From 3babd88ec4f46974b7b2c3c0fc1c03ec3677b649 Mon Sep 17 00:00:00 2001 From: Tomasz Duszynski Date: Thu, 15 Mar 2018 08:52:03 +0100 Subject: [PATCH] net/mrvl: add Rx flow control Add Rx side flow control support. Signed-off-by: Natalie Samsonov Signed-off-by: Tomasz Duszynski --- doc/guides/nics/features/mrvl.ini | 1 + doc/guides/nics/mrvl.rst | 1 + drivers/net/mrvl/mrvl_ethdev.c | 78 +++++++++++++++++++++++++++++++ 3 files changed, 80 insertions(+) diff --git a/doc/guides/nics/features/mrvl.ini b/doc/guides/nics/features/mrvl.ini index 120fd4d1ca..8673a5678b 100644 --- a/doc/guides/nics/features/mrvl.ini +++ b/doc/guides/nics/features/mrvl.ini @@ -13,6 +13,7 @@ Allmulticast mode = Y Unicast MAC filter = Y Multicast MAC filter = Y RSS hash = Y +Flow control = Y VLAN filter = Y CRC offload = Y L3 checksum offload = Y diff --git a/doc/guides/nics/mrvl.rst b/doc/guides/nics/mrvl.rst index 7678265368..550bd79595 100644 --- a/doc/guides/nics/mrvl.rst +++ b/doc/guides/nics/mrvl.rst @@ -72,6 +72,7 @@ Features of the MRVL PMD are: - Basic stats - Extended stats - QoS +- RX flow control Limitations diff --git a/drivers/net/mrvl/mrvl_ethdev.c b/drivers/net/mrvl/mrvl_ethdev.c index 880bd0b2dd..bf596f4c5a 100644 --- a/drivers/net/mrvl/mrvl_ethdev.c +++ b/drivers/net/mrvl/mrvl_ethdev.c @@ -1695,6 +1695,82 @@ mrvl_tx_queue_release(void *txq) rte_free(q); } +/** + * DPDK callback to get flow control configuration. + * + * @param dev + * Pointer to Ethernet device structure. + * @param fc_conf + * Pointer to the flow control configuration. + * + * @return + * 0 on success, negative error value otherwise. + */ +static int +mrvl_flow_ctrl_get(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf) +{ + struct mrvl_priv *priv = dev->data->dev_private; + int ret, en; + + if (!priv) + return -EPERM; + + ret = pp2_ppio_get_rx_pause(priv->ppio, &en); + if (ret) { + RTE_LOG(ERR, PMD, "Failed to read rx pause state\n"); + return ret; + } + + fc_conf->mode = en ? RTE_FC_RX_PAUSE : RTE_FC_NONE; + + return 0; +} + +/** + * DPDK callback to set flow control configuration. + * + * @param dev + * Pointer to Ethernet device structure. + * @param fc_conf + * Pointer to the flow control configuration. + * + * @return + * 0 on success, negative error value otherwise. + */ +static int +mrvl_flow_ctrl_set(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf) +{ + struct mrvl_priv *priv = dev->data->dev_private; + + if (!priv) + return -EPERM; + + if (fc_conf->high_water || + fc_conf->low_water || + fc_conf->pause_time || + fc_conf->mac_ctrl_frame_fwd || + fc_conf->autoneg) { + RTE_LOG(ERR, PMD, "Flowctrl parameter is not supported\n"); + + return -EINVAL; + } + + if (fc_conf->mode == RTE_FC_NONE || + fc_conf->mode == RTE_FC_RX_PAUSE) { + int ret, en; + + en = fc_conf->mode == RTE_FC_NONE ? 0 : 1; + ret = pp2_ppio_set_rx_pause(priv->ppio, en); + if (ret) + RTE_LOG(ERR, PMD, + "Failed to change flowctrl on RX side\n"); + + return ret; + } + + return 0; +} + /** * Update RSS hash configuration * @@ -1814,6 +1890,8 @@ static const struct eth_dev_ops mrvl_ops = { .rx_queue_release = mrvl_rx_queue_release, .tx_queue_setup = mrvl_tx_queue_setup, .tx_queue_release = mrvl_tx_queue_release, + .flow_ctrl_get = mrvl_flow_ctrl_get, + .flow_ctrl_set = mrvl_flow_ctrl_set, .rss_hash_update = mrvl_rss_hash_update, .rss_hash_conf_get = mrvl_rss_hash_conf_get, .filter_ctrl = mrvl_eth_filter_ctrl, -- 2.20.1