217 lines
6.6 KiB
C
217 lines
6.6 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright(c) 2017 Intel Corporation
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*/
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#ifndef _AVF_ETHDEV_H_
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#define _AVF_ETHDEV_H_
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#include <rte_kvargs.h>
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#define AVF_AQ_LEN 32
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#define AVF_AQ_BUF_SZ 4096
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#define AVF_RESET_WAIT_CNT 50
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#define AVF_BUF_SIZE_MIN 1024
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#define AVF_FRAME_SIZE_MAX 9728
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#define AVF_QUEUE_BASE_ADDR_UNIT 128
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#define AVF_MAX_NUM_QUEUES 16
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#define AVF_NUM_MACADDR_MAX 64
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#define AVF_DEFAULT_RX_PTHRESH 8
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#define AVF_DEFAULT_RX_HTHRESH 8
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#define AVF_DEFAULT_RX_WTHRESH 0
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#define AVF_DEFAULT_RX_FREE_THRESH 32
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#define AVF_DEFAULT_TX_PTHRESH 32
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#define AVF_DEFAULT_TX_HTHRESH 0
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#define AVF_DEFAULT_TX_WTHRESH 0
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#define AVF_DEFAULT_TX_FREE_THRESH 32
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#define AVF_DEFAULT_TX_RS_THRESH 32
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#define AVF_BASIC_OFFLOAD_CAPS ( \
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VF_BASE_MODE_OFFLOADS | \
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VIRTCHNL_VF_OFFLOAD_WB_ON_ITR | \
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VIRTCHNL_VF_OFFLOAD_RX_POLLING)
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#define AVF_RSS_OFFLOAD_ALL ( \
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ETH_RSS_FRAG_IPV4 | \
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ETH_RSS_NONFRAG_IPV4_TCP | \
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ETH_RSS_NONFRAG_IPV4_UDP | \
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ETH_RSS_NONFRAG_IPV4_SCTP | \
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ETH_RSS_NONFRAG_IPV4_OTHER)
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#define AVF_MISC_VEC_ID RTE_INTR_VEC_ZERO_OFFSET
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#define AVF_RX_VEC_START RTE_INTR_VEC_RXTX_OFFSET
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/* Default queue interrupt throttling time in microseconds */
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#define AVF_ITR_INDEX_DEFAULT 0
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#define AVF_QUEUE_ITR_INTERVAL_DEFAULT 32 /* 32 us */
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#define AVF_QUEUE_ITR_INTERVAL_MAX 8160 /* 8160 us */
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/* The overhead from MTU to max frame size.
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* Considering QinQ packet, the VLAN tag needs to be counted twice.
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*/
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#define AVF_VLAN_TAG_SIZE 4
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#define AVF_ETH_OVERHEAD \
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(ETHER_HDR_LEN + ETHER_CRC_LEN + AVF_VLAN_TAG_SIZE * 2)
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struct avf_adapter;
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struct avf_rx_queue;
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struct avf_tx_queue;
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/* Structure that defines a VSI, associated with a adapter. */
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struct avf_vsi {
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struct avf_adapter *adapter; /* Backreference to associated adapter */
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uint16_t vsi_id;
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uint16_t nb_qps; /* Number of queue pairs VSI can occupy */
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uint16_t nb_used_qps; /* Number of queue pairs VSI uses */
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uint16_t max_macaddrs; /* Maximum number of MAC addresses */
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uint16_t base_vector;
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uint16_t msix_intr; /* The MSIX interrupt binds to VSI */
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};
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/* TODO: is that correct to assume the max number to be 16 ?*/
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#define AVF_MAX_MSIX_VECTORS 16
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/* Structure to store private data specific for VF instance. */
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struct avf_info {
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uint16_t num_queue_pairs;
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uint16_t max_pkt_len; /* Maximum packet length */
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uint16_t mac_num; /* Number of MAC addresses */
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bool promisc_unicast_enabled;
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bool promisc_multicast_enabled;
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struct virtchnl_version_info virtchnl_version;
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struct virtchnl_vf_resource *vf_res; /* VF resource */
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struct virtchnl_vsi_resource *vsi_res; /* LAN VSI */
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volatile enum virtchnl_ops pend_cmd; /* pending command not finished */
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uint32_t cmd_retval; /* return value of the cmd response from PF */
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uint8_t *aq_resp; /* buffer to store the adminq response from PF */
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/* Event from pf */
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bool dev_closed;
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bool link_up;
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enum virtchnl_link_speed link_speed;
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struct avf_vsi vsi;
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bool vf_reset;
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uint64_t flags;
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uint8_t *rss_lut;
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uint8_t *rss_key;
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uint16_t nb_msix; /* number of MSI-X interrupts on Rx */
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uint16_t msix_base; /* msix vector base from */
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/* queue bitmask for each vector */
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uint16_t rxq_map[AVF_MAX_MSIX_VECTORS];
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};
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#define AVF_MAX_PKT_TYPE 256
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/* Structure to store private data for each VF instance. */
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struct avf_adapter {
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struct avf_hw hw;
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struct rte_eth_dev *eth_dev;
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struct avf_info vf;
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bool rx_bulk_alloc_allowed;
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/* For vector PMD */
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bool rx_vec_allowed;
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bool tx_vec_allowed;
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};
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/* AVF_DEV_PRIVATE_TO */
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#define AVF_DEV_PRIVATE_TO_ADAPTER(adapter) \
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((struct avf_adapter *)adapter)
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#define AVF_DEV_PRIVATE_TO_VF(adapter) \
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(&((struct avf_adapter *)adapter)->vf)
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#define AVF_DEV_PRIVATE_TO_HW(adapter) \
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(&((struct avf_adapter *)adapter)->hw)
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/* AVF_VSI_TO */
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#define AVF_VSI_TO_HW(vsi) \
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(&(((struct avf_vsi *)vsi)->adapter->hw))
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#define AVF_VSI_TO_VF(vsi) \
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(&(((struct avf_vsi *)vsi)->adapter->vf))
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#define AVF_VSI_TO_ETH_DEV(vsi) \
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(((struct avf_vsi *)vsi)->adapter->eth_dev)
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static inline void
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avf_init_adminq_parameter(struct avf_hw *hw)
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{
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hw->aq.num_arq_entries = AVF_AQ_LEN;
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hw->aq.num_asq_entries = AVF_AQ_LEN;
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hw->aq.arq_buf_size = AVF_AQ_BUF_SZ;
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hw->aq.asq_buf_size = AVF_AQ_BUF_SZ;
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}
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static inline uint16_t
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avf_calc_itr_interval(int16_t interval)
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{
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if (interval < 0 || interval > AVF_QUEUE_ITR_INTERVAL_MAX)
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interval = AVF_QUEUE_ITR_INTERVAL_DEFAULT;
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/* Convert to hardware count, as writing each 1 represents 2 us */
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return interval / 2;
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}
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/* structure used for sending and checking response of virtchnl ops */
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struct avf_cmd_info {
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enum virtchnl_ops ops;
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uint8_t *in_args; /* buffer for sending */
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uint32_t in_args_size; /* buffer size for sending */
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uint8_t *out_buffer; /* buffer for response */
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uint32_t out_size; /* buffer size for response */
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};
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/* clear current command. Only call in case execute
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* _atomic_set_cmd successfully.
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*/
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static inline void
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_clear_cmd(struct avf_info *vf)
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{
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rte_wmb();
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vf->pend_cmd = VIRTCHNL_OP_UNKNOWN;
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vf->cmd_retval = VIRTCHNL_STATUS_SUCCESS;
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}
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/* Check there is pending cmd in execution. If none, set new command. */
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static inline int
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_atomic_set_cmd(struct avf_info *vf, enum virtchnl_ops ops)
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{
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int ret = rte_atomic32_cmpset(&vf->pend_cmd, VIRTCHNL_OP_UNKNOWN, ops);
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if (!ret)
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PMD_DRV_LOG(ERR, "There is incomplete cmd %d", vf->pend_cmd);
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return !ret;
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}
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int avf_check_api_version(struct avf_adapter *adapter);
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int avf_get_vf_resource(struct avf_adapter *adapter);
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void avf_handle_virtchnl_msg(struct rte_eth_dev *dev);
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int avf_enable_vlan_strip(struct avf_adapter *adapter);
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int avf_disable_vlan_strip(struct avf_adapter *adapter);
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int avf_switch_queue(struct avf_adapter *adapter, uint16_t qid,
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bool rx, bool on);
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int avf_enable_queues(struct avf_adapter *adapter);
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int avf_disable_queues(struct avf_adapter *adapter);
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int avf_configure_rss_lut(struct avf_adapter *adapter);
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int avf_configure_rss_key(struct avf_adapter *adapter);
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int avf_configure_queues(struct avf_adapter *adapter);
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int avf_config_irq_map(struct avf_adapter *adapter);
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void avf_add_del_all_mac_addr(struct avf_adapter *adapter, bool add);
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int avf_dev_link_update(struct rte_eth_dev *dev,
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__rte_unused int wait_to_complete);
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int avf_query_stats(struct avf_adapter *adapter,
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struct virtchnl_eth_stats **pstats);
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int avf_config_promisc(struct avf_adapter *adapter, bool enable_unicast,
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bool enable_multicast);
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int avf_add_del_eth_addr(struct avf_adapter *adapter,
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struct ether_addr *addr, bool add);
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int avf_add_del_vlan(struct avf_adapter *adapter, uint16_t vlanid, bool add);
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#endif /* _AVF_ETHDEV_H_ */
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