From: Junfeng Guo <junfeng.guo@intel.com>
To: qi.z.zhang@intel.com, jingjing.wu@intel.com, beilei.xing@intel.com
Cc: dev@dpdk.org, xiao.w.wang@intel.com, junfeng.guo@intel.com
Subject: [RFC 3/3] net/idpf: adjust RSS LUT to exclude hairpin queue
Date: Mon, 5 Sep 2022 19:30:31 +0800 [thread overview]
Message-ID: <20220905113031.3223290-4-junfeng.guo@intel.com> (raw)
In-Reply-To: <20220905113031.3223290-1-junfeng.guo@intel.com>
RSS should direct traffic only to the normal data Rx queues, so when
hairpin queue configured, RSS LUT should be adjusted to exclude
the hairpin queue.
Signed-off-by: Xiao Wang <xiao.w.wang@intel.com>
Signed-off-by: Junfeng Guo <junfeng.guo@intel.com>
---
drivers/net/idpf/idpf_ethdev.c | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/drivers/net/idpf/idpf_ethdev.c b/drivers/net/idpf/idpf_ethdev.c
index aaca6f4202..fc9663d32e 100644
--- a/drivers/net/idpf/idpf_ethdev.c
+++ b/drivers/net/idpf/idpf_ethdev.c
@@ -625,9 +625,28 @@ idpf_config_rx_queues_irqs(struct rte_eth_dev *dev)
return -1;
}
+static int
+idpf_config_rss_lut(struct idpf_vport *vport, uint16_t nb_q)
+{
+ uint16_t lut_size = vport->rss_lut_size;
+ uint16_t i;
+ int ret;
+
+ for (i = 0; i < lut_size; i++)
+ vport->rss_lut[i] = i % nb_q;
+
+ ret = idpf_set_rss_lut(vport);
+ if (ret)
+ PMD_INIT_LOG(ERR, "Failed to configure RSS lut");
+
+ return ret;
+}
+
static int
idpf_start_queues(struct rte_eth_dev *dev)
{
+ struct idpf_vport *vport = (struct idpf_vport *)dev->data->dev_private;
+ uint16_t nb_rxq = dev->data->nb_rx_queues;
struct idpf_rx_queue *rxq;
struct idpf_tx_queue *txq;
int err = 0;
@@ -671,6 +690,11 @@ idpf_start_queues(struct rte_eth_dev *dev)
}
}
+ /* RSS only to the data queues */
+ rxq = dev->data->rx_queues[nb_rxq - 1];
+ if (nb_rxq > 1 && rxq && rxq->hairpin_q)
+ err = idpf_config_rss_lut(vport, nb_rxq - 1);
+
return err;
}
--
2.25.1
prev parent reply other threads:[~2022-09-05 11:31 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-05 11:30 [RFC 0/3] enable " Junfeng Guo
2022-09-05 11:30 ` [RFC 1/3] net/idpf: add support for CPF Junfeng Guo
2022-09-26 8:42 ` [RFC v2 0/3] enable hairpin queue Junfeng Guo
2022-09-26 8:42 ` [RFC v2 1/3] net/idpf: add support for CPF Junfeng Guo
2022-09-26 8:42 ` [RFC v2 2/3] net/idpf: add support for hairpin queue Junfeng Guo
2022-09-26 8:42 ` [RFC v2 3/3] net/idpf: adjust RSS LUT to exclude " Junfeng Guo
2022-09-05 11:30 ` [RFC 2/3] net/idpf: add support for " Junfeng Guo
2022-09-05 11:30 ` Junfeng Guo [this message]
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