From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id F1DB8C7EE23 for ; Mon, 8 May 2023 11:45:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236253AbjEHLpd (ORCPT ); Mon, 8 May 2023 07:45:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37296 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236261AbjEHLpP (ORCPT ); Mon, 8 May 2023 07:45:15 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7AFA340325 for ; Mon, 8 May 2023 04:44:48 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 5AEC2636B7 for ; Mon, 8 May 2023 11:44:48 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4BD9AC433D2; Mon, 8 May 2023 11:44:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1683546287; bh=pwmzYVaT4gqjQrJWiUykfQr/PfvcNdpDai0tS7ynvZw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=mOJCCFlrtwruSZPPtZAxGRPMbVAdvVJxzYNgin8LXiFr1v+jWaJyce73GfgolNB9i 05jQTrAzPYjojalPw94SXLMgur7K7y6ve0p+52XTsI3pQJWu/C3FiYeSzfEpb6jEox sB2uNlHd93Li1/bTmFs5sBcsFGe8EvV+lV6W96GI= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Mark Bloch , Maor Gottlieb , Leon Romanovsky , Sasha Levin Subject: [PATCH 5.15 317/371] RDMA/mlx5: Fix flow counter query via DEVX Date: Mon, 8 May 2023 11:48:38 +0200 Message-Id: <20230508094824.663568634@linuxfoundation.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230508094811.912279944@linuxfoundation.org> References: <20230508094811.912279944@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Mark Bloch [ Upstream commit 3e358ea8614ddfbc59ca7a3f5dff5dde2b350b2c ] Commit cited in "fixes" tag added bulk support for flow counters but it didn't account that's also possible to query a counter using a non-base id if the counter was allocated as bulk. When a user performs a query, validate the flow counter id given in the mailbox is inside the valid range taking bulk value into account. Fixes: 208d70f562e5 ("IB/mlx5: Support flow counters offset for bulk counters") Signed-off-by: Mark Bloch Reviewed-by: Maor Gottlieb Link: https://lore.kernel.org/r/79d7fbe291690128e44672418934256254d93115.1681377114.git.leon@kernel.org Signed-off-by: Leon Romanovsky Signed-off-by: Sasha Levin --- drivers/infiniband/hw/mlx5/devx.c | 31 ++++++++++++++++++++++++++----- include/linux/mlx5/mlx5_ifc.h | 3 ++- 2 files changed, 28 insertions(+), 6 deletions(-) diff --git a/drivers/infiniband/hw/mlx5/devx.c b/drivers/infiniband/hw/mlx5/devx.c index 21beded40066d..104e5cbba066b 100644 --- a/drivers/infiniband/hw/mlx5/devx.c +++ b/drivers/infiniband/hw/mlx5/devx.c @@ -666,7 +666,21 @@ static bool devx_is_valid_obj_id(struct uverbs_attr_bundle *attrs, obj_id; case MLX5_IB_OBJECT_DEVX_OBJ: - return ((struct devx_obj *)uobj->object)->obj_id == obj_id; + { + u16 opcode = MLX5_GET(general_obj_in_cmd_hdr, in, opcode); + struct devx_obj *devx_uobj = uobj->object; + + if (opcode == MLX5_CMD_OP_QUERY_FLOW_COUNTER && + devx_uobj->flow_counter_bulk_size) { + u64 end; + + end = devx_uobj->obj_id + + devx_uobj->flow_counter_bulk_size; + return devx_uobj->obj_id <= obj_id && end > obj_id; + } + + return devx_uobj->obj_id == obj_id; + } default: return false; @@ -1515,10 +1529,17 @@ static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OBJ_CREATE)( goto obj_free; if (opcode == MLX5_CMD_OP_ALLOC_FLOW_COUNTER) { - u8 bulk = MLX5_GET(alloc_flow_counter_in, - cmd_in, - flow_counter_bulk); - obj->flow_counter_bulk_size = 128UL * bulk; + u32 bulk = MLX5_GET(alloc_flow_counter_in, + cmd_in, + flow_counter_bulk_log_size); + + if (bulk) + bulk = 1 << bulk; + else + bulk = 128UL * MLX5_GET(alloc_flow_counter_in, + cmd_in, + flow_counter_bulk); + obj->flow_counter_bulk_size = bulk; } uobj->object = obj; diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h index 49ea0004109e1..442b6ac8a66c1 100644 --- a/include/linux/mlx5/mlx5_ifc.h +++ b/include/linux/mlx5/mlx5_ifc.h @@ -8508,7 +8508,8 @@ struct mlx5_ifc_alloc_flow_counter_in_bits { u8 reserved_at_20[0x10]; u8 op_mod[0x10]; - u8 reserved_at_40[0x38]; + u8 reserved_at_40[0x33]; + u8 flow_counter_bulk_log_size[0x5]; u8 flow_counter_bulk[0x8]; }; -- 2.39.2