diff options
Diffstat (limited to 'drivers/net/ethernet/ti/cpsw.c')
| -rw-r--r-- | drivers/net/ethernet/ti/cpsw.c | 2713 |
1 files changed, 1255 insertions, 1458 deletions
diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c index 05a1674e204f..54c24cd3d3be 100644 --- a/drivers/net/ethernet/ti/cpsw.c +++ b/drivers/net/ethernet/ti/cpsw.c @@ -1,16 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Texas Instruments Ethernet Switch Driver * * Copyright (C) 2012 Texas Instruments * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation version 2. - * - * This program is distributed "as is" WITHOUT ANY WARRANTY of any - * kind, whether express or implied; without even the implied warranty - * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/kernel.h> @@ -26,130 +19,33 @@ #include <linux/netdevice.h> #include <linux/net_tstamp.h> #include <linux/phy.h> +#include <linux/phy/phy.h> #include <linux/workqueue.h> #include <linux/delay.h> #include <linux/pm_runtime.h> +#include <linux/gpio/consumer.h> #include <linux/of.h> +#include <linux/of_mdio.h> #include <linux/of_net.h> -#include <linux/of_device.h> +#include <linux/of_platform.h> #include <linux/if_vlan.h> +#include <linux/kmemleak.h> +#include <linux/sys_soc.h> +#include <net/page_pool/helpers.h> +#include <linux/bpf.h> +#include <linux/bpf_trace.h> -#include <linux/platform_data/cpsw.h> #include <linux/pinctrl/consumer.h> +#include <net/pkt_cls.h> +#include "cpsw.h" #include "cpsw_ale.h" +#include "cpsw_priv.h" +#include "cpsw_sl.h" #include "cpts.h" #include "davinci_cpdma.h" -#define CPSW_DEBUG (NETIF_MSG_HW | NETIF_MSG_WOL | \ - NETIF_MSG_DRV | NETIF_MSG_LINK | \ - NETIF_MSG_IFUP | NETIF_MSG_INTR | \ - NETIF_MSG_PROBE | NETIF_MSG_TIMER | \ - NETIF_MSG_IFDOWN | NETIF_MSG_RX_ERR | \ - NETIF_MSG_TX_ERR | NETIF_MSG_TX_DONE | \ - NETIF_MSG_PKTDATA | NETIF_MSG_TX_QUEUED | \ - NETIF_MSG_RX_STATUS) - -#define cpsw_info(priv, type, format, ...) \ -do { \ - if (netif_msg_##type(priv) && net_ratelimit()) \ - dev_info(priv->dev, format, ## __VA_ARGS__); \ -} while (0) - -#define cpsw_err(priv, type, format, ...) \ -do { \ - if (netif_msg_##type(priv) && net_ratelimit()) \ - dev_err(priv->dev, format, ## __VA_ARGS__); \ -} while (0) - -#define cpsw_dbg(priv, type, format, ...) \ -do { \ - if (netif_msg_##type(priv) && net_ratelimit()) \ - dev_dbg(priv->dev, format, ## __VA_ARGS__); \ -} while (0) - -#define cpsw_notice(priv, type, format, ...) \ -do { \ - if (netif_msg_##type(priv) && net_ratelimit()) \ - dev_notice(priv->dev, format, ## __VA_ARGS__); \ -} while (0) - -#define ALE_ALL_PORTS 0x7 - -#define CPSW_MAJOR_VERSION(reg) (reg >> 8 & 0x7) -#define CPSW_MINOR_VERSION(reg) (reg & 0xff) -#define CPSW_RTL_VERSION(reg) ((reg >> 11) & 0x1f) - -#define CPSW_VERSION_1 0x19010a -#define CPSW_VERSION_2 0x19010c - -#define HOST_PORT_NUM 0 -#define SLIVER_SIZE 0x40 - -#define CPSW1_HOST_PORT_OFFSET 0x028 -#define CPSW1_SLAVE_OFFSET 0x050 -#define CPSW1_SLAVE_SIZE 0x040 -#define CPSW1_CPDMA_OFFSET 0x100 -#define CPSW1_STATERAM_OFFSET 0x200 -#define CPSW1_CPTS_OFFSET 0x500 -#define CPSW1_ALE_OFFSET 0x600 -#define CPSW1_SLIVER_OFFSET 0x700 - -#define CPSW2_HOST_PORT_OFFSET 0x108 -#define CPSW2_SLAVE_OFFSET 0x200 -#define CPSW2_SLAVE_SIZE 0x100 -#define CPSW2_CPDMA_OFFSET 0x800 -#define CPSW2_STATERAM_OFFSET 0xa00 -#define CPSW2_CPTS_OFFSET 0xc00 -#define CPSW2_ALE_OFFSET 0xd00 -#define CPSW2_SLIVER_OFFSET 0xd80 -#define CPSW2_BD_OFFSET 0x2000 - -#define CPDMA_RXTHRESH 0x0c0 -#define CPDMA_RXFREE 0x0e0 -#define CPDMA_TXHDP 0x00 -#define CPDMA_RXHDP 0x20 -#define CPDMA_TXCP 0x40 -#define CPDMA_RXCP 0x60 - -#define CPSW_POLL_WEIGHT 64 -#define CPSW_MIN_PACKET_SIZE 60 -#define CPSW_MAX_PACKET_SIZE (1500 + 14 + 4 + 4) - -#define RX_PRIORITY_MAPPING 0x76543210 -#define TX_PRIORITY_MAPPING 0x33221100 -#define CPDMA_TX_PRIORITY_MAP 0x76543210 - -#define CPSW_VLAN_AWARE BIT(1) -#define CPSW_ALE_VLAN_AWARE 1 - -#define CPSW_FIFO_NORMAL_MODE (0 << 15) -#define CPSW_FIFO_DUAL_MAC_MODE (1 << 15) -#define CPSW_FIFO_RATE_LIMIT_MODE (2 << 15) - -#define CPSW_INTPACEEN (0x3f << 16) -#define CPSW_INTPRESCALE_MASK (0x7FF << 0) -#define CPSW_CMINTMAX_CNT 63 -#define CPSW_CMINTMIN_CNT 2 -#define CPSW_CMINTMAX_INTVL (1000 / CPSW_CMINTMIN_CNT) -#define CPSW_CMINTMIN_INTVL ((1000 / CPSW_CMINTMAX_CNT) + 1) - -#define cpsw_enable_irq(priv) \ - do { \ - u32 i; \ - for (i = 0; i < priv->num_irqs; i++) \ - enable_irq(priv->irqs_table[i]); \ - } while (0); -#define cpsw_disable_irq(priv) \ - do { \ - u32 i; \ - for (i = 0; i < priv->num_irqs; i++) \ - disable_irq_nosync(priv->irqs_table[i]); \ - } while (0); - -#define cpsw_slave_index(priv) \ - ((priv->data.dual_emac) ? priv->emac_port : \ - priv->data.active_slave) +#include <net/pkt_sched.h> static int debug_level; module_param(debug_level, int, 0); @@ -163,432 +59,400 @@ static int rx_packet_max = CPSW_MAX_PACKET_SIZE; module_param(rx_packet_max, int, 0); MODULE_PARM_DESC(rx_packet_max, "maximum receive packet size (bytes)"); -struct cpsw_wr_regs { - u32 id_ver; - u32 soft_reset; - u32 control; - u32 int_control; - u32 rx_thresh_en; - u32 rx_en; - u32 tx_en; - u32 misc_en; - u32 mem_allign1[8]; - u32 rx_thresh_stat; - u32 rx_stat; - u32 tx_stat; - u32 misc_stat; - u32 mem_allign2[8]; - u32 rx_imax; - u32 tx_imax; - -}; - -struct cpsw_ss_regs { - u32 id_ver; - u32 control; - u32 soft_reset; - u32 stat_port_en; - u32 ptype; - u32 soft_idle; - u32 thru_rate; - u32 gap_thresh; - u32 tx_start_wds; - u32 flow_control; - u32 vlan_ltype; - u32 ts_ltype; - u32 dlr_ltype; -}; - -/* CPSW_PORT_V1 */ -#define CPSW1_MAX_BLKS 0x00 /* Maximum FIFO Blocks */ -#define CPSW1_BLK_CNT 0x04 /* FIFO Block Usage Count (Read Only) */ -#define CPSW1_TX_IN_CTL 0x08 /* Transmit FIFO Control */ -#define CPSW1_PORT_VLAN 0x0c /* VLAN Register */ -#define CPSW1_TX_PRI_MAP 0x10 /* Tx Header Priority to Switch Pri Mapping */ -#define CPSW1_TS_CTL 0x14 /* Time Sync Control */ -#define CPSW1_TS_SEQ_LTYPE 0x18 /* Time Sync Sequence ID Offset and Msg Type */ -#define CPSW1_TS_VLAN 0x1c /* Time Sync VLAN1 and VLAN2 */ - -/* CPSW_PORT_V2 */ -#define CPSW2_CONTROL 0x00 /* Control Register */ -#define CPSW2_MAX_BLKS 0x08 /* Maximum FIFO Blocks */ -#define CPSW2_BLK_CNT 0x0c /* FIFO Block Usage Count (Read Only) */ -#define CPSW2_TX_IN_CTL 0x10 /* Transmit FIFO Control */ -#define CPSW2_PORT_VLAN 0x14 /* VLAN Register */ -#define CPSW2_TX_PRI_MAP 0x18 /* Tx Header Priority to Switch Pri Mapping */ -#define CPSW2_TS_SEQ_MTYPE 0x1c /* Time Sync Sequence ID Offset and Msg Type */ - -/* CPSW_PORT_V1 and V2 */ -#define SA_LO 0x20 /* CPGMAC_SL Source Address Low */ -#define SA_HI 0x24 /* CPGMAC_SL Source Address High */ -#define SEND_PERCENT 0x28 /* Transmit Queue Send Percentages */ - -/* CPSW_PORT_V2 only */ -#define RX_DSCP_PRI_MAP0 0x30 /* Rx DSCP Priority to Rx Packet Mapping */ -#define RX_DSCP_PRI_MAP1 0x34 /* Rx DSCP Priority to Rx Packet Mapping */ -#define RX_DSCP_PRI_MAP2 0x38 /* Rx DSCP Priority to Rx Packet Mapping */ -#define RX_DSCP_PRI_MAP3 0x3c /* Rx DSCP Priority to Rx Packet Mapping */ -#define RX_DSCP_PRI_MAP4 0x40 /* Rx DSCP Priority to Rx Packet Mapping */ -#define RX_DSCP_PRI_MAP5 0x44 /* Rx DSCP Priority to Rx Packet Mapping */ -#define RX_DSCP_PRI_MAP6 0x48 /* Rx DSCP Priority to Rx Packet Mapping */ -#define RX_DSCP_PRI_MAP7 0x4c /* Rx DSCP Priority to Rx Packet Mapping */ - -/* Bit definitions for the CPSW2_CONTROL register */ -#define PASS_PRI_TAGGED (1<<24) /* Pass Priority Tagged */ -#define VLAN_LTYPE2_EN (1<<21) /* VLAN LTYPE 2 enable */ -#define VLAN_LTYPE1_EN (1<<20) /* VLAN LTYPE 1 enable */ -#define DSCP_PRI_EN (1<<16) /* DSCP Priority Enable */ -#define TS_320 (1<<14) /* Time Sync Dest Port 320 enable */ -#define TS_319 (1<<13) /* Time Sync Dest Port 319 enable */ -#define TS_132 (1<<12) /* Time Sync Dest IP Addr 132 enable */ -#define TS_131 (1<<11) /* Time Sync Dest IP Addr 131 enable */ -#define TS_130 (1<<10) /* Time Sync Dest IP Addr 130 enable */ -#define TS_129 (1<<9) /* Time Sync Dest IP Addr 129 enable */ -#define TS_BIT8 (1<<8) /* ts_ttl_nonzero? */ -#define TS_ANNEX_D_EN (1<<4) /* Time Sync Annex D enable */ -#define TS_LTYPE2_EN (1<<3) /* Time Sync LTYPE 2 enable */ -#define TS_LTYPE1_EN (1<<2) /* Time Sync LTYPE 1 enable */ -#define TS_TX_EN (1<<1) /* Time Sync Transmit Enable */ -#define TS_RX_EN (1<<0) /* Time Sync Receive Enable */ - -#define CTRL_TS_BITS \ - (TS_320 | TS_319 | TS_132 | TS_131 | TS_130 | TS_129 | TS_BIT8 | \ - TS_ANNEX_D_EN | TS_LTYPE1_EN) - -#define CTRL_ALL_TS_MASK (CTRL_TS_BITS | TS_TX_EN | TS_RX_EN) -#define CTRL_TX_TS_BITS (CTRL_TS_BITS | TS_TX_EN) -#define CTRL_RX_TS_BITS (CTRL_TS_BITS | TS_RX_EN) - -/* Bit definitions for the CPSW2_TS_SEQ_MTYPE register */ -#define TS_SEQ_ID_OFFSET_SHIFT (16) /* Time Sync Sequence ID Offset */ -#define TS_SEQ_ID_OFFSET_MASK (0x3f) -#define TS_MSG_TYPE_EN_SHIFT (0) /* Time Sync Message Type Enable */ -#define TS_MSG_TYPE_EN_MASK (0xffff) - -/* The PTP event messages - Sync, Delay_Req, Pdelay_Req, and Pdelay_Resp. */ -#define EVENT_MSG_BITS ((1<<0) | (1<<1) | (1<<2) | (1<<3)) - -/* Bit definitions for the CPSW1_TS_CTL register */ -#define CPSW_V1_TS_RX_EN BIT(0) -#define CPSW_V1_TS_TX_EN BIT(4) -#define CPSW_V1_MSG_TYPE_OFS 16 - -/* Bit definitions for the CPSW1_TS_SEQ_LTYPE register */ -#define CPSW_V1_SEQ_ID_OFS_SHIFT 16 - -struct cpsw_host_regs { - u32 max_blks; - u32 blk_cnt; - u32 tx_in_ctl; - u32 port_vlan; - u32 tx_pri_map; - u32 cpdma_tx_pri_map; - u32 cpdma_rx_chan_map; -}; - -struct cpsw_sliver_regs { - u32 id_ver; - u32 mac_control; - u32 mac_status; - u32 soft_reset; - u32 rx_maxlen; - u32 __reserved_0; - u32 rx_pause; - u32 tx_pause; - u32 __reserved_1; - u32 rx_pri_map; -}; - -struct cpsw_slave { - void __iomem *regs; - struct cpsw_sliver_regs __iomem *sliver; - int slave_num; - u32 mac_control; - struct cpsw_slave_data *data; - struct phy_device *phy; - struct net_device *ndev; - u32 port_vlan; - u32 open_stat; -}; - -static inline u32 slave_read(struct cpsw_slave *slave, u32 offset) -{ - return __raw_readl(slave->regs + offset); -} - -static inline void slave_write(struct cpsw_slave *slave, u32 val, u32 offset) -{ - __raw_writel(val, slave->regs + offset); -} - -struct cpsw_priv { - spinlock_t lock; - struct platform_device *pdev; - struct net_device *ndev; - struct resource *cpsw_res; - struct resource *cpsw_wr_res; - struct napi_struct napi; - struct device *dev; - struct cpsw_platform_data data; - struct cpsw_ss_regs __iomem *regs; - struct cpsw_wr_regs __iomem *wr_regs; - struct cpsw_host_regs __iomem *host_port_regs; - u32 msg_enable; - u32 version; - u32 coal_intvl; - u32 bus_freq_mhz; - struct net_device_stats stats; - int rx_packet_max; - int host_port; - struct clk *clk; - u8 mac_addr[ETH_ALEN]; - struct cpsw_slave *slaves; - struct cpdma_ctlr *dma; - struct cpdma_chan *txch, *rxch; - struct cpsw_ale *ale; - /* snapshot of IRQ numbers */ - u32 irqs_table[4]; - u32 num_irqs; - bool irq_enabled; - struct cpts *cpts; - u32 emac_port; -}; +static int descs_pool_size = CPSW_CPDMA_DESCS_POOL_SIZE_DEFAULT; +module_param(descs_pool_size, int, 0444); +MODULE_PARM_DESC(descs_pool_size, "Number of CPDMA CPPI descriptors in pool"); -#define napi_to_priv(napi) container_of(napi, struct cpsw_priv, napi) #define for_each_slave(priv, func, arg...) \ do { \ struct cpsw_slave *slave; \ + struct cpsw_common *cpsw = (priv)->cpsw; \ int n; \ - if (priv->data.dual_emac) \ - (func)((priv)->slaves + priv->emac_port, ##arg);\ + if (cpsw->data.dual_emac) \ + (func)((cpsw)->slaves + priv->emac_port, ##arg);\ else \ - for (n = (priv)->data.slaves, \ - slave = (priv)->slaves; \ + for (n = cpsw->data.slaves, \ + slave = cpsw->slaves; \ n; n--) \ (func)(slave++, ##arg); \ } while (0) -#define cpsw_get_slave_ndev(priv, __slave_no__) \ - (priv->slaves[__slave_no__].ndev) -#define cpsw_get_slave_priv(priv, __slave_no__) \ - ((priv->slaves[__slave_no__].ndev) ? \ - netdev_priv(priv->slaves[__slave_no__].ndev) : NULL) \ -#define cpsw_dual_emac_src_port_detect(status, priv, ndev, skb) \ - do { \ - if (!priv->data.dual_emac) \ - break; \ - if (CPDMA_RX_SOURCE_PORT(status) == 1) { \ - ndev = cpsw_get_slave_ndev(priv, 0); \ - priv = netdev_priv(ndev); \ - skb->dev = ndev; \ - } else if (CPDMA_RX_SOURCE_PORT(status) == 2) { \ - ndev = cpsw_get_slave_ndev(priv, 1); \ - priv = netdev_priv(ndev); \ - skb->dev = ndev; \ - } \ - } while (0) -#define cpsw_add_mcast(priv, addr) \ - do { \ - if (priv->data.dual_emac) { \ - struct cpsw_slave *slave = priv->slaves + \ - priv->emac_port; \ - int slave_port = cpsw_get_slave_port(priv, \ - slave->slave_num); \ - cpsw_ale_add_mcast(priv->ale, addr, \ - 1 << slave_port | 1 << priv->host_port, \ - ALE_VLAN, slave->port_vlan, 0); \ - } else { \ - cpsw_ale_add_mcast(priv->ale, addr, \ - ALE_ALL_PORTS << priv->host_port, \ - 0, 0, 0); \ - } \ - } while (0) +static int cpsw_slave_index_priv(struct cpsw_common *cpsw, + struct cpsw_priv *priv) +{ + return cpsw->data.dual_emac ? priv->emac_port : cpsw->data.active_slave; +} -static inline int cpsw_get_slave_port(struct cpsw_priv *priv, u32 slave_num) +static int cpsw_get_slave_port(u32 slave_num) { - if (priv->host_port == 0) - return slave_num + 1; - else - return slave_num; + return slave_num + 1; } -static void cpsw_ndo_set_rx_mode(struct net_device *ndev) +static int cpsw_ndo_vlan_rx_add_vid(struct net_device *ndev, + __be16 proto, u16 vid); + +static void cpsw_set_promiscious(struct net_device *ndev, bool enable) { - struct cpsw_priv *priv = netdev_priv(ndev); + struct cpsw_common *cpsw = ndev_to_cpsw(ndev); + struct cpsw_ale *ale = cpsw->ale; + int i; - if (ndev->flags & IFF_PROMISC) { - /* Enable promiscuous mode */ - dev_err(priv->dev, "Ignoring Promiscuous mode\n"); - return; - } + if (cpsw->data.dual_emac) { + bool flag = false; - /* Clear all mcast from ALE */ - cpsw_ale_flush_multicast(priv->ale, ALE_ALL_PORTS << priv->host_port); + /* Enabling promiscuous mode for one interface will be + * common for both the interface as the interface shares + * the same hardware resource. + */ + for (i = 0; i < cpsw->data.slaves; i++) + if (cpsw->slaves[i].ndev->flags & IFF_PROMISC) + flag = true; + + if (!enable && flag) { + enable = true; + dev_err(&ndev->dev, "promiscuity not disabled as the other interface is still in promiscuity mode\n"); + } - if (!netdev_mc_empty(ndev)) { - struct netdev_hw_addr *ha; + if (enable) { + /* Enable Bypass */ + cpsw_ale_control_set(ale, 0, ALE_BYPASS, 1); + + dev_dbg(&ndev->dev, "promiscuity enabled\n"); + } else { + /* Disable Bypass */ + cpsw_ale_control_set(ale, 0, ALE_BYPASS, 0); + dev_dbg(&ndev->dev, "promiscuity disabled\n"); + } + } else { + if (enable) { + unsigned long timeout = jiffies + HZ; + + /* Disable Learn for all ports (host is port 0 and slaves are port 1 and up */ + for (i = 0; i <= cpsw->data.slaves; i++) { + cpsw_ale_control_set(ale, i, + ALE_PORT_NOLEARN, 1); + cpsw_ale_control_set(ale, i, + ALE_PORT_NO_SA_UPDATE, 1); + } - /* program multicast address list into ALE register */ - netdev_for_each_mc_addr(ha, ndev) { - cpsw_add_mcast(priv, (u8 *)ha->addr); + /* Clear All Untouched entries */ + cpsw_ale_control_set(ale, 0, ALE_AGEOUT, 1); + do { + cpu_relax(); + if (cpsw_ale_control_get(ale, 0, ALE_AGEOUT)) + break; + } while (time_after(timeout, jiffies)); + cpsw_ale_control_set(ale, 0, ALE_AGEOUT, 1); + + /* Clear all mcast from ALE */ + cpsw_ale_flush_multicast(ale, ALE_ALL_PORTS, -1); + __hw_addr_ref_unsync_dev(&ndev->mc, ndev, NULL); + + /* Flood All Unicast Packets to Host port */ + cpsw_ale_control_set(ale, 0, ALE_P0_UNI_FLOOD, 1); + dev_dbg(&ndev->dev, "promiscuity enabled\n"); + } else { + /* Don't Flood All Unicast Packets to Host port */ + cpsw_ale_control_set(ale, 0, ALE_P0_UNI_FLOOD, 0); + + /* Enable Learn for all ports (host is port 0 and slaves are port 1 and up */ + for (i = 0; i <= cpsw->data.slaves; i++) { + cpsw_ale_control_set(ale, i, + ALE_PORT_NOLEARN, 0); + cpsw_ale_control_set(ale, i, + ALE_PORT_NO_SA_UPDATE, 0); + } + dev_dbg(&ndev->dev, "promiscuity disabled\n"); } } } -static void cpsw_intr_enable(struct cpsw_priv *priv) +/** + * cpsw_set_mc - adds multicast entry to the table if it's not added or deletes + * if it's not deleted + * @ndev: device to sync + * @addr: address to be added or deleted + * @vid: vlan id, if vid < 0 set/unset address for real device + * @add: add address if the flag is set or remove otherwise + */ +static int cpsw_set_mc(struct net_device *ndev, const u8 *addr, + int vid, int add) { - __raw_writel(0xFF, &priv->wr_regs->tx_en); - __raw_writel(0xFF, &priv->wr_regs->rx_en); + struct cpsw_priv *priv = netdev_priv(ndev); + struct cpsw_common *cpsw = priv->cpsw; + int mask, flags, ret; + + if (vid < 0) { + if (cpsw->data.dual_emac) + vid = cpsw->slaves[priv->emac_port].port_vlan; + else + vid = 0; + } + + mask = cpsw->data.dual_emac ? ALE_PORT_HOST : ALE_ALL_PORTS; + flags = vid ? ALE_VLAN : 0; + + if (add) + ret = cpsw_ale_add_mcast(cpsw->ale, addr, mask, flags, vid, 0); + else + ret = cpsw_ale_del_mcast(cpsw->ale, addr, 0, flags, vid); - cpdma_ctlr_int_ctrl(priv->dma, true); - return; + return ret; } -static void cpsw_intr_disable(struct cpsw_priv *priv) +static int cpsw_update_vlan_mc(struct net_device *vdev, int vid, void *ctx) { - __raw_writel(0, &priv->wr_regs->tx_en); - __raw_writel(0, &priv->wr_regs->rx_en); + struct addr_sync_ctx *sync_ctx = ctx; + struct netdev_hw_addr *ha; + int found = 0, ret = 0; + + if (!vdev || !(vdev->flags & IFF_UP)) + return 0; - cpdma_ctlr_int_ctrl(priv->dma, false); - return; + /* vlan address is relevant if its sync_cnt != 0 */ + netdev_for_each_mc_addr(ha, vdev) { + if (ether_addr_equal(ha->addr, sync_ctx->addr)) { + found = ha->sync_cnt; + break; + } + } + + if (found) + sync_ctx->consumed++; + + if (sync_ctx->flush) { + if (!found) + cpsw_set_mc(sync_ctx->ndev, sync_ctx->addr, vid, 0); + return 0; + } + + if (found) + ret = cpsw_set_mc(sync_ctx->ndev, sync_ctx->addr, vid, 1); + + return ret; } -void cpsw_tx_handler(void *token, int len, int status) +static int cpsw_add_mc_addr(struct net_device *ndev, const u8 *addr, int num) { - struct sk_buff *skb = token; - struct net_device *ndev = skb->dev; - struct cpsw_priv *priv = netdev_priv(ndev); + struct addr_sync_ctx sync_ctx; + int ret; - /* Check whether the queue is stopped due to stalled tx dma, if the - * queue is stopped then start the queue as we have free desc for tx - */ - if (unlikely(netif_queue_stopped(ndev))) - netif_wake_queue(ndev); - cpts_tx_timestamp(priv->cpts, skb); - priv->stats.tx_packets++; - priv->stats.tx_bytes += len; - dev_kfree_skb_any(skb); + sync_ctx.consumed = 0; + sync_ctx.addr = addr; + sync_ctx.ndev = ndev; + sync_ctx.flush = 0; + + ret = vlan_for_each(ndev, cpsw_update_vlan_mc, &sync_ctx); + if (sync_ctx.consumed < num && !ret) + ret = cpsw_set_mc(ndev, addr, -1, 1); + + return ret; } -void cpsw_rx_handler(void *token, int len, int status) +static int cpsw_del_mc_addr(struct net_device *ndev, const u8 *addr, int num) { - struct sk_buff *skb = token; - struct sk_buff *new_skb; - struct net_device *ndev = skb->dev; - struct cpsw_priv *priv = netdev_priv(ndev); - int ret = 0; + struct addr_sync_ctx sync_ctx; - cpsw_dual_emac_src_port_detect(status, priv, ndev, skb); + sync_ctx.consumed = 0; + sync_ctx.addr = addr; + sync_ctx.ndev = ndev; + sync_ctx.flush = 1; - if (unlikely(status < 0)) { - /* the interface is going down, skbs are purged */ - dev_kfree_skb_any(skb); - return; - } + vlan_for_each(ndev, cpsw_update_vlan_mc, &sync_ctx); + if (sync_ctx.consumed == num) + cpsw_set_mc(ndev, addr, -1, 0); - new_skb = netdev_alloc_skb_ip_align(ndev, priv->rx_packet_max); - if (new_skb) { - skb_put(skb, len); - cpts_rx_timestamp(priv->cpts, skb); - skb->protocol = eth_type_trans(skb, ndev); - netif_receive_skb(skb); - priv->stats.rx_bytes += len; - priv->stats.rx_packets++; - } else { - priv->stats.rx_dropped++; - new_skb = skb; - } - - ret = cpdma_chan_submit(priv->rxch, new_skb, new_skb->data, - skb_tailroom(new_skb), 0); - if (WARN_ON(ret < 0)) - dev_kfree_skb_any(new_skb); + return 0; } -static irqreturn_t cpsw_interrupt(int irq, void *dev_id) +static int cpsw_purge_vlan_mc(struct net_device *vdev, int vid, void *ctx) { - struct cpsw_priv *priv = dev_id; - u32 rx, tx, rx_thresh; - - rx_thresh = __raw_readl(&priv->wr_regs->rx_thresh_stat); - rx = __raw_readl(&priv->wr_regs->rx_stat); - tx = __raw_readl(&priv->wr_regs->tx_stat); - if (!rx_thresh && !rx && !tx) - return IRQ_NONE; - - cpsw_intr_disable(priv); - if (priv->irq_enabled == true) { - cpsw_disable_irq(priv); - priv->irq_enabled = false; - } + struct addr_sync_ctx *sync_ctx = ctx; + struct netdev_hw_addr *ha; + int found = 0; - if (netif_running(priv->ndev)) { - napi_schedule(&priv->napi); - return IRQ_HANDLED; + if (!vdev || !(vdev->flags & IFF_UP)) + return 0; + + /* vlan address is relevant if its sync_cnt != 0 */ + netdev_for_each_mc_addr(ha, vdev) { + if (ether_addr_equal(ha->addr, sync_ctx->addr)) { + found = ha->sync_cnt; + break; + } } - priv = cpsw_get_slave_priv(priv, 1); - if (!priv) - return IRQ_NONE; + if (!found) + return 0; - if (netif_running(priv->ndev)) { - napi_schedule(&priv->napi); - return IRQ_HANDLED; - } - return IRQ_NONE; + sync_ctx->consumed++; + cpsw_set_mc(sync_ctx->ndev, sync_ctx->addr, vid, 0); + return 0; } -static int cpsw_poll(struct napi_struct *napi, int budget) +static int cpsw_purge_all_mc(struct net_device *ndev, const u8 *addr, int num) { - struct cpsw_priv *priv = napi_to_priv(napi); - int num_tx, num_rx; - - num_tx = cpdma_chan_process(priv->txch, 128); - if (num_tx) - cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_TX); - - num_rx = cpdma_chan_process(priv->rxch, budget); - if (num_rx < budget) { - struct cpsw_priv *prim_cpsw; - - napi_complete(napi); - cpsw_intr_enable(priv); - cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_RX); - prim_cpsw = cpsw_get_slave_priv(priv, 0); - if (prim_cpsw->irq_enabled == false) { - prim_cpsw->irq_enabled = true; - cpsw_enable_irq(priv); - } - } + struct addr_sync_ctx sync_ctx; + + sync_ctx.addr = addr; + sync_ctx.ndev = ndev; + sync_ctx.consumed = 0; - if (num_rx || num_tx) - cpsw_dbg(priv, intr, "poll %d rx, %d tx pkts\n", - num_rx, num_tx); + vlan_for_each(ndev, cpsw_purge_vlan_mc, &sync_ctx); + if (sync_ctx.consumed < num) + cpsw_set_mc(ndev, addr, -1, 0); - return num_rx; + return 0; } -static inline void soft_reset(const char *module, void __iomem *reg) +static void cpsw_ndo_set_rx_mode(struct net_device *ndev) { - unsigned long timeout = jiffies + HZ; + struct cpsw_priv *priv = netdev_priv(ndev); + struct cpsw_common *cpsw = priv->cpsw; + int slave_port = -1; - __raw_writel(1, reg); - do { - cpu_relax(); - } while ((__raw_readl(reg) & 1) && time_after(timeout, jiffies)); + if (cpsw->data.dual_emac) + slave_port = priv->emac_port + 1; + + if (ndev->flags & IFF_PROMISC) { + /* Enable promiscuous mode */ + cpsw_set_promiscious(ndev, true); + cpsw_ale_set_allmulti(cpsw->ale, IFF_ALLMULTI, slave_port); + return; + } else { + /* Disable promiscuous mode */ + cpsw_set_promiscious(ndev, false); + } - WARN(__raw_readl(reg) & 1, "failed to soft-reset %s\n", module); + /* Restore allmulti on vlans if necessary */ + cpsw_ale_set_allmulti(cpsw->ale, + ndev->flags & IFF_ALLMULTI, slave_port); + + /* add/remove mcast address either for real netdev or for vlan */ + __hw_addr_ref_sync_dev(&ndev->mc, ndev, cpsw_add_mc_addr, + cpsw_del_mc_addr); } -#define mac_hi(mac) (((mac)[0] << 0) | ((mac)[1] << 8) | \ - ((mac)[2] << 16) | ((mac)[3] << 24)) -#define mac_lo(mac) (((mac)[4] << 0) | ((mac)[5] << 8)) +static unsigned int cpsw_rxbuf_total_len(unsigned int len) +{ + len += CPSW_HEADROOM_NA; + len += SKB_DATA_ALIGN(sizeof(struct skb_shared_info)); + + return SKB_DATA_ALIGN(len); +} -static void cpsw_set_slave_mac(struct cpsw_slave *slave, - struct cpsw_priv *priv) +static void cpsw_rx_handler(void *token, int len, int status) { - slave_write(slave, mac_hi(priv->mac_addr), SA_HI); - slave_write(slave, mac_lo(priv->mac_addr), SA_LO); + struct page *new_page, *page = token; + void *pa = page_address(page); + struct cpsw_meta_xdp *xmeta = pa + CPSW_XMETA_OFFSET; + struct cpsw_common *cpsw = ndev_to_cpsw(xmeta->ndev); + int pkt_size = cpsw->rx_packet_max; + int ret = 0, port, ch = xmeta->ch; + int headroom = CPSW_HEADROOM_NA; + struct net_device *ndev = xmeta->ndev; + u32 metasize = 0; + struct cpsw_priv *priv; + struct page_pool *pool; + struct sk_buff *skb; + struct xdp_buff xdp; + dma_addr_t dma; + + if (cpsw->data.dual_emac && status >= 0) { + port = CPDMA_RX_SOURCE_PORT(status); + if (port) + ndev = cpsw->slaves[--port].ndev; + } + + priv = netdev_priv(ndev); + pool = cpsw->page_pool[ch]; + if (unlikely(status < 0) || unlikely(!netif_running(ndev))) { + /* In dual emac mode check for all interfaces */ + if (cpsw->data.dual_emac && cpsw->usage_count && + (status >= 0)) { + /* The packet received is for the interface which + * is already down and the other interface is up + * and running, instead of freeing which results + * in reducing of the number of rx descriptor in + * DMA engine, requeue page back to cpdma. + */ + new_page = page; + goto requeue; + } + + /* the interface is going down, pages are purged */ + page_pool_recycle_direct(pool, page); + return; + } + + new_page = page_pool_dev_alloc_pages(pool); + if (unlikely(!new_page)) { + new_page = page; + ndev->stats.rx_dropped++; + goto requeue; + } + + if (priv->xdp_prog) { + int size = len; + + xdp_init_buff(&xdp, PAGE_SIZE, &priv->xdp_rxq[ch]); + if (status & CPDMA_RX_VLAN_ENCAP) { + headroom += CPSW_RX_VLAN_ENCAP_HDR_SIZE; + size -= CPSW_RX_VLAN_ENCAP_HDR_SIZE; + } + + xdp_prepare_buff(&xdp, pa, headroom, size, true); + + port = priv->emac_port + cpsw->data.dual_emac; + ret = cpsw_run_xdp(priv, ch, &xdp, page, port, &len); + if (ret != CPSW_XDP_PASS) + goto requeue; + + headroom = xdp.data - xdp.data_hard_start; + metasize = xdp.data - xdp.data_meta; + + /* XDP prog can modify vlan tag, so can't use encap header */ + status &= ~CPDMA_RX_VLAN_ENCAP; + } + + /* pass skb to netstack if no XDP prog or returned XDP_PASS */ + skb = build_skb(pa, cpsw_rxbuf_total_len(pkt_size)); + if (!skb) { + ndev->stats.rx_dropped++; + page_pool_recycle_direct(pool, page); + goto requeue; + } + + skb_reserve(skb, headroom); + skb_put(skb, len); + if (metasize) + skb_metadata_set(skb, metasize); + skb->dev = ndev; + if (status & CPDMA_RX_VLAN_ENCAP) + cpsw_rx_vlan_encap(skb); + if (priv->rx_ts_enabled) + cpts_rx_timestamp(cpsw->cpts, skb); + skb->protocol = eth_type_trans(skb, ndev); + + /* mark skb for recycling */ + skb_mark_for_recycle(skb); + netif_receive_skb(skb); + + ndev->stats.rx_bytes += len; + ndev->stats.rx_packets++; + +requeue: + xmeta = page_address(new_page) + CPSW_XMETA_OFFSET; + xmeta->ndev = ndev; + xmeta->ch = ch; + + dma = page_pool_get_dma_addr(new_page) + CPSW_HEADROOM_NA; + ret = cpdma_chan_submit_mapped(cpsw->rxv[ch].ch, new_page, dma, + pkt_size, 0); + if (ret < 0) { + WARN_ON(ret == -ENOMEM); + page_pool_recycle_direct(pool, new_page); + } } static void _cpsw_adjust_link(struct cpsw_slave *slave, @@ -597,40 +461,61 @@ static void _cpsw_adjust_link(struct cpsw_slave *slave, struct phy_device *phy = slave->phy; u32 mac_control = 0; u32 slave_port; + struct cpsw_common *cpsw = priv->cpsw; if (!phy) return; - slave_port = cpsw_get_slave_port(priv, slave->slave_num); + slave_port = cpsw_get_slave_port(slave->slave_num); if (phy->link) { - mac_control = priv->data.mac_control; - - /* enable forwarding */ - cpsw_ale_control_set(priv->ale, slave_port, - ALE_PORT_STATE, ALE_PORT_STATE_FORWARD); + mac_control = CPSW_SL_CTL_GMII_EN; if (phy->speed == 1000) - mac_control |= BIT(7); /* GIGABITEN */ + mac_control |= CPSW_SL_CTL_GIG; if (phy->duplex) - mac_control |= BIT(0); /* FULLDUPLEXEN */ + mac_control |= CPSW_SL_CTL_FULLDUPLEX; /* set speed_in input in case RMII mode is used in 100Mbps */ if (phy->speed == 100) - mac_control |= BIT(15); + mac_control |= CPSW_SL_CTL_IFCTL_A; + /* in band mode only works in 10Mbps RGMII mode */ + else if ((phy->speed == 10) && phy_interface_is_rgmii(phy)) + mac_control |= CPSW_SL_CTL_EXT_EN; /* In Band mode */ + + if (priv->rx_pause) + mac_control |= CPSW_SL_CTL_RX_FLOW_EN; + + if (priv->tx_pause) + mac_control |= CPSW_SL_CTL_TX_FLOW_EN; + + if (mac_control != slave->mac_control) + cpsw_sl_ctl_set(slave->mac_sl, mac_control); + + /* enable forwarding */ + cpsw_ale_control_set(cpsw->ale, slave_port, + ALE_PORT_STATE, ALE_PORT_STATE_FORWARD); *link = true; + + if (priv->shp_cfg_speed && + priv->shp_cfg_speed != slave->phy->speed && + !cpsw_shp_is_off(priv)) + dev_warn(priv->dev, + "Speed was changed, CBS shaper speeds are changed!"); } else { mac_control = 0; /* disable forwarding */ - cpsw_ale_control_set(priv->ale, slave_port, + cpsw_ale_control_set(cpsw->ale, slave_port, ALE_PORT_STATE, ALE_PORT_STATE_DISABLE); + + cpsw_sl_wait_for_idle(slave->mac_sl, 100); + + cpsw_sl_ctl_reset(slave->mac_sl); } - if (mac_control != slave->mac_control) { + if (mac_control != slave->mac_control) phy_print_status(phy); - __raw_writel(mac_control, &slave->sliver->mac_control); - } slave->mac_control = mac_control; } @@ -638,355 +523,353 @@ static void _cpsw_adjust_link(struct cpsw_slave *slave, static void cpsw_adjust_link(struct net_device *ndev) { struct cpsw_priv *priv = netdev_priv(ndev); + struct cpsw_common *cpsw = priv->cpsw; bool link = false; for_each_slave(priv, _cpsw_adjust_link, priv, &link); if (link) { + if (cpsw_need_resplit(cpsw)) + cpsw_split_res(cpsw); + netif_carrier_on(ndev); if (netif_running(ndev)) - netif_wake_queue(ndev); + netif_tx_wake_all_queues(ndev); } else { netif_carrier_off(ndev); - netif_stop_queue(ndev); + netif_tx_stop_all_queues(ndev); } } -static int cpsw_get_coalesce(struct net_device *ndev, - struct ethtool_coalesce *coal) -{ - struct cpsw_priv *priv = netdev_priv(ndev); - - coal->rx_coalesce_usecs = priv->coal_intvl; - return 0; -} - -static int cpsw_set_coalesce(struct net_device *ndev, - struct ethtool_coalesce *coal) -{ - struct cpsw_priv *priv = netdev_priv(ndev); - u32 int_ctrl; - u32 num_interrupts = 0; - u32 prescale = 0; - u32 addnl_dvdr = 1; - u32 coal_intvl = 0; - - if (!coal->rx_coalesce_usecs) - return -EINVAL; - - coal_intvl = coal->rx_coalesce_usecs; - - int_ctrl = readl(&priv->wr_regs->int_control); - prescale = priv->bus_freq_mhz * 4; - - if (coal_intvl < CPSW_CMINTMIN_INTVL) - coal_intvl = CPSW_CMINTMIN_INTVL; - - if (coal_intvl > CPSW_CMINTMAX_INTVL) { - /* Interrupt pacer works with 4us Pulse, we can - * throttle further by dilating the 4us pulse. - */ - addnl_dvdr = CPSW_INTPRESCALE_MASK / prescale; - - if (addnl_dvdr > 1) { - prescale *= addnl_dvdr; - if (coal_intvl > (CPSW_CMINTMAX_INTVL * addnl_dvdr)) - coal_intvl = (CPSW_CMINTMAX_INTVL - * addnl_dvdr); - } else { - addnl_dvdr = 1; - coal_intvl = CPSW_CMINTMAX_INTVL; - } - } - - num_interrupts = (1000 * addnl_dvdr) / coal_intvl; - writel(num_interrupts, &priv->wr_regs->rx_imax); - writel(num_interrupts, &priv->wr_regs->tx_imax); - - int_ctrl |= CPSW_INTPACEEN; - int_ctrl &= (~CPSW_INTPRESCALE_MASK); - int_ctrl |= (prescale & CPSW_INTPRESCALE_MASK); - writel(int_ctrl, &priv->wr_regs->int_control); - - cpsw_notice(priv, timer, "Set coalesce to %d usecs.\n", coal_intvl); - if (priv->data.dual_emac) { - int i; - - for (i = 0; i < priv->data.slaves; i++) { - priv = netdev_priv(priv->slaves[i].ndev); - priv->coal_intvl = coal_intvl; - } - } else { - priv->coal_intvl = coal_intvl; - } - - return 0; -} - -static inline int __show_stat(char *buf, int maxlen, const char *name, u32 val) -{ - static char *leader = "........................................"; - - if (!val) - return 0; - else - return snprintf(buf, maxlen, "%s %s %10d\n", name, - leader + strlen(name), val); -} - -static int cpsw_common_res_usage_state(struct cpsw_priv *priv) -{ - u32 i; - u32 usage_count = 0; - - if (!priv->data.dual_emac) - return 0; - - for (i = 0; i < priv->data.slaves; i++) - if (priv->slaves[i].open_stat) - usage_count++; - - return usage_count; -} - -static inline int cpsw_tx_packet_submit(struct net_device *ndev, - struct cpsw_priv *priv, struct sk_buff *skb) -{ - if (!priv->data.dual_emac) - return cpdma_chan_submit(priv->txch, skb, skb->data, - skb->len, 0); - - if (ndev == cpsw_get_slave_ndev(priv, 0)) - return cpdma_chan_submit(priv->txch, skb, skb->data, - skb->len, 1); - else - return cpdma_chan_submit(priv->txch, skb, skb->data, - skb->len, 2); -} - static inline void cpsw_add_dual_emac_def_ale_entries( struct cpsw_priv *priv, struct cpsw_slave *slave, u32 slave_port) { - u32 port_mask = 1 << slave_port | 1 << priv->host_port; + struct cpsw_common *cpsw = priv->cpsw; + u32 port_mask = 1 << slave_port | ALE_PORT_HOST; - if (priv->version == CPSW_VERSION_1) + if (cpsw->version == CPSW_VERSION_1) slave_write(slave, slave->port_vlan, CPSW1_PORT_VLAN); else slave_write(slave, slave->port_vlan, CPSW2_PORT_VLAN); - cpsw_ale_add_vlan(priv->ale, slave->port_vlan, port_mask, + cpsw_ale_add_vlan(cpsw->ale, slave->port_vlan, port_mask, port_mask, port_mask, 0); - cpsw_ale_add_mcast(priv->ale, priv->ndev->broadcast, - port_mask, ALE_VLAN, slave->port_vlan, 0); - cpsw_ale_add_ucast(priv->ale, priv->mac_addr, - priv->host_port, ALE_VLAN, slave->port_vlan); + cpsw_ale_add_mcast(cpsw->ale, priv->ndev->broadcast, + ALE_PORT_HOST, ALE_VLAN, slave->port_vlan, 0); + cpsw_ale_add_ucast(cpsw->ale, priv->mac_addr, + HOST_PORT_NUM, ALE_VLAN | + ALE_SECURE, slave->port_vlan); + cpsw_ale_control_set(cpsw->ale, slave_port, + ALE_PORT_DROP_UNKNOWN_VLAN, 1); } static void cpsw_slave_open(struct cpsw_slave *slave, struct cpsw_priv *priv) { - char name[32]; u32 slave_port; + struct phy_device *phy; + struct cpsw_common *cpsw = priv->cpsw; - sprintf(name, "slave-%d", slave->slave_num); - - soft_reset(name, &slave->sliver->soft_reset); + cpsw_sl_reset(slave->mac_sl, 100); + cpsw_sl_ctl_reset(slave->mac_sl); /* setup priority mapping */ - __raw_writel(RX_PRIORITY_MAPPING, &slave->sliver->rx_pri_map); + cpsw_sl_reg_write(slave->mac_sl, CPSW_SL_RX_PRI_MAP, + RX_PRIORITY_MAPPING); - switch (priv->version) { + switch (cpsw->version) { case CPSW_VERSION_1: slave_write(slave, TX_PRIORITY_MAPPING, CPSW1_TX_PRI_MAP); + /* Increase RX FIFO size to 5 for supporting fullduplex + * flow control mode + */ + slave_write(slave, + (CPSW_MAX_BLKS_TX << CPSW_MAX_BLKS_TX_SHIFT) | + CPSW_MAX_BLKS_RX, CPSW1_MAX_BLKS); break; case CPSW_VERSION_2: + case CPSW_VERSION_3: + case CPSW_VERSION_4: slave_write(slave, TX_PRIORITY_MAPPING, CPSW2_TX_PRI_MAP); + /* Increase RX FIFO size to 5 for supporting fullduplex + * flow control mode + */ + slave_write(slave, + (CPSW_MAX_BLKS_TX << CPSW_MAX_BLKS_TX_SHIFT) | + CPSW_MAX_BLKS_RX, CPSW2_MAX_BLKS); break; } /* setup max packet size, and mac address */ - __raw_writel(priv->rx_packet_max, &slave->sliver->rx_maxlen); + cpsw_sl_reg_write(slave->mac_sl, CPSW_SL_RX_MAXLEN, + cpsw->rx_packet_max); cpsw_set_slave_mac(slave, priv); slave->mac_control = 0; /* no link yet */ - slave_port = cpsw_get_slave_port(priv, slave->slave_num); + slave_port = cpsw_get_slave_port(slave->slave_num); - if (priv->data.dual_emac) + if (cpsw->data.dual_emac) cpsw_add_dual_emac_def_ale_entries(priv, slave, slave_port); else - cpsw_ale_add_mcast(priv->ale, priv->ndev->broadcast, + cpsw_ale_add_mcast(cpsw->ale, priv->ndev->broadcast, 1 << slave_port, 0, 0, ALE_MCAST_FWD_2); - slave->phy = phy_connect(priv->ndev, slave->data->phy_id, - &cpsw_adjust_link, slave->data->phy_if); - if (IS_ERR(slave->phy)) { - dev_err(priv->dev, "phy %s not found on slave %d\n", - slave->data->phy_id, slave->slave_num); - slave->phy = NULL; + if (slave->data->phy_node) { + phy = of_phy_connect(priv->ndev, slave->data->phy_node, + &cpsw_adjust_link, 0, slave->data->phy_if); + if (!phy) { + dev_err(priv->dev, "phy \"%pOF\" not found on slave %d\n", + slave->data->phy_node, + slave->slave_num); + return; + } } else { - dev_info(priv->dev, "phy found : id is : 0x%x\n", - slave->phy->phy_id); - phy_start(slave->phy); + phy = phy_connect(priv->ndev, slave->data->phy_id, + &cpsw_adjust_link, slave->data->phy_if); + if (IS_ERR(phy)) { + dev_err(priv->dev, + "phy \"%s\" not found on slave %d, err %ld\n", + slave->data->phy_id, slave->slave_num, + PTR_ERR(phy)); + return; + } } + + phy->mac_managed_pm = true; + + slave->phy = phy; + + phy_disable_eee(slave->phy); + + phy_attached_info(slave->phy); + + phy_start(slave->phy); + + /* Configure GMII_SEL register */ + if (!IS_ERR(slave->data->ifphy)) + phy_set_mode_ext(slave->data->ifphy, PHY_MODE_ETHERNET, + slave->data->phy_if); + else + cpsw_phy_sel(cpsw->dev, slave->phy->interface, + slave->slave_num); } static inline void cpsw_add_default_vlan(struct cpsw_priv *priv) { - const int vlan = priv->data.default_vlan; - const int port = priv->host_port; + struct cpsw_common *cpsw = priv->cpsw; + const int vlan = cpsw->data.default_vlan; u32 reg; int i; + int unreg_mcast_mask; - reg = (priv->version == CPSW_VERSION_1) ? CPSW1_PORT_VLAN : + reg = (cpsw->version == CPSW_VERSION_1) ? CPSW1_PORT_VLAN : CPSW2_PORT_VLAN; - writel(vlan, &priv->host_port_regs->port_vlan); + writel(vlan, &cpsw->host_port_regs->port_vlan); + + for (i = 0; i < cpsw->data.slaves; i++) + slave_write(cpsw->slaves + i, vlan, reg); - for (i = 0; i < priv->data.slaves; i++) - slave_write(priv->slaves + i, vlan, reg); + if (priv->ndev->flags & IFF_ALLMULTI) + unreg_mcast_mask = ALE_ALL_PORTS; + else + unreg_mcast_mask = ALE_PORT_1 | ALE_PORT_2; - cpsw_ale_add_vlan(priv->ale, vlan, ALE_ALL_PORTS << port, - ALE_ALL_PORTS << port, ALE_ALL_PORTS << port, - (ALE_PORT_1 | ALE_PORT_2) << port); + cpsw_ale_add_vlan(cpsw->ale, vlan, ALE_ALL_PORTS, + ALE_ALL_PORTS, ALE_ALL_PORTS, + unreg_mcast_mask); } static void cpsw_init_host_port(struct cpsw_priv *priv) { - u32 control_reg; u32 fifo_mode; + u32 control_reg; + struct cpsw_common *cpsw = priv->cpsw; /* soft reset the controller and initialize ale */ - soft_reset("cpsw", &priv->regs->soft_reset); - cpsw_ale_start(priv->ale); + soft_reset("cpsw", &cpsw->regs->soft_reset); + cpsw_ale_start(cpsw->ale); - /* switch to vlan unaware mode */ - cpsw_ale_control_set(priv->ale, priv->host_port, ALE_VLAN_AWARE, + /* switch to vlan aware mode */ + cpsw_ale_control_set(cpsw->ale, HOST_PORT_NUM, ALE_VLAN_AWARE, CPSW_ALE_VLAN_AWARE); - control_reg = readl(&priv->regs->control); - control_reg |= CPSW_VLAN_AWARE; - writel(control_reg, &priv->regs->control); - fifo_mode = (priv->data.dual_emac) ? CPSW_FIFO_DUAL_MAC_MODE : + control_reg = readl(&cpsw->regs->control); + control_reg |= CPSW_VLAN_AWARE | CPSW_RX_VLAN_ENCAP; + writel(control_reg, &cpsw->regs->control); + fifo_mode = (cpsw->data.dual_emac) ? CPSW_FIFO_DUAL_MAC_MODE : CPSW_FIFO_NORMAL_MODE; - writel(fifo_mode, &priv->host_port_regs->tx_in_ctl); + writel(fifo_mode, &cpsw->host_port_regs->tx_in_ctl); /* setup host port priority mapping */ - __raw_writel(CPDMA_TX_PRIORITY_MAP, - &priv->host_port_regs->cpdma_tx_pri_map); - __raw_writel(0, &priv->host_port_regs->cpdma_rx_chan_map); + writel_relaxed(CPDMA_TX_PRIORITY_MAP, + &cpsw->host_port_regs->cpdma_tx_pri_map); + writel_relaxed(0, &cpsw->host_port_regs->cpdma_rx_chan_map); - cpsw_ale_control_set(priv->ale, priv->host_port, + cpsw_ale_control_set(cpsw->ale, HOST_PORT_NUM, ALE_PORT_STATE, ALE_PORT_STATE_FORWARD); - if (!priv->data.dual_emac) { - cpsw_ale_add_ucast(priv->ale, priv->mac_addr, priv->host_port, + if (!cpsw->data.dual_emac) { + cpsw_ale_add_ucast(cpsw->ale, priv->mac_addr, HOST_PORT_NUM, 0, 0); - cpsw_ale_add_mcast(priv->ale, priv->ndev->broadcast, - 1 << priv->host_port, 0, 0, ALE_MCAST_FWD_2); + cpsw_ale_add_mcast(cpsw->ale, priv->ndev->broadcast, + ALE_PORT_HOST, 0, 0, ALE_MCAST_FWD_2); } } -static void cpsw_slave_stop(struct cpsw_slave *slave, struct cpsw_priv *priv) +static void cpsw_slave_stop(struct cpsw_slave *slave, struct cpsw_common *cpsw) { + u32 slave_port; + + slave_port = cpsw_get_slave_port(slave->slave_num); + if (!slave->phy) return; phy_stop(slave->phy); phy_disconnect(slave->phy); slave->phy = NULL; + cpsw_ale_control_set(cpsw->ale, slave_port, + ALE_PORT_STATE, ALE_PORT_STATE_DISABLE); + cpsw_sl_reset(slave->mac_sl, 100); + cpsw_sl_ctl_reset(slave->mac_sl); +} + +static int cpsw_restore_vlans(struct net_device *vdev, int vid, void *arg) +{ + struct cpsw_priv *priv = arg; + + if (!vdev) + return 0; + + cpsw_ndo_vlan_rx_add_vid(priv->ndev, 0, vid); + return 0; +} + +/* restore resources after port reset */ +static void cpsw_restore(struct cpsw_priv *priv) +{ + /* restore vlan configurations */ + vlan_for_each(priv->ndev, cpsw_restore_vlans, priv); + + /* restore MQPRIO offload */ + for_each_slave(priv, cpsw_mqprio_resume, priv); + + /* restore CBS offload */ + for_each_slave(priv, cpsw_cbs_resume, priv); } static int cpsw_ndo_open(struct net_device *ndev) { struct cpsw_priv *priv = netdev_priv(ndev); - struct cpsw_priv *prim_cpsw; - int i, ret; + struct cpsw_common *cpsw = priv->cpsw; + int ret; u32 reg; - if (!cpsw_common_res_usage_state(priv)) - cpsw_intr_disable(priv); + ret = pm_runtime_resume_and_get(cpsw->dev); + if (ret < 0) + return ret; + netif_carrier_off(ndev); - pm_runtime_get_sync(&priv->pdev->dev); + /* Notify the stack of the actual queue counts. */ + ret = netif_set_real_num_tx_queues(ndev, cpsw->tx_ch_num); + if (ret) { + dev_err(priv->dev, "cannot set real number of tx queues\n"); + goto err_cleanup; + } - reg = priv->version; + ret = netif_set_real_num_rx_queues(ndev, cpsw->rx_ch_num); + if (ret) { + dev_err(priv->dev, "cannot set real number of rx queues\n"); + goto err_cleanup; + } + + reg = cpsw->version; dev_info(priv->dev, "initializing cpsw version %d.%d (%d)\n", CPSW_MAJOR_VERSION(reg), CPSW_MINOR_VERSION(reg), CPSW_RTL_VERSION(reg)); - /* initialize host and slave ports */ - if (!cpsw_common_res_usage_state(priv)) + /* Initialize host and slave ports */ + if (!cpsw->usage_count) cpsw_init_host_port(priv); for_each_slave(priv, cpsw_slave_open, priv); /* Add default VLAN */ - if (!priv->data.dual_emac) + if (!cpsw->data.dual_emac) cpsw_add_default_vlan(priv); + else + cpsw_ale_add_vlan(cpsw->ale, cpsw->data.default_vlan, + ALE_ALL_PORTS, ALE_ALL_PORTS, 0, 0); - if (!cpsw_common_res_usage_state(priv)) { - /* setup tx dma to fixed prio and zero offset */ - cpdma_control_set(priv->dma, CPDMA_TX_PRIO_FIXED, 1); - cpdma_control_set(priv->dma, CPDMA_RX_BUFFER_OFFSET, 0); - + /* initialize shared resources for every ndev */ + if (!cpsw->usage_count) { /* disable priority elevation */ - __raw_writel(0, &priv->regs->ptype); + writel_relaxed(0, &cpsw->regs->ptype); /* enable statistics collection only on all ports */ - __raw_writel(0x7, &priv->regs->stat_port_en); - - if (WARN_ON(!priv->data.rx_descs)) - priv->data.rx_descs = 128; - - for (i = 0; i < priv->data.rx_descs; i++) { - struct sk_buff *skb; - - ret = -ENOMEM; - skb = __netdev_alloc_skb_ip_align(priv->ndev, - priv->rx_packet_max, GFP_KERNEL); - if (!skb) - goto err_cleanup; - ret = cpdma_chan_submit(priv->rxch, skb, skb->data, - skb_tailroom(skb), 0); - if (ret < 0) { - kfree_skb(skb); - goto err_cleanup; - } + writel_relaxed(0x7, &cpsw->regs->stat_port_en); + + /* Enable internal fifo flow control */ + writel(0x7, &cpsw->regs->flow_control); + + napi_enable(&cpsw->napi_rx); + napi_enable(&cpsw->napi_tx); + + if (cpsw->tx_irq_disabled) { + cpsw->tx_irq_disabled = false; + enable_irq(cpsw->irqs_table[1]); } - /* continue even if we didn't manage to submit all - * receive descs + + if (cpsw->rx_irq_disabled) { + cpsw->rx_irq_disabled = false; + enable_irq(cpsw->irqs_table[0]); + } + + /* create rxqs for both infs in dual mac as they use same pool + * and must be destroyed together when no users. */ - cpsw_info(priv, ifup, "submitted %d rx descriptors\n", i); + ret = cpsw_create_xdp_rxqs(cpsw); + if (ret < 0) + goto err_cleanup; + + ret = cpsw_fill_rx_channels(priv); + if (ret < 0) + goto err_cleanup; + + if (cpsw->cpts) { + if (cpts_register(cpsw->cpts)) + dev_err(priv->dev, "error registering cpts device\n"); + else + writel(0x10, &cpsw->wr_regs->misc_en); + } } + cpsw_restore(priv); + /* Enable Interrupt pacing if configured */ - if (priv->coal_intvl != 0) { + if (cpsw->coal_intvl != 0) { struct ethtool_coalesce coal; - coal.rx_coalesce_usecs = (priv->coal_intvl << 4); - cpsw_set_coalesce(ndev, &coal); - } - - prim_cpsw = cpsw_get_slave_priv(priv, 0); - if (prim_cpsw->irq_enabled == false) { - if ((priv == prim_cpsw) || !netif_running(prim_cpsw->ndev)) { - prim_cpsw->irq_enabled = true; - cpsw_enable_irq(prim_cpsw); - } + coal.rx_coalesce_usecs = cpsw->coal_intvl; + cpsw_set_coalesce(ndev, &coal, NULL, NULL); } - cpdma_ctlr_start(priv->dma); - cpsw_intr_enable(priv); - napi_enable(&priv->napi); - cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_RX); - cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_TX); + cpdma_ctlr_start(cpsw->dma); + cpsw_intr_enable(cpsw); + cpsw->usage_count++; - if (priv->data.dual_emac) - priv->slaves[priv->emac_port].open_stat = true; return 0; err_cleanup: - cpdma_ctlr_stop(priv->dma); - for_each_slave(priv, cpsw_slave_stop, priv); - pm_runtime_put_sync(&priv->pdev->dev); + if (!cpsw->usage_count) { + napi_disable(&cpsw->napi_rx); + napi_disable(&cpsw->napi_tx); + cpdma_ctlr_stop(cpsw->dma); + cpsw_destroy_xdp_rxqs(cpsw); + } + + for_each_slave(priv, cpsw_slave_stop, cpsw); + pm_runtime_put_sync(cpsw->dev); netif_carrier_off(priv->ndev); return ret; } @@ -994,22 +877,29 @@ err_cleanup: static int cpsw_ndo_stop(struct net_device *ndev) { struct cpsw_priv *priv = netdev_priv(ndev); + struct cpsw_common *cpsw = priv->cpsw; cpsw_info(priv, ifdown, "shutting down cpsw device\n"); - netif_stop_queue(priv->ndev); - napi_disable(&priv->napi); + __hw_addr_ref_unsync_dev(&ndev->mc, ndev, cpsw_purge_all_mc); + netif_tx_stop_all_queues(priv->ndev); netif_carrier_off(priv->ndev); - if (cpsw_common_res_usage_state(priv) <= 1) { - cpsw_intr_disable(priv); - cpdma_ctlr_int_ctrl(priv->dma, false); - cpdma_ctlr_stop(priv->dma); - cpsw_ale_stop(priv->ale); + if (cpsw->usage_count <= 1) { + napi_disable(&cpsw->napi_rx); + napi_disable(&cpsw->napi_tx); + cpts_unregister(cpsw->cpts); + cpsw_intr_disable(cpsw); + cpdma_ctlr_stop(cpsw->dma); + cpsw_ale_stop(cpsw->ale); + cpsw_destroy_xdp_rxqs(cpsw); } - for_each_slave(priv, cpsw_slave_stop, priv); - pm_runtime_put_sync(&priv->pdev->dev); - if (priv->data.dual_emac) - priv->slaves[priv->emac_port].open_stat = false; + for_each_slave(priv, cpsw_slave_stop, cpsw); + + if (cpsw_need_resplit(cpsw)) + cpsw_split_res(cpsw); + + cpsw->usage_count--; + pm_runtime_put_sync(cpsw->dev); return 0; } @@ -1017,23 +907,31 @@ static netdev_tx_t cpsw_ndo_start_xmit(struct sk_buff *skb, struct net_device *ndev) { struct cpsw_priv *priv = netdev_priv(ndev); - int ret; - - ndev->trans_start = jiffies; + struct cpsw_common *cpsw = priv->cpsw; + struct cpts *cpts = cpsw->cpts; + struct netdev_queue *txq; + struct cpdma_chan *txch; + int ret, q_idx; - if (skb_padto(skb, CPSW_MIN_PACKET_SIZE)) { + if (skb_put_padto(skb, CPSW_MIN_PACKET_SIZE)) { cpsw_err(priv, tx_err, "packet pad failed\n"); - priv->stats.tx_dropped++; - return NETDEV_TX_OK; + ndev->stats.tx_dropped++; + return NET_XMIT_DROP; } if (skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP && - priv->cpts->tx_enable) + priv->tx_ts_enabled && cpts_can_timestamp(cpts, skb)) skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS; - skb_tx_timestamp(skb); + q_idx = skb_get_queue_mapping(skb); + if (q_idx >= cpsw->tx_ch_num) + q_idx = q_idx % cpsw->tx_ch_num; - ret = cpsw_tx_packet_submit(ndev, priv, skb); + txch = cpsw->txv[q_idx].ch; + txq = netdev_get_tx_queue(ndev, q_idx); + skb_tx_timestamp(skb); + ret = cpdma_chan_submit(txch, skb, skb->data, skb->len, + priv->emac_port + cpsw->data.dual_emac); if (unlikely(ret != 0)) { cpsw_err(priv, tx_err, "desc submit failed\n"); goto fail; @@ -1042,247 +940,111 @@ static netdev_tx_t cpsw_ndo_start_xmit(struct sk_buff *skb, /* If there is no more tx desc left free then we need to * tell the kernel to stop sending us tx frames. */ - if (unlikely(!cpdma_check_free_tx_desc(priv->txch))) - netif_stop_queue(ndev); - - return NETDEV_TX_OK; -fail: - priv->stats.tx_dropped++; - netif_stop_queue(ndev); - return NETDEV_TX_BUSY; -} - -static void cpsw_ndo_change_rx_flags(struct net_device *ndev, int flags) -{ - /* - * The switch cannot operate in promiscuous mode without substantial - * headache. For promiscuous mode to work, we would need to put the - * ALE in bypass mode and route all traffic to the host port. - * Subsequently, the host will need to operate as a "bridge", learn, - * and flood as needed. For now, we simply complain here and - * do nothing about it :-) - */ - if ((flags & IFF_PROMISC) && (ndev->flags & IFF_PROMISC)) - dev_err(&ndev->dev, "promiscuity ignored!\n"); + if (unlikely(!cpdma_check_free_tx_desc(txch))) { + netif_tx_stop_queue(txq); - /* - * The switch cannot filter multicast traffic unless it is configured - * in "VLAN Aware" mode. Unfortunately, VLAN awareness requires a - * whole bunch of additional logic that this driver does not implement - * at present. - */ - if ((flags & IFF_ALLMULTI) && !(ndev->flags & IFF_ALLMULTI)) - dev_err(&ndev->dev, "multicast traffic cannot be filtered!\n"); -} + /* Barrier, so that stop_queue visible to other cpus */ + smp_mb__after_atomic(); -#ifdef CONFIG_TI_CPTS - -static void cpsw_hwtstamp_v1(struct cpsw_priv *priv) -{ - struct cpsw_slave *slave = &priv->slaves[priv->data.active_slave]; - u32 ts_en, seq_id; - - if (!priv->cpts->tx_enable && !priv->cpts->rx_enable) { - slave_write(slave, 0, CPSW1_TS_CTL); - return; + if (cpdma_check_free_tx_desc(txch)) + netif_tx_wake_queue(txq); } - seq_id = (30 << CPSW_V1_SEQ_ID_OFS_SHIFT) | ETH_P_1588; - ts_en = EVENT_MSG_BITS << CPSW_V1_MSG_TYPE_OFS; - - if (priv->cpts->tx_enable) - ts_en |= CPSW_V1_TS_TX_EN; - - if (priv->cpts->rx_enable) - ts_en |= CPSW_V1_TS_RX_EN; - - slave_write(slave, ts_en, CPSW1_TS_CTL); - slave_write(slave, seq_id, CPSW1_TS_SEQ_LTYPE); -} - -static void cpsw_hwtstamp_v2(struct cpsw_priv *priv) -{ - struct cpsw_slave *slave; - u32 ctrl, mtype; - - if (priv->data.dual_emac) - slave = &priv->slaves[priv->emac_port]; - else - slave = &priv->slaves[priv->data.active_slave]; - - ctrl = slave_read(slave, CPSW2_CONTROL); - ctrl &= ~CTRL_ALL_TS_MASK; - - if (priv->cpts->tx_enable) - ctrl |= CTRL_TX_TS_BITS; + return NETDEV_TX_OK; +fail: + ndev->stats.tx_dropped++; + netif_tx_stop_queue(txq); - if (priv->cpts->rx_enable) - ctrl |= CTRL_RX_TS_BITS; + /* Barrier, so that stop_queue visible to other cpus */ + smp_mb__after_atomic(); - mtype = (30 << TS_SEQ_ID_OFFSET_SHIFT) | EVENT_MSG_BITS; + if (cpdma_check_free_tx_desc(txch)) + netif_tx_wake_queue(txq); - slave_write(slave, mtype, CPSW2_TS_SEQ_MTYPE); - slave_write(slave, ctrl, CPSW2_CONTROL); - __raw_writel(ETH_P_1588, &priv->regs->ts_ltype); + return NETDEV_TX_BUSY; } -static int cpsw_hwtstamp_ioctl(struct net_device *dev, struct ifreq *ifr) +static int cpsw_ndo_set_mac_address(struct net_device *ndev, void *p) { - struct cpsw_priv *priv = netdev_priv(dev); - struct cpts *cpts = priv->cpts; - struct hwtstamp_config cfg; - - if (copy_from_user(&cfg, ifr->ifr_data, sizeof(cfg))) - return -EFAULT; + struct cpsw_priv *priv = netdev_priv(ndev); + struct sockaddr *addr = (struct sockaddr *)p; + struct cpsw_common *cpsw = priv->cpsw; + int flags = 0; + u16 vid = 0; + int ret; - /* reserved for future extensions */ - if (cfg.flags) - return -EINVAL; + if (!is_valid_ether_addr(addr->sa_data)) + return -EADDRNOTAVAIL; - switch (cfg.tx_type) { - case HWTSTAMP_TX_OFF: - cpts->tx_enable = 0; - break; - case HWTSTAMP_TX_ON: - cpts->tx_enable = 1; - break; - default: - return -ERANGE; - } + ret = pm_runtime_resume_and_get(cpsw->dev); + if (ret < 0) + return ret; - switch (cfg.rx_filter) { - case HWTSTAMP_FILTER_NONE: - cpts->rx_enable = 0; - break; - case HWTSTAMP_FILTER_ALL: - case HWTSTAMP_FILTER_PTP_V1_L4_EVENT: - case HWTSTAMP_FILTER_PTP_V1_L4_SYNC: - case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ: - return -ERANGE; - case HWTSTAMP_FILTER_PTP_V2_L4_EVENT: - case HWTSTAMP_FILTER_PTP_V2_L4_SYNC: - case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ: - case HWTSTAMP_FILTER_PTP_V2_L2_EVENT: - case HWTSTAMP_FILTER_PTP_V2_L2_SYNC: - case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ: - case HWTSTAMP_FILTER_PTP_V2_EVENT: - case HWTSTAMP_FILTER_PTP_V2_SYNC: - case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ: - cpts->rx_enable = 1; - cfg.rx_filter = HWTSTAMP_FILTER_PTP_V2_EVENT; - break; - default: - return -ERANGE; + if (cpsw->data.dual_emac) { + vid = cpsw->slaves[priv->emac_port].port_vlan; + flags = ALE_VLAN; } - switch (priv->version) { - case CPSW_VERSION_1: - cpsw_hwtstamp_v1(priv); - break; - case CPSW_VERSION_2: - cpsw_hwtstamp_v2(priv); - break; - default: - return -ENOTSUPP; - } + cpsw_ale_del_ucast(cpsw->ale, priv->mac_addr, HOST_PORT_NUM, + flags, vid); + cpsw_ale_add_ucast(cpsw->ale, addr->sa_data, HOST_PORT_NUM, + flags, vid); - return copy_to_user(ifr->ifr_data, &cfg, sizeof(cfg)) ? -EFAULT : 0; -} + memcpy(priv->mac_addr, addr->sa_data, ETH_ALEN); + eth_hw_addr_set(ndev, priv->mac_addr); + for_each_slave(priv, cpsw_set_slave_mac, priv); -#endif /*CONFIG_TI_CPTS*/ - -static int cpsw_ndo_ioctl(struct net_device *dev, struct ifreq *req, int cmd) -{ - struct cpsw_priv *priv = netdev_priv(dev); - struct mii_ioctl_data *data = if_mii(req); - int slave_no = cpsw_slave_index(priv); - - if (!netif_running(dev)) - return -EINVAL; - - switch (cmd) { -#ifdef CONFIG_TI_CPTS - case SIOCSHWTSTAMP: - return cpsw_hwtstamp_ioctl(dev, req); -#endif - case SIOCGMIIPHY: - data->phy_id = priv->slaves[slave_no].phy->addr; - break; - default: - return -ENOTSUPP; - } + pm_runtime_put(cpsw->dev); return 0; } -static void cpsw_ndo_tx_timeout(struct net_device *ndev) -{ - struct cpsw_priv *priv = netdev_priv(ndev); - - cpsw_err(priv, tx_err, "transmit timeout, restarting dma\n"); - priv->stats.tx_errors++; - cpsw_intr_disable(priv); - cpdma_ctlr_int_ctrl(priv->dma, false); - cpdma_chan_stop(priv->txch); - cpdma_chan_start(priv->txch); - cpdma_ctlr_int_ctrl(priv->dma, true); - cpsw_intr_enable(priv); - cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_RX); - cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_TX); - -} - -static struct net_device_stats *cpsw_ndo_get_stats(struct net_device *ndev) -{ - struct cpsw_priv *priv = netdev_priv(ndev); - return &priv->stats; -} - -#ifdef CONFIG_NET_POLL_CONTROLLER -static void cpsw_ndo_poll_controller(struct net_device *ndev) -{ - struct cpsw_priv *priv = netdev_priv(ndev); - - cpsw_intr_disable(priv); - cpdma_ctlr_int_ctrl(priv->dma, false); - cpsw_interrupt(ndev->irq, priv); - cpdma_ctlr_int_ctrl(priv->dma, true); - cpsw_intr_enable(priv); - cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_RX); - cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_TX); - -} -#endif - static inline int cpsw_add_vlan_ale_entry(struct cpsw_priv *priv, unsigned short vid) { int ret; + int unreg_mcast_mask = 0; + int mcast_mask; + u32 port_mask; + struct cpsw_common *cpsw = priv->cpsw; + + if (cpsw->data.dual_emac) { + port_mask = (1 << (priv->emac_port + 1)) | ALE_PORT_HOST; - ret = cpsw_ale_add_vlan(priv->ale, vid, - ALE_ALL_PORTS << priv->host_port, - 0, ALE_ALL_PORTS << priv->host_port, - (ALE_PORT_1 | ALE_PORT_2) << priv->host_port); + mcast_mask = ALE_PORT_HOST; + if (priv->ndev->flags & IFF_ALLMULTI) + unreg_mcast_mask = mcast_mask; + } else { + port_mask = ALE_ALL_PORTS; + mcast_mask = port_mask; + + if (priv->ndev->flags & IFF_ALLMULTI) + unreg_mcast_mask = ALE_ALL_PORTS; + else + unreg_mcast_mask = ALE_PORT_1 | ALE_PORT_2; + } + + ret = cpsw_ale_add_vlan(cpsw->ale, vid, port_mask, 0, port_mask, + unreg_mcast_mask); if (ret != 0) return ret; - ret = cpsw_ale_add_ucast(priv->ale, priv->mac_addr, - priv->host_port, ALE_VLAN, vid); + ret = cpsw_ale_add_ucast(cpsw->ale, priv->mac_addr, + HOST_PORT_NUM, ALE_VLAN, vid); if (ret != 0) goto clean_vid; - ret = cpsw_ale_add_mcast(priv->ale, priv->ndev->broadcast, - ALE_ALL_PORTS << priv->host_port, - ALE_VLAN, vid, 0); + ret = cpsw_ale_add_mcast(cpsw->ale, priv->ndev->broadcast, + mcast_mask, ALE_VLAN, vid, 0); if (ret != 0) goto clean_vlan_ucast; return 0; clean_vlan_ucast: - cpsw_ale_del_ucast(priv->ale, priv->mac_addr, - priv->host_port, ALE_VLAN, vid); + cpsw_ale_del_ucast(cpsw->ale, priv->mac_addr, + HOST_PORT_NUM, ALE_VLAN, vid); clean_vid: - cpsw_ale_del_vlan(priv->ale, vid, 0); + cpsw_ale_del_vlan(cpsw->ale, vid, 0); return ret; } @@ -1290,157 +1052,213 @@ static int cpsw_ndo_vlan_rx_add_vid(struct net_device *ndev, __be16 proto, u16 vid) { struct cpsw_priv *priv = netdev_priv(ndev); + struct cpsw_common *cpsw = priv->cpsw; + int ret; - if (vid == priv->data.default_vlan) + if (vid == cpsw->data.default_vlan) return 0; + ret = pm_runtime_resume_and_get(cpsw->dev); + if (ret < 0) + return ret; + + if (cpsw->data.dual_emac) { + /* In dual EMAC, reserved VLAN id should not be used for + * creating VLAN interfaces as this can break the dual + * EMAC port separation + */ + int i; + + for (i = 0; i < cpsw->data.slaves; i++) { + if (vid == cpsw->slaves[i].port_vlan) { + ret = -EINVAL; + goto err; + } + } + } + dev_info(priv->dev, "Adding vlanid %d to vlan filter\n", vid); - return cpsw_add_vlan_ale_entry(priv, vid); + ret = cpsw_add_vlan_ale_entry(priv, vid); +err: + pm_runtime_put(cpsw->dev); + return ret; } static int cpsw_ndo_vlan_rx_kill_vid(struct net_device *ndev, __be16 proto, u16 vid) { struct cpsw_priv *priv = netdev_priv(ndev); + struct cpsw_common *cpsw = priv->cpsw; int ret; - if (vid == priv->data.default_vlan) + if (vid == cpsw->data.default_vlan) return 0; - dev_info(priv->dev, "removing vlanid %d from vlan filter\n", vid); - ret = cpsw_ale_del_vlan(priv->ale, vid, 0); - if (ret != 0) + ret = pm_runtime_resume_and_get(cpsw->dev); + if (ret < 0) return ret; - ret = cpsw_ale_del_ucast(priv->ale, priv->mac_addr, - priv->host_port, ALE_VLAN, vid); - if (ret != 0) - return ret; + if (cpsw->data.dual_emac) { + int i; - return cpsw_ale_del_mcast(priv->ale, priv->ndev->broadcast, + for (i = 0; i < cpsw->data.slaves; i++) { + if (vid == cpsw->slaves[i].port_vlan) + goto err; + } + } + + dev_info(priv->dev, "removing vlanid %d from vlan filter\n", vid); + ret = cpsw_ale_del_vlan(cpsw->ale, vid, 0); + ret |= cpsw_ale_del_ucast(cpsw->ale, priv->mac_addr, + HOST_PORT_NUM, ALE_VLAN, vid); + ret |= cpsw_ale_del_mcast(cpsw->ale, priv->ndev->broadcast, 0, ALE_VLAN, vid); + ret |= cpsw_ale_flush_multicast(cpsw->ale, ALE_PORT_HOST, vid); +err: + pm_runtime_put(cpsw->dev); + return ret; +} + +static int cpsw_ndo_xdp_xmit(struct net_device *ndev, int n, + struct xdp_frame **frames, u32 flags) +{ + struct cpsw_priv *priv = netdev_priv(ndev); + struct cpsw_common *cpsw = priv->cpsw; + struct xdp_frame *xdpf; + int i, nxmit = 0, port; + + if (unlikely(flags & ~XDP_XMIT_FLAGS_MASK)) + return -EINVAL; + + for (i = 0; i < n; i++) { + xdpf = frames[i]; + if (xdpf->len < CPSW_MIN_PACKET_SIZE) + break; + + port = priv->emac_port + cpsw->data.dual_emac; + if (cpsw_xdp_tx_frame(priv, xdpf, NULL, port)) + break; + nxmit++; + } + + return nxmit; +} + +#ifdef CONFIG_NET_POLL_CONTROLLER +static void cpsw_ndo_poll_controller(struct net_device *ndev) +{ + struct cpsw_common *cpsw = ndev_to_cpsw(ndev); + + cpsw_intr_disable(cpsw); + cpsw_rx_interrupt(cpsw->irqs_table[0], cpsw); + cpsw_tx_interrupt(cpsw->irqs_table[1], cpsw); + cpsw_intr_enable(cpsw); +} +#endif + +/* We need a custom implementation of phy_do_ioctl_running() because in switch + * mode, dev->phydev may be different than the phy of the active_slave. We need + * to operate on the locally saved phy instead. + */ +static int cpsw_ndo_ioctl(struct net_device *dev, struct ifreq *req, int cmd) +{ + struct cpsw_priv *priv = netdev_priv(dev); + struct cpsw_common *cpsw = priv->cpsw; + int slave_no = cpsw_slave_index(cpsw, priv); + struct phy_device *phy; + + if (!netif_running(dev)) + return -EINVAL; + + phy = cpsw->slaves[slave_no].phy; + if (phy) + return phy_mii_ioctl(phy, req, cmd); + + return -EOPNOTSUPP; } static const struct net_device_ops cpsw_netdev_ops = { .ndo_open = cpsw_ndo_open, .ndo_stop = cpsw_ndo_stop, .ndo_start_xmit = cpsw_ndo_start_xmit, - .ndo_change_rx_flags = cpsw_ndo_change_rx_flags, - .ndo_do_ioctl = cpsw_ndo_ioctl, + .ndo_set_mac_address = cpsw_ndo_set_mac_address, + .ndo_eth_ioctl = cpsw_ndo_ioctl, .ndo_validate_addr = eth_validate_addr, - .ndo_change_mtu = eth_change_mtu, .ndo_tx_timeout = cpsw_ndo_tx_timeout, - .ndo_get_stats = cpsw_ndo_get_stats, .ndo_set_rx_mode = cpsw_ndo_set_rx_mode, + .ndo_set_tx_maxrate = cpsw_ndo_set_tx_maxrate, #ifdef CONFIG_NET_POLL_CONTROLLER .ndo_poll_controller = cpsw_ndo_poll_controller, #endif .ndo_vlan_rx_add_vid = cpsw_ndo_vlan_rx_add_vid, .ndo_vlan_rx_kill_vid = cpsw_ndo_vlan_rx_kill_vid, + .ndo_setup_tc = cpsw_ndo_setup_tc, + .ndo_bpf = cpsw_ndo_bpf, + .ndo_xdp_xmit = cpsw_ndo_xdp_xmit, + .ndo_hwtstamp_get = cpsw_hwtstamp_get, + .ndo_hwtstamp_set = cpsw_hwtstamp_set, }; static void cpsw_get_drvinfo(struct net_device *ndev, struct ethtool_drvinfo *info) { - struct cpsw_priv *priv = netdev_priv(ndev); - - strlcpy(info->driver, "TI CPSW Driver v1.0", sizeof(info->driver)); - strlcpy(info->version, "1.0", sizeof(info->version)); - strlcpy(info->bus_info, priv->pdev->name, sizeof(info->bus_info)); -} + struct cpsw_common *cpsw = ndev_to_cpsw(ndev); + struct platform_device *pdev = to_platform_device(cpsw->dev); -static u32 cpsw_get_msglevel(struct net_device *ndev) -{ - struct cpsw_priv *priv = netdev_priv(ndev); - return priv->msg_enable; + strscpy(info->driver, "cpsw", sizeof(info->driver)); + strscpy(info->version, "1.0", sizeof(info->version)); + strscpy(info->bus_info, pdev->name, sizeof(info->bus_info)); } -static void cpsw_set_msglevel(struct net_device *ndev, u32 value) +static int cpsw_set_pauseparam(struct net_device *ndev, + struct ethtool_pauseparam *pause) { struct cpsw_priv *priv = netdev_priv(ndev); - priv->msg_enable = value; -} + bool link; -static int cpsw_get_ts_info(struct net_device *ndev, - struct ethtool_ts_info *info) -{ -#ifdef CONFIG_TI_CPTS - struct cpsw_priv *priv = netdev_priv(ndev); + priv->rx_pause = pause->rx_pause ? true : false; + priv->tx_pause = pause->tx_pause ? true : false; - info->so_timestamping = - SOF_TIMESTAMPING_TX_HARDWARE | - SOF_TIMESTAMPING_TX_SOFTWARE | - SOF_TIMESTAMPING_RX_HARDWARE | - SOF_TIMESTAMPING_RX_SOFTWARE | - SOF_TIMESTAMPING_SOFTWARE | - SOF_TIMESTAMPING_RAW_HARDWARE; - info->phc_index = priv->cpts->phc_index; - info->tx_types = - (1 << HWTSTAMP_TX_OFF) | - (1 << HWTSTAMP_TX_ON); - info->rx_filters = - (1 << HWTSTAMP_FILTER_NONE) | - (1 << HWTSTAMP_FILTER_PTP_V2_EVENT); -#else - info->so_timestamping = - SOF_TIMESTAMPING_TX_SOFTWARE | - SOF_TIMESTAMPING_RX_SOFTWARE | - SOF_TIMESTAMPING_SOFTWARE; - info->phc_index = -1; - info->tx_types = 0; - info->rx_filters = 0; -#endif + for_each_slave(priv, _cpsw_adjust_link, priv, &link); return 0; } -static int cpsw_get_settings(struct net_device *ndev, - struct ethtool_cmd *ecmd) -{ - struct cpsw_priv *priv = netdev_priv(ndev); - int slave_no = cpsw_slave_index(priv); - - if (priv->slaves[slave_no].phy) - return phy_ethtool_gset(priv->slaves[slave_no].phy, ecmd); - else - return -EOPNOTSUPP; -} - -static int cpsw_set_settings(struct net_device *ndev, struct ethtool_cmd *ecmd) +static int cpsw_set_channels(struct net_device *ndev, + struct ethtool_channels *chs) { - struct cpsw_priv *priv = netdev_priv(ndev); - int slave_no = cpsw_slave_index(priv); - - if (priv->slaves[slave_no].phy) - return phy_ethtool_sset(priv->slaves[slave_no].phy, ecmd); - else - return -EOPNOTSUPP; + return cpsw_set_channels_common(ndev, chs, cpsw_rx_handler); } static const struct ethtool_ops cpsw_ethtool_ops = { + .supported_coalesce_params = ETHTOOL_COALESCE_RX_USECS, .get_drvinfo = cpsw_get_drvinfo, .get_msglevel = cpsw_get_msglevel, .set_msglevel = cpsw_set_msglevel, .get_link = ethtool_op_get_link, .get_ts_info = cpsw_get_ts_info, - .get_settings = cpsw_get_settings, - .set_settings = cpsw_set_settings, .get_coalesce = cpsw_get_coalesce, .set_coalesce = cpsw_set_coalesce, + .get_sset_count = cpsw_get_sset_count, + .get_strings = cpsw_get_strings, + .get_ethtool_stats = cpsw_get_ethtool_stats, + .get_pauseparam = cpsw_get_pauseparam, + .set_pauseparam = cpsw_set_pauseparam, + .get_wol = cpsw_get_wol, + .set_wol = cpsw_set_wol, + .get_regs_len = cpsw_get_regs_len, + .get_regs = cpsw_get_regs, + .begin = cpsw_ethtool_op_begin, + .complete = cpsw_ethtool_op_complete, + .get_channels = cpsw_get_channels, + .set_channels = cpsw_set_channels, + .get_link_ksettings = cpsw_get_link_ksettings, + .set_link_ksettings = cpsw_set_link_ksettings, + .get_eee = cpsw_get_eee, + .nway_reset = cpsw_nway_reset, + .get_ringparam = cpsw_get_ringparam, + .set_ringparam = cpsw_set_ringparam, }; -static void cpsw_slave_init(struct cpsw_slave *slave, struct cpsw_priv *priv, - u32 slave_reg_ofs, u32 sliver_reg_ofs) -{ - void __iomem *regs = priv->regs; - int slave_num = slave->slave_num; - struct cpsw_slave_data *data = priv->data.slave_data + slave_num; - - slave->data = data; - slave->regs = regs + slave_reg_ofs; - slave->sliver = regs + sliver_reg_ofs; - slave->port_vlan = data->dual_emac_res_vlan; -} - static int cpsw_probe_dt(struct cpsw_platform_data *data, struct platform_device *pdev) { @@ -1453,74 +1271,44 @@ static int cpsw_probe_dt(struct cpsw_platform_data *data, return -EINVAL; if (of_property_read_u32(node, "slaves", &prop)) { - pr_err("Missing slaves property in the DT.\n"); + dev_err(&pdev->dev, "Missing slaves property in the DT.\n"); return -EINVAL; } data->slaves = prop; if (of_property_read_u32(node, "active_slave", &prop)) { - pr_err("Missing active_slave property in the DT.\n"); - ret = -EINVAL; - goto error_ret; + dev_err(&pdev->dev, "Missing active_slave property in the DT.\n"); + return -EINVAL; } data->active_slave = prop; - if (of_property_read_u32(node, "cpts_clock_mult", &prop)) { - pr_err("Missing cpts_clock_mult property in the DT.\n"); - ret = -EINVAL; - goto error_ret; - } - data->cpts_clock_mult = prop; - - if (of_property_read_u32(node, "cpts_clock_shift", &prop)) { - pr_err("Missing cpts_clock_shift property in the DT.\n"); - ret = -EINVAL; - goto error_ret; - } - data->cpts_clock_shift = prop; - - data->slave_data = kcalloc(data->slaves, sizeof(struct cpsw_slave_data), - GFP_KERNEL); + data->slave_data = devm_kcalloc(&pdev->dev, + data->slaves, + sizeof(struct cpsw_slave_data), + GFP_KERNEL); if (!data->slave_data) - return -EINVAL; + return -ENOMEM; if (of_property_read_u32(node, "cpdma_channels", &prop)) { - pr_err("Missing cpdma_channels property in the DT.\n"); - ret = -EINVAL; - goto error_ret; + dev_err(&pdev->dev, "Missing cpdma_channels property in the DT.\n"); + return -EINVAL; } data->channels = prop; - if (of_property_read_u32(node, "ale_entries", &prop)) { - pr_err("Missing ale_entries property in the DT.\n"); - ret = -EINVAL; - goto error_ret; - } - data->ale_entries = prop; - if (of_property_read_u32(node, "bd_ram_size", &prop)) { - pr_err("Missing bd_ram_size property in the DT.\n"); - ret = -EINVAL; - goto error_ret; + dev_err(&pdev->dev, "Missing bd_ram_size property in the DT.\n"); + return -EINVAL; } data->bd_ram_size = prop; - if (of_property_read_u32(node, "rx_descs", &prop)) { - pr_err("Missing rx_descs property in the DT.\n"); - ret = -EINVAL; - goto error_ret; - } - data->rx_descs = prop; - if (of_property_read_u32(node, "mac_control", &prop)) { - pr_err("Missing mac_control property in the DT.\n"); - ret = -EINVAL; - goto error_ret; + dev_err(&pdev->dev, "Missing mac_control property in the DT.\n"); + return -EINVAL; } data->mac_control = prop; - if (!of_property_read_u32(node, "dual_emac", &prop)) - data->dual_emac = prop; + if (of_property_read_bool(node, "dual_emac")) + data->dual_emac = true; /* * Populate all the child nodes here... @@ -1528,518 +1316,527 @@ static int cpsw_probe_dt(struct cpsw_platform_data *data, ret = of_platform_populate(node, NULL, NULL, &pdev->dev); /* We do not want to force this, as in some cases may not have child */ if (ret) - pr_warn("Doesn't have any child node\n"); + dev_warn(&pdev->dev, "Doesn't have any child node\n"); - for_each_node_by_name(slave_node, "slave") { + for_each_available_child_of_node(node, slave_node) { struct cpsw_slave_data *slave_data = data->slave_data + i; - const void *mac_addr = NULL; - u32 phyid; int lenp; const __be32 *parp; - struct device_node *mdio_node; - struct platform_device *mdio; - parp = of_get_property(slave_node, "phy_id", &lenp); - if ((parp == NULL) || (lenp != (sizeof(void *) * 2))) { - pr_err("Missing slave[%d] phy_id property\n", i); - ret = -EINVAL; - goto error_ret; + /* This is no slave child node, continue */ + if (!of_node_name_eq(slave_node, "slave")) + continue; + + slave_data->ifphy = devm_of_phy_get(&pdev->dev, slave_node, + NULL); + if (!IS_ENABLED(CONFIG_TI_CPSW_PHY_SEL) && + IS_ERR(slave_data->ifphy)) { + ret = PTR_ERR(slave_data->ifphy); + dev_err(&pdev->dev, + "%d: Error retrieving port phy: %d\n", i, ret); + goto err_node_put; } - mdio_node = of_find_node_by_phandle(be32_to_cpup(parp)); - phyid = be32_to_cpup(parp+1); - mdio = of_find_device_by_node(mdio_node); - snprintf(slave_data->phy_id, sizeof(slave_data->phy_id), - PHY_ID_FMT, mdio->name, phyid); - mac_addr = of_get_mac_address(slave_node); - if (mac_addr) - memcpy(slave_data->mac_addr, mac_addr, ETH_ALEN); - - slave_data->phy_if = of_get_phy_mode(slave_node); + slave_data->slave_node = slave_node; + slave_data->phy_node = of_parse_phandle(slave_node, + "phy-handle", 0); + parp = of_get_property(slave_node, "phy_id", &lenp); + if (slave_data->phy_node) { + dev_dbg(&pdev->dev, + "slave[%d] using phy-handle=\"%pOF\"\n", + i, slave_data->phy_node); + } else if (of_phy_is_fixed_link(slave_node)) { + /* In the case of a fixed PHY, the DT node associated + * to the PHY is the Ethernet MAC DT node. + */ + ret = of_phy_register_fixed_link(slave_node); + if (ret) { + dev_err_probe(&pdev->dev, ret, "failed to register fixed-link phy\n"); + goto err_node_put; + } + slave_data->phy_node = of_node_get(slave_node); + } else if (parp) { + u32 phyid; + struct device_node *mdio_node; + struct platform_device *mdio; + + if (lenp != (sizeof(__be32) * 2)) { + dev_err(&pdev->dev, "Invalid slave[%d] phy_id property\n", i); + goto no_phy_slave; + } + mdio_node = of_find_node_by_phandle(be32_to_cpup(parp)); + phyid = be32_to_cpup(parp+1); + mdio = of_find_device_by_node(mdio_node); + of_node_put(mdio_node); + if (!mdio) { + dev_err(&pdev->dev, "Missing mdio platform device\n"); + ret = -EINVAL; + goto err_node_put; + } + snprintf(slave_data->phy_id, sizeof(slave_data->phy_id), + PHY_ID_FMT, mdio->name, phyid); + put_device(&mdio->dev); + } else { + dev_err(&pdev->dev, + "No slave[%d] phy_id, phy-handle, or fixed-link property\n", + i); + goto no_phy_slave; + } + ret = of_get_phy_mode(slave_node, &slave_data->phy_if); + if (ret) { + dev_err(&pdev->dev, "Missing or malformed slave[%d] phy-mode property\n", + i); + goto err_node_put; + } +no_phy_slave: + ret = of_get_mac_address(slave_node, slave_data->mac_addr); + if (ret) { + ret = ti_cm_get_macid(&pdev->dev, i, + slave_data->mac_addr); + if (ret) + goto err_node_put; + } if (data->dual_emac) { if (of_property_read_u32(slave_node, "dual_emac_res_vlan", &prop)) { - pr_err("Missing dual_emac_res_vlan in DT.\n"); + dev_err(&pdev->dev, "Missing dual_emac_res_vlan in DT.\n"); slave_data->dual_emac_res_vlan = i+1; - pr_err("Using %d as Reserved VLAN for %d slave\n", - slave_data->dual_emac_res_vlan, i); + dev_err(&pdev->dev, "Using %d as Reserved VLAN for %d slave\n", + slave_data->dual_emac_res_vlan, i); } else { slave_data->dual_emac_res_vlan = prop; } } i++; + if (i == data->slaves) { + ret = 0; + goto err_node_put; + } } return 0; -error_ret: - kfree(data->slave_data); +err_node_put: + of_node_put(slave_node); return ret; } -static int cpsw_probe_dual_emac(struct platform_device *pdev, - struct cpsw_priv *priv) +static void cpsw_remove_dt(struct platform_device *pdev) { - struct cpsw_platform_data *data = &priv->data; + struct cpsw_common *cpsw = platform_get_drvdata(pdev); + struct cpsw_platform_data *data = &cpsw->data; + struct device_node *node = pdev->dev.of_node; + struct device_node *slave_node; + int i = 0; + + for_each_available_child_of_node(node, slave_node) { + struct cpsw_slave_data *slave_data = &data->slave_data[i]; + + if (!of_node_name_eq(slave_node, "slave")) + continue; + + if (of_phy_is_fixed_link(slave_node)) + of_phy_deregister_fixed_link(slave_node); + + of_node_put(slave_data->phy_node); + + i++; + if (i == data->slaves) { + of_node_put(slave_node); + break; + } + } + + of_platform_depopulate(&pdev->dev); +} + +static int cpsw_probe_dual_emac(struct cpsw_priv *priv) +{ + struct cpsw_common *cpsw = priv->cpsw; + struct cpsw_platform_data *data = &cpsw->data; struct net_device *ndev; struct cpsw_priv *priv_sl2; - int ret = 0, i; + int ret = 0; - ndev = alloc_etherdev(sizeof(struct cpsw_priv)); + ndev = devm_alloc_etherdev_mqs(cpsw->dev, sizeof(struct cpsw_priv), + CPSW_MAX_QUEUES, CPSW_MAX_QUEUES); if (!ndev) { - pr_err("cpsw: error allocating net_device\n"); + dev_err(cpsw->dev, "cpsw: error allocating net_device\n"); return -ENOMEM; } priv_sl2 = netdev_priv(ndev); - spin_lock_init(&priv_sl2->lock); - priv_sl2->data = *data; - priv_sl2->pdev = pdev; + priv_sl2->cpsw = cpsw; priv_sl2->ndev = ndev; priv_sl2->dev = &ndev->dev; priv_sl2->msg_enable = netif_msg_init(debug_level, CPSW_DEBUG); - priv_sl2->rx_packet_max = max(rx_packet_max, 128); if (is_valid_ether_addr(data->slave_data[1].mac_addr)) { memcpy(priv_sl2->mac_addr, data->slave_data[1].mac_addr, ETH_ALEN); - pr_info("cpsw: Detected MACID = %pM\n", priv_sl2->mac_addr); + dev_info(cpsw->dev, "cpsw: Detected MACID = %pM\n", + priv_sl2->mac_addr); } else { - random_ether_addr(priv_sl2->mac_addr); - pr_info("cpsw: Random MACID = %pM\n", priv_sl2->mac_addr); + eth_random_addr(priv_sl2->mac_addr); + dev_info(cpsw->dev, "cpsw: Random MACID = %pM\n", + priv_sl2->mac_addr); } - memcpy(ndev->dev_addr, priv_sl2->mac_addr, ETH_ALEN); - - priv_sl2->slaves = priv->slaves; - priv_sl2->clk = priv->clk; - - priv_sl2->coal_intvl = 0; - priv_sl2->bus_freq_mhz = priv->bus_freq_mhz; - - priv_sl2->cpsw_res = priv->cpsw_res; - priv_sl2->regs = priv->regs; - priv_sl2->host_port = priv->host_port; - priv_sl2->host_port_regs = priv->host_port_regs; - priv_sl2->wr_regs = priv->wr_regs; - priv_sl2->dma = priv->dma; - priv_sl2->txch = priv->txch; - priv_sl2->rxch = priv->rxch; - priv_sl2->ale = priv->ale; - priv_sl2->emac_port = 1; - priv->slaves[1].ndev = ndev; - priv_sl2->cpts = priv->cpts; - priv_sl2->version = priv->version; + eth_hw_addr_set(ndev, priv_sl2->mac_addr); - for (i = 0; i < priv->num_irqs; i++) { - priv_sl2->irqs_table[i] = priv->irqs_table[i]; - priv_sl2->num_irqs = priv->num_irqs; - } - ndev->features |= NETIF_F_HW_VLAN_CTAG_FILTER; + priv_sl2->emac_port = 1; + cpsw->slaves[1].ndev = ndev; + ndev->features |= NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_HW_VLAN_CTAG_RX; + ndev->xdp_features = NETDEV_XDP_ACT_BASIC | NETDEV_XDP_ACT_REDIRECT | + NETDEV_XDP_ACT_NDO_XMIT; ndev->netdev_ops = &cpsw_netdev_ops; - SET_ETHTOOL_OPS(ndev, &cpsw_ethtool_ops); - netif_napi_add(ndev, &priv_sl2->napi, cpsw_poll, CPSW_POLL_WEIGHT); + ndev->ethtool_ops = &cpsw_ethtool_ops; /* register the network device */ - SET_NETDEV_DEV(ndev, &pdev->dev); + SET_NETDEV_DEV(ndev, cpsw->dev); + ndev->dev.of_node = cpsw->slaves[1].data->slave_node; ret = register_netdev(ndev); - if (ret) { - pr_err("cpsw: error registering net device\n"); - free_netdev(ndev); - ret = -ENODEV; - } + if (ret) + dev_err(cpsw->dev, "cpsw: error registering net device\n"); return ret; } +static const struct of_device_id cpsw_of_mtable[] = { + { .compatible = "ti,cpsw"}, + { .compatible = "ti,am335x-cpsw"}, + { .compatible = "ti,am4372-cpsw"}, + { .compatible = "ti,dra7-cpsw"}, + { /* sentinel */ }, +}; +MODULE_DEVICE_TABLE(of, cpsw_of_mtable); + +static const struct soc_device_attribute cpsw_soc_devices[] = { + { .family = "AM33xx", .revision = "ES1.0"}, + { /* sentinel */ } +}; + static int cpsw_probe(struct platform_device *pdev) { + struct device *dev = &pdev->dev; + struct clk *clk; struct cpsw_platform_data *data; struct net_device *ndev; struct cpsw_priv *priv; - struct cpdma_params dma_params; - struct cpsw_ale_params ale_params; - void __iomem *ss_regs, *wr_regs; - struct resource *res; - u32 slave_offset, sliver_offset, slave_size; - int ret = 0, i, k = 0; - - ndev = alloc_etherdev(sizeof(struct cpsw_priv)); - if (!ndev) { - pr_err("error allocating net_device\n"); + void __iomem *ss_regs; + struct resource *ss_res; + struct gpio_descs *mode; + const struct soc_device_attribute *soc; + struct cpsw_common *cpsw; + int ret = 0, ch; + int irq; + + cpsw = devm_kzalloc(dev, sizeof(struct cpsw_common), GFP_KERNEL); + if (!cpsw) return -ENOMEM; + + platform_set_drvdata(pdev, cpsw); + cpsw_slave_index = cpsw_slave_index_priv; + + cpsw->dev = dev; + + mode = devm_gpiod_get_array_optional(dev, "mode", GPIOD_OUT_LOW); + if (IS_ERR(mode)) { + ret = PTR_ERR(mode); + dev_err(dev, "gpio request failed, ret %d\n", ret); + return ret; } - platform_set_drvdata(pdev, ndev); - priv = netdev_priv(ndev); - spin_lock_init(&priv->lock); - priv->pdev = pdev; - priv->ndev = ndev; - priv->dev = &ndev->dev; - priv->msg_enable = netif_msg_init(debug_level, CPSW_DEBUG); - priv->rx_packet_max = max(rx_packet_max, 128); - priv->cpts = devm_kzalloc(&pdev->dev, sizeof(struct cpts), GFP_KERNEL); - priv->irq_enabled = true; - if (!priv->cpts) { - pr_err("error allocating cpts\n"); - goto clean_ndev_ret; + clk = devm_clk_get(dev, "fck"); + if (IS_ERR(clk)) { + ret = PTR_ERR(clk); + dev_err(dev, "fck is not found %d\n", ret); + return ret; } + cpsw->bus_freq_mhz = clk_get_rate(clk) / 1000000; + + ss_regs = devm_platform_get_and_ioremap_resource(pdev, 0, &ss_res); + if (IS_ERR(ss_regs)) + return PTR_ERR(ss_regs); + cpsw->regs = ss_regs; + + cpsw->wr_regs = devm_platform_ioremap_resource(pdev, 1); + if (IS_ERR(cpsw->wr_regs)) + return PTR_ERR(cpsw->wr_regs); + + /* RX IRQ */ + irq = platform_get_irq(pdev, 1); + if (irq < 0) + return irq; + cpsw->irqs_table[0] = irq; + + /* TX IRQ */ + irq = platform_get_irq(pdev, 2); + if (irq < 0) + return irq; + cpsw->irqs_table[1] = irq; + + /* get misc irq*/ + irq = platform_get_irq(pdev, 3); + if (irq <= 0) + return irq; + cpsw->misc_irq = irq; /* * This may be required here for child devices. */ - pm_runtime_enable(&pdev->dev); + pm_runtime_enable(dev); - /* Select default pin state */ - pinctrl_pm_select_default_state(&pdev->dev); - - if (cpsw_probe_dt(&priv->data, pdev)) { - pr_err("cpsw: platform data missing\n"); - ret = -ENODEV; - goto clean_ndev_ret; - } - data = &priv->data; - - if (is_valid_ether_addr(data->slave_data[0].mac_addr)) { - memcpy(priv->mac_addr, data->slave_data[0].mac_addr, ETH_ALEN); - pr_info("Detected MACID = %pM\n", priv->mac_addr); - } else { - eth_random_addr(priv->mac_addr); - pr_info("Random MACID = %pM\n", priv->mac_addr); - } - - memcpy(ndev->dev_addr, priv->mac_addr, ETH_ALEN); + /* Need to enable clocks with runtime PM api to access module + * registers + */ + ret = pm_runtime_resume_and_get(dev); + if (ret < 0) + goto clean_runtime_disable_ret; - priv->slaves = kzalloc(sizeof(struct cpsw_slave) * data->slaves, - GFP_KERNEL); - if (!priv->slaves) { - ret = -EBUSY; - goto clean_ndev_ret; - } - for (i = 0; i < data->slaves; i++) - priv->slaves[i].slave_num = i; + ret = cpsw_probe_dt(&cpsw->data, pdev); + if (ret) + goto clean_dt_ret; - priv->slaves[0].ndev = ndev; - priv->emac_port = 0; + soc = soc_device_match(cpsw_soc_devices); + if (soc) + cpsw->quirk_irq = true; - priv->clk = clk_get(&pdev->dev, "fck"); - if (IS_ERR(priv->clk)) { - dev_err(&pdev->dev, "fck is not found\n"); - ret = -ENODEV; - goto clean_slave_ret; - } - priv->coal_intvl = 0; - priv->bus_freq_mhz = clk_get_rate(priv->clk) / 1000000; - - priv->cpsw_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!priv->cpsw_res) { - dev_err(priv->dev, "error getting i/o resource\n"); - ret = -ENOENT; - goto clean_clk_ret; - } - if (!request_mem_region(priv->cpsw_res->start, - resource_size(priv->cpsw_res), ndev->name)) { - dev_err(priv->dev, "failed request i/o region\n"); - ret = -ENXIO; - goto clean_clk_ret; - } - ss_regs = ioremap(priv->cpsw_res->start, resource_size(priv->cpsw_res)); - if (!ss_regs) { - dev_err(priv->dev, "unable to map i/o region\n"); - goto clean_cpsw_iores_ret; - } - priv->regs = ss_regs; - priv->version = __raw_readl(&priv->regs->id_ver); - priv->host_port = HOST_PORT_NUM; - - priv->cpsw_wr_res = platform_get_resource(pdev, IORESOURCE_MEM, 1); - if (!priv->cpsw_wr_res) { - dev_err(priv->dev, "error getting i/o resource\n"); - ret = -ENOENT; - goto clean_iomap_ret; - } - if (!request_mem_region(priv->cpsw_wr_res->start, - resource_size(priv->cpsw_wr_res), ndev->name)) { - dev_err(priv->dev, "failed request i/o region\n"); - ret = -ENXIO; - goto clean_iomap_ret; - } - wr_regs = ioremap(priv->cpsw_wr_res->start, - resource_size(priv->cpsw_wr_res)); - if (!wr_regs) { - dev_err(priv->dev, "unable to map i/o region\n"); - goto clean_cpsw_wr_iores_ret; + data = &cpsw->data; + cpsw->slaves = devm_kcalloc(dev, + data->slaves, sizeof(struct cpsw_slave), + GFP_KERNEL); + if (!cpsw->slaves) { + ret = -ENOMEM; + goto clean_dt_ret; } - priv->wr_regs = wr_regs; - memset(&dma_params, 0, sizeof(dma_params)); - memset(&ale_params, 0, sizeof(ale_params)); + cpsw->rx_packet_max = max(rx_packet_max, CPSW_MAX_PACKET_SIZE); + cpsw->descs_pool_size = descs_pool_size; - switch (priv->version) { - case CPSW_VERSION_1: - priv->host_port_regs = ss_regs + CPSW1_HOST_PORT_OFFSET; - priv->cpts->reg = ss_regs + CPSW1_CPTS_OFFSET; - dma_params.dmaregs = ss_regs + CPSW1_CPDMA_OFFSET; - dma_params.txhdp = ss_regs + CPSW1_STATERAM_OFFSET; - ale_params.ale_regs = ss_regs + CPSW1_ALE_OFFSET; - slave_offset = CPSW1_SLAVE_OFFSET; - slave_size = CPSW1_SLAVE_SIZE; - sliver_offset = CPSW1_SLIVER_OFFSET; - dma_params.desc_mem_phys = 0; - break; - case CPSW_VERSION_2: - priv->host_port_regs = ss_regs + CPSW2_HOST_PORT_OFFSET; - priv->cpts->reg = ss_regs + CPSW2_CPTS_OFFSET; - dma_params.dmaregs = ss_regs + CPSW2_CPDMA_OFFSET; - dma_params.txhdp = ss_regs + CPSW2_STATERAM_OFFSET; - ale_params.ale_regs = ss_regs + CPSW2_ALE_OFFSET; - slave_offset = CPSW2_SLAVE_OFFSET; - slave_size = CPSW2_SLAVE_SIZE; - sliver_offset = CPSW2_SLIVER_OFFSET; - dma_params.desc_mem_phys = - (u32 __force) priv->cpsw_res->start + CPSW2_BD_OFFSET; - break; - default: - dev_err(priv->dev, "unknown version 0x%08x\n", priv->version); - ret = -ENODEV; - goto clean_cpsw_wr_iores_ret; - } - for (i = 0; i < priv->data.slaves; i++) { - struct cpsw_slave *slave = &priv->slaves[i]; - cpsw_slave_init(slave, priv, slave_offset, sliver_offset); - slave_offset += slave_size; - sliver_offset += SLIVER_SIZE; + ret = cpsw_init_common(cpsw, ss_regs, ale_ageout, + ss_res->start + CPSW2_BD_OFFSET, + descs_pool_size); + if (ret) + goto clean_dt_ret; + + ch = cpsw->quirk_irq ? 0 : 7; + cpsw->txv[0].ch = cpdma_chan_create(cpsw->dma, ch, cpsw_tx_handler, 0); + if (IS_ERR(cpsw->txv[0].ch)) { + dev_err(dev, "error initializing tx dma channel\n"); + ret = PTR_ERR(cpsw->txv[0].ch); + goto clean_cpts; } - dma_params.dev = &pdev->dev; - dma_params.rxthresh = dma_params.dmaregs + CPDMA_RXTHRESH; - dma_params.rxfree = dma_params.dmaregs + CPDMA_RXFREE; - dma_params.rxhdp = dma_params.txhdp + CPDMA_RXHDP; - dma_params.txcp = dma_params.txhdp + CPDMA_TXCP; - dma_params.rxcp = dma_params.txhdp + CPDMA_RXCP; - - dma_params.num_chan = data->channels; - dma_params.has_soft_reset = true; - dma_params.min_packet_size = CPSW_MIN_PACKET_SIZE; - dma_params.desc_mem_size = data->bd_ram_size; - dma_params.desc_align = 16; - dma_params.has_ext_regs = true; - dma_params.desc_hw_addr = dma_params.desc_mem_phys; - - priv->dma = cpdma_ctlr_create(&dma_params); - if (!priv->dma) { - dev_err(priv->dev, "error initializing dma\n"); - ret = -ENOMEM; - goto clean_wr_iomap_ret; + cpsw->rxv[0].ch = cpdma_chan_create(cpsw->dma, 0, cpsw_rx_handler, 1); + if (IS_ERR(cpsw->rxv[0].ch)) { + dev_err(dev, "error initializing rx dma channel\n"); + ret = PTR_ERR(cpsw->rxv[0].ch); + goto clean_cpts; } + cpsw_split_res(cpsw); - priv->txch = cpdma_chan_create(priv->dma, tx_chan_num(0), - cpsw_tx_handler); - priv->rxch = cpdma_chan_create(priv->dma, rx_chan_num(0), - cpsw_rx_handler); - - if (WARN_ON(!priv->txch || !priv->rxch)) { - dev_err(priv->dev, "error initializing dma channels\n"); + /* setup netdev */ + ndev = devm_alloc_etherdev_mqs(dev, sizeof(struct cpsw_priv), + CPSW_MAX_QUEUES, CPSW_MAX_QUEUES); + if (!ndev) { + dev_err(dev, "error allocating net_device\n"); ret = -ENOMEM; - goto clean_dma_ret; + goto clean_cpts; } - ale_params.dev = &ndev->dev; - ale_params.ale_ageout = ale_ageout; - ale_params.ale_entries = data->ale_entries; - ale_params.ale_ports = data->slaves; + priv = netdev_priv(ndev); + priv->cpsw = cpsw; + priv->ndev = ndev; + priv->dev = dev; + priv->msg_enable = netif_msg_init(debug_level, CPSW_DEBUG); + priv->emac_port = 0; - priv->ale = cpsw_ale_create(&ale_params); - if (!priv->ale) { - dev_err(priv->dev, "error initializing ale engine\n"); - ret = -ENODEV; - goto clean_dma_ret; + if (is_valid_ether_addr(data->slave_data[0].mac_addr)) { + memcpy(priv->mac_addr, data->slave_data[0].mac_addr, ETH_ALEN); + dev_info(dev, "Detected MACID = %pM\n", priv->mac_addr); + } else { + eth_random_addr(priv->mac_addr); + dev_info(dev, "Random MACID = %pM\n", priv->mac_addr); } - ndev->irq = platform_get_irq(pdev, 0); - if (ndev->irq < 0) { - dev_err(priv->dev, "error getting irq resource\n"); - ret = -ENOENT; - goto clean_ale_ret; - } + eth_hw_addr_set(ndev, priv->mac_addr); - while ((res = platform_get_resource(priv->pdev, IORESOURCE_IRQ, k))) { - for (i = res->start; i <= res->end; i++) { - if (request_irq(i, cpsw_interrupt, IRQF_DISABLED, - dev_name(&pdev->dev), priv)) { - dev_err(priv->dev, "error attaching irq\n"); - goto clean_ale_ret; - } - priv->irqs_table[k] = i; - priv->num_irqs = k + 1; - } - k++; - } + cpsw->slaves[0].ndev = ndev; - ndev->features |= NETIF_F_HW_VLAN_CTAG_FILTER; + ndev->features |= NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_HW_VLAN_CTAG_RX; + ndev->xdp_features = NETDEV_XDP_ACT_BASIC | NETDEV_XDP_ACT_REDIRECT | + NETDEV_XDP_ACT_NDO_XMIT; + /* Hijack PHY timestamping requests in order to block them */ + if (!cpsw->data.dual_emac) + ndev->see_all_hwtstamp_requests = true; ndev->netdev_ops = &cpsw_netdev_ops; - SET_ETHTOOL_OPS(ndev, &cpsw_ethtool_ops); - netif_napi_add(ndev, &priv->napi, cpsw_poll, CPSW_POLL_WEIGHT); + ndev->ethtool_ops = &cpsw_ethtool_ops; + netif_napi_add(ndev, &cpsw->napi_rx, + cpsw->quirk_irq ? cpsw_rx_poll : cpsw_rx_mq_poll); + netif_napi_add_tx(ndev, &cpsw->napi_tx, + cpsw->quirk_irq ? cpsw_tx_poll : cpsw_tx_mq_poll); /* register the network device */ - SET_NETDEV_DEV(ndev, &pdev->dev); + SET_NETDEV_DEV(ndev, dev); + ndev->dev.of_node = cpsw->slaves[0].data->slave_node; ret = register_netdev(ndev); if (ret) { - dev_err(priv->dev, "error registering net device\n"); + dev_err(dev, "error registering net device\n"); ret = -ENODEV; - goto clean_irq_ret; + goto clean_cpts; } - if (cpts_register(&pdev->dev, priv->cpts, - data->cpts_clock_mult, data->cpts_clock_shift)) - dev_err(priv->dev, "error registering cpts device\n"); - - cpsw_notice(priv, probe, "initialized device (regs %x, irq %d)\n", - priv->cpsw_res->start, ndev->irq); - - if (priv->data.dual_emac) { - ret = cpsw_probe_dual_emac(pdev, priv); + if (cpsw->data.dual_emac) { + ret = cpsw_probe_dual_emac(priv); if (ret) { cpsw_err(priv, probe, "error probe slave 2 emac interface\n"); - goto clean_irq_ret; + goto clean_unregister_netdev_ret; } } + /* Grab RX and TX IRQs. Note that we also have RX_THRESHOLD and + * MISC IRQs which are always kept disabled with this driver so + * we will not request them. + * + * If anyone wants to implement support for those, make sure to + * first request and append them to irqs_table array. + */ + ret = devm_request_irq(dev, cpsw->irqs_table[0], cpsw_rx_interrupt, + 0, dev_name(dev), cpsw); + if (ret < 0) { + dev_err(dev, "error attaching irq (%d)\n", ret); + goto clean_unregister_netdev_ret; + } + + + ret = devm_request_irq(dev, cpsw->irqs_table[1], cpsw_tx_interrupt, + 0, dev_name(&pdev->dev), cpsw); + if (ret < 0) { + dev_err(dev, "error attaching irq (%d)\n", ret); + goto clean_unregister_netdev_ret; + } + + if (!cpsw->cpts) + goto skip_cpts; + + ret = devm_request_irq(&pdev->dev, cpsw->misc_irq, cpsw_misc_interrupt, + 0, dev_name(&pdev->dev), cpsw); + if (ret < 0) { + dev_err(dev, "error attaching misc irq (%d)\n", ret); + goto clean_unregister_netdev_ret; + } + + /* Enable misc CPTS evnt_pend IRQ */ + cpts_set_irqpoll(cpsw->cpts, false); + +skip_cpts: + cpsw_notice(priv, probe, + "initialized device (regs %pa, irq %d, pool size %d)\n", + &ss_res->start, cpsw->irqs_table[0], descs_pool_size); + + pm_runtime_put(&pdev->dev); + return 0; -clean_irq_ret: - for (i = 0; i < priv->num_irqs; i++) - free_irq(priv->irqs_table[i], priv); -clean_ale_ret: - cpsw_ale_destroy(priv->ale); -clean_dma_ret: - cpdma_chan_destroy(priv->txch); - cpdma_chan_destroy(priv->rxch); - cpdma_ctlr_destroy(priv->dma); -clean_wr_iomap_ret: - iounmap(priv->wr_regs); -clean_cpsw_wr_iores_ret: - release_mem_region(priv->cpsw_wr_res->start, - resource_size(priv->cpsw_wr_res)); -clean_iomap_ret: - iounmap(priv->regs); -clean_cpsw_iores_ret: - release_mem_region(priv->cpsw_res->start, - resource_size(priv->cpsw_res)); -clean_clk_ret: - clk_put(priv->clk); -clean_slave_ret: +clean_unregister_netdev_ret: + unregister_netdev(ndev); +clean_cpts: + cpts_release(cpsw->cpts); + cpdma_ctlr_destroy(cpsw->dma); +clean_dt_ret: + cpsw_remove_dt(pdev); + pm_runtime_put_sync(&pdev->dev); +clean_runtime_disable_ret: pm_runtime_disable(&pdev->dev); - kfree(priv->slaves); -clean_ndev_ret: - kfree(priv->data.slave_data); - free_netdev(priv->ndev); return ret; } -static int cpsw_remove(struct platform_device *pdev) +static void cpsw_remove(struct platform_device *pdev) { - struct net_device *ndev = platform_get_drvdata(pdev); - struct cpsw_priv *priv = netdev_priv(ndev); - int i; + struct cpsw_common *cpsw = platform_get_drvdata(pdev); + int i, ret; - if (priv->data.dual_emac) - unregister_netdev(cpsw_get_slave_ndev(priv, 1)); - unregister_netdev(ndev); + ret = pm_runtime_resume_and_get(&pdev->dev); + if (ret < 0) { + /* Note, if this error path is taken, we're leaking some + * resources. + */ + dev_err(&pdev->dev, "Failed to resume device (%pe)\n", + ERR_PTR(ret)); + return; + } + + for (i = 0; i < cpsw->data.slaves; i++) + if (cpsw->slaves[i].ndev) + unregister_netdev(cpsw->slaves[i].ndev); - cpts_unregister(priv->cpts); - for (i = 0; i < priv->num_irqs; i++) - free_irq(priv->irqs_table[i], priv); - - cpsw_ale_destroy(priv->ale); - cpdma_chan_destroy(priv->txch); - cpdma_chan_destroy(priv->rxch); - cpdma_ctlr_destroy(priv->dma); - iounmap(priv->regs); - release_mem_region(priv->cpsw_res->start, - resource_size(priv->cpsw_res)); - iounmap(priv->wr_regs); - release_mem_region(priv->cpsw_wr_res->start, - resource_size(priv->cpsw_wr_res)); + cpts_release(cpsw->cpts); + cpdma_ctlr_destroy(cpsw->dma); + cpsw_remove_dt(pdev); + pm_runtime_put_sync(&pdev->dev); pm_runtime_disable(&pdev->dev); - clk_put(priv->clk); - kfree(priv->slaves); - kfree(priv->data.slave_data); - if (priv->data.dual_emac) - free_netdev(cpsw_get_slave_ndev(priv, 1)); - free_netdev(ndev); - return 0; } +#ifdef CONFIG_PM_SLEEP static int cpsw_suspend(struct device *dev) { - struct platform_device *pdev = to_platform_device(dev); - struct net_device *ndev = platform_get_drvdata(pdev); - struct cpsw_priv *priv = netdev_priv(ndev); + struct cpsw_common *cpsw = dev_get_drvdata(dev); + int i; - if (netif_running(ndev)) - cpsw_ndo_stop(ndev); - soft_reset("sliver 0", &priv->slaves[0].sliver->soft_reset); - soft_reset("sliver 1", &priv->slaves[1].sliver->soft_reset); - pm_runtime_put_sync(&pdev->dev); + rtnl_lock(); + + for (i = 0; i < cpsw->data.slaves; i++) + if (cpsw->slaves[i].ndev) + if (netif_running(cpsw->slaves[i].ndev)) + cpsw_ndo_stop(cpsw->slaves[i].ndev); + + rtnl_unlock(); /* Select sleep pin state */ - pinctrl_pm_select_sleep_state(&pdev->dev); + pinctrl_pm_select_sleep_state(dev); return 0; } static int cpsw_resume(struct device *dev) { - struct platform_device *pdev = to_platform_device(dev); - struct net_device *ndev = platform_get_drvdata(pdev); - - pm_runtime_get_sync(&pdev->dev); + struct cpsw_common *cpsw = dev_get_drvdata(dev); + int i; /* Select default pin state */ - pinctrl_pm_select_default_state(&pdev->dev); + pinctrl_pm_select_default_state(dev); + + /* shut up ASSERT_RTNL() warning in netif_set_real_num_tx/rx_queues */ + rtnl_lock(); + + for (i = 0; i < cpsw->data.slaves; i++) + if (cpsw->slaves[i].ndev) + if (netif_running(cpsw->slaves[i].ndev)) + cpsw_ndo_open(cpsw->slaves[i].ndev); + + rtnl_unlock(); - if (netif_running(ndev)) - cpsw_ndo_open(ndev); return 0; } +#endif -static const struct dev_pm_ops cpsw_pm_ops = { - .suspend = cpsw_suspend, - .resume = cpsw_resume, -}; - -static const struct of_device_id cpsw_of_mtable[] = { - { .compatible = "ti,cpsw", }, - { /* sentinel */ }, -}; -MODULE_DEVICE_TABLE(of, cpsw_of_mtable); +static SIMPLE_DEV_PM_OPS(cpsw_pm_ops, cpsw_suspend, cpsw_resume); static struct platform_driver cpsw_driver = { .driver = { .name = "cpsw", - .owner = THIS_MODULE, .pm = &cpsw_pm_ops, - .of_match_table = of_match_ptr(cpsw_of_mtable), + .of_match_table = cpsw_of_mtable, }, .probe = cpsw_probe, .remove = cpsw_remove, }; -static int __init cpsw_init(void) -{ - return platform_driver_register(&cpsw_driver); -} -late_initcall(cpsw_init); - -static void __exit cpsw_exit(void) -{ - platform_driver_unregister(&cpsw_driver); -} -module_exit(cpsw_exit); +module_platform_driver(cpsw_driver); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Cyril Chemparathy <cyril@ti.com>"); |