/******************************************************************************* * * Intel Ethernet Controller XL710 Family Linux Virtual Function Driver * Copyright(c) 2013 - 2014 Intel Corporation. * * This program is free software; you can redistribute it and/or modify it * under the terms and conditions of the GNU General Public License, * version 2, as published by the Free Software Foundation. * * This program is distributed in the hope it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * * You should have received a copy of the GNU General Public License along * with this program. If not, see . * * The full GNU General Public License is included in this distribution in * the file called "COPYING". * * Contact Information: * e1000-devel Mailing List * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 * ******************************************************************************/ #ifndef _I40EVF_H_ #define _I40EVF_H_ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "i40e_type.h" #include "i40e_virtchnl.h" #include "i40e_txrx.h" #define DEFAULT_DEBUG_LEVEL_SHIFT 3 #define PFX "i40evf: " /* 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; unsigned long state; int base_vector; u16 work_limit; /* high bit set means dynamic, use accessor routines to read/write. * hardware only supports 2us resolution for the ITR registers. * these values always store the USER setting, and must be converted * before programming to a register. */ u16 rx_itr_setting; u16 tx_itr_setting; u16 qs_handle; u8 *rss_hkey_user; /* User configured hash keys */ u8 *rss_lut_user; /* User configured lookup table entries */ }; /* 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 /* Supported Rx Buffer Sizes */ #define I40EVF_RXBUFFER_64 64 /* Used for packet split */ #define I40EVF_RXBUFFER_128 128 /* Used for packet split */ #define I40EVF_RXBUFFER_256 256 /* Used for packet split */ #define I40EVF_RXBUFFER_2048 2048 #define I40EVF_MAX_RXBUFFER 16384 /* largest size for single descriptor */ #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 MAX_QUEUES 16 #define I40EVF_HKEY_ARRAY_SIZE ((I40E_VFQF_HKEY_MAX_INDEX + 1) * 4) #define I40EVF_HLUT_ARRAY_SIZE ((I40E_VFQF_HLUT_MAX_INDEX + 1) * 4) /* 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; unsigned long reg_idx; struct i40e_ring_container rx; struct i40e_ring_container tx; u32 ring_mask; u8 num_ringpairs; /* total number of ring pairs in vector */ #define ITR_COUNTDOWN_START 100 u8 itr_countdown; /* when 0 or 1 update ITR */ int v_idx; /* vector index in list */ char name[IFNAMSIZ + 9]; bool arm_wb_state; cpumask_var_t affinity_mask; }; /* 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 */ }; /* 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_TESTING, /* in ethtool self-test */ __I40EVF_RUNNING, /* opened, working */ }; enum i40evf_critical_section_t { __I40EVF_IN_CRITICAL_TASK, /* cannot be interrupted */ }; /* make common code happy */ #define __I40E_DOWN __I40EVF_DOWN /* 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 init_task; struct i40e_q_vector *q_vectors; struct list_head vlan_filter_list; char misc_vector_name[IFNAMSIZ + 9]; int num_active_queues; /* TX */ struct i40e_ring *tx_rings; u32 tx_timeout_count; struct list_head mac_filter_list; u32 tx_desc_count; /* RX */ struct i40e_ring *rx_rings; u64 hw_csum_rx_error; u32 rx_desc_count; int num_msix_vectors; struct msix_entry *msix_entries; u32 flags; #define I40EVF_FLAG_RX_CSUM_ENABLED BIT(0) #define I40EVF_FLAG_RX_1BUF_CAPABLE BIT(1) #define I40EVF_FLAG_RX_PS_CAPABLE BIT(2) #define I40EVF_FLAG_RX_PS_ENABLED BIT(3) #define I40EVF_FLAG_IMIR_ENABLED BIT(5) #define I40EVF_FLAG_MQ_CAPABLE BIT(6) #define I40EVF_FLAG_NEED_LINK_UPDATE BIT(7) #define I40EVF_FLAG_PF_COMMS_FAILED BIT(8) #define I40EVF_FLAG_RESET_PENDING BIT(9) #define I40EVF_FLAG_RESET_NEEDED BIT(10) #define I40EVF_FLAG_WB_ON_ITR_CAPABLE BIT(11) #define I40EVF_FLAG_OUTER_UDP_CSUM_CAPABLE BIT(12) #define I40EVF_FLAG_ADDR_SET_BY_PF BIT(13) /* duplicates for common code */ #define I40E_FLAG_FDIR_ATR_ENABLED 0 #define I40E_FLAG_DCB_ENABLED 0 #define I40E_FLAG_RX_CSUM_ENABLED I40EVF_FLAG_RX_CSUM_ENABLED #define I40E_FLAG_WB_ON_ITR_CAPABLE I40EVF_FLAG_WB_ON_ITR_CAPABLE #define I40E_FLAG_OUTER_UDP_CSUM_CAPABLE I40EVF_FLAG_OUTER_UDP_CSUM_CAPABLE /* 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) #define I40EVF_FLAG_AQ_GET_CONFIG BIT(10) /* OS defined structs */ struct net_device *netdev; struct pci_dev *pdev; struct net_device_stats net_stats; 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 i40e_virtchnl_ops current_op; #define CLIENT_ENABLED(_a) ((_a)->vf_res->vf_offload_flags & \ I40E_VIRTCHNL_VF_OFFLOAD_IWARP) #define RSS_AQ(_a) ((_a)->vf_res->vf_offload_flags & \ I40E_VIRTCHNL_VF_OFFLOAD_RSS_AQ) #define VLAN_ALLOWED(_a) ((_a)->vf_res->vf_offload_flags & \ I40E_VIRTCHNL_VF_OFFLOAD_VLAN) struct i40e_virtchnl_vf_resource *vf_res; /* incl. all VSIs */ struct i40e_virtchnl_vsi_resource *vsi_res; /* our LAN VSI */ struct i40e_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; }; /* 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_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); 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_virtchnl_completion(struct i40evf_adapter *adapter, enum i40e_virtchnl_ops v_opcode, i40e_status v_retval, u8 *msg, u16 msglen); int i40evf_config_rss(struct i40e_vsi *vsi, const u8 *seed, u8 *lut, u16 lut_size); int i40evf_get_rss(struct i40e_vsi *vsi, const u8 *seed, u8 *lut, u16 lut_size); #endif /* _I40EVF_H_ */