target/linux/arc770/patches-4.9/700-stmmac-Disable-frame-filtering-completely.patch

   1 From 0031b9011cb2b2b1de4dbb4f9620303aec760db4 Mon Sep 17 00:00:00 2001
   2 From: Alexey Brodkin <abrodkin@synopsys.com>
   3 Date: Wed, 27 Jul 2016 11:33:14 +0300
   4 Subject: [PATCH] stmmac: Disable frame filtering completely
   5
   6 For some [still unknown] reason in ARC SDP boards
   7 DW GMAC doesn't enter promiscuous mode if eth0 gets
   8 added to the br-lan interface before Ethernet PHY finishes
   9 autonegotiation (PHY gets reset on DW GMAC start).
  10
  11 As a work-around we completely disable frame filtering
  12 in GMAC hardware which gives us working bridge that consists
  13 of eth0 and wlan0 (USB Wi-Fi dongle). I.e. we finally have
  14 working "Dumb AP" setup made of ARC AXS10x boards.
  15
  16 Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
  17 ---
  18  drivers/net/ethernet/stmicro/stmmac/common.h | 2 +-
  19  1 file changed, 1 insertion(+), 1 deletion(-)
  20
  21 --- a/drivers/net/ethernet/stmicro/stmmac/common.h
  22 +++ b/drivers/net/ethernet/stmicro/stmmac/common.h
  23 @@ -49,7 +49,7 @@
  24  #define STMMAC_GET_ENTRY(x, size)      ((x + 1) & (size - 1))
  25
  26  #undef FRAME_FILTER_DEBUG
  27 -/* #define FRAME_FILTER_DEBUG */
  28 +#define FRAME_FILTER_DEBUG
  29
  30  /* Extra statistic and debug information exposed by ethtool */
  31  struct stmmac_extra_stats {