193a76530SGrygorii Strashko // SPDX-License-Identifier: GPL-2.0 293a76530SGrygorii Strashko /* Texas Instruments K3 AM65 Ethernet Switch SubSystem Driver 393a76530SGrygorii Strashko * 493a76530SGrygorii Strashko * Copyright (C) 2020 Texas Instruments Incorporated - http://www.ti.com/ 593a76530SGrygorii Strashko * 693a76530SGrygorii Strashko */ 793a76530SGrygorii Strashko 893a76530SGrygorii Strashko #include <linux/etherdevice.h> 993a76530SGrygorii Strashko #include <linux/if_vlan.h> 1093a76530SGrygorii Strashko #include <linux/interrupt.h> 1193a76530SGrygorii Strashko #include <linux/kernel.h> 1293a76530SGrygorii Strashko #include <linux/kmemleak.h> 1393a76530SGrygorii Strashko #include <linux/module.h> 1493a76530SGrygorii Strashko #include <linux/netdevice.h> 1593a76530SGrygorii Strashko #include <linux/net_tstamp.h> 1693a76530SGrygorii Strashko #include <linux/of.h> 1793a76530SGrygorii Strashko #include <linux/of_mdio.h> 1893a76530SGrygorii Strashko #include <linux/of_net.h> 1993a76530SGrygorii Strashko #include <linux/of_device.h> 2093a76530SGrygorii Strashko #include <linux/phy.h> 2193a76530SGrygorii Strashko #include <linux/phy/phy.h> 2293a76530SGrygorii Strashko #include <linux/platform_device.h> 2393a76530SGrygorii Strashko #include <linux/pm_runtime.h> 2493a76530SGrygorii Strashko #include <linux/regmap.h> 2593a76530SGrygorii Strashko #include <linux/mfd/syscon.h> 2638389aa6SGrygorii Strashko #include <linux/sys_soc.h> 2793a76530SGrygorii Strashko #include <linux/dma/ti-cppi5.h> 2893a76530SGrygorii Strashko #include <linux/dma/k3-udma-glue.h> 2993a76530SGrygorii Strashko 3093a76530SGrygorii Strashko #include "cpsw_ale.h" 3193a76530SGrygorii Strashko #include "cpsw_sl.h" 3293a76530SGrygorii Strashko #include "am65-cpsw-nuss.h" 3393a76530SGrygorii Strashko #include "k3-cppi-desc-pool.h" 34b1f66a5bSGrygorii Strashko #include "am65-cpts.h" 3593a76530SGrygorii Strashko 3693a76530SGrygorii Strashko #define AM65_CPSW_SS_BASE 0x0 3793a76530SGrygorii Strashko #define AM65_CPSW_SGMII_BASE 0x100 3893a76530SGrygorii Strashko #define AM65_CPSW_XGMII_BASE 0x2100 3993a76530SGrygorii Strashko #define AM65_CPSW_CPSW_NU_BASE 0x20000 4093a76530SGrygorii Strashko #define AM65_CPSW_NU_PORTS_BASE 0x1000 418127224cSIvan Khoronzhuk #define AM65_CPSW_NU_FRAM_BASE 0x12000 4293a76530SGrygorii Strashko #define AM65_CPSW_NU_STATS_BASE 0x1a000 4393a76530SGrygorii Strashko #define AM65_CPSW_NU_ALE_BASE 0x1e000 4493a76530SGrygorii Strashko #define AM65_CPSW_NU_CPTS_BASE 0x1d000 4593a76530SGrygorii Strashko 4693a76530SGrygorii Strashko #define AM65_CPSW_NU_PORTS_OFFSET 0x1000 4793a76530SGrygorii Strashko #define AM65_CPSW_NU_STATS_PORT_OFFSET 0x200 488127224cSIvan Khoronzhuk #define AM65_CPSW_NU_FRAM_PORT_OFFSET 0x200 4993a76530SGrygorii Strashko 5093a76530SGrygorii Strashko #define AM65_CPSW_MAX_PORTS 8 5193a76530SGrygorii Strashko 5293a76530SGrygorii Strashko #define AM65_CPSW_MIN_PACKET_SIZE VLAN_ETH_ZLEN 5393a76530SGrygorii Strashko #define AM65_CPSW_MAX_PACKET_SIZE (VLAN_ETH_FRAME_LEN + ETH_FCS_LEN) 5493a76530SGrygorii Strashko 5593a76530SGrygorii Strashko #define AM65_CPSW_REG_CTL 0x004 5693a76530SGrygorii Strashko #define AM65_CPSW_REG_STAT_PORT_EN 0x014 5793a76530SGrygorii Strashko #define AM65_CPSW_REG_PTYPE 0x018 5893a76530SGrygorii Strashko 5993a76530SGrygorii Strashko #define AM65_CPSW_P0_REG_CTL 0x004 6093a76530SGrygorii Strashko #define AM65_CPSW_PORT0_REG_FLOW_ID_OFFSET 0x008 6193a76530SGrygorii Strashko 6293a76530SGrygorii Strashko #define AM65_CPSW_PORT_REG_PRI_CTL 0x01c 6393a76530SGrygorii Strashko #define AM65_CPSW_PORT_REG_RX_PRI_MAP 0x020 6493a76530SGrygorii Strashko #define AM65_CPSW_PORT_REG_RX_MAXLEN 0x024 6593a76530SGrygorii Strashko 6693a76530SGrygorii Strashko #define AM65_CPSW_PORTN_REG_SA_L 0x308 6793a76530SGrygorii Strashko #define AM65_CPSW_PORTN_REG_SA_H 0x30c 6893a76530SGrygorii Strashko #define AM65_CPSW_PORTN_REG_TS_CTL 0x310 6993a76530SGrygorii Strashko #define AM65_CPSW_PORTN_REG_TS_SEQ_LTYPE_REG 0x314 7093a76530SGrygorii Strashko #define AM65_CPSW_PORTN_REG_TS_VLAN_LTYPE_REG 0x318 7193a76530SGrygorii Strashko #define AM65_CPSW_PORTN_REG_TS_CTL_LTYPE2 0x31C 7293a76530SGrygorii Strashko 7393a76530SGrygorii Strashko #define AM65_CPSW_CTL_VLAN_AWARE BIT(1) 7493a76530SGrygorii Strashko #define AM65_CPSW_CTL_P0_ENABLE BIT(2) 7593a76530SGrygorii Strashko #define AM65_CPSW_CTL_P0_TX_CRC_REMOVE BIT(13) 7693a76530SGrygorii Strashko #define AM65_CPSW_CTL_P0_RX_PAD BIT(14) 7793a76530SGrygorii Strashko 7893a76530SGrygorii Strashko /* AM65_CPSW_P0_REG_CTL */ 7993a76530SGrygorii Strashko #define AM65_CPSW_P0_REG_CTL_RX_CHECKSUM_EN BIT(0) 8093a76530SGrygorii Strashko 8193a76530SGrygorii Strashko /* AM65_CPSW_PORT_REG_PRI_CTL */ 8293a76530SGrygorii Strashko #define AM65_CPSW_PORT_REG_PRI_CTL_RX_PTYPE_RROBIN BIT(8) 8393a76530SGrygorii Strashko 8493a76530SGrygorii Strashko /* AM65_CPSW_PN_TS_CTL register fields */ 8593a76530SGrygorii Strashko #define AM65_CPSW_PN_TS_CTL_TX_ANX_F_EN BIT(4) 8693a76530SGrygorii Strashko #define AM65_CPSW_PN_TS_CTL_TX_VLAN_LT1_EN BIT(5) 8793a76530SGrygorii Strashko #define AM65_CPSW_PN_TS_CTL_TX_VLAN_LT2_EN BIT(6) 8893a76530SGrygorii Strashko #define AM65_CPSW_PN_TS_CTL_TX_ANX_D_EN BIT(7) 8993a76530SGrygorii Strashko #define AM65_CPSW_PN_TS_CTL_TX_ANX_E_EN BIT(10) 9093a76530SGrygorii Strashko #define AM65_CPSW_PN_TS_CTL_TX_HOST_TS_EN BIT(11) 9193a76530SGrygorii Strashko #define AM65_CPSW_PN_TS_CTL_MSG_TYPE_EN_SHIFT 16 9293a76530SGrygorii Strashko 9393a76530SGrygorii Strashko /* AM65_CPSW_PORTN_REG_TS_SEQ_LTYPE_REG register fields */ 9493a76530SGrygorii Strashko #define AM65_CPSW_PN_TS_SEQ_ID_OFFSET_SHIFT 16 9593a76530SGrygorii Strashko 9693a76530SGrygorii Strashko /* AM65_CPSW_PORTN_REG_TS_CTL_LTYPE2 */ 9793a76530SGrygorii Strashko #define AM65_CPSW_PN_TS_CTL_LTYPE2_TS_107 BIT(16) 9893a76530SGrygorii Strashko #define AM65_CPSW_PN_TS_CTL_LTYPE2_TS_129 BIT(17) 9993a76530SGrygorii Strashko #define AM65_CPSW_PN_TS_CTL_LTYPE2_TS_130 BIT(18) 10093a76530SGrygorii Strashko #define AM65_CPSW_PN_TS_CTL_LTYPE2_TS_131 BIT(19) 10193a76530SGrygorii Strashko #define AM65_CPSW_PN_TS_CTL_LTYPE2_TS_132 BIT(20) 10293a76530SGrygorii Strashko #define AM65_CPSW_PN_TS_CTL_LTYPE2_TS_319 BIT(21) 10393a76530SGrygorii Strashko #define AM65_CPSW_PN_TS_CTL_LTYPE2_TS_320 BIT(22) 10493a76530SGrygorii Strashko #define AM65_CPSW_PN_TS_CTL_LTYPE2_TS_TTL_NONZERO BIT(23) 10593a76530SGrygorii Strashko 10693a76530SGrygorii Strashko /* The PTP event messages - Sync, Delay_Req, Pdelay_Req, and Pdelay_Resp. */ 10793a76530SGrygorii Strashko #define AM65_CPSW_TS_EVENT_MSG_TYPE_BITS (BIT(0) | BIT(1) | BIT(2) | BIT(3)) 10893a76530SGrygorii Strashko 10993a76530SGrygorii Strashko #define AM65_CPSW_TS_SEQ_ID_OFFSET (0x1e) 11093a76530SGrygorii Strashko 11193a76530SGrygorii Strashko #define AM65_CPSW_TS_TX_ANX_ALL_EN \ 11293a76530SGrygorii Strashko (AM65_CPSW_PN_TS_CTL_TX_ANX_D_EN | \ 11393a76530SGrygorii Strashko AM65_CPSW_PN_TS_CTL_TX_ANX_E_EN | \ 11493a76530SGrygorii Strashko AM65_CPSW_PN_TS_CTL_TX_ANX_F_EN) 11593a76530SGrygorii Strashko 11693a76530SGrygorii Strashko #define AM65_CPSW_ALE_AGEOUT_DEFAULT 30 11793a76530SGrygorii Strashko /* Number of TX/RX descriptors */ 11893a76530SGrygorii Strashko #define AM65_CPSW_MAX_TX_DESC 500 11993a76530SGrygorii Strashko #define AM65_CPSW_MAX_RX_DESC 500 12093a76530SGrygorii Strashko 12193a76530SGrygorii Strashko #define AM65_CPSW_NAV_PS_DATA_SIZE 16 12293a76530SGrygorii Strashko #define AM65_CPSW_NAV_SW_DATA_SIZE 16 12393a76530SGrygorii Strashko 12493a76530SGrygorii Strashko #define AM65_CPSW_DEBUG (NETIF_MSG_HW | NETIF_MSG_DRV | NETIF_MSG_LINK | \ 12593a76530SGrygorii Strashko NETIF_MSG_IFUP | NETIF_MSG_PROBE | NETIF_MSG_IFDOWN | \ 12693a76530SGrygorii Strashko NETIF_MSG_RX_ERR | NETIF_MSG_TX_ERR) 12793a76530SGrygorii Strashko 12893a76530SGrygorii Strashko static void am65_cpsw_port_set_sl_mac(struct am65_cpsw_port *slave, 12993a76530SGrygorii Strashko const u8 *dev_addr) 13093a76530SGrygorii Strashko { 13193a76530SGrygorii Strashko u32 mac_hi = (dev_addr[0] << 0) | (dev_addr[1] << 8) | 13293a76530SGrygorii Strashko (dev_addr[2] << 16) | (dev_addr[3] << 24); 13393a76530SGrygorii Strashko u32 mac_lo = (dev_addr[4] << 0) | (dev_addr[5] << 8); 13493a76530SGrygorii Strashko 13593a76530SGrygorii Strashko writel(mac_hi, slave->port_base + AM65_CPSW_PORTN_REG_SA_H); 13693a76530SGrygorii Strashko writel(mac_lo, slave->port_base + AM65_CPSW_PORTN_REG_SA_L); 13793a76530SGrygorii Strashko } 13893a76530SGrygorii Strashko 13993a76530SGrygorii Strashko static void am65_cpsw_sl_ctl_reset(struct am65_cpsw_port *port) 14093a76530SGrygorii Strashko { 14193a76530SGrygorii Strashko cpsw_sl_reset(port->slave.mac_sl, 100); 14293a76530SGrygorii Strashko /* Max length register has to be restored after MAC SL reset */ 14393a76530SGrygorii Strashko writel(AM65_CPSW_MAX_PACKET_SIZE, 14493a76530SGrygorii Strashko port->port_base + AM65_CPSW_PORT_REG_RX_MAXLEN); 14593a76530SGrygorii Strashko } 14693a76530SGrygorii Strashko 14793a76530SGrygorii Strashko static void am65_cpsw_nuss_get_ver(struct am65_cpsw_common *common) 14893a76530SGrygorii Strashko { 14993a76530SGrygorii Strashko common->nuss_ver = readl(common->ss_base); 15093a76530SGrygorii Strashko common->cpsw_ver = readl(common->cpsw_base); 15193a76530SGrygorii Strashko dev_info(common->dev, 15238389aa6SGrygorii Strashko "initializing am65 cpsw nuss version 0x%08X, cpsw version 0x%08X Ports: %u quirks:%08x\n", 15393a76530SGrygorii Strashko common->nuss_ver, 15493a76530SGrygorii Strashko common->cpsw_ver, 15538389aa6SGrygorii Strashko common->port_num + 1, 15638389aa6SGrygorii Strashko common->pdata.quirks); 15793a76530SGrygorii Strashko } 15893a76530SGrygorii Strashko 15993a76530SGrygorii Strashko void am65_cpsw_nuss_adjust_link(struct net_device *ndev) 16093a76530SGrygorii Strashko { 16193a76530SGrygorii Strashko struct am65_cpsw_common *common = am65_ndev_to_common(ndev); 16293a76530SGrygorii Strashko struct am65_cpsw_port *port = am65_ndev_to_port(ndev); 16393a76530SGrygorii Strashko struct phy_device *phy = port->slave.phy; 16493a76530SGrygorii Strashko u32 mac_control = 0; 16593a76530SGrygorii Strashko 16693a76530SGrygorii Strashko if (!phy) 16793a76530SGrygorii Strashko return; 16893a76530SGrygorii Strashko 16993a76530SGrygorii Strashko if (phy->link) { 17093a76530SGrygorii Strashko mac_control = CPSW_SL_CTL_GMII_EN; 17193a76530SGrygorii Strashko 17293a76530SGrygorii Strashko if (phy->speed == 1000) 17393a76530SGrygorii Strashko mac_control |= CPSW_SL_CTL_GIG; 17493a76530SGrygorii Strashko if (phy->speed == 10 && phy_interface_is_rgmii(phy)) 17593a76530SGrygorii Strashko /* Can be used with in band mode only */ 17693a76530SGrygorii Strashko mac_control |= CPSW_SL_CTL_EXT_EN; 17793a76530SGrygorii Strashko if (phy->duplex) 17893a76530SGrygorii Strashko mac_control |= CPSW_SL_CTL_FULLDUPLEX; 17993a76530SGrygorii Strashko 18093a76530SGrygorii Strashko /* RGMII speed is 100M if !CPSW_SL_CTL_GIG*/ 18193a76530SGrygorii Strashko 18293a76530SGrygorii Strashko /* rx_pause/tx_pause */ 18393a76530SGrygorii Strashko if (port->slave.rx_pause) 18493a76530SGrygorii Strashko mac_control |= CPSW_SL_CTL_RX_FLOW_EN; 18593a76530SGrygorii Strashko 18693a76530SGrygorii Strashko if (port->slave.tx_pause) 18793a76530SGrygorii Strashko mac_control |= CPSW_SL_CTL_TX_FLOW_EN; 18893a76530SGrygorii Strashko 18993a76530SGrygorii Strashko cpsw_sl_ctl_set(port->slave.mac_sl, mac_control); 19093a76530SGrygorii Strashko 19193a76530SGrygorii Strashko /* enable forwarding */ 19293a76530SGrygorii Strashko cpsw_ale_control_set(common->ale, port->port_id, 19393a76530SGrygorii Strashko ALE_PORT_STATE, ALE_PORT_STATE_FORWARD); 19493a76530SGrygorii Strashko 1958127224cSIvan Khoronzhuk am65_cpsw_qos_link_up(ndev, phy->speed); 19693a76530SGrygorii Strashko netif_tx_wake_all_queues(ndev); 19793a76530SGrygorii Strashko } else { 19893a76530SGrygorii Strashko int tmo; 1998127224cSIvan Khoronzhuk 20093a76530SGrygorii Strashko /* disable forwarding */ 20193a76530SGrygorii Strashko cpsw_ale_control_set(common->ale, port->port_id, 20293a76530SGrygorii Strashko ALE_PORT_STATE, ALE_PORT_STATE_DISABLE); 20393a76530SGrygorii Strashko 20493a76530SGrygorii Strashko cpsw_sl_ctl_set(port->slave.mac_sl, CPSW_SL_CTL_CMD_IDLE); 20593a76530SGrygorii Strashko 20693a76530SGrygorii Strashko tmo = cpsw_sl_wait_for_idle(port->slave.mac_sl, 100); 20793a76530SGrygorii Strashko dev_dbg(common->dev, "donw msc_sl %08x tmo %d\n", 20893a76530SGrygorii Strashko cpsw_sl_reg_read(port->slave.mac_sl, CPSW_SL_MACSTATUS), 20993a76530SGrygorii Strashko tmo); 21093a76530SGrygorii Strashko 21193a76530SGrygorii Strashko cpsw_sl_ctl_reset(port->slave.mac_sl); 21293a76530SGrygorii Strashko 2138127224cSIvan Khoronzhuk am65_cpsw_qos_link_down(ndev); 21493a76530SGrygorii Strashko netif_tx_stop_all_queues(ndev); 21593a76530SGrygorii Strashko } 21693a76530SGrygorii Strashko 21793a76530SGrygorii Strashko phy_print_status(phy); 21893a76530SGrygorii Strashko } 21993a76530SGrygorii Strashko 22093a76530SGrygorii Strashko static int am65_cpsw_nuss_ndo_slave_add_vid(struct net_device *ndev, 22193a76530SGrygorii Strashko __be16 proto, u16 vid) 22293a76530SGrygorii Strashko { 22393a76530SGrygorii Strashko struct am65_cpsw_common *common = am65_ndev_to_common(ndev); 22493a76530SGrygorii Strashko struct am65_cpsw_port *port = am65_ndev_to_port(ndev); 22593a76530SGrygorii Strashko u32 port_mask, unreg_mcast = 0; 22693a76530SGrygorii Strashko int ret; 22793a76530SGrygorii Strashko 2287bcffde0SGrygorii Strashko if (!netif_running(ndev) || !vid) 2297bcffde0SGrygorii Strashko return 0; 2307bcffde0SGrygorii Strashko 23193a76530SGrygorii Strashko ret = pm_runtime_get_sync(common->dev); 23293a76530SGrygorii Strashko if (ret < 0) { 23393a76530SGrygorii Strashko pm_runtime_put_noidle(common->dev); 23493a76530SGrygorii Strashko return ret; 23593a76530SGrygorii Strashko } 23693a76530SGrygorii Strashko 23793a76530SGrygorii Strashko port_mask = BIT(port->port_id) | ALE_PORT_HOST; 23893a76530SGrygorii Strashko if (!vid) 23993a76530SGrygorii Strashko unreg_mcast = port_mask; 24093a76530SGrygorii Strashko dev_info(common->dev, "Adding vlan %d to vlan filter\n", vid); 24193a76530SGrygorii Strashko ret = cpsw_ale_add_vlan(common->ale, vid, port_mask, 24293a76530SGrygorii Strashko unreg_mcast, port_mask, 0); 24393a76530SGrygorii Strashko 24493a76530SGrygorii Strashko pm_runtime_put(common->dev); 24593a76530SGrygorii Strashko return ret; 24693a76530SGrygorii Strashko } 24793a76530SGrygorii Strashko 24893a76530SGrygorii Strashko static int am65_cpsw_nuss_ndo_slave_kill_vid(struct net_device *ndev, 24993a76530SGrygorii Strashko __be16 proto, u16 vid) 25093a76530SGrygorii Strashko { 25193a76530SGrygorii Strashko struct am65_cpsw_common *common = am65_ndev_to_common(ndev); 25293a76530SGrygorii Strashko int ret; 25393a76530SGrygorii Strashko 2547bcffde0SGrygorii Strashko if (!netif_running(ndev) || !vid) 2557bcffde0SGrygorii Strashko return 0; 2567bcffde0SGrygorii Strashko 25793a76530SGrygorii Strashko ret = pm_runtime_get_sync(common->dev); 25893a76530SGrygorii Strashko if (ret < 0) { 25993a76530SGrygorii Strashko pm_runtime_put_noidle(common->dev); 26093a76530SGrygorii Strashko return ret; 26193a76530SGrygorii Strashko } 26293a76530SGrygorii Strashko 26393a76530SGrygorii Strashko dev_info(common->dev, "Removing vlan %d from vlan filter\n", vid); 26493a76530SGrygorii Strashko ret = cpsw_ale_del_vlan(common->ale, vid, 0); 26593a76530SGrygorii Strashko 26693a76530SGrygorii Strashko pm_runtime_put(common->dev); 26793a76530SGrygorii Strashko return ret; 26893a76530SGrygorii Strashko } 26993a76530SGrygorii Strashko 27093a76530SGrygorii Strashko static void am65_cpsw_slave_set_promisc_2g(struct am65_cpsw_port *port, 27193a76530SGrygorii Strashko bool promisc) 27293a76530SGrygorii Strashko { 27393a76530SGrygorii Strashko struct am65_cpsw_common *common = port->common; 27493a76530SGrygorii Strashko 27593a76530SGrygorii Strashko if (promisc) { 27693a76530SGrygorii Strashko /* Enable promiscuous mode */ 27793a76530SGrygorii Strashko cpsw_ale_control_set(common->ale, port->port_id, 27893a76530SGrygorii Strashko ALE_PORT_MACONLY_CAF, 1); 27993a76530SGrygorii Strashko dev_dbg(common->dev, "promisc enabled\n"); 28093a76530SGrygorii Strashko } else { 28193a76530SGrygorii Strashko /* Disable promiscuous mode */ 28293a76530SGrygorii Strashko cpsw_ale_control_set(common->ale, port->port_id, 28393a76530SGrygorii Strashko ALE_PORT_MACONLY_CAF, 0); 28493a76530SGrygorii Strashko dev_dbg(common->dev, "promisc disabled\n"); 28593a76530SGrygorii Strashko } 28693a76530SGrygorii Strashko } 28793a76530SGrygorii Strashko 28893a76530SGrygorii Strashko static void am65_cpsw_nuss_ndo_slave_set_rx_mode(struct net_device *ndev) 28993a76530SGrygorii Strashko { 29093a76530SGrygorii Strashko struct am65_cpsw_common *common = am65_ndev_to_common(ndev); 29193a76530SGrygorii Strashko struct am65_cpsw_port *port = am65_ndev_to_port(ndev); 29293a76530SGrygorii Strashko u32 port_mask; 29393a76530SGrygorii Strashko bool promisc; 29493a76530SGrygorii Strashko 29593a76530SGrygorii Strashko promisc = !!(ndev->flags & IFF_PROMISC); 29693a76530SGrygorii Strashko am65_cpsw_slave_set_promisc_2g(port, promisc); 29793a76530SGrygorii Strashko 29893a76530SGrygorii Strashko if (promisc) 29993a76530SGrygorii Strashko return; 30093a76530SGrygorii Strashko 30193a76530SGrygorii Strashko /* Restore allmulti on vlans if necessary */ 30293a76530SGrygorii Strashko cpsw_ale_set_allmulti(common->ale, 30393a76530SGrygorii Strashko ndev->flags & IFF_ALLMULTI, port->port_id); 30493a76530SGrygorii Strashko 30593a76530SGrygorii Strashko port_mask = ALE_PORT_HOST; 30693a76530SGrygorii Strashko /* Clear all mcast from ALE */ 30793a76530SGrygorii Strashko cpsw_ale_flush_multicast(common->ale, port_mask, -1); 30893a76530SGrygorii Strashko 30993a76530SGrygorii Strashko if (!netdev_mc_empty(ndev)) { 31093a76530SGrygorii Strashko struct netdev_hw_addr *ha; 31193a76530SGrygorii Strashko 31293a76530SGrygorii Strashko /* program multicast address list into ALE register */ 31393a76530SGrygorii Strashko netdev_for_each_mc_addr(ha, ndev) { 31493a76530SGrygorii Strashko cpsw_ale_add_mcast(common->ale, ha->addr, 31593a76530SGrygorii Strashko port_mask, 0, 0, 0); 31693a76530SGrygorii Strashko } 31793a76530SGrygorii Strashko } 31893a76530SGrygorii Strashko } 31993a76530SGrygorii Strashko 32093a76530SGrygorii Strashko static void am65_cpsw_nuss_ndo_host_tx_timeout(struct net_device *ndev, 32193a76530SGrygorii Strashko unsigned int txqueue) 32293a76530SGrygorii Strashko { 32393a76530SGrygorii Strashko struct am65_cpsw_common *common = am65_ndev_to_common(ndev); 32493a76530SGrygorii Strashko struct am65_cpsw_tx_chn *tx_chn; 32593a76530SGrygorii Strashko struct netdev_queue *netif_txq; 32693a76530SGrygorii Strashko unsigned long trans_start; 32793a76530SGrygorii Strashko 32893a76530SGrygorii Strashko netif_txq = netdev_get_tx_queue(ndev, txqueue); 32993a76530SGrygorii Strashko tx_chn = &common->tx_chns[txqueue]; 33093a76530SGrygorii Strashko trans_start = netif_txq->trans_start; 33193a76530SGrygorii Strashko 33293a76530SGrygorii Strashko netdev_err(ndev, "txq:%d DRV_XOFF:%d tmo:%u dql_avail:%d free_desc:%zu\n", 33393a76530SGrygorii Strashko txqueue, 33493a76530SGrygorii Strashko netif_tx_queue_stopped(netif_txq), 33593a76530SGrygorii Strashko jiffies_to_msecs(jiffies - trans_start), 33693a76530SGrygorii Strashko dql_avail(&netif_txq->dql), 33793a76530SGrygorii Strashko k3_cppi_desc_pool_avail(tx_chn->desc_pool)); 33893a76530SGrygorii Strashko 33993a76530SGrygorii Strashko if (netif_tx_queue_stopped(netif_txq)) { 34093a76530SGrygorii Strashko /* try recover if stopped by us */ 34193a76530SGrygorii Strashko txq_trans_update(netif_txq); 34293a76530SGrygorii Strashko netif_tx_wake_queue(netif_txq); 34393a76530SGrygorii Strashko } 34493a76530SGrygorii Strashko } 34593a76530SGrygorii Strashko 34693a76530SGrygorii Strashko static int am65_cpsw_nuss_rx_push(struct am65_cpsw_common *common, 34793a76530SGrygorii Strashko struct sk_buff *skb) 34893a76530SGrygorii Strashko { 34993a76530SGrygorii Strashko struct am65_cpsw_rx_chn *rx_chn = &common->rx_chns; 35093a76530SGrygorii Strashko struct cppi5_host_desc_t *desc_rx; 35193a76530SGrygorii Strashko struct device *dev = common->dev; 35293a76530SGrygorii Strashko u32 pkt_len = skb_tailroom(skb); 35393a76530SGrygorii Strashko dma_addr_t desc_dma; 35493a76530SGrygorii Strashko dma_addr_t buf_dma; 35593a76530SGrygorii Strashko void *swdata; 35693a76530SGrygorii Strashko 35793a76530SGrygorii Strashko desc_rx = k3_cppi_desc_pool_alloc(rx_chn->desc_pool); 35893a76530SGrygorii Strashko if (!desc_rx) { 35993a76530SGrygorii Strashko dev_err(dev, "Failed to allocate RXFDQ descriptor\n"); 36093a76530SGrygorii Strashko return -ENOMEM; 36193a76530SGrygorii Strashko } 36293a76530SGrygorii Strashko desc_dma = k3_cppi_desc_pool_virt2dma(rx_chn->desc_pool, desc_rx); 36393a76530SGrygorii Strashko 36493a76530SGrygorii Strashko buf_dma = dma_map_single(dev, skb->data, pkt_len, DMA_FROM_DEVICE); 36593a76530SGrygorii Strashko if (unlikely(dma_mapping_error(dev, buf_dma))) { 36693a76530SGrygorii Strashko k3_cppi_desc_pool_free(rx_chn->desc_pool, desc_rx); 36793a76530SGrygorii Strashko dev_err(dev, "Failed to map rx skb buffer\n"); 36893a76530SGrygorii Strashko return -EINVAL; 36993a76530SGrygorii Strashko } 37093a76530SGrygorii Strashko 37193a76530SGrygorii Strashko cppi5_hdesc_init(desc_rx, CPPI5_INFO0_HDESC_EPIB_PRESENT, 37293a76530SGrygorii Strashko AM65_CPSW_NAV_PS_DATA_SIZE); 37393a76530SGrygorii Strashko cppi5_hdesc_attach_buf(desc_rx, 0, 0, buf_dma, skb_tailroom(skb)); 37493a76530SGrygorii Strashko swdata = cppi5_hdesc_get_swdata(desc_rx); 37593a76530SGrygorii Strashko *((void **)swdata) = skb; 37693a76530SGrygorii Strashko 37793a76530SGrygorii Strashko return k3_udma_glue_push_rx_chn(rx_chn->rx_chn, 0, desc_rx, desc_dma); 37893a76530SGrygorii Strashko } 37993a76530SGrygorii Strashko 38093a76530SGrygorii Strashko void am65_cpsw_nuss_set_p0_ptype(struct am65_cpsw_common *common) 38193a76530SGrygorii Strashko { 38293a76530SGrygorii Strashko struct am65_cpsw_host *host_p = am65_common_get_host(common); 38393a76530SGrygorii Strashko u32 val, pri_map; 38493a76530SGrygorii Strashko 38593a76530SGrygorii Strashko /* P0 set Receive Priority Type */ 38693a76530SGrygorii Strashko val = readl(host_p->port_base + AM65_CPSW_PORT_REG_PRI_CTL); 38793a76530SGrygorii Strashko 38893a76530SGrygorii Strashko if (common->pf_p0_rx_ptype_rrobin) { 38993a76530SGrygorii Strashko val |= AM65_CPSW_PORT_REG_PRI_CTL_RX_PTYPE_RROBIN; 39093a76530SGrygorii Strashko /* Enet Ports fifos works in fixed priority mode only, so 39193a76530SGrygorii Strashko * reset P0_Rx_Pri_Map so all packet will go in Enet fifo 0 39293a76530SGrygorii Strashko */ 39393a76530SGrygorii Strashko pri_map = 0x0; 39493a76530SGrygorii Strashko } else { 39593a76530SGrygorii Strashko val &= ~AM65_CPSW_PORT_REG_PRI_CTL_RX_PTYPE_RROBIN; 39693a76530SGrygorii Strashko /* restore P0_Rx_Pri_Map */ 39793a76530SGrygorii Strashko pri_map = 0x76543210; 39893a76530SGrygorii Strashko } 39993a76530SGrygorii Strashko 40093a76530SGrygorii Strashko writel(pri_map, host_p->port_base + AM65_CPSW_PORT_REG_RX_PRI_MAP); 40193a76530SGrygorii Strashko writel(val, host_p->port_base + AM65_CPSW_PORT_REG_PRI_CTL); 40293a76530SGrygorii Strashko } 40393a76530SGrygorii Strashko 40493a76530SGrygorii Strashko static int am65_cpsw_nuss_common_open(struct am65_cpsw_common *common, 40593a76530SGrygorii Strashko netdev_features_t features) 40693a76530SGrygorii Strashko { 40793a76530SGrygorii Strashko struct am65_cpsw_host *host_p = am65_common_get_host(common); 40893a76530SGrygorii Strashko int port_idx, i, ret; 40993a76530SGrygorii Strashko struct sk_buff *skb; 41093a76530SGrygorii Strashko u32 val, port_mask; 41193a76530SGrygorii Strashko 41293a76530SGrygorii Strashko if (common->usage_count) 41393a76530SGrygorii Strashko return 0; 41493a76530SGrygorii Strashko 41593a76530SGrygorii Strashko /* Control register */ 41693a76530SGrygorii Strashko writel(AM65_CPSW_CTL_P0_ENABLE | AM65_CPSW_CTL_P0_TX_CRC_REMOVE | 41793a76530SGrygorii Strashko AM65_CPSW_CTL_VLAN_AWARE | AM65_CPSW_CTL_P0_RX_PAD, 41893a76530SGrygorii Strashko common->cpsw_base + AM65_CPSW_REG_CTL); 41993a76530SGrygorii Strashko /* Max length register */ 42093a76530SGrygorii Strashko writel(AM65_CPSW_MAX_PACKET_SIZE, 42193a76530SGrygorii Strashko host_p->port_base + AM65_CPSW_PORT_REG_RX_MAXLEN); 42293a76530SGrygorii Strashko /* set base flow_id */ 42393a76530SGrygorii Strashko writel(common->rx_flow_id_base, 42493a76530SGrygorii Strashko host_p->port_base + AM65_CPSW_PORT0_REG_FLOW_ID_OFFSET); 42593a76530SGrygorii Strashko /* en tx crc offload */ 42693a76530SGrygorii Strashko if (features & NETIF_F_HW_CSUM) 42793a76530SGrygorii Strashko writel(AM65_CPSW_P0_REG_CTL_RX_CHECKSUM_EN, 42893a76530SGrygorii Strashko host_p->port_base + AM65_CPSW_P0_REG_CTL); 42993a76530SGrygorii Strashko 43093a76530SGrygorii Strashko am65_cpsw_nuss_set_p0_ptype(common); 43193a76530SGrygorii Strashko 43293a76530SGrygorii Strashko /* enable statistic */ 43393a76530SGrygorii Strashko val = BIT(HOST_PORT_NUM); 43493a76530SGrygorii Strashko for (port_idx = 0; port_idx < common->port_num; port_idx++) { 43593a76530SGrygorii Strashko struct am65_cpsw_port *port = &common->ports[port_idx]; 43693a76530SGrygorii Strashko 43793a76530SGrygorii Strashko if (!port->disabled) 43893a76530SGrygorii Strashko val |= BIT(port->port_id); 43993a76530SGrygorii Strashko } 44093a76530SGrygorii Strashko writel(val, common->cpsw_base + AM65_CPSW_REG_STAT_PORT_EN); 44193a76530SGrygorii Strashko 44293a76530SGrygorii Strashko /* disable priority elevation */ 44393a76530SGrygorii Strashko writel(0, common->cpsw_base + AM65_CPSW_REG_PTYPE); 44493a76530SGrygorii Strashko 44593a76530SGrygorii Strashko cpsw_ale_start(common->ale); 44693a76530SGrygorii Strashko 44793a76530SGrygorii Strashko /* limit to one RX flow only */ 44893a76530SGrygorii Strashko cpsw_ale_control_set(common->ale, HOST_PORT_NUM, 44993a76530SGrygorii Strashko ALE_DEFAULT_THREAD_ID, 0); 45093a76530SGrygorii Strashko cpsw_ale_control_set(common->ale, HOST_PORT_NUM, 45193a76530SGrygorii Strashko ALE_DEFAULT_THREAD_ENABLE, 1); 45293a76530SGrygorii Strashko if (AM65_CPSW_IS_CPSW2G(common)) 45393a76530SGrygorii Strashko cpsw_ale_control_set(common->ale, HOST_PORT_NUM, 45493a76530SGrygorii Strashko ALE_PORT_NOLEARN, 1); 45593a76530SGrygorii Strashko /* switch to vlan unaware mode */ 45693a76530SGrygorii Strashko cpsw_ale_control_set(common->ale, HOST_PORT_NUM, ALE_VLAN_AWARE, 1); 45793a76530SGrygorii Strashko cpsw_ale_control_set(common->ale, HOST_PORT_NUM, 45893a76530SGrygorii Strashko ALE_PORT_STATE, ALE_PORT_STATE_FORWARD); 45993a76530SGrygorii Strashko 46093a76530SGrygorii Strashko /* default vlan cfg: create mask based on enabled ports */ 46193a76530SGrygorii Strashko port_mask = GENMASK(common->port_num, 0) & 46293a76530SGrygorii Strashko ~common->disabled_ports_mask; 46393a76530SGrygorii Strashko 46493a76530SGrygorii Strashko cpsw_ale_add_vlan(common->ale, 0, port_mask, 46593a76530SGrygorii Strashko port_mask, port_mask, 46693a76530SGrygorii Strashko port_mask & ~ALE_PORT_HOST); 46793a76530SGrygorii Strashko 46893a76530SGrygorii Strashko for (i = 0; i < common->rx_chns.descs_num; i++) { 46993a76530SGrygorii Strashko skb = __netdev_alloc_skb_ip_align(NULL, 47093a76530SGrygorii Strashko AM65_CPSW_MAX_PACKET_SIZE, 47193a76530SGrygorii Strashko GFP_KERNEL); 47293a76530SGrygorii Strashko if (!skb) { 47393a76530SGrygorii Strashko dev_err(common->dev, "cannot allocate skb\n"); 47493a76530SGrygorii Strashko return -ENOMEM; 47593a76530SGrygorii Strashko } 47693a76530SGrygorii Strashko 47793a76530SGrygorii Strashko ret = am65_cpsw_nuss_rx_push(common, skb); 47893a76530SGrygorii Strashko if (ret < 0) { 47993a76530SGrygorii Strashko dev_err(common->dev, 48093a76530SGrygorii Strashko "cannot submit skb to channel rx, error %d\n", 48193a76530SGrygorii Strashko ret); 48293a76530SGrygorii Strashko kfree_skb(skb); 48393a76530SGrygorii Strashko return ret; 48493a76530SGrygorii Strashko } 48593a76530SGrygorii Strashko kmemleak_not_leak(skb); 48693a76530SGrygorii Strashko } 48793a76530SGrygorii Strashko k3_udma_glue_enable_rx_chn(common->rx_chns.rx_chn); 48893a76530SGrygorii Strashko 48993a76530SGrygorii Strashko for (i = 0; i < common->tx_ch_num; i++) { 49093a76530SGrygorii Strashko ret = k3_udma_glue_enable_tx_chn(common->tx_chns[i].tx_chn); 49193a76530SGrygorii Strashko if (ret) 49293a76530SGrygorii Strashko return ret; 49393a76530SGrygorii Strashko napi_enable(&common->tx_chns[i].napi_tx); 49493a76530SGrygorii Strashko } 49593a76530SGrygorii Strashko 49693a76530SGrygorii Strashko napi_enable(&common->napi_rx); 49793a76530SGrygorii Strashko 49893a76530SGrygorii Strashko dev_dbg(common->dev, "cpsw_nuss started\n"); 49993a76530SGrygorii Strashko return 0; 50093a76530SGrygorii Strashko } 50193a76530SGrygorii Strashko 50293a76530SGrygorii Strashko static void am65_cpsw_nuss_tx_cleanup(void *data, dma_addr_t desc_dma); 50393a76530SGrygorii Strashko static void am65_cpsw_nuss_rx_cleanup(void *data, dma_addr_t desc_dma); 50493a76530SGrygorii Strashko 50593a76530SGrygorii Strashko static int am65_cpsw_nuss_common_stop(struct am65_cpsw_common *common) 50693a76530SGrygorii Strashko { 50793a76530SGrygorii Strashko int i; 50893a76530SGrygorii Strashko 50993a76530SGrygorii Strashko if (common->usage_count != 1) 51093a76530SGrygorii Strashko return 0; 51193a76530SGrygorii Strashko 51293a76530SGrygorii Strashko cpsw_ale_control_set(common->ale, HOST_PORT_NUM, 51393a76530SGrygorii Strashko ALE_PORT_STATE, ALE_PORT_STATE_DISABLE); 51493a76530SGrygorii Strashko 51593a76530SGrygorii Strashko /* shutdown tx channels */ 51693a76530SGrygorii Strashko atomic_set(&common->tdown_cnt, common->tx_ch_num); 51793a76530SGrygorii Strashko /* ensure new tdown_cnt value is visible */ 51893a76530SGrygorii Strashko smp_mb__after_atomic(); 51993a76530SGrygorii Strashko reinit_completion(&common->tdown_complete); 52093a76530SGrygorii Strashko 52193a76530SGrygorii Strashko for (i = 0; i < common->tx_ch_num; i++) 52293a76530SGrygorii Strashko k3_udma_glue_tdown_tx_chn(common->tx_chns[i].tx_chn, false); 52393a76530SGrygorii Strashko 52493a76530SGrygorii Strashko i = wait_for_completion_timeout(&common->tdown_complete, 52593a76530SGrygorii Strashko msecs_to_jiffies(1000)); 52693a76530SGrygorii Strashko if (!i) 52793a76530SGrygorii Strashko dev_err(common->dev, "tx timeout\n"); 52893a76530SGrygorii Strashko for (i = 0; i < common->tx_ch_num; i++) 52993a76530SGrygorii Strashko napi_disable(&common->tx_chns[i].napi_tx); 53093a76530SGrygorii Strashko 53193a76530SGrygorii Strashko for (i = 0; i < common->tx_ch_num; i++) { 53293a76530SGrygorii Strashko k3_udma_glue_reset_tx_chn(common->tx_chns[i].tx_chn, 53393a76530SGrygorii Strashko &common->tx_chns[i], 53493a76530SGrygorii Strashko am65_cpsw_nuss_tx_cleanup); 53593a76530SGrygorii Strashko k3_udma_glue_disable_tx_chn(common->tx_chns[i].tx_chn); 53693a76530SGrygorii Strashko } 53793a76530SGrygorii Strashko 53893a76530SGrygorii Strashko k3_udma_glue_tdown_rx_chn(common->rx_chns.rx_chn, true); 53993a76530SGrygorii Strashko napi_disable(&common->napi_rx); 54093a76530SGrygorii Strashko 54193a76530SGrygorii Strashko for (i = 0; i < AM65_CPSW_MAX_RX_FLOWS; i++) 54293a76530SGrygorii Strashko k3_udma_glue_reset_rx_chn(common->rx_chns.rx_chn, i, 54393a76530SGrygorii Strashko &common->rx_chns, 54493a76530SGrygorii Strashko am65_cpsw_nuss_rx_cleanup, !!i); 54593a76530SGrygorii Strashko 54693a76530SGrygorii Strashko k3_udma_glue_disable_rx_chn(common->rx_chns.rx_chn); 54793a76530SGrygorii Strashko 54893a76530SGrygorii Strashko cpsw_ale_stop(common->ale); 54993a76530SGrygorii Strashko 55093a76530SGrygorii Strashko writel(0, common->cpsw_base + AM65_CPSW_REG_CTL); 55193a76530SGrygorii Strashko writel(0, common->cpsw_base + AM65_CPSW_REG_STAT_PORT_EN); 55293a76530SGrygorii Strashko 55393a76530SGrygorii Strashko dev_dbg(common->dev, "cpsw_nuss stopped\n"); 55493a76530SGrygorii Strashko return 0; 55593a76530SGrygorii Strashko } 55693a76530SGrygorii Strashko 55793a76530SGrygorii Strashko static int am65_cpsw_nuss_ndo_slave_stop(struct net_device *ndev) 55893a76530SGrygorii Strashko { 55993a76530SGrygorii Strashko struct am65_cpsw_common *common = am65_ndev_to_common(ndev); 56093a76530SGrygorii Strashko struct am65_cpsw_port *port = am65_ndev_to_port(ndev); 56193a76530SGrygorii Strashko int ret; 56293a76530SGrygorii Strashko 56393a76530SGrygorii Strashko if (port->slave.phy) 56493a76530SGrygorii Strashko phy_stop(port->slave.phy); 56593a76530SGrygorii Strashko 56693a76530SGrygorii Strashko netif_tx_stop_all_queues(ndev); 56793a76530SGrygorii Strashko 56893a76530SGrygorii Strashko if (port->slave.phy) { 56993a76530SGrygorii Strashko phy_disconnect(port->slave.phy); 57093a76530SGrygorii Strashko port->slave.phy = NULL; 57193a76530SGrygorii Strashko } 57293a76530SGrygorii Strashko 57393a76530SGrygorii Strashko ret = am65_cpsw_nuss_common_stop(common); 57493a76530SGrygorii Strashko if (ret) 57593a76530SGrygorii Strashko return ret; 57693a76530SGrygorii Strashko 57793a76530SGrygorii Strashko common->usage_count--; 57893a76530SGrygorii Strashko pm_runtime_put(common->dev); 57993a76530SGrygorii Strashko return 0; 58093a76530SGrygorii Strashko } 58193a76530SGrygorii Strashko 5827bcffde0SGrygorii Strashko static int cpsw_restore_vlans(struct net_device *vdev, int vid, void *arg) 5837bcffde0SGrygorii Strashko { 5847bcffde0SGrygorii Strashko struct am65_cpsw_port *port = arg; 5857bcffde0SGrygorii Strashko 5867bcffde0SGrygorii Strashko if (!vdev) 5877bcffde0SGrygorii Strashko return 0; 5887bcffde0SGrygorii Strashko 5897bcffde0SGrygorii Strashko return am65_cpsw_nuss_ndo_slave_add_vid(port->ndev, 0, vid); 5907bcffde0SGrygorii Strashko } 5917bcffde0SGrygorii Strashko 59293a76530SGrygorii Strashko static int am65_cpsw_nuss_ndo_slave_open(struct net_device *ndev) 59393a76530SGrygorii Strashko { 59493a76530SGrygorii Strashko struct am65_cpsw_common *common = am65_ndev_to_common(ndev); 59593a76530SGrygorii Strashko struct am65_cpsw_port *port = am65_ndev_to_port(ndev); 59693a76530SGrygorii Strashko u32 port_mask; 59793a76530SGrygorii Strashko int ret, i; 59893a76530SGrygorii Strashko 59993a76530SGrygorii Strashko ret = pm_runtime_get_sync(common->dev); 60093a76530SGrygorii Strashko if (ret < 0) { 60193a76530SGrygorii Strashko pm_runtime_put_noidle(common->dev); 60293a76530SGrygorii Strashko return ret; 60393a76530SGrygorii Strashko } 60493a76530SGrygorii Strashko 60593a76530SGrygorii Strashko /* Notify the stack of the actual queue counts. */ 60693a76530SGrygorii Strashko ret = netif_set_real_num_tx_queues(ndev, common->tx_ch_num); 60793a76530SGrygorii Strashko if (ret) { 60893a76530SGrygorii Strashko dev_err(common->dev, "cannot set real number of tx queues\n"); 60993a76530SGrygorii Strashko return ret; 61093a76530SGrygorii Strashko } 61193a76530SGrygorii Strashko 61293a76530SGrygorii Strashko ret = netif_set_real_num_rx_queues(ndev, AM65_CPSW_MAX_RX_QUEUES); 61393a76530SGrygorii Strashko if (ret) { 61493a76530SGrygorii Strashko dev_err(common->dev, "cannot set real number of rx queues\n"); 61593a76530SGrygorii Strashko return ret; 61693a76530SGrygorii Strashko } 61793a76530SGrygorii Strashko 61893a76530SGrygorii Strashko for (i = 0; i < common->tx_ch_num; i++) 61993a76530SGrygorii Strashko netdev_tx_reset_queue(netdev_get_tx_queue(ndev, i)); 62093a76530SGrygorii Strashko 62193a76530SGrygorii Strashko ret = am65_cpsw_nuss_common_open(common, ndev->features); 62293a76530SGrygorii Strashko if (ret) 62393a76530SGrygorii Strashko return ret; 62493a76530SGrygorii Strashko 62593a76530SGrygorii Strashko common->usage_count++; 62693a76530SGrygorii Strashko 62793a76530SGrygorii Strashko am65_cpsw_port_set_sl_mac(port, ndev->dev_addr); 62893a76530SGrygorii Strashko 62993a76530SGrygorii Strashko if (port->slave.mac_only) 63093a76530SGrygorii Strashko /* enable mac-only mode on port */ 63193a76530SGrygorii Strashko cpsw_ale_control_set(common->ale, port->port_id, 63293a76530SGrygorii Strashko ALE_PORT_MACONLY, 1); 63393a76530SGrygorii Strashko if (AM65_CPSW_IS_CPSW2G(common)) 63493a76530SGrygorii Strashko cpsw_ale_control_set(common->ale, port->port_id, 63593a76530SGrygorii Strashko ALE_PORT_NOLEARN, 1); 63693a76530SGrygorii Strashko 63793a76530SGrygorii Strashko port_mask = BIT(port->port_id) | ALE_PORT_HOST; 63893a76530SGrygorii Strashko cpsw_ale_add_ucast(common->ale, ndev->dev_addr, 63993a76530SGrygorii Strashko HOST_PORT_NUM, ALE_SECURE, 0); 64093a76530SGrygorii Strashko cpsw_ale_add_mcast(common->ale, ndev->broadcast, 64193a76530SGrygorii Strashko port_mask, 0, 0, ALE_MCAST_FWD_2); 64293a76530SGrygorii Strashko 64393a76530SGrygorii Strashko /* mac_sl should be configured via phy-link interface */ 64493a76530SGrygorii Strashko am65_cpsw_sl_ctl_reset(port); 64593a76530SGrygorii Strashko 64693a76530SGrygorii Strashko ret = phy_set_mode_ext(port->slave.ifphy, PHY_MODE_ETHERNET, 64793a76530SGrygorii Strashko port->slave.phy_if); 64893a76530SGrygorii Strashko if (ret) 64993a76530SGrygorii Strashko goto error_cleanup; 65093a76530SGrygorii Strashko 65193a76530SGrygorii Strashko if (port->slave.phy_node) { 65293a76530SGrygorii Strashko port->slave.phy = of_phy_connect(ndev, 65393a76530SGrygorii Strashko port->slave.phy_node, 65493a76530SGrygorii Strashko &am65_cpsw_nuss_adjust_link, 65593a76530SGrygorii Strashko 0, port->slave.phy_if); 65693a76530SGrygorii Strashko if (!port->slave.phy) { 65793a76530SGrygorii Strashko dev_err(common->dev, "phy %pOF not found on slave %d\n", 65893a76530SGrygorii Strashko port->slave.phy_node, 65993a76530SGrygorii Strashko port->port_id); 66093a76530SGrygorii Strashko ret = -ENODEV; 66193a76530SGrygorii Strashko goto error_cleanup; 66293a76530SGrygorii Strashko } 66393a76530SGrygorii Strashko } 66493a76530SGrygorii Strashko 6657bcffde0SGrygorii Strashko /* restore vlan configurations */ 6667bcffde0SGrygorii Strashko vlan_for_each(ndev, cpsw_restore_vlans, port); 6677bcffde0SGrygorii Strashko 66893a76530SGrygorii Strashko phy_attached_info(port->slave.phy); 66993a76530SGrygorii Strashko phy_start(port->slave.phy); 67093a76530SGrygorii Strashko 67193a76530SGrygorii Strashko return 0; 67293a76530SGrygorii Strashko 67393a76530SGrygorii Strashko error_cleanup: 67493a76530SGrygorii Strashko am65_cpsw_nuss_ndo_slave_stop(ndev); 67593a76530SGrygorii Strashko return ret; 67693a76530SGrygorii Strashko } 67793a76530SGrygorii Strashko 67893a76530SGrygorii Strashko static void am65_cpsw_nuss_rx_cleanup(void *data, dma_addr_t desc_dma) 67993a76530SGrygorii Strashko { 68093a76530SGrygorii Strashko struct am65_cpsw_rx_chn *rx_chn = data; 68193a76530SGrygorii Strashko struct cppi5_host_desc_t *desc_rx; 68293a76530SGrygorii Strashko struct sk_buff *skb; 68393a76530SGrygorii Strashko dma_addr_t buf_dma; 68493a76530SGrygorii Strashko u32 buf_dma_len; 68593a76530SGrygorii Strashko void **swdata; 68693a76530SGrygorii Strashko 68793a76530SGrygorii Strashko desc_rx = k3_cppi_desc_pool_dma2virt(rx_chn->desc_pool, desc_dma); 68893a76530SGrygorii Strashko swdata = cppi5_hdesc_get_swdata(desc_rx); 68993a76530SGrygorii Strashko skb = *swdata; 69093a76530SGrygorii Strashko cppi5_hdesc_get_obuf(desc_rx, &buf_dma, &buf_dma_len); 69193a76530SGrygorii Strashko 69293a76530SGrygorii Strashko dma_unmap_single(rx_chn->dev, buf_dma, buf_dma_len, DMA_FROM_DEVICE); 69393a76530SGrygorii Strashko k3_cppi_desc_pool_free(rx_chn->desc_pool, desc_rx); 69493a76530SGrygorii Strashko 69593a76530SGrygorii Strashko dev_kfree_skb_any(skb); 69693a76530SGrygorii Strashko } 69793a76530SGrygorii Strashko 698b1f66a5bSGrygorii Strashko static void am65_cpsw_nuss_rx_ts(struct sk_buff *skb, u32 *psdata) 699b1f66a5bSGrygorii Strashko { 700b1f66a5bSGrygorii Strashko struct skb_shared_hwtstamps *ssh; 701b1f66a5bSGrygorii Strashko u64 ns; 702b1f66a5bSGrygorii Strashko 703b1f66a5bSGrygorii Strashko ns = ((u64)psdata[1] << 32) | psdata[0]; 704b1f66a5bSGrygorii Strashko 705b1f66a5bSGrygorii Strashko ssh = skb_hwtstamps(skb); 706b1f66a5bSGrygorii Strashko memset(ssh, 0, sizeof(*ssh)); 707b1f66a5bSGrygorii Strashko ssh->hwtstamp = ns_to_ktime(ns); 708b1f66a5bSGrygorii Strashko } 709b1f66a5bSGrygorii Strashko 71093a76530SGrygorii Strashko /* RX psdata[2] word format - checksum information */ 71193a76530SGrygorii Strashko #define AM65_CPSW_RX_PSD_CSUM_ADD GENMASK(15, 0) 71293a76530SGrygorii Strashko #define AM65_CPSW_RX_PSD_CSUM_ERR BIT(16) 71393a76530SGrygorii Strashko #define AM65_CPSW_RX_PSD_IS_FRAGMENT BIT(17) 71493a76530SGrygorii Strashko #define AM65_CPSW_RX_PSD_IS_TCP BIT(18) 71593a76530SGrygorii Strashko #define AM65_CPSW_RX_PSD_IPV6_VALID BIT(19) 71693a76530SGrygorii Strashko #define AM65_CPSW_RX_PSD_IPV4_VALID BIT(20) 71793a76530SGrygorii Strashko 71893a76530SGrygorii Strashko static void am65_cpsw_nuss_rx_csum(struct sk_buff *skb, u32 csum_info) 71993a76530SGrygorii Strashko { 72093a76530SGrygorii Strashko /* HW can verify IPv4/IPv6 TCP/UDP packets checksum 72193a76530SGrygorii Strashko * csum information provides in psdata[2] word: 72293a76530SGrygorii Strashko * AM65_CPSW_RX_PSD_CSUM_ERR bit - indicates csum error 72393a76530SGrygorii Strashko * AM65_CPSW_RX_PSD_IPV6_VALID and AM65_CPSW_RX_PSD_IPV4_VALID 72493a76530SGrygorii Strashko * bits - indicates IPv4/IPv6 packet 72593a76530SGrygorii Strashko * AM65_CPSW_RX_PSD_IS_FRAGMENT bit - indicates fragmented packet 72693a76530SGrygorii Strashko * AM65_CPSW_RX_PSD_CSUM_ADD has value 0xFFFF for non fragmented packets 72793a76530SGrygorii Strashko * or csum value for fragmented packets if !AM65_CPSW_RX_PSD_CSUM_ERR 72893a76530SGrygorii Strashko */ 72993a76530SGrygorii Strashko skb_checksum_none_assert(skb); 73093a76530SGrygorii Strashko 73193a76530SGrygorii Strashko if (unlikely(!(skb->dev->features & NETIF_F_RXCSUM))) 73293a76530SGrygorii Strashko return; 73393a76530SGrygorii Strashko 73493a76530SGrygorii Strashko if ((csum_info & (AM65_CPSW_RX_PSD_IPV6_VALID | 73593a76530SGrygorii Strashko AM65_CPSW_RX_PSD_IPV4_VALID)) && 73693a76530SGrygorii Strashko !(csum_info & AM65_CPSW_RX_PSD_CSUM_ERR)) { 73793a76530SGrygorii Strashko /* csum for fragmented packets is unsupported */ 73893a76530SGrygorii Strashko if (!(csum_info & AM65_CPSW_RX_PSD_IS_FRAGMENT)) 73993a76530SGrygorii Strashko skb->ip_summed = CHECKSUM_UNNECESSARY; 74093a76530SGrygorii Strashko } 74193a76530SGrygorii Strashko } 74293a76530SGrygorii Strashko 74393a76530SGrygorii Strashko static int am65_cpsw_nuss_rx_packets(struct am65_cpsw_common *common, 74493a76530SGrygorii Strashko u32 flow_idx) 74593a76530SGrygorii Strashko { 74693a76530SGrygorii Strashko struct am65_cpsw_rx_chn *rx_chn = &common->rx_chns; 74793a76530SGrygorii Strashko u32 buf_dma_len, pkt_len, port_id = 0, csum_info; 74893a76530SGrygorii Strashko struct am65_cpsw_ndev_priv *ndev_priv; 74993a76530SGrygorii Strashko struct am65_cpsw_ndev_stats *stats; 75093a76530SGrygorii Strashko struct cppi5_host_desc_t *desc_rx; 75193a76530SGrygorii Strashko struct device *dev = common->dev; 75293a76530SGrygorii Strashko struct sk_buff *skb, *new_skb; 75393a76530SGrygorii Strashko dma_addr_t desc_dma, buf_dma; 75493a76530SGrygorii Strashko struct am65_cpsw_port *port; 75593a76530SGrygorii Strashko struct net_device *ndev; 75693a76530SGrygorii Strashko void **swdata; 75793a76530SGrygorii Strashko u32 *psdata; 75893a76530SGrygorii Strashko int ret = 0; 75993a76530SGrygorii Strashko 76093a76530SGrygorii Strashko ret = k3_udma_glue_pop_rx_chn(rx_chn->rx_chn, flow_idx, &desc_dma); 76193a76530SGrygorii Strashko if (ret) { 76293a76530SGrygorii Strashko if (ret != -ENODATA) 76393a76530SGrygorii Strashko dev_err(dev, "RX: pop chn fail %d\n", ret); 76493a76530SGrygorii Strashko return ret; 76593a76530SGrygorii Strashko } 76693a76530SGrygorii Strashko 76793a76530SGrygorii Strashko if (desc_dma & 0x1) { 76893a76530SGrygorii Strashko dev_dbg(dev, "%s RX tdown flow: %u\n", __func__, flow_idx); 76993a76530SGrygorii Strashko return 0; 77093a76530SGrygorii Strashko } 77193a76530SGrygorii Strashko 77293a76530SGrygorii Strashko desc_rx = k3_cppi_desc_pool_dma2virt(rx_chn->desc_pool, desc_dma); 77393a76530SGrygorii Strashko dev_dbg(dev, "%s flow_idx: %u desc %pad\n", 77493a76530SGrygorii Strashko __func__, flow_idx, &desc_dma); 77593a76530SGrygorii Strashko 77693a76530SGrygorii Strashko swdata = cppi5_hdesc_get_swdata(desc_rx); 77793a76530SGrygorii Strashko skb = *swdata; 77893a76530SGrygorii Strashko cppi5_hdesc_get_obuf(desc_rx, &buf_dma, &buf_dma_len); 77993a76530SGrygorii Strashko pkt_len = cppi5_hdesc_get_pktlen(desc_rx); 78093a76530SGrygorii Strashko cppi5_desc_get_tags_ids(&desc_rx->hdr, &port_id, NULL); 78193a76530SGrygorii Strashko dev_dbg(dev, "%s rx port_id:%d\n", __func__, port_id); 78293a76530SGrygorii Strashko port = am65_common_get_port(common, port_id); 78393a76530SGrygorii Strashko ndev = port->ndev; 78493a76530SGrygorii Strashko skb->dev = ndev; 78593a76530SGrygorii Strashko 78693a76530SGrygorii Strashko psdata = cppi5_hdesc_get_psdata(desc_rx); 787b1f66a5bSGrygorii Strashko /* add RX timestamp */ 788b1f66a5bSGrygorii Strashko if (port->rx_ts_enabled) 789b1f66a5bSGrygorii Strashko am65_cpsw_nuss_rx_ts(skb, psdata); 79093a76530SGrygorii Strashko csum_info = psdata[2]; 79193a76530SGrygorii Strashko dev_dbg(dev, "%s rx csum_info:%#x\n", __func__, csum_info); 79293a76530SGrygorii Strashko 79393a76530SGrygorii Strashko dma_unmap_single(dev, buf_dma, buf_dma_len, DMA_FROM_DEVICE); 79493a76530SGrygorii Strashko 79593a76530SGrygorii Strashko k3_cppi_desc_pool_free(rx_chn->desc_pool, desc_rx); 79693a76530SGrygorii Strashko 79793a76530SGrygorii Strashko new_skb = netdev_alloc_skb_ip_align(ndev, AM65_CPSW_MAX_PACKET_SIZE); 79893a76530SGrygorii Strashko if (new_skb) { 79993a76530SGrygorii Strashko skb_put(skb, pkt_len); 80093a76530SGrygorii Strashko skb->protocol = eth_type_trans(skb, ndev); 80193a76530SGrygorii Strashko am65_cpsw_nuss_rx_csum(skb, csum_info); 80293a76530SGrygorii Strashko napi_gro_receive(&common->napi_rx, skb); 80393a76530SGrygorii Strashko 80493a76530SGrygorii Strashko ndev_priv = netdev_priv(ndev); 80593a76530SGrygorii Strashko stats = this_cpu_ptr(ndev_priv->stats); 80693a76530SGrygorii Strashko 80793a76530SGrygorii Strashko u64_stats_update_begin(&stats->syncp); 80893a76530SGrygorii Strashko stats->rx_packets++; 80993a76530SGrygorii Strashko stats->rx_bytes += pkt_len; 81093a76530SGrygorii Strashko u64_stats_update_end(&stats->syncp); 81193a76530SGrygorii Strashko kmemleak_not_leak(new_skb); 81293a76530SGrygorii Strashko } else { 81393a76530SGrygorii Strashko ndev->stats.rx_dropped++; 81493a76530SGrygorii Strashko new_skb = skb; 81593a76530SGrygorii Strashko } 81693a76530SGrygorii Strashko 81793a76530SGrygorii Strashko if (netif_dormant(ndev)) { 81893a76530SGrygorii Strashko dev_kfree_skb_any(new_skb); 81993a76530SGrygorii Strashko ndev->stats.rx_dropped++; 82093a76530SGrygorii Strashko return 0; 82193a76530SGrygorii Strashko } 82293a76530SGrygorii Strashko 82393a76530SGrygorii Strashko ret = am65_cpsw_nuss_rx_push(common, new_skb); 82493a76530SGrygorii Strashko if (WARN_ON(ret < 0)) { 82593a76530SGrygorii Strashko dev_kfree_skb_any(new_skb); 82693a76530SGrygorii Strashko ndev->stats.rx_errors++; 82793a76530SGrygorii Strashko ndev->stats.rx_dropped++; 82893a76530SGrygorii Strashko } 82993a76530SGrygorii Strashko 83093a76530SGrygorii Strashko return ret; 83193a76530SGrygorii Strashko } 83293a76530SGrygorii Strashko 83393a76530SGrygorii Strashko static int am65_cpsw_nuss_rx_poll(struct napi_struct *napi_rx, int budget) 83493a76530SGrygorii Strashko { 83593a76530SGrygorii Strashko struct am65_cpsw_common *common = am65_cpsw_napi_to_common(napi_rx); 83693a76530SGrygorii Strashko int flow = AM65_CPSW_MAX_RX_FLOWS; 83793a76530SGrygorii Strashko int cur_budget, ret; 83893a76530SGrygorii Strashko int num_rx = 0; 83993a76530SGrygorii Strashko 84093a76530SGrygorii Strashko /* process every flow */ 84193a76530SGrygorii Strashko while (flow--) { 84293a76530SGrygorii Strashko cur_budget = budget - num_rx; 84393a76530SGrygorii Strashko 84493a76530SGrygorii Strashko while (cur_budget--) { 84593a76530SGrygorii Strashko ret = am65_cpsw_nuss_rx_packets(common, flow); 84693a76530SGrygorii Strashko if (ret) 84793a76530SGrygorii Strashko break; 84893a76530SGrygorii Strashko num_rx++; 84993a76530SGrygorii Strashko } 85093a76530SGrygorii Strashko 85193a76530SGrygorii Strashko if (num_rx >= budget) 85293a76530SGrygorii Strashko break; 85393a76530SGrygorii Strashko } 85493a76530SGrygorii Strashko 85593a76530SGrygorii Strashko dev_dbg(common->dev, "%s num_rx:%d %d\n", __func__, num_rx, budget); 85693a76530SGrygorii Strashko 85793a76530SGrygorii Strashko if (num_rx < budget && napi_complete_done(napi_rx, num_rx)) 85893a76530SGrygorii Strashko enable_irq(common->rx_chns.irq); 85993a76530SGrygorii Strashko 86093a76530SGrygorii Strashko return num_rx; 86193a76530SGrygorii Strashko } 86293a76530SGrygorii Strashko 86393a76530SGrygorii Strashko static void am65_cpsw_nuss_xmit_free(struct am65_cpsw_tx_chn *tx_chn, 86493a76530SGrygorii Strashko struct device *dev, 86593a76530SGrygorii Strashko struct cppi5_host_desc_t *desc) 86693a76530SGrygorii Strashko { 86793a76530SGrygorii Strashko struct cppi5_host_desc_t *first_desc, *next_desc; 86893a76530SGrygorii Strashko dma_addr_t buf_dma, next_desc_dma; 86993a76530SGrygorii Strashko u32 buf_dma_len; 87093a76530SGrygorii Strashko 87193a76530SGrygorii Strashko first_desc = desc; 87293a76530SGrygorii Strashko next_desc = first_desc; 87393a76530SGrygorii Strashko 87493a76530SGrygorii Strashko cppi5_hdesc_get_obuf(first_desc, &buf_dma, &buf_dma_len); 87593a76530SGrygorii Strashko 87693a76530SGrygorii Strashko dma_unmap_single(dev, buf_dma, buf_dma_len, 87793a76530SGrygorii Strashko DMA_TO_DEVICE); 87893a76530SGrygorii Strashko 87993a76530SGrygorii Strashko next_desc_dma = cppi5_hdesc_get_next_hbdesc(first_desc); 88093a76530SGrygorii Strashko while (next_desc_dma) { 88193a76530SGrygorii Strashko next_desc = k3_cppi_desc_pool_dma2virt(tx_chn->desc_pool, 88293a76530SGrygorii Strashko next_desc_dma); 88393a76530SGrygorii Strashko cppi5_hdesc_get_obuf(next_desc, &buf_dma, &buf_dma_len); 88493a76530SGrygorii Strashko 88593a76530SGrygorii Strashko dma_unmap_page(dev, buf_dma, buf_dma_len, 88693a76530SGrygorii Strashko DMA_TO_DEVICE); 88793a76530SGrygorii Strashko 88893a76530SGrygorii Strashko next_desc_dma = cppi5_hdesc_get_next_hbdesc(next_desc); 88993a76530SGrygorii Strashko 89093a76530SGrygorii Strashko k3_cppi_desc_pool_free(tx_chn->desc_pool, next_desc); 89193a76530SGrygorii Strashko } 89293a76530SGrygorii Strashko 89393a76530SGrygorii Strashko k3_cppi_desc_pool_free(tx_chn->desc_pool, first_desc); 89493a76530SGrygorii Strashko } 89593a76530SGrygorii Strashko 89693a76530SGrygorii Strashko static void am65_cpsw_nuss_tx_cleanup(void *data, dma_addr_t desc_dma) 89793a76530SGrygorii Strashko { 89893a76530SGrygorii Strashko struct am65_cpsw_tx_chn *tx_chn = data; 89993a76530SGrygorii Strashko struct cppi5_host_desc_t *desc_tx; 90093a76530SGrygorii Strashko struct sk_buff *skb; 90193a76530SGrygorii Strashko void **swdata; 90293a76530SGrygorii Strashko 90393a76530SGrygorii Strashko desc_tx = k3_cppi_desc_pool_dma2virt(tx_chn->desc_pool, desc_dma); 90493a76530SGrygorii Strashko swdata = cppi5_hdesc_get_swdata(desc_tx); 90593a76530SGrygorii Strashko skb = *(swdata); 90693a76530SGrygorii Strashko am65_cpsw_nuss_xmit_free(tx_chn, tx_chn->common->dev, desc_tx); 90793a76530SGrygorii Strashko 90893a76530SGrygorii Strashko dev_kfree_skb_any(skb); 90993a76530SGrygorii Strashko } 91093a76530SGrygorii Strashko 91193a76530SGrygorii Strashko static int am65_cpsw_nuss_tx_compl_packets(struct am65_cpsw_common *common, 91293a76530SGrygorii Strashko int chn, unsigned int budget) 91393a76530SGrygorii Strashko { 91493a76530SGrygorii Strashko struct cppi5_host_desc_t *desc_tx; 91593a76530SGrygorii Strashko struct device *dev = common->dev; 91693a76530SGrygorii Strashko struct am65_cpsw_tx_chn *tx_chn; 91793a76530SGrygorii Strashko struct netdev_queue *netif_txq; 91893a76530SGrygorii Strashko unsigned int total_bytes = 0; 91993a76530SGrygorii Strashko struct net_device *ndev; 92093a76530SGrygorii Strashko struct sk_buff *skb; 92193a76530SGrygorii Strashko dma_addr_t desc_dma; 92293a76530SGrygorii Strashko int res, num_tx = 0; 92393a76530SGrygorii Strashko void **swdata; 92493a76530SGrygorii Strashko 92593a76530SGrygorii Strashko tx_chn = &common->tx_chns[chn]; 92693a76530SGrygorii Strashko 92793a76530SGrygorii Strashko while (true) { 92893a76530SGrygorii Strashko struct am65_cpsw_ndev_priv *ndev_priv; 92993a76530SGrygorii Strashko struct am65_cpsw_ndev_stats *stats; 93093a76530SGrygorii Strashko 93193a76530SGrygorii Strashko res = k3_udma_glue_pop_tx_chn(tx_chn->tx_chn, &desc_dma); 93293a76530SGrygorii Strashko if (res == -ENODATA) 93393a76530SGrygorii Strashko break; 93493a76530SGrygorii Strashko 93593a76530SGrygorii Strashko if (desc_dma & 0x1) { 93693a76530SGrygorii Strashko if (atomic_dec_and_test(&common->tdown_cnt)) 93793a76530SGrygorii Strashko complete(&common->tdown_complete); 93893a76530SGrygorii Strashko break; 93993a76530SGrygorii Strashko } 94093a76530SGrygorii Strashko 94193a76530SGrygorii Strashko desc_tx = k3_cppi_desc_pool_dma2virt(tx_chn->desc_pool, 94293a76530SGrygorii Strashko desc_dma); 94393a76530SGrygorii Strashko swdata = cppi5_hdesc_get_swdata(desc_tx); 94493a76530SGrygorii Strashko skb = *(swdata); 94593a76530SGrygorii Strashko am65_cpsw_nuss_xmit_free(tx_chn, dev, desc_tx); 94693a76530SGrygorii Strashko 94793a76530SGrygorii Strashko ndev = skb->dev; 94893a76530SGrygorii Strashko 949b1f66a5bSGrygorii Strashko am65_cpts_tx_timestamp(common->cpts, skb); 950b1f66a5bSGrygorii Strashko 95193a76530SGrygorii Strashko ndev_priv = netdev_priv(ndev); 95293a76530SGrygorii Strashko stats = this_cpu_ptr(ndev_priv->stats); 95393a76530SGrygorii Strashko u64_stats_update_begin(&stats->syncp); 95493a76530SGrygorii Strashko stats->tx_packets++; 95593a76530SGrygorii Strashko stats->tx_bytes += skb->len; 95693a76530SGrygorii Strashko u64_stats_update_end(&stats->syncp); 95793a76530SGrygorii Strashko 95893a76530SGrygorii Strashko total_bytes += skb->len; 95993a76530SGrygorii Strashko napi_consume_skb(skb, budget); 96093a76530SGrygorii Strashko num_tx++; 96193a76530SGrygorii Strashko } 96293a76530SGrygorii Strashko 96393a76530SGrygorii Strashko if (!num_tx) 96493a76530SGrygorii Strashko return 0; 96593a76530SGrygorii Strashko 96693a76530SGrygorii Strashko netif_txq = netdev_get_tx_queue(ndev, chn); 96793a76530SGrygorii Strashko 96893a76530SGrygorii Strashko netdev_tx_completed_queue(netif_txq, num_tx, total_bytes); 96993a76530SGrygorii Strashko 97093a76530SGrygorii Strashko if (netif_tx_queue_stopped(netif_txq)) { 97193a76530SGrygorii Strashko /* Check whether the queue is stopped due to stalled tx dma, 97293a76530SGrygorii Strashko * if the queue is stopped then wake the queue as 97393a76530SGrygorii Strashko * we have free desc for tx 97493a76530SGrygorii Strashko */ 97593a76530SGrygorii Strashko __netif_tx_lock(netif_txq, smp_processor_id()); 97693a76530SGrygorii Strashko if (netif_running(ndev) && 97793a76530SGrygorii Strashko (k3_cppi_desc_pool_avail(tx_chn->desc_pool) >= 97893a76530SGrygorii Strashko MAX_SKB_FRAGS)) 97993a76530SGrygorii Strashko netif_tx_wake_queue(netif_txq); 98093a76530SGrygorii Strashko 98193a76530SGrygorii Strashko __netif_tx_unlock(netif_txq); 98293a76530SGrygorii Strashko } 98393a76530SGrygorii Strashko dev_dbg(dev, "%s:%u pkt:%d\n", __func__, chn, num_tx); 98493a76530SGrygorii Strashko 98593a76530SGrygorii Strashko return num_tx; 98693a76530SGrygorii Strashko } 98793a76530SGrygorii Strashko 98893a76530SGrygorii Strashko static int am65_cpsw_nuss_tx_poll(struct napi_struct *napi_tx, int budget) 98993a76530SGrygorii Strashko { 99093a76530SGrygorii Strashko struct am65_cpsw_tx_chn *tx_chn = am65_cpsw_napi_to_tx_chn(napi_tx); 99193a76530SGrygorii Strashko int num_tx; 99293a76530SGrygorii Strashko 99393a76530SGrygorii Strashko num_tx = am65_cpsw_nuss_tx_compl_packets(tx_chn->common, tx_chn->id, 99493a76530SGrygorii Strashko budget); 99593a76530SGrygorii Strashko num_tx = min(num_tx, budget); 99693a76530SGrygorii Strashko if (num_tx < budget) { 99793a76530SGrygorii Strashko napi_complete(napi_tx); 99893a76530SGrygorii Strashko enable_irq(tx_chn->irq); 99993a76530SGrygorii Strashko } 100093a76530SGrygorii Strashko 100193a76530SGrygorii Strashko return num_tx; 100293a76530SGrygorii Strashko } 100393a76530SGrygorii Strashko 100493a76530SGrygorii Strashko static irqreturn_t am65_cpsw_nuss_rx_irq(int irq, void *dev_id) 100593a76530SGrygorii Strashko { 100693a76530SGrygorii Strashko struct am65_cpsw_common *common = dev_id; 100793a76530SGrygorii Strashko 100893a76530SGrygorii Strashko disable_irq_nosync(irq); 100993a76530SGrygorii Strashko napi_schedule(&common->napi_rx); 101093a76530SGrygorii Strashko 101193a76530SGrygorii Strashko return IRQ_HANDLED; 101293a76530SGrygorii Strashko } 101393a76530SGrygorii Strashko 101493a76530SGrygorii Strashko static irqreturn_t am65_cpsw_nuss_tx_irq(int irq, void *dev_id) 101593a76530SGrygorii Strashko { 101693a76530SGrygorii Strashko struct am65_cpsw_tx_chn *tx_chn = dev_id; 101793a76530SGrygorii Strashko 101893a76530SGrygorii Strashko disable_irq_nosync(irq); 101993a76530SGrygorii Strashko napi_schedule(&tx_chn->napi_tx); 102093a76530SGrygorii Strashko 102193a76530SGrygorii Strashko return IRQ_HANDLED; 102293a76530SGrygorii Strashko } 102393a76530SGrygorii Strashko 102493a76530SGrygorii Strashko static netdev_tx_t am65_cpsw_nuss_ndo_slave_xmit(struct sk_buff *skb, 102593a76530SGrygorii Strashko struct net_device *ndev) 102693a76530SGrygorii Strashko { 102793a76530SGrygorii Strashko struct am65_cpsw_common *common = am65_ndev_to_common(ndev); 102893a76530SGrygorii Strashko struct cppi5_host_desc_t *first_desc, *next_desc, *cur_desc; 102993a76530SGrygorii Strashko struct am65_cpsw_port *port = am65_ndev_to_port(ndev); 103093a76530SGrygorii Strashko struct device *dev = common->dev; 103193a76530SGrygorii Strashko struct am65_cpsw_tx_chn *tx_chn; 103293a76530SGrygorii Strashko struct netdev_queue *netif_txq; 103393a76530SGrygorii Strashko dma_addr_t desc_dma, buf_dma; 103493a76530SGrygorii Strashko int ret, q_idx, i; 103593a76530SGrygorii Strashko void **swdata; 103693a76530SGrygorii Strashko u32 *psdata; 103793a76530SGrygorii Strashko u32 pkt_len; 103893a76530SGrygorii Strashko 103993a76530SGrygorii Strashko /* padding enabled in hw */ 104093a76530SGrygorii Strashko pkt_len = skb_headlen(skb); 104193a76530SGrygorii Strashko 1042b1f66a5bSGrygorii Strashko /* SKB TX timestamp */ 1043b1f66a5bSGrygorii Strashko if (port->tx_ts_enabled) 1044b1f66a5bSGrygorii Strashko am65_cpts_prep_tx_timestamp(common->cpts, skb); 1045b1f66a5bSGrygorii Strashko 104693a76530SGrygorii Strashko q_idx = skb_get_queue_mapping(skb); 104793a76530SGrygorii Strashko dev_dbg(dev, "%s skb_queue:%d\n", __func__, q_idx); 104893a76530SGrygorii Strashko 104993a76530SGrygorii Strashko tx_chn = &common->tx_chns[q_idx]; 105093a76530SGrygorii Strashko netif_txq = netdev_get_tx_queue(ndev, q_idx); 105193a76530SGrygorii Strashko 105293a76530SGrygorii Strashko /* Map the linear buffer */ 105393a76530SGrygorii Strashko buf_dma = dma_map_single(dev, skb->data, pkt_len, 105493a76530SGrygorii Strashko DMA_TO_DEVICE); 105593a76530SGrygorii Strashko if (unlikely(dma_mapping_error(dev, buf_dma))) { 105693a76530SGrygorii Strashko dev_err(dev, "Failed to map tx skb buffer\n"); 105793a76530SGrygorii Strashko ndev->stats.tx_errors++; 105893a76530SGrygorii Strashko goto err_free_skb; 105993a76530SGrygorii Strashko } 106093a76530SGrygorii Strashko 106193a76530SGrygorii Strashko first_desc = k3_cppi_desc_pool_alloc(tx_chn->desc_pool); 106293a76530SGrygorii Strashko if (!first_desc) { 106393a76530SGrygorii Strashko dev_dbg(dev, "Failed to allocate descriptor\n"); 106493a76530SGrygorii Strashko dma_unmap_single(dev, buf_dma, pkt_len, DMA_TO_DEVICE); 106593a76530SGrygorii Strashko goto busy_stop_q; 106693a76530SGrygorii Strashko } 106793a76530SGrygorii Strashko 106893a76530SGrygorii Strashko cppi5_hdesc_init(first_desc, CPPI5_INFO0_HDESC_EPIB_PRESENT, 106993a76530SGrygorii Strashko AM65_CPSW_NAV_PS_DATA_SIZE); 107093a76530SGrygorii Strashko cppi5_desc_set_pktids(&first_desc->hdr, 0, 0x3FFF); 107193a76530SGrygorii Strashko cppi5_hdesc_set_pkttype(first_desc, 0x7); 107293a76530SGrygorii Strashko cppi5_desc_set_tags_ids(&first_desc->hdr, 0, port->port_id); 107393a76530SGrygorii Strashko 107493a76530SGrygorii Strashko cppi5_hdesc_attach_buf(first_desc, buf_dma, pkt_len, buf_dma, pkt_len); 107593a76530SGrygorii Strashko swdata = cppi5_hdesc_get_swdata(first_desc); 107693a76530SGrygorii Strashko *(swdata) = skb; 107793a76530SGrygorii Strashko psdata = cppi5_hdesc_get_psdata(first_desc); 107893a76530SGrygorii Strashko 107993a76530SGrygorii Strashko /* HW csum offload if enabled */ 108093a76530SGrygorii Strashko psdata[2] = 0; 108193a76530SGrygorii Strashko if (likely(skb->ip_summed == CHECKSUM_PARTIAL)) { 108293a76530SGrygorii Strashko unsigned int cs_start, cs_offset; 108393a76530SGrygorii Strashko 108493a76530SGrygorii Strashko cs_start = skb_transport_offset(skb); 108593a76530SGrygorii Strashko cs_offset = cs_start + skb->csum_offset; 108693a76530SGrygorii Strashko /* HW numerates bytes starting from 1 */ 108793a76530SGrygorii Strashko psdata[2] = ((cs_offset + 1) << 24) | 108893a76530SGrygorii Strashko ((cs_start + 1) << 16) | (skb->len - cs_start); 108993a76530SGrygorii Strashko dev_dbg(dev, "%s tx psdata:%#x\n", __func__, psdata[2]); 109093a76530SGrygorii Strashko } 109193a76530SGrygorii Strashko 109293a76530SGrygorii Strashko if (!skb_is_nonlinear(skb)) 109393a76530SGrygorii Strashko goto done_tx; 109493a76530SGrygorii Strashko 109593a76530SGrygorii Strashko dev_dbg(dev, "fragmented SKB\n"); 109693a76530SGrygorii Strashko 109793a76530SGrygorii Strashko /* Handle the case where skb is fragmented in pages */ 109893a76530SGrygorii Strashko cur_desc = first_desc; 109993a76530SGrygorii Strashko for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { 110093a76530SGrygorii Strashko skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; 110193a76530SGrygorii Strashko u32 frag_size = skb_frag_size(frag); 110293a76530SGrygorii Strashko 110393a76530SGrygorii Strashko next_desc = k3_cppi_desc_pool_alloc(tx_chn->desc_pool); 110493a76530SGrygorii Strashko if (!next_desc) { 110593a76530SGrygorii Strashko dev_err(dev, "Failed to allocate descriptor\n"); 110693a76530SGrygorii Strashko goto busy_free_descs; 110793a76530SGrygorii Strashko } 110893a76530SGrygorii Strashko 110993a76530SGrygorii Strashko buf_dma = skb_frag_dma_map(dev, frag, 0, frag_size, 111093a76530SGrygorii Strashko DMA_TO_DEVICE); 111193a76530SGrygorii Strashko if (unlikely(dma_mapping_error(dev, buf_dma))) { 111293a76530SGrygorii Strashko dev_err(dev, "Failed to map tx skb page\n"); 111393a76530SGrygorii Strashko k3_cppi_desc_pool_free(tx_chn->desc_pool, next_desc); 111493a76530SGrygorii Strashko ndev->stats.tx_errors++; 111593a76530SGrygorii Strashko goto err_free_descs; 111693a76530SGrygorii Strashko } 111793a76530SGrygorii Strashko 111893a76530SGrygorii Strashko cppi5_hdesc_reset_hbdesc(next_desc); 111993a76530SGrygorii Strashko cppi5_hdesc_attach_buf(next_desc, 112093a76530SGrygorii Strashko buf_dma, frag_size, buf_dma, frag_size); 112193a76530SGrygorii Strashko 112293a76530SGrygorii Strashko desc_dma = k3_cppi_desc_pool_virt2dma(tx_chn->desc_pool, 112393a76530SGrygorii Strashko next_desc); 112493a76530SGrygorii Strashko cppi5_hdesc_link_hbdesc(cur_desc, desc_dma); 112593a76530SGrygorii Strashko 112693a76530SGrygorii Strashko pkt_len += frag_size; 112793a76530SGrygorii Strashko cur_desc = next_desc; 112893a76530SGrygorii Strashko } 112993a76530SGrygorii Strashko WARN_ON(pkt_len != skb->len); 113093a76530SGrygorii Strashko 113193a76530SGrygorii Strashko done_tx: 113293a76530SGrygorii Strashko skb_tx_timestamp(skb); 113393a76530SGrygorii Strashko 113493a76530SGrygorii Strashko /* report bql before sending packet */ 113593a76530SGrygorii Strashko netdev_tx_sent_queue(netif_txq, pkt_len); 113693a76530SGrygorii Strashko 113793a76530SGrygorii Strashko cppi5_hdesc_set_pktlen(first_desc, pkt_len); 113893a76530SGrygorii Strashko desc_dma = k3_cppi_desc_pool_virt2dma(tx_chn->desc_pool, first_desc); 113993a76530SGrygorii Strashko ret = k3_udma_glue_push_tx_chn(tx_chn->tx_chn, first_desc, desc_dma); 114093a76530SGrygorii Strashko if (ret) { 114193a76530SGrygorii Strashko dev_err(dev, "can't push desc %d\n", ret); 114293a76530SGrygorii Strashko /* inform bql */ 114393a76530SGrygorii Strashko netdev_tx_completed_queue(netif_txq, 1, pkt_len); 114493a76530SGrygorii Strashko ndev->stats.tx_errors++; 114593a76530SGrygorii Strashko goto err_free_descs; 114693a76530SGrygorii Strashko } 114793a76530SGrygorii Strashko 114893a76530SGrygorii Strashko if (k3_cppi_desc_pool_avail(tx_chn->desc_pool) < MAX_SKB_FRAGS) { 114993a76530SGrygorii Strashko netif_tx_stop_queue(netif_txq); 115093a76530SGrygorii Strashko /* Barrier, so that stop_queue visible to other cpus */ 115193a76530SGrygorii Strashko smp_mb__after_atomic(); 115293a76530SGrygorii Strashko dev_dbg(dev, "netif_tx_stop_queue %d\n", q_idx); 115393a76530SGrygorii Strashko 115493a76530SGrygorii Strashko /* re-check for smp */ 115593a76530SGrygorii Strashko if (k3_cppi_desc_pool_avail(tx_chn->desc_pool) >= 115693a76530SGrygorii Strashko MAX_SKB_FRAGS) { 115793a76530SGrygorii Strashko netif_tx_wake_queue(netif_txq); 115893a76530SGrygorii Strashko dev_dbg(dev, "netif_tx_wake_queue %d\n", q_idx); 115993a76530SGrygorii Strashko } 116093a76530SGrygorii Strashko } 116193a76530SGrygorii Strashko 116293a76530SGrygorii Strashko return NETDEV_TX_OK; 116393a76530SGrygorii Strashko 116493a76530SGrygorii Strashko err_free_descs: 116593a76530SGrygorii Strashko am65_cpsw_nuss_xmit_free(tx_chn, dev, first_desc); 116693a76530SGrygorii Strashko err_free_skb: 116793a76530SGrygorii Strashko ndev->stats.tx_dropped++; 116893a76530SGrygorii Strashko dev_kfree_skb_any(skb); 116993a76530SGrygorii Strashko return NETDEV_TX_OK; 117093a76530SGrygorii Strashko 117193a76530SGrygorii Strashko busy_free_descs: 117293a76530SGrygorii Strashko am65_cpsw_nuss_xmit_free(tx_chn, dev, first_desc); 117393a76530SGrygorii Strashko busy_stop_q: 117493a76530SGrygorii Strashko netif_tx_stop_queue(netif_txq); 117593a76530SGrygorii Strashko return NETDEV_TX_BUSY; 117693a76530SGrygorii Strashko } 117793a76530SGrygorii Strashko 117893a76530SGrygorii Strashko static int am65_cpsw_nuss_ndo_slave_set_mac_address(struct net_device *ndev, 117993a76530SGrygorii Strashko void *addr) 118093a76530SGrygorii Strashko { 118193a76530SGrygorii Strashko struct am65_cpsw_common *common = am65_ndev_to_common(ndev); 118293a76530SGrygorii Strashko struct am65_cpsw_port *port = am65_ndev_to_port(ndev); 118393a76530SGrygorii Strashko struct sockaddr *sockaddr = (struct sockaddr *)addr; 118493a76530SGrygorii Strashko int ret; 118593a76530SGrygorii Strashko 118693a76530SGrygorii Strashko ret = eth_prepare_mac_addr_change(ndev, addr); 118793a76530SGrygorii Strashko if (ret < 0) 118893a76530SGrygorii Strashko return ret; 118993a76530SGrygorii Strashko 119093a76530SGrygorii Strashko ret = pm_runtime_get_sync(common->dev); 119193a76530SGrygorii Strashko if (ret < 0) { 119293a76530SGrygorii Strashko pm_runtime_put_noidle(common->dev); 119393a76530SGrygorii Strashko return ret; 119493a76530SGrygorii Strashko } 119593a76530SGrygorii Strashko 119693a76530SGrygorii Strashko cpsw_ale_del_ucast(common->ale, ndev->dev_addr, 119793a76530SGrygorii Strashko HOST_PORT_NUM, 0, 0); 119893a76530SGrygorii Strashko cpsw_ale_add_ucast(common->ale, sockaddr->sa_data, 119993a76530SGrygorii Strashko HOST_PORT_NUM, ALE_SECURE, 0); 120093a76530SGrygorii Strashko 120193a76530SGrygorii Strashko am65_cpsw_port_set_sl_mac(port, addr); 120293a76530SGrygorii Strashko eth_commit_mac_addr_change(ndev, sockaddr); 120393a76530SGrygorii Strashko 120493a76530SGrygorii Strashko pm_runtime_put(common->dev); 120593a76530SGrygorii Strashko 120693a76530SGrygorii Strashko return 0; 120793a76530SGrygorii Strashko } 120893a76530SGrygorii Strashko 1209b1f66a5bSGrygorii Strashko static int am65_cpsw_nuss_hwtstamp_set(struct net_device *ndev, 1210b1f66a5bSGrygorii Strashko struct ifreq *ifr) 1211b1f66a5bSGrygorii Strashko { 1212b1f66a5bSGrygorii Strashko struct am65_cpsw_common *common = am65_ndev_to_common(ndev); 1213b1f66a5bSGrygorii Strashko struct am65_cpsw_port *port = am65_ndev_to_port(ndev); 1214b1f66a5bSGrygorii Strashko u32 ts_ctrl, seq_id, ts_ctrl_ltype2, ts_vlan_ltype; 1215b1f66a5bSGrygorii Strashko struct hwtstamp_config cfg; 1216b1f66a5bSGrygorii Strashko 1217b1f66a5bSGrygorii Strashko if (!IS_ENABLED(CONFIG_TI_K3_AM65_CPTS)) 1218b1f66a5bSGrygorii Strashko return -EOPNOTSUPP; 1219b1f66a5bSGrygorii Strashko 1220b1f66a5bSGrygorii Strashko if (copy_from_user(&cfg, ifr->ifr_data, sizeof(cfg))) 1221b1f66a5bSGrygorii Strashko return -EFAULT; 1222b1f66a5bSGrygorii Strashko 1223b1f66a5bSGrygorii Strashko /* TX HW timestamp */ 1224b1f66a5bSGrygorii Strashko switch (cfg.tx_type) { 1225b1f66a5bSGrygorii Strashko case HWTSTAMP_TX_OFF: 1226b1f66a5bSGrygorii Strashko case HWTSTAMP_TX_ON: 1227b1f66a5bSGrygorii Strashko break; 1228b1f66a5bSGrygorii Strashko default: 1229b1f66a5bSGrygorii Strashko return -ERANGE; 1230b1f66a5bSGrygorii Strashko } 1231b1f66a5bSGrygorii Strashko 1232b1f66a5bSGrygorii Strashko switch (cfg.rx_filter) { 1233b1f66a5bSGrygorii Strashko case HWTSTAMP_FILTER_NONE: 1234b1f66a5bSGrygorii Strashko port->rx_ts_enabled = false; 1235b1f66a5bSGrygorii Strashko break; 1236b1f66a5bSGrygorii Strashko case HWTSTAMP_FILTER_ALL: 1237b1f66a5bSGrygorii Strashko case HWTSTAMP_FILTER_SOME: 1238b1f66a5bSGrygorii Strashko case HWTSTAMP_FILTER_PTP_V1_L4_EVENT: 1239b1f66a5bSGrygorii Strashko case HWTSTAMP_FILTER_PTP_V1_L4_SYNC: 1240b1f66a5bSGrygorii Strashko case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ: 1241b1f66a5bSGrygorii Strashko case HWTSTAMP_FILTER_PTP_V2_L4_EVENT: 1242b1f66a5bSGrygorii Strashko case HWTSTAMP_FILTER_PTP_V2_L4_SYNC: 1243b1f66a5bSGrygorii Strashko case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ: 1244b1f66a5bSGrygorii Strashko case HWTSTAMP_FILTER_PTP_V2_L2_EVENT: 1245b1f66a5bSGrygorii Strashko case HWTSTAMP_FILTER_PTP_V2_L2_SYNC: 1246b1f66a5bSGrygorii Strashko case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ: 1247b1f66a5bSGrygorii Strashko case HWTSTAMP_FILTER_PTP_V2_EVENT: 1248b1f66a5bSGrygorii Strashko case HWTSTAMP_FILTER_PTP_V2_SYNC: 1249b1f66a5bSGrygorii Strashko case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ: 1250b1f66a5bSGrygorii Strashko case HWTSTAMP_FILTER_NTP_ALL: 1251b1f66a5bSGrygorii Strashko port->rx_ts_enabled = true; 1252b1f66a5bSGrygorii Strashko cfg.rx_filter = HWTSTAMP_FILTER_ALL; 1253b1f66a5bSGrygorii Strashko break; 1254b1f66a5bSGrygorii Strashko default: 1255b1f66a5bSGrygorii Strashko return -ERANGE; 1256b1f66a5bSGrygorii Strashko } 1257b1f66a5bSGrygorii Strashko 1258b1f66a5bSGrygorii Strashko port->tx_ts_enabled = (cfg.tx_type == HWTSTAMP_TX_ON); 1259b1f66a5bSGrygorii Strashko 1260b1f66a5bSGrygorii Strashko /* cfg TX timestamp */ 1261b1f66a5bSGrygorii Strashko seq_id = (AM65_CPSW_TS_SEQ_ID_OFFSET << 1262b1f66a5bSGrygorii Strashko AM65_CPSW_PN_TS_SEQ_ID_OFFSET_SHIFT) | ETH_P_1588; 1263b1f66a5bSGrygorii Strashko 1264b1f66a5bSGrygorii Strashko ts_vlan_ltype = ETH_P_8021Q; 1265b1f66a5bSGrygorii Strashko 1266b1f66a5bSGrygorii Strashko ts_ctrl_ltype2 = ETH_P_1588 | 1267b1f66a5bSGrygorii Strashko AM65_CPSW_PN_TS_CTL_LTYPE2_TS_107 | 1268b1f66a5bSGrygorii Strashko AM65_CPSW_PN_TS_CTL_LTYPE2_TS_129 | 1269b1f66a5bSGrygorii Strashko AM65_CPSW_PN_TS_CTL_LTYPE2_TS_130 | 1270b1f66a5bSGrygorii Strashko AM65_CPSW_PN_TS_CTL_LTYPE2_TS_131 | 1271b1f66a5bSGrygorii Strashko AM65_CPSW_PN_TS_CTL_LTYPE2_TS_132 | 1272b1f66a5bSGrygorii Strashko AM65_CPSW_PN_TS_CTL_LTYPE2_TS_319 | 1273b1f66a5bSGrygorii Strashko AM65_CPSW_PN_TS_CTL_LTYPE2_TS_320 | 1274b1f66a5bSGrygorii Strashko AM65_CPSW_PN_TS_CTL_LTYPE2_TS_TTL_NONZERO; 1275b1f66a5bSGrygorii Strashko 1276b1f66a5bSGrygorii Strashko ts_ctrl = AM65_CPSW_TS_EVENT_MSG_TYPE_BITS << 1277b1f66a5bSGrygorii Strashko AM65_CPSW_PN_TS_CTL_MSG_TYPE_EN_SHIFT; 1278b1f66a5bSGrygorii Strashko 1279b1f66a5bSGrygorii Strashko if (port->tx_ts_enabled) 1280b1f66a5bSGrygorii Strashko ts_ctrl |= AM65_CPSW_TS_TX_ANX_ALL_EN | 1281b1f66a5bSGrygorii Strashko AM65_CPSW_PN_TS_CTL_TX_VLAN_LT1_EN; 1282b1f66a5bSGrygorii Strashko 1283b1f66a5bSGrygorii Strashko writel(seq_id, port->port_base + AM65_CPSW_PORTN_REG_TS_SEQ_LTYPE_REG); 1284b1f66a5bSGrygorii Strashko writel(ts_vlan_ltype, port->port_base + 1285b1f66a5bSGrygorii Strashko AM65_CPSW_PORTN_REG_TS_VLAN_LTYPE_REG); 1286b1f66a5bSGrygorii Strashko writel(ts_ctrl_ltype2, port->port_base + 1287b1f66a5bSGrygorii Strashko AM65_CPSW_PORTN_REG_TS_CTL_LTYPE2); 1288b1f66a5bSGrygorii Strashko writel(ts_ctrl, port->port_base + AM65_CPSW_PORTN_REG_TS_CTL); 1289b1f66a5bSGrygorii Strashko 1290b1f66a5bSGrygorii Strashko /* en/dis RX timestamp */ 1291b1f66a5bSGrygorii Strashko am65_cpts_rx_enable(common->cpts, port->rx_ts_enabled); 1292b1f66a5bSGrygorii Strashko 1293b1f66a5bSGrygorii Strashko return copy_to_user(ifr->ifr_data, &cfg, sizeof(cfg)) ? -EFAULT : 0; 1294b1f66a5bSGrygorii Strashko } 1295b1f66a5bSGrygorii Strashko 1296b1f66a5bSGrygorii Strashko static int am65_cpsw_nuss_hwtstamp_get(struct net_device *ndev, 1297b1f66a5bSGrygorii Strashko struct ifreq *ifr) 1298b1f66a5bSGrygorii Strashko { 1299b1f66a5bSGrygorii Strashko struct am65_cpsw_port *port = am65_ndev_to_port(ndev); 1300b1f66a5bSGrygorii Strashko struct hwtstamp_config cfg; 1301b1f66a5bSGrygorii Strashko 1302b1f66a5bSGrygorii Strashko if (!IS_ENABLED(CONFIG_TI_K3_AM65_CPTS)) 1303b1f66a5bSGrygorii Strashko return -EOPNOTSUPP; 1304b1f66a5bSGrygorii Strashko 1305b1f66a5bSGrygorii Strashko cfg.flags = 0; 1306b1f66a5bSGrygorii Strashko cfg.tx_type = port->tx_ts_enabled ? 1307b1f66a5bSGrygorii Strashko HWTSTAMP_TX_ON : HWTSTAMP_TX_OFF; 1308b1f66a5bSGrygorii Strashko cfg.rx_filter = port->rx_ts_enabled ? 1309b1f66a5bSGrygorii Strashko HWTSTAMP_FILTER_ALL : HWTSTAMP_FILTER_NONE; 1310b1f66a5bSGrygorii Strashko 1311b1f66a5bSGrygorii Strashko return copy_to_user(ifr->ifr_data, &cfg, sizeof(cfg)) ? -EFAULT : 0; 1312b1f66a5bSGrygorii Strashko } 1313b1f66a5bSGrygorii Strashko 131493a76530SGrygorii Strashko static int am65_cpsw_nuss_ndo_slave_ioctl(struct net_device *ndev, 131593a76530SGrygorii Strashko struct ifreq *req, int cmd) 131693a76530SGrygorii Strashko { 131793a76530SGrygorii Strashko struct am65_cpsw_port *port = am65_ndev_to_port(ndev); 131893a76530SGrygorii Strashko 131993a76530SGrygorii Strashko if (!netif_running(ndev)) 132093a76530SGrygorii Strashko return -EINVAL; 132193a76530SGrygorii Strashko 1322b1f66a5bSGrygorii Strashko switch (cmd) { 1323b1f66a5bSGrygorii Strashko case SIOCSHWTSTAMP: 1324b1f66a5bSGrygorii Strashko return am65_cpsw_nuss_hwtstamp_set(ndev, req); 1325b1f66a5bSGrygorii Strashko case SIOCGHWTSTAMP: 1326b1f66a5bSGrygorii Strashko return am65_cpsw_nuss_hwtstamp_get(ndev, req); 1327b1f66a5bSGrygorii Strashko } 1328b1f66a5bSGrygorii Strashko 132993a76530SGrygorii Strashko if (!port->slave.phy) 133093a76530SGrygorii Strashko return -EOPNOTSUPP; 133193a76530SGrygorii Strashko 133293a76530SGrygorii Strashko return phy_mii_ioctl(port->slave.phy, req, cmd); 133393a76530SGrygorii Strashko } 133493a76530SGrygorii Strashko 133593a76530SGrygorii Strashko static void am65_cpsw_nuss_ndo_get_stats(struct net_device *dev, 133693a76530SGrygorii Strashko struct rtnl_link_stats64 *stats) 133793a76530SGrygorii Strashko { 133893a76530SGrygorii Strashko struct am65_cpsw_ndev_priv *ndev_priv = netdev_priv(dev); 133993a76530SGrygorii Strashko unsigned int start; 134093a76530SGrygorii Strashko int cpu; 134193a76530SGrygorii Strashko 134293a76530SGrygorii Strashko for_each_possible_cpu(cpu) { 134393a76530SGrygorii Strashko struct am65_cpsw_ndev_stats *cpu_stats; 134493a76530SGrygorii Strashko u64 rx_packets; 134593a76530SGrygorii Strashko u64 rx_bytes; 134693a76530SGrygorii Strashko u64 tx_packets; 134793a76530SGrygorii Strashko u64 tx_bytes; 134893a76530SGrygorii Strashko 134993a76530SGrygorii Strashko cpu_stats = per_cpu_ptr(ndev_priv->stats, cpu); 135093a76530SGrygorii Strashko do { 135193a76530SGrygorii Strashko start = u64_stats_fetch_begin_irq(&cpu_stats->syncp); 135293a76530SGrygorii Strashko rx_packets = cpu_stats->rx_packets; 135393a76530SGrygorii Strashko rx_bytes = cpu_stats->rx_bytes; 135493a76530SGrygorii Strashko tx_packets = cpu_stats->tx_packets; 135593a76530SGrygorii Strashko tx_bytes = cpu_stats->tx_bytes; 135693a76530SGrygorii Strashko } while (u64_stats_fetch_retry_irq(&cpu_stats->syncp, start)); 135793a76530SGrygorii Strashko 135893a76530SGrygorii Strashko stats->rx_packets += rx_packets; 135993a76530SGrygorii Strashko stats->rx_bytes += rx_bytes; 136093a76530SGrygorii Strashko stats->tx_packets += tx_packets; 136193a76530SGrygorii Strashko stats->tx_bytes += tx_bytes; 136293a76530SGrygorii Strashko } 136393a76530SGrygorii Strashko 136493a76530SGrygorii Strashko stats->rx_errors = dev->stats.rx_errors; 136593a76530SGrygorii Strashko stats->rx_dropped = dev->stats.rx_dropped; 136693a76530SGrygorii Strashko stats->tx_dropped = dev->stats.tx_dropped; 136793a76530SGrygorii Strashko } 136893a76530SGrygorii Strashko 136993a76530SGrygorii Strashko static int am65_cpsw_nuss_ndo_slave_set_features(struct net_device *ndev, 137093a76530SGrygorii Strashko netdev_features_t features) 137193a76530SGrygorii Strashko { 137293a76530SGrygorii Strashko struct am65_cpsw_common *common = am65_ndev_to_common(ndev); 137393a76530SGrygorii Strashko netdev_features_t changes = features ^ ndev->features; 137493a76530SGrygorii Strashko struct am65_cpsw_host *host_p; 137593a76530SGrygorii Strashko 137693a76530SGrygorii Strashko host_p = am65_common_get_host(common); 137793a76530SGrygorii Strashko 137893a76530SGrygorii Strashko if (changes & NETIF_F_HW_CSUM) { 137993a76530SGrygorii Strashko bool enable = !!(features & NETIF_F_HW_CSUM); 138093a76530SGrygorii Strashko 138193a76530SGrygorii Strashko dev_info(common->dev, "Turn %s tx-checksum-ip-generic\n", 138293a76530SGrygorii Strashko enable ? "ON" : "OFF"); 138393a76530SGrygorii Strashko if (enable) 138493a76530SGrygorii Strashko writel(AM65_CPSW_P0_REG_CTL_RX_CHECKSUM_EN, 138593a76530SGrygorii Strashko host_p->port_base + AM65_CPSW_P0_REG_CTL); 138693a76530SGrygorii Strashko else 138793a76530SGrygorii Strashko writel(0, 138893a76530SGrygorii Strashko host_p->port_base + AM65_CPSW_P0_REG_CTL); 138993a76530SGrygorii Strashko } 139093a76530SGrygorii Strashko 139193a76530SGrygorii Strashko return 0; 139293a76530SGrygorii Strashko } 139393a76530SGrygorii Strashko 139493a76530SGrygorii Strashko static const struct net_device_ops am65_cpsw_nuss_netdev_ops_2g = { 139593a76530SGrygorii Strashko .ndo_open = am65_cpsw_nuss_ndo_slave_open, 139693a76530SGrygorii Strashko .ndo_stop = am65_cpsw_nuss_ndo_slave_stop, 139793a76530SGrygorii Strashko .ndo_start_xmit = am65_cpsw_nuss_ndo_slave_xmit, 139893a76530SGrygorii Strashko .ndo_set_rx_mode = am65_cpsw_nuss_ndo_slave_set_rx_mode, 139993a76530SGrygorii Strashko .ndo_get_stats64 = am65_cpsw_nuss_ndo_get_stats, 140093a76530SGrygorii Strashko .ndo_validate_addr = eth_validate_addr, 140193a76530SGrygorii Strashko .ndo_set_mac_address = am65_cpsw_nuss_ndo_slave_set_mac_address, 140293a76530SGrygorii Strashko .ndo_tx_timeout = am65_cpsw_nuss_ndo_host_tx_timeout, 140393a76530SGrygorii Strashko .ndo_vlan_rx_add_vid = am65_cpsw_nuss_ndo_slave_add_vid, 140493a76530SGrygorii Strashko .ndo_vlan_rx_kill_vid = am65_cpsw_nuss_ndo_slave_kill_vid, 140593a76530SGrygorii Strashko .ndo_do_ioctl = am65_cpsw_nuss_ndo_slave_ioctl, 140693a76530SGrygorii Strashko .ndo_set_features = am65_cpsw_nuss_ndo_slave_set_features, 14078127224cSIvan Khoronzhuk .ndo_setup_tc = am65_cpsw_qos_ndo_setup_tc, 140893a76530SGrygorii Strashko }; 140993a76530SGrygorii Strashko 141093a76530SGrygorii Strashko static void am65_cpsw_nuss_slave_disable_unused(struct am65_cpsw_port *port) 141193a76530SGrygorii Strashko { 141293a76530SGrygorii Strashko struct am65_cpsw_common *common = port->common; 141393a76530SGrygorii Strashko 141493a76530SGrygorii Strashko if (!port->disabled) 141593a76530SGrygorii Strashko return; 141693a76530SGrygorii Strashko 141793a76530SGrygorii Strashko common->disabled_ports_mask |= BIT(port->port_id); 141893a76530SGrygorii Strashko cpsw_ale_control_set(common->ale, port->port_id, 141993a76530SGrygorii Strashko ALE_PORT_STATE, ALE_PORT_STATE_DISABLE); 142093a76530SGrygorii Strashko 142193a76530SGrygorii Strashko cpsw_sl_reset(port->slave.mac_sl, 100); 142293a76530SGrygorii Strashko cpsw_sl_ctl_reset(port->slave.mac_sl); 142393a76530SGrygorii Strashko } 142493a76530SGrygorii Strashko 142593a76530SGrygorii Strashko static void am65_cpsw_nuss_free_tx_chns(void *data) 142693a76530SGrygorii Strashko { 142793a76530SGrygorii Strashko struct am65_cpsw_common *common = data; 142893a76530SGrygorii Strashko int i; 142993a76530SGrygorii Strashko 143093a76530SGrygorii Strashko for (i = 0; i < common->tx_ch_num; i++) { 143193a76530SGrygorii Strashko struct am65_cpsw_tx_chn *tx_chn = &common->tx_chns[i]; 143293a76530SGrygorii Strashko 143393a76530SGrygorii Strashko if (!IS_ERR_OR_NULL(tx_chn->tx_chn)) 143493a76530SGrygorii Strashko k3_udma_glue_release_tx_chn(tx_chn->tx_chn); 143593a76530SGrygorii Strashko 143693a76530SGrygorii Strashko if (!IS_ERR_OR_NULL(tx_chn->desc_pool)) 143793a76530SGrygorii Strashko k3_cppi_desc_pool_destroy(tx_chn->desc_pool); 143893a76530SGrygorii Strashko 143993a76530SGrygorii Strashko memset(tx_chn, 0, sizeof(*tx_chn)); 144093a76530SGrygorii Strashko } 144193a76530SGrygorii Strashko } 144293a76530SGrygorii Strashko 144393a76530SGrygorii Strashko void am65_cpsw_nuss_remove_tx_chns(struct am65_cpsw_common *common) 144493a76530SGrygorii Strashko { 144593a76530SGrygorii Strashko struct device *dev = common->dev; 144693a76530SGrygorii Strashko int i; 144793a76530SGrygorii Strashko 144893a76530SGrygorii Strashko devm_remove_action(dev, am65_cpsw_nuss_free_tx_chns, common); 144993a76530SGrygorii Strashko 145093a76530SGrygorii Strashko for (i = 0; i < common->tx_ch_num; i++) { 145193a76530SGrygorii Strashko struct am65_cpsw_tx_chn *tx_chn = &common->tx_chns[i]; 145293a76530SGrygorii Strashko 145393a76530SGrygorii Strashko if (tx_chn->irq) 145493a76530SGrygorii Strashko devm_free_irq(dev, tx_chn->irq, tx_chn); 145593a76530SGrygorii Strashko 145693a76530SGrygorii Strashko netif_napi_del(&tx_chn->napi_tx); 145793a76530SGrygorii Strashko 145893a76530SGrygorii Strashko if (!IS_ERR_OR_NULL(tx_chn->tx_chn)) 145993a76530SGrygorii Strashko k3_udma_glue_release_tx_chn(tx_chn->tx_chn); 146093a76530SGrygorii Strashko 146193a76530SGrygorii Strashko if (!IS_ERR_OR_NULL(tx_chn->desc_pool)) 146293a76530SGrygorii Strashko k3_cppi_desc_pool_destroy(tx_chn->desc_pool); 146393a76530SGrygorii Strashko 146493a76530SGrygorii Strashko memset(tx_chn, 0, sizeof(*tx_chn)); 146593a76530SGrygorii Strashko } 146693a76530SGrygorii Strashko } 146793a76530SGrygorii Strashko 146893a76530SGrygorii Strashko static int am65_cpsw_nuss_init_tx_chns(struct am65_cpsw_common *common) 146993a76530SGrygorii Strashko { 147093a76530SGrygorii Strashko u32 max_desc_num = ALIGN(AM65_CPSW_MAX_TX_DESC, MAX_SKB_FRAGS); 147193a76530SGrygorii Strashko struct k3_udma_glue_tx_channel_cfg tx_cfg = { 0 }; 147293a76530SGrygorii Strashko struct device *dev = common->dev; 147393a76530SGrygorii Strashko struct k3_ring_cfg ring_cfg = { 147493a76530SGrygorii Strashko .elm_size = K3_RINGACC_RING_ELSIZE_8, 147593a76530SGrygorii Strashko .mode = K3_RINGACC_RING_MODE_RING, 147693a76530SGrygorii Strashko .flags = 0 147793a76530SGrygorii Strashko }; 147893a76530SGrygorii Strashko u32 hdesc_size; 147993a76530SGrygorii Strashko int i, ret = 0; 148093a76530SGrygorii Strashko 148193a76530SGrygorii Strashko hdesc_size = cppi5_hdesc_calc_size(true, AM65_CPSW_NAV_PS_DATA_SIZE, 148293a76530SGrygorii Strashko AM65_CPSW_NAV_SW_DATA_SIZE); 148393a76530SGrygorii Strashko 148493a76530SGrygorii Strashko tx_cfg.swdata_size = AM65_CPSW_NAV_SW_DATA_SIZE; 148593a76530SGrygorii Strashko tx_cfg.tx_cfg = ring_cfg; 148693a76530SGrygorii Strashko tx_cfg.txcq_cfg = ring_cfg; 148793a76530SGrygorii Strashko tx_cfg.tx_cfg.size = max_desc_num; 148893a76530SGrygorii Strashko tx_cfg.txcq_cfg.size = max_desc_num; 148993a76530SGrygorii Strashko 149093a76530SGrygorii Strashko for (i = 0; i < common->tx_ch_num; i++) { 149193a76530SGrygorii Strashko struct am65_cpsw_tx_chn *tx_chn = &common->tx_chns[i]; 149293a76530SGrygorii Strashko 149393a76530SGrygorii Strashko snprintf(tx_chn->tx_chn_name, 149493a76530SGrygorii Strashko sizeof(tx_chn->tx_chn_name), "tx%d", i); 149593a76530SGrygorii Strashko 149693a76530SGrygorii Strashko tx_chn->common = common; 149793a76530SGrygorii Strashko tx_chn->id = i; 149893a76530SGrygorii Strashko tx_chn->descs_num = max_desc_num; 149993a76530SGrygorii Strashko tx_chn->desc_pool = 150093a76530SGrygorii Strashko k3_cppi_desc_pool_create_name(dev, 150193a76530SGrygorii Strashko tx_chn->descs_num, 150293a76530SGrygorii Strashko hdesc_size, 150393a76530SGrygorii Strashko tx_chn->tx_chn_name); 150493a76530SGrygorii Strashko if (IS_ERR(tx_chn->desc_pool)) { 150593a76530SGrygorii Strashko ret = PTR_ERR(tx_chn->desc_pool); 150693a76530SGrygorii Strashko dev_err(dev, "Failed to create poll %d\n", ret); 150793a76530SGrygorii Strashko goto err; 150893a76530SGrygorii Strashko } 150993a76530SGrygorii Strashko 151093a76530SGrygorii Strashko tx_chn->tx_chn = 151193a76530SGrygorii Strashko k3_udma_glue_request_tx_chn(dev, 151293a76530SGrygorii Strashko tx_chn->tx_chn_name, 151393a76530SGrygorii Strashko &tx_cfg); 151493a76530SGrygorii Strashko if (IS_ERR(tx_chn->tx_chn)) { 151593a76530SGrygorii Strashko ret = PTR_ERR(tx_chn->tx_chn); 151693a76530SGrygorii Strashko dev_err(dev, "Failed to request tx dma channel %d\n", 151793a76530SGrygorii Strashko ret); 151893a76530SGrygorii Strashko goto err; 151993a76530SGrygorii Strashko } 152093a76530SGrygorii Strashko 152193a76530SGrygorii Strashko tx_chn->irq = k3_udma_glue_tx_get_irq(tx_chn->tx_chn); 152293a76530SGrygorii Strashko if (tx_chn->irq <= 0) { 152393a76530SGrygorii Strashko dev_err(dev, "Failed to get tx dma irq %d\n", 152493a76530SGrygorii Strashko tx_chn->irq); 152593a76530SGrygorii Strashko goto err; 152693a76530SGrygorii Strashko } 152793a76530SGrygorii Strashko 152893a76530SGrygorii Strashko snprintf(tx_chn->tx_chn_name, 152993a76530SGrygorii Strashko sizeof(tx_chn->tx_chn_name), "%s-tx%d", 153093a76530SGrygorii Strashko dev_name(dev), tx_chn->id); 153193a76530SGrygorii Strashko } 153293a76530SGrygorii Strashko 153393a76530SGrygorii Strashko err: 153493a76530SGrygorii Strashko i = devm_add_action(dev, am65_cpsw_nuss_free_tx_chns, common); 153593a76530SGrygorii Strashko if (i) { 1536e6aaeafdSChristophe JAILLET dev_err(dev, "Failed to add free_tx_chns action %d\n", i); 153793a76530SGrygorii Strashko return i; 153893a76530SGrygorii Strashko } 153993a76530SGrygorii Strashko 154093a76530SGrygorii Strashko return ret; 154193a76530SGrygorii Strashko } 154293a76530SGrygorii Strashko 154393a76530SGrygorii Strashko static void am65_cpsw_nuss_free_rx_chns(void *data) 154493a76530SGrygorii Strashko { 154593a76530SGrygorii Strashko struct am65_cpsw_common *common = data; 154693a76530SGrygorii Strashko struct am65_cpsw_rx_chn *rx_chn; 154793a76530SGrygorii Strashko 154893a76530SGrygorii Strashko rx_chn = &common->rx_chns; 154993a76530SGrygorii Strashko 155093a76530SGrygorii Strashko if (!IS_ERR_OR_NULL(rx_chn->rx_chn)) 155193a76530SGrygorii Strashko k3_udma_glue_release_rx_chn(rx_chn->rx_chn); 155293a76530SGrygorii Strashko 155393a76530SGrygorii Strashko if (!IS_ERR_OR_NULL(rx_chn->desc_pool)) 155493a76530SGrygorii Strashko k3_cppi_desc_pool_destroy(rx_chn->desc_pool); 155593a76530SGrygorii Strashko } 155693a76530SGrygorii Strashko 155793a76530SGrygorii Strashko static int am65_cpsw_nuss_init_rx_chns(struct am65_cpsw_common *common) 155893a76530SGrygorii Strashko { 155993a76530SGrygorii Strashko struct am65_cpsw_rx_chn *rx_chn = &common->rx_chns; 156093a76530SGrygorii Strashko struct k3_udma_glue_rx_channel_cfg rx_cfg = { 0 }; 156193a76530SGrygorii Strashko u32 max_desc_num = AM65_CPSW_MAX_RX_DESC; 156293a76530SGrygorii Strashko struct device *dev = common->dev; 156393a76530SGrygorii Strashko u32 hdesc_size; 156493a76530SGrygorii Strashko u32 fdqring_id; 156593a76530SGrygorii Strashko int i, ret = 0; 156693a76530SGrygorii Strashko 156793a76530SGrygorii Strashko hdesc_size = cppi5_hdesc_calc_size(true, AM65_CPSW_NAV_PS_DATA_SIZE, 156893a76530SGrygorii Strashko AM65_CPSW_NAV_SW_DATA_SIZE); 156993a76530SGrygorii Strashko 157093a76530SGrygorii Strashko rx_cfg.swdata_size = AM65_CPSW_NAV_SW_DATA_SIZE; 157193a76530SGrygorii Strashko rx_cfg.flow_id_num = AM65_CPSW_MAX_RX_FLOWS; 157293a76530SGrygorii Strashko rx_cfg.flow_id_base = common->rx_flow_id_base; 157393a76530SGrygorii Strashko 157493a76530SGrygorii Strashko /* init all flows */ 157593a76530SGrygorii Strashko rx_chn->dev = dev; 157693a76530SGrygorii Strashko rx_chn->descs_num = max_desc_num; 157793a76530SGrygorii Strashko rx_chn->desc_pool = k3_cppi_desc_pool_create_name(dev, 157893a76530SGrygorii Strashko rx_chn->descs_num, 157993a76530SGrygorii Strashko hdesc_size, "rx"); 158093a76530SGrygorii Strashko if (IS_ERR(rx_chn->desc_pool)) { 158193a76530SGrygorii Strashko ret = PTR_ERR(rx_chn->desc_pool); 158293a76530SGrygorii Strashko dev_err(dev, "Failed to create rx poll %d\n", ret); 158393a76530SGrygorii Strashko goto err; 158493a76530SGrygorii Strashko } 158593a76530SGrygorii Strashko 158693a76530SGrygorii Strashko rx_chn->rx_chn = k3_udma_glue_request_rx_chn(dev, "rx", &rx_cfg); 158793a76530SGrygorii Strashko if (IS_ERR(rx_chn->rx_chn)) { 158893a76530SGrygorii Strashko ret = PTR_ERR(rx_chn->rx_chn); 158993a76530SGrygorii Strashko dev_err(dev, "Failed to request rx dma channel %d\n", ret); 159093a76530SGrygorii Strashko goto err; 159193a76530SGrygorii Strashko } 159293a76530SGrygorii Strashko 159393a76530SGrygorii Strashko common->rx_flow_id_base = 159493a76530SGrygorii Strashko k3_udma_glue_rx_get_flow_id_base(rx_chn->rx_chn); 159593a76530SGrygorii Strashko dev_info(dev, "set new flow-id-base %u\n", common->rx_flow_id_base); 159693a76530SGrygorii Strashko 159793a76530SGrygorii Strashko fdqring_id = K3_RINGACC_RING_ID_ANY; 159893a76530SGrygorii Strashko for (i = 0; i < rx_cfg.flow_id_num; i++) { 159993a76530SGrygorii Strashko struct k3_ring_cfg rxring_cfg = { 160093a76530SGrygorii Strashko .elm_size = K3_RINGACC_RING_ELSIZE_8, 160193a76530SGrygorii Strashko .mode = K3_RINGACC_RING_MODE_RING, 160293a76530SGrygorii Strashko .flags = 0, 160393a76530SGrygorii Strashko }; 160493a76530SGrygorii Strashko struct k3_ring_cfg fdqring_cfg = { 160593a76530SGrygorii Strashko .elm_size = K3_RINGACC_RING_ELSIZE_8, 160693a76530SGrygorii Strashko .mode = K3_RINGACC_RING_MODE_MESSAGE, 160793a76530SGrygorii Strashko .flags = K3_RINGACC_RING_SHARED, 160893a76530SGrygorii Strashko }; 160993a76530SGrygorii Strashko struct k3_udma_glue_rx_flow_cfg rx_flow_cfg = { 161093a76530SGrygorii Strashko .rx_cfg = rxring_cfg, 161193a76530SGrygorii Strashko .rxfdq_cfg = fdqring_cfg, 161293a76530SGrygorii Strashko .ring_rxq_id = K3_RINGACC_RING_ID_ANY, 161393a76530SGrygorii Strashko .src_tag_lo_sel = 161493a76530SGrygorii Strashko K3_UDMA_GLUE_SRC_TAG_LO_USE_REMOTE_SRC_TAG, 161593a76530SGrygorii Strashko }; 161693a76530SGrygorii Strashko 161793a76530SGrygorii Strashko rx_flow_cfg.ring_rxfdq0_id = fdqring_id; 161893a76530SGrygorii Strashko rx_flow_cfg.rx_cfg.size = max_desc_num; 161993a76530SGrygorii Strashko rx_flow_cfg.rxfdq_cfg.size = max_desc_num; 162093a76530SGrygorii Strashko 162193a76530SGrygorii Strashko ret = k3_udma_glue_rx_flow_init(rx_chn->rx_chn, 162293a76530SGrygorii Strashko i, &rx_flow_cfg); 162393a76530SGrygorii Strashko if (ret) { 162493a76530SGrygorii Strashko dev_err(dev, "Failed to init rx flow%d %d\n", i, ret); 162593a76530SGrygorii Strashko goto err; 162693a76530SGrygorii Strashko } 162793a76530SGrygorii Strashko if (!i) 162893a76530SGrygorii Strashko fdqring_id = 162993a76530SGrygorii Strashko k3_udma_glue_rx_flow_get_fdq_id(rx_chn->rx_chn, 163093a76530SGrygorii Strashko i); 163193a76530SGrygorii Strashko 163293a76530SGrygorii Strashko rx_chn->irq = k3_udma_glue_rx_get_irq(rx_chn->rx_chn, i); 163393a76530SGrygorii Strashko 163493a76530SGrygorii Strashko if (rx_chn->irq <= 0) { 163593a76530SGrygorii Strashko dev_err(dev, "Failed to get rx dma irq %d\n", 163693a76530SGrygorii Strashko rx_chn->irq); 163793a76530SGrygorii Strashko ret = -ENXIO; 163893a76530SGrygorii Strashko goto err; 163993a76530SGrygorii Strashko } 164093a76530SGrygorii Strashko } 164193a76530SGrygorii Strashko 164293a76530SGrygorii Strashko err: 164393a76530SGrygorii Strashko i = devm_add_action(dev, am65_cpsw_nuss_free_rx_chns, common); 164493a76530SGrygorii Strashko if (i) { 1645e6aaeafdSChristophe JAILLET dev_err(dev, "Failed to add free_rx_chns action %d\n", i); 164693a76530SGrygorii Strashko return i; 164793a76530SGrygorii Strashko } 164893a76530SGrygorii Strashko 164993a76530SGrygorii Strashko return ret; 165093a76530SGrygorii Strashko } 165193a76530SGrygorii Strashko 165293a76530SGrygorii Strashko static int am65_cpsw_nuss_init_host_p(struct am65_cpsw_common *common) 165393a76530SGrygorii Strashko { 165493a76530SGrygorii Strashko struct am65_cpsw_host *host_p = am65_common_get_host(common); 165593a76530SGrygorii Strashko 165693a76530SGrygorii Strashko host_p->common = common; 165793a76530SGrygorii Strashko host_p->port_base = common->cpsw_base + AM65_CPSW_NU_PORTS_BASE; 165893a76530SGrygorii Strashko host_p->stat_base = common->cpsw_base + AM65_CPSW_NU_STATS_BASE; 165993a76530SGrygorii Strashko 166093a76530SGrygorii Strashko return 0; 166193a76530SGrygorii Strashko } 166293a76530SGrygorii Strashko 166393a76530SGrygorii Strashko static int am65_cpsw_am654_get_efuse_macid(struct device_node *of_node, 166493a76530SGrygorii Strashko int slave, u8 *mac_addr) 166593a76530SGrygorii Strashko { 166693a76530SGrygorii Strashko u32 mac_lo, mac_hi, offset; 166793a76530SGrygorii Strashko struct regmap *syscon; 166893a76530SGrygorii Strashko int ret; 166993a76530SGrygorii Strashko 167093a76530SGrygorii Strashko syscon = syscon_regmap_lookup_by_phandle(of_node, "ti,syscon-efuse"); 167193a76530SGrygorii Strashko if (IS_ERR(syscon)) { 167293a76530SGrygorii Strashko if (PTR_ERR(syscon) == -ENODEV) 167393a76530SGrygorii Strashko return 0; 167493a76530SGrygorii Strashko return PTR_ERR(syscon); 167593a76530SGrygorii Strashko } 167693a76530SGrygorii Strashko 167793a76530SGrygorii Strashko ret = of_property_read_u32_index(of_node, "ti,syscon-efuse", 1, 167893a76530SGrygorii Strashko &offset); 167993a76530SGrygorii Strashko if (ret) 168093a76530SGrygorii Strashko return ret; 168193a76530SGrygorii Strashko 168293a76530SGrygorii Strashko regmap_read(syscon, offset, &mac_lo); 168393a76530SGrygorii Strashko regmap_read(syscon, offset + 4, &mac_hi); 168493a76530SGrygorii Strashko 168593a76530SGrygorii Strashko mac_addr[0] = (mac_hi >> 8) & 0xff; 168693a76530SGrygorii Strashko mac_addr[1] = mac_hi & 0xff; 168793a76530SGrygorii Strashko mac_addr[2] = (mac_lo >> 24) & 0xff; 168893a76530SGrygorii Strashko mac_addr[3] = (mac_lo >> 16) & 0xff; 168993a76530SGrygorii Strashko mac_addr[4] = (mac_lo >> 8) & 0xff; 169093a76530SGrygorii Strashko mac_addr[5] = mac_lo & 0xff; 169193a76530SGrygorii Strashko 169293a76530SGrygorii Strashko return 0; 169393a76530SGrygorii Strashko } 169493a76530SGrygorii Strashko 1695b1f66a5bSGrygorii Strashko static int am65_cpsw_init_cpts(struct am65_cpsw_common *common) 1696b1f66a5bSGrygorii Strashko { 1697b1f66a5bSGrygorii Strashko struct device *dev = common->dev; 1698b1f66a5bSGrygorii Strashko struct device_node *node; 1699b1f66a5bSGrygorii Strashko struct am65_cpts *cpts; 1700b1f66a5bSGrygorii Strashko void __iomem *reg_base; 1701b1f66a5bSGrygorii Strashko 1702b1f66a5bSGrygorii Strashko if (!IS_ENABLED(CONFIG_TI_K3_AM65_CPTS)) 1703b1f66a5bSGrygorii Strashko return 0; 1704b1f66a5bSGrygorii Strashko 1705b1f66a5bSGrygorii Strashko node = of_get_child_by_name(dev->of_node, "cpts"); 1706b1f66a5bSGrygorii Strashko if (!node) { 1707b1f66a5bSGrygorii Strashko dev_err(dev, "%s cpts not found\n", __func__); 1708b1f66a5bSGrygorii Strashko return -ENOENT; 1709b1f66a5bSGrygorii Strashko } 1710b1f66a5bSGrygorii Strashko 1711b1f66a5bSGrygorii Strashko reg_base = common->cpsw_base + AM65_CPSW_NU_CPTS_BASE; 1712b1f66a5bSGrygorii Strashko cpts = am65_cpts_create(dev, reg_base, node); 1713b1f66a5bSGrygorii Strashko if (IS_ERR(cpts)) { 1714b1f66a5bSGrygorii Strashko int ret = PTR_ERR(cpts); 1715b1f66a5bSGrygorii Strashko 1716b1f66a5bSGrygorii Strashko if (ret == -EOPNOTSUPP) { 1717b1f66a5bSGrygorii Strashko dev_info(dev, "cpts disabled\n"); 1718b1f66a5bSGrygorii Strashko return 0; 1719b1f66a5bSGrygorii Strashko } 1720b1f66a5bSGrygorii Strashko 1721b1f66a5bSGrygorii Strashko dev_err(dev, "cpts create err %d\n", ret); 1722b1f66a5bSGrygorii Strashko return ret; 1723b1f66a5bSGrygorii Strashko } 1724b1f66a5bSGrygorii Strashko common->cpts = cpts; 1725b1f66a5bSGrygorii Strashko 1726b1f66a5bSGrygorii Strashko return 0; 1727b1f66a5bSGrygorii Strashko } 1728b1f66a5bSGrygorii Strashko 172993a76530SGrygorii Strashko static int am65_cpsw_nuss_init_slave_ports(struct am65_cpsw_common *common) 173093a76530SGrygorii Strashko { 173193a76530SGrygorii Strashko struct device_node *node, *port_np; 173293a76530SGrygorii Strashko struct device *dev = common->dev; 173393a76530SGrygorii Strashko int ret; 173493a76530SGrygorii Strashko 173593a76530SGrygorii Strashko node = of_get_child_by_name(dev->of_node, "ethernet-ports"); 173693a76530SGrygorii Strashko if (!node) 173793a76530SGrygorii Strashko return -ENOENT; 173893a76530SGrygorii Strashko 173993a76530SGrygorii Strashko for_each_child_of_node(node, port_np) { 174093a76530SGrygorii Strashko struct am65_cpsw_port *port; 174193a76530SGrygorii Strashko const void *mac_addr; 174293a76530SGrygorii Strashko u32 port_id; 174393a76530SGrygorii Strashko 174493a76530SGrygorii Strashko /* it is not a slave port node, continue */ 174593a76530SGrygorii Strashko if (strcmp(port_np->name, "port")) 174693a76530SGrygorii Strashko continue; 174793a76530SGrygorii Strashko 174893a76530SGrygorii Strashko ret = of_property_read_u32(port_np, "reg", &port_id); 174993a76530SGrygorii Strashko if (ret < 0) { 175093a76530SGrygorii Strashko dev_err(dev, "%pOF error reading port_id %d\n", 175193a76530SGrygorii Strashko port_np, ret); 175293a76530SGrygorii Strashko return ret; 175393a76530SGrygorii Strashko } 175493a76530SGrygorii Strashko 175593a76530SGrygorii Strashko if (!port_id || port_id > common->port_num) { 175693a76530SGrygorii Strashko dev_err(dev, "%pOF has invalid port_id %u %s\n", 175793a76530SGrygorii Strashko port_np, port_id, port_np->name); 175893a76530SGrygorii Strashko return -EINVAL; 175993a76530SGrygorii Strashko } 176093a76530SGrygorii Strashko 176193a76530SGrygorii Strashko port = am65_common_get_port(common, port_id); 176293a76530SGrygorii Strashko port->port_id = port_id; 176393a76530SGrygorii Strashko port->common = common; 176493a76530SGrygorii Strashko port->port_base = common->cpsw_base + AM65_CPSW_NU_PORTS_BASE + 176593a76530SGrygorii Strashko AM65_CPSW_NU_PORTS_OFFSET * (port_id); 176693a76530SGrygorii Strashko port->stat_base = common->cpsw_base + AM65_CPSW_NU_STATS_BASE + 176793a76530SGrygorii Strashko (AM65_CPSW_NU_STATS_PORT_OFFSET * port_id); 176893a76530SGrygorii Strashko port->name = of_get_property(port_np, "label", NULL); 17698127224cSIvan Khoronzhuk port->fetch_ram_base = 17708127224cSIvan Khoronzhuk common->cpsw_base + AM65_CPSW_NU_FRAM_BASE + 17718127224cSIvan Khoronzhuk (AM65_CPSW_NU_FRAM_PORT_OFFSET * (port_id - 1)); 177293a76530SGrygorii Strashko 1773d6d0aeafSGrygorii Strashko port->slave.mac_sl = cpsw_sl_get("am65", dev, port->port_base); 1774d6d0aeafSGrygorii Strashko if (IS_ERR(port->slave.mac_sl)) 1775d6d0aeafSGrygorii Strashko return PTR_ERR(port->slave.mac_sl); 1776d6d0aeafSGrygorii Strashko 177793a76530SGrygorii Strashko port->disabled = !of_device_is_available(port_np); 177893a76530SGrygorii Strashko if (port->disabled) 177993a76530SGrygorii Strashko continue; 178093a76530SGrygorii Strashko 178193a76530SGrygorii Strashko port->slave.ifphy = devm_of_phy_get(dev, port_np, NULL); 178293a76530SGrygorii Strashko if (IS_ERR(port->slave.ifphy)) { 178393a76530SGrygorii Strashko ret = PTR_ERR(port->slave.ifphy); 178493a76530SGrygorii Strashko dev_err(dev, "%pOF error retrieving port phy: %d\n", 178593a76530SGrygorii Strashko port_np, ret); 178693a76530SGrygorii Strashko return ret; 178793a76530SGrygorii Strashko } 178893a76530SGrygorii Strashko 178993a76530SGrygorii Strashko port->slave.mac_only = 179093a76530SGrygorii Strashko of_property_read_bool(port_np, "ti,mac-only"); 179193a76530SGrygorii Strashko 179293a76530SGrygorii Strashko /* get phy/link info */ 179393a76530SGrygorii Strashko if (of_phy_is_fixed_link(port_np)) { 179493a76530SGrygorii Strashko ret = of_phy_register_fixed_link(port_np); 179593a76530SGrygorii Strashko if (ret) { 179693a76530SGrygorii Strashko if (ret != -EPROBE_DEFER) 179793a76530SGrygorii Strashko dev_err(dev, "%pOF failed to register fixed-link phy: %d\n", 179893a76530SGrygorii Strashko port_np, ret); 179993a76530SGrygorii Strashko return ret; 180093a76530SGrygorii Strashko } 180193a76530SGrygorii Strashko port->slave.phy_node = of_node_get(port_np); 180293a76530SGrygorii Strashko } else { 180393a76530SGrygorii Strashko port->slave.phy_node = 180493a76530SGrygorii Strashko of_parse_phandle(port_np, "phy-handle", 0); 180593a76530SGrygorii Strashko } 180693a76530SGrygorii Strashko 180793a76530SGrygorii Strashko if (!port->slave.phy_node) { 180893a76530SGrygorii Strashko dev_err(dev, 180993a76530SGrygorii Strashko "slave[%d] no phy found\n", port_id); 181093a76530SGrygorii Strashko return -ENODEV; 181193a76530SGrygorii Strashko } 181293a76530SGrygorii Strashko 181393a76530SGrygorii Strashko ret = of_get_phy_mode(port_np, &port->slave.phy_if); 181493a76530SGrygorii Strashko if (ret) { 181593a76530SGrygorii Strashko dev_err(dev, "%pOF read phy-mode err %d\n", 181693a76530SGrygorii Strashko port_np, ret); 181793a76530SGrygorii Strashko return ret; 181893a76530SGrygorii Strashko } 181993a76530SGrygorii Strashko 182093a76530SGrygorii Strashko mac_addr = of_get_mac_address(port_np); 182193a76530SGrygorii Strashko if (!IS_ERR(mac_addr)) { 182293a76530SGrygorii Strashko ether_addr_copy(port->slave.mac_addr, mac_addr); 182393a76530SGrygorii Strashko } else if (am65_cpsw_am654_get_efuse_macid(port_np, 182493a76530SGrygorii Strashko port->port_id, 182593a76530SGrygorii Strashko port->slave.mac_addr) || 182693a76530SGrygorii Strashko !is_valid_ether_addr(port->slave.mac_addr)) { 182793a76530SGrygorii Strashko random_ether_addr(port->slave.mac_addr); 182876dcbd23SColin Ian King dev_err(dev, "Use random MAC address\n"); 182993a76530SGrygorii Strashko } 183093a76530SGrygorii Strashko } 183193a76530SGrygorii Strashko of_node_put(node); 183293a76530SGrygorii Strashko 183393a76530SGrygorii Strashko return 0; 183493a76530SGrygorii Strashko } 183593a76530SGrygorii Strashko 183693a76530SGrygorii Strashko static void am65_cpsw_pcpu_stats_free(void *data) 183793a76530SGrygorii Strashko { 183893a76530SGrygorii Strashko struct am65_cpsw_ndev_stats __percpu *stats = data; 183993a76530SGrygorii Strashko 184093a76530SGrygorii Strashko free_percpu(stats); 184193a76530SGrygorii Strashko } 184293a76530SGrygorii Strashko 184393a76530SGrygorii Strashko static int am65_cpsw_nuss_init_ndev_2g(struct am65_cpsw_common *common) 184493a76530SGrygorii Strashko { 184593a76530SGrygorii Strashko struct am65_cpsw_ndev_priv *ndev_priv; 184693a76530SGrygorii Strashko struct device *dev = common->dev; 184793a76530SGrygorii Strashko struct am65_cpsw_port *port; 184893a76530SGrygorii Strashko int ret; 184993a76530SGrygorii Strashko 185093a76530SGrygorii Strashko port = am65_common_get_port(common, 1); 185193a76530SGrygorii Strashko 185293a76530SGrygorii Strashko /* alloc netdev */ 185393a76530SGrygorii Strashko port->ndev = devm_alloc_etherdev_mqs(common->dev, 185493a76530SGrygorii Strashko sizeof(struct am65_cpsw_ndev_priv), 185593a76530SGrygorii Strashko AM65_CPSW_MAX_TX_QUEUES, 185693a76530SGrygorii Strashko AM65_CPSW_MAX_RX_QUEUES); 185793a76530SGrygorii Strashko if (!port->ndev) { 185893a76530SGrygorii Strashko dev_err(dev, "error allocating slave net_device %u\n", 185993a76530SGrygorii Strashko port->port_id); 186093a76530SGrygorii Strashko return -ENOMEM; 186193a76530SGrygorii Strashko } 186293a76530SGrygorii Strashko 186393a76530SGrygorii Strashko ndev_priv = netdev_priv(port->ndev); 186493a76530SGrygorii Strashko ndev_priv->port = port; 186593a76530SGrygorii Strashko ndev_priv->msg_enable = AM65_CPSW_DEBUG; 186693a76530SGrygorii Strashko SET_NETDEV_DEV(port->ndev, dev); 186793a76530SGrygorii Strashko 186893a76530SGrygorii Strashko ether_addr_copy(port->ndev->dev_addr, port->slave.mac_addr); 186993a76530SGrygorii Strashko 187093a76530SGrygorii Strashko port->ndev->min_mtu = AM65_CPSW_MIN_PACKET_SIZE; 187193a76530SGrygorii Strashko port->ndev->max_mtu = AM65_CPSW_MAX_PACKET_SIZE; 187293a76530SGrygorii Strashko port->ndev->hw_features = NETIF_F_SG | 187393a76530SGrygorii Strashko NETIF_F_RXCSUM | 187493a76530SGrygorii Strashko NETIF_F_HW_CSUM; 187593a76530SGrygorii Strashko port->ndev->features = port->ndev->hw_features | 187693a76530SGrygorii Strashko NETIF_F_HW_VLAN_CTAG_FILTER; 187793a76530SGrygorii Strashko port->ndev->vlan_features |= NETIF_F_SG; 187893a76530SGrygorii Strashko port->ndev->netdev_ops = &am65_cpsw_nuss_netdev_ops_2g; 187993a76530SGrygorii Strashko port->ndev->ethtool_ops = &am65_cpsw_ethtool_ops_slave; 188093a76530SGrygorii Strashko 188193a76530SGrygorii Strashko /* Disable TX checksum offload by default due to HW bug */ 188238389aa6SGrygorii Strashko if (common->pdata.quirks & AM65_CPSW_QUIRK_I2027_NO_TX_CSUM) 188393a76530SGrygorii Strashko port->ndev->features &= ~NETIF_F_HW_CSUM; 188493a76530SGrygorii Strashko 188593a76530SGrygorii Strashko ndev_priv->stats = netdev_alloc_pcpu_stats(struct am65_cpsw_ndev_stats); 188693a76530SGrygorii Strashko if (!ndev_priv->stats) 188793a76530SGrygorii Strashko return -ENOMEM; 188893a76530SGrygorii Strashko 188993a76530SGrygorii Strashko ret = devm_add_action_or_reset(dev, am65_cpsw_pcpu_stats_free, 189093a76530SGrygorii Strashko ndev_priv->stats); 189193a76530SGrygorii Strashko if (ret) { 1892e6aaeafdSChristophe JAILLET dev_err(dev, "Failed to add percpu stat free action %d\n", ret); 189393a76530SGrygorii Strashko return ret; 189493a76530SGrygorii Strashko } 189593a76530SGrygorii Strashko 189693a76530SGrygorii Strashko netif_napi_add(port->ndev, &common->napi_rx, 189793a76530SGrygorii Strashko am65_cpsw_nuss_rx_poll, NAPI_POLL_WEIGHT); 189893a76530SGrygorii Strashko 189993a76530SGrygorii Strashko return ret; 190093a76530SGrygorii Strashko } 190193a76530SGrygorii Strashko 190293a76530SGrygorii Strashko static int am65_cpsw_nuss_ndev_add_napi_2g(struct am65_cpsw_common *common) 190393a76530SGrygorii Strashko { 190493a76530SGrygorii Strashko struct device *dev = common->dev; 190593a76530SGrygorii Strashko struct am65_cpsw_port *port; 190693a76530SGrygorii Strashko int i, ret = 0; 190793a76530SGrygorii Strashko 190893a76530SGrygorii Strashko port = am65_common_get_port(common, 1); 190993a76530SGrygorii Strashko 191093a76530SGrygorii Strashko for (i = 0; i < common->tx_ch_num; i++) { 191193a76530SGrygorii Strashko struct am65_cpsw_tx_chn *tx_chn = &common->tx_chns[i]; 191293a76530SGrygorii Strashko 191393a76530SGrygorii Strashko netif_tx_napi_add(port->ndev, &tx_chn->napi_tx, 191493a76530SGrygorii Strashko am65_cpsw_nuss_tx_poll, NAPI_POLL_WEIGHT); 191593a76530SGrygorii Strashko 191693a76530SGrygorii Strashko ret = devm_request_irq(dev, tx_chn->irq, 191793a76530SGrygorii Strashko am65_cpsw_nuss_tx_irq, 19186f5c27f9SGrygorii Strashko IRQF_TRIGGER_HIGH, 19196f5c27f9SGrygorii Strashko tx_chn->tx_chn_name, tx_chn); 192093a76530SGrygorii Strashko if (ret) { 192193a76530SGrygorii Strashko dev_err(dev, "failure requesting tx%u irq %u, %d\n", 192293a76530SGrygorii Strashko tx_chn->id, tx_chn->irq, ret); 192393a76530SGrygorii Strashko goto err; 192493a76530SGrygorii Strashko } 192593a76530SGrygorii Strashko } 192693a76530SGrygorii Strashko 192793a76530SGrygorii Strashko err: 192893a76530SGrygorii Strashko return ret; 192993a76530SGrygorii Strashko } 193093a76530SGrygorii Strashko 193193a76530SGrygorii Strashko static int am65_cpsw_nuss_ndev_reg_2g(struct am65_cpsw_common *common) 193293a76530SGrygorii Strashko { 193393a76530SGrygorii Strashko struct device *dev = common->dev; 193493a76530SGrygorii Strashko struct am65_cpsw_port *port; 193593a76530SGrygorii Strashko int ret = 0; 193693a76530SGrygorii Strashko 193793a76530SGrygorii Strashko port = am65_common_get_port(common, 1); 193893a76530SGrygorii Strashko ret = am65_cpsw_nuss_ndev_add_napi_2g(common); 193993a76530SGrygorii Strashko if (ret) 194093a76530SGrygorii Strashko goto err; 194193a76530SGrygorii Strashko 194293a76530SGrygorii Strashko ret = devm_request_irq(dev, common->rx_chns.irq, 194393a76530SGrygorii Strashko am65_cpsw_nuss_rx_irq, 19446f5c27f9SGrygorii Strashko IRQF_TRIGGER_HIGH, dev_name(dev), common); 194593a76530SGrygorii Strashko if (ret) { 194693a76530SGrygorii Strashko dev_err(dev, "failure requesting rx irq %u, %d\n", 194793a76530SGrygorii Strashko common->rx_chns.irq, ret); 194893a76530SGrygorii Strashko goto err; 194993a76530SGrygorii Strashko } 195093a76530SGrygorii Strashko 195193a76530SGrygorii Strashko ret = register_netdev(port->ndev); 195293a76530SGrygorii Strashko if (ret) 195393a76530SGrygorii Strashko dev_err(dev, "error registering slave net device %d\n", ret); 195493a76530SGrygorii Strashko 195593a76530SGrygorii Strashko /* can't auto unregister ndev using devm_add_action() due to 195693a76530SGrygorii Strashko * devres release sequence in DD core for DMA 195793a76530SGrygorii Strashko */ 195893a76530SGrygorii Strashko err: 195993a76530SGrygorii Strashko return ret; 196093a76530SGrygorii Strashko } 196193a76530SGrygorii Strashko 196293a76530SGrygorii Strashko int am65_cpsw_nuss_update_tx_chns(struct am65_cpsw_common *common, int num_tx) 196393a76530SGrygorii Strashko { 196493a76530SGrygorii Strashko int ret; 196593a76530SGrygorii Strashko 196693a76530SGrygorii Strashko common->tx_ch_num = num_tx; 196793a76530SGrygorii Strashko ret = am65_cpsw_nuss_init_tx_chns(common); 196893a76530SGrygorii Strashko if (ret) 196993a76530SGrygorii Strashko return ret; 197093a76530SGrygorii Strashko 197193a76530SGrygorii Strashko return am65_cpsw_nuss_ndev_add_napi_2g(common); 197293a76530SGrygorii Strashko } 197393a76530SGrygorii Strashko 197493a76530SGrygorii Strashko static void am65_cpsw_nuss_cleanup_ndev(struct am65_cpsw_common *common) 197593a76530SGrygorii Strashko { 197693a76530SGrygorii Strashko struct am65_cpsw_port *port; 197793a76530SGrygorii Strashko int i; 197893a76530SGrygorii Strashko 197993a76530SGrygorii Strashko for (i = 0; i < common->port_num; i++) { 198093a76530SGrygorii Strashko port = &common->ports[i]; 198193a76530SGrygorii Strashko if (port->ndev) 198293a76530SGrygorii Strashko unregister_netdev(port->ndev); 198393a76530SGrygorii Strashko } 198493a76530SGrygorii Strashko } 198593a76530SGrygorii Strashko 198638389aa6SGrygorii Strashko struct am65_cpsw_soc_pdata { 198738389aa6SGrygorii Strashko u32 quirks_dis; 198838389aa6SGrygorii Strashko }; 198938389aa6SGrygorii Strashko 199038389aa6SGrygorii Strashko static const struct am65_cpsw_soc_pdata am65x_soc_sr2_0 = { 199138389aa6SGrygorii Strashko .quirks_dis = AM65_CPSW_QUIRK_I2027_NO_TX_CSUM, 199238389aa6SGrygorii Strashko }; 199338389aa6SGrygorii Strashko 199438389aa6SGrygorii Strashko static const struct soc_device_attribute am65_cpsw_socinfo[] = { 199538389aa6SGrygorii Strashko { .family = "AM65X", 199638389aa6SGrygorii Strashko .revision = "SR2.0", 199738389aa6SGrygorii Strashko .data = &am65x_soc_sr2_0 199838389aa6SGrygorii Strashko }, 199938389aa6SGrygorii Strashko {/* sentinel */} 200038389aa6SGrygorii Strashko }; 200138389aa6SGrygorii Strashko 200293a76530SGrygorii Strashko static const struct am65_cpsw_pdata am65x_sr1_0 = { 200393a76530SGrygorii Strashko .quirks = AM65_CPSW_QUIRK_I2027_NO_TX_CSUM, 200493a76530SGrygorii Strashko }; 200593a76530SGrygorii Strashko 200638389aa6SGrygorii Strashko static const struct am65_cpsw_pdata j721e_pdata = { 200793a76530SGrygorii Strashko .quirks = 0, 200893a76530SGrygorii Strashko }; 200993a76530SGrygorii Strashko 201093a76530SGrygorii Strashko static const struct of_device_id am65_cpsw_nuss_of_mtable[] = { 201193a76530SGrygorii Strashko { .compatible = "ti,am654-cpsw-nuss", .data = &am65x_sr1_0}, 201238389aa6SGrygorii Strashko { .compatible = "ti,j721e-cpsw-nuss", .data = &j721e_pdata}, 201393a76530SGrygorii Strashko { /* sentinel */ }, 201493a76530SGrygorii Strashko }; 201593a76530SGrygorii Strashko MODULE_DEVICE_TABLE(of, am65_cpsw_nuss_of_mtable); 201693a76530SGrygorii Strashko 201738389aa6SGrygorii Strashko static void am65_cpsw_nuss_apply_socinfo(struct am65_cpsw_common *common) 201838389aa6SGrygorii Strashko { 201938389aa6SGrygorii Strashko const struct soc_device_attribute *soc; 202038389aa6SGrygorii Strashko 202138389aa6SGrygorii Strashko soc = soc_device_match(am65_cpsw_socinfo); 202238389aa6SGrygorii Strashko if (soc && soc->data) { 202338389aa6SGrygorii Strashko const struct am65_cpsw_soc_pdata *socdata = soc->data; 202438389aa6SGrygorii Strashko 202538389aa6SGrygorii Strashko /* disable quirks */ 202638389aa6SGrygorii Strashko common->pdata.quirks &= ~socdata->quirks_dis; 202738389aa6SGrygorii Strashko } 202838389aa6SGrygorii Strashko } 202938389aa6SGrygorii Strashko 203093a76530SGrygorii Strashko static int am65_cpsw_nuss_probe(struct platform_device *pdev) 203193a76530SGrygorii Strashko { 20322074f9eaSGrygorii Strashko struct cpsw_ale_params ale_params = { 0 }; 203393a76530SGrygorii Strashko const struct of_device_id *of_id; 203493a76530SGrygorii Strashko struct device *dev = &pdev->dev; 203593a76530SGrygorii Strashko struct am65_cpsw_common *common; 203693a76530SGrygorii Strashko struct device_node *node; 203793a76530SGrygorii Strashko struct resource *res; 203893a76530SGrygorii Strashko int ret, i; 203993a76530SGrygorii Strashko 204093a76530SGrygorii Strashko common = devm_kzalloc(dev, sizeof(struct am65_cpsw_common), GFP_KERNEL); 204193a76530SGrygorii Strashko if (!common) 204293a76530SGrygorii Strashko return -ENOMEM; 204393a76530SGrygorii Strashko common->dev = dev; 204493a76530SGrygorii Strashko 204593a76530SGrygorii Strashko of_id = of_match_device(am65_cpsw_nuss_of_mtable, dev); 204693a76530SGrygorii Strashko if (!of_id) 204793a76530SGrygorii Strashko return -EINVAL; 204838389aa6SGrygorii Strashko common->pdata = *(const struct am65_cpsw_pdata *)of_id->data; 204938389aa6SGrygorii Strashko 205038389aa6SGrygorii Strashko am65_cpsw_nuss_apply_socinfo(common); 205193a76530SGrygorii Strashko 205293a76530SGrygorii Strashko res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "cpsw_nuss"); 205393a76530SGrygorii Strashko common->ss_base = devm_ioremap_resource(&pdev->dev, res); 205493a76530SGrygorii Strashko if (IS_ERR(common->ss_base)) 205593a76530SGrygorii Strashko return PTR_ERR(common->ss_base); 205693a76530SGrygorii Strashko common->cpsw_base = common->ss_base + AM65_CPSW_CPSW_NU_BASE; 205793a76530SGrygorii Strashko 205893a76530SGrygorii Strashko node = of_get_child_by_name(dev->of_node, "ethernet-ports"); 205993a76530SGrygorii Strashko if (!node) 206093a76530SGrygorii Strashko return -ENOENT; 206193a76530SGrygorii Strashko common->port_num = of_get_child_count(node); 206293a76530SGrygorii Strashko if (common->port_num < 1 || common->port_num > AM65_CPSW_MAX_PORTS) 206393a76530SGrygorii Strashko return -ENOENT; 206493a76530SGrygorii Strashko of_node_put(node); 206593a76530SGrygorii Strashko 206693a76530SGrygorii Strashko if (common->port_num != 1) 206793a76530SGrygorii Strashko return -EOPNOTSUPP; 206893a76530SGrygorii Strashko 206993a76530SGrygorii Strashko common->rx_flow_id_base = -1; 207093a76530SGrygorii Strashko init_completion(&common->tdown_complete); 207193a76530SGrygorii Strashko common->tx_ch_num = 1; 207251824048SGrygorii Strashko common->pf_p0_rx_ptype_rrobin = false; 207393a76530SGrygorii Strashko 207493a76530SGrygorii Strashko ret = dma_coerce_mask_and_coherent(dev, DMA_BIT_MASK(48)); 207593a76530SGrygorii Strashko if (ret) { 207693a76530SGrygorii Strashko dev_err(dev, "error setting dma mask: %d\n", ret); 207793a76530SGrygorii Strashko return ret; 207893a76530SGrygorii Strashko } 207993a76530SGrygorii Strashko 208093a76530SGrygorii Strashko common->ports = devm_kcalloc(dev, common->port_num, 208193a76530SGrygorii Strashko sizeof(*common->ports), 208293a76530SGrygorii Strashko GFP_KERNEL); 208393a76530SGrygorii Strashko if (!common->ports) 208493a76530SGrygorii Strashko return -ENOMEM; 208593a76530SGrygorii Strashko 208693a76530SGrygorii Strashko pm_runtime_enable(dev); 208793a76530SGrygorii Strashko ret = pm_runtime_get_sync(dev); 208893a76530SGrygorii Strashko if (ret < 0) { 208993a76530SGrygorii Strashko pm_runtime_put_noidle(dev); 209093a76530SGrygorii Strashko pm_runtime_disable(dev); 209193a76530SGrygorii Strashko return ret; 209293a76530SGrygorii Strashko } 209393a76530SGrygorii Strashko 2094a45cfcc6SGrygorii Strashko node = of_get_child_by_name(dev->of_node, "mdio"); 2095a45cfcc6SGrygorii Strashko if (!node) { 2096a45cfcc6SGrygorii Strashko dev_warn(dev, "MDIO node not found\n"); 2097a45cfcc6SGrygorii Strashko } else if (of_device_is_available(node)) { 2098a45cfcc6SGrygorii Strashko struct platform_device *mdio_pdev; 2099a45cfcc6SGrygorii Strashko 2100a45cfcc6SGrygorii Strashko mdio_pdev = of_platform_device_create(node, NULL, dev); 2101a45cfcc6SGrygorii Strashko if (!mdio_pdev) { 2102a45cfcc6SGrygorii Strashko ret = -ENODEV; 2103a45cfcc6SGrygorii Strashko goto err_pm_clear; 2104a45cfcc6SGrygorii Strashko } 2105a45cfcc6SGrygorii Strashko 2106a45cfcc6SGrygorii Strashko common->mdio_dev = &mdio_pdev->dev; 2107a45cfcc6SGrygorii Strashko } 2108a45cfcc6SGrygorii Strashko of_node_put(node); 210993a76530SGrygorii Strashko 211093a76530SGrygorii Strashko am65_cpsw_nuss_get_ver(common); 211193a76530SGrygorii Strashko 211293a76530SGrygorii Strashko /* init tx channels */ 211393a76530SGrygorii Strashko ret = am65_cpsw_nuss_init_tx_chns(common); 211493a76530SGrygorii Strashko if (ret) 211593a76530SGrygorii Strashko goto err_of_clear; 211693a76530SGrygorii Strashko ret = am65_cpsw_nuss_init_rx_chns(common); 211793a76530SGrygorii Strashko if (ret) 211893a76530SGrygorii Strashko goto err_of_clear; 211993a76530SGrygorii Strashko 212093a76530SGrygorii Strashko ret = am65_cpsw_nuss_init_host_p(common); 212193a76530SGrygorii Strashko if (ret) 212293a76530SGrygorii Strashko goto err_of_clear; 212393a76530SGrygorii Strashko 212493a76530SGrygorii Strashko ret = am65_cpsw_nuss_init_slave_ports(common); 212593a76530SGrygorii Strashko if (ret) 212693a76530SGrygorii Strashko goto err_of_clear; 212793a76530SGrygorii Strashko 212893a76530SGrygorii Strashko /* init common data */ 212993a76530SGrygorii Strashko ale_params.dev = dev; 213093a76530SGrygorii Strashko ale_params.ale_ageout = AM65_CPSW_ALE_AGEOUT_DEFAULT; 213193a76530SGrygorii Strashko ale_params.ale_entries = 0; 213293a76530SGrygorii Strashko ale_params.ale_ports = common->port_num + 1; 213393a76530SGrygorii Strashko ale_params.ale_regs = common->cpsw_base + AM65_CPSW_NU_ALE_BASE; 213493a76530SGrygorii Strashko ale_params.nu_switch_ale = true; 213593a76530SGrygorii Strashko 213693a76530SGrygorii Strashko common->ale = cpsw_ale_create(&ale_params); 21371401cf60SWei Yongjun if (IS_ERR(common->ale)) { 213893a76530SGrygorii Strashko dev_err(dev, "error initializing ale engine\n"); 21391401cf60SWei Yongjun ret = PTR_ERR(common->ale); 214093a76530SGrygorii Strashko goto err_of_clear; 214193a76530SGrygorii Strashko } 214293a76530SGrygorii Strashko 2143b1f66a5bSGrygorii Strashko ret = am65_cpsw_init_cpts(common); 2144b1f66a5bSGrygorii Strashko if (ret) 2145b1f66a5bSGrygorii Strashko goto err_of_clear; 2146b1f66a5bSGrygorii Strashko 214793a76530SGrygorii Strashko /* init ports */ 214893a76530SGrygorii Strashko for (i = 0; i < common->port_num; i++) 214993a76530SGrygorii Strashko am65_cpsw_nuss_slave_disable_unused(&common->ports[i]); 215093a76530SGrygorii Strashko 215193a76530SGrygorii Strashko dev_set_drvdata(dev, common); 215293a76530SGrygorii Strashko 215393a76530SGrygorii Strashko ret = am65_cpsw_nuss_init_ndev_2g(common); 215493a76530SGrygorii Strashko if (ret) 215593a76530SGrygorii Strashko goto err_of_clear; 215693a76530SGrygorii Strashko 215793a76530SGrygorii Strashko ret = am65_cpsw_nuss_ndev_reg_2g(common); 215893a76530SGrygorii Strashko if (ret) 215993a76530SGrygorii Strashko goto err_of_clear; 216093a76530SGrygorii Strashko 216193a76530SGrygorii Strashko pm_runtime_put(dev); 216293a76530SGrygorii Strashko return 0; 216393a76530SGrygorii Strashko 216493a76530SGrygorii Strashko err_of_clear: 2165a45cfcc6SGrygorii Strashko of_platform_device_destroy(common->mdio_dev, NULL); 2166a45cfcc6SGrygorii Strashko err_pm_clear: 216793a76530SGrygorii Strashko pm_runtime_put_sync(dev); 216893a76530SGrygorii Strashko pm_runtime_disable(dev); 216993a76530SGrygorii Strashko return ret; 217093a76530SGrygorii Strashko } 217193a76530SGrygorii Strashko 217293a76530SGrygorii Strashko static int am65_cpsw_nuss_remove(struct platform_device *pdev) 217393a76530SGrygorii Strashko { 217493a76530SGrygorii Strashko struct device *dev = &pdev->dev; 217593a76530SGrygorii Strashko struct am65_cpsw_common *common; 217693a76530SGrygorii Strashko int ret; 217793a76530SGrygorii Strashko 217893a76530SGrygorii Strashko common = dev_get_drvdata(dev); 217993a76530SGrygorii Strashko 218093a76530SGrygorii Strashko ret = pm_runtime_get_sync(&pdev->dev); 218193a76530SGrygorii Strashko if (ret < 0) { 218293a76530SGrygorii Strashko pm_runtime_put_noidle(&pdev->dev); 218393a76530SGrygorii Strashko return ret; 218493a76530SGrygorii Strashko } 218593a76530SGrygorii Strashko 218693a76530SGrygorii Strashko /* must unregister ndevs here because DD release_driver routine calls 218793a76530SGrygorii Strashko * dma_deconfigure(dev) before devres_release_all(dev) 218893a76530SGrygorii Strashko */ 218993a76530SGrygorii Strashko am65_cpsw_nuss_cleanup_ndev(common); 219093a76530SGrygorii Strashko 2191a45cfcc6SGrygorii Strashko of_platform_device_destroy(common->mdio_dev, NULL); 219293a76530SGrygorii Strashko 219393a76530SGrygorii Strashko pm_runtime_put_sync(&pdev->dev); 219493a76530SGrygorii Strashko pm_runtime_disable(&pdev->dev); 219593a76530SGrygorii Strashko return 0; 219693a76530SGrygorii Strashko } 219793a76530SGrygorii Strashko 219893a76530SGrygorii Strashko static struct platform_driver am65_cpsw_nuss_driver = { 219993a76530SGrygorii Strashko .driver = { 220093a76530SGrygorii Strashko .name = AM65_CPSW_DRV_NAME, 220193a76530SGrygorii Strashko .of_match_table = am65_cpsw_nuss_of_mtable, 220293a76530SGrygorii Strashko }, 220393a76530SGrygorii Strashko .probe = am65_cpsw_nuss_probe, 220493a76530SGrygorii Strashko .remove = am65_cpsw_nuss_remove, 220593a76530SGrygorii Strashko }; 220693a76530SGrygorii Strashko 220793a76530SGrygorii Strashko module_platform_driver(am65_cpsw_nuss_driver); 220893a76530SGrygorii Strashko 220993a76530SGrygorii Strashko MODULE_LICENSE("GPL v2"); 221093a76530SGrygorii Strashko MODULE_AUTHOR("Grygorii Strashko <grygorii.strashko@ti.com>"); 221193a76530SGrygorii Strashko MODULE_DESCRIPTION("TI AM65 CPSW Ethernet driver"); 2212