From mboxrd@z Thu Jan 1 00:00:00 1970 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 C561136EA99; Fri, 20 Mar 2026 11:56:50 +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=1774007810; cv=none; b=rEX+ipcutgqR2t2qaXGLB3FiK1pkCwecTwXr08x4TO7304NccyXo2wTQcgQmpTkXlW/mH9myLXr2qCWenEbOdt5+EmiNlC49xiriXnNMtd4ayrPDnjRDI35JW4UJGRU1ZQ7xzZXzCgBb02RejjBOUfictLKnmgbFYic3qsf7GXs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774007810; c=relaxed/simple; bh=NByveJIMTOGWR8SYIDSI/wNbl0U2fDVDmDT1nEIR88g=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=DAYjF7yz8rENDr3UGJNbd/+8Os1DNPYfUAkjA+2LVAoT80q22FSD/qttRUEg657nAQ2Pdl2651gILZo0cV3G4XdVSFfqex3TnkFCQ9XE5dy0+l2MyVbfuO5gPJJmNN8eH87btVme6CdPnsrZ/F8K2VkUrFNVO//z9UDI6yI77K0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=fdox1X3X; 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="fdox1X3X" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BCAFEC4CEF7; Fri, 20 Mar 2026 11:56:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1774007810; bh=NByveJIMTOGWR8SYIDSI/wNbl0U2fDVDmDT1nEIR88g=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=fdox1X3XI/XTc2+HitONJ4zG2JCCCbqZXGC0cZxx2Q465B9MBqpXw/f3y1RxXBA11 nLKdHmCDjbRYZ9+kT/Ffrs29erK9QYrtY8x8bss422Q2sPEhkpxV+eVtgNGcZXn+0Y vpiOyIVRr2thikRXFC8pyF00sGxmpwMJ6p6DuXAJC7y3eyO1uGeKerj8Xp6VMoTcJ9 LFfqfKUydZLxUGNjJzMtL/gPPuaqmjR75oklK+g8iQq8aY0yRn5OX1O1PGwTPQ/6Na HjKwO6MbctSzdctXjspGwZ3AhFcfuS14UiILubXxXwNl96nJgWGp/V82mIUdhmc0ta U43yNevnG9Rjw== Date: Fri, 20 Mar 2026 11:56:45 +0000 From: Simon Horman To: Tariq Toukan Cc: Eric Dumazet , Jakub Kicinski , Paolo Abeni , Andrew Lunn , "David S. Miller" , Saeed Mahameed , Leon Romanovsky , Mark Bloch , netdev@vger.kernel.org, linux-rdma@vger.kernel.org, linux-kernel@vger.kernel.org, Gal Pressman , Moshe Shemesh , Dragos Tatulea Subject: Re: [PATCH net-next 0/3] net/mlx5e: Improve channel creation time via fast-path MKEY initialization Message-ID: <20260320115645.GE1753385@horms.kernel.org> References: <20260319074338.24265-1-tariqt@nvidia.com> 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: <20260319074338.24265-1-tariqt@nvidia.com> On Thu, Mar 19, 2026 at 09:43:35AM +0200, Tariq Toukan wrote: > Hi, > > This series improves channel creation time by moving per-channel MKEY > initialization from a slow-path FW command to a fast-path UMR WQE. > > The benefit becomes more significant with larger MKEYs and a higher > number of channels. > > On my setup with the maximum configuration (248 channels, MTU 9000, > RX/TX ring size 8K), the "interface up" operation is 2.081 seconds > faster: > > Before: 5.618 seconds > After: 3.537 seconds > > This corresponds to ~8.4 msec saved per channel. > > Regards, > Tariq > > Tariq Toukan (3): > net/mlx5e: Move RX MPWQE slowpath fields into a separate struct > net/mlx5e: RX, Pre-calculate pad value in MPWQE > net/mlx5e: Speed up channel creation by initializing MKEY entries via > UMR WQE Thanks, For the series: Reviewed-by: Simon Horman