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pcie port: define struct PCIEPort/PCIESlot and helper functions

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define struct PCIEPort which represents common part
of pci express port.(root, upstream and downstream.)
add a helper function for pcie port which can be used commonly by
root/upstream/downstream port.
define struct PCIESlot which represents common part of
pcie slot.(root and downstream.) and helper functions for it.
helper functions for chassis, slot -> PCIESlot conversion.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Isaku Yamahata 2010-10-20 17:18:52 +09:00 • committed by Michael S. Tsirkin
parent 0208def1ca
commit bc20ba98b1
4 changed files with 170 additions and 1 deletions
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51
hw/pcie_port.h Normal file
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/*
* pcie_port.h
*
* Copyright (c) 2010 Isaku Yamahata <yamahata at valinux co jp>
* VA Linux Systems Japan K.K.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#ifndef QEMU_PCIE_PORT_H
#define QEMU_PCIE_PORT_H
#include "pci_bridge.h"
#include "pci_internals.h"
struct PCIEPort {
PCIBridge br;
/* pci express switch port */
uint8_t port;
};
void pcie_port_init_reg(PCIDevice *d);
struct PCIESlot {
PCIEPort port;
/* pci express switch port with slot */
uint8_t chassis;
uint16_t slot;
QLIST_ENTRY(PCIESlot) next;
};
void pcie_chassis_create(uint8_t chassis_number);
void pcie_main_chassis_create(void);
PCIESlot *pcie_chassis_find_slot(uint8_t chassis, uint16_t slot);
int pcie_chassis_add_slot(struct PCIESlot *slot);
void pcie_chassis_del_slot(PCIESlot *s);
#endif /* QEMU_PCIE_PORT_H */