linux-imx

/*

 *  QLogic FCoE Offload Driver

 *  Copyright (c) 2016-2018 Cavium Inc.

 *

 *  This software is available under the terms of the GNU General Public License

 *  (GPL) Version 2, available from the file COPYING in the main directory of

 *  this source tree.

 */

#ifndef _QEDFC_H_

#define _QEDFC_H_

​

#include <scsi/libfcoe.h>

#include <scsi/libfc.h>

#include <scsi/fc/fc_fip.h>

#include <scsi/fc/fc_fc2.h>

#include <scsi/scsi_tcq.h>

#include <scsi/fc_encode.h>

#include <linux/version.h>

​

​

/* qedf_hsi.h needs to before included any qed includes */

#include "qedf_hsi.h"

​

#include <linux/qed/qed_if.h>

#include <linux/qed/qed_fcoe_if.h>

#include <linux/qed/qed_ll2_if.h>

#include "qedf_version.h"

#include "qedf_dbg.h"

#include "drv_fcoe_fw_funcs.h"

​

/* Helpers to extract upper and lower 32-bits of pointer */

#define U64_HI(val) ((u32)(((u64)(val)) >> 32))

#define U64_LO(val) ((u32)(((u64)(val)) & 0xffffffff))

​

#define QEDF_DESCR "QLogic FCoE Offload Driver"

#define QEDF_MODULE_NAME "qedf"

​

#define QEDF_MIN_XID        0

#define QEDF_MAX_SCSI_XID   (NUM_TASKS_PER_CONNECTION - 1)

#define QEDF_MAX_ELS_XID    4095

#define QEDF_FLOGI_RETRY_CNT    3

#define QEDF_RPORT_RETRY_CNT    255

#define QEDF_MAX_SESSIONS   1024

#define QEDF_MAX_PAYLOAD    2048

#define QEDF_MAX_BDS_PER_CMD    256

#define QEDF_MAX_BD_LEN     0xffff

#define QEDF_BD_SPLIT_SZ    0x1000

#define QEDF_PAGE_SIZE      4096

#define QED_HW_DMA_BOUNDARY     0xfff

#define QEDF_MAX_SGLEN_FOR_CACHESGL     ((1U << 16) - 1)

#define QEDF_MFS        (QEDF_MAX_PAYLOAD + \

    sizeof(struct fc_frame_header))

#define QEDF_MAX_NPIV       64

#define QEDF_TM_TIMEOUT     10

#define QEDF_ABORT_TIMEOUT  10

#define QEDF_CLEANUP_TIMEOUT    10

#define QEDF_MAX_CDB_LEN    16

​

#define UPSTREAM_REMOVE     1

#define UPSTREAM_KEEP       1

​

struct qedf_mp_req {

    uint32_t req_len;

    void *req_buf;

    dma_addr_t req_buf_dma;

    struct scsi_sge *mp_req_bd;

    dma_addr_t mp_req_bd_dma;

    struct fc_frame_header req_fc_hdr;

​

    uint32_t resp_len;

    void *resp_buf;

    dma_addr_t resp_buf_dma;

    struct scsi_sge *mp_resp_bd;

    dma_addr_t mp_resp_bd_dma;

    struct fc_frame_header resp_fc_hdr;

};

​

struct qedf_els_cb_arg {

    struct qedf_ioreq *aborted_io_req;

    struct qedf_ioreq *io_req;

    u8 op; /* Used to keep track of ELS op */

    uint16_t l2_oxid;

    u32 offset; /* Used for sequence cleanup */

    u8 r_ctl; /* Used for sequence cleanup */

};

​

enum qedf_ioreq_event {

    QEDF_IOREQ_EV_ABORT_SUCCESS,

    QEDF_IOREQ_EV_ABORT_FAILED,

    QEDF_IOREQ_EV_SEND_RRQ,

    QEDF_IOREQ_EV_ELS_TMO,

    QEDF_IOREQ_EV_ELS_ERR_DETECT,