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From: Chaoyong He <chaoyong.he@corigine.com>
To: dev@dpdk.org
Cc: oss-drivers@corigine.com, Peng Zhang <peng.zhang@corigine.com>,
	chaoyong.he@corigine.com, stable@dpdk.org,
	Long Wu <long.wu@corigine.com>
Subject: [PATCH 18/23] net/nfp: add check for numbers of VF representor port
Date: Wed, 19 Jun 2024 17:58:25 +0800	[thread overview]
Message-ID: <20240619095830.3479757-19-chaoyong.he@corigine.com> (raw)
In-Reply-To: <20240619095830.3479757-1-chaoyong.he@corigine.com>

From: Peng Zhang <peng.zhang@corigine.com>

When the number of VF representor ports is bigger than
the number of VF ports, there will be segment fault.

Fix this by adding the check logic.

Fixes: e1124c4f8a45 ("net/nfp: add flower representor framework")
Cc: chaoyong.he@corigine.com
Cc: stable@dpdk.org

Signed-off-by: Peng Zhang <peng.zhang@corigine.com>
Reviewed-by: Chaoyong He <chaoyong.he@corigine.com>
Reviewed-by: Long Wu <long.wu@corigine.com>
---
 drivers/net/nfp/flower/nfp_flower_representor.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/nfp/flower/nfp_flower_representor.c b/drivers/net/nfp/flower/nfp_flower_representor.c
index e6fef45ddd..086dbc58e3 100644
--- a/drivers/net/nfp/flower/nfp_flower_representor.c
+++ b/drivers/net/nfp/flower/nfp_flower_representor.c
@@ -959,6 +959,11 @@ nfp_flower_repr_create(struct nfp_app_fw_flower *app_fw_flower,
 	app_fw_flower->num_phyport_reprs = pf_dev->total_phyports;
 	app_fw_flower->num_vf_reprs = eth_da.nb_representor_ports -
 			pf_dev->total_phyports - 1;
+	if (pf_dev->max_vfs != 0 && pf_dev->sriov_vf < app_fw_flower->num_vf_reprs) {
+		PMD_INIT_LOG(ERR, "The VF repr nums %d is bigger than VF nums %d",
+				app_fw_flower->num_vf_reprs, pf_dev->sriov_vf);
+		return -ERANGE;
+	}
 
 	PMD_INIT_LOG(INFO, "%d number of VF reprs", app_fw_flower->num_vf_reprs);
 	PMD_INIT_LOG(INFO, "%d number of phyport reprs", app_fw_flower->num_phyport_reprs);
-- 
2.39.1


      parent reply	other threads:[~2024-06-19  9:59 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20240619095830.3479757-1-chaoyong.he@corigine.com>
2024-06-19  9:58 ` [PATCH 01/23] net/nfp: fix dereference of null pointer Chaoyong He
2024-07-07 18:56   ` Ferruh Yigit
2024-07-08  1:35     ` Chaoyong He
2024-06-19  9:58 ` [PATCH 02/23] net/nfp: disable ctrl VNIC queues Chaoyong He
2024-06-19  9:58 ` [PATCH 03/23] net/nfp: fix dereference of null pointer Chaoyong He
2024-06-19  9:58 ` [PATCH 04/23] net/nfp: fix repeat disable the port Chaoyong He
2024-06-19  9:58 ` [PATCH 05/23] net/nfp: fix repeat set the speed configure Chaoyong He
2024-06-19  9:58 ` Chaoyong He [this message]

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