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gerrit-public.fairphone.software / kernel / msm-4.9 / 1646a6f352a6f70fcca828589ed04797aa09d494 / . / drivers / net / ethernet / sfc / efx.h
blob: e0b66d158d79ceb46b0ce53b177fbcccd4422fd4 [file] [log] [blame]
Ben Hutchings8ceee662008-04-27 12:55:59 +0100[diff] [blame]1/****************************************************************************
2 * Driver for Solarflare Solarstorm network controllers and boards
3 * Copyright 2005-2006 Fen Systems Ltd.
Ben Hutchings0a6f40c2011-02-25 00:01:34 +0000[diff] [blame]4 * Copyright 2006-2010 Solarflare Communications Inc.
Ben Hutchings8ceee662008-04-27 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 Hutchings64eebcf2010-09-20 08:43:07 +0000[diff] [blame]15#include "filter.h"
Ben Hutchings8ceee662008-04-27 12:55:59 +0100[diff] [blame]16
Ben Hutchingsdc803df2009-10-23 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 Hutchings8ceee662008-04-27 12:55:59 +0100[diff] [blame]20/* TX */
Ben Hutchingsf5e7adc2009-11-23 16:07:30 +0000[diff] [blame]21extern int efx_probe_tx_queue(struct efx_tx_queue *tx_queue);
22extern void efx_remove_tx_queue(struct efx_tx_queue *tx_queue);
23extern void efx_init_tx_queue(struct efx_tx_queue *tx_queue);
Ben Hutchings60031fc2011-01-12 18:39:40 +0000[diff] [blame]24extern void efx_init_tx_queue_core_txq(struct efx_tx_queue *tx_queue);
Ben Hutchingsf5e7adc2009-11-23 16:07:30 +0000[diff] [blame]25extern void efx_fini_tx_queue(struct efx_tx_queue *tx_queue);
26extern void efx_release_tx_buffers(struct efx_tx_queue *tx_queue);
27extern netdev_tx_t
28efx_hard_start_xmit(struct sk_buff *skb, struct net_device *net_dev);
29extern netdev_tx_t
30efx_enqueue_skb(struct efx_tx_queue *tx_queue, struct sk_buff *skb);
Ben Hutchings59cf09c2009-10-23 08:31:54 +0000[diff] [blame]31extern void efx_xmit_done(struct efx_tx_queue *tx_queue, unsigned int index);
Ben Hutchings94b274b2011-01-10 21:18:20 +0000[diff] [blame]32extern int efx_setup_tc(struct net_device *net_dev, u8 num_tc);
Ben Hutchings8ceee662008-04-27 12:55:59 +0100[diff] [blame]33
34/* RX */
Ben Hutchingsf5e7adc2009-11-23 16:07:30 +0000[diff] [blame]35extern int efx_probe_rx_queue(struct efx_rx_queue *rx_queue);
36extern void efx_remove_rx_queue(struct efx_rx_queue *rx_queue);
37extern void efx_init_rx_queue(struct efx_rx_queue *rx_queue);
38extern void efx_fini_rx_queue(struct efx_rx_queue *rx_queue);
39extern void efx_rx_strategy(struct efx_channel *channel);
40extern void efx_fast_push_rx_descriptors(struct efx_rx_queue *rx_queue);
Steve Hodgson90d683a2010-06-01 11:19:39 +0000[diff] [blame]41extern void efx_rx_slow_fill(unsigned long context);
Ben Hutchingsf5e7adc2009-11-23 16:07:30 +0000[diff] [blame]42extern void __efx_rx_packet(struct efx_channel *channel,
43 struct efx_rx_buffer *rx_buf, bool checksummed);
Ben Hutchings8ceee662008-04-27 12:55:59 +0100[diff] [blame]44extern void efx_rx_packet(struct efx_rx_queue *rx_queue, unsigned int index,
Ben Hutchingsdc8cfa52008-09-01 12:46:50 +0100[diff] [blame]45 unsigned int len, bool checksummed, bool discard);
Steve Hodgson90d683a2010-06-01 11:19:39 +0000[diff] [blame]46extern void efx_schedule_slow_fill(struct efx_rx_queue *rx_queue);
Steve Hodgsonecc910f2010-09-10 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 Hutchings8ceee662008-04-27 12:55:59 +0100[diff] [blame]54
Ben Hutchings46426102010-09-10 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 Hutchings64eebcf2010-09-20 08:43:07 +0000[diff] [blame]60/* Filters */
61extern int efx_probe_filters(struct efx_nic *efx);
62extern void efx_restore_filters(struct efx_nic *efx);
63extern void efx_remove_filters(struct efx_nic *efx);
Ben Hutchings35326502012-01-03 12:05:27 +0000[diff] [blame]64extern s32 efx_filter_insert_filter(struct efx_nic *efx,
Ben Hutchings64eebcf2010-09-20 08:43:07 +0000[diff] [blame]65 struct efx_filter_spec *spec,
66 bool replace);
Ben Hutchings1a6281a2012-01-03 12:05:39 +0000[diff] [blame]67extern int efx_filter_remove_id_safe(struct efx_nic *efx,
68 enum efx_filter_priority priority,
69 u32 filter_id);
70extern 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 Hutchings88916812010-12-07 19:02:27 +0000[diff] [blame]73extern void efx_filter_clear_rx(struct efx_nic *efx,
74 enum efx_filter_priority priority);
Ben Hutchings1a6281a2012-01-03 12:05:39 +0000[diff] [blame]75extern u32 efx_filter_count_rx_used(struct efx_nic *efx,
76 enum efx_filter_priority priority);
77extern u32 efx_filter_get_rx_id_limit(struct efx_nic *efx);
78extern s32 efx_filter_get_rx_ids(struct efx_nic *efx,
79 enum efx_filter_priority priority,
80 u32 *buf, u32 size);
Ben Hutchings64d8ad62011-01-05 00:50:41 +0000[diff] [blame]81#ifdef CONFIG_RFS_ACCEL
82extern int efx_filter_rfs(struct net_device *net_dev, const struct sk_buff *skb,
83 u16 rxq_index, u32 flow_id);
84extern bool __efx_filter_rfs_expire(struct efx_nic *efx, unsigned quota);
85static 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
93static inline void efx_filter_rfs_expire(struct efx_channel *channel) {}
94#define efx_filter_rfs_enabled() 0
95#endif
Ben Hutchings64eebcf2010-09-20 08:43:07 +0000[diff] [blame]96
Ben Hutchings8ceee662008-04-27 12:55:59 +0100[diff] [blame]97/* Channels */
98extern void efx_process_channel_now(struct efx_channel *channel);
Ben Hutchings46426102010-09-10 06:42:33 +0000[diff] [blame]99extern int
100efx_realloc_channels(struct efx_nic *efx, u32 rxq_entries, u32 txq_entries);
Ben Hutchings8ceee662008-04-27 12:55:59 +0100[diff] [blame]101
102/* Ports */
Ben Hutchingsd3245b22009-11-29 03:42:41 +0000[diff] [blame]103extern int efx_reconfigure_port(struct efx_nic *efx);
104extern int __efx_reconfigure_port(struct efx_nic *efx);
Ben Hutchings8c8661e2008-09-01 12:49:02 +0100[diff] [blame]105
Ben Hutchingsf5e7adc2009-11-23 16:07:30 +0000[diff] [blame]106/* Ethtool support */
Ben Hutchingsf5e7adc2009-11-23 16:07:30 +0000[diff] [blame]107extern const struct ethtool_ops efx_ethtool_ops;
108
Ben Hutchings8c8661e2008-09-01 12:49:02 +0100[diff] [blame]109/* Reset handling */
Ben Hutchingseb9f6742009-11-29 03:43:15 +0000[diff] [blame]110extern int efx_reset(struct efx_nic *efx, enum reset_type method);
Ben Hutchingsd3245b22009-11-29 03:42:41 +0000[diff] [blame]111extern void efx_reset_down(struct efx_nic *efx, enum reset_type method);
112extern int efx_reset_up(struct efx_nic *efx, enum reset_type method, bool ok);
Ben Hutchings8ceee662008-04-27 12:55:59 +0100[diff] [blame]113
114/* Global */
115extern void efx_schedule_reset(struct efx_nic *efx, enum reset_type type);
Ben Hutchings9e393b32011-09-05 07:43:04 +0000[diff] [blame]116extern int efx_init_irq_moderation(struct efx_nic *efx, unsigned int tx_usecs,
117 unsigned int rx_usecs, bool rx_adaptive,
118 bool rx_may_override_tx);
Ben Hutchingsa0c4faf2011-09-05 07:42:25 +0000[diff] [blame]119extern void efx_get_irq_moderation(struct efx_nic *efx, unsigned int *tx_usecs,
120 unsigned int *rx_usecs, bool *rx_adaptive);
Ben Hutchings8ceee662008-04-27 12:55:59 +0100[diff] [blame]121
122/* Dummy PHY ops for PHY drivers */
123extern int efx_port_dummy_op_int(struct efx_nic *efx);
124extern void efx_port_dummy_op_void(struct efx_nic *efx);
stephen hemmingerd2156972010-10-18 05:27:31 +0000[diff] [blame]125
Ben Hutchings8ceee662008-04-27 12:55:59 +0100[diff] [blame]126
Ben Hutchingsf4150722008-11-04 20:34:28 +0000[diff] [blame]127/* MTD */
128#ifdef CONFIG_SFC_MTD
129extern int efx_mtd_probe(struct efx_nic *efx);
130extern void efx_mtd_rename(struct efx_nic *efx);
131extern void efx_mtd_remove(struct efx_nic *efx);
132#else
133static inline int efx_mtd_probe(struct efx_nic *efx) { return 0; }
134static inline void efx_mtd_rename(struct efx_nic *efx) {}
135static inline void efx_mtd_remove(struct efx_nic *efx) {}
136#endif
Ben Hutchings8ceee662008-04-27 12:55:59 +0100[diff] [blame]137
Ben Hutchings8ceee662008-04-27 12:55:59 +0100[diff] [blame]138static inline void efx_schedule_channel(struct efx_channel *channel)
139{
Ben Hutchings62776d02010-06-23 11:30:07 +0000[diff] [blame]140 netif_vdbg(channel->efx, intr, channel->efx->net_dev,
141 "channel %d scheduling NAPI poll on CPU%d\n",
142 channel->channel, raw_smp_processor_id());
Ben Hutchingsdc8cfa52008-09-01 12:46:50 +0100[diff] [blame]143 channel->work_pending = true;
Ben Hutchings8ceee662008-04-27 12:55:59 +0100[diff] [blame]144
Ben Hutchings288379f2009-01-19 16:43:59 -0800[diff] [blame]145 napi_schedule(&channel->napi_str);
Ben Hutchings8ceee662008-04-27 12:55:59 +0100[diff] [blame]146}
147
Ben Hutchings1646a6f2012-01-05 20:14:10 +0000[diff] [blame^]148static inline void efx_schedule_channel_irq(struct efx_channel *channel)
149{
150 channel->last_irq_cpu = raw_smp_processor_id();
151 efx_schedule_channel(channel);
152}
153
Steve Hodgsonfdaa9ae2009-11-28 05:34:05 +0000[diff] [blame]154extern void efx_link_status_changed(struct efx_nic *efx);
Ben Hutchingsd3245b22009-11-29 03:42:41 +0000[diff] [blame]155extern void efx_link_set_advertising(struct efx_nic *efx, u32);
David S. Millerb56269462011-05-17 17:53:22 -0400[diff] [blame]156extern void efx_link_set_wanted_fc(struct efx_nic *efx, u8);
Steve Hodgsonfdaa9ae2009-11-28 05:34:05 +0000[diff] [blame]157
Ben Hutchings8ceee662008-04-27 12:55:59 +0100[diff] [blame]158#endif /* EFX_EFX_H */