diff options
Diffstat (limited to 'include/uapi/rdma/rdma_user_rxe.h')
| -rw-r--r-- | include/uapi/rdma/rdma_user_rxe.h | 61 |
1 files changed, 53 insertions, 8 deletions
diff --git a/include/uapi/rdma/rdma_user_rxe.h b/include/uapi/rdma/rdma_user_rxe.h index aae2e696bb38..73f679dfd2df 100644 --- a/include/uapi/rdma/rdma_user_rxe.h +++ b/include/uapi/rdma/rdma_user_rxe.h @@ -39,6 +39,11 @@ #include <linux/in.h> #include <linux/in6.h> +enum { + RXE_NETWORK_TYPE_IPV4 = 1, + RXE_NETWORK_TYPE_IPV6 = 2, +}; + union rxe_gid { __u8 raw[16]; struct { @@ -57,6 +62,7 @@ struct rxe_global_route { struct rxe_av { __u8 port_num; + /* From RXE_NETWORK_TYPE_* */ __u8 network_type; __u8 dmac[6]; struct rxe_global_route grh; @@ -68,7 +74,7 @@ struct rxe_av { struct rxe_send_wr { __aligned_u64 wr_id; - __u32 num_sge; + __u32 reserved; __u32 opcode; __u32 send_flags; union { @@ -92,16 +98,30 @@ struct rxe_send_wr { __u32 remote_qpn; __u32 remote_qkey; __u16 pkey_index; + __u16 reserved; + __u32 ah_num; + __u32 pad[4]; + struct rxe_av av; } ud; + struct { + __aligned_u64 addr; + __aligned_u64 length; + __u32 mr_lkey; + __u32 mw_rkey; + __u32 rkey; + __u32 access; + } mw; /* reg is only used by the kernel and is not part of the uapi */ +#ifdef __KERNEL__ struct { union { struct ib_mr *mr; __aligned_u64 reserved; }; - __u32 key; - __u32 access; + __u32 key; + __u32 access; } reg; +#endif } wr; }; @@ -112,7 +132,7 @@ struct rxe_sge { }; struct mminfo { - __aligned_u64 offset; + __aligned_u64 offset; __u32 size; __u32 pad; }; @@ -125,14 +145,13 @@ struct rxe_dma_info { __u32 sge_offset; __u32 reserved; union { - __u8 inline_data[0]; - struct rxe_sge sge[0]; + __DECLARE_FLEX_ARRAY(__u8, inline_data); + __DECLARE_FLEX_ARRAY(struct rxe_sge, sge); }; }; struct rxe_send_wqe { struct rxe_send_wr wr; - struct rxe_av av; __u32 status; __u32 state; __aligned_u64 iova; @@ -147,11 +166,16 @@ struct rxe_send_wqe { struct rxe_recv_wqe { __aligned_u64 wr_id; - __u32 num_sge; + __u32 reserved; __u32 padding; struct rxe_dma_info dma; }; +struct rxe_create_ah_resp { + __u32 ah_num; + __u32 reserved; +}; + struct rxe_create_cq_resp { struct mminfo mi; }; @@ -175,4 +199,25 @@ struct rxe_modify_srq_cmd { __aligned_u64 mmap_info_addr; }; +/* This data structure is stored at the base of work and + * completion queues shared between user space and kernel space. + * It contains the producer and consumer indices. Is also + * contains a copy of the queue size parameters for user space + * to use but the kernel must use the parameters in the + * rxe_queue struct. For performance reasons arrange to have + * producer and consumer indices in separate cache lines + * the kernel should always mask the indices to avoid accessing + * memory outside of the data area + */ +struct rxe_queue_buf { + __u32 log2_elem_size; + __u32 index_mask; + __u32 pad_1[30]; + __u32 producer_index; + __u32 pad_2[31]; + __u32 consumer_index; + __u32 pad_3[31]; + __u8 data[]; +}; + #endif /* RDMA_USER_RXE_H */ |