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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 | /********************************************************************** * 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 /*Macro for Read acknowldgement*/ #define OCTEON_PFVFACK 0xffffffffffffffff #define OCTEON_PFVFSIG 0x1122334455667788 #define OCTEON_PFVFERR 0xDEADDEADDEADDEAD #define LIO_MBOX_WRITE_WAIT_CNT 1000 #define LIO_MBOX_WRITE_WAIT_TIME 10 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 = 16, OCTEON_MBOX_STATE_ERROR = 32 }; 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; }; 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); #endif |