As part of the driver unload flow, a PF reset is issued which may still
cause an interrupt to be generated by the device.  Do not clear the
interrupt scheme until the reset is complete and there are no pending
transactions otherwise a hardware error may occur.
Signed-off-by: NBruce Allan <bruce.w.allan@intel.com>
Tested-by: NAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

If DCBx request non-contiguous TCs, then the driver will configure default
traffic class (TC0). This is done to prevent Tx hang since the driver
currently does not support non-contiguous TC.
Signed-off-by: NPaul Greenwalt <paul.greenwalt@intel.com>
Signed-off-by: NTony Nguyen <anthony.l.nguyen@intel.com>
Tested-by: NAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

The Boot Configuration Section Block has been moved to the Preserved Field
Area (PFA) of NVM. Update the NVM reads that involves Boot Configuration
Section.
Signed-off-by: NMd Fahad Iqbal Polash <md.fahad.iqbal.polash@intel.com>
Signed-off-by: NTony Nguyen <anthony.l.nguyen@intel.com>
Tested-by: NAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Implement ethtool -m support to read eeprom data from SFP/QSFP modules.
Signed-off-by: NScott W Taylor <scott.w.taylor@intel.com>
Signed-off-by: NTony Nguyen <anthony.l.nguyen@intel.com>
Tested-by: NAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Added tests for u8/u32 clear value, u8/16 retain value, u16/32 invert value,
u8/u16/u32 preserve value and test for negative offsets.
Signed-off-by: NRoman Mashak <mrv@mojatatu.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The netdevsim object is reused by all the tests, but the resource
tests puts it into a broken state (failed reload in a different
namespace). Make sure it's fixed up at the end of that test
otherwise subsequent tests fail.

Fixes: b74c37fd ("selftests: netdevsim: add tests for devlink reload with resources")
Signed-off-by: NJakub Kicinski <jakub.kicinski@netronome.com>
Acked-by: NJiri Pirko <jiri@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Until now the size of a Rx buffer was artificially limited
to 1536B (which happens to be the default, after reset, hardware
value for a Rx buffer). This approach however leaves unused
memory space for Rx packets, since the driver uses a paged
allocation scheme that reserves half a page for each Rx skb.
There's also the inconvenience that frames around 1536 bytes
can get scattered if the limit is slightly exceeded. This limit
can be exceeded even for standard MTU of 1500B traffic, for common
cases like stacked VLANs, or DSA tags.
To address these issues, let's just compute the buffer size
starting from the upper limit of 2KB (half a page) and
subtract the skb overhead and alignment restrictions.
Signed-off-by: NClaudiu Manoil <claudiu.manoil@nxp.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The function page_shift() is supported after the commit 94ad9338
("mm: introduce page_shift()").

So replace with page_shift() in ehea_is_hugepage() for readability.
Signed-off-by: NYunfeng Ye <yeyunfeng@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This change adds support for xmit_more based on the igb commit 6f19e12f
("igb: flush when in xmit_more mode and under descriptor pressure") and
commit 6b16f9ee ("net: move skb->xmit_more hint to softnet data") that
were made to igb to support this feature. The function netif_xmit_stopped
is called to check whether transmit queue on device is currently unable to
send to determine whether we must write the tail because we can add no
further buffers.

When normal packets and/or xmit_more packets fill up tx_desc, it is
necessary to trigger NIC tx reg.

Following the advice from David Miller and Jakub Kicinski, after the
xmit_more feature is added, the following scenario will occur.

         |
   xmit_more packets
         |
   DMA_MAPPING
         |
   DMA_MAPPING error check
         |
   xmit_more packets already in HW xmit queue
         |

In the above scenario, if DMA_MAPPING error occurrs, the xmit_more packets
already in HW xmit queue will also be dropped. This is different from the
behavior before xmit_more feature. So it is necessary to trigger NIC HW tx
reg in the above scenario.

To the non-xmit_more packets, the above scenario will not occur.

Tested:
  - pktgen (xmit_more packets) SMP x86_64 ->
    Test command:
    ./pktgen_sample03_burst_single_flow.sh ... -b 8 -n 1000000
    Test results:
    Params:
    ...
    burst: 8
    ...
    Result: OK: 12194004(c12188996+d5007) usec, 1000001 (1500byte,0frags)
    82007pps 984Mb/sec (984084000bps) errors: 0

  - iperf (normal packets) SMP x86_64 ->
    Test command:
    Server: iperf -s
    Client: iperf -c serverip
    Result:
    TCP window size: 85.0 KByte (default)
    ------------------------------------------------------------
    [ ID] Interval       Transfer     Bandwidth
    [  3]  0.0-10.0 sec  1.10 GBytes   942 Mbits/sec

CC: Joe Jin <joe.jin@oracle.com>
CC: JUNXIAO_BI <junxiao.bi@oracle.com>
Reported-and-tested-by: NNan san <nan.1986san@gmail.com>
Signed-off-by: NZhu Yanjun <yanjun.zhu@oracle.com>
Acked-by: NJakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Jakub Kicinski says:

====================
netdevsim: fix tests and netdevsim

The first patch fixes a merge which brought back some dead
code. Next a tiny re-write of the main test using netdevsim
aims to ease debugging.
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Recent changes to netdevsim moved creating and destroying
devices from netlink to sysfs. The sysfs writes have been
implemented as direct writes, without shelling out. This
is faster, but leaves no trace in the logs. Add explicit
logs to make debugging possible.
Signed-off-by: NJakub Kicinski <jakub.kicinski@netronome.com>
Acked-by: NDaniel Borkmann <daniel@iogearbox.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Looks like the port adding loop makes a re-appearance on net-next
after net was merged back into it (even though it doesn't feature
in the merge diff).

The ports are already added in nsim_dev_create() so when we try
to add them again get EEXIST, and see:

netdevsim: probe of netdevsim0 failed with error -17

in the logs. When we remove the loop again the nsim_dev_probe()
and nsim_dev_remove() become a wrapper of nsim_dev_create() and
nsim_dev_destroy(). Remove this layer of indirection.

Fixes: d31e9558 ("Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net")
Signed-off-by: NJakub Kicinski <jakub.kicinski@netronome.com>
Acked-by: NJiri Pirko <jiri@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Merge tag 'wireless-drivers-next-2019-11-05' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

Kalle Valo says:

====================
wireless-drivers-next patches for 5.5

First set of patches for 5.5. The most active driver here clearly is
rtw88, lots of patches for it. More quiet on other drivers, smaller
fixes and cleanups all over.

This pull request also has a trivial conflict, the report and example
resolution here:

https://lkml.kernel.org/r/20191031111242.50ab1eca@canb.auug.org.au

Major changes:

rtw88

* add deep power save support

* add mac80211 software tx queue (wake_tx_queue) support

* enable hardware rate control

* add TX-AMSDU support

* add NL80211_EXT_FEATURE_CAN_REPLACE_PTK0 support

* add power tracking support

* add 802.11ac beamformee support

* add set_bitrate_mask support

* add phy_info debugfs to show Tx/Rx physical status

* add RFE type 3 support for 8822b

ath10k

* add support for hardware rfkill on devices where firmware supports it

rtl8xxxu

* add bluetooth co-existence support for single antenna

iwlwifi

* Revamp the debugging infrastructure
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Simon Wunderlich says:

====================
This feature/cleanup patchset includes the following patches:

 - bump version strings, by Simon Wunderlich

 - Simplify batadv_v_ogm_aggr_list_free using skb_queue_purge,
   by Christophe Jaillet

 - Replace aggr_list_lock with lock free skb handlers,
   by Christophe Jaillet

 - explicitly mark fallthrough cases, by Sven Eckelmann

 - Drop lockdep.h include from soft-interface.c, by Sven Eckelmann
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

ThinkPad Thunderbolt 3 Dock Gen 2 is another docking station that uses
RTL8153 based USB ethernet.

The device supports macpassthru, but it failed to pass the test of -AD,
-BND and -BD. Simply bypass these tests since the device supports this
feature just fine.

Also the ACPI objects have some differences between Dell's and Lenovo's,
so make those ACPI infos no longer hardcoded.

BugLink: https://bugs.launchpad.net/bugs/1827961Signed-off-by: NKai-Heng Feng <kai.heng.feng@canonical.com>
Acked-by: NHayes Wang <hayeswang@realtek.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch implements reset_prepare and reset_done, which are used
for handling FLR.
Signed-off-by: NVishal Kulkarni <vishal@chelsio.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Sudarsana Reddy Kalluru says:

====================
bnx2x/cnic: Enable Multi-Cos.

The patch series enables Multi-cos feature in the driver. This require
the use of new firmware 7.13.15.0.
Patch (1) adds driver changes to use new FW.
Patches (2) - (3) enables multi-cos functionality in bnx2x driver.
Patch (4) adds cnic driver change as required by new FW.
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The new FW has added extra validation for HSI version to
make FW backward compatible with older VF drivers. Hence
set fp_hsi_ver to Fast Path HSI version of the FW in use.
Signed-off-by: NManish Rangankar <mrangankar@marvell.com>
Signed-off-by: NNilesh Javali <njavali@marvell.com>
Signed-off-by: NManish Chopra <manishc@marvell.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

PF driver doesn't enable tx-switching for all cos queues/clients,
which causes packets drop from PF to VF. Fix this by enabling
tx-switching on all cos queues/clients.
Signed-off-by: NManish Chopra <manishc@marvell.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

FW version 7.13.15 addresses the issue in Multi-cos implementation.
This patch re-enables the Multi-Cos support in the driver.

Fixes: d1f0b5dc ("bnx2x: Disable multi-cos feature.")
Signed-off-by: NSudarsana Reddy Kalluru <skalluru@marvell.com>
Signed-off-by: NAriel Elior <aelior@marvell.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Commit 97a27d6d6e8d "bnx2x: Add FW 7.13.15.0" added said .bin FW to
linux-firmware tree. This FW addresses few important issues in the earlier
FW release.
This patch incorporates FW 7.13.15.0 in the bnx2x driver.
Signed-off-by: NSudarsana Reddy Kalluru <skalluru@marvell.com>
Signed-off-by: NAriel Elior <aelior@marvell.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Pass a phy_interface_t to of_get_phy_mode(), by changing the type of
phy_mode in the device structure. This then requires that
zmii_attach() is also changes, since it takes a pointer to phy_mode.

Fixes: 0c65b2b9 ("net: of_get_phy_mode: Change API to solve int/unit warnings")
Reported-by: Nkbuild test robot <lkp@intel.com>
Reported-by: NStephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Eric Dumazet says:

====================
net_sched: convert packet counters to 64bit

This small patch series add 64bit support for packet counts.

Fact that the counters were still 32bit has been quite painful.

tc -s -d qd sh dev eth0 | head -3
qdisc mq 1: root
 Sent 665706335338 bytes 6526520373 pkt (dropped 2441, overlimits 0 requeues 91)
 backlog 0b 0p requeues 91
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Now the kernel uses 64bit packet counters in scheduler layer,
we want to export these counters to user space.

Instead risking breaking user space by adding fields
to struct gnet_stats_basic, add a new TCA_STATS_PKT64.
Signed-off-by: NEric Dumazet <edumazet@google.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

After this change, qdisc packet counter is no longer
a 32bit quantity. We still export 32bit values to user.
Signed-off-by: NEric Dumazet <edumazet@google.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

gnet_stats_basic_packed was really meant to be private kernel structure.

If this proves to be a problem, we will have to rename the in-kernel
version.
Signed-off-by: NEric Dumazet <edumazet@google.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Andrew Lunn says:

====================
mv88e6xxx ATU occupancy as devlink resource

This patchset add generic support to DSA for devlink resources. The
Marvell switch Address Translation Unit occupancy is then exported as
a resource. In order to do this, the number of ATU entries is added to
the per switch info structure. Helpers are added, and then the
resource itself is then added.
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The ATU can report how many entries it contains. It does this per bin,
there being 4 bins in total. Export the ATU as a devlink resource, and
provide a method the needed callback to get the resource occupancy.
Signed-off-by: NAndrew Lunn <andrew@lunn.ch>
Acked-by: NJiri Pirko <jiri@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

When retrieving the ATU statistics, and ATU get next has to be
performed to trigger the ATU to collect the statistics. Export a
helper from global1_atu to perform this.
Signed-off-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add helpers to set/get the ATU statistics register.
Signed-off-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

For each supported switch, add an entry to the info structure for the
number of MACs which can be stored in the ATU. This will later be used
to export the ATU as a devlink resource, and indicate its occupancy,
how full the ATU is.
Signed-off-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add wrappers around the devlink resource API, so that DSA drivers can
register and unregister devlink resources.
Signed-off-by: NAndrew Lunn <andrew@lunn.ch>
Acked-by: NJiri Pirko <jiri@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Florian Fainelli says:

====================
net: dsa: bcm_sf2: Add support for optional reset controller line

This patch series definest the optional reset controller line for the
BCM7445/BCM7278 integrated Ethernet switches and updates the driver to
drive that reset line in lieu of the internal watchdog based reset since
it does not work on BCM7278.

Changes in v2:
- make the reset_control_assert() conditional to BCM7278 in the remove
  function as well
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Grab an optional and exclusive reset controller line for the switch and
manage it during probe/remove functions accordingly. For 7278 devices we
change bcm_sf2_sw_rst() to use the reset controller line since the
WATCHDOG_CTRL register does not reset the switch contrary to stated
documentation.
Signed-off-by: NFlorian Fainelli <f.fainelli@gmail.com>
Reviewed-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The BCM7445/BCM7278 built-in Ethernet switch have an optional reset line
to the SoC's reset controller, describe the 'resets' and 'reset-names'
properties as optional.
Reviewed-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The openvswitch was supporting a MPLS label depth of 1 in the ingress
direction though the userspace OVS supports a max depth of 3 labels.
This change enables openvswitch module to support a max depth of
3 labels in the ingress.
Signed-off-by: NMartin Varghese <martin.varghese@nokia.com>
Acked-by: NPravin B Shelar <pshelar@ovn.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The macros HCLGE_MPF_ENBALE and HCLGEVF_MPF_ENBALE are defined but never
used.  I was going to fix the spelling mistake "ENBALE" -> "ENABLE" but
found these macros are not used, so they can be removed.
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Use 'skb_queue_purge()' instead of re-implementing it.
Signed-off-by: NChristophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: NStefano Garzarella <sgarzare@redhat.com>
Reviewed-by: NStefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The order in which the ports are deleted from the list and freed and the
call to dsa_switch_remove() is done is reversed, which leads to an
use after free condition. Reverse the two: first tear down the ports and
switch from the fabric, then free the ports associated with that switch
fabric.

Fixes: 05f294a8 ("net: dsa: allocate ports on touch")
Signed-off-by: NFlorian Fainelli <f.fainelli@gmail.com>
Reviewed-by: NVivien Didelot <vivien.didelot@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NRoman Mashak <mrv@mojatatu.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>