6.6-stable review patch. If anyone has any objections, please let me know.
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From: Hariprasad Kelam hkelam@marvell.com
[ Upstream commit 1684842147677a1279bcff95f8adb6de9a656e30 ]
There are two type of classes. "Leaf classes" that are the bottom of the class hierarchy. "Inner classes" that are neither the root class nor leaf classes. QoS rules can only specify leaf classes as targets for traffic.
Root / \ / \ 1 2 /\ / \ 4 5 classes 1,4 and 5 are leaf classes. class 2 is a inner class.
When a leaf class made as inner, or vice versa, resources associated with send queue (send queue buffers and transmit schedulers) are not getting freed.
Fixes: 5e6808b4c68d ("octeontx2-pf: Add support for HTB offload") Signed-off-by: Hariprasad Kelam hkelam@marvell.com Link: https://lore.kernel.org/r/20240523073626.4114-1-hkelam@marvell.com Signed-off-by: Paolo Abeni pabeni@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/ethernet/marvell/octeontx2/nic/qos.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/qos.c b/drivers/net/ethernet/marvell/octeontx2/nic/qos.c index 1723e9912ae07..6cddb4da85b71 100644 --- a/drivers/net/ethernet/marvell/octeontx2/nic/qos.c +++ b/drivers/net/ethernet/marvell/octeontx2/nic/qos.c @@ -1407,7 +1407,10 @@ static int otx2_qos_leaf_to_inner(struct otx2_nic *pfvf, u16 classid, otx2_qos_read_txschq_cfg(pfvf, node, old_cfg);
/* delete the txschq nodes allocated for this node */ + otx2_qos_disable_sq(pfvf, qid); + otx2_qos_free_hw_node_schq(pfvf, node); otx2_qos_free_sw_node_schq(pfvf, node); + pfvf->qos.qid_to_sqmap[qid] = OTX2_QOS_INVALID_SQ;
/* mark this node as htb inner node */ WRITE_ONCE(node->qid, OTX2_QOS_QID_INNER); @@ -1554,6 +1557,7 @@ static int otx2_qos_leaf_del_last(struct otx2_nic *pfvf, u16 classid, bool force dwrr_del_node = true;
/* destroy the leaf node */ + otx2_qos_disable_sq(pfvf, qid); otx2_qos_destroy_node(pfvf, node); pfvf->qos.qid_to_sqmap[qid] = OTX2_QOS_INVALID_SQ;