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hw/pci-bridge/cxl-upstream: Add serial number extended capability support

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Will be needed so there is a defined serial number for
information queries via the Switch CCI.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Message-Id: <20230913133615.29876-1-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 2023-09-13 14:36:15 +01:00 committed by Michael S. Tsirkin
parent e967413fe0
commit 2c9ec2a827
1 changed files with 13 additions and 2 deletions
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15
hw/pci-bridge/cxl_upstream.c
View file

@ -14,14 +14,21 @@
#include "hw/pci/msi.h"
#include "hw/pci/pcie.h"
#include "hw/pci/pcie_port.h"
/*
* Null value of all Fs suggested by IEEE RA guidelines for use of
* EU, OUI and CID
*/
#define UI64_NULL (~0ULL)
#define CXL_UPSTREAM_PORT_MSI_NR_VECTOR 2
#define CXL_UPSTREAM_PORT_MSI_OFFSET 0x70
#define CXL_UPSTREAM_PORT_PCIE_CAP_OFFSET 0x90
#define CXL_UPSTREAM_PORT_AER_OFFSET 0x100
#define CXL_UPSTREAM_PORT_DVSEC_OFFSET \
#define CXL_UPSTREAM_PORT_SN_OFFSET \
(CXL_UPSTREAM_PORT_AER_OFFSET + PCI_ERR_SIZEOF)
#define CXL_UPSTREAM_PORT_DVSEC_OFFSET \
(CXL_UPSTREAM_PORT_SN_OFFSET + PCI_EXT_CAP_DSN_SIZEOF)
typedef struct CXLUpstreamPort {
/*< private >*/
@ -30,6 +37,7 @@ typedef struct CXLUpstreamPort {
/*< public >*/
CXLComponentState cxl_cstate;
DOECap doe_cdat;
uint64_t sn;
} CXLUpstreamPort;
CXLComponentState *cxl_usp_to_cstate(CXLUpstreamPort *usp)
@ -326,7 +334,9 @@ static void cxl_usp_realize(PCIDevice *d, Error **errp)
if (rc) {
goto err_cap;
}
if (usp->sn != UI64_NULL) {
pcie_dev_ser_num_init(d, CXL_UPSTREAM_PORT_SN_OFFSET, usp->sn);
}
cxl_cstate->dvsec_offset = CXL_UPSTREAM_PORT_DVSEC_OFFSET;
cxl_cstate->pdev = d;
build_dvsecs(cxl_cstate);
@ -366,6 +376,7 @@ static void cxl_usp_exitfn(PCIDevice *d)
}
static Property cxl_upstream_props[] = {
DEFINE_PROP_UINT64("sn", CXLUpstreamPort, sn, UI64_NULL),
DEFINE_PROP_STRING("cdat", CXLUpstreamPort, cxl_cstate.cdat.filename),
DEFINE_PROP_END_OF_LIST()
};