netdev - [PATCH net-next] net: ftmac100: handle netdev flags IFF_PROMISC and IFF

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Date:   Mon, 16 Jan 2023 21:27:16 +0300
From:   Sergei Antonov <saproj@...il.com>
To:     netdev@...r.kernel.org
Cc:     davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
        pabeni@...hat.com, vladimir.oltean@....com,
        Sergei Antonov <saproj@...il.com>
Subject: [PATCH net-next] net: ftmac100: handle netdev flags IFF_PROMISC and IFF_ALLMULTI

When netdev->flags has IFF_PROMISC or IFF_ALLMULTI, set the
corresponding bits in the MAC Control Register (MACCR).

This change is based on code from the ftgmac100 driver, see
ftgmac100_start_hw() in ftgmac100.c

Signed-off-by: Sergei Antonov <saproj@...il.com>
---
 drivers/net/ethernet/faraday/ftmac100.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/net/ethernet/faraday/ftmac100.c b/drivers/net/ethernet/faraday/ftmac100.c
index 6c8c78018ce6..139fe66f8bcd 100644
--- a/drivers/net/ethernet/faraday/ftmac100.c
+++ b/drivers/net/ethernet/faraday/ftmac100.c
@@ -182,6 +182,12 @@ static int ftmac100_start_hw(struct ftmac100 *priv)
 	if (netdev->mtu > ETH_DATA_LEN)
 		maccr |= FTMAC100_MACCR_RX_FTL;
 
+	/* Add other bits as needed */
+	if (netdev->flags & IFF_PROMISC)
+		maccr |= FTMAC100_MACCR_RCV_ALL;
+	if (netdev->flags & IFF_ALLMULTI)
+		maccr |= FTMAC100_MACCR_RX_MULTIPKT;
+
 	iowrite32(maccr, priv->base + FTMAC100_OFFSET_MACCR);
 	return 0;
 }
-- 
2.34.1