[PATCH 3/3] cxl/mem: Demarcate vendor specific capability IDs

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Vendor capabilities occupy 0x8000 to 0xFFFF according to CXL 2.0 spec
8.2.8.2.1 CXL Device Capabilities. While they are not defined by the
spec, they are allowed and not "unknown". Call this detail out in the
logs to let users easily distinguish the difference.

Fixes: 8adaf747c9f0b ("cxl/mem: Find device capabilities")
Signed-off-by: Ben Widawsky <ben.widawsky@xxxxxxxxx>
---
 drivers/cxl/mem.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/cxl/mem.c b/drivers/cxl/mem.c
index c05617b0ba4b..0909f73db994 100644
--- a/drivers/cxl/mem.c
+++ b/drivers/cxl/mem.c
@@ -939,7 +939,10 @@ static int cxl_mem_setup_regs(struct cxl_mem *cxlm)
 			cxlm->memdev_regs = register_block;
 			break;
 		default:
-			dev_dbg(dev, "Unknown cap ID: %x (0x%x)\n", cap_id, offset);
+			if (cap_id > 0x8000)
+				dev_dbg(dev, "Vendor cap ID: %x (0x%x)\n", cap_id, offset);
+			else
+				dev_dbg(dev, "Unknown cap ID: %x (0x%x)\n", cap_id, offset);
 			break;
 		}
 	}
-- 
2.31.1




[Index of Archives]     [Linux IBM ACPI]     [Linux Power Management]     [Linux Kernel]     [Linux Laptop]     [Kernel Newbies]     [Share Photos]     [Security]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Samba]     [Video 4 Linux]     [Device Mapper]     [Linux Resources]

  Powered by Linux