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From: Kevin Laatz <>
	Kevin Laatz <>
Subject: [dpdk-stable] [PATCH] raw/ioat: fix missing ring pointer reset
Date: Thu, 17 Jun 2021 14:18:15 +0000	[thread overview]
Message-ID: <> (raw)

In the event of a device reconfigure, "hdls_avail" is not being reset. This
can lead to miscalculations in rte_ioat_completed_ops(), causing the
function to report an incorrect amount of completed operations. This patch
fixes the issue by resetting "hdls_avail" during the device configure.

Fixes: 74464005a2af ("raw/ioat: rework SW ring layout")

Signed-off-by: Kevin Laatz <>
 drivers/raw/ioat/ioat_common.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/raw/ioat/ioat_common.c b/drivers/raw/ioat/ioat_common.c
index f4771745cc..60de41152a 100644
--- a/drivers/raw/ioat/ioat_common.c
+++ b/drivers/raw/ioat/ioat_common.c
@@ -174,6 +174,7 @@ idxd_dev_configure(const struct rte_rawdev *dev,
 	rte_idxd->hdls_read = rte_idxd->batch_start = 0;
 	rte_idxd->batch_size = 0;
+	rte_idxd->hdls_avail = 0;
 	return 0;

             reply	other threads:[~2021-06-17 14:18 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-17 14:18 Kevin Laatz [this message]
2021-06-17 14:21 ` Bruce Richardson
2021-06-22 21:12   ` Thomas Monjalon

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