The virtual fibre channel stack can return a failure response for a command
indicating the port login has been invalidated without sending the client
an async event. Add code to handle this response and initiate a PLOGI.
Signed-off-by: Brian King <brking@xxxxxxxxxxxxxxxxxx>
---
drivers/scsi/ibmvscsi/ibmvfc.c | 3 +++
drivers/scsi/ibmvscsi/ibmvfc.h | 1 +
2 files changed, 4 insertions(+)
diff -puN drivers/scsi/ibmvscsi/ibmvfc.h~ibmvfc_port_login_reqd drivers/scsi/ibmvscsi/ibmvfc.h
--- linux-2.6/drivers/scsi/ibmvscsi/ibmvfc.h~ibmvfc_port_login_reqd 2008-11-13 16:20:22.000000000 -0600
+++ linux-2.6-bjking1/drivers/scsi/ibmvscsi/ibmvfc.h 2008-11-13 16:22:46.000000000 -0600
@@ -109,6 +109,7 @@ enum ibmvfc_vios_errors {
IBMVFC_TRANS_CANCELLED = 0x0006,
IBMVFC_TRANS_CANCELLED_IMPLICIT = 0x0007,
IBMVFC_INSUFFICIENT_RESOURCE = 0x0008,
+ IBMVFC_PLOGI_REQUIRED = 0x0010,
IBMVFC_COMMAND_FAILED = 0x8000,
};
diff -puN drivers/scsi/ibmvscsi/ibmvfc.c~ibmvfc_port_login_reqd drivers/scsi/ibmvscsi/ibmvfc.c
--- linux-2.6/drivers/scsi/ibmvscsi/ibmvfc.c~ibmvfc_port_login_reqd 2008-11-13 16:22:53.000000000 -0600
+++ linux-2.6-bjking1/drivers/scsi/ibmvscsi/ibmvfc.c 2008-11-13 16:44:02.000000000 -0600
@@ -121,6 +121,7 @@ static const struct {
{ IBMVFC_VIOS_FAILURE, IBMVFC_TRANS_CANCELLED, DID_ABORT, 0, 1, "transaction cancelled" },
{ IBMVFC_VIOS_FAILURE, IBMVFC_TRANS_CANCELLED_IMPLICIT, DID_ABORT, 0, 1, "transaction cancelled implicit" },
{ IBMVFC_VIOS_FAILURE, IBMVFC_INSUFFICIENT_RESOURCE, DID_REQUEUE, 1, 1, "insufficient resources" },
+ { IBMVFC_VIOS_FAILURE, IBMVFC_PLOGI_REQUIRED, DID_ERROR, 0, 1, "port login required" },
{ IBMVFC_VIOS_FAILURE, IBMVFC_COMMAND_FAILED, DID_ERROR, 1, 1, "command failed" },
{ IBMVFC_FC_FAILURE, IBMVFC_INVALID_ELS_CMD_CODE, DID_ERROR, 0, 1, "invalid ELS command code" },
@@ -1475,6 +1476,8 @@ static void ibmvfc_scsi_done(struct ibmv
sense_len = SCSI_SENSE_BUFFERSIZE - rsp_len;
if ((rsp->flags & FCP_SNS_LEN_VALID) && rsp->fcp_sense_len && rsp_len <= 8)
memcpy(cmnd->sense_buffer, rsp->data.sense + rsp_len, sense_len);
+ if ((vfc_cmd->status & IBMVFC_VIOS_FAILURE) && (vfc_cmd->error == IBMVFC_PLOGI_REQUIRED))
+ ibmvfc_reinit_host(evt->vhost);
if (!cmnd->result && (!scsi_get_resid(cmnd) || (rsp->flags & FCP_RESID_OVER)))
cmnd->result = (DID_ERROR << 16);
_
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