net/pcap: support dynamic logging

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>

diff --git a/drivers/net/pcap/rte_eth_pcap.c b/drivers/net/pcap/rte_eth_pcap.c
index 932cf3c..44c4d8e 100644 (file)
--- a/drivers/net/pcap/rte_eth_pcap.c
+++ b/drivers/net/pcap/rte_eth_pcap.c
@@ -99,6 +99,12 @@ static struct rte_eth_link pmd_link = {
                .link_autoneg = ETH_LINK_FIXED,
 };
 
+static int eth_pcap_logtype;
+
+#define PMD_LOG(level, fmt, args...) \
+       rte_log(RTE_LOG_ ## level, eth_pcap_logtype, \
+               "%s(): " fmt "\n", __func__, ##args)
+
 static int
 eth_pcap_rx_jumbo(struct rte_mempool *mb_pool, struct rte_mbuf *mbuf,
                const u_char *data, uint16_t data_len)
@@ -256,8 +262,8 @@ eth_pcap_tx_dumper(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
                                pcap_dump((u_char *)dumper_q->dumper, &header,
                                          tx_pcap_data);
                        } else {
-                               RTE_LOG(ERR, PMD,
-                                       "Dropping PCAP packet. Size (%d) > max jumbo size (%d).\n",
+                               PMD_LOG(ERR,
+                                       "Dropping PCAP packet. Size (%d) > max jumbo size (%d).",
                                        mbuf->pkt_len,
                                        ETHER_MAX_JUMBO_FRAME_LEN);
 
@@ -313,8 +319,8 @@ eth_pcap_tx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
                                ret = pcap_sendpacket(tx_queue->pcap,
                                                tx_pcap_data, mbuf->pkt_len);
                        } else {
-                               RTE_LOG(ERR, PMD,
-                                       "Dropping PCAP packet. Size (%d) > max jumbo size (%d).\n",
+                               PMD_LOG(ERR,
+                                       "Dropping PCAP packet. Size (%d) > max jumbo size (%d).",
                                        mbuf->pkt_len,
                                        ETHER_MAX_JUMBO_FRAME_LEN);
 
@@ -346,7 +352,7 @@ open_iface_live(const char *iface, pcap_t **pcap) {
                        RTE_ETH_PCAP_PROMISC, RTE_ETH_PCAP_TIMEOUT, errbuf);
 
        if (*pcap == NULL) {
-               RTE_LOG(ERR, PMD, "Couldn't open %s: %s\n", iface, errbuf);
+               PMD_LOG(ERR, "Couldn't open %s: %s", iface, errbuf);
                return -1;
        }
 
@@ -357,7 +363,7 @@ static int
 open_single_iface(const char *iface, pcap_t **pcap)
 {
        if (open_iface_live(iface, pcap) < 0) {
-               RTE_LOG(ERR, PMD, "Couldn't open interface %s\n", iface);
+               PMD_LOG(ERR, "Couldn't open interface %s", iface);
                return -1;
        }
 
@@ -376,7 +382,7 @@ open_single_tx_pcap(const char *pcap_filename, pcap_dumper_t **dumper)
         */
        tx_pcap = pcap_open_dead(DLT_EN10MB, RTE_ETH_PCAP_SNAPSHOT_LEN);
        if (tx_pcap == NULL) {
-               RTE_LOG(ERR, PMD, "Couldn't create dead pcap\n");
+               PMD_LOG(ERR, "Couldn't create dead pcap");
                return -1;
        }
 
@@ -384,7 +390,7 @@ open_single_tx_pcap(const char *pcap_filename, pcap_dumper_t **dumper)
        *dumper = pcap_dump_open(tx_pcap, pcap_filename);
        if (*dumper == NULL) {
                pcap_close(tx_pcap);
-               RTE_LOG(ERR, PMD, "Couldn't open %s for writing.\n",
+               PMD_LOG(ERR, "Couldn't open %s for writing.",
                        pcap_filename);
                return -1;
        }
@@ -398,7 +404,7 @@ open_single_rx_pcap(const char *pcap_filename, pcap_t **pcap)
 {
        *pcap = pcap_open_offline(pcap_filename, errbuf);
        if (*pcap == NULL) {
-               RTE_LOG(ERR, PMD, "Couldn't open %s: %s\n", pcap_filename,
+               PMD_LOG(ERR, "Couldn't open %s: %s", pcap_filename,
                        errbuf);
                return -1;
        }
@@ -776,7 +782,7 @@ pmd_init_internals(struct rte_vdev_device *vdev,
        struct rte_eth_dev_data *data;
        unsigned int numa_node = vdev->device.numa_node;
 
-       RTE_LOG(INFO, PMD, "Creating pcap-backed ethdev on numa socket %d\n",
+       PMD_LOG(INFO, "Creating pcap-backed ethdev on numa socket %d",
                numa_node);
 
        /* reserve an ethdev entry */
@@ -903,7 +909,7 @@ pmd_pcap_probe(struct rte_vdev_device *dev)
        int ret;
 
        name = rte_vdev_device_name(dev);
-       RTE_LOG(INFO, PMD, "Initializing pmd_pcap for %s\n", name);
+       PMD_LOG(INFO, "Initializing pmd_pcap for %s", name);
 
        gettimeofday(&start_time, NULL);
        start_cycles = rte_get_timer_cycles();
@@ -913,7 +919,7 @@ pmd_pcap_probe(struct rte_vdev_device *dev)
            strlen(rte_vdev_device_args(dev)) == 0) {
                eth_dev = rte_eth_dev_attach_secondary(name);
                if (!eth_dev) {
-                       RTE_LOG(ERR, PMD, "Failed to probe %s\n", name);
+                       PMD_LOG(ERR, "Failed to probe %s", name);
                        return -1;
                }
                /* TODO: request info from primary to set up Rx and Tx */
@@ -1009,7 +1015,7 @@ pmd_pcap_remove(struct rte_vdev_device *dev)
 {
        struct rte_eth_dev *eth_dev = NULL;
 
-       RTE_LOG(INFO, PMD, "Closing pcap ethdev on numa socket %d\n",
+       PMD_LOG(INFO, "Closing pcap ethdev on numa socket %d",
                        rte_socket_id());
 
        if (!dev)
@@ -1040,3 +1046,12 @@ RTE_PMD_REGISTER_PARAM_STRING(net_pcap,
        ETH_PCAP_RX_IFACE_ARG "=<ifc> "
        ETH_PCAP_TX_IFACE_ARG "=<ifc> "
        ETH_PCAP_IFACE_ARG "=<ifc>");
+
+RTE_INIT(eth_pcap_init_log);
+static void
+eth_pcap_init_log(void)
+{
+       eth_pcap_logtype = rte_log_register("pmd.net.pcap");
+       if (eth_pcap_logtype >= 0)
+               rte_log_set_level(eth_pcap_logtype, RTE_LOG_NOTICE);
+}