diff options
Diffstat (limited to 'drivers/net/ethernet/intel/ice/ice.h')
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice.h | 312 |
1 files changed, 312 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice.h b/drivers/net/ethernet/intel/ice/ice.h new file mode 100644 index 000000000000..d8b5fff581e7 --- /dev/null +++ b/drivers/net/ethernet/intel/ice/ice.h @@ -0,0 +1,312 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (c) 2018, Intel Corporation. */ + +#ifndef _ICE_H_ +#define _ICE_H_ + +#include <linux/types.h> +#include <linux/errno.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/netdevice.h> +#include <linux/compiler.h> +#include <linux/etherdevice.h> +#include <linux/skbuff.h> +#include <linux/cpumask.h> +#include <linux/rtnetlink.h> +#include <linux/if_vlan.h> +#include <linux/dma-mapping.h> +#include <linux/pci.h> +#include <linux/workqueue.h> +#include <linux/aer.h> +#include <linux/interrupt.h> +#include <linux/ethtool.h> +#include <linux/timer.h> +#include <linux/delay.h> +#include <linux/bitmap.h> +#include <linux/log2.h> +#include <linux/ip.h> +#include <linux/ipv6.h> +#include <linux/if_bridge.h> +#include <net/ipv6.h> +#include "ice_devids.h" +#include "ice_type.h" +#include "ice_txrx.h" +#include "ice_switch.h" +#include "ice_common.h" +#include "ice_sched.h" + +extern const char ice_drv_ver[]; +#define ICE_BAR0 0 +#define ICE_DFLT_NUM_DESC 128 +#define ICE_MIN_NUM_DESC 8 +#define ICE_MAX_NUM_DESC 8160 +#define ICE_REQ_DESC_MULTIPLE 32 +#define ICE_DFLT_TRAFFIC_CLASS BIT(0) +#define ICE_INT_NAME_STR_LEN (IFNAMSIZ + 16) +#define ICE_ETHTOOL_FWVER_LEN 32 +#define ICE_AQ_LEN 64 +#define ICE_MIN_MSIX 2 +#define ICE_NO_VSI 0xffff +#define ICE_MAX_VSI_ALLOC 130 +#define ICE_MAX_TXQS 2048 +#define ICE_MAX_RXQS 2048 +#define ICE_VSI_MAP_CONTIG 0 +#define ICE_VSI_MAP_SCATTER 1 +#define ICE_MAX_SCATTER_TXQS 16 +#define ICE_MAX_SCATTER_RXQS 16 +#define ICE_Q_WAIT_RETRY_LIMIT 10 +#define ICE_Q_WAIT_MAX_RETRY (5 * ICE_Q_WAIT_RETRY_LIMIT) +#define ICE_MAX_LG_RSS_QS 256 +#define ICE_MAX_SMALL_RSS_QS 8 +#define ICE_RES_VALID_BIT 0x8000 +#define ICE_RES_MISC_VEC_ID (ICE_RES_VALID_BIT - 1) +#define ICE_INVAL_Q_INDEX 0xffff + +#define ICE_VSIQF_HKEY_ARRAY_SIZE ((VSIQF_HKEY_MAX_INDEX + 1) * 4) + +#define ICE_DFLT_NETIF_M (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK) + +#define ICE_MAX_MTU (ICE_AQ_SET_MAC_FRAME_SIZE_MAX - \ + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN) + +#define ICE_UP_TABLE_TRANSLATE(val, i) \ + (((val) << ICE_AQ_VSI_UP_TABLE_UP##i##_S) & \ + ICE_AQ_VSI_UP_TABLE_UP##i##_M) + +#define ICE_TX_DESC(R, i) (&(((struct ice_tx_desc *)((R)->desc))[i])) +#define ICE_RX_DESC(R, i) (&(((union ice_32b_rx_flex_desc *)((R)->desc))[i])) +#define ICE_TX_CTX_DESC(R, i) (&(((struct ice_tx_ctx_desc *)((R)->desc))[i])) + +/* Macro for each VSI in a PF */ +#define ice_for_each_vsi(pf, i) \ + for ((i) = 0; (i) < (pf)->num_alloc_vsi; (i)++) + +/* Macros for each tx/rx ring in a VSI */ +#define ice_for_each_txq(vsi, i) \ + for ((i) = 0; (i) < (vsi)->num_txq; (i)++) + +#define ice_for_each_rxq(vsi, i) \ + for ((i) = 0; (i) < (vsi)->num_rxq; (i)++) + +struct ice_tc_info { + u16 qoffset; + u16 qcount; +}; + +struct ice_tc_cfg { + u8 numtc; /* Total number of enabled TCs */ + u8 ena_tc; /* TX map */ + struct ice_tc_info tc_info[ICE_MAX_TRAFFIC_CLASS]; +}; + +struct ice_res_tracker { + u16 num_entries; + u16 search_hint; + u16 list[1]; +}; + +struct ice_sw { + struct ice_pf *pf; + u16 sw_id; /* switch ID for this switch */ + u16 bridge_mode; /* VEB/VEPA/Port Virtualizer */ +}; + +enum ice_state { + __ICE_DOWN, + __ICE_NEEDS_RESTART, + __ICE_RESET_RECOVERY_PENDING, /* set by driver when reset starts */ + __ICE_PFR_REQ, /* set by driver and peers */ + __ICE_CORER_REQ, /* set by driver and peers */ + __ICE_GLOBR_REQ, /* set by driver and peers */ + __ICE_CORER_RECV, /* set by OICR handler */ + __ICE_GLOBR_RECV, /* set by OICR handler */ + __ICE_EMPR_RECV, /* set by OICR handler */ + __ICE_SUSPENDED, /* set on module remove path */ + __ICE_RESET_FAILED, /* set by reset/rebuild */ + __ICE_ADMINQ_EVENT_PENDING, + __ICE_FLTR_OVERFLOW_PROMISC, + __ICE_CFG_BUSY, + __ICE_SERVICE_SCHED, + __ICE_STATE_NBITS /* must be last */ +}; + +enum ice_vsi_flags { + ICE_VSI_FLAG_UMAC_FLTR_CHANGED, + ICE_VSI_FLAG_MMAC_FLTR_CHANGED, + ICE_VSI_FLAG_VLAN_FLTR_CHANGED, + ICE_VSI_FLAG_PROMISC_CHANGED, + ICE_VSI_FLAG_NBITS /* must be last */ +}; + +/* struct that defines a VSI, associated with a dev */ +struct ice_vsi { + struct net_device *netdev; + struct ice_sw *vsw; /* switch this VSI is on */ + struct ice_pf *back; /* back pointer to PF */ + struct ice_port_info *port_info; /* back pointer to port_info */ + struct ice_ring **rx_rings; /* rx ring array */ + struct ice_ring **tx_rings; /* tx ring array */ + struct ice_q_vector **q_vectors; /* q_vector array */ + + irqreturn_t (*irq_handler)(int irq, void *data); + + u64 tx_linearize; + DECLARE_BITMAP(state, __ICE_STATE_NBITS); + DECLARE_BITMAP(flags, ICE_VSI_FLAG_NBITS); + unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)]; + unsigned int current_netdev_flags; + u32 tx_restart; + u32 tx_busy; + u32 rx_buf_failed; + u32 rx_page_failed; + int num_q_vectors; + int base_vector; + enum ice_vsi_type type; + u16 vsi_num; /* HW (absolute) index of this VSI */ + u16 idx; /* software index in pf->vsi[] */ + + /* Interrupt thresholds */ + u16 work_lmt; + + /* RSS config */ + u16 rss_table_size; /* HW RSS table size */ + u16 rss_size; /* Allocated RSS queues */ + u8 *rss_hkey_user; /* User configured hash keys */ + u8 *rss_lut_user; /* User configured lookup table entries */ + u8 rss_lut_type; /* used to configure Get/Set RSS LUT AQ call */ + + u16 max_frame; + u16 rx_buf_len; + + struct ice_aqc_vsi_props info; /* VSI properties */ + + /* VSI stats */ + struct rtnl_link_stats64 net_stats; + struct ice_eth_stats eth_stats; + struct ice_eth_stats eth_stats_prev; + + struct list_head tmp_sync_list; /* MAC filters to be synced */ + struct list_head tmp_unsync_list; /* MAC filters to be unsynced */ + + bool irqs_ready; + bool current_isup; /* Sync 'link up' logging */ + bool stat_offsets_loaded; + + /* queue information */ + u8 tx_mapping_mode; /* ICE_MAP_MODE_[CONTIG|SCATTER] */ + u8 rx_mapping_mode; /* ICE_MAP_MODE_[CONTIG|SCATTER] */ + u16 txq_map[ICE_MAX_TXQS]; /* index in pf->avail_txqs */ + u16 rxq_map[ICE_MAX_RXQS]; /* index in pf->avail_rxqs */ + u16 alloc_txq; /* Allocated Tx queues */ + u16 num_txq; /* Used Tx queues */ + u16 alloc_rxq; /* Allocated Rx queues */ + u16 num_rxq; /* Used Rx queues */ + u16 num_desc; + struct ice_tc_cfg tc_cfg; +} ____cacheline_internodealigned_in_smp; + +/* struct that defines an interrupt vector */ +struct ice_q_vector { + struct ice_vsi *vsi; + cpumask_t affinity_mask; + struct napi_struct napi; + struct ice_ring_container rx; + struct ice_ring_container tx; + struct irq_affinity_notify affinity_notify; + u16 v_idx; /* index in the vsi->q_vector array. */ + u8 num_ring_tx; /* total number of tx rings in vector */ + u8 num_ring_rx; /* total number of rx rings in vector */ + char name[ICE_INT_NAME_STR_LEN]; +} ____cacheline_internodealigned_in_smp; + +enum ice_pf_flags { + ICE_FLAG_MSIX_ENA, + ICE_FLAG_FLTR_SYNC, + ICE_FLAG_RSS_ENA, + ICE_PF_FLAGS_NBITS /* must be last */ +}; + +struct ice_pf { + struct pci_dev *pdev; + struct msix_entry *msix_entries; + struct ice_res_tracker *irq_tracker; + struct ice_vsi **vsi; /* VSIs created by the driver */ + struct ice_sw *first_sw; /* first switch created by firmware */ + DECLARE_BITMAP(state, __ICE_STATE_NBITS); + DECLARE_BITMAP(avail_txqs, ICE_MAX_TXQS); + DECLARE_BITMAP(avail_rxqs, ICE_MAX_RXQS); + DECLARE_BITMAP(flags, ICE_PF_FLAGS_NBITS); + unsigned long serv_tmr_period; + unsigned long serv_tmr_prev; + struct timer_list serv_tmr; + struct work_struct serv_task; + struct mutex avail_q_mutex; /* protects access to avail_[rx|tx]qs */ + struct mutex sw_mutex; /* lock for protecting VSI alloc flow */ + u32 msg_enable; + u32 hw_csum_rx_error; + u32 oicr_idx; /* Other interrupt cause vector index */ + u32 num_lan_msix; /* Total MSIX vectors for base driver */ + u32 num_avail_msix; /* remaining MSIX vectors left unclaimed */ + u16 num_lan_tx; /* num lan tx queues setup */ + u16 num_lan_rx; /* num lan rx queues setup */ + u16 q_left_tx; /* remaining num tx queues left unclaimed */ + u16 q_left_rx; /* remaining num rx queues left unclaimed */ + u16 next_vsi; /* Next free slot in pf->vsi[] - 0-based! */ + u16 num_alloc_vsi; + u16 corer_count; /* Core reset count */ + u16 globr_count; /* Global reset count */ + u16 empr_count; /* EMP reset count */ + u16 pfr_count; /* PF reset count */ + + struct ice_hw_port_stats stats; + struct ice_hw_port_stats stats_prev; + struct ice_hw hw; + bool stat_prev_loaded; /* has previous stats been loaded */ + char int_name[ICE_INT_NAME_STR_LEN]; +}; + +struct ice_netdev_priv { + struct ice_vsi *vsi; +}; + +/** + * ice_irq_dynamic_ena - Enable default interrupt generation settings + * @hw: pointer to hw struct + * @vsi: pointer to vsi struct, can be NULL + * @q_vector: pointer to q_vector, can be NULL + */ +static inline void ice_irq_dynamic_ena(struct ice_hw *hw, struct ice_vsi *vsi, + struct ice_q_vector *q_vector) +{ + u32 vector = (vsi && q_vector) ? vsi->base_vector + q_vector->v_idx : + ((struct ice_pf *)hw->back)->oicr_idx; + int itr = ICE_ITR_NONE; + u32 val; + + /* clear the PBA here, as this function is meant to clean out all + * previous interrupts and enable the interrupt + */ + val = GLINT_DYN_CTL_INTENA_M | GLINT_DYN_CTL_CLEARPBA_M | + (itr << GLINT_DYN_CTL_ITR_INDX_S); + if (vsi) + if (test_bit(__ICE_DOWN, vsi->state)) + return; + wr32(hw, GLINT_DYN_CTL(vector), val); +} + +static inline void ice_vsi_set_tc_cfg(struct ice_vsi *vsi) +{ + vsi->tc_cfg.ena_tc = ICE_DFLT_TRAFFIC_CLASS; + vsi->tc_cfg.numtc = 1; +} + +void ice_set_ethtool_ops(struct net_device *netdev); +int ice_up(struct ice_vsi *vsi); +int ice_down(struct ice_vsi *vsi); +int ice_set_rss(struct ice_vsi *vsi, u8 *seed, u8 *lut, u16 lut_size); +int ice_get_rss(struct ice_vsi *vsi, u8 *seed, u8 *lut, u16 lut_size); +void ice_fill_rss_lut(u8 *lut, u16 rss_table_size, u16 rss_size); +void ice_print_link_msg(struct ice_vsi *vsi, bool isup); + +#endif /* _ICE_H_ */ |