USB devio splits large transaction into 16 KiB buffers in scatter-gather
lists. Unfortunately, this mechanism seems unreliable most certainly because
of issue #4809 "DDE Linux struct page object aliasing".
Issue #5036
This commit adds support to initialize the timekeeping for
the Linux subsystem with the value from the RTC.
Only the seconds part of timespec64 is supported.
Issue genodelabs/genode#4957
On x86, DMA buffers are actually always mapped as cached. We should
therefore actually ask for a cached buffer in order to avoid confusion.
genodelabs/genode#5000
Remove 'usb_hid', 'usb_net', 'usb_modem' from dde_linux port. These
versions have been updated to Linux 6.1.20 which uses the 'linux.port'
file.
issue #4958
The driver is superseded by the USB network driver (usb_net) which also
contains MBIM support for LTE modems previously provided by this
driver.
issue #4958
The drivers uses the 'virt_linux' api and the current lx_kit
implementation. It is a drop-in replacement for the Linux 4.16.3 based
version.
issue #4958
NCM tries to batch TX packets using timeouts (500us) and does not send packets
before 3 packets are in the submit queue. Timeouts take milliseconds on
dde_linux which leads to delayed ACKs and poor performance for the RX case.
Therefore, we send small packets (<100 Bytes) immediately without batching (it
might be an ACK or last packet of a larger transfer).
issue #4958
The PinePhone Modems' CDC Ethernet Interface does not respond if RX/TX queue size
is greater 12 (experimentally determined), the default would be 60, meaning 60
RX Bulk URBs are sent at once to the device.
issue #4958
Several nightly network-related tests fail currently on sel4/pc because the
new e1000 NIC driver requires more capabilities. The "drivers nic" package
was already adapted to the new requirement but some tests fail to provide
enough caps to the corresponding sub system. This commit tries to fix all
remaining tests.
Ref #4923
* During a session-close, the device-specific usb task and driver data
gets freed. Part of it was the RPC data. To prevent use-after-free
turn it into a pointer and leave it on the stack of the caller thread
* During a device release, URBs discards, and reset operation the Linux task
might get blocked, and then a RPC caller task might return if the RPC
operation was marked as finished already, although it hasn't succeeded yet
* USB devio RESET has to be done before a device release to be effective
Fixgenodelabs/genode#4969
* Within flush_transfer of the USB session a given entrypoint gets
resetted, to be effective al related URBs need to be discarded first
* Discarding URBs shall be done in reverse order, like libusb is doing it,
where it warns about potential races otherwise
Ref genodelabs/genode#4969
* Allow support for kernel configurations without CONFIG_IRQ_DOMAIN_HIERARCHY
* Export `irq_domain` instantiated for driver-specific extensions of the irqchip
Fixgenodelabs/genode#4964
This commit extends the Lx_kit initialization function by passing in
a signal handler that is used to perform the normally occurring
scheduler execution and is a follow-up change for the decoupling
scheduler execution commit.
Instead of burying the signal handler in the 'Lx_kit::Scheduler'
object it is provided by the main object where the driver is free
to perform any additional step before or after executing the scheduler.
Issue #4927Fixes#4952
Since the wireless LAN driver is actually a 'Libc::Component' due to
its incorporation of the 'wpa_spplicant' application, we have to
intercept its construction because we have to initialize the Lx_kit
environment before any static ctors are executed. Most Linux initcalls
are implemented as ctors that will be otherwise implicitly executed
before the controll is given to us in 'Libc::Component::construct'.
Issue #4927.
