[qca-nss-drv] PPPoE Logging

Change-Id: I31763a227d57ad93c0f5d2ac9227d661d70e6248
Signed-off-by: Sachin Shashidhar <sshashid@codeaurora.org>
diff --git a/Makefile b/Makefile
index 9c0b291..3d66014 100644
--- a/Makefile
+++ b/Makefile
@@ -78,6 +78,7 @@
 			nss_ppe.o \
 			nss_ppe_stats.o \
 			nss_pppoe.o \
+			nss_pppoe_log.o \
 			nss_pppoe_stats.o \
 			nss_pptp.o \
 			nss_pptp_stats.o \
diff --git a/Makefile.fsm b/Makefile.fsm
index acf426b..cfcf592 100644
--- a/Makefile.fsm
+++ b/Makefile.fsm
@@ -68,6 +68,7 @@
 			nss_ppe.o \
 			nss_ppe_stats.o \
 			nss_pppoe.o \
+			nss_pppoe_log.o \
 			nss_pppoe_stats.o \
 			nss_pptp.o \
 			nss_pptp_stats.o \
diff --git a/nss_pppoe.c b/nss_pppoe.c
index 4f142e9..5a0c4b3 100644
--- a/nss_pppoe.c
+++ b/nss_pppoe.c
@@ -21,6 +21,7 @@
 
 #include "nss_tx_rx_common.h"
 #include "nss_pppoe_stats.h"
+#include "nss_pppoe_log.h"
 
 #define NSS_PPPOE_TX_TIMEOUT 3000 /* 3 Seconds */
 
@@ -81,6 +82,11 @@
 	struct nss_cmn_msg *ncm = &msg->cm;
 
 	/*
+	 * Trace Messages
+	 */
+	nss_pppoe_log_tx_msg(msg);
+
+	/*
 	 * Sanity check the message
 	 */
 	if (!nss_is_dynamic_interface(ncm->interface)) {
@@ -139,6 +145,11 @@
 	BUG_ON(!(nss_is_dynamic_interface(ncm->interface) || ncm->interface == NSS_PPPOE_INTERFACE));
 
 	/*
+	 * Trace Messages
+	 */
+	nss_pppoe_log_rx_msg(nim);
+
+	/*
 	 * Sanity check the message type
 	 */
 	if (ncm->type >= NSS_PPPOE_MSG_MAX) {
diff --git a/nss_pppoe_log.c b/nss_pppoe_log.c
new file mode 100644
index 0000000..927c3e3
--- /dev/null
+++ b/nss_pppoe_log.c
@@ -0,0 +1,133 @@
+/*
+ **************************************************************************
+ * Copyright (c) 2018, The Linux Foundation. All rights reserved.
+ * Permission to use, copy, modify, and/or distribute this software for
+ * any purpose with or without fee is hereby granted, provided that the
+ * above copyright notice and this permission notice appear in all copies.
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+ * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ **************************************************************************
+ */
+
+/*
+ * nss_pppoe_log.c
+ *	NSS PPPOE logger file.
+ */
+
+#include "nss_core.h"
+
+/*
+ * nss_pppoe_log_message_types_str
+ *	NSS PPPOE message strings
+ */
+static int8_t *nss_pppoe_log_message_types_str[NSS_PPPOE_MSG_MAX] __maybe_unused = {
+	"PPPOE Session Create",
+	"PPPOE Session Destroy",
+	"PPPOE Stats",
+};
+
+/*
+ * nss_pppoe_log_session_create_msg()
+ *	Log NSS Session Create.
+ */
+static void nss_pppoe_log_session_create_msg(struct nss_pppoe_msg *npm)
+{
+	struct nss_pppoe_create_msg *npcm __maybe_unused = &npm->msg.create;
+	nss_trace("%p: NSS PPPOE Session Create message \n"
+		"PPPOE Physical Interface Number: %d\n"
+		"PPPOE MTU: %d\n"
+		"PPPOE Server MAC: %pM\n"
+		"PPPOE Local MAC: %pM\n"
+		"PPPOE Session ID: %d\n",
+		npcm, npcm->phy_if_num,
+		npcm->mtu, npcm->server_mac,
+		npcm->local_mac, npcm->session_id);
+}
+
+/*
+ * nss_pppoe_log_session_destroy_msg()
+ *	Log NSS Session Destroy.
+ */
+static void nss_pppoe_log_session_destroy_msg(struct nss_pppoe_msg *npm)
+{
+	struct nss_pppoe_destroy_msg *npdm __maybe_unused = &npm->msg.destroy;
+	nss_trace("%p: NSS PPPOE Session Destroy message \n"
+		"PPPOE Session ID: %d\n"
+		"PPPOE Server MAC: %pM\n"
+		"PPPOE Local MAC: %pM\n",
+		npdm, npdm->session_id,
+		npdm->server_mac, npdm->local_mac);
+}
+
+/*
+ * nss_pppoe_log_verbose()
+ *	Log message contents.
+ */
+static void nss_pppoe_log_verbose(struct nss_pppoe_msg *npm)
+{
+	switch (npm->cm.type) {
+	case NSS_PPPOE_MSG_SESSION_CREATE:
+		nss_pppoe_log_session_create_msg(npm);
+		break;
+
+	case NSS_PPPOE_MSG_SESSION_DESTROY:
+		nss_pppoe_log_session_destroy_msg(npm);
+		break;
+
+	case NSS_PPPOE_MSG_SYNC_STATS:
+		/*
+		 * No log for valid stats message.
+		 */
+		break;
+
+	default:
+		nss_trace("%p: Invalid message type\n", npm);
+		break;
+	}
+}
+
+/*
+ * nss_pppoe_log_tx_msg()
+ *	Log messages transmitted to FW.
+ */
+void nss_pppoe_log_tx_msg(struct nss_pppoe_msg *npm)
+{
+	if (npm->cm.type >= NSS_PPPOE_MSG_MAX) {
+		nss_warning("%p: Invalid message type\n", npm);
+		return;
+	}
+
+	nss_info("%p: type[%d]:%s\n", npm, npm->cm.type, nss_pppoe_log_message_types_str[npm->cm.type]);
+	nss_pppoe_log_verbose(npm);
+}
+
+/*
+ * nss_pppoe_log_rx_msg()
+ *	Log messages received from FW.
+ */
+void nss_pppoe_log_rx_msg(struct nss_pppoe_msg *npm)
+{
+	if (npm->cm.response >= NSS_CMN_RESPONSE_LAST) {
+		nss_warning("%p: Invalid response\n", npm);
+		return;
+	}
+
+	if (npm->cm.response == NSS_CMN_RESPONSE_NOTIFY || (npm->cm.response == NSS_CMN_RESPONSE_ACK)) {
+		nss_info("%p: type[%d]:%s, response[%d]:%s\n", npm, npm->cm.type,
+			nss_pppoe_log_message_types_str[npm->cm.type],
+			npm->cm.response, nss_cmn_response_str[npm->cm.response]);
+		goto verbose;
+	}
+
+	nss_info("%p: msg nack - type[%d]:%s, response[%d]:%s\n",
+		npm, npm->cm.type, nss_pppoe_log_message_types_str[npm->cm.type],
+		npm->cm.response, nss_cmn_response_str[npm->cm.response]);
+
+verbose:
+	nss_pppoe_log_verbose(npm);
+}
diff --git a/nss_pppoe_log.h b/nss_pppoe_log.h
new file mode 100644
index 0000000..4636b08
--- /dev/null
+++ b/nss_pppoe_log.h
@@ -0,0 +1,41 @@
+/*
+ **************************************************************************
+ * Copyright (c) 2018, The Linux Foundation. All rights reserved.
+ * Permission to use, copy, modify, and/or distribute this software for
+ * any purpose with or without fee is hereby granted, provided that the
+ * above copyright notice and this permission notice appear in all copies.
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+ * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ **************************************************************************
+ */
+
+#ifndef __NSS_PPPOE_LOG_H
+#define __NSS_PPPOE_LOG_H
+
+/*
+ * nss_pppoe.h
+ *	NSS PPPOE header file.
+ */
+
+/*
+ * Logger APIs
+ */
+
+/*
+ * nss_pppoe_log_tx_msg
+ *	Logs a pppoe message that is sent to the NSS firmware.
+ */
+void nss_pppoe_log_tx_msg(struct nss_pppoe_msg *nim);
+
+/*
+ * nss_pppoe_log_rx_msg
+ *	Logs a pppoe message that is received from the NSS firmware.
+ */
+void nss_pppoe_log_rx_msg(struct nss_pppoe_msg *nim);
+
+#endif /* __NSS_PPPOE_LOG_H */