forked from Minki/linux
db7489e076
Move the __attribute_const__ declarations such that sparse understands
that these apply to the function itself and not to the return type.
This avoids that sparse reports error messages like the following:
drivers/infiniband/core/verbs.c:73:12: error: symbol 'ib_event_msg' redeclared with different type (originally declared at include/rdma/ib_verbs.h:470) - different modifiers
Fixes: 2b1b5b6012 ("IB/core, cma: Nice log-friendly string helpers")
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Sagi Grimberg <sagig@mellanox.com>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
3053 lines
87 KiB
C
3053 lines
87 KiB
C
/*
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* Copyright (c) 2004 Mellanox Technologies Ltd. All rights reserved.
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* Copyright (c) 2004 Infinicon Corporation. All rights reserved.
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* Copyright (c) 2004 Intel Corporation. All rights reserved.
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* Copyright (c) 2004 Topspin Corporation. All rights reserved.
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* Copyright (c) 2004 Voltaire Corporation. All rights reserved.
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* Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
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* Copyright (c) 2005, 2006, 2007 Cisco Systems. 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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#if !defined(IB_VERBS_H)
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#define IB_VERBS_H
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#include <linux/types.h>
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#include <linux/device.h>
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#include <linux/mm.h>
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#include <linux/dma-mapping.h>
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#include <linux/kref.h>
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#include <linux/list.h>
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#include <linux/rwsem.h>
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#include <linux/scatterlist.h>
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#include <linux/workqueue.h>
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#include <linux/socket.h>
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#include <uapi/linux/if_ether.h>
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#include <linux/atomic.h>
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#include <linux/mmu_notifier.h>
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#include <asm/uaccess.h>
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extern struct workqueue_struct *ib_wq;
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union ib_gid {
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u8 raw[16];
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struct {
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__be64 subnet_prefix;
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__be64 interface_id;
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} global;
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};
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extern union ib_gid zgid;
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struct ib_gid_attr {
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struct net_device *ndev;
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};
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enum rdma_node_type {
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/* IB values map to NodeInfo:NodeType. */
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RDMA_NODE_IB_CA = 1,
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RDMA_NODE_IB_SWITCH,
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RDMA_NODE_IB_ROUTER,
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RDMA_NODE_RNIC,
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RDMA_NODE_USNIC,
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RDMA_NODE_USNIC_UDP,
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};
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enum rdma_transport_type {
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RDMA_TRANSPORT_IB,
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RDMA_TRANSPORT_IWARP,
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RDMA_TRANSPORT_USNIC,
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RDMA_TRANSPORT_USNIC_UDP
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};
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enum rdma_protocol_type {
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RDMA_PROTOCOL_IB,
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RDMA_PROTOCOL_IBOE,
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RDMA_PROTOCOL_IWARP,
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RDMA_PROTOCOL_USNIC_UDP
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};
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__attribute_const__ enum rdma_transport_type
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rdma_node_get_transport(enum rdma_node_type node_type);
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enum rdma_link_layer {
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IB_LINK_LAYER_UNSPECIFIED,
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IB_LINK_LAYER_INFINIBAND,
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IB_LINK_LAYER_ETHERNET,
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};
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enum ib_device_cap_flags {
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IB_DEVICE_RESIZE_MAX_WR = 1,
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IB_DEVICE_BAD_PKEY_CNTR = (1<<1),
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IB_DEVICE_BAD_QKEY_CNTR = (1<<2),
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IB_DEVICE_RAW_MULTI = (1<<3),
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IB_DEVICE_AUTO_PATH_MIG = (1<<4),
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IB_DEVICE_CHANGE_PHY_PORT = (1<<5),
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IB_DEVICE_UD_AV_PORT_ENFORCE = (1<<6),
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IB_DEVICE_CURR_QP_STATE_MOD = (1<<7),
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IB_DEVICE_SHUTDOWN_PORT = (1<<8),
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IB_DEVICE_INIT_TYPE = (1<<9),
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IB_DEVICE_PORT_ACTIVE_EVENT = (1<<10),
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IB_DEVICE_SYS_IMAGE_GUID = (1<<11),
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IB_DEVICE_RC_RNR_NAK_GEN = (1<<12),
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IB_DEVICE_SRQ_RESIZE = (1<<13),
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IB_DEVICE_N_NOTIFY_CQ = (1<<14),
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IB_DEVICE_LOCAL_DMA_LKEY = (1<<15),
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IB_DEVICE_RESERVED = (1<<16), /* old SEND_W_INV */
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IB_DEVICE_MEM_WINDOW = (1<<17),
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/*
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* Devices should set IB_DEVICE_UD_IP_SUM if they support
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* insertion of UDP and TCP checksum on outgoing UD IPoIB
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* messages and can verify the validity of checksum for
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* incoming messages. Setting this flag implies that the
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* IPoIB driver may set NETIF_F_IP_CSUM for datagram mode.
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*/
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IB_DEVICE_UD_IP_CSUM = (1<<18),
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IB_DEVICE_UD_TSO = (1<<19),
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IB_DEVICE_XRC = (1<<20),
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IB_DEVICE_MEM_MGT_EXTENSIONS = (1<<21),
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IB_DEVICE_BLOCK_MULTICAST_LOOPBACK = (1<<22),
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IB_DEVICE_MEM_WINDOW_TYPE_2A = (1<<23),
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IB_DEVICE_MEM_WINDOW_TYPE_2B = (1<<24),
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IB_DEVICE_RC_IP_CSUM = (1<<25),
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IB_DEVICE_RAW_IP_CSUM = (1<<26),
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IB_DEVICE_MANAGED_FLOW_STEERING = (1<<29),
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IB_DEVICE_SIGNATURE_HANDOVER = (1<<30),
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IB_DEVICE_ON_DEMAND_PAGING = (1<<31),
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};
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enum ib_signature_prot_cap {
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IB_PROT_T10DIF_TYPE_1 = 1,
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IB_PROT_T10DIF_TYPE_2 = 1 << 1,
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IB_PROT_T10DIF_TYPE_3 = 1 << 2,
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};
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enum ib_signature_guard_cap {
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IB_GUARD_T10DIF_CRC = 1,
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IB_GUARD_T10DIF_CSUM = 1 << 1,
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};
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enum ib_atomic_cap {
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IB_ATOMIC_NONE,
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IB_ATOMIC_HCA,
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IB_ATOMIC_GLOB
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};
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enum ib_odp_general_cap_bits {
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IB_ODP_SUPPORT = 1 << 0,
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};
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enum ib_odp_transport_cap_bits {
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IB_ODP_SUPPORT_SEND = 1 << 0,
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IB_ODP_SUPPORT_RECV = 1 << 1,
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IB_ODP_SUPPORT_WRITE = 1 << 2,
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IB_ODP_SUPPORT_READ = 1 << 3,
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IB_ODP_SUPPORT_ATOMIC = 1 << 4,
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};
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struct ib_odp_caps {
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uint64_t general_caps;
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struct {
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uint32_t rc_odp_caps;
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uint32_t uc_odp_caps;
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uint32_t ud_odp_caps;
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} per_transport_caps;
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};
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enum ib_cq_creation_flags {
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IB_CQ_FLAGS_TIMESTAMP_COMPLETION = 1 << 0,
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};
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struct ib_cq_init_attr {
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unsigned int cqe;
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int comp_vector;
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u32 flags;
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};
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struct ib_device_attr {
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u64 fw_ver;
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__be64 sys_image_guid;
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u64 max_mr_size;
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u64 page_size_cap;
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u32 vendor_id;
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u32 vendor_part_id;
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u32 hw_ver;
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int max_qp;
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int max_qp_wr;
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int device_cap_flags;
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int max_sge;
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int max_sge_rd;
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int max_cq;
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int max_cqe;
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int max_mr;
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int max_pd;
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int max_qp_rd_atom;
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int max_ee_rd_atom;
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int max_res_rd_atom;
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int max_qp_init_rd_atom;
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int max_ee_init_rd_atom;
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enum ib_atomic_cap atomic_cap;
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enum ib_atomic_cap masked_atomic_cap;
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int max_ee;
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int max_rdd;
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int max_mw;
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int max_raw_ipv6_qp;
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int max_raw_ethy_qp;
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int max_mcast_grp;
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int max_mcast_qp_attach;
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int max_total_mcast_qp_attach;
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int max_ah;
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int max_fmr;
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int max_map_per_fmr;
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int max_srq;
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int max_srq_wr;
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int max_srq_sge;
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unsigned int max_fast_reg_page_list_len;
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u16 max_pkeys;
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u8 local_ca_ack_delay;
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int sig_prot_cap;
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int sig_guard_cap;
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struct ib_odp_caps odp_caps;
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uint64_t timestamp_mask;
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uint64_t hca_core_clock; /* in KHZ */
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};
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enum ib_mtu {
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IB_MTU_256 = 1,
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IB_MTU_512 = 2,
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IB_MTU_1024 = 3,
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IB_MTU_2048 = 4,
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IB_MTU_4096 = 5
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};
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static inline int ib_mtu_enum_to_int(enum ib_mtu mtu)
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{
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switch (mtu) {
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case IB_MTU_256: return 256;
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case IB_MTU_512: return 512;
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case IB_MTU_1024: return 1024;
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case IB_MTU_2048: return 2048;
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case IB_MTU_4096: return 4096;
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default: return -1;
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}
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}
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enum ib_port_state {
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IB_PORT_NOP = 0,
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IB_PORT_DOWN = 1,
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IB_PORT_INIT = 2,
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IB_PORT_ARMED = 3,
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IB_PORT_ACTIVE = 4,
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IB_PORT_ACTIVE_DEFER = 5
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};
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enum ib_port_cap_flags {
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IB_PORT_SM = 1 << 1,
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IB_PORT_NOTICE_SUP = 1 << 2,
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IB_PORT_TRAP_SUP = 1 << 3,
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IB_PORT_OPT_IPD_SUP = 1 << 4,
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IB_PORT_AUTO_MIGR_SUP = 1 << 5,
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IB_PORT_SL_MAP_SUP = 1 << 6,
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IB_PORT_MKEY_NVRAM = 1 << 7,
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IB_PORT_PKEY_NVRAM = 1 << 8,
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IB_PORT_LED_INFO_SUP = 1 << 9,
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IB_PORT_SM_DISABLED = 1 << 10,
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IB_PORT_SYS_IMAGE_GUID_SUP = 1 << 11,
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IB_PORT_PKEY_SW_EXT_PORT_TRAP_SUP = 1 << 12,
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IB_PORT_EXTENDED_SPEEDS_SUP = 1 << 14,
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IB_PORT_CM_SUP = 1 << 16,
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IB_PORT_SNMP_TUNNEL_SUP = 1 << 17,
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IB_PORT_REINIT_SUP = 1 << 18,
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IB_PORT_DEVICE_MGMT_SUP = 1 << 19,
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IB_PORT_VENDOR_CLASS_SUP = 1 << 20,
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IB_PORT_DR_NOTICE_SUP = 1 << 21,
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IB_PORT_CAP_MASK_NOTICE_SUP = 1 << 22,
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IB_PORT_BOOT_MGMT_SUP = 1 << 23,
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IB_PORT_LINK_LATENCY_SUP = 1 << 24,
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IB_PORT_CLIENT_REG_SUP = 1 << 25,
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IB_PORT_IP_BASED_GIDS = 1 << 26,
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};
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enum ib_port_width {
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IB_WIDTH_1X = 1,
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IB_WIDTH_4X = 2,
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IB_WIDTH_8X = 4,
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IB_WIDTH_12X = 8
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};
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static inline int ib_width_enum_to_int(enum ib_port_width width)
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{
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switch (width) {
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case IB_WIDTH_1X: return 1;
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case IB_WIDTH_4X: return 4;
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case IB_WIDTH_8X: return 8;
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case IB_WIDTH_12X: return 12;
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default: return -1;
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}
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}
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enum ib_port_speed {
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IB_SPEED_SDR = 1,
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IB_SPEED_DDR = 2,
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IB_SPEED_QDR = 4,
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IB_SPEED_FDR10 = 8,
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IB_SPEED_FDR = 16,
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IB_SPEED_EDR = 32
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};
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struct ib_protocol_stats {
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/* TBD... */
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};
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struct iw_protocol_stats {
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u64 ipInReceives;
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u64 ipInHdrErrors;
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u64 ipInTooBigErrors;
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u64 ipInNoRoutes;
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u64 ipInAddrErrors;
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u64 ipInUnknownProtos;
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u64 ipInTruncatedPkts;
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u64 ipInDiscards;
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u64 ipInDelivers;
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u64 ipOutForwDatagrams;
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u64 ipOutRequests;
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u64 ipOutDiscards;
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u64 ipOutNoRoutes;
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u64 ipReasmTimeout;
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u64 ipReasmReqds;
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u64 ipReasmOKs;
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u64 ipReasmFails;
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u64 ipFragOKs;
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u64 ipFragFails;
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u64 ipFragCreates;
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u64 ipInMcastPkts;
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u64 ipOutMcastPkts;
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u64 ipInBcastPkts;
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u64 ipOutBcastPkts;
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u64 tcpRtoAlgorithm;
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u64 tcpRtoMin;
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u64 tcpRtoMax;
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u64 tcpMaxConn;
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u64 tcpActiveOpens;
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u64 tcpPassiveOpens;
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u64 tcpAttemptFails;
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u64 tcpEstabResets;
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u64 tcpCurrEstab;
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u64 tcpInSegs;
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u64 tcpOutSegs;
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u64 tcpRetransSegs;
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u64 tcpInErrs;
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u64 tcpOutRsts;
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};
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union rdma_protocol_stats {
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struct ib_protocol_stats ib;
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struct iw_protocol_stats iw;
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};
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/* Define bits for the various functionality this port needs to be supported by
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* the core.
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*/
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/* Management 0x00000FFF */
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#define RDMA_CORE_CAP_IB_MAD 0x00000001
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#define RDMA_CORE_CAP_IB_SMI 0x00000002
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#define RDMA_CORE_CAP_IB_CM 0x00000004
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#define RDMA_CORE_CAP_IW_CM 0x00000008
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#define RDMA_CORE_CAP_IB_SA 0x00000010
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#define RDMA_CORE_CAP_OPA_MAD 0x00000020
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/* Address format 0x000FF000 */
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#define RDMA_CORE_CAP_AF_IB 0x00001000
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#define RDMA_CORE_CAP_ETH_AH 0x00002000
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/* Protocol 0xFFF00000 */
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#define RDMA_CORE_CAP_PROT_IB 0x00100000
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#define RDMA_CORE_CAP_PROT_ROCE 0x00200000
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#define RDMA_CORE_CAP_PROT_IWARP 0x00400000
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#define RDMA_CORE_PORT_IBA_IB (RDMA_CORE_CAP_PROT_IB \
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| RDMA_CORE_CAP_IB_MAD \
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| RDMA_CORE_CAP_IB_SMI \
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| RDMA_CORE_CAP_IB_CM \
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| RDMA_CORE_CAP_IB_SA \
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| RDMA_CORE_CAP_AF_IB)
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#define RDMA_CORE_PORT_IBA_ROCE (RDMA_CORE_CAP_PROT_ROCE \
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| RDMA_CORE_CAP_IB_MAD \
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| RDMA_CORE_CAP_IB_CM \
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| RDMA_CORE_CAP_AF_IB \
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| RDMA_CORE_CAP_ETH_AH)
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#define RDMA_CORE_PORT_IWARP (RDMA_CORE_CAP_PROT_IWARP \
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| RDMA_CORE_CAP_IW_CM)
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#define RDMA_CORE_PORT_INTEL_OPA (RDMA_CORE_PORT_IBA_IB \
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| RDMA_CORE_CAP_OPA_MAD)
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|
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struct ib_port_attr {
|
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enum ib_port_state state;
|
|
enum ib_mtu max_mtu;
|
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enum ib_mtu active_mtu;
|
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int gid_tbl_len;
|
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u32 port_cap_flags;
|
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u32 max_msg_sz;
|
|
u32 bad_pkey_cntr;
|
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u32 qkey_viol_cntr;
|
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u16 pkey_tbl_len;
|
|
u16 lid;
|
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u16 sm_lid;
|
|
u8 lmc;
|
|
u8 max_vl_num;
|
|
u8 sm_sl;
|
|
u8 subnet_timeout;
|
|
u8 init_type_reply;
|
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u8 active_width;
|
|
u8 active_speed;
|
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u8 phys_state;
|
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};
|
|
|
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enum ib_device_modify_flags {
|
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IB_DEVICE_MODIFY_SYS_IMAGE_GUID = 1 << 0,
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IB_DEVICE_MODIFY_NODE_DESC = 1 << 1
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};
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|
|
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struct ib_device_modify {
|
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u64 sys_image_guid;
|
|
char node_desc[64];
|
|
};
|
|
|
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enum ib_port_modify_flags {
|
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IB_PORT_SHUTDOWN = 1,
|
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IB_PORT_INIT_TYPE = (1<<2),
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IB_PORT_RESET_QKEY_CNTR = (1<<3)
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};
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|
|
struct ib_port_modify {
|
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u32 set_port_cap_mask;
|
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u32 clr_port_cap_mask;
|
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u8 init_type;
|
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};
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|
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enum ib_event_type {
|
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IB_EVENT_CQ_ERR,
|
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IB_EVENT_QP_FATAL,
|
|
IB_EVENT_QP_REQ_ERR,
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|
IB_EVENT_QP_ACCESS_ERR,
|
|
IB_EVENT_COMM_EST,
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IB_EVENT_SQ_DRAINED,
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|
IB_EVENT_PATH_MIG,
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|
IB_EVENT_PATH_MIG_ERR,
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IB_EVENT_DEVICE_FATAL,
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IB_EVENT_PORT_ACTIVE,
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|
IB_EVENT_PORT_ERR,
|
|
IB_EVENT_LID_CHANGE,
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IB_EVENT_PKEY_CHANGE,
|
|
IB_EVENT_SM_CHANGE,
|
|
IB_EVENT_SRQ_ERR,
|
|
IB_EVENT_SRQ_LIMIT_REACHED,
|
|
IB_EVENT_QP_LAST_WQE_REACHED,
|
|
IB_EVENT_CLIENT_REREGISTER,
|
|
IB_EVENT_GID_CHANGE,
|
|
};
|
|
|
|
const char *__attribute_const__ ib_event_msg(enum ib_event_type event);
|
|
|
|
struct ib_event {
|
|
struct ib_device *device;
|
|
union {
|
|
struct ib_cq *cq;
|
|
struct ib_qp *qp;
|
|
struct ib_srq *srq;
|
|
u8 port_num;
|
|
} element;
|
|
enum ib_event_type event;
|
|
};
|
|
|
|
struct ib_event_handler {
|
|
struct ib_device *device;
|
|
void (*handler)(struct ib_event_handler *, struct ib_event *);
|
|
struct list_head list;
|
|
};
|
|
|
|
#define INIT_IB_EVENT_HANDLER(_ptr, _device, _handler) \
|
|
do { \
|
|
(_ptr)->device = _device; \
|
|
(_ptr)->handler = _handler; \
|
|
INIT_LIST_HEAD(&(_ptr)->list); \
|
|
} while (0)
|
|
|
|
struct ib_global_route {
|
|
union ib_gid dgid;
|
|
u32 flow_label;
|
|
u8 sgid_index;
|
|
u8 hop_limit;
|
|
u8 traffic_class;
|
|
};
|
|
|
|
struct ib_grh {
|
|
__be32 version_tclass_flow;
|
|
__be16 paylen;
|
|
u8 next_hdr;
|
|
u8 hop_limit;
|
|
union ib_gid sgid;
|
|
union ib_gid dgid;
|
|
};
|
|
|
|
enum {
|
|
IB_MULTICAST_QPN = 0xffffff
|
|
};
|
|
|
|
#define IB_LID_PERMISSIVE cpu_to_be16(0xFFFF)
|
|
|
|
enum ib_ah_flags {
|
|
IB_AH_GRH = 1
|
|
};
|
|
|
|
enum ib_rate {
|
|
IB_RATE_PORT_CURRENT = 0,
|
|
IB_RATE_2_5_GBPS = 2,
|
|
IB_RATE_5_GBPS = 5,
|
|
IB_RATE_10_GBPS = 3,
|
|
IB_RATE_20_GBPS = 6,
|
|
IB_RATE_30_GBPS = 4,
|
|
IB_RATE_40_GBPS = 7,
|
|
IB_RATE_60_GBPS = 8,
|
|
IB_RATE_80_GBPS = 9,
|
|
IB_RATE_120_GBPS = 10,
|
|
IB_RATE_14_GBPS = 11,
|
|
IB_RATE_56_GBPS = 12,
|
|
IB_RATE_112_GBPS = 13,
|
|
IB_RATE_168_GBPS = 14,
|
|
IB_RATE_25_GBPS = 15,
|
|
IB_RATE_100_GBPS = 16,
|
|
IB_RATE_200_GBPS = 17,
|
|
IB_RATE_300_GBPS = 18
|
|
};
|
|
|
|
/**
|
|
* ib_rate_to_mult - Convert the IB rate enum to a multiple of the
|
|
* base rate of 2.5 Gbit/sec. For example, IB_RATE_5_GBPS will be
|
|
* converted to 2, since 5 Gbit/sec is 2 * 2.5 Gbit/sec.
|
|
* @rate: rate to convert.
|
|
*/
|
|
__attribute_const__ int ib_rate_to_mult(enum ib_rate rate);
|
|
|
|
/**
|
|
* ib_rate_to_mbps - Convert the IB rate enum to Mbps.
|
|
* For example, IB_RATE_2_5_GBPS will be converted to 2500.
|
|
* @rate: rate to convert.
|
|
*/
|
|
__attribute_const__ int ib_rate_to_mbps(enum ib_rate rate);
|
|
|
|
|
|
/**
|
|
* enum ib_mr_type - memory region type
|
|
* @IB_MR_TYPE_MEM_REG: memory region that is used for
|
|
* normal registration
|
|
* @IB_MR_TYPE_SIGNATURE: memory region that is used for
|
|
* signature operations (data-integrity
|
|
* capable regions)
|
|
*/
|
|
enum ib_mr_type {
|
|
IB_MR_TYPE_MEM_REG,
|
|
IB_MR_TYPE_SIGNATURE,
|
|
};
|
|
|
|
/**
|
|
* Signature types
|
|
* IB_SIG_TYPE_NONE: Unprotected.
|
|
* IB_SIG_TYPE_T10_DIF: Type T10-DIF
|
|
*/
|
|
enum ib_signature_type {
|
|
IB_SIG_TYPE_NONE,
|
|
IB_SIG_TYPE_T10_DIF,
|
|
};
|
|
|
|
/**
|
|
* Signature T10-DIF block-guard types
|
|
* IB_T10DIF_CRC: Corresponds to T10-PI mandated CRC checksum rules.
|
|
* IB_T10DIF_CSUM: Corresponds to IP checksum rules.
|
|
*/
|
|
enum ib_t10_dif_bg_type {
|
|
IB_T10DIF_CRC,
|
|
IB_T10DIF_CSUM
|
|
};
|
|
|
|
/**
|
|
* struct ib_t10_dif_domain - Parameters specific for T10-DIF
|
|
* domain.
|
|
* @bg_type: T10-DIF block guard type (CRC|CSUM)
|
|
* @pi_interval: protection information interval.
|
|
* @bg: seed of guard computation.
|
|
* @app_tag: application tag of guard block
|
|
* @ref_tag: initial guard block reference tag.
|
|
* @ref_remap: Indicate wethear the reftag increments each block
|
|
* @app_escape: Indicate to skip block check if apptag=0xffff
|
|
* @ref_escape: Indicate to skip block check if reftag=0xffffffff
|
|
* @apptag_check_mask: check bitmask of application tag.
|
|
*/
|
|
struct ib_t10_dif_domain {
|
|
enum ib_t10_dif_bg_type bg_type;
|
|
u16 pi_interval;
|
|
u16 bg;
|
|
u16 app_tag;
|
|
u32 ref_tag;
|
|
bool ref_remap;
|
|
bool app_escape;
|
|
bool ref_escape;
|
|
u16 apptag_check_mask;
|
|
};
|
|
|
|
/**
|
|
* struct ib_sig_domain - Parameters for signature domain
|
|
* @sig_type: specific signauture type
|
|
* @sig: union of all signature domain attributes that may
|
|
* be used to set domain layout.
|
|
*/
|
|
struct ib_sig_domain {
|
|
enum ib_signature_type sig_type;
|
|
union {
|
|
struct ib_t10_dif_domain dif;
|
|
} sig;
|
|
};
|
|
|
|
/**
|
|
* struct ib_sig_attrs - Parameters for signature handover operation
|
|
* @check_mask: bitmask for signature byte check (8 bytes)
|
|
* @mem: memory domain layout desciptor.
|
|
* @wire: wire domain layout desciptor.
|
|
*/
|
|
struct ib_sig_attrs {
|
|
u8 check_mask;
|
|
struct ib_sig_domain mem;
|
|
struct ib_sig_domain wire;
|
|
};
|
|
|
|
enum ib_sig_err_type {
|
|
IB_SIG_BAD_GUARD,
|
|
IB_SIG_BAD_REFTAG,
|
|
IB_SIG_BAD_APPTAG,
|
|
};
|
|
|
|
/**
|
|
* struct ib_sig_err - signature error descriptor
|
|
*/
|
|
struct ib_sig_err {
|
|
enum ib_sig_err_type err_type;
|
|
u32 expected;
|
|
u32 actual;
|
|
u64 sig_err_offset;
|
|
u32 key;
|
|
};
|
|
|
|
enum ib_mr_status_check {
|
|
IB_MR_CHECK_SIG_STATUS = 1,
|
|
};
|
|
|
|
/**
|
|
* struct ib_mr_status - Memory region status container
|
|
*
|
|
* @fail_status: Bitmask of MR checks status. For each
|
|
* failed check a corresponding status bit is set.
|
|
* @sig_err: Additional info for IB_MR_CEHCK_SIG_STATUS
|
|
* failure.
|
|
*/
|
|
struct ib_mr_status {
|
|
u32 fail_status;
|
|
struct ib_sig_err sig_err;
|
|
};
|
|
|
|
/**
|
|
* mult_to_ib_rate - Convert a multiple of 2.5 Gbit/sec to an IB rate
|
|
* enum.
|
|
* @mult: multiple to convert.
|
|
*/
|
|
__attribute_const__ enum ib_rate mult_to_ib_rate(int mult);
|
|
|
|
struct ib_ah_attr {
|
|
struct ib_global_route grh;
|
|
u16 dlid;
|
|
u8 sl;
|
|
u8 src_path_bits;
|
|
u8 static_rate;
|
|
u8 ah_flags;
|
|
u8 port_num;
|
|
u8 dmac[ETH_ALEN];
|
|
};
|
|
|
|
enum ib_wc_status {
|
|
IB_WC_SUCCESS,
|
|
IB_WC_LOC_LEN_ERR,
|
|
IB_WC_LOC_QP_OP_ERR,
|
|
IB_WC_LOC_EEC_OP_ERR,
|
|
IB_WC_LOC_PROT_ERR,
|
|
IB_WC_WR_FLUSH_ERR,
|
|
IB_WC_MW_BIND_ERR,
|
|
IB_WC_BAD_RESP_ERR,
|
|
IB_WC_LOC_ACCESS_ERR,
|
|
IB_WC_REM_INV_REQ_ERR,
|
|
IB_WC_REM_ACCESS_ERR,
|
|
IB_WC_REM_OP_ERR,
|
|
IB_WC_RETRY_EXC_ERR,
|
|
IB_WC_RNR_RETRY_EXC_ERR,
|
|
IB_WC_LOC_RDD_VIOL_ERR,
|
|
IB_WC_REM_INV_RD_REQ_ERR,
|
|
IB_WC_REM_ABORT_ERR,
|
|
IB_WC_INV_EECN_ERR,
|
|
IB_WC_INV_EEC_STATE_ERR,
|
|
IB_WC_FATAL_ERR,
|
|
IB_WC_RESP_TIMEOUT_ERR,
|
|
IB_WC_GENERAL_ERR
|
|
};
|
|
|
|
const char *__attribute_const__ ib_wc_status_msg(enum ib_wc_status status);
|
|
|
|
enum ib_wc_opcode {
|
|
IB_WC_SEND,
|
|
IB_WC_RDMA_WRITE,
|
|
IB_WC_RDMA_READ,
|
|
IB_WC_COMP_SWAP,
|
|
IB_WC_FETCH_ADD,
|
|
IB_WC_BIND_MW,
|
|
IB_WC_LSO,
|
|
IB_WC_LOCAL_INV,
|
|
IB_WC_REG_MR,
|
|
IB_WC_MASKED_COMP_SWAP,
|
|
IB_WC_MASKED_FETCH_ADD,
|
|
/*
|
|
* Set value of IB_WC_RECV so consumers can test if a completion is a
|
|
* receive by testing (opcode & IB_WC_RECV).
|
|
*/
|
|
IB_WC_RECV = 1 << 7,
|
|
IB_WC_RECV_RDMA_WITH_IMM
|
|
};
|
|
|
|
enum ib_wc_flags {
|
|
IB_WC_GRH = 1,
|
|
IB_WC_WITH_IMM = (1<<1),
|
|
IB_WC_WITH_INVALIDATE = (1<<2),
|
|
IB_WC_IP_CSUM_OK = (1<<3),
|
|
IB_WC_WITH_SMAC = (1<<4),
|
|
IB_WC_WITH_VLAN = (1<<5),
|
|
};
|
|
|
|
struct ib_wc {
|
|
u64 wr_id;
|
|
enum ib_wc_status status;
|
|
enum ib_wc_opcode opcode;
|
|
u32 vendor_err;
|
|
u32 byte_len;
|
|
struct ib_qp *qp;
|
|
union {
|
|
__be32 imm_data;
|
|
u32 invalidate_rkey;
|
|
} ex;
|
|
u32 src_qp;
|
|
int wc_flags;
|
|
u16 pkey_index;
|
|
u16 slid;
|
|
u8 sl;
|
|
u8 dlid_path_bits;
|
|
u8 port_num; /* valid only for DR SMPs on switches */
|
|
u8 smac[ETH_ALEN];
|
|
u16 vlan_id;
|
|
};
|
|
|
|
enum ib_cq_notify_flags {
|
|
IB_CQ_SOLICITED = 1 << 0,
|
|
IB_CQ_NEXT_COMP = 1 << 1,
|
|
IB_CQ_SOLICITED_MASK = IB_CQ_SOLICITED | IB_CQ_NEXT_COMP,
|
|
IB_CQ_REPORT_MISSED_EVENTS = 1 << 2,
|
|
};
|
|
|
|
enum ib_srq_type {
|
|
IB_SRQT_BASIC,
|
|
IB_SRQT_XRC
|
|
};
|
|
|
|
enum ib_srq_attr_mask {
|
|
IB_SRQ_MAX_WR = 1 << 0,
|
|
IB_SRQ_LIMIT = 1 << 1,
|
|
};
|
|
|
|
struct ib_srq_attr {
|
|
u32 max_wr;
|
|
u32 max_sge;
|
|
u32 srq_limit;
|
|
};
|
|
|
|
struct ib_srq_init_attr {
|
|
void (*event_handler)(struct ib_event *, void *);
|
|
void *srq_context;
|
|
struct ib_srq_attr attr;
|
|
enum ib_srq_type srq_type;
|
|
|
|
union {
|
|
struct {
|
|
struct ib_xrcd *xrcd;
|
|
struct ib_cq *cq;
|
|
} xrc;
|
|
} ext;
|
|
};
|
|
|
|
struct ib_qp_cap {
|
|
u32 max_send_wr;
|
|
u32 max_recv_wr;
|
|
u32 max_send_sge;
|
|
u32 max_recv_sge;
|
|
u32 max_inline_data;
|
|
};
|
|
|
|
enum ib_sig_type {
|
|
IB_SIGNAL_ALL_WR,
|
|
IB_SIGNAL_REQ_WR
|
|
};
|
|
|
|
enum ib_qp_type {
|
|
/*
|
|
* IB_QPT_SMI and IB_QPT_GSI have to be the first two entries
|
|
* here (and in that order) since the MAD layer uses them as
|
|
* indices into a 2-entry table.
|
|
*/
|
|
IB_QPT_SMI,
|
|
IB_QPT_GSI,
|
|
|
|
IB_QPT_RC,
|
|
IB_QPT_UC,
|
|
IB_QPT_UD,
|
|
IB_QPT_RAW_IPV6,
|
|
IB_QPT_RAW_ETHERTYPE,
|
|
IB_QPT_RAW_PACKET = 8,
|
|
IB_QPT_XRC_INI = 9,
|
|
IB_QPT_XRC_TGT,
|
|
IB_QPT_MAX,
|
|
/* Reserve a range for qp types internal to the low level driver.
|
|
* These qp types will not be visible at the IB core layer, so the
|
|
* IB_QPT_MAX usages should not be affected in the core layer
|
|
*/
|
|
IB_QPT_RESERVED1 = 0x1000,
|
|
IB_QPT_RESERVED2,
|
|
IB_QPT_RESERVED3,
|
|
IB_QPT_RESERVED4,
|
|
IB_QPT_RESERVED5,
|
|
IB_QPT_RESERVED6,
|
|
IB_QPT_RESERVED7,
|
|
IB_QPT_RESERVED8,
|
|
IB_QPT_RESERVED9,
|
|
IB_QPT_RESERVED10,
|
|
};
|
|
|
|
enum ib_qp_create_flags {
|
|
IB_QP_CREATE_IPOIB_UD_LSO = 1 << 0,
|
|
IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK = 1 << 1,
|
|
IB_QP_CREATE_NETIF_QP = 1 << 5,
|
|
IB_QP_CREATE_SIGNATURE_EN = 1 << 6,
|
|
IB_QP_CREATE_USE_GFP_NOIO = 1 << 7,
|
|
/* reserve bits 26-31 for low level drivers' internal use */
|
|
IB_QP_CREATE_RESERVED_START = 1 << 26,
|
|
IB_QP_CREATE_RESERVED_END = 1 << 31,
|
|
};
|
|
|
|
/*
|
|
* Note: users may not call ib_close_qp or ib_destroy_qp from the event_handler
|
|
* callback to destroy the passed in QP.
|
|
*/
|
|
|
|
struct ib_qp_init_attr {
|
|
void (*event_handler)(struct ib_event *, void *);
|
|
void *qp_context;
|
|
struct ib_cq *send_cq;
|
|
struct ib_cq *recv_cq;
|
|
struct ib_srq *srq;
|
|
struct ib_xrcd *xrcd; /* XRC TGT QPs only */
|
|
struct ib_qp_cap cap;
|
|
enum ib_sig_type sq_sig_type;
|
|
enum ib_qp_type qp_type;
|
|
enum ib_qp_create_flags create_flags;
|
|
u8 port_num; /* special QP types only */
|
|
};
|
|
|
|
struct ib_qp_open_attr {
|
|
void (*event_handler)(struct ib_event *, void *);
|
|
void *qp_context;
|
|
u32 qp_num;
|
|
enum ib_qp_type qp_type;
|
|
};
|
|
|
|
enum ib_rnr_timeout {
|
|
IB_RNR_TIMER_655_36 = 0,
|
|
IB_RNR_TIMER_000_01 = 1,
|
|
IB_RNR_TIMER_000_02 = 2,
|
|
IB_RNR_TIMER_000_03 = 3,
|
|
IB_RNR_TIMER_000_04 = 4,
|
|
IB_RNR_TIMER_000_06 = 5,
|
|
IB_RNR_TIMER_000_08 = 6,
|
|
IB_RNR_TIMER_000_12 = 7,
|
|
IB_RNR_TIMER_000_16 = 8,
|
|
IB_RNR_TIMER_000_24 = 9,
|
|
IB_RNR_TIMER_000_32 = 10,
|
|
IB_RNR_TIMER_000_48 = 11,
|
|
IB_RNR_TIMER_000_64 = 12,
|
|
IB_RNR_TIMER_000_96 = 13,
|
|
IB_RNR_TIMER_001_28 = 14,
|
|
IB_RNR_TIMER_001_92 = 15,
|
|
IB_RNR_TIMER_002_56 = 16,
|
|
IB_RNR_TIMER_003_84 = 17,
|
|
IB_RNR_TIMER_005_12 = 18,
|
|
IB_RNR_TIMER_007_68 = 19,
|
|
IB_RNR_TIMER_010_24 = 20,
|
|
IB_RNR_TIMER_015_36 = 21,
|
|
IB_RNR_TIMER_020_48 = 22,
|
|
IB_RNR_TIMER_030_72 = 23,
|
|
IB_RNR_TIMER_040_96 = 24,
|
|
IB_RNR_TIMER_061_44 = 25,
|
|
IB_RNR_TIMER_081_92 = 26,
|
|
IB_RNR_TIMER_122_88 = 27,
|
|
IB_RNR_TIMER_163_84 = 28,
|
|
IB_RNR_TIMER_245_76 = 29,
|
|
IB_RNR_TIMER_327_68 = 30,
|
|
IB_RNR_TIMER_491_52 = 31
|
|
};
|
|
|
|
enum ib_qp_attr_mask {
|
|
IB_QP_STATE = 1,
|
|
IB_QP_CUR_STATE = (1<<1),
|
|
IB_QP_EN_SQD_ASYNC_NOTIFY = (1<<2),
|
|
IB_QP_ACCESS_FLAGS = (1<<3),
|
|
IB_QP_PKEY_INDEX = (1<<4),
|
|
IB_QP_PORT = (1<<5),
|
|
IB_QP_QKEY = (1<<6),
|
|
IB_QP_AV = (1<<7),
|
|
IB_QP_PATH_MTU = (1<<8),
|
|
IB_QP_TIMEOUT = (1<<9),
|
|
IB_QP_RETRY_CNT = (1<<10),
|
|
IB_QP_RNR_RETRY = (1<<11),
|
|
IB_QP_RQ_PSN = (1<<12),
|
|
IB_QP_MAX_QP_RD_ATOMIC = (1<<13),
|
|
IB_QP_ALT_PATH = (1<<14),
|
|
IB_QP_MIN_RNR_TIMER = (1<<15),
|
|
IB_QP_SQ_PSN = (1<<16),
|
|
IB_QP_MAX_DEST_RD_ATOMIC = (1<<17),
|
|
IB_QP_PATH_MIG_STATE = (1<<18),
|
|
IB_QP_CAP = (1<<19),
|
|
IB_QP_DEST_QPN = (1<<20),
|
|
IB_QP_RESERVED1 = (1<<21),
|
|
IB_QP_RESERVED2 = (1<<22),
|
|
IB_QP_RESERVED3 = (1<<23),
|
|
IB_QP_RESERVED4 = (1<<24),
|
|
};
|
|
|
|
enum ib_qp_state {
|
|
IB_QPS_RESET,
|
|
IB_QPS_INIT,
|
|
IB_QPS_RTR,
|
|
IB_QPS_RTS,
|
|
IB_QPS_SQD,
|
|
IB_QPS_SQE,
|
|
IB_QPS_ERR
|
|
};
|
|
|
|
enum ib_mig_state {
|
|
IB_MIG_MIGRATED,
|
|
IB_MIG_REARM,
|
|
IB_MIG_ARMED
|
|
};
|
|
|
|
enum ib_mw_type {
|
|
IB_MW_TYPE_1 = 1,
|
|
IB_MW_TYPE_2 = 2
|
|
};
|
|
|
|
struct ib_qp_attr {
|
|
enum ib_qp_state qp_state;
|
|
enum ib_qp_state cur_qp_state;
|
|
enum ib_mtu path_mtu;
|
|
enum ib_mig_state path_mig_state;
|
|
u32 qkey;
|
|
u32 rq_psn;
|
|
u32 sq_psn;
|
|
u32 dest_qp_num;
|
|
int qp_access_flags;
|
|
struct ib_qp_cap cap;
|
|
struct ib_ah_attr ah_attr;
|
|
struct ib_ah_attr alt_ah_attr;
|
|
u16 pkey_index;
|
|
u16 alt_pkey_index;
|
|
u8 en_sqd_async_notify;
|
|
u8 sq_draining;
|
|
u8 max_rd_atomic;
|
|
u8 max_dest_rd_atomic;
|
|
u8 min_rnr_timer;
|
|
u8 port_num;
|
|
u8 timeout;
|
|
u8 retry_cnt;
|
|
u8 rnr_retry;
|
|
u8 alt_port_num;
|
|
u8 alt_timeout;
|
|
};
|
|
|
|
enum ib_wr_opcode {
|
|
IB_WR_RDMA_WRITE,
|
|
IB_WR_RDMA_WRITE_WITH_IMM,
|
|
IB_WR_SEND,
|
|
IB_WR_SEND_WITH_IMM,
|
|
IB_WR_RDMA_READ,
|
|
IB_WR_ATOMIC_CMP_AND_SWP,
|
|
IB_WR_ATOMIC_FETCH_AND_ADD,
|
|
IB_WR_LSO,
|
|
IB_WR_SEND_WITH_INV,
|
|
IB_WR_RDMA_READ_WITH_INV,
|
|
IB_WR_LOCAL_INV,
|
|
IB_WR_REG_MR,
|
|
IB_WR_MASKED_ATOMIC_CMP_AND_SWP,
|
|
IB_WR_MASKED_ATOMIC_FETCH_AND_ADD,
|
|
IB_WR_BIND_MW,
|
|
IB_WR_REG_SIG_MR,
|
|
/* reserve values for low level drivers' internal use.
|
|
* These values will not be used at all in the ib core layer.
|
|
*/
|
|
IB_WR_RESERVED1 = 0xf0,
|
|
IB_WR_RESERVED2,
|
|
IB_WR_RESERVED3,
|
|
IB_WR_RESERVED4,
|
|
IB_WR_RESERVED5,
|
|
IB_WR_RESERVED6,
|
|
IB_WR_RESERVED7,
|
|
IB_WR_RESERVED8,
|
|
IB_WR_RESERVED9,
|
|
IB_WR_RESERVED10,
|
|
};
|
|
|
|
enum ib_send_flags {
|
|
IB_SEND_FENCE = 1,
|
|
IB_SEND_SIGNALED = (1<<1),
|
|
IB_SEND_SOLICITED = (1<<2),
|
|
IB_SEND_INLINE = (1<<3),
|
|
IB_SEND_IP_CSUM = (1<<4),
|
|
|
|
/* reserve bits 26-31 for low level drivers' internal use */
|
|
IB_SEND_RESERVED_START = (1 << 26),
|
|
IB_SEND_RESERVED_END = (1 << 31),
|
|
};
|
|
|
|
struct ib_sge {
|
|
u64 addr;
|
|
u32 length;
|
|
u32 lkey;
|
|
};
|
|
|
|
/**
|
|
* struct ib_mw_bind_info - Parameters for a memory window bind operation.
|
|
* @mr: A memory region to bind the memory window to.
|
|
* @addr: The address where the memory window should begin.
|
|
* @length: The length of the memory window, in bytes.
|
|
* @mw_access_flags: Access flags from enum ib_access_flags for the window.
|
|
*
|
|
* This struct contains the shared parameters for type 1 and type 2
|
|
* memory window bind operations.
|
|
*/
|
|
struct ib_mw_bind_info {
|
|
struct ib_mr *mr;
|
|
u64 addr;
|
|
u64 length;
|
|
int mw_access_flags;
|
|
};
|
|
|
|
struct ib_send_wr {
|
|
struct ib_send_wr *next;
|
|
u64 wr_id;
|
|
struct ib_sge *sg_list;
|
|
int num_sge;
|
|
enum ib_wr_opcode opcode;
|
|
int send_flags;
|
|
union {
|
|
__be32 imm_data;
|
|
u32 invalidate_rkey;
|
|
} ex;
|
|
};
|
|
|
|
struct ib_rdma_wr {
|
|
struct ib_send_wr wr;
|
|
u64 remote_addr;
|
|
u32 rkey;
|
|
};
|
|
|
|
static inline struct ib_rdma_wr *rdma_wr(struct ib_send_wr *wr)
|
|
{
|
|
return container_of(wr, struct ib_rdma_wr, wr);
|
|
}
|
|
|
|
struct ib_atomic_wr {
|
|
struct ib_send_wr wr;
|
|
u64 remote_addr;
|
|
u64 compare_add;
|
|
u64 swap;
|
|
u64 compare_add_mask;
|
|
u64 swap_mask;
|
|
u32 rkey;
|
|
};
|
|
|
|
static inline struct ib_atomic_wr *atomic_wr(struct ib_send_wr *wr)
|
|
{
|
|
return container_of(wr, struct ib_atomic_wr, wr);
|
|
}
|
|
|
|
struct ib_ud_wr {
|
|
struct ib_send_wr wr;
|
|
struct ib_ah *ah;
|
|
void *header;
|
|
int hlen;
|
|
int mss;
|
|
u32 remote_qpn;
|
|
u32 remote_qkey;
|
|
u16 pkey_index; /* valid for GSI only */
|
|
u8 port_num; /* valid for DR SMPs on switch only */
|
|
};
|
|
|
|
static inline struct ib_ud_wr *ud_wr(struct ib_send_wr *wr)
|
|
{
|
|
return container_of(wr, struct ib_ud_wr, wr);
|
|
}
|
|
|
|
struct ib_reg_wr {
|
|
struct ib_send_wr wr;
|
|
struct ib_mr *mr;
|
|
u32 key;
|
|
int access;
|
|
};
|
|
|
|
static inline struct ib_reg_wr *reg_wr(struct ib_send_wr *wr)
|
|
{
|
|
return container_of(wr, struct ib_reg_wr, wr);
|
|
}
|
|
|
|
struct ib_bind_mw_wr {
|
|
struct ib_send_wr wr;
|
|
struct ib_mw *mw;
|
|
/* The new rkey for the memory window. */
|
|
u32 rkey;
|
|
struct ib_mw_bind_info bind_info;
|
|
};
|
|
|
|
static inline struct ib_bind_mw_wr *bind_mw_wr(struct ib_send_wr *wr)
|
|
{
|
|
return container_of(wr, struct ib_bind_mw_wr, wr);
|
|
}
|
|
|
|
struct ib_sig_handover_wr {
|
|
struct ib_send_wr wr;
|
|
struct ib_sig_attrs *sig_attrs;
|
|
struct ib_mr *sig_mr;
|
|
int access_flags;
|
|
struct ib_sge *prot;
|
|
};
|
|
|
|
static inline struct ib_sig_handover_wr *sig_handover_wr(struct ib_send_wr *wr)
|
|
{
|
|
return container_of(wr, struct ib_sig_handover_wr, wr);
|
|
}
|
|
|
|
struct ib_recv_wr {
|
|
struct ib_recv_wr *next;
|
|
u64 wr_id;
|
|
struct ib_sge *sg_list;
|
|
int num_sge;
|
|
};
|
|
|
|
enum ib_access_flags {
|
|
IB_ACCESS_LOCAL_WRITE = 1,
|
|
IB_ACCESS_REMOTE_WRITE = (1<<1),
|
|
IB_ACCESS_REMOTE_READ = (1<<2),
|
|
IB_ACCESS_REMOTE_ATOMIC = (1<<3),
|
|
IB_ACCESS_MW_BIND = (1<<4),
|
|
IB_ZERO_BASED = (1<<5),
|
|
IB_ACCESS_ON_DEMAND = (1<<6),
|
|
};
|
|
|
|
struct ib_phys_buf {
|
|
u64 addr;
|
|
u64 size;
|
|
};
|
|
|
|
struct ib_mr_attr {
|
|
struct ib_pd *pd;
|
|
u64 device_virt_addr;
|
|
u64 size;
|
|
int mr_access_flags;
|
|
u32 lkey;
|
|
u32 rkey;
|
|
};
|
|
|
|
enum ib_mr_rereg_flags {
|
|
IB_MR_REREG_TRANS = 1,
|
|
IB_MR_REREG_PD = (1<<1),
|
|
IB_MR_REREG_ACCESS = (1<<2),
|
|
IB_MR_REREG_SUPPORTED = ((IB_MR_REREG_ACCESS << 1) - 1)
|
|
};
|
|
|
|
/**
|
|
* struct ib_mw_bind - Parameters for a type 1 memory window bind operation.
|
|
* @wr_id: Work request id.
|
|
* @send_flags: Flags from ib_send_flags enum.
|
|
* @bind_info: More parameters of the bind operation.
|
|
*/
|
|
struct ib_mw_bind {
|
|
u64 wr_id;
|
|
int send_flags;
|
|
struct ib_mw_bind_info bind_info;
|
|
};
|
|
|
|
struct ib_fmr_attr {
|
|
int max_pages;
|
|
int max_maps;
|
|
u8 page_shift;
|
|
};
|
|
|
|
struct ib_umem;
|
|
|
|
struct ib_ucontext {
|
|
struct ib_device *device;
|
|
struct list_head pd_list;
|
|
struct list_head mr_list;
|
|
struct list_head mw_list;
|
|
struct list_head cq_list;
|
|
struct list_head qp_list;
|
|
struct list_head srq_list;
|
|
struct list_head ah_list;
|
|
struct list_head xrcd_list;
|
|
struct list_head rule_list;
|
|
int closing;
|
|
|
|
struct pid *tgid;
|
|
#ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
|
|
struct rb_root umem_tree;
|
|
/*
|
|
* Protects .umem_rbroot and tree, as well as odp_mrs_count and
|
|
* mmu notifiers registration.
|
|
*/
|
|
struct rw_semaphore umem_rwsem;
|
|
void (*invalidate_range)(struct ib_umem *umem,
|
|
unsigned long start, unsigned long end);
|
|
|
|
struct mmu_notifier mn;
|
|
atomic_t notifier_count;
|
|
/* A list of umems that don't have private mmu notifier counters yet. */
|
|
struct list_head no_private_counters;
|
|
int odp_mrs_count;
|
|
#endif
|
|
};
|
|
|
|
struct ib_uobject {
|
|
u64 user_handle; /* handle given to us by userspace */
|
|
struct ib_ucontext *context; /* associated user context */
|
|
void *object; /* containing object */
|
|
struct list_head list; /* link to context's list */
|
|
int id; /* index into kernel idr */
|
|
struct kref ref;
|
|
struct rw_semaphore mutex; /* protects .live */
|
|
int live;
|
|
};
|
|
|
|
struct ib_udata {
|
|
const void __user *inbuf;
|
|
void __user *outbuf;
|
|
size_t inlen;
|
|
size_t outlen;
|
|
};
|
|
|
|
struct ib_pd {
|
|
u32 local_dma_lkey;
|
|
struct ib_device *device;
|
|
struct ib_uobject *uobject;
|
|
atomic_t usecnt; /* count all resources */
|
|
struct ib_mr *local_mr;
|
|
};
|
|
|
|
struct ib_xrcd {
|
|
struct ib_device *device;
|
|
atomic_t usecnt; /* count all exposed resources */
|
|
struct inode *inode;
|
|
|
|
struct mutex tgt_qp_mutex;
|
|
struct list_head tgt_qp_list;
|
|
};
|
|
|
|
struct ib_ah {
|
|
struct ib_device *device;
|
|
struct ib_pd *pd;
|
|
struct ib_uobject *uobject;
|
|
};
|
|
|
|
typedef void (*ib_comp_handler)(struct ib_cq *cq, void *cq_context);
|
|
|
|
struct ib_cq {
|
|
struct ib_device *device;
|
|
struct ib_uobject *uobject;
|
|
ib_comp_handler comp_handler;
|
|
void (*event_handler)(struct ib_event *, void *);
|
|
void *cq_context;
|
|
int cqe;
|
|
atomic_t usecnt; /* count number of work queues */
|
|
};
|
|
|
|
struct ib_srq {
|
|
struct ib_device *device;
|
|
struct ib_pd *pd;
|
|
struct ib_uobject *uobject;
|
|
void (*event_handler)(struct ib_event *, void *);
|
|
void *srq_context;
|
|
enum ib_srq_type srq_type;
|
|
atomic_t usecnt;
|
|
|
|
union {
|
|
struct {
|
|
struct ib_xrcd *xrcd;
|
|
struct ib_cq *cq;
|
|
u32 srq_num;
|
|
} xrc;
|
|
} ext;
|
|
};
|
|
|
|
struct ib_qp {
|
|
struct ib_device *device;
|
|
struct ib_pd *pd;
|
|
struct ib_cq *send_cq;
|
|
struct ib_cq *recv_cq;
|
|
struct ib_srq *srq;
|
|
struct ib_xrcd *xrcd; /* XRC TGT QPs only */
|
|
struct list_head xrcd_list;
|
|
/* count times opened, mcast attaches, flow attaches */
|
|
atomic_t usecnt;
|
|
struct list_head open_list;
|
|
struct ib_qp *real_qp;
|
|
struct ib_uobject *uobject;
|
|
void (*event_handler)(struct ib_event *, void *);
|
|
void *qp_context;
|
|
u32 qp_num;
|
|
enum ib_qp_type qp_type;
|
|
};
|
|
|
|
struct ib_mr {
|
|
struct ib_device *device;
|
|
struct ib_pd *pd;
|
|
struct ib_uobject *uobject;
|
|
u32 lkey;
|
|
u32 rkey;
|
|
u64 iova;
|
|
u32 length;
|
|
unsigned int page_size;
|
|
atomic_t usecnt; /* count number of MWs */
|
|
};
|
|
|
|
struct ib_mw {
|
|
struct ib_device *device;
|
|
struct ib_pd *pd;
|
|
struct ib_uobject *uobject;
|
|
u32 rkey;
|
|
enum ib_mw_type type;
|
|
};
|
|
|
|
struct ib_fmr {
|
|
struct ib_device *device;
|
|
struct ib_pd *pd;
|
|
struct list_head list;
|
|
u32 lkey;
|
|
u32 rkey;
|
|
};
|
|
|
|
/* Supported steering options */
|
|
enum ib_flow_attr_type {
|
|
/* steering according to rule specifications */
|
|
IB_FLOW_ATTR_NORMAL = 0x0,
|
|
/* default unicast and multicast rule -
|
|
* receive all Eth traffic which isn't steered to any QP
|
|
*/
|
|
IB_FLOW_ATTR_ALL_DEFAULT = 0x1,
|
|
/* default multicast rule -
|
|
* receive all Eth multicast traffic which isn't steered to any QP
|
|
*/
|
|
IB_FLOW_ATTR_MC_DEFAULT = 0x2,
|
|
/* sniffer rule - receive all port traffic */
|
|
IB_FLOW_ATTR_SNIFFER = 0x3
|
|
};
|
|
|
|
/* Supported steering header types */
|
|
enum ib_flow_spec_type {
|
|
/* L2 headers*/
|
|
IB_FLOW_SPEC_ETH = 0x20,
|
|
IB_FLOW_SPEC_IB = 0x22,
|
|
/* L3 header*/
|
|
IB_FLOW_SPEC_IPV4 = 0x30,
|
|
/* L4 headers*/
|
|
IB_FLOW_SPEC_TCP = 0x40,
|
|
IB_FLOW_SPEC_UDP = 0x41
|
|
};
|
|
#define IB_FLOW_SPEC_LAYER_MASK 0xF0
|
|
#define IB_FLOW_SPEC_SUPPORT_LAYERS 4
|
|
|
|
/* Flow steering rule priority is set according to it's domain.
|
|
* Lower domain value means higher priority.
|
|
*/
|
|
enum ib_flow_domain {
|
|
IB_FLOW_DOMAIN_USER,
|
|
IB_FLOW_DOMAIN_ETHTOOL,
|
|
IB_FLOW_DOMAIN_RFS,
|
|
IB_FLOW_DOMAIN_NIC,
|
|
IB_FLOW_DOMAIN_NUM /* Must be last */
|
|
};
|
|
|
|
struct ib_flow_eth_filter {
|
|
u8 dst_mac[6];
|
|
u8 src_mac[6];
|
|
__be16 ether_type;
|
|
__be16 vlan_tag;
|
|
};
|
|
|
|
struct ib_flow_spec_eth {
|
|
enum ib_flow_spec_type type;
|
|
u16 size;
|
|
struct ib_flow_eth_filter val;
|
|
struct ib_flow_eth_filter mask;
|
|
};
|
|
|
|
struct ib_flow_ib_filter {
|
|
__be16 dlid;
|
|
__u8 sl;
|
|
};
|
|
|
|
struct ib_flow_spec_ib {
|
|
enum ib_flow_spec_type type;
|
|
u16 size;
|
|
struct ib_flow_ib_filter val;
|
|
struct ib_flow_ib_filter mask;
|
|
};
|
|
|
|
struct ib_flow_ipv4_filter {
|
|
__be32 src_ip;
|
|
__be32 dst_ip;
|
|
};
|
|
|
|
struct ib_flow_spec_ipv4 {
|
|
enum ib_flow_spec_type type;
|
|
u16 size;
|
|
struct ib_flow_ipv4_filter val;
|
|
struct ib_flow_ipv4_filter mask;
|
|
};
|
|
|
|
struct ib_flow_tcp_udp_filter {
|
|
__be16 dst_port;
|
|
__be16 src_port;
|
|
};
|
|
|
|
struct ib_flow_spec_tcp_udp {
|
|
enum ib_flow_spec_type type;
|
|
u16 size;
|
|
struct ib_flow_tcp_udp_filter val;
|
|
struct ib_flow_tcp_udp_filter mask;
|
|
};
|
|
|
|
union ib_flow_spec {
|
|
struct {
|
|
enum ib_flow_spec_type type;
|
|
u16 size;
|
|
};
|
|
struct ib_flow_spec_eth eth;
|
|
struct ib_flow_spec_ib ib;
|
|
struct ib_flow_spec_ipv4 ipv4;
|
|
struct ib_flow_spec_tcp_udp tcp_udp;
|
|
};
|
|
|
|
struct ib_flow_attr {
|
|
enum ib_flow_attr_type type;
|
|
u16 size;
|
|
u16 priority;
|
|
u32 flags;
|
|
u8 num_of_specs;
|
|
u8 port;
|
|
/* Following are the optional layers according to user request
|
|
* struct ib_flow_spec_xxx
|
|
* struct ib_flow_spec_yyy
|
|
*/
|
|
};
|
|
|
|
struct ib_flow {
|
|
struct ib_qp *qp;
|
|
struct ib_uobject *uobject;
|
|
};
|
|
|
|
struct ib_mad_hdr;
|
|
struct ib_grh;
|
|
|
|
enum ib_process_mad_flags {
|
|
IB_MAD_IGNORE_MKEY = 1,
|
|
IB_MAD_IGNORE_BKEY = 2,
|
|
IB_MAD_IGNORE_ALL = IB_MAD_IGNORE_MKEY | IB_MAD_IGNORE_BKEY
|
|
};
|
|
|
|
enum ib_mad_result {
|
|
IB_MAD_RESULT_FAILURE = 0, /* (!SUCCESS is the important flag) */
|
|
IB_MAD_RESULT_SUCCESS = 1 << 0, /* MAD was successfully processed */
|
|
IB_MAD_RESULT_REPLY = 1 << 1, /* Reply packet needs to be sent */
|
|
IB_MAD_RESULT_CONSUMED = 1 << 2 /* Packet consumed: stop processing */
|
|
};
|
|
|
|
#define IB_DEVICE_NAME_MAX 64
|
|
|
|
struct ib_cache {
|
|
rwlock_t lock;
|
|
struct ib_event_handler event_handler;
|
|
struct ib_pkey_cache **pkey_cache;
|
|
struct ib_gid_table **gid_cache;
|
|
u8 *lmc_cache;
|
|
};
|
|
|
|
struct ib_dma_mapping_ops {
|
|
int (*mapping_error)(struct ib_device *dev,
|
|
u64 dma_addr);
|
|
u64 (*map_single)(struct ib_device *dev,
|
|
void *ptr, size_t size,
|
|
enum dma_data_direction direction);
|
|
void (*unmap_single)(struct ib_device *dev,
|
|
u64 addr, size_t size,
|
|
enum dma_data_direction direction);
|
|
u64 (*map_page)(struct ib_device *dev,
|
|
struct page *page, unsigned long offset,
|
|
size_t size,
|
|
enum dma_data_direction direction);
|
|
void (*unmap_page)(struct ib_device *dev,
|
|
u64 addr, size_t size,
|
|
enum dma_data_direction direction);
|
|
int (*map_sg)(struct ib_device *dev,
|
|
struct scatterlist *sg, int nents,
|
|
enum dma_data_direction direction);
|
|
void (*unmap_sg)(struct ib_device *dev,
|
|
struct scatterlist *sg, int nents,
|
|
enum dma_data_direction direction);
|
|
void (*sync_single_for_cpu)(struct ib_device *dev,
|
|
u64 dma_handle,
|
|
size_t size,
|
|
enum dma_data_direction dir);
|
|
void (*sync_single_for_device)(struct ib_device *dev,
|
|
u64 dma_handle,
|
|
size_t size,
|
|
enum dma_data_direction dir);
|
|
void *(*alloc_coherent)(struct ib_device *dev,
|
|
size_t size,
|
|
u64 *dma_handle,
|
|
gfp_t flag);
|
|
void (*free_coherent)(struct ib_device *dev,
|
|
size_t size, void *cpu_addr,
|
|
u64 dma_handle);
|
|
};
|
|
|
|
struct iw_cm_verbs;
|
|
|
|
struct ib_port_immutable {
|
|
int pkey_tbl_len;
|
|
int gid_tbl_len;
|
|
u32 core_cap_flags;
|
|
u32 max_mad_size;
|
|
};
|
|
|
|
struct ib_device {
|
|
struct device *dma_device;
|
|
|
|
char name[IB_DEVICE_NAME_MAX];
|
|
|
|
struct list_head event_handler_list;
|
|
spinlock_t event_handler_lock;
|
|
|
|
spinlock_t client_data_lock;
|
|
struct list_head core_list;
|
|
/* Access to the client_data_list is protected by the client_data_lock
|
|
* spinlock and the lists_rwsem read-write semaphore */
|
|
struct list_head client_data_list;
|
|
|
|
struct ib_cache cache;
|
|
/**
|
|
* port_immutable is indexed by port number
|
|
*/
|
|
struct ib_port_immutable *port_immutable;
|
|
|
|
int num_comp_vectors;
|
|
|
|
struct iw_cm_verbs *iwcm;
|
|
|
|
int (*get_protocol_stats)(struct ib_device *device,
|
|
union rdma_protocol_stats *stats);
|
|
int (*query_device)(struct ib_device *device,
|
|
struct ib_device_attr *device_attr,
|
|
struct ib_udata *udata);
|
|
int (*query_port)(struct ib_device *device,
|
|
u8 port_num,
|
|
struct ib_port_attr *port_attr);
|
|
enum rdma_link_layer (*get_link_layer)(struct ib_device *device,
|
|
u8 port_num);
|
|
/* When calling get_netdev, the HW vendor's driver should return the
|
|
* net device of device @device at port @port_num or NULL if such
|
|
* a net device doesn't exist. The vendor driver should call dev_hold
|
|
* on this net device. The HW vendor's device driver must guarantee
|
|
* that this function returns NULL before the net device reaches
|
|
* NETDEV_UNREGISTER_FINAL state.
|
|
*/
|
|
struct net_device *(*get_netdev)(struct ib_device *device,
|
|
u8 port_num);
|
|
int (*query_gid)(struct ib_device *device,
|
|
u8 port_num, int index,
|
|
union ib_gid *gid);
|
|
/* When calling add_gid, the HW vendor's driver should
|
|
* add the gid of device @device at gid index @index of
|
|
* port @port_num to be @gid. Meta-info of that gid (for example,
|
|
* the network device related to this gid is available
|
|
* at @attr. @context allows the HW vendor driver to store extra
|
|
* information together with a GID entry. The HW vendor may allocate
|
|
* memory to contain this information and store it in @context when a
|
|
* new GID entry is written to. Params are consistent until the next
|
|
* call of add_gid or delete_gid. The function should return 0 on
|
|
* success or error otherwise. The function could be called
|
|
* concurrently for different ports. This function is only called
|
|
* when roce_gid_table is used.
|
|
*/
|
|
int (*add_gid)(struct ib_device *device,
|
|
u8 port_num,
|
|
unsigned int index,
|
|
const union ib_gid *gid,
|
|
const struct ib_gid_attr *attr,
|
|
void **context);
|
|
/* When calling del_gid, the HW vendor's driver should delete the
|
|
* gid of device @device at gid index @index of port @port_num.
|
|
* Upon the deletion of a GID entry, the HW vendor must free any
|
|
* allocated memory. The caller will clear @context afterwards.
|
|
* This function is only called when roce_gid_table is used.
|
|
*/
|
|
int (*del_gid)(struct ib_device *device,
|
|
u8 port_num,
|
|
unsigned int index,
|
|
void **context);
|
|
int (*query_pkey)(struct ib_device *device,
|
|
u8 port_num, u16 index, u16 *pkey);
|
|
int (*modify_device)(struct ib_device *device,
|
|
int device_modify_mask,
|
|
struct ib_device_modify *device_modify);
|
|
int (*modify_port)(struct ib_device *device,
|
|
u8 port_num, int port_modify_mask,
|
|
struct ib_port_modify *port_modify);
|
|
struct ib_ucontext * (*alloc_ucontext)(struct ib_device *device,
|
|
struct ib_udata *udata);
|
|
int (*dealloc_ucontext)(struct ib_ucontext *context);
|
|
int (*mmap)(struct ib_ucontext *context,
|
|
struct vm_area_struct *vma);
|
|
struct ib_pd * (*alloc_pd)(struct ib_device *device,
|
|
struct ib_ucontext *context,
|
|
struct ib_udata *udata);
|
|
int (*dealloc_pd)(struct ib_pd *pd);
|
|
struct ib_ah * (*create_ah)(struct ib_pd *pd,
|
|
struct ib_ah_attr *ah_attr);
|
|
int (*modify_ah)(struct ib_ah *ah,
|
|
struct ib_ah_attr *ah_attr);
|
|
int (*query_ah)(struct ib_ah *ah,
|
|
struct ib_ah_attr *ah_attr);
|
|
int (*destroy_ah)(struct ib_ah *ah);
|
|
struct ib_srq * (*create_srq)(struct ib_pd *pd,
|
|
struct ib_srq_init_attr *srq_init_attr,
|
|
struct ib_udata *udata);
|
|
int (*modify_srq)(struct ib_srq *srq,
|
|
struct ib_srq_attr *srq_attr,
|
|
enum ib_srq_attr_mask srq_attr_mask,
|
|
struct ib_udata *udata);
|
|
int (*query_srq)(struct ib_srq *srq,
|
|
struct ib_srq_attr *srq_attr);
|
|
int (*destroy_srq)(struct ib_srq *srq);
|
|
int (*post_srq_recv)(struct ib_srq *srq,
|
|
struct ib_recv_wr *recv_wr,
|
|
struct ib_recv_wr **bad_recv_wr);
|
|
struct ib_qp * (*create_qp)(struct ib_pd *pd,
|
|
struct ib_qp_init_attr *qp_init_attr,
|
|
struct ib_udata *udata);
|
|
int (*modify_qp)(struct ib_qp *qp,
|
|
struct ib_qp_attr *qp_attr,
|
|
int qp_attr_mask,
|
|
struct ib_udata *udata);
|
|
int (*query_qp)(struct ib_qp *qp,
|
|
struct ib_qp_attr *qp_attr,
|
|
int qp_attr_mask,
|
|
struct ib_qp_init_attr *qp_init_attr);
|
|
int (*destroy_qp)(struct ib_qp *qp);
|
|
int (*post_send)(struct ib_qp *qp,
|
|
struct ib_send_wr *send_wr,
|
|
struct ib_send_wr **bad_send_wr);
|
|
int (*post_recv)(struct ib_qp *qp,
|
|
struct ib_recv_wr *recv_wr,
|
|
struct ib_recv_wr **bad_recv_wr);
|
|
struct ib_cq * (*create_cq)(struct ib_device *device,
|
|
const struct ib_cq_init_attr *attr,
|
|
struct ib_ucontext *context,
|
|
struct ib_udata *udata);
|
|
int (*modify_cq)(struct ib_cq *cq, u16 cq_count,
|
|
u16 cq_period);
|
|
int (*destroy_cq)(struct ib_cq *cq);
|
|
int (*resize_cq)(struct ib_cq *cq, int cqe,
|
|
struct ib_udata *udata);
|
|
int (*poll_cq)(struct ib_cq *cq, int num_entries,
|
|
struct ib_wc *wc);
|
|
int (*peek_cq)(struct ib_cq *cq, int wc_cnt);
|
|
int (*req_notify_cq)(struct ib_cq *cq,
|
|
enum ib_cq_notify_flags flags);
|
|
int (*req_ncomp_notif)(struct ib_cq *cq,
|
|
int wc_cnt);
|
|
struct ib_mr * (*get_dma_mr)(struct ib_pd *pd,
|
|
int mr_access_flags);
|
|
struct ib_mr * (*reg_phys_mr)(struct ib_pd *pd,
|
|
struct ib_phys_buf *phys_buf_array,
|
|
int num_phys_buf,
|
|
int mr_access_flags,
|
|
u64 *iova_start);
|
|
struct ib_mr * (*reg_user_mr)(struct ib_pd *pd,
|
|
u64 start, u64 length,
|
|
u64 virt_addr,
|
|
int mr_access_flags,
|
|
struct ib_udata *udata);
|
|
int (*rereg_user_mr)(struct ib_mr *mr,
|
|
int flags,
|
|
u64 start, u64 length,
|
|
u64 virt_addr,
|
|
int mr_access_flags,
|
|
struct ib_pd *pd,
|
|
struct ib_udata *udata);
|
|
int (*query_mr)(struct ib_mr *mr,
|
|
struct ib_mr_attr *mr_attr);
|
|
int (*dereg_mr)(struct ib_mr *mr);
|
|
struct ib_mr * (*alloc_mr)(struct ib_pd *pd,
|
|
enum ib_mr_type mr_type,
|
|
u32 max_num_sg);
|
|
int (*map_mr_sg)(struct ib_mr *mr,
|
|
struct scatterlist *sg,
|
|
int sg_nents);
|
|
int (*rereg_phys_mr)(struct ib_mr *mr,
|
|
int mr_rereg_mask,
|
|
struct ib_pd *pd,
|
|
struct ib_phys_buf *phys_buf_array,
|
|
int num_phys_buf,
|
|
int mr_access_flags,
|
|
u64 *iova_start);
|
|
struct ib_mw * (*alloc_mw)(struct ib_pd *pd,
|
|
enum ib_mw_type type);
|
|
int (*bind_mw)(struct ib_qp *qp,
|
|
struct ib_mw *mw,
|
|
struct ib_mw_bind *mw_bind);
|
|
int (*dealloc_mw)(struct ib_mw *mw);
|
|
struct ib_fmr * (*alloc_fmr)(struct ib_pd *pd,
|
|
int mr_access_flags,
|
|
struct ib_fmr_attr *fmr_attr);
|
|
int (*map_phys_fmr)(struct ib_fmr *fmr,
|
|
u64 *page_list, int list_len,
|
|
u64 iova);
|
|
int (*unmap_fmr)(struct list_head *fmr_list);
|
|
int (*dealloc_fmr)(struct ib_fmr *fmr);
|
|
int (*attach_mcast)(struct ib_qp *qp,
|
|
union ib_gid *gid,
|
|
u16 lid);
|
|
int (*detach_mcast)(struct ib_qp *qp,
|
|
union ib_gid *gid,
|
|
u16 lid);
|
|
int (*process_mad)(struct ib_device *device,
|
|
int process_mad_flags,
|
|
u8 port_num,
|
|
const struct ib_wc *in_wc,
|
|
const struct ib_grh *in_grh,
|
|
const struct ib_mad_hdr *in_mad,
|
|
size_t in_mad_size,
|
|
struct ib_mad_hdr *out_mad,
|
|
size_t *out_mad_size,
|
|
u16 *out_mad_pkey_index);
|
|
struct ib_xrcd * (*alloc_xrcd)(struct ib_device *device,
|
|
struct ib_ucontext *ucontext,
|
|
struct ib_udata *udata);
|
|
int (*dealloc_xrcd)(struct ib_xrcd *xrcd);
|
|
struct ib_flow * (*create_flow)(struct ib_qp *qp,
|
|
struct ib_flow_attr
|
|
*flow_attr,
|
|
int domain);
|
|
int (*destroy_flow)(struct ib_flow *flow_id);
|
|
int (*check_mr_status)(struct ib_mr *mr, u32 check_mask,
|
|
struct ib_mr_status *mr_status);
|
|
void (*disassociate_ucontext)(struct ib_ucontext *ibcontext);
|
|
|
|
struct ib_dma_mapping_ops *dma_ops;
|
|
|
|
struct module *owner;
|
|
struct device dev;
|
|
struct kobject *ports_parent;
|
|
struct list_head port_list;
|
|
|
|
enum {
|
|
IB_DEV_UNINITIALIZED,
|
|
IB_DEV_REGISTERED,
|
|
IB_DEV_UNREGISTERED
|
|
} reg_state;
|
|
|
|
int uverbs_abi_ver;
|
|
u64 uverbs_cmd_mask;
|
|
u64 uverbs_ex_cmd_mask;
|
|
|
|
char node_desc[64];
|
|
__be64 node_guid;
|
|
u32 local_dma_lkey;
|
|
u16 is_switch:1;
|
|
u8 node_type;
|
|
u8 phys_port_cnt;
|
|
|
|
/**
|
|
* The following mandatory functions are used only at device
|
|
* registration. Keep functions such as these at the end of this
|
|
* structure to avoid cache line misses when accessing struct ib_device
|
|
* in fast paths.
|
|
*/
|
|
int (*get_port_immutable)(struct ib_device *, u8, struct ib_port_immutable *);
|
|
};
|
|
|
|
struct ib_client {
|
|
char *name;
|
|
void (*add) (struct ib_device *);
|
|
void (*remove)(struct ib_device *, void *client_data);
|
|
|
|
/* Returns the net_dev belonging to this ib_client and matching the
|
|
* given parameters.
|
|
* @dev: An RDMA device that the net_dev use for communication.
|
|
* @port: A physical port number on the RDMA device.
|
|
* @pkey: P_Key that the net_dev uses if applicable.
|
|
* @gid: A GID that the net_dev uses to communicate.
|
|
* @addr: An IP address the net_dev is configured with.
|
|
* @client_data: The device's client data set by ib_set_client_data().
|
|
*
|
|
* An ib_client that implements a net_dev on top of RDMA devices
|
|
* (such as IP over IB) should implement this callback, allowing the
|
|
* rdma_cm module to find the right net_dev for a given request.
|
|
*
|
|
* The caller is responsible for calling dev_put on the returned
|
|
* netdev. */
|
|
struct net_device *(*get_net_dev_by_params)(
|
|
struct ib_device *dev,
|
|
u8 port,
|
|
u16 pkey,
|
|
const union ib_gid *gid,
|
|
const struct sockaddr *addr,
|
|
void *client_data);
|
|
struct list_head list;
|
|
};
|
|
|
|
struct ib_device *ib_alloc_device(size_t size);
|
|
void ib_dealloc_device(struct ib_device *device);
|
|
|
|
int ib_register_device(struct ib_device *device,
|
|
int (*port_callback)(struct ib_device *,
|
|
u8, struct kobject *));
|
|
void ib_unregister_device(struct ib_device *device);
|
|
|
|
int ib_register_client (struct ib_client *client);
|
|
void ib_unregister_client(struct ib_client *client);
|
|
|
|
void *ib_get_client_data(struct ib_device *device, struct ib_client *client);
|
|
void ib_set_client_data(struct ib_device *device, struct ib_client *client,
|
|
void *data);
|
|
|
|
static inline int ib_copy_from_udata(void *dest, struct ib_udata *udata, size_t len)
|
|
{
|
|
return copy_from_user(dest, udata->inbuf, len) ? -EFAULT : 0;
|
|
}
|
|
|
|
static inline int ib_copy_to_udata(struct ib_udata *udata, void *src, size_t len)
|
|
{
|
|
return copy_to_user(udata->outbuf, src, len) ? -EFAULT : 0;
|
|
}
|
|
|
|
/**
|
|
* ib_modify_qp_is_ok - Check that the supplied attribute mask
|
|
* contains all required attributes and no attributes not allowed for
|
|
* the given QP state transition.
|
|
* @cur_state: Current QP state
|
|
* @next_state: Next QP state
|
|
* @type: QP type
|
|
* @mask: Mask of supplied QP attributes
|
|
* @ll : link layer of port
|
|
*
|
|
* This function is a helper function that a low-level driver's
|
|
* modify_qp method can use to validate the consumer's input. It
|
|
* checks that cur_state and next_state are valid QP states, that a
|
|
* transition from cur_state to next_state is allowed by the IB spec,
|
|
* and that the attribute mask supplied is allowed for the transition.
|
|
*/
|
|
int ib_modify_qp_is_ok(enum ib_qp_state cur_state, enum ib_qp_state next_state,
|
|
enum ib_qp_type type, enum ib_qp_attr_mask mask,
|
|
enum rdma_link_layer ll);
|
|
|
|
int ib_register_event_handler (struct ib_event_handler *event_handler);
|
|
int ib_unregister_event_handler(struct ib_event_handler *event_handler);
|
|
void ib_dispatch_event(struct ib_event *event);
|
|
|
|
int ib_query_device(struct ib_device *device,
|
|
struct ib_device_attr *device_attr);
|
|
|
|
int ib_query_port(struct ib_device *device,
|
|
u8 port_num, struct ib_port_attr *port_attr);
|
|
|
|
enum rdma_link_layer rdma_port_get_link_layer(struct ib_device *device,
|
|
u8 port_num);
|
|
|
|
/**
|
|
* rdma_cap_ib_switch - Check if the device is IB switch
|
|
* @device: Device to check
|
|
*
|
|
* Device driver is responsible for setting is_switch bit on
|
|
* in ib_device structure at init time.
|
|
*
|
|
* Return: true if the device is IB switch.
|
|
*/
|
|
static inline bool rdma_cap_ib_switch(const struct ib_device *device)
|
|
{
|
|
return device->is_switch;
|
|
}
|
|
|
|
/**
|
|
* rdma_start_port - Return the first valid port number for the device
|
|
* specified
|
|
*
|
|
* @device: Device to be checked
|
|
*
|
|
* Return start port number
|
|
*/
|
|
static inline u8 rdma_start_port(const struct ib_device *device)
|
|
{
|
|
return rdma_cap_ib_switch(device) ? 0 : 1;
|
|
}
|
|
|
|
/**
|
|
* rdma_end_port - Return the last valid port number for the device
|
|
* specified
|
|
*
|
|
* @device: Device to be checked
|
|
*
|
|
* Return last port number
|
|
*/
|
|
static inline u8 rdma_end_port(const struct ib_device *device)
|
|
{
|
|
return rdma_cap_ib_switch(device) ? 0 : device->phys_port_cnt;
|
|
}
|
|
|
|
static inline bool rdma_protocol_ib(const struct ib_device *device, u8 port_num)
|
|
{
|
|
return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_PROT_IB;
|
|
}
|
|
|
|
static inline bool rdma_protocol_roce(const struct ib_device *device, u8 port_num)
|
|
{
|
|
return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_PROT_ROCE;
|
|
}
|
|
|
|
static inline bool rdma_protocol_iwarp(const struct ib_device *device, u8 port_num)
|
|
{
|
|
return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_PROT_IWARP;
|
|
}
|
|
|
|
static inline bool rdma_ib_or_roce(const struct ib_device *device, u8 port_num)
|
|
{
|
|
return device->port_immutable[port_num].core_cap_flags &
|
|
(RDMA_CORE_CAP_PROT_IB | RDMA_CORE_CAP_PROT_ROCE);
|
|
}
|
|
|
|
/**
|
|
* rdma_cap_ib_mad - Check if the port of a device supports Infiniband
|
|
* Management Datagrams.
|
|
* @device: Device to check
|
|
* @port_num: Port number to check
|
|
*
|
|
* Management Datagrams (MAD) are a required part of the InfiniBand
|
|
* specification and are supported on all InfiniBand devices. A slightly
|
|
* extended version are also supported on OPA interfaces.
|
|
*
|
|
* Return: true if the port supports sending/receiving of MAD packets.
|
|
*/
|
|
static inline bool rdma_cap_ib_mad(const struct ib_device *device, u8 port_num)
|
|
{
|
|
return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_IB_MAD;
|
|
}
|
|
|
|
/**
|
|
* rdma_cap_opa_mad - Check if the port of device provides support for OPA
|
|
* Management Datagrams.
|
|
* @device: Device to check
|
|
* @port_num: Port number to check
|
|
*
|
|
* Intel OmniPath devices extend and/or replace the InfiniBand Management
|
|
* datagrams with their own versions. These OPA MADs share many but not all of
|
|
* the characteristics of InfiniBand MADs.
|
|
*
|
|
* OPA MADs differ in the following ways:
|
|
*
|
|
* 1) MADs are variable size up to 2K
|
|
* IBTA defined MADs remain fixed at 256 bytes
|
|
* 2) OPA SMPs must carry valid PKeys
|
|
* 3) OPA SMP packets are a different format
|
|
*
|
|
* Return: true if the port supports OPA MAD packet formats.
|
|
*/
|
|
static inline bool rdma_cap_opa_mad(struct ib_device *device, u8 port_num)
|
|
{
|
|
return (device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_OPA_MAD)
|
|
== RDMA_CORE_CAP_OPA_MAD;
|
|
}
|
|
|
|
/**
|
|
* rdma_cap_ib_smi - Check if the port of a device provides an Infiniband
|
|
* Subnet Management Agent (SMA) on the Subnet Management Interface (SMI).
|
|
* @device: Device to check
|
|
* @port_num: Port number to check
|
|
*
|
|
* Each InfiniBand node is required to provide a Subnet Management Agent
|
|
* that the subnet manager can access. Prior to the fabric being fully
|
|
* configured by the subnet manager, the SMA is accessed via a well known
|
|
* interface called the Subnet Management Interface (SMI). This interface
|
|
* uses directed route packets to communicate with the SM to get around the
|
|
* chicken and egg problem of the SM needing to know what's on the fabric
|
|
* in order to configure the fabric, and needing to configure the fabric in
|
|
* order to send packets to the devices on the fabric. These directed
|
|
* route packets do not need the fabric fully configured in order to reach
|
|
* their destination. The SMI is the only method allowed to send
|
|
* directed route packets on an InfiniBand fabric.
|
|
*
|
|
* Return: true if the port provides an SMI.
|
|
*/
|
|
static inline bool rdma_cap_ib_smi(const struct ib_device *device, u8 port_num)
|
|
{
|
|
return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_IB_SMI;
|
|
}
|
|
|
|
/**
|
|
* rdma_cap_ib_cm - Check if the port of device has the capability Infiniband
|
|
* Communication Manager.
|
|
* @device: Device to check
|
|
* @port_num: Port number to check
|
|
*
|
|
* The InfiniBand Communication Manager is one of many pre-defined General
|
|
* Service Agents (GSA) that are accessed via the General Service
|
|
* Interface (GSI). It's role is to facilitate establishment of connections
|
|
* between nodes as well as other management related tasks for established
|
|
* connections.
|
|
*
|
|
* Return: true if the port supports an IB CM (this does not guarantee that
|
|
* a CM is actually running however).
|
|
*/
|
|
static inline bool rdma_cap_ib_cm(const struct ib_device *device, u8 port_num)
|
|
{
|
|
return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_IB_CM;
|
|
}
|
|
|
|
/**
|
|
* rdma_cap_iw_cm - Check if the port of device has the capability IWARP
|
|
* Communication Manager.
|
|
* @device: Device to check
|
|
* @port_num: Port number to check
|
|
*
|
|
* Similar to above, but specific to iWARP connections which have a different
|
|
* managment protocol than InfiniBand.
|
|
*
|
|
* Return: true if the port supports an iWARP CM (this does not guarantee that
|
|
* a CM is actually running however).
|
|
*/
|
|
static inline bool rdma_cap_iw_cm(const struct ib_device *device, u8 port_num)
|
|
{
|
|
return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_IW_CM;
|
|
}
|
|
|
|
/**
|
|
* rdma_cap_ib_sa - Check if the port of device has the capability Infiniband
|
|
* Subnet Administration.
|
|
* @device: Device to check
|
|
* @port_num: Port number to check
|
|
*
|
|
* An InfiniBand Subnet Administration (SA) service is a pre-defined General
|
|
* Service Agent (GSA) provided by the Subnet Manager (SM). On InfiniBand
|
|
* fabrics, devices should resolve routes to other hosts by contacting the
|
|
* SA to query the proper route.
|
|
*
|
|
* Return: true if the port should act as a client to the fabric Subnet
|
|
* Administration interface. This does not imply that the SA service is
|
|
* running locally.
|
|
*/
|
|
static inline bool rdma_cap_ib_sa(const struct ib_device *device, u8 port_num)
|
|
{
|
|
return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_IB_SA;
|
|
}
|
|
|
|
/**
|
|
* rdma_cap_ib_mcast - Check if the port of device has the capability Infiniband
|
|
* Multicast.
|
|
* @device: Device to check
|
|
* @port_num: Port number to check
|
|
*
|
|
* InfiniBand multicast registration is more complex than normal IPv4 or
|
|
* IPv6 multicast registration. Each Host Channel Adapter must register
|
|
* with the Subnet Manager when it wishes to join a multicast group. It
|
|
* should do so only once regardless of how many queue pairs it subscribes
|
|
* to this group. And it should leave the group only after all queue pairs
|
|
* attached to the group have been detached.
|
|
*
|
|
* Return: true if the port must undertake the additional adminstrative
|
|
* overhead of registering/unregistering with the SM and tracking of the
|
|
* total number of queue pairs attached to the multicast group.
|
|
*/
|
|
static inline bool rdma_cap_ib_mcast(const struct ib_device *device, u8 port_num)
|
|
{
|
|
return rdma_cap_ib_sa(device, port_num);
|
|
}
|
|
|
|
/**
|
|
* rdma_cap_af_ib - Check if the port of device has the capability
|
|
* Native Infiniband Address.
|
|
* @device: Device to check
|
|
* @port_num: Port number to check
|
|
*
|
|
* InfiniBand addressing uses a port's GUID + Subnet Prefix to make a default
|
|
* GID. RoCE uses a different mechanism, but still generates a GID via
|
|
* a prescribed mechanism and port specific data.
|
|
*
|
|
* Return: true if the port uses a GID address to identify devices on the
|
|
* network.
|
|
*/
|
|
static inline bool rdma_cap_af_ib(const struct ib_device *device, u8 port_num)
|
|
{
|
|
return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_AF_IB;
|
|
}
|
|
|
|
/**
|
|
* rdma_cap_eth_ah - Check if the port of device has the capability
|
|
* Ethernet Address Handle.
|
|
* @device: Device to check
|
|
* @port_num: Port number to check
|
|
*
|
|
* RoCE is InfiniBand over Ethernet, and it uses a well defined technique
|
|
* to fabricate GIDs over Ethernet/IP specific addresses native to the
|
|
* port. Normally, packet headers are generated by the sending host
|
|
* adapter, but when sending connectionless datagrams, we must manually
|
|
* inject the proper headers for the fabric we are communicating over.
|
|
*
|
|
* Return: true if we are running as a RoCE port and must force the
|
|
* addition of a Global Route Header built from our Ethernet Address
|
|
* Handle into our header list for connectionless packets.
|
|
*/
|
|
static inline bool rdma_cap_eth_ah(const struct ib_device *device, u8 port_num)
|
|
{
|
|
return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_ETH_AH;
|
|
}
|
|
|
|
/**
|
|
* rdma_max_mad_size - Return the max MAD size required by this RDMA Port.
|
|
*
|
|
* @device: Device
|
|
* @port_num: Port number
|
|
*
|
|
* This MAD size includes the MAD headers and MAD payload. No other headers
|
|
* are included.
|
|
*
|
|
* Return the max MAD size required by the Port. Will return 0 if the port
|
|
* does not support MADs
|
|
*/
|
|
static inline size_t rdma_max_mad_size(const struct ib_device *device, u8 port_num)
|
|
{
|
|
return device->port_immutable[port_num].max_mad_size;
|
|
}
|
|
|
|
/**
|
|
* rdma_cap_roce_gid_table - Check if the port of device uses roce_gid_table
|
|
* @device: Device to check
|
|
* @port_num: Port number to check
|
|
*
|
|
* RoCE GID table mechanism manages the various GIDs for a device.
|
|
*
|
|
* NOTE: if allocating the port's GID table has failed, this call will still
|
|
* return true, but any RoCE GID table API will fail.
|
|
*
|
|
* Return: true if the port uses RoCE GID table mechanism in order to manage
|
|
* its GIDs.
|
|
*/
|
|
static inline bool rdma_cap_roce_gid_table(const struct ib_device *device,
|
|
u8 port_num)
|
|
{
|
|
return rdma_protocol_roce(device, port_num) &&
|
|
device->add_gid && device->del_gid;
|
|
}
|
|
|
|
int ib_query_gid(struct ib_device *device,
|
|
u8 port_num, int index, union ib_gid *gid,
|
|
struct ib_gid_attr *attr);
|
|
|
|
int ib_query_pkey(struct ib_device *device,
|
|
u8 port_num, u16 index, u16 *pkey);
|
|
|
|
int ib_modify_device(struct ib_device *device,
|
|
int device_modify_mask,
|
|
struct ib_device_modify *device_modify);
|
|
|
|
int ib_modify_port(struct ib_device *device,
|
|
u8 port_num, int port_modify_mask,
|
|
struct ib_port_modify *port_modify);
|
|
|
|
int ib_find_gid(struct ib_device *device, union ib_gid *gid,
|
|
struct net_device *ndev, u8 *port_num, u16 *index);
|
|
|
|
int ib_find_pkey(struct ib_device *device,
|
|
u8 port_num, u16 pkey, u16 *index);
|
|
|
|
struct ib_pd *ib_alloc_pd(struct ib_device *device);
|
|
|
|
void ib_dealloc_pd(struct ib_pd *pd);
|
|
|
|
/**
|
|
* ib_create_ah - Creates an address handle for the given address vector.
|
|
* @pd: The protection domain associated with the address handle.
|
|
* @ah_attr: The attributes of the address vector.
|
|
*
|
|
* The address handle is used to reference a local or global destination
|
|
* in all UD QP post sends.
|
|
*/
|
|
struct ib_ah *ib_create_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr);
|
|
|
|
/**
|
|
* ib_init_ah_from_wc - Initializes address handle attributes from a
|
|
* work completion.
|
|
* @device: Device on which the received message arrived.
|
|
* @port_num: Port on which the received message arrived.
|
|
* @wc: Work completion associated with the received message.
|
|
* @grh: References the received global route header. This parameter is
|
|
* ignored unless the work completion indicates that the GRH is valid.
|
|
* @ah_attr: Returned attributes that can be used when creating an address
|
|
* handle for replying to the message.
|
|
*/
|
|
int ib_init_ah_from_wc(struct ib_device *device, u8 port_num,
|
|
const struct ib_wc *wc, const struct ib_grh *grh,
|
|
struct ib_ah_attr *ah_attr);
|
|
|
|
/**
|
|
* ib_create_ah_from_wc - Creates an address handle associated with the
|
|
* sender of the specified work completion.
|
|
* @pd: The protection domain associated with the address handle.
|
|
* @wc: Work completion information associated with a received message.
|
|
* @grh: References the received global route header. This parameter is
|
|
* ignored unless the work completion indicates that the GRH is valid.
|
|
* @port_num: The outbound port number to associate with the address.
|
|
*
|
|
* The address handle is used to reference a local or global destination
|
|
* in all UD QP post sends.
|
|
*/
|
|
struct ib_ah *ib_create_ah_from_wc(struct ib_pd *pd, const struct ib_wc *wc,
|
|
const struct ib_grh *grh, u8 port_num);
|
|
|
|
/**
|
|
* ib_modify_ah - Modifies the address vector associated with an address
|
|
* handle.
|
|
* @ah: The address handle to modify.
|
|
* @ah_attr: The new address vector attributes to associate with the
|
|
* address handle.
|
|
*/
|
|
int ib_modify_ah(struct ib_ah *ah, struct ib_ah_attr *ah_attr);
|
|
|
|
/**
|
|
* ib_query_ah - Queries the address vector associated with an address
|
|
* handle.
|
|
* @ah: The address handle to query.
|
|
* @ah_attr: The address vector attributes associated with the address
|
|
* handle.
|
|
*/
|
|
int ib_query_ah(struct ib_ah *ah, struct ib_ah_attr *ah_attr);
|
|
|
|
/**
|
|
* ib_destroy_ah - Destroys an address handle.
|
|
* @ah: The address handle to destroy.
|
|
*/
|
|
int ib_destroy_ah(struct ib_ah *ah);
|
|
|
|
/**
|
|
* ib_create_srq - Creates a SRQ associated with the specified protection
|
|
* domain.
|
|
* @pd: The protection domain associated with the SRQ.
|
|
* @srq_init_attr: A list of initial attributes required to create the
|
|
* SRQ. If SRQ creation succeeds, then the attributes are updated to
|
|
* the actual capabilities of the created SRQ.
|
|
*
|
|
* srq_attr->max_wr and srq_attr->max_sge are read the determine the
|
|
* requested size of the SRQ, and set to the actual values allocated
|
|
* on return. If ib_create_srq() succeeds, then max_wr and max_sge
|
|
* will always be at least as large as the requested values.
|
|
*/
|
|
struct ib_srq *ib_create_srq(struct ib_pd *pd,
|
|
struct ib_srq_init_attr *srq_init_attr);
|
|
|
|
/**
|
|
* ib_modify_srq - Modifies the attributes for the specified SRQ.
|
|
* @srq: The SRQ to modify.
|
|
* @srq_attr: On input, specifies the SRQ attributes to modify. On output,
|
|
* the current values of selected SRQ attributes are returned.
|
|
* @srq_attr_mask: A bit-mask used to specify which attributes of the SRQ
|
|
* are being modified.
|
|
*
|
|
* The mask may contain IB_SRQ_MAX_WR to resize the SRQ and/or
|
|
* IB_SRQ_LIMIT to set the SRQ's limit and request notification when
|
|
* the number of receives queued drops below the limit.
|
|
*/
|
|
int ib_modify_srq(struct ib_srq *srq,
|
|
struct ib_srq_attr *srq_attr,
|
|
enum ib_srq_attr_mask srq_attr_mask);
|
|
|
|
/**
|
|
* ib_query_srq - Returns the attribute list and current values for the
|
|
* specified SRQ.
|
|
* @srq: The SRQ to query.
|
|
* @srq_attr: The attributes of the specified SRQ.
|
|
*/
|
|
int ib_query_srq(struct ib_srq *srq,
|
|
struct ib_srq_attr *srq_attr);
|
|
|
|
/**
|
|
* ib_destroy_srq - Destroys the specified SRQ.
|
|
* @srq: The SRQ to destroy.
|
|
*/
|
|
int ib_destroy_srq(struct ib_srq *srq);
|
|
|
|
/**
|
|
* ib_post_srq_recv - Posts a list of work requests to the specified SRQ.
|
|
* @srq: The SRQ to post the work request on.
|
|
* @recv_wr: A list of work requests to post on the receive queue.
|
|
* @bad_recv_wr: On an immediate failure, this parameter will reference
|
|
* the work request that failed to be posted on the QP.
|
|
*/
|
|
static inline int ib_post_srq_recv(struct ib_srq *srq,
|
|
struct ib_recv_wr *recv_wr,
|
|
struct ib_recv_wr **bad_recv_wr)
|
|
{
|
|
return srq->device->post_srq_recv(srq, recv_wr, bad_recv_wr);
|
|
}
|
|
|
|
/**
|
|
* ib_create_qp - Creates a QP associated with the specified protection
|
|
* domain.
|
|
* @pd: The protection domain associated with the QP.
|
|
* @qp_init_attr: A list of initial attributes required to create the
|
|
* QP. If QP creation succeeds, then the attributes are updated to
|
|
* the actual capabilities of the created QP.
|
|
*/
|
|
struct ib_qp *ib_create_qp(struct ib_pd *pd,
|
|
struct ib_qp_init_attr *qp_init_attr);
|
|
|
|
/**
|
|
* ib_modify_qp - Modifies the attributes for the specified QP and then
|
|
* transitions the QP to the given state.
|
|
* @qp: The QP to modify.
|
|
* @qp_attr: On input, specifies the QP attributes to modify. On output,
|
|
* the current values of selected QP attributes are returned.
|
|
* @qp_attr_mask: A bit-mask used to specify which attributes of the QP
|
|
* are being modified.
|
|
*/
|
|
int ib_modify_qp(struct ib_qp *qp,
|
|
struct ib_qp_attr *qp_attr,
|
|
int qp_attr_mask);
|
|
|
|
/**
|
|
* ib_query_qp - Returns the attribute list and current values for the
|
|
* specified QP.
|
|
* @qp: The QP to query.
|
|
* @qp_attr: The attributes of the specified QP.
|
|
* @qp_attr_mask: A bit-mask used to select specific attributes to query.
|
|
* @qp_init_attr: Additional attributes of the selected QP.
|
|
*
|
|
* The qp_attr_mask may be used to limit the query to gathering only the
|
|
* selected attributes.
|
|
*/
|
|
int ib_query_qp(struct ib_qp *qp,
|
|
struct ib_qp_attr *qp_attr,
|
|
int qp_attr_mask,
|
|
struct ib_qp_init_attr *qp_init_attr);
|
|
|
|
/**
|
|
* ib_destroy_qp - Destroys the specified QP.
|
|
* @qp: The QP to destroy.
|
|
*/
|
|
int ib_destroy_qp(struct ib_qp *qp);
|
|
|
|
/**
|
|
* ib_open_qp - Obtain a reference to an existing sharable QP.
|
|
* @xrcd - XRC domain
|
|
* @qp_open_attr: Attributes identifying the QP to open.
|
|
*
|
|
* Returns a reference to a sharable QP.
|
|
*/
|
|
struct ib_qp *ib_open_qp(struct ib_xrcd *xrcd,
|
|
struct ib_qp_open_attr *qp_open_attr);
|
|
|
|
/**
|
|
* ib_close_qp - Release an external reference to a QP.
|
|
* @qp: The QP handle to release
|
|
*
|
|
* The opened QP handle is released by the caller. The underlying
|
|
* shared QP is not destroyed until all internal references are released.
|
|
*/
|
|
int ib_close_qp(struct ib_qp *qp);
|
|
|
|
/**
|
|
* ib_post_send - Posts a list of work requests to the send queue of
|
|
* the specified QP.
|
|
* @qp: The QP to post the work request on.
|
|
* @send_wr: A list of work requests to post on the send queue.
|
|
* @bad_send_wr: On an immediate failure, this parameter will reference
|
|
* the work request that failed to be posted on the QP.
|
|
*
|
|
* While IBA Vol. 1 section 11.4.1.1 specifies that if an immediate
|
|
* error is returned, the QP state shall not be affected,
|
|
* ib_post_send() will return an immediate error after queueing any
|
|
* earlier work requests in the list.
|
|
*/
|
|
static inline int ib_post_send(struct ib_qp *qp,
|
|
struct ib_send_wr *send_wr,
|
|
struct ib_send_wr **bad_send_wr)
|
|
{
|
|
return qp->device->post_send(qp, send_wr, bad_send_wr);
|
|
}
|
|
|
|
/**
|
|
* ib_post_recv - Posts a list of work requests to the receive queue of
|
|
* the specified QP.
|
|
* @qp: The QP to post the work request on.
|
|
* @recv_wr: A list of work requests to post on the receive queue.
|
|
* @bad_recv_wr: On an immediate failure, this parameter will reference
|
|
* the work request that failed to be posted on the QP.
|
|
*/
|
|
static inline int ib_post_recv(struct ib_qp *qp,
|
|
struct ib_recv_wr *recv_wr,
|
|
struct ib_recv_wr **bad_recv_wr)
|
|
{
|
|
return qp->device->post_recv(qp, recv_wr, bad_recv_wr);
|
|
}
|
|
|
|
/**
|
|
* ib_create_cq - Creates a CQ on the specified device.
|
|
* @device: The device on which to create the CQ.
|
|
* @comp_handler: A user-specified callback that is invoked when a
|
|
* completion event occurs on the CQ.
|
|
* @event_handler: A user-specified callback that is invoked when an
|
|
* asynchronous event not associated with a completion occurs on the CQ.
|
|
* @cq_context: Context associated with the CQ returned to the user via
|
|
* the associated completion and event handlers.
|
|
* @cq_attr: The attributes the CQ should be created upon.
|
|
*
|
|
* Users can examine the cq structure to determine the actual CQ size.
|
|
*/
|
|
struct ib_cq *ib_create_cq(struct ib_device *device,
|
|
ib_comp_handler comp_handler,
|
|
void (*event_handler)(struct ib_event *, void *),
|
|
void *cq_context,
|
|
const struct ib_cq_init_attr *cq_attr);
|
|
|
|
/**
|
|
* ib_resize_cq - Modifies the capacity of the CQ.
|
|
* @cq: The CQ to resize.
|
|
* @cqe: The minimum size of the CQ.
|
|
*
|
|
* Users can examine the cq structure to determine the actual CQ size.
|
|
*/
|
|
int ib_resize_cq(struct ib_cq *cq, int cqe);
|
|
|
|
/**
|
|
* ib_modify_cq - Modifies moderation params of the CQ
|
|
* @cq: The CQ to modify.
|
|
* @cq_count: number of CQEs that will trigger an event
|
|
* @cq_period: max period of time in usec before triggering an event
|
|
*
|
|
*/
|
|
int ib_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period);
|
|
|
|
/**
|
|
* ib_destroy_cq - Destroys the specified CQ.
|
|
* @cq: The CQ to destroy.
|
|
*/
|
|
int ib_destroy_cq(struct ib_cq *cq);
|
|
|
|
/**
|
|
* ib_poll_cq - poll a CQ for completion(s)
|
|
* @cq:the CQ being polled
|
|
* @num_entries:maximum number of completions to return
|
|
* @wc:array of at least @num_entries &struct ib_wc where completions
|
|
* will be returned
|
|
*
|
|
* Poll a CQ for (possibly multiple) completions. If the return value
|
|
* is < 0, an error occurred. If the return value is >= 0, it is the
|
|
* number of completions returned. If the return value is
|
|
* non-negative and < num_entries, then the CQ was emptied.
|
|
*/
|
|
static inline int ib_poll_cq(struct ib_cq *cq, int num_entries,
|
|
struct ib_wc *wc)
|
|
{
|
|
return cq->device->poll_cq(cq, num_entries, wc);
|
|
}
|
|
|
|
/**
|
|
* ib_peek_cq - Returns the number of unreaped completions currently
|
|
* on the specified CQ.
|
|
* @cq: The CQ to peek.
|
|
* @wc_cnt: A minimum number of unreaped completions to check for.
|
|
*
|
|
* If the number of unreaped completions is greater than or equal to wc_cnt,
|
|
* this function returns wc_cnt, otherwise, it returns the actual number of
|
|
* unreaped completions.
|
|
*/
|
|
int ib_peek_cq(struct ib_cq *cq, int wc_cnt);
|
|
|
|
/**
|
|
* ib_req_notify_cq - Request completion notification on a CQ.
|
|
* @cq: The CQ to generate an event for.
|
|
* @flags:
|
|
* Must contain exactly one of %IB_CQ_SOLICITED or %IB_CQ_NEXT_COMP
|
|
* to request an event on the next solicited event or next work
|
|
* completion at any type, respectively. %IB_CQ_REPORT_MISSED_EVENTS
|
|
* may also be |ed in to request a hint about missed events, as
|
|
* described below.
|
|
*
|
|
* Return Value:
|
|
* < 0 means an error occurred while requesting notification
|
|
* == 0 means notification was requested successfully, and if
|
|
* IB_CQ_REPORT_MISSED_EVENTS was passed in, then no events
|
|
* were missed and it is safe to wait for another event. In
|
|
* this case is it guaranteed that any work completions added
|
|
* to the CQ since the last CQ poll will trigger a completion
|
|
* notification event.
|
|
* > 0 is only returned if IB_CQ_REPORT_MISSED_EVENTS was passed
|
|
* in. It means that the consumer must poll the CQ again to
|
|
* make sure it is empty to avoid missing an event because of a
|
|
* race between requesting notification and an entry being
|
|
* added to the CQ. This return value means it is possible
|
|
* (but not guaranteed) that a work completion has been added
|
|
* to the CQ since the last poll without triggering a
|
|
* completion notification event.
|
|
*/
|
|
static inline int ib_req_notify_cq(struct ib_cq *cq,
|
|
enum ib_cq_notify_flags flags)
|
|
{
|
|
return cq->device->req_notify_cq(cq, flags);
|
|
}
|
|
|
|
/**
|
|
* ib_req_ncomp_notif - Request completion notification when there are
|
|
* at least the specified number of unreaped completions on the CQ.
|
|
* @cq: The CQ to generate an event for.
|
|
* @wc_cnt: The number of unreaped completions that should be on the
|
|
* CQ before an event is generated.
|
|
*/
|
|
static inline int ib_req_ncomp_notif(struct ib_cq *cq, int wc_cnt)
|
|
{
|
|
return cq->device->req_ncomp_notif ?
|
|
cq->device->req_ncomp_notif(cq, wc_cnt) :
|
|
-ENOSYS;
|
|
}
|
|
|
|
/**
|
|
* ib_get_dma_mr - Returns a memory region for system memory that is
|
|
* usable for DMA.
|
|
* @pd: The protection domain associated with the memory region.
|
|
* @mr_access_flags: Specifies the memory access rights.
|
|
*
|
|
* Note that the ib_dma_*() functions defined below must be used
|
|
* to create/destroy addresses used with the Lkey or Rkey returned
|
|
* by ib_get_dma_mr().
|
|
*/
|
|
struct ib_mr *ib_get_dma_mr(struct ib_pd *pd, int mr_access_flags);
|
|
|
|
/**
|
|
* ib_dma_mapping_error - check a DMA addr for error
|
|
* @dev: The device for which the dma_addr was created
|
|
* @dma_addr: The DMA address to check
|
|
*/
|
|
static inline int ib_dma_mapping_error(struct ib_device *dev, u64 dma_addr)
|
|
{
|
|
if (dev->dma_ops)
|
|
return dev->dma_ops->mapping_error(dev, dma_addr);
|
|
return dma_mapping_error(dev->dma_device, dma_addr);
|
|
}
|
|
|
|
/**
|
|
* ib_dma_map_single - Map a kernel virtual address to DMA address
|
|
* @dev: The device for which the dma_addr is to be created
|
|
* @cpu_addr: The kernel virtual address
|
|
* @size: The size of the region in bytes
|
|
* @direction: The direction of the DMA
|
|
*/
|
|
static inline u64 ib_dma_map_single(struct ib_device *dev,
|
|
void *cpu_addr, size_t size,
|
|
enum dma_data_direction direction)
|
|
{
|
|
if (dev->dma_ops)
|
|
return dev->dma_ops->map_single(dev, cpu_addr, size, direction);
|
|
return dma_map_single(dev->dma_device, cpu_addr, size, direction);
|
|
}
|
|
|
|
/**
|
|
* ib_dma_unmap_single - Destroy a mapping created by ib_dma_map_single()
|
|
* @dev: The device for which the DMA address was created
|
|
* @addr: The DMA address
|
|
* @size: The size of the region in bytes
|
|
* @direction: The direction of the DMA
|
|
*/
|
|
static inline void ib_dma_unmap_single(struct ib_device *dev,
|
|
u64 addr, size_t size,
|
|
enum dma_data_direction direction)
|
|
{
|
|
if (dev->dma_ops)
|
|
dev->dma_ops->unmap_single(dev, addr, size, direction);
|
|
else
|
|
dma_unmap_single(dev->dma_device, addr, size, direction);
|
|
}
|
|
|
|
static inline u64 ib_dma_map_single_attrs(struct ib_device *dev,
|
|
void *cpu_addr, size_t size,
|
|
enum dma_data_direction direction,
|
|
struct dma_attrs *attrs)
|
|
{
|
|
return dma_map_single_attrs(dev->dma_device, cpu_addr, size,
|
|
direction, attrs);
|
|
}
|
|
|
|
static inline void ib_dma_unmap_single_attrs(struct ib_device *dev,
|
|
u64 addr, size_t size,
|
|
enum dma_data_direction direction,
|
|
struct dma_attrs *attrs)
|
|
{
|
|
return dma_unmap_single_attrs(dev->dma_device, addr, size,
|
|
direction, attrs);
|
|
}
|
|
|
|
/**
|
|
* ib_dma_map_page - Map a physical page to DMA address
|
|
* @dev: The device for which the dma_addr is to be created
|
|
* @page: The page to be mapped
|
|
* @offset: The offset within the page
|
|
* @size: The size of the region in bytes
|
|
* @direction: The direction of the DMA
|
|
*/
|
|
static inline u64 ib_dma_map_page(struct ib_device *dev,
|
|
struct page *page,
|
|
unsigned long offset,
|
|
size_t size,
|
|
enum dma_data_direction direction)
|
|
{
|
|
if (dev->dma_ops)
|
|
return dev->dma_ops->map_page(dev, page, offset, size, direction);
|
|
return dma_map_page(dev->dma_device, page, offset, size, direction);
|
|
}
|
|
|
|
/**
|
|
* ib_dma_unmap_page - Destroy a mapping created by ib_dma_map_page()
|
|
* @dev: The device for which the DMA address was created
|
|
* @addr: The DMA address
|
|
* @size: The size of the region in bytes
|
|
* @direction: The direction of the DMA
|
|
*/
|
|
static inline void ib_dma_unmap_page(struct ib_device *dev,
|
|
u64 addr, size_t size,
|
|
enum dma_data_direction direction)
|
|
{
|
|
if (dev->dma_ops)
|
|
dev->dma_ops->unmap_page(dev, addr, size, direction);
|
|
else
|
|
dma_unmap_page(dev->dma_device, addr, size, direction);
|
|
}
|
|
|
|
/**
|
|
* ib_dma_map_sg - Map a scatter/gather list to DMA addresses
|
|
* @dev: The device for which the DMA addresses are to be created
|
|
* @sg: The array of scatter/gather entries
|
|
* @nents: The number of scatter/gather entries
|
|
* @direction: The direction of the DMA
|
|
*/
|
|
static inline int ib_dma_map_sg(struct ib_device *dev,
|
|
struct scatterlist *sg, int nents,
|
|
enum dma_data_direction direction)
|
|
{
|
|
if (dev->dma_ops)
|
|
return dev->dma_ops->map_sg(dev, sg, nents, direction);
|
|
return dma_map_sg(dev->dma_device, sg, nents, direction);
|
|
}
|
|
|
|
/**
|
|
* ib_dma_unmap_sg - Unmap a scatter/gather list of DMA addresses
|
|
* @dev: The device for which the DMA addresses were created
|
|
* @sg: The array of scatter/gather entries
|
|
* @nents: The number of scatter/gather entries
|
|
* @direction: The direction of the DMA
|
|
*/
|
|
static inline void ib_dma_unmap_sg(struct ib_device *dev,
|
|
struct scatterlist *sg, int nents,
|
|
enum dma_data_direction direction)
|
|
{
|
|
if (dev->dma_ops)
|
|
dev->dma_ops->unmap_sg(dev, sg, nents, direction);
|
|
else
|
|
dma_unmap_sg(dev->dma_device, sg, nents, direction);
|
|
}
|
|
|
|
static inline int ib_dma_map_sg_attrs(struct ib_device *dev,
|
|
struct scatterlist *sg, int nents,
|
|
enum dma_data_direction direction,
|
|
struct dma_attrs *attrs)
|
|
{
|
|
return dma_map_sg_attrs(dev->dma_device, sg, nents, direction, attrs);
|
|
}
|
|
|
|
static inline void ib_dma_unmap_sg_attrs(struct ib_device *dev,
|
|
struct scatterlist *sg, int nents,
|
|
enum dma_data_direction direction,
|
|
struct dma_attrs *attrs)
|
|
{
|
|
dma_unmap_sg_attrs(dev->dma_device, sg, nents, direction, attrs);
|
|
}
|
|
/**
|
|
* ib_sg_dma_address - Return the DMA address from a scatter/gather entry
|
|
* @dev: The device for which the DMA addresses were created
|
|
* @sg: The scatter/gather entry
|
|
*
|
|
* Note: this function is obsolete. To do: change all occurrences of
|
|
* ib_sg_dma_address() into sg_dma_address().
|
|
*/
|
|
static inline u64 ib_sg_dma_address(struct ib_device *dev,
|
|
struct scatterlist *sg)
|
|
{
|
|
return sg_dma_address(sg);
|
|
}
|
|
|
|
/**
|
|
* ib_sg_dma_len - Return the DMA length from a scatter/gather entry
|
|
* @dev: The device for which the DMA addresses were created
|
|
* @sg: The scatter/gather entry
|
|
*
|
|
* Note: this function is obsolete. To do: change all occurrences of
|
|
* ib_sg_dma_len() into sg_dma_len().
|
|
*/
|
|
static inline unsigned int ib_sg_dma_len(struct ib_device *dev,
|
|
struct scatterlist *sg)
|
|
{
|
|
return sg_dma_len(sg);
|
|
}
|
|
|
|
/**
|
|
* ib_dma_sync_single_for_cpu - Prepare DMA region to be accessed by CPU
|
|
* @dev: The device for which the DMA address was created
|
|
* @addr: The DMA address
|
|
* @size: The size of the region in bytes
|
|
* @dir: The direction of the DMA
|
|
*/
|
|
static inline void ib_dma_sync_single_for_cpu(struct ib_device *dev,
|
|
u64 addr,
|
|
size_t size,
|
|
enum dma_data_direction dir)
|
|
{
|
|
if (dev->dma_ops)
|
|
dev->dma_ops->sync_single_for_cpu(dev, addr, size, dir);
|
|
else
|
|
dma_sync_single_for_cpu(dev->dma_device, addr, size, dir);
|
|
}
|
|
|
|
/**
|
|
* ib_dma_sync_single_for_device - Prepare DMA region to be accessed by device
|
|
* @dev: The device for which the DMA address was created
|
|
* @addr: The DMA address
|
|
* @size: The size of the region in bytes
|
|
* @dir: The direction of the DMA
|
|
*/
|
|
static inline void ib_dma_sync_single_for_device(struct ib_device *dev,
|
|
u64 addr,
|
|
size_t size,
|
|
enum dma_data_direction dir)
|
|
{
|
|
if (dev->dma_ops)
|
|
dev->dma_ops->sync_single_for_device(dev, addr, size, dir);
|
|
else
|
|
dma_sync_single_for_device(dev->dma_device, addr, size, dir);
|
|
}
|
|
|
|
/**
|
|
* ib_dma_alloc_coherent - Allocate memory and map it for DMA
|
|
* @dev: The device for which the DMA address is requested
|
|
* @size: The size of the region to allocate in bytes
|
|
* @dma_handle: A pointer for returning the DMA address of the region
|
|
* @flag: memory allocator flags
|
|
*/
|
|
static inline void *ib_dma_alloc_coherent(struct ib_device *dev,
|
|
size_t size,
|
|
u64 *dma_handle,
|
|
gfp_t flag)
|
|
{
|
|
if (dev->dma_ops)
|
|
return dev->dma_ops->alloc_coherent(dev, size, dma_handle, flag);
|
|
else {
|
|
dma_addr_t handle;
|
|
void *ret;
|
|
|
|
ret = dma_alloc_coherent(dev->dma_device, size, &handle, flag);
|
|
*dma_handle = handle;
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* ib_dma_free_coherent - Free memory allocated by ib_dma_alloc_coherent()
|
|
* @dev: The device for which the DMA addresses were allocated
|
|
* @size: The size of the region
|
|
* @cpu_addr: the address returned by ib_dma_alloc_coherent()
|
|
* @dma_handle: the DMA address returned by ib_dma_alloc_coherent()
|
|
*/
|
|
static inline void ib_dma_free_coherent(struct ib_device *dev,
|
|
size_t size, void *cpu_addr,
|
|
u64 dma_handle)
|
|
{
|
|
if (dev->dma_ops)
|
|
dev->dma_ops->free_coherent(dev, size, cpu_addr, dma_handle);
|
|
else
|
|
dma_free_coherent(dev->dma_device, size, cpu_addr, dma_handle);
|
|
}
|
|
|
|
/**
|
|
* ib_query_mr - Retrieves information about a specific memory region.
|
|
* @mr: The memory region to retrieve information about.
|
|
* @mr_attr: The attributes of the specified memory region.
|
|
*/
|
|
int ib_query_mr(struct ib_mr *mr, struct ib_mr_attr *mr_attr);
|
|
|
|
/**
|
|
* ib_dereg_mr - Deregisters a memory region and removes it from the
|
|
* HCA translation table.
|
|
* @mr: The memory region to deregister.
|
|
*
|
|
* This function can fail, if the memory region has memory windows bound to it.
|
|
*/
|
|
int ib_dereg_mr(struct ib_mr *mr);
|
|
|
|
struct ib_mr *ib_alloc_mr(struct ib_pd *pd,
|
|
enum ib_mr_type mr_type,
|
|
u32 max_num_sg);
|
|
|
|
/**
|
|
* ib_update_fast_reg_key - updates the key portion of the fast_reg MR
|
|
* R_Key and L_Key.
|
|
* @mr - struct ib_mr pointer to be updated.
|
|
* @newkey - new key to be used.
|
|
*/
|
|
static inline void ib_update_fast_reg_key(struct ib_mr *mr, u8 newkey)
|
|
{
|
|
mr->lkey = (mr->lkey & 0xffffff00) | newkey;
|
|
mr->rkey = (mr->rkey & 0xffffff00) | newkey;
|
|
}
|
|
|
|
/**
|
|
* ib_inc_rkey - increments the key portion of the given rkey. Can be used
|
|
* for calculating a new rkey for type 2 memory windows.
|
|
* @rkey - the rkey to increment.
|
|
*/
|
|
static inline u32 ib_inc_rkey(u32 rkey)
|
|
{
|
|
const u32 mask = 0x000000ff;
|
|
return ((rkey + 1) & mask) | (rkey & ~mask);
|
|
}
|
|
|
|
/**
|
|
* ib_alloc_mw - Allocates a memory window.
|
|
* @pd: The protection domain associated with the memory window.
|
|
* @type: The type of the memory window (1 or 2).
|
|
*/
|
|
struct ib_mw *ib_alloc_mw(struct ib_pd *pd, enum ib_mw_type type);
|
|
|
|
/**
|
|
* ib_bind_mw - Posts a work request to the send queue of the specified
|
|
* QP, which binds the memory window to the given address range and
|
|
* remote access attributes.
|
|
* @qp: QP to post the bind work request on.
|
|
* @mw: The memory window to bind.
|
|
* @mw_bind: Specifies information about the memory window, including
|
|
* its address range, remote access rights, and associated memory region.
|
|
*
|
|
* If there is no immediate error, the function will update the rkey member
|
|
* of the mw parameter to its new value. The bind operation can still fail
|
|
* asynchronously.
|
|
*/
|
|
static inline int ib_bind_mw(struct ib_qp *qp,
|
|
struct ib_mw *mw,
|
|
struct ib_mw_bind *mw_bind)
|
|
{
|
|
/* XXX reference counting in corresponding MR? */
|
|
return mw->device->bind_mw ?
|
|
mw->device->bind_mw(qp, mw, mw_bind) :
|
|
-ENOSYS;
|
|
}
|
|
|
|
/**
|
|
* ib_dealloc_mw - Deallocates a memory window.
|
|
* @mw: The memory window to deallocate.
|
|
*/
|
|
int ib_dealloc_mw(struct ib_mw *mw);
|
|
|
|
/**
|
|
* ib_alloc_fmr - Allocates a unmapped fast memory region.
|
|
* @pd: The protection domain associated with the unmapped region.
|
|
* @mr_access_flags: Specifies the memory access rights.
|
|
* @fmr_attr: Attributes of the unmapped region.
|
|
*
|
|
* A fast memory region must be mapped before it can be used as part of
|
|
* a work request.
|
|
*/
|
|
struct ib_fmr *ib_alloc_fmr(struct ib_pd *pd,
|
|
int mr_access_flags,
|
|
struct ib_fmr_attr *fmr_attr);
|
|
|
|
/**
|
|
* ib_map_phys_fmr - Maps a list of physical pages to a fast memory region.
|
|
* @fmr: The fast memory region to associate with the pages.
|
|
* @page_list: An array of physical pages to map to the fast memory region.
|
|
* @list_len: The number of pages in page_list.
|
|
* @iova: The I/O virtual address to use with the mapped region.
|
|
*/
|
|
static inline int ib_map_phys_fmr(struct ib_fmr *fmr,
|
|
u64 *page_list, int list_len,
|
|
u64 iova)
|
|
{
|
|
return fmr->device->map_phys_fmr(fmr, page_list, list_len, iova);
|
|
}
|
|
|
|
/**
|
|
* ib_unmap_fmr - Removes the mapping from a list of fast memory regions.
|
|
* @fmr_list: A linked list of fast memory regions to unmap.
|
|
*/
|
|
int ib_unmap_fmr(struct list_head *fmr_list);
|
|
|
|
/**
|
|
* ib_dealloc_fmr - Deallocates a fast memory region.
|
|
* @fmr: The fast memory region to deallocate.
|
|
*/
|
|
int ib_dealloc_fmr(struct ib_fmr *fmr);
|
|
|
|
/**
|
|
* ib_attach_mcast - Attaches the specified QP to a multicast group.
|
|
* @qp: QP to attach to the multicast group. The QP must be type
|
|
* IB_QPT_UD.
|
|
* @gid: Multicast group GID.
|
|
* @lid: Multicast group LID in host byte order.
|
|
*
|
|
* In order to send and receive multicast packets, subnet
|
|
* administration must have created the multicast group and configured
|
|
* the fabric appropriately. The port associated with the specified
|
|
* QP must also be a member of the multicast group.
|
|
*/
|
|
int ib_attach_mcast(struct ib_qp *qp, union ib_gid *gid, u16 lid);
|
|
|
|
/**
|
|
* ib_detach_mcast - Detaches the specified QP from a multicast group.
|
|
* @qp: QP to detach from the multicast group.
|
|
* @gid: Multicast group GID.
|
|
* @lid: Multicast group LID in host byte order.
|
|
*/
|
|
int ib_detach_mcast(struct ib_qp *qp, union ib_gid *gid, u16 lid);
|
|
|
|
/**
|
|
* ib_alloc_xrcd - Allocates an XRC domain.
|
|
* @device: The device on which to allocate the XRC domain.
|
|
*/
|
|
struct ib_xrcd *ib_alloc_xrcd(struct ib_device *device);
|
|
|
|
/**
|
|
* ib_dealloc_xrcd - Deallocates an XRC domain.
|
|
* @xrcd: The XRC domain to deallocate.
|
|
*/
|
|
int ib_dealloc_xrcd(struct ib_xrcd *xrcd);
|
|
|
|
struct ib_flow *ib_create_flow(struct ib_qp *qp,
|
|
struct ib_flow_attr *flow_attr, int domain);
|
|
int ib_destroy_flow(struct ib_flow *flow_id);
|
|
|
|
static inline int ib_check_mr_access(int flags)
|
|
{
|
|
/*
|
|
* Local write permission is required if remote write or
|
|
* remote atomic permission is also requested.
|
|
*/
|
|
if (flags & (IB_ACCESS_REMOTE_ATOMIC | IB_ACCESS_REMOTE_WRITE) &&
|
|
!(flags & IB_ACCESS_LOCAL_WRITE))
|
|
return -EINVAL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* ib_check_mr_status: lightweight check of MR status.
|
|
* This routine may provide status checks on a selected
|
|
* ib_mr. first use is for signature status check.
|
|
*
|
|
* @mr: A memory region.
|
|
* @check_mask: Bitmask of which checks to perform from
|
|
* ib_mr_status_check enumeration.
|
|
* @mr_status: The container of relevant status checks.
|
|
* failed checks will be indicated in the status bitmask
|
|
* and the relevant info shall be in the error item.
|
|
*/
|
|
int ib_check_mr_status(struct ib_mr *mr, u32 check_mask,
|
|
struct ib_mr_status *mr_status);
|
|
|
|
struct net_device *ib_get_net_dev_by_params(struct ib_device *dev, u8 port,
|
|
u16 pkey, const union ib_gid *gid,
|
|
const struct sockaddr *addr);
|
|
|
|
int ib_map_mr_sg(struct ib_mr *mr,
|
|
struct scatterlist *sg,
|
|
int sg_nents,
|
|
unsigned int page_size);
|
|
|
|
static inline int
|
|
ib_map_mr_sg_zbva(struct ib_mr *mr,
|
|
struct scatterlist *sg,
|
|
int sg_nents,
|
|
unsigned int page_size)
|
|
{
|
|
int n;
|
|
|
|
n = ib_map_mr_sg(mr, sg, sg_nents, page_size);
|
|
mr->iova = 0;
|
|
|
|
return n;
|
|
}
|
|
|
|
int ib_sg_to_pages(struct ib_mr *mr,
|
|
struct scatterlist *sgl,
|
|
int sg_nents,
|
|
int (*set_page)(struct ib_mr *, u64));
|
|
|
|
#endif /* IB_VERBS_H */
|