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s390/ap: add debug possibility for AP messages

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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>
This commit is contained in:
Harald Freudenberger 2024-02-09 16:14:23 +01:00 committed by Heiko Carstens
parent 6d749b4e02
commit 6a2892d09d
1 changed files with 4 additions and 0 deletions
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4
drivers/s390/crypto/ap_queue.c
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@ -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);