From 32abbedaafde5a0c1edfd07369dde73a4fda2554 Mon Sep 17 00:00:00 2001 From: "Matthew R. Ochs" Date: Wed, 28 Jun 2017 12:14:30 -0500 Subject: scsi: cxlflash: Update send_tmf() parameters The current send_tmf() implementation is based on the caller providing a SCSI command reference. In reality all that is needed is a SCSI device reference as the routine uses a private command. Refactor send_tmf() to pass the private adapter configuration reference and a SCSI device reference. As a nice side effect, this will ease the burden of converting caller routines to be based solely off of a SCSI device reference. Signed-off-by: Matthew R. Ochs Reviewed-by: Hannes Reinecke Signed-off-by: Martin K. Petersen --- drivers/scsi/cxlflash/main.c | 27 +++++++++++++-------------- 1 file changed, 13 insertions(+), 14 deletions(-) (limited to 'drivers/scsi') diff --git a/drivers/scsi/cxlflash/main.c b/drivers/scsi/cxlflash/main.c index 455564fb6c4d..7054e11f732a 100644 --- a/drivers/scsi/cxlflash/main.c +++ b/drivers/scsi/cxlflash/main.c @@ -459,21 +459,20 @@ static u32 cmd_to_target_hwq(struct Scsi_Host *host, struct scsi_cmnd *scp, /** * send_tmf() - sends a Task Management Function (TMF) - * @afu: AFU to checkout from. - * @scp: SCSI command from stack describing target. + * @cfg: Internal structure associated with the host. + * @sdev: SCSI device destined for TMF. * @tmfcmd: TMF command to send. * * Return: * 0 on success, SCSI_MLQUEUE_HOST_BUSY or -errno on failure */ -static int send_tmf(struct afu *afu, struct scsi_cmnd *scp, u64 tmfcmd) +static int send_tmf(struct cxlflash_cfg *cfg, struct scsi_device *sdev, + u64 tmfcmd) { - struct Scsi_Host *host = scp->device->host; - struct cxlflash_cfg *cfg = shost_priv(host); + struct afu *afu = cfg->afu; struct afu_cmd *cmd = NULL; struct device *dev = &cfg->dev->dev; - int hwq_index = cmd_to_target_hwq(host, scp, afu); - struct hwq *hwq = get_hwq(afu, hwq_index); + struct hwq *hwq = get_hwq(afu, PRIMARY_HWQ); char *buf = NULL; ulong lock_flags; int rc = 0; @@ -500,12 +499,12 @@ static int send_tmf(struct afu *afu, struct scsi_cmnd *scp, u64 tmfcmd) cmd->parent = afu; cmd->cmd_tmf = true; - cmd->hwq_index = hwq_index; + cmd->hwq_index = hwq->index; cmd->rcb.ctx_id = hwq->ctx_hndl; cmd->rcb.msi = SISL_MSI_RRQ_UPDATED; - cmd->rcb.port_sel = CHAN2PORTMASK(scp->device->channel); - cmd->rcb.lun_id = lun_to_lunid(scp->device->lun); + cmd->rcb.port_sel = CHAN2PORTMASK(sdev->channel); + cmd->rcb.lun_id = lun_to_lunid(sdev->lun); cmd->rcb.req_flags = (SISL_REQ_FLAGS_PORT_LUN_ID | SISL_REQ_FLAGS_SUP_UNDERRUN | SISL_REQ_FLAGS_TMF_CMD); @@ -2430,15 +2429,15 @@ out: static int cxlflash_eh_device_reset_handler(struct scsi_cmnd *scp) { int rc = SUCCESS; - struct Scsi_Host *host = scp->device->host; + struct scsi_device *sdev = scp->device; + struct Scsi_Host *host = sdev->host; struct cxlflash_cfg *cfg = shost_priv(host); struct device *dev = &cfg->dev->dev; - struct afu *afu = cfg->afu; int rcr = 0; dev_dbg(dev, "%s: (scp=%p) %d/%d/%d/%llu " "cdb=(%08x-%08x-%08x-%08x)\n", __func__, scp, host->host_no, - scp->device->channel, scp->device->id, scp->device->lun, + sdev->channel, sdev->id, sdev->lun, get_unaligned_be32(&((u32 *)scp->cmnd)[0]), get_unaligned_be32(&((u32 *)scp->cmnd)[1]), get_unaligned_be32(&((u32 *)scp->cmnd)[2]), @@ -2447,7 +2446,7 @@ static int cxlflash_eh_device_reset_handler(struct scsi_cmnd *scp) retry: switch (cfg->state) { case STATE_NORMAL: - rcr = send_tmf(afu, scp, TMF_LUN_RESET); + rcr = send_tmf(cfg, sdev, TMF_LUN_RESET); if (unlikely(rcr)) rc = FAILED; break; -- cgit v1.2.3-59-g8ed1b