From 2fc62e2ac350b8f574e0a09170b350a8f2fa4a02 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Tue, 20 Sep 2011 15:10:19 -0700 Subject: [SCSI] libsas: disable scanning lun > 0 on ata devices 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 Signed-off-by: Dan Williams Signed-off-by: James Bottomley --- drivers/scsi/scsi_transport_sas.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) (limited to 'drivers/scsi/scsi_transport_sas.c') diff --git a/drivers/scsi/scsi_transport_sas.c b/drivers/scsi/scsi_transport_sas.c index c6fcf76cade5..9d9330ae4213 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); } return 0; -- cgit v1.2.3