- Introduce "ha_shared" port option, which being set to "on" moves the
port into separate port group, shared between HA nodes. This allows to
better handle cases when iSCSI portals are bound to CARP address that can
dynamically move between nodes. Some initiators (at least VMware) don't
detect that after iSCSI reconnect they've attached to different SCSI port
from different port group, that totally breakes ALUA status parsing.
In theory, I believe, it should be enough to have different iSCSI portal
group tags on different nodes to make initiators detect this condition,
but it seems like VMware ignores those values, and even full LUN retaste
forced by UA does not help.
- Make CTL report up to three port groups: 1 -- non-HA mode or ports
with "ha_shared" option set, 2 -- HA node 1, 3 -- HA node 2.
- Report Transitioning state for all port groups when HA interlink is
connected, but neither of nodes is primary for the LUN.
MFC after: 2 weeks
should be used by TCP for sure in its cleanup of the IN-PCB (will be coming shortly).
Sponsored by: Netflix Inc.
Differential Revision: https://reviews.freebsd.org/D4076
work with the upcoming async-drain functionality. Tests can be added
to the tests directory and then the framework can be used to launch
those tests.
MFC after: 1 month
Sponsored by: Netflix Inc.
Differential Revision: https://reviews.freebsd.org/D1755
If you attempt to set a pcpu limit that is higher than
110% using rctl (for instance, you want a jail to be
able to use 2 cores on your system so you set pcpu to
200%) the thing you are trying to limit becomes unthrottled.
PR: 189870
Submitted by: dustinwenz@ebureau.com
Reviewed by: trasz
MFC after: 1 week
Allow manipulation with PSR_A bit on ARMv6+.
Remove declaration of unused functions.
This effectively enables asynchronous aborts on early bootstrap stage,
which previously was not enabled due to an error in enable_interrupts().
PR: 201434
Reported by: Gregory Soutade <soutade at gmail.com>
Approved by: kib (mentor)
function which checks an address for privileged (PL1) write access.
The function is inlined so it does not bring any cost, but makes
function set for checking privileged access complete.
Approved by: kib (mentor)
from Mellanox Technologies. The current driver supports ethernet
speeds up to and including 100 GBit/s. Infiniband support will be
done later.
The code added is not compiled by default, which will be done by a
separate commit.
Sponsored by: Mellanox Technologies
MFC after: 2 weeks
little-endian configuration for 64-bit variant is supported.
Reviewed by: mmel
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D4113
- boot page table is not allocated in data section, so must be
cleared before use
- map only one section (1 MB) for SOCDEV mapping (*)
- DSB must be used for ensuring of finishing TLB operations
- Invalidate BTB when appropriate
PR: 198360
Reported by: Daisuke Aoyama <aoyama at peach.ne.jp> (*)
Approved by: kib (mentor)
the TOE for LAN operation. It is possible to set this to other values
(cluster for networks with little loss and really tight RTTs, and wan
for relatively large RTTs and/or lossy networks) depending on the
environment in which the TOE is being used.
None of this affects plain NIC operation in any way.
MFC after: 1 week
- Split urtwn_tx_start() into urtwn_tx_data() and urtwn_tx_start()
(the last will be used for beacon updates / raw xmit path).
- Remove unneeded code from _urtwn_getbuf().
- Use CCK11 for data frames in 11b mode.
- Send EAPOL frames at 1 Mbps.
- Reduce code duplication in urtwn_tx_data().
- Fix sequence numbering.
- Add IEEE80211_RADIOTAP_F_WEP flag for encrypted frames.
- Check URTWN_RUNNING flag under lock.
Tested with RTL8188EU, STA mode.
Reviewed by: kevlo
Approved by: adrian (mentor)
Differential Revision: https://reviews.freebsd.org/D4017
as of r288992 use it to manage the CCNT.
Use the CNNT for get_cyclecount() instead of binuptime() when device pmu
is compiled in; if it fails to attach, fall back to the former method.
Enable by default for the BeagleBoneBlack configuration.
Optained from: Cambridge/L41
Sponsored by: DARPA/AFRL
Reviewed by: andrew
Differential Revision: https://reviews.freebsd.org/D3837
The code compiles fine under Clang, but GCC on PPC is less permissive about
integer and pointer sizes. (An intmax_t is clearly *large enough* to hold a
pointer value.)
Another follow-up to r290475.
Reported by: jhibbits
Sponsored by: EMC / Isilon Storage Division
Right now the only way to force a cold reset is:
* The HAL itself detects it's needed, or
* The sysctl, setting all resets to be cold.
Trouble is, cold resets take quite a bit longer than warm resets.
However, there are situations where a cold reset would be nice.
Specifically, after a stuck beacon, BB/MAC hang, stuck calibration results,
etc.
The vendor HAL has a separate method to set the reset reason (which is
how HAL_RESET_BBPANIC gets set) which informs the HAL during the reset path
why it occured. This is almost but not quite the same; I may eventually
unify both approaches in the future.
This commit just extends HAL_RESET_TYPE to include both status (eg BBPANIC)
and type (eg do COLD.) None of the HAL code uses it yet though; that'll
come later.
It also is a big no-op in each HAL - I need to go teach each of the HALs
about cold/warm reset through this path.
Using unmapped IO is really beneficial when running inside of a VM,
since it avoids IPIs to other vCPUs in order to invalidate the
mappings.
This patch adds unmapped IO support to blkfront. The following tests
results have been obtained when running on a Xen host without HAP:
PVHVM
3165.84 real 6354.17 user 4483.32 sys
PVHVM with unmapped IO
2099.46 real 4624.52 user 2967.38 sys
This is because when running using shadow page tables TLB flushes and
range invalidations are much more expensive, so using unmapped IO
provides a very important performance boost.
Sponsored by: Citrix Systems R&D
MFC after: 2 weeks
X-MFC-with: r290610
dev/xen/blkfront/blkfront.c:
- Add and announce support for unmapped IO.
The implementation of bus_dmamap_load_ma_triv currently calls
_bus_dmamap_load_phys on each page that is part of the passed in buffer.
Since each page is treated as an individual buffer, the resulting behaviour
is different from the behaviour of _bus_dmamap_load_buffer. This breaks
certain drivers, like Xen blkfront.
If an unmapped buffer of size 4096 that starts at offset 13 into the first
page is passed to the current _bus_dmamap_load_ma implementation (so the ma
array contains two pages), the result is that two segments are created, one
with a size of 4083 and the other with size 13 (because two independant
calls to _bus_dmamap_load_phys are performed, one for each physical page).
If the same is done with a mapped buffer and calling _bus_dmamap_load_buffer
the result is that only one segment is created, with a size of 4096.
This patch relegates the usage of bus_dmamap_load_ma_triv in x86 bounce
buffer code to drivers requesting BUS_DMA_KEEP_PG_OFFSET and implements
_bus_dmamap_load_ma so that it's behaviour is the same as the mapped version
(_bus_dmamap_load_buffer). This patch only modifies the x86 bounce buffer
code, other arches are left untouched.
Sponsored by: Citrix Systems R&D
Reviewed by: kib, jah (previous version)
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D888
Rename arp_ifinit2() into arp_announce_ifaddr().
Eliminate zeroing ifa_rtrequest: it was used for calling arp_rtrequest()
which was responsible for handling route cloning requests. It became
obsolete since r186119 (L2/L3 split).
before their initial configuration is done, it turns out that r281337
has the inverse effect on some older chips. Moreover, as with newer
chips before, two chips seemingly identical according to their MAC
revisions may behave differently in this regard, with most working
but a few not, making changes extremely hard to test.
Closer inspection of the corresponding Linux code suggests that RX
and TX should only be enabled after their initial configuration with
RTL8168G and later chips, i. e. RTL8106E{,US}, RTL8107E, as well as
RTL8168{EP,G,GU,H}, so limit the new code path to these. [1]
- Distinguish between RTL8168H and RTL8107E, with the latter being the
10/100-Mbit/s-only variant of the former.
- For MAC variants that can only do Fast Ethernet at a maximum, ensure
that we don't advertise Gigabit Ethernet speed.
- In re_stop(), do the inverse of re_init_locked() and enable RXDV
gate on RTL8168G and later chips again, matching what Linux does.
PR: 203422 [1]
MFC after: 1 week
- Filter out unneeded frames in STA mode.
- Implement ic_promisc() call.
Tested with RTL8188EU, STA and MONITOR modes.
Reviewed by: kevlo
Approved by: adrian (mentor)
Differential Revision: https://reviews.freebsd.org/D3999
learned that the Power8 and the PS3 have a mix of OFW and FDT. Both have AIM
defined. But currently they are not affected. They have no I2C devices under
OFW.
This version was tested on a Quad G5 and build tested for armv6*.
Discussed with nwhitehorn@
Reviewed by: ian@
by bus_dmamem_alloc() which creates associated bus_dmamap_t map for us.
When this memory is freed by bus_dmamem_free(), the map is freed as well.
Thus there is no need to free it explicitly by bus_dmamap_destroy(),
which leads to double freeing.
Discussed with: gonzo
Approved by: kib (mentor)
as otherwise most of the time is spent resolving UIDs to names.
Reviewed by: mjg@
MFC after: 1 month
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D4059
variable during mp_start() which is too late. Move this to mp_setmaxid()
where other architectures set it and move x86 assertions to MI code.
Reviewed by: kib (x86 part)
32-bits aligned. Merge the two bounce buffers into a single one. Some
rough tests showed that the DWC OTG throughput on RPI2 increased by
10% after this patch.
MFC after: 1 week
- Emulate Linux mutex API using sx(9) locks with only exclusive operations
instead of mutex(9), in Linux mutexes are sleepable.
- Emulate Linux rwlock_t using rwlock(9) instead of sx(9). rwlock_t
in Linux are spin locks
