Commit graph

318 commits

Author SHA1 Message Date
Alan Cox
49bfa624ac Eliminate the arena parameter to kmem_free(). Implicitly this corrects an
error in the function hypercall_memfree(), where the wrong arena was being
passed to kmem_free().

Introduce a per-page flag, VPO_KMEM_EXEC, to mark physical pages that are
mapped in kmem with execute permissions.  Use this flag to determine which
arena the kmem virtual addresses are returned to.

Eliminate UMA_SLAB_KRWX.  The introduction of VPO_KMEM_EXEC makes it
redundant.

Update the nearby comment for UMA_SLAB_KERNEL.

Reviewed by:	kib, markj
Discussed with:	jeff
Approved by:	re (marius)
Differential Revision:	https://reviews.freebsd.org/D16845
2018-08-25 19:38:08 +00:00
Alan Cox
44d0efb215 Eliminate kmem_alloc_contig()'s unused arena parameter.
Reviewed by:	hselasky, kib, markj
Discussed with:	jeff
Differential Revision:	https://reviews.freebsd.org/D16799
2018-08-20 15:57:27 +00:00
Hans Petter Selasky
6402bc3d1e Use atomic_fcmpset_XXX() instead of atomic_cmpset_XXX() when possible
in the LinuxKPI.

Suggested by:	mjg @
MFC after:	1 week
Sponsored by:	Mellanox Technologies
2018-08-09 09:39:32 +00:00
Hans Petter Selasky
549dcdb34e Implement current_work() function in the LinuxKPI.
Tested by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
2018-08-06 10:48:20 +00:00
Hans Petter Selasky
f698bc4d76 Define __poll_t type in the LinuxKPI.
Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
2018-08-06 08:35:16 +00:00
Hans Petter Selasky
62baacef3f Implement ktime_add_ms() and ktime_before() in the LinuxKPI.
Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
2018-08-03 09:02:57 +00:00
Alan Somers
6040822c4e Make timespecadd(3) and friends public
The timespecadd(3) family of macros were imported from NetBSD back in
r35029. However, they were initially guarded by #ifdef _KERNEL. In the
meantime, we have grown at least 28 syscalls that use timespecs in some
way, leading many programs both inside and outside of the base system to
redefine those macros. It's better just to make the definitions public.

Our kernel currently defines two-argument versions of timespecadd and
timespecsub.  NetBSD, OpenBSD, and FreeDesktop.org's libbsd, however, define
three-argument versions.  Solaris also defines a three-argument version, but
only in its kernel.  This revision changes our definition to match the
common three-argument version.

Bump _FreeBSD_version due to the breaking KPI change.

Discussed with:	cem, jilles, ian, bde
Differential Revision:	https://reviews.freebsd.org/D14725
2018-07-30 15:46:40 +00:00
Hans Petter Selasky
35555d474b Implement the kstrtobool() and kstrtobool_from_user() functions
in the LinuxKPI.

Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
Sponsored by:	Limelight Networks
2018-06-11 16:26:33 +00:00
Hans Petter Selasky
71ee95ddf7 Define ARCH_KMALLOC_MINALIGN in the LinuxKPI.
Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
Sponsored by:	Limelight Networks
2018-06-07 11:44:11 +00:00
Hans Petter Selasky
d150e15285 Wrap timespec64 into timespec in the LinuxKPI.
Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
Sponsored by:	Limelight Networks
2018-06-07 11:41:42 +00:00
Hans Petter Selasky
a041e75a34 Move the EXPORT_SYMBOL_XXX() function macros into own header file.
Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
Sponsored by:	Limelight Networks
2018-06-07 11:34:59 +00:00
Hans Petter Selasky
422d8af4df Implement the dev_pm_set_driver_flags() function macro in the LinuxKPI.
Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
Sponsored by:	Limelight Networks
2018-06-07 11:29:07 +00:00
Hans Petter Selasky
40ddfc7604 Make some list functions RCU safe in the LinuxKPI.
While at it rename hlist_add_after() into hlist_add_behind().

Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
Sponsored by:	Limelight Networks
2018-06-06 15:49:01 +00:00
Hans Petter Selasky
e6e028d01f Implement the __add_wait_queue_entry_tail() function in the LinuxKPI.
Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
Sponsored by:	Limelight Networks
2018-06-06 15:19:30 +00:00
Hans Petter Selasky
7e95e98db8 Implement the might_sleep_if() function macro in the LinuxKPI.
Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
Sponsored by:	Limelight Networks
2018-06-06 15:10:11 +00:00
Hans Petter Selasky
ab98f1e8d8 Rename two structure field members while keeping backwards compatibility in
the LinuxKPI. Add a comment saying in which Linux version this change was made.

Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
Sponsored by:	Limelight Networks
2018-06-06 15:06:21 +00:00
Hans Petter Selasky
1b092623b2 Implement the init_wait_entry() function macro in the LinuxKPI.
Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
Sponsored by:	Limelight Networks
2018-06-06 14:59:23 +00:00
Hans Petter Selasky
9e067b2256 Implement the ktime_compare() and ktime_after() functions in the LinuxKPI.
Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
Sponsored by:	Limelight Networks
2018-06-06 13:37:31 +00:00
Hans Petter Selasky
7a13eeba18 Declare and set the global "system_highpri_wq" workqueue structure pointer
in the LinuxKPI.

Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
Sponsored by:	Limelight Networks
2018-06-05 15:49:35 +00:00
Hans Petter Selasky
c6d920309c Implement the INIT_DELAYED_WORK_ONSTACK() function macro in the LinuxKPI.
Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
Sponsored by:	Limelight Networks
2018-06-05 15:46:16 +00:00
Hans Petter Selasky
7f346854b8 Define the __kernel_size_t type in the LinuxKPI.
Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
Sponsored by:	Limelight Networks
2018-06-05 15:42:35 +00:00
Hans Petter Selasky
5a1d03bb7c Implement the task_pid_vnr() function macro in the LinuxKPI.
Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
Sponsored by:	Limelight Networks
2018-06-05 15:40:09 +00:00
Hans Petter Selasky
747d9a8165 Add "access" function pointer to the "vm_operations_struct" structure
in the LinuxKPI. While at it document when to use the "virtual_address" or
the "address" field in the "vm_fault" structure.

Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
Sponsored by:	Limelight Networks
2018-06-05 15:37:28 +00:00
Hans Petter Selasky
0d2dce0b78 Implement mul_u32_u32() function in the LinuxKPI.
Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
Sponsored by:	Limelight Networks
2018-06-05 15:30:36 +00:00
Hans Petter Selasky
f446b7cab4 Implement timer_setup() and from_timer() function macros in the LinuxKPI.
Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
Sponsored by:	Limelight Networks
2018-06-05 15:20:20 +00:00
Hans Petter Selasky
57a865f808 Implement the __sg_alloc_table_from_pages() function based on the existing
sg_alloc_table_from_pages() function in the LinuxKPI.

This basically allow segments to have a limit, max_segment.

Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
Sponsored by:	Limelight Networks
2018-06-01 12:09:07 +00:00
Hans Petter Selasky
6fad8d171a Implement radix_tree_iter_delete() in the LinuxKPI.
Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
Sponsored by:	Limelight Networks
2018-06-01 11:42:09 +00:00
Hans Petter Selasky
0a85496223 Improve high resolution timer support in the LinuxKPI.
Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
Sponsored by:	Limelight Networks
2018-06-01 11:33:14 +00:00
Hans Petter Selasky
f03ae7e802 Add more GFP macro definitions in the LinuxKPI.
Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
Sponsored by:	Limelight Networks
2018-06-01 11:14:59 +00:00
Hans Petter Selasky
13a5c70b91 Implement support for the PCI_BUS_NUM() function macro in the LinuxKPI.
Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
2018-05-31 13:17:34 +00:00
Hans Petter Selasky
f1aa567bfe Implement support for the kvmalloc_array() function in the LinuxKPI.
Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
2018-05-31 13:13:08 +00:00
Hans Petter Selasky
f6d4552417 Correct macroname in the LinuxKPI.
Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
2018-05-31 12:55:38 +00:00
Hans Petter Selasky
cbea4f294f Define __initconst in the LinuxKPI.
Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
2018-05-31 12:50:42 +00:00
Hans Petter Selasky
7ce7605ece Implement bitmap_complement() in the LinuxKPI.
Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
2018-05-31 12:48:24 +00:00
Hans Petter Selasky
69d6653ba4 Implement idr_is_empty() in the LinuxKPI and make idr_remove() API compatible
with upstream Linux by returning the pointer to the removed element.

Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
2018-05-31 12:35:21 +00:00
Hans Petter Selasky
666cda9e0c The schedule_timeout_killable() function should listen for signals
in the LinuxKPI.

Found by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
2018-05-28 11:26:40 +00:00
Hans Petter Selasky
bd40dea7e2 Implement wait_event_killable() in the LinuxKPI.
Requested by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
2018-05-28 10:54:24 +00:00
Matt Macy
4f6c66cc9c UDP: further performance improvements on tx
Cumulative throughput while running 64
  netperf -H $DUT -t UDP_STREAM -- -m 1
on a 2x8x2 SKL went from 1.1Mpps to 2.5Mpps

Single stream throughput increases from 910kpps to 1.18Mpps

Baseline:
https://people.freebsd.org/~mmacy/2018.05.11/udpsender2.svg

- Protect read access to global ifnet list with epoch
https://people.freebsd.org/~mmacy/2018.05.11/udpsender3.svg

- Protect short lived ifaddr references with epoch
https://people.freebsd.org/~mmacy/2018.05.11/udpsender4.svg

- Convert if_afdata read lock path to epoch
https://people.freebsd.org/~mmacy/2018.05.11/udpsender5.svg

A fix for the inpcbhash contention is pending sufficient time
on a canary at LLNW.

Reviewed by:	gallatin
Sponsored by:	Limelight Networks
Differential Revision:	https://reviews.freebsd.org/D15409
2018-05-23 21:02:14 +00:00
Mark Johnston
e3d5c4ade1 Remove "All rights reserved" from my files.
See r333391 for the rationale.

MFC after:	1 week
2018-05-09 20:57:18 +00:00
Matt Macy
cbd92ce62e Eliminate the overhead of gratuitous repeated reinitialization of cap_rights
- Add macros to allow preinitialization of cap_rights_t.

- Convert most commonly used code paths to use preinitialized cap_rights_t.
  A 3.6% speedup in fstat was measured with this change.

Reported by:	mjg
Reviewed by:	oshogbo
Approved by:	sbruno
MFC after:	1 month
2018-05-09 18:47:24 +00:00
Hans Petter Selasky
45aca3b1a1 Define USEC_PER_MSEC and USEC_PER_SEC in the LinuxKPI.
MFC after:	1 week
Sponsored by:	Mellanox Technologies
2018-04-30 09:31:09 +00:00
Hans Petter Selasky
4b70609941 Optimise use of Giant in the LinuxKPI.
- Make sure Giant is locked when calling PCI device methods.
Newbus currently requires this.

- Avoid unlocking Giant right before aquiring the sleepqueue lock.
This can save a task switch.

MFC after:	1 week
Sponsored by:	Mellanox Technologies
2018-03-30 20:11:12 +00:00
Hans Petter Selasky
fa0d4f31a7 Swap two instances of regular macros with function macros in the LinuxKPI,
to narrow down the substitution scope.

MFC after:	1 week
Sponsored by:	Mellanox Technologies
2018-03-28 17:54:34 +00:00
Ed Maste
8363051739 linuxkpi whitespace cleanup
Reviewed by:	hselasky, markj
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D14807
2018-03-23 15:50:01 +00:00
Hans Petter Selasky
555deb3c96 The pci_disable_device() function is also expected to clear the PCI
busmaster. This fixes LinuxKPI compliancy with Linux.

MFC after:	1 week
Sponsored by:	Mellanox Technologies
2018-03-22 13:30:35 +00:00
Hans Petter Selasky
e1992aa142 Clear old MSIX IRQ numbers in the LinuxKPI.
When disabling the MSIX IRQ vectors for a PCI device through the
LinuxKPI, make sure any old MSIX IRQ numbers are no longer visible to
the linux_pci_find_irq_dev() function else IRQs can be requested from
the wrong PCI device.

MFC after:	1 week
Sponsored by:	Mellanox Technologies
2018-03-22 12:26:27 +00:00
Hans Petter Selasky
cbfc3c73ce Fix compliancy of the kstrtoXXX() functions in the LinuxKPI, by skipping
one newline character at the end, if any.

Found by:	greg@unrelenting.technology
MFC after:	1 week
Sponsored by:	Mellanox Technologies
2018-03-14 19:51:28 +00:00
Andrey V. Elsukov
c2a5dc6cd7 Add mapping for several ethernet types used by Linux to FreeBSD
ethernet types.

Reviewed by:	hselasky
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D14594
2018-03-06 12:58:00 +00:00
Hans Petter Selasky
e9e4ec118f Properly wrap the BUILD_BUG() function macro in the LinuxKPI.
MFC after:	1 week
Sponsored by:	Mellanox Technologies
2018-03-04 19:42:50 +00:00
Hans Petter Selasky
20789a72e0 Stub kernel_param_lock() and kernel_param_unlock() in the LinuxKPI.
MFC after:	1 week
Submitted by:	Johannes Lundberg <johalun0@gmail.com>
Sponsored by:	Mellanox Technologies
Sponsored by:	Limelight Networks
2018-03-04 19:10:30 +00:00