Commit Graph

739001 Commits

Author SHA1 Message Date
Teng Qin
95da0cdb72 bpf: add support to read sample address in bpf program
This commit adds new field "addr" to bpf_perf_event_data which could be
read and used by bpf programs attached to perf events. The value of the
field is copied from bpf_perf_event_data_kern.addr and contains the
address value recorded by specifying sample_type with PERF_SAMPLE_ADDR
when calling perf_event_open.

Signed-off-by: Teng Qin <qinteng@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-03-08 02:22:34 +01:00
Eric Dumazet
a366e300ae ip6mr: remove synchronize_rcu() in favor of SOCK_RCU_FREE
Kirill found that recently added synchronize_rcu() call in
ip6mr_sk_done()
was slowing down netns dismantle and posted a patch to use it only if
the socket
was found.

I instead suggested to get rid of this call, and use instead
SOCK_RCU_FREE

We might later change IPv4 side to use the same technique and unify
both stacks. IPv4 does not use synchronize_rcu() but has a call_rcu()
that could be replaced by SOCK_RCU_FREE.

Tested:
 time for i in {1..1000}; do unshare -n /bin/false;done

 Before : real 7m18.911s
 After : real 10.187s

Fixes: 8571ab479a ("ip6mr: Make mroute_sk rcu-based")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Kirill Tkhai <ktkhai@virtuozzo.com>
Cc: Yuval Mintz <yuvalm@mellanox.com>
Reviewed-by: Kirill Tkhai <ktkhai@virtuozzo.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-07 18:13:41 -05:00
David S. Miller
3f6be0ebde Merge branch 'RDS-zerocopy-code-enhancements'
Sowmini Varadhan says:

====================
RDS: zerocopy code enhancements

A couple of enhancements to the rds zerocop code
- patch 1 refactors rds_message_copy_from_user to pull the zcopy logic
  into its own function
- patch 2 drops the usage sk_buff to track MSG_ZEROCOPY cookies and
  uses a simple linked list (enhancement suggested by willemb during
  code review)
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-07 18:05:57 -05:00
Sowmini Varadhan
9426bbc6de rds: use list structure to track information for zerocopy completion notification
Commit 401910db4c ("rds: deliver zerocopy completion notification
with data") removes support fo r zerocopy completion notification
on the sk_error_queue, thus we no longer need to track the cookie
information in sk_buff structures.

This commit removes the struct sk_buff_head rs_zcookie_queue by
a simpler list that results in a smaller memory footprint as well
as more efficient memory_allocation time.

Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-07 18:05:57 -05:00
Sowmini Varadhan
d40a126b16 rds: refactor zcopy code into rds_message_zcopy_from_user
Move the large block of code predicated on zcopy from
rds_message_copy_from_user into a new function,
rds_message_zcopy_from_user()

Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-07 18:05:57 -05:00
Gustavo A. R. Silva
c33b3b9fcf cxgb3: remove VLA usage
Remove VLA usage and change the 'len' argument to a u8 and use a 256
byte buffer on the stack. Notice that these lengths are limited by the
encoding field in the VPD structure, which is a u8 [1].

[1] https://marc.info/?l=linux-netdev&m=152044354814024&w=2

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-07 15:55:50 -05:00
Jesus Sanchez-Palencia
334e641313 sock: Fix SO_ZEROCOPY switch case
Fix the SO_ZEROCOPY switch case on sock_setsockopt() avoiding the
ret values to be overwritten by the one set on the default case.

Fixes: 28190752c7 ("sock: permit SO_ZEROCOPY on PF_RDS socket")
Signed-off-by: Jesus Sanchez-Palencia <jesus.sanchez-palencia@intel.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Acked-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-07 15:54:46 -05:00
David S. Miller
92dbb332a2 Merge branch 'mvpp2-ucast-filter'
Maxime Chevallier says:

====================
net: mvpp2: Add Unicast filtering capabilities

This series adds unicast filtering support to the Marvell PPv2 controller.

This is implemented using the header parser cababilities of the PPv2,
which allows for generic packet filtering based on matching patterns in
the packet headers.

PPv2 controller only has 256 of these entries, and we need to share them
with other features, such as VLAN filtering.

For each interface, we have 5 entries dedicated to unicast filtering (the
controller's own address, and 4 other), and 21 to multicast filtering.

When this number is reached, the controller switches to unicast or
multicast promiscuous mode.

The first patch reworks the function that adds and removes addresses to the
filter. This is preparatory work to ease UC filter implementation.

The second patch adds the UC filtering feature.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-07 15:53:39 -05:00
Maxime Chevallier
10fea26ce2 net: mvpp2: Add support for unicast filtering
Marvell PPv2 controller can be used to implement packet filtering based
on the destination MAC address. This is already used to implement
multicast filtering. This patch adds support for Unicast filtering.

Filtering is based on so-called "TCAM entries" to implement filtering.
Due to their limited number and the fact that these are also used for
other purposes, we reserve 80 entries for both unicast and multicast
filters. On top of the broadcast address, and each interface's own MAC
address, we reserve 25 entries per port, 4 for unicast filters, 21 for
multicast.

Whenever unicast or multicast range for one port is full, the filtering
is disabled and port goes into promiscuous mode for the given type of
addresses.

Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-07 15:53:39 -05:00
Maxime Chevallier
ce2a27c761 net: mvpp2: Simplify MAC filtering function parameters
The mvpp2_prs_mac_da_accept function takes into parameter both the
struct representing the controller and the port id. This is meaningful
when we want to create TCAM entries for non-initialized ports, but in
this case we expect the port to be initialized before starting adding or
removing MAC addresses to the per-port filter.

This commit changes the function so that it takes struct mvpp2_port as
a parameter instead.

Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-07 15:53:39 -05:00
Jiri Pirko
dff58a09d7 selftests: forwarding: fix flags passed to first drop rule in gact_drop_and_ok_test
Fix copy&paste error and pass proper flags.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-07 15:41:20 -05:00
Jiri Pirko
0c17db05ec selftests: forwarding: fix "ok" action test
Fix the "ok" action test so it checks that packet that is okayed does not
continue to be processed by other rules. Fix error message as well.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-07 15:41:19 -05:00
Johan Hovold
bb5441fc3c net: cdc_eem: clean up bind error path
Drop bogus call to usb_driver_release_interface() from an error path in
the usbnet bind() callback, which is called during interface probe. At
this point the interface is not bound and usb_driver_release_interface()
returns early.

Also remove the bogus call to clear the interface data, which is owned
by the usbnet driver and would not even have been set by the time bind()
is called.

Signed-off-by: Johan Hovold <johan@kernel.org>
Acked-by: Oliver Neukum <oneukum@suse.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-07 15:39:27 -05:00
Johan Hovold
4f06717fb0 net: kalmia: clean up bind error path
Drop bogus call to usb_driver_release_interface() from an error path in
the usbnet bind() callback, which is called during interface probe. At
this point the interface is not bound and usb_driver_release_interface()
returns early.

Also remove the bogus call to clear the interface data, which is owned
by the usbnet driver and would not even have been set by the time bind()
is called.

Signed-off-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-07 15:39:27 -05:00
David S. Miller
bcde6b725f mlx5-updates-2018-02-28-1 (IPSec-1)
This series consists of some fixes and refactors for the mlx5 drivers,
 especially around the FPGA and flow steering. Most of them are trivial
 fixes and are the foundation of allowing IPSec acceleration from user-space.
 
 We use flow steering abstraction in order to accelerate IPSec packets.
 When a user creates a steering rule, [s]he states that we'll carry an
 encrypt/decrypt flow action (using a specific configuration) for every
 packet which conforms to a certain match. Since currently offloading these
 packets is done via FPGA, we'll add another set of flow steering ops.
 These ops will execute the required FPGA commands and then call the
 standard steering ops.
 
 In order to achieve this, we need that the commands will get all the
 required information. Therefore, we pass the fte object and embed the
 flow_action struct inside the fte. In addition, we add the shim layer
 that will later be used for alternating between the standard and the
 FPGA steering commands.
 
 Some fixes, like " net/mlx5e: Wait for FPGA command responses with a timeout"
 are very relevant for user-space applications, as these applications could
 be killed, but we still want to wait for the FPGA and update the kernel's
 database.
 
 Regards,
 Aviad and Matan
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Merge tag 'mlx5-updates-2018-02-28-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux

Saeed Mahameed says:

====================
mlx5-updates-2018-02-28-1 (IPSec-1)

This series consists of some fixes and refactors for the mlx5 drivers,
especially around the FPGA and flow steering. Most of them are trivial
fixes and are the foundation of allowing IPSec acceleration from user-space.

We use flow steering abstraction in order to accelerate IPSec packets.
When a user creates a steering rule, [s]he states that we'll carry an
encrypt/decrypt flow action (using a specific configuration) for every
packet which conforms to a certain match. Since currently offloading these
packets is done via FPGA, we'll add another set of flow steering ops.
These ops will execute the required FPGA commands and then call the
standard steering ops.

In order to achieve this, we need that the commands will get all the
required information. Therefore, we pass the fte object and embed the
flow_action struct inside the fte. In addition, we add the shim layer
that will later be used for alternating between the standard and the
FPGA steering commands.

Some fixes, like " net/mlx5e: Wait for FPGA command responses with a timeout"
are very relevant for user-space applications, as these applications could
be killed, but we still want to wait for the FPGA and update the kernel's
database.

Regards,
Aviad and Matan
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-07 15:28:13 -05:00
Stefano Brivio
d1f1b9cbf3 selftests: net: Introduce first PMTU test
One single test implemented so far: test_pmtu_vti6_exception
checks that the PMTU of a route exception, caused by a tunnel
exceeding the link layer MTU, is affected by administrative
changes of the tunnel MTU. Creation of the route exception is
checked too.

Requested-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Acked-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-07 13:39:29 -05:00
Eric Dumazet
d8c13f2271 net/mlx4_en: try to use high order pages for RX rings
RX rings can fit most of the time in a contiguous piece of memory,
so lets use kvzalloc_node/kvfree instead of vzalloc_node/vfree

Note that kvzalloc_node() automatically falls back to another node,
there is no need to do the fallback ourselves.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-07 13:35:23 -05:00
Fengguang Wu
7d99429afa enic: fix boolreturn.cocci warnings
drivers/net/ethernet/cisco/enic/vnic_dev.c:1294:9-10: WARNING: return of 0/1 in function 'vnic_dev_capable_udp_rss' with return type bool

 Return statements in functions returning bool should use
 true/false instead of 1/0.
Generated by: scripts/coccinelle/misc/boolreturn.cocci

Fixes: 48398b6e70 ("enic: set UDP rss flag")
CC: Govindarajulu Varadarajan <gvaradar@cisco.com>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-07 13:34:41 -05:00
Fengguang Wu
b1312b8501 net: dsa: mv88e6xxx: fix boolreturn.cocci warnings
drivers/net/dsa/mv88e6xxx/serdes.c:66:9-10: WARNING: return of 0/1 in function 'mv88e6352_port_has_serdes' with return type bool

 Return statements in functions returning bool should use
 true/false instead of 1/0.
Generated by: scripts/coccinelle/misc/boolreturn.cocci

Fixes: eb755c3f6b ("net: dsa: mv88e6xxx: Add helper to determining if port has SERDES")
CC: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-07 13:33:23 -05:00
Jerome Brunet
630b21a26a net: phy: mdio-mux: slience probe defer error
If we fail to register the mdio bus due to probe defer, we should not
print an error message. Just be silent in this case.

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-07 12:39:59 -05:00
Paolo Abeni
1ec54cb44e net: unpollute priv_flags space
the ipvlan device driver defines and uses 2 bits inside the priv_flags
net_device field. Such bits and the related helper are used only
inside the ipvlan device driver, and the core networking does not
need to be aware of them.

This change moves netif_is_ipvlan* helper in the ipvlan driver and
re-implement them looking for ipvlan specific symbols instead of
using priv_flags.

Overall this frees two bits inside priv_flags - and move the following
ones to avoid gaps - without any intended functional change.

Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-07 12:38:24 -05:00
David S. Miller
b2b19494b8 Merge branch 'net-phy-remove-phy_error-from-phy_disable_interrupts'
Heiner Kallweit says:

====================
net: phy: remove phy_error from phy_disable_interrupts

All callers of phy_disable_interrupts() call phy_error() in the error
case. Therefore we don't need to do this within the function too.
This change also allows us to use phy_disable_interrupts() in code
holding phydev->lock (because phy_error() takes this lock).
Make use of this in phy_stop().

v2:
- splitted into two separate patches
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-07 12:30:20 -05:00
Heiner Kallweit
70a55c32ee net: phy: use phy_disable_interrupts in phy_stop
Now that phy_disable_interrupts() can't take lock phydev->lock any longer,
we can use it to simplify phy_stop().

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-07 12:30:20 -05:00
Heiner Kallweit
4fff2d33c7 net: phy: remove phy_error from phy_disable_interrupts
All callers of phy_disable_interrupts() call phy_error() in the error
case. Therefore we don't need to do this within the function too.
This change also allows us to use phy_disable_interrupts() in code
holding phydev->lock (because phy_error() can take this lock).

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-07 12:30:20 -05:00
Prashant Bhole
4d1e46a55e selftests/net: fix in_netns.sh script
execute the subprocess in netns using 'ip netns exec'

Fixes: cc30c93fa0 ("selftests/net: ignore background traffic in psock_fanout")
Signed-off-by: Prashant Bhole <bhole_prashant_q7@lab.ntt.co.jp>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-07 12:26:05 -05:00
kbuild test robot
6e61e10a8a net: mvpp2: mvpp2_check_hw_buf_num() can be static
Fixes: effbf5f58d ("net: mvpp2: update the BM buffer free/destroy logic")
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-07 12:21:45 -05:00
Gustavo A. R. Silva
9a21ac9432 ipv6: ndisc: use true and false for boolean values
Assign true or false to boolean variables instead of an integer value.

This issue was detected with the help of Coccinelle.

Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-07 12:19:47 -05:00
Brandon Streiff
22936c3e6e dt-bindings: net: dsa: marvell: describe compatibility string
There are two compatibility strings for mv88e6xxx, but it isn't clear
from the documentation why only those two exist when the mv88e6xxx driver
supports more than the 6085 and 6190. Briefly describe how the compatible
property is used, and provide guidance on which to use.

The model list comes from looking at port_base_addr values (0x0 vs 0x10)
in drivers/net/dsa/mv88e6xxx/chip.c.

Signed-off-by: Brandon Streiff <brandon.streiff@ni.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-07 12:18:50 -05:00
Gustavo A. R. Silva
c9efb15a99 tipc: bcast: use true and false for boolean values
Assign true or false to boolean variables instead of an integer value.

This issue was detected with the help of Coccinelle.

Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Acked-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-07 12:18:00 -05:00
David S. Miller
3eac60d173 Merge branch '1GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue
Jeff Kirsher says:

====================
1GbE Intel Wired LAN Driver Updates 2018-03-05

This series contains updates to igb only.

Corinna Vinschen adds the support for trusted VFs into the igb driver.

Mika fixes an issue where PCIe device is physically unplugged can cause
a kernel crash.  This issue is that netif_device_detach() is called in
these cases, which prevents netif_unregister() from bringing the device
down properly.

Christophe JAILLET fixes an issue with igb where HWTSTAMP_TX_ON was
being handled like a bit mask and not a value.

v2: dropped the e1000e fix from the series since I will be pushing it
    through David Miller's net tree.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-07 12:05:56 -05:00
David S. Miller
b5b2f338f6 Merge branch 'lan743x-driver'
Bryan Whitehead says:

====================
lan743x: Add new lan743x driver

Add new lan743x driver.

The lan743x from Microchip Technologies Inc,
is a PCIe to Gigabit Ethernet Controller.

Updates for V4:
Patch 1/2 - Applied community suggestions
	convert to using module_pci_driver

Updates for V3:
Patch 1/2 - Applied community suggestions
	removed initialization tracking flags.
	converted to 64 bit statistics.
	converted tx clean up tasklet to napi.

Updates for V2:
Patch 1/2 - Applied community suggestions
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-07 11:44:43 -05:00
Bryan Whitehead
e8cf7c271b lan743x: Update MAINTAINERS to include lan743x driver
Update MAINTAINERS to include lan743x driver

Signed-off-by: Bryan Whitehead <Bryan.Whitehead@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-07 11:44:42 -05:00
Bryan Whitehead
23f0703c12 lan743x: Add main source files for new lan743x driver
Add main source files for new lan743x driver

Signed-off-by: Bryan Whitehead <Bryan.Whitehead@microchip.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-07 11:44:42 -05:00
David S. Miller
1c02e377e2 Merge branch 'sctp-add-support-for-some-msg_control-options-from-RFC6458'
Xin Long says:

====================
sctp: add support for some msg_control options from RFC6458

This patchset is to add support for 3 msg_control options described
in RFC6458:

    5.3.7.  SCTP PR-SCTP Information Structure (SCTP_PRINFO)
    5.3.9.  SCTP Destination IPv4 Address Structure (SCTP_DSTADDRV4)
    5.3.10. SCTP Destination IPv6 Address Structure (SCTP_DSTADDRV6)

one send flag described in RFC6458:

    SCTP_SENDALL:  This flag, if set, will cause a one-to-many
    style socket to send the message to all associations that
    are currently established on this socket.  For the one-to-
    one style socket, this flag has no effect.

Note there is another msg_control option:

    5.3.8.  SCTP AUTH Information Structure (SCTP_AUTHINFO)

It's a little complicated, I will post it in another patchset after
this.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-07 10:55:30 -05:00
Xin Long
4910280503 sctp: add support for snd flag SCTP_SENDALL process in sendmsg
This patch is to add support for snd flag SCTP_SENDALL process
in sendmsg, as described in section 5.3.4 of RFC6458.

With this flag, you can send the same data to all the asocs of
this sk once.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-07 10:55:29 -05:00
Xin Long
2c0dbaa0c4 sctp: add support for SCTP_DSTADDRV4/6 Information for sendmsg
This patch is to add support for Destination IPv4/6 Address options
for sendmsg, as described in section 5.3.9/10 of RFC6458.

With this option, you can provide more than one destination addrs
to sendmsg when creating asoc, like sctp_connectx.

It's also a necessary send info for sctp_sendv.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-07 10:55:29 -05:00
Xin Long
ed63afb8a3 sctp: add support for PR-SCTP Information for sendmsg
This patch is to add support for PR-SCTP Information for sendmsg,
as described in section 5.3.7 of RFC6458.

With this option, you can specify pr_policy and pr_value for user
data in sendmsg.

It's also a necessary send info for sctp_sendv.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-07 10:55:29 -05:00
Niklas Söderlund
5c3d0fd4b2 ravb: remove erroneous comment
When addressing a review comment in a early version of the offending
patch a comment where left in which should have been removed. Remove the
comment to keep it consistent with the code.

Fixes: 75efa06f45 ("ravb: add support for changing MTU")
Reported-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-07 10:40:14 -05:00
Kirill Tkhai
30855ffc29 net: Make account struct net to memcg
The patch adds SLAB_ACCOUNT to flags of net_cachep cache,
which enables accounting of struct net memory to memcg kmem.
Since number of net_namespaces may be significant, user
want to know, how much there were consumed, and control.

Note, that we do not account net_generic to the same memcg,
where net was accounted, moreover, we don't do this at all (*).
We do not want the situation, when single memcg memory deficit
prevents us to register new pernet_operations.

(*)Even despite there is !current process accounting already
available in linux-next. See kmalloc_memcg() there for the details.

Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-07 10:19:10 -05:00
Aviad Yehezkel
e810bf5e96 net/mlx5: Flow steering cmd interface should get the fte when deleting
Previously, deleting a flow steering entry only got the index.
Since the FPGA implementation of FTE's deletion might need to dig
inside the FTE itself, we would like to get the FTE's context.
Changing the interface to pass the FTE context.

Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com>
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-03-06 22:20:15 -08:00
Boris Pismenny
3346c48737 {net,IB}/mlx5: Add flow steering helpers
Add helper functions that check if a protocol is
part of a flow steering match criteria.

Signed-off-by: Boris Pismenny <borisp@mellanox.com>
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-03-06 22:20:14 -08:00
Matan Barak
d2ec6a35e8 net/mlx5: Embed mlx5_flow_act into fs_fte
fte objects contain the match value and action. Currently, extending
the actions require in adding them both to the API and fs_fte.

Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-03-06 22:20:13 -08:00
Aviad Yehezkel
5f4183781a net/mlx5: Add empty egress namespace to flow steering core
Currently, we don't support egress flow steering namespace in mlx5
flow steering core implementation. However, when we want to encrypt
a packet, we model it as a flow steering rule in the egress path.
To overcome this, we add an empty egress namespace to flow steering.
This namespace is initialized only when ipsec support exists.
In the future, this will grow to a full blown full steering
implementation, resembling the ingress path.

Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-03-06 22:20:13 -08:00
Matan Barak
af76c50198 net/mlx5: Add shim layer between fs and cmd
The shim layer allows each namespace to define possibly different
functionality for add/delete/update commands. The shim layer
introduced here, will be used to support flow steering with the FPGA.

Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com>
Signed-off-by: Boris Pismenny <borisp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-03-06 22:19:56 -08:00
Matan Barak
a9db0ecf15 {net,IB}/mlx5: Add has_tag to mlx5_flow_act
The has_tag member will indicate whether a tag action was specified
in flow specification.

A flow tag 0 = MLX5_FS_DEFAULT_FLOW_TAG is assumed a valid flow tag
that is currently used by mlx5 RDMA driver, whereas in HW flow_tag = 0
means that the user doesn't care about flow_tag.  HW always provide
a flow_tag = 0 if all flow tags requested on a specific flow are 0.

So we need a way (in the driver) to differentiate between a user really
requesting flow_tag = 0 and a user who does not care, in order to be
able to report conflicting flow tags on a specific flow.

Signed-off-by: Matan Barak <matanb@mellanox.com>
Reviewed-by: Aviad Yehezkel <aviadye@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-03-06 22:06:33 -08:00
Boris Pismenny
075572d4b7 IB/mlx5: Pass mlx5_flow_act struct instead of multiple arguments
Group and pass all function arguments of parse_flow_attr call in one
common struct mlx5_flow_act.

This patch passes all the action arguments of parse_flow_attr in one common
struct mlx5_flow_act. It allows us to scale the number of actions without adding
new arguments to the function.

Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Boris Pismenny <borisp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Acked-by: Jason Gunthorpe <jgg@mellanox.com>
2018-03-06 22:06:11 -08:00
Matan Barak
04e87170b0 net/mlx5: FPGA and IPSec initialization to be before flow steering
Some flow steering namespace initialization (i.e. egress namespace)
might depend on FPGA capabilities. Changing the initialization order
such that the FPGA will be initialized before flow steering.

Flow steering fs cmds initialization might depend on
IPSec capabilities. Changing the initialization order such
that the IPSec will be initialized before flow steering as well.

Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com>
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-03-06 22:06:10 -08:00
Aviad Yehezkel
1c9a10ebc7 net/mlx5e: Removed not need synchronize_rcu
This is already done by xfrm layer between state_dev_del callback
to state_dev_free callback.

Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-03-06 22:06:09 -08:00
Aviad Yehezkel
dc7debec07 net/mlx5e: Fixed sleeping inside atomic context
We can't allocate with GFP_KERNEL inside spinlock.
Actually ida_simple doesn't require spinlock so remove it.

Fixes: 547eede070 ("net/mlx5e: IPSec, Innova IPSec offload infrastructure")
Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-03-06 22:06:09 -08:00
Aviad Yehezkel
ef927a9c16 net/mlx5e: Wait for FPGA command responses with a timeout
Generally, FPGA IPSec commands must always complete.
We want to wait for one minute for them to complete gracefully also
when killing a process.

Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-03-06 22:06:08 -08:00