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752879 commits

Author SHA1 Message Date
Boris Pismenny
f66de3ee2c net/tls: Split conf to rx + tx
In TLS inline crypto, we can have one direction in software
and another in hardware. Thus, we split the TLS configuration to separate
structures for receive and transmit.

Signed-off-by: Boris Pismenny <borisp@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-01 09:42:47 -04:00
Ilya Lesokhin
2342a8512a net: Add TLS TX offload features
This patch adds a netdev feature to configure TLS TX offloads.

Signed-off-by: Ilya Lesokhin <ilyal@mellanox.com>
Signed-off-by: Boris Pismenny <borisp@mellanox.com>
Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-01 09:42:47 -04:00
Ilya Lesokhin
a5c37c63f7 net: Add TLS offload netdev ops
Add new netdev ops to add and delete tls context

Signed-off-by: Ilya Lesokhin <ilyal@mellanox.com>
Signed-off-by: Boris Pismenny <borisp@mellanox.com>
Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-01 09:42:47 -04:00
Ilya Lesokhin
ebf4e808fa net: Add Software fallback infrastructure for socket dependent offloads
With socket dependent offloads we rely on the netdev to transform
the transmitted packets before sending them to the wire.
When a packet from an offloaded socket is rerouted to a different
device we need to detect it and do the transformation in software.

Signed-off-by: Ilya Lesokhin <ilyal@mellanox.com>
Signed-off-by: Boris Pismenny <borisp@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-01 09:42:46 -04:00
Ilya Lesokhin
08303c1895 net: Rename and export copy_skb_header
copy_skb_header is renamed to skb_copy_header and
exported. Exposing this function give more flexibility
in copying SKBs.
skb_copy and skb_copy_expand do not give enough control
over which parts are copied.

Signed-off-by: Ilya Lesokhin <ilyal@mellanox.com>
Signed-off-by: Boris Pismenny <borisp@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-01 09:42:46 -04:00
Ilya Lesokhin
6dac152355 tcp: Add clean acked data hook
Called when a TCP segment is acknowledged.
Could be used by application protocols who hold additional
metadata associated with the stream data.

This is required by TLS device offload to release
metadata associated with acknowledged TLS records.

Signed-off-by: Ilya Lesokhin <ilyal@mellanox.com>
Signed-off-by: Boris Pismenny <borisp@mellanox.com>
Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-01 09:42:46 -04:00
David S. Miller
1a1f4a28f3 Merge branch '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue
Jeff Kirsher says:

====================
40GbE Intel Wired LAN Driver Updates 2018-04-30

This series contains updates to i40e and i40evf only.

Jia-Ju Bai replaces an instance of GFP_ATOMIC to GFP_KERNEL, since
i40evf is not in atomic context when i40evf_add_vlan() is called.

Jake cleans up function header comments to ensure that the function
parameter comments actually match the function parameters.  Fixed a
possible overflow error in the PTP clock code.  Fixed warnings regarding
restricted __be32 type usage.

Mariusz fixes the reading of the LLDP configuration, which moves from
using relative values to calculating the absolute address.

Jakub adds a check for 10G LR mode for i40e.

Paweł fixes an issue, where changing the MTU would turn on TSO, GSO and
GRO.

Alex fixes a couple of issues with the UDP tunnel filter configuration.
First being that the tunnels did not have mutual exclusion in place to
prevent a race condition between a user request to add/remove a port and
an update.  The second issue was we were deleting filters that were not
associated with the actual filter we wanted to delete.

Harshitha ensures that the queue map sent by the VF is taken into
account when enabling/disabling queues in the VF VSI.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-01 09:37:44 -04:00
David S. Miller
8231bee646 Merge branch 'mlxsw-SPAN-Support-routes-pointing-at-bridges'
Ido Schimmel says:

====================
mlxsw: SPAN: Support routes pointing at bridges

Petr says:

When mirroring to a gretap or ip6gretap netdevice, the route that
directs the encapsulated packets can reference a bridge. In that case,
in the software model, the packet is switched.

Thus when offloading mirroring like that, take into consideration FDB,
STP, PVID configured at the bridge, and whether that VLAN ID should be
tagged on egress.

Patch #1 introduces functions to get bridge PVID, VLAN flags and to look
up an FDB entry.

Patches #2 and #3 refactor some existing code and introduce a new
accessor function.

With patches #4 and #5 mlxsw calls mlxsw_sp_span_respin() on switchdev
events as well. There is no impact yet, because bridge as an underlay
device is still not allowed.

That is implemented in patch #6, which uses the new interfaces to figure
out on which one port the mirroring should be configured, and whether
the mirrored packets should be VLAN-tagged and how.

Changes from v2 to v3:

- Rename the suite of bridge accessor function to br_vlan_get_pvid(),
  br_vlan_get_info() and br_fdb_find_port(). The _get bit is to avoid
  clashing with an existing static function.

Changes from v1 to v2:

- Change the suite of bridge accessor functions to br_vlan_pvid_rtnl(),
  br_vlan_info_rtnl(), br_fdb_find_port_rtnl().
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-30 12:42:41 -04:00
Petr Machata
946a11e740 mlxsw: spectrum_span: Allow bridge for gretap mirror
When handling mirroring to a gretap or ip6gretap netdevice in mlxsw, the
underlay address (i.e. the remote address of the tunnel) may be routed
to a bridge.

In that case, look up the resolved neighbor Ethernet address in that
bridge's FDB. Then configure the offload to direct the mirrored traffic
to that port, possibly with tagging.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-30 12:42:40 -04:00
Petr Machata
c520bc6986 mlxsw: Respin SPAN on switchdev events
Changes to switchdev artifact can make a SPAN entry offloadable or
unoffloadable. To that end:

- Listen to SWITCHDEV_FDB_*_TO_BRIDGE notifications in addition to
  the *_TO_DEVICE ones, to catch whatever activity is sent to the
  bridge (likely by mlxsw itself).

  On each FDB notification, respin SPAN to reconcile it with the FDB
  changes.

- Also respin on switchdev port attribute changes (which currently
  covers changes to STP state of ports) and port object additions and
  removals.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-30 12:42:40 -04:00
Petr Machata
cda880de93 mlxsw: spectrum: Register SPAN before switchdev
Since switchdev events can trigger SPAN respin, it is necessary that the
data structures are available. Register SPAN first, with a commentary on
what the dependencies are.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-30 12:42:40 -04:00
Petr Machata
ea93c7b608 mlxsw: spectrum_switchdev: Publish two functions
Publish the existing function mlxsw_sp_bridge_port_find(), and add
another service accessor mlxsw_sp_bridge_port_stp_state(). Publish both
in a new file spectrum_switchdev.h.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-30 12:42:40 -04:00
Petr Machata
541e11595c mlxsw: spectrum: Extract mlxsw_sp_stp_spms_state()
Instead of duplicating the decision regarding port forwarding state made
by mlxsw_sp_port_vid_stp_set(), extract the decision-making into a new
function and reuse.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-30 12:42:40 -04:00
Petr Machata
4d4fd36126 net: bridge: Publish bridge accessor functions
Add a couple new functions to allow querying FDB and vlan settings of a
bridge.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-30 12:42:40 -04:00
Jacob Keller
bf1099b5ea i40e: use %pI4b instead of byte swapping before dev_err
Fix warnings regarding restricted __be32 type usage by strictly
specifying the type of the ipv4 address being printed in the dev_err
statement.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-04-30 09:34:19 -07:00
Harshitha Ramamurthy
d0fda04d7e i40e/i40evf: take into account queue map from vf when handling queues
The expectation of the ops VIRTCHNL_OP_ENABLE_QUEUES and
VIRTCHNL_OP_DISABLE_QUEUES is that the queue map sent by
the VF is taken into account when enabling/disabling
queues in the VF VSI. This patch makes sure that happens.

By breaking out the individual queue set up functions so
that they can be called directly from the i40e_virtchnl_pf.c
file, only the queues as specified by the queue bit map that
accompanies the enable/disable queues ops will be handled.

Signed-off-by: Harshitha Ramamurthy <harshitha.ramamurthy@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-04-30 09:32:54 -07:00
Jacob Keller
830e0dd999 i40e: avoid overflow in i40e_ptp_adjfreq()
When operating at 1GbE, the base incval for the PTP clock is so large
that multiplying it by numbers close to the max_adj can overflow the
u64.

Rather than attempting to limit the max_adj to a value small enough to
avoid overflow, instead calculate the incvalue adjustment based on the
40GbE incvalue, and then multiply that by the scaling factor for the
link speed.

This sacrifices a small amount of precision in the adjustment but we
avoid erratic behavior of the clock due to the overflow caused if ppb is
very near the maximum adjustment.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-04-30 09:23:39 -07:00
Alexander Duyck
5305d0fe2f i40e: Fix multiple issues with UDP tunnel offload filter configuration
This fixes at least 2 issues I have found with the UDP tunnel filter
configuration.

The first issue is the fact that the tunnels didn't have any sort of mutual
exclusion in place to prevent an update from racing with a user request to
add/remove a port. As such you could request to add and remove a port
before the port update code had a chance to respond which would result in a
very confusing result. To address it I have added 2 changes. First I added
the RTNL mutex wrapper around our updating of the pending, port, and
filter_index bits. Second I added logic so that we cannot use a port that
has a pending deletion since we need to free the space in hardware before
we can allow software to reuse it.

The second issue addressed is the fact that we were not recording the
actual filter index provided to us by the admin queue. As a result we were
deleting filters that were not associated with the actual filter we wanted
to delete. To fix that I added a filter_index member to the UDP port
tracking structure.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-04-30 09:21:42 -07:00
Paweł Jabłoński
e4062894d5 i40evf: Fix turning TSO, GSO and GRO on after
This patch fixes the problem where each MTU change turns TSO,
GSO and GRO on from off state.

Now when TSO, GSO or GRO is turned off, MTU change does not
turn them on.

Signed-off-by: Paweł Jabłoński <pawel.jablonski@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-04-30 09:19:55 -07:00
Jakub Pawlak
6ee4d32255 i40e: Add advertising 10G LR mode
The advertising 10G LR mode should be possible to set
but in the function i40e_set_link_ksettings() check for this
is missed. This patch adds check for 10000baseLR_Full
flag for 10G modes.

Signed-off-by: Jakub Pawlak <jakub.pawlak@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-04-30 09:16:58 -07:00
Ahmed Abdelsalam
6df93462c2 ipv6: sr: extract the right key values for "seg6_make_flowlabel"
The seg6_make_flowlabel() is used by seg6_do_srh_encap() to compute the
flowlabel from a given skb. It relies on skb_get_hash() which eventually
calls __skb_flow_dissect() to extract the flow_keys struct values from
the skb.

In case of IPv4 traffic, calling seg6_make_flowlabel() after skb_push(),
skb_reset_network_header(), and skb_mac_header_rebuild() will results in
flow_keys struct of all key values set to zero.

This patch calls seg6_make_flowlabel() before resetting the headers of skb
to get the right key values.

Extracted Key values are based on the type inner packet as follows:
1) IPv6 traffic: src_IP, dst_IP, L4 proto, and flowlabel of inner packet.
2) IPv4 traffic: src_IP, dst_IP, L4 proto, src_port, and dst_port
3) L2 traffic: depends on what kind of traffic carried into the L2
frame. IPv6 and IPv4 traffic works as discussed 1) and 2)

Here a hex_dump of struct flow_keys for IPv4 and IPv6 traffic
10.100.1.100: 47302 > 30.0.0.2: 5001
00000000: 14 00 02 00 00 00 00 00 08 00 11 00 00 00 00 00
00000010: 00 00 00 00 00 00 00 00 13 89 b8 c6 1e 00 00 02
00000020: 0a 64 01 64

fc00:a1:a > b2::2
00000000: 28 00 03 00 00 00 00 00 86 dd 11 00 99 f9 02 00
00000010: 00 00 00 00 00 00 00 00 00 00 00 00 00 b2 00 00
00000020: 00 00 00 00 00 00 00 00 00 00 00 02 fc 00 00 a1
00000030: 00 00 00 00 00 00 00 00 00 00 00 0a

Signed-off-by: Ahmed Abdelsalam <amsalam20@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-30 12:13:43 -04:00
Mariusz Stachura
6334f2432f i40e: fix reading LLDP configuration
Previous method for reading LLDP config was based on hard-coded
offsets. It happened to work, because of structured architecture of
the NVM memory. In the new approach, known as FLAT, we need to
calculate the absolute address, instead of using relative values.
Needed defines for memory location were added.

Signed-off-by: Mariusz Stachura <mariusz.stachura@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-04-30 09:12:33 -07:00
Jacob Keller
f5254429e1 i40e/i40evf: cleanup incorrect function doxygen comments
Recent versions of the Linux kernel now warn about incorrect parameter
definitions for function comments. Fix up several function comments to
correctly reflect the current function arguments. This cleans up the
warnings and helps ensure our documentation is accurate.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-04-30 09:09:04 -07:00
YueHaibing
a6a188e489 libcxgb,cxgb4: use __skb_put_zero to simplfy code
use helper __skb_put_zero to replace the pattern of __skb_put() && memset()

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-30 11:53:48 -04:00
William Tu
1baf5ebf89 erspan: auto detect truncated packets.
Currently the truncated bit is set only when the mirrored packet
is larger than mtu.  For certain cases, the packet might already
been truncated before sending to the erspan tunnel.  In this case,
the patch detect whether the IP header's total length is larger
than the actual skb->len.  If true, this indicated that the
mirrored packet is truncated and set the erspan truncate bit.

I tested the patch using bpf_skb_change_tail helper function to
shrink the packet size and send to erspan tunnel.

Reported-by: Xiaoyan Jin <xiaoyanj@vmware.com>
Signed-off-by: William Tu <u9012063@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-30 11:43:45 -04:00
Jia-Ju Bai
04a1e08cc7 i40evf: Replace GFP_ATOMIC with GFP_KERNEL in i40evf_add_vlan
i40evf_add_vlan() is never called in atomic context.

i40evf_add_vlan() is only called by i40evf_vlan_rx_add_vid(),
which is only set as ".ndo_vlan_rx_add_vid" in struct net_device_ops.
".ndo_vlan_rx_add_vid" is not called in atomic context.

Despite never getting called from atomic context,
i40evf_add_vlan() calls kzalloc() with GFP_ATOMIC,
which does not sleep for allocation.
GFP_ATOMIC is not necessary and can be replaced with GFP_KERNEL,
which can sleep and improve the possibility of sucessful allocation.

This is found by a static analysis tool named DCNS written by myself.
And I also manually check it.

Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-04-30 08:12:30 -07:00
David S. Miller
65245d84a4 Merge branch 'r8169-further-improvements'
Heiner Kallweit says:

====================
r8169: further improvements w/o functional change

This series aims at further improving and simplifying the code w/o
any intended functional changes.

Series was tested on: RTL8169sb, RTL8168d, RTL8168e-vl
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-30 09:38:20 -04:00
Heiner Kallweit
4fd48c4ac0 r8169: move common initializations to tp->hw_start
The chip-specific init code includes quite some calls which are
identical for all chips. So move these calls to tp->hw_start().

In addition move rtl_set_rx_max_size() a little to make sure it's
defined before it's used. Unfortunately the diff generated by git
is a little bit hard to read.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-30 09:38:20 -04:00
Heiner Kallweit
82d3ff6dd1 r8169: remove calls to rtl_set_rx_mode
__dev_open() calls the ndo_set_rx_mode callback anyway, so we don't
have to do it here too.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-30 09:38:19 -04:00
Heiner Kallweit
3559d81e76 r8169: simplify rtl_hw_start_8169
Currently done:
- if mac_version in (01, 02, 03, 04)
	RTL_W8(tp, ChipCmd, CmdTxEnb | CmdRxEnb);
- if mac_version in (01, 02, 03, 04)
	rtl_set_rx_tx_config_registers(tp);
- if mac_version not in (01, 02, 03, 04)
	RTL_W8(tp, ChipCmd, CmdTxEnb | CmdRxEnb);
	rtl_set_rx_tx_config_registers(tp);

So we do exactly the same independent of chip version and can simplify
the code.

In addition remove the call to rtl_init_rxcfg(), it's called in
rtl_init_one() already and the set bits are never touched later.
rtl_init_8168/8101 don't include this call either.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-30 09:38:19 -04:00
Heiner Kallweit
12d42c505e r8169: improve handling of CPCMD quirk mask
Both quirk masks are the same, so we can merge them. The quirk mask
includes most bits so it's actually easier to define a mask with
the bits to keep.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-30 09:38:19 -04:00
Heiner Kallweit
0ae0974eb3 r8169: improve CPlusCmd handling
tp->cp_cmd is supposed to reflect the current value of the CplusCmd
register. Several (quite old) changes however directly change this
register w/o updating tp->cp_cmd. Also we have places in the code
reading this register where we could use the cached value.

In addition:
- Properly initialize tp->cmd with the register value.
- In rtl_hw_start_8169 remove one setting of PCIMulRW because it's
  set unconditionally anyway a few lines later.
- In rtl_hw_start_8168 properly mask out the INTT bits before
  setting INTT_1. So far we rely on both bits being zero.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-30 09:38:19 -04:00
Heiner Kallweit
9a3c81fa61 r8169: replace magic number for INTT mask with a constant
Use a proper constant for INTT bit mask.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-30 09:38:19 -04:00
Heiner Kallweit
a3984578bf r8169: improve rtl8169_set_features
__rtl8169_set_features is used in rtl8169_set_features only, so we
can inline it. In addition:
- Remove check (features ^ dev->features), __netdev_update_features
  check's already that requested features differ from current ones.
- Don't mask out unsupported flags, there's no benefit in it.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-30 09:38:19 -04:00
Heiner Kallweit
e66267483e r8169: remove unneeded call to __rtl8169_set_features in rtl_open
RxChkSum and RxVlan aren't touched outside __rtl8169_set_features
(except in probe), so they are always in sync with dev->features.
And the RxConfig flags are set in rtl_set_rx_mode() which is
called via dev_set_rx_mode() from __dev_open().
Therefore we can safely remove this call.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-30 09:38:19 -04:00
Colin Ian King
76c2a96d42 liquidio: fix spelling mistake: "mac_tx_multi_collison" -> "mac_tx_multi_collision"
Trivial fix to spelling mistake in oct_stats_strings text

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-30 09:29:09 -04:00
David S. Miller
dbafb0c488 Merge branch 'liquidio-enhanced-ethtool-set-channels-feature'
Intiyaz Basha says:

====================
liquidio: enhanced ethtool --set-channels feature

For the ethtool --set-channels feature, the liquidio driver currently
accepts max combined value as the queue count configured during driver
load time, where max combined count is the total count of input and output
queues. This limitation is applicable only when SR-IOV is enabled, that
is, when VFs are created for PF. If SR-IOV is not enabled, the driver can
configure max supported (64) queues.

This series of patches are for enhancing driver to accept
max supported queues for ethtool --set-channels.

Changes in V2:
  Only patch #6 was changed to fix these Sparse warnings reported by kbuild
  test robot:
    lio_ethtool.c:848:5: warning: symbol 'lio_23xx_reconfigure_queue_count'
                         was not declared. Should it be static?
    lio_ethtool.c:877:22: warning: incorrect type in assignment (different
                          base types)
    lio_ethtool.c:878:22: warning: incorrect type in assignment (different
                          base types)
    lio_ethtool.c:879:22: warning: incorrect type in assignment (different
                          base types)
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-30 09:26:29 -04:00
Intiyaz Basha
c33c997346 liquidio: enhanced ethtool --set-channels feature
Enhancing driver to accept max supported queues for ethtool --set-channels

Signed-off-by: Intiyaz Basha <intiyaz.basha@cavium.com>
Acked-by: Derek Chickles <derek.chickles@cavium.com>
Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-30 09:26:29 -04:00
Intiyaz Basha
128ea39439 liquidio: Moved common function setup_glists to lio_core.c
Moved common function setup_glists to lio_core.c
and reamed it to lio_setup_glists

Signed-off-by: Intiyaz Basha <intiyaz.basha@cavium.com>
Acked-by: Derek Chickles <derek.chickles@cavium.com>
Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-30 09:26:28 -04:00
Intiyaz Basha
a72b2c8ced liquidio: Moved common definition octnic_gather to octeon_network.h
Moving common definition octnic_gather to octeon_network.h

Signed-off-by: Intiyaz Basha <intiyaz.basha@cavium.com>
Acked-by: Derek Chickles <derek.chickles@cavium.com>
Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-30 09:26:28 -04:00
Intiyaz Basha
fd311f1e75 liquidio: Moved common function delete_glists to lio_core.c
Moved common function delete_glists to lio_core.c
and renamed it to lio_delete_glists

Signed-off-by: Intiyaz Basha <intiyaz.basha@cavium.com>
Acked-by: Derek Chickles <derek.chickles@cavium.com>
Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-30 09:26:28 -04:00
Intiyaz Basha
85a0cd8186 liquidio: Moved common function list_delete_head to octeon_network.h
Moved common function list_delete_head to octeon_network.h
and renamed it to lio_list_delete_head

Signed-off-by: Intiyaz Basha <intiyaz.basha@cavium.com>
Acked-by: Derek Chickles <derek.chickles@cavium.com>
Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-30 09:26:28 -04:00
Intiyaz Basha
592a4cebc2 liquidio: Moved common function if_cfg_callback to lio_core.c
Moved common function if_cfg_callback to lio_core.c
and renamed it to lio_if_cfg_callback.

Signed-off-by: Intiyaz Basha <intiyaz.basha@cavium.com>
Acked-by: Derek Chickles <derek.chickles@cavium.com>
Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-30 09:26:28 -04:00
Florian Fainelli
3ac305c386 net: core: Assert the size of netdev_featres_t
We have about 53 netdev_features_t bits defined and counting, add a
build time check to catch when an u64 type will not be enough and we
will have to convert that to a bitmap. This is done in
register_netdevice() for convenience.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-29 22:50:36 -04:00
David S. Miller
c1b28847f7 Merge branch 'net-cleanup-skb_tx_hash'
Alexander Duyck says:

====================
Clean up users of skb_tx_hash and __skb_tx_hash

I am in the process of doing some work to try and enable macvlan Tx queue
selection without using ndo_select_queue. As a part of that I will likely
need to make changes to skb_tx_hash. As such this is a clean up or refactor
of the two spots where he function has been used. In both cases it didn't
really seem like the function was being used correctly so I have updated
both code paths to not make use of the function.

My current development environment doesn't have an mlx4 or OPA vnic
available so the changes to those have been build tested only.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-29 22:01:33 -04:00
Alexander Duyck
1b837d489e net: Revoke export for __skb_tx_hash, update it to just be static skb_tx_hash
I am dropping the export of __skb_tx_hash as after my patches nobody is
using it outside of the net/core/dev.c file. In addition I am renaming and
repurposing it to just be a static declaration of skb_tx_hash since that
was the only user for it at this point. By doing this the compiler can
inline it into __netdev_pick_tx as that will improve performance.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-29 22:01:33 -04:00
Alexander Duyck
b86629ebd5 mlx4: Don't bother using skb_tx_hash in mlx4_en_select_queue
The code in the fallback path has supported XDP in conjunction with the Tx
traffic classification for TCs for over a year now. So instead of just
calling skb_tx_hash for every packet we are better off using the fallback
since that will record the Tx queue to the socket and then that can be used
instead of having to recompute the hash every time.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-29 22:01:32 -04:00
Alexander Duyck
d80d8d5573 opa_vnic: Just use skb_get_hash instead of skb_tx_hash
This patch is meant to clean up how the opa_vnic is obtaining entropy from
Tx packets.

The code as it was written was claiming to get 16 bits of hash, but from
what I can tell it was only ever actually getting 14 bits as it was limited
to 0 - (2^15 - 1). It then was folding the result to get a 8 bit value for
entropy.

Instead of throwing away all that input I am cutting out the middle man and
instead having the code call skb_get_hash directly and then folding the 32
bit value into a 8 bit value using a pair of shifts and XOR operations.

Execution wise this new approach should provide more entropy and be faster
since we are bypassing the reciprocal multiplication to reduce the 32b
value to 16b and instead just using a shift/XOR combination.

In addition we can drop the unneeded adapter value from the call to get the
entropy since the netdev itself isn't even needed.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-29 22:01:32 -04:00
David S. Miller
f90652841f Merge branch 'lan78xx-fixed-phy'
Raghuram Chary J says:

====================
lan78xx updates along with Fixed phy Support

These series of patches handle few modifications in driver
and adds support for fixed phy.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-29 21:41:01 -04:00
Raghuram Chary J
7670ed7a25 lan78xx: Modify error messages
Modify the error messages when phy registration fails.

Signed-off-by: Raghuram Chary J <raghuramchary.jallipalli@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-29 21:41:01 -04:00