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"
20 #include <sys/queue.h>
21 #include <rte_spinlock.h>
23 #define DRV_NAME "enic_pmd"
24 #define DRV_DESCRIPTION "Cisco VIC Ethernet NIC Poll-mode Driver"
25 #define DRV_COPYRIGHT "Copyright 2008-2015 Cisco Systems, Inc"
27 #define ENIC_MAX_MAC_ADDR 64
29 #define VLAN_ETH_HLEN 18
31 #define ENICPMD_SETTING(enic, f) ((enic->config.flags & VENETF_##f) ? 1 : 0)
33 #define ENICPMD_BDF_LENGTH 13 /* 0000:00:00.0'\0' */
34 #define ENIC_CALC_IP_CKSUM 1
35 #define ENIC_CALC_TCP_UDP_CKSUM 2
36 #define ENIC_MAX_MTU 9000
37 #define ENIC_PAGE_SIZE 4096
38 #define PAGE_ROUND_UP(x) \
39 ((((unsigned long)(x)) + ENIC_PAGE_SIZE-1) & (~(ENIC_PAGE_SIZE-1)))
41 #define ENICPMD_VFIO_PATH "/dev/vfio/vfio"
42 /*#define ENIC_DESC_COUNT_MAKE_ODD (x) do{if ((~(x)) & 1) { (x)--; } }while(0)*/
44 #define PCI_DEVICE_ID_CISCO_VIC_ENET 0x0043 /* ethernet vnic */
45 #define PCI_DEVICE_ID_CISCO_VIC_ENET_VF 0x0071 /* enet SRIOV VF */
47 /* Special Filter id for non-specific packet flagging. Don't change value */
48 #define ENIC_MAGIC_FILTER_ID 0xffff
50 #define ENICPMD_FDIR_MAX 64
52 struct enic_fdir_node {
53 struct rte_eth_fdir_filter filter;
59 struct rte_eth_fdir_stats stats;
60 struct rte_hash *hash;
61 struct enic_fdir_node *nodes[ENICPMD_FDIR_MAX];
64 void (*copy_fltr_fn)(struct filter_v2 *filt,
65 struct rte_eth_fdir_input *input,
66 struct rte_eth_fdir_masks *masks);
69 struct enic_soft_stats {
70 rte_atomic64_t rx_nombuf;
71 rte_atomic64_t rx_packet_errors;
72 rte_atomic64_t tx_oversized;
75 struct enic_memzone_entry {
76 const struct rte_memzone *rz;
77 LIST_ENTRY(enic_memzone_entry) entries;
81 LIST_ENTRY(rte_flow) next;
83 struct filter_v2 enic_filter;
86 /* Per-instance private data structure */
89 struct rte_pci_device *pdev;
90 struct vnic_enet_config config;
91 struct vnic_dev_bar bar0;
92 struct vnic_dev *vdev;
95 struct rte_eth_dev *rte_dev;
96 struct enic_fdir fdir;
97 char bdf_name[ENICPMD_BDF_LENGTH];
102 uint8_t mac_addr[ETH_ALEN];
103 pthread_t err_intr_thread;
111 u32 flow_filter_mode;
115 unsigned int priv_flags;
117 /* work queue (len = conf_wq_count) */
119 unsigned int wq_count; /* equals eth_dev nb_tx_queues */
121 /* receive queue (len = conf_rq_count) */
123 unsigned int rq_count; /* equals eth_dev nb_rx_queues */
125 /* completion queue (len = conf_cq_count) */
127 unsigned int cq_count; /* equals rq_count + wq_count */
129 /* interrupt resource */
130 struct vnic_intr intr;
131 unsigned int intr_count;
133 /* software counters */
134 struct enic_soft_stats soft_stats;
136 /* configured resources on vic */
137 unsigned int conf_rq_count;
138 unsigned int conf_wq_count;
139 unsigned int conf_cq_count;
140 unsigned int conf_intr_count;
142 /* linked list storing memory allocations */
143 LIST_HEAD(enic_memzone_list, enic_memzone_entry) memzone_list;
144 rte_spinlock_t memzone_list_lock;
145 rte_spinlock_t mtu_lock;
147 LIST_HEAD(enic_flows, rte_flow) flows;
148 rte_spinlock_t flows_lock;
152 uint8_t hash_key_size;
153 uint64_t flow_type_rss_offloads; /* 0 indicates RSS not supported */
155 * Keep a copy of current RSS config for queries, as we cannot retrieve
158 uint8_t rss_hash_type; /* NIC_CFG_RSS_HASH_TYPE flags */
160 uint64_t rss_hf; /* ETH_RSS flags */
161 union vnic_rss_key rss_key;
162 union vnic_rss_cpu rss_cpu;
165 /* Compute ethdev's max packet size from MTU */
166 static inline uint32_t enic_mtu_to_max_rx_pktlen(uint32_t mtu)
168 /* ethdev max size includes eth and crc whereas NIC MTU does not */
169 return mtu + ETHER_HDR_LEN + ETHER_CRC_LEN;
172 /* Get the CQ index from a Start of Packet(SOP) RQ index */
173 static inline unsigned int enic_sop_rq_idx_to_cq_idx(unsigned int sop_idx)
178 /* Get the RTE RQ index from a Start of Packet(SOP) RQ index */
179 static inline unsigned int enic_sop_rq_idx_to_rte_idx(unsigned int sop_idx)
184 /* Get the Start of Packet(SOP) RQ index from a RTE RQ index */
185 static inline unsigned int enic_rte_rq_idx_to_sop_idx(unsigned int rte_idx)
190 /* Get the Data RQ index from a RTE RQ index */
191 static inline unsigned int enic_rte_rq_idx_to_data_idx(unsigned int rte_idx)
193 return rte_idx * 2 + 1;
196 static inline unsigned int enic_vnic_rq_count(struct enic *enic)
198 return enic->rq_count * 2;
201 static inline unsigned int enic_cq_rq(__rte_unused struct enic *enic, unsigned int rq)
203 /* Scatter rx uses two receive queues together with one
204 * completion queue, so the completion queue number is no
205 * longer the same as the rq number.
210 static inline unsigned int enic_cq_wq(struct enic *enic, unsigned int wq)
212 return enic->rq_count + wq;
215 static inline struct enic *pmd_priv(struct rte_eth_dev *eth_dev)
217 return (struct enic *)eth_dev->data->dev_private;
220 static inline uint32_t
221 enic_ring_add(uint32_t n_descriptors, uint32_t i0, uint32_t i1)
223 uint32_t d = i0 + i1;
224 d -= (d >= n_descriptors) ? n_descriptors : 0;
228 static inline uint32_t
229 enic_ring_sub(uint32_t n_descriptors, uint32_t i0, uint32_t i1)
232 return (uint32_t)((d < 0) ? ((int32_t)n_descriptors + d) : d);
235 static inline uint32_t
236 enic_ring_incr(uint32_t n_descriptors, uint32_t idx)
239 if (unlikely(idx == n_descriptors))
244 void enic_fdir_stats_get(struct enic *enic,
245 struct rte_eth_fdir_stats *stats);
246 int enic_fdir_add_fltr(struct enic *enic,
247 struct rte_eth_fdir_filter *params);
248 int enic_fdir_del_fltr(struct enic *enic,
249 struct rte_eth_fdir_filter *params);
250 void enic_free_wq(void *txq);
251 int enic_alloc_intr_resources(struct enic *enic);
252 int enic_setup_finish(struct enic *enic);
253 int enic_alloc_wq(struct enic *enic, uint16_t queue_idx,
254 unsigned int socket_id, uint16_t nb_desc);
255 void enic_start_wq(struct enic *enic, uint16_t queue_idx);
256 int enic_stop_wq(struct enic *enic, uint16_t queue_idx);
257 void enic_start_rq(struct enic *enic, uint16_t queue_idx);
258 int enic_stop_rq(struct enic *enic, uint16_t queue_idx);
259 void enic_free_rq(void *rxq);
260 int enic_alloc_rq(struct enic *enic, uint16_t queue_idx,
261 unsigned int socket_id, struct rte_mempool *mp,
262 uint16_t nb_desc, uint16_t free_thresh);
263 int enic_set_vnic_res(struct enic *enic);
264 int enic_init_rss_nic_cfg(struct enic *enic);
265 int enic_set_rss_conf(struct enic *enic,
266 struct rte_eth_rss_conf *rss_conf);
267 int enic_set_rss_reta(struct enic *enic, union vnic_rss_cpu *rss_cpu);
268 int enic_set_vlan_strip(struct enic *enic);
269 int enic_enable(struct enic *enic);
270 int enic_disable(struct enic *enic);
271 void enic_remove(struct enic *enic);
272 int enic_get_link_status(struct enic *enic);
273 int enic_dev_stats_get(struct enic *enic,
274 struct rte_eth_stats *r_stats);
275 void enic_dev_stats_clear(struct enic *enic);
276 void enic_add_packet_filter(struct enic *enic);
277 int enic_set_mac_address(struct enic *enic, uint8_t *mac_addr);
278 void enic_del_mac_address(struct enic *enic, int mac_index);
279 unsigned int enic_cleanup_wq(struct enic *enic, struct vnic_wq *wq);
280 void enic_send_pkt(struct enic *enic, struct vnic_wq *wq,
281 struct rte_mbuf *tx_pkt, unsigned short len,
282 uint8_t sop, uint8_t eop, uint8_t cq_entry,
283 uint16_t ol_flags, uint16_t vlan_tag);
285 void enic_post_wq_index(struct vnic_wq *wq);
286 int enic_probe(struct enic *enic);
287 int enic_clsf_init(struct enic *enic);
288 void enic_clsf_destroy(struct enic *enic);
289 uint16_t enic_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
291 uint16_t enic_dummy_recv_pkts(void *rx_queue,
292 struct rte_mbuf **rx_pkts,
294 uint16_t enic_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
296 uint16_t enic_prep_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
298 int enic_set_mtu(struct enic *enic, uint16_t new_mtu);
299 int enic_link_update(struct enic *enic);
300 void enic_fdir_info(struct enic *enic);
301 void enic_fdir_info_get(struct enic *enic, struct rte_eth_fdir_info *stats);
302 void copy_fltr_v1(struct filter_v2 *fltr, struct rte_eth_fdir_input *input,
303 struct rte_eth_fdir_masks *masks);
304 void copy_fltr_v2(struct filter_v2 *fltr, struct rte_eth_fdir_input *input,
305 struct rte_eth_fdir_masks *masks);
306 extern const struct rte_flow_ops enic_flow_ops;
307 #endif /* _ENIC_H_ */