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| author | Suma Ramars <sramars@cisco.com> | 2013-09-09 13:31:48 -0700 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2013-09-11 15:49:30 -0700 |
| commit | 318c7c4325ad2c4e969a0b79008192ce8c054463 (patch) | |
| tree | e16bf9acf97a54ab03eca050d3dbcfaab5fe1efd | |
| parent | 87aa619c17976ac799b30110e830cf86d2e2e99a (diff) | |
| download | talos-op-linux-318c7c4325ad2c4e969a0b79008192ce8c054463.tar.gz talos-op-linux-318c7c4325ad2c4e969a0b79008192ce8c054463.zip | |
[SCSI] fnic: Remove QUEUE_FULL handling code
Remove fnic driver QUEUE_FULL handling code instead let SCSI mid layer
handle queue full and use its algorithm to ramp down/up queue
Signed-off-by: Suma Ramars <sramars@cisco.com>
Signed-off-by: Hiral Patel <hiralpat@cisco.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| -rw-r--r-- | drivers/scsi/fnic/fnic_scsi.c | 32 |
1 files changed, 0 insertions, 32 deletions
diff --git a/drivers/scsi/fnic/fnic_scsi.c b/drivers/scsi/fnic/fnic_scsi.c index a97e6e584f8c..4ff0a332f298 100644 --- a/drivers/scsi/fnic/fnic_scsi.c +++ b/drivers/scsi/fnic/fnic_scsi.c @@ -818,38 +818,6 @@ static void fnic_fcpio_icmnd_cmpl_handler(struct fnic *fnic, if (icmnd_cmpl->flags & FCPIO_ICMND_CMPL_RESID_UNDER) xfer_len -= icmnd_cmpl->residual; - /* - * If queue_full, then try to reduce queue depth for all - * LUNS on the target. Todo: this should be accompanied - * by a periodic queue_depth rampup based on successful - * IO completion. - */ - if (icmnd_cmpl->scsi_status == QUEUE_FULL) { - struct scsi_device *t_sdev; - int qd = 0; - - shost_for_each_device(t_sdev, sc->device->host) { - if (t_sdev->id != sc->device->id) - continue; - - if (t_sdev->queue_depth > 1) { - qd = scsi_track_queue_full - (t_sdev, - t_sdev->queue_depth - 1); - if (qd == -1) - qd = t_sdev->host->cmd_per_lun; - shost_printk(KERN_INFO, - fnic->lport->host, - "scsi[%d:%d:%d:%d" - "] queue full detected," - "new depth = %d\n", - t_sdev->host->host_no, - t_sdev->channel, - t_sdev->id, t_sdev->lun, - t_sdev->queue_depth); - } - } - } break; case FCPIO_TIMEOUT: /* request was timed out */ |
