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authorJose Abreu <Jose.Abreu@synopsys.com>2019-12-18 11:17:42 +0100
committerDavid S. Miller <davem@davemloft.net>2019-12-18 12:04:18 -0800
commitb2f3a481c4cd62f78391b836b64c0a6e72b503d2 (patch)
treeb67389cf016c9fb636004cb02b28486903563977 /drivers/net
parent8605131747e7e1fd8f6c9f97a00287aae2b2c640 (diff)
downloadlinux-b2f3a481c4cd62f78391b836b64c0a6e72b503d2.tar.gz
net: stmmac: Enable 16KB buffer size
XGMAC supports maximum MTU that can go to 16KB. Lets add this check in
the calculation of RX buffer size.

Fixes: 7ac6653a085b ("stmmac: Move the STMicroelectronics driver")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/ethernet/stmicro/stmmac/stmmac_main.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index f507a9bee15b..1cb466dd5b3f 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -1109,7 +1109,9 @@ static int stmmac_set_bfsize(int mtu, int bufsize)
 {
 	int ret = bufsize;
 
-	if (mtu >= BUF_SIZE_4KiB)
+	if (mtu >= BUF_SIZE_8KiB)
+		ret = BUF_SIZE_16KiB;
+	else if (mtu >= BUF_SIZE_4KiB)
 		ret = BUF_SIZE_8KiB;
 	else if (mtu >= BUF_SIZE_2KiB)
 		ret = BUF_SIZE_4KiB;