drivers/net/ethernet/cisco/enic/enic.h

   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_ */