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 823015ff1SGrygorii Strashko #include <linux/clk.h> 993a76530SGrygorii Strashko #include <linux/etherdevice.h> 1093a76530SGrygorii Strashko #include <linux/if_vlan.h> 1193a76530SGrygorii Strashko #include <linux/interrupt.h> 120b718007SSiddharth Vadapalli #include <linux/irqdomain.h> 1393a76530SGrygorii Strashko #include <linux/kernel.h> 1493a76530SGrygorii Strashko #include <linux/kmemleak.h> 1593a76530SGrygorii Strashko #include <linux/module.h> 1693a76530SGrygorii Strashko #include <linux/netdevice.h> 1793a76530SGrygorii Strashko #include <linux/net_tstamp.h> 1893a76530SGrygorii Strashko #include <linux/of.h> 1993a76530SGrygorii Strashko #include <linux/of_mdio.h> 2093a76530SGrygorii Strashko #include <linux/of_net.h> 2193a76530SGrygorii Strashko #include <linux/of_device.h> 22e8609e69SSiddharth Vadapalli #include <linux/phylink.h> 2393a76530SGrygorii Strashko #include <linux/phy/phy.h> 2493a76530SGrygorii Strashko #include <linux/platform_device.h> 2593a76530SGrygorii Strashko #include <linux/pm_runtime.h> 2693a76530SGrygorii Strashko #include <linux/regmap.h> 2793a76530SGrygorii Strashko #include <linux/mfd/syscon.h> 2838389aa6SGrygorii Strashko #include <linux/sys_soc.h> 2993a76530SGrygorii Strashko #include <linux/dma/ti-cppi5.h> 3093a76530SGrygorii Strashko #include <linux/dma/k3-udma-glue.h> 31957e2235SVladimir Oltean #include <net/switchdev.h> 3293a76530SGrygorii Strashko 3393a76530SGrygorii Strashko #include "cpsw_ale.h" 3493a76530SGrygorii Strashko #include "cpsw_sl.h" 3593a76530SGrygorii Strashko #include "am65-cpsw-nuss.h" 3686e8b070SVignesh Raghavendra #include "am65-cpsw-switchdev.h" 3793a76530SGrygorii Strashko #include "k3-cppi-desc-pool.h" 38b1f66a5bSGrygorii Strashko #include "am65-cpts.h" 3993a76530SGrygorii Strashko 4093a76530SGrygorii Strashko #define AM65_CPSW_SS_BASE 0x0 4193a76530SGrygorii Strashko #define AM65_CPSW_SGMII_BASE 0x100 4293a76530SGrygorii Strashko #define AM65_CPSW_XGMII_BASE 0x2100 4393a76530SGrygorii Strashko #define AM65_CPSW_CPSW_NU_BASE 0x20000 4493a76530SGrygorii Strashko #define AM65_CPSW_NU_PORTS_BASE 0x1000 458127224cSIvan Khoronzhuk #define AM65_CPSW_NU_FRAM_BASE 0x12000 4693a76530SGrygorii Strashko #define AM65_CPSW_NU_STATS_BASE 0x1a000 4793a76530SGrygorii Strashko #define AM65_CPSW_NU_ALE_BASE 0x1e000 4893a76530SGrygorii Strashko #define AM65_CPSW_NU_CPTS_BASE 0x1d000 4993a76530SGrygorii Strashko 5093a76530SGrygorii Strashko #define AM65_CPSW_NU_PORTS_OFFSET 0x1000 5193a76530SGrygorii Strashko #define AM65_CPSW_NU_STATS_PORT_OFFSET 0x200 528127224cSIvan Khoronzhuk #define AM65_CPSW_NU_FRAM_PORT_OFFSET 0x200 5393a76530SGrygorii Strashko 5493a76530SGrygorii Strashko #define AM65_CPSW_MAX_PORTS 8 5593a76530SGrygorii Strashko 5693a76530SGrygorii Strashko #define AM65_CPSW_MIN_PACKET_SIZE VLAN_ETH_ZLEN 5793a76530SGrygorii Strashko #define AM65_CPSW_MAX_PACKET_SIZE (VLAN_ETH_FRAME_LEN + ETH_FCS_LEN) 5893a76530SGrygorii Strashko 5993a76530SGrygorii Strashko #define AM65_CPSW_REG_CTL 0x004 6093a76530SGrygorii Strashko #define AM65_CPSW_REG_STAT_PORT_EN 0x014 6193a76530SGrygorii Strashko #define AM65_CPSW_REG_PTYPE 0x018 6293a76530SGrygorii Strashko 6393a76530SGrygorii Strashko #define AM65_CPSW_P0_REG_CTL 0x004 6493a76530SGrygorii Strashko #define AM65_CPSW_PORT0_REG_FLOW_ID_OFFSET 0x008 6593a76530SGrygorii Strashko 6693a76530SGrygorii Strashko #define AM65_CPSW_PORT_REG_PRI_CTL 0x01c 6793a76530SGrygorii Strashko #define AM65_CPSW_PORT_REG_RX_PRI_MAP 0x020 6893a76530SGrygorii Strashko #define AM65_CPSW_PORT_REG_RX_MAXLEN 0x024 6993a76530SGrygorii Strashko 7093a76530SGrygorii Strashko #define AM65_CPSW_PORTN_REG_SA_L 0x308 7193a76530SGrygorii Strashko #define AM65_CPSW_PORTN_REG_SA_H 0x30c 7293a76530SGrygorii Strashko #define AM65_CPSW_PORTN_REG_TS_CTL 0x310 7393a76530SGrygorii Strashko #define AM65_CPSW_PORTN_REG_TS_SEQ_LTYPE_REG 0x314 7493a76530SGrygorii Strashko #define AM65_CPSW_PORTN_REG_TS_VLAN_LTYPE_REG 0x318 7593a76530SGrygorii Strashko #define AM65_CPSW_PORTN_REG_TS_CTL_LTYPE2 0x31C 7693a76530SGrygorii Strashko 7737184fc1SSiddharth Vadapalli #define AM65_CPSW_SGMII_CONTROL_REG 0x010 7837184fc1SSiddharth Vadapalli #define AM65_CPSW_SGMII_CONTROL_MR_AN_ENABLE BIT(0) 7937184fc1SSiddharth Vadapalli 8093a76530SGrygorii Strashko #define AM65_CPSW_CTL_VLAN_AWARE BIT(1) 8193a76530SGrygorii Strashko #define AM65_CPSW_CTL_P0_ENABLE BIT(2) 8293a76530SGrygorii Strashko #define AM65_CPSW_CTL_P0_TX_CRC_REMOVE BIT(13) 8393a76530SGrygorii Strashko #define AM65_CPSW_CTL_P0_RX_PAD BIT(14) 8493a76530SGrygorii Strashko 8593a76530SGrygorii Strashko /* AM65_CPSW_P0_REG_CTL */ 8693a76530SGrygorii Strashko #define AM65_CPSW_P0_REG_CTL_RX_CHECKSUM_EN BIT(0) 8793a76530SGrygorii Strashko 8893a76530SGrygorii Strashko /* AM65_CPSW_PORT_REG_PRI_CTL */ 8993a76530SGrygorii Strashko #define AM65_CPSW_PORT_REG_PRI_CTL_RX_PTYPE_RROBIN BIT(8) 9093a76530SGrygorii Strashko 9193a76530SGrygorii Strashko /* AM65_CPSW_PN_TS_CTL register fields */ 9293a76530SGrygorii Strashko #define AM65_CPSW_PN_TS_CTL_TX_ANX_F_EN BIT(4) 9393a76530SGrygorii Strashko #define AM65_CPSW_PN_TS_CTL_TX_VLAN_LT1_EN BIT(5) 9493a76530SGrygorii Strashko #define AM65_CPSW_PN_TS_CTL_TX_VLAN_LT2_EN BIT(6) 9593a76530SGrygorii Strashko #define AM65_CPSW_PN_TS_CTL_TX_ANX_D_EN BIT(7) 9693a76530SGrygorii Strashko #define AM65_CPSW_PN_TS_CTL_TX_ANX_E_EN BIT(10) 9793a76530SGrygorii Strashko #define AM65_CPSW_PN_TS_CTL_TX_HOST_TS_EN BIT(11) 9893a76530SGrygorii Strashko #define AM65_CPSW_PN_TS_CTL_MSG_TYPE_EN_SHIFT 16 9993a76530SGrygorii Strashko 10093a76530SGrygorii Strashko /* AM65_CPSW_PORTN_REG_TS_SEQ_LTYPE_REG register fields */ 10193a76530SGrygorii Strashko #define AM65_CPSW_PN_TS_SEQ_ID_OFFSET_SHIFT 16 10293a76530SGrygorii Strashko 10393a76530SGrygorii Strashko /* AM65_CPSW_PORTN_REG_TS_CTL_LTYPE2 */ 10493a76530SGrygorii Strashko #define AM65_CPSW_PN_TS_CTL_LTYPE2_TS_107 BIT(16) 10593a76530SGrygorii Strashko #define AM65_CPSW_PN_TS_CTL_LTYPE2_TS_129 BIT(17) 10693a76530SGrygorii Strashko #define AM65_CPSW_PN_TS_CTL_LTYPE2_TS_130 BIT(18) 10793a76530SGrygorii Strashko #define AM65_CPSW_PN_TS_CTL_LTYPE2_TS_131 BIT(19) 10893a76530SGrygorii Strashko #define AM65_CPSW_PN_TS_CTL_LTYPE2_TS_132 BIT(20) 10993a76530SGrygorii Strashko #define AM65_CPSW_PN_TS_CTL_LTYPE2_TS_319 BIT(21) 11093a76530SGrygorii Strashko #define AM65_CPSW_PN_TS_CTL_LTYPE2_TS_320 BIT(22) 11193a76530SGrygorii Strashko #define AM65_CPSW_PN_TS_CTL_LTYPE2_TS_TTL_NONZERO BIT(23) 11293a76530SGrygorii Strashko 11393a76530SGrygorii Strashko /* The PTP event messages - Sync, Delay_Req, Pdelay_Req, and Pdelay_Resp. */ 11493a76530SGrygorii Strashko #define AM65_CPSW_TS_EVENT_MSG_TYPE_BITS (BIT(0) | BIT(1) | BIT(2) | BIT(3)) 11593a76530SGrygorii Strashko 11693a76530SGrygorii Strashko #define AM65_CPSW_TS_SEQ_ID_OFFSET (0x1e) 11793a76530SGrygorii Strashko 11893a76530SGrygorii Strashko #define AM65_CPSW_TS_TX_ANX_ALL_EN \ 11993a76530SGrygorii Strashko (AM65_CPSW_PN_TS_CTL_TX_ANX_D_EN | \ 12093a76530SGrygorii Strashko AM65_CPSW_PN_TS_CTL_TX_ANX_E_EN | \ 12193a76530SGrygorii Strashko AM65_CPSW_PN_TS_CTL_TX_ANX_F_EN) 12293a76530SGrygorii Strashko 12393a76530SGrygorii Strashko #define AM65_CPSW_ALE_AGEOUT_DEFAULT 30 12493a76530SGrygorii Strashko /* Number of TX/RX descriptors */ 12593a76530SGrygorii Strashko #define AM65_CPSW_MAX_TX_DESC 500 12693a76530SGrygorii Strashko #define AM65_CPSW_MAX_RX_DESC 500 12793a76530SGrygorii Strashko 12893a76530SGrygorii Strashko #define AM65_CPSW_NAV_PS_DATA_SIZE 16 12993a76530SGrygorii Strashko #define AM65_CPSW_NAV_SW_DATA_SIZE 16 13093a76530SGrygorii Strashko 13193a76530SGrygorii Strashko #define AM65_CPSW_DEBUG (NETIF_MSG_HW | NETIF_MSG_DRV | NETIF_MSG_LINK | \ 13293a76530SGrygorii Strashko NETIF_MSG_IFUP | NETIF_MSG_PROBE | NETIF_MSG_IFDOWN | \ 13393a76530SGrygorii Strashko NETIF_MSG_RX_ERR | NETIF_MSG_TX_ERR) 13493a76530SGrygorii Strashko 13593a76530SGrygorii Strashko static void am65_cpsw_port_set_sl_mac(struct am65_cpsw_port *slave, 13693a76530SGrygorii Strashko const u8 *dev_addr) 13793a76530SGrygorii Strashko { 13893a76530SGrygorii Strashko u32 mac_hi = (dev_addr[0] << 0) | (dev_addr[1] << 8) | 13993a76530SGrygorii Strashko (dev_addr[2] << 16) | (dev_addr[3] << 24); 14093a76530SGrygorii Strashko u32 mac_lo = (dev_addr[4] << 0) | (dev_addr[5] << 8); 14193a76530SGrygorii Strashko 14293a76530SGrygorii Strashko writel(mac_hi, slave->port_base + AM65_CPSW_PORTN_REG_SA_H); 14393a76530SGrygorii Strashko writel(mac_lo, slave->port_base + AM65_CPSW_PORTN_REG_SA_L); 14493a76530SGrygorii Strashko } 14593a76530SGrygorii Strashko 14693a76530SGrygorii Strashko static void am65_cpsw_sl_ctl_reset(struct am65_cpsw_port *port) 14793a76530SGrygorii Strashko { 14893a76530SGrygorii Strashko cpsw_sl_reset(port->slave.mac_sl, 100); 14993a76530SGrygorii Strashko /* Max length register has to be restored after MAC SL reset */ 15093a76530SGrygorii Strashko writel(AM65_CPSW_MAX_PACKET_SIZE, 15193a76530SGrygorii Strashko port->port_base + AM65_CPSW_PORT_REG_RX_MAXLEN); 15293a76530SGrygorii Strashko } 15393a76530SGrygorii Strashko 15493a76530SGrygorii Strashko static void am65_cpsw_nuss_get_ver(struct am65_cpsw_common *common) 15593a76530SGrygorii Strashko { 15693a76530SGrygorii Strashko common->nuss_ver = readl(common->ss_base); 15793a76530SGrygorii Strashko common->cpsw_ver = readl(common->cpsw_base); 15893a76530SGrygorii Strashko dev_info(common->dev, 15938389aa6SGrygorii Strashko "initializing am65 cpsw nuss version 0x%08X, cpsw version 0x%08X Ports: %u quirks:%08x\n", 16093a76530SGrygorii Strashko common->nuss_ver, 16193a76530SGrygorii Strashko common->cpsw_ver, 16238389aa6SGrygorii Strashko common->port_num + 1, 16338389aa6SGrygorii Strashko common->pdata.quirks); 16493a76530SGrygorii Strashko } 16593a76530SGrygorii Strashko 16693a76530SGrygorii Strashko static int am65_cpsw_nuss_ndo_slave_add_vid(struct net_device *ndev, 16793a76530SGrygorii Strashko __be16 proto, u16 vid) 16893a76530SGrygorii Strashko { 16993a76530SGrygorii Strashko struct am65_cpsw_common *common = am65_ndev_to_common(ndev); 17093a76530SGrygorii Strashko struct am65_cpsw_port *port = am65_ndev_to_port(ndev); 17193a76530SGrygorii Strashko u32 port_mask, unreg_mcast = 0; 17293a76530SGrygorii Strashko int ret; 17393a76530SGrygorii Strashko 17486e8b070SVignesh Raghavendra if (!common->is_emac_mode) 17586e8b070SVignesh Raghavendra return 0; 17686e8b070SVignesh Raghavendra 1777bcffde0SGrygorii Strashko if (!netif_running(ndev) || !vid) 1787bcffde0SGrygorii Strashko return 0; 1797bcffde0SGrygorii Strashko 1802240514cSMinghao Chi ret = pm_runtime_resume_and_get(common->dev); 1812240514cSMinghao Chi if (ret < 0) 18293a76530SGrygorii Strashko return ret; 18393a76530SGrygorii Strashko 18493a76530SGrygorii Strashko port_mask = BIT(port->port_id) | ALE_PORT_HOST; 18593a76530SGrygorii Strashko if (!vid) 18693a76530SGrygorii Strashko unreg_mcast = port_mask; 18793a76530SGrygorii Strashko dev_info(common->dev, "Adding vlan %d to vlan filter\n", vid); 1882d64a034SGrygorii Strashko ret = cpsw_ale_vlan_add_modify(common->ale, vid, port_mask, 18993a76530SGrygorii Strashko unreg_mcast, port_mask, 0); 19093a76530SGrygorii Strashko 19193a76530SGrygorii Strashko pm_runtime_put(common->dev); 19293a76530SGrygorii Strashko return ret; 19393a76530SGrygorii Strashko } 19493a76530SGrygorii Strashko 19593a76530SGrygorii Strashko static int am65_cpsw_nuss_ndo_slave_kill_vid(struct net_device *ndev, 19693a76530SGrygorii Strashko __be16 proto, u16 vid) 19793a76530SGrygorii Strashko { 19893a76530SGrygorii Strashko struct am65_cpsw_common *common = am65_ndev_to_common(ndev); 1992d64a034SGrygorii Strashko struct am65_cpsw_port *port = am65_ndev_to_port(ndev); 20093a76530SGrygorii Strashko int ret; 20193a76530SGrygorii Strashko 20286e8b070SVignesh Raghavendra if (!common->is_emac_mode) 20386e8b070SVignesh Raghavendra return 0; 20486e8b070SVignesh Raghavendra 2057bcffde0SGrygorii Strashko if (!netif_running(ndev) || !vid) 2067bcffde0SGrygorii Strashko return 0; 2077bcffde0SGrygorii Strashko 2082240514cSMinghao Chi ret = pm_runtime_resume_and_get(common->dev); 2092240514cSMinghao Chi if (ret < 0) 21093a76530SGrygorii Strashko return ret; 21193a76530SGrygorii Strashko 21293a76530SGrygorii Strashko dev_info(common->dev, "Removing vlan %d from vlan filter\n", vid); 2132d64a034SGrygorii Strashko ret = cpsw_ale_del_vlan(common->ale, vid, 2142d64a034SGrygorii Strashko BIT(port->port_id) | ALE_PORT_HOST); 21593a76530SGrygorii Strashko 21693a76530SGrygorii Strashko pm_runtime_put(common->dev); 21793a76530SGrygorii Strashko return ret; 21893a76530SGrygorii Strashko } 21993a76530SGrygorii Strashko 22084b4aa49SGrygorii Strashko static void am65_cpsw_slave_set_promisc(struct am65_cpsw_port *port, 22193a76530SGrygorii Strashko bool promisc) 22293a76530SGrygorii Strashko { 22393a76530SGrygorii Strashko struct am65_cpsw_common *common = port->common; 22493a76530SGrygorii Strashko 22586e8b070SVignesh Raghavendra if (promisc && !common->is_emac_mode) { 22686e8b070SVignesh Raghavendra dev_dbg(common->dev, "promisc mode requested in switch mode"); 22786e8b070SVignesh Raghavendra return; 22886e8b070SVignesh Raghavendra } 22986e8b070SVignesh Raghavendra 23093a76530SGrygorii Strashko if (promisc) { 23193a76530SGrygorii Strashko /* Enable promiscuous mode */ 23293a76530SGrygorii Strashko cpsw_ale_control_set(common->ale, port->port_id, 23393a76530SGrygorii Strashko ALE_PORT_MACONLY_CAF, 1); 23493a76530SGrygorii Strashko dev_dbg(common->dev, "promisc enabled\n"); 23593a76530SGrygorii Strashko } else { 23693a76530SGrygorii Strashko /* Disable promiscuous mode */ 23793a76530SGrygorii Strashko cpsw_ale_control_set(common->ale, port->port_id, 23893a76530SGrygorii Strashko ALE_PORT_MACONLY_CAF, 0); 23993a76530SGrygorii Strashko dev_dbg(common->dev, "promisc disabled\n"); 24093a76530SGrygorii Strashko } 24193a76530SGrygorii Strashko } 24293a76530SGrygorii Strashko 24393a76530SGrygorii Strashko static void am65_cpsw_nuss_ndo_slave_set_rx_mode(struct net_device *ndev) 24493a76530SGrygorii Strashko { 24593a76530SGrygorii Strashko struct am65_cpsw_common *common = am65_ndev_to_common(ndev); 24693a76530SGrygorii Strashko struct am65_cpsw_port *port = am65_ndev_to_port(ndev); 24793a76530SGrygorii Strashko u32 port_mask; 24893a76530SGrygorii Strashko bool promisc; 24993a76530SGrygorii Strashko 25093a76530SGrygorii Strashko promisc = !!(ndev->flags & IFF_PROMISC); 25184b4aa49SGrygorii Strashko am65_cpsw_slave_set_promisc(port, promisc); 25293a76530SGrygorii Strashko 25393a76530SGrygorii Strashko if (promisc) 25493a76530SGrygorii Strashko return; 25593a76530SGrygorii Strashko 25693a76530SGrygorii Strashko /* Restore allmulti on vlans if necessary */ 25793a76530SGrygorii Strashko cpsw_ale_set_allmulti(common->ale, 25893a76530SGrygorii Strashko ndev->flags & IFF_ALLMULTI, port->port_id); 25993a76530SGrygorii Strashko 26093a76530SGrygorii Strashko port_mask = ALE_PORT_HOST; 26193a76530SGrygorii Strashko /* Clear all mcast from ALE */ 26293a76530SGrygorii Strashko cpsw_ale_flush_multicast(common->ale, port_mask, -1); 26393a76530SGrygorii Strashko 26493a76530SGrygorii Strashko if (!netdev_mc_empty(ndev)) { 26593a76530SGrygorii Strashko struct netdev_hw_addr *ha; 26693a76530SGrygorii Strashko 26793a76530SGrygorii Strashko /* program multicast address list into ALE register */ 26893a76530SGrygorii Strashko netdev_for_each_mc_addr(ha, ndev) { 26993a76530SGrygorii Strashko cpsw_ale_add_mcast(common->ale, ha->addr, 27093a76530SGrygorii Strashko port_mask, 0, 0, 0); 27193a76530SGrygorii Strashko } 27293a76530SGrygorii Strashko } 27393a76530SGrygorii Strashko } 27493a76530SGrygorii Strashko 27593a76530SGrygorii Strashko static void am65_cpsw_nuss_ndo_host_tx_timeout(struct net_device *ndev, 27693a76530SGrygorii Strashko unsigned int txqueue) 27793a76530SGrygorii Strashko { 27893a76530SGrygorii Strashko struct am65_cpsw_common *common = am65_ndev_to_common(ndev); 27993a76530SGrygorii Strashko struct am65_cpsw_tx_chn *tx_chn; 28093a76530SGrygorii Strashko struct netdev_queue *netif_txq; 28193a76530SGrygorii Strashko unsigned long trans_start; 28293a76530SGrygorii Strashko 28393a76530SGrygorii Strashko netif_txq = netdev_get_tx_queue(ndev, txqueue); 28493a76530SGrygorii Strashko tx_chn = &common->tx_chns[txqueue]; 2855337824fSEric Dumazet trans_start = READ_ONCE(netif_txq->trans_start); 28693a76530SGrygorii Strashko 28793a76530SGrygorii Strashko netdev_err(ndev, "txq:%d DRV_XOFF:%d tmo:%u dql_avail:%d free_desc:%zu\n", 28893a76530SGrygorii Strashko txqueue, 28993a76530SGrygorii Strashko netif_tx_queue_stopped(netif_txq), 29093a76530SGrygorii Strashko jiffies_to_msecs(jiffies - trans_start), 29193a76530SGrygorii Strashko dql_avail(&netif_txq->dql), 29293a76530SGrygorii Strashko k3_cppi_desc_pool_avail(tx_chn->desc_pool)); 29393a76530SGrygorii Strashko 29493a76530SGrygorii Strashko if (netif_tx_queue_stopped(netif_txq)) { 29593a76530SGrygorii Strashko /* try recover if stopped by us */ 29693a76530SGrygorii Strashko txq_trans_update(netif_txq); 29793a76530SGrygorii Strashko netif_tx_wake_queue(netif_txq); 29893a76530SGrygorii Strashko } 29993a76530SGrygorii Strashko } 30093a76530SGrygorii Strashko 30193a76530SGrygorii Strashko static int am65_cpsw_nuss_rx_push(struct am65_cpsw_common *common, 30293a76530SGrygorii Strashko struct sk_buff *skb) 30393a76530SGrygorii Strashko { 30493a76530SGrygorii Strashko struct am65_cpsw_rx_chn *rx_chn = &common->rx_chns; 30593a76530SGrygorii Strashko struct cppi5_host_desc_t *desc_rx; 30693a76530SGrygorii Strashko struct device *dev = common->dev; 30793a76530SGrygorii Strashko u32 pkt_len = skb_tailroom(skb); 30893a76530SGrygorii Strashko dma_addr_t desc_dma; 30993a76530SGrygorii Strashko dma_addr_t buf_dma; 31093a76530SGrygorii Strashko void *swdata; 31193a76530SGrygorii Strashko 31293a76530SGrygorii Strashko desc_rx = k3_cppi_desc_pool_alloc(rx_chn->desc_pool); 31393a76530SGrygorii Strashko if (!desc_rx) { 31493a76530SGrygorii Strashko dev_err(dev, "Failed to allocate RXFDQ descriptor\n"); 31593a76530SGrygorii Strashko return -ENOMEM; 31693a76530SGrygorii Strashko } 31793a76530SGrygorii Strashko desc_dma = k3_cppi_desc_pool_virt2dma(rx_chn->desc_pool, desc_rx); 31893a76530SGrygorii Strashko 319ed569ed9SPeter Ujfalusi buf_dma = dma_map_single(rx_chn->dma_dev, skb->data, pkt_len, 320ed569ed9SPeter Ujfalusi DMA_FROM_DEVICE); 321ed569ed9SPeter Ujfalusi if (unlikely(dma_mapping_error(rx_chn->dma_dev, buf_dma))) { 32293a76530SGrygorii Strashko k3_cppi_desc_pool_free(rx_chn->desc_pool, desc_rx); 32393a76530SGrygorii Strashko dev_err(dev, "Failed to map rx skb buffer\n"); 32493a76530SGrygorii Strashko return -EINVAL; 32593a76530SGrygorii Strashko } 32693a76530SGrygorii Strashko 32793a76530SGrygorii Strashko cppi5_hdesc_init(desc_rx, CPPI5_INFO0_HDESC_EPIB_PRESENT, 32893a76530SGrygorii Strashko AM65_CPSW_NAV_PS_DATA_SIZE); 32939fd0547SPeter Ujfalusi k3_udma_glue_rx_dma_to_cppi5_addr(rx_chn->rx_chn, &buf_dma); 330a9e60cf0SGrygorii Strashko cppi5_hdesc_attach_buf(desc_rx, buf_dma, skb_tailroom(skb), buf_dma, skb_tailroom(skb)); 33193a76530SGrygorii Strashko swdata = cppi5_hdesc_get_swdata(desc_rx); 33293a76530SGrygorii Strashko *((void **)swdata) = skb; 33393a76530SGrygorii Strashko 33493a76530SGrygorii Strashko return k3_udma_glue_push_rx_chn(rx_chn->rx_chn, 0, desc_rx, desc_dma); 33593a76530SGrygorii Strashko } 33693a76530SGrygorii Strashko 33793a76530SGrygorii Strashko void am65_cpsw_nuss_set_p0_ptype(struct am65_cpsw_common *common) 33893a76530SGrygorii Strashko { 33993a76530SGrygorii Strashko struct am65_cpsw_host *host_p = am65_common_get_host(common); 34093a76530SGrygorii Strashko u32 val, pri_map; 34193a76530SGrygorii Strashko 34293a76530SGrygorii Strashko /* P0 set Receive Priority Type */ 34393a76530SGrygorii Strashko val = readl(host_p->port_base + AM65_CPSW_PORT_REG_PRI_CTL); 34493a76530SGrygorii Strashko 34593a76530SGrygorii Strashko if (common->pf_p0_rx_ptype_rrobin) { 34693a76530SGrygorii Strashko val |= AM65_CPSW_PORT_REG_PRI_CTL_RX_PTYPE_RROBIN; 34793a76530SGrygorii Strashko /* Enet Ports fifos works in fixed priority mode only, so 34893a76530SGrygorii Strashko * reset P0_Rx_Pri_Map so all packet will go in Enet fifo 0 34993a76530SGrygorii Strashko */ 35093a76530SGrygorii Strashko pri_map = 0x0; 35193a76530SGrygorii Strashko } else { 35293a76530SGrygorii Strashko val &= ~AM65_CPSW_PORT_REG_PRI_CTL_RX_PTYPE_RROBIN; 35393a76530SGrygorii Strashko /* restore P0_Rx_Pri_Map */ 35493a76530SGrygorii Strashko pri_map = 0x76543210; 35593a76530SGrygorii Strashko } 35693a76530SGrygorii Strashko 35793a76530SGrygorii Strashko writel(pri_map, host_p->port_base + AM65_CPSW_PORT_REG_RX_PRI_MAP); 35893a76530SGrygorii Strashko writel(val, host_p->port_base + AM65_CPSW_PORT_REG_PRI_CTL); 35993a76530SGrygorii Strashko } 36093a76530SGrygorii Strashko 36158356eb3SVignesh Raghavendra static void am65_cpsw_init_host_port_switch(struct am65_cpsw_common *common); 36258356eb3SVignesh Raghavendra static void am65_cpsw_init_host_port_emac(struct am65_cpsw_common *common); 36358356eb3SVignesh Raghavendra static void am65_cpsw_init_port_switch_ale(struct am65_cpsw_port *port); 36458356eb3SVignesh Raghavendra static void am65_cpsw_init_port_emac_ale(struct am65_cpsw_port *port); 36558356eb3SVignesh Raghavendra 3663342a10fSJian Shen static int am65_cpsw_nuss_common_open(struct am65_cpsw_common *common) 36793a76530SGrygorii Strashko { 36893a76530SGrygorii Strashko struct am65_cpsw_host *host_p = am65_common_get_host(common); 36993a76530SGrygorii Strashko int port_idx, i, ret; 37093a76530SGrygorii Strashko struct sk_buff *skb; 37193a76530SGrygorii Strashko u32 val, port_mask; 37293a76530SGrygorii Strashko 37393a76530SGrygorii Strashko if (common->usage_count) 37493a76530SGrygorii Strashko return 0; 37593a76530SGrygorii Strashko 37693a76530SGrygorii Strashko /* Control register */ 37793a76530SGrygorii Strashko writel(AM65_CPSW_CTL_P0_ENABLE | AM65_CPSW_CTL_P0_TX_CRC_REMOVE | 37893a76530SGrygorii Strashko AM65_CPSW_CTL_VLAN_AWARE | AM65_CPSW_CTL_P0_RX_PAD, 37993a76530SGrygorii Strashko common->cpsw_base + AM65_CPSW_REG_CTL); 38093a76530SGrygorii Strashko /* Max length register */ 38193a76530SGrygorii Strashko writel(AM65_CPSW_MAX_PACKET_SIZE, 38293a76530SGrygorii Strashko host_p->port_base + AM65_CPSW_PORT_REG_RX_MAXLEN); 38393a76530SGrygorii Strashko /* set base flow_id */ 38493a76530SGrygorii Strashko writel(common->rx_flow_id_base, 38593a76530SGrygorii Strashko host_p->port_base + AM65_CPSW_PORT0_REG_FLOW_ID_OFFSET); 38693a76530SGrygorii Strashko /* en tx crc offload */ 38797067aafSGrygorii Strashko writel(AM65_CPSW_P0_REG_CTL_RX_CHECKSUM_EN, host_p->port_base + AM65_CPSW_P0_REG_CTL); 38893a76530SGrygorii Strashko 38993a76530SGrygorii Strashko am65_cpsw_nuss_set_p0_ptype(common); 39093a76530SGrygorii Strashko 39193a76530SGrygorii Strashko /* enable statistic */ 39293a76530SGrygorii Strashko val = BIT(HOST_PORT_NUM); 39393a76530SGrygorii Strashko for (port_idx = 0; port_idx < common->port_num; port_idx++) { 39493a76530SGrygorii Strashko struct am65_cpsw_port *port = &common->ports[port_idx]; 39593a76530SGrygorii Strashko 39693a76530SGrygorii Strashko if (!port->disabled) 39793a76530SGrygorii Strashko val |= BIT(port->port_id); 39893a76530SGrygorii Strashko } 39993a76530SGrygorii Strashko writel(val, common->cpsw_base + AM65_CPSW_REG_STAT_PORT_EN); 40093a76530SGrygorii Strashko 40193a76530SGrygorii Strashko /* disable priority elevation */ 40293a76530SGrygorii Strashko writel(0, common->cpsw_base + AM65_CPSW_REG_PTYPE); 40393a76530SGrygorii Strashko 40493a76530SGrygorii Strashko cpsw_ale_start(common->ale); 40593a76530SGrygorii Strashko 40693a76530SGrygorii Strashko /* limit to one RX flow only */ 40793a76530SGrygorii Strashko cpsw_ale_control_set(common->ale, HOST_PORT_NUM, 40893a76530SGrygorii Strashko ALE_DEFAULT_THREAD_ID, 0); 40993a76530SGrygorii Strashko cpsw_ale_control_set(common->ale, HOST_PORT_NUM, 41093a76530SGrygorii Strashko ALE_DEFAULT_THREAD_ENABLE, 1); 41193a76530SGrygorii Strashko /* switch to vlan unaware mode */ 41293a76530SGrygorii Strashko cpsw_ale_control_set(common->ale, HOST_PORT_NUM, ALE_VLAN_AWARE, 1); 41393a76530SGrygorii Strashko cpsw_ale_control_set(common->ale, HOST_PORT_NUM, 41493a76530SGrygorii Strashko ALE_PORT_STATE, ALE_PORT_STATE_FORWARD); 41593a76530SGrygorii Strashko 41693a76530SGrygorii Strashko /* default vlan cfg: create mask based on enabled ports */ 41793a76530SGrygorii Strashko port_mask = GENMASK(common->port_num, 0) & 41893a76530SGrygorii Strashko ~common->disabled_ports_mask; 41993a76530SGrygorii Strashko 42093a76530SGrygorii Strashko cpsw_ale_add_vlan(common->ale, 0, port_mask, 42193a76530SGrygorii Strashko port_mask, port_mask, 42293a76530SGrygorii Strashko port_mask & ~ALE_PORT_HOST); 42393a76530SGrygorii Strashko 42458356eb3SVignesh Raghavendra if (common->is_emac_mode) 42558356eb3SVignesh Raghavendra am65_cpsw_init_host_port_emac(common); 42658356eb3SVignesh Raghavendra else 42758356eb3SVignesh Raghavendra am65_cpsw_init_host_port_switch(common); 42858356eb3SVignesh Raghavendra 42993a76530SGrygorii Strashko for (i = 0; i < common->rx_chns.descs_num; i++) { 43093a76530SGrygorii Strashko skb = __netdev_alloc_skb_ip_align(NULL, 43193a76530SGrygorii Strashko AM65_CPSW_MAX_PACKET_SIZE, 43293a76530SGrygorii Strashko GFP_KERNEL); 43393a76530SGrygorii Strashko if (!skb) { 43493a76530SGrygorii Strashko dev_err(common->dev, "cannot allocate skb\n"); 435*1a014663SRoger Quadros return -ENOMEM; 43693a76530SGrygorii Strashko } 43793a76530SGrygorii Strashko 43893a76530SGrygorii Strashko ret = am65_cpsw_nuss_rx_push(common, skb); 43993a76530SGrygorii Strashko if (ret < 0) { 44093a76530SGrygorii Strashko dev_err(common->dev, 44193a76530SGrygorii Strashko "cannot submit skb to channel rx, error %d\n", 44293a76530SGrygorii Strashko ret); 44393a76530SGrygorii Strashko kfree_skb(skb); 444*1a014663SRoger Quadros return ret; 44593a76530SGrygorii Strashko } 44693a76530SGrygorii Strashko kmemleak_not_leak(skb); 44793a76530SGrygorii Strashko } 44893a76530SGrygorii Strashko k3_udma_glue_enable_rx_chn(common->rx_chns.rx_chn); 44993a76530SGrygorii Strashko 45093a76530SGrygorii Strashko for (i = 0; i < common->tx_ch_num; i++) { 45193a76530SGrygorii Strashko ret = k3_udma_glue_enable_tx_chn(common->tx_chns[i].tx_chn); 45293a76530SGrygorii Strashko if (ret) 453*1a014663SRoger Quadros return ret; 45493a76530SGrygorii Strashko napi_enable(&common->tx_chns[i].napi_tx); 45593a76530SGrygorii Strashko } 45693a76530SGrygorii Strashko 45793a76530SGrygorii Strashko napi_enable(&common->napi_rx); 45847bfc4d1SVignesh Raghavendra if (common->rx_irq_disabled) { 45947bfc4d1SVignesh Raghavendra common->rx_irq_disabled = false; 46047bfc4d1SVignesh Raghavendra enable_irq(common->rx_chns.irq); 46147bfc4d1SVignesh Raghavendra } 46293a76530SGrygorii Strashko 46393a76530SGrygorii Strashko dev_dbg(common->dev, "cpsw_nuss started\n"); 46493a76530SGrygorii Strashko return 0; 46593a76530SGrygorii Strashko } 46693a76530SGrygorii Strashko 46793a76530SGrygorii Strashko static void am65_cpsw_nuss_tx_cleanup(void *data, dma_addr_t desc_dma); 46893a76530SGrygorii Strashko static void am65_cpsw_nuss_rx_cleanup(void *data, dma_addr_t desc_dma); 46993a76530SGrygorii Strashko 47093a76530SGrygorii Strashko static int am65_cpsw_nuss_common_stop(struct am65_cpsw_common *common) 47193a76530SGrygorii Strashko { 47293a76530SGrygorii Strashko int i; 47393a76530SGrygorii Strashko 47493a76530SGrygorii Strashko if (common->usage_count != 1) 47593a76530SGrygorii Strashko return 0; 47693a76530SGrygorii Strashko 47793a76530SGrygorii Strashko cpsw_ale_control_set(common->ale, HOST_PORT_NUM, 47893a76530SGrygorii Strashko ALE_PORT_STATE, ALE_PORT_STATE_DISABLE); 47993a76530SGrygorii Strashko 48093a76530SGrygorii Strashko /* shutdown tx channels */ 48193a76530SGrygorii Strashko atomic_set(&common->tdown_cnt, common->tx_ch_num); 48293a76530SGrygorii Strashko /* ensure new tdown_cnt value is visible */ 48393a76530SGrygorii Strashko smp_mb__after_atomic(); 48493a76530SGrygorii Strashko reinit_completion(&common->tdown_complete); 48593a76530SGrygorii Strashko 48693a76530SGrygorii Strashko for (i = 0; i < common->tx_ch_num; i++) 48793a76530SGrygorii Strashko k3_udma_glue_tdown_tx_chn(common->tx_chns[i].tx_chn, false); 48893a76530SGrygorii Strashko 48993a76530SGrygorii Strashko i = wait_for_completion_timeout(&common->tdown_complete, 49093a76530SGrygorii Strashko msecs_to_jiffies(1000)); 49193a76530SGrygorii Strashko if (!i) 49293a76530SGrygorii Strashko dev_err(common->dev, "tx timeout\n"); 49393a76530SGrygorii Strashko for (i = 0; i < common->tx_ch_num; i++) 49493a76530SGrygorii Strashko napi_disable(&common->tx_chns[i].napi_tx); 49593a76530SGrygorii Strashko 49693a76530SGrygorii Strashko for (i = 0; i < common->tx_ch_num; i++) { 49793a76530SGrygorii Strashko k3_udma_glue_reset_tx_chn(common->tx_chns[i].tx_chn, 49893a76530SGrygorii Strashko &common->tx_chns[i], 49993a76530SGrygorii Strashko am65_cpsw_nuss_tx_cleanup); 50093a76530SGrygorii Strashko k3_udma_glue_disable_tx_chn(common->tx_chns[i].tx_chn); 50193a76530SGrygorii Strashko } 50293a76530SGrygorii Strashko 50393a76530SGrygorii Strashko k3_udma_glue_tdown_rx_chn(common->rx_chns.rx_chn, true); 50493a76530SGrygorii Strashko napi_disable(&common->napi_rx); 50593a76530SGrygorii Strashko 50693a76530SGrygorii Strashko for (i = 0; i < AM65_CPSW_MAX_RX_FLOWS; i++) 50793a76530SGrygorii Strashko k3_udma_glue_reset_rx_chn(common->rx_chns.rx_chn, i, 50893a76530SGrygorii Strashko &common->rx_chns, 50993a76530SGrygorii Strashko am65_cpsw_nuss_rx_cleanup, !!i); 51093a76530SGrygorii Strashko 51193a76530SGrygorii Strashko k3_udma_glue_disable_rx_chn(common->rx_chns.rx_chn); 51293a76530SGrygorii Strashko 51393a76530SGrygorii Strashko cpsw_ale_stop(common->ale); 51493a76530SGrygorii Strashko 51593a76530SGrygorii Strashko writel(0, common->cpsw_base + AM65_CPSW_REG_CTL); 51693a76530SGrygorii Strashko writel(0, common->cpsw_base + AM65_CPSW_REG_STAT_PORT_EN); 51793a76530SGrygorii Strashko 51893a76530SGrygorii Strashko dev_dbg(common->dev, "cpsw_nuss stopped\n"); 51993a76530SGrygorii Strashko return 0; 52093a76530SGrygorii Strashko } 52193a76530SGrygorii Strashko 52293a76530SGrygorii Strashko static int am65_cpsw_nuss_ndo_slave_stop(struct net_device *ndev) 52393a76530SGrygorii Strashko { 52493a76530SGrygorii Strashko struct am65_cpsw_common *common = am65_ndev_to_common(ndev); 52593a76530SGrygorii Strashko struct am65_cpsw_port *port = am65_ndev_to_port(ndev); 52693a76530SGrygorii Strashko int ret; 52793a76530SGrygorii Strashko 528e8609e69SSiddharth Vadapalli phylink_stop(port->slave.phylink); 52993a76530SGrygorii Strashko 53093a76530SGrygorii Strashko netif_tx_stop_all_queues(ndev); 53193a76530SGrygorii Strashko 532e8609e69SSiddharth Vadapalli phylink_disconnect_phy(port->slave.phylink); 53393a76530SGrygorii Strashko 53493a76530SGrygorii Strashko ret = am65_cpsw_nuss_common_stop(common); 53593a76530SGrygorii Strashko if (ret) 53693a76530SGrygorii Strashko return ret; 53793a76530SGrygorii Strashko 53893a76530SGrygorii Strashko common->usage_count--; 53993a76530SGrygorii Strashko pm_runtime_put(common->dev); 54093a76530SGrygorii Strashko return 0; 54193a76530SGrygorii Strashko } 54293a76530SGrygorii Strashko 5437bcffde0SGrygorii Strashko static int cpsw_restore_vlans(struct net_device *vdev, int vid, void *arg) 5447bcffde0SGrygorii Strashko { 5457bcffde0SGrygorii Strashko struct am65_cpsw_port *port = arg; 5467bcffde0SGrygorii Strashko 5477bcffde0SGrygorii Strashko if (!vdev) 5487bcffde0SGrygorii Strashko return 0; 5497bcffde0SGrygorii Strashko 5507bcffde0SGrygorii Strashko return am65_cpsw_nuss_ndo_slave_add_vid(port->ndev, 0, vid); 5517bcffde0SGrygorii Strashko } 5527bcffde0SGrygorii Strashko 55393a76530SGrygorii Strashko static int am65_cpsw_nuss_ndo_slave_open(struct net_device *ndev) 55493a76530SGrygorii Strashko { 55593a76530SGrygorii Strashko struct am65_cpsw_common *common = am65_ndev_to_common(ndev); 55693a76530SGrygorii Strashko struct am65_cpsw_port *port = am65_ndev_to_port(ndev); 55793a76530SGrygorii Strashko int ret, i; 55893a76530SGrygorii Strashko 5592240514cSMinghao Chi ret = pm_runtime_resume_and_get(common->dev); 5602240514cSMinghao Chi if (ret < 0) 56193a76530SGrygorii Strashko return ret; 56293a76530SGrygorii Strashko 56393a76530SGrygorii Strashko /* Notify the stack of the actual queue counts. */ 56493a76530SGrygorii Strashko ret = netif_set_real_num_tx_queues(ndev, common->tx_ch_num); 56593a76530SGrygorii Strashko if (ret) { 56693a76530SGrygorii Strashko dev_err(common->dev, "cannot set real number of tx queues\n"); 56793a76530SGrygorii Strashko return ret; 56893a76530SGrygorii Strashko } 56993a76530SGrygorii Strashko 57093a76530SGrygorii Strashko ret = netif_set_real_num_rx_queues(ndev, AM65_CPSW_MAX_RX_QUEUES); 57193a76530SGrygorii Strashko if (ret) { 57293a76530SGrygorii Strashko dev_err(common->dev, "cannot set real number of rx queues\n"); 57393a76530SGrygorii Strashko return ret; 57493a76530SGrygorii Strashko } 57593a76530SGrygorii Strashko 57693a76530SGrygorii Strashko for (i = 0; i < common->tx_ch_num; i++) 57793a76530SGrygorii Strashko netdev_tx_reset_queue(netdev_get_tx_queue(ndev, i)); 57893a76530SGrygorii Strashko 5793342a10fSJian Shen ret = am65_cpsw_nuss_common_open(common); 58093a76530SGrygorii Strashko if (ret) 58193a76530SGrygorii Strashko return ret; 58293a76530SGrygorii Strashko 58393a76530SGrygorii Strashko common->usage_count++; 58493a76530SGrygorii Strashko 58593a76530SGrygorii Strashko am65_cpsw_port_set_sl_mac(port, ndev->dev_addr); 58693a76530SGrygorii Strashko 58758356eb3SVignesh Raghavendra if (common->is_emac_mode) 58858356eb3SVignesh Raghavendra am65_cpsw_init_port_emac_ale(port); 58958356eb3SVignesh Raghavendra else 59058356eb3SVignesh Raghavendra am65_cpsw_init_port_switch_ale(port); 59193a76530SGrygorii Strashko 59293a76530SGrygorii Strashko /* mac_sl should be configured via phy-link interface */ 59393a76530SGrygorii Strashko am65_cpsw_sl_ctl_reset(port); 59493a76530SGrygorii Strashko 595e8609e69SSiddharth Vadapalli ret = phylink_of_phy_connect(port->slave.phylink, port->slave.phy_node, 0); 596e8609e69SSiddharth Vadapalli if (ret) 59793a76530SGrygorii Strashko goto error_cleanup; 59893a76530SGrygorii Strashko 5997bcffde0SGrygorii Strashko /* restore vlan configurations */ 6007bcffde0SGrygorii Strashko vlan_for_each(ndev, cpsw_restore_vlans, port); 6017bcffde0SGrygorii Strashko 602e8609e69SSiddharth Vadapalli phylink_start(port->slave.phylink); 60393a76530SGrygorii Strashko 60493a76530SGrygorii Strashko return 0; 60593a76530SGrygorii Strashko 60693a76530SGrygorii Strashko error_cleanup: 60793a76530SGrygorii Strashko am65_cpsw_nuss_ndo_slave_stop(ndev); 60893a76530SGrygorii Strashko return ret; 60993a76530SGrygorii Strashko } 61093a76530SGrygorii Strashko 61193a76530SGrygorii Strashko static void am65_cpsw_nuss_rx_cleanup(void *data, dma_addr_t desc_dma) 61293a76530SGrygorii Strashko { 61393a76530SGrygorii Strashko struct am65_cpsw_rx_chn *rx_chn = data; 61493a76530SGrygorii Strashko struct cppi5_host_desc_t *desc_rx; 61593a76530SGrygorii Strashko struct sk_buff *skb; 61693a76530SGrygorii Strashko dma_addr_t buf_dma; 61793a76530SGrygorii Strashko u32 buf_dma_len; 61893a76530SGrygorii Strashko void **swdata; 61993a76530SGrygorii Strashko 62093a76530SGrygorii Strashko desc_rx = k3_cppi_desc_pool_dma2virt(rx_chn->desc_pool, desc_dma); 62193a76530SGrygorii Strashko swdata = cppi5_hdesc_get_swdata(desc_rx); 62293a76530SGrygorii Strashko skb = *swdata; 62393a76530SGrygorii Strashko cppi5_hdesc_get_obuf(desc_rx, &buf_dma, &buf_dma_len); 62439fd0547SPeter Ujfalusi k3_udma_glue_rx_cppi5_to_dma_addr(rx_chn->rx_chn, &buf_dma); 62593a76530SGrygorii Strashko 626ed569ed9SPeter Ujfalusi dma_unmap_single(rx_chn->dma_dev, buf_dma, buf_dma_len, DMA_FROM_DEVICE); 62793a76530SGrygorii Strashko k3_cppi_desc_pool_free(rx_chn->desc_pool, desc_rx); 62893a76530SGrygorii Strashko 62993a76530SGrygorii Strashko dev_kfree_skb_any(skb); 63093a76530SGrygorii Strashko } 63193a76530SGrygorii Strashko 632b1f66a5bSGrygorii Strashko static void am65_cpsw_nuss_rx_ts(struct sk_buff *skb, u32 *psdata) 633b1f66a5bSGrygorii Strashko { 634b1f66a5bSGrygorii Strashko struct skb_shared_hwtstamps *ssh; 635b1f66a5bSGrygorii Strashko u64 ns; 636b1f66a5bSGrygorii Strashko 637b1f66a5bSGrygorii Strashko ns = ((u64)psdata[1] << 32) | psdata[0]; 638b1f66a5bSGrygorii Strashko 639b1f66a5bSGrygorii Strashko ssh = skb_hwtstamps(skb); 640b1f66a5bSGrygorii Strashko memset(ssh, 0, sizeof(*ssh)); 641b1f66a5bSGrygorii Strashko ssh->hwtstamp = ns_to_ktime(ns); 642b1f66a5bSGrygorii Strashko } 643b1f66a5bSGrygorii Strashko 64493a76530SGrygorii Strashko /* RX psdata[2] word format - checksum information */ 64593a76530SGrygorii Strashko #define AM65_CPSW_RX_PSD_CSUM_ADD GENMASK(15, 0) 64693a76530SGrygorii Strashko #define AM65_CPSW_RX_PSD_CSUM_ERR BIT(16) 64793a76530SGrygorii Strashko #define AM65_CPSW_RX_PSD_IS_FRAGMENT BIT(17) 64893a76530SGrygorii Strashko #define AM65_CPSW_RX_PSD_IS_TCP BIT(18) 64993a76530SGrygorii Strashko #define AM65_CPSW_RX_PSD_IPV6_VALID BIT(19) 65093a76530SGrygorii Strashko #define AM65_CPSW_RX_PSD_IPV4_VALID BIT(20) 65193a76530SGrygorii Strashko 65293a76530SGrygorii Strashko static void am65_cpsw_nuss_rx_csum(struct sk_buff *skb, u32 csum_info) 65393a76530SGrygorii Strashko { 65493a76530SGrygorii Strashko /* HW can verify IPv4/IPv6 TCP/UDP packets checksum 65593a76530SGrygorii Strashko * csum information provides in psdata[2] word: 65693a76530SGrygorii Strashko * AM65_CPSW_RX_PSD_CSUM_ERR bit - indicates csum error 65793a76530SGrygorii Strashko * AM65_CPSW_RX_PSD_IPV6_VALID and AM65_CPSW_RX_PSD_IPV4_VALID 65893a76530SGrygorii Strashko * bits - indicates IPv4/IPv6 packet 65993a76530SGrygorii Strashko * AM65_CPSW_RX_PSD_IS_FRAGMENT bit - indicates fragmented packet 66093a76530SGrygorii Strashko * AM65_CPSW_RX_PSD_CSUM_ADD has value 0xFFFF for non fragmented packets 66193a76530SGrygorii Strashko * or csum value for fragmented packets if !AM65_CPSW_RX_PSD_CSUM_ERR 66293a76530SGrygorii Strashko */ 66393a76530SGrygorii Strashko skb_checksum_none_assert(skb); 66493a76530SGrygorii Strashko 66593a76530SGrygorii Strashko if (unlikely(!(skb->dev->features & NETIF_F_RXCSUM))) 66693a76530SGrygorii Strashko return; 66793a76530SGrygorii Strashko 66893a76530SGrygorii Strashko if ((csum_info & (AM65_CPSW_RX_PSD_IPV6_VALID | 66993a76530SGrygorii Strashko AM65_CPSW_RX_PSD_IPV4_VALID)) && 67093a76530SGrygorii Strashko !(csum_info & AM65_CPSW_RX_PSD_CSUM_ERR)) { 67193a76530SGrygorii Strashko /* csum for fragmented packets is unsupported */ 67293a76530SGrygorii Strashko if (!(csum_info & AM65_CPSW_RX_PSD_IS_FRAGMENT)) 67393a76530SGrygorii Strashko skb->ip_summed = CHECKSUM_UNNECESSARY; 67493a76530SGrygorii Strashko } 67593a76530SGrygorii Strashko } 67693a76530SGrygorii Strashko 67793a76530SGrygorii Strashko static int am65_cpsw_nuss_rx_packets(struct am65_cpsw_common *common, 67893a76530SGrygorii Strashko u32 flow_idx) 67993a76530SGrygorii Strashko { 68093a76530SGrygorii Strashko struct am65_cpsw_rx_chn *rx_chn = &common->rx_chns; 68193a76530SGrygorii Strashko u32 buf_dma_len, pkt_len, port_id = 0, csum_info; 68293a76530SGrygorii Strashko struct am65_cpsw_ndev_priv *ndev_priv; 68393a76530SGrygorii Strashko struct am65_cpsw_ndev_stats *stats; 68493a76530SGrygorii Strashko struct cppi5_host_desc_t *desc_rx; 68593a76530SGrygorii Strashko struct device *dev = common->dev; 68693a76530SGrygorii Strashko struct sk_buff *skb, *new_skb; 68793a76530SGrygorii Strashko dma_addr_t desc_dma, buf_dma; 68893a76530SGrygorii Strashko struct am65_cpsw_port *port; 68993a76530SGrygorii Strashko struct net_device *ndev; 69093a76530SGrygorii Strashko void **swdata; 69193a76530SGrygorii Strashko u32 *psdata; 69293a76530SGrygorii Strashko int ret = 0; 69393a76530SGrygorii Strashko 69493a76530SGrygorii Strashko ret = k3_udma_glue_pop_rx_chn(rx_chn->rx_chn, flow_idx, &desc_dma); 69593a76530SGrygorii Strashko if (ret) { 69693a76530SGrygorii Strashko if (ret != -ENODATA) 69793a76530SGrygorii Strashko dev_err(dev, "RX: pop chn fail %d\n", ret); 69893a76530SGrygorii Strashko return ret; 69993a76530SGrygorii Strashko } 70093a76530SGrygorii Strashko 7016a40e289SGrygorii Strashko if (cppi5_desc_is_tdcm(desc_dma)) { 70293a76530SGrygorii Strashko dev_dbg(dev, "%s RX tdown flow: %u\n", __func__, flow_idx); 70393a76530SGrygorii Strashko return 0; 70493a76530SGrygorii Strashko } 70593a76530SGrygorii Strashko 70693a76530SGrygorii Strashko desc_rx = k3_cppi_desc_pool_dma2virt(rx_chn->desc_pool, desc_dma); 70793a76530SGrygorii Strashko dev_dbg(dev, "%s flow_idx: %u desc %pad\n", 70893a76530SGrygorii Strashko __func__, flow_idx, &desc_dma); 70993a76530SGrygorii Strashko 71093a76530SGrygorii Strashko swdata = cppi5_hdesc_get_swdata(desc_rx); 71193a76530SGrygorii Strashko skb = *swdata; 71293a76530SGrygorii Strashko cppi5_hdesc_get_obuf(desc_rx, &buf_dma, &buf_dma_len); 71339fd0547SPeter Ujfalusi k3_udma_glue_rx_cppi5_to_dma_addr(rx_chn->rx_chn, &buf_dma); 71493a76530SGrygorii Strashko pkt_len = cppi5_hdesc_get_pktlen(desc_rx); 71593a76530SGrygorii Strashko cppi5_desc_get_tags_ids(&desc_rx->hdr, &port_id, NULL); 71693a76530SGrygorii Strashko dev_dbg(dev, "%s rx port_id:%d\n", __func__, port_id); 71793a76530SGrygorii Strashko port = am65_common_get_port(common, port_id); 71893a76530SGrygorii Strashko ndev = port->ndev; 71993a76530SGrygorii Strashko skb->dev = ndev; 72093a76530SGrygorii Strashko 72193a76530SGrygorii Strashko psdata = cppi5_hdesc_get_psdata(desc_rx); 722b1f66a5bSGrygorii Strashko /* add RX timestamp */ 723b1f66a5bSGrygorii Strashko if (port->rx_ts_enabled) 724b1f66a5bSGrygorii Strashko am65_cpsw_nuss_rx_ts(skb, psdata); 72593a76530SGrygorii Strashko csum_info = psdata[2]; 72693a76530SGrygorii Strashko dev_dbg(dev, "%s rx csum_info:%#x\n", __func__, csum_info); 72793a76530SGrygorii Strashko 728ed569ed9SPeter Ujfalusi dma_unmap_single(rx_chn->dma_dev, buf_dma, buf_dma_len, DMA_FROM_DEVICE); 72993a76530SGrygorii Strashko 73093a76530SGrygorii Strashko k3_cppi_desc_pool_free(rx_chn->desc_pool, desc_rx); 73193a76530SGrygorii Strashko 73293a76530SGrygorii Strashko new_skb = netdev_alloc_skb_ip_align(ndev, AM65_CPSW_MAX_PACKET_SIZE); 73393a76530SGrygorii Strashko if (new_skb) { 73486e8b070SVignesh Raghavendra ndev_priv = netdev_priv(ndev); 73586e8b070SVignesh Raghavendra am65_cpsw_nuss_set_offload_fwd_mark(skb, ndev_priv->offload_fwd_mark); 73693a76530SGrygorii Strashko skb_put(skb, pkt_len); 73793a76530SGrygorii Strashko skb->protocol = eth_type_trans(skb, ndev); 73893a76530SGrygorii Strashko am65_cpsw_nuss_rx_csum(skb, csum_info); 73993a76530SGrygorii Strashko napi_gro_receive(&common->napi_rx, skb); 74093a76530SGrygorii Strashko 74193a76530SGrygorii Strashko stats = this_cpu_ptr(ndev_priv->stats); 74293a76530SGrygorii Strashko 74393a76530SGrygorii Strashko u64_stats_update_begin(&stats->syncp); 74493a76530SGrygorii Strashko stats->rx_packets++; 74593a76530SGrygorii Strashko stats->rx_bytes += pkt_len; 74693a76530SGrygorii Strashko u64_stats_update_end(&stats->syncp); 74793a76530SGrygorii Strashko kmemleak_not_leak(new_skb); 74893a76530SGrygorii Strashko } else { 74993a76530SGrygorii Strashko ndev->stats.rx_dropped++; 75093a76530SGrygorii Strashko new_skb = skb; 75193a76530SGrygorii Strashko } 75293a76530SGrygorii Strashko 75393a76530SGrygorii Strashko if (netif_dormant(ndev)) { 75493a76530SGrygorii Strashko dev_kfree_skb_any(new_skb); 75593a76530SGrygorii Strashko ndev->stats.rx_dropped++; 75693a76530SGrygorii Strashko return 0; 75793a76530SGrygorii Strashko } 75893a76530SGrygorii Strashko 75993a76530SGrygorii Strashko ret = am65_cpsw_nuss_rx_push(common, new_skb); 76093a76530SGrygorii Strashko if (WARN_ON(ret < 0)) { 76193a76530SGrygorii Strashko dev_kfree_skb_any(new_skb); 76293a76530SGrygorii Strashko ndev->stats.rx_errors++; 76393a76530SGrygorii Strashko ndev->stats.rx_dropped++; 76493a76530SGrygorii Strashko } 76593a76530SGrygorii Strashko 76693a76530SGrygorii Strashko return ret; 76793a76530SGrygorii Strashko } 76893a76530SGrygorii Strashko 76993a76530SGrygorii Strashko static int am65_cpsw_nuss_rx_poll(struct napi_struct *napi_rx, int budget) 77093a76530SGrygorii Strashko { 77193a76530SGrygorii Strashko struct am65_cpsw_common *common = am65_cpsw_napi_to_common(napi_rx); 77293a76530SGrygorii Strashko int flow = AM65_CPSW_MAX_RX_FLOWS; 77393a76530SGrygorii Strashko int cur_budget, ret; 77493a76530SGrygorii Strashko int num_rx = 0; 77593a76530SGrygorii Strashko 77693a76530SGrygorii Strashko /* process every flow */ 77793a76530SGrygorii Strashko while (flow--) { 77893a76530SGrygorii Strashko cur_budget = budget - num_rx; 77993a76530SGrygorii Strashko 78093a76530SGrygorii Strashko while (cur_budget--) { 78193a76530SGrygorii Strashko ret = am65_cpsw_nuss_rx_packets(common, flow); 78293a76530SGrygorii Strashko if (ret) 78393a76530SGrygorii Strashko break; 78493a76530SGrygorii Strashko num_rx++; 78593a76530SGrygorii Strashko } 78693a76530SGrygorii Strashko 78793a76530SGrygorii Strashko if (num_rx >= budget) 78893a76530SGrygorii Strashko break; 78993a76530SGrygorii Strashko } 79093a76530SGrygorii Strashko 79193a76530SGrygorii Strashko dev_dbg(common->dev, "%s num_rx:%d %d\n", __func__, num_rx, budget); 79293a76530SGrygorii Strashko 79347bfc4d1SVignesh Raghavendra if (num_rx < budget && napi_complete_done(napi_rx, num_rx)) { 79447bfc4d1SVignesh Raghavendra if (common->rx_irq_disabled) { 79547bfc4d1SVignesh Raghavendra common->rx_irq_disabled = false; 79693a76530SGrygorii Strashko enable_irq(common->rx_chns.irq); 79747bfc4d1SVignesh Raghavendra } 79847bfc4d1SVignesh Raghavendra } 79993a76530SGrygorii Strashko 80093a76530SGrygorii Strashko return num_rx; 80193a76530SGrygorii Strashko } 80293a76530SGrygorii Strashko 80393a76530SGrygorii Strashko static void am65_cpsw_nuss_xmit_free(struct am65_cpsw_tx_chn *tx_chn, 80493a76530SGrygorii Strashko struct cppi5_host_desc_t *desc) 80593a76530SGrygorii Strashko { 80693a76530SGrygorii Strashko struct cppi5_host_desc_t *first_desc, *next_desc; 80793a76530SGrygorii Strashko dma_addr_t buf_dma, next_desc_dma; 80893a76530SGrygorii Strashko u32 buf_dma_len; 80993a76530SGrygorii Strashko 81093a76530SGrygorii Strashko first_desc = desc; 81193a76530SGrygorii Strashko next_desc = first_desc; 81293a76530SGrygorii Strashko 81393a76530SGrygorii Strashko cppi5_hdesc_get_obuf(first_desc, &buf_dma, &buf_dma_len); 81439fd0547SPeter Ujfalusi k3_udma_glue_tx_cppi5_to_dma_addr(tx_chn->tx_chn, &buf_dma); 81593a76530SGrygorii Strashko 816ed569ed9SPeter Ujfalusi dma_unmap_single(tx_chn->dma_dev, buf_dma, buf_dma_len, DMA_TO_DEVICE); 81793a76530SGrygorii Strashko 81893a76530SGrygorii Strashko next_desc_dma = cppi5_hdesc_get_next_hbdesc(first_desc); 81939fd0547SPeter Ujfalusi k3_udma_glue_tx_cppi5_to_dma_addr(tx_chn->tx_chn, &next_desc_dma); 82093a76530SGrygorii Strashko while (next_desc_dma) { 82193a76530SGrygorii Strashko next_desc = k3_cppi_desc_pool_dma2virt(tx_chn->desc_pool, 82293a76530SGrygorii Strashko next_desc_dma); 82393a76530SGrygorii Strashko cppi5_hdesc_get_obuf(next_desc, &buf_dma, &buf_dma_len); 82439fd0547SPeter Ujfalusi k3_udma_glue_tx_cppi5_to_dma_addr(tx_chn->tx_chn, &buf_dma); 82593a76530SGrygorii Strashko 826ed569ed9SPeter Ujfalusi dma_unmap_page(tx_chn->dma_dev, buf_dma, buf_dma_len, 82793a76530SGrygorii Strashko DMA_TO_DEVICE); 82893a76530SGrygorii Strashko 82993a76530SGrygorii Strashko next_desc_dma = cppi5_hdesc_get_next_hbdesc(next_desc); 83039fd0547SPeter Ujfalusi k3_udma_glue_tx_cppi5_to_dma_addr(tx_chn->tx_chn, &next_desc_dma); 83193a76530SGrygorii Strashko 83293a76530SGrygorii Strashko k3_cppi_desc_pool_free(tx_chn->desc_pool, next_desc); 83393a76530SGrygorii Strashko } 83493a76530SGrygorii Strashko 83593a76530SGrygorii Strashko k3_cppi_desc_pool_free(tx_chn->desc_pool, first_desc); 83693a76530SGrygorii Strashko } 83793a76530SGrygorii Strashko 83893a76530SGrygorii Strashko static void am65_cpsw_nuss_tx_cleanup(void *data, dma_addr_t desc_dma) 83993a76530SGrygorii Strashko { 84093a76530SGrygorii Strashko struct am65_cpsw_tx_chn *tx_chn = data; 84193a76530SGrygorii Strashko struct cppi5_host_desc_t *desc_tx; 84293a76530SGrygorii Strashko struct sk_buff *skb; 84393a76530SGrygorii Strashko void **swdata; 84493a76530SGrygorii Strashko 84593a76530SGrygorii Strashko desc_tx = k3_cppi_desc_pool_dma2virt(tx_chn->desc_pool, desc_dma); 84693a76530SGrygorii Strashko swdata = cppi5_hdesc_get_swdata(desc_tx); 84793a76530SGrygorii Strashko skb = *(swdata); 848ed569ed9SPeter Ujfalusi am65_cpsw_nuss_xmit_free(tx_chn, desc_tx); 84993a76530SGrygorii Strashko 85093a76530SGrygorii Strashko dev_kfree_skb_any(skb); 85193a76530SGrygorii Strashko } 85293a76530SGrygorii Strashko 853a9e60cf0SGrygorii Strashko static struct sk_buff * 854a9e60cf0SGrygorii Strashko am65_cpsw_nuss_tx_compl_packet(struct am65_cpsw_tx_chn *tx_chn, 855a9e60cf0SGrygorii Strashko dma_addr_t desc_dma) 856a9e60cf0SGrygorii Strashko { 857a9e60cf0SGrygorii Strashko struct am65_cpsw_ndev_priv *ndev_priv; 858a9e60cf0SGrygorii Strashko struct am65_cpsw_ndev_stats *stats; 859a9e60cf0SGrygorii Strashko struct cppi5_host_desc_t *desc_tx; 860a9e60cf0SGrygorii Strashko struct net_device *ndev; 861a9e60cf0SGrygorii Strashko struct sk_buff *skb; 862a9e60cf0SGrygorii Strashko void **swdata; 863a9e60cf0SGrygorii Strashko 864a9e60cf0SGrygorii Strashko desc_tx = k3_cppi_desc_pool_dma2virt(tx_chn->desc_pool, 865a9e60cf0SGrygorii Strashko desc_dma); 866a9e60cf0SGrygorii Strashko swdata = cppi5_hdesc_get_swdata(desc_tx); 867a9e60cf0SGrygorii Strashko skb = *(swdata); 868ed569ed9SPeter Ujfalusi am65_cpsw_nuss_xmit_free(tx_chn, desc_tx); 869a9e60cf0SGrygorii Strashko 870a9e60cf0SGrygorii Strashko ndev = skb->dev; 871a9e60cf0SGrygorii Strashko 872a9e60cf0SGrygorii Strashko am65_cpts_tx_timestamp(tx_chn->common->cpts, skb); 873a9e60cf0SGrygorii Strashko 874a9e60cf0SGrygorii Strashko ndev_priv = netdev_priv(ndev); 875a9e60cf0SGrygorii Strashko stats = this_cpu_ptr(ndev_priv->stats); 876a9e60cf0SGrygorii Strashko u64_stats_update_begin(&stats->syncp); 877a9e60cf0SGrygorii Strashko stats->tx_packets++; 878a9e60cf0SGrygorii Strashko stats->tx_bytes += skb->len; 879a9e60cf0SGrygorii Strashko u64_stats_update_end(&stats->syncp); 880a9e60cf0SGrygorii Strashko 881a9e60cf0SGrygorii Strashko return skb; 882a9e60cf0SGrygorii Strashko } 883a9e60cf0SGrygorii Strashko 884a9e60cf0SGrygorii Strashko static void am65_cpsw_nuss_tx_wake(struct am65_cpsw_tx_chn *tx_chn, struct net_device *ndev, 885a9e60cf0SGrygorii Strashko struct netdev_queue *netif_txq) 886a9e60cf0SGrygorii Strashko { 887a9e60cf0SGrygorii Strashko if (netif_tx_queue_stopped(netif_txq)) { 888a9e60cf0SGrygorii Strashko /* Check whether the queue is stopped due to stalled 889a9e60cf0SGrygorii Strashko * tx dma, if the queue is stopped then wake the queue 890a9e60cf0SGrygorii Strashko * as we have free desc for tx 891a9e60cf0SGrygorii Strashko */ 892a9e60cf0SGrygorii Strashko __netif_tx_lock(netif_txq, smp_processor_id()); 893a9e60cf0SGrygorii Strashko if (netif_running(ndev) && 894a9e60cf0SGrygorii Strashko (k3_cppi_desc_pool_avail(tx_chn->desc_pool) >= MAX_SKB_FRAGS)) 895a9e60cf0SGrygorii Strashko netif_tx_wake_queue(netif_txq); 896a9e60cf0SGrygorii Strashko 897a9e60cf0SGrygorii Strashko __netif_tx_unlock(netif_txq); 898a9e60cf0SGrygorii Strashko } 899a9e60cf0SGrygorii Strashko } 900a9e60cf0SGrygorii Strashko 90193a76530SGrygorii Strashko static int am65_cpsw_nuss_tx_compl_packets(struct am65_cpsw_common *common, 90293a76530SGrygorii Strashko int chn, unsigned int budget) 90393a76530SGrygorii Strashko { 90493a76530SGrygorii Strashko struct device *dev = common->dev; 90593a76530SGrygorii Strashko struct am65_cpsw_tx_chn *tx_chn; 90693a76530SGrygorii Strashko struct netdev_queue *netif_txq; 90793a76530SGrygorii Strashko unsigned int total_bytes = 0; 90893a76530SGrygorii Strashko struct net_device *ndev; 90993a76530SGrygorii Strashko struct sk_buff *skb; 91093a76530SGrygorii Strashko dma_addr_t desc_dma; 91193a76530SGrygorii Strashko int res, num_tx = 0; 91293a76530SGrygorii Strashko 91393a76530SGrygorii Strashko tx_chn = &common->tx_chns[chn]; 91493a76530SGrygorii Strashko 91593a76530SGrygorii Strashko while (true) { 916a9e60cf0SGrygorii Strashko spin_lock(&tx_chn->lock); 917a9e60cf0SGrygorii Strashko res = k3_udma_glue_pop_tx_chn(tx_chn->tx_chn, &desc_dma); 918a9e60cf0SGrygorii Strashko spin_unlock(&tx_chn->lock); 919a9e60cf0SGrygorii Strashko if (res == -ENODATA) 920a9e60cf0SGrygorii Strashko break; 92193a76530SGrygorii Strashko 922a9e60cf0SGrygorii Strashko if (cppi5_desc_is_tdcm(desc_dma)) { 923a9e60cf0SGrygorii Strashko if (atomic_dec_and_test(&common->tdown_cnt)) 924a9e60cf0SGrygorii Strashko complete(&common->tdown_complete); 925a9e60cf0SGrygorii Strashko break; 926a9e60cf0SGrygorii Strashko } 927a9e60cf0SGrygorii Strashko 928a9e60cf0SGrygorii Strashko skb = am65_cpsw_nuss_tx_compl_packet(tx_chn, desc_dma); 929a9e60cf0SGrygorii Strashko total_bytes = skb->len; 930a9e60cf0SGrygorii Strashko ndev = skb->dev; 931a9e60cf0SGrygorii Strashko napi_consume_skb(skb, budget); 932a9e60cf0SGrygorii Strashko num_tx++; 933a9e60cf0SGrygorii Strashko 934a9e60cf0SGrygorii Strashko netif_txq = netdev_get_tx_queue(ndev, chn); 935a9e60cf0SGrygorii Strashko 936a9e60cf0SGrygorii Strashko netdev_tx_completed_queue(netif_txq, num_tx, total_bytes); 937a9e60cf0SGrygorii Strashko 938a9e60cf0SGrygorii Strashko am65_cpsw_nuss_tx_wake(tx_chn, ndev, netif_txq); 939a9e60cf0SGrygorii Strashko } 940a9e60cf0SGrygorii Strashko 941a9e60cf0SGrygorii Strashko dev_dbg(dev, "%s:%u pkt:%d\n", __func__, chn, num_tx); 942a9e60cf0SGrygorii Strashko 943a9e60cf0SGrygorii Strashko return num_tx; 944a9e60cf0SGrygorii Strashko } 945a9e60cf0SGrygorii Strashko 946a9e60cf0SGrygorii Strashko static int am65_cpsw_nuss_tx_compl_packets_2g(struct am65_cpsw_common *common, 947a9e60cf0SGrygorii Strashko int chn, unsigned int budget) 948a9e60cf0SGrygorii Strashko { 949a9e60cf0SGrygorii Strashko struct device *dev = common->dev; 950a9e60cf0SGrygorii Strashko struct am65_cpsw_tx_chn *tx_chn; 951a9e60cf0SGrygorii Strashko struct netdev_queue *netif_txq; 952a9e60cf0SGrygorii Strashko unsigned int total_bytes = 0; 953a9e60cf0SGrygorii Strashko struct net_device *ndev; 954a9e60cf0SGrygorii Strashko struct sk_buff *skb; 955a9e60cf0SGrygorii Strashko dma_addr_t desc_dma; 956a9e60cf0SGrygorii Strashko int res, num_tx = 0; 957a9e60cf0SGrygorii Strashko 958a9e60cf0SGrygorii Strashko tx_chn = &common->tx_chns[chn]; 959a9e60cf0SGrygorii Strashko 960a9e60cf0SGrygorii Strashko while (true) { 96193a76530SGrygorii Strashko res = k3_udma_glue_pop_tx_chn(tx_chn->tx_chn, &desc_dma); 96293a76530SGrygorii Strashko if (res == -ENODATA) 96393a76530SGrygorii Strashko break; 96493a76530SGrygorii Strashko 9656a40e289SGrygorii Strashko if (cppi5_desc_is_tdcm(desc_dma)) { 96693a76530SGrygorii Strashko if (atomic_dec_and_test(&common->tdown_cnt)) 96793a76530SGrygorii Strashko complete(&common->tdown_complete); 96893a76530SGrygorii Strashko break; 96993a76530SGrygorii Strashko } 97093a76530SGrygorii Strashko 971a9e60cf0SGrygorii Strashko skb = am65_cpsw_nuss_tx_compl_packet(tx_chn, desc_dma); 97293a76530SGrygorii Strashko 97393a76530SGrygorii Strashko ndev = skb->dev; 97493a76530SGrygorii Strashko total_bytes += skb->len; 97593a76530SGrygorii Strashko napi_consume_skb(skb, budget); 97693a76530SGrygorii Strashko num_tx++; 97793a76530SGrygorii Strashko } 97893a76530SGrygorii Strashko 97993a76530SGrygorii Strashko if (!num_tx) 98093a76530SGrygorii Strashko return 0; 98193a76530SGrygorii Strashko 98293a76530SGrygorii Strashko netif_txq = netdev_get_tx_queue(ndev, chn); 98393a76530SGrygorii Strashko 98493a76530SGrygorii Strashko netdev_tx_completed_queue(netif_txq, num_tx, total_bytes); 98593a76530SGrygorii Strashko 986a9e60cf0SGrygorii Strashko am65_cpsw_nuss_tx_wake(tx_chn, ndev, netif_txq); 98793a76530SGrygorii Strashko 98893a76530SGrygorii Strashko dev_dbg(dev, "%s:%u pkt:%d\n", __func__, chn, num_tx); 98993a76530SGrygorii Strashko 99093a76530SGrygorii Strashko return num_tx; 99193a76530SGrygorii Strashko } 99293a76530SGrygorii Strashko 99393a76530SGrygorii Strashko static int am65_cpsw_nuss_tx_poll(struct napi_struct *napi_tx, int budget) 99493a76530SGrygorii Strashko { 99593a76530SGrygorii Strashko struct am65_cpsw_tx_chn *tx_chn = am65_cpsw_napi_to_tx_chn(napi_tx); 99693a76530SGrygorii Strashko int num_tx; 99793a76530SGrygorii Strashko 998a9e60cf0SGrygorii Strashko if (AM65_CPSW_IS_CPSW2G(tx_chn->common)) 999a9e60cf0SGrygorii Strashko num_tx = am65_cpsw_nuss_tx_compl_packets_2g(tx_chn->common, tx_chn->id, budget); 1000a9e60cf0SGrygorii Strashko else 1001a9e60cf0SGrygorii Strashko num_tx = am65_cpsw_nuss_tx_compl_packets(tx_chn->common, tx_chn->id, budget); 1002a9e60cf0SGrygorii Strashko 10033bacbe04SGrygorii Strashko if (num_tx >= budget) 10043bacbe04SGrygorii Strashko return budget; 100593a76530SGrygorii Strashko 10063bacbe04SGrygorii Strashko if (napi_complete_done(napi_tx, num_tx)) 10073bacbe04SGrygorii Strashko enable_irq(tx_chn->irq); 10083bacbe04SGrygorii Strashko 10093bacbe04SGrygorii Strashko return 0; 101093a76530SGrygorii Strashko } 101193a76530SGrygorii Strashko 101293a76530SGrygorii Strashko static irqreturn_t am65_cpsw_nuss_rx_irq(int irq, void *dev_id) 101393a76530SGrygorii Strashko { 101493a76530SGrygorii Strashko struct am65_cpsw_common *common = dev_id; 101593a76530SGrygorii Strashko 101647bfc4d1SVignesh Raghavendra common->rx_irq_disabled = true; 101793a76530SGrygorii Strashko disable_irq_nosync(irq); 101893a76530SGrygorii Strashko napi_schedule(&common->napi_rx); 101993a76530SGrygorii Strashko 102093a76530SGrygorii Strashko return IRQ_HANDLED; 102193a76530SGrygorii Strashko } 102293a76530SGrygorii Strashko 102393a76530SGrygorii Strashko static irqreturn_t am65_cpsw_nuss_tx_irq(int irq, void *dev_id) 102493a76530SGrygorii Strashko { 102593a76530SGrygorii Strashko struct am65_cpsw_tx_chn *tx_chn = dev_id; 102693a76530SGrygorii Strashko 102793a76530SGrygorii Strashko disable_irq_nosync(irq); 102893a76530SGrygorii Strashko napi_schedule(&tx_chn->napi_tx); 102993a76530SGrygorii Strashko 103093a76530SGrygorii Strashko return IRQ_HANDLED; 103193a76530SGrygorii Strashko } 103293a76530SGrygorii Strashko 103393a76530SGrygorii Strashko static netdev_tx_t am65_cpsw_nuss_ndo_slave_xmit(struct sk_buff *skb, 103493a76530SGrygorii Strashko struct net_device *ndev) 103593a76530SGrygorii Strashko { 103693a76530SGrygorii Strashko struct am65_cpsw_common *common = am65_ndev_to_common(ndev); 103793a76530SGrygorii Strashko struct cppi5_host_desc_t *first_desc, *next_desc, *cur_desc; 103893a76530SGrygorii Strashko struct am65_cpsw_port *port = am65_ndev_to_port(ndev); 103993a76530SGrygorii Strashko struct device *dev = common->dev; 104093a76530SGrygorii Strashko struct am65_cpsw_tx_chn *tx_chn; 104193a76530SGrygorii Strashko struct netdev_queue *netif_txq; 104293a76530SGrygorii Strashko dma_addr_t desc_dma, buf_dma; 104393a76530SGrygorii Strashko int ret, q_idx, i; 104493a76530SGrygorii Strashko void **swdata; 104593a76530SGrygorii Strashko u32 *psdata; 104693a76530SGrygorii Strashko u32 pkt_len; 104793a76530SGrygorii Strashko 104893a76530SGrygorii Strashko /* padding enabled in hw */ 104993a76530SGrygorii Strashko pkt_len = skb_headlen(skb); 105093a76530SGrygorii Strashko 1051b1f66a5bSGrygorii Strashko /* SKB TX timestamp */ 1052b1f66a5bSGrygorii Strashko if (port->tx_ts_enabled) 1053b1f66a5bSGrygorii Strashko am65_cpts_prep_tx_timestamp(common->cpts, skb); 1054b1f66a5bSGrygorii Strashko 105593a76530SGrygorii Strashko q_idx = skb_get_queue_mapping(skb); 105693a76530SGrygorii Strashko dev_dbg(dev, "%s skb_queue:%d\n", __func__, q_idx); 105793a76530SGrygorii Strashko 105893a76530SGrygorii Strashko tx_chn = &common->tx_chns[q_idx]; 105993a76530SGrygorii Strashko netif_txq = netdev_get_tx_queue(ndev, q_idx); 106093a76530SGrygorii Strashko 106193a76530SGrygorii Strashko /* Map the linear buffer */ 1062ed569ed9SPeter Ujfalusi buf_dma = dma_map_single(tx_chn->dma_dev, skb->data, pkt_len, 106393a76530SGrygorii Strashko DMA_TO_DEVICE); 1064ed569ed9SPeter Ujfalusi if (unlikely(dma_mapping_error(tx_chn->dma_dev, buf_dma))) { 106593a76530SGrygorii Strashko dev_err(dev, "Failed to map tx skb buffer\n"); 106693a76530SGrygorii Strashko ndev->stats.tx_errors++; 106793a76530SGrygorii Strashko goto err_free_skb; 106893a76530SGrygorii Strashko } 106993a76530SGrygorii Strashko 107093a76530SGrygorii Strashko first_desc = k3_cppi_desc_pool_alloc(tx_chn->desc_pool); 107193a76530SGrygorii Strashko if (!first_desc) { 107293a76530SGrygorii Strashko dev_dbg(dev, "Failed to allocate descriptor\n"); 1073ed569ed9SPeter Ujfalusi dma_unmap_single(tx_chn->dma_dev, buf_dma, pkt_len, 1074ed569ed9SPeter Ujfalusi DMA_TO_DEVICE); 107593a76530SGrygorii Strashko goto busy_stop_q; 107693a76530SGrygorii Strashko } 107793a76530SGrygorii Strashko 107893a76530SGrygorii Strashko cppi5_hdesc_init(first_desc, CPPI5_INFO0_HDESC_EPIB_PRESENT, 107993a76530SGrygorii Strashko AM65_CPSW_NAV_PS_DATA_SIZE); 108093a76530SGrygorii Strashko cppi5_desc_set_pktids(&first_desc->hdr, 0, 0x3FFF); 108193a76530SGrygorii Strashko cppi5_hdesc_set_pkttype(first_desc, 0x7); 108293a76530SGrygorii Strashko cppi5_desc_set_tags_ids(&first_desc->hdr, 0, port->port_id); 108393a76530SGrygorii Strashko 108439fd0547SPeter Ujfalusi k3_udma_glue_tx_dma_to_cppi5_addr(tx_chn->tx_chn, &buf_dma); 108593a76530SGrygorii Strashko cppi5_hdesc_attach_buf(first_desc, buf_dma, pkt_len, buf_dma, pkt_len); 108693a76530SGrygorii Strashko swdata = cppi5_hdesc_get_swdata(first_desc); 108793a76530SGrygorii Strashko *(swdata) = skb; 108893a76530SGrygorii Strashko psdata = cppi5_hdesc_get_psdata(first_desc); 108993a76530SGrygorii Strashko 109093a76530SGrygorii Strashko /* HW csum offload if enabled */ 109193a76530SGrygorii Strashko psdata[2] = 0; 109293a76530SGrygorii Strashko if (likely(skb->ip_summed == CHECKSUM_PARTIAL)) { 109393a76530SGrygorii Strashko unsigned int cs_start, cs_offset; 109493a76530SGrygorii Strashko 109593a76530SGrygorii Strashko cs_start = skb_transport_offset(skb); 109693a76530SGrygorii Strashko cs_offset = cs_start + skb->csum_offset; 109793a76530SGrygorii Strashko /* HW numerates bytes starting from 1 */ 109893a76530SGrygorii Strashko psdata[2] = ((cs_offset + 1) << 24) | 109993a76530SGrygorii Strashko ((cs_start + 1) << 16) | (skb->len - cs_start); 110093a76530SGrygorii Strashko dev_dbg(dev, "%s tx psdata:%#x\n", __func__, psdata[2]); 110193a76530SGrygorii Strashko } 110293a76530SGrygorii Strashko 110393a76530SGrygorii Strashko if (!skb_is_nonlinear(skb)) 110493a76530SGrygorii Strashko goto done_tx; 110593a76530SGrygorii Strashko 110693a76530SGrygorii Strashko dev_dbg(dev, "fragmented SKB\n"); 110793a76530SGrygorii Strashko 110893a76530SGrygorii Strashko /* Handle the case where skb is fragmented in pages */ 110993a76530SGrygorii Strashko cur_desc = first_desc; 111093a76530SGrygorii Strashko for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { 111193a76530SGrygorii Strashko skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; 111293a76530SGrygorii Strashko u32 frag_size = skb_frag_size(frag); 111393a76530SGrygorii Strashko 111493a76530SGrygorii Strashko next_desc = k3_cppi_desc_pool_alloc(tx_chn->desc_pool); 111593a76530SGrygorii Strashko if (!next_desc) { 111693a76530SGrygorii Strashko dev_err(dev, "Failed to allocate descriptor\n"); 111793a76530SGrygorii Strashko goto busy_free_descs; 111893a76530SGrygorii Strashko } 111993a76530SGrygorii Strashko 1120ed569ed9SPeter Ujfalusi buf_dma = skb_frag_dma_map(tx_chn->dma_dev, frag, 0, frag_size, 112193a76530SGrygorii Strashko DMA_TO_DEVICE); 1122ed569ed9SPeter Ujfalusi if (unlikely(dma_mapping_error(tx_chn->dma_dev, buf_dma))) { 112393a76530SGrygorii Strashko dev_err(dev, "Failed to map tx skb page\n"); 112493a76530SGrygorii Strashko k3_cppi_desc_pool_free(tx_chn->desc_pool, next_desc); 112593a76530SGrygorii Strashko ndev->stats.tx_errors++; 112693a76530SGrygorii Strashko goto err_free_descs; 112793a76530SGrygorii Strashko } 112893a76530SGrygorii Strashko 112993a76530SGrygorii Strashko cppi5_hdesc_reset_hbdesc(next_desc); 113039fd0547SPeter Ujfalusi k3_udma_glue_tx_dma_to_cppi5_addr(tx_chn->tx_chn, &buf_dma); 113193a76530SGrygorii Strashko cppi5_hdesc_attach_buf(next_desc, 113293a76530SGrygorii Strashko buf_dma, frag_size, buf_dma, frag_size); 113393a76530SGrygorii Strashko 113493a76530SGrygorii Strashko desc_dma = k3_cppi_desc_pool_virt2dma(tx_chn->desc_pool, 113593a76530SGrygorii Strashko next_desc); 113639fd0547SPeter Ujfalusi k3_udma_glue_tx_dma_to_cppi5_addr(tx_chn->tx_chn, &desc_dma); 113793a76530SGrygorii Strashko cppi5_hdesc_link_hbdesc(cur_desc, desc_dma); 113893a76530SGrygorii Strashko 113993a76530SGrygorii Strashko pkt_len += frag_size; 114093a76530SGrygorii Strashko cur_desc = next_desc; 114193a76530SGrygorii Strashko } 114293a76530SGrygorii Strashko WARN_ON(pkt_len != skb->len); 114393a76530SGrygorii Strashko 114493a76530SGrygorii Strashko done_tx: 114593a76530SGrygorii Strashko skb_tx_timestamp(skb); 114693a76530SGrygorii Strashko 114793a76530SGrygorii Strashko /* report bql before sending packet */ 114893a76530SGrygorii Strashko netdev_tx_sent_queue(netif_txq, pkt_len); 114993a76530SGrygorii Strashko 115093a76530SGrygorii Strashko cppi5_hdesc_set_pktlen(first_desc, pkt_len); 115193a76530SGrygorii Strashko desc_dma = k3_cppi_desc_pool_virt2dma(tx_chn->desc_pool, first_desc); 1152a9e60cf0SGrygorii Strashko if (AM65_CPSW_IS_CPSW2G(common)) { 115393a76530SGrygorii Strashko ret = k3_udma_glue_push_tx_chn(tx_chn->tx_chn, first_desc, desc_dma); 1154a9e60cf0SGrygorii Strashko } else { 1155a9e60cf0SGrygorii Strashko spin_lock_bh(&tx_chn->lock); 1156a9e60cf0SGrygorii Strashko ret = k3_udma_glue_push_tx_chn(tx_chn->tx_chn, first_desc, desc_dma); 1157a9e60cf0SGrygorii Strashko spin_unlock_bh(&tx_chn->lock); 1158a9e60cf0SGrygorii Strashko } 115993a76530SGrygorii Strashko if (ret) { 116093a76530SGrygorii Strashko dev_err(dev, "can't push desc %d\n", ret); 116193a76530SGrygorii Strashko /* inform bql */ 116293a76530SGrygorii Strashko netdev_tx_completed_queue(netif_txq, 1, pkt_len); 116393a76530SGrygorii Strashko ndev->stats.tx_errors++; 116493a76530SGrygorii Strashko goto err_free_descs; 116593a76530SGrygorii Strashko } 116693a76530SGrygorii Strashko 116793a76530SGrygorii Strashko if (k3_cppi_desc_pool_avail(tx_chn->desc_pool) < MAX_SKB_FRAGS) { 116893a76530SGrygorii Strashko netif_tx_stop_queue(netif_txq); 116993a76530SGrygorii Strashko /* Barrier, so that stop_queue visible to other cpus */ 117093a76530SGrygorii Strashko smp_mb__after_atomic(); 117193a76530SGrygorii Strashko dev_dbg(dev, "netif_tx_stop_queue %d\n", q_idx); 117293a76530SGrygorii Strashko 117393a76530SGrygorii Strashko /* re-check for smp */ 117493a76530SGrygorii Strashko if (k3_cppi_desc_pool_avail(tx_chn->desc_pool) >= 117593a76530SGrygorii Strashko MAX_SKB_FRAGS) { 117693a76530SGrygorii Strashko netif_tx_wake_queue(netif_txq); 117793a76530SGrygorii Strashko dev_dbg(dev, "netif_tx_wake_queue %d\n", q_idx); 117893a76530SGrygorii Strashko } 117993a76530SGrygorii Strashko } 118093a76530SGrygorii Strashko 118193a76530SGrygorii Strashko return NETDEV_TX_OK; 118293a76530SGrygorii Strashko 118393a76530SGrygorii Strashko err_free_descs: 1184ed569ed9SPeter Ujfalusi am65_cpsw_nuss_xmit_free(tx_chn, first_desc); 118593a76530SGrygorii Strashko err_free_skb: 118693a76530SGrygorii Strashko ndev->stats.tx_dropped++; 118793a76530SGrygorii Strashko dev_kfree_skb_any(skb); 118893a76530SGrygorii Strashko return NETDEV_TX_OK; 118993a76530SGrygorii Strashko 119093a76530SGrygorii Strashko busy_free_descs: 1191ed569ed9SPeter Ujfalusi am65_cpsw_nuss_xmit_free(tx_chn, first_desc); 119293a76530SGrygorii Strashko busy_stop_q: 119393a76530SGrygorii Strashko netif_tx_stop_queue(netif_txq); 119493a76530SGrygorii Strashko return NETDEV_TX_BUSY; 119593a76530SGrygorii Strashko } 119693a76530SGrygorii Strashko 119793a76530SGrygorii Strashko static int am65_cpsw_nuss_ndo_slave_set_mac_address(struct net_device *ndev, 119893a76530SGrygorii Strashko void *addr) 119993a76530SGrygorii Strashko { 120093a76530SGrygorii Strashko struct am65_cpsw_common *common = am65_ndev_to_common(ndev); 120193a76530SGrygorii Strashko struct am65_cpsw_port *port = am65_ndev_to_port(ndev); 120293a76530SGrygorii Strashko struct sockaddr *sockaddr = (struct sockaddr *)addr; 120393a76530SGrygorii Strashko int ret; 120493a76530SGrygorii Strashko 120593a76530SGrygorii Strashko ret = eth_prepare_mac_addr_change(ndev, addr); 120693a76530SGrygorii Strashko if (ret < 0) 120793a76530SGrygorii Strashko return ret; 120893a76530SGrygorii Strashko 12092240514cSMinghao Chi ret = pm_runtime_resume_and_get(common->dev); 12102240514cSMinghao Chi if (ret < 0) 121193a76530SGrygorii Strashko return ret; 121293a76530SGrygorii Strashko 121393a76530SGrygorii Strashko cpsw_ale_del_ucast(common->ale, ndev->dev_addr, 121493a76530SGrygorii Strashko HOST_PORT_NUM, 0, 0); 121593a76530SGrygorii Strashko cpsw_ale_add_ucast(common->ale, sockaddr->sa_data, 121693a76530SGrygorii Strashko HOST_PORT_NUM, ALE_SECURE, 0); 121793a76530SGrygorii Strashko 121893a76530SGrygorii Strashko am65_cpsw_port_set_sl_mac(port, addr); 121993a76530SGrygorii Strashko eth_commit_mac_addr_change(ndev, sockaddr); 122093a76530SGrygorii Strashko 122193a76530SGrygorii Strashko pm_runtime_put(common->dev); 122293a76530SGrygorii Strashko 122393a76530SGrygorii Strashko return 0; 122493a76530SGrygorii Strashko } 122593a76530SGrygorii Strashko 1226b1f66a5bSGrygorii Strashko static int am65_cpsw_nuss_hwtstamp_set(struct net_device *ndev, 1227b1f66a5bSGrygorii Strashko struct ifreq *ifr) 1228b1f66a5bSGrygorii Strashko { 1229b1f66a5bSGrygorii Strashko struct am65_cpsw_common *common = am65_ndev_to_common(ndev); 1230b1f66a5bSGrygorii Strashko struct am65_cpsw_port *port = am65_ndev_to_port(ndev); 1231b1f66a5bSGrygorii Strashko u32 ts_ctrl, seq_id, ts_ctrl_ltype2, ts_vlan_ltype; 1232b1f66a5bSGrygorii Strashko struct hwtstamp_config cfg; 1233b1f66a5bSGrygorii Strashko 1234b1f66a5bSGrygorii Strashko if (!IS_ENABLED(CONFIG_TI_K3_AM65_CPTS)) 1235b1f66a5bSGrygorii Strashko return -EOPNOTSUPP; 1236b1f66a5bSGrygorii Strashko 1237b1f66a5bSGrygorii Strashko if (copy_from_user(&cfg, ifr->ifr_data, sizeof(cfg))) 1238b1f66a5bSGrygorii Strashko return -EFAULT; 1239b1f66a5bSGrygorii Strashko 1240b1f66a5bSGrygorii Strashko /* TX HW timestamp */ 1241b1f66a5bSGrygorii Strashko switch (cfg.tx_type) { 1242b1f66a5bSGrygorii Strashko case HWTSTAMP_TX_OFF: 1243b1f66a5bSGrygorii Strashko case HWTSTAMP_TX_ON: 1244b1f66a5bSGrygorii Strashko break; 1245b1f66a5bSGrygorii Strashko default: 1246b1f66a5bSGrygorii Strashko return -ERANGE; 1247b1f66a5bSGrygorii Strashko } 1248b1f66a5bSGrygorii Strashko 1249b1f66a5bSGrygorii Strashko switch (cfg.rx_filter) { 1250b1f66a5bSGrygorii Strashko case HWTSTAMP_FILTER_NONE: 1251b1f66a5bSGrygorii Strashko port->rx_ts_enabled = false; 1252b1f66a5bSGrygorii Strashko break; 1253b1f66a5bSGrygorii Strashko case HWTSTAMP_FILTER_ALL: 1254b1f66a5bSGrygorii Strashko case HWTSTAMP_FILTER_SOME: 1255b1f66a5bSGrygorii Strashko case HWTSTAMP_FILTER_PTP_V1_L4_EVENT: 1256b1f66a5bSGrygorii Strashko case HWTSTAMP_FILTER_PTP_V1_L4_SYNC: 1257b1f66a5bSGrygorii Strashko case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ: 1258b1f66a5bSGrygorii Strashko case HWTSTAMP_FILTER_PTP_V2_L4_EVENT: 1259b1f66a5bSGrygorii Strashko case HWTSTAMP_FILTER_PTP_V2_L4_SYNC: 1260b1f66a5bSGrygorii Strashko case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ: 1261b1f66a5bSGrygorii Strashko case HWTSTAMP_FILTER_PTP_V2_L2_EVENT: 1262b1f66a5bSGrygorii Strashko case HWTSTAMP_FILTER_PTP_V2_L2_SYNC: 1263b1f66a5bSGrygorii Strashko case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ: 1264b1f66a5bSGrygorii Strashko case HWTSTAMP_FILTER_PTP_V2_EVENT: 1265b1f66a5bSGrygorii Strashko case HWTSTAMP_FILTER_PTP_V2_SYNC: 1266b1f66a5bSGrygorii Strashko case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ: 1267b1f66a5bSGrygorii Strashko case HWTSTAMP_FILTER_NTP_ALL: 1268b1f66a5bSGrygorii Strashko port->rx_ts_enabled = true; 1269b1f66a5bSGrygorii Strashko cfg.rx_filter = HWTSTAMP_FILTER_ALL; 1270b1f66a5bSGrygorii Strashko break; 1271b1f66a5bSGrygorii Strashko default: 1272b1f66a5bSGrygorii Strashko return -ERANGE; 1273b1f66a5bSGrygorii Strashko } 1274b1f66a5bSGrygorii Strashko 1275b1f66a5bSGrygorii Strashko port->tx_ts_enabled = (cfg.tx_type == HWTSTAMP_TX_ON); 1276b1f66a5bSGrygorii Strashko 1277b1f66a5bSGrygorii Strashko /* cfg TX timestamp */ 1278b1f66a5bSGrygorii Strashko seq_id = (AM65_CPSW_TS_SEQ_ID_OFFSET << 1279b1f66a5bSGrygorii Strashko AM65_CPSW_PN_TS_SEQ_ID_OFFSET_SHIFT) | ETH_P_1588; 1280b1f66a5bSGrygorii Strashko 1281b1f66a5bSGrygorii Strashko ts_vlan_ltype = ETH_P_8021Q; 1282b1f66a5bSGrygorii Strashko 1283b1f66a5bSGrygorii Strashko ts_ctrl_ltype2 = ETH_P_1588 | 1284b1f66a5bSGrygorii Strashko AM65_CPSW_PN_TS_CTL_LTYPE2_TS_107 | 1285b1f66a5bSGrygorii Strashko AM65_CPSW_PN_TS_CTL_LTYPE2_TS_129 | 1286b1f66a5bSGrygorii Strashko AM65_CPSW_PN_TS_CTL_LTYPE2_TS_130 | 1287b1f66a5bSGrygorii Strashko AM65_CPSW_PN_TS_CTL_LTYPE2_TS_131 | 1288b1f66a5bSGrygorii Strashko AM65_CPSW_PN_TS_CTL_LTYPE2_TS_132 | 1289b1f66a5bSGrygorii Strashko AM65_CPSW_PN_TS_CTL_LTYPE2_TS_319 | 1290b1f66a5bSGrygorii Strashko AM65_CPSW_PN_TS_CTL_LTYPE2_TS_320 | 1291b1f66a5bSGrygorii Strashko AM65_CPSW_PN_TS_CTL_LTYPE2_TS_TTL_NONZERO; 1292b1f66a5bSGrygorii Strashko 1293b1f66a5bSGrygorii Strashko ts_ctrl = AM65_CPSW_TS_EVENT_MSG_TYPE_BITS << 1294b1f66a5bSGrygorii Strashko AM65_CPSW_PN_TS_CTL_MSG_TYPE_EN_SHIFT; 1295b1f66a5bSGrygorii Strashko 1296b1f66a5bSGrygorii Strashko if (port->tx_ts_enabled) 1297b1f66a5bSGrygorii Strashko ts_ctrl |= AM65_CPSW_TS_TX_ANX_ALL_EN | 1298b1f66a5bSGrygorii Strashko AM65_CPSW_PN_TS_CTL_TX_VLAN_LT1_EN; 1299b1f66a5bSGrygorii Strashko 1300b1f66a5bSGrygorii Strashko writel(seq_id, port->port_base + AM65_CPSW_PORTN_REG_TS_SEQ_LTYPE_REG); 1301b1f66a5bSGrygorii Strashko writel(ts_vlan_ltype, port->port_base + 1302b1f66a5bSGrygorii Strashko AM65_CPSW_PORTN_REG_TS_VLAN_LTYPE_REG); 1303b1f66a5bSGrygorii Strashko writel(ts_ctrl_ltype2, port->port_base + 1304b1f66a5bSGrygorii Strashko AM65_CPSW_PORTN_REG_TS_CTL_LTYPE2); 1305b1f66a5bSGrygorii Strashko writel(ts_ctrl, port->port_base + AM65_CPSW_PORTN_REG_TS_CTL); 1306b1f66a5bSGrygorii Strashko 1307b1f66a5bSGrygorii Strashko /* en/dis RX timestamp */ 1308b1f66a5bSGrygorii Strashko am65_cpts_rx_enable(common->cpts, port->rx_ts_enabled); 1309b1f66a5bSGrygorii Strashko 1310b1f66a5bSGrygorii Strashko return copy_to_user(ifr->ifr_data, &cfg, sizeof(cfg)) ? -EFAULT : 0; 1311b1f66a5bSGrygorii Strashko } 1312b1f66a5bSGrygorii Strashko 1313b1f66a5bSGrygorii Strashko static int am65_cpsw_nuss_hwtstamp_get(struct net_device *ndev, 1314b1f66a5bSGrygorii Strashko struct ifreq *ifr) 1315b1f66a5bSGrygorii Strashko { 1316b1f66a5bSGrygorii Strashko struct am65_cpsw_port *port = am65_ndev_to_port(ndev); 1317b1f66a5bSGrygorii Strashko struct hwtstamp_config cfg; 1318b1f66a5bSGrygorii Strashko 1319b1f66a5bSGrygorii Strashko if (!IS_ENABLED(CONFIG_TI_K3_AM65_CPTS)) 1320b1f66a5bSGrygorii Strashko return -EOPNOTSUPP; 1321b1f66a5bSGrygorii Strashko 1322b1f66a5bSGrygorii Strashko cfg.flags = 0; 1323b1f66a5bSGrygorii Strashko cfg.tx_type = port->tx_ts_enabled ? 1324b1f66a5bSGrygorii Strashko HWTSTAMP_TX_ON : HWTSTAMP_TX_OFF; 1325b1f66a5bSGrygorii Strashko cfg.rx_filter = port->rx_ts_enabled ? 1326b1f66a5bSGrygorii Strashko HWTSTAMP_FILTER_ALL : HWTSTAMP_FILTER_NONE; 1327b1f66a5bSGrygorii Strashko 1328b1f66a5bSGrygorii Strashko return copy_to_user(ifr->ifr_data, &cfg, sizeof(cfg)) ? -EFAULT : 0; 1329b1f66a5bSGrygorii Strashko } 1330b1f66a5bSGrygorii Strashko 133193a76530SGrygorii Strashko static int am65_cpsw_nuss_ndo_slave_ioctl(struct net_device *ndev, 133293a76530SGrygorii Strashko struct ifreq *req, int cmd) 133393a76530SGrygorii Strashko { 133493a76530SGrygorii Strashko struct am65_cpsw_port *port = am65_ndev_to_port(ndev); 133593a76530SGrygorii Strashko 133693a76530SGrygorii Strashko if (!netif_running(ndev)) 133793a76530SGrygorii Strashko return -EINVAL; 133893a76530SGrygorii Strashko 1339b1f66a5bSGrygorii Strashko switch (cmd) { 1340b1f66a5bSGrygorii Strashko case SIOCSHWTSTAMP: 1341b1f66a5bSGrygorii Strashko return am65_cpsw_nuss_hwtstamp_set(ndev, req); 1342b1f66a5bSGrygorii Strashko case SIOCGHWTSTAMP: 1343b1f66a5bSGrygorii Strashko return am65_cpsw_nuss_hwtstamp_get(ndev, req); 1344b1f66a5bSGrygorii Strashko } 1345b1f66a5bSGrygorii Strashko 1346e8609e69SSiddharth Vadapalli return phylink_mii_ioctl(port->slave.phylink, req, cmd); 134793a76530SGrygorii Strashko } 134893a76530SGrygorii Strashko 134993a76530SGrygorii Strashko static void am65_cpsw_nuss_ndo_get_stats(struct net_device *dev, 135093a76530SGrygorii Strashko struct rtnl_link_stats64 *stats) 135193a76530SGrygorii Strashko { 135293a76530SGrygorii Strashko struct am65_cpsw_ndev_priv *ndev_priv = netdev_priv(dev); 135393a76530SGrygorii Strashko unsigned int start; 135493a76530SGrygorii Strashko int cpu; 135593a76530SGrygorii Strashko 135693a76530SGrygorii Strashko for_each_possible_cpu(cpu) { 135793a76530SGrygorii Strashko struct am65_cpsw_ndev_stats *cpu_stats; 135893a76530SGrygorii Strashko u64 rx_packets; 135993a76530SGrygorii Strashko u64 rx_bytes; 136093a76530SGrygorii Strashko u64 tx_packets; 136193a76530SGrygorii Strashko u64 tx_bytes; 136293a76530SGrygorii Strashko 136393a76530SGrygorii Strashko cpu_stats = per_cpu_ptr(ndev_priv->stats, cpu); 136493a76530SGrygorii Strashko do { 1365068c38adSThomas Gleixner start = u64_stats_fetch_begin(&cpu_stats->syncp); 136693a76530SGrygorii Strashko rx_packets = cpu_stats->rx_packets; 136793a76530SGrygorii Strashko rx_bytes = cpu_stats->rx_bytes; 136893a76530SGrygorii Strashko tx_packets = cpu_stats->tx_packets; 136993a76530SGrygorii Strashko tx_bytes = cpu_stats->tx_bytes; 1370068c38adSThomas Gleixner } while (u64_stats_fetch_retry(&cpu_stats->syncp, start)); 137193a76530SGrygorii Strashko 137293a76530SGrygorii Strashko stats->rx_packets += rx_packets; 137393a76530SGrygorii Strashko stats->rx_bytes += rx_bytes; 137493a76530SGrygorii Strashko stats->tx_packets += tx_packets; 137593a76530SGrygorii Strashko stats->tx_bytes += tx_bytes; 137693a76530SGrygorii Strashko } 137793a76530SGrygorii Strashko 137893a76530SGrygorii Strashko stats->rx_errors = dev->stats.rx_errors; 137993a76530SGrygorii Strashko stats->rx_dropped = dev->stats.rx_dropped; 138093a76530SGrygorii Strashko stats->tx_dropped = dev->stats.tx_dropped; 138193a76530SGrygorii Strashko } 138293a76530SGrygorii Strashko 138384b4aa49SGrygorii Strashko static const struct net_device_ops am65_cpsw_nuss_netdev_ops = { 138493a76530SGrygorii Strashko .ndo_open = am65_cpsw_nuss_ndo_slave_open, 138593a76530SGrygorii Strashko .ndo_stop = am65_cpsw_nuss_ndo_slave_stop, 138693a76530SGrygorii Strashko .ndo_start_xmit = am65_cpsw_nuss_ndo_slave_xmit, 138793a76530SGrygorii Strashko .ndo_set_rx_mode = am65_cpsw_nuss_ndo_slave_set_rx_mode, 138893a76530SGrygorii Strashko .ndo_get_stats64 = am65_cpsw_nuss_ndo_get_stats, 138993a76530SGrygorii Strashko .ndo_validate_addr = eth_validate_addr, 139093a76530SGrygorii Strashko .ndo_set_mac_address = am65_cpsw_nuss_ndo_slave_set_mac_address, 139193a76530SGrygorii Strashko .ndo_tx_timeout = am65_cpsw_nuss_ndo_host_tx_timeout, 139293a76530SGrygorii Strashko .ndo_vlan_rx_add_vid = am65_cpsw_nuss_ndo_slave_add_vid, 139393a76530SGrygorii Strashko .ndo_vlan_rx_kill_vid = am65_cpsw_nuss_ndo_slave_kill_vid, 1394a7605370SArnd Bergmann .ndo_eth_ioctl = am65_cpsw_nuss_ndo_slave_ioctl, 13958127224cSIvan Khoronzhuk .ndo_setup_tc = am65_cpsw_qos_ndo_setup_tc, 139693a76530SGrygorii Strashko }; 139793a76530SGrygorii Strashko 1398e8609e69SSiddharth Vadapalli static void am65_cpsw_nuss_mac_config(struct phylink_config *config, unsigned int mode, 1399e8609e69SSiddharth Vadapalli const struct phylink_link_state *state) 1400e8609e69SSiddharth Vadapalli { 140137184fc1SSiddharth Vadapalli struct am65_cpsw_slave_data *slave = container_of(config, struct am65_cpsw_slave_data, 140237184fc1SSiddharth Vadapalli phylink_config); 140337184fc1SSiddharth Vadapalli struct am65_cpsw_port *port = container_of(slave, struct am65_cpsw_port, slave); 140437184fc1SSiddharth Vadapalli struct am65_cpsw_common *common = port->common; 140537184fc1SSiddharth Vadapalli 140637184fc1SSiddharth Vadapalli if (common->pdata.extra_modes & BIT(state->interface)) 140737184fc1SSiddharth Vadapalli writel(AM65_CPSW_SGMII_CONTROL_MR_AN_ENABLE, 140837184fc1SSiddharth Vadapalli port->sgmii_base + AM65_CPSW_SGMII_CONTROL_REG); 1409e8609e69SSiddharth Vadapalli } 1410e8609e69SSiddharth Vadapalli 1411e8609e69SSiddharth Vadapalli static void am65_cpsw_nuss_mac_link_down(struct phylink_config *config, unsigned int mode, 1412e8609e69SSiddharth Vadapalli phy_interface_t interface) 1413e8609e69SSiddharth Vadapalli { 1414e8609e69SSiddharth Vadapalli struct am65_cpsw_slave_data *slave = container_of(config, struct am65_cpsw_slave_data, 1415e8609e69SSiddharth Vadapalli phylink_config); 1416e8609e69SSiddharth Vadapalli struct am65_cpsw_port *port = container_of(slave, struct am65_cpsw_port, slave); 1417e8609e69SSiddharth Vadapalli struct am65_cpsw_common *common = port->common; 1418e8609e69SSiddharth Vadapalli struct net_device *ndev = port->ndev; 1419e8609e69SSiddharth Vadapalli int tmo; 1420e8609e69SSiddharth Vadapalli 1421e8609e69SSiddharth Vadapalli /* disable forwarding */ 1422e8609e69SSiddharth Vadapalli cpsw_ale_control_set(common->ale, port->port_id, ALE_PORT_STATE, ALE_PORT_STATE_DISABLE); 1423e8609e69SSiddharth Vadapalli 1424e8609e69SSiddharth Vadapalli cpsw_sl_ctl_set(port->slave.mac_sl, CPSW_SL_CTL_CMD_IDLE); 1425e8609e69SSiddharth Vadapalli 1426e8609e69SSiddharth Vadapalli tmo = cpsw_sl_wait_for_idle(port->slave.mac_sl, 100); 1427e8609e69SSiddharth Vadapalli dev_dbg(common->dev, "down msc_sl %08x tmo %d\n", 1428e8609e69SSiddharth Vadapalli cpsw_sl_reg_read(port->slave.mac_sl, CPSW_SL_MACSTATUS), tmo); 1429e8609e69SSiddharth Vadapalli 1430e8609e69SSiddharth Vadapalli cpsw_sl_ctl_reset(port->slave.mac_sl); 1431e8609e69SSiddharth Vadapalli 1432e8609e69SSiddharth Vadapalli am65_cpsw_qos_link_down(ndev); 1433e8609e69SSiddharth Vadapalli netif_tx_stop_all_queues(ndev); 1434e8609e69SSiddharth Vadapalli } 1435e8609e69SSiddharth Vadapalli 1436e8609e69SSiddharth Vadapalli static void am65_cpsw_nuss_mac_link_up(struct phylink_config *config, struct phy_device *phy, 1437e8609e69SSiddharth Vadapalli unsigned int mode, phy_interface_t interface, int speed, 1438e8609e69SSiddharth Vadapalli int duplex, bool tx_pause, bool rx_pause) 1439e8609e69SSiddharth Vadapalli { 1440e8609e69SSiddharth Vadapalli struct am65_cpsw_slave_data *slave = container_of(config, struct am65_cpsw_slave_data, 1441e8609e69SSiddharth Vadapalli phylink_config); 1442e8609e69SSiddharth Vadapalli struct am65_cpsw_port *port = container_of(slave, struct am65_cpsw_port, slave); 1443e8609e69SSiddharth Vadapalli struct am65_cpsw_common *common = port->common; 1444e8609e69SSiddharth Vadapalli u32 mac_control = CPSW_SL_CTL_GMII_EN; 1445e8609e69SSiddharth Vadapalli struct net_device *ndev = port->ndev; 1446e8609e69SSiddharth Vadapalli 1447e8609e69SSiddharth Vadapalli if (speed == SPEED_1000) 1448e8609e69SSiddharth Vadapalli mac_control |= CPSW_SL_CTL_GIG; 1449e8609e69SSiddharth Vadapalli if (speed == SPEED_10 && interface == PHY_INTERFACE_MODE_RGMII) 1450e8609e69SSiddharth Vadapalli /* Can be used with in band mode only */ 1451e8609e69SSiddharth Vadapalli mac_control |= CPSW_SL_CTL_EXT_EN; 1452e8609e69SSiddharth Vadapalli if (speed == SPEED_100 && interface == PHY_INTERFACE_MODE_RMII) 1453e8609e69SSiddharth Vadapalli mac_control |= CPSW_SL_CTL_IFCTL_A; 1454e8609e69SSiddharth Vadapalli if (duplex) 1455e8609e69SSiddharth Vadapalli mac_control |= CPSW_SL_CTL_FULLDUPLEX; 1456e8609e69SSiddharth Vadapalli 1457e8609e69SSiddharth Vadapalli /* rx_pause/tx_pause */ 1458e8609e69SSiddharth Vadapalli if (rx_pause) 1459e8609e69SSiddharth Vadapalli mac_control |= CPSW_SL_CTL_RX_FLOW_EN; 1460e8609e69SSiddharth Vadapalli 1461e8609e69SSiddharth Vadapalli if (tx_pause) 1462e8609e69SSiddharth Vadapalli mac_control |= CPSW_SL_CTL_TX_FLOW_EN; 1463e8609e69SSiddharth Vadapalli 1464e8609e69SSiddharth Vadapalli cpsw_sl_ctl_set(port->slave.mac_sl, mac_control); 1465e8609e69SSiddharth Vadapalli 1466e8609e69SSiddharth Vadapalli /* enable forwarding */ 1467e8609e69SSiddharth Vadapalli cpsw_ale_control_set(common->ale, port->port_id, ALE_PORT_STATE, ALE_PORT_STATE_FORWARD); 1468e8609e69SSiddharth Vadapalli 1469e8609e69SSiddharth Vadapalli am65_cpsw_qos_link_up(ndev, speed); 1470e8609e69SSiddharth Vadapalli netif_tx_wake_all_queues(ndev); 1471e8609e69SSiddharth Vadapalli } 1472e8609e69SSiddharth Vadapalli 1473e8609e69SSiddharth Vadapalli static const struct phylink_mac_ops am65_cpsw_phylink_mac_ops = { 1474e8609e69SSiddharth Vadapalli .mac_config = am65_cpsw_nuss_mac_config, 1475e8609e69SSiddharth Vadapalli .mac_link_down = am65_cpsw_nuss_mac_link_down, 1476e8609e69SSiddharth Vadapalli .mac_link_up = am65_cpsw_nuss_mac_link_up, 1477e8609e69SSiddharth Vadapalli }; 1478e8609e69SSiddharth Vadapalli 147993a76530SGrygorii Strashko static void am65_cpsw_nuss_slave_disable_unused(struct am65_cpsw_port *port) 148093a76530SGrygorii Strashko { 148193a76530SGrygorii Strashko struct am65_cpsw_common *common = port->common; 148293a76530SGrygorii Strashko 148393a76530SGrygorii Strashko if (!port->disabled) 148493a76530SGrygorii Strashko return; 148593a76530SGrygorii Strashko 148693a76530SGrygorii Strashko cpsw_ale_control_set(common->ale, port->port_id, 148793a76530SGrygorii Strashko ALE_PORT_STATE, ALE_PORT_STATE_DISABLE); 148893a76530SGrygorii Strashko 148993a76530SGrygorii Strashko cpsw_sl_reset(port->slave.mac_sl, 100); 149093a76530SGrygorii Strashko cpsw_sl_ctl_reset(port->slave.mac_sl); 149193a76530SGrygorii Strashko } 149293a76530SGrygorii Strashko 1493*1a014663SRoger Quadros static void am65_cpsw_nuss_free_tx_chns(void *data) 149493a76530SGrygorii Strashko { 1495*1a014663SRoger Quadros struct am65_cpsw_common *common = data; 149693a76530SGrygorii Strashko int i; 149793a76530SGrygorii Strashko 149893a76530SGrygorii Strashko for (i = 0; i < common->tx_ch_num; i++) { 149993a76530SGrygorii Strashko struct am65_cpsw_tx_chn *tx_chn = &common->tx_chns[i]; 150093a76530SGrygorii Strashko 150193a76530SGrygorii Strashko if (!IS_ERR_OR_NULL(tx_chn->desc_pool)) 150293a76530SGrygorii Strashko k3_cppi_desc_pool_destroy(tx_chn->desc_pool); 150393a76530SGrygorii Strashko 1504ce8eb4c7SVignesh Raghavendra if (!IS_ERR_OR_NULL(tx_chn->tx_chn)) 1505ce8eb4c7SVignesh Raghavendra k3_udma_glue_release_tx_chn(tx_chn->tx_chn); 1506ce8eb4c7SVignesh Raghavendra 1507*1a014663SRoger Quadros memset(tx_chn, 0, sizeof(*tx_chn)); 150893a76530SGrygorii Strashko } 150993a76530SGrygorii Strashko } 151093a76530SGrygorii Strashko 151193a76530SGrygorii Strashko void am65_cpsw_nuss_remove_tx_chns(struct am65_cpsw_common *common) 151293a76530SGrygorii Strashko { 151393a76530SGrygorii Strashko struct device *dev = common->dev; 151493a76530SGrygorii Strashko int i; 151593a76530SGrygorii Strashko 1516*1a014663SRoger Quadros devm_remove_action(dev, am65_cpsw_nuss_free_tx_chns, common); 1517*1a014663SRoger Quadros 151893a76530SGrygorii Strashko for (i = 0; i < common->tx_ch_num; i++) { 151993a76530SGrygorii Strashko struct am65_cpsw_tx_chn *tx_chn = &common->tx_chns[i]; 152093a76530SGrygorii Strashko 1521*1a014663SRoger Quadros if (tx_chn->irq) 152293a76530SGrygorii Strashko devm_free_irq(dev, tx_chn->irq, tx_chn); 152393a76530SGrygorii Strashko 152493a76530SGrygorii Strashko netif_napi_del(&tx_chn->napi_tx); 152593a76530SGrygorii Strashko 152693a76530SGrygorii Strashko if (!IS_ERR_OR_NULL(tx_chn->desc_pool)) 152793a76530SGrygorii Strashko k3_cppi_desc_pool_destroy(tx_chn->desc_pool); 152893a76530SGrygorii Strashko 1529ce8eb4c7SVignesh Raghavendra if (!IS_ERR_OR_NULL(tx_chn->tx_chn)) 1530ce8eb4c7SVignesh Raghavendra k3_udma_glue_release_tx_chn(tx_chn->tx_chn); 1531ce8eb4c7SVignesh Raghavendra 153293a76530SGrygorii Strashko memset(tx_chn, 0, sizeof(*tx_chn)); 153393a76530SGrygorii Strashko } 153493a76530SGrygorii Strashko } 153593a76530SGrygorii Strashko 153693a76530SGrygorii Strashko static int am65_cpsw_nuss_init_tx_chns(struct am65_cpsw_common *common) 153793a76530SGrygorii Strashko { 153893a76530SGrygorii Strashko u32 max_desc_num = ALIGN(AM65_CPSW_MAX_TX_DESC, MAX_SKB_FRAGS); 153993a76530SGrygorii Strashko struct k3_udma_glue_tx_channel_cfg tx_cfg = { 0 }; 154093a76530SGrygorii Strashko struct device *dev = common->dev; 154193a76530SGrygorii Strashko struct k3_ring_cfg ring_cfg = { 154293a76530SGrygorii Strashko .elm_size = K3_RINGACC_RING_ELSIZE_8, 154393a76530SGrygorii Strashko .mode = K3_RINGACC_RING_MODE_RING, 154493a76530SGrygorii Strashko .flags = 0 154593a76530SGrygorii Strashko }; 154693a76530SGrygorii Strashko u32 hdesc_size; 154793a76530SGrygorii Strashko int i, ret = 0; 154893a76530SGrygorii Strashko 154993a76530SGrygorii Strashko hdesc_size = cppi5_hdesc_calc_size(true, AM65_CPSW_NAV_PS_DATA_SIZE, 155093a76530SGrygorii Strashko AM65_CPSW_NAV_SW_DATA_SIZE); 155193a76530SGrygorii Strashko 155293a76530SGrygorii Strashko tx_cfg.swdata_size = AM65_CPSW_NAV_SW_DATA_SIZE; 155393a76530SGrygorii Strashko tx_cfg.tx_cfg = ring_cfg; 155493a76530SGrygorii Strashko tx_cfg.txcq_cfg = ring_cfg; 155593a76530SGrygorii Strashko tx_cfg.tx_cfg.size = max_desc_num; 155693a76530SGrygorii Strashko tx_cfg.txcq_cfg.size = max_desc_num; 155793a76530SGrygorii Strashko 155893a76530SGrygorii Strashko for (i = 0; i < common->tx_ch_num; i++) { 155993a76530SGrygorii Strashko struct am65_cpsw_tx_chn *tx_chn = &common->tx_chns[i]; 156093a76530SGrygorii Strashko 156193a76530SGrygorii Strashko snprintf(tx_chn->tx_chn_name, 156293a76530SGrygorii Strashko sizeof(tx_chn->tx_chn_name), "tx%d", i); 156393a76530SGrygorii Strashko 1564a9e60cf0SGrygorii Strashko spin_lock_init(&tx_chn->lock); 156593a76530SGrygorii Strashko tx_chn->common = common; 156693a76530SGrygorii Strashko tx_chn->id = i; 156793a76530SGrygorii Strashko tx_chn->descs_num = max_desc_num; 156893a76530SGrygorii Strashko 156993a76530SGrygorii Strashko tx_chn->tx_chn = 157093a76530SGrygorii Strashko k3_udma_glue_request_tx_chn(dev, 157193a76530SGrygorii Strashko tx_chn->tx_chn_name, 157293a76530SGrygorii Strashko &tx_cfg); 157393a76530SGrygorii Strashko if (IS_ERR(tx_chn->tx_chn)) { 15748fbc2f9eSGrygorii Strashko ret = dev_err_probe(dev, PTR_ERR(tx_chn->tx_chn), 15758fbc2f9eSGrygorii Strashko "Failed to request tx dma channel\n"); 157693a76530SGrygorii Strashko goto err; 157793a76530SGrygorii Strashko } 1578ed569ed9SPeter Ujfalusi tx_chn->dma_dev = k3_udma_glue_tx_get_dma_device(tx_chn->tx_chn); 1579ed569ed9SPeter Ujfalusi 1580ed569ed9SPeter Ujfalusi tx_chn->desc_pool = k3_cppi_desc_pool_create_name(tx_chn->dma_dev, 1581ed569ed9SPeter Ujfalusi tx_chn->descs_num, 1582ed569ed9SPeter Ujfalusi hdesc_size, 1583ed569ed9SPeter Ujfalusi tx_chn->tx_chn_name); 1584ed569ed9SPeter Ujfalusi if (IS_ERR(tx_chn->desc_pool)) { 1585ed569ed9SPeter Ujfalusi ret = PTR_ERR(tx_chn->desc_pool); 1586ed569ed9SPeter Ujfalusi dev_err(dev, "Failed to create poll %d\n", ret); 1587ed569ed9SPeter Ujfalusi goto err; 1588ed569ed9SPeter Ujfalusi } 158993a76530SGrygorii Strashko 159093a76530SGrygorii Strashko tx_chn->irq = k3_udma_glue_tx_get_irq(tx_chn->tx_chn); 1591*1a014663SRoger Quadros if (tx_chn->irq <= 0) { 159293a76530SGrygorii Strashko dev_err(dev, "Failed to get tx dma irq %d\n", 159393a76530SGrygorii Strashko tx_chn->irq); 159493a76530SGrygorii Strashko goto err; 159593a76530SGrygorii Strashko } 159693a76530SGrygorii Strashko 159793a76530SGrygorii Strashko snprintf(tx_chn->tx_chn_name, 159893a76530SGrygorii Strashko sizeof(tx_chn->tx_chn_name), "%s-tx%d", 159993a76530SGrygorii Strashko dev_name(dev), tx_chn->id); 1600fd23df72SRoger Quadros } 1601fd23df72SRoger Quadros 160293a76530SGrygorii Strashko err: 1603*1a014663SRoger Quadros i = devm_add_action(dev, am65_cpsw_nuss_free_tx_chns, common); 1604*1a014663SRoger Quadros if (i) { 1605*1a014663SRoger Quadros dev_err(dev, "Failed to add free_tx_chns action %d\n", i); 1606*1a014663SRoger Quadros return i; 1607*1a014663SRoger Quadros } 160893a76530SGrygorii Strashko 160993a76530SGrygorii Strashko return ret; 161093a76530SGrygorii Strashko } 161193a76530SGrygorii Strashko 1612*1a014663SRoger Quadros static void am65_cpsw_nuss_free_rx_chns(void *data) 161393a76530SGrygorii Strashko { 1614*1a014663SRoger Quadros struct am65_cpsw_common *common = data; 161593a76530SGrygorii Strashko struct am65_cpsw_rx_chn *rx_chn; 161693a76530SGrygorii Strashko 161793a76530SGrygorii Strashko rx_chn = &common->rx_chns; 161893a76530SGrygorii Strashko 161993a76530SGrygorii Strashko if (!IS_ERR_OR_NULL(rx_chn->desc_pool)) 162093a76530SGrygorii Strashko k3_cppi_desc_pool_destroy(rx_chn->desc_pool); 1621ce8eb4c7SVignesh Raghavendra 1622ce8eb4c7SVignesh Raghavendra if (!IS_ERR_OR_NULL(rx_chn->rx_chn)) 1623ce8eb4c7SVignesh Raghavendra k3_udma_glue_release_rx_chn(rx_chn->rx_chn); 162493a76530SGrygorii Strashko } 162593a76530SGrygorii Strashko 162693a76530SGrygorii Strashko static int am65_cpsw_nuss_init_rx_chns(struct am65_cpsw_common *common) 162793a76530SGrygorii Strashko { 162893a76530SGrygorii Strashko struct am65_cpsw_rx_chn *rx_chn = &common->rx_chns; 162993a76530SGrygorii Strashko struct k3_udma_glue_rx_channel_cfg rx_cfg = { 0 }; 163093a76530SGrygorii Strashko u32 max_desc_num = AM65_CPSW_MAX_RX_DESC; 163193a76530SGrygorii Strashko struct device *dev = common->dev; 163293a76530SGrygorii Strashko u32 hdesc_size; 163393a76530SGrygorii Strashko u32 fdqring_id; 163493a76530SGrygorii Strashko int i, ret = 0; 163593a76530SGrygorii Strashko 163693a76530SGrygorii Strashko hdesc_size = cppi5_hdesc_calc_size(true, AM65_CPSW_NAV_PS_DATA_SIZE, 163793a76530SGrygorii Strashko AM65_CPSW_NAV_SW_DATA_SIZE); 163893a76530SGrygorii Strashko 163993a76530SGrygorii Strashko rx_cfg.swdata_size = AM65_CPSW_NAV_SW_DATA_SIZE; 164093a76530SGrygorii Strashko rx_cfg.flow_id_num = AM65_CPSW_MAX_RX_FLOWS; 1641*1a014663SRoger Quadros rx_cfg.flow_id_base = common->rx_flow_id_base; 164293a76530SGrygorii Strashko 164393a76530SGrygorii Strashko /* init all flows */ 164493a76530SGrygorii Strashko rx_chn->dev = dev; 164593a76530SGrygorii Strashko rx_chn->descs_num = max_desc_num; 164693a76530SGrygorii Strashko 164793a76530SGrygorii Strashko rx_chn->rx_chn = k3_udma_glue_request_rx_chn(dev, "rx", &rx_cfg); 164893a76530SGrygorii Strashko if (IS_ERR(rx_chn->rx_chn)) { 16498fbc2f9eSGrygorii Strashko ret = dev_err_probe(dev, PTR_ERR(rx_chn->rx_chn), 16508fbc2f9eSGrygorii Strashko "Failed to request rx dma channel\n"); 165193a76530SGrygorii Strashko goto err; 165293a76530SGrygorii Strashko } 1653ed569ed9SPeter Ujfalusi rx_chn->dma_dev = k3_udma_glue_rx_get_dma_device(rx_chn->rx_chn); 1654ed569ed9SPeter Ujfalusi 1655ed569ed9SPeter Ujfalusi rx_chn->desc_pool = k3_cppi_desc_pool_create_name(rx_chn->dma_dev, 1656ed569ed9SPeter Ujfalusi rx_chn->descs_num, 1657ed569ed9SPeter Ujfalusi hdesc_size, "rx"); 1658ed569ed9SPeter Ujfalusi if (IS_ERR(rx_chn->desc_pool)) { 1659ed569ed9SPeter Ujfalusi ret = PTR_ERR(rx_chn->desc_pool); 1660ed569ed9SPeter Ujfalusi dev_err(dev, "Failed to create rx poll %d\n", ret); 1661ed569ed9SPeter Ujfalusi goto err; 1662ed569ed9SPeter Ujfalusi } 166393a76530SGrygorii Strashko 166493a76530SGrygorii Strashko common->rx_flow_id_base = 166593a76530SGrygorii Strashko k3_udma_glue_rx_get_flow_id_base(rx_chn->rx_chn); 166693a76530SGrygorii Strashko dev_info(dev, "set new flow-id-base %u\n", common->rx_flow_id_base); 166793a76530SGrygorii Strashko 166893a76530SGrygorii Strashko fdqring_id = K3_RINGACC_RING_ID_ANY; 166993a76530SGrygorii Strashko for (i = 0; i < rx_cfg.flow_id_num; i++) { 167093a76530SGrygorii Strashko struct k3_ring_cfg rxring_cfg = { 167193a76530SGrygorii Strashko .elm_size = K3_RINGACC_RING_ELSIZE_8, 167293a76530SGrygorii Strashko .mode = K3_RINGACC_RING_MODE_RING, 167393a76530SGrygorii Strashko .flags = 0, 167493a76530SGrygorii Strashko }; 167593a76530SGrygorii Strashko struct k3_ring_cfg fdqring_cfg = { 167693a76530SGrygorii Strashko .elm_size = K3_RINGACC_RING_ELSIZE_8, 167793a76530SGrygorii Strashko .flags = K3_RINGACC_RING_SHARED, 167893a76530SGrygorii Strashko }; 167993a76530SGrygorii Strashko struct k3_udma_glue_rx_flow_cfg rx_flow_cfg = { 168093a76530SGrygorii Strashko .rx_cfg = rxring_cfg, 168193a76530SGrygorii Strashko .rxfdq_cfg = fdqring_cfg, 168293a76530SGrygorii Strashko .ring_rxq_id = K3_RINGACC_RING_ID_ANY, 168393a76530SGrygorii Strashko .src_tag_lo_sel = 168493a76530SGrygorii Strashko K3_UDMA_GLUE_SRC_TAG_LO_USE_REMOTE_SRC_TAG, 168593a76530SGrygorii Strashko }; 168693a76530SGrygorii Strashko 168793a76530SGrygorii Strashko rx_flow_cfg.ring_rxfdq0_id = fdqring_id; 168893a76530SGrygorii Strashko rx_flow_cfg.rx_cfg.size = max_desc_num; 168993a76530SGrygorii Strashko rx_flow_cfg.rxfdq_cfg.size = max_desc_num; 1690c6275c02SGrygorii Strashko rx_flow_cfg.rxfdq_cfg.mode = common->pdata.fdqring_mode; 169193a76530SGrygorii Strashko 169293a76530SGrygorii Strashko ret = k3_udma_glue_rx_flow_init(rx_chn->rx_chn, 169393a76530SGrygorii Strashko i, &rx_flow_cfg); 169493a76530SGrygorii Strashko if (ret) { 169593a76530SGrygorii Strashko dev_err(dev, "Failed to init rx flow%d %d\n", i, ret); 169693a76530SGrygorii Strashko goto err; 169793a76530SGrygorii Strashko } 169893a76530SGrygorii Strashko if (!i) 169993a76530SGrygorii Strashko fdqring_id = 170093a76530SGrygorii Strashko k3_udma_glue_rx_flow_get_fdq_id(rx_chn->rx_chn, 170193a76530SGrygorii Strashko i); 170293a76530SGrygorii Strashko 170393a76530SGrygorii Strashko rx_chn->irq = k3_udma_glue_rx_get_irq(rx_chn->rx_chn, i); 170493a76530SGrygorii Strashko 170593a76530SGrygorii Strashko if (rx_chn->irq <= 0) { 170693a76530SGrygorii Strashko dev_err(dev, "Failed to get rx dma irq %d\n", 170793a76530SGrygorii Strashko rx_chn->irq); 170893a76530SGrygorii Strashko ret = -ENXIO; 170993a76530SGrygorii Strashko goto err; 171093a76530SGrygorii Strashko } 171193a76530SGrygorii Strashko } 171293a76530SGrygorii Strashko 1713fd23df72SRoger Quadros err: 1714*1a014663SRoger Quadros i = devm_add_action(dev, am65_cpsw_nuss_free_rx_chns, common); 1715*1a014663SRoger Quadros if (i) { 1716*1a014663SRoger Quadros dev_err(dev, "Failed to add free_rx_chns action %d\n", i); 1717*1a014663SRoger Quadros return i; 1718*1a014663SRoger Quadros } 1719fd23df72SRoger Quadros 172093a76530SGrygorii Strashko return ret; 172193a76530SGrygorii Strashko } 172293a76530SGrygorii Strashko 172393a76530SGrygorii Strashko static int am65_cpsw_nuss_init_host_p(struct am65_cpsw_common *common) 172493a76530SGrygorii Strashko { 172593a76530SGrygorii Strashko struct am65_cpsw_host *host_p = am65_common_get_host(common); 172693a76530SGrygorii Strashko 172793a76530SGrygorii Strashko host_p->common = common; 172893a76530SGrygorii Strashko host_p->port_base = common->cpsw_base + AM65_CPSW_NU_PORTS_BASE; 172993a76530SGrygorii Strashko host_p->stat_base = common->cpsw_base + AM65_CPSW_NU_STATS_BASE; 173093a76530SGrygorii Strashko 173193a76530SGrygorii Strashko return 0; 173293a76530SGrygorii Strashko } 173393a76530SGrygorii Strashko 173493a76530SGrygorii Strashko static int am65_cpsw_am654_get_efuse_macid(struct device_node *of_node, 173593a76530SGrygorii Strashko int slave, u8 *mac_addr) 173693a76530SGrygorii Strashko { 173793a76530SGrygorii Strashko u32 mac_lo, mac_hi, offset; 173893a76530SGrygorii Strashko struct regmap *syscon; 173993a76530SGrygorii Strashko int ret; 174093a76530SGrygorii Strashko 174193a76530SGrygorii Strashko syscon = syscon_regmap_lookup_by_phandle(of_node, "ti,syscon-efuse"); 174293a76530SGrygorii Strashko if (IS_ERR(syscon)) { 174393a76530SGrygorii Strashko if (PTR_ERR(syscon) == -ENODEV) 174493a76530SGrygorii Strashko return 0; 174593a76530SGrygorii Strashko return PTR_ERR(syscon); 174693a76530SGrygorii Strashko } 174793a76530SGrygorii Strashko 174893a76530SGrygorii Strashko ret = of_property_read_u32_index(of_node, "ti,syscon-efuse", 1, 174993a76530SGrygorii Strashko &offset); 175093a76530SGrygorii Strashko if (ret) 175193a76530SGrygorii Strashko return ret; 175293a76530SGrygorii Strashko 175393a76530SGrygorii Strashko regmap_read(syscon, offset, &mac_lo); 175493a76530SGrygorii Strashko regmap_read(syscon, offset + 4, &mac_hi); 175593a76530SGrygorii Strashko 175693a76530SGrygorii Strashko mac_addr[0] = (mac_hi >> 8) & 0xff; 175793a76530SGrygorii Strashko mac_addr[1] = mac_hi & 0xff; 175893a76530SGrygorii Strashko mac_addr[2] = (mac_lo >> 24) & 0xff; 175993a76530SGrygorii Strashko mac_addr[3] = (mac_lo >> 16) & 0xff; 176093a76530SGrygorii Strashko mac_addr[4] = (mac_lo >> 8) & 0xff; 176193a76530SGrygorii Strashko mac_addr[5] = mac_lo & 0xff; 176293a76530SGrygorii Strashko 176393a76530SGrygorii Strashko return 0; 176493a76530SGrygorii Strashko } 176593a76530SGrygorii Strashko 1766b1f66a5bSGrygorii Strashko static int am65_cpsw_init_cpts(struct am65_cpsw_common *common) 1767b1f66a5bSGrygorii Strashko { 1768b1f66a5bSGrygorii Strashko struct device *dev = common->dev; 1769b1f66a5bSGrygorii Strashko struct device_node *node; 1770b1f66a5bSGrygorii Strashko struct am65_cpts *cpts; 1771b1f66a5bSGrygorii Strashko void __iomem *reg_base; 1772b1f66a5bSGrygorii Strashko 1773b1f66a5bSGrygorii Strashko if (!IS_ENABLED(CONFIG_TI_K3_AM65_CPTS)) 1774b1f66a5bSGrygorii Strashko return 0; 1775b1f66a5bSGrygorii Strashko 1776b1f66a5bSGrygorii Strashko node = of_get_child_by_name(dev->of_node, "cpts"); 1777b1f66a5bSGrygorii Strashko if (!node) { 1778b1f66a5bSGrygorii Strashko dev_err(dev, "%s cpts not found\n", __func__); 1779b1f66a5bSGrygorii Strashko return -ENOENT; 1780b1f66a5bSGrygorii Strashko } 1781b1f66a5bSGrygorii Strashko 1782b1f66a5bSGrygorii Strashko reg_base = common->cpsw_base + AM65_CPSW_NU_CPTS_BASE; 1783b1f66a5bSGrygorii Strashko cpts = am65_cpts_create(dev, reg_base, node); 1784b1f66a5bSGrygorii Strashko if (IS_ERR(cpts)) { 1785b1f66a5bSGrygorii Strashko int ret = PTR_ERR(cpts); 1786b1f66a5bSGrygorii Strashko 17875dd89d2fSMiaoqian Lin of_node_put(node); 1788b1f66a5bSGrygorii Strashko if (ret == -EOPNOTSUPP) { 1789b1f66a5bSGrygorii Strashko dev_info(dev, "cpts disabled\n"); 1790b1f66a5bSGrygorii Strashko return 0; 1791b1f66a5bSGrygorii Strashko } 1792b1f66a5bSGrygorii Strashko 1793b1f66a5bSGrygorii Strashko dev_err(dev, "cpts create err %d\n", ret); 1794b1f66a5bSGrygorii Strashko return ret; 1795b1f66a5bSGrygorii Strashko } 1796b1f66a5bSGrygorii Strashko common->cpts = cpts; 1797a9c74700SGrygorii Strashko /* Forbid PM runtime if CPTS is running. 1798a9c74700SGrygorii Strashko * K3 CPSWxG modules may completely lose context during ON->OFF 1799a9c74700SGrygorii Strashko * transitions depending on integration. 1800a9c74700SGrygorii Strashko * AM65x/J721E MCU CPSW2G: false 1801a9c74700SGrygorii Strashko * J721E MAIN_CPSW9G: true 1802a9c74700SGrygorii Strashko */ 1803a9c74700SGrygorii Strashko pm_runtime_forbid(dev); 1804b1f66a5bSGrygorii Strashko 1805b1f66a5bSGrygorii Strashko return 0; 1806b1f66a5bSGrygorii Strashko } 1807b1f66a5bSGrygorii Strashko 180893a76530SGrygorii Strashko static int am65_cpsw_nuss_init_slave_ports(struct am65_cpsw_common *common) 180993a76530SGrygorii Strashko { 181093a76530SGrygorii Strashko struct device_node *node, *port_np; 181193a76530SGrygorii Strashko struct device *dev = common->dev; 181293a76530SGrygorii Strashko int ret; 181393a76530SGrygorii Strashko 181493a76530SGrygorii Strashko node = of_get_child_by_name(dev->of_node, "ethernet-ports"); 181593a76530SGrygorii Strashko if (!node) 181693a76530SGrygorii Strashko return -ENOENT; 181793a76530SGrygorii Strashko 181893a76530SGrygorii Strashko for_each_child_of_node(node, port_np) { 181993a76530SGrygorii Strashko struct am65_cpsw_port *port; 182093a76530SGrygorii Strashko u32 port_id; 182193a76530SGrygorii Strashko 182293a76530SGrygorii Strashko /* it is not a slave port node, continue */ 182393a76530SGrygorii Strashko if (strcmp(port_np->name, "port")) 182493a76530SGrygorii Strashko continue; 182593a76530SGrygorii Strashko 182693a76530SGrygorii Strashko ret = of_property_read_u32(port_np, "reg", &port_id); 182793a76530SGrygorii Strashko if (ret < 0) { 182893a76530SGrygorii Strashko dev_err(dev, "%pOF error reading port_id %d\n", 182993a76530SGrygorii Strashko port_np, ret); 1830be565ec7SWang Qing goto of_node_put; 183193a76530SGrygorii Strashko } 183293a76530SGrygorii Strashko 183393a76530SGrygorii Strashko if (!port_id || port_id > common->port_num) { 183493a76530SGrygorii Strashko dev_err(dev, "%pOF has invalid port_id %u %s\n", 183593a76530SGrygorii Strashko port_np, port_id, port_np->name); 1836be565ec7SWang Qing ret = -EINVAL; 1837be565ec7SWang Qing goto of_node_put; 183893a76530SGrygorii Strashko } 183993a76530SGrygorii Strashko 184093a76530SGrygorii Strashko port = am65_common_get_port(common, port_id); 184193a76530SGrygorii Strashko port->port_id = port_id; 184293a76530SGrygorii Strashko port->common = common; 184393a76530SGrygorii Strashko port->port_base = common->cpsw_base + AM65_CPSW_NU_PORTS_BASE + 184493a76530SGrygorii Strashko AM65_CPSW_NU_PORTS_OFFSET * (port_id); 184537184fc1SSiddharth Vadapalli if (common->pdata.extra_modes) 184637184fc1SSiddharth Vadapalli port->sgmii_base = common->ss_base + AM65_CPSW_SGMII_BASE * (port_id); 184793a76530SGrygorii Strashko port->stat_base = common->cpsw_base + AM65_CPSW_NU_STATS_BASE + 184893a76530SGrygorii Strashko (AM65_CPSW_NU_STATS_PORT_OFFSET * port_id); 184993a76530SGrygorii Strashko port->name = of_get_property(port_np, "label", NULL); 18508127224cSIvan Khoronzhuk port->fetch_ram_base = 18518127224cSIvan Khoronzhuk common->cpsw_base + AM65_CPSW_NU_FRAM_BASE + 18528127224cSIvan Khoronzhuk (AM65_CPSW_NU_FRAM_PORT_OFFSET * (port_id - 1)); 185393a76530SGrygorii Strashko 1854d6d0aeafSGrygorii Strashko port->slave.mac_sl = cpsw_sl_get("am65", dev, port->port_base); 1855be565ec7SWang Qing if (IS_ERR(port->slave.mac_sl)) { 1856be565ec7SWang Qing ret = PTR_ERR(port->slave.mac_sl); 1857be565ec7SWang Qing goto of_node_put; 1858be565ec7SWang Qing } 1859d6d0aeafSGrygorii Strashko 186093a76530SGrygorii Strashko port->disabled = !of_device_is_available(port_np); 186184b4aa49SGrygorii Strashko if (port->disabled) { 186284b4aa49SGrygorii Strashko common->disabled_ports_mask |= BIT(port->port_id); 186393a76530SGrygorii Strashko continue; 186484b4aa49SGrygorii Strashko } 186593a76530SGrygorii Strashko 186693a76530SGrygorii Strashko port->slave.ifphy = devm_of_phy_get(dev, port_np, NULL); 186793a76530SGrygorii Strashko if (IS_ERR(port->slave.ifphy)) { 186893a76530SGrygorii Strashko ret = PTR_ERR(port->slave.ifphy); 186993a76530SGrygorii Strashko dev_err(dev, "%pOF error retrieving port phy: %d\n", 187093a76530SGrygorii Strashko port_np, ret); 1871be565ec7SWang Qing goto of_node_put; 187293a76530SGrygorii Strashko } 187393a76530SGrygorii Strashko 187493a76530SGrygorii Strashko port->slave.mac_only = 187593a76530SGrygorii Strashko of_property_read_bool(port_np, "ti,mac-only"); 187693a76530SGrygorii Strashko 187793a76530SGrygorii Strashko /* get phy/link info */ 1878e8609e69SSiddharth Vadapalli port->slave.phy_node = port_np; 187993a76530SGrygorii Strashko ret = of_get_phy_mode(port_np, &port->slave.phy_if); 188093a76530SGrygorii Strashko if (ret) { 188193a76530SGrygorii Strashko dev_err(dev, "%pOF read phy-mode err %d\n", 188293a76530SGrygorii Strashko port_np, ret); 1883be565ec7SWang Qing goto of_node_put; 188493a76530SGrygorii Strashko } 188593a76530SGrygorii Strashko 1886763015a7SSiddharth Vadapalli ret = phy_set_mode_ext(port->slave.ifphy, PHY_MODE_ETHERNET, port->slave.phy_if); 1887763015a7SSiddharth Vadapalli if (ret) 1888763015a7SSiddharth Vadapalli goto of_node_put; 1889763015a7SSiddharth Vadapalli 189083216e39SMichael Walle ret = of_get_mac_address(port_np, port->slave.mac_addr); 189183216e39SMichael Walle if (ret) { 189283216e39SMichael Walle am65_cpsw_am654_get_efuse_macid(port_np, 189393a76530SGrygorii Strashko port->port_id, 189483216e39SMichael Walle port->slave.mac_addr); 189583216e39SMichael Walle if (!is_valid_ether_addr(port->slave.mac_addr)) { 1896ba530feaSJakub Kicinski eth_random_addr(port->slave.mac_addr); 189776dcbd23SColin Ian King dev_err(dev, "Use random MAC address\n"); 189893a76530SGrygorii Strashko } 189993a76530SGrygorii Strashko } 190083216e39SMichael Walle } 190193a76530SGrygorii Strashko of_node_put(node); 190293a76530SGrygorii Strashko 190384b4aa49SGrygorii Strashko /* is there at least one ext.port */ 190484b4aa49SGrygorii Strashko if (!(~common->disabled_ports_mask & GENMASK(common->port_num, 1))) { 190584b4aa49SGrygorii Strashko dev_err(dev, "No Ext. port are available\n"); 190684b4aa49SGrygorii Strashko return -ENODEV; 190784b4aa49SGrygorii Strashko } 190884b4aa49SGrygorii Strashko 190993a76530SGrygorii Strashko return 0; 1910be565ec7SWang Qing 1911be565ec7SWang Qing of_node_put: 1912be565ec7SWang Qing of_node_put(port_np); 1913be565ec7SWang Qing of_node_put(node); 1914be565ec7SWang Qing return ret; 191593a76530SGrygorii Strashko } 191693a76530SGrygorii Strashko 191793a76530SGrygorii Strashko static void am65_cpsw_pcpu_stats_free(void *data) 191893a76530SGrygorii Strashko { 191993a76530SGrygorii Strashko struct am65_cpsw_ndev_stats __percpu *stats = data; 192093a76530SGrygorii Strashko 192193a76530SGrygorii Strashko free_percpu(stats); 192293a76530SGrygorii Strashko } 192393a76530SGrygorii Strashko 1924e8609e69SSiddharth Vadapalli static void am65_cpsw_nuss_phylink_cleanup(struct am65_cpsw_common *common) 1925e8609e69SSiddharth Vadapalli { 1926e8609e69SSiddharth Vadapalli struct am65_cpsw_port *port; 1927e8609e69SSiddharth Vadapalli int i; 1928e8609e69SSiddharth Vadapalli 1929e8609e69SSiddharth Vadapalli for (i = 0; i < common->port_num; i++) { 1930e8609e69SSiddharth Vadapalli port = &common->ports[i]; 1931e8609e69SSiddharth Vadapalli if (port->slave.phylink) 1932e8609e69SSiddharth Vadapalli phylink_destroy(port->slave.phylink); 1933e8609e69SSiddharth Vadapalli } 1934e8609e69SSiddharth Vadapalli } 1935e8609e69SSiddharth Vadapalli 193684b4aa49SGrygorii Strashko static int 193784b4aa49SGrygorii Strashko am65_cpsw_nuss_init_port_ndev(struct am65_cpsw_common *common, u32 port_idx) 193893a76530SGrygorii Strashko { 193993a76530SGrygorii Strashko struct am65_cpsw_ndev_priv *ndev_priv; 194093a76530SGrygorii Strashko struct device *dev = common->dev; 194193a76530SGrygorii Strashko struct am65_cpsw_port *port; 1942e8609e69SSiddharth Vadapalli struct phylink *phylink; 194393a76530SGrygorii Strashko int ret; 194493a76530SGrygorii Strashko 194584b4aa49SGrygorii Strashko port = &common->ports[port_idx]; 194684b4aa49SGrygorii Strashko 194784b4aa49SGrygorii Strashko if (port->disabled) 194884b4aa49SGrygorii Strashko return 0; 194993a76530SGrygorii Strashko 195093a76530SGrygorii Strashko /* alloc netdev */ 195193a76530SGrygorii Strashko port->ndev = devm_alloc_etherdev_mqs(common->dev, 195293a76530SGrygorii Strashko sizeof(struct am65_cpsw_ndev_priv), 195393a76530SGrygorii Strashko AM65_CPSW_MAX_TX_QUEUES, 195493a76530SGrygorii Strashko AM65_CPSW_MAX_RX_QUEUES); 195593a76530SGrygorii Strashko if (!port->ndev) { 195693a76530SGrygorii Strashko dev_err(dev, "error allocating slave net_device %u\n", 195793a76530SGrygorii Strashko port->port_id); 195893a76530SGrygorii Strashko return -ENOMEM; 195993a76530SGrygorii Strashko } 196093a76530SGrygorii Strashko 196193a76530SGrygorii Strashko ndev_priv = netdev_priv(port->ndev); 196293a76530SGrygorii Strashko ndev_priv->port = port; 196393a76530SGrygorii Strashko ndev_priv->msg_enable = AM65_CPSW_DEBUG; 196493a76530SGrygorii Strashko SET_NETDEV_DEV(port->ndev, dev); 196593a76530SGrygorii Strashko 1966f3956ebbSJakub Kicinski eth_hw_addr_set(port->ndev, port->slave.mac_addr); 196793a76530SGrygorii Strashko 196893a76530SGrygorii Strashko port->ndev->min_mtu = AM65_CPSW_MIN_PACKET_SIZE; 196993a76530SGrygorii Strashko port->ndev->max_mtu = AM65_CPSW_MAX_PACKET_SIZE; 197093a76530SGrygorii Strashko port->ndev->hw_features = NETIF_F_SG | 197193a76530SGrygorii Strashko NETIF_F_RXCSUM | 19722c4dc314SMurali Karicheri NETIF_F_HW_CSUM | 19732c4dc314SMurali Karicheri NETIF_F_HW_TC; 197493a76530SGrygorii Strashko port->ndev->features = port->ndev->hw_features | 197593a76530SGrygorii Strashko NETIF_F_HW_VLAN_CTAG_FILTER; 197693a76530SGrygorii Strashko port->ndev->vlan_features |= NETIF_F_SG; 197784b4aa49SGrygorii Strashko port->ndev->netdev_ops = &am65_cpsw_nuss_netdev_ops; 197893a76530SGrygorii Strashko port->ndev->ethtool_ops = &am65_cpsw_ethtool_ops_slave; 197993a76530SGrygorii Strashko 1980e8609e69SSiddharth Vadapalli /* Configuring Phylink */ 1981e8609e69SSiddharth Vadapalli port->slave.phylink_config.dev = &port->ndev->dev; 1982e8609e69SSiddharth Vadapalli port->slave.phylink_config.type = PHYLINK_NETDEV; 1983e8609e69SSiddharth Vadapalli port->slave.phylink_config.mac_capabilities = MAC_SYM_PAUSE | MAC_10 | MAC_100 | MAC_1000FD; 1984e8609e69SSiddharth Vadapalli 198537184fc1SSiddharth Vadapalli if (phy_interface_mode_is_rgmii(port->slave.phy_if)) { 1986e8609e69SSiddharth Vadapalli phy_interface_set_rgmii(port->slave.phylink_config.supported_interfaces); 198737184fc1SSiddharth Vadapalli } else if (port->slave.phy_if == PHY_INTERFACE_MODE_RMII) { 198837184fc1SSiddharth Vadapalli __set_bit(PHY_INTERFACE_MODE_RMII, 198937184fc1SSiddharth Vadapalli port->slave.phylink_config.supported_interfaces); 199037184fc1SSiddharth Vadapalli } else if (common->pdata.extra_modes & BIT(port->slave.phy_if)) { 199137184fc1SSiddharth Vadapalli __set_bit(PHY_INTERFACE_MODE_QSGMII, 199237184fc1SSiddharth Vadapalli port->slave.phylink_config.supported_interfaces); 199337184fc1SSiddharth Vadapalli } else { 199437184fc1SSiddharth Vadapalli dev_err(dev, "selected phy-mode is not supported\n"); 199537184fc1SSiddharth Vadapalli return -EOPNOTSUPP; 199637184fc1SSiddharth Vadapalli } 1997e8609e69SSiddharth Vadapalli 19980b718007SSiddharth Vadapalli phylink = phylink_create(&port->slave.phylink_config, 19990b718007SSiddharth Vadapalli of_node_to_fwnode(port->slave.phy_node), 20000b718007SSiddharth Vadapalli port->slave.phy_if, 2001e8609e69SSiddharth Vadapalli &am65_cpsw_phylink_mac_ops); 2002e8609e69SSiddharth Vadapalli if (IS_ERR(phylink)) 2003e8609e69SSiddharth Vadapalli return PTR_ERR(phylink); 2004e8609e69SSiddharth Vadapalli 2005e8609e69SSiddharth Vadapalli port->slave.phylink = phylink; 2006e8609e69SSiddharth Vadapalli 200793a76530SGrygorii Strashko /* Disable TX checksum offload by default due to HW bug */ 200838389aa6SGrygorii Strashko if (common->pdata.quirks & AM65_CPSW_QUIRK_I2027_NO_TX_CSUM) 200993a76530SGrygorii Strashko port->ndev->features &= ~NETIF_F_HW_CSUM; 201093a76530SGrygorii Strashko 201193a76530SGrygorii Strashko ndev_priv->stats = netdev_alloc_pcpu_stats(struct am65_cpsw_ndev_stats); 201293a76530SGrygorii Strashko if (!ndev_priv->stats) 201393a76530SGrygorii Strashko return -ENOMEM; 201493a76530SGrygorii Strashko 201593a76530SGrygorii Strashko ret = devm_add_action_or_reset(dev, am65_cpsw_pcpu_stats_free, 201693a76530SGrygorii Strashko ndev_priv->stats); 201784b4aa49SGrygorii Strashko if (ret) 201884b4aa49SGrygorii Strashko dev_err(dev, "failed to add percpu stat free action %d\n", ret); 201984b4aa49SGrygorii Strashko 202084b4aa49SGrygorii Strashko if (!common->dma_ndev) 202184b4aa49SGrygorii Strashko common->dma_ndev = port->ndev; 202284b4aa49SGrygorii Strashko 202393a76530SGrygorii Strashko return ret; 202493a76530SGrygorii Strashko } 202593a76530SGrygorii Strashko 202684b4aa49SGrygorii Strashko static int am65_cpsw_nuss_init_ndevs(struct am65_cpsw_common *common) 202784b4aa49SGrygorii Strashko { 202884b4aa49SGrygorii Strashko int ret; 202984b4aa49SGrygorii Strashko int i; 203084b4aa49SGrygorii Strashko 203184b4aa49SGrygorii Strashko for (i = 0; i < common->port_num; i++) { 203284b4aa49SGrygorii Strashko ret = am65_cpsw_nuss_init_port_ndev(common, i); 203384b4aa49SGrygorii Strashko if (ret) 203484b4aa49SGrygorii Strashko return ret; 203584b4aa49SGrygorii Strashko } 203684b4aa49SGrygorii Strashko 203784b4aa49SGrygorii Strashko netif_napi_add(common->dma_ndev, &common->napi_rx, 2038b48b89f9SJakub Kicinski am65_cpsw_nuss_rx_poll); 203993a76530SGrygorii Strashko 204093a76530SGrygorii Strashko return ret; 204193a76530SGrygorii Strashko } 204293a76530SGrygorii Strashko 204384b4aa49SGrygorii Strashko static int am65_cpsw_nuss_ndev_add_tx_napi(struct am65_cpsw_common *common) 204493a76530SGrygorii Strashko { 2045*1a014663SRoger Quadros struct device *dev = common->dev; 2046*1a014663SRoger Quadros int i, ret = 0; 204793a76530SGrygorii Strashko 204893a76530SGrygorii Strashko for (i = 0; i < common->tx_ch_num; i++) { 204993a76530SGrygorii Strashko struct am65_cpsw_tx_chn *tx_chn = &common->tx_chns[i]; 205093a76530SGrygorii Strashko 205116d083e2SJakub Kicinski netif_napi_add_tx(common->dma_ndev, &tx_chn->napi_tx, 205216d083e2SJakub Kicinski am65_cpsw_nuss_tx_poll); 2053*1a014663SRoger Quadros 2054*1a014663SRoger Quadros ret = devm_request_irq(dev, tx_chn->irq, 2055*1a014663SRoger Quadros am65_cpsw_nuss_tx_irq, 2056*1a014663SRoger Quadros IRQF_TRIGGER_HIGH, 2057*1a014663SRoger Quadros tx_chn->tx_chn_name, tx_chn); 2058*1a014663SRoger Quadros if (ret) { 2059*1a014663SRoger Quadros dev_err(dev, "failure requesting tx%u irq %u, %d\n", 2060*1a014663SRoger Quadros tx_chn->id, tx_chn->irq, ret); 2061*1a014663SRoger Quadros goto err; 2062*1a014663SRoger Quadros } 206393a76530SGrygorii Strashko } 206493a76530SGrygorii Strashko 2065*1a014663SRoger Quadros err: 2066*1a014663SRoger Quadros return ret; 206793a76530SGrygorii Strashko } 206893a76530SGrygorii Strashko 206984b4aa49SGrygorii Strashko static void am65_cpsw_nuss_cleanup_ndev(struct am65_cpsw_common *common) 207084b4aa49SGrygorii Strashko { 207184b4aa49SGrygorii Strashko struct am65_cpsw_port *port; 207284b4aa49SGrygorii Strashko int i; 207384b4aa49SGrygorii Strashko 207484b4aa49SGrygorii Strashko for (i = 0; i < common->port_num; i++) { 207584b4aa49SGrygorii Strashko port = &common->ports[i]; 207646fb6512SZhang Changzhong if (port->ndev && port->ndev->reg_state == NETREG_REGISTERED) 207784b4aa49SGrygorii Strashko unregister_netdev(port->ndev); 207884b4aa49SGrygorii Strashko } 207984b4aa49SGrygorii Strashko } 208084b4aa49SGrygorii Strashko 20812934db9bSVignesh Raghavendra static void am65_cpsw_port_offload_fwd_mark_update(struct am65_cpsw_common *common) 20822934db9bSVignesh Raghavendra { 20832934db9bSVignesh Raghavendra int set_val = 0; 20842934db9bSVignesh Raghavendra int i; 20852934db9bSVignesh Raghavendra 20862934db9bSVignesh Raghavendra if (common->br_members == (GENMASK(common->port_num, 1) & ~common->disabled_ports_mask)) 20872934db9bSVignesh Raghavendra set_val = 1; 20882934db9bSVignesh Raghavendra 20892934db9bSVignesh Raghavendra dev_dbg(common->dev, "set offload_fwd_mark %d\n", set_val); 20902934db9bSVignesh Raghavendra 20912934db9bSVignesh Raghavendra for (i = 1; i <= common->port_num; i++) { 20922934db9bSVignesh Raghavendra struct am65_cpsw_port *port = am65_common_get_port(common, i); 2093ae03d189SGrygorii Strashko struct am65_cpsw_ndev_priv *priv; 20942934db9bSVignesh Raghavendra 2095ae03d189SGrygorii Strashko if (!port->ndev) 2096ae03d189SGrygorii Strashko continue; 2097ae03d189SGrygorii Strashko 2098ae03d189SGrygorii Strashko priv = am65_ndev_to_priv(port->ndev); 20992934db9bSVignesh Raghavendra priv->offload_fwd_mark = set_val; 21002934db9bSVignesh Raghavendra } 21012934db9bSVignesh Raghavendra } 21022934db9bSVignesh Raghavendra 21032934db9bSVignesh Raghavendra bool am65_cpsw_port_dev_check(const struct net_device *ndev) 21042934db9bSVignesh Raghavendra { 21052934db9bSVignesh Raghavendra if (ndev->netdev_ops == &am65_cpsw_nuss_netdev_ops) { 21062934db9bSVignesh Raghavendra struct am65_cpsw_common *common = am65_ndev_to_common(ndev); 21072934db9bSVignesh Raghavendra 21082934db9bSVignesh Raghavendra return !common->is_emac_mode; 21092934db9bSVignesh Raghavendra } 21102934db9bSVignesh Raghavendra 21112934db9bSVignesh Raghavendra return false; 21122934db9bSVignesh Raghavendra } 21132934db9bSVignesh Raghavendra 21142f5dc00fSVladimir Oltean static int am65_cpsw_netdevice_port_link(struct net_device *ndev, 21152f5dc00fSVladimir Oltean struct net_device *br_ndev, 21162f5dc00fSVladimir Oltean struct netlink_ext_ack *extack) 21172934db9bSVignesh Raghavendra { 21182934db9bSVignesh Raghavendra struct am65_cpsw_common *common = am65_ndev_to_common(ndev); 21192934db9bSVignesh Raghavendra struct am65_cpsw_ndev_priv *priv = am65_ndev_to_priv(ndev); 21202f5dc00fSVladimir Oltean int err; 21212934db9bSVignesh Raghavendra 21222934db9bSVignesh Raghavendra if (!common->br_members) { 21232934db9bSVignesh Raghavendra common->hw_bridge_dev = br_ndev; 21242934db9bSVignesh Raghavendra } else { 21252934db9bSVignesh Raghavendra /* This is adding the port to a second bridge, this is 21262934db9bSVignesh Raghavendra * unsupported 21272934db9bSVignesh Raghavendra */ 21282934db9bSVignesh Raghavendra if (common->hw_bridge_dev != br_ndev) 21292934db9bSVignesh Raghavendra return -EOPNOTSUPP; 21302934db9bSVignesh Raghavendra } 21312934db9bSVignesh Raghavendra 21324e51bf44SVladimir Oltean err = switchdev_bridge_port_offload(ndev, ndev, NULL, NULL, NULL, 213347211192STobias Waldekranz false, extack); 21342f5dc00fSVladimir Oltean if (err) 21352f5dc00fSVladimir Oltean return err; 21362f5dc00fSVladimir Oltean 21372934db9bSVignesh Raghavendra common->br_members |= BIT(priv->port->port_id); 21382934db9bSVignesh Raghavendra 21392934db9bSVignesh Raghavendra am65_cpsw_port_offload_fwd_mark_update(common); 21402934db9bSVignesh Raghavendra 21412934db9bSVignesh Raghavendra return NOTIFY_DONE; 21422934db9bSVignesh Raghavendra } 21432934db9bSVignesh Raghavendra 21442934db9bSVignesh Raghavendra static void am65_cpsw_netdevice_port_unlink(struct net_device *ndev) 21452934db9bSVignesh Raghavendra { 21462934db9bSVignesh Raghavendra struct am65_cpsw_common *common = am65_ndev_to_common(ndev); 21472934db9bSVignesh Raghavendra struct am65_cpsw_ndev_priv *priv = am65_ndev_to_priv(ndev); 21482934db9bSVignesh Raghavendra 21494e51bf44SVladimir Oltean switchdev_bridge_port_unoffload(ndev, NULL, NULL, NULL); 21502f5dc00fSVladimir Oltean 21512934db9bSVignesh Raghavendra common->br_members &= ~BIT(priv->port->port_id); 21522934db9bSVignesh Raghavendra 21532934db9bSVignesh Raghavendra am65_cpsw_port_offload_fwd_mark_update(common); 21542934db9bSVignesh Raghavendra 21552934db9bSVignesh Raghavendra if (!common->br_members) 21562934db9bSVignesh Raghavendra common->hw_bridge_dev = NULL; 21572934db9bSVignesh Raghavendra } 21582934db9bSVignesh Raghavendra 21592934db9bSVignesh Raghavendra /* netdev notifier */ 21602934db9bSVignesh Raghavendra static int am65_cpsw_netdevice_event(struct notifier_block *unused, 21612934db9bSVignesh Raghavendra unsigned long event, void *ptr) 21622934db9bSVignesh Raghavendra { 21632f5dc00fSVladimir Oltean struct netlink_ext_ack *extack = netdev_notifier_info_to_extack(ptr); 21642934db9bSVignesh Raghavendra struct net_device *ndev = netdev_notifier_info_to_dev(ptr); 21652934db9bSVignesh Raghavendra struct netdev_notifier_changeupper_info *info; 21662934db9bSVignesh Raghavendra int ret = NOTIFY_DONE; 21672934db9bSVignesh Raghavendra 21682934db9bSVignesh Raghavendra if (!am65_cpsw_port_dev_check(ndev)) 21692934db9bSVignesh Raghavendra return NOTIFY_DONE; 21702934db9bSVignesh Raghavendra 21712934db9bSVignesh Raghavendra switch (event) { 21722934db9bSVignesh Raghavendra case NETDEV_CHANGEUPPER: 21732934db9bSVignesh Raghavendra info = ptr; 21742934db9bSVignesh Raghavendra 21752934db9bSVignesh Raghavendra if (netif_is_bridge_master(info->upper_dev)) { 21762934db9bSVignesh Raghavendra if (info->linking) 21772f5dc00fSVladimir Oltean ret = am65_cpsw_netdevice_port_link(ndev, 21782f5dc00fSVladimir Oltean info->upper_dev, 21792f5dc00fSVladimir Oltean extack); 21802934db9bSVignesh Raghavendra else 21812934db9bSVignesh Raghavendra am65_cpsw_netdevice_port_unlink(ndev); 21822934db9bSVignesh Raghavendra } 21832934db9bSVignesh Raghavendra break; 21842934db9bSVignesh Raghavendra default: 21852934db9bSVignesh Raghavendra return NOTIFY_DONE; 21862934db9bSVignesh Raghavendra } 21872934db9bSVignesh Raghavendra 21882934db9bSVignesh Raghavendra return notifier_from_errno(ret); 21892934db9bSVignesh Raghavendra } 21902934db9bSVignesh Raghavendra 21912934db9bSVignesh Raghavendra static int am65_cpsw_register_notifiers(struct am65_cpsw_common *cpsw) 21922934db9bSVignesh Raghavendra { 21932934db9bSVignesh Raghavendra int ret = 0; 21942934db9bSVignesh Raghavendra 21952934db9bSVignesh Raghavendra if (AM65_CPSW_IS_CPSW2G(cpsw) || 21962934db9bSVignesh Raghavendra !IS_REACHABLE(CONFIG_TI_K3_AM65_CPSW_SWITCHDEV)) 21972934db9bSVignesh Raghavendra return 0; 21982934db9bSVignesh Raghavendra 21992934db9bSVignesh Raghavendra cpsw->am65_cpsw_netdevice_nb.notifier_call = &am65_cpsw_netdevice_event; 22002934db9bSVignesh Raghavendra ret = register_netdevice_notifier(&cpsw->am65_cpsw_netdevice_nb); 22012934db9bSVignesh Raghavendra if (ret) { 22022934db9bSVignesh Raghavendra dev_err(cpsw->dev, "can't register netdevice notifier\n"); 22032934db9bSVignesh Raghavendra return ret; 22042934db9bSVignesh Raghavendra } 22052934db9bSVignesh Raghavendra 220686e8b070SVignesh Raghavendra ret = am65_cpsw_switchdev_register_notifiers(cpsw); 220786e8b070SVignesh Raghavendra if (ret) 220886e8b070SVignesh Raghavendra unregister_netdevice_notifier(&cpsw->am65_cpsw_netdevice_nb); 220986e8b070SVignesh Raghavendra 22102934db9bSVignesh Raghavendra return ret; 22112934db9bSVignesh Raghavendra } 22122934db9bSVignesh Raghavendra 22132934db9bSVignesh Raghavendra static void am65_cpsw_unregister_notifiers(struct am65_cpsw_common *cpsw) 22142934db9bSVignesh Raghavendra { 22152934db9bSVignesh Raghavendra if (AM65_CPSW_IS_CPSW2G(cpsw) || 22162934db9bSVignesh Raghavendra !IS_REACHABLE(CONFIG_TI_K3_AM65_CPSW_SWITCHDEV)) 22172934db9bSVignesh Raghavendra return; 22182934db9bSVignesh Raghavendra 221986e8b070SVignesh Raghavendra am65_cpsw_switchdev_unregister_notifiers(cpsw); 22202934db9bSVignesh Raghavendra unregister_netdevice_notifier(&cpsw->am65_cpsw_netdevice_nb); 22212934db9bSVignesh Raghavendra } 22222934db9bSVignesh Raghavendra 222358356eb3SVignesh Raghavendra static const struct devlink_ops am65_cpsw_devlink_ops = {}; 222458356eb3SVignesh Raghavendra 222558356eb3SVignesh Raghavendra static void am65_cpsw_init_stp_ale_entry(struct am65_cpsw_common *cpsw) 222658356eb3SVignesh Raghavendra { 222758356eb3SVignesh Raghavendra cpsw_ale_add_mcast(cpsw->ale, eth_stp_addr, ALE_PORT_HOST, ALE_SUPER, 0, 222858356eb3SVignesh Raghavendra ALE_MCAST_BLOCK_LEARN_FWD); 222958356eb3SVignesh Raghavendra } 223058356eb3SVignesh Raghavendra 223158356eb3SVignesh Raghavendra static void am65_cpsw_init_host_port_switch(struct am65_cpsw_common *common) 223258356eb3SVignesh Raghavendra { 223358356eb3SVignesh Raghavendra struct am65_cpsw_host *host = am65_common_get_host(common); 223458356eb3SVignesh Raghavendra 223558356eb3SVignesh Raghavendra writel(common->default_vlan, host->port_base + AM65_CPSW_PORT_VLAN_REG_OFFSET); 223658356eb3SVignesh Raghavendra 223758356eb3SVignesh Raghavendra am65_cpsw_init_stp_ale_entry(common); 223858356eb3SVignesh Raghavendra 223958356eb3SVignesh Raghavendra cpsw_ale_control_set(common->ale, HOST_PORT_NUM, ALE_P0_UNI_FLOOD, 1); 224058356eb3SVignesh Raghavendra dev_dbg(common->dev, "Set P0_UNI_FLOOD\n"); 224158356eb3SVignesh Raghavendra cpsw_ale_control_set(common->ale, HOST_PORT_NUM, ALE_PORT_NOLEARN, 0); 224258356eb3SVignesh Raghavendra } 224358356eb3SVignesh Raghavendra 224458356eb3SVignesh Raghavendra static void am65_cpsw_init_host_port_emac(struct am65_cpsw_common *common) 224558356eb3SVignesh Raghavendra { 224658356eb3SVignesh Raghavendra struct am65_cpsw_host *host = am65_common_get_host(common); 224758356eb3SVignesh Raghavendra 224858356eb3SVignesh Raghavendra writel(0, host->port_base + AM65_CPSW_PORT_VLAN_REG_OFFSET); 224958356eb3SVignesh Raghavendra 225058356eb3SVignesh Raghavendra cpsw_ale_control_set(common->ale, HOST_PORT_NUM, ALE_P0_UNI_FLOOD, 0); 225158356eb3SVignesh Raghavendra dev_dbg(common->dev, "unset P0_UNI_FLOOD\n"); 225258356eb3SVignesh Raghavendra 225358356eb3SVignesh Raghavendra /* learning make no sense in multi-mac mode */ 225458356eb3SVignesh Raghavendra cpsw_ale_control_set(common->ale, HOST_PORT_NUM, ALE_PORT_NOLEARN, 1); 225558356eb3SVignesh Raghavendra } 225658356eb3SVignesh Raghavendra 225758356eb3SVignesh Raghavendra static int am65_cpsw_dl_switch_mode_get(struct devlink *dl, u32 id, 225858356eb3SVignesh Raghavendra struct devlink_param_gset_ctx *ctx) 225958356eb3SVignesh Raghavendra { 226058356eb3SVignesh Raghavendra struct am65_cpsw_devlink *dl_priv = devlink_priv(dl); 226158356eb3SVignesh Raghavendra struct am65_cpsw_common *common = dl_priv->common; 226258356eb3SVignesh Raghavendra 226358356eb3SVignesh Raghavendra dev_dbg(common->dev, "%s id:%u\n", __func__, id); 226458356eb3SVignesh Raghavendra 226558356eb3SVignesh Raghavendra if (id != AM65_CPSW_DL_PARAM_SWITCH_MODE) 226658356eb3SVignesh Raghavendra return -EOPNOTSUPP; 226758356eb3SVignesh Raghavendra 226858356eb3SVignesh Raghavendra ctx->val.vbool = !common->is_emac_mode; 226958356eb3SVignesh Raghavendra 227058356eb3SVignesh Raghavendra return 0; 227158356eb3SVignesh Raghavendra } 227258356eb3SVignesh Raghavendra 227358356eb3SVignesh Raghavendra static void am65_cpsw_init_port_emac_ale(struct am65_cpsw_port *port) 227458356eb3SVignesh Raghavendra { 227558356eb3SVignesh Raghavendra struct am65_cpsw_slave_data *slave = &port->slave; 227658356eb3SVignesh Raghavendra struct am65_cpsw_common *common = port->common; 227758356eb3SVignesh Raghavendra u32 port_mask; 227858356eb3SVignesh Raghavendra 227958356eb3SVignesh Raghavendra writel(slave->port_vlan, port->port_base + AM65_CPSW_PORT_VLAN_REG_OFFSET); 228058356eb3SVignesh Raghavendra 228158356eb3SVignesh Raghavendra if (slave->mac_only) 228258356eb3SVignesh Raghavendra /* enable mac-only mode on port */ 228358356eb3SVignesh Raghavendra cpsw_ale_control_set(common->ale, port->port_id, 228458356eb3SVignesh Raghavendra ALE_PORT_MACONLY, 1); 228558356eb3SVignesh Raghavendra 228658356eb3SVignesh Raghavendra cpsw_ale_control_set(common->ale, port->port_id, ALE_PORT_NOLEARN, 1); 228758356eb3SVignesh Raghavendra 228858356eb3SVignesh Raghavendra port_mask = BIT(port->port_id) | ALE_PORT_HOST; 228958356eb3SVignesh Raghavendra 229058356eb3SVignesh Raghavendra cpsw_ale_add_ucast(common->ale, port->ndev->dev_addr, 229158356eb3SVignesh Raghavendra HOST_PORT_NUM, ALE_SECURE, slave->port_vlan); 229258356eb3SVignesh Raghavendra cpsw_ale_add_mcast(common->ale, port->ndev->broadcast, 229358356eb3SVignesh Raghavendra port_mask, ALE_VLAN, slave->port_vlan, ALE_MCAST_FWD_2); 229458356eb3SVignesh Raghavendra } 229558356eb3SVignesh Raghavendra 229658356eb3SVignesh Raghavendra static void am65_cpsw_init_port_switch_ale(struct am65_cpsw_port *port) 229758356eb3SVignesh Raghavendra { 229858356eb3SVignesh Raghavendra struct am65_cpsw_slave_data *slave = &port->slave; 229958356eb3SVignesh Raghavendra struct am65_cpsw_common *cpsw = port->common; 230058356eb3SVignesh Raghavendra u32 port_mask; 230158356eb3SVignesh Raghavendra 230258356eb3SVignesh Raghavendra cpsw_ale_control_set(cpsw->ale, port->port_id, 230358356eb3SVignesh Raghavendra ALE_PORT_NOLEARN, 0); 230458356eb3SVignesh Raghavendra 230558356eb3SVignesh Raghavendra cpsw_ale_add_ucast(cpsw->ale, port->ndev->dev_addr, 230658356eb3SVignesh Raghavendra HOST_PORT_NUM, ALE_SECURE | ALE_BLOCKED | ALE_VLAN, 230758356eb3SVignesh Raghavendra slave->port_vlan); 230858356eb3SVignesh Raghavendra 230958356eb3SVignesh Raghavendra port_mask = BIT(port->port_id) | ALE_PORT_HOST; 231058356eb3SVignesh Raghavendra 231158356eb3SVignesh Raghavendra cpsw_ale_add_mcast(cpsw->ale, port->ndev->broadcast, 231258356eb3SVignesh Raghavendra port_mask, ALE_VLAN, slave->port_vlan, 231358356eb3SVignesh Raghavendra ALE_MCAST_FWD_2); 231458356eb3SVignesh Raghavendra 231558356eb3SVignesh Raghavendra writel(slave->port_vlan, port->port_base + AM65_CPSW_PORT_VLAN_REG_OFFSET); 231658356eb3SVignesh Raghavendra 231758356eb3SVignesh Raghavendra cpsw_ale_control_set(cpsw->ale, port->port_id, 231858356eb3SVignesh Raghavendra ALE_PORT_MACONLY, 0); 231958356eb3SVignesh Raghavendra } 232058356eb3SVignesh Raghavendra 232158356eb3SVignesh Raghavendra static int am65_cpsw_dl_switch_mode_set(struct devlink *dl, u32 id, 232258356eb3SVignesh Raghavendra struct devlink_param_gset_ctx *ctx) 232358356eb3SVignesh Raghavendra { 232458356eb3SVignesh Raghavendra struct am65_cpsw_devlink *dl_priv = devlink_priv(dl); 232558356eb3SVignesh Raghavendra struct am65_cpsw_common *cpsw = dl_priv->common; 232658356eb3SVignesh Raghavendra bool switch_en = ctx->val.vbool; 232758356eb3SVignesh Raghavendra bool if_running = false; 232858356eb3SVignesh Raghavendra int i; 232958356eb3SVignesh Raghavendra 233058356eb3SVignesh Raghavendra dev_dbg(cpsw->dev, "%s id:%u\n", __func__, id); 233158356eb3SVignesh Raghavendra 233258356eb3SVignesh Raghavendra if (id != AM65_CPSW_DL_PARAM_SWITCH_MODE) 233358356eb3SVignesh Raghavendra return -EOPNOTSUPP; 233458356eb3SVignesh Raghavendra 233558356eb3SVignesh Raghavendra if (switch_en == !cpsw->is_emac_mode) 233658356eb3SVignesh Raghavendra return 0; 233758356eb3SVignesh Raghavendra 233858356eb3SVignesh Raghavendra if (!switch_en && cpsw->br_members) { 233958356eb3SVignesh Raghavendra dev_err(cpsw->dev, "Remove ports from bridge before disabling switch mode\n"); 234058356eb3SVignesh Raghavendra return -EINVAL; 234158356eb3SVignesh Raghavendra } 234258356eb3SVignesh Raghavendra 234358356eb3SVignesh Raghavendra rtnl_lock(); 234458356eb3SVignesh Raghavendra 234558356eb3SVignesh Raghavendra cpsw->is_emac_mode = !switch_en; 234658356eb3SVignesh Raghavendra 234758356eb3SVignesh Raghavendra for (i = 0; i < cpsw->port_num; i++) { 234858356eb3SVignesh Raghavendra struct net_device *sl_ndev = cpsw->ports[i].ndev; 234958356eb3SVignesh Raghavendra 235058356eb3SVignesh Raghavendra if (!sl_ndev || !netif_running(sl_ndev)) 235158356eb3SVignesh Raghavendra continue; 235258356eb3SVignesh Raghavendra 235358356eb3SVignesh Raghavendra if_running = true; 235458356eb3SVignesh Raghavendra } 235558356eb3SVignesh Raghavendra 235658356eb3SVignesh Raghavendra if (!if_running) { 235758356eb3SVignesh Raghavendra /* all ndevs are down */ 235858356eb3SVignesh Raghavendra for (i = 0; i < cpsw->port_num; i++) { 235958356eb3SVignesh Raghavendra struct net_device *sl_ndev = cpsw->ports[i].ndev; 236058356eb3SVignesh Raghavendra struct am65_cpsw_slave_data *slave; 236158356eb3SVignesh Raghavendra 236258356eb3SVignesh Raghavendra if (!sl_ndev) 236358356eb3SVignesh Raghavendra continue; 236458356eb3SVignesh Raghavendra 236558356eb3SVignesh Raghavendra slave = am65_ndev_to_slave(sl_ndev); 236658356eb3SVignesh Raghavendra if (switch_en) 236758356eb3SVignesh Raghavendra slave->port_vlan = cpsw->default_vlan; 236858356eb3SVignesh Raghavendra else 236958356eb3SVignesh Raghavendra slave->port_vlan = 0; 237058356eb3SVignesh Raghavendra } 237158356eb3SVignesh Raghavendra 237258356eb3SVignesh Raghavendra goto exit; 237358356eb3SVignesh Raghavendra } 237458356eb3SVignesh Raghavendra 237558356eb3SVignesh Raghavendra cpsw_ale_control_set(cpsw->ale, 0, ALE_BYPASS, 1); 237658356eb3SVignesh Raghavendra /* clean up ALE table */ 237758356eb3SVignesh Raghavendra cpsw_ale_control_set(cpsw->ale, HOST_PORT_NUM, ALE_CLEAR, 1); 237858356eb3SVignesh Raghavendra cpsw_ale_control_get(cpsw->ale, HOST_PORT_NUM, ALE_AGEOUT); 237958356eb3SVignesh Raghavendra 238058356eb3SVignesh Raghavendra if (switch_en) { 238158356eb3SVignesh Raghavendra dev_info(cpsw->dev, "Enable switch mode\n"); 238258356eb3SVignesh Raghavendra 238358356eb3SVignesh Raghavendra am65_cpsw_init_host_port_switch(cpsw); 238458356eb3SVignesh Raghavendra 238558356eb3SVignesh Raghavendra for (i = 0; i < cpsw->port_num; i++) { 238658356eb3SVignesh Raghavendra struct net_device *sl_ndev = cpsw->ports[i].ndev; 238758356eb3SVignesh Raghavendra struct am65_cpsw_slave_data *slave; 238858356eb3SVignesh Raghavendra struct am65_cpsw_port *port; 238958356eb3SVignesh Raghavendra 239058356eb3SVignesh Raghavendra if (!sl_ndev) 239158356eb3SVignesh Raghavendra continue; 239258356eb3SVignesh Raghavendra 239358356eb3SVignesh Raghavendra port = am65_ndev_to_port(sl_ndev); 239458356eb3SVignesh Raghavendra slave = am65_ndev_to_slave(sl_ndev); 239558356eb3SVignesh Raghavendra slave->port_vlan = cpsw->default_vlan; 239658356eb3SVignesh Raghavendra 239758356eb3SVignesh Raghavendra if (netif_running(sl_ndev)) 239858356eb3SVignesh Raghavendra am65_cpsw_init_port_switch_ale(port); 239958356eb3SVignesh Raghavendra } 240058356eb3SVignesh Raghavendra 240158356eb3SVignesh Raghavendra } else { 240258356eb3SVignesh Raghavendra dev_info(cpsw->dev, "Disable switch mode\n"); 240358356eb3SVignesh Raghavendra 240458356eb3SVignesh Raghavendra am65_cpsw_init_host_port_emac(cpsw); 240558356eb3SVignesh Raghavendra 240658356eb3SVignesh Raghavendra for (i = 0; i < cpsw->port_num; i++) { 240758356eb3SVignesh Raghavendra struct net_device *sl_ndev = cpsw->ports[i].ndev; 240858356eb3SVignesh Raghavendra struct am65_cpsw_port *port; 240958356eb3SVignesh Raghavendra 241058356eb3SVignesh Raghavendra if (!sl_ndev) 241158356eb3SVignesh Raghavendra continue; 241258356eb3SVignesh Raghavendra 241358356eb3SVignesh Raghavendra port = am65_ndev_to_port(sl_ndev); 241458356eb3SVignesh Raghavendra port->slave.port_vlan = 0; 241558356eb3SVignesh Raghavendra if (netif_running(sl_ndev)) 241658356eb3SVignesh Raghavendra am65_cpsw_init_port_emac_ale(port); 241758356eb3SVignesh Raghavendra } 241858356eb3SVignesh Raghavendra } 241958356eb3SVignesh Raghavendra cpsw_ale_control_set(cpsw->ale, HOST_PORT_NUM, ALE_BYPASS, 0); 242058356eb3SVignesh Raghavendra exit: 242158356eb3SVignesh Raghavendra rtnl_unlock(); 242258356eb3SVignesh Raghavendra 242358356eb3SVignesh Raghavendra return 0; 242458356eb3SVignesh Raghavendra } 242558356eb3SVignesh Raghavendra 242658356eb3SVignesh Raghavendra static const struct devlink_param am65_cpsw_devlink_params[] = { 242758356eb3SVignesh Raghavendra DEVLINK_PARAM_DRIVER(AM65_CPSW_DL_PARAM_SWITCH_MODE, "switch_mode", 242858356eb3SVignesh Raghavendra DEVLINK_PARAM_TYPE_BOOL, 242958356eb3SVignesh Raghavendra BIT(DEVLINK_PARAM_CMODE_RUNTIME), 243058356eb3SVignesh Raghavendra am65_cpsw_dl_switch_mode_get, 243158356eb3SVignesh Raghavendra am65_cpsw_dl_switch_mode_set, NULL), 243258356eb3SVignesh Raghavendra }; 243358356eb3SVignesh Raghavendra 243458356eb3SVignesh Raghavendra static int am65_cpsw_nuss_register_devlink(struct am65_cpsw_common *common) 243558356eb3SVignesh Raghavendra { 243658356eb3SVignesh Raghavendra struct devlink_port_attrs attrs = {}; 243758356eb3SVignesh Raghavendra struct am65_cpsw_devlink *dl_priv; 243858356eb3SVignesh Raghavendra struct device *dev = common->dev; 243958356eb3SVignesh Raghavendra struct devlink_port *dl_port; 244058356eb3SVignesh Raghavendra struct am65_cpsw_port *port; 244158356eb3SVignesh Raghavendra int ret = 0; 244258356eb3SVignesh Raghavendra int i; 244358356eb3SVignesh Raghavendra 244458356eb3SVignesh Raghavendra common->devlink = 2445919d13a7SLeon Romanovsky devlink_alloc(&am65_cpsw_devlink_ops, sizeof(*dl_priv), dev); 244658356eb3SVignesh Raghavendra if (!common->devlink) 244758356eb3SVignesh Raghavendra return -ENOMEM; 244858356eb3SVignesh Raghavendra 244958356eb3SVignesh Raghavendra dl_priv = devlink_priv(common->devlink); 245058356eb3SVignesh Raghavendra dl_priv->common = common; 245158356eb3SVignesh Raghavendra 245258356eb3SVignesh Raghavendra /* Provide devlink hook to switch mode when multiple external ports 245358356eb3SVignesh Raghavendra * are present NUSS switchdev driver is enabled. 245458356eb3SVignesh Raghavendra */ 245558356eb3SVignesh Raghavendra if (!AM65_CPSW_IS_CPSW2G(common) && 245658356eb3SVignesh Raghavendra IS_ENABLED(CONFIG_TI_K3_AM65_CPSW_SWITCHDEV)) { 245758356eb3SVignesh Raghavendra ret = devlink_params_register(common->devlink, 245858356eb3SVignesh Raghavendra am65_cpsw_devlink_params, 245958356eb3SVignesh Raghavendra ARRAY_SIZE(am65_cpsw_devlink_params)); 246058356eb3SVignesh Raghavendra if (ret) { 246158356eb3SVignesh Raghavendra dev_err(dev, "devlink params reg fail ret:%d\n", ret); 246258356eb3SVignesh Raghavendra goto dl_unreg; 246358356eb3SVignesh Raghavendra } 246458356eb3SVignesh Raghavendra } 246558356eb3SVignesh Raghavendra 246658356eb3SVignesh Raghavendra for (i = 1; i <= common->port_num; i++) { 246758356eb3SVignesh Raghavendra port = am65_common_get_port(common, i); 246858356eb3SVignesh Raghavendra dl_port = &port->devlink_port; 246958356eb3SVignesh Raghavendra 24707e777b1bSMatthias Schiffer if (port->ndev) 247158356eb3SVignesh Raghavendra attrs.flavour = DEVLINK_PORT_FLAVOUR_PHYSICAL; 24727e777b1bSMatthias Schiffer else 24737e777b1bSMatthias Schiffer attrs.flavour = DEVLINK_PORT_FLAVOUR_UNUSED; 247458356eb3SVignesh Raghavendra attrs.phys.port_number = port->port_id; 247558356eb3SVignesh Raghavendra attrs.switch_id.id_len = sizeof(resource_size_t); 247658356eb3SVignesh Raghavendra memcpy(attrs.switch_id.id, common->switch_id, attrs.switch_id.id_len); 247758356eb3SVignesh Raghavendra devlink_port_attrs_set(dl_port, &attrs); 247858356eb3SVignesh Raghavendra 247958356eb3SVignesh Raghavendra ret = devlink_port_register(common->devlink, dl_port, port->port_id); 248058356eb3SVignesh Raghavendra if (ret) { 248158356eb3SVignesh Raghavendra dev_err(dev, "devlink_port reg fail for port %d, ret:%d\n", 248258356eb3SVignesh Raghavendra port->port_id, ret); 248358356eb3SVignesh Raghavendra goto dl_port_unreg; 248458356eb3SVignesh Raghavendra } 248558356eb3SVignesh Raghavendra } 24860d98ff22SLeon Romanovsky devlink_register(common->devlink); 248758356eb3SVignesh Raghavendra return ret; 248858356eb3SVignesh Raghavendra 248958356eb3SVignesh Raghavendra dl_port_unreg: 2490acf34954SLeon Romanovsky for (i = i - 1; i >= 1; i--) { 2491acf34954SLeon Romanovsky port = am65_common_get_port(common, i); 2492acf34954SLeon Romanovsky dl_port = &port->devlink_port; 2493acf34954SLeon Romanovsky 2494acf34954SLeon Romanovsky devlink_port_unregister(dl_port); 2495acf34954SLeon Romanovsky } 249658356eb3SVignesh Raghavendra dl_unreg: 249758356eb3SVignesh Raghavendra devlink_free(common->devlink); 249858356eb3SVignesh Raghavendra return ret; 249958356eb3SVignesh Raghavendra } 250058356eb3SVignesh Raghavendra 250158356eb3SVignesh Raghavendra static void am65_cpsw_unregister_devlink(struct am65_cpsw_common *common) 250258356eb3SVignesh Raghavendra { 2503acf34954SLeon Romanovsky struct devlink_port *dl_port; 2504acf34954SLeon Romanovsky struct am65_cpsw_port *port; 2505acf34954SLeon Romanovsky int i; 2506acf34954SLeon Romanovsky 25070d98ff22SLeon Romanovsky devlink_unregister(common->devlink); 25080d98ff22SLeon Romanovsky 2509acf34954SLeon Romanovsky for (i = 1; i <= common->port_num; i++) { 2510acf34954SLeon Romanovsky port = am65_common_get_port(common, i); 2511acf34954SLeon Romanovsky dl_port = &port->devlink_port; 2512acf34954SLeon Romanovsky 2513acf34954SLeon Romanovsky devlink_port_unregister(dl_port); 2514acf34954SLeon Romanovsky } 2515acf34954SLeon Romanovsky 251658356eb3SVignesh Raghavendra if (!AM65_CPSW_IS_CPSW2G(common) && 25170d98ff22SLeon Romanovsky IS_ENABLED(CONFIG_TI_K3_AM65_CPSW_SWITCHDEV)) 25180d98ff22SLeon Romanovsky devlink_params_unregister(common->devlink, 25190d98ff22SLeon Romanovsky am65_cpsw_devlink_params, 252058356eb3SVignesh Raghavendra ARRAY_SIZE(am65_cpsw_devlink_params)); 252158356eb3SVignesh Raghavendra 252258356eb3SVignesh Raghavendra devlink_free(common->devlink); 252358356eb3SVignesh Raghavendra } 252458356eb3SVignesh Raghavendra 252584b4aa49SGrygorii Strashko static int am65_cpsw_nuss_register_ndevs(struct am65_cpsw_common *common) 252693a76530SGrygorii Strashko { 252793a76530SGrygorii Strashko struct device *dev = common->dev; 252893a76530SGrygorii Strashko struct am65_cpsw_port *port; 252984b4aa49SGrygorii Strashko int ret = 0, i; 253093a76530SGrygorii Strashko 253184b4aa49SGrygorii Strashko ret = am65_cpsw_nuss_ndev_add_tx_napi(common); 253293a76530SGrygorii Strashko if (ret) 253384b4aa49SGrygorii Strashko return ret; 253493a76530SGrygorii Strashko 2535*1a014663SRoger Quadros ret = devm_request_irq(dev, common->rx_chns.irq, 2536*1a014663SRoger Quadros am65_cpsw_nuss_rx_irq, 2537*1a014663SRoger Quadros IRQF_TRIGGER_HIGH, dev_name(dev), common); 2538*1a014663SRoger Quadros if (ret) { 2539*1a014663SRoger Quadros dev_err(dev, "failure requesting rx irq %u, %d\n", 2540*1a014663SRoger Quadros common->rx_chns.irq, ret); 2541*1a014663SRoger Quadros return ret; 2542*1a014663SRoger Quadros } 2543*1a014663SRoger Quadros 25440680e20aSSiddharth Vadapalli ret = am65_cpsw_nuss_register_devlink(common); 25450680e20aSSiddharth Vadapalli if (ret) 25460680e20aSSiddharth Vadapalli return ret; 25470680e20aSSiddharth Vadapalli 254884b4aa49SGrygorii Strashko for (i = 0; i < common->port_num; i++) { 254984b4aa49SGrygorii Strashko port = &common->ports[i]; 255084b4aa49SGrygorii Strashko 255184b4aa49SGrygorii Strashko if (!port->ndev) 255284b4aa49SGrygorii Strashko continue; 255384b4aa49SGrygorii Strashko 2554ac73d4bfSJiri Pirko SET_NETDEV_DEVLINK_PORT(port->ndev, &port->devlink_port); 2555ac73d4bfSJiri Pirko 255693a76530SGrygorii Strashko ret = register_netdev(port->ndev); 255784b4aa49SGrygorii Strashko if (ret) { 255884b4aa49SGrygorii Strashko dev_err(dev, "error registering slave net device%i %d\n", 255984b4aa49SGrygorii Strashko i, ret); 256084b4aa49SGrygorii Strashko goto err_cleanup_ndev; 256184b4aa49SGrygorii Strashko } 256284b4aa49SGrygorii Strashko } 256384b4aa49SGrygorii Strashko 25642934db9bSVignesh Raghavendra ret = am65_cpsw_register_notifiers(common); 256558356eb3SVignesh Raghavendra if (ret) 256658356eb3SVignesh Raghavendra goto err_cleanup_ndev; 256793a76530SGrygorii Strashko 256893a76530SGrygorii Strashko /* can't auto unregister ndev using devm_add_action() due to 256993a76530SGrygorii Strashko * devres release sequence in DD core for DMA 257093a76530SGrygorii Strashko */ 257184b4aa49SGrygorii Strashko 257258356eb3SVignesh Raghavendra return 0; 25730680e20aSSiddharth Vadapalli 257484b4aa49SGrygorii Strashko err_cleanup_ndev: 257584b4aa49SGrygorii Strashko am65_cpsw_nuss_cleanup_ndev(common); 25760680e20aSSiddharth Vadapalli am65_cpsw_unregister_devlink(common); 25772934db9bSVignesh Raghavendra 257893a76530SGrygorii Strashko return ret; 257993a76530SGrygorii Strashko } 258093a76530SGrygorii Strashko 258193a76530SGrygorii Strashko int am65_cpsw_nuss_update_tx_chns(struct am65_cpsw_common *common, int num_tx) 258293a76530SGrygorii Strashko { 258393a76530SGrygorii Strashko int ret; 258493a76530SGrygorii Strashko 258593a76530SGrygorii Strashko common->tx_ch_num = num_tx; 258693a76530SGrygorii Strashko ret = am65_cpsw_nuss_init_tx_chns(common); 258793a76530SGrygorii Strashko if (ret) 258893a76530SGrygorii Strashko return ret; 258993a76530SGrygorii Strashko 259084b4aa49SGrygorii Strashko return am65_cpsw_nuss_ndev_add_tx_napi(common); 259193a76530SGrygorii Strashko } 259293a76530SGrygorii Strashko 259338389aa6SGrygorii Strashko struct am65_cpsw_soc_pdata { 259438389aa6SGrygorii Strashko u32 quirks_dis; 259538389aa6SGrygorii Strashko }; 259638389aa6SGrygorii Strashko 259738389aa6SGrygorii Strashko static const struct am65_cpsw_soc_pdata am65x_soc_sr2_0 = { 259838389aa6SGrygorii Strashko .quirks_dis = AM65_CPSW_QUIRK_I2027_NO_TX_CSUM, 259938389aa6SGrygorii Strashko }; 260038389aa6SGrygorii Strashko 260138389aa6SGrygorii Strashko static const struct soc_device_attribute am65_cpsw_socinfo[] = { 260238389aa6SGrygorii Strashko { .family = "AM65X", 260338389aa6SGrygorii Strashko .revision = "SR2.0", 260438389aa6SGrygorii Strashko .data = &am65x_soc_sr2_0 260538389aa6SGrygorii Strashko }, 260638389aa6SGrygorii Strashko {/* sentinel */} 260738389aa6SGrygorii Strashko }; 260838389aa6SGrygorii Strashko 260993a76530SGrygorii Strashko static const struct am65_cpsw_pdata am65x_sr1_0 = { 261093a76530SGrygorii Strashko .quirks = AM65_CPSW_QUIRK_I2027_NO_TX_CSUM, 26117747d4b7SGrygorii Strashko .ale_dev_id = "am65x-cpsw2g", 2612c6275c02SGrygorii Strashko .fdqring_mode = K3_RINGACC_RING_MODE_MESSAGE, 261393a76530SGrygorii Strashko }; 261493a76530SGrygorii Strashko 261538389aa6SGrygorii Strashko static const struct am65_cpsw_pdata j721e_pdata = { 261693a76530SGrygorii Strashko .quirks = 0, 26177747d4b7SGrygorii Strashko .ale_dev_id = "am65x-cpsw2g", 2618c6275c02SGrygorii Strashko .fdqring_mode = K3_RINGACC_RING_MODE_MESSAGE, 261993a76530SGrygorii Strashko }; 262093a76530SGrygorii Strashko 26214f7cce27SVignesh Raghavendra static const struct am65_cpsw_pdata am64x_cpswxg_pdata = { 26224f7cce27SVignesh Raghavendra .quirks = 0, 26234f7cce27SVignesh Raghavendra .ale_dev_id = "am64-cpswxg", 26244f7cce27SVignesh Raghavendra .fdqring_mode = K3_RINGACC_RING_MODE_RING, 26254f7cce27SVignesh Raghavendra }; 26264f7cce27SVignesh Raghavendra 262737184fc1SSiddharth Vadapalli static const struct am65_cpsw_pdata j7200_cpswxg_pdata = { 262837184fc1SSiddharth Vadapalli .quirks = 0, 262937184fc1SSiddharth Vadapalli .ale_dev_id = "am64-cpswxg", 263037184fc1SSiddharth Vadapalli .fdqring_mode = K3_RINGACC_RING_MODE_RING, 263137184fc1SSiddharth Vadapalli .extra_modes = BIT(PHY_INTERFACE_MODE_QSGMII), 263237184fc1SSiddharth Vadapalli }; 263337184fc1SSiddharth Vadapalli 263493a76530SGrygorii Strashko static const struct of_device_id am65_cpsw_nuss_of_mtable[] = { 263593a76530SGrygorii Strashko { .compatible = "ti,am654-cpsw-nuss", .data = &am65x_sr1_0}, 263638389aa6SGrygorii Strashko { .compatible = "ti,j721e-cpsw-nuss", .data = &j721e_pdata}, 26374f7cce27SVignesh Raghavendra { .compatible = "ti,am642-cpsw-nuss", .data = &am64x_cpswxg_pdata}, 263837184fc1SSiddharth Vadapalli { .compatible = "ti,j7200-cpswxg-nuss", .data = &j7200_cpswxg_pdata}, 263993a76530SGrygorii Strashko { /* sentinel */ }, 264093a76530SGrygorii Strashko }; 264193a76530SGrygorii Strashko MODULE_DEVICE_TABLE(of, am65_cpsw_nuss_of_mtable); 264293a76530SGrygorii Strashko 264338389aa6SGrygorii Strashko static void am65_cpsw_nuss_apply_socinfo(struct am65_cpsw_common *common) 264438389aa6SGrygorii Strashko { 264538389aa6SGrygorii Strashko const struct soc_device_attribute *soc; 264638389aa6SGrygorii Strashko 264738389aa6SGrygorii Strashko soc = soc_device_match(am65_cpsw_socinfo); 264838389aa6SGrygorii Strashko if (soc && soc->data) { 264938389aa6SGrygorii Strashko const struct am65_cpsw_soc_pdata *socdata = soc->data; 265038389aa6SGrygorii Strashko 265138389aa6SGrygorii Strashko /* disable quirks */ 265238389aa6SGrygorii Strashko common->pdata.quirks &= ~socdata->quirks_dis; 265338389aa6SGrygorii Strashko } 265438389aa6SGrygorii Strashko } 265538389aa6SGrygorii Strashko 265693a76530SGrygorii Strashko static int am65_cpsw_nuss_probe(struct platform_device *pdev) 265793a76530SGrygorii Strashko { 26582074f9eaSGrygorii Strashko struct cpsw_ale_params ale_params = { 0 }; 265993a76530SGrygorii Strashko const struct of_device_id *of_id; 266093a76530SGrygorii Strashko struct device *dev = &pdev->dev; 266193a76530SGrygorii Strashko struct am65_cpsw_common *common; 266293a76530SGrygorii Strashko struct device_node *node; 266393a76530SGrygorii Strashko struct resource *res; 266423015ff1SGrygorii Strashko struct clk *clk; 266558356eb3SVignesh Raghavendra u64 id_temp; 266693a76530SGrygorii Strashko int ret, i; 266793a76530SGrygorii Strashko 266893a76530SGrygorii Strashko common = devm_kzalloc(dev, sizeof(struct am65_cpsw_common), GFP_KERNEL); 266993a76530SGrygorii Strashko if (!common) 267093a76530SGrygorii Strashko return -ENOMEM; 267193a76530SGrygorii Strashko common->dev = dev; 267293a76530SGrygorii Strashko 267393a76530SGrygorii Strashko of_id = of_match_device(am65_cpsw_nuss_of_mtable, dev); 267493a76530SGrygorii Strashko if (!of_id) 267593a76530SGrygorii Strashko return -EINVAL; 267638389aa6SGrygorii Strashko common->pdata = *(const struct am65_cpsw_pdata *)of_id->data; 267738389aa6SGrygorii Strashko 267838389aa6SGrygorii Strashko am65_cpsw_nuss_apply_socinfo(common); 267993a76530SGrygorii Strashko 268093a76530SGrygorii Strashko res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "cpsw_nuss"); 268193a76530SGrygorii Strashko common->ss_base = devm_ioremap_resource(&pdev->dev, res); 268293a76530SGrygorii Strashko if (IS_ERR(common->ss_base)) 268393a76530SGrygorii Strashko return PTR_ERR(common->ss_base); 268493a76530SGrygorii Strashko common->cpsw_base = common->ss_base + AM65_CPSW_CPSW_NU_BASE; 268558356eb3SVignesh Raghavendra /* Use device's physical base address as switch id */ 268658356eb3SVignesh Raghavendra id_temp = cpu_to_be64(res->start); 268758356eb3SVignesh Raghavendra memcpy(common->switch_id, &id_temp, sizeof(res->start)); 268893a76530SGrygorii Strashko 268993a76530SGrygorii Strashko node = of_get_child_by_name(dev->of_node, "ethernet-ports"); 269093a76530SGrygorii Strashko if (!node) 269193a76530SGrygorii Strashko return -ENOENT; 269293a76530SGrygorii Strashko common->port_num = of_get_child_count(node); 26935dd89d2fSMiaoqian Lin of_node_put(node); 269493a76530SGrygorii Strashko if (common->port_num < 1 || common->port_num > AM65_CPSW_MAX_PORTS) 269593a76530SGrygorii Strashko return -ENOENT; 269693a76530SGrygorii Strashko 2697*1a014663SRoger Quadros common->rx_flow_id_base = -1; 269893a76530SGrygorii Strashko init_completion(&common->tdown_complete); 269993a76530SGrygorii Strashko common->tx_ch_num = 1; 270051824048SGrygorii Strashko common->pf_p0_rx_ptype_rrobin = false; 270158356eb3SVignesh Raghavendra common->default_vlan = 1; 270293a76530SGrygorii Strashko 270393a76530SGrygorii Strashko common->ports = devm_kcalloc(dev, common->port_num, 270493a76530SGrygorii Strashko sizeof(*common->ports), 270593a76530SGrygorii Strashko GFP_KERNEL); 270693a76530SGrygorii Strashko if (!common->ports) 270793a76530SGrygorii Strashko return -ENOMEM; 270893a76530SGrygorii Strashko 270923015ff1SGrygorii Strashko clk = devm_clk_get(dev, "fck"); 27108fbc2f9eSGrygorii Strashko if (IS_ERR(clk)) 27118fbc2f9eSGrygorii Strashko return dev_err_probe(dev, PTR_ERR(clk), "getting fck clock\n"); 271223015ff1SGrygorii Strashko common->bus_freq = clk_get_rate(clk); 271323015ff1SGrygorii Strashko 271493a76530SGrygorii Strashko pm_runtime_enable(dev); 27152240514cSMinghao Chi ret = pm_runtime_resume_and_get(dev); 271693a76530SGrygorii Strashko if (ret < 0) { 271793a76530SGrygorii Strashko pm_runtime_disable(dev); 271893a76530SGrygorii Strashko return ret; 271993a76530SGrygorii Strashko } 272093a76530SGrygorii Strashko 2721a45cfcc6SGrygorii Strashko node = of_get_child_by_name(dev->of_node, "mdio"); 2722a45cfcc6SGrygorii Strashko if (!node) { 2723a45cfcc6SGrygorii Strashko dev_warn(dev, "MDIO node not found\n"); 2724a45cfcc6SGrygorii Strashko } else if (of_device_is_available(node)) { 2725a45cfcc6SGrygorii Strashko struct platform_device *mdio_pdev; 2726a45cfcc6SGrygorii Strashko 2727a45cfcc6SGrygorii Strashko mdio_pdev = of_platform_device_create(node, NULL, dev); 2728a45cfcc6SGrygorii Strashko if (!mdio_pdev) { 2729a45cfcc6SGrygorii Strashko ret = -ENODEV; 2730a45cfcc6SGrygorii Strashko goto err_pm_clear; 2731a45cfcc6SGrygorii Strashko } 2732a45cfcc6SGrygorii Strashko 2733a45cfcc6SGrygorii Strashko common->mdio_dev = &mdio_pdev->dev; 2734a45cfcc6SGrygorii Strashko } 2735a45cfcc6SGrygorii Strashko of_node_put(node); 273693a76530SGrygorii Strashko 273793a76530SGrygorii Strashko am65_cpsw_nuss_get_ver(common); 273893a76530SGrygorii Strashko 2739*1a014663SRoger Quadros /* init tx channels */ 2740*1a014663SRoger Quadros ret = am65_cpsw_nuss_init_tx_chns(common); 2741*1a014663SRoger Quadros if (ret) 2742*1a014663SRoger Quadros goto err_of_clear; 2743*1a014663SRoger Quadros ret = am65_cpsw_nuss_init_rx_chns(common); 2744*1a014663SRoger Quadros if (ret) 2745*1a014663SRoger Quadros goto err_of_clear; 2746*1a014663SRoger Quadros 274793a76530SGrygorii Strashko ret = am65_cpsw_nuss_init_host_p(common); 274893a76530SGrygorii Strashko if (ret) 274993a76530SGrygorii Strashko goto err_of_clear; 275093a76530SGrygorii Strashko 275193a76530SGrygorii Strashko ret = am65_cpsw_nuss_init_slave_ports(common); 275293a76530SGrygorii Strashko if (ret) 275393a76530SGrygorii Strashko goto err_of_clear; 275493a76530SGrygorii Strashko 275593a76530SGrygorii Strashko /* init common data */ 275693a76530SGrygorii Strashko ale_params.dev = dev; 275793a76530SGrygorii Strashko ale_params.ale_ageout = AM65_CPSW_ALE_AGEOUT_DEFAULT; 275893a76530SGrygorii Strashko ale_params.ale_ports = common->port_num + 1; 275993a76530SGrygorii Strashko ale_params.ale_regs = common->cpsw_base + AM65_CPSW_NU_ALE_BASE; 27607747d4b7SGrygorii Strashko ale_params.dev_id = common->pdata.ale_dev_id; 276123015ff1SGrygorii Strashko ale_params.bus_freq = common->bus_freq; 276293a76530SGrygorii Strashko 276393a76530SGrygorii Strashko common->ale = cpsw_ale_create(&ale_params); 27641401cf60SWei Yongjun if (IS_ERR(common->ale)) { 276593a76530SGrygorii Strashko dev_err(dev, "error initializing ale engine\n"); 27661401cf60SWei Yongjun ret = PTR_ERR(common->ale); 276793a76530SGrygorii Strashko goto err_of_clear; 276893a76530SGrygorii Strashko } 276993a76530SGrygorii Strashko 2770b1f66a5bSGrygorii Strashko ret = am65_cpsw_init_cpts(common); 2771b1f66a5bSGrygorii Strashko if (ret) 2772b1f66a5bSGrygorii Strashko goto err_of_clear; 2773b1f66a5bSGrygorii Strashko 277493a76530SGrygorii Strashko /* init ports */ 277593a76530SGrygorii Strashko for (i = 0; i < common->port_num; i++) 277693a76530SGrygorii Strashko am65_cpsw_nuss_slave_disable_unused(&common->ports[i]); 277793a76530SGrygorii Strashko 277893a76530SGrygorii Strashko dev_set_drvdata(dev, common); 277993a76530SGrygorii Strashko 278058356eb3SVignesh Raghavendra common->is_emac_mode = true; 278158356eb3SVignesh Raghavendra 278284b4aa49SGrygorii Strashko ret = am65_cpsw_nuss_init_ndevs(common); 278393a76530SGrygorii Strashko if (ret) 2784e8609e69SSiddharth Vadapalli goto err_free_phylink; 278593a76530SGrygorii Strashko 278684b4aa49SGrygorii Strashko ret = am65_cpsw_nuss_register_ndevs(common); 278793a76530SGrygorii Strashko if (ret) 2788e8609e69SSiddharth Vadapalli goto err_free_phylink; 278993a76530SGrygorii Strashko 279093a76530SGrygorii Strashko pm_runtime_put(dev); 279193a76530SGrygorii Strashko return 0; 279293a76530SGrygorii Strashko 2793e8609e69SSiddharth Vadapalli err_free_phylink: 2794e8609e69SSiddharth Vadapalli am65_cpsw_nuss_phylink_cleanup(common); 279593a76530SGrygorii Strashko err_of_clear: 2796a45cfcc6SGrygorii Strashko of_platform_device_destroy(common->mdio_dev, NULL); 2797a45cfcc6SGrygorii Strashko err_pm_clear: 279893a76530SGrygorii Strashko pm_runtime_put_sync(dev); 279993a76530SGrygorii Strashko pm_runtime_disable(dev); 280093a76530SGrygorii Strashko return ret; 280193a76530SGrygorii Strashko } 280293a76530SGrygorii Strashko 280393a76530SGrygorii Strashko static int am65_cpsw_nuss_remove(struct platform_device *pdev) 280493a76530SGrygorii Strashko { 280593a76530SGrygorii Strashko struct device *dev = &pdev->dev; 280693a76530SGrygorii Strashko struct am65_cpsw_common *common; 280793a76530SGrygorii Strashko int ret; 280893a76530SGrygorii Strashko 280993a76530SGrygorii Strashko common = dev_get_drvdata(dev); 281093a76530SGrygorii Strashko 28112240514cSMinghao Chi ret = pm_runtime_resume_and_get(&pdev->dev); 28122240514cSMinghao Chi if (ret < 0) 281393a76530SGrygorii Strashko return ret; 281493a76530SGrygorii Strashko 281558356eb3SVignesh Raghavendra am65_cpsw_unregister_devlink(common); 28162934db9bSVignesh Raghavendra am65_cpsw_unregister_notifiers(common); 281758356eb3SVignesh Raghavendra 281893a76530SGrygorii Strashko /* must unregister ndevs here because DD release_driver routine calls 281993a76530SGrygorii Strashko * dma_deconfigure(dev) before devres_release_all(dev) 282093a76530SGrygorii Strashko */ 282193a76530SGrygorii Strashko am65_cpsw_nuss_cleanup_ndev(common); 28221a0c016aSRoger Quadros am65_cpsw_nuss_phylink_cleanup(common); 282393a76530SGrygorii Strashko 2824a45cfcc6SGrygorii Strashko of_platform_device_destroy(common->mdio_dev, NULL); 282593a76530SGrygorii Strashko 282693a76530SGrygorii Strashko pm_runtime_put_sync(&pdev->dev); 282793a76530SGrygorii Strashko pm_runtime_disable(&pdev->dev); 282893a76530SGrygorii Strashko return 0; 282993a76530SGrygorii Strashko } 283093a76530SGrygorii Strashko 283193a76530SGrygorii Strashko static struct platform_driver am65_cpsw_nuss_driver = { 283293a76530SGrygorii Strashko .driver = { 283393a76530SGrygorii Strashko .name = AM65_CPSW_DRV_NAME, 283493a76530SGrygorii Strashko .of_match_table = am65_cpsw_nuss_of_mtable, 283593a76530SGrygorii Strashko }, 283693a76530SGrygorii Strashko .probe = am65_cpsw_nuss_probe, 283793a76530SGrygorii Strashko .remove = am65_cpsw_nuss_remove, 283893a76530SGrygorii Strashko }; 283993a76530SGrygorii Strashko 284093a76530SGrygorii Strashko module_platform_driver(am65_cpsw_nuss_driver); 284193a76530SGrygorii Strashko 284293a76530SGrygorii Strashko MODULE_LICENSE("GPL v2"); 284393a76530SGrygorii Strashko MODULE_AUTHOR("Grygorii Strashko <grygorii.strashko@ti.com>"); 284493a76530SGrygorii Strashko MODULE_DESCRIPTION("TI AM65 CPSW Ethernet driver"); 2845