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"
28 /* With Rx scatter support, we use two RQs on VIC per RQ used by app. Both
29 * RQs use the same CQ.
31 #define ENIC_RQ_MAX 16
32 #define ENIC_CQ_MAX (ENIC_WQ_MAX + (ENIC_RQ_MAX / 2))
33 #define ENIC_INTR_MAX (ENIC_CQ_MAX + 2)
34 #define ENIC_MAX_MAC_ADDR 64
36 #define VLAN_ETH_HLEN 18
38 #define ENICPMD_SETTING(enic, f) ((enic->config.flags & VENETF_##f) ? 1 : 0)
40 #define ENICPMD_BDF_LENGTH 13 /* 0000:00:00.0'\0' */
41 #define ENIC_CALC_IP_CKSUM 1
42 #define ENIC_CALC_TCP_UDP_CKSUM 2
43 #define ENIC_MAX_MTU 9000
44 #define ENIC_PAGE_SIZE 4096
45 #define PAGE_ROUND_UP(x) \
46 ((((unsigned long)(x)) + ENIC_PAGE_SIZE-1) & (~(ENIC_PAGE_SIZE-1)))
48 #define ENICPMD_VFIO_PATH "/dev/vfio/vfio"
49 /*#define ENIC_DESC_COUNT_MAKE_ODD (x) do{if ((~(x)) & 1) { (x)--; } }while(0)*/
51 #define PCI_DEVICE_ID_CISCO_VIC_ENET 0x0043 /* ethernet vnic */
52 #define PCI_DEVICE_ID_CISCO_VIC_ENET_VF 0x0071 /* enet SRIOV VF */
54 /* Special Filter id for non-specific packet flagging. Don't change value */
55 #define ENIC_MAGIC_FILTER_ID 0xffff
57 #define ENICPMD_FDIR_MAX 64
59 struct enic_fdir_node {
60 struct rte_eth_fdir_filter filter;
66 struct rte_eth_fdir_stats stats;
67 struct rte_hash *hash;
68 struct enic_fdir_node *nodes[ENICPMD_FDIR_MAX];
71 void (*copy_fltr_fn)(struct filter_v2 *filt,
72 struct rte_eth_fdir_input *input,
73 struct rte_eth_fdir_masks *masks);
76 struct enic_soft_stats {
77 rte_atomic64_t rx_nombuf;
78 rte_atomic64_t rx_packet_errors;
79 rte_atomic64_t tx_oversized;
82 struct enic_memzone_entry {
83 const struct rte_memzone *rz;
84 LIST_ENTRY(enic_memzone_entry) entries;
88 LIST_ENTRY(rte_flow) next;
90 struct filter_v2 enic_filter;
93 /* Per-instance private data structure */
96 struct rte_pci_device *pdev;
97 struct vnic_enet_config config;
98 struct vnic_dev_bar bar0;
99 struct vnic_dev *vdev;
101 unsigned int port_id;
102 struct rte_eth_dev *rte_dev;
103 struct enic_fdir fdir;
104 char bdf_name[ENICPMD_BDF_LENGTH];
109 uint8_t mac_addr[ETH_ALEN];
110 pthread_t err_intr_thread;
118 u32 flow_filter_mode;
122 unsigned int priv_flags;
125 struct vnic_wq wq[ENIC_WQ_MAX];
126 unsigned int wq_count;
129 struct vnic_rq rq[ENIC_RQ_MAX];
130 unsigned int rq_count;
132 /* completion queue */
133 struct vnic_cq cq[ENIC_CQ_MAX];
134 unsigned int cq_count;
136 /* interrupt resource */
137 struct vnic_intr intr;
138 unsigned int intr_count;
140 /* software counters */
141 struct enic_soft_stats soft_stats;
143 /* configured resources on vic */
144 unsigned int conf_rq_count;
145 unsigned int conf_wq_count;
146 unsigned int conf_cq_count;
147 unsigned int conf_intr_count;
149 /* linked list storing memory allocations */
150 LIST_HEAD(enic_memzone_list, enic_memzone_entry) memzone_list;
151 rte_spinlock_t memzone_list_lock;
152 rte_spinlock_t mtu_lock;
154 LIST_HEAD(enic_flows, rte_flow) flows;
155 rte_spinlock_t flows_lock;
158 /* Get the CQ index from a Start of Packet(SOP) RQ index */
159 static inline unsigned int enic_sop_rq_idx_to_cq_idx(unsigned int sop_idx)
164 /* Get the RTE RQ index from a Start of Packet(SOP) RQ index */
165 static inline unsigned int enic_sop_rq_idx_to_rte_idx(unsigned int sop_idx)
170 /* Get the Start of Packet(SOP) RQ index from a RTE RQ index */
171 static inline unsigned int enic_rte_rq_idx_to_sop_idx(unsigned int rte_idx)
176 /* Get the Data RQ index from a RTE RQ index */
177 static inline unsigned int enic_rte_rq_idx_to_data_idx(unsigned int rte_idx)
179 return rte_idx * 2 + 1;
182 static inline unsigned int enic_vnic_rq_count(struct enic *enic)
184 return enic->rq_count * 2;
187 static inline unsigned int enic_cq_rq(__rte_unused struct enic *enic, unsigned int rq)
189 /* Scatter rx uses two receive queues together with one
190 * completion queue, so the completion queue number is no
191 * longer the same as the rq number.
196 static inline unsigned int enic_cq_wq(struct enic *enic, unsigned int wq)
198 return enic->rq_count + wq;
201 static inline struct enic *pmd_priv(struct rte_eth_dev *eth_dev)
203 return (struct enic *)eth_dev->data->dev_private;
206 static inline uint32_t
207 enic_ring_add(uint32_t n_descriptors, uint32_t i0, uint32_t i1)
209 uint32_t d = i0 + i1;
210 d -= (d >= n_descriptors) ? n_descriptors : 0;
214 static inline uint32_t
215 enic_ring_sub(uint32_t n_descriptors, uint32_t i0, uint32_t i1)
218 return (uint32_t)((d < 0) ? ((int32_t)n_descriptors + d) : d);
221 static inline uint32_t
222 enic_ring_incr(uint32_t n_descriptors, uint32_t idx)
225 if (unlikely(idx == n_descriptors))
230 extern void enic_fdir_stats_get(struct enic *enic,
231 struct rte_eth_fdir_stats *stats);
232 extern int enic_fdir_add_fltr(struct enic *enic,
233 struct rte_eth_fdir_filter *params);
234 extern int enic_fdir_del_fltr(struct enic *enic,
235 struct rte_eth_fdir_filter *params);
236 extern void enic_free_wq(void *txq);
237 extern int enic_alloc_intr_resources(struct enic *enic);
238 extern int enic_setup_finish(struct enic *enic);
239 extern int enic_alloc_wq(struct enic *enic, uint16_t queue_idx,
240 unsigned int socket_id, uint16_t nb_desc);
241 extern void enic_start_wq(struct enic *enic, uint16_t queue_idx);
242 extern int enic_stop_wq(struct enic *enic, uint16_t queue_idx);
243 extern void enic_start_rq(struct enic *enic, uint16_t queue_idx);
244 extern int enic_stop_rq(struct enic *enic, uint16_t queue_idx);
245 extern void enic_free_rq(void *rxq);
246 extern int enic_alloc_rq(struct enic *enic, uint16_t queue_idx,
247 unsigned int socket_id, struct rte_mempool *mp,
248 uint16_t nb_desc, uint16_t free_thresh);
249 extern int enic_set_rss_nic_cfg(struct enic *enic);
250 extern int enic_set_vnic_res(struct enic *enic);
251 extern int enic_enable(struct enic *enic);
252 extern int enic_disable(struct enic *enic);
253 extern void enic_remove(struct enic *enic);
254 extern int enic_get_link_status(struct enic *enic);
255 extern int enic_dev_stats_get(struct enic *enic,
256 struct rte_eth_stats *r_stats);
257 extern void enic_dev_stats_clear(struct enic *enic);
258 extern void enic_add_packet_filter(struct enic *enic);
259 int enic_set_mac_address(struct enic *enic, uint8_t *mac_addr);
260 void enic_del_mac_address(struct enic *enic, int mac_index);
261 extern unsigned int enic_cleanup_wq(struct enic *enic, struct vnic_wq *wq);
262 extern void enic_send_pkt(struct enic *enic, struct vnic_wq *wq,
263 struct rte_mbuf *tx_pkt, unsigned short len,
264 uint8_t sop, uint8_t eop, uint8_t cq_entry,
265 uint16_t ol_flags, uint16_t vlan_tag);
267 extern void enic_post_wq_index(struct vnic_wq *wq);
268 extern int enic_probe(struct enic *enic);
269 extern int enic_clsf_init(struct enic *enic);
270 extern void enic_clsf_destroy(struct enic *enic);
271 uint16_t enic_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
273 uint16_t enic_dummy_recv_pkts(void *rx_queue,
274 struct rte_mbuf **rx_pkts,
276 uint16_t enic_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
278 int enic_set_mtu(struct enic *enic, uint16_t new_mtu);
279 int enic_link_update(struct enic *enic);
280 void enic_fdir_info(struct enic *enic);
281 void enic_fdir_info_get(struct enic *enic, struct rte_eth_fdir_info *stats);
282 void copy_fltr_v1(struct filter_v2 *fltr, struct rte_eth_fdir_input *input,
283 struct rte_eth_fdir_masks *masks);
284 void copy_fltr_v2(struct filter_v2 *fltr, struct rte_eth_fdir_input *input,
285 struct rte_eth_fdir_masks *masks);
286 extern const struct rte_flow_ops enic_flow_ops;
287 #endif /* _ENIC_H_ */