diff options
Diffstat (limited to 'src/seastar/dpdk/drivers/net/enic/enic.h')
| -rw-r--r-- | src/seastar/dpdk/drivers/net/enic/enic.h | 346 |
1 files changed, 346 insertions, 0 deletions
diff --git a/src/seastar/dpdk/drivers/net/enic/enic.h b/src/seastar/dpdk/drivers/net/enic/enic.h new file mode 100644 index 000000000..9193fb038 --- /dev/null +++ b/src/seastar/dpdk/drivers/net/enic/enic.h @@ -0,0 +1,346 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright 2008-2017 Cisco Systems, Inc. All rights reserved. + * Copyright 2007 Nuova Systems, Inc. All rights reserved. + */ + +#ifndef _ENIC_H_ +#define _ENIC_H_ + +#include "vnic_enet.h" +#include "vnic_dev.h" +#include "vnic_wq.h" +#include "vnic_rq.h" +#include "vnic_cq.h" +#include "vnic_intr.h" +#include "vnic_stats.h" +#include "vnic_nic.h" +#include "vnic_rss.h" +#include "enic_res.h" +#include "cq_enet_desc.h" +#include <stdbool.h> +#include <sys/queue.h> +#include <rte_spinlock.h> + +#define DRV_NAME "enic_pmd" +#define DRV_DESCRIPTION "Cisco VIC Ethernet NIC Poll-mode Driver" +#define DRV_COPYRIGHT "Copyright 2008-2015 Cisco Systems, Inc" + +#define VLAN_ETH_HLEN 18 + +#define ENICPMD_SETTING(enic, f) ((enic->config.flags & VENETF_##f) ? 1 : 0) + +#define ENICPMD_BDF_LENGTH 13 /* 0000:00:00.0'\0' */ +#define ENIC_CALC_IP_CKSUM 1 +#define ENIC_CALC_TCP_UDP_CKSUM 2 +#define ENIC_MAX_MTU 9000 +#define ENIC_PAGE_SIZE 4096 +#define PAGE_ROUND_UP(x) \ + ((((unsigned long)(x)) + ENIC_PAGE_SIZE-1) & (~(ENIC_PAGE_SIZE-1))) + +/* must be >= VNIC_COUNTER_DMA_MIN_PERIOD */ +#define VNIC_FLOW_COUNTER_UPDATE_MSECS 500 + +#define ENICPMD_VFIO_PATH "/dev/vfio/vfio" +/*#define ENIC_DESC_COUNT_MAKE_ODD (x) do{if ((~(x)) & 1) { (x)--; } }while(0)*/ + +#define PCI_DEVICE_ID_CISCO_VIC_ENET 0x0043 /* ethernet vnic */ +#define PCI_DEVICE_ID_CISCO_VIC_ENET_VF 0x0071 /* enet SRIOV VF */ + +/* Special Filter id for non-specific packet flagging. Don't change value */ +#define ENIC_MAGIC_FILTER_ID 0xffff + +#define ENICPMD_FDIR_MAX 64 + +/* HW default VXLAN port */ +#define ENIC_DEFAULT_VXLAN_PORT 4789 + +/* + * Interrupt 0: LSC and errors + * Interrupt 1: rx queue 0 + * Interrupt 2: rx queue 1 + * ... + */ +#define ENICPMD_LSC_INTR_OFFSET 0 +#define ENICPMD_RXQ_INTR_OFFSET 1 + +struct enic_fdir_node { + struct rte_eth_fdir_filter filter; + u16 fltr_id; + u16 rq_index; +}; + +struct enic_fdir { + struct rte_eth_fdir_stats stats; + struct rte_hash *hash; + struct enic_fdir_node *nodes[ENICPMD_FDIR_MAX]; + u32 modes; + u32 types_mask; + void (*copy_fltr_fn)(struct filter_v2 *filt, + const struct rte_eth_fdir_input *input, + const struct rte_eth_fdir_masks *masks); +}; + +struct enic_soft_stats { + rte_atomic64_t rx_nombuf; + rte_atomic64_t rx_packet_errors; + rte_atomic64_t tx_oversized; +}; + +struct enic_memzone_entry { + const struct rte_memzone *rz; + LIST_ENTRY(enic_memzone_entry) entries; +}; + +struct rte_flow { + LIST_ENTRY(rte_flow) next; + u16 enic_filter_id; + struct filter_v2 enic_filter; + int counter_idx; /* NIC allocated counter index (-1 = invalid) */ +}; + +/* Per-instance private data structure */ +struct enic { + struct enic *next; + struct rte_pci_device *pdev; + struct vnic_enet_config config; + struct vnic_dev_bar bar0; + struct vnic_dev *vdev; + + /* + * mbuf_initializer contains 64 bits of mbuf rearm_data, used by + * the avx2 handler at this time. + */ + uint64_t mbuf_initializer; + unsigned int port_id; + bool overlay_offload; + struct rte_eth_dev *rte_dev; + struct enic_fdir fdir; + char bdf_name[ENICPMD_BDF_LENGTH]; + int dev_fd; + int iommu_group_fd; + int iommu_groupid; + int eventfd; + uint8_t mac_addr[ETH_ALEN]; + pthread_t err_intr_thread; + int promisc; + int allmulti; + u8 ig_vlan_strip_en; + int link_status; + u8 hw_ip_checksum; + u16 max_mtu; + u8 adv_filters; + u32 flow_filter_mode; + u8 filter_actions; /* HW supported actions */ + bool vxlan; + bool disable_overlay; /* devargs disable_overlay=1 */ + uint8_t enable_avx2_rx; /* devargs enable-avx2-rx=1 */ + bool nic_cfg_chk; /* NIC_CFG_CHK available */ + bool udp_rss_weak; /* Bodega style UDP RSS */ + uint8_t ig_vlan_rewrite_mode; /* devargs ig-vlan-rewrite */ + uint16_t vxlan_port; /* current vxlan port pushed to NIC */ + + unsigned int flags; + unsigned int priv_flags; + + /* work queue (len = conf_wq_count) */ + struct vnic_wq *wq; + unsigned int wq_count; /* equals eth_dev nb_tx_queues */ + + /* receive queue (len = conf_rq_count) */ + struct vnic_rq *rq; + unsigned int rq_count; /* equals eth_dev nb_rx_queues */ + + /* completion queue (len = conf_cq_count) */ + struct vnic_cq *cq; + unsigned int cq_count; /* equals rq_count + wq_count */ + + /* interrupt vectors (len = conf_intr_count) */ + struct vnic_intr *intr; + unsigned int intr_count; /* equals enabled interrupts (lsc + rxqs) */ + + /* software counters */ + struct enic_soft_stats soft_stats; + + /* configured resources on vic */ + unsigned int conf_rq_count; + unsigned int conf_wq_count; + unsigned int conf_cq_count; + unsigned int conf_intr_count; + + /* linked list storing memory allocations */ + LIST_HEAD(enic_memzone_list, enic_memzone_entry) memzone_list; + rte_spinlock_t memzone_list_lock; + rte_spinlock_t mtu_lock; + + LIST_HEAD(enic_flows, rte_flow) flows; + int max_flow_counter; + rte_spinlock_t flows_lock; + + /* RSS */ + uint16_t reta_size; + uint8_t hash_key_size; + uint64_t flow_type_rss_offloads; /* 0 indicates RSS not supported */ + /* + * Keep a copy of current RSS config for queries, as we cannot retrieve + * it from the NIC. + */ + uint8_t rss_hash_type; /* NIC_CFG_RSS_HASH_TYPE flags */ + uint8_t rss_enable; + uint64_t rss_hf; /* ETH_RSS flags */ + union vnic_rss_key rss_key; + union vnic_rss_cpu rss_cpu; + + uint64_t rx_offload_capa; /* DEV_RX_OFFLOAD flags */ + uint64_t tx_offload_capa; /* DEV_TX_OFFLOAD flags */ + uint64_t tx_queue_offload_capa; /* DEV_TX_OFFLOAD flags */ + uint64_t tx_offload_mask; /* PKT_TX flags accepted */ + + /* Multicast MAC addresses added to the NIC */ + uint32_t mc_count; + struct ether_addr mc_addrs[ENIC_MULTICAST_PERFECT_FILTERS]; +}; + +/* Compute ethdev's max packet size from MTU */ +static inline uint32_t enic_mtu_to_max_rx_pktlen(uint32_t mtu) +{ + /* ethdev max size includes eth whereas NIC MTU does not */ + return mtu + ETHER_HDR_LEN; +} + +/* Get the CQ index from a Start of Packet(SOP) RQ index */ +static inline unsigned int enic_sop_rq_idx_to_cq_idx(unsigned int sop_idx) +{ + return sop_idx / 2; +} + +/* Get the RTE RQ index from a Start of Packet(SOP) RQ index */ +static inline unsigned int enic_sop_rq_idx_to_rte_idx(unsigned int sop_idx) +{ + return sop_idx / 2; +} + +/* Get the Start of Packet(SOP) RQ index from a RTE RQ index */ +static inline unsigned int enic_rte_rq_idx_to_sop_idx(unsigned int rte_idx) +{ + return rte_idx * 2; +} + +/* Get the Data RQ index from a RTE RQ index */ +static inline unsigned int enic_rte_rq_idx_to_data_idx(unsigned int rte_idx) +{ + return rte_idx * 2 + 1; +} + +static inline unsigned int enic_vnic_rq_count(struct enic *enic) +{ + return enic->rq_count * 2; +} + +static inline unsigned int enic_cq_rq(__rte_unused struct enic *enic, unsigned int rq) +{ + /* Scatter rx uses two receive queues together with one + * completion queue, so the completion queue number is no + * longer the same as the rq number. + */ + return rq / 2; +} + +static inline unsigned int enic_cq_wq(struct enic *enic, unsigned int wq) +{ + return enic->rq_count + wq; +} + +static inline struct enic *pmd_priv(struct rte_eth_dev *eth_dev) +{ + return (struct enic *)eth_dev->data->dev_private; +} + +static inline uint32_t +enic_ring_add(uint32_t n_descriptors, uint32_t i0, uint32_t i1) +{ + uint32_t d = i0 + i1; + d -= (d >= n_descriptors) ? n_descriptors : 0; + return d; +} + +static inline uint32_t +enic_ring_sub(uint32_t n_descriptors, uint32_t i0, uint32_t i1) +{ + int32_t d = i1 - i0; + return (uint32_t)((d < 0) ? ((int32_t)n_descriptors + d) : d); +} + +static inline uint32_t +enic_ring_incr(uint32_t n_descriptors, uint32_t idx) +{ + idx++; + if (unlikely(idx == n_descriptors)) + idx = 0; + return idx; +} + +void enic_fdir_stats_get(struct enic *enic, + struct rte_eth_fdir_stats *stats); +int enic_fdir_add_fltr(struct enic *enic, + struct rte_eth_fdir_filter *params); +int enic_fdir_del_fltr(struct enic *enic, + struct rte_eth_fdir_filter *params); +void enic_free_wq(void *txq); +int enic_alloc_intr_resources(struct enic *enic); +int enic_setup_finish(struct enic *enic); +int enic_alloc_wq(struct enic *enic, uint16_t queue_idx, + unsigned int socket_id, uint16_t nb_desc); +void enic_start_wq(struct enic *enic, uint16_t queue_idx); +int enic_stop_wq(struct enic *enic, uint16_t queue_idx); +void enic_start_rq(struct enic *enic, uint16_t queue_idx); +int enic_stop_rq(struct enic *enic, uint16_t queue_idx); +void enic_free_rq(void *rxq); +int enic_alloc_rq(struct enic *enic, uint16_t queue_idx, + unsigned int socket_id, struct rte_mempool *mp, + uint16_t nb_desc, uint16_t free_thresh); +int enic_set_vnic_res(struct enic *enic); +int enic_init_rss_nic_cfg(struct enic *enic); +int enic_set_rss_conf(struct enic *enic, + struct rte_eth_rss_conf *rss_conf); +int enic_set_rss_reta(struct enic *enic, union vnic_rss_cpu *rss_cpu); +int enic_set_vlan_strip(struct enic *enic); +int enic_enable(struct enic *enic); +int enic_disable(struct enic *enic); +void enic_remove(struct enic *enic); +int enic_get_link_status(struct enic *enic); +int enic_dev_stats_get(struct enic *enic, + struct rte_eth_stats *r_stats); +void enic_dev_stats_clear(struct enic *enic); +void enic_add_packet_filter(struct enic *enic); +int enic_set_mac_address(struct enic *enic, uint8_t *mac_addr); +int enic_del_mac_address(struct enic *enic, int mac_index); +unsigned int enic_cleanup_wq(struct enic *enic, struct vnic_wq *wq); +void enic_send_pkt(struct enic *enic, struct vnic_wq *wq, + struct rte_mbuf *tx_pkt, unsigned short len, + uint8_t sop, uint8_t eop, uint8_t cq_entry, + uint16_t ol_flags, uint16_t vlan_tag); + +void enic_post_wq_index(struct vnic_wq *wq); +int enic_probe(struct enic *enic); +int enic_clsf_init(struct enic *enic); +void enic_clsf_destroy(struct enic *enic); +uint16_t enic_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, + uint16_t nb_pkts); +uint16_t enic_noscatter_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, + uint16_t nb_pkts); +uint16_t enic_dummy_recv_pkts(void *rx_queue, + struct rte_mbuf **rx_pkts, + uint16_t nb_pkts); +uint16_t enic_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, + uint16_t nb_pkts); +uint16_t enic_simple_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, + uint16_t nb_pkts); +uint16_t enic_prep_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, + uint16_t nb_pkts); +int enic_set_mtu(struct enic *enic, uint16_t new_mtu); +int enic_link_update(struct enic *enic); +bool enic_use_vector_rx_handler(struct enic *enic); +void enic_fdir_info(struct enic *enic); +void enic_fdir_info_get(struct enic *enic, struct rte_eth_fdir_info *stats); +extern const struct rte_flow_ops enic_flow_ops; +#endif /* _ENIC_H_ */ |