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-rw-r--r--include/rdma/ib_sa.h635
1 files changed, 635 insertions, 0 deletions
diff --git a/include/rdma/ib_sa.h b/include/rdma/ib_sa.h
new file mode 100644
index 000000000..693285e76
--- /dev/null
+++ b/include/rdma/ib_sa.h
@@ -0,0 +1,635 @@
+/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
+/*
+ * Copyright (c) 2004 Topspin Communications. All rights reserved.
+ * Copyright (c) 2005 Voltaire, Inc. All rights reserved.
+ * Copyright (c) 2006 Intel Corporation. All rights reserved.
+ */
+
+#ifndef IB_SA_H
+#define IB_SA_H
+
+#include <linux/completion.h>
+#include <linux/compiler.h>
+
+#include <linux/atomic.h>
+#include <linux/netdevice.h>
+
+#include <rdma/ib_verbs.h>
+#include <rdma/ib_mad.h>
+#include <rdma/ib_addr.h>
+#include <rdma/opa_addr.h>
+
+enum {
+ IB_SA_CLASS_VERSION = 2, /* IB spec version 1.1/1.2 */
+
+ IB_SA_METHOD_GET_TABLE = 0x12,
+ IB_SA_METHOD_GET_TABLE_RESP = 0x92,
+ IB_SA_METHOD_DELETE = 0x15,
+ IB_SA_METHOD_DELETE_RESP = 0x95,
+ IB_SA_METHOD_GET_MULTI = 0x14,
+ IB_SA_METHOD_GET_MULTI_RESP = 0x94,
+ IB_SA_METHOD_GET_TRACE_TBL = 0x13
+};
+
+#define OPA_SA_CLASS_VERSION 0x80
+enum {
+ IB_SA_ATTR_CLASS_PORTINFO = 0x01,
+ IB_SA_ATTR_NOTICE = 0x02,
+ IB_SA_ATTR_INFORM_INFO = 0x03,
+ IB_SA_ATTR_NODE_REC = 0x11,
+ IB_SA_ATTR_PORT_INFO_REC = 0x12,
+ IB_SA_ATTR_SL2VL_REC = 0x13,
+ IB_SA_ATTR_SWITCH_REC = 0x14,
+ IB_SA_ATTR_LINEAR_FDB_REC = 0x15,
+ IB_SA_ATTR_RANDOM_FDB_REC = 0x16,
+ IB_SA_ATTR_MCAST_FDB_REC = 0x17,
+ IB_SA_ATTR_SM_INFO_REC = 0x18,
+ IB_SA_ATTR_LINK_REC = 0x20,
+ IB_SA_ATTR_GUID_INFO_REC = 0x30,
+ IB_SA_ATTR_SERVICE_REC = 0x31,
+ IB_SA_ATTR_PARTITION_REC = 0x33,
+ IB_SA_ATTR_PATH_REC = 0x35,
+ IB_SA_ATTR_VL_ARB_REC = 0x36,
+ IB_SA_ATTR_MC_MEMBER_REC = 0x38,
+ IB_SA_ATTR_TRACE_REC = 0x39,
+ IB_SA_ATTR_MULTI_PATH_REC = 0x3a,
+ IB_SA_ATTR_SERVICE_ASSOC_REC = 0x3b,
+ IB_SA_ATTR_INFORM_INFO_REC = 0xf3
+};
+
+enum ib_sa_selector {
+ IB_SA_GT = 0,
+ IB_SA_LT = 1,
+ IB_SA_EQ = 2,
+ /*
+ * The meaning of "best" depends on the attribute: for
+ * example, for MTU best will return the largest available
+ * MTU, while for packet life time, best will return the
+ * smallest available life time.
+ */
+ IB_SA_BEST = 3
+};
+
+/*
+ * There are 4 types of join states:
+ * FullMember, NonMember, SendOnlyNonMember, SendOnlyFullMember.
+ * The order corresponds to JoinState bits in MCMemberRecord.
+ */
+enum ib_sa_mc_join_states {
+ FULLMEMBER_JOIN,
+ NONMEMBER_JOIN,
+ SENDONLY_NONMEBER_JOIN,
+ SENDONLY_FULLMEMBER_JOIN,
+ NUM_JOIN_MEMBERSHIP_TYPES,
+};
+
+#define IB_SA_CAP_MASK2_SENDONLY_FULL_MEM_SUPPORT BIT(12)
+
+/*
+ * Structures for SA records are named "struct ib_sa_xxx_rec." No
+ * attempt is made to pack structures to match the physical layout of
+ * SA records in SA MADs; all packing and unpacking is handled by the
+ * SA query code.
+ *
+ * For a record with structure ib_sa_xxx_rec, the naming convention
+ * for the component mask value for field yyy is IB_SA_XXX_REC_YYY (we
+ * never use different abbreviations or otherwise change the spelling
+ * of xxx/yyy between ib_sa_xxx_rec.yyy and IB_SA_XXX_REC_YYY).
+ *
+ * Reserved rows are indicated with comments to help maintainability.
+ */
+
+#define IB_SA_PATH_REC_SERVICE_ID (IB_SA_COMP_MASK( 0) |\
+ IB_SA_COMP_MASK( 1))
+#define IB_SA_PATH_REC_DGID IB_SA_COMP_MASK( 2)
+#define IB_SA_PATH_REC_SGID IB_SA_COMP_MASK( 3)
+#define IB_SA_PATH_REC_DLID IB_SA_COMP_MASK( 4)
+#define IB_SA_PATH_REC_SLID IB_SA_COMP_MASK( 5)
+#define IB_SA_PATH_REC_RAW_TRAFFIC IB_SA_COMP_MASK( 6)
+/* reserved: 7 */
+#define IB_SA_PATH_REC_FLOW_LABEL IB_SA_COMP_MASK( 8)
+#define IB_SA_PATH_REC_HOP_LIMIT IB_SA_COMP_MASK( 9)
+#define IB_SA_PATH_REC_TRAFFIC_CLASS IB_SA_COMP_MASK(10)
+#define IB_SA_PATH_REC_REVERSIBLE IB_SA_COMP_MASK(11)
+#define IB_SA_PATH_REC_NUMB_PATH IB_SA_COMP_MASK(12)
+#define IB_SA_PATH_REC_PKEY IB_SA_COMP_MASK(13)
+#define IB_SA_PATH_REC_QOS_CLASS IB_SA_COMP_MASK(14)
+#define IB_SA_PATH_REC_SL IB_SA_COMP_MASK(15)
+#define IB_SA_PATH_REC_MTU_SELECTOR IB_SA_COMP_MASK(16)
+#define IB_SA_PATH_REC_MTU IB_SA_COMP_MASK(17)
+#define IB_SA_PATH_REC_RATE_SELECTOR IB_SA_COMP_MASK(18)
+#define IB_SA_PATH_REC_RATE IB_SA_COMP_MASK(19)
+#define IB_SA_PATH_REC_PACKET_LIFE_TIME_SELECTOR IB_SA_COMP_MASK(20)
+#define IB_SA_PATH_REC_PACKET_LIFE_TIME IB_SA_COMP_MASK(21)
+#define IB_SA_PATH_REC_PREFERENCE IB_SA_COMP_MASK(22)
+
+enum sa_path_rec_type {
+ SA_PATH_REC_TYPE_IB,
+ SA_PATH_REC_TYPE_ROCE_V1,
+ SA_PATH_REC_TYPE_ROCE_V2,
+ SA_PATH_REC_TYPE_OPA
+};
+
+struct sa_path_rec_ib {
+ __be16 dlid;
+ __be16 slid;
+ u8 raw_traffic;
+};
+
+/**
+ * struct sa_path_rec_roce - RoCE specific portion of the path record entry
+ * @route_resolved: When set, it indicates that this route is already
+ * resolved for this path record entry.
+ * @dmac: Destination mac address for the given DGID entry
+ * of the path record entry.
+ */
+struct sa_path_rec_roce {
+ bool route_resolved;
+ u8 dmac[ETH_ALEN];
+};
+
+struct sa_path_rec_opa {
+ __be32 dlid;
+ __be32 slid;
+ u8 raw_traffic;
+ u8 l2_8B;
+ u8 l2_10B;
+ u8 l2_9B;
+ u8 l2_16B;
+ u8 qos_type;
+ u8 qos_priority;
+};
+
+struct sa_path_rec {
+ union ib_gid dgid;
+ union ib_gid sgid;
+ __be64 service_id;
+ /* reserved */
+ __be32 flow_label;
+ u8 hop_limit;
+ u8 traffic_class;
+ u8 reversible;
+ u8 numb_path;
+ __be16 pkey;
+ __be16 qos_class;
+ u8 sl;
+ u8 mtu_selector;
+ u8 mtu;
+ u8 rate_selector;
+ u8 rate;
+ u8 packet_life_time_selector;
+ u8 packet_life_time;
+ u8 preference;
+ union {
+ struct sa_path_rec_ib ib;
+ struct sa_path_rec_roce roce;
+ struct sa_path_rec_opa opa;
+ };
+ enum sa_path_rec_type rec_type;
+};
+
+static inline enum ib_gid_type
+ sa_conv_pathrec_to_gid_type(struct sa_path_rec *rec)
+{
+ switch (rec->rec_type) {
+ case SA_PATH_REC_TYPE_ROCE_V1:
+ return IB_GID_TYPE_ROCE;
+ case SA_PATH_REC_TYPE_ROCE_V2:
+ return IB_GID_TYPE_ROCE_UDP_ENCAP;
+ default:
+ return IB_GID_TYPE_IB;
+ }
+}
+
+static inline enum sa_path_rec_type
+ sa_conv_gid_to_pathrec_type(enum ib_gid_type type)
+{
+ switch (type) {
+ case IB_GID_TYPE_ROCE:
+ return SA_PATH_REC_TYPE_ROCE_V1;
+ case IB_GID_TYPE_ROCE_UDP_ENCAP:
+ return SA_PATH_REC_TYPE_ROCE_V2;
+ default:
+ return SA_PATH_REC_TYPE_IB;
+ }
+}
+
+static inline void path_conv_opa_to_ib(struct sa_path_rec *ib,
+ struct sa_path_rec *opa)
+{
+ if ((be32_to_cpu(opa->opa.dlid) >=
+ be16_to_cpu(IB_MULTICAST_LID_BASE)) ||
+ (be32_to_cpu(opa->opa.slid) >=
+ be16_to_cpu(IB_MULTICAST_LID_BASE))) {
+ /* Create OPA GID and zero out the LID */
+ ib->dgid.global.interface_id
+ = OPA_MAKE_ID(be32_to_cpu(opa->opa.dlid));
+ ib->dgid.global.subnet_prefix
+ = opa->dgid.global.subnet_prefix;
+ ib->sgid.global.interface_id
+ = OPA_MAKE_ID(be32_to_cpu(opa->opa.slid));
+ ib->dgid.global.subnet_prefix
+ = opa->dgid.global.subnet_prefix;
+ ib->ib.dlid = 0;
+
+ ib->ib.slid = 0;
+ } else {
+ ib->ib.dlid = htons(ntohl(opa->opa.dlid));
+ ib->ib.slid = htons(ntohl(opa->opa.slid));
+ }
+ ib->service_id = opa->service_id;
+ ib->ib.raw_traffic = opa->opa.raw_traffic;
+}
+
+static inline void path_conv_ib_to_opa(struct sa_path_rec *opa,
+ struct sa_path_rec *ib)
+{
+ __be32 slid, dlid;
+
+ if ((ib_is_opa_gid(&ib->sgid)) ||
+ (ib_is_opa_gid(&ib->dgid))) {
+ slid = htonl(opa_get_lid_from_gid(&ib->sgid));
+ dlid = htonl(opa_get_lid_from_gid(&ib->dgid));
+ } else {
+ slid = htonl(ntohs(ib->ib.slid));
+ dlid = htonl(ntohs(ib->ib.dlid));
+ }
+ opa->opa.slid = slid;
+ opa->opa.dlid = dlid;
+ opa->service_id = ib->service_id;
+ opa->opa.raw_traffic = ib->ib.raw_traffic;
+}
+
+/* Convert from OPA to IB path record */
+static inline void sa_convert_path_opa_to_ib(struct sa_path_rec *dest,
+ struct sa_path_rec *src)
+{
+ if (src->rec_type != SA_PATH_REC_TYPE_OPA)
+ return;
+
+ *dest = *src;
+ dest->rec_type = SA_PATH_REC_TYPE_IB;
+ path_conv_opa_to_ib(dest, src);
+}
+
+/* Convert from IB to OPA path record */
+static inline void sa_convert_path_ib_to_opa(struct sa_path_rec *dest,
+ struct sa_path_rec *src)
+{
+ if (src->rec_type != SA_PATH_REC_TYPE_IB)
+ return;
+
+ /* Do a structure copy and overwrite the relevant fields */
+ *dest = *src;
+ dest->rec_type = SA_PATH_REC_TYPE_OPA;
+ path_conv_ib_to_opa(dest, src);
+}
+
+#define IB_SA_MCMEMBER_REC_MGID IB_SA_COMP_MASK( 0)
+#define IB_SA_MCMEMBER_REC_PORT_GID IB_SA_COMP_MASK( 1)
+#define IB_SA_MCMEMBER_REC_QKEY IB_SA_COMP_MASK( 2)
+#define IB_SA_MCMEMBER_REC_MLID IB_SA_COMP_MASK( 3)
+#define IB_SA_MCMEMBER_REC_MTU_SELECTOR IB_SA_COMP_MASK( 4)
+#define IB_SA_MCMEMBER_REC_MTU IB_SA_COMP_MASK( 5)
+#define IB_SA_MCMEMBER_REC_TRAFFIC_CLASS IB_SA_COMP_MASK( 6)
+#define IB_SA_MCMEMBER_REC_PKEY IB_SA_COMP_MASK( 7)
+#define IB_SA_MCMEMBER_REC_RATE_SELECTOR IB_SA_COMP_MASK( 8)
+#define IB_SA_MCMEMBER_REC_RATE IB_SA_COMP_MASK( 9)
+#define IB_SA_MCMEMBER_REC_PACKET_LIFE_TIME_SELECTOR IB_SA_COMP_MASK(10)
+#define IB_SA_MCMEMBER_REC_PACKET_LIFE_TIME IB_SA_COMP_MASK(11)
+#define IB_SA_MCMEMBER_REC_SL IB_SA_COMP_MASK(12)
+#define IB_SA_MCMEMBER_REC_FLOW_LABEL IB_SA_COMP_MASK(13)
+#define IB_SA_MCMEMBER_REC_HOP_LIMIT IB_SA_COMP_MASK(14)
+#define IB_SA_MCMEMBER_REC_SCOPE IB_SA_COMP_MASK(15)
+#define IB_SA_MCMEMBER_REC_JOIN_STATE IB_SA_COMP_MASK(16)
+#define IB_SA_MCMEMBER_REC_PROXY_JOIN IB_SA_COMP_MASK(17)
+
+struct ib_sa_mcmember_rec {
+ union ib_gid mgid;
+ union ib_gid port_gid;
+ __be32 qkey;
+ __be16 mlid;
+ u8 mtu_selector;
+ u8 mtu;
+ u8 traffic_class;
+ __be16 pkey;
+ u8 rate_selector;
+ u8 rate;
+ u8 packet_life_time_selector;
+ u8 packet_life_time;
+ u8 sl;
+ __be32 flow_label;
+ u8 hop_limit;
+ u8 scope;
+ u8 join_state;
+ u8 proxy_join;
+};
+
+/* Service Record Component Mask Sec 15.2.5.14 Ver 1.1 */
+#define IB_SA_SERVICE_REC_SERVICE_ID IB_SA_COMP_MASK( 0)
+#define IB_SA_SERVICE_REC_SERVICE_GID IB_SA_COMP_MASK( 1)
+#define IB_SA_SERVICE_REC_SERVICE_PKEY IB_SA_COMP_MASK( 2)
+/* reserved: 3 */
+#define IB_SA_SERVICE_REC_SERVICE_LEASE IB_SA_COMP_MASK( 4)
+#define IB_SA_SERVICE_REC_SERVICE_KEY IB_SA_COMP_MASK( 5)
+#define IB_SA_SERVICE_REC_SERVICE_NAME IB_SA_COMP_MASK( 6)
+#define IB_SA_SERVICE_REC_SERVICE_DATA8_0 IB_SA_COMP_MASK( 7)
+#define IB_SA_SERVICE_REC_SERVICE_DATA8_1 IB_SA_COMP_MASK( 8)
+#define IB_SA_SERVICE_REC_SERVICE_DATA8_2 IB_SA_COMP_MASK( 9)
+#define IB_SA_SERVICE_REC_SERVICE_DATA8_3 IB_SA_COMP_MASK(10)
+#define IB_SA_SERVICE_REC_SERVICE_DATA8_4 IB_SA_COMP_MASK(11)
+#define IB_SA_SERVICE_REC_SERVICE_DATA8_5 IB_SA_COMP_MASK(12)
+#define IB_SA_SERVICE_REC_SERVICE_DATA8_6 IB_SA_COMP_MASK(13)
+#define IB_SA_SERVICE_REC_SERVICE_DATA8_7 IB_SA_COMP_MASK(14)
+#define IB_SA_SERVICE_REC_SERVICE_DATA8_8 IB_SA_COMP_MASK(15)
+#define IB_SA_SERVICE_REC_SERVICE_DATA8_9 IB_SA_COMP_MASK(16)
+#define IB_SA_SERVICE_REC_SERVICE_DATA8_10 IB_SA_COMP_MASK(17)
+#define IB_SA_SERVICE_REC_SERVICE_DATA8_11 IB_SA_COMP_MASK(18)
+#define IB_SA_SERVICE_REC_SERVICE_DATA8_12 IB_SA_COMP_MASK(19)
+#define IB_SA_SERVICE_REC_SERVICE_DATA8_13 IB_SA_COMP_MASK(20)
+#define IB_SA_SERVICE_REC_SERVICE_DATA8_14 IB_SA_COMP_MASK(21)
+#define IB_SA_SERVICE_REC_SERVICE_DATA8_15 IB_SA_COMP_MASK(22)
+#define IB_SA_SERVICE_REC_SERVICE_DATA16_0 IB_SA_COMP_MASK(23)
+#define IB_SA_SERVICE_REC_SERVICE_DATA16_1 IB_SA_COMP_MASK(24)
+#define IB_SA_SERVICE_REC_SERVICE_DATA16_2 IB_SA_COMP_MASK(25)
+#define IB_SA_SERVICE_REC_SERVICE_DATA16_3 IB_SA_COMP_MASK(26)
+#define IB_SA_SERVICE_REC_SERVICE_DATA16_4 IB_SA_COMP_MASK(27)
+#define IB_SA_SERVICE_REC_SERVICE_DATA16_5 IB_SA_COMP_MASK(28)
+#define IB_SA_SERVICE_REC_SERVICE_DATA16_6 IB_SA_COMP_MASK(29)
+#define IB_SA_SERVICE_REC_SERVICE_DATA16_7 IB_SA_COMP_MASK(30)
+#define IB_SA_SERVICE_REC_SERVICE_DATA32_0 IB_SA_COMP_MASK(31)
+#define IB_SA_SERVICE_REC_SERVICE_DATA32_1 IB_SA_COMP_MASK(32)
+#define IB_SA_SERVICE_REC_SERVICE_DATA32_2 IB_SA_COMP_MASK(33)
+#define IB_SA_SERVICE_REC_SERVICE_DATA32_3 IB_SA_COMP_MASK(34)
+#define IB_SA_SERVICE_REC_SERVICE_DATA64_0 IB_SA_COMP_MASK(35)
+#define IB_SA_SERVICE_REC_SERVICE_DATA64_1 IB_SA_COMP_MASK(36)
+
+#define IB_DEFAULT_SERVICE_LEASE 0xFFFFFFFF
+
+struct ib_sa_service_rec {
+ u64 id;
+ union ib_gid gid;
+ __be16 pkey;
+ /* reserved */
+ u32 lease;
+ u8 key[16];
+ u8 name[64];
+ u8 data8[16];
+ u16 data16[8];
+ u32 data32[4];
+ u64 data64[2];
+};
+
+#define IB_SA_GUIDINFO_REC_LID IB_SA_COMP_MASK(0)
+#define IB_SA_GUIDINFO_REC_BLOCK_NUM IB_SA_COMP_MASK(1)
+#define IB_SA_GUIDINFO_REC_RES1 IB_SA_COMP_MASK(2)
+#define IB_SA_GUIDINFO_REC_RES2 IB_SA_COMP_MASK(3)
+#define IB_SA_GUIDINFO_REC_GID0 IB_SA_COMP_MASK(4)
+#define IB_SA_GUIDINFO_REC_GID1 IB_SA_COMP_MASK(5)
+#define IB_SA_GUIDINFO_REC_GID2 IB_SA_COMP_MASK(6)
+#define IB_SA_GUIDINFO_REC_GID3 IB_SA_COMP_MASK(7)
+#define IB_SA_GUIDINFO_REC_GID4 IB_SA_COMP_MASK(8)
+#define IB_SA_GUIDINFO_REC_GID5 IB_SA_COMP_MASK(9)
+#define IB_SA_GUIDINFO_REC_GID6 IB_SA_COMP_MASK(10)
+#define IB_SA_GUIDINFO_REC_GID7 IB_SA_COMP_MASK(11)
+
+struct ib_sa_guidinfo_rec {
+ __be16 lid;
+ u8 block_num;
+ /* reserved */
+ u8 res1;
+ __be32 res2;
+ u8 guid_info_list[64];
+};
+
+struct ib_sa_client {
+ atomic_t users;
+ struct completion comp;
+};
+
+/**
+ * ib_sa_register_client - Register an SA client.
+ */
+void ib_sa_register_client(struct ib_sa_client *client);
+
+/**
+ * ib_sa_unregister_client - Deregister an SA client.
+ * @client: Client object to deregister.
+ */
+void ib_sa_unregister_client(struct ib_sa_client *client);
+
+struct ib_sa_query;
+
+void ib_sa_cancel_query(int id, struct ib_sa_query *query);
+
+int ib_sa_path_rec_get(struct ib_sa_client *client, struct ib_device *device,
+ u8 port_num, struct sa_path_rec *rec,
+ ib_sa_comp_mask comp_mask, unsigned long timeout_ms,
+ gfp_t gfp_mask,
+ void (*callback)(int status, struct sa_path_rec *resp,
+ void *context),
+ void *context, struct ib_sa_query **query);
+
+int ib_sa_service_rec_query(struct ib_sa_client *client,
+ struct ib_device *device, u8 port_num, u8 method,
+ struct ib_sa_service_rec *rec,
+ ib_sa_comp_mask comp_mask, unsigned long timeout_ms,
+ gfp_t gfp_mask,
+ void (*callback)(int status,
+ struct ib_sa_service_rec *resp,
+ void *context),
+ void *context, struct ib_sa_query **sa_query);
+
+struct ib_sa_multicast {
+ struct ib_sa_mcmember_rec rec;
+ ib_sa_comp_mask comp_mask;
+ int (*callback)(int status,
+ struct ib_sa_multicast *multicast);
+ void *context;
+};
+
+/**
+ * ib_sa_join_multicast - Initiates a join request to the specified multicast
+ * group.
+ * @client: SA client
+ * @device: Device associated with the multicast group.
+ * @port_num: Port on the specified device to associate with the multicast
+ * group.
+ * @rec: SA multicast member record specifying group attributes.
+ * @comp_mask: Component mask indicating which group attributes of %rec are
+ * valid.
+ * @gfp_mask: GFP mask for memory allocations.
+ * @callback: User callback invoked once the join operation completes.
+ * @context: User specified context stored with the ib_sa_multicast structure.
+ *
+ * This call initiates a multicast join request with the SA for the specified
+ * multicast group. If the join operation is started successfully, it returns
+ * an ib_sa_multicast structure that is used to track the multicast operation.
+ * Users must free this structure by calling ib_free_multicast, even if the
+ * join operation later fails. (The callback status is non-zero.)
+ *
+ * If the join operation fails; status will be non-zero, with the following
+ * failures possible:
+ * -ETIMEDOUT: The request timed out.
+ * -EIO: An error occurred sending the query.
+ * -EINVAL: The MCMemberRecord values differed from the existing group's.
+ * -ENETRESET: Indicates that an fatal error has occurred on the multicast
+ * group, and the user must rejoin the group to continue using it.
+ */
+struct ib_sa_multicast *ib_sa_join_multicast(struct ib_sa_client *client,
+ struct ib_device *device, u8 port_num,
+ struct ib_sa_mcmember_rec *rec,
+ ib_sa_comp_mask comp_mask, gfp_t gfp_mask,
+ int (*callback)(int status,
+ struct ib_sa_multicast
+ *multicast),
+ void *context);
+
+/**
+ * ib_free_multicast - Frees the multicast tracking structure, and releases
+ * any reference on the multicast group.
+ * @multicast: Multicast tracking structure allocated by ib_join_multicast.
+ *
+ * This call blocks until the multicast identifier is destroyed. It may
+ * not be called from within the multicast callback; however, returning a non-
+ * zero value from the callback will result in destroying the multicast
+ * tracking structure.
+ */
+void ib_sa_free_multicast(struct ib_sa_multicast *multicast);
+
+/**
+ * ib_get_mcmember_rec - Looks up a multicast member record by its MGID and
+ * returns it if found.
+ * @device: Device associated with the multicast group.
+ * @port_num: Port on the specified device to associate with the multicast
+ * group.
+ * @mgid: MGID of multicast group.
+ * @rec: Location to copy SA multicast member record.
+ */
+int ib_sa_get_mcmember_rec(struct ib_device *device, u8 port_num,
+ union ib_gid *mgid, struct ib_sa_mcmember_rec *rec);
+
+/**
+ * ib_init_ah_from_mcmember - Initialize address handle attributes based on
+ * an SA multicast member record.
+ */
+int ib_init_ah_from_mcmember(struct ib_device *device, u8 port_num,
+ struct ib_sa_mcmember_rec *rec,
+ struct net_device *ndev,
+ enum ib_gid_type gid_type,
+ struct rdma_ah_attr *ah_attr);
+
+int ib_init_ah_attr_from_path(struct ib_device *device, u8 port_num,
+ struct sa_path_rec *rec,
+ struct rdma_ah_attr *ah_attr,
+ const struct ib_gid_attr *sgid_attr);
+
+/**
+ * ib_sa_pack_path - Conert a path record from struct ib_sa_path_rec
+ * to IB MAD wire format.
+ */
+void ib_sa_pack_path(struct sa_path_rec *rec, void *attribute);
+
+/**
+ * ib_sa_unpack_path - Convert a path record from MAD format to struct
+ * ib_sa_path_rec.
+ */
+void ib_sa_unpack_path(void *attribute, struct sa_path_rec *rec);
+
+/* Support GuidInfoRecord */
+int ib_sa_guid_info_rec_query(struct ib_sa_client *client,
+ struct ib_device *device, u8 port_num,
+ struct ib_sa_guidinfo_rec *rec,
+ ib_sa_comp_mask comp_mask, u8 method,
+ unsigned long timeout_ms, gfp_t gfp_mask,
+ void (*callback)(int status,
+ struct ib_sa_guidinfo_rec *resp,
+ void *context),
+ void *context, struct ib_sa_query **sa_query);
+
+bool ib_sa_sendonly_fullmem_support(struct ib_sa_client *client,
+ struct ib_device *device,
+ u8 port_num);
+
+static inline bool sa_path_is_roce(struct sa_path_rec *rec)
+{
+ return ((rec->rec_type == SA_PATH_REC_TYPE_ROCE_V1) ||
+ (rec->rec_type == SA_PATH_REC_TYPE_ROCE_V2));
+}
+
+static inline bool sa_path_is_opa(struct sa_path_rec *rec)
+{
+ return (rec->rec_type == SA_PATH_REC_TYPE_OPA);
+}
+
+static inline void sa_path_set_slid(struct sa_path_rec *rec, u32 slid)
+{
+ if (rec->rec_type == SA_PATH_REC_TYPE_IB)
+ rec->ib.slid = cpu_to_be16(slid);
+ else if (rec->rec_type == SA_PATH_REC_TYPE_OPA)
+ rec->opa.slid = cpu_to_be32(slid);
+}
+
+static inline void sa_path_set_dlid(struct sa_path_rec *rec, u32 dlid)
+{
+ if (rec->rec_type == SA_PATH_REC_TYPE_IB)
+ rec->ib.dlid = cpu_to_be16(dlid);
+ else if (rec->rec_type == SA_PATH_REC_TYPE_OPA)
+ rec->opa.dlid = cpu_to_be32(dlid);
+}
+
+static inline void sa_path_set_raw_traffic(struct sa_path_rec *rec,
+ u8 raw_traffic)
+{
+ if (rec->rec_type == SA_PATH_REC_TYPE_IB)
+ rec->ib.raw_traffic = raw_traffic;
+ else if (rec->rec_type == SA_PATH_REC_TYPE_OPA)
+ rec->opa.raw_traffic = raw_traffic;
+}
+
+static inline __be32 sa_path_get_slid(struct sa_path_rec *rec)
+{
+ if (rec->rec_type == SA_PATH_REC_TYPE_IB)
+ return htonl(ntohs(rec->ib.slid));
+ else if (rec->rec_type == SA_PATH_REC_TYPE_OPA)
+ return rec->opa.slid;
+ return 0;
+}
+
+static inline __be32 sa_path_get_dlid(struct sa_path_rec *rec)
+{
+ if (rec->rec_type == SA_PATH_REC_TYPE_IB)
+ return htonl(ntohs(rec->ib.dlid));
+ else if (rec->rec_type == SA_PATH_REC_TYPE_OPA)
+ return rec->opa.dlid;
+ return 0;
+}
+
+static inline u8 sa_path_get_raw_traffic(struct sa_path_rec *rec)
+{
+ if (rec->rec_type == SA_PATH_REC_TYPE_IB)
+ return rec->ib.raw_traffic;
+ else if (rec->rec_type == SA_PATH_REC_TYPE_OPA)
+ return rec->opa.raw_traffic;
+ return 0;
+}
+
+static inline void sa_path_set_dmac(struct sa_path_rec *rec, u8 *dmac)
+{
+ if (sa_path_is_roce(rec))
+ memcpy(rec->roce.dmac, dmac, ETH_ALEN);
+}
+
+static inline void sa_path_set_dmac_zero(struct sa_path_rec *rec)
+{
+ if (sa_path_is_roce(rec))
+ eth_zero_addr(rec->roce.dmac);
+}
+
+static inline u8 *sa_path_get_dmac(struct sa_path_rec *rec)
+{
+ if (sa_path_is_roce(rec))
+ return rec->roce.dmac;
+ return NULL;
+}
+#endif /* IB_SA_H */
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-10 21:55:11 +0000