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  • Committer: Phil Dennis-Jordan
  • Date: 2017-07-21 08:03:43 UTC
  • mfrom: (1.1.1)
  • Revision ID: phil@philjordan.eu-20170721080343-2yr2vdj7713czahv
New upstream release 2.9.0.

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roms/SLOF/lib/libvirtio/p9.h
 
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/******************************************************************************
 
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 * Copyright (c) 2011 IBM Corporation
 
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 * All rights reserved.
 
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 * This program and the accompanying materials
 
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 * are made available under the terms of the BSD License
 
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 * which accompanies this distribution, and is available at
 
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 * http://www.opensource.org/licenses/bsd-license.php
 
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 *
 
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 * Contributors:
 
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 *     IBM Corporation - initial implementation
 
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 *****************************************************************************/
 
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#ifndef P9_H
 
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#define P9_H
 
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#include <stdint.h>
 
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#define P9_ERROR                        -1
 
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#define P9_UNKNOWN_VERSION              -2
 
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#define P9_R_ERROR                      -3
 
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#define P9_MSG_TOO_LONG                 -4
 
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#define P9_UNEXPECTED_MSG               -5
 
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#define P9_UNEXPECTED_TAG               -6
 
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#define P9_TRANSPORT_ERROR              -7
 
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#define P9_NO_TRANSPORT                 -8
 
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#define P9_NULL_PATH                    -9
 
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#define P9_PATH_ELEMENT_TOO_LONG        -10
 
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#define P9_READ_UNEXPECTED_DATA         -11
 
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#define P9_NO_BUFFER                    -12
 
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#define P9_MSG_SIZE_TOO_BIG             -13
 
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#define P9_PARTIAL_WALK                 1
 
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typedef int (*p9_transact_t)(void *opaque, uint8_t *tx, int tx_size,
 
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                uint8_t *rx, uint32_t *rx_size);
 
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typedef struct {
 
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        uint32_t message_size;
 
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        char *uname;            /* User name. */
 
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        char *aname;            /* Tree/mount name/path. */
 
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        uint32_t fid;           /* Represents mount point. */
 
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} p9_connection_t;
 
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typedef struct {
 
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        uint32_t fid;           /* Identifies the file to P9 server. */
 
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        uint32_t iounit;        /* Maximum read size in bytes. */
 
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        uint8_t type;           /* Type of file. */
 
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        uint64_t length;        /* Length of file. */
 
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        p9_connection_t *connection;
 
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} p9_file_t;
 
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void reset_buffers(void);
 
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void p9_reg_transport(p9_transact_t transact_func, void *opaque,
 
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                      uint8_t *tx_buffer, uint8_t *rx_buffer);
 
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int p9_transaction(p9_connection_t *connection);
 
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int p9_version(p9_connection_t *connection);
 
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int p9_attach(p9_connection_t *connection);
 
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int p9_clunk(p9_connection_t *connection, uint32_t fid);
 
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int p9_walk(p9_connection_t *connection, uint32_t fid, uint32_t new_fid,
 
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                uint8_t **pos);
 
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int p9_open(p9_file_t *file, uint8_t mode);
 
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int p9_read(p9_file_t *file, uint8_t *buffer,
 
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                uint32_t count, uint64_t offset);
 
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int p9_stat(p9_file_t *file);
 
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#endif