47a9656f16
When multiple traffic flows reach Transmit level with the same priority, with Round robin scheduling traffic flow with the highest quantum value is picked. With this support, the user can add multiple classes with the same priority and different quantum. This patch does necessary changes to support the same. Signed-off-by: Naveen Mamindlapalli <naveenm@marvell.com> Signed-off-by: Hariprasad Kelam <hkelam@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
79 lines
2.0 KiB
C
79 lines
2.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/* Marvell RVU Ethernet driver
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*
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* Copyright (C) 2023 Marvell.
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*
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*/
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#ifndef OTX2_QOS_H
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#define OTX2_QOS_H
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#include <linux/types.h>
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#include <linux/netdevice.h>
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#include <linux/rhashtable.h>
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#define OTX2_QOS_MAX_LVL 4
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#define OTX2_QOS_MAX_PRIO 7
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#define OTX2_QOS_MAX_LEAF_NODES 16
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enum qos_smq_operations {
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QOS_CFG_SQ,
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QOS_SMQ_FLUSH,
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};
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u64 otx2_get_txschq_rate_regval(struct otx2_nic *nic, u64 maxrate, u32 burst);
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int otx2_setup_tc_htb(struct net_device *ndev, struct tc_htb_qopt_offload *htb);
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int otx2_qos_get_qid(struct otx2_nic *pfvf);
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void otx2_qos_free_qid(struct otx2_nic *pfvf, int qidx);
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int otx2_qos_enable_sq(struct otx2_nic *pfvf, int qidx);
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void otx2_qos_disable_sq(struct otx2_nic *pfvf, int qidx);
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struct otx2_qos_cfg {
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u16 schq[NIX_TXSCH_LVL_CNT];
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u16 schq_contig[NIX_TXSCH_LVL_CNT];
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int static_node_pos[NIX_TXSCH_LVL_CNT];
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int dwrr_node_pos[NIX_TXSCH_LVL_CNT];
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u16 schq_contig_list[NIX_TXSCH_LVL_CNT][MAX_TXSCHQ_PER_FUNC];
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u16 schq_list[NIX_TXSCH_LVL_CNT][MAX_TXSCHQ_PER_FUNC];
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bool schq_index_used[NIX_TXSCH_LVL_CNT][MAX_TXSCHQ_PER_FUNC];
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};
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struct otx2_qos {
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DECLARE_HASHTABLE(qos_hlist, order_base_2(OTX2_QOS_MAX_LEAF_NODES));
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struct mutex qos_lock; /* child list lock */
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u16 qid_to_sqmap[OTX2_QOS_MAX_LEAF_NODES];
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struct list_head qos_tree;
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DECLARE_BITMAP(qos_sq_bmap, OTX2_QOS_MAX_LEAF_NODES);
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u16 maj_id;
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u16 defcls;
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u8 link_cfg_lvl; /* LINKX_CFG CSRs mapped to TL3 or TL2's index ? */
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};
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struct otx2_qos_node {
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struct list_head list; /* list management */
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struct list_head child_list;
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struct list_head child_schq_list;
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struct hlist_node hlist;
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DECLARE_BITMAP(prio_bmap, OTX2_QOS_MAX_PRIO + 1);
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struct otx2_qos_node *parent; /* parent qos node */
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u64 rate; /* htb params */
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u64 ceil;
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u32 classid;
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u32 prio;
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u32 quantum;
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/* hw txschq */
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u16 schq;
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u16 qid;
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u16 prio_anchor;
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u16 max_static_prio;
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u16 child_dwrr_cnt;
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u16 child_static_cnt;
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u16 child_dwrr_prio;
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u16 txschq_idx; /* txschq allocation index */
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u8 level;
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bool is_static;
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};
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#endif
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