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

drivers/scsi/ibmvscsi/ibmvfc.c

+3 −0
Original line number Diff line number Diff line
@@ -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);

drivers/scsi/ibmvscsi/ibmvfc.h

+1 −0
Original line number Diff line number Diff line
@@ -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,

};