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From: Voon Weifeng <weifeng.voon@intel.com>
To: "David S. Miller" <davem@davemloft.net>,
	Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
	Jose Abreu <joabreu@synopsys.com>,
	Giuseppe Cavallaro <peppe.cavallaro@st.com>,
	Andrew Lunn <andrew@lunn.ch>,
	Alexandre Torgue <alexandre.torgue@st.com>,
	Ong Boon Leong <boon.leong.ong@intel.com>,
	Voon Weifeng <weifeng.voon@intel.com>
Subject: [PATCH v1 net-next] net: stmmac: Enable dwmac4 jumbo frame more than 8KiB
Date: Thu,  4 Jul 2019 00:59:10 +0800	[thread overview]
Message-ID: <1562173150-808-1-git-send-email-weifeng.voon@intel.com> (raw)

From: Weifeng Voon <weifeng.voon@intel.com>

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>

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


             reply	other threads:[~2019-07-03  8:59 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-03 16:59 Voon Weifeng [this message]
2019-07-04 19:33 ` [PATCH v1 net-next] net: stmmac: Enable dwmac4 jumbo frame more than 8KiB David Miller

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