In the driver init routine the CPU clock frequency
value is obtained from a dedicated register. Until now
only part of the values were handled by the mv_ap806_clock
driver. Fix that by adding missing cases.
Submitted by: Zyta Szpak <zr@semihalf.com>
MFC after: 1 week
Obtained from: Semihalf
Sponsored by: Marvell
(cherry picked from commit a86b0839d7)
This code implements a version of the devres framework found
working for various iwlwifi use cases and also providing functions
for ttm_page_alloc_dma.c from DRM.
Part of the framework replicates the consumed KPI, while others
are internal helper functions.
In addition the simple devm_k*malloc() consumers were implemented
and kvasprintf() was enhanced to also work for the devm_kasprintf()
case.
Addmittingly lkpi_devm_kmalloc_release() could be avoided but for
the overall understanding of the code and possible memory tracing
it may still be helpful.
Further devsres consumer are implemented for iwlwifi but will follow
later as the main reason for this change is to sort out overlap with
DRM.
Sponsored-by: The FreeBSD Foundation
Obtained-from: bz_iwlwifi
MFC After: 3 days
Reviewed-by: hselasky, manu
Differential Revision: https://reviews.freebsd.org/D28189
(cherry picked from commit fa765ca73e)
In pci_domain_nr() directly return the domain which got set in
lkpifill_pci_dev() in all cases. This was missed between D27550
and 105a37cac7 .
In order to implement pci_dev_put() harmonize further code
(which was started in the aforementioned commit) and add kobj
related bits (through the now common lkpifill_pci_dev() code)
to the DRM specific calls without adding the DRM allocated
pci devices to the pci_devices list.
Add a release for the lkpinew_pci_dev() (DRM) case so freeing
will work.
This allows the DRM created devices to use the normal kobj/refcount
logic and work with, e.g., pci_dev_put().
(For a slightly more detailed code walk see the review).
Sponsored-by: The FreeBSD Foundation
Obtained-from: bz_iwlwifi (partially)
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D28188
(cherry picked from commit 1fac2cb4d6)
The upcoming in-kernel implementations for LinuxKPI based on work on
iwlwifi (and other wireless drivers) conflicts in a few places with
the drm-kmod graphics work outside the base system.
In order to transition smoothly extract the conflicting bits.
This included "unaligned" accessor functions, sg_pcopy_from_buffer(),
IS_*() macros (to be further restricted in the future), power management
bits (possibly no longer conflicting with DRM), and other minor changes.
Obtained-from: bz_iwlwifi
Sponsored-by: The FreeBSD Foundation
MFC after: 3 days
Reviewed by: kib, hselasky, manu, bdragon (looked at earlier versions)
Differential Revision: https://reviews.freebsd.org/D26598
(cherry picked from commit 4abbf816bf)
Implement linux firmware KPI compat code.
This includes: request_firmware() request_firmware_nowait(),
request_firmware_direct(), firmware_request_nowarn(),
and release_firmware().
Given we will try to map requested names from natively ported
or full-linuxkpi-using drivers to a firmware(9) auto-loading
name format (.ko file name and image name matching),
we quieten firmware(9) and print success or failure (unless
the _nowarn() version was called) in the linuxkpi implementation.
At the moment we try up-to 4 different naming combinations,
with path stripped, original name, and requested name with '/'
or '.' replaced.
We do not currently defer loading in the "nowait" case.
Sponsored-by: The FreeBSD Foundation
Sponsored-by: Rubicon Communications, LLC ("Netgate")
(firmware(9) nowarn update from D27413)
MFC after: 3 days
Reviewed by: kib, manu (looked at older versions)
Differential Revision: https://reviews.freebsd.org/D27414
(cherry picked from commit a6c2507d1b)
(cherry picked from commit 4a26380ba6)
The current uname is branch-cXXXX-gHASH
Three changes to make uname more useful.
1. Move from using git rev-list --count to git rev-lis --count --first-parent
since that gives a better, incrementing number.
2. Report this count as 'nXXXXX' rather than 'cXXXXX' because c is part of
a hash and we've changed the sematnics of XXXXX
3. Remove g to make HASH cut and pastable.
Durting review, #1 & #3 had the largest consensus. There was a diversity of
opinion on #2, but on the whole it was positive so I'll acknowledge the dissent,
but move forward with something seems to have support since the dissent was all
about what letter to use where I chose 'n'.
MFC After: 3 days
Reviewed by: rgrimes, emaste (earlier version)
Differential Revision: https://reviews.freebsd.org/D28338
(cherry picked from commit 8a51f14a78)
All page zeroing is using temporal stores with rep movs*, the routine is
unused for several years.
Should a need arise for zeroing using non-temporal stores, a more
optimized variant can be implemented with a more descriptive name.
(cherry picked from commit d1de5698df)
The previous code neglected to use primitives which can find the end
of the string without having to branch on every character.
While here augment the somewhat misleading commentary -- strlen as
implemented here leaves performance on the table, especially so for
userspace. Every arch should get a dedicated variant instead.
In the meantime this commit lessens the problem.
Tested with glibc test suite.
Naive test just calling strlen in a loop on Haswell (ops/s):
$(perl -e "print 'A' x 3"):
before: 211198039
after: 338626619
$(perl -e "print 'A' x 100"):
before: 83151997
after: 98285919
(cherry picked from commit 710e45c4b8)
This follows select by eleminating the use of filedesc lock.
This is a win for single-threaded processes and a mixed bag for others
as at small concurrency it is faster to take the lock instead of
refing/unrefing each file descriptor.
Nonetheless, removal of shared lock usage is a step towards a
mtx-protected fd table.
(cherry picked from commit 45e1f85414)
Since most select users are single-threaded this avoid a lot of work
in the common case.
For example select of 16 fds (ops/s):
before: 2114536
after: 2991010
(cherry picked from commit 6affe1b712)
This can be used by single-threaded processes which don't share a file
descriptor table to access their file objects without having to
reference them.
For example select consumers tend to match the requirement and have
several file descriptors to inspect.
(cherry picked from commit eaad8d1303)
The code was performing an avoidable check for doomed state to account
for foo being a VDIR but turning VBAD. Now that dooming puts a vnode
in a permanent "modify" state this is no longer necessary as the final
status check will catch it.
(cherry picked from commit a098a831a1)
Instead of resorting to seqc modification take advantage of immutability
of entries and check if the entry still matches after everything got
prepared.
(cherry picked from commit e7cf562a40)
It is unclear without investigating if it can be provided without using
extra memory, so for the time being just don't.
(cherry picked from commit c892d60a1d)
Add support for enabling and disabling IFCAP_VLAN_HWTSO via
ifconfig(8) in mlx5en(4).
Sponsored by: Mellanox Technologies // NVIDIA Networking
(cherry picked from commit 064009e794)
Fix missing value in uar_page field for ratelimit in mlx5en(4).
This is a regression issue after the new UAR API was introduced
by f8f5b459d2 .
Sponsored by: Mellanox Technologies // NVIDIA Networking
(cherry picked from commit b8051298b0)
With the upcoming usage from LinuxKPI but also from drivers
ported natively we are seeing more probing of various
firmware (names).
Add the ability to firmware(9) to silence the
"firmware image loading/registering errors" by adding a new
firmware_get_flags() functions extending firmware_get() and
taking a flags argument as firmware_put() already does.
Requested-by: zeising (for future LinuxKPI/DRM)
Sponsored-by: The FreeBSD Foundation
Sponsored-by: Rubicon Communications, LLC ("Netgate")
MFC after: 3 days
Reviewed-by: markj
Differential Revision: https://reviews.freebsd.org/D27413
(cherry picked from commit 6f65b50546)
vfs_cache_lookup() has already done the appropriate VEXEC check, therefore
we must not re-check in VOP_CACHEDLOOKUP.
This fixes O_SEARCH semantics on tmpfs and removes a redundant descent into
VOP_ACCESS() in the common case.
(cherry picked from commit 0f919ed4ae)
Move software iSCSI tunables/sysctls into kern.icl.soft subtree.
Replace several hardcoded length constants there with variables.
While there, stretch the limits to better match Linux' open-iscsi
and our own initiator with new MAXPHYS of 1MB. Our CTL target is
also optimized for up to 1MB I/Os, so there is also a match now.
For Windows 10 and VMware 6.7 initiators at default settings it
should make no change, since previous limits were sufficient there.
Tests of QD1 1MB writes from FreeBSD over 10GigE link show throughput
increase by 29% on idle connection and 132% with concurrent QD8 reads.
Sponsored by: iXsystems, Inc.
(cherry picked from commit b75168ed24)
The NS_MOREFRAG flag can be set in a netmap slot to represent a
multi-fragment packet. Only the last fragment of a packet does
not have the flag set. On TX rings, the flag may be set by the
userspace application. The kernel will look at the flag and use it
to properly set up the NIC TX descriptors.
On RX rings, the kernel may set the flag if the packet received
was split across multiple netmap buffers. The userspace application
should look at the flag to know when the packet is complete.
Submitted by: rajesh1.kumar_amd.com
Reviewed by: vmaffione
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D27799
(cherry picked from commit aceaccab65)
By default, axgbe driver does a receiver reset after predefined number
of retries for the link to come up. However, this receiver reset
doesn't always suffice, due to an hardware issue.
In that case, as a workaround, a complete phy reset is necessary.
This patch introduces a sysctl that can be set to 1 to let the driver
reset the phy completely, rather than just doing receiver reset.
The workaround will be removed once the issue is fixed by means
of firmware update.
This patch also fixes the handling of the direct attach cables
properly.
Submitted by: rajesh1.kumar_amd.com
Differential Revision: https://reviews.freebsd.org/D28266
(cherry picked from commit bfd75d4557)
