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78 commits

Author SHA1 Message Date
Kevin Lo
8636496407 Add __iowrite32_copy() to the Linux kernel compatibility layer. 
Reviewed by:	hselasky
 2016-05-24 09:23:04 +00:00
Hans Petter Selasky
3ce1263063 Set "current" for all PCI enumeration callbacks. 
Obtained from:	kmacy @
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2016-05-24 07:46:20 +00:00
Hans Petter Selasky
5a6748b2cf Use make_dev_s() instead of make_dev() to avoid race setting 
"si_drv1". Convert panic() into regular error while at it.

Suggested by:	jhb @
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2016-05-24 07:06:04 +00:00
Hans Petter Selasky
44701cf732 Implement "atomic_long_add_unless()" in the LinuxKPI and fix the 
implementation of "atomic_long_inc_not_zero()".

Found by:	ngie @
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2016-05-23 16:19:51 +00:00
Hans Petter Selasky
8b68f2509f A missing definition needed by ktime_to_ms(). 
Obtained from:	kmacy @
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2016-05-23 13:19:20 +00:00
Hans Petter Selasky
425da8eb61 Fix some data types and add "inline" keyword for __reg_op() function. 
Obtained from:	kmacy @
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2016-05-23 13:18:15 +00:00
Hans Petter Selasky
83cfd83419 Implement ror32() in the LinuxKPI. 
Obtained from:	kmacy @
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2016-05-23 12:53:17 +00:00
Hans Petter Selasky
fb2faed84e Define more copy to/from userspace functions in the LinuxKPI. 
Obtained from:	kmacy @
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2016-05-23 12:52:22 +00:00
Hans Petter Selasky
aef2a67b83 Add more printf() related functions to the LinuxKPI. 
Obtained from:	kmacy @
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2016-05-23 12:35:07 +00:00
Hans Petter Selasky
7dfa8b2c4e Add more ktime related functions to the LinuxKPI. 
Obtained from:	kmacy @
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2016-05-23 12:10:28 +00:00
Hans Petter Selasky
08a5e6ec7f Implement "kref_put_mutex()" for the LinuxKPI. 
Obtained from:	kmacy @
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2016-05-23 12:06:34 +00:00
Hans Petter Selasky
aad02fb444 Add more list_xxx() functions to the LinuxKPI. 
Obtained from:	kmacy @
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2016-05-23 12:03:40 +00:00
Hans Petter Selasky
0f8f7f554b Make header file standalone by including definitions for needed 
linux_wait_xxx() functions.

Obtained from:	kmacy @
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2016-05-23 11:57:23 +00:00
Hans Petter Selasky
94a201be43 Implement "_outb()" to the LinuxKPI for i386 and amd64 only. 
Obtained from:	kmacy @
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2016-05-23 11:53:00 +00:00
Hans Petter Selasky
ed5f781270 Add support for "cdev_add_ext()" to the LinuxKPI. 
Obtained from:	kmacy @
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2016-05-23 11:50:05 +00:00
Hans Petter Selasky
299f29203a Add more GFP related defines to the LinuxKPI. 
Obtained from:	kmacy @
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2016-05-23 11:47:54 +00:00
Hans Petter Selasky
4a0f827906 Add support for atomic_long_inc_not_zero() to the LinuxKPI. 
Obtained from:	kmacy @
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2016-05-23 11:44:46 +00:00
Hans Petter Selasky
b5c541821a Add support for atomic_long_inc_not_zero() to the LinuxKPI. 
Obtained from:	kmacy @
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2016-05-23 11:41:35 +00:00
Hans Petter Selasky
0f9f74597d Only lock Giant when needed in the LinuxKPI. 
Suggested by:	ngie @
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2016-05-16 17:41:25 +00:00
Hans Petter Selasky
b334cdea9b Implement more Linux device related functions in the LinuxKPI. While 
at it use NULL for some pointer checks.

Bump the FreeBSD version to force recompilation of all kernel modules
due to a structure size change.

Obtained from:	kmacy @
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2016-05-16 09:56:48 +00:00
Hans Petter Selasky
88fa0d734c Don't dereference parent pointer when it is NULL. 
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2016-05-16 09:25:56 +00:00
Hans Petter Selasky
03219fba43 Properly implement "cpu_has_clflush" macro. 
Suggested by:	kib, jhb
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2016-05-16 09:16:15 +00:00
Hans Petter Selasky
fdddd267d7 Handle case of class being set, but not parent when calling 
device_register() in the LinuxKPI.

Obtained from:	kmacy @
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2016-05-13 13:01:02 +00:00
Hans Petter Selasky
83d5d45ea2 Add more PAGE related defines to the LinuxKPI. Move the definition of 
"pgprot_t" to "linux/page.h" similar to what Linux does.

Obtained from:	kmacy @
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2016-05-13 12:41:21 +00:00
Hans Petter Selasky
854e1d4e6c Implement "old_encode_dev()" for the LinuxKPI. 
Obtained from:	kmacy @
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2016-05-13 11:51:43 +00:00
Hans Petter Selasky
374377ce91 Define _IOC_SIZE() in the LinuxKPI. 
Obtained from:	kmacy @
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2016-05-13 11:42:36 +00:00
Hans Petter Selasky
677a229c76 Add unlikely() statement to optimise the IS_ERR_VALUE() macro. 
Obtained from:	kmacy @
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2016-05-13 11:30:56 +00:00
Hans Petter Selasky
e320ac1958 Implement nsecs_to_jiffies() in the LinuxKPI and while at it 
streamline the rest of the xxx_to_jiffies() functions to have a
constant 64-bit argument and use identical range checks for the
result.

Specifically preserve msecs_to_jiffies(0) returning 0. See r282743 for
further details.

MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2016-05-13 11:02:02 +00:00
Hans Petter Selasky
abb14a540f Add more Linux defines. Improve some existing ones. 
Obtained from:	kmacy @
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2016-05-13 10:10:43 +00:00
Hans Petter Selasky
04a471587e The Linux error defines should all be positive, else frequently used 
error code checks might fail. ERESTART is in the BSD world defined as
-1. While at it add more Linux error codes.

Obtained from:	kmacy @
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2016-05-13 09:21:22 +00:00
Hans Petter Selasky
3a8bec33ef Fix handling of IOCTLs in the LinuxKPI. 
Linux requires that all IOCTL data resides in userspace. FreeBSD
always moves the main IOCTL structure into a kernel buffer before
invoking the IOCTL handler and then copies it back into userspace,
before returning. Hide this difference in the "linux_copyin()" and
"linux_copyout()" functions by remapping userspace addresses in the
range from 0x10000 to 0x20000, to the kernel IOCTL data buffer.

It is assumed that the userspace code, data and stack segments starts
no lower than memory address 0x400000, which is also stated by "man 1
ld", which means any valid userspace pointer can be passed to regular
LinuxKPI handled IOCTLs.

Bump the FreeBSD version to force recompilation of all kernel modules.

Discussed with:	kmacy @
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2016-05-12 11:38:28 +00:00
Hans Petter Selasky
15c98ff2f1 Remove redundant "task_struct_set()". 
This is done by the "linux_kthread_fn()".

MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2016-05-12 09:11:18 +00:00
Hans Petter Selasky
464d20bcc8 Create a dummy "task_struct" on the stack which is returned by 
"current" inside all LinuxKPI file operation callbacks. The "current"
is frequently used for various debug prints, printing the thread name
and thread ID for example.

Obtained from:	kmacy @
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2016-05-12 09:06:54 +00:00
Hans Petter Selasky
fd42d62378 Add more IDR and IDA related functions to the LinuxKPI. 
Obtained from:	kmacy @
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2016-05-11 10:40:04 +00:00
Hans Petter Selasky
8457719578 Add more atomic LinuxKPI functions. 
Obtained from:	kmacy @
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2016-05-11 07:58:43 +00:00
Hans Petter Selasky
f2dbb750f4 Implement ioremap_wt() and use that in the MEMREMAP_WT case for i386 
and amd64.

Suggested by:	cem @
Discussed with:	kmacy @
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2016-05-10 17:51:17 +00:00
Hans Petter Selasky
684a5fef01 Add more LinuxKPI I/O functions. 
Obtained from:	kmacy @
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2016-05-10 12:04:57 +00:00
Hans Petter Selasky
7652bc32f7 Use function macros when possible to avoid stray substitutions. 
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2016-05-10 11:39:36 +00:00
Hans Petter Selasky
f2f5b1337e Add missing semicolon and properly wrap macro argument. 
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2016-05-10 11:34:22 +00:00
Hans Petter Selasky
c7d81c66df Allow the argument for the cpu_to_xxxp() and xxx_to_cpup() macros to 
point to a constant.

Obtained from:	kmacy @
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2016-05-10 11:31:00 +00:00
Pedro F. Giffuni
1ce4275dd2 sys/compat/linux*: spelling fixes. 
Mostly on comments but there are some user-visible messages as well.

MFC after: 2 weeks
 2016-04-30 00:53:10 +00:00
Sepherosa Ziehau
1ea448225c tcp/lro: Change SLIST to LIST, so that removing an entry is O(1) 
This is kinda critical to the performance when the CPU is slow and
network bandwidth is high, e.g. in the hypervisor.

Reviewed by:	rrs, gallatin, Dexuan Cui <decui microsoft com>
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D5765
 2016-04-01 06:43:05 +00:00
Navdeep Parhar
b03384114d Add wait_event_interruptible_timeout to linuxkpi. 
Submitted by:	Krishnamraju Eraparaju @ Chelsio
Reviewed by:	hselasky@
Sponsored by:	Chelsio Communications
Differential Revision:	https://reviews.freebsd.org/D5776
 2016-03-31 17:11:58 +00:00
Hans Petter Selasky
9ad5ce9d01 Fix bugs in currently unused bit searching loop. 
MFC after:	3 days
Sponsored by:	Mellanox Technologies
 2016-03-31 06:19:15 +00:00
Hans Petter Selasky
510ebed7be Add more functions to the LinuxKPI. 
Define strnicmp as a function macro instead of a regular macro while
at it.

MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2016-03-03 09:56:04 +00:00
Svatopluk Kraus
a1e1814d76 As <machine/pmap.h> is included from <vm/pmap.h>, there is no need to 
include it explicitly when <vm/pmap.h> is already included.

Reviewed by:	alc, kib
Differential Revision:	https://reviews.freebsd.org/D5373
 2016-02-22 09:02:20 +00:00
Hans Petter Selasky
fe68f570d4 Update and add various macros to the LinuxKPI and resolve a macro 
redefinition issue in the cxgb driver.

MFC after:	1 week
Sponsored by:	Mellanox Technologies
Reviewed by:	np @
 2016-01-26 15:26:35 +00:00
Hans Petter Selasky
c7c96d1093 LinuxKPI list updates: 
- Add some new hlist macros.
- Update existing hlist macros removing the need for a temporary
  iteration variable.
- Properly define the RCU hlist macros to be SMP safe with regard
  to RCU.
- Safe list macro arguments by adding a pair of parentheses.
- Prefix the _list_add() and _list_splice() functions with "linux"
  to reflect they are LinuxKPI internal functions.

Obtained from:	Linux
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2016-01-26 15:12:31 +00:00
Hans Petter Selasky
e6ef991e5e Implement ether_addr_equal(), ether_addr_equal_64bits() and 
random_ether_addr() for the LinuxKPI.

MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2016-01-26 14:36:16 +00:00
Hans Petter Selasky
f15ffb5e63 Implement is_vlan_dev() and vlan_dev_vlan_id() for the LinuxKPI. 
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2016-01-26 14:33:20 +00:00