From nobody Tue Apr 7 13:54:23 2026 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 65DCA194C96; Wed, 25 Feb 2026 14:19:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772029189; cv=none; b=mrcp0wshDfvI04/Jbf2qSohgSYxsQ0XQvOT6X2ICi4/SrsQ/0MbFt+becAmuv6YBzr2LUBxDM9p5KiU4jTz3F/uQZ3sc9H+e1l5+yLkusYo+cCdQFYdebLxapm8IbqHF97xw3YRemC5PhoHHeaFxGklKF8anxwrN2SGuk72uAYM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772029189; c=relaxed/simple; bh=LjkNyi4+8af+Iol0lcnNqKS0v5jJtDVE376oijPOWrs=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=Xv0xtYVrc4VSM8FXY5jI9JpGJwwQQnqYfPiH+ve2/cTK9MeRoDovaR62ZFx+RM70M5iqi06VsjpwQm786R3Ytwh/Uvj8KcyBiEBiBNuob93Y/cPEQmVpurtNfk7hm542HqzglJc4YDDR5I5vni+orpp41Vde9pQk8EEQxh3+bHg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Z28al3w+; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Z28al3w+" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9BF7FC116D0; Wed, 25 Feb 2026 14:19:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772029189; bh=LjkNyi4+8af+Iol0lcnNqKS0v5jJtDVE376oijPOWrs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Z28al3w+yk1NqXv1mwU0z1g2He27OuimviiVNuR6oGDZIGnHRYJ1VG3JI7arcondh qxcEANDgPMWfy7QqGvqeKeqo45FEW/Wdo/RdUXqZOlM80OyhhTNAtNlYhlsyxP/X3e /gBgN7YGQ6OfcS0+74cAXxB9bbgzYooUT8LD+gDn9yb01GYsjBfyQJ+lQv1CZ86J6e ex1iqlnbkfO1n3ZEyq+Bz5CIJthTCzyuUOatAWZNHhoGE6itstqD/KL27q2TaisSEA enDQ7cdeZuNTpMKmdQDCB+omC41frde6TccD2VBXS/H92Gnove0clKmUOZCaDCfyCg czZzqp+jHkGcQ== From: Leon Romanovsky To: Saeed Mahameed , Leon Romanovsky , Tariq Toukan , Mark Bloch , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Jason Gunthorpe Cc: linux-rdma@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Maher Sanalla Subject: [PATCH mlx5-next 2/6] net/mlx5: Expose TLP emulation capabilities Date: Wed, 25 Feb 2026 16:19:32 +0200 Message-ID: <20260225-var-tlp-v1-2-fe14a7ac7731@nvidia.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260225-var-tlp-v1-0-fe14a7ac7731@nvidia.com> References: <20260225-var-tlp-v1-0-fe14a7ac7731@nvidia.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" X-Mailer: b4 0.15-dev-47773 Content-Transfer-Encoding: quoted-printable From: Maher Sanalla Expose and query TLP device emulation caps on driver load. Signed-off-by: Maher Sanalla Signed-off-by: Leon Romanovsky --- drivers/net/ethernet/mellanox/mlx5/core/fw.c | 6 ++++++ drivers/net/ethernet/mellanox/mlx5/core/main.c | 1 + include/linux/mlx5/device.h | 9 +++++++++ 3 files changed, 16 insertions(+) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fw.c b/drivers/net/eth= ernet/mellanox/mlx5/core/fw.c index eeb4437975f2..55249f405841 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/fw.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/fw.c @@ -255,6 +255,12 @@ int mlx5_query_hca_caps(struct mlx5_core_dev *dev) return err; } =20 + if (MLX5_CAP_GEN(dev, tlp_device_emulation_manager)) { + err =3D mlx5_core_get_caps_mode(dev, MLX5_CAP_TLP_EMULATION, HCA_CAP_OPM= OD_GET_CUR); + if (err) + return err; + } + if (MLX5_CAP_GEN(dev, ipsec_offload)) { err =3D mlx5_core_get_caps_mode(dev, MLX5_CAP_IPSEC, HCA_CAP_OPMOD_GET_C= UR); if (err) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/e= thernet/mellanox/mlx5/core/main.c index fdc3ba20912e..b0bc4a7d4a93 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c @@ -1772,6 +1772,7 @@ static const int types[] =3D { MLX5_CAP_CRYPTO, MLX5_CAP_SHAMPO, MLX5_CAP_ADV_RDMA, + MLX5_CAP_TLP_EMULATION, }; =20 static void mlx5_hca_caps_free(struct mlx5_core_dev *dev) diff --git a/include/linux/mlx5/device.h b/include/linux/mlx5/device.h index b37fe39cef27..25c6b42140b2 100644 --- a/include/linux/mlx5/device.h +++ b/include/linux/mlx5/device.h @@ -1259,6 +1259,7 @@ enum mlx5_cap_type { MLX5_CAP_PORT_SELECTION =3D 0x25, MLX5_CAP_ADV_VIRTUALIZATION =3D 0x26, MLX5_CAP_ADV_RDMA =3D 0x28, + MLX5_CAP_TLP_EMULATION =3D 0x2a, /* NUM OF CAP Types */ MLX5_CAP_NUM }; @@ -1481,6 +1482,14 @@ enum mlx5_qcam_feature_groups { MLX5_GET64(virtio_emulation_cap, \ (mdev)->caps.hca[MLX5_CAP_VDPA_EMULATION]->cur, cap) =20 +#define MLX5_CAP_DEV_TLP_EMULATION(mdev, cap)\ + MLX5_GET(tlp_dev_emu_capabilities, \ + (mdev)->caps.hca[MLX5_CAP_TLP_EMULATION]->cur, cap) + +#define MLX5_CAP64_DEV_TLP_EMULATION(mdev, cap)\ + MLX5_GET64(tlp_dev_emu_capabilities, \ + (mdev)->caps.hca[MLX5_CAP_TLP_EMULATION]->cur, cap) + #define MLX5_CAP_IPSEC(mdev, cap)\ MLX5_GET(ipsec_cap, (mdev)->caps.hca[MLX5_CAP_IPSEC]->cur, cap) =20 --=20 2.53.0