From nobody Sun Feb 8 23:24:46 2026 Received: from mail-pg1-f201.google.com (mail-pg1-f201.google.com [209.85.215.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EF61F1E633C for ; Sat, 7 Feb 2026 01:17:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.215.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770427069; cv=none; b=PSMDSh6NQoWkWZX2SZjl/IJ0AMMEStwMbdF1d5oKvY5iVVi8E84tV1XkcDPCi/RSXxaf/9bU+cJrkke+tteuXmTlsls5gKHdkQBCtghACwbHt1JThBCriCxTDaWn0U9pwGDG6F58uVoovo3RMT9bAUX6jogaA07yywDhLrmjy0Q= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770427069; c=relaxed/simple; bh=n1FpuRLPegsOCgW5Ep3001MoHdtE0ua5INU+vaHadF0=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=YzGl1hg5StcE5vzAqUx7k0D/4/NOt8loUc8jIIc2S4NGbI8e+h6rk93NLAfwH3f+HXXtSTGuwdIFsLtADRv6jD0yixmZuy8gSi85GSfy8FAVygORo1spxXOqzPdFxEWCUja5EaVPMdtxEPN0m0fWaJaRAtqsoGcOMCWP67zAhU8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--joshwash.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=meE/v4m/; arc=none smtp.client-ip=209.85.215.201 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--joshwash.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="meE/v4m/" Received: by mail-pg1-f201.google.com with SMTP id 41be03b00d2f7-c56848e6f53so1589046a12.0 for ; Fri, 06 Feb 2026 17:17:48 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1770427068; x=1771031868; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=+Gk4dBgGZGggyHis2Av7BN/ugN1ReCsTcFsztI1UNdI=; b=meE/v4m/cSEFhZlgF8nKK7Y2OG6lQKUblSLGwn59MoUDXzUTmp+XREWuNmisSbo9Nr Bm853gCUc3xlcNX4s47CLBx01RIkT3fuyH4rhZY2PTchQjW0VdFz20FwyfgEK+7aZaA2 d/PjPXmZbiNQxnw6acUUVjSOen7Ca5pxj3Xafa3T2xIteoJPx/Pit00gNqc1sSpQbkvx M/MlGXx3hLu28e7PZT/y6zfp7gwtNGRX7hAO/j7EVtUSTlYkxX+/JKO/TK23CsIzdezl eing0cJyy+yv6TZ/Q8lrg2c/ah11kgbmaoOWK5DZYrBgOcrQZlyeZ9AO5E+6z8HEyBne xi4w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1770427068; x=1771031868; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=+Gk4dBgGZGggyHis2Av7BN/ugN1ReCsTcFsztI1UNdI=; b=u4cVN/tOzNCG1JJX+6JdbGw1Z9NSbwdj2TzhulXifeLt66GhlvUDWCNewnLjmKwhEJ oyjeAV3Kwj7pCVEFBKOGha0L4Q8txaBmTBqshavNconL2FfbBuR7kImzBUcrU1aRoCfM D5LBxlGYi3ygmaU4qSN7z5T6rabzYx0hV4eZ5YKppery2wsPn03ICkixJyt/lNpSM2q/ Lldxj/IUKgphiGDZ6gxh4dD3LQCj7a59UnXLuPyzmE4tjetGDzVfrh0rlXTA9hpdd/mN X0dkiBvcGWYJnn1KSTMQV/eee/WVWJPDPyDcWjMtZ4NSCB8pOT08TITAQMqefj80/pGf iUpg== X-Forwarded-Encrypted: i=1; AJvYcCXEtO/zs2+o1f/gwODOeHH+5uG/RgF5/a7kHkR7AJYeqcrJ/m0Iqfpr5jGtzMHoai8J41yxI4taVsmNfIY=@vger.kernel.org X-Gm-Message-State: AOJu0YxzBCn4MknTOBTGWTkTjfhXxmJWVAkV+YHe7jyggOFiEXpprc5U /u6NXrgmZ+QRcBWk3Hu/98iacXslf/ccsDmEVshlkVRDTJsLn37NNvuDObO6/g7HhjUcXa6mNBu iWOefmmlamqal2g== X-Received: from pfkk18.prod.google.com ([2002:aa7:90d2:0:b0:823:1090:870e]) (user=joshwash job=prod-delivery.src-stubby-dispatcher) by 2002:a05:6a00:12d7:b0:823:1094:243c with SMTP id d2e1a72fcca58-824417b3888mr4180465b3a.68.1770427068160; Fri, 06 Feb 2026 17:17:48 -0800 (PST) Date: Fri, 6 Feb 2026 17:17:33 -0800 In-Reply-To: <20260207011734.437205-1-joshwash@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20260207011734.437205-1-joshwash@google.com> X-Mailer: git-send-email 2.53.0.rc2.204.g2597b5adb4-goog Message-ID: <20260207011734.437205-3-joshwash@google.com> Subject: [PATCH net-next 2/2] gve: Enable reading max ring size from the device in DQO-QPL mode From: Joshua Washington To: netdev@vger.kernel.org Cc: Joshua Washington , Harshitha Ramamurthy , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Willem de Bruijn , Praveen Kaligineedi , Ziwei Xiao , John Fraker , Matt Olson , Bailey Forrest , Tim Hostetler , Jordan Rhee , linux-kernel@vger.kernel.org, Max Yuan Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Matt Olson The gVNIC device indicates a device option (MODIFY_RING) to the driver, which presents a range of ring sizes from which the user is allowed to select. But in DQO-QPL queue format, the driver ignores the "max" of this range and instead allows the user to configure the ring size in the range [min, default]. This was done because increasing the ring size could result in the number of registered pages being higher than the max allowed by the device. In order to support large ring sizes, stop ignoring the "max" of the range presented in the MODIFY_RING option. Signed-off-by: Matt Olson Signed-off-by: Max Yuan Reviewed-by: Jordan Rhee Reviewed-by: Harshitha Ramamurthy Reviewed-by: Praveen Kaligineedi Signed-off-by: Joshua Washington --- drivers/net/ethernet/google/gve/gve_adminq.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/drivers/net/ethernet/google/gve/gve_adminq.c b/drivers/net/eth= ernet/google/gve/gve_adminq.c index b1983f97..08587bf4 100644 --- a/drivers/net/ethernet/google/gve/gve_adminq.c +++ b/drivers/net/ethernet/google/gve/gve_adminq.c @@ -989,12 +989,10 @@ static void gve_enable_supported_features(struct gve_= priv *priv, if (dev_op_modify_ring && (supported_features_mask & GVE_SUP_MODIFY_RING_MASK)) { priv->modify_ring_size_enabled =3D true; - - /* max ring size for DQO QPL should not be overwritten because of device= limit */ - if (priv->queue_format !=3D GVE_DQO_QPL_FORMAT) { - priv->max_rx_desc_cnt =3D be16_to_cpu(dev_op_modify_ring->max_rx_ring_s= ize); - priv->max_tx_desc_cnt =3D be16_to_cpu(dev_op_modify_ring->max_tx_ring_s= ize); - } + priv->max_rx_desc_cnt =3D + be16_to_cpu(dev_op_modify_ring->max_rx_ring_size); + priv->max_tx_desc_cnt =3D + be16_to_cpu(dev_op_modify_ring->max_tx_ring_size); if (priv->default_min_ring_size) { /* If device hasn't provided minimums, use default minimums */ priv->min_tx_desc_cnt =3D GVE_DEFAULT_MIN_TX_RING_SIZE; --=20 2.53.0.239.g8d8fc8a987-goog