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hw/cxl/events: Add event interrupt support

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Replace the stubbed out CXL Get/Set Event interrupt policy mailbox
commands.  Enable those commands to control interrupts for each of the
event log types.

Skip the standard input mailbox length on the Set command due to DCD
being optional.  Perform the checks separately.

Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Fan Ni <fan.ni@samsung.com>
Reviewed-by: Davidlohr Bueso <dave@stgolabs.net>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Message-Id: <20230530133603.16934-5-Jonathan.Cameron@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Ira Weiny 2023-05-30 14:36:00 +01:00 • committed by Michael S. Tsirkin
parent 22d7e3be07
commit 6676bb973b
5 changed files with 147 additions and 25 deletions
Download patch file Download diff file Expand all files Collapse all files

6
include/hw/cxl/cxl_device.h
View file

@ -121,6 +121,8 @@ typedef struct CXLEventLog {
uint16_t overflow_err_count;
uint64_t first_overflow_timestamp;
uint64_t last_overflow_timestamp;
bool irq_enabled;
int irq_vec;
QemuMutex lock;
QSIMPLEQ_HEAD(, CXLEvent) events;
} CXLEventLog;
@ -369,7 +371,7 @@ MemTxResult cxl_type3_write(PCIDevice *d, hwaddr host_addr, uint64_t data,
uint64_t cxl_device_get_timestamp(CXLDeviceState *cxlds);
void cxl_event_init(CXLDeviceState *cxlds);
void cxl_event_init(CXLDeviceState *cxlds, int start_msg_num);
bool cxl_event_insert(CXLDeviceState *cxlds, CXLEventLogType log_type,
CXLEventRecordRaw *event);
CXLRetCode cxl_event_get_records(CXLDeviceState *cxlds, CXLGetEventPayload *pl,
@ -378,6 +380,8 @@ CXLRetCode cxl_event_get_records(CXLDeviceState *cxlds, CXLGetEventPayload *pl,
CXLRetCode cxl_event_clear_records(CXLDeviceState *cxlds,
CXLClearEventPayload *pl);
void cxl_event_irq_assert(CXLType3Dev *ct3d);
void cxl_set_poison_list_overflowed(CXLType3Dev *ct3d);
#endif

23
include/hw/cxl/cxl_events.h
View file

@ -80,4 +80,27 @@ typedef struct CXLClearEventPayload {
uint16_t handle[];
} CXLClearEventPayload;
/**
* Event Interrupt Policy
*
* CXL rev 3.0 section 8.2.9.2.4; Table 8-52
*/
typedef enum CXLEventIntMode {
CXL_INT_NONE = 0x00,
CXL_INT_MSI_MSIX = 0x01,
CXL_INT_FW = 0x02,
CXL_INT_RES = 0x03,
} CXLEventIntMode;
#define CXL_EVENT_INT_MODE_MASK 0x3
#define CXL_EVENT_INT_SETTING(vector) ((((uint8_t)vector & 0xf) << 4) | CXL_INT_MSI_MSIX)
typedef struct CXLEventInterruptPolicy {
uint8_t info_settings;
uint8_t warn_settings;
uint8_t failure_settings;
uint8_t fatal_settings;
uint8_t dyn_cap_settings;
} QEMU_PACKED CXLEventInterruptPolicy;
/* DCD is optional but other fields are not */
#define CXL_EVENT_INT_SETTING_MIN_LEN 4
#endif /* CXL_EVENTS_H */