Commit Graph

936899 Commits

Author SHA1 Message Date
Tom Parkin 52016e259b l2tp: don't export tunnel and session free functions
Tunnel and session instances are reference counted, and shouldn't be
directly freed by pseudowire code.

Rather than exporting l2tp_tunnel_free and l2tp_session_free, make them
private to l2tp_core.c, and export the refcount functions instead.

In order to do this, the refcount functions cannot be declared as
inline.  Since the codepaths which take and drop tunnel and session
references are not directly in the datapath this shouldn't cause
performance issues.

Signed-off-by: Tom Parkin <tparkin@katalix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-30 16:45:31 -07:00
Tom Parkin b2aecfe8e4 l2tp: don't export __l2tp_session_unhash
When __l2tp_session_unhash was first added it was used outside of
l2tp_core.c, but that's no longer the case.

As such, there's no longer a need to export the function.  Make it
private inside l2tp_core.c, and relocate it to avoid having to declare
the function prototype in l2tp_core.h.

Since the function is no longer used outside l2tp_core.c, remove the
"__" prefix since we don't need to indicate anything special about its
expected use to callers.

Signed-off-by: Tom Parkin <tparkin@katalix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-30 16:45:31 -07:00
Jian Yang d323942535 selftests: txtimestamp: add flag for timestamp validation tolerance.
The txtimestamp selftest sets a fixed 500us tolerance. This value was
arrived at experimentally. Some platforms have higher variances. Make
this adjustable by adding the following flag:

-t N: tolerance (usec) for timestamp validation.

Signed-off-by: Jian Yang <jianyang@google.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-30 16:38:51 -07:00
David S. Miller 3c2d19cb8d Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next
Steffen Klassert says:

====================
pull request (net-next): ipsec-next 2020-07-30

Please note that I did the first time now --no-ff merges
of my testing branch into the master branch to include
the [PATCH 0/n] message of a patchset. Please let me
know if this is desirable, or if I should do it any
different.

1) Introduce a oseq-may-wrap flag to disable anti-replay
   protection for manually distributed ICVs as suggested
   in RFC 4303. From Petr Vaněk.

2) Patchset to fully support IPCOMP for vti4, vti6 and
   xfrm interfaces. From Xin Long.

3) Switch from a linear list to a hash list for xfrm interface
   lookups. From Eyal Birger.

4) Fixes to not register one xfrm(6)_tunnel object twice.
   From Xin Long.

5) Fix two compile errors that were introduced with the
   IPCOMP support for vti and xfrm interfaces.
   Also from Xin Long.

6) Make the policy hold queue work with VTI. This was
   forgotten when VTI was implemented.

Please pull or let me know if there are problems.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-30 14:39:31 -07:00
Miaohe Lin 8698fb64cc igb: use eth_zero_addr() to clear mac address
Use eth_zero_addr() to clear mac address instead of memset().

Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-07-30 11:41:45 -07:00
Miaohe Lin 935f73bd51 ixgbe: use eth_zero_addr() to clear mac address
Use eth_zero_addr() to clear mac address instead of memset().

Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-07-30 11:40:08 -07:00
Alexander A. Klimov 09a071f52b Documentation: intel: Replace HTTP links with HTTPS ones
Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.

Deterministic algorithm:
For each file:
  If not .svg:
    For each line:
      If doesn't contain `\bxmlns\b`:
        For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
          If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`:
            If both the HTTP and HTTPS versions
            return 200 OK and serve the same content:
              Replace HTTP with HTTPS.

Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-07-30 10:51:26 -07:00
Suraj Upadhyay 7ba068d128 ixgbe: Remove unnecessary usages of memset
Replace memsets of 1 byte with simple assignment.
Issue found with checkpatch.pl

Signed-off-by: Suraj Upadhyay <usuraj35@gmail.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-07-30 10:51:26 -07:00
Suraj Upadhyay 90105264a6 igb: Remove unnecessary usages of memset
Replace memsets of 1 byte with simple assignment.
Issue found with checkpatch.pl

Signed-off-by: Suraj Upadhyay <usuraj35@gmail.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-07-30 10:51:25 -07:00
Suraj Upadhyay c5b369651b e1000e: Remove unnecessary usages of memset
Replace memsets of 1 byte with simple assignments.
Issue found with checkpatch.pl

Signed-off-by: Suraj Upadhyay <usuraj35@gmail.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-07-30 10:51:25 -07:00
Suraj Upadhyay 4b6bafb9e1 e1000: Remove unnecessary usages of memset
Replace memsets of 1 byte with simple assignments.
Issue reported by checkpatch.pl.

Signed-off-by: Suraj Upadhyay <usuraj35@gmail.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-07-30 10:51:25 -07:00
Vaibhav Gupta 69a74aef8a e100: use generic power management
With legacy PM hooks, it was the responsibility of a driver to manage PCI
states and also the device's power state. The generic approach is to let
PCI core handle the work.

e100_suspend() calls __e100_shutdown() to perform intermediate tasks.
__e100_shutdown() calls pci_save_state() which is not recommended.

e100_suspend() also calls __e100_power_off() which is calling PCI helper
functions, pci_prepare_to_sleep(), pci_set_power_state(), along with
pci_wake_from_d3(...,false). Hence, the functin call is removed and wol is
disabled as earlier using device_wakeup_disable().

Compile-tested only.

Signed-off-by: Vaibhav Gupta <vaibhavgupta40@gmail.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-07-30 10:50:55 -07:00
Vaibhav Gupta bac6631728 ixgbevf: use generic power management
With legacy PM, drivers themselves were responsible for managing the
device's power states and takes care of register states.

After upgrading to the generic structure, PCI core will take care of
required tasks and drivers should do only device-specific operations.

The driver was invoking PCI helper functions like pci_save/restore_state(),
and pci_enable/disable_device(), which is not recommended.

Compile-tested only.

Signed-off-by: Vaibhav Gupta <vaibhavgupta40@gmail.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-07-30 08:44:17 -07:00
Vaibhav Gupta 6f82b25587 ixgbe: use generic power management
With legacy PM hooks, it was the responsibility of a driver to manage PCI
states and also the device's power state. The generic approach is to let
PCI core handle the work.

ixgbe_suspend() calls __ixgbe_shutdown() to perform intermediate tasks.
__ixgbe_shutdown() modifies the value of "wake" (device should be wakeup
enabled or not), responsible for controlling the flow of legacy PM.

Since, PCI core has no idea about the value of "wake", new code for generic
PM may produce unexpected results. Thus, use "device_set_wakeup_enable()"
to wakeup-enable the device accordingly.

Compile-tested only.

Signed-off-by: Vaibhav Gupta <vaibhavgupta40@gmail.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-07-30 08:39:41 -07:00
Vaibhav Gupta e9c971bdab igbvf: use generic power management
Remove legacy PM callbacks and use generic operations. With legacy code,
drivers were responsible for handling PCI PM operations like
pci_save_state(). In generic code, all these are handled by PCI core.

The generic suspend() and resume() are called at the same point the legacy
ones were called. Thus, it does not affect the normal functioning of the
driver.

__maybe_unused attribute is used with .resume() but not with .suspend(), as
.suspend() is called by .shutdown().

Compile-tested only.

Signed-off-by: Vaibhav Gupta <vaibhavgupta40@gmail.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-07-30 08:36:08 -07:00
Vaibhav Gupta bc5cbd73eb iavf: use generic power management
With the support of generic PM callbacks, drivers no longer need to use
legacy .suspend() and .resume() in which they had to maintain PCI states
changes and device's power state themselves. The required operations are
done by PCI core.

PCI drivers are not expected to invoke PCI helper functions like
pci_save/restore_state(), pci_enable/disable_device(),
pci_set_power_state(), etc. Their tasks are completed by PCI core itself.

Compile-tested only.

Signed-off-by: Vaibhav Gupta <vaibhavgupta40@gmail.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-07-30 08:32:03 -07:00
Abhishek Pandit-Subedi 34ec58b9fd Revert "Bluetooth: btusb: Disable runtime suspend on Realtek devices"
This reverts commit 7ecacafc24.

Testing this change on a board with RTL8822CE, I found that enabling
autosuspend has no effect on the stability of the system. The board
continued working after autosuspend, suspend and reboot.

The original commit makes it impossible to enable autosuspend on working
systems so it should be reverted. Disabling autosuspend should be done
via module param or udev in userspace instead.

Signed-off-by: Abhishek Pandit-Subedi <abhishekpandit@chromium.org>
Acked-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2020-07-30 11:55:10 +02:00
Sathish Narasimman cbbdfa6f33 Bluetooth: Enable controller RPA resolution using Experimental feature
This patch adds support to enable the use of RPA Address resolution
using expermental feature mgmt command.

Signed-off-by: Sathish Narasimman <sathish.narasimman@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2020-07-30 11:14:05 +02:00
Sathish Narasimman b2cc23398e Bluetooth: Enable RPA Timeout
Enable RPA timeout during bluetooth initialization.
The RPA timeout value is used from hdev, which initialized from
debug_fs

Signed-off-by: Sathish Narasimman <sathish.narasimman@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2020-07-30 09:34:43 +02:00
Sathish Narasimman 5c49bcce5c Bluetooth: Enable/Disable address resolution during le create conn
In this patch if le_create_conn process is started restrict to
disable address resolution and same is disabled during
le_enh_connection_complete

Signed-off-by: Sathish Narasimman <sathish.narasimman@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2020-07-30 09:34:43 +02:00
Sathish Narasimman d03c759e39 Bluetooth: Let controller creates RPA during le create conn
When address resolution is enabled and set_privacy is enabled let's
use own address type as 0x03

Signed-off-by: Sathish Narasimman <sathish.narasimman@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2020-07-30 09:34:43 +02:00
Sathish Narasimman b31bc00bfe Bluetooth: Translate additional address type during le_conn
When using controller based address resolution, then the new address
types 0x02 and 0x03 are used. These types need to be converted back into
either public address or random address types.

This patch is specially during LE_CREATE_CONN if using own_add_type as 0x02
or 0x03.

Signed-off-by: Sathish Narasimman <sathish.narasimman@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2020-07-30 09:34:43 +02:00
Marcel Holtmann 0eee35bdfa Bluetooth: Update resolving list when updating whitelist
When the whitelist is updated, then also update the entries of the
resolving list for devices where IRKs are available.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sathish Narsimman <sathish.narasimman@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2020-07-30 09:34:42 +02:00
Marcel Holtmann e1d5723575 Bluetooth: Configure controller address resolution if available
When the LL Privacy support is available, then as part of enabling or
disabling passive background scanning, it is required to set up the
controller based address resolution as well.

Since only passive background scanning is utilizing the whitelist, the
address resolution is now bound to the whitelist and passive background
scanning. All other resolution can be easily done by the host stack.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sathish Narsimman <sathish.narasimman@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2020-07-30 09:34:42 +02:00
Marcel Holtmann 6540351e6f Bluetooth: Translate additional address type correctly
When using controller based address resolution, then the new address
types 0x02 and 0x03 are used. These types need to be converted back into
either public address or random address types.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sathish Narsimman <sathish.narasimman@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2020-07-30 09:34:42 +02:00
Brian Vazquez 41d707b733 fib: fix fib_rules_ops indirect calls wrappers
This patch fixes:
commit b9aaec8f0b ("fib: use indirect call wrappers in the most common
fib_rules_ops") which didn't consider the case when
CONFIG_IPV6_MULTIPLE_TABLES is not set.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Fixes: b9aaec8f0b ("fib: use indirect call wrappers in the most common fib_rules_ops")
Signed-off-by: Brian Vazquez <brianvv@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-29 13:26:42 -07:00
David S. Miller a41cf09b8e Merge branch '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue
Tony Nguyen says:

====================
100GbE Intel Wired LAN Driver Updates 2020-07-29

This series contains updates to the ice driver only.

Dave works around LFC settings not being preserved through link events.
Fixes link issues with GLOBR reset and handling of multiple link events.

Nick restores VF MSI-X after PCI reset.

Kiran corrects the error code returned in ice_aq_sw_rules if the rule
does not exist.

Paul prevents overwriting of user set descriptors.

Tarun adds masking before accessing rate limiting profile types and
corrects queue bandwidth configuration.

Victor modifies Tx queue scheduler distribution to spread more evenly
across queue group nodes.

Krzysztof sets need_wakeup flag for Tx AF_XDP.

Brett allows VLANs in safe mode.

Marcin cleans up VSIs on probe failure.

Bruce reduces the scope of a variable.

Ben removes a FW workaround.

Tony fixes an unused parameter warning.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-29 13:15:30 -07:00
Jisheng Zhang 5ba2254b04 net: mvneta: fix comment about phylink_speed_down
mvneta has switched to phylink, so the comment should look
like "We may have called phylink_speed_down before".

Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Reviewed-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-29 12:17:24 -07:00
Tony Nguyen 6221595fc5 ice: fix unused parameter warning
Depending on PAGE_SIZE, the following unused parameter warning can be
reported:

drivers/net/ethernet/intel/ice/ice_txrx.c: In function ‘ice_rx_frame_truesize’:
drivers/net/ethernet/intel/ice/ice_txrx.c:513:21: warning: unused parameter ‘size’ [-Wunused-parameter]
        unsigned int size)

The 'size' variable is used only when PAGE_SIZE >= 8192. Add __maybe_unused
to remove the warning.

Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
2020-07-29 08:38:56 -07:00
Ben Shelton 7dfff9ffe8 ice: disable no longer needed workaround for FW logging
For the FW logging info AQ command, we currently set the ICE_AQ_FLAG_RD
in order to work around a FW issue. This issue has been fixed so remove the
workaround.

Signed-off-by: Ben Shelton <benjamin.h.shelton@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-07-29 08:38:56 -07:00
Bruce Allan e923f04d66 ice: reduce scope of variable
The scope of the macro local variable 'i' can be reduced.  Do so to avoid
static analysis tools from complaining.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-07-29 08:38:55 -07:00
Marcin Szycik 78116e979d ice: cleanup VSI on probe fail
As part of ice_setup_pf_sw() a PF VSI is setup; release the VSI in case of
failure.

Signed-off-by: Marcin Szycik <marcin.szycik@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-07-29 08:38:55 -07:00
Brett Creeley cd1f56f429 ice: Allow all VLANs in safe mode
Currently the PF VSI's context parameters are left in a bad state when
going into safe mode. This is causing VLAN traffic to not pass. Fix this
by configuring the PF VSI to allow all VLAN tagged traffic.

Also, remove redundant comment explaining the safe mode flow in
ice_probe().

Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-07-29 08:38:55 -07:00
Krzysztof Kazimierczak 682dfedcee ice: need_wakeup flag might not be set for Tx
This is a port of i40e commit 705639572e ("i40e: need_wakeup flag might
not be set for Tx").

Quoting the original commit message:

"The need_wakeup flag for Tx might not be set for AF_XDP sockets that
are only used to send packets. This happens if there is at least one
outstanding packet that has not been completed by the hardware and we
get that corresponding completion (which will not generate an interrupt
since interrupts are disabled in the napi poll loop) between the time we
stopped processing the Tx completions and interrupts are enabled again.
In this case, the need_wakeup flag will have been cleared at the end of
the Tx completion processing as we believe we will get an interrupt from
the outstanding completion at a later point in time. But if this
completion interrupt occurs before interrupts are enable, we lose it and
should at that point really have set the need_wakeup flag since there
are no more outstanding completions that can generate an interrupt to
continue the processing. When this happens, user space will see a Tx
queue need_wakeup of 0 and skip issuing a syscall, which means will
never get into the Tx processing again and we have a deadlock."

As a result, packet processing stops. This patch introduces a fix for
this issue, by always setting the need_wakeup flag at the end of an
interrupt processing. This ensures that the deadlock will not happen.

Signed-off-by: Krzysztof Kazimierczak <krzysztof.kazimierczak@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-07-29 08:38:55 -07:00
Victor Raj 4043818c13 ice: distribute Tx queues evenly
Distribute the Tx queues evenly across all queue groups. This will
help the queues to get more equal sharing among the queues when all
are in use.

In the previous algorithm, the next queue group node will be picked up
only after the previous one filled with max children.
For example: if VSI is configured with 9 queues, the first 8 queues
will be assigned to queue group 1 and the 9th queue will be assigned to
queue group 2.

The 2 queue groups split the bandwidth between them equally (50:50).
The first queue group node will share the 50% bandwidth with all of
its children (8 queues). And the second queue group node will share
the entire 50% bandwidth with its only children.

The new algorithm will fix this issue.

Signed-off-by: Victor Raj <victor.raj@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-07-29 08:38:55 -07:00
Tarun Singh 984824a210 ice: Adjust scheduler default BW weight
By default the queues are configured in legacy mode. The default
BW settings for legacy/advanced modes are different. The existing
code was using the advanced mode default value of 1 which was
incorrect. This caused the unbalanced BW sharing among siblings.
The recommended default value is applied.

Signed-off-by: Tarun Singh <tarun.k.singh@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-07-29 08:38:55 -07:00
Tarun Singh b3b93d6ce1 ice: Add RL profile bit mask check
Mask bits before accessing the profile type field.

Signed-off-by: Tarun Singh <tarun.k.singh@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-07-29 08:38:55 -07:00
Paul M Stillwell Jr a02016de00 ice: fix overwriting TX/RX descriptor values when rebuilding VSI
If a user sets the value of the TX or RX descriptors to some non-default
value using 'ethtool -G' then we need to not overwrite the values when
we rebuild the VSI. The VSI rebuild could happen as a result of a user
setting the number of queues via the 'ethtool -L' command. Fix this by
checking to see if the value we have stored is non-zero and if it is
then don't change the value.

Signed-off-by: Paul M Stillwell Jr <paul.m.stillwell.jr@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-07-29 08:38:55 -07:00
Kiran Patil ca1fdb885e ice: return correct error code from ice_aq_sw_rules
Return ICE_ERR_DOES_NOT_EXIST return code if admin command error code is
ICE_AQ_RC_ENOENT (not exist). ice_aq_sw_rules is used when switch
rule is getting added/deleted/updated. In case of delete/update
switch rule, admin command can return ICE_AQ_RC_ENOENT error code
if such rule does not exist, hence return ICE_ERR_DOES_NOT_EXIST error
code from ice_aq_sw_rule, so that caller of this function can decide
how to handle ICE_ERR_DOES_NOT_EXIST.

Signed-off-by: Kiran Patil <kiran.patil@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-07-29 08:38:55 -07:00
Nick Nunley a54a0b24f4 ice: restore VF MSI-X state during PCI reset
During a PCI FLR the MSI-X Enable flag in the VF PCI MSI-X capability
register will be cleared. This can lead to issues when a VF is
assigned to a VM because in these cases the VF driver receives no
indication of the PF PCI error/reset and additionally it is incapable
of restoring the cleared flag in the hypervisor configuration space
without fully reinitializing the driver interrupt functionality.

Since the VF driver is unable to easily resolve this condition on its own,
restore the VF MSI-X flag during the PF PCI reset handling.

Signed-off-by: Nick Nunley <nicholas.d.nunley@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-07-29 08:38:55 -07:00
Dave Ertman 0ce6c34a8f ice: fix link event handling timing
When the driver experiences a link event (especially link up)
there can be multiple events generated. Some of these are
link fault and still have a state of DOWN set.  The problem
happens when the link comes UP during the PF driver handling
one of the LINK DOWN events.  The status of the link is updated
and is now seen as UP, so when the actual LINK UP event comes,
the port information has already been updated to be seen as UP,
even though none of the UP activities have been completed.

After the link information has been updated in the link
handler and evaluated for MEDIA PRESENT, if the state
of the link has been changed to UP, treat the DOWN event
as an UP event since the link is now UP.

Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-07-29 08:38:54 -07:00
Dave Ertman b767ca650f ice: Fix link broken after GLOBR reset
After a GLOBR, the link was broken so that a link
up situation was being seen as a link down.

The problem was that the rebuild process was updating
the port_info link status without doing any of the
other things that need to be done when link changes.

This was causing the port_info struct to have current
"UP" information so that any further UP interrupts
were skipped as redundant.

The rebuild flow should *not* be updating the port_info
struct link information, so eliminate this and leave
it to the link event handling code.

Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-07-29 08:38:54 -07:00
Dave Ertman 7d9c9b791f ice: Implement LFC workaround
There is a bug where the LFC settings are not being preserved
through a link event.  The registers in question are the ones
that are touched (and restored) when a set_local_mib AQ command
is performed.

On a link-up event, make sure that a set_local_mib is being
performed.

Move the function ice_aq_set_lldp_mib() from the DCB specific
ice_dcb.c to ice_common.c so that the driver always has access
to this AQ command.

Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-07-29 08:38:54 -07:00
David S. Miller 490ed0b908 Merge branch 'net-stmmac-improve-WOL'
Jisheng Zhang says:

====================
net: stmmac: improve WOL

Currently, stmmac driver relies on the HW PMT to support WOL. We want
to support phy based WOL.

patch1 is a small improvement to disable WAKE_MAGIC for PMT case if
no pmt_magic_frame.
patch2 and patch3 are two prepation patches.
patch4 implement the phy based WOL
patch5 tries to save a bit energy if WOL is enabled.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-28 17:48:20 -07:00
Jisheng Zhang 77b2898394 net: stmmac: Speed down the PHY if WoL to save energy
When WoL is enabled and the machine is powered off, the PHY remains
waiting for wakeup events at max speed, which is a waste of energy.

Slow down the PHY speed before stopping the ethernet if WoL is enabled,

Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-28 17:48:20 -07:00
Jisheng Zhang 1d8e5b0f3f net: stmmac: Support WOL with phy
Currently, the stmmac driver WOL implementation relies on MAC's PMT
feature. We have a case: the MAC HW doesn't enable PMT, instead, we
rely on the phy to support WOL. Implement the support for this case.

Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-28 17:48:20 -07:00
Jisheng Zhang e8377e7a29 net: stmmac: only call pmt() during suspend/resume if HW enables PMT
This is to prepare WOL support with phy. Compared with WOL
implementation which relies on the MAC's PMT features, in phy
supported WOL case, device_may_wakeup() may also be true, but we
should not call mac's pmt() function if HW doesn't enable PMT.

And during resume, we should call phylink_start() if PMT is disabled.

Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-28 17:48:20 -07:00
Jisheng Zhang 2f45f7a13e net: stmmac: Move device_can_wakeup() check earlier in set_wol
If !device_can_wakeup(), there's no need to futher check. And return
-EOPNOTSUPP rather than -EINVAL if !device_can_wakeup().

Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-28 17:48:20 -07:00
Jisheng Zhang 1057d685c6 net: stmmac: Remove WAKE_MAGIC if HW shows no pmt_magic_frame
Remove WAKE_MAGIC from supported modes if the HW capability register
shows no support for pmt_magic_frame.

Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-28 17:48:19 -07:00
David S. Miller f11df0454f Merge branch 'RTL8366-VLAN-callback-fixes'
Linus Walleij says:

====================
RTL8366 VLAN callback fixes

While we are pondering how to make the core set up the VLANs
the right way, let's merge the uncontroversial fixes.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-28 17:44:23 -07:00