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net: stmmac: ARP Offload for GMAC4+ Cores

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Implement the ARP Offload feature in GMAC4 and GMAC5 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 2019-09-10 16:41:27 +02:00 committed by David S. Miller
parent e94e3f3b51
commit c9b10043d0
3 changed files with 23 additions and 0 deletions
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3
drivers/net/ethernet/stmicro/stmmac/dwmac4.h
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@ -40,6 +40,7 @@
#define GMAC_HW_FEATURE3 0x00000128
#define GMAC_MDIO_ADDR 0x00000200
#define GMAC_MDIO_DATA 0x00000204
#define GMAC_ARP_ADDR 0x00000210
#define GMAC_ADDR_HIGH(reg) (0x300 + reg * 8)
#define GMAC_ADDR_LOW(reg) (0x304 + reg * 8)
@ -165,6 +166,7 @@ enum power_event {
#define GMAC_DEBUG_RPESTS BIT(0)
/* MAC config */
#define GMAC_CONFIG_ARPEN BIT(31)
#define GMAC_CONFIG_SARC GENMASK(30, 28)
#define GMAC_CONFIG_SARC_SHIFT 28
#define GMAC_CONFIG_IPC BIT(27)
@ -188,6 +190,7 @@ enum power_event {
#define GMAC_HW_FEAT_TXCOSEL BIT(14)
#define GMAC_HW_FEAT_EEESEL BIT(13)
#define GMAC_HW_FEAT_TSSEL BIT(12)
#define GMAC_HW_FEAT_ARPOFFSEL BIT(9)
#define GMAC_HW_FEAT_MMCSEL BIT(8)
#define GMAC_HW_FEAT_MGKSEL BIT(7)
#define GMAC_HW_FEAT_RWKSEL BIT(6)

19
drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
View File

@ -782,6 +782,22 @@ static void dwmac4_enable_vlan(struct mac_device_info *hw, u32 type)
writel(value, ioaddr + GMAC_VLAN_INCL);
}
static void dwmac4_set_arp_offload(struct mac_device_info *hw, bool en,
u32 addr)
{
void __iomem *ioaddr = hw->pcsr;
u32 value;
writel(addr, ioaddr + GMAC_ARP_ADDR);
value = readl(ioaddr + GMAC_CONFIG);
if (en)
value |= GMAC_CONFIG_ARPEN;
else
value &= ~GMAC_CONFIG_ARPEN;
writel(value, ioaddr + GMAC_CONFIG);
}
const struct stmmac_ops dwmac4_ops = {
.core_init = dwmac4_core_init,
.set_mac = stmmac_set_mac,
@ -815,6 +831,7 @@ const struct stmmac_ops dwmac4_ops = {
.update_vlan_hash = dwmac4_update_vlan_hash,
.sarc_configure = dwmac4_sarc_configure,
.enable_vlan = dwmac4_enable_vlan,
.set_arp_offload = dwmac4_set_arp_offload,
};
const struct stmmac_ops dwmac410_ops = {
@ -850,6 +867,7 @@ const struct stmmac_ops dwmac410_ops = {
.update_vlan_hash = dwmac4_update_vlan_hash,
.sarc_configure = dwmac4_sarc_configure,
.enable_vlan = dwmac4_enable_vlan,
.set_arp_offload = dwmac4_set_arp_offload,
};
const struct stmmac_ops dwmac510_ops = {
@ -890,6 +908,7 @@ const struct stmmac_ops dwmac510_ops = {
.update_vlan_hash = dwmac4_update_vlan_hash,
.sarc_configure = dwmac4_sarc_configure,
.enable_vlan = dwmac4_enable_vlan,
.set_arp_offload = dwmac4_set_arp_offload,
};
int dwmac4_setup(struct stmmac_priv *priv)

1
drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.c
View File

@ -349,6 +349,7 @@ static void dwmac4_get_hw_feature(void __iomem *ioaddr,
dma_cap->tx_coe = (hw_cap & GMAC_HW_FEAT_TXCOSEL) >> 14;
dma_cap->rx_coe = (hw_cap & GMAC_HW_FEAT_RXCOESEL) >> 16;
dma_cap->vlins = (hw_cap & GMAC_HW_FEAT_SAVLANINS) >> 27;
dma_cap->arpoffsel = (hw_cap & GMAC_HW_FEAT_ARPOFFSEL) >> 9;
/* MAC HW feature1 */
hw_cap = readl(ioaddr + GMAC_HW_FEATURE1);