/* *------------------------------------------------------------------ * 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 <avf/virtchnl.h> #include <vlib/log.h> #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_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_EOP AVF_TXD_CMD(0) #define AVF_TXD_CMD_RS AVF_TXD_CMD(1) #define AVF_TXD_CMD_RSV AVF_TXD_CMD(2) #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") \ _(5, SHARED_TXQ_LOCK, "shared-txq-lock") \ _(6, ELOG, "elog") 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 qword[4]; #ifdef CLIB_HAVE_VEC256 u64x4 as_u64x4; #endif }; } avf_rx_desc_t; STATIC_ASSERT_SIZEOF (avf_rx_desc_t, 32); typedef volatile 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; } avf_rxq_t; typedef struct { CLIB_CACHE_LINE_ALIGN_MARK (cacheline0); volatile u32 *qtx_tail; u16 next; u16 size; clib_spinlock_t lock; avf_tx_desc_t *descs; u32 *bufs; u16 n_enqueued; u16 *rs_slots; } avf_txq_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 feature_bitmap; u8 hwaddr[6]; u16 num_queue_pairs; u16 max_vectors; u16 max_mtu; u32 rss_key_size; u32 rss_lut_size; virtchnl_link_speed_t link_speed; /* stats */ virtchnl_eth_stats_t 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_STOP = 2, AVF_PROCESS_EVENT_AQ_INT = 3, } avf_process_event_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]; u64 qw1s[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; vlib_log_class_t log_class; } 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 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); void avf_delete_if (vlib_main_t * vm, avf_device_t * ad); extern vlib_node_registration_t avf_input_node; extern vnet_device_class_t avf_device_class; /* format.c */ format_function_t format_avf_device; format_function_t format_avf_device_name; format_function_t format_avf_input_trace; 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) { *(volatile u32 *) ((u8 *) ad->bar0 + addr) = val; } static inline u32 avf_reg_read (avf_device_t * ad, u32 addr) { return *(volatile u32 *) (ad->bar0 + addr); } static inline void avf_reg_flush (avf_device_t * ad) { avf_reg_read (ad, AVFGEN_RSTAT); asm volatile ("":::"memory"); } 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 { u32 next_index; u32 hw_if_index; u64 qw1s[AVF_RX_MAX_DESC_IN_CHAIN]; } avf_input_trace_t; #define foreach_avf_tx_func_error \ _(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: */