Report packets and bytes transferred through a vmbus channel via ethtool.
This supersedes need for per-cpu statistics.

Example:
$ ethtool -S eth0
NIC statistics:
...
     tx_queue_0_packets: 3523179
     tx_queue_0_bytes: 505370920
     rx_queue_0_packets: 41430490
     rx_queue_0_bytes: 62714661254
     tx_queue_1_packets: 0
     tx_queue_1_bytes: 0
     rx_queue_1_packets: 0
     rx_queue_1_bytes: 0
...
Reviewed-by: NLong Li <longli@microsoft.com>
Reviewed-by: NK. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: NHaiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: NSimon Xiao <sixiao@microsoft.com>
Signed-off-by: NStephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Most drivers do not increment transmit statistics until after the
transmit is completed. This will also be necessary for BQL support.

Slight additional complexity because the netvsc driver aggregates
multiple packets into one transmit.
Signed-off-by: NStephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Since now keep track of per-queue outstanding sends, we can avoid
one atomic update by removing no longer needed per-device atomic.
Signed-off-by: NStephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

All caller's already have pointer to netvsc_device so pass it.
Signed-off-by: NStephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

All the caller's/callee's know that the format of the device_add
parameter is a netvsc_device_info struct.
Signed-off-by: NStephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Do manual optimizations of receive path:
  - remove checks for impossible conditions (but keep checks
    for bad data from host)
  - pass argument down, rather than having callee recompute what
    is already known
  - remove indirection about receive buffer datalength
  - remove dependence on VLAN_TAG_PRESENCE
  - use _hot/_cold and likely/unlikely
Signed-off-by: NStephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Put all the per-channel state together in one data struct.
Signed-off-by: NStephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Fixes set but never used warnings
Signed-off-by: NStephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The netvsc select queue function was missing many of the flow caching
features that exist in default tx queue selection. Add the same
logic to remember queue based on socket and implement two level
mapping (like RSS).
Signed-off-by: NStephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Allow setting receive indirection table. Also uses the system standard
for initialization.
Signed-off-by: NStephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This allows for number of channels to be managed in a manner similar
to existing hardware drivers. It also removes the restriction of
maximum 8 channels and allows as many as the host will allow.
Signed-off-by: NStephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

For some cases it is useful to be able to change RSS key value.
For example, replacing RSS key with a symmetric hash.
Signed-off-by: NStephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Report current components used in RSS hash.
Signed-off-by: NStephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Report actual number of receive queues to ethtool.
Signed-off-by: NStephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Redo how Hyper-V network driver negotiates offload features. Query the
host to determine offload settings, and use the result.

Also:
  * disable IPv4 header checksum offload (not used by Linux)
  * enable TSO only if host supports
  * enable UDP checksum offload if supported
  * don't advertise support for checksumming of non-IP protocols
  * adjust GSO maximum segment size
  * enable HIGHDMA
Signed-off-by: NStephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The ring buffer mapping now handles the wraparound case
inside get_next_pkt_raw. Therefore it is not necessary to have an
additional special receive staging buffer.

See commit 1562edaed8c164ca5199 ("Drivers: hv: ring_buffer: count on
wrap around mappings")
Signed-off-by: NStephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Andrew Lunn says:

====================
External MDIO support for mv88e6xxx

The mv88e6390 family of switches has two MDIO busses, one internal to
the switch and a second one for external usage. Older generations of switches
have a single MDIO bus, which is used both internally and externally.

Refactor the existing MDIO driver code to allow for multiple MDIO
busses, and implement the second MDIO bus on mv88e6390.

This is a rewrite of a patch previously submitted as part of "Batch
3". It has been broken up into 5 smaller patches. A compatible string
is now used in the device tree to indicate the external MDIO bus.
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

With all the infrastructure in place, implement access to the external
MDIO bus on the 6390 family.
Signed-off-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The mv88e6390 has multiple MDIO busses. Generalize the parsing of the
device tree to support multiple mdio nodes. The external mdio bus has
a compatible strings to indicate it is external.

Keep a linked list of busses, placing the external mdio bus at the
tail of the list. When within the driver an mdio bus is needed,
e.g. for EEE or SERDES, use the head of the list which should be the
internal bus.
Signed-off-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Have the MDIO bus driver code allocate a private structure and make
the chip a member of it. This will allow us to add further members in
the future.
Signed-off-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

In preparation for supporting multiple MDIO busses, pass the mii_bus
structure to all PHY operations. It will in future then be clear on
which MDIO bus the operation should be performed.

For reads/write from phylib, the mii_bus is readily available. However
some internal code also access the PHY, e.g. for EEE and SERDES. Make
this code use the one and only currently available MDIO bus.
Signed-off-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The mv88e6165 family has the internal PHYs mapped directly onto the
SMI register space as the switch. So the registers can be read
directly. Put a wrapper around this, in preparation for changing the
signature in order to support the external MDIO bus of the 6390.
Signed-off-by: NAndrew Lunn <andrew@lunn.ch>
Reviewed-by: NVivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Table sctp_timer_tbl is missing a TIMEOUT_RECONF string so
add this in. Also compare timeout with the size of the array
sctp_timer_tbl rather than SCTP_EVENT_TIMEOUT_MAX.  Also add
a build time check that SCTP_EVENT_TIMEOUT_MAX is correct
so we don't ever get this kind of mismatch between the table
and SCTP_EVENT_TIMEOUT_MAX in the future.

Kudos to Marcelo Ricardo Leitner for spotting the missing string
and suggesting the build time sanity check.

Fixes CoverityScan CID#1397639 ("Out-of-bounds read")

Fixes: 7b9438de ("sctp: add stream reconf timer")
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Acked-by: NNeil Horman <nhorman@tuxdriver.com>
Reviewed-by: NXin Long <lucien.xin@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

David VomLehn says:

====================
net: ethernet: aquantia: Add AQtion 2.5/5 GB NIC driver

This series introduces the AQtion NIC driver for the aQuantia
AQC107/AQC108 network devices.

v1: Initial version
v2: o Make necessary drivers/net/ethernet changes to integrate software
    o Drop intermediate atlantic directory
    o Remove Makefile things only appropriate to out of tree module
      building
v3: o Move changes to drivers/net/ethernet/{Kconfig,Makefile} to the last
      patch to ensure clean bisection.
    o Removed inline attribute aq_hw_write_req() as it was defined in
      only one .c file.
    o #included pci.h in aq_common.h to get struct pci definition.
    o Modified code to unlock based execution flow rather than using a
      flag.
    o Made a number of functions that were only used in a single file
      static.
    o Cleaned up error and return code handling in various places.
    o Remove AQ_CFG_IP_ALIGN definition.
    o Other minor code clean up.
v4: o Using do_div for 64 bit division.
    o Modified NIC statistics code.
    o Using build_skb instead netdev_alloc_skb for single fragment packets.
    o Removed extra aq_nic.o from Makefile
v5: o Removed extra newline at the end of the files.
v6: o Removed unnecessary cast from void*.
    o Reworked strings array for ethtool statistics.
    o Added stringset == ETH_SS_STATS checking.
    o AQ_OBJ_HEADER replaced to aq_obj_header_s struct.
    o AQ_OBJ_SET/TST/CLR macroses replaced to inline functions.
    o Driver sources placed in to atlantic directory.
    o Fixed compilation warnings (Make W=1)
    o Added firmware version checking.
    o Code cleaning.
v7  o Removed unnecessary cast from memory allocation function (aq_ring.c).
v8  o Switched to using kcalloc instead kzalloc.
    o Now provide bus_info for ethtool
    o Used div() to avoid __bad_udelay build error.
Signed-off-by: NAlexander Loktionov <Alexander.Loktionov@aquantia.com>
Signed-off-by: NDmitrii Tarakanov <Dmitrii.Tarakanov@aquantia.com>
Signed-off-by: NPavel Belous <Pavel.Belous@aquantia.com>
Signed-off-by: NDavid M. VomLehn <vomlehn@texas.net>
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Modify the drivers/net/ethernet/{Makefile,Kconfig} file to make them a
part of the network drivers build.
Signed-off-by: NAlexander Loktionov <Alexander.Loktionov@aquantia.com>
Signed-off-by: NDmitrii Tarakanov <Dmitrii.Tarakanov@aquantia.com>
Signed-off-by: NPavel Belous <Pavel.Belous@aquantia.com>
Signed-off-by: NDmitry Bezrukov <Dmitry.Bezrukov@aquantia.com>
Signed-off-by: NDavid M. VomLehn <vomlehn@texas.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add definitions that support receive side scaling.
Signed-off-by: NAlexander Loktionov <Alexander.Loktionov@aquantia.com>
Signed-off-by: NDmitrii Tarakanov <Dmitrii.Tarakanov@aquantia.com>
Signed-off-by: NPavel Belous <Pavel.Belous@aquantia.com>
Signed-off-by: NDmitry Bezrukov <Dmitry.Bezrukov@aquantia.com>
Signed-off-by: NDavid M. VomLehn <vomlehn@texas.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add the driver interfaces required for support by the ethtool utility.
Signed-off-by: NAlexander Loktionov <Alexander.Loktionov@aquantia.com>
Signed-off-by: NDmitrii Tarakanov <Dmitrii.Tarakanov@aquantia.com>
Signed-off-by: NPavel Belous <Pavel.Belous@aquantia.com>
Signed-off-by: NDmitry Bezrukov <Dmitry.Bezrukov@aquantia.com>
Signed-off-by: NDavid M. VomLehn <vomlehn@texas.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add functions to interface with the hardware and some utility functions.
Signed-off-by: NAlexander Loktionov <Alexander.Loktionov@aquantia.com>
Signed-off-by: NDmitrii Tarakanov <Dmitrii.Tarakanov@aquantia.com>
Signed-off-by: NPavel Belous <Pavel.Belous@aquantia.com>
Signed-off-by: NDmitry Bezrukov <Dmitry.Bezrukov@aquantia.com>
Signed-off-by: NDavid M. VomLehn <vomlehn@texas.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add common functions for Atlantic hardware abstraction layer.
Signed-off-by: NAlexander Loktionov <Alexander.Loktionov@aquantia.com>
Signed-off-by: NDmitrii Tarakanov <Dmitrii.Tarakanov@aquantia.com>
Signed-off-by: NPavel Belous <Pavel.Belous@aquantia.com>
Signed-off-by: NDmitry Bezrukov <Dmitry.Bezrukov@aquantia.com>
Signed-off-by: NDavid M. VomLehn <vomlehn@texas.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add functions that handle the PCI bus interface.
Signed-off-by: NAlexander Loktionov <Alexander.Loktionov@aquantia.com>
Signed-off-by: NDmitrii Tarakanov <Dmitrii.Tarakanov@aquantia.com>
Signed-off-by: NPavel Belous <Pavel.Belous@aquantia.com>
Signed-off-by: NDmitry Bezrukov <Dmitry.Bezrukov@aquantia.com>
Signed-off-by: NDavid M. VomLehn <vomlehn@texas.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add functions to manululate the vector of receive and transmit rings.
Signed-off-by: NAlexander Loktionov <Alexander.Loktionov@aquantia.com>
Signed-off-by: NDmitrii Tarakanov <Dmitrii.Tarakanov@aquantia.com>
Signed-off-by: NPavel.Belous <Pavel.Belous@aquantia.com>
Signed-off-by: NDmitry Bezrukov <Dmitry.Bezrukov@aquantia.com>
Signed-off-by: NDavid M. VomLehn <vomlehn@texas.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add Atlantic A0 and B0 specific functions.
Signed-off-by: NAlexander Loktionov <Alexander.Loktionov@aquantia.com>
Signed-off-by: NDmitrii Tarakanov <Dmitrii.Tarakanov@aquantia.com>
Signed-off-by: NPavel Belous <Pavel.Belous@aquantia.com>
Signed-off-by: NDmitry Bezrukov <Dmitry.Bezrukov@aquantia.com>
Signed-off-by: NDavid M. VomLehn <vomlehn@texas.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add support for code specific to the Atlantic NIC.
Signed-off-by: NAlexander Loktionov <Alexander.Loktionov@aquantia.com>
Signed-off-by: NDmitrii Tarakanov <Dmitrii.Tarakanov@aquantia.com>
Signed-off-by: NPavel Belous <Pavel.Belous@aquantia.com>
Signed-off-by: NDmitry Bezrukov <Dmitry.Bezrukov@aquantia.com>
Signed-off-by: NDavid M. VomLehn <vomlehn@texas.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add definitions of functions that interface directly with the hardware.
Signed-off-by: NAlexander Loktionov <Alexander.Loktionov@aquantia.com>
Signed-off-by: NDmitrii Tarakanov <Dmitrii.Tarakanov@aquantia.com>
Signed-off-by: NPavel.Belous <Pavel.Belous@aquantia.com>
Signed-off-by: NDmitry Bezrukov <Dmitry.Bezrukov@aquantia.com>
Signed-off-by: NDavid M. VomLehn <vomlehn@texas.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add code to support the transmit and receive ring buffers.
Signed-off-by: NAlexander Loktionov <Alexander.Loktionov@aquantia.com>
Signed-off-by: NDmitrii Tarakanov <Dmitrii.Tarakanov@aquantia.com>
Signed-off-by: NPavel Belous <Pavel.Belous@aquantia.com>
Signed-off-by: NDmitry Bezrukov <Dmitry.Bezrukov@aquantia.com>
Signed-off-by: NDavid M. VomLehn <vomlehn@texas.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add files containing the functions and definitions used in common in
different functional areas.
Signed-off-by: NAlexander Loktionov <Alexander.Loktionov@aquantia.com>
Signed-off-by: NDmitrii Tarakanov <Dmitrii.Tarakanov@aquantia.com>
Signed-off-by: NPavel Belous <Pavel.Belous@aquantia.com>
Signed-off-by: NDmitry Bezrukov <Dmitry.Bezrukov@aquantia.com>
Signed-off-by: NDavid M. VomLehn <vomlehn@texas.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Patches to create the make and configuration files.
Signed-off-by: NAlexander Loktionov <Alexander.Loktionov@aquantia.com>
Signed-off-by: NDmitrii Tarakanov <Dmitrii.Tarakanov@aquantia.com>
Signed-off-by: NPavel Belous <Pavel.Belous@aquantia.com>
Signed-off-by: NDmitry Bezrukov <Dmitry.Bezrukov@aquantia.com>
Signed-off-by: NDavid M. VomLehn <vomlehn@texas.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

We may be able to see invalid Broadcom tags when the hardware and drivers are
misconfigured, or just while exercising the error path. Instead of flooding
the console with messages, flat out drop the packet.
Signed-off-by: NFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

After commit 51b7b1c3 (KSZ8851-SNL: Add ethtool support for
EEPROM via eeprom_93cx6, 2011-11-21) this structure member is
unused. Delete it.
Signed-off-by: NStephen Boyd <stephen.boyd@linaro.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Daniel Borkmann says:

====================
Misc BPF improvements

This series adds various misc improvements to BPF, f.e. allowing
skb_load_bytes() helper to be used with filter/reuseport programs
to facilitate programming, test cases for program tag, etc. For
details, please see individual patches.
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>