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cns3xxx: ethernet - clean the tx ring before refilling the rx ring to reduce memory pressure

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SVN-Revision: 35953
This commit is contained in:
Felix Fietkau 2013-03-11 02:29:53 +00:00
parent d7a529709a
commit bd6c9d6252
1 changed files with 4 additions and 4 deletions
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8
target/linux/cns3xxx/files/drivers/net/ethernet/cavium/cns3xxx_eth.c
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@ -718,6 +718,10 @@ static int eth_poll(struct napi_struct *napi, int budget)
enable_irq(IRQ_CNS3XXX_SW_R0RXC); enable_irq(IRQ_CNS3XXX_SW_R0RXC);
} }
spin_lock_bh(&tx_lock);
eth_complete_tx(sw);
spin_unlock_bh(&tx_lock);
cns3xxx_alloc_rx_buf(sw, received); cns3xxx_alloc_rx_buf(sw, received);
rx_ring->cur_index = i; rx_ring->cur_index = i;
@ -725,10 +729,6 @@ static int eth_poll(struct napi_struct *napi, int budget)
wmb(); wmb();
enable_rx_dma(sw); enable_rx_dma(sw);
spin_lock_bh(&tx_lock);
eth_complete_tx(sw);
spin_unlock_bh(&tx_lock);
return received; return received;
} }