1 /* SPDX-License-Identifier: GPL-2.0 2 * Marvell OcteonTx2 RVU Admin Function driver 3 * 4 * Copyright (C) 2018 Marvell International Ltd. 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License version 2 as 8 * published by the Free Software Foundation. 9 */ 10 11 #ifndef COMMON_H 12 #define COMMON_H 13 14 #include "rvu_struct.h" 15 16 #define OTX2_ALIGN 128 /* Align to cacheline */ 17 18 #define Q_SIZE_16 0ULL /* 16 entries */ 19 #define Q_SIZE_64 1ULL /* 64 entries */ 20 #define Q_SIZE_256 2ULL 21 #define Q_SIZE_1K 3ULL 22 #define Q_SIZE_4K 4ULL 23 #define Q_SIZE_16K 5ULL 24 #define Q_SIZE_64K 6ULL 25 #define Q_SIZE_256K 7ULL 26 #define Q_SIZE_1M 8ULL /* Million entries */ 27 #define Q_SIZE_MIN Q_SIZE_16 28 #define Q_SIZE_MAX Q_SIZE_1M 29 30 #define Q_COUNT(x) (16ULL << (2 * x)) 31 #define Q_SIZE(x, n) ((ilog2(x) - (n)) / 2) 32 33 /* Admin queue info */ 34 35 /* Since we intend to add only one instruction at a time, 36 * keep queue size to it's minimum. 37 */ 38 #define AQ_SIZE Q_SIZE_16 39 /* HW head & tail pointer mask */ 40 #define AQ_PTR_MASK 0xFFFFF 41 42 struct qmem { 43 void *base; 44 dma_addr_t iova; 45 int alloc_sz; 46 u8 entry_sz; 47 u8 align; 48 u32 qsize; 49 }; 50 51 static inline int qmem_alloc(struct device *dev, struct qmem **q, 52 int qsize, int entry_sz) 53 { 54 struct qmem *qmem; 55 int aligned_addr; 56 57 if (!qsize) 58 return -EINVAL; 59 60 *q = devm_kzalloc(dev, sizeof(*qmem), GFP_KERNEL); 61 if (!*q) 62 return -ENOMEM; 63 qmem = *q; 64 65 qmem->entry_sz = entry_sz; 66 qmem->alloc_sz = (qsize * entry_sz) + OTX2_ALIGN; 67 qmem->base = dma_zalloc_coherent(dev, qmem->alloc_sz, 68 &qmem->iova, GFP_KERNEL); 69 if (!qmem->base) 70 return -ENOMEM; 71 72 qmem->qsize = qsize; 73 74 aligned_addr = ALIGN((u64)qmem->iova, OTX2_ALIGN); 75 qmem->align = (aligned_addr - qmem->iova); 76 qmem->base += qmem->align; 77 qmem->iova += qmem->align; 78 return 0; 79 } 80 81 static inline void qmem_free(struct device *dev, struct qmem *qmem) 82 { 83 if (!qmem) 84 return; 85 86 if (qmem->base) 87 dma_free_coherent(dev, qmem->alloc_sz, 88 qmem->base - qmem->align, 89 qmem->iova - qmem->align); 90 devm_kfree(dev, qmem); 91 } 92 93 struct admin_queue { 94 struct qmem *inst; 95 struct qmem *res; 96 spinlock_t lock; /* Serialize inst enqueue from PFs */ 97 }; 98 99 /* NPA aura count */ 100 enum npa_aura_sz { 101 NPA_AURA_SZ_0, 102 NPA_AURA_SZ_128, 103 NPA_AURA_SZ_256, 104 NPA_AURA_SZ_512, 105 NPA_AURA_SZ_1K, 106 NPA_AURA_SZ_2K, 107 NPA_AURA_SZ_4K, 108 NPA_AURA_SZ_8K, 109 NPA_AURA_SZ_16K, 110 NPA_AURA_SZ_32K, 111 NPA_AURA_SZ_64K, 112 NPA_AURA_SZ_128K, 113 NPA_AURA_SZ_256K, 114 NPA_AURA_SZ_512K, 115 NPA_AURA_SZ_1M, 116 NPA_AURA_SZ_MAX, 117 }; 118 119 #define NPA_AURA_COUNT(x) (1ULL << ((x) + 6)) 120 121 /* NPA AQ result structure for init/read/write of aura HW contexts */ 122 struct npa_aq_aura_res { 123 struct npa_aq_res_s res; 124 struct npa_aura_s aura_ctx; 125 struct npa_aura_s ctx_mask; 126 }; 127 128 /* NPA AQ result structure for init/read/write of pool HW contexts */ 129 struct npa_aq_pool_res { 130 struct npa_aq_res_s res; 131 struct npa_pool_s pool_ctx; 132 struct npa_pool_s ctx_mask; 133 }; 134 135 /* NIX Transmit schedulers */ 136 enum nix_scheduler { 137 NIX_TXSCH_LVL_SMQ = 0x0, 138 NIX_TXSCH_LVL_MDQ = 0x0, 139 NIX_TXSCH_LVL_TL4 = 0x1, 140 NIX_TXSCH_LVL_TL3 = 0x2, 141 NIX_TXSCH_LVL_TL2 = 0x3, 142 NIX_TXSCH_LVL_TL1 = 0x4, 143 NIX_TXSCH_LVL_CNT = 0x5, 144 }; 145 146 /* NIX RX action operation*/ 147 #define NIX_RX_ACTIONOP_DROP (0x0ull) 148 #define NIX_RX_ACTIONOP_UCAST (0x1ull) 149 #define NIX_RX_ACTIONOP_UCAST_IPSEC (0x2ull) 150 #define NIX_RX_ACTIONOP_MCAST (0x3ull) 151 #define NIX_RX_ACTIONOP_RSS (0x4ull) 152 153 /* NIX TX action operation*/ 154 #define NIX_TX_ACTIONOP_DROP (0x0ull) 155 #define NIX_TX_ACTIONOP_UCAST_DEFAULT (0x1ull) 156 #define NIX_TX_ACTIONOP_UCAST_CHAN (0x2ull) 157 #define NIX_TX_ACTIONOP_MCAST (0x3ull) 158 #define NIX_TX_ACTIONOP_DROP_VIOL (0x5ull) 159 160 #define NPC_MCAM_KEY_X1 0 161 #define NPC_MCAM_KEY_X2 1 162 #define NPC_MCAM_KEY_X4 2 163 164 #define NIX_INTF_RX 0 165 #define NIX_INTF_TX 1 166 167 #define NIX_INTF_TYPE_CGX 0 168 #define NIX_INTF_TYPE_LBK 1 169 170 #define MAX_LMAC_PKIND 12 171 #define NIX_LINK_CGX_LMAC(a, b) (0 + 4 * (a) + (b)) 172 #define NIX_CHAN_CGX_LMAC_CHX(a, b, c) (0x800 + 0x100 * (a) + 0x10 * (b) + (c)) 173 174 /* NIX LSO format indices. 175 * As of now TSO is the only one using, so statically assigning indices. 176 */ 177 #define NIX_LSO_FORMAT_IDX_TSOV4 0 178 #define NIX_LSO_FORMAT_IDX_TSOV6 1 179 180 /* RSS info */ 181 #define MAX_RSS_GROUPS 8 182 /* Group 0 has to be used in default pkt forwarding MCAM entries 183 * reserved for NIXLFs. Groups 1-7 can be used for RSS for ntuple 184 * filters. 185 */ 186 #define DEFAULT_RSS_CONTEXT_GROUP 0 187 #define MAX_RSS_INDIR_TBL_SIZE 256 /* 1 << Max adder bits */ 188 189 /* NIX flow tag, key type flags */ 190 #define FLOW_KEY_TYPE_PORT BIT(0) 191 #define FLOW_KEY_TYPE_IPV4 BIT(1) 192 #define FLOW_KEY_TYPE_IPV6 BIT(2) 193 #define FLOW_KEY_TYPE_TCP BIT(3) 194 #define FLOW_KEY_TYPE_UDP BIT(4) 195 #define FLOW_KEY_TYPE_SCTP BIT(5) 196 197 /* NIX flow tag algorithm indices, max is 31 */ 198 enum { 199 FLOW_KEY_ALG_PORT, 200 FLOW_KEY_ALG_IP, 201 FLOW_KEY_ALG_TCP, 202 FLOW_KEY_ALG_UDP, 203 FLOW_KEY_ALG_SCTP, 204 FLOW_KEY_ALG_TCP_UDP, 205 FLOW_KEY_ALG_TCP_SCTP, 206 FLOW_KEY_ALG_UDP_SCTP, 207 FLOW_KEY_ALG_TCP_UDP_SCTP, 208 FLOW_KEY_ALG_MAX, 209 }; 210 211 #endif /* COMMON_H */ 212