[dpdk-dev] [RFC 2/8] pdump: use dynamic logtype

[Stephen Hemminger <stephen@networkplumber.org>]

The logtype USER1 should not be overloaded for library function.
Instead use a dynamic log type.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 lib/librte_pdump/rte_pdump.c | 68 ++++++++++++++++++++----------------
 1 file changed, 38 insertions(+), 30 deletions(-)

diff --git a/lib/librte_pdump/rte_pdump.c b/lib/librte_pdump/rte_pdump.c
index c665cf237f65..cfb8be7ca227 100644
--- a/lib/librte_pdump/rte_pdump.c
+++ b/lib/librte_pdump/rte_pdump.c
@@ -13,8 +13,12 @@
 #include "rte_pdump.h"
 
 #define DEVICE_ID_SIZE 64
-/* Macros for printing using RTE_LOG */
-#define RTE_LOGTYPE_PDUMP RTE_LOGTYPE_USER1
+
+/* Macro for printing using RTE_LOG */
+static int pdump_logtype;
+#define PDUMP_LOG(level, fmt, args...)				\
+	rte_log(RTE_LOG_ ## level, pdump_logtype, "%s(): " fmt,	\
+		__func__, ## args)
 
 /* Used for the multi-process communication */
 #define PDUMP_MP	"mp_pdump"
@@ -88,7 +92,7 @@ pdump_copy(struct rte_mbuf **pkts, uint16_t nb_pkts, void *user_params)
 
 	ring_enq = rte_ring_enqueue_burst(ring, (void *)dup_bufs, d_pkts, NULL);
 	if (unlikely(ring_enq < d_pkts)) {
-		RTE_LOG(DEBUG, PDUMP,
+		PDUMP_LOG(DEBUG,
 			"only %d of packets enqueued to ring\n", ring_enq);
 		do {
 			rte_pktmbuf_free(dup_bufs[ring_enq]);
@@ -127,7 +131,7 @@ pdump_register_rx_callbacks(uint16_t end_q, uint16_t port, uint16_t queue,
 		cbs = &rx_cbs[port][qid];
 		if (cbs && operation == ENABLE) {
 			if (cbs->cb) {
-				RTE_LOG(ERR, PDUMP,
+				PDUMP_LOG(ERR,
 					"failed to add rx callback for port=%d "
 					"and queue=%d, callback already exists\n",
 					port, qid);
@@ -138,7 +142,7 @@ pdump_register_rx_callbacks(uint16_t end_q, uint16_t port, uint16_t queue,
 			cbs->cb = rte_eth_add_first_rx_callback(port, qid,
 								pdump_rx, cbs);
 			if (cbs->cb == NULL) {
-				RTE_LOG(ERR, PDUMP,
+				PDUMP_LOG(ERR,
 					"failed to add rx callback, errno=%d\n",
 					rte_errno);
 				return rte_errno;
@@ -148,7 +152,7 @@ pdump_register_rx_callbacks(uint16_t end_q, uint16_t port, uint16_t queue,
 			int ret;
 
 			if (cbs->cb == NULL) {
-				RTE_LOG(ERR, PDUMP,
+				PDUMP_LOG(ERR,
 					"failed to delete non existing rx "
 					"callback for port=%d and queue=%d\n",
 					port, qid);
@@ -156,7 +160,7 @@ pdump_register_rx_callbacks(uint16_t end_q, uint16_t port, uint16_t queue,
 			}
 			ret = rte_eth_remove_rx_callback(port, qid, cbs->cb);
 			if (ret < 0) {
-				RTE_LOG(ERR, PDUMP,
+				PDUMP_LOG(ERR,
 					"failed to remove rx callback, errno=%d\n",
 					-ret);
 				return ret;
@@ -182,7 +186,7 @@ pdump_register_tx_callbacks(uint16_t end_q, uint16_t port, uint16_t queue,
 		cbs = &tx_cbs[port][qid];
 		if (cbs && operation == ENABLE) {
 			if (cbs->cb) {
-				RTE_LOG(ERR, PDUMP,
+				PDUMP_LOG(ERR,
 					"failed to add tx callback for port=%d "
 					"and queue=%d, callback already exists\n",
 					port, qid);
@@ -193,7 +197,7 @@ pdump_register_tx_callbacks(uint16_t end_q, uint16_t port, uint16_t queue,
 			cbs->cb = rte_eth_add_tx_callback(port, qid, pdump_tx,
 								cbs);
 			if (cbs->cb == NULL) {
-				RTE_LOG(ERR, PDUMP,
+				PDUMP_LOG(ERR,
 					"failed to add tx callback, errno=%d\n",
 					rte_errno);
 				return rte_errno;
@@ -203,7 +207,7 @@ pdump_register_tx_callbacks(uint16_t end_q, uint16_t port, uint16_t queue,
 			int ret;
 
 			if (cbs->cb == NULL) {
-				RTE_LOG(ERR, PDUMP,
+				PDUMP_LOG(ERR,
 					"failed to delete non existing tx "
 					"callback for port=%d and queue=%d\n",
 					port, qid);
@@ -211,7 +215,7 @@ pdump_register_tx_callbacks(uint16_t end_q, uint16_t port, uint16_t queue,
 			}
 			ret = rte_eth_remove_tx_callback(port, qid, cbs->cb);
 			if (ret < 0) {
-				RTE_LOG(ERR, PDUMP,
+				PDUMP_LOG(ERR,
 					"failed to remove tx callback, errno=%d\n",
 					-ret);
 				return ret;
@@ -240,7 +244,7 @@ set_pdump_rxtx_cbs(const struct pdump_request *p)
 		ret = rte_eth_dev_get_port_by_name(p->data.en_v1.device,
 				&port);
 		if (ret < 0) {
-			RTE_LOG(ERR, PDUMP,
+			PDUMP_LOG(ERR,
 				"failed to get port id for device id=%s\n",
 				p->data.en_v1.device);
 			return -EINVAL;
@@ -252,7 +256,7 @@ set_pdump_rxtx_cbs(const struct pdump_request *p)
 		ret = rte_eth_dev_get_port_by_name(p->data.dis_v1.device,
 				&port);
 		if (ret < 0) {
-			RTE_LOG(ERR, PDUMP,
+			PDUMP_LOG(ERR,
 				"failed to get port id for device id=%s\n",
 				p->data.dis_v1.device);
 			return -EINVAL;
@@ -270,18 +274,18 @@ set_pdump_rxtx_cbs(const struct pdump_request *p)
 		nb_rx_q = dev_info.nb_rx_queues;
 		nb_tx_q = dev_info.nb_tx_queues;
 		if (nb_rx_q == 0 && flags & RTE_PDUMP_FLAG_RX) {
-			RTE_LOG(ERR, PDUMP,
+			PDUMP_LOG(ERR,
 				"number of rx queues cannot be 0\n");
 			return -EINVAL;
 		}
 		if (nb_tx_q == 0 && flags & RTE_PDUMP_FLAG_TX) {
-			RTE_LOG(ERR, PDUMP,
+			PDUMP_LOG(ERR,
 				"number of tx queues cannot be 0\n");
 			return -EINVAL;
 		}
 		if ((nb_tx_q == 0 || nb_rx_q == 0) &&
 			flags == RTE_PDUMP_FLAG_RXTX) {
-			RTE_LOG(ERR, PDUMP,
+			PDUMP_LOG(ERR,
 				"both tx&rx queues must be non zero\n");
 			return -EINVAL;
 		}
@@ -317,7 +321,7 @@ pdump_server(const struct rte_mp_msg *mp_msg, const void *peer)
 
 	/* recv client requests */
 	if (mp_msg->len_param != sizeof(*cli_req)) {
-		RTE_LOG(ERR, PDUMP, "failed to recv from client\n");
+		PDUMP_LOG(ERR, "failed to recv from client\n");
 		resp->err_value = -EINVAL;
 	} else {
 		cli_req = (const struct pdump_request *)mp_msg->param;
@@ -330,8 +334,8 @@ pdump_server(const struct rte_mp_msg *mp_msg, const void *peer)
 	mp_resp.len_param = sizeof(*resp);
 	mp_resp.num_fds = 0;
 	if (rte_mp_reply(&mp_resp, peer) < 0) {
-		RTE_LOG(ERR, PDUMP, "failed to send to client:%s, %s:%d\n",
-			strerror(rte_errno), __func__, __LINE__);
+		PDUMP_LOG(ERR, "failed to send to client:%s\n",
+			  strerror(rte_errno));
 		return -1;
 	}
 
@@ -359,19 +363,18 @@ static int
 pdump_validate_ring_mp(struct rte_ring *ring, struct rte_mempool *mp)
 {
 	if (ring == NULL || mp == NULL) {
-		RTE_LOG(ERR, PDUMP, "NULL ring or mempool are passed %s:%d\n",
-			__func__, __LINE__);
+		PDUMP_LOG(ERR, "NULL ring or mempool\n");
 		rte_errno = EINVAL;
 		return -1;
 	}
 	if (mp->flags & MEMPOOL_F_SP_PUT || mp->flags & MEMPOOL_F_SC_GET) {
-		RTE_LOG(ERR, PDUMP, "mempool with either SP or SC settings"
+		PDUMP_LOG(ERR, "mempool with either SP or SC settings"
 		" is not valid for pdump, should have MP and MC settings\n");
 		rte_errno = EINVAL;
 		return -1;
 	}
 	if (ring->prod.single || ring->cons.single) {
-		RTE_LOG(ERR, PDUMP, "ring with either SP or SC settings"
+		PDUMP_LOG(ERR, "ring with either SP or SC settings"
 		" is not valid for pdump, should have MP and MC settings\n");
 		rte_errno = EINVAL;
 		return -1;
@@ -385,7 +388,7 @@ pdump_validate_flags(uint32_t flags)
 {
 	if (flags != RTE_PDUMP_FLAG_RX && flags != RTE_PDUMP_FLAG_TX &&
 		flags != RTE_PDUMP_FLAG_RXTX) {
-		RTE_LOG(ERR, PDUMP,
+		PDUMP_LOG(ERR,
 			"invalid flags, should be either rx/tx/rxtx\n");
 		rte_errno = EINVAL;
 		return -1;
@@ -400,17 +403,15 @@ pdump_validate_port(uint16_t port, char *name)
 	int ret = 0;
 
 	if (port >= RTE_MAX_ETHPORTS) {
-		RTE_LOG(ERR, PDUMP, "Invalid port id %u, %s:%d\n", port,
-			__func__, __LINE__);
+		PDUMP_LOG(ERR, "Invalid port id %u\n", port);
 		rte_errno = EINVAL;
 		return -1;
 	}
 
 	ret = rte_eth_dev_get_name_by_port(port, name);
 	if (ret < 0) {
-		RTE_LOG(ERR, PDUMP,
-			"port id to name mapping failed for port id=%u, %s:%d\n",
-			port, __func__, __LINE__);
+		PDUMP_LOG(ERR, "port %u to name mapping failed\n",
+			  port);
 		rte_errno = EINVAL;
 		return -1;
 	}
@@ -465,7 +466,7 @@ pdump_prepare_client_request(char *device, uint16_t queue,
 	}
 
 	if (ret < 0)
-		RTE_LOG(ERR, PDUMP,
+		PDUMP_LOG(ERR,
 			"client request for pdump enable/disable failed\n");
 	return ret;
 }
@@ -552,3 +553,10 @@ rte_pdump_disable_by_deviceid(char *device_id, uint16_t queue,
 
 	return ret;
 }
+
+RTE_INIT(pdump_log)
+{
+	pdump_logtype = rte_log_register("lib.pdump");
+	if (pdump_logtype >= 0)
+		rte_log_set_level(pdump_logtype, RTE_LOG_NOTICE);
+}
-- 
2.20.1