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net: stmmac: Enable dwmac4 jumbo frame more than 8KiB

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Enable GMAC v4.xx and beyond to support 16KiB buffer.

Signed-off-by: Weifeng Voon <weifeng.voon@intel.com>
Signed-off-by: Ong Boon Leong <boon.leong.ong@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Weifeng Voon 2019-07-04 00:59:10 +08:00 committed by David S. Miller
parent 07a4ddec3c
commit c3efed5ad1
1 changed files with 12 additions and 1 deletions
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13
drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c
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@ -443,6 +443,15 @@ static void dwmac4_clear(struct dma_desc *p)
p->des3 = 0;
}
static int set_16kib_bfsize(int mtu)
{
int ret = 0;
if (unlikely(mtu >= BUF_SIZE_8KiB))
ret = BUF_SIZE_16KiB;
return ret;
}
const struct stmmac_desc_ops dwmac4_desc_ops = {
.tx_status = dwmac4_wrback_get_tx_status,
.rx_status = dwmac4_wrback_get_rx_status,
@ -469,4 +478,6 @@ const struct stmmac_desc_ops dwmac4_desc_ops = {
.clear = dwmac4_clear,
};
const struct stmmac_mode_ops dwmac4_ring_mode_ops = { };
const struct stmmac_mode_ops dwmac4_ring_mode_ops = {
.set_16kib_bfsize = set_16kib_bfsize,
};