From patchwork Thu Jul 22 14:13:43 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 485087 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=unavailable 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 6B234C63793 for ; Thu, 22 Jul 2021 14:15:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 52DF361244 for ; Thu, 22 Jul 2021 14:15:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232442AbhGVNeb (ORCPT ); Thu, 22 Jul 2021 09:34:31 -0400 Received: from relmlor2.renesas.com ([210.160.252.172]:5527 "EHLO relmlie6.idc.renesas.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S232335AbhGVNeA (ORCPT ); Thu, 22 Jul 2021 09:34:00 -0400 X-IronPort-AV: E=Sophos;i="5.84,261,1620658800"; d="scan'208";a="88414770" Received: from unknown (HELO relmlir5.idc.renesas.com) ([10.200.68.151]) by relmlie6.idc.renesas.com with ESMTP; 22 Jul 2021 23:14:33 +0900 Received: from localhost.localdomain (unknown [10.226.92.164]) by relmlir5.idc.renesas.com (Postfix) with ESMTP id 28A81401224A; Thu, 22 Jul 2021 23:14:29 +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 10/18] ravb: Factorise ravb_ring_format function Date: Thu, 22 Jul 2021 15:13:43 +0100 Message-Id: <20210722141351.13668-11-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: netdev@vger.kernel.org The ravb_ring_format function uses extended descriptor in rx for R-Car where as it use normal descriptor for RZ/G2L. Factorise rx ring buffer buildup to extend the support for later SoC. Signed-off-by: Biju Das Reviewed-by: Lad Prabhakar --- drivers/net/ethernet/renesas/ravb.h | 1 + drivers/net/ethernet/renesas/ravb_main.c | 34 +++++++++++++++--------- 2 files changed, 23 insertions(+), 12 deletions(-) diff --git a/drivers/net/ethernet/renesas/ravb.h b/drivers/net/ethernet/renesas/ravb.h index 3a9cf6e8671a..a3258c5d0c3d 100644 --- a/drivers/net/ethernet/renesas/ravb.h +++ b/drivers/net/ethernet/renesas/ravb.h @@ -990,6 +990,7 @@ enum ravb_chip_id { struct ravb_ops { void (*ring_free)(struct net_device *ndev, int q); + void (*ring_format)(struct net_device *ndev, int q); }; struct ravb_drv_data { diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c index a3b8b243fd54..c23f0d420c70 100644 --- a/drivers/net/ethernet/renesas/ravb_main.c +++ b/drivers/net/ethernet/renesas/ravb_main.c @@ -311,26 +311,15 @@ static void ravb_ring_free(struct net_device *ndev, int q) } /* Format skb and descriptor buffer for Ethernet AVB */ -static void ravb_ring_format(struct net_device *ndev, int q) +static void ravb_ring_format_rx(struct net_device *ndev, int q) { struct ravb_private *priv = netdev_priv(ndev); - int num_tx_desc = priv->num_tx_desc; struct ravb_ex_rx_desc *rx_desc; - struct ravb_tx_desc *tx_desc; - struct ravb_desc *desc; int rx_ring_size = sizeof(*rx_desc) * priv->num_rx_ring[q]; - int tx_ring_size = sizeof(*tx_desc) * priv->num_tx_ring[q] * - num_tx_desc; dma_addr_t dma_addr; int i; - priv->cur_rx[q] = 0; - priv->cur_tx[q] = 0; - priv->dirty_rx[q] = 0; - priv->dirty_tx[q] = 0; - memset(priv->rx_ring[q], 0, rx_ring_size); - /* Build RX ring buffer */ for (i = 0; i < priv->num_rx_ring[q]; i++) { /* RX descriptor */ rx_desc = &priv->rx_ring[q][i]; @@ -349,6 +338,26 @@ static void ravb_ring_format(struct net_device *ndev, int q) rx_desc = &priv->rx_ring[q][i]; rx_desc->dptr = cpu_to_le32((u32)priv->rx_desc_dma[q]); rx_desc->die_dt = DT_LINKFIX; /* type */ +} + +static void ravb_ring_format(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; + struct ravb_tx_desc *tx_desc; + struct ravb_desc *desc; + int tx_ring_size = sizeof(*tx_desc) * priv->num_tx_ring[q] * + num_tx_desc; + int i; + + priv->cur_rx[q] = 0; + priv->cur_tx[q] = 0; + priv->dirty_rx[q] = 0; + priv->dirty_tx[q] = 0; + + /* Build RX ring buffer */ + info->ravb_ops->ring_format(ndev, q); memset(priv->tx_ring[q], 0, tx_ring_size); /* Build TX ring buffer */ @@ -1998,6 +2007,7 @@ static int ravb_mdio_release(struct ravb_private *priv) static const struct ravb_ops ravb_gen3_ops = { .ring_free = ravb_ring_free_rx, + .ring_format = ravb_ring_format_rx, }; static const struct ravb_drv_data ravb_gen3_data = {