diff options
| author |   Robert Hancock <robert.hancock@calian.com> | 2022-03-04 20:24:42 -0600 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2022-03-05 11:12:08 +0000 |
| commit | 40da5d680e02ca8d61237192db4b5833d3c9639f (patch) | |
| tree | 7183ff1b17b6bdf6739888f63677728755b87290 | |
| parent | net: axienet: implement NAPI and GRO receive (diff) | |
| download | linux-dev-40da5d680e02ca8d61237192db4b5833d3c9639f.tar.xz linux-dev-40da5d680e02ca8d61237192db4b5833d3c9639f.zip | |
net: axienet: reduce default RX interrupt threshold to 1
Now that NAPI has been implemented, the hardware interrupt mitigation
mechanism is not needed to avoid excessive interrupt load in most cases.
Reduce the default RX interrupt threshold to 1 to reduce introduced
latency. This can be increased with ethtool if desired if some applications
still want to reduce interrupts.
Signed-off-by: Robert Hancock <robert.hancock@calian.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/xilinx/xilinx_axienet.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet.h b/drivers/net/ethernet/xilinx/xilinx_axienet.h index c771827587b3..6f0f13b4fb1a 100644 --- a/drivers/net/ethernet/xilinx/xilinx_axienet.h +++ b/drivers/net/ethernet/xilinx/xilinx_axienet.h @@ -122,7 +122,7 @@ /* Default TX/RX Threshold and waitbound values for SGDMA mode */ #define XAXIDMA_DFT_TX_THRESHOLD 24 #define XAXIDMA_DFT_TX_WAITBOUND 254 -#define XAXIDMA_DFT_RX_THRESHOLD 24 +#define XAXIDMA_DFT_RX_THRESHOLD 1 #define XAXIDMA_DFT_RX_WAITBOUND 254 #define XAXIDMA_BD_CTRL_TXSOF_MASK 0x08000000 /* First tx packet */ |