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[SCSI] ipr: fix synchronous request flags for better performance

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In testing it was noticed that Extended Delay after Reset flag was being set
for gscsi and volume set devices.  This had a negative effect on performance
for volume sets.  The fix is to only set the flag for gscsi devices.

Signed-off-by: Wayne Boyer <wayneb@linux.vnet.ibm.com>
Acked-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Wayne Boyer 2011-03-31 09:56:10 -07:00 committed by James Bottomley
parent c9c2a14047
commit ab6c10b136
2 changed files with 3 additions and 2 deletions
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drivers/scsi/ipr.c
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@ -5773,6 +5773,7 @@ static int ipr_queuecommand_lck(struct scsi_cmnd *scsi_cmd,
} }
ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC; ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
if (ipr_is_gscsi(res))
ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST; ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST;
ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR; ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR;
ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd); ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd);