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([2401:4900:1c07:c7d3:fdc9:5e8f:28db:7f80]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2909930a756sm67193955ad.14.2025.10.17.08.19.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 17 Oct 2025 08:19:24 -0700 (PDT) From: Prabhakar X-Google-Original-From: Prabhakar To: =?UTF-8?q?Niklas=20S=C3=B6derlund?= , Paul Barker , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Geert Uytterhoeven , Mitsuhiro Kimura Cc: netdev@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-kernel@vger.kernel.org, Prabhakar , Biju Das , Fabrizio Castro , Lad Prabhakar , stable@vger.kernel.org, =?UTF-8?q?Niklas=20S=C3=B6derlund?= Subject: [PATCH v2 2/4] net: ravb: Allocate correct number of queues based on SoC support Date: Fri, 17 Oct 2025 16:18:28 +0100 Message-ID: <20251017151830.171062-3-prabhakar.mahadev-lad.rj@bp.renesas.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20251017151830.171062-1-prabhakar.mahadev-lad.rj@bp.renesas.com> References: <20251017151830.171062-1-prabhakar.mahadev-lad.rj@bp.renesas.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable From: Lad Prabhakar On SoCs that only support the best-effort queue and not the network control queue, calling alloc_etherdev_mqs() with fixed values for TX/RX queues is not appropriate. Use the nc_queues flag from the per-SoC match data to determine whether the network control queue is available, and fall back to a single TX/RX queue when it is not. This ensures correct queue allocation across all supported SoCs. Fixes: a92f4f0662bf ("ravb: Add nc_queue to struct ravb_hw_info") Cc: stable@vger.kernel.org Signed-off-by: Lad Prabhakar Reviewed-by: Niklas S=C3=B6derlund --- v1->v2: - Added Reviewed-by tag from Niklas. --- drivers/net/ethernet/renesas/ravb_main.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/etherne= t/renesas/ravb_main.c index 69d382e8757d..a200e205825a 100644 --- a/drivers/net/ethernet/renesas/ravb_main.c +++ b/drivers/net/ethernet/renesas/ravb_main.c @@ -2926,13 +2926,14 @@ static int ravb_probe(struct platform_device *pdev) return dev_err_probe(&pdev->dev, PTR_ERR(rstc), "failed to get cpg reset\n"); =20 + info =3D of_device_get_match_data(&pdev->dev); + ndev =3D alloc_etherdev_mqs(sizeof(struct ravb_private), - NUM_TX_QUEUE, NUM_RX_QUEUE); + info->nc_queues ? NUM_TX_QUEUE : 1, + info->nc_queues ? NUM_RX_QUEUE : 1); if (!ndev) return -ENOMEM; =20 - info =3D of_device_get_match_data(&pdev->dev); - ndev->features =3D info->net_features; ndev->hw_features =3D info->net_hw_features; ndev->vlan_features =3D info->vlan_features; --=20 2.43.0