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Diffstat (limited to 'allwinner-net-emac.patch')
| -rw-r--r-- | allwinner-net-emac.patch | 40 |
1 files changed, 0 insertions, 40 deletions
diff --git a/allwinner-net-emac.patch b/allwinner-net-emac.patch index bad1e4490..c9c7cd0ec 100644 --- a/allwinner-net-emac.patch +++ b/allwinner-net-emac.patch @@ -1932,43 +1932,3 @@ index e5ff734..9eb7f65 100644 -- cgit v1.1 -From 45ab4b13e46325d00f4acdb365d406e941a15f81 Mon Sep 17 00:00:00 2001 -From: Lars Persson <lars.persson@axis.com> -Date: Fri, 1 Dec 2017 11:12:44 +0100 -Subject: stmmac: reset last TSO segment size after device open - -The mss variable tracks the last max segment size sent to the TSO -engine. We do not update the hardware as long as we receive skb:s with -the same value in gso_size. - -During a network device down/up cycle (mapped to stmmac_release() and -stmmac_open() callbacks) we issue a reset to the hardware and it -forgets the setting for mss. However we did not zero out our mss -variable so the next transmission of a gso packet happens with an -undefined hardware setting. - -This triggers a hang in the TSO engine and eventuelly the netdev -watchdog will bark. - -Fixes: f748be531d70 ("stmmac: support new GMAC4") -Signed-off-by: Lars Persson <larper@axis.com> -Signed-off-by: David S. Miller <davem@davemloft.net> ---- - drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 1 + - 1 file changed, 1 insertion(+) - -diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c -index f63c2dd..d725053 100644 ---- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c -+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c -@@ -2588,6 +2588,7 @@ static int stmmac_open(struct net_device *dev) - - priv->dma_buf_sz = STMMAC_ALIGN(buf_sz); - priv->rx_copybreak = STMMAC_RX_COPYBREAK; -+ priv->mss = 0; - - ret = alloc_dma_desc_resources(priv); - if (ret < 0) { --- -cgit v1.1 - |