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Merge branch 'net-enetc-sr-iov-improvements-and-enetc-v4-vf-support'

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Wei Fang says:

====================
net: enetc: SR-IOV improvements and ENETC v4 VF support

This series enhances SR-IOV support for ENETC v1 and adds VF support
for ENETC v4. For ENETC v1, the trusted VF management and per-VF
configuration query via ndo_get_vf_config() are added. For ENETC v4,
preliminary VF support is introduced for i.MX94 and i.MX95 platforms.

On the PF side, the series introduces trust level management and MAC
address assignment for VFs, and implements ndo_get_vf_config() so that
userspace tools such as 'ip link show' can query the current per-VF
configuration. The PSI-to-VSI messaging infrastructure is extended to
handle link status and link speed queries from VFs, enabling DPDK-owned
VFs to obtain accurate link information from the PF.

On the VF side, MAC address filtering is implemented via the VSI-to-PSI
mailbox, supporting both unicast/multicast hash filters and promiscuous
mode control. Since the ndo_set_rx_mode callback is invoked with BH
disabled and is incompatible with the mailbox polling path,
ndo_set_rx_mode_async is used instead. Link status notifications are also
supported: the VF registers with the PF and receives PSI-to-VSI messages
on every PF link transition, keeping the VF carrier state in sync without
polling.

VF Function Level Reset is handled explicitly to restore the PF-managed
MAC promiscuous policy after each reset, since the hardware default after
FLR enables promiscuous mode regardless of the policy set by the PF
driver.

Several preparatory refactors are included to share infrastructure
between the PF and VF drivers, such as moving msg_task and mac_filter
from struct enetc_pf into the common struct enetc_si.
====================

Link: https://patch.msgid.link/20260909100733.1139689-1-wei.fang@oss.nxp.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Paolo Abeni 2026-09-15 12:08:37 +02:00
commit 1142eb185b
15 changed files with 1568 additions and 127 deletions
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