Adding upstream version 4.19.249.upstream/4.19.249

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 122 insertions, 0 deletions

diff --git a/drivers/net/ethernet/cavium/liquidio/octeon_mailbox.h b/drivers/net/ethernet/cavium/liquidio/octeon_mailbox.h
new file mode 100644
index 000000000..d92bd7e16
--- /dev/null
+++ b/drivers/net/ethernet/cavium/liquidio/octeon_mailbox.h
@@ -0,0 +1,122 @@
+/**********************************************************************
+ * Author: Cavium, Inc.
+ *
+ * Contact: support@cavium.com
+ *          Please include "LiquidIO" in the subject.
+ *
+ * Copyright (c) 2003-2016 Cavium, Inc.
+ *
+ * This file is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, Version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This file is distributed in the hope that it will be useful, but
+ * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
+ * NONINFRINGEMENT.  See the GNU General Public License for more details.
+ ***********************************************************************/
+#ifndef __MAILBOX_H__
+#define __MAILBOX_H__
+
+/* Macros for Mail Box Communication */
+
+#define OCTEON_MBOX_DATA_MAX		32
+
+#define OCTEON_VF_ACTIVE		0x1
+#define OCTEON_VF_FLR_REQUEST		0x2
+#define OCTEON_PF_CHANGED_VF_MACADDR	0x4
+#define OCTEON_GET_VF_STATS		0x8
+
+/*Macro for Read acknowldgement*/
+#define OCTEON_PFVFACK			0xffffffffffffffffULL
+#define OCTEON_PFVFSIG			0x1122334455667788ULL
+#define OCTEON_PFVFERR			0xDEADDEADDEADDEADULL
+
+#define LIO_MBOX_WRITE_WAIT_CNT         1000
+#define LIO_MBOX_WRITE_WAIT_TIME        msecs_to_jiffies(1)
+
+enum octeon_mbox_cmd_status {
+	OCTEON_MBOX_STATUS_SUCCESS = 0,
+	OCTEON_MBOX_STATUS_FAILED = 1,
+	OCTEON_MBOX_STATUS_BUSY = 2
+};
+
+enum octeon_mbox_message_type {
+	OCTEON_MBOX_REQUEST = 0,
+	OCTEON_MBOX_RESPONSE = 1
+};
+
+union octeon_mbox_message {
+	u64 u64;
+	struct {
+		u16 type : 1;
+		u16 resp_needed : 1;
+		u16 cmd : 6;
+		u16 len : 8;
+		u8 params[6];
+	} s;
+};
+
+typedef void (*octeon_mbox_callback_t)(void *, void *, void *);
+
+struct octeon_mbox_cmd {
+	union octeon_mbox_message msg;
+	u64 data[OCTEON_MBOX_DATA_MAX];
+	u32 q_no;
+	u32 recv_len;
+	u32 recv_status;
+	octeon_mbox_callback_t fn;
+	void *fn_arg;
+};
+
+enum octeon_mbox_state {
+	OCTEON_MBOX_STATE_IDLE = 1,
+	OCTEON_MBOX_STATE_REQUEST_RECEIVING = 2,
+	OCTEON_MBOX_STATE_REQUEST_RECEIVED = 4,
+	OCTEON_MBOX_STATE_RESPONSE_PENDING = 8,
+	OCTEON_MBOX_STATE_RESPONSE_RECEIVING = 16,
+	OCTEON_MBOX_STATE_RESPONSE_RECEIVED = 32,
+	OCTEON_MBOX_STATE_ERROR = 64
+};
+
+struct octeon_mbox {
+	/** A spinlock to protect access to this q_mbox. */
+	spinlock_t lock;
+
+	struct octeon_device *oct_dev;
+
+	u32 q_no;
+
+	enum octeon_mbox_state state;
+
+	struct cavium_wk mbox_poll_wk;
+
+	/** SLI_MAC_PF_MBOX_INT for PF, SLI_PKT_MBOX_INT for VF. */
+	void *mbox_int_reg;
+
+	/** SLI_PKT_PF_VF_MBOX_SIG(0) for PF, SLI_PKT_PF_VF_MBOX_SIG(1) for VF.
+	 */
+	void *mbox_write_reg;
+
+	/** SLI_PKT_PF_VF_MBOX_SIG(1) for PF, SLI_PKT_PF_VF_MBOX_SIG(0) for VF.
+	 */
+	void *mbox_read_reg;
+
+	struct octeon_mbox_cmd mbox_req;
+
+	struct octeon_mbox_cmd mbox_resp;
+
+};
+
+struct oct_vf_stats_ctx {
+	atomic_t status;
+	struct oct_vf_stats *stats;
+};
+
+int octeon_mbox_read(struct octeon_mbox *mbox);
+int octeon_mbox_write(struct octeon_device *oct,
+		      struct octeon_mbox_cmd *mbox_cmd);
+int octeon_mbox_process_message(struct octeon_mbox *mbox);
+int octeon_mbox_cancel(struct octeon_device *oct, int q_no);
+
+#endif