From patchwork Thu Sep 23 14:08:01 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 12513013 X-Patchwork-Delegate: kuba@kernel.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=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 DABDDC433FE for ; Thu, 23 Sep 2021 14:08:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C6AFD610C8 for ; Thu, 23 Sep 2021 14:08:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241615AbhIWOKP (ORCPT ); Thu, 23 Sep 2021 10:10:15 -0400 Received: from relmlor2.renesas.com ([210.160.252.172]:47424 "EHLO relmlie6.idc.renesas.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S241631AbhIWOKM (ORCPT ); Thu, 23 Sep 2021 10:10:12 -0400 X-IronPort-AV: E=Sophos;i="5.85,316,1624287600"; d="scan'208";a="94936082" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie6.idc.renesas.com with ESMTP; 23 Sep 2021 23:08:39 +0900 Received: from localhost.localdomain (unknown [10.226.92.2]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 06486437F0B6; Thu, 23 Sep 2021 23:08:36 +0900 (JST) From: Biju Das To: "David S. Miller" , Jakub Kicinski Cc: Biju Das , Sergey Shtylyov , Lad Prabhakar , Andrew Lunn , Sergei Shtylyov , Geert Uytterhoeven , Adam Ford , Yoshihiro Shimoda , netdev@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Chris Paterson , Biju Das Subject: [RFC/PATCH 06/18] ravb: Add multi_tsrq to struct ravb_hw_info Date: Thu, 23 Sep 2021 15:08:01 +0100 Message-Id: <20210923140813.13541-7-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210923140813.13541-1-biju.das.jz@bp.renesas.com> References: <20210923140813.13541-1-biju.das.jz@bp.renesas.com> Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org X-Patchwork-State: RFC R-Car AVB-DMAC has 4 Transmit start Request queues, whereas RZ/G2L has only 1 Transmit start Request queue(Best Effort) Add a multi_tsrq hw feature bit to struct ravb_hw_info to enable this only for R-Car. This will allow us to add single TSRQ support for RZ/G2L. Signed-off-by: Biju Das --- drivers/net/ethernet/renesas/ravb.h | 1 + drivers/net/ethernet/renesas/ravb_main.c | 12 ++++++++++-- 2 files changed, 11 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/renesas/ravb.h b/drivers/net/ethernet/renesas/ravb.h index bb92469d770e..c043ee555be4 100644 --- a/drivers/net/ethernet/renesas/ravb.h +++ b/drivers/net/ethernet/renesas/ravb.h @@ -1006,6 +1006,7 @@ struct ravb_hw_info { unsigned multi_irqs:1; /* AVB-DMAC and E-MAC has multiple irqs */ unsigned no_gptp:1; /* AVB-DMAC does not support gPTP feature */ unsigned ccc_gac:1; /* AVB-DMAC has gPTP support active in config mode */ + unsigned multi_tsrq:1; /* AVB-DMAC has MULTI TSRQ */ }; struct ravb_private { diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c index 8663d83507a0..d37d73f6d984 100644 --- a/drivers/net/ethernet/renesas/ravb_main.c +++ b/drivers/net/ethernet/renesas/ravb_main.c @@ -776,11 +776,17 @@ static void ravb_rcv_snd_enable(struct net_device *ndev) /* function for waiting dma process finished */ static int ravb_stop_dma(struct net_device *ndev) { + struct ravb_private *priv = netdev_priv(ndev); + const struct ravb_hw_info *info = priv->info; int error; /* Wait for stopping the hardware TX process */ - error = ravb_wait(ndev, TCCR, - TCCR_TSRQ0 | TCCR_TSRQ1 | TCCR_TSRQ2 | TCCR_TSRQ3, 0); + if (info->multi_tsrq) + error = ravb_wait(ndev, TCCR, + TCCR_TSRQ0 | TCCR_TSRQ1 | TCCR_TSRQ2 | TCCR_TSRQ3, 0); + else + error = ravb_wait(ndev, TCCR, TCCR_TSRQ0, 0); + if (error) return error; @@ -2088,6 +2094,7 @@ static const struct ravb_hw_info ravb_gen3_hw_info = { .tx_counters = 1, .multi_irqs = 1, .ccc_gac = 1, + .multi_tsrq = 1, }; static const struct ravb_hw_info ravb_gen2_hw_info = { @@ -2106,6 +2113,7 @@ static const struct ravb_hw_info ravb_gen2_hw_info = { .stats_len = ARRAY_SIZE(ravb_gstrings_stats), .max_rx_len = RX_BUF_SZ + RAVB_ALIGN - 1, .aligned_tx = 1, + .multi_tsrq = 1, }; static const struct ravb_hw_info rgeth_hw_info = {