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 67E6C33A9FE; Wed, 18 Mar 2026 03:38:36 +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=1773805116; cv=none; b=Kv683hQ0CkD49q+MOJUnqdvZoTXolKnYOrQczWQVc/7csde+G8aqF96OAvQ3hoC2wRHdeffhhdt/3AaXhu/T+Ge6ZgWKgZ7naE1vNhVdOAJfXQ5/axrW2kJVo6rjobr6oXFXXU+hRsH1ddVMP3/BPsSBg2FXkfhiRzwWJ/WioeE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773805116; c=relaxed/simple; bh=C8i7l0DSbqE1tF4lx+Rsiu+cCgRxyKdIiVFUyi3jQDM=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=tK+9hDtdm/Ti+svjz6ajqrhd328lKMuJDs1EZzkw+3321XEIJ4/HjAixBwyXRNy8AzdOEWTC6+3twMdoNNr7JDdh2ODLAZaozOgPt56cECQ3AToxJ8XC+E6oUIubF+lBPC6cJ3woAVlElVAenAOnuOD9tO2lxt7XarCR7ZYx5vI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=AeiPZaTK; 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="AeiPZaTK" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 97E9FC2BCB1; Wed, 18 Mar 2026 03:38:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1773805116; bh=C8i7l0DSbqE1tF4lx+Rsiu+cCgRxyKdIiVFUyi3jQDM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=AeiPZaTKNz3GI3g2SY/c/8HpK30rhZmYvY6kCuZVHTzUrs4ONZeUqPyXQP6XEAOMV 9oOrcVenVFXWtqEuMeaGTGPeSNIzPxHLeAzUlpAa1qAeyofbPx6kXfd2U1p+zFZ/6E hjVgEqcpQ42hozRzMMn4i1EV7V5Zupy5Y+pL8y5YwcBxASOIrgL9LjSmlbx6uoT7EE LH8z/KEx9lLwhsa525QF42hYlEmV59IXJjzrFz6RS3oVBIJj2o8ifBkp/v548Qx0kI oLSXgrAcZc/b3tcsfcBPexCqbijgJv6T8lNQbk7fjBsrcK692l+CG/h+4yxME/wb+E x33WSFVpSKO+A== 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 v4 2/6] selftests: drv-net: give HW stats sync time extra 25% of margin Date: Tue, 17 Mar 2026 20:38:15 -0700 Message-ID: <20260318033819.1469350-3-kuba@kernel.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260318033819.1469350-1-kuba@kernel.org> References: <20260318033819.1469350-1-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