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Break mid deletion into two function, so it will be possible in the future
to delete a mid entry for other reasons then switchdev command (like port
deletion).
Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Attach mid getting and releasing mid id to the HW write / remove, and add
a flag to indicate whether the mid is in the HW. It is done because mid id
is also HW index to this mid.
This change allows adding in the following patches the ability to have a
mid in the mdb cache but not in the HW. It will be useful for being able
to disable the multicast.
It means that the mdb is being written / delete to the HW in the mid
allocation / removing function, not after them.
Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Break the smid write function into two, one that cleans the ports that
might be still written there and one that changes an exiting mid entry.
Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Instead of saving all the mids in the same list, save them per vlan
device. This change allows a more efficient mid find.
Also, in the next patches, there will be added a lot of loops over all the
mids in bridge device for multicast disable, mrouter change and ndb flush.
Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Since there is a bitmap for the ports registered to each mid, there is no
need for a ref count, since it will always be the number of set bits in
this bitmap. Any check of the ref count was replaced with checking if the
bitmap is empty.
Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add a bitmap of ports to the mid struct to hold the ports that are
registered to this mid.
Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Change the naming of mc_router to mrouter to keep consistency.
Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add 0x50a5, 0x50a6, 0x50a7, 0x50a8 and 0x50a9 T5 device
id's.
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Fainelli says:
====================
blackfin: Drop non-functional DSA code
I sent those many months ago in the hope that the bfin-linux people
would pick those patches but nobody seems to be responding, can you
queue those via net-next since this affects DSA?
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
There is no in tree driver for the KSZ8893M switch driver, so just get rid of
the code in that board file.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Nothing in that file uses definitions from that header, so just get rid of it.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Instead of open coding the check.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This reverts commit 00ba4cb36da682c68dc87d1703a8aaffe2b4e9c5.
Discussion with David Ahern determined that this change is
actually not needed.
Signed-off-by: David S. Miller <davem@davemloft.net>
The commit 6b229cf77d68 ("udp: add batching to udp_rmem_release()")
reduced greatly the cacheline contention between the BH and the US
reader batching the rmem updates in most scenarios.
Such optimization is explicitly avoided if the US reader is faster
then BH processing.
My fault, I initially suggested this kind of behavior due to concerns
of possible regressions with small sk_rcvbuf values. Tests showed
such concerns are misplaced, so this commit relaxes the condition
for rmem bulk updates, obtaining small but measurable performance
gain in the scenario described above.
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch tries to add XDP_REDIRECT for virtio-net. The changes are
not complex as we could use exist XDP_TX helpers for most of the
work. The rest is passing the XDP_TX to NAPI handler for implementing
batching.
Cc: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
There's no need to add packet len average in the case of XDP_PASS
since it will be done soon after skb is created.
Cc: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Make the driver react to device tree "fixed-link" declaration on CPU port.
- turn off autonegotiation
- force speed 10 or 100 mb/s
- force duplex mode
Signed-off-by: Egil Hjelmeland <privat@egil-hjelmeland.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently, when an interface is released from a bridge via
ioctl(), we get a RTM_DELLINK event through netlink:
Deleted 2: dummy0: <BROADCAST,NOARP,UP,LOWER_UP> mtu 1500 master bridge0 state UNKNOWN
link/ether 6e:23:c2:54:3a:b3
Userspace has to interpret that as a removal from the bridge, not as a
complete removal of the interface. When an bridged interface is
completely removed, we get two events:
Deleted 2: dummy0: <BROADCAST,NOARP> mtu 1500 master bridge0 state DOWN
link/ether 6e:23:c2:54:3a:b3
Deleted 2: dummy0: <BROADCAST,NOARP> mtu 1500 qdisc noop state DOWN group default
link/ether 6e:23:c2:54:3a:b3 brd ff:ff:ff:ff:ff:ff
In constrast, when an interface is released from a bond, we get a
RTM_NEWLINK with only the new characteristics (no master):
3: dummy1: <BROADCAST,NOARP,SLAVE,UP,LOWER_UP> mtu 1500 qdisc noqueue master bond0 state UNKNOWN group default
link/ether ae:dc:7a:8c:9a:3c brd ff:ff:ff:ff:ff:ff
3: dummy1: <BROADCAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN group default
link/ether ae:dc:7a:8c:9a:3c brd ff:ff:ff:ff:ff:ff
4: bond0: <BROADCAST,MULTICAST,MASTER,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default
link/ether ae:dc:7a:8c:9a:3c brd ff:ff:ff:ff:ff:ff
3: dummy1: <BROADCAST,NOARP> mtu 1500 qdisc noqueue state DOWN group default
link/ether ae:dc:7a:8c:9a:3c brd ff:ff:ff:ff:ff:ff
3: dummy1: <BROADCAST,NOARP> mtu 1500 qdisc noqueue state DOWN group default
link/ether ca:c8:7b:66:f8:25 brd ff:ff:ff:ff:ff:ff
4: bond0: <BROADCAST,MULTICAST,MASTER,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default
link/ether ae:dc:7a:8c:9a:3c brd ff:ff:ff:ff:ff:ff
Userland may be confused by the fact we say a link is deleted while
its characteristics are only modified. A first solution would have
been to turn the RTM_DELLINK event in del_nbp() into a RTM_NEWLINK
event. However, maybe some piece of userland is relying on this
RTM_DELLINK to detect when a bridged interface is released. Instead,
we also emit a RTM_NEWLINK event once the interface is
released (without master info).
Deleted 2: dummy0: <BROADCAST,NOARP,UP,LOWER_UP> mtu 1500 master bridge0 state UNKNOWN
link/ether 8a:bb:e7:94:b1:f8
2: dummy0: <BROADCAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN group default
link/ether 8a:bb:e7:94:b1:f8 brd ff:ff:ff:ff:ff:ff
This is done only when using ioctl(). When using Netlink, such an
event is already automatically emitted in do_setlink().
Signed-off-by: Vincent Bernat <vincent@bernat.im>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch checks data first at one place, return if it's null.
Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In ipv6_skip_exthdr, the lengh of AH header is computed manually
as (hp->hdrlen+2)<<2. However, in include/linux/ipv6.h, a macro
named ipv6_authlen is already defined for exactly the same job. This
commit replaces the manual computation code with the macro.
Signed-off-by: Xiang Gao <qasdfgtyuiop@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet says:
====================
net: speedup netns create/delete time
When rate of netns creation/deletion is high enough,
we observe softlockups in cleanup_net() caused by huge list
of netns and way too many rcu_barrier() calls.
This patch series does some optimizations in kobject,
and add batching to tunnels so that netns dismantles are
less costly.
IPv6 addrlabels also get a per netns list, and tcp_metrics
also benefit from batch flushing.
This gives me one order of magnitude gain.
(~50 ms -> ~5 ms for one netns create/delete pair)
Tested:
for i in `seq 1 40`
do
(for j in `seq 1 100` ; do unshare -n /bin/true >/dev/null ; done) &
done
wait ; grep net_namespace /proc/slabinfo
Before patch series :
$ time ./add_del_unshare.sh
net_namespace 116 258 5504 1 2 : tunables 8 4 0 : slabdata 116 258 0
real 3m24.910s
user 0m0.747s
sys 0m43.162s
After :
$ time ./add_del_unshare.sh
net_namespace 135 291 5504 1 2 : tunables 8 4 0 : slabdata 135 291 0
real 0m22.117s
user 0m0.728s
sys 0m35.328s
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
When dealing with a list of dismantling netns, we can scan
tcp_metrics once, saving cpu cycles.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Having a global list of labels do not scale to thousands of
netns in the cloud era. This causes quadratic behavior on
netns creation and deletion.
This is time having a per netns list of ~10 labels.
Tested:
$ time perf record (for f in `seq 1 3000` ; do ip netns add tast$f; done)
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 3.637 MB perf.data (~158898 samples) ]
real 0m20.837s # instead of 0m24.227s
user 0m0.328s
sys 0m20.338s # instead of 0m23.753s
16.17% ip [kernel.kallsyms] [k] netlink_broadcast_filtered
12.30% ip [kernel.kallsyms] [k] netlink_has_listeners
6.76% ip [kernel.kallsyms] [k] _raw_spin_lock_irqsave
5.78% ip [kernel.kallsyms] [k] memset_erms
5.77% ip [kernel.kallsyms] [k] kobject_uevent_env
5.18% ip [kernel.kallsyms] [k] refcount_sub_and_test
4.96% ip [kernel.kallsyms] [k] _raw_read_lock
3.82% ip [kernel.kallsyms] [k] refcount_inc_not_zero
3.33% ip [kernel.kallsyms] [k] _raw_spin_unlock_irqrestore
2.11% ip [kernel.kallsyms] [k] unmap_page_range
1.77% ip [kernel.kallsyms] [k] __wake_up
1.69% ip [kernel.kallsyms] [k] strlen
1.17% ip [kernel.kallsyms] [k] __wake_up_common
1.09% ip [kernel.kallsyms] [k] insert_header
1.04% ip [kernel.kallsyms] [k] page_remove_rmap
1.01% ip [kernel.kallsyms] [k] consume_skb
0.98% ip [kernel.kallsyms] [k] netlink_trim
0.51% ip [kernel.kallsyms] [k] kernfs_link_sibling
0.51% ip [kernel.kallsyms] [k] filemap_map_pages
0.46% ip [kernel.kallsyms] [k] memcpy_erms
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We can build one skb and let it be cloned in netlink.
This is much faster, and use less memory (all clones will
share the same skb->head)
Tested:
time perf record (for f in `seq 1 3000` ; do ip netns add tast$f; done)
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 4.110 MB perf.data (~179584 samples) ]
real 0m24.227s # instead of 0m52.554s
user 0m0.329s
sys 0m23.753s # instead of 0m51.375s
14.77% ip [kernel.kallsyms] [k] __ip6addrlbl_add
14.56% ip [kernel.kallsyms] [k] netlink_broadcast_filtered
11.65% ip [kernel.kallsyms] [k] netlink_has_listeners
6.19% ip [kernel.kallsyms] [k] _raw_spin_lock_irqsave
5.66% ip [kernel.kallsyms] [k] kobject_uevent_env
4.97% ip [kernel.kallsyms] [k] memset_erms
4.67% ip [kernel.kallsyms] [k] refcount_sub_and_test
4.41% ip [kernel.kallsyms] [k] _raw_read_lock
3.59% ip [kernel.kallsyms] [k] refcount_inc_not_zero
3.13% ip [kernel.kallsyms] [k] _raw_spin_unlock_irqrestore
1.55% ip [kernel.kallsyms] [k] __wake_up
1.20% ip [kernel.kallsyms] [k] strlen
1.03% ip [kernel.kallsyms] [k] __wake_up_common
0.93% ip [kernel.kallsyms] [k] consume_skb
0.92% ip [kernel.kallsyms] [k] netlink_trim
0.87% ip [kernel.kallsyms] [k] insert_header
0.63% ip [kernel.kallsyms] [k] unmap_page_range
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
No need to iterate over strings, just copy in one efficient memcpy() call.
Tested:
time perf record "(for f in `seq 1 3000` ; do ip netns add tast$f; done)"
[ perf record: Woken up 10 times to write data ]
[ perf record: Captured and wrote 8.224 MB perf.data (~359301 samples) ]
real 0m52.554s # instead of 1m7.492s
user 0m0.309s
sys 0m51.375s # instead of 1m6.875s
9.88% ip [kernel.kallsyms] [k] netlink_broadcast_filtered
8.86% ip [kernel.kallsyms] [k] string
7.37% ip [kernel.kallsyms] [k] __ip6addrlbl_add
5.68% ip [kernel.kallsyms] [k] netlink_has_listeners
5.52% ip [kernel.kallsyms] [k] memcpy_erms
4.76% ip [kernel.kallsyms] [k] __alloc_skb
4.54% ip [kernel.kallsyms] [k] vsnprintf
3.94% ip [kernel.kallsyms] [k] format_decode
3.80% ip [kernel.kallsyms] [k] kmem_cache_alloc_node_trace
3.71% ip [kernel.kallsyms] [k] kmem_cache_alloc_node
3.66% ip [kernel.kallsyms] [k] kobject_uevent_env
3.38% ip [kernel.kallsyms] [k] strlen
2.65% ip [kernel.kallsyms] [k] _raw_spin_lock_irqsave
2.20% ip [kernel.kallsyms] [k] kfree
2.09% ip [kernel.kallsyms] [k] memset_erms
2.07% ip [kernel.kallsyms] [k] ___cache_free
1.95% ip [kernel.kallsyms] [k] kmem_cache_free
1.91% ip [kernel.kallsyms] [k] _raw_read_lock
1.45% ip [kernel.kallsyms] [k] ksize
1.25% ip [kernel.kallsyms] [k] _raw_spin_unlock_irqrestore
1.00% ip [kernel.kallsyms] [k] widen_string
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This removes some #ifdef pollution and will ease follow up patches.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
gen estimator has been rewritten in commit 1c0d32fde5bd
("net_sched: gen_estimator: complete rewrite of rate estimators"),
the caller no longer needs to wait for a grace period. So this
patch gets rid of it.
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: Eric Dumazet <edumazet@google.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If the hash to port mapping table does not have a valid port (i.e. when
a port goes down), fall back to the simple hashing mechanism to avoid
dropping packets.
Signed-off-by: Jim Hanko <hanko@drivescale.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Westphal says:
====================
test_rhashtable: don't allocate huge static array
Add a test case for the rhlist interface.
While at it, cleanup current rhashtable test a bit and add a check
for max_size support.
No changes since v1, except in last patch.
kbuild robot complained about large onstack allocation caused by
struct rhltable when lockdep is enabled.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
also test rhltable. rhltable remove operations are slow as
deletions require a list walk, thus test with 1/16th of the given
entry count number to get a run duration similar to rhashtable one.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
add a test that tries to insert more than max_size elements.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
pass the entries to test as an argument instead.
Followup patch will add an rhlist test case; rhlist delete opererations
are slow so we need to use a smaller number to test it.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Fainelli says:
====================
net: dsa: b53/bcm_sf2 cleanups
This patch series is a first pass set of clean-ups to reduce the number of LOCs
between b53 and bcm_sf2 and sharing as many functions as possible.
There is a number of additional cleanups queued up locally that require more
thorough testing.
Changes in v3:
- remove one extra argument for the b53_build_io_op macro (David Laight)
- added additional Reviewed-by tags from Vivien
Changes in v2:
- added Reviewed-by tags from Vivien
- added a missing EXPORT_SYMBOL() in patch 8
- fixed a typo in patch 5
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Export b53_{enable,disable}_port and use these two functions in
bcm_sf2_port_setup and bcm_sf2_port_disable. The generic functions
cannot be used without wrapping because we need to manage additional
switch integration details (PHY, Broadcom tag etc.).
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The magic number 8 in 3 locations in bcm_sf2_cfp.c actually designates
the number of switch port egress queues, so use that define instead of
open-coding it.
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
bcm_sf2 and b53 do exactly the same thing, so share that piece.
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add support for enabling and disabling EEE, as well as re-negotiating it in
.adjust_link() and in .port_enable().
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Move the bcm_sf2 EEE-related functions to the b53 driver because this is shared
code amongst Gigabit capable switch, only 5325 and 5365 are too old to support
that.
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In preparation for migrating the EEE code from bcm_sf2 to b53, define the full
EEE register page and offsets within that page.
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The code to enable Broadcom tags/headers is largely switch independent,
and in preparation for enabling it for multiple devices with b53, move
the code we have in bcm_sf2.c to b53_common.c
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Instead of repeating the same pattern: acquire mutex, read/write,
release mutex, define a macro: b53_build_op() which takes the type
(read|write), I/O size, and value (scalar or pointer). This helps with
fixing bugs that could exist (e.g: missing barrier, lock etc.).
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
There is no need to configure the enabled ports once in bcm_sf2_sw_setup() and
then a second time around when dsa_switch_ops::port_enable is called, just do
it when port_enable is called which is better in terms of power consumption and
correctness.
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
There is no need to configure the enabled ports once in b53_setup() and then a
second time around when dsa_switch_ops::port_enable is called, just do it when
port_enable is called which is better in terms of power consumption and
correctness.
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In preparation for future changes allowing the configuring of multiple
CPU ports, make b53_enable_cpu_port() take a port argument.
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This is not used anywhere, so remove it.
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vivien Didelot says:
====================
net: dsa: move master ethtool code
The DSA core overrides the master device's ethtool_ops structure so that
it can inject statistics and such of its dedicated switch CPU port.
This ethtool code is currently called on unnecessary conditions or
before the master interface and its switch CPU port get wired up.
This patchset fixes this.
Similarly to slave.c where the DSA slave net_device is the entry point
of the dsa_slave_* functions, this patchset also isolates the master's
ethtool code in a new master.c file, where the DSA master net_device is
the entry point of the dsa_master_* functions.
This is a first step towards better control of the master device and
support for multiple CPU ports.
====================
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
