| /******************************************************************************* |
| * |
| * Intel Ethernet Controller XL710 Family Linux Virtual Function Driver |
| * Copyright(c) 2013 - 2016 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 <http://www.gnu.org/licenses/>. |
| * |
| * The full GNU General Public License is included in this distribution in |
| * the file called "COPYING". |
| * |
| * Contact Information: |
| * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> |
| * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
| * |
| ******************************************************************************/ |
| |
| #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 <net/ip6_checksum.h> |
| #include <net/udp.h> |
| |
| #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; |
| }; |
| |
| /* 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_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_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 */ |
| }; |
| /* 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_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) |
| #define I40EVF_FLAG_PROMISC_ON BIT(15) |
| /* 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) /* 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) |
| |
| /* 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 ? \ |
| (_a)->vf_res->vf_offload_flags & \ |
| I40E_VIRTCHNL_VF_OFFLOAD_IWARP : \ |
| 0) |
| /* RSS by the PF should be preferred over RSS via other methods. */ |
| #define RSS_PF(_a) ((_a)->vf_res->vf_offload_flags & \ |
| I40E_VIRTCHNL_VF_OFFLOAD_RSS_PF) |
| #define RSS_AQ(_a) ((_a)->vf_res->vf_offload_flags & \ |
| I40E_VIRTCHNL_VF_OFFLOAD_RSS_AQ) |
| #define RSS_REG(_a) (!((_a)->vf_res->vf_offload_flags & \ |
| (I40E_VIRTCHNL_VF_OFFLOAD_RSS_AQ | \ |
| I40E_VIRTCHNL_VF_OFFLOAD_RSS_PF))) |
| #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; |
| /* RSS stuff */ |
| u64 hena; |
| u16 rss_key_size; |
| u16 rss_lut_size; |
| u8 *rss_key; |
| u8 *rss_lut; |
| }; |
| |
| |
| /* Ethtool Private Flags */ |
| |
| /* 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); |
| 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_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 i40evf_adapter *adapter); |
| #endif /* _I40EVF_H_ */ |