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Commit 85fef202 authored by Anil Veerabhadrappa's avatar Anil Veerabhadrappa Committed by James Bottomley
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[SCSI] bnx2i: Task management ABORT TASK fixes 



Due to typo error driver was failing TMF Abort Task request when
ctask->sc != NULL. Fixed code to fail TMF ABORT Task request only when
ctask->sc == NULL.  Clear age component (19 most significant bits) of
reference ITT carried in iSCSI TMF PDU. Age component is internal to
initiator side and only lower bits of ITT as defined by ISCSI_ITT_MASK
is is sent on wire.  Retrieve LUN directly from the ref_sc and update
SQ wqe as per chip HSI (Host Software Interface) specification

Signed-off-by: default avatarAnil Veerabhadrappa <anilgv@broadcom.com>
Reviewed-by: default avatarMike Christie <michaelc@cs.wisc.edu>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@suse.de>
parent 8776193b

drivers/scsi/bnx2i/bnx2i_hwi.c

+13 −4
Original line number Diff line number Diff line
@@ -384,6 +384,7 @@ int bnx2i_send_iscsi_tmf(struct bnx2i_conn *bnx2i_conn, 
	struct bnx2i_cmd *bnx2i_cmd;

	struct bnx2i_tmf_request *tmfabort_wqe;

	u32 dword;

	u32 scsi_lun[2];



	bnx2i_cmd = (struct bnx2i_cmd *)mtask->dd_data;

	tmfabort_hdr = (struct iscsi_tm *)mtask->hdr;
@@ -394,27 +395,35 @@ int bnx2i_send_iscsi_tmf(struct bnx2i_conn *bnx2i_conn, 
	tmfabort_wqe->op_attr = 0;

	tmfabort_wqe->op_attr =

		ISCSI_TMF_REQUEST_ALWAYS_ONE | ISCSI_TM_FUNC_ABORT_TASK;

	tmfabort_wqe->lun[0] = be32_to_cpu(tmfabort_hdr->lun[0]);

	tmfabort_wqe->lun[1] = be32_to_cpu(tmfabort_hdr->lun[1]);



	tmfabort_wqe->itt = (mtask->itt | (ISCSI_TASK_TYPE_MPATH << 14));

	tmfabort_wqe->reserved2 = 0;

	tmfabort_wqe->cmd_sn = be32_to_cpu(tmfabort_hdr->cmdsn);



	ctask = iscsi_itt_to_task(conn, tmfabort_hdr->rtt);

	if (!ctask || ctask->sc)

	if (!ctask || !ctask->sc)

		/*

		 * the iscsi layer must have completed the cmd while this

		 * was starting up.

		 *

		 * Note: In the case of a SCSI cmd timeout, the task's sc

		 *       is still active; hence ctask->sc != 0

		 *       In this case, the task must be aborted

		 */

		return 0;



	ref_sc = ctask->sc;



	/* Retrieve LUN directly from the ref_sc */

	int_to_scsilun(ref_sc->device->lun, (struct scsi_lun *) scsi_lun);

	tmfabort_wqe->lun[0] = be32_to_cpu(scsi_lun[0]);

	tmfabort_wqe->lun[1] = be32_to_cpu(scsi_lun[1]);



	if (ref_sc->sc_data_direction == DMA_TO_DEVICE)

		dword = (ISCSI_TASK_TYPE_WRITE << ISCSI_CMD_REQUEST_TYPE_SHIFT);

	else

		dword = (ISCSI_TASK_TYPE_READ << ISCSI_CMD_REQUEST_TYPE_SHIFT);

	tmfabort_wqe->ref_itt = (dword | tmfabort_hdr->rtt);

	tmfabort_wqe->ref_itt = (dword | (tmfabort_hdr->rtt & ISCSI_ITT_MASK));

	tmfabort_wqe->ref_cmd_sn = be32_to_cpu(tmfabort_hdr->refcmdsn);



	tmfabort_wqe->bd_list_addr_lo = (u32) bnx2i_conn->hba->mp_bd_dma;