Make SYNCHRONIZE CACHE work with LUNs backed by device files (as opposed
to regular files, which already worked fine). With this change, it's no
longer neccessary to use "ctladm realsync off" workaround.
adrian [Fri, 5 Apr 2013 23:41:38 +0000 (23:41 +0000)]
Add blacklist entries for Atheros bluetooth device IDs that are known to
need firmware before they will re-attach as correctly functioning bluetooth
devices.
Reviewed by: maksim
Obtained from: Linux ath3k device driver
Notify CAM on state* change to a logical volume not status. This resolves
the issues reported regarding camcontrol devlist not showing the rebuild
states of volumes unless an explicit camcontrol rescan was executed.
adrian [Fri, 5 Apr 2013 09:06:39 +0000 (09:06 +0000)]
Add a new TX power field - it's inteded to be used where low TX power
is configured for higher rates (lower than max) but higher TX power
is configured for the lower rates, above the configured cap, to improve
long distance behaviour.
adrian [Fri, 5 Apr 2013 01:38:13 +0000 (01:38 +0000)]
Add AP121 ethernet / switch PHY support.
* arge0 is MII
* arge1 is GMII
* the MDIO bus is on arge1, not arge0
* the default switch config is to have ports 0-3 as the switch group,
with port 4 being an external PHY dedicated to arge0 (ie, 'cpu' port.)
Whilst I'm here, remove unused bits and pieces from the config.
Tested:
* AP121, ping on both arge0 and arge1
* Tested switch port detection using etherswitchcfg
adrian [Fri, 5 Apr 2013 00:26:06 +0000 (00:26 +0000)]
Implement the AR933x interrupt driven UART code.
* Enable RX and host interrupts during bus probe/attach
* Disable all interrupts (+ host ISR) during bus detach
* Enable TX DONE interrupt only when we start transmitting; clear it when
we're done.
* The RX/TX FIFO depth is still conjecture on my part. I'll fix this
shortly.
* The TX FIFO interrupt isn't an "empty" interrupt, it's an "almost empty"
interrupt. Sigh. So..
* .. in ar933x_bus_transmit(), wait for the FIFO to drain before
continuing.
I dislike having to wait for the FIFO to drain, alas.
Tested:
* Atheros AP121 board, AR9331 SoC.
TODO:
* RX/TX overflow, RX error, BREAK support, etc.
* Figure out the true RX/TX FIFO depth.
MFprojects/camlock:
r249017:
Some cosmetic things:
- Unify device to target insertion inside xpt_alloc_device() instead of
duplicating it three times.
- Remove extra checks for empty lists of devices and targets on release
since zero refcount check also implies it.
- Reformat code to reduce indentation.
r249103:
- Add lock assertions to every point where reference counters are modified.
- When reference counters are reaching zero, add assertions that there are
no children items left.
- Add a bit more locking to the xptpdperiphtraverse().
MFprojects/camlock r248928:
Move CAM_DEBUG_CDB messages from the point of queuing to the point of
sending to SIM. That allows to inspect real requests execution order,
respecting priorities, freezing, etc.
Since the CTL version in FreeBSD does not support High Availability,
ctl_is_single should always be set to 1. Make it so. Previously
it was always 0, because ctl_isc_start() never got to run.
Remove a comment about devices being able to specify multiple interrupt
types. This is no longer the case because interrupt types now have to map to
an ithread priority (c.f. intr_priority()).
adrian [Thu, 4 Apr 2013 10:46:33 +0000 (10:46 +0000)]
Implement AR933x polled IO uart bus code.
This implements the bus transmit/receive/sigchg/ipend methods with
a polled interrupt handler (ipend) rather than enabling hardware
interrupts.
The FIFO is faked at 16 bytes deep for now, just so the transmit
IO side doesn't suck too bad (the callout frequency limits how quickly
IO is flushed to the sender, rather than scheduling the callout more
frequently whilst there's active TX. But I digress.)
adrian [Thu, 4 Apr 2013 08:21:56 +0000 (08:21 +0000)]
Fix the busdma logic to work with EDMA chipsets when using bounce
buffers (ie, >4GB on amd64.)
The underlying problem was that PREREAD doesn't sync the mbuf
with the DMA memory (ie, bounce buffer), so the bounce buffer may
have had stale information. Thus it was always considering the
buffer completed and things just went off the rails.
This change does the following:
* Make ath_rx_pkt() always consume the mbuf somehow; it no longer
passes error mbufs (eg CRC errors, crypt errors, etc) back up
to the RX path to recycle. This means that a new mbuf is always
allocated each time, but it's cleaner.
* Push the RX buffer map/unmap to occur in the RX path, not
ath_rx_pkt(). Thus, ath_rx_pkt() now assumes (a) it has to consume
the mbuf somehow, and (b) that it's already been unmapped and
synced.
* For the legacy path, the descriptor isn't mapped, it comes out of
coherent, DMA memory anyway. So leave it there.
* For the EDMA path, the RX descriptor has to be cleared before
its passed to the hardware, so that when we check with
a POSTREAD sync, we actually get either a blank (not finished)
or a filled out descriptor (finished.) Otherwise we get stale
data in the DMA memory.
* .. so, for EDMA RX path, we need PREREAD|PREWRITE to sync the
data -> DMA memory, then POSTREAD|POSTWRITE to finish syncing
the DMA memory -> data.
* Whilst we're here, make sure that in EDMA buffer setup (ie,
bzero'ing the descriptor part) is done before the mbuf is
map/synched.
NOTE: there's been a lot of commits besides this one with regards to
tidying up the busdma handling in ath(4). Please check the recent
commit history.
Discussed with and thanks to: scottl
Tested:
* AR5416 (non-EDMA) on i386, with the DMA tag for the driver
set to 2^^30, not 2^^32, STA
Remove all legacy ATA code parts, not used since options ATA_CAM enabled in
most kernels before FreeBSD 9.0. Remove such modules and respective kernel
options: atadisk, ataraid, atapicd, atapifd, atapist, atapicam. Remove the
atacontrol utility and some man pages. Remove useless now options ATA_CAM.
Correct the multicast handling in the E1000 drivers as was
done in ixgbe, thanks to Mike Karels for this fix. When exiting
promiscuous mode MPE bit was being unconditionally cleared, this
should not be done if we are in MAX multicast groups.
Allow boothowto and bootverbose to be set via kernel options, which
is useful on architectures that are unable to rely on a boot loader
to pass configuration variables to the kernel.
The code in clear_remove() and clear_inodedeps() skips one entry
in the pagedep and inodedep hash tables. An entry in the table is
skipped because 'pagedep_hash' and 'inodedep_hash' hold the size
of the hash tables - 1.
The chance that this would have any operational failure is extremely
unlikely. These funtions only need to find a single entry and are
only called when there are too many entries. The chance that they
would fail because all the entries are on the single skipped hash
chain are remote.
Introduce an explicit close of the output descriptor so that work done
on close is accounted for in the summary output triggered at exit
(implicit close()s occur after atexit() hooks).
This is useful because some devices such as cfi(4) may perform
signficant work after a close occurs (e.g. erasing and rewriting a
block of flash).
Since ATA_CAM mode has no implemented support for serializing access to the
different ATA channels, required for acard and pc98 ATA controllers, block
access to second channels of both, hoping that one working channel is better
then none. I have an idea how that support could be implemented, but I have
no hardware to work on that.
spa_open_common: fix argument to zvol_create_minors
Prior to r248571 spa_open was always called with a bare pool name,
but now it is called with a dataset name instead (spa_lookup handles
that).
So, when a ZFS root is mounted spa_open is called with a name of a root
dataset, which can very well be different from the pool name.
But zvol_create_minors should be called with the pool name, because it
performs a recursive traversal of all datasets under the name to find
all those that are volumes.
Replace the remaining uses of vm_radix_node_page() by vm_radix_isleaf() and
vm_radix_topage(). This transformation eliminates some unnecessary
conditional branches from the inner loops of vm_radix_insert(),
vm_radix_lookup{,_ge,_le}(), and vm_radix_remove().
Simplify the control flow of vm_radix_lookup_{ge,le}().
sh: Write as much into the heredoc pipe as possible, to avoid forking.
Use non-blocking I/O to write as much as the pipe will accept (often 64K,
but it can be as little as 4K), avoiding the need for the ugly PIPESIZE
constant. If PIPESIZE was set too high, a deadlock would occur.
Don't directly dereference userland pointer; instead use kernel pointer
copied in from userspace. This fixes instant panic when creating CTL LUN
on sparc64. Not a security problem, since the API is root-only.
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