From: Dai Haruki Date: Tue, 16 Dec 2008 23:30:20 +0000 (-0800) Subject: gianfar: Fix eTSEC configuration procedure X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=12dea57be552a291e93827baeffbb91e33f587a6;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git gianfar: Fix eTSEC configuration procedure Fix some bugs in the ethtool configuration functions: * gfar_clean_rx_ring should not be called with interrupts disabled. * Update last transmission time to avoid tx timeout. * Delete redundant NETIF_F_IP_CSUM check in gfar_start_xmit * Use netif_tx_lock_bh when reconfiguring the tx csum Signed-off-by: Dai Haruki Signed-off-by: Andy Fleming Signed-off-by: David S. Miller --- diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c index 5100f75238a..19fdf93e0ec 100644 --- a/drivers/net/gianfar.c +++ b/drivers/net/gianfar.c @@ -892,6 +892,8 @@ void gfar_start(struct net_device *dev) /* Unmask the interrupts we look for */ gfar_write(®s->imask, IMASK_DEFAULT); + + dev->trans_start = jiffies; } /* Bring the controller up and running */ @@ -1233,8 +1235,7 @@ static int gfar_start_xmit(struct sk_buff *skb, struct net_device *dev) status = txbdp->status & TXBD_WRAP; /* Set up checksumming */ - if (likely((dev->features & NETIF_F_IP_CSUM) - && (CHECKSUM_PARTIAL == skb->ip_summed))) { + if (CHECKSUM_PARTIAL == skb->ip_summed) { fcb = gfar_add_fcb(skb, txbdp); status |= TXBD_TOE; gfar_tx_checksum(skb, fcb); diff --git a/drivers/net/gianfar_ethtool.c b/drivers/net/gianfar_ethtool.c index c111c532f7b..3021057d54a 100644 --- a/drivers/net/gianfar_ethtool.c +++ b/drivers/net/gianfar_ethtool.c @@ -462,11 +462,12 @@ static int gfar_sringparam(struct net_device *dev, struct ethtool_ringparam *rva spin_lock(&priv->rxlock); gfar_halt(dev); - gfar_clean_rx_ring(dev, priv->rx_ring_size); spin_unlock(&priv->rxlock); spin_unlock_irqrestore(&priv->txlock, flags); + gfar_clean_rx_ring(dev, priv->rx_ring_size); + /* Now we take down the rings to rebuild them */ stop_gfar(dev); } @@ -476,9 +477,10 @@ static int gfar_sringparam(struct net_device *dev, struct ethtool_ringparam *rva priv->tx_ring_size = rvals->tx_pending; /* Rebuild the rings with the new size */ - if (dev->flags & IFF_UP) + if (dev->flags & IFF_UP) { err = startup_gfar(dev); - + netif_wake_queue(dev); + } return err; } @@ -498,11 +500,12 @@ static int gfar_set_rx_csum(struct net_device *dev, uint32_t data) spin_lock(&priv->rxlock); gfar_halt(dev); - gfar_clean_rx_ring(dev, priv->rx_ring_size); spin_unlock(&priv->rxlock); spin_unlock_irqrestore(&priv->txlock, flags); + gfar_clean_rx_ring(dev, priv->rx_ring_size); + /* Now we take down the rings to rebuild them */ stop_gfar(dev); } @@ -511,9 +514,10 @@ static int gfar_set_rx_csum(struct net_device *dev, uint32_t data) priv->rx_csum_enable = data; spin_unlock_irqrestore(&priv->bflock, flags); - if (dev->flags & IFF_UP) + if (dev->flags & IFF_UP) { err = startup_gfar(dev); - + netif_wake_queue(dev); + } return err; } @@ -529,22 +533,19 @@ static uint32_t gfar_get_rx_csum(struct net_device *dev) static int gfar_set_tx_csum(struct net_device *dev, uint32_t data) { - unsigned long flags; struct gfar_private *priv = netdev_priv(dev); if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_CSUM)) return -EOPNOTSUPP; - spin_lock_irqsave(&priv->txlock, flags); - gfar_halt(dev); + netif_tx_lock_bh(dev); if (data) dev->features |= NETIF_F_IP_CSUM; else dev->features &= ~NETIF_F_IP_CSUM; - gfar_start(dev); - spin_unlock_irqrestore(&priv->txlock, flags); + netif_tx_unlock_bh(dev); return 0; }