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RDMA/core: Introduce ib_device_ops
This change introduces the ib_device_ops structure that defines all the InfiniBand device operations in one place, so the code will be more readable and clean, unlike today when the ops are mixed with ib_device data members. The providers will need to define the supported operations and assign them using ib_set_device_ops(), that will also make the providers code more readable and clean. Signed-off-by: Kamal Heib <kamalheib1@gmail.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Kamal Heib
Jason Gunthorpe
parent
2dd8e44cb4
commit
521ed0d92a
2 changed files with 340 additions and 0 deletions
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@ -1219,6 +1219,104 @@ struct net_device *ib_get_net_dev_by_params(struct ib_device *dev,
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}
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EXPORT_SYMBOL(ib_get_net_dev_by_params);
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void ib_set_device_ops(struct ib_device *dev, const struct ib_device_ops *ops)
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{
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#define SET_DEVICE_OP(ptr, name) \
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do { \
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if (ops->name) \
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if (!((ptr)->name)) \
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(ptr)->name = ops->name; \
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} while (0)
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SET_DEVICE_OP(dev, add_gid);
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SET_DEVICE_OP(dev, alloc_dm);
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SET_DEVICE_OP(dev, alloc_fmr);
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SET_DEVICE_OP(dev, alloc_hw_stats);
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SET_DEVICE_OP(dev, alloc_mr);
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SET_DEVICE_OP(dev, alloc_mw);
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SET_DEVICE_OP(dev, alloc_pd);
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SET_DEVICE_OP(dev, alloc_rdma_netdev);
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SET_DEVICE_OP(dev, alloc_ucontext);
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SET_DEVICE_OP(dev, alloc_xrcd);
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SET_DEVICE_OP(dev, attach_mcast);
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SET_DEVICE_OP(dev, check_mr_status);
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SET_DEVICE_OP(dev, create_ah);
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SET_DEVICE_OP(dev, create_counters);
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SET_DEVICE_OP(dev, create_cq);
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SET_DEVICE_OP(dev, create_flow);
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SET_DEVICE_OP(dev, create_flow_action_esp);
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SET_DEVICE_OP(dev, create_qp);
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SET_DEVICE_OP(dev, create_rwq_ind_table);
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SET_DEVICE_OP(dev, create_srq);
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SET_DEVICE_OP(dev, create_wq);
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SET_DEVICE_OP(dev, dealloc_dm);
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SET_DEVICE_OP(dev, dealloc_fmr);
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SET_DEVICE_OP(dev, dealloc_mw);
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SET_DEVICE_OP(dev, dealloc_pd);
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SET_DEVICE_OP(dev, dealloc_ucontext);
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SET_DEVICE_OP(dev, dealloc_xrcd);
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SET_DEVICE_OP(dev, del_gid);
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SET_DEVICE_OP(dev, dereg_mr);
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SET_DEVICE_OP(dev, destroy_ah);
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SET_DEVICE_OP(dev, destroy_counters);
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SET_DEVICE_OP(dev, destroy_cq);
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SET_DEVICE_OP(dev, destroy_flow);
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SET_DEVICE_OP(dev, destroy_flow_action);
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SET_DEVICE_OP(dev, destroy_qp);
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SET_DEVICE_OP(dev, destroy_rwq_ind_table);
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SET_DEVICE_OP(dev, destroy_srq);
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SET_DEVICE_OP(dev, destroy_wq);
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SET_DEVICE_OP(dev, detach_mcast);
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SET_DEVICE_OP(dev, disassociate_ucontext);
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SET_DEVICE_OP(dev, drain_rq);
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SET_DEVICE_OP(dev, drain_sq);
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SET_DEVICE_OP(dev, get_dev_fw_str);
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SET_DEVICE_OP(dev, get_dma_mr);
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SET_DEVICE_OP(dev, get_hw_stats);
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SET_DEVICE_OP(dev, get_link_layer);
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SET_DEVICE_OP(dev, get_netdev);
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SET_DEVICE_OP(dev, get_port_immutable);
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SET_DEVICE_OP(dev, get_vector_affinity);
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SET_DEVICE_OP(dev, get_vf_config);
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SET_DEVICE_OP(dev, get_vf_stats);
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SET_DEVICE_OP(dev, map_mr_sg);
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SET_DEVICE_OP(dev, map_phys_fmr);
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SET_DEVICE_OP(dev, mmap);
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SET_DEVICE_OP(dev, modify_ah);
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SET_DEVICE_OP(dev, modify_cq);
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SET_DEVICE_OP(dev, modify_device);
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SET_DEVICE_OP(dev, modify_flow_action_esp);
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SET_DEVICE_OP(dev, modify_port);
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SET_DEVICE_OP(dev, modify_qp);
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SET_DEVICE_OP(dev, modify_srq);
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SET_DEVICE_OP(dev, modify_wq);
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SET_DEVICE_OP(dev, peek_cq);
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SET_DEVICE_OP(dev, poll_cq);
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SET_DEVICE_OP(dev, post_recv);
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SET_DEVICE_OP(dev, post_send);
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SET_DEVICE_OP(dev, post_srq_recv);
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SET_DEVICE_OP(dev, process_mad);
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SET_DEVICE_OP(dev, query_ah);
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SET_DEVICE_OP(dev, query_device);
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SET_DEVICE_OP(dev, query_gid);
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SET_DEVICE_OP(dev, query_pkey);
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SET_DEVICE_OP(dev, query_port);
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SET_DEVICE_OP(dev, query_qp);
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SET_DEVICE_OP(dev, query_srq);
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SET_DEVICE_OP(dev, rdma_netdev_get_params);
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SET_DEVICE_OP(dev, read_counters);
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SET_DEVICE_OP(dev, reg_dm_mr);
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SET_DEVICE_OP(dev, reg_user_mr);
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SET_DEVICE_OP(dev, req_ncomp_notif);
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SET_DEVICE_OP(dev, req_notify_cq);
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SET_DEVICE_OP(dev, rereg_user_mr);
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SET_DEVICE_OP(dev, resize_cq);
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SET_DEVICE_OP(dev, set_vf_guid);
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SET_DEVICE_OP(dev, set_vf_link_state);
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SET_DEVICE_OP(dev, unmap_fmr);
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}
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EXPORT_SYMBOL(ib_set_device_ops);
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static const struct rdma_nl_cbs ibnl_ls_cb_table[RDMA_NL_LS_NUM_OPS] = {
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[RDMA_NL_LS_OP_RESOLVE] = {
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.doit = ib_nl_handle_resolve_resp,
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@ -2264,6 +2264,246 @@ struct ib_counters_read_attr {
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struct uverbs_attr_bundle;
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/**
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* struct ib_device_ops - InfiniBand device operations
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* This structure defines all the InfiniBand device operations, providers will
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* need to define the supported operations, otherwise they will be set to null.
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*/
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struct ib_device_ops {
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int (*post_send)(struct ib_qp *qp, const struct ib_send_wr *send_wr,
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const struct ib_send_wr **bad_send_wr);
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int (*post_recv)(struct ib_qp *qp, const struct ib_recv_wr *recv_wr,
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const struct ib_recv_wr **bad_recv_wr);
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void (*drain_rq)(struct ib_qp *qp);
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void (*drain_sq)(struct ib_qp *qp);
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int (*poll_cq)(struct ib_cq *cq, int num_entries, struct ib_wc *wc);
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int (*peek_cq)(struct ib_cq *cq, int wc_cnt);
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int (*req_notify_cq)(struct ib_cq *cq, enum ib_cq_notify_flags flags);
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int (*req_ncomp_notif)(struct ib_cq *cq, int wc_cnt);
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int (*post_srq_recv)(struct ib_srq *srq,
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const struct ib_recv_wr *recv_wr,
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const struct ib_recv_wr **bad_recv_wr);
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int (*process_mad)(struct ib_device *device, int process_mad_flags,
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u8 port_num, const struct ib_wc *in_wc,
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const struct ib_grh *in_grh,
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const struct ib_mad_hdr *in_mad, size_t in_mad_size,
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struct ib_mad_hdr *out_mad, size_t *out_mad_size,
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u16 *out_mad_pkey_index);
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int (*query_device)(struct ib_device *device,
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struct ib_device_attr *device_attr,
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struct ib_udata *udata);
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int (*modify_device)(struct ib_device *device, int device_modify_mask,
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struct ib_device_modify *device_modify);
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void (*get_dev_fw_str)(struct ib_device *device, char *str);
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const struct cpumask *(*get_vector_affinity)(struct ib_device *ibdev,
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int comp_vector);
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int (*query_port)(struct ib_device *device, u8 port_num,
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struct ib_port_attr *port_attr);
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int (*modify_port)(struct ib_device *device, u8 port_num,
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int port_modify_mask,
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struct ib_port_modify *port_modify);
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/**
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* The following mandatory functions are used only at device
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* registration. Keep functions such as these at the end of this
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* structure to avoid cache line misses when accessing struct ib_device
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* in fast paths.
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*/
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int (*get_port_immutable)(struct ib_device *device, u8 port_num,
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struct ib_port_immutable *immutable);
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enum rdma_link_layer (*get_link_layer)(struct ib_device *device,
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u8 port_num);
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/**
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* When calling get_netdev, the HW vendor's driver should return the
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* net device of device @device at port @port_num or NULL if such
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* a net device doesn't exist. The vendor driver should call dev_hold
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* on this net device. The HW vendor's device driver must guarantee
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* that this function returns NULL before the net device has finished
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* NETDEV_UNREGISTER state.
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*/
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struct net_device *(*get_netdev)(struct ib_device *device, u8 port_num);
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/**
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* rdma netdev operation
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*
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* Driver implementing alloc_rdma_netdev or rdma_netdev_get_params
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* must return -EOPNOTSUPP if it doesn't support the specified type.
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*/
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struct net_device *(*alloc_rdma_netdev)(
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struct ib_device *device, u8 port_num, enum rdma_netdev_t type,
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const char *name, unsigned char name_assign_type,
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void (*setup)(struct net_device *));
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int (*rdma_netdev_get_params)(struct ib_device *device, u8 port_num,
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enum rdma_netdev_t type,
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struct rdma_netdev_alloc_params *params);
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/**
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* query_gid should be return GID value for @device, when @port_num
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* link layer is either IB or iWarp. It is no-op if @port_num port
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* is RoCE link layer.
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*/
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int (*query_gid)(struct ib_device *device, u8 port_num, int index,
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union ib_gid *gid);
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/**
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* When calling add_gid, the HW vendor's driver should add the gid
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* of device of port at gid index available at @attr. Meta-info of
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* that gid (for example, the network device related to this gid) is
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* available at @attr. @context allows the HW vendor driver to store
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* extra information together with a GID entry. The HW vendor driver may
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* allocate memory to contain this information and store it in @context
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* when a new GID entry is written to. Params are consistent until the
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* next call of add_gid or delete_gid. The function should return 0 on
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* success or error otherwise. The function could be called
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* concurrently for different ports. This function is only called when
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* roce_gid_table is used.
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*/
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int (*add_gid)(const struct ib_gid_attr *attr, void **context);
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/**
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* When calling del_gid, the HW vendor's driver should delete the
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* gid of device @device at gid index gid_index of port port_num
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* available in @attr.
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* Upon the deletion of a GID entry, the HW vendor must free any
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* allocated memory. The caller will clear @context afterwards.
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* This function is only called when roce_gid_table is used.
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*/
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int (*del_gid)(const struct ib_gid_attr *attr, void **context);
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int (*query_pkey)(struct ib_device *device, u8 port_num, u16 index,
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u16 *pkey);
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struct ib_ucontext *(*alloc_ucontext)(struct ib_device *device,
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struct ib_udata *udata);
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int (*dealloc_ucontext)(struct ib_ucontext *context);
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int (*mmap)(struct ib_ucontext *context, struct vm_area_struct *vma);
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void (*disassociate_ucontext)(struct ib_ucontext *ibcontext);
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struct ib_pd *(*alloc_pd)(struct ib_device *device,
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struct ib_ucontext *context,
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struct ib_udata *udata);
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int (*dealloc_pd)(struct ib_pd *pd);
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struct ib_ah *(*create_ah)(struct ib_pd *pd,
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struct rdma_ah_attr *ah_attr,
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struct ib_udata *udata);
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int (*modify_ah)(struct ib_ah *ah, struct rdma_ah_attr *ah_attr);
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int (*query_ah)(struct ib_ah *ah, struct rdma_ah_attr *ah_attr);
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int (*destroy_ah)(struct ib_ah *ah);
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struct ib_srq *(*create_srq)(struct ib_pd *pd,
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struct ib_srq_init_attr *srq_init_attr,
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struct ib_udata *udata);
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int (*modify_srq)(struct ib_srq *srq, struct ib_srq_attr *srq_attr,
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enum ib_srq_attr_mask srq_attr_mask,
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struct ib_udata *udata);
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int (*query_srq)(struct ib_srq *srq, struct ib_srq_attr *srq_attr);
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int (*destroy_srq)(struct ib_srq *srq);
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struct ib_qp *(*create_qp)(struct ib_pd *pd,
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struct ib_qp_init_attr *qp_init_attr,
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struct ib_udata *udata);
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int (*modify_qp)(struct ib_qp *qp, struct ib_qp_attr *qp_attr,
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int qp_attr_mask, struct ib_udata *udata);
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int (*query_qp)(struct ib_qp *qp, struct ib_qp_attr *qp_attr,
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int qp_attr_mask, struct ib_qp_init_attr *qp_init_attr);
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int (*destroy_qp)(struct ib_qp *qp);
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struct ib_cq *(*create_cq)(struct ib_device *device,
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const struct ib_cq_init_attr *attr,
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struct ib_ucontext *context,
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struct ib_udata *udata);
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int (*modify_cq)(struct ib_cq *cq, u16 cq_count, u16 cq_period);
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int (*destroy_cq)(struct ib_cq *cq);
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int (*resize_cq)(struct ib_cq *cq, int cqe, struct ib_udata *udata);
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struct ib_mr *(*get_dma_mr)(struct ib_pd *pd, int mr_access_flags);
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struct ib_mr *(*reg_user_mr)(struct ib_pd *pd, u64 start, u64 length,
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u64 virt_addr, int mr_access_flags,
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struct ib_udata *udata);
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int (*rereg_user_mr)(struct ib_mr *mr, int flags, u64 start, u64 length,
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u64 virt_addr, int mr_access_flags,
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struct ib_pd *pd, struct ib_udata *udata);
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int (*dereg_mr)(struct ib_mr *mr);
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struct ib_mr *(*alloc_mr)(struct ib_pd *pd, enum ib_mr_type mr_type,
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u32 max_num_sg);
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int (*map_mr_sg)(struct ib_mr *mr, struct scatterlist *sg, int sg_nents,
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unsigned int *sg_offset);
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int (*check_mr_status)(struct ib_mr *mr, u32 check_mask,
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struct ib_mr_status *mr_status);
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struct ib_mw *(*alloc_mw)(struct ib_pd *pd, enum ib_mw_type type,
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struct ib_udata *udata);
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int (*dealloc_mw)(struct ib_mw *mw);
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struct ib_fmr *(*alloc_fmr)(struct ib_pd *pd, int mr_access_flags,
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struct ib_fmr_attr *fmr_attr);
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int (*map_phys_fmr)(struct ib_fmr *fmr, u64 *page_list, int list_len,
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u64 iova);
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int (*unmap_fmr)(struct list_head *fmr_list);
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int (*dealloc_fmr)(struct ib_fmr *fmr);
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int (*attach_mcast)(struct ib_qp *qp, union ib_gid *gid, u16 lid);
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int (*detach_mcast)(struct ib_qp *qp, union ib_gid *gid, u16 lid);
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struct ib_xrcd *(*alloc_xrcd)(struct ib_device *device,
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struct ib_ucontext *ucontext,
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struct ib_udata *udata);
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int (*dealloc_xrcd)(struct ib_xrcd *xrcd);
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struct ib_flow *(*create_flow)(struct ib_qp *qp,
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struct ib_flow_attr *flow_attr,
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int domain, struct ib_udata *udata);
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int (*destroy_flow)(struct ib_flow *flow_id);
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struct ib_flow_action *(*create_flow_action_esp)(
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struct ib_device *device,
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const struct ib_flow_action_attrs_esp *attr,
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struct uverbs_attr_bundle *attrs);
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int (*destroy_flow_action)(struct ib_flow_action *action);
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int (*modify_flow_action_esp)(
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struct ib_flow_action *action,
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const struct ib_flow_action_attrs_esp *attr,
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struct uverbs_attr_bundle *attrs);
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int (*set_vf_link_state)(struct ib_device *device, int vf, u8 port,
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int state);
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int (*get_vf_config)(struct ib_device *device, int vf, u8 port,
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struct ifla_vf_info *ivf);
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int (*get_vf_stats)(struct ib_device *device, int vf, u8 port,
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struct ifla_vf_stats *stats);
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int (*set_vf_guid)(struct ib_device *device, int vf, u8 port, u64 guid,
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int type);
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struct ib_wq *(*create_wq)(struct ib_pd *pd,
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struct ib_wq_init_attr *init_attr,
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struct ib_udata *udata);
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int (*destroy_wq)(struct ib_wq *wq);
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int (*modify_wq)(struct ib_wq *wq, struct ib_wq_attr *attr,
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u32 wq_attr_mask, struct ib_udata *udata);
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struct ib_rwq_ind_table *(*create_rwq_ind_table)(
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struct ib_device *device,
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struct ib_rwq_ind_table_init_attr *init_attr,
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struct ib_udata *udata);
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int (*destroy_rwq_ind_table)(struct ib_rwq_ind_table *wq_ind_table);
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struct ib_dm *(*alloc_dm)(struct ib_device *device,
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struct ib_ucontext *context,
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struct ib_dm_alloc_attr *attr,
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struct uverbs_attr_bundle *attrs);
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int (*dealloc_dm)(struct ib_dm *dm);
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struct ib_mr *(*reg_dm_mr)(struct ib_pd *pd, struct ib_dm *dm,
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struct ib_dm_mr_attr *attr,
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struct uverbs_attr_bundle *attrs);
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struct ib_counters *(*create_counters)(
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struct ib_device *device, struct uverbs_attr_bundle *attrs);
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int (*destroy_counters)(struct ib_counters *counters);
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int (*read_counters)(struct ib_counters *counters,
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struct ib_counters_read_attr *counters_read_attr,
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struct uverbs_attr_bundle *attrs);
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/**
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* alloc_hw_stats - Allocate a struct rdma_hw_stats and fill in the
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* driver initialized data. The struct is kfree()'ed by the sysfs
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* core when the device is removed. A lifespan of -1 in the return
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* struct tells the core to set a default lifespan.
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*/
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struct rdma_hw_stats *(*alloc_hw_stats)(struct ib_device *device,
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u8 port_num);
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/**
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* get_hw_stats - Fill in the counter value(s) in the stats struct.
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* @index - The index in the value array we wish to have updated, or
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* num_counters if we want all stats updated
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* Return codes -
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* < 0 - Error, no counters updated
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* index - Updated the single counter pointed to by index
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* num_counters - Updated all counters (will reset the timestamp
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* and prevent further calls for lifespan milliseconds)
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* Drivers are allowed to update all counters in leiu of just the
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* one given in index at their option
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*/
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int (*get_hw_stats)(struct ib_device *device,
|
||||
struct rdma_hw_stats *stats, u8 port, int index);
|
||||
};
|
||||
|
||||
struct ib_device {
|
||||
/* Do not access @dma_device directly from ULP nor from HW drivers. */
|
||||
struct device *dma_device;
|
||||
|
|
@ -2667,6 +2907,8 @@ void ib_unregister_client(struct ib_client *client);
|
|||
void *ib_get_client_data(struct ib_device *device, struct ib_client *client);
|
||||
void ib_set_client_data(struct ib_device *device, struct ib_client *client,
|
||||
void *data);
|
||||
void ib_set_device_ops(struct ib_device *device,
|
||||
const struct ib_device_ops *ops);
|
||||
|
||||
#if IS_ENABLED(CONFIG_INFINIBAND_USER_ACCESS)
|
||||
int rdma_user_mmap_io(struct ib_ucontext *ucontext, struct vm_area_struct *vma,
|
||||
|
|
|
|||
Loading…
Reference in a new issue