From patchwork Fri Jan 8 17:59:41 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vladimir Oltean X-Patchwork-Id: 12007173 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=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 3DB89C433E0 for ; Fri, 8 Jan 2021 18:03:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E861D23A69 for ; Fri, 8 Jan 2021 18:03:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728539AbhAHSDO (ORCPT ); Fri, 8 Jan 2021 13:03:14 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59836 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728505AbhAHSDN (ORCPT ); Fri, 8 Jan 2021 13:03:13 -0500 Received: from mail-ej1-x635.google.com (mail-ej1-x635.google.com [IPv6:2a00:1450:4864:20::635]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 433A2C061381 for ; Fri, 8 Jan 2021 10:02:33 -0800 (PST) Received: by mail-ej1-x635.google.com with SMTP id qw4so15569323ejb.12 for ; Fri, 08 Jan 2021 10:02:33 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=prMCW7XBMh85eNT+8PNz9YAAfQMyUZMqvcEriEklMKA=; b=vJftVS0gIeLsK6shnon1RzUT/orl80H9XUvJzdQkhSMTnAy9O6xyJkMNHwdUZoGpFw A99BRx2KCDCfRgbYqLs9tguZxspjUwXtW0wuaUODsip5sIcvvI1yMSj/9E9NxgvmmocJ lyAKC3ooyL5NSRkxU3NygKyM0fzKyqQRnK4qCdclGUSqYGoK4AMs2CKFfzh/XaRYj5Ep XOQK56jrErNnLeVYzAnRA+RTm6C68rSuTNwjo7lrT1iUfj7jWOeArDfUxMaS65Zgkd2e PHZLhBfJR5+TOQmazAZX94MCw7hqzOQHTxQuMlijlgZuWXSakBgDA1GHyIk6LCD1U2So P2Dg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=prMCW7XBMh85eNT+8PNz9YAAfQMyUZMqvcEriEklMKA=; b=RmBg15hIWtLeQepzlMg9cqk7SrP5nN5yOJmESpTxhrs9Z+36eaXUDt5InY5qDcyRkS ao4sLM4t6400BAWuqpj4f1AUAaSdYbatX9PGZIFJfgCMaE5nB0BN+Z3Ynsql0DNJGi++ MpGzIcHPlruFLzBr+wqKGEKK3R8Qm/azIV/QLGHlvjhMRyqKjPt7w6CpGEuP9lGgN8h5 H61rsI8dzz2rzni8O7EmQVIyYqdZbYBIQldv2i2zIp2IrR9yPgTpOzZiJTsBKrCTB0NW Cm1W1WRF8yYJvz1jLOmQX0bPDnFCVGaSRK7tesCEOrG1dlF09zU22Fn1juVk7GHLMt8A ZvUw== X-Gm-Message-State: AOAM5320c8AC59MTmjeBlZfdmKOLIkYefc7YuWSkkJWpDynScnRxHFy0 T2HEoRdYw0DYf0vjl3DptEQ/p6JqBT4= X-Google-Smtp-Source: ABdhPJxwBnsddyV7uzdA3Kgwe0Sm0ZMPLmruxxcmo3gEedxhXUstfWfjv+HOoVUtAhWuBoZhoOY16Q== X-Received: by 2002:a17:907:206a:: with SMTP id qp10mr3461660ejb.432.1610128951377; Fri, 08 Jan 2021 10:02:31 -0800 (PST) Received: from localhost.localdomain (5-12-227-87.residential.rdsnet.ro. [5.12.227.87]) by smtp.gmail.com with ESMTPSA id b19sm4059713edx.47.2021.01.08.10.02.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 08 Jan 2021 10:02:30 -0800 (PST) From: Vladimir Oltean To: netdev@vger.kernel.org Cc: alexandre.belloni@bootlin.com, andrew@lunn.ch, f.fainelli@gmail.com, vivien.didelot@gmail.com, alexandru.marginean@nxp.com, claudiu.manoil@nxp.com, xiaoliang.yang_1@nxp.com, hongbo.wang@nxp.com, kuba@kernel.org, jiri@resnulli.us, idosch@idosch.org, UNGLinuxDriver@microchip.com Subject: [PATCH v3 net-next 01/10] net: mscc: ocelot: auto-detect packet buffer size and number of frame references Date: Fri, 8 Jan 2021 19:59:41 +0200 Message-Id: <20210108175950.484854-2-olteanv@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210108175950.484854-1-olteanv@gmail.com> References: <20210108175950.484854-1-olteanv@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org From: Vladimir Oltean Instead of reading these values from the reference manual and writing them down into the driver, it appears that the hardware gives us the option of detecting them dynamically. The number of frame references corresponds to what the reference manual notes, however it seems that the frame buffers are reported as slightly less than the books would indicate. On VSC9959 (Felix), the books say it should have 128KB of packet buffer, but the registers indicate only 129840 bytes (126.79 KB). Also, the unit of measurement for FREECNT from the documentation of all these devices is incorrect (taken from an older generation). This was confirmed by Younes Leroul from Microchip support. Not having anything better to do with these values at the moment* (this will change soon), let's just print them. *The frame buffer size is, in fact, used to calculate the tail dropping watermarks. Signed-off-by: Vladimir Oltean Reviewed-by: Florian Fainelli --- Changes in v3: None. Changes in v2: - Fixed FREECNT multiplier after consulting with Microchip support. drivers/net/dsa/ocelot/felix.c | 1 - drivers/net/dsa/ocelot/felix.h | 1 - drivers/net/dsa/ocelot/felix_vsc9959.c | 1 - drivers/net/dsa/ocelot/seville_vsc9953.c | 1 - drivers/net/ethernet/mscc/ocelot.c | 22 +++++++++++++++++++++- drivers/net/ethernet/mscc/ocelot_vsc7514.c | 1 - include/soc/mscc/ocelot.h | 3 ++- include/soc/mscc/ocelot_qsys.h | 3 +++ 8 files changed, 26 insertions(+), 7 deletions(-) diff --git a/drivers/net/dsa/ocelot/felix.c b/drivers/net/dsa/ocelot/felix.c index 90c3c76f21b2..a2e06a0d1509 100644 --- a/drivers/net/dsa/ocelot/felix.c +++ b/drivers/net/dsa/ocelot/felix.c @@ -451,7 +451,6 @@ static int felix_init_structs(struct felix *felix, int num_phys_ports) ocelot->map = felix->info->map; ocelot->stats_layout = felix->info->stats_layout; ocelot->num_stats = felix->info->num_stats; - ocelot->shared_queue_sz = felix->info->shared_queue_sz; ocelot->num_mact_rows = felix->info->num_mact_rows; ocelot->vcap = felix->info->vcap; ocelot->ops = felix->info->ops; diff --git a/drivers/net/dsa/ocelot/felix.h b/drivers/net/dsa/ocelot/felix.h index 4c717324ac2f..5434fe278d2c 100644 --- a/drivers/net/dsa/ocelot/felix.h +++ b/drivers/net/dsa/ocelot/felix.h @@ -15,7 +15,6 @@ struct felix_info { const struct reg_field *regfields; const u32 *const *map; const struct ocelot_ops *ops; - int shared_queue_sz; int num_mact_rows; const struct ocelot_stat_layout *stats_layout; unsigned int num_stats; diff --git a/drivers/net/dsa/ocelot/felix_vsc9959.c b/drivers/net/dsa/ocelot/felix_vsc9959.c index 2e5bbdca5ea4..9fffbad6ef9b 100644 --- a/drivers/net/dsa/ocelot/felix_vsc9959.c +++ b/drivers/net/dsa/ocelot/felix_vsc9959.c @@ -1356,7 +1356,6 @@ static const struct felix_info felix_info_vsc9959 = { .stats_layout = vsc9959_stats_layout, .num_stats = ARRAY_SIZE(vsc9959_stats_layout), .vcap = vsc9959_vcap_props, - .shared_queue_sz = 128 * 1024, .num_mact_rows = 2048, .num_ports = 6, .num_tx_queues = FELIX_NUM_TC, diff --git a/drivers/net/dsa/ocelot/seville_vsc9953.c b/drivers/net/dsa/ocelot/seville_vsc9953.c index ebbaf6817ec8..b72813da6d9f 100644 --- a/drivers/net/dsa/ocelot/seville_vsc9953.c +++ b/drivers/net/dsa/ocelot/seville_vsc9953.c @@ -1181,7 +1181,6 @@ static const struct felix_info seville_info_vsc9953 = { .stats_layout = vsc9953_stats_layout, .num_stats = ARRAY_SIZE(vsc9953_stats_layout), .vcap = vsc9953_vcap_props, - .shared_queue_sz = 256 * 1024, .num_mact_rows = 2048, .num_ports = 10, .mdio_bus_alloc = vsc9953_mdio_bus_alloc, diff --git a/drivers/net/ethernet/mscc/ocelot.c b/drivers/net/ethernet/mscc/ocelot.c index 0b9992bd6626..876c03e51bdc 100644 --- a/drivers/net/ethernet/mscc/ocelot.c +++ b/drivers/net/ethernet/mscc/ocelot.c @@ -1366,7 +1366,7 @@ void ocelot_port_set_maxlen(struct ocelot *ocelot, int port, size_t sdu) pause_stop); /* Tail dropping watermarks */ - atop_tot = (ocelot->shared_queue_sz - 9 * maxlen) / + atop_tot = (ocelot->packet_buffer_size - 9 * maxlen) / OCELOT_BUFFER_CELL_SZ; atop = (9 * maxlen) / OCELOT_BUFFER_CELL_SZ; ocelot_write_rix(ocelot, ocelot->ops->wm_enc(atop), SYS_ATOP, port); @@ -1479,6 +1479,25 @@ static void ocelot_cpu_port_init(struct ocelot *ocelot) ANA_PORT_VLAN_CFG, cpu); } +static void ocelot_detect_features(struct ocelot *ocelot) +{ + int mmgt, eq_ctrl; + + /* For Ocelot, Felix, Seville, Serval etc, SYS:MMGT:MMGT:FREECNT holds + * the number of 240-byte free memory words (aka 4-cell chunks) and not + * 192 bytes as the documentation incorrectly says. + */ + mmgt = ocelot_read(ocelot, SYS_MMGT); + ocelot->packet_buffer_size = 240 * SYS_MMGT_FREECNT(mmgt); + + eq_ctrl = ocelot_read(ocelot, QSYS_EQ_CTRL); + ocelot->num_frame_refs = QSYS_MMGT_EQ_CTRL_FP_FREE_CNT(eq_ctrl); + + dev_info(ocelot->dev, + "Detected %d bytes of packet buffer and %d frame references\n", + ocelot->packet_buffer_size, ocelot->num_frame_refs); +} + int ocelot_init(struct ocelot *ocelot) { char queue_name[32]; @@ -1521,6 +1540,7 @@ int ocelot_init(struct ocelot *ocelot) INIT_LIST_HEAD(&ocelot->multicast); INIT_LIST_HEAD(&ocelot->pgids); + ocelot_detect_features(ocelot); ocelot_mact_init(ocelot); ocelot_vlan_init(ocelot); ocelot_vcap_init(ocelot); diff --git a/drivers/net/ethernet/mscc/ocelot_vsc7514.c b/drivers/net/ethernet/mscc/ocelot_vsc7514.c index 9cf2bc5f4289..7135ad18affe 100644 --- a/drivers/net/ethernet/mscc/ocelot_vsc7514.c +++ b/drivers/net/ethernet/mscc/ocelot_vsc7514.c @@ -517,7 +517,6 @@ static int ocelot_chip_init(struct ocelot *ocelot, const struct ocelot_ops *ops) ocelot->map = ocelot_regmap; ocelot->stats_layout = ocelot_stats_layout; ocelot->num_stats = ARRAY_SIZE(ocelot_stats_layout); - ocelot->shared_queue_sz = 224 * 1024; ocelot->num_mact_rows = 1024; ocelot->ops = ops; diff --git a/include/soc/mscc/ocelot.h b/include/soc/mscc/ocelot.h index 2f4cd3288bcc..c6c131142195 100644 --- a/include/soc/mscc/ocelot.h +++ b/include/soc/mscc/ocelot.h @@ -607,7 +607,8 @@ struct ocelot { const struct ocelot_stat_layout *stats_layout; unsigned int num_stats; - int shared_queue_sz; + int packet_buffer_size; + int num_frame_refs; int num_mact_rows; struct net_device *hw_bridge_dev; diff --git a/include/soc/mscc/ocelot_qsys.h b/include/soc/mscc/ocelot_qsys.h index a814bc2017d8..b7b263a19068 100644 --- a/include/soc/mscc/ocelot_qsys.h +++ b/include/soc/mscc/ocelot_qsys.h @@ -77,6 +77,9 @@ #define QSYS_RES_STAT_MAXUSE(x) ((x) & GENMASK(11, 0)) #define QSYS_RES_STAT_MAXUSE_M GENMASK(11, 0) +#define QSYS_MMGT_EQ_CTRL_FP_FREE_CNT(x) ((x) & GENMASK(15, 0)) +#define QSYS_MMGT_EQ_CTRL_FP_FREE_CNT_M GENMASK(15, 0) + #define QSYS_EVENTS_CORE_EV_FDC(x) (((x) << 2) & GENMASK(4, 2)) #define QSYS_EVENTS_CORE_EV_FDC_M GENMASK(4, 2) #define QSYS_EVENTS_CORE_EV_FDC_X(x) (((x) & GENMASK(4, 2)) >> 2) From patchwork Fri Jan 8 17:59:42 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vladimir Oltean X-Patchwork-Id: 12007175 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=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 797AFC433DB for ; Fri, 8 Jan 2021 18:03:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 31CF323A69 for ; Fri, 8 Jan 2021 18:03:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728560AbhAHSDP (ORCPT ); Fri, 8 Jan 2021 13:03:15 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59842 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728505AbhAHSDP (ORCPT ); Fri, 8 Jan 2021 13:03:15 -0500 Received: from mail-ej1-x634.google.com (mail-ej1-x634.google.com [IPv6:2a00:1450:4864:20::634]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 82304C0612EA for ; Fri, 8 Jan 2021 10:02:34 -0800 (PST) Received: by mail-ej1-x634.google.com with SMTP id ce23so15651856ejb.8 for ; Fri, 08 Jan 2021 10:02:34 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=/9v40L/SayJ5DOAI7ufML8NNW6gKaEfuybui5IhzoLE=; b=fxtOHjoMYPya/JfK+Be4iTNjUKBBfxGoCpDgxLSTLh1kA+yD8od3JI5DYo8NQzxg+j gFYp3GoGiBd+L6lFkrEnUnUraIOrTymAFxGoTntilft4IgfRFkb4Pb+nXfAbVjNJuiWJ 8UeWY4hgk2KYkSvKdqmMQ++xxrmEoqcMSGAHtfj46L9mK6lJ+uIZqqbKbchOUii2rq/f 7qZvsm7fE8GmTcueL+gHwSe30bM1qc8n+E1tNVS/Qkfb0M3q/ooRSgGqXbhtbB0OPc4Q RhkcQlI12fg36/hYgS2VMtnarpNBIISp+MOw8Z/LNyOQ6eBzvS+gEb/kNONtbxRb+Tv0 RaRQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=/9v40L/SayJ5DOAI7ufML8NNW6gKaEfuybui5IhzoLE=; b=Sd92Sbia3evF9lIXj2ac1HrA3Y0HQ0pJW1KCJGPPGs6NfRxMo3oJWxfSuzLqDr+l+O KJaUXhAXSJnZ0DTz8av3OhxV9MJ8YBkoHsQBw5xTjnZ7ir2g04AXih9pFXW2xq6queTf gOCeqIjAlml8y3f3oxhz3VASRdK1aYNH4kdNvSdkYWvT1W5EISNHQ9lmip0eKD8d1Ggr ZG/WHDPeAkHPz0QIpuGKqsX4dTEqJ4VUaME+429KMgIAG4St+NPHVYy/W0pb9nLuw8FA 3WQvHFW+RkzaqnKUV/qohp1+L/GXOy69AgKP4EtTtR5oEioMiU8xQKjWBu8AEYPGQ4t7 aoyw== X-Gm-Message-State: AOAM530u0eqme46e2TSGZPWubS+VUHFMHSKhK+7uoGXRTa/EHot6NePV Qse71aNvImHtedpw3i+xWeEAoyVgwoc= X-Google-Smtp-Source: ABdhPJw6y51zEeXgp1+ZL9Bd6phQWqSVOZ/ApzMAH7QUeW9A8Eeub6nLBLQwTWjQsAgwTruCkGuXzQ== X-Received: by 2002:a17:906:94c5:: with SMTP id d5mr3275168ejy.427.1610128952939; Fri, 08 Jan 2021 10:02:32 -0800 (PST) Received: from localhost.localdomain (5-12-227-87.residential.rdsnet.ro. [5.12.227.87]) by smtp.gmail.com with ESMTPSA id b19sm4059713edx.47.2021.01.08.10.02.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 08 Jan 2021 10:02:32 -0800 (PST) From: Vladimir Oltean To: netdev@vger.kernel.org Cc: alexandre.belloni@bootlin.com, andrew@lunn.ch, f.fainelli@gmail.com, vivien.didelot@gmail.com, alexandru.marginean@nxp.com, claudiu.manoil@nxp.com, xiaoliang.yang_1@nxp.com, hongbo.wang@nxp.com, kuba@kernel.org, jiri@resnulli.us, idosch@idosch.org, UNGLinuxDriver@microchip.com Subject: [PATCH v3 net-next 02/10] net: mscc: ocelot: add ops for decoding watermark threshold and occupancy Date: Fri, 8 Jan 2021 19:59:42 +0200 Message-Id: <20210108175950.484854-3-olteanv@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210108175950.484854-1-olteanv@gmail.com> References: <20210108175950.484854-1-olteanv@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org From: Vladimir Oltean We'll need to read back the watermark thresholds and occupancy from hardware (for devlink-sb integration), not only to write them as we did so far in ocelot_port_set_maxlen. So introduce 2 new functions in struct ocelot_ops, similar to wm_enc, and implement them for the 3 supported mscc_ocelot switches. Remove the INUSE and MAXUSE unpacking helpers for the QSYS_RES_STAT register, because that doesn't scale with the number of switches that mscc_ocelot supports now. They have different bit widths for the watermarks, and we need function pointers to abstract that difference away. Signed-off-by: Vladimir Oltean Reviewed-by: Florian Fainelli --- Changes in v3: None. Changes in v2: None. drivers/net/dsa/ocelot/felix_vsc9959.c | 18 ++++++++++++++++++ drivers/net/dsa/ocelot/seville_vsc9953.c | 18 ++++++++++++++++++ drivers/net/ethernet/mscc/ocelot_vsc7514.c | 16 ++++++++++++++++ include/soc/mscc/ocelot.h | 2 ++ include/soc/mscc/ocelot_qsys.h | 6 ------ 5 files changed, 54 insertions(+), 6 deletions(-) diff --git a/drivers/net/dsa/ocelot/felix_vsc9959.c b/drivers/net/dsa/ocelot/felix_vsc9959.c index 9fffbad6ef9b..540b86edbbb0 100644 --- a/drivers/net/dsa/ocelot/felix_vsc9959.c +++ b/drivers/net/dsa/ocelot/felix_vsc9959.c @@ -1006,9 +1006,27 @@ static u16 vsc9959_wm_enc(u16 value) return value; } +static u16 vsc9959_wm_dec(u16 wm) +{ + WARN_ON(wm & ~GENMASK(8, 0)); + + if (wm & BIT(8)) + return (wm & GENMASK(7, 0)) * 16; + + return wm; +} + +static void vsc9959_wm_stat(u32 val, u32 *inuse, u32 *maxuse) +{ + *inuse = (val & GENMASK(23, 12)) >> 12; + *maxuse = val & GENMASK(11, 0); +} + static const struct ocelot_ops vsc9959_ops = { .reset = vsc9959_reset, .wm_enc = vsc9959_wm_enc, + .wm_dec = vsc9959_wm_dec, + .wm_stat = vsc9959_wm_stat, .port_to_netdev = felix_port_to_netdev, .netdev_to_port = felix_netdev_to_port, }; diff --git a/drivers/net/dsa/ocelot/seville_vsc9953.c b/drivers/net/dsa/ocelot/seville_vsc9953.c index b72813da6d9f..8dad0c894eca 100644 --- a/drivers/net/dsa/ocelot/seville_vsc9953.c +++ b/drivers/net/dsa/ocelot/seville_vsc9953.c @@ -1057,9 +1057,27 @@ static u16 vsc9953_wm_enc(u16 value) return value; } +static u16 vsc9953_wm_dec(u16 wm) +{ + WARN_ON(wm & ~GENMASK(9, 0)); + + if (wm & BIT(9)) + return (wm & GENMASK(8, 0)) * 16; + + return wm; +} + +static void vsc9953_wm_stat(u32 val, u32 *inuse, u32 *maxuse) +{ + *inuse = (val & GENMASK(25, 13)) >> 13; + *maxuse = val & GENMASK(12, 0); +} + static const struct ocelot_ops vsc9953_ops = { .reset = vsc9953_reset, .wm_enc = vsc9953_wm_enc, + .wm_dec = vsc9953_wm_dec, + .wm_stat = vsc9953_wm_stat, .port_to_netdev = felix_port_to_netdev, .netdev_to_port = felix_netdev_to_port, }; diff --git a/drivers/net/ethernet/mscc/ocelot_vsc7514.c b/drivers/net/ethernet/mscc/ocelot_vsc7514.c index 7135ad18affe..ecd474476cc6 100644 --- a/drivers/net/ethernet/mscc/ocelot_vsc7514.c +++ b/drivers/net/ethernet/mscc/ocelot_vsc7514.c @@ -763,9 +763,25 @@ static u16 ocelot_wm_enc(u16 value) return value; } +static u16 ocelot_wm_dec(u16 wm) +{ + if (wm & BIT(8)) + return (wm & GENMASK(7, 0)) * 16; + + return wm; +} + +static void ocelot_wm_stat(u32 val, u32 *inuse, u32 *maxuse) +{ + *inuse = (val & GENMASK(23, 12)) >> 12; + *maxuse = val & GENMASK(11, 0); +} + static const struct ocelot_ops ocelot_ops = { .reset = ocelot_reset, .wm_enc = ocelot_wm_enc, + .wm_dec = ocelot_wm_dec, + .wm_stat = ocelot_wm_stat, .port_to_netdev = ocelot_port_to_netdev, .netdev_to_port = ocelot_netdev_to_port, }; diff --git a/include/soc/mscc/ocelot.h b/include/soc/mscc/ocelot.h index c6c131142195..8eb134cd8d9d 100644 --- a/include/soc/mscc/ocelot.h +++ b/include/soc/mscc/ocelot.h @@ -563,6 +563,8 @@ struct ocelot_ops { int (*netdev_to_port)(struct net_device *dev); int (*reset)(struct ocelot *ocelot); u16 (*wm_enc)(u16 value); + u16 (*wm_dec)(u16 value); + void (*wm_stat)(u32 val, u32 *inuse, u32 *maxuse); }; struct ocelot_vcap_block { diff --git a/include/soc/mscc/ocelot_qsys.h b/include/soc/mscc/ocelot_qsys.h index b7b263a19068..9731895be643 100644 --- a/include/soc/mscc/ocelot_qsys.h +++ b/include/soc/mscc/ocelot_qsys.h @@ -71,12 +71,6 @@ #define QSYS_RES_STAT_GSZ 0x8 -#define QSYS_RES_STAT_INUSE(x) (((x) << 12) & GENMASK(23, 12)) -#define QSYS_RES_STAT_INUSE_M GENMASK(23, 12) -#define QSYS_RES_STAT_INUSE_X(x) (((x) & GENMASK(23, 12)) >> 12) -#define QSYS_RES_STAT_MAXUSE(x) ((x) & GENMASK(11, 0)) -#define QSYS_RES_STAT_MAXUSE_M GENMASK(11, 0) - #define QSYS_MMGT_EQ_CTRL_FP_FREE_CNT(x) ((x) & GENMASK(15, 0)) #define QSYS_MMGT_EQ_CTRL_FP_FREE_CNT_M GENMASK(15, 0) From patchwork Fri Jan 8 17:59:43 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vladimir Oltean X-Patchwork-Id: 12007177 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=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 B13B8C433E0 for ; Fri, 8 Jan 2021 18:03:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5F98223A63 for ; Fri, 8 Jan 2021 18:03:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728580AbhAHSDR (ORCPT ); Fri, 8 Jan 2021 13:03:17 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59848 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728505AbhAHSDQ (ORCPT ); Fri, 8 Jan 2021 13:03:16 -0500 Received: from mail-ed1-x534.google.com (mail-ed1-x534.google.com [IPv6:2a00:1450:4864:20::534]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DE93DC0612FD for ; Fri, 8 Jan 2021 10:02:35 -0800 (PST) Received: by mail-ed1-x534.google.com with SMTP id i24so12036300edj.8 for ; Fri, 08 Jan 2021 10:02:35 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=wYb466xgD2XK0n7/TGo5doWD9P4goiLTKDL7CbyCG98=; b=ionIBHsaN5zETYBAXBvCwCQowvbuwGA9jYYxKPlO4gBRyONhmoXEzvB2XnLfnGhcmp /d09KcR5ogUTM8wlln+lPAUx4sJT4TXIYyHcnhqB16b1o4vcXQmM7YceTOJDyFNtIpJ0 pApOYiYjOn3BoEkvR7d5iYc14XSLGs46XBKN1VX3zUdOYXXSmWY/WF7rlTWuL772A9+d Ba6Uy3lyb60Z705CW98AorPBTewvK6EIEsjR5cT0MIQ8hCCgxh3utt1YkBqf8MWU16+I HW6hxUtTa6yrHO3KtXAkvIE9kQIa+9WRJ7R+axXavvRhlC0Sfvgj9OiN1tt46TB6HBQS 4Lrw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=wYb466xgD2XK0n7/TGo5doWD9P4goiLTKDL7CbyCG98=; b=MhPdMi+azCpEwj3kBbu0I6PIx0sHG8UIzWU7OB2u65P5tZe0B0lq/E6CWCldZyIM3e 5wmZ2t3OXhOKc3BAQYzx2vPC/tCMLnDFkr5/HqgDyuhf4vySX1rxVkSdvxGA9ukG0WYH qwnbnomsulCIpnVBG266EGGkaqqiO3fgOk93kGvAuDZ/XWW9Q8r6Lk3uKnLIO7Hbl7ay iRYRMvpuJqOOENjhDezrC85tkCnvtio+/RUja2e6T2ndLTHDDqTN+M1T/9RxAPmDOTW9 G40eni7PNOZnRovAOiMaCsSIBcKxKtq4YvpiCQyjxdQGiuCvSg8HwL/P1M7H6RKOBiny d/AA== X-Gm-Message-State: AOAM532MgAIhWcJj7FIvQ2kjTyIXW+0Sm4mPxqh+Q2lXkTkrtXq9dBTU SrP+9jjmmwVo5MFmt+Gp3YXlUWD/q3A= X-Google-Smtp-Source: ABdhPJwGNinSLlC94HjujkhgWay9uOr3zMHnf2lxuo9fsZp0LG0xECBZWS8CWogwfs5EneBPZPZ4RQ== X-Received: by 2002:a50:e719:: with SMTP id a25mr6089548edn.12.1610128954345; Fri, 08 Jan 2021 10:02:34 -0800 (PST) Received: from localhost.localdomain (5-12-227-87.residential.rdsnet.ro. [5.12.227.87]) by smtp.gmail.com with ESMTPSA id b19sm4059713edx.47.2021.01.08.10.02.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 08 Jan 2021 10:02:33 -0800 (PST) From: Vladimir Oltean To: netdev@vger.kernel.org Cc: alexandre.belloni@bootlin.com, andrew@lunn.ch, f.fainelli@gmail.com, vivien.didelot@gmail.com, alexandru.marginean@nxp.com, claudiu.manoil@nxp.com, xiaoliang.yang_1@nxp.com, hongbo.wang@nxp.com, kuba@kernel.org, jiri@resnulli.us, idosch@idosch.org, UNGLinuxDriver@microchip.com Subject: [PATCH v3 net-next 03/10] net: dsa: add ops for devlink-sb Date: Fri, 8 Jan 2021 19:59:43 +0200 Message-Id: <20210108175950.484854-4-olteanv@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210108175950.484854-1-olteanv@gmail.com> References: <20210108175950.484854-1-olteanv@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org From: Vladimir Oltean Switches that care about QoS might have hardware support for reserving buffer pools for individual ports or traffic classes, and configuring their sizes and thresholds. Through devlink-sb (shared buffers), this is all configurable, as well as their occupancy being viewable. Add the plumbing in DSA for these operations. Individual drivers still need to call devlink_sb_register() with the shared buffers they want to expose. A helper was not created in DSA for this purpose (unlike, say, dsa_devlink_params_register), since in my opinion it does not bring any benefit over plainly calling devlink_sb_register() directly. Signed-off-by: Vladimir Oltean Reviewed-by: Andrew Lunn Reviewed-by: Florian Fainelli --- Changes in v3: Use the helpers added by Andrew to convert from devlink and devlink_port to DSA structures rather than open-coding them. Changes in v2: None. include/net/dsa.h | 34 ++++++++++ net/dsa/dsa2.c | 159 +++++++++++++++++++++++++++++++++++++++++++++- 2 files changed, 192 insertions(+), 1 deletion(-) diff --git a/include/net/dsa.h b/include/net/dsa.h index 9a0cab5fb7c4..b64fd53d7fce 100644 --- a/include/net/dsa.h +++ b/include/net/dsa.h @@ -650,6 +650,40 @@ struct dsa_switch_ops { int (*devlink_info_get)(struct dsa_switch *ds, struct devlink_info_req *req, struct netlink_ext_ack *extack); + int (*devlink_sb_pool_get)(struct dsa_switch *ds, + unsigned int sb_index, u16 pool_index, + struct devlink_sb_pool_info *pool_info); + int (*devlink_sb_pool_set)(struct dsa_switch *ds, unsigned int sb_index, + u16 pool_index, u32 size, + enum devlink_sb_threshold_type threshold_type, + struct netlink_ext_ack *extack); + int (*devlink_sb_port_pool_get)(struct dsa_switch *ds, int port, + unsigned int sb_index, u16 pool_index, + u32 *p_threshold); + int (*devlink_sb_port_pool_set)(struct dsa_switch *ds, int port, + unsigned int sb_index, u16 pool_index, + u32 threshold, + struct netlink_ext_ack *extack); + int (*devlink_sb_tc_pool_bind_get)(struct dsa_switch *ds, int port, + unsigned int sb_index, u16 tc_index, + enum devlink_sb_pool_type pool_type, + u16 *p_pool_index, u32 *p_threshold); + int (*devlink_sb_tc_pool_bind_set)(struct dsa_switch *ds, int port, + unsigned int sb_index, u16 tc_index, + enum devlink_sb_pool_type pool_type, + u16 pool_index, u32 threshold, + struct netlink_ext_ack *extack); + int (*devlink_sb_occ_snapshot)(struct dsa_switch *ds, + unsigned int sb_index); + int (*devlink_sb_occ_max_clear)(struct dsa_switch *ds, + unsigned int sb_index); + int (*devlink_sb_occ_port_pool_get)(struct dsa_switch *ds, int port, + unsigned int sb_index, u16 pool_index, + u32 *p_cur, u32 *p_max); + int (*devlink_sb_occ_tc_port_bind_get)(struct dsa_switch *ds, int port, + unsigned int sb_index, u16 tc_index, + enum devlink_sb_pool_type pool_type, + u32 *p_cur, u32 *p_max); /* * MTU change functionality. Switches can also adjust their MRU through diff --git a/net/dsa/dsa2.c b/net/dsa/dsa2.c index 01f21b0b379a..c05b1b54c4f7 100644 --- a/net/dsa/dsa2.c +++ b/net/dsa/dsa2.c @@ -400,8 +400,165 @@ static int dsa_devlink_info_get(struct devlink *dl, return -EOPNOTSUPP; } +static int dsa_devlink_sb_pool_get(struct devlink *dl, + unsigned int sb_index, u16 pool_index, + struct devlink_sb_pool_info *pool_info) +{ + struct dsa_switch *ds = dsa_devlink_to_ds(dl); + + if (!ds->ops->devlink_sb_pool_get) + return -EOPNOTSUPP; + + return ds->ops->devlink_sb_pool_get(ds, sb_index, pool_index, + pool_info); +} + +static int dsa_devlink_sb_pool_set(struct devlink *dl, unsigned int sb_index, + u16 pool_index, u32 size, + enum devlink_sb_threshold_type threshold_type, + struct netlink_ext_ack *extack) +{ + struct dsa_switch *ds = dsa_devlink_to_ds(dl); + + if (!ds->ops->devlink_sb_pool_set) + return -EOPNOTSUPP; + + return ds->ops->devlink_sb_pool_set(ds, sb_index, pool_index, size, + threshold_type, extack); +} + +static int dsa_devlink_sb_port_pool_get(struct devlink_port *dlp, + unsigned int sb_index, u16 pool_index, + u32 *p_threshold) +{ + struct dsa_switch *ds = dsa_devlink_port_to_ds(dlp); + int port = dsa_devlink_port_to_port(dlp); + + if (!ds->ops->devlink_sb_port_pool_get) + return -EOPNOTSUPP; + + return ds->ops->devlink_sb_port_pool_get(ds, port, sb_index, + pool_index, p_threshold); +} + +static int dsa_devlink_sb_port_pool_set(struct devlink_port *dlp, + unsigned int sb_index, u16 pool_index, + u32 threshold, + struct netlink_ext_ack *extack) +{ + struct dsa_switch *ds = dsa_devlink_port_to_ds(dlp); + int port = dsa_devlink_port_to_port(dlp); + + if (!ds->ops->devlink_sb_port_pool_set) + return -EOPNOTSUPP; + + return ds->ops->devlink_sb_port_pool_set(ds, port, sb_index, + pool_index, threshold, extack); +} + +static int +dsa_devlink_sb_tc_pool_bind_get(struct devlink_port *dlp, + unsigned int sb_index, u16 tc_index, + enum devlink_sb_pool_type pool_type, + u16 *p_pool_index, u32 *p_threshold) +{ + struct dsa_switch *ds = dsa_devlink_port_to_ds(dlp); + int port = dsa_devlink_port_to_port(dlp); + + if (!ds->ops->devlink_sb_tc_pool_bind_get) + return -EOPNOTSUPP; + + return ds->ops->devlink_sb_tc_pool_bind_get(ds, port, sb_index, + tc_index, pool_type, + p_pool_index, p_threshold); +} + +static int +dsa_devlink_sb_tc_pool_bind_set(struct devlink_port *dlp, + unsigned int sb_index, u16 tc_index, + enum devlink_sb_pool_type pool_type, + u16 pool_index, u32 threshold, + struct netlink_ext_ack *extack) +{ + struct dsa_switch *ds = dsa_devlink_port_to_ds(dlp); + int port = dsa_devlink_port_to_port(dlp); + + if (!ds->ops->devlink_sb_tc_pool_bind_set) + return -EOPNOTSUPP; + + return ds->ops->devlink_sb_tc_pool_bind_set(ds, port, sb_index, + tc_index, pool_type, + pool_index, threshold, + extack); +} + +static int dsa_devlink_sb_occ_snapshot(struct devlink *dl, + unsigned int sb_index) +{ + struct dsa_switch *ds = dsa_devlink_to_ds(dl); + + if (!ds->ops->devlink_sb_occ_snapshot) + return -EOPNOTSUPP; + + return ds->ops->devlink_sb_occ_snapshot(ds, sb_index); +} + +static int dsa_devlink_sb_occ_max_clear(struct devlink *dl, + unsigned int sb_index) +{ + struct dsa_switch *ds = dsa_devlink_to_ds(dl); + + if (!ds->ops->devlink_sb_occ_max_clear) + return -EOPNOTSUPP; + + return ds->ops->devlink_sb_occ_max_clear(ds, sb_index); +} + +static int dsa_devlink_sb_occ_port_pool_get(struct devlink_port *dlp, + unsigned int sb_index, + u16 pool_index, u32 *p_cur, + u32 *p_max) +{ + struct dsa_switch *ds = dsa_devlink_port_to_ds(dlp); + int port = dsa_devlink_port_to_port(dlp); + + if (!ds->ops->devlink_sb_occ_port_pool_get) + return -EOPNOTSUPP; + + return ds->ops->devlink_sb_occ_port_pool_get(ds, port, sb_index, + pool_index, p_cur, p_max); +} + +static int +dsa_devlink_sb_occ_tc_port_bind_get(struct devlink_port *dlp, + unsigned int sb_index, u16 tc_index, + enum devlink_sb_pool_type pool_type, + u32 *p_cur, u32 *p_max) +{ + struct dsa_switch *ds = dsa_devlink_port_to_ds(dlp); + int port = dsa_devlink_port_to_port(dlp); + + if (!ds->ops->devlink_sb_occ_tc_port_bind_get) + return -EOPNOTSUPP; + + return ds->ops->devlink_sb_occ_tc_port_bind_get(ds, port, + sb_index, tc_index, + pool_type, p_cur, + p_max); +} + static const struct devlink_ops dsa_devlink_ops = { - .info_get = dsa_devlink_info_get, + .info_get = dsa_devlink_info_get, + .sb_pool_get = dsa_devlink_sb_pool_get, + .sb_pool_set = dsa_devlink_sb_pool_set, + .sb_port_pool_get = dsa_devlink_sb_port_pool_get, + .sb_port_pool_set = dsa_devlink_sb_port_pool_set, + .sb_tc_pool_bind_get = dsa_devlink_sb_tc_pool_bind_get, + .sb_tc_pool_bind_set = dsa_devlink_sb_tc_pool_bind_set, + .sb_occ_snapshot = dsa_devlink_sb_occ_snapshot, + .sb_occ_max_clear = dsa_devlink_sb_occ_max_clear, + .sb_occ_port_pool_get = dsa_devlink_sb_occ_port_pool_get, + .sb_occ_tc_port_bind_get = dsa_devlink_sb_occ_tc_port_bind_get, }; static int dsa_switch_setup(struct dsa_switch *ds) From patchwork Fri Jan 8 17:59:44 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vladimir Oltean X-Patchwork-Id: 12007179 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=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 C505AC433E6 for ; Fri, 8 Jan 2021 18:03:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7BB3D23A69 for ; Fri, 8 Jan 2021 18:03:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728594AbhAHSDT (ORCPT ); Fri, 8 Jan 2021 13:03:19 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59856 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728505AbhAHSDS (ORCPT ); Fri, 8 Jan 2021 13:03:18 -0500 Received: from mail-ed1-x531.google.com (mail-ed1-x531.google.com [IPv6:2a00:1450:4864:20::531]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id ACF13C0612FE for ; Fri, 8 Jan 2021 10:02:37 -0800 (PST) Received: by mail-ed1-x531.google.com with SMTP id cm17so12090520edb.4 for ; Fri, 08 Jan 2021 10:02:37 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=0H+/CrGOqkHdl+2RnJ+7vuPp1WMci7E5bQKhlm/uHiI=; b=jXaavkuKe417LMlinttxVWBOY7qBuGIpJUhcGLno9hhqncIUGdeHlbgvfBZsWs3TxI xnxsZbn+1BvQeY281T7UjtndwLOEyLE0bzCrZyHaUe8nIYrfWEH0m+0LALyL32Q1IWuN 08J7XTo4MdXJvWLdAiHmnCeWERxYjCTlyjUf3Ou0UqLWXZ6UksIn+4MBEDeIXc7VrSZp kRTrQWEntIhgPxwn4LAgZQ6M/lRPBf7MRhmhLyRfIsE+v8gb1Rg3wUlO1mLdI4cKX+5Z /gBL5h/eyoaEcJwTnHcKkkTV5xeg7aUhWc+i+DVPqP4w7SxTjLzPFfmQ+NfT4d2DhluV KwDQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=0H+/CrGOqkHdl+2RnJ+7vuPp1WMci7E5bQKhlm/uHiI=; b=t8JOQDRhm8SsGLRsRkoKTqemYDI8wE3z2hRg/HA/dMz0MmUlFk40iI88+z/WYhEk0J Q00PEycByaGXuq2AEeAfH+9JmNA1OkS1EN9H20aTlGWq5a3Ftt53Rob5eQoKIz8k490i djjXAaZ4QpcdsOCZJ/3YdKs+PnqOfWRR7Fb3sO3t9K13GrjG+GA5CRSulp6PLVbKCQdw Wdx2VauIvJPBPtRBmvUvQO0gADZ9LLgW7Z9PiSVChFobtspE6Wpgot5AV7TEljKQOUML lfpSBX2pyYilv9uW8zvhC/r4L+VGzStlST1OwRzApoy2e9IJG0NtbqeH6EAMTWjWkvFi 9Pag== X-Gm-Message-State: AOAM533JiXeIcQ7ooq2az3g0lq75Az4N6Jw1RRboXkW70HyG3LxrELII mtG0nSzcdEyNl5RhpHEflTrkErkFOE0= X-Google-Smtp-Source: ABdhPJycvqI5YiFcD+cctqdoIShK55bPvyBV54ONfDloMyNeME4P8jY6XiGohWMJqn+/nM872vfdLQ== X-Received: by 2002:aa7:c813:: with SMTP id a19mr5855214edt.192.1610128956169; Fri, 08 Jan 2021 10:02:36 -0800 (PST) Received: from localhost.localdomain (5-12-227-87.residential.rdsnet.ro. [5.12.227.87]) by smtp.gmail.com with ESMTPSA id b19sm4059713edx.47.2021.01.08.10.02.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 08 Jan 2021 10:02:35 -0800 (PST) From: Vladimir Oltean To: netdev@vger.kernel.org Cc: alexandre.belloni@bootlin.com, andrew@lunn.ch, f.fainelli@gmail.com, vivien.didelot@gmail.com, alexandru.marginean@nxp.com, claudiu.manoil@nxp.com, xiaoliang.yang_1@nxp.com, hongbo.wang@nxp.com, kuba@kernel.org, jiri@resnulli.us, idosch@idosch.org, UNGLinuxDriver@microchip.com Subject: [PATCH v3 net-next 04/10] net: dsa: felix: reindent struct dsa_switch_ops Date: Fri, 8 Jan 2021 19:59:44 +0200 Message-Id: <20210108175950.484854-5-olteanv@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210108175950.484854-1-olteanv@gmail.com> References: <20210108175950.484854-1-olteanv@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org From: Vladimir Oltean The devlink function pointer names are super long, and they would break the alignment. So reindent the existing ops now by adding one tab. Signed-off-by: Vladimir Oltean Reviewed-by: Florian Fainelli --- Changes in v3: None. Changes in v2: None. drivers/net/dsa/ocelot/felix.c | 78 +++++++++++++++++----------------- 1 file changed, 39 insertions(+), 39 deletions(-) diff --git a/drivers/net/dsa/ocelot/felix.c b/drivers/net/dsa/ocelot/felix.c index a2e06a0d1509..79d0508e5910 100644 --- a/drivers/net/dsa/ocelot/felix.c +++ b/drivers/net/dsa/ocelot/felix.c @@ -781,45 +781,45 @@ static int felix_port_setup_tc(struct dsa_switch *ds, int port, } const struct dsa_switch_ops felix_switch_ops = { - .get_tag_protocol = felix_get_tag_protocol, - .setup = felix_setup, - .teardown = felix_teardown, - .set_ageing_time = felix_set_ageing_time, - .get_strings = felix_get_strings, - .get_ethtool_stats = felix_get_ethtool_stats, - .get_sset_count = felix_get_sset_count, - .get_ts_info = felix_get_ts_info, - .phylink_validate = felix_phylink_validate, - .phylink_mac_config = felix_phylink_mac_config, - .phylink_mac_link_down = felix_phylink_mac_link_down, - .phylink_mac_link_up = felix_phylink_mac_link_up, - .port_enable = felix_port_enable, - .port_disable = felix_port_disable, - .port_fdb_dump = felix_fdb_dump, - .port_fdb_add = felix_fdb_add, - .port_fdb_del = felix_fdb_del, - .port_mdb_prepare = felix_mdb_prepare, - .port_mdb_add = felix_mdb_add, - .port_mdb_del = felix_mdb_del, - .port_bridge_join = felix_bridge_join, - .port_bridge_leave = felix_bridge_leave, - .port_stp_state_set = felix_bridge_stp_state_set, - .port_vlan_prepare = felix_vlan_prepare, - .port_vlan_filtering = felix_vlan_filtering, - .port_vlan_add = felix_vlan_add, - .port_vlan_del = felix_vlan_del, - .port_hwtstamp_get = felix_hwtstamp_get, - .port_hwtstamp_set = felix_hwtstamp_set, - .port_rxtstamp = felix_rxtstamp, - .port_txtstamp = felix_txtstamp, - .port_change_mtu = felix_change_mtu, - .port_max_mtu = felix_get_max_mtu, - .port_policer_add = felix_port_policer_add, - .port_policer_del = felix_port_policer_del, - .cls_flower_add = felix_cls_flower_add, - .cls_flower_del = felix_cls_flower_del, - .cls_flower_stats = felix_cls_flower_stats, - .port_setup_tc = felix_port_setup_tc, + .get_tag_protocol = felix_get_tag_protocol, + .setup = felix_setup, + .teardown = felix_teardown, + .set_ageing_time = felix_set_ageing_time, + .get_strings = felix_get_strings, + .get_ethtool_stats = felix_get_ethtool_stats, + .get_sset_count = felix_get_sset_count, + .get_ts_info = felix_get_ts_info, + .phylink_validate = felix_phylink_validate, + .phylink_mac_config = felix_phylink_mac_config, + .phylink_mac_link_down = felix_phylink_mac_link_down, + .phylink_mac_link_up = felix_phylink_mac_link_up, + .port_enable = felix_port_enable, + .port_disable = felix_port_disable, + .port_fdb_dump = felix_fdb_dump, + .port_fdb_add = felix_fdb_add, + .port_fdb_del = felix_fdb_del, + .port_mdb_prepare = felix_mdb_prepare, + .port_mdb_add = felix_mdb_add, + .port_mdb_del = felix_mdb_del, + .port_bridge_join = felix_bridge_join, + .port_bridge_leave = felix_bridge_leave, + .port_stp_state_set = felix_bridge_stp_state_set, + .port_vlan_prepare = felix_vlan_prepare, + .port_vlan_filtering = felix_vlan_filtering, + .port_vlan_add = felix_vlan_add, + .port_vlan_del = felix_vlan_del, + .port_hwtstamp_get = felix_hwtstamp_get, + .port_hwtstamp_set = felix_hwtstamp_set, + .port_rxtstamp = felix_rxtstamp, + .port_txtstamp = felix_txtstamp, + .port_change_mtu = felix_change_mtu, + .port_max_mtu = felix_get_max_mtu, + .port_policer_add = felix_port_policer_add, + .port_policer_del = felix_port_policer_del, + .cls_flower_add = felix_cls_flower_add, + .cls_flower_del = felix_cls_flower_del, + .cls_flower_stats = felix_cls_flower_stats, + .port_setup_tc = felix_port_setup_tc, }; struct net_device *felix_port_to_netdev(struct ocelot *ocelot, int port) From patchwork Fri Jan 8 17:59:45 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vladimir Oltean X-Patchwork-Id: 12007191 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=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 76238C433E0 for ; Fri, 8 Jan 2021 18:04:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4DAFB23A6C for ; Fri, 8 Jan 2021 18:04:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728619AbhAHSDy (ORCPT ); Fri, 8 Jan 2021 13:03:54 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59952 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728350AbhAHSDy (ORCPT ); Fri, 8 Jan 2021 13:03:54 -0500 Received: from mail-ej1-x62f.google.com (mail-ej1-x62f.google.com [IPv6:2a00:1450:4864:20::62f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 12F86C0612FF for ; Fri, 8 Jan 2021 10:02:39 -0800 (PST) Received: by mail-ej1-x62f.google.com with SMTP id q22so15734162eja.2 for ; Fri, 08 Jan 2021 10:02:39 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=ib0uaWDINGMGCys32NkHPElpClnDIVBeWgczTXiJSa8=; b=R4+0v/zkzQIyNg/B9iTXGXd+dukJ6Mwpy8I5yYhgDUMUXAn+guOAoA/viQ4p0DM3E5 nY1MMrWGnjuM4Y7b5514Rz1SALH/RrgHsHDOA5HHTZz1UvKOQC/VSVtOOc+f54dhbCOt MeCOnQGuaeCz2C/bk+FHMri+cu5VpI1xLGuCwMYkiKn88W38E2VvVsAaoE41flxj8ILQ XY6eSzuTgX5d/hSy1MDjztlKPe1R76p7cKt7qXmMDt/q+QwK1GBw36l8rxdUREOCdL9o CFHB12Y+y3gxhPPneHFCk+Yoo2UgDWc6yE16eUBoCCH8X1Z2LulhvxHaxg9f3h+n3S4W smag== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=ib0uaWDINGMGCys32NkHPElpClnDIVBeWgczTXiJSa8=; b=fXqBKNdka42ykFkJXN2KqnsJpi4d5XdwBIgqk6IN0LObcKh59CW6OUrF+ByMM6KyCT bO/NjRoKf4tbzqNBFV7PRwXwOrSlG+9PDjwWLGVmtd6d4/0yxNK/d2tXEI7sOCI5Xjrh tM1Y2YVZukSPk7BYfoDZVTuwDMxEJ6ovU6IbaCnE+GhC2TYEI4NdAu5ufBc45k9Jg6ez kL6THUwda4K5Sx1VxM+KFtVjv2GVG7TtwIbwkzfoeAqY7j/qmT5pZH0bD5lFRrwHuY2n 75OjVZN9wFXJYbVEThGUcJ7+0SRi/u7m0TSLrQOh4ztr61OwVLZQSVgazInh+0WbjRNT 5gDw== X-Gm-Message-State: AOAM532JyBdNHYQgXyuGh5dpk5rUvokT1dpbI7H321dFkUjIoEfjRQ3y +R7xaMOjjCxaram3ee0FwyhsmbzKZzs= X-Google-Smtp-Source: ABdhPJwVMlyqF9wMe0+uAdM+DQu5u0i8Q00mQhj1dC4Q6qyujGOxtrD72jv1kLXlhmoo3mb7pu0tvA== X-Received: by 2002:a17:906:f949:: with SMTP id ld9mr3473278ejb.401.1610128957544; Fri, 08 Jan 2021 10:02:37 -0800 (PST) Received: from localhost.localdomain (5-12-227-87.residential.rdsnet.ro. [5.12.227.87]) by smtp.gmail.com with ESMTPSA id b19sm4059713edx.47.2021.01.08.10.02.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 08 Jan 2021 10:02:37 -0800 (PST) From: Vladimir Oltean To: netdev@vger.kernel.org Cc: alexandre.belloni@bootlin.com, andrew@lunn.ch, f.fainelli@gmail.com, vivien.didelot@gmail.com, alexandru.marginean@nxp.com, claudiu.manoil@nxp.com, xiaoliang.yang_1@nxp.com, hongbo.wang@nxp.com, kuba@kernel.org, jiri@resnulli.us, idosch@idosch.org, UNGLinuxDriver@microchip.com Subject: [PATCH v3 net-next 05/10] net: dsa: felix: perform teardown in reverse order of setup Date: Fri, 8 Jan 2021 19:59:45 +0200 Message-Id: <20210108175950.484854-6-olteanv@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210108175950.484854-1-olteanv@gmail.com> References: <20210108175950.484854-1-olteanv@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org From: Vladimir Oltean In general it is desirable that cleanup is the reverse process of setup. In this case I am not seeing any particular issue, but with the introduction of devlink-sb for felix, a non-obvious decision had to be made as to where to put its cleanup method. When there's a convention in place, that decision becomes obvious. Signed-off-by: Vladimir Oltean Reviewed-by: Florian Fainelli --- Changes in v3: None. Changes in v2: None. drivers/net/dsa/ocelot/felix.c | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) diff --git a/drivers/net/dsa/ocelot/felix.c b/drivers/net/dsa/ocelot/felix.c index 79d0508e5910..42770a86e871 100644 --- a/drivers/net/dsa/ocelot/felix.c +++ b/drivers/net/dsa/ocelot/felix.c @@ -639,14 +639,13 @@ static void felix_teardown(struct dsa_switch *ds) struct felix *felix = ocelot_to_felix(ocelot); int port; - if (felix->info->mdio_bus_free) - felix->info->mdio_bus_free(ocelot); - + if (ocelot->ptp) + ocelot_deinit_timestamp(ocelot); + ocelot_deinit(ocelot); for (port = 0; port < ocelot->num_phys_ports; port++) ocelot_deinit_port(ocelot, port); - ocelot_deinit_timestamp(ocelot); - /* stop workqueue thread */ - ocelot_deinit(ocelot); + if (felix->info->mdio_bus_free) + felix->info->mdio_bus_free(ocelot); } static int felix_hwtstamp_get(struct dsa_switch *ds, int port, From patchwork Fri Jan 8 17:59:46 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vladimir Oltean X-Patchwork-Id: 12007183 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=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 9BF2FC433E0 for ; Fri, 8 Jan 2021 18:03:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 678E823A68 for ; Fri, 8 Jan 2021 18:03:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728645AbhAHSDz (ORCPT ); Fri, 8 Jan 2021 13:03:55 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59954 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728561AbhAHSDy (ORCPT ); Fri, 8 Jan 2021 13:03:54 -0500 Received: from mail-ej1-x62a.google.com (mail-ej1-x62a.google.com [IPv6:2a00:1450:4864:20::62a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5D77BC06129C for ; Fri, 8 Jan 2021 10:02:40 -0800 (PST) Received: by mail-ej1-x62a.google.com with SMTP id x16so15656763ejj.7 for ; Fri, 08 Jan 2021 10:02:40 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=vZtUlZCZfzf06Tx5MGStuprMYc1JfWJ+r+y9bMDBcqM=; b=H2UzJ9u7KODS29OYcIX82LQ3eEAixeIRo32lVKku7s2PQTwdiipaa2BhxP97WnPOQE yHB2E+4iRNOVXKi+LBw0fEAzTB0KIn4uK2+2a/lyyNfatSk33Dir3HfIIPuezCV7DuyZ ksytrVbQ6na9jSxtf1PtS8+DZw+jNH3MNdboDPXBwSwv//jfFVF/BPZv1auyqJvyHGeJ Zh3AE2AhXuzYQjohdycNTXVXyTK/bmZcGJGTBK8RkuOcffTICWYf1poWfmdKxasGNvd1 NlialukGamdAC064o8UAObQytoRzdiofaHGmVBq8qB9ZT+zH2TOGZ5oWKvG0u7l4c5B8 EC5A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=vZtUlZCZfzf06Tx5MGStuprMYc1JfWJ+r+y9bMDBcqM=; b=EsnFBhKWUFlS1r0Xn2I5VxKSGvMDSm2UdMU0T7XPnvXNqAtjcWwCybcGsBvA9FdvKu OJqRLRR9Mgxc43QIYrFySK/+SrHhNW32GAfi/lRt3Xl+pJXcgnv5+GKRF133Wc9DtwIY skSOx+aYK7/sVy3Ym2mPTApHGnVqt5ut4nmpzjQx9rznS3AIxoUB7i9dXM4ZAoxXUpcz IJ2k8q6DKYFCi8EngNBjkiX6wgi6UFJ0Cz2NHeAgNfsBfiuq4iNAajaUCkoa8nNQeP8a mRssyroVFrGIpDRdl1/eEU0EPz0EP1/YZU5stjBUuKk36SkiNDVGAyuIsezZjIRlSN4y Wh1Q== X-Gm-Message-State: AOAM530jPhHVt3PHRSpEMc20Prjhn2LTGvjiRuA0UIPaDcoE3j9X6z2+ 5rlYJGuZPYiiHUMHzCuMwdkNyOQMtLY= X-Google-Smtp-Source: ABdhPJxnyt8w6zTeaSU293Szd6Yx/8N66JP1x2B2vzsc3I2zZpm2Lb/NBV6wg978Eft7kJRA+MlXWA== X-Received: by 2002:a17:906:495b:: with SMTP id f27mr3452169ejt.338.1610128958813; Fri, 08 Jan 2021 10:02:38 -0800 (PST) Received: from localhost.localdomain (5-12-227-87.residential.rdsnet.ro. [5.12.227.87]) by smtp.gmail.com with ESMTPSA id b19sm4059713edx.47.2021.01.08.10.02.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 08 Jan 2021 10:02:38 -0800 (PST) From: Vladimir Oltean To: netdev@vger.kernel.org Cc: alexandre.belloni@bootlin.com, andrew@lunn.ch, f.fainelli@gmail.com, vivien.didelot@gmail.com, alexandru.marginean@nxp.com, claudiu.manoil@nxp.com, xiaoliang.yang_1@nxp.com, hongbo.wang@nxp.com, kuba@kernel.org, jiri@resnulli.us, idosch@idosch.org, UNGLinuxDriver@microchip.com Subject: [PATCH v3 net-next 06/10] net: mscc: ocelot: export NUM_TC constant from felix to common switch lib Date: Fri, 8 Jan 2021 19:59:46 +0200 Message-Id: <20210108175950.484854-7-olteanv@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210108175950.484854-1-olteanv@gmail.com> References: <20210108175950.484854-1-olteanv@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org From: Vladimir Oltean We should be moving anything that isn't DSA-specific or SoC-specific out of the felix DSA driver, and into the common mscc_ocelot switch library. The number of traffic classes is one of the aspects that is common between all ocelot switches, so it belongs in the library. This patch also makes seville use 8 TX queues, and therefore enables prioritization via the QOS_CLASS field in the NPI injection header. Signed-off-by: Vladimir Oltean Reviewed-by: Florian Fainelli --- Changes in v3: None. Changes in v2: Rebased on top of commit edd2410b165e ("net: mscc: ocelot: fix dropping of unknown IPv4 multicast on Seville"). drivers/net/dsa/ocelot/felix.c | 2 +- drivers/net/dsa/ocelot/felix.h | 1 - drivers/net/dsa/ocelot/felix_vsc9959.c | 4 ++-- drivers/net/dsa/ocelot/seville_vsc9953.c | 1 + include/soc/mscc/ocelot.h | 1 + 5 files changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/net/dsa/ocelot/felix.c b/drivers/net/dsa/ocelot/felix.c index 42770a86e871..f41f3476ae06 100644 --- a/drivers/net/dsa/ocelot/felix.c +++ b/drivers/net/dsa/ocelot/felix.c @@ -328,7 +328,7 @@ static void felix_port_qos_map_init(struct ocelot *ocelot, int port) ANA_PORT_QOS_CFG, port); - for (i = 0; i < FELIX_NUM_TC * 2; i++) { + for (i = 0; i < OCELOT_NUM_TC * 2; i++) { ocelot_rmw_ix(ocelot, (ANA_PORT_PCP_DEI_MAP_DP_PCP_DEI_VAL & i) | ANA_PORT_PCP_DEI_MAP_QOS_PCP_DEI_VAL(i), diff --git a/drivers/net/dsa/ocelot/felix.h b/drivers/net/dsa/ocelot/felix.h index 5434fe278d2c..994835cb9307 100644 --- a/drivers/net/dsa/ocelot/felix.h +++ b/drivers/net/dsa/ocelot/felix.h @@ -5,7 +5,6 @@ #define _MSCC_FELIX_H #define ocelot_to_felix(o) container_of((o), struct felix, ocelot) -#define FELIX_NUM_TC 8 /* Platform-specific information */ struct felix_info { diff --git a/drivers/net/dsa/ocelot/felix_vsc9959.c b/drivers/net/dsa/ocelot/felix_vsc9959.c index 540b86edbbb0..57d1d6767867 100644 --- a/drivers/net/dsa/ocelot/felix_vsc9959.c +++ b/drivers/net/dsa/ocelot/felix_vsc9959.c @@ -1376,7 +1376,7 @@ static const struct felix_info felix_info_vsc9959 = { .vcap = vsc9959_vcap_props, .num_mact_rows = 2048, .num_ports = 6, - .num_tx_queues = FELIX_NUM_TC, + .num_tx_queues = OCELOT_NUM_TC, .switch_pci_bar = 4, .imdio_pci_bar = 0, .ptp_caps = &vsc9959_ptp_caps, @@ -1446,7 +1446,7 @@ static int felix_pci_probe(struct pci_dev *pdev, pci_set_drvdata(pdev, felix); ocelot = &felix->ocelot; ocelot->dev = &pdev->dev; - ocelot->num_flooding_pgids = FELIX_NUM_TC; + ocelot->num_flooding_pgids = OCELOT_NUM_TC; felix->info = &felix_info_vsc9959; felix->switch_base = pci_resource_start(pdev, felix->info->switch_pci_bar); diff --git a/drivers/net/dsa/ocelot/seville_vsc9953.c b/drivers/net/dsa/ocelot/seville_vsc9953.c index 8dad0c894eca..5e9bfdea50be 100644 --- a/drivers/net/dsa/ocelot/seville_vsc9953.c +++ b/drivers/net/dsa/ocelot/seville_vsc9953.c @@ -1201,6 +1201,7 @@ static const struct felix_info seville_info_vsc9953 = { .vcap = vsc9953_vcap_props, .num_mact_rows = 2048, .num_ports = 10, + .num_tx_queues = OCELOT_NUM_TC, .mdio_bus_alloc = vsc9953_mdio_bus_alloc, .mdio_bus_free = vsc9953_mdio_bus_free, .phylink_validate = vsc9953_phylink_validate, diff --git a/include/soc/mscc/ocelot.h b/include/soc/mscc/ocelot.h index 8eb134cd8d9d..9a46787c679b 100644 --- a/include/soc/mscc/ocelot.h +++ b/include/soc/mscc/ocelot.h @@ -98,6 +98,7 @@ #define IFH_REW_OP_TWO_STEP_PTP 0x3 #define IFH_REW_OP_ORIGIN_PTP 0x5 +#define OCELOT_NUM_TC 8 #define OCELOT_TAG_LEN 16 #define OCELOT_SHORT_PREFIX_LEN 4 #define OCELOT_LONG_PREFIX_LEN 16 From patchwork Fri Jan 8 17:59:47 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vladimir Oltean X-Patchwork-Id: 12007193 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=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 5821EC433DB for ; Fri, 8 Jan 2021 18:04:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1ECE223A69 for ; Fri, 8 Jan 2021 18:04:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728609AbhAHSDy (ORCPT ); Fri, 8 Jan 2021 13:03:54 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59956 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726754AbhAHSDy (ORCPT ); Fri, 8 Jan 2021 13:03:54 -0500 Received: from mail-ej1-x635.google.com (mail-ej1-x635.google.com [IPv6:2a00:1450:4864:20::635]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A5BBFC06129D for ; Fri, 8 Jan 2021 10:02:41 -0800 (PST) Received: by mail-ej1-x635.google.com with SMTP id d17so15632920ejy.9 for ; Fri, 08 Jan 2021 10:02:41 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=IL3rzUKtT91yJjvVm/PEpRIcsHQmJVk80kX3o/NtNeE=; b=EmLaT5NQkMuLIeITEtFD5lVY+cPevyBntlmnVoSNNMfqSnds299peNqisZyMbr6PjM xr8tq3j1y3emGZIpjnhopU3c35smSAjkvi6+89nrxThg1Bh1VcLNyg1PFVzSRnQiJyDc EGV9wg3USX9y0u93fQUzfDNcA3hifibPwG95burMK9qIpXblezkOUS5dH5ctCCyNntjX 7OFCOaDXn6AlxxCtvMufyUx4fxOobZkgKkqvEuD0BJf1ALW90ntdnz6yLAgr/qj9UTOe 5cmsWfuE1A9VUWak4BAKpKSUL0181OymBC7WLQCGW/NJrDtLtYirrhzZjU+LK7dKO5US cAOQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=IL3rzUKtT91yJjvVm/PEpRIcsHQmJVk80kX3o/NtNeE=; b=rlAp+PfBAmTYNv2J0QPXCsh3fu21XDJRdTA8d42d29azLbYfKlbpQDcjhwuWyDQwHY h5FjqcCkIOsbswP0T36JokK1frJ70XZOGqfKV7IgditHH4Gfjkhq1ZVxwc8H364EmK3i M3h/5GiWU9YoWv2lK/RNSZ3VicwdIxiHd8SEE3/tpGnQBji60SfRzlUuQU1JD3vhkFIC 0oyEPlEJuFNwNn7RjGlE/M/O2R2aySBMMO6/sajmnZVJ/b/jFiLZeSx7K7SRsw42Iitj LHBZXVmYc02wVeTricaZKNOQ5GHq/9SVwbDHxicho6JICEwYT/wXmPIWgldWQu1HtJLl tFzQ== X-Gm-Message-State: AOAM532JyWktkX63XQcdINVQ7zjXVjnLxT3vymPzfoHM7/OWkDePO2TK OnAarXHVGhs/2Mmn2q+8zJPRtNxfVsk= X-Google-Smtp-Source: ABdhPJwhtVA4FzakzTtG1z4t4d0IXkRZtULQrLgHZDZuc6chlkuUImRb8HfqGApH1YEow3iOPCqu9A== X-Received: by 2002:a17:906:ae55:: with SMTP id lf21mr3366908ejb.101.1610128960085; Fri, 08 Jan 2021 10:02:40 -0800 (PST) Received: from localhost.localdomain (5-12-227-87.residential.rdsnet.ro. [5.12.227.87]) by smtp.gmail.com with ESMTPSA id b19sm4059713edx.47.2021.01.08.10.02.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 08 Jan 2021 10:02:39 -0800 (PST) From: Vladimir Oltean To: netdev@vger.kernel.org Cc: alexandre.belloni@bootlin.com, andrew@lunn.ch, f.fainelli@gmail.com, vivien.didelot@gmail.com, alexandru.marginean@nxp.com, claudiu.manoil@nxp.com, xiaoliang.yang_1@nxp.com, hongbo.wang@nxp.com, kuba@kernel.org, jiri@resnulli.us, idosch@idosch.org, UNGLinuxDriver@microchip.com Subject: [PATCH v3 net-next 07/10] net: mscc: ocelot: delete unused ocelot_set_cpu_port prototype Date: Fri, 8 Jan 2021 19:59:47 +0200 Message-Id: <20210108175950.484854-8-olteanv@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210108175950.484854-1-olteanv@gmail.com> References: <20210108175950.484854-1-olteanv@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org From: Vladimir Oltean This is a leftover of commit 69df578c5f4b ("net: mscc: ocelot: eliminate confusion between CPU and NPI port") which renamed that function. Signed-off-by: Vladimir Oltean Reviewed-by: Florian Fainelli --- Changes in v3: None. Changes in v2: None. drivers/net/ethernet/mscc/ocelot.h | 4 ---- 1 file changed, 4 deletions(-) diff --git a/drivers/net/ethernet/mscc/ocelot.h b/drivers/net/ethernet/mscc/ocelot.h index 291d39d49c4e..519335676c24 100644 --- a/drivers/net/ethernet/mscc/ocelot.h +++ b/drivers/net/ethernet/mscc/ocelot.h @@ -122,10 +122,6 @@ void ocelot_port_writel(struct ocelot_port *port, u32 val, u32 reg); int ocelot_probe_port(struct ocelot *ocelot, int port, struct regmap *target, struct phy_device *phy); -void ocelot_set_cpu_port(struct ocelot *ocelot, int cpu, - enum ocelot_tag_prefix injection, - enum ocelot_tag_prefix extraction); - extern struct notifier_block ocelot_netdevice_nb; extern struct notifier_block ocelot_switchdev_nb; extern struct notifier_block ocelot_switchdev_blocking_nb; From patchwork Fri Jan 8 17:59:48 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vladimir Oltean X-Patchwork-Id: 12007189 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=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 D9404C433E6 for ; Fri, 8 Jan 2021 18:04:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8C63023A68 for ; Fri, 8 Jan 2021 18:04:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728631AbhAHSDz (ORCPT ); Fri, 8 Jan 2021 13:03:55 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59958 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728595AbhAHSDy (ORCPT ); Fri, 8 Jan 2021 13:03:54 -0500 Received: from mail-ed1-x52c.google.com (mail-ed1-x52c.google.com [IPv6:2a00:1450:4864:20::52c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F029DC06129E for ; Fri, 8 Jan 2021 10:02:42 -0800 (PST) Received: by mail-ed1-x52c.google.com with SMTP id c7so12058474edv.6 for ; Fri, 08 Jan 2021 10:02:42 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=PVUZjFWOvTOjM3ZLU5zACmAZmC29U2Z8kaUUAtYK5do=; b=IkYcYzklN82dQD5cvG2Gdp5uttGnVBO0Dr8vHvT0Cfi4aAlavASP6l+MSMWDdPQqkY 50CG4gPx9vzW2iRE+3OySTSQI+CjfQ64eIFed2PaflktmMEfkgHaKbb3B704Leghrs09 ILNApkaSiM3hiSjAKuqf5CFcSh/wLPCvY/Lf2dAdf2MJh5JQwHTEPDdqr5K+I0seYRCr pfl3JGtpXtscvgsUGMbAUPhY2ECoEtGS/HZXpGRttO4Y9bLHt7t33VL+xDkzBgUO/IOw IRO5Th6p9L/wzJtYoUf9DikacTxAlavRPO17Pi//Qp0Yre0s7xdIsPJr/FczHwrcaQih Kj/Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=PVUZjFWOvTOjM3ZLU5zACmAZmC29U2Z8kaUUAtYK5do=; b=OKuo8gNTHg7IywCSydpKeDAMqlNei8+G4q894Cx8O/N8jO4FeuGF6ug5+A0F9Fo495 c7EPNOLupkLI7oVNOe/eZGuJkYCMCcGTpe+Gze1wyhOxLak1URNhL6GoN4JiGyMlUg+2 UevExX2y0OwRBG9Hd3QLhQgJw+xwEnPrxivCd2VezERK9CeXUBa28KQMyNhUVN2VCaQS 322k9BJdUo44eLGLaR9ELj/6DME5NV3EtYdaqvkmQLrTso0KtJIW2nXTv/OD+kfQ/7Gy ET7H68Gy8Vs7sjoEKlGYh5U1Nt+8HmHF5FBhrKFk6t0BeQMiVVyOk5nyl7CPNOvSKzaN fODw== X-Gm-Message-State: AOAM530ER90OwellW3glKqBdtoIqsMsMtQZ2IbhANb5CvQbt6ZN86GB5 cLSNXYLTk4yc9hROUEaqxVApwRd04k8= X-Google-Smtp-Source: ABdhPJxJ/5K+QXX95Fbf3GEtmvcCmKmccecimz7WF3hHtY6dLFmtskogSDzXkvV9ENIrLJoroeTXew== X-Received: by 2002:aa7:d916:: with SMTP id a22mr6101608edr.122.1610128961371; Fri, 08 Jan 2021 10:02:41 -0800 (PST) Received: from localhost.localdomain (5-12-227-87.residential.rdsnet.ro. [5.12.227.87]) by smtp.gmail.com with ESMTPSA id b19sm4059713edx.47.2021.01.08.10.02.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 08 Jan 2021 10:02:40 -0800 (PST) From: Vladimir Oltean To: netdev@vger.kernel.org Cc: alexandre.belloni@bootlin.com, andrew@lunn.ch, f.fainelli@gmail.com, vivien.didelot@gmail.com, alexandru.marginean@nxp.com, claudiu.manoil@nxp.com, xiaoliang.yang_1@nxp.com, hongbo.wang@nxp.com, kuba@kernel.org, jiri@resnulli.us, idosch@idosch.org, UNGLinuxDriver@microchip.com Subject: [PATCH v3 net-next 08/10] net: mscc: ocelot: register devlink ports Date: Fri, 8 Jan 2021 19:59:48 +0200 Message-Id: <20210108175950.484854-9-olteanv@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210108175950.484854-1-olteanv@gmail.com> References: <20210108175950.484854-1-olteanv@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org From: Vladimir Oltean Add devlink integration into the mscc_ocelot switchdev driver. Only the probed interfaces are registered with devlink, because for convenience, struct devlink_port was included into struct ocelot_port_private, which is only initialized for the ports that are used. Since we use devlink_port_type_eth_set to link the devlink port to the net_device, we can as well remove the .ndo_get_phys_port_name and .ndo_get_port_parent_id implementations, since devlink takes care of retrieving the port name and number automatically, once .ndo_get_devlink_port is implemented. Note that the felix DSA driver is already integrated with devlink by default, since that is a thing that the DSA core takes care of. This is the reason why these devlink stubs were put in ocelot_net.c and not in the common library. Signed-off-by: Vladimir Oltean Reviewed-by: Florian Fainelli --- Changes in v3: None. Changes in v2: Using devlink_port_type_eth_set as per Jiri's suggestion. drivers/net/ethernet/mscc/ocelot.h | 4 + drivers/net/ethernet/mscc/ocelot_net.c | 139 ++++++++++++++++----- drivers/net/ethernet/mscc/ocelot_vsc7514.c | 7 ++ include/soc/mscc/ocelot.h | 1 + 4 files changed, 123 insertions(+), 28 deletions(-) diff --git a/drivers/net/ethernet/mscc/ocelot.h b/drivers/net/ethernet/mscc/ocelot.h index 519335676c24..2e9a3c4697c8 100644 --- a/drivers/net/ethernet/mscc/ocelot.h +++ b/drivers/net/ethernet/mscc/ocelot.h @@ -57,6 +57,8 @@ struct ocelot_port_private { struct phy *serdes; struct ocelot_port_tc tc; + + struct devlink_port devlink_port; }; struct ocelot_dump_ctx { @@ -121,6 +123,8 @@ void ocelot_port_writel(struct ocelot_port *port, u32 val, u32 reg); int ocelot_probe_port(struct ocelot *ocelot, int port, struct regmap *target, struct phy_device *phy); +int ocelot_devlink_init(struct ocelot *ocelot); +void ocelot_devlink_teardown(struct ocelot *ocelot); extern struct notifier_block ocelot_netdevice_nb; extern struct notifier_block ocelot_switchdev_nb; diff --git a/drivers/net/ethernet/mscc/ocelot_net.c b/drivers/net/ethernet/mscc/ocelot_net.c index 2bd2840d88bd..d0d98c6adea8 100644 --- a/drivers/net/ethernet/mscc/ocelot_net.c +++ b/drivers/net/ethernet/mscc/ocelot_net.c @@ -8,6 +8,116 @@ #include "ocelot.h" #include "ocelot_vcap.h" +struct ocelot_devlink_private { + struct ocelot *ocelot; +}; + +static const struct devlink_ops ocelot_devlink_ops = { +}; + +static int ocelot_port_devlink_init(struct ocelot *ocelot, int port) +{ + struct ocelot_port *ocelot_port = ocelot->ports[port]; + int id_len = sizeof(ocelot->base_mac); + struct devlink *dl = ocelot->devlink; + struct devlink_port_attrs attrs = {}; + struct ocelot_port_private *priv; + struct devlink_port *dlp; + int err; + + if (!ocelot_port) + return 0; + + priv = container_of(ocelot_port, struct ocelot_port_private, port); + dlp = &priv->devlink_port; + + memcpy(attrs.switch_id.id, &ocelot->base_mac, id_len); + attrs.switch_id.id_len = id_len; + attrs.phys.port_number = port; + + if (priv->dev) + attrs.flavour = DEVLINK_PORT_FLAVOUR_PHYSICAL; + else + attrs.flavour = DEVLINK_PORT_FLAVOUR_UNUSED; + + devlink_port_attrs_set(dlp, &attrs); + + err = devlink_port_register(dl, dlp, port); + if (err) + return err; + + if (priv->dev) + devlink_port_type_eth_set(dlp, priv->dev); + + return 0; +} + +static void ocelot_port_devlink_teardown(struct ocelot *ocelot, int port) +{ + struct ocelot_port *ocelot_port = ocelot->ports[port]; + struct ocelot_port_private *priv; + struct devlink_port *dlp; + + if (!ocelot_port) + return; + + priv = container_of(ocelot_port, struct ocelot_port_private, port); + dlp = &priv->devlink_port; + + devlink_port_unregister(dlp); +} + +int ocelot_devlink_init(struct ocelot *ocelot) +{ + struct ocelot_devlink_private *dl_priv; + int port, err; + + ocelot->devlink = devlink_alloc(&ocelot_devlink_ops, sizeof(*dl_priv)); + if (!ocelot->devlink) + return -ENOMEM; + dl_priv = devlink_priv(ocelot->devlink); + dl_priv->ocelot = ocelot; + + err = devlink_register(ocelot->devlink, ocelot->dev); + if (err) + goto free_devlink; + + for (port = 0; port < ocelot->num_phys_ports; port++) { + err = ocelot_port_devlink_init(ocelot, port); + if (err) { + while (port-- > 0) + ocelot_port_devlink_teardown(ocelot, port); + goto unregister_devlink; + } + } + + return 0; + +unregister_devlink: + devlink_unregister(ocelot->devlink); +free_devlink: + devlink_free(ocelot->devlink); + return err; +} + +void ocelot_devlink_teardown(struct ocelot *ocelot) +{ + int port; + + for (port = 0; port < ocelot->num_phys_ports; port++) + ocelot_port_devlink_teardown(ocelot, port); + + devlink_unregister(ocelot->devlink); + devlink_free(ocelot->devlink); +} + +static struct devlink_port *ocelot_get_devlink_port(struct net_device *dev) +{ + struct ocelot_port_private *priv = netdev_priv(dev); + + return &priv->devlink_port; +} + int ocelot_setup_tc_cls_flower(struct ocelot_port_private *priv, struct flow_cls_offload *f, bool ingress) @@ -525,20 +635,6 @@ static void ocelot_set_rx_mode(struct net_device *dev) __dev_mc_sync(dev, ocelot_mc_sync, ocelot_mc_unsync); } -static int ocelot_port_get_phys_port_name(struct net_device *dev, - char *buf, size_t len) -{ - struct ocelot_port_private *priv = netdev_priv(dev); - int port = priv->chip_port; - int ret; - - ret = snprintf(buf, len, "p%d", port); - if (ret >= len) - return -EINVAL; - - return 0; -} - static int ocelot_port_set_mac_address(struct net_device *dev, void *p) { struct ocelot_port_private *priv = netdev_priv(dev); @@ -689,18 +785,6 @@ static int ocelot_set_features(struct net_device *dev, return 0; } -static int ocelot_get_port_parent_id(struct net_device *dev, - struct netdev_phys_item_id *ppid) -{ - struct ocelot_port_private *priv = netdev_priv(dev); - struct ocelot *ocelot = priv->port.ocelot; - - ppid->id_len = sizeof(ocelot->base_mac); - memcpy(&ppid->id, &ocelot->base_mac, ppid->id_len); - - return 0; -} - static int ocelot_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) { struct ocelot_port_private *priv = netdev_priv(dev); @@ -727,7 +811,6 @@ static const struct net_device_ops ocelot_port_netdev_ops = { .ndo_stop = ocelot_port_stop, .ndo_start_xmit = ocelot_port_xmit, .ndo_set_rx_mode = ocelot_set_rx_mode, - .ndo_get_phys_port_name = ocelot_port_get_phys_port_name, .ndo_set_mac_address = ocelot_port_set_mac_address, .ndo_get_stats64 = ocelot_get_stats64, .ndo_fdb_add = ocelot_port_fdb_add, @@ -736,9 +819,9 @@ static const struct net_device_ops ocelot_port_netdev_ops = { .ndo_vlan_rx_add_vid = ocelot_vlan_rx_add_vid, .ndo_vlan_rx_kill_vid = ocelot_vlan_rx_kill_vid, .ndo_set_features = ocelot_set_features, - .ndo_get_port_parent_id = ocelot_get_port_parent_id, .ndo_setup_tc = ocelot_setup_tc, .ndo_do_ioctl = ocelot_ioctl, + .ndo_get_devlink_port = ocelot_get_devlink_port, }; struct net_device *ocelot_port_to_netdev(struct ocelot *ocelot, int port) diff --git a/drivers/net/ethernet/mscc/ocelot_vsc7514.c b/drivers/net/ethernet/mscc/ocelot_vsc7514.c index ecd474476cc6..80fdf971d573 100644 --- a/drivers/net/ethernet/mscc/ocelot_vsc7514.c +++ b/drivers/net/ethernet/mscc/ocelot_vsc7514.c @@ -1293,6 +1293,12 @@ static int mscc_ocelot_probe(struct platform_device *pdev) } } + err = ocelot_devlink_init(ocelot); + if (err) { + mscc_ocelot_release_ports(ocelot); + goto out_ocelot_deinit; + } + register_netdevice_notifier(&ocelot_netdevice_nb); register_switchdev_notifier(&ocelot_switchdev_nb); register_switchdev_blocking_notifier(&ocelot_switchdev_blocking_nb); @@ -1314,6 +1320,7 @@ static int mscc_ocelot_remove(struct platform_device *pdev) { struct ocelot *ocelot = platform_get_drvdata(pdev); + ocelot_devlink_teardown(ocelot); ocelot_deinit_timestamp(ocelot); mscc_ocelot_release_ports(ocelot); ocelot_deinit(ocelot); diff --git a/include/soc/mscc/ocelot.h b/include/soc/mscc/ocelot.h index 9a46787c679b..75cd457b99b9 100644 --- a/include/soc/mscc/ocelot.h +++ b/include/soc/mscc/ocelot.h @@ -602,6 +602,7 @@ struct ocelot_port { struct ocelot { struct device *dev; + struct devlink *devlink; const struct ocelot_ops *ops; struct regmap *targets[TARGET_MAX]; From patchwork Fri Jan 8 17:59:49 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vladimir Oltean X-Patchwork-Id: 12007185 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=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 2C7DDC433E6 for ; Fri, 8 Jan 2021 18:03:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E254223A68 for ; Fri, 8 Jan 2021 18:03:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728661AbhAHSD5 (ORCPT ); Fri, 8 Jan 2021 13:03:57 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59960 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727885AbhAHSDz (ORCPT ); Fri, 8 Jan 2021 13:03:55 -0500 Received: from mail-ej1-x631.google.com (mail-ej1-x631.google.com [IPv6:2a00:1450:4864:20::631]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id ACDCDC06129F for ; Fri, 8 Jan 2021 10:02:44 -0800 (PST) Received: by mail-ej1-x631.google.com with SMTP id n26so15665035eju.6 for ; Fri, 08 Jan 2021 10:02:44 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=evjj7RIpk1+dcqT2g+33cWjQdb/mtjyI36++VMXDIeM=; b=Y5OjdG5WzlxyhOQo25z+5p+Tf3FtUz0Dlh0R72OYV7eQIpVCG0QG5Mp6i3Jeeczv0F f9/f0nqSPIMPbW8KHwvqxhE0qXV8aAxWVEKXZQPMh3uDjR2KCqNxMyt7QSN56YZkCdGC gNQVdNKmxNdpOWDs2r3SqrLD2clCIRGgQkxUS7mk/j+FjsRglpfEKc40NnV70Pd8PmKC l78J2JFaX7BgcmiLemGRsZJyRU/ArnbgO2XDs7Yk2ky4Hj4wPAYt+wfEuVLpy/bWw4Mv O9iRQzVBohXMhw7bOMWYJHx85V27O0PWbjtwuDpEHnmOFNHufR4FsHUt2+5ws1bGheyq 4T0A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=evjj7RIpk1+dcqT2g+33cWjQdb/mtjyI36++VMXDIeM=; b=Lwdhrs2aQrbTaplsdOqupFXm2QS9oTQViS66aYRKzGc01PZz7zSkSIFYCDlOM0bQtX QVCqwi7rOZr/B9EGwM6d5+TH7WVvOfQB1H3OqU0dQsPUEtZS2SOwHsF9KSaG5ReK9Cgx z7WACdnltKCpv5bL7YGLlJZxMMtJBSnXrSgWzzdp7stuz1MDsoafi7StewzbZAa/+osd 4iZehjd454SLza2vcSumYfaCN4n1aWcjpKkyGHLYDX0LiGtfIm7EmsuiKRhQFARHTPxV E9k1TPzaRpHpM6OPFImNxs8tTBDOTA4wbepp0Cg6LBX+Hh37kkQx6SV7Yu2C4+rZ0wW/ Uaaw== X-Gm-Message-State: AOAM5314A/uul1XUss+/2XDALCTXFlXXksuNX++6MKbl+qVSI4hVWJcx lFxbNvP+sSJA0hCqwcVk76XzInCqV1o= X-Google-Smtp-Source: ABdhPJxC+VD299Z+gS0d8Jd6f5ueT3bBfllXOvDqiCw4BD3/qf39ofwVfvWVh2fKPjC/EfxQ51yeNg== X-Received: by 2002:a17:906:34ca:: with SMTP id h10mr3446415ejb.417.1610128962762; Fri, 08 Jan 2021 10:02:42 -0800 (PST) Received: from localhost.localdomain (5-12-227-87.residential.rdsnet.ro. [5.12.227.87]) by smtp.gmail.com with ESMTPSA id b19sm4059713edx.47.2021.01.08.10.02.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 08 Jan 2021 10:02:42 -0800 (PST) From: Vladimir Oltean To: netdev@vger.kernel.org Cc: alexandre.belloni@bootlin.com, andrew@lunn.ch, f.fainelli@gmail.com, vivien.didelot@gmail.com, alexandru.marginean@nxp.com, claudiu.manoil@nxp.com, xiaoliang.yang_1@nxp.com, hongbo.wang@nxp.com, kuba@kernel.org, jiri@resnulli.us, idosch@idosch.org, UNGLinuxDriver@microchip.com Subject: [PATCH v3 net-next 09/10] net: mscc: ocelot: initialize watermarks to sane defaults Date: Fri, 8 Jan 2021 19:59:49 +0200 Message-Id: <20210108175950.484854-10-olteanv@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210108175950.484854-1-olteanv@gmail.com> References: <20210108175950.484854-1-olteanv@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org From: Vladimir Oltean This is meant to be a gentle introduction into the world of watermarks on ocelot. The code is placed in ocelot_devlink.c because it will be integrated with devlink, even if it isn't right now. My first step was intended to be to replicate the default configuration of the congestion watermarks programatically, since they are now going to be tuned by the user. But after studying and understanding through trial and error how they work, I now believe that the configuration used out of reset does not do justice to the word "reservation", since the sum of all reservations exceeds the total amount of resources (otherwise said, all reservations cannot be fulfilled at the same time, which means that, contrary to the reference manual, they don't guarantee anything). As an example, here's a dump of the reservation watermarks for frame buffers, for port 0 (for brevity, the ports 1-6 were omitted, but they have the same configuration): BUF_Q_RSRV_I(port 0, prio 0) = max 3000 bytes BUF_Q_RSRV_I(port 0, prio 1) = max 3000 bytes BUF_Q_RSRV_I(port 0, prio 2) = max 3000 bytes BUF_Q_RSRV_I(port 0, prio 3) = max 3000 bytes BUF_Q_RSRV_I(port 0, prio 4) = max 3000 bytes BUF_Q_RSRV_I(port 0, prio 5) = max 3000 bytes BUF_Q_RSRV_I(port 0, prio 6) = max 3000 bytes BUF_Q_RSRV_I(port 0, prio 7) = max 3000 bytes Otherwise said, every port-tc has an ingress reservation of 3000 bytes, and there are 7 ports in VSC9959 Felix (6 user ports and 1 CPU port). Concentrating only on the ingress reservations, there are, in total, 8 [traffic classes] x 7 [ports] x 3000 [bytes] = 168,000 bytes of memory reserved on ingress. But, surprise, Felix only has 128 KB of packet buffer in total... A similar thing happens with Seville, which has a larger packet buffer, but also more ports, and the default configuration is also overcommitted. This patch disables the (apparently) bogus reservations and moves all resources to the shared area. This way, real reservations can be set up by the user, using devlink-sb. Signed-off-by: Vladimir Oltean Reviewed-by: Florian Fainelli --- Changes in v3: None. Changes in v2: None. drivers/net/ethernet/mscc/Makefile | 3 +- drivers/net/ethernet/mscc/ocelot.c | 1 + drivers/net/ethernet/mscc/ocelot.h | 1 + drivers/net/ethernet/mscc/ocelot_devlink.c | 442 +++++++++++++++++++++ 4 files changed, 446 insertions(+), 1 deletion(-) create mode 100644 drivers/net/ethernet/mscc/ocelot_devlink.c diff --git a/drivers/net/ethernet/mscc/Makefile b/drivers/net/ethernet/mscc/Makefile index 58f94c3d80f9..346bba2730ad 100644 --- a/drivers/net/ethernet/mscc/Makefile +++ b/drivers/net/ethernet/mscc/Makefile @@ -6,7 +6,8 @@ mscc_ocelot_switch_lib-y := \ ocelot_police.o \ ocelot_vcap.o \ ocelot_flower.o \ - ocelot_ptp.o + ocelot_ptp.o \ + ocelot_devlink.o obj-$(CONFIG_MSCC_OCELOT_SWITCH) += mscc_ocelot.o mscc_ocelot-y := \ ocelot_vsc7514.o \ diff --git a/drivers/net/ethernet/mscc/ocelot.c b/drivers/net/ethernet/mscc/ocelot.c index 876c03e51bdc..f547728c6718 100644 --- a/drivers/net/ethernet/mscc/ocelot.c +++ b/drivers/net/ethernet/mscc/ocelot.c @@ -1636,6 +1636,7 @@ int ocelot_init(struct ocelot *ocelot) INIT_DELAYED_WORK(&ocelot->stats_work, ocelot_check_stats_work); queue_delayed_work(ocelot->stats_queue, &ocelot->stats_work, OCELOT_STATS_CHECK_DELAY); + ocelot_watermark_init(ocelot); return 0; } diff --git a/drivers/net/ethernet/mscc/ocelot.h b/drivers/net/ethernet/mscc/ocelot.h index 2e9a3c4697c8..a9d60ef30344 100644 --- a/drivers/net/ethernet/mscc/ocelot.h +++ b/drivers/net/ethernet/mscc/ocelot.h @@ -125,6 +125,7 @@ int ocelot_probe_port(struct ocelot *ocelot, int port, struct regmap *target, struct phy_device *phy); int ocelot_devlink_init(struct ocelot *ocelot); void ocelot_devlink_teardown(struct ocelot *ocelot); +void ocelot_watermark_init(struct ocelot *ocelot); extern struct notifier_block ocelot_netdevice_nb; extern struct notifier_block ocelot_switchdev_nb; diff --git a/drivers/net/ethernet/mscc/ocelot_devlink.c b/drivers/net/ethernet/mscc/ocelot_devlink.c new file mode 100644 index 000000000000..c96309cde82d --- /dev/null +++ b/drivers/net/ethernet/mscc/ocelot_devlink.c @@ -0,0 +1,442 @@ +// SPDX-License-Identifier: (GPL-2.0 OR MIT) +/* Copyright 2020 NXP Semiconductors + */ +#include +#include "ocelot.h" + +/* The queue system tracks four resource consumptions: + * Resource 0: Memory tracked per source port + * Resource 1: Frame references tracked per source port + * Resource 2: Memory tracked per destination port + * Resource 3: Frame references tracked per destination port + */ +#define OCELOT_RESOURCE_SZ 256 +#define OCELOT_NUM_RESOURCES 4 + +#define BUF_xxxx_I (0 * OCELOT_RESOURCE_SZ) +#define REF_xxxx_I (1 * OCELOT_RESOURCE_SZ) +#define BUF_xxxx_E (2 * OCELOT_RESOURCE_SZ) +#define REF_xxxx_E (3 * OCELOT_RESOURCE_SZ) + +/* For each resource type there are 4 types of watermarks: + * Q_RSRV: reservation per QoS class per port + * PRIO_SHR: sharing watermark per QoS class across all ports + * P_RSRV: reservation per port + * COL_SHR: sharing watermark per color (drop precedence) across all ports + */ +#define xxx_Q_RSRV_x 0 +#define xxx_PRIO_SHR_x 216 +#define xxx_P_RSRV_x 224 +#define xxx_COL_SHR_x 254 + +/* Reservation Watermarks + * ---------------------- + * + * For setting up the reserved areas, egress watermarks exist per port and per + * QoS class for both ingress and egress. + */ + +/* Amount of packet buffer + * | per QoS class + * | | reserved + * | | | per egress port + * | | | | + * V V v v + * BUF_Q_RSRV_E + */ +#define BUF_Q_RSRV_E(port, prio) \ + (BUF_xxxx_E + xxx_Q_RSRV_x + OCELOT_NUM_TC * (port) + (prio)) + +/* Amount of packet buffer + * | for all port's traffic classes + * | | reserved + * | | | per egress port + * | | | | + * V V v v + * BUF_P_RSRV_E + */ +#define BUF_P_RSRV_E(port) \ + (BUF_xxxx_E + xxx_P_RSRV_x + (port)) + +/* Amount of packet buffer + * | per QoS class + * | | reserved + * | | | per ingress port + * | | | | + * V V v v + * BUF_Q_RSRV_I + */ +#define BUF_Q_RSRV_I(port, prio) \ + (BUF_xxxx_I + xxx_Q_RSRV_x + OCELOT_NUM_TC * (port) + (prio)) + +/* Amount of packet buffer + * | for all port's traffic classes + * | | reserved + * | | | per ingress port + * | | | | + * V V v v + * BUF_P_RSRV_I + */ +#define BUF_P_RSRV_I(port) \ + (BUF_xxxx_I + xxx_P_RSRV_x + (port)) + +/* Amount of frame references + * | per QoS class + * | | reserved + * | | | per egress port + * | | | | + * V V v v + * REF_Q_RSRV_E + */ +#define REF_Q_RSRV_E(port, prio) \ + (REF_xxxx_E + xxx_Q_RSRV_x + OCELOT_NUM_TC * (port) + (prio)) + +/* Amount of frame references + * | for all port's traffic classes + * | | reserved + * | | | per egress port + * | | | | + * V V v v + * REF_P_RSRV_E + */ +#define REF_P_RSRV_E(port) \ + (REF_xxxx_E + xxx_P_RSRV_x + (port)) + +/* Amount of frame references + * | per QoS class + * | | reserved + * | | | per ingress port + * | | | | + * V V v v + * REF_Q_RSRV_I + */ +#define REF_Q_RSRV_I(port, prio) \ + (REF_xxxx_I + xxx_Q_RSRV_x + OCELOT_NUM_TC * (port) + (prio)) + +/* Amount of frame references + * | for all port's traffic classes + * | | reserved + * | | | per ingress port + * | | | | + * V V v v + * REF_P_RSRV_I + */ +#define REF_P_RSRV_I(port) \ + (REF_xxxx_I + xxx_P_RSRV_x + (port)) + +/* Sharing Watermarks + * ------------------ + * + * The shared memory area is shared between all ports. + */ + +/* Amount of buffer + * | per QoS class + * | | from the shared memory area + * | | | for egress traffic + * | | | | + * V V v v + * BUF_PRIO_SHR_E + */ +#define BUF_PRIO_SHR_E(prio) \ + (BUF_xxxx_E + xxx_PRIO_SHR_x + (prio)) + +/* Amount of buffer + * | per color (drop precedence level) + * | | from the shared memory area + * | | | for egress traffic + * | | | | + * V V v v + * BUF_COL_SHR_E + */ +#define BUF_COL_SHR_E(dp) \ + (BUF_xxxx_E + xxx_COL_SHR_x + (1 - (dp))) + +/* Amount of buffer + * | per QoS class + * | | from the shared memory area + * | | | for ingress traffic + * | | | | + * V V v v + * BUF_PRIO_SHR_I + */ +#define BUF_PRIO_SHR_I(prio) \ + (BUF_xxxx_I + xxx_PRIO_SHR_x + (prio)) + +/* Amount of buffer + * | per color (drop precedence level) + * | | from the shared memory area + * | | | for ingress traffic + * | | | | + * V V v v + * BUF_COL_SHR_I + */ +#define BUF_COL_SHR_I(dp) \ + (BUF_xxxx_I + xxx_COL_SHR_x + (1 - (dp))) + +/* Amount of frame references + * | per QoS class + * | | from the shared area + * | | | for egress traffic + * | | | | + * V V v v + * REF_PRIO_SHR_E + */ +#define REF_PRIO_SHR_E(prio) \ + (REF_xxxx_E + xxx_PRIO_SHR_x + (prio)) + +/* Amount of frame references + * | per color (drop precedence level) + * | | from the shared area + * | | | for egress traffic + * | | | | + * V V v v + * REF_COL_SHR_E + */ +#define REF_COL_SHR_E(dp) \ + (REF_xxxx_E + xxx_COL_SHR_x + (1 - (dp))) + +/* Amount of frame references + * | per QoS class + * | | from the shared area + * | | | for ingress traffic + * | | | | + * V V v v + * REF_PRIO_SHR_I + */ +#define REF_PRIO_SHR_I(prio) \ + (REF_xxxx_I + xxx_PRIO_SHR_x + (prio)) + +/* Amount of frame references + * | per color (drop precedence level) + * | | from the shared area + * | | | for ingress traffic + * | | | | + * V V v v + * REF_COL_SHR_I + */ +#define REF_COL_SHR_I(dp) \ + (REF_xxxx_I + xxx_COL_SHR_x + (1 - (dp))) + +static u32 ocelot_wm_read(struct ocelot *ocelot, int index) +{ + int wm = ocelot_read_gix(ocelot, QSYS_RES_CFG, index); + + return ocelot->ops->wm_dec(wm); +} + +static void ocelot_wm_write(struct ocelot *ocelot, int index, u32 val) +{ + u32 wm = ocelot->ops->wm_enc(val); + + ocelot_write_gix(ocelot, wm, QSYS_RES_CFG, index); +} + +/* The hardware comes out of reset with strange defaults: the sum of all + * reservations for frame memory is larger than the total buffer size. + * One has to wonder how can the reservation watermarks still guarantee + * anything under congestion. + * Bring some sense into the hardware by changing the defaults to disable all + * reservations and rely only on the sharing watermark for frames with drop + * precedence 0. The user can still explicitly request reservations per port + * and per port-tc through devlink-sb. + */ +static void ocelot_disable_reservation_watermarks(struct ocelot *ocelot, + int port) +{ + int prio; + + for (prio = 0; prio < OCELOT_NUM_TC; prio++) { + ocelot_wm_write(ocelot, BUF_Q_RSRV_I(port, prio), 0); + ocelot_wm_write(ocelot, BUF_Q_RSRV_E(port, prio), 0); + ocelot_wm_write(ocelot, REF_Q_RSRV_I(port, prio), 0); + ocelot_wm_write(ocelot, REF_Q_RSRV_E(port, prio), 0); + } + + ocelot_wm_write(ocelot, BUF_P_RSRV_I(port), 0); + ocelot_wm_write(ocelot, BUF_P_RSRV_E(port), 0); + ocelot_wm_write(ocelot, REF_P_RSRV_I(port), 0); + ocelot_wm_write(ocelot, REF_P_RSRV_E(port), 0); +} + +/* We want the sharing watermarks to consume all nonreserved resources, for + * efficient resource utilization (a single traffic flow should be able to use + * up the entire buffer space and frame resources as long as there's no + * interference). + * The switch has 10 sharing watermarks per lookup: 8 per traffic class and 2 + * per color (drop precedence). + * The trouble with configuring these sharing watermarks is that: + * (1) There's a risk that we overcommit the resources if we configure + * (a) all 8 per-TC sharing watermarks to the max + * (b) all 2 per-color sharing watermarks to the max + * (2) There's a risk that we undercommit the resources if we configure + * (a) all 8 per-TC sharing watermarks to "max / 8" + * (b) all 2 per-color sharing watermarks to "max / 2" + * So for Linux, let's just disable the sharing watermarks per traffic class + * (setting them to 0 will make them always exceeded), and rely only on the + * sharing watermark for drop priority 0. So frames with drop priority set to 1 + * by QoS classification or policing will still be allowed, but only as long as + * the port and port-TC reservations are not exceeded. + */ +static void ocelot_disable_tc_sharing_watermarks(struct ocelot *ocelot) +{ + int prio; + + for (prio = 0; prio < OCELOT_NUM_TC; prio++) { + ocelot_wm_write(ocelot, BUF_PRIO_SHR_I(prio), 0); + ocelot_wm_write(ocelot, BUF_PRIO_SHR_E(prio), 0); + ocelot_wm_write(ocelot, REF_PRIO_SHR_I(prio), 0); + ocelot_wm_write(ocelot, REF_PRIO_SHR_E(prio), 0); + } +} + +static void ocelot_get_buf_rsrv(struct ocelot *ocelot, u32 *buf_rsrv_i, + u32 *buf_rsrv_e) +{ + int port, prio; + + *buf_rsrv_i = 0; + *buf_rsrv_e = 0; + + for (port = 0; port <= ocelot->num_phys_ports; port++) { + for (prio = 0; prio < OCELOT_NUM_TC; prio++) { + *buf_rsrv_i += ocelot_wm_read(ocelot, + BUF_Q_RSRV_I(port, prio)); + *buf_rsrv_e += ocelot_wm_read(ocelot, + BUF_Q_RSRV_E(port, prio)); + } + + *buf_rsrv_i += ocelot_wm_read(ocelot, BUF_P_RSRV_I(port)); + *buf_rsrv_e += ocelot_wm_read(ocelot, BUF_P_RSRV_E(port)); + } + + *buf_rsrv_i *= OCELOT_BUFFER_CELL_SZ; + *buf_rsrv_e *= OCELOT_BUFFER_CELL_SZ; +} + +static void ocelot_get_ref_rsrv(struct ocelot *ocelot, u32 *ref_rsrv_i, + u32 *ref_rsrv_e) +{ + int port, prio; + + *ref_rsrv_i = 0; + *ref_rsrv_e = 0; + + for (port = 0; port <= ocelot->num_phys_ports; port++) { + for (prio = 0; prio < OCELOT_NUM_TC; prio++) { + *ref_rsrv_i += ocelot_wm_read(ocelot, + REF_Q_RSRV_I(port, prio)); + *ref_rsrv_e += ocelot_wm_read(ocelot, + REF_Q_RSRV_E(port, prio)); + } + + *ref_rsrv_i += ocelot_wm_read(ocelot, REF_P_RSRV_I(port)); + *ref_rsrv_e += ocelot_wm_read(ocelot, REF_P_RSRV_E(port)); + } +} + +/* Calculate all reservations, then set up the sharing watermark for DP=0 to + * consume the remaining resources up to the pool's configured size. + */ +static void ocelot_setup_sharing_watermarks(struct ocelot *ocelot) +{ + u32 buf_rsrv_i, buf_rsrv_e; + u32 ref_rsrv_i, ref_rsrv_e; + u32 buf_shr_i, buf_shr_e; + u32 ref_shr_i, ref_shr_e; + + ocelot_get_buf_rsrv(ocelot, &buf_rsrv_i, &buf_rsrv_e); + ocelot_get_ref_rsrv(ocelot, &ref_rsrv_i, &ref_rsrv_e); + + buf_shr_i = ocelot->packet_buffer_size - buf_rsrv_i; + buf_shr_e = ocelot->packet_buffer_size - buf_rsrv_e; + ref_shr_i = ocelot->num_frame_refs - ref_rsrv_i; + ref_shr_e = ocelot->num_frame_refs - ref_rsrv_e; + + buf_shr_i /= OCELOT_BUFFER_CELL_SZ; + buf_shr_e /= OCELOT_BUFFER_CELL_SZ; + + ocelot_wm_write(ocelot, BUF_COL_SHR_I(0), buf_shr_i); + ocelot_wm_write(ocelot, BUF_COL_SHR_E(0), buf_shr_e); + ocelot_wm_write(ocelot, REF_COL_SHR_E(0), ref_shr_e); + ocelot_wm_write(ocelot, REF_COL_SHR_I(0), ref_shr_i); + ocelot_wm_write(ocelot, BUF_COL_SHR_I(1), 0); + ocelot_wm_write(ocelot, BUF_COL_SHR_E(1), 0); + ocelot_wm_write(ocelot, REF_COL_SHR_E(1), 0); + ocelot_wm_write(ocelot, REF_COL_SHR_I(1), 0); +} + +/* The hardware works like this: + * + * Frame forwarding decision taken + * | + * v + * +--------------------+--------------------+--------------------+ + * | | | | + * v v v v + * Ingress memory Egress memory Ingress frame Egress frame + * check check reference check reference check + * | | | | + * v v v v + * BUF_Q_RSRV_I ok BUF_Q_RSRV_E ok REF_Q_RSRV_I ok REF_Q_RSRV_E ok + *(src port, prio) -+ (dst port, prio) -+ (src port, prio) -+ (dst port, prio) -+ + * | | | | | | | | + * |exceeded | |exceeded | |exceeded | |exceeded | + * v | v | v | v | + * BUF_P_RSRV_I ok| BUF_P_RSRV_E ok| REF_P_RSRV_I ok| REF_P_RSRV_E ok| + * (src port) ----+ (dst port) ----+ (src port) ----+ (dst port) -----+ + * | | | | | | | | + * |exceeded | |exceeded | |exceeded | |exceeded | + * v | v | v | v | + * BUF_PRIO_SHR_I ok| BUF_PRIO_SHR_E ok| REF_PRIO_SHR_I ok| REF_PRIO_SHR_E ok| + * (prio) ------+ (prio) ------+ (prio) ------+ (prio) -------+ + * | | | | | | | | + * |exceeded | |exceeded | |exceeded | |exceeded | + * v | v | v | v | + * BUF_COL_SHR_I ok| BUF_COL_SHR_E ok| REF_COL_SHR_I ok| REF_COL_SHR_E ok| + * (dp) -------+ (dp) -------+ (dp) -------+ (dp) --------+ + * | | | | | | | | + * |exceeded | |exceeded | |exceeded | |exceeded | + * v v v v v v v v + * fail success fail success fail success fail success + * | | | | | | | | + * v v v v v v v v + * +-----+----+ +-----+----+ +-----+----+ +-----+-----+ + * | | | | + * +-------> OR <-------+ +-------> OR <-------+ + * | | + * v v + * +----------------> AND <-----------------+ + * | + * v + * FIFO drop / accept + * + * We are modeling each of the 4 parallel lookups as a devlink-sb pool. + * At least one (ingress or egress) memory pool and one (ingress or egress) + * frame reference pool need to have resources for frame acceptance to succeed. + * + * The following watermarks are controlled explicitly through devlink-sb: + * BUF_Q_RSRV_I, BUF_Q_RSRV_E, REF_Q_RSRV_I, REF_Q_RSRV_E + * BUF_P_RSRV_I, BUF_P_RSRV_E, REF_P_RSRV_I, REF_P_RSRV_E + * The following watermarks are controlled implicitly through devlink-sb: + * BUF_COL_SHR_I, BUF_COL_SHR_E, REF_COL_SHR_I, REF_COL_SHR_E + * The following watermarks are unused and disabled: + * BUF_PRIO_SHR_I, BUF_PRIO_SHR_E, REF_PRIO_SHR_I, REF_PRIO_SHR_E + * + * This function overrides the hardware defaults with more sane ones (no + * reservations by default, let sharing use all resources) and disables the + * unused watermarks. + */ +void ocelot_watermark_init(struct ocelot *ocelot) +{ + int all_tcs = GENMASK(OCELOT_NUM_TC - 1, 0); + int port; + + ocelot_write(ocelot, all_tcs, QSYS_RES_QOS_MODE); + + for (port = 0; port <= ocelot->num_phys_ports; port++) + ocelot_disable_reservation_watermarks(ocelot, port); + + ocelot_disable_tc_sharing_watermarks(ocelot); + ocelot_setup_sharing_watermarks(ocelot); +} From patchwork Fri Jan 8 17:59:50 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vladimir Oltean X-Patchwork-Id: 12007187 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=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 0D469C433DB for ; Fri, 8 Jan 2021 18:03:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AB87423A63 for ; Fri, 8 Jan 2021 18:03:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728655AbhAHSD5 (ORCPT ); Fri, 8 Jan 2021 13:03:57 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59962 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728634AbhAHSDz (ORCPT ); Fri, 8 Jan 2021 13:03:55 -0500 Received: from mail-ej1-x62e.google.com (mail-ej1-x62e.google.com [IPv6:2a00:1450:4864:20::62e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 67175C0612A3 for ; Fri, 8 Jan 2021 10:02:46 -0800 (PST) Received: by mail-ej1-x62e.google.com with SMTP id ce23so15652702ejb.8 for ; Fri, 08 Jan 2021 10:02:46 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=4j+hhq2DkvEpvMHcfevEqaRPk34ivT94i3R2U1sj90c=; b=oY6E5d/yK1lgua17Bi9r2il3w4CzGIXdxxXcWPJGflQFP84KGEFg0ffKEwK64MrR47 DB19GGQVj0KdkvYkSQ05Awl1EeZ6U8Bf+/Jezz41Ul6PXj/k8iY6zI5lYND7Vp73HOb3 uvw6oDvm71GrNUPPbMtYD+AQIWpINU8APZL7/UdBvKczXwDSnp17vAshcfDLHkiZlT6K 8V+yBxz21+FxpI9cNppfemPbEPjtRthL/Rig/kzjSKZbikjAEcnLdHb3a4ING4Gs+KK4 7HozH9CYVubqhFkp8tgN4/WkQDbVo/PluoEi3JONRZxOWroCAnncwP7+yVh4V2EIsPcT CK+w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=4j+hhq2DkvEpvMHcfevEqaRPk34ivT94i3R2U1sj90c=; b=lgdfLsev2WlB9g6gPB7xI80TQoyShagI8+1wuf/doxAmViUjQt3I5VKs5z6QtR3SKg zkDkDNv90bbIrh6Kwv/VWBjzYZ4DtgcNAaM9Ui/D44gA816CWFkB4roYTNA2kAW4H20i ZA8K1PHgYGgN6re/r+i7x83bLD+GmdAEYH9lxdqefYc1mD50LBB7ELyp3pSp12ZWM+4G xtPU3lCAQfxcLhFO223rM2/xYnJq1gDS1D4/GypLKHUEl1FKbdUrWTjOfZxhNO9bgNW5 9s/AsehVBDsxsMn8rP38OOR93pYejWlqGokNAwyzp2jsQbXc6MBkMHLRrF7hWV0Ymdar i6hQ== X-Gm-Message-State: AOAM533Eukq+3u8AwEz2V+Yfp/vLuL9bevCpjEJD1pchWtZReB70getY 0be14PB8bTQ4Prrceg8ZSM7D6CFlu40= X-Google-Smtp-Source: ABdhPJxhPhh0tSISJiQ3qIUgS2cjThNFuKO6B858VfMO4+nbpIPM7peiCpH49RajlWweWGnVO+HVaA== X-Received: by 2002:a17:906:4c55:: with SMTP id d21mr3440957ejw.116.1610128964351; Fri, 08 Jan 2021 10:02:44 -0800 (PST) Received: from localhost.localdomain (5-12-227-87.residential.rdsnet.ro. [5.12.227.87]) by smtp.gmail.com with ESMTPSA id b19sm4059713edx.47.2021.01.08.10.02.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 08 Jan 2021 10:02:43 -0800 (PST) From: Vladimir Oltean To: netdev@vger.kernel.org Cc: alexandre.belloni@bootlin.com, andrew@lunn.ch, f.fainelli@gmail.com, vivien.didelot@gmail.com, alexandru.marginean@nxp.com, claudiu.manoil@nxp.com, xiaoliang.yang_1@nxp.com, hongbo.wang@nxp.com, kuba@kernel.org, jiri@resnulli.us, idosch@idosch.org, UNGLinuxDriver@microchip.com Subject: [PATCH v3 net-next 10/10] net: mscc: ocelot: configure watermarks using devlink-sb Date: Fri, 8 Jan 2021 19:59:50 +0200 Message-Id: <20210108175950.484854-11-olteanv@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210108175950.484854-1-olteanv@gmail.com> References: <20210108175950.484854-1-olteanv@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org From: Vladimir Oltean Using devlink-sb, we can configure 12/16 (the important 75%) of the switch's controlling watermarks for congestion drops, and we can monitor 50% of the watermark occupancies (we can monitor the reservation watermarks, but not the sharing watermarks, which are exposed as pool sizes). The following definitions can be made: SB_BUF=0 # The devlink-sb for frame buffers SB_REF=1 # The devlink-sb for frame references POOL_ING=0 # The pool for ingress traffic. Both devlink-sb instances # have one of these. POOL_EGR=1 # The pool for egress traffic. Both devlink-sb instances # have one of these. Editing the hardware watermarks is done in the following way: BUF_xxxx_I is accessed when sb=$SB_BUF and pool=$POOL_ING REF_xxxx_I is accessed when sb=$SB_REF and pool=$POOL_ING BUF_xxxx_E is accessed when sb=$SB_BUF and pool=$POOL_EGR REF_xxxx_E is accessed when sb=$SB_REF and pool=$POOL_EGR Configuring the sharing watermarks for COL_SHR(dp=0) is done implicitly by modifying the corresponding pool size. By default, the pool size has maximum size, so this can be skipped. devlink sb pool set pci/0000:00:00.5 sb $SB_BUF pool $POOL_ING \ size 103872 thtype static Since by default there is no buffer reservation, the above command has maxed out BUF_COL_SHR_I(dp=0). Configuring the per-port reservation watermark (P_RSRV) is done in the following way: devlink sb port pool set pci/0000:00:00.5/0 sb $SB_BUF \ pool $POOL_ING th 1000 The above command sets BUF_P_RSRV_I(port 0) to 1000 bytes. After this command, the sharing watermarks are internally reconfigured with 1000 bytes less, i.e. from 103872 bytes to 102872 bytes. Configuring the per-port-tc reservation watermarks (Q_RSRV) is done in the following way: for tc in {0..7}; do devlink sb tc bind set pci/0000:00:00.5/0 sb 0 tc $tc \ type ingress pool $POOL_ING \ th 3000 done The above command sets BUF_Q_RSRV_I(port 0, tc 0..7) to 3000 bytes. The sharing watermarks are again reconfigured with 24000 bytes less. Signed-off-by: Vladimir Oltean Reviewed-by: Florian Fainelli --- Changes in v3: None. Changes in v2: - Calling ocelot_watermark_init from ocelot_devlink_sb_register, since there was a bug in v1 where ocelot_watermark_init would use an uninitialized value from ocelot->pool_size, so we need to ensure that ocelot_watermark_init is called after ocelot_devlink_sb_register actually initializes the pool sizes. - Deleted the "detected N bytes and M frame references" message since that information is now available through devlink-sb. drivers/net/dsa/ocelot/felix.c | 118 ++++++ drivers/net/ethernet/mscc/ocelot.c | 5 - drivers/net/ethernet/mscc/ocelot.h | 1 - drivers/net/ethernet/mscc/ocelot_devlink.c | 453 ++++++++++++++++++++- drivers/net/ethernet/mscc/ocelot_net.c | 143 +++++++ drivers/net/ethernet/mscc/ocelot_vsc7514.c | 27 +- include/soc/mscc/ocelot.h | 47 +++ 7 files changed, 781 insertions(+), 13 deletions(-) diff --git a/drivers/net/dsa/ocelot/felix.c b/drivers/net/dsa/ocelot/felix.c index f41f3476ae06..8c421165213a 100644 --- a/drivers/net/dsa/ocelot/felix.c +++ b/drivers/net/dsa/ocelot/felix.c @@ -456,6 +456,7 @@ static int felix_init_structs(struct felix *felix, int num_phys_ports) ocelot->ops = felix->info->ops; ocelot->inj_prefix = OCELOT_TAG_PREFIX_SHORT; ocelot->xtr_prefix = OCELOT_TAG_PREFIX_SHORT; + ocelot->devlink = felix->ds->devlink; port_phy_modes = kcalloc(num_phys_ports, sizeof(phy_interface_t), GFP_KERNEL); @@ -617,6 +618,10 @@ static int felix_setup(struct dsa_switch *ds) felix_port_qos_map_init(ocelot, port); } + err = ocelot_devlink_sb_register(ocelot); + if (err) + return err; + /* Include the CPU port module in the forwarding mask for unknown * unicast - the hardware default value for ANA_FLOODING_FLD_UNICAST * excludes BIT(ocelot->num_phys_ports), and so does ocelot_init, since @@ -639,6 +644,7 @@ static void felix_teardown(struct dsa_switch *ds) struct felix *felix = ocelot_to_felix(ocelot); int port; + ocelot_devlink_sb_unregister(ocelot); if (ocelot->ptp) ocelot_deinit_timestamp(ocelot); ocelot_deinit(ocelot); @@ -779,6 +785,108 @@ static int felix_port_setup_tc(struct dsa_switch *ds, int port, return -EOPNOTSUPP; } +static int felix_sb_pool_get(struct dsa_switch *ds, unsigned int sb_index, + u16 pool_index, + struct devlink_sb_pool_info *pool_info) +{ + struct ocelot *ocelot = ds->priv; + + return ocelot_sb_pool_get(ocelot, sb_index, pool_index, pool_info); +} + +static int felix_sb_pool_set(struct dsa_switch *ds, unsigned int sb_index, + u16 pool_index, u32 size, + enum devlink_sb_threshold_type threshold_type, + struct netlink_ext_ack *extack) +{ + struct ocelot *ocelot = ds->priv; + + return ocelot_sb_pool_set(ocelot, sb_index, pool_index, size, + threshold_type, extack); +} + +static int felix_sb_port_pool_get(struct dsa_switch *ds, int port, + unsigned int sb_index, u16 pool_index, + u32 *p_threshold) +{ + struct ocelot *ocelot = ds->priv; + + return ocelot_sb_port_pool_get(ocelot, port, sb_index, pool_index, + p_threshold); +} + +static int felix_sb_port_pool_set(struct dsa_switch *ds, int port, + unsigned int sb_index, u16 pool_index, + u32 threshold, struct netlink_ext_ack *extack) +{ + struct ocelot *ocelot = ds->priv; + + return ocelot_sb_port_pool_set(ocelot, port, sb_index, pool_index, + threshold, extack); +} + +static int felix_sb_tc_pool_bind_get(struct dsa_switch *ds, int port, + unsigned int sb_index, u16 tc_index, + enum devlink_sb_pool_type pool_type, + u16 *p_pool_index, u32 *p_threshold) +{ + struct ocelot *ocelot = ds->priv; + + return ocelot_sb_tc_pool_bind_get(ocelot, port, sb_index, tc_index, + pool_type, p_pool_index, + p_threshold); +} + +static int felix_sb_tc_pool_bind_set(struct dsa_switch *ds, int port, + unsigned int sb_index, u16 tc_index, + enum devlink_sb_pool_type pool_type, + u16 pool_index, u32 threshold, + struct netlink_ext_ack *extack) +{ + struct ocelot *ocelot = ds->priv; + + return ocelot_sb_tc_pool_bind_set(ocelot, port, sb_index, tc_index, + pool_type, pool_index, threshold, + extack); +} + +static int felix_sb_occ_snapshot(struct dsa_switch *ds, + unsigned int sb_index) +{ + struct ocelot *ocelot = ds->priv; + + return ocelot_sb_occ_snapshot(ocelot, sb_index); +} + +static int felix_sb_occ_max_clear(struct dsa_switch *ds, + unsigned int sb_index) +{ + struct ocelot *ocelot = ds->priv; + + return ocelot_sb_occ_max_clear(ocelot, sb_index); +} + +static int felix_sb_occ_port_pool_get(struct dsa_switch *ds, int port, + unsigned int sb_index, u16 pool_index, + u32 *p_cur, u32 *p_max) +{ + struct ocelot *ocelot = ds->priv; + + return ocelot_sb_occ_port_pool_get(ocelot, port, sb_index, pool_index, + p_cur, p_max); +} + +static int felix_sb_occ_tc_port_bind_get(struct dsa_switch *ds, int port, + unsigned int sb_index, u16 tc_index, + enum devlink_sb_pool_type pool_type, + u32 *p_cur, u32 *p_max) +{ + struct ocelot *ocelot = ds->priv; + + return ocelot_sb_occ_tc_port_bind_get(ocelot, port, sb_index, tc_index, + pool_type, p_cur, p_max); +} + const struct dsa_switch_ops felix_switch_ops = { .get_tag_protocol = felix_get_tag_protocol, .setup = felix_setup, @@ -819,6 +927,16 @@ const struct dsa_switch_ops felix_switch_ops = { .cls_flower_del = felix_cls_flower_del, .cls_flower_stats = felix_cls_flower_stats, .port_setup_tc = felix_port_setup_tc, + .devlink_sb_pool_get = felix_sb_pool_get, + .devlink_sb_pool_set = felix_sb_pool_set, + .devlink_sb_port_pool_get = felix_sb_port_pool_get, + .devlink_sb_port_pool_set = felix_sb_port_pool_set, + .devlink_sb_tc_pool_bind_get = felix_sb_tc_pool_bind_get, + .devlink_sb_tc_pool_bind_set = felix_sb_tc_pool_bind_set, + .devlink_sb_occ_snapshot = felix_sb_occ_snapshot, + .devlink_sb_occ_max_clear = felix_sb_occ_max_clear, + .devlink_sb_occ_port_pool_get = felix_sb_occ_port_pool_get, + .devlink_sb_occ_tc_port_bind_get= felix_sb_occ_tc_port_bind_get, }; struct net_device *felix_port_to_netdev(struct ocelot *ocelot, int port) diff --git a/drivers/net/ethernet/mscc/ocelot.c b/drivers/net/ethernet/mscc/ocelot.c index f547728c6718..02fa86c72eb5 100644 --- a/drivers/net/ethernet/mscc/ocelot.c +++ b/drivers/net/ethernet/mscc/ocelot.c @@ -1492,10 +1492,6 @@ static void ocelot_detect_features(struct ocelot *ocelot) eq_ctrl = ocelot_read(ocelot, QSYS_EQ_CTRL); ocelot->num_frame_refs = QSYS_MMGT_EQ_CTRL_FP_FREE_CNT(eq_ctrl); - - dev_info(ocelot->dev, - "Detected %d bytes of packet buffer and %d frame references\n", - ocelot->packet_buffer_size, ocelot->num_frame_refs); } int ocelot_init(struct ocelot *ocelot) @@ -1636,7 +1632,6 @@ int ocelot_init(struct ocelot *ocelot) INIT_DELAYED_WORK(&ocelot->stats_work, ocelot_check_stats_work); queue_delayed_work(ocelot->stats_queue, &ocelot->stats_work, OCELOT_STATS_CHECK_DELAY); - ocelot_watermark_init(ocelot); return 0; } diff --git a/drivers/net/ethernet/mscc/ocelot.h b/drivers/net/ethernet/mscc/ocelot.h index a9d60ef30344..2e9a3c4697c8 100644 --- a/drivers/net/ethernet/mscc/ocelot.h +++ b/drivers/net/ethernet/mscc/ocelot.h @@ -125,7 +125,6 @@ int ocelot_probe_port(struct ocelot *ocelot, int port, struct regmap *target, struct phy_device *phy); int ocelot_devlink_init(struct ocelot *ocelot); void ocelot_devlink_teardown(struct ocelot *ocelot); -void ocelot_watermark_init(struct ocelot *ocelot); extern struct notifier_block ocelot_netdevice_nb; extern struct notifier_block ocelot_switchdev_nb; diff --git a/drivers/net/ethernet/mscc/ocelot_devlink.c b/drivers/net/ethernet/mscc/ocelot_devlink.c index c96309cde82d..d441ab8dcfb8 100644 --- a/drivers/net/ethernet/mscc/ocelot_devlink.c +++ b/drivers/net/ethernet/mscc/ocelot_devlink.c @@ -232,6 +232,14 @@ static void ocelot_wm_write(struct ocelot *ocelot, int index, u32 val) ocelot_write_gix(ocelot, wm, QSYS_RES_CFG, index); } +static void ocelot_wm_status(struct ocelot *ocelot, int index, u32 *inuse, + u32 *maxuse) +{ + int res_stat = ocelot_read_gix(ocelot, QSYS_RES_STAT, index); + + return ocelot->ops->wm_stat(res_stat, inuse, maxuse); +} + /* The hardware comes out of reset with strange defaults: the sum of all * reservations for frame memory is larger than the total buffer size. * One has to wonder how can the reservation watermarks still guarantee @@ -348,10 +356,14 @@ static void ocelot_setup_sharing_watermarks(struct ocelot *ocelot) ocelot_get_buf_rsrv(ocelot, &buf_rsrv_i, &buf_rsrv_e); ocelot_get_ref_rsrv(ocelot, &ref_rsrv_i, &ref_rsrv_e); - buf_shr_i = ocelot->packet_buffer_size - buf_rsrv_i; - buf_shr_e = ocelot->packet_buffer_size - buf_rsrv_e; - ref_shr_i = ocelot->num_frame_refs - ref_rsrv_i; - ref_shr_e = ocelot->num_frame_refs - ref_rsrv_e; + buf_shr_i = ocelot->pool_size[OCELOT_SB_BUF][OCELOT_SB_POOL_ING] - + buf_rsrv_i; + buf_shr_e = ocelot->pool_size[OCELOT_SB_BUF][OCELOT_SB_POOL_EGR] - + buf_rsrv_e; + ref_shr_i = ocelot->pool_size[OCELOT_SB_REF][OCELOT_SB_POOL_ING] - + ref_rsrv_i; + ref_shr_e = ocelot->pool_size[OCELOT_SB_REF][OCELOT_SB_POOL_EGR] - + ref_rsrv_e; buf_shr_i /= OCELOT_BUFFER_CELL_SZ; buf_shr_e /= OCELOT_BUFFER_CELL_SZ; @@ -366,6 +378,40 @@ static void ocelot_setup_sharing_watermarks(struct ocelot *ocelot) ocelot_wm_write(ocelot, REF_COL_SHR_I(1), 0); } +/* Ensure that all reservations can be enforced */ +static int ocelot_watermark_validate(struct ocelot *ocelot, + struct netlink_ext_ack *extack) +{ + u32 buf_rsrv_i, buf_rsrv_e; + u32 ref_rsrv_i, ref_rsrv_e; + + ocelot_get_buf_rsrv(ocelot, &buf_rsrv_i, &buf_rsrv_e); + ocelot_get_ref_rsrv(ocelot, &ref_rsrv_i, &ref_rsrv_e); + + if (buf_rsrv_i > ocelot->pool_size[OCELOT_SB_BUF][OCELOT_SB_POOL_ING]) { + NL_SET_ERR_MSG_MOD(extack, + "Ingress frame reservations exceed pool size"); + return -ERANGE; + } + if (buf_rsrv_e > ocelot->pool_size[OCELOT_SB_BUF][OCELOT_SB_POOL_EGR]) { + NL_SET_ERR_MSG_MOD(extack, + "Egress frame reservations exceed pool size"); + return -ERANGE; + } + if (ref_rsrv_i > ocelot->pool_size[OCELOT_SB_REF][OCELOT_SB_POOL_ING]) { + NL_SET_ERR_MSG_MOD(extack, + "Ingress reference reservations exceed pool size"); + return -ERANGE; + } + if (ref_rsrv_e > ocelot->pool_size[OCELOT_SB_REF][OCELOT_SB_POOL_EGR]) { + NL_SET_ERR_MSG_MOD(extack, + "Egress reference reservations exceed pool size"); + return -ERANGE; + } + + return 0; +} + /* The hardware works like this: * * Frame forwarding decision taken @@ -427,7 +473,7 @@ static void ocelot_setup_sharing_watermarks(struct ocelot *ocelot) * reservations by default, let sharing use all resources) and disables the * unused watermarks. */ -void ocelot_watermark_init(struct ocelot *ocelot) +static void ocelot_watermark_init(struct ocelot *ocelot) { int all_tcs = GENMASK(OCELOT_NUM_TC - 1, 0); int port; @@ -440,3 +486,400 @@ void ocelot_watermark_init(struct ocelot *ocelot) ocelot_disable_tc_sharing_watermarks(ocelot); ocelot_setup_sharing_watermarks(ocelot); } + +/* Pool size and type are fixed up at runtime. Keeping this structure to + * look up the cell size multipliers. + */ +static const struct devlink_sb_pool_info ocelot_sb_pool[] = { + [OCELOT_SB_BUF] = { + .cell_size = OCELOT_BUFFER_CELL_SZ, + .threshold_type = DEVLINK_SB_THRESHOLD_TYPE_STATIC, + }, + [OCELOT_SB_REF] = { + .cell_size = 1, + .threshold_type = DEVLINK_SB_THRESHOLD_TYPE_STATIC, + }, +}; + +/* Returns the pool size configured through ocelot_sb_pool_set */ +int ocelot_sb_pool_get(struct ocelot *ocelot, unsigned int sb_index, + u16 pool_index, + struct devlink_sb_pool_info *pool_info) +{ + if (sb_index >= OCELOT_SB_NUM) + return -ENODEV; + if (pool_index >= OCELOT_SB_POOL_NUM) + return -ENODEV; + + *pool_info = ocelot_sb_pool[sb_index]; + pool_info->size = ocelot->pool_size[sb_index][pool_index]; + if (pool_index) + pool_info->pool_type = DEVLINK_SB_POOL_TYPE_INGRESS; + else + pool_info->pool_type = DEVLINK_SB_POOL_TYPE_EGRESS; + + return 0; +} +EXPORT_SYMBOL(ocelot_sb_pool_get); + +/* The pool size received here configures the total amount of resources used on + * ingress (or on egress, depending upon the pool index). The pool size, minus + * the values for the port and port-tc reservations, is written into the + * COL_SHR(dp=0) sharing watermark. + */ +int ocelot_sb_pool_set(struct ocelot *ocelot, unsigned int sb_index, + u16 pool_index, u32 size, + enum devlink_sb_threshold_type threshold_type, + struct netlink_ext_ack *extack) +{ + u32 old_pool_size; + int err; + + if (sb_index >= OCELOT_SB_NUM) { + NL_SET_ERR_MSG_MOD(extack, + "Invalid sb, use 0 for buffers and 1 for frame references"); + return -ENODEV; + } + if (pool_index >= OCELOT_SB_POOL_NUM) { + NL_SET_ERR_MSG_MOD(extack, + "Invalid pool, use 0 for ingress and 1 for egress"); + return -ENODEV; + } + if (threshold_type != DEVLINK_SB_THRESHOLD_TYPE_STATIC) { + NL_SET_ERR_MSG_MOD(extack, + "Only static threshold supported"); + return -EOPNOTSUPP; + } + + old_pool_size = ocelot->pool_size[sb_index][pool_index]; + ocelot->pool_size[sb_index][pool_index] = size; + + err = ocelot_watermark_validate(ocelot, extack); + if (err) { + ocelot->pool_size[sb_index][pool_index] = old_pool_size; + return err; + } + + ocelot_setup_sharing_watermarks(ocelot); + + return 0; +} +EXPORT_SYMBOL(ocelot_sb_pool_set); + +/* This retrieves the configuration made with ocelot_sb_port_pool_set */ +int ocelot_sb_port_pool_get(struct ocelot *ocelot, int port, + unsigned int sb_index, u16 pool_index, + u32 *p_threshold) +{ + int wm_index; + + switch (sb_index) { + case OCELOT_SB_BUF: + if (pool_index == OCELOT_SB_POOL_ING) + wm_index = BUF_P_RSRV_I(port); + else + wm_index = BUF_P_RSRV_E(port); + break; + case OCELOT_SB_REF: + if (pool_index == OCELOT_SB_POOL_ING) + wm_index = REF_P_RSRV_I(port); + else + wm_index = REF_P_RSRV_E(port); + break; + default: + return -ENODEV; + } + + *p_threshold = ocelot_wm_read(ocelot, wm_index); + *p_threshold *= ocelot_sb_pool[sb_index].cell_size; + + return 0; +} +EXPORT_SYMBOL(ocelot_sb_port_pool_get); + +/* This configures the P_RSRV per-port reserved resource watermark */ +int ocelot_sb_port_pool_set(struct ocelot *ocelot, int port, + unsigned int sb_index, u16 pool_index, + u32 threshold, struct netlink_ext_ack *extack) +{ + int wm_index, err; + u32 old_thr; + + switch (sb_index) { + case OCELOT_SB_BUF: + if (pool_index == OCELOT_SB_POOL_ING) + wm_index = BUF_P_RSRV_I(port); + else + wm_index = BUF_P_RSRV_E(port); + break; + case OCELOT_SB_REF: + if (pool_index == OCELOT_SB_POOL_ING) + wm_index = REF_P_RSRV_I(port); + else + wm_index = REF_P_RSRV_E(port); + break; + default: + NL_SET_ERR_MSG_MOD(extack, "Invalid shared buffer"); + return -ENODEV; + } + + threshold /= ocelot_sb_pool[sb_index].cell_size; + + old_thr = ocelot_wm_read(ocelot, wm_index); + ocelot_wm_write(ocelot, wm_index, threshold); + + err = ocelot_watermark_validate(ocelot, extack); + if (err) { + ocelot_wm_write(ocelot, wm_index, old_thr); + return err; + } + + ocelot_setup_sharing_watermarks(ocelot); + + return 0; +} +EXPORT_SYMBOL(ocelot_sb_port_pool_set); + +/* This retrieves the configuration done by ocelot_sb_tc_pool_bind_set */ +int ocelot_sb_tc_pool_bind_get(struct ocelot *ocelot, int port, + unsigned int sb_index, u16 tc_index, + enum devlink_sb_pool_type pool_type, + u16 *p_pool_index, u32 *p_threshold) +{ + int wm_index; + + switch (sb_index) { + case OCELOT_SB_BUF: + if (pool_type == DEVLINK_SB_POOL_TYPE_INGRESS) + wm_index = BUF_Q_RSRV_I(port, tc_index); + else + wm_index = BUF_Q_RSRV_E(port, tc_index); + break; + case OCELOT_SB_REF: + if (pool_type == DEVLINK_SB_POOL_TYPE_INGRESS) + wm_index = REF_Q_RSRV_I(port, tc_index); + else + wm_index = REF_Q_RSRV_E(port, tc_index); + break; + default: + return -ENODEV; + } + + *p_threshold = ocelot_wm_read(ocelot, wm_index); + *p_threshold *= ocelot_sb_pool[sb_index].cell_size; + + if (pool_type == DEVLINK_SB_POOL_TYPE_INGRESS) + *p_pool_index = 0; + else + *p_pool_index = 1; + + return 0; +} +EXPORT_SYMBOL(ocelot_sb_tc_pool_bind_get); + +/* This configures the Q_RSRV per-port-tc reserved resource watermark */ +int ocelot_sb_tc_pool_bind_set(struct ocelot *ocelot, int port, + unsigned int sb_index, u16 tc_index, + enum devlink_sb_pool_type pool_type, + u16 pool_index, u32 threshold, + struct netlink_ext_ack *extack) +{ + int wm_index, err; + u32 old_thr; + + /* Paranoid check? */ + if (pool_index == OCELOT_SB_POOL_ING && + pool_type != DEVLINK_SB_POOL_TYPE_INGRESS) + return -EINVAL; + if (pool_index == OCELOT_SB_POOL_EGR && + pool_type != DEVLINK_SB_POOL_TYPE_EGRESS) + return -EINVAL; + + switch (sb_index) { + case OCELOT_SB_BUF: + if (pool_type == DEVLINK_SB_POOL_TYPE_INGRESS) + wm_index = BUF_Q_RSRV_I(port, tc_index); + else + wm_index = BUF_Q_RSRV_E(port, tc_index); + break; + case OCELOT_SB_REF: + if (pool_type == DEVLINK_SB_POOL_TYPE_INGRESS) + wm_index = REF_Q_RSRV_I(port, tc_index); + else + wm_index = REF_Q_RSRV_E(port, tc_index); + break; + default: + NL_SET_ERR_MSG_MOD(extack, "Invalid shared buffer"); + return -ENODEV; + } + + threshold /= ocelot_sb_pool[sb_index].cell_size; + + old_thr = ocelot_wm_read(ocelot, wm_index); + ocelot_wm_write(ocelot, wm_index, threshold); + err = ocelot_watermark_validate(ocelot, extack); + if (err) { + ocelot_wm_write(ocelot, wm_index, old_thr); + return err; + } + + ocelot_setup_sharing_watermarks(ocelot); + + return 0; +} +EXPORT_SYMBOL(ocelot_sb_tc_pool_bind_set); + +/* The hardware does not support atomic snapshots, we'll read out the + * occupancy registers individually and have this as just a stub. + */ +int ocelot_sb_occ_snapshot(struct ocelot *ocelot, unsigned int sb_index) +{ + return 0; +} +EXPORT_SYMBOL(ocelot_sb_occ_snapshot); + +/* The watermark occupancy registers are cleared upon read, + * so let's read them. + */ +int ocelot_sb_occ_max_clear(struct ocelot *ocelot, unsigned int sb_index) +{ + u32 inuse, maxuse; + int port, prio; + + switch (sb_index) { + case OCELOT_SB_BUF: + for (port = 0; port <= ocelot->num_phys_ports; port++) { + for (prio = 0; prio < OCELOT_NUM_TC; prio++) { + ocelot_wm_status(ocelot, BUF_Q_RSRV_I(port, prio), + &inuse, &maxuse); + ocelot_wm_status(ocelot, BUF_Q_RSRV_E(port, prio), + &inuse, &maxuse); + } + ocelot_wm_status(ocelot, BUF_P_RSRV_I(port), + &inuse, &maxuse); + ocelot_wm_status(ocelot, BUF_P_RSRV_E(port), + &inuse, &maxuse); + } + break; + case OCELOT_SB_REF: + for (port = 0; port <= ocelot->num_phys_ports; port++) { + for (prio = 0; prio < OCELOT_NUM_TC; prio++) { + ocelot_wm_status(ocelot, REF_Q_RSRV_I(port, prio), + &inuse, &maxuse); + ocelot_wm_status(ocelot, REF_Q_RSRV_E(port, prio), + &inuse, &maxuse); + } + ocelot_wm_status(ocelot, REF_P_RSRV_I(port), + &inuse, &maxuse); + ocelot_wm_status(ocelot, REF_P_RSRV_E(port), + &inuse, &maxuse); + } + break; + default: + return -ENODEV; + } + + return 0; +} +EXPORT_SYMBOL(ocelot_sb_occ_max_clear); + +/* This retrieves the watermark occupancy for per-port P_RSRV watermarks */ +int ocelot_sb_occ_port_pool_get(struct ocelot *ocelot, int port, + unsigned int sb_index, u16 pool_index, + u32 *p_cur, u32 *p_max) +{ + int wm_index; + + switch (sb_index) { + case OCELOT_SB_BUF: + if (pool_index == OCELOT_SB_POOL_ING) + wm_index = BUF_P_RSRV_I(port); + else + wm_index = BUF_P_RSRV_E(port); + break; + case OCELOT_SB_REF: + if (pool_index == OCELOT_SB_POOL_ING) + wm_index = REF_P_RSRV_I(port); + else + wm_index = REF_P_RSRV_E(port); + break; + default: + return -ENODEV; + } + + ocelot_wm_status(ocelot, wm_index, p_cur, p_max); + *p_cur *= ocelot_sb_pool[sb_index].cell_size; + *p_max *= ocelot_sb_pool[sb_index].cell_size; + + return 0; +} +EXPORT_SYMBOL(ocelot_sb_occ_port_pool_get); + +/* This retrieves the watermark occupancy for per-port-tc Q_RSRV watermarks */ +int ocelot_sb_occ_tc_port_bind_get(struct ocelot *ocelot, int port, + unsigned int sb_index, u16 tc_index, + enum devlink_sb_pool_type pool_type, + u32 *p_cur, u32 *p_max) +{ + int wm_index; + + switch (sb_index) { + case OCELOT_SB_BUF: + if (pool_type == DEVLINK_SB_POOL_TYPE_INGRESS) + wm_index = BUF_Q_RSRV_I(port, tc_index); + else + wm_index = BUF_Q_RSRV_E(port, tc_index); + break; + case OCELOT_SB_REF: + if (pool_type == DEVLINK_SB_POOL_TYPE_INGRESS) + wm_index = REF_Q_RSRV_I(port, tc_index); + else + wm_index = REF_Q_RSRV_E(port, tc_index); + break; + default: + return -ENODEV; + } + + ocelot_wm_status(ocelot, wm_index, p_cur, p_max); + *p_cur *= ocelot_sb_pool[sb_index].cell_size; + *p_max *= ocelot_sb_pool[sb_index].cell_size; + + return 0; +} +EXPORT_SYMBOL(ocelot_sb_occ_tc_port_bind_get); + +int ocelot_devlink_sb_register(struct ocelot *ocelot) +{ + int err; + + err = devlink_sb_register(ocelot->devlink, OCELOT_SB_BUF, + ocelot->packet_buffer_size, 1, 1, + OCELOT_NUM_TC, OCELOT_NUM_TC); + if (err) + return err; + + err = devlink_sb_register(ocelot->devlink, OCELOT_SB_REF, + ocelot->num_frame_refs, 1, 1, + OCELOT_NUM_TC, OCELOT_NUM_TC); + if (err) { + devlink_sb_unregister(ocelot->devlink, OCELOT_SB_BUF); + return err; + } + + ocelot->pool_size[OCELOT_SB_BUF][OCELOT_SB_POOL_ING] = ocelot->packet_buffer_size; + ocelot->pool_size[OCELOT_SB_BUF][OCELOT_SB_POOL_EGR] = ocelot->packet_buffer_size; + ocelot->pool_size[OCELOT_SB_REF][OCELOT_SB_POOL_ING] = ocelot->num_frame_refs; + ocelot->pool_size[OCELOT_SB_REF][OCELOT_SB_POOL_EGR] = ocelot->num_frame_refs; + + ocelot_watermark_init(ocelot); + + return 0; +} +EXPORT_SYMBOL(ocelot_devlink_sb_register); + +void ocelot_devlink_sb_unregister(struct ocelot *ocelot) +{ + devlink_sb_unregister(ocelot->devlink, OCELOT_SB_BUF); + devlink_sb_unregister(ocelot->devlink, OCELOT_SB_REF); +} +EXPORT_SYMBOL(ocelot_devlink_sb_unregister); diff --git a/drivers/net/ethernet/mscc/ocelot_net.c b/drivers/net/ethernet/mscc/ocelot_net.c index d0d98c6adea8..ae1f9d6cf7f2 100644 --- a/drivers/net/ethernet/mscc/ocelot_net.c +++ b/drivers/net/ethernet/mscc/ocelot_net.c @@ -1,7 +1,11 @@ // SPDX-License-Identifier: (GPL-2.0 OR MIT) /* Microsemi Ocelot Switch driver + * + * This contains glue logic between the switchdev driver operations and the + * mscc_ocelot_switch_lib. * * Copyright (c) 2017, 2019 Microsemi Corporation + * Copyright 2020 NXP Semiconductors */ #include @@ -12,7 +16,146 @@ struct ocelot_devlink_private { struct ocelot *ocelot; }; +static struct ocelot_port_private * +devlink_to_ocelot_port_priv(struct devlink_port *dlp) +{ + return container_of(dlp, struct ocelot_port_private, devlink_port); +} + +static int ocelot_devlink_sb_pool_get(struct devlink *dl, + unsigned int sb_index, u16 pool_index, + struct devlink_sb_pool_info *pool_info) +{ + struct ocelot_devlink_private *dl_priv = devlink_priv(dl); + struct ocelot *ocelot = dl_priv->ocelot; + + return ocelot_sb_pool_get(ocelot, sb_index, pool_index, pool_info); +} + +static int ocelot_devlink_sb_pool_set(struct devlink *dl, unsigned int sb_index, + u16 pool_index, u32 size, + enum devlink_sb_threshold_type threshold_type, + struct netlink_ext_ack *extack) +{ + struct ocelot_devlink_private *dl_priv = devlink_priv(dl); + struct ocelot *ocelot = dl_priv->ocelot; + + return ocelot_sb_pool_set(ocelot, sb_index, pool_index, size, + threshold_type, extack); +} + +static int ocelot_devlink_sb_port_pool_get(struct devlink_port *dlp, + unsigned int sb_index, u16 pool_index, + u32 *p_threshold) +{ + struct ocelot_devlink_private *dl_priv = devlink_priv(dlp->devlink); + struct ocelot_port_private *priv = devlink_to_ocelot_port_priv(dlp); + struct ocelot *ocelot = dl_priv->ocelot; + + return ocelot_sb_port_pool_get(ocelot, priv->chip_port, sb_index, + pool_index, p_threshold); +} + +static int ocelot_devlink_sb_port_pool_set(struct devlink_port *dlp, + unsigned int sb_index, u16 pool_index, + u32 threshold, + struct netlink_ext_ack *extack) +{ + struct ocelot_devlink_private *dl_priv = devlink_priv(dlp->devlink); + struct ocelot_port_private *priv = devlink_to_ocelot_port_priv(dlp); + struct ocelot *ocelot = dl_priv->ocelot; + + return ocelot_sb_port_pool_set(ocelot, priv->chip_port, sb_index, + pool_index, threshold, extack); +} + +static int +ocelot_devlink_sb_tc_pool_bind_get(struct devlink_port *dlp, + unsigned int sb_index, u16 tc_index, + enum devlink_sb_pool_type pool_type, + u16 *p_pool_index, u32 *p_threshold) +{ + struct ocelot_devlink_private *dl_priv = devlink_priv(dlp->devlink); + struct ocelot_port_private *priv = devlink_to_ocelot_port_priv(dlp); + struct ocelot *ocelot = dl_priv->ocelot; + + return ocelot_sb_tc_pool_bind_get(ocelot, priv->chip_port, sb_index, + tc_index, pool_type, p_pool_index, + p_threshold); +} + +static int +ocelot_devlink_sb_tc_pool_bind_set(struct devlink_port *dlp, + unsigned int sb_index, u16 tc_index, + enum devlink_sb_pool_type pool_type, + u16 pool_index, u32 threshold, + struct netlink_ext_ack *extack) +{ + struct ocelot_devlink_private *dl_priv = devlink_priv(dlp->devlink); + struct ocelot_port_private *priv = devlink_to_ocelot_port_priv(dlp); + struct ocelot *ocelot = dl_priv->ocelot; + + return ocelot_sb_tc_pool_bind_set(ocelot, priv->chip_port, sb_index, + tc_index, pool_type, pool_index, + threshold, extack); +} + +static int ocelot_devlink_sb_occ_snapshot(struct devlink *dl, + unsigned int sb_index) +{ + struct ocelot_devlink_private *dl_priv = devlink_priv(dl); + struct ocelot *ocelot = dl_priv->ocelot; + + return ocelot_sb_occ_snapshot(ocelot, sb_index); +} + +static int ocelot_devlink_sb_occ_max_clear(struct devlink *dl, + unsigned int sb_index) +{ + struct ocelot_devlink_private *dl_priv = devlink_priv(dl); + struct ocelot *ocelot = dl_priv->ocelot; + + return ocelot_sb_occ_max_clear(ocelot, sb_index); +} + +static int ocelot_devlink_sb_occ_port_pool_get(struct devlink_port *dlp, + unsigned int sb_index, + u16 pool_index, u32 *p_cur, + u32 *p_max) +{ + struct ocelot_devlink_private *dl_priv = devlink_priv(dlp->devlink); + struct ocelot_port_private *priv = devlink_to_ocelot_port_priv(dlp); + struct ocelot *ocelot = dl_priv->ocelot; + + return ocelot_sb_occ_port_pool_get(ocelot, priv->chip_port, sb_index, + pool_index, p_cur, p_max); +} + +static int +ocelot_devlink_sb_occ_tc_port_bind_get(struct devlink_port *dlp, + unsigned int sb_index, u16 tc_index, + enum devlink_sb_pool_type pool_type, + u32 *p_cur, u32 *p_max) +{ + struct ocelot_devlink_private *dl_priv = devlink_priv(dlp->devlink); + struct ocelot_port_private *priv = devlink_to_ocelot_port_priv(dlp); + struct ocelot *ocelot = dl_priv->ocelot; + + return ocelot_sb_occ_tc_port_bind_get(ocelot, priv->chip_port, sb_index, + tc_index, pool_type, p_cur, p_max); +} + static const struct devlink_ops ocelot_devlink_ops = { + .sb_pool_get = ocelot_devlink_sb_pool_get, + .sb_pool_set = ocelot_devlink_sb_pool_set, + .sb_port_pool_get = ocelot_devlink_sb_port_pool_get, + .sb_port_pool_set = ocelot_devlink_sb_port_pool_set, + .sb_tc_pool_bind_get = ocelot_devlink_sb_tc_pool_bind_get, + .sb_tc_pool_bind_set = ocelot_devlink_sb_tc_pool_bind_set, + .sb_occ_snapshot = ocelot_devlink_sb_occ_snapshot, + .sb_occ_max_clear = ocelot_devlink_sb_occ_max_clear, + .sb_occ_port_pool_get = ocelot_devlink_sb_occ_port_pool_get, + .sb_occ_tc_port_bind_get = ocelot_devlink_sb_occ_tc_port_bind_get, }; static int ocelot_port_devlink_init(struct ocelot *ocelot, int port) diff --git a/drivers/net/ethernet/mscc/ocelot_vsc7514.c b/drivers/net/ethernet/mscc/ocelot_vsc7514.c index 80fdf971d573..7bb80144dd1d 100644 --- a/drivers/net/ethernet/mscc/ocelot_vsc7514.c +++ b/drivers/net/ethernet/mscc/ocelot_vsc7514.c @@ -1173,6 +1173,29 @@ static int mscc_ocelot_init_ports(struct platform_device *pdev, return 0; } +static int mscc_ocelot_devlink_setup(struct ocelot *ocelot) +{ + int err; + + err = ocelot_devlink_init(ocelot); + if (err) + return err; + + err = ocelot_devlink_sb_register(ocelot); + if (err) { + ocelot_devlink_teardown(ocelot); + return err; + } + + return 0; +} + +static void mscc_ocelot_devlink_cleanup(struct ocelot *ocelot) +{ + ocelot_devlink_sb_unregister(ocelot); + ocelot_devlink_teardown(ocelot); +} + static int mscc_ocelot_probe(struct platform_device *pdev) { struct device_node *np = pdev->dev.of_node; @@ -1293,7 +1316,7 @@ static int mscc_ocelot_probe(struct platform_device *pdev) } } - err = ocelot_devlink_init(ocelot); + err = mscc_ocelot_devlink_setup(ocelot); if (err) { mscc_ocelot_release_ports(ocelot); goto out_ocelot_deinit; @@ -1320,7 +1343,7 @@ static int mscc_ocelot_remove(struct platform_device *pdev) { struct ocelot *ocelot = platform_get_drvdata(pdev); - ocelot_devlink_teardown(ocelot); + mscc_ocelot_devlink_cleanup(ocelot); ocelot_deinit_timestamp(ocelot); mscc_ocelot_release_ports(ocelot); ocelot_deinit(ocelot); diff --git a/include/soc/mscc/ocelot.h b/include/soc/mscc/ocelot.h index 75cd457b99b9..762b827784b8 100644 --- a/include/soc/mscc/ocelot.h +++ b/include/soc/mscc/ocelot.h @@ -579,6 +579,18 @@ struct ocelot_vlan { u16 vid; }; +enum ocelot_sb { + OCELOT_SB_BUF, + OCELOT_SB_REF, + OCELOT_SB_NUM, +}; + +enum ocelot_sb_pool { + OCELOT_SB_POOL_ING, + OCELOT_SB_POOL_EGR, + OCELOT_SB_POOL_NUM, +}; + struct ocelot_port { struct ocelot *ocelot; @@ -611,6 +623,7 @@ struct ocelot { const struct ocelot_stat_layout *stats_layout; unsigned int num_stats; + u32 pool_size[OCELOT_SB_NUM][OCELOT_SB_POOL_NUM]; int packet_buffer_size; int num_frame_refs; int num_mact_rows; @@ -783,4 +796,38 @@ int ocelot_port_mdb_add(struct ocelot *ocelot, int port, int ocelot_port_mdb_del(struct ocelot *ocelot, int port, const struct switchdev_obj_port_mdb *mdb); +int ocelot_devlink_sb_register(struct ocelot *ocelot); +void ocelot_devlink_sb_unregister(struct ocelot *ocelot); +int ocelot_sb_pool_get(struct ocelot *ocelot, unsigned int sb_index, + u16 pool_index, + struct devlink_sb_pool_info *pool_info); +int ocelot_sb_pool_set(struct ocelot *ocelot, unsigned int sb_index, + u16 pool_index, u32 size, + enum devlink_sb_threshold_type threshold_type, + struct netlink_ext_ack *extack); +int ocelot_sb_port_pool_get(struct ocelot *ocelot, int port, + unsigned int sb_index, u16 pool_index, + u32 *p_threshold); +int ocelot_sb_port_pool_set(struct ocelot *ocelot, int port, + unsigned int sb_index, u16 pool_index, + u32 threshold, struct netlink_ext_ack *extack); +int ocelot_sb_tc_pool_bind_get(struct ocelot *ocelot, int port, + unsigned int sb_index, u16 tc_index, + enum devlink_sb_pool_type pool_type, + u16 *p_pool_index, u32 *p_threshold); +int ocelot_sb_tc_pool_bind_set(struct ocelot *ocelot, int port, + unsigned int sb_index, u16 tc_index, + enum devlink_sb_pool_type pool_type, + u16 pool_index, u32 threshold, + struct netlink_ext_ack *extack); +int ocelot_sb_occ_snapshot(struct ocelot *ocelot, unsigned int sb_index); +int ocelot_sb_occ_max_clear(struct ocelot *ocelot, unsigned int sb_index); +int ocelot_sb_occ_port_pool_get(struct ocelot *ocelot, int port, + unsigned int sb_index, u16 pool_index, + u32 *p_cur, u32 *p_max); +int ocelot_sb_occ_tc_port_bind_get(struct ocelot *ocelot, int port, + unsigned int sb_index, u16 tc_index, + enum devlink_sb_pool_type pool_type, + u32 *p_cur, u32 *p_max); + #endif