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- #ifndef RDMA_CM_H
- #define RDMA_CM_H
- #include <linux/socket.h>
- #include <linux/in6.h>
- #include <rdma/ib_addr.h>
- #include <rdma/ib_sa.h>
- #include <uapi/rdma/rdma_user_cm.h>
- enum rdma_cm_event_type {
- RDMA_CM_EVENT_ADDR_RESOLVED,
- RDMA_CM_EVENT_ADDR_ERROR,
- RDMA_CM_EVENT_ROUTE_RESOLVED,
- RDMA_CM_EVENT_ROUTE_ERROR,
- RDMA_CM_EVENT_CONNECT_REQUEST,
- RDMA_CM_EVENT_CONNECT_RESPONSE,
- RDMA_CM_EVENT_CONNECT_ERROR,
- RDMA_CM_EVENT_UNREACHABLE,
- RDMA_CM_EVENT_REJECTED,
- RDMA_CM_EVENT_ESTABLISHED,
- RDMA_CM_EVENT_DISCONNECTED,
- RDMA_CM_EVENT_DEVICE_REMOVAL,
- RDMA_CM_EVENT_MULTICAST_JOIN,
- RDMA_CM_EVENT_MULTICAST_ERROR,
- RDMA_CM_EVENT_ADDR_CHANGE,
- RDMA_CM_EVENT_TIMEWAIT_EXIT
- };
- const char *__attribute_const__ rdma_event_msg(enum rdma_cm_event_type event);
- #define RDMA_IB_IP_PS_MASK 0xFFFFFFFFFFFF0000ULL
- #define RDMA_IB_IP_PS_TCP 0x0000000001060000ULL
- #define RDMA_IB_IP_PS_UDP 0x0000000001110000ULL
- #define RDMA_IB_IP_PS_IB 0x00000000013F0000ULL
- struct rdma_addr {
- struct sockaddr_storage src_addr;
- struct sockaddr_storage dst_addr;
- struct rdma_dev_addr dev_addr;
- };
- #define RDMA_PRIMARY_PATH_MAX_REC_NUM 3
- struct rdma_route {
- struct rdma_addr addr;
- struct sa_path_rec *path_rec;
-
- struct sa_path_rec *path_rec_inbound;
- struct sa_path_rec *path_rec_outbound;
-
- int num_pri_alt_paths;
- };
- struct rdma_conn_param {
- const void *private_data;
- u8 private_data_len;
- u8 responder_resources;
- u8 initiator_depth;
- u8 flow_control;
- u8 retry_count;
- u8 rnr_retry_count;
-
- u8 srq;
- u32 qp_num;
- u32 qkey;
- };
- struct rdma_ud_param {
- const void *private_data;
- u8 private_data_len;
- struct rdma_ah_attr ah_attr;
- u32 qp_num;
- u32 qkey;
- };
- struct rdma_cm_event {
- enum rdma_cm_event_type event;
- int status;
- union {
- struct rdma_conn_param conn;
- struct rdma_ud_param ud;
- } param;
- struct rdma_ucm_ece ece;
- };
- struct rdma_cm_id;
- typedef int (*rdma_cm_event_handler)(struct rdma_cm_id *id,
- struct rdma_cm_event *event);
- struct rdma_cm_id {
- struct ib_device *device;
- void *context;
- struct ib_qp *qp;
- rdma_cm_event_handler event_handler;
- struct rdma_route route;
- enum rdma_ucm_port_space ps;
- enum ib_qp_type qp_type;
- u32 port_num;
- struct work_struct net_work;
- };
- struct rdma_cm_id *
- __rdma_create_kernel_id(struct net *net, rdma_cm_event_handler event_handler,
- void *context, enum rdma_ucm_port_space ps,
- enum ib_qp_type qp_type, const char *caller);
- struct rdma_cm_id *rdma_create_user_id(rdma_cm_event_handler event_handler,
- void *context,
- enum rdma_ucm_port_space ps,
- enum ib_qp_type qp_type);
- #define rdma_create_id(net, event_handler, context, ps, qp_type) \
- __rdma_create_kernel_id(net, event_handler, context, ps, qp_type, \
- KBUILD_MODNAME)
- void rdma_destroy_id(struct rdma_cm_id *id);
- int rdma_bind_addr(struct rdma_cm_id *id, struct sockaddr *addr);
- int rdma_resolve_addr(struct rdma_cm_id *id, struct sockaddr *src_addr,
- const struct sockaddr *dst_addr,
- unsigned long timeout_ms);
- int rdma_resolve_route(struct rdma_cm_id *id, unsigned long timeout_ms);
- int rdma_create_qp(struct rdma_cm_id *id, struct ib_pd *pd,
- struct ib_qp_init_attr *qp_init_attr);
- void rdma_destroy_qp(struct rdma_cm_id *id);
- int rdma_init_qp_attr(struct rdma_cm_id *id, struct ib_qp_attr *qp_attr,
- int *qp_attr_mask);
- int rdma_connect(struct rdma_cm_id *id, struct rdma_conn_param *conn_param);
- int rdma_connect_locked(struct rdma_cm_id *id,
- struct rdma_conn_param *conn_param);
- int rdma_connect_ece(struct rdma_cm_id *id, struct rdma_conn_param *conn_param,
- struct rdma_ucm_ece *ece);
- int rdma_listen(struct rdma_cm_id *id, int backlog);
- int rdma_accept(struct rdma_cm_id *id, struct rdma_conn_param *conn_param);
- void rdma_lock_handler(struct rdma_cm_id *id);
- void rdma_unlock_handler(struct rdma_cm_id *id);
- int rdma_accept_ece(struct rdma_cm_id *id, struct rdma_conn_param *conn_param,
- struct rdma_ucm_ece *ece);
- int rdma_notify(struct rdma_cm_id *id, enum ib_event_type event);
- int rdma_reject(struct rdma_cm_id *id, const void *private_data,
- u8 private_data_len, u8 reason);
- int rdma_disconnect(struct rdma_cm_id *id);
- int rdma_join_multicast(struct rdma_cm_id *id, struct sockaddr *addr,
- u8 join_state, void *context);
- void rdma_leave_multicast(struct rdma_cm_id *id, struct sockaddr *addr);
- void rdma_set_service_type(struct rdma_cm_id *id, int tos);
- int rdma_set_reuseaddr(struct rdma_cm_id *id, int reuse);
- int rdma_set_afonly(struct rdma_cm_id *id, int afonly);
- int rdma_set_ack_timeout(struct rdma_cm_id *id, u8 timeout);
- int rdma_set_min_rnr_timer(struct rdma_cm_id *id, u8 min_rnr_timer);
-
- __be64 rdma_get_service_id(struct rdma_cm_id *id, struct sockaddr *addr);
- const char *__attribute_const__ rdma_reject_msg(struct rdma_cm_id *id,
- int reason);
- const void *rdma_consumer_reject_data(struct rdma_cm_id *id,
- struct rdma_cm_event *ev, u8 *data_len);
- void rdma_read_gids(struct rdma_cm_id *cm_id, union ib_gid *sgid,
- union ib_gid *dgid);
- struct iw_cm_id *rdma_iw_cm_id(struct rdma_cm_id *cm_id);
- struct rdma_cm_id *rdma_res_to_id(struct rdma_restrack_entry *res);
- #endif
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