diff mbox series

[dpdk-dev,06/20] eventdev: add common initialize routine for eventmode devs

Message ID 1528478659-15859-7-git-send-email-anoob.joseph@caviumnetworks.com (mailing list archive)
State Changes Requested, archived
Delegated to: Jerin Jacob
Headers show
Series add eventmode helper functions | expand

Checks

Context Check Description
ci/checkpatch success coding style OK
ci/Intel-compilation fail apply issues

Commit Message

Anoob Joseph June 8, 2018, 5:24 p.m. UTC
Adding framework for common initialization routine for event mode.
Event mode would involve initialization of multiple devices, like
eventdev, ethdev etc and this routine would be the placeholder for all
initialization to come in.

Signed-off-by: Anoob Joseph <anoob.joseph@caviumnetworks.com>
---
 lib/librte_eventdev/rte_eventmode_helper.c | 49 ++++++++++++++++++++++++++++++
 lib/librte_eventdev/rte_eventmode_helper.h | 25 +++++++++++++++
 2 files changed, 74 insertions(+)
diff mbox series

Patch

diff --git a/lib/librte_eventdev/rte_eventmode_helper.c b/lib/librte_eventdev/rte_eventmode_helper.c
index ec014a6..f2c2b78 100644
--- a/lib/librte_eventdev/rte_eventmode_helper.c
+++ b/lib/librte_eventdev/rte_eventmode_helper.c
@@ -3,6 +3,7 @@ 
  */
 #include <getopt.h>
 
+#include <rte_ethdev.h>
 #include <rte_eventmode_helper.h>
 #include <rte_malloc.h>
 
@@ -152,3 +153,51 @@  rte_eventmode_helper_parse_args(int argc, char **argv)
 
 	return NULL;
 }
+
+int32_t
+rte_eventmode_helper_initialize_devs(
+		struct rte_eventmode_helper_conf *mode_conf)
+{
+	int ret;
+	uint16_t portid;
+
+	if (mode_conf == NULL) {
+		RTE_EM_HLPR_LOG_ERR("Invalid conf");
+		return -1;
+	}
+
+	if (mode_conf->mode != RTE_EVENTMODE_HELPER_PKT_TRANSFER_MODE_EVENT)
+		return 0;
+
+	if (mode_conf->mode_params == NULL) {
+		RTE_EM_HLPR_LOG_ERR("Invalid mode params");
+		return -1;
+	}
+
+	/* Stop eth devices before setting up adapter */
+	RTE_ETH_FOREACH_DEV(portid) {
+
+		/* Use only the ports enabled */
+		if ((mode_conf->eth_portmask & (1 << portid)) == 0)
+			continue;
+
+		rte_eth_dev_stop(portid);
+	}
+
+	/* Start eth devices after setting up adapter */
+	RTE_ETH_FOREACH_DEV(portid) {
+
+		/* Use only the ports enabled */
+		if ((mode_conf->eth_portmask & (1 << portid)) == 0)
+			continue;
+
+		ret = rte_eth_dev_start(portid);
+		if (ret < 0) {
+			RTE_EM_HLPR_LOG_ERR(
+				"Error starting eth dev %d", portid);
+			return -1;
+		}
+	}
+
+	return 0;
+}
diff --git a/lib/librte_eventdev/rte_eventmode_helper.h b/lib/librte_eventdev/rte_eventmode_helper.h
index 7500f0c..e1e8a3b 100644
--- a/lib/librte_eventdev/rte_eventmode_helper.h
+++ b/lib/librte_eventdev/rte_eventmode_helper.h
@@ -60,4 +60,29 @@  rte_eventmode_helper_print_options_description(void);
 struct rte_eventmode_helper_conf *
 rte_eventmode_helper_parse_args(int argc, char **argv);
 
+/* Helper functions for initialization, & launching workers */
+
+/**
+ * Initialize event mode devices
+ *
+ * Application could call this function to get the event device, eth device
+ * and eth rx adapter initialized according to the conf populated using the
+ * command line args.
+ *
+ * Application is expected to initialize the eth device and then the eventmode
+ * helper subsystem will stop & start eth device according to it's requirement.
+ * So call to this function should be done after the eth device is successfully
+ * initialized.
+ *
+ * @param mode_conf
+ *   Configuration of the mode in which app is doing packet handling
+ * @return
+ *  - 0 on success.
+ *  - (<0) on failure.
+ */
+int32_t
+rte_eventmode_helper_initialize_devs(
+		struct rte_eventmode_helper_conf *mode_conf);
+
+
 #endif /* _RTE_EVENTMODE_HELPER_H_ */