[qca-nss-drv] PPE Logging

Change-Id: I67de8af18169a182f9df5df86d298b4c99f85696
Signed-off-by: Sachin Shashidhar <sshashid@codeaurora.org>
diff --git a/Makefile b/Makefile
index 14cc010..a89710d 100644
--- a/Makefile
+++ b/Makefile
@@ -78,6 +78,7 @@
 			nss_portid_log.o \
 			nss_portid_stats.o \
 			nss_ppe.o \
+			nss_ppe_log.o \
 			nss_ppe_stats.o \
 			nss_pppoe.o \
 			nss_pppoe_log.o \
diff --git a/Makefile.fsm b/Makefile.fsm
index 4659ce9..c4a3ad1 100644
--- a/Makefile.fsm
+++ b/Makefile.fsm
@@ -68,6 +68,7 @@
 			nss_portid_log.o \
 			nss_portid_stats.o \
 			nss_ppe.o \
+			nss_ppe_log.o \
 			nss_ppe_stats.o \
 			nss_pppoe.o \
 			nss_pppoe_log.o \
diff --git a/nss_ppe.c b/nss_ppe.c
index 7b0b20b..3dc5679 100644
--- a/nss_ppe.c
+++ b/nss_ppe.c
@@ -64,6 +64,11 @@
 	struct nss_cmn_msg *ncm = &msg->cm;
 
 	/*
+	 * Trace messages.
+	 */
+	nss_ppe_log_tx_msg(msg);
+
+	/*
 	 * Sanity check the message
 	 */
 	if (ncm->type >= NSS_PPE_MSG_MAX) {
@@ -243,6 +248,11 @@
 	BUG_ON(!nss_ppe_verify_ifnum(ncm->interface));
 
 	/*
+	 * Trace messages.
+	 */
+	nss_ppe_log_rx_msg(msg);
+
+	/*
 	 * Is this a valid request/response packet?
 	 */
 	if (ncm->type >= NSS_PPE_MSG_MAX) {
diff --git a/nss_ppe.h b/nss_ppe.h
index e127ee8..e0fda82 100644
--- a/nss_ppe.h
+++ b/nss_ppe.h
@@ -126,7 +126,8 @@
 	PPE_MSG_ERROR_IPSEC_PORT_CONFIG,
 	PPE_MSG_ERROR_IPSEC_INTF_TABLE_FULL,
 	PPE_MSG_ERROR_IPSEC_INTF_ATTACHED,
-	PPE_MSG_ERROR_IPSEC_INTF_UNATTACHED
+	PPE_MSG_ERROR_IPSEC_INTF_UNATTACHED,
+	PPE_ERROR_MAX
 };
 
 /**
@@ -418,3 +419,20 @@
 {
 	writel(val, (ppe_pvt.ppe_base + reg));
 }
+
+/*
+ * nss_ppe_log.h
+ *	NSS PPE Log Header File
+ */
+
+/*
+ * nss_ppe_log_tx_msg
+ *	Logs a ppe message that is sent to the NSS firmware.
+ */
+void nss_ppe_log_tx_msg(struct nss_ppe_msg *npm);
+
+/*
+ * nss_ppe_log_rx_msg
+ *	Logs a ppe message that is received from the NSS firmware.
+ */
+void nss_ppe_log_rx_msg(struct nss_ppe_msg *npm);
diff --git a/nss_ppe_log.c b/nss_ppe_log.c
new file mode 100644
index 0000000..e564c0b
--- /dev/null
+++ b/nss_ppe_log.c
@@ -0,0 +1,189 @@
+/*
+ **************************************************************************
+ * 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_ppe_log.c
+ *	NSS PPE logger file.
+ */
+
+#include "nss_core.h"
+#include "nss_ppe.h"
+
+/*
+ * nss_ppe_log_message_types_str
+ *	PPE message strings
+ */
+static int8_t *nss_ppe_log_message_types_str[NSS_PPE_MSG_MAX] __maybe_unused = {
+	"PPE Stats",
+	"PPE IPSEC Port Config",
+	"PPE IPSEC Port MTU Change",
+	"PPE IPSEC Add Interface",
+	"PPE IPSEC Del Interface",
+};
+
+/*
+ * nss_ppe_log_error_response_types_str
+ *	Strings for error types for PPE messages
+ */
+static int8_t *nss_ppe_log_error_response_types_str[PPE_ERROR_MAX] __maybe_unused = {
+	"PPE No Error",
+	"PPE Uknown Type",
+	"PPE Port Creation Failure",
+	"PPE Invalid Port VSI",
+	"PPE Invalid L3 Interface",
+	"PPE IPSEC Port Config Error",
+	"PPE IPSEC Interface Table Full",
+	"PPE IPSEC Interface Attached",
+	"PPE IPSEC Interface Unattached",
+};
+
+/*
+ * nss_ppe_log_port_config_msg()
+ *	Log NSS PPE port config message.
+ */
+static void nss_ppe_log_port_config_msg(struct nss_ppe_msg *npm)
+{
+	struct nss_ppe_ipsec_port_config_msg *npcm __maybe_unused = &npm->msg.ipsec_config;
+	nss_trace("%p: NSS PPE Port Configure Message:\n"
+		"PPE NSS Interface Number: %d\n"
+		"PPE MTU: %d\n"
+		"PPE VSI Number: %d\n",
+		npcm, npcm->nss_ifnum,
+		npcm->mtu, npcm->vsi_num);
+}
+
+/*
+ * nss_ppe_log_port_mtu_msg()
+ *	Log NSS PPE port mtu message.
+ */
+static void nss_ppe_log_port_mtu_msg(struct nss_ppe_msg *npm)
+{
+	struct nss_ppe_ipsec_port_mtu_msg *npmm __maybe_unused = &npm->msg.ipsec_mtu;
+	nss_trace("%p: NSS PPE Port Configure Message:\n"
+		"PPE NSS Interface Number: %d\n"
+		"PPE MTU: %d\n",
+		npmm, npmm->nss_ifnum,
+		npmm->mtu);
+}
+
+/*
+ * nss_ppe_log_add_intf_msg()
+ *	Log NSS PPE IPSEC Add Interface Message.
+ */
+static void nss_ppe_log_add_intf_msg(struct nss_ppe_msg *npm)
+{
+	struct nss_ppe_ipsec_add_intf_msg *npam __maybe_unused = &npm->msg.ipsec_addif;
+	nss_trace("%p: NSS PPE IPSEC add Interface Message:\n"
+		"PPE NSS Interface Number: %d\n",
+		npam, npam->nss_ifnum);
+}
+
+/*
+ * nss_ppe_log_del_intf_msg()
+ *	Log NSS PPE IPSEC Delete Interface Message.
+ */
+static void nss_ppe_log_del_intf_msg(struct nss_ppe_msg *npm)
+{
+	struct nss_ppe_ipsec_del_intf_msg *npdm __maybe_unused = &npm->msg.ipsec_delif;
+	nss_trace("%p: NSS PPE IPSEC Delete Interface Message:\n"
+		"PPE NSS Interface Number: %d\n",
+		npdm, npdm->nss_ifnum);
+}
+
+/*
+ * nss_ppe_log_verbose()
+ *	Log message contents.
+ */
+static void nss_ppe_log_verbose(struct nss_ppe_msg *npm)
+{
+	switch (npm->cm.type) {
+	case NSS_PPE_MSG_IPSEC_PORT_CONFIG:
+		nss_ppe_log_port_config_msg(npm);
+		break;
+
+	case NSS_PPE_MSG_IPSEC_PORT_MTU_CHANGE:
+		nss_ppe_log_port_mtu_msg(npm);
+		break;
+
+	case NSS_PPE_MSG_IPSEC_ADD_INTF:
+		nss_ppe_log_add_intf_msg(npm);
+		break;
+
+	case NSS_PPE_MSG_IPSEC_DEL_INTF:
+		nss_ppe_log_del_intf_msg(npm);
+		break;
+
+	case NSS_PPE_MSG_SYNC_STATS:
+		/*
+		 * No log for valid stats message.
+		 */
+		break;
+
+	default:
+		nss_warning("%p: Invalid message type\n", npm);
+		break;
+	}
+}
+
+/*
+ * nss_ppe_log_tx_msg()
+ *	Log messages transmitted to FW.
+ */
+void nss_ppe_log_tx_msg(struct nss_ppe_msg *npm)
+{
+	if (npm->cm.type >= NSS_PPE_MSG_MAX) {
+		nss_warning("%p: Invalid message type\n", npm);
+		return;
+	}
+
+	nss_info("%p: type[%d]:%s\n", npm, npm->cm.type, nss_ppe_log_message_types_str[npm->cm.type]);
+	nss_ppe_log_verbose(npm);
+}
+
+/*
+ * nss_ppe_log_rx_msg()
+ *	Log messages received from FW.
+ */
+void nss_ppe_log_rx_msg(struct nss_ppe_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_ppe_log_message_types_str[npm->cm.type],
+			npm->cm.response, nss_cmn_response_str[npm->cm.response]);
+		goto verbose;
+	}
+
+	if (npm->cm.error >= PPE_ERROR_MAX) {
+		nss_warning("%p: msg failure - type[%d]:%s, response[%d]:%s, error[%d]:Invalid error\n",
+			npm, npm->cm.type, nss_ppe_log_message_types_str[npm->cm.type],
+			npm->cm.response, nss_cmn_response_str[npm->cm.response],
+			npm->cm.error);
+		goto verbose;
+	}
+
+	nss_info("%p: msg nack - type[%d]:%s, response[%d]:%s, error[%d]:%s\n",
+		npm, npm->cm.type, nss_ppe_log_message_types_str[npm->cm.type],
+		npm->cm.response, nss_cmn_response_str[npm->cm.response],
+		npm->cm.error, nss_ppe_log_error_response_types_str[npm->cm.error]);
+
+verbose:
+	nss_ppe_log_verbose(npm);
+}