LXR linux/drivers/infiniband/hw/ehca/ehca

   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
  46struct ehca_shca;
  47
  48#include <linux/interrupt.h>
  49#include <linux/types.h>
  50
  51int ehca_error_data(struct ehca_shca *shca, void *data, u64 resource);
  52
  53irqreturn_t ehca_interrupt_neq(int irq, void *dev_id);
  54void ehca_tasklet_neq(unsigned long data);
  55
  56irqreturn_t ehca_interrupt_eq(int irq, void *dev_id);
  57void ehca_tasklet_eq(unsigned long data);
  58void ehca_process_eq(struct ehca_shca *shca, int is_irq);
  59
  60struct 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
  68struct ehca_comp_pool {
  69        struct ehca_cpu_comp_task *cpu_comp_tasks;
  70        int last_cpu;
  71        spinlock_t last_cpu_lock;
  72};
  73
  74int ehca_create_comp_pool(void);
  75void ehca_destroy_comp_pool(void);
  76
  77#endif
  78