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greybus: svc: create bidirectional routes on hotplug request 

Upon receiving a hotplug request, we need to prepare the routing table
to allow packets to flow between the AP interface and the newly detected
interface.

Tested-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Perry Hung <perry@leaflabs.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
hifive-unleashed-5.1
Perry Hung 2015-07-24 19:02:32 -04:00 committed by Greg Kroah-Hartman
parent e08aaa49df
commit 7e275465fa
1 changed files with 19 additions and 0 deletions
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19
drivers/staging/greybus/svc.c
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@ -309,6 +309,25 @@ static int gb_svc_intf_hotplug_recv(struct gb_operation *op)
goto ida_put;
}
/*
* Create a two-way route between the AP and the new interface
*/
ret = route_create_operation(svc, hd->endo->ap_intf_id,
GB_DEVICE_ID_AP, intf_id, device_id);
if (ret) {
dev_err(dev, "%s: Route create operation failed, interface %hhu device_id %hhu (%d)\n",
__func__, intf_id, device_id, ret);
goto ida_put;
}
ret = route_create_operation(svc, intf_id, device_id,
hd->endo->ap_intf_id, GB_DEVICE_ID_AP);
if (ret) {
dev_err(dev, "%s: Route create operation failed, interface %hhu device_id %hhu (%d)\n",
__func__, intf_id, device_id, ret);
goto ida_put;
}
ret = gb_interface_init(intf, device_id);
if (ret) {
dev_err(dev, "%s: Failed to initialize interface, interface %hhu device_id %hhu (%d)\n",