[ndctl PATCH v2 02/12] cxl/list: Emit endpoint decoders filtered by memdev

From: Dan Williams <dan.j.williams@intel.com>
To: vishal.l.verma@intel.com
Cc: alison.schofield@intel.com, nvdimm@lists.linux.dev,
	linux-cxl@vger.kernel.org
Subject: [ndctl PATCH v2 02/12] cxl/list: Emit endpoint decoders filtered by memdev
Date: Thu, 14 Jul 2022 10:01:58 -0700	[thread overview]
Message-ID: <165781811836.1555691.1997564050287016121.stgit@dwillia2-xfh.jf.intel.com> (raw)
In-Reply-To: <165781810717.1555691.1411727384567016588.stgit@dwillia2-xfh.jf.intel.com>

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

    cxl list -Di -m 8 -d endpoint

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 cxl/filter.c |    8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/cxl/filter.c b/cxl/filter.c
index 66fd7420144a..2f88a9d2f398 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;

