From: Shunsuke Mie <mie@igel.co.jp> To: Zhu Yanjun <zyjzyj2000@gmail.com> Cc: "Shunsuke Mie" <mie@igel.co.jp>, "Christian König" <christian.koenig@amd.com>, "Alex Deucher" <alexander.deucher@amd.com>, "Daniel Vetter" <daniel.vetter@ffwll.ch>, "Doug Ledford" <dledford@redhat.com>, "Jason Gunthorpe" <jgg@ziepe.ca>, "Jianxin Xiong" <jianxin.xiong@intel.com>, "Leon Romanovsky" <leon@kernel.org>, "Maor Gottlieb" <maorg@nvidia.com>, "Sean Hefty" <sean.hefty@intel.com>, "Sumit Semwal" <sumit.semwal@linaro.org>, dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org, linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org, dhobsong@igel.co.jp, taki@igel.co.jp, etom@igel.co.jp Subject: [RFC PATCH v4 0/2] RDMA/rxe: Add dma-buf support Date: Mon, 22 Nov 2021 20:08:15 +0900 [thread overview] Message-ID: <20211122110817.33319-1-mie@igel.co.jp> (raw) This patch series add a dma-buf support for rxe driver. A dma-buf based memory registering has beed introduced to use the memory region that lack of associated page structures (e.g. device memory and CMA managed memory) [1]. However, to use the dma-buf based memory, each rdma device drivers require add some implementation. The rxe driver has not support yet. [1] https://www.spinics.net/lists/linux-rdma/msg98592.html To enable to use the dma-buf memory in rxe rdma device, add some changes and implementation in this patch series. This series consists of two patches. The first patch changes the IB core to support for rdma drivers that has not dma device. The secound patch adds the dma-buf support to rxe driver. Related user space RDMA library changes are provided as a separate patch. v4: * Fix warnings, unused variable and casting v3: https://www.spinics.net/lists/linux-rdma/msg106776.html * Rebase to the latest linux-rdma 'for-next' branch (5.15.0-rc6+) * Fix to use dma-buf-map helpers v2: https://www.spinics.net/lists/linux-rdma/msg105928.html * Rebase to the latest linux-rdma 'for-next' branch (5.15.0-rc1+) * Instead of using a dummy dma_device to attach dma-buf, just store dma-buf to use software RDMA driver * Use dma-buf vmap() interface * Check to pass tests of rdma-core v1: https://www.spinics.net/lists/linux-rdma/msg105376.html * The initial patch set * Use ib_device as dma_device. * Use dma-buf dynamic attach interface * Add dma-buf support to rxe device Shunsuke Mie (2): RDMA/umem: Change for rdma devices has not dma device RDMA/rxe: Add dma-buf support drivers/infiniband/core/umem_dmabuf.c | 20 ++++- drivers/infiniband/sw/rxe/rxe_loc.h | 2 + drivers/infiniband/sw/rxe/rxe_mr.c | 113 ++++++++++++++++++++++++++ drivers/infiniband/sw/rxe/rxe_verbs.c | 34 ++++++++ include/rdma/ib_umem.h | 1 + 5 files changed, 166 insertions(+), 4 deletions(-) -- 2.17.1
WARNING: multiple messages have this Message-ID (diff)
From: Shunsuke Mie <mie@igel.co.jp> To: Zhu Yanjun <zyjzyj2000@gmail.com> Cc: dhobsong@igel.co.jp, taki@igel.co.jp, "Leon Romanovsky" <leon@kernel.org>, linux-rdma@vger.kernel.org, "Daniel Vetter" <daniel.vetter@ffwll.ch>, etom@igel.co.jp, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org, "Jason Gunthorpe" <jgg@ziepe.ca>, "Doug Ledford" <dledford@redhat.com>, "Shunsuke Mie" <mie@igel.co.jp>, "Alex Deucher" <alexander.deucher@amd.com>, "Sean Hefty" <sean.hefty@intel.com>, "Maor Gottlieb" <maorg@nvidia.com>, "Christian König" <christian.koenig@amd.com>, "Jianxin Xiong" <jianxin.xiong@intel.com>, linux-media@vger.kernel.org Subject: [RFC PATCH v4 0/2] RDMA/rxe: Add dma-buf support Date: Mon, 22 Nov 2021 20:08:15 +0900 [thread overview] Message-ID: <20211122110817.33319-1-mie@igel.co.jp> (raw) This patch series add a dma-buf support for rxe driver. A dma-buf based memory registering has beed introduced to use the memory region that lack of associated page structures (e.g. device memory and CMA managed memory) [1]. However, to use the dma-buf based memory, each rdma device drivers require add some implementation. The rxe driver has not support yet. [1] https://www.spinics.net/lists/linux-rdma/msg98592.html To enable to use the dma-buf memory in rxe rdma device, add some changes and implementation in this patch series. This series consists of two patches. The first patch changes the IB core to support for rdma drivers that has not dma device. The secound patch adds the dma-buf support to rxe driver. Related user space RDMA library changes are provided as a separate patch. v4: * Fix warnings, unused variable and casting v3: https://www.spinics.net/lists/linux-rdma/msg106776.html * Rebase to the latest linux-rdma 'for-next' branch (5.15.0-rc6+) * Fix to use dma-buf-map helpers v2: https://www.spinics.net/lists/linux-rdma/msg105928.html * Rebase to the latest linux-rdma 'for-next' branch (5.15.0-rc1+) * Instead of using a dummy dma_device to attach dma-buf, just store dma-buf to use software RDMA driver * Use dma-buf vmap() interface * Check to pass tests of rdma-core v1: https://www.spinics.net/lists/linux-rdma/msg105376.html * The initial patch set * Use ib_device as dma_device. * Use dma-buf dynamic attach interface * Add dma-buf support to rxe device Shunsuke Mie (2): RDMA/umem: Change for rdma devices has not dma device RDMA/rxe: Add dma-buf support drivers/infiniband/core/umem_dmabuf.c | 20 ++++- drivers/infiniband/sw/rxe/rxe_loc.h | 2 + drivers/infiniband/sw/rxe/rxe_mr.c | 113 ++++++++++++++++++++++++++ drivers/infiniband/sw/rxe/rxe_verbs.c | 34 ++++++++ include/rdma/ib_umem.h | 1 + 5 files changed, 166 insertions(+), 4 deletions(-) -- 2.17.1
next reply other threads:[~2021-11-22 11:08 UTC|newest] Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-11-22 11:08 Shunsuke Mie [this message] 2021-11-22 11:08 ` [RFC PATCH v4 0/2] RDMA/rxe: Add dma-buf support Shunsuke Mie 2021-11-22 11:08 ` [RFC PATCH v4 1/2] RDMA/umem: Change for rdma devices has not dma device Shunsuke Mie 2021-11-22 11:08 ` Shunsuke Mie 2021-11-22 11:08 ` [RFC PATCH v4 2/2] RDMA/rxe: Add dma-buf support Shunsuke Mie 2021-11-22 11:08 ` Shunsuke Mie 2021-12-03 3:51 ` [RFC PATCH v4 0/2] " Shunsuke Mie 2021-12-03 3:51 ` Shunsuke Mie 2021-12-07 17:14 ` Jason Gunthorpe 2021-12-07 17:14 ` Jason Gunthorpe 2021-12-10 11:29 ` Shunsuke Mie 2021-12-10 11:29 ` Shunsuke Mie 2021-12-10 12:42 ` Jason Gunthorpe 2021-12-10 12:42 ` Jason Gunthorpe 2021-12-10 12:47 ` Christian König 2021-12-10 12:47 ` Christian König 2021-12-10 13:26 ` Jason Gunthorpe 2021-12-10 13:26 ` Jason Gunthorpe 2021-12-10 13:28 ` Christian König 2021-12-10 13:28 ` Christian König 2021-12-13 11:18 ` Shunsuke Mie 2021-12-13 11:18 ` Shunsuke Mie 2021-12-14 8:53 ` Christian König 2021-12-14 8:53 ` Christian König 2021-12-14 9:02 ` Shunsuke Mie 2021-12-14 9:02 ` Shunsuke Mie 2021-12-20 9:31 ` Daniel Vetter 2021-12-20 9:31 ` Daniel Vetter
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