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 DB6943B8D4A for ; Tue, 14 Apr 2026 09:33:21 +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=1776159201; cv=none; b=twRTfOxgSa5TipspnMsEucm5yl3cbjIf8Vj36uURVbvK8ya7yOBjXy+RT9/6ho9hQHx07gIKpCfg75ZxU6H2gkqIFAzo2Qt+2NAVZSxy3emLmieivplzl3eUmghtDSjCuqoSIsNS/U2eh5QMLvlkykAkB2zfQ/rrxriHF4mimCE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776159201; c=relaxed/simple; bh=LsW298vC1uXD4bNamm2iAeOtiJmLtwQwZUl1bRwVznM=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=jw/6nbxltUd4Hw11kaNgns5/GK5EyvyzI6vsaHCW1I2gIJvv96hmyNx0C1SJz2pkeaKjYGR3OEXaInyUW85e8utFQqrYUTO/s/UZUkYgiT99yPu45u2XvKV8LjaGz0+KJ0+WWcD7qOs7TudMkrJP2n5QwyjV6sHit6iB/nLWJUc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=i+Tbw0Cc; 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="i+Tbw0Cc" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5EAC5C19425; Tue, 14 Apr 2026 09:33:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1776159201; bh=LsW298vC1uXD4bNamm2iAeOtiJmLtwQwZUl1bRwVznM=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=i+Tbw0CcClfF8F75vv96rwLR7UM3a7fRL/T3bZ1hNRJnlyCrlJOU2NTgGmLhNngss 4s+n7kvhJef/vDVcve6TDvBD3nqoMPQk075oWrebT/iPaLDoQwTBeZOpPt0e353zHg B09LaAtf44/1/Ffb4GBkMdjjo+eswm/xEAXJwcBJ4JpEQA1Mwz4nVE7KIm5PdHeYBD 51CuH5Es5wmNcSlft0/RU9CoilQ3PdOkAUc1D2csJu+Mcxms6Vjk5Gee8J3ZQdA4Qc EYiwEQh5UFVDbEGKSm1Bp/bOPeeTgkSePmZ910I6Z2fKcXAGkiAHgbrNIDPcah5ARa dS9Z8eAqc5Iow== Date: Tue, 14 Apr 2026 10:33:17 +0100 From: Simon Horman To: Aleksandr Loktionov Cc: intel-wired-lan@lists.osuosl.org, anthony.l.nguyen@intel.com, netdev@vger.kernel.org, Jacob Keller Subject: Re: [PATCH iwl-next 6/10] ice: increase OICR interrupt moderation rate to 20K interrupts/sec Message-ID: <20260414093317.GY469338@kernel.org> References: <20260410074921.1254213-1-aleksandr.loktionov@intel.com> <20260410074921.1254213-7-aleksandr.loktionov@intel.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: <20260410074921.1254213-7-aleksandr.loktionov@intel.com> On Fri, Apr 10, 2026 at 09:49:17AM +0200, Aleksandr Loktionov wrote: > The miscellaneous interrupt cause (OICR) is throttled to 8K > interrupts per second (124 us minimum spacing). This interrupt > handles VF mailbox messages and Tx timestamps, so the low rate > imposes a minimum latency floor on both use-cases. > > Raise the rate to 20K interrupts per second (50 us minimum > spacing) to allow lower latency handling for Tx timestamp > bursts and high VF message rates. > > Signed-off-by: Jacob Keller > Signed-off-by: Aleksandr Loktionov Reviewed-by: Simon Horman