git/linux-cryptodev-2.6
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git synced 2026-04-18 03:23:53 -04:00
Code Issues Packages Projects Releases Wiki Activity

PCI: Rename CRS Completion Status to RRS

Browse Source 
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
Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/bcma/driver_pci_host.c
View File

@@ -334,7 +334,7 @@ static u8 bcma_find_pci_capability(struct bcma_drv_pci *pc, unsigned int dev,
}
/* If the root port is capable of returning Config Request
* Retry Status (CRS) Completion Status to software then
* Retry Status (RRS) Completion Status to software then
* enable the feature.
*/
static void bcma_core_pci_enable_crs(struct bcma_drv_pci *pc)
@@ -348,10 +348,10 @@ static void bcma_core_pci_enable_crs(struct bcma_drv_pci *pc)
NULL);
root_cap = cap_ptr + PCI_EXP_RTCAP;
bcma_extpci_read_config(pc, 0, 0, root_cap, &val16, sizeof(u16));
if (val16 & BCMA_CORE_PCI_RC_CRS_VISIBILITY) {
/* Enable CRS software visibility */
if (val16 & BCMA_CORE_PCI_RC_RRS_VISIBILITY) {
/* Enable Configuration RRS Software Visibility */
root_ctrl = cap_ptr + PCI_EXP_RTCTL;
val16 = PCI_EXP_RTCTL_CRSSVE;
val16 = PCI_EXP_RTCTL_RRS_SVE;
bcma_extpci_read_config(pc, 0, 0, root_ctrl, &val16,
sizeof(u16));
@@ -360,7 +360,7 @@ static void bcma_core_pci_enable_crs(struct bcma_drv_pci *pc)
* 100 ms wait time from the end of Reset. If the device is
* not done with its internal initialization, it must at
* least return a completion TLP, with a completion status
* of "Configuration Request Retry Status (CRS)". The root
* of "Configuration Request Retry Status (RRS)". The root
* complex must complete the request to the host by returning
* a read-data value of 0001h for the Vendor ID field and
* all 1s for any additional bytes included in the request.