diff options
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/net/ethernet/freescale/fs_enet/Kconfig | 2 | ||||
-rw-r--r-- | drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c | 215 | ||||
-rw-r--r-- | drivers/net/ethernet/freescale/fs_enet/fs_enet.h | 12 | ||||
-rw-r--r-- | drivers/net/ethernet/freescale/fs_enet/mac-fcc.c | 11 | ||||
-rw-r--r-- | drivers/net/ethernet/freescale/fs_enet/mac-fec.c | 9 | ||||
-rw-r--r-- | drivers/net/ethernet/freescale/fs_enet/mac-scc.c | 5 |
6 files changed, 132 insertions, 122 deletions
diff --git a/drivers/net/ethernet/freescale/fs_enet/Kconfig b/drivers/net/ethernet/freescale/fs_enet/Kconfig index 7f20840fde07..57013bf14d7c 100644 --- a/drivers/net/ethernet/freescale/fs_enet/Kconfig +++ b/drivers/net/ethernet/freescale/fs_enet/Kconfig @@ -3,7 +3,7 @@ config FS_ENET tristate "Freescale Ethernet Driver" depends on NET_VENDOR_FREESCALE && (CPM1 || CPM2 || PPC_MPC512x) select MII - select PHYLIB + select PHYLINK config FS_ENET_MPC5121_FEC def_bool y if (FS_ENET && PPC_MPC512x) diff --git a/drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c b/drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c index ec43b71c0eba..d300b01859a1 100644 --- a/drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c +++ b/drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c @@ -31,11 +31,13 @@ #include <linux/fs.h> #include <linux/platform_device.h> #include <linux/phy.h> +#include <linux/phylink.h> #include <linux/property.h> #include <linux/of.h> #include <linux/of_mdio.h> #include <linux/of_net.h> #include <linux/pgtable.h> +#include <linux/rtnetlink.h> #include <linux/vmalloc.h> #include <asm/irq.h> @@ -68,6 +70,13 @@ static void fs_set_multicast_list(struct net_device *dev) (*fep->ops->set_multicast_list)(dev); } +static int fs_eth_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) +{ + struct fs_enet_private *fep = netdev_priv(dev); + + return phylink_mii_ioctl(fep->phylink, ifr, cmd); +} + static void skb_align(struct sk_buff *skb, int align) { int off = ((unsigned long)skb->data) & (align - 1); @@ -581,15 +590,21 @@ static void fs_timeout_work(struct work_struct *work) dev->stats.tx_errors++; - spin_lock_irqsave(&fep->lock, flags); + /* In the event a timeout was detected, but the netdev is brought down + * shortly after, it no longer makes sense to try to recover from the + * timeout. netif_running() will return false when called from the + * .ndo_close() callback. Calling the following recovery code while + * called from .ndo_close() could deadlock on rtnl. + */ + if (!netif_running(dev)) + return; - if (dev->flags & IFF_UP) { - phy_stop(dev->phydev); - (*fep->ops->stop)(dev); - (*fep->ops->restart)(dev); - } + rtnl_lock(); + phylink_stop(fep->phylink); + phylink_start(fep->phylink); + rtnl_unlock(); - phy_start(dev->phydev); + spin_lock_irqsave(&fep->lock, flags); wake = fep->tx_free >= MAX_SKB_FRAGS && !(CBDR_SC(fep->cur_tx) & BD_ENET_TX_READY); spin_unlock_irqrestore(&fep->lock, flags); @@ -605,68 +620,37 @@ static void fs_timeout(struct net_device *dev, unsigned int txqueue) schedule_work(&fep->timeout_work); } -/* generic link-change handler - should be sufficient for most cases */ -static void fs_adjust_link(struct net_device *dev) +static void fs_mac_link_up(struct phylink_config *config, + struct phy_device *phy, + unsigned int mode, phy_interface_t interface, + int speed, int duplex, + bool tx_pause, bool rx_pause) { - struct fs_enet_private *fep = netdev_priv(dev); - struct phy_device *phydev = dev->phydev; + struct net_device *ndev = to_net_dev(config->dev); + struct fs_enet_private *fep = netdev_priv(ndev); unsigned long flags; - int new_state = 0; - - if (phydev->link) { - /* adjust to duplex mode */ - if (phydev->duplex != fep->oldduplex) { - new_state = 1; - fep->oldduplex = phydev->duplex; - } - - if (phydev->speed != fep->oldspeed) { - new_state = 1; - fep->oldspeed = phydev->speed; - } - - if (!fep->oldlink) { - new_state = 1; - fep->oldlink = 1; - } - - if (new_state) { - spin_lock_irqsave(&fep->lock, flags); - fep->ops->restart(dev); - spin_unlock_irqrestore(&fep->lock, flags); - } - } else if (fep->oldlink) { - new_state = 1; - fep->oldlink = 0; - fep->oldspeed = 0; - fep->oldduplex = -1; - } - if (new_state && netif_msg_link(fep)) - phy_print_status(phydev); + spin_lock_irqsave(&fep->lock, flags); + fep->ops->restart(ndev, interface, speed, duplex); + spin_unlock_irqrestore(&fep->lock, flags); } -static int fs_init_phy(struct net_device *dev) +static void fs_mac_link_down(struct phylink_config *config, + unsigned int mode, phy_interface_t interface) { - struct fs_enet_private *fep = netdev_priv(dev); - struct phy_device *phydev; - phy_interface_t iface; - - fep->oldlink = 0; - fep->oldspeed = 0; - fep->oldduplex = -1; - - iface = fep->fpi->use_rmii ? - PHY_INTERFACE_MODE_RMII : PHY_INTERFACE_MODE_MII; + struct net_device *ndev = to_net_dev(config->dev); + struct fs_enet_private *fep = netdev_priv(ndev); + unsigned long flags; - phydev = of_phy_connect(dev, fep->fpi->phy_node, &fs_adjust_link, 0, - iface); - if (!phydev) { - dev_err(&dev->dev, "Could not attach to PHY\n"); - return -ENODEV; - } + spin_lock_irqsave(&fep->lock, flags); + fep->ops->stop(ndev); + spin_unlock_irqrestore(&fep->lock, flags); +} - return 0; +static void fs_mac_config(struct phylink_config *config, unsigned int mode, + const struct phylink_link_state *state) +{ + /* Nothing to do */ } static int fs_enet_open(struct net_device *dev) @@ -691,13 +675,13 @@ static int fs_enet_open(struct net_device *dev) return -EINVAL; } - err = fs_init_phy(dev); + err = phylink_of_phy_connect(fep->phylink, fep->dev->of_node, 0); if (err) { free_irq(fep->interrupt, dev); napi_disable(&fep->napi); return err; } - phy_start(dev->phydev); + phylink_start(fep->phylink); netif_start_queue(dev); @@ -710,19 +694,18 @@ static int fs_enet_close(struct net_device *dev) unsigned long flags; netif_stop_queue(dev); - netif_carrier_off(dev); napi_disable(&fep->napi); - cancel_work_sync(&fep->timeout_work); - phy_stop(dev->phydev); + cancel_work(&fep->timeout_work); + phylink_stop(fep->phylink); spin_lock_irqsave(&fep->lock, flags); spin_lock(&fep->tx_lock); (*fep->ops->stop)(dev); spin_unlock(&fep->tx_lock); spin_unlock_irqrestore(&fep->lock, flags); + phylink_disconnect_phy(fep->phylink); /* release any irqs */ - phy_disconnect(dev->phydev); free_irq(fep->interrupt, dev); return 0; @@ -810,6 +793,22 @@ static int fs_set_tunable(struct net_device *dev, return ret; } +static int fs_ethtool_set_link_ksettings(struct net_device *dev, + const struct ethtool_link_ksettings *cmd) +{ + struct fs_enet_private *fep = netdev_priv(dev); + + return phylink_ethtool_ksettings_set(fep->phylink, cmd); +} + +static int fs_ethtool_get_link_ksettings(struct net_device *dev, + struct ethtool_link_ksettings *cmd) +{ + struct fs_enet_private *fep = netdev_priv(dev); + + return phylink_ethtool_ksettings_get(fep->phylink, cmd); +} + static const struct ethtool_ops fs_ethtool_ops = { .get_drvinfo = fs_get_drvinfo, .get_regs_len = fs_get_regs_len, @@ -819,8 +818,8 @@ static const struct ethtool_ops fs_ethtool_ops = { .set_msglevel = fs_set_msglevel, .get_regs = fs_get_regs, .get_ts_info = ethtool_op_get_ts_info, - .get_link_ksettings = phy_ethtool_get_link_ksettings, - .set_link_ksettings = phy_ethtool_set_link_ksettings, + .get_link_ksettings = fs_ethtool_get_link_ksettings, + .set_link_ksettings = fs_ethtool_set_link_ksettings, .get_tunable = fs_get_tunable, .set_tunable = fs_set_tunable, }; @@ -837,7 +836,7 @@ static const struct net_device_ops fs_enet_netdev_ops = { .ndo_start_xmit = fs_enet_start_xmit, .ndo_tx_timeout = fs_timeout, .ndo_set_rx_mode = fs_set_multicast_list, - .ndo_eth_ioctl = phy_do_ioctl_running, + .ndo_eth_ioctl = fs_eth_ioctl, .ndo_validate_addr = eth_validate_addr, .ndo_set_mac_address = eth_mac_addr, #ifdef CONFIG_NET_POLL_CONTROLLER @@ -845,14 +844,21 @@ static const struct net_device_ops fs_enet_netdev_ops = { #endif }; +static const struct phylink_mac_ops fs_enet_phylink_mac_ops = { + .mac_config = fs_mac_config, + .mac_link_down = fs_mac_link_down, + .mac_link_up = fs_mac_link_up, +}; + static int fs_enet_probe(struct platform_device *ofdev) { - int err, privsize, len, ret = -ENODEV; - const char *phy_connection_type; + int privsize, len, ret = -ENODEV; struct fs_platform_info *fpi; struct fs_enet_private *fep; + phy_interface_t phy_mode; const struct fs_ops *ops; struct net_device *ndev; + struct phylink *phylink; const u32 *data; struct clk *clk; @@ -872,29 +878,18 @@ static int fs_enet_probe(struct platform_device *ofdev) fpi->cp_command = *data; } + ret = of_get_phy_mode(ofdev->dev.of_node, &phy_mode); + if (ret) { + /* For compatibility, if the mode isn't specified in DT, + * assume MII + */ + phy_mode = PHY_INTERFACE_MODE_MII; + } + fpi->rx_ring = RX_RING_SIZE; fpi->tx_ring = TX_RING_SIZE; fpi->rx_copybreak = 240; fpi->napi_weight = 17; - fpi->phy_node = of_parse_phandle(ofdev->dev.of_node, "phy-handle", 0); - if (!fpi->phy_node && of_phy_is_fixed_link(ofdev->dev.of_node)) { - err = of_phy_register_fixed_link(ofdev->dev.of_node); - if (err) - goto out_free_fpi; - - /* In the case of a fixed PHY, the DT node associated - * to the PHY is the Ethernet MAC DT node. - */ - fpi->phy_node = of_node_get(ofdev->dev.of_node); - } - - if (of_device_is_compatible(ofdev->dev.of_node, "fsl,mpc5125-fec")) { - phy_connection_type = of_get_property(ofdev->dev.of_node, - "phy-connection-type", - NULL); - if (phy_connection_type && !strcmp("rmii", phy_connection_type)) - fpi->use_rmii = 1; - } /* make clock lookup non-fatal (the driver is shared among platforms), * but require enable to succeed when a clock was specified/found, @@ -902,7 +897,7 @@ static int fs_enet_probe(struct platform_device *ofdev) */ clk = devm_clk_get_enabled(&ofdev->dev, "per"); if (IS_ERR(clk)) - goto out_deregister_fixed_link; + goto out_free_fpi; privsize = sizeof(*fep) + sizeof(struct sk_buff **) * @@ -912,7 +907,7 @@ static int fs_enet_probe(struct platform_device *ofdev) ndev = alloc_etherdev(privsize); if (!ndev) { ret = -ENOMEM; - goto out_deregister_fixed_link; + goto out_free_fpi; } SET_NETDEV_DEV(ndev, &ofdev->dev); @@ -924,9 +919,29 @@ static int fs_enet_probe(struct platform_device *ofdev) fep->fpi = fpi; fep->ops = ops; + fep->phylink_config.dev = &ndev->dev; + fep->phylink_config.type = PHYLINK_NETDEV; + fep->phylink_config.mac_capabilities = MAC_10 | MAC_100; + + __set_bit(PHY_INTERFACE_MODE_MII, + fep->phylink_config.supported_interfaces); + + if (of_device_is_compatible(ofdev->dev.of_node, "fsl,mpc5125-fec")) + __set_bit(PHY_INTERFACE_MODE_RMII, + fep->phylink_config.supported_interfaces); + + phylink = phylink_create(&fep->phylink_config, dev_fwnode(fep->dev), + phy_mode, &fs_enet_phylink_mac_ops); + if (IS_ERR(phylink)) { + ret = PTR_ERR(phylink); + goto out_free_dev; + } + + fep->phylink = phylink; + ret = fep->ops->setup_data(ndev); if (ret) - goto out_free_dev; + goto out_phylink; fep->rx_skbuff = (struct sk_buff **)&fep[1]; fep->tx_skbuff = fep->rx_skbuff + fpi->rx_ring; @@ -956,8 +971,6 @@ static int fs_enet_probe(struct platform_device *ofdev) ndev->ethtool_ops = &fs_ethtool_ops; - netif_carrier_off(ndev); - ndev->features |= NETIF_F_SG; ret = register_netdev(ndev); @@ -972,12 +985,10 @@ out_free_bd: fep->ops->free_bd(ndev); out_cleanup_data: fep->ops->cleanup_data(ndev); +out_phylink: + phylink_destroy(fep->phylink); out_free_dev: free_netdev(ndev); -out_deregister_fixed_link: - of_node_put(fpi->phy_node); - if (of_phy_is_fixed_link(ofdev->dev.of_node)) - of_phy_deregister_fixed_link(ofdev->dev.of_node); out_free_fpi: kfree(fpi); return ret; @@ -993,9 +1004,7 @@ static void fs_enet_remove(struct platform_device *ofdev) fep->ops->free_bd(ndev); fep->ops->cleanup_data(ndev); dev_set_drvdata(fep->dev, NULL); - of_node_put(fep->fpi->phy_node); - if (of_phy_is_fixed_link(ofdev->dev.of_node)) - of_phy_deregister_fixed_link(ofdev->dev.of_node); + phylink_destroy(fep->phylink); free_netdev(ndev); } diff --git a/drivers/net/ethernet/freescale/fs_enet/fs_enet.h b/drivers/net/ethernet/freescale/fs_enet/fs_enet.h index 6ebb1b4404c7..36e4fcc29e36 100644 --- a/drivers/net/ethernet/freescale/fs_enet/fs_enet.h +++ b/drivers/net/ethernet/freescale/fs_enet/fs_enet.h @@ -7,6 +7,7 @@ #include <linux/types.h> #include <linux/list.h> #include <linux/phy.h> +#include <linux/phylink.h> #include <linux/dma-mapping.h> #ifdef CONFIG_CPM1 @@ -76,7 +77,8 @@ struct fs_ops { void (*free_bd)(struct net_device *dev); void (*cleanup_data)(struct net_device *dev); void (*set_multicast_list)(struct net_device *dev); - void (*restart)(struct net_device *dev); + void (*restart)(struct net_device *dev, phy_interface_t interface, + int speed, int duplex); void (*stop)(struct net_device *dev); void (*napi_clear_event)(struct net_device *dev); void (*napi_enable)(struct net_device *dev); @@ -112,13 +114,9 @@ struct fs_platform_info { u32 dpram_offset; - struct device_node *phy_node; - int rx_ring, tx_ring; /* number of buffers on rx */ int rx_copybreak; /* limit we copy small frames */ int napi_weight; /* NAPI weight */ - - int use_rmii; /* use RMII mode */ }; struct fs_enet_private { @@ -143,10 +141,10 @@ struct fs_enet_private { cbd_t __iomem *cur_tx; int tx_free; u32 msg_enable; + struct phylink *phylink; + struct phylink_config phylink_config; int interrupt; - int oldduplex, oldspeed, oldlink; /* current settings */ - /* event masks */ u32 ev_napi; /* mask of NAPI events */ u32 ev; /* event mask */ diff --git a/drivers/net/ethernet/freescale/fs_enet/mac-fcc.c b/drivers/net/ethernet/freescale/fs_enet/mac-fcc.c index 666a54d6e667..be63293511d9 100644 --- a/drivers/net/ethernet/freescale/fs_enet/mac-fcc.c +++ b/drivers/net/ethernet/freescale/fs_enet/mac-fcc.c @@ -235,7 +235,8 @@ static void set_multicast_list(struct net_device *dev) set_promiscuous_mode(dev); } -static void restart(struct net_device *dev) +static void restart(struct net_device *dev, phy_interface_t interface, + int speed, int duplex) { struct fs_enet_private *fep = netdev_priv(dev); const struct fs_platform_info *fpi = fep->fpi; @@ -359,8 +360,8 @@ static void restart(struct net_device *dev) fs_init_bds(dev); /* adjust to speed (for RMII mode) */ - if (fpi->use_rmii) { - if (dev->phydev->speed == SPEED_100) + if (interface == PHY_INTERFACE_MODE_RMII) { + if (speed == SPEED_100) C8(fcccp, fcc_gfemr, 0x20); else S8(fcccp, fcc_gfemr, 0x20); @@ -382,11 +383,11 @@ static void restart(struct net_device *dev) W32(fccp, fcc_fpsmr, FCC_PSMR_ENCRC); - if (fpi->use_rmii) + if (interface == PHY_INTERFACE_MODE_RMII) S32(fccp, fcc_fpsmr, FCC_PSMR_RMII); /* adjust to duplex mode */ - if (dev->phydev->duplex == DUPLEX_FULL) + if (duplex == DUPLEX_FULL) S32(fccp, fcc_fpsmr, FCC_PSMR_FDE | FCC_PSMR_LPB); else C32(fccp, fcc_fpsmr, FCC_PSMR_FDE | FCC_PSMR_LPB); diff --git a/drivers/net/ethernet/freescale/fs_enet/mac-fec.c b/drivers/net/ethernet/freescale/fs_enet/mac-fec.c index c1b7877178b9..f2ecd20027cf 100644 --- a/drivers/net/ethernet/freescale/fs_enet/mac-fec.c +++ b/drivers/net/ethernet/freescale/fs_enet/mac-fec.c @@ -220,7 +220,8 @@ static void set_multicast_list(struct net_device *dev) set_promiscuous_mode(dev); } -static void restart(struct net_device *dev) +static void restart(struct net_device *dev, phy_interface_t interface, + int speed, int duplex) { struct fs_enet_private *fep = netdev_priv(dev); struct fec __iomem *fecp = fep->fec.fecp; @@ -302,13 +303,13 @@ static void restart(struct net_device *dev) * Only set MII/RMII mode - do not touch maximum frame length * configured before. */ - FS(fecp, r_cntrl, fpi->use_rmii ? - FEC_RCNTRL_RMII_MODE : FEC_RCNTRL_MII_MODE); + FS(fecp, r_cntrl, interface == PHY_INTERFACE_MODE_RMII ? + FEC_RCNTRL_RMII_MODE : FEC_RCNTRL_MII_MODE); #endif /* * adjust to duplex mode */ - if (dev->phydev->duplex == DUPLEX_FULL) { + if (duplex == DUPLEX_FULL) { FC(fecp, r_cntrl, FEC_RCNTRL_DRT); FS(fecp, x_cntrl, FEC_TCNTRL_FDEN); /* FD enable */ } else { diff --git a/drivers/net/ethernet/freescale/fs_enet/mac-scc.c b/drivers/net/ethernet/freescale/fs_enet/mac-scc.c index d061092ced6c..6c97191649de 100644 --- a/drivers/net/ethernet/freescale/fs_enet/mac-scc.c +++ b/drivers/net/ethernet/freescale/fs_enet/mac-scc.c @@ -226,7 +226,8 @@ static void set_multicast_list(struct net_device *dev) * change. This only happens when switching between half and full * duplex. */ -static void restart(struct net_device *dev) +static void restart(struct net_device *dev, phy_interface_t interface, + int speed, int duplex) { struct fs_enet_private *fep = netdev_priv(dev); scc_t __iomem *sccp = fep->scc.sccp; @@ -337,7 +338,7 @@ static void restart(struct net_device *dev) W16(sccp, scc_psmr, SCC_PSMR_ENCRC | SCC_PSMR_NIB22); /* Set full duplex mode if needed */ - if (dev->phydev->duplex == DUPLEX_FULL) + if (duplex == DUPLEX_FULL) S16(sccp, scc_psmr, SCC_PSMR_LPB | SCC_PSMR_FDE); /* Restore multicast and promiscuous settings */ |