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 <[email protected]> Signed-off-by: Hiral Patel <[email protected]> --- drivers/scsi/fnic/fnic_scsi.c | 32 -------------------------------- 1 file changed, 32 deletions(-) diff --git a/drivers/scsi/fnic/fnic_scsi.c b/drivers/scsi/fnic/fnic_scsi.c index ef3c463..a09dd8d 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 */ -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
