mirror of
https://github.com/xemu-project/xemu.git
synced 2024-11-24 20:19:44 +00:00
a28d8391e3
Currently, virtio-ccw uses its own interfaces to keep indicators mapped just once even if the same address has been registered multiple times. These interfaces fit the PCI use case as well. Therefore, move them to css and make them generic interfaces. Signed-off-by: Yi Min Zhao <zyimin@linux.vnet.ibm.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
127 lines
3.8 KiB
C
127 lines
3.8 KiB
C
/*
|
|
* Channel subsystem structures and definitions.
|
|
*
|
|
* Copyright 2012 IBM Corp.
|
|
* Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
|
|
*
|
|
* This work is licensed under the terms of the GNU GPL, version 2 or (at
|
|
* your option) any later version. See the COPYING file in the top-level
|
|
* directory.
|
|
*/
|
|
|
|
#ifndef CSS_H
|
|
#define CSS_H
|
|
|
|
#include "hw/s390x/adapter.h"
|
|
#include "hw/s390x/s390_flic.h"
|
|
#include "ioinst.h"
|
|
|
|
/* Channel subsystem constants. */
|
|
#define MAX_SCHID 65535
|
|
#define MAX_SSID 3
|
|
#define MAX_CSSID 254 /* 255 is reserved */
|
|
#define MAX_CHPID 255
|
|
|
|
#define MAX_CIWS 62
|
|
|
|
typedef struct CIW {
|
|
uint8_t type;
|
|
uint8_t command;
|
|
uint16_t count;
|
|
} QEMU_PACKED CIW;
|
|
|
|
typedef struct SenseId {
|
|
/* common part */
|
|
uint8_t reserved; /* always 0x'FF' */
|
|
uint16_t cu_type; /* control unit type */
|
|
uint8_t cu_model; /* control unit model */
|
|
uint16_t dev_type; /* device type */
|
|
uint8_t dev_model; /* device model */
|
|
uint8_t unused; /* padding byte */
|
|
/* extended part */
|
|
CIW ciw[MAX_CIWS]; /* variable # of CIWs */
|
|
} QEMU_PACKED SenseId;
|
|
|
|
/* Channel measurements, from linux/drivers/s390/cio/cmf.c. */
|
|
typedef struct CMB {
|
|
uint16_t ssch_rsch_count;
|
|
uint16_t sample_count;
|
|
uint32_t device_connect_time;
|
|
uint32_t function_pending_time;
|
|
uint32_t device_disconnect_time;
|
|
uint32_t control_unit_queuing_time;
|
|
uint32_t device_active_only_time;
|
|
uint32_t reserved[2];
|
|
} QEMU_PACKED CMB;
|
|
|
|
typedef struct CMBE {
|
|
uint32_t ssch_rsch_count;
|
|
uint32_t sample_count;
|
|
uint32_t device_connect_time;
|
|
uint32_t function_pending_time;
|
|
uint32_t device_disconnect_time;
|
|
uint32_t control_unit_queuing_time;
|
|
uint32_t device_active_only_time;
|
|
uint32_t device_busy_time;
|
|
uint32_t initial_command_response_time;
|
|
uint32_t reserved[7];
|
|
} QEMU_PACKED CMBE;
|
|
|
|
struct SubchDev {
|
|
/* channel-subsystem related things: */
|
|
uint8_t cssid;
|
|
uint8_t ssid;
|
|
uint16_t schid;
|
|
uint16_t devno;
|
|
SCHIB curr_status;
|
|
uint8_t sense_data[32];
|
|
hwaddr channel_prog;
|
|
CCW1 last_cmd;
|
|
bool last_cmd_valid;
|
|
bool ccw_fmt_1;
|
|
bool thinint_active;
|
|
uint8_t ccw_no_data_cnt;
|
|
/* transport-provided data: */
|
|
int (*ccw_cb) (SubchDev *, CCW1);
|
|
void (*disable_cb)(SubchDev *);
|
|
SenseId id;
|
|
void *driver_data;
|
|
};
|
|
|
|
typedef struct IndAddr {
|
|
hwaddr addr;
|
|
uint64_t map;
|
|
unsigned long refcnt;
|
|
int len;
|
|
QTAILQ_ENTRY(IndAddr) sibling;
|
|
} IndAddr;
|
|
|
|
IndAddr *get_indicator(hwaddr ind_addr, int len);
|
|
void release_indicator(AdapterInfo *adapter, IndAddr *indicator);
|
|
int map_indicator(AdapterInfo *adapter, IndAddr *indicator);
|
|
|
|
typedef SubchDev *(*css_subch_cb_func)(uint8_t m, uint8_t cssid, uint8_t ssid,
|
|
uint16_t schid);
|
|
void subch_device_save(SubchDev *s, QEMUFile *f);
|
|
int subch_device_load(SubchDev *s, QEMUFile *f);
|
|
int css_create_css_image(uint8_t cssid, bool default_image);
|
|
bool css_devno_used(uint8_t cssid, uint8_t ssid, uint16_t devno);
|
|
void css_subch_assign(uint8_t cssid, uint8_t ssid, uint16_t schid,
|
|
uint16_t devno, SubchDev *sch);
|
|
void css_sch_build_virtual_schib(SubchDev *sch, uint8_t chpid, uint8_t type);
|
|
uint16_t css_build_subchannel_id(SubchDev *sch);
|
|
void css_reset(void);
|
|
void css_reset_sch(SubchDev *sch);
|
|
void css_queue_crw(uint8_t rsc, uint8_t erc, int chain, uint16_t rsid);
|
|
void css_generate_sch_crws(uint8_t cssid, uint8_t ssid, uint16_t schid,
|
|
int hotplugged, int add);
|
|
void css_generate_chp_crws(uint8_t cssid, uint8_t chpid);
|
|
void css_generate_css_crws(uint8_t cssid);
|
|
void css_clear_sei_pending(void);
|
|
void css_adapter_interrupt(uint8_t isc);
|
|
|
|
#define CSS_IO_ADAPTER_VIRTIO 1
|
|
int css_register_io_adapter(uint8_t type, uint8_t isc, bool swap,
|
|
bool maskable, uint32_t *id);
|
|
#endif
|