2 * Copyright 2008-2014 Cisco Systems, Inc. All rights reserved.
3 * Copyright 2007 Nuova Systems, Inc. All rights reserved.
5 * Copyright (c) 2014, Cisco Systems, Inc.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
24 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
26 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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28 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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31 * POSSIBILITY OF SUCH DAMAGE.
38 #include "vnic_enet.h"
43 #include "vnic_intr.h"
44 #include "vnic_stats.h"
48 #include "cq_enet_desc.h"
50 #define DRV_NAME "enic_pmd"
51 #define DRV_DESCRIPTION "Cisco VIC Ethernet NIC Poll-mode Driver"
52 #define DRV_VERSION "1.0.0.6"
53 #define DRV_COPYRIGHT "Copyright 2008-2015 Cisco Systems, Inc"
56 /* With Rx scatter support, we use two RQs on VIC per RQ used by app. Both
57 * RQs use the same CQ.
59 #define ENIC_RQ_MAX 16
60 #define ENIC_CQ_MAX (ENIC_WQ_MAX + (ENIC_RQ_MAX / 2))
61 #define ENIC_INTR_MAX (ENIC_CQ_MAX + 2)
63 #define VLAN_ETH_HLEN 18
65 #define ENICPMD_SETTING(enic, f) ((enic->config.flags & VENETF_##f) ? 1 : 0)
67 #define ENICPMD_BDF_LENGTH 13 /* 0000:00:00.0'\0' */
68 #define ENIC_CALC_IP_CKSUM 1
69 #define ENIC_CALC_TCP_UDP_CKSUM 2
70 #define ENIC_MAX_MTU 9000
71 #define ENIC_PAGE_SIZE 4096
72 #define PAGE_ROUND_UP(x) \
73 ((((unsigned long)(x)) + ENIC_PAGE_SIZE-1) & (~(ENIC_PAGE_SIZE-1)))
75 #define ENICPMD_VFIO_PATH "/dev/vfio/vfio"
76 /*#define ENIC_DESC_COUNT_MAKE_ODD (x) do{if ((~(x)) & 1) { (x)--; } }while(0)*/
78 #define PCI_DEVICE_ID_CISCO_VIC_ENET 0x0043 /* ethernet vnic */
79 #define PCI_DEVICE_ID_CISCO_VIC_ENET_VF 0x0071 /* enet SRIOV VF */
82 #define ENICPMD_FDIR_MAX 64
84 struct enic_fdir_node {
85 struct rte_eth_fdir_filter filter;
91 struct rte_eth_fdir_stats stats;
92 struct rte_hash *hash;
93 struct enic_fdir_node *nodes[ENICPMD_FDIR_MAX];
96 struct enic_soft_stats {
97 rte_atomic64_t rx_nombuf;
98 rte_atomic64_t rx_packet_errors;
101 /* Per-instance private data structure */
104 struct rte_pci_device *pdev;
105 struct vnic_enet_config config;
106 struct vnic_dev_bar bar0;
107 struct vnic_dev *vdev;
109 unsigned int port_id;
110 struct rte_eth_dev *rte_dev;
111 struct enic_fdir fdir;
112 char bdf_name[ENICPMD_BDF_LENGTH];
117 uint8_t mac_addr[ETH_ALEN];
118 pthread_t err_intr_thread;
126 unsigned int priv_flags;
129 struct vnic_wq wq[ENIC_WQ_MAX];
130 unsigned int wq_count;
133 struct vnic_rq rq[ENIC_RQ_MAX];
134 unsigned int rq_count;
136 /* completion queue */
137 struct vnic_cq cq[ENIC_CQ_MAX];
138 unsigned int cq_count;
140 /* interrupt resource */
141 struct vnic_intr intr;
142 unsigned int intr_count;
144 /* software counters */
145 struct enic_soft_stats soft_stats;
148 static inline unsigned int enic_sop_rq(unsigned int rq)
153 static inline unsigned int enic_data_rq(unsigned int rq)
158 static inline unsigned int enic_vnic_rq_count(struct enic *enic)
160 return enic->rq_count * 2;
163 static inline unsigned int enic_cq_rq(__rte_unused struct enic *enic, unsigned int rq)
168 static inline unsigned int enic_cq_wq(struct enic *enic, unsigned int wq)
170 return enic->rq_count + wq;
173 static inline unsigned int enic_msix_err_intr(__rte_unused struct enic *enic)
178 static inline struct enic *pmd_priv(struct rte_eth_dev *eth_dev)
180 return (struct enic *)eth_dev->data->dev_private;
183 static inline uint32_t
184 enic_ring_add(uint32_t n_descriptors, uint32_t i0, uint32_t i1)
186 uint32_t d = i0 + i1;
187 d -= (d >= n_descriptors) ? n_descriptors : 0;
191 static inline uint32_t
192 enic_ring_sub(uint32_t n_descriptors, uint32_t i0, uint32_t i1)
195 return (uint32_t)((d < 0) ? ((int32_t)n_descriptors + d) : d);
198 static inline uint32_t
199 enic_ring_incr(uint32_t n_descriptors, uint32_t idx)
202 if (unlikely(idx == n_descriptors))
207 #if RTE_LOG_LEVEL >= RTE_LOG_DEBUG
208 #define ENIC_ASSERT(cond) \
210 if (unlikely(!(cond))) { \
211 rte_panic("line %d\tassert \"" #cond "\"" \
212 "failed\n", __LINE__); \
216 #define ENIC_ASSERT(cond) do {} while (0)
219 extern void enic_fdir_stats_get(struct enic *enic,
220 struct rte_eth_fdir_stats *stats);
221 extern int enic_fdir_add_fltr(struct enic *enic,
222 struct rte_eth_fdir_filter *params);
223 extern int enic_fdir_del_fltr(struct enic *enic,
224 struct rte_eth_fdir_filter *params);
225 extern void enic_free_wq(void *txq);
226 extern int enic_alloc_intr_resources(struct enic *enic);
227 extern int enic_setup_finish(struct enic *enic);
228 extern int enic_alloc_wq(struct enic *enic, uint16_t queue_idx,
229 unsigned int socket_id, uint16_t nb_desc);
230 extern void enic_start_wq(struct enic *enic, uint16_t queue_idx);
231 extern int enic_stop_wq(struct enic *enic, uint16_t queue_idx);
232 extern void enic_start_rq(struct enic *enic, uint16_t queue_idx);
233 extern int enic_stop_rq(struct enic *enic, uint16_t queue_idx);
234 extern void enic_free_rq(void *rxq);
235 extern int enic_alloc_rq(struct enic *enic, uint16_t queue_idx,
236 unsigned int socket_id, struct rte_mempool *mp,
238 extern int enic_set_rss_nic_cfg(struct enic *enic);
239 extern int enic_set_vnic_res(struct enic *enic);
240 extern void enic_set_hdr_split_size(struct enic *enic, u16 split_hdr_size);
241 extern int enic_enable(struct enic *enic);
242 extern int enic_disable(struct enic *enic);
243 extern void enic_remove(struct enic *enic);
244 extern int enic_get_link_status(struct enic *enic);
245 extern void enic_dev_stats_get(struct enic *enic,
246 struct rte_eth_stats *r_stats);
247 extern void enic_dev_stats_clear(struct enic *enic);
248 extern void enic_add_packet_filter(struct enic *enic);
249 extern void enic_set_mac_address(struct enic *enic, uint8_t *mac_addr);
250 extern void enic_del_mac_address(struct enic *enic);
251 extern unsigned int enic_cleanup_wq(struct enic *enic, struct vnic_wq *wq);
252 extern void enic_send_pkt(struct enic *enic, struct vnic_wq *wq,
253 struct rte_mbuf *tx_pkt, unsigned short len,
254 uint8_t sop, uint8_t eop, uint8_t cq_entry,
255 uint16_t ol_flags, uint16_t vlan_tag);
257 extern void enic_post_wq_index(struct vnic_wq *wq);
258 extern int enic_probe(struct enic *enic);
259 extern int enic_clsf_init(struct enic *enic);
260 extern void enic_clsf_destroy(struct enic *enic);
261 uint16_t enic_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
263 uint16_t enic_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
265 #endif /* _ENIC_H_ */