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 X-Spam-Level: X-Spam-Status: No, score=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 90350C433E0 for ; Mon, 25 May 2020 17:44:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6C7772078B for ; Mon, 25 May 2020 17:44:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1590428684; bh=5FBRlSAMNJ229oNYIFST38PkaK0/WfRuud3yRstm+yU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=P8CdyHxl35neg6+uxW2jwb6hF+HKMTDNIvVTxxrFgJ3Sm7wujNsbj+zlEVBgfxJJA 6yL1QFkIzgMc6KIEjHF1Hj1EJ/HRNMrJWICcP16PADSRTCqiGXsHsjJ9uGsOC9wS7V tpKkA2ZdQ/VSUwrHo22pFxGuZFfb250jSGRdNCQs= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388907AbgEYRon (ORCPT ); Mon, 25 May 2020 13:44:43 -0400 Received: from mail.kernel.org ([198.145.29.99]:48312 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388621AbgEYRon (ORCPT ); Mon, 25 May 2020 13:44:43 -0400 Received: from localhost (unknown [213.57.247.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 56BBB207D8; Mon, 25 May 2020 17:44:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1590428683; bh=5FBRlSAMNJ229oNYIFST38PkaK0/WfRuud3yRstm+yU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=PdkyBIiGxa86NzijYvIT1h4MFhDOhw4yFFwBOqZ1toPhVbFDCcn/Cqpnsey/KQrKz qYq2l8rfuCRGwr98PQfcGucsLGTGRs3ZhyDOS9A8g5PPOFZRk8o9/Y/0WzxtZ37lAE rup17RGla2fweqT64XlwgTtJU9HQveQS0/10+A64= From: Leon Romanovsky To: Doug Ledford , Jason Gunthorpe Cc: Leon Romanovsky , linux-rdma@vger.kernel.org Subject: [PATCH rdma-next v2 7/9] RDMA/mlx5: Advertise ECE support Date: Mon, 25 May 2020 20:43:59 +0300 Message-Id: <20200525174401.71152-8-leon@kernel.org> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200525174401.71152-1-leon@kernel.org> References: <20200525174401.71152-1-leon@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org From: Leon Romanovsky The ECE bits are configured through create_qp and modify_qp commands. While the create_qp() can be easily extended, it is not an easy task for the modify_qp(). The new bit in the comp_mask is needed to mark that kernel supports ECE and can receive data instead of "reserved" field in the struct mlx5_ib_modify_qp. Signed-off-by: Leon Romanovsky --- drivers/infiniband/hw/mlx5/main.c | 3 +++ include/uapi/rdma/mlx5-abi.h | 1 + 2 files changed, 4 insertions(+) diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c index 6094ab2f4cd7..570c519ca530 100644 --- a/drivers/infiniband/hw/mlx5/main.c +++ b/drivers/infiniband/hw/mlx5/main.c @@ -1971,6 +1971,9 @@ static int mlx5_ib_alloc_ucontext(struct ib_ucontext *uctx, resp.response_length += sizeof(resp.dump_fill_mkey); } + if (MLX5_CAP_GEN(dev->mdev, ece_support)) + resp.comp_mask |= MLX5_IB_ALLOC_UCONTEXT_RESP_MASK_ECE; + 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 bc9d9e3cb369..90ea1e5aa291 100644 --- a/include/uapi/rdma/mlx5-abi.h +++ b/include/uapi/rdma/mlx5-abi.h @@ -100,6 +100,7 @@ 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_ECE = 1UL << 2, }; enum mlx5_user_cmds_supp_uhw { -- 2.26.2