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authorbrking@us.ibm.com <brking@us.ibm.com>2005-11-01 18:00:11 -0500
committerJames Bottomley <jejb@mulgrave.(none)>2005-11-06 13:59:48 -0500
commit11cd8f120173a707e9ed7b78f7af8cde5a1ebb90 (patch)
tree3e2fe64fc9a3cebb932364253d4d7fb71946c25e /drivers/scsi/ipr.c
parentd6933df97a486d9c73a6bb4fed75154343c8638f (diff)
[SCSI] ipr: Disk array rescanning fix
IPR RAID arrays show up on a virtual scsi bus, with a scsi bus number of 255, which is generated by the adapter microcode. For the initial scan of the host, we manually scan this bus since it does not obey SAM in regards to sparse LUNs and the disk array devices do not have a consistent product id to use scsi core's blacklist. If /proc/scsi/scsi or sysfs is used to delete one of these devices, the device will not be able to get added back by rescanning the host since scsi core will see ipr's max_channel as 4, rather than 255. Update max_channel after the initial scan so that ipr raid arrays can get re-added if they get deleted. Signed-off-by: Brian King <brking@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/scsi/ipr.c')
-rw-r--r--drivers/scsi/ipr.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index e0039dfae8e5..da61ce1998c3 100644
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -6008,6 +6008,7 @@ static int __devinit ipr_probe(struct pci_dev *pdev,
6008 ipr_scan_vsets(ioa_cfg); 6008 ipr_scan_vsets(ioa_cfg);
6009 scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN); 6009 scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN);
6010 ioa_cfg->allow_ml_add_del = 1; 6010 ioa_cfg->allow_ml_add_del = 1;
6011 ioa_cfg->host->max_channel = IPR_VSET_BUS;
6011 schedule_work(&ioa_cfg->work_q); 6012 schedule_work(&ioa_cfg->work_q);
6012 return 0; 6013 return 0;
6013} 6014}