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12#ifndef CSS_H
13#define CSS_H
14
15#include "cpu.h"
16#include "hw/s390x/adapter.h"
17#include "hw/s390x/s390_flic.h"
18#include "hw/s390x/ioinst.h"
19
20
21#define MAX_DEVNO 65535
22#define MAX_SCHID 65535
23#define MAX_SSID 3
24#define MAX_CSSID 255
25#define MAX_CHPID 255
26
27#define MAX_ISC 7
28
29#define MAX_CIWS 62
30
31#define VIRTUAL_CSSID 0xfe
32#define VIRTIO_CCW_CHPID 0
33
34typedef struct CIW {
35 uint8_t type;
36 uint8_t command;
37 uint16_t count;
38} QEMU_PACKED CIW;
39
40typedef struct SenseId {
41
42 uint8_t reserved;
43 uint16_t cu_type;
44 uint8_t cu_model;
45 uint16_t dev_type;
46 uint8_t dev_model;
47 uint8_t unused;
48
49 CIW ciw[MAX_CIWS];
50} QEMU_PACKED SenseId;
51
52
53typedef struct CMB {
54 uint16_t ssch_rsch_count;
55 uint16_t sample_count;
56 uint32_t device_connect_time;
57 uint32_t function_pending_time;
58 uint32_t device_disconnect_time;
59 uint32_t control_unit_queuing_time;
60 uint32_t device_active_only_time;
61 uint32_t reserved[2];
62} QEMU_PACKED CMB;
63
64typedef struct CMBE {
65 uint32_t ssch_rsch_count;
66 uint32_t sample_count;
67 uint32_t device_connect_time;
68 uint32_t function_pending_time;
69 uint32_t device_disconnect_time;
70 uint32_t control_unit_queuing_time;
71 uint32_t device_active_only_time;
72 uint32_t device_busy_time;
73 uint32_t initial_command_response_time;
74 uint32_t reserved[7];
75} QEMU_PACKED CMBE;
76
77typedef struct SubchDev SubchDev;
78struct SubchDev {
79
80 uint8_t cssid;
81 uint8_t ssid;
82 uint16_t schid;
83 uint16_t devno;
84 SCHIB curr_status;
85 uint8_t sense_data[32];
86 hwaddr channel_prog;
87 CCW1 last_cmd;
88 bool last_cmd_valid;
89 bool ccw_fmt_1;
90 bool thinint_active;
91 uint8_t ccw_no_data_cnt;
92 uint16_t migrated_schid;
93 ORB orb;
94
95 int (*ccw_cb) (SubchDev *, CCW1);
96 void (*disable_cb)(SubchDev *);
97 int (*do_subchannel_work) (SubchDev *);
98 SenseId id;
99 void *driver_data;
100};
101
102extern const VMStateDescription vmstate_subch_dev;
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110typedef struct CssDevId {
111 uint8_t cssid;
112 uint8_t ssid;
113 uint16_t devid;
114 bool valid;
115} CssDevId;
116
117extern const PropertyInfo css_devid_propinfo;
118
119#define DEFINE_PROP_CSS_DEV_ID(_n, _s, _f) \
120 DEFINE_PROP(_n, _s, _f, css_devid_propinfo, CssDevId)
121
122typedef struct IndAddr {
123 hwaddr addr;
124 uint64_t map;
125 unsigned long refcnt;
126 int32_t len;
127 QTAILQ_ENTRY(IndAddr) sibling;
128} IndAddr;
129
130extern const VMStateDescription vmstate_ind_addr;
131
132#define VMSTATE_PTR_TO_IND_ADDR(_f, _s) \
133 VMSTATE_STRUCT(_f, _s, 1, vmstate_ind_addr, IndAddr*)
134
135IndAddr *get_indicator(hwaddr ind_addr, int len);
136void release_indicator(AdapterInfo *adapter, IndAddr *indicator);
137int map_indicator(AdapterInfo *adapter, IndAddr *indicator);
138
139typedef SubchDev *(*css_subch_cb_func)(uint8_t m, uint8_t cssid, uint8_t ssid,
140 uint16_t schid);
141int css_create_css_image(uint8_t cssid, bool default_image);
142bool css_devno_used(uint8_t cssid, uint8_t ssid, uint16_t devno);
143void css_subch_assign(uint8_t cssid, uint8_t ssid, uint16_t schid,
144 uint16_t devno, SubchDev *sch);
145void css_sch_build_virtual_schib(SubchDev *sch, uint8_t chpid, uint8_t type);
146int css_sch_build_schib(SubchDev *sch, CssDevId *dev_id);
147unsigned int css_find_free_chpid(uint8_t cssid);
148uint16_t css_build_subchannel_id(SubchDev *sch);
149void copy_scsw_to_guest(SCSW *dest, const SCSW *src);
150void css_inject_io_interrupt(SubchDev *sch);
151void css_reset(void);
152void css_reset_sch(SubchDev *sch);
153void css_queue_crw(uint8_t rsc, uint8_t erc, int chain, uint16_t rsid);
154void css_generate_sch_crws(uint8_t cssid, uint8_t ssid, uint16_t schid,
155 int hotplugged, int add);
156void css_generate_chp_crws(uint8_t cssid, uint8_t chpid);
157void css_generate_css_crws(uint8_t cssid);
158void css_clear_sei_pending(void);
159int s390_ccw_cmd_request(ORB *orb, SCSW *scsw, void *data);
160int do_subchannel_work_virtual(SubchDev *sub);
161int do_subchannel_work_passthrough(SubchDev *sub);
162
163typedef enum {
164 CSS_IO_ADAPTER_VIRTIO = 0,
165 CSS_IO_ADAPTER_PCI = 1,
166 CSS_IO_ADAPTER_TYPE_NUMS,
167} CssIoAdapterType;
168
169void css_adapter_interrupt(CssIoAdapterType type, uint8_t isc);
170int css_do_sic(CPUS390XState *env, uint8_t isc, uint16_t mode);
171uint32_t css_get_adapter_id(CssIoAdapterType type, uint8_t isc);
172void css_register_io_adapters(CssIoAdapterType type, bool swap, bool maskable,
173 uint8_t flags, Error **errp);
174
175#ifndef CONFIG_KVM
176#define S390_ADAPTER_SUPPRESSIBLE 0x01
177#else
178#define S390_ADAPTER_SUPPRESSIBLE KVM_S390_ADAPTER_SUPPRESSIBLE
179#endif
180
181#ifndef CONFIG_USER_ONLY
182SubchDev *css_find_subch(uint8_t m, uint8_t cssid, uint8_t ssid,
183 uint16_t schid);
184bool css_subch_visible(SubchDev *sch);
185void css_conditional_io_interrupt(SubchDev *sch);
186int css_do_stsch(SubchDev *sch, SCHIB *schib);
187bool css_schid_final(int m, uint8_t cssid, uint8_t ssid, uint16_t schid);
188int css_do_msch(SubchDev *sch, const SCHIB *schib);
189int css_do_xsch(SubchDev *sch);
190int css_do_csch(SubchDev *sch);
191int css_do_hsch(SubchDev *sch);
192int css_do_ssch(SubchDev *sch, ORB *orb);
193int css_do_tsch_get_irb(SubchDev *sch, IRB *irb, int *irb_len);
194void css_do_tsch_update_subch(SubchDev *sch);
195int css_do_stcrw(CRW *crw);
196void css_undo_stcrw(CRW *crw);
197int css_do_tpi(IOIntCode *int_code, int lowcore);
198int css_collect_chp_desc(int m, uint8_t cssid, uint8_t f_chpid, uint8_t l_chpid,
199 int rfmt, void *buf);
200void css_do_schm(uint8_t mbk, int update, int dct, uint64_t mbo);
201int css_enable_mcsse(void);
202int css_enable_mss(void);
203int css_do_rsch(SubchDev *sch);
204int css_do_rchp(uint8_t cssid, uint8_t chpid);
205bool css_present(uint8_t cssid);
206#endif
207
208extern const PropertyInfo css_devid_ro_propinfo;
209
210#define DEFINE_PROP_CSS_DEV_ID_RO(_n, _s, _f) \
211 DEFINE_PROP(_n, _s, _f, css_devid_ro_propinfo, CssDevId)
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235SubchDev *css_create_sch(CssDevId bus_id, bool is_virtual, bool squash_mcss,
236 Error **errp);
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239void css_register_vmstate(void);
240
241#endif
242