From: Loic Poulain <loic.poulain@linaro.org>
To: kuba@kernel.org, davem@davemloft.net
Cc: netdev@vger.kernel.org, Loic Poulain <loic.poulain@linaro.org>
Subject: [PATCH net-next v3] net: mhi: Add raw IP mode support
Date: Tue, 29 Dec 2020 10:04:54 +0100 [thread overview]
Message-ID: <1609232694-10858-1-git-send-email-loic.poulain@linaro.org> (raw)
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 <loic.poulain@linaro.org>
---
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 e3f9c0d..478e78f 100644
--- a/drivers/net/mhi_net.c
+++ b/drivers/net/mhi_net.c
@@ -121,7 +121,7 @@ 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;
@@ -157,7 +157,18 @@ 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);
}
--
2.7.4
next reply other threads:[~2020-12-29 8:58 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-29 9:04 Loic Poulain [this message]
2021-01-05 23:41 ` [PATCH net-next v3] net: mhi: Add raw IP mode support David Miller
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1609232694-10858-1-git-send-email-loic.poulain@linaro.org \
--to=loic.poulain@linaro.org \
--cc=davem@davemloft.net \
--cc=kuba@kernel.org \
--cc=netdev@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).