From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from stargate3.asicdesigners.com (stargate.chelsio.com [67.207.112.58]) by dpdk.org (Postfix) with ESMTP id 0EB0A58C3 for ; Mon, 1 Jun 2015 19:31:42 +0200 (CEST) Received: from localhost (scalar.blr.asicdesigners.com [10.193.185.94]) by stargate3.asicdesigners.com (8.13.8/8.13.8) with ESMTP id t51HVdVD031910; Mon, 1 Jun 2015 10:31:40 -0700 From: Rahul Lakkireddy To: dev@dpdk.org Date: Mon, 1 Jun 2015 23:00:34 +0530 Message-Id: <5503258e5ffd1125eec3664d900c89ec798a996a.1433164517.git.rahul.lakkireddy@chelsio.com> X-Mailer: git-send-email 2.4.1 In-Reply-To: References: In-Reply-To: References: Cc: Felix Marti , Kumar Sanghvi , Nirranjan Kirubaharan Subject: [dpdk-dev] [PATCH v2 08/11] cxgbe: add flow control functions for cxgbe PMD. X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 01 Jun 2015 17:31:43 -0000 Adds flow control related eth_dev_ops for cxgbe poll mode driver. Signed-off-by: Rahul Lakkireddy Signed-off-by: Kumar Sanghvi --- v2: - This patch is a subset of patch 2/5 submitted in v1. drivers/net/cxgbe/cxgbe_ethdev.c | 54 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) diff --git a/drivers/net/cxgbe/cxgbe_ethdev.c b/drivers/net/cxgbe/cxgbe_ethdev.c index c0dd5f3..478051a 100644 --- a/drivers/net/cxgbe/cxgbe_ethdev.c +++ b/drivers/net/cxgbe/cxgbe_ethdev.c @@ -642,6 +642,58 @@ static void cxgbe_dev_stats_reset(struct rte_eth_dev *eth_dev) } } +static int cxgbe_flow_ctrl_get(struct rte_eth_dev *eth_dev, + struct rte_eth_fc_conf *fc_conf) +{ + struct port_info *pi = (struct port_info *)(eth_dev->data->dev_private); + struct link_config *lc = &pi->link_cfg; + int rx_pause, tx_pause; + + fc_conf->autoneg = lc->fc & PAUSE_AUTONEG; + rx_pause = lc->fc & PAUSE_RX; + tx_pause = lc->fc & PAUSE_TX; + + if (rx_pause && tx_pause) + fc_conf->mode = RTE_FC_FULL; + else if (rx_pause) + fc_conf->mode = RTE_FC_RX_PAUSE; + else if (tx_pause) + fc_conf->mode = RTE_FC_TX_PAUSE; + else + fc_conf->mode = RTE_FC_NONE; + return 0; +} + +static int cxgbe_flow_ctrl_set(struct rte_eth_dev *eth_dev, + struct rte_eth_fc_conf *fc_conf) +{ + struct port_info *pi = (struct port_info *)(eth_dev->data->dev_private); + struct adapter *adapter = pi->adapter; + struct link_config *lc = &pi->link_cfg; + + if (lc->supported & FW_PORT_CAP_ANEG) { + if (fc_conf->autoneg) + lc->requested_fc |= PAUSE_AUTONEG; + else + lc->requested_fc &= ~PAUSE_AUTONEG; + } + + if (((fc_conf->mode & RTE_FC_FULL) == RTE_FC_FULL) || + (fc_conf->mode & RTE_FC_RX_PAUSE)) + lc->requested_fc |= PAUSE_RX; + else + lc->requested_fc &= ~PAUSE_RX; + + if (((fc_conf->mode & RTE_FC_FULL) == RTE_FC_FULL) || + (fc_conf->mode & RTE_FC_TX_PAUSE)) + lc->requested_fc |= PAUSE_TX; + else + lc->requested_fc &= ~PAUSE_TX; + + return t4_link_l1cfg(adapter, adapter->mbox, pi->tx_chan, + &pi->link_cfg); +} + static struct eth_dev_ops cxgbe_eth_dev_ops = { .dev_start = cxgbe_dev_start, .dev_stop = cxgbe_dev_stop, @@ -663,6 +715,8 @@ static struct eth_dev_ops cxgbe_eth_dev_ops = { .rx_queue_release = cxgbe_dev_rx_queue_release, .stats_get = cxgbe_dev_stats_get, .stats_reset = cxgbe_dev_stats_reset, + .flow_ctrl_get = cxgbe_flow_ctrl_get, + .flow_ctrl_set = cxgbe_flow_ctrl_set, }; /* -- 2.4.1