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 static inline int falcon_rev(struct efx_nic *efx)
  27 {
  28         return efx->pci_dev->revision;
  29 }
  30
  31 extern struct efx_nic_type falcon_a_nic_type;
  32 extern struct efx_nic_type falcon_b_nic_type;
  33
  34 /**************************************************************************
  35  *
  36  * Externs
  37  *
  38  **************************************************************************
  39  */
  40
  41 /* TX data path */
  42 extern int falcon_probe_tx(struct efx_tx_queue *tx_queue);
  43 extern void falcon_init_tx(struct efx_tx_queue *tx_queue);
  44 extern void falcon_fini_tx(struct efx_tx_queue *tx_queue);
  45 extern void falcon_remove_tx(struct efx_tx_queue *tx_queue);
  46 extern void falcon_push_buffers(struct efx_tx_queue *tx_queue);
  47
  48 /* RX data path */
  49 extern int falcon_probe_rx(struct efx_rx_queue *rx_queue);
  50 extern void falcon_init_rx(struct efx_rx_queue *rx_queue);
  51 extern void falcon_fini_rx(struct efx_rx_queue *rx_queue);
  52 extern void falcon_remove_rx(struct efx_rx_queue *rx_queue);
  53 extern void falcon_notify_rx_desc(struct efx_rx_queue *rx_queue);
  54
  55 /* Event data path */
  56 extern int falcon_probe_eventq(struct efx_channel *channel);
  57 extern void falcon_init_eventq(struct efx_channel *channel);
  58 extern void falcon_fini_eventq(struct efx_channel *channel);
  59 extern void falcon_remove_eventq(struct efx_channel *channel);
  60 extern int falcon_process_eventq(struct efx_channel *channel, int rx_quota);
  61 extern void falcon_eventq_read_ack(struct efx_channel *channel);
  62
  63 /* Ports */
  64 extern int falcon_probe_port(struct efx_nic *efx);
  65 extern void falcon_remove_port(struct efx_nic *efx);
  66
  67 /* MAC/PHY */
  68 extern bool falcon_xaui_link_ok(struct efx_nic *efx);
  69 extern int falcon_dma_stats(struct efx_nic *efx,
  70                             unsigned int done_offset);
  71 extern void falcon_drain_tx_fifo(struct efx_nic *efx);
  72 extern void falcon_deconfigure_mac_wrapper(struct efx_nic *efx);
  73 extern void falcon_reconfigure_mac_wrapper(struct efx_nic *efx);
  74
  75 /* Interrupts and test events */
  76 extern int falcon_init_interrupt(struct efx_nic *efx);
  77 extern void falcon_enable_interrupts(struct efx_nic *efx);
  78 extern void falcon_generate_test_event(struct efx_channel *channel,
  79                                        unsigned int magic);
  80 extern void falcon_generate_interrupt(struct efx_nic *efx);
  81 extern void falcon_set_int_moderation(struct efx_channel *channel);
  82 extern void falcon_disable_interrupts(struct efx_nic *efx);
  83 extern void falcon_fini_interrupt(struct efx_nic *efx);
  84
  85 /* Global Resources */
  86 extern int falcon_probe_nic(struct efx_nic *efx);
  87 extern int falcon_probe_resources(struct efx_nic *efx);
  88 extern int falcon_init_nic(struct efx_nic *efx);
  89 extern int falcon_flush_queues(struct efx_nic *efx);
  90 extern int falcon_reset_hw(struct efx_nic *efx, enum reset_type method);
  91 extern void falcon_remove_resources(struct efx_nic *efx);
  92 extern void falcon_remove_nic(struct efx_nic *efx);
  93 extern void falcon_update_nic_stats(struct efx_nic *efx);
  94 extern void falcon_set_multicast_hash(struct efx_nic *efx);
  95 extern int falcon_reset_xaui(struct efx_nic *efx);
  96
  97 /* Tests */
  98 struct falcon_nvconfig;
  99 extern int falcon_read_nvram(struct efx_nic *efx,
 100                              struct falcon_nvconfig *nvconfig);
 101 extern int falcon_test_registers(struct efx_nic *efx);
 102
 103 /**************************************************************************
 104  *
 105  * Falcon MAC stats
 106  *
 107  **************************************************************************
 108  */
 109
 110 #define FALCON_STAT_OFFSET(falcon_stat) EFX_VAL(falcon_stat, offset)
 111 #define FALCON_STAT_WIDTH(falcon_stat) EFX_VAL(falcon_stat, WIDTH)
 112
 113 /* Retrieve statistic from statistics block */
 114 #define FALCON_STAT(efx, falcon_stat, efx_stat) do {            \
 115         if (FALCON_STAT_WIDTH(falcon_stat) == 16)               \
 116                 (efx)->mac_stats.efx_stat += le16_to_cpu(       \
 117                         *((__force __le16 *)                            \
 118                           (efx->stats_buffer.addr +             \
 119                            FALCON_STAT_OFFSET(falcon_stat))));  \
 120         else if (FALCON_STAT_WIDTH(falcon_stat) == 32)          \
 121                 (efx)->mac_stats.efx_stat += le32_to_cpu(       \
 122                         *((__force __le32 *)                            \
 123                           (efx->stats_buffer.addr +             \
 124                            FALCON_STAT_OFFSET(falcon_stat))));  \
 125         else                                                    \
 126                 (efx)->mac_stats.efx_stat += le64_to_cpu(       \
 127                         *((__force __le64 *)                            \
 128                           (efx->stats_buffer.addr +             \
 129                            FALCON_STAT_OFFSET(falcon_stat))));  \
 130         } while (0)
 131
 132 #define FALCON_MAC_STATS_SIZE 0x100
 133
 134 #define MAC_DATA_LBN 0
 135 #define MAC_DATA_WIDTH 32
 136
 137 extern void falcon_generate_event(struct efx_channel *channel,
 138                                   efx_qword_t *event);
 139
 140 #endif /* EFX_FALCON_H */