diff options
| -rw-r--r-- | drivers/net/ethernet/xilinx/xilinx_axienet_main.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c index 340c0a20b3f2..44815c4ab485 100644 --- a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c +++ b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c @@ -236,14 +236,24 @@ static void axienet_dma_start(struct axienet_local *lp) /* Start updating the Rx channel control register */ rx_cr = (lp->coalesce_count_rx << XAXIDMA_COALESCE_SHIFT) | - (XAXIDMA_DFT_RX_WAITBOUND << XAXIDMA_DELAY_SHIFT) | - XAXIDMA_IRQ_ALL_MASK; + XAXIDMA_IRQ_IOC_MASK | XAXIDMA_IRQ_ERROR_MASK; + /* Only set interrupt delay timer if not generating an interrupt on + * the first RX packet. Otherwise leave at 0 to disable delay interrupt. + */ + if (lp->coalesce_count_rx > 1) + rx_cr |= (XAXIDMA_DFT_RX_WAITBOUND << XAXIDMA_DELAY_SHIFT) | + XAXIDMA_IRQ_DELAY_MASK; axienet_dma_out32(lp, XAXIDMA_RX_CR_OFFSET, rx_cr); /* Start updating the Tx channel control register */ tx_cr = (lp->coalesce_count_tx << XAXIDMA_COALESCE_SHIFT) | - (XAXIDMA_DFT_TX_WAITBOUND << XAXIDMA_DELAY_SHIFT) | - XAXIDMA_IRQ_ALL_MASK; + XAXIDMA_IRQ_IOC_MASK | XAXIDMA_IRQ_ERROR_MASK; + /* Only set interrupt delay timer if not generating an interrupt on + * the first TX packet. Otherwise leave at 0 to disable delay interrupt. + */ + if (lp->coalesce_count_tx > 1) + tx_cr |= (XAXIDMA_DFT_TX_WAITBOUND << XAXIDMA_DELAY_SHIFT) | + XAXIDMA_IRQ_DELAY_MASK; axienet_dma_out32(lp, XAXIDMA_TX_CR_OFFSET, tx_cr); /* Populate the tail pointer and bring the Rx Axi DMA engine out of |