qlnx/qlnxe/rdma_common.h

/*
 * Copyright (c) 2017-2018 Cavium, Inc.
 * All rights reserved.
 *
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions
 *  are met:
 *
 *  1. Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *  2. Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 *
 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 *  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 *  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 *  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 *  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 *  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 *  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 *  POSSIBILITY OF SUCH DAMAGE.
 *
 * $FreeBSD: stable/10/sys/dev/qlnx/qlnxe/rdma_common.h 337519 2018-08-09 01:39:47Z davidcs $
 *
 */

#ifndef __RDMA_COMMON__
#define __RDMA_COMMON__
/************************************************************************/
/* Add include to common rdma target for both eCore and protocol rdma driver */
/************************************************************************/

#define RDMA_RESERVED_LKEY                      (0)                     //Reserved lkey
#define RDMA_RING_PAGE_SIZE                     (0x1000)        //4KB pages

#define RDMA_MAX_SGE_PER_SQ_WQE         (4)             //max number of SGEs in a single request
#define RDMA_MAX_SGE_PER_RQ_WQE         (4)             //max number of SGEs in a single request

#define RDMA_MAX_DATA_SIZE_IN_WQE       (0x80000000)    //max size of data in single request

#define RDMA_REQ_RD_ATOMIC_ELM_SIZE             (0x50)
#define RDMA_RESP_RD_ATOMIC_ELM_SIZE    (0x20)

#define RDMA_MAX_CQS                            (64*1024)
#define RDMA_MAX_TIDS                           (128*1024-1)
#define RDMA_MAX_PDS                            (64*1024)
#define RDMA_MAX_XRC_SRQS                       (1024)
#define RDMA_MAX_SRQS                           (32*1024)

#define RDMA_NUM_STATISTIC_COUNTERS                     MAX_NUM_VPORTS
#define RDMA_NUM_STATISTIC_COUNTERS_K2                  MAX_NUM_VPORTS_K2
#define RDMA_NUM_STATISTIC_COUNTERS_BB                  MAX_NUM_VPORTS_BB

#define RDMA_TASK_TYPE (PROTOCOLID_ROCE)


struct rdma_srq_id
{
        __le16 srq_idx /* SRQ index */;
        __le16 opaque_fid;
};


struct rdma_srq_producers
{
        __le32 sge_prod /* Current produced sge in SRQ */;
        __le32 wqe_prod /* Current produced WQE to SRQ */;
};

/*
 * rdma completion notification queue element
 */
struct rdma_cnqe
{
	struct regpair cq_handle;
};


struct rdma_cqe_responder
{
	struct regpair srq_wr_id;
	struct regpair qp_handle;
	__le32 imm_data_or_inv_r_Key /* immediate data in case imm_flg is set, or invalidated r_key in case inv_flg is set */;
	__le32 length;
	__le32 imm_data_hi /* High bytes of immediate data in case imm_flg is set in iWARP only */;
	__le16 rq_cons /* Valid only when status is WORK_REQUEST_FLUSHED_ERR. Indicates an aggregative flush on all posted RQ WQEs until the reported rq_cons. */;
	u8 flags;
#define RDMA_CQE_RESPONDER_TOGGLE_BIT_MASK  0x1 /* indicates a valid completion written by FW. FW toggle this bit each time it finishes producing all PBL entries */
#define RDMA_CQE_RESPONDER_TOGGLE_BIT_SHIFT 0
#define RDMA_CQE_RESPONDER_TYPE_MASK        0x3 /*  (use enum rdma_cqe_type) */
#define RDMA_CQE_RESPONDER_TYPE_SHIFT       1
#define RDMA_CQE_RESPONDER_INV_FLG_MASK     0x1 /* r_key invalidated indicator */
#define RDMA_CQE_RESPONDER_INV_FLG_SHIFT    3
#define RDMA_CQE_RESPONDER_IMM_FLG_MASK     0x1 /* immediate data indicator */
#define RDMA_CQE_RESPONDER_IMM_FLG_SHIFT    4
#define RDMA_CQE_RESPONDER_RDMA_FLG_MASK    0x1 /* 1=this CQE relates to an RDMA Write. 0=Send. */
#define RDMA_CQE_RESPONDER_RDMA_FLG_SHIFT   5
#define RDMA_CQE_RESPONDER_RESERVED2_MASK   0x3
#define RDMA_CQE_RESPONDER_RESERVED2_SHIFT  6
	u8 status;
};

struct rdma_cqe_requester
{
	__le16 sq_cons;
	__le16 reserved0;
	__le32 reserved1;
	struct regpair qp_handle;
	struct regpair reserved2;
	__le32 reserved3;
	__le16 reserved4;
	u8 flags;
#define RDMA_CQE_REQUESTER_TOGGLE_BIT_MASK  0x1 /* indicates a valid completion written by FW. FW toggle this bit each time it finishes producing all PBL entries */
#define RDMA_CQE_REQUESTER_TOGGLE_BIT_SHIFT 0
#define RDMA_CQE_REQUESTER_TYPE_MASK        0x3 /*  (use enum rdma_cqe_type) */
#define RDMA_CQE_REQUESTER_TYPE_SHIFT       1
#define RDMA_CQE_REQUESTER_RESERVED5_MASK   0x1F
#define RDMA_CQE_REQUESTER_RESERVED5_SHIFT  3
	u8 status;
};

struct rdma_cqe_common
{
	struct regpair reserved0;
	struct regpair qp_handle;
	__le16 reserved1[7];
	u8 flags;
#define RDMA_CQE_COMMON_TOGGLE_BIT_MASK  0x1 /* indicates a valid completion written by FW. FW toggle this bit each time it finishes producing all PBL entries */
#define RDMA_CQE_COMMON_TOGGLE_BIT_SHIFT 0
#define RDMA_CQE_COMMON_TYPE_MASK        0x3 /*  (use enum rdma_cqe_type) */
#define RDMA_CQE_COMMON_TYPE_SHIFT       1
#define RDMA_CQE_COMMON_RESERVED2_MASK   0x1F
#define RDMA_CQE_COMMON_RESERVED2_SHIFT  3
	u8 status;
};

/*
 * rdma completion queue element
 */
union rdma_cqe
{
	struct rdma_cqe_responder resp;
	struct rdma_cqe_requester req;
	struct rdma_cqe_common cmn;
};


/*
 * CQE requester status enumeration
 */
enum rdma_cqe_requester_status_enum
{
	RDMA_CQE_REQ_STS_OK,
	RDMA_CQE_REQ_STS_BAD_RESPONSE_ERR,
	RDMA_CQE_REQ_STS_LOCAL_LENGTH_ERR,
	RDMA_CQE_REQ_STS_LOCAL_QP_OPERATION_ERR,
	RDMA_CQE_REQ_STS_LOCAL_PROTECTION_ERR,
	RDMA_CQE_REQ_STS_MEMORY_MGT_OPERATION_ERR,
	RDMA_CQE_REQ_STS_REMOTE_INVALID_REQUEST_ERR,
	RDMA_CQE_REQ_STS_REMOTE_ACCESS_ERR,
	RDMA_CQE_REQ_STS_REMOTE_OPERATION_ERR,
	RDMA_CQE_REQ_STS_RNR_NAK_RETRY_CNT_ERR,
	RDMA_CQE_REQ_STS_TRANSPORT_RETRY_CNT_ERR,
	RDMA_CQE_REQ_STS_WORK_REQUEST_FLUSHED_ERR,
	MAX_RDMA_CQE_REQUESTER_STATUS_ENUM
};


/*
 * CQE responder status enumeration
 */
enum rdma_cqe_responder_status_enum
{
	RDMA_CQE_RESP_STS_OK,
	RDMA_CQE_RESP_STS_LOCAL_ACCESS_ERR,
	RDMA_CQE_RESP_STS_LOCAL_LENGTH_ERR,
	RDMA_CQE_RESP_STS_LOCAL_QP_OPERATION_ERR,
	RDMA_CQE_RESP_STS_LOCAL_PROTECTION_ERR,
	RDMA_CQE_RESP_STS_MEMORY_MGT_OPERATION_ERR,
	RDMA_CQE_RESP_STS_REMOTE_INVALID_REQUEST_ERR,
	RDMA_CQE_RESP_STS_WORK_REQUEST_FLUSHED_ERR,
	MAX_RDMA_CQE_RESPONDER_STATUS_ENUM
};


/*
 * CQE type enumeration
 */
enum rdma_cqe_type
{
	RDMA_CQE_TYPE_REQUESTER,
	RDMA_CQE_TYPE_RESPONDER_RQ,
	RDMA_CQE_TYPE_RESPONDER_SRQ,
	RDMA_CQE_TYPE_INVALID,
	MAX_RDMA_CQE_TYPE
};


/*
 * DIF Block size options
 */
enum rdma_dif_block_size
{
	RDMA_DIF_BLOCK_512=0,
	RDMA_DIF_BLOCK_4096=1,
	MAX_RDMA_DIF_BLOCK_SIZE
};


/*
 * DIF CRC initial value
 */
enum rdma_dif_crc_seed
{
	RDMA_DIF_CRC_SEED_0000=0,
	RDMA_DIF_CRC_SEED_FFFF=1,
	MAX_RDMA_DIF_CRC_SEED
};


/*
 * RDMA DIF Error Result Structure
 */
struct rdma_dif_error_result
{
	__le32 error_intervals /* Total number of error intervals in the IO. */;
	__le32 dif_error_1st_interval /* Number of the first interval that contained error. Set to 0xFFFFFFFF if error occurred in the Runt Block. */;
	u8 flags;
#define RDMA_DIF_ERROR_RESULT_DIF_ERROR_TYPE_CRC_MASK      0x1 /* CRC error occurred. */
#define RDMA_DIF_ERROR_RESULT_DIF_ERROR_TYPE_CRC_SHIFT     0
#define RDMA_DIF_ERROR_RESULT_DIF_ERROR_TYPE_APP_TAG_MASK  0x1 /* App Tag error occurred. */
#define RDMA_DIF_ERROR_RESULT_DIF_ERROR_TYPE_APP_TAG_SHIFT 1
#define RDMA_DIF_ERROR_RESULT_DIF_ERROR_TYPE_REF_TAG_MASK  0x1 /* Ref Tag error occurred. */
#define RDMA_DIF_ERROR_RESULT_DIF_ERROR_TYPE_REF_TAG_SHIFT 2
#define RDMA_DIF_ERROR_RESULT_RESERVED0_MASK               0xF
#define RDMA_DIF_ERROR_RESULT_RESERVED0_SHIFT              3
#define RDMA_DIF_ERROR_RESULT_TOGGLE_BIT_MASK              0x1 /* Used to indicate the structure is valid. Toggles each time an invalidate region is performed. */
#define RDMA_DIF_ERROR_RESULT_TOGGLE_BIT_SHIFT             7
	u8 reserved1[55] /* Pad to 64 bytes to ensure efficient word line writing. */;
};


/*
 * DIF IO direction
 */
enum rdma_dif_io_direction_flg
{
	RDMA_DIF_DIR_RX=0,
	RDMA_DIF_DIR_TX=1,
	MAX_RDMA_DIF_IO_DIRECTION_FLG
};


/*
 * RDMA DIF Runt Result Structure
 */
struct rdma_dif_runt_result
{
	__le16 guard_tag /* CRC result of received IO. */;
	__le16 reserved[3];
};


/*
 * memory window type enumeration
 */
enum rdma_mw_type
{
	RDMA_MW_TYPE_1,
	RDMA_MW_TYPE_2A,
	MAX_RDMA_MW_TYPE
};


struct rdma_rq_sge
{
	struct regpair addr;
	__le32 length;
	__le32 flags;
#define RDMA_RQ_SGE_L_KEY_MASK      0x3FFFFFF /* key of memory relating to this RQ */
#define RDMA_RQ_SGE_L_KEY_SHIFT     0
#define RDMA_RQ_SGE_NUM_SGES_MASK   0x7 /* first SGE - number of SGEs in this RQ WQE. Other SGEs - should be set to 0 */
#define RDMA_RQ_SGE_NUM_SGES_SHIFT  26
#define RDMA_RQ_SGE_RESERVED0_MASK  0x7
#define RDMA_RQ_SGE_RESERVED0_SHIFT 29
};


struct rdma_sq_atomic_wqe
{
	__le32 reserved1;
	__le32 length /* Total data length (8 bytes for Atomic) */;
	__le32 xrc_srq /* Valid only when XRC is set for the QP */;
	u8 req_type /* Type of WQE */;
	u8 flags;
#define RDMA_SQ_ATOMIC_WQE_COMP_FLG_MASK         0x1 /* If set, completion will be generated when the WQE is completed */
#define RDMA_SQ_ATOMIC_WQE_COMP_FLG_SHIFT        0
#define RDMA_SQ_ATOMIC_WQE_RD_FENCE_FLG_MASK     0x1 /* If set, all pending RDMA read or Atomic operations will be completed before start processing this WQE */
#define RDMA_SQ_ATOMIC_WQE_RD_FENCE_FLG_SHIFT    1
#define RDMA_SQ_ATOMIC_WQE_INV_FENCE_FLG_MASK    0x1 /* If set, all pending operations will be completed before start processing this WQE */
#define RDMA_SQ_ATOMIC_WQE_INV_FENCE_FLG_SHIFT   2
#define RDMA_SQ_ATOMIC_WQE_SE_FLG_MASK           0x1 /* Dont care for atomic wqe */
#define RDMA_SQ_ATOMIC_WQE_SE_FLG_SHIFT          3
#define RDMA_SQ_ATOMIC_WQE_INLINE_FLG_MASK       0x1 /* Should be 0 for atomic wqe */
#define RDMA_SQ_ATOMIC_WQE_INLINE_FLG_SHIFT      4
#define RDMA_SQ_ATOMIC_WQE_DIF_ON_HOST_FLG_MASK  0x1 /* Should be 0 for atomic wqe */
#define RDMA_SQ_ATOMIC_WQE_DIF_ON_HOST_FLG_SHIFT 5
#define RDMA_SQ_ATOMIC_WQE_RESERVED0_MASK        0x3
#define RDMA_SQ_ATOMIC_WQE_RESERVED0_SHIFT       6
	u8 wqe_size /* Size of WQE in 16B chunks including SGE */;
	u8 prev_wqe_size /* Previous WQE size in 16B chunks */;
	struct regpair remote_va /* remote virtual address */;
	__le32 r_key /* Remote key */;
	__le32 reserved2;
	struct regpair cmp_data /* Data to compare in case of ATOMIC_CMP_AND_SWAP */;
	struct regpair swap_data /* Swap or add data */;
};


/*
 * First element (16 bytes) of atomic wqe
 */
struct rdma_sq_atomic_wqe_1st
{
	__le32 reserved1;
	__le32 length /* Total data length (8 bytes for Atomic) */;
	__le32 xrc_srq /* Valid only when XRC is set for the QP */;
	u8 req_type /* Type of WQE */;
	u8 flags;
#define RDMA_SQ_ATOMIC_WQE_1ST_COMP_FLG_MASK       0x1 /* If set, completion will be generated when the WQE is completed */
#define RDMA_SQ_ATOMIC_WQE_1ST_COMP_FLG_SHIFT      0
#define RDMA_SQ_ATOMIC_WQE_1ST_RD_FENCE_FLG_MASK   0x1 /* If set, all pending RDMA read or Atomic operations will be completed before start processing this WQE */
#define RDMA_SQ_ATOMIC_WQE_1ST_RD_FENCE_FLG_SHIFT  1
#define RDMA_SQ_ATOMIC_WQE_1ST_INV_FENCE_FLG_MASK  0x1 /* If set, all pending operations will be completed before start processing this WQE */
#define RDMA_SQ_ATOMIC_WQE_1ST_INV_FENCE_FLG_SHIFT 2
#define RDMA_SQ_ATOMIC_WQE_1ST_SE_FLG_MASK         0x1 /* Dont care for atomic wqe */
#define RDMA_SQ_ATOMIC_WQE_1ST_SE_FLG_SHIFT        3
#define RDMA_SQ_ATOMIC_WQE_1ST_INLINE_FLG_MASK     0x1 /* Should be 0 for atomic wqe */
#define RDMA_SQ_ATOMIC_WQE_1ST_INLINE_FLG_SHIFT    4
#define RDMA_SQ_ATOMIC_WQE_1ST_RESERVED0_MASK      0x7
#define RDMA_SQ_ATOMIC_WQE_1ST_RESERVED0_SHIFT     5
	u8 wqe_size /* Size of WQE in 16B chunks including all SGEs. Set to number of SGEs + 1. */;
	u8 prev_wqe_size /* Previous WQE size in 16B chunks */;
};


/*
 * Second element (16 bytes) of atomic wqe
 */
struct rdma_sq_atomic_wqe_2nd
{
	struct regpair remote_va /* remote virtual address */;
	__le32 r_key /* Remote key */;
	__le32 reserved2;
};


/*
 * Third element (16 bytes) of atomic wqe
 */
struct rdma_sq_atomic_wqe_3rd
{
	struct regpair cmp_data /* Data to compare in case of ATOMIC_CMP_AND_SWAP */;
	struct regpair swap_data /* Swap or add data */;
};


struct rdma_sq_bind_wqe
{
	struct regpair addr;
	__le32 l_key;
	u8 req_type /* Type of WQE */;
	u8 flags;
#define RDMA_SQ_BIND_WQE_COMP_FLG_MASK       0x1 /* If set, completion will be generated when the WQE is completed */
#define RDMA_SQ_BIND_WQE_COMP_FLG_SHIFT      0
#define RDMA_SQ_BIND_WQE_RD_FENCE_FLG_MASK   0x1 /* If set, all pending RDMA read or Atomic operations will be completed before start processing this WQE */
#define RDMA_SQ_BIND_WQE_RD_FENCE_FLG_SHIFT  1
#define RDMA_SQ_BIND_WQE_INV_FENCE_FLG_MASK  0x1 /* If set, all pending operations will be completed before start processing this WQE */
#define RDMA_SQ_BIND_WQE_INV_FENCE_FLG_SHIFT 2
#define RDMA_SQ_BIND_WQE_SE_FLG_MASK         0x1 /* Dont care for bind wqe */
#define RDMA_SQ_BIND_WQE_SE_FLG_SHIFT        3
#define RDMA_SQ_BIND_WQE_INLINE_FLG_MASK     0x1 /* Should be 0 for bind wqe */
#define RDMA_SQ_BIND_WQE_INLINE_FLG_SHIFT    4
#define RDMA_SQ_BIND_WQE_RESERVED0_MASK      0x7
#define RDMA_SQ_BIND_WQE_RESERVED0_SHIFT     5
	u8 wqe_size /* Size of WQE in 16B chunks */;
	u8 prev_wqe_size /* Previous WQE size in 16B chunks */;
	u8 bind_ctrl;
#define RDMA_SQ_BIND_WQE_ZERO_BASED_MASK     0x1 /* zero based indication */
#define RDMA_SQ_BIND_WQE_ZERO_BASED_SHIFT    0
#define RDMA_SQ_BIND_WQE_MW_TYPE_MASK        0x1 /*  (use enum rdma_mw_type) */
#define RDMA_SQ_BIND_WQE_MW_TYPE_SHIFT       1
#define RDMA_SQ_BIND_WQE_RESERVED1_MASK      0x3F
#define RDMA_SQ_BIND_WQE_RESERVED1_SHIFT     2
	u8 access_ctrl;
#define RDMA_SQ_BIND_WQE_REMOTE_READ_MASK    0x1
#define RDMA_SQ_BIND_WQE_REMOTE_READ_SHIFT   0
#define RDMA_SQ_BIND_WQE_REMOTE_WRITE_MASK   0x1
#define RDMA_SQ_BIND_WQE_REMOTE_WRITE_SHIFT  1
#define RDMA_SQ_BIND_WQE_ENABLE_ATOMIC_MASK  0x1
#define RDMA_SQ_BIND_WQE_ENABLE_ATOMIC_SHIFT 2
#define RDMA_SQ_BIND_WQE_LOCAL_READ_MASK     0x1
#define RDMA_SQ_BIND_WQE_LOCAL_READ_SHIFT    3
#define RDMA_SQ_BIND_WQE_LOCAL_WRITE_MASK    0x1
#define RDMA_SQ_BIND_WQE_LOCAL_WRITE_SHIFT   4
#define RDMA_SQ_BIND_WQE_RESERVED2_MASK      0x7
#define RDMA_SQ_BIND_WQE_RESERVED2_SHIFT     5
	u8 reserved3;
	u8 length_hi /* upper 8 bits of the registered MW length */;
	__le32 length_lo /* lower 32 bits of the registered MW length */;
	__le32 parent_l_key /* l_key of the parent MR */;
	__le32 reserved4;
};


/*
 * First element (16 bytes) of bind wqe
 */
struct rdma_sq_bind_wqe_1st
{
	struct regpair addr;
	__le32 l_key;
	u8 req_type /* Type of WQE */;
	u8 flags;
#define RDMA_SQ_BIND_WQE_1ST_COMP_FLG_MASK       0x1 /* If set, completion will be generated when the WQE is completed */
#define RDMA_SQ_BIND_WQE_1ST_COMP_FLG_SHIFT      0
#define RDMA_SQ_BIND_WQE_1ST_RD_FENCE_FLG_MASK   0x1 /* If set, all pending RDMA read or Atomic operations will be completed before start processing this WQE */
#define RDMA_SQ_BIND_WQE_1ST_RD_FENCE_FLG_SHIFT  1
#define RDMA_SQ_BIND_WQE_1ST_INV_FENCE_FLG_MASK  0x1 /* If set, all pending operations will be completed before start processing this WQE */
#define RDMA_SQ_BIND_WQE_1ST_INV_FENCE_FLG_SHIFT 2
#define RDMA_SQ_BIND_WQE_1ST_SE_FLG_MASK         0x1 /* Dont care for bind wqe */
#define RDMA_SQ_BIND_WQE_1ST_SE_FLG_SHIFT        3
#define RDMA_SQ_BIND_WQE_1ST_INLINE_FLG_MASK     0x1 /* Should be 0 for bind wqe */
#define RDMA_SQ_BIND_WQE_1ST_INLINE_FLG_SHIFT    4
#define RDMA_SQ_BIND_WQE_1ST_RESERVED0_MASK      0x7
#define RDMA_SQ_BIND_WQE_1ST_RESERVED0_SHIFT     5
	u8 wqe_size /* Size of WQE in 16B chunks */;
	u8 prev_wqe_size /* Previous WQE size in 16B chunks */;
};


/*
 * Second element (16 bytes) of bind wqe
 */
struct rdma_sq_bind_wqe_2nd
{
	u8 bind_ctrl;
#define RDMA_SQ_BIND_WQE_2ND_ZERO_BASED_MASK     0x1 /* zero based indication */
#define RDMA_SQ_BIND_WQE_2ND_ZERO_BASED_SHIFT    0
#define RDMA_SQ_BIND_WQE_2ND_MW_TYPE_MASK        0x1 /*  (use enum rdma_mw_type) */
#define RDMA_SQ_BIND_WQE_2ND_MW_TYPE_SHIFT       1
#define RDMA_SQ_BIND_WQE_2ND_RESERVED1_MASK      0x3F
#define RDMA_SQ_BIND_WQE_2ND_RESERVED1_SHIFT     2
	u8 access_ctrl;
#define RDMA_SQ_BIND_WQE_2ND_REMOTE_READ_MASK    0x1
#define RDMA_SQ_BIND_WQE_2ND_REMOTE_READ_SHIFT   0
#define RDMA_SQ_BIND_WQE_2ND_REMOTE_WRITE_MASK   0x1
#define RDMA_SQ_BIND_WQE_2ND_REMOTE_WRITE_SHIFT  1
#define RDMA_SQ_BIND_WQE_2ND_ENABLE_ATOMIC_MASK  0x1
#define RDMA_SQ_BIND_WQE_2ND_ENABLE_ATOMIC_SHIFT 2
#define RDMA_SQ_BIND_WQE_2ND_LOCAL_READ_MASK     0x1
#define RDMA_SQ_BIND_WQE_2ND_LOCAL_READ_SHIFT    3
#define RDMA_SQ_BIND_WQE_2ND_LOCAL_WRITE_MASK    0x1
#define RDMA_SQ_BIND_WQE_2ND_LOCAL_WRITE_SHIFT   4
#define RDMA_SQ_BIND_WQE_2ND_RESERVED2_MASK      0x7
#define RDMA_SQ_BIND_WQE_2ND_RESERVED2_SHIFT     5
	u8 reserved3;
	u8 length_hi /* upper 8 bits of the registered MW length */;
	__le32 length_lo /* lower 32 bits of the registered MW length */;
	__le32 parent_l_key /* l_key of the parent MR */;
	__le32 reserved4;
};


/*
 * Structure with only the SQ WQE common fields. Size is of one SQ element (16B)
 */
struct rdma_sq_common_wqe
{
	__le32 reserved1[3];
	u8 req_type /* Type of WQE */;
	u8 flags;
#define RDMA_SQ_COMMON_WQE_COMP_FLG_MASK       0x1 /* If set, completion will be generated when the WQE is completed */
#define RDMA_SQ_COMMON_WQE_COMP_FLG_SHIFT      0
#define RDMA_SQ_COMMON_WQE_RD_FENCE_FLG_MASK   0x1 /* If set, all pending RDMA read or Atomic operations will be completed before start processing this WQE */
#define RDMA_SQ_COMMON_WQE_RD_FENCE_FLG_SHIFT  1
#define RDMA_SQ_COMMON_WQE_INV_FENCE_FLG_MASK  0x1 /* If set, all pending operations will be completed before start processing this WQE */
#define RDMA_SQ_COMMON_WQE_INV_FENCE_FLG_SHIFT 2
#define RDMA_SQ_COMMON_WQE_SE_FLG_MASK         0x1 /* If set, signal the responder to generate a solicited event on this WQE (only relevant in SENDs and RDMA write with Imm) */
#define RDMA_SQ_COMMON_WQE_SE_FLG_SHIFT        3
#define RDMA_SQ_COMMON_WQE_INLINE_FLG_MASK     0x1 /* if set, indicates inline data is following this WQE instead of SGEs (only relevant in SENDs and RDMA writes) */
#define RDMA_SQ_COMMON_WQE_INLINE_FLG_SHIFT    4
#define RDMA_SQ_COMMON_WQE_RESERVED0_MASK      0x7
#define RDMA_SQ_COMMON_WQE_RESERVED0_SHIFT     5
	u8 wqe_size /* Size of WQE in 16B chunks including all SGEs or inline data. In case there are SGEs: set to number of SGEs + 1. In case of inline data: set to the whole number of 16B which contain the inline data + 1. */;
	u8 prev_wqe_size /* Previous WQE size in 16B chunks */;
};


struct rdma_sq_fmr_wqe
{
	struct regpair addr;
	__le32 l_key;
	u8 req_type /* Type of WQE */;
	u8 flags;
#define RDMA_SQ_FMR_WQE_COMP_FLG_MASK                0x1 /* If set, completion will be generated when the WQE is completed */
#define RDMA_SQ_FMR_WQE_COMP_FLG_SHIFT               0
#define RDMA_SQ_FMR_WQE_RD_FENCE_FLG_MASK            0x1 /* If set, all pending RDMA read or Atomic operations will be completed before start processing this WQE */
#define RDMA_SQ_FMR_WQE_RD_FENCE_FLG_SHIFT           1
#define RDMA_SQ_FMR_WQE_INV_FENCE_FLG_MASK           0x1 /* If set, all pending operations will be completed before start processing this WQE */
#define RDMA_SQ_FMR_WQE_INV_FENCE_FLG_SHIFT          2
#define RDMA_SQ_FMR_WQE_SE_FLG_MASK                  0x1 /* Dont care for FMR wqe */
#define RDMA_SQ_FMR_WQE_SE_FLG_SHIFT                 3
#define RDMA_SQ_FMR_WQE_INLINE_FLG_MASK              0x1 /* Should be 0 for FMR wqe */
#define RDMA_SQ_FMR_WQE_INLINE_FLG_SHIFT             4
#define RDMA_SQ_FMR_WQE_DIF_ON_HOST_FLG_MASK         0x1 /* If set, indicated host memory of this WQE is DIF protected. */
#define RDMA_SQ_FMR_WQE_DIF_ON_HOST_FLG_SHIFT        5
#define RDMA_SQ_FMR_WQE_RESERVED0_MASK               0x3
#define RDMA_SQ_FMR_WQE_RESERVED0_SHIFT              6
	u8 wqe_size /* Size of WQE in 16B chunks */;
	u8 prev_wqe_size /* Previous WQE size in 16B chunks */;
	u8 fmr_ctrl;
#define RDMA_SQ_FMR_WQE_PAGE_SIZE_LOG_MASK           0x1F /* 0 is 4k, 1 is 8k... */
#define RDMA_SQ_FMR_WQE_PAGE_SIZE_LOG_SHIFT          0
#define RDMA_SQ_FMR_WQE_ZERO_BASED_MASK              0x1 /* zero based indication */
#define RDMA_SQ_FMR_WQE_ZERO_BASED_SHIFT             5
#define RDMA_SQ_FMR_WQE_BIND_EN_MASK                 0x1 /* indication whether bind is enabled for this MR */
#define RDMA_SQ_FMR_WQE_BIND_EN_SHIFT                6
#define RDMA_SQ_FMR_WQE_RESERVED1_MASK               0x1
#define RDMA_SQ_FMR_WQE_RESERVED1_SHIFT              7
	u8 access_ctrl;
#define RDMA_SQ_FMR_WQE_REMOTE_READ_MASK             0x1
#define RDMA_SQ_FMR_WQE_REMOTE_READ_SHIFT            0
#define RDMA_SQ_FMR_WQE_REMOTE_WRITE_MASK            0x1
#define RDMA_SQ_FMR_WQE_REMOTE_WRITE_SHIFT           1
#define RDMA_SQ_FMR_WQE_ENABLE_ATOMIC_MASK           0x1
#define RDMA_SQ_FMR_WQE_ENABLE_ATOMIC_SHIFT          2
#define RDMA_SQ_FMR_WQE_LOCAL_READ_MASK              0x1
#define RDMA_SQ_FMR_WQE_LOCAL_READ_SHIFT             3
#define RDMA_SQ_FMR_WQE_LOCAL_WRITE_MASK             0x1
#define RDMA_SQ_FMR_WQE_LOCAL_WRITE_SHIFT            4
#define RDMA_SQ_FMR_WQE_RESERVED2_MASK               0x7
#define RDMA_SQ_FMR_WQE_RESERVED2_SHIFT              5
	u8 reserved3;
	u8 length_hi /* upper 8 bits of the registered MR length */;
	__le32 length_lo /* lower 32 bits of the registered MR length. In case of DIF the length is specified including the DIF guards. */;
	struct regpair pbl_addr /* Address of PBL */;
	__le32 dif_base_ref_tag /* Ref tag of the first DIF Block. */;
	__le16 dif_app_tag /* App tag of all DIF Blocks. */;
	__le16 dif_app_tag_mask /* Bitmask for verifying dif_app_tag. */;
	__le16 dif_runt_crc_value /* In TX IO, in case the runt_valid_flg is set, this value is used to validate the last Block in the IO. */;
	__le16 dif_flags;
#define RDMA_SQ_FMR_WQE_DIF_IO_DIRECTION_FLG_MASK    0x1 /* 0=RX, 1=TX (use enum rdma_dif_io_direction_flg) */
#define RDMA_SQ_FMR_WQE_DIF_IO_DIRECTION_FLG_SHIFT   0
#define RDMA_SQ_FMR_WQE_DIF_BLOCK_SIZE_MASK          0x1 /* DIF block size. 0=512B 1=4096B (use enum rdma_dif_block_size) */
#define RDMA_SQ_FMR_WQE_DIF_BLOCK_SIZE_SHIFT         1
#define RDMA_SQ_FMR_WQE_DIF_RUNT_VALID_FLG_MASK      0x1 /* In TX IO, indicates the runt_value field is valid. In RX IO, indicates the calculated runt value is to be placed on host buffer. */
#define RDMA_SQ_FMR_WQE_DIF_RUNT_VALID_FLG_SHIFT     2
#define RDMA_SQ_FMR_WQE_DIF_VALIDATE_CRC_GUARD_MASK  0x1 /* In TX IO, indicates CRC of each DIF guard tag is checked. */
#define RDMA_SQ_FMR_WQE_DIF_VALIDATE_CRC_GUARD_SHIFT 3
#define RDMA_SQ_FMR_WQE_DIF_VALIDATE_REF_TAG_MASK    0x1 /* In TX IO, indicates Ref tag of each DIF guard tag is checked. */
#define RDMA_SQ_FMR_WQE_DIF_VALIDATE_REF_TAG_SHIFT   4
#define RDMA_SQ_FMR_WQE_DIF_VALIDATE_APP_TAG_MASK    0x1 /* In TX IO, indicates App tag of each DIF guard tag is checked. */
#define RDMA_SQ_FMR_WQE_DIF_VALIDATE_APP_TAG_SHIFT   5
#define RDMA_SQ_FMR_WQE_DIF_CRC_SEED_MASK            0x1 /* DIF CRC Seed to use. 0=0x000 1=0xFFFF (use enum rdma_dif_crc_seed) */
#define RDMA_SQ_FMR_WQE_DIF_CRC_SEED_SHIFT           6
#define RDMA_SQ_FMR_WQE_DIF_RX_REF_TAG_CONST_MASK    0x1 /* In RX IO, Ref Tag will remain at constant value of dif_base_ref_tag */
#define RDMA_SQ_FMR_WQE_DIF_RX_REF_TAG_CONST_SHIFT   7
#define RDMA_SQ_FMR_WQE_RESERVED4_MASK               0xFF
#define RDMA_SQ_FMR_WQE_RESERVED4_SHIFT              8
	__le32 Reserved5;
};


/*
 * First element (16 bytes) of fmr wqe
 */
struct rdma_sq_fmr_wqe_1st
{
	struct regpair addr;
	__le32 l_key;
	u8 req_type /* Type of WQE */;
	u8 flags;
#define RDMA_SQ_FMR_WQE_1ST_COMP_FLG_MASK         0x1 /* If set, completion will be generated when the WQE is completed */
#define RDMA_SQ_FMR_WQE_1ST_COMP_FLG_SHIFT        0
#define RDMA_SQ_FMR_WQE_1ST_RD_FENCE_FLG_MASK     0x1 /* If set, all pending RDMA read or Atomic operations will be completed before start processing this WQE */
#define RDMA_SQ_FMR_WQE_1ST_RD_FENCE_FLG_SHIFT    1
#define RDMA_SQ_FMR_WQE_1ST_INV_FENCE_FLG_MASK    0x1 /* If set, all pending operations will be completed before start processing this WQE */
#define RDMA_SQ_FMR_WQE_1ST_INV_FENCE_FLG_SHIFT   2
#define RDMA_SQ_FMR_WQE_1ST_SE_FLG_MASK           0x1 /* Dont care for FMR wqe */
#define RDMA_SQ_FMR_WQE_1ST_SE_FLG_SHIFT          3
#define RDMA_SQ_FMR_WQE_1ST_INLINE_FLG_MASK       0x1 /* Should be 0 for FMR wqe */
#define RDMA_SQ_FMR_WQE_1ST_INLINE_FLG_SHIFT      4
#define RDMA_SQ_FMR_WQE_1ST_DIF_ON_HOST_FLG_MASK  0x1 /* If set, indicated host memory of this WQE is DIF protected. */
#define RDMA_SQ_FMR_WQE_1ST_DIF_ON_HOST_FLG_SHIFT 5
#define RDMA_SQ_FMR_WQE_1ST_RESERVED0_MASK        0x3
#define RDMA_SQ_FMR_WQE_1ST_RESERVED0_SHIFT       6
	u8 wqe_size /* Size of WQE in 16B chunks */;
	u8 prev_wqe_size /* Previous WQE size in 16B chunks */;
};


/*
 * Second element (16 bytes) of fmr wqe
 */
struct rdma_sq_fmr_wqe_2nd
{
	u8 fmr_ctrl;
#define RDMA_SQ_FMR_WQE_2ND_PAGE_SIZE_LOG_MASK  0x1F /* 0 is 4k, 1 is 8k... */
#define RDMA_SQ_FMR_WQE_2ND_PAGE_SIZE_LOG_SHIFT 0
#define RDMA_SQ_FMR_WQE_2ND_ZERO_BASED_MASK     0x1 /* zero based indication */
#define RDMA_SQ_FMR_WQE_2ND_ZERO_BASED_SHIFT    5
#define RDMA_SQ_FMR_WQE_2ND_BIND_EN_MASK        0x1 /* indication whether bind is enabled for this MR */
#define RDMA_SQ_FMR_WQE_2ND_BIND_EN_SHIFT       6
#define RDMA_SQ_FMR_WQE_2ND_RESERVED1_MASK      0x1
#define RDMA_SQ_FMR_WQE_2ND_RESERVED1_SHIFT     7
	u8 access_ctrl;
#define RDMA_SQ_FMR_WQE_2ND_REMOTE_READ_MASK    0x1
#define RDMA_SQ_FMR_WQE_2ND_REMOTE_READ_SHIFT   0
#define RDMA_SQ_FMR_WQE_2ND_REMOTE_WRITE_MASK   0x1
#define RDMA_SQ_FMR_WQE_2ND_REMOTE_WRITE_SHIFT  1
#define RDMA_SQ_FMR_WQE_2ND_ENABLE_ATOMIC_MASK  0x1
#define RDMA_SQ_FMR_WQE_2ND_ENABLE_ATOMIC_SHIFT 2
#define RDMA_SQ_FMR_WQE_2ND_LOCAL_READ_MASK     0x1
#define RDMA_SQ_FMR_WQE_2ND_LOCAL_READ_SHIFT    3
#define RDMA_SQ_FMR_WQE_2ND_LOCAL_WRITE_MASK    0x1
#define RDMA_SQ_FMR_WQE_2ND_LOCAL_WRITE_SHIFT   4
#define RDMA_SQ_FMR_WQE_2ND_RESERVED2_MASK      0x7
#define RDMA_SQ_FMR_WQE_2ND_RESERVED2_SHIFT     5
	u8 reserved3;
	u8 length_hi /* upper 8 bits of the registered MR length */;
	__le32 length_lo /* lower 32 bits of the registered MR length. */;
	struct regpair pbl_addr /* Address of PBL */;
};


/*
 * Third element (16 bytes) of fmr wqe
 */
struct rdma_sq_fmr_wqe_3rd
{
	__le32 dif_base_ref_tag /* Ref tag of the first DIF Block. */;
	__le16 dif_app_tag /* App tag of all DIF Blocks. */;
	__le16 dif_app_tag_mask /* Bitmask for verifying dif_app_tag. */;
	__le16 dif_runt_crc_value /* In TX IO, in case the runt_valid_flg is set, this value is used to validate the last Block in the IO. */;
	__le16 dif_flags;
#define RDMA_SQ_FMR_WQE_3RD_DIF_IO_DIRECTION_FLG_MASK    0x1 /* 0=RX, 1=TX (use enum rdma_dif_io_direction_flg) */
#define RDMA_SQ_FMR_WQE_3RD_DIF_IO_DIRECTION_FLG_SHIFT   0
#define RDMA_SQ_FMR_WQE_3RD_DIF_BLOCK_SIZE_MASK          0x1 /* DIF block size. 0=512B 1=4096B (use enum rdma_dif_block_size) */
#define RDMA_SQ_FMR_WQE_3RD_DIF_BLOCK_SIZE_SHIFT         1
#define RDMA_SQ_FMR_WQE_3RD_DIF_RUNT_VALID_FLG_MASK      0x1 /* In TX IO, indicates the runt_value field is valid. In RX IO, indicates the calculated runt value is to be placed on host buffer. */
#define RDMA_SQ_FMR_WQE_3RD_DIF_RUNT_VALID_FLG_SHIFT     2
#define RDMA_SQ_FMR_WQE_3RD_DIF_VALIDATE_CRC_GUARD_MASK  0x1 /* In TX IO, indicates CRC of each DIF guard tag is checked. */
#define RDMA_SQ_FMR_WQE_3RD_DIF_VALIDATE_CRC_GUARD_SHIFT 3
#define RDMA_SQ_FMR_WQE_3RD_DIF_VALIDATE_REF_TAG_MASK    0x1 /* In TX IO, indicates Ref tag of each DIF guard tag is checked. */
#define RDMA_SQ_FMR_WQE_3RD_DIF_VALIDATE_REF_TAG_SHIFT   4
#define RDMA_SQ_FMR_WQE_3RD_DIF_VALIDATE_APP_TAG_MASK    0x1 /* In TX IO, indicates App tag of each DIF guard tag is checked. */
#define RDMA_SQ_FMR_WQE_3RD_DIF_VALIDATE_APP_TAG_SHIFT   5
#define RDMA_SQ_FMR_WQE_3RD_DIF_CRC_SEED_MASK            0x1 /* DIF CRC Seed to use. 0=0x000 1=0xFFFF (use enum rdma_dif_crc_seed) */
#define RDMA_SQ_FMR_WQE_3RD_DIF_CRC_SEED_SHIFT           6
#define RDMA_SQ_FMR_WQE_3RD_RESERVED4_MASK               0x1FF
#define RDMA_SQ_FMR_WQE_3RD_RESERVED4_SHIFT              7
	__le32 Reserved5;
};


struct rdma_sq_local_inv_wqe
{
	struct regpair reserved;
	__le32 inv_l_key /* The invalidate local key */;
	u8 req_type /* Type of WQE */;
	u8 flags;
#define RDMA_SQ_LOCAL_INV_WQE_COMP_FLG_MASK         0x1 /* If set, completion will be generated when the WQE is completed */
#define RDMA_SQ_LOCAL_INV_WQE_COMP_FLG_SHIFT        0
#define RDMA_SQ_LOCAL_INV_WQE_RD_FENCE_FLG_MASK     0x1 /* If set, all pending RDMA read or Atomic operations will be completed before start processing this WQE */
#define RDMA_SQ_LOCAL_INV_WQE_RD_FENCE_FLG_SHIFT    1
#define RDMA_SQ_LOCAL_INV_WQE_INV_FENCE_FLG_MASK    0x1 /* If set, all pending operations will be completed before start processing this WQE */
#define RDMA_SQ_LOCAL_INV_WQE_INV_FENCE_FLG_SHIFT   2
#define RDMA_SQ_LOCAL_INV_WQE_SE_FLG_MASK           0x1 /* Dont care for local invalidate wqe */
#define RDMA_SQ_LOCAL_INV_WQE_SE_FLG_SHIFT          3
#define RDMA_SQ_LOCAL_INV_WQE_INLINE_FLG_MASK       0x1 /* Should be 0 for local invalidate wqe */
#define RDMA_SQ_LOCAL_INV_WQE_INLINE_FLG_SHIFT      4
#define RDMA_SQ_LOCAL_INV_WQE_DIF_ON_HOST_FLG_MASK  0x1 /* If set, indicated host memory of this WQE is DIF protected. */
#define RDMA_SQ_LOCAL_INV_WQE_DIF_ON_HOST_FLG_SHIFT 5
#define RDMA_SQ_LOCAL_INV_WQE_RESERVED0_MASK        0x3
#define RDMA_SQ_LOCAL_INV_WQE_RESERVED0_SHIFT       6
	u8 wqe_size /* Size of WQE in 16B chunks */;
	u8 prev_wqe_size /* Previous WQE size in 16B chunks */;
};


struct rdma_sq_rdma_wqe
{
	__le32 imm_data /* The immediate data in case of RDMA_WITH_IMM */;
	__le32 length /* Total data length. If DIF on host is enabled, length does NOT include DIF guards. */;
	__le32 xrc_srq /* Valid only when XRC is set for the QP */;
	u8 req_type /* Type of WQE */;
	u8 flags;
#define RDMA_SQ_RDMA_WQE_COMP_FLG_MASK                  0x1 /* If set, completion will be generated when the WQE is completed */
#define RDMA_SQ_RDMA_WQE_COMP_FLG_SHIFT                 0
#define RDMA_SQ_RDMA_WQE_RD_FENCE_FLG_MASK              0x1 /* If set, all pending RDMA read or Atomic operations will be completed before start processing this WQE */
#define RDMA_SQ_RDMA_WQE_RD_FENCE_FLG_SHIFT             1
#define RDMA_SQ_RDMA_WQE_INV_FENCE_FLG_MASK             0x1 /* If set, all pending operations will be completed before start processing this WQE */
#define RDMA_SQ_RDMA_WQE_INV_FENCE_FLG_SHIFT            2
#define RDMA_SQ_RDMA_WQE_SE_FLG_MASK                    0x1 /* If set, signal the responder to generate a solicited event on this WQE */
#define RDMA_SQ_RDMA_WQE_SE_FLG_SHIFT                   3
#define RDMA_SQ_RDMA_WQE_INLINE_FLG_MASK                0x1 /* if set, indicates inline data is following this WQE instead of SGEs. Applicable for RDMA_WR or RDMA_WR_WITH_IMM. Should be 0 for RDMA_RD */
#define RDMA_SQ_RDMA_WQE_INLINE_FLG_SHIFT               4
#define RDMA_SQ_RDMA_WQE_DIF_ON_HOST_FLG_MASK           0x1 /* If set, indicated host memory of this WQE is DIF protected. */
#define RDMA_SQ_RDMA_WQE_DIF_ON_HOST_FLG_SHIFT          5
#define RDMA_SQ_RDMA_WQE_READ_INV_FLG_MASK              0x1 /* If set, indicated read with invalidate WQE. iWARP only */
#define RDMA_SQ_RDMA_WQE_READ_INV_FLG_SHIFT             6
#define RDMA_SQ_RDMA_WQE_RESERVED0_MASK                 0x1
#define RDMA_SQ_RDMA_WQE_RESERVED0_SHIFT                7
	u8 wqe_size /* Size of WQE in 16B chunks including all SGEs or inline data. In case there are SGEs: set to number of SGEs + 1. In case of inline data: set to the whole number of 16B which contain the inline data + 1. */;
	u8 prev_wqe_size /* Previous WQE size in 16B chunks */;
	struct regpair remote_va /* Remote virtual address */;
	__le32 r_key /* Remote key */;
	u8 dif_flags;
#define RDMA_SQ_RDMA_WQE_DIF_BLOCK_SIZE_MASK            0x1 /* if dif_on_host_flg set: DIF block size. 0=512B 1=4096B (use enum rdma_dif_block_size) */
#define RDMA_SQ_RDMA_WQE_DIF_BLOCK_SIZE_SHIFT           0
#define RDMA_SQ_RDMA_WQE_DIF_FIRST_RDMA_IN_IO_FLG_MASK  0x1 /* if dif_on_host_flg set: WQE executes first RDMA on related IO. */
#define RDMA_SQ_RDMA_WQE_DIF_FIRST_RDMA_IN_IO_FLG_SHIFT 1
#define RDMA_SQ_RDMA_WQE_DIF_LAST_RDMA_IN_IO_FLG_MASK   0x1 /* if dif_on_host_flg set: WQE executes last RDMA on related IO. */
#define RDMA_SQ_RDMA_WQE_DIF_LAST_RDMA_IN_IO_FLG_SHIFT  2
#define RDMA_SQ_RDMA_WQE_RESERVED1_MASK                 0x1F
#define RDMA_SQ_RDMA_WQE_RESERVED1_SHIFT                3
	u8 reserved2[3];
};


/*
 * First element (16 bytes) of rdma wqe
 */
struct rdma_sq_rdma_wqe_1st
{
	__le32 imm_data /* The immediate data in case of RDMA_WITH_IMM */;
	__le32 length /* Total data length */;
	__le32 xrc_srq /* Valid only when XRC is set for the QP */;
	u8 req_type /* Type of WQE */;
	u8 flags;
#define RDMA_SQ_RDMA_WQE_1ST_COMP_FLG_MASK         0x1 /* If set, completion will be generated when the WQE is completed */
#define RDMA_SQ_RDMA_WQE_1ST_COMP_FLG_SHIFT        0
#define RDMA_SQ_RDMA_WQE_1ST_RD_FENCE_FLG_MASK     0x1 /* If set, all pending RDMA read or Atomic operations will be completed before start processing this WQE */
#define RDMA_SQ_RDMA_WQE_1ST_RD_FENCE_FLG_SHIFT    1
#define RDMA_SQ_RDMA_WQE_1ST_INV_FENCE_FLG_MASK    0x1 /* If set, all pending operations will be completed before start processing this WQE */
#define RDMA_SQ_RDMA_WQE_1ST_INV_FENCE_FLG_SHIFT   2
#define RDMA_SQ_RDMA_WQE_1ST_SE_FLG_MASK           0x1 /* If set, signal the responder to generate a solicited event on this WQE */
#define RDMA_SQ_RDMA_WQE_1ST_SE_FLG_SHIFT          3
#define RDMA_SQ_RDMA_WQE_1ST_INLINE_FLG_MASK       0x1 /* if set, indicates inline data is following this WQE instead of SGEs. Applicable for RDMA_WR or RDMA_WR_WITH_IMM. Should be 0 for RDMA_RD */
#define RDMA_SQ_RDMA_WQE_1ST_INLINE_FLG_SHIFT      4
#define RDMA_SQ_RDMA_WQE_1ST_DIF_ON_HOST_FLG_MASK  0x1 /* If set, indicated host memory of this WQE is DIF protected. */
#define RDMA_SQ_RDMA_WQE_1ST_DIF_ON_HOST_FLG_SHIFT 5
#define RDMA_SQ_RDMA_WQE_1ST_READ_INV_FLG_MASK     0x1 /* If set, indicated read with invalidate WQE. iWARP only */
#define RDMA_SQ_RDMA_WQE_1ST_READ_INV_FLG_SHIFT    6
#define RDMA_SQ_RDMA_WQE_1ST_RESERVED0_MASK        0x1
#define RDMA_SQ_RDMA_WQE_1ST_RESERVED0_SHIFT       7
	u8 wqe_size /* Size of WQE in 16B chunks including all SGEs or inline data. In case there are SGEs: set to number of SGEs + 1. In case of inline data: set to the whole number of 16B which contain the inline data + 1. */;
	u8 prev_wqe_size /* Previous WQE size in 16B chunks */;
};


/*
 * Second element (16 bytes) of rdma wqe
 */
struct rdma_sq_rdma_wqe_2nd
{
	struct regpair remote_va /* Remote virtual address */;
	__le32 r_key /* Remote key */;
	u8 dif_flags;
#define RDMA_SQ_RDMA_WQE_2ND_DIF_BLOCK_SIZE_MASK         0x1 /* if dif_on_host_flg set: DIF block size. 0=512B 1=4096B (use enum rdma_dif_block_size) */
#define RDMA_SQ_RDMA_WQE_2ND_DIF_BLOCK_SIZE_SHIFT        0
#define RDMA_SQ_RDMA_WQE_2ND_DIF_FIRST_SEGMENT_FLG_MASK  0x1 /* if dif_on_host_flg set: WQE executes first DIF on related MR. */
#define RDMA_SQ_RDMA_WQE_2ND_DIF_FIRST_SEGMENT_FLG_SHIFT 1
#define RDMA_SQ_RDMA_WQE_2ND_DIF_LAST_SEGMENT_FLG_MASK   0x1 /* if dif_on_host_flg set: WQE executes last DIF on related MR. */
#define RDMA_SQ_RDMA_WQE_2ND_DIF_LAST_SEGMENT_FLG_SHIFT  2
#define RDMA_SQ_RDMA_WQE_2ND_RESERVED1_MASK              0x1F
#define RDMA_SQ_RDMA_WQE_2ND_RESERVED1_SHIFT             3
	u8 reserved2[3];
};


/*
 * SQ WQE req type enumeration
 */
enum rdma_sq_req_type
{
	RDMA_SQ_REQ_TYPE_SEND,
	RDMA_SQ_REQ_TYPE_SEND_WITH_IMM,
	RDMA_SQ_REQ_TYPE_SEND_WITH_INVALIDATE,
	RDMA_SQ_REQ_TYPE_RDMA_WR,
	RDMA_SQ_REQ_TYPE_RDMA_WR_WITH_IMM,
	RDMA_SQ_REQ_TYPE_RDMA_RD,
	RDMA_SQ_REQ_TYPE_ATOMIC_CMP_AND_SWAP,
	RDMA_SQ_REQ_TYPE_ATOMIC_ADD,
	RDMA_SQ_REQ_TYPE_LOCAL_INVALIDATE,
	RDMA_SQ_REQ_TYPE_FAST_MR,
	RDMA_SQ_REQ_TYPE_BIND,
	RDMA_SQ_REQ_TYPE_INVALID,
	MAX_RDMA_SQ_REQ_TYPE
};


struct rdma_sq_send_wqe
{
	__le32 inv_key_or_imm_data /* the r_key to invalidate in case of SEND_WITH_INVALIDATE, or the immediate data in case of SEND_WITH_IMM */;
	__le32 length /* Total data length */;
	__le32 xrc_srq /* Valid only when XRC is set for the QP */;
	u8 req_type /* Type of WQE */;
	u8 flags;
#define RDMA_SQ_SEND_WQE_COMP_FLG_MASK         0x1 /* If set, completion will be generated when the WQE is completed */
#define RDMA_SQ_SEND_WQE_COMP_FLG_SHIFT        0
#define RDMA_SQ_SEND_WQE_RD_FENCE_FLG_MASK     0x1 /* If set, all pending RDMA read or Atomic operations will be completed before start processing this WQE */
#define RDMA_SQ_SEND_WQE_RD_FENCE_FLG_SHIFT    1
#define RDMA_SQ_SEND_WQE_INV_FENCE_FLG_MASK    0x1 /* If set, all pending operations will be completed before start processing this WQE */
#define RDMA_SQ_SEND_WQE_INV_FENCE_FLG_SHIFT   2
#define RDMA_SQ_SEND_WQE_SE_FLG_MASK           0x1 /* If set, signal the responder to generate a solicited event on this WQE */
#define RDMA_SQ_SEND_WQE_SE_FLG_SHIFT          3
#define RDMA_SQ_SEND_WQE_INLINE_FLG_MASK       0x1 /* if set, indicates inline data is following this WQE instead of SGEs */
#define RDMA_SQ_SEND_WQE_INLINE_FLG_SHIFT      4
#define RDMA_SQ_SEND_WQE_DIF_ON_HOST_FLG_MASK  0x1 /* Should be 0 for send wqe */
#define RDMA_SQ_SEND_WQE_DIF_ON_HOST_FLG_SHIFT 5
#define RDMA_SQ_SEND_WQE_RESERVED0_MASK        0x3
#define RDMA_SQ_SEND_WQE_RESERVED0_SHIFT       6
	u8 wqe_size /* Size of WQE in 16B chunks including all SGEs or inline data. In case there are SGEs: set to number of SGEs + 1. In case of inline data: set to the whole number of 16B which contain the inline data + 1. */;
	u8 prev_wqe_size /* Previous WQE size in 16B chunks */;
	__le32 reserved1[4];
};


struct rdma_sq_send_wqe_1st
{
	__le32 inv_key_or_imm_data /* the r_key to invalidate in case of SEND_WITH_INVALIDATE, or the immediate data in case of SEND_WITH_IMM */;
	__le32 length /* Total data length */;
	__le32 xrc_srq /* Valid only when XRC is set for the QP */;
	u8 req_type /* Type of WQE */;
	u8 flags;
#define RDMA_SQ_SEND_WQE_1ST_COMP_FLG_MASK       0x1 /* If set, completion will be generated when the WQE is completed */
#define RDMA_SQ_SEND_WQE_1ST_COMP_FLG_SHIFT      0
#define RDMA_SQ_SEND_WQE_1ST_RD_FENCE_FLG_MASK   0x1 /* If set, all pending RDMA read or Atomic operations will be completed before start processing this WQE */
#define RDMA_SQ_SEND_WQE_1ST_RD_FENCE_FLG_SHIFT  1
#define RDMA_SQ_SEND_WQE_1ST_INV_FENCE_FLG_MASK  0x1 /* If set, all pending operations will be completed before start processing this WQE */
#define RDMA_SQ_SEND_WQE_1ST_INV_FENCE_FLG_SHIFT 2
#define RDMA_SQ_SEND_WQE_1ST_SE_FLG_MASK         0x1 /* If set, signal the responder to generate a solicited event on this WQE */
#define RDMA_SQ_SEND_WQE_1ST_SE_FLG_SHIFT        3
#define RDMA_SQ_SEND_WQE_1ST_INLINE_FLG_MASK     0x1 /* if set, indicates inline data is following this WQE instead of SGEs */
#define RDMA_SQ_SEND_WQE_1ST_INLINE_FLG_SHIFT    4
#define RDMA_SQ_SEND_WQE_1ST_RESERVED0_MASK      0x7
#define RDMA_SQ_SEND_WQE_1ST_RESERVED0_SHIFT     5
	u8 wqe_size /* Size of WQE in 16B chunks including all SGEs or inline data. In case there are SGEs: set to number of SGEs + 1. In case of inline data: set to the whole number of 16B which contain the inline data + 1. */;
	u8 prev_wqe_size /* Previous WQE size in 16B chunks */;
};


struct rdma_sq_send_wqe_2st
{
	__le32 reserved1[4];
};


struct rdma_sq_sge
{
	__le32 length /* Total length of the send. If DIF on host is enabled, SGE length includes the DIF guards. */;
	struct regpair addr;
	__le32 l_key;
};


struct rdma_srq_wqe_header
{
	struct regpair wr_id;
	u8 num_sges /* number of SGEs in WQE */;
	u8 reserved2[7];
};

struct rdma_srq_sge
{
	struct regpair addr;
	__le32 length;
	__le32 l_key;
};

/*
 * rdma srq sge
 */
union rdma_srq_elm
{
	struct rdma_srq_wqe_header header;
	struct rdma_srq_sge sge;
};


/*
 * Rdma doorbell data for flags update
 */
struct rdma_pwm_flags_data
{
	__le16 icid /* internal CID */;
	u8 agg_flags /* aggregative flags */;
	u8 reserved;
};


/*
 * Rdma doorbell data for SQ and RQ
 */
struct rdma_pwm_val16_data
{
	__le16 icid /* internal CID */;
	__le16 value /* aggregated value to update */;
};


union rdma_pwm_val16_data_union
{
	struct rdma_pwm_val16_data as_struct /* Parameters field */;
	__le32 as_dword;
};


/*
 * Rdma doorbell data for CQ
 */
struct rdma_pwm_val32_data
{
	__le16 icid /* internal CID */;
	u8 agg_flags /* bit for every DQ counter flags in CM context that DQ can increment */;
	u8 params;
#define RDMA_PWM_VAL32_DATA_AGG_CMD_MASK             0x3 /* aggregative command to CM (use enum db_agg_cmd_sel) */
#define RDMA_PWM_VAL32_DATA_AGG_CMD_SHIFT            0
#define RDMA_PWM_VAL32_DATA_BYPASS_EN_MASK           0x1 /* enable QM bypass */
#define RDMA_PWM_VAL32_DATA_BYPASS_EN_SHIFT          2
#define RDMA_PWM_VAL32_DATA_CONN_TYPE_IS_IWARP_MASK  0x1 /* Connection type is iWARP */
#define RDMA_PWM_VAL32_DATA_CONN_TYPE_IS_IWARP_SHIFT 3
#define RDMA_PWM_VAL32_DATA_SET_16B_VAL_MASK         0x1 /* Flag indicating 16b variable should be updated. Should be used when conn_type_is_iwarp is used */
#define RDMA_PWM_VAL32_DATA_SET_16B_VAL_SHIFT        4
#define RDMA_PWM_VAL32_DATA_RESERVED_MASK            0x7
#define RDMA_PWM_VAL32_DATA_RESERVED_SHIFT           5
	__le32 value /* aggregated value to update */;
};


union rdma_pwm_val32_data_union
{
	struct rdma_pwm_val32_data as_struct /* Parameters field */;
	struct regpair as_repair;
};

#endif /* __RDMA_COMMON__ */