Attachment 1446541 Details for Bug 1578981 – Potential fix

[patch] Potential fix

0001-net-qede-fix-rss-hash-update.patch (text/plain), 1.18 KB, created by Rasesh Mody on 2018-06-01 06:59:28 UTC

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Creator: Rasesh Mody

Created: 2018-06-01 06:59:28 UTC

Size: 1.18 KB

patch

obsolete

>From 58c0c8988d9d48177c1fe4c85e46bf7ea14ed32e Mon Sep 17 00:00:00 2001
>From: Rasesh Mody <rasesh.mody@cavium.com>
>Date: Tue, 29 May 2018 13:45:29 -0700
>Subject: [PATCH] net/qede: fix rss hash update
>
>Fix to properly compute fast path array index which is used for passing
>L2 handles to RSS indirection table. Currently, its relying on the
>local copy of indirection table. When the RX queue configuration changes
>the local copy becomes invalid.
>
>Signed-off-by: Rasesh Mody <rasesh.mody@cavium.com>
>---
> drivers/net/qede/qede_ethdev.c |    2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
>diff --git a/drivers/net/qede/qede_ethdev.c b/drivers/net/qede/qede_ethdev.c
>index 3206cc6..6e9e76d 100644
>--- a/drivers/net/qede/qede_ethdev.c
>+++ b/drivers/net/qede/qede_ethdev.c
>@@ -2210,7 +2210,7 @@ int qede_rss_hash_update(struct rte_eth_dev *eth_dev,
> 	vport_update_params.vport_id = 0;
> 	/* pass the L2 handles instead of qids */
> 	for (i = 0 ; i < ECORE_RSS_IND_TABLE_SIZE ; i++) {
>-		idx = qdev->rss_ind_table[i];
>+		idx = ECORE_RSS_IND_TABLE_SIZE % QEDE_RSS_COUNT(qdev);
> 		rss_params.rss_ind_table[i] = qdev->fp_array[idx].rxq->handle;
> 	}
> 	vport_update_params.rss_params = &rss_params;
>-- 
>1.7.10.3
>

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