From patchwork Tue Sep 17 02:34:08 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mohan Prasad J X-Patchwork-Id: 829312 Received: from esa.microchip.iphmx.com (esa.microchip.iphmx.com [68.232.154.123]) (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 09BAC15D5B3; Tue, 17 Sep 2024 09:33:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=68.232.154.123 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726565603; cv=none; b=q3YOBUh76TtbD9CyRKNYGCaut/qOv+8DwXAiSH0iQ1wMPqJ2kxCuDC0yJTcGbLQiIC2/wr4pPmKaJUnvKVno4sUzu2T+dCzHUuU/6tIfXFv1fhMuv8lFnE/Ak074ITgsTiFV1wwoMHNcCjD7Yu/z5zXM7VyWfl8fkbdA7JLetf0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726565603; c=relaxed/simple; bh=RwqSI2k9wTT/4iWlQrznLe744Nspq0k/xcGDeW2uO3c=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=lNxbG4RcSjWJ5hzq/RaRjbbCKAVGOUDDG5K8KvYZgliYfNRJYxbGuUSO5DCxcQ8rxSL8HOgasUKvpTL1y0hH6v96dHXVR035Djk4USNCRkVQJgbzaWrE5pXFVnbR+shmL0orXLzHKnlN9IBD9WUPdJWMAymSYCmybT8F9AsZKw4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=microchip.com; spf=pass smtp.mailfrom=microchip.com; dkim=pass (2048-bit key) header.d=microchip.com header.i=@microchip.com header.b=h36VYsmr; arc=none smtp.client-ip=68.232.154.123 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=microchip.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=microchip.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=microchip.com header.i=@microchip.com header.b="h36VYsmr" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1726565601; x=1758101601; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=RwqSI2k9wTT/4iWlQrznLe744Nspq0k/xcGDeW2uO3c=; b=h36VYsmr5OPThboVhbwCheqkCLR+h9XijmPf1xFfnVfjDk6HrgtOQwKh pT3dEuK8fcqEB7i/+bMYY2UCMmUSsJre8wY9V0qYQO6v4zKe+dTBcQaeB G9yNM9pMPTyA5KYtTPT7hh2cNASeke3fRujWVupnAuvyDoAIEXt26CAGc vzBclzhxeYLTKdD/Rm+hN+sPghirVuaPa3PjfKoVxYH0QbsE2hYnd0DJ/ 6uKZRdyN9cAc/2llphVd8wPOU9zn8jtJYoAX9SQe2Zqd0pUNaiNgdAnWE 9NjRb/yoVSEa3PpSfzBxyE0/9OTKBM6xkVmtCoyAg5+BTolqmQUIhiUai g==; X-CSE-ConnectionGUID: 6j7NM/cARrCart7pGaXQPQ== X-CSE-MsgGUID: Bcqn/ohrQu24bLe0N+OjUQ== X-IronPort-AV: E=Sophos;i="6.10,235,1719903600"; d="scan'208";a="31767005" X-Amp-Result: SKIPPED(no attachment in message) Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa4.microchip.iphmx.com with ESMTP/TLS/ECDHE-RSA-AES128-GCM-SHA256; 17 Sep 2024 02:33:16 -0700 Received: from chn-vm-ex04.mchp-main.com (10.10.85.152) by chn-vm-ex03.mchp-main.com (10.10.85.151) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.35; Tue, 17 Sep 2024 02:32:51 -0700 Received: from nisar-OptiPlex-9020.microchip.com (10.10.85.11) by chn-vm-ex04.mchp-main.com (10.10.85.152) with Microsoft SMTP Server id 15.1.2507.35 via Frontend Transport; Tue, 17 Sep 2024 02:32:46 -0700 From: Mohan Prasad J To: , , , CC: , , , , , , , , , , Subject: [PATCH net-next v2 2/3] selftests: nic_basic_tests: Add selftest case for speed and duplex state checks Date: Tue, 17 Sep 2024 08:04:08 +0530 Message-ID: <20240917023525.2571082-3-mohan.prasad@microchip.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240917023525.2571082-1-mohan.prasad@microchip.com> References: <20240917023525.2571082-1-mohan.prasad@microchip.com> Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Add selftest case for testing the speed and duplex state of local NIC driver and the partner based on the supported link modes obtained from the ethtool. Speed and duplex states are varied and verified using ethtool. Signed-off-by: Mohan Prasad J --- .../drivers/net/hw/nic_basic_tests.py | 46 +++++++++++++++++++ 1 file changed, 46 insertions(+) diff --git a/tools/testing/selftests/drivers/net/hw/nic_basic_tests.py b/tools/testing/selftests/drivers/net/hw/nic_basic_tests.py index 27f780032..ff46f2406 100644 --- a/tools/testing/selftests/drivers/net/hw/nic_basic_tests.py +++ b/tools/testing/selftests/drivers/net/hw/nic_basic_tests.py @@ -42,6 +42,14 @@ from lib.py import ethtool """Global variables""" common_link_modes = [] +def check_autonegotiation(ifname: str) -> None: + autoneg = get_ethtool_content(ifname, "Supports auto-negotiation:") + partner_autoneg = get_ethtool_content(ifname, "Link partner advertised auto-negotiation:") + + """Check if auto-neg supported by local and partner NIC""" + if autoneg[0] != "Yes" or partner_autoneg[0] != "Yes": + raise KsftSkipEx(f"Interface {ifname} or partner does not support auto-negotiation") + def get_ethtool_content(ifname: str, field: str): capture = False content = [] @@ -112,6 +120,25 @@ def verify_autonegotiation(ifname: str, expected_state: str) -> None: ksft_eq(actual_state, expected_state) +def set_speed_and_duplex(ifname: str, speed: str, duplex: str) -> None: + """Set the speed and duplex state for the interface""" + process = ethtool(f"--change {ifname} speed {speed} duplex {duplex} autoneg on") + + if process.ret != 0: + raise KsftFailEx(f"Not able to set speed and duplex parameters for {ifname}") + ksft_pr(f"Speed: {speed} Mbps, Duplex: {duplex} set for Interface: {ifname}") + +def verify_speed_and_duplex(ifname: str, expected_speed: str, expected_duplex: str) -> None: + verify_link_up(ifname) + """Verifying the speed and duplex state for the interface""" + with open(f"/sys/class/net/{ifname}/speed", "r") as fp: + actual_speed = fp.read().strip() + with open(f"/sys/class/net/{ifname}/duplex", "r") as fp: + actual_duplex = fp.read().strip() + + ksft_eq(actual_speed, expected_speed) + ksft_eq(actual_duplex, expected_duplex) + def test_link_modes(cfg) -> None: global common_link_modes link_modes = get_ethtool_content(cfg.ifname, "Supported link modes:") @@ -136,6 +163,25 @@ def test_autonegotiation(cfg) -> None: else: raise KsftSkipEx(f"Auto-Negotiation is not supported for interface {cfg.ifname}") +def test_network_speed(cfg) -> None: + check_autonegotiation(cfg.ifname) + if not common_link_modes: + KsftSkipEx("No common link modes exist") + speeds, duplex_modes = get_speed_duplex(common_link_modes) + + if speeds and duplex_modes and len(speeds) == len(duplex_modes): + for idx in range(len(speeds)): + speed = speeds[idx] + duplex = duplex_modes[idx] + set_speed_and_duplex(cfg.ifname, speed, duplex) + time.sleep(sleep_time) + verify_speed_and_duplex(cfg.ifname, speed, duplex) + else: + if not speeds or not duplex_modes: + KsftSkipEx(f"No supported speeds or duplex modes found for interface {cfg.ifname}") + else: + KsftSkipEx("Mismatch in the number of speeds and duplex modes") + def main() -> None: with NetDrvEpEnv(__file__) as cfg: ksft_run(globs=globals(), case_pfx={"test_"}, args=(cfg,))