Commit graph

29 commits

Author SHA1 Message Date
Warner Losh fdafd315ad sys: Automated cleanup of cdefs and other formatting
Apply the following automated changes to try to eliminate
no-longer-needed sys/cdefs.h includes as well as now-empty
blank lines in a row.

Remove /^#if.*\n#endif.*\n#include\s+<sys/cdefs.h>.*\n/
Remove /\n+#include\s+<sys/cdefs.h>.*\n+#if.*\n#endif.*\n+/
Remove /\n+#if.*\n#endif.*\n+/
Remove /^#if.*\n#endif.*\n/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/types.h>/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/param.h>/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/capsicum.h>/

Sponsored by:		Netflix
2023-11-26 22:24:00 -07:00
Warner Losh 685dc743dc sys: Remove $FreeBSD$: one-line .c pattern
Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/
2023-08-16 11:54:36 -06:00
Warner Losh 95ee2897e9 sys: Remove $FreeBSD$: two-line .h pattern
Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/
2023-08-16 11:54:11 -06:00
Justin Hibbits b34a60c54f Mechanically convert vtbe(4) to IfAPI
Reviewed by:	zlei
Sponsored by:	Juniper Networks, Inc.
Differential Revision: https://reviews.freebsd.org/D37844
2023-02-07 14:16:18 -05:00
John Baldwin 2ded2b9a2b beri: Remove unused devclass arguments to DRIVER_MODULE. 2022-05-10 10:21:39 -07:00
Mateusz Guzik bb92cd7bcd vfs: NDFREE(&nd, NDF_ONLY_PNBUF) -> NDFREE_PNBUF(&nd) 2022-03-24 10:20:51 +00:00
Mateusz Guzik 7e1d3eefd4 vfs: remove the unused thread argument from NDINIT*
See b4a58fbf64 ("vfs: remove cn_thread")

Bump __FreeBSD_version to 1400043.
2021-11-25 22:50:42 +00:00
Jessica Clarke f2f8405cf6 if_vtbe: Add missing includes to fix build
PR:		254137
Reported by:	Mina Galić <me@igalic.co>
MFC after:	3 days
Fixes:		f8bc74e2f4 ("tap: add support for virtio-net offloads")
2021-03-08 20:48:48 +00:00
Mateusz Guzik dcc016d173 beri: clean up empty lines in .c and .h files 2020-09-01 21:42:21 +00:00
Gleb Smirnoff e87c494015 Although most of the NIC drivers are epoch ready, due to peer pressure
switch over to opt-in instead of opt-out for epoch.

Instead of IFF_NEEDSEPOCH, provide IFF_KNOWSEPOCH. If driver marks
itself with IFF_KNOWSEPOCH, then ether_input() would not enter epoch
when processing its packets.

Now this will create recursive entrance in epoch in >90% network
drivers, but will guarantee safeness of the transition.

Mark several tested drivers as IFF_KNOWSEPOCH.

Reviewed by:		hselasky, jeff, bz, gallatin
Differential Revision:	https://reviews.freebsd.org/D23674
2020-02-24 21:07:30 +00:00
Gleb Smirnoff 0921628ddc Introduce flag IFF_NEEDSEPOCH that marks Ethernet interfaces that
supposedly may call into ether_input() without network epoch.

They all need to be reviewed before 13.0-RELEASE.  Some may need
be fixed.  The flag is not planned to be used in the kernel for
a long time.
2020-01-23 01:41:09 +00:00
Mateusz Guzik b249ce48ea vfs: drop the mostly unused flags argument from VOP_UNLOCK
Filesystems which want to use it in limited capacity can employ the
VOP_UNLOCK_FLAGS macro.

Reviewed by:	kib (previous version)
Differential Revision:	https://reviews.freebsd.org/D21427
2020-01-03 22:29:58 +00:00
Mateusz Guzik abd80ddb94 vfs: introduce v_irflag and make v_type smaller
The current vnode layout is not smp-friendly by having frequently read data
avoidably sharing cachelines with very frequently modified fields. In
particular v_iflag inspected for VI_DOOMED can be found in the same line with
v_usecount. Instead make it available in the same cacheline as the v_op, v_data
and v_type which all get read all the time.

v_type is avoidably 4 bytes while the necessary data will easily fit in 1.
Shrinking it frees up 3 bytes, 2 of which get used here to introduce a new
flag field with a new value: VIRF_DOOMED.

Reviewed by:	kib, jeff
Differential Revision:	https://reviews.freebsd.org/D22715
2019-12-08 21:30:04 +00:00
Oleksandr Tymoshenko 3af08701cd Fix off-by-one error in BERI virtio driver
The hardcoded ident is exactly 20 bytes long but sprintf adds terminating zero,
so there is one byte written out of array bounds.As a fix use strncpy it
appends \0 only if space allows and its behavior matches virtio spec:

When VIRTIO_BLK_T_GET_ID is issued, the device identifier, up to 20 bytes, is
written to the buffer. The identifier should be interpreted as an ascii string.
It is terminated with \0, unless it is exactly 20 bytes long.

PR:		202298
Reviewed by:	br
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D18852
2019-02-11 07:42:32 +00:00
Pedro F. Giffuni ac2fffa4b7 Revert r327828, r327949, r327953, r328016-r328026, r328041:
Uses of mallocarray(9).

The use of mallocarray(9) has rocketed the required swap to build FreeBSD.
This is likely caused by the allocation size attributes which put extra pressure
on the compiler.

Given that most of these checks are superfluous we have to choose better
where to use mallocarray(9). We still have more uses of mallocarray(9) but
hopefully this is enough to bring swap usage to a reasonable level.

Reported by:	wosch
PR:		225197
2018-01-21 15:42:36 +00:00
Pedro F. Giffuni 26c1d774b5 dev: make some use of mallocarray(9).
Focus on code where we are doing multiplications within malloc(9). None of
these is likely to overflow, however the change is still useful as some
static checkers can benefit from the allocation attributes we use for
mallocarray.

This initial sweep only covers malloc(9) calls with M_NOWAIT. No good
reason but I started doing the changes before r327796 and at that time it
was convenient to make sure the sorrounding code could handle NULL values.
2018-01-13 22:30:30 +00:00
Pedro F. Giffuni 4d24901ac9 sys/dev: Replace zero with NULL for pointers.
Makes things easier to read, plus architectures may set NULL to something
different than zero.

Found with:	devel/coccinelle
MFC after:	3 weeks
2017-02-20 03:43:12 +00:00
Ruslan Bukin 4934834d6b Allow BERI virtio-platform code to operate with no PIO devices specified.
We will use it with Bluespec simulator of CHERI processor for invalidating
caches only.
2015-07-03 14:27:28 +00:00
Ruslan Bukin 1aac28e753 o Switch to use non-mergeable RX buffers to avoid mbuf adjustment needs
o Operate with copy of iov as we expect later it was not modified
2015-01-05 16:43:22 +00:00
Ruslan Bukin 2499610b9a Do not configure Altera PIO device on ARM startup.
PIO is a device implemented in soft-core and becomes
available after flashing FPGA only.
2015-01-04 23:14:04 +00:00
Bryan Venteicher f83577167c Remove dev/virtio/virtio.h include from BERI VirtIO
This header file contains prototypes and defines that only make
sense to the guest VirtIO device drivers.

Reviewed by:	br
2014-12-29 00:35:44 +00:00
Ian Lepore 734ba86366 Eliminate a "cast discards qualifiers" warning when building with gcc. 2014-12-21 21:24:19 +00:00
Ruslan Bukin 156b97fa1f Add virtio bus 'poll' method allowing us to inform backend we are
going to poll virtqueue.

Use on BERI soft-core to invalidate cpu caches.

Reviewed by:	bryanv
Sponsored by:	DARPA, AFRL
2014-12-12 11:19:10 +00:00
Ruslan Bukin a8098016f1 o Add BERI Virtio Networking Frontend (if_vtbe)
o Move similar block/networking methods to common file
o Follow r275640 and correct MMIO registers width
o Pass value to MMIO platform_note method.

Sponsored by:	DARPA, AFRL
2014-12-09 16:39:21 +00:00
Ruslan Bukin e8cf387c51 o Add PIO and vtblk mmio device info to the tree
o Add FPGA memory window to static dev mappings
o Fix whitespace
2014-11-25 16:06:19 +00:00
Ruslan Bukin 13e19fb323 Add BERI-specific virtio block backend device driver.
This part intended to operate on ARM side in heterogeneous
(ARM/BERI) system on crystal.
2014-11-25 15:58:59 +00:00
Ruslan Bukin 1230159bc7 Add BERI-specific virtio mmio "platform" device.
This device provides a connector to Altera PIO allowing us
to interrupt software-implemented virtio mmio backend.

Sponsored by:	DARPA, AFRL
2014-11-19 14:49:29 +00:00
Ruslan Bukin 2d3f1b38a9 Provide a character device allowing us to access BERI memory regions.
Sponsored by:	DARPA, AFRL
2014-10-22 11:30:03 +00:00
Ruslan Bukin b0da449e60 Add driver for BERI soft processor 'ring buffer' device.
Ring device provides a way for communicate to BERI
peripherals such as BERI debug unit and console.

Sponsored by:	DARPA, AFRL
2014-10-19 16:26:49 +00:00