diff options
Diffstat (limited to 'include/uapi/rdma/rdma_user_rxe.h')
| -rw-r--r-- | include/uapi/rdma/rdma_user_rxe.h | 123 |
1 files changed, 105 insertions, 18 deletions
diff --git a/include/uapi/rdma/rdma_user_rxe.h b/include/uapi/rdma/rdma_user_rxe.h index 1de99cfdaf7d..bb092fccb813 100644 --- a/include/uapi/rdma/rdma_user_rxe.h +++ b/include/uapi/rdma/rdma_user_rxe.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR Linux-OpenIB) */ /* * Copyright (c) 2016 Mellanox Technologies Ltd. All rights reserved. * @@ -34,6 +35,14 @@ #define RDMA_USER_RXE_H #include <linux/types.h> +#include <linux/socket.h> +#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]; @@ -53,18 +62,19 @@ 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; union { - struct sockaddr _sockaddr; struct sockaddr_in _sockaddr_in; struct sockaddr_in6 _sockaddr_in6; } sgid_addr, dgid_addr; }; struct rxe_send_wr { - __u64 wr_id; - __u32 num_sge; + __aligned_u64 wr_id; + __u32 reserved; __u32 opcode; __u32 send_flags; union { @@ -73,36 +83,63 @@ struct rxe_send_wr { } ex; union { struct { - __u64 remote_addr; + __aligned_u64 remote_addr; + __u32 length; __u32 rkey; + __u8 type; + __u8 level; + } flush; + struct { + __aligned_u64 remote_addr; + __u32 rkey; + __u32 reserved; } rdma; struct { - __u64 remote_addr; - __u64 compare_add; - __u64 swap; + __aligned_u64 remote_addr; + __aligned_u64 compare_add; + __aligned_u64 swap; __u32 rkey; + __u32 reserved; } atomic; struct { __u32 remote_qpn; __u32 remote_qkey; __u16 pkey_index; + __u16 reserved; + __u32 ah_num; + __u32 pad[4]; + struct rxe_av av; } ud; struct { - struct ib_mr *mr; - __u32 key; - int access; + __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; } reg; +#endif } wr; }; struct rxe_sge { - __u64 addr; + __aligned_u64 addr; __u32 length; __u32 lkey; }; struct mminfo { - __u64 offset; + __aligned_u64 offset; __u32 size; __u32 pad; }; @@ -113,18 +150,19 @@ struct rxe_dma_info { __u32 cur_sge; __u32 num_sge; __u32 sge_offset; + __u32 reserved; union { - __u8 inline_data[0]; - struct rxe_sge sge[0]; + __DECLARE_FLEX_ARRAY(__u8, inline_data); + __DECLARE_FLEX_ARRAY(__u8, atomic_wr); + __DECLARE_FLEX_ARRAY(struct rxe_sge, sge); }; }; struct rxe_send_wqe { struct rxe_send_wr wr; - struct rxe_av av; __u32 status; __u32 state; - __u64 iova; + __aligned_u64 iova; __u32 mask; __u32 first_psn; __u32 last_psn; @@ -135,10 +173,59 @@ struct rxe_send_wqe { }; struct rxe_recv_wqe { - __u64 wr_id; - __u32 num_sge; + __aligned_u64 wr_id; + __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; +}; + +struct rxe_resize_cq_resp { + struct mminfo mi; +}; + +struct rxe_create_qp_resp { + struct mminfo rq_mi; + struct mminfo sq_mi; +}; + +struct rxe_create_srq_resp { + struct mminfo mi; + __u32 srq_num; + __u32 reserved; +}; + +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 */ |