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Stefan Chulski 4ad29b1a48 net: mvpp2: Add parsing support for different IPv4 IHL values
Add parser entries for different IPv4 IHL values.
Each entry will set the L4 header offset according to the IPv4 IHL field.
L3 header offset will set during the parsing of the IPv4 protocol.

Because of missed parser support for IP header length > 20, RX IPv4 checksum HW offload fails
and skb->ip_summed set to CHECKSUM_NONE(checksum done by Network stack).
This patch adds RX IPv4 checksum HW offload capability for frames with IP header length > 20.

v1 --> v2
- Improve commit message.

Suggested-by: Dana Vardi <danat@marvell.com>
Signed-off-by: Stefan Chulski <stefanc@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-16 15:29:40 -07:00
David S. Miller af1fa6b696 Merge branch 'r8152--new-chips'
Hayes Wang says:

====================
r8152: support new chips

Support new RTL8153 and RTL8156 series.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-16 15:28:32 -07:00
Hayes Wang c2198943e3 r8152: search the configuration of vendor mode
The vendor mode is not always at config #1, so it is necessary to
set the correct configuration number.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-16 15:28:31 -07:00
Hayes Wang 4a51b0e8a0 r8152: support PHY firmware for RTL8156 series
Support new firmware type and method for RTL8156 series.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-16 15:28:31 -07:00
Hayes Wang 195aae321c r8152: support new chips
Support RTL8153C, RTL8153D, RTL8156A, and RTL8156B. The RTL8156A
and RTL8156B are the 2.5G ethernet.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-16 15:28:31 -07:00
Hayes Wang 67ce1a806f r8152: add help function to change mtu
The different chips may have different requests when changing mtu.
Therefore, add a new help function of rtl_ops to change mtu. Besides,
reset the tx/rx after changing mtu.

Additionally, add mtu_to_size() and size_to_mtu() macros to simplify
the code.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-16 15:28:31 -07:00
Hayes Wang a8a7be178e r8152: adjust rtl8152_check_firmware function
Use bits operations to record and check the firmware.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-16 15:28:31 -07:00
Hayes Wang 5133bcc748 r8152: set inter fram gap time depending on speed
Set the maximum inter frame gap time (144ns) for speed 10M/half and
100M/half. It improves the performance for those speeds. And, there
is no effect for the other speeds.

For 10M/half and 100M/half, the fast inter frame gap time let the
device couldn't use the feature of the aggregation effectively,
because the transfer would be completed fastly. Therefore, use the
maximum value to improve the effect of the aggregation. However, you
may not feel the improvement for fast CPUs, because they compensate
for the effect of the aggregation.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-16 15:28:31 -07:00
Ilya Lipnitskiy c5d66587b8 net: ethernet: mediatek: ppe: fix busy wait loop
The intention is for the loop to timeout if the body does not succeed.
The current logic calls time_is_before_jiffies(timeout) which is false
until after the timeout, so the loop body never executes.

Fix by using readl_poll_timeout as a more standard and less error-prone
solution.

Fixes: ba37b7caf1 ("net: ethernet: mtk_eth_soc: add support for initializing the PPE")
Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>
Cc: Felix Fietkau <nbd@nbd.name>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-16 15:24:18 -07:00
David S. Miller c133acf38c Merge branch 'mptcp-socket-options'
Mat Martineau says:

====================
mptcp: Improve socket option handling

MPTCP sockets have previously had limited socket option support. The
architecture of MPTCP sockets (one userspace-facing MPTCP socket that
manages one or more in-kernel TCP subflow sockets) adds complexity for
passing options through to lower levels. This patch set adds MPTCP
support for socket options commonly used with TCP.

Patch 1 reverts an interim socket option fix (a socket option blocklist)
that was merged in the net tree for v5.12.

Patch 2 moves the socket option code to a separate file, with no
functional changes.

Patch 3 adds an allowlist for socket options that are known to function
with MPTCP. Later patches in this set add more allowed options.

Patches 4 and 5 add infrastructure for syncing MPTCP-level options with
the TCP subflows.

Patches 6-12 add support for specific socket options.

Patch 13 adds a socket option self test.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-16 15:23:10 -07:00
Florian Westphal dc65fe82fb selftests: mptcp: add packet mark test case
Extend mptcp_connect tool with SO_MARK support (-M <value>) and
add a test case that checks that the packet mark gets copied to all
subflows.

This is done by only allowing packets with either skb->mark 1 or 2
via iptables.

DROP rule packet counter is checked; if its not zero, print an error
message and fail the test case.

Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-16 15:23:10 -07:00
Florian Westphal aa1fbd94e5 mptcp: sockopt: add TCP_CONGESTION and TCP_INFO
TCP_CONGESTION is set for all subflows.
The mptcp socket gains icsk_ca_ops too so it can be used to keep the
authoritative state that should be set on new/future subflows.

TCP_INFO will return first subflow only.
The out-of-tree kernel has a MPTCP_INFO getsockopt, this could be added
later on.

Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-16 15:23:10 -07:00
Florian Westphal a03c99b253 mptcp: setsockopt: SO_DEBUG and no-op options
Handle SO_DEBUG and set it on all subflows.
Ignore those values not implemented on TCP sockets.

Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-16 15:23:10 -07:00
Florian Westphal 6f0d719808 mptcp: setsockopt: add SO_INCOMING_CPU
Replicate to all subflows.

Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-16 15:23:10 -07:00
Florian Westphal 36704413db mptcp: setsockopt: add SO_MARK support
Value is synced to all subflows.

Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-16 15:23:10 -07:00
Florian Westphal 268b123874 mptcp: setsockopt: support SO_LINGER
Similar to PRIORITY/KEEPALIVE: needs to be mirrored to all subflows.

Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-16 15:23:10 -07:00
Florian Westphal 5d0a6bc82d mptcp: setsockopt: handle receive/send buffer and device bind
Similar to previous patch: needs to be mirrored to all subflows.

Device bind is simpler: it is only done on the initial (listener) sk.

Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-16 15:23:10 -07:00
Florian Westphal 1b3e7ede13 mptcp: setsockopt: handle SO_KEEPALIVE and SO_PRIORITY
start with something simple: both take an integer value, both
need to be mirrored to all subflows.

Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-16 15:23:10 -07:00
Florian Westphal df00b087da mptcp: tag sequence_seq with socket state
Paolo Abeni suggested to avoid re-syncing new subflows because
they inherit options from listener. In case options were set on
listener but are not set on mptcp-socket there is no need to
do any synchronisation for new subflows.

This change sets sockopt_seq of new mptcp sockets to the seq of
the mptcp listener sock.

Subflow sequence is set to the embedded tcp listener sk.
Add a comment explaing why sk_state is involved in sockopt_seq
generation.

Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-16 15:23:10 -07:00
Florian Westphal 7896248983 mptcp: add skeleton to sync msk socket options to subflows
Handle following cases:
1. setsockopt is called with multiple subflows.
   Change might have to be mirrored to all of them.
   This is done directly in process context/setsockopt call.
2. Outgoing subflow is created after one or several setsockopt()
   calls have been made.  Old setsockopt changes should be
   synced to the new socket.
3. Incoming subflow, after setsockopt call(s).

Cases 2 and 3 are handled right after the join list is spliced to the conn
list.

Not all sockopt values can be just be copied by value, some require
helper calls.  Those can acquire socket lock (which can sleep).

If the join->conn list splicing is done from preemptible context,
synchronization can be done right away, otherwise its deferred to work
queue.

Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-16 15:23:10 -07:00
Paolo Abeni d9e4c12918 mptcp: only admit explicitly supported sockopt
Unrolling mcast state at msk dismantel time is bug prone, as
syzkaller reported:

======================================================
WARNING: possible circular locking dependency detected
5.11.0-syzkaller #0 Not tainted
------------------------------------------------------
syz-executor905/8822 is trying to acquire lock:
ffffffff8d678fe8 (rtnl_mutex){+.+.}-{3:3}, at: ipv6_sock_mc_close+0xd7/0x110 net/ipv6/mcast.c:323

but task is already holding lock:
ffff888024390120 (sk_lock-AF_INET6){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1600 [inline]
ffff888024390120 (sk_lock-AF_INET6){+.+.}-{0:0}, at: mptcp6_release+0x57/0x130 net/mptcp/protocol.c:3507

which lock already depends on the new lock.

Instead we can simply forbid any mcast-related setsockopt.
Let's do the same with all other non supported sockopts.

Fixes: 717e79c867 ("mptcp: Add setsockopt()/getsockopt() socket operations")
Co-developed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-16 15:23:09 -07:00
Paolo Abeni 0abdde82b1 mptcp: move sockopt function into a new file
The MPTCP sockopt implementation is going to be much
more big and complex soon. Let's move it to a different
source file.

No functional change intended.

Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-16 15:23:09 -07:00
Matthieu Baerts bd005f5386 mptcp: revert "mptcp: forbit mcast-related sockopt on MPTCP sockets"
This change reverts commit 86581852d7 ("mptcp: forbit mcast-related sockopt on MPTCP sockets").

As announced in the cover letter of the mentioned patch above, the
following commits introduce a larger MPTCP sockopt implementation
refactor.

This time, we switch from a blocklist to an allowlist. This is safer for
the future where new sockoptions could be added while not being fully
supported with MPTCP sockets and thus causing unstabilities.

Suggested-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-16 15:23:09 -07:00
Gatis Peisenieks a1150a04b7 atl1c: move tx cleanup processing out of interrupt
Tx queue cleanup happens in interrupt handler on same core as rx queue
processing. Both can take considerable amount of processing in high
packet-per-second scenarios.

Sending big amounts of packets can stall the rx processing which is
unfair and also can lead to out-of-memory condition since
__dev_kfree_skb_irq queues the skbs for later kfree in softirq which
is not allowed to happen with heavy load in interrupt handler.

This puts tx cleanup in its own napi and enables threaded napi to
allow the rx/tx queue processing to happen on different cores.

The ability to sustain equal amounts of tx/rx traffic increased:
from 280Kpps to 1130Kpps on Threadripper 3960X with upcoming
Mikrotik 10/25G NIC,
from 520Kpps to 850Kpps on Intel i3-3320 with Mikrotik RB44Ge adapter.

Signed-off-by: Gatis Peisenieks <gatis@mikrotik.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-16 15:16:54 -07:00
David S. Miller 2576e5d31f Merge branch 'BR_FDB_LOCAL'
Vladimir Oltean says:

====================
Pass the BR_FDB_LOCAL information to switchdev drivers

Bridge FDB entries with the is_local flag are entries which are
terminated locally and not forwarded. Switchdev drivers might want to be
notified of these addresses so they can trap them. If they don't program
these entries to hardware, there is no guarantee that they will do the
right thing with these entries, and they won't be, let's say, flooded.

Ideally none of the switchdev drivers should ignore these entries, but
having access to the is_local bit is the bare minimum change that should
be done in the bridge layer, before this is even possible.

These 2 changes are extracted from the larger "RX filtering in DSA"
series:
https://patchwork.kernel.org/project/netdevbpf/patch/20210224114350.2791260-8-olteanv@gmail.com/
https://patchwork.kernel.org/project/netdevbpf/patch/20210224114350.2791260-9-olteanv@gmail.com/
and submitted separately, because they touch all switchdev drivers,
while the rest is mostly specific to DSA.

This change is not a functional one, in the sense that everybody still
ignores the local FDB entries, but this will be changed by further
patches at least for DSA.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-16 15:15:45 -07:00
Vladimir Oltean 2c4eca3ef7 net: bridge: switchdev: include local flag in FDB notifications
As explained in bugfix commit 6ab4c3117a ("net: bridge: don't notify
switchdev for local FDB addresses") as well as in this discussion:
https://lore.kernel.org/netdev/20210117193009.io3nungdwuzmo5f7@skbuf/

the switchdev notifiers for FDB entries managed to have a zero-day bug,
which was that drivers would not know what to do with local FDB entries,
because they were not told that they are local. The bug fix was to
simply not notify them of those addresses.

Let us now add the 'is_local' bit to bridge FDB entries, and make all
drivers ignore these entries by their own choice.

Co-developed-by: Tobias Waldekranz <tobias@waldekranz.com>
Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-16 15:15:45 -07:00
Tobias Waldekranz e5b4b8988b net: bridge: switchdev: refactor br_switchdev_fdb_notify
Instead of having to add more and more arguments to
br_switchdev_fdb_call_notifiers, get rid of it and build the info
struct directly in br_switchdev_fdb_notify.

Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-16 15:15:45 -07:00
Eric Dumazet e7ad33fa7b scm: fix a typo in put_cmsg()
We need to store cmlen instead of len in cm->cmsg_len.

Fixes: 38ebcf5096 ("scm: optimize put_cmsg()")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-16 11:41:07 -07:00
David S. Miller 392c36e5be Merge branch 'ehtool-fec-stats'
Jakub Kicinski says:

====================
ethtool: add standard FEC statistics

This set adds uAPI for reporting standard FEC statistics, and
implements it in a handful of drivers.

The statistics are taken from the IEEE standard, with one
extra seemingly popular but not standard statistics added.

The implementation is similar to that of the pause frame
statistics, user requests the stats by setting a bit
(ETHTOOL_FLAG_STATS) in the common ethtool header of
ETHTOOL_MSG_FEC_GET.

Since standard defines the statistics per lane what's
reported is both total and per-lane counters:

 # ethtool -I --show-fec eth0
 FEC parameters for eth0:
 Configured FEC encodings: None
 Active FEC encoding: None
 Statistics:
  corrected_blocks: 256
    Lane 0: 255
    Lane 1: 1
  uncorrectable_blocks: 145
    Lane 0: 128
    Lane 1: 17

v2: check for errors in mlx5 register access
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-15 17:08:30 -07:00
Jakub Kicinski 1703bb50df mlx5: implement ethtool::get_fec_stats
Report corrected bits.

v2: catch reg access errors (Saeed)

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-15 17:08:29 -07:00
Jakub Kicinski cab351be53 sfc: ef10: implement ethtool::get_fec_stats
Report what appears to be the standard block counts:
 - 30.5.1.1.17 aFECCorrectedBlocks
 - 30.5.1.1.18 aFECUncorrectableBlocks

Don't report the per-lane symbol counts, if those really
count symbols they are not what the standard calls for
(even if symbols seem like the most useful thing to count.)

Fingers crossed that fec_corrected_errors is not in symbols.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-15 17:08:29 -07:00
Jakub Kicinski c9ca5c3aab bnxt: implement ethtool::get_fec_stats
Report corrected bits.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-15 17:08:29 -07:00
Jakub Kicinski be85dbfeb3 ethtool: add FEC statistics
Similarly to pause statistics add stats for FEC.

The IEEE standard mandates two sets of counters:
 - 30.5.1.1.17 aFECCorrectedBlocks
 - 30.5.1.1.18 aFECUncorrectableBlocks
where block is a block of bits FEC operates on.
Each of these counters is defined per lane (PCS instance).

Multiple vendors provide number of corrected _bits_ rather
than/as well as blocks.

This set adds the 2 standard-based block counters and a extra
one for corrected bits.

Counters are exposed to user space via netlink in new attributes.
Each attribute carries an array of u64s, first element is
the total count, and the following ones are a per-lane break down.

Much like with pause stats the operation will not fail when driver
does not implement the get_fec_stats callback (nor can the driver
fail the operation by returning an error). If stats can't be
reported the relevant attributes will be empty.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-15 17:08:29 -07:00
Jakub Kicinski 3d7cc109ec ethtool: fec_prepare_data() - jump to error handling
Refactor fec_prepare_data() a little bit to skip the body
of the function and exit on error. Currently the code
depends on the fact that we only have one call which
may fail between ethnl_ops_begin() and ethnl_ops_complete()
and simply saves the error code. This will get hairy with
the stats also being queried.

No functional changes.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-15 17:08:29 -07:00
Jakub Kicinski c5797f8a64 ethtool: move ethtool_stats_init
We'll need it for FEC stats as well.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-15 17:08:29 -07:00
Eric Dumazet 38ebcf5096 scm: optimize put_cmsg()
Calling two copy_to_user() for very small regions has very high overhead.

Switch to inlined unsafe_put_user() to save one stac/clac sequence,
and avoid copy_to_user().

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Soheil Hassas Yeganeh <soheil@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-15 17:03:33 -07:00
Yangbo Lu b6faf160d0 enetc: convert to schedule_work()
Convert system_wq queue_work() to schedule_work() which is
a wrapper around it, since the former is a rare construct.

Fixes: 7294380c52 ("enetc: support PTP Sync packet one-step timestamping")
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-15 16:53:08 -07:00
David S. Miller 8f571c4cad Merge branch 'hns3-next'
Huazhong Tan says:

====================
net: hns3: updates for -next

This series adds support for pushing link status to VFs for
the HNS3 ethernet driver.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-15 16:51:29 -07:00
Guangbin Huang 01305e16eb net: hns3: VF not request link status when PF support push link status feature
To reduce the processing of unnecessary mailbox command when PF supports
actively push its link status to VFs, VFs stop sending request link
status command in periodic service task in this case.

Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-15 16:51:29 -07:00
Guangbin Huang 18b6e31f8b net: hns3: PF add support for pushing link status to VFs
Previously, VF updates its link status every second by send query command
to PF in periodic service task. If link stats of PF is changed, VF may
need at most one second to update its link status.

To reduce delay of link status between PF and VFs, PF actively push its
link status to VFs when its link status is updated. And to let VF know
PF supports this new feature, the link status changed mailbox command
adds one bit to indicate it.

Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-15 16:51:29 -07:00
David Bauer c329e5afb4 net: phy: at803x: select correct page on config init
The Atheros AR8031 and AR8033 expose different registers for SGMII/Fiber
as well as the copper side of the PHY depending on the BT_BX_REG_SEL bit
in the chip configure register.

The driver assumes the copper side is selected on probe, but this might
not be the case depending which page was last selected by the
bootloader. Notably, Ubiquiti UniFi bootloaders show this behavior.

Select the copper page when probing to circumvent this.

Signed-off-by: David Bauer <mail@david-bauer.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-15 16:49:32 -07:00
David S. Miller bd363f5493 Merge branch '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue
Tony Nguyen says:

====================
100GbE Intel Wired LAN Driver Updates 2021-04-14

This series contains updates to ice driver only.

Bruce changes and removes open coded values to instead use existing
kernel defines and suppresses false cppcheck issues.

Ani adds new VSI states to track netdev allocation and registration. He
also removes leading underscores in the ice_pf_state enum.

Jesse refactors ITR by introducing helpers to reduce duplicated code and
structures to simplify checking of ITR mode. He also triggers a software
interrupt when exiting napi poll or busy-poll to ensure all work is
processed. Modifies /proc/iomem to display driver name instead of PCI
address. He also changes the checks of vsi->type to use a local variable
in ice_vsi_rebuild() and removes an unneeded struct member.

Jake replaces the driver's adaptive interrupt moderation algorithm to
use the kernel's DIM library implementation.

Scott reworks module reads to reduce the number of reads needed and
remove excessive increment of QSFP page.

Brett sets the vsi->vf_id to invalid for non-VF VSIs.

Paul removes the return value from ice_vsi_manage_rss_lut() as it's not
communicating anything critical. He also reduces the scope of a
variable.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-15 16:45:14 -07:00
Paul M Stillwell Jr 4c26f69d0c ice: reduce scope of variable
The scope of this variable can be reduced so do that.

Signed-off-by: Paul M Stillwell Jr <paul.m.stillwell.jr@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2021-04-14 17:12:18 -07:00
Paul M Stillwell Jr 4fe3622694 ice: remove return variable
We were saving the return value from ice_vsi_manage_rss_lut(), but
the errors from that function are not critical so change it to
return void and remove the code that saved the value.

Signed-off-by: Paul M Stillwell Jr <paul.m.stillwell.jr@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2021-04-14 17:12:17 -07:00
Bruce Allan b370245b4b ice: suppress false cppcheck issues
Silence false errors, warnings and style issues reported by cppcheck.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2021-04-14 17:12:17 -07:00
Brett Creeley c931c782d8 ice: Set vsi->vf_id as ICE_INVAL_VFID for non VF VSI types
Currently the vsi->vf_id is set only for ICE_VSI_VF and it's left as 0
for all other VSI types. This is confusing and could be problematic
since 0 is a valid vf_id. Fix this by always setting non VF VSI types to
ICE_INVAL_VFID.

Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2021-04-14 17:12:05 -07:00
Jesse Brandeburg 1cdea9a7ea ice: remove unused struct member
The only time you can ever have a rq_last_status is if
a firmware event was somehow reporting a status on the receive
queue, which are generally firmware initiated events or
mailbox messages from a VF.  Mostly this struct member was unused.

Fix this problem by still printing the value of the field in a debug
print, but don't store the value forever in a struct, potentially
creating opportunities for callers to use the wrong struct member.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2021-04-14 17:00:06 -07:00
Jesse Brandeburg 58623c52b4 ice: use local for consistency
Do a minor refactor on ice_vsi_rebuild to use a local
variable to store vsi->type.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2021-04-14 17:00:06 -07:00
Jesse Brandeburg 80ad6dde61 ice: print name in /proc/iomem
The driver previously printed it's PCI address in
the name field for the pci resource, which when displayed
via /proc/iomem, would print the same thing twice.

It's more useful for debugging to see the driver name, as
most other modules do.

Here's a diff of before and after this change:
     99100000-991fffff : 0000:3b:00.1
   9a000000-a04fffff : PCI Bus 0000:3b
     9a000000-9bffffff : 0000:3b:00.1
-      9a000000-9bffffff : 0000:3b:00.1
+      9a000000-9bffffff : ice
     9c000000-9dffffff : 0000:3b:00.0
-      9c000000-9dffffff : 0000:3b:00.0
+      9c000000-9dffffff : ice
     9e000000-9effffff : 0000:3b:00.1
     9f000000-9fffffff : 0000:3b:00.0
     a0000000-a000ffff : 0000:3b:00.1

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2021-04-14 17:00:06 -07:00
Scott W Taylor e9c9692c8a ice: Reimplement module reads used by ethtool
There was an excessive increment of the QSFP page, which is
now fixed. Additionally, this new update now reads 8 bytes
at a time and will retry each request if the module/bus is
busy.

Also, prevent reading from upper pages if module does not
support those pages.

Signed-off-by: Scott W Taylor <scott.w.taylor@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2021-04-14 17:00:06 -07:00