target/linux/bcm27xx/patches-4.19/950-0469-bcmgenet-constrain-max-DMA-burst-length.patch

   1 From 12865021c91e21ca7189c6a84688459d400de204 Mon Sep 17 00:00:00 2001
   2 From: Jonathan Bell <jonathan@raspberrypi.org>
   3 Date: Wed, 12 Sep 2018 14:44:53 +0100
   4 Subject: [PATCH] bcmgenet: constrain max DMA burst length
   5
   6 ---
   7  drivers/net/ethernet/broadcom/genet/bcmgenet.h | 2 +-
   8  1 file changed, 1 insertion(+), 1 deletion(-)
   9
  10 --- a/drivers/net/ethernet/broadcom/genet/bcmgenet.h
  11 +++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.h
  12 @@ -31,7 +31,7 @@
  13  #define ENET_PAD               8
  14  #define ENET_MAX_MTU_SIZE      (ETH_DATA_LEN + ETH_HLEN + VLAN_HLEN + \
  15                                  ENET_BRCM_TAG_LEN + ETH_FCS_LEN + ENET_PAD)
  16 -#define DMA_MAX_BURST_LENGTH    0x10
  17 +#define DMA_MAX_BURST_LENGTH    0x08
  18
  19  /* misc. configuration */
  20  #define CLEAR_ALL_HFB                  0xFF