/* * Copyright 2008-2014 Cisco Systems, Inc. All rights reserved. * Copyright 2007 Nuova Systems, Inc. All rights reserved. * * Copyright (c) 2014, Cisco Systems, Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. * */ #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 #include #define DRV_NAME "enic_pmd" #define DRV_DESCRIPTION "Cisco VIC Ethernet NIC Poll-mode Driver" #define DRV_VERSION "1.0.0.6" #define DRV_COPYRIGHT "Copyright 2008-2015 Cisco Systems, Inc" #define ENIC_WQ_MAX 8 /* With Rx scatter support, we use two RQs on VIC per RQ used by app. Both * RQs use the same CQ. */ #define ENIC_RQ_MAX 16 #define ENIC_CQ_MAX (ENIC_WQ_MAX + (ENIC_RQ_MAX / 2)) #define ENIC_INTR_MAX (ENIC_CQ_MAX + 2) #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))) #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 */ #define ENICPMD_FDIR_MAX 64 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]; }; struct enic_soft_stats { rte_atomic64_t rx_nombuf; rte_atomic64_t rx_packet_errors; }; struct enic_memzone_entry { const struct rte_memzone *rz; LIST_ENTRY(enic_memzone_entry) entries; }; /* 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; unsigned int port_id; 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; unsigned int flags; unsigned int priv_flags; /* work queue */ struct vnic_wq wq[ENIC_WQ_MAX]; unsigned int wq_count; /* receive queue */ struct vnic_rq rq[ENIC_RQ_MAX]; unsigned int rq_count; /* completion queue */ struct vnic_cq cq[ENIC_CQ_MAX]; unsigned int cq_count; /* interrupt resource */ struct vnic_intr intr; unsigned int intr_count; /* 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; }; static inline unsigned int enic_sop_rq(unsigned int rq) { return rq * 2; } static inline unsigned int enic_data_rq(unsigned int rq) { return rq * 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 unsigned int enic_msix_err_intr(__rte_unused struct enic *enic) { return 0; } 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; } extern void enic_fdir_stats_get(struct enic *enic, struct rte_eth_fdir_stats *stats); extern int enic_fdir_add_fltr(struct enic *enic, struct rte_eth_fdir_filter *params); extern int enic_fdir_del_fltr(struct enic *enic, struct rte_eth_fdir_filter *params); extern void enic_free_wq(void *txq); extern int enic_alloc_intr_resources(struct enic *enic); extern int enic_setup_finish(struct enic *enic); extern int enic_alloc_wq(struct enic *enic, uint16_t queue_idx, unsigned int socket_id, uint16_t nb_desc); extern void enic_start_wq(struct enic *enic, uint16_t queue_idx); extern int enic_stop_wq(struct enic *enic, uint16_t queue_idx); extern void enic_start_rq(struct enic *enic, uint16_t queue_idx); extern int enic_stop_rq(struct enic *enic, uint16_t queue_idx); extern void enic_free_rq(void *rxq); extern int enic_alloc_rq(struct enic *enic, uint16_t queue_idx, unsigned int socket_id, struct rte_mempool *mp, uint16_t nb_desc); extern int enic_set_rss_nic_cfg(struct enic *enic); extern int enic_set_vnic_res(struct enic *enic); extern void enic_set_hdr_split_size(struct enic *enic, u16 split_hdr_size); extern int enic_enable(struct enic *enic); extern int enic_disable(struct enic *enic); extern void enic_remove(struct enic *enic); extern int enic_get_link_status(struct enic *enic); extern void enic_dev_stats_get(struct enic *enic, struct rte_eth_stats *r_stats); extern void enic_dev_stats_clear(struct enic *enic); extern void enic_add_packet_filter(struct enic *enic); extern void enic_set_mac_address(struct enic *enic, uint8_t *mac_addr); extern void enic_del_mac_address(struct enic *enic); extern unsigned int enic_cleanup_wq(struct enic *enic, struct vnic_wq *wq); extern 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); extern void enic_post_wq_index(struct vnic_wq *wq); extern int enic_probe(struct enic *enic); extern int enic_clsf_init(struct enic *enic); extern 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_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts); int enic_set_mtu(struct enic *enic, uint16_t new_mtu); #endif /* _ENIC_H_ */