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scsi: qedf: Use FC rport as argument for qedf_initiate_tmf()
When sending a TMF we're only concerned with the rport and the LUN ID, so use struct fc_rport as argument for qedf_initiate_tmf(). Signed-off-by: Hannes Reinecke <hare@suse.de> Link: https://lore.kernel.org/r/20231002154328.43718-5-hare@suse.de Cc: Saurav Kashyap <skashyap@marvell.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Hannes Reinecke
Martin K. Petersen
parent
17865dc2ec
commit
ade4fb9457
3 changed files with 33 additions and 66 deletions
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@ -112,6 +112,7 @@ struct qedf_ioreq {
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#define QEDF_CMD_ERR_SCSI_DONE 0x5
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u8 io_req_flags;
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uint8_t tm_flags;
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u64 tm_lun;
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struct qedf_rport *fcport;
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#define QEDF_CMD_ST_INACTIVE 0
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#define QEDFC_CMD_ST_IO_ACTIVE 1
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@ -497,7 +498,7 @@ extern void qedf_process_warning_compl(struct qedf_ctx *qedf,
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struct fcoe_cqe *cqe, struct qedf_ioreq *io_req);
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extern void qedf_process_error_detect(struct qedf_ctx *qedf,
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struct fcoe_cqe *cqe, struct qedf_ioreq *io_req);
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extern void qedf_flush_active_ios(struct qedf_rport *fcport, int lun);
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extern void qedf_flush_active_ios(struct qedf_rport *fcport, u64 lun);
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extern void qedf_release_cmd(struct kref *ref);
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extern int qedf_initiate_abts(struct qedf_ioreq *io_req,
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bool return_scsi_cmd_on_abts);
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@ -522,7 +523,7 @@ extern int qedf_initiate_cleanup(struct qedf_ioreq *io_req,
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bool return_scsi_cmd_on_abts);
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extern void qedf_process_cleanup_compl(struct qedf_ctx *qedf,
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struct fcoe_cqe *cqe, struct qedf_ioreq *io_req);
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extern int qedf_initiate_tmf(struct scsi_cmnd *sc_cmd, u8 tm_flags);
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extern int qedf_initiate_tmf(struct fc_rport *rport, u64 lun, u8 tm_flags);
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extern void qedf_process_tmf_compl(struct qedf_ctx *qedf, struct fcoe_cqe *cqe,
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struct qedf_ioreq *io_req);
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extern void qedf_process_cqe(struct qedf_ctx *qedf, struct fcoe_cqe *cqe);
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@ -546,7 +546,7 @@ static int qedf_build_bd_list_from_sg(struct qedf_ioreq *io_req)
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}
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static void qedf_build_fcp_cmnd(struct qedf_ioreq *io_req,
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struct fcp_cmnd *fcp_cmnd)
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struct fcp_cmnd *fcp_cmnd)
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{
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struct scsi_cmnd *sc_cmd = io_req->sc_cmd;
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@ -554,8 +554,12 @@ static void qedf_build_fcp_cmnd(struct qedf_ioreq *io_req,
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memset(fcp_cmnd, 0, FCP_CMND_LEN);
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/* 8 bytes: SCSI LUN info */
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int_to_scsilun(sc_cmd->device->lun,
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(struct scsi_lun *)&fcp_cmnd->fc_lun);
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if (io_req->cmd_type == QEDF_TASK_MGMT_CMD)
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int_to_scsilun(io_req->tm_lun,
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(struct scsi_lun *)&fcp_cmnd->fc_lun);
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else
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int_to_scsilun(sc_cmd->device->lun,
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(struct scsi_lun *)&fcp_cmnd->fc_lun);
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/* 4 bytes: flag info */
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fcp_cmnd->fc_pri_ta = 0;
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@ -1095,7 +1099,7 @@ static void qedf_parse_fcp_rsp(struct qedf_ioreq *io_req,
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}
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/* The sense buffer can be NULL for TMF commands */
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if (sc_cmd->sense_buffer) {
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if (sc_cmd && sc_cmd->sense_buffer) {
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memset(sc_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
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if (fcp_sns_len)
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memcpy(sc_cmd->sense_buffer, sense_data,
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@ -1580,7 +1584,7 @@ static void qedf_flush_els_req(struct qedf_ctx *qedf,
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/* A value of -1 for lun is a wild card that means flush all
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* active SCSI I/Os for the target.
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*/
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void qedf_flush_active_ios(struct qedf_rport *fcport, int lun)
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void qedf_flush_active_ios(struct qedf_rport *fcport, u64 lun)
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{
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struct qedf_ioreq *io_req;
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struct qedf_ctx *qedf;
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@ -1768,10 +1772,6 @@ void qedf_flush_active_ios(struct qedf_rport *fcport, int lun)
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kref_put(&io_req->refcount, qedf_release_cmd);
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continue;
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}
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if (lun > -1) {
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if (io_req->lun != lun)
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continue;
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}
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/*
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* Use kref_get_unless_zero in the unlikely case the command
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@ -2281,7 +2281,7 @@ void qedf_process_cleanup_compl(struct qedf_ctx *qedf, struct fcoe_cqe *cqe,
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complete(&io_req->cleanup_done);
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}
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static int qedf_execute_tmf(struct qedf_rport *fcport, struct scsi_cmnd *sc_cmd,
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static int qedf_execute_tmf(struct qedf_rport *fcport, u64 tm_lun,
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uint8_t tm_flags)
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{
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struct qedf_ioreq *io_req;
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@ -2291,17 +2291,10 @@ static int qedf_execute_tmf(struct qedf_rport *fcport, struct scsi_cmnd *sc_cmd,
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int rc = 0;
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uint16_t xid;
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int tmo = 0;
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int lun = 0;
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unsigned long flags;
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struct fcoe_wqe *sqe;
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u16 sqe_idx;
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if (!sc_cmd) {
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QEDF_ERR(&qedf->dbg_ctx, "sc_cmd is NULL\n");
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return FAILED;
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}
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lun = (int)sc_cmd->device->lun;
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if (!test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags)) {
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QEDF_ERR(&(qedf->dbg_ctx), "fcport not offloaded\n");
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rc = FAILED;
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@ -2321,7 +2314,7 @@ static int qedf_execute_tmf(struct qedf_rport *fcport, struct scsi_cmnd *sc_cmd,
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qedf->target_resets++;
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/* Initialize rest of io_req fields */
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io_req->sc_cmd = sc_cmd;
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io_req->sc_cmd = NULL;
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io_req->fcport = fcport;
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io_req->cmd_type = QEDF_TASK_MGMT_CMD;
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@ -2335,6 +2328,7 @@ static int qedf_execute_tmf(struct qedf_rport *fcport, struct scsi_cmnd *sc_cmd,
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/* Default is to return a SCSI command when an error occurs */
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io_req->return_scsi_cmd_on_abts = false;
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io_req->tm_lun = tm_lun;
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/* Obtain exchange id */
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xid = io_req->xid;
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@ -2389,7 +2383,7 @@ static int qedf_execute_tmf(struct qedf_rport *fcport, struct scsi_cmnd *sc_cmd,
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if (tm_flags == FCP_TMF_LUN_RESET)
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qedf_flush_active_ios(fcport, lun);
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qedf_flush_active_ios(fcport, tm_lun);
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else
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qedf_flush_active_ios(fcport, -1);
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@ -2404,23 +2398,18 @@ static int qedf_execute_tmf(struct qedf_rport *fcport, struct scsi_cmnd *sc_cmd,
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return rc;
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}
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int qedf_initiate_tmf(struct scsi_cmnd *sc_cmd, u8 tm_flags)
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int qedf_initiate_tmf(struct fc_rport *rport, u64 lun, u8 tm_flags)
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{
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struct fc_rport *rport = starget_to_rport(scsi_target(sc_cmd->device));
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struct fc_rport_libfc_priv *rp = rport->dd_data;
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struct qedf_rport *fcport = (struct qedf_rport *)&rp[1];
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struct qedf_ctx *qedf;
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struct fc_lport *lport = shost_priv(sc_cmd->device->host);
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struct qedf_ctx *qedf = fcport->qedf;
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struct fc_lport *lport = rp->local_port;
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int rc = SUCCESS;
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int rval;
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struct qedf_ioreq *io_req = NULL;
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int ref_cnt = 0;
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struct fc_rport_priv *rdata = fcport->rdata;
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QEDF_ERR(NULL,
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"tm_flags 0x%x sc_cmd %p op = 0x%02x target_id = 0x%x lun=%d\n",
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tm_flags, sc_cmd, sc_cmd->cmd_len ? sc_cmd->cmnd[0] : 0xff,
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rport->scsi_target_id, (int)sc_cmd->device->lun);
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"tm_flags 0x%x target_id = 0x%x lun=%llu\n",
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tm_flags, rport->scsi_target_id, lun);
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if (!rdata || !kref_get_unless_zero(&rdata->kref)) {
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QEDF_ERR(NULL, "stale rport\n");
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@ -2431,33 +2420,10 @@ int qedf_initiate_tmf(struct scsi_cmnd *sc_cmd, u8 tm_flags)
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(tm_flags == FCP_TMF_TGT_RESET) ? "TARGET RESET" :
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"LUN RESET");
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if (qedf_priv(sc_cmd)->io_req) {
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io_req = qedf_priv(sc_cmd)->io_req;
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ref_cnt = kref_read(&io_req->refcount);
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QEDF_ERR(NULL,
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"orig io_req = %p xid = 0x%x ref_cnt = %d.\n",
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io_req, io_req->xid, ref_cnt);
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}
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rval = fc_remote_port_chkready(rport);
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if (rval) {
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QEDF_ERR(NULL, "device_reset rport not ready\n");
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rc = FAILED;
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goto tmf_err;
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}
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rc = fc_block_scsi_eh(sc_cmd);
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rc = fc_block_rport(rport);
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if (rc)
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goto tmf_err;
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if (!fcport) {
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QEDF_ERR(NULL, "device_reset: rport is NULL\n");
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rc = FAILED;
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goto tmf_err;
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}
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qedf = fcport->qedf;
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if (!qedf) {
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QEDF_ERR(NULL, "qedf is NULL.\n");
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rc = FAILED;
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@ -2494,7 +2460,7 @@ int qedf_initiate_tmf(struct scsi_cmnd *sc_cmd, u8 tm_flags)
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goto tmf_err;
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}
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rc = qedf_execute_tmf(fcport, sc_cmd, tm_flags);
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rc = qedf_execute_tmf(fcport, lun, tm_flags);
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tmf_err:
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kref_put(&rdata->kref, fc_rport_destroy);
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@ -2511,7 +2477,6 @@ void qedf_process_tmf_compl(struct qedf_ctx *qedf, struct fcoe_cqe *cqe,
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fcp_rsp = &cqe->cqe_info.rsp_info;
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qedf_parse_fcp_rsp(io_req, fcp_rsp);
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io_req->sc_cmd = NULL;
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complete(&io_req->tm_done);
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}
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@ -774,7 +774,7 @@ static int qedf_eh_abort(struct scsi_cmnd *sc_cmd)
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goto drop_rdata_kref;
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}
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rc = fc_block_scsi_eh(sc_cmd);
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rc = fc_block_rport(rport);
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if (rc)
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goto drop_rdata_kref;
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@ -858,18 +858,19 @@ static int qedf_eh_abort(struct scsi_cmnd *sc_cmd)
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static int qedf_eh_target_reset(struct scsi_cmnd *sc_cmd)
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{
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QEDF_ERR(NULL, "%d:0:%d:%lld: TARGET RESET Issued...",
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sc_cmd->device->host->host_no, sc_cmd->device->id,
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sc_cmd->device->lun);
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return qedf_initiate_tmf(sc_cmd, FCP_TMF_TGT_RESET);
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struct scsi_target *starget = scsi_target(sc_cmd->device);
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struct fc_rport *rport = starget_to_rport(starget);
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QEDF_ERR(NULL, "TARGET RESET Issued...");
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return qedf_initiate_tmf(rport, 0, FCP_TMF_TGT_RESET);
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}
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static int qedf_eh_device_reset(struct scsi_cmnd *sc_cmd)
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{
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QEDF_ERR(NULL, "%d:0:%d:%lld: LUN RESET Issued... ",
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sc_cmd->device->host->host_no, sc_cmd->device->id,
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sc_cmd->device->lun);
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return qedf_initiate_tmf(sc_cmd, FCP_TMF_LUN_RESET);
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struct fc_rport *rport = starget_to_rport(scsi_target(sc_cmd->device));
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QEDF_ERR(NULL, "LUN RESET Issued...\n");
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return qedf_initiate_tmf(rport, sc_cmd->device->lun, FCP_TMF_LUN_RESET);
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}
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bool qedf_wait_for_upload(struct qedf_ctx *qedf)
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