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authorDave Jiang <dave.jiang@intel.com>2023-10-12 21:53:48 +0300
committerDan Williams <dan.j.williams@intel.com>2023-10-28 06:48:02 +0300
commit8358e8f1596b0b23d3bbc4cf5df5e5e55afc0122 (patch)
tree51a0119f18795d5020a62a16368c4b49e4223f7d /drivers/cxl/port.c
parent670e4e88f3b1a88a5a089be329b95c51592973ee (diff)
downloadlinux-8358e8f1596b0b23d3bbc4cf5df5e5e55afc0122.tar.xz
cxl: Add support for reading CXL switch CDAT table
Add read_cdat_data() call in cxl_switch_port_probe() to allow reading of CDAT data for CXL switches. read_cdat_data() needs to be adjusted for the retrieving of the PCIe device depending on if the passed in port is endpoint or switch. Reviewed-by: Davidlohr Bueso <dave@stgolabs.net> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Dave Jiang <dave.jiang@intel.com> Link: https://lore.kernel.org/r/169713682855.2205276.6418370379144967443.stgit@djiang5-mobl3 Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/cxl/port.c')
-rw-r--r--drivers/cxl/port.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/cxl/port.c b/drivers/cxl/port.c
index 6240e05b9542..47bc8e0b8590 100644
--- a/drivers/cxl/port.c
+++ b/drivers/cxl/port.c
@@ -62,6 +62,9 @@ static int cxl_switch_port_probe(struct cxl_port *port)
struct cxl_hdm *cxlhdm;
int rc;
+ /* Cache the data early to ensure is_visible() works */
+ read_cdat_data(port);
+
rc = devm_cxl_port_enumerate_dports(port);
if (rc < 0)
return rc;