[SCSI] bfa: Brocade BFA FC SCSI driver

Add new driver for Brocade Hardware

Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

1 files changed, 60 insertions, 0 deletions

diff --git a/drivers/scsi/bfa/include/cs/bfa_checksum.h b/drivers/scsi/bfa/include/cs/bfa_checksum.h
new file mode 100644
index 000000000000..af8c1d533ba8
--- /dev/null
+++ b/drivers/scsi/bfa/include/cs/bfa_checksum.h
@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2005-2009 Brocade Communications Systems, Inc.
+ * All rights reserved
+ * www.brocade.com
+ *
+ * Linux driver for Brocade Fibre Channel Host Bus Adapter.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License (GPL) Version 2 as
+ * published by the Free Software Foundation
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+/**
+ *  bfa_checksum.h BFA checksum utilities
+ */
+
+#ifndef __BFA_CHECKSUM_H__
+#define __BFA_CHECKSUM_H__
+
+static inline u32
+bfa_checksum_u32(u32 *buf, int sz)
+{
+	int		i, m = sz >> 2;
+	u32	sum = 0;
+
+	for (i = 0; i < m; i++)
+		sum ^= buf[i];
+
+	return (sum);
+}
+
+static inline u16
+bfa_checksum_u16(u16 *buf, int sz)
+{
+	int             i, m = sz >> 1;
+	u16        sum = 0;
+
+	for (i = 0; i < m; i++)
+		sum ^= buf[i];
+
+	return (sum);
+}
+
+static inline u8
+bfa_checksum_u8(u8 *buf, int sz)
+{
+	int             i;
+	u8         sum = 0;
+
+	for (i = 0; i < sz; i++)
+		sum ^= buf[i];
+
+	return (sum);
+}
+#endif