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From: Eugenio Pérez <eperezma@redhat.com>
To: dev@dpdk.org
Cc: Adrian Moreno Zapata <amorenoz@redhat.com>,
	Chenbo Xia <chenbo.xia@intel.com>,
	Zhihong Wang <zhihong.wang@intel.com>,
	Jens Freimann <jfreimann@redhat.com>,
	stable@dpdk.org, Maxime Coquelin <maxime.coquelin@redhat.com>,
	Kevin Traynor <ktraynor@redhat.com>
Subject: [dpdk-dev] [PATCH v2 1/1] vhost: fix iotlb mempool single-consumer flag
Date: Mon, 31 Aug 2020 09:59:22 +0200
Message-ID: <20200831075922.17970-2-eperezma@redhat.com> (raw)
In-Reply-To: <20200831075922.17970-1-eperezma@redhat.com>

Bugzilla bug: 523

Control thread (which handles iotlb msg) and forwarding
thread both use iotlb to translate address. The former may modify the
same entry of mempool and may cause a loop in iotlb_pending_entries
list.

Fixes: d012d1f293f4 ("vhost: add IOTLB helper functions")
Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
---
 lib/librte_vhost/iotlb.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/lib/librte_vhost/iotlb.c b/lib/librte_vhost/iotlb.c
index 5b3a0c090..e0b67721b 100644
--- a/lib/librte_vhost/iotlb.c
+++ b/lib/librte_vhost/iotlb.c
@@ -321,8 +321,7 @@ vhost_user_iotlb_init(struct virtio_net *dev, int vq_index)
 			IOTLB_CACHE_SIZE, sizeof(struct vhost_iotlb_entry), 0,
 			0, 0, NULL, NULL, NULL, socket,
 			MEMPOOL_F_NO_CACHE_ALIGN |
-			MEMPOOL_F_SP_PUT |
-			MEMPOOL_F_SC_GET);
+			MEMPOOL_F_SP_PUT);
 	if (!vq->iotlb_pool) {
 		VHOST_LOG_CONFIG(ERR,
 				"Failed to create IOTLB cache pool (%s)\n",
-- 
2.18.1


  reply	other threads:[~2020-08-31  7:59 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-10 14:11 [dpdk-dev] [PATCH 0/1] " Eugenio Pérez
2020-08-10 14:11 ` [dpdk-dev] [PATCH 1/1] " Eugenio Pérez
2020-08-25  9:17   ` Kevin Traynor
2020-08-26  6:28   ` Xia, Chenbo
2020-08-26 12:50     ` Eugenio Perez Martin
2020-08-27  1:20       ` Xia, Chenbo
2020-08-28 18:40   ` Jens Freimann
2020-08-18 14:21 ` [dpdk-dev] [PATCH 0/1] " Eugenio Perez Martin
2020-08-31  7:59 ` [dpdk-dev] [PATCH v2 0/1] vhost: Make iotlb mempool not single-consumer Eugenio Pérez
2020-08-31  7:59   ` Eugenio Pérez [this message]
2020-08-31 10:21     ` [dpdk-dev] [PATCH v2 1/1] vhost: fix iotlb mempool single-consumer flag Xia, Chenbo
2020-09-18  9:49     ` Maxime Coquelin
2020-09-18 12:29     ` Maxime Coquelin

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