From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id 7B3C9A04C6; Thu, 14 Nov 2019 15:00:02 +0100 (CET) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id DE9212BC8; Thu, 14 Nov 2019 15:00:01 +0100 (CET) Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by dpdk.org (Postfix) with ESMTP id 675D2A69 for ; Thu, 14 Nov 2019 15:00:00 +0100 (CET) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga107.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 14 Nov 2019 05:59:59 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.68,304,1569308400"; d="scan'208";a="216752220" Received: from fyigit-mobl.ger.corp.intel.com (HELO [10.237.221.96]) ([10.237.221.96]) by orsmga002.jf.intel.com with ESMTP; 14 Nov 2019 05:59:51 -0800 To: Andrew Rybchenko , Jerin Jacob Cc: Pavan Nikhilesh , Jerin Jacob , Thomas Monjalon , Ajit Khaparde , Somnath Kotur , Rahul Lakkireddy , Hemant Agrawal , Sachin Saxena , Wenzhuo Lu , John Daley , Hyong Youb Kim , Qi Zhang , Xiao Wang , Ziyang Xuan , Xiaoyun Wang , Guoyang Zhou , Beilei Xing , Jingjing Wu , Qiming Yang , Konstantin Ananyev , Shijith Thotton , Srisivasubramanian Srinivasan , Matan Azrad , Shahaf Shuler , Viacheslav Ovsiienko , Stephen Hemminger , "K. Y. Srinivasan" , Haiyang Zhang , Alejandro Lucero , Nithin Dabilpuram , Kiran Kumar K , Rasesh Mody , Shahed Shaikh , Maciej Czekaj , Yong Wang , dpdk-dev References: <20191106191803.15098-1-pbhagavatula@marvell.com> <20191111131914.16559-1-pbhagavatula@marvell.com> <20191111131914.16559-5-pbhagavatula@marvell.com> <449b645e-93f8-8919-af7a-887f36dc3093@solarflare.com> From: Ferruh Yigit Openpgp: preference=signencrypt Autocrypt: addr=ferruh.yigit@intel.com; prefer-encrypt=mutual; keydata= mQINBFXZCFABEADCujshBOAaqPZpwShdkzkyGpJ15lmxiSr3jVMqOtQS/sB3FYLT0/d3+bvy qbL9YnlbPyRvZfnP3pXiKwkRoR1RJwEo2BOf6hxdzTmLRtGtwWzI9MwrUPj6n/ldiD58VAGQ +iR1I/z9UBUN/ZMksElA2D7Jgg7vZ78iKwNnd+vLBD6I61kVrZ45Vjo3r+pPOByUBXOUlxp9 GWEKKIrJ4eogqkVNSixN16VYK7xR+5OUkBYUO+sE6etSxCr7BahMPKxH+XPlZZjKrxciaWQb +dElz3Ab4Opl+ZT/bK2huX+W+NJBEBVzjTkhjSTjcyRdxvS1gwWRuXqAml/sh+KQjPV1PPHF YK5LcqLkle+OKTCa82OvUb7cr+ALxATIZXQkgmn+zFT8UzSS3aiBBohg3BtbTIWy51jNlYdy ezUZ4UxKSsFuUTPt+JjHQBvF7WKbmNGS3fCid5Iag4tWOfZoqiCNzxApkVugltxoc6rG2TyX CmI2rP0mQ0GOsGXA3+3c1MCdQFzdIn/5tLBZyKy4F54UFo35eOX8/g7OaE+xrgY/4bZjpxC1 1pd66AAtKb3aNXpHvIfkVV6NYloo52H+FUE5ZDPNCGD0/btFGPWmWRmkPybzColTy7fmPaGz cBcEEqHK4T0aY4UJmE7Ylvg255Kz7s6wGZe6IR3N0cKNv++O7QARAQABtCVGZXJydWggWWln aXQgPGZlcnJ1aC55aWdpdEBpbnRlbC5jb20+iQJUBBMBCgA+AhsDAh4BAheABQsJCAcDBRUK CQgLBRYCAwEAFiEE0jZTh0IuwoTjmYHH+TPrQ98TYR8FAl1meboFCQlupOoACgkQ+TPrQ98T YR9ACBAAv2tomhyxY0Tp9Up7mNGLfEdBu/7joB/vIdqMRv63ojkwr9orQq5V16V/25+JEAD0 60cKodBDM6HdUvqLHatS8fooWRueSXHKYwJ3vxyB2tWDyZrLzLI1jxEvunGodoIzUOtum0Ce gPynnfQCelXBja0BwLXJMplM6TY1wXX22ap0ZViC0m714U5U4LQpzjabtFtjT8qOUR6L7hfy YQ72PBuktGb00UR/N5UrR6GqB0x4W41aZBHXfUQnvWIMmmCrRUJX36hOTYBzh+x86ULgg7H2 1499tA4o6rvE13FiGccplBNWCAIroAe/G11rdoN5NBgYVXu++38gTa/MBmIt6zRi6ch15oLA Ln2vHOdqhrgDuxjhMpG2bpNE36DG/V9WWyWdIRlz3NYPCDM/S3anbHlhjStXHOz1uHOnerXM 1jEjcsvmj1vSyYoQMyRcRJmBZLrekvgZeh7nJzbPHxtth8M7AoqiZ/o/BpYU+0xZ+J5/szWZ aYxxmIRu5ejFf+Wn9s5eXNHmyqxBidpCWvcbKYDBnkw2+Y9E5YTpL0mS0dCCOlrO7gca27ux ybtbj84aaW1g0CfIlUnOtHgMCmz6zPXThb+A8H8j3O6qmPoVqT3qnq3Uhy6GOoH8Fdu2Vchh TWiF5yo+pvUagQP6LpslffufSnu+RKAagkj7/RSuZV25Ag0EV9ZMvgEQAKc0Db17xNqtSwEv mfp4tkddwW9XA0tWWKtY4KUdd/jijYqc3fDD54ESYpV8QWj0xK4YM0dLxnDU2IYxjEshSB1T qAatVWz9WtBYvzalsyTqMKP3w34FciuL7orXP4AibPtrHuIXWQOBECcVZTTOdZYGAzaYzxiA ONzF9eTiwIqe9/oaOjTwTLnOarHt16QApTYQSnxDUQljeNvKYt1lZE/gAUUxNLWsYyTT+22/ vU0GDUahsJxs1+f1yEr+OGrFiEAmqrzpF0lCS3f/3HVTU6rS9cK3glVUeaTF4+1SK5ZNO35p iVQCwphmxa+dwTG/DvvHYCtgOZorTJ+OHfvCnSVjsM4kcXGjJPy3JZmUtyL9UxEbYlrffGPQ I3gLXIGD5AN5XdAXFCjjaID/KR1c9RHd7Oaw0Pdcq9UtMLgM1vdX8RlDuMGPrj5sQrRVbgYH fVU/TQCk1C9KhzOwg4Ap2T3tE1umY/DqrXQgsgH71PXFucVjOyHMYXXugLT8YQ0gcBPHy9mZ qw5mgOI5lCl6d4uCcUT0l/OEtPG/rA1lxz8ctdFBVOQOxCvwRG2QCgcJ/UTn5vlivul+cThi 6ERPvjqjblLncQtRg8izj2qgmwQkvfj+h7Ex88bI8iWtu5+I3K3LmNz/UxHBSWEmUnkg4fJl Rr7oItHsZ0ia6wWQ8lQnABEBAAGJAjwEGAEKACYCGwwWIQTSNlOHQi7ChOOZgcf5M+tD3xNh HwUCXWZ5wAUJB3FgggAKCRD5M+tD3xNhH2O+D/9OEz62YuJQLuIuOfL67eFTIB5/1+0j8Tsu o2psca1PUQ61SZJZOMl6VwNxpdvEaolVdrpnSxUF31kPEvR0Igy8HysQ11pj8AcgH0a9FrvU /8k2Roccd2ZIdpNLkirGFZR7LtRw41Kt1Jg+lafI0efkiHKMT/6D/P1EUp1RxOBNtWGV2hrd 0Yg9ds+VMphHHU69fDH02SwgpvXwG8Qm14Zi5WQ66R4CtTkHuYtA63sS17vMl8fDuTCtvfPF HzvdJLIhDYN3Mm1oMjKLlq4PUdYh68Fiwm+boJoBUFGuregJFlO3hM7uHBDhSEnXQr5mqpPM 6R/7Q5BjAxrwVBisH0yQGjsWlnysRWNfExAE2sRePSl0or9q19ddkRYltl6X4FDUXy2DTXa9 a+Fw4e1EvmcF3PjmTYs9IE3Vc64CRQXkhujcN4ZZh5lvOpU8WgyDxFq7bavFnSS6kx7Tk29/ wNJBp+cf9qsQxLbqhW5kfORuZGecus0TLcmpZEFKKjTJBK9gELRBB/zoN3j41hlEl7uTUXTI JQFLhpsFlEdKLujyvT/aCwP3XWT+B2uZDKrMAElF6ltpTxI53JYi22WO7NH7MR16Fhi4R6vh FHNBOkiAhUpoXRZXaCR6+X4qwA8CwHGqHRBfYFSU/Ulq1ZLR+S3hNj2mbnSx0lBs1eEqe2vh cA== Message-ID: <5d8f3d02-63da-9718-6f0e-efca9b9381d8@intel.com> Date: Thu, 14 Nov 2019 13:59:50 +0000 MIME-Version: 1.0 In-Reply-To: <449b645e-93f8-8919-af7a-887f36dc3093@solarflare.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Subject: Re: [dpdk-dev] [PATCH v17 04/10] drivers/net: update Rx RSS hash offload capabilities X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" On 11/14/2019 1:24 PM, Andrew Rybchenko wrote: > On 11/14/19 3:57 PM, Jerin Jacob wrote: >> On Wed, Nov 13, 2019 at 11:32 PM Ferruh Yigit wrote: >>> On 11/11/2019 1:19 PM, pbhagavatula@marvell.com wrote: >>>> diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c >>>> index 30c0379d4..8c1caac18 100644 >>>> --- a/drivers/net/ixgbe/ixgbe_ethdev.c >>>> +++ b/drivers/net/ixgbe/ixgbe_ethdev.c >>>> @@ -2402,6 +2402,9 @@ ixgbe_dev_configure(struct rte_eth_dev *dev) >>>> int ret; >>>> >>>> PMD_INIT_FUNC_TRACE(); >>>> + >>>> + dev->data->dev_conf.rxmode.offloads |= DEV_RX_OFFLOAD_RSS_HASH; >>>> + >>> Hi Pavan, Andrew, Jerin, >>> >>> This is causing trouble when device is re-configured with its existing data, >>> because of the check in the ethdev [1]. >>> >>> This is for the case device configuration get, a few thing changed and >>> re-configured case, this is what is done in bonding and it is failing now. >>> >>> Do you have any suggestion for the solution? >>> >>> We can set this offload in PMDs only if 'ETH_MQ_RX_RSS_FLAG' set but same thing >>> still can caught us, if the initial configuration was with 'ETH_MQ_RX_RSS_FLAG' >>> but reconfigure is not. >>> >>> Or we can relax the check in 'rte_eth_dev_configure()' to log but not return error? >> IMO, We can relax the check as it is NOT at all critical for this flag. > > Other option is to set RSS_HASH above if (dev_conf->rxmode.mq_mode & > ETH_MQ_RX_RSS_FLAG). +1 to this check in PMDs, even we can disable the RSS_HASH offload when RSS is not enabled [2], but this won't solve the problem completely. User can do first configure with RSS enabled and second with RSS disabled, it will be same issue. [2] in PMD, configure(): if (dev_conf->rxmode.mq_mode & TH_MQ_RX_RSS_FLAG) offload |= RSS_HASH else offload &= ~RSS_HASH > Should I care about it? > >>> [1] >>> >>> @@ -1305,6 +1306,17 @@ rte_eth_dev_configure(uint16_t port_id, uint16_t >>> nb_rx_q, uint16_t nb_tx_q, >>> goto rollback; >>> } >>> >>> + /* Check if Rx RSS distribution is disabled but RSS hash is enabled. */ >>> + if (((dev_conf->rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG) == 0) && >>> + (dev_conf->rxmode.offloads & DEV_RX_OFFLOAD_RSS_HASH)) { >>> + RTE_ETHDEV_LOG(ERR, >>> + "Ethdev port_id=%u config invalid Rx mq_mode without RSS but %s offload is >>> requested", >>> + port_id, >>> + rte_eth_dev_rx_offload_name(DEV_RX_OFFLOAD_RSS_HASH)); >>> + ret = -EINVAL; >>> + goto rollback; >>> + } >