From: Selvin Xavier <[email protected]> Added a routine to issue non-embedded mailbox commands, for handling large mailbox request/response data
Signed-off-by: Selvin Xavier <[email protected]> Signed-off-by: Devesh Sharma <[email protected]> --- drivers/infiniband/hw/ocrdma/ocrdma_hw.c | 55 +++++++++++++++++++++++++---- 1 files changed, 47 insertions(+), 8 deletions(-) diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_hw.c b/drivers/infiniband/hw/ocrdma/ocrdma_hw.c index 6a36476..7ca83eb 100644 --- a/drivers/infiniband/hw/ocrdma/ocrdma_hw.c +++ b/drivers/infiniband/hw/ocrdma/ocrdma_hw.c @@ -953,7 +953,8 @@ static int ocrdma_mbx_cmd(struct ocrdma_dev *dev, struct ocrdma_mqe *mqe) { int status = 0; 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); 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; cqe_status = dev->mqe_ctx.cqe_status; ext_status = dev->mqe_ctx.ext_status; - rsp = ocrdma_get_mqe_rsp(dev); - ocrdma_copy_le32_to_cpu(mqe, rsp, (sizeof(*mqe))); + rsp_mqe = ocrdma_get_mqe_rsp(dev); + 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) { - pr_err("%s() opcode=0x%x, cqe_status=0x%x, ext_status=0x%x\n", - __func__, - (rsp->u.rsp.subsys_op & OCRDMA_MBX_RSP_OPCODE_MASK) >> - OCRDMA_MBX_RSP_OPCODE_SHIFT, cqe_status, ext_status); + pr_err("%s() cqe_status=0x%x, ext_status=0x%x,", + __func__, cqe_status, ext_status); + if (rsp) { + /* 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); 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); mbx_err: mutex_unlock(&dev->mqe_ctx.lock); 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, struct ocrdma_dev_attr *attr, struct ocrdma_mbx_query_config *rsp) -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
