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 E4920A00C2; Sat, 25 Apr 2020 16:00:40 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id CABF01C1BF; Sat, 25 Apr 2020 16:00:39 +0200 (CEST) Received: from dispatch1-us1.ppe-hosted.com (dispatch1-us1.ppe-hosted.com [148.163.129.52]) by dpdk.org (Postfix) with ESMTP id 0DADC1C1B3 for ; Sat, 25 Apr 2020 16:00:38 +0200 (CEST) Received: from mx1-us1.ppe-hosted.com (unknown [10.7.65.64]) by dispatch1-us1.ppe-hosted.com (PPE Hosted ESMTP Server) with ESMTP id 4D0B8600CA; Sat, 25 Apr 2020 14:00:37 +0000 (UTC) Received: from us4-mdac16-9.ut7.mdlocal (unknown [10.7.65.177]) by mx1-us1.ppe-hosted.com (PPE Hosted ESMTP Server) with ESMTP id 4AE342009B; Sat, 25 Apr 2020 14:00:37 +0000 (UTC) X-Virus-Scanned: Proofpoint Essentials engine Received: from mx1-us1.ppe-hosted.com (unknown [10.7.66.39]) by mx1-us1.ppe-hosted.com (PPE Hosted ESMTP Server) with ESMTPS id AFC5F22004D; Sat, 25 Apr 2020 14:00:36 +0000 (UTC) Received: from webmail.solarflare.com (uk.solarflare.com [193.34.186.16]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by mx1-us1.ppe-hosted.com (PPE Hosted ESMTP Server) with ESMTPS id 1238980078; Sat, 25 Apr 2020 14:00:36 +0000 (UTC) Received: from [192.168.38.17] (10.17.10.39) by ukex01.SolarFlarecom.com (10.17.10.4) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Sat, 25 Apr 2020 15:00:28 +0100 To: Dekel Peled , , , , , CC: , References: From: Andrew Rybchenko Autocrypt: addr=arybchenko@solarflare.com; keydata= mQINBF2681gBEACbdTxu8eLL3UX2oAelsnK9GkeaJeUYSOHPJQpV7RL/iaIskqTwBRnhjXt7 j9UEwGA+omnOmqQMpeQTb/F9Ma2dYE+Hw4/t/1KVjxr3ehFaASvwR4fWJfO4e2l/Rk4rG6Yi 5r6CWU2y8su2654Fr8KFc+cMGOAgKoZTZHZsRy5lHpMlemeF+VZkv8L5sYJWPnsypgqlCG3h v6lbtfZs+QqYbFH6bqoZwBAl5irmxywGR7ZJr1GLUZZ1lfdazSY8r6Vz0/Ip/KVxGu2uxo81 QCsAj0ZsQtwji9Sds/prTiPrIjx8Fc/tfbnAuVuPcnPbczwCJACzQr4q26XATL3kVuZhSBWh 4XfO/EAUuEq5AemUG5DDTM87g7Lp4eT9gMZB6P+rJwWPNWTiV3L7Cn+fO+l9mTPnOqdzBgDe OaulKiNSft1o0DY4bGzOmM2ad2cZt0jfnbMPMTE9zsr6+RFa+M8Ct20o6U1MUE4vP6veErMK of4kZ8PdoMM+Sq1hxMPNtlcVBSP9xMmdSZPlfDYI5VWosOceEcz7XZdjBJKdwKuz70V7eac4 ITSxgNFCTbeJ03zL2MR5s0IvD9ghISAwZ6ieCjU5UATn5+63qpD0nVNLsAdb/UpfvQcKAmvj 0fKlxu/PMVkjBa7/4cfNogYOhWDKUO+1pMaFwvb6/XTo6uMpfQARAQABtCxBbmRyZXcgUnli Y2hlbmtvIDxhcnliY2hlbmtvQHNvbGFyZmxhcmUuY29tPokCVAQTAQoAPhYhBP6NPgcKRj/Y X0yXQahue0sAy4m+BQJduvNYAhsDBQkB4TOABQsJCAcDBRUKCQgLBRYCAwEAAh4BAheAAAoJ EKhue0sAy4m+t3gP/j1MNc63CEozZo1IZ2UpVPAVWTYbLdPjIRdFqhlwvZYIgGIgIBk3ezKL K0/oc4ZeIwL6wQ5+V24ahuXvvcxLlKxfbJ6lo2iQGC7GLGhsDG9Y2k6sW13/sTJB/XuR2yov k5FtIgJ+aHa1PDZnepnGGOt9ka9n/Jzrc9WKYapOIIyLRe9U26ikoVgyqsD37PVeq5tLWHHA NGTUKupe9G6DFWidxx0KzyMoWDTbW2AWYcEmV2eQsgRT094AZwLFN5ErfefYzsGdO8TAUU9X YTiQN2MvP1pBxY/r0/5UfwV4UKBcR0S3ZvzyvrPoYER2Kxdf/qurx0Mn7StiCQ/JlNZb/GWQ TQ7huduuZHNQKWm7ufbqvKSfbPYvfl3akj7Wl8/zXhYdLqb5mmK45HXrgYGEqPN53OnK2Ngx IgYKEWr05KNv09097jLT5ONgYvszflqlLIzC4dV245g7ucuf9fYmsvmM1p/gFnOJBJL18YE5 P1fuGYNfLP+qp4WMiDqXlzaJfB4JcinyU49BXUj3Utd6f6sNBsO8YWcLbKBV9WmA324S3+wj f4NPRp3A5E+6OmTVMLWire2ZvnYp3YvifUj1r8lhoZ2B2vKuWwiTlHOKYBEjnOQJQnqYZEF0 JQQ1xzVDBQKE01BPlA3vy6BGWe6I4psBVqMOB9lAev/H+xa4u6Z3uQINBF269JsBEAC2KB3W 8JES/fh74avN7LOSdK4QA7gFIUQ4egVL81KnxquLzzilABuOhmZf3Rq6rMHSM8xmUAWa7Dkt YtzXStjEBI/uF0mAR3mMz1RcL2Wp+WD/15HjVpA7hPjXSEsWY0K2ymPerK4yrLcfFTHdMonY JfuACCC9NtOZxrWHOJoUS+RT7AWk80q/6D2iwQ47/2dBTznVG+gSeHSes9l91TB09w6f9JX/ sT+Ud0NQfm7HJ7t2pmGI9O6Po/NLZsDogmnIpJp/WwYOZN9JK7u2FyX2UyRzR8jK42aJkRsh DXs16Cc2/eYGakjrdO3x9a+RoxN7EuFtYhGR1PzMXdUiB5i+FyddYXkYUyO43QE/3VPA5l1v TUOagzZq6aONsdNonGJkV3TIG3JmUNtM+D/+r6QKzmgoJ8w576JxEZI09I/ZFN+g7BnUmlMx 6Z3IUOXVX/SWfGFga0YajwajHz03IBhChEbYbbqndVhmshu2GFURxrfUPYWdDXEqkh+08a5U Didia9jm2Opv4oE1e1TXAePyYJl/Zyps4Cv00GObAxibvMBQCUZQ+IBnNldRBOwXXRQV2xpx P+9iO1VYA/QXn0KqRK+SH1JGRXbJYi42YFaW1gE0EU0fiR2Wb9pK+doNEjjOhlzUGuvOEAUS +4m0m3dlfEvpCV9GMr7ERRpZzh9QkQARAQABiQI8BBgBCgAmFiEE/o0+BwpGP9hfTJdBqG57 SwDLib4FAl269JsCGwwFCQlmAYAACgkQqG57SwDLib7x6g//e+eCtNnJz7qFGbjWRJYNLCe5 gQwkhdyEGk4omr3VmjGj3z9kNFy/muh4pmHUngSAnnpwZggx14N4hhKf9y8G4Dwvsqa6b1zB Jq/c4t/SBDtGW4M/E331N04PaQZpcrbTfp1KqHNknk2N7yOk4CcoLVuIZmA5tPguASV8aAfz ZwhWAwn6vUEw9552eXEAnGFGDTCbyryNwzB5jtVQOEEDjTxcCkpcXMB45Tb1QUslRTu/sBAe HhPCQSUcJHR+KOq+P6yKICGAr291PZd6Qc7C3UyE+A3pY/UfdEVWj0STBWx1qvYLaHLrI4O9 KXDgh7luLjZZafcueCaPYmNo4V2lmNb3+7S4TvqhoZS+wN+9ldRQ4gH3wmRZybN6Y/ZCqxol RaZpE3AqdWsGvIgAkD0FpmtZNii9s2pnrhw0K6S4t4tYgXGTossxNSJUltfFQZdXM1xkZhtv dBZuUEectbZWuviGvQXahOMuH2pM64mx2hpdZzPcI2beeJNHkAsGT2KcaMETgvtHUBFRlLVB YxsUYz3UZmi2JSua4tbcGd6iWVN90eb8CxszYtivfpz6o2nPSjNwg0NaVGSHXjAK0tdByZ9t SkwjC3tEPljVycRSDpbauogOiAkvjENfaPd/H26V5hY822kaclaKDAW6ZG9UKiMijcAgb9u5 CJoOyqE8aGS5Ag0EXbr1RwEQAMXZHbafqmZiu6Kudp+Filgdkj2/XJva5Elv3fLfpXvhVt0Y if5Rzds3RpffoLQZk9nPwK8TbZFqNXPu7HSgg9AY7UdCM94WRFTkUCGKzbgiqGdXZ7Vyc8cy teGW+BcdfQycDvjfy50T3fO4kJNVp2LDNdknPaZVe8HJ80Od63+9ksB6Ni+EijMkh6Uk3ulB CSLnT4iFV57KgU2IsxOQVLnm+0bcsWMcCnGfphkY0yKP+aJ6MfmZkEeaDa7kf24N14ktg50m vOGDitcxA/+XXQXOsOIDJx1VeidxYsQ2FfsKu1G8+G6ejuaLf4rV5MI/+B/tfLbbOdikM5PF pxZVgTir9q13qHumMxdme7w5c7hybW412yWAe9TsrlXktFmFjRSFzAAxQhQSQxArS6db4oBk yeYJ59mW52i4occkimPWSm/raSgdSM+0P6zdWUlxxj+r1qiLgCYvruzLNtp5Nts5tR/HRQjE /ohQYaWDSVJEsc/4eGmgwzHzmvHtXeKkasn01381A1Lv3xwtpnfwERMAhxBZ8EGKEkc5gNdk vIPhknnGgPXqKmE1aWu8LcHiY+RHAF8gYPCDMuwyzBYnbiosKcicuIUp0Fj8XIaPao6F+WTi In4UOrqrYhsaCUvhVjsTBbNphGih9xbFJ8E+lkTLL8P3umtTcMPnpsB4xqcDABEBAAGJBHIE GAEKACYWIQT+jT4HCkY/2F9Ml0GobntLAMuJvgUCXbr1RwIbAgUJCWYBgAJACRCobntLAMuJ vsF0IAQZAQoAHRYhBNTYjdjWgdaEN5MrAN+9UR5r/4d3BQJduvVHAAoJEN+9UR5r/4d3EiQP /3lyby6v49HTU94Q2Fn2Xat6uifR7kWE5SO/1pUwYzx6v+z5K2jqPgqUYmuNoejcGl0CTNhg LbsxzUmAuf1OTAdE+ZYvOAjjKQhY4haxHc4enby/ltnHfWJYWJZ9UN5SsIQLvITvYu6rqthO CYjpXJhwkj3ODmC9H1TrvjrBGc6i7CTnR8RCjMEwCs2LI2frHa4R6imViEr9ScMfUnzdABMQ B0T5MOg8NX92/FRjTldU2KovG0ML9mSveSvVHAoEBLy4UIs5nEDdNiO1opJgKb5CXvWQugub 7AR52phNdKVdEB0S4tigJT4NalyTaPiUhFEm+CzZpMQDJ5E+/OowaPRfN4HeJX+c8sB+vUAZ mkAaG75N+IEk5JKFK9Z+bBYgPgaBDFZYdWDB/TMH0ANt+KI5uYg0i12TB4M8pwKG1DEPUmWc F2YpvB3jnbwzsOpSFiJOOlSs6nOB0Sb5GRtPOO3h6XGj+6mzQd6tcL63c9TrrUkjq7LDkxCz SJ2hTYRC8WNX8Uw9skWo5728JNrXdazEYCenUWmYiKLNKLslXCFodUCRDh/sUiyqRwS7PHEA LYC/UIWLMomI0Yvju3KA5v3RQVXhL+Gx2CzSj3GDz9xxGhJB2LfRfjzPbTR/Z27UpjCkd8z0 Ro3Ypmi1FLQwnRgoOKDbetTAIhugEShaLTITzJAP/iRDJCQsrZah5tE8oIl81qKEmBJEGcdt HYikbpQe7ydcXhqTj7+IECa3O7azI5OhCxUH2jNyonJ/phUslHH2G1TTBZK8y4Hrx5RpuRNS esn3P9uKu9DHqBAL7DMsCPwb2p1VNnapD72DBmRhzS/e6zS2R4+r9yNv03Hv7VCxKkmtE63H qpS//qpjfrtsIcHAjnKDaDtL1LYCtHoweI+DOpKKULSAYp/JE6F8LNibPQ0/P3S5ZIJNC4QZ uESjFOalJwFIqGQdkQB7ltRNJENLrHc+2jKGOuyFHm/Sbvp5EMGdaeQ0+u8CY0P+y6oXenwx 7WrJz/GvbNoFhJoJ6RzxCMQrFgxrssVZ7w5HcUj94lbnJ6osdYE/WpSd50B6jet6LKh5revg u9XI9CoqsPQ1V4wKYYdllPuogCye7KNYNKuiiuSNpaF4gHq1ZWGArwZtWHjgc2v3LegOpRQF SwOskMKmWsUyHIRMG1p8RpkBQTqY2rGSeUqPSvaqjT0nq+SUEM6qxEXD/2Wqri/X6bamuPDb S0PkBvFD2+0zr5Bc2YkMGPBYPNGZiTp3UjmZlLfn3TiBKIC92jherY563CULjSsiBEJCOSvv 4VPLn5aAcfbCXJnE3IGCp/hPl50iQqu7BPOYBbWXeb9ptDjGCAThNxSz0WAXkmcjAFE8gdE6 Znk9 Message-ID: <7b474ff0-7e9c-aa01-637b-61cc61d34aa4@solarflare.com> Date: Sat, 25 Apr 2020 17:00:24 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.7.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset="utf-8" Content-Language: en-US Content-Transfer-Encoding: 7bit X-Originating-IP: [10.17.10.39] X-ClientProxiedBy: ocex03.SolarFlarecom.com (10.20.40.36) To ukex01.SolarFlarecom.com (10.17.10.4) X-TM-AS-Product-Ver: SMEX-12.5.0.1300-8.5.1020-25376.003 X-TM-AS-Result: No-12.312700-8.000000-10 X-TMASE-MatchedRID: byfwvk+IcRnmLzc6AOD8DfHkpkyUphL9Msovp/h9OdE/HwRyaRVM1aee gI8Z8ffsfNn2G9WWhxgBEU4E817klepmPmvKoUSRHbdv6Uke88CmvNzKvPYvXVmLdYbWIjBpupC V1Tw0TOnxPngNkH7LKecEgVybpGYRQcZNCoBBp4+kpKo35nd2ntxs0lj1L8rvBph69XjMbdlAHO g8qEtqyBfDSmuAMQpgpQRJeFoGUm9qEf6Xr7r2WJK9FvwQx1hF5j+FxhJ+PPFHh/sJGEkG5CZKR IFpXA+Bo4SrvE+sBMaoZZEVeHQke9OxwlDCh8axEhGH3CRdKUXOCMDR/Pa6ICGD+Fp3vZHUsFe5 31Fr7DSXREGm0cm4xOCp+Owu+eqs1AyPgWec2IbDX5yibKoGvX0tCKdnhB58vqq8s2MNhPCy5/t FZu9S3Ku6xVHLhqfxIAcCikR3vq+gD7TLUL4HUrYVr7C5eh5P6WiiXDy2zsBe89JoytwybtLrx9 he7OMp X-TM-AS-User-Approved-Sender: Yes X-TM-AS-User-Blocked-Sender: No X-TMASE-Result: 10--12.312700-8.000000 X-TMASE-Version: SMEX-12.5.0.1300-8.5.1020-25376.003 X-MDID: 1587823237-OoeA0Dyx4PCM Subject: Re: [dpdk-dev] [PATCH] doc: refine ethernet and VLAN flow rule items 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 4/23/20 9:30 PM, Dekel Peled wrote: > Specified pattern may be translated in different manner. > For example the pattern "eth / ipv4" can be translated to match > untagged packets only, since the pattern doesn't specify a vlan item. vlan -> VLAN > It can also be translated to match both tagged and untagged packets, > for the same reason. > This patch updates the rte_flow documentation to clearly specify the > required pattern to use. > For example: > To match tagged ipv4 packets, the pattern "eth type is 0x8100 / > vlan / ipv4 / end" should be used. Isn't eth / vlan / ipv4 /end sufficient? What's the difference? I guess later should allow any VLAN TPID, but it is greyish since it is HW dependent. > To match untagged ipv4 packets, the pattern "eth type is 0x0800 / > ipv4 / end" should be used. What about eth / ipv4 / end? Does usage of ipv4 assume that EtherType is 0x0800? > To match both tagged and untagged packets, the pattern "eth / end" > should be used. The interesting question is what should be used if I want either tagged or untagged IPv4 packets. I think it worse to mention to make the picture complete. > Signed-off-by: Dekel Peled > --- > doc/guides/prog_guide/rte_flow.rst | 8 ++++++++ > lib/librte_ethdev/rte_flow.h | 9 +++++++++ > 2 files changed, 17 insertions(+) > > diff --git a/doc/guides/prog_guide/rte_flow.rst b/doc/guides/prog_guide/rte_flow.rst > index cf4368e..0d1c305 100644 > --- a/doc/guides/prog_guide/rte_flow.rst > +++ b/doc/guides/prog_guide/rte_flow.rst > @@ -905,6 +905,12 @@ so-called layer 2.5 pattern items such as ``RTE_FLOW_ITEM_TYPE_VLAN``. In > the latter case, ``type`` refers to that of the outer header, with the inner > EtherType/TPID provided by the subsequent pattern item. This is the same > order as on the wire. > +If the ``type`` field contains a TPID value, then only tagged packets will match > +the pattern. Shouldn't we emphasis that "tagged packets with specified TPID will match the pattern." since tagged packets could have various TPIDs. > +If the ``type`` field contains another EtherType value, then only untagged > +packets will match the pattern. I'm afraid "another EtherType" is too ambiguous. "non-TPID EtherType" is ambiguous as well and HW dependent. May be it is better to remove the sentence completely. > +If the ``ETH`` item is the only item in the pattern, and the ``type`` field is > +not specified, then both tagged and untagged packets will match the pattern. > > - ``dst``: destination MAC. > - ``src``: source MAC. > @@ -919,6 +925,8 @@ Matches an 802.1Q/ad VLAN tag. > The corresponding standard outer EtherType (TPID) values are > ``RTE_ETHER_TYPE_VLAN`` or ``RTE_ETHER_TYPE_QINQ``. It can be overridden by the > preceding pattern item. > +If a ``VLAN`` item is present in the pattern, then only tagged packets will > +match the pattern. > > - ``tci``: tag control information. > - ``inner_type``: inner EtherType or TPID. > diff --git a/lib/librte_ethdev/rte_flow.h b/lib/librte_ethdev/rte_flow.h > index 132b44e..178e87e 100644 > --- a/lib/librte_ethdev/rte_flow.h > +++ b/lib/librte_ethdev/rte_flow.h > @@ -710,6 +710,13 @@ struct rte_flow_item_raw { > * the latter case, @p type refers to that of the outer header, with the > * inner EtherType/TPID provided by the subsequent pattern item. This is the > * same order as on the wire. > + * If the @p type field contains a TPID value, then only tagged packets will > + * match the pattern. > + * If the @p type field contains another EtherType value, then only untagged > + * packets will match the pattern. > + * If the @p ETH item is the only item in the pattern, and the @p type field > + * is not specified, then both tagged and untagged packets will match the > + * pattern. > */ > struct rte_flow_item_eth { > struct rte_ether_addr dst; /**< Destination MAC. */ > @@ -734,6 +741,8 @@ struct rte_flow_item_eth { > * The corresponding standard outer EtherType (TPID) values are > * RTE_ETHER_TYPE_VLAN or RTE_ETHER_TYPE_QINQ. It can be overridden by > * the preceding pattern item. > + * If a @p VLAN item is present in the pattern, then only tagged packets will > + * match the pattern. > */ > struct rte_flow_item_vlan { > rte_be16_t tci; /**< Tag control information. */ >