Group fields used in TX path, and keep some cache lines mostly read
to permit sharing among cpus.
Gained two 4 bytes holes on 64bit arches.
Added a place holder for tcp tsq_flags, next to sk_wmem_alloc
to speed up tcp_wfree() in the following patch.
I have not added ____cacheline_aligned_in_smp, this might be done later.
I prefer doing this once inet and tcp/udp sockets reorg is also done.
Tested with both TCP and UDP.
UDP receiver performance under flood increased by ~20 % :
Accessing sk_filter/sk_wq/sk_napi_id no longer stalls because sk_drops
was moved away from a critical cache line, now mostly read and shared.
/* --- cacheline 4 boundary (256 bytes) --- */
unsigned int sk_napi_id; /* 0x100 0x4 */
int sk_rcvbuf; /* 0x104 0x4 */
struct sk_filter * sk_filter; /* 0x108 0x8 */
union {
struct socket_wq * sk_wq; /* 0x8 */
struct socket_wq * sk_wq_raw; /* 0x8 */
}; /* 0x110 0x8 */
struct xfrm_policy * sk_policy[2]; /* 0x118 0x10 */
struct dst_entry * sk_rx_dst; /* 0x128 0x8 */
struct dst_entry * sk_dst_cache; /* 0x130 0x8 */
atomic_t sk_omem_alloc; /* 0x138 0x4 */
int sk_sndbuf; /* 0x13c 0x4 */
/* --- cacheline 5 boundary (320 bytes) --- */
int sk_wmem_queued; /* 0x140 0x4 */
atomic_t sk_wmem_alloc; /* 0x144 0x4 */
long unsigned int sk_tsq_flags; /* 0x148 0x8 */
struct sk_buff * sk_send_head; /* 0x150 0x8 */
struct sk_buff_head sk_write_queue; /* 0x158 0x18 */
__s32 sk_peek_off; /* 0x170 0x4 */
int sk_write_pending; /* 0x174 0x4 */
long int sk_sndtimeo; /* 0x178 0x8 */
Signed-off-by: Eric Dumazet <edumazet@google.com>
Tested-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Adding a likely() in tcp_mtu_probe() moves its code which used to
be inlined in front of tcp_write_xmit()
We still have a cache line miss to access icsk->icsk_mtup.enabled,
we will probably have to reorganize fields to help data locality.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Always allow the two first skbs in write queue to be sent,
regardless of sk_wmem_alloc/sk_pacing_rate values.
This helps a lot in situations where TX completions are delayed either
because of driver latencies or softirq latencies.
Test is done with no cache line misses.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Under high load, tcp_wfree() has an atomic operation trying
to schedule a tasklet over and over.
We can schedule it only if our per cpu list was empty.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Under high stress, I've seen tcp_tasklet_func() consuming
~700 usec, handling ~150 tcp sockets.
By setting TCP_TSQ_DEFERRED in tcp_wfree(), we give a chance
for other cpus/threads entering tcp_write_xmit() to grab it,
allowing tcp_tasklet_func() to skip sockets that already did
an xmit cycle.
In the future, we might give to ACK processing an increased
budget to reduce even more tcp_tasklet_func() amount of work.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Instead of atomically clear TSQ_THROTTLED and atomically set TSQ_QUEUED
bits, use one cmpxchg() to perform a single locked operation.
Since the following patch will also set TCP_TSQ_DEFERRED here,
this cmpxchg() will make this addition free.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This is a cleanup, to ease code review of following patches.
Old 'enum tsq_flags' is renamed, and a new enumeration is added
with the flags used in cmpxchg() operations as opposed to
single bit operations.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Four fixes, the first for code we merged this cycle and three that are also
going to stable:
- On 64-bit Book3E we were not placing the .text section where we said we would
in the asm.
- We broke building the boot wrapper on some 32-bit toolchains.
- Lazy icache flushing was broken on pre-POWER5 machines.
- One of the error paths in our EEH code would lead to a deadlock.
Thanks to:
Andrew Donnellan, Ben Hutchings, Benjamin Herrenschmidt, Nicholas Piggin.
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Merge tag 'powerpc-4.9-7' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"Four fixes, the first for code we merged this cycle and three that are
also going to stable:
- On 64-bit Book3E we were not placing the .text section where we
said we would in the asm.
- We broke building the boot wrapper on some 32-bit toolchains.
- Lazy icache flushing was broken on pre-POWER5 machines.
- One of the error paths in our EEH code would lead to a deadlock.
Thanks to: Andrew Donnellan, Ben Hutchings, Benjamin Herrenschmidt,
Nicholas Piggin"
* tag 'powerpc-4.9-7' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/64: Fix placement of .text to be immediately following .head.text
powerpc/eeh: Fix deadlock when PE frozen state can't be cleared
powerpc/mm: Fix lazy icache flush on pre-POWER5
powerpc/boot: Fix build failure in 32-bit boot wrapper
In function lanai_dev_open(), when the call to ioremap() fails, the
value of return variable result is 0. 0 means no error in this context.
This patch fixes the bug, assigning "-ENOMEM" to result when ioremap()
returns a NULL pointer.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=188791
Signed-off-by: Pan Bian <bianpan2016@163.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In function lan78xx_probe(), variable ret takes the errno code on
failures. However, when the call to usb_alloc_urb() fails, its value
will keeps 0. 0 indicates success in the context, which is inconsistent
with the execution result. This patch fixes the bug, assigning
"-ENOMEM" to ret when usb_alloc_urb() returns a NULL pointer.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=188771
Signed-off-by: Pan Bian <bianpan2016@163.com>
Acked-by: Woojung Huh <woojung.huh@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Function br_sysfs_addbr() does not set error code when the call
kobject_create_and_add() returns a NULL pointer. It may be better to
return "-ENOMEM" when kobject_create_and_add() fails.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=188781
Signed-off-by: Pan Bian <bianpan2016@163.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Adding space after switch keyword before open
parenthesis for readability purpose.
This patch fixes the checkpatch.pl warning:
space required before the open parenthesis '('
Signed-off-by: Suraj Deshmukh <surajssd009005@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Function bnxt_hwrm_stat_ctx_alloc() always returns 0, even if the call
to _hwrm_send_message() fails. It may be better to propagate the errors
to the caller of bnxt_hwrm_stat_ctx_alloc().
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=188661
Signed-off-by: Pan Bian <bianpan2016@163.com>
Acked-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Chan says:
====================
bnxt_en: Add DCBNL support.
This series adds DCBNL operations to support host-based IEEE DCBX.
v2: Updated to the latest firmware interface spec.
David, please consider this series for net-next.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Report PFC statistics to ethtool -S and DCBNL.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Support only IEEE DCBX initially. Add IEEE DCBNL ops and functions to
get and set the hardware DCBX parameters. The DCB code is conditional on
Kconfig CONFIG_BNXT_DCB.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Latest interface has the latest DCB command structs. Get and store the
max number of lossless TCs the hardware can support.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add a new function bnxt_setup_mq_tc() to handle MQPRIO. This new function
will be called during ETS setup when we add DCBNL in the next patch.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alexander Duyck says:
====================
IPv4 FIB suffix length fixes
In reviewing the patch from Robert Shearman and looking over the code I
realized there were a few different bugs we were still carrying in the IPv4
FIB lookup code.
These two patches are based off of Robert's original patch, but take things
one step further by splitting them up to address two additional issues I
found.
So first have Robert's original patch which was addressing the fact that
us calling update_suffix in resize is expensive when it is called per add.
To address that I incorporated the core bit of the patch which was us
dropping the update_suffix call from resize.
The first patch in the series does a rename and fix on the push_suffix and
pull_suffix code. Specifically we drop the need to pass a leaf and
secondly we fix things so we pull the suffix as long as the value of the
suffix in the node is dropping.
The second patch addresses the original issue reported as well as
optimizing the code for the fact that update_suffix is only really meant to
go through and clean things up when we are decreasing a suffix. I had
originally added code for it to somehow cause an increase, but if we push
the suffix when a new leaf is added we only ever have to handle pulling
down the suffix with update_suffix so I updated the code to reflect that.
As far as side effects the only ones I think that will be obvious should be
the fact that some routes may be able to be found earlier since before we
relied on resize to update the suffix lengths, and now we are updating them
before we add or remove the leaf.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
It has been reported that update_suffix can be expensive when it is called
on a large node in which most of the suffix lengths are the same. The time
required to add 200K entries had increased from around 3 seconds to almost
49 seconds.
In order to address this we need to move the code for updating the suffix
out of resize and instead just have it handled in the cases where we are
pushing a node that increases the suffix length, or will decrease the
suffix length.
Fixes: 5405afd1a3 ("fib_trie: Add tracking value for suffix length")
Reported-by: Robert Shearman <rshearma@brocade.com>
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Reviewed-by: Robert Shearman <rshearma@brocade.com>
Tested-by: Robert Shearman <rshearma@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
It wasn't necessary to pass a leaf in when doing the suffix updates so just
drop it. Instead just pass the suffix and work with that.
Since we dropped the leaf there is no need to include that in the name so
the names are updated to node_push_suffix and node_pull_suffix.
Finally I noticed that the logic for pulling the suffix length back
actually had some issues. Specifically it would stop prematurely if there
was a longer suffix, but it was not as long as the original suffix. I
updated the code to address that in node_pull_suffix.
Fixes: 5405afd1a3 ("fib_trie: Add tracking value for suffix length")
Suggested-by: Robert Shearman <rshearma@brocade.com>
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Reviewed-by: Robert Shearman <rshearma@brocade.com>
Tested-by: Robert Shearman <rshearma@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
According to the documentation, the PHYs supported by this driver
can also support pause frames. Announce this to be so.
Tested with a TI83822I.
Acked-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This switch (default on) can be used to disable automatic registration
of connection tracking functionality in newly created network
namespaces.
This means that when net namespace goes down (or the tracker protocol
module is unloaded) we *might* have to unregister the hooks.
We can either add another per-netns variable that tells if
the hooks got registered by default, or, alternatively, just call
the protocol _put() function and have the callee deal with a possible
'extra' put() operation that doesn't pair with a get() one.
This uses the latter approach, i.e. a put() without a get has no effect.
Conntrack is still enabled automatically regardless of the new sysctl
setting if the new net namespace requires connection tracking, e.g. when
NAT rules are created.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This makes use of nf_ct_netns_get/put added in previous patch.
We add get/put functions to nf_conntrack_l3proto structure, ipv4 and ipv6
then implement use-count to track how many users (nft or xtables modules)
have a dependency on ipv4 and/or ipv6 connection tracking functionality.
When count reaches zero, the hooks are unregistered.
This delays activation of connection tracking inside a namespace until
stateful firewall rule or nat rule gets added.
This patch breaks backwards compatibility in the sense that connection
tracking won't be active anymore when the protocol tracker module is
loaded. This breaks e.g. setups that ctnetlink for flow accounting and
the like, without any '-m conntrack' packet filter rules.
Followup patch restores old behavour and makes new delayed scheme
optional via sysctl.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
so that conntrack core will add the needed hooks in this namespace.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
MASQUERADE, S/DNAT and REDIRECT already call functions that depend on the
conntrack module.
However, since the conntrack hooks are now registered in a lazy fashion
(i.e., only when needed) a symbol reference is not enough.
Thus, when something is added to a nat table, make sure that it will see
packets by calling nf_ct_netns_get() which will register the conntrack
hooks in the current netns.
An alternative would be to add these dependencies to the NAT table.
However, that has problems when using non-modular builds -- we might
register e.g. ipv6 conntrack before its initcall has run, leading to NULL
deref crashes since its per-netns storage has not yet been allocated.
Adding the dependency in the modules instead has the advantage that nat
table also does not register its hooks until rules are added.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
currently aliased to try_module_get/_put.
Will be changed in next patch when we add functions to make use of ->net
argument to store usercount per l3proto tracker.
This is needed to avoid registering the conntrack hooks in all netns and
later only enable connection tracking in those that need conntrack.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
since adf0516845 ("netfilter: remove ip_conntrack* sysctl compat code")
the only user (ipv4 tracker) sets this to an empty stub function.
After this change nf_ct_l3proto_pernet_register() is also empty,
but this will change in a followup patch to add conditional register
of the hooks.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
CONFIG_NF_CT_PROTO_UDPLITE is no more a tristate. When set to y,
connection tracking support for UDPlite protocol is built-in into
nf_conntrack.ko.
footprint test:
$ ls -l net/netfilter/nf_conntrack{_proto_udplite,}.ko \
net/ipv4/netfilter/nf_conntrack_ipv4.ko \
net/ipv6/netfilter/nf_conntrack_ipv6.ko
(builtin)|| udplite| ipv4 | ipv6 |nf_conntrack
---------++--------+--------+--------+--------------
none || 432538 | 828755 | 828676 | 6141434
UDPlite || - | 829649 | 829362 | 6498204
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
CONFIG_NF_CT_PROTO_SCTP is no more a tristate. When set to y, connection
tracking support for SCTP protocol is built-in into nf_conntrack.ko.
footprint test:
$ ls -l net/netfilter/nf_conntrack{_proto_sctp,}.ko \
net/ipv4/netfilter/nf_conntrack_ipv4.ko \
net/ipv6/netfilter/nf_conntrack_ipv6.ko
(builtin)|| sctp | ipv4 | ipv6 | nf_conntrack
---------++--------+--------+--------+--------------
none || 498243 | 828755 | 828676 | 6141434
SCTP || - | 829254 | 829175 | 6547872
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
CONFIG_NF_CT_PROTO_DCCP is no more a tristate. When set to y, connection
tracking support for DCCP protocol is built-in into nf_conntrack.ko.
footprint test:
$ ls -l net/netfilter/nf_conntrack{_proto_dccp,}.ko \
net/ipv4/netfilter/nf_conntrack_ipv4.ko \
net/ipv6/netfilter/nf_conntrack_ipv6.ko
(builtin)|| dccp | ipv4 | ipv6 | nf_conntrack
---------++--------+--------+--------+--------------
none || 469140 | 828755 | 828676 | 6141434
DCCP || - | 830566 | 829935 | 6533526
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
To allow usage of enum ip_conntrack_dir in include/net/netns/conntrack.h,
this patch encloses #include <linux/netfilter.h> in a #ifndef __KERNEL__
directive, so that compiler errors caused by unwanted inclusion of
include/linux/netfilter.h are avoided.
In addition, #include <linux/netfilter/nf_conntrack_common.h> line has
been added to resolve correctly CTINFO2DIR macro.
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Acked-by: Mikko Rapeli <mikko.rapeli@iki.fi>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Simon Horman says:
====================
IPVS Updates for v4.10
please consider these enhancements to the IPVS for v4.10.
* Decrement the IP ttl in all the modes in order to prevent infinite
route loops. Thanks to Dwip Banerjee.
* Use IS_ERR_OR_NULL macro. Clean-up from Gao Feng.
====================
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
So we can autoload nfnetlink_log.ko when the user adding nft log
group X rule in netdev family.
Signed-off-by: Liping Zhang <zlpnobody@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
In netdev family, we will handle non ethernet packets, so using
eth_hdr(skb)->h_proto is incorrect.
Meanwhile, we can use socket(AF_PACKET...) to sending packets, so
skb->protocol is not always set in bridge family.
Add an extra parameter into nf_log_l2packet to solve this issue.
Fixes: 1fddf4bad0 ("netfilter: nf_log: add packet logging for netdev family")
Signed-off-by: Liping Zhang <zlpnobody@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
CONFIG_NF_NAT_PROTO_UDPLITE is no more a tristate. When set to y, NAT
support for UDPlite protocol is built-in into nf_nat.ko.
footprint test:
(nf_nat_proto_) |udplite || nf_nat
--------------------------+--------++--------
no builtin | 408048 || 2241312
UDPLITE builtin | - || 2577256
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
CONFIG_NF_NAT_PROTO_SCTP is no more a tristate. When set to y, NAT
support for SCTP protocol is built-in into nf_nat.ko.
footprint test:
(nf_nat_proto_) | sctp || nf_nat
--------------------------+--------++--------
no builtin | 428344 || 2241312
SCTP builtin | - || 2597032
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
CONFIG_NF_NAT_PROTO_DCCP is no more a tristate. When set to y, NAT
support for DCCP protocol is built-in into nf_nat.ko.
footprint test:
(nf_nat_proto_) | dccp || nf_nat
--------------------------+--------++--------
no builtin | 409800 || 2241312
DCCP builtin | - || 2578968
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
The email address has changed, let's update the copyright statements.
Signed-off-by: Arturo Borrero Gonzalez <arturo@debian.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
In function dcbnl_cee_fill(), returns the value of variable err on
errors. However, on some error paths (e.g. nla put fails), its value may
be 0. It may be better to explicitly set a negative errno to variable
err before returning.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=188881
Signed-off-by: Pan Bian <bianpan2016@163.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Implemented RFC7527 Enhanced DAD.
IPv6 duplicate address detection can fail if there is some temporary
loopback of Ethernet frames. RFC7527 solves this by including a random
nonce in the NS messages used for DAD, and if an NS is received with the
same nonce it is assumed to be a looped back DAD probe and is ignored.
RFC7527 is enabled by default. Can be disabled by setting both of
conf/{all,interface}/enhanced_dad to zero.
Signed-off-by: Erik Nordmark <nordmark@arista.com>
Signed-off-by: Bob Gilligan <gilligan@arista.com>
Reviewed-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Andrew Lunn says:
====================
mv88e6390 batch 3
More patches to support the MV88e6390. This is mostly refactoring
existing code and adding implementations for the mv88e6390. This
patchset set which reserved frames are sent to the cpu, the size of
jumbo frames that will be accepted, turn off egress rate limiting, and
configuration of pause frames.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
The mv88e6390 has a number flow control registers accessed via the
Flow Control register. Use these to set the pause control.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
The mv88e6390 has a different mechanism for configuring pause.
Refactor the code into an ops function, and for the moment, don't add
any mv88e6390 code yet.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
There are two different rate limiting configurations, depending on the
switch generation. Refactor this into ops.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Some switches support jumbo frames. Refactor this code into operations
in the ops structure.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Older devices have a couple of registers in global2. The mv88e6390
family has a single register in global1 behind which hides similar
configuration. Implement and op for this.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Andrew Lunn says:
====================
MV88E6390 batch two
This is the second batch of patches adding support for the
MV88e6390. They are not sufficient to make it work properly.
The mv88e6390 has a much expanded set of priority maps. Refactor the
existing code, and implement basic support for the new device.
Similarly, the monitor control register has been reworked.
The mv88e6390 has something odd in its EDSA tagging implementation,
which means it is not possible to use it. So we need to use DSA
tagging. This is the first device with EDSA support where we need to
use DSA, and the code does not support this. So two patches refactor
the existing code. The two different register definitions are
separated out, and using DSA on an EDSA capable device is added.
v2:
Add port prefix
Add helper function for 6390
Add _IEEE_ into #defines
Split monitor_ctrl into a number of separate ops.
Remove 6390 code which is management, used in a later patch
s/EGREES/EGRESS/.
Broke up setup_port_dsa() and set_port_dsa() into a number of ops
v3:
Verify mandatory ops for port setup
Don't set ether type for DSA port.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet