2 * Copyright (C) 2005 - 2016 Broadcom
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License version 2
7 * as published by the Free Software Foundation. The full GNU General
8 * Public License is included in this distribution in the file called COPYING.
10 * Written by: Jayamohan Kallickal (jayamohan.kallickal@broadcom.com)
12 * Contact Information:
13 * linux-drivers@broadcom.com
17 * Costa Mesa, CA 92626
20 #include <scsi/libiscsi.h>
21 #include <scsi/scsi_transport_iscsi.h>
22 #include <scsi/scsi_transport.h>
23 #include <scsi/scsi_cmnd.h>
24 #include <scsi/scsi_device.h>
25 #include <scsi/scsi_host.h>
26 #include <scsi/scsi_netlink.h>
27 #include <net/netlink.h>
28 #include <scsi/scsi.h>
32 extern struct iscsi_transport beiscsi_iscsi_transport;
35 * beiscsi_session_create - creates a new iscsi session
36 * @cmds_max: max commands supported
37 * @qdepth: max queue depth supported
38 * @initial_cmdsn: initial iscsi CMDSN
40 struct iscsi_cls_session *beiscsi_session_create(struct iscsi_endpoint *ep,
45 struct Scsi_Host *shost;
46 struct beiscsi_endpoint *beiscsi_ep;
47 struct iscsi_cls_session *cls_session;
48 struct beiscsi_hba *phba;
49 struct iscsi_session *sess;
50 struct beiscsi_session *beiscsi_sess;
51 struct beiscsi_io_task *io_task;
55 pr_err("beiscsi_session_create: invalid ep\n");
58 beiscsi_ep = ep->dd_data;
59 phba = beiscsi_ep->phba;
61 if (!beiscsi_hba_is_online(phba)) {
62 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
63 "BS_%d : HBA in error 0x%lx\n", phba->state);
67 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
68 "BS_%d : In beiscsi_session_create\n");
69 if (cmds_max > beiscsi_ep->phba->params.wrbs_per_cxn) {
70 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
71 "BS_%d : Cannot handle %d cmds."
72 "Max cmds per session supported is %d. Using %d."
74 beiscsi_ep->phba->params.wrbs_per_cxn,
75 beiscsi_ep->phba->params.wrbs_per_cxn);
77 cmds_max = beiscsi_ep->phba->params.wrbs_per_cxn;
81 cls_session = iscsi_session_setup(&beiscsi_iscsi_transport,
83 sizeof(*beiscsi_sess),
85 initial_cmdsn, ISCSI_MAX_TARGET);
88 sess = cls_session->dd_data;
89 beiscsi_sess = sess->dd_data;
90 beiscsi_sess->bhs_pool = pci_pool_create("beiscsi_bhs_pool",
92 sizeof(struct be_cmd_bhs),
94 if (!beiscsi_sess->bhs_pool)
99 iscsi_session_teardown(cls_session);
104 * beiscsi_session_destroy - destroys iscsi session
105 * @cls_session: pointer to iscsi cls session
107 * Destroys iSCSI session instance and releases
108 * resources allocated for it.
110 void beiscsi_session_destroy(struct iscsi_cls_session *cls_session)
112 struct iscsi_session *sess = cls_session->dd_data;
113 struct beiscsi_session *beiscsi_sess = sess->dd_data;
115 printk(KERN_INFO "In beiscsi_session_destroy\n");
116 pci_pool_destroy(beiscsi_sess->bhs_pool);
117 iscsi_session_teardown(cls_session);
121 * beiscsi_session_fail(): Closing session with appropriate error
122 * @cls_session: ptr to session
124 void beiscsi_session_fail(struct iscsi_cls_session *cls_session)
126 iscsi_session_failure(cls_session->dd_data, ISCSI_ERR_CONN_FAILED);
131 * beiscsi_conn_create - create an instance of iscsi connection
132 * @cls_session: ptr to iscsi_cls_session
135 struct iscsi_cls_conn *
136 beiscsi_conn_create(struct iscsi_cls_session *cls_session, u32 cid)
138 struct beiscsi_hba *phba;
139 struct Scsi_Host *shost;
140 struct iscsi_cls_conn *cls_conn;
141 struct beiscsi_conn *beiscsi_conn;
142 struct iscsi_conn *conn;
143 struct iscsi_session *sess;
144 struct beiscsi_session *beiscsi_sess;
146 shost = iscsi_session_to_shost(cls_session);
147 phba = iscsi_host_priv(shost);
149 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
150 "BS_%d : In beiscsi_conn_create ,cid"
151 "from iscsi layer=%d\n", cid);
153 cls_conn = iscsi_conn_setup(cls_session, sizeof(*beiscsi_conn), cid);
157 conn = cls_conn->dd_data;
158 beiscsi_conn = conn->dd_data;
159 beiscsi_conn->ep = NULL;
160 beiscsi_conn->phba = phba;
161 beiscsi_conn->conn = conn;
162 sess = cls_session->dd_data;
163 beiscsi_sess = sess->dd_data;
164 beiscsi_conn->beiscsi_sess = beiscsi_sess;
169 * beiscsi_bindconn_cid - Bind the beiscsi_conn with phba connection table
170 * @beiscsi_conn: The pointer to beiscsi_conn structure
171 * @phba: The phba instance
172 * @cid: The cid to free
174 static int beiscsi_bindconn_cid(struct beiscsi_hba *phba,
175 struct beiscsi_conn *beiscsi_conn,
178 uint16_t cri_index = BE_GET_CRI_FROM_CID(cid);
180 if (phba->conn_table[cri_index]) {
181 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
182 "BS_%d : Connection table already occupied. Detected clash\n");
186 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
187 "BS_%d : phba->conn_table[%d]=%p(beiscsi_conn)\n",
188 cri_index, beiscsi_conn);
190 phba->conn_table[cri_index] = beiscsi_conn;
196 * beiscsi_conn_bind - Binds iscsi session/connection with TCP connection
197 * @cls_session: pointer to iscsi cls session
198 * @cls_conn: pointer to iscsi cls conn
199 * @transport_fd: EP handle(64 bit)
201 * This function binds the TCP Conn with iSCSI Connection and Session.
203 int beiscsi_conn_bind(struct iscsi_cls_session *cls_session,
204 struct iscsi_cls_conn *cls_conn,
205 u64 transport_fd, int is_leading)
207 struct iscsi_conn *conn = cls_conn->dd_data;
208 struct beiscsi_conn *beiscsi_conn = conn->dd_data;
209 struct Scsi_Host *shost = iscsi_session_to_shost(cls_session);
210 struct beiscsi_hba *phba = iscsi_host_priv(shost);
211 struct hwi_controller *phwi_ctrlr = phba->phwi_ctrlr;
212 struct hwi_wrb_context *pwrb_context;
213 struct beiscsi_endpoint *beiscsi_ep;
214 struct iscsi_endpoint *ep;
216 ep = iscsi_lookup_endpoint(transport_fd);
220 beiscsi_ep = ep->dd_data;
222 if (iscsi_conn_bind(cls_session, cls_conn, is_leading))
225 if (beiscsi_ep->phba != phba) {
226 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
227 "BS_%d : beiscsi_ep->hba=%p not equal to phba=%p\n",
228 beiscsi_ep->phba, phba);
233 pwrb_context = &phwi_ctrlr->wrb_context[BE_GET_CRI_FROM_CID(
234 beiscsi_ep->ep_cid)];
236 beiscsi_conn->beiscsi_conn_cid = beiscsi_ep->ep_cid;
237 beiscsi_conn->ep = beiscsi_ep;
238 beiscsi_ep->conn = beiscsi_conn;
239 beiscsi_conn->doorbell_offset = pwrb_context->doorbell_offset;
241 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
242 "BS_%d : beiscsi_conn=%p conn=%p ep_cid=%d\n",
243 beiscsi_conn, conn, beiscsi_ep->ep_cid);
245 return beiscsi_bindconn_cid(phba, beiscsi_conn, beiscsi_ep->ep_cid);
248 static int beiscsi_iface_create_ipv4(struct beiscsi_hba *phba)
250 if (phba->ipv4_iface)
253 phba->ipv4_iface = iscsi_create_iface(phba->shost,
254 &beiscsi_iscsi_transport,
255 ISCSI_IFACE_TYPE_IPV4,
257 if (!phba->ipv4_iface) {
258 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
260 "create default IPv4 address.\n");
267 static int beiscsi_iface_create_ipv6(struct beiscsi_hba *phba)
269 if (phba->ipv6_iface)
272 phba->ipv6_iface = iscsi_create_iface(phba->shost,
273 &beiscsi_iscsi_transport,
274 ISCSI_IFACE_TYPE_IPV6,
276 if (!phba->ipv6_iface) {
277 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
279 "create default IPv6 address.\n");
286 void beiscsi_iface_create_default(struct beiscsi_hba *phba)
288 struct be_cmd_get_if_info_resp *if_info;
290 if (!beiscsi_if_get_info(phba, BEISCSI_IP_TYPE_V4, &if_info)) {
291 beiscsi_iface_create_ipv4(phba);
295 if (!beiscsi_if_get_info(phba, BEISCSI_IP_TYPE_V6, &if_info)) {
296 beiscsi_iface_create_ipv6(phba);
301 void beiscsi_iface_destroy_default(struct beiscsi_hba *phba)
303 if (phba->ipv6_iface) {
304 iscsi_destroy_iface(phba->ipv6_iface);
305 phba->ipv6_iface = NULL;
307 if (phba->ipv4_iface) {
308 iscsi_destroy_iface(phba->ipv4_iface);
309 phba->ipv4_iface = NULL;
314 * beiscsi_set_vlan_tag()- Set the VLAN TAG
315 * @shost: Scsi Host for the driver instance
316 * @iface_param: Interface paramters
318 * Set the VLAN TAG for the adapter or disable
323 * Failure: Non-Zero Value
326 beiscsi_iface_config_vlan(struct Scsi_Host *shost,
327 struct iscsi_iface_param_info *iface_param)
329 struct beiscsi_hba *phba = iscsi_host_priv(shost);
332 switch (iface_param->param) {
333 case ISCSI_NET_PARAM_VLAN_ENABLED:
335 if (iface_param->value[0] != ISCSI_VLAN_ENABLE)
336 ret = beiscsi_if_set_vlan(phba, BEISCSI_VLAN_DISABLE);
338 case ISCSI_NET_PARAM_VLAN_TAG:
339 ret = beiscsi_if_set_vlan(phba,
340 *((uint16_t *)iface_param->value));
348 beiscsi_iface_config_ipv4(struct Scsi_Host *shost,
349 struct iscsi_iface_param_info *info,
350 void *data, uint32_t dt_len)
352 struct beiscsi_hba *phba = iscsi_host_priv(shost);
353 u8 *ip = NULL, *subnet = NULL, *gw;
357 /* Check the param */
358 switch (info->param) {
359 case ISCSI_NET_PARAM_IFACE_ENABLE:
360 if (info->value[0] == ISCSI_IFACE_ENABLE)
361 ret = beiscsi_iface_create_ipv4(phba);
363 iscsi_destroy_iface(phba->ipv4_iface);
364 phba->ipv4_iface = NULL;
367 case ISCSI_NET_PARAM_IPV4_GW:
369 ret = beiscsi_if_set_gw(phba, BEISCSI_IP_TYPE_V4, gw);
371 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
372 if (info->value[0] == ISCSI_BOOTPROTO_DHCP)
373 ret = beiscsi_if_en_dhcp(phba, BEISCSI_IP_TYPE_V4);
374 else if (info->value[0] == ISCSI_BOOTPROTO_STATIC)
375 /* release DHCP IP address */
376 ret = beiscsi_if_en_static(phba, BEISCSI_IP_TYPE_V4,
379 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
380 "BS_%d : Invalid BOOTPROTO: %d\n",
383 case ISCSI_NET_PARAM_IPV4_ADDR:
385 nla = nla_find(data, dt_len, ISCSI_NET_PARAM_IPV4_SUBNET);
387 info = nla_data(nla);
388 subnet = info->value;
390 ret = beiscsi_if_en_static(phba, BEISCSI_IP_TYPE_V4,
393 case ISCSI_NET_PARAM_IPV4_SUBNET:
395 * OPCODE_COMMON_ISCSI_NTWK_MODIFY_IP_ADDR ioctl needs IP
396 * and subnet both. Find IP to be applied for this subnet.
398 subnet = info->value;
399 nla = nla_find(data, dt_len, ISCSI_NET_PARAM_IPV4_ADDR);
401 info = nla_data(nla);
404 ret = beiscsi_if_en_static(phba, BEISCSI_IP_TYPE_V4,
413 beiscsi_iface_config_ipv6(struct Scsi_Host *shost,
414 struct iscsi_iface_param_info *iface_param,
415 void *data, uint32_t dt_len)
417 struct beiscsi_hba *phba = iscsi_host_priv(shost);
420 switch (iface_param->param) {
421 case ISCSI_NET_PARAM_IFACE_ENABLE:
422 if (iface_param->value[0] == ISCSI_IFACE_ENABLE)
423 ret = beiscsi_iface_create_ipv6(phba);
425 iscsi_destroy_iface(phba->ipv6_iface);
426 phba->ipv6_iface = NULL;
429 case ISCSI_NET_PARAM_IPV6_ADDR:
430 ret = beiscsi_if_en_static(phba, BEISCSI_IP_TYPE_V6,
431 iface_param->value, NULL);
438 int beiscsi_iface_set_param(struct Scsi_Host *shost,
439 void *data, uint32_t dt_len)
441 struct iscsi_iface_param_info *iface_param = NULL;
442 struct beiscsi_hba *phba = iscsi_host_priv(shost);
443 struct nlattr *attrib;
444 uint32_t rm_len = dt_len;
447 if (!beiscsi_hba_is_online(phba)) {
448 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
449 "BS_%d : HBA in error 0x%lx\n", phba->state);
453 /* update interface_handle */
454 ret = beiscsi_if_get_handle(phba);
456 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
457 "BS_%d : Getting Interface Handle Failed\n");
461 nla_for_each_attr(attrib, data, dt_len, rm_len) {
462 iface_param = nla_data(attrib);
464 if (iface_param->param_type != ISCSI_NET_PARAM)
468 * BE2ISCSI only supports 1 interface
470 if (iface_param->iface_num) {
471 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
472 "BS_%d : Invalid iface_num %d."
473 "Only iface_num 0 is supported.\n",
474 iface_param->iface_num);
479 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
480 "BS_%d : %s.0 set param %d",
481 (iface_param->iface_type == ISCSI_IFACE_TYPE_IPV4) ?
482 "ipv4" : "ipv6", iface_param->param);
485 switch (iface_param->param) {
486 case ISCSI_NET_PARAM_VLAN_ENABLED:
487 case ISCSI_NET_PARAM_VLAN_TAG:
488 ret = beiscsi_iface_config_vlan(shost, iface_param);
491 switch (iface_param->iface_type) {
492 case ISCSI_IFACE_TYPE_IPV4:
493 ret = beiscsi_iface_config_ipv4(shost,
497 case ISCSI_IFACE_TYPE_IPV6:
498 ret = beiscsi_iface_config_ipv6(shost,
506 __beiscsi_log(phba, KERN_ERR,
507 "BS_%d : %s.0 set param %d not permitted",
508 (iface_param->iface_type ==
509 ISCSI_IFACE_TYPE_IPV4) ? "ipv4" : "ipv6",
520 static int __beiscsi_iface_get_param(struct beiscsi_hba *phba,
521 struct iscsi_iface *iface,
522 int param, char *buf)
524 struct be_cmd_get_if_info_resp *if_info;
525 int len, ip_type = BEISCSI_IP_TYPE_V4;
527 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6)
528 ip_type = BEISCSI_IP_TYPE_V6;
530 len = beiscsi_if_get_info(phba, ip_type, &if_info);
535 case ISCSI_NET_PARAM_IPV4_ADDR:
536 len = sprintf(buf, "%pI4\n", if_info->ip_addr.addr);
538 case ISCSI_NET_PARAM_IPV6_ADDR:
539 len = sprintf(buf, "%pI6\n", if_info->ip_addr.addr);
541 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
542 if (!if_info->dhcp_state)
543 len = sprintf(buf, "static\n");
545 len = sprintf(buf, "dhcp\n");
547 case ISCSI_NET_PARAM_IPV4_SUBNET:
548 len = sprintf(buf, "%pI4\n", if_info->ip_addr.subnet_mask);
550 case ISCSI_NET_PARAM_VLAN_ENABLED:
551 len = sprintf(buf, "%s\n",
552 (if_info->vlan_priority == BEISCSI_VLAN_DISABLE) ?
553 "disable" : "enable");
555 case ISCSI_NET_PARAM_VLAN_ID:
556 if (if_info->vlan_priority == BEISCSI_VLAN_DISABLE)
559 len = sprintf(buf, "%d\n",
560 (if_info->vlan_priority &
563 case ISCSI_NET_PARAM_VLAN_PRIORITY:
564 if (if_info->vlan_priority == BEISCSI_VLAN_DISABLE)
567 len = sprintf(buf, "%d\n",
568 ((if_info->vlan_priority >> 13) &
569 ISCSI_MAX_VLAN_PRIORITY));
579 int beiscsi_iface_get_param(struct iscsi_iface *iface,
580 enum iscsi_param_type param_type,
581 int param, char *buf)
583 struct Scsi_Host *shost = iscsi_iface_to_shost(iface);
584 struct beiscsi_hba *phba = iscsi_host_priv(shost);
585 struct be_cmd_get_def_gateway_resp gateway;
588 if (param_type != ISCSI_NET_PARAM)
590 if (!beiscsi_hba_is_online(phba)) {
591 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
592 "BS_%d : HBA in error 0x%lx\n", phba->state);
597 case ISCSI_NET_PARAM_IPV4_ADDR:
598 case ISCSI_NET_PARAM_IPV4_SUBNET:
599 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
600 case ISCSI_NET_PARAM_IPV6_ADDR:
601 case ISCSI_NET_PARAM_VLAN_ENABLED:
602 case ISCSI_NET_PARAM_VLAN_ID:
603 case ISCSI_NET_PARAM_VLAN_PRIORITY:
604 len = __beiscsi_iface_get_param(phba, iface, param, buf);
606 case ISCSI_NET_PARAM_IFACE_ENABLE:
607 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
608 len = sprintf(buf, "%s\n",
609 phba->ipv4_iface ? "enable" : "disable");
610 else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6)
611 len = sprintf(buf, "%s\n",
612 phba->ipv6_iface ? "enable" : "disable");
614 case ISCSI_NET_PARAM_IPV4_GW:
615 memset(&gateway, 0, sizeof(gateway));
616 len = beiscsi_if_get_gw(phba, BEISCSI_IP_TYPE_V4, &gateway);
618 len = sprintf(buf, "%pI4\n", &gateway.ip_addr.addr);
626 * beiscsi_ep_get_param - get the iscsi parameter
627 * @ep: pointer to iscsi ep
628 * @param: parameter type identifier
629 * @buf: buffer pointer
631 * returns iscsi parameter
633 int beiscsi_ep_get_param(struct iscsi_endpoint *ep,
634 enum iscsi_param param, char *buf)
636 struct beiscsi_endpoint *beiscsi_ep = ep->dd_data;
639 beiscsi_log(beiscsi_ep->phba, KERN_INFO,
641 "BS_%d : In beiscsi_ep_get_param,"
642 " param= %d\n", param);
645 case ISCSI_PARAM_CONN_PORT:
646 len = sprintf(buf, "%hu\n", beiscsi_ep->dst_tcpport);
648 case ISCSI_PARAM_CONN_ADDRESS:
649 if (beiscsi_ep->ip_type == BEISCSI_IP_TYPE_V4)
650 len = sprintf(buf, "%pI4\n", &beiscsi_ep->dst_addr);
652 len = sprintf(buf, "%pI6\n", &beiscsi_ep->dst6_addr);
660 int beiscsi_set_param(struct iscsi_cls_conn *cls_conn,
661 enum iscsi_param param, char *buf, int buflen)
663 struct iscsi_conn *conn = cls_conn->dd_data;
664 struct iscsi_session *session = conn->session;
665 struct beiscsi_hba *phba = NULL;
668 phba = ((struct beiscsi_conn *)conn->dd_data)->phba;
669 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
670 "BS_%d : In beiscsi_conn_set_param,"
671 " param= %d\n", param);
673 ret = iscsi_set_param(cls_conn, param, buf, buflen);
677 * If userspace tried to set the value to higher than we can
678 * support override here.
681 case ISCSI_PARAM_FIRST_BURST:
682 if (session->first_burst > 8192)
683 session->first_burst = 8192;
685 case ISCSI_PARAM_MAX_RECV_DLENGTH:
686 if (conn->max_recv_dlength > 65536)
687 conn->max_recv_dlength = 65536;
689 case ISCSI_PARAM_MAX_BURST:
690 if (session->max_burst > 262144)
691 session->max_burst = 262144;
693 case ISCSI_PARAM_MAX_XMIT_DLENGTH:
694 if (conn->max_xmit_dlength > 65536)
695 conn->max_xmit_dlength = 65536;
704 * beiscsi_get_initname - Read Initiator Name from flash
705 * @buf: buffer bointer
706 * @phba: The device priv structure instance
708 * returns number of bytes
710 static int beiscsi_get_initname(char *buf, struct beiscsi_hba *phba)
714 struct be_mcc_wrb *wrb;
715 struct be_cmd_hba_name *resp;
717 tag = be_cmd_get_initname(phba);
719 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
720 "BS_%d : Getting Initiator Name Failed\n");
725 rc = beiscsi_mccq_compl_wait(phba, tag, &wrb, NULL);
727 beiscsi_log(phba, KERN_ERR,
728 BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
729 "BS_%d : Initiator Name MBX Failed\n");
733 resp = embedded_payload(wrb);
734 rc = sprintf(buf, "%s\n", resp->initiator_name);
739 * beiscsi_get_port_state - Get the Port State
740 * @shost : pointer to scsi_host structure
743 static void beiscsi_get_port_state(struct Scsi_Host *shost)
745 struct beiscsi_hba *phba = iscsi_host_priv(shost);
746 struct iscsi_cls_host *ihost = shost->shost_data;
748 ihost->port_state = test_bit(BEISCSI_HBA_LINK_UP, &phba->state) ?
749 ISCSI_PORT_STATE_UP : ISCSI_PORT_STATE_DOWN;
753 * beiscsi_get_port_speed - Get the Port Speed from Adapter
754 * @shost : pointer to scsi_host structure
757 static void beiscsi_get_port_speed(struct Scsi_Host *shost)
759 struct beiscsi_hba *phba = iscsi_host_priv(shost);
760 struct iscsi_cls_host *ihost = shost->shost_data;
762 switch (phba->port_speed) {
763 case BE2ISCSI_LINK_SPEED_10MBPS:
764 ihost->port_speed = ISCSI_PORT_SPEED_10MBPS;
766 case BE2ISCSI_LINK_SPEED_100MBPS:
767 ihost->port_speed = ISCSI_PORT_SPEED_100MBPS;
769 case BE2ISCSI_LINK_SPEED_1GBPS:
770 ihost->port_speed = ISCSI_PORT_SPEED_1GBPS;
772 case BE2ISCSI_LINK_SPEED_10GBPS:
773 ihost->port_speed = ISCSI_PORT_SPEED_10GBPS;
775 case BE2ISCSI_LINK_SPEED_25GBPS:
776 ihost->port_speed = ISCSI_PORT_SPEED_25GBPS;
778 case BE2ISCSI_LINK_SPEED_40GBPS:
779 ihost->port_speed = ISCSI_PORT_SPEED_40GBPS;
782 ihost->port_speed = ISCSI_PORT_SPEED_UNKNOWN;
787 * beiscsi_get_host_param - get the iscsi parameter
788 * @shost: pointer to scsi_host structure
789 * @param: parameter type identifier
790 * @buf: buffer pointer
792 * returns host parameter
794 int beiscsi_get_host_param(struct Scsi_Host *shost,
795 enum iscsi_host_param param, char *buf)
797 struct beiscsi_hba *phba = iscsi_host_priv(shost);
800 if (!beiscsi_hba_is_online(phba)) {
801 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
802 "BS_%d : HBA in error 0x%lx\n", phba->state);
805 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
806 "BS_%d : In beiscsi_get_host_param, param = %d\n", param);
809 case ISCSI_HOST_PARAM_HWADDRESS:
810 status = beiscsi_get_macaddr(buf, phba);
812 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
813 "BS_%d : beiscsi_get_macaddr Failed\n");
817 case ISCSI_HOST_PARAM_INITIATOR_NAME:
818 status = beiscsi_get_initname(buf, phba);
820 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
821 "BS_%d : Retreiving Initiator Name Failed\n");
825 case ISCSI_HOST_PARAM_PORT_STATE:
826 beiscsi_get_port_state(shost);
827 status = sprintf(buf, "%s\n", iscsi_get_port_state_name(shost));
829 case ISCSI_HOST_PARAM_PORT_SPEED:
830 beiscsi_get_port_speed(shost);
831 status = sprintf(buf, "%s\n", iscsi_get_port_speed_name(shost));
834 return iscsi_host_get_param(shost, param, buf);
839 int beiscsi_get_macaddr(char *buf, struct beiscsi_hba *phba)
841 struct be_cmd_get_nic_conf_resp resp;
844 if (phba->mac_addr_set)
845 return sysfs_format_mac(buf, phba->mac_address, ETH_ALEN);
847 memset(&resp, 0, sizeof(resp));
848 rc = mgmt_get_nic_conf(phba, &resp);
852 phba->mac_addr_set = true;
853 memcpy(phba->mac_address, resp.mac_address, ETH_ALEN);
854 return sysfs_format_mac(buf, phba->mac_address, ETH_ALEN);
858 * beiscsi_conn_get_stats - get the iscsi stats
859 * @cls_conn: pointer to iscsi cls conn
860 * @stats: pointer to iscsi_stats structure
862 * returns iscsi stats
864 void beiscsi_conn_get_stats(struct iscsi_cls_conn *cls_conn,
865 struct iscsi_stats *stats)
867 struct iscsi_conn *conn = cls_conn->dd_data;
868 struct beiscsi_hba *phba = NULL;
870 phba = ((struct beiscsi_conn *)conn->dd_data)->phba;
871 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
872 "BS_%d : In beiscsi_conn_get_stats\n");
874 stats->txdata_octets = conn->txdata_octets;
875 stats->rxdata_octets = conn->rxdata_octets;
876 stats->dataout_pdus = conn->dataout_pdus_cnt;
877 stats->scsirsp_pdus = conn->scsirsp_pdus_cnt;
878 stats->scsicmd_pdus = conn->scsicmd_pdus_cnt;
879 stats->datain_pdus = conn->datain_pdus_cnt;
880 stats->tmfrsp_pdus = conn->tmfrsp_pdus_cnt;
881 stats->tmfcmd_pdus = conn->tmfcmd_pdus_cnt;
882 stats->r2t_pdus = conn->r2t_pdus_cnt;
883 stats->digest_err = 0;
884 stats->timeout_err = 0;
885 stats->custom_length = 1;
886 strcpy(stats->custom[0].desc, "eh_abort_cnt");
887 stats->custom[0].value = conn->eh_abort_cnt;
891 * beiscsi_set_params_for_offld - get the parameters for offload
892 * @beiscsi_conn: pointer to beiscsi_conn
893 * @params: pointer to offload_params structure
895 static void beiscsi_set_params_for_offld(struct beiscsi_conn *beiscsi_conn,
896 struct beiscsi_offload_params *params)
898 struct iscsi_conn *conn = beiscsi_conn->conn;
899 struct iscsi_session *session = conn->session;
901 AMAP_SET_BITS(struct amap_beiscsi_offload_params, max_burst_length,
902 params, session->max_burst);
903 AMAP_SET_BITS(struct amap_beiscsi_offload_params,
904 max_send_data_segment_length, params,
905 conn->max_xmit_dlength);
906 AMAP_SET_BITS(struct amap_beiscsi_offload_params, first_burst_length,
907 params, session->first_burst);
908 AMAP_SET_BITS(struct amap_beiscsi_offload_params, erl, params,
910 AMAP_SET_BITS(struct amap_beiscsi_offload_params, dde, params,
912 AMAP_SET_BITS(struct amap_beiscsi_offload_params, hde, params,
914 AMAP_SET_BITS(struct amap_beiscsi_offload_params, ir2t, params,
915 session->initial_r2t_en);
916 AMAP_SET_BITS(struct amap_beiscsi_offload_params, imd, params,
917 session->imm_data_en);
918 AMAP_SET_BITS(struct amap_beiscsi_offload_params,
919 data_seq_inorder, params,
920 session->dataseq_inorder_en);
921 AMAP_SET_BITS(struct amap_beiscsi_offload_params,
922 pdu_seq_inorder, params,
923 session->pdu_inorder_en);
924 AMAP_SET_BITS(struct amap_beiscsi_offload_params, max_r2t, params,
926 AMAP_SET_BITS(struct amap_beiscsi_offload_params, exp_statsn, params,
927 (conn->exp_statsn - 1));
928 AMAP_SET_BITS(struct amap_beiscsi_offload_params,
929 max_recv_data_segment_length, params,
930 conn->max_recv_dlength);
935 * beiscsi_conn_start - offload of session to chip
936 * @cls_conn: pointer to beiscsi_conn
938 int beiscsi_conn_start(struct iscsi_cls_conn *cls_conn)
940 struct iscsi_conn *conn = cls_conn->dd_data;
941 struct beiscsi_conn *beiscsi_conn = conn->dd_data;
942 struct beiscsi_endpoint *beiscsi_ep;
943 struct beiscsi_offload_params params;
944 struct beiscsi_hba *phba;
946 phba = ((struct beiscsi_conn *)conn->dd_data)->phba;
948 if (!beiscsi_hba_is_online(phba)) {
949 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
950 "BS_%d : HBA in error 0x%lx\n", phba->state);
953 beiscsi_log(beiscsi_conn->phba, KERN_INFO, BEISCSI_LOG_CONFIG,
954 "BS_%d : In beiscsi_conn_start\n");
956 memset(¶ms, 0, sizeof(struct beiscsi_offload_params));
957 beiscsi_ep = beiscsi_conn->ep;
959 beiscsi_log(beiscsi_conn->phba, KERN_ERR,
961 "BS_%d : In beiscsi_conn_start , no beiscsi_ep\n");
963 beiscsi_conn->login_in_progress = 0;
964 beiscsi_set_params_for_offld(beiscsi_conn, ¶ms);
965 beiscsi_offload_connection(beiscsi_conn, ¶ms);
966 iscsi_conn_start(cls_conn);
971 * beiscsi_get_cid - Allocate a cid
972 * @phba: The phba instance
974 static int beiscsi_get_cid(struct beiscsi_hba *phba)
976 unsigned short cid = 0xFFFF, cid_from_ulp;
977 struct ulp_cid_info *cid_info = NULL;
978 uint16_t cid_avlbl_ulp0, cid_avlbl_ulp1;
980 /* Find the ULP which has more CID available */
981 cid_avlbl_ulp0 = (phba->cid_array_info[BEISCSI_ULP0]) ?
982 BEISCSI_ULP0_AVLBL_CID(phba) : 0;
983 cid_avlbl_ulp1 = (phba->cid_array_info[BEISCSI_ULP1]) ?
984 BEISCSI_ULP1_AVLBL_CID(phba) : 0;
985 cid_from_ulp = (cid_avlbl_ulp0 > cid_avlbl_ulp1) ?
986 BEISCSI_ULP0 : BEISCSI_ULP1;
988 if (test_bit(cid_from_ulp, (void *)&phba->fw_config.ulp_supported)) {
989 cid_info = phba->cid_array_info[cid_from_ulp];
990 if (!cid_info->avlbl_cids)
993 cid = cid_info->cid_array[cid_info->cid_alloc++];
995 if (cid_info->cid_alloc == BEISCSI_GET_CID_COUNT(
997 cid_info->cid_alloc = 0;
999 cid_info->avlbl_cids--;
1005 * beiscsi_put_cid - Free the cid
1006 * @phba: The phba for which the cid is being freed
1007 * @cid: The cid to free
1009 static void beiscsi_put_cid(struct beiscsi_hba *phba, unsigned short cid)
1011 uint16_t cid_post_ulp;
1012 struct hwi_controller *phwi_ctrlr;
1013 struct hwi_wrb_context *pwrb_context;
1014 struct ulp_cid_info *cid_info = NULL;
1015 uint16_t cri_index = BE_GET_CRI_FROM_CID(cid);
1017 phwi_ctrlr = phba->phwi_ctrlr;
1018 pwrb_context = &phwi_ctrlr->wrb_context[cri_index];
1019 cid_post_ulp = pwrb_context->ulp_num;
1021 cid_info = phba->cid_array_info[cid_post_ulp];
1022 cid_info->avlbl_cids++;
1024 cid_info->cid_array[cid_info->cid_free++] = cid;
1025 if (cid_info->cid_free == BEISCSI_GET_CID_COUNT(phba, cid_post_ulp))
1026 cid_info->cid_free = 0;
1030 * beiscsi_free_ep - free endpoint
1031 * @ep: pointer to iscsi endpoint structure
1033 static void beiscsi_free_ep(struct beiscsi_endpoint *beiscsi_ep)
1035 struct beiscsi_hba *phba = beiscsi_ep->phba;
1036 struct beiscsi_conn *beiscsi_conn;
1038 beiscsi_put_cid(phba, beiscsi_ep->ep_cid);
1039 beiscsi_ep->phba = NULL;
1040 phba->ep_array[BE_GET_CRI_FROM_CID
1041 (beiscsi_ep->ep_cid)] = NULL;
1044 * Check if any connection resource allocated by driver
1045 * is to be freed.This case occurs when target redirection
1046 * or connection retry is done.
1048 if (!beiscsi_ep->conn)
1051 beiscsi_conn = beiscsi_ep->conn;
1052 if (beiscsi_conn->login_in_progress) {
1053 beiscsi_free_mgmt_task_handles(beiscsi_conn,
1054 beiscsi_conn->task);
1055 beiscsi_conn->login_in_progress = 0;
1060 * beiscsi_open_conn - Ask FW to open a TCP connection
1061 * @ep: endpoint to be used
1062 * @src_addr: The source IP address
1063 * @dst_addr: The Destination IP address
1065 * Asks the FW to open a TCP connection
1067 static int beiscsi_open_conn(struct iscsi_endpoint *ep,
1068 struct sockaddr *src_addr,
1069 struct sockaddr *dst_addr, int non_blocking)
1071 struct beiscsi_endpoint *beiscsi_ep = ep->dd_data;
1072 struct beiscsi_hba *phba = beiscsi_ep->phba;
1073 struct tcp_connect_and_offload_out *ptcpcnct_out;
1074 struct be_dma_mem nonemb_cmd;
1075 unsigned int tag, req_memsize;
1078 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
1079 "BS_%d : In beiscsi_open_conn\n");
1081 beiscsi_ep->ep_cid = beiscsi_get_cid(phba);
1082 if (beiscsi_ep->ep_cid == 0xFFFF) {
1083 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
1084 "BS_%d : No free cid available\n");
1088 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
1089 "BS_%d : In beiscsi_open_conn, ep_cid=%d\n",
1090 beiscsi_ep->ep_cid);
1092 phba->ep_array[BE_GET_CRI_FROM_CID
1093 (beiscsi_ep->ep_cid)] = ep;
1095 beiscsi_ep->cid_vld = 0;
1097 if (is_chip_be2_be3r(phba))
1098 req_memsize = sizeof(struct tcp_connect_and_offload_in);
1100 req_memsize = sizeof(struct tcp_connect_and_offload_in_v1);
1102 nonemb_cmd.va = pci_alloc_consistent(phba->ctrl.pdev,
1105 if (nonemb_cmd.va == NULL) {
1107 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
1108 "BS_%d : Failed to allocate memory for"
1109 " mgmt_open_connection\n");
1111 beiscsi_free_ep(beiscsi_ep);
1114 nonemb_cmd.size = req_memsize;
1115 memset(nonemb_cmd.va, 0, nonemb_cmd.size);
1116 tag = mgmt_open_connection(phba, dst_addr, beiscsi_ep, &nonemb_cmd);
1118 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
1119 "BS_%d : mgmt_open_connection Failed for cid=%d\n",
1120 beiscsi_ep->ep_cid);
1122 pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size,
1123 nonemb_cmd.va, nonemb_cmd.dma);
1124 beiscsi_free_ep(beiscsi_ep);
1128 ret = beiscsi_mccq_compl_wait(phba, tag, NULL, &nonemb_cmd);
1130 beiscsi_log(phba, KERN_ERR,
1131 BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
1132 "BS_%d : mgmt_open_connection Failed");
1135 pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size,
1136 nonemb_cmd.va, nonemb_cmd.dma);
1138 beiscsi_free_ep(beiscsi_ep);
1142 ptcpcnct_out = (struct tcp_connect_and_offload_out *)nonemb_cmd.va;
1143 beiscsi_ep = ep->dd_data;
1144 beiscsi_ep->fw_handle = ptcpcnct_out->connection_handle;
1145 beiscsi_ep->cid_vld = 1;
1146 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
1147 "BS_%d : mgmt_open_connection Success\n");
1149 pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size,
1150 nonemb_cmd.va, nonemb_cmd.dma);
1155 * beiscsi_ep_connect - Ask chip to create TCP Conn
1156 * @scsi_host: Pointer to scsi_host structure
1157 * @dst_addr: The IP address of Target
1158 * @non_blocking: blocking or non-blocking call
1160 * This routines first asks chip to create a connection and then allocates an EP
1162 struct iscsi_endpoint *
1163 beiscsi_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr,
1166 struct beiscsi_hba *phba;
1167 struct beiscsi_endpoint *beiscsi_ep;
1168 struct iscsi_endpoint *ep;
1173 pr_err("beiscsi_ep_connect shost is NULL\n");
1174 return ERR_PTR(ret);
1177 phba = iscsi_host_priv(shost);
1178 if (!beiscsi_hba_is_online(phba)) {
1180 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
1181 "BS_%d : HBA in error 0x%lx\n", phba->state);
1182 return ERR_PTR(ret);
1184 if (!test_bit(BEISCSI_HBA_LINK_UP, &phba->state)) {
1186 beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
1187 "BS_%d : The Adapter Port state is Down!!!\n");
1188 return ERR_PTR(ret);
1191 ep = iscsi_create_endpoint(sizeof(struct beiscsi_endpoint));
1194 return ERR_PTR(ret);
1197 beiscsi_ep = ep->dd_data;
1198 beiscsi_ep->phba = phba;
1199 beiscsi_ep->openiscsi_ep = ep;
1200 ret = beiscsi_open_conn(ep, NULL, dst_addr, non_blocking);
1202 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
1203 "BS_%d : Failed in beiscsi_open_conn\n");
1210 iscsi_destroy_endpoint(ep);
1211 return ERR_PTR(ret);
1215 * beiscsi_ep_poll - Poll to see if connection is established
1216 * @ep: endpoint to be used
1217 * @timeout_ms: timeout specified in millisecs
1219 * Poll to see if TCP connection established
1221 int beiscsi_ep_poll(struct iscsi_endpoint *ep, int timeout_ms)
1223 struct beiscsi_endpoint *beiscsi_ep = ep->dd_data;
1225 beiscsi_log(beiscsi_ep->phba, KERN_INFO, BEISCSI_LOG_CONFIG,
1226 "BS_%d : In beiscsi_ep_poll\n");
1228 if (beiscsi_ep->cid_vld == 1)
1235 * beiscsi_flush_cq()- Flush the CQ created.
1236 * @phba: ptr device priv structure.
1238 * Before the connection resource are freed flush
1239 * all the CQ enteries
1241 static void beiscsi_flush_cq(struct beiscsi_hba *phba)
1244 struct be_eq_obj *pbe_eq;
1245 struct hwi_controller *phwi_ctrlr;
1246 struct hwi_context_memory *phwi_context;
1248 phwi_ctrlr = phba->phwi_ctrlr;
1249 phwi_context = phwi_ctrlr->phwi_ctxt;
1251 for (i = 0; i < phba->num_cpus; i++) {
1252 pbe_eq = &phwi_context->be_eq[i];
1253 irq_poll_disable(&pbe_eq->iopoll);
1254 beiscsi_process_cq(pbe_eq, BE2_MAX_NUM_CQ_PROC);
1255 irq_poll_enable(&pbe_eq->iopoll);
1260 * beiscsi_close_conn - Upload the connection
1261 * @ep: The iscsi endpoint
1262 * @flag: The type of connection closure
1264 static int beiscsi_close_conn(struct beiscsi_endpoint *beiscsi_ep, int flag)
1268 struct beiscsi_hba *phba = beiscsi_ep->phba;
1270 tag = mgmt_upload_connection(phba, beiscsi_ep->ep_cid, flag);
1272 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
1273 "BS_%d : upload failed for cid 0x%x\n",
1274 beiscsi_ep->ep_cid);
1279 ret = beiscsi_mccq_compl_wait(phba, tag, NULL, NULL);
1281 /* Flush the CQ entries */
1282 beiscsi_flush_cq(phba);
1288 * beiscsi_unbind_conn_to_cid - Unbind the beiscsi_conn from phba conn table
1289 * @phba: The phba instance
1290 * @cid: The cid to free
1292 static int beiscsi_unbind_conn_to_cid(struct beiscsi_hba *phba,
1295 uint16_t cri_index = BE_GET_CRI_FROM_CID(cid);
1297 if (phba->conn_table[cri_index])
1298 phba->conn_table[cri_index] = NULL;
1300 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
1301 "BS_%d : Connection table Not occupied.\n");
1308 * beiscsi_ep_disconnect - Tears down the TCP connection
1309 * @ep: endpoint to be used
1311 * Tears down the TCP connection
1313 void beiscsi_ep_disconnect(struct iscsi_endpoint *ep)
1315 struct beiscsi_conn *beiscsi_conn;
1316 struct beiscsi_endpoint *beiscsi_ep;
1317 struct beiscsi_hba *phba;
1319 uint8_t mgmt_invalidate_flag, tcp_upload_flag;
1320 unsigned short savecfg_flag = CMD_ISCSI_SESSION_SAVE_CFG_ON_FLASH;
1322 beiscsi_ep = ep->dd_data;
1323 phba = beiscsi_ep->phba;
1324 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
1325 "BS_%d : In beiscsi_ep_disconnect for ep_cid = %d\n",
1326 beiscsi_ep->ep_cid);
1328 if (beiscsi_ep->conn) {
1329 beiscsi_conn = beiscsi_ep->conn;
1330 iscsi_suspend_queue(beiscsi_conn->conn);
1331 mgmt_invalidate_flag = ~BEISCSI_NO_RST_ISSUE;
1332 tcp_upload_flag = CONNECTION_UPLOAD_GRACEFUL;
1334 mgmt_invalidate_flag = BEISCSI_NO_RST_ISSUE;
1335 tcp_upload_flag = CONNECTION_UPLOAD_ABORT;
1338 if (!beiscsi_hba_is_online(phba)) {
1339 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
1340 "BS_%d : HBA in error 0x%lx\n", phba->state);
1344 tag = mgmt_invalidate_connection(phba, beiscsi_ep,
1346 mgmt_invalidate_flag,
1349 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
1350 "BS_%d : mgmt_invalidate_connection Failed for cid=%d\n",
1351 beiscsi_ep->ep_cid);
1354 beiscsi_mccq_compl_wait(phba, tag, NULL, NULL);
1355 beiscsi_close_conn(beiscsi_ep, tcp_upload_flag);
1357 msleep(BEISCSI_LOGOUT_SYNC_DELAY);
1358 beiscsi_free_ep(beiscsi_ep);
1359 beiscsi_unbind_conn_to_cid(phba, beiscsi_ep->ep_cid);
1360 iscsi_destroy_endpoint(beiscsi_ep->openiscsi_ep);
1363 umode_t beiscsi_attr_is_visible(int param_type, int param)
1365 switch (param_type) {
1366 case ISCSI_NET_PARAM:
1368 case ISCSI_NET_PARAM_IFACE_ENABLE:
1369 case ISCSI_NET_PARAM_IPV4_ADDR:
1370 case ISCSI_NET_PARAM_IPV4_SUBNET:
1371 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
1372 case ISCSI_NET_PARAM_IPV4_GW:
1373 case ISCSI_NET_PARAM_IPV6_ADDR:
1374 case ISCSI_NET_PARAM_VLAN_ID:
1375 case ISCSI_NET_PARAM_VLAN_PRIORITY:
1376 case ISCSI_NET_PARAM_VLAN_ENABLED:
1381 case ISCSI_HOST_PARAM:
1383 case ISCSI_HOST_PARAM_HWADDRESS:
1384 case ISCSI_HOST_PARAM_INITIATOR_NAME:
1385 case ISCSI_HOST_PARAM_PORT_STATE:
1386 case ISCSI_HOST_PARAM_PORT_SPEED:
1393 case ISCSI_PARAM_MAX_RECV_DLENGTH:
1394 case ISCSI_PARAM_MAX_XMIT_DLENGTH:
1395 case ISCSI_PARAM_HDRDGST_EN:
1396 case ISCSI_PARAM_DATADGST_EN:
1397 case ISCSI_PARAM_CONN_ADDRESS:
1398 case ISCSI_PARAM_CONN_PORT:
1399 case ISCSI_PARAM_EXP_STATSN:
1400 case ISCSI_PARAM_PERSISTENT_ADDRESS:
1401 case ISCSI_PARAM_PERSISTENT_PORT:
1402 case ISCSI_PARAM_PING_TMO:
1403 case ISCSI_PARAM_RECV_TMO:
1404 case ISCSI_PARAM_INITIAL_R2T_EN:
1405 case ISCSI_PARAM_MAX_R2T:
1406 case ISCSI_PARAM_IMM_DATA_EN:
1407 case ISCSI_PARAM_FIRST_BURST:
1408 case ISCSI_PARAM_MAX_BURST:
1409 case ISCSI_PARAM_PDU_INORDER_EN:
1410 case ISCSI_PARAM_DATASEQ_INORDER_EN:
1411 case ISCSI_PARAM_ERL:
1412 case ISCSI_PARAM_TARGET_NAME:
1413 case ISCSI_PARAM_TPGT:
1414 case ISCSI_PARAM_USERNAME:
1415 case ISCSI_PARAM_PASSWORD:
1416 case ISCSI_PARAM_USERNAME_IN:
1417 case ISCSI_PARAM_PASSWORD_IN:
1418 case ISCSI_PARAM_FAST_ABORT:
1419 case ISCSI_PARAM_ABORT_TMO:
1420 case ISCSI_PARAM_LU_RESET_TMO:
1421 case ISCSI_PARAM_IFACE_NAME:
1422 case ISCSI_PARAM_INITIATOR_NAME: