1 /****************************************************************************
2 * Driver for Solarflare Solarstorm network controllers and boards
3 * Copyright 2005-2006 Fen Systems Ltd.
4 * Copyright 2006-2010 Solarflare Communications Inc.
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.
14 #include "net_driver.h"
17 /* Solarstorm controllers use BAR 0 for I/O space and BAR 2(&3) for memory */
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
);
24 extern void efx_init_tx_queue_core_txq(struct efx_tx_queue
*tx_queue
);
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
);
28 efx_hard_start_xmit(struct sk_buff
*skb
, struct net_device
*net_dev
);
30 efx_enqueue_skb(struct efx_tx_queue
*tx_queue
, struct sk_buff
*skb
);
31 extern void efx_xmit_done(struct efx_tx_queue
*tx_queue
, unsigned int index
);
32 extern int efx_setup_tc(struct net_device
*net_dev
, u8 num_tc
);
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
);
41 extern void efx_rx_slow_fill(unsigned long context
);
42 extern void __efx_rx_packet(struct efx_channel
*channel
,
43 struct efx_rx_buffer
*rx_buf
, bool checksummed
);
44 extern void efx_rx_packet(struct efx_rx_queue
*rx_queue
, unsigned int index
,
45 unsigned int len
, bool checksummed
, bool discard
);
46 extern void efx_schedule_slow_fill(struct efx_rx_queue
*rx_queue
);
48 #define EFX_MAX_DMAQ_SIZE 4096UL
49 #define EFX_DEFAULT_DMAQ_SIZE 1024UL
50 #define EFX_MIN_DMAQ_SIZE 512UL
52 #define EFX_MAX_EVQ_SIZE 16384UL
53 #define EFX_MIN_EVQ_SIZE 512UL
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))
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
);
64 extern s32
efx_filter_insert_filter(struct efx_nic
*efx
,
65 struct efx_filter_spec
*spec
,
67 extern int efx_filter_remove_filter(struct efx_nic
*efx
,
68 struct efx_filter_spec
*spec
);
69 extern void efx_filter_clear_rx(struct efx_nic
*efx
,
70 enum efx_filter_priority priority
);
71 #ifdef CONFIG_RFS_ACCEL
72 extern int efx_filter_rfs(struct net_device
*net_dev
, const struct sk_buff
*skb
,
73 u16 rxq_index
, u32 flow_id
);
74 extern bool __efx_filter_rfs_expire(struct efx_nic
*efx
, unsigned quota
);
75 static inline void efx_filter_rfs_expire(struct efx_channel
*channel
)
77 if (channel
->rfs_filters_added
>= 60 &&
78 __efx_filter_rfs_expire(channel
->efx
, 100))
79 channel
->rfs_filters_added
-= 60;
81 #define efx_filter_rfs_enabled() 1
83 static inline void efx_filter_rfs_expire(struct efx_channel
*channel
) {}
84 #define efx_filter_rfs_enabled() 0
88 extern void efx_process_channel_now(struct efx_channel
*channel
);
90 efx_realloc_channels(struct efx_nic
*efx
, u32 rxq_entries
, u32 txq_entries
);
93 extern int efx_reconfigure_port(struct efx_nic
*efx
);
94 extern int __efx_reconfigure_port(struct efx_nic
*efx
);
97 extern const struct ethtool_ops efx_ethtool_ops
;
100 extern int efx_reset(struct efx_nic
*efx
, enum reset_type method
);
101 extern void efx_reset_down(struct efx_nic
*efx
, enum reset_type method
);
102 extern int efx_reset_up(struct efx_nic
*efx
, enum reset_type method
, bool ok
);
105 extern void efx_schedule_reset(struct efx_nic
*efx
, enum reset_type type
);
106 extern int efx_init_irq_moderation(struct efx_nic
*efx
, unsigned int tx_usecs
,
107 unsigned int rx_usecs
, bool rx_adaptive
,
108 bool rx_may_override_tx
);
109 extern void efx_get_irq_moderation(struct efx_nic
*efx
, unsigned int *tx_usecs
,
110 unsigned int *rx_usecs
, bool *rx_adaptive
);
112 /* Dummy PHY ops for PHY drivers */
113 extern int efx_port_dummy_op_int(struct efx_nic
*efx
);
114 extern void efx_port_dummy_op_void(struct efx_nic
*efx
);
118 #ifdef CONFIG_SFC_MTD
119 extern int efx_mtd_probe(struct efx_nic
*efx
);
120 extern void efx_mtd_rename(struct efx_nic
*efx
);
121 extern void efx_mtd_remove(struct efx_nic
*efx
);
123 static inline int efx_mtd_probe(struct efx_nic
*efx
) { return 0; }
124 static inline void efx_mtd_rename(struct efx_nic
*efx
) {}
125 static inline void efx_mtd_remove(struct efx_nic
*efx
) {}
128 static inline void efx_schedule_channel(struct efx_channel
*channel
)
130 netif_vdbg(channel
->efx
, intr
, channel
->efx
->net_dev
,
131 "channel %d scheduling NAPI poll on CPU%d\n",
132 channel
->channel
, raw_smp_processor_id());
133 channel
->work_pending
= true;
135 napi_schedule(&channel
->napi_str
);
138 extern void efx_link_status_changed(struct efx_nic
*efx
);
139 extern void efx_link_set_advertising(struct efx_nic
*efx
, u32
);
140 extern void efx_link_set_wanted_fc(struct efx_nic
*efx
, u8
);
142 #endif /* EFX_EFX_H */