Fix Tx Buffer Overflow caused by uninitialized node_tx
memory being used by ULL ISR context due to Compiler
Instructions Reordering in the use of MFIFO_ENQUEUE.
The MFIFO last index was committed before the data element
was stored in the MFIFO due to Compiler Instructions
Reordering.
This is fixed now by adding a Data Memory Barrier
instruction alongwith a compiler memory clobber.
Fixes#30378.
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
Found a few annoying typos and figured I better run script and
fix anything it can find, here are the results...
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
* Slight tweaks to memq comments,
* Document most of mfifo through commentary.
No functional change expected.
Signed-off-by: Mark Ruvald Pedersen <mped@oticon.com>
This is a squash merge of commits introducing the new split
Upper Link Layer and Lower Link Layer architecture of the
Bluetooth Low Energy controller.
This introduces a new, improved Link Layer based on the
concept of split responsibilities; The Upper Link Layer
(ULL) is in charge of control procedures, inter-event
scheduling and overall role management. The code for the
ULL is shared among all hardware implementations. The
Lower Link Layer (LLL) is responsible for the intra-event
scheduling and vendor specific radio hardware access.
The communication between ULL and LLL is achieved through
a set of FIFOs that contain both control and data packets.
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
Signed-off-by: Alberto Escolar Piedras <alpi@oticon.com>
Signed-off-by: Wolfgang Puffitsch <wopu@oticon.com>
Signed-off-by: Morten Priess <mtpr@oticon.com>
