From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tom Tucker Subject: [RFC PATCH] libmthca: Add support for the reg_io_mr verb. Date: Thu, 29 Jul 2010 11:36:50 -0500 Message-ID: <20100729163650.15024.66012.stgit@build.ogc.int> References: <20100729163624.15024.57249.stgit@build.ogc.int> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20100729163624.15024.57249.stgit-T4OLL4TyM9aNDNWfRnPdfg@public.gmane.org> Sender: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: rdreier-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, brandt-4OHPYypu0djtX7QSmKvirg@public.gmane.org, tom-/Yg/VP3ZvrM@public.gmane.org, swise-/Yg/VP3ZvrM@public.gmane.org List-Id: linux-rdma@vger.kernel.org From: Tom Tucker Added support for the ibv_reg_io_mr and ibv_unreg_io_mr verbs to the mthca ilbrary. Signed-off-by: Tom Tucker --- src/mthca-abi.h | 4 ++++ src/mthca.c | 2 ++ src/mthca.h | 4 ++++ src/verbs.c | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 60 insertions(+), 0 deletions(-) diff --git a/src/mthca-abi.h b/src/mthca-abi.h index 4fbd98b..c0145d6 100644 --- a/src/mthca-abi.h +++ b/src/mthca-abi.h @@ -61,6 +61,10 @@ struct mthca_reg_mr { __u32 reserved; }; +struct mthca_reg_io_mr { + struct ibv_reg_io_mr ibv_cmd; +}; + struct mthca_create_cq { struct ibv_create_cq ibv_cmd; __u32 lkey; diff --git a/src/mthca.c b/src/mthca.c index e33bf7f..8892504 100644 --- a/src/mthca.c +++ b/src/mthca.c @@ -113,6 +113,8 @@ static struct ibv_context_ops mthca_ctx_ops = { .dealloc_pd = mthca_free_pd, .reg_mr = mthca_reg_mr, .dereg_mr = mthca_dereg_mr, + .reg_io_mr = mthca_reg_io_mr, + .dereg_io_mr = mthca_dereg_io_mr, .create_cq = mthca_create_cq, .poll_cq = mthca_poll_cq, .resize_cq = mthca_resize_cq, diff --git a/src/mthca.h b/src/mthca.h index bd1e7a2..92a8649 100644 --- a/src/mthca.h +++ b/src/mthca.h @@ -312,6 +312,10 @@ struct ibv_mr *mthca_reg_mr(struct ibv_pd *pd, void *addr, size_t length, int access); int mthca_dereg_mr(struct ibv_mr *mr); +struct ibv_mr *mthca_reg_io_mr(struct ibv_pd *pd, void *addr, + size_t length, enum ibv_access_flags access); +int mthca_dereg_io_mr(struct ibv_mr *mr); + struct ibv_cq *mthca_create_cq(struct ibv_context *context, int cqe, struct ibv_comp_channel *channel, int comp_vector); diff --git a/src/verbs.c b/src/verbs.c index b6782c9..3580ad2 100644 --- a/src/verbs.c +++ b/src/verbs.c @@ -174,6 +174,56 @@ int mthca_dereg_mr(struct ibv_mr *mr) return 0; } + +static struct ibv_mr *__mthca_reg_io_mr(struct ibv_pd *pd, void *addr, + size_t length, uint64_t hca_va, + enum ibv_access_flags access) +{ + struct ibv_mr *mr; + struct mthca_reg_io_mr cmd; + int ret; + + mr = malloc(sizeof *mr); + if (!mr) + return NULL; + +#ifdef IBV_CMD_REG_MR_HAS_RESP_PARAMS + { + struct ibv_reg_io_mr_resp resp; + + ret = ibv_cmd_reg_io_mr(pd, addr, length, hca_va, access, mr, + &cmd.ibv_cmd, sizeof cmd, &resp, sizeof resp); + } +#else + ret = ibv_cmd_reg_io_mr(pd, addr, length, hca_va, access, mr, + &cmd.ibv_cmd, sizeof cmd); +#endif + if (ret) { + free(mr); + return NULL; + } + + return mr; +} + +struct ibv_mr *mthca_reg_io_mr(struct ibv_pd *pd, void *addr, + size_t length, enum ibv_access_flags access) +{ + return __mthca_reg_io_mr(pd, addr, length, (uintptr_t) addr, access); +} + +int mthca_dereg_io_mr(struct ibv_mr *mr) +{ + int ret; + + ret = ibv_cmd_dereg_mr(mr); + if (ret) + return ret; + + free(mr); + return 0; +} + static int align_cq_size(int cqe) { int nent; -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html