1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* Copyright (c) 2018, Intel Corporation. */ 3 4 #ifndef _ICE_H_ 5 #define _ICE_H_ 6 7 #include <linux/types.h> 8 #include <linux/errno.h> 9 #include <linux/kernel.h> 10 #include <linux/module.h> 11 #include <linux/netdevice.h> 12 #include <linux/compiler.h> 13 #include <linux/etherdevice.h> 14 #include <linux/skbuff.h> 15 #include <linux/cpumask.h> 16 #include <linux/rtnetlink.h> 17 #include <linux/if_vlan.h> 18 #include <linux/dma-mapping.h> 19 #include <linux/pci.h> 20 #include <linux/workqueue.h> 21 #include <linux/aer.h> 22 #include <linux/interrupt.h> 23 #include <linux/ethtool.h> 24 #include <linux/timer.h> 25 #include <linux/delay.h> 26 #include <linux/bitmap.h> 27 #include <linux/log2.h> 28 #include <linux/ip.h> 29 #include <linux/ipv6.h> 30 #include <linux/if_bridge.h> 31 #include <net/ipv6.h> 32 #include "ice_devids.h" 33 #include "ice_type.h" 34 #include "ice_txrx.h" 35 #include "ice_switch.h" 36 #include "ice_common.h" 37 #include "ice_sched.h" 38 39 extern const char ice_drv_ver[]; 40 #define ICE_BAR0 0 41 #define ICE_DFLT_NUM_DESC 128 42 #define ICE_MIN_NUM_DESC 8 43 #define ICE_MAX_NUM_DESC 8160 44 #define ICE_REQ_DESC_MULTIPLE 32 45 #define ICE_DFLT_TRAFFIC_CLASS BIT(0) 46 #define ICE_INT_NAME_STR_LEN (IFNAMSIZ + 16) 47 #define ICE_ETHTOOL_FWVER_LEN 32 48 #define ICE_AQ_LEN 64 49 #define ICE_MIN_MSIX 2 50 #define ICE_NO_VSI 0xffff 51 #define ICE_MAX_VSI_ALLOC 130 52 #define ICE_MAX_TXQS 2048 53 #define ICE_MAX_RXQS 2048 54 #define ICE_VSI_MAP_CONTIG 0 55 #define ICE_VSI_MAP_SCATTER 1 56 #define ICE_MAX_SCATTER_TXQS 16 57 #define ICE_MAX_SCATTER_RXQS 16 58 #define ICE_Q_WAIT_RETRY_LIMIT 10 59 #define ICE_Q_WAIT_MAX_RETRY (5 * ICE_Q_WAIT_RETRY_LIMIT) 60 #define ICE_MAX_LG_RSS_QS 256 61 #define ICE_MAX_SMALL_RSS_QS 8 62 #define ICE_RES_VALID_BIT 0x8000 63 #define ICE_RES_MISC_VEC_ID (ICE_RES_VALID_BIT - 1) 64 #define ICE_INVAL_Q_INDEX 0xffff 65 66 #define ICE_VSIQF_HKEY_ARRAY_SIZE ((VSIQF_HKEY_MAX_INDEX + 1) * 4) 67 68 #define ICE_DFLT_NETIF_M (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK) 69 70 #define ICE_MAX_MTU (ICE_AQ_SET_MAC_FRAME_SIZE_MAX - \ 71 ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN) 72 73 #define ICE_UP_TABLE_TRANSLATE(val, i) \ 74 (((val) << ICE_AQ_VSI_UP_TABLE_UP##i##_S) & \ 75 ICE_AQ_VSI_UP_TABLE_UP##i##_M) 76 77 #define ICE_TX_DESC(R, i) (&(((struct ice_tx_desc *)((R)->desc))[i])) 78 #define ICE_RX_DESC(R, i) (&(((union ice_32b_rx_flex_desc *)((R)->desc))[i])) 79 #define ICE_TX_CTX_DESC(R, i) (&(((struct ice_tx_ctx_desc *)((R)->desc))[i])) 80 81 /* Macro for each VSI in a PF */ 82 #define ice_for_each_vsi(pf, i) \ 83 for ((i) = 0; (i) < (pf)->num_alloc_vsi; (i)++) 84 85 /* Macros for each tx/rx ring in a VSI */ 86 #define ice_for_each_txq(vsi, i) \ 87 for ((i) = 0; (i) < (vsi)->num_txq; (i)++) 88 89 #define ice_for_each_rxq(vsi, i) \ 90 for ((i) = 0; (i) < (vsi)->num_rxq; (i)++) 91 92 struct ice_tc_info { 93 u16 qoffset; 94 u16 qcount; 95 }; 96 97 struct ice_tc_cfg { 98 u8 numtc; /* Total number of enabled TCs */ 99 u8 ena_tc; /* TX map */ 100 struct ice_tc_info tc_info[ICE_MAX_TRAFFIC_CLASS]; 101 }; 102 103 struct ice_res_tracker { 104 u16 num_entries; 105 u16 search_hint; 106 u16 list[1]; 107 }; 108 109 struct ice_sw { 110 struct ice_pf *pf; 111 u16 sw_id; /* switch ID for this switch */ 112 u16 bridge_mode; /* VEB/VEPA/Port Virtualizer */ 113 }; 114 115 enum ice_state { 116 __ICE_DOWN, 117 __ICE_NEEDS_RESTART, 118 __ICE_RESET_RECOVERY_PENDING, /* set by driver when reset starts */ 119 __ICE_PFR_REQ, /* set by driver and peers */ 120 __ICE_CORER_REQ, /* set by driver and peers */ 121 __ICE_GLOBR_REQ, /* set by driver and peers */ 122 __ICE_CORER_RECV, /* set by OICR handler */ 123 __ICE_GLOBR_RECV, /* set by OICR handler */ 124 __ICE_EMPR_RECV, /* set by OICR handler */ 125 __ICE_SUSPENDED, /* set on module remove path */ 126 __ICE_RESET_FAILED, /* set by reset/rebuild */ 127 __ICE_ADMINQ_EVENT_PENDING, 128 __ICE_FLTR_OVERFLOW_PROMISC, 129 __ICE_CFG_BUSY, 130 __ICE_SERVICE_SCHED, 131 __ICE_STATE_NBITS /* must be last */ 132 }; 133 134 enum ice_vsi_flags { 135 ICE_VSI_FLAG_UMAC_FLTR_CHANGED, 136 ICE_VSI_FLAG_MMAC_FLTR_CHANGED, 137 ICE_VSI_FLAG_VLAN_FLTR_CHANGED, 138 ICE_VSI_FLAG_PROMISC_CHANGED, 139 ICE_VSI_FLAG_NBITS /* must be last */ 140 }; 141 142 /* struct that defines a VSI, associated with a dev */ 143 struct ice_vsi { 144 struct net_device *netdev; 145 struct ice_sw *vsw; /* switch this VSI is on */ 146 struct ice_pf *back; /* back pointer to PF */ 147 struct ice_port_info *port_info; /* back pointer to port_info */ 148 struct ice_ring **rx_rings; /* rx ring array */ 149 struct ice_ring **tx_rings; /* tx ring array */ 150 struct ice_q_vector **q_vectors; /* q_vector array */ 151 152 irqreturn_t (*irq_handler)(int irq, void *data); 153 154 u64 tx_linearize; 155 DECLARE_BITMAP(state, __ICE_STATE_NBITS); 156 DECLARE_BITMAP(flags, ICE_VSI_FLAG_NBITS); 157 unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)]; 158 unsigned int current_netdev_flags; 159 u32 tx_restart; 160 u32 tx_busy; 161 u32 rx_buf_failed; 162 u32 rx_page_failed; 163 int num_q_vectors; 164 int base_vector; 165 enum ice_vsi_type type; 166 u16 vsi_num; /* HW (absolute) index of this VSI */ 167 u16 idx; /* software index in pf->vsi[] */ 168 169 /* Interrupt thresholds */ 170 u16 work_lmt; 171 172 /* RSS config */ 173 u16 rss_table_size; /* HW RSS table size */ 174 u16 rss_size; /* Allocated RSS queues */ 175 u8 *rss_hkey_user; /* User configured hash keys */ 176 u8 *rss_lut_user; /* User configured lookup table entries */ 177 u8 rss_lut_type; /* used to configure Get/Set RSS LUT AQ call */ 178 179 u16 max_frame; 180 u16 rx_buf_len; 181 182 struct ice_aqc_vsi_props info; /* VSI properties */ 183 184 /* VSI stats */ 185 struct rtnl_link_stats64 net_stats; 186 struct ice_eth_stats eth_stats; 187 struct ice_eth_stats eth_stats_prev; 188 189 struct list_head tmp_sync_list; /* MAC filters to be synced */ 190 struct list_head tmp_unsync_list; /* MAC filters to be unsynced */ 191 192 bool irqs_ready; 193 bool current_isup; /* Sync 'link up' logging */ 194 bool stat_offsets_loaded; 195 196 /* queue information */ 197 u8 tx_mapping_mode; /* ICE_MAP_MODE_[CONTIG|SCATTER] */ 198 u8 rx_mapping_mode; /* ICE_MAP_MODE_[CONTIG|SCATTER] */ 199 u16 txq_map[ICE_MAX_TXQS]; /* index in pf->avail_txqs */ 200 u16 rxq_map[ICE_MAX_RXQS]; /* index in pf->avail_rxqs */ 201 u16 alloc_txq; /* Allocated Tx queues */ 202 u16 num_txq; /* Used Tx queues */ 203 u16 alloc_rxq; /* Allocated Rx queues */ 204 u16 num_rxq; /* Used Rx queues */ 205 u16 num_desc; 206 struct ice_tc_cfg tc_cfg; 207 } ____cacheline_internodealigned_in_smp; 208 209 /* struct that defines an interrupt vector */ 210 struct ice_q_vector { 211 struct ice_vsi *vsi; 212 cpumask_t affinity_mask; 213 struct napi_struct napi; 214 struct ice_ring_container rx; 215 struct ice_ring_container tx; 216 struct irq_affinity_notify affinity_notify; 217 u16 v_idx; /* index in the vsi->q_vector array. */ 218 u8 num_ring_tx; /* total number of tx rings in vector */ 219 u8 num_ring_rx; /* total number of rx rings in vector */ 220 char name[ICE_INT_NAME_STR_LEN]; 221 } ____cacheline_internodealigned_in_smp; 222 223 enum ice_pf_flags { 224 ICE_FLAG_MSIX_ENA, 225 ICE_FLAG_FLTR_SYNC, 226 ICE_FLAG_RSS_ENA, 227 ICE_PF_FLAGS_NBITS /* must be last */ 228 }; 229 230 struct ice_pf { 231 struct pci_dev *pdev; 232 struct msix_entry *msix_entries; 233 struct ice_res_tracker *irq_tracker; 234 struct ice_vsi **vsi; /* VSIs created by the driver */ 235 struct ice_sw *first_sw; /* first switch created by firmware */ 236 DECLARE_BITMAP(state, __ICE_STATE_NBITS); 237 DECLARE_BITMAP(avail_txqs, ICE_MAX_TXQS); 238 DECLARE_BITMAP(avail_rxqs, ICE_MAX_RXQS); 239 DECLARE_BITMAP(flags, ICE_PF_FLAGS_NBITS); 240 unsigned long serv_tmr_period; 241 unsigned long serv_tmr_prev; 242 struct timer_list serv_tmr; 243 struct work_struct serv_task; 244 struct mutex avail_q_mutex; /* protects access to avail_[rx|tx]qs */ 245 struct mutex sw_mutex; /* lock for protecting VSI alloc flow */ 246 u32 msg_enable; 247 u32 hw_csum_rx_error; 248 u32 oicr_idx; /* Other interrupt cause vector index */ 249 u32 num_lan_msix; /* Total MSIX vectors for base driver */ 250 u32 num_avail_msix; /* remaining MSIX vectors left unclaimed */ 251 u16 num_lan_tx; /* num lan tx queues setup */ 252 u16 num_lan_rx; /* num lan rx queues setup */ 253 u16 q_left_tx; /* remaining num tx queues left unclaimed */ 254 u16 q_left_rx; /* remaining num rx queues left unclaimed */ 255 u16 next_vsi; /* Next free slot in pf->vsi[] - 0-based! */ 256 u16 num_alloc_vsi; 257 u16 corer_count; /* Core reset count */ 258 u16 globr_count; /* Global reset count */ 259 u16 empr_count; /* EMP reset count */ 260 u16 pfr_count; /* PF reset count */ 261 262 struct ice_hw_port_stats stats; 263 struct ice_hw_port_stats stats_prev; 264 struct ice_hw hw; 265 bool stat_prev_loaded; /* has previous stats been loaded */ 266 char int_name[ICE_INT_NAME_STR_LEN]; 267 }; 268 269 struct ice_netdev_priv { 270 struct ice_vsi *vsi; 271 }; 272 273 /** 274 * ice_irq_dynamic_ena - Enable default interrupt generation settings 275 * @hw: pointer to hw struct 276 * @vsi: pointer to vsi struct, can be NULL 277 * @q_vector: pointer to q_vector, can be NULL 278 */ 279 static inline void ice_irq_dynamic_ena(struct ice_hw *hw, struct ice_vsi *vsi, 280 struct ice_q_vector *q_vector) 281 { 282 u32 vector = (vsi && q_vector) ? vsi->base_vector + q_vector->v_idx : 283 ((struct ice_pf *)hw->back)->oicr_idx; 284 int itr = ICE_ITR_NONE; 285 u32 val; 286 287 /* clear the PBA here, as this function is meant to clean out all 288 * previous interrupts and enable the interrupt 289 */ 290 val = GLINT_DYN_CTL_INTENA_M | GLINT_DYN_CTL_CLEARPBA_M | 291 (itr << GLINT_DYN_CTL_ITR_INDX_S); 292 if (vsi) 293 if (test_bit(__ICE_DOWN, vsi->state)) 294 return; 295 wr32(hw, GLINT_DYN_CTL(vector), val); 296 } 297 298 static inline void ice_vsi_set_tc_cfg(struct ice_vsi *vsi) 299 { 300 vsi->tc_cfg.ena_tc = ICE_DFLT_TRAFFIC_CLASS; 301 vsi->tc_cfg.numtc = 1; 302 } 303 304 void ice_set_ethtool_ops(struct net_device *netdev); 305 int ice_up(struct ice_vsi *vsi); 306 int ice_down(struct ice_vsi *vsi); 307 int ice_set_rss(struct ice_vsi *vsi, u8 *seed, u8 *lut, u16 lut_size); 308 int ice_get_rss(struct ice_vsi *vsi, u8 *seed, u8 *lut, u16 lut_size); 309 void ice_fill_rss_lut(u8 *lut, u16 rss_table_size, u16 rss_size); 310 void ice_print_link_msg(struct ice_vsi *vsi, bool isup); 311 312 #endif /* _ICE_H_ */ 313