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net: stmmac: Enable 16KB buffer size

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commit b2f3a481c4cd62f78391b836b64c0a6e72b503d2 upstream.

XGMAC supports maximum MTU that can go to 16KB. Lets add this check in
the calculation of RX buffer size.

Fixes: 7ac6653a08 ("stmmac: Move the STMicroelectronics driver")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jose Abreu 2019-12-18 11:17:42 +01:00 • committed by Greg Kroah-Hartman
commit 6b5d1613f3
1 changed files with 3 additions and 1 deletions
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4
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
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@ -1108,7 +1108,9 @@ 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;