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1 | /**************************************************************************** |
2 | * Driver for Solarflare Solarstorm network controllers and boards | |
3 | * Copyright 2005-2006 Fen Systems Ltd. | |
0a6f40c6 | 4 | * Copyright 2006-2010 Solarflare Communications Inc. |
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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" | |
64eebcfd | 15 | #include "filter.h" |
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16 | |
17 | /* PCI IDs */ | |
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18 | #define BETHPAGE_A_P_DEVID 0x0803 |
19 | #define SIENA_A_P_DEVID 0x0813 | |
8ceee660 | 20 | |
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21 | /* Solarstorm controllers use BAR 0 for I/O space and BAR 2(&3) for memory */ |
22 | #define EFX_MEM_BAR 2 | |
23 | ||
8ceee660 | 24 | /* TX */ |
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25 | extern int efx_probe_tx_queue(struct efx_tx_queue *tx_queue); |
26 | extern void efx_remove_tx_queue(struct efx_tx_queue *tx_queue); | |
27 | extern void efx_init_tx_queue(struct efx_tx_queue *tx_queue); | |
60031fcc | 28 | extern void efx_init_tx_queue_core_txq(struct efx_tx_queue *tx_queue); |
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29 | extern void efx_fini_tx_queue(struct efx_tx_queue *tx_queue); |
30 | extern void efx_release_tx_buffers(struct efx_tx_queue *tx_queue); | |
31 | extern netdev_tx_t | |
32 | efx_hard_start_xmit(struct sk_buff *skb, struct net_device *net_dev); | |
33 | extern netdev_tx_t | |
34 | efx_enqueue_skb(struct efx_tx_queue *tx_queue, struct sk_buff *skb); | |
59cf09cc | 35 | extern void efx_xmit_done(struct efx_tx_queue *tx_queue, unsigned int index); |
94b274bf | 36 | extern int efx_setup_tc(struct net_device *net_dev, u8 num_tc); |
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37 | |
38 | /* RX */ | |
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39 | extern int efx_probe_rx_queue(struct efx_rx_queue *rx_queue); |
40 | extern void efx_remove_rx_queue(struct efx_rx_queue *rx_queue); | |
41 | extern void efx_init_rx_queue(struct efx_rx_queue *rx_queue); | |
42 | extern void efx_fini_rx_queue(struct efx_rx_queue *rx_queue); | |
43 | extern void efx_rx_strategy(struct efx_channel *channel); | |
44 | extern void efx_fast_push_rx_descriptors(struct efx_rx_queue *rx_queue); | |
90d683af | 45 | extern void efx_rx_slow_fill(unsigned long context); |
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46 | extern void __efx_rx_packet(struct efx_channel *channel, |
47 | struct efx_rx_buffer *rx_buf, bool checksummed); | |
8ceee660 | 48 | extern void efx_rx_packet(struct efx_rx_queue *rx_queue, unsigned int index, |
dc8cfa55 | 49 | unsigned int len, bool checksummed, bool discard); |
90d683af | 50 | extern void efx_schedule_slow_fill(struct efx_rx_queue *rx_queue); |
ecc910f5 SH |
51 | |
52 | #define EFX_MAX_DMAQ_SIZE 4096UL | |
53 | #define EFX_DEFAULT_DMAQ_SIZE 1024UL | |
54 | #define EFX_MIN_DMAQ_SIZE 512UL | |
55 | ||
56 | #define EFX_MAX_EVQ_SIZE 16384UL | |
57 | #define EFX_MIN_EVQ_SIZE 512UL | |
8ceee660 | 58 | |
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59 | /* The smallest [rt]xq_entries that the driver supports. Callers of |
60 | * efx_wake_queue() assume that they can subsequently send at least one | |
61 | * skb. Falcon/A1 may require up to three descriptors per skb_frag. */ | |
62 | #define EFX_MIN_RING_SIZE (roundup_pow_of_two(2 * 3 * MAX_SKB_FRAGS)) | |
63 | ||
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64 | /* Filters */ |
65 | extern int efx_probe_filters(struct efx_nic *efx); | |
66 | extern void efx_restore_filters(struct efx_nic *efx); | |
67 | extern void efx_remove_filters(struct efx_nic *efx); | |
68 | extern int efx_filter_insert_filter(struct efx_nic *efx, | |
69 | struct efx_filter_spec *spec, | |
70 | bool replace); | |
71 | extern int efx_filter_remove_filter(struct efx_nic *efx, | |
72 | struct efx_filter_spec *spec); | |
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73 | extern void efx_filter_clear_rx(struct efx_nic *efx, |
74 | enum efx_filter_priority priority); | |
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75 | #ifdef CONFIG_RFS_ACCEL |
76 | extern int efx_filter_rfs(struct net_device *net_dev, const struct sk_buff *skb, | |
77 | u16 rxq_index, u32 flow_id); | |
78 | extern bool __efx_filter_rfs_expire(struct efx_nic *efx, unsigned quota); | |
79 | static inline void efx_filter_rfs_expire(struct efx_channel *channel) | |
80 | { | |
81 | if (channel->rfs_filters_added >= 60 && | |
82 | __efx_filter_rfs_expire(channel->efx, 100)) | |
83 | channel->rfs_filters_added -= 60; | |
84 | } | |
85 | #define efx_filter_rfs_enabled() 1 | |
86 | #else | |
87 | static inline void efx_filter_rfs_expire(struct efx_channel *channel) {} | |
88 | #define efx_filter_rfs_enabled() 0 | |
89 | #endif | |
64eebcfd | 90 | |
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91 | /* Channels */ |
92 | extern void efx_process_channel_now(struct efx_channel *channel); | |
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93 | extern int |
94 | efx_realloc_channels(struct efx_nic *efx, u32 rxq_entries, u32 txq_entries); | |
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95 | |
96 | /* Ports */ | |
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97 | extern int efx_reconfigure_port(struct efx_nic *efx); |
98 | extern int __efx_reconfigure_port(struct efx_nic *efx); | |
8c8661e4 | 99 | |
f5e7adc3 | 100 | /* Ethtool support */ |
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101 | extern const struct ethtool_ops efx_ethtool_ops; |
102 | ||
8c8661e4 | 103 | /* Reset handling */ |
eb9f6744 | 104 | extern int efx_reset(struct efx_nic *efx, enum reset_type method); |
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105 | extern void efx_reset_down(struct efx_nic *efx, enum reset_type method); |
106 | extern int efx_reset_up(struct efx_nic *efx, enum reset_type method, bool ok); | |
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107 | |
108 | /* Global */ | |
109 | extern void efx_schedule_reset(struct efx_nic *efx, enum reset_type type); | |
8ceee660 | 110 | extern void efx_init_irq_moderation(struct efx_nic *efx, int tx_usecs, |
6fb70fd1 | 111 | int rx_usecs, bool rx_adaptive); |
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112 | |
113 | /* Dummy PHY ops for PHY drivers */ | |
114 | extern int efx_port_dummy_op_int(struct efx_nic *efx); | |
115 | extern void efx_port_dummy_op_void(struct efx_nic *efx); | |
d215697f | 116 | |
8ceee660 | 117 | |
f4150724 BH |
118 | /* MTD */ |
119 | #ifdef CONFIG_SFC_MTD | |
120 | extern int efx_mtd_probe(struct efx_nic *efx); | |
121 | extern void efx_mtd_rename(struct efx_nic *efx); | |
122 | extern void efx_mtd_remove(struct efx_nic *efx); | |
123 | #else | |
124 | static inline int efx_mtd_probe(struct efx_nic *efx) { return 0; } | |
125 | static inline void efx_mtd_rename(struct efx_nic *efx) {} | |
126 | static inline void efx_mtd_remove(struct efx_nic *efx) {} | |
127 | #endif | |
8ceee660 | 128 | |
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129 | static inline void efx_schedule_channel(struct efx_channel *channel) |
130 | { | |
62776d03 BH |
131 | netif_vdbg(channel->efx, intr, channel->efx->net_dev, |
132 | "channel %d scheduling NAPI poll on CPU%d\n", | |
133 | channel->channel, raw_smp_processor_id()); | |
dc8cfa55 | 134 | channel->work_pending = true; |
8ceee660 | 135 | |
288379f0 | 136 | napi_schedule(&channel->napi_str); |
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137 | } |
138 | ||
fdaa9aed | 139 | extern void efx_link_status_changed(struct efx_nic *efx); |
d3245b28 | 140 | extern void efx_link_set_advertising(struct efx_nic *efx, u32); |
b5626946 | 141 | extern void efx_link_set_wanted_fc(struct efx_nic *efx, u8); |
fdaa9aed | 142 | |
8ceee660 | 143 | #endif /* EFX_EFX_H */ |