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 EA0893EBF32 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 956f58d0204a3-649d4c77a32so3322577d50.2 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=tYOQe2KXp0GoarVaSWp8JCqHlJBwzDAfnXW1NGYamjkDfQmaybipd3no+hDBizkqRX ruhhB5ORkFDukwD4BLEb9dk3CXk4+oI25aoAjNE1yKthx1AvDby6ZriCnTgPidjQHdgr F+KoM47bor8XVlkVo2dUvx3X/qE5BCNNEciWD91i3Gzp6CZOWtmenUx+qFsDJuWe9B6P cFCiDFJZVCYPNAWP8U3LOTGSVj7YYjwik7DKG2Zgo6MiAGg7DQ1B2SniIi2ZcGW0ZPU/ 5CsfhQ6lK9TUE8GXjJpL6cqulNZG7C401WWx3Lu+zf9FQOTyEGPrcEfe9Kh+ZxiOkCWh KKXA== X-Gm-Message-State: AOJu0YzZAKKK4ONSI/LlbOrg5xGvOakucOTKXVeSRvPfixzLDomWhVcx YnaQZFOO8h6nD2aX8tfEvngSwfgOJMkY6UFPNujZ5WeXrqYK4p4lGnvt X-Gm-Gg: AZuq6aIOIQr7QdXicy11OMhXQBZklZSMTfZFOxwWPZ4OzwuTSd9hT9/7sGzpmoDWdmP GrS8Hta4kr2yzjqMLlM7Mf/li8kc5kUfi1VIcTaopcMmx5tDZL729mZD9+ckGkNhK7EUv+QJ5cq OFSiErzjRigFj078fT0rQBodZP8UDQ5m4dg3kB2U4rOb/oUKy212uF1D0lnntxfOONX6D08dhGS ZACSURls22YVTgk5Y/CM4xTLYMh6PRzkNf9HJ7JMex7vm6iYhKl1zW5/Wifh0yKNf8Oa3BgQ8ue FEHRKPgqBxgRAYB3IYNpOxhRg78tf6Ho7+x/Tu7uX866OKB2GhA6a7XUSwC0/kU261OgEJOqK+r G/JNrowH6VcPem6IfJcmauaqqgdQ+31jJ6+QWXr9ImxTvLhWBbz82ZSaYYYe9BXcsPRPQTVkNoZ vCgsanqw+Qg7JGPHFoWF3Vw5R2T5dNR0FEzU6AnTbT37XvRhX/CYiLi5yQtAB3PmR7Dh1JFg== 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: netdev@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