From: Jose Abreu <Jose.Abreu@synopsys.com>
To: netdev@vger.kernel.org
Cc: Joao Pinto <Joao.Pinto@synopsys.com>,
Jose Abreu <Jose.Abreu@synopsys.com>,
Giuseppe Cavallaro <peppe.cavallaro@st.com>,
Alexandre Torgue <alexandre.torgue@st.com>,
Jose Abreu <Jose.Abreu@synopsys.com>,
"David S. Miller" <davem@davemloft.net>,
Maxime Coquelin <mcoquelin.stm32@gmail.com>,
linux-stm32@st-md-mailman.stormreply.com,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: [PATCH net 4/8] net: stmmac: dwmac4: Always update the MAC Hash Filter
Date: Fri, 27 Sep 2019 09:48:52 +0200 [thread overview]
Message-ID: <7a69c00a5dc6d54eabceba806e90151197565d1a.1569569778.git.Jose.Abreu@synopsys.com> (raw)
In-Reply-To: <cover.1569569778.git.Jose.Abreu@synopsys.com>
In-Reply-To: <cover.1569569778.git.Jose.Abreu@synopsys.com>
We need to always update the MAC Hash Filter so that previous entries
are invalidated.
Found out while running stmmac selftests.
Fixes: b8ef7020d6e5 ("net: stmmac: add support for hash table size 128/256 in dwmac4")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
---
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Cc: Jose Abreu <joabreu@synopsys.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: netdev@vger.kernel.org
Cc: linux-stm32@st-md-mailman.stormreply.com
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
---
drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c | 13 +++++++------
1 file changed, 7 insertions(+), 6 deletions(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c b/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
index 9b4b5f69fc02..2cb9c53f93b8 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
@@ -401,8 +401,11 @@ static void dwmac4_set_filter(struct mac_device_info *hw,
int numhashregs = (hw->multicast_filter_bins >> 5);
int mcbitslog2 = hw->mcast_bits_log2;
unsigned int value;
+ u32 mc_filter[8];
int i;
+ memset(mc_filter, 0, sizeof(mc_filter));
+
value = readl(ioaddr + GMAC_PACKET_FILTER);
value &= ~GMAC_PACKET_FILTER_HMC;
value &= ~GMAC_PACKET_FILTER_HPF;
@@ -416,16 +419,13 @@ static void dwmac4_set_filter(struct mac_device_info *hw,
/* Pass all multi */
value |= GMAC_PACKET_FILTER_PM;
/* Set all the bits of the HASH tab */
- for (i = 0; i < numhashregs; i++)
- writel(0xffffffff, ioaddr + GMAC_HASH_TAB(i));
+ memset(mc_filter, 0xff, sizeof(mc_filter));
} else if (!netdev_mc_empty(dev)) {
struct netdev_hw_addr *ha;
- u32 mc_filter[8];
/* Hash filter for multicast */
value |= GMAC_PACKET_FILTER_HMC;
- memset(mc_filter, 0, sizeof(mc_filter));
netdev_for_each_mc_addr(ha, dev) {
/* The upper n bits of the calculated CRC are used to
* index the contents of the hash table. The number of
@@ -440,10 +440,11 @@ static void dwmac4_set_filter(struct mac_device_info *hw,
*/
mc_filter[bit_nr >> 5] |= (1 << (bit_nr & 0x1f));
}
- for (i = 0; i < numhashregs; i++)
- writel(mc_filter[i], ioaddr + GMAC_HASH_TAB(i));
}
+ for (i = 0; i < numhashregs; i++)
+ writel(mc_filter[i], ioaddr + GMAC_HASH_TAB(i));
+
value |= GMAC_PACKET_FILTER_HPF;
/* Handle multiple unicast addresses */
--
2.7.4
next prev parent reply other threads:[~2019-09-27 7:49 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-27 7:48 [PATCH net 0/8] net: stmmac: Fixes for -net Jose Abreu
2019-09-27 7:48 ` [PATCH net 1/8] net: stmmac: xgmac: Not all Unicast addresses may be available Jose Abreu
2019-09-27 7:48 ` [PATCH net 2/8] net: stmmac: xgmac: Detect Hash Table size dinamically Jose Abreu
2019-09-27 7:48 ` [PATCH net 3/8] net: stmmac: selftests: Always use max DMA size in Jumbo Test Jose Abreu
2019-09-27 7:48 ` Jose Abreu [this message]
2019-09-27 7:48 ` [PATCH net 5/8] net: stmmac: Correctly take timestamp for PTPv2 Jose Abreu
2019-09-27 7:48 ` [PATCH net 6/8] net: stmmac: Do not stop PHY if WoL is enabled Jose Abreu
2019-09-27 7:48 ` [PATCH net 7/8] net: stmmac: xgmac: Disable the Timestamp interrupt by default Jose Abreu
2019-09-27 7:48 ` [PATCH net 8/8] net: stmmac: xgmac: Fix RSS not writing all Keys to HW Jose Abreu
2019-09-27 21:12 ` Nick Desaulniers
2019-09-28 9:01 ` [PATCH net 0/8] net: stmmac: Fixes for -net Jose Abreu
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