Merge tag 'mac80211-next-for-net-next-2019-10-11' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

Johannes Berg says:

====================
A few more small things, nothing really stands out:
 * minstrel improvements from Felix
 * a TX aggregation simplification
 * some additional capabilities for hwsim
 * minor cleanups & docs updates
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

Commit c10e6cf8 ("net: genetlink: push attrbuf allocation and parsing
to a separate function") moved attribute buffer allocation and attribute
parsing from genl_family_rcv_msg_doit() into a separate function
genl_family_rcv_msg_attrs_parse() which, unlike the previous code, calls
__nlmsg_parse() even if family->maxattr is 0 (i.e. the family does its own
parsing). The parser error is ignored and does not propagate out of
genl_family_rcv_msg_attrs_parse() but an error message ("Unknown attribute
type") is set in extack and if further processing generates no error or
warning, it stays there and is interpreted as a warning by userspace.

Dumpit requests are not affected as genl_family_rcv_msg_dumpit() bypasses
the call of genl_family_rcv_msg_attrs_parse() if family->maxattr is zero.
Move this logic inside genl_family_rcv_msg_attrs_parse() so that we don't
have to handle it in each caller.

v3: put the check inside genl_family_rcv_msg_attrs_parse()
v2: adjust also argument of genl_family_rcv_msg_attrs_free()

Fixes: c10e6cf8 ("net: genetlink: push attrbuf allocation and parsing to a separate function")
Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

tcp_zerocopy_receive() rounds down the zc->length a multiple of
PAGE_SIZE. This results in two issues:
- tcp_zerocopy_receive sets recv_skip_hint to the length of the
  receive queue if the zc->length input is smaller than the
  PAGE_SIZE, even though the data in receive queue could be
  zerocopied.
- tcp_zerocopy_receive would set recv_skip_hint of 0, in cases
  where we have a little bit of data after the perfectly-sized
  packets.

To fix these issues, do not store the rounded down value in
zc->length. Round down the length passed to zap_page_range(),
and return min(inq, zc->length) when the zap_range is 0.
Signed-off-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Jiri Pirko says:

====================
netdevsim: add devlink health reporters support

This patchset adds support for devlink health reporter interface
testing. First 2 patches are small dependencies of the last 2.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

Add basic tests to verify functionality of netdevsim reporters.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Implement "empty" and "dummy" reporters. The first one is really simple
and does nothing. The other one has debugfs files to trigger breakage
and it is able to do recovery. The ops also implement dummy fmsg
content.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

During health reporter operations, driver might want to fill-up
the extack message, so propagate extack down to the health reporter ops.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

If reporter state is healthy, don't call into a driver for recover and
don't increase recovery count.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

When the MAC address is supplied via device tree or a random
MAC is generated it has to be written to the asix chip in
order to receive any data.

Previously in 9fb137ae ("net: usb: ax88179_178a: allow
optionally getting mac address from device tree") this line was
omitted because it seemed to work perfectly fine without it.

But it was simply not detected because the chip keeps the mac
stored even beyond a reset and it was tested on a hardware
with an integrated UPS where the asix chip was permanently
powered on even throughout power cycles.

Fixes: 9fb137ae ("net: usb: ax88179_178a: allow optionally getting mac address from device tree")
Signed-off-by: Peter Fink <pfink@christ-es.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

Remove pointless use of size return variable by directly returning
sizes.
Signed-off-by: Vito Caputo <vcaputo@pengaru.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Remove pointless return variable dance.

Appears vestigial from when the function did locking as seen in
unix_find_socket_byinode(), but locking is handled in
unix_find_socket_byname() for __unix_find_socket_byname().
Signed-off-by: Vito Caputo <vcaputo@pengaru.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Andrew Jeffery says:

====================
net: ftgmac100: Ungate RCLK for RMII on ASPEED MACs

This series slightly extends the devicetree binding and driver for the
FTGMAC100 to describe an optional RMII RCLK gate in the clocks property.
Currently it's necessary for the kernel to ungate RCLK on the AST2600 in NCSI
configurations as u-boot does not yet support NCSI (which uses the
R(educed)MII).

v2:
* Clear up Reduced vs Reversed MII in the cover letter
* Mitigate anxiety in the commit message for 1/3
* Clarify that AST2500 is also affected in the clocks property description in
  2/3
* Rework the error paths and update some comments in 3/3

v1 can be found here: https://lore.kernel.org/netdev/20191008115143.14149-1-andrew@aj.id.au/
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

The 50MHz RCLK has to be enabled before the RMII interface will function.
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

Critically, the AST2600 requires ungating the RMII RCLK if e.g. NCSI is
in use.
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Acked-by: Joel Stanley <joel@jms.id.au>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

The AST2600 contains an FTGMAC100-compatible MAC, although the MDIO
controller previously embedded in the MAC has been moved out to a
dedicated MDIO block.
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Acked-by: Joel Stanley <joel@jms.id.au>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

OCB (Outside the Context of a BSS) interfaces are the
implementation of 802.11p, support that.
Signed-off-by: Ramon Fontes <ramonreisfontes@gmail.com>
Link: https://lore.kernel.org/r/20191010181307.11821-2-ramonreisfontes@gmail.comSigned-off-by: Johannes Berg <johannes.berg@intel.com>

These new 5GHz channels and 5/10 MHz support should be
available for OCB usage (802.11p).
Signed-off-by: Ramon Fontes <ramonreisfontes@gmail.com>
Link: https://lore.kernel.org/r/20191010181307.11821-1-ramonreisfontes@gmail.comSigned-off-by: Johannes Berg <johannes.berg@intel.com>

Reduces per-rate data structure size
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Link: https://lore.kernel.org/r/20191008171139.96476-3-nbd@nbd.nameSigned-off-by: Johannes Berg <johannes.berg@intel.com>

Rate success probability usually fluctuates a lot under normal conditions.
With a simple EWMA, noise and fluctuation can be reduced by increasing the
window length, but that comes at the cost of introducing lag on sudden
changes.

This change replaces the EWMA implementation with a moving average that's
designed to significantly reduce lag while keeping a bigger window size
by being better at filtering out noise.

It is only slightly more expensive than the simple EWMA and still avoids
divisions in its calculation.

The algorithm is adapted from an implementation intended for a completely
different field (stock market trading), where the tradeoff of lag vs
noise filtering is equally important. It is based on the "smoothing filter"
from http://www.stockspotter.com/files/PredictiveIndicators.pdf.

I have adapted it to fixed-point math with some constants so that it uses
only addition, bit shifts and multiplication

To better make use of the filtering and bigger window size, the update
interval time is cut in half.

For testing, the algorithm can be reverted to the older one via debugfs
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Link: https://lore.kernel.org/r/20191008171139.96476-2-nbd@nbd.nameSigned-off-by: Johannes Berg <johannes.berg@intel.com>

Use a slightly different threshold for downgrading spatial streams to
make it easier to calculate without divisions.
Slightly reduces CPU overhead.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Link: https://lore.kernel.org/r/20191008171139.96476-1-nbd@nbd.nameSigned-off-by: Johannes Berg <johannes.berg@intel.com>

cfg80211_assign_cookie already checks & prevents a 0 from being
returned, so the explicit loop is unnecessary.
Signed-off-by: Denis Kenzior <denkenz@gmail.com>
Link: https://lore.kernel.org/r/20191008164350.2836-1-denkenz@gmail.comSigned-off-by: Johannes Berg <johannes.berg@intel.com>

This will ensure that any new TSO related flags added (which
would be part of ALL_TSO mask and IPvlan driver doesn't need
to update every time new flag gets added.
Signed-off-by: Mahesh Bandewar <maheshb@google.com>
Suggested-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>

Added test case for layered IP operation for a single source IP4/IP6
address and a single destination IP4/IP6 address.
Signed-off-by: Roman Mashak <mrv@mojatatu.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>

Use devm_platform_ioremap_resource() to simplify the code a bit.
This is detected by coccinelle.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>

Before reading the team port list, we need to acquire the RCU read lock.
Also change list_for_each_entry() to list_for_each_entry_rcu().

v2:
repost the patch to net-next and remove fixes flag as this is a cosmetic
change.
Suggested-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>

Since break is not useful after a return, remove it.
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>

Cleanup the .driver setup to just do it once, to avoid
the following sparse warning:

drivers/net/ethernet/calxeda/xgmac.c:1914:10: warning: Initializer entry defined twice
drivers/net/ethernet/calxeda/xgmac.c:1920:10:   also defined here
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>

Karsten Graul says:

====================
net/smc: improve termination handling

First set of patches to improve termination handling.
====================
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>

Make sure a terminated SMC socket reaches the CLOSED state.
Even if sending of close flags fails, change the socket state to
the intended state to avoid dangling sockets not reaching the
CLOSED state.
Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>

Add a "going_away" indication to ISM devices and IB ports and
avoid creation of new connections on such disappearing devices.

And do not handle ISM events if ISM device is disappearing.
Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>

SMCD link groups belong to certain ISM-devices and SMCR link group
links belong to certain IB-devices. Increase the refcount for
these devices, as long as corresponding link groups exist.
Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>

This patch introduces separate locks for the split SMCD and SMCR
link group lists.
Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>

Currently SMCD and SMCR link groups are maintained in one list.
To facilitate abnormal termination handling they are split into
a separate list for SMCR link groups and separate lists for SMCD
link groups per SMCD device.
Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>

mac_delay value will be divided by 550/170 in mt2712_delay_ps2stage(),
which is invoked at the beginning of mt2712_set_delay(), and the value
should be restored at the end of mt2712_set_delay().
Or, mac_delay will be divided again when invoking mt2712_set_delay()
when resume back.
So, add mt2712_delay_stage2ps() to mt2712_set_delay() to recovery the
original mac_delay value.
Signed-off-by: Biao Huang <biao.huang@mediatek.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>

Lots of fixes to kernel-doc in structs, enums, and functions.
Also add header files that are being used but not yet #included.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Yamin Friedman <yaminf@mellanox.com>
Cc: Tal Gilboa <talgi@mellanox.com>
Cc: Saeed Mahameed <saeedm@mellanox.com>
Cc: Doug Ledford <dledford@redhat.com>
Cc: Jason Gunthorpe <jgg@mellanox.com>
Cc: linux-rdma@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>

Xin Long says:
====================
There are 4 events defined in rfc5061 missed in linux sctp:
SCTP_ADDR_ADDED, SCTP_ADDR_REMOVED, SCTP_ADDR_MADE_PRIM and
SCTP_SEND_FAILED_EVENT.

This patchset is to add them up.
====================
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>

This patch is to add a new event SCTP_SEND_FAILED_EVENT described in
rfc6458#section-6.1.11. It's a update of SCTP_SEND_FAILED event:

  struct sctp_sndrcvinfo ssf_info is replaced with
  struct sctp_sndinfo ssfe_info in struct sctp_send_failed_event.

SCTP_SEND_FAILED is being deprecated, but we don't remove it in this
patch. Both are being processed in sctp_datamsg_destroy() when the
corresp event flag is set.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>

sctp_ulpevent_nofity_peer_addr_change() would be called in
sctp_assoc_set_primary() to send SCTP_ADDR_MADE_PRIM event
when this transport is set to the primary path of the asoc.

This event is described in rfc6458#section-6.1.2:

  SCTP_ADDR_MADE_PRIM:  This address has now been made the primary
     destination address.  This notification is provided whenever an
     address is made primary.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>

sctp_ulpevent_nofity_peer_addr_change() is called in
sctp_assoc_rm_peer() to send SCTP_ADDR_REMOVED event
when this transport is removed from the asoc.

This event is described in rfc6458#section-6.1.2:

  SCTP_ADDR_REMOVED:  The address is no longer part of the
     association.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>

A helper sctp_ulpevent_nofity_peer_addr_change() will be extracted
to make peer_addr_change event and enqueue it, and the helper will
be called in sctp_assoc_add_peer() to send SCTP_ADDR_ADDED event.

This event is described in rfc6458#section-6.1.2:

  SCTP_ADDR_ADDED:  The address is now part of the association.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>