platform/kernel/linux-starfive.git
5 years agoice: update Tx context struct
Ashish Shah [Tue, 3 Sep 2019 08:31:04 +0000 (01:31 -0700)]
ice: update Tx context struct

Add internal usage flag, bit 91 as described in spec.
Update width of internal queue state to 122 also as described in spec.

Signed-off-by: Ashish Shah <ashish.n.shah@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
5 years agoice: Report VF link status with opcode to get resources
Akeem G Abodunrin [Tue, 3 Sep 2019 08:31:03 +0000 (01:31 -0700)]
ice: Report VF link status with opcode to get resources

This patch changes how and when the driver report link status, instead of
waiting till the call to enable queues for VF, we should report link
status earlier with opcode to get VF resources - So as to avoid reporting
erroneous information, especially when queues have not been configured.
In addition, we can also make a call to get and report link status change
after when queue is enabled, at least to report netdev or PHY link status.
This is in accordance to how link speed is being reported for PF...

Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
5 years agoice: Check for DCB capability before initializing DCB
Anirudh Venkataramanan [Tue, 3 Sep 2019 08:31:02 +0000 (01:31 -0700)]
ice: Check for DCB capability before initializing DCB

Check the ICE_FLAG_DCB_CAPABLE before calling ice_init_pf_dcb.

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
5 years agoice: report link down for VF when PF's queues are not enabled
Lukasz Czapnik [Tue, 3 Sep 2019 08:31:01 +0000 (01:31 -0700)]
ice: report link down for VF when PF's queues are not enabled

This is port of a fix from i40e commit 2ad1274fa35a ("i40e: don't
report link up for a VF who hasn't enabled queues")

Older VF drivers do not respond well to receiving a link
up notification before queues are enabled. This can cause their state
machine to think that it is safe to send traffic. This results in a Tx
hang on the VF.

Record whether the PF has actually enabled queues for the VF. When
reporting link status, always report link down if the queues aren't
enabled. In this way, the VF driver will never receive a link up
notification until after its queues are enabled.

Signed-off-by: Lukasz Czapnik <lukasz.czapnik@intel.com>
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>
5 years agoice: Reliably reset VFs
Mitch Williams [Tue, 3 Sep 2019 08:31:00 +0000 (01:31 -0700)]
ice: Reliably reset VFs

When a PFR (or bigger reset) occurs, the device clears the VF_MBX_ARQLEN
register for all VFs. But if a VFR is triggered by a VF, the device does
NOT clear this register, and the VF driver will never see the reset.

When this happens, the VF driver will eventually timeout and attempt
recovery, and usually it will be successful. But this makes resets take
a long time and there are occasional failures.

We cannot just blithely clear this register on every reset; this has
been shown to cause synchronization problems when a PFR is triggered
with a large number of VFs.

Fix this by clearing VF_MBX_ARQLEN when the reset source is not PFR.
GlobR will trigger PFR, so this test catches that occurrence as well.

Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
5 years agoice: change work limit to a constant
Jesse Brandeburg [Thu, 8 Aug 2019 14:39:38 +0000 (07:39 -0700)]
ice: change work limit to a constant

The driver has supported a transmit work limit
that was configurable from ethtool for a long time, but
there are no good use cases for having it be a variable
that can be changed at run time.  In addition, this
variable was noted to be causing performance overhead
due to cache misses.

Just remove the variable and let the code use a constant
so that the functionality is maintained (a limit on the
number of transmits that will be cleaned in any one call
to the clean routines) without the cache miss.

Removes code, removes a variable, removes testing surface. Yay.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
5 years agoice: small efficiency fixes
Jesse Brandeburg [Thu, 8 Aug 2019 14:39:37 +0000 (07:39 -0700)]
ice: small efficiency fixes

Add a small bit of efficiency to the code by adding a
prefetch of the port_info structure in order to help
avoid a cache miss a little later on in execution.

Also add an unlikely statement to a branch which
generally will never happen in normal operation.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
5 years agoice: move code closer together
Jesse Brandeburg [Thu, 8 Aug 2019 14:39:36 +0000 (07:39 -0700)]
ice: move code closer together

This is a simple patch to move the assignment to a local variable
closer to the site where the local variable is used.  This
can help readability and also maybe performance, although the
performance enhancement is really dependent upon the compiler.

No functional change.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
5 years agoice: clean up arguments
Jesse Brandeburg [Thu, 8 Aug 2019 14:39:35 +0000 (07:39 -0700)]
ice: clean up arguments

There are a couple of functions that don't need two arguments
passed in when the second argument already had access to
the pointer pointed to by the first.

Remove the unnecessary arguments.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
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>
5 years agoice: Check root pointer for validity
Anirudh Venkataramanan [Thu, 8 Aug 2019 14:39:34 +0000 (07:39 -0700)]
ice: Check root pointer for validity

ice_sched_get_tc_node uses pi->root without checking for NULL. Add a
check to prevent NULL pointer dereference.

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
5 years agoice: Add ice_get_main_vsi to get PF/main VSI
Anirudh Venkataramanan [Thu, 8 Aug 2019 14:39:33 +0000 (07:39 -0700)]
ice: Add ice_get_main_vsi to get PF/main VSI

There are multiple places where we currently use ice_find_vsi_by_type
to get the PF (a.k.a. main) VSI. The PF VSI by definition is always
the first element in the pf->vsi array (i.e. pf->vsi[0]). So instead
add and use a new helper function ice_get_main_vsi, which just returns
pf->vsi[0].

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
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>
5 years agoice: Update fields in ice_vsi_set_num_qs when reconfiguring
Brett Creeley [Thu, 8 Aug 2019 14:39:31 +0000 (07:39 -0700)]
ice: Update fields in ice_vsi_set_num_qs when reconfiguring

Currently when vsi->req_txqs or vsi->req_rxqs are set we don't
correctly set the number of vsi->num_q_vectors. Fix this by
setting the number of queue vectors based on the max
between the vsi->alloc_txqs and vsi->alloc_rxqs.

Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
5 years agor8152: adjust the settings of ups flags
Hayes Wang [Thu, 5 Sep 2019 02:46:20 +0000 (10:46 +0800)]
r8152: adjust the settings of ups flags

The UPS feature only works for runtime suspend, so UPS flags only
need to be set before enabling runtime suspend. Therefore, I create
a struct to record relative information, and use it before runtime
suspend.

All chips could record such information, even though not all of
them support the feature of UPS. Then, some functions could be
combined.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: hns: Move static keyword to the front of declaration
Krzysztof Wilczynski [Wed, 4 Sep 2019 14:21:16 +0000 (16:21 +0200)]
net: hns: Move static keyword to the front of declaration

Move the static keyword to the front of declaration of g_dsaf_mode_match,
and resolve the following compiler warning that can be seen when building
with warnings enabled (W=1):

drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c:27:1: warning:
  ‘static’ is not at beginning of declaration [-Wold-style-declaration]

Signed-off-by: Krzysztof Wilczynski <kw@linux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: qed: Move static keyword to the front of declaration
Krzysztof Wilczynski [Wed, 4 Sep 2019 14:17:30 +0000 (16:17 +0200)]
net: qed: Move static keyword to the front of declaration

Move the static keyword to the front of declaration of iwarp_state_names,
and resolve the following compiler warning that can be seen when building
with warnings enabled (W=1):

drivers/net/ethernet/qlogic/qed/qed_iwarp.c:385:1: warning:
  ‘static’ is not at beginning of declaration [-Wold-style-declaration]

Also, resolve checkpatch.pl script warning:

WARNING: static const char * array should probably be
  static const char * const

Signed-off-by: Krzysztof Wilczynski <kw@linux.com>
Acked-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agopppoatm: use %*ph to print small buffer
Andy Shevchenko [Wed, 4 Sep 2019 17:44:59 +0000 (20:44 +0300)]
pppoatm: use %*ph to print small buffer

Use %*ph format to print small buffer as hex string.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoMerge branch 'Fix-GMII2RGMII-private-field'
David S. Miller [Thu, 5 Sep 2019 10:32:06 +0000 (12:32 +0200)]
Merge branch 'Fix-GMII2RGMII-private-field'

Harini Katakam says:

====================
Fix GMII2RGMII private field

Fix the usage of external phy's priv field by gmii2rgmii driver.

Based on net-next.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: phy: gmii2rgmii: Dont use priv field in phy device
Harini Katakam [Wed, 4 Sep 2019 14:00:21 +0000 (19:30 +0530)]
net: phy: gmii2rgmii: Dont use priv field in phy device

Use set/get drv data in phydev's mdio device instead. Phy device priv
field maybe used by the external phy driver and should not be
overwritten.

Signed-off-by: Harini Katakam <harini.katakam@xilinx.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoinclude: mdio: Add driver data helpers
Harini Katakam [Wed, 4 Sep 2019 14:00:20 +0000 (19:30 +0530)]
include: mdio: Add driver data helpers

Add set/get drv_data helpers for mdio device.

Signed-off-by: Harini Katakam <harini.katakam@xilinx.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoMerge branch 'gianfar-some-assorted-cleanup'
David S. Miller [Thu, 5 Sep 2019 10:28:15 +0000 (12:28 +0200)]
Merge branch 'gianfar-some-assorted-cleanup'

Arseny Solokha says:

====================
gianfar: some assorted cleanup

This is a cleanup series for the gianfar Ethernet driver, following up a
discussion in [1]. It is intended to precede a conversion of gianfar from
PHYLIB to PHYLINK API, which will be submitted later in its version 2.
However, it won't make a conversion cleaner, except for the last patch in
this series. Obviously this series is not intended for -stable.

The first patch looks super controversial to me, as it moves lots of code
around for the sole purpose of getting rid of static forward declarations
in two translation units. On the other hand, this change is purely
mechanical and cannot do any harm other than cluttering git blame output.
I can prepare an alternative patch for only swapping adjacent functions
around, if necessary.

The second patch is a trivial follow-up to the first one, making functions
that are only called from the same translation unit static.

The third patch removes some now unused macro and structure definitions
from gianfar.h, slipped away from various cleanups in the past.

The fourth patch, also suggested in [1], makes the driver consistently use
PHY connection type value obtained from a Device Tree node, instead of
ignoring it and using the one auto-detected by MAC, when connecting to PHY.
Obviously a value has to be specified correctly in DT source, or omitted
altogether, in which case the driver will fall back to auto-detection. When
querying a DT node, the driver will also take both applicable properties
into account by making a proper API call instead of open-coding the lookup
half-way correctly.

[1] https://lore.kernel.org/netdev/CA+h21hruqt6nGG5ksDSwrGH_w5GtGF4fjAMCWJne7QJrjusERQ@mail.gmail.com/
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agogianfar: use DT more consistently when selecting PHY connection type
Arseny Solokha [Wed, 4 Sep 2019 13:52:22 +0000 (20:52 +0700)]
gianfar: use DT more consistently when selecting PHY connection type

Historically, gianfar only used phy-connection-type DT property when
connected to PHY in the rgmii-id mode. It ignored the property otherwise,
relying on the connection type auto-detection carried out by MAC and
providing that reconstructed mode to of_phy_connect(). It also did not
consider alternative phy-mode property at all.

Make the driver properly query DT node for PHY connection type first and
use an obtained value if it was specified there. Otherwise, if a particular
DT relies on connection type auto-detection, fall back to reconstructing
the value from MAC registers, as before.

Signed-off-by: Arseny Solokha <asolokha@kb.kras.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agogianfar: cleanup gianfar.h
Arseny Solokha [Wed, 4 Sep 2019 13:52:21 +0000 (20:52 +0700)]
gianfar: cleanup gianfar.h

Remove now unused macro and structure definitions from gianfar.h that have
accumulated there over time.

Signed-off-by: Arseny Solokha <asolokha@kb.kras.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agogianfar: make five functions static
Arseny Solokha [Wed, 4 Sep 2019 13:52:20 +0000 (20:52 +0700)]
gianfar: make five functions static

Make functions that do not have callers outside the translation unit they
are defined in static.

Signed-off-by: Arseny Solokha <asolokha@kb.kras.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agogianfar: remove forward declarations
Arseny Solokha [Wed, 4 Sep 2019 13:52:19 +0000 (20:52 +0700)]
gianfar: remove forward declarations

Remove forward declarations of various static functions located in two
driver implementation files and rearrange the corresponding definitions
accordingly.

This patch only introduces mechanical changes, namely it removes forward
declarations and moves function definitions around; it does not change any
functionality.

Signed-off-by: Arseny Solokha <asolokha@kb.kras.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoMerge branch 'stmmac-next'
David S. Miller [Thu, 5 Sep 2019 10:19:55 +0000 (12:19 +0200)]
Merge branch 'stmmac-next'

Jose Abreu says:

====================
net: stmmac: Improvements for -next

Couple of improvements for -next tree. More info in commit logs.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: stmmac: selftests: Add Jumbo Frame tests
Jose Abreu [Wed, 4 Sep 2019 13:17:05 +0000 (15:17 +0200)]
net: stmmac: selftests: Add Jumbo Frame tests

Add a test to validate the Jumbo Frame support in stmmac in single
channel and multichannel mode.

Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: stmmac: xgmac: Enable RX Jumbo frame support
Jose Abreu [Wed, 4 Sep 2019 13:17:04 +0000 (15:17 +0200)]
net: stmmac: xgmac: Enable RX Jumbo frame support

We are already doing it by default in the TX path so we can also enable
Jumbo Frame support in the RX path independently of MTU value.

Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: stmmac: Correctly assing MAX MTU in XGMAC cores case
Jose Abreu [Wed, 4 Sep 2019 13:17:03 +0000 (15:17 +0200)]
net: stmmac: Correctly assing MAX MTU in XGMAC cores case

Maximum MTU for XGMAC cores is 16k thus the check for presence of XGMAC
shall be done first in order to assign correct value.

Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: stmmac: xgmac: Correct RAVSEL field interpretation
Jose Abreu [Wed, 4 Sep 2019 13:17:02 +0000 (15:17 +0200)]
net: stmmac: xgmac: Correct RAVSEL field interpretation

RAVSEL means that only RX side is available for AVB features. As we use
both TX and RX features we need to check if RAVSEL is selected and
disable AVB if only RX side is available.

Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: stmmac: ethtool: Let user configure TX coalesce without RIWT
Jose Abreu [Wed, 4 Sep 2019 13:17:01 +0000 (15:17 +0200)]
net: stmmac: ethtool: Let user configure TX coalesce without RIWT

When RX Watchdog is disabled its currently not possible to configure TX
coalesce settings. Let user configure it anyway.

Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: stmmac: Only consider RX error when HW Timestamping is not enabled
Jose Abreu [Wed, 4 Sep 2019 13:17:00 +0000 (15:17 +0200)]
net: stmmac: Only consider RX error when HW Timestamping is not enabled

Only consider that we have an error when HW Timestamping is not enabled
as this can give false positives due to the fact the RX Timestamping in
XGMAC and GMAC cores comes from context descriptors.

Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: stmmac: selftests: Implement the ARP Offload test
Jose Abreu [Wed, 4 Sep 2019 13:16:59 +0000 (15:16 +0200)]
net: stmmac: selftests: Implement the ARP Offload test

Implement a test for ARP Offload feature.

Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: stmmac: xgmac: Implement ARP Offload
Jose Abreu [Wed, 4 Sep 2019 13:16:58 +0000 (15:16 +0200)]
net: stmmac: xgmac: Implement ARP Offload

Implement the ARP Offload feature in XGMAC cores.

Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: stmmac: selftests: Add selftest for L3/L4 Filters
Jose Abreu [Wed, 4 Sep 2019 13:16:57 +0000 (15:16 +0200)]
net: stmmac: selftests: Add selftest for L3/L4 Filters

Adds the selftests for L3 and L4 filters with DA/SA/DP/SP support.

Changes from v1:
- Reduce stack usage (kbuild test robot)

Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: stmmac: Implement L3/L4 Filters using TC Flower
Jose Abreu [Wed, 4 Sep 2019 13:16:56 +0000 (15:16 +0200)]
net: stmmac: Implement L3/L4 Filters using TC Flower

Implement filters for Layer 3 and Layer 4 using TC Flower API. Add the
corresponding callbacks in XGMAC core.

Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: stmmac: Do not return error code in TC Initialization
Jose Abreu [Wed, 4 Sep 2019 13:16:55 +0000 (15:16 +0200)]
net: stmmac: Do not return error code in TC Initialization

As we can still use the remaining TC callbacks, e.g. CBS. We should not
fail in the initialization only because RX Parser is not available.

Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: stmmac: xgmac: Add RBU handling in DMA interrupt
Jose Abreu [Wed, 4 Sep 2019 13:16:54 +0000 (15:16 +0200)]
net: stmmac: xgmac: Add RBU handling in DMA interrupt

Add the handling of Receive Buffer Unavailable interrupt in the DMA
handler of XGMAC cores.

Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: stmmac: selftests: Return proper error code to userspace
Jose Abreu [Wed, 4 Sep 2019 13:16:53 +0000 (15:16 +0200)]
net: stmmac: selftests: Return proper error code to userspace

We can do better than just return 1 to userspace. Lets return a proper
Linux error code.

Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoMerge tag 'linux-can-next-for-5.4-20190904' of git://git.kernel.org/pub/scm/linux...
David S. Miller [Thu, 5 Sep 2019 10:17:50 +0000 (12:17 +0200)]
Merge tag 'linux-can-next-for-5.4-20190904' of git://git./linux/kernel/git/mkl/linux-can-next

Marc Kleine-Budde says:

====================
pull-request: can-next 2019-09-04 j1939

this is a pull request for net-next/master consisting of 21 patches.

the first 12 patches are by me and target the CAN core infrastructure.
They clean up the names of variables , structs and struct members,
convert can_rx_register() to use max() instead of open coding it and
remove unneeded code from the can_pernet_exit() callback.

The next three patches are also by me and they introduce and make use of
the CAN midlayer private structure. It is used to hold protocol specific
per device data structures.

The next patch is by Oleksij Rempel, switches the
&net->can.rcvlists_lock from a spin_lock() to a spin_lock_bh(), so that
it can be used from NAPI (soft IRQ) context.

The next 4 patches are by Kurt Van Dijck, he first updates his email
address via mailmap and then extends sockaddr_can to include j1939
members.

The final patch is the collective effort of many entities (The j1939
authors: Oliver Hartkopp, Bastian Stender, Elenita Hinds, kbuild test
robot, Kurt Van Dijck, Maxime Jayat, Robin van der Gracht, Oleksij
Rempel, Marc Kleine-Budde). It adds support of SAE J1939 protocol to the
CAN networking stack.

SAE J1939 is the vehicle bus recommended practice used for communication
and diagnostics among vehicle components. Originating in the car and
heavy-duty truck industry in the United States, it is now widely used in
other parts of the world.

P.S.: This pull request doesn't invalidate my last pull request:
      "pull-request: can-next 2019-09-03".
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agorocker: add missing init_net check in FIB notifier
Jiri Pirko [Wed, 4 Sep 2019 07:40:47 +0000 (09:40 +0200)]
rocker: add missing init_net check in FIB notifier

Take only FIB events that are happening in init_net into account. No other
namespaces are supported.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoMerge branch 'net-kzfree'
David S. Miller [Thu, 5 Sep 2019 10:06:04 +0000 (12:06 +0200)]
Merge branch 'net-kzfree'

zhong jiang says:

====================
net: Use kzfree() directly

With the help of Coccinelle. We find some place to replace.

@@
expression M, S;
@@

- memset(M, 0, S);
- kfree(M);
+ kzfree(M);
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: mpoa: Use kzfree rather than its implementation.
zhong jiang [Wed, 4 Sep 2019 02:39:12 +0000 (10:39 +0800)]
net: mpoa: Use kzfree rather than its implementation.

Use kzfree instead of memset() + kfree().

Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agosunrpc: Use kzfree rather than its implementation.
zhong jiang [Wed, 4 Sep 2019 02:39:11 +0000 (10:39 +0800)]
sunrpc: Use kzfree rather than its implementation.

Use kzfree instead of memset() + kfree().

Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoixgbe: Use kzfree() rather than its implementation.
zhong jiang [Wed, 4 Sep 2019 02:39:10 +0000 (10:39 +0800)]
ixgbe: Use kzfree() rather than its implementation.

Use kzfree() instead of memset() + kfree().

Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoMerge tag 'linux-can-next-for-5.4-20190903' of git://git.kernel.org/pub/scm/linux...
David S. Miller [Thu, 5 Sep 2019 07:57:31 +0000 (09:57 +0200)]
Merge tag 'linux-can-next-for-5.4-20190903' of git://git./linux/kernel/git/mkl/linux-can-next

Marc Kleine-Budde says:

====================
pull-request: can-next 2019-09-03

this is a pull request for net-next/master consisting of 15 patches.

The first patch is by Christer Beskow, targets the kvaser_pciefd driver
and fixes the PWM generator's frequency.

The next three patches are by Dan Murphy, the tcan4x5x is updated to use
a proper interrupts/interrupt-parent DT binding to specify the devices
IRQ line. Further the unneeded wake ups of the device is removed from
the driver.

A patch by me for the mcp25xx driver removes the deprecated board file
setup example. Three patches by Andy Shevchenko simplify clock handling,
update the driver from OF to device property API and simplify the
mcp251x_can_suspend() function.

The remaining 7 patches are by me and clean up checkpatch warnings in
the generic CAN device infrastructure.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agovsock/virtio: a better comment on credit update
Michael S. Tsirkin [Tue, 3 Sep 2019 07:38:16 +0000 (03:38 -0400)]
vsock/virtio: a better comment on credit update

The comment we have is just repeating what the code does.
Include the *reason* for the condition instead.

Cc: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoMerge branch 'net-tls-minor-cleanups'
David S. Miller [Thu, 5 Sep 2019 07:49:49 +0000 (09:49 +0200)]
Merge branch 'net-tls-minor-cleanups'

Jakub Kicinski says:

====================
net/tls: minor cleanups

This set is a grab bag of TLS cleanups accumulated in my tree
in an attempt to avoid merge problems with net. Nothing stands
out. First patch dedups context information. Next control path
locking is very slightly optimized. Fourth patch cleans up
ugly #ifdefs.
====================

Reviewed-by: Boris Pismenny <borisp@mellanox.com>
Reviewed-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet/tls: dedup the record cleanup
Jakub Kicinski [Tue, 3 Sep 2019 04:31:06 +0000 (21:31 -0700)]
net/tls: dedup the record cleanup

If retransmit record hint fall into the cleanup window we will
free it by just walking the list. No need to duplicate the code.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet/tls: clean up the number of #ifdefs for CONFIG_TLS_DEVICE
Jakub Kicinski [Tue, 3 Sep 2019 04:31:05 +0000 (21:31 -0700)]
net/tls: clean up the number of #ifdefs for CONFIG_TLS_DEVICE

TLS code has a number of #ifdefs which make the code a little
harder to follow. Recent fixes removed the ifdef around the
TLS_HW define, so we can switch to the often used pattern
of defining tls_device functions as empty static inlines
in the header when CONFIG_TLS_DEVICE=n.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet/tls: narrow down the critical area of device_offload_lock
Jakub Kicinski [Tue, 3 Sep 2019 04:31:04 +0000 (21:31 -0700)]
net/tls: narrow down the critical area of device_offload_lock

On setsockopt path we need to hold device_offload_lock from
the moment we check netdev is up until the context is fully
ready to be added to the tls_device_list.

No need to hold it around the get_netdev_for_sock().
Change the code and remove the confusing comment.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet/tls: don't jump to return
Jakub Kicinski [Tue, 3 Sep 2019 04:31:03 +0000 (21:31 -0700)]
net/tls: don't jump to return

Reusing parts of error path for normal exit will make
next commit harder to read, untangle the two.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet/tls: use the full sk_proto pointer
Jakub Kicinski [Tue, 3 Sep 2019 04:31:02 +0000 (21:31 -0700)]
net/tls: use the full sk_proto pointer

Since we already have the pointer to the full original sk_proto
stored use that instead of storing all individual callback
pointers as well.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoConvert usage of IN_MULTICAST to ipv4_is_multicast
Dave Taht [Mon, 2 Sep 2019 23:29:36 +0000 (16:29 -0700)]
Convert usage of IN_MULTICAST to ipv4_is_multicast

IN_MULTICAST's primary intent is as a uapi macro.

Elsewhere in the kernel we use ipv4_is_multicast consistently.

This patch unifies linux's multicast checks to use that function
rather than this macro.

Signed-off-by: Dave Taht <dave.taht@gmail.com>
Reviewed-by: Toke Høiland-Jørgensen <toke@toke.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet/sched: cbs: remove redundant assignment to variable port_rate
Colin Ian King [Mon, 2 Sep 2019 18:26:37 +0000 (19:26 +0100)]
net/sched: cbs: remove redundant assignment to variable port_rate

Variable port_rate is being initialized with a value that is never read
and is being re-assigned a little later on. The assignment is redundant
and hence can be removed.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoMerge branch 'ionic-Add-ionic-driver'
David S. Miller [Thu, 5 Sep 2019 07:24:44 +0000 (09:24 +0200)]
Merge branch 'ionic-Add-ionic-driver'

Shannon Nelson says:

====================
ionic: Add ionic driver

This is a patch series that adds the ionic driver, supporting the Pensando
ethernet device.

In this initial patchset we implement basic transmit and receive.  Later
patchsets will add more advanced features.

Our thanks to Saeed Mahameed, David Miller, Andrew Lunn, Michal Kubecek,
Jacub Kicinski, Jiri Pirko, Yunsheng Lin, and the ever present kbuild
test robots for their comments and suggestions.

New in v7:
 - stop Tx queue if no descriptor space left after a Tx
 - return ETIMEDOUT if the module data can't be copied out safely
 - remove unnecessary synchronize_irq() before free_irq()
 - use eth_prepare_mac_addr_change() and eth_commit_mac_addr_change() helpers
 - propagate error out of ionic_dl_info_get()

New in v6:
 - added a new patch with devlink info tags for ASIC and general FW
 - use the new devlink info tags in the driver
 - fixed up TxRx cleanup on setup failure
 - allow for possible 0 address from dma mapping of Tx buffers
 - remove a few more unnecessary debugfs error checks
 - use innocuous hardcoded strings in the identify message
 - removed a couple of unused functions and definitions
 - fix a leak in the error handling of port_info setup
 - changed from BUILD_BUG_ON() to static_assert()

New in v5:
 - code reorganized for more sane layout, with a side benefit of getting
   rid of a "defined but not used" complaint after patch 5
 - added "ionic_" prefix to struct definitions and fixed up remaining
   reverse christmas tree formatting (I think I got them all...)
 - ndo_open and ndo_stop reworked for better error recovery
 - interrupt coalescing enabled at driver start
 - unnecessary log messaging removed from events
 - double copy added in the module prom read to assure a clean copy
 - added BQL counting
 - fixed a TSO unmap issue found in testing
 - generalize a bit-flag wait with timeout
 - added devlink into earlier code and dropped patch 19

New in v4:
 - use devlink struct alloc for ionic device specific struct
 - add support for devlink_port
 - fixup devlink fixed vs running version usage
 - use bitmap_copy() instead of memcpy() for link_ksettings
 - don't bother to zero out the advertising bits before copying
   in the support bits
 - drop unknown xcvr types (will be expanded on later)
 - flap the connection to force auto-negotiation
 - use is_power_of_2() rather than open code
 - simplify set/get_pauseparam use of pause->autoneg
 - add a couple comments about NIC status data updated in DMA spaces

New in v3:
 - use le32_to_cpu() on queue_count[] values in debugfs
 - dma_free_coherent() can handle NULL pointers
 - remove unused SS_TEST from ethtool handlers
 - one more case of stop the tx ring if there is no room
 - remove a couple of stray // comments

New in v2:
 - removed debugfs error checking and cut down on debugfs use
 - remove redundant bounds checking on incoming values for mtu and ethtool
 - don't alloc rx_filter memory until the match type has been checked
 - free the ionic struct on remove
 - simplified link_up and netif_carrier_ok comparison
 - put stats into ethtool -S, out of debugfs
 - moved dev_cmd and dev_info dumping to ethtool -d, out of debugfs
 - added devlink support
 - used kernel's rss init routines rather than open code
 - set the Kbuild dependant on 64BIT
 - cut down on some unnecessary log messaging
 - cleaned up ionic_get_link_ksettings
 - cleaned up other little code bits here and there
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoionic: Add coalesce and other features
Shannon Nelson [Tue, 3 Sep 2019 22:28:21 +0000 (15:28 -0700)]
ionic: Add coalesce and other features

Interrupt coalescing, tunable copybreak value, and
tx timeout.

Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoionic: Add RSS support
Shannon Nelson [Tue, 3 Sep 2019 22:28:20 +0000 (15:28 -0700)]
ionic: Add RSS support

Add code to manipulate through ethtool the RSS configuration
used by the NIC.

Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoionic: Add driver stats
Shannon Nelson [Tue, 3 Sep 2019 22:28:19 +0000 (15:28 -0700)]
ionic: Add driver stats

Add in the detailed statistics for ethtool -S that the driver
keeps as it processes packets.  Display of the additional
debug statistics can be enabled through the ethtool priv-flags
feature.

Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoionic: Add netdev-event handling
Shannon Nelson [Tue, 3 Sep 2019 22:28:18 +0000 (15:28 -0700)]
ionic: Add netdev-event handling

When the netdev gets a new name from userland, pass that name
down to the NIC for internal tracking.

Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoionic: Add Tx and Rx handling
Shannon Nelson [Tue, 3 Sep 2019 22:28:17 +0000 (15:28 -0700)]
ionic: Add Tx and Rx handling

Add both the Tx and Rx queue setup and handling.  The related
stats display comes later.  Instead of using the generic napi
routines used by the slow-path commands, the Tx and Rx paths
are simplified and inlined in one file in order to get better
compiler optimizations.

Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoionic: Add initial ethtool support
Shannon Nelson [Tue, 3 Sep 2019 22:28:16 +0000 (15:28 -0700)]
ionic: Add initial ethtool support

Add in the basic ethtool callbacks for device information
and control.

Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoionic: Add async link status check and basic stats
Shannon Nelson [Tue, 3 Sep 2019 22:28:15 +0000 (15:28 -0700)]
ionic: Add async link status check and basic stats

Add code to handle the link status event, and wire up the
basic netdev hardware stats.

Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoionic: Add Rx filter and rx_mode ndo support
Shannon Nelson [Tue, 3 Sep 2019 22:28:14 +0000 (15:28 -0700)]
ionic: Add Rx filter and rx_mode ndo support

Add the Rx filtering and rx_mode NDO callbacks.  Also add
the deferred work thread handling needed to manage the filter
requests outside of the netif_addr_lock spinlock.

Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoionic: Add management of rx filters
Shannon Nelson [Tue, 3 Sep 2019 22:28:13 +0000 (15:28 -0700)]
ionic: Add management of rx filters

Set up the infrastructure for managing Rx filters.  We can't ask the
hardware for what filters it has, so we keep a local list of filters
that we've pushed into the HW.

Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoionic: Add the basic NDO callbacks for netdev support
Shannon Nelson [Tue, 3 Sep 2019 22:28:12 +0000 (15:28 -0700)]
ionic: Add the basic NDO callbacks for netdev support

Set up the initial NDO structure and callbacks for netdev
to use, and register the netdev.  This will allow us to do
a few basic operations on the device, but no traffic yet.

Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoionic: Add notifyq support
Shannon Nelson [Tue, 3 Sep 2019 22:28:11 +0000 (15:28 -0700)]
ionic: Add notifyq support

The AdminQ is fine for sending messages and requests to the NIC,
but we also need to have events published from the NIC to the
driver.  The NotifyQ handles this for us, using the same interrupt
as AdminQ.

Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoionic: Add adminq action
Shannon Nelson [Tue, 3 Sep 2019 22:28:10 +0000 (15:28 -0700)]
ionic: Add adminq action

Add AdminQ specific message requests and completion handling.

Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoionic: Add basic adminq support
Shannon Nelson [Tue, 3 Sep 2019 22:28:09 +0000 (15:28 -0700)]
ionic: Add basic adminq support

Most of the NIC configuration happens through the AdminQ message
queue.  NAPI is used for basic interrupt handling and message
queue management.  These routines are set up to be shared among
different types of queues when used in slow-path handling.

Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoionic: Add interrupts and doorbells
Shannon Nelson [Tue, 3 Sep 2019 22:28:08 +0000 (15:28 -0700)]
ionic: Add interrupts and doorbells

The ionic interrupt model is based on interrupt control blocks
accessed through the PCI BAR.  Doorbell registers are used by
the driver to signal to the NIC that requests are waiting on
the message queues.  Interrupts are used by the NIC to signal
to the driver that answers are waiting on the completion queues.

Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoionic: Add basic lif support
Shannon Nelson [Tue, 3 Sep 2019 22:28:07 +0000 (15:28 -0700)]
ionic: Add basic lif support

The LIF is the Logical Interface, which represents the external
connections.  The NIC can multiplex many LIFs to a single port,
but in most setups, LIF0 is the primary control for the port.

Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoionic: Add port management commands
Shannon Nelson [Tue, 3 Sep 2019 22:28:06 +0000 (15:28 -0700)]
ionic: Add port management commands

The port management commands apply to the physical port
associated with the PCI device, which might be shared among
several logical interfaces.

Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoionic: Add hardware init and device commands
Shannon Nelson [Tue, 3 Sep 2019 22:28:05 +0000 (15:28 -0700)]
ionic: Add hardware init and device commands

The ionic device has a small set of PCI registers, including a
device control and data space, and a large set of message
commands.

Also adds new DEVLINK_INFO_VERSION_GENERIC tags for
ASIC_ID, ASIC_REV, and FW.

Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoionic: Add basic framework for IONIC Network device driver
Shannon Nelson [Tue, 3 Sep 2019 22:28:04 +0000 (15:28 -0700)]
ionic: Add basic framework for IONIC Network device driver

This patch adds a basic driver framework for the Pensando IONIC
network device.  There is no functionality right now other than
the ability to load and unload.

Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agodevlink: Add new info version tags for ASIC and FW
Shannon Nelson [Tue, 3 Sep 2019 22:28:03 +0000 (15:28 -0700)]
devlink: Add new info version tags for ASIC and FW

The current tag set is still rather small and needs a couple
more tags to help with ASIC identification and to have a
more generic FW version.

Cc: Jiri Pirko <jiri@resnulli.us>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoMerge branch 'net-dsa-mt7530-PHYLINK-and-port-5'
David S. Miller [Wed, 4 Sep 2019 22:28:23 +0000 (00:28 +0200)]
Merge branch 'net-dsa-mt7530-PHYLINK-and-port-5'

René van Dorst says:

====================
net: dsa: mt7530: Convert to PHYLINK and add support for port 5

1. net: dsa: mt7530: Convert to PHYLINK API
   This patch converts mt7530 to PHYLINK API.
2. dt-bindings: net: dsa: mt7530: Add support for port 5
3. net: dsa: mt7530: Add support for port 5
   These 2 patches adding support for port 5 of the switch.

v2->v3:
 * Removed 'status = "okay"' lines in patch #2
 * Change a port 5 setup message in a debug message in patch #3
 * Added ack-by and tested-by tags
v1->v2:
 * Mostly phylink improvements after review.
rfc -> v1:
 * Mostly phylink improvements after review.
 * Drop phy isolation patches. Adds no value for now.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: dsa: mt7530: Add support for port 5
René van Dorst [Mon, 2 Sep 2019 13:02:26 +0000 (15:02 +0200)]
net: dsa: mt7530: Add support for port 5

Adding support for port 5.

Port 5 can muxed/interface to:
- internal 5th GMAC of the switch; can be used as 2nd CPU port or as
  extra port with an external phy for a 6th ethernet port.
- internal PHY of port 0 or 4; Used in most applications so that port 0
  or 4 is the WAN port and interfaces with the 2nd GMAC of the SOC.

Signed-off-by: René van Dorst <opensource@vdorst.com>
Tested-by: Frank Wunderlich <frank-w@public-files.de>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agodt-bindings: net: dsa: mt7530: Add support for port 5
René van Dorst [Mon, 2 Sep 2019 13:02:25 +0000 (15:02 +0200)]
dt-bindings: net: dsa: mt7530: Add support for port 5

MT7530 port 5 has many modes/configurations.
Update the documentation how to use port 5.

Signed-off-by: René van Dorst <opensource@vdorst.com>
Cc: devicetree@vger.kernel.org
Cc: Rob Herring <robh@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: dsa: mt7530: Convert to PHYLINK API
René van Dorst [Mon, 2 Sep 2019 13:02:24 +0000 (15:02 +0200)]
net: dsa: mt7530: Convert to PHYLINK API

Convert mt7530 to PHYLINK API

Signed-off-by: René van Dorst <opensource@vdorst.com>
Tested-by: Frank Wunderlich <frank-w@public-files.de>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agor8152: modify rtl8152_set_speed function
Hayes Wang [Mon, 2 Sep 2019 11:52:28 +0000 (19:52 +0800)]
r8152: modify rtl8152_set_speed function

First, for AUTONEG_DISABLE, we only need to modify MII_BMCR.

Second, add advertising parameter for rtl8152_set_speed(). Add
RTL_ADVERTISED_xxx for advertising parameter of rtl8152_set_speed().
Then, the advertising settings from ethtool could be saved.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoMerge branch 'dpaa2-eth-Add-new-statistics-counters'
David S. Miller [Wed, 4 Sep 2019 22:24:06 +0000 (00:24 +0200)]
Merge branch 'dpaa2-eth-Add-new-statistics-counters'

Ioana Radulescu says:

====================
dpaa2-eth: Add new statistics counters

Recent firmware versions offer access to more DPNI statistics
counters. Add the relevant ones to ethtool interface stats.

Also we can now make use of a new counter for in flight egress frames
to avoid sleeping an arbitrary amount of time in the ndo_stop routine.

v2: in patch 2/3, treat separately the error case for unsupported
statistics pages
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agodpaa2-eth: Poll Tx pending frames counter on if down
Ioana Radulescu [Mon, 2 Sep 2019 10:23:19 +0000 (13:23 +0300)]
dpaa2-eth: Poll Tx pending frames counter on if down

Starting with firmware version MC10.18.0, a new counter for in flight
Tx frames is offered. Use it when bringing down the interface to
determine when all pending Tx frames have been processed by hardware
instead of sleeping a fixed amount of time.

Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agodpaa2-eth: Add new DPNI statistics counters
Ioana Radulescu [Mon, 2 Sep 2019 10:23:18 +0000 (13:23 +0300)]
dpaa2-eth: Add new DPNI statistics counters

Recent firmware versions expose more  DPNI counters.
Export relevant ones via ethtool -S.

Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agodpaa2-eth: Minor refactoring in ethtool stats
Ioana Radulescu [Mon, 2 Sep 2019 10:23:17 +0000 (13:23 +0300)]
dpaa2-eth: Minor refactoring in ethtool stats

As we prepare to read more pages from the DPNI stat counters,
reorganize the code a bit to make it easier to extend.

Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agocan: add support of SAE J1939 protocol
The j1939 authors [Mon, 8 Oct 2018 09:48:36 +0000 (11:48 +0200)]
can: add support of SAE J1939 protocol

SAE J1939 is the vehicle bus recommended practice used for communication
and diagnostics among vehicle components. Originating in the car and
heavy-duty truck industry in the United States, it is now widely used in
other parts of the world.

J1939, ISO 11783 and NMEA 2000 all share the same high level protocol.
SAE J1939 can be considered the replacement for the older SAE J1708 and
SAE J1587 specifications.

Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Bastian Stender <bst@pengutronix.de>
Signed-off-by: Elenita Hinds <ecathinds@gmail.com>
Signed-off-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Kurt Van Dijck <dev.kurt@vandijck-laurijssen.be>
Signed-off-by: Maxime Jayat <maxime.jayat@mobile-devices.fr>
Signed-off-by: Robin van der Gracht <robin@protonic.nl>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
5 years agocan: extend sockaddr_can to include j1939 members
Kurt Van Dijck [Mon, 8 Oct 2018 09:48:35 +0000 (11:48 +0200)]
can: extend sockaddr_can to include j1939 members

This patch prepares struct sockaddr_can for SAE J1939.

Signed-off-by: Kurt Van Dijck <dev.kurt@vandijck-laurijssen.be>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
5 years agocan: add socket type for CAN_J1939
Kurt Van Dijck [Mon, 8 Oct 2018 09:48:34 +0000 (11:48 +0200)]
can: add socket type for CAN_J1939

This patch is a preparation for SAE J1939 and adds CAN_J1939
socket type.

Signed-off-by: Kurt Van Dijck <dev.kurt@vandijck-laurijssen.be>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
5 years agocan: introduce CAN_REQUIRED_SIZE macro
Kurt Van Dijck [Mon, 8 Oct 2018 09:48:33 +0000 (11:48 +0200)]
can: introduce CAN_REQUIRED_SIZE macro

The size of this structure will be increased with J1939 support. To stay
binary compatible, the CAN_REQUIRED_SIZE macro is introduced for
existing CAN protocols.

Signed-off-by: Kurt Van Dijck <dev.kurt@vandijck-laurijssen.be>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
5 years agomailmap: update email address
Kurt Van Dijck [Mon, 8 Oct 2018 09:48:32 +0000 (11:48 +0200)]
mailmap: update email address

This commit replaces my company's email address with a stable private
address.

Signed-off-by: Kurt Van Dijck <dev.kurt@vandijck-laurijssen.be>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
5 years agocan: af_can: use spin_lock_bh() for &net->can.rcvlists_lock
Oleksij Rempel [Tue, 30 Oct 2018 08:00:34 +0000 (09:00 +0100)]
can: af_can: use spin_lock_bh() for &net->can.rcvlists_lock

The can_rx_unregister() can be called from NAPI (soft IRQ) context, at least
by j1939 stack. This leads to potential dead lock with &net->can.rcvlists_lock
called from can_rx_register:
===============================================================================
 WARNING: inconsistent lock state
 4.19.0-20181029-1-g3e67f95ba0d3 #3 Not tainted
 --------------------------------
 inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage.
 testj1939/224 [HC0[0]:SC1[1]:HE1:SE0] takes:
 1ad0fda3 (&(&net->can.rcvlists_lock)->rlock){+.?.}, at: can_rx_unregister+0x4c/0x1ac
 {SOFTIRQ-ON-W} state was registered at:
   lock_acquire+0xd0/0x1f4
   _raw_spin_lock+0x30/0x40
   can_rx_register+0x5c/0x14c
   j1939_netdev_start+0xdc/0x1f8
   j1939_sk_bind+0x18c/0x1c8
   __sys_bind+0x70/0xb0
   sys_bind+0x10/0x14
   ret_fast_syscall+0x0/0x28
   0xbedc9b64
 irq event stamp: 2440
 hardirqs last  enabled at (2440): [<c01302c0>] __local_bh_enable_ip+0xac/0x184
 hardirqs last disabled at (2439): [<c0130274>] __local_bh_enable_ip+0x60/0x184
 softirqs last  enabled at (2412): [<c08b0bf4>] release_sock+0x84/0xa4
 softirqs last disabled at (2415): [<c013055c>] irq_exit+0x100/0x1b0

 other info that might help us debug this:
  Possible unsafe locking scenario:

        CPU0
        ----
   lock(&(&net->can.rcvlists_lock)->rlock);
   <Interrupt>
     lock(&(&net->can.rcvlists_lock)->rlock);

  *** DEADLOCK ***

 2 locks held by testj1939/224:
  #0: 168eb13b (rcu_read_lock){....}, at: netif_receive_skb_internal+0x3c/0x350
  #1: 168eb13b (rcu_read_lock){....}, at: can_receive+0x88/0x1c0
===============================================================================

To avoid this situation, we should use spin_lock_bh() instead of spin_lock().

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
5 years agocan: af_can: remove NULL-ptr checks from users of can_dev_rcv_lists_find()
Marc Kleine-Budde [Mon, 8 Oct 2018 07:02:40 +0000 (09:02 +0200)]
can: af_can: remove NULL-ptr checks from users of can_dev_rcv_lists_find()

Since using the "struct can_ml_priv" for the per device "struct
dev_rcv_lists" the call can_dev_rcv_lists_find() cannot fail anymore.
This patch simplifies af_can by removing the NULL pointer checks from
the dev_rcv_lists returned by can_dev_rcv_lists_find().

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
5 years agocan: make use of preallocated can_ml_priv for per device struct can_dev_rcv_lists
Marc Kleine-Budde [Mon, 8 Oct 2018 07:02:39 +0000 (09:02 +0200)]
can: make use of preallocated can_ml_priv for per device struct can_dev_rcv_lists

This patch removes the old method of allocating the per device protocol
specific memory via a netdevice_notifier. This had the drawback, that
the allocation can fail, leading to a lot of null pointer checks in the
code. This also makes the live cycle management of this memory quite
complicated.

This patch switches from the allocating the struct can_dev_rcv_lists in
a NETDEV_REGISTER call to using the dev->ml_priv, which is allocated by
the driver since the previous patch.

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
5 years agocan: introduce CAN midlayer private and allocate it automatically
Marc Kleine-Budde [Mon, 8 Oct 2018 07:02:38 +0000 (09:02 +0200)]
can: introduce CAN midlayer private and allocate it automatically

This patch introduces the CAN midlayer private structure ("struct
can_ml_priv") which should be used to hold protocol specific per device
data structures. For now it's only member is "struct can_dev_rcv_lists".

The CAN midlayer private is allocated via alloc_netdev()'s private and
assigned to "struct net_device::ml_priv" during device creation. This is
done transparently for CAN drivers using alloc_candev(). The slcan, vcan
and vxcan drivers which are not using alloc_candev() have been adopted
manually. The memory layout of the netdev_priv allocated via
alloc_candev() will looke like this:

  +-------------------------+
  | driver's priv           |
  +-------------------------+
  | struct can_ml_priv      |
  +-------------------------+
  | array of struct sk_buff |
  +-------------------------+

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
5 years agocan: af_can: can_pernet_exit(): no need to iterate over and cleanup registered CAN...
Marc Kleine-Budde [Mon, 8 Oct 2018 07:02:37 +0000 (09:02 +0200)]
can: af_can: can_pernet_exit(): no need to iterate over and cleanup registered CAN devices

The networking core takes care and unregisters every network device in
a namespace before calling the can_pernet_exit() hook. This patch
removes the unneeded cleanup.

Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Suggested-by: Kirill Tkhai <ktkhai@virtuozzo.com>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
5 years agocan: af_can: can_rx_register(): use max() instead of open coding it
Marc Kleine-Budde [Mon, 8 Oct 2018 07:02:36 +0000 (09:02 +0200)]
can: af_can: can_rx_register(): use max() instead of open coding it

This patch replaces an open coded max by the proper kernel define max().

Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
5 years agocan: af_can: give variable holding the CAN receiver and the receiver list a sensible...
Marc Kleine-Budde [Mon, 8 Oct 2018 07:02:35 +0000 (09:02 +0200)]
can: af_can: give variable holding the CAN receiver and the receiver list a sensible name

This patch gives the variables holding the CAN receiver and the receiver
list a better name by renaming them from "r to "rcv" and "rl" to
"recv_list".

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
5 years agocan: af_can: rename find_dev_rcv_lists() to can_dev_rcv_lists_find()
Marc Kleine-Budde [Mon, 8 Oct 2018 07:02:34 +0000 (09:02 +0200)]
can: af_can: rename find_dev_rcv_lists() to can_dev_rcv_lists_find()

This patch add the commonly used prefix "can_" to the find_dev_rcv_lists()
function and moves the "find" to the end, as the function returns a struct
can_dev_rcv_list. This improves the overall readability of the code.

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
5 years agocan: af_can: rename find_rcv_list() to can_rcv_list_find()
Marc Kleine-Budde [Mon, 8 Oct 2018 07:02:33 +0000 (09:02 +0200)]
can: af_can: rename find_rcv_list() to can_rcv_list_find()

This patch add the commonly used prefix "can_" to the find_rcv_list()
function and add the "find" to the end, as the function returns a struct
rcv_list. This improves the overall readability of the code.

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
5 years agocan: proc: give variable holding the CAN per device receive lists a sensible name
Marc Kleine-Budde [Mon, 8 Oct 2018 07:02:32 +0000 (09:02 +0200)]
can: proc: give variable holding the CAN per device receive lists a sensible name

This patch gives the variables holding the CAN per device receive filter lists
a better name by renaming them from "d" to "dev_rcv_lists".

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
5 years agocan: af_can: give variable holding the CAN per device receive lists a sensible name
Marc Kleine-Budde [Mon, 8 Oct 2018 07:02:31 +0000 (09:02 +0200)]
can: af_can: give variable holding the CAN per device receive lists a sensible name

This patch gives the variables holding the CAN receive filter lists a
better name by renaming them from "d" to "dev_rcv_lists".

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
5 years agocan: netns: remove "can_" prefix from members struct netns_can
Marc Kleine-Budde [Mon, 8 Oct 2018 07:02:30 +0000 (09:02 +0200)]
can: netns: remove "can_" prefix from members struct netns_can

This patch improves the code reability by removing the redundant "can_"
prefix from the members of struct netns_can (as the struct netns_can itself
is the member "can" of the struct net.)

The conversion is done with:

sed -i \
-e "s/struct can_dev_rcv_lists \*can_rx_alldev_list;/struct can_dev_rcv_lists *rx_alldev_list;/" \
-e "s/spinlock_t can_rcvlists_lock;/spinlock_t rcvlists_lock;/" \
-e "s/struct timer_list can_stattimer;/struct timer_list stattimer; /" \
-e "s/can\.can_rx_alldev_list/can.rx_alldev_list/g" \
-e "s/can\.can_rcvlists_lock/can.rcvlists_lock/g" \
-e "s/can\.can_stattimer/can.stattimer/g" \
include/net/netns/can.h \
net/can/*.[ch]

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>