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/*
* 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,
MLX4_QP_OPTPAR_COUNTER_INDEX = 1 << 20
};
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_RIC = 1 << 4,
};
struct mlx4_qp_path {
u8 fl;
u8 reserved1[2];
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 reserved3[2];
u8 reserved4[2];
u8 dmac[6];
};
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[2];
__be32 param3;
__be32 nummmcpeers_basemkey;
u8 log_page_size;
u8 reserved4[2];
u8 mtt_base_addr_h;
__be32 mtt_base_addr_l;
u8 VE;
u8 reserved5;
__be16 VFT_id_prio;
u8 reserved6;
u8 exch_size;
__be16 exch_base;
u8 VFT_hop_cnt;
u8 my_fc_id_idx;
__be16 reserved7;
u32 reserved8[7];
};
/* 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_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_VLAN = 1 << 6,
MLX4_WQE_CTRL_STRONG_ORDER = 1 << 7,
MLX4_WQE_CTRL_FORCE_LOOPBACK = 1 << 0,
};
struct mlx4_wqe_ctrl_seg {
__be32 owner_opcode;
__be16 vlan_tag;
u8 ins_vlan;
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,
MLX4_WQE_MLX_ICRC = 1 << 4
};
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;
__be16 vlan;
u8 mac[6];
};
struct mlx4_wqe_lso_seg {
__be32 mss_hdr_size;
__be32 header[0];
};
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_PERM_REMOTE_READ = 1 << 29,
MLX4_WQE_FMR_PERM_REMOTE_WRITE = 1 << 30,
MLX4_WQE_FMR_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 {
__be32 flags;
u32 reserved1;
__be32 mem_key;
u32 reserved2[2];
__be32 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_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;
};
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));
}
struct mlx4_qp *mlx4_qp_lookup_lock(struct mlx4_dev *dev, u32 qpn);
void mlx4_qp_remove(struct mlx4_dev *dev, struct mlx4_qp *qp);
int mlx4_qp_get_region(struct mlx4_dev *dev, enum mlx4_qp_region region,
int *base_qpn, int *cnt);
#endif /* MLX4_QP_H */