From patchwork Tue Aug 1 09:14:22 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: MD Danish Anwar X-Patchwork-Id: 13336061 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5CF10C41513 for ; Tue, 1 Aug 2023 09:17:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232378AbjHAJR3 (ORCPT ); Tue, 1 Aug 2023 05:17:29 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42898 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231339AbjHAJRH (ORCPT ); Tue, 1 Aug 2023 05:17:07 -0400 Received: from lelv0142.ext.ti.com (lelv0142.ext.ti.com [198.47.23.249]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B301C2101; Tue, 1 Aug 2023 02:16:07 -0700 (PDT) Received: from lelv0265.itg.ti.com ([10.180.67.224]) by lelv0142.ext.ti.com (8.15.2/8.15.2) with ESMTP id 3719F2WH108491; Tue, 1 Aug 2023 04:15:02 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1690881302; bh=M8CprSGvFx1uIAOJFhnlwO614aIBwYUbozy+ke1rvyg=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=wP9gFG9W1LBWQU7iXw6OXnQUuUrfCFQlbaDIA7gk2dxClz7a8CIuMGi/j8CalBpvr TzQwMENcplYFkG/sglFImprvwtPrnlHFUXfnbzW4NhApv8VreS6X8eaoYZ0eNAf5ti vBy+jvvsyw7tAo85A+3NujpZcJrgde+hJ3gDG3yQ= Received: from DLEE105.ent.ti.com (dlee105.ent.ti.com [157.170.170.35]) by lelv0265.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 3719F2ma028658 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 1 Aug 2023 04:15:02 -0500 Received: from DLEE115.ent.ti.com (157.170.170.26) by DLEE105.ent.ti.com (157.170.170.35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23; Tue, 1 Aug 2023 04:15:01 -0500 Received: from fllv0040.itg.ti.com (10.64.41.20) by DLEE115.ent.ti.com (157.170.170.26) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23 via Frontend Transport; Tue, 1 Aug 2023 04:15:01 -0500 Received: from lelv0854.itg.ti.com (lelv0854.itg.ti.com [10.181.64.140]) by fllv0040.itg.ti.com (8.15.2/8.15.2) with ESMTP id 3719F1K8037607; Tue, 1 Aug 2023 04:15:02 -0500 Received: from localhost (uda0501179.dhcp.ti.com [172.24.227.217]) by lelv0854.itg.ti.com (8.14.7/8.14.7) with ESMTP id 3719F1kr019664; Tue, 1 Aug 2023 04:15:01 -0500 From: MD Danish Anwar To: Randy Dunlap , Roger Quadros , Simon Horman , Vignesh Raghavendra , Andrew Lunn , Richard Cochran , Conor Dooley , Krzysztof Kozlowski , Rob Herring , Paolo Abeni , Jakub Kicinski , Eric Dumazet , "David S. Miller" , MD Danish Anwar CC: , , , , , , Subject: [PATCH v13 04/10] net: ti: icssg-prueth: Add icssg queues APIs and macros Date: Tue, 1 Aug 2023 14:44:22 +0530 Message-ID: <20230801091428.1359979-5-danishanwar@ti.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230801091428.1359979-1-danishanwar@ti.com> References: <20230801091428.1359979-1-danishanwar@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org Add icssg_queue.c file. This file introduces macros and APIs related to ICSSG queues. These will be used by ICSSG Ethernet driver. Reviewed-by: Andrew Lunn Signed-off-by: MD Danish Anwar --- drivers/net/ethernet/ti/icssg/icssg_prueth.h | 5 ++ drivers/net/ethernet/ti/icssg/icssg_queues.c | 50 ++++++++++++++++++++ 2 files changed, 55 insertions(+) create mode 100644 drivers/net/ethernet/ti/icssg/icssg_queues.c diff --git a/drivers/net/ethernet/ti/icssg/icssg_prueth.h b/drivers/net/ethernet/ti/icssg/icssg_prueth.h index e93488a79dbf..42fdf4005010 100644 --- a/drivers/net/ethernet/ti/icssg/icssg_prueth.h +++ b/drivers/net/ethernet/ti/icssg/icssg_prueth.h @@ -209,4 +209,9 @@ int emac_set_port_state(struct prueth_emac *emac, enum icssg_port_state_cmd state); void icssg_config_set_speed(struct prueth_emac *emac); +/* Buffer queue helpers */ +int icssg_queue_pop(struct prueth *prueth, u8 queue); +void icssg_queue_push(struct prueth *prueth, int queue, u16 addr); +u32 icssg_queue_level(struct prueth *prueth, int queue); + #endif /* __NET_TI_ICSSG_PRUETH_H */ diff --git a/drivers/net/ethernet/ti/icssg/icssg_queues.c b/drivers/net/ethernet/ti/icssg/icssg_queues.c new file mode 100644 index 000000000000..3c34f61ad40b --- /dev/null +++ b/drivers/net/ethernet/ti/icssg/icssg_queues.c @@ -0,0 +1,50 @@ +// SPDX-License-Identifier: GPL-2.0 +/* ICSSG Buffer queue helpers + * + * Copyright (C) 2021 Texas Instruments Incorporated - https://www.ti.com + */ + +#include +#include "icssg_prueth.h" + +#define ICSSG_QUEUES_MAX 64 +#define ICSSG_QUEUE_OFFSET 0xd00 +#define ICSSG_QUEUE_PEEK_OFFSET 0xe00 +#define ICSSG_QUEUE_CNT_OFFSET 0xe40 +#define ICSSG_QUEUE_RESET_OFFSET 0xf40 + +int icssg_queue_pop(struct prueth *prueth, u8 queue) +{ + u32 val, cnt; + + if (queue >= ICSSG_QUEUES_MAX) + return -EINVAL; + + regmap_read(prueth->miig_rt, ICSSG_QUEUE_CNT_OFFSET + 4 * queue, &cnt); + if (!cnt) + return -EINVAL; + + regmap_read(prueth->miig_rt, ICSSG_QUEUE_OFFSET + 4 * queue, &val); + + return val; +} + +void icssg_queue_push(struct prueth *prueth, int queue, u16 addr) +{ + if (queue >= ICSSG_QUEUES_MAX) + return; + + regmap_write(prueth->miig_rt, ICSSG_QUEUE_OFFSET + 4 * queue, addr); +} + +u32 icssg_queue_level(struct prueth *prueth, int queue) +{ + u32 reg; + + if (queue >= ICSSG_QUEUES_MAX) + return 0; + + regmap_read(prueth->miig_rt, ICSSG_QUEUE_CNT_OFFSET + 4 * queue, ®); + + return reg; +}