diff options
Diffstat (limited to '')
| -rw-r--r-- | include/rdma/ib_verbs.h | 1387 |
1 files changed, 724 insertions, 663 deletions
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index 1f779fad3a1e..975d6e9efbcb 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -1,44 +1,18 @@ +/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */ /* * Copyright (c) 2004 Mellanox Technologies Ltd. All rights reserved. * Copyright (c) 2004 Infinicon Corporation. All rights reserved. - * Copyright (c) 2004 Intel Corporation. All rights reserved. + * Copyright (c) 2004, 2020 Intel Corporation. All rights reserved. * Copyright (c) 2004 Topspin Corporation. All rights reserved. * Copyright (c) 2004 Voltaire Corporation. All rights reserved. * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved. * Copyright (c) 2005, 2006, 2007 Cisco Systems. All rights reserved. - * - * This software is available to you under a choice of one of two - * licenses. You may choose to be licensed under the terms of the GNU - * General Public License (GPL) Version 2, available from the file - * COPYING in the main directory of this source tree, or the - * OpenIB.org BSD license below: - * - * Redistribution and use in source and binary forms, with or - * without modification, are permitted provided that the following - * conditions are met: - * - * - Redistributions of source code must retain the above - * copyright notice, this list of conditions and the following - * disclaimer. - * - * - Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following - * disclaimer in the documentation and/or other materials - * provided with the distribution. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS - * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN - * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. */ -#if !defined(IB_VERBS_H) +#ifndef IB_VERBS_H #define IB_VERBS_H +#include <linux/ethtool.h> #include <linux/types.h> #include <linux/device.h> #include <linux/dma-mapping.h> @@ -75,6 +49,9 @@ struct ib_umem_odp; struct ib_uqp_object; struct ib_usrq_object; struct ib_uwq_object; +struct rdma_cm_id; +struct ib_port; +struct hw_stats_device_data; extern struct workqueue_struct *ib_wq; extern struct workqueue_struct *ib_comp_wq; @@ -100,7 +77,8 @@ void ibdev_notice(const struct ib_device *ibdev, const char *format, ...); __printf(2, 3) __cold void ibdev_info(const struct ib_device *ibdev, const char *format, ...); -#if defined(CONFIG_DYNAMIC_DEBUG) +#if defined(CONFIG_DYNAMIC_DEBUG) || \ + (defined(CONFIG_DYNAMIC_DEBUG_CORE) && defined(DYNAMIC_DEBUG_MODULE)) #define ibdev_dbg(__dev, format, args...) \ dynamic_ibdev_dbg(__dev, format, ##args) #else @@ -133,7 +111,8 @@ do { \ #define ibdev_info_ratelimited(ibdev, fmt, ...) \ ibdev_level_ratelimited(ibdev_info, ibdev, fmt, ##__VA_ARGS__) -#if defined(CONFIG_DYNAMIC_DEBUG) +#if defined(CONFIG_DYNAMIC_DEBUG) || \ + (defined(CONFIG_DYNAMIC_DEBUG_CORE) && defined(DYNAMIC_DEBUG_MODULE)) /* descriptor check is first to prevent flooding with "callbacks suppressed" */ #define ibdev_dbg_ratelimited(ibdev, fmt, ...) \ do { \ @@ -162,10 +141,9 @@ union ib_gid { extern union ib_gid zgid; enum ib_gid_type { - /* If link layer is Ethernet, this is RoCE V1 */ - IB_GID_TYPE_IB = 0, - IB_GID_TYPE_ROCE = 0, - IB_GID_TYPE_ROCE_UDP_ENCAP = 1, + IB_GID_TYPE_IB = IB_UVERBS_GID_TYPE_IB, + IB_GID_TYPE_ROCE = IB_UVERBS_GID_TYPE_ROCE_V1, + IB_GID_TYPE_ROCE_UDP_ENCAP = IB_UVERBS_GID_TYPE_ROCE_V2, IB_GID_TYPE_SIZE }; @@ -176,7 +154,7 @@ struct ib_gid_attr { union ib_gid gid; enum ib_gid_type gid_type; u16 index; - u8 port_num; + u32 port_num; }; enum { @@ -204,7 +182,7 @@ rdma_node_get_transport(unsigned int node_type); enum rdma_network_type { RDMA_NETWORK_IB, - RDMA_NETWORK_ROCE_V1 = RDMA_NETWORK_IB, + RDMA_NETWORK_ROCE_V1, RDMA_NETWORK_IPV4, RDMA_NETWORK_IPV6 }; @@ -214,9 +192,10 @@ static inline enum ib_gid_type ib_network_to_gid_type(enum rdma_network_type net if (network_type == RDMA_NETWORK_IPV4 || network_type == RDMA_NETWORK_IPV6) return IB_GID_TYPE_ROCE_UDP_ENCAP; - - /* IB_GID_TYPE_IB same as RDMA_NETWORK_ROCE_V1 */ - return IB_GID_TYPE_IB; + else if (network_type == RDMA_NETWORK_ROCE_V1) + return IB_GID_TYPE_ROCE; + else + return IB_GID_TYPE_IB; } static inline enum rdma_network_type @@ -225,6 +204,9 @@ rdma_gid_attr_network_type(const struct ib_gid_attr *attr) if (attr->gid_type == IB_GID_TYPE_IB) return RDMA_NETWORK_IB; + if (attr->gid_type == IB_GID_TYPE_ROCE) + return RDMA_NETWORK_ROCE_V1; + if (ipv6_addr_v4mapped((struct in6_addr *)&attr->gid)) return RDMA_NETWORK_IPV4; else @@ -238,32 +220,24 @@ enum rdma_link_layer { }; enum ib_device_cap_flags { - IB_DEVICE_RESIZE_MAX_WR = (1 << 0), - IB_DEVICE_BAD_PKEY_CNTR = (1 << 1), - IB_DEVICE_BAD_QKEY_CNTR = (1 << 2), - IB_DEVICE_RAW_MULTI = (1 << 3), - IB_DEVICE_AUTO_PATH_MIG = (1 << 4), - IB_DEVICE_CHANGE_PHY_PORT = (1 << 5), - IB_DEVICE_UD_AV_PORT_ENFORCE = (1 << 6), - IB_DEVICE_CURR_QP_STATE_MOD = (1 << 7), - IB_DEVICE_SHUTDOWN_PORT = (1 << 8), - /* Not in use, former INIT_TYPE = (1 << 9),*/ - IB_DEVICE_PORT_ACTIVE_EVENT = (1 << 10), - IB_DEVICE_SYS_IMAGE_GUID = (1 << 11), - IB_DEVICE_RC_RNR_NAK_GEN = (1 << 12), - IB_DEVICE_SRQ_RESIZE = (1 << 13), - IB_DEVICE_N_NOTIFY_CQ = (1 << 14), - - /* - * This device supports a per-device lkey or stag that can be - * used without performing a memory registration for the local - * memory. Note that ULPs should never check this flag, but - * instead of use the local_dma_lkey flag in the ib_pd structure, - * which will always contain a usable lkey. - */ - IB_DEVICE_LOCAL_DMA_LKEY = (1 << 15), - /* Reserved, old SEND_W_INV = (1 << 16),*/ - IB_DEVICE_MEM_WINDOW = (1 << 17), + IB_DEVICE_RESIZE_MAX_WR = IB_UVERBS_DEVICE_RESIZE_MAX_WR, + IB_DEVICE_BAD_PKEY_CNTR = IB_UVERBS_DEVICE_BAD_PKEY_CNTR, + IB_DEVICE_BAD_QKEY_CNTR = IB_UVERBS_DEVICE_BAD_QKEY_CNTR, + IB_DEVICE_RAW_MULTI = IB_UVERBS_DEVICE_RAW_MULTI, + IB_DEVICE_AUTO_PATH_MIG = IB_UVERBS_DEVICE_AUTO_PATH_MIG, + IB_DEVICE_CHANGE_PHY_PORT = IB_UVERBS_DEVICE_CHANGE_PHY_PORT, + IB_DEVICE_UD_AV_PORT_ENFORCE = IB_UVERBS_DEVICE_UD_AV_PORT_ENFORCE, + IB_DEVICE_CURR_QP_STATE_MOD = IB_UVERBS_DEVICE_CURR_QP_STATE_MOD, + IB_DEVICE_SHUTDOWN_PORT = IB_UVERBS_DEVICE_SHUTDOWN_PORT, + /* IB_DEVICE_INIT_TYPE = IB_UVERBS_DEVICE_INIT_TYPE, (not in use) */ + IB_DEVICE_PORT_ACTIVE_EVENT = IB_UVERBS_DEVICE_PORT_ACTIVE_EVENT, + IB_DEVICE_SYS_IMAGE_GUID = IB_UVERBS_DEVICE_SYS_IMAGE_GUID, + IB_DEVICE_RC_RNR_NAK_GEN = IB_UVERBS_DEVICE_RC_RNR_NAK_GEN, + IB_DEVICE_SRQ_RESIZE = IB_UVERBS_DEVICE_SRQ_RESIZE, + IB_DEVICE_N_NOTIFY_CQ = IB_UVERBS_DEVICE_N_NOTIFY_CQ, + + /* Reserved, old SEND_W_INV = 1 << 16,*/ + IB_DEVICE_MEM_WINDOW = IB_UVERBS_DEVICE_MEM_WINDOW, /* * Devices should set IB_DEVICE_UD_IP_SUM if they support * insertion of UDP and TCP checksum on outgoing UD IPoIB @@ -271,9 +245,8 @@ enum ib_device_cap_flags { * incoming messages. Setting this flag implies that the * IPoIB driver may set NETIF_F_IP_CSUM for datagram mode. */ - IB_DEVICE_UD_IP_CSUM = (1 << 18), - IB_DEVICE_UD_TSO = (1 << 19), - IB_DEVICE_XRC = (1 << 20), + IB_DEVICE_UD_IP_CSUM = IB_UVERBS_DEVICE_UD_IP_CSUM, + IB_DEVICE_XRC = IB_UVERBS_DEVICE_XRC, /* * This device supports the IB "base memory management extension", @@ -284,31 +257,53 @@ enum ib_device_cap_flags { * IB_WR_RDMA_READ_WITH_INV verb for RDMA READs that invalidate the * stag. */ - IB_DEVICE_MEM_MGT_EXTENSIONS = (1 << 21), - IB_DEVICE_BLOCK_MULTICAST_LOOPBACK = (1 << 22), - IB_DEVICE_MEM_WINDOW_TYPE_2A = (1 << 23), - IB_DEVICE_MEM_WINDOW_TYPE_2B = (1 << 24), - IB_DEVICE_RC_IP_CSUM = (1 << 25), + IB_DEVICE_MEM_MGT_EXTENSIONS = IB_UVERBS_DEVICE_MEM_MGT_EXTENSIONS, + IB_DEVICE_MEM_WINDOW_TYPE_2A = IB_UVERBS_DEVICE_MEM_WINDOW_TYPE_2A, + IB_DEVICE_MEM_WINDOW_TYPE_2B = IB_UVERBS_DEVICE_MEM_WINDOW_TYPE_2B, + IB_DEVICE_RC_IP_CSUM = IB_UVERBS_DEVICE_RC_IP_CSUM, /* Deprecated. Please use IB_RAW_PACKET_CAP_IP_CSUM. */ - IB_DEVICE_RAW_IP_CSUM = (1 << 26), - /* - * Devices should set IB_DEVICE_CROSS_CHANNEL if they - * support execution of WQEs that involve synchronization - * of I/O operations with single completion queue managed - * by hardware. - */ - IB_DEVICE_CROSS_CHANNEL = (1 << 27), - IB_DEVICE_MANAGED_FLOW_STEERING = (1 << 29), - IB_DEVICE_INTEGRITY_HANDOVER = (1 << 30), - IB_DEVICE_ON_DEMAND_PAGING = (1ULL << 31), - IB_DEVICE_SG_GAPS_REG = (1ULL << 32), - IB_DEVICE_VIRTUAL_FUNCTION = (1ULL << 33), + IB_DEVICE_RAW_IP_CSUM = IB_UVERBS_DEVICE_RAW_IP_CSUM, + IB_DEVICE_MANAGED_FLOW_STEERING = + IB_UVERBS_DEVICE_MANAGED_FLOW_STEERING, /* Deprecated. Please use IB_RAW_PACKET_CAP_SCATTER_FCS. */ - IB_DEVICE_RAW_SCATTER_FCS = (1ULL << 34), - IB_DEVICE_RDMA_NETDEV_OPA_VNIC = (1ULL << 35), + IB_DEVICE_RAW_SCATTER_FCS = IB_UVERBS_DEVICE_RAW_SCATTER_FCS, /* The device supports padding incoming writes to cacheline. */ - IB_DEVICE_PCI_WRITE_END_PADDING = (1ULL << 36), - IB_DEVICE_ALLOW_USER_UNREG = (1ULL << 37), + IB_DEVICE_PCI_WRITE_END_PADDING = + IB_UVERBS_DEVICE_PCI_WRITE_END_PADDING, +}; + +enum ib_kernel_cap_flags { + /* + * This device supports a per-device lkey or stag that can be + * used without performing a memory registration for the local + * memory. Note that ULPs should never check this flag, but + * instead of use the local_dma_lkey flag in the ib_pd structure, + * which will always contain a usable lkey. + */ + IBK_LOCAL_DMA_LKEY = 1 << 0, + /* IB_QP_CREATE_INTEGRITY_EN is supported to implement T10-PI */ + IBK_INTEGRITY_HANDOVER = 1 << 1, + /* IB_ACCESS_ON_DEMAND is supported during reg_user_mr() */ + IBK_ON_DEMAND_PAGING = 1 << 2, + /* IB_MR_TYPE_SG_GAPS is supported */ + IBK_SG_GAPS_REG = 1 << 3, + /* Driver supports RDMA_NLDEV_CMD_DELLINK */ + IBK_ALLOW_USER_UNREG = 1 << 4, + + /* ipoib will use IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK */ + IBK_BLOCK_MULTICAST_LOOPBACK = 1 << 5, + /* iopib will use IB_QP_CREATE_IPOIB_UD_LSO for its QPs */ + IBK_UD_TSO = 1 << 6, + /* iopib will use the device ops: + * get_vf_config + * get_vf_guid + * get_vf_stats + * set_vf_guid + * set_vf_link_state + */ + IBK_VIRTUAL_FUNCTION = 1 << 7, + /* ipoib will use IB_QP_CREATE_NETDEV_USE for its QPs */ + IBK_RDMA_NETDEV_OPA = 1 << 8, }; enum ib_atomic_cap { @@ -407,6 +402,7 @@ struct ib_device_attr { int max_qp; int max_qp_wr; u64 device_cap_flags; + u64 kernel_cap_flags; int max_send_sge; int max_recv_sge; int max_sge_rd; @@ -430,8 +426,6 @@ struct ib_device_attr { int max_mcast_qp_attach; int max_total_mcast_qp_attach; int max_ah; - int max_fmr; - int max_map_per_fmr; int max_srq; int max_srq_wr; int max_srq_sge; @@ -462,6 +456,11 @@ enum ib_mtu { IB_MTU_4096 = 5 }; +enum opa_mtu { + OPA_MTU_8192 = 6, + OPA_MTU_10240 = 7 +}; + static inline int ib_mtu_enum_to_int(enum ib_mtu mtu) { switch (mtu) { @@ -488,6 +487,28 @@ static inline enum ib_mtu ib_mtu_int_to_enum(int mtu) return IB_MTU_256; } +static inline int opa_mtu_enum_to_int(enum opa_mtu mtu) +{ + switch (mtu) { + case OPA_MTU_8192: + return 8192; + case OPA_MTU_10240: + return 10240; + default: + return(ib_mtu_enum_to_int((enum ib_mtu)mtu)); + } +} + +static inline enum opa_mtu opa_mtu_int_to_enum(int mtu) +{ + if (mtu >= 10240) + return OPA_MTU_10240; + else if (mtu >= 8192) + return OPA_MTU_8192; + else + return ((enum opa_mtu)ib_mtu_int_to_enum(mtu)); +} + enum ib_port_state { IB_PORT_NOP = 0, IB_PORT_DOWN = 1, @@ -534,21 +555,40 @@ enum ib_port_speed { IB_SPEED_FDR10 = 8, IB_SPEED_FDR = 16, IB_SPEED_EDR = 32, - IB_SPEED_HDR = 64 + IB_SPEED_HDR = 64, + IB_SPEED_NDR = 128, +}; + +enum ib_stat_flag { + IB_STAT_FLAG_OPTIONAL = 1 << 0, +}; + +/** + * struct rdma_stat_desc + * @name - The name of the counter + * @flags - Flags of the counter; For example, IB_STAT_FLAG_OPTIONAL + * @priv - Driver private information; Core code should not use + */ +struct rdma_stat_desc { + const char *name; + unsigned int flags; + const void *priv; }; /** * struct rdma_hw_stats * @lock - Mutex to protect parallel write access to lifespan and values - * of counters, which are 64bits and not guaranteeed to be written + * of counters, which are 64bits and not guaranteed to be written * atomicaly on 32bits systems. * @timestamp - Used by the core code to track when the last update was * @lifespan - Used by the core code to determine how old the counters * should be before being updated again. Stored in jiffies, defaults * to 10 milliseconds, drivers can override the default be specifying * their own value during their allocation routine. - * @name - Array of pointers to static names used for the counters in - * directory. + * @descs - Array of pointers to static descriptors used for the counters + * in directory. + * @is_disabled - A bitmap to indicate each counter is currently disabled + * or not. * @num_counters - How many hardware counters there are. If name is * shorter than this number, a kernel oops will result. Driver authors * are encouraged to leave BUILD_BUG_ON(ARRAY_SIZE(@name) < num_counters) @@ -560,36 +600,19 @@ struct rdma_hw_stats { struct mutex lock; /* Protect lifespan and values[] */ unsigned long timestamp; unsigned long lifespan; - const char * const *names; + const struct rdma_stat_desc *descs; + unsigned long *is_disabled; int num_counters; u64 value[]; }; #define RDMA_HW_STATS_DEFAULT_LIFESPAN 10 -/** - * rdma_alloc_hw_stats_struct - Helper function to allocate dynamic struct - * for drivers. - * @names - Array of static const char * - * @num_counters - How many elements in array - * @lifespan - How many milliseconds between updates - */ -static inline struct rdma_hw_stats *rdma_alloc_hw_stats_struct( - const char * const *names, int num_counters, - unsigned long lifespan) -{ - struct rdma_hw_stats *stats; - stats = kzalloc(sizeof(*stats) + num_counters * sizeof(u64), - GFP_KERNEL); - if (!stats) - return NULL; - stats->names = names; - stats->num_counters = num_counters; - stats->lifespan = msecs_to_jiffies(lifespan); - - return stats; -} +struct rdma_hw_stats *rdma_alloc_hw_stats_struct( + const struct rdma_stat_desc *descs, int num_counters, + unsigned long lifespan); +void rdma_free_hw_stats_struct(struct rdma_hw_stats *stats); /* Define bits for the various functionality this port needs to be supported by * the core. @@ -651,6 +674,7 @@ struct ib_port_attr { enum ib_port_state state; enum ib_mtu max_mtu; enum ib_mtu active_mtu; + u32 phys_mtu; int gid_tbl_len; unsigned int ip_gids:1; /* This is the value from PortInfo CapabilityMask, defined by IBA */ @@ -667,7 +691,7 @@ struct ib_port_attr { u8 subnet_timeout; u8 init_type_reply; u8 active_width; - u8 active_speed; + u16 active_speed; u8 phys_state; u16 port_cap_flags2; }; @@ -729,7 +753,7 @@ struct ib_event { struct ib_qp *qp; struct ib_srq *srq; struct ib_wq *wq; - u8 port_num; + u32 port_num; } element; enum ib_event_type event; }; @@ -880,6 +904,12 @@ struct ib_mr_status { */ __attribute_const__ enum ib_rate mult_to_ib_rate(int mult); +struct rdma_ah_init_attr { + struct rdma_ah_attr *ah_attr; + u32 flags; + struct net_device *xmit_slave; +}; + enum rdma_ah_attr_type { RDMA_AH_ATTR_TYPE_UNDEFINED, RDMA_AH_ATTR_TYPE_IB, @@ -906,7 +936,7 @@ struct rdma_ah_attr { struct ib_global_route grh; u8 sl; u8 static_rate; - u8 port_num; + u32 port_num; u8 ah_flags; enum rdma_ah_attr_type type; union { @@ -944,13 +974,14 @@ enum ib_wc_status { 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_LSO, - IB_WC_LOCAL_INV, + IB_WC_SEND = IB_UVERBS_WC_SEND, + IB_WC_RDMA_WRITE = IB_UVERBS_WC_RDMA_WRITE, + IB_WC_RDMA_READ = IB_UVERBS_WC_RDMA_READ, + IB_WC_COMP_SWAP = IB_UVERBS_WC_COMP_SWAP, + IB_WC_FETCH_ADD = IB_UVERBS_WC_FETCH_ADD, + IB_WC_BIND_MW = IB_UVERBS_WC_BIND_MW, + IB_WC_LOCAL_INV = IB_UVERBS_WC_LOCAL_INV, + IB_WC_LSO = IB_UVERBS_WC_TSO, IB_WC_REG_MR, IB_WC_MASKED_COMP_SWAP, IB_WC_MASKED_FETCH_ADD, @@ -992,7 +1023,7 @@ struct ib_wc { u16 pkey_index; u8 sl; u8 dlid_path_bits; - u8 port_num; /* valid only for DR SMPs on switches */ + u32 port_num; /* valid only for DR SMPs on switches */ u8 smac[ETH_ALEN]; u16 vlan_id; u8 network_hdr_type; @@ -1006,9 +1037,9 @@ enum ib_cq_notify_flags { }; enum ib_srq_type { - IB_SRQT_BASIC, - IB_SRQT_XRC, - IB_SRQT_TM, + IB_SRQT_BASIC = IB_UVERBS_SRQT_BASIC, + IB_SRQT_XRC = IB_UVERBS_SRQT_XRC, + IB_SRQT_TM = IB_UVERBS_SRQT_TM, }; static inline bool ib_srq_has_cq(enum ib_srq_type srq_type) @@ -1077,16 +1108,16 @@ enum ib_qp_type { IB_QPT_SMI, IB_QPT_GSI, - IB_QPT_RC, - IB_QPT_UC, - IB_QPT_UD, + IB_QPT_RC = IB_UVERBS_QPT_RC, + IB_QPT_UC = IB_UVERBS_QPT_UC, + IB_QPT_UD = IB_UVERBS_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_RAW_PACKET = IB_UVERBS_QPT_RAW_PACKET, + IB_QPT_XRC_INI = IB_UVERBS_QPT_XRC_INI, + IB_QPT_XRC_TGT = IB_UVERBS_QPT_XRC_TGT, IB_QPT_MAX, - IB_QPT_DRIVER = 0xFF, + IB_QPT_DRIVER = IB_UVERBS_QPT_DRIVER, /* 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 @@ -1105,17 +1136,21 @@ enum ib_qp_type { enum ib_qp_create_flags { IB_QP_CREATE_IPOIB_UD_LSO = 1 << 0, - IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK = 1 << 1, + IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK = + IB_UVERBS_QP_CREATE_BLOCK_MULTICAST_LOOPBACK, IB_QP_CREATE_CROSS_CHANNEL = 1 << 2, IB_QP_CREATE_MANAGED_SEND = 1 << 3, IB_QP_CREATE_MANAGED_RECV = 1 << 4, IB_QP_CREATE_NETIF_QP = 1 << 5, IB_QP_CREATE_INTEGRITY_EN = 1 << 6, - /* FREE = 1 << 7, */ - IB_QP_CREATE_SCATTER_FCS = 1 << 8, - IB_QP_CREATE_CVLAN_STRIPPING = 1 << 9, + IB_QP_CREATE_NETDEV_USE = 1 << 7, + IB_QP_CREATE_SCATTER_FCS = + IB_UVERBS_QP_CREATE_SCATTER_FCS, + IB_QP_CREATE_CVLAN_STRIPPING = + IB_UVERBS_QP_CREATE_CVLAN_STRIPPING, IB_QP_CREATE_SOURCE_QPN = 1 << 10, - IB_QP_CREATE_PCI_WRITE_END_PADDING = 1 << 11, + IB_QP_CREATE_PCI_WRITE_END_PADDING = + IB_UVERBS_QP_CREATE_PCI_WRITE_END_PADDING, /* reserve bits 26-31 for low level drivers' internal use */ IB_QP_CREATE_RESERVED_START = 1 << 26, IB_QP_CREATE_RESERVED_END = 1 << 31, @@ -1143,7 +1178,7 @@ struct ib_qp_init_attr { /* * Only needed for special QP types, or when using the RW API. */ - u8 port_num; + u32 port_num; struct ib_rwq_ind_table *rwq_ind_tbl; u32 source_qpn; }; @@ -1217,6 +1252,8 @@ enum ib_qp_attr_mask { IB_QP_RESERVED3 = (1<<23), IB_QP_RESERVED4 = (1<<24), IB_QP_RATE_LIMIT = (1<<25), + + IB_QP_ATTR_STANDARD_BITS = GENMASK(20, 0), }; enum ib_qp_state { @@ -1260,13 +1297,14 @@ struct ib_qp_attr { u8 max_rd_atomic; u8 max_dest_rd_atomic; u8 min_rnr_timer; - u8 port_num; + u32 port_num; u8 timeout; u8 retry_cnt; u8 rnr_retry; - u8 alt_port_num; + u32 alt_port_num; u8 alt_timeout; u32 rate_limit; + struct net_device *xmit_slave; }; enum ib_wr_opcode { @@ -1278,6 +1316,7 @@ enum ib_wr_opcode { IB_WR_RDMA_READ = IB_UVERBS_WR_RDMA_READ, IB_WR_ATOMIC_CMP_AND_SWP = IB_UVERBS_WR_ATOMIC_CMP_AND_SWP, IB_WR_ATOMIC_FETCH_AND_ADD = IB_UVERBS_WR_ATOMIC_FETCH_AND_ADD, + IB_WR_BIND_MW = IB_UVERBS_WR_BIND_MW, IB_WR_LSO = IB_UVERBS_WR_TSO, IB_WR_SEND_WITH_INV = IB_UVERBS_WR_SEND_WITH_INV, IB_WR_RDMA_READ_WITH_INV = IB_UVERBS_WR_RDMA_READ_WITH_INV, @@ -1379,7 +1418,7 @@ struct ib_ud_wr { u32 remote_qpn; u32 remote_qkey; u16 pkey_index; /* valid for GSI only */ - u8 port_num; /* valid for DR SMPs on switch only */ + u32 port_num; /* valid for DR SMPs on switch only */ }; static inline const struct ib_ud_wr *ud_wr(const struct ib_send_wr *wr) @@ -1436,12 +1475,6 @@ enum ib_mr_rereg_flags { IB_MR_REREG_SUPPORTED = ((IB_MR_REREG_ACCESS << 1) - 1) }; -struct ib_fmr_attr { - int max_pages; - int max_maps; - u8 page_shift; -}; - struct ib_umem; enum rdma_remove_reason { @@ -1456,6 +1489,8 @@ enum rdma_remove_reason { RDMA_REMOVE_DRIVER_REMOVE, /* uobj is being cleaned-up before being committed */ RDMA_REMOVE_ABORT, + /* The driver failed to destroy the uobject and is being disconnected */ + RDMA_REMOVE_DRIVER_FAILURE, }; struct ib_rdmacg_object { @@ -1467,14 +1502,6 @@ struct ib_rdmacg_object { struct ib_ucontext { struct ib_device *device; struct ib_uverbs_file *ufile; - /* - * 'closing' can be read by the driver only during a destroy callback, - * it is set when we are closing the file descriptor and indicates - * that mm_sem may be locked. - */ - bool closing; - - bool cleanup_retryable; struct ib_rdmacg_object cg_obj; /* @@ -1528,9 +1555,8 @@ 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 rw_semaphore tgt_qps_rwsem; + struct xarray tgt_qps; }; struct ib_ah { @@ -1544,10 +1570,12 @@ struct ib_ah { typedef void (*ib_comp_handler)(struct ib_cq *cq, void *cq_context); enum ib_poll_context { - IB_POLL_DIRECT, /* caller context, no hw completions */ IB_POLL_SOFTIRQ, /* poll from softirq context */ IB_POLL_WORKQUEUE, /* poll from workqueue */ IB_POLL_UNBOUND_WORKQUEUE, /* poll from unbound workqueue */ + IB_POLL_LAST_POOL_TYPE = IB_POLL_UNBOUND_WORKQUEUE, + + IB_POLL_DIRECT, /* caller context, no hw completions */ }; struct ib_cq { @@ -1557,9 +1585,11 @@ struct ib_cq { void (*event_handler)(struct ib_event *, void *); void *cq_context; int cqe; + unsigned int cqe_used; atomic_t usecnt; /* count number of work queues */ enum ib_poll_context poll_ctx; struct ib_wc *wc; + struct list_head pool_entry; union { struct irq_poll iop; struct work_struct work; @@ -1569,7 +1599,9 @@ struct ib_cq { /* updated only by trace points */ ktime_t timestamp; - bool interrupt; + u8 interrupt:1; + u8 shared:1; + unsigned int comp_vector; /* * Implementation details of the RDMA core, don't use in drivers: @@ -1595,26 +1627,35 @@ struct ib_srq { } xrc; }; } ext; + + /* + * Implementation details of the RDMA core, don't use in drivers: + */ + struct rdma_restrack_entry res; }; enum ib_raw_packet_caps { - /* Strip cvlan from incoming packet and report it in the matching work + /* + * Strip cvlan from incoming packet and report it in the matching work * completion is supported. */ - IB_RAW_PACKET_CAP_CVLAN_STRIPPING = (1 << 0), - /* Scatter FCS field of an incoming packet to host memory is supported. + IB_RAW_PACKET_CAP_CVLAN_STRIPPING = + IB_UVERBS_RAW_PACKET_CAP_CVLAN_STRIPPING, + /* + * Scatter FCS field of an incoming packet to host memory is supported. */ - IB_RAW_PACKET_CAP_SCATTER_FCS = (1 << 1), + IB_RAW_PACKET_CAP_SCATTER_FCS = IB_UVERBS_RAW_PACKET_CAP_SCATTER_FCS, /* Checksum offloads are supported (for both send and receive). */ - IB_RAW_PACKET_CAP_IP_CSUM = (1 << 2), - /* When a packet is received for an RQ with no receive WQEs, the + IB_RAW_PACKET_CAP_IP_CSUM = IB_UVERBS_RAW_PACKET_CAP_IP_CSUM, + /* + * When a packet is received for an RQ with no receive WQEs, the * packet processing is delayed. */ - IB_RAW_PACKET_CAP_DELAY_DROP = (1 << 3), + IB_RAW_PACKET_CAP_DELAY_DROP = IB_UVERBS_RAW_PACKET_CAP_DELAY_DROP, }; enum ib_wq_type { - IB_WQT_RQ + IB_WQT_RQ = IB_UVERBS_WQT_RQ, }; enum ib_wq_state { @@ -1637,10 +1678,11 @@ struct ib_wq { }; enum ib_wq_flags { - IB_WQ_FLAGS_CVLAN_STRIPPING = 1 << 0, - IB_WQ_FLAGS_SCATTER_FCS = 1 << 1, - IB_WQ_FLAGS_DELAY_DROP = 1 << 2, - IB_WQ_FLAGS_PCI_WRITE_END_PADDING = 1 << 3, + IB_WQ_FLAGS_CVLAN_STRIPPING = IB_UVERBS_WQ_FLAGS_CVLAN_STRIPPING, + IB_WQ_FLAGS_SCATTER_FCS = IB_UVERBS_WQ_FLAGS_SCATTER_FCS, + IB_WQ_FLAGS_DELAY_DROP = IB_UVERBS_WQ_FLAGS_DELAY_DROP, + IB_WQ_FLAGS_PCI_WRITE_END_PADDING = + IB_UVERBS_WQ_FLAGS_PCI_WRITE_END_PADDING, }; struct ib_wq_init_attr { @@ -1692,7 +1734,7 @@ struct ib_qp_security; struct ib_port_pkey { enum port_pkey_state state; u16 pkey_index; - u8 port_num; + u32 port_num; struct list_head qp_list; struct list_head to_error_list; struct ib_qp_security *sec; @@ -1753,7 +1795,7 @@ struct ib_qp { enum ib_qp_type qp_type; struct ib_rwq_ind_table *rwq_ind_tbl; struct ib_qp_security *qp_sec; - u8 port; + u32 port; bool integrity_en; /* @@ -1804,14 +1846,6 @@ struct ib_mw { 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 */ @@ -1853,17 +1887,6 @@ enum ib_flow_spec_type { #define IB_FLOW_SPEC_LAYER_MASK 0xF0 #define IB_FLOW_SPEC_SUPPORT_LAYERS 10 -/* 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 */ -}; - enum ib_flow_flags { IB_FLOW_ATTR_FLAGS_DONT_TRAP = 1UL << 1, /* Continue match, no steal */ IB_FLOW_ATTR_FLAGS_EGRESS = 1UL << 2, /* Egress flow */ @@ -1876,7 +1899,7 @@ struct ib_flow_eth_filter { __be16 ether_type; __be16 vlan_tag; /* Must be last */ - u8 real_sz[0]; + u8 real_sz[]; }; struct ib_flow_spec_eth { @@ -1890,7 +1913,7 @@ struct ib_flow_ib_filter { __be16 dlid; __u8 sl; /* Must be last */ - u8 real_sz[0]; + u8 real_sz[]; }; struct ib_flow_spec_ib { @@ -1915,7 +1938,7 @@ struct ib_flow_ipv4_filter { u8 ttl; u8 flags; /* Must be last */ - u8 real_sz[0]; + u8 real_sz[]; }; struct ib_flow_spec_ipv4 { @@ -1933,7 +1956,7 @@ struct ib_flow_ipv6_filter { u8 traffic_class; u8 hop_limit; /* Must be last */ - u8 real_sz[0]; + u8 real_sz[]; }; struct ib_flow_spec_ipv6 { @@ -1947,7 +1970,7 @@ struct ib_flow_tcp_udp_filter { __be16 dst_port; __be16 src_port; /* Must be last */ - u8 real_sz[0]; + u8 real_sz[]; }; struct ib_flow_spec_tcp_udp { @@ -1959,7 +1982,7 @@ struct ib_flow_spec_tcp_udp { struct ib_flow_tunnel_filter { __be32 tunnel_id; - u8 real_sz[0]; + u8 real_sz[]; }; /* ib_flow_spec_tunnel describes the Vxlan tunnel @@ -1976,7 +1999,7 @@ struct ib_flow_esp_filter { __be32 spi; __be32 seq; /* Must be last */ - u8 real_sz[0]; + u8 real_sz[]; }; struct ib_flow_spec_esp { @@ -1991,7 +2014,7 @@ struct ib_flow_gre_filter { __be16 protocol; __be32 key; /* Must be last */ - u8 real_sz[0]; + u8 real_sz[]; }; struct ib_flow_spec_gre { @@ -2004,7 +2027,7 @@ struct ib_flow_spec_gre { struct ib_flow_mpls_filter { __be32 tag; /* Must be last */ - u8 real_sz[0]; + u8 real_sz[]; }; struct ib_flow_spec_mpls { @@ -2068,7 +2091,7 @@ struct ib_flow_attr { u16 priority; u32 flags; u8 num_of_specs; - u8 port; + u32 port; union ib_flow_spec flows[]; }; @@ -2137,7 +2160,6 @@ struct ib_flow_action { }; struct ib_mad; -struct ib_grh; enum ib_process_mad_flags { IB_MAD_IGNORE_MKEY = 1, @@ -2173,15 +2195,17 @@ struct ib_port_data { struct ib_port_immutable immutable; spinlock_t pkey_list_lock; + + spinlock_t netdev_lock; + struct list_head pkey_list; struct ib_port_cache cache; - spinlock_t netdev_lock; struct net_device __rcu *netdev; struct hlist_node ndev_hash_link; struct rdma_port_counter port_counter; - struct rdma_hw_stats *hw_stats; + struct ib_port *sysfs; }; /* rdma netdev type - specifies protocol type */ @@ -2197,7 +2221,8 @@ enum rdma_netdev_t { struct rdma_netdev { void *clnt_priv; struct ib_device *hca; - u8 port_num; + u32 port_num; + int mtu; /* * cleanup function must be specified. @@ -2217,6 +2242,8 @@ struct rdma_netdev { int set_qkey, u32 qkey); int (*detach_mcast)(struct net_device *dev, struct ib_device *hca, union ib_gid *gid, u16 mlid); + /* timeout */ + void (*tx_timeout)(struct net_device *dev, unsigned int txqueue); }; struct rdma_netdev_alloc_params { @@ -2225,13 +2252,14 @@ struct rdma_netdev_alloc_params { unsigned int rxqs; void *param; - int (*initialize_rdma_netdev)(struct ib_device *device, u8 port_num, + int (*initialize_rdma_netdev)(struct ib_device *device, u32 port_num, struct net_device *netdev, void *param); }; struct ib_odp_counters { atomic64_t faults; atomic64_t invalidations; + atomic64_t prefetch; }; struct ib_counters { @@ -2259,8 +2287,13 @@ struct iw_cm_conn_param; !__same_type(((struct drv_struct *)NULL)->member, \ struct ib_struct))) -#define rdma_zalloc_drv_obj_gfp(ib_dev, ib_type, gfp) \ - ((struct ib_type *)kzalloc(ib_dev->ops.size_##ib_type, gfp)) +#define rdma_zalloc_drv_obj_gfp(ib_dev, ib_type, gfp) \ + ((struct ib_type *)rdma_zalloc_obj(ib_dev, ib_dev->ops.size_##ib_type, \ + gfp, false)) + +#define rdma_zalloc_drv_obj_numa(ib_dev, ib_type) \ + ((struct ib_type *)rdma_zalloc_obj(ib_dev, ib_dev->ops.size_##ib_type, \ + GFP_KERNEL, true)) #define rdma_zalloc_drv_obj(ib_dev, ib_type) \ rdma_zalloc_drv_obj_gfp(ib_dev, ib_type, GFP_KERNEL) @@ -2293,6 +2326,14 @@ struct ib_device_ops { u32 uverbs_abi_ver; unsigned int uverbs_no_driver_id_binding:1; + /* + * NOTE: New drivers should not make use of device_group; instead new + * device parameter should be exposed via netlink command. This + * mechanism exists only for existing drivers. + */ + const struct attribute_group *device_group; + const struct attribute_group **port_groups; + int (*post_send)(struct ib_qp *qp, const struct ib_send_wr *send_wr, const struct ib_send_wr **bad_send_wr); int (*post_recv)(struct ib_qp *qp, const struct ib_recv_wr *recv_wr, @@ -2302,12 +2343,11 @@ struct ib_device_ops { 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); int (*post_srq_recv)(struct ib_srq *srq, const struct ib_recv_wr *recv_wr, const struct ib_recv_wr **bad_recv_wr); int (*process_mad)(struct ib_device *device, int process_mad_flags, - u8 port_num, const struct ib_wc *in_wc, + u32 port_num, const struct ib_wc *in_wc, const struct ib_grh *in_grh, const struct ib_mad *in_mad, struct ib_mad *out_mad, size_t *out_mad_size, u16 *out_mad_pkey_index); @@ -2319,9 +2359,9 @@ struct ib_device_ops { void (*get_dev_fw_str)(struct ib_device *device, char *str); const struct cpumask *(*get_vector_affinity)(struct ib_device *ibdev, int comp_vector); - int (*query_port)(struct ib_device *device, u8 port_num, + int (*query_port)(struct ib_device *device, u32 port_num, struct ib_port_attr *port_attr); - int (*modify_port)(struct ib_device *device, u8 port_num, + int (*modify_port)(struct ib_device *device, u32 port_num, int port_modify_mask, struct ib_port_modify *port_modify); /** @@ -2330,10 +2370,10 @@ struct ib_device_ops { * structure to avoid cache line misses when accessing struct ib_device * in fast paths. */ - int (*get_port_immutable)(struct ib_device *device, u8 port_num, + int (*get_port_immutable)(struct ib_device *device, u32 port_num, struct ib_port_immutable *immutable); enum rdma_link_layer (*get_link_layer)(struct ib_device *device, - u8 port_num); + u32 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 @@ -2342,7 +2382,8 @@ struct ib_device_ops { * that this function returns NULL before the net device has finished * NETDEV_UNREGISTER state. */ - struct net_device *(*get_netdev)(struct ib_device *device, u8 port_num); + struct net_device *(*get_netdev)(struct ib_device *device, + u32 port_num); /** * rdma netdev operation * @@ -2350,11 +2391,11 @@ struct ib_device_ops { * must return -EOPNOTSUPP if it doesn't support the specified type. */ struct net_device *(*alloc_rdma_netdev)( - struct ib_device *device, u8 port_num, enum rdma_netdev_t type, + struct ib_device *device, u32 port_num, enum rdma_netdev_t type, const char *name, unsigned char name_assign_type, void (*setup)(struct net_device *)); - int (*rdma_netdev_get_params)(struct ib_device *device, u8 port_num, + int (*rdma_netdev_get_params)(struct ib_device *device, u32 port_num, enum rdma_netdev_t type, struct rdma_netdev_alloc_params *params); /** @@ -2362,7 +2403,7 @@ struct ib_device_ops { * link layer is either IB or iWarp. It is no-op if @port_num port * is RoCE link layer. */ - int (*query_gid)(struct ib_device *device, u8 port_num, int index, + int (*query_gid)(struct ib_device *device, u32 port_num, int index, union ib_gid *gid); /** * When calling add_gid, the HW vendor's driver should add the gid @@ -2387,7 +2428,7 @@ struct ib_device_ops { * This function is only called when roce_gid_table is used. */ int (*del_gid)(const struct ib_gid_attr *attr, void **context); - int (*query_pkey)(struct ib_device *device, u8 port_num, u16 index, + int (*query_pkey)(struct ib_device *device, u32 port_num, u16 index, u16 *pkey); int (*alloc_ucontext)(struct ib_ucontext *context, struct ib_udata *udata); @@ -2402,12 +2443,14 @@ struct ib_device_ops { void (*mmap_free)(struct rdma_user_mmap_entry *entry); void (*disassociate_ucontext)(struct ib_ucontext *ibcontext); int (*alloc_pd)(struct ib_pd *pd, struct ib_udata *udata); - void (*dealloc_pd)(struct ib_pd *pd, struct ib_udata *udata); - int (*create_ah)(struct ib_ah *ah, struct rdma_ah_attr *ah_attr, - u32 flags, struct ib_udata *udata); + int (*dealloc_pd)(struct ib_pd *pd, struct ib_udata *udata); + int (*create_ah)(struct ib_ah *ah, struct rdma_ah_init_attr *attr, + struct ib_udata *udata); + int (*create_user_ah)(struct ib_ah *ah, struct rdma_ah_init_attr *attr, + struct ib_udata *udata); int (*modify_ah)(struct ib_ah *ah, struct rdma_ah_attr *ah_attr); int (*query_ah)(struct ib_ah *ah, struct rdma_ah_attr *ah_attr); - void (*destroy_ah)(struct ib_ah *ah, u32 flags); + int (*destroy_ah)(struct ib_ah *ah, u32 flags); int (*create_srq)(struct ib_srq *srq, struct ib_srq_init_attr *srq_init_attr, struct ib_udata *udata); @@ -2415,10 +2458,9 @@ struct ib_device_ops { 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); - void (*destroy_srq)(struct ib_srq *srq, struct ib_udata *udata); - struct ib_qp *(*create_qp)(struct ib_pd *pd, - struct ib_qp_init_attr *qp_init_attr, - struct ib_udata *udata); + int (*destroy_srq)(struct ib_srq *srq, struct ib_udata *udata); + int (*create_qp)(struct ib_qp *qp, 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, @@ -2427,18 +2469,23 @@ struct ib_device_ops { int (*create_cq)(struct ib_cq *cq, const struct ib_cq_init_attr *attr, struct ib_udata *udata); int (*modify_cq)(struct ib_cq *cq, u16 cq_count, u16 cq_period); - void (*destroy_cq)(struct ib_cq *cq, struct ib_udata *udata); + int (*destroy_cq)(struct ib_cq *cq, struct ib_udata *udata); int (*resize_cq)(struct ib_cq *cq, int cqe, struct ib_udata *udata); struct ib_mr *(*get_dma_mr)(struct ib_pd *pd, int mr_access_flags); 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); + struct ib_mr *(*reg_user_mr_dmabuf)(struct ib_pd *pd, u64 offset, + u64 length, u64 virt_addr, int fd, + int mr_access_flags, + struct ib_udata *udata); + struct ib_mr *(*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 (*dereg_mr)(struct ib_mr *mr, struct ib_udata *udata); struct ib_mr *(*alloc_mr)(struct ib_pd *pd, enum ib_mr_type mr_type, - u32 max_num_sg, struct ib_udata *udata); + u32 max_num_sg); struct ib_mr *(*alloc_mr_integrity)(struct ib_pd *pd, u32 max_num_data_sg, u32 max_num_meta_sg); @@ -2446,58 +2493,49 @@ struct ib_device_ops { enum ib_uverbs_advise_mr_advice advice, u32 flags, struct ib_sge *sg_list, u32 num_sge, struct uverbs_attr_bundle *attrs); + + /* + * Kernel users should universally support relaxed ordering (RO), as + * they are designed to read data only after observing the CQE and use + * the DMA API correctly. + * + * Some drivers implicitly enable RO if platform supports it. + */ int (*map_mr_sg)(struct ib_mr *mr, struct scatterlist *sg, int sg_nents, unsigned int *sg_offset); int (*check_mr_status)(struct ib_mr *mr, u32 check_mask, struct ib_mr_status *mr_status); - struct ib_mw *(*alloc_mw)(struct ib_pd *pd, enum ib_mw_type type, - struct ib_udata *udata); + int (*alloc_mw)(struct ib_mw *mw, struct ib_udata *udata); 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); - struct ib_xrcd *(*alloc_xrcd)(struct ib_device *device, - struct ib_udata *udata); + int (*alloc_xrcd)(struct ib_xrcd *xrcd, struct ib_udata *udata); int (*dealloc_xrcd)(struct ib_xrcd *xrcd, struct ib_udata *udata); struct ib_flow *(*create_flow)(struct ib_qp *qp, struct ib_flow_attr *flow_attr, - int domain, struct ib_udata *udata); + struct ib_udata *udata); int (*destroy_flow)(struct ib_flow *flow_id); - struct ib_flow_action *(*create_flow_action_esp)( - struct ib_device *device, - const struct ib_flow_action_attrs_esp *attr, - struct uverbs_attr_bundle *attrs); int (*destroy_flow_action)(struct ib_flow_action *action); - int (*modify_flow_action_esp)( - struct ib_flow_action *action, - const struct ib_flow_action_attrs_esp *attr, - struct uverbs_attr_bundle *attrs); - int (*set_vf_link_state)(struct ib_device *device, int vf, u8 port, + int (*set_vf_link_state)(struct ib_device *device, int vf, u32 port, int state); - int (*get_vf_config)(struct ib_device *device, int vf, u8 port, + int (*get_vf_config)(struct ib_device *device, int vf, u32 port, struct ifla_vf_info *ivf); - int (*get_vf_stats)(struct ib_device *device, int vf, u8 port, + int (*get_vf_stats)(struct ib_device *device, int vf, u32 port, struct ifla_vf_stats *stats); - int (*get_vf_guid)(struct ib_device *device, int vf, u8 port, + int (*get_vf_guid)(struct ib_device *device, int vf, u32 port, struct ifla_vf_guid *node_guid, struct ifla_vf_guid *port_guid); - int (*set_vf_guid)(struct ib_device *device, int vf, u8 port, u64 guid, + int (*set_vf_guid)(struct ib_device *device, int vf, u32 port, u64 guid, int type); struct ib_wq *(*create_wq)(struct ib_pd *pd, struct ib_wq_init_attr *init_attr, struct ib_udata *udata); - void (*destroy_wq)(struct ib_wq *wq, struct ib_udata *udata); + int (*destroy_wq)(struct ib_wq *wq, struct ib_udata *udata); int (*modify_wq)(struct ib_wq *wq, struct ib_wq_attr *attr, u32 wq_attr_mask, struct ib_udata *udata); - struct ib_rwq_ind_table *(*create_rwq_ind_table)( - struct ib_device *device, - struct ib_rwq_ind_table_init_attr *init_attr, - struct ib_udata *udata); + int (*create_rwq_ind_table)(struct ib_rwq_ind_table *ib_rwq_ind_table, + struct ib_rwq_ind_table_init_attr *init_attr, + struct ib_udata *udata); int (*destroy_rwq_ind_table)(struct ib_rwq_ind_table *wq_ind_table); struct ib_dm *(*alloc_dm)(struct ib_device *device, struct ib_ucontext *context, @@ -2507,8 +2545,8 @@ struct ib_device_ops { struct ib_mr *(*reg_dm_mr)(struct ib_pd *pd, struct ib_dm *dm, struct ib_dm_mr_attr *attr, struct uverbs_attr_bundle *attrs); - struct ib_counters *(*create_counters)( - struct ib_device *device, struct uverbs_attr_bundle *attrs); + int (*create_counters)(struct ib_counters *counters, + struct uverbs_attr_bundle *attrs); int (*destroy_counters)(struct ib_counters *counters); int (*read_counters)(struct ib_counters *counters, struct ib_counters_read_attr *counters_read_attr, @@ -2519,13 +2557,14 @@ struct ib_device_ops { unsigned int *meta_sg_offset); /** - * alloc_hw_stats - Allocate a struct rdma_hw_stats and fill in the - * driver initialized data. The struct is kfree()'ed by the sysfs - * core when the device is removed. A lifespan of -1 in the return - * struct tells the core to set a default lifespan. + * alloc_hw_[device,port]_stats - Allocate a struct rdma_hw_stats and + * fill in the driver initialized data. The struct is kfree()'ed by + * the sysfs core when the device is removed. A lifespan of -1 in the + * return struct tells the core to set a default lifespan. */ - struct rdma_hw_stats *(*alloc_hw_stats)(struct ib_device *device, - u8 port_num); + struct rdma_hw_stats *(*alloc_hw_device_stats)(struct ib_device *device); + struct rdma_hw_stats *(*alloc_hw_port_stats)(struct ib_device *device, + u32 port_num); /** * get_hw_stats - Fill in the counter value(s) in the stats struct. * @index - The index in the value array we wish to have updated, or @@ -2539,18 +2578,25 @@ struct ib_device_ops { * one given in index at their option */ int (*get_hw_stats)(struct ib_device *device, - struct rdma_hw_stats *stats, u8 port, int index); - /* - * This function is called once for each port when a ib device is - * registered. + struct rdma_hw_stats *stats, u32 port, int index); + + /** + * modify_hw_stat - Modify the counter configuration + * @enable: true/false when enable/disable a counter + * Return codes - 0 on success or error code otherwise. */ - int (*init_port)(struct ib_device *device, u8 port_num, - struct kobject *port_sysfs); + int (*modify_hw_stat)(struct ib_device *device, u32 port, + unsigned int counter_index, bool enable); /** * Allows rdma drivers to add their own restrack attributes. */ - int (*fill_res_entry)(struct sk_buff *msg, - struct rdma_restrack_entry *entry); + int (*fill_res_mr_entry)(struct sk_buff *msg, struct ib_mr *ibmr); + int (*fill_res_mr_entry_raw)(struct sk_buff *msg, struct ib_mr *ibmr); + int (*fill_res_cq_entry)(struct sk_buff *msg, struct ib_cq *ibcq); + int (*fill_res_cq_entry_raw)(struct sk_buff *msg, struct ib_cq *ibcq); + int (*fill_res_qp_entry)(struct sk_buff *msg, struct ib_qp *ibqp); + int (*fill_res_qp_entry_raw)(struct sk_buff *msg, struct ib_qp *ibqp); + int (*fill_res_cm_id_entry)(struct sk_buff *msg, struct rdma_cm_id *id); /* Device lifecycle callbacks */ /* @@ -2605,14 +2651,28 @@ struct ib_device_ops { * Allows rdma drivers to add their own restrack attributes * dumped via 'rdma stat' iproute2 command. */ - int (*fill_stat_entry)(struct sk_buff *msg, - struct rdma_restrack_entry *entry); + int (*fill_stat_mr_entry)(struct sk_buff *msg, struct ib_mr *ibmr); + + /* query driver for its ucontext properties */ + int (*query_ucontext)(struct ib_ucontext *context, + struct uverbs_attr_bundle *attrs); + + /* + * Provide NUMA node. This API exists for rdmavt/hfi1 only. + * Everyone else relies on Linux memory management model. + */ + int (*get_numa_node)(struct ib_device *dev); DECLARE_RDMA_OBJ_SIZE(ib_ah); + DECLARE_RDMA_OBJ_SIZE(ib_counters); DECLARE_RDMA_OBJ_SIZE(ib_cq); + DECLARE_RDMA_OBJ_SIZE(ib_mw); DECLARE_RDMA_OBJ_SIZE(ib_pd); + DECLARE_RDMA_OBJ_SIZE(ib_qp); + DECLARE_RDMA_OBJ_SIZE(ib_rwq_ind_table); DECLARE_RDMA_OBJ_SIZE(ib_srq); DECLARE_RDMA_OBJ_SIZE(ib_ucontext); + DECLARE_RDMA_OBJ_SIZE(ib_xrcd); }; struct ib_core_device { @@ -2659,14 +2719,14 @@ struct ib_device { struct ib_core_device coredev; }; - /* First group for device attributes, - * Second group for driver provided attributes (optional). - * It is NULL terminated array. + /* First group is for device attributes, + * Second group is for driver provided attributes (optional). + * Third group is for the hw_stats + * It is a NULL terminated array. */ - const struct attribute_group *groups[3]; + const struct attribute_group *groups[4]; u64 uverbs_cmd_mask; - u64 uverbs_ex_cmd_mask; char node_desc[IB_DEVICE_NODE_DESC_MAX]; __be64 node_guid; @@ -2677,16 +2737,19 @@ struct ib_device { /* CQ adaptive moderation (RDMA DIM) */ u16 use_cq_dim:1; u8 node_type; - u8 phys_port_cnt; + u32 phys_port_cnt; struct ib_device_attr attrs; - struct attribute_group *hw_stats_ag; - struct rdma_hw_stats *hw_stats; + struct hw_stats_device_data *hw_stats_data; #ifdef CONFIG_CGROUP_RDMA struct rdmacg_device cg_device; #endif u32 index; + + spinlock_t cq_pools_lock; + struct list_head cq_pools[IB_POLL_LAST_POOL_TYPE + 1]; + struct rdma_restrack_root *res; const struct uapi_definition *driver_def; @@ -2709,12 +2772,22 @@ struct ib_device { /* Used by iWarp CM */ char iw_ifname[IFNAMSIZ]; u32 iw_driver_flags; + u32 lag_flags; }; +static inline void *rdma_zalloc_obj(struct ib_device *dev, size_t size, + gfp_t gfp, bool is_numa_aware) +{ + if (is_numa_aware && dev->ops.get_numa_node) + return kzalloc_node(size, gfp, dev->ops.get_numa_node(dev)); + + return kzalloc(size, gfp); +} + struct ib_client_nl_info; struct ib_client { const char *name; - void (*add) (struct ib_device *); + int (*add)(struct ib_device *ibdev); void (*remove)(struct ib_device *, void *client_data); void (*rename)(struct ib_device *dev, void *client_data); int (*get_nl_info)(struct ib_device *ibdev, void *client_data, @@ -2738,7 +2811,7 @@ struct ib_client { * netdev. */ struct net_device *(*get_net_dev_by_params)( struct ib_device *dev, - u8 port, + u32 port, u16 pkey, const union ib_gid *gid, const struct sockaddr *addr, @@ -2778,7 +2851,8 @@ void ib_dealloc_device(struct ib_device *device); void ib_get_device_fw_str(struct ib_device *device, char *str); -int ib_register_device(struct ib_device *device, const char *name); +int ib_register_device(struct ib_device *device, const char *name, + struct device *dma_device); void ib_unregister_device(struct ib_device *device); void ib_unregister_driver(enum rdma_driver_id driver_id); void ib_unregister_device_and_put(struct ib_device *device); @@ -2850,6 +2924,15 @@ int rdma_user_mmap_entry_insert_range(struct ib_ucontext *ucontext, size_t length, u32 min_pgoff, u32 max_pgoff); +static inline int +rdma_user_mmap_entry_insert_exact(struct ib_ucontext *ucontext, + struct rdma_user_mmap_entry *entry, + size_t length, u32 pgoff) +{ + return rdma_user_mmap_entry_insert_range(ucontext, entry, length, pgoff, + pgoff); +} + struct rdma_user_mmap_entry * rdma_user_mmap_entry_get_pgoff(struct ib_ucontext *ucontext, unsigned long pgoff); @@ -2896,46 +2979,6 @@ static inline bool ib_is_udata_cleared(struct ib_udata *udata, } /** - * ib_is_destroy_retryable - Check whether the uobject destruction - * is retryable. - * @ret: The initial destruction return code - * @why: remove reason - * @uobj: The uobject that is destroyed - * - * This function is a helper function that IB layer and low-level drivers - * can use to consider whether the destruction of the given uobject is - * retry-able. - * It checks the original return code, if it wasn't success the destruction - * is retryable according to the ucontext state (i.e. cleanup_retryable) and - * the remove reason. (i.e. why). - * Must be called with the object locked for destroy. - */ -static inline bool ib_is_destroy_retryable(int ret, enum rdma_remove_reason why, - struct ib_uobject *uobj) -{ - return ret && (why == RDMA_REMOVE_DESTROY || - uobj->context->cleanup_retryable); -} - -/** - * ib_destroy_usecnt - Called during destruction to check the usecnt - * @usecnt: The usecnt atomic - * @why: remove reason - * @uobj: The uobject that is destroyed - * - * Non-zero usecnts will block destruction unless destruction was triggered by - * a ucontext cleanup. - */ -static inline int ib_destroy_usecnt(atomic_t *usecnt, - enum rdma_remove_reason why, - struct ib_uobject *uobj) -{ - if (atomic_read(usecnt) && ib_is_destroy_retryable(-EBUSY, why, uobj)) - return -EBUSY; - return 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. @@ -2958,10 +3001,10 @@ void ib_unregister_event_handler(struct ib_event_handler *event_handler); void ib_dispatch_event(const struct ib_event *event); int ib_query_port(struct ib_device *device, - u8 port_num, struct ib_port_attr *port_attr); + u32 port_num, struct ib_port_attr *port_attr); enum rdma_link_layer rdma_port_get_link_layer(struct ib_device *device, - u8 port_num); + u32 port_num); /** * rdma_cap_ib_switch - Check if the device is IB switch @@ -2985,7 +3028,7 @@ static inline bool rdma_cap_ib_switch(const struct ib_device *device) * * Return start port number */ -static inline u8 rdma_start_port(const struct ib_device *device) +static inline u32 rdma_start_port(const struct ib_device *device) { return rdma_cap_ib_switch(device) ? 0 : 1; } @@ -2996,9 +3039,10 @@ static inline u8 rdma_start_port(const struct ib_device *device) * @iter - The unsigned int to store the port number */ #define rdma_for_each_port(device, iter) \ - for (iter = rdma_start_port(device + BUILD_BUG_ON_ZERO(!__same_type( \ - unsigned int, iter))); \ - iter <= rdma_end_port(device); (iter)++) + for (iter = rdma_start_port(device + \ + BUILD_BUG_ON_ZERO(!__same_type(u32, \ + iter))); \ + iter <= rdma_end_port(device); iter++) /** * rdma_end_port - Return the last valid port number for the device @@ -3008,7 +3052,7 @@ static inline u8 rdma_start_port(const struct ib_device *device) * * Return last port number */ -static inline u8 rdma_end_port(const struct ib_device *device) +static inline u32 rdma_end_port(const struct ib_device *device) { return rdma_cap_ib_switch(device) ? 0 : device->phys_port_cnt; } @@ -3021,55 +3065,63 @@ static inline int rdma_is_port_valid(const struct ib_device *device, } static inline bool rdma_is_grh_required(const struct ib_device *device, - u8 port_num) + u32 port_num) { return device->port_data[port_num].immutable.core_cap_flags & RDMA_CORE_PORT_IB_GRH_REQUIRED; } -static inline bool rdma_protocol_ib(const struct ib_device *device, u8 port_num) +static inline bool rdma_protocol_ib(const struct ib_device *device, + u32 port_num) { return device->port_data[port_num].immutable.core_cap_flags & RDMA_CORE_CAP_PROT_IB; } -static inline bool rdma_protocol_roce(const struct ib_device *device, u8 port_num) +static inline bool rdma_protocol_roce(const struct ib_device *device, + u32 port_num) { return device->port_data[port_num].immutable.core_cap_flags & (RDMA_CORE_CAP_PROT_ROCE | RDMA_CORE_CAP_PROT_ROCE_UDP_ENCAP); } -static inline bool rdma_protocol_roce_udp_encap(const struct ib_device *device, u8 port_num) +static inline bool rdma_protocol_roce_udp_encap(const struct ib_device *device, + u32 port_num) { return device->port_data[port_num].immutable.core_cap_flags & RDMA_CORE_CAP_PROT_ROCE_UDP_ENCAP; } -static inline bool rdma_protocol_roce_eth_encap(const struct ib_device *device, u8 port_num) +static inline bool rdma_protocol_roce_eth_encap(const struct ib_device *device, + u32 port_num) { return device->port_data[port_num].immutable.core_cap_flags & RDMA_CORE_CAP_PROT_ROCE; } -static inline bool rdma_protocol_iwarp(const struct ib_device *device, u8 port_num) +static inline bool rdma_protocol_iwarp(const struct ib_device *device, + u32 port_num) { return device->port_data[port_num].immutable.core_cap_flags & RDMA_CORE_CAP_PROT_IWARP; } -static inline bool rdma_ib_or_roce(const struct ib_device *device, u8 port_num) +static inline bool rdma_ib_or_roce(const struct ib_device *device, + u32 port_num) { return rdma_protocol_ib(device, port_num) || rdma_protocol_roce(device, port_num); } -static inline bool rdma_protocol_raw_packet(const struct ib_device *device, u8 port_num) +static inline bool rdma_protocol_raw_packet(const struct ib_device *device, + u32 port_num) { return device->port_data[port_num].immutable.core_cap_flags & RDMA_CORE_CAP_PROT_RAW_PACKET; } -static inline bool rdma_protocol_usnic(const struct ib_device *device, u8 port_num) +static inline bool rdma_protocol_usnic(const struct ib_device *device, + u32 port_num) { return device->port_data[port_num].immutable.core_cap_flags & RDMA_CORE_CAP_PROT_USNIC; @@ -3087,7 +3139,7 @@ static inline bool rdma_protocol_usnic(const struct ib_device *device, u8 port_n * * 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) +static inline bool rdma_cap_ib_mad(const struct ib_device *device, u32 port_num) { return device->port_data[port_num].immutable.core_cap_flags & RDMA_CORE_CAP_IB_MAD; @@ -3112,7 +3164,7 @@ static inline bool rdma_cap_ib_mad(const struct ib_device *device, u8 port_num) * * Return: true if the port supports OPA MAD packet formats. */ -static inline bool rdma_cap_opa_mad(struct ib_device *device, u8 port_num) +static inline bool rdma_cap_opa_mad(struct ib_device *device, u32 port_num) { return device->port_data[port_num].immutable.core_cap_flags & RDMA_CORE_CAP_OPA_MAD; @@ -3138,7 +3190,7 @@ static inline bool rdma_cap_opa_mad(struct ib_device *device, u8 port_num) * * Return: true if the port provides an SMI. */ -static inline bool rdma_cap_ib_smi(const struct ib_device *device, u8 port_num) +static inline bool rdma_cap_ib_smi(const struct ib_device *device, u32 port_num) { return device->port_data[port_num].immutable.core_cap_flags & RDMA_CORE_CAP_IB_SMI; @@ -3159,7 +3211,7 @@ static inline bool rdma_cap_ib_smi(const struct ib_device *device, u8 port_num) * 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) +static inline bool rdma_cap_ib_cm(const struct ib_device *device, u32 port_num) { return device->port_data[port_num].immutable.core_cap_flags & RDMA_CORE_CAP_IB_CM; @@ -3177,7 +3229,7 @@ static inline bool rdma_cap_ib_cm(const struct ib_device *device, u8 port_num) * 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) +static inline bool rdma_cap_iw_cm(const struct ib_device *device, u32 port_num) { return device->port_data[port_num].immutable.core_cap_flags & RDMA_CORE_CAP_IW_CM; @@ -3198,7 +3250,7 @@ static inline bool rdma_cap_iw_cm(const struct ib_device *device, u8 port_num) * 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) +static inline bool rdma_cap_ib_sa(const struct ib_device *device, u32 port_num) { return device->port_data[port_num].immutable.core_cap_flags & RDMA_CORE_CAP_IB_SA; @@ -3221,7 +3273,8 @@ static inline bool rdma_cap_ib_sa(const struct ib_device *device, u8 port_num) * 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) +static inline bool rdma_cap_ib_mcast(const struct ib_device *device, + u32 port_num) { return rdma_cap_ib_sa(device, port_num); } @@ -3239,7 +3292,7 @@ static inline bool rdma_cap_ib_mcast(const struct ib_device *device, u8 port_num * 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) +static inline bool rdma_cap_af_ib(const struct ib_device *device, u32 port_num) { return device->port_data[port_num].immutable.core_cap_flags & RDMA_CORE_CAP_AF_IB; @@ -3261,7 +3314,7 @@ static inline bool rdma_cap_af_ib(const struct ib_device *device, u8 port_num) * 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) +static inline bool rdma_cap_eth_ah(const struct ib_device *device, u32 port_num) { return device->port_data[port_num].immutable.core_cap_flags & RDMA_CORE_CAP_ETH_AH; @@ -3276,7 +3329,7 @@ static inline bool rdma_cap_eth_ah(const struct ib_device *device, u8 port_num) * Return: true if we are running on an OPA device which supports * the extended OPA addressing. */ -static inline bool rdma_cap_opa_ah(struct ib_device *device, u8 port_num) +static inline bool rdma_cap_opa_ah(struct ib_device *device, u32 port_num) { return (device->port_data[port_num].immutable.core_cap_flags & RDMA_CORE_CAP_OPA_AH) == RDMA_CORE_CAP_OPA_AH; @@ -3294,7 +3347,8 @@ static inline bool rdma_cap_opa_ah(struct ib_device *device, u8 port_num) * 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) +static inline size_t rdma_max_mad_size(const struct ib_device *device, + u32 port_num) { return device->port_data[port_num].immutable.max_mad_size; } @@ -3313,7 +3367,7 @@ static inline size_t rdma_max_mad_size(const struct ib_device *device, u8 port_n * its GIDs. */ static inline bool rdma_cap_roce_gid_table(const struct ib_device *device, - u8 port_num) + u32 port_num) { return rdma_protocol_roce(device, port_num) && device->ops.add_gid && device->ops.del_gid; @@ -3332,57 +3386,82 @@ static inline bool rdma_cap_read_inv(struct ib_device *dev, u32 port_num) } /** - * rdma_find_pg_bit - Find page bit given address and HW supported page sizes + * rdma_core_cap_opa_port - Return whether the RDMA Port is OPA or not. + * @device: Device + * @port_num: 1 based Port number * - * @addr: address - * @pgsz_bitmap: bitmap of HW supported page sizes + * Return true if port is an Intel OPA port , false if not */ -static inline unsigned int rdma_find_pg_bit(unsigned long addr, - unsigned long pgsz_bitmap) +static inline bool rdma_core_cap_opa_port(struct ib_device *device, + u32 port_num) { - unsigned long align; - unsigned long pgsz; - - align = addr & -addr; + return (device->port_data[port_num].immutable.core_cap_flags & + RDMA_CORE_PORT_INTEL_OPA) == RDMA_CORE_PORT_INTEL_OPA; +} - /* Find page bit such that addr is aligned to the highest supported - * HW page size - */ - pgsz = pgsz_bitmap & ~(-align << 1); - if (!pgsz) - return __ffs(pgsz_bitmap); +/** + * rdma_mtu_enum_to_int - Return the mtu of the port as an integer value. + * @device: Device + * @port_num: Port number + * @mtu: enum value of MTU + * + * Return the MTU size supported by the port as an integer value. Will return + * -1 if enum value of mtu is not supported. + */ +static inline int rdma_mtu_enum_to_int(struct ib_device *device, u32 port, + int mtu) +{ + if (rdma_core_cap_opa_port(device, port)) + return opa_mtu_enum_to_int((enum opa_mtu)mtu); + else + return ib_mtu_enum_to_int((enum ib_mtu)mtu); +} - return __fls(pgsz); +/** + * rdma_mtu_from_attr - Return the mtu of the port from the port attribute. + * @device: Device + * @port_num: Port number + * @attr: port attribute + * + * Return the MTU size supported by the port as an integer value. + */ +static inline int rdma_mtu_from_attr(struct ib_device *device, u32 port, + struct ib_port_attr *attr) +{ + if (rdma_core_cap_opa_port(device, port)) + return attr->phys_mtu; + else + return ib_mtu_enum_to_int(attr->max_mtu); } -int ib_set_vf_link_state(struct ib_device *device, int vf, u8 port, +int ib_set_vf_link_state(struct ib_device *device, int vf, u32 port, int state); -int ib_get_vf_config(struct ib_device *device, int vf, u8 port, +int ib_get_vf_config(struct ib_device *device, int vf, u32 port, struct ifla_vf_info *info); -int ib_get_vf_stats(struct ib_device *device, int vf, u8 port, +int ib_get_vf_stats(struct ib_device *device, int vf, u32 port, struct ifla_vf_stats *stats); -int ib_get_vf_guid(struct ib_device *device, int vf, u8 port, +int ib_get_vf_guid(struct ib_device *device, int vf, u32 port, struct ifla_vf_guid *node_guid, struct ifla_vf_guid *port_guid); -int ib_set_vf_guid(struct ib_device *device, int vf, u8 port, u64 guid, +int ib_set_vf_guid(struct ib_device *device, int vf, u32 port, u64 guid, int type); int ib_query_pkey(struct ib_device *device, - u8 port_num, u16 index, u16 *pkey); + u32 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, + u32 port_num, int port_modify_mask, struct ib_port_modify *port_modify); int ib_find_gid(struct ib_device *device, union ib_gid *gid, - u8 *port_num, u16 *index); + u32 *port_num, u16 *index); int ib_find_pkey(struct ib_device *device, - u8 port_num, u16 pkey, u16 *index); + u32 port_num, u16 pkey, u16 *index); enum ib_pd_flags { /* @@ -3400,15 +3479,21 @@ enum ib_pd_flags { struct ib_pd *__ib_alloc_pd(struct ib_device *device, unsigned int flags, const char *caller); +/** + * ib_alloc_pd - Allocates an unused protection domain. + * @device: The device on which to allocate the protection domain. + * @flags: protection domain flags + * + * A protection domain object provides an association between QPs, shared + * receive queues, address handles, memory regions, and memory windows. + * + * Every PD has a local_dma_lkey which can be used as the lkey value for local + * memory operations. + */ #define ib_alloc_pd(device, flags) \ __ib_alloc_pd((device), (flags), KBUILD_MODNAME) -/** - * ib_dealloc_pd_user - Deallocate kernel/user PD - * @pd: The protection domain - * @udata: Valid user data or NULL for kernel objects - */ -void ib_dealloc_pd_user(struct ib_pd *pd, struct ib_udata *udata); +int ib_dealloc_pd_user(struct ib_pd *pd, struct ib_udata *udata); /** * ib_dealloc_pd - Deallocate kernel PD @@ -3418,7 +3503,9 @@ void ib_dealloc_pd_user(struct ib_pd *pd, struct ib_udata *udata); */ static inline void ib_dealloc_pd(struct ib_pd *pd) { - ib_dealloc_pd_user(pd, NULL); + int ret = ib_dealloc_pd_user(pd, NULL); + + WARN_ONCE(ret, "Destroy of kernel PD shouldn't fail"); } enum rdma_create_ah_flags { @@ -3489,7 +3576,7 @@ int ib_get_rdma_header_version(const union rdma_network_hdr *hdr); * attributes which are initialized using ib_init_ah_attr_from_wc(). * */ -int ib_init_ah_attr_from_wc(struct ib_device *device, u8 port_num, +int ib_init_ah_attr_from_wc(struct ib_device *device, u32 port_num, const struct ib_wc *wc, const struct ib_grh *grh, struct rdma_ah_attr *ah_attr); @@ -3506,7 +3593,7 @@ int ib_init_ah_attr_from_wc(struct ib_device *device, u8 port_num, * 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); + const struct ib_grh *grh, u32 port_num); /** * rdma_modify_ah - Modifies the address vector associated with an address @@ -3546,26 +3633,25 @@ int rdma_destroy_ah_user(struct ib_ah *ah, u32 flags, struct ib_udata *udata); * * NOTE: for user ah use rdma_destroy_ah_user with valid udata! */ -static inline int rdma_destroy_ah(struct ib_ah *ah, u32 flags) +static inline void rdma_destroy_ah(struct ib_ah *ah, u32 flags) { - return rdma_destroy_ah_user(ah, flags, NULL); + int ret = rdma_destroy_ah_user(ah, flags, NULL); + + WARN_ONCE(ret, "Destroy of kernel AH shouldn't fail"); } -/** - * 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); +struct ib_srq *ib_create_srq_user(struct ib_pd *pd, + struct ib_srq_init_attr *srq_init_attr, + struct ib_usrq_object *uobject, + struct ib_udata *udata); +static inline struct ib_srq * +ib_create_srq(struct ib_pd *pd, struct ib_srq_init_attr *srq_init_attr) +{ + if (!pd->device->ops.create_srq) + return ERR_PTR(-EOPNOTSUPP); + + return ib_create_srq_user(pd, srq_init_attr, NULL, NULL); +} /** * ib_modify_srq - Modifies the attributes for the specified SRQ. @@ -3605,9 +3691,11 @@ int ib_destroy_srq_user(struct ib_srq *srq, struct ib_udata *udata); * * NOTE: for user srq use ib_destroy_srq_user with valid udata! */ -static inline int ib_destroy_srq(struct ib_srq *srq) +static inline void ib_destroy_srq(struct ib_srq *srq) { - return ib_destroy_srq_user(srq, NULL); + int ret = ib_destroy_srq_user(srq, NULL); + + WARN_ONCE(ret, "Destroy of kernel SRQ shouldn't fail"); } /** @@ -3627,34 +3715,21 @@ static inline int ib_post_srq_recv(struct ib_srq *srq, bad_recv_wr ? : &dummy); } +struct ib_qp *ib_create_qp_kernel(struct ib_pd *pd, + struct ib_qp_init_attr *qp_init_attr, + const char *caller); /** - * ib_create_qp_user - Creates a QP associated with the specified protection - * domain. + * ib_create_qp - Creates a kernel QP associated with the specific protection + * domain. * @pd: The protection domain associated with the QP. - * @qp_init_attr: A list of initial attributes required to create the + * @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. - * @udata: Valid user data or NULL for kernel objects - */ -struct ib_qp *ib_create_qp_user(struct ib_pd *pd, - struct ib_qp_init_attr *qp_init_attr, - struct ib_udata *udata); - -/** - * ib_create_qp - Creates a kernel 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. - * @udata: Valid user data or NULL for kernel objects - * - * NOTE: for user qp use ib_create_qp_user with valid udata! */ static inline struct ib_qp *ib_create_qp(struct ib_pd *pd, - struct ib_qp_init_attr *qp_init_attr) + struct ib_qp_init_attr *init_attr) { - return ib_create_qp_user(pd, qp_init_attr, NULL); + return ib_create_qp_kernel(pd, init_attr, KBUILD_MODNAME); } /** @@ -3778,46 +3853,15 @@ static inline int ib_post_recv(struct ib_qp *qp, return qp->device->ops.post_recv(qp, recv_wr, bad_recv_wr ? : &dummy); } -struct ib_cq *__ib_alloc_cq_user(struct ib_device *dev, void *private, - int nr_cqe, int comp_vector, - enum ib_poll_context poll_ctx, - const char *caller, struct ib_udata *udata); - -/** - * ib_alloc_cq_user: Allocate kernel/user CQ - * @dev: The IB device - * @private: Private data attached to the CQE - * @nr_cqe: Number of CQEs in the CQ - * @comp_vector: Completion vector used for the IRQs - * @poll_ctx: Context used for polling the CQ - * @udata: Valid user data or NULL for kernel objects - */ -static inline struct ib_cq *ib_alloc_cq_user(struct ib_device *dev, - void *private, int nr_cqe, - int comp_vector, - enum ib_poll_context poll_ctx, - struct ib_udata *udata) -{ - return __ib_alloc_cq_user(dev, private, nr_cqe, comp_vector, poll_ctx, - KBUILD_MODNAME, udata); -} - -/** - * ib_alloc_cq: Allocate kernel CQ - * @dev: The IB device - * @private: Private data attached to the CQE - * @nr_cqe: Number of CQEs in the CQ - * @comp_vector: Completion vector used for the IRQs - * @poll_ctx: Context used for polling the CQ - * - * NOTE: for user cq use ib_alloc_cq_user with valid udata! - */ +struct ib_cq *__ib_alloc_cq(struct ib_device *dev, void *private, int nr_cqe, + int comp_vector, enum ib_poll_context poll_ctx, + const char *caller); static inline struct ib_cq *ib_alloc_cq(struct ib_device *dev, void *private, int nr_cqe, int comp_vector, enum ib_poll_context poll_ctx) { - return ib_alloc_cq_user(dev, private, nr_cqe, comp_vector, poll_ctx, - NULL); + return __ib_alloc_cq(dev, private, nr_cqe, comp_vector, poll_ctx, + KBUILD_MODNAME); } struct ib_cq *__ib_alloc_cq_any(struct ib_device *dev, void *private, @@ -3839,24 +3883,7 @@ static inline struct ib_cq *ib_alloc_cq_any(struct ib_device *dev, KBUILD_MODNAME); } -/** - * ib_free_cq_user - Free kernel/user CQ - * @cq: The CQ to free - * @udata: Valid user data or NULL for kernel objects - */ -void ib_free_cq_user(struct ib_cq *cq, struct ib_udata *udata); - -/** - * ib_free_cq - Free kernel CQ - * @cq: The CQ to free - * - * NOTE: for user cq use ib_free_cq_user with valid udata! - */ -static inline void ib_free_cq(struct ib_cq *cq) -{ - ib_free_cq_user(cq, NULL); -} - +void ib_free_cq(struct ib_cq *cq); int ib_process_cq_direct(struct ib_cq *cq, int budget); /** @@ -3914,7 +3941,9 @@ int ib_destroy_cq_user(struct ib_cq *cq, struct ib_udata *udata); */ static inline void ib_destroy_cq(struct ib_cq *cq) { - ib_destroy_cq_user(cq, NULL); + int ret = ib_destroy_cq_user(cq, NULL); + + WARN_ONCE(ret, "Destroy of kernel CQ shouldn't fail"); } /** @@ -3968,18 +3997,31 @@ static inline int ib_req_notify_cq(struct ib_cq *cq, return cq->device->ops.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. +struct ib_cq *ib_cq_pool_get(struct ib_device *dev, unsigned int nr_cqe, + int comp_vector_hint, + enum ib_poll_context poll_ctx); + +void ib_cq_pool_put(struct ib_cq *cq, unsigned int nr_cqe); + +/* + * Drivers that don't need a DMA mapping at the RDMA layer, set dma_device to + * NULL. This causes the ib_dma* helpers to just stash the kernel virtual + * address into the dma address. */ -static inline int ib_req_ncomp_notif(struct ib_cq *cq, int wc_cnt) +static inline bool ib_uses_virt_dma(struct ib_device *dev) { - return cq->device->ops.req_ncomp_notif ? - cq->device->ops.req_ncomp_notif(cq, wc_cnt) : - -ENOSYS; + return IS_ENABLED(CONFIG_INFINIBAND_VIRT_DMA) && !dev->dma_device; +} + +/* + * Check if a IB device's underlying DMA mapping supports P2PDMA transfers. + */ +static inline bool ib_dma_pci_p2p_dma_supported(struct ib_device *dev) +{ + if (ib_uses_virt_dma(dev)) + return false; + + return dma_pci_p2pdma_supported(dev->dma_device); } /** @@ -3989,6 +4031,8 @@ static inline int ib_req_ncomp_notif(struct ib_cq *cq, int wc_cnt) */ static inline int ib_dma_mapping_error(struct ib_device *dev, u64 dma_addr) { + if (ib_uses_virt_dma(dev)) + return 0; return dma_mapping_error(dev->dma_device, dma_addr); } @@ -4003,6 +4047,8 @@ static inline u64 ib_dma_map_single(struct ib_device *dev, void *cpu_addr, size_t size, enum dma_data_direction direction) { + if (ib_uses_virt_dma(dev)) + return (uintptr_t)cpu_addr; return dma_map_single(dev->dma_device, cpu_addr, size, direction); } @@ -4017,7 +4063,8 @@ static inline void ib_dma_unmap_single(struct ib_device *dev, u64 addr, size_t size, enum dma_data_direction direction) { - dma_unmap_single(dev->dma_device, addr, size, direction); + if (!ib_uses_virt_dma(dev)) + dma_unmap_single(dev->dma_device, addr, size, direction); } /** @@ -4034,6 +4081,8 @@ static inline u64 ib_dma_map_page(struct ib_device *dev, size_t size, enum dma_data_direction direction) { + if (ib_uses_virt_dma(dev)) + return (uintptr_t)(page_address(page) + offset); return dma_map_page(dev->dma_device, page, offset, size, direction); } @@ -4048,7 +4097,63 @@ static inline void ib_dma_unmap_page(struct ib_device *dev, u64 addr, size_t size, enum dma_data_direction direction) { - dma_unmap_page(dev->dma_device, addr, size, direction); + if (!ib_uses_virt_dma(dev)) + dma_unmap_page(dev->dma_device, addr, size, direction); +} + +int ib_dma_virt_map_sg(struct ib_device *dev, struct scatterlist *sg, int nents); +static inline int ib_dma_map_sg_attrs(struct ib_device *dev, + struct scatterlist *sg, int nents, + enum dma_data_direction direction, + unsigned long dma_attrs) +{ + if (ib_uses_virt_dma(dev)) + return ib_dma_virt_map_sg(dev, sg, nents); + return dma_map_sg_attrs(dev->dma_device, sg, nents, direction, + dma_attrs); +} + +static inline void ib_dma_unmap_sg_attrs(struct ib_device *dev, + struct scatterlist *sg, int nents, + enum dma_data_direction direction, + unsigned long dma_attrs) +{ + if (!ib_uses_virt_dma(dev)) + dma_unmap_sg_attrs(dev->dma_device, sg, nents, direction, + dma_attrs); +} + +/** + * ib_dma_map_sgtable_attrs - Map a scatter/gather table to DMA addresses + * @dev: The device for which the DMA addresses are to be created + * @sg: The sg_table object describing the buffer + * @direction: The direction of the DMA + * @attrs: Optional DMA attributes for the map operation + */ +static inline int ib_dma_map_sgtable_attrs(struct ib_device *dev, + struct sg_table *sgt, + enum dma_data_direction direction, + unsigned long dma_attrs) +{ + int nents; + + if (ib_uses_virt_dma(dev)) { + nents = ib_dma_virt_map_sg(dev, sgt->sgl, sgt->orig_nents); + if (!nents) + return -EIO; + sgt->nents = nents; + return 0; + } + return dma_map_sgtable(dev->dma_device, sgt, direction, dma_attrs); +} + +static inline void ib_dma_unmap_sgtable_attrs(struct ib_device *dev, + struct sg_table *sgt, + enum dma_data_direction direction, + unsigned long dma_attrs) +{ + if (!ib_uses_virt_dma(dev)) + dma_unmap_sgtable(dev->dma_device, sgt, direction, dma_attrs); } /** @@ -4062,7 +4167,7 @@ static inline int ib_dma_map_sg(struct ib_device *dev, struct scatterlist *sg, int nents, enum dma_data_direction direction) { - return dma_map_sg(dev->dma_device, sg, nents, direction); + return ib_dma_map_sg_attrs(dev, sg, nents, direction, 0); } /** @@ -4076,24 +4181,7 @@ static inline void ib_dma_unmap_sg(struct ib_device *dev, struct scatterlist *sg, int nents, enum dma_data_direction direction) { - 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, - unsigned long dma_attrs) -{ - return dma_map_sg_attrs(dev->dma_device, sg, nents, direction, - dma_attrs); -} - -static inline void ib_dma_unmap_sg_attrs(struct ib_device *dev, - struct scatterlist *sg, int nents, - enum dma_data_direction direction, - unsigned long dma_attrs) -{ - dma_unmap_sg_attrs(dev->dma_device, sg, nents, direction, dma_attrs); + ib_dma_unmap_sg_attrs(dev, sg, nents, direction, 0); } /** @@ -4104,6 +4192,8 @@ static inline void ib_dma_unmap_sg_attrs(struct ib_device *dev, */ static inline unsigned int ib_dma_max_seg_size(struct ib_device *dev) { + if (ib_uses_virt_dma(dev)) + return UINT_MAX; return dma_get_max_seg_size(dev->dma_device); } @@ -4119,7 +4209,8 @@ static inline void ib_dma_sync_single_for_cpu(struct ib_device *dev, size_t size, enum dma_data_direction dir) { - dma_sync_single_for_cpu(dev->dma_device, addr, size, dir); + if (!ib_uses_virt_dma(dev)) + dma_sync_single_for_cpu(dev->dma_device, addr, size, dir); } /** @@ -4134,36 +4225,8 @@ static inline void ib_dma_sync_single_for_device(struct ib_device *dev, size_t size, enum dma_data_direction dir) { - 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, - dma_addr_t *dma_handle, - gfp_t flag) -{ - return dma_alloc_coherent(dev->dma_device, size, dma_handle, flag); -} - -/** - * 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, - dma_addr_t dma_handle) -{ - dma_free_coherent(dev->dma_device, size, cpu_addr, dma_handle); + if (!ib_uses_virt_dma(dev)) + dma_sync_single_for_device(dev->dma_device, addr, size, dir); } /* ib_reg_user_mr - register a memory region for virtual addresses from kernel @@ -4199,14 +4262,8 @@ static inline int ib_dereg_mr(struct ib_mr *mr) return ib_dereg_mr_user(mr, NULL); } -struct ib_mr *ib_alloc_mr_user(struct ib_pd *pd, enum ib_mr_type mr_type, - u32 max_num_sg, struct ib_udata *udata); - -static inline struct ib_mr *ib_alloc_mr(struct ib_pd *pd, - enum ib_mr_type mr_type, u32 max_num_sg) -{ - return ib_alloc_mr_user(pd, mr_type, max_num_sg, NULL); -} +struct ib_mr *ib_alloc_mr(struct ib_pd *pd, enum ib_mr_type mr_type, + u32 max_num_sg); struct ib_mr *ib_alloc_mr_integrity(struct ib_pd *pd, u32 max_num_data_sg, @@ -4236,45 +4293,6 @@ static inline u32 ib_inc_rkey(u32 rkey) } /** - * 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->ops.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. @@ -4296,23 +4314,12 @@ int ib_attach_mcast(struct ib_qp *qp, union ib_gid *gid, u16 lid); */ 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. - * @caller: Module name for kernel consumers - */ -struct ib_xrcd *__ib_alloc_xrcd(struct ib_device *device, const char *caller); -#define ib_alloc_xrcd(device) \ - __ib_alloc_xrcd((device), KBUILD_MODNAME) +struct ib_xrcd *ib_alloc_xrcd_user(struct ib_device *device, + struct inode *inode, struct ib_udata *udata); +int ib_dealloc_xrcd_user(struct ib_xrcd *xrcd, struct ib_udata *udata); -/** - * ib_dealloc_xrcd - Deallocates an XRC domain. - * @xrcd: The XRC domain to deallocate. - * @udata: Valid user data or NULL for kernel object - */ -int ib_dealloc_xrcd(struct ib_xrcd *xrcd, struct ib_udata *udata); - -static inline int ib_check_mr_access(int flags) +static inline int ib_check_mr_access(struct ib_device *ib_dev, + unsigned int flags) { /* * Local write permission is required if remote write or @@ -4325,6 +4332,9 @@ static inline int ib_check_mr_access(int flags) if (flags & ~IB_ACCESS_SUPPORTED) return -EINVAL; + if (flags & IB_ACCESS_ON_DEMAND && + !(ib_dev->attrs.kernel_cap_flags & IBK_ON_DEMAND_PAGING)) + return -EINVAL; return 0; } @@ -4380,22 +4390,16 @@ struct ib_device *ib_device_get_by_netdev(struct net_device *ndev, enum rdma_driver_id driver_id); struct ib_device *ib_device_get_by_name(const char *name, enum rdma_driver_id driver_id); -struct net_device *ib_get_net_dev_by_params(struct ib_device *dev, u8 port, +struct net_device *ib_get_net_dev_by_params(struct ib_device *dev, u32 port, u16 pkey, const union ib_gid *gid, const struct sockaddr *addr); int ib_device_set_netdev(struct ib_device *ib_dev, struct net_device *ndev, unsigned int port); -struct net_device *ib_device_netdev(struct ib_device *dev, u8 port); +struct net_device *ib_device_netdev(struct ib_device *dev, u32 port); struct ib_wq *ib_create_wq(struct ib_pd *pd, struct ib_wq_init_attr *init_attr); -int ib_destroy_wq(struct ib_wq *wq, struct ib_udata *udata); -int ib_modify_wq(struct ib_wq *wq, struct ib_wq_attr *attr, - u32 wq_attr_mask); -struct ib_rwq_ind_table *ib_create_rwq_ind_table(struct ib_device *device, - struct ib_rwq_ind_table_init_attr* - wq_ind_table_init_attr); -int ib_destroy_rwq_ind_table(struct ib_rwq_ind_table *wq_ind_table); +int ib_destroy_wq_user(struct ib_wq *wq, struct ib_udata *udata); int ib_map_mr_sg(struct ib_mr *mr, struct scatterlist *sg, int sg_nents, unsigned int *sg_offset, unsigned int page_size); @@ -4423,7 +4427,8 @@ void ib_drain_rq(struct ib_qp *qp); void ib_drain_sq(struct ib_qp *qp); void ib_drain_qp(struct ib_qp *qp); -int ib_get_eth_speed(struct ib_device *dev, u8 port_num, u8 *speed, u8 *width); +int ib_get_eth_speed(struct ib_device *dev, u32 port_num, u16 *speed, + u8 *width); static inline u8 *rdma_ah_retrieve_dmac(struct rdma_ah_attr *attr) { @@ -4491,12 +4496,12 @@ static inline bool rdma_ah_get_make_grd(const struct rdma_ah_attr *attr) return false; } -static inline void rdma_ah_set_port_num(struct rdma_ah_attr *attr, u8 port_num) +static inline void rdma_ah_set_port_num(struct rdma_ah_attr *attr, u32 port_num) { attr->port_num = port_num; } -static inline u8 rdma_ah_get_port_num(const struct rdma_ah_attr *attr) +static inline u32 rdma_ah_get_port_num(const struct rdma_ah_attr *attr) { return attr->port_num; } @@ -4594,7 +4599,7 @@ void rdma_move_ah_attr(struct rdma_ah_attr *dest, struct rdma_ah_attr *src); * @port_num: Port number */ static inline enum rdma_ah_attr_type rdma_ah_find_type(struct ib_device *dev, - u8 port_num) + u32 port_num) { if (rdma_protocol_roce(dev, port_num)) return RDMA_AH_ATTR_TYPE_ROCE; @@ -4609,7 +4614,7 @@ static inline enum rdma_ah_attr_type rdma_ah_find_type(struct ib_device *dev, /** * ib_lid_cpu16 - Return lid in 16bit CPU encoding. - * In the current implementation the only way to get + * In the current implementation the only way to * get the 32bit lid is from other sources for OPA. * For IB, lids will always be 16bits so cast the * value accordingly. @@ -4666,40 +4671,18 @@ struct ib_ucontext *ib_uverbs_get_ucontext_file(struct ib_uverbs_file *ufile); int uverbs_destroy_def_handler(struct uverbs_attr_bundle *attrs); -struct net_device *rdma_alloc_netdev(struct ib_device *device, u8 port_num, +struct net_device *rdma_alloc_netdev(struct ib_device *device, u32 port_num, enum rdma_netdev_t type, const char *name, unsigned char name_assign_type, void (*setup)(struct net_device *)); -int rdma_init_netdev(struct ib_device *device, u8 port_num, +int rdma_init_netdev(struct ib_device *device, u32 port_num, enum rdma_netdev_t type, const char *name, unsigned char name_assign_type, void (*setup)(struct net_device *), struct net_device *netdev); /** - * rdma_set_device_sysfs_group - Set device attributes group to have - * driver specific sysfs entries at - * for infiniband class. - * - * @device: device pointer for which attributes to be created - * @group: Pointer to group which should be added when device - * is registered with sysfs. - * rdma_set_device_sysfs_group() allows existing drivers to expose one - * group per device to have sysfs attributes. - * - * NOTE: New drivers should not make use of this API; instead new device - * parameter should be exposed via netlink command. This API and mechanism - * exist only for existing drivers. - */ -static inline void -rdma_set_device_sysfs_group(struct ib_device *dev, - const struct attribute_group *group) -{ - dev->groups[1] = group; -} - -/** * rdma_device_to_ibdev - Get ib_device pointer from device pointer * * @device: device pointer for which ib_device pointer to retrieve @@ -4716,16 +4699,94 @@ static inline struct ib_device *rdma_device_to_ibdev(struct device *device) } /** + * ibdev_to_node - return the NUMA node for a given ib_device + * @dev: device to get the NUMA node for. + */ +static inline int ibdev_to_node(struct ib_device *ibdev) +{ + struct device *parent = ibdev->dev.parent; + + if (!parent) + return NUMA_NO_NODE; + return dev_to_node(parent); +} + +/** * rdma_device_to_drv_device - Helper macro to reach back to driver's * ib_device holder structure from device pointer. * * NOTE: New drivers should not make use of this API; This API is only for * existing drivers who have exposed sysfs entries using - * rdma_set_device_sysfs_group(). + * ops->device_group. */ #define rdma_device_to_drv_device(dev, drv_dev_struct, ibdev_member) \ container_of(rdma_device_to_ibdev(dev), drv_dev_struct, ibdev_member) bool rdma_dev_access_netns(const struct ib_device *device, const struct net *net); + +#define IB_ROCE_UDP_ENCAP_VALID_PORT_MIN (0xC000) +#define IB_ROCE_UDP_ENCAP_VALID_PORT_MAX (0xFFFF) +#define IB_GRH_FLOWLABEL_MASK (0x000FFFFF) + +/** + * rdma_flow_label_to_udp_sport - generate a RoCE v2 UDP src port value based + * on the flow_label + * + * This function will convert the 20 bit flow_label input to a valid RoCE v2 + * UDP src port 14 bit value. All RoCE V2 drivers should use this same + * convention. + */ +static inline u16 rdma_flow_label_to_udp_sport(u32 fl) +{ + u32 fl_low = fl & 0x03fff, fl_high = fl & 0xFC000; + + fl_low ^= fl_high >> 14; + return (u16)(fl_low | IB_ROCE_UDP_ENCAP_VALID_PORT_MIN); +} + +/** + * rdma_calc_flow_label - generate a RDMA symmetric flow label value based on + * local and remote qpn values + * + * This function folded the multiplication results of two qpns, 24 bit each, + * fields, and converts it to a 20 bit results. + * + * This function will create symmetric flow_label value based on the local + * and remote qpn values. this will allow both the requester and responder + * to calculate the same flow_label for a given connection. + * + * This helper function should be used by driver in case the upper layer + * provide a zero flow_label value. This is to improve entropy of RDMA + * traffic in the network. + */ +static inline u32 rdma_calc_flow_label(u32 lqpn, u32 rqpn) +{ + u64 v = (u64)lqpn * rqpn; + + v ^= v >> 20; + v ^= v >> 40; + + return (u32)(v & IB_GRH_FLOWLABEL_MASK); +} + +/** + * rdma_get_udp_sport - Calculate and set UDP source port based on the flow + * label. If flow label is not defined in GRH then + * calculate it based on lqpn/rqpn. + * + * @fl: flow label from GRH + * @lqpn: local qp number + * @rqpn: remote qp number + */ +static inline u16 rdma_get_udp_sport(u32 fl, u32 lqpn, u32 rqpn) +{ + if (!fl) + fl = rdma_calc_flow_label(lqpn, rqpn); + + return rdma_flow_label_to_udp_sport(fl); +} + +const struct ib_port_immutable* +ib_port_immutable_read(struct ib_device *dev, unsigned int port); #endif /* IB_VERBS_H */ |