Some counters in enetc_port_counters are 32-bit registers, and some are
64-bit registers. But in the current driver, they are all read through
enetc_port_rd(), which can only read a 32-bit value. Therefore, separate
64-bit counters (enetc_pm_counters) from enetc_port_counters and use
enetc_port_rd64() to read the 64-bit statistics.

Signed-off-by: Wei Fang <[email protected]>
Reviewed-by: Claudiu Manoil <[email protected]>
Reviewed-by: Frank Li <[email protected]>
Reviewed-by: Simon Horman <[email protected]>
Signed-off-by: NipaLocal <nipa@local>

The counters of port MAC are all 64-bit registers, and the statistics of
ethtool are u64 type, so replace enetc_port_rd() with enetc_port_rd64()
to read 64-bit statistics.

Signed-off-by: Wei Fang <[email protected]>
Reviewed-by: Claudiu Manoil <[email protected]>
Reviewed-by: Frank Li <[email protected]>
Reviewed-by: Simon Horman <[email protected]>
Signed-off-by: NipaLocal <nipa@local>

Add async event queue interfaces initialization.
It allows driver to handle async events reported by HW.

Co-developed-by: Xin Guo <[email protected]>
Signed-off-by: Xin Guo <[email protected]>
Co-developed-by: Zhu Yikai <[email protected]>
Signed-off-by: Zhu Yikai <[email protected]>
Signed-off-by: Fan Gong <[email protected]>
Signed-off-by: NipaLocal <nipa@local>

Add complete event queue interfaces initialization.
It informs that driver should handle the messages from HW.

Co-developed-by: Xin Guo <[email protected]>
Signed-off-by: Xin Guo <[email protected]>
Co-developed-by: Zhu Yikai <[email protected]>
Signed-off-by: Zhu Yikai <[email protected]>
Signed-off-by: Fan Gong <[email protected]>
Signed-off-by: NipaLocal <nipa@local>

Add Command Queue framework initialization.
It is used to set the related table items of the driver and obtain the
HW configuration.

Co-developed-by: Xin Guo <[email protected]>
Signed-off-by: Xin Guo <[email protected]>
Co-developed-by: Zhu Yikai <[email protected]>
Signed-off-by: Zhu Yikai <[email protected]>
Signed-off-by: Fan Gong <[email protected]>
Signed-off-by: NipaLocal <nipa@local>

Add Command Queue interfaces initialization.
It enables communictaion and operation with HW.

Co-developed-by: Xin Guo <[email protected]>
Signed-off-by: Xin Guo <[email protected]>
Co-developed-by: Zhu Yikai <[email protected]>
Signed-off-by: Zhu Yikai <[email protected]>
Signed-off-by: Fan Gong <[email protected]>
Signed-off-by: NipaLocal <nipa@local>

Add TX RX queue coalesce interfaces initialization.
It configures the parameters of tx & tx msix coalesce.

Co-developed-by: Xin Guo <[email protected]>
Signed-off-by: Xin Guo <[email protected]>
Co-developed-by: Zhu Yikai <[email protected]>
Signed-off-by: Zhu Yikai <[email protected]>
Signed-off-by: Fan Gong <[email protected]>
Signed-off-by: NipaLocal <nipa@local>

Add mailbox framework initialization.
It allows driver to send commands to HW.

Co-developed-by: Xin Guo <[email protected]>
Signed-off-by: Xin Guo <[email protected]>
Co-developed-by: Zhu Yikai <[email protected]>
Signed-off-by: Zhu Yikai <[email protected]>
Signed-off-by: Fan Gong <[email protected]>
Signed-off-by: NipaLocal <nipa@local>

Add mailbox management interfaces initialization.
It enables mailbox to communicate with event queues from HW.

Co-developed-by: Xin Guo <[email protected]>
Signed-off-by: Xin Guo <[email protected]>
Co-developed-by: Zhu Yikai <[email protected]>
Signed-off-by: Zhu Yikai <[email protected]>
Signed-off-by: Fan Gong <[email protected]>
Signed-off-by: NipaLocal <nipa@local>

Configure interrupt request initialization.
It allows driver to receive packets and management information
from HW.

Co-developed-by: Xin Guo <[email protected]>
Signed-off-by: Xin Guo <[email protected]>
Co-developed-by: Zhu Yikai <[email protected]>
Signed-off-by: Zhu Yikai <[email protected]>
Signed-off-by: Fan Gong <[email protected]>
Signed-off-by: NipaLocal <nipa@local>

… tree

netem_enqueue's duplication prevention logic breaks when a netem
resides in a qdisc tree with other netems - this can lead to a
soft lockup and OOM loop in netem_dequeue, as seen in [1].
Ensure that a duplicating netem cannot exist in a tree with other
netems.

Previous approaches suggested in discussions in chronological order:

1) Track duplication status or ttl in the sk_buff struct. Considered
too specific a use case to extend such a struct, though this would
be a resilient fix and address other previous and potential future
DOS bugs like the one described in loopy fun [2].

2) Restrict netem_enqueue recursion depth like in act_mirred with a
per cpu variable. However, netem_dequeue can call enqueue on its
child, and the depth restriction could be bypassed if the child is a
netem.

3) Use the same approach as in 2, but add metadata in netem_skb_cb
to handle the netem_dequeue case and track a packet's involvement
in duplication. This is an overly complex approach, and Jamal
notes that the skb cb can be overwritten to circumvent this
safeguard.

4) Prevent the addition of a netem to a qdisc tree if its ancestral
path contains a netem. However, filters and actions can cause a
packet to change paths when re-enqueued to the root from netem
duplication, leading us to the current solution: prevent a
duplicating netem from inhabiting the same tree as other netems.

[1] https://lore.kernel.org/netdev/8DuRWwfqjoRDLDmBMlIfbrsZg9Gx50DHJc1ilxsEBNe2D6NMoigR_eIRIG0LOjMc3r10nUUZtArXx4oZBIdUfZQrwjcQhdinnMis_0G7VEk=@willsroot.io/
[2] https://lwn.net/Articles/719297/

Fixes: 0afb51e ("[PKT_SCHED]: netem: reinsert for duplication")
Reported-by: William Liu <[email protected]>
Reported-by: Savino Dicanosa <[email protected]>
Signed-off-by: William Liu <[email protected]>
Signed-off-by: Savino Dicanosa <[email protected]>
Signed-off-by: NipaLocal <nipa@local>

Ensure that a duplicating netem cannot exist in a tree with other netems
in both qdisc addition and change. This is meant to prevent the soft
lockup and OOM loop scenario discussed in [1]. Also adjust a HFSC's
re-entrancy test case with netem for this new restriction - KASAN
still triggers upon its failure.

[1] https://lore.kernel.org/netdev/8DuRWwfqjoRDLDmBMlIfbrsZg9Gx50DHJc1ilxsEBNe2D6NMoigR_eIRIG0LOjMc3r10nUUZtArXx4oZBIdUfZQrwjcQhdinnMis_0G7VEk=@willsroot.io/

Signed-off-by: William Liu <[email protected]>
Reviewed-by: Savino Dicanosa <[email protected]>
Signed-off-by: NipaLocal <nipa@local>

Currently, for controllers with extended advertising, the advertising
data is set in the asynchronous response handler for extended
adverstising params. As most advertising settings are performed in a
synchronous context, the (asynchronous) setting of the advertising data
is done too late (after enabling the advertising).

Move setting of adverstising data from asynchronous response handler
into synchronous context to fix ordering of HCI commands.

Signed-off-by: Christian Eggers <[email protected]>
Fixes: a0fb372 ("Bluetooth: Use Set ext adv/scan rsp data if controller supports")
Cc: [email protected]
v2: https://lore.kernel.org/linux-bluetooth/[email protected]/
Signed-off-by: NipaLocal <nipa@local>

This adds a driver for Alibaba CIPU PTP clock. The CIPU, an underlying
infrastructure of Alibaba Cloud, synchronizes time with reference clocks
continuously and provides PTP clocks for VMs and bare metals on cloud.

User space e.g. chrony, in VMs or bare metals can get the value of CIPU
clock time through the ptp device exposed by this driver.

Reviewed-by: Xuan Zhuo <[email protected]>
Signed-off-by: Wen Gu <[email protected]>
Signed-off-by: NipaLocal <nipa@local>

When setting "ethtool -L eth0 combined 1", the number of RX/TX queue is
changed to be 1. RSS is disabled at this moment, and the indices of FDIR
have not be changed in wx_set_rss_queues(). So the combined count still
shows the previous value. This issue was introduced when supporting
FDIR. Fix it for those devices that support FDIR.

Fixes: 34744a7 ("net: txgbe: add FDIR info to ethtool ops")
Cc: [email protected]
Signed-off-by: Jiawen Wu <[email protected]>
Signed-off-by: NipaLocal <nipa@local>

When hv_sock was originally added, __vsock_stream_recvmsg() and
vsock_stream_has_data() actually only needed to know whether there
is any readable data or not, so hvs_stream_has_data() was written to
return 1 or 0 for simplicity.

However, now hvs_stream_has_data() should return the readable bytes
because vsock_data_ready() -> vsock_stream_has_data() needs to know the
actual bytes rather than a boolean value of 1 or 0.

The SIOCINQ ioctl support also needs hvs_stream_has_data() to return
the readable bytes.

Let hvs_stream_has_data() return the readable bytes of the payload in
the next host-to-guest VMBus hv_sock packet.

Note: there may be multpile incoming hv_sock packets pending in the
VMBus channel's ringbuffer, but so far there is not a VMBus API that
allows us to know all the readable bytes in total without reading and
caching the payload of the multiple packets, so let's just return the
readable bytes of the next single packet. In the future, we'll either
add a VMBus API that allows us to know the total readable bytes without
touching the data in the ringbuffer, or the hv_sock driver needs to
understand the VMBus packet format and parse the packets directly.

Signed-off-by: Dexuan Cui <[email protected]>
Signed-off-by: NipaLocal <nipa@local>

tc_actions.sh keeps hanging the forwarding tests.

sdf@: tdc & tdc-dbg started intermittenly failing around Sep 25th

Signed-off-by: NipaLocal <nipa@local>

Signed-off-by: Jakub Kicinski <[email protected]>
Signed-off-by: NipaLocal <nipa@local>

Signed-off-by: Jakub Kicinski <[email protected]>
Signed-off-by: NipaLocal <nipa@local>

Signed-off-by: Jakub Kicinski <[email protected]>
Signed-off-by: NipaLocal <nipa@local>

Signed-off-by: Jakub Kicinski <[email protected]>
Signed-off-by: NipaLocal <nipa@local>

Signed-off-by: NipaLocal <nipa@local>

Signed-off-by: NipaLocal <nipa@local>

Signed-off-by: Jakub Kicinski <[email protected]>
Signed-off-by: NipaLocal <nipa@local>

Signed-off-by: Jakub Kicinski <[email protected]>
Signed-off-by: NipaLocal <nipa@local>

Signed-off-by: Jakub Kicinski <[email protected]>
Signed-off-by: NipaLocal <nipa@local>

Signed-off-by: Jakub Kicinski <[email protected]>
Signed-off-by: NipaLocal <nipa@local>