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
53 * Interrupt 0: LSC and errors
54 * Interrupt 1: rx queue 0
55 * Interrupt 2: rx queue 1
58 #define ENICPMD_LSC_INTR_OFFSET 0
59 #define ENICPMD_RXQ_INTR_OFFSET 1
61 struct enic_fdir_node {
62 struct rte_eth_fdir_filter filter;
68 struct rte_eth_fdir_stats stats;
69 struct rte_hash *hash;
70 struct enic_fdir_node *nodes[ENICPMD_FDIR_MAX];
73 void (*copy_fltr_fn)(struct filter_v2 *filt,
74 struct rte_eth_fdir_input *input,
75 struct rte_eth_fdir_masks *masks);
78 struct enic_soft_stats {
79 rte_atomic64_t rx_nombuf;
80 rte_atomic64_t rx_packet_errors;
81 rte_atomic64_t tx_oversized;
84 struct enic_memzone_entry {
85 const struct rte_memzone *rz;
86 LIST_ENTRY(enic_memzone_entry) entries;
90 LIST_ENTRY(rte_flow) next;
92 struct filter_v2 enic_filter;
95 /* Per-instance private data structure */
98 struct rte_pci_device *pdev;
99 struct vnic_enet_config config;
100 struct vnic_dev_bar bar0;
101 struct vnic_dev *vdev;
103 unsigned int port_id;
104 struct rte_eth_dev *rte_dev;
105 struct enic_fdir fdir;
106 char bdf_name[ENICPMD_BDF_LENGTH];
111 uint8_t mac_addr[ETH_ALEN];
112 pthread_t err_intr_thread;
120 u32 flow_filter_mode;
121 u8 filter_actions; /* HW supported actions */
124 unsigned int priv_flags;
126 /* work queue (len = conf_wq_count) */
128 unsigned int wq_count; /* equals eth_dev nb_tx_queues */
130 /* receive queue (len = conf_rq_count) */
132 unsigned int rq_count; /* equals eth_dev nb_rx_queues */
134 /* completion queue (len = conf_cq_count) */
136 unsigned int cq_count; /* equals rq_count + wq_count */
138 /* interrupt vectors (len = conf_intr_count) */
139 struct vnic_intr *intr;
140 unsigned int intr_count; /* equals enabled interrupts (lsc + rxqs) */
142 /* software counters */
143 struct enic_soft_stats soft_stats;
145 /* configured resources on vic */
146 unsigned int conf_rq_count;
147 unsigned int conf_wq_count;
148 unsigned int conf_cq_count;
149 unsigned int conf_intr_count;
151 /* linked list storing memory allocations */
152 LIST_HEAD(enic_memzone_list, enic_memzone_entry) memzone_list;
153 rte_spinlock_t memzone_list_lock;
154 rte_spinlock_t mtu_lock;
156 LIST_HEAD(enic_flows, rte_flow) flows;
157 rte_spinlock_t flows_lock;
161 uint8_t hash_key_size;
162 uint64_t flow_type_rss_offloads; /* 0 indicates RSS not supported */
164 * Keep a copy of current RSS config for queries, as we cannot retrieve
167 uint8_t rss_hash_type; /* NIC_CFG_RSS_HASH_TYPE flags */
169 uint64_t rss_hf; /* ETH_RSS flags */
170 union vnic_rss_key rss_key;
171 union vnic_rss_cpu rss_cpu;
174 /* Compute ethdev's max packet size from MTU */
175 static inline uint32_t enic_mtu_to_max_rx_pktlen(uint32_t mtu)
177 /* ethdev max size includes eth and crc whereas NIC MTU does not */
178 return mtu + ETHER_HDR_LEN + ETHER_CRC_LEN;
181 /* Get the CQ index from a Start of Packet(SOP) RQ index */
182 static inline unsigned int enic_sop_rq_idx_to_cq_idx(unsigned int sop_idx)
187 /* Get the RTE RQ index from a Start of Packet(SOP) RQ index */
188 static inline unsigned int enic_sop_rq_idx_to_rte_idx(unsigned int sop_idx)
193 /* Get the Start of Packet(SOP) RQ index from a RTE RQ index */
194 static inline unsigned int enic_rte_rq_idx_to_sop_idx(unsigned int rte_idx)
199 /* Get the Data RQ index from a RTE RQ index */
200 static inline unsigned int enic_rte_rq_idx_to_data_idx(unsigned int rte_idx)
202 return rte_idx * 2 + 1;
205 static inline unsigned int enic_vnic_rq_count(struct enic *enic)
207 return enic->rq_count * 2;
210 static inline unsigned int enic_cq_rq(__rte_unused struct enic *enic, unsigned int rq)
212 /* Scatter rx uses two receive queues together with one
213 * completion queue, so the completion queue number is no
214 * longer the same as the rq number.
219 static inline unsigned int enic_cq_wq(struct enic *enic, unsigned int wq)
221 return enic->rq_count + wq;
224 static inline struct enic *pmd_priv(struct rte_eth_dev *eth_dev)
226 return (struct enic *)eth_dev->data->dev_private;
229 static inline uint32_t
230 enic_ring_add(uint32_t n_descriptors, uint32_t i0, uint32_t i1)
232 uint32_t d = i0 + i1;
233 d -= (d >= n_descriptors) ? n_descriptors : 0;
237 static inline uint32_t
238 enic_ring_sub(uint32_t n_descriptors, uint32_t i0, uint32_t i1)
241 return (uint32_t)((d < 0) ? ((int32_t)n_descriptors + d) : d);
244 static inline uint32_t
245 enic_ring_incr(uint32_t n_descriptors, uint32_t idx)
248 if (unlikely(idx == n_descriptors))
253 void enic_fdir_stats_get(struct enic *enic,
254 struct rte_eth_fdir_stats *stats);
255 int enic_fdir_add_fltr(struct enic *enic,
256 struct rte_eth_fdir_filter *params);
257 int enic_fdir_del_fltr(struct enic *enic,
258 struct rte_eth_fdir_filter *params);
259 void enic_free_wq(void *txq);
260 int enic_alloc_intr_resources(struct enic *enic);
261 int enic_setup_finish(struct enic *enic);
262 int enic_alloc_wq(struct enic *enic, uint16_t queue_idx,
263 unsigned int socket_id, uint16_t nb_desc);
264 void enic_start_wq(struct enic *enic, uint16_t queue_idx);
265 int enic_stop_wq(struct enic *enic, uint16_t queue_idx);
266 void enic_start_rq(struct enic *enic, uint16_t queue_idx);
267 int enic_stop_rq(struct enic *enic, uint16_t queue_idx);
268 void enic_free_rq(void *rxq);
269 int enic_alloc_rq(struct enic *enic, uint16_t queue_idx,
270 unsigned int socket_id, struct rte_mempool *mp,
271 uint16_t nb_desc, uint16_t free_thresh);
272 int enic_set_vnic_res(struct enic *enic);
273 int enic_init_rss_nic_cfg(struct enic *enic);
274 int enic_set_rss_conf(struct enic *enic,
275 struct rte_eth_rss_conf *rss_conf);
276 int enic_set_rss_reta(struct enic *enic, union vnic_rss_cpu *rss_cpu);
277 int enic_set_vlan_strip(struct enic *enic);
278 int enic_enable(struct enic *enic);
279 int enic_disable(struct enic *enic);
280 void enic_remove(struct enic *enic);
281 int enic_get_link_status(struct enic *enic);
282 int enic_dev_stats_get(struct enic *enic,
283 struct rte_eth_stats *r_stats);
284 void enic_dev_stats_clear(struct enic *enic);
285 void enic_add_packet_filter(struct enic *enic);
286 int enic_set_mac_address(struct enic *enic, uint8_t *mac_addr);
287 void enic_del_mac_address(struct enic *enic, int mac_index);
288 unsigned int enic_cleanup_wq(struct enic *enic, struct vnic_wq *wq);
289 void enic_send_pkt(struct enic *enic, struct vnic_wq *wq,
290 struct rte_mbuf *tx_pkt, unsigned short len,
291 uint8_t sop, uint8_t eop, uint8_t cq_entry,
292 uint16_t ol_flags, uint16_t vlan_tag);
294 void enic_post_wq_index(struct vnic_wq *wq);
295 int enic_probe(struct enic *enic);
296 int enic_clsf_init(struct enic *enic);
297 void enic_clsf_destroy(struct enic *enic);
298 uint16_t enic_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
300 uint16_t enic_dummy_recv_pkts(void *rx_queue,
301 struct rte_mbuf **rx_pkts,
303 uint16_t enic_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
305 uint16_t enic_prep_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
307 int enic_set_mtu(struct enic *enic, uint16_t new_mtu);
308 int enic_link_update(struct enic *enic);
309 void enic_fdir_info(struct enic *enic);
310 void enic_fdir_info_get(struct enic *enic, struct rte_eth_fdir_info *stats);
311 void copy_fltr_v1(struct filter_v2 *fltr, struct rte_eth_fdir_input *input,
312 struct rte_eth_fdir_masks *masks);
313 void copy_fltr_v2(struct filter_v2 *fltr, struct rte_eth_fdir_input *input,
314 struct rte_eth_fdir_masks *masks);
315 extern const struct rte_flow_ops enic_flow_ops;
316 #endif /* _ENIC_H_ */