platform/kernel/linux-rpi.git
3 years agonet/mlx5e: Reserve a value from TC tunnel options mapping
Vlad Buslov [Wed, 1 Sep 2021 15:22:37 +0000 (18:22 +0300)]
net/mlx5e: Reserve a value from TC tunnel options mapping

Reserve one more value from TC tunnel options range to be used by bridge
offload in following patches.

Signed-off-by: Vlad Buslov <vladbu@nvidia.com>
Reviewed-by: Paul Blakey <paulb@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
3 years agonet/mlx5e: Move parse fdb check into actions_match_supported_fdb()
Roi Dayan [Sun, 15 Aug 2021 10:36:01 +0000 (13:36 +0300)]
net/mlx5e: Move parse fdb check into actions_match_supported_fdb()

The parse fdb/nic actions funcs parse the actions and then call
actions_match_supported() for final check.
Move related check in parse_tc_fdb_actions() into
actions_match_supported_fdb() for more organized code.

Signed-off-by: Roi Dayan <roid@nvidia.com>
Reviewed-by: Maor Dickman <maord@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
3 years agonet/mlx5e: Split actions_match_supported() into a sub function
Roi Dayan [Sun, 15 Aug 2021 09:53:13 +0000 (12:53 +0300)]
net/mlx5e: Split actions_match_supported() into a sub function

There will probably be more checks, some for nic flows, some for fdb
flows and some are shared checks. Split it for fdb and nic to avoid
the function getting too big.

Signed-off-by: Roi Dayan <roid@nvidia.com>
Reviewed-by: Maor Dickman <maord@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
3 years agonet/mlx5e: Move mod hdr allocation to a single place
Roi Dayan [Thu, 12 Aug 2021 12:46:34 +0000 (15:46 +0300)]
net/mlx5e: Move mod hdr allocation to a single place

Move mod hdr allocation chunk from parse_tc_fdb_actions() and
parse_tc_nic_actions() to a shared function.

Signed-off-by: Roi Dayan <roid@nvidia.com>
Reviewed-by: Maor Dickman <maord@nvidia.com>
Reviewed-by: Oz Shlomo <ozsh@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
3 years agonet/mlx5e: TC, Refactor sample offload error flow
Roi Dayan [Tue, 14 Sep 2021 08:32:51 +0000 (11:32 +0300)]
net/mlx5e: TC, Refactor sample offload error flow

Refactor sample unoffload to be symmetric to sample offload.
Use the existing del_post_rule() to release the post rule.
Also mlx5e_tc_sample_unoffload() should not return post_rule
which is NULL when post actions are supported.
Sample offload works with this NULL because many places of the
code use IS_ERR() instead of IS_ERR_OR_NULL() to check rule is valid
and when rule is detected as sample offload the code is not using the
rule. Let's be persistent and avoid returning NULL anyway and return the
pre rule, like in CT case, which is not NULL.

Signed-off-by: Roi Dayan <roid@nvidia.com>
Reviewed-by: Chris Mi <cmi@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
3 years agonet/mlx5e: Add TX max rate support for MQPRIO channel mode
Tariq Toukan [Wed, 29 Sep 2021 13:30:38 +0000 (16:30 +0300)]
net/mlx5e: Add TX max rate support for MQPRIO channel mode

Add driver max_rate support for the MQPRIO bw_rlimit shaper
in channel mode.

Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Maxim Mikityanskiy <maximmi@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
3 years agonet/mlx5e: Specify SQ stats struct for mlx5e_open_txqsq()
Tariq Toukan [Wed, 18 Aug 2021 11:17:33 +0000 (14:17 +0300)]
net/mlx5e: Specify SQ stats struct for mlx5e_open_txqsq()

Let the caller of mlx5e_open_txqsq() directly pass the SQ stats
structure pointer.
This replaces logic involving the qos_queue_group_id parameter,
and helps generalizing its role in the next patch.

Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Maxim Mikityanskiy <maximmi@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
3 years agoMerge branch 'phy-10g-mode-helper'
David S. Miller [Mon, 4 Oct 2021 12:50:05 +0000 (13:50 +0100)]
Merge branch 'phy-10g-mode-helper'

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>
3 years agonet: ethernet: use phylink_set_10g_modes()
Russell King (Oracle) [Mon, 4 Oct 2021 11:03:33 +0000 (12:03 +0100)]
net: ethernet: use phylink_set_10g_modes()

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>
3 years agonet: phylink: add phylink_set_10g_modes() helper
Russell King (Oracle) [Mon, 4 Oct 2021 11:03:28 +0000 (12:03 +0100)]
net: phylink: add phylink_set_10g_modes() helper

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>
3 years agonet: ipv6: fix use after free of struct seg6_pernet_data
MichelleJin [Sat, 2 Oct 2021 22:33:32 +0000 (22:33 +0000)]
net: ipv6: fix use after free of struct seg6_pernet_data

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: f04ed7d277e8 ("net: ipv6: check return value of rhashtable_init")

Signed-off-by: MichelleJin <shjy180909@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoMerge branch 'qed-new-fw'
David S. Miller [Mon, 4 Oct 2021 11:55:49 +0000 (12:55 +0100)]
Merge branch 'qed-new-fw'

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>
3 years agoqed: fix ll2 establishment during load of RDMA driver
Manish Chopra [Mon, 4 Oct 2021 06:58:51 +0000 (09:58 +0300)]
qed: fix ll2 establishment during load of RDMA driver

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>
3 years agoqed: Update the TCP active termination 2 MSL timer ("TIME_WAIT")
Prabhakar Kushwaha [Mon, 4 Oct 2021 06:58:50 +0000 (09:58 +0300)]
qed: Update the TCP active termination 2 MSL timer ("TIME_WAIT")

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>
3 years agoqed: Update TCP silly-window-syndrome timeout for iwarp, scsi
Nikolay Assa [Mon, 4 Oct 2021 06:58:49 +0000 (09:58 +0300)]
qed: Update TCP silly-window-syndrome timeout for iwarp, scsi

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>
3 years agoqed: Update debug related changes
Prabhakar Kushwaha [Mon, 4 Oct 2021 06:58:48 +0000 (09:58 +0300)]
qed: Update debug related changes

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>
3 years agoqed: Add '_GTT' suffix to the IRO RAM macros
Prabhakar Kushwaha [Mon, 4 Oct 2021 06:58:47 +0000 (09:58 +0300)]
qed: Add '_GTT' suffix to the IRO RAM macros

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>
3 years agoqed: Update FW init functions to support FW 8.59.1.0
Omkar Kulkarni [Mon, 4 Oct 2021 06:58:46 +0000 (09:58 +0300)]
qed: Update FW init functions to support FW 8.59.1.0

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>
3 years agoqed: Use enum as per FW 8.59.1.0 in qed_iro_hsi.h
Prabhakar Kushwaha [Mon, 4 Oct 2021 06:58:45 +0000 (09:58 +0300)]
qed: Use enum as per FW 8.59.1.0 in qed_iro_hsi.h

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>
3 years agoqed: Update qed_hsi.h for fw 8.59.1.0
Prabhakar Kushwaha [Mon, 4 Oct 2021 06:58:44 +0000 (09:58 +0300)]
qed: Update qed_hsi.h for fw 8.59.1.0

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>
3 years agoqed: Update qed_mfw_hsi.h for FW ver 8.59.1.0
Prabhakar Kushwaha [Mon, 4 Oct 2021 06:58:43 +0000 (09:58 +0300)]
qed: Update qed_mfw_hsi.h for FW ver 8.59.1.0

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>
3 years agoqed: Update common_hsi for FW ver 8.59.1.0
Prabhakar Kushwaha [Mon, 4 Oct 2021 06:58:42 +0000 (09:58 +0300)]
qed: Update common_hsi for FW ver 8.59.1.0

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>
3 years agoqed: Split huge qed_hsi.h header file
Omkar Kulkarni [Mon, 4 Oct 2021 06:58:41 +0000 (09:58 +0300)]
qed: Split huge qed_hsi.h header file

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>
3 years agoqed: Remove e4_ and _e4 from FW HSI
Shai Malin [Mon, 4 Oct 2021 06:58:40 +0000 (09:58 +0300)]
qed: Remove e4_ and _e4 from FW HSI

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>
3 years agoqed: Fix kernel-doc warnings
Prabhakar Kushwaha [Mon, 4 Oct 2021 06:58:39 +0000 (09:58 +0300)]
qed: Fix kernel-doc warnings

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>
3 years agoMerge branch 'ipv6-ioam-encap'
David S. Miller [Mon, 4 Oct 2021 11:53:36 +0000 (12:53 +0100)]
Merge branch 'ipv6-ioam-encap'

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>
3 years agoselftests: net: Test for the IOAM encapsulation with IPv6
Justin Iurman [Sun, 3 Oct 2021 18:45:39 +0000 (20:45 +0200)]
selftests: net: Test for the IOAM encapsulation with IPv6

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>
3 years agoipv6: ioam: Add support for the ip6ip6 encapsulation
Justin Iurman [Sun, 3 Oct 2021 18:45:38 +0000 (20:45 +0200)]
ipv6: ioam: Add support for the ip6ip6 encapsulation

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>
3 years agoipv6: ioam: Prerequisite patch for ioam6_iptunnel
Justin Iurman [Sun, 3 Oct 2021 18:45:37 +0000 (20:45 +0200)]
ipv6: ioam: Prerequisite patch for ioam6_iptunnel

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>
3 years agoipv6: ioam: Distinguish input and output for hop-limit
Justin Iurman [Sun, 3 Oct 2021 18:45:36 +0000 (20:45 +0200)]
ipv6: ioam: Distinguish input and output for hop-limit

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>
3 years agonet/mlx4_en: avoid one cache line miss to ring doorbell
Eric Dumazet [Fri, 1 Oct 2021 00:52:49 +0000 (17:52 -0700)]
net/mlx4_en: avoid one cache line miss to ring doorbell

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>
3 years agoMerge branch 'mctp-kunit-tests'
David S. Miller [Sun, 3 Oct 2021 13:35:42 +0000 (14:35 +0100)]
Merge branch 'mctp-kunit-tests'

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>
3 years agomctp: Add input reassembly tests
Jeremy Kerr [Sun, 3 Oct 2021 03:17:08 +0000 (11:17 +0800)]
mctp: Add input reassembly tests

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>
3 years agomctp: Add route input to socket tests
Jeremy Kerr [Sun, 3 Oct 2021 03:17:07 +0000 (11:17 +0800)]
mctp: Add route input to socket tests

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>
3 years agomctp: Add packet rx tests
Jeremy Kerr [Sun, 3 Oct 2021 03:17:06 +0000 (11:17 +0800)]
mctp: Add packet rx tests

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>
3 years agomctp: Add test utils
Jeremy Kerr [Sun, 3 Oct 2021 03:17:05 +0000 (11:17 +0800)]
mctp: Add test utils

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>
3 years agomctp: Add initial test structure and fragmentation test
Jeremy Kerr [Sun, 3 Oct 2021 03:17:04 +0000 (11:17 +0800)]
mctp: Add initial test structure and fragmentation test

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>
3 years agonet: wwan: iosm: correct devlink extra params
M Chetan Kumar [Sat, 2 Oct 2021 14:32:12 +0000 (20:02 +0530)]
net: wwan: iosm: correct devlink extra params

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>
3 years agoMerge branch 'hw_addr_set'
David S. Miller [Sat, 2 Oct 2021 13:18:26 +0000 (14:18 +0100)]
Merge branch 'hw_addr_set'

Jakub Kicinski says:

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

Commit 406f42fa0d3c ("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>
3 years agoethernet: use eth_hw_addr_set() - casts
Jakub Kicinski [Fri, 1 Oct 2021 21:32:28 +0000 (14:32 -0700)]
ethernet: use eth_hw_addr_set() - casts

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>
3 years agofddi: use eth_hw_addr_set()
Jakub Kicinski [Fri, 1 Oct 2021 21:32:27 +0000 (14:32 -0700)]
fddi: use eth_hw_addr_set()

Convert from memcpy(), include is needed.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoethernet: s2io: use eth_hw_addr_set()
Jakub Kicinski [Fri, 1 Oct 2021 21:32:26 +0000 (14:32 -0700)]
ethernet: s2io: use eth_hw_addr_set()

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>
3 years agoethernet: chelsio: use eth_hw_addr_set()
Jakub Kicinski [Fri, 1 Oct 2021 21:32:25 +0000 (14:32 -0700)]
ethernet: chelsio: use eth_hw_addr_set()

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>
3 years agonet: usb: use eth_hw_addr_set() instead of ether_addr_copy()
Jakub Kicinski [Fri, 1 Oct 2021 21:32:24 +0000 (14:32 -0700)]
net: usb: use eth_hw_addr_set() instead of ether_addr_copy()

Commit 406f42fa0d3c ("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>
3 years agoethernet: use eth_hw_addr_set() instead of ether_addr_copy()
Jakub Kicinski [Fri, 1 Oct 2021 21:32:23 +0000 (14:32 -0700)]
ethernet: use eth_hw_addr_set() instead of ether_addr_copy()

Convert Ethernet 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>
3 years agonet: use eth_hw_addr_set() instead of ether_addr_copy()
Jakub Kicinski [Fri, 1 Oct 2021 21:32:22 +0000 (14:32 -0700)]
net: use eth_hw_addr_set() instead of ether_addr_copy()

Convert 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>
3 years agonet: usb: use eth_hw_addr_set()
Jakub Kicinski [Fri, 1 Oct 2021 21:32:21 +0000 (14:32 -0700)]
net: usb: use eth_hw_addr_set()

Commit 406f42fa0d3c ("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 usb drivers from memcpy(... ETH_ADDR) to eth_hw_addr_set():

  @@
  expression dev, np;
  @@
  - memcpy(dev->dev_addr, np, ETH_ALEN)
  + eth_hw_addr_set(dev, np)

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoethernet: use eth_hw_addr_set()
Jakub Kicinski [Fri, 1 Oct 2021 21:32:20 +0000 (14:32 -0700)]
ethernet: use eth_hw_addr_set()

Convert all Ethernet drivers from memcpy(... ETH_ADDR)
to eth_hw_addr_set():

  @@
  expression dev, np;
  @@
  - memcpy(dev->dev_addr, np, ETH_ALEN)
  + eth_hw_addr_set(dev, np)

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: use eth_hw_addr_set()
Jakub Kicinski [Fri, 1 Oct 2021 21:32:19 +0000 (14:32 -0700)]
net: use eth_hw_addr_set()

Convert sw drivers from memcpy(... ETH_ADDR) to eth_hw_addr_set():

  @@
  expression dev, np;
  @@
  - memcpy(dev->dev_addr, np, ETH_ALEN)
  + eth_hw_addr_set(dev, np)

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoarch: use eth_hw_addr_set()
Jakub Kicinski [Fri, 1 Oct 2021 21:32:18 +0000 (14:32 -0700)]
arch: use eth_hw_addr_set()

Commit 406f42fa0d3c ("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 misc arch drivers from memcpy(... ETH_ADDR) to eth_hw_addr_set():

  @@
  expression dev, np;
  @@
  - memcpy(dev->dev_addr, np, ETH_ALEN)
  + eth_hw_addr_set(dev, np)

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Max Filippov <jcmvbkbc@gmail.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoMerge branch 'ocelot-vlan'
David S. Miller [Sat, 2 Oct 2021 13:15:57 +0000 (14:15 +0100)]
Merge branch 'ocelot-vlan'

Vladimir Oltean says:

====================
Egress VLAN modification using VCAP ES0 on Ocelot switches

This patch set adds support for modifying a VLAN ID at the egress stage
of Ocelot/Felix switch ports. It is useful for replicating a packet on
multiple ports, and each egress port sends it using a different VLAN ID.

Tested by rewriting the VLAN ID of both
(a) packets injected from the CPU port
(b) packets received from an external station on a front-facing port

Adding a selftest to make sure it doesn't bit-rot, and if it does, that
it can be traced back easily.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoselftests: net: mscc: ocelot: add a test for egress VLAN modification
Vladimir Oltean [Fri, 1 Oct 2021 15:15:31 +0000 (18:15 +0300)]
selftests: net: mscc: ocelot: add a test for egress VLAN modification

For this test we are exercising the VCAP ES0 block's ability to match on
a packet with a given VLAN ID, and push an ES0 TAG A with a VID derived
from VID_A_VAL plus the classified VLAN.

$eth3.200 is the generator port
$eth0 is the bridged DUT port that receives
$eth1 is the bridged DUT port that forwards and rewrites VID 200 to 300
      on egress via VCAP ES0
$eth2 is the port that receives from the DUT port $eth1

Since the egress rewriting happens outside the bridging service, VID 300
does not need to be in the bridge VLAN table of $eth1.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoselftests: net: mscc: ocelot: rename the VLAN modification test to ingress
Vladimir Oltean [Fri, 1 Oct 2021 15:15:30 +0000 (18:15 +0300)]
selftests: net: mscc: ocelot: rename the VLAN modification test to ingress

There will be one more VLAN modification selftest added, this time for
egress. Rename the one that exists right now to be more specific.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoselftests: net: mscc: ocelot: bring up the ports automatically
Vladimir Oltean [Fri, 1 Oct 2021 15:15:29 +0000 (18:15 +0300)]
selftests: net: mscc: ocelot: bring up the ports automatically

Looks like when I wrote the selftests I was using a network manager that
brought up the ports automatically. In order to not rely on that, let
the script open them up.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: dsa: tag_ocelot: set the classified VLAN during xmit
Vladimir Oltean [Fri, 1 Oct 2021 15:15:28 +0000 (18:15 +0300)]
net: dsa: tag_ocelot: set the classified VLAN during xmit

Currently, all packets injected into Ocelot switches are classified to
VLAN 0, regardless of whether they are VLAN-tagged or not. This is
because the switch only looks at the VLAN TCI from the DSA tag.

VLAN 0 is then stripped on egress due to REW_TAG_CFG_TAG_CFG. There are
2 cases really, below is the explanation for ocelot_port_set_native_vlan:

- Port is VLAN-aware, we set REW_TAG_CFG_TAG_CFG to 1 (egress-tag all
  frames except VID 0 and the native VLAN) if a native VLAN exists, or
  to 3 otherwise (tag all frames, including VID 0).

- Port is VLAN-unaware, we set REW_TAG_CFG_TAG_CFG to 0 (port tagging
  disabled, classified VLAN never appears in the packet).

One can already see an inconsistency: when a native VLAN exists, VID 0
is egress-untagged, but when it doesn't, VID 0 is egress-tagged.

So when we do this:
ip link add br0 type bridge vlan_filtering 1
ip link set swp0 master br0
bridge vlan del dev swp0 vid 1
bridge vlan add dev swp0 vid 1 pvid # but not untagged

and we ping through swp0, packets will look like this:

MAC > 33:33:00:00:00:02, ethertype 802.1Q (0x8100): vlan 0, p 0,
ethertype 802.1Q (0x8100), vlan 1, p 0, ethertype IPv6 (0x86dd),
ICMP6, router solicitation, length 16

So VID 1 frames (sent that way by the Linux bridge) are encapsulated in
a VID 0 header - the classified VLAN of the packets as far as the hw is
concerned. To avoid that, what we really need to do is stop injecting
packets using the classified VLAN of 0.

This patch strips the VLAN header from the skb payload, if that VLAN
exists and if the port is under a VLAN-aware bridge. Then it copies that
VLAN header into the DSA injection frame header.

A positive side effect is that VCAP ES0 VLAN rewriting rules now work
for packets injected from the CPU into a port that's under a VLAN-aware
bridge, and we are able to match those packets by the VLAN ID that was
sent by the network stack, and not by VLAN ID 0.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: mscc: ocelot: write full VLAN TCI in the injection header
Vladimir Oltean [Fri, 1 Oct 2021 15:15:27 +0000 (18:15 +0300)]
net: mscc: ocelot: write full VLAN TCI in the injection header

The VLAN TCI contains more than the VLAN ID, it also has the VLAN PCP
and Drop Eligibility Indicator.

If the ocelot driver is going to write the VLAN header inside the DSA
tag, it could just as well write the entire TCI.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: mscc: ocelot: support egress VLAN rewriting via VCAP ES0
Vladimir Oltean [Fri, 1 Oct 2021 15:15:26 +0000 (18:15 +0300)]
net: mscc: ocelot: support egress VLAN rewriting via VCAP ES0

Currently the ocelot driver does support the 'vlan modify' action, but
in the ingress chain, and it is offloaded to VCAP IS1. This action
changes the classified VLAN before the packet enters the bridging
service, and the bridging works with the classified VLAN modified by
VCAP IS1.

That is good for some use cases, but there are others where the VLAN
must be modified at the stage of the egress port, after the packet has
exited the bridging service. One example is simulating IEEE 802.1CB
active stream identification filters ("active" means that not only the
rule matches on a packet flow, but it is also able to change some
headers). For example, a stream is replicated on two egress ports, but
they must have different VLAN IDs on egress ports A and B.

This seems like a task for the VCAP ES0, but that currently only
supports pushing the ES0 tag A, which is specified in the rule. Pushing
another VLAN header is not what we want, but rather overwriting the
existing one.

It looks like when we push the ES0 tag A, it is actually possible to not
only take the ES0 tag A's value from the rule itself (VID_A_VAL), but
derive it from the following formula:

ES0_TAG_A = Classified VID + VID_A_VAL

Otherwise said, ES0_TAG_A can be used to increment with a given value
the VLAN ID that the packet was already classified to, and the packet
will have this value as an outer VLAN tag. This new VLAN ID value then
gets stripped on egress (or not) according to the value of the native
VLAN from the bridging service.

While the hardware will happily increment the classified VLAN ID for all
packets that match the ES0 rule, in practice this would be rather
insane, so we only allow this kind of ES0 action if the ES0 filter
contains a VLAN ID too, so as to restrict the matching on a known
classified VLAN. If we program VID_A_VAL with the delta between the
desired final VLAN (ES0_TAG_A) and the classified VLAN, we obtain the
desired behavior.

It doesn't look like it is possible with the tc-vlan action to modify
the VLAN ID but not the PCP. In hardware it is possible to leave the PCP
to the classified value, but we unconditionally program it to overwrite
it with the PCP value from the rule.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agodt-bindings: net: renesas,etheravb: Update example to match reality
Geert Uytterhoeven [Fri, 1 Oct 2021 12:13:55 +0000 (14:13 +0200)]
dt-bindings: net: renesas,etheravb: Update example to match reality

- Add missing clock-names property,
  - Add example compatible values for PHY subnode.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agodt-bindings: net: renesas,ether: Update example to match reality
Geert Uytterhoeven [Fri, 1 Oct 2021 12:13:20 +0000 (14:13 +0200)]
dt-bindings: net: renesas,ether: Update example to match reality

- Drop unneeded interrupt-parent,
  - Convert to new style CPG/MSSR bindings,
  - Add missing power-domains and resets properties,
  - Update PHY subnode:
      - Add example compatible values,
      - Add micrel,led-mode and reset-gpios examples.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet:dev: Change napi_gro_complete return type to void
Gyumin Hwang [Sat, 2 Oct 2021 08:11:36 +0000 (08:11 +0000)]
net:dev: Change napi_gro_complete return type to void

napi_gro_complete always returned the same value, NET_RX_SUCCESS
And the value was not used anywhere

Signed-off-by: Gyumin Hwang <hkm73560@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoMerge branch 'ionic-cleanups'
David S. Miller [Sat, 2 Oct 2021 13:00:22 +0000 (14:00 +0100)]
Merge branch 'ionic-cleanups'

Shannon Nelson says:

====================
ionic: housekeeping updates

These are a few changes for code clean up and a couple
more lock management tweaks.

v2: rebased
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoionic: add lif param to ionic_qcq_disable
Shannon Nelson [Fri, 1 Oct 2021 18:05:57 +0000 (11:05 -0700)]
ionic: add lif param to ionic_qcq_disable

Add the lif parameter for use in an error message, and
to better match the style of most of the functions calls.

Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoionic: have ionic_qcq_disable decide on sending to hardware
Shannon Nelson [Fri, 1 Oct 2021 18:05:56 +0000 (11:05 -0700)]
ionic: have ionic_qcq_disable decide on sending to hardware

Simplify the code a little by keeping the send_to_hw decision
inside of ionic_qcq_disable rather than in the callers.  Also,
add ENXIO to the decision expression.

Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoionic: add polling to adminq wait
Shannon Nelson [Fri, 1 Oct 2021 18:05:55 +0000 (11:05 -0700)]
ionic: add polling to adminq wait

Split the adminq wait into smaller polling periods in order
to watch for broken firmware and not have to wait for the full
adminq devcmd_timeout.

Generally, adminq commands take fewer than 2 msecs.  If the
FW is busy they can take longer, but usually still under 100
msecs.  We set the polling period to 100 msecs in order to
start snooping on FW status when a command is taking longer
than usual.

Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoionic: widen queue_lock use around lif init and deinit
Shannon Nelson [Fri, 1 Oct 2021 18:05:54 +0000 (11:05 -0700)]
ionic: widen queue_lock use around lif init and deinit

Widen the coverage of the queue_lock to be sure the lif init
and lif deinit actions are protected.  This addresses a hang
seen when a Tx Timeout action was attempted at the same time
as a FW Reset was started.

Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoionic: move lif mutex setup and delete
Shannon Nelson [Fri, 1 Oct 2021 18:05:53 +0000 (11:05 -0700)]
ionic: move lif mutex setup and delete

Move creation and deletion of lif mutex a level out to
lif creation and delete, rather than in init and deinit.
This assures that nothing will get hung if anything is waiting
on the mutex while the driver is clearing the lif while handling
the fw_down/fw_up cycle.

Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoionic: check for binary values in FW ver string
Shannon Nelson [Fri, 1 Oct 2021 18:05:52 +0000 (11:05 -0700)]
ionic: check for binary values in FW ver string

If the PCI connection is broken, reading the FW version string
will only get 0xff bytes, which shouldn't get printed.  This
checks the first byte and prints only the first 4 bytes
if non-ASCII.

Also, add a limit to the string length printed when a valid
string is found, just in case it is not properly terminated.

Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoionic: remove debug stats
Shannon Nelson [Fri, 1 Oct 2021 18:05:51 +0000 (11:05 -0700)]
ionic: remove debug stats

These debug stats are not really useful, their collection is
likely detrimental to performance, and they suck up a lot
of memory which never gets used if no one ever enables the
priv-flag to print them, so just remove these bits.

Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoMerge branch 'ravb-gigabit'
David S. Miller [Sat, 2 Oct 2021 12:52:46 +0000 (13:52 +0100)]
Merge branch 'ravb-gigabit'

Biju Das says:

====================
Fillup stubs for Gigabit Ethernet driver support

The DMAC and EMAC blocks of Gigabit Ethernet IP found on RZ/G2L SoC are
similar to the R-Car Ethernet AVB IP.

The Gigabit Ethernet IP consists of Ethernet controller (E-MAC), Internal
TCP/IP Offload Engine (TOE)  and Dedicated Direct memory access controller
(DMAC).

With a few changes in the driver we can support both IPs.

This patch series is for adding Gigabit ethernet driver support to RZ/G2L SoC.

The number of patches after incorporatng RFC review comments is 18.
So split the patches into 2 patchsets (10 + 8).

This series is the second patchset, aims to fillup all the stubs for the
Gigabit Ethernet driver.

This patch series depend upon [1]
[1] https://lore.kernel.org/linux-renesas-soc/20211001150636.7500-1-biju.das.jz@bp.renesas.com/T/#t

RFC->V1:
 * used rx_max_buf_size instead of rx_2k_buffers feature bit.
 * renamed "rgeth" to "gbeth".
 * renamed ravb_rx_ring_free to ravb_rx_ring_free_rcar
 * renamed ravb_rx_ring_format to ravb_rx_ring_format_rcar
 * renamed ravb_alloc_rx_desc to ravb_alloc_rx_desc_rcar
 * renamed ravb_rcar_rx to ravb_rx_rcar
 * Added Sergey's Rb tag for patch #6.
 * Moved CSR0 initialization to patch #8.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoravb: Initialize GbEthernet E-MAC
Biju Das [Fri, 1 Oct 2021 15:06:36 +0000 (16:06 +0100)]
ravb: Initialize GbEthernet E-MAC

Initialize GbEthernet E-MAC found on RZ/G2L SoC.
This patch also renames ravb_set_rate to ravb_set_rate_rcar and
ravb_rcar_emac_init to ravb_emac_init_rcar to be consistent with
the naming convention used in sh_eth driver.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoravb: Add half_duplex to struct ravb_hw_info
Biju Das [Fri, 1 Oct 2021 15:06:35 +0000 (16:06 +0100)]
ravb: Add half_duplex to struct ravb_hw_info

RZ/G2L supports half duplex mode.
Add a half_duplex hw feature bit to struct ravb_hw_info for
supporting half duplex mode for RZ/G2L.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoravb: Add magic_pkt to struct ravb_hw_info
Biju Das [Fri, 1 Oct 2021 15:06:34 +0000 (16:06 +0100)]
ravb: Add magic_pkt to struct ravb_hw_info

E-MAC on R-Car supports magic packet detection, whereas RZ/G2L
does not support this feature. Add magic_pkt to struct ravb_hw_info
and enable this feature only for R-Car.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoravb: Add tsrq to struct ravb_hw_info
Biju Das [Fri, 1 Oct 2021 15:06:33 +0000 (16:06 +0100)]
ravb: Add tsrq to struct ravb_hw_info

R-Car AVB-DMAC has 4 Transmit start request queues, whereas
RZ/G2L has only 1 Transmit start request queue.

Add a tsrq variable to struct ravb_hw_info to handle this
difference.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoravb: Exclude gPTP feature support for RZ/G2L
Biju Das [Fri, 1 Oct 2021 15:06:32 +0000 (16:06 +0100)]
ravb: Exclude gPTP feature support for RZ/G2L

R-Car supports gPTP feature whereas RZ/G2L does not support it.
This patch excludes gtp feature support for RZ/G2L.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoravb: Initialize GbEthernet DMAC
Biju Das [Fri, 1 Oct 2021 15:06:31 +0000 (16:06 +0100)]
ravb: Initialize GbEthernet DMAC

Initialize GbEthernet DMAC found on RZ/G2L SoC.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoravb: Add support for RZ/G2L SoC
Biju Das [Fri, 1 Oct 2021 15:06:30 +0000 (16:06 +0100)]
ravb: Add support for RZ/G2L SoC

RZ/G2L SoC has Gigabit Ethernet IP consisting of Ethernet controller
(E-MAC), Internal TCP/IP Offload Engine (TOE) and Dedicated Direct
memory access controller (DMAC).

This patch adds compatible string for RZ/G2L and fills up the
ravb_hw_info struct. Function stubs are added which will be used by
gbeth_hw_info and will be filled incrementally.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoravb: Add nc_queue to struct ravb_hw_info
Biju Das [Fri, 1 Oct 2021 15:06:29 +0000 (16:06 +0100)]
ravb: Add nc_queue to struct ravb_hw_info

R-Car supports network control queue whereas RZ/G2L does not support
it. Add nc_queue to struct ravb_hw_info, so that NC queue is handled
only by R-Car.

This patch also renames ravb_rcar_dmac_init to ravb_dmac_init_rcar
to be consistent with the naming convention used in sh_eth driver.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoravb: Rename "no_ptp_cfg_active" and "ptp_cfg_active" variables
Biju Das [Fri, 1 Oct 2021 15:06:28 +0000 (16:06 +0100)]
ravb: Rename "no_ptp_cfg_active" and "ptp_cfg_active" variables

Rename the variable "no_ptp_cfg_active" with "gptp" and
"ptp_cfg_active" with "ccc_gac" to match the HW features.

There is no functional change.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Suggested-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoravb: Rename "ravb_set_features_rx_csum" function to "ravb_set_features_rcar"
Biju Das [Fri, 1 Oct 2021 15:06:27 +0000 (16:06 +0100)]
ravb: Rename "ravb_set_features_rx_csum" function to "ravb_set_features_rcar"

Rename "ravb_set_features_rx_csum" function to "ravb_set_features_rcar" and
replace the function pointer "set_rx_csum_feature" with "set_feature".

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Suggested-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoMerge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Jakub Kicinski [Sat, 2 Oct 2021 02:55:09 +0000 (19:55 -0700)]
Merge https://git./linux/kernel/git/bpf/bpf-next

Daniel Borkmann says:

====================
bpf-next 2021-10-02

We've added 85 non-merge commits during the last 15 day(s) which contain
a total of 132 files changed, 13779 insertions(+), 6724 deletions(-).

The main changes are:

1) Massive update on test_bpf.ko coverage for JITs as preparatory work for
   an upcoming MIPS eBPF JIT, from Johan Almbladh.

2) Add a batched interface for RX buffer allocation in AF_XDP buffer pool,
   with driver support for i40e and ice from Magnus Karlsson.

3) Add legacy uprobe support to libbpf to complement recently merged legacy
   kprobe support, from Andrii Nakryiko.

4) Add bpf_trace_vprintk() as variadic printk helper, from Dave Marchevsky.

5) Support saving the register state in verifier when spilling <8byte bounded
   scalar to the stack, from Martin Lau.

6) Add libbpf opt-in for stricter BPF program section name handling as part
   of libbpf 1.0 effort, from Andrii Nakryiko.

7) Add a document to help clarifying BPF licensing, from Alexei Starovoitov.

8) Fix skel_internal.h to propagate errno if the loader indicates an internal
   error, from Kumar Kartikeya Dwivedi.

9) Fix build warnings with -Wcast-function-type so that the option can later
   be enabled by default for the kernel, from Kees Cook.

10) Fix libbpf to ignore STT_SECTION symbols in legacy map definitions as it
    otherwise errors out when encountering them, from Toke Høiland-Jørgensen.

11) Teach libbpf to recognize specialized maps (such as for perf RB) and
    internally remove BTF type IDs when creating them, from Hengqi Chen.

12) Various fixes and improvements to BPF selftests.
====================

Link: https://lore.kernel.org/r/20211002001327.15169-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agonet/core: disable NET_RX_BUSY_POLL on PREEMPT_RT
Sebastian Andrzej Siewior [Fri, 1 Oct 2021 14:58:41 +0000 (16:58 +0200)]
net/core: disable NET_RX_BUSY_POLL on PREEMPT_RT

napi_busy_loop() disables preemption and performs a NAPI poll. We can't acquire
sleeping locks with disabled preemption which would be required while
__napi_poll() invokes the callback of the driver.

A threaded interrupt performing the NAPI-poll can be preempted on PREEMPT_RT.
A RT thread on another CPU may observe NAPIF_STATE_SCHED bit set and busy-spin
until it is cleared or its spin time runs out. Given it is the task with the
highest priority it will never observe the NEED_RESCHED bit set.
In this case the time is better spent by simply sleeping.

The NET_RX_BUSY_POLL is disabled by default (the system wide sysctls for
poll/read are set to zero). Disabling NET_RX_BUSY_POLL on PREEMPT_RT to avoid
wrong locking context in case it is used.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Link: https://lore.kernel.org/r/20211001145841.2308454-1-bigeasy@linutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agoMerge branch 'libbpf: Support uniform BTF-defined key/value specification across...
Andrii Nakryiko [Fri, 1 Oct 2021 22:31:51 +0000 (15:31 -0700)]
Merge branch 'libbpf: Support uniform BTF-defined key/value specification across all BPF maps'

Hengqi Chen says:

====================

Currently a bunch of (usually pretty specialized) BPF maps do not support
specifying BTF types for they key and value. For such maps, specifying
their definition like this:

  struct {
      __uint(type, BPF_MAP_TYPE_PERF_EVENT_ARRAY);
      __type(key, int);
      __type(value, int);
  } my_perf_buf SEC(".maps");

Would actually produce warnings about retrying BPF map creation without BTF.
Users are forced to know such nuances and use __uint(key_size, 4) instead.
This is non-uniform, annoying, and inconvenient.

This patch set teaches libbpf to recognize those specialized maps and removes
BTF type IDs when creating BPF map. Also, update existing BPF selftests to
exericse this change.
====================

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
3 years agoselftests/bpf: Use BTF-defined key/value for map definitions
Hengqi Chen [Thu, 30 Sep 2021 16:14:56 +0000 (00:14 +0800)]
selftests/bpf: Use BTF-defined key/value for map definitions

Change map definitions in BPF selftests to use BTF-defined
key/value types. This unifies the map definitions and ensures
libbpf won't emit warning about retrying map creation.

Signed-off-by: Hengqi Chen <hengqi.chen@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20210930161456.3444544-3-hengqi.chen@gmail.com
3 years agolibbpf: Support uniform BTF-defined key/value specification across all BPF maps
Hengqi Chen [Thu, 30 Sep 2021 16:14:55 +0000 (00:14 +0800)]
libbpf: Support uniform BTF-defined key/value specification across all BPF maps

A bunch of BPF maps do not support specifying BTF types for key and value.
This is non-uniform and inconvenient[0]. Currently, libbpf uses a retry
logic which removes BTF type IDs when BPF map creation failed. Instead
of retrying, this commit recognizes those specialized maps and removes
BTF type IDs when creating BPF map.

  [0] Closes: https://github.com/libbpf/libbpf/issues/355

Signed-off-by: Hengqi Chen <hengqi.chen@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20210930161456.3444544-2-hengqi.chen@gmail.com
3 years agoMerge tag 'mlx5-updates-2021-09-30' of git://git.kernel.org/pub/scm/linux/kernel...
Jakub Kicinski [Fri, 1 Oct 2021 21:41:38 +0000 (14:41 -0700)]
Merge tag 'mlx5-updates-2021-09-30' of git://git./linux/kernel/git/saeed/linux

Saeed Mahameed says:

====================
mlx5-updates-2021-09-30

1) From Yevgeny Kliteynik:

This patch series deals with vport handling in SW steering.

For every vport, SW steering queries FW for this vport's properties,
such as RX/TX ICM addresses to be able to add this vport as dest action.
The following patches rework vport capabilities managements and add support
for Scalable Functions (SFs).

 - Patch 1 fixes the vport number data type all over the DR code to 16 bits
   in accordance with HW spec.
 - Patch 2 replaces local SW steering WIRE_PORT macro with the existing
   mlx5 define.
 - Patch 3 adds missing query for vport 0 and and handles eswitch manager
   capabilities for ECPF (BlueField in embedded CPU mode).
 - Patch 4 fixes error messages for failure to obtain vport caps from
   different locations in the code to have the same verbosity level and
   similar wording.
 - Patch 5 adds support for csum recalculation flow tables on SFs: it
   implements these FTs management in XArray instead of the fixed size array,
   thus adding support for csum recalculation table for any valid vport.
 - Patch 6 is the main patch of this whole series: it refactors vports
   capabilities handling and adds SFs support.

2) Minor and trivial updates and cleanups

* tag 'mlx5-updates-2021-09-30' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux:
  net/mlx5e: Use array_size() helper
  net/mlx5: Use struct_size() helper in kvzalloc()
  net/mlx5: Use kvcalloc() instead of kvzalloc()
  net/mlx5: Tolerate failures in debug features while driver load
  net/mlx5: Warn for devlink reload when there are VFs alive
  net/mlx5: DR, Add missing string for action type SAMPLER
  net/mlx5: DR, init_next_match only if needed
  net/mlx5: DR, Fix typo 'offeset' to 'offset'
  net/mlx5: DR, Increase supported num of actions to 32
  net/mlx5: DR, Add support for SF vports
  net/mlx5: DR, Support csum recalculation flow table on SFs
  net/mlx5: DR, Align error messages for failure to obtain vport caps
  net/mlx5: DR, Add missing query for vport 0
  net/mlx5: DR, Replace local WIRE_PORT macro with the existing MLX5_VPORT_UPLINK
  net/mlx5: DR, Fix vport number data type to u16
====================

Link: https://lore.kernel.org/r/20210930232050.41779-1-saeed@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agobpf/tests: Add test of LDX_MEM with operand aliasing
Johan Almbladh [Fri, 1 Oct 2021 13:03:48 +0000 (15:03 +0200)]
bpf/tests: Add test of LDX_MEM with operand aliasing

This patch adds a set of tests of BPF_LDX_MEM where both operand registers
are the same register. Mainly testing 32-bit JITs that may load a 64-bit
value in two 32-bit loads, and must not overwrite the address register.

Signed-off-by: Johan Almbladh <johan.almbladh@anyfinetworks.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20211001130348.3670534-11-johan.almbladh@anyfinetworks.com
3 years agobpf/tests: Add test of ALU shifts with operand register aliasing
Johan Almbladh [Fri, 1 Oct 2021 13:03:47 +0000 (15:03 +0200)]
bpf/tests: Add test of ALU shifts with operand register aliasing

This patch adds a tests of ALU32 and ALU64 LSH/RSH/ARSH operations for the
case when the two operands are the same register. Mainly intended to test
JITs that implement ALU64 shifts with 32-bit CPU instructions.

Also renamed related helper functions for consistency with the new tests.

Signed-off-by: Johan Almbladh <johan.almbladh@anyfinetworks.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20211001130348.3670534-10-johan.almbladh@anyfinetworks.com
3 years agobpf/tests: Add exhaustive tests of BPF_ATOMIC register combinations
Johan Almbladh [Fri, 1 Oct 2021 13:03:46 +0000 (15:03 +0200)]
bpf/tests: Add exhaustive tests of BPF_ATOMIC register combinations

This patch adds tests of all register combinations for BPF_ATOMIC
operations on both BPF_W and BPF_DW sizes.

Signed-off-by: Johan Almbladh <johan.almbladh@anyfinetworks.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20211001130348.3670534-9-johan.almbladh@anyfinetworks.com
3 years agobpf/tests: Add exhaustive tests of ALU register combinations
Johan Almbladh [Fri, 1 Oct 2021 13:03:45 +0000 (15:03 +0200)]
bpf/tests: Add exhaustive tests of ALU register combinations

This patch replaces the current register combination test with new
exhaustive tests. Before, only a subset of register combinations was
tested for ALU64 DIV. Now, all combinatons of operand registers are
tested, including the case when they are the same, and for all ALU32
and ALU64 operations.

Signed-off-by: Johan Almbladh <johan.almbladh@anyfinetworks.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20211001130348.3670534-8-johan.almbladh@anyfinetworks.com
3 years agobpf/tests: Minor restructuring of ALU tests
Johan Almbladh [Fri, 1 Oct 2021 13:03:44 +0000 (15:03 +0200)]
bpf/tests: Minor restructuring of ALU tests

This patch moves the ALU LSH/RSH/ARSH reference computations into the
common reference value function. Also fix typo in constants so they
now have the intended values.

Signed-off-by: Johan Almbladh <johan.almbladh@anyfinetworks.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20211001130348.3670534-7-johan.almbladh@anyfinetworks.com
3 years agobpf/tests: Add more tests for ALU and ATOMIC register clobbering
Johan Almbladh [Fri, 1 Oct 2021 13:03:43 +0000 (15:03 +0200)]
bpf/tests: Add more tests for ALU and ATOMIC register clobbering

This patch expands the register-clobbering-during-function-call tests
to cover more all ALU32/64 MUL, DIV and MOD operations and all ATOMIC
operations. In short, if a JIT implements a complex operation with
a call to an external function, it must make sure to save and restore
all its caller-saved registers that may be clobbered by the call.

Signed-off-by: Johan Almbladh <johan.almbladh@anyfinetworks.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20211001130348.3670534-6-johan.almbladh@anyfinetworks.com
3 years agobpf/tests: Add tests to check source register zero-extension
Johan Almbladh [Fri, 1 Oct 2021 13:03:42 +0000 (15:03 +0200)]
bpf/tests: Add tests to check source register zero-extension

This patch adds tests to check that the source register is preserved when
zero-extending a 32-bit value. In particular, it checks that the source
operand is not zero-extended in-place.

Signed-off-by: Johan Almbladh <johan.almbladh@anyfinetworks.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20211001130348.3670534-5-johan.almbladh@anyfinetworks.com
3 years agobpf/tests: Add exhaustive tests of BPF_ATOMIC magnitudes
Johan Almbladh [Fri, 1 Oct 2021 13:03:41 +0000 (15:03 +0200)]
bpf/tests: Add exhaustive tests of BPF_ATOMIC magnitudes

This patch adds a series of test to verify the operation of BPF_ATOMIC
with BPF_DW and BPF_W sizes, for all power-of-two magnitudes of the
register value operand.

Also fixes a confusing typo in the comment for a related test.

Signed-off-by: Johan Almbladh <johan.almbladh@anyfinetworks.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20211001130348.3670534-4-johan.almbladh@anyfinetworks.com
3 years agobpf/tests: Add zero-extension checks in BPF_ATOMIC tests
Johan Almbladh [Fri, 1 Oct 2021 13:03:40 +0000 (15:03 +0200)]
bpf/tests: Add zero-extension checks in BPF_ATOMIC tests

This patch updates the existing tests of BPF_ATOMIC operations to verify
that a 32-bit register operand is properly zero-extended. In particular,
it checks the operation on archs that require 32-bit operands to be
properly zero-/sign-extended or the result is undefined, e.g. MIPS64.

Signed-off-by: Johan Almbladh <johan.almbladh@anyfinetworks.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20211001130348.3670534-3-johan.almbladh@anyfinetworks.com
3 years agobpf/tests: Add tests of BPF_LDX and BPF_STX with small sizes
Johan Almbladh [Fri, 1 Oct 2021 13:03:39 +0000 (15:03 +0200)]
bpf/tests: Add tests of BPF_LDX and BPF_STX with small sizes

This patch adds a series of tests to verify the behavior of BPF_LDX and
BPF_STX with BPF_B//W sizes in isolation. In particular, it checks that
BPF_LDX zero-extendeds the result, and that BPF_STX does not overwrite
adjacent bytes in memory.

BPF_ST and operations on BPF_DW size are deemed to be sufficiently
tested by existing tests.

Signed-off-by: Johan Almbladh <johan.almbladh@anyfinetworks.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20211001130348.3670534-2-johan.almbladh@anyfinetworks.com
3 years agofix up for "net: add new socket option SO_RESERVE_MEM"
Stephen Rothwell [Fri, 1 Oct 2021 13:43:30 +0000 (14:43 +0100)]
fix up for "net: add new socket option SO_RESERVE_MEM"

Some architectures do not include uapi/asm/socket.h

Fixes: 2bb2f5fb21b0 ("net: add new socket option SO_RESERVE_MEM")
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoRevert "Merge branch 'mctp-kunit-tests'"
David S. Miller [Fri, 1 Oct 2021 13:56:52 +0000 (14:56 +0100)]
Revert "Merge branch 'mctp-kunit-tests'"

This reverts commit 4f42ad2011d2fcbd89f5cdf56121271a8cd5ee5d, reversing
changes made to ea2dd331bfaaeba74ba31facf437c29044f7d4cb.

These chanfges break the build when mctp is modular.

Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agosparc: add SO_RESERVE_MEM definition.
David S. Miller [Fri, 1 Oct 2021 13:38:10 +0000 (14:38 +0100)]
sparc: add SO_RESERVE_MEM definition.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agodevlink: report maximum number of snapshots with regions
Jacob Keller [Thu, 30 Sep 2021 21:21:04 +0000 (14:21 -0700)]
devlink: report maximum number of snapshots with regions

Each region has an independently configurable number of maximum
snapshots. This information is not reported to userspace, making it not
very discoverable. Fix this by adding a new
DEVLINK_ATTR_REGION_MAX_SNAPSHOST attribute which is used to report this
maximum.

Ex:

  $devlink region
  pci/0000:af:00.0/nvm-flash: size 10485760 snapshot [] max 1
  pci/0000:af:00.0/device-caps: size 4096 snapshot [] max 10
  pci/0000:af:00.1/nvm-flash: size 10485760 snapshot [] max 1
  pci/0000:af:00.1/device-caps: size 4096 snapshot [] max 10

This information enables users to understand why a new region command
may fail due to having too many existing snapshots.

Reported-by: Gurucharan G <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoMerge branch 'mctp-kunit-tests'
David S. Miller [Fri, 1 Oct 2021 13:19:01 +0000 (14:19 +0100)]
Merge branch 'mctp-kunit-tests'

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!
====================

Signed-off-by: David S. Miller <davem@davemloft.net>