1/* SPDX-License-Identifier: GPL-2.0 */
2/* Marvell RVU Admin Function driver
3 *
4 * Copyright (C) 2022 Marvell.
5 *
6 */
7
8#ifndef __RVU_NPC_HASH_H
9#define __RVU_NPC_HASH_H
10
11#define RVU_NPC_HASH_SECRET_KEY0 0xa9d5af4c9fbc76b1
12#define RVU_NPC_HASH_SECRET_KEY1 0xa9d5af4c9fbc87b4
13#define RVU_NPC_HASH_SECRET_KEY2 0x5954c9e7
14
15#define NPC_MAX_HASH 2
16#define NPC_MAX_HASH_MASK 2
17
18#define KEX_LD_CFG_USE_HASH(use_hash, bytesm1, hdr_ofs, ena, flags_ena, key_ofs) \
19			    ((use_hash) << 20 | ((bytesm1) << 16) | ((hdr_ofs) << 8) | \
20			     ((ena) << 7) | ((flags_ena) << 6) | ((key_ofs) & 0x3F))
21#define KEX_LD_CFG_HASH(hdr_ofs, bytesm1, lt_en, lid_en, lid, ltype_match, ltype_mask)	\
22			(((hdr_ofs) << 32) | ((bytesm1) << 16) | \
23			 ((lt_en) << 12) | ((lid_en) << 11) | ((lid) << 8) | \
24			 ((ltype_match) << 4) | ((ltype_mask) & 0xF))
25
26#define SET_KEX_LD_HASH(intf, ld, cfg) \
27	rvu_write64(rvu, blkaddr,	\
28		    NPC_AF_INTFX_HASHX_CFG(intf, ld), cfg)
29
30#define SET_KEX_LD_HASH_MASK(intf, ld, mask_idx, cfg) \
31	rvu_write64(rvu, blkaddr,	\
32		    NPC_AF_INTFX_HASHX_MASKX(intf, ld, mask_idx), cfg)
33
34#define GET_KEX_LD_HASH_CTRL(intf, ld)	\
35	rvu_read64(rvu, blkaddr, NPC_AF_INTFX_HASHX_RESULT_CTRL(intf, ld))
36
37#define GET_KEX_LD_HASH_MASK(intf, ld, mask_idx)	\
38	rvu_read64(rvu, blkaddr, NPC_AF_INTFX_HASHX_MASKX(intf, ld, mask_idx))
39
40#define SET_KEX_LD_HASH_CTRL(intf, ld, cfg) \
41	rvu_write64(rvu, blkaddr,	\
42		    NPC_AF_INTFX_HASHX_RESULT_CTRL(intf, ld), cfg)
43
44struct npc_mcam_kex_hash {
45	/* NPC_AF_INTF(0..1)_LID(0..7)_LT(0..15)_LD(0..1)_CFG */
46	bool lid_lt_ld_hash_en[NPC_MAX_INTF][NPC_MAX_LID][NPC_MAX_LT][NPC_MAX_LD];
47	/* NPC_AF_INTF(0..1)_HASH(0..1)_CFG */
48	u64 hash[NPC_MAX_INTF][NPC_MAX_HASH];
49	/* NPC_AF_INTF(0..1)_HASH(0..1)_MASK(0..1) */
50	u64 hash_mask[NPC_MAX_INTF][NPC_MAX_HASH][NPC_MAX_HASH_MASK];
51	/* NPC_AF_INTF(0..1)_HASH(0..1)_RESULT_CTRL */
52	u64 hash_ctrl[NPC_MAX_INTF][NPC_MAX_HASH];
53} __packed;
54
55void npc_update_field_hash(struct rvu *rvu, u8 intf,
56			   struct mcam_entry *entry,
57			   int blkaddr,
58			   u64 features,
59			   struct flow_msg *pkt,
60			   struct flow_msg *mask,
61			   struct flow_msg *opkt,
62			   struct flow_msg *omask);
63void npc_config_secret_key(struct rvu *rvu, int blkaddr);
64void npc_program_mkex_hash(struct rvu *rvu, int blkaddr);
65u32 npc_field_hash_calc(u64 *ldata, struct npc_get_field_hash_info_rsp rsp,
66			u8 intf, u8 hash_idx);
67
68static struct npc_mcam_kex_hash npc_mkex_hash_default __maybe_unused = {
69	.lid_lt_ld_hash_en = {
70	[NIX_INTF_RX] = {
71		[NPC_LID_LC] = {
72			[NPC_LT_LC_IP6] = {
73				false,
74				false,
75			},
76		},
77	},
78
79	[NIX_INTF_TX] = {
80		[NPC_LID_LC] = {
81			[NPC_LT_LC_IP6] = {
82				false,
83				false,
84			},
85		},
86	},
87	},
88
89	.hash = {
90	[NIX_INTF_RX] = {
91		KEX_LD_CFG_HASH(0x8ULL, 0xf, 0x1, 0x1, NPC_LID_LC, NPC_LT_LC_IP6, 0xf),
92		KEX_LD_CFG_HASH(0x18ULL, 0xf, 0x1, 0x1, NPC_LID_LC, NPC_LT_LC_IP6, 0xf),
93	},
94
95	[NIX_INTF_TX] = {
96		KEX_LD_CFG_HASH(0x8ULL, 0xf, 0x1, 0x1, NPC_LID_LC, NPC_LT_LC_IP6, 0xf),
97		KEX_LD_CFG_HASH(0x18ULL, 0xf, 0x1, 0x1, NPC_LID_LC, NPC_LT_LC_IP6, 0xf),
98	},
99	},
100
101	.hash_mask = {
102	[NIX_INTF_RX] = {
103		[0] = {
104			GENMASK_ULL(63, 0),
105			GENMASK_ULL(63, 0),
106		},
107		[1] = {
108			GENMASK_ULL(63, 0),
109			GENMASK_ULL(63, 0),
110		},
111	},
112
113	[NIX_INTF_TX] = {
114		[0] = {
115			GENMASK_ULL(63, 0),
116			GENMASK_ULL(63, 0),
117		},
118		[1] = {
119			GENMASK_ULL(63, 0),
120			GENMASK_ULL(63, 0),
121		},
122	},
123	},
124
125	.hash_ctrl = {
126	[NIX_INTF_RX] = {
127		[0] = GENMASK_ULL(63, 32), /* MSB 32 bit is mask and LSB 32 bit is offset. */
128		[1] = GENMASK_ULL(63, 32), /* MSB 32 bit is mask and LSB 32 bit is offset. */
129	},
130
131	[NIX_INTF_TX] = {
132		[0] = GENMASK_ULL(63, 32), /* MSB 32 bit is mask and LSB 32 bit is offset. */
133		[1] = GENMASK_ULL(63, 32), /* MSB 32 bit is mask and LSB 32 bit is offset. */
134	},
135	},
136};
137
138/* If exact match table support is enabled, enable drop rules */
139#define NPC_MCAM_DROP_RULE_MAX 30
140#define NPC_MCAM_SDP_DROP_RULE_IDX 0
141
142#define RVU_PFFUNC(pf, func)	\
143	((((pf) & RVU_PFVF_PF_MASK) << RVU_PFVF_PF_SHIFT) | \
144	(((func) & RVU_PFVF_FUNC_MASK) << RVU_PFVF_FUNC_SHIFT))
145
146enum npc_exact_opc_type {
147	NPC_EXACT_OPC_MEM,
148	NPC_EXACT_OPC_CAM,
149};
150
151struct npc_exact_table_entry {
152	struct list_head list;
153	struct list_head glist;
154	u32 seq_id;	/* Sequence number of entry */
155	u32 index;	/* Mem table or cam table index */
156	u32 mcam_idx;
157		/* Mcam index. This is valid only if "cmd" field is false */
158	enum npc_exact_opc_type opc_type;
159	u16 chan;
160	u16 pcifunc;
161	u8 ways;
162	u8 mac[ETH_ALEN];
163	u8 ctype;
164	u8 cgx_id;
165	u8 lmac_id;
166	bool cmd;	/* Is added by ethtool command ? */
167};
168
169struct npc_exact_table {
170	struct mutex lock;	/* entries update lock */
171	unsigned long *id_bmap;
172	int num_drop_rules;
173	u32 tot_ids;
174	u16 cnt_cmd_rules[NPC_MCAM_DROP_RULE_MAX];
175	u16 counter_idx[NPC_MCAM_DROP_RULE_MAX];
176	bool promisc_mode[NPC_MCAM_DROP_RULE_MAX];
177	struct {
178		int ways;
179		int depth;
180		unsigned long *bmap;
181		u64 mask;	// Masks before hash calculation.
182		u16 hash_mask;	// 11 bits for hash mask
183		u16 hash_offset; // 11 bits offset
184	} mem_table;
185
186	struct {
187		int depth;
188		unsigned long *bmap;
189	} cam_table;
190
191	struct {
192		bool valid;
193		u16 chan_val;
194		u16 chan_mask;
195		u16 pcifunc;
196		u8 drop_rule_idx;
197	} drop_rule_map[NPC_MCAM_DROP_RULE_MAX];
198
199#define NPC_EXACT_TBL_MAX_WAYS 4
200
201	struct list_head lhead_mem_tbl_entry[NPC_EXACT_TBL_MAX_WAYS];
202	int mem_tbl_entry_cnt;
203
204	struct list_head lhead_cam_tbl_entry;
205	int cam_tbl_entry_cnt;
206
207	struct list_head lhead_gbl;
208};
209
210bool rvu_npc_exact_has_match_table(struct rvu *rvu);
211u32 rvu_npc_exact_get_max_entries(struct rvu *rvu);
212int rvu_npc_exact_init(struct rvu *rvu);
213int rvu_npc_exact_mac_addr_reset(struct rvu *rvu, struct cgx_mac_addr_reset_req *req,
214				 struct msg_rsp *rsp);
215
216int rvu_npc_exact_mac_addr_update(struct rvu *rvu,
217				  struct cgx_mac_addr_update_req *req,
218				  struct cgx_mac_addr_update_rsp *rsp);
219
220int rvu_npc_exact_mac_addr_add(struct rvu *rvu,
221			       struct cgx_mac_addr_add_req *req,
222			       struct cgx_mac_addr_add_rsp *rsp);
223
224int rvu_npc_exact_mac_addr_del(struct rvu *rvu,
225			       struct cgx_mac_addr_del_req *req,
226			       struct msg_rsp *rsp);
227
228int rvu_npc_exact_mac_addr_set(struct rvu *rvu, struct cgx_mac_addr_set_or_get *req,
229			       struct cgx_mac_addr_set_or_get *rsp);
230
231void rvu_npc_exact_reset(struct rvu *rvu, u16 pcifunc);
232
233bool rvu_npc_exact_can_disable_feature(struct rvu *rvu);
234void rvu_npc_exact_disable_feature(struct rvu *rvu);
235void rvu_npc_exact_reset(struct rvu *rvu, u16 pcifunc);
236u16 rvu_npc_exact_drop_rule_to_pcifunc(struct rvu *rvu, u32 drop_rule_idx);
237int rvu_npc_exact_promisc_disable(struct rvu *rvu, u16 pcifunc);
238int rvu_npc_exact_promisc_enable(struct rvu *rvu, u16 pcifunc);
239#endif /* RVU_NPC_HASH_H */
240