From patchwork Mon Nov 16 08:20:53 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Huazhong Tan X-Patchwork-Id: 325158 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=-12.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, 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 CFF32C4742C for ; Mon, 16 Nov 2020 08:33:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 86E36207BC for ; Mon, 16 Nov 2020 08:33:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726395AbgKPIUu (ORCPT ); Mon, 16 Nov 2020 03:20:50 -0500 Received: from szxga04-in.huawei.com ([45.249.212.190]:7244 "EHLO szxga04-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725904AbgKPIUt (ORCPT ); Mon, 16 Nov 2020 03:20:49 -0500 Received: from DGGEMS405-HUB.china.huawei.com (unknown [172.30.72.58]) by szxga04-in.huawei.com (SkyGuard) with ESMTP id 4CZMT90NM4zkYwM; Mon, 16 Nov 2020 16:20:29 +0800 (CST) Received: from localhost.localdomain (10.69.192.56) by DGGEMS405-HUB.china.huawei.com (10.3.19.205) with Microsoft SMTP Server id 14.3.487.0; Mon, 16 Nov 2020 16:20:36 +0800 From: Huazhong Tan To: CC: , , , , , , Huazhong Tan Subject: [PATCH V4 net-next 3/4] net: hns3: add support for 1us unit GL configuration Date: Mon, 16 Nov 2020 16:20:53 +0800 Message-ID: <1605514854-11205-4-git-send-email-tanhuazhong@huawei.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1605514854-11205-1-git-send-email-tanhuazhong@huawei.com> References: <1605514854-11205-1-git-send-email-tanhuazhong@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.69.192.56] X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org For device whose version is above V3(include V3), the GL configuration can set as 1us unit, so adds support for configuring this field. Signed-off-by: Huazhong Tan --- drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 26 ++++++++++++++++++---- drivers/net/ethernet/hisilicon/hns3/hns3_enet.h | 3 +++ drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c | 6 +++++ 3 files changed, 31 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c index 6e08719..2813fe5 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c @@ -224,17 +224,27 @@ void hns3_set_vector_coalesce_rl(struct hns3_enet_tqp_vector *tqp_vector, void hns3_set_vector_coalesce_rx_gl(struct hns3_enet_tqp_vector *tqp_vector, u32 gl_value) { - u32 rx_gl_reg = hns3_gl_usec_to_reg(gl_value); + u32 new_val; - writel(rx_gl_reg, tqp_vector->mask_addr + HNS3_VECTOR_GL0_OFFSET); + if (tqp_vector->rx_group.coal.unit_1us) + new_val = gl_value | HNS3_INT_GL_1US; + else + new_val = hns3_gl_usec_to_reg(gl_value); + + writel(new_val, tqp_vector->mask_addr + HNS3_VECTOR_GL0_OFFSET); } void hns3_set_vector_coalesce_tx_gl(struct hns3_enet_tqp_vector *tqp_vector, u32 gl_value) { - u32 tx_gl_reg = hns3_gl_usec_to_reg(gl_value); + u32 new_val; + + if (tqp_vector->tx_group.coal.unit_1us) + new_val = gl_value | HNS3_INT_GL_1US; + else + new_val = hns3_gl_usec_to_reg(gl_value); - writel(tx_gl_reg, tqp_vector->mask_addr + HNS3_VECTOR_GL1_OFFSET); + writel(new_val, tqp_vector->mask_addr + HNS3_VECTOR_GL1_OFFSET); } void hns3_set_vector_coalesce_tx_ql(struct hns3_enet_tqp_vector *tqp_vector, @@ -272,6 +282,14 @@ static void hns3_vector_coalesce_init(struct hns3_enet_tqp_vector *tqp_vector, rx_coal->flow_level = HNS3_FLOW_LOW; tx_coal->flow_level = HNS3_FLOW_LOW; + /* device version above V3(include V3), GL can configure 1us + * unit, so uses 1us unit. + */ + if (ae_dev->dev_version >= HNAE3_DEVICE_VERSION_V3) { + tx_coal->unit_1us = 1; + rx_coal->unit_1us = 1; + } + if (ae_dev->dev_specs.int_ql_max) { tx_coal->ql_enable = 1; rx_coal->ql_enable = 1; diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h index be099dd..4651ad1 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h @@ -425,6 +425,8 @@ enum hns3_flow_level_range { #define HNS3_INT_GL_18K 0x0036 #define HNS3_INT_GL_8K 0x007C +#define HNS3_INT_GL_1US BIT(31) + #define HNS3_INT_RL_MAX 0x00EC #define HNS3_INT_RL_ENABLE_MASK 0x40 @@ -436,6 +438,7 @@ struct hns3_enet_coalesce { u16 int_ql_max; u8 gl_adapt_enable:1; u8 ql_enable:1; + u8 unit_1us:1; enum hns3_flow_level_range flow_level; }; diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c b/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c index 49d3061..09aa608 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c @@ -1148,6 +1148,12 @@ static int hns3_check_gl_coalesce_para(struct net_device *netdev, return -EINVAL; } + /* device version above V3(include V3), GL uses 1us unit, + * so the round down is not needed. + */ + if (ae_dev->dev_version >= HNAE3_DEVICE_VERSION_V3) + return 0; + rx_gl = hns3_gl_round_down(cmd->rx_coalesce_usecs); if (rx_gl != cmd->rx_coalesce_usecs) { netdev_info(netdev,