X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Fscsi%2Flibiscsi.c;fp=drivers%2Fscsi%2Flibiscsi.c;h=5884cd26d53af32ce9fcaf0a8e2d4e12d46dd90a;hb=16c70f8c1b54b61c3b951b6fb220df250fe09b32;hp=2673a11a9495ef2297ada1591cf65cfcbd94c0a1;hpb=4e76c8a9fa413ccc09d3f7f664183dcce3555d57;p=linux-2.6.git diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c index 2673a11a9..5884cd26d 100644 --- a/drivers/scsi/libiscsi.c +++ b/drivers/scsi/libiscsi.c @@ -189,6 +189,7 @@ static void iscsi_complete_command(struct iscsi_session *session, { struct scsi_cmnd *sc = ctask->sc; + ctask->state = ISCSI_TASK_COMPLETED; ctask->sc = NULL; list_del_init(&ctask->running); __kfifo_put(session->cmdpool.queue, (void*)&ctask, sizeof(void*)); @@ -275,6 +276,25 @@ out: return rc; } +static void iscsi_tmf_rsp(struct iscsi_conn *conn, struct iscsi_hdr *hdr) +{ + struct iscsi_tm_rsp *tmf = (struct iscsi_tm_rsp *)hdr; + + conn->exp_statsn = be32_to_cpu(hdr->statsn) + 1; + conn->tmfrsp_pdus_cnt++; + + if (conn->tmabort_state != TMABORT_INITIAL) + return; + + if (tmf->response == ISCSI_TMF_RSP_COMPLETE) + conn->tmabort_state = TMABORT_SUCCESS; + else if (tmf->response == ISCSI_TMF_RSP_NO_TASK) + conn->tmabort_state = TMABORT_NOT_FOUND; + else + conn->tmabort_state = TMABORT_FAILED; + wake_up(&conn->ehwait); +} + /** * __iscsi_complete_pdu - complete pdu * @conn: iscsi conn @@ -340,6 +360,10 @@ int __iscsi_complete_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr, switch(opcode) { case ISCSI_OP_LOGOUT_RSP: + if (datalen) { + rc = ISCSI_ERR_PROTO; + break; + } conn->exp_statsn = be32_to_cpu(hdr->statsn) + 1; /* fall through */ case ISCSI_OP_LOGIN_RSP: @@ -348,7 +372,8 @@ int __iscsi_complete_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr, * login related PDU's exp_statsn is handled in * userspace */ - rc = iscsi_recv_pdu(conn->cls_conn, hdr, data, datalen); + if (iscsi_recv_pdu(conn->cls_conn, hdr, data, datalen)) + rc = ISCSI_ERR_CONN_FAILED; list_del(&mtask->running); if (conn->login_mtask != mtask) __kfifo_put(session->mgmtpool.queue, @@ -360,25 +385,17 @@ int __iscsi_complete_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr, break; } - conn->exp_statsn = be32_to_cpu(hdr->statsn) + 1; - conn->tmfrsp_pdus_cnt++; - if (conn->tmabort_state == TMABORT_INITIAL) { - conn->tmabort_state = - ((struct iscsi_tm_rsp *)hdr)-> - response == ISCSI_TMF_RSP_COMPLETE ? - TMABORT_SUCCESS:TMABORT_FAILED; - /* unblock eh_abort() */ - wake_up(&conn->ehwait); - } + iscsi_tmf_rsp(conn, hdr); break; case ISCSI_OP_NOOP_IN: - if (hdr->ttt != ISCSI_RESERVED_TAG) { + if (hdr->ttt != ISCSI_RESERVED_TAG || datalen) { rc = ISCSI_ERR_PROTO; break; } conn->exp_statsn = be32_to_cpu(hdr->statsn) + 1; - rc = iscsi_recv_pdu(conn->cls_conn, hdr, data, datalen); + if (iscsi_recv_pdu(conn->cls_conn, hdr, data, datalen)) + rc = ISCSI_ERR_CONN_FAILED; list_del(&mtask->running); if (conn->login_mtask != mtask) __kfifo_put(session->mgmtpool.queue, @@ -391,14 +408,21 @@ int __iscsi_complete_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr, } else if (itt == ISCSI_RESERVED_TAG) { switch(opcode) { case ISCSI_OP_NOOP_IN: - if (!datalen) { - rc = iscsi_check_assign_cmdsn(session, - (struct iscsi_nopin*)hdr); - if (!rc && hdr->ttt != ISCSI_RESERVED_TAG) - rc = iscsi_recv_pdu(conn->cls_conn, - hdr, NULL, 0); - } else + if (datalen) { rc = ISCSI_ERR_PROTO; + break; + } + + rc = iscsi_check_assign_cmdsn(session, + (struct iscsi_nopin*)hdr); + if (rc) + break; + + if (hdr->ttt == ISCSI_RESERVED_TAG) + break; + + if (iscsi_recv_pdu(conn->cls_conn, hdr, NULL, 0)) + rc = ISCSI_ERR_CONN_FAILED; break; case ISCSI_OP_REJECT: /* we need sth like iscsi_reject_rsp()*/ @@ -568,20 +592,24 @@ static int iscsi_data_xmit(struct iscsi_conn *conn) } /* process command queue */ - while (__kfifo_get(conn->xmitqueue, (void*)&conn->ctask, - sizeof(void*))) { + spin_lock_bh(&conn->session->lock); + while (!list_empty(&conn->xmitqueue)) { /* * iscsi tcp may readd the task to the xmitqueue to send * write data */ - spin_lock_bh(&conn->session->lock); - if (list_empty(&conn->ctask->running)) - list_add_tail(&conn->ctask->running, &conn->run_list); + conn->ctask = list_entry(conn->xmitqueue.next, + struct iscsi_cmd_task, running); + conn->ctask->state = ISCSI_TASK_RUNNING; + list_move_tail(conn->xmitqueue.next, &conn->run_list); spin_unlock_bh(&conn->session->lock); + rc = tt->xmit_cmd_task(conn, conn->ctask); if (rc) goto again; + spin_lock_bh(&conn->session->lock); } + spin_unlock_bh(&conn->session->lock); /* done with this ctask */ conn->ctask = NULL; @@ -691,6 +719,7 @@ int iscsi_queuecommand(struct scsi_cmnd *sc, void (*done)(struct scsi_cmnd *)) sc->SCp.phase = session->age; sc->SCp.ptr = (char *)ctask; + ctask->state = ISCSI_TASK_PENDING; ctask->mtask = NULL; ctask->conn = conn; ctask->sc = sc; @@ -700,7 +729,7 @@ int iscsi_queuecommand(struct scsi_cmnd *sc, void (*done)(struct scsi_cmnd *)) session->tt->init_cmd_task(ctask); - __kfifo_put(conn->xmitqueue, (void*)&ctask, sizeof(void*)); + list_add_tail(&ctask->running, &conn->xmitqueue); debug_scsi( "ctask enq [%s cid %d sc %lx itt 0x%x len %d cmdsn %d win %d]\n", sc->sc_data_direction == DMA_TO_DEVICE ? "write" : "read", @@ -977,31 +1006,27 @@ static int iscsi_exec_abort_task(struct scsi_cmnd *sc, /* * xmit mutex and session lock must be held */ -#define iscsi_remove_task(tasktype) \ -static struct iscsi_##tasktype * \ -iscsi_remove_##tasktype(struct kfifo *fifo, uint32_t itt) \ -{ \ - int i, nr_tasks = __kfifo_len(fifo) / sizeof(void*); \ - struct iscsi_##tasktype *task; \ - \ - debug_scsi("searching %d tasks\n", nr_tasks); \ - \ - for (i = 0; i < nr_tasks; i++) { \ - __kfifo_get(fifo, (void*)&task, sizeof(void*)); \ - debug_scsi("check task %u\n", task->itt); \ - \ - if (task->itt == itt) { \ - debug_scsi("matched task\n"); \ - return task; \ - } \ - \ - __kfifo_put(fifo, (void*)&task, sizeof(void*)); \ - } \ - return NULL; \ -} +static struct iscsi_mgmt_task * +iscsi_remove_mgmt_task(struct kfifo *fifo, uint32_t itt) +{ + int i, nr_tasks = __kfifo_len(fifo) / sizeof(void*); + struct iscsi_mgmt_task *task; + + debug_scsi("searching %d tasks\n", nr_tasks); + + for (i = 0; i < nr_tasks; i++) { + __kfifo_get(fifo, (void*)&task, sizeof(void*)); + debug_scsi("check task %u\n", task->itt); -iscsi_remove_task(mgmt_task); -iscsi_remove_task(cmd_task); + if (task->itt == itt) { + debug_scsi("matched task\n"); + return task; + } + + __kfifo_put(fifo, (void*)&task, sizeof(void*)); + } + return NULL; +} static int iscsi_ctask_mtask_cleanup(struct iscsi_cmd_task *ctask) { @@ -1027,12 +1052,13 @@ static void fail_command(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask, { struct scsi_cmnd *sc; - conn->session->tt->cleanup_cmd_task(conn, ctask); - iscsi_ctask_mtask_cleanup(ctask); - sc = ctask->sc; if (!sc) return; + + conn->session->tt->cleanup_cmd_task(conn, ctask); + iscsi_ctask_mtask_cleanup(ctask); + sc->result = err; sc->resid = sc->request_bufflen; iscsi_complete_command(conn->session, ctask); @@ -1043,7 +1069,6 @@ int iscsi_eh_abort(struct scsi_cmnd *sc) struct iscsi_cmd_task *ctask = (struct iscsi_cmd_task *)sc->SCp.ptr; struct iscsi_conn *conn = ctask->conn; struct iscsi_session *session = conn->session; - struct iscsi_cmd_task *pending_ctask; int rc; conn->eh_abort_cnt++; @@ -1061,8 +1086,11 @@ int iscsi_eh_abort(struct scsi_cmnd *sc) goto failed; /* ctask completed before time out */ - if (!ctask->sc) - goto success; + if (!ctask->sc) { + spin_unlock_bh(&session->lock); + debug_scsi("sc completed while abort in progress\n"); + goto success_rel_mutex; + } /* what should we do here ? */ if (conn->ctask == ctask) { @@ -1071,17 +1099,8 @@ int iscsi_eh_abort(struct scsi_cmnd *sc) goto failed; } - /* check for the easy pending cmd abort */ - pending_ctask = iscsi_remove_cmd_task(conn->xmitqueue, ctask->itt); - if (pending_ctask) { - /* iscsi_tcp queues write transfers on the xmitqueue */ - if (list_empty(&pending_ctask->running)) { - debug_scsi("found pending task\n"); - goto success; - } else - __kfifo_put(conn->xmitqueue, (void*)&pending_ctask, - sizeof(void*)); - } + if (ctask->state == ISCSI_TASK_PENDING) + goto success_cleanup; conn->tmabort_state = TMABORT_INITIAL; @@ -1089,25 +1108,31 @@ int iscsi_eh_abort(struct scsi_cmnd *sc) rc = iscsi_exec_abort_task(sc, ctask); spin_lock_bh(&session->lock); - iscsi_ctask_mtask_cleanup(ctask); if (rc || sc->SCp.phase != session->age || session->state != ISCSI_STATE_LOGGED_IN) goto failed; + iscsi_ctask_mtask_cleanup(ctask); - /* ctask completed before tmf abort response */ - if (!ctask->sc) { - debug_scsi("sc completed while abort in progress\n"); - goto success; - } - - if (conn->tmabort_state != TMABORT_SUCCESS) { + switch (conn->tmabort_state) { + case TMABORT_SUCCESS: + goto success_cleanup; + case TMABORT_NOT_FOUND: + if (!ctask->sc) { + /* ctask completed before tmf abort response */ + spin_unlock_bh(&session->lock); + debug_scsi("sc completed while abort in progress\n"); + goto success_rel_mutex; + } + /* fall through */ + default: + /* timedout or failed */ spin_unlock_bh(&session->lock); iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED); spin_lock_bh(&session->lock); goto failed; } -success: +success_cleanup: debug_scsi("abort success [sc %lx itt 0x%x]\n", (long)sc, ctask->itt); spin_unlock_bh(&session->lock); @@ -1121,6 +1146,7 @@ success: spin_unlock(&session->lock); write_unlock_bh(conn->recv_lock); +success_rel_mutex: mutex_unlock(&conn->xmitmutex); return SUCCESS; @@ -1263,6 +1289,7 @@ iscsi_session_setup(struct iscsi_transport *iscsit, if (cmd_task_size) ctask->dd_data = &ctask[1]; ctask->itt = cmd_i; + INIT_LIST_HEAD(&ctask->running); } spin_lock_init(&session->lock); @@ -1282,18 +1309,24 @@ iscsi_session_setup(struct iscsi_transport *iscsit, if (mgmt_task_size) mtask->dd_data = &mtask[1]; mtask->itt = ISCSI_MGMT_ITT_OFFSET + cmd_i; + INIT_LIST_HEAD(&mtask->running); } if (scsi_add_host(shost, NULL)) goto add_host_fail; + if (!try_module_get(iscsit->owner)) + goto cls_session_fail; + cls_session = iscsi_create_session(shost, iscsit, 0); if (!cls_session) - goto cls_session_fail; + goto module_put; *(unsigned long*)shost->hostdata = (unsigned long)cls_session; return cls_session; +module_put: + module_put(iscsit->owner); cls_session_fail: scsi_remove_host(shost); add_host_fail: @@ -1317,14 +1350,18 @@ void iscsi_session_teardown(struct iscsi_cls_session *cls_session) { struct Scsi_Host *shost = iscsi_session_to_shost(cls_session); struct iscsi_session *session = iscsi_hostdata(shost->hostdata); + struct module *owner = cls_session->transport->owner; scsi_remove_host(shost); iscsi_pool_free(&session->mgmtpool, (void**)session->mgmt_cmds); iscsi_pool_free(&session->cmdpool, (void**)session->cmds); + kfree(session->targetname); + iscsi_destroy_session(cls_session); scsi_host_put(shost); + module_put(owner); } EXPORT_SYMBOL_GPL(iscsi_session_teardown); @@ -1355,12 +1392,7 @@ iscsi_conn_setup(struct iscsi_cls_session *cls_session, uint32_t conn_idx) conn->tmabort_state = TMABORT_INITIAL; INIT_LIST_HEAD(&conn->run_list); INIT_LIST_HEAD(&conn->mgmt_run_list); - - /* initialize general xmit PDU commands queue */ - conn->xmitqueue = kfifo_alloc(session->cmds_max * sizeof(void*), - GFP_KERNEL, NULL); - if (conn->xmitqueue == ERR_PTR(-ENOMEM)) - goto xmitqueue_alloc_fail; + INIT_LIST_HEAD(&conn->xmitqueue); /* initialize general immediate & non-immediate PDU commands queue */ conn->immqueue = kfifo_alloc(session->mgmtpool_max * sizeof(void*), @@ -1388,7 +1420,7 @@ iscsi_conn_setup(struct iscsi_cls_session *cls_session, uint32_t conn_idx) data = kmalloc(DEFAULT_MAX_RECV_DATA_SEGMENT_LENGTH, GFP_KERNEL); if (!data) goto login_mtask_data_alloc_fail; - conn->login_mtask->data = data; + conn->login_mtask->data = conn->data = data; init_timer(&conn->tmabort_timer); mutex_init(&conn->xmitmutex); @@ -1404,8 +1436,6 @@ login_mtask_alloc_fail: mgmtqueue_alloc_fail: kfifo_free(conn->immqueue); immqueue_alloc_fail: - kfifo_free(conn->xmitqueue); -xmitqueue_alloc_fail: iscsi_destroy_conn(cls_conn); return NULL; } @@ -1426,12 +1456,6 @@ void iscsi_conn_teardown(struct iscsi_cls_conn *cls_conn) set_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx); mutex_lock(&conn->xmitmutex); - if (conn->c_stage == ISCSI_CONN_INITIAL_STAGE) { - if (session->tt->suspend_conn_recv) - session->tt->suspend_conn_recv(conn); - - session->tt->terminate_conn(conn); - } spin_lock_bh(&session->lock); conn->c_stage = ISCSI_CONN_CLEANUP_WAIT; @@ -1468,7 +1492,8 @@ void iscsi_conn_teardown(struct iscsi_cls_conn *cls_conn) } spin_lock_bh(&session->lock); - kfree(conn->login_mtask->data); + kfree(conn->data); + kfree(conn->persistent_address); __kfifo_put(session->mgmtpool.queue, (void*)&conn->login_mtask, sizeof(void*)); list_del(&conn->item); @@ -1483,7 +1508,6 @@ void iscsi_conn_teardown(struct iscsi_cls_conn *cls_conn) session->cmdsn = session->max_cmdsn = session->exp_cmdsn = 1; spin_unlock_bh(&session->lock); - kfifo_free(conn->xmitqueue); kfifo_free(conn->immqueue); kfifo_free(conn->mgmtqueue); @@ -1566,7 +1590,7 @@ static void fail_all_commands(struct iscsi_conn *conn) struct iscsi_cmd_task *ctask, *tmp; /* flush pending */ - while (__kfifo_get(conn->xmitqueue, (void*)&ctask, sizeof(void*))) { + list_for_each_entry_safe(ctask, tmp, &conn->xmitqueue, running) { debug_scsi("failing pending sc %p itt 0x%x\n", ctask->sc, ctask->itt); fail_command(conn, ctask, DID_BUS_BUSY << 16); @@ -1609,8 +1633,9 @@ static void iscsi_start_session_recovery(struct iscsi_session *session, set_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx); spin_unlock_bh(&session->lock); - if (session->tt->suspend_conn_recv) - session->tt->suspend_conn_recv(conn); + write_lock_bh(conn->recv_lock); + set_bit(ISCSI_SUSPEND_BIT, &conn->suspend_rx); + write_unlock_bh(conn->recv_lock); mutex_lock(&conn->xmitmutex); /* @@ -1629,7 +1654,6 @@ static void iscsi_start_session_recovery(struct iscsi_session *session, } } - session->tt->terminate_conn(conn); /* * flush queues. */ @@ -1697,6 +1721,185 @@ int iscsi_conn_bind(struct iscsi_cls_session *cls_session, } EXPORT_SYMBOL_GPL(iscsi_conn_bind); + +int iscsi_set_param(struct iscsi_cls_conn *cls_conn, + enum iscsi_param param, char *buf, int buflen) +{ + struct iscsi_conn *conn = cls_conn->dd_data; + struct iscsi_session *session = conn->session; + uint32_t value; + + switch(param) { + case ISCSI_PARAM_MAX_RECV_DLENGTH: + sscanf(buf, "%d", &conn->max_recv_dlength); + break; + case ISCSI_PARAM_MAX_XMIT_DLENGTH: + sscanf(buf, "%d", &conn->max_xmit_dlength); + break; + case ISCSI_PARAM_HDRDGST_EN: + sscanf(buf, "%d", &conn->hdrdgst_en); + break; + case ISCSI_PARAM_DATADGST_EN: + sscanf(buf, "%d", &conn->datadgst_en); + break; + case ISCSI_PARAM_INITIAL_R2T_EN: + sscanf(buf, "%d", &session->initial_r2t_en); + break; + case ISCSI_PARAM_MAX_R2T: + sscanf(buf, "%d", &session->max_r2t); + break; + case ISCSI_PARAM_IMM_DATA_EN: + sscanf(buf, "%d", &session->imm_data_en); + break; + case ISCSI_PARAM_FIRST_BURST: + sscanf(buf, "%d", &session->first_burst); + break; + case ISCSI_PARAM_MAX_BURST: + sscanf(buf, "%d", &session->max_burst); + break; + case ISCSI_PARAM_PDU_INORDER_EN: + sscanf(buf, "%d", &session->pdu_inorder_en); + break; + case ISCSI_PARAM_DATASEQ_INORDER_EN: + sscanf(buf, "%d", &session->dataseq_inorder_en); + break; + case ISCSI_PARAM_ERL: + sscanf(buf, "%d", &session->erl); + break; + case ISCSI_PARAM_IFMARKER_EN: + sscanf(buf, "%d", &value); + BUG_ON(value); + break; + case ISCSI_PARAM_OFMARKER_EN: + sscanf(buf, "%d", &value); + BUG_ON(value); + break; + case ISCSI_PARAM_EXP_STATSN: + sscanf(buf, "%u", &conn->exp_statsn); + break; + case ISCSI_PARAM_TARGET_NAME: + /* this should not change between logins */ + if (session->targetname) + break; + + session->targetname = kstrdup(buf, GFP_KERNEL); + if (!session->targetname) + return -ENOMEM; + break; + case ISCSI_PARAM_TPGT: + sscanf(buf, "%d", &session->tpgt); + break; + case ISCSI_PARAM_PERSISTENT_PORT: + sscanf(buf, "%d", &conn->persistent_port); + break; + case ISCSI_PARAM_PERSISTENT_ADDRESS: + /* + * this is the address returned in discovery so it should + * not change between logins. + */ + if (conn->persistent_address) + break; + + conn->persistent_address = kstrdup(buf, GFP_KERNEL); + if (!conn->persistent_address) + return -ENOMEM; + break; + default: + return -ENOSYS; + } + + return 0; +} +EXPORT_SYMBOL_GPL(iscsi_set_param); + +int iscsi_session_get_param(struct iscsi_cls_session *cls_session, + enum iscsi_param param, char *buf) +{ + struct Scsi_Host *shost = iscsi_session_to_shost(cls_session); + struct iscsi_session *session = iscsi_hostdata(shost->hostdata); + int len; + + switch(param) { + case ISCSI_PARAM_INITIAL_R2T_EN: + len = sprintf(buf, "%d\n", session->initial_r2t_en); + break; + case ISCSI_PARAM_MAX_R2T: + len = sprintf(buf, "%hu\n", session->max_r2t); + break; + case ISCSI_PARAM_IMM_DATA_EN: + len = sprintf(buf, "%d\n", session->imm_data_en); + break; + case ISCSI_PARAM_FIRST_BURST: + len = sprintf(buf, "%u\n", session->first_burst); + break; + case ISCSI_PARAM_MAX_BURST: + len = sprintf(buf, "%u\n", session->max_burst); + break; + case ISCSI_PARAM_PDU_INORDER_EN: + len = sprintf(buf, "%d\n", session->pdu_inorder_en); + break; + case ISCSI_PARAM_DATASEQ_INORDER_EN: + len = sprintf(buf, "%d\n", session->dataseq_inorder_en); + break; + case ISCSI_PARAM_ERL: + len = sprintf(buf, "%d\n", session->erl); + break; + case ISCSI_PARAM_TARGET_NAME: + len = sprintf(buf, "%s\n", session->targetname); + break; + case ISCSI_PARAM_TPGT: + len = sprintf(buf, "%d\n", session->tpgt); + break; + default: + return -ENOSYS; + } + + return len; +} +EXPORT_SYMBOL_GPL(iscsi_session_get_param); + +int iscsi_conn_get_param(struct iscsi_cls_conn *cls_conn, + enum iscsi_param param, char *buf) +{ + struct iscsi_conn *conn = cls_conn->dd_data; + int len; + + switch(param) { + case ISCSI_PARAM_MAX_RECV_DLENGTH: + len = sprintf(buf, "%u\n", conn->max_recv_dlength); + break; + case ISCSI_PARAM_MAX_XMIT_DLENGTH: + len = sprintf(buf, "%u\n", conn->max_xmit_dlength); + break; + case ISCSI_PARAM_HDRDGST_EN: + len = sprintf(buf, "%d\n", conn->hdrdgst_en); + break; + case ISCSI_PARAM_DATADGST_EN: + len = sprintf(buf, "%d\n", conn->datadgst_en); + break; + case ISCSI_PARAM_IFMARKER_EN: + len = sprintf(buf, "%d\n", conn->ifmarker_en); + break; + case ISCSI_PARAM_OFMARKER_EN: + len = sprintf(buf, "%d\n", conn->ofmarker_en); + break; + case ISCSI_PARAM_EXP_STATSN: + len = sprintf(buf, "%u\n", conn->exp_statsn); + break; + case ISCSI_PARAM_PERSISTENT_PORT: + len = sprintf(buf, "%d\n", conn->persistent_port); + break; + case ISCSI_PARAM_PERSISTENT_ADDRESS: + len = sprintf(buf, "%s\n", conn->persistent_address); + break; + default: + return -ENOSYS; + } + + return len; +} +EXPORT_SYMBOL_GPL(iscsi_conn_get_param); + MODULE_AUTHOR("Mike Christie"); MODULE_DESCRIPTION("iSCSI library functions"); MODULE_LICENSE("GPL");