1 files changed, 99 insertions, 0 deletions
diff --git a/usr/src/lib/sun_sas/common/Sun_sasCloseAdapter.c b/usr/src/lib/sun_sas/common/Sun_sasCloseAdapter.c
new file mode 100644
index 0000000000..d6dc259be6
--- /dev/null
+++ b/usr/src/lib/sun_sas/common/Sun_sasCloseAdapter.c
@@ -0,0 +1,99 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+
+/*
+ * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#include    <sun_sas.h>
+
+/*
+ * Closes an adapter
+ *
+ * the handle is removed from the open_handles list
+ */
+void
+Sun_sasCloseAdapter(HBA_HANDLE handle)
+{
+	const char			ROUTINE[] = "Sun_sasCloseAdapter";
+	struct open_handle		*open_handle_ptr, *open_handle_prev_ptr;
+	int				found = 0;
+
+	if (global_hba_head == NULL) {
+		log(LOG_DEBUG, ROUTINE,
+		    "Attempted to close an invalid handle %08lx. "
+		    "There are no hba handles loaded in the VSL.",
+		    handle);
+		return;
+	}
+
+	/* Removing handle from open_handles; */
+	lock(&open_handles_lock);
+	if (global_hba_head->open_handles == NULL) {
+		/* check to see if there are any open global_hba_head */
+		log(LOG_DEBUG, ROUTINE,
+		    "Attempted to close an invalid handle %08lx. "
+		    "There are no open handles in the VSL.",
+		    handle);
+	} else if (global_hba_head->open_handles->next == NULL) {
+		/* there is only one handle open */
+		if (global_hba_head->open_handles->handle == handle) {
+			free(global_hba_head->open_handles);
+			global_hba_head->open_handles = NULL;
+		} else {
+			log(LOG_DEBUG, ROUTINE,
+			    "Attempted to close an invalid handle %08lx. "
+			    "Unable to find handle to close.", handle);
+		}
+	} else {	/* there is more than one handle open */
+		open_handle_ptr = global_hba_head->open_handles;
+		if (open_handle_ptr->handle == handle) {
+			global_hba_head->open_handles = open_handle_ptr->next;
+			free(open_handle_ptr);
+		} else {
+			for (open_handle_ptr = open_handle_ptr->next,
+			    open_handle_prev_ptr =
+			    global_hba_head->open_handles;
+			    open_handle_ptr != NULL;
+			    open_handle_ptr = open_handle_ptr->next) {
+				if (open_handle_ptr->handle == handle) {
+					open_handle_prev_ptr->next =
+					    open_handle_ptr->next;
+					free(open_handle_ptr);
+					found = 1;
+					break;
+				} else {
+					open_handle_prev_ptr =
+					    open_handle_prev_ptr->next;
+				}
+			}
+			if (found == 0) {
+				log(LOG_DEBUG, ROUTINE,
+				    "Attempted to close an invalid handle "
+				    "%08lx.  Unable to find handle to close.",
+				    handle);
+			}
+		}
+	}
+
+	unlock(&open_handles_lock);
+}