From patchwork Sun Jun 16 16:08:35 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Leon Romanovsky X-Patchwork-Id: 13699573 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 F04171D54F; Sun, 16 Jun 2024 16:09:03 +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=1718554144; cv=none; b=bu58Wwy8xopwD6U3Dfk0O3L4ud73QkT57fc0NtNeLBYV5u1Qg9Yp4Vxu8YTs+Pgz0hWchxgOEhQw/zxSX4F3pLGlQybhfFz+gYOgMq+sWpDsJXoRfw3hbwLeWjOmmHLiNLbwCzDpwuEuRD4hzu8KK3aOxBzntUN7XPH78h2otBE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718554144; c=relaxed/simple; bh=fcoAk42ZmXSoDiFV9ibLWtLT2KUITpLHo2920iegKlg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=lS/6z7WxIpYi7GfNJBqAzDLZtzsImEQz4DzkJjANMGOmoT2te9YpkeecAoVVXWeykUPdm/D/dbt/BXAK8+QyiW/6EjC2DkGy90bgZ1TFXMZIQr07T1GRGKn7NYjbdtWIi8sTqOt0BnQkZ1J11MPRJkJiO0cHgpX1DX6FM6f49n8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=lWpeJx9W; 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="lWpeJx9W" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E735DC2BBFC; Sun, 16 Jun 2024 16:09:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1718554143; bh=fcoAk42ZmXSoDiFV9ibLWtLT2KUITpLHo2920iegKlg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=lWpeJx9WVwvNCsKGoAkabH47Vf33uu3rwZtfBOf5m2w1Wm9ViMufgDxTqkRY/SPX8 yCpvbhPyYZE0aoQUMRKFaflNjekxYk0MYf+MaK8JsYciYfWFlLJSC2pSMU9bvlWX4/ hr5zYo5xsRUV0nvvGPz2XFAiT7I4+zABWX0dpdQIioTg+aW3BXJ7hLp/hjOUHZ11Ls vQN6qESXTq4IfnhBlYc6PgGcKJG+qvY/vCwzsSwRSyfrs+hbg0apRFXfVmV06WRk1X QFFRcdAJZXpfjMZTDPOcrcQxBLEirJHa027PHDIV22Gxwt3flCopAEIrI0lKT8gktF Gzgwy9i9FZPuQ== From: Leon Romanovsky To: Jason Gunthorpe Cc: Mark Zhang , Eric Dumazet , Jakub Kicinski , linux-rdma@vger.kernel.org, netdev@vger.kernel.org, Paolo Abeni , Saeed Mahameed , Tariq Toukan Subject: [PATCH mlx5-next 03/12] RDMA/mlx5: Add support to multi-plane device and port Date: Sun, 16 Jun 2024 19:08:35 +0300 Message-ID: <7e37c06c9cb243be9ac79930cd17053903785b95.1718553901.git.leon@kernel.org> X-Mailer: git-send-email 2.45.2 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-rdma@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Mark Zhang When multi-plane is supported, a logical port, which is aggregation of multiple physical plane ports, is exposed for data transmission. Compared with a normal mlx5 IB port, this logical port supports all functionalities except Subnet Management. Signed-off-by: Mark Zhang Signed-off-by: Leon Romanovsky --- drivers/infiniband/hw/mlx5/main.c | 60 ++++++++++++++++--- drivers/infiniband/hw/mlx5/mlx5_ib.h | 2 + .../net/ethernet/mellanox/mlx5/core/vport.c | 1 + include/linux/mlx5/driver.h | 1 + 4 files changed, 55 insertions(+), 9 deletions(-) diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c index a7003316d438..55eb60715b48 100644 --- a/drivers/infiniband/hw/mlx5/main.c +++ b/drivers/infiniband/hw/mlx5/main.c @@ -1388,7 +1388,13 @@ static int mlx5_query_hca_port(struct ib_device *ibdev, u32 port, props->sm_sl = rep->sm_sl; props->state = rep->vport_state; props->phys_state = rep->port_physical_state; - props->port_cap_flags = rep->cap_mask1; + + props->port_cap_flags = rep->cap_mask1; + if (dev->num_plane) { + props->port_cap_flags |= IB_PORT_SM_DISABLED; + props->port_cap_flags &= ~IB_PORT_SM; + } + props->gid_tbl_len = mlx5_get_gid_table_len(MLX5_CAP_GEN(mdev, gid_table_size)); props->max_msg_sz = 1 << MLX5_CAP_GEN(mdev, log_max_msg); props->pkey_tbl_len = mlx5_to_sw_pkey_sz(MLX5_CAP_GEN(mdev, pkey_table_size)); @@ -2807,6 +2813,23 @@ static int mlx5_ib_event_slave_port(struct notifier_block *nb, return NOTIFY_OK; } +static int mlx5_ib_get_plane_num(struct mlx5_core_dev *mdev, u8 *num_plane) +{ + struct mlx5_hca_vport_context vport_ctx; + int err; + + *num_plane = 0; + if (!MLX5_CAP_GEN(mdev, ib_virt)) + return 0; + + err = mlx5_query_hca_vport_context(mdev, 0, 1, 0, &vport_ctx); + if (err) + return err; + + *num_plane = vport_ctx.num_plane; + return 0; +} + static int set_has_smi_cap(struct mlx5_ib_dev *dev) { struct mlx5_hca_vport_context vport_ctx; @@ -2817,10 +2840,14 @@ static int set_has_smi_cap(struct mlx5_ib_dev *dev) return 0; for (port = 1; port <= dev->num_ports; port++) { - if (!MLX5_CAP_GEN(dev->mdev, ib_virt)) { + if (dev->num_plane) { + dev->port_caps[port - 1].has_smi = false; + continue; + } else if (!MLX5_CAP_GEN(dev->mdev, ib_virt)) { dev->port_caps[port - 1].has_smi = true; continue; } + err = mlx5_query_hca_vport_context(dev->mdev, 0, port, 0, &vport_ctx); if (err) { @@ -3026,6 +3053,11 @@ static u32 get_core_cap_flags(struct ib_device *ibdev, if (rep->grh_required) ret |= RDMA_CORE_CAP_IB_GRH_REQUIRED; + if (dev->num_plane) + return ret | RDMA_CORE_CAP_PROT_IB | RDMA_CORE_CAP_IB_MAD | + RDMA_CORE_CAP_IB_CM | RDMA_CORE_CAP_IB_SA | + RDMA_CORE_CAP_AF_IB; + if (ll == IB_LINK_LAYER_INFINIBAND) return ret | RDMA_CORE_PORT_IBA_IB; @@ -4507,11 +4539,18 @@ static int mlx5r_probe(struct auxiliary_device *adev, dev = ib_alloc_device(mlx5_ib_dev, ib_dev); if (!dev) return -ENOMEM; + + if (ll == IB_LINK_LAYER_INFINIBAND) { + ret = mlx5_ib_get_plane_num(mdev, &dev->num_plane); + if (ret) + goto fail; + } + dev->port = kcalloc(num_ports, sizeof(*dev->port), GFP_KERNEL); if (!dev->port) { - ib_dealloc_device(&dev->ib_dev); - return -ENOMEM; + ret = -ENOMEM; + goto fail; } dev->mdev = mdev; @@ -4523,14 +4562,17 @@ static int mlx5r_probe(struct auxiliary_device *adev, profile = &pf_profile; ret = __mlx5_ib_add(dev, profile); - if (ret) { - kfree(dev->port); - ib_dealloc_device(&dev->ib_dev); - return ret; - } + if (ret) + goto fail_ib_add; auxiliary_set_drvdata(adev, dev); return 0; + +fail_ib_add: + kfree(dev->port); +fail: + ib_dealloc_device(&dev->ib_dev); + return ret; } static void mlx5r_remove(struct auxiliary_device *adev) diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h index a6f2b679a7e9..d97d6bc2dbaa 100644 --- a/drivers/infiniband/hw/mlx5/mlx5_ib.h +++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h @@ -1189,6 +1189,8 @@ struct mlx5_ib_dev { #ifdef CONFIG_MLX5_MACSEC struct mlx5_macsec macsec; #endif + + u8 num_plane; }; static inline struct mlx5_ib_cq *to_mibcq(struct mlx5_core_cq *mcq) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/vport.c b/drivers/net/ethernet/mellanox/mlx5/core/vport.c index 1005bb6935b6..0d5f750faa45 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/vport.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/vport.c @@ -737,6 +737,7 @@ int mlx5_query_hca_vport_context(struct mlx5_core_dev *dev, rep->grh_required = MLX5_GET_PR(hca_vport_context, ctx, grh_required); rep->sys_image_guid = MLX5_GET64_PR(hca_vport_context, ctx, system_image_guid); + rep->num_plane = MLX5_GET_PR(hca_vport_context, ctx, num_port_plane); ex: kvfree(out); diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h index 145e2fb1b832..2889ece6c808 100644 --- a/include/linux/mlx5/driver.h +++ b/include/linux/mlx5/driver.h @@ -917,6 +917,7 @@ struct mlx5_hca_vport_context { u16 qkey_violation_counter; u16 pkey_violation_counter; bool grh_required; + u8 num_plane; }; #define STRUCT_FIELD(header, field) \