include/linux/mlx4/qp.h - kernel/msm-4.19 - 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/if_ether.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,
 	MLX4_QP_OPTPAR_COUNTER_INDEX		= 1 << 20,
 	MLX4_QP_OPTPAR_VLAN_STRIPPING		= 1 << 21,
 };

 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_XRC				= 0x6,
 	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_FPP				= 1 <<	3,
 	MLX4_QP_BIT_RIC				= 1 <<	4,
 };

 enum {
 	MLX4_RSS_HASH_XOR			= 0,
 	MLX4_RSS_HASH_TOP			= 1,

 	MLX4_RSS_UDP_IPV6			= 1 << 0,
 	MLX4_RSS_UDP_IPV4			= 1 << 1,
 	MLX4_RSS_TCP_IPV6			= 1 << 2,
 	MLX4_RSS_IPV6				= 1 << 3,
 	MLX4_RSS_TCP_IPV4			= 1 << 4,
 	MLX4_RSS_IPV4				= 1 << 5,

 	MLX4_RSS_BY_OUTER_HEADERS		= 0 << 6,
 	MLX4_RSS_BY_INNER_HEADERS		= 2 << 6,
 	MLX4_RSS_BY_INNER_HEADERS_IPONLY	= 3 << 6,

 	/* offset of mlx4_rss_context within mlx4_qp_context.pri_path */
 	MLX4_RSS_OFFSET_IN_QPC_PRI_PATH		= 0x24,
 	/* offset of being RSS indirection QP within mlx4_qp_context.flags */
 	MLX4_RSS_QPC_FLAG_OFFSET		= 13,
 };

 #define MLX4_EN_RSS_KEY_SIZE 40

 struct mlx4_rss_context {
 	__be32			base_qpn;
 	__be32			default_qpn;
 	u16			reserved;
 	u8			hash_fn;
 	u8			flags;
 	__be32			rss_key[MLX4_EN_RSS_KEY_SIZE / sizeof(__be32)];
 	__be32			base_qpn_udp;
 };

 struct mlx4_qp_path {
 	u8			fl;
 	u8			vlan_control;
 	u8			disable_pkey_check;
 	u8			pkey_index;
 	u8			counter_index;
 	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			vlan_index;
 	u8			feup;
 	u8			fvl_rx;
 	u8			reserved4[2];
 	u8			dmac[ETH_ALEN];
 };

 enum { /* fl */
 	MLX4_FL_CV      = 1 << 6,
 	MLX4_FL_ETH_HIDE_CQE_VLAN       = 1 << 2
 };
 enum { /* vlan_control */
 	MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED	= 1 << 6,
 	MLX4_VLAN_CTRL_ETH_TX_BLOCK_PRIO_TAGGED	= 1 << 5, /* 802.1p priority tag */
 	MLX4_VLAN_CTRL_ETH_TX_BLOCK_UNTAGGED	= 1 << 4,
 	MLX4_VLAN_CTRL_ETH_RX_BLOCK_TAGGED	= 1 << 2,
 	MLX4_VLAN_CTRL_ETH_RX_BLOCK_PRIO_TAGGED	= 1 << 1, /* 802.1p priority tag */
 	MLX4_VLAN_CTRL_ETH_RX_BLOCK_UNTAGGED	= 1 << 0
 };

 enum { /* feup */
 	MLX4_FEUP_FORCE_ETH_UP          = 1 << 6, /* force Eth UP */
 	MLX4_FSM_FORCE_ETH_SRC_MAC      = 1 << 5, /* force Source MAC */
 	MLX4_FVL_FORCE_ETH_VLAN         = 1 << 3  /* force Eth vlan */
 };

 enum { /* fvl_rx */
 	MLX4_FVL_RX_FORCE_ETH_VLAN      = 1 << 0 /* enforce Eth rx vlan */
 };

 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			xrcd;
 	__be32			cqn_recv;
 	__be64			db_rec_addr;
 	__be32			qkey;
 	__be32			srqn;
 	__be32			msn;
 	__be16			rq_wqe_counter;
 	__be16			sq_wqe_counter;
 	u32			reserved3;
 	__be16			rate_limit_params;
 	u8			reserved4;
 	u8			qos_vport;
 	__be32			param3;
 	__be32			nummmcpeers_basemkey;
 	u8			log_page_size;
 	u8			reserved5[2];
 	u8			mtt_base_addr_h;
 	__be32			mtt_base_addr_l;
 	u32			reserved6[10];
 };

 struct mlx4_update_qp_context {
 	__be64			qp_mask;
 	__be64			primary_addr_path_mask;
 	__be64			secondary_addr_path_mask;
 	u64			reserved1;
 	struct mlx4_qp_context	qp_context;
 	u64			reserved2[58];
 };

 enum {
 	MLX4_UPD_QP_MASK_PM_STATE	= 32,
 	MLX4_UPD_QP_MASK_VSD		= 33,
 	MLX4_UPD_QP_MASK_QOS_VPP	= 34,
 	MLX4_UPD_QP_MASK_RATE_LIMIT	= 35,
 };

 enum {
 	MLX4_UPD_QP_PATH_MASK_PKEY_INDEX		= 0 + 32,
 	MLX4_UPD_QP_PATH_MASK_FSM			= 1 + 32,
 	MLX4_UPD_QP_PATH_MASK_MAC_INDEX			= 2 + 32,
 	MLX4_UPD_QP_PATH_MASK_FVL			= 3 + 32,
 	MLX4_UPD_QP_PATH_MASK_CV			= 4 + 32,
 	MLX4_UPD_QP_PATH_MASK_VLAN_INDEX		= 5 + 32,
 	MLX4_UPD_QP_PATH_MASK_ETH_HIDE_CQE_VLAN		= 6 + 32,
 	MLX4_UPD_QP_PATH_MASK_ETH_TX_BLOCK_UNTAGGED	= 7 + 32,
 	MLX4_UPD_QP_PATH_MASK_ETH_TX_BLOCK_1P		= 8 + 32,
 	MLX4_UPD_QP_PATH_MASK_ETH_TX_BLOCK_TAGGED	= 9 + 32,
 	MLX4_UPD_QP_PATH_MASK_ETH_RX_BLOCK_UNTAGGED	= 10 + 32,
 	MLX4_UPD_QP_PATH_MASK_ETH_RX_BLOCK_1P		= 11 + 32,
 	MLX4_UPD_QP_PATH_MASK_ETH_RX_BLOCK_TAGGED	= 12 + 32,
 	MLX4_UPD_QP_PATH_MASK_FEUP			= 13 + 32,
 	MLX4_UPD_QP_PATH_MASK_SCHED_QUEUE		= 14 + 32,
 	MLX4_UPD_QP_PATH_MASK_IF_COUNTER_INDEX		= 15 + 32,
 	MLX4_UPD_QP_PATH_MASK_FVL_RX			= 16 + 32,
 };

 enum { /* param3 */
 	MLX4_STRIP_VLAN = 1 << 30
 };

 /* Which firmware version adds support for NEC (NoErrorCompletion) bit */
 #define MLX4_FW_VER_WQE_CTRL_NEC mlx4_fw_ver(2, 2, 232)

 enum {
 	MLX4_WQE_CTRL_NEC		= 1 << 29,
 	MLX4_WQE_CTRL_IIP		= 1 << 28,
 	MLX4_WQE_CTRL_ILP		= 1 << 27,
 	MLX4_WQE_CTRL_FENCE		= 1 << 6,
 	MLX4_WQE_CTRL_CQ_UPDATE		= 3 << 2,
 	MLX4_WQE_CTRL_SOLICITED		= 1 << 1,
 	MLX4_WQE_CTRL_IP_CSUM		= 1 << 4,
 	MLX4_WQE_CTRL_TCP_UDP_CSUM	= 1 << 5,
 	MLX4_WQE_CTRL_INS_CVLAN		= 1 << 6,
 	MLX4_WQE_CTRL_STRONG_ORDER	= 1 << 7,
 	MLX4_WQE_CTRL_FORCE_LOOPBACK	= 1 << 0,
 };

 struct mlx4_wqe_ctrl_seg {
 	__be32			owner_opcode;
 	union {
 		struct {
 			__be16			vlan_tag;
 			u8			ins_vlan;
 			u8			fence_size;
 		};
 		__be32			bf_qpn;
 	};
 	/*
 	 * 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)
 	 * [0]   FL (force loopback)
 	 */
 	union {
 		__be32			srcrb_flags;
 		__be16			srcrb_flags16[2];
 	};
 	/*
 	 * 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;
 	__be16			sched_prio;
 	u8			reserved2;
 	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;
 	__be16			vlan;
 	u8			mac[ETH_ALEN];
 };

 struct mlx4_wqe_lso_seg {
 	__be32			mss_hdr_size;
 	__be32			header[0];
 };

 enum mlx4_wqe_bind_seg_flags2 {
 	MLX4_WQE_BIND_ZERO_BASED = (1 << 30),
 	MLX4_WQE_BIND_TYPE_2     = (1 << 31),
 };

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

 enum {
 	MLX4_WQE_FMR_PERM_LOCAL_READ	= 1 << 27,
 	MLX4_WQE_FMR_PERM_LOCAL_WRITE	= 1 << 28,
 	MLX4_WQE_FMR_AND_BIND_PERM_REMOTE_READ	= 1 << 29,
 	MLX4_WQE_FMR_AND_BIND_PERM_REMOTE_WRITE	= 1 << 30,
 	MLX4_WQE_FMR_AND_BIND_PERM_ATOMIC	= 1 << 31
 };

 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 {
 	u64			reserved1;
 	__be32			mem_key;
 	u32			reserved2;
 	u64			reserved3[2];
 };

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

 struct mlx4_wqe_atomic_seg {
 	__be64			swap_add;
 	__be64			compare;
 };

 struct mlx4_wqe_masked_atomic_seg {
 	__be64			swap_add;
 	__be64			compare;
 	__be64			swap_add_mask;
 	__be64			compare_mask;
 };

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

 enum {
 	MLX4_INLINE_ALIGN	= 64,
 	MLX4_INLINE_SEG		= 1 << 31,
 };

 struct mlx4_wqe_inline_seg {
 	__be32			byte_count;
 };

 enum mlx4_update_qp_attr {
 	MLX4_UPDATE_QP_SMAC		= 1 << 0,
 	MLX4_UPDATE_QP_VSD		= 1 << 1,
 	MLX4_UPDATE_QP_RATE_LIMIT	= 1 << 2,
 	MLX4_UPDATE_QP_QOS_VPORT	= 1 << 3,
 	MLX4_UPDATE_QP_SUPPORTED_ATTRS	= (1 << 4) - 1
 };

 enum mlx4_update_qp_params_flags {
 	MLX4_UPDATE_QP_PARAMS_FLAGS_VSD_ENABLE		= 1 << 0,
 };

 struct mlx4_update_qp_params {
 	u8	smac_index;
 	u8	qos_vport;
 	u32	flags;
 	u16	rate_unit;
 	u16	rate_val;
 };

 int mlx4_update_qp(struct mlx4_dev *dev, u32 qpn,
 		   enum mlx4_update_qp_attr attr,
 		   struct mlx4_update_qp_params *params);
 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);

 int mlx4_qp_to_ready(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
 		     struct mlx4_qp_context *context,
 		     struct mlx4_qp *qp, enum mlx4_qp_state *qp_state);

 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/if_ether.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,
	MLX4_QP_OPTPAR_COUNTER_INDEX = 1 << 20,
	MLX4_QP_OPTPAR_VLAN_STRIPPING = 1 << 21,
	};

	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_XRC = 0x6,
	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_FPP = 1 << 3,
	MLX4_QP_BIT_RIC = 1 << 4,
	};

	enum {
	MLX4_RSS_HASH_XOR = 0,
	MLX4_RSS_HASH_TOP = 1,

	MLX4_RSS_UDP_IPV6 = 1 << 0,
	MLX4_RSS_UDP_IPV4 = 1 << 1,
	MLX4_RSS_TCP_IPV6 = 1 << 2,
	MLX4_RSS_IPV6 = 1 << 3,
	MLX4_RSS_TCP_IPV4 = 1 << 4,
	MLX4_RSS_IPV4 = 1 << 5,

	MLX4_RSS_BY_OUTER_HEADERS = 0 << 6,
	MLX4_RSS_BY_INNER_HEADERS = 2 << 6,
	MLX4_RSS_BY_INNER_HEADERS_IPONLY = 3 << 6,

	/* offset of mlx4_rss_context within mlx4_qp_context.pri_path */
	MLX4_RSS_OFFSET_IN_QPC_PRI_PATH = 0x24,
	/* offset of being RSS indirection QP within mlx4_qp_context.flags */
	MLX4_RSS_QPC_FLAG_OFFSET = 13,
	};

	#define MLX4_EN_RSS_KEY_SIZE 40

	struct mlx4_rss_context {
	__be32 base_qpn;
	__be32 default_qpn;
	u16 reserved;
	u8 hash_fn;
	u8 flags;
	__be32 rss_key[MLX4_EN_RSS_KEY_SIZE / sizeof(__be32)];
	__be32 base_qpn_udp;
	};

	struct mlx4_qp_path {
	u8 fl;
	u8 vlan_control;
	u8 disable_pkey_check;
	u8 pkey_index;
	u8 counter_index;
	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 vlan_index;
	u8 feup;
	u8 fvl_rx;
	u8 reserved4[2];
	u8 dmac[ETH_ALEN];
	};

	enum { /* fl */
	MLX4_FL_CV = 1 << 6,
	MLX4_FL_ETH_HIDE_CQE_VLAN = 1 << 2
	};
	enum { /* vlan_control */
	MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED = 1 << 6,
	MLX4_VLAN_CTRL_ETH_TX_BLOCK_PRIO_TAGGED = 1 << 5, /* 802.1p priority tag */
	MLX4_VLAN_CTRL_ETH_TX_BLOCK_UNTAGGED = 1 << 4,
	MLX4_VLAN_CTRL_ETH_RX_BLOCK_TAGGED = 1 << 2,
	MLX4_VLAN_CTRL_ETH_RX_BLOCK_PRIO_TAGGED = 1 << 1, /* 802.1p priority tag */
	MLX4_VLAN_CTRL_ETH_RX_BLOCK_UNTAGGED = 1 << 0
	};

	enum { /* feup */
	MLX4_FEUP_FORCE_ETH_UP = 1 << 6, /* force Eth UP */
	MLX4_FSM_FORCE_ETH_SRC_MAC = 1 << 5, /* force Source MAC */
	MLX4_FVL_FORCE_ETH_VLAN = 1 << 3 /* force Eth vlan */
	};

	enum { /* fvl_rx */
	MLX4_FVL_RX_FORCE_ETH_VLAN = 1 << 0 /* enforce Eth rx vlan */
	};

	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 xrcd;
	__be32 cqn_recv;
	__be64 db_rec_addr;
	__be32 qkey;
	__be32 srqn;
	__be32 msn;
	__be16 rq_wqe_counter;
	__be16 sq_wqe_counter;
	u32 reserved3;
	__be16 rate_limit_params;
	u8 reserved4;
	u8 qos_vport;
	__be32 param3;
	__be32 nummmcpeers_basemkey;
	u8 log_page_size;
	u8 reserved5[2];
	u8 mtt_base_addr_h;
	__be32 mtt_base_addr_l;
	u32 reserved6[10];
	};

	struct mlx4_update_qp_context {
	__be64 qp_mask;
	__be64 primary_addr_path_mask;
	__be64 secondary_addr_path_mask;
	u64 reserved1;
	struct mlx4_qp_context qp_context;
	u64 reserved2[58];
	};

	enum {
	MLX4_UPD_QP_MASK_PM_STATE = 32,
	MLX4_UPD_QP_MASK_VSD = 33,
	MLX4_UPD_QP_MASK_QOS_VPP = 34,
	MLX4_UPD_QP_MASK_RATE_LIMIT = 35,
	};

	enum {
	MLX4_UPD_QP_PATH_MASK_PKEY_INDEX = 0 + 32,
	MLX4_UPD_QP_PATH_MASK_FSM = 1 + 32,
	MLX4_UPD_QP_PATH_MASK_MAC_INDEX = 2 + 32,
	MLX4_UPD_QP_PATH_MASK_FVL = 3 + 32,
	MLX4_UPD_QP_PATH_MASK_CV = 4 + 32,
	MLX4_UPD_QP_PATH_MASK_VLAN_INDEX = 5 + 32,
	MLX4_UPD_QP_PATH_MASK_ETH_HIDE_CQE_VLAN = 6 + 32,
	MLX4_UPD_QP_PATH_MASK_ETH_TX_BLOCK_UNTAGGED = 7 + 32,
	MLX4_UPD_QP_PATH_MASK_ETH_TX_BLOCK_1P = 8 + 32,
	MLX4_UPD_QP_PATH_MASK_ETH_TX_BLOCK_TAGGED = 9 + 32,
	MLX4_UPD_QP_PATH_MASK_ETH_RX_BLOCK_UNTAGGED = 10 + 32,
	MLX4_UPD_QP_PATH_MASK_ETH_RX_BLOCK_1P = 11 + 32,
	MLX4_UPD_QP_PATH_MASK_ETH_RX_BLOCK_TAGGED = 12 + 32,
	MLX4_UPD_QP_PATH_MASK_FEUP = 13 + 32,
	MLX4_UPD_QP_PATH_MASK_SCHED_QUEUE = 14 + 32,
	MLX4_UPD_QP_PATH_MASK_IF_COUNTER_INDEX = 15 + 32,
	MLX4_UPD_QP_PATH_MASK_FVL_RX = 16 + 32,
	};

	enum { /* param3 */
	MLX4_STRIP_VLAN = 1 << 30
	};

	/* Which firmware version adds support for NEC (NoErrorCompletion) bit */
	#define MLX4_FW_VER_WQE_CTRL_NEC mlx4_fw_ver(2, 2, 232)

	enum {
	MLX4_WQE_CTRL_NEC = 1 << 29,
	MLX4_WQE_CTRL_IIP = 1 << 28,
	MLX4_WQE_CTRL_ILP = 1 << 27,
	MLX4_WQE_CTRL_FENCE = 1 << 6,
	MLX4_WQE_CTRL_CQ_UPDATE = 3 << 2,
	MLX4_WQE_CTRL_SOLICITED = 1 << 1,
	MLX4_WQE_CTRL_IP_CSUM = 1 << 4,
	MLX4_WQE_CTRL_TCP_UDP_CSUM = 1 << 5,
	MLX4_WQE_CTRL_INS_CVLAN = 1 << 6,
	MLX4_WQE_CTRL_STRONG_ORDER = 1 << 7,
	MLX4_WQE_CTRL_FORCE_LOOPBACK = 1 << 0,
	};

	struct mlx4_wqe_ctrl_seg {
	__be32 owner_opcode;
	union {
	struct {
	__be16 vlan_tag;
	u8 ins_vlan;
	u8 fence_size;
	};
	__be32 bf_qpn;
	};
	/*
	* 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)
	* [0] FL (force loopback)
	*/
	union {
	__be32 srcrb_flags;
	__be16 srcrb_flags16[2];
	};
	/*
	* 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;
	__be16 sched_prio;
	u8 reserved2;
	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;
	__be16 vlan;
	u8 mac[ETH_ALEN];
	};

	struct mlx4_wqe_lso_seg {
	__be32 mss_hdr_size;
	__be32 header[0];
	};

	enum mlx4_wqe_bind_seg_flags2 {
	MLX4_WQE_BIND_ZERO_BASED = (1 << 30),
	MLX4_WQE_BIND_TYPE_2 = (1 << 31),
	};

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

	enum {
	MLX4_WQE_FMR_PERM_LOCAL_READ = 1 << 27,
	MLX4_WQE_FMR_PERM_LOCAL_WRITE = 1 << 28,
	MLX4_WQE_FMR_AND_BIND_PERM_REMOTE_READ = 1 << 29,
	MLX4_WQE_FMR_AND_BIND_PERM_REMOTE_WRITE = 1 << 30,
	MLX4_WQE_FMR_AND_BIND_PERM_ATOMIC = 1 << 31
	};

	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 {
	u64 reserved1;
	__be32 mem_key;
	u32 reserved2;
	u64 reserved3[2];
	};

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

	struct mlx4_wqe_atomic_seg {
	__be64 swap_add;
	__be64 compare;
	};

	struct mlx4_wqe_masked_atomic_seg {
	__be64 swap_add;
	__be64 compare;
	__be64 swap_add_mask;
	__be64 compare_mask;
	};

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

	enum {
	MLX4_INLINE_ALIGN = 64,
	MLX4_INLINE_SEG = 1 << 31,
	};

	struct mlx4_wqe_inline_seg {
	__be32 byte_count;
	};

	enum mlx4_update_qp_attr {
	MLX4_UPDATE_QP_SMAC = 1 << 0,
	MLX4_UPDATE_QP_VSD = 1 << 1,
	MLX4_UPDATE_QP_RATE_LIMIT = 1 << 2,
	MLX4_UPDATE_QP_QOS_VPORT = 1 << 3,
	MLX4_UPDATE_QP_SUPPORTED_ATTRS = (1 << 4) - 1
	};

	enum mlx4_update_qp_params_flags {
	MLX4_UPDATE_QP_PARAMS_FLAGS_VSD_ENABLE = 1 << 0,
	};

	struct mlx4_update_qp_params {
	u8 smac_index;
	u8 qos_vport;
	u32 flags;
	u16 rate_unit;
	u16 rate_val;
	};

	int mlx4_update_qp(struct mlx4_dev *dev, u32 qpn,
	enum mlx4_update_qp_attr attr,
	struct mlx4_update_qp_params *params);
	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);

	int mlx4_qp_to_ready(struct mlx4_dev dev, struct mlx4_mtt mtt,
	struct mlx4_qp_context *context,
	struct mlx4_qp qp, enum mlx4_qp_state qp_state);

	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 */