From nobody Sun Dec 14 19:54:47 2025 Received: from mail-pg1-f202.google.com (mail-pg1-f202.google.com [209.85.215.202]) (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 517E920C001 for ; Thu, 8 May 2025 00:48:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.215.202 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746665327; cv=none; b=mzc1GxYUx7kWWZyzU/eJFXMhbW3JPyCI5xu8+ZK90bkqQ7S3EnuMupUflEXCpvquZ5xdUFf54uX+kNMXHlf7a3TslBFhSO4jih0LGjhVQOLM14DQd4onHuf2Q7YWJ8nh/tpFDgY3iJWKl3NeK3k0cUzAJ6dHkgthX8lSxvI435M= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746665327; c=relaxed/simple; bh=4kwdISEystgWEKePbbRF2THmEECNez1671J+/5yKtH8=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=t7oj7zTy+ruXN0mO6AzbKFRtuQbW7gaJNf0YFb8+Nxmh31y6Vv/Q688QJ6B8AeWuvR5mHfYmdisIHD3Sll3SX1z+/Qdf0AVbMJVyIvfoR9rWmahb/z8begHE+LpidvWBVDYBpkUvuSKGR+YgGSyofLNu3yJmnK8mX1u6t5DiXHw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--almasrymina.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=T/4RuUKx; arc=none smtp.client-ip=209.85.215.202 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--almasrymina.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="T/4RuUKx" Received: by mail-pg1-f202.google.com with SMTP id 41be03b00d2f7-b1f8d149911so385299a12.0 for ; Wed, 07 May 2025 17:48:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1746665324; x=1747270124; 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=fKVG3k7BfSyXp7F9y9MTAXbc4VLGhRFH8VNtONiymIg=; b=T/4RuUKxxavIHLoQFuXcF6Hy5PhRjzQfC660kOuCBrEUxIsgjwsHpWlJfdw1DFvXHL rOoaROnVQUE+YrVJ4Kf6z+yHtHKJTgnygmkZJqXlHLwkKnH/c2aVqiBJ3BwSwM7RhRag MCawIj16lbZBoyMz7nSZ49BrBKWuWBtWAlGjiLhDFhjF4NPVmwD4RUP0zFBPqJ90sZU7 6OuQgURPpEYGcogz/fMJOk1a1BzHD6EncsI7vJJhBAXnlXFuBLBs3cuWkv/qincL9iPx +E1tcvGEeuLiiSqkZ2k/wJmqHPrs98SAWXEvJHkrG4nfUpZvBKIZPEuilWfeEgeUYQTD 8bMg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1746665324; x=1747270124; 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=fKVG3k7BfSyXp7F9y9MTAXbc4VLGhRFH8VNtONiymIg=; b=g/JbfK/l3l3S8qLpDTG/6fiX/NA9PYnF5iM9U6pYGb96EZ4BUNzPVjThwg5HyjgFO7 CvMKY86t9M5kOMHm35hPIEzS1nVyH5USldw0HVr1fDWhkz+vrOdA4ivWxwejkdyFjoW2 bvndD+K/ejdf6DBWiM4WvuM6A1nY2Ut+0ksOJ2BZAVSKSzQt4iYaJ0cvWEbGyq6loz++ oQSpIo7G1FtboWAygnfhTq7U1iw2KCkTgRDmVll4bo42azw2OhvUDQM7L21jgOTPVuNO GLCD0ovI3DFXLRwCke4KbAn3mbwtyqxtHr0HD8RMZyL4ERbI2xdAzdtQzq/Ad222uo5a r7Cg== X-Forwarded-Encrypted: i=1; AJvYcCVjl3KPZwyBz9ZBge/GL8K1xIStbhLXAZ1I5PdebrxXabu7Hc29P5wmDzhcmGhKj6NsyCncSJ3idwTraG4=@vger.kernel.org X-Gm-Message-State: AOJu0YyhGotazuoV2M9l3N7ebiK0fXUXtkX+F9UARxsKKg1615erw/Vr U9e6oVBp5Gx9pRsHlvSCP4dNRCacEt/8x4Op4PGQaAafSV8Q2keFkr9Gu0wcN9KSqT8cQ+8cNQ6 U33AwLJW+X/AQBRliW9WaOA== X-Google-Smtp-Source: AGHT+IFFw2brHOWPU8H1Vk3K/EfTitU5gdXdRhglmyZlG1uOqexHur9VD1hlW9PlU+j+XdGKdr+P6x47mYNlHtIPMw== X-Received: from pjbsp16.prod.google.com ([2002:a17:90b:52d0:b0:301:1ea9:63b0]) (user=almasrymina job=prod-delivery.src-stubby-dispatcher) by 2002:a17:903:188:b0:223:65a9:ab86 with SMTP id d9443c01a7336-22e5ea5514cmr87432985ad.12.1746665324471; Wed, 07 May 2025 17:48:44 -0700 (PDT) Date: Thu, 8 May 2025 00:48:27 +0000 In-Reply-To: <20250508004830.4100853-1-almasrymina@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20250508004830.4100853-1-almasrymina@google.com> X-Mailer: git-send-email 2.49.0.987.g0cc8ee98dc-goog Message-ID: <20250508004830.4100853-8-almasrymina@google.com> Subject: [PATCH net-next v14 7/9] gve: add netmem TX support to GVE DQO-RDA mode From: Mina Almasry To: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, io-uring@vger.kernel.org, virtualization@lists.linux.dev, kvm@vger.kernel.org, linux-kselftest@vger.kernel.org Cc: Mina Almasry , Donald Hunter , Jakub Kicinski , "David S. Miller" , Eric Dumazet , Paolo Abeni , Simon Horman , Jonathan Corbet , Andrew Lunn , Jeroen de Borst , Harshitha Ramamurthy , Kuniyuki Iwashima , Willem de Bruijn , Jens Axboe , Pavel Begunkov , David Ahern , Neal Cardwell , "Michael S. Tsirkin" , Jason Wang , Xuan Zhuo , "=?UTF-8?q?Eugenio=20P=C3=A9rez?=" , Stefan Hajnoczi , Stefano Garzarella , Shuah Khan , sdf@fomichev.me, dw@davidwei.uk, Jamal Hadi Salim , Victor Nogueira , Pedro Tammela , Samiullah Khawaja Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Use netmem_dma_*() helpers in gve_tx_dqo.c DQO-RDA paths to enable netmem TX support in that mode. Declare support for netmem TX in GVE DQO-RDA mode. Signed-off-by: Mina Almasry Acked-by: Harshitha Ramamurthy --- v11: - Fix whitespace (Harshitha) v10: - Move setting dev->netmem_tx to right after priv is initialized (Harshitha) v4: - New patch --- drivers/net/ethernet/google/gve/gve_main.c | 3 +++ drivers/net/ethernet/google/gve/gve_tx_dqo.c | 8 +++++--- 2 files changed, 8 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/google/gve/gve_main.c b/drivers/net/ether= net/google/gve/gve_main.c index 446e4b6fd3f17..e1ffbd561fac6 100644 --- a/drivers/net/ethernet/google/gve/gve_main.c +++ b/drivers/net/ethernet/google/gve/gve_main.c @@ -2659,6 +2659,9 @@ static int gve_probe(struct pci_dev *pdev, const stru= ct pci_device_id *ent) if (err) goto abort_with_wq; =20 + if (!gve_is_gqi(priv) && !gve_is_qpl(priv)) + dev->netmem_tx =3D true; + err =3D register_netdev(dev); if (err) goto abort_with_gve_init; diff --git a/drivers/net/ethernet/google/gve/gve_tx_dqo.c b/drivers/net/eth= ernet/google/gve/gve_tx_dqo.c index 2eba868d80370..a27f1574a7337 100644 --- a/drivers/net/ethernet/google/gve/gve_tx_dqo.c +++ b/drivers/net/ethernet/google/gve/gve_tx_dqo.c @@ -660,7 +660,8 @@ static int gve_tx_add_skb_no_copy_dqo(struct gve_tx_rin= g *tx, goto err; =20 dma_unmap_len_set(pkt, len[pkt->num_bufs], len); - dma_unmap_addr_set(pkt, dma[pkt->num_bufs], addr); + netmem_dma_unmap_addr_set(skb_frag_netmem(frag), pkt, + dma[pkt->num_bufs], addr); ++pkt->num_bufs; =20 gve_tx_fill_pkt_desc_dqo(tx, desc_idx, skb, len, addr, @@ -1038,8 +1039,9 @@ static void gve_unmap_packet(struct device *dev, dma_unmap_single(dev, dma_unmap_addr(pkt, dma[0]), dma_unmap_len(pkt, len[0]), DMA_TO_DEVICE); for (i =3D 1; i < pkt->num_bufs; i++) { - dma_unmap_page(dev, dma_unmap_addr(pkt, dma[i]), - dma_unmap_len(pkt, len[i]), DMA_TO_DEVICE); + netmem_dma_unmap_page_attrs(dev, dma_unmap_addr(pkt, dma[i]), + dma_unmap_len(pkt, len[i]), + DMA_TO_DEVICE, 0); } pkt->num_bufs =3D 0; } --=20 2.49.0.987.g0cc8ee98dc-goog