1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright 2008-2017 Cisco Systems, Inc. All rights reserved.
3 * Copyright 2007 Nuova Systems, Inc. All rights reserved.
14 #include "vnic_intr.h"
15 #include "vnic_stats.h"
19 #include "cq_enet_desc.h"
21 #include <sys/queue.h>
22 #include <rte_spinlock.h>
24 #define DRV_NAME "enic_pmd"
25 #define DRV_DESCRIPTION "Cisco VIC Ethernet NIC Poll-mode Driver"
26 #define DRV_COPYRIGHT "Copyright 2008-2015 Cisco Systems, Inc"
28 #define VLAN_ETH_HLEN 18
30 #define ENICPMD_SETTING(enic, f) ((enic->config.flags & VENETF_##f) ? 1 : 0)
32 #define ENICPMD_BDF_LENGTH 13 /* 0000:00:00.0'\0' */
33 #define ENIC_CALC_IP_CKSUM 1
34 #define ENIC_CALC_TCP_UDP_CKSUM 2
35 #define ENIC_MAX_MTU 9000
36 #define ENIC_PAGE_SIZE 4096
37 #define PAGE_ROUND_UP(x) \
38 ((((unsigned long)(x)) + ENIC_PAGE_SIZE-1) & (~(ENIC_PAGE_SIZE-1)))
40 #define ENICPMD_VFIO_PATH "/dev/vfio/vfio"
41 /*#define ENIC_DESC_COUNT_MAKE_ODD (x) do{if ((~(x)) & 1) { (x)--; } }while(0)*/
43 #define PCI_DEVICE_ID_CISCO_VIC_ENET 0x0043 /* ethernet vnic */
44 #define PCI_DEVICE_ID_CISCO_VIC_ENET_VF 0x0071 /* enet SRIOV VF */
45 /* enet SRIOV Standalone vNic VF */
46 #define PCI_DEVICE_ID_CISCO_VIC_ENET_SN 0x02B7
48 /* Special Filter id for non-specific packet flagging. Don't change value */
49 #define ENIC_MAGIC_FILTER_ID 0xffff
51 #define ENICPMD_FDIR_MAX 64
53 /* HW default VXLAN port */
54 #define ENIC_DEFAULT_VXLAN_PORT 4789
57 * Interrupt 0: LSC and errors
58 * Interrupt 1: rx queue 0
59 * Interrupt 2: rx queue 1
62 #define ENICPMD_LSC_INTR_OFFSET 0
63 #define ENICPMD_RXQ_INTR_OFFSET 1
65 struct enic_fdir_node {
66 struct rte_eth_fdir_filter filter;
72 struct rte_eth_fdir_stats stats;
73 struct rte_hash *hash;
74 struct enic_fdir_node *nodes[ENICPMD_FDIR_MAX];
77 void (*copy_fltr_fn)(struct filter_v2 *filt,
78 const struct rte_eth_fdir_input *input,
79 const struct rte_eth_fdir_masks *masks);
82 struct enic_soft_stats {
83 rte_atomic64_t rx_nombuf;
84 rte_atomic64_t rx_packet_errors;
85 rte_atomic64_t tx_oversized;
88 struct enic_memzone_entry {
89 const struct rte_memzone *rz;
90 LIST_ENTRY(enic_memzone_entry) entries;
94 LIST_ENTRY(rte_flow) next;
96 struct filter_v2 enic_filter;
99 /* Per-instance private data structure */
102 struct rte_pci_device *pdev;
103 struct vnic_enet_config config;
104 struct vnic_dev_bar bar0;
105 struct vnic_dev *vdev;
108 * mbuf_initializer contains 64 bits of mbuf rearm_data, used by
109 * the avx2 handler at this time.
111 uint64_t mbuf_initializer;
112 unsigned int port_id;
113 bool overlay_offload;
114 struct rte_eth_dev *rte_dev;
115 struct rte_eth_dev_data *dev_data;
116 struct enic_fdir fdir;
117 char bdf_name[ENICPMD_BDF_LENGTH];
122 uint8_t mac_addr[ETH_ALEN];
123 pthread_t err_intr_thread;
131 u32 flow_filter_mode;
132 u8 filter_actions; /* HW supported actions */
134 bool disable_overlay; /* devargs disable_overlay=1 */
135 uint8_t enable_avx2_rx; /* devargs enable-avx2-rx=1 */
136 bool nic_cfg_chk; /* NIC_CFG_CHK available */
137 bool udp_rss_weak; /* Bodega style UDP RSS */
138 uint8_t ig_vlan_rewrite_mode; /* devargs ig-vlan-rewrite */
139 uint16_t vxlan_port; /* current vxlan port pushed to NIC */
140 int use_simple_tx_handler;
143 unsigned int priv_flags;
145 /* work queue (len = conf_wq_count) */
147 unsigned int wq_count; /* equals eth_dev nb_tx_queues */
149 /* receive queue (len = conf_rq_count) */
151 unsigned int rq_count; /* equals eth_dev nb_rx_queues */
153 /* completion queue (len = conf_cq_count) */
155 unsigned int cq_count; /* equals rq_count + wq_count */
157 /* interrupt vectors (len = conf_intr_count) */
158 struct vnic_intr *intr;
159 unsigned int intr_count; /* equals enabled interrupts (lsc + rxqs) */
161 /* software counters */
162 struct enic_soft_stats soft_stats;
164 /* configured resources on vic */
165 unsigned int conf_rq_count;
166 unsigned int conf_wq_count;
167 unsigned int conf_cq_count;
168 unsigned int conf_intr_count;
170 /* linked list storing memory allocations */
171 LIST_HEAD(enic_memzone_list, enic_memzone_entry) memzone_list;
172 rte_spinlock_t memzone_list_lock;
173 rte_spinlock_t mtu_lock;
175 LIST_HEAD(enic_flows, rte_flow) flows;
179 uint8_t hash_key_size;
180 uint64_t flow_type_rss_offloads; /* 0 indicates RSS not supported */
182 * Keep a copy of current RSS config for queries, as we cannot retrieve
185 uint8_t rss_hash_type; /* NIC_CFG_RSS_HASH_TYPE flags */
187 uint64_t rss_hf; /* ETH_RSS flags */
188 union vnic_rss_key rss_key;
189 union vnic_rss_cpu rss_cpu;
191 uint64_t rx_offload_capa; /* DEV_RX_OFFLOAD flags */
192 uint64_t tx_offload_capa; /* DEV_TX_OFFLOAD flags */
193 uint64_t tx_queue_offload_capa; /* DEV_TX_OFFLOAD flags */
194 uint64_t tx_offload_mask; /* PKT_TX flags accepted */
196 /* Multicast MAC addresses added to the NIC */
198 struct rte_ether_addr mc_addrs[ENIC_MULTICAST_PERFECT_FILTERS];
201 /* Compute ethdev's max packet size from MTU */
202 static inline uint32_t enic_mtu_to_max_rx_pktlen(uint32_t mtu)
204 /* ethdev max size includes eth whereas NIC MTU does not */
205 return mtu + RTE_ETHER_HDR_LEN;
208 /* Get the CQ index from a Start of Packet(SOP) RQ index */
209 static inline unsigned int enic_sop_rq_idx_to_cq_idx(unsigned int sop_idx)
214 /* Get the RTE RQ index from a Start of Packet(SOP) RQ index */
215 static inline unsigned int enic_sop_rq_idx_to_rte_idx(unsigned int sop_idx)
220 /* Get the Start of Packet(SOP) RQ index from a RTE RQ index */
221 static inline unsigned int enic_rte_rq_idx_to_sop_idx(unsigned int rte_idx)
226 /* Get the Data RQ index from a RTE RQ index */
227 static inline unsigned int enic_rte_rq_idx_to_data_idx(unsigned int rte_idx)
229 return rte_idx * 2 + 1;
232 static inline unsigned int enic_vnic_rq_count(struct enic *enic)
234 return enic->rq_count * 2;
237 static inline unsigned int enic_cq_rq(__rte_unused struct enic *enic, unsigned int rq)
239 /* Scatter rx uses two receive queues together with one
240 * completion queue, so the completion queue number is no
241 * longer the same as the rq number.
246 static inline unsigned int enic_cq_wq(struct enic *enic, unsigned int wq)
248 return enic->rq_count + wq;
251 static inline struct enic *pmd_priv(struct rte_eth_dev *eth_dev)
253 return eth_dev->data->dev_private;
256 static inline uint32_t
257 enic_ring_add(uint32_t n_descriptors, uint32_t i0, uint32_t i1)
259 uint32_t d = i0 + i1;
260 d -= (d >= n_descriptors) ? n_descriptors : 0;
264 static inline uint32_t
265 enic_ring_sub(uint32_t n_descriptors, uint32_t i0, uint32_t i1)
268 return (uint32_t)((d < 0) ? ((int32_t)n_descriptors + d) : d);
271 static inline uint32_t
272 enic_ring_incr(uint32_t n_descriptors, uint32_t idx)
275 if (unlikely(idx == n_descriptors))
280 void enic_fdir_stats_get(struct enic *enic,
281 struct rte_eth_fdir_stats *stats);
282 int enic_fdir_add_fltr(struct enic *enic,
283 struct rte_eth_fdir_filter *params);
284 int enic_fdir_del_fltr(struct enic *enic,
285 struct rte_eth_fdir_filter *params);
286 void enic_free_wq(void *txq);
287 int enic_alloc_intr_resources(struct enic *enic);
288 int enic_setup_finish(struct enic *enic);
289 int enic_alloc_wq(struct enic *enic, uint16_t queue_idx,
290 unsigned int socket_id, uint16_t nb_desc);
291 void enic_start_wq(struct enic *enic, uint16_t queue_idx);
292 int enic_stop_wq(struct enic *enic, uint16_t queue_idx);
293 void enic_start_rq(struct enic *enic, uint16_t queue_idx);
294 int enic_stop_rq(struct enic *enic, uint16_t queue_idx);
295 void enic_free_rq(void *rxq);
296 int enic_alloc_rq(struct enic *enic, uint16_t queue_idx,
297 unsigned int socket_id, struct rte_mempool *mp,
298 uint16_t nb_desc, uint16_t free_thresh);
299 int enic_set_vnic_res(struct enic *enic);
300 int enic_init_rss_nic_cfg(struct enic *enic);
301 int enic_set_rss_conf(struct enic *enic,
302 struct rte_eth_rss_conf *rss_conf);
303 int enic_set_rss_reta(struct enic *enic, union vnic_rss_cpu *rss_cpu);
304 int enic_set_vlan_strip(struct enic *enic);
305 int enic_enable(struct enic *enic);
306 int enic_disable(struct enic *enic);
307 void enic_remove(struct enic *enic);
308 int enic_get_link_status(struct enic *enic);
309 int enic_dev_stats_get(struct enic *enic,
310 struct rte_eth_stats *r_stats);
311 int enic_dev_stats_clear(struct enic *enic);
312 int enic_add_packet_filter(struct enic *enic);
313 int enic_set_mac_address(struct enic *enic, uint8_t *mac_addr);
314 int enic_del_mac_address(struct enic *enic, int mac_index);
315 unsigned int enic_cleanup_wq(struct enic *enic, struct vnic_wq *wq);
316 void enic_send_pkt(struct enic *enic, struct vnic_wq *wq,
317 struct rte_mbuf *tx_pkt, unsigned short len,
318 uint8_t sop, uint8_t eop, uint8_t cq_entry,
319 uint16_t ol_flags, uint16_t vlan_tag);
321 void enic_post_wq_index(struct vnic_wq *wq);
322 int enic_probe(struct enic *enic);
323 int enic_clsf_init(struct enic *enic);
324 void enic_clsf_destroy(struct enic *enic);
325 uint16_t enic_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
327 uint16_t enic_noscatter_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
329 uint16_t enic_dummy_recv_pkts(void *rx_queue,
330 struct rte_mbuf **rx_pkts,
332 uint16_t enic_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
334 uint16_t enic_simple_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
336 uint16_t enic_prep_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
338 int enic_set_mtu(struct enic *enic, uint16_t new_mtu);
339 int enic_link_update(struct rte_eth_dev *eth_dev);
340 bool enic_use_vector_rx_handler(struct rte_eth_dev *eth_dev);
341 void enic_pick_rx_handler(struct rte_eth_dev *eth_dev);
342 void enic_pick_tx_handler(struct rte_eth_dev *eth_dev);
343 void enic_fdir_info(struct enic *enic);
344 void enic_fdir_info_get(struct enic *enic, struct rte_eth_fdir_info *stats);
345 extern const struct rte_flow_ops enic_flow_ops;
346 #endif /* _ENIC_H_ */