Commit ebb0adcf authored Apr 07, 2020 by Frederic Barrat Committed by Greg Kroah-Hartman Nov 01, 2020

cxl: Rework error message for incompatible slots



commit 40ac790d99c6dd16b367d5c2339e446a5f1b0593 upstream.

Improve the error message shown if a capi adapter is plugged on a
capi-incompatible slot directly under the PHB (no intermediate switch).

Fixes: 56328743 ("cxl: Add support for POWER9 DD2")
Cc: stable@vger.kernel.org # 4.14+
Signed-off-by: Frederic Barrat <fbarrat@linux.ibm.com>
Reviewed-by: Andrew Donnellan <ajd@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200407115601.25453-1-fbarrat@linux.ibm.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 125a229e

drivers/misc/cxl/pci.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -393,8 +393,8 @@ int cxl_calc_capp_routing(struct pci_dev dev, u64 chipid,
		capp_unit_id = get_capp_unit_id(np, phb_index);
		of_node_put(np);
		if (!*capp_unit_id) {
		pr_err("cxl: invalid capp unit id (phb_index: %d)\n",
		*phb_index);
		pr_err("cxl: No capp unit found for PHB[%lld,%d]. Make sure the adapter is on a capi-compatible slot\n",
		chipid, phb_index);
		return -ENODEV;
		}