Commit Graph

725380 Commits

Author SHA1 Message Date
Franklin S Cooper Jr
2290aefa2e can: dev: Add support for limiting configured bitrate
Various CAN or CAN-FD IP may be able to run at a faster rate than
what the transceiver the CAN node is connected to. This can lead to
unexpected errors. However, CAN transceivers typically have fixed
limitations and provide no means to discover these limitations at
runtime. Therefore, add support for a can-transceiver node that
can be reused by other CAN peripheral drivers to determine for both
CAN and CAN-FD what the max bitrate that can be used. If the user
tries to configure CAN to pass these maximum bitrates it will throw
an error.

Also add support for reading bitrate_max via the netlink interface.

Reviewed-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Franklin S Cooper Jr <fcooper@ti.com>
[nsekhar@ti.com: fix build error with !CONFIG_OF]
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2018-01-16 15:11:32 +01:00
Franklin S Cooper Jr
54a7fbcc17 dt-bindings: can: can-transceiver: Document new binding
Add documentation to describe usage of the new can-transceiver binding.
This new binding is applicable for any CAN device therefore it exists as
its own document.

Signed-off-by: Franklin S Cooper Jr <fcooper@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2018-01-16 15:11:31 +01:00
David S. Miller
79d891c1bb linux-can-next-for-4.16-20180105
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Merge tag 'linux-can-next-for-4.16-20180105' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next

Marc Kleine-Budde says:

====================
pull-request: can-next 2017-12-01,Re: pull-request: can-next

this is a pull request of 7 patches for net-next/master.

All patches are by me. Patch 6 is for the "can_raw" protocol and add
error checking to the bind() function. All other patches clean up the
coding style and remove unused parameters in various CAN drivers and
infrastructure.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-15 16:13:34 -05:00
David S. Miller
5138eb9b2a Merge branch 'sh_eth-simplify-TSU-initialization'
Sergei Shtylyov says:

====================
sh_eth: simplify TSU initialization

Here's a set of 2 patches against DaveM's 'net-next.git' repo. With those,
I'm somewhat simplifying the TSU init code in the driver probe() method...
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-15 15:09:46 -05:00
Sergei Shtylyov
9662ec1922 sh_eth: get Ether port # only when needed
The dual-port Ether configurations always have a shared TSU to e.g. pass
the packets between those  ports.  With the  TSU init. code gathered under
the single *if*, we now can only get the port # from 'platform_device::id'
only when we actually  need it  (and not recalculate it each time)...

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-15 15:09:46 -05:00
Sergei Shtylyov
3e14c969a4 sh_eth: gather all TSU init code in one place
The  sh_eth_cpu_data::chip_reset() method  always resets using ARSTR and
this register is always located at the start of the  TSU register region.
Therefore, we can  only call  this method if we know TSU is there and thus
simplify  the probing code a  bit...

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-15 15:09:45 -05:00
David S. Miller
d9631c7a5d wireless-drivers-next patches for 4.16
Here are patches which have been accumulating over the holidays and
 after the New Year. Business as usual and nothing special really
 standing out.
 
 But what's noteworthy here is that Larry Finger is stepping down as
 the rtlwifi maintainer. He has been maintaining rtlwifi since it was
 applied back in 2010 in commit 0c8173385e ("rtl8192ce: Add new
 driver") and it has been no easy role trying to juggle between the
 vendor, demanding upstream community and users. So big thank you to
 Larry for all his efforts!
 
 ath10k
 
 * more preparation work for wcn3990 support
 
 * add memory dump to firmware coredump files
 
 wil6210
 
 * support scheduled scan
 
 * support 40-bit DMA addresses
 
 qtnfmac
 
 * support MAC address based access control
 
 * support for radar detection and Channel Availibility Check (CAC)
 
 mwifiex
 
 * firmware coredump for usb devices
 
 rtlwifi
 
 * Larry Finger steps down as the maintainer and Ping-Ke Shih becomes
   the new maintainer
 
 * add debugfs interfaces to dump register and btcoex status, and also
   write registers and h2c
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Merge tag 'wireless-drivers-next-for-davem-2018-01-13' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

Kalle Valo says:

====================
wireless-drivers-next patches for 4.16

Here are patches which have been accumulating over the holidays and
after the New Year. Business as usual and nothing special really
standing out.

But what's noteworthy here is that Larry Finger is stepping down as
the rtlwifi maintainer. He has been maintaining rtlwifi since it was
applied back in 2010 in commit 0c8173385e ("rtl8192ce: Add new
driver") and it has been no easy role trying to juggle between the
vendor, demanding upstream community and users. So big thank you to
Larry for all his efforts!

ath10k

* more preparation work for wcn3990 support

* add memory dump to firmware coredump files

wil6210

* support scheduled scan

* support 40-bit DMA addresses

qtnfmac

* support MAC address based access control

* support for radar detection and Channel Availibility Check (CAC)

mwifiex

* firmware coredump for usb devices

rtlwifi

* Larry Finger steps down as the maintainer and Ping-Ke Shih becomes
  the new maintainer

* add debugfs interfaces to dump register and btcoex status, and also
  write registers and h2c
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-15 14:46:16 -05:00
Linus Walleij
4d5ae32f5e net: ethernet: Add a driver for Gemini gigabit ethernet
The Gemini ethernet has been around for years as an out-of-tree
patch used with the NAS boxen and routers built on StorLink
SL3512 and SL3516, later Storm Semiconductor, later Cortina
Systems. These ASICs are still being deployed and brand new
off-the-shelf systems using it can easily be acquired.

The full name of the IP block is "Net Engine and Gigabit
Ethernet MAC" commonly just called "GMAC".

The hardware block contains a common TCP Offload Enginer (TOE)
that can be used by both MACs. The current driver does not use
it.

Cc: Tobias Waldvogel <tobias.waldvogel@gmail.com>
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-15 14:38:55 -05:00
Linus Walleij
1c2f11466b net: ethernet: Add DT bindings for the Gemini ethernet
This adds the device tree bindings for the Gemini ethernet
controller. It is pretty straight-forward, using standard
bindings and modelling the two child ports as child devices
under the parent ethernet controller device.

Cc: devicetree@vger.kernel.org
Cc: Tobias Waldvogel <tobias.waldvogel@gmail.com>
Cc: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-15 14:38:55 -05:00
Ido Schimmel
6802f3adcb ipv6: Fix build with gcc-4.4.5
Emil reported the following compiler errors:

net/ipv6/route.c: In function `rt6_sync_up`:
net/ipv6/route.c:3586: error: unknown field `nh_flags` specified in initializer
net/ipv6/route.c:3586: warning: missing braces around initializer
net/ipv6/route.c:3586: warning: (near initialization for `arg.<anonymous>`)
net/ipv6/route.c: In function `rt6_sync_down_dev`:
net/ipv6/route.c:3695: error: unknown field `event` specified in initializer
net/ipv6/route.c:3695: warning: missing braces around initializer
net/ipv6/route.c:3695: warning: (near initialization for `arg.<anonymous>`)

Problem is with the named initializers for the anonymous union members.
Fix this by adding curly braces around the initialization.

Fixes: 4c981e28d3 ("ipv6: Prepare to handle multiple netdev events")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reported-by: Emil S Tantilov <emils.tantilov@gmail.com>
Tested-by: Emil S Tantilov <emils.tantilov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-15 14:28:05 -05:00
Jon Maloy
e9a034456a tipc: fix bug during lookup of multicast destination nodes
In commit 232d07b74a ("tipc: improve groupcast scope handling") we
inadvertently broke non-group multicast transmission when changing the
parameter 'domain' to 'scope' in the function
tipc_nametbl_lookup_dst_nodes(). We missed to make the corresponding
change in the calling function, with the result that the lookup always
fails.

A closer anaysis reveals that this parameter is not needed at all.
Non-group multicast is hard coded to use CLUSTER_SCOPE, and in the
current implementation this will be delivered to all matching
destinations except those which are published with NODE_SCOPE on other
nodes. Since such publications never will be visible on the sending node
anyway, it makes no sense to discriminate by scope at all.

We now remove this parameter altogether.

Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-15 14:27:13 -05:00
Kirill Tkhai
273c28bc57 net: Convert atomic_t net::count to refcount_t
Since net could be obtained from RCU lists,
and there is a race with net destruction,
the patch converts net::count to refcount_t.

This provides sanity checks for the cases of
incrementing counter of already dead net,
when maybe_get_net() has to used instead
of get_net().

Drivers: allyesconfig and allmodconfig are OK.

Suggested-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-15 14:23:42 -05:00
Marcelo Ricardo Leitner
594831a8ab sctp: removed unused var from sctp_make_auth
Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Reviewed-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-15 13:59:42 -05:00
Heiner Kallweit
28b2e0d2cd net: phy: remove parameter new_link from phy_mac_interrupt()
I see two issues with parameter new_link:

1. It's not needed. See also phy_interrupt(), works w/o this parameter.
   phy_mac_interrupt sets the state to PHY_CHANGELINK and triggers the
   state machine which then calls phy_read_status. And phy_read_status
   updates the link state.

2. phy_mac_interrupt is used in interrupt context and getting the link
   state may sleep (at least when having to access the PHY registers
   via MDIO bus).

So let's remove it.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-15 13:45:03 -05:00
Jon Maloy
febafc8455 tipc: fix a potental access after delete in tipc_sk_join()
In commit d12d2e12ce "tipc: send out join messages as soon as new
member is discovered") we added a call to the function tipc_group_join()
without considering the case that the preceding tipc_sk_publish() might
have failed, and the group item already deleted.

We fix this by returning from tipc_sk_join() directly after the
failed tipc_sk_publish.

Reported-by: syzbot+e3eeae78ea88b8d6d858@syzkaller.appspotmail.com
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-15 13:43:51 -05:00
David S. Miller
2c76b34898 Merge branch 'dsa-lan9303-check-error-value-from-devm_gpiod_get_optional'
Phil Reid says:

====================
net: dsa: lan9303: check error value from devm_gpiod_get_optional()

Errors need to be prograted back from probe.

Note: I have only compile tested the code as I don't have the hardware.
Egil Hjelmeland <privat@egil-hjelmeland.no> has tested it but I haven't
added at Test-by: wasn't in the standard form. Not sure if that's ok or
not.

Changes from v1:
- rebased on net-next
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-15 13:18:03 -05:00
Phil Reid
f16891326c net: dsa: lan9303: check error value from devm_gpiod_get_optional()
devm_gpiod_get_optional() can return an error in addition to a NULL ptr.
Check for error and propagate that to the probe function. Check return
value in probe. This will now handle EPROBE_DEFER for the reset gpio.

Signed-off-by: Phil Reid <preid@electromag.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-15 13:18:02 -05:00
Phil Reid
a57d476d97 net: dsa: lan9303: make lan9303_handle_reset() a void function
lan9303_handle_reset never returns anything other than success.
So there's not need for it to return an error code.

Signed-off-by: Phil Reid <preid@electromag.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-15 13:18:02 -05:00
Andrew Lunn
9f239fe6a6 net: phy: Have __phy_modify return 0 on success
__phy_modify would return the old value of the register before it was
modified. Thus on success, it does not return 0, but a positive value.
Thus functions using phy_modify, which is a wrapper around
__phy_modify, can start returning > 0 on success, rather than 0. As a
result, breakage has been noticed in various places, where 0 was
assumed.

Code inspection does not find any current location where the return of
the old value is currently used. So have __phy_modify return 0 on
success. When there is a real need for the old value, either a new
accessor can be added, or an additional parameter passed.

Fixes: fea23fb591 ("net: phy: convert read-modify-write to phy_modify()")
Fixes: 2b74e5be17 ("net: phy: add phy_modify() accessor")
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Niklas Cassel <niklas.cassel@axis.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-15 12:49:30 -05:00
David S. Miller
564737f981 Merge branch '10GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue
Jeff Kirsher says:

====================
10GbE Intel Wired LAN Driver Updates 2018-01-12

This series contains updates to ixgbe, fm10k and net core.

Alex updates the driver to remove a duplicate MAC address check and
verifies that we have not run out of resources to configure a MAC rule
in our filter table.  Also do not assume that dev->num_tc was populated
and configured with the driver, since it can be configured via mqprio
without any hardware coordination.  Fixed the recording of stats for
MACVLAN in ixgbe and fm10k instead of recording the receive queue on
MACVLAN offloaded frames.  When handling a MACVLAN offload, we should
be stopping/starting traffic on our own queues instead of the upper
devices transmit queues.  Fixed possible race conditions with the
MACVLAN cleanup with the interface cleanup on shutdown.  With the
recent fixes to ixgbe, we can cap the number of queues regardless of
accel_priv being in use or not, since the actual number of queues are
being reported via real_num_tx_queues.

Tony fixes up the kernel documentation for ixgbe and ixgbevf to resolve
warnings when W=1 is used.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-14 12:25:04 -05:00
David S. Miller
5d498214af Merge branch 'mlxsw-Offload-PRIO-qdisc'
Jiri Pirko says:

====================
mlxsw: Offload PRIO qdisc

Nogah says:

Add an offload support for PRIO qdisc for mlxsw driver.
PRIO qdisc is being offloaded by using ndo_setup_tc. It has three
commands, to set or tune the qdisc, to remove it and to get its stats.

Like RED offloading, offloading this qdisc is not enforced on the driver
and determining its offload state is done in the dump action, when the
stats are being updated.
In the driver, offloading of PRIO is supported as root qdisc only. It
supports only priorities 0-7 (the range that is used by the current static
mapping of DSCP to skb prio and by 1:1 PCP values mapping) and up to 8
bands.

Patches 1-2 offload DSCP to priority mapping in the mlxsw_sp driver.
Patch 3 adds offload support for PRIO qdisc.
Patches 4-5 Add PRIO offload support in the mlxsw_sp driver.

---
v1->v2:
- Patch 1/5:
 - Rewrite patch msg
- Patch 3/5:
 - Send all the qstats in the replace command (and not just backlog)
- Patch 5/5:
 - Align with the changes from 3/5
 - Move backlog to the generic qdisc stats struct
 - Delete extra newline
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-14 12:21:12 -05:00
Nogah Frankel
93d8a4c1b5 mlxsw: spectrum: qdiscs: Support stats for PRIO qdisc
Support basic stats for PRIO qdisc, which includes tx packets and bytes
count, drops count and backlog size. The rest of the stats are irrelevant
for this qdisc offload.
Since backlog is not only incremental but reflecting momentary value, in
case of a qdisc that stops being offloaded but is not destroyed, backlog
value needs to be updated about the un-offloading.
For that reason an unoffload function is being added to the ops struct.

Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Reviewed-by: Yuval Mintz <yuvalm@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-14 12:21:12 -05:00
Nogah Frankel
46a3615be4 mlxsw: spectrum: qdiscs: Support PRIO qdisc offload
Add support for offloading PRIO qdisc as root qdisc.
The support is for up to 8 bands.
Routed packets priority is determined by the DSCP field with the default
translations. Bridged packets priority is determined by the PCP field, if
exist, otherwise it is set to 0.
Since both options have only priorities 0-7, higher priorities mapping are
being ignored.

Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Reviewed-by: Yuval Mintz <yuvalm@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-14 12:21:12 -05:00
Nogah Frankel
7fdb61b44c net: sch: prio: Add offload ability to PRIO qdisc
Add the ability to offload PRIO qdisc by using ndo_setup_tc.
There are three commands for PRIO offloading:
* TC_PRIO_REPLACE: handles set and tune
* TC_PRIO_DESTROY: handles qdisc destroy
* TC_PRIO_STATS: updates the qdiscs counters (given as reference)

Like RED qdisc, the indication of whether PRIO is being offloaded is being
set and updated as part of the dump function. It is so because the driver
could decide to offload or not based on the qdisc parent, which could
change without notifying the qdisc.

Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Reviewed-by: Yuval Mintz <yuvalm@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-14 12:21:11 -05:00
Yuval Mintz
48276a296a mlxsw: spectrum_router: Configure default routing priority
When routing ip packets, the kernel is setting the SKB's priority
based on the tos field of the packet.
Imitate this behavior in the mlxsw router, having the internal
switch priority of a routed packet determined according to its DS
field.

Signed-off-by: Yuval Mintz <yuvalm@mellanox.com>
Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-14 12:21:11 -05:00
Yuval Mintz
ddb362ced1 mlxsw: reg: add rdpm register
Add rdpm definition - router DSCP to priority mapping register.
This register will be utilized later to align the default mapping between
packet DSCP and switch-priority to the kernel's mapping between
packet priority and skb priority.

This is the first non-bit indexed register where the entries are arranged
in descending order, i.e., entry at offset 0 matches configuration for
dscp[63]. As a result, the item's step is converted into a signed variable
to support descending arrays [where step would be negative].

Signed-off-by: Yuval Mintz <yuvalm@mellanox.com>
Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-14 12:21:11 -05:00
David S. Miller
1988c79578 Merge branch 'dsa-mv88e6xxx-ATU-VTU-irq'
Andrew Lunn says:

====================
mv88e6xxx: ATU and VTU interrupts

Both the ATU and VTU of Mavell switches can generate interrupts when
violations occur.  Trap this interrupts and print what violation
occurred.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-14 12:08:45 -05:00
Andrew Lunn
62eb1162ec net: dsa: mv88e6xxx: Decode VTU problem interrupt
When there is a problem with the VTU, an interrupt can be
generated. Trap this interrupt and decode the registers to determine
what the problem was, then log the error.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-14 12:08:45 -05:00
Andrew Lunn
0977644c50 net: dsa: mv88e6xxx: Decode ATU problem interrupt
When there is a problem with the ATU, an interrupt can be
generated. Trap this interrupt and decode the registers to determine
what the problem was, then log the error.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-14 12:08:45 -05:00
Ido Schimmel
3743d88ab4 mlxsw: spectrum_router: Add support for IPv6 non-equal-cost multipath
Since commit eb789980d0 ("mlxsw: spectrum_router: Populate adjacency
entries according to weights") the driver includes support for
non-equal-cost multipath, but IPv4 nexthops were the only user.

Now that the kernel supports weighted IPv6 nexthops, we can extend the
driver to support it as well.

This is done by assigning each nexthop its configured weight, so that it
will be populated accordingly in the device's adjacency table. The
`weight` parameter is also taken into account when comparing nexthop
groups in order not to consolidate non-identical groups.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-14 12:06:15 -05:00
Arnd Bergmann
54f7bf7230 net: netsec: use dma_addr_t for storing dma address
On targets that have different sizes for phys_addr_t and dma_addr_t,
we get a type mismatch error:

drivers/net/ethernet/socionext/netsec.c: In function 'netsec_alloc_dring':
drivers/net/ethernet/socionext/netsec.c:970:9: error: passing argument 3 of 'dma_zalloc_coherent' from incompatible pointer type [-Werror=incompatible-pointer-types]

The code is otherwise correct, as the address is never actually used as a
physical address but only passed into a DMA register.  For consistently,
I'm changing the variable name as well, to clarify that this is a DMA
address.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-14 12:00:23 -05:00
Tony Nguyen
e23cf38fca ixgbevf: Fix kernel-doc format warnings
Recent checks added for formatting kernel-doc comments are causing warnings
if W= is run with a non-zero value.  This patch fixes function comments to
resolve warnings when W=1 is used.

Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-01-12 08:20:47 -08:00
Tony Nguyen
5ba643c6b8 ixgbe: Fix kernel-doc format warnings
Recent checks added for formatting kernel-doc comments are causing warnings
if W= is run with a non-zero value.  This patch fixes function comments to
resolve warnings when W=1 is used.

Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-01-12 08:20:40 -08:00
Alexander Duyck
d584527c70 net: Cap number of queues even with accel_priv
With the recent fix to ixgbe we can cap the number of queues always
regardless of if accel_priv is being used or not since the actual number of
queues are being reported via real_num_tx_queues.

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>
2018-01-12 08:20:36 -08:00
Alexander Duyck
49cfbeb7a9 ixgbe: Fix handling of macvlan Tx offload
This update makes it so that we report the actual number of Tx queues via
real_num_tx_queues but are still restricted to RSS on only the first pool
by setting num_tc equal to 1. Doing this locks us into only having the
ability to setup XPS on the queues in that pool, and only those queues
should be used for transmitting anything other than macvlan traffic.

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>
2018-01-12 08:20:33 -08:00
Alexander Duyck
b5f69ccf67 ixgbe: avoid bringing rings up/down as macvlans are added/removed
This change makes it so that instead of bringing rings up/down for various
we just update the netdev pointer for the Rx ring and set or clear the MAC
filter for the interface. By doing it this way we can avoid a number of
races and issues in the code as things were getting messy with the macvlan
clean-up racing with the interface clean-up to bring the rings down on
shutdown.

With this change we opt to leave the rings owned by the PF interface for
both Tx and Rx and just direct the packets once they are received to the
macvlan netdev.

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>
2018-01-12 08:20:28 -08:00
Alexander Duyck
16be45bca8 ixgbe: Do not manipulate macvlan Tx queues when performing macvlan offload
We should not be stopping/starting the upper devices Tx queues when
handling a macvlan offload. Instead we should be stopping and starting
traffic on our own queues.

In order to prevent us from doing this I am updating the code so that we no
longer change the queue configuration on the upper device, nor do we update
the queue_index on our own device. Instead we can just use the queue index
for our local device and not update the netdev in the case of the transmit
rings.

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>
2018-01-12 08:20:24 -08:00
Alexander Duyck
58918df0e8 ixgbe/fm10k: Record macvlan stats instead of Rx queue for macvlan offloaded rings
We shouldn't be recording the Rx queue on macvlan offloaded frames since
the macvlan is normally brought up as a single queue device, and it will
trigger warnings for RPS if we have recorded queue IDs larger than the
"real_num_rx_queues" value recorded for the device.

Instead we should be recording the macvlan statistics since we are
bypassing the normal macvlan statistics that would have been generated by
the receive path.

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>
2018-01-12 08:20:19 -08:00
Alexander Duyck
0efbf12b95 ixgbe: Don't assume dev->num_tc is equal to hardware TC config
The code throughout ixgbe was assuming that dev->num_tc was populated and
configured with the driver, when in fact this can be configured via mqprio
without any hardware coordination other than restricting us to the real
number of Tx queues we advertise.

Instead of handling things this way we need to keep a local copy of the
number of TCs in use so that we don't accidentally pull in the TC
configuration from mqprio when it is configured in software mode.

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>
2018-01-12 08:20:15 -08:00
Alexander Duyck
a8e87d9f73 ixgbe: Default to 1 pool always being allocated
We might as well configure the limit to default to 1 pool always for the
interface. This accounts for the fact that the PF counts as 1 pool if
SR-IOV is enabled, and in general we are always running in 1 pool mode when
RSS or DCB is enabled as well, though we don't need to actually evaluate
any of the VMDq features in those cases.

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>
2018-01-12 08:20:10 -08:00
Alexander Duyck
4a2512cfdf ixgbe: Assume provided MAC filter has been verified by macvlan
The macvlan driver itself will validate the MAC address that is configured
for a given interface. There is no need for us to verify it again.

Instead we should be checking to verify that we actually allocate the filter
and have not run out of resources to configure a MAC rule in our filter
table.

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>
2018-01-12 08:19:26 -08:00
David S. Miller
6bd39bc3da Merge branch 'hns3-add-some-new-features-and-fix-some-bugs'
Peng Li says:

====================
hns3: add some new features and fix some bugs

This patchset adds 3 ethtool features: get_channels,
get_coalesce and get_coalesce, and fix some bugs.

[patch 1/11] adds ethtool_ops.get_channels (ethtool -l) support
for VF.

[patch 2/11] removes TSO config command from VF driver,
as only main PF can config TSO MSS length according to
hardware.

[patch 3/11 - 4/11] add ethtool_ops {get|set}_coalesce
(ethtool -c/-C) support to PF.
[patch 5/11 - 9/11] fix some bugs related to {get|set}_coalesce.

[patch 10/11 - 11/11] fix the features handling in
hns3_nic_set_features(). Local variable "changed" was defined
to indicates features changed, but was used only for feature
NETIF_F_HW_VLAN_CTAG_RX. Add checking to improve the reliability.

---
Change log:
V1 -> V2:
1, Rewrite the cover letter requested by David Miller.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-12 10:12:33 -05:00
Jian Shen
bd368416c3 net: hns3: check for NULL function pointer in hns3_nic_set_features
It's necessary to check hook whether being defined before
calling, improve the reliability.

Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-12 10:12:33 -05:00
Jian Shen
181d454b72 net: hns3: add feature check when feature changed
Local variable "changed" was defined to indicates features changed,
but was used only for feature NETIF_F_HW_VLAN_CTAG_RX. Add checking
for other features.

Fixes: 052ece6dc1 ("net: hns3: add ethtool related offload command")
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-12 10:12:33 -05:00
Fuyun Liang
11af96a47b net: hns3: add int_gl_idx setup for TX and RX queues
If the int_gl_idx does not be set, the default interrupt coalesce index
is 0. The TX queues and the RX queues will both use the GL0 as the
interrupt coalesce GL switch. But it should be GL1 for TX queues and GL0
for RX queues.

This patch adds the int_gl_idx setup for TX queues and RX queues.

Fixes: 76ad4f0ee7 ("net: hns3: Add support of HNS3 Ethernet Driver for hip08 SoC")
Signed-off-by: Fuyun Liang <liangfuyun1@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-12 10:12:33 -05:00
Fuyun Liang
b81c59e1f7 net: hns3: change the unit of GL value macro
Previously, driver used 2us as the GL unit. The time unit ethtool
command "-c" and "-C" use is 1us, so now the GL unit driver uses
actually is 1us.

This patch changes the unit of GL value macro from
2us to 1us.

Signed-off-by: Fuyun Liang <liangfuyun1@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-12 10:12:32 -05:00
Fuyun Liang
0c8b769b7c net: hns3: remove unused GL setup function
Since the TX GL and the RX GL need to be set separately,
hns3_set_vector_coalesc_gl() has been replaced with
hns3_set_vector_coalesce_rx_gl() and hns3_set_vector_coalesce_tx_gl().

This patch removes hns3_set_vector_coalesc_gl().

Signed-off-by: Fuyun Liang <liangfuyun1@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-12 10:12:32 -05:00
Fuyun Liang
8b1ff1ea2c net: hns3: refactor GL update function
The GL update function uses the max GL value between tx_int_gl and
rx_int_gl to set both new tx_int_gl and new rx_int_gl. Therefore, User
can not enable TX GL self-adaptive or RX GL self-adaptive individually.

This patch refactors the code to update the TX GL and the RX GL
separately, making user can enable TX GL self-adaptive or RX GL
self-adaptive individually.

Signed-off-by: Fuyun Liang <liangfuyun1@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-12 10:12:32 -05:00
Fuyun Liang
5fd4789a98 net: hns3: refactor interrupt coalescing init function
In the hardware, the coalesce configurable registers include GL0, GL1,
GL2. In the driver, the TX queues use the register GL1 and the RX queues
use the register GL0. This function initializes the configuration of the
interrupt coalescing, but does not distinguish between the TX direction
and the RX direction. It will cause some confusion.

This patch refactors the function to initialize the TX GL and the RX GL
separately. And the initialization of related variables also is added to
this patch.

Signed-off-by: Fuyun Liang <liangfuyun1@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-12 10:12:32 -05:00
Fuyun Liang
434776a5fa net: hns3: add ethtool_ops.set_coalesce support to PF
This patch adds ethtool_ops.set_coalesce support to PF.

Signed-off-by: Fuyun Liang <liangfuyun1@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-12 10:12:32 -05:00