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 0F621A04B5; Tue, 3 Dec 2019 07:40:09 +0100 (CET) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 382D11BE80; Tue, 3 Dec 2019 07:39:57 +0100 (CET) Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by dpdk.org (Postfix) with ESMTP id AF1C41BE80 for ; Tue, 3 Dec 2019 07:39:55 +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 fmsmga101.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 02 Dec 2019 22:39:55 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.69,272,1571727600"; d="scan'208";a="242266555" Received: from intel.sh.intel.com ([10.239.255.149]) by fmsmga002.fm.intel.com with ESMTP; 02 Dec 2019 22:39:54 -0800 From: Chenxu Di To: dev@dpdk.org Cc: Yang Qiming , Di ChenxuX Date: Tue, 3 Dec 2019 05:51:32 +0000 Message-Id: <20191203055134.72874-3-chenxux.di@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20191203055134.72874-1-chenxux.di@intel.com> References: <20191203055134.72874-1-chenxux.di@intel.com> Subject: [dpdk-dev] [PATCH 2/4] net/i40e: cleanup Tx buffers X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" From: Di ChenxuX Add support to the i40e driver for the API rte_eth_tx_done_cleanup to force free consumed buffers on Tx ring. Signed-off-by: Di ChenxuX --- drivers/net/i40e/i40e_ethdev.c | 1 + drivers/net/i40e/i40e_ethdev_vf.c | 1 + drivers/net/i40e/i40e_rxtx.c | 40 +++++++++++++++++++++++++++++++ drivers/net/i40e/i40e_rxtx.h | 1 + 4 files changed, 43 insertions(+) diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c index 4e40b7ab5..cf35fb5da 100644 --- a/drivers/net/i40e/i40e_ethdev.c +++ b/drivers/net/i40e/i40e_ethdev.c @@ -509,6 +509,7 @@ static const struct eth_dev_ops i40e_eth_dev_ops = { .mac_addr_set = i40e_set_default_mac_addr, .mtu_set = i40e_dev_mtu_set, .tm_ops_get = i40e_tm_ops_get, + .tx_done_cleanup = i40e_tx_done_cleanup, }; /* store statistics names and its offset in stats structure */ diff --git a/drivers/net/i40e/i40e_ethdev_vf.c b/drivers/net/i40e/i40e_ethdev_vf.c index c77b30c54..b462a9d8c 100644 --- a/drivers/net/i40e/i40e_ethdev_vf.c +++ b/drivers/net/i40e/i40e_ethdev_vf.c @@ -215,6 +215,7 @@ static const struct eth_dev_ops i40evf_eth_dev_ops = { .rss_hash_conf_get = i40evf_dev_rss_hash_conf_get, .mtu_set = i40evf_dev_mtu_set, .mac_addr_set = i40evf_set_default_mac_addr, + .tx_done_cleanup = i40e_tx_done_cleanup, }; /* diff --git a/drivers/net/i40e/i40e_rxtx.c b/drivers/net/i40e/i40e_rxtx.c index 692c3bab4..4296b6195 100644 --- a/drivers/net/i40e/i40e_rxtx.c +++ b/drivers/net/i40e/i40e_rxtx.c @@ -2467,6 +2467,46 @@ i40e_tx_queue_release_mbufs(struct i40e_tx_queue *txq) } } +int i40e_tx_done_cleanup(void *txq, uint32_t free_cnt) +{ + struct i40e_tx_queue *q = (struct i40e_tx_queue *)txq; + struct i40e_tx_entry *sw_ring; + uint16_t tx_id; /* Current segment being processed. */ + uint16_t tx_cleaned; + + int count = 0; + + if (q == NULL) + return -ENODEV; + + sw_ring = q->sw_ring; + tx_cleaned = q->last_desc_cleaned; + tx_id = sw_ring[q->last_desc_cleaned].next_id; + if ((q->tx_ring[tx_id].cmd_type_offset_bsz & + rte_cpu_to_le_64(I40E_TXD_QW1_DTYPE_MASK)) != + rte_cpu_to_le_64(I40E_TX_DESC_DTYPE_DESC_DONE)) + return 0; + + do { + if (sw_ring[tx_id].mbuf == NULL) + break; + + rte_pktmbuf_free_seg(sw_ring[tx_id].mbuf); + sw_ring[tx_id].mbuf = NULL; + sw_ring[tx_id].last_id = tx_id; + + /* Move to next segemnt. */ + tx_cleaned = tx_id; + tx_id = sw_ring[tx_id].next_id; + count++; + } while (count != (int)free_cnt); + + q->nb_tx_free += (uint16_t)count; + q->last_desc_cleaned = tx_cleaned; + + return count; +} + void i40e_reset_tx_queue(struct i40e_tx_queue *txq) { diff --git a/drivers/net/i40e/i40e_rxtx.h b/drivers/net/i40e/i40e_rxtx.h index 3fc619af9..1a70eda2c 100644 --- a/drivers/net/i40e/i40e_rxtx.h +++ b/drivers/net/i40e/i40e_rxtx.h @@ -204,6 +204,7 @@ void i40e_dev_free_queues(struct rte_eth_dev *dev); void i40e_reset_rx_queue(struct i40e_rx_queue *rxq); void i40e_reset_tx_queue(struct i40e_tx_queue *txq); void i40e_tx_queue_release_mbufs(struct i40e_tx_queue *txq); +int i40e_tx_done_cleanup(void *txq, uint32_t free_cnt); int i40e_alloc_rx_queue_mbufs(struct i40e_rx_queue *rxq); void i40e_rx_queue_release_mbufs(struct i40e_rx_queue *rxq); -- 2.17.1