提交 87e067cd 编写于 作者: D David S. Miller

Merge branch 'arc_emac-next'

Beniamino Galvani says:

====================
arc_emac: promiscuous/multicast mode and netpoll support

These patches add support for promiscuous mode, multicast filtering
and netpoll to the ARC EMAC driver.

They were both tested on a Radxa Rock board which uses a ARC EMAC IP
core integrated in the Rockchip RK3188 SoC.
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
......@@ -13,6 +13,7 @@
* Vineet Gupta
*/
#include <linux/crc32.h>
#include <linux/etherdevice.h>
#include <linux/interrupt.h>
#include <linux/io.h>
......@@ -362,6 +363,15 @@ static irqreturn_t arc_emac_intr(int irq, void *dev_instance)
return IRQ_HANDLED;
}
#ifdef CONFIG_NET_POLL_CONTROLLER
static void arc_emac_poll_controller(struct net_device *dev)
{
disable_irq(dev->irq);
arc_emac_intr(dev->irq, dev);
enable_irq(dev->irq);
}
#endif
/**
* arc_emac_open - Open the network device.
* @ndev: Pointer to the network device.
......@@ -450,6 +460,41 @@ static int arc_emac_open(struct net_device *ndev)
return 0;
}
/**
* arc_emac_set_rx_mode - Change the receive filtering mode.
* @ndev: Pointer to the network device.
*
* This function enables/disables promiscuous or all-multicast mode
* and updates the multicast filtering list of the network device.
*/
static void arc_emac_set_rx_mode(struct net_device *ndev)
{
struct arc_emac_priv *priv = netdev_priv(ndev);
if (ndev->flags & IFF_PROMISC) {
arc_reg_or(priv, R_CTRL, PROM_MASK);
} else {
arc_reg_clr(priv, R_CTRL, PROM_MASK);
if (ndev->flags & IFF_ALLMULTI) {
arc_reg_set(priv, R_LAFL, ~0);
arc_reg_set(priv, R_LAFH, ~0);
} else {
struct netdev_hw_addr *ha;
unsigned int filter[2] = { 0, 0 };
int bit;
netdev_for_each_mc_addr(ha, ndev) {
bit = ether_crc_le(ETH_ALEN, ha->addr) >> 26;
filter[bit >> 5] |= 1 << (bit & 31);
}
arc_reg_set(priv, R_LAFL, filter[0]);
arc_reg_set(priv, R_LAFH, filter[1]);
}
}
}
/**
* arc_emac_stop - Close the network device.
* @ndev: Pointer to the network device.
......@@ -620,6 +665,10 @@ static const struct net_device_ops arc_emac_netdev_ops = {
.ndo_start_xmit = arc_emac_tx,
.ndo_set_mac_address = arc_emac_set_address,
.ndo_get_stats = arc_emac_stats,
.ndo_set_rx_mode = arc_emac_set_rx_mode,
#ifdef CONFIG_NET_POLL_CONTROLLER
.ndo_poll_controller = arc_emac_poll_controller,
#endif
};
static int arc_emac_probe(struct platform_device *pdev)
......
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