Instead just use num_io_queues to make this determination.
This prepares for some future changes enabling use of multiple
queues when we do not have enough queues or MSI-X vectors
for one queue per CPU.
MFC after: 3 days
Sponsored by: Intel
This significantly improves parallelism in the most common case.
The taskqueue is still used whenever BIO_ORDERED bios are in flight.
This patch is based heavily on a patch from gallatin@.
MFC after: 3 days
Sponsored by: Intel
This ensures the bio flags are not read after biodone().
The ordering will still be enforced, after the bio is
submitted successfully.
MFC after: 3 days
Sponsored by: Intel
Still wait until all in-flight bios (including the ordered bio)
complete before processing more bios from the queue.
MFC after: 3 days
Sponsored by: Intel
rin6 was used only as sockaddr_in6 storage. Make rtalloc1_fib()
use on-stack sin6 and return rtenry directly, instead of doing
useless work with 'struct route_in6'.
The upcoming GELI support in the loader reuses parts of this code
Some ifdefs are added, and some code is moved outside of existing ifdefs
The HMAC parts of GELI are broken out into their own file, to separate
them from the kernel crypto/openssl dependant parts that are replaced
in the boot code.
Passed the GELI regression suite (tools/regression/geom/eli)
Files=20 Tests=14996
Result: PASS
Reviewed by: pjd, delphij
MFC after: 1 week
Sponsored by: ScaleEngine Inc.
Differential Revision: https://reviews.freebsd.org/D4699
and t_maxseg. This dualism emerged with T/TCP, but was not properly cleaned
up after T/TCP removal. After all permutations over the years the result is
that t_maxopd stores a minimum of peer offered MSS and MTU reduced by minimum
protocol header. And t_maxseg stores (t_maxopd - TCPOLEN_TSTAMP_APPA) if
timestamps are in action, or is equal to t_maxopd otherwise. That's a very
rough estimate of MSS reduced by options length. Throughout the code it
was used in places, where preciseness was not important, like cwnd or
ssthresh calculations.
With this change:
- t_maxopd goes away.
- t_maxseg now stores MSS not adjusted by options.
- new function tcp_maxseg() is provided, that calculates MSS reduced by
options length. The functions gives a better estimate, since it takes
into account SACK state as well.
Reviewed by: jtl
Differential Revision: https://reviews.freebsd.org/D3593
Fix const conversion warning in lz4_decompress which shows when warnings
are enabled (to be done later).
MFC after: 2 weeks
X-MFC-With: r293268
Sponsored by: Multiplay
This is based on the vidconsole implementation.
Submitted by: Toomas Soome <tsoome@me.com>
Reviewed by: adrian
MFC after: 2 weeks
Relnotes: Yes
Differential Revision: https://reviews.freebsd.org/D4797
This optimization is not proper (and causes kernel panic),
since driver checks fw_status to optimize away parsing stage
if it was already done.
Reported by: dchagin
Advance the logical block number to the lblkno of the found block plus
one, instead of incrementing the block number which was used for
lookup. This change skips sparcely populated buffer ranges, similar
to r292325, instead of doing useless lookups.
Do not restart the bnoreuselist() from the start of the range if
buffer lock cannot be obtained without sleep. Only retry lookup and
lock for the same queue and same logical block number.
Reported by: benno
Tested by: pho
Sponsored by: The FreeBSD Foundation
MFC after: 3 days
It was returning a pointer to stack-allocated memory, so make the
allocation at the caller instead.
Found by: clang static analyzer
Coverity: CID 1245774
Reviewed by: ed, rpaulo
Review URL: https://reviews.freebsd.org/D4740
The fd is closed later in this case. This fixes a "SS_NOFDREF on enter"
panic.
Submitted by: Krishnamraju Eraparaju @ Chelsio
Reviewed by: Steve Wise @ Open Grid Computing
- Separate 'firmware_put(sc->fw_fp, FIRMWARE_UNLOAD); sc->fw_fp = NULL;'
into iwn_unload_firmware().
- Move error handling to the end of iwn_read_firmware().
No functional changes.
Approved by: adrian (mentor)
Differential Revision: https://reviews.freebsd.org/D4768
iwn(4) / wpi(4) works in the same way
(read_firmware() -> hw_init() -> firmware_put())
Approved by: adrian (mentor)
Differential Revision: https://reviews.freebsd.org/D4766
rtwnfw got added in r293009 and depends on source-less and
non-free microcode in sys/contrib/dev/rtwn.
PR: 205874
Submitted by: Fabian Keil
Obtained from: ElectroBSD
entries data in unified format.
There are control plane functions that require information other than
just next-hop data (e.g. individual rtentry fields like flags or
prefix/mask). Given that the goal is to avoid rte reference/refcounting,
re-use rt_addrinfo structure to store most rte fields. If caller wants
to retrieve key/mask or gateway (which are sockaddrs and are allocated
separately), it needs to provide sufficient-sized sockaddrs structures
w/ ther pointers saved in passed rt_addrinfo.
Convert:
* lltable new records checks (in_lltable_rtcheck(),
nd6_is_new_addr_neighbor().
* rtsock pre-add/change route check.
* IPv6 NS ND-proxy check (RADIX_MPATH code was eliminated because
1) we don't support RTF_ANNOUNCE ND-proxy for networks and there should
not be multiple host routes for such hosts 2) if we have multiple
routes we should inspect them (which is not done). 3) the entire idea
of abusing KRT as storage for ND proxy seems odd. Userland programs
should be used for that purpose).
On powerpc64, pointers are 64 bits, so casting from uint32_t changes the integer
width.
The alternative was to use register_t, but I didn't see register_t used as
argument type for any other functions, though didn't look too closely. u_long
was an acceptable alternative. On 64-bit it's 64 bits, on 32-bit it's 32 bits.
powerpc_init() initializes the mmu. Since this may clear pages via
pmap_zero_page(), set the cacheline size before calling into it, so
pmap_zero_page() has the right cacheline size. This isn't completely
necessary now, but will be when 64-bit book-e is completed.
- Simplify defragmentation code.
- Use proper number of dma segments for data.
Approved by: adrian (mentor)
Obtained from: DragonFlyBSD (mostly)
Differential Revision: https://reviews.freebsd.org/D4754
stable/10 doesn't have the if_getdrvflags(9) KPI. Reference the field in the
structure directly if the __FreeBSD_version is < 1100022, so the driver can
be built with PCI_IOV support on stable/10, without backporting all of
r266974 (which requires additional changes due to projects/ifnet, etc)
Differential Revision: https://reviews.freebsd.org/D4759
Reviewed by: erj, sbruno
Sponsored by: EMC / Isilon Storage Division
These are going to be much more efficient on low end embedded systems
but unfortunately they make it .. less convenient to implement correct
bus barriers and debugging. They also didn't implement the register
serialisation workaround required for Owl (AR5416.)
So, just remove them for now. Later on I'll just inline the routines
from ah_osdep.c.
