originally inspired by the Solaris vmem detailed in the proceedings
of usenix 2001. The NetBSD version was heavily refactored for bugs
and simplicity.
- Use this resource allocator to allocate the buffer and transient maps.
Buffer cache defrags are reduced by 25% when used by filesystems with
mixed block sizes. Ultimately this may permit dynamic buffer cache
sizing on low KVA machines.
Discussed with: alc, kib, attilio
Tested by: pho
Sponsored by: EMC / Isilon Storage Division
function name of its corresponding DTrace probes. These descriptions may
contain whitespace, but probe names cannot, so just replace any whitespace
with underscores when creating probes.
MFC after: 1 week
bug where a PCI device would be powered down if it failed to probe, but
not when its driver was detached (e.g. via kldunload).
- Add a new helper method resource_list_release_active() which forcefully
releases any active resources of a specified type from a resource list.
- Add a bus_child_detached method for the PCI bus driver which forces any
active resources to be released (and whines to the console if it finds
any) and then powers the device down.
- Call pci_child_detached() if we fail to probe a device when a driver
is kldloaded. This isn't perfect but can avoid leaking resources
from a probe() routine in the kldload case.
Reviewed by: imp, brooks
MFC after: 1 month
past a trapframe.
Use this macro in exception_exit as it is the function the unwinder enters
as the functions that store the frame setting lr to point to it.
device names "md" or "md[0-9]*" and a "file" option are specified in
/etc/fstab like this:
md none swap sw,file=/swap.bin 0 0
- Add GBDE/GELI encrypted swap space specification support, which
rc.d/encswap supported. The /etc/fstab lines are like the following:
/dev/ada1p1.bde none swap sw 0 0
/dev/ada1p2.eli none swap sw 0 0
.eli devices accepts aalgo, ealgo, keylen, and sectorsize as options.
swapctl(8) can understand an encrypted device in the command line
like this:
# swapctl -a /dev/ada2p1.bde
- "-L" flag is added to support "late" option to defer swapon until
rc.d/mountlate runs.
- rc.d script change:
rc.d/encswap -> removed
rc.d/addswap -> just display a warning message if $swapfile is defined
rc.d/swap1 -> renamed to rc.d/swap
rc.d/swaplate -> newly added to support "late" option
These changes alleviate a race condition between device creation/removal
and swapon/swapoff.
MFC after: 1 week
Reviewed by: wblock (manual page)
a new firmware command.
NVMe controllers may support up to 7 firmware slots for storing of
different firmware revisions. This new firmware command supports
firmware replacement (i.e. firmware download) with or without immediate
activation, or activation of a previously stored firmware image. It
also supports selection of the firmware slot during replacement
operations, using IDENTIFY information from the controller to
check that the specified slot is valid.
Newly activated firmware does not take effect until the new controller
reset, either via a reboot or separate 'nvmecontrol reset' command to the
same controller.
Submitted by: Joe Golio <joseph.golio@emc.com>
Obtained from: EMC / Isilon Storage Division
MFC after: 3 days
This includes pretty printers for all of the standard NVMe log pages
(Error, SMART/Health, Firmware), as well as hex output for non-standard
or vendor-specific log pages.
Submitted by: Joe Golio <joseph.golio@emc.com>
Obtained from: EMC / Isilon Storage Division
MFC after: 3 days
commands.
Also improve the checking of device node names, so that better error
messages are displayed when incorrect names are specified.
Sponsored by: Intel
MFC after: 3 days
max transfer size. This guards against rogue commands coming in from
userspace.
Also add KASSERTS for the virtual address and unmapped bio cases, if the
transfer size exceeds the controller's max transfer size.
Sponsored by: Intel
MFC after: 3 days
Also allow admin commands to transfer up to this maximum I/O size, rather
than the artificial limit previously imposed. The larger I/O size is very
beneficial for upcoming firmware download support. This has the added
benefit of simplifying the code since both admin and I/O commands now use
the same maximum I/O size.
Sponsored by: Intel
MFC after: 3 days
usage message for each nvmecontrol command. This helps reduce some code
clutter both now and for future commits which will add logpage and
firmware support to nvmecontrol(8).
Also move helper function prototypes to the end of the header file, after
the per-command functions.
Sponsored by: Intel
MFC after: 3 days
by treating it as UDMA.
This fixes a problem introduced in r249933/r249939, where CAM sends
ATA_DSM_TRIM to SATA devices using ATA_PASSTHROUGH_16. scsi_ata_trim()
sets protocol as DMA (not UDMA) which is for multi-word DMA, even
though no such mode is selected for the device. isci(4) would fail
these commands which is the correct behavior but not consistent with
other HBAs, namely LSI's.
smh@ did some further testing on an LSI controller, which rejected
ATA_PASSTHROUGH_16 commands with mode=UDMA_OUT, even though only
a UDMA mode was selected on the device. So this precludes adding
any kind of mode detection in CAM to determine which mode to use on
a per-device basis.
Sponsored by: Intel
Discussed with: scottl, smh
Reported by: scottl
Tested by: scottl
MFC after: 3 days
support cache flush and write barrier commands.
sys/dev/xen/blkfront/block.h:
Add per-command flag that specifies that the I/O queue must
be frozen after this command is dispatched. This is used
to implement "single-stepping".
Remove the unused per-command flag that indicates a polled
command.
Add block device instance flags to record backend features.
Add a block device instance flag to indicate the I/O queue
is frozen until all outstanding I/O completes.
Enhance the queue API to allow the number of elements in a
queue to be interrogated.
Prefer "inline" to "__inline".
sys/dev/xen/blkfront/blkfront.c:
Formalize queue freeze semantics by adding methods for both
global and command-associated queue freezing.
Provide mechanism to freeze the I/O queue until all outstanding
I/O completes. Use this to implement barrier semantics
(BIO_ORDERED) when the backend does not support
BLKIF_OP_WRITE_BARRIER commands.
Implement BIO_FLUSH as either a BLKIF_OP_FLUSH_DISKCACHE
command or a 0 byte write barrier. Currently, all publicly
available backends perform a diskcache flush when processing
barrier commands, and this frontend behavior matches what
is done in Linux.
Simplify code by using new queue length API.
Report backend features during device attach and via sysctl.
Submitted by: Roger Pau Monné
Submitted by: gibbs (Merge with new driver queue API, sysctl support)
The AHB code:
* hard coded the AR9130 device id;
* assumes a 4k flash calibration space.
This code now extends this:
* hint.ath.X.eepromsize now overrides the eeprom range, instead of 4k
* hint.ath.X.device_id and hint.ath.X.vendor_id can now be overridden.
Tested:
* AR9330 board (Carambola 2)
When building AR933x test images, I'd like to only build only the ar9300
HAL. To do this, it needs to supply an RF linker entry or it won't compile.
Tested:
* AR933x test builds
In BSD, fgetln() available in libc but in Illumos the Solaris port had to
include it internally. It also seems to have caused problems [1].
Aid portability by using getline() instead.
Reference:
https://www.illumos.org/issues/3820 [1]
Submitted by: Johann 'Myrkraverk' Oskarsson <johann@myrkraverk.com>
Reviewed by: dds
MFC after: 2 weeks
Not only this is a bit cleaner, it allows multiple instances of hostapd to be
running on the system host, useful for simultaneous dual-band WiFi.
This is similar to ifconfig_wlanX="WPA" but it uses /etc/hostapd-wlanX.conf.
Compatibility with hostapd_enable=YES/NO was kept.
Reviewed by: adrian
