[PATCH 039/117] cxlflash: Convert to the scsi_status union

Bart Van Assche
2021-04-20T00:09:55Z

Cc: Manoj N. Kumar <manoj@linux.ibm.com>
Cc: Matthew R. Ochs <mrochs@linux.ibm.com>
Cc: Uma Krishnan <ukrishn@linux.ibm.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
drivers/scsi/cxlflash/main.c | 32 +++++++++++++++----------------
drivers/scsi/cxlflash/superpipe.c | 16 ++++++++--------
2 files changed, 24 insertions(+), 24 deletions(-)

diff --git a/drivers/scsi/cxlflash/main.c b/drivers/scsi/cxlflash/main.c
index dc36531d589e..8c5c28f29911 100644
--- a/drivers/scsi/cxlflash/main.c
+++ b/drivers/scsi/cxlflash/main.c
@@ -59,7 +59,7 @@ static void process_cmd_err(struct afu_cmd *cmd, struct scsi_cmnd *scp)
if (ioasa->rc.flags & SISL_RC_FLAGS_OVERRUN) {
dev_dbg(dev, "%s: cmd underrun cmd = %p scp = %p\n",
__func__, cmd, scp);
- scp->result = (DID_ERROR << 16);
+ scp->status.combined = (DID_ERROR << 16);
}

dev_dbg(dev, "%s: cmd failed afu_rc=%02x scsi_rc=%02x fc_rc=%02x "
@@ -72,20 +72,20 @@ static void process_cmd_err(struct afu_cmd *cmd, struct scsi_cmnd *scp)
if (ioasa->rc.flags & SISL_RC_FLAGS_SENSE_VALID) {
memcpy(scp->sense_buffer, ioasa->sense_data,
SISL_SENSE_DATA_LEN);
- scp->result = ioasa->rc.scsi_rc;
+ scp->status.combined = ioasa->rc.scsi_rc;
} else
- scp->result = ioasa->rc.scsi_rc | (DID_ERROR << 16);
+ scp->status.combined = ioasa->rc.scsi_rc | (DID_ERROR << 16);
}

/*
- * We encountered an error. Set scp->result based on nature
+ * We encountered an error. Set scp->status based on nature
* of error.
*/
if (ioasa->rc.fc_rc) {
/* We have an FC status */
switch (ioasa->rc.fc_rc) {
case SISL_FC_RC_LINKDOWN:
- scp->result = (DID_REQUEUE << 16);
+ scp->status.combined = (DID_REQUEUE << 16);
break;
case SISL_FC_RC_RESID:
/* This indicates an FCP resid underrun */
@@ -95,7 +95,7 @@ static void process_cmd_err(struct afu_cmd *cmd, struct scsi_cmnd *scp)
* If not then we must handle it here.
* This is probably an AFU bug.
*/
- scp->result = (DID_ERROR << 16);
+ scp->status.combined = (DID_ERROR << 16);
}
break;
case SISL_FC_RC_RESIDERR:
@@ -108,7 +108,7 @@ static void process_cmd_err(struct afu_cmd *cmd, struct scsi_cmnd *scp)
case SISL_FC_RC_WRABORTPEND:
case SISL_FC_RC_NOEXP:
case SISL_FC_RC_INUSE:
- scp->result = (DID_ERROR << 16);
+ scp->status.combined = (DID_ERROR << 16);
break;
}
}
@@ -117,25 +117,25 @@ static void process_cmd_err(struct afu_cmd *cmd, struct scsi_cmnd *scp)
/* We have an AFU error */
switch (ioasa->rc.afu_rc) {
case SISL_AFU_RC_NO_CHANNELS:
- scp->result = (DID_NO_CONNECT << 16);
+ scp->status.combined = (DID_NO_CONNECT << 16);
break;
case SISL_AFU_RC_DATA_DMA_ERR:
switch (ioasa->afu_extra) {
case SISL_AFU_DMA_ERR_PAGE_IN:
/* Retry */
- scp->result = (DID_IMM_RETRY << 16);
+ scp->status.combined = (DID_IMM_RETRY << 16);
break;
case SISL_AFU_DMA_ERR_INVALID_EA:
default:
- scp->result = (DID_ERROR << 16);
+ scp->status.combined = (DID_ERROR << 16);
}
break;
case SISL_AFU_RC_OUT_OF_DATA_BUFS:
/* Retry */
- scp->result = (DID_ALLOC_FAILURE << 16);
+ scp->status.combined = (DID_ALLOC_FAILURE << 16);
break;
default:
- scp->result = (DID_ERROR << 16);
+ scp->status.combined = (DID_ERROR << 16);
}
}
}
@@ -167,10 +167,10 @@ static void cmd_complete(struct afu_cmd *cmd)
if (unlikely(cmd->sa.ioasc))
process_cmd_err(cmd, scp);
else
- scp->result = (DID_OK << 16);
+ scp->status.combined = (DID_OK << 16);

dev_dbg_ratelimited(dev, "%s:scp=%p result=%08x ioasc=%08x\n",
- __func__, scp, scp->result, cmd->sa.ioasc);
+ __func__, scp, scp->status.combined, cmd->sa.ioasc);
scp->scsi_done(scp);
} else if (cmd->cmd_tmf) {
spin_lock_irqsave(&cfg->tmf_slock, lock_flags);
@@ -204,7 +204,7 @@ static void flush_pending_cmds(struct hwq *hwq)

if (cmd->scp) {
scp = cmd->scp;
- scp->result = (DID_IMM_RETRY << 16);
+ scp->status.combined = (DID_IMM_RETRY << 16);
scp->scsi_done(scp);
} else {
cmd->cmd_aborted = true;
@@ -600,7 +600,7 @@ static int cxlflash_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *scp)
goto out;
case STATE_FAILTERM:
dev_dbg_ratelimited(dev, "%s: device has failed\n", __func__);
- scp->result = (DID_NO_CONNECT << 16);
+ scp->status.combined = (DID_NO_CONNECT << 16);
scp->scsi_done(scp);
rc = 0;
goto out;
diff --git a/drivers/scsi/cxlflash/superpipe.c b/drivers/scsi/cxlflash/superpipe.c
index ee11ec340654..4a19a154e237 100644
--- a/drivers/scsi/cxlflash/superpipe.c
+++ b/drivers/scsi/cxlflash/superpipe.c
@@ -336,7 +336,7 @@ static int read_cap16(struct scsi_device *sdev, struct llun_info *lli)
u8 *cmd_buf = NULL;
u8 *scsi_cmd = NULL;
int rc = 0;
- int result = 0;
+ union scsi_status result;
int retry_cnt = 0;
u32 to = CMD_TIMEOUT * HZ;

@@ -357,26 +357,26 @@ static int read_cap16(struct scsi_device *sdev, struct llun_info *lli)

/* Drop the ioctl read semahpore across lengthy call */
up_read(&cfg->ioctl_rwsem);
- result = scsi_execute(sdev, scsi_cmd, DMA_FROM_DEVICE, cmd_buf,
+ result.combined = scsi_execute(sdev, scsi_cmd, DMA_FROM_DEVICE, cmd_buf,
CMD_BUFSIZE, NULL, &sshdr, to, CMD_RETRIES,
0, 0, NULL);
down_read(&cfg->ioctl_rwsem);
rc = check_state(cfg);
if (rc) {
dev_err(dev, "%s: Failed state result=%08x\n",
- __func__, result);
+ __func__, result.combined);
rc = -ENODEV;
goto out;
}

if (driver_byte(result) == DRIVER_SENSE) {
- result &= ~(0xFF<<24); /* DRIVER_SENSE is not an error */
- if (result & SAM_STAT_CHECK_CONDITION) {
+ result.b.driver = DRIVER_OK; /* DRIVER_SENSE is not an error */
+ if (result.b.status & SAM_STAT_CHECK_CONDITION) {
switch (sshdr.sense_key) {
case NO_SENSE:
case RECOVERED_ERROR:
case NOT_READY:
- result &= ~SAM_STAT_CHECK_CONDITION;
+ result.b.status &= ~SAM_STAT_CHECK_CONDITION;
break;
case UNIT_ATTENTION:
switch (sshdr.asc) {
@@ -398,9 +398,9 @@ static int read_cap16(struct scsi_device *sdev, struct llun_info *lli)
}
}

- if (result) {
+ if (result.combined) {
dev_err(dev, "%s: command failed, result=%08x\n",
- __func__, result);
+ __func__, result.combined);
rc = -EIO;
goto out;
}