[dpdk-dev] [PATCH v2 37/39] examples/rxtx_callbacks: convert to new ethdev offloads API

Shahaf Shuler shahafs at mellanox.com
Tue Dec 12 13:35:30 CET 2017


Ethdev offloads API has changed since:

commit ce17eddefc20 ("ethdev: introduce Rx queue offloads API")
commit cba7f53b717d ("ethdev: introduce Tx queue offloads API")

This commit support the new API.

Signed-off-by: Shahaf Shuler <shahafs at mellanox.com>
Acked-by: Bruce Richardson <bruce.richardson at intel.com>
---
 examples/rxtx_callbacks/main.c | 31 +++++++++++++++++++++++++++++--
 1 file changed, 29 insertions(+), 2 deletions(-)

diff --git a/examples/rxtx_callbacks/main.c b/examples/rxtx_callbacks/main.c
index ca135d2..0f563f2 100644
--- a/examples/rxtx_callbacks/main.c
+++ b/examples/rxtx_callbacks/main.c
@@ -47,7 +47,13 @@
 #define BURST_SIZE 32
 
 static const struct rte_eth_conf port_conf_default = {
-	.rxmode = { .max_rx_pkt_len = ETHER_MAX_LEN, },
+	.rxmode = {
+		.max_rx_pkt_len = ETHER_MAX_LEN,
+		.ignore_offload_bitfield = 1,
+	},
+	.txmode = {
+		.offloads = DEV_TX_OFFLOAD_MBUF_FAST_FREE,
+	},
 };
 
 static unsigned nb_ports;
@@ -105,10 +111,28 @@
 	uint16_t nb_txd = TX_RING_SIZE;
 	int retval;
 	uint16_t q;
+	struct rte_eth_dev_info dev_info;
+	struct rte_eth_txconf txconf;
 
 	if (port >= rte_eth_dev_count())
 		return -1;
 
+	rte_eth_dev_info_get(port, &dev_info);
+	if ((dev_info.rx_offload_capa & port_conf.rxmode.offloads) !=
+	    port_conf.rxmode.offloads) {
+		printf("Some Rx offloads are not supported "
+		       "by port %d: requested 0x%lx supported 0x%lx\n",
+		       port, port_conf.rxmode.offloads,
+		       dev_info.rx_offload_capa);
+	}
+	if ((dev_info.tx_offload_capa & port_conf.txmode.offloads) !=
+	    port_conf.txmode.offloads) {
+		printf("Some Tx offloads are not supported "
+		       "by port %d: requested 0x%lx supported 0x%lx\n",
+		       port, port_conf.txmode.offloads,
+		       dev_info.tx_offload_capa);
+	}
+
 	retval = rte_eth_dev_configure(port, rx_rings, tx_rings, &port_conf);
 	if (retval != 0)
 		return retval;
@@ -124,9 +148,12 @@
 			return retval;
 	}
 
+	txconf = dev_info.default_txconf;
+	txconf.txq_flags = ETH_TXQ_FLAGS_IGNORE;
+	txconf.offloads = port_conf.txmode.offloads;
 	for (q = 0; q < tx_rings; q++) {
 		retval = rte_eth_tx_queue_setup(port, q, nb_txd,
-				rte_eth_dev_socket_id(port), NULL);
+				rte_eth_dev_socket_id(port), &txconf);
 		if (retval < 0)
 			return retval;
 	}
-- 
1.8.3.1



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