diff options
Diffstat (limited to 'drivers/net/ethernet/intel/iavf/i40evf.h')
| -rw-r--r-- | drivers/net/ethernet/intel/iavf/i40evf.h | 427 |
1 files changed, 427 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/iavf/i40evf.h b/drivers/net/ethernet/intel/iavf/i40evf.h new file mode 100644 index 000000000..96e537a35 --- /dev/null +++ b/drivers/net/ethernet/intel/iavf/i40evf.h @@ -0,0 +1,427 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright(c) 2013 - 2018 Intel Corporation. */ + +#ifndef _I40EVF_H_ +#define _I40EVF_H_ + +#include <linux/module.h> +#include <linux/pci.h> +#include <linux/aer.h> +#include <linux/netdevice.h> +#include <linux/vmalloc.h> +#include <linux/interrupt.h> +#include <linux/ethtool.h> +#include <linux/if_vlan.h> +#include <linux/ip.h> +#include <linux/tcp.h> +#include <linux/sctp.h> +#include <linux/ipv6.h> +#include <linux/kernel.h> +#include <linux/bitops.h> +#include <linux/timer.h> +#include <linux/workqueue.h> +#include <linux/wait.h> +#include <linux/delay.h> +#include <linux/gfp.h> +#include <linux/skbuff.h> +#include <linux/dma-mapping.h> +#include <linux/etherdevice.h> +#include <linux/socket.h> +#include <linux/jiffies.h> +#include <net/ip6_checksum.h> +#include <net/pkt_cls.h> +#include <net/udp.h> +#include <net/tc_act/tc_gact.h> +#include <net/tc_act/tc_mirred.h> + +#include "i40e_type.h" +#include <linux/avf/virtchnl.h> +#include "i40e_txrx.h" + +#define DEFAULT_DEBUG_LEVEL_SHIFT 3 +#define PFX "i40evf: " + +/* VSI state flags shared with common code */ +enum i40evf_vsi_state_t { + __I40E_VSI_DOWN, + /* This must be last as it determines the size of the BITMAP */ + __I40E_VSI_STATE_SIZE__, +}; + +/* dummy struct to make common code less painful */ +struct i40e_vsi { + struct i40evf_adapter *back; + struct net_device *netdev; + unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)]; + u16 seid; + u16 id; + DECLARE_BITMAP(state, __I40E_VSI_STATE_SIZE__); + int base_vector; + u16 work_limit; + u16 qs_handle; + void *priv; /* client driver data reference. */ +}; + +/* How many Rx Buffers do we bundle into one write to the hardware ? */ +#define I40EVF_RX_BUFFER_WRITE 16 /* Must be power of 2 */ +#define I40EVF_DEFAULT_TXD 512 +#define I40EVF_DEFAULT_RXD 512 +#define I40EVF_MAX_TXD 4096 +#define I40EVF_MIN_TXD 64 +#define I40EVF_MAX_RXD 4096 +#define I40EVF_MIN_RXD 64 +#define I40EVF_REQ_DESCRIPTOR_MULTIPLE 32 +#define I40EVF_MAX_AQ_BUF_SIZE 4096 +#define I40EVF_AQ_LEN 32 +#define I40EVF_AQ_MAX_ERR 20 /* times to try before resetting AQ */ + +#define MAXIMUM_ETHERNET_VLAN_SIZE (VLAN_ETH_FRAME_LEN + ETH_FCS_LEN) + +#define I40E_RX_DESC(R, i) (&(((union i40e_32byte_rx_desc *)((R)->desc))[i])) +#define I40E_TX_DESC(R, i) (&(((struct i40e_tx_desc *)((R)->desc))[i])) +#define I40E_TX_CTXTDESC(R, i) \ + (&(((struct i40e_tx_context_desc *)((R)->desc))[i])) +#define I40EVF_MAX_REQ_QUEUES 4 + +#define I40EVF_HKEY_ARRAY_SIZE ((I40E_VFQF_HKEY_MAX_INDEX + 1) * 4) +#define I40EVF_HLUT_ARRAY_SIZE ((I40E_VFQF_HLUT_MAX_INDEX + 1) * 4) +#define I40EVF_MBPS_DIVISOR 125000 /* divisor to convert to Mbps */ + +/* MAX_MSIX_Q_VECTORS of these are allocated, + * but we only use one per queue-specific vector. + */ +struct i40e_q_vector { + struct i40evf_adapter *adapter; + struct i40e_vsi *vsi; + struct napi_struct napi; + struct i40e_ring_container rx; + struct i40e_ring_container tx; + u32 ring_mask; + u8 itr_countdown; /* when 0 should adjust adaptive ITR */ + u8 num_ringpairs; /* total number of ring pairs in vector */ + u16 v_idx; /* index in the vsi->q_vector array. */ + u16 reg_idx; /* register index of the interrupt */ + char name[IFNAMSIZ + 15]; + bool arm_wb_state; + cpumask_t affinity_mask; + struct irq_affinity_notify affinity_notify; +}; + +/* Helper macros to switch between ints/sec and what the register uses. + * And yes, it's the same math going both ways. The lowest value + * supported by all of the i40e hardware is 8. + */ +#define EITR_INTS_PER_SEC_TO_REG(_eitr) \ + ((_eitr) ? (1000000000 / ((_eitr) * 256)) : 8) +#define EITR_REG_TO_INTS_PER_SEC EITR_INTS_PER_SEC_TO_REG + +#define I40EVF_DESC_UNUSED(R) \ + ((((R)->next_to_clean > (R)->next_to_use) ? 0 : (R)->count) + \ + (R)->next_to_clean - (R)->next_to_use - 1) + +#define I40EVF_RX_DESC_ADV(R, i) \ + (&(((union i40e_adv_rx_desc *)((R).desc))[i])) +#define I40EVF_TX_DESC_ADV(R, i) \ + (&(((union i40e_adv_tx_desc *)((R).desc))[i])) +#define I40EVF_TX_CTXTDESC_ADV(R, i) \ + (&(((struct i40e_adv_tx_context_desc *)((R).desc))[i])) + +#define OTHER_VECTOR 1 +#define NONQ_VECS (OTHER_VECTOR) + +#define MIN_MSIX_Q_VECTORS 1 +#define MIN_MSIX_COUNT (MIN_MSIX_Q_VECTORS + NONQ_VECS) + +#define I40EVF_QUEUE_END_OF_LIST 0x7FF +#define I40EVF_FREE_VECTOR 0x7FFF +struct i40evf_mac_filter { + struct list_head list; + u8 macaddr[ETH_ALEN]; + bool remove; /* filter needs to be removed */ + bool add; /* filter needs to be added */ +}; + +struct i40evf_vlan_filter { + struct list_head list; + u16 vlan; + bool remove; /* filter needs to be removed */ + bool add; /* filter needs to be added */ +}; + +#define I40EVF_MAX_TRAFFIC_CLASS 4 +/* State of traffic class creation */ +enum i40evf_tc_state_t { + __I40EVF_TC_INVALID, /* no traffic class, default state */ + __I40EVF_TC_RUNNING, /* traffic classes have been created */ +}; + +/* channel info */ +struct i40evf_channel_config { + struct virtchnl_channel_info ch_info[I40EVF_MAX_TRAFFIC_CLASS]; + enum i40evf_tc_state_t state; + u8 total_qps; +}; + +/* State of cloud filter */ +enum i40evf_cloud_filter_state_t { + __I40EVF_CF_INVALID, /* cloud filter not added */ + __I40EVF_CF_ADD_PENDING, /* cloud filter pending add by the PF */ + __I40EVF_CF_DEL_PENDING, /* cloud filter pending del by the PF */ + __I40EVF_CF_ACTIVE, /* cloud filter is active */ +}; + +/* Driver state. The order of these is important! */ +enum i40evf_state_t { + __I40EVF_STARTUP, /* driver loaded, probe complete */ + __I40EVF_REMOVE, /* driver is being unloaded */ + __I40EVF_INIT_VERSION_CHECK, /* aq msg sent, awaiting reply */ + __I40EVF_INIT_GET_RESOURCES, /* aq msg sent, awaiting reply */ + __I40EVF_INIT_SW, /* got resources, setting up structs */ + __I40EVF_RESETTING, /* in reset */ + /* Below here, watchdog is running */ + __I40EVF_DOWN, /* ready, can be opened */ + __I40EVF_DOWN_PENDING, /* descending, waiting for watchdog */ + __I40EVF_TESTING, /* in ethtool self-test */ + __I40EVF_RUNNING, /* opened, working */ +}; + +enum i40evf_critical_section_t { + __I40EVF_IN_CRITICAL_TASK, /* cannot be interrupted */ + __I40EVF_IN_CLIENT_TASK, + __I40EVF_IN_REMOVE_TASK, /* device being removed */ +}; + +#define I40EVF_CLOUD_FIELD_OMAC 0x01 +#define I40EVF_CLOUD_FIELD_IMAC 0x02 +#define I40EVF_CLOUD_FIELD_IVLAN 0x04 +#define I40EVF_CLOUD_FIELD_TEN_ID 0x08 +#define I40EVF_CLOUD_FIELD_IIP 0x10 + +#define I40EVF_CF_FLAGS_OMAC I40EVF_CLOUD_FIELD_OMAC +#define I40EVF_CF_FLAGS_IMAC I40EVF_CLOUD_FIELD_IMAC +#define I40EVF_CF_FLAGS_IMAC_IVLAN (I40EVF_CLOUD_FIELD_IMAC |\ + I40EVF_CLOUD_FIELD_IVLAN) +#define I40EVF_CF_FLAGS_IMAC_TEN_ID (I40EVF_CLOUD_FIELD_IMAC |\ + I40EVF_CLOUD_FIELD_TEN_ID) +#define I40EVF_CF_FLAGS_OMAC_TEN_ID_IMAC (I40EVF_CLOUD_FIELD_OMAC |\ + I40EVF_CLOUD_FIELD_IMAC |\ + I40EVF_CLOUD_FIELD_TEN_ID) +#define I40EVF_CF_FLAGS_IMAC_IVLAN_TEN_ID (I40EVF_CLOUD_FIELD_IMAC |\ + I40EVF_CLOUD_FIELD_IVLAN |\ + I40EVF_CLOUD_FIELD_TEN_ID) +#define I40EVF_CF_FLAGS_IIP I40E_CLOUD_FIELD_IIP + +/* bookkeeping of cloud filters */ +struct i40evf_cloud_filter { + enum i40evf_cloud_filter_state_t state; + struct list_head list; + struct virtchnl_filter f; + unsigned long cookie; + bool del; /* filter needs to be deleted */ + bool add; /* filter needs to be added */ +}; + +/* board specific private data structure */ +struct i40evf_adapter { + struct timer_list watchdog_timer; + struct work_struct reset_task; + struct work_struct adminq_task; + struct delayed_work client_task; + struct delayed_work init_task; + wait_queue_head_t down_waitqueue; + struct i40e_q_vector *q_vectors; + struct list_head vlan_filter_list; + struct list_head mac_filter_list; + /* Lock to protect accesses to MAC and VLAN lists */ + spinlock_t mac_vlan_list_lock; + char misc_vector_name[IFNAMSIZ + 9]; + int num_active_queues; + int num_req_queues; + + /* TX */ + struct i40e_ring *tx_rings; + u32 tx_timeout_count; + u32 tx_desc_count; + + /* RX */ + struct i40e_ring *rx_rings; + u64 hw_csum_rx_error; + u32 rx_desc_count; + int num_msix_vectors; + int num_iwarp_msix; + int iwarp_base_vector; + u32 client_pending; + struct i40e_client_instance *cinst; + struct msix_entry *msix_entries; + + u32 flags; +#define I40EVF_FLAG_RX_CSUM_ENABLED BIT(0) +#define I40EVF_FLAG_PF_COMMS_FAILED BIT(3) +#define I40EVF_FLAG_RESET_PENDING BIT(4) +#define I40EVF_FLAG_RESET_NEEDED BIT(5) +#define I40EVF_FLAG_WB_ON_ITR_CAPABLE BIT(6) +#define I40EVF_FLAG_ADDR_SET_BY_PF BIT(8) +#define I40EVF_FLAG_SERVICE_CLIENT_REQUESTED BIT(9) +#define I40EVF_FLAG_CLIENT_NEEDS_OPEN BIT(10) +#define I40EVF_FLAG_CLIENT_NEEDS_CLOSE BIT(11) +#define I40EVF_FLAG_CLIENT_NEEDS_L2_PARAMS BIT(12) +#define I40EVF_FLAG_PROMISC_ON BIT(13) +#define I40EVF_FLAG_ALLMULTI_ON BIT(14) +#define I40EVF_FLAG_LEGACY_RX BIT(15) +#define I40EVF_FLAG_REINIT_ITR_NEEDED BIT(16) +#define I40EVF_FLAG_QUEUES_DISABLED BIT(17) +/* duplicates for common code */ +#define I40E_FLAG_DCB_ENABLED 0 +#define I40E_FLAG_RX_CSUM_ENABLED I40EVF_FLAG_RX_CSUM_ENABLED +#define I40E_FLAG_LEGACY_RX I40EVF_FLAG_LEGACY_RX + /* flags for admin queue service task */ + u32 aq_required; +#define I40EVF_FLAG_AQ_ENABLE_QUEUES BIT(0) +#define I40EVF_FLAG_AQ_DISABLE_QUEUES BIT(1) +#define I40EVF_FLAG_AQ_ADD_MAC_FILTER BIT(2) +#define I40EVF_FLAG_AQ_ADD_VLAN_FILTER BIT(3) +#define I40EVF_FLAG_AQ_DEL_MAC_FILTER BIT(4) +#define I40EVF_FLAG_AQ_DEL_VLAN_FILTER BIT(5) +#define I40EVF_FLAG_AQ_CONFIGURE_QUEUES BIT(6) +#define I40EVF_FLAG_AQ_MAP_VECTORS BIT(7) +#define I40EVF_FLAG_AQ_HANDLE_RESET BIT(8) +#define I40EVF_FLAG_AQ_CONFIGURE_RSS BIT(9) /* direct AQ config */ +#define I40EVF_FLAG_AQ_GET_CONFIG BIT(10) +/* Newer style, RSS done by the PF so we can ignore hardware vagaries. */ +#define I40EVF_FLAG_AQ_GET_HENA BIT(11) +#define I40EVF_FLAG_AQ_SET_HENA BIT(12) +#define I40EVF_FLAG_AQ_SET_RSS_KEY BIT(13) +#define I40EVF_FLAG_AQ_SET_RSS_LUT BIT(14) +#define I40EVF_FLAG_AQ_REQUEST_PROMISC BIT(15) +#define I40EVF_FLAG_AQ_RELEASE_PROMISC BIT(16) +#define I40EVF_FLAG_AQ_REQUEST_ALLMULTI BIT(17) +#define I40EVF_FLAG_AQ_RELEASE_ALLMULTI BIT(18) +#define I40EVF_FLAG_AQ_ENABLE_VLAN_STRIPPING BIT(19) +#define I40EVF_FLAG_AQ_DISABLE_VLAN_STRIPPING BIT(20) +#define I40EVF_FLAG_AQ_ENABLE_CHANNELS BIT(21) +#define I40EVF_FLAG_AQ_DISABLE_CHANNELS BIT(22) +#define I40EVF_FLAG_AQ_ADD_CLOUD_FILTER BIT(23) +#define I40EVF_FLAG_AQ_DEL_CLOUD_FILTER BIT(24) + + /* OS defined structs */ + struct net_device *netdev; + struct pci_dev *pdev; + + struct i40e_hw hw; /* defined in i40e_type.h */ + + enum i40evf_state_t state; + unsigned long crit_section; + + struct work_struct watchdog_task; + bool netdev_registered; + bool link_up; + enum virtchnl_link_speed link_speed; + enum virtchnl_ops current_op; +#define CLIENT_ALLOWED(_a) ((_a)->vf_res ? \ + (_a)->vf_res->vf_cap_flags & \ + VIRTCHNL_VF_OFFLOAD_IWARP : \ + 0) +#define CLIENT_ENABLED(_a) ((_a)->cinst) +/* RSS by the PF should be preferred over RSS via other methods. */ +#define RSS_PF(_a) ((_a)->vf_res->vf_cap_flags & \ + VIRTCHNL_VF_OFFLOAD_RSS_PF) +#define RSS_AQ(_a) ((_a)->vf_res->vf_cap_flags & \ + VIRTCHNL_VF_OFFLOAD_RSS_AQ) +#define RSS_REG(_a) (!((_a)->vf_res->vf_cap_flags & \ + (VIRTCHNL_VF_OFFLOAD_RSS_AQ | \ + VIRTCHNL_VF_OFFLOAD_RSS_PF))) +#define VLAN_ALLOWED(_a) ((_a)->vf_res->vf_cap_flags & \ + VIRTCHNL_VF_OFFLOAD_VLAN) + struct virtchnl_vf_resource *vf_res; /* incl. all VSIs */ + struct virtchnl_vsi_resource *vsi_res; /* our LAN VSI */ + struct virtchnl_version_info pf_version; +#define PF_IS_V11(_a) (((_a)->pf_version.major == 1) && \ + ((_a)->pf_version.minor == 1)) + u16 msg_enable; + struct i40e_eth_stats current_stats; + struct i40e_vsi vsi; + u32 aq_wait_count; + /* RSS stuff */ + u64 hena; + u16 rss_key_size; + u16 rss_lut_size; + u8 *rss_key; + u8 *rss_lut; + /* ADQ related members */ + struct i40evf_channel_config ch_config; + u8 num_tc; + struct list_head cloud_filter_list; + /* lock to protest access to the cloud filter list */ + spinlock_t cloud_filter_list_lock; + u16 num_cloud_filters; +}; + + +/* Ethtool Private Flags */ + +/* lan device */ +struct i40e_device { + struct list_head list; + struct i40evf_adapter *vf; +}; + +/* needed by i40evf_ethtool.c */ +extern char i40evf_driver_name[]; +extern const char i40evf_driver_version[]; + +int i40evf_up(struct i40evf_adapter *adapter); +void i40evf_down(struct i40evf_adapter *adapter); +int i40evf_process_config(struct i40evf_adapter *adapter); +void i40evf_schedule_reset(struct i40evf_adapter *adapter); +void i40evf_reset(struct i40evf_adapter *adapter); +void i40evf_set_ethtool_ops(struct net_device *netdev); +void i40evf_update_stats(struct i40evf_adapter *adapter); +void i40evf_reset_interrupt_capability(struct i40evf_adapter *adapter); +int i40evf_init_interrupt_scheme(struct i40evf_adapter *adapter); +void i40evf_irq_enable_queues(struct i40evf_adapter *adapter, u32 mask); +void i40evf_free_all_tx_resources(struct i40evf_adapter *adapter); +void i40evf_free_all_rx_resources(struct i40evf_adapter *adapter); + +void i40e_napi_add_all(struct i40evf_adapter *adapter); +void i40e_napi_del_all(struct i40evf_adapter *adapter); + +int i40evf_send_api_ver(struct i40evf_adapter *adapter); +int i40evf_verify_api_ver(struct i40evf_adapter *adapter); +int i40evf_send_vf_config_msg(struct i40evf_adapter *adapter); +int i40evf_get_vf_config(struct i40evf_adapter *adapter); +void i40evf_irq_enable(struct i40evf_adapter *adapter, bool flush); +void i40evf_configure_queues(struct i40evf_adapter *adapter); +void i40evf_deconfigure_queues(struct i40evf_adapter *adapter); +void i40evf_enable_queues(struct i40evf_adapter *adapter); +void i40evf_disable_queues(struct i40evf_adapter *adapter); +void i40evf_map_queues(struct i40evf_adapter *adapter); +int i40evf_request_queues(struct i40evf_adapter *adapter, int num); +void i40evf_add_ether_addrs(struct i40evf_adapter *adapter); +void i40evf_del_ether_addrs(struct i40evf_adapter *adapter); +void i40evf_add_vlans(struct i40evf_adapter *adapter); +void i40evf_del_vlans(struct i40evf_adapter *adapter); +void i40evf_set_promiscuous(struct i40evf_adapter *adapter, int flags); +void i40evf_request_stats(struct i40evf_adapter *adapter); +void i40evf_request_reset(struct i40evf_adapter *adapter); +void i40evf_get_hena(struct i40evf_adapter *adapter); +void i40evf_set_hena(struct i40evf_adapter *adapter); +void i40evf_set_rss_key(struct i40evf_adapter *adapter); +void i40evf_set_rss_lut(struct i40evf_adapter *adapter); +void i40evf_enable_vlan_stripping(struct i40evf_adapter *adapter); +void i40evf_disable_vlan_stripping(struct i40evf_adapter *adapter); +void i40evf_virtchnl_completion(struct i40evf_adapter *adapter, + enum virtchnl_ops v_opcode, + i40e_status v_retval, u8 *msg, u16 msglen); +int i40evf_config_rss(struct i40evf_adapter *adapter); +int i40evf_lan_add_device(struct i40evf_adapter *adapter); +int i40evf_lan_del_device(struct i40evf_adapter *adapter); +void i40evf_client_subtask(struct i40evf_adapter *adapter); +void i40evf_notify_client_message(struct i40e_vsi *vsi, u8 *msg, u16 len); +void i40evf_notify_client_l2_params(struct i40e_vsi *vsi); +void i40evf_notify_client_open(struct i40e_vsi *vsi); +void i40evf_notify_client_close(struct i40e_vsi *vsi, bool reset); +void i40evf_enable_channels(struct i40evf_adapter *adapter); +void i40evf_disable_channels(struct i40evf_adapter *adapter); +void i40evf_add_cloud_filter(struct i40evf_adapter *adapter); +void i40evf_del_cloud_filter(struct i40evf_adapter *adapter); +#endif /* _I40EVF_H_ */ |