This patch add dump the map relation for dscp, priority and TC, and
the current tc map mode.
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

To support tx packets to select queue according to its dscp field after
setting dscp and tc map relationship, this patch implements
ndo_select_queue() to set skb->priority according to the user's setting
dscp and priority map relationship.
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch add support config dscp map to tc by implementing ieee_setapp
and ieee_delapp of struct dcbnl_rtnl_ops. Driver will convert mapping
relationship from dscp-prio to dscp-tc.
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Reported-by: Nkernel test robot <lkp@intel.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Tony Nguyen says:

====================
Intel Wired LAN Driver Updates 2022-09-06 (i40e, iavf)

This series contains updates to i40e and iavf drivers.

Stanislaw adds support for new device id for i40e.

Jaroslaw tidies up some code around MSI-X configuration by adding/
reworking comments and introducing a couple of macros for i40e.

Michal resolves some races around reset and close by deferring and deleting
some pending AdminQ operations and reworking filter additions and deletions
during these operations for iavf.
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Tony Nguyen says:

====================
Intel Wired LAN Driver Updates 2022-09-06 (ice)

This series contains updates to ice driver only.

Tony reduces device MSI-X request/usage when entire request can't be fulfilled.

Michal adds check for reset when waiting for PTP offsets.

Paul refactors firmware version checks to use a common helper.

Christophe Jaillet changes a couple of local memory allocation to not
use the devm variant.
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The variable long_max is replaced by bpf_jit_limit_max and no longer be
used. So remove it.

No functional change.
Signed-off-by: NLiu Shixin <liushixin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Get rid of mtk_foe_entry_timestamp routine since it is no longer used.
Signed-off-by: NLorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Saeed Mahameed says:

====================
Introduce MACsec skb_metadata_dst and mlx5 macsec offload

v1->v2:
   - attach mlx5 implementation patches.

This patchset introduces MACsec skb_metadata_dst to lay the ground
for MACsec HW offload.

MACsec is an IEEE standard (IEEE 802.1AE) for MAC security.
It defines a way to establish a protocol independent connection
between two hosts with data confidentiality, authenticity and/or
integrity, using GCM-AES. MACsec operates on the Ethernet layer and
as such is a layer 2 protocol, which means it’s designed to secure
traffic within a layer 2 network, including DHCP or ARP requests.

Linux has a software implementation of the MACsec standard and
HW offloading support.
The offloading is re-using the logic, netlink API and data
structures of the existing MACsec software implementation.

For Tx:
In the current MACsec offload implementation, MACsec interfaces shares
the same MAC address by default.
Therefore, HW can't distinguish from which MACsec interface the traffic
originated from.

MACsec stack will use skb_metadata_dst to store the SCI value, which is
unique per MACsec interface, skb_metadat_dst will be used later by the
offloading device driver to associate the SKB with the corresponding
offloaded interface (SCI) to facilitate HW MACsec offload.

For Rx:
Like in the Tx changes, if there are more than one MACsec device with
the same MAC address as in the packet's destination MAC, the packet will
be forward only to one of the devices and not neccessarly to the desired one.

Offloading device driver sets the MACsec skb_metadata_dst sci
field with the appropriaate Rx SCI for each SKB so the MACsec rx handler
will know to which port to divert those skbs, instead of wrongly solely
relaying on dst MAC address comparison.

1) patch 1,2, Add support to skb_metadata_dst in MACsec code:
net/macsec: Add MACsec skb_metadata_dst Tx Data path support
net/macsec: Add MACsec skb_metadata_dst Rx Data path support

2) patch 3, Move some MACsec driver code for sharing with various
drivers that implements offload:
net/macsec: Move some code for sharing with various drivers that
implements offload

3) The rest of the patches introduce mlx5 implementation for macsec
offloads TX and RX via steering tables.
  a) TX, intercept skbs with macsec offlad mark in skb_metadata_dst and mark
the descriptor for offload.
  b) RX, intercept offloaded frames and prepare the proper
skb_metadata_dst to mark offloaded rx frames.
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add the ability to add up to 16 MACsec offload interfaces
over the same physical interface
Signed-off-by: NLior Nahmanson <liorna@nvidia.com>
Reviewed-by: NRaed Salem <raeds@nvidia.com>
Signed-off-by: NRaed Salem <raeds@nvidia.com>
Signed-off-by: NSaeed Mahameed <saeedm@nvidia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add the following statistics:
RX successfully decrypted MACsec packets:
macsec_rx_pkts : Number of packets decrypted successfully
macsec_rx_bytes : Number of bytes decrypted successfully

Rx dropped MACsec packets:
macsec_rx_pkts_drop : Number of MACsec packets dropped
macsec_rx_bytes_drop : Number of MACsec bytes dropped

TX successfully encrypted MACsec packets:
macsec_tx_pkts : Number of packets encrypted/authenticated successfully
macsec_tx_bytes : Number of bytes encrypted/authenticated successfully

Tx dropped MACsec packets:
macsec_tx_pkts_drop : Number of MACsec packets dropped
macsec_tx_bytes_drop : Number of MACsec bytes dropped

The above can be seen using:
ethtool -S <ifc> |grep macsec
Signed-off-by: NLior Nahmanson <liorna@nvidia.com>
Reviewed-by: NRaed Salem <raeds@nvidia.com>
Signed-off-by: NSaeed Mahameed <saeedm@nvidia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add offload support for MACsec SecY callbacks - add/update/delete.
add_secy is called when need to create a new MACsec interface.
upd_secy is called when source MAC address or tx SC was changed.
del_secy is called when need to destroy the MACsec interface.
Signed-off-by: NLior Nahmanson <liorna@nvidia.com>
Reviewed-by: NRaed Salem <raeds@nvidia.com>
Signed-off-by: NSaeed Mahameed <saeedm@nvidia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

MACsec driver need to distinguish to which offload device the MACsec
is target to, in order to handle them correctly.
This can be done by attaching a metadata_dst to a SKB with a SCI,
when there is a match on MACsec rule.
To achieve that, there is a map between fs_id to SCI, so for each RX SC,
there is a unique fs_id allocated when creating RX SC.
fs_id passed to device driver as metadata for packets that passed Rx
MACsec offload to aid the driver to retrieve the matching SCI.
Signed-off-by: NLior Nahmanson <liorna@nvidia.com>
Reviewed-by: NRaed Salem <raeds@nvidia.com>
Signed-off-by: NRaed Salem <raeds@nvidia.com>
Signed-off-by: NSaeed Mahameed <saeedm@nvidia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Rx flow steering consists of two flow tables (FTs).

The first FT (crypto table) have one default miss rule so non MACsec
offloaded packets bypass the MACSec tables.
All others flow table entries (FTEs) are divided to two equal groups
size, both of them are for MACsec packets:
The first group is for MACsec packets which contains SCI field in the
SecTAG header.
The second group is for MACsec packets which doesn't contain SCI,
where need to match on the source MAC address (only if the SCI
is built from default MACsec port).
Destination MAC address, ethertype and some of SecTAG fields
are also matched for both groups.
In case of match, invoke decrypt action on the packet.
For each MACsec Rx offloaded SA two rules are created: one with SCI
and one without SCI.

The second FT (check table) has two fixed rules:
One rule is for verifying that the previous offload actions were
finished successfully.
In this case, need to decap the SecTAG header and forward the packet
for further processing.
Another default rule for dropping packets that failed in the previous
decrypt actions.

The MACsec FTs are created on demand when the first MACsec rule is
added and destroyed when the last MACsec rule is deleted.
Signed-off-by: NLior Nahmanson <liorna@nvidia.com>
Reviewed-by: NRaed Salem <raeds@nvidia.com>
Signed-off-by: NSaeed Mahameed <saeedm@nvidia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add new namespace for MACsec RX flows.
Encrypted MACsec packets should be first decrypted and stripped
from MACsec header and then continues with the kernel's steering
pipeline.
Signed-off-by: NLior Nahmanson <liorna@nvidia.com>
Reviewed-by: NRaed Salem <raeds@nvidia.com>
Signed-off-by: NSaeed Mahameed <saeedm@nvidia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add a support for Connect-X MACsec offload Rx SA & SC commands:
add, update and delete.

SCs are created on demend and aren't limited by number and unique by SCI.
Each Rx SA must be associated with Rx SC according to SCI.

Follow-up patches will implement the Rx steering.
Signed-off-by: NLior Nahmanson <liorna@nvidia.com>
Reviewed-by: NRaed Salem <raeds@nvidia.com>
Signed-off-by: NRaed Salem <raeds@nvidia.com>
Signed-off-by: NSaeed Mahameed <saeedm@nvidia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

MACsec driver marks Tx packets for device offload using a dedicated
skb_metadata_dst which holds a 64 bits SCI number.
A previously set rule will match on this number so the correct SA is used
for the MACsec operation.
As device driver can only provide 32 bits of metadata to flow tables,
need to used a mapping from 64 bit to 32 bits marker or id,
which is can be achieved by provide a 32 bit unique flow id in the
control path, and used a hash table to map 64 bit to the unique id in the
datapath.
Signed-off-by: NLior Nahmanson <liorna@nvidia.com>
Reviewed-by: NRaed Salem <raeds@nvidia.com>
Signed-off-by: NRaed Salem <raeds@nvidia.com>
Signed-off-by: NSaeed Mahameed <saeedm@nvidia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Tx flow steering consists of two flow tables (FTs).

The first FT (crypto table) has two fixed rules:
One default miss rule so non MACsec offloaded packets bypass the MACSec
tables, another rule to make sure that MACsec key exchange (MKE) traffic
passes unencrypted as expected (matched of ethertype).
On each new MACsec offload flow, a new MACsec rule is added.
This rule is matched on metadata_reg_a (which contains the id of the
flow) and invokes the MACsec offload action on match.

The second FT (check table) has two fixed rules:
One rule for verifying that the previous offload actions were
finished successfully and packet need to be transmitted.
Another default rule for dropping packets that were failed in the
offload actions.

The MACsec FTs should be created on demand when the first MACsec rule is
added and destroyed when the last MACsec rule is deleted.
Signed-off-by: NLior Nahmanson <liorna@nvidia.com>
Reviewed-by: NRaed Salem <raeds@nvidia.com>
Signed-off-by: NRaed Salem <raeds@nvidia.com>
Signed-off-by: NSaeed Mahameed <saeedm@nvidia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Changed EGRESS_KERNEL namespace to EGRESS_IPSEC and add new
namespace for MACsec TX.
This namespace should be the last namespace for transmitted packets.
Signed-off-by: NLior Nahmanson <liorna@nvidia.com>
Reviewed-by: NRaed Salem <raeds@nvidia.com>
Signed-off-by: NSaeed Mahameed <saeedm@nvidia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch adds support for Connect-X MACsec offload Tx SA commands:
add, update and delete.

In Connect-X MACsec, a Security Association (SA) is added or deleted
via allocating a HW context of an encryption/decryption key and
a HW context of a matching SA (MACsec object).

When new SA is added:
- Use a separate crypto key HW context.
- Create a separate MACsec context in HW to include the SA properties.

Introduce a new compilation flag MLX5_EN_MACSEC for it.

Follow-up patches will implement the Tx steering.
Signed-off-by: NLior Nahmanson <liorna@nvidia.com>
Reviewed-by: NRaed Salem <raeds@nvidia.com>
Signed-off-by: NRaed Salem <raeds@nvidia.com>
Signed-off-by: NSaeed Mahameed <saeedm@nvidia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add MACsec offload related IFC structs, layouts and enumerations.
Signed-off-by: NLior Nahmanson <liorna@nvidia.com>
Reviewed-by: NRaed Salem <raeds@nvidia.com>
Signed-off-by: NSaeed Mahameed <saeedm@nvidia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

In order to support MACsec offload (and maybe some other crypto features
in the future), generalize flow action parameters / defines to be used by
crypto offlaods other than IPsec.
The following changes made:
ipsec_obj_id field at flow action context was changed to crypto_obj_id,
intreduced a new crypto_type field where IPsec is the default zero type
for backward compatibility.
Action ipsec_decrypt was changed to crypto_decrypt.
Action ipsec_encrypt was changed to crypto_encrypt.

IPsec offload code was updated accordingly for backward compatibility.
Signed-off-by: NLior Nahmanson <liorna@nvidia.com>
Reviewed-by: NRaed Salem <raeds@nvidia.com>
Signed-off-by: NRaed Salem <raeds@nvidia.com>
Signed-off-by: NSaeed Mahameed <saeedm@nvidia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

esp_id is no longer in used
Signed-off-by: NLior Nahmanson <liorna@nvidia.com>
Signed-off-by: NSaeed Mahameed <saeedm@nvidia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Move some MACsec infrastructure like defines and functions,
in order to avoid code duplication for future drivers which
implements MACsec offload.
Signed-off-by: NLior Nahmanson <liorna@nvidia.com>
Reviewed-by: NRaed Salem <raeds@nvidia.com>
Reviewed-by: NJiri Pirko <jiri@nvidia.com>
Reviewed-by: NBen Ben-Ishay <benishay@nvidia.com>
Signed-off-by: NSaeed Mahameed <saeedm@nvidia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Like in the Tx changes, if there are more than one MACsec device with
the same MAC address as in the packet's destination MAC, the packet will
be forward only to this device and not neccessarly to the desired one.

Offloading device drivers will mark offloaded MACsec SKBs with the
corresponding SCI in the skb_metadata_dst so the macsec rx handler will
know to which port to divert those skbs, instead of wrongly solely
relaying on dst MAC address comparison.
Signed-off-by: NLior Nahmanson <liorna@nvidia.com>
Reviewed-by: NRaed Salem <raeds@nvidia.com>
Signed-off-by: NSaeed Mahameed <saeedm@nvidia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

In the current MACsec offload implementation, MACsec interfaces shares
the same MAC address by default.
Therefore, HW can't distinguish from which MACsec interface the traffic
originated from.

MACsec stack will use skb_metadata_dst to store the SCI value, which is
unique per Macsec interface, skb_metadat_dst will be used by the
offloading device driver to associate the SKB with the corresponding
offloaded interface (SCI).
Signed-off-by: NLior Nahmanson <liorna@nvidia.com>
Reviewed-by: NRaed Salem <raeds@nvidia.com>
Signed-off-by: NSaeed Mahameed <saeedm@nvidia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Now that nla_policy allows range checks for bigendian data make use of
this to reject such attributes.  At this time, reject happens later
from the init or select_ops callbacks, but its prone to errors.

In the future, new attributes can be handled via NLA_POLICY_MAX_BE
and exiting ones can be converted one by one.
Signed-off-by: NFlorian Westphal <fw@strlen.de>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

netlink allows to specify allowed ranges for integer types.
Unfortunately, nfnetlink passes integers in big endian, so the existing
NLA_POLICY_MAX() cannot be used.

At the moment, nfnetlink users, such as nf_tables, need to resort to
programmatic checking via helpers such as nft_parse_u32_check().

This is both cumbersome and error prone.  This adds NLA_POLICY_MAX_BE
which adds range check support for BE16, BE32 and BE64 integers.
Signed-off-by: NFlorian Westphal <fw@strlen.de>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Edward Cree says:

====================
sfc: add support for PTP over IPv6 and 802.3
Most recent cards (8000 series and newer) had enough hardware support
for this, but it was not enabled in the driver. The transmission of PTP
packets over these protocols was already added in commit bd4a2697
("sfc: use hardware tx timestamps for more than PTP"), but receiving
them was already unsupported so synchronization didn't happen.

These patches add support for timestamping received packets over
IPv6/UPD and IEEE802.3.

v2: fixed weird indentation in efx_ptp_init_filter
v3: fixed bug caused by usage of htons in PTP_EVENT_PORT definition.
    It was used in more places, where htons was used too, so using it
    2 times leave it again in host order. I didn't detected it in my
    tests because it only affected if timestamping through the MC, but
    the model I used do it through the MAC. Detected by kernel test
    robot <lkp@intel.com>
v4: removed `inline` specifiers from 2 local functions
v5: restored deleted comment with useful explanation about packets
    reordering. Deleted useless whitespaces.
====================
Reviewed-by: NEdward Cree <ecree.xilinx@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The previous patch add support for PTP over IPv6/UDP (only for 8000
series and newer) and this one add support for PTP over 802.3.

Tested: sync as master and as slave is correct with ptp4l. PTP over IPv4
and IPv6 still works fine.
Suggested-by: NEdward Cree <ecree.xilinx@gmail.com>
Signed-off-by: NÍñigo Huguet <ihuguet@redhat.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

commit bd4a2697 ("sfc: use hardware tx timestamps for more than
PTP") added support for hardware timestamping on TX for cards of the
8000 series and newer, in an effort to provide support for other
transports other than IPv4/UDP.

However, timestamping was still not working on RX for these other
transports. This patch add support for PTP over IPv6/UDP.

Tested: sync as master and as slave is correct using ptp4l from linuxptp
package, both with IPv4 and IPv6.
Suggested-by: NEdward Cree <ecree.xilinx@gmail.com>
Signed-off-by: NÍñigo Huguet <ihuguet@redhat.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

In preparation for the support of PTP over IPv6/UDP and Ethernet in next
patches, allow a more flexible way of adding and removing RX filters for
PTP. Right now, only 2 filters are allowed, which are the ones needed
for PTP over IPv4/UDP.
Signed-off-by: NÍñigo Huguet <ihuguet@redhat.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Adding support for the LAN9354 device by allowing it to use
the LAN9303 DSA driver.  These devices have the same underlying
access and control methods and from a feature set point of view
the LAN9354 is a superset of the LAN9303.

The MDIO access method has been tested on a SAMA5D3-EDS board
with a LAN9354 RMII daughter card.

While the SPI access method should also be the same, it has not
been tested and as such is not included at this time.
Signed-off-by: NJerry Ray <jerry.ray@microchip.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add initial BYTE_ORDER read to sync the 32-bit accesses over the 16-bit
mdio bus to improve driver robustness.

The lan9303 expects two mdio read transactions back-to-back to read a
32-bit register. The first read transaction causes the other half of the
32-bit register to get latched.  The subsequent read returns the latched
second half of the 32-bit read. The BYTE_ORDER register is an exception to
this rule. As it is a constant value, there is no need to latch the second
half. We read this register first in case there were reads during the boot
loader process that might have occurred prior to this driver taking over
ownership of accessing this device.

This patch has been tested on the SAMA5D3-EDS with a LAN9303 RMII daughter
card.
Signed-off-by: NJerry Ray <jerry.ray@microchip.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add register validation for KSZ9896.
Signed-off-by: NRomain Naour <romain.naour@skf.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

According to the KSZ9477S datasheet, there is no global register
at 0x033C and 0x033D addresses.
Signed-off-by: NRomain Naour <romain.naour@skf.com>
Cc: Oleksij Rempel <o.rempel@pengutronix.de>
Tested-by: NOleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add support for the KSZ9896 6-port Gigabit Ethernet Switch to the
ksz9477 driver. The KSZ9896 supports both SPI (already in) and I2C.
Signed-off-by: NRomain Naour <romain.naour@skf.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add support for the KSZ9896 6-port Gigabit Ethernet Switch to the
ksz9477 driver.

Although the KSZ9896 is already listed in the device tree binding
documentation since a1c0ed24 (dt-bindings: net: dsa: document
additional Microchip KSZ9477 family switches) the chip id
(0x00989600) is not recognized by ksz_switch_detect() and rejected
by the driver.

The KSZ9896 is similar to KSZ9897 but has only one configurable
MII/RMII/RGMII/GMII cpu port.
Signed-off-by: NRomain Naour <romain.naour@skf.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Daniel Borkmann says:

====================
pull-request: bpf-next 2022-09-05

The following pull-request contains BPF updates for your *net-next* tree.

We've added 106 non-merge commits during the last 18 day(s) which contain
a total of 159 files changed, 5225 insertions(+), 1358 deletions(-).

There are two small merge conflicts, resolve them as follows:

1) tools/testing/selftests/bpf/DENYLIST.s390x

  Commit 27e23836 ("selftests/bpf: Add lru_bug to s390x deny list") in
  bpf tree was needed to get BPF CI green on s390x, but it conflicted with
  newly added tests on bpf-next. Resolve by adding both hunks, result:

  [...]
  lru_bug                                  # prog 'printk': failed to auto-attach: -524
  setget_sockopt                           # attach unexpected error: -524                                               (trampoline)
  cb_refs                                  # expected error message unexpected error: -524                               (trampoline)
  cgroup_hierarchical_stats                # JIT does not support calling kernel function                                (kfunc)
  htab_update                              # failed to attach: ERROR: strerror_r(-524)=22                                (trampoline)
  [...]

2) net/core/filter.c

  Commit 1227c177 ("net: Fix data-races around sysctl_[rw]mem_(max|default).")
  from net tree conflicts with commit 29003875 ("bpf: Change bpf_setsockopt(SOL_SOCKET)
  to reuse sk_setsockopt()") from bpf-next tree. Take the code as it is from
  bpf-next tree, result:

  [...]
	if (getopt) {
		if (optname == SO_BINDTODEVICE)
			return -EINVAL;
		return sk_getsockopt(sk, SOL_SOCKET, optname,
				     KERNEL_SOCKPTR(optval),
				     KERNEL_SOCKPTR(optlen));
	}

	return sk_setsockopt(sk, SOL_SOCKET, optname,
			     KERNEL_SOCKPTR(optval), *optlen);
  [...]

The main changes are:

1) Add any-context BPF specific memory allocator which is useful in particular for BPF
   tracing with bonus of performance equal to full prealloc, from Alexei Starovoitov.

2) Big batch to remove duplicated code from bpf_{get,set}sockopt() helpers as an effort
   to reuse the existing core socket code as much as possible, from Martin KaFai Lau.

3) Extend BPF flow dissector for BPF programs to just augment the in-kernel dissector
   with custom logic. In other words, allow for partial replacement, from Shmulik Ladkani.

4) Add a new cgroup iterator to BPF with different traversal options, from Hao Luo.

5) Support for BPF to collect hierarchical cgroup statistics efficiently through BPF
   integration with the rstat framework, from Yosry Ahmed.

6) Support bpf_{g,s}et_retval() under more BPF cgroup hooks, from Stanislav Fomichev.

7) BPF hash table and local storages fixes under fully preemptible kernel, from Hou Tao.

8) Add various improvements to BPF selftests and libbpf for compilation with gcc BPF
   backend, from James Hilliard.

9) Fix verifier helper permissions and reference state management for synchronous
   callbacks, from Kumar Kartikeya Dwivedi.

10) Add support for BPF selftest's xskxceiver to also be used against real devices that
    support MAC loopback, from Maciej Fijalkowski.

11) Various fixes to the bpf-helpers(7) man page generation script, from Quentin Monnet.

12) Document BPF verifier's tnum_in(tnum_range(), ...) gotchas, from Shung-Hsi Yu.

13) Various minor misc improvements all over the place.

* https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (106 commits)
  bpf: Optimize rcu_barrier usage between hash map and bpf_mem_alloc.
  bpf: Remove usage of kmem_cache from bpf_mem_cache.
  bpf: Remove prealloc-only restriction for sleepable bpf programs.
  bpf: Prepare bpf_mem_alloc to be used by sleepable bpf programs.
  bpf: Remove tracing program restriction on map types
  bpf: Convert percpu hash map to per-cpu bpf_mem_alloc.
  bpf: Add percpu allocation support to bpf_mem_alloc.
  bpf: Batch call_rcu callbacks instead of SLAB_TYPESAFE_BY_RCU.
  bpf: Adjust low/high watermarks in bpf_mem_cache
  bpf: Optimize call_rcu in non-preallocated hash map.
  bpf: Optimize element count in non-preallocated hash map.
  bpf: Relax the requirement to use preallocated hash maps in tracing progs.
  samples/bpf: Reduce syscall overhead in map_perf_test.
  selftests/bpf: Improve test coverage of test_maps
  bpf: Convert hash map to bpf_mem_alloc.
  bpf: Introduce any context BPF specific memory allocator.
  selftest/bpf: Add test for bpf_getsockopt()
  bpf: Change bpf_getsockopt(SOL_IPV6) to reuse do_ipv6_getsockopt()
  bpf: Change bpf_getsockopt(SOL_IP) to reuse do_ip_getsockopt()
  bpf: Change bpf_getsockopt(SOL_TCP) to reuse do_tcp_getsockopt()
  ...
====================

Link: https://lore.kernel.org/r/20220905161136.9150-1-daniel@iogearbox.netSigned-off-by: NPaolo Abeni <pabeni@redhat.com>

During stress tests with adding VF to namespace and changing vf's
trust there was a race between iavf_reset_task and iavf_close.
Sometimes when IAVF_FLAG_AQ_DISABLE_QUEUES from iavf_close was sent
to PF after reset and before IAVF_AQ_GET_CONFIG was sent then PF
returns error IAVF_NOT_SUPPORTED to disable queues request and
following requests. There is need to get_config before other
aq_required will be send but iavf_close clears all flags, if
get_config was not sent before iavf_close, then it will not be send
at all.

In case when IAVF_FLAG_AQ_GET_OFFLOAD_VLAN_V2_CAPS was sent before
IAVF_FLAG_AQ_DISABLE_QUEUES then there was rtnl_lock deadlock
between iavf_close and iavf_adminq_task until iavf_close timeouts
and disable queues was sent after iavf_close ends.

There was also a problem with sending delete/add filters.
Sometimes when filters was not yet added to PF and in
iavf_close all filters was set to remove there might be a try
to remove nonexistent filters on PF.

Add aq_required_tmp to save aq_required flags and send them after
disable_queues will be handled. Clear flags given to iavf_down
different than IAVF_FLAG_AQ_GET_CONFIG as this flag is necessary
to sent other aq_required. Remove some flags that we don't
want to send as we are in iavf_close and we want to disable
interface. Remove filters which was not yet sent and send del
filters flags only when there are filters to remove.
Signed-off-by: NMichal Jaron <michalx.jaron@intel.com>
Signed-off-by: NMateusz Palczewski <mateusz.palczewski@intel.com>
Tested-by: NKonrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: NTony Nguyen <anthony.l.nguyen@intel.com>