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