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 1EBC5A0564; Fri, 28 Feb 2020 14:08:50 +0100 (CET) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id DCB761BFCE; Fri, 28 Feb 2020 14:08:48 +0100 (CET) Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by dpdk.org (Postfix) with ESMTP id 2F4C91BFC7 for ; Fri, 28 Feb 2020 14:08:46 +0100 (CET) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by orsmga105.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 28 Feb 2020 05:08:45 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.70,496,1574150400"; d="scan'208";a="272631021" Received: from fyigit-mobl.ger.corp.intel.com (HELO [10.237.221.20]) ([10.237.221.20]) by fmsmga002.fm.intel.com with ESMTP; 28 Feb 2020 05:08:44 -0800 To: "Sebastian, Selwin" , "dev@dpdk.org" References: <20200227063344.1978-1-ssebasti@amd.com> <0a7146b3-7bd5-fda6-34b2-cd293fdf3ca3@intel.com> From: Ferruh Yigit 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: <84ba933b-e1ee-0a6e-0a55-61d7faeb44cd@intel.com> Date: Fri, 28 Feb 2020 13:08:43 +0000 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Subject: Re: [dpdk-dev] [PATCH v1] net/axgbe: add support for Scattered Rx 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 2/28/2020 9:00 AM, Sebastian, Selwin wrote: > > Thanks and Regards > Selwin Sebastian >   >   > > -----Original Message----- > From: Ferruh Yigit > Sent: Thursday, February 27, 2020 8:08 PM > To: Sebastian, Selwin ; dev@dpdk.org > Subject: Re: [dpdk-dev] [PATCH v1] net/axgbe: add support for Scattered Rx > > [CAUTION: External Email] > > On 2/27/2020 2:35 PM, Sebastian, Selwin wrote: >> [AMD Official Use Only - Internal Distribution Only] >> >> Hi Ferruh, >> For validation of scatter using the testpmd method mentioned in dpdk docs, we need to have these Tx offloads also enabled. > > [Please don't top post, it makes conversation hard to follow.] > > Can you point where there testpmd requirement in the code? > https://doc.dpdk.org/dts/test_plans/scatter_test_plan.html talks about DEV_TX_OFFLOAD_MULTI_SEGS as a prerequisites for scatter . Above document has a good point that: "The forwarding of scattered input packets naturally enforces the transmission of scattered packets by PMD transmit functions." If you only support scattered Rx, but not Tx (as your case), you may have unexpected results. But this doesn't mean the multi segment Tx should be announced when it is not supported. > When I add DEV_TX_OFFLOAD_MULTI_SEGS for tx capability , I was forced to add " DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM , DEV_TX_OFFLOAD_UDP_TSO , DEV_TX_OFFLOAD_SCTP_CKSUM" for the mentioned testpmd to run. It is still no clear why you are forced to add those capabilities, if you can point me the code in testpmd that forces you, I can comment better. > > Also these offloads should be enabled when HW/Driver supports it, not for it is required by testpmd. > > I am able to test scatter without adding "DEV_TX_OFFLOAD_MULTI_SEGS" tx capability. Shall I submit version2 of the patch after removing " DEV_TX_OFFLOAD_MULTI_SEGS, DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM , DEV_TX_OFFLOAD_UDP_TSO, DEV_TX_OFFLOAD_SCTP_CKSUM" capabilities. ? First of all, offload capabilities are set based on what offload HW/Driver support. As far as I can see axgbe doesn't support multi segment Tx, so you shouldn't set 'DEV_TX_OFFLOAD_MULTI_SEGS' at all, same for all offload flags. If those list of offloads are supported by HW/Driver, but previously forgotten to announce them as capability, please send a separate patch for it, with proper fixes line which points the commit adding the support. > >> >> Thanks and Regards >> Selwin Sebastian >> >> -----Original Message----- >> From: Ferruh Yigit >> Sent: Thursday, February 27, 2020 7:59 PM >> To: Sebastian, Selwin ; dev@dpdk.org >> Subject: Re: [dpdk-dev] [PATCH v1] net/axgbe: add support for >> Scattered Rx >> >> [CAUTION: External Email] >> >> On 2/27/2020 6:33 AM, ssebasti@amd.com wrote: >>> From: Selwin Sebastian >>> >>> Enable scattered rx support and add jumbo packet transmit capability >>> >>> Signed-off-by: Selwin Sebastian >> >> <...> >> >>> @@ -789,11 +789,17 @@ axgbe_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info) >>> DEV_RX_OFFLOAD_IPV4_CKSUM | >>> DEV_RX_OFFLOAD_UDP_CKSUM | >>> DEV_RX_OFFLOAD_TCP_CKSUM | >>> + DEV_RX_OFFLOAD_JUMBO_FRAME | >>> + DEV_RX_OFFLOAD_SCATTER | >>> DEV_RX_OFFLOAD_KEEP_CRC; >>> >>> dev_info->tx_offload_capa = >>> DEV_TX_OFFLOAD_IPV4_CKSUM | >>> DEV_TX_OFFLOAD_UDP_CKSUM | >>> + DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM | >>> + DEV_TX_OFFLOAD_UDP_TSO | >>> + DEV_TX_OFFLOAD_SCTP_CKSUM | >>> + DEV_TX_OFFLOAD_MULTI_SEGS | >>> DEV_TX_OFFLOAD_TCP_CKSUM; >> >> Is the Tx offload capability update related to the this change? If it is not can you please send these updates as a separate patch, and a send new version of this patch without this bit? >> >> Thanks, >> ferruh >> >