2019-07-03 09:00:19

by Voon, Weifeng

Subject: [PATCH v1 net-next] net: stmmac: Enable dwmac4 jumbo frame more than 8KiB

From: Weifeng Voon <[email protected]>

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

Signed-off-by: Weifeng Voon <[email protected]>
Signed-off-by: Ong Boon Leong <[email protected]>

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c b/drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c
index cf6436d3d6c7..dbde23e7e169 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c
@@ -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 @@ static void dwmac4_clear(struct dma_desc *p)
.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,
+};
--
1.9.1

2019-07-04 19:38:05

by David Miller

Subject: Re: [PATCH v1 net-next] net: stmmac: Enable dwmac4 jumbo frame more than 8KiB

From: Voon Weifeng <[email protected]>
Date: Thu, 4 Jul 2019 00:59:10 +0800

> From: Weifeng Voon <[email protected]>
>
> Enable GMAC v4.xx and beyond to support 16KiB buffer.
>
> Signed-off-by: Weifeng Voon <[email protected]>
> Signed-off-by: Ong Boon Leong <[email protected]>

Applied.