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.
11 #include "vnic_enet.h"
13 #include "vnic_flowman.h"
17 #include "vnic_intr.h"
18 #include "vnic_stats.h"
22 #include "cq_enet_desc.h"
24 #include <sys/queue.h>
25 #include <rte_spinlock.h>
27 #define DRV_NAME "enic_pmd"
28 #define DRV_DESCRIPTION "Cisco VIC Ethernet NIC Poll-mode Driver"
29 #define DRV_COPYRIGHT "Copyright 2008-2015 Cisco Systems, Inc"
31 #define VLAN_ETH_HLEN 18
33 #define ENICPMD_SETTING(enic, f) ((enic->config.flags & VENETF_##f) ? 1 : 0)
35 #define ENICPMD_BDF_LENGTH 13 /* 0000:00:00.0'\0' */
36 #define ENIC_CALC_IP_CKSUM 1
37 #define ENIC_CALC_TCP_UDP_CKSUM 2
38 #define ENIC_MAX_MTU 9000
39 #define ENIC_PAGE_SIZE 4096
40 #define PAGE_ROUND_UP(x) \
41 ((((unsigned long)(x)) + ENIC_PAGE_SIZE-1) & (~(ENIC_PAGE_SIZE-1)))
43 #define ENICPMD_VFIO_PATH "/dev/vfio/vfio"
44 /*#define ENIC_DESC_COUNT_MAKE_ODD (x) do{if ((~(x)) & 1) { (x)--; } }while(0)*/
46 #define PCI_DEVICE_ID_CISCO_VIC_ENET 0x0043 /* ethernet vnic */
47 #define PCI_DEVICE_ID_CISCO_VIC_ENET_VF 0x0071 /* enet SRIOV VF */
48 /* enet SRIOV Standalone vNic VF */
49 #define PCI_DEVICE_ID_CISCO_VIC_ENET_SN 0x02B7
51 /* Special Filter id for non-specific packet flagging. Don't change value */
52 #define ENIC_MAGIC_FILTER_ID 0xffff
54 #define ENICPMD_FDIR_MAX 64
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;
93 /* Defined in enic_fm_flow.c */
98 LIST_ENTRY(rte_flow) next;
99 /* Data for filter API based flow (enic_flow.c) */
100 uint16_t enic_filter_id;
101 struct filter_v2 enic_filter;
102 /* Data for flow manager based flow (enic_fm_flow.c) */
103 struct enic_fm_flow *fm;
106 /* Per-instance private data structure */
109 struct rte_pci_device *pdev;
110 struct vnic_enet_config config;
111 struct vnic_dev_bar bar0;
112 struct vnic_dev *vdev;
115 * mbuf_initializer contains 64 bits of mbuf rearm_data, used by
116 * the avx2 handler at this time.
118 uint64_t mbuf_initializer;
119 unsigned int port_id;
120 bool overlay_offload;
121 struct rte_eth_dev *rte_dev;
122 struct rte_eth_dev_data *dev_data;
123 struct enic_fdir fdir;
124 char bdf_name[ENICPMD_BDF_LENGTH];
129 uint8_t mac_addr[ETH_ALEN];
130 pthread_t err_intr_thread;
138 u32 flow_filter_mode;
139 u8 filter_actions; /* HW supported actions */
141 bool disable_overlay; /* devargs disable_overlay=1 */
142 uint8_t enable_avx2_rx; /* devargs enable-avx2-rx=1 */
143 uint8_t geneve_opt_avail; /* Geneve with options offload available */
144 uint8_t geneve_opt_enabled; /* Geneve with options offload enabled */
145 uint8_t geneve_opt_request; /* devargs geneve-opt=1 */
146 bool nic_cfg_chk; /* NIC_CFG_CHK available */
147 bool udp_rss_weak; /* Bodega style UDP RSS */
148 uint8_t ig_vlan_rewrite_mode; /* devargs ig-vlan-rewrite */
149 uint16_t vxlan_port; /* current vxlan port pushed to NIC */
150 int use_simple_tx_handler;
153 unsigned int priv_flags;
155 /* work queue (len = conf_wq_count) */
157 unsigned int wq_count; /* equals eth_dev nb_tx_queues */
159 /* receive queue (len = conf_rq_count) */
161 unsigned int rq_count; /* equals eth_dev nb_rx_queues */
163 /* completion queue (len = conf_cq_count) */
165 unsigned int cq_count; /* equals rq_count + wq_count */
167 /* interrupt vectors (len = conf_intr_count) */
168 struct vnic_intr *intr;
169 unsigned int intr_count; /* equals enabled interrupts (lsc + rxqs) */
171 /* software counters */
172 struct enic_soft_stats soft_stats;
174 /* configured resources on vic */
175 unsigned int conf_rq_count;
176 unsigned int conf_wq_count;
177 unsigned int conf_cq_count;
178 unsigned int conf_intr_count;
180 /* linked list storing memory allocations */
181 LIST_HEAD(enic_memzone_list, enic_memzone_entry) memzone_list;
182 rte_spinlock_t memzone_list_lock;
183 rte_spinlock_t mtu_lock;
185 LIST_HEAD(enic_flows, rte_flow) flows;
189 uint8_t hash_key_size;
190 uint64_t flow_type_rss_offloads; /* 0 indicates RSS not supported */
192 * Keep a copy of current RSS config for queries, as we cannot retrieve
195 uint8_t rss_hash_type; /* NIC_CFG_RSS_HASH_TYPE flags */
197 uint64_t rss_hf; /* ETH_RSS flags */
198 union vnic_rss_key rss_key;
199 union vnic_rss_cpu rss_cpu;
201 uint64_t rx_offload_capa; /* DEV_RX_OFFLOAD flags */
202 uint64_t tx_offload_capa; /* DEV_TX_OFFLOAD flags */
203 uint64_t tx_queue_offload_capa; /* DEV_TX_OFFLOAD flags */
204 uint64_t tx_offload_mask; /* PKT_TX flags accepted */
206 /* Multicast MAC addresses added to the NIC */
208 struct rte_ether_addr mc_addrs[ENIC_MULTICAST_PERFECT_FILTERS];
210 /* Flow manager API */
211 struct enic_flowman *fm;
214 /* Compute ethdev's max packet size from MTU */
215 static inline uint32_t enic_mtu_to_max_rx_pktlen(uint32_t mtu)
217 /* ethdev max size includes eth whereas NIC MTU does not */
218 return mtu + RTE_ETHER_HDR_LEN;
221 /* Get the CQ index from a Start of Packet(SOP) RQ index */
222 static inline unsigned int enic_sop_rq_idx_to_cq_idx(unsigned int sop_idx)
227 /* Get the RTE RQ index from a Start of Packet(SOP) RQ index */
228 static inline unsigned int enic_sop_rq_idx_to_rte_idx(unsigned int sop_idx)
233 /* Get the Start of Packet(SOP) RQ index from a RTE RQ index */
234 static inline unsigned int enic_rte_rq_idx_to_sop_idx(unsigned int rte_idx)
239 /* Get the Data RQ index from a RTE RQ index */
240 static inline unsigned int enic_rte_rq_idx_to_data_idx(unsigned int rte_idx)
242 return rte_idx * 2 + 1;
245 static inline unsigned int enic_vnic_rq_count(struct enic *enic)
247 return enic->rq_count * 2;
250 static inline unsigned int enic_cq_rq(__rte_unused struct enic *enic, unsigned int rq)
252 /* Scatter rx uses two receive queues together with one
253 * completion queue, so the completion queue number is no
254 * longer the same as the rq number.
259 static inline unsigned int enic_cq_wq(struct enic *enic, unsigned int wq)
261 return enic->rq_count + wq;
264 static inline struct enic *pmd_priv(struct rte_eth_dev *eth_dev)
266 return eth_dev->data->dev_private;
269 static inline uint32_t
270 enic_ring_add(uint32_t n_descriptors, uint32_t i0, uint32_t i1)
272 uint32_t d = i0 + i1;
273 d -= (d >= n_descriptors) ? n_descriptors : 0;
277 static inline uint32_t
278 enic_ring_sub(uint32_t n_descriptors, uint32_t i0, uint32_t i1)
281 return (uint32_t)((d < 0) ? ((int32_t)n_descriptors + d) : d);
284 static inline uint32_t
285 enic_ring_incr(uint32_t n_descriptors, uint32_t idx)
288 if (unlikely(idx == n_descriptors))
293 int dev_is_enic(struct rte_eth_dev *dev);
294 void enic_fdir_stats_get(struct enic *enic,
295 struct rte_eth_fdir_stats *stats);
296 int enic_fdir_add_fltr(struct enic *enic,
297 struct rte_eth_fdir_filter *params);
298 int enic_fdir_del_fltr(struct enic *enic,
299 struct rte_eth_fdir_filter *params);
300 void enic_free_wq(void *txq);
301 int enic_alloc_intr_resources(struct enic *enic);
302 int enic_setup_finish(struct enic *enic);
303 int enic_alloc_wq(struct enic *enic, uint16_t queue_idx,
304 unsigned int socket_id, uint16_t nb_desc);
305 void enic_start_wq(struct enic *enic, uint16_t queue_idx);
306 int enic_stop_wq(struct enic *enic, uint16_t queue_idx);
307 void enic_start_rq(struct enic *enic, uint16_t queue_idx);
308 int enic_stop_rq(struct enic *enic, uint16_t queue_idx);
309 void enic_free_rq(void *rxq);
310 int enic_alloc_rq(struct enic *enic, uint16_t queue_idx,
311 unsigned int socket_id, struct rte_mempool *mp,
312 uint16_t nb_desc, uint16_t free_thresh);
313 int enic_set_vnic_res(struct enic *enic);
314 int enic_init_rss_nic_cfg(struct enic *enic);
315 int enic_set_rss_conf(struct enic *enic,
316 struct rte_eth_rss_conf *rss_conf);
317 int enic_set_rss_reta(struct enic *enic, union vnic_rss_cpu *rss_cpu);
318 int enic_set_vlan_strip(struct enic *enic);
319 int enic_enable(struct enic *enic);
320 int enic_disable(struct enic *enic);
321 void enic_remove(struct enic *enic);
322 int enic_get_link_status(struct enic *enic);
323 int enic_dev_stats_get(struct enic *enic,
324 struct rte_eth_stats *r_stats);
325 int enic_dev_stats_clear(struct enic *enic);
326 int enic_add_packet_filter(struct enic *enic);
327 int enic_set_mac_address(struct enic *enic, uint8_t *mac_addr);
328 int enic_del_mac_address(struct enic *enic, int mac_index);
329 unsigned int enic_cleanup_wq(struct enic *enic, struct vnic_wq *wq);
330 void enic_send_pkt(struct enic *enic, struct vnic_wq *wq,
331 struct rte_mbuf *tx_pkt, unsigned short len,
332 uint8_t sop, uint8_t eop, uint8_t cq_entry,
333 uint16_t ol_flags, uint16_t vlan_tag);
335 void enic_post_wq_index(struct vnic_wq *wq);
336 int enic_probe(struct enic *enic);
337 int enic_clsf_init(struct enic *enic);
338 void enic_clsf_destroy(struct enic *enic);
339 int enic_fm_init(struct enic *enic);
340 void enic_fm_destroy(struct enic *enic);
341 void *enic_alloc_consistent(void *priv, size_t size, dma_addr_t *dma_handle,
343 void enic_free_consistent(void *priv, size_t size, void *vaddr,
344 dma_addr_t dma_handle);
345 uint16_t enic_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
347 uint16_t enic_noscatter_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
349 uint16_t enic_dummy_recv_pkts(void *rx_queue,
350 struct rte_mbuf **rx_pkts,
352 uint16_t enic_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
354 uint16_t enic_simple_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
356 uint16_t enic_prep_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
358 int enic_set_mtu(struct enic *enic, uint16_t new_mtu);
359 int enic_link_update(struct rte_eth_dev *eth_dev);
360 bool enic_use_vector_rx_handler(struct rte_eth_dev *eth_dev);
361 void enic_pick_rx_handler(struct rte_eth_dev *eth_dev);
362 void enic_pick_tx_handler(struct rte_eth_dev *eth_dev);
363 void enic_fdir_info(struct enic *enic);
364 void enic_fdir_info_get(struct enic *enic, struct rte_eth_fdir_info *stats);
365 extern const struct rte_flow_ops enic_flow_ops;
366 extern const struct rte_flow_ops enic_fm_flow_ops;
367 #endif /* _ENIC_H_ */