1 /**********************************************************************
4 * Contact: support@cavium.com
5 * Please include "LiquidIO" in the subject.
7 * Copyright (c) 2003-2016 Cavium, Inc.
9 * This file is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License, Version 2, as
11 * published by the Free Software Foundation.
13 * This file is distributed in the hope that it will be useful, but
14 * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
15 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
16 * NONINFRINGEMENT. See the GNU General Public License for more details.
17 ***********************************************************************/
21 /* Macros for Mail Box Communication */
23 #define OCTEON_MBOX_DATA_MAX 32
25 #define OCTEON_VF_ACTIVE 0x1
26 #define OCTEON_VF_FLR_REQUEST 0x2
27 #define OCTEON_PF_CHANGED_VF_MACADDR 0x4
29 /*Macro for Read acknowldgement*/
30 #define OCTEON_PFVFACK 0xffffffffffffffffULL
31 #define OCTEON_PFVFSIG 0x1122334455667788ULL
32 #define OCTEON_PFVFERR 0xDEADDEADDEADDEADULL
34 #define LIO_MBOX_WRITE_WAIT_CNT 1000
35 #define LIO_MBOX_WRITE_WAIT_TIME msecs_to_jiffies(1)
37 enum octeon_mbox_cmd_status {
38 OCTEON_MBOX_STATUS_SUCCESS = 0,
39 OCTEON_MBOX_STATUS_FAILED = 1,
40 OCTEON_MBOX_STATUS_BUSY = 2
43 enum octeon_mbox_message_type {
44 OCTEON_MBOX_REQUEST = 0,
45 OCTEON_MBOX_RESPONSE = 1
48 union octeon_mbox_message {
59 typedef void (*octeon_mbox_callback_t)(void *, void *, void *);
61 struct octeon_mbox_cmd {
62 union octeon_mbox_message msg;
63 u64 data[OCTEON_MBOX_DATA_MAX];
67 octeon_mbox_callback_t fn;
71 enum octeon_mbox_state {
72 OCTEON_MBOX_STATE_IDLE = 1,
73 OCTEON_MBOX_STATE_REQUEST_RECEIVING = 2,
74 OCTEON_MBOX_STATE_REQUEST_RECEIVED = 4,
75 OCTEON_MBOX_STATE_RESPONSE_PENDING = 8,
76 OCTEON_MBOX_STATE_RESPONSE_RECEIVING = 16,
77 OCTEON_MBOX_STATE_RESPONSE_RECEIVED = 32,
78 OCTEON_MBOX_STATE_ERROR = 64
82 /** A spinlock to protect access to this q_mbox. */
85 struct octeon_device *oct_dev;
89 enum octeon_mbox_state state;
91 struct cavium_wk mbox_poll_wk;
93 /** SLI_MAC_PF_MBOX_INT for PF, SLI_PKT_MBOX_INT for VF. */
96 /** SLI_PKT_PF_VF_MBOX_SIG(0) for PF, SLI_PKT_PF_VF_MBOX_SIG(1) for VF.
100 /** SLI_PKT_PF_VF_MBOX_SIG(1) for PF, SLI_PKT_PF_VF_MBOX_SIG(0) for VF.
104 struct octeon_mbox_cmd mbox_req;
106 struct octeon_mbox_cmd mbox_resp;
110 int octeon_mbox_read(struct octeon_mbox *mbox);
111 int octeon_mbox_write(struct octeon_device *oct,
112 struct octeon_mbox_cmd *mbox_cmd);
113 int octeon_mbox_process_message(struct octeon_mbox *mbox);