From patchwork Thu Sep 5 06:27:45 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Saeed Mahameed X-Patchwork-Id: 13791773 X-Patchwork-Delegate: kuba@kernel.org 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 CCB1F190686 for ; Thu, 5 Sep 2024 06:28:08 +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=1725517688; cv=none; b=fD3ZmLVnXrxhxhI/teH4INsLWE7fOzGDA//2u3Nm0nuJi1ONciF3D+cpREBP5NEZoA1mrxDk1Xfmwu2p7vjRqFRg1gRPoUKdpZIhpnDTwoG7D3+xHOdwGgHdc6u9jlSJiKFc2LPnmCgUHLdJpZUP0VM3Negi4qSGEuzv2siMSoc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725517688; c=relaxed/simple; bh=Kck1AqJAfrrUoldefvTkOAf0Wfo67hyzJWncTBseFRo=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=jJ0migLvY6MlC9r9EFu5IMXImfwemndMped4IJDLnpN+jGvjRJNg9+/7s8vncpqrcoTtbinjA/7eNhDykOoNwwUQ/GofGDoZQByWC6yWnTk6qmDBa93kON5JMNz9DbpM48q/xq11BRm+dt9Pp0MFS9VlopWlWmgvIvNa++axbcU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=BxmGUGfm; 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="BxmGUGfm" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 98B79C4CEC4; Thu, 5 Sep 2024 06:28:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1725517688; bh=Kck1AqJAfrrUoldefvTkOAf0Wfo67hyzJWncTBseFRo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=BxmGUGfmuUBXv5VQ6l6t/mSngS4F0hvxBIMDq9MhRPQIk8Qw0tHMmUkh1wgycsy7l U4Pi9gMA8HV/lXa44OOYSuLcl27YB6YGps3T4yQSYug2j8+bCgTyUWYtVftnIotO6n 75fmJk9bH85lt51UXyByxJAYSn8jKxwwReszQyiAo7OOQuK4M0JaAJ1xcMEx4zvjF4 lLIAM/Z53VFyS3uM6/oIb6W1TmwYmgf/jEUFMVvvT0XSIoIn8WX8pttAaDaMj5x+hN LHn/Reg8V/iTWVCSUNEPTdU2y/QLtqJyF2cZxKClDPDsoc9bWk/6iCiextUfO+ZuvA 3d6LVDDg9lFQw== From: Saeed Mahameed To: "David S. Miller" , Jakub Kicinski , Paolo Abeni , Eric Dumazet Cc: Saeed Mahameed , netdev@vger.kernel.org, Tariq Toukan , Gal Pressman , Leon Romanovsky , Yevgeny Kliteynik , Hamdan Agbariya Subject: [net-next V2 10/15] net/mlx5: HWS, added vport handling Date: Wed, 4 Sep 2024 23:27:45 -0700 Message-ID: <20240905062752.10883-11-saeed@kernel.org> X-Mailer: git-send-email 2.46.0 In-Reply-To: <20240905062752.10883-1-saeed@kernel.org> References: <20240905062752.10883-1-saeed@kernel.org> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Patchwork-Delegate: kuba@kernel.org From: Yevgeny Kliteynik Vport is a virtual eswitch port that is associated with its virtual function (VF), physical function (PF) or sub-function (SF). This patch adds handling of vports in HWS. Reviewed-by: Hamdan Agbariya Signed-off-by: Yevgeny Kliteynik Signed-off-by: Saeed Mahameed --- .../mlx5/core/steering/hws/mlx5hws_vport.c | 86 +++++++++++++++++++ .../mlx5/core/steering/hws/mlx5hws_vport.h | 13 +++ 2 files changed, 99 insertions(+) create mode 100644 drivers/net/ethernet/mellanox/mlx5/core/steering/hws/mlx5hws_vport.c create mode 100644 drivers/net/ethernet/mellanox/mlx5/core/steering/hws/mlx5hws_vport.h diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/mlx5hws_vport.c b/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/mlx5hws_vport.c new file mode 100644 index 000000000000..faf42421c43f --- /dev/null +++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/mlx5hws_vport.c @@ -0,0 +1,86 @@ +// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB +/* Copyright (c) 2024 NVIDIA Corporation & Affiliates */ + +#include "mlx5hws_internal.h" + +int mlx5hws_vport_init_vports(struct mlx5hws_context *ctx) +{ + int ret; + + if (!ctx->caps->eswitch_manager) + return 0; + + xa_init(&ctx->vports.vport_gvmi_xa); + + /* Set gvmi for eswitch manager and uplink vports only. Rest of the vports + * (vport 0 of other function, VFs and SFs) will be queried dynamically. + */ + + ret = mlx5hws_cmd_query_gvmi(ctx->mdev, false, 0, &ctx->vports.esw_manager_gvmi); + if (ret) + return ret; + + ctx->vports.uplink_gvmi = 0; + return 0; +} + +void mlx5hws_vport_uninit_vports(struct mlx5hws_context *ctx) +{ + if (ctx->caps->eswitch_manager) + xa_destroy(&ctx->vports.vport_gvmi_xa); +} + +static int hws_vport_add_gvmi(struct mlx5hws_context *ctx, u16 vport) +{ + u16 vport_gvmi; + int ret; + + ret = mlx5hws_cmd_query_gvmi(ctx->mdev, true, vport, &vport_gvmi); + if (ret) + return -EINVAL; + + ret = xa_insert(&ctx->vports.vport_gvmi_xa, vport, + xa_mk_value(vport_gvmi), GFP_KERNEL); + if (ret) + mlx5hws_dbg(ctx, "Couldn't insert new vport gvmi into xarray (%d)\n", ret); + + return ret; +} + +static bool hws_vport_is_esw_mgr_vport(struct mlx5hws_context *ctx, u16 vport) +{ + return ctx->caps->is_ecpf ? vport == MLX5_VPORT_ECPF : + vport == MLX5_VPORT_PF; +} + +int mlx5hws_vport_get_gvmi(struct mlx5hws_context *ctx, u16 vport, u16 *vport_gvmi) +{ + void *entry; + int ret; + + if (!ctx->caps->eswitch_manager) + return -EINVAL; + + if (hws_vport_is_esw_mgr_vport(ctx, vport)) { + *vport_gvmi = ctx->vports.esw_manager_gvmi; + return 0; + } + + if (vport == MLX5_VPORT_UPLINK) { + *vport_gvmi = ctx->vports.uplink_gvmi; + return 0; + } + +load_entry: + entry = xa_load(&ctx->vports.vport_gvmi_xa, vport); + + if (!xa_is_value(entry)) { + ret = hws_vport_add_gvmi(ctx, vport); + if (ret && ret != -EBUSY) + return ret; + goto load_entry; + } + + *vport_gvmi = (u16)xa_to_value(entry); + return 0; +} diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/mlx5hws_vport.h b/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/mlx5hws_vport.h new file mode 100644 index 000000000000..0912fc166b3a --- /dev/null +++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/mlx5hws_vport.h @@ -0,0 +1,13 @@ +/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */ +/* Copyright (c) 2024 NVIDIA Corporation & Affiliates */ + +#ifndef MLX5HWS_VPORT_H_ +#define MLX5HWS_VPORT_H_ + +int mlx5hws_vport_init_vports(struct mlx5hws_context *ctx); + +void mlx5hws_vport_uninit_vports(struct mlx5hws_context *ctx); + +int mlx5hws_vport_get_gvmi(struct mlx5hws_context *ctx, u16 vport, u16 *vport_gvmi); + +#endif /* MLX5HWS_VPORT_H_ */