diff options
author | Robert Jennings <rcj@linux.vnet.ibm.com> | 2007-11-12 09:00:23 -0600 |
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committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2008-01-11 18:22:45 -0600 |
commit | 860784c8a2b077157b6a51fb8749524d0363cc49 (patch) | |
tree | 720d50af0b50e65969d313e9ae62966f5b8d02ac /arch | |
parent | dc8875e1078961591af4fbf9556c44648bf28d11 (diff) |
[SCSI] ibmvscsi: requeue while CRQ closed
CRQ send errors that return with H_CLOSED should return with
SCSI_MLQUEUE_HOST_BUSY until firmware alerts the client of a CRQ
transport event. The transport event will either reinitialize and
requeue the requests or fail and return IO with DID_ERROR.
To avoid failing the eh_* functions while re-attaching to the server
adapter this will retry for a period of time while ibmvscsi_send_srp_event
returns SCSI_MLQUEUE_HOST_BUSY.
In ibmvscsi_eh_abort_handler() the loop includes the search of the
event list. The lock on the hostdata is dropped while waiting to try
again after failing ibmvscsi_send_srp_event. The event could have been
purged if a login was in progress when the function was called.
In ibmvscsi_eh_device_reset_handler() the loop includes the call to
get_event_struct() because a failing call to ibmvscsi_send_srp_event()
will have freed the event struct.
Signed-off-by: Robert Jennings <rcj@linux.vnet.ibm.com>
Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'arch')
0 files changed, 0 insertions, 0 deletions