[PATCH v2 00/15] Wangxun fixes and new features

This series addresses link-related issues on Wangxun Amber-lite 25G/40G NICs (CR/KR training, hot-plug, 10G link state), and additionally refines U
DP offload handling.

---
v2:
 - add a new commit to handle 10G config on dual-speed DAC
 - P02: handle TXGBE_ERR_PHY_INIT_NOT_DONE before the timeout split and leave link_valid untouched.
 - P07: resolve the inner tunnel type in a local variable instead of rewriting mbuf->ol_flags.
        check the rte_pktmbuf_read() result for short or mis-annotated packets.
        use RTE_GENEVE_DEFAULT_PORT instead of the literal 6081.
        add a Fixes: tag pointing to the commit that introduced the tunnel offload handling.
 - P10: split into a bug-fix commit and a feature commit.
        document both devargs in the NIC guide and the release notes.
 - P11: check the acquire_swfw_sync() result and only touch I2C while the semaphore is held.
        replace the magic numbers with named constants.
        add the release notes entry.
 - P12: drop the stray C99 comment on the AN-config flag assignment that checkpatch rejects.
 - P13: reword the message to state that 40G active cables are handled through the optical path.
        use txgbe_is_dac_cable() in the 40G FFE selection to match the 25G path.
---

---
Not changed in this revision:

 - P11: enable_tx_laser() is not gated by laser_off. laser_off only
   controls whether the Tx laser is brought down on port stop, while
   enable_tx_laser() is unconditionally called from dev_start() and
   dev_set_link_up() and must always bring the laser up, otherwise the
   default (laser_off=0) configuration would never bring the link up.

 - P11: no extra restore of PMD_CFG0 bit 1 on the DAC path. Bits 19:12
   are restored by txgbe_e56_set_phy_link_mode() and
   txgbe_set_link_to_amlite(); bit 1 (PMD enable) is also restored by
   txgbe_e56_set_phy_link_mode(), which the xpcs AN path calls on link
   up, so no additional write is required.

 - P12: no total iteration bound was added to txgbe_e56_exchange_page().
   The loop is bounded per page and exits when the AN FSM reaches 0x8,
   so it does not hang in a normal Clause 73 flow. As this is hardware
   related configuration, we leave the current behaviour unchanged for
   now.
---

Zaiyu Wang (15):
  net/txgbe: fix failure to configure 10G on dual-speed DAC
  net/txgbe: fix e56 PHY configuration error
  net/txgbe: fix incorrect link state in 10G forced mode
  net/txgbe: do not force reconfig on link retry
  net/txgbe: set i2c sda hold time
  net/txgbe: fix link speed display info for 10G mode
  net/txgbe: remove stale outer UDP checksum offload flag
  net/txgbe: add offload support for tunnel type UDP
  net/txgbe: fix SFP hot-plug when auto-negotiation is on
  net/txgbe: fix DAC hot-plug on 40G NIC with auto-negotiation
  net/txgbe: fix 40G FFE tuning applied to first lane only
  net/txgbe: add pre2 and backplane capability devargs
  net/txgbe: add devarg to turn off Tx laser for 40G NIC
  net/txgbe: fix CR/KR link training and recovery
  net/txgbe: align link capabilities and DAC classification

 doc/guides/nics/txgbe.rst              |  18 +++
 doc/guides/rel_notes/release_26_07.rst |   8 ++
 drivers/net/txgbe/base/txgbe_aml.c     |   3 +-
 drivers/net/txgbe/base/txgbe_aml40.c   | 100 +++++++++++++--
 drivers/net/txgbe/base/txgbe_e56.c     |  14 +--
 drivers/net/txgbe/base/txgbe_e56.h     |   6 +
 drivers/net/txgbe/base/txgbe_e56_bp.c  | 161 +++++++++++++++----------
 drivers/net/txgbe/base/txgbe_e56_bp.h  |   2 +
 drivers/net/txgbe/base/txgbe_hw.c      |  37 ++++++
 drivers/net/txgbe/base/txgbe_phy.c     |  13 ++
 drivers/net/txgbe/base/txgbe_phy.h     |   7 ++
 drivers/net/txgbe/base/txgbe_regs.h    |   3 +
 drivers/net/txgbe/base/txgbe_type.h    |  17 ++-
 drivers/net/txgbe/txgbe_ethdev.c       | 120 ++++++++++++++++--
 drivers/net/txgbe/txgbe_rxtx.c         |  29 ++++-
 15 files changed, 437 insertions(+), 101 deletions(-)

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2.55.0.windows.2