2 * Copyright 2008-2010 Cisco Systems, Inc. All rights reserved.
3 * Copyright 2007 Nuova Systems, Inc. All rights reserved.
5 * This program is free software; you may redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; version 2 of the License.
9 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
10 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
11 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
12 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
13 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
14 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
15 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
23 #include "vnic_enet.h"
28 #include "vnic_intr.h"
29 #include "vnic_stats.h"
32 #include <linux/irq.h>
34 #define DRV_NAME "enic"
35 #define DRV_DESCRIPTION "Cisco VIC Ethernet NIC Driver"
36 #define DRV_VERSION "2.1.1.50"
37 #define DRV_COPYRIGHT "Copyright 2008-2013 Cisco Systems, Inc"
39 #define ENIC_BARS_MAX 6
43 #define ENIC_CQ_MAX (ENIC_WQ_MAX + ENIC_RQ_MAX)
44 #define ENIC_INTR_MAX (ENIC_CQ_MAX + 2)
46 #define ENIC_AIC_LARGE_PKT_DIFF 3
48 struct enic_msix_entry {
50 char devname[IFNAMSIZ];
51 irqreturn_t (*isr)(int, void *);
55 /* Store only the lower range. Higher range is given by fw. */
56 struct enic_intr_mod_range {
57 u32 small_pkt_range_start;
58 u32 large_pkt_range_start;
61 struct enic_intr_mod_table {
66 #define ENIC_MAX_LINK_SPEEDS 3
67 #define ENIC_LINK_SPEED_10G 10000
68 #define ENIC_LINK_SPEED_4G 4000
69 #define ENIC_LINK_40G_INDEX 2
70 #define ENIC_LINK_10G_INDEX 1
71 #define ENIC_LINK_4G_INDEX 0
72 #define ENIC_RX_COALESCE_RANGE_END 125
73 #define ENIC_AIC_TS_BREAK 100
76 u32 small_pkt_range_start;
77 u32 large_pkt_range_start;
79 u32 use_adaptive_rx_coalesce;
83 #define ENIC_SRIOV_ENABLED (1 << 0)
85 /* enic port profile set flags */
86 #define ENIC_PORT_REQUEST_APPLIED (1 << 0)
87 #define ENIC_SET_REQUEST (1 << 1)
88 #define ENIC_SET_NAME (1 << 2)
89 #define ENIC_SET_INSTANCE (1 << 3)
90 #define ENIC_SET_HOST (1 << 4)
92 struct enic_port_profile {
95 char name[PORT_PROFILE_MAX];
96 u8 instance_uuid[PORT_UUID_MAX];
97 u8 host_uuid[PORT_UUID_MAX];
99 u8 mac_addr[ETH_ALEN];
102 /* Per-instance private data structure */
104 struct net_device *netdev;
105 struct pci_dev *pdev;
106 struct vnic_enet_config config;
107 struct vnic_dev_bar bar[ENIC_BARS_MAX];
108 struct vnic_dev *vdev;
109 struct timer_list notify_timer;
110 struct work_struct reset;
111 struct work_struct change_mtu_work;
112 struct msix_entry msix_entry[ENIC_INTR_MAX];
113 struct enic_msix_entry msix[ENIC_INTR_MAX];
115 spinlock_t devcmd_lock;
116 u8 mac_addr[ETH_ALEN];
117 u8 mc_addr[ENIC_MULTICAST_PERFECT_FILTERS][ETH_ALEN];
118 u8 uc_addr[ENIC_UNICAST_PERFECT_FILTERS][ETH_ALEN];
120 unsigned int priv_flags;
121 unsigned int mc_count;
122 unsigned int uc_count;
124 struct enic_rx_coal rx_coalesce_setting;
125 u32 rx_coalesce_usecs;
126 u32 tx_coalesce_usecs;
127 #ifdef CONFIG_PCI_IOV
130 spinlock_t enic_api_lock;
131 struct enic_port_profile *pp;
133 /* work queue cache line section */
134 ____cacheline_aligned struct vnic_wq wq[ENIC_WQ_MAX];
135 spinlock_t wq_lock[ENIC_WQ_MAX];
136 unsigned int wq_count;
140 /* receive queue cache line section */
141 ____cacheline_aligned struct vnic_rq rq[ENIC_RQ_MAX];
142 unsigned int rq_count;
143 u64 rq_truncated_pkts;
145 struct napi_struct napi[ENIC_RQ_MAX];
147 /* interrupt resource cache line section */
148 ____cacheline_aligned struct vnic_intr intr[ENIC_INTR_MAX];
149 unsigned int intr_count;
150 u32 __iomem *legacy_pba; /* memory-mapped */
152 /* completion queue cache line section */
153 ____cacheline_aligned struct vnic_cq cq[ENIC_CQ_MAX];
154 unsigned int cq_count;
157 static inline struct device *enic_get_dev(struct enic *enic)
159 return &(enic->pdev->dev);
162 static inline unsigned int enic_cq_rq(struct enic *enic, unsigned int rq)
167 static inline unsigned int enic_cq_wq(struct enic *enic, unsigned int wq)
169 return enic->rq_count + wq;
172 static inline unsigned int enic_legacy_io_intr(void)
177 static inline unsigned int enic_legacy_err_intr(void)
182 static inline unsigned int enic_legacy_notify_intr(void)
187 static inline unsigned int enic_msix_rq_intr(struct enic *enic,
190 return enic->cq[enic_cq_rq(enic, rq)].interrupt_offset;
193 static inline unsigned int enic_msix_wq_intr(struct enic *enic,
196 return enic->cq[enic_cq_wq(enic, wq)].interrupt_offset;
199 static inline unsigned int enic_msix_err_intr(struct enic *enic)
201 return enic->rq_count + enic->wq_count;
204 static inline unsigned int enic_msix_notify_intr(struct enic *enic)
206 return enic->rq_count + enic->wq_count + 1;
209 void enic_reset_addr_lists(struct enic *enic);
210 int enic_sriov_enabled(struct enic *enic);
211 int enic_is_valid_vf(struct enic *enic, int vf);
212 int enic_is_dynamic(struct enic *enic);
213 void enic_set_ethtool_ops(struct net_device *netdev);
215 #endif /* _ENIC_H_ */