linux.git/drivers/net, branch v6.3-rc2

Merge tag 'net-6.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2023-03-09T18:56:58+00:00

Pull networking fixes from Paolo Abeni:
 "Including fixes from netfilter and bpf.

  Current release - regressions:

   - core: avoid skb end_offset change in __skb_unclone_keeptruesize()

   - sched:
      - act_connmark: handle errno on tcf_idr_check_alloc
      - flower: fix fl_change() error recovery path

   - ieee802154: prevent user from crashing the host

  Current release - new code bugs:

   - eth: bnxt_en: fix the double free during device removal

   - tools: ynl:
      - fix enum-as-flags in the generic CLI
      - fully inherit attrs in subsets
      - re-license uniformly under GPL-2.0 or BSD-3-clause

  Previous releases - regressions:

   - core: use indirect calls helpers for sk_exit_memory_pressure()

   - tls:
      - fix return value for async crypto
      - avoid hanging tasks on the tx_lock

   - eth: ice: copy last block omitted in ice_get_module_eeprom()

  Previous releases - always broken:

   - core: avoid double iput when sock_alloc_file fails

   - af_unix: fix struct pid leaks in OOB support

   - tls:
      - fix possible race condition
      - fix device-offloaded sendpage straddling records

   - bpf:
      - sockmap: fix an infinite loop error
      - test_run: fix &xdp_frame misplacement for LIVE_FRAMES
      - fix resolving BTF_KIND_VAR after ARRAY, STRUCT, UNION, PTR

   - netfilter: tproxy: fix deadlock due to missing BH disable

   - phylib: get rid of unnecessary locking

   - eth: bgmac: fix *initial* chip reset to support BCM5358

   - eth: nfp: fix csum for ipsec offload

   - eth: mtk_eth_soc: fix RX data corruption issue

  Misc:

   - usb: qmi_wwan: add telit 0x1080 composition"

* tag 'net-6.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (64 commits)
  tools: ynl: fix enum-as-flags in the generic CLI
  tools: ynl: move the enum classes to shared code
  net: avoid double iput when sock_alloc_file fails
  af_unix: fix struct pid leaks in OOB support
  eth: fealnx: bring back this old driver
  net: dsa: mt7530: permit port 5 to work without port 6 on MT7621 SoC
  net: microchip: sparx5: fix deletion of existing DSCP mappings
  octeontx2-af: Unlock contexts in the queue context cache in case of fault detection
  net/smc: fix fallback failed while sendmsg with fastopen
  ynl: re-license uniformly under GPL-2.0 OR BSD-3-Clause
  mailmap: update entries for Stephen Hemminger
  mailmap: add entry for Maxim Mikityanskiy
  nfc: change order inside nfc_se_io error path
  ethernet: ice: avoid gcc-9 integer overflow warning
  ice: don't ignore return codes in VSI related code
  ice: Fix DSCP PFC TLV creation
  net: usb: qmi_wwan: add Telit 0x1080 composition
  net: usb: cdc_mbim: avoid altsetting toggling for Telit FE990
  netfilter: conntrack: adopt safer max chain length
  net: tls: fix device-offloaded sendpage straddling records
  ...

Merge branch '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue

2023-03-09T10:45:08+00:00

Tony Nguyen says:

====================
Intel Wired LAN Driver Updates 2023-03-07 (ice)

This series contains updates to ice driver only.

Dave removes masking from pfcena field as it was incorrectly preventing
valid traffic classes from being enabled.

Michal resolves various smatch issues such as not propagating error
codes and returning 0 explicitly.

Arnd Bergmann resolves gcc-9 warning for integer overflow.

* '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue:
  ethernet: ice: avoid gcc-9 integer overflow warning
  ice: don't ignore return codes in VSI related code
  ice: Fix DSCP PFC TLV creation
====================

Link: https://lore.kernel.org/r/20230307220714.3997294-1-anthony.l.nguyen@intel.com
Signed-off-by: Paolo Abeni

eth: fealnx: bring back this old driver

2023-03-09T07:22:04+00:00

This reverts commit d5e2d038dbece821f1af57acbeded3aa9a1832c1.

We have a report of this chip being used on a

  SURECOM EP-320X-S 100/10M Ethernet PCI Adapter

which could still have been purchased in some parts
of the world 3 years ago.

Cc: stable@vger.kernel.org
Link: https://bugzilla.kernel.org/show_bug.cgi?id=217151
Fixes: d5e2d038dbec ("eth: fealnx: delete the driver for Myson MTD-800")
Link: https://lore.kernel.org/r/20230307171930.4008454-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski

net: dsa: mt7530: permit port 5 to work without port 6 on MT7621 SoC

2023-03-09T07:14:28+00:00

The MT7530 switch from the MT7621 SoC has 2 ports which can be set up as
internal: port 5 and 6. Arınç reports that the GMAC1 attached to port 5
receives corrupted frames, unless port 6 (attached to GMAC0) has been
brought up by the driver. This is true regardless of whether port 5 is
used as a user port or as a CPU port (carrying DSA tags).

Offline debugging (blind for me) which began in the linked thread showed
experimentally that the configuration done by the driver for port 6
contains a step which is needed by port 5 as well - the write to
CORE_GSWPLL_GRP2 (note that I've no idea as to what it does, apart from
the comment "Set core clock into 500Mhz"). Prints put by Arınç show that
the reset value of CORE_GSWPLL_GRP2 is RG_GSWPLL_POSDIV_500M(1) |
RG_GSWPLL_FBKDIV_500M(40) (0x128), both on the MCM MT7530 from the
MT7621 SoC, as well as on the standalone MT7530 from MT7623NI Bananapi
BPI-R2. Apparently, port 5 on the standalone MT7530 can work under both
values of the register, while on the MT7621 SoC it cannot.

The call path that triggers the register write is:

mt753x_phylink_mac_config() for port 6
-> mt753x_pad_setup()
   -> mt7530_pad_clk_setup()

so this fully explains the behavior noticed by Arınç, that bringing port
6 up is necessary.

The simplest fix for the problem is to extract the register writes which
are needed for both port 5 and 6 into a common mt7530_pll_setup()
function, which is called at mt7530_setup() time, immediately after
switch reset. We can argue that this mirrors the code layout introduced
in mt7531_setup() by commit 42bc4fafe359 ("net: mt7531: only do PLL once
after the reset"), in that the PLL setup has the exact same positioning,
and further work to consolidate the separate setup() functions is not
hindered.

Testing confirms that:

- the slight reordering of writes to MT7530_P6ECR and to
  CORE_GSWPLL_GRP1 / CORE_GSWPLL_GRP2 introduced by this change does not
  appear to cause problems for the operation of port 6 on MT7621 and on
  MT7623 (where port 5 also always worked)

- packets sent through port 5 are not corrupted anymore, regardless of
  whether port 6 is enabled by phylink or not (or even present in the
  device tree)

My algorithm for determining the Fixes: tag is as follows. Testing shows
that some logic from mt7530_pad_clk_setup() is needed even for port 5.
Prior to commit ca366d6c889b ("net: dsa: mt7530: Convert to PHYLINK
API"), a call did exist for all phy_is_pseudo_fixed_link() ports - so
port 5 included. That commit replaced it with a temporary "Port 5 is not
supported!" comment, and the following commit 38f790a80560 ("net: dsa:
mt7530: Add support for port 5") replaced that comment with a
configuration procedure in mt7530_setup_port5() which was insufficient
for port 5 to work. I'm laying the blame on the patch that claimed
support for port 5, although one would have also needed the change from
commit c3b8e07909db ("net: dsa: mt7530: setup core clock even in TRGMII
mode") for the write to be performed completely independently from port
6's configuration.

Thanks go to Arınç for describing the problem, for debugging and for
testing.

Reported-by: Arınç ÜNAL 
Link: https://lore.kernel.org/netdev/f297c2c4-6e7c-57ac-2394-f6025d309b9d@arinc9.com/
Fixes: 38f790a80560 ("net: dsa: mt7530: Add support for port 5")
Signed-off-by: Vladimir Oltean 
Tested-by: Arınç ÜNAL 
Reviewed-by: Simon Horman 
Link: https://lore.kernel.org/r/20230307155411.868573-1-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski

net: microchip: sparx5: fix deletion of existing DSCP mappings

2023-03-08T13:07:59+00:00

Fix deletion of existing DSCP mappings in the APP table.

Adding and deleting DSCP entries are replicated per-port, since the
mapping table is global for all ports in the chip. Whenever a mapping
for a DSCP value already exists, the old mapping is deleted first.
However, it is only deleted for the specified port. Fix this by calling
sparx5_dcb_ieee_delapp() instead of dcb_ieee_delapp() as it ought to be.

Reproduce:

// Map and remap DSCP value 63
$ dcb app add dev eth0 dscp-prio 63:1
$ dcb app add dev eth0 dscp-prio 63:2

$ dcb app show dev eth0 dscp-prio
dscp-prio 63:2

$ dcb app show dev eth1 dscp-prio
dscp-prio 63:1 63:2 <-- 63:1 should not be there

Fixes: 8dcf69a64118 ("net: microchip: sparx5: add support for offloading dscp table")
Signed-off-by: Daniel Machon 
Reviewed-by: Simon Horman 
Signed-off-by: David S. Miller

octeontx2-af: Unlock contexts in the queue context cache in case of fault detection

2023-03-08T13:06:32+00:00

NDC caches contexts of frequently used queue's (Rx and Tx queues)
contexts. Due to a HW errata when NDC detects fault/poision while
accessing contexts it could go into an illegal state where a cache
line could get locked forever. To makesure all cache lines in NDC
are available for optimum performance upon fault/lockerror/posion
errors scan through all cache lines in NDC and clear the lock bit.

Fixes: 4a3581cd5995 ("octeontx2-af: NPA AQ instruction enqueue support")
Signed-off-by: Suman Ghosh 
Signed-off-by: Sunil Kovvuri Goutham 
Signed-off-by: Sai Krishna 
Reviewed-by: Simon Horman 
Signed-off-by: David S. Miller

ethernet: ice: avoid gcc-9 integer overflow warning

2023-03-07T21:02:01+00:00

With older compilers like gcc-9, the calculation of the vlan
priority field causes a false-positive warning from the byteswap:

In file included from drivers/net/ethernet/intel/ice/ice_tc_lib.c:4:
drivers/net/ethernet/intel/ice/ice_tc_lib.c: In function 'ice_parse_cls_flower':
include/uapi/linux/swab.h:15:15: error: integer overflow in expression '(int)(short unsigned int)((int)match.key->..vlan_priority << 13) & 57344 & 255' of type 'int' results in '0' [-Werror=overflow]
   15 |  (((__u16)(x) & (__u16)0x00ffU) << 8) |   \
      |   ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~
include/uapi/linux/swab.h:106:2: note: in expansion of macro '___constant_swab16'
  106 |  ___constant_swab16(x) :   \
      |  ^~~~~~~~~~~~~~~~~~
include/uapi/linux/byteorder/little_endian.h:42:43: note: in expansion of macro '__swab16'
   42 | #define __cpu_to_be16(x) ((__force __be16)__swab16((x)))
      |                                           ^~~~~~~~
include/linux/byteorder/generic.h:96:21: note: in expansion of macro '__cpu_to_be16'
   96 | #define cpu_to_be16 __cpu_to_be16
      |                     ^~~~~~~~~~~~~
drivers/net/ethernet/intel/ice/ice_tc_lib.c:1458:5: note: in expansion of macro 'cpu_to_be16'
 1458 |     cpu_to_be16((match.key->vlan_priority <<
      |     ^~~~~~~~~~~

After a change to be16_encode_bits(), the code becomes more
readable to both people and compilers, which avoids the warning.

Fixes: 34800178b302 ("ice: Add support for VLAN priority filters in switchdev")
Suggested-by: Alexander Lobakin 
Signed-off-by: Arnd Bergmann 
Reviewed-by: Alexander Lobakin 
Tested-by: Sujai Buvaneswaran 
Signed-off-by: Tony Nguyen

ice: don't ignore return codes in VSI related code

2023-03-07T21:02:01+00:00

There were few smatch warnings reported by Dan:
- ice_vsi_cfg_xdp_txqs can return 0 instead of ret, which is cleaner
- return values in ice_vsi_cfg_def were ignored
- in ice_vsi_rebuild return value was ignored in case rebuild failed,
  it was a never reached code, however, rewrite it for clarity.
- ice_vsi_cfg_tc can return 0 instead of ret

Fixes: 6624e780a577 ("ice: split ice_vsi_setup into smaller functions")
Reported-by: Dan Carpenter 
Signed-off-by: Michal Swiatkowski 
Tested-by: Gurucharan G  (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen

ice: Fix DSCP PFC TLV creation

2023-03-07T21:02:01+00:00

When creating the TLV to send to the FW for configuring DSCP mode PFC,the
PFCENABLE field was being masked with a 4 bit mask (0xF), but this is an 8
bit bitmask for enabled classes for PFC.  This means that traffic classes
4-7 could not be enabled for PFC.

Remove the mask completely, as it is not necessary, as we are assigning 8
bits to an 8 bit field.

Fixes: 2a87bd73e50d ("ice: Add DSCP support")
Signed-off-by: Dave Ertman 
Signed-off-by: Karen Ostrowska 
Tested-by: Gurucharan G  (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen

net: usb: qmi_wwan: add Telit 0x1080 composition

2023-03-07T14:27:29+00:00

Add the following Telit FE990 composition:

0x1080: tty, adb, rmnet, tty, tty, tty, tty

Signed-off-by: Enrico Sau 
Link: https://lore.kernel.org/r/20230306120528.198842-1-enrico.sau@gmail.com
Signed-off-by: Paolo Abeni