mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-26 11:47:31 +00:00
107 lines
3.1 KiB
C
107 lines
3.1 KiB
C
/*
|
|
* Common functions for SCSI Interface Modules (SIMs).
|
|
*
|
|
* Copyright (c) 1997 Justin T. Gibbs.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions, and the following disclaimer,
|
|
* without modification, immediately at the beginning of the file.
|
|
* 2. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
|
|
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/malloc.h>
|
|
|
|
#include <cam/cam.h>
|
|
#include <cam/cam_ccb.h>
|
|
#include <cam/cam_sim.h>
|
|
#include <cam/cam_queue.h>
|
|
|
|
#define CAM_PATH_ANY (u_int32_t)-1
|
|
|
|
struct cam_devq *
|
|
cam_simq_alloc(u_int32_t max_sim_transactions)
|
|
{
|
|
return (cam_devq_alloc(/*size*/0, max_sim_transactions));
|
|
}
|
|
|
|
void
|
|
cam_simq_free(struct cam_devq *devq)
|
|
{
|
|
cam_devq_free(devq);
|
|
}
|
|
|
|
struct cam_sim *
|
|
cam_sim_alloc(sim_action_func sim_action, sim_poll_func sim_poll,
|
|
const char *sim_name, void *softc, u_int32_t unit,
|
|
int max_dev_transactions,
|
|
int max_tagged_dev_transactions, struct cam_devq *queue)
|
|
{
|
|
struct cam_sim *sim;
|
|
|
|
/*
|
|
* If this is the xpt layer creating a sim, then it's OK
|
|
* to wait for an allocation.
|
|
*
|
|
* XXX Should we pass in a flag to indicate that wait is OK?
|
|
*/
|
|
if (strcmp(sim_name, "xpt") == 0)
|
|
sim = (struct cam_sim *)malloc(sizeof(struct cam_sim),
|
|
M_DEVBUF, M_WAITOK);
|
|
else
|
|
sim = (struct cam_sim *)malloc(sizeof(struct cam_sim),
|
|
M_DEVBUF, M_NOWAIT);
|
|
|
|
if (sim != NULL) {
|
|
sim->sim_action = sim_action;
|
|
sim->sim_poll = sim_poll;
|
|
sim->sim_name = sim_name;
|
|
sim->softc = softc;
|
|
sim->path_id = CAM_PATH_ANY;
|
|
sim->unit_number = unit;
|
|
sim->bus_id = 0; /* set in xpt_bus_register */
|
|
sim->max_tagged_dev_openings = max_tagged_dev_transactions;
|
|
sim->max_dev_openings = max_dev_transactions;
|
|
sim->flags = 0;
|
|
callout_handle_init(&sim->c_handle);
|
|
sim->devq = queue;
|
|
}
|
|
|
|
return (sim);
|
|
}
|
|
|
|
void
|
|
cam_sim_free(struct cam_sim *sim, int free_devq)
|
|
{
|
|
if (free_devq)
|
|
cam_simq_free(sim->devq);
|
|
free(sim, M_DEVBUF);
|
|
}
|
|
|
|
void
|
|
cam_sim_set_path(struct cam_sim *sim, u_int32_t path_id)
|
|
{
|
|
sim->path_id = path_id;
|
|
}
|