From 6a2892d09df545c6ea828bc8ad08112961b88f6d Mon Sep 17 00:00:00 2001
From: Harald Freudenberger <freude@linux.ibm.com>
Date: Fri, 9 Feb 2024 16:14:23 +0100
Subject: [PATCH] s390/ap: add debug possibility for AP messages
This patch introduces two dynamic debug hexdump
invocation possibilities to be able to a) dump an
AP message immediately before it goes into the
firmware queue and b) dump a fresh from the
firmware queue received AP message.
Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Reviewed-by: Holger Dengler <dengler@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
---
drivers/s390/crypto/ap_queue.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/s390/crypto/ap_queue.c b/drivers/s390/crypto/ap_queue.c
index d8268fee3bd5c..6e4e8d324a6de 100644
--- a/drivers/s390/crypto/ap_queue.c
+++ b/drivers/s390/crypto/ap_queue.c
@@ -136,6 +136,8 @@ static struct ap_queue_status ap_sm_recv(struct ap_queue *aq)
switch (status.response_code) {
case AP_RESPONSE_NORMAL:
+ print_hex_dump_debug("aprpl: ", DUMP_PREFIX_ADDRESS, 16, 1,
+ aq->reply->msg, aq->reply->len, false);
aq->queue_count = max_t(int, 0, aq->queue_count - 1);
if (!status.queue_empty && !aq->queue_count)
aq->queue_count++;
@@ -246,6 +248,8 @@ static enum ap_sm_wait ap_sm_write(struct ap_queue *aq)
/* Start the next request on the queue. */
ap_msg = list_entry(aq->requestq.next, struct ap_message, list);
+ print_hex_dump_debug("apreq: ", DUMP_PREFIX_ADDRESS, 16, 1,
+ ap_msg->msg, ap_msg->len, false);
status = __ap_send(qid, ap_msg->psmid,
ap_msg->msg, ap_msg->len,
ap_msg->flags & AP_MSG_FLAG_SPECIAL);
--
2.30.2