ice: Add support for control queues

A control queue is a hardware interface which is used by the driver
to interact with other subsystems (like firmware, PHY, etc.). It is
implemented as a producer-consumer ring. More specifically, an
"admin queue" is a type of control queue used to interact with the
firmware.

This patch introduces data structures and functions to initialize
and teardown control/admin queues. Once the admin queue is initialized,
the driver uses it to get the firmware version.

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

1 files changed, 21 insertions, 0 deletions

diff --git a/drivers/net/ethernet/intel/ice/ice_status.h b/drivers/net/ethernet/intel/ice/ice_status.h
new file mode 100644
index 000000000000..978c6dff3c71
--- /dev/null
+++ b/drivers/net/ethernet/intel/ice/ice_status.h
@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2018, Intel Corporation. */
+
+#ifndef _ICE_STATUS_H_
+#define _ICE_STATUS_H_
+
+/* Error Codes */
+enum ice_status {
+	ICE_ERR_PARAM				= -1,
+	ICE_ERR_NOT_READY			= -3,
+	ICE_ERR_INVAL_SIZE			= -6,
+	ICE_ERR_FW_API_VER			= -10,
+	ICE_ERR_NO_MEMORY			= -11,
+	ICE_ERR_CFG				= -12,
+	ICE_ERR_AQ_ERROR			= -100,
+	ICE_ERR_AQ_TIMEOUT			= -101,
+	ICE_ERR_AQ_FULL				= -102,
+	ICE_ERR_AQ_EMPTY			= -104,
+};
+
+#endif /* _ICE_STATUS_H_ */