1 files changed, 112 insertions, 0 deletions
diff --git a/sys/cam/cam_sim.c b/sys/cam/cam_sim.c
new file mode 100644
index 0000000..7020441
--- /dev/null
+++ b/sys/cam/cam_sim.c
@@ -0,0 +1,112 @@
+/*
+ * 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.
+ *
+ *      $Id$
+ */
+
+#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,
+	      char *sim_name, void *softc, u_int32_t unit,
+	      u_int32_t max_dev_transactions,
+	      u_int32_t 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->base_transfer_speed = 3300; /* asynchronous 3300 kB/sec */
+		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_basexfer_speed(struct cam_sim *sim, u_int32_t base_xfer_speed)
+{
+	sim->base_transfer_speed = base_xfer_speed;
+}
+
+void
+cam_sim_set_path(struct cam_sim *sim, u_int32_t path_id)
+{
+	sim->path_id = path_id;
+}