[PATCH v3 net-next 0/3] amd-xgbe: TX resilience improvements for link-down handling

[Raju Rangoju <Raju.Rangoju@amd.com>]

This series enhances the AMD 10GbE driver's TX queue handling during
link-down events to improve resilience, prevent resource leaks, and
enable fast failover in link aggregation configurations.

The three patches form a complete link-down handling solution:

1. Patch 1: Fast detection (know quickly when link goes down)
2. Patch 2: Quick response (stop TX immediately, skip waits)
3. Patch 3: Clean recovery (reclaim abandoned resources)

Changes since v2:
 - remove the stale function xgbe_reset_tx_queues(), otherwise it would
   result in undefined symbol during linking.

Changes since v1:
 - The original patch is split into multiple patches, to better
   isolate each specific improvements.

Raju Rangoju (3):
  amd-xgbe: add adaptive link status polling
  amd-xgbe: optimize TX shutdown on link-down
  amd-xgbe: add TX descriptor cleanup for link-down

 drivers/net/ethernet/amd/xgbe/xgbe-common.h |  4 +
 drivers/net/ethernet/amd/xgbe/xgbe-dev.c    | 86 ++++++++++++++++++---
 drivers/net/ethernet/amd/xgbe/xgbe-drv.c    | 67 ++++++++++++++--
 drivers/net/ethernet/amd/xgbe/xgbe-mdio.c   | 18 +++++
 4 files changed, 158 insertions(+), 17 deletions(-)

-- 
2.34.1