From: Ira Weiny <ira.we...@intel.com>
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.
Signed-off-by: Ira Weiny <ira.we...@intel.com>
---
hw/cxl/cxl-mailbox-utils.c | 129 ++++++++++++++++++++++++++++++------
include/hw/cxl/cxl_events.h | 21 ++++++
2 files changed, 129 insertions(+), 21 deletions(-)
diff --git a/hw/cxl/cxl-mailbox-utils.c b/hw/cxl/cxl-mailbox-utils.c
index df345f23a30c..52e8804c24ed 100644
--- a/hw/cxl/cxl-mailbox-utils.c
+++ b/hw/cxl/cxl-mailbox-utils.c
@@ -101,25 +101,6 @@ struct cxl_cmd {
uint8_t *payload;
};
-#define DEFINE_MAILBOX_HANDLER_ZEROED(name, size) \
- uint16_t __zero##name = size; \
- static ret_code cmd_##name(struct cxl_cmd *cmd, \
- CXLDeviceState *cxl_dstate, uint16_t *len) \
- { \
- *len = __zero##name; \
- memset(cmd->payload, 0, *len); \
- return CXL_MBOX_SUCCESS; \
- }
-#define DEFINE_MAILBOX_HANDLER_NOP(name) \
- static ret_code cmd_##name(struct cxl_cmd *cmd, \
- CXLDeviceState *cxl_dstate, uint16_t *len) \
- { \
- return CXL_MBOX_SUCCESS; \
- }
-
-DEFINE_MAILBOX_HANDLER_ZEROED(events_get_interrupt_policy, 4);
-DEFINE_MAILBOX_HANDLER_NOP(events_set_interrupt_policy);
-
static ret_code cmd_events_get_records(struct cxl_cmd *cmd,
CXLDeviceState *cxlds,
uint16_t *len)
@@ -218,6 +199,110 @@ static ret_code cmd_events_clear_records(struct cxl_cmd
*cmd,
return CXL_MBOX_SUCCESS;
}
+static ret_code cmd_events_get_interrupt_policy(struct cxl_cmd *cmd,
+ CXLDeviceState *cxl_dstate,
+ uint16_t *len)
+{
+ struct cxl_event_interrupt_policy *policy;
+ struct cxl_event_log *log;
+
+ policy = (struct cxl_event_interrupt_policy *)cmd->payload;
+ memset(policy, 0, sizeof(*policy));
+
+ log = find_event_log(cxl_dstate, CXL_EVENT_TYPE_INFO);
+ if (log->irq_enabled) {
+ policy->info_settings = CXL_EVENT_INT_SETTING(log->irq_vec);
+ }
+
+ log = find_event_log(cxl_dstate, CXL_EVENT_TYPE_WARN);
+ if (log->irq_enabled) {
+ policy->warn_settings = CXL_EVENT_INT_SETTING(log->irq_vec);
+ }
+
+ log = find_event_log(cxl_dstate, CXL_EVENT_TYPE_FAIL);
+ if (log->irq_enabled) {
+ policy->failure_settings = CXL_EVENT_INT_SETTING(log->irq_vec);
+ }
+
+ log = find_event_log(cxl_dstate, CXL_EVENT_TYPE_FATAL);
+ if (log->irq_enabled) {
+ policy->fatal_settings = CXL_EVENT_INT_SETTING(log->irq_vec);
+ }
+
+ log = find_event_log(cxl_dstate, CXL_EVENT_TYPE_DYNAMIC_CAP);
+ if (log->irq_enabled) {
+ /* Dynamic Capacity borrows the same vector as info */
+ policy->dyn_cap_settings = CXL_INT_MSI_MSIX;
+ }
+
+ *len = sizeof(*policy);
+ return CXL_MBOX_SUCCESS;
+}
+
+static ret_code cmd_events_set_interrupt_policy(struct cxl_cmd *cmd,
+ CXLDeviceState *cxl_dstate,
+ uint16_t *len)
+{
+ struct cxl_event_interrupt_policy *policy;
+ struct cxl_event_log *log;
+
+ policy = (struct cxl_event_interrupt_policy *)cmd->payload;
+
+ log = find_event_log(cxl_dstate, CXL_EVENT_TYPE_INFO);
+ if ((policy->info_settings & CXL_EVENT_INT_MODE_MASK) ==
+ CXL_INT_MSI_MSIX) {
+ log->irq_enabled = true;
+ log->irq_vec = cxl_dstate->event_vector[CXL_EVENT_TYPE_INFO];
+ } else {
+ log->irq_enabled = false;
+ log->irq_vec = 0;
+ }
+
+ log = find_event_log(cxl_dstate, CXL_EVENT_TYPE_WARN);
+ if ((policy->warn_settings & CXL_EVENT_INT_MODE_MASK) ==
+ CXL_INT_MSI_MSIX) {
+ log->irq_enabled = true;
+ log->irq_vec = cxl_dstate->event_vector[CXL_EVENT_TYPE_WARN];
+ } else {
+ log->irq_enabled = false;
+ log->irq_vec = 0;
+ }
+
+ log = find_event_log(cxl_dstate, CXL_EVENT_TYPE_FAIL);
+ if ((policy->failure_settings & CXL_EVENT_INT_MODE_MASK) ==
+ CXL_INT_MSI_MSIX) {
+ log->irq_enabled = true;
+ log->irq_vec = cxl_dstate->event_vector[CXL_EVENT_TYPE_FAIL];
+ } else {
+ log->irq_enabled = false;
+ log->irq_vec = 0;
+ }
+
+ log = find_event_log(cxl_dstate, CXL_EVENT_TYPE_FATAL);
+ if ((policy->fatal_settings & CXL_EVENT_INT_MODE_MASK) ==
+ CXL_INT_MSI_MSIX) {
+ log->irq_enabled = true;
+ log->irq_vec = cxl_dstate->event_vector[CXL_EVENT_TYPE_FATAL];
+ } else {
+ log->irq_enabled = false;
+ log->irq_vec = 0;
+ }
+
+ log = find_event_log(cxl_dstate, CXL_EVENT_TYPE_DYNAMIC_CAP);
+ if ((policy->dyn_cap_settings & CXL_EVENT_INT_MODE_MASK) ==
+ CXL_INT_MSI_MSIX) {
+ log->irq_enabled = true;
+ /* Dynamic Capacity borrows the same vector as info */
+ log->irq_vec = cxl_dstate->event_vector[CXL_EVENT_TYPE_INFO];
+ } else {
+ log->irq_enabled = false;
+ log->irq_vec = 0;
+ }
+
+ *len = sizeof(*policy);
+ return CXL_MBOX_SUCCESS;
+}
+
/* 8.2.9.2.1 */
static ret_code cmd_firmware_update_get_info(struct cxl_cmd *cmd,
CXLDeviceState *cxl_dstate,
@@ -490,9 +575,11 @@ static struct cxl_cmd cxl_cmd_set[256][256] = {
[EVENTS][CLEAR_RECORDS] = { "EVENTS_CLEAR_RECORDS",
cmd_events_clear_records, 8, IMMEDIATE_LOG_CHANGE },
[EVENTS][GET_INTERRUPT_POLICY] = { "EVENTS_GET_INTERRUPT_POLICY",
- cmd_events_get_interrupt_policy, 0, 0 },
+ cmd_events_get_interrupt_policy, 0, 0 },
[EVENTS][SET_INTERRUPT_POLICY] = { "EVENTS_SET_INTERRUPT_POLICY",
- cmd_events_set_interrupt_policy, 4, IMMEDIATE_CONFIG_CHANGE },
+ cmd_events_set_interrupt_policy,
+ sizeof(struct
cxl_event_interrupt_policy),
+ IMMEDIATE_CONFIG_CHANGE },
[FIRMWARE_UPDATE][GET_INFO] = { "FIRMWARE_UPDATE_GET_INFO",
cmd_firmware_update_get_info, 0, 0 },
[TIMESTAMP][GET] = { "TIMESTAMP_GET", cmd_timestamp_get, 0, 0 },
diff --git a/include/hw/cxl/cxl_events.h b/include/hw/cxl/cxl_events.h
index 255111f3dcfb..c121e504a6db 100644
--- a/include/hw/cxl/cxl_events.h
+++ b/include/hw/cxl/cxl_events.h
@@ -170,4 +170,25 @@ struct cxl_event_mem_module {
uint8_t reserved[CXL_EVENT_MEM_MOD_RES_SIZE];
} QEMU_PACKED;
+/**
+ * Event Interrupt Policy
+ *
+ * CXL rev 3.0 section 8.2.9.2.4; Table 8-52
+ */
+enum cxl_event_int_mode {
+ CXL_INT_NONE = 0x00,
+ CXL_INT_MSI_MSIX = 0x01,
+ CXL_INT_FW = 0x02,
+ CXL_INT_RES = 0x03,
+};
+#define CXL_EVENT_INT_MODE_MASK 0x3
+#define CXL_EVENT_INT_SETTING(vector) ((((uint8_t)vector & 0xf) << 4) |
CXL_INT_MSI_MSIX)
+struct cxl_event_interrupt_policy {
+ uint8_t info_settings;
+ uint8_t warn_settings;
+ uint8_t failure_settings;
+ uint8_t fatal_settings;
+ uint8_t dyn_cap_settings;
+} QEMU_PACKED;
+
#endif /* CXL_EVENTS_H */
--
2.37.2
