diff options
| author |   Lendacky, Thomas <Thomas.Lendacky@amd.com> | 2017-06-28 13:43:26 -0500 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2017-06-29 15:14:19 -0400 |
| commit | 6f595959c095d8923b19196fea3e983dcb299f22 (patch) | |
| tree | b78e9054899d2b726a2260c6115d9304315c1f7e /drivers/net/ethernet/amd/xgbe/xgbe-main.c | |
| parent | amd-xgbe: Simplify the burst length settings (diff) | |
| download | linux-dev-6f595959c095d8923b19196fea3e983dcb299f22.tar.xz linux-dev-6f595959c095d8923b19196fea3e983dcb299f22.zip | |
amd-xgbe: Adjust register settings to improve performance
Add support to change some general performance settings and to provide
some performance settings based on the device that is probed.
This includes:
- Setting the maximum read/write outstanding request limit
- Reducing the AXI interface burst length size
- Selectively setting the Tx and Rx descriptor pre-fetch threshold
- Selectively setting additional cache coherency controls
Tested and verified on all versions of the hardware.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/amd/xgbe/xgbe-main.c')
| -rw-r--r-- | drivers/net/ethernet/amd/xgbe/xgbe-main.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-main.c b/drivers/net/ethernet/amd/xgbe/xgbe-main.c index 8eec9f5991f5..500147d9e3c8 100644 --- a/drivers/net/ethernet/amd/xgbe/xgbe-main.c +++ b/drivers/net/ethernet/amd/xgbe/xgbe-main.c @@ -140,8 +140,11 @@ static void xgbe_default_config(struct xgbe_prv_data *pdata) { DBGPR("-->xgbe_default_config\n"); - pdata->blen = DMA_SBMR_BLEN_256; + pdata->blen = DMA_SBMR_BLEN_64; pdata->pbl = DMA_PBL_128; + pdata->aal = 1; + pdata->rd_osr_limit = 8; + pdata->wr_osr_limit = 8; pdata->tx_sf_mode = MTL_TSF_ENABLE; pdata->tx_threshold = MTL_TX_THRESHOLD_64; pdata->tx_osp_mode = DMA_OSP_ENABLE; |