On Fri, 13 Jun 2025 04:20:23 -0700 Erni Sri Satya Vennela wrote: > This patchset introduces hardware-backed bandwidth rate limiting > for MANA NICs via the net_shaper_ops interface, enabling efficient and > fine-grained traffic shaping directly on the device. > > Previously, MANA lacked a mechanism for user-configurable bandwidth > control. With this addition, users can now configure shaping parameters, > allowing better traffic management and performance isolation. > > The implementation includes the net_shaper_ops callbacks in the MANA > driver and supports one shaper per vport. Add shaping support via > mana_set_bw_clamp(), allowing the configuration of bandwidth rates > in 100 Mbps increments (minimum 100 Mbps). The driver validates input > and rejects unsupported values. On failure, it restores the previous > configuration which is queried using mana_query_link_cfg() or > retains the current state. > > To prevent potential deadlocks introduced by net_shaper_ops, switch to > _locked variants of NAPI APIs when netdevops_lock is held during > VF setup and teardown. > > Also, Add support for ethtool get_link_ksettings to report the maximum > link speed supported by the SKU in mbps. > > These APIs when invoked on hardware that are older or that do > not support these APIs, the speed would be reported as UNKNOWN and > the net-shaper calls to set speed would fail.
Failed to apply patch: Applying: net: mana: Fix potential deadlocks in mana napi ops error: patch fragment without header at line 23: @@ -2102,9 +2108,11 @@ static void mana_destroy_rxq(struct mana_port_context *apc, error: could not build fake ancestor hint: Use 'git am --show-current-patch=diff' to see the failed patch hint: When you have resolved this problem, run "git am --continue". hint: If you prefer to skip this patch, run "git am --skip" instead. hint: To restore the original branch and stop patching, run "git am --abort". hint: Disable this message with "git config set advice.mergeConflict false" Patch failed at 0001 net: mana: Fix potential deadlocks in mana napi ops please rebase -- pw-bot: cr
