diff options
| author | Fan Ni <fan.ni@samsung.com> | 2025-07-14 18:44:57 +0100 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2025-07-15 02:56:40 -0400 |
| commit | fe63feb7e8f2d62621008fdf7c884f3573de249b (patch) | |
| tree | b8c29369f9842d044e61fea629254628a9cbc77b /include/hw | |
| parent | 98f030e7c9b4ac42e886b140899f7ae12ab4f028 (diff) | |
| download | qemu-fe63feb7e8f2d62621008fdf7c884f3573de249b.zip qemu-fe63feb7e8f2d62621008fdf7c884f3573de249b.tar.gz qemu-fe63feb7e8f2d62621008fdf7c884f3573de249b.tar.bz2 | |
hw/cxl: fix DC extent capacity tracking
Per cxl r3.2 Section 9.13.3.3, extent capacity tracking should include
extents in different states including added, pending, etc.
Before the change, for the in-device extent number tracking purpose, we only
have "total_extent_count" defined, which only tracks the number of
extents accepted. However, we need to track number of extents in other
states also, for now it is extents pending-to-add.
To fix that, we introduce a new counter for dynamic capacity
"nr_extents_accepted" which explicitly tracks number of the extents
accepted by the hosts, and fix "total_extent_count" to include
both accepted and pending extents counting.
Signed-off-by: Fan Ni <fan.ni@samsung.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Message-Id: <20250714174509.1984430-2-Jonathan.Cameron@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'include/hw')
| -rw-r--r-- | include/hw/cxl/cxl_device.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/hw/cxl/cxl_device.h b/include/hw/cxl/cxl_device.h index ed6cd50..a151e19 100644 --- a/include/hw/cxl/cxl_device.h +++ b/include/hw/cxl/cxl_device.h @@ -618,6 +618,7 @@ struct CXLType3Dev { CXLDCExtentList extents; CXLDCExtentGroupList extents_pending; uint32_t total_extent_count; + uint32_t nr_extents_accepted; uint32_t ext_list_gen_seq; uint8_t num_regions; /* 0-8 regions */ @@ -696,7 +697,7 @@ CXLDCExtentGroup *cxl_insert_extent_to_extent_group(CXLDCExtentGroup *group, uint16_t shared_seq); void cxl_extent_group_list_insert_tail(CXLDCExtentGroupList *list, CXLDCExtentGroup *group); -void cxl_extent_group_list_delete_front(CXLDCExtentGroupList *list); +uint32_t cxl_extent_group_list_delete_front(CXLDCExtentGroupList *list); void ct3_set_region_block_backed(CXLType3Dev *ct3d, uint64_t dpa, uint64_t len); void ct3_clear_region_block_backed(CXLType3Dev *ct3d, uint64_t dpa, |