/* *------------------------------------------------------------------ * Copyright (c) 2018 Cisco and/or its affiliates. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. *------------------------------------------------------------------ */ #ifndef _AVF_H_ #define _AVF_H_ #include #include #include #include #include #include #include #include #include #include #define AVF_QUEUE_SZ_MAX 4096 #define AVF_QUEUE_SZ_MIN 64 #define AVF_AQ_ENQ_SUSPEND_TIME 50e-6 #define AVF_AQ_ENQ_MAX_WAIT_TIME 250e-3 #define AVF_AQ_BUF_SIZE 4096 #define AVF_RESET_SUSPEND_TIME 20e-3 #define AVF_RESET_MAX_WAIT_TIME 1 #define AVF_SEND_TO_PF_SUSPEND_TIME 10e-3 #define AVF_SEND_TO_PF_MAX_WAIT_TIME 1 #define AVF_RXD_STATUS(x) (1ULL << x) #define AVF_RXD_STATUS_DD AVF_RXD_STATUS(0) #define AVF_RXD_STATUS_EOP AVF_RXD_STATUS(1) #define AVF_RXD_STATUS_FLM AVF_RXD_STATUS (11) #define AVF_RXD_ERROR_SHIFT 19 #define AVF_RXD_PTYPE_SHIFT 30 #define AVF_RXD_LEN_SHIFT 38 #define AVF_RX_MAX_DESC_IN_CHAIN 5 #define AVF_RXD_ERROR_IPE (1ULL << (AVF_RXD_ERROR_SHIFT + 3)) #define AVF_RXD_ERROR_L4E (1ULL << (AVF_RXD_ERROR_SHIFT + 4)) #define AVF_TXD_CMD(x) (1 << (x + 4)) #define AVF_TXD_CMD_EXT(x, val) ((u64)val << (x + 4)) #define AVF_TXD_CMD_EOP AVF_TXD_CMD(0) #define AVF_TXD_CMD_RS AVF_TXD_CMD(1) #define AVF_TXD_CMD_RSV AVF_TXD_CMD(2) #define AVF_TXD_CMD_IIPT_NONE AVF_TXD_CMD_EXT(5, 0) #define AVF_TXD_CMD_IIPT_IPV6 AVF_TXD_CMD_EXT(5, 1) #define AVF_TXD_CMD_IIPT_IPV4_NO_CSUM AVF_TXD_CMD_EXT(5, 2) #define AVF_TXD_CMD_IIPT_IPV4 AVF_TXD_CMD_EXT(5, 3) #define AVF_TXD_CMD_L4T_UNKNOWN AVF_TXD_CMD_EXT(8, 0) #define AVF_TXD_CMD_L4T_TCP AVF_TXD_CMD_EXT(8, 1) #define AVF_TXD_CMD_L4T_SCTP AVF_TXD_CMD_EXT(8, 2) #define AVF_TXD_CMD_L4T_UDP AVF_TXD_CMD_EXT(8, 3) #define AVF_TXD_OFFSET(x,factor,val) (((u64)val/(u64)factor) << (16 + x)) #define AVF_TXD_OFFSET_MACLEN(val) AVF_TXD_OFFSET( 0, 2, val) #define AVF_TXD_OFFSET_IPLEN(val) AVF_TXD_OFFSET( 7, 4, val) #define AVF_TXD_OFFSET_L4LEN(val) AVF_TXD_OFFSET(14, 4, val) #define AVF_TXD_DTYP_CTX 0x1ULL #define AVF_TXD_CTX_CMD_TSO AVF_TXD_CMD(0) #define AVF_TXD_CTX_SEG(val,x) (((u64)val) << (30 + x)) #define AVF_TXD_CTX_SEG_TLEN(val) AVF_TXD_CTX_SEG(val,0) #define AVF_TXD_CTX_SEG_MSS(val) AVF_TXD_CTX_SEG(val,20) extern vlib_log_class_registration_t avf_log; extern vlib_log_class_registration_t avf_stats_log; #define avf_log_err(dev, f, ...) \ vlib_log (VLIB_LOG_LEVEL_ERR, avf_log.class, "%U: " f, \ format_vlib_pci_addr, &dev->pci_addr, \ ## __VA_ARGS__) #define avf_log_warn(dev, f, ...) \ vlib_log (VLIB_LOG_LEVEL_WARNING, avf_log.class, "%U: " f, \ format_vlib_pci_addr, &dev->pci_addr, \ ## __VA_ARGS__) #define avf_log_debug(dev, f, ...) \ vlib_log (VLIB_LOG_LEVEL_DEBUG, avf_log.class, "%U: " f, \ format_vlib_pci_addr, &dev->pci_addr, \ ## __VA_ARGS__) #define avf_stats_log_debug(dev, f, ...) \ vlib_log (VLIB_LOG_LEVEL_DEBUG, avf_stats_log.class, "%U: " f, \ format_vlib_pci_addr, &dev->pci_addr, ##__VA_ARGS__) #define foreach_avf_device_flags \ _ (0, INITIALIZED, "initialized") \ _ (1, ERROR, "error") \ _ (2, ADMIN_UP, "admin-up") \ _ (3, VA_DMA, "vaddr-dma") \ _ (4, LINK_UP, "link-up") \ _ (6, ELOG, "elog") \ _ (7, PROMISC, "promisc") \ _ (8, RX_INT, "rx-interrupts") \ _ (9, RX_FLOW_OFFLOAD, "rx-flow-offload") enum { #define _(a, b, c) AVF_DEVICE_F_##b = (1 << a), foreach_avf_device_flags #undef _ }; typedef volatile struct { union { struct { u64 mirr:13; u64 rsv1:3; u64 l2tag1:16; u64 filter_status:32; u64 status:19; u64 error:8; u64 rsv2:3; u64 ptype:8; u64 length:26; u64 rsv3 : 64; u32 flex_lo; u32 fdid_flex_hi; }; u64 qword[4]; #ifdef CLIB_HAVE_VEC256 u64x4 as_u64x4; #endif }; } avf_rx_desc_t; STATIC_ASSERT_SIZEOF (avf_rx_desc_t, 32); typedef struct { union { u64 qword[2]; #ifdef CLIB_HAVE_VEC128 u64x2 as_u64x2; #endif }; } avf_tx_desc_t; STATIC_ASSERT_SIZEOF (avf_tx_desc_t, 16); typedef struct { CLIB_CACHE_LINE_ALIGN_MARK (cacheline0); volatile u32 *qrx_tail; u16 next; u16 size; avf_rx_desc_t *descs; u32 *bufs; u16 n_enqueued; u8 int_mode; u8 buffer_pool_index; u32 queue_index; } avf_rxq_t; typedef struct { CLIB_CACHE_LINE_ALIGN_MARK (cacheline0); volatile u32 *qtx_tail; u16 next; u16 size; u32 *ph_bufs; clib_spinlock_t lock; avf_tx_desc_t *descs; u32 *bufs; u16 n_enqueued; u16 *rs_slots; avf_tx_desc_t *tmp_descs; u32 *tmp_bufs; u32 queue_index; } avf_txq_t; typedef struct { u32 flow_index; u32 mark; u8 flow_type_flag; struct avf_fdir_conf *rcfg; struct virtchnl_rss_cfg *rss_cfg; } avf_flow_entry_t; typedef struct { u32 flow_id; u16 next_index; i16 buffer_advance; } avf_flow_lookup_entry_t; typedef struct { CLIB_CACHE_LINE_ALIGN_MARK (cacheline0); u32 flags; u32 per_interface_next_index; u32 dev_instance; u32 sw_if_index; u32 hw_if_index; vlib_pci_dev_handle_t pci_dev_handle; u32 numa_node; void *bar0; u8 *name; /* queues */ avf_rxq_t *rxqs; avf_txq_t *txqs; u16 n_tx_queues; u16 n_rx_queues; /* Admin queues */ avf_aq_desc_t *atq; avf_aq_desc_t *arq; void *atq_bufs; void *arq_bufs; u64 atq_bufs_pa; u64 arq_bufs_pa; u16 atq_next_slot; u16 arq_next_slot; virtchnl_pf_event_t *events; u16 vsi_id; u32 cap_flags; u8 hwaddr[6]; u16 num_queue_pairs; u16 max_vectors; u16 n_rx_irqs; u16 max_mtu; u32 rss_key_size; u32 rss_lut_size; virtchnl_link_speed_t link_speed; vlib_pci_addr_t pci_addr; /* flow */ avf_flow_entry_t *flow_entries; /* pool */ avf_flow_lookup_entry_t *flow_lookup_entries; /* pool */ /* stats */ virtchnl_eth_stats_t eth_stats; virtchnl_eth_stats_t last_cleared_eth_stats; /* error */ clib_error_t *error; } avf_device_t; #define AVF_RX_VECTOR_SZ VLIB_FRAME_SIZE typedef enum { AVF_PROCESS_EVENT_START = 1, AVF_PROCESS_EVENT_DELETE_IF = 2, AVF_PROCESS_EVENT_AQ_INT = 3, AVF_PROCESS_EVENT_REQ = 4, } avf_process_event_t; typedef enum { AVF_PROCESS_REQ_ADD_DEL_ETH_ADDR = 1, AVF_PROCESS_REQ_CONFIG_PROMISC_MDDE = 2, AVF_PROCESS_REQ_PROGRAM_FLOW = 3, } avf_process_req_type_t; typedef struct { avf_process_req_type_t type; u32 dev_instance; u32 calling_process_index; u8 eth_addr[6]; int is_add, is_enable; enum virthnl_adv_ops vc_op; /* below parameters are used for 'program flow' event */ u8 *rule; u32 rule_len; u8 *program_status; u32 status_len; clib_error_t *error; } avf_process_req_t; typedef struct { u64 qw1s[AVF_RX_MAX_DESC_IN_CHAIN - 1]; u32 buffers[AVF_RX_MAX_DESC_IN_CHAIN - 1]; } avf_rx_tail_t; typedef struct { CLIB_CACHE_LINE_ALIGN_MARK (cacheline0); vlib_buffer_t *bufs[AVF_RX_VECTOR_SZ]; u16 next[AVF_RX_VECTOR_SZ]; u64 qw1s[AVF_RX_VECTOR_SZ]; u32 flow_ids[AVF_RX_VECTOR_SZ]; avf_rx_tail_t tails[AVF_RX_VECTOR_SZ]; vlib_buffer_t buffer_template; } avf_per_thread_data_t; typedef struct { u16 msg_id_base; avf_device_t **devices; avf_per_thread_data_t *per_thread_data; } avf_main_t; extern avf_main_t avf_main; typedef struct { vlib_pci_addr_t addr; u8 *name; int enable_elog; u16 rxq_num; u16 txq_num; u16 rxq_size; u16 txq_size; /* return */ int rv; u32 sw_if_index; clib_error_t *error; } avf_create_if_args_t; void avf_create_if (vlib_main_t * vm, avf_create_if_args_t * args); extern vlib_node_registration_t avf_input_node; extern vlib_node_registration_t avf_process_node; extern vnet_device_class_t avf_device_class; clib_error_t *avf_program_flow (u32 dev_instance, int is_add, enum virthnl_adv_ops vc_op, u8 *rule, u32 rule_len, u8 *program_status, u32 status_len); /* format.c */ format_function_t format_avf_device; format_function_t format_avf_device_name; format_function_t format_avf_input_trace; format_function_t format_avf_vf_cap_flags; format_function_t format_avf_vlan_supported_caps; format_function_t format_avf_vlan_caps; format_function_t format_avf_vlan_support; format_function_t format_avf_eth_stats; vnet_flow_dev_ops_function_t avf_flow_ops_fn; static_always_inline avf_device_t * avf_get_device (u32 dev_instance) { return pool_elt_at_index (avf_main.devices, dev_instance)[0]; } /* elog.c */ void avf_elog_init (); void avf_elog_reg (avf_device_t *ad, u32 addr, u32 val, int is_read); void avf_elog_aq_enq_req (avf_device_t *ad, avf_aq_desc_t *d); void avf_elog_aq_enq_resp (avf_device_t *ad, avf_aq_desc_t *d); void avf_elog_arq_desc (avf_device_t *ad, avf_aq_desc_t *d); static inline u32 avf_get_u32 (void *start, int offset) { return *(u32 *) (((u8 *) start) + offset); } static inline u64 avf_get_u64 (void *start, int offset) { return *(u64 *) (((u8 *) start) + offset); } static inline u32 avf_get_u32_bits (void *start, int offset, int first, int last) { u32 value = avf_get_u32 (start, offset); if ((last == 0) && (first == 31)) return value; value >>= last; value &= (1 << (first - last + 1)) - 1; return value; } static inline u64 avf_get_u64_bits (void *start, int offset, int first, int last) { u64 value = avf_get_u64 (start, offset); if ((last == 0) && (first == 63)) return value; value >>= last; value &= (1 << (first - last + 1)) - 1; return value; } static inline void avf_set_u32 (void *start, int offset, u32 value) { (*(u32 *) (((u8 *) start) + offset)) = value; } static inline void avf_reg_write (avf_device_t * ad, u32 addr, u32 val) { if (ad->flags & AVF_DEVICE_F_ELOG) avf_elog_reg (ad, addr, val, 0); __atomic_store_n ((u32 *) ((u8 *) ad->bar0 + addr), val, __ATOMIC_RELEASE); } static inline u32 avf_reg_read (avf_device_t * ad, u32 addr) { u32 val = *(volatile u32 *) (ad->bar0 + addr); if (ad->flags & AVF_DEVICE_F_ELOG) avf_elog_reg (ad, addr, val, 1); return val; } static inline void avf_reg_flush (avf_device_t * ad) { avf_reg_read (ad, AVFGEN_RSTAT); asm volatile ("":::"memory"); } static inline void avf_tail_write (volatile u32 *addr, u32 val) { #ifdef __MOVDIRI__ _mm_sfence (); _directstoreu_u32 ((void *) addr, val); #else clib_atomic_store_rel_n (addr, val); #endif } static_always_inline int avf_rxd_is_not_eop (avf_rx_desc_t * d) { return (d->qword[1] & AVF_RXD_STATUS_EOP) == 0; } static_always_inline int avf_rxd_is_not_dd (avf_rx_desc_t * d) { return (d->qword[1] & AVF_RXD_STATUS_DD) == 0; } typedef struct { u16 qid; u16 next_index; u32 hw_if_index; u32 flow_id; u64 qw1s[AVF_RX_MAX_DESC_IN_CHAIN]; } avf_input_trace_t; #define foreach_avf_tx_func_error \ _(SEGMENT_SIZE_EXCEEDED, "segment size exceeded") \ _(NO_FREE_SLOTS, "no free tx slots") typedef enum { #define _(f,s) AVF_TX_ERROR_##f, foreach_avf_tx_func_error #undef _ AVF_TX_N_ERROR, } avf_tx_func_error_t; #endif /* AVF_H */ /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */