On Fri, 15 May 2026 12:28:34 -0700 Long Li <[email protected]> wrote:
> This series fixes several issues in the netvsc PMD's VF hot-plug retry > logic and adds support for MANA service reset (suspend/resume) recovery. > > Patches 1-5 fix the VF hot-add retry path to handle Azure-specific > timing issues: slow MANA driver probe (>100s), udev interface renames, > asynchronous mana_ib registration, and multi-NIC staggered VF > appearance. > > Patch 6 fixes per-queue stats forwarding from VF to netvsc. > > Patch 7 adds recovery event handling for MANA service resets, where > the kernel suspends/resumes the VF without PCI remove. > > v3: > - Patch 1: wrapped rte_eal_alarm_set lines to fix checkpatch > line-length warning > - Patch 4: changed "retry loop exiting" log from NOTICE to DEBUG > to avoid noise on every successful VF re-attach > - Patch 6: removed dead -ENOTSUP fallback to rte_eth_stats_get, > replaced with direct -ENOTSUP return; documented caller contract > for zeroed buffers > - Patch 7: deferred all recovery callbacks via rte_eal_alarm_set > consistent with INTR_RMV pattern; dropped unlocked vf_attached > guard in recovery_failed; cancel new alarms in hn_vf_close > > v2: > - Patch 1: added comment explaining why indefinite retry is safe > - Patch 2: changed SIOCGIFHWADDR retry log to DEBUG > - Patch 3: restored ERR log for non-ENODEV/EEXIST failures > - Patch 4: changed per-iteration logs from NOTICE to DEBUG; > used RTE_ETHER_ADDR_PRT_FMT macros > - Patch 5: fixed commit message (limit 120 not 30); changed > mac_retry log to DEBUG; explicit NULL comparisons > - Patch 6: added comment for direct dev_ops call; added -ENOTSUP > fallback > - Patch 7: added dev_started check in recovery_success; added > vf_attached guard in recovery_failed > > Long Li (7): > net/netvsc: retry VF hotplug indefinitely until PCI device disappears > net/netvsc: retry on SIOCGIFHWADDR failure during VF hotplug > net/netvsc: retry full probe when IB device not ready during hotplug > net/netvsc: add debug logging for VF hotplug retry > net/netvsc: retry when no matching MAC found in net directory > net/netvsc: forward per-queue stats from VF device > net/netvsc: handle VF recovery events for service reset > > drivers/net/netvsc/hn_ethdev.c | 142 +++++++++++++++++++++---- > drivers/net/netvsc/hn_var.h | 1 + > drivers/net/netvsc/hn_vf.c | 182 ++++++++++++++++++++++++++++++++- > 3 files changed, 302 insertions(+), 23 deletions(-) > Applied to next-net
