From b4262c8e65a4f5aa931b5451535084297968949d Mon Sep 17 00:00:00 2001
From: Dan Williams <dan.j.williams@intel.com>
Date: Thu, 14 Jul 2022 10:01:58 -0700
Subject: [PATCH 176/217] cxl/list: Emit endpoint decoders filtered by memdev

For example, dump all the endpoint decoders from memdev 'mem8'.

    cxl list -Di -m 8 -d endpoint

Link: https://lore.kernel.org/r/165781811836.1555691.1997564050287016121.stgit@dwillia2-xfh.jf.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>
---
 cxl/filter.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/cxl/filter.c b/cxl/filter.c
index 66fd742..2f88a9d 100644
--- a/cxl/filter.c
+++ b/cxl/filter.c
@@ -428,7 +428,9 @@ util_cxl_decoder_filter_by_memdev(struct cxl_decoder *decoder,
 				  const char *ident, const char *serial)
 {
 	struct cxl_ctx *ctx = cxl_decoder_get_ctx(decoder);
+	struct cxl_endpoint *endpoint;
 	struct cxl_memdev *memdev;
+	struct cxl_port *port;
 
 	if (!ident && !serial)
 		return decoder;
@@ -438,6 +440,12 @@ util_cxl_decoder_filter_by_memdev(struct cxl_decoder *decoder,
 			continue;
 		if (cxl_decoder_get_target_by_memdev(decoder, memdev))
 			return decoder;
+		port = cxl_decoder_get_port(decoder);
+		if (!port || !cxl_port_is_endpoint(port))
+			continue;
+		endpoint = cxl_port_to_endpoint(port);
+		if (cxl_endpoint_get_memdev(endpoint) == memdev)
+			return decoder;
 	}
 
 	return NULL;
-- 
2.27.0