1 /*
2 * IBM eServer eHCA Infiniband device driver for Linux on POWER
3 *
4 * Function definitions and structs for EQs, NEQs and interrupts
5 *
6 * Authors: Heiko J Schick <schickhj@de.ibm.com>
7 * Khadija Souissi <souissi@de.ibm.com>
8 *
9 * Copyright (c) 2005 IBM Corporation
10 *
11 * All rights reserved.
12 *
13 * This source code is distributed under a dual license of GPL v2.0 and OpenIB
14 * BSD.
15 *
16 * OpenIB BSD License
17 *
18 * Redistribution and use in source and binary forms, with or without
19 * modification, are permitted provided that the following conditions are met:
20 *
21 * Redistributions of source code must retain the above copyright notice, this
22 * list of conditions and the following disclaimer.
23 *
24 * Redistributions in binary form must reproduce the above copyright notice,
25 * this list of conditions and the following disclaimer in the documentation
26 * and/or other materials
27 * provided with the distribution.
28 *
29 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
30 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
31 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
32 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
33 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
34 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
35 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
36 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
37 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
38 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
39 * POSSIBILITY OF SUCH DAMAGE.
40 */
41
42 #ifndef __EHCA_IRQ_H
43 #define __EHCA_IRQ_H
44
45
46 struct ehca_shca;
47
48 #include <linux/interrupt.h>
49 #include <linux/types.h>
50
51 int ehca_error_data(struct ehca_shca *shca, void *data, u64 resource);
52
53 irqreturn_t ehca_interrupt_neq(int irq, void *dev_id);
54 void ehca_tasklet_neq(unsigned long data);
55
56 irqreturn_t ehca_interrupt_eq(int irq, void *dev_id);
57 void ehca_tasklet_eq(unsigned long data);
58 void ehca_process_eq(struct ehca_shca *shca, int is_irq);
59
60 struct ehca_cpu_comp_task {
61 wait_queue_head_t wait_queue;
62 struct list_head cq_list;
63 struct task_struct *task;
64 spinlock_t task_lock;
65 int cq_jobs;
66 };
67
68 struct ehca_comp_pool {
69 struct ehca_cpu_comp_task *cpu_comp_tasks;
70 int last_cpu;
71 spinlock_t last_cpu_lock;
72 };
73
74 int ehca_create_comp_pool(void);
75 void ehca_destroy_comp_pool(void);
76
77 #endif
78
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