From 4439dc427d83c67aaa8447091c479c482ff85af9 Mon Sep 17 00:00:00 2001 From: Sasha Neftin Date: Wed, 13 Nov 2019 11:27:29 +0200 Subject: [PATCH] igc: Add 64 bit DMA access support On relevant platforms ndo_start_xmit can handle socket buffer fragments in high memory Signed-off-by: Sasha Neftin Tested-by: Aaron Brown Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/igc/igc_main.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/ethernet/intel/igc/igc_main.c b/drivers/net/ethernet/intel/igc/igc_main.c index d3a45d3cbcd92..b85009837cdff 100644 --- a/drivers/net/ethernet/intel/igc/igc_main.c +++ b/drivers/net/ethernet/intel/igc/igc_main.c @@ -4445,6 +4445,9 @@ static int igc_probe(struct pci_dev *pdev, netdev->hw_features |= NETIF_F_NTUPLE; netdev->hw_features |= netdev->features; + if (pci_using_dac) + netdev->features |= NETIF_F_HIGHDMA; + /* MTU range: 68 - 9216 */ netdev->min_mtu = ETH_MIN_MTU; netdev->max_mtu = MAX_STD_JUMBO_FRAME_SIZE; -- 2.39.5