IB/usnic: Add Cisco VIC low-level hardware driver

This adds a driver that allows userspace to use UD-like QPs over a
proprietary Cisco transport with Cisco's Virtual Interface Cards (VICs),
including VIC 1240 and 1280 cards.

Signed-off-by: Upinder Malhi <umalhi@cisco.com>
Signed-off-by: Christian Benvenuti <benve@cisco.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>

1 files changed, 58 insertions, 0 deletions

diff --git a/drivers/infiniband/hw/usnic/usnic_log.h b/drivers/infiniband/hw/usnic/usnic_log.h
new file mode 100644
index 0000000..75777a6
--- /dev/null
+++ b/drivers/infiniband/hw/usnic/usnic_log.h
@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved.
+ *
+ * This program is free software; you may redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ */
+
+#ifndef USNIC_LOG_H_
+#define USNIC_LOG_H_
+
+#include "usnic.h"
+
+extern unsigned int usnic_log_lvl;
+
+#define USNIC_LOG_LVL_NONE		(0)
+#define USNIC_LOG_LVL_ERR		(1)
+#define USNIC_LOG_LVL_INFO		(2)
+#define USNIC_LOG_LVL_DBG		(3)
+
+#define usnic_printk(lvl, args...) \
+	do { \
+		printk(lvl "%s:%s:%d: ", DRV_NAME, __func__, \
+				__LINE__); \
+		printk(args); \
+	} while (0)
+
+#define usnic_dbg(args...) \
+	do { \
+		if (unlikely(usnic_log_lvl >= USNIC_LOG_LVL_DBG)) { \
+			usnic_printk(KERN_INFO, args); \
+	} \
+} while (0)
+
+#define usnic_info(args...) \
+do { \
+	if (usnic_log_lvl >= USNIC_LOG_LVL_INFO) { \
+			usnic_printk(KERN_INFO, args); \
+	} \
+} while (0)
+
+#define usnic_err(args...) \
+	do { \
+		if (usnic_log_lvl >= USNIC_LOG_LVL_ERR) { \
+			usnic_printk(KERN_ERR, args); \
+		} \
+	} while (0)
+#endif /* !USNIC_LOG_H_ */