linux-stable.git/drivers/net/wireless/ath, branch v5.7

ath11k: fix compiler warnings without CONFIG_THERMAL

2020-04-06T14:21:23+00:00

drivers/net/wireless/ath/ath11k/thermal.h:45:1:
 warning: no return statement in function returning non-void [-Wreturn-type]
drivers/net/wireless/ath/ath11k/core.c:416:28: error:
 passing argument 1 of 'ath11k_thermal_unregister' from incompatible pointer type [-Werror=incompatible-pointer-types]

Add missing return 0 in ath11k_thermal_set_throttling,
and fix ath11k_thermal_unregister param type.

Fixes: 2a63bbca06b2 ("ath11k: add thermal cooling device support")
Signed-off-by: YueHaibing 
Signed-off-by: Kalle Valo 
Link: https://lore.kernel.org/r/20200403083414.31392-1-yuehaibing@huawei.com

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

2020-04-01T00:29:33+00:00

Pull networking updates from David Miller:
 "Highlights:

   1) Fix the iwlwifi regression, from Johannes Berg.

   2) Support BSS coloring and 802.11 encapsulation offloading in
      hardware, from John Crispin.

   3) Fix some potential Spectre issues in qtnfmac, from Sergey
      Matyukevich.

   4) Add TTL decrement action to openvswitch, from Matteo Croce.

   5) Allow paralleization through flow_action setup by not taking the
      RTNL mutex, from Vlad Buslov.

   6) A lot of zero-length array to flexible-array conversions, from
      Gustavo A. R. Silva.

   7) Align XDP statistics names across several drivers for consistency,
      from Lorenzo Bianconi.

   8) Add various pieces of infrastructure for offloading conntrack, and
      make use of it in mlx5 driver, from Paul Blakey.

   9) Allow using listening sockets in BPF sockmap, from Jakub Sitnicki.

  10) Lots of parallelization improvements during configuration changes
      in mlxsw driver, from Ido Schimmel.

  11) Add support to devlink for generic packet traps, which report
      packets dropped during ACL processing. And use them in mlxsw
      driver. From Jiri Pirko.

  12) Support bcmgenet on ACPI, from Jeremy Linton.

  13) Make BPF compatible with RT, from Thomas Gleixnet, Alexei
      Starovoitov, and your's truly.

  14) Support XDP meta-data in virtio_net, from Yuya Kusakabe.

  15) Fix sysfs permissions when network devices change namespaces, from
      Christian Brauner.

  16) Add a flags element to ethtool_ops so that drivers can more simply
      indicate which coalescing parameters they actually support, and
      therefore the generic layer can validate the user's ethtool
      request. Use this in all drivers, from Jakub Kicinski.

  17) Offload FIFO qdisc in mlxsw, from Petr Machata.

  18) Support UDP sockets in sockmap, from Lorenz Bauer.

  19) Fix stretch ACK bugs in several TCP congestion control modules,
      from Pengcheng Yang.

  20) Support virtual functiosn in octeontx2 driver, from Tomasz
      Duszynski.

  21) Add region operations for devlink and use it in ice driver to dump
      NVM contents, from Jacob Keller.

  22) Add support for hw offload of MACSEC, from Antoine Tenart.

  23) Add support for BPF programs that can be attached to LSM hooks,
      from KP Singh.

  24) Support for multiple paths, path managers, and counters in MPTCP.
      From Peter Krystad, Paolo Abeni, Florian Westphal, Davide Caratti,
      and others.

  25) More progress on adding the netlink interface to ethtool, from
      Michal Kubecek"

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2121 commits)
  net: ipv6: rpl_iptunnel: Fix potential memory leak in rpl_do_srh_inline
  cxgb4/chcr: nic-tls stats in ethtool
  net: dsa: fix oops while probing Marvell DSA switches
  net/bpfilter: remove superfluous testing message
  net: macb: Fix handling of fixed-link node
  net: dsa: ksz: Select KSZ protocol tag
  netdevsim: dev: Fix memory leak in nsim_dev_take_snapshot_write
  net: stmmac: add EHL 2.5Gbps PCI info and PCI ID
  net: stmmac: add EHL PSE0 & PSE1 1Gbps PCI info and PCI ID
  net: stmmac: create dwmac-intel.c to contain all Intel platform
  net: dsa: bcm_sf2: Support specifying VLAN tag egress rule
  net: dsa: bcm_sf2: Add support for matching VLAN TCI
  net: dsa: bcm_sf2: Move writing of CFP_DATA(5) into slicing functions
  net: dsa: bcm_sf2: Check earlier for FLOW_EXT and FLOW_MAC_EXT
  net: dsa: bcm_sf2: Disable learning for ASP port
  net: dsa: b53: Deny enslaving port 7 for 7278 into a bridge
  net: dsa: b53: Prevent tagged VLAN on port 7 for 7278
  net: dsa: b53: Restore VLAN entries upon (re)configuration
  net: dsa: bcm_sf2: Fix overflow checks
  hv_netvsc: Remove unnecessary round_up for recv_completion_cnt
  ...

ath10k: Fill GCMP MIC length for PMF

2020-03-22T10:22:01+00:00

GCMP MIC length is not filled for GCMP/GCMP-256 cipher suites in
PMF enabled case. Due to mismatch in MIC length, deauth/disassoc frames
are unencrypted.
This patch fills proper MIC length for GCMP/GCMP-256 cipher suites.

Tested HW: QCA9984, QCA9888
Tested FW: 10.4-3.6-00104

Signed-off-by: Yingying Tang 
Co-developed-by: Sowmiya Sree Elavalagan 
Signed-off-by: Sowmiya Sree Elavalagan 
Signed-off-by: Kalle Valo

ath11k: Perform per-msdu rx processing

2020-03-18T11:53:49+00:00

As Hash based reo destination selection is configured,
the decapped packets reach different reo destintion rings
based on the destintaion ring selected for the computed hash (based on
the 5-tuple {ip src/ip dst/src port/dst port/protocol}) by hw and
as configured by driver.

Hence the current implementation of amsdu list based processing after all
the subframes of amsdu are received (since all msdu's for a pdev are
received in same reo dest ring), is not applicable here and hence is
replaced with per msdu based handling as these subframes
can be received in different reo dest rings.

Also, as some of the rx descriptor fields might be valid only for the
first msdu (for ex. received 80211 header, encryption type, etc),
it might not be useful now as we cannot sync between different
subframes received in different rings. Hence do not rely on those
fields and replace them with fieds valid only on per msdu descriptors.
Also cache other details such as encryption type for a peer so that
it can be reused when a packet is received from it.

Co-developed-by: Tamizh Chelvam Raja 
Signed-off-by: Tamizh Chelvam Raja 
Signed-off-by: Sriram R 
Signed-off-by: Kalle Valo

ath11k: Configure hash based reo destination ring selection

2020-03-18T11:53:37+00:00

Current implementation of pdev based reo destination ring
selection is replaced by hash based ring selection so as to
ensure all the available rings are utilized for better performance.

The 4 reo destination rings are selected by the HW based on the
hash value computed from the received packet based on the 5 tuple
{ip src/ip dst/src port/dst port/protocol}. Out of the 32 hash values
used by the hw, the driver assigns 8 values per reo destination ring
to each of the 4 reo destination rings.

Signed-off-by: Sriram R 
Signed-off-by: Kalle Valo

ath11k: Adding proper validation before accessing tx_stats

2020-03-18T11:52:42+00:00

Before dumping tx_stats proper validation was not been taken care of.
Due to which we were encountering null pointer dereference(kernel panic).
This scenario will arise when a station is getting disconnected and
we are changing the STA state by ath11k_mac_op_sta_state and assigning
tx_stats as NULL and after this the mac80211 will destroy the
debugfs entry from where we are trying to read the stats.

If anyone tries to dump tx_stats for that STA in between setting
tx_stats to NULL and debugfs file removal without checking the NULL
value it will run into a NULL pointer exception.

Proceeding with the analysis of "ARM Kernel Panic".
The APSS crash happened due to OOPS on CPU 3.
Crash Signature : Unable to handle kernel NULL pointer dereference at
virtual address 00000360
During the crash,
PC points to "ath11k_debug_htt_stats_init+0x16ac/0x1acc [ath11k]"
LR points to "ath11k_debug_htt_stats_init+0x1688/0x1acc [ath11k]".
The Backtrace obtained is as follows:
[] ath11k_debug_htt_stats_init+0x16ac/0x1acc [ath11k]
[] do_loop_readv_writev+0x60/0xa4
[] do_readv_writev+0xd8/0x19c
[] vfs_readv+0x34/0x48
[] default_file_splice_read+0x1a8/0x2e4
[] do_splice_to+0x78/0x98
[] splice_direct_to_actor+0xb0/0x1a4
[] do_splice_direct+0x84/0xa8
[] do_sendfile+0x160/0x2a4
[] SyS_sendfile64+0xb4/0xc8

Signed-off-by: Pravas Kumar Panda 
Signed-off-by: Kalle Valo

ath11k: dump SRNG stats during FW assert

2020-03-18T11:47:27+00:00

Dumping the SRNG stats during FW assert, this would help
in debugging ring stuck issues.

Co-developed-by: Karthikeyan Periyasamy 
Signed-off-by: Karthikeyan Periyasamy 
Signed-off-by: Manikanta Pubbisetty 
Signed-off-by: Kalle Valo

ath11k: fill channel info from rx channel

2020-03-18T11:46:43+00:00

Fill the channel information from rx channel for the packet
which has invalid channel info from meta data.

Signed-off-by: Venkateswara Naralasetty 
Signed-off-by: Kalle Valo

ath11k: Supporting RX ring backpressure HTT event and stats handling

2020-03-18T11:43:54+00:00

The Firmware sends HTT event to host whenever there is a
backpressure on RX rings, Handling such event and dumping
info on the console under the "ATH11K_DBG_DP_HTT"  debug level.

Fetching RX ring backpressure histogram from FW via htt_stats debugfs.

 #echo "24" > /sys/kernel/debug/ath11k/ipq8074/macX/htt_stats_type
 #cat /sys/kernel/debug/ath11k/ipq8074/macX/htt_stats

Signed-off-by: Vikas Patel 
Signed-off-by: Sriram R 
Signed-off-by: Kalle Valo

ath11k: add handling for BSS color

2020-03-17T06:41:12+00:00

This patch adds code to handle the BSS_CHANGED_BSS_COLOR flag. It will
trigger the propagation of BSS color settings into the FW. Handling is
slightly different between AP and STA interfaces.

Signed-off-by: John Crispin 
Signed-off-by: Kalle Valo