diff options
| -rw-r--r-- | arch/powerpc/sysdev/fsl_soc.c | 3 | ||||
| -rw-r--r-- | drivers/net/gianfar.c | 122 | ||||
| -rw-r--r-- | drivers/net/gianfar.h | 12 | ||||
| -rw-r--r-- | drivers/net/gianfar_ethtool.c | 41 | ||||
| -rw-r--r-- | include/linux/fsl_devices.h | 1 |
5 files changed, 173 insertions, 6 deletions
diff --git a/arch/powerpc/sysdev/fsl_soc.c b/arch/powerpc/sysdev/fsl_soc.c index ef4cb0d67a7..214388e1180 100644 --- a/arch/powerpc/sysdev/fsl_soc.c +++ b/arch/powerpc/sysdev/fsl_soc.c @@ -352,6 +352,9 @@ static int __init gfar_of_init(void) else gfar_data.interface = PHY_INTERFACE_MODE_MII; + if (of_get_property(np, "fsl,magic-packet", NULL)) + gfar_data.device_flags |= FSL_GIANFAR_DEV_HAS_MAGIC_PACKET; + ph = of_get_property(np, "phy-handle", NULL); if (ph == NULL) { u32 *fixed_link; diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c index 25bdd0832df..36f229ff52f 100644 --- a/drivers/net/gianfar.c +++ b/drivers/net/gianfar.c @@ -143,6 +143,9 @@ static int gfar_process_frame(struct net_device *dev, struct sk_buff *skb, int l static void gfar_vlan_rx_register(struct net_device *netdev, struct vlan_group *grp); void gfar_halt(struct net_device *dev); +#ifdef CONFIG_PM +static void gfar_halt_nodisable(struct net_device *dev); +#endif void gfar_start(struct net_device *dev); static void gfar_clear_exact_match(struct net_device *dev); static void gfar_set_mac_for_addr(struct net_device *dev, int num, u8 *addr); @@ -216,6 +219,7 @@ static int gfar_probe(struct platform_device *pdev) spin_lock_init(&priv->txlock); spin_lock_init(&priv->rxlock); + spin_lock_init(&priv->bflock); platform_set_drvdata(pdev, dev); @@ -393,6 +397,103 @@ static int gfar_remove(struct platform_device *pdev) return 0; } +#ifdef CONFIG_PM +static int gfar_suspend(struct platform_device *pdev, pm_message_t state) +{ + struct net_device *dev = platform_get_drvdata(pdev); + struct gfar_private *priv = netdev_priv(dev); + unsigned long flags; + u32 tempval; + + int magic_packet = priv->wol_en && + (priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET); + + netif_device_detach(dev); + + if (netif_running(dev)) { + spin_lock_irqsave(&priv->txlock, flags); + spin_lock(&priv->rxlock); + + gfar_halt_nodisable(dev); + + /* Disable Tx, and Rx if wake-on-LAN is disabled. */ + tempval = gfar_read(&priv->regs->maccfg1); + + tempval &= ~MACCFG1_TX_EN; + + if (!magic_packet) + tempval &= ~MACCFG1_RX_EN; + + gfar_write(&priv->regs->maccfg1, tempval); + + spin_unlock(&priv->rxlock); + spin_unlock_irqrestore(&priv->txlock, flags); + +#ifdef CONFIG_GFAR_NAPI + napi_disable(&priv->napi); +#endif + + if (magic_packet) { + /* Enable interrupt on Magic Packet */ + gfar_write(&priv->regs->imask, IMASK_MAG); + + /* Enable Magic Packet mode */ + tempval = gfar_read(&priv->regs->maccfg2); + tempval |= MACCFG2_MPEN; + gfar_write(&priv->regs->maccfg2, tempval); + } else { + phy_stop(priv->phydev); + } + } + + return 0; +} + +static int gfar_resume(struct platform_device *pdev) +{ + struct net_device *dev = platform_get_drvdata(pdev); + struct gfar_private *priv = netdev_priv(dev); + unsigned long flags; + u32 tempval; + int magic_packet = priv->wol_en && + (priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET); + + if (!netif_running(dev)) { + netif_device_attach(dev); + return 0; + } + + if (!magic_packet && priv->phydev) + phy_start(priv->phydev); + + /* Disable Magic Packet mode, in case something + * else woke us up. + */ + + spin_lock_irqsave(&priv->txlock, flags); + spin_lock(&priv->rxlock); + + tempval = gfar_read(&priv->regs->maccfg2); + tempval &= ~MACCFG2_MPEN; + gfar_write(&priv->regs->maccfg2, tempval); + + gfar_start(dev); + + spin_unlock(&priv->rxlock); + spin_unlock_irqrestore(&priv->txlock, flags); + + netif_device_attach(dev); + +#ifdef CONFIG_GFAR_NAPI + napi_enable(&priv->napi); +#endif + + return 0; +} +#else +#define gfar_suspend NULL +#define gfar_resume NULL +#endif /* Reads the controller's registers to determine what interface * connects it to the PHY. @@ -549,8 +650,9 @@ static void init_registers(struct net_device *dev) } +#ifdef CONFIG_PM /* Halt the receive and transmit queues */ -void gfar_halt(struct net_device *dev) +static void gfar_halt_nodisable(struct net_device *dev) { struct gfar_private *priv = netdev_priv(dev); struct gfar __iomem *regs = priv->regs; @@ -573,6 +675,15 @@ void gfar_halt(struct net_device *dev) (IEVENT_GRSC | IEVENT_GTSC))) cpu_relax(); } +} +#endif + +/* Halt the receive and transmit queues */ +void gfar_halt(struct net_device *dev) +{ + struct gfar_private *priv = netdev_priv(dev); + struct gfar __iomem *regs = priv->regs; + u32 tempval; /* Disable Rx and Tx */ tempval = gfar_read(®s->maccfg1); @@ -1969,7 +2080,12 @@ static irqreturn_t gfar_error(int irq, void *dev_id) u32 events = gfar_read(&priv->regs->ievent); /* Clear IEVENT */ - gfar_write(&priv->regs->ievent, IEVENT_ERR_MASK); + gfar_write(&priv->regs->ievent, events & IEVENT_ERR_MASK); + + /* Magic Packet is not an error. */ + if ((priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET) && + (events & IEVENT_MAG)) + events &= ~IEVENT_MAG; /* Hmm... */ if (netif_msg_rx_err(priv) || netif_msg_tx_err(priv)) @@ -2042,6 +2158,8 @@ MODULE_ALIAS("platform:fsl-gianfar"); static struct platform_driver gfar_driver = { .probe = gfar_probe, .remove = gfar_remove, + .suspend = gfar_suspend, + .resume = gfar_resume, .driver = { .name = "fsl-gianfar", .owner = THIS_MODULE, diff --git a/drivers/net/gianfar.h b/drivers/net/gianfar.h index 27f37c81e52..5ee518a8782 100644 --- a/drivers/net/gianfar.h +++ b/drivers/net/gianfar.h @@ -168,6 +168,7 @@ extern const char gfar_driver_version[]; #define MACCFG2_GMII 0x00000200 #define MACCFG2_HUGEFRAME 0x00000020 #define MACCFG2_LENGTHCHECK 0x00000010 +#define MACCFG2_MPEN 0x00000008 #define ECNTRL_INIT_SETTINGS 0x00001000 #define ECNTRL_TBI_MODE 0x00000020 @@ -240,6 +241,7 @@ extern const char gfar_driver_version[]; #define IEVENT_CRL 0x00020000 #define IEVENT_XFUN 0x00010000 #define IEVENT_RXB0 0x00008000 +#define IEVENT_MAG 0x00000800 #define IEVENT_GRSC 0x00000100 #define IEVENT_RXF0 0x00000080 #define IEVENT_FIR 0x00000008 @@ -252,7 +254,8 @@ extern const char gfar_driver_version[]; #define IEVENT_ERR_MASK \ (IEVENT_RXC | IEVENT_BSY | IEVENT_EBERR | IEVENT_MSRO | \ IEVENT_BABT | IEVENT_TXC | IEVENT_TXE | IEVENT_LC \ - | IEVENT_CRL | IEVENT_XFUN | IEVENT_DPE | IEVENT_PERR) + | IEVENT_CRL | IEVENT_XFUN | IEVENT_DPE | IEVENT_PERR \ + | IEVENT_MAG) #define IMASK_INIT_CLEAR 0x00000000 #define IMASK_BABR 0x80000000 @@ -270,6 +273,7 @@ extern const char gfar_driver_version[]; #define IMASK_CRL 0x00020000 #define IMASK_XFUN 0x00010000 #define IMASK_RXB0 0x00008000 +#define IMASK_MAG 0x00000800 #define IMASK_GTSC 0x00000100 #define IMASK_RXFEN0 0x00000080 #define IMASK_FIR 0x00000008 @@ -737,10 +741,14 @@ struct gfar_private { unsigned int fifo_starve; unsigned int fifo_starve_off; + /* Bitfield update lock */ + spinlock_t bflock; + unsigned char vlan_enable:1, rx_csum_enable:1, extended_hash:1, - bd_stash_en:1; + bd_stash_en:1, + wol_en:1; /* Wake-on-LAN enabled */ unsigned short padding; unsigned int interruptTransmit; diff --git a/drivers/net/gianfar_ethtool.c b/drivers/net/gianfar_ethtool.c index 6007147cc1e..fb7d3ccc0fd 100644 --- a/drivers/net/gianfar_ethtool.c +++ b/drivers/net/gianfar_ethtool.c @@ -479,14 +479,13 @@ static int gfar_sringparam(struct net_device *dev, struct ethtool_ringparam *rva static int gfar_set_rx_csum(struct net_device *dev, uint32_t data) { struct gfar_private *priv = netdev_priv(dev); + unsigned long flags; int err = 0; if (!(priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_CSUM)) return -EOPNOTSUPP; if (dev->flags & IFF_UP) { - unsigned long flags; - /* Halt TX and RX, and process the frames which * have already been received */ spin_lock_irqsave(&priv->txlock, flags); @@ -502,7 +501,9 @@ static int gfar_set_rx_csum(struct net_device *dev, uint32_t data) stop_gfar(dev); } + spin_lock_irqsave(&priv->bflock, flags); priv->rx_csum_enable = data; + spin_unlock_irqrestore(&priv->bflock, flags); if (dev->flags & IFF_UP) err = startup_gfar(dev); @@ -564,6 +565,38 @@ static void gfar_set_msglevel(struct net_device *dev, uint32_t data) priv->msg_enable = data; } +#ifdef CONFIG_PM +static void gfar_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) +{ + struct gfar_private *priv = netdev_priv(dev); + + if (priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET) { + wol->supported = WAKE_MAGIC; + wol->wolopts = priv->wol_en ? WAKE_MAGIC : 0; + } else { + wol->supported = wol->wolopts = 0; + } +} + +static int gfar_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) +{ + struct gfar_private *priv = netdev_priv(dev); + unsigned long flags; + + if (!(priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET) && + wol->wolopts != 0) + return -EINVAL; + + if (wol->wolopts & ~WAKE_MAGIC) + return -EINVAL; + + spin_lock_irqsave(&priv->bflock, flags); + priv->wol_en = wol->wolopts & WAKE_MAGIC ? 1 : 0; + spin_unlock_irqrestore(&priv->bflock, flags); + + return 0; +} +#endif const struct ethtool_ops gfar_ethtool_ops = { .get_settings = gfar_gsettings, @@ -585,4 +618,8 @@ const struct ethtool_ops gfar_ethtool_ops = { .set_tx_csum = gfar_set_tx_csum, .get_msglevel = gfar_get_msglevel, .set_msglevel = gfar_set_msglevel, +#ifdef CONFIG_PM + .get_wol = gfar_get_wol, + .set_wol = gfar_set_wol, +#endif }; diff --git a/include/linux/fsl_devices.h b/include/linux/fsl_devices.h index 0472877d7ea..4e625e0094c 100644 --- a/include/linux/fsl_devices.h +++ b/include/linux/fsl_devices.h @@ -69,6 +69,7 @@ struct gianfar_mdio_data { #define FSL_GIANFAR_DEV_HAS_VLAN 0x00000020 #define FSL_GIANFAR_DEV_HAS_EXTENDED_HASH 0x00000040 #define FSL_GIANFAR_DEV_HAS_PADDING 0x00000080 +#define FSL_GIANFAR_DEV_HAS_MAGIC_PACKET 0x00000100 /* Flags in gianfar_platform_data */ #define FSL_GIANFAR_BRD_HAS_PHY_INTR 0x00000001 /* set or use a timer */ |