diff options
| -rw-r--r-- | target/linux/adm5120/patches-2.6.24/900-adm5120_switch_napi.patch | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/target/linux/adm5120/patches-2.6.24/900-adm5120_switch_napi.patch b/target/linux/adm5120/patches-2.6.24/900-adm5120_switch_napi.patch new file mode 100644 index 000000000..5c757a10b --- /dev/null +++ b/target/linux/adm5120/patches-2.6.24/900-adm5120_switch_napi.patch @@ -0,0 +1,144 @@ +Index: linux-2.6.24/drivers/net/adm5120sw.c +=================================================================== +--- linux-2.6.24.orig/drivers/net/adm5120sw.c ++++ linux-2.6.24/drivers/net/adm5120sw.c +@@ -93,8 +93,14 @@ + /* ------------------------------------------------------------------------ */ + + 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 { +@@ -333,7 +339,6 @@ static void sw_dump_regs(void) + SW_DBG("rlda: %08X\n", t); + } + +- + /* ------------------------------------------------------------------------ */ + + static inline void adm5120_rx_dma_update(struct dma_desc *desc, +@@ -495,9 +500,11 @@ static void adm5120_switch_tx(void) + } + + #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; + +@@ -509,13 +516,10 @@ static int adm5120_if_poll(struct net_de + 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); ++ netif_rx_complete(dev, napi); + sw_int_unmask(SWITCH_INTS_POLL); + return 0; + } +@@ -541,10 +545,12 @@ static irqreturn_t adm5120_switch_irq(in + + 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); ++ netif_rx_schedule(dev, &priv->napi); + } + #else + sw_int_ack(status); +@@ -779,12 +785,31 @@ static void adm5120_switch_set_vlan_port + + /* ------------------------------------------------------------------------ */ + ++#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; + ++ adm5120_if_napi_enable(dev); ++ + err = request_irq(dev->irq, adm5120_switch_irq, + (IRQF_SHARED | IRQF_DISABLED), dev->name, dev); + if (err) { +@@ -809,6 +834,7 @@ static int adm5120_if_open(struct net_de + return 0; + + err: ++ adm5120_if_napi_disable(dev); + return err; + } + +@@ -818,6 +844,7 @@ static int adm5120_if_stop(struct net_de + 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); +@@ -1001,6 +1028,9 @@ static struct net_device *adm5120_if_all + 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; +@@ -1010,13 +1040,11 @@ static struct net_device *adm5120_if_all + dev->tx_timeout = adm5120_if_tx_timeout; + 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; + } + |