (time_after(wtime, jiffies));
4554
4555 /* Free up the sendtargets list */
Lalit Chandivade4a4bc2e2011-12-16 01:58:55 -08004556 qla4xxx_free_ddb_list(&list_st);
Mike Christie13483732011-12-01 21:38:41 -06004557
Lalit Chandivade4a4bc2e2011-12-16 01:58:55 -08004558 qla4xxx_build_nt_list(ha, &list_nt, is_reset);
Mike Christie13483732011-12-01 21:38:41 -06004559
Lalit Chandivade4a4bc2e2011-12-16 01:58:55 -08004560 qla4xxx_free_ddb_list(&list_nt);
Mike Christie13483732011-12-01 21:38:41 -06004561
4562 qla4xxx_free_ddb_index(ha);
4563}
4564
David Somayajuluafaf5a22006-09-19 10:28:00 -07004565/**
4566 * qla4xxx_probe_adapter - callback function to probe HBA
4567 * @pdev: pointer to pci_dev structure
4568 * @pci_device_id: pointer to pci_device entry
4569 *
4570 * This routine will probe for Qlogic 4xxx iSCSI host adapters.
4571 * It returns zero if successful. It also initializes all data necessary for
4572 * the driver.
4573 **/
4574static int __devinit qla4xxx_probe_adapter(struct pci_dev *pdev,
4575 const struct pci_device_id *ent)
4576{
4577 int ret = -ENODEV, status;
4578 struct Scsi_Host *host;
4579 struct scsi_qla_host *ha;
David Somayajuluafaf5a22006-09-19 10:28:00 -07004580 uint8_t init_retry_count = 0;
4581 char buf[34];
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05304582 struct qla4_8xxx_legacy_intr_set *nx_legacy_intr;
Prasanna Mumbaif9880e72011-03-21 03:34:26 -07004583 uint32_t dev_state;
David Somayajuluafaf5a22006-09-19 10:28:00 -07004584
4585 if (pci_enable_device(pdev))
4586 return -1;
4587
Manish Rangankarb3a271a2011-07-25 13:48:53 -05004588 host = iscsi_host_alloc(&qla4xxx_driver_template, sizeof(*ha), 0);
David Somayajuluafaf5a22006-09-19 10:28:00 -07004589 if (host == NULL) {
4590 printk(KERN_WARNING
4591 "qla4xxx: Couldn't allocate host from scsi layer!\n");
4592 goto probe_disable_device;
4593 }
4594
4595 /* Clear our data area */
Manish Rangankarb3a271a2011-07-25 13:48:53 -05004596 ha = to_qla_host(host);
David Somayajuluafaf5a22006-09-19 10:28:00 -07004597 memset(ha, 0, sizeof(*ha));
4598
4599 /* Save the information from PCI BIOS. */
4600 ha->pdev = pdev;
4601 ha->host = host;
4602 ha->host_no = host->host_no;
4603
Lalit Chandivade2232be02010-07-30 14:38:47 +05304604 pci_enable_pcie_error_reporting(pdev);
4605
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05304606 /* Setup Runtime configurable options */
4607 if (is_qla8022(ha)) {
4608 ha->isp_ops = &qla4_8xxx_isp_ops;
4609 rwlock_init(&ha->hw_lock);
4610 ha->qdr_sn_window = -1;
4611 ha->ddr_mn_window = -1;
4612 ha->curr_window = 255;
4613 ha->func_num = PCI_FUNC(ha->pdev->devfn);
4614 nx_legacy_intr = &legacy_intr[ha->func_num];
4615 ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit;
4616 ha->nx_legacy_intr.tgt_status_reg =
4617 nx_legacy_intr->tgt_status_reg;
4618 ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg;
4619 ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg;
4620 } else {
4621 ha->isp_ops = &qla4xxx_isp_ops;
4622 }
4623
Lalit Chandivade2232be02010-07-30 14:38:47 +05304624 /* Set EEH reset type to fundamental if required by hba */
4625 if (is_qla8022(ha))
4626 pdev->needs_freset = 1;
4627
David Somayajuluafaf5a22006-09-19 10:28:00 -07004628 /* Configure PCI I/O space. */
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05304629 ret = ha->isp_ops->iospace_config(ha);
David Somayajuluafaf5a22006-09-19 10:28:00 -07004630 if (ret)
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05304631 goto probe_failed_ioconfig;
David Somayajuluafaf5a22006-09-19 10:28:00 -07004632
Vikas Chaudharyc2660df2010-07-10 14:51:02 +05304633 ql4_printk(KERN_INFO, ha, "Found an ISP%04x, irq %d, iobase 0x%p\n",
David Somayajuluafaf5a22006-09-19 10:28:00 -07004634 pdev->device, pdev->irq, ha->reg);
4635
4636 qla4xxx_config_dma_addressing(ha);
4637
4638 /* Initialize lists and spinlocks. */
David Somayajuluafaf5a22006-09-19 10:28:00 -07004639 INIT_LIST_HEAD(&ha->free_srb_q);
4640
4641 mutex_init(&ha->mbox_sem);
Lalit Chandivade45494152011-10-07 16:55:42 -07004642 mutex_init(&ha->chap_sem);
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05304643 init_completion(&ha->mbx_intr_comp);
Vikas Chaudhary95d31262011-08-12 02:51:29 -07004644 init_completion(&ha->disable_acb_comp);
David Somayajuluafaf5a22006-09-19 10:28:00 -07004645
4646 spin_lock_init(&ha->hardware_lock);
David Somayajuluafaf5a22006-09-19 10:28:00 -07004647
Vikas Chaudharyff884432011-08-29 23:43:02 +05304648 /* Initialize work list */
4649 INIT_LIST_HEAD(&ha->work_list);
4650
David Somayajuluafaf5a22006-09-19 10:28:00 -07004651 /* Allocate dma buffers */
4652 if (qla4xxx_mem_alloc(ha)) {
Vikas Chaudharyc2660df2010-07-10 14:51:02 +05304653 ql4_printk(KERN_WARNING, ha,
4654 "[ERROR] Failed to allocate memory for adapter\n");
David Somayajuluafaf5a22006-09-19 10:28:00 -07004655
4656 ret = -ENOMEM;
4657 goto probe_failed;
4658 }
4659
Manish Rangankarb3a271a2011-07-25 13:48:53 -05004660 host->cmd_per_lun = 3;
4661 host->max_channel = 0;
4662 host->max_lun = MAX_LUNS - 1;
4663 host->max_id = MAX_TARGETS;
4664 host->max_cmd_len = IOCB_MAX_CDB_LEN;
4665 host->can_queue = MAX_SRBS ;
4666 host->transportt = qla4xxx_scsi_transport;
4667
4668 ret = scsi_init_shared_tag_map(host, MAX_SRBS);
4669 if (ret) {
4670 ql4_printk(KERN_WARNING, ha,
4671 "%s: scsi_init_shared_tag_map failed\n", __func__);
4672 goto probe_failed;
4673 }
4674
4675 pci_set_drvdata(pdev, ha);
4676
4677 ret = scsi_add_host(host, &pdev->dev);
4678 if (ret)
4679 goto probe_failed;
4680
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05304681 if (is_qla8022(ha))
4682 (void) qla4_8xxx_get_flash_info(ha);
4683
David Somayajuluafaf5a22006-09-19 10:28:00 -07004684 /*
4685 * Initialize the Host adapter request/response queues and
4686 * firmware
4687 * NOTE: interrupts enabled upon successful completion
4688 */
Mike Christie13483732011-12-01 21:38:41 -06004689 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER);
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05304690 while ((!test_bit(AF_ONLINE, &ha->flags)) &&
4691 init_retry_count++ < MAX_INIT_RETRIES) {
Prasanna Mumbaif9880e72011-03-21 03:34:26 -07004692
4693 if (is_qla8022(ha)) {
4694 qla4_8xxx_idc_lock(ha);
4695 dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
4696 qla4_8xxx_idc_unlock(ha);
4697 if (dev_state == QLA82XX_DEV_FAILED) {
4698 ql4_printk(KERN_WARNING, ha, "%s: don't retry "
4699 "initialize adapter. H/W is in failed state\n",
4700 __func__);
4701 break;
4702 }
4703 }
David Somayajuluafaf5a22006-09-19 10:28:00 -07004704 DEBUG2(printk("scsi: %s: retrying adapter initialization "
4705 "(%d)\n", __func__, init_retry_count));
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05304706
4707 if (ha->isp_ops->reset_chip(ha) == QLA_ERROR)
4708 continue;
4709
Mike Christie13483732011-12-01 21:38:41 -06004710 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER);
David Somayajuluafaf5a22006-09-19 10:28:00 -07004711 }
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05304712
4713 if (!test_bit(AF_ONLINE, &ha->flags)) {
Vikas Chaudharyc2660df2010-07-10 14:51:02 +05304714 ql4_printk(KERN_WARNING, ha, "Failed to initialize adapter\n");
David Somayajuluafaf5a22006-09-19 10:28:00 -07004715
Lalit Chandivadefe998522010-12-02 22:12:36 -08004716 if (is_qla8022(ha) && ql4xdontresethba) {
4717 /* Put the device in failed state. */
4718 DEBUG2(printk(KERN_ERR "HW STATE: FAILED\n"));
4719 qla4_8xxx_idc_lock(ha);
4720 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
4721 QLA82XX_DEV_FAILED);
4722 qla4_8xxx_idc_unlock(ha);
4723 }
David Somayajuluafaf5a22006-09-19 10:28:00 -07004724 ret = -ENODEV;
Manish Rangankarb3a271a2011-07-25 13:48:53 -05004725 goto remove_host;
David Somayajuluafaf5a22006-09-19 10:28:00 -07004726 }
4727
David Somayajuluafaf5a22006-09-19 10:28:00 -07004728 /* Startup the kernel thread for this host adapter. */
4729 DEBUG2(printk("scsi: %s: Starting kernel thread for "
4730 "qla4xxx_dpc\n", __func__));
4731 sprintf(buf, "qla4xxx_%lu_dpc", ha->host_no);
4732 ha->dpc_thread = create_singlethread_workqueue(buf);
4733 if (!ha->dpc_thread) {
Vikas Chaudharyc2660df2010-07-10 14:51:02 +05304734 ql4_printk(KERN_WARNING, ha, "Unable to start DPC thread!\n");
David Somayajuluafaf5a22006-09-19 10:28:00 -07004735 ret = -ENODEV;
Manish Rangankarb3a271a2011-07-25 13:48:53 -05004736 goto remove_host;
David Somayajuluafaf5a22006-09-19 10:28:00 -07004737 }
David Howellsc4028952006-11-22 14:57:56 +00004738 INIT_WORK(&ha->dpc_work, qla4xxx_do_dpc);
David Somayajuluafaf5a22006-09-19 10:28:00 -07004739
Manish Rangankarb3a271a2011-07-25 13:48:53 -05004740 sprintf(buf, "qla4xxx_%lu_task", ha->host_no);
4741 ha->task_wq = alloc_workqueue(buf, WQ_MEM_RECLAIM, 1);
4742 if (!ha->task_wq) {
4743 ql4_printk(KERN_WARNING, ha, "Unable to start task thread!\n");
4744 ret = -ENODEV;
4745 goto remove_host;
4746 }
4747
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05304748 /* For ISP-82XX, request_irqs is called in qla4_8xxx_load_risc
4749 * (which is called indirectly by qla4xxx_initialize_adapter),
4750 * so that irqs will be registered after crbinit but before
4751 * mbx_intr_enable.
4752 */
4753 if (!is_qla8022(ha)) {
4754 ret = qla4xxx_request_irqs(ha);
4755 if (ret) {
4756 ql4_printk(KERN_WARNING, ha, "Failed to reserve "
4757 "interrupt %d already in use.\n", pdev->irq);
Manish Rangankarb3a271a2011-07-25 13:48:53 -05004758 goto remove_host;
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05304759 }
David Somayajuluafaf5a22006-09-19 10:28:00 -07004760 }
David Somayajuluafaf5a22006-09-19 10:28:00 -07004761
Lalit Chandivade2232be02010-07-30 14:38:47 +05304762 pci_save_state(ha->pdev);
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05304763 ha->isp_ops->enable_intrs(ha);
David Somayajuluafaf5a22006-09-19 10:28:00 -07004764
4765 /* Start timer thread. */
4766 qla4xxx_start_timer(ha, qla4xxx_timer, 1);
4767
4768 set_bit(AF_INIT_DONE, &ha->flags);
4769
David Somayajuluafaf5a22006-09-19 10:28:00 -07004770 printk(KERN_INFO
4771 " QLogic iSCSI HBA Driver version: %s\n"
4772 " QLogic ISP%04x @ %s, host#=%ld, fw=%02d.%02d.%02d.%02d\n",
4773 qla4xxx_version_str, ha->pdev->device, pci_name(ha->pdev),
4774 ha->host_no, ha->firmware_version[0], ha->firmware_version[1],
4775 ha->patch_number, ha->build_number);
Vikas Chaudharyed1086e2011-07-25 13:48:41 -05004776
Manish Rangankar2a991c22011-07-25 13:48:55 -05004777 if (qla4xxx_setup_boot_info(ha))
4778 ql4_printk(KERN_ERR, ha, "%s:ISCSI boot info setup failed\n",
4779 __func__);
4780
Mike Christie13483732011-12-01 21:38:41 -06004781 /* Perform the build ddb list and login to each */
4782 qla4xxx_build_ddb_list(ha, INIT_ADAPTER);
4783 iscsi_host_for_each_session(ha->host, qla4xxx_login_flash_ddb);
4784
4785 qla4xxx_create_chap_list(ha);
4786
Vikas Chaudharyed1086e2011-07-25 13:48:41 -05004787 qla4xxx_create_ifaces(ha);
David Somayajuluafaf5a22006-09-19 10:28:00 -07004788 return 0;
4789
Manish Rangankarb3a271a2011-07-25 13:48:53 -05004790remove_host:
4791 scsi_remove_host(ha->host);
4792
David Somayajuluafaf5a22006-09-19 10:28:00 -07004793probe_failed:
4794 qla4xxx_free_adapter(ha);
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05304795
4796probe_failed_ioconfig:
Lalit Chandivade2232be02010-07-30 14:38:47 +05304797 pci_disable_pcie_error_reporting(pdev);
David Somayajuluafaf5a22006-09-19 10:28:00 -07004798 scsi_host_put(ha->host);
4799
4800probe_disable_device:
4801 pci_disable_device(pdev);
4802
4803 return ret;
4804}
4805
4806/**
Karen Higgins7eece5a2011-03-21 03:34:29 -07004807 * qla4xxx_prevent_other_port_reinit - prevent other port from re-initialize
4808 * @ha: pointer to adapter structure
4809 *
4810 * Mark the other ISP-4xxx port to indicate that the driver is being removed,
4811 * so that the other port will not re-initialize while in the process of
4812 * removing the ha due to driver unload or hba hotplug.
4813 **/
4814static void qla4xxx_prevent_other_port_reinit(struct scsi_qla_host *ha)
4815{
4816 struct scsi_qla_host *other_ha = NULL;
4817 struct pci_dev *other_pdev = NULL;
4818 int fn = ISP4XXX_PCI_FN_2;
4819
4820 /*iscsi function numbers for ISP4xxx is 1 and 3*/
4821 if (PCI_FUNC(ha->pdev->devfn) & BIT_1)
4822 fn = ISP4XXX_PCI_FN_1;
4823
4824 other_pdev =
4825 pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus),
4826 ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
4827 fn));
4828
4829 /* Get other_ha if other_pdev is valid and state is enable*/
4830 if (other_pdev) {
4831 if (atomic_read(&other_pdev->enable_cnt)) {
4832 other_ha = pci_get_drvdata(other_pdev);
4833 if (other_ha) {
4834 set_bit(AF_HA_REMOVAL, &other_ha->flags);
4835 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: "
4836 "Prevent %s reinit\n", __func__,
4837 dev_name(&other_ha->pdev->dev)));
4838 }
4839 }
4840 pci_dev_put(other_pdev);
4841 }
4842}
4843
Mike Christie13483732011-12-01 21:38:41 -06004844static void qla4xxx_destroy_fw_ddb_session(struct scsi_qla_host *ha)
4845{
4846 struct ddb_entry *ddb_entry;
4847 int options;
4848 int idx;
4849
4850 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
4851
4852 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
4853 if ((ddb_entry != NULL) &&
4854 (ddb_entry->ddb_type == FLASH_DDB)) {
4855
4856 options = LOGOUT_OPTION_CLOSE_SESSION;
4857 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options)
4858 == QLA_ERROR)
4859 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n",
4860 __func__);
4861
4862 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
4863 /*
4864 * we have decremented the reference count of the driver
4865 * when we setup the session to have the driver unload
4866 * to be seamless without actually destroying the
4867 * session
4868 **/
4869 try_module_get(qla4xxx_iscsi_transport.owner);
4870 iscsi_destroy_endpoint(ddb_entry->conn->ep);
4871 qla4xxx_free_ddb(ha, ddb_entry);
4872 iscsi_session_teardown(ddb_entry->sess);
4873 }
4874 }
4875}
Karen Higgins7eece5a2011-03-21 03:34:29 -07004876/**
David Somayajuluafaf5a22006-09-19 10:28:00 -07004877 * qla4xxx_remove_adapter - calback function to remove adapter.
4878 * @pci_dev: PCI device pointer
4879 **/
4880static void __devexit qla4xxx_remove_adapter(struct pci_dev *pdev)
4881{
4882 struct scsi_qla_host *ha;
4883
4884 ha = pci_get_drvdata(pdev);
4885
Karen Higgins7eece5a2011-03-21 03:34:29 -07004886 if (!is_qla8022(ha))
4887 qla4xxx_prevent_other_port_reinit(ha);
David C Somayajulubee4fe82007-05-23 18:03:32 -07004888
Vikas Chaudharyed1086e2011-07-25 13:48:41 -05004889 /* destroy iface from sysfs */
4890 qla4xxx_destroy_ifaces(ha);
4891
Mike Christie13483732011-12-01 21:38:41 -06004892 if ((!ql4xdisablesysfsboot) && ha->boot_kset)
Manish Rangankar2a991c22011-07-25 13:48:55 -05004893 iscsi_boot_destroy_kset(ha->boot_kset);
4894
Mike Christie13483732011-12-01 21:38:41 -06004895 qla4xxx_destroy_fw_ddb_session(ha);
4896
David Somayajuluafaf5a22006-09-19 10:28:00 -07004897 scsi_remove_host(ha->host);
4898
4899 qla4xxx_free_adapter(ha);
4900
4901 scsi_host_put(ha->host);
4902
Lalit Chandivade2232be02010-07-30 14:38:47 +05304903 pci_disable_pcie_error_reporting(pdev);
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05304904 pci_disable_device(pdev);
David Somayajuluafaf5a22006-09-19 10:28:00 -07004905 pci_set_drvdata(pdev, NULL);
4906}
4907
4908/**
4909 * qla4xxx_config_dma_addressing() - Configure OS DMA addressing method.
4910 * @ha: HA context
4911 *
4912 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
4913 * supported addressing method.
4914 */
Adrian Bunk47975472007-04-26 00:35:16 -07004915static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha)
David Somayajuluafaf5a22006-09-19 10:28:00 -07004916{
4917 int retval;
4918
4919 /* Update our PCI device dma_mask for full 64 bit mask */
Yang Hongyang6a355282009-04-06 19:01:13 -07004920 if (pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(64)) == 0) {
4921 if (pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) {
David Somayajuluafaf5a22006-09-19 10:28:00 -07004922 dev_dbg(&ha->pdev->dev,
4923 "Failed to set 64 bit PCI consistent mask; "
4924 "using 32 bit.\n");
4925 retval = pci_set_consistent_dma_mask(ha->pdev,
Yang Hongyang284901a2009-04-06 19:01:15 -07004926 DMA_BIT_MASK(32));
David Somayajuluafaf5a22006-09-19 10:28:00 -07004927 }
4928 } else
Yang Hongyang284901a2009-04-06 19:01:15 -07004929 retval = pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(32));
David Somayajuluafaf5a22006-09-19 10:28:00 -07004930}
4931
4932static int qla4xxx_slave_alloc(struct scsi_device *sdev)
4933{
Manish Rangankarb3a271a2011-07-25 13:48:53 -05004934 struct iscsi_cls_session *cls_sess;
4935 struct iscsi_session *sess;
4936 struct ddb_entry *ddb;
Vikas Chaudhary8bb40332011-03-21 03:34:31 -07004937 int queue_depth = QL4_DEF_QDEPTH;
David Somayajuluafaf5a22006-09-19 10:28:00 -07004938
Manish Rangankarb3a271a2011-07-25 13:48:53 -05004939 cls_sess = starget_to_session(sdev->sdev_target);
4940 sess = cls_sess->dd_data;
4941 ddb = sess->dd_data;
4942
David Somayajuluafaf5a22006-09-19 10:28:00 -07004943 sdev->hostdata = ddb;
4944 sdev->tagged_supported = 1;
Vikas Chaudhary8bb40332011-03-21 03:34:31 -07004945
4946 if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU)
4947 queue_depth = ql4xmaxqdepth;
4948
4949 scsi_activate_tcq(sdev, queue_depth);
David Somayajuluafaf5a22006-09-19 10:28:00 -07004950 return 0;
4951}
4952
4953static int qla4xxx_slave_configure(struct scsi_device *sdev)
4954{
4955 sdev->tagged_supported = 1;
4956 return 0;
4957}
4958
4959static void qla4xxx_slave_destroy(struct scsi_device *sdev)
4960{
4961 scsi_deactivate_tcq(sdev, 1);
4962}
4963
4964/**
4965 * qla4xxx_del_from_active_array - returns an active srb
4966 * @ha: Pointer to host adapter structure.
Anand Gadiyarfd589a82009-07-16 17:13:03 +02004967 * @index: index into the active_array
David Somayajuluafaf5a22006-09-19 10:28:00 -07004968 *
4969 * This routine removes and returns the srb at the specified index
4970 **/
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05304971struct srb *qla4xxx_del_from_active_array(struct scsi_qla_host *ha,
4972 uint32_t index)
David Somayajuluafaf5a22006-09-19 10:28:00 -07004973{
4974 struct srb *srb = NULL;
Vikas Chaudhary53698872010-04-28 11:41:59 +05304975 struct scsi_cmnd *cmd = NULL;
David Somayajuluafaf5a22006-09-19 10:28:00 -07004976
Vikas Chaudhary53698872010-04-28 11:41:59 +05304977 cmd = scsi_host_find_tag(ha->host, index);
4978 if (!cmd)
David Somayajuluafaf5a22006-09-19 10:28:00 -07004979 return srb;
4980
Vikas Chaudhary53698872010-04-28 11:41:59 +05304981 srb = (struct srb *)CMD_SP(cmd);
4982 if (!srb)
David Somayajuluafaf5a22006-09-19 10:28:00 -07004983 return srb;
4984
4985 /* update counters */
4986 if (srb->flags & SRB_DMA_VALID) {
4987 ha->req_q_count += srb->iocb_cnt;
4988 ha->iocb_cnt -= srb->iocb_cnt;
4989 if (srb->cmd)
Vikas Chaudhary53698872010-04-28 11:41:59 +05304990 srb->cmd->host_scribble =
4991 (unsigned char *)(unsigned long) MAX_SRBS;
David Somayajuluafaf5a22006-09-19 10:28:00 -07004992 }
4993 return srb;
4994}
4995
4996/**
David Somayajuluafaf5a22006-09-19 10:28:00 -07004997 * qla4xxx_eh_wait_on_command - waits for command to be returned by firmware
Vikas Chaudhary09a0f712010-04-28 11:42:24 +05304998 * @ha: Pointer to host adapter structure.
David Somayajuluafaf5a22006-09-19 10:28:00 -07004999 * @cmd: Scsi Command to wait on.
5000 *
5001 * This routine waits for the command to be returned by the Firmware
5002 * for some max time.
5003 **/
5004static int qla4xxx_eh_wait_on_command(struct scsi_qla_host *ha,
5005 struct scsi_cmnd *cmd)
5006{
5007 int done = 0;
5008 struct srb *rp;
5009 uint32_t max_wait_time = EH_WAIT_CMD_TOV;
Lalit Chandivade2232be02010-07-30 14:38:47 +05305010 int ret = SUCCESS;
5011
5012 /* Dont wait on command if PCI error is being handled
5013 * by PCI AER driver
5014 */
5015 if (unlikely(pci_channel_offline(ha->pdev)) ||
5016 (test_bit(AF_EEH_BUSY, &ha->flags))) {
5017 ql4_printk(KERN_WARNING, ha, "scsi%ld: Return from %s\n",
5018 ha->host_no, __func__);
5019 return ret;
5020 }
David Somayajuluafaf5a22006-09-19 10:28:00 -07005021
5022 do {
5023 /* Checking to see if its returned to OS */
Vikas Chaudhary53698872010-04-28 11:41:59 +05305024 rp = (struct srb *) CMD_SP(cmd);
David Somayajuluafaf5a22006-09-19 10:28:00 -07005025 if (rp == NULL) {
5026 done++;
5027 break;
5028 }
5029
5030 msleep(2000);
5031 } while (max_wait_time--);
5032
5033 return done;
5034}
5035
5036/**
5037 * qla4xxx_wait_for_hba_online - waits for HBA to come online
5038 * @ha: Pointer to host adapter structure
5039 **/
5040static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha)
5041{
5042 unsigned long wait_online;
5043
Vikas Chaudharyf581a3f2010-10-06 22:47:48 -07005044 wait_online = jiffies + (HBA_ONLINE_TOV * HZ);
David Somayajuluafaf5a22006-09-19 10:28:00 -07005045 while (time_before(jiffies, wait_online)) {
5046
5047 if (adapter_up(ha))
5048 return QLA_SUCCESS;
David Somayajuluafaf5a22006-09-19 10:28:00 -07005049
5050 msleep(2000);
5051 }
5052
5053 return QLA_ERROR;
5054}
5055
5056/**
Mike Christiece545032008-02-29 18:25:20 -06005057 * qla4xxx_eh_wait_for_commands - wait for active cmds to finish.
Anand Gadiyarfd589a82009-07-16 17:13:03 +02005058 * @ha: pointer to HBA
David Somayajuluafaf5a22006-09-19 10:28:00 -07005059 * @t: target id
5060 * @l: lun id
5061 *
5062 * This function waits for all outstanding commands to a lun to complete. It
5063 * returns 0 if all pending commands are returned and 1 otherwise.
5064 **/
Mike Christiece545032008-02-29 18:25:20 -06005065static int qla4xxx_eh_wait_for_commands(struct scsi_qla_host *ha,
5066 struct scsi_target *stgt,
5067 struct scsi_device *sdev)
David Somayajuluafaf5a22006-09-19 10:28:00 -07005068{
5069 int cnt;
5070 int status = 0;
5071 struct scsi_cmnd *cmd;
5072
5073 /*
Mike Christiece545032008-02-29 18:25:20 -06005074 * Waiting for all commands for the designated target or dev
5075 * in the active array
David Somayajuluafaf5a22006-09-19 10:28:00 -07005076 */
5077 for (cnt = 0; cnt < ha->host->can_queue; cnt++) {
5078 cmd = scsi_host_find_tag(ha->host, cnt);
Mike Christiece545032008-02-29 18:25:20 -06005079 if (cmd && stgt == scsi_target(cmd->device) &&
5080 (!sdev || sdev == cmd->device)) {
David Somayajuluafaf5a22006-09-19 10:28:00 -07005081 if (!qla4xxx_eh_wait_on_command(ha, cmd)) {
5082 status++;
5083 break;
5084 }
5085 }
5086 }
5087 return status;
5088}
5089
5090/**
Vikas Chaudhary09a0f712010-04-28 11:42:24 +05305091 * qla4xxx_eh_abort - callback for abort task.
5092 * @cmd: Pointer to Linux's SCSI command structure
5093 *
5094 * This routine is called by the Linux OS to abort the specified
5095 * command.
5096 **/
5097static int qla4xxx_eh_abort(struct scsi_cmnd *cmd)
5098{
5099 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
5100 unsigned int id = cmd->device->id;
5101 unsigned int lun = cmd->device->lun;
Mike Christie92b3e5b2010-10-06 22:51:17 -07005102 unsigned long flags;
Vikas Chaudhary09a0f712010-04-28 11:42:24 +05305103 struct srb *srb = NULL;
5104 int ret = SUCCESS;
5105 int wait = 0;
5106
Vikas Chaudharyc2660df2010-07-10 14:51:02 +05305107 ql4_printk(KERN_INFO, ha,
Christoph Hellwig5cd049a2011-04-04 09:42:14 -04005108 "scsi%ld:%d:%d: Abort command issued cmd=%p\n",
5109 ha->host_no, id, lun, cmd);
Vikas Chaudhary09a0f712010-04-28 11:42:24 +05305110
Mike Christie92b3e5b2010-10-06 22:51:17 -07005111 spin_lock_irqsave(&ha->hardware_lock, flags);
Vikas Chaudhary09a0f712010-04-28 11:42:24 +05305112 srb = (struct srb *) CMD_SP(cmd);
Mike Christie92b3e5b2010-10-06 22:51:17 -07005113 if (!srb) {
5114 spin_unlock_irqrestore(&ha->hardware_lock, flags);
Vikas Chaudhary09a0f712010-04-28 11:42:24 +05305115 return SUCCESS;
Mike Christie92b3e5b2010-10-06 22:51:17 -07005116 }
Vikas Chaudhary09a0f712010-04-28 11:42:24 +05305117 kref_get(&srb->srb_ref);
Mike Christie92b3e5b2010-10-06 22:51:17 -07005118 spin_unlock_irqrestore(&ha->hardware_lock, flags);
Vikas Chaudhary09a0f712010-04-28 11:42:24 +05305119
5120 if (qla4xxx_abort_task(ha, srb) != QLA_SUCCESS) {
5121 DEBUG3(printk("scsi%ld:%d:%d: Abort_task mbx failed.\n",
5122 ha->host_no, id, lun));
5123 ret = FAILED;
5124 } else {
5125 DEBUG3(printk("scsi%ld:%d:%d: Abort_task mbx success.\n",
5126 ha->host_no, id, lun));
5127 wait = 1;
5128 }
5129
5130 kref_put(&srb->srb_ref, qla4xxx_srb_compl);
5131
5132 /* Wait for command to complete */
5133 if (wait) {
5134 if (!qla4xxx_eh_wait_on_command(ha, cmd)) {
5135 DEBUG2(printk("scsi%ld:%d:%d: Abort handler timed out\n",
5136 ha->host_no, id, lun));
5137 ret = FAILED;
5138 }
5139 }
5140
Vikas Chaudharyc2660df2010-07-10 14:51:02 +05305141 ql4_printk(KERN_INFO, ha,
Vikas Chaudhary09a0f712010-04-28 11:42:24 +05305142 "scsi%ld:%d:%d: Abort command - %s\n",
Lucas De Marchi25985ed2011-03-30 22:57:33 -03005143 ha->host_no, id, lun, (ret == SUCCESS) ? "succeeded" : "failed");
Vikas Chaudhary09a0f712010-04-28 11:42:24 +05305144
5145 return ret;
5146}
5147
5148/**
David Somayajuluafaf5a22006-09-19 10:28:00 -07005149 * qla4xxx_eh_device_reset - callback for target reset.
5150 * @cmd: Pointer to Linux's SCSI command structure
5151 *
5152 * This routine is called by the Linux OS to reset all luns on the
5153 * specified target.
5154 **/
5155static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd)
5156{
5157 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
5158 struct ddb_entry *ddb_entry = cmd->device->hostdata;
David Somayajuluafaf5a22006-09-19 10:28:00 -07005159 int ret = FAILED, stat;
5160
Karen Higgins612f7342009-07-15 15:03:01 -05005161 if (!ddb_entry)
David Somayajuluafaf5a22006-09-19 10:28:00 -07005162 return ret;
5163
Mike Christiec01be6d2010-07-22 16:59:49 +05305164 ret = iscsi_block_scsi_eh(cmd);
5165 if (ret)
5166 return ret;
5167 ret = FAILED;
5168
Vikas Chaudharyc2660df2010-07-10 14:51:02 +05305169 ql4_printk(KERN_INFO, ha,
David Somayajuluafaf5a22006-09-19 10:28:00 -07005170 "scsi%ld:%d:%d:%d: DEVICE RESET ISSUED.\n", ha->host_no,
5171 cmd->device->channel, cmd->device->id, cmd->device->lun);
5172
5173 DEBUG2(printk(KERN_INFO
5174 "scsi%ld: DEVICE_RESET cmd=%p jiffies = 0x%lx, to=%x,"
5175 "dpc_flags=%lx, status=%x allowed=%d\n", ha->host_no,
Jens Axboe242f9dc2008-09-14 05:55:09 -07005176 cmd, jiffies, cmd->request->timeout / HZ,
David Somayajuluafaf5a22006-09-19 10:28:00 -07005177 ha->dpc_flags, cmd->result, cmd->allowed));
5178
5179 /* FIXME: wait for hba to go online */
5180 stat = qla4xxx_reset_lun(ha, ddb_entry, cmd->device->lun);
5181 if (stat != QLA_SUCCESS) {
Vikas Chaudharyc2660df2010-07-10 14:51:02 +05305182 ql4_printk(KERN_INFO, ha, "DEVICE RESET FAILED. %d\n", stat);
David Somayajuluafaf5a22006-09-19 10:28:00 -07005183 goto eh_dev_reset_done;
5184 }
5185
Mike Christiece545032008-02-29 18:25:20 -06005186 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device),
5187 cmd->device)) {
Vikas Chaudharyc2660df2010-07-10 14:51:02 +05305188 ql4_printk(KERN_INFO, ha,
Mike Christiece545032008-02-29 18:25:20 -06005189 "DEVICE RESET FAILED - waiting for "
5190 "commands.\n");
5191 goto eh_dev_reset_done;
David Somayajuluafaf5a22006-09-19 10:28:00 -07005192 }
5193
David C Somayajulu9d562912008-03-19 11:23:03 -07005194 /* Send marker. */
5195 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun,
5196 MM_LUN_RESET) != QLA_SUCCESS)
5197 goto eh_dev_reset_done;
5198
Vikas Chaudharyc2660df2010-07-10 14:51:02 +05305199 ql4_printk(KERN_INFO, ha,
David Somayajuluafaf5a22006-09-19 10:28:00 -07005200 "scsi(%ld:%d:%d:%d): DEVICE RESET SUCCEEDED.\n",
5201 ha->host_no, cmd->device->channel, cmd->device->id,
5202 cmd->device->lun);
5203
5204 ret = SUCCESS;
5205
5206eh_dev_reset_done:
5207
5208 return ret;
5209}
5210
5211/**
Mike Christiece545032008-02-29 18:25:20 -06005212 * qla4xxx_eh_target_reset - callback for target reset.
5213 * @cmd: Pointer to Linux's SCSI command structure
5214 *
5215 * This routine is called by the Linux OS to reset the target.
5216 **/
5217static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd)
5218{
5219 struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
5220 struct ddb_entry *ddb_entry = cmd->device->hostdata;
Mike Christiec01be6d2010-07-22 16:59:49 +05305221 int stat, ret;
Mike Christiece545032008-02-29 18:25:20 -06005222
5223 if (!ddb_entry)
5224 return FAILED;
5225
Mike Christiec01be6d2010-07-22 16:59:49 +05305226 ret = iscsi_block_scsi_eh(cmd);
5227 if (ret)
5228 return ret;
5229
Mike Christiece545032008-02-29 18:25:20 -06005230 starget_printk(KERN_INFO, scsi_target(cmd->device),
5231 "WARM TARGET RESET ISSUED.\n");
5232
5233 DEBUG2(printk(KERN_INFO
5234 "scsi%ld: TARGET_DEVICE_RESET cmd=%p jiffies = 0x%lx, "
5235 "to=%x,dpc_flags=%lx, status=%x allowed=%d\n",
Jens Axboe242f9dc2008-09-14 05:55:09 -07005236 ha->host_no, cmd, jiffies, cmd->request->timeout / HZ,
Mike Christiece545032008-02-29 18:25:20 -06005237 ha->dpc_flags, cmd->result, cmd->allowed));
5238
5239 stat = qla4xxx_reset_target(ha, ddb_entry);
5240 if (stat != QLA_SUCCESS) {
5241 starget_printk(KERN_INFO, scsi_target(cmd->device),
5242 "WARM TARGET RESET FAILED.\n");
5243 return FAILED;
5244 }
5245
Mike Christiece545032008-02-29 18:25:20 -06005246 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device),
5247 NULL)) {
5248 starget_printk(KERN_INFO, scsi_target(cmd->device),
5249 "WARM TARGET DEVICE RESET FAILED - "
5250 "waiting for commands.\n");
5251 return FAILED;
5252 }
5253
David C Somayajulu9d562912008-03-19 11:23:03 -07005254 /* Send marker. */
5255 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun,
5256 MM_TGT_WARM_RESET) != QLA_SUCCESS) {
5257 starget_printk(KERN_INFO, scsi_target(cmd->device),
5258 "WARM TARGET DEVICE RESET FAILED - "
5259 "marker iocb failed.\n");
5260 return FAILED;
5261 }
5262
Mike Christiece545032008-02-29 18:25:20 -06005263 starget_printk(KERN_INFO, scsi_target(cmd->device),
5264 "WARM TARGET RESET SUCCEEDED.\n");
5265 return SUCCESS;
5266}
5267
5268/**
Sarang Radke8a288962011-12-06 02:34:10 -08005269 * qla4xxx_is_eh_active - check if error handler is running
5270 * @shost: Pointer to SCSI Host struct
5271 *
5272 * This routine finds that if reset host is called in EH
5273 * scenario or from some application like sg_reset
5274 **/
5275static int qla4xxx_is_eh_active(struct Scsi_Host *shost)
5276{
5277 if (shost->shost_state == SHOST_RECOVERY)
5278 return 1;
5279 return 0;
5280}
5281
5282/**
David Somayajuluafaf5a22006-09-19 10:28:00 -07005283 * qla4xxx_eh_host_reset - kernel callback
5284 * @cmd: Pointer to Linux's SCSI command structure
5285 *
5286 * This routine is invoked by the Linux kernel to perform fatal error
5287 * recovery on the specified adapter.
5288 **/
5289static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd)
5290{
5291 int return_status = FAILED;
5292 struct scsi_qla_host *ha;
5293
Manish Rangankarb3a271a2011-07-25 13:48:53 -05005294 ha = to_qla_host(cmd->device->host);
David Somayajuluafaf5a22006-09-19 10:28:00 -07005295
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05305296 if (ql4xdontresethba) {
5297 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n",
5298 ha->host_no, __func__));
Sarang Radke8a288962011-12-06 02:34:10 -08005299
5300 /* Clear outstanding srb in queues */
5301 if (qla4xxx_is_eh_active(cmd->device->host))
5302 qla4xxx_abort_active_cmds(ha, DID_ABORT << 16);
5303
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05305304 return FAILED;
5305 }
5306
Vikas Chaudharyc2660df2010-07-10 14:51:02 +05305307 ql4_printk(KERN_INFO, ha,
Karen Higginsdca05c42009-07-15 15:03:00 -05005308 "scsi(%ld:%d:%d:%d): HOST RESET ISSUED.\n", ha->host_no,
David Somayajuluafaf5a22006-09-19 10:28:00 -07005309 cmd->device->channel, cmd->device->id, cmd->device->lun);
5310
5311 if (qla4xxx_wait_for_hba_online(ha) != QLA_SUCCESS) {
5312 DEBUG2(printk("scsi%ld:%d: %s: Unable to reset host. Adapter "
5313 "DEAD.\n", ha->host_no, cmd->device->channel,
5314 __func__));
5315
5316 return FAILED;
5317 }
5318
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05305319 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
5320 if (is_qla8022(ha))
5321 set_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
5322 else
5323 set_bit(DPC_RESET_HA, &ha->dpc_flags);
5324 }
Mike Christie50a29ae2008-03-04 13:26:53 -06005325
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05305326 if (qla4xxx_recover_adapter(ha) == QLA_SUCCESS)
David Somayajuluafaf5a22006-09-19 10:28:00 -07005327 return_status = SUCCESS;
David Somayajuluafaf5a22006-09-19 10:28:00 -07005328
Vikas Chaudharyc2660df2010-07-10 14:51:02 +05305329 ql4_printk(KERN_INFO, ha, "HOST RESET %s.\n",
Lucas De Marchi25985ed2011-03-30 22:57:33 -03005330 return_status == FAILED ? "FAILED" : "SUCCEEDED");
David Somayajuluafaf5a22006-09-19 10:28:00 -07005331
5332 return return_status;
5333}
5334
Vikas Chaudhary95d31262011-08-12 02:51:29 -07005335static int qla4xxx_context_reset(struct scsi_qla_host *ha)
5336{
5337 uint32_t mbox_cmd[MBOX_REG_COUNT];
5338 uint32_t mbox_sts[MBOX_REG_COUNT];
5339 struct addr_ctrl_blk_def *acb = NULL;
5340 uint32_t acb_len = sizeof(struct addr_ctrl_blk_def);
5341 int rval = QLA_SUCCESS;
5342 dma_addr_t acb_dma;
5343
5344 acb = dma_alloc_coherent(&ha->pdev->dev,
5345 sizeof(struct addr_ctrl_blk_def),
5346 &acb_dma, GFP_KERNEL);
5347 if (!acb) {
5348 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc acb\n",
5349 __func__);
5350 rval = -ENOMEM;
5351 goto exit_port_reset;
5352 }
5353
5354 memset(acb, 0, acb_len);
5355
5356 rval = qla4xxx_get_acb(ha, acb_dma, PRIMARI_ACB, acb_len);
5357 if (rval != QLA_SUCCESS) {
5358 rval = -EIO;
5359 goto exit_free_acb;
5360 }
5361
5362 rval = qla4xxx_disable_acb(ha);
5363 if (rval != QLA_SUCCESS) {
5364 rval = -EIO;
5365 goto exit_free_acb;
5366 }
5367
5368 wait_for_completion_timeout(&ha->disable_acb_comp,
5369 DISABLE_ACB_TOV * HZ);
5370
5371 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], acb_dma);
5372 if (rval != QLA_SUCCESS) {
5373 rval = -EIO;
5374 goto exit_free_acb;
5375 }
5376
5377exit_free_acb:
5378 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk_def),
5379 acb, acb_dma);
5380exit_port_reset:
5381 DEBUG2(ql4_printk(KERN_INFO, ha, "%s %s\n", __func__,
5382 rval == QLA_SUCCESS ? "SUCCEEDED" : "FAILED"));
5383 return rval;
5384}
5385
5386static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type)
5387{
5388 struct scsi_qla_host *ha = to_qla_host(shost);
5389 int rval = QLA_SUCCESS;
5390
5391 if (ql4xdontresethba) {
5392 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Don't Reset HBA\n",
5393 __func__));
5394 rval = -EPERM;
5395 goto exit_host_reset;
5396 }
5397
5398 rval = qla4xxx_wait_for_hba_online(ha);
5399 if (rval != QLA_SUCCESS) {
5400 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Unable to reset host "
5401 "adapter\n", __func__));
5402 rval = -EIO;
5403 goto exit_host_reset;
5404 }
5405
5406 if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
5407 goto recover_adapter;
5408
5409 switch (reset_type) {
5410 case SCSI_ADAPTER_RESET:
5411 set_bit(DPC_RESET_HA, &ha->dpc_flags);
5412 break;
5413 case SCSI_FIRMWARE_RESET:
5414 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
5415 if (is_qla8022(ha))
5416 /* set firmware context reset */
5417 set_bit(DPC_RESET_HA_FW_CONTEXT,
5418 &ha->dpc_flags);
5419 else {
5420 rval = qla4xxx_context_reset(ha);
5421 goto exit_host_reset;
5422 }
5423 }
5424 break;
5425 }
5426
5427recover_adapter:
5428 rval = qla4xxx_recover_adapter(ha);
5429 if (rval != QLA_SUCCESS) {
5430 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: recover adapter fail\n",
5431 __func__));
5432 rval = -EIO;
5433 }
5434
5435exit_host_reset:
5436 return rval;
5437}
5438
Lalit Chandivade2232be02010-07-30 14:38:47 +05305439/* PCI AER driver recovers from all correctable errors w/o
5440 * driver intervention. For uncorrectable errors PCI AER
5441 * driver calls the following device driver's callbacks
5442 *
5443 * - Fatal Errors - link_reset
5444 * - Non-Fatal Errors - driver's pci_error_detected() which
5445 * returns CAN_RECOVER, NEED_RESET or DISCONNECT.
5446 *
5447 * PCI AER driver calls
5448 * CAN_RECOVER - driver's pci_mmio_enabled(), mmio_enabled
5449 * returns RECOVERED or NEED_RESET if fw_hung
5450 * NEED_RESET - driver's slot_reset()
5451 * DISCONNECT - device is dead & cannot recover
5452 * RECOVERED - driver's pci_resume()
5453 */
5454static pci_ers_result_t
5455qla4xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
5456{
5457 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
5458
5459 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: error detected:state %x\n",
5460 ha->host_no, __func__, state);
5461
5462 if (!is_aer_supported(ha))
5463 return PCI_ERS_RESULT_NONE;
5464
5465 switch (state) {
5466 case pci_channel_io_normal:
5467 clear_bit(AF_EEH_BUSY, &ha->flags);
5468 return PCI_ERS_RESULT_CAN_RECOVER;
5469 case pci_channel_io_frozen:
5470 set_bit(AF_EEH_BUSY, &ha->flags);
5471 qla4xxx_mailbox_premature_completion(ha);
5472 qla4xxx_free_irqs(ha);
5473 pci_disable_device(pdev);
Vikas Chaudhary7b3595d2010-10-06 22:50:56 -07005474 /* Return back all IOs */
5475 qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
Lalit Chandivade2232be02010-07-30 14:38:47 +05305476 return PCI_ERS_RESULT_NEED_RESET;
5477 case pci_channel_io_perm_failure:
5478 set_bit(AF_EEH_BUSY, &ha->flags);
5479 set_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags);
5480 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
5481 return PCI_ERS_RESULT_DISCONNECT;
5482 }
5483 return PCI_ERS_RESULT_NEED_RESET;
5484}
5485
5486/**
5487 * qla4xxx_pci_mmio_enabled() gets called if
5488 * qla4xxx_pci_error_detected() returns PCI_ERS_RESULT_CAN_RECOVER
5489 * and read/write to the device still works.
5490 **/
5491static pci_ers_result_t
5492qla4xxx_pci_mmio_enabled(struct pci_dev *pdev)
5493{
5494 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
5495
5496 if (!is_aer_supported(ha))
5497 return PCI_ERS_RESULT_NONE;
5498
Vikas Chaudhary7b3595d2010-10-06 22:50:56 -07005499 return PCI_ERS_RESULT_RECOVERED;
Lalit Chandivade2232be02010-07-30 14:38:47 +05305500}
5501
Vikas Chaudhary7b3595d2010-10-06 22:50:56 -07005502static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha)
Lalit Chandivade2232be02010-07-30 14:38:47 +05305503{
5504 uint32_t rval = QLA_ERROR;
Vikas Chaudhary7b3595d2010-10-06 22:50:56 -07005505 uint32_t ret = 0;
Lalit Chandivade2232be02010-07-30 14:38:47 +05305506 int fn;
5507 struct pci_dev *other_pdev = NULL;
5508
5509 ql4_printk(KERN_WARNING, ha, "scsi%ld: In %s\n", ha->host_no, __func__);
5510
5511 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
5512
5513 if (test_bit(AF_ONLINE, &ha->flags)) {
5514 clear_bit(AF_ONLINE, &ha->flags);
Manish Rangankarb3a271a2011-07-25 13:48:53 -05005515 clear_bit(AF_LINK_UP, &ha->flags);
5516 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session);
Lalit Chandivade2232be02010-07-30 14:38:47 +05305517 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
Lalit Chandivade2232be02010-07-30 14:38:47 +05305518 }
5519
5520 fn = PCI_FUNC(ha->pdev->devfn);
5521 while (fn > 0) {
5522 fn--;
5523 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Finding PCI device at "
5524 "func %x\n", ha->host_no, __func__, fn);
5525 /* Get the pci device given the domain, bus,
5526 * slot/function number */
5527 other_pdev =
5528 pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus),
5529 ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
5530 fn));
5531
5532 if (!other_pdev)
5533 continue;
5534
5535 if (atomic_read(&other_pdev->enable_cnt)) {
5536 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Found PCI "
5537 "func in enabled state%x\n", ha->host_no,
5538 __func__, fn);
5539 pci_dev_put(other_pdev);
5540 break;
5541 }
5542 pci_dev_put(other_pdev);
5543 }
5544
5545 /* The first function on the card, the reset owner will
5546 * start & initialize the firmware. The other functions
5547 * on the card will reset the firmware context
5548 */
5549 if (!fn) {
5550 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn being reset "
5551 "0x%x is the owner\n", ha->host_no, __func__,
5552 ha->pdev->devfn);
5553
5554 qla4_8xxx_idc_lock(ha);
5555 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
5556 QLA82XX_DEV_COLD);
5557
5558 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION,
5559 QLA82XX_IDC_VERSION);
5560
5561 qla4_8xxx_idc_unlock(ha);
5562 clear_bit(AF_FW_RECOVERY, &ha->flags);
Mike Christie13483732011-12-01 21:38:41 -06005563 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
Lalit Chandivade2232be02010-07-30 14:38:47 +05305564 qla4_8xxx_idc_lock(ha);
5565
5566 if (rval != QLA_SUCCESS) {
5567 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: "
5568 "FAILED\n", ha->host_no, __func__);
5569 qla4_8xxx_clear_drv_active(ha);
5570 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
5571 QLA82XX_DEV_FAILED);
5572 } else {
5573 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: "
5574 "READY\n", ha->host_no, __func__);
5575 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
5576 QLA82XX_DEV_READY);
5577 /* Clear driver state register */
5578 qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_STATE, 0);
5579 qla4_8xxx_set_drv_active(ha);
Vikas Chaudhary7b3595d2010-10-06 22:50:56 -07005580 ret = qla4xxx_request_irqs(ha);
5581 if (ret) {
5582 ql4_printk(KERN_WARNING, ha, "Failed to "
5583 "reserve interrupt %d already in use.\n",
5584 ha->pdev->irq);
5585 rval = QLA_ERROR;
5586 } else {
5587 ha->isp_ops->enable_intrs(ha);
5588 rval = QLA_SUCCESS;
5589 }
Lalit Chandivade2232be02010-07-30 14:38:47 +05305590 }
5591 qla4_8xxx_idc_unlock(ha);
5592 } else {
5593 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn 0x%x is not "
5594 "the reset owner\n", ha->host_no, __func__,
5595 ha->pdev->devfn);
5596 if ((qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE) ==
5597 QLA82XX_DEV_READY)) {
5598 clear_bit(AF_FW_RECOVERY, &ha->flags);
Mike Christie13483732011-12-01 21:38:41 -06005599 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
Vikas Chaudhary7b3595d2010-10-06 22:50:56 -07005600 if (rval == QLA_SUCCESS) {
5601 ret = qla4xxx_request_irqs(ha);
5602 if (ret) {
5603 ql4_printk(KERN_WARNING, ha, "Failed to"
5604 " reserve interrupt %d already in"
5605 " use.\n", ha->pdev->irq);
5606 rval = QLA_ERROR;
5607 } else {
5608 ha->isp_ops->enable_intrs(ha);
5609 rval = QLA_SUCCESS;
5610 }
5611 }
Lalit Chandivade2232be02010-07-30 14:38:47 +05305612 qla4_8xxx_idc_lock(ha);
5613 qla4_8xxx_set_drv_active(ha);
5614 qla4_8xxx_idc_unlock(ha);
5615 }
5616 }
5617 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
5618 return rval;
5619}
5620
5621static pci_ers_result_t
5622qla4xxx_pci_slot_reset(struct pci_dev *pdev)
5623{
5624 pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
5625 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
5626 int rc;
5627
5628 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: slot_reset\n",
5629 ha->host_no, __func__);
5630
5631 if (!is_aer_supported(ha))
5632 return PCI_ERS_RESULT_NONE;
5633
5634 /* Restore the saved state of PCIe device -
5635 * BAR registers, PCI Config space, PCIX, MSI,
5636 * IOV states
5637 */
5638 pci_restore_state(pdev);
5639
5640 /* pci_restore_state() clears the saved_state flag of the device
5641 * save restored state which resets saved_state flag
5642 */
5643 pci_save_state(pdev);
5644
5645 /* Initialize device or resume if in suspended state */
5646 rc = pci_enable_device(pdev);
5647 if (rc) {
Lucas De Marchi25985ed2011-03-30 22:57:33 -03005648 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Can't re-enable "
Lalit Chandivade2232be02010-07-30 14:38:47 +05305649 "device after reset\n", ha->host_no, __func__);
5650 goto exit_slot_reset;
5651 }
5652
Vikas Chaudhary7b3595d2010-10-06 22:50:56 -07005653 ha->isp_ops->disable_intrs(ha);
Lalit Chandivade2232be02010-07-30 14:38:47 +05305654
5655 if (is_qla8022(ha)) {
5656 if (qla4_8xxx_error_recovery(ha) == QLA_SUCCESS) {
5657 ret = PCI_ERS_RESULT_RECOVERED;
5658 goto exit_slot_reset;
5659 } else
5660 goto exit_slot_reset;
5661 }
5662
5663exit_slot_reset:
5664 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Return=%x\n"
5665 "device after reset\n", ha->host_no, __func__, ret);
5666 return ret;
5667}
5668
5669static void
5670qla4xxx_pci_resume(struct pci_dev *pdev)
5671{
5672 struct scsi_qla_host *ha = pci_get_drvdata(pdev);
5673 int ret;
5674
5675 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: pci_resume\n",
5676 ha->host_no, __func__);
5677
5678 ret = qla4xxx_wait_for_hba_online(ha);
5679 if (ret != QLA_SUCCESS) {
5680 ql4_printk(KERN_ERR, ha, "scsi%ld: %s: the device failed to "
5681 "resume I/O from slot/link_reset\n", ha->host_no,
5682 __func__);
5683 }
5684
5685 pci_cleanup_aer_uncorrect_error_status(pdev);
5686 clear_bit(AF_EEH_BUSY, &ha->flags);
5687}
5688
5689static struct pci_error_handlers qla4xxx_err_handler = {
5690 .error_detected = qla4xxx_pci_error_detected,
5691 .mmio_enabled = qla4xxx_pci_mmio_enabled,
5692 .slot_reset = qla4xxx_pci_slot_reset,
5693 .resume = qla4xxx_pci_resume,
5694};
5695
David Somayajuluafaf5a22006-09-19 10:28:00 -07005696static struct pci_device_id qla4xxx_pci_tbl[] = {
5697 {
5698 .vendor = PCI_VENDOR_ID_QLOGIC,
5699 .device = PCI_DEVICE_ID_QLOGIC_ISP4010,
5700 .subvendor = PCI_ANY_ID,
5701 .subdevice = PCI_ANY_ID,
5702 },
5703 {
5704 .vendor = PCI_VENDOR_ID_QLOGIC,
5705 .device = PCI_DEVICE_ID_QLOGIC_ISP4022,
5706 .subvendor = PCI_ANY_ID,
5707 .subdevice = PCI_ANY_ID,
5708 },
David C Somayajulud9150582006-11-15 17:38:40 -08005709 {
5710 .vendor = PCI_VENDOR_ID_QLOGIC,
5711 .device = PCI_DEVICE_ID_QLOGIC_ISP4032,
5712 .subvendor = PCI_ANY_ID,
5713 .subdevice = PCI_ANY_ID,
5714 },
Vikas Chaudharyf4f5df232010-07-28 15:53:44 +05305715 {
5716 .vendor = PCI_VENDOR_ID_QLOGIC,
5717 .device = PCI_DEVICE_ID_QLOGIC_ISP8022,
5718 .subvendor = PCI_ANY_ID,
5719 .subdevice = PCI_ANY_ID,
5720 },
David Somayajuluafaf5a22006-09-19 10:28:00 -07005721 {0, 0},
5722};
5723MODULE_DEVICE_TABLE(pci, qla4xxx_pci_tbl);
5724
Adrian Bunk47975472007-04-26 00:35:16 -07005725static struct pci_driver qla4xxx_pci_driver = {
David Somayajuluafaf5a22006-09-19 10:28:00 -07005726 .name = DRIVER_NAME,
5727 .id_table = qla4xxx_pci_tbl,
5728 .probe = qla4xxx_probe_adapter,
5729 .remove = qla4xxx_remove_adapter,
Lalit Chandivade2232be02010-07-30 14:38:47 +05305730 .err_handler = &qla4xxx_err_handler,
David Somayajuluafaf5a22006-09-19 10:28:00 -07005731};
5732
5733static int __init qla4xxx_module_init(void)
5734{
5735 int ret;
5736
5737 /* Allocate cache for SRBs. */
5738 srb_cachep = kmem_cache_create("qla4xxx_srbs", sizeof(struct srb), 0,
Paul Mundt20c2df82007-07-20 10:11:58 +09005739 SLAB_HWCACHE_ALIGN, NULL);
David Somayajuluafaf5a22006-09-19 10:28:00 -07005740 if (srb_cachep == NULL) {
5741 printk(KERN_ERR
5742 "%s: Unable to allocate SRB cache..."
5743 "Failing load!\n", DRIVER_NAME);
5744 ret = -ENOMEM;
5745 goto no_srp_cache;
5746 }
5747
5748 /* Derive version string. */
5749 strcpy(qla4xxx_version_str, QLA4XXX_DRIVER_VERSION);
Andrew Vasquez11010fe2006-10-06 09:54:59 -07005750 if (ql4xextended_error_logging)
David Somayajuluafaf5a22006-09-19 10:28:00 -07005751 strcat(qla4xxx_version_str, "-debug");
5752
5753 qla4xxx_scsi_transport =
5754 iscsi_register_transport(&qla4xxx_iscsi_transport);
5755 if (!qla4xxx_scsi_transport){
5756 ret = -ENODEV;
5757 goto release_srb_cache;
5758 }
5759
David Somayajuluafaf5a22006-09-19 10:28:00 -07005760 ret = pci_register_driver(&qla4xxx_pci_driver);
5761 if (ret)
5762 goto unregister_transport;
5763
5764 printk(KERN_INFO "QLogic iSCSI HBA Driver\n");
5765 return 0;
Doug Maxey5ae16db2006-10-05 23:50:07 -05005766
David Somayajuluafaf5a22006-09-19 10:28:00 -07005767unregister_transport:
5768 iscsi_unregister_transport(&qla4xxx_iscsi_transport);
5769release_srb_cache:
5770 kmem_cache_destroy(srb_cachep);
5771no_srp_cache:
5772 return ret;
5773}
5774
5775static void __exit qla4xxx_module_exit(void)
5776{
David Somayajuluafaf5a22006-09-19 10:28:00 -07005777 pci_unregister_driver(&qla4xxx_pci_driver);
5778 iscsi_unregister_transport(&qla4xxx_iscsi_transport);
5779 kmem_cache_destroy(srb_cachep);
5780}
5781
5782module_init(qla4xxx_module_init);
5783module_exit(qla4xxx_module_exit);
5784
5785MODULE_AUTHOR("QLogic Corporation");
5786MODULE_DESCRIPTION("QLogic iSCSI HBA Driver");
5787MODULE_LICENSE("GPL");
5788MODULE_VERSION(QLA4XXX_DRIVER_VERSION);