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72cdd1d971
linux/drivers/infiniband/core
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Eric Dumazet 72cdd1d971 net: get rid of rtable->idev 
It seems idev field in struct rtable has no special purpose, but adding
extra atomic ops.

We hold refcounts on the device itself (using percpu data, so pretty
cheap in current kernel).

infiniband case is solved using dst.dev instead of idev->dev

Removal of this field means routing without route cache is now using
shared data, percpu data, and only potential contention is a pair of
atomic ops on struct neighbour per forwarded packet.

About 5% speedup on routing test.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Roland Dreier <rolandd@cisco.com>
Cc: Sean Hefty <sean.hefty@intel.com>
Cc: Hal Rosenstock <hal.rosenstock@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-11 10:29:40 -08:00
..
addr.c net: get rid of rtable->idev 2010-11-11 10:29:40 -08:00
agent.c IB/mad: IBoE supports only QP1 (no QP0) 2010-10-13 09:38:11 -07:00
agent.h RDMA: Remove subversion $Id tags 2008-07-14 23:48:44 -07:00
cache.c RDMA: Remove subversion $Id tags 2008-07-14 23:48:44 -07:00
cm_msgs.h IB: Remove __constant_{endian} uses 2009-01-17 17:11:57 -08:00
cm.c IB/cm: Check LAP state before sending an MRA 2010-07-28 15:18:24 -07:00
cma.c IB/core: Add VLAN support for IBoE 2010-10-25 10:20:39 -07:00
core_priv.h IB/core: Allow device-specific per-port sysfs files 2010-05-21 10:34:44 -07:00
device.c IB/core: Allow device-specific per-port sysfs files 2010-05-21 10:34:44 -07:00
fmr_pool.c RDMA: Remove subversion $Id tags 2008-07-14 23:48:44 -07:00
iwcm.c RDMA/iwcm: Fix hang in uninterruptible wait on cm_id destroy 2010-10-11 20:24:04 -07:00
iwcm.h
mad_priv.h IB/mad: Allow tuning of QP0 and QP1 sizes 2009-09-07 08:28:48 -07:00
mad_rmpp.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
mad_rmpp.h RDMA: Remove subversion $Id tags 2008-07-14 23:48:44 -07:00
mad.c IB/mad: IBoE supports only QP1 (no QP0) 2010-10-13 09:38:11 -07:00
Makefile IB/uverbs: Export ib_umem_get()/ib_umem_release() to modules 2007-05-08 18:00:37 -07:00
multicast.c IB/mad: IBoE supports only QP1 (no QP0) 2010-10-13 09:38:11 -07:00
packer.c RDMA: Remove subversion $Id tags 2008-07-14 23:48:44 -07:00
sa_query.c RDMA/cm: Add RDMA CM support for IBoE devices 2010-10-13 15:46:43 -07:00
sa.h IB: Remove garbage non-ASCII characters from comments 2007-07-09 16:17:32 -07:00
smi.c IB/mad: Check hop count field in directed route MAD to avoid array overflow 2009-09-05 20:24:10 -07:00
smi.h IB/mad: Enable loopback of DR SMP responses from userspace 2008-01-25 14:15:25 -08:00
sysfs.c IB/core: Add link layer type information to sysfs 2010-10-25 10:20:39 -07:00
ucm.c IB/ucm: Use memdup_user() 2010-05-25 21:10:57 -07:00
ucma.c Merge branches 'amso1100', 'cma', 'cxgb3', 'cxgb4', 'ehca', 'iboe', 'ipoib', 'misc', 'mlx4', 'nes', 'qib' and 'srp' into for-next 2010-10-26 16:09:11 -07:00
ud_header.c IB/core: Add VLAN support for IBoE 2010-10-25 10:20:39 -07:00
umem.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
user_mad.c IB/umad: Make user_mad semaphore a real one 2010-09-28 20:52:21 -07:00
uverbs_cmd.c IB/uverbs: Return link layer type to userspace for query port operation 2010-10-25 10:20:39 -07:00
uverbs_main.c IB: Explicitly rule out llseek to avoid BKL in default_llseek() 2010-04-21 12:17:38 -07:00
uverbs_marshall.c
uverbs.h Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 2010-03-04 08:15:33 -08:00
verbs.c IB/core: Add link layer property to ports 2010-09-27 17:51:10 -07:00