Commit b56e4d66 authored by Lorenzo Bianconi's avatar Lorenzo Bianconi Committed by Jakub Kicinski
Browse files

net: airoha: Enforce ETS Qdisc priomap 



EN7581 SoC supports fixed QoS band priority where WRR queues have lowest
priorities with respect to SP ones.
E.g: WRR0, WRR1, .., WRRm, SP0, SP1, .., SPn

Enforce ETS Qdisc priomap according to the hw capabilities.

Suggested-by: default avatarDavide Caratti <dcaratti@redhat.com>
Signed-off-by: default avatarLorenzo Bianconi <lorenzo@kernel.org>
Reviewed-by: default avatarDavide Caratti <dcaratti@redhat.com>
Link: https://patch.msgid.link/20250112-airoha_ets_priomap-v1-1-fb616de159ba@kernel.org


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 62507e38

drivers/net/ethernet/mediatek/airoha_eth.c

+15 −2
Original line number Diff line number Diff line
@@ -2793,7 +2793,7 @@ static int airoha_qdma_set_tx_ets_sched(struct airoha_gdm_port *port, 
	struct tc_ets_qopt_offload_replace_params *p = &opt->replace_params;

	enum tx_sched_mode mode = TC_SCH_SP;

	u16 w[AIROHA_NUM_QOS_QUEUES] = {};

	int i, nstrict = 0;

	int i, nstrict = 0, nwrr, qidx;



	if (p->bands > AIROHA_NUM_QOS_QUEUES)

		return -EINVAL;
@@ -2807,7 +2807,20 @@ static int airoha_qdma_set_tx_ets_sched(struct airoha_gdm_port *port, 
	if (nstrict == AIROHA_NUM_QOS_QUEUES - 1)

		return -EINVAL;



	for (i = 0; i < p->bands - nstrict; i++)

	/* EN7581 SoC supports fixed QoS band priority where WRR queues have

	 * lowest priorities with respect to SP ones.

	 * e.g: WRR0, WRR1, .., WRRm, SP0, SP1, .., SPn

	 */

	nwrr = p->bands - nstrict;

	qidx = nstrict && nwrr ? nstrict : 0;

	for (i = 1; i <= p->bands; i++) {

		if (p->priomap[i % AIROHA_NUM_QOS_QUEUES] != qidx)

			return -EINVAL;



		qidx = i == nwrr ? 0 : qidx + 1;

	}



	for (i = 0; i < nwrr; i++)

		w[i] = p->weights[nstrict + i];



	if (!nstrict)