c1b43dca13
Using blue flame can improve latency by allowing the HW to more efficiently access the WQE. This patch presents two functions that are used to allocate or release HW resources for using blue flame; the caller need to supply a struct mlx4_bf object when allocating resources. Consumers that make use of this API should post doorbells to the UAR object pointed by the initialized struct mlx4_bf; Signed-off-by: Eli Cohen <eli@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
571 lines
15 KiB
C
571 lines
15 KiB
C
/*
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* Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef MLX4_DEVICE_H
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#define MLX4_DEVICE_H
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#include <linux/pci.h>
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#include <linux/completion.h>
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#include <linux/radix-tree.h>
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#include <asm/atomic.h>
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#define MAX_MSIX_P_PORT 17
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#define MAX_MSIX 64
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#define MSIX_LEGACY_SZ 4
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#define MIN_MSIX_P_PORT 5
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enum {
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MLX4_FLAG_MSI_X = 1 << 0,
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MLX4_FLAG_OLD_PORT_CMDS = 1 << 1,
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};
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enum {
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MLX4_MAX_PORTS = 2
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};
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enum {
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MLX4_BOARD_ID_LEN = 64
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};
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enum {
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MLX4_DEV_CAP_FLAG_RC = 1 << 0,
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MLX4_DEV_CAP_FLAG_UC = 1 << 1,
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MLX4_DEV_CAP_FLAG_UD = 1 << 2,
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MLX4_DEV_CAP_FLAG_SRQ = 1 << 6,
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MLX4_DEV_CAP_FLAG_IPOIB_CSUM = 1 << 7,
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MLX4_DEV_CAP_FLAG_BAD_PKEY_CNTR = 1 << 8,
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MLX4_DEV_CAP_FLAG_BAD_QKEY_CNTR = 1 << 9,
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MLX4_DEV_CAP_FLAG_DPDP = 1 << 12,
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MLX4_DEV_CAP_FLAG_BLH = 1 << 15,
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MLX4_DEV_CAP_FLAG_MEM_WINDOW = 1 << 16,
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MLX4_DEV_CAP_FLAG_APM = 1 << 17,
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MLX4_DEV_CAP_FLAG_ATOMIC = 1 << 18,
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MLX4_DEV_CAP_FLAG_RAW_MCAST = 1 << 19,
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MLX4_DEV_CAP_FLAG_UD_AV_PORT = 1 << 20,
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MLX4_DEV_CAP_FLAG_UD_MCAST = 1 << 21,
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MLX4_DEV_CAP_FLAG_IBOE = 1 << 30
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};
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enum {
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MLX4_BMME_FLAG_LOCAL_INV = 1 << 6,
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MLX4_BMME_FLAG_REMOTE_INV = 1 << 7,
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MLX4_BMME_FLAG_TYPE_2_WIN = 1 << 9,
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MLX4_BMME_FLAG_RESERVED_LKEY = 1 << 10,
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MLX4_BMME_FLAG_FAST_REG_WR = 1 << 11,
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};
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enum mlx4_event {
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MLX4_EVENT_TYPE_COMP = 0x00,
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MLX4_EVENT_TYPE_PATH_MIG = 0x01,
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MLX4_EVENT_TYPE_COMM_EST = 0x02,
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MLX4_EVENT_TYPE_SQ_DRAINED = 0x03,
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MLX4_EVENT_TYPE_SRQ_QP_LAST_WQE = 0x13,
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MLX4_EVENT_TYPE_SRQ_LIMIT = 0x14,
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MLX4_EVENT_TYPE_CQ_ERROR = 0x04,
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MLX4_EVENT_TYPE_WQ_CATAS_ERROR = 0x05,
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MLX4_EVENT_TYPE_EEC_CATAS_ERROR = 0x06,
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MLX4_EVENT_TYPE_PATH_MIG_FAILED = 0x07,
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MLX4_EVENT_TYPE_WQ_INVAL_REQ_ERROR = 0x10,
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MLX4_EVENT_TYPE_WQ_ACCESS_ERROR = 0x11,
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MLX4_EVENT_TYPE_SRQ_CATAS_ERROR = 0x12,
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MLX4_EVENT_TYPE_LOCAL_CATAS_ERROR = 0x08,
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MLX4_EVENT_TYPE_PORT_CHANGE = 0x09,
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MLX4_EVENT_TYPE_EQ_OVERFLOW = 0x0f,
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MLX4_EVENT_TYPE_ECC_DETECT = 0x0e,
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MLX4_EVENT_TYPE_CMD = 0x0a
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};
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enum {
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MLX4_PORT_CHANGE_SUBTYPE_DOWN = 1,
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MLX4_PORT_CHANGE_SUBTYPE_ACTIVE = 4
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};
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enum {
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MLX4_PERM_LOCAL_READ = 1 << 10,
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MLX4_PERM_LOCAL_WRITE = 1 << 11,
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MLX4_PERM_REMOTE_READ = 1 << 12,
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MLX4_PERM_REMOTE_WRITE = 1 << 13,
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MLX4_PERM_ATOMIC = 1 << 14
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};
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enum {
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MLX4_OPCODE_NOP = 0x00,
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MLX4_OPCODE_SEND_INVAL = 0x01,
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MLX4_OPCODE_RDMA_WRITE = 0x08,
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MLX4_OPCODE_RDMA_WRITE_IMM = 0x09,
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MLX4_OPCODE_SEND = 0x0a,
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MLX4_OPCODE_SEND_IMM = 0x0b,
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MLX4_OPCODE_LSO = 0x0e,
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MLX4_OPCODE_RDMA_READ = 0x10,
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MLX4_OPCODE_ATOMIC_CS = 0x11,
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MLX4_OPCODE_ATOMIC_FA = 0x12,
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MLX4_OPCODE_MASKED_ATOMIC_CS = 0x14,
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MLX4_OPCODE_MASKED_ATOMIC_FA = 0x15,
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MLX4_OPCODE_BIND_MW = 0x18,
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MLX4_OPCODE_FMR = 0x19,
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MLX4_OPCODE_LOCAL_INVAL = 0x1b,
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MLX4_OPCODE_CONFIG_CMD = 0x1f,
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MLX4_RECV_OPCODE_RDMA_WRITE_IMM = 0x00,
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MLX4_RECV_OPCODE_SEND = 0x01,
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MLX4_RECV_OPCODE_SEND_IMM = 0x02,
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MLX4_RECV_OPCODE_SEND_INVAL = 0x03,
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MLX4_CQE_OPCODE_ERROR = 0x1e,
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MLX4_CQE_OPCODE_RESIZE = 0x16,
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};
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enum {
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MLX4_STAT_RATE_OFFSET = 5
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};
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enum mlx4_protocol {
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MLX4_PROT_IB_IPV6 = 0,
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MLX4_PROT_ETH,
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MLX4_PROT_IB_IPV4,
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MLX4_PROT_FCOE
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};
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enum {
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MLX4_MTT_FLAG_PRESENT = 1
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};
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enum mlx4_qp_region {
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MLX4_QP_REGION_FW = 0,
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MLX4_QP_REGION_ETH_ADDR,
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MLX4_QP_REGION_FC_ADDR,
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MLX4_QP_REGION_FC_EXCH,
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MLX4_NUM_QP_REGION
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};
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enum mlx4_port_type {
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MLX4_PORT_TYPE_IB = 1,
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MLX4_PORT_TYPE_ETH = 2,
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MLX4_PORT_TYPE_AUTO = 3
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};
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enum mlx4_special_vlan_idx {
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MLX4_NO_VLAN_IDX = 0,
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MLX4_VLAN_MISS_IDX,
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MLX4_VLAN_REGULAR
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};
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enum mlx4_steer_type {
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MLX4_MC_STEER = 0,
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MLX4_UC_STEER,
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MLX4_NUM_STEERS
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};
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enum {
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MLX4_NUM_FEXCH = 64 * 1024,
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};
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enum {
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MLX4_MAX_FAST_REG_PAGES = 511,
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};
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static inline u64 mlx4_fw_ver(u64 major, u64 minor, u64 subminor)
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{
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return (major << 32) | (minor << 16) | subminor;
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}
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struct mlx4_caps {
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u64 fw_ver;
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int num_ports;
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int vl_cap[MLX4_MAX_PORTS + 1];
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int ib_mtu_cap[MLX4_MAX_PORTS + 1];
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__be32 ib_port_def_cap[MLX4_MAX_PORTS + 1];
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u64 def_mac[MLX4_MAX_PORTS + 1];
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int eth_mtu_cap[MLX4_MAX_PORTS + 1];
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int gid_table_len[MLX4_MAX_PORTS + 1];
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int pkey_table_len[MLX4_MAX_PORTS + 1];
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int trans_type[MLX4_MAX_PORTS + 1];
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int vendor_oui[MLX4_MAX_PORTS + 1];
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int wavelength[MLX4_MAX_PORTS + 1];
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u64 trans_code[MLX4_MAX_PORTS + 1];
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int local_ca_ack_delay;
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int num_uars;
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int bf_reg_size;
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int bf_regs_per_page;
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int max_sq_sg;
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int max_rq_sg;
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int num_qps;
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int max_wqes;
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int max_sq_desc_sz;
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int max_rq_desc_sz;
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int max_qp_init_rdma;
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int max_qp_dest_rdma;
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int sqp_start;
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int num_srqs;
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int max_srq_wqes;
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int max_srq_sge;
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int reserved_srqs;
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int num_cqs;
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int max_cqes;
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int reserved_cqs;
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int num_eqs;
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int reserved_eqs;
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int num_comp_vectors;
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int comp_pool;
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int num_mpts;
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int num_mtt_segs;
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int mtts_per_seg;
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int fmr_reserved_mtts;
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int reserved_mtts;
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int reserved_mrws;
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int reserved_uars;
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int num_mgms;
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int num_amgms;
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int reserved_mcgs;
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int num_qp_per_mgm;
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int num_pds;
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int reserved_pds;
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int mtt_entry_sz;
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u32 max_msg_sz;
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u32 page_size_cap;
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u32 flags;
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u32 bmme_flags;
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u32 reserved_lkey;
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u16 stat_rate_support;
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int udp_rss;
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int loopback_support;
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int vep_uc_steering;
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int vep_mc_steering;
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int wol;
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u8 port_width_cap[MLX4_MAX_PORTS + 1];
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int max_gso_sz;
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int reserved_qps_cnt[MLX4_NUM_QP_REGION];
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int reserved_qps;
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int reserved_qps_base[MLX4_NUM_QP_REGION];
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int log_num_macs;
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int log_num_vlans;
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int log_num_prios;
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enum mlx4_port_type port_type[MLX4_MAX_PORTS + 1];
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u8 supported_type[MLX4_MAX_PORTS + 1];
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u32 port_mask;
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enum mlx4_port_type possible_type[MLX4_MAX_PORTS + 1];
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};
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struct mlx4_buf_list {
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void *buf;
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dma_addr_t map;
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};
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struct mlx4_buf {
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struct mlx4_buf_list direct;
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struct mlx4_buf_list *page_list;
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int nbufs;
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int npages;
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int page_shift;
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};
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struct mlx4_mtt {
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u32 first_seg;
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int order;
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int page_shift;
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};
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enum {
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MLX4_DB_PER_PAGE = PAGE_SIZE / 4
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};
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struct mlx4_db_pgdir {
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struct list_head list;
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DECLARE_BITMAP(order0, MLX4_DB_PER_PAGE);
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DECLARE_BITMAP(order1, MLX4_DB_PER_PAGE / 2);
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unsigned long *bits[2];
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__be32 *db_page;
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dma_addr_t db_dma;
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};
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struct mlx4_ib_user_db_page;
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struct mlx4_db {
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__be32 *db;
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union {
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struct mlx4_db_pgdir *pgdir;
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struct mlx4_ib_user_db_page *user_page;
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} u;
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dma_addr_t dma;
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int index;
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int order;
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};
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struct mlx4_hwq_resources {
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struct mlx4_db db;
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struct mlx4_mtt mtt;
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struct mlx4_buf buf;
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};
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struct mlx4_mr {
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struct mlx4_mtt mtt;
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u64 iova;
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u64 size;
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u32 key;
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u32 pd;
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u32 access;
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int enabled;
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};
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struct mlx4_fmr {
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struct mlx4_mr mr;
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struct mlx4_mpt_entry *mpt;
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__be64 *mtts;
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dma_addr_t dma_handle;
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int max_pages;
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int max_maps;
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int maps;
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u8 page_shift;
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};
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struct mlx4_uar {
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unsigned long pfn;
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int index;
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struct list_head bf_list;
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unsigned free_bf_bmap;
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void __iomem *map;
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void __iomem *bf_map;
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};
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struct mlx4_bf {
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unsigned long offset;
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int buf_size;
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struct mlx4_uar *uar;
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void __iomem *reg;
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};
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struct mlx4_cq {
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void (*comp) (struct mlx4_cq *);
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void (*event) (struct mlx4_cq *, enum mlx4_event);
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struct mlx4_uar *uar;
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u32 cons_index;
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__be32 *set_ci_db;
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__be32 *arm_db;
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int arm_sn;
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int cqn;
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unsigned vector;
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atomic_t refcount;
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struct completion free;
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};
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struct mlx4_qp {
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void (*event) (struct mlx4_qp *, enum mlx4_event);
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int qpn;
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atomic_t refcount;
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struct completion free;
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};
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struct mlx4_srq {
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void (*event) (struct mlx4_srq *, enum mlx4_event);
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int srqn;
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int max;
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int max_gs;
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int wqe_shift;
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atomic_t refcount;
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struct completion free;
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};
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struct mlx4_av {
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__be32 port_pd;
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u8 reserved1;
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u8 g_slid;
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__be16 dlid;
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u8 reserved2;
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u8 gid_index;
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u8 stat_rate;
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u8 hop_limit;
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__be32 sl_tclass_flowlabel;
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u8 dgid[16];
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};
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struct mlx4_eth_av {
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__be32 port_pd;
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u8 reserved1;
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u8 smac_idx;
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u16 reserved2;
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u8 reserved3;
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u8 gid_index;
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u8 stat_rate;
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u8 hop_limit;
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__be32 sl_tclass_flowlabel;
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u8 dgid[16];
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u32 reserved4[2];
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__be16 vlan;
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u8 mac[6];
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};
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union mlx4_ext_av {
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struct mlx4_av ib;
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struct mlx4_eth_av eth;
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};
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struct mlx4_dev {
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struct pci_dev *pdev;
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unsigned long flags;
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struct mlx4_caps caps;
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struct radix_tree_root qp_table_tree;
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u8 rev_id;
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char board_id[MLX4_BOARD_ID_LEN];
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};
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struct mlx4_init_port_param {
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int set_guid0;
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int set_node_guid;
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int set_si_guid;
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u16 mtu;
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int port_width_cap;
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u16 vl_cap;
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u16 max_gid;
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u16 max_pkey;
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u64 guid0;
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u64 node_guid;
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u64 si_guid;
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};
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#define mlx4_foreach_port(port, dev, type) \
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for ((port) = 1; (port) <= (dev)->caps.num_ports; (port)++) \
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if (((type) == MLX4_PORT_TYPE_IB ? (dev)->caps.port_mask : \
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~(dev)->caps.port_mask) & 1 << ((port) - 1))
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#define mlx4_foreach_ib_transport_port(port, dev) \
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for ((port) = 1; (port) <= (dev)->caps.num_ports; (port)++) \
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if (((dev)->caps.port_mask & 1 << ((port) - 1)) || \
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((dev)->caps.flags & MLX4_DEV_CAP_FLAG_IBOE))
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int mlx4_buf_alloc(struct mlx4_dev *dev, int size, int max_direct,
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struct mlx4_buf *buf);
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void mlx4_buf_free(struct mlx4_dev *dev, int size, struct mlx4_buf *buf);
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static inline void *mlx4_buf_offset(struct mlx4_buf *buf, int offset)
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{
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if (BITS_PER_LONG == 64 || buf->nbufs == 1)
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return buf->direct.buf + offset;
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else
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return buf->page_list[offset >> PAGE_SHIFT].buf +
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(offset & (PAGE_SIZE - 1));
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}
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int mlx4_pd_alloc(struct mlx4_dev *dev, u32 *pdn);
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void mlx4_pd_free(struct mlx4_dev *dev, u32 pdn);
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int mlx4_uar_alloc(struct mlx4_dev *dev, struct mlx4_uar *uar);
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void mlx4_uar_free(struct mlx4_dev *dev, struct mlx4_uar *uar);
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int mlx4_bf_alloc(struct mlx4_dev *dev, struct mlx4_bf *bf);
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void mlx4_bf_free(struct mlx4_dev *dev, struct mlx4_bf *bf);
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int mlx4_mtt_init(struct mlx4_dev *dev, int npages, int page_shift,
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struct mlx4_mtt *mtt);
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void mlx4_mtt_cleanup(struct mlx4_dev *dev, struct mlx4_mtt *mtt);
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u64 mlx4_mtt_addr(struct mlx4_dev *dev, struct mlx4_mtt *mtt);
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int mlx4_mr_alloc(struct mlx4_dev *dev, u32 pd, u64 iova, u64 size, u32 access,
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int npages, int page_shift, struct mlx4_mr *mr);
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void mlx4_mr_free(struct mlx4_dev *dev, struct mlx4_mr *mr);
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int mlx4_mr_enable(struct mlx4_dev *dev, struct mlx4_mr *mr);
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int mlx4_write_mtt(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
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int start_index, int npages, u64 *page_list);
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int mlx4_buf_write_mtt(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
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struct mlx4_buf *buf);
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int mlx4_db_alloc(struct mlx4_dev *dev, struct mlx4_db *db, int order);
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void mlx4_db_free(struct mlx4_dev *dev, struct mlx4_db *db);
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int mlx4_alloc_hwq_res(struct mlx4_dev *dev, struct mlx4_hwq_resources *wqres,
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int size, int max_direct);
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void mlx4_free_hwq_res(struct mlx4_dev *mdev, struct mlx4_hwq_resources *wqres,
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int size);
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int mlx4_cq_alloc(struct mlx4_dev *dev, int nent, struct mlx4_mtt *mtt,
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struct mlx4_uar *uar, u64 db_rec, struct mlx4_cq *cq,
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unsigned vector, int collapsed);
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void mlx4_cq_free(struct mlx4_dev *dev, struct mlx4_cq *cq);
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int mlx4_qp_reserve_range(struct mlx4_dev *dev, int cnt, int align, int *base);
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void mlx4_qp_release_range(struct mlx4_dev *dev, int base_qpn, int cnt);
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int mlx4_qp_alloc(struct mlx4_dev *dev, int qpn, struct mlx4_qp *qp);
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void mlx4_qp_free(struct mlx4_dev *dev, struct mlx4_qp *qp);
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int mlx4_srq_alloc(struct mlx4_dev *dev, u32 pdn, struct mlx4_mtt *mtt,
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u64 db_rec, struct mlx4_srq *srq);
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void mlx4_srq_free(struct mlx4_dev *dev, struct mlx4_srq *srq);
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int mlx4_srq_arm(struct mlx4_dev *dev, struct mlx4_srq *srq, int limit_watermark);
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int mlx4_srq_query(struct mlx4_dev *dev, struct mlx4_srq *srq, int *limit_watermark);
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int mlx4_INIT_PORT(struct mlx4_dev *dev, int port);
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int mlx4_CLOSE_PORT(struct mlx4_dev *dev, int port);
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int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
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int block_mcast_loopback, enum mlx4_protocol protocol);
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int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
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enum mlx4_protocol protocol);
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int mlx4_multicast_promisc_add(struct mlx4_dev *dev, u32 qpn, u8 port);
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int mlx4_multicast_promisc_remove(struct mlx4_dev *dev, u32 qpn, u8 port);
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int mlx4_unicast_promisc_add(struct mlx4_dev *dev, u32 qpn, u8 port);
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int mlx4_unicast_promisc_remove(struct mlx4_dev *dev, u32 qpn, u8 port);
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int mlx4_SET_MCAST_FLTR(struct mlx4_dev *dev, u8 port, u64 mac, u64 clear, u8 mode);
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int mlx4_register_mac(struct mlx4_dev *dev, u8 port, u64 mac, int *qpn, u8 wrap);
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void mlx4_unregister_mac(struct mlx4_dev *dev, u8 port, int qpn);
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int mlx4_replace_mac(struct mlx4_dev *dev, u8 port, int qpn, u64 new_mac, u8 wrap);
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int mlx4_find_cached_vlan(struct mlx4_dev *dev, u8 port, u16 vid, int *idx);
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int mlx4_register_vlan(struct mlx4_dev *dev, u8 port, u16 vlan, int *index);
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void mlx4_unregister_vlan(struct mlx4_dev *dev, u8 port, int index);
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int mlx4_map_phys_fmr(struct mlx4_dev *dev, struct mlx4_fmr *fmr, u64 *page_list,
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int npages, u64 iova, u32 *lkey, u32 *rkey);
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int mlx4_fmr_alloc(struct mlx4_dev *dev, u32 pd, u32 access, int max_pages,
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int max_maps, u8 page_shift, struct mlx4_fmr *fmr);
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int mlx4_fmr_enable(struct mlx4_dev *dev, struct mlx4_fmr *fmr);
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void mlx4_fmr_unmap(struct mlx4_dev *dev, struct mlx4_fmr *fmr,
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u32 *lkey, u32 *rkey);
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int mlx4_fmr_free(struct mlx4_dev *dev, struct mlx4_fmr *fmr);
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int mlx4_SYNC_TPT(struct mlx4_dev *dev);
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int mlx4_test_interrupts(struct mlx4_dev *dev);
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int mlx4_assign_eq(struct mlx4_dev *dev, char* name , int* vector);
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void mlx4_release_eq(struct mlx4_dev *dev, int vec);
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int mlx4_wol_read(struct mlx4_dev *dev, u64 *config, int port);
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int mlx4_wol_write(struct mlx4_dev *dev, u64 config, int port);
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#endif /* MLX4_DEVICE_H */
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