Previously, we can only identify copper and fiber type, the
supported link modes of port information are always showing
SR type. This patch adds support for multiple media types,
include SR, LR CR, KR. Driver needs to query the media type
from firmware periodicly, and updates the port information.

The new port information looks like this:
Settings for eth0:
        Supported ports: [ FIBRE ]
        Supported link modes:   25000baseCR/Full
                                25000baseSR/Full
                                1000baseX/Full
                                10000baseCR/Full
                                10000baseSR/Full
                                10000baseLR/Full
        Supported pause frame use: Symmetric
        Supports auto-negotiation: No
        Supported FEC modes: None BaseR
        Advertised link modes:  Not reported
        Advertised pause frame use: No
        Advertised auto-negotiation: No
        Advertised FEC modes: Not reported
        Speed: 10000Mb/s
        Duplex: Full
        Port: FIBRE
        PHYAD: 0
        Transceiver: internal
        Auto-negotiation: off
        Current message level: 0x00000036 (54)
                               probe link ifdown ifup
        Link detected: yes

In order to be compatible with old firmware which only support
sfp speed, we remained using the same query command, and kept
the former logic.
Signed-off-by: NJian Shen <shenjian15@huawei.com>
Signed-off-by: NPeng Li <lipeng321@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch introduces "recovery mode" to the i40e driver. It is
part of a new Any2Any idea of upgrading the firmware. In this
approach, it is required for the driver to have support for
"transition firmware", that is used for migrating from structured
to flat firmware image. In this new, very basic mode, i40e driver
must be able to handle particular IOCTL calls from the NVM Update
Tool and run a small set of AQ commands.

These additional AQ commands are part of the interface used by
the NVMUpdate tool.  The NVMUpdate tool contains all of the
necessary logic to reference these new AQ commands.  The end user
experience remains the same, they are using the NVMUpdate tool to
update the NVM contents.
Signed-off-by: NAlice Michael <alice.michael@intel.com>
Signed-off-by: NPiotr Marczak <piotr.marczak@intel.com>
Tested-by: NDon Buchholz <donald.buchholz@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Printing each devices PCI vendor and device ID has the advantage of
easily revealing what hardware we're dealing with exactly. It's no
longer necessary to match the PCI bus information to the lspci output.

Helps with bug reports where no lspci output is available.

Output before
i40e 0000:08:00.0: fw 6.1.49420 api 1.7 nvm 6.80 0x80003c64 1.2007.0
and after
i40e 0000:08:00.0: fw 6.1.49420 api 1.7 nvm 6.80 0x80003c64 1.2007.0 [8086:1572] [8086:0004]
Signed-off-by: NStefan Assmann <sassmann@kpanic.de>
Tested-by: NAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

A refactor of the i40e_vc_config_promiscuous_mode_msg function moved
the check for un-trusted VF into another function. We have to lie to
an un-trusted VF that its request to set promiscuous mode is
successful even when it is not because we don't want the VF to find
out its trust status this way. With the refactor, we were running into
a case where even though we were not setting promiscuous mode for an
un-trusted VF, we still printed a misleading message that it was
successful.

This patch fixes that by ensuring that a success message is printed
on the host side only when the promiscuous mode change has been
successful.
Signed-off-by: NHarshitha Ramamurthy <harshitha.ramamurthy@intel.com>
Tested-by: NAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Just bumping the version number appropriately.
Signed-off-by: NAlice Michael <alice.michael@intel.com>
Tested-by: NAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

The function i40e_validate_cloud_filter checks that the destination and
source port numbers are valid by attempting to ensure that the number is
non-zero and no larger than 0xFFFF. However, the types for the dst_port
and src_port variable are __be16 which by definition cannot be larger
than 0xFFFF

Since these values cannot be larger than 2 bytes, the check to see if
they exceed 0xFFFF is meaningless.

One might consider these checks as some sort of defensive coding, in
case the type was later changed. However, these checks also byte-swap
the value before comparison using be16_to_cpu, which will truncate the
values to 16bits anyways. Additionally, changing the type would require
updating the opcodes to support new data layout of these virtchnl
commands.

Remove the check to silence the -Wtype-limits warning that was added to
GCC 8.
Signed-off-by: NJacob Keller <jacob.e.keller@intel.com>
Tested-by: NAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

This code implements driver code changes necessary for LLDP
Agent support. Modified i40e_aq_start_lldp() and
i40e_aq_stop_lldp() adding false parameter whether LLDP state
should be persistent across power cycles.
Signed-off-by: NAleksandr Loktionov <aleksandr.loktionov@intel.com>
Tested-by: NAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Add assignments for advertising 40GBase_LR4, 40GBase_CR4 and fibre
Signed-off-by: NAdam Ludkiewicz <adam.ludkiewicz@intel.com>
Tested-by: NAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Due to changes in FW the SW is required to perform double SR dump in
some cases.

Implementation adds two new steps to update nvm checksum function:
* recalculate checksum and check if checksum in NVM is correct
* if checksum in NVM is not correct then update it again
Signed-off-by: NMaciej Paczkowski <maciej.paczkowski@intel.com>
Tested-by: NAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

VF's attempt to delete vlan 0 when a port vlan is configured is harmless
in this case pf driver just does nothing.  If vf will try to remove
other vlans when a port vlan is configured it will still produce error
as before.
Signed-off-by: NAleksandr Loktionov <aleksandr.loktionov@intel.com>
Tested-by: NAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

TX MDD events reported on the PF are the result of the
PF misconfiguring a descriptor and not because of "bad actions"
by anything else.  No need to reset now because if it
results in a Tx hang, the Tx hang check will take care of it.
Signed-off-by: NCarolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: NAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

This patch changes the driver behavior when detecting a VF MDD event.
It now disables the VF after one event, which indicates a hw detected
problem in the VF.  Before this change, the PF would allow a couple of
events before doing the reset.
Signed-off-by: NCarolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: NAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

This structure was used intensively for machine specific values
when DT was not used. Since the removal of AVR32 from the kernel,
this structure is only used for passing clocks from PCI macb wrapper, all
other fields being 0.
All other known platforms use DT.

Remove the leftovers but make sure that PCI macb still works as
expected by using default values:
- phydev->irq is set to PHY_POLL by mdiobus_alloc()
- mii_bus->phy_mask is cleared while allocating it
- bp->phy_interface is set to PHY_INTERFACE_MODE_MII if mode not found
in DT.

This simplifies driver probe path and particularly phy handling.
Signed-off-by: NNicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

While moving the chunk of code during 739de9a1
("net: macb: Reorganize macb_mii bringup"), the declaration of
struct phy_device declaration was kept. It's not useful in this
function as we alrady have a phydev pointer.
Signed-off-by: NNicolas Ferre <nicolas.ferre@microchip.com>
Reviewed-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Fixes: d84aec42 ("net: ll_temac: Fix support for 64-bit platforms")
Signed-off-by: NEsben Haabendal <esben@geanix.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This commit introduces support for the "Drop" action in classification
offload. This corresponds to the "-1" action with ethtool -N.

This is achieved using the color marking actions available in the C2
engine, which associate a color to a packet. These colors can be either
Green, Yellow or Red, Red meaning that the packet should be dropped.

Green and Yellow colors are interpreted by the Policer, which isn't
supported yet.

This method of dropping using the Classifier is different than the
already existing early-drop features, such as VLAN filtering and MAC
UC/MC filtering, which are performed during the Parsing step, and
therefore take precedence over classification actions.
Signed-off-by: NMaxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This commit introduces basic classification offloading support for the
PPv2 controller.

The PPv2 classifier has many classification engines, for now we only use
the C2 TCAM match engine.

This engine allows to perform ternary lookups on 64 bits keys (called
Header Extracted Key), that are built by extracting fields from the packet
header and concatenating them. At most 4 fields can be extracted for a
single lookup.

This basic implementation allows to build the HEK from the following
fields :
 - L4 source and destination ports (for UDP and TCP)

More fields are to be added in the future.

Classification flows are added through the ethtool interface, using the
newly introduced flow_rule infrastructure as an internal rule
representation, allowing to more easily implement tc flower rules if
need be.

The internal design for now allocates one range of 4 rules per port
due to the internal design of the flow table, which uses 22 sub-flows.

When inserting a classification rule, the rule is created in every
relevant sub-flow.

This low rule-count is a very simple design which reaches quickly the
limitations of the flow table ordering, but guarantees that the rule
ordering will always be respected.

This commit only introduces support for the "steer to rxq" action.
Signed-off-by: NMaxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

As of today, the classification code is used only for RSS. We split the
incoming traffic into multiple flows, that correspond to the ethtool
flow_type parameter.

We don't want to use the ethtool flow definitions such as TCP_V4_FLOW,
for several reason :

 - We want to decorrelate the driver code from ethtool as much as
   possible, so that we can easily use other interfaces such as tc flower,

 - We want the flow_type to be a bitfield, so that we can match flows
   embedded into each other, such as TCP4 which is a subset of IP4.

This commit does the conversion to the newer type.
Signed-off-by: NMaxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Cosmetic patch removing extra whitespaces when writing the flow_table
entries
Signed-off-by: NMaxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

As soon as TAILDESCR_PTR is written, DMA transfers might start.
Let's ensure we are ready to receive DMA IRQ's before doing that.
Signed-off-by: NEsben Haabendal <esben@geanix.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This allows custom setup of IRQ coalescing for platforms using legacy
platform_device. The irq timeout and count parameters can be used for
tuning cpu load vs. latency.

I have maintained the 0x00000400 bit in TX_CHNL_CTRL.  It is specified as
unused in the documentation I have available.  It does not make any
difference in the hardware I have available, so it is left in to not risk
breaking other platforms where it might be used.
Signed-off-by: NEsben Haabendal <esben@geanix.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Use usleep_range() to avoid problems with msleep() actually sleeping
much longer than expected.
Signed-off-by: NEsben Haabendal <esben@geanix.com>
Reviewed-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

As we are actually using a BD for both the skb and each frag contained in
it, the oldest TX BD would be overwritten when there was exactly one BD
less than needed.
Signed-off-by: NEsben Haabendal <esben@geanix.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Unmap the actual buffer length, not the amount of data received, avoiding
resource exhaustion of swiotlb (seen on x86_64 platform).
Signed-off-by: NEsben Haabendal <esben@geanix.com>
Reviewed-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Indirect register access goes through a DCR bus bridge, which
allows only one outstanding transaction.  And to make matters
worse, each TEMAC IP block contains two Ethernet interfaces, and
although they seem to have separate registers for indirect access,
they actually share the registers.  Or to be more specific, MSW, LSW
and CTL registers are physically shared between Ethernet interfaces
in same TEMAC IP, with RDY register being (almost) specificic to
the Ethernet interface.  The 0x10000 bit in RDY reflects combined
bus ready state though.

So we need to take care to synchronize not only within a single
device, but also between devices in same TEMAC IP.

This commit allows to do that with legacy platform devices.

For OF devices, the xlnx,compound parent of the temac node should be
used to find siblings, and setup a shared indirect_mutex between them.
I will leave this work to somebody else, as I don't have hardware to
test that.  No regression is introduced by that, as before this commit
using two Ethernet interfaces in same TEMAC block is simply broken.
Signed-off-by: NEsben Haabendal <esben@geanix.com>
Reviewed-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

With little-endian and 64-bit support in place, the ll_temac driver can
now be used on x86 and x86_64 platforms.

And while at it, enable COMPILE_TEST also.
Signed-off-by: NEsben Haabendal <esben@geanix.com>
Reviewed-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Both TEMAC and SDMA is big-endian, so make sure that all values in SDMA
buffer descriptors (cmdac_bd) are handled as big-endian, independent of the
host endianness. With all currently supported platforms being big-endian,
this change does not make a change for any of them.

Note, when using app3 and app4 for piggybacking skb pointers there is no
need to care about endianness, as neither TEMAC nor SDMA access app3 and
app4 in TX buffer descriptors.
Signed-off-by: NEsben Haabendal <esben@geanix.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Replace the powerpc specific MMIO register access functions with the
generic big-endian mmio access functions, and add support for
little-endian access depending on configuration.

Big-endian access is maintained as the default, but little-endian can
be configured in device-tree binding or in platform data.

The temac_ior()/temac_iow() functions are replaced with macro wrappers
to avoid modifying existing code more than necessary.
Signed-off-by: NEsben Haabendal <esben@geanix.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The use of buffer descriptor APP4 field (32-bit) for storing skb pointer
obviously does not work on 64-bit platforms.
As APP3 is also unused, we can use that to store the other half of 64-bit
pointer values.

Contrary to what is hinted at in commit message of commit 15bfe05c
("net: ethernet: xilinx: Mark XILINX_LL_TEMAC broken on 64-bit")
there are no other pointers stored in cdmac_bd.
Signed-off-by: NEsben Haabendal <esben@geanix.com>
Reviewed-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Support initialization with platdata, so the driver can be used on
non-device-tree platforms.

For currently supported device-tree platforms, the driver should behave
as before.
Signed-off-by: NEsben Haabendal <esben@geanix.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

As a side effect, a few error cases are fixed.

If of_iomap() of sdma_regs failed, no error code was returned.  Fixed to
return -ENOMEM similar to of_iomap() fail of regs.

If sysfs_create_group() or register_netdev() failed, lp->phy_node was not
released.

Finally, the order in remove function is corrected to be reverse order
of what is done in probe, i.e. calling temac_mdio_teardown() last, so we
unregister the netdev that most likely is using the mdio_bus first.
Signed-off-by: NEsben Haabendal <esben@geanix.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Fix inconsistent IS_ERR and PTR_ERR in cpsw_probe,
The proper pointer to use is clk instead of mode.

This issue was detected with the help of Coccinelle.

Fixes: 83a8471b ("net: ethernet: ti: cpsw: refactor probe to group common hw initialization")
Signed-off-by: NYueHaibing <yuehaibing@huawei.com>
Reviewed-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

In preparation to enabling -Wimplicit-fallthrough, mark switch
cases where we are expecting to fall through.

This patch fixes the following warning:

drivers/net/ethernet/sfc/mcdi_port.c: In function ‘efx_mcdi_phy_decode_link’:
./include/linux/compiler.h:77:22: warning: this statement may fall through [-Wimplicit-fallthrough=]
 # define unlikely(x) __builtin_expect(!!(x), 0)
                      ^~~~~~~~~~~~~~~~~~~~~~~~~~
./include/asm-generic/bug.h:125:2: note: in expansion of macro ‘unlikely’
  unlikely(__ret_warn_on);     \
  ^~~~~~~~
drivers/net/ethernet/sfc/mcdi_port.c:344:3: note: in expansion of macro ‘WARN_ON’
   WARN_ON(1);
   ^~~~~~~
drivers/net/ethernet/sfc/mcdi_port.c:345:2: note: here
  case MC_CMD_FCNTL_OFF:
  ^~~~

Warning level 3 was used: -Wimplicit-fallthrough=3

This patch is part of the ongoing efforts to enable
-Wimplicit-fallthrough.
Signed-off-by: NGustavo A. R. Silva <gustavo@embeddedor.com>
Acked-by: NEdward Cree <ecree@solarflare.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Some device ids were never released and does not exist.
Cleanup these.
Signed-off-by: NNikita Danilov <ndanilov@aquantia.com>
Signed-off-by: NIgor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

DMA counters are 64 bit and we can fetch that to reduce
counter overflow, espesially on byte counters.
Tested-by: NNikita Danilov <ndanilov@aquantia.com>
Signed-off-by: NIgor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: NDmitry Bogdanov <dmitry.bogdanov@aquantia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

aq_nic_update_ndev_stats pushes statistics to ndev->stats from
system interface. This is not always good because it counts packets/bytes
before any of rx filters (including mac filter).

Its better to report the packet/bytes statistics from DMA
counters which gives actual values of data transferred over pci.
System level stats is still available via ethtool.
Signed-off-by: NNikita Danilov <ndanilov@aquantia.com>
Signed-off-by: NIgor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: NDmitry Bogdanov <dmitry.bogdanov@aquantia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This improves ethtool -S usage, where stats are now actual
on each request. Before that stats only were updated at service
timer period.
Tested-by: NNikita Danilov <ndanilov@aquantia.com>
Signed-off-by: NIgor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: NDmitry Bogdanov <dmitry.bogdanov@aquantia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Service timer callback fetches statistics from FW and that may cause
a long delay in error cases. We also now need to use fw mutex
to prevent concurrent access to FW, thus - extract that logic
from timer callback into the job in the separate work queue.
Signed-off-by: NNikita Danilov <ndanilov@aquantia.com>
Signed-off-by: NIgor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Some of FW operations could be invoked simultaneously,
from f.e. ethtool context and from service service activity work.
Here we introduce a fw mutex to secure and serialize access
to FW logic.
Signed-off-by: NNikita Danilov <ndanilov@aquantia.com>
Signed-off-by: NIgor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Typo in msi code. No much impact though.
Signed-off-by: NNikita Danilov <ndanilov@aquantia.com>
Signed-off-by: NIgor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>