Am 08.07.2014 20:01, schrieb KY Srinivasan: > > >> -----Original Message----- >> From: Richard Weinberger [mailto:richard@xxxxxx] >> Sent: Tuesday, July 8, 2014 2:32 AM >> To: KY Srinivasan; Haiyang Zhang >> Cc: devel@xxxxxxxxxxxxxxxxxxxxxx; netdev@xxxxxxxxxxxxxxx; linux- >> kernel@xxxxxxxxxxxxxxx; Richard Weinberger >> Subject: [PATCH] hyperv: Add netpoll support >> >> In order to have at least a netconsole to debug kernel issues on Windows >> Azure this patch implements netpoll support. >> Sending packets is easy, netvsc_start_xmit() does already everything >> needed. >> To receive we need to trigger the channel callback which is usally called via >> tasklet_schedule(). >> >> Signed-off-by: Richard Weinberger <richard@xxxxxx> >> --- >> drivers/net/hyperv/netvsc_drv.c | 14 ++++++++++++++ >> 1 file changed, 14 insertions(+) >> >> diff --git a/drivers/net/hyperv/netvsc_drv.c >> b/drivers/net/hyperv/netvsc_drv.c index 4fd71b7..367b71e 100644 >> --- a/drivers/net/hyperv/netvsc_drv.c >> +++ b/drivers/net/hyperv/netvsc_drv.c >> @@ -736,6 +736,17 @@ static int netvsc_set_mac_addr(struct net_device >> *ndev, void *p) >> return err; >> } >> >> +#ifdef CONFIG_NET_POLL_CONTROLLER >> +static void netvsc_poll_controller(struct net_device *net) { >> + struct net_device_context *net_device_ctx = netdev_priv(net); >> + struct hv_device *dev = net_device_ctx->device_ctx; >> + >> + local_bh_disable(); >> + netvsc_channel_cb(dev->channel); >> + local_bh_enable(); >> +} >> +#endif > > Each channel is bound to a specific VCPU in the guest and the channel callback is expected to be delivered on > the VCPU the channel is bound to. This code is not satisfying that requirement. But struct hv_device has only one channel attribute. How does this work with multiple VCPUs? Anyways, what solution to you propose? Thanks, //richard _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
