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2019 12:39:34 +0000 To: Dekel Peled , , , , , , , , , , , , , , , , , , , , , , , , CC: References: <325fd4151ea28e25a9c12ae028650fe3d6d022c0.1572943006.git.dekelp@mellanox.com> From: Andrew Rybchenko Openpgp: preference=signencrypt 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 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Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.9.0 MIME-Version: 1.0 In-Reply-To: <325fd4151ea28e25a9c12ae028650fe3d6d022c0.1572943006.git.dekelp@mellanox.com> Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Content-Language: en-GB X-Originating-IP: [91.220.146.112] X-ClientProxiedBy: ocex03.SolarFlarecom.com (10.20.40.36) To ukex01.SolarFlarecom.com (10.17.10.4) X-TM-AS-Product-Ver: SMEX-12.5.0.1300-8.5.1010-25022.003 X-TM-AS-Result: No-11.091700-8.000000-10 X-TMASE-MatchedRID: gzVbiXtWD9tr2bIFd4uhtPZvT2zYoYOwC/ExpXrHizz5+tteD5RzhXFC 0fMeQA5wNwLOobKr6GLDpxqo7r+PMq1Gn59kk9YwEhGH3CRdKUWcqlCdrhyhQFMeFKd6rzCneyM 1BcgrjRCYrF6dEuQANq1LFiii8z5Ns1dXYh6zp8dl2ityh8f8aWv34qCfZeB4IHBHfLiUo8RcGw SRUEN3r5Ym1W2uavMfj0IvV7jlqDhyPzMTUSO1JPzTlJK+gA83BGvINcfHqhc26TIMgH4dutsS2 M9fXEk9mjOhWua6FpLGR+wa3Qzqi0+2fhWCOVMhKUnZzo2UQD1n+sA9+u1YLfx6kyPepEg+edRs VpejKZ5BRxe12w1aSTbTajrmbcCjfzocpJrZvmS1PiMh4ZF39Y35bSBoWhq9HCP6WbPscS8cUnI Iyt02SXtgo2Nm7y1dSuvthgL9vrFa3k94KF6olP9XRIMLUOjQBf+1hl/qv/CbKItl61J/ycnjLT A/UDoASlnU38LCY8tWRVlrjsKO8N0H8LFZNFG7bkV4e2xSge65T2H3hOSdxZHm2JLGJ3hieO7zd f4YXCsoqNZ4xM4lU7AUyUg9ogFt X-TM-AS-User-Approved-Sender: Yes X-TM-AS-User-Blocked-Sender: No X-TMASE-Result: 10--11.091700-8.000000 X-TMASE-Version: SMEX-12.5.0.1300-8.5.1010-25022.003 X-MDID: 1572957589-cQd0oMrZfv7x Subject: Re: [dpdk-dev] [PATCH 1/3] ethdev: support API to set max LRO packet size 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 11/5/19 11:40 AM, Dekel Peled wrote: > This patch implements [1], to support API for configuration and > validation of max size for LRO aggregated packet. > API change notice [2] is removed, and release notes for 19.11 > are updated accordingly. > > Various PMDs using LRO offload are updated, the new data members are > initialized to ensure they don't fail validation. > > [1] http://patches.dpdk.org/patch/58217/ > [2] http://patches.dpdk.org/patch/57492/ > > Signed-off-by: Dekel Peled Few comments below, otherwise Reviewed-by: Andrew Rybchenko [snip] > diff --git a/lib/librte_ethdev/rte_ethdev.c b/lib/librte_ethdev/rte_ethdev.c > index 85ab5f0..2f52090 100644 > --- a/lib/librte_ethdev/rte_ethdev.c > +++ b/lib/librte_ethdev/rte_ethdev.c > @@ -1156,6 +1156,26 @@ struct rte_eth_dev * > return name; > } > > +static inline int > +rte_eth_check_lro_pkt_size(uint16_t port_id, uint32_t config_size, > + uint32_t dev_info_size) As I understand Thomas prefers static functions without rte_eth_ prefix. I think it is reasonable. > +{ > + int ret = 0; > + > + if (config_size > dev_info_size) { > + RTE_ETHDEV_LOG(ERR, "Ethdev port_id=%d max_lro_pkt_size %u > " > + "max allowed value %u\n", > + port_id, config_size, dev_info_size); > + ret = -EINVAL; > + } else if (config_size < RTE_ETHER_MIN_LEN) { Shouldn't config_size == 0 fallback to maximum? (I don't know and I simply would like to get comments on it) > + RTE_ETHDEV_LOG(ERR, "Ethdev port_id=%d max_lro_pkt_size %u < " > + "min allowed value %u\n", port_id, config_size, > + (unsigned int)RTE_ETHER_MIN_LEN); > + ret = -EINVAL; > + } > + return ret; > +} > + > int > rte_eth_dev_configure(uint16_t port_id, uint16_t nb_rx_q, uint16_t nb_tx_q, > const struct rte_eth_conf *dev_conf) > @@ -1286,6 +1306,18 @@ struct rte_eth_dev * > RTE_ETHER_MAX_LEN; > } > > + /* > + * If LRO is enabled, check that the maximum aggregated packet > + * size is supported by the configured device. > + */ > + if (dev_conf->rxmode.offloads & DEV_RX_OFFLOAD_TCP_LRO) { > + ret = rte_eth_check_lro_pkt_size( > + port_id, dev_conf->rxmode.max_lro_pkt_size, > + dev_info.max_lro_pkt_size); > + if (ret) if (ret != 0) https://doc.dpdk.org/guides/contributing/coding_style.html#function-calls and the style dominates in rte_ethdev.c > + goto rollback; > + } > + > /* Any requested offloading must be within its device capabilities */ > if ((dev_conf->rxmode.offloads & dev_info.rx_offload_capa) != > dev_conf->rxmode.offloads) { > @@ -1790,6 +1822,18 @@ struct rte_eth_dev * > return -EINVAL; > } > > + /* > + * If LRO is enabled, check that the maximum aggregated packet > + * size is supported by the configured device. > + */ > + if (local_conf.offloads & DEV_RX_OFFLOAD_TCP_LRO) { > + int ret = rte_eth_check_lro_pkt_size(port_id, > + dev->data->dev_conf.rxmode.max_lro_pkt_size, > + dev_info.max_lro_pkt_size); > + if (ret) if (ret != 0) https://doc.dpdk.org/guides/contributing/coding_style.html#function-calls and the style dominates in rte_ethdev.c > + return ret; > + } > + > ret = (*dev->dev_ops->rx_queue_setup)(dev, rx_queue_id, nb_rx_desc, > socket_id, &local_conf, mp); > if (!ret) { > [snip]