1 /* 2 * Copyright 2008-2010 Cisco Systems, Inc. All rights reserved. 3 * Copyright 2007 Nuova Systems, Inc. All rights reserved. 4 * 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. 8 * 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 16 * SOFTWARE. 17 * 18 */ 19 20 #ifndef _ENIC_H_ 21 #define _ENIC_H_ 22 23 #include "vnic_enet.h" 24 #include "vnic_dev.h" 25 #include "vnic_wq.h" 26 #include "vnic_rq.h" 27 #include "vnic_cq.h" 28 #include "vnic_intr.h" 29 #include "vnic_stats.h" 30 #include "vnic_nic.h" 31 #include "vnic_rss.h" 32 #include <linux/irq.h> 33 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" 38 39 #define ENIC_BARS_MAX 6 40 41 #define ENIC_WQ_MAX 8 42 #define ENIC_RQ_MAX 8 43 #define ENIC_CQ_MAX (ENIC_WQ_MAX + ENIC_RQ_MAX) 44 #define ENIC_INTR_MAX (ENIC_CQ_MAX + 2) 45 46 struct enic_msix_entry { 47 int requested; 48 char devname[IFNAMSIZ]; 49 irqreturn_t (*isr)(int, void *); 50 void *devid; 51 }; 52 53 /* priv_flags */ 54 #define ENIC_SRIOV_ENABLED (1 << 0) 55 56 /* enic port profile set flags */ 57 #define ENIC_PORT_REQUEST_APPLIED (1 << 0) 58 #define ENIC_SET_REQUEST (1 << 1) 59 #define ENIC_SET_NAME (1 << 2) 60 #define ENIC_SET_INSTANCE (1 << 3) 61 #define ENIC_SET_HOST (1 << 4) 62 63 struct enic_port_profile { 64 u32 set; 65 u8 request; 66 char name[PORT_PROFILE_MAX]; 67 u8 instance_uuid[PORT_UUID_MAX]; 68 u8 host_uuid[PORT_UUID_MAX]; 69 u8 vf_mac[ETH_ALEN]; 70 u8 mac_addr[ETH_ALEN]; 71 }; 72 73 /* Per-instance private data structure */ 74 struct enic { 75 struct net_device *netdev; 76 struct pci_dev *pdev; 77 struct vnic_enet_config config; 78 struct vnic_dev_bar bar[ENIC_BARS_MAX]; 79 struct vnic_dev *vdev; 80 struct timer_list notify_timer; 81 struct work_struct reset; 82 struct work_struct change_mtu_work; 83 struct msix_entry msix_entry[ENIC_INTR_MAX]; 84 struct enic_msix_entry msix[ENIC_INTR_MAX]; 85 u32 msg_enable; 86 spinlock_t devcmd_lock; 87 u8 mac_addr[ETH_ALEN]; 88 u8 mc_addr[ENIC_MULTICAST_PERFECT_FILTERS][ETH_ALEN]; 89 u8 uc_addr[ENIC_UNICAST_PERFECT_FILTERS][ETH_ALEN]; 90 unsigned int flags; 91 unsigned int priv_flags; 92 unsigned int mc_count; 93 unsigned int uc_count; 94 u32 port_mtu; 95 u32 rx_coalesce_usecs; 96 u32 tx_coalesce_usecs; 97 #ifdef CONFIG_PCI_IOV 98 u16 num_vfs; 99 #endif 100 spinlock_t enic_api_lock; 101 struct enic_port_profile *pp; 102 103 /* work queue cache line section */ 104 ____cacheline_aligned struct vnic_wq wq[ENIC_WQ_MAX]; 105 spinlock_t wq_lock[ENIC_WQ_MAX]; 106 unsigned int wq_count; 107 u16 loop_enable; 108 u16 loop_tag; 109 110 /* receive queue cache line section */ 111 ____cacheline_aligned struct vnic_rq rq[ENIC_RQ_MAX]; 112 unsigned int rq_count; 113 u64 rq_truncated_pkts; 114 u64 rq_bad_fcs; 115 struct napi_struct napi[ENIC_RQ_MAX]; 116 117 /* interrupt resource cache line section */ 118 ____cacheline_aligned struct vnic_intr intr[ENIC_INTR_MAX]; 119 unsigned int intr_count; 120 u32 __iomem *legacy_pba; /* memory-mapped */ 121 122 /* completion queue cache line section */ 123 ____cacheline_aligned struct vnic_cq cq[ENIC_CQ_MAX]; 124 unsigned int cq_count; 125 }; 126 127 static inline struct device *enic_get_dev(struct enic *enic) 128 { 129 return &(enic->pdev->dev); 130 } 131 132 static inline unsigned int enic_cq_rq(struct enic *enic, unsigned int rq) 133 { 134 return rq; 135 } 136 137 static inline unsigned int enic_cq_wq(struct enic *enic, unsigned int wq) 138 { 139 return enic->rq_count + wq; 140 } 141 142 static inline unsigned int enic_legacy_io_intr(void) 143 { 144 return 0; 145 } 146 147 static inline unsigned int enic_legacy_err_intr(void) 148 { 149 return 1; 150 } 151 152 static inline unsigned int enic_legacy_notify_intr(void) 153 { 154 return 2; 155 } 156 157 static inline unsigned int enic_msix_rq_intr(struct enic *enic, 158 unsigned int rq) 159 { 160 return enic->cq[enic_cq_rq(enic, rq)].interrupt_offset; 161 } 162 163 static inline unsigned int enic_msix_wq_intr(struct enic *enic, 164 unsigned int wq) 165 { 166 return enic->cq[enic_cq_wq(enic, wq)].interrupt_offset; 167 } 168 169 static inline unsigned int enic_msix_err_intr(struct enic *enic) 170 { 171 return enic->rq_count + enic->wq_count; 172 } 173 174 static inline unsigned int enic_msix_notify_intr(struct enic *enic) 175 { 176 return enic->rq_count + enic->wq_count + 1; 177 } 178 179 void enic_reset_addr_lists(struct enic *enic); 180 int enic_sriov_enabled(struct enic *enic); 181 int enic_is_valid_vf(struct enic *enic, int vf); 182 int enic_is_dynamic(struct enic *enic); 183 void enic_set_ethtool_ops(struct net_device *netdev); 184 185 #endif /* _ENIC_H_ */ 186