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| author |   Vitaly Wool <vwool@ru.mvista.com> | 2006-11-07 13:27:02 +0300 |
|---|---|---|
| committer |   Jeff Garzik <jeff@garzik.org> | 2006-12-02 00:12:03 -0500 |
| commit | f2d71c2d800e68f158a5949e38b23f5140948548 (patch) | |
| tree | edfb6149981f13fe5e90850bf656cf2a35d1077f /drivers/net/gianfar.c | |
| parent | [PATCH] wireless: clean-up some "check return code" warnings (diff) | |
| download | linux-dev-f2d71c2d800e68f158a5949e38b23f5140948548.tar.xz linux-dev-f2d71c2d800e68f158a5949e38b23f5140948548.zip | |
[PATCH] add netpoll support for gianfar: respin
The patch inlined below adds NET_POLL_CONTROLLER support for gianfar network driver, slightly modified wrt the comments from Andy Fleming.
drivers/net/gianfar.c | 33 +++++++++++++++++++++++++++++++++
1 file changed, 33 insertions(+)
Signed-off-by: Vitaly Wool <vwool@ru.mvista.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/net/gianfar.c')
| -rw-r--r-- | drivers/net/gianfar.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c index a06d8d1aaceb..6bf18c82083d 100644 --- a/drivers/net/gianfar.c +++ b/drivers/net/gianfar.c @@ -133,6 +133,9 @@ static void gfar_set_hash_for_addr(struct net_device *dev, u8 *addr); #ifdef CONFIG_GFAR_NAPI static int gfar_poll(struct net_device *dev, int *budget); #endif +#ifdef CONFIG_NET_POLL_CONTROLLER +static void gfar_netpoll(struct net_device *dev); +#endif int gfar_clean_rx_ring(struct net_device *dev, int rx_work_limit); static int gfar_process_frame(struct net_device *dev, struct sk_buff *skb, int length); static void gfar_vlan_rx_register(struct net_device *netdev, @@ -260,6 +263,9 @@ static int gfar_probe(struct platform_device *pdev) dev->poll = gfar_poll; dev->weight = GFAR_DEV_WEIGHT; #endif +#ifdef CONFIG_NET_POLL_CONTROLLER + dev->poll_controller = gfar_netpoll; +#endif dev->stop = gfar_close; dev->get_stats = gfar_get_stats; dev->change_mtu = gfar_change_mtu; @@ -1536,6 +1542,33 @@ static int gfar_poll(struct net_device *dev, int *budget) } #endif +#ifdef CONFIG_NET_POLL_CONTROLLER +/* + * Polling 'interrupt' - used by things like netconsole to send skbs + * without having to re-enable interrupts. It's not called while + * the interrupt routine is executing. + */ +static void gfar_netpoll(struct net_device *dev) +{ + struct gfar_private *priv = netdev_priv(dev); + + /* If the device has multiple interrupts, run tx/rx */ + if (priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_MULTI_INTR) { + disable_irq(priv->interruptTransmit); + disable_irq(priv->interruptReceive); + disable_irq(priv->interruptError); + gfar_interrupt(priv->interruptTransmit, dev); + enable_irq(priv->interruptError); + enable_irq(priv->interruptReceive); + enable_irq(priv->interruptTransmit); + } else { + disable_irq(priv->interruptTransmit); + gfar_interrupt(priv->interruptTransmit, dev); + enable_irq(priv->interruptTransmit); + } +} +#endif + /* The interrupt handler for devices with one interrupt */ static irqreturn_t gfar_interrupt(int irq, void *dev_id) { |