diff options
Diffstat (limited to 'drivers/net/ethernet/ti/am65-cpsw-nuss.c')
| -rw-r--r-- | drivers/net/ethernet/ti/am65-cpsw-nuss.c | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/drivers/net/ethernet/ti/am65-cpsw-nuss.c b/drivers/net/ethernet/ti/am65-cpsw-nuss.c index 2bf56733ba94..bb391286d89e 100644 --- a/drivers/net/ethernet/ti/am65-cpsw-nuss.c +++ b/drivers/net/ethernet/ti/am65-cpsw-nuss.c @@ -30,6 +30,7 @@ #include "cpsw_sl.h" #include "am65-cpsw-nuss.h" #include "k3-cppi-desc-pool.h" +#include "am65-cpts.h" #define AM65_CPSW_SS_BASE 0x0 #define AM65_CPSW_SGMII_BASE 0x100 @@ -668,6 +669,18 @@ static void am65_cpsw_nuss_rx_cleanup(void *data, dma_addr_t desc_dma) dev_kfree_skb_any(skb); } +static void am65_cpsw_nuss_rx_ts(struct sk_buff *skb, u32 *psdata) +{ + struct skb_shared_hwtstamps *ssh; + u64 ns; + + ns = ((u64)psdata[1] << 32) | psdata[0]; + + ssh = skb_hwtstamps(skb); + memset(ssh, 0, sizeof(*ssh)); + ssh->hwtstamp = ns_to_ktime(ns); +} + /* RX psdata[2] word format - checksum information */ #define AM65_CPSW_RX_PSD_CSUM_ADD GENMASK(15, 0) #define AM65_CPSW_RX_PSD_CSUM_ERR BIT(16) @@ -745,6 +758,9 @@ static int am65_cpsw_nuss_rx_packets(struct am65_cpsw_common *common, skb->dev = ndev; psdata = cppi5_hdesc_get_psdata(desc_rx); + /* add RX timestamp */ + if (port->rx_ts_enabled) + am65_cpsw_nuss_rx_ts(skb, psdata); csum_info = psdata[2]; dev_dbg(dev, "%s rx csum_info:%#x\n", __func__, csum_info); @@ -904,6 +920,8 @@ static int am65_cpsw_nuss_tx_compl_packets(struct am65_cpsw_common *common, ndev = skb->dev; + am65_cpts_tx_timestamp(common->cpts, skb); + ndev_priv = netdev_priv(ndev); stats = this_cpu_ptr(ndev_priv->stats); u64_stats_update_begin(&stats->syncp); @@ -995,6 +1013,10 @@ static netdev_tx_t am65_cpsw_nuss_ndo_slave_xmit(struct sk_buff *skb, /* padding enabled in hw */ pkt_len = skb_headlen(skb); + /* SKB TX timestamp */ + if (port->tx_ts_enabled) + am65_cpts_prep_tx_timestamp(common->cpts, skb); + q_idx = skb_get_queue_mapping(skb); dev_dbg(dev, "%s skb_queue:%d\n", __func__, q_idx); @@ -1158,6 +1180,111 @@ static int am65_cpsw_nuss_ndo_slave_set_mac_address(struct net_device *ndev, return 0; } +static int am65_cpsw_nuss_hwtstamp_set(struct net_device *ndev, + struct ifreq *ifr) +{ + struct am65_cpsw_common *common = am65_ndev_to_common(ndev); + struct am65_cpsw_port *port = am65_ndev_to_port(ndev); + u32 ts_ctrl, seq_id, ts_ctrl_ltype2, ts_vlan_ltype; + struct hwtstamp_config cfg; + + if (!IS_ENABLED(CONFIG_TI_K3_AM65_CPTS)) + return -EOPNOTSUPP; + + if (copy_from_user(&cfg, ifr->ifr_data, sizeof(cfg))) + return -EFAULT; + + /* TX HW timestamp */ + switch (cfg.tx_type) { + case HWTSTAMP_TX_OFF: + case HWTSTAMP_TX_ON: + break; + default: + return -ERANGE; + } + + switch (cfg.rx_filter) { + case HWTSTAMP_FILTER_NONE: + port->rx_ts_enabled = false; + break; + case HWTSTAMP_FILTER_ALL: + case HWTSTAMP_FILTER_SOME: + case HWTSTAMP_FILTER_PTP_V1_L4_EVENT: + case HWTSTAMP_FILTER_PTP_V1_L4_SYNC: + case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ: + case HWTSTAMP_FILTER_PTP_V2_L4_EVENT: + case HWTSTAMP_FILTER_PTP_V2_L4_SYNC: + case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ: + case HWTSTAMP_FILTER_PTP_V2_L2_EVENT: + case HWTSTAMP_FILTER_PTP_V2_L2_SYNC: + case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ: + case HWTSTAMP_FILTER_PTP_V2_EVENT: + case HWTSTAMP_FILTER_PTP_V2_SYNC: + case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ: + case HWTSTAMP_FILTER_NTP_ALL: + port->rx_ts_enabled = true; + cfg.rx_filter = HWTSTAMP_FILTER_ALL; + break; + default: + return -ERANGE; + } + + port->tx_ts_enabled = (cfg.tx_type == HWTSTAMP_TX_ON); + + /* cfg TX timestamp */ + seq_id = (AM65_CPSW_TS_SEQ_ID_OFFSET << + AM65_CPSW_PN_TS_SEQ_ID_OFFSET_SHIFT) | ETH_P_1588; + + ts_vlan_ltype = ETH_P_8021Q; + + ts_ctrl_ltype2 = ETH_P_1588 | + AM65_CPSW_PN_TS_CTL_LTYPE2_TS_107 | + AM65_CPSW_PN_TS_CTL_LTYPE2_TS_129 | + AM65_CPSW_PN_TS_CTL_LTYPE2_TS_130 | + AM65_CPSW_PN_TS_CTL_LTYPE2_TS_131 | + AM65_CPSW_PN_TS_CTL_LTYPE2_TS_132 | + AM65_CPSW_PN_TS_CTL_LTYPE2_TS_319 | + AM65_CPSW_PN_TS_CTL_LTYPE2_TS_320 | + AM65_CPSW_PN_TS_CTL_LTYPE2_TS_TTL_NONZERO; + + ts_ctrl = AM65_CPSW_TS_EVENT_MSG_TYPE_BITS << + AM65_CPSW_PN_TS_CTL_MSG_TYPE_EN_SHIFT; + + if (port->tx_ts_enabled) + ts_ctrl |= AM65_CPSW_TS_TX_ANX_ALL_EN | + AM65_CPSW_PN_TS_CTL_TX_VLAN_LT1_EN; + + writel(seq_id, port->port_base + AM65_CPSW_PORTN_REG_TS_SEQ_LTYPE_REG); + writel(ts_vlan_ltype, port->port_base + + AM65_CPSW_PORTN_REG_TS_VLAN_LTYPE_REG); + writel(ts_ctrl_ltype2, port->port_base + + AM65_CPSW_PORTN_REG_TS_CTL_LTYPE2); + writel(ts_ctrl, port->port_base + AM65_CPSW_PORTN_REG_TS_CTL); + + /* en/dis RX timestamp */ + am65_cpts_rx_enable(common->cpts, port->rx_ts_enabled); + + return copy_to_user(ifr->ifr_data, &cfg, sizeof(cfg)) ? -EFAULT : 0; +} + +static int am65_cpsw_nuss_hwtstamp_get(struct net_device *ndev, + struct ifreq *ifr) +{ + struct am65_cpsw_port *port = am65_ndev_to_port(ndev); + struct hwtstamp_config cfg; + + if (!IS_ENABLED(CONFIG_TI_K3_AM65_CPTS)) + return -EOPNOTSUPP; + + cfg.flags = 0; + cfg.tx_type = port->tx_ts_enabled ? + HWTSTAMP_TX_ON : HWTSTAMP_TX_OFF; + cfg.rx_filter = port->rx_ts_enabled ? + HWTSTAMP_FILTER_ALL : HWTSTAMP_FILTER_NONE; + + return copy_to_user(ifr->ifr_data, &cfg, sizeof(cfg)) ? -EFAULT : 0; +} + static int am65_cpsw_nuss_ndo_slave_ioctl(struct net_device *ndev, struct ifreq *req, int cmd) { @@ -1166,6 +1293,13 @@ static int am65_cpsw_nuss_ndo_slave_ioctl(struct net_device *ndev, if (!netif_running(ndev)) return -EINVAL; + switch (cmd) { + case SIOCSHWTSTAMP: + return am65_cpsw_nuss_hwtstamp_set(ndev, req); + case SIOCGHWTSTAMP: + return am65_cpsw_nuss_hwtstamp_get(ndev, req); + } + if (!port->slave.phy) return -EOPNOTSUPP; @@ -1531,6 +1665,40 @@ static int am65_cpsw_am654_get_efuse_macid(struct device_node *of_node, return 0; } +static int am65_cpsw_init_cpts(struct am65_cpsw_common *common) +{ + struct device *dev = common->dev; + struct device_node *node; + struct am65_cpts *cpts; + void __iomem *reg_base; + + if (!IS_ENABLED(CONFIG_TI_K3_AM65_CPTS)) + return 0; + + node = of_get_child_by_name(dev->of_node, "cpts"); + if (!node) { + dev_err(dev, "%s cpts not found\n", __func__); + return -ENOENT; + } + + reg_base = common->cpsw_base + AM65_CPSW_NU_CPTS_BASE; + cpts = am65_cpts_create(dev, reg_base, node); + if (IS_ERR(cpts)) { + int ret = PTR_ERR(cpts); + + if (ret == -EOPNOTSUPP) { + dev_info(dev, "cpts disabled\n"); + return 0; + } + + dev_err(dev, "cpts create err %d\n", ret); + return ret; + } + common->cpts = cpts; + + return 0; +} + static int am65_cpsw_nuss_init_slave_ports(struct am65_cpsw_common *common) { struct device_node *node, *port_np; @@ -1899,6 +2067,10 @@ static int am65_cpsw_nuss_probe(struct platform_device *pdev) goto err_of_clear; } + ret = am65_cpsw_init_cpts(common); + if (ret) + goto err_of_clear; + /* init ports */ for (i = 0; i < common->port_num; i++) am65_cpsw_nuss_slave_disable_unused(&common->ports[i]); |