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| author | Yishai Hadas <yishaih@mellanox.com> | 2016-02-08 14:43:20 +0200 |
|---|---|---|
| committer | Yishai Hadas <yishaih@mellanox.com> | 2016-05-17 16:40:14 +0300 |
| commit | 568c67c878c2d8d9a085daf5a789ff8638f5d4a9 (patch) | |
| tree | fbac53a1db1d472a0c89c2ae42081980b11f877e | |
| parent | 6148efe68f5f3e5e767d309f2bb29149489c29b2 (diff) | |
| download | libibverbs-568c67c878c2d8d9a085daf5a789ff8638f5d4a9.tar.gz | |
Add bind/unbind support for Memory Window type two
To bind:
Application should directly post bind WR to the
QP using ibv_post_send.
To unbind/invalidate there are 2 options, local and remote
invalidations.
Local invalidation:
Send a work request where the immediate data contains the
MW's R_key and the opcode is IBV_WR_LOCAL_INV.
Upon success a completion with opcode of IBV_WC_LOCAL_INV is polled.
Remote invalidation:
Send with invalidate can be used to invalidate a remote memory
key.
The invalidation is done by posting a send work request, where the
opcode is IBV_WR_SEND_WITH_INV and the immediate data
contains the R_key.
Upon success, the responder's work completion will contain the
invalidated R_key in its immediate data.
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
| -rw-r--r-- | include/infiniband/verbs.h | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/include/infiniband/verbs.h b/include/infiniband/verbs.h index bdc8633..9a3cee9 100644 --- a/include/infiniband/verbs.h +++ b/include/infiniband/verbs.h @@ -344,6 +344,7 @@ enum ibv_wc_opcode { IBV_WC_COMP_SWAP, IBV_WC_FETCH_ADD, IBV_WC_BIND_MW, + IBV_WC_LOCAL_INV, /* * Set value of IBV_WC_RECV so consumers can test if a completion is a * receive by testing (opcode & IBV_WC_RECV). @@ -359,7 +360,8 @@ enum { enum ibv_wc_flags { IBV_WC_GRH = 1 << 0, IBV_WC_WITH_IMM = 1 << 1, - IBV_WC_IP_CSUM_OK = 1 << IBV_WC_IP_CSUM_OK_SHIFT + IBV_WC_IP_CSUM_OK = 1 << IBV_WC_IP_CSUM_OK_SHIFT, + IBV_WC_WITH_INV = 1 << 3 }; struct ibv_wc { @@ -368,7 +370,10 @@ struct ibv_wc { enum ibv_wc_opcode opcode; uint32_t vendor_err; uint32_t byte_len; - uint32_t imm_data; /* in network byte order */ + /* When (wc_flags & IBV_WC_WITH_IMM): Immediate data in network byte order. + * When (wc_flags & IBV_WC_WITH_INV): Stores the invalidated rkey. + */ + uint32_t imm_data; uint32_t qp_num; uint32_t src_qp; int wc_flags; @@ -707,7 +712,10 @@ enum ibv_wr_opcode { IBV_WR_SEND_WITH_IMM, IBV_WR_RDMA_READ, IBV_WR_ATOMIC_CMP_AND_SWP, - IBV_WR_ATOMIC_FETCH_AND_ADD + IBV_WR_ATOMIC_FETCH_AND_ADD, + IBV_WR_LOCAL_INV, + IBV_WR_BIND_MW, + IBV_WR_SEND_WITH_INV, }; enum ibv_send_flags { @@ -754,6 +762,12 @@ struct ibv_send_wr { uint32_t remote_srqn; } xrc; } qp_type; + struct { + struct ibv_mw *mw; + uint32_t rkey; + struct ibv_mw_bind_info bind_info; + } bind_mw; + }; struct ibv_recv_wr { |