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 B0D9B370D55; Mon, 16 Mar 2026 22:45:14 +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=1773701114; cv=none; b=tlOkhG2I1mCFOv+YJiXUZ1V6GE1swYWYCyRC8LJ75ukrR2AvJEkzfFl3naX95Fz0W+ysufWZq18lfe9HFlm3u064E41xQgikwNQibkwkrOGdNO/sMC0yZtOSZ1F9snH943I5ibLwC6l4xQ5tHYUJC4mPGgb24N/vwof1ctp7g60= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773701114; c=relaxed/simple; bh=C8i7l0DSbqE1tF4lx+Rsiu+cCgRxyKdIiVFUyi3jQDM=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=QwLSfp5DQerMnH3DXprXNn7uUb4MLvCGQBOQNKXCYTM/2wjaNvlvZmvTnOAWTlTXM7dS/2DI8tLL+jDZtYbKl9nNKjDUSNEhhcC3NMe5iQCL4hb5sPeSx8bF4c2Gi+SNQMZ4jE3oPemlRMibWBKD6d+e69UxTHCumHM4D8lzudc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=tY6qKU6h; 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="tY6qKU6h" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A8DE5C2BCB1; Mon, 16 Mar 2026 22:45:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1773701114; bh=C8i7l0DSbqE1tF4lx+Rsiu+cCgRxyKdIiVFUyi3jQDM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=tY6qKU6hBBfj7mI0SXSZu4yI4wHxA7htPsnam277P907l9/eKTcwW4Ksl4W45yEzT WA+HI4epwJSOtOcFpNJYbHJnlQjHwpxwnR3zcXDt/bRzzMSdVzT2vpT4WdAQ7+qQtX HrPH/S4o5rbCpyEpql+CvMHOq2pLf///+eKwmZuvABTUTnv383PlhBQiY188U6Rzz6 /LUQ6FISP6h8gK5mJK1eYuGND73EMb6k3spTSocXzbdTx5yoNgo1uTemBuZvJIbyyh pzoPAkl+qwr9uLA5EuAyloLYj+VOhEJhiWHi2IPI5wWRbCQPfsy7FrEygAB9zjIM3o 5AF1bikec8ZLQ== From: Jakub Kicinski To: davem@davemloft.net Cc: netdev@vger.kernel.org, edumazet@google.com, pabeni@redhat.com, andrew+netdev@lunn.ch, horms@kernel.org, linux-kselftest@vger.kernel.org, shuah@kernel.org, willemb@google.com, petrm@nvidia.com, dw@davidwei.uk, mst@redhat.com, Jakub Kicinski Subject: [PATCH net-next v3 2/6] selftests: drv-net: give HW stats sync time extra 25% of margin Date: Mon, 16 Mar 2026 15:45:01 -0700 Message-ID: <20260316224505.279672-3-kuba@kernel.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260316224505.279672-1-kuba@kernel.org> References: <20260316224505.279672-1-kuba@kernel.org> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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 Reviewed-by: Willem de Bruijn Signed-off-by: Jakub Kicinski --- tools/testing/selftests/drivers/net/lib/py/env.py | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/drivers/net/lib/py/env.py b/tools/testing/selftests/drivers/net/lib/py/env.py index ccff345fe1c1..6a71c7e7f136 100644 --- a/tools/testing/selftests/drivers/net/lib/py/env.py +++ b/tools/testing/selftests/drivers/net/lib/py/env.py @@ -288,8 +288,8 @@ from . import bpftool, RtnlFamily, Netlink if "Operation not supported" not in e.cmd.stderr: raise - self._stats_settle_time = 0.025 + \ - data.get('stats-block-usecs', 0) / 1000 / 1000 + self._stats_settle_time = \ + 1.25 * data.get('stats-block-usecs', 20000) / 1000 / 1000 time.sleep(self._stats_settle_time) -- 2.53.0