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 <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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@ -481,6 +481,7 @@ struct iscsi_tmr_req {
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bool task_reassign:1;
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u32 ref_cmd_sn;
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u32 exp_data_sn;
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struct iscsi_cmd *ref_cmd;
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struct iscsi_conn_recovery *conn_recovery;
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struct se_tmr_req *se_tmr_req;
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};
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@ -19,6 +19,7 @@
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******************************************************************************/
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#include <asm/unaligned.h>
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#include <scsi/scsi_device.h>
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#include <scsi/iscsi_proto.h>
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#include <target/target_core_base.h>
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#include <target/target_core_fabric.h>
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@ -61,7 +62,7 @@ u8 iscsit_tmr_abort_task(
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}
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se_tmr->ref_task_tag = hdr->rtt;
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se_tmr->ref_cmd = &ref_cmd->se_cmd;
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tmr_req->ref_cmd = ref_cmd;
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tmr_req->ref_cmd_sn = hdr->refcmdsn;
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tmr_req->exp_data_sn = hdr->exp_datasn;
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@ -121,7 +122,7 @@ u8 iscsit_tmr_task_reassign(
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struct iscsi_tmr_req *tmr_req = cmd->tmr_req;
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struct se_tmr_req *se_tmr = cmd->se_cmd.se_tmr_req;
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struct iscsi_tm *hdr = (struct iscsi_tm *) buf;
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int ret;
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int ret, ref_lun;
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pr_debug("Got TASK_REASSIGN TMR ITT: 0x%08x,"
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" RefTaskTag: 0x%08x, ExpDataSN: 0x%08x, CID: %hu\n",
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@ -155,9 +156,16 @@ u8 iscsit_tmr_task_reassign(
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return ISCSI_TMF_RSP_REJECTED;
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}
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ref_lun = scsilun_to_int(&hdr->lun);
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if (ref_lun != ref_cmd->se_cmd.orig_fe_lun) {
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pr_err("Unable to perform connection recovery for"
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" differing ref_lun: %d ref_cmd orig_fe_lun: %u\n",
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ref_lun, ref_cmd->se_cmd.orig_fe_lun);
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return ISCSI_TMF_RSP_REJECTED;
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}
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se_tmr->ref_task_tag = hdr->rtt;
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se_tmr->ref_cmd = &ref_cmd->se_cmd;
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se_tmr->ref_task_lun = get_unaligned_le64(&hdr->lun);
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tmr_req->ref_cmd = ref_cmd;
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tmr_req->ref_cmd_sn = hdr->refcmdsn;
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tmr_req->exp_data_sn = hdr->exp_datasn;
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tmr_req->conn_recovery = cr;
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@ -191,9 +199,7 @@ static int iscsit_task_reassign_complete_nop_out(
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struct iscsi_tmr_req *tmr_req,
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struct iscsi_conn *conn)
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{
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struct se_tmr_req *se_tmr = tmr_req->se_tmr_req;
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struct se_cmd *se_cmd = se_tmr->ref_cmd;
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struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
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struct iscsi_cmd *cmd = tmr_req->ref_cmd;
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struct iscsi_conn_recovery *cr;
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if (!cmd->cr) {
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@ -360,9 +366,7 @@ static int iscsit_task_reassign_complete_scsi_cmnd(
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struct iscsi_tmr_req *tmr_req,
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struct iscsi_conn *conn)
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{
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struct se_tmr_req *se_tmr = tmr_req->se_tmr_req;
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struct se_cmd *se_cmd = se_tmr->ref_cmd;
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struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
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struct iscsi_cmd *cmd = tmr_req->ref_cmd;
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struct iscsi_conn_recovery *cr;
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if (!cmd->cr) {
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@ -385,7 +389,7 @@ static int iscsit_task_reassign_complete_scsi_cmnd(
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list_add_tail(&cmd->i_conn_node, &conn->conn_cmd_list);
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spin_unlock_bh(&conn->cmd_lock);
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if (se_cmd->se_cmd_flags & SCF_SENT_CHECK_CONDITION) {
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if (cmd->se_cmd.se_cmd_flags & SCF_SENT_CHECK_CONDITION) {
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cmd->i_state = ISTATE_SEND_STATUS;
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iscsit_add_cmd_to_response_queue(cmd, conn, cmd->i_state);
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return 0;
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@ -411,17 +415,14 @@ static int iscsit_task_reassign_complete(
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struct iscsi_tmr_req *tmr_req,
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struct iscsi_conn *conn)
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{
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struct se_tmr_req *se_tmr = tmr_req->se_tmr_req;
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struct se_cmd *se_cmd;
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struct iscsi_cmd *cmd;
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int ret = 0;
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if (!se_tmr->ref_cmd) {
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if (!tmr_req->ref_cmd) {
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pr_err("TMR Request is missing a RefCmd struct iscsi_cmd.\n");
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return -1;
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}
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se_cmd = se_tmr->ref_cmd;
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cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
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cmd = tmr_req->ref_cmd;
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cmd->conn = conn;
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@ -547,9 +548,7 @@ int iscsit_task_reassign_prepare_write(
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struct iscsi_tmr_req *tmr_req,
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struct iscsi_conn *conn)
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{
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struct se_tmr_req *se_tmr = tmr_req->se_tmr_req;
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struct se_cmd *se_cmd = se_tmr->ref_cmd;
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struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
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struct iscsi_cmd *cmd = tmr_req->ref_cmd;
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struct iscsi_pdu *pdu = NULL;
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struct iscsi_r2t *r2t = NULL, *r2t_tmp;
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int first_incomplete_r2t = 1, i = 0;
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@ -782,14 +781,12 @@ int iscsit_check_task_reassign_expdatasn(
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struct iscsi_tmr_req *tmr_req,
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struct iscsi_conn *conn)
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{
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struct se_tmr_req *se_tmr = tmr_req->se_tmr_req;
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struct se_cmd *se_cmd = se_tmr->ref_cmd;
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struct iscsi_cmd *ref_cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
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struct iscsi_cmd *ref_cmd = tmr_req->ref_cmd;
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if (ref_cmd->iscsi_opcode != ISCSI_OP_SCSI_CMD)
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return 0;
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if (se_cmd->se_cmd_flags & SCF_SENT_CHECK_CONDITION)
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if (ref_cmd->se_cmd.se_cmd_flags & SCF_SENT_CHECK_CONDITION)
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return 0;
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if (ref_cmd->data_direction == DMA_NONE)
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@ -483,11 +483,8 @@ struct se_tmr_req {
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int call_transport;
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/* Reference to ITT that Task Mgmt should be performed */
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u32 ref_task_tag;
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/* 64-bit encoded SAM LUN from $FABRIC_MOD TMR header */
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u64 ref_task_lun;
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void *fabric_tmr_ptr;
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struct se_cmd *task_cmd;
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struct se_cmd *ref_cmd;
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struct se_device *tmr_dev;
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struct se_lun *tmr_lun;
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struct list_head tmr_list;
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