If the checksum coverage field in the UDPLITE header is the length
of the complete UDPLITE packet, the packet has full checksum coverage.
So fix the condition.
Always report that we support REPORT TARGET PORT GROUPS command.
Without clustering support we any way have only one group of permanently
active ports, but that gives us one more supported VMWare feature. ;)
Solaris' Comstar also reports it even when only one port is present.
Implement control over command reordering via options and control mode page.
It allows to bypass range checks between UNMAP and READ/WRITE commands,
which may introduce additional delays while waiting for UNMAP parameters.
READ and WRITE commands are always processed in safe order since their
range checks are almost free.
Add "readcache" and "writecache" LUN options to control default behavior.
Default values are "on". Disabling requires backend to support IO_DIRECT
and IO_SYNC flags respectively, or some alternatives.
Before this change UNMAP completely blocked other I/Os while running.
Now it blocks only colliding ones, slowing down others only due to ZFS
locks collisions.
Sponsored by: iXsystems, Inc.
Improve cache control support, including DPO/FUA flags and the mode page.
At this moment it works only for files and ZVOLs in device mode since BIOs
have no respective respective cache control flags (DPO/FUA).
- Fix XHCI driver for devices which have more than 15 physical root HUB
ports. The current bitmap array was too small to hold more than 16
bits and would at some point toggle the context size, which then would
trigger an enumeration fault and cause a fallback to the EHCI
companion controller, if any.
- Make sure we always set the maximum number of valid contexts.
- Set default cycle state in case of early interrupts.
In kern_linkat() and kern_renameat(), do not call namei(9) while
holding a write reference on the filesystem. Try to get write
reference in unblocked way after all vnodes are resolved; if failed,
drop all locks and retry after waiting for suspension end.
- Use NULL instead of 0 for fpcurthread.
- Note the quirk with the interrupt enabled state of the dna handler.
- Use just panic() instead of printf() and panic(). Print tid instead
of pid, the fpu state is per-thread.
MFC r271924:
Update and clarify comments. Remove the useless counter for impossible, but
seen in wild situation (on buggy hypervisors).
Diff reduction with kernel code: instruct the compiler that the data of
these types may be unaligned to their "normal" alignment and exercise
caution when accessing them.
PR: 194071
Approved by: re (gjb)
Instead of creating the full range of possible ports, try to figure
out the actual number of so-called "embedded jacks" which are present
when a USB MIDI device is attaching.
Approved by: re, gjb
Allow the PIC's IMR register to be read before ICW initialisation.
As of git submit e179f6914152eca9, the Linux kernel does a simple
probe of the PIC by writing a pattern to the IMR and then reading it
back, prior to the init sequence of ICW words.
The bhyve PIC emulation wasn't allowing the IMR to be read until
the ICW sequence was complete. This limitation isn't required so
relax the test.
With this change, Linux kernels 3.15-rc2 and later won't hang
on boot when calibrating the local APIC.
Approved by: re (gjb)
Enforce 4K as smallest indirect block size (previously the smallest
indirect block size was 1K but that was never used).
This makes some space estimates more accurate and uses less memory
for some data structures.
Illumos issue:
5141 zfs minimum indirect block size is 4K
Approved by: re (gjb)
Import HyperV Key-Value Pair (KVP) driver and daemon code by Microsoft,
many thanks for their continued support of FreeBSD.
While I'm there, also implement a new build knob, WITHOUT_HYPERV to
disable building and installing of the HyperV utilities when necessary.
The HyperV utilities are only built for i386 and amd64 targets.
Approved by: re (gjb)
Revert changes to shared code of the ixl and ixlv drivers to allow
for easier long-term maintainability.
Restrict the drivers to building on amd64 for now as it is
only tested on that 64bit architecture.
Just depend on PCI and neither INET nor INET6; also make sure we
can build individual drivers and they do not depend on each other
anymore.
Reviewed by: gnn, eric.joyner intel.com
PR: 193824
Approved by: re (gjb)
