drivers/net/ethernet/intel/fm10k/fm10k.h

   1 /* Intel Ethernet Switch Host Interface Driver
   2  * Copyright(c) 2013 - 2014 Intel Corporation.
   3  *
   4  * This program is free software; you can redistribute it and/or modify it
   5  * under the terms and conditions of the GNU General Public License,
   6  * version 2, as published by the Free Software Foundation.
   7  *
   8  * This program is distributed in the hope it will be useful, but WITHOUT
   9  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  10  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  11  * more details.
  12  *
  13  * The full GNU General Public License is included in this distribution in
  14  * the file called "COPYING".
  15  *
  16  * Contact Information:
  17  * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
  18  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  19  */
  20
  21 #ifndef _FM10K_H_
  22 #define _FM10K_H_
  23
  24 #include <linux/types.h>
  25 #include <linux/etherdevice.h>
  26 #include <linux/rtnetlink.h>
  27 #include <linux/if_vlan.h>
  28 #include <linux/pci.h>
  29
  30 #include "fm10k_pf.h"
  31
  32 #define FM10K_MAX_JUMBO_FRAME_SIZE      15358   /* Maximum supported size 15K */
  33
  34 enum fm10k_ring_f_enum {
  35         RING_F_RSS,
  36         RING_F_QOS,
  37         RING_F_ARRAY_SIZE  /* must be last in enum set */
  38 };
  39
  40 struct fm10k_ring_feature {
  41         u16 limit;      /* upper limit on feature indices */
  42         u16 indices;    /* current value of indices */
  43         u16 mask;       /* Mask used for feature to ring mapping */
  44         u16 offset;     /* offset to start of feature */
  45 };
  46
  47 #define fm10k_vxlan_port_for_each(vp, intfc) \
  48         list_for_each_entry(vp, &(intfc)->vxlan_port, list)
  49 struct fm10k_vxlan_port {
  50         struct list_head        list;
  51         sa_family_t             sa_family;
  52         __be16                  port;
  53 };
  54
  55 struct fm10k_intfc {
  56         unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
  57         struct net_device *netdev;
  58         struct pci_dev *pdev;
  59         unsigned long state;
  60
  61         u32 flags;
  62 #define FM10K_FLAG_RESET_REQUESTED              (u32)(1 << 0)
  63 #define FM10K_FLAG_RSS_FIELD_IPV4_UDP           (u32)(1 << 1)
  64 #define FM10K_FLAG_RSS_FIELD_IPV6_UDP           (u32)(1 << 2)
  65 #define FM10K_FLAG_RX_TS_ENABLED                (u32)(1 << 3)
  66 #define FM10K_FLAG_SWPRI_CONFIG                 (u32)(1 << 4)
  67         int xcast_mode;
  68
  69         u64 rx_overrun_pf;
  70         u64 rx_overrun_vf;
  71
  72         struct fm10k_ring_feature ring_feature[RING_F_ARRAY_SIZE];
  73
  74         struct fm10k_hw_stats stats;
  75         struct fm10k_hw hw;
  76         u32 __iomem *uc_addr;
  77         u16 msg_enable;
  78
  79         u32 reta[FM10K_RETA_SIZE];
  80         u32 rssrk[FM10K_RSSRK_SIZE];
  81
  82         /* VXLAN port tracking information */
  83         struct list_head vxlan_port;
  84
  85 #if defined(HAVE_DCBNL_IEEE) && defined(CONFIG_DCB)
  86         u8 pfc_en;
  87 #endif
  88         u8 rx_pause;
  89
  90         /* GLORT resources in use by PF */
  91         u16 glort;
  92         u16 glort_count;
  93
  94         /* VLAN ID for updating multicast/unicast lists */
  95         u16 vid;
  96 };
  97
  98 enum fm10k_state_t {
  99         __FM10K_RESETTING,
 100         __FM10K_DOWN,
 101         __FM10K_MBX_LOCK,
 102         __FM10K_LINK_DOWN,
 103 };
 104
 105 static inline void fm10k_mbx_lock(struct fm10k_intfc *interface)
 106 {
 107         /* busy loop if we cannot obtain the lock as some calls
 108          * such as ndo_set_rx_mode may be made in atomic context
 109          */
 110         while (test_and_set_bit(__FM10K_MBX_LOCK, &interface->state))
 111                 udelay(20);
 112 }
 113
 114 static inline void fm10k_mbx_unlock(struct fm10k_intfc *interface)
 115 {
 116         /* flush memory to make sure state is correct */
 117         smp_mb__before_atomic();
 118         clear_bit(__FM10K_MBX_LOCK, &interface->state);
 119 }
 120
 121 static inline int fm10k_mbx_trylock(struct fm10k_intfc *interface)
 122 {
 123         return !test_and_set_bit(__FM10K_MBX_LOCK, &interface->state);
 124 }
 125
 126 /* main */
 127 extern char fm10k_driver_name[];
 128 extern const char fm10k_driver_version[];
 129
 130 /* PCI */
 131 int fm10k_register_pci_driver(void);
 132 void fm10k_unregister_pci_driver(void);
 133
 134 /* Netdev */
 135 struct net_device *fm10k_alloc_netdev(void);
 136 #endif /* _FM10K_H_ */