drivers/net/enic/enic.h

   1 /*
   2  * Copyright 2008 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 <linux/inet_lro.h>
  24
  25 #include "vnic_enet.h"
  26 #include "vnic_dev.h"
  27 #include "vnic_wq.h"
  28 #include "vnic_rq.h"
  29 #include "vnic_cq.h"
  30 #include "vnic_intr.h"
  31 #include "vnic_stats.h"
  32 #include "vnic_nic.h"
  33 #include "vnic_rss.h"
  34
  35 #define DRV_NAME                "enic"
  36 #define DRV_DESCRIPTION         "Cisco VIC Ethernet NIC Driver"
  37 #define DRV_VERSION             "1.3.1.1-pp"
  38 #define DRV_COPYRIGHT           "Copyright 2008-2009 Cisco Systems, Inc"
  39 #define PFX                     DRV_NAME ": "
  40
  41 #define ENIC_LRO_MAX_DESC       8
  42 #define ENIC_LRO_MAX_AGGR       64
  43
  44 #define ENIC_BARS_MAX           6
  45
  46 #define ENIC_WQ_MAX             8
  47 #define ENIC_RQ_MAX             8
  48 #define ENIC_CQ_MAX             (ENIC_WQ_MAX + ENIC_RQ_MAX)
  49 #define ENIC_INTR_MAX           (ENIC_CQ_MAX + 2)
  50
  51 enum enic_cq_index {
  52         ENIC_CQ_RQ,
  53         ENIC_CQ_WQ,
  54 };
  55
  56 enum enic_intx_intr_index {
  57         ENIC_INTX_WQ_RQ,
  58         ENIC_INTX_ERR,
  59         ENIC_INTX_NOTIFY,
  60 };
  61
  62 enum enic_msix_intr_index {
  63         ENIC_MSIX_RQ,
  64         ENIC_MSIX_WQ,
  65         ENIC_MSIX_ERR,
  66         ENIC_MSIX_NOTIFY,
  67         ENIC_MSIX_MAX,
  68 };
  69
  70 struct enic_msix_entry {
  71         int requested;
  72         char devname[IFNAMSIZ];
  73         irqreturn_t (*isr)(int, void *);
  74         void *devid;
  75 };
  76
  77 #define ENIC_SET_APPLIED                (1 << 0)
  78 #define ENIC_SET_REQUEST                (1 << 1)
  79 #define ENIC_SET_NAME                   (1 << 2)
  80 #define ENIC_SET_INSTANCE               (1 << 3)
  81 #define ENIC_SET_HOST                   (1 << 4)
  82
  83 struct enic_port_profile {
  84         u32 set;
  85         u8 request;
  86         char name[PORT_PROFILE_MAX];
  87         u8 instance_uuid[PORT_UUID_MAX];
  88         u8 host_uuid[PORT_UUID_MAX];
  89 };
  90
  91 /* Per-instance private data structure */
  92 struct enic {
  93         struct net_device *netdev;
  94         struct pci_dev *pdev;
  95         struct vnic_enet_config config;
  96         struct vnic_dev_bar bar[ENIC_BARS_MAX];
  97         struct vnic_dev *vdev;
  98         struct timer_list notify_timer;
  99         struct work_struct reset;
 100         struct msix_entry msix_entry[ENIC_MSIX_MAX];
 101         struct enic_msix_entry msix[ENIC_MSIX_MAX];
 102         u32 msg_enable;
 103         spinlock_t devcmd_lock;
 104         u8 mac_addr[ETH_ALEN];
 105         u8 mc_addr[ENIC_MULTICAST_PERFECT_FILTERS][ETH_ALEN];
 106         unsigned int flags;
 107         unsigned int mc_count;
 108         int csum_rx_enabled;
 109         u32 port_mtu;
 110         u32 rx_coalesce_usecs;
 111         u32 tx_coalesce_usecs;
 112         struct enic_port_profile pp;
 113
 114         /* work queue cache line section */
 115         ____cacheline_aligned struct vnic_wq wq[ENIC_WQ_MAX];
 116         spinlock_t wq_lock[ENIC_WQ_MAX];
 117         unsigned int wq_count;
 118         struct vlan_group *vlan_group;
 119
 120         /* receive queue cache line section */
 121         ____cacheline_aligned struct vnic_rq rq[ENIC_RQ_MAX];
 122         unsigned int rq_count;
 123         int (*rq_alloc_buf)(struct vnic_rq *rq);
 124         u64 rq_truncated_pkts;
 125         u64 rq_bad_fcs;
 126         struct napi_struct napi;
 127         struct net_lro_mgr lro_mgr;
 128         struct net_lro_desc lro_desc[ENIC_LRO_MAX_DESC];
 129
 130         /* interrupt resource cache line section */
 131         ____cacheline_aligned struct vnic_intr intr[ENIC_INTR_MAX];
 132         unsigned int intr_count;
 133         u32 __iomem *legacy_pba;                /* memory-mapped */
 134
 135         /* completion queue cache line section */
 136         ____cacheline_aligned struct vnic_cq cq[ENIC_CQ_MAX];
 137         unsigned int cq_count;
 138 };
 139
 140 #endif /* _ENIC_H_ */