optimize the performance of the minstrel rate algorithm - don't sample lower rates...

[openwrt.git] / target / linux / rb532-2.6 / files / drivers / net / korina.c

diff --git a/target/linux/rb532-2.6/files/drivers/net/korina.c b/target/linux/rb532-2.6/files/drivers/net/korina.c
index 3a22339..6dce2b9 100644 (file)
--- a/target/linux/rb532-2.6/files/drivers/net/korina.c
+++ b/target/linux/rb532-2.6/files/drivers/net/korina.c
@@ -473,8 +473,10 @@ static int rc32434_send_packet(struct sk_buff *skb, struct net_device *dev)
        lp->tx_skb[lp->tx_chain_tail] = skb;
        
        length = skb->len;
+       dma_cache_wback((u32)skb->data, skb->len);
        
        /* Setup the transmit descriptor. */
+       dma_cache_inv((u32) td, sizeof(*td));
        td->ca = CPHYSADDR(skb->data);
        
        if(__raw_readl(&(lp->tx_dma_regs->dmandptr)) == 0) {
@@ -507,6 +509,7 @@ static int rc32434_send_packet(struct sk_buff *skb, struct net_device *dev)
                        lp->tx_chain_tail = (lp->tx_chain_tail + 1) & RC32434_TDS_MASK;                          /* Move tail */
                }
        }
+       dma_cache_wback((u32) td, sizeof(*td));
        
        dev->trans_start = jiffies;                             
        
@@ -675,7 +678,8 @@ static void rc32434_rx_tasklet(unsigned long rx_data_dev)
        unsigned long   flags;
        spin_lock_irqsave(&lp->lock, flags);
 #endif
-       
+
+       dma_cache_inv((u32)rd, sizeof(*rd));
        while ( (count = RC32434_RBSIZE - (u32)DMA_COUNT(rd->control)) != 0) {
 #ifdef CONFIG_IDT_USE_NAPI
                if(--rx_work_limit <0)
@@ -789,6 +793,7 @@ static void rc32434_rx_tasklet(unsigned long rx_data_dev)
                lp->rd_ring[(lp->rx_next_done-1)& RC32434_RDS_MASK].control &=  ~(DMAD_cod_m);  
                
                lp->rx_next_done = (lp->rx_next_done + 1) & RC32434_RDS_MASK;
+               dma_cache_wback((u32)rd, sizeof(*rd));
                rd = &lp->rd_ring[lp->rx_next_done];
                __raw_writel( ~DMAS_d_m, &lp->rx_dma_regs->dmas);
        }       
@@ -809,6 +814,7 @@ static void rc32434_rx_tasklet(unsigned long rx_data_dev)
                rd->devcs = 0;
                skb = lp->rx_skb[lp->rx_next_done];
                rd->ca = CPHYSADDR(skb->data);
+               dma_cache_wback((u32)rd, sizeof(*rd));
                rc32434_chain_rx(lp,rd);
        }