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PCI: Rename CRS Completion Status to RRS

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PCIe r6.0 changed the abbreviation for "Configuration Request Retry Status"
Completion Status from "CRS" to "RRS" and uses the terminology of
"Configuration RRS Software Visibility" instead of "CRS Software
Visibility".

Align the Linux usage with the r6.0 spec language.  No functional change
intended.

It's confusing to make this change, but I think "RRS" *is* a better
abbreviation because it was easy to interpret "CRS" as "Completion Retry
Status", which really didn't make any sense.

Link: https://lore.kernel.org/r/20240827234848.4429-4-helgaas@kernel.org
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Bjorn Helgaas
2024-08-27 18:48:48 -05:00
parent dd4e47eab8
commit 87f10faf16
12 changed files with 86 additions and 84 deletions
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6
include/uapi/linux/pci_regs.h
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@@ -634,9 +634,11 @@
#define PCI_EXP_RTCTL_SENFEE 0x0002 /* System Error on Non-Fatal Error */
#define PCI_EXP_RTCTL_SEFEE 0x0004 /* System Error on Fatal Error */
#define PCI_EXP_RTCTL_PMEIE 0x0008 /* PME Interrupt Enable */
#define PCI_EXP_RTCTL_CRSSVE 0x0010 /* CRS Software Visibility Enable */
#define PCI_EXP_RTCTL_RRS_SVE 0x0010 /* Config RRS Software Visibility Enable */
#define PCI_EXP_RTCTL_CRSSVE PCI_EXP_RTCTL_RRS_SVE /* compatibility */
#define PCI_EXP_RTCAP 0x1e /* Root Capabilities */
#define PCI_EXP_RTCAP_CRSVIS 0x0001 /* CRS Software Visibility capability */
#define PCI_EXP_RTCAP_RRS_SV 0x0001 /* Config RRS Software Visibility */
#define PCI_EXP_RTCAP_CRSVIS PCI_EXP_RTCAP_RRS_SV /* compatibility */
#define PCI_EXP_RTSTA 0x20 /* Root Status */
#define PCI_EXP_RTSTA_PME_RQ_ID 0x0000ffff /* PME Requester ID */
#define PCI_EXP_RTSTA_PME 0x00010000 /* PME status */