From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out30-124.freemail.mail.aliyun.com (out30-124.freemail.mail.aliyun.com [115.124.30.124]) (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 D75B3223DD6; Thu, 5 Mar 2026 01:55:08 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=115.124.30.124 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772675712; cv=none; b=EwbNU9z/gdhEP6ZCZKjPju5vFwPAA3W8WpGH9uwH0GTevlA09vIcGCNMDuE3avcu7nFqUvxlvdO5LDiLF2byLVbZQGrICzK/VT0AcXqSdyFhRDTOVFnfDoZCdrP4tyhtfEQD0Lm+sNvaJkiElkSiHJ9p9tir9nCOeu6Q1TOLVqs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772675712; c=relaxed/simple; bh=ZQUBrWfctnJtFHe4bVSgO8ce0YU8Uwi9bPqt+uZ8vn8=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=teEN7w1/t4z/Czp4ZDmDZoTdIgI66Si/VK7zNVJIYxtAUv/blh/NdEP1muW9bYTYBEW8UcpGpduwvf1xGK4EaX6c3L3EER8AQX+WnFIYJjSebGcws5763MDqXKbLVKVGTKwiLll9Jap209FZCcttfAfGZVf79PS8gGtpo2h8uK0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.alibaba.com; spf=pass smtp.mailfrom=linux.alibaba.com; dkim=pass (1024-bit key) header.d=linux.alibaba.com header.i=@linux.alibaba.com header.b=LlS2jUvD; arc=none smtp.client-ip=115.124.30.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.alibaba.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.alibaba.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.alibaba.com header.i=@linux.alibaba.com header.b="LlS2jUvD" DKIM-Signature:v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.alibaba.com; s=default; t=1772675700; h=Date:From:To:Subject:Message-ID:MIME-Version:Content-Type; bh=OHgAACH+q2DjfP6Ed0v+M5e+hsII+F/WPSAfjtq0GhM=; b=LlS2jUvDcEGsaUd6m/erbPP1xpyHz08q97lR8kILz8ApzET3vsB/IfuNC/H6rIUZgWF0TShZw1iRnetJqb5GeztdG4sH6aQKHlMjlqOAnxODIhwkOxufygRaiEfL/4hT6uvpSJKSMiactT8zdQ+wlIA4MYtCIm/Ueq45bFRQprQ= Received: from localhost(mailfrom:alibuda@linux.alibaba.com fp:SMTPD_---0X-GievI_1772675699 cluster:ay36) by smtp.aliyun-inc.com; Thu, 05 Mar 2026 09:54:59 +0800 Date: Thu, 5 Mar 2026 09:54:59 +0800 From: "D. Wythe" To: Jakub Kicinski Cc: "D. Wythe" , "David S. Miller" , Dust Li , Eric Dumazet , Paolo Abeni , Sidraya Jayagond , Wenjia Zhang , Mahanta Jambigi , Simon Horman , Tony Lu , Wen Gu , linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org, linux-s390@vger.kernel.org, netdev@vger.kernel.org, oliver.yang@linux.alibaba.com, pasic@linux.ibm.com Subject: Re: [PATCH net-next v2] net/smc: transition to RDMA core CQ pooling Message-ID: <20260305015459.GA55554@j66a10360.sqa.eu95> References: <20260302063737.4393-1-alibuda@linux.alibaba.com> <20260303170908.64a5070f@kernel.org> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260303170908.64a5070f@kernel.org> User-Agent: Mutt/1.5.21 (2010-09-15) On Tue, Mar 03, 2026 at 05:09:08PM -0800, Jakub Kicinski wrote: > On Mon, 2 Mar 2026 14:37:37 +0800 D. Wythe wrote: > > The current SMC-R implementation relies on global per-device CQs > > and manual polling within tasklets, which introduces severe > > scalability bottlenecks due to global lock contention and tasklet > > scheduling overhead, resulting in poor performance as concurrency > > increases. > > does not apply, please rebase & repost Will rebase and send v3 to fix it. Thanks. > -- > pw-bot: cr