netdev - [PATCH rdma-next v2 3/4] IB/mlx5: Expose ODP for DC capabilities to user

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20190806074807.9111-4-leon@kernel.org>
Date:   Tue,  6 Aug 2019 10:48:06 +0300
From:   Leon Romanovsky <leon@...nel.org>
To:     Doug Ledford <dledford@...hat.com>,
        Jason Gunthorpe <jgg@...lanox.com>
Cc:     Leon Romanovsky <leonro@...lanox.com>,
        RDMA mailing list <linux-rdma@...r.kernel.org>,
        Michael Guralnik <michaelgur@...lanox.com>,
        Moni Shoua <monis@...lanox.com>,
        Saeed Mahameed <saeedm@...lanox.com>,
        linux-netdev <netdev@...r.kernel.org>
Subject: [PATCH rdma-next v2 3/4] IB/mlx5: Expose ODP for DC capabilities to user

From: Michael Guralnik <michaelgur@...lanox.com>

Return ODP capabilities for DC to user in alloc_context.

Signed-off-by: Michael Guralnik <michaelgur@...lanox.com>
Reviewed-by: Moni Shoua <monis@...lanox.com>
Signed-off-by: Leon Romanovsky <leonro@...lanox.com>
---
 drivers/infiniband/hw/mlx5/main.c | 6 ++++++
 include/uapi/rdma/mlx5-abi.h      | 3 +++
 2 files changed, 9 insertions(+)

diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index 4a3d700cd783..a53e0dc7c17f 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -1954,6 +1954,12 @@ static int mlx5_ib_alloc_ucontext(struct ib_ucontext *uctx,
 		resp.response_length += sizeof(resp.dump_fill_mkey);
 	}
 
+	if (field_avail(typeof(resp), dc_odp_caps, udata->outlen)) {
+		resp.dc_odp_caps = dev->dc_odp_caps;
+		resp.comp_mask |= MLX5_IB_ALLOC_UCONTEXT_RESP_MASK_DC_ODP_CAPS;
+		resp.response_length += sizeof(resp.dc_odp_caps);
+	}
+
 	err = ib_copy_to_udata(udata, &resp, resp.response_length);
 	if (err)
 		goto out_mdev;
diff --git a/include/uapi/rdma/mlx5-abi.h b/include/uapi/rdma/mlx5-abi.h
index 624f5b53eb1f..7cab806d7fa7 100644
--- a/include/uapi/rdma/mlx5-abi.h
+++ b/include/uapi/rdma/mlx5-abi.h
@@ -98,6 +98,7 @@ struct mlx5_ib_alloc_ucontext_req_v2 {
 enum mlx5_ib_alloc_ucontext_resp_mask {
 	MLX5_IB_ALLOC_UCONTEXT_RESP_MASK_CORE_CLOCK_OFFSET = 1UL << 0,
 	MLX5_IB_ALLOC_UCONTEXT_RESP_MASK_DUMP_FILL_MKEY    = 1UL << 1,
+	MLX5_IB_ALLOC_UCONTEXT_RESP_MASK_DC_ODP_CAPS	   = 1UL << 2,
 };
 
 enum mlx5_user_cmds_supp_uhw {
@@ -147,6 +148,8 @@ struct mlx5_ib_alloc_ucontext_resp {
 	__u32	num_uars_per_page;
 	__u32	num_dyn_bfregs;
 	__u32	dump_fill_mkey;
+	__u32	dc_odp_caps;
+	__u32   reserved;
 };
 
 struct mlx5_ib_alloc_pd_resp {
-- 
2.20.1