From patchwork Tue Oct 27 06:23:14 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jiawen Wu X-Patchwork-Id: 82268 X-Patchwork-Delegate: ferruh.yigit@amd.com Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id E9F8DA04B5; Tue, 27 Oct 2020 07:21:40 +0100 (CET) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 5CD5E2BD3; Tue, 27 Oct 2020 07:21:38 +0100 (CET) Received: from smtpbg511.qq.com (smtpbg511.qq.com [203.205.250.109]) by dpdk.org (Postfix) with ESMTP id 43B8829C6 for ; Tue, 27 Oct 2020 07:21:35 +0100 (CET) X-QQ-mid: bizesmtp19t1603779690tquv4z38 Received: from localhost.localdomain.com (unknown [183.129.236.74]) by esmtp10.qq.com (ESMTP) with id ; Tue, 27 Oct 2020 14:21:24 +0800 (CST) X-QQ-SSF: 01400000002000C0C000B00A0000000 X-QQ-FEAT: O9RHVi+JMbJRSoi4OaoTX+FJjhE6UVFcOkCd5gFPyPxTizC0anlXj8oIQ359F j10QiKmTOSXBIcMnzrKkzPAVXuzR3rQVeWqvrcVnYyK+hOnuA2atz4d4NE4t7E7/ctuYShw W111xREvd8lBz7sUpl1TfiLXE5HGkh28Elg7EPRmgSgyMNSTcvp7awQH6oQBIMmJRp0e46r XkW9D0Bkb1YAqqAho4chBn20Yj+X33jY+m6i2c+4Aia/n+BAm5DrODsSCwv/eICbNZrx/4U D2GQuvqP4s4hk+zRIJCC+EaW94fX/S1Gk3w5Ibf7DlIvSsovQ8hykq/euE4jhFGNktouual ZM0ox8SyG9W2VaZjHxfO+WQLAOl6Q== X-QQ-GoodBg: 2 From: Jiawen Wu To: dev@dpdk.org Cc: Jiawen Wu Date: Tue, 27 Oct 2020 14:23:14 +0800 Message-Id: <20201027062315.242576-1-jiawenwu@trustnetic.com> X-Mailer: git-send-email 2.18.4 X-QQ-SENDSIZE: 520 Feedback-ID: bizesmtp:trustnetic.com:qybgforeign:qybgforeign5 X-QQ-Bgrelay: 1 Subject: [dpdk-dev] [PATCH 1/2] net/txgbe: add Rx and Tx descriptor status 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" Supports check the status of Rx and Tx descriptors. Signed-off-by: Jiawen Wu Reviewed-by: Ferruh Yigit --- doc/guides/nics/features/txgbe.ini | 2 + drivers/net/txgbe/txgbe_ethdev.c | 3 ++ drivers/net/txgbe/txgbe_ethdev.h | 6 +++ drivers/net/txgbe/txgbe_rxtx.c | 73 ++++++++++++++++++++++++++++++ 4 files changed, 84 insertions(+) diff --git a/doc/guides/nics/features/txgbe.ini b/doc/guides/nics/features/txgbe.ini index 1684bcc7e..7c457fede 100644 --- a/doc/guides/nics/features/txgbe.ini +++ b/doc/guides/nics/features/txgbe.ini @@ -37,6 +37,8 @@ Inner L3 checksum = P Inner L4 checksum = P Packet type parsing = Y Timesync = Y +Rx descriptor status = Y +Tx descriptor status = Y Basic stats = Y Extended stats = Y Stats per queue = Y diff --git a/drivers/net/txgbe/txgbe_ethdev.c b/drivers/net/txgbe/txgbe_ethdev.c index 77292f07f..d4014d5c4 100644 --- a/drivers/net/txgbe/txgbe_ethdev.c +++ b/drivers/net/txgbe/txgbe_ethdev.c @@ -480,6 +480,9 @@ eth_txgbe_dev_init(struct rte_eth_dev *eth_dev, void *init_params __rte_unused) PMD_INIT_FUNC_TRACE(); eth_dev->dev_ops = &txgbe_eth_dev_ops; + eth_dev->rx_queue_count = txgbe_dev_rx_queue_count; + eth_dev->rx_descriptor_status = txgbe_dev_rx_descriptor_status; + eth_dev->tx_descriptor_status = txgbe_dev_tx_descriptor_status; eth_dev->rx_pkt_burst = &txgbe_recv_pkts; eth_dev->tx_pkt_burst = &txgbe_xmit_pkts; eth_dev->tx_pkt_prepare = &txgbe_prep_pkts; diff --git a/drivers/net/txgbe/txgbe_ethdev.h b/drivers/net/txgbe/txgbe_ethdev.h index 2ee0290b7..331be9244 100644 --- a/drivers/net/txgbe/txgbe_ethdev.h +++ b/drivers/net/txgbe/txgbe_ethdev.h @@ -219,6 +219,12 @@ int txgbe_dev_tx_queue_setup(struct rte_eth_dev *dev, uint16_t tx_queue_id, uint16_t nb_tx_desc, unsigned int socket_id, const struct rte_eth_txconf *tx_conf); +uint32_t txgbe_dev_rx_queue_count(struct rte_eth_dev *dev, + uint16_t rx_queue_id); + +int txgbe_dev_rx_descriptor_status(void *rx_queue, uint16_t offset); +int txgbe_dev_tx_descriptor_status(void *tx_queue, uint16_t offset); + int txgbe_dev_rx_init(struct rte_eth_dev *dev); void txgbe_dev_tx_init(struct rte_eth_dev *dev); diff --git a/drivers/net/txgbe/txgbe_rxtx.c b/drivers/net/txgbe/txgbe_rxtx.c index 4dee4ac16..e57c87759 100644 --- a/drivers/net/txgbe/txgbe_rxtx.c +++ b/drivers/net/txgbe/txgbe_rxtx.c @@ -2536,6 +2536,79 @@ txgbe_dev_rx_queue_setup(struct rte_eth_dev *dev, return 0; } +uint32_t +txgbe_dev_rx_queue_count(struct rte_eth_dev *dev, uint16_t rx_queue_id) +{ +#define TXGBE_RXQ_SCAN_INTERVAL 4 + volatile struct txgbe_rx_desc *rxdp; + struct txgbe_rx_queue *rxq; + uint32_t desc = 0; + + rxq = dev->data->rx_queues[rx_queue_id]; + rxdp = &rxq->rx_ring[rxq->rx_tail]; + + while ((desc < rxq->nb_rx_desc) && + (rxdp->qw1.lo.status & + rte_cpu_to_le_32(TXGBE_RXD_STAT_DD))) { + desc += TXGBE_RXQ_SCAN_INTERVAL; + rxdp += TXGBE_RXQ_SCAN_INTERVAL; + if (rxq->rx_tail + desc >= rxq->nb_rx_desc) + rxdp = &(rxq->rx_ring[rxq->rx_tail + + desc - rxq->nb_rx_desc]); + } + + return desc; +} + +int +txgbe_dev_rx_descriptor_status(void *rx_queue, uint16_t offset) +{ + struct txgbe_rx_queue *rxq = rx_queue; + volatile uint32_t *status; + uint32_t nb_hold, desc; + + if (unlikely(offset >= rxq->nb_rx_desc)) + return -EINVAL; + + nb_hold = rxq->nb_rx_hold; + if (offset >= rxq->nb_rx_desc - nb_hold) + return RTE_ETH_RX_DESC_UNAVAIL; + + desc = rxq->rx_tail + offset; + if (desc >= rxq->nb_rx_desc) + desc -= rxq->nb_rx_desc; + + status = &rxq->rx_ring[desc].qw1.lo.status; + if (*status & rte_cpu_to_le_32(TXGBE_RXD_STAT_DD)) + return RTE_ETH_RX_DESC_DONE; + + return RTE_ETH_RX_DESC_AVAIL; +} + +int +txgbe_dev_tx_descriptor_status(void *tx_queue, uint16_t offset) +{ + struct txgbe_tx_queue *txq = tx_queue; + volatile uint32_t *status; + uint32_t desc; + + if (unlikely(offset >= txq->nb_tx_desc)) + return -EINVAL; + + desc = txq->tx_tail + offset; + if (desc >= txq->nb_tx_desc) { + desc -= txq->nb_tx_desc; + if (desc >= txq->nb_tx_desc) + desc -= txq->nb_tx_desc; + } + + status = &txq->tx_ring[desc].dw3; + if (*status & rte_cpu_to_le_32(TXGBE_TXD_DD)) + return RTE_ETH_TX_DESC_DONE; + + return RTE_ETH_TX_DESC_FULL; +} + void __rte_cold txgbe_dev_clear_queues(struct rte_eth_dev *dev) {