/*
* ADM5120 built-in ethernet switch driver
*
- * Copyright (C) 2007,2008 Gabor Juhos <juhosg at openwrt.org>
+ * Copyright (C) 2007-2008 Gabor Juhos <juhosg@openwrt.org>
*
* This code was based on a driver for Linux 2.6.xx by Jeroen Vreeken.
* Copyright Jeroen Vreeken (pe1rxq@amsat.org), 2005
#include <linux/ioport.h>
#include <linux/spinlock.h>
#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <linux/irq.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/skbuff.h>
-#include <linux/io.h>
-#include <linux/irq.h>
-
#include <asm/mipsregs.h>
-#include <adm5120_info.h>
-#include <adm5120_defs.h>
-#include <adm5120_irq.h>
-#include <adm5120_switch.h>
+#include <asm/mach-adm5120/adm5120_info.h>
+#include <asm/mach-adm5120/adm5120_defs.h>
+#include <asm/mach-adm5120/adm5120_switch.h>
#include "adm5120sw.h"
/* ------------------------------------------------------------------------ */
struct adm5120_if_priv {
+ struct net_device *dev;
+
unsigned int vlan_no;
unsigned int port_mask;
+
+#ifdef CONFIG_ADM5120_SWITCH_NAPI
+ struct napi_struct napi;
+#endif
};
struct dma_desc {
SW_DBG("rlda: %08X\n", t);
}
-
/* ------------------------------------------------------------------------ */
static inline void adm5120_rx_dma_update(struct dma_desc *desc,
}
#ifdef CONFIG_ADM5120_SWITCH_NAPI
-static int adm5120_if_poll(struct net_device *dev, int *budget)
+static int adm5120_if_poll(struct napi_struct *napi, int limit)
{
- int limit = min(dev->quota, *budget);
+ struct adm5120_if_priv *priv = container_of(napi,
+ struct adm5120_if_priv, napi);
+ struct net_device *dev = priv->dev;
int done;
u32 status;
SW_DBG("%s: processing RX ring\n", dev->name);
done = adm5120_switch_rx(limit);
- *budget -= done;
- dev->quota -= done;
-
status = sw_int_status() & SWITCH_INTS_POLL;
if ((done < limit) && (!status)) {
SW_DBG("disable polling mode for %s\n", dev->name);
- netif_rx_complete(dev);
+ napi_complete(napi);
sw_int_unmask(SWITCH_INTS_POLL);
return 0;
}
if (status & SWITCH_INTS_POLL) {
struct net_device *dev = dev_id;
+ struct adm5120_if_priv *priv = netdev_priv(dev);
+
sw_dump_intr_mask("poll ints", status);
SW_DBG("enable polling mode for %s\n", dev->name);
sw_int_mask(SWITCH_INTS_POLL);
- netif_rx_schedule(dev);
+ napi_schedule(&priv->napi);
}
#else
sw_int_ack(status);
/* ------------------------------------------------------------------------ */
+#ifdef CONFIG_ADM5120_SWITCH_NAPI
+static inline void adm5120_if_napi_enable(struct net_device *dev)
+{
+ struct adm5120_if_priv *priv = netdev_priv(dev);
+ napi_enable(&priv->napi);
+}
+
+static inline void adm5120_if_napi_disable(struct net_device *dev)
+{
+ struct adm5120_if_priv *priv = netdev_priv(dev);
+ napi_disable(&priv->napi);
+}
+#else
+static inline void adm5120_if_napi_enable(struct net_device *dev) {}
+static inline void adm5120_if_napi_disable(struct net_device *dev) {}
+#endif /* CONFIG_ADM5120_SWITCH_NAPI */
+
static int adm5120_if_open(struct net_device *dev)
{
u32 t;
int err;
int i;
- err = request_irq(dev->irq, adm5120_switch_irq,
- (IRQF_SHARED | IRQF_DISABLED), dev->name, dev);
+ adm5120_if_napi_enable(dev);
+
+ err = request_irq(dev->irq, adm5120_switch_irq, IRQF_SHARED,
+ dev->name, dev);
if (err) {
SW_ERR("unable to get irq for %s\n", dev->name);
goto err;
return 0;
err:
+ adm5120_if_napi_disable(dev);
return err;
}
int i;
netif_stop_queue(dev);
+ adm5120_if_napi_disable(dev);
/* disable port if not assigned to other devices */
t = sw_read_reg(SWITCH_REG_PORT_CONF0);
static int adm5120_if_set_mac_address(struct net_device *dev, void *p)
{
- struct sockaddr *addr = p;
+ int ret;
+
+ ret = eth_mac_addr(dev, p);
+ if (ret)
+ return ret;
- memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
adm5120_write_mac(dev);
return 0;
}
return 0;
}
+static const struct net_device_ops adm5120sw_netdev_ops = {
+ .ndo_open = adm5120_if_open,
+ .ndo_stop = adm5120_if_stop,
+ .ndo_start_xmit = adm5120_if_hard_start_xmit,
+ .ndo_set_multicast_list = adm5120_if_set_multicast_list,
+ .ndo_do_ioctl = adm5120_if_do_ioctl,
+ .ndo_tx_timeout = adm5120_if_tx_timeout,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_change_mtu = eth_change_mtu,
+ .ndo_set_mac_address = adm5120_if_set_mac_address,
+};
+
static struct net_device *adm5120_if_alloc(void)
{
struct net_device *dev;
if (!dev)
return NULL;
+ priv = netdev_priv(dev);
+ priv->dev = dev;
+
dev->irq = ADM5120_IRQ_SWITCH;
- dev->open = adm5120_if_open;
- dev->hard_start_xmit = adm5120_if_hard_start_xmit;
- dev->stop = adm5120_if_stop;
- dev->set_multicast_list = adm5120_if_set_multicast_list;
- dev->do_ioctl = adm5120_if_do_ioctl;
- dev->tx_timeout = adm5120_if_tx_timeout;
+ dev->netdev_ops = &adm5120sw_netdev_ops;
dev->watchdog_timeo = TX_TIMEOUT;
- dev->set_mac_address = adm5120_if_set_mac_address;
+
#ifdef CONFIG_ADM5120_SWITCH_NAPI
- dev->poll = adm5120_if_poll;
- dev->weight = 64;
+ netif_napi_add(dev, &priv->napi, adm5120_if_poll, 64);
#endif
- SET_MODULE_OWNER(dev);
-
return dev;
}
module_exit(adm5120_switch_mod_exit);
MODULE_LICENSE("GPL v2");
-MODULE_AUTHOR("Gabor Juhos <juhosg at openwrt.org>");
+MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>");
MODULE_DESCRIPTION(DRV_DESC);
MODULE_VERSION(DRV_VERSION);
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