Since commit 12c6b1bd8, the i.MX RT1050 has effectively had its data
cache disabled, as the SDRAM was marked Shareable; for the Cortex-M7,
shareable memory is not cached.
This was done to make the Ethernet driver work without any cache
maintenance code. This commit adds cache maintenance and memory barriers
to the Ethernet driver, and removes the Shareable attribute from the
SDRAM, so the data cache is used again.
Cache code in the base fsl_enet.c driver has not been activated - the
bulk of it is in higher-level Read and Write calls that we're not using,
and there is one flawed invalidate in its initialisation. Instead
imx_emac.cpp takes full cache responsibility.
This commit also marks the SDRAM as read/write-allocate. As the
Cortex-M7 has its "Dynamic read allocate mode" to automatically switch
back to read-allocate in cases where write allocate is working poorly
(eg large memset), this should result in a performance boost with no
downside.
Activating write-allocate is also an attempt to provoke any flaws in
cache maintenance - the Ethernet transmit buffers for example will be
more likely to have a little data in the cache that needs cleaning.
There are two EventQueue.h in mbed-os codebase:
events/EventQueue.h
features/FEATURE_BLE/ble/pal/EventQueue.h
By accident, `mbed compile` generates includes.txt with the correct
order of include search paths. This is not the case for the CMake
exporter: targets with FEATURE_BLE enables fail to compile with errors:
mbed-os/features/cellular/framework/AT/ATHandler.h:99:60: error:
'events' has not been declared
Update all places to always include either "events/EventQueue.h"
or "ble/pal/EventQueue.h": to always find the correct header.
Based on valgrind reports running on unit tests following changes were introduced:
* TLSSocketWrapper frees allocated cert buffer in case of errors from mbedtls,
* nsapi_addr has a mem_init() function, initializing all of its memory during construction.
Added Multihoming feature to LWIP (ability to use more than one network interfaces) for increasing networking reliability.
This involves:
LWIP interface
LWIP IP routing
DNS storage
Sockets (bind to interface name possibility)
possibility to add non default network interface
cellular middleware modifications if cellular connection is used
It was decided to retire CellularBase class which served as a pure
virtual interface class from which Cellular network stack
implementations would get inherited. However, the current view is that
we may be the only user of it so we could retire CellularBase.
In case mbedtls fails to execute handshake advertising
MBEDTLS_ERR_SSL_WANT_READ or MBEDTLS_ERR_SSL_WANT_WRITE,
TLSSocketWrapper::continue_handshake returns NSAPI_ERROR_WOULD_BLOCK.
Allow more than one callback to be register to NetworkInterfaces.
This introduces new APIs:
void NetworkInterface::add_event_listener(...);
void NetworkInterface::remove_event_listener(...);
Which internally calls interfaces attach() functions.
Kevin Bracey
Mahesh Mahadevan
Cruz Monrreal
Martin Kojtal
Michal Paszta
kegilbert
Kari Haapalehto
Veijo Pesonen
d-kato
Seppo Takalo
Volodymyr Medvid
Tymoteusz Bloch
Jari Poyhonen
Tymoteusz Bloch
Marcin Tomczyk
Ron Eldor
Mirela Chirica
Cai
Nir Sonnenschein
Ari Parkkila
Jan Jongboom