- Add some additional config block bits for the i82558/i82559.
- Change the config block template to only fill in the must-be-one
reserved bits, leave fxp_init() to fill in all the important things.
- On the i82558/i82559, we can use "Receive Long Frames" rather than
"Save Bad Frames" to support the VLAN MTU.
- Use 802.3x flow control on the i82558/i82559. This is all handled
transparently by the hardware. When in promiscuous mode, allow
wire-watchers to see the flow control frames.
- Use the Extended TxCB format on the i82558/i82559. This places two
Transmit Buffer Descriptors directly in the TxCB, which should cover
the vast majority of packets transmitted. This saves PCI transactions
that would otherwise be required to fetch the TBD list.
With the tansmit queue length changes from yesterday, this gets us up to
11.5MB/s TCP transmit speed, out of an absolute maximum of 12MB/s possible
on a 100Mb/s link.
This fixes a `hang' on shutdown when the `Synchronise Cache' command
is sent to a disk. (It uses polled mode because it is called from inside
a shutdown hook).
interrupt priority, to avoid allocating additional mbufs on
splsched(). Move some other misc bits out of splched()-guarded
section. This should make the code a bit more friendly wrt e.g.
clock interrupts. Sligh performance improvement was observed with
this change (like 1-2% on slow machine), even.
This also fixes ancient kern/2478 by Bill Sommerfeld.
keeps us from stomping on ourselves.
Say we're in the middle of re-evaluating a loop (and sleeping) when a
command completes, or a timer refires, and this *other* thread decides
*it* wants to start re-evaluating the loop. Bad news.
We have to be a bit careful- if we can't acquire the MBOX semaphore at
interrupt level, we will simulate a host interface error. This is a bit
of a temp workaround. There's some work underway driven by a NetBSD
commercial user that will try and force most mailbox stuff into a
part A/part B interrupt driven model.
0xfe on my gateway 2000 circa 1993). That should not affect broken controllers
that choke on the kbc_auxtest, because for those the write/read test succeeds.
Although WEP is used in Windows also in an old firm,
because WEP is processed by the windows driver side.
If Prism2 Firm version is more than 0.8.3, WEP does work without 'Promiscuous ON'.
Roaming mode can change value into 'firm mode' and disable.
Authentication mode can change into 'Open System authentication'
and 'Shared Key Authentication' with Prism2 chip.
wi_get_id() was introduced in order that chip might judge automatically
whether it is Prism2 chip. Therefore, a pp_prism2 entry in
"struct wi_pcmcia_product" became unnecessary.
done when the command-in-progress bit has been cleared. The 1ms
time that is mentioned also seems wrong; 20,000us is not enough
on at least one machine. So, do a delay(100000) in ex_reset.
Fortunately, this function is only called when the card is
attached or when hardware failure is suspected.
While here, only mask one 1 bit in the 'reset hack' case.
This is based on amiga's siop driver, but converted to use
bus_space(9) functions and modified to fit bus_dma(9) framework.
Currently tested on NetBSD/arc with jazzio 53c710 SCSI,
which really requires bus_dma(9) functions :-)
Sync transfers and disconnect/reconnect are also working.
TODO:
- Test under more heavy load
- Clean up osiop_checkintr() hander
- Reorganize command queue and sync negotiation handling more suitable
for thorpej-scsipi mid-layer
- Re-think defered interrupt handling for amiga
reasonable transmit/receive buffer count.
This is needed for e.g. SKNET adapters, which use top 30 bytes of 16KB
memory to map registers and PROM and hence not all the memory is
available for buffers.
to 16 or 4 (depending on capabilities of adapter), as it was before
thorpej_scsipi integration
Waiting feedback to known whenever the problem with openings set to AHC_SCB_MAX
existed before.
- Add (missed)powerhook_disestablish() in ex_detach().
- Sync with below. Original commit log message:
Add new powerhook argument values, PWR_SOFTSUSPEND, PWR_SOFTSTANDBY and
PWR_SOFTRESUME. Apm calls powerhook with the values in normal interrupt
priority level while others are protected with splhigh().
This is a completely rewritten scsipi_xfer execution engine, and the
associated changes to HBA drivers. Overview of changes & features:
- All xfers are queued in the mid-layer, rather than doing so in an
ad-hoc fashion in individual adapter drivers.
- Adapter/channel resource management in the mid-layer, avoids even trying
to start running an xfer if the adapter/channel doesn't have the resources.
- Better communication between the mid-layer and the adapters.
- Asynchronous event notification mechanism from adapter to mid-layer and
peripherals.
- Better peripheral queue management: freeze/thaw, sorted requeueing during
recovery, etc.
- Clean separation of peripherals, adapters, and adapter channels (no more
scsipi_link).
- Kernel thread for each scsipi_channel makes error recovery much easier
(no more dealing with interrupt context when recovering from an error).
- Mid-layer support for tagged queueing: commands can have the tag type
set explicitly, tag IDs are allocated in the mid-layer (thus eliminating
the need to use buggy tag ID allocation schemes in many adapter drivers).
- support for QUEUE FULL and CHECK CONDITION status in mid-layer; the command
will be requeued, or a REQUEST SENSE will be sent as appropriate.
Just before the merge syssrc has been tagged with thorpej_scsipi_beforemerge
a happy code sweep (in the kernel!) and constified a random selection of
kernel objects. This changed the alignment of the previously-aligned-by-
accident seqprog array, and exposed a lurking bug. I can't decide if this
is good or bad.
saves about 2.2MB under /usr/include/dev/. Discussed on tech-kern@
recently.
I HOPE to get the list right. The headers I left in are ones
used for MI tools and those whose usage I discovered by grep over tree sources.
Feel free to put needed includes back in if you encounter anything which
should not be removed from lists.
itojun