There are not any major distributions that are still supporting kernels
older than 2.6.27 so we can remove many typedefs. The primary motivator
for this change is that kernel 5.0 is dropping support for timeval and
it would be ideal if the in-kernel time representation can
standardize on ktime_t, but 2.6.18 did not support the ktime
interface that was needed.
Signed-off-by: Shaun Ruffell <sruffell@sruffell.net>
These flags are direct mappings to the IRQF_[SHARED|DISABLED] flags and no
longer need to be kept separate.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Signed-off-by: Russ Meyerriecks <rmeyerriecks@digium.com>
The cards affected include the TE131/3, TE235/435, A4B, and A8B.
Update all PCIe cards' firmware to increase the incoming and outgoing TDM FIFOs
to 16ms. The FIFOs will only be filled to a depth equal to the driver's latency
setting (ie. 3ms default). The total system latency is not effected. The
firmware and driver now also report the maximum DMA transaction time when in
DEBUG mode to aid in determining if the system is experiencing long PCIe
transactions (ie. TLP completion timeouts).
Decreased the maximum latency to from 20 to 12ms
Signed-off-by: Russ Meyerriecks <rmeyerriecks@digium.com>
Some architectures, like arm, do not automatically pull in the definitions for
kzalloc and friends. This allows DAHDI to build on those platforms.
Originally reported to the asterisk-users mailing list here
http://lists.digium.com/pipermail/asterisk-users/2014-February/282338.html
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
Signed-off-by: Russ Meyerriecks <rmeyerriecks@digium.com>
When the card goes through a reset the PCIe link will be brought down. Some
slots will report this change upstream to the root port which will believe that
the card has been hotplugged out of the system.
This fixes cases on some systems where, during a firmware update, the card gets
removed from the system's logical PCI tree with messages like the following in
the kernel log:
pciehp 0000:00:1c.0:pcie04: Card not present on Slot(259)
pciehp 0000:00:1c.0:pcie04: Card present on Slot(259)
Internal-Issue-ID: DAHDI-1091
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
There are some platforms where the DMA operation to the host does not complete
within the required 50us. When this happens some versions of the firmware will
issue a retry and increment the retry field in the descriptor status word.
Now if this driver is configured in DEBUG mode, the presence of these retries
will be printed to the kernel log as a potential troubleshooting aide.
Internal-Issue-ID: DAHDI-1087
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
There are error conditions that the firmware can detect but cannot recover from
without help from the driver. When firmware detects these conditions the
DESC_IO_ERROR bit will be set in the descriptor header to signal that the driver
should reset the TDM engine on the card. Since this is not due to failure of the
host to service the interrupt in time, it does not make sense to increase
latency when these conditions are detected.
Internal-Issue-ID: DAHDI-1087
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Without this change it's hard to see what is actually running on the card when
the firmware in the flash doesn't match the reported version. This is a
debugging aide.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Allow certain older firmwares to delay the hard reset until a full power cycle.
This way we can "preload" newer firmware images, without requiring the user to
physically power off/on their machine.
Signed-off-by: Russ Meyerriecks <rmeyerriecks@digium.com>
Acked-by: Shaun Ruffell <sruffell@digium.com>
This makes the behavior of IRQ misses for these drivers behave the same as the
wcte12xp, wctdm24xxp, and wct4xxp drivers.
Previously irqmisses would never increase. The presence of underruns would still
show up in dmesg as latency bumps.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Signed-off-by: Russ Meyerriecks <rmeyerriecks@digium.com>
The wcxb library did not do actually use the max_latency member to limit the
maximum latency of the DMA engine.
Now it does.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Signed-off-by: Russ Meyerriecks <rmeyerriecks@digium.com>
The meta block contains specific version and checksum information and allows the
test tools to validate the image in the flash.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
This is a driver for the new line of analog cards that shares a common interface
with the TE133/TE134 and the TE435.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
