include/linux/mlx4/qp.h - kernel/msm - Gitiles

 /*
  * Copyright (c) 2007 Cisco Systems, Inc.  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 MLX4_QP_H
 #define MLX4_QP_H

 #include <linux/types.h>

 #include <linux/mlx4/device.h>

 #define MLX4_INVALID_LKEY	0x100

 enum mlx4_qp_optpar {
 	MLX4_QP_OPTPAR_ALT_ADDR_PATH		= 1 << 0,
 	MLX4_QP_OPTPAR_RRE			= 1 << 1,
 	MLX4_QP_OPTPAR_RAE			= 1 << 2,
 	MLX4_QP_OPTPAR_RWE			= 1 << 3,
 	MLX4_QP_OPTPAR_PKEY_INDEX		= 1 << 4,
 	MLX4_QP_OPTPAR_Q_KEY			= 1 << 5,
 	MLX4_QP_OPTPAR_RNR_TIMEOUT		= 1 << 6,
 	MLX4_QP_OPTPAR_PRIMARY_ADDR_PATH	= 1 << 7,
 	MLX4_QP_OPTPAR_SRA_MAX			= 1 << 8,
 	MLX4_QP_OPTPAR_RRA_MAX			= 1 << 9,
 	MLX4_QP_OPTPAR_PM_STATE			= 1 << 10,
 	MLX4_QP_OPTPAR_RETRY_COUNT		= 1 << 12,
 	MLX4_QP_OPTPAR_RNR_RETRY		= 1 << 13,
 	MLX4_QP_OPTPAR_ACK_TIMEOUT		= 1 << 14,
 	MLX4_QP_OPTPAR_SCHED_QUEUE		= 1 << 16
 };

 enum mlx4_qp_state {
 	MLX4_QP_STATE_RST			= 0,
 	MLX4_QP_STATE_INIT			= 1,
 	MLX4_QP_STATE_RTR			= 2,
 	MLX4_QP_STATE_RTS			= 3,
 	MLX4_QP_STATE_SQER			= 4,
 	MLX4_QP_STATE_SQD			= 5,
 	MLX4_QP_STATE_ERR			= 6,
 	MLX4_QP_STATE_SQ_DRAINING		= 7,
 	MLX4_QP_NUM_STATE
 };

 enum {
 	MLX4_QP_ST_RC				= 0x0,
 	MLX4_QP_ST_UC				= 0x1,
 	MLX4_QP_ST_RD				= 0x2,
 	MLX4_QP_ST_UD				= 0x3,
 	MLX4_QP_ST_MLX				= 0x7
 };

 enum {
 	MLX4_QP_PM_MIGRATED			= 0x3,
 	MLX4_QP_PM_ARMED			= 0x0,
 	MLX4_QP_PM_REARM			= 0x1
 };

 enum {
 	/* params1 */
 	MLX4_QP_BIT_SRE				= 1 << 15,
 	MLX4_QP_BIT_SWE				= 1 << 14,
 	MLX4_QP_BIT_SAE				= 1 << 13,
 	/* params2 */
 	MLX4_QP_BIT_RRE				= 1 << 15,
 	MLX4_QP_BIT_RWE				= 1 << 14,
 	MLX4_QP_BIT_RAE				= 1 << 13,
 	MLX4_QP_BIT_RIC				= 1 <<	4,
 };

 struct mlx4_qp_path {
 	u8			fl;
 	u8			reserved1[2];
 	u8			pkey_index;
 	u8			reserved2;
 	u8			grh_mylmc;
 	__be16			rlid;
 	u8			ackto;
 	u8			mgid_index;
 	u8			static_rate;
 	u8			hop_limit;
 	__be32			tclass_flowlabel;
 	u8			rgid[16];
 	u8			sched_queue;
 	u8			snooper_flags;
 	u8			reserved3[2];
 	u8			counter_index;
 	u8			reserved4[7];
 };

 struct mlx4_qp_context {
 	__be32			flags;
 	__be32			pd;
 	u8			mtu_msgmax;
 	u8			rq_size_stride;
 	u8			sq_size_stride;
 	u8			rlkey;
 	__be32			usr_page;
 	__be32			local_qpn;
 	__be32			remote_qpn;
 	struct			mlx4_qp_path pri_path;
 	struct			mlx4_qp_path alt_path;
 	__be32			params1;
 	u32			reserved1;
 	__be32			next_send_psn;
 	__be32			cqn_send;
 	u32			reserved2[2];
 	__be32			last_acked_psn;
 	__be32			ssn;
 	__be32			params2;
 	__be32			rnr_nextrecvpsn;
 	__be32			srcd;
 	__be32			cqn_recv;
 	__be64			db_rec_addr;
 	__be32			qkey;
 	__be32			srqn;
 	__be32			msn;
 	__be16			rq_wqe_counter;
 	__be16			sq_wqe_counter;
 	u32			reserved3[2];
 	__be32			param3;
 	__be32			nummmcpeers_basemkey;
 	u8			log_page_size;
 	u8			reserved4[2];
 	u8			mtt_base_addr_h;
 	__be32			mtt_base_addr_l;
 	u32			reserved5[10];
 };

 enum {
 	MLX4_WQE_CTRL_FENCE	= 1 << 6,
 	MLX4_WQE_CTRL_CQ_UPDATE	= 3 << 2,
 	MLX4_WQE_CTRL_SOLICITED	= 1 << 1,
 };

 struct mlx4_wqe_ctrl_seg {
 	__be32			owner_opcode;
 	u8			reserved2[3];
 	u8			fence_size;
 	/*
 	 * High 24 bits are SRC remote buffer; low 8 bits are flags:
 	 * [7]   SO (strong ordering)
 	 * [5]   TCP/UDP checksum
 	 * [4]   IP checksum
 	 * [3:2] C (generate completion queue entry)
 	 * [1]   SE (solicited event)
 	 */
 	__be32			srcrb_flags;
 	/*
 	 * imm is immediate data for send/RDMA write w/ immediate;
 	 * also invalidation key for send with invalidate; input
 	 * modifier for WQEs on CCQs.
 	 */
 	__be32			imm;
 };

 enum {
 	MLX4_WQE_MLX_VL15	= 1 << 17,
 	MLX4_WQE_MLX_SLR	= 1 << 16
 };

 struct mlx4_wqe_mlx_seg {
 	u8			owner;
 	u8			reserved1[2];
 	u8			opcode;
 	u8			reserved2[3];
 	u8			size;
 	/*
 	 * [17]    VL15
 	 * [16]    SLR
 	 * [15:12] static rate
 	 * [11:8]  SL
 	 * [4]     ICRC
 	 * [3:2]   C
 	 * [0]     FL (force loopback)
 	 */
 	__be32			flags;
 	__be16			rlid;
 	u16			reserved3;
 };

 struct mlx4_wqe_datagram_seg {
 	__be32			av[8];
 	__be32			dqpn;
 	__be32			qkey;
 	__be32			reservd[2];
 };

 struct mlx4_wqe_bind_seg {
 	__be32			flags1;
 	__be32			flags2;
 	__be32			new_rkey;
 	__be32			lkey;
 	__be64			addr;
 	__be64			length;
 };

 struct mlx4_wqe_fmr_seg {
 	__be32			flags;
 	__be32			mem_key;
 	__be64			buf_list;
 	__be64			start_addr;
 	__be64			reg_len;
 	__be32			offset;
 	__be32			page_size;
 	u32			reserved[2];
 };

 struct mlx4_wqe_fmr_ext_seg {
 	u8			flags;
 	u8			reserved;
 	__be16			app_mask;
 	__be16			wire_app_tag;
 	__be16			mem_app_tag;
 	__be32			wire_ref_tag_base;
 	__be32			mem_ref_tag_base;
 };

 struct mlx4_wqe_local_inval_seg {
 	u8			flags;
 	u8			reserved1[3];
 	__be32			mem_key;
 	u8			reserved2[3];
 	u8			guest_id;
 	__be64			pa;
 };

 struct mlx4_wqe_raddr_seg {
 	__be64			raddr;
 	__be32			rkey;
 	u32			reserved;
 };

 struct mlx4_wqe_atomic_seg {
 	__be64			swap_add;
 	__be64			compare;
 };

 struct mlx4_wqe_data_seg {
 	__be32			byte_count;
 	__be32			lkey;
 	__be64			addr;
 };

 enum {
 	MLX4_INLINE_ALIGN	= 64,
 };

 struct mlx4_wqe_inline_seg {
 	__be32			byte_count;
 };

 int mlx4_qp_modify(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
 		   enum mlx4_qp_state cur_state, enum mlx4_qp_state new_state,
 		   struct mlx4_qp_context *context, enum mlx4_qp_optpar optpar,
 		   int sqd_event, struct mlx4_qp *qp);

 int mlx4_qp_query(struct mlx4_dev *dev, struct mlx4_qp *qp,
 		  struct mlx4_qp_context *context);

 static inline struct mlx4_qp *__mlx4_qp_lookup(struct mlx4_dev *dev, u32 qpn)
 {
 	return radix_tree_lookup(&dev->qp_table_tree, qpn & (dev->caps.num_qps - 1));
 }

 void mlx4_qp_remove(struct mlx4_dev *dev, struct mlx4_qp *qp);

 #endif /* MLX4_QP_H */
	/*
	* Copyright (c) 2007 Cisco Systems, Inc. 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 MLX4_QP_H
	#define MLX4_QP_H

	#include <linux/types.h>

	#include <linux/mlx4/device.h>

	#define MLX4_INVALID_LKEY 0x100

	enum mlx4_qp_optpar {
	MLX4_QP_OPTPAR_ALT_ADDR_PATH = 1 << 0,
	MLX4_QP_OPTPAR_RRE = 1 << 1,
	MLX4_QP_OPTPAR_RAE = 1 << 2,
	MLX4_QP_OPTPAR_RWE = 1 << 3,
	MLX4_QP_OPTPAR_PKEY_INDEX = 1 << 4,
	MLX4_QP_OPTPAR_Q_KEY = 1 << 5,
	MLX4_QP_OPTPAR_RNR_TIMEOUT = 1 << 6,
	MLX4_QP_OPTPAR_PRIMARY_ADDR_PATH = 1 << 7,
	MLX4_QP_OPTPAR_SRA_MAX = 1 << 8,
	MLX4_QP_OPTPAR_RRA_MAX = 1 << 9,
	MLX4_QP_OPTPAR_PM_STATE = 1 << 10,
	MLX4_QP_OPTPAR_RETRY_COUNT = 1 << 12,
	MLX4_QP_OPTPAR_RNR_RETRY = 1 << 13,
	MLX4_QP_OPTPAR_ACK_TIMEOUT = 1 << 14,
	MLX4_QP_OPTPAR_SCHED_QUEUE = 1 << 16
	};

	enum mlx4_qp_state {
	MLX4_QP_STATE_RST = 0,
	MLX4_QP_STATE_INIT = 1,
	MLX4_QP_STATE_RTR = 2,
	MLX4_QP_STATE_RTS = 3,
	MLX4_QP_STATE_SQER = 4,
	MLX4_QP_STATE_SQD = 5,
	MLX4_QP_STATE_ERR = 6,
	MLX4_QP_STATE_SQ_DRAINING = 7,
	MLX4_QP_NUM_STATE
	};

	enum {
	MLX4_QP_ST_RC = 0x0,
	MLX4_QP_ST_UC = 0x1,
	MLX4_QP_ST_RD = 0x2,
	MLX4_QP_ST_UD = 0x3,
	MLX4_QP_ST_MLX = 0x7
	};

	enum {
	MLX4_QP_PM_MIGRATED = 0x3,
	MLX4_QP_PM_ARMED = 0x0,
	MLX4_QP_PM_REARM = 0x1
	};

	enum {
	/* params1 */
	MLX4_QP_BIT_SRE = 1 << 15,
	MLX4_QP_BIT_SWE = 1 << 14,
	MLX4_QP_BIT_SAE = 1 << 13,
	/* params2 */
	MLX4_QP_BIT_RRE = 1 << 15,
	MLX4_QP_BIT_RWE = 1 << 14,
	MLX4_QP_BIT_RAE = 1 << 13,
	MLX4_QP_BIT_RIC = 1 << 4,
	};

	struct mlx4_qp_path {
	u8 fl;
	u8 reserved1[2];
	u8 pkey_index;
	u8 reserved2;
	u8 grh_mylmc;
	__be16 rlid;
	u8 ackto;
	u8 mgid_index;
	u8 static_rate;
	u8 hop_limit;
	__be32 tclass_flowlabel;
	u8 rgid[16];
	u8 sched_queue;
	u8 snooper_flags;
	u8 reserved3[2];
	u8 counter_index;
	u8 reserved4[7];
	};

	struct mlx4_qp_context {
	__be32 flags;
	__be32 pd;
	u8 mtu_msgmax;
	u8 rq_size_stride;
	u8 sq_size_stride;
	u8 rlkey;
	__be32 usr_page;
	__be32 local_qpn;
	__be32 remote_qpn;
	struct mlx4_qp_path pri_path;
	struct mlx4_qp_path alt_path;
	__be32 params1;
	u32 reserved1;
	__be32 next_send_psn;
	__be32 cqn_send;
	u32 reserved2[2];
	__be32 last_acked_psn;
	__be32 ssn;
	__be32 params2;
	__be32 rnr_nextrecvpsn;
	__be32 srcd;
	__be32 cqn_recv;
	__be64 db_rec_addr;
	__be32 qkey;
	__be32 srqn;
	__be32 msn;
	__be16 rq_wqe_counter;
	__be16 sq_wqe_counter;
	u32 reserved3[2];
	__be32 param3;
	__be32 nummmcpeers_basemkey;
	u8 log_page_size;
	u8 reserved4[2];
	u8 mtt_base_addr_h;
	__be32 mtt_base_addr_l;
	u32 reserved5[10];
	};

	enum {
	MLX4_WQE_CTRL_FENCE = 1 << 6,
	MLX4_WQE_CTRL_CQ_UPDATE = 3 << 2,
	MLX4_WQE_CTRL_SOLICITED = 1 << 1,
	};

	struct mlx4_wqe_ctrl_seg {
	__be32 owner_opcode;
	u8 reserved2[3];
	u8 fence_size;
	/*
	* High 24 bits are SRC remote buffer; low 8 bits are flags:
	* [7] SO (strong ordering)
	* [5] TCP/UDP checksum
	* [4] IP checksum
	* [3:2] C (generate completion queue entry)
	* [1] SE (solicited event)
	*/
	__be32 srcrb_flags;
	/*
	* imm is immediate data for send/RDMA write w/ immediate;
	* also invalidation key for send with invalidate; input
	* modifier for WQEs on CCQs.
	*/
	__be32 imm;
	};

	enum {
	MLX4_WQE_MLX_VL15 = 1 << 17,
	MLX4_WQE_MLX_SLR = 1 << 16
	};

	struct mlx4_wqe_mlx_seg {
	u8 owner;
	u8 reserved1[2];
	u8 opcode;
	u8 reserved2[3];
	u8 size;
	/*
	* [17] VL15
	* [16] SLR
	* [15:12] static rate
	* [11:8] SL
	* [4] ICRC
	* [3:2] C
	* [0] FL (force loopback)
	*/
	__be32 flags;
	__be16 rlid;
	u16 reserved3;
	};

	struct mlx4_wqe_datagram_seg {
	__be32 av[8];
	__be32 dqpn;
	__be32 qkey;
	__be32 reservd[2];
	};

	struct mlx4_wqe_bind_seg {
	__be32 flags1;
	__be32 flags2;
	__be32 new_rkey;
	__be32 lkey;
	__be64 addr;
	__be64 length;
	};

	struct mlx4_wqe_fmr_seg {
	__be32 flags;
	__be32 mem_key;
	__be64 buf_list;
	__be64 start_addr;
	__be64 reg_len;
	__be32 offset;
	__be32 page_size;
	u32 reserved[2];
	};

	struct mlx4_wqe_fmr_ext_seg {
	u8 flags;
	u8 reserved;
	__be16 app_mask;
	__be16 wire_app_tag;
	__be16 mem_app_tag;
	__be32 wire_ref_tag_base;
	__be32 mem_ref_tag_base;
	};

	struct mlx4_wqe_local_inval_seg {
	u8 flags;
	u8 reserved1[3];
	__be32 mem_key;
	u8 reserved2[3];
	u8 guest_id;
	__be64 pa;
	};

	struct mlx4_wqe_raddr_seg {
	__be64 raddr;
	__be32 rkey;
	u32 reserved;
	};

	struct mlx4_wqe_atomic_seg {
	__be64 swap_add;
	__be64 compare;
	};

	struct mlx4_wqe_data_seg {
	__be32 byte_count;
	__be32 lkey;
	__be64 addr;
	};

	enum {
	MLX4_INLINE_ALIGN = 64,
	};

	struct mlx4_wqe_inline_seg {
	__be32 byte_count;
	};

	int mlx4_qp_modify(struct mlx4_dev dev, struct mlx4_mtt mtt,
	enum mlx4_qp_state cur_state, enum mlx4_qp_state new_state,
	struct mlx4_qp_context *context, enum mlx4_qp_optpar optpar,
	int sqd_event, struct mlx4_qp *qp);

	int mlx4_qp_query(struct mlx4_dev dev, struct mlx4_qp qp,
	struct mlx4_qp_context *context);

	static inline struct mlx4_qp __mlx4_qp_lookup(struct mlx4_dev dev, u32 qpn)
	{
	return radix_tree_lookup(&dev->qp_table_tree, qpn & (dev->caps.num_qps - 1));
	}

	void mlx4_qp_remove(struct mlx4_dev dev, struct mlx4_qp qp);

	#endif /* MLX4_QP_H */