From bd6c9d6252914dde962d00773ad657da409dc800 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Mon, 11 Mar 2013 02:29:53 +0000 Subject: [PATCH] cns3xxx: ethernet - clean the tx ring before refilling the rx ring to reduce memory pressure SVN-Revision: 35953 --- .../files/drivers/net/ethernet/cavium/cns3xxx_eth.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/target/linux/cns3xxx/files/drivers/net/ethernet/cavium/cns3xxx_eth.c b/target/linux/cns3xxx/files/drivers/net/ethernet/cavium/cns3xxx_eth.c index 9c3618fd9b..db15a2e2e5 100644 --- a/target/linux/cns3xxx/files/drivers/net/ethernet/cavium/cns3xxx_eth.c +++ b/target/linux/cns3xxx/files/drivers/net/ethernet/cavium/cns3xxx_eth.c @@ -718,6 +718,10 @@ static int eth_poll(struct napi_struct *napi, int budget) 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); rx_ring->cur_index = i; @@ -725,10 +729,6 @@ static int eth_poll(struct napi_struct *napi, int budget) wmb(); enable_rx_dma(sw); - spin_lock_bh(&tx_lock); - eth_complete_tx(sw); - spin_unlock_bh(&tx_lock); - return received; }