diff options
| author | Victor Raj <victor.raj@intel.com> | 2019-02-08 12:50:40 -0800 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2019-02-25 08:56:01 -0800 |
| commit | f70b9d5f4426ceee885cd6799fad4f59d33c1ce7 (patch) | |
| tree | cc3f045a6962c7a7bfc7eb63aa23e9a64f5fb52d /drivers/net/ethernet/intel/ice/ice_sched.c | |
| parent | 6e9650d533dda4acf8baff7ac4bb5d8193148c37 (diff) | |
| download | linux-f70b9d5f4426ceee885cd6799fad4f59d33c1ce7.tar.bz2 | |
ice: check for a leaf node presence
Check for a leaf node presence for a given VSI. This check is required
before removing a VSI since VSIs can't be removed with enabled queues
(with leaf nodes) from the FW scheduler tree unless its a reset.
Signed-off-by: Victor Raj <victor.raj@intel.com>
Reviewed-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/ice/ice_sched.c')
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_sched.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_sched.c b/drivers/net/ethernet/intel/ice/ice_sched.c index f355f59d8b64..56049739a250 100644 --- a/drivers/net/ethernet/intel/ice/ice_sched.c +++ b/drivers/net/ethernet/intel/ice/ice_sched.c @@ -1616,6 +1616,23 @@ ice_sched_rm_agg_vsi_info(struct ice_port_info *pi, u16 vsi_handle) } /** + * ice_sched_is_leaf_node_present - check for a leaf node in the sub-tree + * @node: pointer to the sub-tree node + * + * This function checks for a leaf node presence in a given sub-tree node. + */ +static bool ice_sched_is_leaf_node_present(struct ice_sched_node *node) +{ + u8 i; + + for (i = 0; i < node->num_children; i++) + if (ice_sched_is_leaf_node_present(node->children[i])) + return true; + /* check for a leaf node */ + return (node->info.data.elem_type == ICE_AQC_ELEM_TYPE_LEAF); +} + +/** * ice_sched_rm_vsi_cfg - remove the VSI and its children nodes * @pi: port information structure * @vsi_handle: software VSI handle @@ -1649,6 +1666,12 @@ ice_sched_rm_vsi_cfg(struct ice_port_info *pi, u16 vsi_handle, u8 owner) if (!vsi_node) continue; + if (ice_sched_is_leaf_node_present(vsi_node)) { + ice_debug(pi->hw, ICE_DBG_SCHED, + "VSI has leaf nodes in TC %d\n", i); + status = ICE_ERR_IN_USE; + goto exit_sched_rm_vsi_cfg; + } while (j < vsi_node->num_children) { if (vsi_node->children[j]->owner == owner) { ice_free_sched_node(pi, vsi_node->children[j]); |