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authorAndrew Vasquez <andrew.vasquez@qlogic.com>2009-04-29 13:12:39 -0500
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2009-05-15 12:16:46 -0400
commit9a1a69a1f41cbefebf3172761f197db6aba71e68 (patch)
tree65a2a8fc525e66c50654b30602a8a43826827e36 /include
parentc53a284f8be23735dc6b53929640a987055f2933 (diff)
downloadop-kernel-dev-9a1a69a1f41cbefebf3172761f197db6aba71e68.zip
op-kernel-dev-9a1a69a1f41cbefebf3172761f197db6aba71e68.tar.gz
[SCSI] fc-transport: Close state transition-window during rport deletion.
Andrew Vasquez wrote: > fc-transport: Close state transition-window during rport deletion. > > After an rport's state has transitioned to FC_PORTSTATE_BLOCKED, > but, prior to making the upcall to 'block' the scsi-target > associated with an rport, queued commands can recycle and > ultimately run out of retries causing failures to propagate to > upper-level drivers. Close this transition-window by returning > the non-'retries' modifying DID_IMM_RETRY status for submitted > I/Os. The same can happen for iscsi when transitioning from logged in to failed and blocking the sdevs. This patch converts iscsi and fc's transitions back to use DID_IMM_RETRY instead of DID_TRANSPORT_DISRUPTED which has a limited number of retries that we do not want to use for handling this race. Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> [Addition of iscsi and fc port online devloss case conversion by Mike Christie] Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'include')
-rw-r--r--include/scsi/scsi_transport_fc.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/scsi/scsi_transport_fc.h b/include/scsi/scsi_transport_fc.h
index c9184f7..68a8d87 100644
--- a/include/scsi/scsi_transport_fc.h
+++ b/include/scsi/scsi_transport_fc.h
@@ -680,7 +680,7 @@ fc_remote_port_chkready(struct fc_rport *rport)
if (rport->roles & FC_PORT_ROLE_FCP_TARGET)
result = 0;
else if (rport->flags & FC_RPORT_DEVLOSS_PENDING)
- result = DID_TRANSPORT_DISRUPTED << 16;
+ result = DID_IMM_RETRY << 16;
else
result = DID_NO_CONNECT << 16;
break;
@@ -688,7 +688,7 @@ fc_remote_port_chkready(struct fc_rport *rport)
if (rport->flags & FC_RPORT_FAST_FAIL_TIMEDOUT)
result = DID_TRANSPORT_FAILFAST << 16;
else
- result = DID_TRANSPORT_DISRUPTED << 16;
+ result = DID_IMM_RETRY << 16;
break;
default:
result = DID_NO_CONNECT << 16;
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