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net: stmmac: xgmac: Implement ARP Offload

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Implement the ARP Offload feature in XGMAC cores.

Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jose Abreu 2019-09-04 15:16:58 +02:00 committed by David S. Miller
parent 4647e02119
commit 5904a980f9
4 changed files with 22 additions and 0 deletions
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1
drivers/net/ethernet/stmicro/stmmac/common.h
View File

@ -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 */

17
drivers/net/ethernet/stmicro/stmmac/dwxgmac2_core.c
View File

@ -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)

1
drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c
View File

@ -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;

3
drivers/net/ethernet/stmicro/stmmac/hwif.h
View File

@ -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 {