Messages in this thread Patch in this message | | | From | Konstantin Taranov <> | Subject | [PATCH rdma-next 1/2] RDMA/mana_ib: Allow registration of DMA-mapped memory in PDs | Date | Wed, 17 Apr 2024 07:20:58 -0700 |
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From: Konstantin Taranov <kotaranov@microsoft.com>
Allow the HW to register DMA-mapped memory for kernel-level PDs.
Signed-off-by: Konstantin Taranov <kotaranov@microsoft.com> --- drivers/infiniband/hw/mana/main.c | 3 +++ include/net/mana/gdma.h | 1 + 2 files changed, 4 insertions(+)
diff --git a/drivers/infiniband/hw/mana/main.c b/drivers/infiniband/hw/mana/main.c index b31dcff32699..820af42d1fe1 100644 --- a/drivers/infiniband/hw/mana/main.c +++ b/drivers/infiniband/hw/mana/main.c @@ -82,6 +82,9 @@ int mana_ib_alloc_pd(struct ib_pd *ibpd, struct ib_udata *udata) mana_gd_init_req_hdr(&req.hdr, GDMA_CREATE_PD, sizeof(req), sizeof(resp)); + if (!udata) + flags |= GDMA_PD_FLAG_ALLOW_GPA_MR; + req.flags = flags; err = mana_gd_send_request(gc, sizeof(req), &req, sizeof(resp), &resp); diff --git a/include/net/mana/gdma.h b/include/net/mana/gdma.h index 27684135bb4d..8d796a30ddde 100644 --- a/include/net/mana/gdma.h +++ b/include/net/mana/gdma.h @@ -762,6 +762,7 @@ struct gdma_destroy_dma_region_req { enum gdma_pd_flags { GDMA_PD_FLAG_INVALID = 0, + GDMA_PD_FLAG_ALLOW_GPA_MR = 1, }; struct gdma_create_pd_req { -- 2.43.0
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