From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id EEE6542401; Sat, 28 Jan 2023 07:04:52 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 76FA84068E; Sat, 28 Jan 2023 07:04:52 +0100 (CET) Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by mails.dpdk.org (Postfix) with ESMTP id A63B440143; Sat, 28 Jan 2023 07:04:50 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1674885891; x=1706421891; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=L1CgEkQelUaJ96CUHvEvWehluzuolrlRdm5/QSVLwdA=; b=lAv59/afVtPhTwLNH7CiQ4yLRutazuVdxEMIK4K1fz9MgGBg8nre4CYl nY4FzfnmNUAveUlwnjYRlqAu0QfPnAxNF7/jorlcaCAoyFKh2qCCj5/HM zAq3oDip6Px4UOKu57dt8xin+QJaBwa/CTIOUU7S5WJBwM9B6nc32Rk9u hCb6jPSpJjx+V5lunawIoQu5s5J/DReWphRkCnjbEf8ACwsJwmNejnngU EInHUMOqGGNCQn+zqOB1ftmiGkyMBXbhiVBwCaLnOxNeZv3Bfd9iVm8l2 ytR/jpZJZ+L3NPnO465eIUJmWLSp6FGVFmycYCT4ZXsGbPyYn/+PIAALM g==; X-IronPort-AV: E=McAfee;i="6500,9779,10603"; a="327284076" X-IronPort-AV: E=Sophos;i="5.97,253,1669104000"; d="scan'208";a="327284076" Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Jan 2023 22:04:49 -0800 X-IronPort-AV: E=McAfee;i="6500,9779,10603"; a="771834992" X-IronPort-AV: E=Sophos;i="5.97,253,1669104000"; d="scan'208";a="771834992" Received: from unknown (HELO localhost.localdomain) ([10.239.252.253]) by fmsmga002-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Jan 2023 22:04:47 -0800 From: Mingjin Ye To: dev@dpdk.org Cc: qiming.yang@intel.com, stable@dpdk.org, yidingx.zhou@intel.com, Mingjin Ye , Qi Zhang Subject: [PATCH v8] doc: add PMD known issue Date: Sat, 28 Jan 2023 06:01:38 +0000 Message-Id: <20230128060139.58516-1-mingjinx.ye@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20221227090040.38394-1-mingjinx.ye@intel.com> References: <20221227090040.38394-1-mingjinx.ye@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Add a known issue: Rx path dynamic change is not supported for PMD. Fixes: de853a3bb151 ("net/ice: disable DDP package on Windows") Cc: stable@dpdk.org Signed-off-by: Mingjin Ye --- doc/guides/nics/ice.rst | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/doc/guides/nics/ice.rst b/doc/guides/nics/ice.rst index ce075e067c..115625523e 100644 --- a/doc/guides/nics/ice.rst +++ b/doc/guides/nics/ice.rst @@ -395,3 +395,15 @@ file is used by both the kernel driver and the DPDK PMD. Windows support: The DDP package is not supported on Windows so, loading of the package is disabled on Windows. + +ice: Rx path does not support dynamic change +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +The ice driver supports fast and offload rx path. When pmd is initialized, +the fast rx path is selected by default. Even if offload is subsequently +enabled through the API, which will not work because the past rx path is +still used. + +The ice driver does not support to change the rx path after application +is initialized. If HW offload is required, the ``--rx-offloads`` parameter +should be used to choose the offload Rx path by default. -- 2.34.1