[PATCH v11 00/15] net/enetc: add new features for ENETC4 on i.MX95

[Hemant Agrawal]

Series-

Acked-by: Hemant Agrawal <hemant.agrawal at nxp.com>

On 19-08-2026 11:04, Gagandeep Singh wrote:
> V11-Changes:
>   - Added enetc4_vf.ini for VF only features.
>   - Fixed the secondary-process guards leave the burst function
>     pointers NULL
>   - Fixed rxq_info_get and txq_info_get report the doubled ring size
>   - Move the VFs only features to enetc4_vf.ini
>   - Setting the dev->data->lro
>   - Added a comment to use devargs to change delay and timeout to process
>     PSI message to avoid any interrupts stall.
>   - Fixed link_update() now rewrites RBMR on every Rx ring.
>   - Regestering - enetc4_txq_wr in VF
>   - Updated enetc4_rd64 with re-read to confirm the correctness.
>   - Removed the dead code and un-used macros.
>   - Added Vlan check for maximum allowed value.
>   - fixed pre-existing ring write function for TX path.
>
> V10-Changes:
>   - Fixed enetc4_txq_prior and enetc4_txq_wrr have no effect at queue
>     setup issue.
>   - Updated ENETC_CLASS_ID_SI_VLAN_ISO reply check.
>   - Updated enetc4.ini for VLAN offload.
>   - Added else part for burst functions selection for RSC and TSO.
>   - Updated enetc4_rd64()
>   - Fixed RBICR0 issue.
>   - Removed GENMASK.
>
> V9-Changes:
>   - Mid-body variable declaration moved to top of the function.
>   - ret=0 dead code is removed.
>   - Added check on return value of rte_intr_callback_unregister()
>   - The pre-existing reply_msg leak fixed.
>   - Added primary-process guard in enetc4_vf_dev_init
>   - Removed Flow control from enetc4.ini
>   - Fixed VF stats_reset baseline underflows on counter wrap
>   - Fixed VF vlan_pvid_set fails on every successful command
>
> V8-changes:
>   - Fixed Warning RBMR RMW races between threads by adding lock
>   - Fixed `static const` arrays in `enetc.h`
>   - Proper pthread_mutexattr_t initialization 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 (15):
>    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: add VF supported features file
>    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
>
>   MAINTAINERS                            |   1 +
>   doc/guides/nics/enetc4.rst             | 100 +++
>   doc/guides/nics/features/enetc4.ini    |   4 +
>   doc/guides/nics/features/enetc4_vf.ini |  29 +
>   doc/guides/rel_notes/release_26_11.rst |  21 +
>   drivers/net/enetc/base/enetc4_hw.h     | 148 +++-
>   drivers/net/enetc/base/enetc_hw.h      |   6 +
>   drivers/net/enetc/enetc.h              | 133 +++-
>   drivers/net/enetc/enetc4_ethdev.c      | 517 ++++++++++++--
>   drivers/net/enetc/enetc4_vf.c          | 919 ++++++++++++++++++++++---
>   drivers/net/enetc/enetc_rxtx.c         | 530 +++++++++++++-
>   11 files changed, 2223 insertions(+), 185 deletions(-)
>   create mode 100644 doc/guides/nics/features/enetc4_vf.ini
>