1. Use info from DT if available

It allows describing for example a fixed link. It's more accurate than
just guessing there may be one (depending on a chipset).

2. Verify PHY ID before trying to connect PHY

PHY addr 0x1e (30) is special in Broadcom routers and means a switch
connected as MDIO devices instead of a real PHY. Don't try connecting to
it.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>

We need to cast the pointer, unlike memcpy() eth_hw_addr_set()
does not take void *. The driver already casts &port->mac_addr
to u8 * in other places.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Fixes: a96d317f ("ethernet: use eth_hw_addr_set()")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

Russell King says:

====================
Add phylink helper for 10G modes

During the last cycle, there was discussion about adding a helper
to set the 10G link modes for phylink, which resulted in these two
patches introduce such a helper.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

Update three drivers to use the new phylink_set_10g_modes() helper:
Cadence macb, Freescale DPAA2 and Marvell PP2.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>

Add a helper for setting 10Gigabit modes, so we have one central
place that sets all appropriate 10G modes for a driver.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>

sdata->tun_src should be freed before sdata is freed
because sdata->tun_src is allocated after sdata allocation.
So, kfree(sdata) and kfree(rcu_dereference_raw(sdata->tun_src)) are
changed code order.

Fixes: f04ed7d2 ("net: ipv6: check return value of rhashtable_init")
Signed-off-by: MichelleJin <shjy180909@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Prabhakar Kushwaha says:

====================
qed: new firmware version 8.59.1.0 support

This series integrate new firmware version 8.59.1.0, along with updated
HSI (hardware software interface) to use the FW, into the family of
qed drivers (fastlinq devices). This FW does not reside in the NVRAM.
It needs to be programmed to device during driver load as the part of
initialization sequence.

Similar to previous FW support series, this FW is tightly linked to
software and pf function driver. This means FW release is not backward
compatible, and driver should always run with the FW it was designed
against.

FW binary blob is already submitted & accepted in linux-firmware repo.

Patches in the series include:
patch 1     - qed: Fix kernel-doc warnings
patch 2     - qed: Remove e4_ and _e4 from FW HSI
patch 3     - qed: split huge qed_hsi.h header file
patch 4-8   - HSI (hardware software interface) changes
patch 9     - qed: Add '_GTT' suffix to the IRO RAM macros
patch 10    - qed: Update debug related changes
patch 11    - qed: rdma: Update TCP silly-window-syndrome timeout
patch 12    - qed: Update the TCP active termination 2  MSL timer
patch 13    - qed: fix ll2 establishment during load of RDMA driver

In addition, this patch series also fixes existing checkpatch warnings
and checks which are missing.

Changes for v2:
 - Incorporated Jakub's comments.
   - New patch introduced to fix all kernel-doc issue in qed driver.
   - Fixed warning: ‘qed_mfw_ext_20g’ defined but not used.
   - Fixed warning related to kernel-doc wrt to this series.
   - Removed inline function declaration.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

If stats ID of a LL2 (light l2) queue exceeds than the total amount
of statistics counters, it may cause system crash upon enabling
RDMA on all PFs.

This patch makes sure that the stats ID of the LL2 queue doesn't exceed
the max allowed value.
Signed-off-by: Manish Chopra <manishc@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: Shai Malin <smalin@marvell.com>
Signed-off-by: Omkar Kulkarni <okulkarni@marvell.com>
Signed-off-by: Prabhakar Kushwaha <pkushwaha@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Initialize 2 MSL timeout value used for the TCP TIME_WAIT state to
non-zero default.

This patch also removes magic number from qedi/qedi_main.c.
Reviewed-by: Manish Rangankar <mrangankar@marvell.com>
Signed-off-by: Nikolay Assa <nassa@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: Shai Malin <smalin@marvell.com>
Signed-off-by: Omkar Kulkarni <okulkarni@marvell.com>
Signed-off-by: Prabhakar Kushwaha <pkushwaha@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Update TCP silly-window-syndrome timeout, for the cases where
initiator's small TCP window size prevents FW from transmitting
packets on the connection. Timeout causes FW to retransmit
window probes if needed, preventing I/O stall if initiator ignores
first window probe.
Reviewed-by: Manish Rangankar <mrangankar@marvell.com>
Signed-off-by: Nikolay Assa <nassa@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: Shai Malin <smalin@marvell.com>
Signed-off-by: Omkar Kulkarni <okulkarni@marvell.com>
Signed-off-by: Prabhakar Kushwaha <pkushwaha@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

qed_debug features are updated to support FW version 8.59.1.0 along
with few enhancements.
  - Removal of _BB_K2 from register defines.
  - Add new condition cond14.
  - Add dump of new area sw-platform, epoch, iscsi_task_pages,
    fcoe_task_pages, roce_task_pages and eth_task_pages.
  - Introduced new functions qed_dbg_phy_size().
  - Update in qed_mcp_nvm_rd_cmd() declaration.
  - Allow QED to control init/exit at pf level.
  - Dump partial "ILT-dump" if buffer size is not sufficient.

This patch also fixes the existing checkpatch warnings and few important
checks.
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: Shai Malin <smalin@marvell.com>
Signed-off-by: Omkar Kulkarni <okulkarni@marvell.com>
Signed-off-by: Prabhakar Kushwaha <pkushwaha@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

GTT (Global translation table) is a fast-access window in the BAR into
the register space, which only maps certain register addresses.
This change helps enforce that only those addresses which are indeed
mapped by the GTT are being accessed through it.

Adding the '_GTT' suffix to the IRO FW memory (“RAM”) macros that
access GTT-able region in FW memories (“RAM”) and use GTT macros
to access RAM BAR from drivers.
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: Omkar Kulkarni <okulkarni@marvell.com>
Signed-off-by: Shai Malin <smalin@marvell.com>
Signed-off-by: Prabhakar Kushwaha <pkushwaha@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

The qed_init_fw_func.c and qed_init_ops.c updated to support FW
version 8.59.1.0.
  - Support 16-bit VPORT WFQ (weighted fair queueing) weights.
  - Support WFQ (weighted fair queueing) weight per VPORT + TC.
  - Support allocation of Tx PQs(physical queues) per PF,VF.
  - Modify Global RL (rate limiter) upper bound configuration.
  - Update FW operation functions.
  - Update iro_arr[] array.

This patch also fixes the existing checkpatch warnings and few important
checks.
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: Shai Malin <smalin@marvell.com>
Signed-off-by: Omkar Kulkarni <okulkarni@marvell.com>
Signed-off-by: Prabhakar Kushwaha <pkushwaha@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

qed_iro_hsi.h contains HSI changes related to storm memories access.
Existing code is based on hard-coded index.
Use enum as defined for FW HSI 8.59.1.0, instead of hard-coded index.

This patch also removes unnecessary header file inclusion.
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: Omkar Kulkarni <okulkarni@marvell.com>
Signed-off-by: Shai Malin <smalin@marvell.com>
Signed-off-by: Prabhakar Kushwaha <pkushwaha@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

The qed_hsi.h has been updated to support new FW version 8.59.1.0 with
changes.
 - Updates FW HSI (Hardware Software interface) structures.
 - Addition/update in function declaration and defines as per HSI.
 - Add generic infrastructure for FW error reporting as part of
   common event queue handling.
 - Move malicious VF error reporting to FW error reporting
   infrastructure.
 - Move consolidation queue initialization from FW context to ramrod
   message.

qed_hsi.h header file changes lead to change in many files to ensure
compilation.

This patch also fixes the existing checkpatch warnings and few important
checks.
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: Shai Malin <smalin@marvell.com>
Signed-off-by: Omkar Kulkarni <okulkarni@marvell.com>
Signed-off-by: Prabhakar Kushwaha <pkushwaha@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

The qed_mfw_hsi.h contains HSI (Hardware Software Interface) changes
related to management firmware. It has been updated to support new FW
version 8.59.1.0 with below changes.
 - New defines for VF bitmap.
 - fec_mode and extended_speed defines updated in struct eth_phy_cfg.
 - Updated structutres lldp_system_tlvs_buffer_s, public_global,
   public_port, public_func, drv_union_data, public_drv_mb
   with all dependent new structures.
 - Updates in NVM related structures and defines.
 - Msg defines are added in enum drv_msg_code and fw_msg_code.
 - Updated/added new defines.

This patch also fixes the existing checkpatch warnings and few important
checks.
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: Omkar Kulkarni <okulkarni@marvell.com>
Signed-off-by: Shai Malin <smalin@marvell.com>
Signed-off-by: Prabhakar Kushwaha <pkushwaha@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

The common_hsi.h has been updated for FW version 8.59.1.0 with below
changes.
  - FW and Tools version.
  - New structures related to search table, packet duplication.
  - Structure for doorbell address for legacy mode without DEM.
  - Enhanced union rdma_eqe_data for RoCE Suspend Event Data.
  - New defines.

This patch also fixes the existing checkpatch warnings and few important
checks.
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: Shai Malin <smalin@marvell.com>
Signed-off-by: Omkar Kulkarni <okulkarni@marvell.com>
Signed-off-by: Prabhakar Kushwaha <pkushwaha@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

The qed_hsi.h is a huge header file containing HSI (Hardware Software
Interface) definitions of storm memory access, debug related, general
and management firmware specific. In order to have a better
code-organization HSI definition, this patch split the code across
multiple files, i.e.
- storm memory access HSI : qed_iro_hsi.h
- debug related HSI       : qed_dbg_hsi.h
- Management firmware HSI : qed_mfg_hsi.h
- General HSI             : qed_hsi.h

In addition, this patch also fixes existing checkpatch warnings and
few important checks.
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: Shai Malin <smalin@marvell.com>
Signed-off-by: Omkar Kulkarni <okulkarni@marvell.com>
Signed-off-by: Prabhakar Kushwaha <pkushwaha@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

The existing qed/qede/qedr/qedi/qedf code uses chip-specific naming in
structures,  functions, variables and defines in FW HSI (Hardware
Software Interface).

The new FW version introduced a generic naming convention in HSI
in-which the same code will be used across different versions
for simpler maintainability. It also eases in providing support for
new features.

With this patch every "_e4" or "e4_" prefix or suffix is not needed
anymore and it will be removed.
Reviewed-by: Manish Rangankar <mrangankar@marvell.com>
Reviewed-by: Javed Hasan <jhasan@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: Omkar Kulkarni <okulkarni@marvell.com>
Signed-off-by: Shai Malin <smalin@marvell.com>
Signed-off-by: Prabhakar Kushwaha <pkushwaha@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

This patch fixes all the qed and qede kernel-doc warnings
according to the guidelines that are described in
Documentation/doc-guide/kernel-doc.rst.
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: Omkar Kulkarni <okulkarni@marvell.com>
Signed-off-by: Shai Malin <smalin@marvell.com>
Signed-off-by: Prabhakar Kushwaha <pkushwaha@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Justin Iurman says:

====================
Support for the ip6ip6 encapsulation of IOAM

v2:
 - add prerequisite patches
 - keep uapi backwards compatible by adding two new attributes
 - add more comments to document the ioam6_iptunnel uapi

In the current implementation, IOAM can only be inserted directly (i.e., only
inside packets generated locally) by default, to be compliant with RFC8200.

This patch adds support for in-transit packets and provides the ip6ip6
encapsulation of IOAM (RFC8200 compliant). Therefore, three ioam6 encap modes
are defined:

 - inline: directly inserts IOAM inside packets (by default).

 - encap:  ip6ip6 encapsulation of IOAM inside packets.

 - auto:   either inline mode for packets generated locally or encap mode for
           in-transit packets.

With current iproute2 implementation, it is configured this way:

$ ip -6 r [...] encap ioam6 trace prealloc [...]

The old syntax does not change (for backwards compatibility) and implicitly uses
the inline mode. With the new syntax, an encap mode can be specified:

(inline mode)
$ ip -6 r [...] encap ioam6 mode inline trace prealloc [...]

(encap mode)
$ ip -6 r [...] encap ioam6 mode encap tundst fc00::2 trace prealloc [...]

(auto mode)
$ ip -6 r [...] encap ioam6 mode auto tundst fc00::2 trace prealloc [...]

A tunnel destination address must be configured when using the encap mode or the
auto mode.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

This patch adds support for testing the encap (ip6ip6) mode of IOAM.
Signed-off-by: Justin Iurman <justin.iurman@uliege.be>
Signed-off-by: David S. Miller <davem@davemloft.net>

This patch adds support for the ip6ip6 encapsulation by providing three encap
modes: inline, encap and auto.
Signed-off-by: Justin Iurman <justin.iurman@uliege.be>
Signed-off-by: David S. Miller <davem@davemloft.net>

This prerequisite patch provides some minor edits (alignments, renames) and a
minor modification inside a function to facilitate the next patch by using
existing nla_* functions.
Signed-off-by: Justin Iurman <justin.iurman@uliege.be>
Signed-off-by: David S. Miller <davem@davemloft.net>

This patch anticipates the support for the IOAM insertion inside in-transit
packets, by making a difference between input and output in order to determine
the right value for its hop-limit (inherited from the IPv6 hop-limit).

Input case: happens before ip6_forward, the IPv6 hop-limit is not decremented
yet -> decrement the IOAM hop-limit to reflect the new hop inside the trace.

Output case: happens after ip6_forward, the IPv6 hop-limit has already been
decremented -> keep the same value for the IOAM hop-limit.
Signed-off-by: Justin Iurman <justin.iurman@uliege.be>
Signed-off-by: David S. Miller <davem@davemloft.net>

This patch caches doorbell address directly in struct mlx4_en_tx_ring.

This removes the need to bring in cpu caches whole struct mlx4_uar
in fast path.

Note that mlx4_uar is not guaranteed to be on a local node,
because mlx4_bf_alloc() uses a single free list (priv->bf_list)
regardless of its node parameter.

This kind of change does matter in presence of light/moderate traffic.
In high stress, this read-only line would be kept hot in caches.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Jeremy Kerr says:

====================
MCTP kunit tests

This change adds some initial kunit tests for the MCTP core. We'll
expand the coverage in a future series, and augment with a few
selftests, but this establishes a baseline set of tests for now.

Thanks to the kunit folks for the framework!

---

v2:
 - fix MCTP=m, KUNIT={y,m} breakage
 - fix mctp test netdev initialisation
 - strict route reference count checking
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

Add multi-packet route input tests, for message reassembly. These will
feed packets to be received by a bound socket, or dropped.
Signed-off-by: Jeremy Kerr <jk@codeconstruct.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

Add a few tests for single-packet route inputs, testing the
mctp_route_input function.
Signed-off-by: Jeremy Kerr <jk@codeconstruct.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

Add a few tests for the initial packet ingress through
mctp_pkttype_receive function; mainly packet header sanity checks. Full
input routing checks will be added as a separate change.
Signed-off-by: Jeremy Kerr <jk@codeconstruct.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

Add a new object for shared test utilities
Signed-off-by: Jeremy Kerr <jk@codeconstruct.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

This change adds the first kunit test for the mctp subsystem, and an
initial test for the fragmentation path.

We're adding tests under a new net/mctp/test/ directory.

Incorporates a fix for module configs:
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Jeremy Kerr <jk@codeconstruct.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

1. Removed driver specific extra params like download_region,
   address & region_count. The required information is passed
   as part of flash API.
2. IOSM Devlink documentation updated to reflect the same.
Signed-off-by: M Chetan Kumar <m.chetan.kumar@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Jakub Kicinski says:

====================
Use netdev->dev_addr write helpers (part 1)

Commit 406f42fa ("net-next: When a bond have a massive amount
of VLANs...") introduced a rbtree for faster Ethernet address look
up. To maintain netdev->dev_addr in this tree we need to make all
the writes to it got through appropriate helpers.

This is the first installment of predictably tedious conversion.
It tackles:

  memcpy(netdev->dev_addr, something, ETH_ADDR)

and

  ether_addr_copy(netdev->dev_addr, something)

replacing both with eth_hw_addr_set().

The first 7 patches are done entirely by sparse.
Next 4 were semi-manual because the sparse conversion
resulted in errors.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

eth_hw_addr_set() takes a u8 pointer, like other
etherdevice helpers. Convert the few drivers which
require casts because they memcpy from "endian marked"
types.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

Convert from memcpy(), include is needed.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

Manual conversions because we need to get to the member
which is inside an array to have a u8 pointer which
eth_hw_addr_set() expects.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

Convert chelsio drivers from memcpy() and ether_addr_copy()
to eth_hw_addr_set(). They lack includes.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

Commit 406f42fa ("net-next: When a bond have a massive amount
of VLANs...") introduced a rbtree for faster Ethernet address look
up. To maintain netdev->dev_addr in this tree we need to make all
the writes to it got through appropriate helpers.

Convert net/usb from ether_addr_copy() to eth_hw_addr_set():

  @@
  expression dev, np;
  @@
  - ether_addr_copy(dev->dev_addr, np)
  + eth_hw_addr_set(dev, np)
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>