From patchwork Wed Jan 10 11:40:18 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jie Luo X-Patchwork-Id: 13516047 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 8288DC47422 for ; Wed, 10 Jan 2024 11:43:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=c2YBrqzBjSyyIJTZfchhN9wcnlbdGpS/z4gjVtqjCwM=; b=B6uhJlnisV5YaN J4aXe8LfhSTmawh4CL6ddwe6l80XY39r9aS6uLaRMmgL/FVWCwfToxC18FwFgQrJM/hmeenD6o8ht z85aUWCroAOXj7SgLA61trLSnV3G6L8LUYoM7hKFMl7/D+ca0UKpCmF2Xuvm1EkPGldJsLE+LTtqN FCQ1Du3Yu2bJIzhhMgqqbayBUhovz8X9B7hYm8SjWaicsRr6jN+NI6IbERoN7rOcqQkF+D0Ze/gZO TCxLxGelo4FWtN1OZGlqbxG68v2IwyLsPlj3xy7Upg8RlSxAdavjBrN5oDdyKyODpgef+8NsH5biD x3PrMyg39ajy4TuuMKzQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1rNWz6-00BTTd-13; Wed, 10 Jan 2024 11:43:00 +0000 Received: from mx0a-0031df01.pphosted.com ([205.220.168.131]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1rNWyx-00BTM7-2g for linux-arm-kernel@lists.infradead.org; Wed, 10 Jan 2024 11:42:56 +0000 Received: from pps.filterd (m0279867.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.24/8.17.1.24) with ESMTP id 40A8d862021796; Wed, 10 Jan 2024 11:42:11 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h= from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding:content-type; s= qcppdkim1; bh=jWjCIVTM2vJ8qNVYNESE3ciTPQ7JcSTFNXkTggauntY=; b=SV dp9zgqI+tvEDHsFiyySWuTJjRXCFCmY3ZMOfV8T1kU6s47pIiQkLaMdd0pFJ04ss zZQh4QHN2+3rBu0shwrRfAnh2XnoOrg6fykndJSxncKUyxi2tFP84guxmVALCNI6 005FkhyhWCdvPVcpuXKcL4DV/BGUAHN3KniqMZWFvC39a3Q5e/NTDLNRkxvf6/um +BUKFkSrpYRaU6Or6mb7N/M8Nr5uDUhsYwjxU/yqIOaHrdV7nE6ko6s3n8WyIC/j 83zSaQzu7u1mwTr5hks6eydCN1jr5X0+9B0xGqG+YPCMmF3TDepQGZbApV1KscRg zqirnf8lOUOB5xMMjiug== Received: from nalasppmta05.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3vhjh2s1tc-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 10 Jan 2024 11:42:11 +0000 (GMT) Received: from nalasex01c.na.qualcomm.com (nalasex01c.na.qualcomm.com [10.47.97.35]) by NALASPPMTA05.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 40ABg60r018763 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 10 Jan 2024 11:42:07 GMT Received: from akronite-sh-dev02.qualcomm.com (10.80.80.8) by nalasex01c.na.qualcomm.com (10.47.97.35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.40; Wed, 10 Jan 2024 03:41:56 -0800 From: Luo Jie To: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , , , , , , , , , , , Subject: [PATCH net-next 06/20] net: ethernet: qualcomm: Add PPE TDM config Date: Wed, 10 Jan 2024 19:40:18 +0800 Message-ID: <20240110114033.32575-7-quic_luoj@quicinc.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20240110114033.32575-1-quic_luoj@quicinc.com> References: <20240110114033.32575-1-quic_luoj@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nalasex01c.na.qualcomm.com (10.47.97.35) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-ORIG-GUID: hOygooSlE6Zdi0cPE3pVpl50NbBzHuPC X-Proofpoint-GUID: hOygooSlE6Zdi0cPE3pVpl50NbBzHuPC X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.997,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-12-09_02,2023-12-07_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 mlxlogscore=999 clxscore=1015 bulkscore=0 malwarescore=0 spamscore=0 phishscore=0 priorityscore=1501 adultscore=0 impostorscore=0 suspectscore=0 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2311290000 definitions=main-2401100096 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240110_034251_899165_1FCD27B8 X-CRM114-Status: GOOD ( 19.70 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org TDM(Time Division Multiplex) config controls the performance of the PPE ports, which assigns the clock tickets for the PPE port to receive and transmit packet. Signed-off-by: Luo Jie --- drivers/net/ethernet/qualcomm/ppe/ppe.c | 111 ++++++++++++++++++- drivers/net/ethernet/qualcomm/ppe/ppe_regs.h | 30 +++++ 2 files changed, 140 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/qualcomm/ppe/ppe.c b/drivers/net/ethernet/qualcomm/ppe/ppe.c index 122e325b407d..85d8b06a326b 100644 --- a/drivers/net/ethernet/qualcomm/ppe/ppe.c +++ b/drivers/net/ethernet/qualcomm/ppe/ppe.c @@ -625,6 +625,111 @@ static int of_parse_ppe_qm(struct ppe_device *ppe_dev, return ret; } +static int of_parse_ppe_tdm(struct ppe_device *ppe_dev, + struct device_node *ppe_node) +{ + struct device_node *tdm_node; + u32 *cfg, reg_val; + int ret, cnt; + + tdm_node = of_get_child_by_name(ppe_node, "tdm-config"); + if (!tdm_node) + return dev_err_probe(ppe_dev->dev, -ENODEV, + "tdm-config is not defined\n"); + + cnt = of_property_count_u32_elems(tdm_node, "qcom,tdm-bm-config"); + if (cnt < 0) + return dev_err_probe(ppe_dev->dev, -EINVAL, + "Fail to get qcom,tdm-bm-config\n"); + + cfg = kmalloc_array(cnt, sizeof(*cfg), GFP_KERNEL | __GFP_ZERO); + if (!cfg) + return -ENOMEM; + + ret = of_property_read_u32_array(tdm_node, "qcom,tdm-bm-config", cfg, cnt); + if (ret) { + dev_err(ppe_dev->dev, "Fail to get qcom,tdm-bm-config\n"); + goto parse_tdm_err; + } + + /* Parse TDM BM configuration, + * the dts property: + * qcom,tdm-bm-config = ; + * + * This config decides the number ticks available for physical port + * to utilize buffer for receiving and transmiting packet. + */ + reg_val = FIELD_PREP(PPE_BM_TDM_CTRL_TDM_DEPTH, cnt / 5) | + FIELD_PREP(PPE_BM_TDM_CTRL_TDM_OFFSET, 0) | + FIELD_PREP(PPE_BM_TDM_CTRL_TDM_EN, 1); + ret = ppe_write(ppe_dev, PPE_BM_TDM_CTRL, reg_val); + if (ret) + return ret; + + ret = 0; + while ((cnt - ret) / 5) { + reg_val = FIELD_PREP(PPE_BM_TDM_CFG_TBL_VALID, cfg[ret]) | + FIELD_PREP(PPE_BM_TDM_CFG_TBL_DIR, cfg[ret + 1]) | + FIELD_PREP(PPE_BM_TDM_CFG_TBL_PORT_NUM, cfg[ret + 2]) | + FIELD_PREP(PPE_BM_TDM_CFG_TBL_SECOND_PORT_VALID, cfg[ret + 3]) | + FIELD_PREP(PPE_BM_TDM_CFG_TBL_SECOND_PORT, cfg[ret + 4]); + + ppe_write(ppe_dev, + PPE_BM_TDM_CFG_TBL + (ret / 5) * PPE_BM_TDM_CFG_TBL_INC, + reg_val); + ret += 5; + } + + cnt = of_property_count_u32_elems(tdm_node, "qcom,tdm-port-scheduler-config"); + if (cnt < 0) { + dev_err(ppe_dev->dev, "Fail to get qcom,tdm-port-scheduler-config\n"); + goto parse_tdm_err; + } + + cfg = krealloc_array(cfg, cnt, sizeof(*cfg), GFP_KERNEL | __GFP_ZERO); + if (!cfg) { + ret = -ENOMEM; + goto parse_tdm_err; + } + + ret = of_property_read_u32_array(tdm_node, "qcom,tdm-port-scheduler-config", + cfg, cnt); + if (ret) { + dev_err(ppe_dev->dev, "Fail to get qcom,tdm-port-scheduler-config\n"); + goto parse_tdm_err; + } + + /* Parse TDM scheduler configuration, + * the dts property: + * qcom,tdm-port-scheduler-config = ; + * + * This config decides the ticks number available for packet enqueue + * and dequeue on the physical port. + */ + reg_val = FIELD_PREP(PPE_PSCH_TDM_DEPTH_CFG_TDM_DEPTH, cnt / 5); + ppe_write(ppe_dev, PPE_PSCH_TDM_DEPTH_CFG, reg_val); + + ret = 0; + while ((cnt - ret) / 5) { + reg_val = FIELD_PREP(PPE_PSCH_TDM_CFG_TBL_ENS_PORT_BITMAP, cfg[ret]) | + FIELD_PREP(PPE_PSCH_TDM_CFG_TBL_ENS_PORT, cfg[ret + 1]) | + FIELD_PREP(PPE_PSCH_TDM_CFG_TBL_DES_PORT, cfg[ret + 2]) | + FIELD_PREP(PPE_PSCH_TDM_CFG_TBL_DES_SECOND_PORT_EN, cfg[ret + 3]) | + FIELD_PREP(PPE_PSCH_TDM_CFG_TBL_DES_SECOND_PORT, cfg[ret + 4]); + + ppe_write(ppe_dev, + PPE_PSCH_TDM_CFG_TBL + (ret / 5) * PPE_PSCH_TDM_CFG_TBL_INC, + reg_val); + ret += 5; + } + + ret = 0; +parse_tdm_err: + kfree(cfg); + return ret; +}; + static int of_parse_ppe_config(struct ppe_device *ppe_dev, struct device_node *ppe_node) { @@ -634,7 +739,11 @@ static int of_parse_ppe_config(struct ppe_device *ppe_dev, if (ret) return ret; - return of_parse_ppe_qm(ppe_dev, ppe_node); + ret = of_parse_ppe_qm(ppe_dev, ppe_node); + if (ret) + return ret; + + return of_parse_ppe_tdm(ppe_dev, ppe_node); } static int qcom_ppe_probe(struct platform_device *pdev) diff --git a/drivers/net/ethernet/qualcomm/ppe/ppe_regs.h b/drivers/net/ethernet/qualcomm/ppe/ppe_regs.h index 3e75b75fa48c..589f92a4f607 100644 --- a/drivers/net/ethernet/qualcomm/ppe/ppe_regs.h +++ b/drivers/net/ethernet/qualcomm/ppe/ppe_regs.h @@ -7,14 +7,44 @@ #ifndef __PPE_REGS_H__ #define __PPE_REGS_H__ +#define PPE_BM_TDM_CTRL 0xb000 +#define PPE_BM_TDM_CTRL_NUM 1 +#define PPE_BM_TDM_CTRL_INC 4 +#define PPE_BM_TDM_CTRL_TDM_DEPTH GENMASK(7, 0) +#define PPE_BM_TDM_CTRL_TDM_OFFSET GENMASK(14, 8) +#define PPE_BM_TDM_CTRL_TDM_EN BIT(31) + +#define PPE_BM_TDM_CFG_TBL 0xc000 +#define PPE_BM_TDM_CFG_TBL_NUM 128 +#define PPE_BM_TDM_CFG_TBL_INC 0x10 +#define PPE_BM_TDM_CFG_TBL_PORT_NUM GENMASK(3, 0) +#define PPE_BM_TDM_CFG_TBL_DIR BIT(4) +#define PPE_BM_TDM_CFG_TBL_VALID BIT(5) +#define PPE_BM_TDM_CFG_TBL_SECOND_PORT_VALID BIT(6) +#define PPE_BM_TDM_CFG_TBL_SECOND_PORT GENMASK(11, 8) + #define PPE_EG_BRIDGE_CONFIG 0x20044 #define PPE_EG_BRIDGE_CONFIG_QUEUE_CNT_EN BIT(2) +#define PPE_PSCH_TDM_DEPTH_CFG 0x400000 +#define PPE_PSCH_TDM_DEPTH_CFG_NUM 1 +#define PPE_PSCH_TDM_DEPTH_CFG_INC 4 +#define PPE_PSCH_TDM_DEPTH_CFG_TDM_DEPTH GENMASK(7, 0) + #define PPE_DEQ_OPR_TBL 0x430000 #define PPE_DEQ_OPR_TBL_NUM 300 #define PPE_DEQ_OPR_TBL_INC 0x10 #define PPE_ENQ_OPR_TBL_DEQ_DISABLE BIT(0) +#define PPE_PSCH_TDM_CFG_TBL 0x47a000 +#define PPE_PSCH_TDM_CFG_TBL_NUM 128 +#define PPE_PSCH_TDM_CFG_TBL_INC 0x10 +#define PPE_PSCH_TDM_CFG_TBL_DES_PORT GENMASK(3, 0) +#define PPE_PSCH_TDM_CFG_TBL_ENS_PORT GENMASK(7, 4) +#define PPE_PSCH_TDM_CFG_TBL_ENS_PORT_BITMAP GENMASK(15, 8) +#define PPE_PSCH_TDM_CFG_TBL_DES_SECOND_PORT_EN BIT(16) +#define PPE_PSCH_TDM_CFG_TBL_DES_SECOND_PORT GENMASK(20, 17) + #define PPE_BM_PORT_FC_MODE 0x600100 #define PPE_BM_PORT_FC_MODE_NUM 15 #define PPE_BM_PORT_FC_MODE_INC 4