[PATCH net-next v2 14/18] net: stmmac: dwmac4/5: Fix Hash Filter

From: Jose Abreu
Date: Fri May 24 2019 - 04:24:21 EST


In order for hash filter to work we need to set the HPF bit.

Fout out while running stmmac selftests

Signed-off-by: Jose Abreu <joabreu@xxxxxxxxxxxx>
Cc: Joao Pinto <jpinto@xxxxxxxxxxxx>
Cc: David S. Miller <davem@xxxxxxxxxxxxx>
Cc: Giuseppe Cavallaro <peppe.cavallaro@xxxxxx>
Cc: Alexandre Torgue <alexandre.torgue@xxxxxx>
---
drivers/net/ethernet/stmicro/stmmac/dwmac4.h | 1 +
drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c | 2 ++
2 files changed, 3 insertions(+)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4.h b/drivers/net/ethernet/stmicro/stmmac/dwmac4.h
index c3cbca804bcd..01c10893b7a5 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac4.h
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4.h
@@ -65,6 +65,7 @@
#define GMAC_PACKET_FILTER_HMC BIT(2)
#define GMAC_PACKET_FILTER_PM BIT(4)
#define GMAC_PACKET_FILTER_PCF BIT(7)
+#define GMAC_PACKET_FILTER_HPF BIT(10)

#define GMAC_MAX_PERFECT_ADDRESSES 128

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c b/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
index 31679480564a..4038fe914f72 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
@@ -440,6 +440,8 @@ static void dwmac4_set_filter(struct mac_device_info *hw,
writel(mc_filter[1], ioaddr + GMAC_HASH_TAB_32_63);
}

+ value |= GMAC_PACKET_FILTER_HPF;
+
/* Handle multiple unicast addresses */
if (netdev_uc_count(dev) > GMAC_MAX_PERFECT_ADDRESSES) {
/* Switch to promiscuous mode if more than 128 addrs
--
2.7.4