Convert all users of RTsym to the new set of helpers which
handle all targets correctly.
Signed-off-by: NJakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: NFrancois H. Theron <francois.theron@netronome.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Make nfp_rtsym_{read,write}_le() and nfp_rtsym_map() use the new
target resolution helpers to allow accessing in-cache symbols.
Signed-off-by: NJakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: NFrancois H. Theron <francois.theron@netronome.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Align nfp_cpp_map_area() with other CPP-level APIs and pass
encoded cpp_id/dest rather than target, action, domain tuple.
Signed-off-by: NJakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: NFrancois H. Theron <francois.theron@netronome.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

RTsyms may have special encodings for more complex symbol types.
For example symbols which are placed in external memory unit's
cache directly, constants or local memory.  Add set of helpers
which will check for those special encodings and handle them
correctly.

For now only add direct cache accesses, we don't have a need to
access the other ones in foreseeable future.
Signed-off-by: NJakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: NFrancois H. Theron <francois.theron@netronome.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add error prints to CPP target encoding/decoding logic, otherwise
it's quite hard to pin point the reasons why read or write
operations fail.
Signed-off-by: NJakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: NFrancois H. Theron <francois.theron@netronome.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

We will soon need the MU locality field offset much more
often than just for decoding MIP address.  Save it in nfp_cpp
for quick access.  Note that we can already reuse the target
config from nfp_cpp, no need to do the XPB read.
Signed-off-by: NJakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: NFrancois H. Theron <francois.theron@netronome.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Use a switch statement instead of ifs for code dependent
on chip version.  While at it make sure we fail for unknown
chip revisions.
Signed-off-by: NJakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add NFP5000 to supported chips, the chip is backward compatible
with NFP4000 and NFP6000, so core PCIe code needs to handle it
the same way as 4k and 6k.
Signed-off-by: NJakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

In multi-host scenarios Management FW may allocate MAC addresses
at runtime, we have to use the indirect lookup to find them.
Signed-off-by: NJakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: NDirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Management FW can adjust some of the information in the HWinfo table
at runtime.  In some cases reading the table directly will not yield
correct results.  Add a NSP command for looking up information.
Up until now we weren't making use of any of the values which may
get adjusted.
Signed-off-by: NJakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: NDirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

To enable easier FW distribution NFP can now automatically
select between FW stored on the flash and loaded from the
kernel.

If FW loading policy is set to auto it will compare the
versions of FW from the host and from the flash and load
the newer one.  If FW type doesn't match (e.g. one advanced
application vs another) the FW from the host takes precedence,
unless one of them is the basic NIC firmware, in which case
the non-basic-NIC FW is selected.

This automatic selection mechanism requires we inform user
what the verdict was.  Print a message to the logs explaining
the decision and the reason.
Signed-off-by: NJakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: NDirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Flash may contain a default NFP application FW.  This application
can either be put there by the user (with ethtool -f) or shipped
with the card.  If file system FW is not found, attempt to load
this flash stored app FW.
Signed-off-by: NJakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: NDirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

There is already a fair number of arguments to nfp_nsp_command()
family of functions.  Encapsulate them into structures to make
adding new ones easier.  No functional changes.
Signed-off-by: NJakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: NDirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Jeff Kirsher says:

====================
100GbE Intel Wired LAN Driver Updates 2018-08-28

This series contains new features and implementation updates for the
ice driver.

Anirudh reworks the current flex programming logic to add support for
a second flex descriptor profile.  Updated the transmit scheduler
code to handle changes to the spec, specifically the firmware expects
a 4KB buffer at all times so fix the default scheduler topology buffer
size.  Also the maximum children per node per layer is replaced by
maximum sibling group size.  Adds a check to ensure a reset is not in
progress before exercising a control queue operation.  Refactored the
switch rule management functions and structures to simply the logic and
to add a common function to search for a rule entry and add a new rule
entry.  Refactored the VSI allocation, deletion and rebuild flow so that
on reset we can restore all the filters that were previously added.  Did
some spring cleaning of define names and macros.

Dan updates the admin queue command for requesting resource ownership
to the latest specification by adding new enum's and change the locks.

Zhenning optimizes the driver by using the existing buffer in a
structure directly versus a local array.

Chinh implements handlers for ethtool for get and set link settings.

Sudheer implements transmit hang/timeout detection and malicious driver
detection in the driver.

Md Fahad Iqbal implements the get and set bridge mode operations.

Hieu adds the ability for firmware logging during initialization.

Brett updates the driver to only enable VSI transmit and receive pruning
when VLAN 0 is active, and when VLAN 0 is removed/not active, pruning is
disabled.

Akeem adds a flag to use for stopping the service task.
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Jeff Kirsher says:

====================
10GbE Intel Wired LAN Driver Updates 2018-08-28

This series contains updates to ixgbe and ixgbevf only.

Sebastian adds support for firmware NVM recovery mode, which logs a
message when errors are detected and un-registers the device.  Also
fixed RSS type recognition with VF to VF communication.

Shannon Nelson implements IPsec hardware offload for VF devices in
Intel's 10GbE x540 family of Ethernet devices.

The IPsec HW offload feature has been in the x540/Niantic family of
network devices since their release in 2009, but there was no Linux
kernel support for the offload until 2017.  After the XFRM code added
support for the offload last year, the HW offload was added to the ixgbe
PF driver.

Since the related x540 VF device uses same setup as the PF for implementing
the offload, adding the feature to the ixgbevf seemed like a good idea.
In this case, the PF owns the device registers, so the VF simply packages
up the request information into a VF<->PF message and the PF does the
device configuration.
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

When failing the request because we can't support that offload,
reporting EOPNOTSUPP makes much more sense than ENXIO.
Signed-off-by: NShannon Nelson <shannon.nelson@oracle.com>
Tested-by: NAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

There seems to be a problem in the x540's internal switch wherein if SR-IOV
mode is enabled and an offloaded IPsec packet is sent to a local VF,
the packet is silently dropped.  This might never be a problem as it is
somewhat a corner case, but if someone happens to be using IPsec offload
from the PF to a VF that just happens to get migrated to the local box,
communication will mysteriously fail.

Not good.

A simple way to protect from this is to simply not allow any IPsec offloads
for outgoing packets when num_vfs != 0.  This doesn't help any offloads that
were created before SR-IOV was enabled, but we'll get to that later.
Signed-off-by: NShannon Nelson <shannon.nelson@oracle.com>
Tested-by: NAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Add the IPsec initialization into the driver startup and
add the Rx and Tx processing hooks.
Signed-off-by: NShannon Nelson <shannon.nelson@oracle.com>
Tested-by: NAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Add the IPsec offload support code.  This is based off of the similar
code in ixgbe, but instead of writing the SA registers, the VF asks
the PF to setup the offload by sending the offload information to the
PF via the standard mailbox.
Signed-off-by: NShannon Nelson <shannon.nelson@oracle.com>
Tested-by: NAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Fix up the register definitions for using IPsec offloads and
add the new mailbox message IDs.
Signed-off-by: NShannon Nelson <shannon.nelson@oracle.com>
Tested-by: NAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Add an add and a delete message for IPsec offload requests from
the VF.  These call into the IPsec functions that can translate
the message buffer into a useful IPsec offload.

These new messages bump the mbox API version to 1.4.
Signed-off-by: NShannon Nelson <shannon.nelson@oracle.com>
Tested-by: NAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Add a private flag to expressly enable support for VF IPsec offload.
The VF will have to be "trusted" in order to use the hardware offload,
but because of the general concerns of managing VF access, we want to
be sure the user specifically is enabling the feature.

This is likely a candidate for becoming a netdev feature flag.
Signed-off-by: NShannon Nelson <shannon.nelson@oracle.com>
Tested-by: NAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Add functions to translate VF IPsec offload add and delete requests
into something the existing code can work with.
Signed-off-by: NShannon Nelson <shannon.nelson@oracle.com>
Tested-by: NAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Pull out a couple of values from a function so they can be used
later elsewhere.
Signed-off-by: NShannon Nelson <shannon.nelson@oracle.com>
Tested-by: NAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Restore the IPsec hardware IP table after reloading the SA tables.
This doesn't make much difference now, but will matter when we add
support for VF IPsec offloads.
Signed-off-by: NShannon Nelson <shannon.nelson@oracle.com>
Tested-by: NAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

The software SA record counters should not be cleared when clearing
the hardware tables.  This causes the counters to be out of sync
after a driver reset.

Fixes: 63a67fe2 ("ixgbe: add ipsec offload add and remove SA")
Signed-off-by: NShannon Nelson <shannon.nelson@oracle.com>
Tested-by: NAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

While VF2VF with RSS communication, RSS Type were wrongly recognized
and RSS hash was not calculated as it should be. Packets was
distributed on various queues by accident.
This commit fixes that behaviour and causes proper RSS Type recognition.
Signed-off-by: NSebastian Basierski <sebastianx.basierski@intel.com>
Tested-by: NAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Add check for FW NVM recovery mode during driver initialization and
service task. If in recovery mode, log message and unregister device
Signed-off-by: NSebastian Basierski <sebastianx.basierski@intel.com>
Tested-by: NDon Buchholz <donald.buchholz@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Remove the "ice" prefix for the driver version string and bump version
to 0.7.1-k.
Signed-off-by: NAnirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: NTony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

This patch introduces SERVICE_DIS flag to use for stopping service task.
This flag will be checked before scheduling new tasks. Also add new
functions ice_service_task_stop to stop service task.
Signed-off-by: NAkeem G Abodunrin <akeem.g.abodunrin@intel.com>
Signed-off-by: NAnirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: NTony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

VLAN pruning is not valid when VLAN 0 is not active. If VLAN
pruning is enabled and VLAN 0 is not active (8021q driver not loaded)
then normal, non-VLAN, traffic will not pass.

TX/RX VLAN pruning is enabled when the VLAN 0 is added to the
active_vlan bitmap and it is disabled when VLAN 0 is removed from the
active_vlan bitmap.

So, only enable VLAN pruning when VLAN 0 is active. Setting RX VLAN
pruning causes the switch to drop received VLAN packets when there
are no matching VLAN ids in the associated VSI's switch filters. Setting
TX pruning makes it so the switch will not send out any packets with
VLAN tags that don't match the associated VSI's switch filters.

With this patch, if the VF or PF tries to send a VLAN tagged packet with
a VLAN tag that it does not have a pruning rule for it will trigger an
MDD event. For example, if PF0 has VLAN10 and VLAN11 interfaces and
scapy is used to send a packet with VLAN8 then the MDD is triggered.

Also make ice_vsi_kill_vlan return a value which the caller can check
before updating VLAN related data structures (counts, pruning bits, etc.).
Signed-off-by: NBrett Creeley <brett.creeley@intel.com>
Signed-off-by: NAnirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: NTony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

To enable FW logging, the "cq_en" and "uart_en" enable bits of the
"fw_log" element in struct ice_hw need to set accordingly based on
some user-provided parameters during driver loading. To select which
FW log events to be emitted, the "cfg" elements of corresponding FW
modules in the "evnts" array member of "fw_log" need to be configured.
Signed-off-by: NHieu Tran <hieu.t.tran@intel.com>
Signed-off-by: NAnirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: NTony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

ice_bridge_getlink returns the current bridge mode using
ndo_dflt_bridge_getlink and the mode parameter available in
first_switch->bridge_mode.

ice_bridge_setlink is invoked when the bridge mode needs to
changed. The value to be changed to is available as a netlink
message which is parsed in this function. If the mode has to
be changed, switch_flags is set appropriately (set ALLOW_LB
for VEB mode and clear it for VEPA mode) and ice_aq_update_vsi
is called. Also change the unicast switch filter rules.
Signed-off-by: NMd Fahad Iqbal Polash <md.fahad.iqbal.polash@intel.com>
Signed-off-by: NAnirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: NTony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

When a malicious operation is detected, the firmware triggers an
interrupt, which is then picked up by the service task (specifically by
ice_handle_mdd_event). A reset is scheduled if required.

Tx hang detection works in a similar way, except the logic here monitors
the VSI's Tx queues and tries to revive them if stalled. If the hang is
not resolved, the kernel eventually calls ndo_tx_timeout, which is
handled by ice_tx_timeout.
Signed-off-by: NSudheer Mogilappagari <sudheer.mogilappagari@intel.com>
Signed-off-by: NAnirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: NTony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

This patch cleans up the existing register definitions.

1) Several instances of long defines names used in the BIT() macro
   were replaced to use the actual values they represent. As a
   result some defines for shifts (ending with _S) that were used
   only to create bitmasks were removed completely.

2) Apply more consistent tab spacing.
Signed-off-by: NAnirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: NTony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

This patch implements handlers for ethtool get_link_ksettings and
set_link_ksettings. Helper functions use by these handlers are also
introduced in this patch.
Signed-off-by: NChinh Cao <chinh.t.cao@intel.com>
Signed-off-by: NAnirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: NTony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

This patch refactors aspects of the VSI allocation, deletion and rebuild
flow. Some of the more noteworthy changes are described below.

1) On reset, all switch filters applied in the hardware are lost. In
   the rebuild flow, only MAC and broadcast filters are being restored.
   Instead, use a new function ice_replay_all_fltr to restore all the
   filters that were previously added. To do this, remove calls to
   ice_remove_vsi_fltr to prevent cleaning out the internal bookkeeping
   structures that ice_replay_all_fltr uses to replay filters.

2) Introduce a new state bit __ICE_PREPARED_FOR_RESET to distinguish the
   PF that requested the reset (and consequently prepared for it) from
   the rest of the PFs. These other PFs will prepare for reset only
   when they receive an interrupt from the firmware.

3) Use new functions ice_add_vsi and ice_free_vsi to create and destroy
   VSIs respectively. These functions accept a handle to uniquely
   identify a VSI. This same handle is required to rebuild the VSI post
   reset. To prevent confusion, the existing ice_vsi_add was renamed to
   ice_vsi_init.

4) Enhance ice_vsi_setup for the upcoming SR-IOV changes and expose a
   new wrapper function ice_pf_vsi_setup to create PF VSIs. Rework the
   error handling path in ice_setup_pf_sw.

5) Introduce a new function ice_vsi_release_all to release all PF VSIs.
Signed-off-by: NAnirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: NTony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

This patch is an adaptation of the work originally done by Grishma
Kotecha <grishma.kotecha@intel.com> that in summary refactors the
switch filtering logic in the driver. More specifically,
 - Update the recipe structure to also store list of rules
 - Update the existing code for recipes like MAC, VLAN, ethtype etc to
   use list head that is attached to switch recipe structure
 - Add a common function to search for a rule entry and add a new rule
   entry. Update the code to use this new function.
 - Refactor the rem_handle_vsi_list function to simplify the logic

CC: Shannon Nelson <shannon.nelson@oracle.com>
Signed-off-by: NAnirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: NTony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Use the buffer in the s_rule structure directly instead of using
a local array eth_hdr[DUMMY_ETH_HDR_LEN]
Signed-off-by: NZhenning Xiao <zhenning.xiao@intel.com>
Signed-off-by: NAnirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: NTony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Once reset is issued, the driver loses all control queue interfaces.
Exercising control queue operations during reset is incorrect and
may result in long timeouts.

This patch introduces a new field 'reset_ongoing' in the hw structure.
This is set to 1 by the core driver when it receives a reset interrupt.
ice_sq_send_cmd checks reset_ongoing before actually issuing the control
queue operation. If a reset is in progress, it returns a soft error code
(ICE_ERR_RESET_PENDING) to the caller. The caller may or may not have to
take any action based on this return. Once the driver knows that the
reset is done, it has to set reset_ongoing back to 0. This will allow
control queue operations to be posted to the hardware again.

This "bail out" logic was specifically added to ice_sq_send_cmd (which
is pretty low level function) so that we have one solution in one place
that applies to all types of control queues.
Signed-off-by: NAnirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: NTony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>