AMD Family 17h CPUs have an internal network used to communicate between
the host CPU and the PSP and SMU coprocessors. It exposes a simple
32-bit register space.
Reviewed by: avg (no +1), mjoras, truckman
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D12217
This helps to detect when UDP hash types can be supported.
MFC after: 3 days
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D12177
The conditional compiling in the review request is removed, since
these IOCTLs will be available in stable/10 and stable/11.
Reviewed by: gallatin
MFC after: 1 week
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D12175
There is no big need to burn CPU if other side may be not there yet. For
example, the PLX hardware by default enables the NTB link up on reset, not
dependig on driver to do it. In case of Intel hardware this also reduces
race between MSI-X workaround negotiation and upper layers, using the same
scratchpad registers in different time.
MFC after: 12 days
t4_tom picks it up right away. This is less work than waiting for
the connection to be established before applying the setting.
MFC after: 2 weeks
Sponsored by: Chelsio Communications
In theory this allows to avoid one more expensive doorbell register read
later in some scenarios. But in practice it also significantly increases
packet rate on PLX hardware, that I can't explain yet, possibly work-
arounding some interrupt delays.
MFC after: 13 days
Sponsored by: iXsystems, Inc.
used by the TOE hardware for fully offloaded connections. The knob
affects new connections only.
MFC after: 2 weeks
Sponsored by: Chelsio Communications
If both nvme and cam are compiled as modules, nvme cannot be kldloaded
otherwise.
Reviewed by: imp
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
It allows application driver get initial link state without racing with
hardware interrupts, thanks to the context rmlock held here.
MFC after: 1 week
Sponsored by: iXsystems, Inc.
Those events may be reported as soon as callback is registered, if the link
is enabled by hardware or some other application.
While there, clean link_is_up variable on link down event.
MFC after: 1 week
install after full initialization, and another to disable the TCB
cache (T6+). The latter works as a tunable only.
Note that debug_flags are for debugging only and should not be set
normally.
MFC after: 1 week
Sponsored by: Chelsio Communications
This driver supports both NTB-to-NTB and NTB-to-Root Port modes (though
the second with predictable complications on hot-plug and reboot events).
I tested it with PEX 8717 and PEX 8733 chips, but expect it should work
with many other compatible ones too. It supports up to two NT bridges
per chip, each of which can have up to 2 64-bit or 4 32-bit memory windows,
6 or 12 scratchpad registers and 16 doorbells. There are also 4 DMA engines
in those chips, but they are not yet supported.
While there, rename Intel NTB driver from generic ntb_hw(4) to more specific
ntb_hw_intel(4), so now it is on par with this new ntb_hw_plx(4) driver and
alike to Linux naming.
MFC after: 2 weeks
Sponsored by: iXsystems, Inc.
Post-cold sleep instead of DELAY when waiting for firmware.
Convert softc mutex to an SX lock. Change all waits to sleeps
once interrupts are enabled (and it is safe to sleep).
Submitted by: Matt Macy <matt@mattmacy.io>
Sponsored by: Limelight Networks
Differential Revision: https://reviews.freebsd.org/D12101
These firmwares come from a pre-release snapshot. The final firmwares
in this Chelsio release cycle will likely be .61.0 or later and those
will be the next "long lived" firmwares in FreeBSD head and stable
branches. .59 is being provided in head (only) for wider test exposure.
Obtained from: Chelsio Communications
Sponsored by: Chelsio Communications
Tuffli had submitted a more thorough patch that I was unaware of when
I did my work and this brings in the bits I missed from that patch.
PR: 220267
Submitted by: Chuck Tuffli
This adds support in pass(4) for data to be described with a
scatter-gather list (sglist) to augment the existing (single) virtual
address.
Differential Revision: https://reviews.freebsd.org/D11361
Submitted by: Chuck Tuffli
Reviewed by: imp@, scottl@, kenm@
Provided a better estimate for the number of transactions that can be
pending at one time. This will be number of queues * number of
trackers / 4, as suggested by Jim Harris. This gives a better estimate
of the number of transactions that CAM should queue before applying
back pressure. This should be revisted when we have real multi-queue
support in CAM and the upper layers of the I/O stack.
Sponsored by: Netflix
creating hardware VIs.
This fixes a bad race on systems with hw.cxgbe.num_vis > 1.
Reported by: olivier@
MFC after: 1 week
Sponsored by: Chelsio Communications
according to the enabled interface capability bits. Also remove
some dead code, which tried to preserve already set contents of
E1000_WUC while that register is completely overwritten shortly
after in all cases.
This fixes interrupt storms on hardware using legacy level-triggered
interrupts, since doorbell processing could take time after interrupt
handler completion, that triggered extra interrupts in a loop.
MFC after: 2 weeks
Sponsored by: iXsystems, Inc.
Since the doorbell bit is already set when interrupt handler is called,
the event was not propagated to upper layer. It was working normally
because present code was not using masking actively, but that is going
to change.
MFC after: 2 weeks
Sponsored by: iXsystems, Inc.
This feature comes from the fact that we rely memory-backed md(4)
in our build process heavily. However, if the build goes haywire
the allocated resources (i.e. swap and memory-backed md(4)'s) need
to be purged. It is extremely useful to have ability to attach
arbitrary labels to each of the virtual disks so that they can
be identified and GC'ed if neecessary.
MFC after: 4 weeks
Differential Revision: https://reviews.freebsd.org/D10457
Tx power values can easily fit into uint8_t + only 8 bits are written
to registers; values may overflow only in case if ROM contains
malformed data (but limit is checked anyway).
Tested with RTL8188CUS, dev.rtwn.1.debug=0x2000 (no changes).
commit it to make initiazation less chatty in the normal case, and more useful
and informative when real debugging is turned on.
Reviewed by: ken (earlier version)
Sponsored by: Netflix
recieve descriptors for the igb(4) class of devices. This will
allow a better definition for maximum going forward. Some igb(4)
devices support more than the default 4K.
Reported by: Jason (j@nitrology.com)
Sponsored by: Limelight Networks
o Automomous Power State Transition
o Host Memory Buffer
o Timestamp
o Keep Alive Timer
o Host Controlled Thermal Management
o Non-Operational Power State Config
Also note that feature codes 0x78-0x7f are reserved for the NVMe
Management Interface.
Sponsored by: Netflix
