From 809b94640c47d08f1efb169cb324a12d411f21bc Mon Sep 17 00:00:00 2001 From: Loic Poulain Date: Tue, 29 Dec 2020 10:04:54 +0100 Subject: [PATCH] net: mhi: Add raw IP mode support MHI net is protocol agnostic, the payload protocol depends on the modem configuration, which can be either RMNET (IP muxing and aggregation) or raw IP. This patch adds support for incomming IPv4/IPv6 packets, that was previously unconditionnaly reported as RMNET packets. Signed-off-by: Loic Poulain Signed-off-by: David S. Miller --- drivers/net/mhi_net.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) diff --git a/drivers/net/mhi_net.c b/drivers/net/mhi_net.c index fa41d8c42f05f..5f3a4cc92a880 100644 --- a/drivers/net/mhi_net.c +++ b/drivers/net/mhi_net.c @@ -122,7 +122,7 @@ static const struct net_device_ops mhi_netdev_ops = { static void mhi_net_setup(struct net_device *ndev) { ndev->header_ops = NULL; /* No header */ - ndev->type = ARPHRD_NONE; /* QMAP... */ + ndev->type = ARPHRD_RAWIP; ndev->hard_header_len = 0; ndev->addr_len = 0; ndev->flags = IFF_POINTOPOINT | IFF_NOARP; @@ -158,7 +158,18 @@ static void mhi_net_dl_callback(struct mhi_device *mhi_dev, u64_stats_add(&mhi_netdev->stats.rx_bytes, mhi_res->bytes_xferd); u64_stats_update_end(&mhi_netdev->stats.rx_syncp); - skb->protocol = htons(ETH_P_MAP); + switch (skb->data[0] & 0xf0) { + case 0x40: + skb->protocol = htons(ETH_P_IP); + break; + case 0x60: + skb->protocol = htons(ETH_P_IPV6); + break; + default: + skb->protocol = htons(ETH_P_MAP); + break; + } + skb_put(skb, mhi_res->bytes_xferd); netif_rx(skb); } -- 2.39.5