Re: [PATCH 1/5] libsas: disable scanning lun > 0 on ata devices

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 09/20/2011 06:10 PM, Dan Williams wrote:
Currently mvsas and pm8001 have custom ->slave_alloc implementations to
achieve this.  Uplevel it for all libsas drivers as isci encounters problems
with atapi devices when scanning past lun0.

Just do what Darrick suggested [1], and limit the scan for ata devices.

[1] http://marc.info/?l=linux-scsi&m=116604101119861&w=2

Cc: Darrick Wong<djwong@xxxxxxxxxx>
Cc: Xiangliang Yu<yuxiangl@xxxxxxxxxxx>
Cc: Jack Wang<jack_wang@xxxxxxxxx>
Cc: Mark Salyzyn<msalyzyn@xxxxxxxxxxxxxx>
Cc: Luben Tuikov<ltuikov@xxxxxxxxx>
Signed-off-by: Dan Williams<dan.j.williams@xxxxxxxxx>
---
  drivers/scsi/scsi_transport_sas.c |   10 ++++++++--
  1 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/scsi_transport_sas.c b/drivers/scsi/scsi_transport_sas.c
index c6fcf76..9d9330a 100644
--- a/drivers/scsi/scsi_transport_sas.c
+++ b/drivers/scsi/scsi_transport_sas.c
@@ -1545,8 +1545,14 @@ int sas_rphy_add(struct sas_rphy *rphy)

  	if (identify->device_type == SAS_END_DEVICE&&
  	rphy->scsi_target_id != -1) {
-		scsi_scan_target(&rphy->dev, 0,
-				rphy->scsi_target_id, SCAN_WILD_CARD, 0);
+		int lun;
+
+		if (identify->target_port_protocols&  SAS_PROTOCOL_SSP)
+			lun = SCAN_WILD_CARD;
+		else
+			lun = 0;
+
+		scsi_scan_target(&rphy->dev, 0, rphy->scsi_target_id, lun, 0);

Acked-by: Jeff Garzik <jgarzik@xxxxxxxxxx>



--
To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [SCSI Target Devel]     [Linux SCSI Target Infrastructure]     [Kernel Newbies]     [IDE]     [Security]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Linux ATA RAID]     [Linux IIO]     [Samba]     [Device Mapper]
  Powered by Linux