From patchwork Thu Jul 22 14:13:42 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 12394167 X-Patchwork-Delegate: geert@linux-m68k.org Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 74BF8C63799 for ; Thu, 22 Jul 2021 14:15:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5E8AC60698 for ; Thu, 22 Jul 2021 14:15:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232295AbhGVNeZ (ORCPT ); Thu, 22 Jul 2021 09:34:25 -0400 Received: from relmlor2.renesas.com ([210.160.252.172]:24216 "EHLO relmlie6.idc.renesas.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S232336AbhGVNeA (ORCPT ); Thu, 22 Jul 2021 09:34:00 -0400 X-IronPort-AV: E=Sophos;i="5.84,261,1620658800"; d="scan'208";a="88414766" Received: from unknown (HELO relmlir5.idc.renesas.com) ([10.200.68.151]) by relmlie6.idc.renesas.com with ESMTP; 22 Jul 2021 23:14:29 +0900 Received: from localhost.localdomain (unknown [10.226.92.164]) by relmlir5.idc.renesas.com (Postfix) with ESMTP id 81643401224A; Thu, 22 Jul 2021 23:14:26 +0900 (JST) From: Biju Das To: "David S. Miller" , Jakub Kicinski Cc: Biju Das , Sergei Shtylyov , Geert Uytterhoeven , Sergey Shtylyov , Adam Ford , Andrew Lunn , Yuusuke Ashizuka , Yoshihiro Shimoda , netdev@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Chris Paterson , Biju Das , Prabhakar Mahadev Lad Subject: [PATCH net-next 09/18] ravb: Factorise ravb_ring_free function Date: Thu, 22 Jul 2021 15:13:42 +0100 Message-Id: <20210722141351.13668-10-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210722141351.13668-1-biju.das.jz@bp.renesas.com> References: <20210722141351.13668-1-biju.das.jz@bp.renesas.com> Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org Extended descriptor support in RX is available for R-Car where as it is a normal descriptor for RZ/G2L. Factorise ravb_ring_free function so that it can support later SoC. Signed-off-by: Biju Das Reviewed-by: Lad Prabhakar --- drivers/net/ethernet/renesas/ravb.h | 5 +++ drivers/net/ethernet/renesas/ravb_main.c | 49 ++++++++++++++++-------- 2 files changed, 37 insertions(+), 17 deletions(-) diff --git a/drivers/net/ethernet/renesas/ravb.h b/drivers/net/ethernet/renesas/ravb.h index a474ed68db22..3a9cf6e8671a 100644 --- a/drivers/net/ethernet/renesas/ravb.h +++ b/drivers/net/ethernet/renesas/ravb.h @@ -988,7 +988,12 @@ enum ravb_chip_id { RCAR_GEN3, }; +struct ravb_ops { + void (*ring_free)(struct net_device *ndev, int q); +}; + struct ravb_drv_data { + const struct ravb_ops *ravb_ops; netdev_features_t net_features; netdev_features_t net_hw_features; const char (*gstrings_stats)[ETH_GSTRING_LEN]; diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c index 4ef2565534d2..a3b8b243fd54 100644 --- a/drivers/net/ethernet/renesas/ravb_main.c +++ b/drivers/net/ethernet/renesas/ravb_main.c @@ -247,30 +247,39 @@ static int ravb_tx_free(struct net_device *ndev, int q, bool free_txed_only) } /* Free skb's and DMA buffers for Ethernet AVB */ -static void ravb_ring_free(struct net_device *ndev, int q) +static void ravb_ring_free_rx(struct net_device *ndev, int q) { struct ravb_private *priv = netdev_priv(ndev); - int num_tx_desc = priv->num_tx_desc; int ring_size; int i; - if (priv->rx_ring[q]) { - for (i = 0; i < priv->num_rx_ring[q]; i++) { - struct ravb_ex_rx_desc *desc = &priv->rx_ring[q][i]; + for (i = 0; i < priv->num_rx_ring[q]; i++) { + struct ravb_ex_rx_desc *desc = &priv->rx_ring[q][i]; - if (!dma_mapping_error(ndev->dev.parent, - le32_to_cpu(desc->dptr))) - dma_unmap_single(ndev->dev.parent, - le32_to_cpu(desc->dptr), - RX_BUF_SZ, - DMA_FROM_DEVICE); - } - ring_size = sizeof(struct ravb_ex_rx_desc) * - (priv->num_rx_ring[q] + 1); - dma_free_coherent(ndev->dev.parent, ring_size, priv->rx_ring[q], - priv->rx_desc_dma[q]); - priv->rx_ring[q] = NULL; + if (!dma_mapping_error(ndev->dev.parent, + le32_to_cpu(desc->dptr))) + dma_unmap_single(ndev->dev.parent, + le32_to_cpu(desc->dptr), + RX_BUF_SZ, + DMA_FROM_DEVICE); } + ring_size = sizeof(struct ravb_ex_rx_desc) * + (priv->num_rx_ring[q] + 1); + dma_free_coherent(ndev->dev.parent, ring_size, priv->rx_ring[q], + priv->rx_desc_dma[q]); + priv->rx_ring[q] = NULL; +} + +static void ravb_ring_free(struct net_device *ndev, int q) +{ + struct ravb_private *priv = netdev_priv(ndev); + const struct ravb_drv_data *info = priv->info; + int num_tx_desc = priv->num_tx_desc; + int ring_size; + int i; + + if (priv->rx_ring[q]) + info->ravb_ops->ring_free(ndev, q); if (priv->tx_ring[q]) { ravb_tx_free(ndev, q, false); @@ -1987,7 +1996,12 @@ static int ravb_mdio_release(struct ravb_private *priv) return 0; } +static const struct ravb_ops ravb_gen3_ops = { + .ring_free = ravb_ring_free_rx, +}; + static const struct ravb_drv_data ravb_gen3_data = { + .ravb_ops = &ravb_gen3_ops, .net_features = NETIF_F_RXCSUM, .net_hw_features = NETIF_F_RXCSUM, .gstrings_stats = ravb_gstrings_stats, @@ -2001,6 +2015,7 @@ static const struct ravb_drv_data ravb_gen3_data = { }; static const struct ravb_drv_data ravb_gen2_data = { + .ravb_ops = &ravb_gen3_ops, .net_features = NETIF_F_RXCSUM, .net_hw_features = NETIF_F_RXCSUM, .gstrings_stats = ravb_gstrings_stats,