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Edit File : siw-abi.h \| Size : 3.32 KB
/* SPDX-License-Identifier: GPL-2.0 or BSD-3-Clause / / Authors: Bernard Metzler <bmt@zurich.ibm.com> / / Copyright (c) 2008-2019, IBM Corporation / #ifndef _SIW_USER_H #define _SIW_USER_H #include <linux/types.h> #define SIW_NODE_DESC_COMMON "Software iWARP stack" #define SIW_ABI_VERSION 1 #define SIW_MAX_SGE 6 #define SIW_UOBJ_MAX_KEY 0x08FFFF #define SIW_INVAL_UOBJ_KEY (SIW_UOBJ_MAX_KEY + 1) struct siw_uresp_create_cq { __u32 cq_id; __u32 num_cqe; __aligned_u64 cq_key; }; struct siw_uresp_create_qp { __u32 qp_id; __u32 num_sqe; __u32 num_rqe; __u32 pad; __aligned_u64 sq_key; __aligned_u64 rq_key; }; struct siw_ureq_reg_mr { __u8 stag_key; __u8 reserved[3]; __u32 pad; }; struct siw_uresp_reg_mr { __u32 stag; __u32 pad; }; struct siw_uresp_create_srq { __u32 num_rqe; __u32 pad; __aligned_u64 srq_key; }; struct siw_uresp_alloc_ctx { __u32 dev_id; __u32 pad; }; enum siw_opcode { SIW_OP_WRITE, SIW_OP_READ, SIW_OP_READ_LOCAL_INV, SIW_OP_SEND, SIW_OP_SEND_WITH_IMM, SIW_OP_SEND_REMOTE_INV, / Unsupported / SIW_OP_FETCH_AND_ADD, SIW_OP_COMP_AND_SWAP, SIW_OP_RECEIVE, / provider internal SQE / SIW_OP_READ_RESPONSE, / * below opcodes valid for * in-kernel clients only / SIW_OP_INVAL_STAG, SIW_OP_REG_MR, SIW_NUM_OPCODES }; / Keep it same as ibv_sge to allow for memcpy / struct siw_sge { __aligned_u64 laddr; __u32 length; __u32 lkey; }; / * Inline data are kept within the work request itself occupying * the space of sge[1] .. sge[n]. Therefore, __inline__ data cannot be * supported if SIW_MAX_SGE is below 2 elements. / #define SIW_MAX_INLINE (sizeof(struct siw_sge) (SIW_MAX_SGE - 1)) #if SIW_MAX_SGE < 2 #error "SIW_MAX_SGE must be at least 2" #endif enum siw_wqe_flags { SIW_WQE_VALID = 1, SIW_WQE_INLINE = (1 << 1), SIW_WQE_SIGNALLED = (1 << 2), SIW_WQE_SOLICITED = (1 << 3), SIW_WQE_READ_FENCE = (1 << 4), SIW_WQE_REM_INVAL = (1 << 5), SIW_WQE_COMPLETED = (1 << 6) }; /* Send Queue Element / struct siw_sqe { __aligned_u64 id; __u16 flags; __u8 num_sge; / Contains enum siw_opcode values / __u8 opcode; __u32 rkey; union { __aligned_u64 raddr; __aligned_u64 base_mr; }; union { struct siw_sge sge[SIW_MAX_SGE]; __aligned_u64 access; }; }; / Receive Queue Element / struct siw_rqe { __aligned_u64 id; __u16 flags; __u8 num_sge; / * only used by kernel driver, * ignored if set by user / __u8 opcode; __u32 unused; struct siw_sge sge[SIW_MAX_SGE]; }; enum siw_notify_flags { SIW_NOTIFY_NOT = (0), SIW_NOTIFY_SOLICITED = (1 << 0), SIW_NOTIFY_NEXT_COMPLETION = (1 << 1), SIW_NOTIFY_MISSED_EVENTS = (1 << 2), SIW_NOTIFY_ALL = SIW_NOTIFY_SOLICITED \| SIW_NOTIFY_NEXT_COMPLETION \| SIW_NOTIFY_MISSED_EVENTS }; enum siw_wc_status { SIW_WC_SUCCESS, SIW_WC_LOC_LEN_ERR, SIW_WC_LOC_PROT_ERR, SIW_WC_LOC_QP_OP_ERR, SIW_WC_WR_FLUSH_ERR, SIW_WC_BAD_RESP_ERR, SIW_WC_LOC_ACCESS_ERR, SIW_WC_REM_ACCESS_ERR, SIW_WC_REM_INV_REQ_ERR, SIW_WC_GENERAL_ERR, SIW_NUM_WC_STATUS }; struct siw_cqe { __aligned_u64 id; __u8 flags; __u8 opcode; __u16 status; __u32 bytes; union { __aligned_u64 imm_data; __u32 inval_stag; }; / QP number or QP pointer / union { struct ib_qp base_qp; __aligned_u64 qp_id; }; }; /* * Shared structure between user and kernel * to control CQ arming. */ struct siw_cq_ctrl { __u32 flags; __u32 pad; }; #endif Back

Edit File : siw-abi.h | Size : 3.32 KB

/* SPDX-License-Identifier: GPL-2.0 or BSD-3-Clause */

#ifndef _SIW_USER_H
#define _SIW_USER_H

#include <linux/types.h>

#define SIW_NODE_DESC_COMMON "Software iWARP stack"
#define SIW_ABI_VERSION 1
#define SIW_MAX_SGE 6
#define SIW_UOBJ_MAX_KEY 0x08FFFF
#define SIW_INVAL_UOBJ_KEY (SIW_UOBJ_MAX_KEY + 1)

struct siw_uresp_create_cq {
	__u32 cq_id;
	__u32 num_cqe;
	__aligned_u64 cq_key;
};

struct siw_uresp_create_qp {
	__u32 qp_id;
	__u32 num_sqe;
	__u32 num_rqe;
	__u32 pad;
	__aligned_u64 sq_key;
	__aligned_u64 rq_key;
};

struct siw_ureq_reg_mr {
	__u8 stag_key;
	__u8 reserved[3];
	__u32 pad;
};

struct siw_uresp_reg_mr {
	__u32 stag;
	__u32 pad;
};

struct siw_uresp_create_srq {
	__u32 num_rqe;
	__u32 pad;
	__aligned_u64 srq_key;
};

struct siw_uresp_alloc_ctx {
	__u32 dev_id;
	__u32 pad;
};

enum siw_opcode {
	SIW_OP_WRITE,
	SIW_OP_READ,
	SIW_OP_READ_LOCAL_INV,
	SIW_OP_SEND,
	SIW_OP_SEND_WITH_IMM,
	SIW_OP_SEND_REMOTE_INV,

/* Unsupported */
	SIW_OP_FETCH_AND_ADD,
	SIW_OP_COMP_AND_SWAP,

SIW_OP_RECEIVE,
	/* provider internal SQE */
	SIW_OP_READ_RESPONSE,
	/*
	 * below opcodes valid for
	 * in-kernel clients only
	 */
	SIW_OP_INVAL_STAG,
	SIW_OP_REG_MR,
	SIW_NUM_OPCODES
};

/* Keep it same as ibv_sge to allow for memcpy */
struct siw_sge {
	__aligned_u64 laddr;
	__u32 length;
	__u32 lkey;
};

/*
 * Inline data are kept within the work request itself occupying
 * the space of sge[1] .. sge[n]. Therefore, __inline__ data cannot be
 * supported if SIW_MAX_SGE is below 2 elements.
 */
#define SIW_MAX_INLINE (sizeof(struct siw_sge) * (SIW_MAX_SGE - 1))

#if SIW_MAX_SGE < 2
#error "SIW_MAX_SGE must be at least 2"
#endif

enum siw_wqe_flags {
	SIW_WQE_VALID = 1,
	SIW_WQE_INLINE = (1 << 1),
	SIW_WQE_SIGNALLED = (1 << 2),
	SIW_WQE_SOLICITED = (1 << 3),
	SIW_WQE_READ_FENCE = (1 << 4),
	SIW_WQE_REM_INVAL = (1 << 5),
	SIW_WQE_COMPLETED = (1 << 6)
};

/* Send Queue Element */
struct siw_sqe {
	__aligned_u64 id;
	__u16 flags;
	__u8 num_sge;
	/* Contains enum siw_opcode values */
	__u8 opcode;
	__u32 rkey;
	union {
		__aligned_u64 raddr;
		__aligned_u64 base_mr;
	};
	union {
		struct siw_sge sge[SIW_MAX_SGE];
		__aligned_u64 access;
	};
};

/* Receive Queue Element */
struct siw_rqe {
	__aligned_u64 id;
	__u16 flags;
	__u8 num_sge;
	/*
	 * only used by kernel driver,
	 * ignored if set by user
	 */
	__u8 opcode;
	__u32 unused;
	struct siw_sge sge[SIW_MAX_SGE];
};

enum siw_notify_flags {
	SIW_NOTIFY_NOT = (0),
	SIW_NOTIFY_SOLICITED = (1 << 0),
	SIW_NOTIFY_NEXT_COMPLETION = (1 << 1),
	SIW_NOTIFY_MISSED_EVENTS = (1 << 2),
	SIW_NOTIFY_ALL = SIW_NOTIFY_SOLICITED | SIW_NOTIFY_NEXT_COMPLETION |
			 SIW_NOTIFY_MISSED_EVENTS
};

enum siw_wc_status {
	SIW_WC_SUCCESS,
	SIW_WC_LOC_LEN_ERR,
	SIW_WC_LOC_PROT_ERR,
	SIW_WC_LOC_QP_OP_ERR,
	SIW_WC_WR_FLUSH_ERR,
	SIW_WC_BAD_RESP_ERR,
	SIW_WC_LOC_ACCESS_ERR,
	SIW_WC_REM_ACCESS_ERR,
	SIW_WC_REM_INV_REQ_ERR,
	SIW_WC_GENERAL_ERR,
	SIW_NUM_WC_STATUS
};

struct siw_cqe {
	__aligned_u64 id;
	__u8 flags;
	__u8 opcode;
	__u16 status;
	__u32 bytes;
	union {
		__aligned_u64 imm_data;
		__u32 inval_stag;
	};
	/* QP number or QP pointer */
	union {
		struct ib_qp *base_qp;
		__aligned_u64 qp_id;
	};
};

/*
 * Shared structure between user and kernel
 * to control CQ arming.
 */
struct siw_cq_ctrl {
	__u32 flags;
	__u32 pad;
};
#endif

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