Hi Manish, > During command status or command complete event, the controller may set > ncmd=0 indicating that it is not accepting any more commands. In such a > case, host holds off sending any more commands to the controller. If the > controller doesn't recover from such condition, host will wait forever, > until the user decides that the Bluetooth is broken and may power cycles > the Bluetooth. > > This patch triggers the hardware error to reset the controller and > driver when it gets into such state as there is no other wat out. > > Reviewed-by: Abhishek Pandit-Subedi <abhishekpandit@xxxxxxxxxxxx> > Signed-off-by: Manish Mandlik <mmandlik@xxxxxxxxxx> > --- > > Changes in v4: > - Update comment in hci_ncmd_timeout > - Add a new inline function to handle cmd_cnt and timers > > Changes in v3: > - Restructure ncmd_timer scheduling in hci_event.c > - Cancel delayed work in hci_dev_do_close > - Do not inject hw error during HCI_INIT > - Update comment, add log message while injecting hw error > > Changes in v2: > - Emit the hardware error when ncmd=0 occurs > > include/net/bluetooth/hci.h | 1 + > include/net/bluetooth/hci_core.h | 1 + > net/bluetooth/hci_core.c | 22 ++++++++++++++++++++++ > net/bluetooth/hci_event.c | 29 +++++++++++++++++++---------- > 4 files changed, 43 insertions(+), 10 deletions(-) patch has been applied to bluetooth-next tree. Regards Marcel
