Use info->td instead of curthread in ffs_reload_scan1(); although
[dragonfly.git] / sys / bus / cam / cam_sim.c
CommitLineData
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1/*
2 * Common functions for SCSI Interface Modules (SIMs).
3 *
4 * Copyright (c) 1997 Justin T. Gibbs.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions, and the following disclaimer,
12 * without modification, immediately at the beginning of the file.
13 * 2. The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
20 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * $FreeBSD: src/sys/cam/cam_sim.c,v 1.3 1999/08/28 00:40:42 peter Exp $
1f2de5d4 29 * $DragonFly: src/sys/bus/cam/cam_sim.c,v 1.4 2003/08/07 21:16:44 dillon Exp $
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30 */
31
32#include <sys/param.h>
33#include <sys/systm.h>
34#include <sys/malloc.h>
35
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36#include "cam.h"
37#include "cam_ccb.h"
38#include "cam_sim.h"
39#include "cam_queue.h"
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40
41#define CAM_PATH_ANY (u_int32_t)-1
42
43struct cam_devq *
44cam_simq_alloc(u_int32_t max_sim_transactions)
45{
46 return (cam_devq_alloc(/*size*/0, max_sim_transactions));
47}
48
49void
50cam_simq_free(struct cam_devq *devq)
51{
52 cam_devq_free(devq);
53}
54
55struct cam_sim *
56cam_sim_alloc(sim_action_func sim_action, sim_poll_func sim_poll,
f15db79e 57 const char *sim_name, void *softc, u_int32_t unit,
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58 int max_dev_transactions,
59 int max_tagged_dev_transactions, struct cam_devq *queue)
60{
61 struct cam_sim *sim;
62
63 /*
64 * If this is the xpt layer creating a sim, then it's OK
65 * to wait for an allocation.
66 *
67 * XXX Should we pass in a flag to indicate that wait is OK?
68 */
69 if (strcmp(sim_name, "xpt") == 0)
70 sim = (struct cam_sim *)malloc(sizeof(struct cam_sim),
71 M_DEVBUF, M_WAITOK);
72 else
73 sim = (struct cam_sim *)malloc(sizeof(struct cam_sim),
74 M_DEVBUF, M_NOWAIT);
75
76 if (sim != NULL) {
77 sim->sim_action = sim_action;
78 sim->sim_poll = sim_poll;
79 sim->sim_name = sim_name;
80 sim->softc = softc;
81 sim->path_id = CAM_PATH_ANY;
82 sim->unit_number = unit;
83 sim->bus_id = 0; /* set in xpt_bus_register */
84 sim->max_tagged_dev_openings = max_tagged_dev_transactions;
85 sim->max_dev_openings = max_dev_transactions;
86 sim->flags = 0;
87 callout_handle_init(&sim->c_handle);
88 sim->devq = queue;
89 }
90
91 return (sim);
92}
93
94void
95cam_sim_free(struct cam_sim *sim, int free_devq)
96{
97 if (free_devq)
98 cam_simq_free(sim->devq);
99 free(sim, M_DEVBUF);
100}
101
102void
103cam_sim_set_path(struct cam_sim *sim, u_int32_t path_id)
104{
105 sim->path_id = path_id;
106}