[PATCH v8 00/14] net/enetc: add new features for ENETC4 on i.MX95

[Gagandeep Singh]

V8-changes:
 - Fixed Warning RBMR RMW races between threads by adding lock
 - Fixed `static const` arrays in `enetc.h`
 - Proper pthread_mutexattr_t intialization added as suggested by AI
 - VSIMSGSR stale re-read race is eliminated

V7-changes:
 - added missing 14th patch.

V6-changes:
 - fixed free() on memory allocated with rte_zmalloc().
 - fixed eventfd and vector-list leak on interrupt teardown
 - fixed Rx ring doubling still bypasses
 - fixed VSI-PSI transaction issued from the interrupt handler
 - fixed the free-and-reallocate of msg is unnecessary churn
 - fixed unsynchronized access to tx_pause_active and RBMR
 - fixed signed shift overflow in the register-dump version field
 - fixed the fw_size == 0 early return reports the length of "0.0"
 - unwanted blank lines removed.
 - parse_txq_prior() returns updated.

V5-changes:
 - Patch 1 Build fixes which includes:
    'prev_seg' undeclared fixed.
    redefinition of 'dev_rx_offloads_sup' fixed.
    Error: duplicate rx_enable declaration fixed.
   PF loses Scattered Rx and Multi-segment Tx
 - mbuf leak in enetc_xmit_pkts_lso() fixed.
 - fixed conversion on ENETC4_TXBD_FLAGS_F issue.
 - fixed link speed decode has no upper bound.
 - fixed mailbox ops added to the no-VSI ops table.
 - new devargs documented.

V4-changes:
 - fix doc build issue: WARNING: undefined label: pmd_build_and_test

v3-changes:
 - fix doc build issue.
 - fix compilation issue on fedore:43-gcc-minsize

V2-changes:
 - compilation fixes.

V1-changes:
This series adds new PMD features to the ENETC4 driver targeting the
NXP i.MX95 NETC IP.

The series covers:

 - KEEP_CRC Rx offload: preserve the Ethernet FCS in the receive buffer.
 - TSO: TCP Segmentation Offload for the VF Tx path.
 - RSC/LRO: hardware Receive Segment Coalesce for PF and VF Rx paths.
 - Link speed code: extend the PF-to-VF mailbox field from 4-bit to
   8-bit to support speeds beyond 10G.
 - Firmware version: report the NETC IP version via fw_version_get.
 - Register dump: dump SI, port (PF) and BD ring registers.
 - Ring parameters: implement rxq_info_get / txq_info_get for the VF.
 - Link-up interrupt: refresh the cached link speed on each VF link-up
   interrupt so that link_update returns the current speed immediately.
 - Stats reset: software snapshot/delta approach for VF counter reset.
 - Per-queue Rx interrupt: MSI-X per-queue Rx interrupts for the VF,
   enabling interrupt-driven receive with l3fwd-power.
 - SI VLAN: hardware port VLAN insertion/removal for PF and VF.
 - VF link status bitmask: switch VF link status to bitmask encoding
   to align with the PF and newer kernel driver conventions.
 - TX PAUSE: VF sets Rx congestion mode when the PF signals TX PAUSE
   negotiated on the wire; adds Flow control = Y to enetc4.ini.
 - WRR Tx scheduler: per-ring WRR weights via enetc4_txq_wrr devarg.

Gagandeep Singh (14):
  net/enetc: add keep-CRC Rx offload for ENETC4
  net/enetc: add TSO support for ENETC4 VF
  net/enetc: add RSC (hardware LRO) support for ENETC4
  net/enetc: extend PF-VF link speed field to 8 bits
  net/enetc: support firmware version get for VF
  net/enetc: support registers dump
  net/enetc: support ethtool ring parameters
  net/enetc: refresh link speed on VF link-up interrupt
  net/enetc: support stats reset for VF
  net/enetc4: add per-queue Rx interrupt support for VF
  net/enetc4: add SI-based port VLAN insertion and removal
  net/enetc4: update VF link status to bitmask encoding
  net/enetc4: enable Tx PAUSE via VF Rx congestion mode
  net/enetc4: add WRR Tx scheduler devarg for VF rings

 doc/guides/nics/enetc4.rst             | 100 +++
 doc/guides/nics/features/enetc4.ini    |   8 +
 doc/guides/rel_notes/release_26_11.rst |  21 +
 drivers/net/enetc/base/enetc4_hw.h     | 128 +++-
 drivers/net/enetc/base/enetc_hw.h      |   6 +
 drivers/net/enetc/enetc.h              | 132 +++-
 drivers/net/enetc/enetc4_ethdev.c      | 454 +++++++++++--
 drivers/net/enetc/enetc4_vf.c          | 860 +++++++++++++++++++++----
 drivers/net/enetc/enetc_rxtx.c         | 530 ++++++++++++++-
 9 files changed, 2062 insertions(+), 177 deletions(-)

-- 
2.25.1