core/esw/qos.c

45 static int esw_qos_group_config(struct mlx5_eswitch *esw, struct mlx5_esw_rate_group *group,
53 				  group->tsar_ix,
56 		NL_SET_ERR_MSG_MOD(extack, "E-Switch modify group TSAR element failed");
58 	trace_mlx5_esw_group_qos_config(dev, group, group->tsar_ix, bw_share, max_rate);
91 					      struct mlx5_esw_rate_group *group,
100 		struct mlx5_esw_rate_group *group;
102 		list_for_each_entry(group, &esw->qos.groups, list) {
103 			if (group->min_rate < max_guarantee)
105 			max_guarantee = group->min_rate;
110 			    evport->qos.group != group || evport->qos.min_rate < max_guarantee)
119 	/* If vports min rate divider is 0 but their group has bw_share configured, then
122 	if (!group_level && !max_guarantee && group && group->bw_share)
136 					     struct mlx5_esw_rate_group *group,
140 	u32 divider = esw_qos_calculate_min_rate_divider(esw, group, false);
147 		if (!evport->enabled || !evport->qos.enabled || evport->qos.group != group)
168 	struct mlx5_esw_rate_group *group;
172 	list_for_each_entry(group, &esw->qos.groups, list) {
173 		bw_share = esw_qos_calc_bw_share(group->min_rate, divider, fw_max_bw_share);
175 		if (bw_share == group->bw_share)
178 		err = esw_qos_group_config(esw, group, group->max_rate, bw_share, extack);
182 		group->bw_share = bw_share;
184 		/* All the group's vports need to be set with default bw_share
187 		err = esw_qos_normalize_vports_min_rate(esw, group, extack);
214 	err = esw_qos_normalize_vports_min_rate(esw, evport->qos.group, extack);
236 	/* If parent group has rate limit need to set to group
239 	if (evport->qos.group && !max_rate)
240 		act_max_rate = evport->qos.group->max_rate;
250 static int esw_qos_set_group_min_rate(struct mlx5_eswitch *esw, struct mlx5_esw_rate_group *group,
261 	if (min_rate == group->min_rate)
264 	previous_min_rate = group->min_rate;
265 	group->min_rate = min_rate;
266 	divider = esw_qos_calculate_min_rate_divider(esw, group, true);
269 		group->min_rate = previous_min_rate;
270 		NL_SET_ERR_MSG_MOD(extack, "E-Switch group min rate setting failed");
273 		divider = esw_qos_calculate_min_rate_divider(esw, group, true);
282 				      struct mlx5_esw_rate_group *group,
289 	if (group->max_rate == max_rate)
292 	err = esw_qos_group_config(esw, group, max_rate, group->bw_share, extack);
296 	group->max_rate = max_rate;
298 	/* Any unlimited vports in the group should be set
299 	 * with the value of the group.
303 		    vport->qos.group != group || vport->qos.max_rate)
320 	struct mlx5_esw_rate_group *group = vport->qos.group;
326 	parent_tsar_ix = group ? group->tsar_ix : esw->qos.root_tsar_ix;
365 	vport->qos.group = new_group;
368 	/* If vport is unlimited, we set the group's value.
369 	 * Therefore, if the group is limited it will apply to
374 		NL_SET_ERR_MSG_MOD(extack, "E-Switch vport group set failed.");
381 	vport->qos.group = curr_group;
384 		esw_warn(esw->dev, "E-Switch vport group restore failed (vport=%d)\n",
392 				      struct mlx5_esw_rate_group *group,
401 	curr_group = vport->qos.group;
402 	new_group = group ?: esw->qos.group0;
423 	struct mlx5_esw_rate_group *group;
427 	group = kzalloc(sizeof(*group), GFP_KERNEL);
428 	if (!group)
436 						 &group->tsar_ix);
438 		NL_SET_ERR_MSG_MOD(extack, "E-Switch create TSAR for group failed");
442 	list_add_tail(&group->list, &esw->qos.groups);
444 	divider = esw_qos_calculate_min_rate_divider(esw, group, true);
452 	trace_mlx5_esw_group_qos_create(esw->dev, group, group->tsar_ix);
454 	return group;
457 	list_del(&group->list);
460 						group->tsar_ix))
461 		NL_SET_ERR_MSG_MOD(extack, "E-Switch destroy TSAR for group failed");
463 	kfree(group);
473 	struct mlx5_esw_rate_group *group;
483 	group = __esw_qos_create_rate_group(esw, extack);
484 	if (IS_ERR(group))
487 	return group;
491 					struct mlx5_esw_rate_group *group,
497 	list_del(&group->list);
506 						  group->tsar_ix);
510 	trace_mlx5_esw_group_qos_destroy(esw->dev, group, group->tsar_ix);
512 	kfree(group);
518 				      struct mlx5_esw_rate_group *group,
523 	err = __esw_qos_destroy_rate_group(esw, group, extack);
580 			esw_warn(dev, "E-Switch create rate group 0 failed (%ld)\n",
648 	vport->qos.group = esw->qos.group0;
672 	WARN(vport->qos.group && vport->qos.group != esw->qos.group0,
673 	     "Disabling QoS on port before detaching it from group");
903 	struct mlx5_esw_rate_group *group = priv;
911 	err = esw_qos_set_group_min_rate(esw, group, tx_share, extack);
921 	struct mlx5_esw_rate_group *group = priv;
929 	err = esw_qos_set_group_max_rate(esw, group, tx_max, extack);
937 	struct mlx5_esw_rate_group *group;
953 	group = esw_qos_create_rate_group(esw, extack);
954 	if (IS_ERR(group)) {
955 		err = PTR_ERR(group);
959 	*priv = group;
968 	struct mlx5_esw_rate_group *group = priv;
977 	err = esw_qos_destroy_rate_group(esw, group, extack);
984 				    struct mlx5_esw_rate_group *group,
990 	if (!vport->qos.enabled && !group)
995 		err = esw_qos_vport_update_group(esw, vport, group, extack);
1006 	struct mlx5_esw_rate_group *group;
1013 	group = parent_priv;
1014 	return mlx5_esw_qos_vport_update_group(vport->dev->priv.eswitch, vport, group, extack);