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authorJames.Smart@Emulex.Com <James.Smart@Emulex.Com>2005-08-10 15:02:30 -0400
committerJames Bottomley <jejb@mulgrave.(none)>2005-08-12 13:08:54 -0400
commitea84c3f74df646a0897e95c78147190517a751a9 (patch)
treeab04eda0ed5763908dfbb5803e44052e53607f40 /scripts/reference_init.pl
parentf888ba3ce77c66bece3d804caf7d559838209a4a (diff)
[SCSI] lpfc driver 8.0.30 : dev_loss and nodev timeouts
Fix handling of the dev_loss and nodev timeouts. Symptoms: when remote port disappears for a period of time longer then either nodev_tmo or dev_loss_tmo, the lpfc driver worker thread will stall removing that remote port. Cause: removing remote port involves un-blocking and sync-ing corresponding block device queue. But corresponding node in the lpfc driver is still in the NPR(?node port recovery?) state and mid-layer gets SCSI_MLQUEUE_HOST_BUSY as a return value when it is trying to call queuecommand() with command for that node (AKA remote port) Fix: Instead of returning SCSI_MLQUEUE_HOST_BUS from queuecommand() for nodes in NPR states complete it with retry-able error code DID_BUS_BUSY Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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