Ben Hutchings | 8ceee66 | 2008-04-27 12:55:59 +0100 | [diff] [blame] | 1 | /**************************************************************************** |
| 2 | * Driver for Solarflare Solarstorm network controllers and boards |
| 3 | * Copyright 2005-2006 Fen Systems Ltd. |
Ben Hutchings | 0a6f40c | 2011-02-25 00:01:34 +0000 | [diff] [blame] | 4 | * Copyright 2006-2010 Solarflare Communications Inc. |
Ben Hutchings | 8ceee66 | 2008-04-27 12:55:59 +0100 | [diff] [blame] | 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_EFX_H |
| 12 | #define EFX_EFX_H |
| 13 | |
| 14 | #include "net_driver.h" |
Ben Hutchings | 64eebcf | 2010-09-20 08:43:07 +0000 | [diff] [blame] | 15 | #include "filter.h" |
Ben Hutchings | 8ceee66 | 2008-04-27 12:55:59 +0100 | [diff] [blame] | 16 | |
Ben Hutchings | dc803df | 2009-10-23 08:32:33 +0000 | [diff] [blame] | 17 | /* Solarstorm controllers use BAR 0 for I/O space and BAR 2(&3) for memory */ |
| 18 | #define EFX_MEM_BAR 2 |
| 19 | |
Ben Hutchings | 8ceee66 | 2008-04-27 12:55:59 +0100 | [diff] [blame] | 20 | /* TX */ |
Ben Hutchings | f5e7adc | 2009-11-23 16:07:30 +0000 | [diff] [blame] | 21 | extern int efx_probe_tx_queue(struct efx_tx_queue *tx_queue); |
| 22 | extern void efx_remove_tx_queue(struct efx_tx_queue *tx_queue); |
| 23 | extern void efx_init_tx_queue(struct efx_tx_queue *tx_queue); |
Ben Hutchings | 60031fc | 2011-01-12 18:39:40 +0000 | [diff] [blame] | 24 | extern void efx_init_tx_queue_core_txq(struct efx_tx_queue *tx_queue); |
Ben Hutchings | f5e7adc | 2009-11-23 16:07:30 +0000 | [diff] [blame] | 25 | extern void efx_fini_tx_queue(struct efx_tx_queue *tx_queue); |
| 26 | extern void efx_release_tx_buffers(struct efx_tx_queue *tx_queue); |
| 27 | extern netdev_tx_t |
| 28 | efx_hard_start_xmit(struct sk_buff *skb, struct net_device *net_dev); |
| 29 | extern netdev_tx_t |
| 30 | efx_enqueue_skb(struct efx_tx_queue *tx_queue, struct sk_buff *skb); |
Ben Hutchings | 59cf09c | 2009-10-23 08:31:54 +0000 | [diff] [blame] | 31 | extern void efx_xmit_done(struct efx_tx_queue *tx_queue, unsigned int index); |
Ben Hutchings | 94b274b | 2011-01-10 21:18:20 +0000 | [diff] [blame] | 32 | extern int efx_setup_tc(struct net_device *net_dev, u8 num_tc); |
Ben Hutchings | 8ceee66 | 2008-04-27 12:55:59 +0100 | [diff] [blame] | 33 | |
| 34 | /* RX */ |
Ben Hutchings | f5e7adc | 2009-11-23 16:07:30 +0000 | [diff] [blame] | 35 | extern int efx_probe_rx_queue(struct efx_rx_queue *rx_queue); |
| 36 | extern void efx_remove_rx_queue(struct efx_rx_queue *rx_queue); |
| 37 | extern void efx_init_rx_queue(struct efx_rx_queue *rx_queue); |
| 38 | extern void efx_fini_rx_queue(struct efx_rx_queue *rx_queue); |
| 39 | extern void efx_rx_strategy(struct efx_channel *channel); |
| 40 | extern void efx_fast_push_rx_descriptors(struct efx_rx_queue *rx_queue); |
Steve Hodgson | 90d683a | 2010-06-01 11:19:39 +0000 | [diff] [blame] | 41 | extern void efx_rx_slow_fill(unsigned long context); |
Ben Hutchings | f5e7adc | 2009-11-23 16:07:30 +0000 | [diff] [blame] | 42 | extern void __efx_rx_packet(struct efx_channel *channel, |
Ben Hutchings | db33956 | 2011-08-26 18:05:11 +0100 | [diff] [blame] | 43 | struct efx_rx_buffer *rx_buf); |
Ben Hutchings | 8ceee66 | 2008-04-27 12:55:59 +0100 | [diff] [blame] | 44 | extern void efx_rx_packet(struct efx_rx_queue *rx_queue, unsigned int index, |
Ben Hutchings | db33956 | 2011-08-26 18:05:11 +0100 | [diff] [blame] | 45 | unsigned int len, u16 flags); |
Steve Hodgson | 90d683a | 2010-06-01 11:19:39 +0000 | [diff] [blame] | 46 | extern void efx_schedule_slow_fill(struct efx_rx_queue *rx_queue); |
Steve Hodgson | ecc910f | 2010-09-10 06:42:22 +0000 | [diff] [blame] | 47 | |
| 48 | #define EFX_MAX_DMAQ_SIZE 4096UL |
| 49 | #define EFX_DEFAULT_DMAQ_SIZE 1024UL |
| 50 | #define EFX_MIN_DMAQ_SIZE 512UL |
| 51 | |
| 52 | #define EFX_MAX_EVQ_SIZE 16384UL |
| 53 | #define EFX_MIN_EVQ_SIZE 512UL |
Ben Hutchings | 8ceee66 | 2008-04-27 12:55:59 +0100 | [diff] [blame] | 54 | |
Ben Hutchings | 4642610 | 2010-09-10 06:42:33 +0000 | [diff] [blame] | 55 | /* The smallest [rt]xq_entries that the driver supports. Callers of |
| 56 | * efx_wake_queue() assume that they can subsequently send at least one |
| 57 | * skb. Falcon/A1 may require up to three descriptors per skb_frag. */ |
| 58 | #define EFX_MIN_RING_SIZE (roundup_pow_of_two(2 * 3 * MAX_SKB_FRAGS)) |
| 59 | |
Ben Hutchings | 64eebcf | 2010-09-20 08:43:07 +0000 | [diff] [blame] | 60 | /* Filters */ |
| 61 | extern int efx_probe_filters(struct efx_nic *efx); |
| 62 | extern void efx_restore_filters(struct efx_nic *efx); |
| 63 | extern void efx_remove_filters(struct efx_nic *efx); |
Ben Hutchings | 3532650 | 2012-01-03 12:05:27 +0000 | [diff] [blame] | 64 | extern s32 efx_filter_insert_filter(struct efx_nic *efx, |
Ben Hutchings | 64eebcf | 2010-09-20 08:43:07 +0000 | [diff] [blame] | 65 | struct efx_filter_spec *spec, |
| 66 | bool replace); |
Ben Hutchings | 1a6281a | 2012-01-03 12:05:39 +0000 | [diff] [blame] | 67 | extern int efx_filter_remove_id_safe(struct efx_nic *efx, |
| 68 | enum efx_filter_priority priority, |
| 69 | u32 filter_id); |
| 70 | extern int efx_filter_get_filter_safe(struct efx_nic *efx, |
| 71 | enum efx_filter_priority priority, |
| 72 | u32 filter_id, struct efx_filter_spec *); |
Ben Hutchings | 8891681 | 2010-12-07 19:02:27 +0000 | [diff] [blame] | 73 | extern void efx_filter_clear_rx(struct efx_nic *efx, |
| 74 | enum efx_filter_priority priority); |
Ben Hutchings | 1a6281a | 2012-01-03 12:05:39 +0000 | [diff] [blame] | 75 | extern u32 efx_filter_count_rx_used(struct efx_nic *efx, |
| 76 | enum efx_filter_priority priority); |
| 77 | extern u32 efx_filter_get_rx_id_limit(struct efx_nic *efx); |
| 78 | extern s32 efx_filter_get_rx_ids(struct efx_nic *efx, |
| 79 | enum efx_filter_priority priority, |
| 80 | u32 *buf, u32 size); |
Ben Hutchings | 64d8ad6 | 2011-01-05 00:50:41 +0000 | [diff] [blame] | 81 | #ifdef CONFIG_RFS_ACCEL |
| 82 | extern int efx_filter_rfs(struct net_device *net_dev, const struct sk_buff *skb, |
| 83 | u16 rxq_index, u32 flow_id); |
| 84 | extern bool __efx_filter_rfs_expire(struct efx_nic *efx, unsigned quota); |
| 85 | static inline void efx_filter_rfs_expire(struct efx_channel *channel) |
| 86 | { |
| 87 | if (channel->rfs_filters_added >= 60 && |
| 88 | __efx_filter_rfs_expire(channel->efx, 100)) |
| 89 | channel->rfs_filters_added -= 60; |
| 90 | } |
| 91 | #define efx_filter_rfs_enabled() 1 |
| 92 | #else |
| 93 | static inline void efx_filter_rfs_expire(struct efx_channel *channel) {} |
| 94 | #define efx_filter_rfs_enabled() 0 |
| 95 | #endif |
Ben Hutchings | 64eebcf | 2010-09-20 08:43:07 +0000 | [diff] [blame] | 96 | |
Ben Hutchings | 8ceee66 | 2008-04-27 12:55:59 +0100 | [diff] [blame] | 97 | /* Channels */ |
Ben Hutchings | 7f967c0 | 2012-02-13 23:45:02 +0000 | [diff] [blame] | 98 | extern int efx_channel_dummy_op_int(struct efx_channel *channel); |
Ben Hutchings | 8ceee66 | 2008-04-27 12:55:59 +0100 | [diff] [blame] | 99 | extern void efx_process_channel_now(struct efx_channel *channel); |
Ben Hutchings | 4642610 | 2010-09-10 06:42:33 +0000 | [diff] [blame] | 100 | extern int |
| 101 | efx_realloc_channels(struct efx_nic *efx, u32 rxq_entries, u32 txq_entries); |
Ben Hutchings | 8ceee66 | 2008-04-27 12:55:59 +0100 | [diff] [blame] | 102 | |
| 103 | /* Ports */ |
Ben Hutchings | d3245b2 | 2009-11-29 03:42:41 +0000 | [diff] [blame] | 104 | extern int efx_reconfigure_port(struct efx_nic *efx); |
| 105 | extern int __efx_reconfigure_port(struct efx_nic *efx); |
Ben Hutchings | 8c8661e | 2008-09-01 12:49:02 +0100 | [diff] [blame] | 106 | |
Ben Hutchings | f5e7adc | 2009-11-23 16:07:30 +0000 | [diff] [blame] | 107 | /* Ethtool support */ |
Ben Hutchings | f5e7adc | 2009-11-23 16:07:30 +0000 | [diff] [blame] | 108 | extern const struct ethtool_ops efx_ethtool_ops; |
| 109 | |
Ben Hutchings | 8c8661e | 2008-09-01 12:49:02 +0100 | [diff] [blame] | 110 | /* Reset handling */ |
Ben Hutchings | eb9f674 | 2009-11-29 03:43:15 +0000 | [diff] [blame] | 111 | extern int efx_reset(struct efx_nic *efx, enum reset_type method); |
Ben Hutchings | d3245b2 | 2009-11-29 03:42:41 +0000 | [diff] [blame] | 112 | extern void efx_reset_down(struct efx_nic *efx, enum reset_type method); |
| 113 | extern int efx_reset_up(struct efx_nic *efx, enum reset_type method, bool ok); |
Ben Hutchings | 8ceee66 | 2008-04-27 12:55:59 +0100 | [diff] [blame] | 114 | |
| 115 | /* Global */ |
| 116 | extern void efx_schedule_reset(struct efx_nic *efx, enum reset_type type); |
Ben Hutchings | 9e393b3 | 2011-09-05 07:43:04 +0000 | [diff] [blame] | 117 | extern int efx_init_irq_moderation(struct efx_nic *efx, unsigned int tx_usecs, |
| 118 | unsigned int rx_usecs, bool rx_adaptive, |
| 119 | bool rx_may_override_tx); |
Ben Hutchings | a0c4faf | 2011-09-05 07:42:25 +0000 | [diff] [blame] | 120 | extern void efx_get_irq_moderation(struct efx_nic *efx, unsigned int *tx_usecs, |
| 121 | unsigned int *rx_usecs, bool *rx_adaptive); |
Ben Hutchings | 8ceee66 | 2008-04-27 12:55:59 +0100 | [diff] [blame] | 122 | |
| 123 | /* Dummy PHY ops for PHY drivers */ |
| 124 | extern int efx_port_dummy_op_int(struct efx_nic *efx); |
| 125 | extern void efx_port_dummy_op_void(struct efx_nic *efx); |
stephen hemminger | d215697 | 2010-10-18 05:27:31 +0000 | [diff] [blame] | 126 | |
Ben Hutchings | 8ceee66 | 2008-04-27 12:55:59 +0100 | [diff] [blame] | 127 | |
Ben Hutchings | f415072 | 2008-11-04 20:34:28 +0000 | [diff] [blame] | 128 | /* MTD */ |
| 129 | #ifdef CONFIG_SFC_MTD |
| 130 | extern int efx_mtd_probe(struct efx_nic *efx); |
| 131 | extern void efx_mtd_rename(struct efx_nic *efx); |
| 132 | extern void efx_mtd_remove(struct efx_nic *efx); |
| 133 | #else |
| 134 | static inline int efx_mtd_probe(struct efx_nic *efx) { return 0; } |
| 135 | static inline void efx_mtd_rename(struct efx_nic *efx) {} |
| 136 | static inline void efx_mtd_remove(struct efx_nic *efx) {} |
| 137 | #endif |
Ben Hutchings | 8ceee66 | 2008-04-27 12:55:59 +0100 | [diff] [blame] | 138 | |
Ben Hutchings | 8ceee66 | 2008-04-27 12:55:59 +0100 | [diff] [blame] | 139 | static inline void efx_schedule_channel(struct efx_channel *channel) |
| 140 | { |
Ben Hutchings | 62776d0 | 2010-06-23 11:30:07 +0000 | [diff] [blame] | 141 | netif_vdbg(channel->efx, intr, channel->efx->net_dev, |
| 142 | "channel %d scheduling NAPI poll on CPU%d\n", |
| 143 | channel->channel, raw_smp_processor_id()); |
Ben Hutchings | dc8cfa5 | 2008-09-01 12:46:50 +0100 | [diff] [blame] | 144 | channel->work_pending = true; |
Ben Hutchings | 8ceee66 | 2008-04-27 12:55:59 +0100 | [diff] [blame] | 145 | |
Ben Hutchings | 288379f | 2009-01-19 16:43:59 -0800 | [diff] [blame] | 146 | napi_schedule(&channel->napi_str); |
Ben Hutchings | 8ceee66 | 2008-04-27 12:55:59 +0100 | [diff] [blame] | 147 | } |
| 148 | |
Ben Hutchings | 1646a6f | 2012-01-05 20:14:10 +0000 | [diff] [blame] | 149 | static inline void efx_schedule_channel_irq(struct efx_channel *channel) |
| 150 | { |
Ben Hutchings | dd40781 | 2012-02-28 23:40:21 +0000 | [diff] [blame] | 151 | channel->event_test_cpu = raw_smp_processor_id(); |
Ben Hutchings | 1646a6f | 2012-01-05 20:14:10 +0000 | [diff] [blame] | 152 | efx_schedule_channel(channel); |
| 153 | } |
| 154 | |
Steve Hodgson | fdaa9ae | 2009-11-28 05:34:05 +0000 | [diff] [blame] | 155 | extern void efx_link_status_changed(struct efx_nic *efx); |
Ben Hutchings | d3245b2 | 2009-11-29 03:42:41 +0000 | [diff] [blame] | 156 | extern void efx_link_set_advertising(struct efx_nic *efx, u32); |
David S. Miller | b5626946 | 2011-05-17 17:53:22 -0400 | [diff] [blame] | 157 | extern void efx_link_set_wanted_fc(struct efx_nic *efx, u8); |
Steve Hodgson | fdaa9ae | 2009-11-28 05:34:05 +0000 | [diff] [blame] | 158 | |
Ben Hutchings | 8ceee66 | 2008-04-27 12:55:59 +0100 | [diff] [blame] | 159 | #endif /* EFX_EFX_H */ |