From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-yx1-f47.google.com (mail-yx1-f47.google.com [74.125.224.47]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EA0FF25B1DA for ; Mon, 9 Feb 2026 02:37:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=74.125.224.47 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770604643; cv=none; b=lZdliML5nRGs38T9YUXcPwBHFMsmYDiYMtIQTJnT/fD8Tu6HivLRihBiLPVI+Qtsz0EOmVqUmE7JnDyuOj2F0GIQ4xvnm6CWELgr60doGUyejaI7mUhQYu4WXqjNykyDkBLDOvineBPaU6O/rb4dnZQ5tEIpgFiNwA38d9wzU+4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770604643; c=relaxed/simple; bh=pRQAO/ZYBYUQ77y7rK0JvvKA04zg434VlWUpr7akJJU=; h=Date:From:To:Cc:Message-ID:In-Reply-To:References:Subject: Mime-Version:Content-Type; b=VUHCKjYJzB77ROCvZqLcj/RrayLFKwZEsL3ZcST3FPjdgZoM61tqhbO9UdznoT3P1k80VlJiYODgdpV7foSpz0BLxR+ZRdU1/funbuED3s6aMuyK04UHVwYLqGZqYPL0PtsUAmyj1JrVCvJ4WtlYv2z+myiBj16aHo5q47r2Z3A= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=Z8Gl5npm; arc=none smtp.client-ip=74.125.224.47 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="Z8Gl5npm" Received: by mail-yx1-f47.google.com with SMTP id 956f58d0204a3-649c070ef3bso3701061d50.3 for ; Sun, 08 Feb 2026 18:37:22 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1770604642; x=1771209442; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:subject:references :in-reply-to:message-id:cc:to:from:date:from:to:cc:subject:date :message-id:reply-to; bh=1/V4WyWhAAZkw5TNJuCQHRUvYWFPGZ8OrTECOGPh6Dk=; b=Z8Gl5npmF3h7BCvIlBv/pdDg14pBOhE7A0097ii0q4ziW3+5N36BhFE4j1+cpzG2yf cdTB2cL805tGfyxtCQQC6CU3bTStqPz3l4AKPwTXROewVrmtDSNxCQt8omTSMbGSfS59 juAkqXrhv7bipf8K2Rx0/ApHj9AEaB0zbEVDOeZL47+nZrkxEvLmn9y8oFNOcNMbTKMa whuYLwmUGsYVr8fUV555PoinzLiDT/wSy4xoz+ne4MjXzzb/VvKrvt0iBLaGlhyZZho5 UBqy9/Xw8NU7eWFGFeTpEUMLP4V4RJcrFIovsHg7Hh4tuBuK2PMrZBRNZuhcDsqrmnxQ aVEA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1770604642; x=1771209442; h=content-transfer-encoding:mime-version:subject:references :in-reply-to:message-id:cc:to:from:date:x-gm-gg:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=1/V4WyWhAAZkw5TNJuCQHRUvYWFPGZ8OrTECOGPh6Dk=; b=w5oUQoryEkTZmImyW+9Mpg+E3iNarzeR3qb7UMPqWtb00RqsSlPd52MQaXOiUNwHBO 3+ffZn1SHFxWvBOjIbnNoZrMnI8aKQBTVQ73BIaCVtt5CNt6j+oZ+quyDuxCKPOcHFmj 0qZ86hKHmqqzZflcBY1hnSTdTUyF1LlFjKhupPsWrc6na3jFn85VEIaepQzfEFy295po BnJ3BU/ktzy9fHWKg6mtqh2PPg3gFDag31/PrGf+G7JFjGWjq9jzra6SmpzhedsTw+fK IJaoLELjuK+ae1v/zOUmE0qL63Xw9j9b5OwXblYDmKeRsWxG9gDUBG9RHl6TbREqs/5j mQ9g== X-Forwarded-Encrypted: i=1; AJvYcCU2tO4FqARSihkpzvlIBY0FT2iqXZ6ktx67XZyyYDUReXMBK5fVbRwcBQEFuZ+bq5TUmDqBVrKpiy006z2VROA=@vger.kernel.org X-Gm-Message-State: AOJu0YxssLYCkNPOvLwlO7JID1Q9jTn51zLVxSYRzxzRo5syc7MENzzB 6/KKcr6muZDIWxYfMGHe5stgFR+gpqUnRgcdbSVsz1iRQkuGxNHehal0 X-Gm-Gg: AZuq6aK5gip73S/AfFaisupym+IO75xk4H0DsCwihil3nkEEsB4CcW3O6WTXW6Kp0Pf 1pstbAPunSi9I4uN1F0+U0bHoCmHnLeYB0fH44tXtRytPgjEXh17E0IaaBoOR0SCikXX5dlhcbD 0HTx0nzrTfuLoS4g29IJ+0QxKVoc7qWKhwiuney23O3QpvrlNPT1zOyIOOuZOH1H04hR3LtdqHL ec7UE5LObziCM6943Vu0VQBFD/dDP/Vlz2LI4FaBLIaVtZpZ1zU4PtNM/0/iyacaimqkXjuobSl E0N6cEwvu0yIOSeduqQnFjVDdbBQvqt0iP7hsv5jCx8Y2OBOt2Sra/roUs49LOkw+NV3LuYVa5m ENyi4yA1BNd0PAzdkzL+dEuToIp7H0K+XZQ1hz41zEmSvdHAmQkOtThK3Hk7ExXOd1dI8+I8TdV PBxOlQ6ItjqEMGArZVX6dJc05Y5AtFglExDr7J48xCFLRiiI+0Ez3XwjGXjVGflPVqXc9R6w== X-Received: by 2002:a05:690c:c50d:b0:796:4486:b7d7 with SMTP id 00721157ae682-7964486c022mr20245177b3.26.1770604641852; Sun, 08 Feb 2026 18:37:21 -0800 (PST) Received: from gmail.com (21.33.48.34.bc.googleusercontent.com. [34.48.33.21]) by smtp.gmail.com with UTF8SMTPSA id 00721157ae682-7952a1db63csm80694087b3.33.2026.02.08.18.37.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 08 Feb 2026 18:37:21 -0800 (PST) Date: Sun, 08 Feb 2026 21:37:20 -0500 From: Willem de Bruijn To: Jakub Kicinski , davem@davemloft.net Cc: netdev@vger.kernel.org, edumazet@google.com, pabeni@redhat.com, andrew+netdev@lunn.ch, horms@kernel.org, shuah@kernel.org, willemb@google.com, petrm@nvidia.com, donald.hunter@gmail.com, michael.chan@broadcom.com, pavan.chebbi@broadcom.com, linux-kselftest@vger.kernel.org, Jakub Kicinski Message-ID: In-Reply-To: <20260207003509.3927744-6-kuba@kernel.org> References: <20260207003509.3927744-1-kuba@kernel.org> <20260207003509.3927744-6-kuba@kernel.org> Subject: Re: [PATCH net-next v2 5/9] selftests: drv-net: give HW stats sync time extra 25% of margin Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Jakub Kicinski wrote: > There are transient failures for devices which update stats > periodically, especially if it's the FW DMA'ing the stats > rather than host periodic work querying the FW. Wait 25% > longer than strictly necessary. > > For devices which don't report stats-block-usecs we retain > 25 msec as the default wait time (0.025sec == 20,000usec * 1.25). > > Reviewed-by: Petr Machata > Signed-off-by: Jakub Kicinski Reviewed-by: Willem de Bruijn