From patchwork Wed Jun 5 10:00:38 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Coquelin X-Patchwork-Id: 54406 X-Patchwork-Delegate: maxime.coquelin@redhat.com Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id EE8521BACB; Wed, 5 Jun 2019 12:01:12 +0200 (CEST) Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by dpdk.org (Postfix) with ESMTP id 0F6491BA64; Wed, 5 Jun 2019 12:01:09 +0200 (CEST) Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 8272DC18B2CB; Wed, 5 Jun 2019 10:01:06 +0000 (UTC) Received: from localhost.localdomain (ovpn-112-53.ams2.redhat.com [10.36.112.53]) by smtp.corp.redhat.com (Postfix) with ESMTP id A116E1001E63; Wed, 5 Jun 2019 10:01:04 +0000 (UTC) From: Maxime Coquelin To: dev@dpdk.org, ybrustin@cisco.com, tiwei.bie@intel.com, jfreimann@redhat.com, david.marchand@redhat.com Cc: stable@dpdk.org, Maxime Coquelin Date: Wed, 5 Jun 2019 12:00:38 +0200 Message-Id: <20190605100039.18029-4-maxime.coquelin@redhat.com> In-Reply-To: <20190605100039.18029-1-maxime.coquelin@redhat.com> References: <20190605100039.18029-1-maxime.coquelin@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.31]); Wed, 05 Jun 2019 10:01:08 +0000 (UTC) Subject: [dpdk-dev] [PATCH v3 3/4] net/virtio: fix segment data len in mergeable packed Rx path X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Head segment data_len field is wrongly summed with the length of all the segments of the chain, whereas it should be the length of of the first segment only. Fixes: a76290c8f1cf ("net/virtio: implement Rx path for packed queues") Cc: stable@dpdk.org Reported-by: Yaroslav Brustinov Reviewed-by: David Marchand Signed-off-by: Maxime Coquelin Reviewed-by: Jens Freimann --- drivers/net/virtio/virtio_rxtx.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/net/virtio/virtio_rxtx.c b/drivers/net/virtio/virtio_rxtx.c index acee4fcc07..358cc86627 100644 --- a/drivers/net/virtio/virtio_rxtx.c +++ b/drivers/net/virtio/virtio_rxtx.c @@ -1875,7 +1875,6 @@ virtio_recv_mergeable_pkts_packed(void *rx_queue, rxm->data_len = (uint16_t)(len[i]); rx_pkts[nb_rx]->pkt_len += (uint32_t)(len[i]); - rx_pkts[nb_rx]->data_len += (uint16_t)(len[i]); if (prev) prev->next = rxm; @@ -1912,7 +1911,6 @@ virtio_recv_mergeable_pkts_packed(void *rx_queue, prev->next = rxm; prev = rxm; rx_pkts[nb_rx]->pkt_len += len[extra_idx]; - rx_pkts[nb_rx]->data_len += len[extra_idx]; extra_idx += 1; } seg_res -= rcv_cnt;