github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-06-02 11:33:28 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

PCI/DOE: Rename Discovery Response Data Object Contents to type

Browse Source 
PCIe r6.1, sec 6.30.1.1, describes a "Vendor ID", a "Data Object Type" and
"Next Index" as the fields in the DOE Discovery Response Data Object. The
DOE driver currently uses both the terms 'type' and 'prot' for the second
element.

Rename all uses of the DOE Discovery Response Data Object to use 'type' as
the second element of the object header, instead of type/prot as it
currently is.

Link: https://lore.kernel.org/r/20250306075211.1855177-2-alistair@alistair23.me
Signed-off-by: Alistair Francis <alistair@alistair23.me>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Alistair Francis 2025-03-06 17:52:09 +10:00 committed by Bjorn Helgaas
parent b4db6be0ce
commit f810d17762
2 changed files with 13 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
drivers/pci/doe.c
View File

@ -418,7 +418,7 @@ static int pci_doe_discovery(struct pci_doe_mb *doe_mb, u8 capver, u8 *index, u1
response_pl = le32_to_cpu(response_pl_le);
*vid = FIELD_GET(PCI_DOE_DATA_OBJECT_DISC_RSP_3_VID, response_pl);
*feature = FIELD_GET(PCI_DOE_DATA_OBJECT_DISC_RSP_3_PROTOCOL,
*feature = FIELD_GET(PCI_DOE_DATA_OBJECT_DISC_RSP_3_TYPE,
response_pl);
*index = FIELD_GET(PCI_DOE_DATA_OBJECT_DISC_RSP_3_NEXT_INDEX,
response_pl);
@ -426,9 +426,9 @@ static int pci_doe_discovery(struct pci_doe_mb *doe_mb, u8 capver, u8 *index, u1
return 0;
}
static void *pci_doe_xa_feat_entry(u16 vid, u8 prot)
static void *pci_doe_xa_feat_entry(u16 vid, u8 type)
{
return xa_mk_value((vid << 8) | prot);
return xa_mk_value((vid << 8) | type);
}
static int pci_doe_cache_features(struct pci_doe_mb *doe_mb)
@ -442,19 +442,19 @@ static int pci_doe_cache_features(struct pci_doe_mb *doe_mb)
do {
int rc;
u16 vid;
u8 prot;
u8 type;
rc = pci_doe_discovery(doe_mb, PCI_EXT_CAP_VER(hdr), &index,
&vid, &prot);
&vid, &type);
if (rc)
return rc;
pci_dbg(doe_mb->pdev,
"[%x] Found feature %d vid: %x prot: %x\n",
doe_mb->cap_offset, xa_idx, vid, prot);
"[%x] Found feature %d vid: %x type: %x\n",
doe_mb->cap_offset, xa_idx, vid, type);
rc = xa_insert(&doe_mb->feats, xa_idx++,
pci_doe_xa_feat_entry(vid, prot), GFP_KERNEL);
pci_doe_xa_feat_entry(vid, type), GFP_KERNEL);
if (rc)
return rc;
} while (index);
@ -675,7 +675,7 @@ EXPORT_SYMBOL_GPL(pci_doe);
*
* @pdev: PCI device
* @vendor: Vendor ID
* @prot: Data Object Type
* @type: Data Object Type
*
* Find first DOE mailbox of a PCI device which supports the given feature.
*

5
include/uapi/linux/pci_regs.h
View File

@ -1205,9 +1205,12 @@
#define PCI_DOE_DATA_OBJECT_DISC_REQ_3_INDEX 0x000000ff
#define PCI_DOE_DATA_OBJECT_DISC_REQ_3_VER 0x0000ff00
#define PCI_DOE_DATA_OBJECT_DISC_RSP_3_VID 0x0000ffff
#define PCI_DOE_DATA_OBJECT_DISC_RSP_3_PROTOCOL 0x00ff0000
#define PCI_DOE_DATA_OBJECT_DISC_RSP_3_TYPE 0x00ff0000
#define PCI_DOE_DATA_OBJECT_DISC_RSP_3_NEXT_INDEX 0xff000000
/* Deprecated old name, replaced with PCI_DOE_DATA_OBJECT_DISC_RSP_3_TYPE */
#define PCI_DOE_DATA_OBJECT_DISC_RSP_3_PROTOCOL PCI_DOE_DATA_OBJECT_DISC_RSP_3_TYPE
/* Compute Express Link (CXL r3.1, sec 8.1.5) */
#define PCI_DVSEC_CXL_PORT 3
#define PCI_DVSEC_CXL_PORT_CTL 0x0c