diff options
| author | Daniele Palmas <dnlplm@gmail.com> | 2023-08-01 14:38:24 +0200 |
|---|---|---|
| committer | Aleksander Morgado <aleksander@aleksander.es> | 2023-08-07 10:52:55 +0000 |
| commit | 65e2db75edb6b792aa8f270899718e24ce80d03a (patch) | |
| tree | a89f46732a3a8d439b4a1e9979a3493d983e2def | |
| parent | 639900ed36470ef5c979df9b69fa6bf7793b6b21 (diff) | |
port-qmi: restore driver initial MTU for mhi-net when resetting link
Kernel driver mhi-net sets a custom MTU for the netdevice: use the
same value when resetting the netdevice to its initial state.
This is important especially when rmnet is used on top of mhi-net,
since rmnet netdevices get their initial MTU from the mhi-net one.
| -rw-r--r-- | src/mm-port-qmi.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/src/mm-port-qmi.c b/src/mm-port-qmi.c index c0cf6092..46a14b63 100644 --- a/src/mm-port-qmi.c +++ b/src/mm-port-qmi.c @@ -33,6 +33,7 @@ /* as internally defined in the kernel */ #define RMNET_MAX_PACKET_SIZE 16384 +#define MHI_NET_MTU_DEFAULT 16384 G_DEFINE_TYPE (MMPortQmi, mm_port_qmi, MM_TYPE_PORT) @@ -977,6 +978,7 @@ internal_reset (MMPortQmi *self, { GTask *task; InternalResetContext *ctx; + guint mtu; task = g_task_new (self, NULL, callback, user_data); @@ -985,12 +987,18 @@ internal_reset (MMPortQmi *self, ctx->device = g_object_ref (device); g_task_set_task_data (task, ctx, (GDestroyNotify) internal_reset_context_free); + /* mhi_net has a custom default MTU set by the kernel driver */ + if (g_strcmp0 (self->priv->net_driver, "mhi_net") == 0) + mtu = MHI_NET_MTU_DEFAULT; + else + mtu = MM_PORT_NET_MTU_DEFAULT; + /* first, bring down main interface */ mm_obj_dbg (self, "bringing down data interface '%s'", mm_port_get_device (ctx->data)); mm_port_net_link_setup (MM_PORT_NET (ctx->data), FALSE, - MM_PORT_NET_MTU_DEFAULT, + mtu, NULL, (GAsyncReadyCallback) net_link_down_ready, task); |