1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* Marvell RVU Ethernet driver 3 * 4 * Copyright (C) 2023 Marvell. 5 * 6 */ 7 #ifndef OTX2_QOS_H 8 #define OTX2_QOS_H 9 10 #include <linux/types.h> 11 #include <linux/netdevice.h> 12 #include <linux/rhashtable.h> 13 14 #define OTX2_QOS_MAX_LVL 4 15 #define OTX2_QOS_MAX_PRIO 7 16 #define OTX2_QOS_MAX_LEAF_NODES 16 17 18 enum qos_smq_operations { 19 QOS_CFG_SQ, 20 QOS_SMQ_FLUSH, 21 }; 22 23 u64 otx2_get_txschq_rate_regval(struct otx2_nic *nic, u64 maxrate, u32 burst); 24 25 int otx2_setup_tc_htb(struct net_device *ndev, struct tc_htb_qopt_offload *htb); 26 int otx2_qos_get_qid(struct otx2_nic *pfvf); 27 void otx2_qos_free_qid(struct otx2_nic *pfvf, int qidx); 28 int otx2_qos_enable_sq(struct otx2_nic *pfvf, int qidx); 29 void otx2_qos_disable_sq(struct otx2_nic *pfvf, int qidx); 30 31 struct otx2_qos_cfg { 32 u16 schq[NIX_TXSCH_LVL_CNT]; 33 u16 schq_contig[NIX_TXSCH_LVL_CNT]; 34 int static_node_pos[NIX_TXSCH_LVL_CNT]; 35 int dwrr_node_pos[NIX_TXSCH_LVL_CNT]; 36 u16 schq_contig_list[NIX_TXSCH_LVL_CNT][MAX_TXSCHQ_PER_FUNC]; 37 u16 schq_list[NIX_TXSCH_LVL_CNT][MAX_TXSCHQ_PER_FUNC]; 38 bool schq_index_used[NIX_TXSCH_LVL_CNT][MAX_TXSCHQ_PER_FUNC]; 39 }; 40 41 struct otx2_qos { 42 DECLARE_HASHTABLE(qos_hlist, order_base_2(OTX2_QOS_MAX_LEAF_NODES)); 43 struct mutex qos_lock; /* child list lock */ 44 u16 qid_to_sqmap[OTX2_QOS_MAX_LEAF_NODES]; 45 struct list_head qos_tree; 46 DECLARE_BITMAP(qos_sq_bmap, OTX2_QOS_MAX_LEAF_NODES); 47 u16 maj_id; 48 u16 defcls; 49 u8 link_cfg_lvl; /* LINKX_CFG CSRs mapped to TL3 or TL2's index ? */ 50 }; 51 52 struct otx2_qos_node { 53 struct list_head list; /* list management */ 54 struct list_head child_list; 55 struct list_head child_schq_list; 56 struct hlist_node hlist; 57 DECLARE_BITMAP(prio_bmap, OTX2_QOS_MAX_PRIO + 1); 58 struct otx2_qos_node *parent; /* parent qos node */ 59 u64 rate; /* htb params */ 60 u64 ceil; 61 u32 classid; 62 u32 prio; 63 u32 quantum; 64 /* hw txschq */ 65 u16 schq; 66 u16 qid; 67 u16 prio_anchor; 68 u16 max_static_prio; 69 u16 child_dwrr_cnt; 70 u16 child_static_cnt; 71 u16 child_dwrr_prio; 72 u16 txschq_idx; /* txschq allocation index */ 73 u8 level; 74 bool is_static; 75 }; 76 77 78 #endif 79