Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit bbc5ec52 authored by Selvin Xavier's avatar Selvin Xavier Committed by Roland Dreier
Browse files

RDMA/ocrdma: Support non-embedded mailbox commands 



Added a routine to issue non-embedded mailbox commands for handling
large mailbox request/response data.

Signed-off-by: default avatarSelvin Xavier <selvin.xavier@emulex.com>
Signed-off-by: default avatarDevesh Sharma <devesh.sharma@emulex.com>
Signed-off-by: default avatarRoland Dreier <roland@purestorage.com>
parent 1228056b

drivers/infiniband/hw/ocrdma/ocrdma_hw.c

+47 −8
Original line number Original line Diff line number Diff line
@@ -953,7 +953,8 @@ static int ocrdma_mbx_cmd(struct ocrdma_dev *dev, struct ocrdma_mqe *mqe) 
{

{

	int status = 0;

	int status = 0;

	u16 cqe_status, ext_status;

	u16 cqe_status, ext_status;

	struct ocrdma_mqe *rsp;

	struct ocrdma_mqe *rsp_mqe;

	struct ocrdma_mbx_rsp *rsp = NULL;





	mutex_lock(&dev->mqe_ctx.lock);

	mutex_lock(&dev->mqe_ctx.lock);

	ocrdma_post_mqe(dev, mqe);

	ocrdma_post_mqe(dev, mqe);
@@ -962,23 +963,61 @@ static int ocrdma_mbx_cmd(struct ocrdma_dev *dev, struct ocrdma_mqe *mqe) 
		goto mbx_err;

		goto mbx_err;

	cqe_status = dev->mqe_ctx.cqe_status;

	cqe_status = dev->mqe_ctx.cqe_status;

	ext_status = dev->mqe_ctx.ext_status;

	ext_status = dev->mqe_ctx.ext_status;

	rsp = ocrdma_get_mqe_rsp(dev);

	rsp_mqe = ocrdma_get_mqe_rsp(dev);

	ocrdma_copy_le32_to_cpu(mqe, rsp, (sizeof(*mqe)));

	ocrdma_copy_le32_to_cpu(mqe, rsp_mqe, (sizeof(*mqe)));

	if ((mqe->hdr.spcl_sge_cnt_emb & OCRDMA_MQE_HDR_EMB_MASK) >>

				OCRDMA_MQE_HDR_EMB_SHIFT)

		rsp = &mqe->u.rsp;



	if (cqe_status || ext_status) {

	if (cqe_status || ext_status) {

		pr_err("%s() opcode=0x%x, cqe_status=0x%x, ext_status=0x%x\n",

		pr_err("%s() cqe_status=0x%x, ext_status=0x%x,",

		       __func__,

		       __func__, cqe_status, ext_status);

		     (rsp->u.rsp.subsys_op & OCRDMA_MBX_RSP_OPCODE_MASK) >>

		if (rsp) {

		     OCRDMA_MBX_RSP_OPCODE_SHIFT, cqe_status, ext_status);

			/* This is for embedded cmds. */

			pr_err("opcode=0x%x, subsystem=0x%x\n",

			       (rsp->subsys_op & OCRDMA_MBX_RSP_OPCODE_MASK) >>

				OCRDMA_MBX_RSP_OPCODE_SHIFT,

				(rsp->subsys_op & OCRDMA_MBX_RSP_SUBSYS_MASK) >>

				OCRDMA_MBX_RSP_SUBSYS_SHIFT);

		}

		status = ocrdma_get_mbx_cqe_errno(cqe_status);

		status = ocrdma_get_mbx_cqe_errno(cqe_status);

		goto mbx_err;

		goto mbx_err;

	}

	}

	if (mqe->u.rsp.status & OCRDMA_MBX_RSP_STATUS_MASK)

	/* For non embedded, rsp errors are handled in ocrdma_nonemb_mbx_cmd */

	if (rsp && (mqe->u.rsp.status & OCRDMA_MBX_RSP_STATUS_MASK))

		status = ocrdma_get_mbx_errno(mqe->u.rsp.status);

		status = ocrdma_get_mbx_errno(mqe->u.rsp.status);

mbx_err:

mbx_err:

	mutex_unlock(&dev->mqe_ctx.lock);

	mutex_unlock(&dev->mqe_ctx.lock);

	return status;

	return status;

}

}





static int ocrdma_nonemb_mbx_cmd(struct ocrdma_dev *dev, struct ocrdma_mqe *mqe,

				 void *payload_va)

{

	int status = 0;

	struct ocrdma_mbx_rsp *rsp = payload_va;



	if ((mqe->hdr.spcl_sge_cnt_emb & OCRDMA_MQE_HDR_EMB_MASK) >>

				OCRDMA_MQE_HDR_EMB_SHIFT)

		BUG();



	status = ocrdma_mbx_cmd(dev, mqe);

	if (!status)

		/* For non embedded, only CQE failures are handled in

		 * ocrdma_mbx_cmd. We need to check for RSP errors.

		 */

		if (rsp->status & OCRDMA_MBX_RSP_STATUS_MASK)

			status = ocrdma_get_mbx_errno(rsp->status);



	if (status)

		pr_err("opcode=0x%x, subsystem=0x%x\n",

		       (rsp->subsys_op & OCRDMA_MBX_RSP_OPCODE_MASK) >>

			OCRDMA_MBX_RSP_OPCODE_SHIFT,

			(rsp->subsys_op & OCRDMA_MBX_RSP_SUBSYS_MASK) >>

			OCRDMA_MBX_RSP_SUBSYS_SHIFT);

	return status;

}



static void ocrdma_get_attr(struct ocrdma_dev *dev,

static void ocrdma_get_attr(struct ocrdma_dev *dev,

			      struct ocrdma_dev_attr *attr,

			      struct ocrdma_dev_attr *attr,

			      struct ocrdma_mbx_query_config *rsp)

			      struct ocrdma_mbx_query_config *rsp)