On Mon, Feb 01, 2016 at 03:42:41PM +0530, Jitendra Bhivare wrote:
> Rename mcc_numtag to mcc_tag_status.
> MCC CQE status is processed using macros already defined in be_cmds.h.
>
> Add MCC_Q_WRB_ and MCC_Q_CMD_TAG_MASK macros to map to already defined
> CQE_STATUS_ macros to be consistent when posting MCC.
>
> Signed-off-by: Jitendra Bhivare <jitendra.bhiv...@avagotech.com>
> ---
> drivers/scsi/be2iscsi/be.h | 8 +++++++-
> drivers/scsi/be2iscsi/be_cmds.c | 40 +++++++++++++++++++++-------------------
> drivers/scsi/be2iscsi/be_cmds.h | 13 +++++++------
> drivers/scsi/be2iscsi/be_main.c | 11 ++++++-----
> 4 files changed, 41 insertions(+), 31 deletions(-)
>
> diff --git a/drivers/scsi/be2iscsi/be.h b/drivers/scsi/be2iscsi/be.h
> index 1524fe4..da1d87a 100644
> --- a/drivers/scsi/be2iscsi/be.h
> +++ b/drivers/scsi/be2iscsi/be.h
> @@ -135,7 +135,7 @@ struct be_ctrl_info {
>
> wait_queue_head_t mcc_wait[MAX_MCC_CMD + 1];
> unsigned int mcc_tag[MAX_MCC_CMD];
> - unsigned int mcc_numtag[MAX_MCC_CMD + 1];
> + unsigned int mcc_tag_status[MAX_MCC_CMD + 1];
> unsigned short mcc_alloc_index;
> unsigned short mcc_free_index;
> unsigned int mcc_tag_available;
> @@ -145,6 +145,12 @@ struct be_ctrl_info {
>
> #include "be_cmds.h"
>
> +/* WRB index mask for MCC_Q_LEN queue entries */
> +#define MCC_Q_WRB_IDX_MASK CQE_STATUS_WRB_MASK
> +#define MCC_Q_WRB_IDX_SHIFT CQE_STATUS_WRB_SHIFT
> +/* TAG is from 1...MAX_MCC_CMD, MASK includes MAX_MCC_CMD */
> +#define MCC_Q_CMD_TAG_MASK ((MAX_MCC_CMD << 1) - 1)
> +
> #define PAGE_SHIFT_4K 12
> #define PAGE_SIZE_4K (1 << PAGE_SHIFT_4K)
> #define mcc_timeout 120000 /* 12s timeout */
> diff --git a/drivers/scsi/be2iscsi/be_cmds.c b/drivers/scsi/be2iscsi/be_cmds.c
> index e8e9d22..c5e7739 100644
> --- a/drivers/scsi/be2iscsi/be_cmds.c
> +++ b/drivers/scsi/be2iscsi/be_cmds.c
> @@ -125,7 +125,7 @@ unsigned int alloc_mcc_tag(struct beiscsi_hba *phba)
> if (phba->ctrl.mcc_tag_available) {
> tag = phba->ctrl.mcc_tag[phba->ctrl.mcc_alloc_index];
> phba->ctrl.mcc_tag[phba->ctrl.mcc_alloc_index] = 0;
> - phba->ctrl.mcc_numtag[tag] = 0;
> + phba->ctrl.mcc_tag_status[tag] = 0;
> phba->ctrl.ptag_state[tag].tag_state = 0;
> }
> if (tag) {
> @@ -157,7 +157,7 @@ int beiscsi_mccq_compl(struct beiscsi_hba *phba,
> struct be_dma_mem *mbx_cmd_mem)
> {
> int rc = 0;
> - uint32_t mcc_tag_response;
> + uint32_t mcc_tag_status;
> uint16_t status = 0, addl_status = 0, wrb_num = 0;
> struct be_mcc_wrb *temp_wrb;
> struct be_cmd_req_hdr *mbx_hdr;
> @@ -172,7 +172,7 @@ int beiscsi_mccq_compl(struct beiscsi_hba *phba,
> /* wait for the mccq completion */
> rc = wait_event_interruptible_timeout(
> phba->ctrl.mcc_wait[tag],
> - phba->ctrl.mcc_numtag[tag],
> + phba->ctrl.mcc_tag_status[tag],
> msecs_to_jiffies(
> BEISCSI_HOST_MBX_TIMEOUT));
> /**
> @@ -209,15 +209,15 @@ int beiscsi_mccq_compl(struct beiscsi_hba *phba,
> }
>
> rc = 0;
> - mcc_tag_response = phba->ctrl.mcc_numtag[tag];
> - status = (mcc_tag_response & CQE_STATUS_MASK);
> - addl_status = ((mcc_tag_response & CQE_STATUS_ADDL_MASK) >>
> + mcc_tag_status = phba->ctrl.mcc_tag_status[tag];
> + status = (mcc_tag_status & CQE_STATUS_MASK);
> + addl_status = ((mcc_tag_status & CQE_STATUS_ADDL_MASK) >>
> CQE_STATUS_ADDL_SHIFT);
>
> if (mbx_cmd_mem) {
> mbx_hdr = (struct be_cmd_req_hdr *)mbx_cmd_mem->va;
> } else {
> - wrb_num = (mcc_tag_response & CQE_STATUS_WRB_MASK) >>
> + wrb_num = (mcc_tag_status & CQE_STATUS_WRB_MASK) >>
> CQE_STATUS_WRB_SHIFT;
> temp_wrb = (struct be_mcc_wrb *)queue_get_wrb(mccq, wrb_num);
> mbx_hdr = embedded_payload(temp_wrb);
> @@ -257,7 +257,7 @@ int beiscsi_mccq_compl(struct beiscsi_hba *phba,
> void free_mcc_tag(struct be_ctrl_info *ctrl, unsigned int tag)
> {
> spin_lock(&ctrl->mcc_lock);
> - tag = tag & 0x000000FF;
> + tag = tag & MCC_Q_CMD_TAG_MASK;
> ctrl->mcc_tag[ctrl->mcc_free_index] = tag;
> if (ctrl->mcc_free_index == (MAX_MCC_CMD - 1))
> ctrl->mcc_free_index = 0;
> @@ -334,10 +334,11 @@ int be_mcc_compl_process_isr(struct be_ctrl_info *ctrl,
> struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev);
> u16 compl_status, extd_status;
> struct be_dma_mem *tag_mem;
> - unsigned short tag;
> + unsigned int tag, wrb_idx;
>
> be_dws_le_to_cpu(compl, 4);
> - tag = (compl->tag0 & 0x000000FF);
> + tag = (compl->tag0 & MCC_Q_CMD_TAG_MASK);
> + wrb_idx = (compl->tag0 & CQE_STATUS_WRB_MASK) >> CQE_STATUS_WRB_SHIFT;
>
> if (!test_bit(MCC_TAG_STATE_RUNNING,
> &ctrl->ptag_state[tag].tag_state)) {
> @@ -366,17 +367,18 @@ int be_mcc_compl_process_isr(struct be_ctrl_info *ctrl,
> }
>
> compl_status = (compl->status >> CQE_STATUS_COMPL_SHIFT) &
> - CQE_STATUS_COMPL_MASK;
> - /* The ctrl.mcc_numtag[tag] is filled with
> + CQE_STATUS_COMPL_MASK;
> + extd_status = (compl->status >> CQE_STATUS_EXTD_SHIFT) &
> + CQE_STATUS_EXTD_MASK;
> + /* The ctrl.mcc_tag_status[tag] is filled with
> * [31] = valid, [30:24] = Rsvd, [23:16] = wrb, [15:8] = extd_status,
> * [7:0] = compl_status
> */
> - extd_status = (compl->status >> CQE_STATUS_EXTD_SHIFT) &
> - CQE_STATUS_EXTD_MASK;
> - ctrl->mcc_numtag[tag] = 0x80000000;
> - ctrl->mcc_numtag[tag] |= (compl->tag0 & 0x00FF0000);
> - ctrl->mcc_numtag[tag] |= (extd_status & 0x000000FF) << 8;
> - ctrl->mcc_numtag[tag] |= (compl_status & 0x000000FF);
> + ctrl->mcc_tag_status[tag] = CQE_VALID_MASK;
> + ctrl->mcc_tag_status[tag] |= (wrb_idx << CQE_STATUS_WRB_SHIFT);
> + ctrl->mcc_tag_status[tag] |= (extd_status << CQE_STATUS_ADDL_SHIFT) &
> + CQE_STATUS_ADDL_MASK;
> + ctrl->mcc_tag_status[tag] |= (compl_status & CQE_STATUS_MASK);
>
> /* write ordering implied in wake_up_interruptible */
> clear_bit(MCC_TAG_STATE_RUNNING, &ctrl->ptag_state[tag].tag_state);
> @@ -844,7 +846,7 @@ struct be_mcc_wrb *wrb_from_mccq(struct beiscsi_hba *phba)
> WARN_ON(atomic_read(&mccq->used) >= mccq->len);
> wrb = queue_head_node(mccq);
> memset(wrb, 0, sizeof(*wrb));
> - wrb->tag0 = (mccq->head & 0x000000FF) << 16;
> + wrb->tag0 = (mccq->head << MCC_Q_WRB_IDX_SHIFT) & MCC_Q_WRB_IDX_MASK;
> queue_head_inc(mccq);
> atomic_inc(&mccq->used);
> return wrb;
> diff --git a/drivers/scsi/be2iscsi/be_cmds.h b/drivers/scsi/be2iscsi/be_cmds.h
> index 7caf585..adafd9c 100644
> --- a/drivers/scsi/be2iscsi/be_cmds.h
> +++ b/drivers/scsi/be2iscsi/be_cmds.h
> @@ -58,15 +58,16 @@ struct be_mcc_wrb {
> #define MCC_STATUS_ILLEGAL_FIELD 0x3
> #define MCC_STATUS_INSUFFICIENT_BUFFER 0x4
>
> -#define CQE_STATUS_COMPL_MASK 0xFFFF
> -#define CQE_STATUS_COMPL_SHIFT 0 /* bits 0 - 15 */
> -#define CQE_STATUS_EXTD_MASK 0xFFFF
> -#define CQE_STATUS_EXTD_SHIFT 16 /* bits 0 - 15 */
> +#define CQE_STATUS_COMPL_MASK 0xFFFF
> +#define CQE_STATUS_COMPL_SHIFT 0 /* bits 0 - 15 */
> +#define CQE_STATUS_EXTD_MASK 0xFFFF
> +#define CQE_STATUS_EXTD_SHIFT 16 /* bits 31 - 16 */
> #define CQE_STATUS_ADDL_MASK 0xFF00
> -#define CQE_STATUS_MASK 0xFF
> -#define CQE_STATUS_ADDL_SHIFT 0x08
> +#define CQE_STATUS_ADDL_SHIFT 8
> +#define CQE_STATUS_MASK 0xFF
> #define CQE_STATUS_WRB_MASK 0xFF0000
> #define CQE_STATUS_WRB_SHIFT 16
> +
> #define BEISCSI_HOST_MBX_TIMEOUT (110 * 1000)
> #define BEISCSI_FW_MBX_TIMEOUT 100
>
> diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c
> index 314fd2c..aaf39d4 100644
> --- a/drivers/scsi/be2iscsi/be_main.c
> +++ b/drivers/scsi/be2iscsi/be_main.c
> @@ -5241,11 +5241,12 @@ static int beiscsi_bsg_request(struct bsg_job *job)
>
> rc = wait_event_interruptible_timeout(
> phba->ctrl.mcc_wait[tag],
> - phba->ctrl.mcc_numtag[tag],
> + phba->ctrl.mcc_tag_status[tag],
> msecs_to_jiffies(
> BEISCSI_HOST_MBX_TIMEOUT));
> - extd_status = (phba->ctrl.mcc_numtag[tag] & 0x0000FF00) >> 8;
> - status = phba->ctrl.mcc_numtag[tag] & 0x000000FF;
> + extd_status = (phba->ctrl.mcc_tag_status[tag] &
> + CQE_STATUS_ADDL_MASK) >> CQE_STATUS_ADDL_SHIFT;
> + status = phba->ctrl.mcc_tag_status[tag] & CQE_STATUS_MASK;
> free_mcc_tag(&phba->ctrl, tag);
> resp = (struct be_cmd_resp_hdr *)nonemb_cmd.va;
> sg_copy_from_buffer(job->reply_payload.sg_list,
> @@ -5580,7 +5581,7 @@ static void beiscsi_eeh_resume(struct pci_dev *pdev)
> for (i = 0; i < MAX_MCC_CMD; i++) {
> init_waitqueue_head(&phba->ctrl.mcc_wait[i + 1]);
> phba->ctrl.mcc_tag[i] = i + 1;
> - phba->ctrl.mcc_numtag[i + 1] = 0;
> + phba->ctrl.mcc_tag_status[i + 1] = 0;
> phba->ctrl.mcc_tag_available++;
> }
>
> @@ -5739,7 +5740,7 @@ static int beiscsi_dev_probe(struct pci_dev *pcidev,
> for (i = 0; i < MAX_MCC_CMD; i++) {
> init_waitqueue_head(&phba->ctrl.mcc_wait[i + 1]);
> phba->ctrl.mcc_tag[i] = i + 1;
> - phba->ctrl.mcc_numtag[i + 1] = 0;
> + phba->ctrl.mcc_tag_status[i + 1] = 0;
> phba->ctrl.mcc_tag_available++;
> memset(&phba->ctrl.ptag_state[i].tag_mem_state, 0,
> sizeof(struct be_dma_mem));
> --
> 2.5.0
>
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Reviewed-by: Johannes Thumshirn <jthumsh...@suse.de>
--
Johannes Thumshirn Storage
jthumsh...@suse.de +49 911 74053 689
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
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