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5 years agonfp: flower: remove unused index from nfp_fl_pedit()
Pablo Neira Ayuso [Fri, 8 Feb 2019 16:41:13 +0000 (17:41 +0100)]
nfp: flower: remove unused index from nfp_fl_pedit()

Static checker warning complains on uninitialized variable:

        drivers/net/ethernet/netronome/nfp/flower/action.c:618 nfp_fl_pedit()
        error: uninitialized symbol 'idx'.

Which is actually never used from the functions that take it as
parameter. Remove it.

Fixes: 738678817573 ("drivers: net: use flow action infrastructure")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agosfc: add bundle partition definitions to mtd
Paul Fox [Fri, 8 Feb 2019 16:25:37 +0000 (16:25 +0000)]
sfc: add bundle partition definitions to mtd

Signed-off-by: Paul Fox <pfox@solarflare.com>
Signed-off-by: Bert Kenward <bkenward@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoipvlan: decouple l3s mode dependencies from other modes
Daniel Borkmann [Fri, 8 Feb 2019 12:55:31 +0000 (13:55 +0100)]
ipvlan: decouple l3s mode dependencies from other modes

Right now ipvlan has a hard dependency on CONFIG_NETFILTER and
otherwise it cannot be built. However, the only ipvlan operation
mode that actually depends on netfilter is l3s, everything else
is independent of it. Break this hard dependency such that users
are able to use ipvlan l3 mode on systems where netfilter is not
compiled in.

Therefore, this adds a hidden CONFIG_IPVLAN_L3S bool which is
defaulting to y when CONFIG_NETFILTER is set in order to retain
existing behavior for l3s. All l3s related code is refactored
into ipvlan_l3s.c that is compiled in when enabled.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Cc: Mahesh Bandewar <maheshb@google.com>
Cc: Florian Westphal <fw@strlen.de>
Cc: Martynas Pumputis <m@lambda.lt>
Acked-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: phy: let genphy_c45_read_link manage the devices to check
Heiner Kallweit [Thu, 7 Feb 2019 20:41:46 +0000 (21:41 +0100)]
net: phy: let genphy_c45_read_link manage the devices to check

Let genphy_c45_read_link manage the devices to check, this removes
overhead from callers. Add C22EXT to the list of excluded devices
because it doesn't implement the status register. According to the
802.3 clause 45 spec registers 29.0 - 29.4 are reserved.

At the moment we have very few clause 45 PHY drivers, so we are
lacking experience whether other drivers will have to exclude further
devices, or may need to check PHY XS. If we should figure out that
list of devices to check needs to be configurable, I think best will
be to add a device list member to struct phy_driver.

v2:
- adjusted commit message
- exclude also device C22EXT from link checking

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: fixed-phy: Add fixed_phy_register_with_gpiod() API
Moritz Fischer [Thu, 7 Feb 2019 17:52:10 +0000 (09:52 -0800)]
net: fixed-phy: Add fixed_phy_register_with_gpiod() API

Add fixed_phy_register_with_gpiod() API. It lets users create a
fixed_phy instance that uses a GPIO descriptor which was obtained
externally e.g. through platform data.
This enables platform devices (non-DT based) to use GPIOs for link
status.

Signed-off-by: Moritz Fischer <mdf@kernel.org>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoMerge branch 'Add-comphy-support-for-Armada-38x'
David S. Miller [Fri, 8 Feb 2019 02:10:26 +0000 (18:10 -0800)]
Merge branch 'Add-comphy-support-for-Armada-38x'

Russell King says:

====================
Add comphy support for Armada 38x

This series adds support for the comphy for Armada 38x, which allows
these SoCs to use 2500BASE-X mode with appropriate SFP modules.

Tested on SolidRun Clearfog after updating for the 5.0 merge window
changes.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoARM: dts: clearfog: add comphy settings for Ethernet interfaces
Russell King [Thu, 7 Feb 2019 16:19:31 +0000 (16:19 +0000)]
ARM: dts: clearfog: add comphy settings for Ethernet interfaces

Add the comphy settings for the Ethernet interfaces.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: marvell: neta: add comphy support
Russell King [Thu, 7 Feb 2019 16:19:26 +0000 (16:19 +0000)]
net: marvell: neta: add comphy support

Add support for the common phy binding, so that we can reconfigure the
comphy according to the desired ethernet speed.  This will allow us to
support 1000base-X and 2500base-X SFPs dynamically on SolidRun Clearfog.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agodt-bindings: net: mvneta: add phys property
Russell King [Thu, 7 Feb 2019 16:19:21 +0000 (16:19 +0000)]
dt-bindings: net: mvneta: add phys property

Add an optional phys property to the mvneta binding documentation for
the common phy.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoARM: dts: add description for Armada 38x common phy
Russell King [Thu, 7 Feb 2019 16:19:15 +0000 (16:19 +0000)]
ARM: dts: add description for Armada 38x common phy

Add the DT description for the Armada 38x common phy.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agophy: armada38x: add common phy support
Russell King [Thu, 7 Feb 2019 16:19:10 +0000 (16:19 +0000)]
phy: armada38x: add common phy support

Add support for the Armada 38x common phy to allow us to change the
speed of the Ethernet serdes lane.  This driver only supports
manipulation of the speed, it does not support configuration of the
common phy.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agodt-bindings: phy: Armada 38x common phy bindings
Russell King [Thu, 7 Feb 2019 16:19:05 +0000 (16:19 +0000)]
dt-bindings: phy: Armada 38x common phy bindings

Add the Marvell Armada 38x common phy bindings.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoMerge branch 'smc-next'
David S. Miller [Fri, 8 Feb 2019 02:06:19 +0000 (18:06 -0800)]
Merge branch 'smc-next'

Ursula Braun says:

====================
net/smc: patches 2019-02-07

here are patches for SMC:
* patches 1, 3, and 6 are cleanups without functional change
* patch 2 postpones closing of internal clcsock
* patches 4 and 5 improve link group creation locking
* patch 7 restores AF_SMC as diag_family field
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet/smc: original socket family in inet_sock_diag
Karsten Graul [Thu, 7 Feb 2019 14:56:20 +0000 (15:56 +0100)]
net/smc: original socket family in inet_sock_diag

Commit ed75986f4aae ("net/smc: ipv6 support for smc_diag.c") changed the
value of the diag_family field. The idea was to indicate the family of
the IP address in the inet_diag_sockid field. But the change makes it
impossible to distinguish an inet_sock_diag response message from SMC
sock_diag response. This patch restores the original behaviour and sends
AF_SMC as value of the diag_family field.

Fixes: ed75986f4aae ("net/smc: ipv6 support for smc_diag.c")
Reported-by: Eugene Syromiatnikov <esyr@redhat.com>
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet/smc: move code to clear the conn->lgr field
Karsten Graul [Thu, 7 Feb 2019 14:56:19 +0000 (15:56 +0100)]
net/smc: move code to clear the conn->lgr field

The lgr field of an smc_connection is set in smc_conn_create() and
should be cleared in smc_conn_free() for consistency reasons, so move
the responsible code.

Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet/smc: use client and server LGR pending locks for SMC-R
Hans Wippel [Thu, 7 Feb 2019 14:56:18 +0000 (15:56 +0100)]
net/smc: use client and server LGR pending locks for SMC-R

If SMC client and server connections are both established at the same
time, smc_connect_rdma() cannot send a CLC confirm message while
smc_listen_work() is waiting for one due to lock contention. This can
result in timeouts in smc_clc_wait_msg() and failed SMC connections.

In case of SMC-R, there are two types of LGRs (client and server LGRs)
which can be protected by separate locks. So, this patch splits the LGR
pending lock into two separate locks for client and server to avoid the
locking issue for SMC-R.

Signed-off-by: Hans Wippel <hwippel@linux.ibm.com>
Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet/smc: unlock LGR pending lock earlier for SMC-D
Hans Wippel [Thu, 7 Feb 2019 14:56:17 +0000 (15:56 +0100)]
net/smc: unlock LGR pending lock earlier for SMC-D

If SMC client and server connections are both established at the same
time, smc_connect_ism() cannot send a CLC confirm message while
smc_listen_work() is waiting for one due to lock contention. This can
result in timeouts in smc_clc_wait_msg() and failed SMC connections.

In case of SMC-D, the LGR pending lock is not needed while
smc_listen_work() is waiting for the CLC confirm message. So, this patch
releases the lock earlier for SMC-D to avoid the locking issue.

Signed-off-by: Hans Wippel <hwippel@linux.ibm.com>
Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet/smc: use smc_curs_copy() for SMC-D
Ursula Braun [Thu, 7 Feb 2019 14:56:16 +0000 (15:56 +0100)]
net/smc: use smc_curs_copy() for SMC-D

SMC already provides a wrapper for atomic64 calls to be
architecture independent. Use this wrapper for SMC-D as well.

Reported-by: Jens Remus <jremus@linux.ibm.com>
Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet/smc: postpone release of clcsock
Ursula Braun [Thu, 7 Feb 2019 14:56:15 +0000 (15:56 +0100)]
net/smc: postpone release of clcsock

According to RFC7609 (http://www.rfc-editor.org/info/rfc7609)
first the SMC-R connection is shut down and then the normal TCP
connection FIN processing drives cleanup of the internal TCP connection.
The unconditional release of the clcsock during active socket closing
has to be postponed if the peer has not yet signalled socket closing.

Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agos390/net: move pnet constants
Ursula Braun [Thu, 7 Feb 2019 14:56:14 +0000 (15:56 +0100)]
s390/net: move pnet constants

There is no need to define these PNETID related constants in
the pnet.h file, since they are just used locally within pnet.c.
Just code cleanup, no functional change.

Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: vxlan: Free a leaked vetoed multicast rdst
Petr Machata [Thu, 7 Feb 2019 12:18:02 +0000 (12:18 +0000)]
net: vxlan: Free a leaked vetoed multicast rdst

When an rdst is rejected by a driver, the current code removes it from
the remote list, but neglects to free it. This is triggered by
tools/testing/selftests/drivers/net/mlxsw/vxlan_fdb_veto.sh and shows as
the following kmemleak trace:

unreferenced object 0xffff88817fa3d888 (size 96):
  comm "softirq", pid 0, jiffies 4372702718 (age 165.252s)
  hex dump (first 32 bytes):
    02 00 00 00 c6 33 64 03 80 f5 a2 61 81 88 ff ff  .....3d....a....
    06 df 71 ae ff ff ff ff 0c 00 00 00 04 d2 6a 6b  ..q...........jk
  backtrace:
    [<00000000296b27ac>] kmem_cache_alloc_trace+0x1ae/0x370
    [<0000000075c86dc6>] vxlan_fdb_append.part.12+0x62/0x3b0 [vxlan]
    [<00000000e0414b63>] vxlan_fdb_update+0xc61/0x1020 [vxlan]
    [<00000000f330c4bd>] vxlan_fdb_add+0x2e8/0x3d0 [vxlan]
    [<0000000008f81c2c>] rtnl_fdb_add+0x4c2/0xa10
    [<00000000bdc4b270>] rtnetlink_rcv_msg+0x6dd/0x970
    [<000000006701f2ce>] netlink_rcv_skb+0x290/0x410
    [<00000000c08a5487>] rtnetlink_rcv+0x15/0x20
    [<00000000d5f54b1e>] netlink_unicast+0x43f/0x5e0
    [<00000000db4336bb>] netlink_sendmsg+0x789/0xcd0
    [<00000000e1ee26b6>] sock_sendmsg+0xba/0x100
    [<00000000ba409802>] ___sys_sendmsg+0x631/0x960
    [<000000003c332113>] __sys_sendmsg+0xea/0x180
    [<00000000f4139144>] __x64_sys_sendmsg+0x78/0xb0
    [<000000006d1ddc59>] do_syscall_64+0x94/0x410
    [<00000000c8defa9a>] entry_SYSCALL_64_after_hwframe+0x49/0xbe

Move vxlan_dst_free() up and schedule a call thereof to plug this leak.

Fixes: 61f46fe8c646 ("vxlan: Allow vetoing of FDB notifications")
Signed-off-by: Petr Machata <petrm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoMerge branch 'devlink-health'
David S. Miller [Thu, 7 Feb 2019 18:34:39 +0000 (10:34 -0800)]
Merge branch 'devlink-health'

Eran Ben Elisha says:

====================
Devlink health reporting and recovery system

The health mechanism is targeted for Real Time Alerting, in order to know when
something bad had happened to a PCI device
- Provide alert debug information
- Self healing
- If problem needs vendor support, provide a way to gather all needed debugging
  information.

The main idea is to unify and centralize driver health reports in the
generic devlink instance and allow the user to set different
attributes of the health reporting and recovery procedures.

The devlink health reporter:
Device driver creates a "health reporter" per each error/health type.
Error/Health type can be a known/generic (eg pci error, fw error, rx/tx error)
or unknown (driver specific).
For each registered health reporter a driver can issue error/health reports
asynchronously. All health reports handling is done by devlink.
Device driver can provide specific callbacks for each "health reporter", e.g.
 - Recovery procedures
 - Diagnostics and object dump procedures
 - OOB initial attributes
Different parts of the driver can register different types of health reporters
with different handlers.

Once an error is reported, devlink health will do the following actions:
  * A log is being send to the kernel trace events buffer
  * Health status and statistics are being updated for the reporter instance
  * Object dump is being taken and saved at the reporter instance (as long as
    there is no other dump which is already stored)
  * Auto recovery attempt is being done. Depends on:
    - Auto-recovery configuration
    - Grace period vs. time passed since last recover

The user interface:
User can access/change each reporter attributes and driver specific callbacks
via devlink, e.g per error type (per health reporter)
 - Configure reporter's generic attributes (like: Disable/enable auto recovery)
 - Invoke recovery procedure
 - Run diagnostics
 - Object dump

The devlink health interface (via netlink):
DEVLINK_CMD_HEALTH_REPORTER_GET
  Retrieves status and configuration info per DEV and reporter.
DEVLINK_CMD_HEALTH_REPORTER_SET
  Allows reporter-related configuration setting.
DEVLINK_CMD_HEALTH_REPORTER_RECOVER
  Triggers a reporter's recovery procedure.
DEVLINK_CMD_HEALTH_REPORTER_DIAGNOSE
  Retrieves diagnostics data from a reporter on a device.
DEVLINK_CMD_HEALTH_REPORTER_DUMP_GET
  Retrieves the last stored dump. Devlink health
  saves a single dump. If an dump is not already stored by the devlink
  for this reporter, devlink generates a new dump.
  dump output is defined by the reporter.
DEVLINK_CMD_HEALTH_REPORTER_DUMP_CLEAR
  Clears the last saved dump file for the specified reporter.

                                               netlink
                                      +--------------------------+
                                      |                          |
                                      |            +             |
                                      |            |             |
                                      +--------------------------+
                                                   |request for ops
                                                   |(diagnose,
 mlx5_core                             devlink     |recover,
                                                   |dump)
+--------+                            +--------------------------+
|        |                            |    reporter|             |
|        |                            |  +---------v----------+  |
|        |   ops execution            |  |                    |  |
|     <----------------------------------+                    |  |
|        |                            |  |                    |  |
|        |                            |  + ^------------------+  |
|        |                            |    | request for ops     |
|        |                            |    | (recover, dump)     |
|        |                            |    |                     |
|        |                            |  +-+------------------+  |
|        |     health report          |  | health handler     |  |
|        +------------------------------->                    |  |
|        |                            |  +--------------------+  |
|        |     health reporter create |                          |
|        +---------------------------->                          |
+--------+                            +--------------------------+

In this patchset, mlx5e TX reporter is implemented.

Cmdline format:
    devlink health show [DEV reporter REPORTE_NAME]
    devlink health recover DEV reporter REPORTER_NAME
    devlink health diagnose DEV reporter REPORTER_NAME
    devlink health dump show DEV reporter REPORTER_NAME
    devlink health dump clear DEV reporter REPORTER_NAME
    devlink health set DEV reporter REPORTER_NAME NAME VALUE

Cmdline examples:
$devlink health show
pci/0000:00:09.0:
  name tx
    state healthy #err 1 #recover 0 last_dump_ts N/A
    parameters:
      grace_period 500 auto_recover false

$devlink health diagnose pci/0000:00:09.0 reporter tx -j -p
{
    "SQs": [ {
            "sqn": 138,
            "HW state": 1,
            "stopped": false
        },{
            "sqn": 142,
            "HW state": 1,
            "stopped": false
        } ]
}

$devlink health diagnose pci/0000:00:09.0 reporter tx
SQs:
  sqn: 138 HW state: 1 stopped: false
  sqn: 142 HW state: 1 stopped: false

$devlink health recover pci/0000:00:09 reporter tx

$devlink health set pci/0000:00:09.0 reporter tx grace_period 3500

$devlink health set pci/0000:00:09.0 reporter tx auto_recover false

Changelog:
v4:
- Rebase on latest net-next
- Remove trace_devlink_health signature exposure in case CONFIG_NET_DEVLINK is
  not defined as it shall only be used from devlink.

v3:
- Redesign of devlink <-> driver fmsg API
- Various bug fixes

v2:
- Remove FW* reporters to decrease the amount of patches in the patchset
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agodevlink: Add Documentation/networking/devlink-health.txt
Aya Levin [Thu, 7 Feb 2019 09:36:42 +0000 (11:36 +0200)]
devlink: Add Documentation/networking/devlink-health.txt

This patch adds a new file to add information about devlink health
mechanism.

Signed-off-by: Aya Levin <ayal@mellanox.com>
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet/mlx5e: Add tx timeout support for mlx5e tx reporter
Eran Ben Elisha [Thu, 7 Feb 2019 09:36:41 +0000 (11:36 +0200)]
net/mlx5e: Add tx timeout support for mlx5e tx reporter

With this patch, ndo_tx_timeout callback will be redirected to the tx
reporter in order to detect a tx timeout error and report it to the
devlink health. (The watchdog detects tx timeouts, but the driver verify
the issue still exists before launching any recover method).

In addition, recover from tx timeout in case of lost interrupt was added
to the tx reporter recover method. The tx timeout recover from lost
interrupt is not a new feature in the driver, this patch re-organize the
functionality and move it to the tx reporter recovery flow.

tx timeout example:
(with auto_recover set to false, if set to true, the manual recover and
diagnose sections are irrelevant)

$cat /sys/kernel/debug/tracing/trace
...
devlink_health_report: bus_name=pci dev_name=0000:00:09.0
driver_name=mlx5_core reporter_name=tx: TX timeout on queue: 0, SQ: 0x8a,
CQ: 0x35, SQ Cons: 0x2 SQ Prod: 0x2, usecs since last trans: 14912000

$devlink health show
pci/0000:00:09.0:
  name tx
    state healthy #err 1 #recover 0 last_dump_ts N/A
    parameters:
      grace_period 500 auto_recover false

$devlink health diagnose pci/0000:00:09.0 reporter tx -j -p
{
    "SQs": [ {
            "sqn": 138,
            "HW state": 1,
            "stopped": true
        },{
            "sqn": 142,
            "HW state": 1,
            "stopped": false
        } ]
}

$devlink health diagnose pci/0000:00:09.0 reporter tx
SQs:
  sqn: 138 HW state: 1 stopped: true
  sqn: 142 HW state: 1 stopped: false

$devlink health recover pci/0000:00:09 reporter tx
$devlink health show
pci/0000:00:09.0:
  name tx
    state healthy #err 1 #recover 1 last_dump_ts N/A
    parameters:
      grace_period 500 auto_recover false

Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Reviewed-by: Moshe Shemesh <moshe@mellanox.com>
Acked-by: Saeed Mahameed <saeedm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet/mlx5e: Add tx reporter support
Eran Ben Elisha [Thu, 7 Feb 2019 09:36:40 +0000 (11:36 +0200)]
net/mlx5e: Add tx reporter support

Add mlx5e tx reporter to devlink health reporters. This reporter will be
responsible for diagnosing, reporting and recovering of tx errors.
This patch declares the TX reporter operations and creates it using the
devlink health API. Currently, this reporter supports reporting and
recovering from send error CQE only. In addition, it adds diagnose
information for the open SQs.

For a local SQ recover (due to driver error report), in case of SQ recover
failure, the recover operation will be considered as a failure.
For a full tx recover, an attempt to close and open the channels will be
done. If this one passed successfully, it will be considered as a
successful recover.

The SQ recover from error CQE flow is not a new feature in the driver,
this patch re-organize the functions and adapt them for the devlink
health API. For this purpose, move code from en_main.c to a new file
named reporter_tx.c.

Diagnose output:
$devlink health diagnose pci/0000:00:09.0 reporter tx -j -p
{
    "SQs": [ {
            "sqn": 138,
            "HW state": 1,
            "stopped": false
        },{
            "sqn": 142,
            "HW state": 1,
            "stopped": false
        } ]
}

$devlink health diagnose pci/0000:00:09.0 reporter tx
SQs:
  sqn: 138 HW state: 1 stopped: false
  sqn: 142 HW state: 1 stopped: false

Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Reviewed-by: Moshe Shemesh <moshe@mellanox.com>
Acked-by: Saeed Mahameed <saeedm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agodevlink: Add health dump {get,clear} commands
Eran Ben Elisha [Thu, 7 Feb 2019 09:36:39 +0000 (11:36 +0200)]
devlink: Add health dump {get,clear} commands

Add devlink health dump commands, in order to run an dump operation
over a specific reporter.

The supported operations are dump_get in order to get last saved
dump (if not exist, dump now) and dump_clear to clear last saved
dump.

It is expected from driver's callback for diagnose command to fill it
via the devlink fmsg API. Devlink will parse it and convert it to
netlink nla API in order to pass it to the user.

Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Reviewed-by: Moshe Shemesh <moshe@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agodevlink: Add health diagnose command
Eran Ben Elisha [Thu, 7 Feb 2019 09:36:38 +0000 (11:36 +0200)]
devlink: Add health diagnose command

Add devlink health diagnose command, in order to run a diagnose
operation over a specific reporter.

It is expected from driver's callback for diagnose command to fill it
via the devlink fmsg API. Devlink will parse it and convert it to
netlink nla API in order to pass it to the user.

Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Reviewed-by: Moshe Shemesh <moshe@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agodevlink: Add health recover command
Eran Ben Elisha [Thu, 7 Feb 2019 09:36:37 +0000 (11:36 +0200)]
devlink: Add health recover command

Add devlink health recover command to the uapi, in order to allow the user
to execute a recover operation over a specific reporter.

Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Reviewed-by: Moshe Shemesh <moshe@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agodevlink: Add health set command
Eran Ben Elisha [Thu, 7 Feb 2019 09:36:36 +0000 (11:36 +0200)]
devlink: Add health set command

Add devlink health set command, in order to set configuration parameters
for a specific reporter.
Supported parameters are:
- graceful_period: Time interval between auto recoveries (in msec)
- auto_recover: Determines if the devlink shall execute recover upon
receiving error for the reporter

Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Reviewed-by: Moshe Shemesh <moshe@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agodevlink: Add health get command
Eran Ben Elisha [Thu, 7 Feb 2019 09:36:35 +0000 (11:36 +0200)]
devlink: Add health get command

Add devlink health get command to provide reporter/s data for user space.
Add the ability to get data per reporter or dump data from all available
reporters.

Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Reviewed-by: Moshe Shemesh <moshe@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agodevlink: Add health report functionality
Eran Ben Elisha [Thu, 7 Feb 2019 09:36:34 +0000 (11:36 +0200)]
devlink: Add health report functionality

Upon error discover, every driver can report it to the devlink health
mechanism via devlink_health_report function, using the appropriate
reporter registered to it. Driver can pass error specific context which
will be delivered to it as part of the dump / recovery callbacks.

Once an error is reported, devlink health will do the following actions:
* A log is being send to the kernel trace events buffer
* Health status and statistics are being updated for the reporter instance
* Object dump is being taken and stored at the reporter instance (as long
  as there is no other dump which is already stored)
* Auto recovery attempt is being done. Depends on:
  - Auto Recovery configuration
  - Grace period vs. Time since last recover

Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Reviewed-by: Moshe Shemesh <moshe@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agodevlink: Add health reporter create/destroy functionality
Eran Ben Elisha [Thu, 7 Feb 2019 09:36:33 +0000 (11:36 +0200)]
devlink: Add health reporter create/destroy functionality

Devlink health reporter is an instance for reporting, diagnosing and
recovering from run time errors discovered by the reporters.
Define it's data structure and supported operations.
In addition, expose devlink API to create and destroy a reporter.
Each devlink instance will hold it's own reporters list.

As part of the allocation, driver shall provide a set of callbacks which
will be used by devlink in order to handle health reports and user
commands related to this reporter. In addition, driver is entitled to
provide some priv pointer, which can be fetched from the reporter by
devlink_health_reporter_priv function.

For each reporter, devlink will hold a metadata of statistics,
dump msg and status.

For passing dumps and diagnose data to the user-space, it will use devlink
fmsg API.

Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Reviewed-by: Moshe Shemesh <moshe@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agodevlink: Add devlink formatted message (fmsg) API
Eran Ben Elisha [Thu, 7 Feb 2019 09:36:32 +0000 (11:36 +0200)]
devlink: Add devlink formatted message (fmsg) API

Devlink fmsg is a mechanism to pass descriptors between drivers and
devlink, in json-like format. The API allows the driver to add nested
attributes such as object, object pair and value array, in addition to
attributes such as name and value.

Driver can use this API to fill the fmsg context in a format which will be
translated by the devlink to the netlink message later.
There is no memory allocation in advance (other than the initial list
head), and it dynamically allocates messages descriptors and add them to
the list on the fly.

When it needs to send the data using SKBs to the netlink layer, it
fragments the data between different SKBs. In order to do this
fragmentation, it uses virtual nests attributes, to avoid actual
nesting use which cannot be divided between different SKBs.

Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Reviewed-by: Moshe Shemesh <moshe@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: phy: fixed_phy: Fix fixed_phy not checking GPIO
Moritz Fischer [Thu, 7 Feb 2019 05:45:29 +0000 (21:45 -0800)]
net: phy: fixed_phy: Fix fixed_phy not checking GPIO

Fix fixed_phy not checking GPIO if no link_update callback
is registered.

In the original version all users registered a link_update
callback so the issue was masked.

Fixes: a5597008dbc2 ("phy: fixed_phy: Add gpio to determine link up/down.")
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: emac: remove IBM_EMAC_RX_SKB_HEADROOM
Christian Lamparter [Tue, 5 Feb 2019 21:20:09 +0000 (22:20 +0100)]
net: emac: remove IBM_EMAC_RX_SKB_HEADROOM

The EMAC driver had a custom IBM_EMAC_RX_SKB_HEADROOM
Kconfig option that reserved additional skb headroom for RX.
This patch removes the option and migrates the code
to use napi_alloc_skb() and netdev_alloc_skb_ip_align()
in its place.

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: phy: improve genphy_c45_read_link
Heiner Kallweit [Tue, 5 Feb 2019 19:41:37 +0000 (20:41 +0100)]
net: phy: improve genphy_c45_read_link

Let's make genphy_c45_read_link behave the same as genphy_update_link
and set phydev->link in the function directly. This allows to simplify
the callers. In addition don't check further devices once we detect
that at least one device reports link as down.

v2:
- remove an unused variable

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: stmmac: fix ptp timestamping on Rx on gmac4
Ilias Apalodimas [Tue, 5 Feb 2019 12:15:20 +0000 (14:15 +0200)]
net: stmmac: fix ptp timestamping on Rx on gmac4

The current driver only enables Pdelay_Req and Pdelay_Resp when
HWTSTAMP_FILTER_PTP_V2_EVENT, HWTSTAMP_FILTER_PTP_V1_L4_EVENT or
HWTSTAMP_FILTER_PTP_V2_L4_EVENT is requested. This results in ptp sync on
slave mode to report 'received SYNC without timestamp' when using ptp4l.

Although the hardware can support Sync, Pdelay_Req and Pdelay_resp by
setting bit14 annd bits 17/16 to 01 this leaves Delay_Req timestamps out.

Fix this by enabling all event and general messages timestamps.
This includes SYNC, Follow_Up, Delay_Req, Delay_Resp, Pdelay_Req,
Pdelay_Resp and Pdelay_Resp_Follow_Up messages.

Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Acked-by: Jose Abreu <joabreu@synopsys.com>
Tested-by: Alexandre TORGUE <alexandre.torgue@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: dsa: mv88e6xxx: Prevent suspend to RAM
Miquel Raynal [Tue, 5 Feb 2019 11:07:28 +0000 (12:07 +0100)]
net: dsa: mv88e6xxx: Prevent suspend to RAM

On one hand, the mv88e6xxx driver has a work queue called in loop
which will attempt register accesses after MDIO bus suspension, that
entirely freezes the platform during suspend.

On the other hand, the DSA core is not ready yet to support suspend to
RAM operation because so far there is no way to recover reliably the
switch configuration.

To avoid the kernel to freeze when suspending with a switch driven by
the mv88e6xxx driver, we choose to prevent the driver suspension and
in the same way, the whole platform.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Vivien Didelot <vivien.didelot@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoMerge branch 'for_net-next-5.1/rds-tos-v4' of git://git.kernel.org/pub/scm/linux...
David S. Miller [Thu, 7 Feb 2019 01:00:15 +0000 (17:00 -0800)]
Merge branch 'for_net-next-5.1/rds-tos-v4' of git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux

Santosh Shilimkar says:

====================
rds: add tos support

RDS applications make use of tos to classify database traffic.
This feature has been used in shipping products from 2.6.32 based
kernels. Its tied with RDS v4.1 protocol version and the compatibility
gets negotiated as part of connections setup.

Patchset keeps full backward compatibility using existing connection
negotiation scheme. Currently the feature is exploited by RDMA
transport and for TCP transport the user tos values are mapped to
same default class (0).

For RDMA transports, RDMA CM service type API is used to
set up different SL(service lanes) and the IB fabric is configured
for tos mapping using Subnet Manager(SL to VL mappings).
Similarly for ROCE fabric, user priority is mapped with different
DSCP code points which are associated with different switch queues
in the fabric.

The original code was developed by Bang Nguyen in downstream kernel back in
2.6.32 kernel days and it has evolved significantly over period of time.

Thanks to Yanjun for doing testing with various combinations of host like
v3.1<->v4.1, v4.1.<->v3.1, v4.1 upstream to shipping v4.1 etc etc
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
David S. Miller [Thu, 7 Feb 2019 00:56:20 +0000 (16:56 -0800)]
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next

Daniel Borkmann says:

====================
pull-request: bpf-next 2019-02-07

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

The main changes are:

1) Add a riscv64 JIT for BPF, from Björn.

2) Implement BTF deduplication algorithm for libbpf which takes BTF type
   information containing duplicate per-compilation unit information and
   reduces it to an equivalent set of BTF types with no duplication and
   without loss of information, from Andrii.

3) Offloaded and native BPF XDP programs can coexist today, enable also
   offloaded and generic ones as well, from Jakub.

4) Expose various BTF related helper functions in libbpf as API which
   are in particular helpful for JITed programs, from Yonghong.

5) Fix the recently added JMP32 code emission in s390x JIT, from Heiko.

6) Fix BPF kselftests' tcp_{server,client}.py to be able to run inside
   a network namespace, also add a fix for libbpf to get libbpf_print()
   working, from Stanislav.

7) Fixes for bpftool documentation, from Prashant.

8) Type cleanup in BPF kselftests' test_maps.c to silence a gcc8 warning,
   from Breno.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoMerge branch 'mlxsw-blackhole-routes'
David S. Miller [Wed, 6 Feb 2019 22:24:05 +0000 (14:24 -0800)]
Merge branch 'mlxsw-blackhole-routes'

Ido Schimmel says:

====================
mlxsw: Offload blackhole routes

Blackhole routes are routes that cause matching packets to be silently
dropped. This is in contrast to unreachable routes that generate an ICMP
host unreachable packet in response.

The driver currently programs both route types with a trap action and
lets the kernel drop matching packets. This is sub-optimal as packets
routed using a blackhole route can be directly dropped by the ASIC.

Patch #1 alters mlxsw to program blackhole routes with a discard action.

Patch #2 adds a matching test.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoselftests: mlxsw: Add a test for blackhole routes
Ido Schimmel [Wed, 6 Feb 2019 19:42:03 +0000 (19:42 +0000)]
selftests: mlxsw: Add a test for blackhole routes

Use a simple topology consisting of two hosts directly connected to a
router. Make sure IPv4/IPv6 ping works and then add blackhole routes.
Test that ping fails and that the routes are marked as offloaded. Use a
simple tc filter to test that packets were dropped by the ASIC and not
trapped to the CPU.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agomlxsw: spectrum_router: Offload blackhole routes
Ido Schimmel [Wed, 6 Feb 2019 19:42:01 +0000 (19:42 +0000)]
mlxsw: spectrum_router: Offload blackhole routes

Create a new FIB entry type for blackhole routes and set it in case the
type of the notified route is 'RTN_BLACKHOLE'.

Program such routes with a discard action and mark them as offloaded
since the device is dropping the packets instead of the kernel.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoMerge branch 'net-Introduce-ndo_get_port_parent_id'
David S. Miller [Wed, 6 Feb 2019 22:17:16 +0000 (14:17 -0800)]
Merge branch 'net-Introduce-ndo_get_port_parent_id'

Florian Fainelli says:

====================
net: Introduce ndo_get_port_parent_id()

Based on discussion with Ido and feedback from Jakub there are clearly
two classes of users that implement SWITCHDEV_ATTR_ID_PORT_PARENT_ID:

- PF/VF drivers which typically only implement return the port's parent
  ID, yet have to implement switchdev_port_attr_get() just for that

- Ethernet switch drivers: mlxsw, ocelot, DSA, etc. which implement more
  attributes which we want to be able to eventually veto in the context
  of the caller, thus making them candidates for using a blocking notifier
  chain

Changes in v4:

- remove superfluous net/switchdev.h inclusions in a few files
- added Jiri's Acked-by where given
- removed err = -EOPNOTSUPP initializations
- changed according to Jiri's suggestion in net/ipv4/ipmr.c

Changes in v3:

- keep ethsw's switchdev_ops assignment
- remove inclusion of net/switchdev.h in netdevsim which is no longer
  necesary

Changes in v2:

- resolved build failures spotted by kbuild test robot
- added helpers functions into the core network device layer:
  dev_get_port_parent_id() and netdev_port_same_parent_id();
- added support for recursion to lower devices

Changes from RFC:

- introduce a ndo_get_port_parent_id() and convert all relevant drivers
  to use it

- get rid of SWITCHDEV_ATTR_ID_PORT_PARENT_ID

A subsequent set of patches will convert switchdev_port_attr_set() to
use a blocking notifier call, and still get rid of
switchdev_port_attr_get() altogether.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: Get rid of SWITCHDEV_ATTR_ID_PORT_PARENT_ID
Florian Fainelli [Wed, 6 Feb 2019 17:45:46 +0000 (09:45 -0800)]
net: Get rid of SWITCHDEV_ATTR_ID_PORT_PARENT_ID

Now that we have a dedicated NDO for getting a port's parent ID, get rid
of SWITCHDEV_ATTR_ID_PORT_PARENT_ID and convert all callers to use the
NDO exclusively. This is a preliminary change to getting rid of
switchdev_ops eventually.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: dsa: Implement ndo_get_port_parent_id()
Florian Fainelli [Wed, 6 Feb 2019 17:45:45 +0000 (09:45 -0800)]
net: dsa: Implement ndo_get_port_parent_id()

DSA implements SWITCHDEV_ATTR_ID_PORT_PARENT_ID and we want to get rid
of switchdev_ops eventually, ease that migration by implementing a
ndo_get_port_parent_id() function which returns what
switchdev_port_attr_get() would do.

Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agostaging: fsl-dpaa2: ethsw: Implement ndo_get_port_parent_id()
Florian Fainelli [Wed, 6 Feb 2019 17:45:44 +0000 (09:45 -0800)]
staging: fsl-dpaa2: ethsw: Implement ndo_get_port_parent_id()

ethsw implements SWITCHDEV_ATTR_ID_PORT_PARENT_ID and we want to get rid
of switchdev_ops eventually, ease that migration by implementing a
ndo_get_port_parent_id() function which returns what
switchdev_port_attr_get() would do.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonetdevsim: Implement ndo_get_port_parent_id()
Florian Fainelli [Wed, 6 Feb 2019 17:45:43 +0000 (09:45 -0800)]
netdevsim: Implement ndo_get_port_parent_id()

netdevsim only supports SWITCHDEV_ATTR_ID_PORT_PARENT_ID, which makes it a
great candidate to be converted to use the ndo_get_port_parent_id() NDO
instead of implementing switchdev_port_attr_get().

Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agorocker: Implement ndo_get_port_parent_id()
Florian Fainelli [Wed, 6 Feb 2019 17:45:42 +0000 (09:45 -0800)]
rocker: Implement ndo_get_port_parent_id()

mlxsw implements SWITCHDEV_ATTR_ID_PORT_PARENT_ID and we want to get rid
of switchdev_ops eventually, ease that migration by implementing a
ndo_get_port_parent_id() function which returns what
switchdev_port_attr_get() would do.

Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonfp: Implement ndo_get_port_parent_id()
Florian Fainelli [Wed, 6 Feb 2019 17:45:41 +0000 (09:45 -0800)]
nfp: Implement ndo_get_port_parent_id()

NFP only supports SWITCHDEV_ATTR_ID_PORT_PARENT_ID, which makes it a
great candidate to be converted to use the ndo_get_port_parent_id() NDO
instead of implementing switchdev_port_attr_get().

Since NFP uses switchdev_port_same_parent_id() convert it to use
netdev_port_same_parent_id().

Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agomscc: ocelot: Implement ndo_get_port_parent_id()
Florian Fainelli [Wed, 6 Feb 2019 17:45:40 +0000 (09:45 -0800)]
mscc: ocelot: Implement ndo_get_port_parent_id()

Ocelot only supports SWITCHDEV_ATTR_ID_PORT_PARENT_ID as a valid
switchdev attribute getter, convert it to use ndo_get_port_parent_id()
and get rid of the switchdev_ops::switchdev_port_attr_get altogether.

Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agomlxsw: Implement ndo_get_port_parent_id()
Florian Fainelli [Wed, 6 Feb 2019 17:45:39 +0000 (09:45 -0800)]
mlxsw: Implement ndo_get_port_parent_id()

mlxsw implements SWITCHDEV_ATTR_ID_PORT_PARENT_ID and we want to get rid
of switchdev_ops eventually, ease that migration by implementing a
ndo_get_port_parent_id() function which returns what
switchdev_port_attr_get() would do.

Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet/mlx5e: Implement ndo_get_port_parent_id()
Florian Fainelli [Wed, 6 Feb 2019 17:45:38 +0000 (09:45 -0800)]
net/mlx5e: Implement ndo_get_port_parent_id()

mlx5e only supports SWITCHDEV_ATTR_ID_PORT_PARENT_ID, which makes it a
great candidate to be converted to use the ndo_get_port_parent_id() NDO
instead of implementing switchdev_port_attr_get().

Since mlx5e makes use of switchdev_port_parent_id() convert it to use
netdev_port_same_parent_id().

Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoliquidio: Implement ndo_get_port_parent_id()
Florian Fainelli [Wed, 6 Feb 2019 17:45:37 +0000 (09:45 -0800)]
liquidio: Implement ndo_get_port_parent_id()

Liquidio only supports SWITCHDEV_ATTR_ID_PORT_PARENT_ID, which makes it
a great candidate to be converted to use the ndo_get_port_parent_id()
NDO instead of implementing switchdev_port_attr_get().

Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agobnxt: Implement ndo_get_port_parent_id()
Florian Fainelli [Wed, 6 Feb 2019 17:45:36 +0000 (09:45 -0800)]
bnxt: Implement ndo_get_port_parent_id()

BNXT only supports SWITCHDEV_ATTR_ID_PORT_PARENT_ID, which makes it a
great candidate to be converted to use the ndo_get_port_parent_id() NDO
instead of implementing switchdev_port_attr_get(). The conversion is
straight forward here since the PF and VF code use the same getter.

Since bnxt makes uses of switchdev_port_same_parent_id() convert it to
use netdev_port_same_parent_id().

Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: Introduce ndo_get_port_parent_id()
Florian Fainelli [Wed, 6 Feb 2019 17:45:35 +0000 (09:45 -0800)]
net: Introduce ndo_get_port_parent_id()

In preparation for getting rid of switchdev_ops, create a dedicated NDO
operation for getting the port's parent identifier. There are
essentially two classes of drivers that need to implement getting the
port's parent ID which are VF/PF drivers with a built-in switch, and
pure switchdev drivers such as mlxsw, ocelot, dsa etc.

We introduce a helper function: dev_get_port_parent_id() which supports
recursion into the lower devices to obtain the first port's parent ID.

Convert the bridge, core and ipv4 multicast routing code to check for
such ndo_get_port_parent_id() and call the helper function when valid
before falling back to switchdev_port_attr_get(). This will allow us to
convert all relevant drivers in one go instead of having to implement
both switchdev_port_attr_get() and ndo_get_port_parent_id() operations,
then get rid of switchdev_port_attr_get().

Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agocxgb4: Update 1.22.9.0 as the latest firmware supported.
Vishal Kulkarni [Wed, 6 Feb 2019 13:01:36 +0000 (18:31 +0530)]
cxgb4: Update 1.22.9.0 as the latest firmware supported.

Change t4fw_version.h to update latest firmware version
number to 1.22.9.0.

Signed-off-by: Vishal Kulkarni <vishal@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agocxgb4: Add new T6 PCI device ids 0x608b
Vishal Kulkarni [Wed, 6 Feb 2019 12:57:13 +0000 (18:27 +0530)]
cxgb4: Add new T6 PCI device ids 0x608b

Signed-off-by: Vishal Kulkarni <vishal@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agor8169: Avoid pointer aliasing
Thierry Reding [Wed, 6 Feb 2019 12:30:18 +0000 (13:30 +0100)]
r8169: Avoid pointer aliasing

Read MAC address 32-bit at a time and manually extract the individual
bytes. This avoids pointer aliasing and gives the compiler a better
chance of optimizing the operation.

Suggested-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agor8169: Load MAC address from device tree if present
Thierry Reding [Wed, 6 Feb 2019 12:30:17 +0000 (13:30 +0100)]
r8169: Load MAC address from device tree if present

If the system was booted using a device tree and if the device tree
contains a MAC address, use it instead of reading one from the EEPROM.
This is useful in situations where the EEPROM isn't properly programmed
or where the firmware wants to override the existing MAC address.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoMerge branch 'mlxsw-core-Trace-EMAD-errors'
David S. Miller [Wed, 6 Feb 2019 19:05:57 +0000 (11:05 -0800)]
Merge branch 'mlxsw-core-Trace-EMAD-errors'

Ido Schimmel says:

====================
mlxsw: core: Trace EMAD errors

Nir says:

This patchset adds a trace for EMAD errors to the existing EMAD payload
traces. This tracepoint is useful to track user or firmware errors during
tests execution.

Patch #1 defines the devlink tracepoint.
Patch #2 uses it for reporting mlxsw EMAD errors.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agomlxsw: core: Trace EMAD errors
Nir Dotan [Mon, 4 Feb 2019 18:47:46 +0000 (18:47 +0000)]
mlxsw: core: Trace EMAD errors

Trace EMAD errors returned from HW.

Signed-off-by: Nir Dotan <nird@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agodevlink: add hardware errors tracing facility
Nir Dotan [Mon, 4 Feb 2019 18:47:45 +0000 (18:47 +0000)]
devlink: add hardware errors tracing facility

Define a tracepoint and allow user to trace messages in case of an hardware
error code for hardware associated with devlink instance.

Signed-off-by: Nir Dotan <nird@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoMerge branch 'dpaa2-eth-Driver-updates'
David S. Miller [Wed, 6 Feb 2019 18:49:55 +0000 (10:49 -0800)]
Merge branch 'dpaa2-eth-Driver-updates'

Ioana Ciocoi Radulescu says:

====================
dpaa2-eth: Driver updates

First patch moves the driver to a page-per-frame memory model.
The others are minor tweaks and optimizations.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agodpaa2-eth: Update buffer pool refill threshold
Ioana Ciocoi Radulescu [Mon, 4 Feb 2019 17:00:37 +0000 (17:00 +0000)]
dpaa2-eth: Update buffer pool refill threshold

Add more buffers to the Rx buffer pool as soon as 7 of them
get consumed, instead of waiting for their number to drop
below a fixed threshold.
7 is the number of buffers that can be released in the pool
via a single DPIO command.

Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agodpaa2-eth: Use FQ-based DPIO enqueue API
Ioana Ciocoi Radulescu [Mon, 4 Feb 2019 17:00:36 +0000 (17:00 +0000)]
dpaa2-eth: Use FQ-based DPIO enqueue API

Starting with MC10.14.0, dpaa2_io_service_enqueue_fq() API is
functional. Since there are a number of cases where it offers
better performance compared to the currently used enqueue
function, switch to it for firmware versions that support it.

Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agodpaa2-eth: Use napi_consume_skb()
Ioana Ciocoi Radulescu [Mon, 4 Feb 2019 17:00:35 +0000 (17:00 +0000)]
dpaa2-eth: Use napi_consume_skb()

While in NAPI context, free skbs by calling napi_consume_skb()
instead of dev_kfree_skb(), to take advantage of the bulk freeing
mechanism.

Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agodpaa2-eth: Use a single page per Rx buffer
Ioana Ciocoi Radulescu [Mon, 4 Feb 2019 17:00:35 +0000 (17:00 +0000)]
dpaa2-eth: Use a single page per Rx buffer

Instead of allocating page fragments via the network stack,
use the page allocator directly. For now, we consume one page
for each Rx buffer.

With the new memory model we are free to consider adding more
XDP support.

Performance decreases slightly in some IP forwarding cases.
No visible effect on termination traffic. The driver memory
footprint increases as a result of this change, but it is
still small enough to not really matter.

Another side effect is that now Rx buffer alignment requirements
are naturally satisfied without any additional actions needed.
Remove alignment related code, except in the buffer layout
information conveyed to MC, as hardware still needs to know the
alignment value we guarantee.

Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoMerge branch 'add-flow_rule-infrastructure'
David S. Miller [Wed, 6 Feb 2019 18:38:26 +0000 (10:38 -0800)]
Merge branch 'add-flow_rule-infrastructure'

Pablo Neira Ayuso says:

====================
add flow_rule infrastructure

This patchset, as is, allows us to reuse the driver codebase to
configure ACL hardware offloads for the ethtool_rxnfc and the TC flower
interfaces. A few clients for this infrastructure are presented, such as
the bcm_sf2 and the qede drivers, for reference. Moreover all of the
existing drivers in the tree are converted to use this infrastructure.

This patchset is re-using the existing flow dissector infrastructure
that was introduced by Jiri Pirko et al. so the amount of abstractions
that this patchset adds are minimal. Well, just a few wrapper structures
for the selector side of the rules. And, in order to express actions,
this patchset exposes an action API that is based on the existing TC
action infrastructure and what existing drivers already support on that
front.

v7: This patchset is a rebase on top of the net-next tree, after
    addressing questions and feedback from driver developers in the
    last batch.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoqede: use ethtool_rx_flow_rule() to remove duplicated parser code
Pablo Neira Ayuso [Sat, 2 Feb 2019 11:50:54 +0000 (12:50 +0100)]
qede: use ethtool_rx_flow_rule() to remove duplicated parser code

The qede driver supports for ethtool_rx_flow_spec and flower, both
codebases look very similar.

This patch uses the ethtool_rx_flow_rule() infrastructure to remove the
duplicated ethtool_rx_flow_spec parser and consolidate ACL offload
support around the flow_rule infrastructure.

Furthermore, more code can be consolidated by merging
qede_add_cls_rule() and qede_add_tc_flower_fltr(), these two functions
also look very similar.

This driver currently provides simple ACL support, such as 5-tuple
matching, drop policy and queue to CPU.

Drivers that support more features can benefit from this infrastructure
to save even more redundant codebase.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoqede: place ethtool_rx_flow_spec after code after TC flower codebase
Pablo Neira Ayuso [Sat, 2 Feb 2019 11:50:53 +0000 (12:50 +0100)]
qede: place ethtool_rx_flow_spec after code after TC flower codebase

This is a preparation patch to reuse the existing TC flower codebase
from ethtool_rx_flow_spec.

This patch is merely moving the core ethtool_rx_flow_spec parser after
tc flower offload driver code so we can skip a few forward function
declarations in the follow up patch.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agodsa: bcm_sf2: use flow_rule infrastructure
Pablo Neira Ayuso [Sat, 2 Feb 2019 11:50:52 +0000 (12:50 +0100)]
dsa: bcm_sf2: use flow_rule infrastructure

Update this driver to use the flow_rule infrastructure, hence we can use
the same code to populate hardware IR from ethtool_rx_flow and the
cls_flower interfaces.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoethtool: add ethtool_rx_flow_spec to flow_rule structure translator
Pablo Neira Ayuso [Sat, 2 Feb 2019 11:50:51 +0000 (12:50 +0100)]
ethtool: add ethtool_rx_flow_spec to flow_rule structure translator

This patch adds a function to translate the ethtool_rx_flow_spec
structure to the flow_rule representation.

This allows us to reuse code from the driver side given that both flower
and ethtool_rx_flow interfaces use the same representation.

This patch also includes support for the flow type flags FLOW_EXT,
FLOW_MAC_EXT and FLOW_RSS.

The ethtool_rx_flow_spec_input wrapper structure is used to convey the
rss_context field, that is away from the ethtool_rx_flow_spec structure,
and the ethtool_rx_flow_spec structure.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoflow_offload: add wake-up-on-lan and queue to flow_action
Pablo Neira Ayuso [Sat, 2 Feb 2019 11:50:50 +0000 (12:50 +0100)]
flow_offload: add wake-up-on-lan and queue to flow_action

These actions need to be added to support the ethtool_rx_flow interface.
The queue action includes a field to specify the RSS context, that is
set via FLOW_RSS flow type flag and the rss_context field in struct
ethtool_rxnfc, plus the corresponding queue index. FLOW_RSS implies that
rss_context is non-zero, therefore, queue.ctx == 0 means that FLOW_RSS
was not set. Also add a field to store the vf index which is stored in
the ethtool_rxnfc ring_cookie field.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agocls_flower: don't expose TC actions to drivers anymore
Pablo Neira Ayuso [Sat, 2 Feb 2019 11:50:49 +0000 (12:50 +0100)]
cls_flower: don't expose TC actions to drivers anymore

Now that drivers have been converted to use the flow action
infrastructure, remove this field from the tc_cls_flower_offload
structure.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agodrivers: net: use flow action infrastructure
Pablo Neira Ayuso [Sat, 2 Feb 2019 11:50:48 +0000 (12:50 +0100)]
drivers: net: use flow action infrastructure

This patch updates drivers to use the new flow action infrastructure.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoflow_offload: add statistics retrieval infrastructure and use it
Pablo Neira Ayuso [Sat, 2 Feb 2019 11:50:47 +0000 (12:50 +0100)]
flow_offload: add statistics retrieval infrastructure and use it

This patch provides the flow_stats structure that acts as container for
tc_cls_flower_offload, then we can use to restore the statistics on the
existing TC actions. Hence, tcf_exts_stats_update() is not used from
drivers anymore.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agocls_api: add translator to flow_action representation
Pablo Neira Ayuso [Sat, 2 Feb 2019 11:50:46 +0000 (12:50 +0100)]
cls_api: add translator to flow_action representation

This patch implements a new function to translate from native TC action
to the new flow_action representation. Moreover, this patch also updates
cls_flower to use this new function.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoflow_offload: add flow action infrastructure
Pablo Neira Ayuso [Sat, 2 Feb 2019 11:50:45 +0000 (12:50 +0100)]
flow_offload: add flow action infrastructure

This new infrastructure defines the nic actions that you can perform
from existing network drivers. This infrastructure allows us to avoid a
direct dependency with the native software TC action representation.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet/mlx5e: support for two independent packet edit actions
Pablo Neira Ayuso [Sat, 2 Feb 2019 11:50:44 +0000 (12:50 +0100)]
net/mlx5e: support for two independent packet edit actions

This patch adds pedit_headers_action structure to store the result of
parsing tc pedit actions. Then, it calls alloc_tc_pedit_action() to
populate the mlx5e hardware intermediate representation once all actions
have been parsed.

This patch comes in preparation for the new flow_action infrastructure,
where each packet mangling comes in an separated action, ie. not packed
as in tc pedit.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoflow_offload: add flow_rule and flow_match structures and use them
Pablo Neira Ayuso [Sat, 2 Feb 2019 11:50:43 +0000 (12:50 +0100)]
flow_offload: add flow_rule and flow_match structures and use them

This patch wraps the dissector key and mask - that flower uses to
represent the matching side - around the flow_match structure.

To avoid a follow up patch that would edit the same LoCs in the drivers,
this patch also wraps this new flow match structure around the flow rule
object. This new structure will also contain the flow actions in follow
up patches.

This introduces two new interfaces:

bool flow_rule_match_key(rule, dissector_id)

that returns true if a given matching key is set on, and:

flow_rule_match_XYZ(rule, &match);

To fetch the matching side XYZ into the match container structure, to
retrieve the key and the mask with one single call.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoMerge branch 'net-phy-add-and-use-further-MMD-accessors'
David S. Miller [Wed, 6 Feb 2019 17:52:43 +0000 (09:52 -0800)]
Merge branch 'net-phy-add-and-use-further-MMD-accessors'

Heiner Kallweit says:

====================
net: phy: add and use further MMD accessors

Add MMD accessors for modifying MMD registers and clearing / setting
bits in MMD registers. Use these accessors in PHY drivers and phylib.

v2:
- fix SoB in patch 2
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: phy: make use of new MMD accessors
Heiner Kallweit [Wed, 6 Feb 2019 06:38:43 +0000 (07:38 +0100)]
net: phy: make use of new MMD accessors

Make use of the new MMD accessors.

v2:
- fix SoB

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: phy: provide full set of accessor functions to MMD registers
Nikita Yushchenko [Wed, 6 Feb 2019 06:36:40 +0000 (07:36 +0100)]
net: phy: provide full set of accessor functions to MMD registers

This adds full set of locked and unlocked accessor functions to read and
write PHY MMD registers and/or bitfields.

Set of functions exactly matches what is already available for PHY
legacy registers.

Signed-off-by: Nikita Yushchenko <nikita.yoush@cogentembedded.com>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoMerge tag 'wireless-drivers-next-for-davem-2019-02-06' of git://git.kernel.org/pub...
David S. Miller [Wed, 6 Feb 2019 17:36:36 +0000 (09:36 -0800)]
Merge tag 'wireless-drivers-next-for-davem-2019-02-06' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

Kalle Valo says:

====================
wireless-drivers-next patches for 5.1

First set of patches for 5.1. Lots of new features in various drivers
but nothing really special standing out.

Major changes:

brcmfmac

* DMI nvram filename quirk for PoV TAB-P1006W-232 tablet

rsi

* support for hardware scan offload

iwlwifi

* support for Target Wakeup Time (TWT) -- a feature that allows the AP
  to specify when individual stations can access the medium

* support for mac80211 AMSDU handling

* some new PCI IDs

* relicense the pcie submodule to dual GPL/BSD

* reworked the TOF/CSI (channel estimation matrix) implementation

* Some product name updates in the human-readable strings

mt76

* energy detect regulatory compliance fixes

* preparation for MT7603 support

* channel switch announcement support

mwifiex

* support for sd8977 chipset

qtnfmac

* support for 4addr mode

* convert to SPDX license identifiers
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agobpf: test_maps: fix possible out of bound access warning
Breno Leitao [Tue, 5 Feb 2019 17:12:34 +0000 (15:12 -0200)]
bpf: test_maps: fix possible out of bound access warning

When compiling test_maps selftest with GCC-8, it warns that an array
might be indexed with a negative value, which could cause a negative
out of bound access, depending on parameters of the function. This
is the GCC-8 warning:

gcc -Wall -O2 -I../../../include/uapi -I../../../lib -I../../../lib/bpf -I../../../../include/generated -DHAVE_GENHDR -I../../../include    test_maps.c /home/breno/Devel/linux/tools/testing/selftests/bpf/libbpf.a -lcap -lelf -lrt -lpthread -o /home/breno/Devel/linux/tools/testing/selftests/bpf/test_maps
In file included from test_maps.c:16:
test_maps.c: In function ‘run_all_tests’:
test_maps.c:1079:10: warning: array subscript -1 is below array bounds of ‘pid_t[<Ube20> + 1]’ [-Warray-bounds]
   assert(waitpid(pid[i], &status, 0) == pid[i]);
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
test_maps.c:1059:6: warning: array subscript -1 is below array bounds of ‘pid_t[<Ube20> + 1]’ [-Warray-bounds]
   pid[i] = fork();
   ~~~^~~

This patch simply guarantees that the task(s) variables are unsigned,
thus, they could never be a negative number (which they are not in
current code anyway), hence avoiding an out of bound access warning.

Signed-off-by: Breno Leitao <leitao@debian.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
5 years agotools: bpftool: doc, fix incorrect text
Prashant Bhole [Wed, 6 Feb 2019 01:47:23 +0000 (10:47 +0900)]
tools: bpftool: doc, fix incorrect text

Documentation about cgroup, feature, prog uses wrong header
'MAP COMMANDS' while listing commands. This patch corrects the header
in respective doc files.

Signed-off-by: Prashant Bhole <bhole_prashant_q7@lab.ntt.co.jp>
Acked-by: Yonghong Song <yhs@fb.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
5 years agoMerge branch 'bpf-xdp-hw-plus-generic'
Daniel Borkmann [Wed, 6 Feb 2019 14:35:43 +0000 (15:35 +0100)]
Merge branch 'bpf-xdp-hw-plus-generic'

Jakub Kicinski says:

====================
Offloaded and native/driver XDP programs can already coexist.
Allow offload and generic hook to coexist as well, there seem
to be no reason why not to do so.
====================

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
5 years agoselftests/bpf: test reading the offloaded program
Jakub Kicinski [Wed, 6 Feb 2019 04:03:24 +0000 (20:03 -0800)]
selftests/bpf: test reading the offloaded program

Test adding the offloaded program after the other program
is already installed.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
5 years agoselftests/bpf: add test for mixing generic and offload XDP
Jakub Kicinski [Wed, 6 Feb 2019 04:03:23 +0000 (20:03 -0800)]
selftests/bpf: add test for mixing generic and offload XDP

Add simple sanity check for enabling generic and offload
XDP, simply reuse the native and offload checks.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
5 years agoselftests/bpf: print traceback when test fails
Jakub Kicinski [Wed, 6 Feb 2019 04:03:22 +0000 (20:03 -0800)]
selftests/bpf: print traceback when test fails

Figuring out which exact check in test_offload.py takes more
time than it should.  Print the traceback (to the screen and
the logs).

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
5 years agonet: xdp: allow generic and driver XDP on one interface
Jakub Kicinski [Wed, 6 Feb 2019 04:03:21 +0000 (20:03 -0800)]
net: xdp: allow generic and driver XDP on one interface

Since commit a25717d2b604 ("xdp: support simultaneous driver and
hw XDP attachment") users can load an XDP program for offload and
in native driver mode simultaneously.  Allow a similar mix of
offload and SKB mode/generic XDP.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
5 years agoselftests/bpf: fix the expected messages
Jakub Kicinski [Wed, 6 Feb 2019 04:03:20 +0000 (20:03 -0800)]
selftests/bpf: fix the expected messages

Recent changes added extack to program replacement path,
expect extack instead of generic messages.

Fixes: 01dde20ce04b ("xdp: Provide extack messages when prog attachment failed")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
5 years agotools/bpf: silence a libbpf unnecessary warning
Yonghong Song [Wed, 6 Feb 2019 05:38:30 +0000 (21:38 -0800)]
tools/bpf: silence a libbpf unnecessary warning

Commit 96408c43447a ("tools/bpf: implement libbpf
btf__get_map_kv_tids() API function") refactored
function bpf_map_find_btf_info() and moved bulk of
implementation into btf.c as btf__get_map_kv_tids().
This change introduced a bug such that test_btf will
print out the following warning although the test passed:
  BTF libbpf test[2] (test_btf_nokv.o): libbpf: map:btf_map
      container_name:____btf_map_btf_map cannot be found
      in BTF. Missing BPF_ANNOTATE_KV_PAIR?

Previously, the error message is guarded with pr_debug().
Commit 96408c43447a changed it to pr_warning() and
hence caused the warning.

Restoring to pr_debug() for the message fixed the issue.

Fixes: 96408c43447a ("tools/bpf: implement libbpf btf__get_map_kv_tids() API function")
Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
5 years agoMerge branch '1GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next...
David S. Miller [Wed, 6 Feb 2019 04:15:30 +0000 (20:15 -0800)]
Merge branch '1GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue

Jeff Kirsher says:

====================
Intel Wired LAN Driver Updates 2019-02-05

This series contains updates to igc, e1000e, ixgbe, fm10k and driver
documentation.

Kai-Heng Feng fixes an e1000e issue where the Wake-On-LAN settings where
being set incorrectly during a system suspend.

Sasha addresses community feedback on the igc driver and provides a
number of code cleanups to remove either unreachable or unused code.  In
addition, added basic ethtool support for the igc driver.

Mike Rapoport fixes the formatting of the kernel driver documentation so
that the title is properly formatted and does not get lumped with the
document sections in the HTML kernel documents generated.

Jiri Kosina updates a hard coded RAR entries value with the existing
define IXGBE_82599_RAR_ENTRIES.

Jake fixes up whitespace in the fm10k driver.

Konstantin Khlebnikov fixes an issue where in some cases, the e1000e
driver will continually reset during a system boot because the watchdog
task sees items in the transmit buffer but the carrier is off (trying to
establish link) causing the device reset to flush the buffer.  To
resolve, just move this check/flush into the watchdog section for when
the carrier is off.

Todd bumps the igb driver version to reflect the recent driver changes.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agotools/bpf: add const qualifier to btf__get_map_kv_tids() map_name parameter
Yonghong Song [Tue, 5 Feb 2019 19:48:22 +0000 (11:48 -0800)]
tools/bpf: add const qualifier to btf__get_map_kv_tids() map_name parameter

Commit 96408c43447a ("tools/bpf: implement libbpf btf__get_map_kv_tids() API function")
added the API function btf__get_map_kv_tids():
  btf__get_map_kv_tids(const struct btf *btf, char *map_name, ...)

The parameter map_name has type "char *". This is okay inside libbpf library since
the map_name is from bpf_map->name which also has type "char *".

This will be problematic if the caller for map_name already has attribute "const",
e.g., from C++ string.c_str(). It will result in either a warning or an error.

  /home/yhs/work/bcc/src/cc/btf.cc:166:51:
    error: invalid conversion from ‘const char*’ to ‘char*’ [-fpermissive]
      return btf__get_map_kv_tids(btf_, map_name.c_str()

This patch added "const" attributes to map_name parameter.

Fixes: 96408c43447a ("tools/bpf: implement libbpf btf__get_map_kv_tids() API function")
Signed-off-by: Yonghong Song <yhs@fb.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
5 years agotools/bpf: fix a selftest test_btf failure
Yonghong Song [Tue, 5 Feb 2019 22:28:44 +0000 (14:28 -0800)]
tools/bpf: fix a selftest test_btf failure

Commit 9c651127445c ("selftests/btf: add initial BTF dedup tests")
added dedup tests in test_btf.c.
It broke the raw test:
 BTF raw test[71] (func proto (Bad arg name_off)):
    btf_raw_create:2905:FAIL Error getting string #65535, strs_cnt:1

The test itself encodes invalid func_proto parameter name
offset 0xffffFFFF as a negative test for the kernel.
The above commit changed the meaning of that offset and
resulted in a user space error.
  #define NAME_NTH(N) (0xffff0000 | N)
  #define IS_NAME_NTH(X) ((X & 0xffff0000) == 0xffff0000)
  #define GET_NAME_NTH_IDX(X) (X & 0x0000ffff)

Currently, the kernel permits maximum name offset 0xffff.
Set the test name off as 0x0fffFFFF to trigger the kernel
verification failure.

Cc: Andrii Nakryiko <andriin@fb.com>
Fixes: 9c651127445c ("selftests/btf: add initial BTF dedup tests")
Signed-off-by: Yonghong Song <yhs@fb.com>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
5 years agoigc: Add ethtool support
Sasha Neftin [Wed, 30 Jan 2019 17:13:14 +0000 (19:13 +0200)]
igc: Add ethtool support

This patch adds basic ethtool support to the device to allow
for configuration.

Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
5 years agoigb: Bump version number
Todd Fujinaka [Wed, 23 Jan 2019 22:56:30 +0000 (14:56 -0800)]
igb: Bump version number

With recent changes, need to bump the driver version to reflect the
changes.

Signed-off-by: Todd Fujinaka <todd.fujinaka@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
5 years agoigc: Remove the 'igc_get_phy_id_base' method
Sasha Neftin [Tue, 15 Jan 2019 13:21:18 +0000 (15:21 +0200)]
igc: Remove the 'igc_get_phy_id_base' method

Remove the redundant 'igc_get_phy_id_base' method and use
the 'igc_get_phy_id' method directly instead.

Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>