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hw/cxl: Standardize all references on CXL r3.1 and minor updates

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Previously not all references mentioned any spec version at all.
Given r3.1 is the current specification available for evaluation at
www.computeexpresslink.org update references to refer to that.
Hopefully this won't become a never ending job.

A few structure definitions have been updated to add new fields.
Defaults of 0 and read only are valid choices for these new DVSEC
registers so go with that for now.

There are additional error codes and some of the 'questions' in
the comments are resolved now.

Update documentation reference to point to the CXL r3.1 specification
with naming closer to what is on the cover.

For cases where there are structure version numbers, add defines
so they can be found next to the register definitions.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Message-Id: <20240126121636.24611-6-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:
Jonathan Cameron 2024-01-26 12:16:36 +00:00 • committed by Michael S. Tsirkin
parent 202f651469
commit 8700ee15de
14 changed files with 174 additions and 104 deletions
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10
include/hw/cxl/cxl_cdat.h
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@ -16,17 +16,17 @@
/*
* Reference:
* Coherent Device Attribute Table (CDAT) Specification, Rev. 1.03, July. 2022
* Compute Express Link (CXL) Specification, Rev. 3.0, Aug. 2022
* Compute Express Link (CXL) Specification, Rev. 3.1, Aug. 2023
*/
/* Table Access DOE - CXL r3.0 8.1.11 */
/* Table Access DOE - CXL r3.1 8.1.11 */
#define CXL_DOE_TABLE_ACCESS 2
#define CXL_DOE_PROTOCOL_CDAT ((CXL_DOE_TABLE_ACCESS << 16) | CXL_VENDOR_ID)
/* Read Entry - CXL r3.0 8.1.11.1 */
/* Read Entry - CXL r3.1 8.1.11.1 */
#define CXL_DOE_TAB_TYPE_CDAT 0
#define CXL_DOE_TAB_ENT_MAX 0xFFFF
/* Read Entry Request - CXL r3.0 8.1.11.1 Table 8-13 */
/* Read Entry Request - CXL r3.1 8.1.11.1 Table 8-13 */
#define CXL_DOE_TAB_REQ 0
typedef struct CDATReq {
DOEHeader header;
@ -35,7 +35,7 @@ typedef struct CDATReq {
uint16_t entry_handle;
} QEMU_PACKED CDATReq;
/* Read Entry Response - CXL r3.0 8.1.11.1 Table 8-14 */
/* Read Entry Response - CXL r3.1 8.1.11.1 Table 8-14 */
#define CXL_DOE_TAB_RSP 0
typedef struct CDATRsp {
DOEHeader header;