From: Anisa Su <anisa...@samsung.com> FM DCD Managment command 0x5605 implemented per CXL r3.2 Spec Section 7.6.7.6.6
Signed-off-by: Anisa Su <anisa...@samsung.com> --- hw/cxl/cxl-mailbox-utils.c | 62 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 62 insertions(+) diff --git a/hw/cxl/cxl-mailbox-utils.c b/hw/cxl/cxl-mailbox-utils.c index 7ee5be00bc..6c57e0deac 100644 --- a/hw/cxl/cxl-mailbox-utils.c +++ b/hw/cxl/cxl-mailbox-utils.c @@ -124,6 +124,7 @@ enum { #define SET_DC_REGION_CONFIG 0x2 #define GET_DC_REGION_EXTENT_LIST 0x3 #define INITIATE_DC_ADD 0x4 + #define INITIATE_DC_RELEASE 0x5 }; /* CCI Message Format CXL r3.1 Figure 7-19 */ @@ -3685,6 +3686,60 @@ static CXLRetCode cmd_fm_initiate_dc_add(const struct cxl_cmd *cmd, return CXL_MBOX_SUCCESS; } +#define CXL_EXTENT_REMOVAL_POLICY_MASK 0x7 +/* CXL r3.2 Section 7.6.7.6.6 Initiate Dynamic Capacity Release (Opcode 5605h) */ +static CXLRetCode cmd_fm_initiate_dc_release(const struct cxl_cmd *cmd, + uint8_t *payload_in, + size_t len_in, + uint8_t *payload_out, + size_t *len_out, + CXLCCI *cci) +{ + struct { + uint16_t host_id; + uint8_t flags; + uint8_t reg_num; + uint64_t length; + uint8_t tag[0x10]; + uint32_t ext_count; + CXLDCExtentRaw extents[]; + } QEMU_PACKED *in = (void *)payload_in; + CXLType3Dev *ct3d = CXL_TYPE3(cci->d); + CXLUpdateDCExtentListInPl *list; + CXLDCExtentList updated_list; + uint32_t updated_list_size; + int rc; + + switch (in->flags & CXL_EXTENT_REMOVAL_POLICY_MASK) { + case CXL_EXTENT_REMOVAL_POLICY_PRESCRIPTIVE: + list = calloc(1, (sizeof(*list) + + in->ext_count * sizeof(*list->updated_entries))); + convert_raw_extents(in->extents, list, in->ext_count); + rc = cxl_detect_malformed_extent_list(ct3d, list); + if (rc) { + return rc; + } + rc = cxl_dc_extent_release_dry_run(ct3d, + list, + &updated_list, + &updated_list_size); + if (rc) { + return rc; + } + cxl_mbox_create_dc_event_records_for_extents(ct3d, + DC_EVENT_RELEASE_CAPACITY, + in->extents, + in->ext_count); + return CXL_MBOX_SUCCESS; + default: + qemu_log_mask(LOG_UNIMP, + "CXL extent selection policy not supported.\n"); + return CXL_MBOX_INVALID_INPUT; + } + + return CXL_MBOX_SUCCESS; +} + static const struct cxl_cmd cxl_cmd_set[256][256] = { [INFOSTAT][BACKGROUND_OPERATION_ABORT] = { "BACKGROUND_OPERATION_ABORT", cmd_infostat_bg_op_abort, 0, 0 }, @@ -3819,6 +3874,13 @@ static const struct cxl_cmd cxl_cmd_set_fm_dcd[256][256] = { CXL_MBOX_CONFIG_CHANGE_CXL_RESET | CXL_MBOX_IMMEDIATE_CONFIG_CHANGE | CXL_MBOX_IMMEDIATE_DATA_CHANGE) }, + [FMAPI_DCD_MGMT][INITIATE_DC_RELEASE] = { "INIT_DC_RELEASE", + cmd_fm_initiate_dc_release, ~0, + (CXL_MBOX_CONFIG_CHANGE_COLD_RESET | + CXL_MBOX_CONFIG_CHANGE_CONV_RESET | + CXL_MBOX_CONFIG_CHANGE_CXL_RESET | + CXL_MBOX_IMMEDIATE_CONFIG_CHANGE | + CXL_MBOX_IMMEDIATE_DATA_CHANGE) }, }; /* -- 2.47.2