drivers/infiniband/hw/mlx5/user.h - linux - Git at Google

 /*
  * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
  *
  * This software is available to you under a choice of one of two
  * licenses.  You may choose to be licensed 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, or the
  * OpenIB.org BSD license below:
  *
  *     Redistribution and use in source and binary forms, with or
  *     without modification, are permitted provided that the following
  *     conditions are met:
  *
  *      - Redistributions of source code must retain the above
  *        copyright notice, this list of conditions and the following
  *        disclaimer.
  *
  *      - 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.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
  */

 #ifndef MLX5_IB_USER_H
 #define MLX5_IB_USER_H

 #include <linux/types.h>

 #include "mlx5_ib.h"

 enum {
 	MLX5_QP_FLAG_SIGNATURE		= 1 << 0,
 	MLX5_QP_FLAG_SCATTER_CQE	= 1 << 1,
 };

 enum {
 	MLX5_SRQ_FLAG_SIGNATURE		= 1 << 0,
 };

 enum {
 	MLX5_WQ_FLAG_SIGNATURE		= 1 << 0,
 };


 /* Increment this value if any changes that break userspace ABI
  * compatibility are made.
  */
 #define MLX5_IB_UVERBS_ABI_VERSION	1

 /* Make sure that all structs defined in this file remain laid out so
  * that they pack the same way on 32-bit and 64-bit architectures (to
  * avoid incompatibility between 32-bit userspace and 64-bit kernels).
  * In particular do not use pointer types -- pass pointers in __u64
  * instead.
  */

 struct mlx5_ib_alloc_ucontext_req {
 	__u32	total_num_uuars;
 	__u32	num_low_latency_uuars;
 };

 struct mlx5_ib_alloc_ucontext_req_v2 {
 	__u32	total_num_uuars;
 	__u32	num_low_latency_uuars;
 	__u32	flags;
 	__u32	comp_mask;
 	__u8	max_cqe_version;
 	__u8	reserved0;
 	__u16	reserved1;
 	__u32	reserved2;
 };

 enum mlx5_ib_alloc_ucontext_resp_mask {
 	MLX5_IB_ALLOC_UCONTEXT_RESP_MASK_CORE_CLOCK_OFFSET = 1UL << 0,
 };

 enum mlx5_user_cmds_supp_uhw {
 	MLX5_USER_CMDS_SUPP_UHW_QUERY_DEVICE = 1 << 0,
 };

 struct mlx5_ib_alloc_ucontext_resp {
 	__u32	qp_tab_size;
 	__u32	bf_reg_size;
 	__u32	tot_uuars;
 	__u32	cache_line_size;
 	__u16	max_sq_desc_sz;
 	__u16	max_rq_desc_sz;
 	__u32	max_send_wqebb;
 	__u32	max_recv_wr;
 	__u32	max_srq_recv_wr;
 	__u16	num_ports;
 	__u16	reserved1;
 	__u32	comp_mask;
 	__u32	response_length;
 	__u8	cqe_version;
 	__u8	cmds_supp_uhw;
 	__u16	reserved2;
 	__u64	hca_core_clock_offset;
 };

 struct mlx5_ib_alloc_pd_resp {
 	__u32	pdn;
 };

 struct mlx5_ib_tso_caps {
 	__u32 max_tso; /* Maximum tso payload size in bytes */

 	/* Corresponding bit will be set if qp type from
 	 * 'enum ib_qp_type' is supported, e.g.
 	 * supported_qpts |= 1 << IB_QPT_UD
 	 */
 	__u32 supported_qpts;
 };

 struct mlx5_ib_query_device_resp {
 	__u32	comp_mask;
 	__u32	response_length;
 	struct	mlx5_ib_tso_caps tso_caps;
 };

 struct mlx5_ib_create_cq {
 	__u64	buf_addr;
 	__u64	db_addr;
 	__u32	cqe_size;
 	__u32	reserved; /* explicit padding (optional on i386) */
 };

 struct mlx5_ib_create_cq_resp {
 	__u32	cqn;
 	__u32	reserved;
 };

 struct mlx5_ib_resize_cq {
 	__u64	buf_addr;
 	__u16	cqe_size;
 	__u16	reserved0;
 	__u32	reserved1;
 };

 struct mlx5_ib_create_srq {
 	__u64	buf_addr;
 	__u64	db_addr;
 	__u32	flags;
 	__u32	reserved0; /* explicit padding (optional on i386) */
 	__u32	uidx;
 	__u32	reserved1;
 };

 struct mlx5_ib_create_srq_resp {
 	__u32	srqn;
 	__u32	reserved;
 };

 struct mlx5_ib_create_qp {
 	__u64	buf_addr;
 	__u64	db_addr;
 	__u32	sq_wqe_count;
 	__u32	rq_wqe_count;
 	__u32	rq_wqe_shift;
 	__u32	flags;
 	__u32	uidx;
 	__u32	reserved0;
 	__u64	sq_buf_addr;
 };

 /* RX Hash function flags */
 enum mlx5_rx_hash_function_flags {
 	MLX5_RX_HASH_FUNC_TOEPLITZ	= 1 << 0,
 };

 /*
  * RX Hash flags, these flags allows to set which incoming packet's field should
  * participates in RX Hash. Each flag represent certain packet's field,
  * when the flag is set the field that is represented by the flag will
  * participate in RX Hash calculation.
  * Note: *IPV4 and *IPV6 flags can't be enabled together on the same QP
  * and *TCP and *UDP flags can't be enabled together on the same QP.
 */
 enum mlx5_rx_hash_fields {
 	MLX5_RX_HASH_SRC_IPV4	= 1 << 0,
 	MLX5_RX_HASH_DST_IPV4	= 1 << 1,
 	MLX5_RX_HASH_SRC_IPV6	= 1 << 2,
 	MLX5_RX_HASH_DST_IPV6	= 1 << 3,
 	MLX5_RX_HASH_SRC_PORT_TCP	= 1 << 4,
 	MLX5_RX_HASH_DST_PORT_TCP	= 1 << 5,
 	MLX5_RX_HASH_SRC_PORT_UDP	= 1 << 6,
 	MLX5_RX_HASH_DST_PORT_UDP	= 1 << 7
 };

 struct mlx5_ib_create_qp_rss {
 	__u64 rx_hash_fields_mask; /* enum mlx5_rx_hash_fields */
 	__u8 rx_hash_function; /* enum mlx5_rx_hash_function_flags */
 	__u8 rx_key_len; /* valid only for Toeplitz */
 	__u8 reserved[6];
 	__u8 rx_hash_key[128]; /* valid only for Toeplitz */
 	__u32   comp_mask;
 	__u32   reserved1;
 };

 struct mlx5_ib_create_qp_resp {
 	__u32	uuar_index;
 };

 struct mlx5_ib_alloc_mw {
 	__u32	comp_mask;
 	__u8	num_klms;
 	__u8	reserved1;
 	__u16	reserved2;
 };

 struct mlx5_ib_create_wq {
 	__u64   buf_addr;
 	__u64   db_addr;
 	__u32   rq_wqe_count;
 	__u32   rq_wqe_shift;
 	__u32   user_index;
 	__u32   flags;
 	__u32   comp_mask;
 	__u32   reserved;
 };

 struct mlx5_ib_create_wq_resp {
 	__u32	response_length;
 	__u32	reserved;
 };

 struct mlx5_ib_create_rwq_ind_tbl_resp {
 	__u32	response_length;
 	__u32	reserved;
 };

 struct mlx5_ib_modify_wq {
 	__u32	comp_mask;
 	__u32	reserved;
 };

 static inline int get_qp_user_index(struct mlx5_ib_ucontext *ucontext,
 				    struct mlx5_ib_create_qp *ucmd,
 				    int inlen,
 				    u32 *user_index)
 {
 	u8 cqe_version = ucontext->cqe_version;

 	if (field_avail(struct mlx5_ib_create_qp, uidx, inlen) &&
 	    !cqe_version && (ucmd->uidx == MLX5_IB_DEFAULT_UIDX))
 		return 0;

 	if (!!(field_avail(struct mlx5_ib_create_qp, uidx, inlen) !=
 	       !!cqe_version))
 		return -EINVAL;

 	return verify_assign_uidx(cqe_version, ucmd->uidx, user_index);
 }

 static inline int get_srq_user_index(struct mlx5_ib_ucontext *ucontext,
 				     struct mlx5_ib_create_srq *ucmd,
 				     int inlen,
 				     u32 *user_index)
 {
 	u8 cqe_version = ucontext->cqe_version;

 	if (field_avail(struct mlx5_ib_create_srq, uidx, inlen) &&
 	    !cqe_version && (ucmd->uidx == MLX5_IB_DEFAULT_UIDX))
 		return 0;

 	if (!!(field_avail(struct mlx5_ib_create_srq, uidx, inlen) !=
 	       !!cqe_version))
 		return -EINVAL;

 	return verify_assign_uidx(cqe_version, ucmd->uidx, user_index);
 }
 #endif /* MLX5_IB_USER_H */
	/*
	* Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
	*
	* This software is available to you under a choice of one of two
	* licenses. You may choose to be licensed 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, or the
	* OpenIB.org BSD license below:
	*
	* Redistribution and use in source and binary forms, with or
	* without modification, are permitted provided that the following
	* conditions are met:
	*
	* - Redistributions of source code must retain the above
	* copyright notice, this list of conditions and the following
	* disclaimer.
	*
	* - 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.
	*
	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
	* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
	* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
	* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
	* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
	* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
	* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
	* SOFTWARE.
	*/

	#ifndef MLX5_IB_USER_H
	#define MLX5_IB_USER_H

	#include <linux/types.h>

	#include "mlx5_ib.h"

	enum {
	MLX5_QP_FLAG_SIGNATURE = 1 << 0,
	MLX5_QP_FLAG_SCATTER_CQE = 1 << 1,
	};

	enum {
	MLX5_SRQ_FLAG_SIGNATURE = 1 << 0,
	};

	enum {
	MLX5_WQ_FLAG_SIGNATURE = 1 << 0,
	};


	/* Increment this value if any changes that break userspace ABI
	* compatibility are made.
	*/
	#define MLX5_IB_UVERBS_ABI_VERSION 1

	/* Make sure that all structs defined in this file remain laid out so
	* that they pack the same way on 32-bit and 64-bit architectures (to
	* avoid incompatibility between 32-bit userspace and 64-bit kernels).
	* In particular do not use pointer types -- pass pointers in __u64
	* instead.
	*/

	struct mlx5_ib_alloc_ucontext_req {
	__u32 total_num_uuars;
	__u32 num_low_latency_uuars;
	};

	struct mlx5_ib_alloc_ucontext_req_v2 {
	__u32 total_num_uuars;
	__u32 num_low_latency_uuars;
	__u32 flags;
	__u32 comp_mask;
	__u8 max_cqe_version;
	__u8 reserved0;
	__u16 reserved1;
	__u32 reserved2;
	};

	enum mlx5_ib_alloc_ucontext_resp_mask {
	MLX5_IB_ALLOC_UCONTEXT_RESP_MASK_CORE_CLOCK_OFFSET = 1UL << 0,
	};

	enum mlx5_user_cmds_supp_uhw {
	MLX5_USER_CMDS_SUPP_UHW_QUERY_DEVICE = 1 << 0,
	};

	struct mlx5_ib_alloc_ucontext_resp {
	__u32 qp_tab_size;
	__u32 bf_reg_size;
	__u32 tot_uuars;
	__u32 cache_line_size;
	__u16 max_sq_desc_sz;
	__u16 max_rq_desc_sz;
	__u32 max_send_wqebb;
	__u32 max_recv_wr;
	__u32 max_srq_recv_wr;
	__u16 num_ports;
	__u16 reserved1;
	__u32 comp_mask;
	__u32 response_length;
	__u8 cqe_version;
	__u8 cmds_supp_uhw;
	__u16 reserved2;
	__u64 hca_core_clock_offset;
	};

	struct mlx5_ib_alloc_pd_resp {
	__u32 pdn;
	};

	struct mlx5_ib_tso_caps {
	__u32 max_tso; /* Maximum tso payload size in bytes */

	/* Corresponding bit will be set if qp type from
	* 'enum ib_qp_type' is supported, e.g.
	* supported_qpts \|= 1 << IB_QPT_UD
	*/
	__u32 supported_qpts;
	};

	struct mlx5_ib_query_device_resp {
	__u32 comp_mask;
	__u32 response_length;
	struct mlx5_ib_tso_caps tso_caps;
	};

	struct mlx5_ib_create_cq {
	__u64 buf_addr;
	__u64 db_addr;
	__u32 cqe_size;
	__u32 reserved; /* explicit padding (optional on i386) */
	};

	struct mlx5_ib_create_cq_resp {
	__u32 cqn;
	__u32 reserved;
	};

	struct mlx5_ib_resize_cq {
	__u64 buf_addr;
	__u16 cqe_size;
	__u16 reserved0;
	__u32 reserved1;
	};

	struct mlx5_ib_create_srq {
	__u64 buf_addr;
	__u64 db_addr;
	__u32 flags;
	__u32 reserved0; /* explicit padding (optional on i386) */
	__u32 uidx;
	__u32 reserved1;
	};

	struct mlx5_ib_create_srq_resp {
	__u32 srqn;
	__u32 reserved;
	};

	struct mlx5_ib_create_qp {
	__u64 buf_addr;
	__u64 db_addr;
	__u32 sq_wqe_count;
	__u32 rq_wqe_count;
	__u32 rq_wqe_shift;
	__u32 flags;
	__u32 uidx;
	__u32 reserved0;
	__u64 sq_buf_addr;
	};

	/* RX Hash function flags */
	enum mlx5_rx_hash_function_flags {
	MLX5_RX_HASH_FUNC_TOEPLITZ = 1 << 0,
	};

	/*
	* RX Hash flags, these flags allows to set which incoming packet's field should
	* participates in RX Hash. Each flag represent certain packet's field,
	* when the flag is set the field that is represented by the flag will
	* participate in RX Hash calculation.
	* Note: IPV4 and IPV6 flags can't be enabled together on the same QP
	* and TCP and UDP flags can't be enabled together on the same QP.
	*/
	enum mlx5_rx_hash_fields {
	MLX5_RX_HASH_SRC_IPV4 = 1 << 0,
	MLX5_RX_HASH_DST_IPV4 = 1 << 1,
	MLX5_RX_HASH_SRC_IPV6 = 1 << 2,
	MLX5_RX_HASH_DST_IPV6 = 1 << 3,
	MLX5_RX_HASH_SRC_PORT_TCP = 1 << 4,
	MLX5_RX_HASH_DST_PORT_TCP = 1 << 5,
	MLX5_RX_HASH_SRC_PORT_UDP = 1 << 6,
	MLX5_RX_HASH_DST_PORT_UDP = 1 << 7
	};

	struct mlx5_ib_create_qp_rss {
	__u64 rx_hash_fields_mask; /* enum mlx5_rx_hash_fields */
	__u8 rx_hash_function; /* enum mlx5_rx_hash_function_flags */
	__u8 rx_key_len; /* valid only for Toeplitz */
	__u8 reserved[6];
	__u8 rx_hash_key[128]; /* valid only for Toeplitz */
	__u32 comp_mask;
	__u32 reserved1;
	};

	struct mlx5_ib_create_qp_resp {
	__u32 uuar_index;
	};

	struct mlx5_ib_alloc_mw {
	__u32 comp_mask;
	__u8 num_klms;
	__u8 reserved1;
	__u16 reserved2;
	};

	struct mlx5_ib_create_wq {
	__u64 buf_addr;
	__u64 db_addr;
	__u32 rq_wqe_count;
	__u32 rq_wqe_shift;
	__u32 user_index;
	__u32 flags;
	__u32 comp_mask;
	__u32 reserved;
	};

	struct mlx5_ib_create_wq_resp {
	__u32 response_length;
	__u32 reserved;
	};

	struct mlx5_ib_create_rwq_ind_tbl_resp {
	__u32 response_length;
	__u32 reserved;
	};

	struct mlx5_ib_modify_wq {
	__u32 comp_mask;
	__u32 reserved;
	};

	static inline int get_qp_user_index(struct mlx5_ib_ucontext *ucontext,
	struct mlx5_ib_create_qp *ucmd,
	int inlen,
	u32 *user_index)
	{
	u8 cqe_version = ucontext->cqe_version;

	if (field_avail(struct mlx5_ib_create_qp, uidx, inlen) &&
	!cqe_version && (ucmd->uidx == MLX5_IB_DEFAULT_UIDX))
	return 0;

	if (!!(field_avail(struct mlx5_ib_create_qp, uidx, inlen) !=
	!!cqe_version))
	return -EINVAL;

	return verify_assign_uidx(cqe_version, ucmd->uidx, user_index);
	}

	static inline int get_srq_user_index(struct mlx5_ib_ucontext *ucontext,
	struct mlx5_ib_create_srq *ucmd,
	int inlen,
	u32 *user_index)
	{
	u8 cqe_version = ucontext->cqe_version;

	if (field_avail(struct mlx5_ib_create_srq, uidx, inlen) &&
	!cqe_version && (ucmd->uidx == MLX5_IB_DEFAULT_UIDX))
	return 0;

	if (!!(field_avail(struct mlx5_ib_create_srq, uidx, inlen) !=
	!!cqe_version))
	return -EINVAL;

	return verify_assign_uidx(cqe_version, ucmd->uidx, user_index);
	}
	#endif /* MLX5_IB_USER_H */