From: Alejandro Lucero Date: Tue, 17 Apr 2018 09:16:53 +0000 (+0100) Subject: net/nfp: support MAC address change X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=2fe669f4bcd2;p=dpdk.git net/nfp: support MAC address change This patch allows to use another MAC address than the one coming with the NIC by default. The change requires to tell the vNIC after writing into the port BAR space. The change will fail if the port is enabled and the vNIC does not support a live address change. Signed-off-by: Alejandro Lucero --- diff --git a/drivers/net/nfp/nfp_net.c b/drivers/net/nfp/nfp_net.c index bedd4b6687..2a4b006e06 100644 --- a/drivers/net/nfp/nfp_net.c +++ b/drivers/net/nfp/nfp_net.c @@ -109,6 +109,8 @@ static int nfp_net_rss_reta_write(struct rte_eth_dev *dev, uint16_t reta_size); static int nfp_net_rss_hash_write(struct rte_eth_dev *dev, struct rte_eth_rss_conf *rss_conf); +static int nfp_set_mac_addr(struct rte_eth_dev *dev, + struct ether_addr *mac_addr); /* The offset of the queue controller queues in the PCIe Target */ #define NFP_PCIE_QUEUE(_q) (0x80000 + (NFP_QCP_QUEUE_ADDR_SZ * ((_q) & 0xff))) @@ -684,6 +686,37 @@ nfp_net_write_mac(struct nfp_net_hw *hw, uint8_t *mac) hw->ctrl_bar + NFP_NET_CFG_MACADDR + 6); } +int +nfp_set_mac_addr(struct rte_eth_dev *dev, struct ether_addr *mac_addr) +{ + struct nfp_net_hw *hw; + uint32_t update, ctrl; + + hw = NFP_NET_DEV_PRIVATE_TO_HW(dev->data->dev_private); + if ((hw->ctrl & NFP_NET_CFG_CTRL_ENABLE) && + !(hw->cap & NFP_NET_CFG_CTRL_LIVE_ADDR)) { + PMD_INIT_LOG(INFO, "MAC address unable to change when" + " port enabled"); + return -EBUSY; + } + + if ((hw->ctrl & NFP_NET_CFG_CTRL_ENABLE) && + !(hw->cap & NFP_NET_CFG_CTRL_LIVE_ADDR)) + return -EBUSY; + + /* Writing new MAC to the specific port BAR address */ + nfp_net_write_mac(hw, (uint8_t *)mac_addr); + + /* Signal the NIC about the change */ + update = NFP_NET_CFG_UPDATE_MACADDR; + ctrl = hw->ctrl | NFP_NET_CFG_CTRL_LIVE_ADDR; + if (nfp_net_reconfig(hw, ctrl, update) < 0) { + PMD_INIT_LOG(INFO, "MAC address update failed"); + return -EIO; + } + return 0; +} + static int nfp_configure_rx_interrupt(struct rte_eth_dev *dev, struct rte_intr_handle *intr_handle) @@ -2750,6 +2783,7 @@ static const struct eth_dev_ops nfp_net_eth_dev_ops = { .dev_infos_get = nfp_net_infos_get, .dev_supported_ptypes_get = nfp_net_supported_ptypes_get, .mtu_set = nfp_net_dev_mtu_set, + .mac_addr_set = nfp_set_mac_addr, .vlan_offload_set = nfp_net_vlan_offload_set, .reta_update = nfp_net_reta_update, .reta_query = nfp_net_reta_query, @@ -2956,7 +2990,7 @@ nfp_net_init(struct rte_eth_dev *eth_dev) NFD_CFG_MAJOR_VERSION_of(hw->ver), NFD_CFG_MINOR_VERSION_of(hw->ver), hw->max_mtu); - PMD_INIT_LOG(INFO, "CAP: %#x, %s%s%s%s%s%s%s%s%s%s%s%s%s", hw->cap, + PMD_INIT_LOG(INFO, "CAP: %#x, %s%s%s%s%s%s%s%s%s%s%s%s%s%s", hw->cap, hw->cap & NFP_NET_CFG_CTRL_PROMISC ? "PROMISC " : "", hw->cap & NFP_NET_CFG_CTRL_L2BC ? "L2BCFILT " : "", hw->cap & NFP_NET_CFG_CTRL_L2MC ? "L2MCFILT " : "", @@ -2966,6 +3000,7 @@ nfp_net_init(struct rte_eth_dev *eth_dev) hw->cap & NFP_NET_CFG_CTRL_TXVLAN ? "TXVLAN " : "", hw->cap & NFP_NET_CFG_CTRL_SCATTER ? "SCATTER " : "", hw->cap & NFP_NET_CFG_CTRL_GATHER ? "GATHER " : "", + hw->cap & NFP_NET_CFG_CTRL_LIVE_ADDR ? "LIVE_ADDR " : "", hw->cap & NFP_NET_CFG_CTRL_LSO ? "TSO " : "", hw->cap & NFP_NET_CFG_CTRL_LSO2 ? "TSOv2 " : "", hw->cap & NFP_NET_CFG_CTRL_RSS ? "RSS " : "", diff --git a/drivers/net/nfp/nfp_net_ctrl.h b/drivers/net/nfp/nfp_net_ctrl.h index 14eb1766da..21e17da1c0 100644 --- a/drivers/net/nfp/nfp_net_ctrl.h +++ b/drivers/net/nfp/nfp_net_ctrl.h @@ -122,6 +122,7 @@ #define NFP_NET_CFG_CTRL_MSIX_TX_OFF (0x1 << 26) /* Disable MSIX for TX */ #define NFP_NET_CFG_CTRL_LSO2 (0x1 << 28) /* LSO/TSO (version 2) */ #define NFP_NET_CFG_CTRL_RSS2 (0x1 << 29) /* RSS (version 2) */ +#define NFP_NET_CFG_CTRL_LIVE_ADDR (0x1 << 31) /* live MAC addr change */ #define NFP_NET_CFG_UPDATE 0x0004 #define NFP_NET_CFG_UPDATE_GEN (0x1 << 0) /* General update */ #define NFP_NET_CFG_UPDATE_RING (0x1 << 1) /* Ring config change */ @@ -133,6 +134,7 @@ #define NFP_NET_CFG_UPDATE_RESET (0x1 << 7) /* Update due to FLR */ #define NFP_NET_CFG_UPDATE_IRQMOD (0x1 << 8) /* IRQ mod change */ #define NFP_NET_CFG_UPDATE_VXLAN (0x1 << 9) /* VXLAN port change */ +#define NFP_NET_CFG_UPDATE_MACADDR (0x1 << 11) /* MAC address change */ #define NFP_NET_CFG_UPDATE_ERR (0x1 << 31) /* A error occurred */ #define NFP_NET_CFG_TXRS_ENABLE 0x0008 #define NFP_NET_CFG_RXRS_ENABLE 0x0010