kernel/netmap: Move headers into <net/netmap/...>.

Note that netmap isn't hooked into the build right now, and because of
that, this commit results in removing them from their current location.

Som

kernel/netmap: Move headers into <net/netmap/...>.

Note that netmap isn't hooked into the build right now, and because of
that, this commit results in removing them from their current location.

Some dports like net/libpcap started breaking after 2c68437386f4be2ed45a4
because configure found a building netmap_user.h and decided that we have
a current and usable netmap.

Reported-by: zrj

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kernel: Move us to using M_NOWAIT and M_WAITOK for mbuf functions.

The main reason is that our having to use the MB_WAIT and MB_DONTWAIT
flags was a recurring issue when porting drivers from FreeBSD

kernel: Move us to using M_NOWAIT and M_WAITOK for mbuf functions.

The main reason is that our having to use the MB_WAIT and MB_DONTWAIT
flags was a recurring issue when porting drivers from FreeBSD because
it tended to get forgotten and the code would compile anyway with the
wrong constants. And since MB_WAIT and MB_DONTWAIT ended up as ocflags
for an objcache_get() or objcache_reclaimlist call (which use M_WAITOK
and M_NOWAIT), it was just one big converting back and forth with some
sanitization in between.

This commit allows M_* again for the mbuf functions and keeps the
sanitizing as it was before: when M_WAITOK is among the passed flags,
objcache functions will be called with M_WAITOK and when it is absent,
they will be called with M_NOWAIT. All other flags are scrubbed by the
MB_OCFLAG() macro which does the same as the former MBTOM().

Approved-by: dillon

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kernel: Don't confuse kmalloc() and mbuf flags.

kernel: make pktinfo and cpuid native to ip_input()

In order to remove ether_input_pkt(), switch the prototype
of if_input() and adjust all callers. While there, consolidate
the style of the invoke

kernel: make pktinfo and cpuid native to ip_input()

In order to remove ether_input_pkt(), switch the prototype
of if_input() and adjust all callers. While there, consolidate
the style of the invoke.

Suggested and reviewed by: sephe

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netmap: remove bogus NULL check

Reported-by: swildner

netmap: reduce upstream diff output; bring back __FBSDIDs

netmap: change header includes

Suggested-by: sephe

FWIW, kqfilter() port is not really going well as poll() is doing
a bunch of loosely related drive-by actions that somehow form the
API. The best

netmap: change header includes

Suggested-by: sephe

FWIW, kqfilter() port is not really going well as poll() is doing
a bunch of loosely related drive-by actions that somehow form the
API. The best approach would be to thin out the implementation to
at least get the bare core functionality working. That'll also
include writing new userland glue. Feels more like a fork than a
port that way. :(

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netmap: fix all the cdev prototypes

While there, reduce diff noise against vanilla sources.

netmap: more porting; undo some mistakes

Probably adds new issues, too. There's some VM magic,
cdev_t adaption and a couple of network internals left.

netmap: lock(9), k*() foo, no ifdefs

The ifdef glue is a bit hard to see through. Remove it now to
bring it back later with appropriate ifdefs for DragonFly.

netmap: initial import of netmap core

Vanilla sources; not hooked up to the build.

Taken-from: https://code.google.com/p/netmap/ (3b385fe7854d)