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5 commits

Author SHA1 Message Date
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
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
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
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