Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux...
[deliverable/linux.git] / drivers / net / mlx4 / mlx4.h
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1/*
2 * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
3 * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
4 * Copyright (c) 2005, 2006, 2007 Cisco Systems. All rights reserved.
51a379d0 5 * Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. All rights reserved.
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6 * Copyright (c) 2004 Voltaire, Inc. All rights reserved.
7 *
8 * This software is available to you under a choice of one of two
9 * licenses. You may choose to be licensed under the terms of the GNU
10 * General Public License (GPL) Version 2, available from the file
11 * COPYING in the main directory of this source tree, or the
12 * OpenIB.org BSD license below:
13 *
14 * Redistribution and use in source and binary forms, with or
15 * without modification, are permitted provided that the following
16 * conditions are met:
17 *
18 * - Redistributions of source code must retain the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer.
21 *
22 * - Redistributions in binary form must reproduce the above
23 * copyright notice, this list of conditions and the following
24 * disclaimer in the documentation and/or other materials
25 * provided with the distribution.
26 *
27 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
28 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
29 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
30 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
31 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
32 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
33 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
34 * SOFTWARE.
35 */
36
37#ifndef MLX4_H
38#define MLX4_H
39
525f5f44 40#include <linux/mutex.h>
225c7b1f 41#include <linux/radix-tree.h>
ee49bd93 42#include <linux/timer.h>
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43
44#include <linux/mlx4/device.h>
37608eea 45#include <linux/mlx4/driver.h>
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46#include <linux/mlx4/doorbell.h>
47
48#define DRV_NAME "mlx4_core"
49#define PFX DRV_NAME ": "
50#define DRV_VERSION "0.01"
51#define DRV_RELDATE "May 1, 2007"
52
53enum {
54 MLX4_HCR_BASE = 0x80680,
55 MLX4_HCR_SIZE = 0x0001c,
56 MLX4_CLR_INT_SIZE = 0x00008
57};
58
225c7b1f 59enum {
e57ac0c2 60 MLX4_MGM_ENTRY_SIZE = 0x100,
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61 MLX4_QP_PER_MGM = 4 * (MLX4_MGM_ENTRY_SIZE / 16 - 2),
62 MLX4_MTT_ENTRY_PER_SEG = 8
63};
64
65enum {
66 MLX4_EQ_ASYNC,
67 MLX4_EQ_COMP,
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68 MLX4_NUM_EQ
69};
70
71enum {
72 MLX4_NUM_PDS = 1 << 15
73};
74
75enum {
76 MLX4_CMPT_TYPE_QP = 0,
77 MLX4_CMPT_TYPE_SRQ = 1,
78 MLX4_CMPT_TYPE_CQ = 2,
79 MLX4_CMPT_TYPE_EQ = 3,
80 MLX4_CMPT_NUM_TYPE
81};
82
83enum {
84 MLX4_CMPT_SHIFT = 24,
85 MLX4_NUM_CMPTS = MLX4_CMPT_NUM_TYPE << MLX4_CMPT_SHIFT
86};
87
88#ifdef CONFIG_MLX4_DEBUG
89extern int mlx4_debug_level;
90
91#define mlx4_dbg(mdev, format, arg...) \
92 do { \
93 if (mlx4_debug_level) \
94 dev_printk(KERN_DEBUG, &mdev->pdev->dev, format, ## arg); \
95 } while (0)
96
97#else /* CONFIG_MLX4_DEBUG */
98
99#define mlx4_dbg(mdev, format, arg...) do { (void) mdev; } while (0)
100
101#endif /* CONFIG_MLX4_DEBUG */
102
103#define mlx4_err(mdev, format, arg...) \
104 dev_err(&mdev->pdev->dev, format, ## arg)
105#define mlx4_info(mdev, format, arg...) \
106 dev_info(&mdev->pdev->dev, format, ## arg)
107#define mlx4_warn(mdev, format, arg...) \
108 dev_warn(&mdev->pdev->dev, format, ## arg)
109
110struct mlx4_bitmap {
111 u32 last;
112 u32 top;
113 u32 max;
93fc9e1b 114 u32 reserved_top;
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115 u32 mask;
116 spinlock_t lock;
117 unsigned long *table;
118};
119
120struct mlx4_buddy {
121 unsigned long **bits;
e4044cfc 122 unsigned int *num_free;
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123 int max_order;
124 spinlock_t lock;
125};
126
127struct mlx4_icm;
128
129struct mlx4_icm_table {
130 u64 virt;
131 int num_icm;
132 int num_obj;
133 int obj_size;
134 int lowmem;
5b0bf5e2 135 int coherent;
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136 struct mutex mutex;
137 struct mlx4_icm **icm;
138};
139
140struct mlx4_eq {
141 struct mlx4_dev *dev;
142 void __iomem *doorbell;
143 int eqn;
144 u32 cons_index;
145 u16 irq;
146 u16 have_irq;
147 int nent;
148 struct mlx4_buf_list *page_list;
149 struct mlx4_mtt mtt;
150};
151
152struct mlx4_profile {
153 int num_qp;
154 int rdmarc_per_qp;
155 int num_srq;
156 int num_cq;
157 int num_mcg;
158 int num_mpt;
159 int num_mtt;
160};
161
162struct mlx4_fw {
163 u64 clr_int_base;
164 u64 catas_offset;
165 struct mlx4_icm *fw_icm;
166 struct mlx4_icm *aux_icm;
167 u32 catas_size;
168 u16 fw_pages;
169 u8 clr_int_bar;
170 u8 catas_bar;
171};
172
173struct mlx4_cmd {
174 struct pci_pool *pool;
175 void __iomem *hcr;
176 struct mutex hcr_mutex;
177 struct semaphore poll_sem;
178 struct semaphore event_sem;
179 int max_cmds;
180 spinlock_t context_lock;
181 int free_head;
182 struct mlx4_cmd_context *context;
183 u16 token_mask;
184 u8 use_events;
185 u8 toggle;
186};
187
188struct mlx4_uar_table {
189 struct mlx4_bitmap bitmap;
190};
191
192struct mlx4_mr_table {
193 struct mlx4_bitmap mpt_bitmap;
194 struct mlx4_buddy mtt_buddy;
195 u64 mtt_base;
196 u64 mpt_base;
197 struct mlx4_icm_table mtt_table;
198 struct mlx4_icm_table dmpt_table;
199};
200
201struct mlx4_cq_table {
202 struct mlx4_bitmap bitmap;
203 spinlock_t lock;
204 struct radix_tree_root tree;
205 struct mlx4_icm_table table;
206 struct mlx4_icm_table cmpt_table;
207};
208
209struct mlx4_eq_table {
210 struct mlx4_bitmap bitmap;
211 void __iomem *clr_int;
212 void __iomem *uar_map[(MLX4_NUM_EQ + 6) / 4];
213 u32 clr_mask;
214 struct mlx4_eq eq[MLX4_NUM_EQ];
215 u64 icm_virt;
216 struct page *icm_page;
217 dma_addr_t icm_dma;
218 struct mlx4_icm_table cmpt_table;
219 int have_irq;
220 u8 inta_pin;
221};
222
223struct mlx4_srq_table {
224 struct mlx4_bitmap bitmap;
225 spinlock_t lock;
226 struct radix_tree_root tree;
227 struct mlx4_icm_table table;
228 struct mlx4_icm_table cmpt_table;
229};
230
231struct mlx4_qp_table {
232 struct mlx4_bitmap bitmap;
233 u32 rdmarc_base;
234 int rdmarc_shift;
235 spinlock_t lock;
236 struct mlx4_icm_table qp_table;
237 struct mlx4_icm_table auxc_table;
238 struct mlx4_icm_table altc_table;
239 struct mlx4_icm_table rdmarc_table;
240 struct mlx4_icm_table cmpt_table;
241};
242
243struct mlx4_mcg_table {
244 struct mutex mutex;
245 struct mlx4_bitmap bitmap;
246 struct mlx4_icm_table table;
247};
248
249struct mlx4_catas_err {
250 u32 __iomem *map;
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251 struct timer_list timer;
252 struct list_head list;
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253};
254
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255#define MLX4_MAX_MAC_NUM 128
256#define MLX4_MAC_TABLE_SIZE (MLX4_MAX_MAC_NUM << 3)
257
258struct mlx4_mac_table {
259 __be64 entries[MLX4_MAX_MAC_NUM];
260 int refs[MLX4_MAX_MAC_NUM];
261 struct mutex mutex;
262 int total;
263 int max;
264};
265
266#define MLX4_MAX_VLAN_NUM 128
267#define MLX4_VLAN_TABLE_SIZE (MLX4_MAX_VLAN_NUM << 2)
268
269struct mlx4_vlan_table {
270 __be32 entries[MLX4_MAX_VLAN_NUM];
271 int refs[MLX4_MAX_VLAN_NUM];
272 struct mutex mutex;
273 int total;
274 int max;
275};
276
277struct mlx4_port_info {
278 struct mlx4_dev *dev;
279 int port;
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280 char dev_name[16];
281 struct device_attribute port_attr;
282 enum mlx4_port_type tmp_type;
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283 struct mlx4_mac_table mac_table;
284 struct mlx4_vlan_table vlan_table;
285};
286
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287struct mlx4_priv {
288 struct mlx4_dev dev;
289
290 struct list_head dev_list;
291 struct list_head ctx_list;
292 spinlock_t ctx_lock;
293
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294 struct list_head pgdir_list;
295 struct mutex pgdir_mutex;
296
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297 struct mlx4_fw fw;
298 struct mlx4_cmd cmd;
299
300 struct mlx4_bitmap pd_bitmap;
301 struct mlx4_uar_table uar_table;
302 struct mlx4_mr_table mr_table;
303 struct mlx4_cq_table cq_table;
304 struct mlx4_eq_table eq_table;
305 struct mlx4_srq_table srq_table;
306 struct mlx4_qp_table qp_table;
307 struct mlx4_mcg_table mcg_table;
308
309 struct mlx4_catas_err catas_err;
310
311 void __iomem *clr_base;
312
313 struct mlx4_uar driver_uar;
314 void __iomem *kar;
2a2336f8 315 struct mlx4_port_info port[MLX4_MAX_PORTS + 1];
7ff93f8b 316 struct mutex port_mutex;
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317};
318
319static inline struct mlx4_priv *mlx4_priv(struct mlx4_dev *dev)
320{
321 return container_of(dev, struct mlx4_priv, dev);
322}
323
324u32 mlx4_bitmap_alloc(struct mlx4_bitmap *bitmap);
325void mlx4_bitmap_free(struct mlx4_bitmap *bitmap, u32 obj);
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326u32 mlx4_bitmap_alloc_range(struct mlx4_bitmap *bitmap, int cnt, int align);
327void mlx4_bitmap_free_range(struct mlx4_bitmap *bitmap, u32 obj, int cnt);
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328int mlx4_bitmap_init(struct mlx4_bitmap *bitmap, u32 num, u32 mask,
329 u32 reserved_bot, u32 resetrved_top);
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330void mlx4_bitmap_cleanup(struct mlx4_bitmap *bitmap);
331
332int mlx4_reset(struct mlx4_dev *dev);
333
334int mlx4_init_pd_table(struct mlx4_dev *dev);
335int mlx4_init_uar_table(struct mlx4_dev *dev);
336int mlx4_init_mr_table(struct mlx4_dev *dev);
337int mlx4_init_eq_table(struct mlx4_dev *dev);
338int mlx4_init_cq_table(struct mlx4_dev *dev);
339int mlx4_init_qp_table(struct mlx4_dev *dev);
340int mlx4_init_srq_table(struct mlx4_dev *dev);
341int mlx4_init_mcg_table(struct mlx4_dev *dev);
342
343void mlx4_cleanup_pd_table(struct mlx4_dev *dev);
344void mlx4_cleanup_uar_table(struct mlx4_dev *dev);
345void mlx4_cleanup_mr_table(struct mlx4_dev *dev);
346void mlx4_cleanup_eq_table(struct mlx4_dev *dev);
347void mlx4_cleanup_cq_table(struct mlx4_dev *dev);
348void mlx4_cleanup_qp_table(struct mlx4_dev *dev);
349void mlx4_cleanup_srq_table(struct mlx4_dev *dev);
350void mlx4_cleanup_mcg_table(struct mlx4_dev *dev);
351
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352void mlx4_start_catas_poll(struct mlx4_dev *dev);
353void mlx4_stop_catas_poll(struct mlx4_dev *dev);
354int mlx4_catas_init(void);
355void mlx4_catas_cleanup(void);
356int mlx4_restart_one(struct pci_dev *pdev);
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357int mlx4_register_device(struct mlx4_dev *dev);
358void mlx4_unregister_device(struct mlx4_dev *dev);
37608eea 359void mlx4_dispatch_event(struct mlx4_dev *dev, enum mlx4_dev_event type, int port);
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360
361struct mlx4_dev_cap;
362struct mlx4_init_hca_param;
363
364u64 mlx4_make_profile(struct mlx4_dev *dev,
365 struct mlx4_profile *request,
366 struct mlx4_dev_cap *dev_cap,
367 struct mlx4_init_hca_param *init_hca);
368
369int mlx4_map_eq_icm(struct mlx4_dev *dev, u64 icm_virt);
370void mlx4_unmap_eq_icm(struct mlx4_dev *dev);
371
372int mlx4_cmd_init(struct mlx4_dev *dev);
373void mlx4_cmd_cleanup(struct mlx4_dev *dev);
374void mlx4_cmd_event(struct mlx4_dev *dev, u16 token, u8 status, u64 out_param);
375int mlx4_cmd_use_events(struct mlx4_dev *dev);
376void mlx4_cmd_use_polling(struct mlx4_dev *dev);
377
378void mlx4_cq_completion(struct mlx4_dev *dev, u32 cqn);
379void mlx4_cq_event(struct mlx4_dev *dev, u32 cqn, int event_type);
380
381void mlx4_qp_event(struct mlx4_dev *dev, u32 qpn, int event_type);
382
383void mlx4_srq_event(struct mlx4_dev *dev, u32 srqn, int event_type);
384
385void mlx4_handle_catas_err(struct mlx4_dev *dev);
386
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387void mlx4_init_mac_table(struct mlx4_dev *dev, struct mlx4_mac_table *table);
388void mlx4_init_vlan_table(struct mlx4_dev *dev, struct mlx4_vlan_table *table);
389
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390int mlx4_SET_PORT(struct mlx4_dev *dev, u8 port);
391
225c7b1f 392#endif /* MLX4_H */
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