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Commit 5904a980 authored by Jose Abreu's avatar Jose Abreu Committed by David S. Miller
Browse files

net: stmmac: xgmac: Implement ARP Offload 



Implement the ARP Offload feature in XGMAC cores.

Signed-off-by: default avatarJose Abreu <joabreu@synopsys.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 4647e021

drivers/net/ethernet/stmicro/stmmac/common.h

+1 −0
Original line number Diff line number Diff line
@@ -361,6 +361,7 @@ struct dma_features { 
	unsigned int vlins;

	unsigned int dvlan;

	unsigned int l3l4fnum;

	unsigned int arpoffsel;

};



/* GMAC TX FIFO is 8K, Rx FIFO is 16K */

drivers/net/ethernet/stmicro/stmmac/dwxgmac2_core.c

+17 −0
Original line number Diff line number Diff line
@@ -1338,6 +1338,22 @@ static int dwxgmac2_config_l4_filter(struct mac_device_info *hw, u32 filter_no, 
	return 0;

}



static void dwxgmac2_set_arp_offload(struct mac_device_info *hw, bool en,

				     u32 addr)

{

	void __iomem *ioaddr = hw->pcsr;

	u32 value;



	writel(addr, ioaddr + XGMAC_ARP_ADDR);



	value = readl(ioaddr + XGMAC_RX_CONFIG);

	if (en)

		value |= XGMAC_CONFIG_ARPEN;

	else

		value &= ~XGMAC_CONFIG_ARPEN;

	writel(value, ioaddr + XGMAC_RX_CONFIG);

}



const struct stmmac_ops dwxgmac210_ops = {

	.core_init = dwxgmac2_core_init,

	.set_mac = dwxgmac2_set_mac,
@@ -1380,6 +1396,7 @@ const struct stmmac_ops dwxgmac210_ops = { 
	.enable_vlan = dwxgmac2_enable_vlan,

	.config_l3_filter = dwxgmac2_config_l3_filter,

	.config_l4_filter = dwxgmac2_config_l4_filter,

	.set_arp_offload = dwxgmac2_set_arp_offload,

};



int dwxgmac2_setup(struct stmmac_priv *priv)

drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c

+1 −0
Original line number Diff line number Diff line
@@ -370,6 +370,7 @@ static void dwxgmac2_get_hw_feature(void __iomem *ioaddr, 
	dma_cap->atime_stamp = (hw_cap & XGMAC_HWFEAT_TSSEL) >> 12;

	dma_cap->av = (hw_cap & XGMAC_HWFEAT_AVSEL) >> 11;

	dma_cap->av &= (hw_cap & XGMAC_HWFEAT_RAVSEL) >> 10;

	dma_cap->arpoffsel = (hw_cap & XGMAC_HWFEAT_ARPOFFSEL) >> 9;

	dma_cap->rmon = (hw_cap & XGMAC_HWFEAT_MMCSEL) >> 8;

	dma_cap->pmt_magic_frame = (hw_cap & XGMAC_HWFEAT_MGKSEL) >> 7;

	dma_cap->pmt_remote_wake_up = (hw_cap & XGMAC_HWFEAT_RWKSEL) >> 6;

drivers/net/ethernet/stmicro/stmmac/hwif.h

+3 −0
Original line number Diff line number Diff line
@@ -370,6 +370,7 @@ struct stmmac_ops { 
	int (*config_l4_filter)(struct mac_device_info *hw, u32 filter_no,

				bool en, bool udp, bool sa, bool inv,

				u32 match);

	void (*set_arp_offload)(struct mac_device_info *hw, bool en, u32 addr);

};



#define stmmac_core_init(__priv, __args...) \
@@ -454,6 +455,8 @@ struct stmmac_ops { 
	stmmac_do_callback(__priv, mac, config_l3_filter, __args)

#define stmmac_config_l4_filter(__priv, __args...) \

	stmmac_do_callback(__priv, mac, config_l4_filter, __args)

#define stmmac_set_arp_offload(__priv, __args...) \

	stmmac_do_void_callback(__priv, mac, set_arp_offload, __args)



/* PTP and HW Timer helpers */

struct stmmac_hwtimestamp {