diff options
Diffstat (limited to 'drivers/net')
-rw-r--r-- | drivers/net/ethernet/freescale/gianfar.c | 155 | ||||
-rw-r--r-- | drivers/net/ethernet/freescale/gianfar.h | 12 | ||||
-rw-r--r-- | drivers/net/ethernet/freescale/gianfar_ethtool.c | 43 |
3 files changed, 186 insertions, 24 deletions
diff --git a/drivers/net/ethernet/freescale/gianfar.c b/drivers/net/ethernet/freescale/gianfar.c index 710715f..7f5389c 100644 --- a/drivers/net/ethernet/freescale/gianfar.c +++ b/drivers/net/ethernet/freescale/gianfar.c @@ -907,6 +907,9 @@ static int gfar_of_init(struct platform_device *ofdev, struct net_device **pdev) if (of_find_property(np, "fsl,magic-packet", NULL)) priv->device_flags |= FSL_GIANFAR_DEV_HAS_MAGIC_PACKET; + if (of_get_property(np, "fsl,wake-on-filer", NULL)) + priv->device_flags |= FSL_GIANFAR_DEV_HAS_WAKE_ON_FILER; + priv->phy_node = of_parse_phandle(np, "phy-handle", 0); /* In the case of a fixed PHY, the DT node associated @@ -1415,8 +1418,14 @@ static int gfar_probe(struct platform_device *ofdev) goto register_fail; } - device_set_wakeup_capable(&dev->dev, priv->device_flags & - FSL_GIANFAR_DEV_HAS_MAGIC_PACKET); + if (priv->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET) + priv->wol_supported |= GFAR_WOL_MAGIC; + + if ((priv->device_flags & FSL_GIANFAR_DEV_HAS_WAKE_ON_FILER) && + priv->rx_filer_enable) + priv->wol_supported |= GFAR_WOL_FILER_UCAST; + + device_set_wakeup_capable(&ofdev->dev, priv->wol_supported); /* fill out IRQ number and name fields */ for (i = 0; i < priv->num_grps; i++) { @@ -1479,15 +1488,122 @@ static int gfar_remove(struct platform_device *ofdev) #ifdef CONFIG_PM +static void __gfar_filer_disable(struct gfar_private *priv) +{ + struct gfar __iomem *regs = priv->gfargrp[0].regs; + u32 temp; + + temp = gfar_read(®s->rctrl); + temp &= ~(RCTRL_FILREN | RCTRL_PRSDEP_INIT); + gfar_write(®s->rctrl, temp); +} + +static void __gfar_filer_enable(struct gfar_private *priv) +{ + struct gfar __iomem *regs = priv->gfargrp[0].regs; + u32 temp; + + temp = gfar_read(®s->rctrl); + temp |= RCTRL_FILREN | RCTRL_PRSDEP_INIT; + gfar_write(®s->rctrl, temp); +} + +/* Filer rules implementing wol capabilities */ +static void gfar_filer_config_wol(struct gfar_private *priv) +{ + unsigned int i; + u32 rqfcr; + + __gfar_filer_disable(priv); + + /* clear the filer table, reject any packet by default */ + rqfcr = RQFCR_RJE | RQFCR_CMP_MATCH; + for (i = 0; i <= MAX_FILER_IDX; i++) + gfar_write_filer(priv, i, rqfcr, 0); + + i = 0; + if (priv->wol_opts & GFAR_WOL_FILER_UCAST) { + /* unicast packet, accept it */ + struct net_device *ndev = priv->ndev; + /* get the default rx queue index */ + u8 qindex = (u8)priv->gfargrp[0].rx_queue->qindex; + u32 dest_mac_addr = (ndev->dev_addr[0] << 16) | + (ndev->dev_addr[1] << 8) | + ndev->dev_addr[2]; + + rqfcr = (qindex << 10) | RQFCR_AND | + RQFCR_CMP_EXACT | RQFCR_PID_DAH; + + gfar_write_filer(priv, i++, rqfcr, dest_mac_addr); + + dest_mac_addr = (ndev->dev_addr[3] << 16) | + (ndev->dev_addr[4] << 8) | + ndev->dev_addr[5]; + rqfcr = (qindex << 10) | RQFCR_GPI | + RQFCR_CMP_EXACT | RQFCR_PID_DAL; + gfar_write_filer(priv, i++, rqfcr, dest_mac_addr); + } + + __gfar_filer_enable(priv); +} + +static void gfar_filer_restore_table(struct gfar_private *priv) +{ + u32 rqfcr, rqfpr; + unsigned int i; + + __gfar_filer_disable(priv); + + for (i = 0; i <= MAX_FILER_IDX; i++) { + rqfcr = priv->ftp_rqfcr[i]; + rqfpr = priv->ftp_rqfpr[i]; + gfar_write_filer(priv, i, rqfcr, rqfpr); + } + + __gfar_filer_enable(priv); +} + +/* gfar_start() for Rx only and with the FGPI filer interrupt enabled */ +static void gfar_start_wol_filer(struct gfar_private *priv) +{ + struct gfar __iomem *regs = priv->gfargrp[0].regs; + u32 tempval; + int i = 0; + + /* Enable Rx hw queues */ + gfar_write(®s->rqueue, priv->rqueue); + + /* Initialize DMACTRL to have WWR and WOP */ + tempval = gfar_read(®s->dmactrl); + tempval |= DMACTRL_INIT_SETTINGS; + gfar_write(®s->dmactrl, tempval); + + /* Make sure we aren't stopped */ + tempval = gfar_read(®s->dmactrl); + tempval &= ~DMACTRL_GRS; + gfar_write(®s->dmactrl, tempval); + + for (i = 0; i < priv->num_grps; i++) { + regs = priv->gfargrp[i].regs; + /* Clear RHLT, so that the DMA starts polling now */ + gfar_write(®s->rstat, priv->gfargrp[i].rstat); + /* enable the Filer General Purpose Interrupt */ + gfar_write(®s->imask, IMASK_FGPI); + } + + /* Enable Rx DMA */ + tempval = gfar_read(®s->maccfg1); + tempval |= MACCFG1_RX_EN; + gfar_write(®s->maccfg1, tempval); +} + static int gfar_suspend(struct device *dev) { struct gfar_private *priv = dev_get_drvdata(dev); struct net_device *ndev = priv->ndev; struct gfar __iomem *regs = priv->gfargrp[0].regs; u32 tempval; - int magic_packet = priv->wol_en && - (priv->device_flags & - FSL_GIANFAR_DEV_HAS_MAGIC_PACKET); + u16 wol = priv->wol_opts; if (!netif_running(ndev)) return 0; @@ -1499,7 +1615,7 @@ static int gfar_suspend(struct device *dev) gfar_halt(priv); - if (magic_packet) { + if (wol & GFAR_WOL_MAGIC) { /* Enable interrupt on Magic Packet */ gfar_write(®s->imask, IMASK_MAG); @@ -1513,6 +1629,10 @@ static int gfar_suspend(struct device *dev) tempval |= MACCFG1_RX_EN; gfar_write(®s->maccfg1, tempval); + } else if (wol & GFAR_WOL_FILER_UCAST) { + gfar_filer_config_wol(priv); + gfar_start_wol_filer(priv); + } else { phy_stop(priv->phydev); } @@ -1526,18 +1646,22 @@ static int gfar_resume(struct device *dev) struct net_device *ndev = priv->ndev; struct gfar __iomem *regs = priv->gfargrp[0].regs; u32 tempval; - int magic_packet = priv->wol_en && - (priv->device_flags & - FSL_GIANFAR_DEV_HAS_MAGIC_PACKET); + u16 wol = priv->wol_opts; if (!netif_running(ndev)) return 0; - if (magic_packet) { + if (wol & GFAR_WOL_MAGIC) { /* Disable Magic Packet mode */ tempval = gfar_read(®s->maccfg2); tempval &= ~MACCFG2_MPEN; gfar_write(®s->maccfg2, tempval); + + } else if (wol & GFAR_WOL_FILER_UCAST) { + /* need to stop rx only, tx is already down */ + gfar_halt(priv); + gfar_filer_restore_table(priv); + } else { phy_start(priv->phydev); } @@ -1998,6 +2122,8 @@ static int register_grp_irqs(struct gfar_priv_grp *grp) gfar_irq(grp, RX)->irq); goto rx_irq_fail; } + enable_irq_wake(gfar_irq(grp, RX)->irq); + } else { err = request_irq(gfar_irq(grp, TX)->irq, gfar_interrupt, 0, gfar_irq(grp, TX)->name, grp); @@ -2743,7 +2869,14 @@ irqreturn_t gfar_receive(int irq, void *grp_id) { struct gfar_priv_grp *grp = (struct gfar_priv_grp *)grp_id; unsigned long flags; - u32 imask; + u32 imask, ievent; + + ievent = gfar_read(&grp->regs->ievent); + + if (unlikely(ievent & IEVENT_FGPI)) { + gfar_write(&grp->regs->ievent, IEVENT_FGPI); + return IRQ_HANDLED; + } if (likely(napi_schedule_prep(&grp->napi_rx))) { spin_lock_irqsave(&grp->grplock, flags); diff --git a/drivers/net/ethernet/freescale/gianfar.h b/drivers/net/ethernet/freescale/gianfar.h index 8c19948..f266b20 100644 --- a/drivers/net/ethernet/freescale/gianfar.h +++ b/drivers/net/ethernet/freescale/gianfar.h @@ -340,6 +340,7 @@ extern const char gfar_driver_version[]; #define IEVENT_MAG 0x00000800 #define IEVENT_GRSC 0x00000100 #define IEVENT_RXF0 0x00000080 +#define IEVENT_FGPI 0x00000010 #define IEVENT_FIR 0x00000008 #define IEVENT_FIQ 0x00000004 #define IEVENT_DPE 0x00000002 @@ -372,6 +373,7 @@ extern const char gfar_driver_version[]; #define IMASK_MAG 0x00000800 #define IMASK_GRSC 0x00000100 #define IMASK_RXFEN0 0x00000080 +#define IMASK_FGPI 0x00000010 #define IMASK_FIR 0x00000008 #define IMASK_FIQ 0x00000004 #define IMASK_DPE 0x00000002 @@ -540,6 +542,9 @@ extern const char gfar_driver_version[]; #define GFAR_INT_NAME_MAX (IFNAMSIZ + 6) /* '_g#_xx' */ +#define GFAR_WOL_MAGIC 0x00000001 +#define GFAR_WOL_FILER_UCAST 0x00000002 + struct txbd8 { union { @@ -917,6 +922,7 @@ struct gfar { #define FSL_GIANFAR_DEV_HAS_BD_STASHING 0x00000200 #define FSL_GIANFAR_DEV_HAS_BUF_STASHING 0x00000400 #define FSL_GIANFAR_DEV_HAS_TIMER 0x00000800 +#define FSL_GIANFAR_DEV_HAS_WAKE_ON_FILER 0x00001000 #if (MAXGROUPS == 2) #define DEFAULT_MAPPING 0xAA @@ -1161,8 +1167,6 @@ struct gfar_private { extended_hash:1, bd_stash_en:1, rx_filer_enable:1, - /* Wake-on-LAN enabled */ - wol_en:1, /* Enable priorty based Tx scheduling in Hw */ prio_sched_en:1, /* Flow control flags */ @@ -1191,6 +1195,10 @@ struct gfar_private { u32 __iomem *hash_regs[16]; int hash_width; + /* wake-on-lan settings */ + u16 wol_opts; + u16 wol_supported; + /*Filer table*/ unsigned int ftp_rqfpr[MAX_FILER_IDX + 1]; unsigned int ftp_rqfcr[MAX_FILER_IDX + 1]; diff --git a/drivers/net/ethernet/freescale/gianfar_ethtool.c b/drivers/net/ethernet/freescale/gianfar_ethtool.c index 6bdc891..fb7f8d6 100644 --- a/drivers/net/ethernet/freescale/gianfar_ethtool.c +++ b/drivers/net/ethernet/freescale/gianfar_ethtool.c @@ -644,28 +644,49 @@ static void gfar_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) { struct gfar_private *priv = netdev_priv(dev); - if (priv->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; - } + wol->supported = 0; + wol->wolopts = 0; + + if (priv->wol_supported & GFAR_WOL_MAGIC) + wol->supported |= WAKE_MAGIC; + + if (priv->wol_supported & GFAR_WOL_FILER_UCAST) + wol->supported |= WAKE_UCAST; + + if (priv->wol_opts & GFAR_WOL_MAGIC) + wol->wolopts |= WAKE_MAGIC; + + if (priv->wol_opts & GFAR_WOL_FILER_UCAST) + wol->wolopts |= WAKE_UCAST; } static int gfar_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) { struct gfar_private *priv = netdev_priv(dev); + u16 wol_opts = 0; + int err; - if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET) && - wol->wolopts != 0) + if (!priv->wol_supported && wol->wolopts) return -EINVAL; - if (wol->wolopts & ~WAKE_MAGIC) + if (wol->wolopts & ~(WAKE_MAGIC | WAKE_UCAST)) return -EINVAL; - device_set_wakeup_enable(&dev->dev, wol->wolopts & WAKE_MAGIC); + if (wol->wolopts & WAKE_MAGIC) { + wol_opts |= GFAR_WOL_MAGIC; + } else { + if (wol->wolopts & WAKE_UCAST) + wol_opts |= GFAR_WOL_FILER_UCAST; + } + + wol_opts &= priv->wol_supported; + priv->wol_opts = 0; + + err = device_set_wakeup_enable(priv->dev, wol_opts); + if (err) + return err; - priv->wol_en = !!device_may_wakeup(&dev->dev); + priv->wol_opts = wol_opts; return 0; } |