Commit 646d3857 authored by Brian King's avatar Brian King Committed by James Bottomley
Browse files

[SCSI] ibmvfc: Handle port login required response



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: default avatarBrian King <brking@linux.vnet.ibm.com>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@HansenPartnership.com>
parent 5919ce29
......@@ -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 ibmvfc_event *evt)
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);
......
......@@ -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,
};
......
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