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| author |  Ben Widawsky <ben.widawsky@intel.com>
| 2021-05-20 13:48:52 -0700 |
|---|---|---|
| committer |  Dan Williams <dan.j.williams@intel.com>
| 2021-05-26 11:20:17 -0700 |
| commit | dd2a93a814e7ffbd4d2c3e361f4609c9bd384a96 (patch) | |
| tree | afd4d290b3c076f8def35d91a550935255d779a2 /drivers/cxl | |
| parent | cxl/pci.c: Add a 'label_storage_size' attribute to the memdev (diff) | |
| download | linux-dd2a93a814e7ffbd4d2c3e361f4609c9bd384a96.tar.gz linux-dd2a93a814e7ffbd4d2c3e361f4609c9bd384a96.tar.bz2 linux-dd2a93a814e7ffbd4d2c3e361f4609c9bd384a96.zip | |
cxl/mem: Demarcate vendor specific capability IDs
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.
This patch is a squash of two earlier patches and take in some minor
suggestions from both Vishal and Dan.
Cc: Vishal Verma <vishal.l.verma@intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Ben Widawsky <ben.widawsky@intel.com>
Reviewed-by: Vishal Verma <vishal.l.verma@intel.com>
Link: https://lore.kernel.org/r/20210520204852.1070780-1-ben.widawsky@intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/cxl')
| -rw-r--r-- | drivers/cxl/core.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/cxl/core.c b/drivers/cxl/core.c index 84b90db57420..38979c97158d 100644 --- a/drivers/cxl/core.c +++ b/drivers/cxl/core.c @@ -60,7 +60,10 @@ void cxl_setup_device_regs(struct device *dev, void __iomem *base, regs->memdev = register_block; break; default: - dev_dbg(dev, "Unknown cap ID: %d (0x%x)\n", cap_id, offset); + if (cap_id >= 0x8000) + dev_dbg(dev, "Vendor cap ID: %#x offset: %#x\n", cap_id, offset); + else + dev_dbg(dev, "Unknown cap ID: %#x offset: %#x\n", cap_id, offset); break; } } |