drivers/net/sfc/falcon.h

   1 /****************************************************************************
   2  * Driver for Solarflare Solarstorm network controllers and boards
   3  * Copyright 2005-2006 Fen Systems Ltd.
   4  * Copyright 2006-2008 Solarflare Communications Inc.
   5  *
   6  * This program is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License version 2 as published
   8  * by the Free Software Foundation, incorporated herein by reference.
   9  */
  10
  11 #ifndef EFX_FALCON_H
  12 #define EFX_FALCON_H
  13
  14 #include "net_driver.h"
  15
  16 /*
  17  * Falcon hardware control
  18  */
  19
  20 enum falcon_revision {
  21         FALCON_REV_A0 = 0,
  22         FALCON_REV_A1 = 1,
  23         FALCON_REV_B0 = 2,
  24 };
  25
  26 #define FALCON_REV(efx) ((efx)->pci_dev->revision)
  27
  28 extern struct efx_nic_type falcon_a_nic_type;
  29 extern struct efx_nic_type falcon_b_nic_type;
  30
  31 /**************************************************************************
  32  *
  33  * Externs
  34  *
  35  **************************************************************************
  36  */
  37
  38 /* TX data path */
  39 extern int falcon_probe_tx(struct efx_tx_queue *tx_queue);
  40 extern int falcon_init_tx(struct efx_tx_queue *tx_queue);
  41 extern void falcon_fini_tx(struct efx_tx_queue *tx_queue);
  42 extern void falcon_remove_tx(struct efx_tx_queue *tx_queue);
  43 extern void falcon_push_buffers(struct efx_tx_queue *tx_queue);
  44
  45 /* RX data path */
  46 extern int falcon_probe_rx(struct efx_rx_queue *rx_queue);
  47 extern int falcon_init_rx(struct efx_rx_queue *rx_queue);
  48 extern void falcon_fini_rx(struct efx_rx_queue *rx_queue);
  49 extern void falcon_remove_rx(struct efx_rx_queue *rx_queue);
  50 extern void falcon_notify_rx_desc(struct efx_rx_queue *rx_queue);
  51
  52 /* Event data path */
  53 extern int falcon_probe_eventq(struct efx_channel *channel);
  54 extern int falcon_init_eventq(struct efx_channel *channel);
  55 extern void falcon_fini_eventq(struct efx_channel *channel);
  56 extern void falcon_remove_eventq(struct efx_channel *channel);
  57 extern int falcon_process_eventq(struct efx_channel *channel, int *rx_quota);
  58 extern void falcon_eventq_read_ack(struct efx_channel *channel);
  59
  60 /* Ports */
  61 extern int falcon_probe_port(struct efx_nic *efx);
  62 extern void falcon_remove_port(struct efx_nic *efx);
  63
  64 /* MAC/PHY */
  65 extern int falcon_xaui_link_ok(struct efx_nic *efx);
  66 extern int falcon_dma_stats(struct efx_nic *efx,
  67                             unsigned int done_offset);
  68 extern void falcon_drain_tx_fifo(struct efx_nic *efx);
  69 extern void falcon_deconfigure_mac_wrapper(struct efx_nic *efx);
  70 extern void falcon_reconfigure_mac_wrapper(struct efx_nic *efx);
  71
  72 /* Interrupts and test events */
  73 extern int falcon_init_interrupt(struct efx_nic *efx);
  74 extern void falcon_enable_interrupts(struct efx_nic *efx);
  75 extern void falcon_generate_test_event(struct efx_channel *channel,
  76                                        unsigned int magic);
  77 extern void falcon_generate_interrupt(struct efx_nic *efx);
  78 extern void falcon_set_int_moderation(struct efx_channel *channel);
  79 extern void falcon_disable_interrupts(struct efx_nic *efx);
  80 extern void falcon_fini_interrupt(struct efx_nic *efx);
  81
  82 /* Global Resources */
  83 extern int falcon_probe_nic(struct efx_nic *efx);
  84 extern int falcon_probe_resources(struct efx_nic *efx);
  85 extern int falcon_init_nic(struct efx_nic *efx);
  86 extern int falcon_reset_hw(struct efx_nic *efx, enum reset_type method);
  87 extern void falcon_remove_resources(struct efx_nic *efx);
  88 extern void falcon_remove_nic(struct efx_nic *efx);
  89 extern void falcon_update_nic_stats(struct efx_nic *efx);
  90 extern void falcon_set_multicast_hash(struct efx_nic *efx);
  91 extern int falcon_reset_xaui(struct efx_nic *efx);
  92
  93 /**************************************************************************
  94  *
  95  * Falcon MAC stats
  96  *
  97  **************************************************************************
  98  */
  99
 100 #define FALCON_STAT_OFFSET(falcon_stat) EFX_VAL(falcon_stat, offset)
 101 #define FALCON_STAT_WIDTH(falcon_stat) EFX_VAL(falcon_stat, WIDTH)
 102
 103 /* Retrieve statistic from statistics block */
 104 #define FALCON_STAT(efx, falcon_stat, efx_stat) do {            \
 105         if (FALCON_STAT_WIDTH(falcon_stat) == 16)               \
 106                 (efx)->mac_stats.efx_stat += le16_to_cpu(       \
 107                         *((__force __le16 *)                            \
 108                           (efx->stats_buffer.addr +             \
 109                            FALCON_STAT_OFFSET(falcon_stat))));  \
 110         else if (FALCON_STAT_WIDTH(falcon_stat) == 32)          \
 111                 (efx)->mac_stats.efx_stat += le32_to_cpu(       \
 112                         *((__force __le32 *)                            \
 113                           (efx->stats_buffer.addr +             \
 114                            FALCON_STAT_OFFSET(falcon_stat))));  \
 115         else                                                    \
 116                 (efx)->mac_stats.efx_stat += le64_to_cpu(       \
 117                         *((__force __le64 *)                            \
 118                           (efx->stats_buffer.addr +             \
 119                            FALCON_STAT_OFFSET(falcon_stat))));  \
 120         } while (0)
 121
 122 #define FALCON_MAC_STATS_SIZE 0x100
 123
 124 #define MAC_DATA_LBN 0
 125 #define MAC_DATA_WIDTH 32
 126
 127 extern void falcon_generate_event(struct efx_channel *channel,
 128                                   efx_qword_t *event);
 129
 130 #endif /* EFX_FALCON_H */