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From: Hernan Vargas <hernan.vargas@intel.com>
To: dev@dpdk.org, gakhil@marvell.com, trix@redhat.com,
	maxime.coquelin@redhat.com
Cc: nicolas.chautru@intel.com, qi.z.zhang@intel.com,
	Hernan Vargas <hernan.vargas@intel.com>,
	stable@dpdk.org
Subject: [PATCH v5 10/29] baseband/acc100: fix clearing PF IR outside handler
Date: Thu, 20 Oct 2022 22:20:43 -0700	[thread overview]
Message-ID: <20221021052102.107141-11-hernan.vargas@intel.com> (raw)
In-Reply-To: <20221021052102.107141-1-hernan.vargas@intel.com>

Clearing of PF info ring outside of handler may cause interrupt to be
missed.
A condition in the ACC100 PMD implementation may cause an interrupt
functional handler call to be missed due to related bit being cleared
when checking PF info ring status.

Fixes: 06531464151 ("baseband/acc100: support interrupt")
Cc: stable@dpdk.org

Signed-off-by: Hernan Vargas <hernan.vargas@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
---
 drivers/baseband/acc/rte_acc100_pmd.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/baseband/acc/rte_acc100_pmd.c b/drivers/baseband/acc/rte_acc100_pmd.c
index 7ec63dc470..3bb93a1e07 100644
--- a/drivers/baseband/acc/rte_acc100_pmd.c
+++ b/drivers/baseband/acc/rte_acc100_pmd.c
@@ -262,11 +262,12 @@ acc100_check_ir(struct acc_device *acc100_dev)
 	while (ring_data->valid) {
 		if ((ring_data->int_nb < ACC100_PF_INT_DMA_DL_DESC_IRQ) || (
 				ring_data->int_nb >
-				ACC100_PF_INT_DMA_DL5G_DESC_IRQ))
+				ACC100_PF_INT_DMA_DL5G_DESC_IRQ)) {
 			rte_bbdev_log(WARNING, "InfoRing: ITR:%d Info:0x%x",
 				ring_data->int_nb, ring_data->detailed_info);
-		/* Initialize Info Ring entry and move forward */
-		ring_data->val = 0;
+			/* Initialize Info Ring entry and move forward */
+			ring_data->val = 0;
+		}
 		info_ring_head++;
 		ring_data = acc100_dev->info_ring +
 				(info_ring_head & ACC_INFO_RING_MASK);
-- 
2.37.1


  parent reply	other threads:[~2022-10-20 21:24 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20221021052102.107141-1-hernan.vargas@intel.com>
2022-10-21  5:20 ` [PATCH v5 01/29] baseband/acc100: fix ring availability calculation Hernan Vargas
2022-10-21  9:04   ` Maxime Coquelin
2022-10-21  5:20 ` [PATCH v5 02/29] baseband/acc100: add function to check AQ availability Hernan Vargas
2022-10-21  9:07   ` Maxime Coquelin
2022-10-21  5:20 ` [PATCH v5 03/29] baseband/acc100: memory leak fix Hernan Vargas
2022-10-21  5:20 ` [PATCH v5 04/29] baseband/acc100: add LDPC encoder padding function Hernan Vargas
2022-10-21  5:20 ` [PATCH v5 05/29] baseband/acc100: check turbo dec/enc input Hernan Vargas
2022-10-21  5:20 ` [PATCH v5 06/29] baseband/acc100: check for unlikely operation vals Hernan Vargas
2022-10-21  5:20 ` [PATCH v5 07/29] baseband/acc100: enforce additional check on FCW Hernan Vargas
2022-10-21  9:08   ` Maxime Coquelin
2022-10-21  5:20 ` [PATCH v5 08/29] baseband/acc100: allocate ring/queue mem when NULL Hernan Vargas
2022-10-21  9:16   ` Maxime Coquelin
2022-10-21  5:20 ` [PATCH v5 09/29] baseband/acc100: reduce input length for CRC24B Hernan Vargas
2022-10-21  5:20 ` Hernan Vargas [this message]
2022-10-21  5:20 ` [PATCH v5 11/29] baseband/acc100: set device min alignment to 1 Hernan Vargas
2022-10-21  5:20 ` [PATCH v5 12/29] baseband/acc100: add protection for NULL HARQ input Hernan Vargas
2022-10-21  5:20 ` [PATCH v5 13/29] baseband/acc100: reset pointer after rte_free Hernan Vargas

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