projects / qemu.git / blame
| Commit | Line | Data |
|---|---|---|
| df1fe5bb CH |
1 | /* |
| 2 | * Channel subsystem structures and definitions. | |
| 3 | * | |
| 4 | * Copyright 2012 IBM Corp. | |
| 5 | * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com> | |
| 6 | * | |
| 7 | * This work is licensed under the terms of the GNU GPL, version 2 or (at | |
| 8 | * your option) any later version. See the COPYING file in the top-level | |
| 9 | * directory. | |
| 10 | */ | |
| 11 | ||
| 12 | #ifndef CSS_H | |
| 13 | #define CSS_H | |
| 14 | ||
| 15 | #include "ioinst.h" | |
| 16 | ||
| 17 | /* Channel subsystem constants. */ | |
| 18 | #define MAX_SCHID 65535 | |
| 19 | #define MAX_SSID 3 | |
| 20 | #define MAX_CSSID 254 /* 255 is reserved */ | |
| 21 | #define MAX_CHPID 255 | |
| 22 | ||
| 23 | #define MAX_CIWS 62 | |
| 24 | ||
| 25 | typedef struct CIW { | |
| 26 | uint8_t type; | |
| 27 | uint8_t command; | |
| 28 | uint16_t count; | |
| 29 | } QEMU_PACKED CIW; | |
| 30 | ||
| 31 | typedef struct SenseId { | |
| 32 | /* common part */ | |
| 33 | uint8_t reserved; /* always 0x'FF' */ | |
| 34 | uint16_t cu_type; /* control unit type */ | |
| 35 | uint8_t cu_model; /* control unit model */ | |
| 36 | uint16_t dev_type; /* device type */ | |
| 37 | uint8_t dev_model; /* device model */ | |
| 38 | uint8_t unused; /* padding byte */ | |
| 39 | /* extended part */ | |
| 40 | CIW ciw[MAX_CIWS]; /* variable # of CIWs */ | |
| 41 | } QEMU_PACKED SenseId; | |
| 42 | ||
| 43 | /* Channel measurements, from linux/drivers/s390/cio/cmf.c. */ | |
| 44 | typedef struct CMB { | |
| 45 | uint16_t ssch_rsch_count; | |
| 46 | uint16_t sample_count; | |
| 47 | uint32_t device_connect_time; | |
| 48 | uint32_t function_pending_time; | |
| 49 | uint32_t device_disconnect_time; | |
| 50 | uint32_t control_unit_queuing_time; | |
| 51 | uint32_t device_active_only_time; | |
| 52 | uint32_t reserved[2]; | |
| 53 | } QEMU_PACKED CMB; | |
| 54 | ||
| 55 | typedef struct CMBE { | |
| 56 | uint32_t ssch_rsch_count; | |
| 57 | uint32_t sample_count; | |
| 58 | uint32_t device_connect_time; | |
| 59 | uint32_t function_pending_time; | |
| 60 | uint32_t device_disconnect_time; | |
| 61 | uint32_t control_unit_queuing_time; | |
| 62 | uint32_t device_active_only_time; | |
| 63 | uint32_t device_busy_time; | |
| 64 | uint32_t initial_command_response_time; | |
| 65 | uint32_t reserved[7]; | |
| 66 | } QEMU_PACKED CMBE; | |
| 67 | ||
| 68 | struct SubchDev { | |
| 69 | /* channel-subsystem related things: */ | |
| 70 | uint8_t cssid; | |
| 71 | uint8_t ssid; | |
| 72 | uint16_t schid; | |
| 73 | uint16_t devno; | |
| 74 | SCHIB curr_status; | |
| 75 | uint8_t sense_data[32]; | |
| 76 | hwaddr channel_prog; | |
| 77 | CCW1 last_cmd; | |
| 78 | bool last_cmd_valid; | |
| 79 | ORB *orb; | |
| 80 | /* transport-provided data: */ | |
| 81 | int (*ccw_cb) (SubchDev *, CCW1); | |
| 82 | SenseId id; | |
| 83 | void *driver_data; | |
| 84 | }; | |
| 85 | ||
| 86 | typedef SubchDev *(*css_subch_cb_func)(uint8_t m, uint8_t cssid, uint8_t ssid, | |
| 87 | uint16_t schid); | |
| 88 | int css_create_css_image(uint8_t cssid, bool default_image); | |
| 89 | bool css_devno_used(uint8_t cssid, uint8_t ssid, uint16_t devno); | |
| 90 | void css_subch_assign(uint8_t cssid, uint8_t ssid, uint16_t schid, | |
| 91 | uint16_t devno, SubchDev *sch); | |
| 92 | void css_sch_build_virtual_schib(SubchDev *sch, uint8_t chpid, uint8_t type); | |
| b4436a0b | 93 | uint16_t css_build_subchannel_id(SubchDev *sch); |
| df1fe5bb CH |
94 | void css_reset(void); |
| 95 | void css_reset_sch(SubchDev *sch); | |
| 96 | void css_queue_crw(uint8_t rsc, uint8_t erc, int chain, uint16_t rsid); | |
| 97 | void css_generate_sch_crws(uint8_t cssid, uint8_t ssid, uint16_t schid, | |
| 98 | int hotplugged, int add); | |
| 99 | void css_generate_chp_crws(uint8_t cssid, uint8_t chpid); | |
| 100 | #endif |