This isn't compiled in yet; so some code here duplicates what
is in the existing code. I'll migrate it all out in subsequent
commits.
Obtained from: b43 (definitions), bcm-v4 specifications website
This will eventually live in sys/dev/bhnd/, but I won't use that until
we migrate the whole driver over.
So, this'll live here for now.
Obtained from: Linux b43 (definitions)
When a file is opened write-only and a partial block was written,
buffered I/O would try and read the whole block in. This would
result in a hung thread, since there was no open (fuse filehandle)
that allowed reading. This patch avoids the problem by forcing
DIRECT_IO for this case.
It also sets DIRECT_IO when the file system specifies the FN_DIRECTIO
flag in its reply to the open.
Tested by: nishida@asusa.net, freebsd@moosefs.com
PR: 194293, 206238
MFC after: 2 weeks
bwn_sqrt() is in the PHY-LP code but is also needed by the upcoming
PHY-N support.
The other two routines are used by the PHY-N code.
The next commit will introduce it into the compile and pull bwn_sqrt()
out of the PHY-LP source.
Currently, Application Processors (non-boot CPUs) are started by
MD code at SI_SUB_CPU, but they are kept waiting in a "pen" until
SI_SUB_SMP at which point they are released to run kernel threads.
SI_SUB_SMP is one of the last SYSINIT levels, so APs don't enter
the scheduler and start running threads until fairly late in the
boot.
This change moves SI_SUB_SMP up to just before software interrupt
threads are created allowing the APs to start executing kernel
threads much sooner (before any devices are probed). This allows
several initialization routines that need to perform initialization
on all CPUs to now perform that initialization in one step rather
than having to defer the AP initialization to a second SYSINIT run
at SI_SUB_SMP. It also permits all CPUs to be available for
handling interrupts before any devices are probed.
This last feature fixes a problem on with interrupt vector exhaustion.
Specifically, in the old model all device interrupts were routed
onto the boot CPU during boot. Later after the APs were released at
SI_SUB_SMP, interrupts were redistributed across all CPUs.
However, several drivers for multiqueue hardware allocate N interrupts
per CPU in the system. In a system with many CPUs, just a few drivers
doing this could exhaust the available pool of interrupt vectors on
the boot CPU as each driver was allocating N * mp_ncpu vectors on the
boot CPU. Now, drivers will allocate interrupts on their desired CPUs
during boot meaning that only N interrupts are allocated from the boot
CPU instead of N * mp_ncpu.
Some other bits of code can also be simplified as smp_started is
now true much earlier and will now always be true for these bits of
code. This removes the need to treat the single-CPU boot environment
as a special case.
As a transition aid, the new behavior is available under a new kernel
option (EARLY_AP_STARTUP). This will allow the option to be turned off
if need be during initial testing. I plan to enable this on x86 by
default in a followup commit in the next few days and to have all
platforms moved over before 11.0. Once the transition is complete,
the option will be removed along with the !EARLY_AP_STARTUP code.
These changes have only been tested on x86. Other platform maintainers
are encouraged to port their architectures over as well. The main
things to check for are any uses of smp_started in MD code that can be
simplified and SI_SUB_SMP SYSINITs in MD code that can be removed in
the EARLY_AP_STARTUP case (e.g. the interrupt shuffling).
PR: kern/199321
Reviewed by: markj, gnn, kib
Sponsored by: Netflix
again hopefully.
Rather than blindly removing a supposedly unused variable as reported by
the Clang Static Analyzer, inspect the code and hide them with proper
#ifdefs as they are used in certain conditional parts of the code.
Since r276367 added the virtio_mmio support vtnet_modevent() gets called twice.
This resulted in a memory leak during load and a panic on unload.
Count the loads so we only initialise once (just like cxgbe(4)), and only clean
up in the final unload.
PR: 209428
Submitted by: novel@FreeBSD.org
MFC after: 1 week
Move legacy privilege masks near to their only user.
Move Huntington definitions to the top of hunt_impl.h to prepare
for moving the remaining EF10 definitions to ef10_impl.h.
Submitted by: Andy Moreton <amoreton at solarflare.com>
Sponsored by: Solarflare Communications, Inc.
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D6343
Falcon support has been removed, so this code only supports Siena.
Submitted by: Andy Moreton <amoreton at solarflare.com>
Sponsored by: Solarflare Communications, Inc.
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D6342
* Add the siba bus phy/mac/bandwidth clock definitions (TGSLOW*)
* Add the PHY-N register gateway (BWN_PHY_N())
* Add the PHY-N TX phystat1 register - we need to actually fill out
more of the PHY encoding information when we assemble a frame.
* Various ancillary stuff
Nothing uses this yet, but I do have CCK/OFDM somewhat working
in 2GHz mode on a PHY-N device.
Obtained from: b43 (definitions)
These firmwares were obtained from the "Chelsio T5/T4 Unified Wire
v2.12.0.3 for Linux" release. Changes since 1.14.4.0 (which is the
firmware in -STABLE branches) are in the "Release Notes" accompanying
the Unified Wire release and are copy-pasted here as well.
22.1. T5 Firmware
+++++++++++++++++++++++++++++++++
Version : 1.15.37.0
Date : 04/27/2016
================================================================================
FIXES
-----
BASE:
- Fixed an issue in FW_RSS_VI_CONFIG_CMD handling where the default ingress
queue was ignored.
- Fixed an issue where adapter failed to load fw by adjusting DRAM frequency.
- Fixed an issue in watchdog which was causing VM bring-up failure after reboot.
- Fixed 40G link failures with some switches when auto-negotiation enabled.
- Fixed to improve on link bring-up time.
- Per port buffer groups size doubled to improve performance.
- Fixed an issue where bogus d3hot bits were set causing traffic stall.
- Fixed an issue where sometimes adapter was not seen after reboot.
- Fixed an issue where iWARP was crashing in conjunction with traffic management.
- Fixed an issue where link failed to come up after removing twinax cable and
inserting optical module.
ETH
- Fixed a link flap issue on T580-CR.
OFLD
- Fixed a potential iSCSI data corruption issue by disabling RxFragEn flag.
FOiSCSI
- Fixed an issue in recovery path where connection was getting closed before
recovery processing was done.
- Fixed an issue in TCP port reuse.
- Fixed an issue in recovery path when large number (>64) of iSCSI connections
were in use.
- Returned ENETUNREACH if IP was not been provisioned yet and driver tried to
use given inerface.
- Fixed an issue where fw was sending ENETUNREACH event for normal tcp
disconnection.
DCBX
- Fixed an issue where iscsi tlv is sent incorrectly to host. (DCBX CEE)
- Fixed an issue where apply bit set for APP id was affecting the ETS and PFC
settings.(DCBX IEEE)
- Fixed an issue where app priority values are not handled correctly in fw.
(DCBX IEEE)
- Fixed an issue where enable/disable dcbx can cause crash. (DCBX CEE,DCBX IEEE)
FOFCoE
- Removed BB6 support.
ENHANCEMENTS
------------
BASE:
- Added new interface to program DCA settings in SGE contexts; allow 32-byte
IQE size
- Added PTP interface fw_ptp_ts to support PTP Frequeny and Offset adjustment.
- Added MPS raw interface.
ETH:
- New mailbox command FW_DCB_IEEE_CMD api added for IEEE dcbx.
OFLD:
- WR opcode is returned to host in cqe error response.
22.2. T4 Firmware
+++++++++++++++++
Version : 1.15.37.0
Date : 04/27/2016
================================================================================
FIXES
-----
BASE:
- Fixed an issue in FW_RSS_VI_CONFIG_CMD handling where default ingress queue
was ignored.
- Fixed an issue in watchdog which was causing VM bring-up failure after reboot.
- Per port buffer groups size doubled to improve performance.
- Fixed an issue where iWARP was crashing in conjunction with traffic management.
FOiSCSI:
- Fixed an issue in recovery path where connection was getting closed before
recovery processing was done.
- Fixed an issue in TCP port reuse.
- Fixed an issue in recovery path when large number (>64) of iSCSI connections
were in use.
- Returned ENETUNREACH if IP had not been provisioned yet and driver tried to
use given inerface.
DCBX
- Fixed an issue where iscsi tlv is sent incorrectly to host.(DCBX CEE)
- Fixed an issue where enable/disable dcbx can cause crash in firmware.(DCBX CEE)
FOiSCSI
- Fixes an issue where fw was sending ENETUNREACH event for normal tcp
disconnection.
FOFCoE
- Removed BB6 support.
ENHANCEMENTS
------------
BASE:
- Added MPS raw interface.
ETH:
- New mailbox command FW_DCB_IEEE_CMD api added for IEEE dcbx.
================================================================================
Obtained from: Chelsio Communications
MFC after: 6 weeks
Relnotes: yes
Sponsored by: Chelsio Communications
disabled, however when we enable it it will default to assume memory is
not cache-coherent, unless either the tag was created or the parent was
marked as cache-coherent.
Obtained from: ABT Systems Ltd
Relnotes: yes
Sponsored by: The FreeBSD Foundation
