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* [dpdk-dev] [PATCH] examples/l2fwd-event: set RSS based on device capabilities
@ 2019-12-16  5:37 pbhagavatula
  2019-12-16  5:46 ` Jerin Jacob
  2020-01-14  5:52 ` [dpdk-dev] [PATCH v2] examples/l2fwd-event: fix ethdev RSS setup pbhagavatula
  0 siblings, 2 replies; 5+ messages in thread
From: pbhagavatula @ 2019-12-16  5:37 UTC (permalink / raw)
  To: jerinj, Marko Kovacevic, Ori Kam, Bruce Richardson, Radu Nicolau,
	Akhil Goyal, Tomasz Kantecki, Sunil Kumar Kori, Pavan Nikhilesh
  Cc: dev, Satananda Burla

From: Pavan Nikhilesh <pbhagavatula@marvell.com>

Setup RSS configuration based on underlying device capabilities.

Signed-off-by: Satananda Burla <sburla@marvell.com>
Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
---
 examples/l2fwd-event/l2fwd_common.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/examples/l2fwd-event/l2fwd_common.c b/examples/l2fwd-event/l2fwd_common.c
index 0c069ec35..2fae6f52c 100644
--- a/examples/l2fwd-event/l2fwd_common.c
+++ b/examples/l2fwd-event/l2fwd_common.c
@@ -46,6 +46,17 @@ l2fwd_event_init_ports(struct l2fwd_resources *rsrc)
 		if (ret != 0)
 			rte_panic("Error during getting device (port %u) info: %s\n",
 				  port_id, strerror(-ret));
+		local_port_conf.rx_adv_conf.rss_conf.rss_hf &=
+			dev_info.flow_type_rss_offloads;
+		if (local_port_conf.rx_adv_conf.rss_conf.rss_hf !=
+				port_conf.rx_adv_conf.rss_conf.rss_hf) {
+			printf("Port %u modified RSS hash function based on hardware support,"
+			       "requested:%#"PRIx64" configured:%#"PRIx64"",
+				port_id,
+				port_conf.rx_adv_conf.rss_conf.rss_hf,
+				local_port_conf.rx_adv_conf.rss_conf.rss_hf);
+		}
+
 		if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
 			local_port_conf.txmode.offloads |=
 				DEV_TX_OFFLOAD_MBUF_FAST_FREE;
-- 
2.17.1


^ permalink raw reply	[flat|nested] 5+ messages in thread

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2019-12-16  5:37 [dpdk-dev] [PATCH] examples/l2fwd-event: set RSS based on device capabilities pbhagavatula
2019-12-16  5:46 ` Jerin Jacob
2020-01-13  9:34   ` Jerin Jacob
2020-01-14  5:52 ` [dpdk-dev] [PATCH v2] examples/l2fwd-event: fix ethdev RSS setup pbhagavatula
2020-01-14 20:37   ` Jerin Jacob

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