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authorHannes Reinecke <hare@suse.de>2006-03-08 13:00:07 +0100
committerJames Bottomley <jejb@mulgrave.il.steeleye.com>2006-03-12 09:06:57 -0600
commit76744f429a178ad2df06b722e5e7bbbf1b5245ee (patch)
tree92406bc62b0316803746c57e2e461721bc454578 /drivers/scsi/aic7xxx/aic79xx_osm.c
parent986a25f96accc8272059ae8b3eb63055f58cadb0 (diff)
[SCSI] aic79xx: Avoid renegotiation on inquiry
Because of some quirk in the SCSI spec the aic79xx driver chose to force a renegotiation when sending an inquiry. This should better be handled by the upper layers if required at all. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/scsi/aic7xxx/aic79xx_osm.c')
-rw-r--r--drivers/scsi/aic7xxx/aic79xx_osm.c24
1 files changed, 0 insertions, 24 deletions
diff --git a/drivers/scsi/aic7xxx/aic79xx_osm.c b/drivers/scsi/aic7xxx/aic79xx_osm.c
index 0fbd1ec5834..bcced0a417e 100644
--- a/drivers/scsi/aic7xxx/aic79xx_osm.c
+++ b/drivers/scsi/aic7xxx/aic79xx_osm.c
@@ -1526,30 +1526,6 @@ ahd_linux_run_command(struct ahd_softc *ahd, struct ahd_linux_device *dev,
if ((tstate->auto_negotiate & mask) != 0) {
scb->flags |= SCB_AUTO_NEGOTIATE;
scb->hscb->control |= MK_MESSAGE;
- } else if (cmd->cmnd[0] == INQUIRY
- && (tinfo->curr.offset != 0
- || tinfo->curr.width != MSG_EXT_WDTR_BUS_8_BIT
- || tinfo->curr.ppr_options != 0)
- && (tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ)==0) {
- /*
- * The SCSI spec requires inquiry
- * commands to complete without
- * reporting unit attention conditions.
- * Because of this, an inquiry command
- * that occurs just after a device is
- * reset will result in a data phase
- * with mismatched negotiated rates.
- * The core already forces a renegotiation
- * for reset events that are visible to
- * our controller or that we initiate,
- * but a third party device reset or a
- * hot-plug insertion can still cause this
- * issue. Therefore, we force a re-negotiation
- * for every inquiry command unless we
- * are async.
- */
- scb->flags |= SCB_NEGOTIATE;
- scb->hscb->control |= MK_MESSAGE;
}
if ((dev->flags & (AHD_DEV_Q_TAGGED|AHD_DEV_Q_BASIC)) != 0) {