From: Christoph Hellwig Date: Sun, 20 May 2012 18:35:02 +0000 (-0400) Subject: target: move ref_cmd from the generic se_tmr_req into iscsi code X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=9f3eb93eaf5bd49051458fcb098af3fcf111d3d0;p=linux-beck.git target: move ref_cmd from the generic se_tmr_req into iscsi code Also remove the unused ref_task_lun field in struct se_tmr_req. (nab: Add missing TASK_REASSIGN ref_lun vs. ref_cmd orig_fe_lun checks in iscsit_tmr_task_reassign) Signed-off-by: Christoph Hellwig Signed-off-by: Nicholas Bellinger --- diff --git a/drivers/target/iscsi/iscsi_target_core.h b/drivers/target/iscsi/iscsi_target_core.h index 1c70144cdaf1..63a8ed26f119 100644 --- a/drivers/target/iscsi/iscsi_target_core.h +++ b/drivers/target/iscsi/iscsi_target_core.h @@ -481,6 +481,7 @@ struct iscsi_tmr_req { bool task_reassign:1; u32 ref_cmd_sn; u32 exp_data_sn; + struct iscsi_cmd *ref_cmd; struct iscsi_conn_recovery *conn_recovery; struct se_tmr_req *se_tmr_req; }; diff --git a/drivers/target/iscsi/iscsi_target_tmr.c b/drivers/target/iscsi/iscsi_target_tmr.c index f4e640b51fd1..1f7552986168 100644 --- a/drivers/target/iscsi/iscsi_target_tmr.c +++ b/drivers/target/iscsi/iscsi_target_tmr.c @@ -19,6 +19,7 @@ ******************************************************************************/ #include +#include #include #include #include @@ -61,7 +62,7 @@ u8 iscsit_tmr_abort_task( } se_tmr->ref_task_tag = hdr->rtt; - se_tmr->ref_cmd = &ref_cmd->se_cmd; + tmr_req->ref_cmd = ref_cmd; tmr_req->ref_cmd_sn = hdr->refcmdsn; tmr_req->exp_data_sn = hdr->exp_datasn; @@ -121,7 +122,7 @@ u8 iscsit_tmr_task_reassign( struct iscsi_tmr_req *tmr_req = cmd->tmr_req; struct se_tmr_req *se_tmr = cmd->se_cmd.se_tmr_req; struct iscsi_tm *hdr = (struct iscsi_tm *) buf; - int ret; + int ret, ref_lun; pr_debug("Got TASK_REASSIGN TMR ITT: 0x%08x," " RefTaskTag: 0x%08x, ExpDataSN: 0x%08x, CID: %hu\n", @@ -155,9 +156,16 @@ u8 iscsit_tmr_task_reassign( return ISCSI_TMF_RSP_REJECTED; } + ref_lun = scsilun_to_int(&hdr->lun); + if (ref_lun != ref_cmd->se_cmd.orig_fe_lun) { + pr_err("Unable to perform connection recovery for" + " differing ref_lun: %d ref_cmd orig_fe_lun: %u\n", + ref_lun, ref_cmd->se_cmd.orig_fe_lun); + return ISCSI_TMF_RSP_REJECTED; + } + se_tmr->ref_task_tag = hdr->rtt; - se_tmr->ref_cmd = &ref_cmd->se_cmd; - se_tmr->ref_task_lun = get_unaligned_le64(&hdr->lun); + tmr_req->ref_cmd = ref_cmd; tmr_req->ref_cmd_sn = hdr->refcmdsn; tmr_req->exp_data_sn = hdr->exp_datasn; tmr_req->conn_recovery = cr; @@ -191,9 +199,7 @@ static int iscsit_task_reassign_complete_nop_out( struct iscsi_tmr_req *tmr_req, struct iscsi_conn *conn) { - struct se_tmr_req *se_tmr = tmr_req->se_tmr_req; - struct se_cmd *se_cmd = se_tmr->ref_cmd; - struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); + struct iscsi_cmd *cmd = tmr_req->ref_cmd; struct iscsi_conn_recovery *cr; if (!cmd->cr) { @@ -360,9 +366,7 @@ static int iscsit_task_reassign_complete_scsi_cmnd( struct iscsi_tmr_req *tmr_req, struct iscsi_conn *conn) { - struct se_tmr_req *se_tmr = tmr_req->se_tmr_req; - struct se_cmd *se_cmd = se_tmr->ref_cmd; - struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); + struct iscsi_cmd *cmd = tmr_req->ref_cmd; struct iscsi_conn_recovery *cr; if (!cmd->cr) { @@ -385,7 +389,7 @@ static int iscsit_task_reassign_complete_scsi_cmnd( list_add_tail(&cmd->i_conn_node, &conn->conn_cmd_list); spin_unlock_bh(&conn->cmd_lock); - if (se_cmd->se_cmd_flags & SCF_SENT_CHECK_CONDITION) { + if (cmd->se_cmd.se_cmd_flags & SCF_SENT_CHECK_CONDITION) { cmd->i_state = ISTATE_SEND_STATUS; iscsit_add_cmd_to_response_queue(cmd, conn, cmd->i_state); return 0; @@ -411,17 +415,14 @@ static int iscsit_task_reassign_complete( struct iscsi_tmr_req *tmr_req, struct iscsi_conn *conn) { - struct se_tmr_req *se_tmr = tmr_req->se_tmr_req; - struct se_cmd *se_cmd; struct iscsi_cmd *cmd; int ret = 0; - if (!se_tmr->ref_cmd) { + if (!tmr_req->ref_cmd) { pr_err("TMR Request is missing a RefCmd struct iscsi_cmd.\n"); return -1; } - se_cmd = se_tmr->ref_cmd; - cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); + cmd = tmr_req->ref_cmd; cmd->conn = conn; @@ -547,9 +548,7 @@ int iscsit_task_reassign_prepare_write( struct iscsi_tmr_req *tmr_req, struct iscsi_conn *conn) { - struct se_tmr_req *se_tmr = tmr_req->se_tmr_req; - struct se_cmd *se_cmd = se_tmr->ref_cmd; - struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); + struct iscsi_cmd *cmd = tmr_req->ref_cmd; struct iscsi_pdu *pdu = NULL; struct iscsi_r2t *r2t = NULL, *r2t_tmp; int first_incomplete_r2t = 1, i = 0; @@ -782,14 +781,12 @@ int iscsit_check_task_reassign_expdatasn( struct iscsi_tmr_req *tmr_req, struct iscsi_conn *conn) { - struct se_tmr_req *se_tmr = tmr_req->se_tmr_req; - struct se_cmd *se_cmd = se_tmr->ref_cmd; - struct iscsi_cmd *ref_cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); + struct iscsi_cmd *ref_cmd = tmr_req->ref_cmd; if (ref_cmd->iscsi_opcode != ISCSI_OP_SCSI_CMD) return 0; - if (se_cmd->se_cmd_flags & SCF_SENT_CHECK_CONDITION) + if (ref_cmd->se_cmd.se_cmd_flags & SCF_SENT_CHECK_CONDITION) return 0; if (ref_cmd->data_direction == DMA_NONE) diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h index 6e99dc5a5f6b..15039dd9de18 100644 --- a/include/target/target_core_base.h +++ b/include/target/target_core_base.h @@ -483,11 +483,8 @@ struct se_tmr_req { int call_transport; /* Reference to ITT that Task Mgmt should be performed */ u32 ref_task_tag; - /* 64-bit encoded SAM LUN from $FABRIC_MOD TMR header */ - u64 ref_task_lun; void *fabric_tmr_ptr; struct se_cmd *task_cmd; - struct se_cmd *ref_cmd; struct se_device *tmr_dev; struct se_lun *tmr_lun; struct list_head tmr_list;