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GET /api/patches/64327/?format=api
{ "id": 64327, "url": "http://patches.dpdk.org/api/patches/64327/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/patch/20200109103822.89011-2-chenxux.di@intel.com/", "project": { "id": 1, "url": "http://patches.dpdk.org/api/projects/1/?format=api", "name": "DPDK", "link_name": "dpdk", "list_id": "dev.dpdk.org", "list_email": "dev@dpdk.org", "web_url": "http://core.dpdk.org", "scm_url": "git://dpdk.org/dpdk", "webscm_url": "http://git.dpdk.org/dpdk", "list_archive_url": "https://inbox.dpdk.org/dev", "list_archive_url_format": "https://inbox.dpdk.org/dev/{}", "commit_url_format": "" }, "msgid": "<20200109103822.89011-2-chenxux.di@intel.com>", "list_archive_url": "https://inbox.dpdk.org/dev/20200109103822.89011-2-chenxux.di@intel.com", "date": "2020-01-09T10:38:19", "name": "[v7,1/4] net/i40e: cleanup Tx buffers", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": true, "hash": "98385c30320a257a2d8c9cc13af11576c435ea69", "submitter": { "id": 1409, "url": "http://patches.dpdk.org/api/people/1409/?format=api", "name": "Chenxu Di", "email": "chenxux.di@intel.com" }, "delegate": { "id": 31221, "url": "http://patches.dpdk.org/api/users/31221/?format=api", "username": "yexl", "first_name": "xiaolong", "last_name": "ye", "email": "xiaolong.ye@intel.com" }, "mbox": "http://patches.dpdk.org/project/dpdk/patch/20200109103822.89011-2-chenxux.di@intel.com/mbox/", "series": [ { "id": 8026, "url": "http://patches.dpdk.org/api/series/8026/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/list/?series=8026", "date": "2020-01-09T10:38:18", "name": "drivers/net: cleanup Tx buffers", "version": 7, "mbox": "http://patches.dpdk.org/series/8026/mbox/" } ], "comments": "http://patches.dpdk.org/api/patches/64327/comments/", "check": "success", "checks": "http://patches.dpdk.org/api/patches/64327/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<dev-bounces@dpdk.org>", "X-Original-To": "patchwork@inbox.dpdk.org", "Delivered-To": "patchwork@inbox.dpdk.org", "Received": [ "from dpdk.org (dpdk.org [92.243.14.124])\n\tby inbox.dpdk.org (Postfix) with ESMTP id 1FAC5A046B;\n\tThu, 9 Jan 2020 11:38:59 +0100 (CET)", "from [92.243.14.124] (localhost [127.0.0.1])\n\tby dpdk.org (Postfix) with ESMTP id 119691DC16;\n\tThu, 9 Jan 2020 11:38:53 +0100 (CET)", "from mga02.intel.com (mga02.intel.com [134.134.136.20])\n by dpdk.org (Postfix) with ESMTP id 9150B1DC04\n for <dev@dpdk.org>; Thu, 9 Jan 2020 11:38:49 +0100 (CET)", "from fmsmga002.fm.intel.com ([10.253.24.26])\n by orsmga101.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384;\n 09 Jan 2020 02:38:48 -0800", "from intel.sh.intel.com ([10.239.255.149])\n by fmsmga002.fm.intel.com with ESMTP; 09 Jan 2020 02:38:47 -0800" ], "X-Amp-Result": "SKIPPED(no attachment in message)", "X-Amp-File-Uploaded": "False", "X-ExtLoop1": "1", "X-IronPort-AV": "E=Sophos;i=\"5.69,413,1571727600\"; d=\"scan'208\";a=\"254553001\"", "From": "Chenxu Di <chenxux.di@intel.com>", "To": "dev@dpdk.org", "Cc": "Yang Qiming <qiming.yang@intel.com>,\n\tChenxu Di <chenxux.di@intel.com>", "Date": "Thu, 9 Jan 2020 10:38:19 +0000", "Message-Id": "<20200109103822.89011-2-chenxux.di@intel.com>", "X-Mailer": "git-send-email 2.17.1", "In-Reply-To": "<20200109103822.89011-1-chenxux.di@intel.com>", "References": "<20191203055134.72874-1-chenxux.di@intel.com>\n <20200109103822.89011-1-chenxux.di@intel.com>", "Subject": "[dpdk-dev] [PATCH v7 1/4] net/i40e: cleanup Tx buffers", "X-BeenThere": "dev@dpdk.org", "X-Mailman-Version": "2.1.15", "Precedence": "list", "List-Id": "DPDK patches and discussions <dev.dpdk.org>", "List-Unsubscribe": "<https://mails.dpdk.org/options/dev>,\n <mailto:dev-request@dpdk.org?subject=unsubscribe>", "List-Archive": "<http://mails.dpdk.org/archives/dev/>", "List-Post": "<mailto:dev@dpdk.org>", "List-Help": "<mailto:dev-request@dpdk.org?subject=help>", "List-Subscribe": "<https://mails.dpdk.org/listinfo/dev>,\n <mailto:dev-request@dpdk.org?subject=subscribe>", "Errors-To": "dev-bounces@dpdk.org", "Sender": "\"dev\" <dev-bounces@dpdk.org>" }, "content": "Add support to the i40e driver for the API rte_eth_tx_done_cleanup\nto force free consumed buffers on Tx ring.\n\nSigned-off-by: Chenxu Di <chenxux.di@intel.com>\n---\n drivers/net/i40e/i40e_ethdev.c | 3 +\n drivers/net/i40e/i40e_ethdev_vf.c | 3 +\n drivers/net/i40e/i40e_rxtx.c | 151 ++++++++++++++++++++++++++++++\n drivers/net/i40e/i40e_rxtx.h | 8 ++\n 4 files changed, 165 insertions(+)", "diff": "diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c\nindex 5999c964b..e0b071891 100644\n--- a/drivers/net/i40e/i40e_ethdev.c\n+++ b/drivers/net/i40e/i40e_ethdev.c\n@@ -522,6 +522,7 @@ static const struct eth_dev_ops i40e_eth_dev_ops = {\n \t.mac_addr_set = i40e_set_default_mac_addr,\n \t.mtu_set = i40e_dev_mtu_set,\n \t.tm_ops_get = i40e_tm_ops_get,\n+\t.tx_done_cleanup = i40e_tx_done_cleanup,\n };\n \n /* store statistics names and its offset in stats structure */\n@@ -1358,6 +1359,8 @@ eth_i40e_dev_init(struct rte_eth_dev *dev, void *init_params __rte_unused)\n \tdev->tx_pkt_burst = i40e_xmit_pkts;\n \tdev->tx_pkt_prepare = i40e_prep_pkts;\n \n+\ti40e_set_tx_done_cleanup_func(i40e_tx_done_cleanup_scalar);\n+\n \t/* for secondary processes, we don't initialise any further as primary\n \t * has already done this work. Only check we don't need a different\n \t * RX function */\ndiff --git a/drivers/net/i40e/i40e_ethdev_vf.c b/drivers/net/i40e/i40e_ethdev_vf.c\nindex 5dba0928b..3dcc9434c 100644\n--- a/drivers/net/i40e/i40e_ethdev_vf.c\n+++ b/drivers/net/i40e/i40e_ethdev_vf.c\n@@ -215,6 +215,7 @@ static const struct eth_dev_ops i40evf_eth_dev_ops = {\n \t.rss_hash_conf_get = i40evf_dev_rss_hash_conf_get,\n \t.mtu_set = i40evf_dev_mtu_set,\n \t.mac_addr_set = i40evf_set_default_mac_addr,\n+\t.tx_done_cleanup = i40e_tx_done_cleanup,\n };\n \n /*\n@@ -1473,6 +1474,8 @@ i40evf_dev_init(struct rte_eth_dev *eth_dev)\n \teth_dev->rx_pkt_burst = &i40e_recv_pkts;\n \teth_dev->tx_pkt_burst = &i40e_xmit_pkts;\n \n+\ti40e_set_tx_done_cleanup_func(i40e_tx_done_cleanup_scalar);\n+\n \t/*\n \t * For secondary processes, we don't initialise any further as primary\n \t * has already done this work.\ndiff --git a/drivers/net/i40e/i40e_rxtx.c b/drivers/net/i40e/i40e_rxtx.c\nindex 17dc8c78f..dfbca06b6 100644\n--- a/drivers/net/i40e/i40e_rxtx.c\n+++ b/drivers/net/i40e/i40e_rxtx.c\n@@ -2455,6 +2455,154 @@ i40e_tx_queue_release_mbufs(struct i40e_tx_queue *txq)\n \t}\n }\n \n+static i40e_tx_done_cleanup_t i40e_tx_done_cleanup_op;\n+\n+int\n+i40e_tx_done_cleanup_scalar(struct i40e_tx_queue *txq,\n+\t\t\tuint32_t free_cnt)\n+{\n+\tuint32_t pkt_cnt;\n+\tuint16_t i;\n+\tuint16_t tx_last;\n+\tuint16_t tx_id;\n+\tuint16_t nb_tx_to_clean;\n+\tuint16_t nb_tx_free_last;\n+\tstruct i40e_tx_entry *swr_ring = txq->sw_ring;\n+\n+\t/* Start free mbuf from the next of tx_tail */\n+\ttx_last = txq->tx_tail;\n+\ttx_id = swr_ring[tx_last].next_id;\n+\n+\tif (txq->nb_tx_free == 0)\n+\t\tif (i40e_xmit_cleanup(txq))\n+\t\t\treturn 0;\n+\n+\tnb_tx_to_clean = txq->nb_tx_free;\n+\tnb_tx_free_last = txq->nb_tx_free;\n+\tif (!free_cnt)\n+\t\tfree_cnt = txq->nb_tx_desc;\n+\n+\t/* Loop through swr_ring to count the amount of\n+\t * freeable mubfs and packets.\n+\t */\n+\tfor (pkt_cnt = 0; pkt_cnt < free_cnt; ) {\n+\t\tfor (i = 0; i < nb_tx_to_clean &&\n+\t\t\tpkt_cnt < free_cnt &&\n+\t\t\ttx_id != tx_last; i++) {\n+\t\t\tif (swr_ring[tx_id].mbuf != NULL) {\n+\t\t\t\trte_pktmbuf_free_seg(swr_ring[tx_id].mbuf);\n+\t\t\t\tswr_ring[tx_id].mbuf = NULL;\n+\n+\t\t\t\t/*\n+\t\t\t\t * last segment in the packet,\n+\t\t\t\t * increment packet count\n+\t\t\t\t */\n+\t\t\t\tpkt_cnt += (swr_ring[tx_id].last_id == tx_id);\n+\t\t\t}\n+\n+\t\t\ttx_id = swr_ring[tx_id].next_id;\n+\t\t}\n+\n+\t\tif (tx_id == tx_last || txq->tx_rs_thresh\n+\t\t\t> txq->nb_tx_desc - txq->nb_tx_free)\n+\t\t\tbreak;\n+\n+\t\tif (pkt_cnt < free_cnt) {\n+\t\t\tif (i40e_xmit_cleanup(txq))\n+\t\t\t\tbreak;\n+\n+\t\t\tnb_tx_to_clean = txq->nb_tx_free - nb_tx_free_last;\n+\t\t\tnb_tx_free_last = txq->nb_tx_free;\n+\t\t}\n+\t}\n+\n+\tPMD_TX_FREE_LOG(DEBUG,\n+\t\t\"Free %u Packets successfully \"\n+\t\t\"(port=%d queue=%d)\",\n+\t\tpkt_cnt, txq->port_id, txq->queue_id);\n+\n+\treturn (int)pkt_cnt;\n+}\n+\n+int\n+i40e_tx_done_cleanup_simple(struct i40e_tx_queue *txq,\n+\t\t\tuint32_t free_cnt)\n+{\n+\tuint16_t i;\n+\tuint16_t tx_first;\n+\tuint16_t tx_id;\n+\tuint32_t pkt_cnt;\n+\tstruct i40e_tx_entry *swr_ring = txq->sw_ring;\n+\n+\t/* Start free mbuf from tx_first */\n+\ttx_first = txq->tx_next_dd - (txq->tx_rs_thresh - 1);\n+\ttx_id = tx_first;\n+\n+\t/* while free_cnt is 0,\n+\t * suppose one mbuf per packet,\n+\t * try to free packets as many as possible\n+\t */\n+\tif (free_cnt == 0)\n+\t\tfree_cnt = txq->nb_tx_desc;\n+\n+\t/* Loop through swr_ring to count freeable packets */\n+\tfor (pkt_cnt = 0; pkt_cnt < free_cnt; ) {\n+\t\tif (txq->nb_tx_desc - txq->nb_tx_free < txq->tx_rs_thresh)\n+\t\t\tbreak;\n+\n+\t\tif (!i40e_tx_free_bufs(txq))\n+\t\t\tbreak;\n+\n+\t\tfor (i = 0; i != txq->tx_rs_thresh &&\n+\t\t\ttx_id != tx_first; i++) {\n+\t\t\t/* last segment in the packet,\n+\t\t\t * increment packet count\n+\t\t\t */\n+\t\t\tpkt_cnt += (tx_id == swr_ring[tx_id].last_id);\n+\t\t\ttx_id = swr_ring[tx_id].next_id;\n+\t\t}\n+\n+\t\tif (tx_id == tx_first)\n+\t\t\tbreak;\n+\t}\n+\n+\tPMD_TX_FREE_LOG(DEBUG,\n+\t\t\"Free %u packets successfully \"\n+\t\t\"(port=%d queue=%d)\",\n+\t\tpkt_cnt, txq->port_id, txq->queue_id);\n+\n+\treturn (int)pkt_cnt;\n+}\n+\n+int\n+i40e_tx_done_cleanup_vec(struct i40e_tx_queue *txq __rte_unused,\n+\t\t\tuint32_t free_cnt __rte_unused)\n+{\n+\treturn -ENOTSUP;\n+}\n+int\n+i40e_tx_done_cleanup(void *txq, uint32_t free_cnt)\n+{\n+\ti40e_tx_done_cleanup_t func = i40e_get_tx_done_cleanup_func();\n+\n+\tif (!func)\n+\t\treturn -ENOTSUP;\n+\n+\treturn func(txq, free_cnt);\n+}\n+\n+void\n+i40e_set_tx_done_cleanup_func(i40e_tx_done_cleanup_t fn)\n+{\n+\ti40e_tx_done_cleanup_op = fn;\n+}\n+\n+i40e_tx_done_cleanup_t\n+i40e_get_tx_done_cleanup_func(void)\n+{\n+\treturn i40e_tx_done_cleanup_op;\n+}\n+\n void\n i40e_reset_tx_queue(struct i40e_tx_queue *txq)\n {\n@@ -3139,15 +3287,18 @@ i40e_set_tx_function(struct rte_eth_dev *dev)\n \t\t\telse\n \t\t\t\tdev->tx_pkt_burst =\n \t\t\t\t\ti40e_get_recommend_tx_vec();\n+\t\t\ti40e_set_tx_done_cleanup_func(i40e_tx_done_cleanup_vec);\n \t\t} else {\n \t\t\tPMD_INIT_LOG(DEBUG, \"Simple tx finally be used.\");\n \t\t\tdev->tx_pkt_burst = i40e_xmit_pkts_simple;\n+\t\t\ti40e_set_tx_done_cleanup_func(i40e_tx_done_cleanup_simple);\n \t\t}\n \t\tdev->tx_pkt_prepare = NULL;\n \t} else {\n \t\tPMD_INIT_LOG(DEBUG, \"Xmit tx finally be used.\");\n \t\tdev->tx_pkt_burst = i40e_xmit_pkts;\n \t\tdev->tx_pkt_prepare = i40e_prep_pkts;\n+\t\ti40e_set_tx_done_cleanup_func(i40e_tx_done_cleanup_scalar);\n \t}\n }\n \ndiff --git a/drivers/net/i40e/i40e_rxtx.h b/drivers/net/i40e/i40e_rxtx.h\nindex 2106bb355..ab2c0ffd0 100644\n--- a/drivers/net/i40e/i40e_rxtx.h\n+++ b/drivers/net/i40e/i40e_rxtx.h\n@@ -173,6 +173,8 @@ union i40e_tx_offload {\n \t\tuint64_t outer_l3_len:16; /**< outer L3 Header Length */\n \t};\n };\n+typedef int (*i40e_tx_done_cleanup_t)(struct i40e_tx_queue *txq,\n+\t\t\t\tuint32_t free_cnt);\n \n int i40e_dev_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id);\n int i40e_dev_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id);\n@@ -212,6 +214,12 @@ void i40e_dev_free_queues(struct rte_eth_dev *dev);\n void i40e_reset_rx_queue(struct i40e_rx_queue *rxq);\n void i40e_reset_tx_queue(struct i40e_tx_queue *txq);\n void i40e_tx_queue_release_mbufs(struct i40e_tx_queue *txq);\n+void i40e_set_tx_done_cleanup_func(i40e_tx_done_cleanup_t fn);\n+i40e_tx_done_cleanup_t i40e_get_tx_done_cleanup_func(void);\n+int i40e_tx_done_cleanup(void *txq, uint32_t free_cnt);\n+int i40e_tx_done_cleanup_scalar(struct i40e_tx_queue *txq, uint32_t free_cnt);\n+int i40e_tx_done_cleanup_vec(struct i40e_tx_queue *txq, uint32_t free_cnt);\n+int i40e_tx_done_cleanup_simple(struct i40e_tx_queue *txq, uint32_t free_cnt);\n int i40e_alloc_rx_queue_mbufs(struct i40e_rx_queue *rxq);\n void i40e_rx_queue_release_mbufs(struct i40e_rx_queue *rxq);\n \n", "prefixes": [ "v7", "1/4" ] }