2 * Common functions for SCSI Interface Modules (SIMs).
4 * Copyright (c) 1997 Justin T. Gibbs.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
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.
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
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
32 #include <sys/param.h>
33 #include <sys/systm.h>
34 #include <sys/malloc.h>
35 #include <sys/kernel.h>
38 #include <cam/cam_ccb.h>
39 #include <cam/cam_sim.h>
40 #include <cam/cam_queue.h>
42 #define CAM_PATH_ANY (u_int32_t)-1
44 MALLOC_DEFINE(M_CAMSIM, "CAM SIM", "CAM SIM buffers");
47 cam_simq_alloc(u_int32_t max_sim_transactions)
49 return (cam_devq_alloc(/*size*/0, max_sim_transactions));
53 cam_simq_free(struct cam_devq *devq)
59 cam_sim_alloc(sim_action_func sim_action, sim_poll_func sim_poll,
60 const char *sim_name, void *softc, u_int32_t unit,
61 int max_dev_transactions,
62 int max_tagged_dev_transactions, struct cam_devq *queue)
67 * If this is the xpt layer creating a sim, then it's OK
68 * to wait for an allocation.
70 * XXX Should we pass in a flag to indicate that wait is OK?
72 if (strcmp(sim_name, "xpt") == 0)
73 sim = (struct cam_sim *)malloc(sizeof(struct cam_sim),
76 sim = (struct cam_sim *)malloc(sizeof(struct cam_sim),
80 sim->sim_action = sim_action;
81 sim->sim_poll = sim_poll;
82 sim->sim_name = sim_name;
84 sim->path_id = CAM_PATH_ANY;
85 sim->unit_number = unit;
86 sim->bus_id = 0; /* set in xpt_bus_register */
87 sim->max_tagged_dev_openings = max_tagged_dev_transactions;
88 sim->max_dev_openings = max_dev_transactions;
90 callout_handle_init(&sim->c_handle);
98 cam_sim_free(struct cam_sim *sim, int free_devq)
101 cam_simq_free(sim->devq);
106 cam_sim_set_path(struct cam_sim *sim, u_int32_t path_id)
108 sim->path_id = path_id;