We usually destroy the netdev's router interface (RIF) when the last IP
address is removed from it.

However, we shouldn't do that if it's enslaved to an L3 master device.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

When a router interface (RIF) is created due to a netdev being enslaved
to a VRF master, then it should be associated with the appropriate
virtual router (VR) and not the default one.

If netdev is a VRF slave, lookup the VR based on the VRF's table ID.
Otherwise default to the MAIN table.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Allow listeners of the subsequent CHANGEUPPER notification to retrieve
the VRF's table ID by calling l3mdev_fib_table() with the slave netdev.
Without this change, the netdev won't be considered an L3 slave and the
function would return 0.

This is consistent with other master device such as bridge and bond that
set the slave's private flag before linking. It also makes
do_vrf_{add,del}_slave() symmetric.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Acked-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

In commit c3852ef7 ("ipv4: fib: Replay events when registering FIB
notifier") we dumped the FIB tables and replayed the events to the
passed notification block.

However, we merely sent a RULE_ADD notification in case custom rules
were in use. As explained in previous patches, this approach won't work
anymore. Instead, we should notify the caller about all the FIB rules
and let it act accordingly.

Upon registration to the FIB notification chain, replay a RULE_ADD
notification for each programmed FIB rule, custom or not. The integrity
of the dump is ensured by the mechanism introduced in the above
mentioned commit.

Prevent regressions by making sure current listeners correctly sanitize
the notified rules.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Whenever a FIB rule is added or removed, a notification is sent in the
FIB notification chain. However, listeners don't have a way to tell
which rule was added or removed.

This is problematic as we would like to give listeners the ability to
decide which action to execute based on the notified rule. Specifically,
offloading drivers should be able to determine if they support the
reflection of the notified FIB rule and flush their LPM tables in case
they don't.

Do that by adding a notifier info to these notifications and embed the
common FIB rule struct in it.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Acked-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Currently, when non-default (custom) FIB rules are used, devices capable
of layer 3 offloading flush their tables and let the kernel do the
forwarding instead.

When these devices' drivers are loaded they register to the FIB
notification chain, which lets them know about the existence of any
custom FIB rules. This is done by sending a RULE_ADD notification based
on the value of 'net->ipv4.fib_has_custom_rules'.

This approach is problematic when VRF offload is taken into account, as
upon the creation of the first VRF netdev, a l3mdev rule is programmed
to direct skbs to the VRF's table.

Instead of merely reading the above value and sending a single RULE_ADD
notification, we should iterate over all the FIB rules and send a
detailed notification for each, thereby allowing offloading drivers to
sanitize the rules they don't support and potentially flush their
tables.

While l3mdev rules are uniquely marked, the default rules are not.
Therefore, when they are being notified they might invoke offloading
drivers to unnecessarily flush their tables.

Solve this by adding an helper to check if a FIB rule is a default rule.
Namely, its selector should match all packets and its action should
point to the local, main or default tables.

As noted by David Ahern, uniquely marking the default rules is
insufficient. When using VRFs, it's common to avoid false hits by moving
the rule for the local table to just before the main table:

Default configuration:
$ ip rule show
0:      from all lookup local
32766:  from all lookup main
32767:  from all lookup default

Common configuration with VRFs:
$ ip rule show
1000:   from all lookup [l3mdev-table]
32765:  from all lookup local
32766:  from all lookup main
32767:  from all lookup default
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Replace &tp->napi with napi and tp->netdev with netdev.
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Iyappan Subramanian says:

====================
drivers: net: xgene: Bug fixes and errata workarounds

This patch set addresses bug fixes and errata workarounds.
====================
Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: Quan Nguyen <qnguyen@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: Keyur Chudgar <kchudgar@apm.com>
Signed-off-by: Quan Nguyen <qnguyen@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

This patch implements workaround for errata 10GE_8 and ENET_11:
"HW reports length error for valid 64 byte frames with len <46 bytes"
by recovering them from error.
Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: Quan Nguyen <qnguyen@apm.com>
Signed-off-by: Toan Le <toanle@apm.com>
Tested-by: Fushen Chen <fchen@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

This patch implements workaround for errata 10GE_1:
10Gb Ethernet port FIFO threshold default values are incorrect.
Signed-off-by: Quan Nguyen <qnguyen@apm.com>
Signed-off-by: Toan Le <toanle@apm.com>
Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Tested-by: Fushen Chen <fchen@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

This patch fixes Rx checksum validation logic and
adds NETIF_F_RXCSUM flag.
Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

This patch fixes the wrong logical OR operation by changing it to
bit-wise OR operation.

Fixes: 3bb502f8 ("drivers: net: xgene: fix statistics counters race condition")
Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: Quan Nguyen <qnguyen@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

This patch fixes the hardware checksum settings by properly program
the classifier. Otherwise, packet may be received with checksum error
on X-Gene1 SoC.
Signed-off-by: Quan Nguyen <qnguyen@apm.com>
Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

This patches fixes a typo in the argument to xgene_enet_wr_mdio_csr().
Signed-off-by: Quan Nguyen <qnguyen@apm.com>
Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Vivien Didelot says:

====================
net: dsa: check out-of-range ageing time

The ageing time limits supported by DSA drivers vary depending on the
switch model. If a driver returns -ERANGE for out-of-range values, the
switchdev commit phase will fail with the following stacktrace:

    # brctl setageing br0 4
    [ 8530.082179] WARNING: CPU: 0 PID: 910 at net/switchdev/switchdev.c:291 switchdev_port_attr_set_now+0xbc/0xc0
    [ 8530.090679] br0: Commit of attribute (id=5) failed.
    [ 8530.094256] Modules linked in:
    [ 8530.096032] CPU: 0 PID: 910 Comm: kworker/0:4 Tainted: G        W       4.10.0 #361
    [ 8530.102412] Hardware name: Freescale Vybrid VF5xx/VF6xx (Device Tree)
    [ 8530.107571] Workqueue: events switchdev_deferred_process_work
    [ 8530.112039] Backtrace:
    [ 8530.113224] [<8010ca34>] (dump_backtrace) from [<8010cd3c>] (show_stack+0x20/0x24)
    [ 8530.119521]  r6:00000000 r5:80834da0 r4:80ca7e48 r3:8120ca3c
    [ 8530.123908] [<8010cd1c>] (show_stack) from [<8037ad40>] (dump_stack+0x24/0x28)
    [ 8530.129873] [<8037ad1c>] (dump_stack) from [<80118de4>] (__warn+0xf4/0x10c)
    [ 8530.135545] [<80118cf0>] (__warn) from [<80118e44>] (warn_slowpath_fmt+0x48/0x50)
    [ 8530.141760]  r9:00000000 r8:81252bec r7:80f19d90 r6:9dc3c000 r5:80ca7e7c r4:80834de8
    [ 8530.148235] [<80118e00>] (warn_slowpath_fmt) from [<80670b20>] (switchdev_port_attr_set_now+0xbc/0xc0)
    [ 8530.156240]  r3:9dc3c000 r2:80834de8
    [ 8530.158539]  r4:ffffffde
    [ 8530.159788] [<80670a64>] (switchdev_port_attr_set_now) from [<80670b44>] (switchdev_port_attr_set_deferred+0x20/0x6c)
    [ 8530.169118]  r7:806705a8 r6:9dc3c000 r5:80f19d90 r4:80f19d80
    [ 8530.173500] [<80670b24>] (switchdev_port_attr_set_deferred) from [<80670580>] (switchdev_deferred_process+0x50/0xe8)
    [ 8530.182742]  r6:80ca6000 r5:81252bec r4:80f19d80 r3:80670b24
    [ 8530.187115] [<80670530>] (switchdev_deferred_process) from [<80670930>] (switchdev_deferred_process_work+0x1c/0x24)
    [ 8530.196277]  r8:00000000 r7:9ffdc100 r6:8120ad6c r5:9ddefc00 r4:81252bf4 r3:9de343c0
    [ 8530.202756] [<80670914>] (switchdev_deferred_process_work) from [<8012f770>] (process_one_work+0x120/0x3b0)
    [ 8530.211231] [<8012f650>] (process_one_work) from [<8012fa70>] (worker_thread+0x70/0x534)
    [ 8530.218046]  r10:9ddefc00 r9:8120ad6c r8:80ca6038 r7:8120ad80 r6:81211f80 r5:9ddefc18
    [ 8530.224579]  r4:8120ad6c
    [ 8530.225830] [<8012fa00>] (worker_thread) from [<80135640>] (kthread+0x114/0x144)
    [ 8530.231955]  r10:9f4e9e94 r9:9de1fe58 r8:8012fa00 r7:9ddefc00 r6:9de1fdc0 r5:00000000
    [ 8530.238497]  r4:9de1fe40
    [ 8530.239750] [<8013552c>] (kthread) from [<80108cd8>] (ret_from_fork+0x14/0x3c)
    [ 8530.245679]  r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8013552c
    [ 8530.252234]  r4:9de1fdc0 r3:80ca6000
    [ 8530.254512] ---[ end trace 87475cc71b80ef73 ]---
    [ 8530.257852] br0: failed (err=-34) to set attribute (id=5)

This patchset fixes this by adding ageing_time_min and ageing_time_max
fields to the dsa_switch structure, which can optionally be set by a DSA
driver.

If provided, the DSA core will check for out-of-range values in the
SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME prepare phase and return -ERANGE
accordingly.

Finally set these limits in the mv88e6xxx driver.
====================
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

Now that DSA has ageing time limits, specify them when registering a
switch so that out-of-range values are handled correctly by the core.
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reported-by: Jason Cobham <jcobham@questertangent.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

If a DSA switch driver cannot program an ageing time value due to it
being out-of-range, switchdev will raise a stack trace before failing.

To fix this, add ageing_time_min and ageing_time_max members to the
dsa_switch in order for the switch drivers to optionally specify their
supported ageing time limits.

The DSA core will now check for provided ageing time limits and return
-ERANGE from the switchdev prepare phase if the value is out-of-range.
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

The ageing time is defined as unsigned int, so make
dsa_fastest_ageing_time return an unsigned int instead of int.
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Alexander Duyck says:

====================
Add support for passing more information in mqprio offload

This patch series lays the groundwork for future work to allow us to make
full use of the mqprio options when offloading them to hardware.

Currently when we specify the hardware offload for mqprio the queue
configuration is completely ignored and the hardware is only notified of
the total number of traffic classes.  The problem is this leads to multiple
issues, one specific issue being you can pass the queue configuration you
want and it is totally ignored by the hardware.

What I am planning to do is add support for "hw" values in the
configuration greater than 1.  So for example we might have one mode of
mqprio offload that uses 1 and only offloads the TC counts like we
currently do.  Then we might look at adding an option 2 which would factor
in the TCs and the queue count information. This way we can select between
the type of offload we actually want and existing drivers that don't
support this can just fall back to their legacy configuration.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

The configurable priority to traffic class mapping and the user specified
queue ranges are used to configure the traffic class, overriding the
hardware defaults when the 'hw' option is set to 0. However, when the 'hw'
option is non-zero, the hardware QOS defaults are used.

This patch makes it so that we can pass the data the user provided to
ndo_setup_tc. This allows us to pull in the queue configuration if the
user requested it as well as any additional hardware offload type
requested by using a value other than 1 for the hw value.

Finally it also provides a means for the device driver to return the level
supported for the offload type via the qopt->hw value. Previously we were
just always assuming the value to be 1, in the future values beyond just 1
may be supported.
Signed-off-by: Amritha Nambiar <amritha.nambiar@intel.com>
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

This patch is meant to allow for support of multiple hardware offload type
for a single device. There is currently no bounds checking for the hw
member of the mqprio_qopt structure.  This results in us being able to pass
values from 1 to 255 with all being treated the same.  On retreiving the
value it is returned as 1 for anything 1 or greater being set.

With this change we are currently adding limited bounds checking by
defining an enum and using those values to limit the reported hardware
offloads.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

At the end of the timeout loop, retries will always be zero so
the check for zero is redundant so remove it.  Also replace
printk with pr_err as recommended by checkpatch.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Joao Pinto says:

====================
net: stmmac: prepare dma operations for multiple queues

As agreed with David Miller, this patch-set is the second of 3 to enable
multiple queues in stmmac.

This second one concentrates on dma operations adding functionalities as:
a) DMA Operation Mode configuration per channel and done in the multiple
queues configuration function
b) DMA IRQ enable and Disable by channel
c) DMA start and stop by channel
d) RX and TX ring length configuration by channel
e) RX and TX set tail pointer by channel
f) DMA Channel initialization broke into Channel comon, RX and TX
initialization
g) TSO being configured for all available channels
h) DMA interrupt treatment by channel
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

This patch prepares the main ISR for multiple queues.
Signed-off-by: Joao Pinto <jpinto@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

This patch configures TSO for all available tx queues.
Signed-off-by: Joao Pinto <jpinto@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

This patch prepares the DMA initialization process for multiple queues.
Signed-off-by: Joao Pinto <jpinto@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

This patch prepares RX and TX set tail functions for multiple queues.
Signed-off-by: Joao Pinto <jpinto@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

This patch prepares tx and rx ring length configuration for multiple queues.
Signed-off-by: Joao Pinto <jpinto@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

This patch adds rx watchdog configuration for all queues.
Signed-off-by: Joao Pinto <jpinto@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

This patch prepares DMA interrupts treatment for multiple queues.
Signed-off-by: Joao Pinto <jpinto@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

This patch prepares stmmac_err for multiple queues.
Signed-off-by: Joao Pinto <jpinto@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

This patch prepares the RX/TX DMA stop/start process for multiple queues.
Signed-off-by: Joao Pinto <jpinto@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

This patch prepares the DMA IRQ enable/disable process for multiple queues.
Signed-off-by: Joao Pinto <jpinto@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

This patch prepares DMA Operation Mode configuration for multiple queues.
The work consisted on breaking the DMA operation Mode configuration function
into RX and TX scope and adapting its mechanism in stmmac_main.
Signed-off-by: Joao Pinto <jpinto@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Jeff Kirsher says:

====================
40GbE Intel Wired LAN Driver Updates 2017-03-15

This series contains updates to i40e and i40evf only.

Aaron fixes an issue on x710 devices where simultaneous read accesses
were interfering with each other, so make sure all devices acquire the
NVM lock before reads on all devices.

Shannon adds Wake On LAN support feature for x722 devices and cleaned
up the opcodes so that they are in numerical order.

Mitch adds a client interface to the VF driver, in preparation for the
upcoming RDMA-capable hardware (and client driver).  Cleaned up the
client interface in the PF driver, since it was originally over
engineered to handle multiple clients on multiple netdevs, but that
did not happen and now there will be one client per driver, so apply
the "KISS" (Keep It Simple & Stupid) to the i40e client interface.
Bumped the number of MAC filters an untrusted VF can create.

Jake fixes an issue where a recent refactor of queue pairs accidentally
added all remaining vecotrs to the num_lan_msix which can adversely
affect performance.

Lihong fixes an ethtool issue with x722 devices where "-e" will error
out since its EEPROM has a scope limit at offset 0x5B9FFF, so set the
EEPROM length to the scope limit.  Also fixed an issue where RSS
offloading only worked on PF0.

Filip cleans up and clarifies code comment so there is no confusion
about MAC/VLAN filter initialization routine.

Alex adds support for DMA_ATTR_SKIP_CPU_SYNC and DMA_ATTR_WEAK_ORDERING,
which improves performance on architectures that implement either one.

Harshitha cleans up confusion on flags disabled due to hardware limitation
versus featured disabled by the user, so rename auto_disable_flags to
hw_disabled_flags to avoid the confusion.

v2: Merged patch #1 and #4 in first version to make patch #3 in this
    series based on feedback from David Miller.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

Conflicts:
	drivers/net/ethernet/broadcom/genet/bcmgenet.c
	net/core/sock.c

Conflicts were overlapping changes in bcmgenet and the
lockdep handling of sockets.
Signed-off-by: David S. Miller <davem@davemloft.net>

Pull SCSI fixes from James Bottomley:
 "This is a rather large set of fixes. The bulk are for lpfc correcting
  a lot of issues in the new NVME driver code which just went in in the
  merge window.

  The others are:

   - fix a hang in the vmware paravirt driver caused by incorrect
     handling of the new MSI vector allocation

   - long standing bug in storvsc, which recent block changes turned
     from being a harmless annoyance into a hang

   - yet more fallout (in mpt3sas) from the changes to device blocking

  The remainder are small fixes and updates"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (34 commits)
  scsi: lpfc: Add shutdown method for kexec
  scsi: storvsc: Workaround for virtual DVD SCSI version
  scsi: lpfc: revise version number to 11.2.0.10
  scsi: lpfc: code cleanups in NVME initiator discovery
  scsi: lpfc: code cleanups in NVME initiator base
  scsi: lpfc: correct rdp diag portnames
  scsi: lpfc: remove dead sli3 nvme code
  scsi: lpfc: correct double print
  scsi: lpfc: Rename LPFC_MAX_EQ_DELAY to LPFC_MAX_EQ_DELAY_EQID_CNT
  scsi: lpfc: Rework lpfc Kconfig for NVME options
  scsi: lpfc: add transport eh_timed_out reference
  scsi: lpfc: Fix eh_deadline setting for sli3 adapters.
  scsi: lpfc: add NVME exchange aborts
  scsi: lpfc: Fix nvme allocation bug on failed nvme_fc_register_localport
  scsi: lpfc: Fix IO submission if WQ is full
  scsi: lpfc: Fix NVME CMD IU byte swapped word 1 problem
  scsi: lpfc: Fix RCTL value on NVME LS request and response
  scsi: lpfc: Fix crash during Hardware error recovery on SLI3 adapters
  scsi: lpfc: fix missing spin_unlock on sql_list_lock
  scsi: lpfc: don't dereference dma_buf->iocbq before null check
  ...

Pull gfs2 fix from Bob Peterson:
 "This is an emergency patch for 4.11-rc3

  The GFS2 developers uncovered a really nasty problem that can lead to
  random corruption and kernel panic, much like the last one. Andreas
  Gruenbacher wrote a simple one-line patch to fix the problem."

* tag 'gfs2-4.11-rc3.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
  gfs2: Avoid alignment hole in struct lm_lockname

Pull crypto fixes from Herbert Xu:

 - self-test failure of crc32c on powerpc

 - regressions of ecb(aes) when used with xts/lrw in s5p-sss

 - a number of bugs in the omap RNG driver

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: s5p-sss - Fix spinlock recursion on LRW(AES)
  hwrng: omap - Do not access INTMASK_REG on EIP76
  hwrng: omap - use devm_clk_get() instead of of_clk_get()
  hwrng: omap - write registers after enabling the clock
  crypto: s5p-sss - Fix completing crypto request in IRQ handler
  crypto: powerpc - Fix initialisation of crc32c context