- Added CRC32 functions for multicast address filtering.
- Do not reset PHY settings when doing an ifup
- Use chip's unique id as the device MAC
- Enable discard enet frames with errors at PHY layer
This makes the user interface a little hostile. People thing of an MTU of 1500 bytes, but the corresponding packet is really 1514 bytes (including the 14 byte Ethernet header). A more friendly solution would configure the MTU (as before), but then derive the packet buffer size by adding the MAC header length. Instead, we define the packet buffer size then derive the MTU.
The MTU is not common currency in networking. On the wire, the only real issue is the MSS which is derived from MTU by subtracting the IP header and TCP header sizes (for the case of TCP). Now it is derived for the PKTSIZE by subtracting the IP header, the TCP header, and the MAC header sizes. So we should be all good and without the recurring 14 byte error in MTU's and MSS's.
Squashed commit of the following:
Trivial update to fix some spacing issues.
net/: Rename several macros containing _MTU to _PKTSIZE.
net/: Rename CONFIG_NET_SLIP_MTU to CONFIG_NET_SLIP_PKTSIZE and similarly for CONFIG_NET_TUN_MTU. These are not the MTU which does not include the size of the link layer header. These are the full size of the packet buffer memory (minus any GUARD bytes).
net/: Rename CONFIG_NET_6LOWPAN_MTU to CONFIG_NET_6LOWPAN_PKTSIZE and similarly for CONFIG_NET_TUN_MTU. These are not the MTU which does not include the size of the link layer header. These are the full size of the packet buffer memory (minus any GUARD bytes).
net/: Rename CONFIG_NET_ETH_MTU to CONFIG_NET_ETH_PKTSIZE. This is not the MTU which does not include the size of the link layer header. This is the full size of the packet buffer memory (minus any GUARD bytes).
net/: Rename the file d_mtu in the network driver structure to d_pktsize. That value saved there is not the MTU. The packetsize is the memory large enough to hold the maximum packet PLUS the size of the link layer header. The MTU does not include the link layer header.
Squashed commit of the following:
arch/arm/src/imxrt: Fix some first time compile issues.
arch/arm/src/imxrt: This brings the RTC implement to code complete but still untested.
arch/arm/src/imxrt: Add some RTC initialization logic.
arch/arm/src/imxrt: Flesh out most of the RTC driver lower half and LPSRTC support.
arch/arm/src/imxrt: Some inital, partial implementation of the HPRTC and LPSRTC.
arch/arm/src/imxrt: Add HPSRTC/HPRTC file framework (no logic, just skeleton files).
arch/arm/src/imxrt: Add HPRTC header file.
Some initial configuration logic for SNVS LPRTC and HP RTC.
arch/arm: Remove support for CONFIG_ARMV7M_CMNVECTOR. It is now the only vector support available. Also remove CONFIG_HAVE_CMNVECTOR. That no longer signifies anything."
arch/arm/src/stm32: This commit removes support for the dedicated vector handling from the STM32 architecture support. Only common vectors are now supported.
Squashed commit of the following:
Author: Gregory Nutt <gnutt@nuttx.org>
arch/arm/src/imxrt: Add cache operations to permit the Ethernet driver to work with the D-Cache enabled, at least in write-through mode.
Author: Jake Choy <jakearcx@gmail.com>
arch/arm/src/imxrt: The Ethernet driver is now functional, at least with the D-Cache off. The final fix was for the reference clock that needs to be forced to provide and input (SION).
Author: Gregory Nutt <gnutt@nuttx.org>
Fix trivial coding standard issue.
configs/imxrt1050-evk: Correct CONFIG_RAM_SIZE in all configurations (5Kb not 5Mb). I don't believe that CONFIG_RAM_SIZE is used at all in the i.MX RT so this is as grievous an error as it seems. Also enabled built-in applications in all NSH configurations.
arch/arm/src/imxrt/imxrt_enet.c: Trivial and cosmetic.
Cosmetic update to comments.
arch/arm/src/imxrt/imxrt_enet.c: Oops.. put the PHY interrupt init hooks in the wrong place. That is a one-time initialization but imxrt_initphy() is called on each ifup.
arch/arm/src/imxrt/imxrt_enet.c: Add hooks for board-specific PHY initialization (not yet needed, but there when needed).
Remove dangling white space at the end of lines
arch/arm/src/imxrt/Kconfig: Add option for board-specific PHY initialization.
configs/imxrt1050-evk/src: Add basic logic to support PHY interrupts. Incomplete.. needs additional support in imxrt_enet.c to 1. call to initialize PHY interrupt features, and 2. IOCTL commands to access PHY registers.
configs/imxrt1050-evk/README.txt: Trivial update.
configs/imxrt1050-evk/netnsh/defconfig: Disable LED support because pins conflict with PHY. Enable device statists. Enable NSH ifup and ifdown commmands
arch/arm/src/imxrt: Use macros in imxrt_periphclks.h vs. direct CCM CCGR accesses in Ethernet driver.
arch/arm/src/imxrt: Misc changes for a clean compilation of Ethernet deriver. configs/imxrt1050-evk/netnsh: Add an NSH configuration for testing Ethernet.
Author: Jake Choy <jakearcx@gmail.com>
arch/arm/src/imxrt: Initial WIP Ethernet driver.
arch/arm/src/imxrt: May eDMA channel linking a configuration option. Add support to select the DMA channel priority and pre-emption controls.
arch/arm/src/imxrt: Update some HowTo comments in the eDMA header file.
arch/arm/src/imxrt: Fix a logic error in parmater passing. Caller does not know actual channel number when setting up linked channel, only the channel handler.
arch/arm/src/imxrt: Fixes for clean eDMA driver build with Scatter/Gather enabled.
arch/arm/src/imxrt: Fixes for clean eDMA driver build with Scatter/Gather disabled.
arch/arm/src/imxrt: Add flags to DMA configuration to control transfer setup. Remove some user interfaces that are inconsistent with modular design.
arch/arm/src/imxrt: Update DMA channel interrupt handler.
arch/arm/src/imxrt: Add implementation of eDMA imxrt_dmach_start().
arch/arm/src/imxrt: Add implementation of eDMA imxrt_dmach_setup().
arch/arm/src/imxrt: Add eDMA imxrt_tcd_chanlink().
arch/arm/src/imxrt: Add eDMA imxrt_dmach_getcount; free allocated TCDs automatically when the DMA completes or is aborted.
arch/arm/src/imxrt: Add structures to support list of TCDs for Scatter/Gather DMA.
arch/arm/src/imxrt: Add eDMA imxrt_dmach_initconfig().
arch/arm/src/imxrt: Add eDMA imxrt_tcd_instantiate().
arch/arm/src/imxrt: Replacing some of the logic cloned from SAMv7 XDMAC with eDMA logic from NXP sample code. I am thinking that the eDMA is too complex to force into the same pattern as for other MCUs.
arch/arms/src/imxrt/imxrt_edma.c: Add support for in-memory TCDs.
arch/arm/src/imxrt/chip: Add an in-memory representation of the TCD in imxrt_edma.h
