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Miller" , Krzysztof Kozlowski , Rob Herring , Lee Jones Subject: [PATCH v5 net-next 12/13] net: dsa: ocelot: add external ocelot switch control Date: Fri, 27 Jan 2023 11:35:58 -0800 Message-Id: <20230127193559.1001051-13-colin.foster@in-advantage.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230127193559.1001051-1-colin.foster@in-advantage.com> References: <20230127193559.1001051-1-colin.foster@in-advantage.com> X-ClientProxiedBy: BYAPR02CA0011.namprd02.prod.outlook.com (2603:10b6:a02:ee::24) To DM5PR1001MB2345.namprd10.prod.outlook.com (2603:10b6:4:2d::31) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DM5PR1001MB2345:EE_|SA2PR10MB4636:EE_ X-MS-Office365-Filtering-Correlation-Id: d2a81cc9-676d-45a0-d4cf-08db009dcb00 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:DM5PR1001MB2345.namprd10.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230025)(376002)(136003)(39840400004)(396003)(346002)(366004)(451199018)(36756003)(86362001)(2906002)(2616005)(6512007)(26005)(186003)(66946007)(66556008)(8676002)(4326008)(66476007)(52116002)(316002)(54906003)(6666004)(1076003)(6506007)(6486002)(478600001)(38350700002)(38100700002)(5660300002)(44832011)(41300700001)(7416002)(8936002)(83380400001);DIR:OUT;SFP:1102; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 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 X-OriginatorOrg: in-advantage.com X-MS-Exchange-CrossTenant-Network-Message-Id: d2a81cc9-676d-45a0-d4cf-08db009dcb00 X-MS-Exchange-CrossTenant-AuthSource: DM5PR1001MB2345.namprd10.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 27 Jan 2023 19:36:32.0783 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 48e842ca-fbd8-4633-a79d-0c955a7d3aae X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: hvQErYTPUVTqwzdUlDYYKEtTmYtkX/cIJx7fGhviuTjMZoxj1rzSP0Sh1WJiEoMT3W2Ju1dQjBFIfhJ6EqY8wxfwDnHt5elPtAbyKnUPAp8= X-MS-Exchange-Transport-CrossTenantHeadersStamped: SA2PR10MB4636 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org Add control of an external VSC7512 chip. Currently the four copper phy ports are fully functional. Communication to external phys is also functional, but the SGMII / QSGMII interfaces are currently non-functional. Signed-off-by: Colin Foster Reviewed-by: Florian Fainelli --- v5 * Rebase to use NET_DSA_MSCC_FELIX_DSA_LIB * Remove ocelot_ext_phylink_validate as part of the rebase * Remove stats_layout reference as part of the rebase * Remove OCELOT_RES_NAME_* macros v4 * Add forward-compatibility for device trees that have ports 4-7 defined by saying they are OCELOT_PORT_MODE_NONE * Utilize new "resource_names" instead of "*_io_res". Many thanks to Vladimir for making this possible. - Also remove ocelot_ext_regmap_init() function * Remove dev_set_drvdata(dev, NULL) from remove() to match other drivers v3 * Remove additional entry in vsc7512_port_modes array * Add MFD_OCELOT namespace import, which is needed for vsc7512_*_io_res v2 * Add MAINTAINERS update * Remove phrase "by way of the ocelot-mfd interface" from the commit message * Move MFD resource addition to a separate patch * Update Kconfig help * Remove "ocelot_ext_reset()" - it is now shared with ocelot_lib * Remove unnecessary includes * Remove "_EXT" from OCELOT_EXT_PORT_MODE_SERDES * Remove _ext from the compatible string * Remove no-longer-necessary GCB register definitions v1 from previous RFC: * Remove unnecessary byteorder and kconfig header includes. * Create OCELOT_EXT_PORT_MODE_SERDES macro to match vsc9959. * Utilize readx_poll_timeout for SYS_RESET_CFG_MEM_INIT. * *_io_res struct arrays have been moved to the MFD files. * Changes to utilize phylink_generic_validate() have been squashed. * dev_err_probe() is used in the probe function. * Make ocelot_ext_switch_of_match static. * Relocate ocelot_ext_ops structure to be next to vsc7512_info, to match what was done in other felix drivers. * Utilize dev_get_regmap() instead of the obsolete ocelot_init_regmap_from_resource() routine. --- MAINTAINERS | 1 + drivers/net/dsa/ocelot/Kconfig | 20 ++++ drivers/net/dsa/ocelot/Makefile | 2 + drivers/net/dsa/ocelot/ocelot_ext.c | 163 ++++++++++++++++++++++++++++ 4 files changed, 186 insertions(+) create mode 100644 drivers/net/dsa/ocelot/ocelot_ext.c diff --git a/MAINTAINERS b/MAINTAINERS index 6e85524a7443..733e311ee9c6 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -15157,6 +15157,7 @@ M: Colin Foster S: Supported F: Documentation/devicetree/bindings/mfd/mscc,ocelot.yaml F: drivers/mfd/ocelot* +F: drivers/net/dsa/ocelot/ocelot_ext.c F: include/linux/mfd/ocelot.h OCXL (Open Coherent Accelerator Processor Interface OpenCAPI) DRIVER diff --git a/drivers/net/dsa/ocelot/Kconfig b/drivers/net/dsa/ocelot/Kconfig index 60f1f7ada465..640725524d0c 100644 --- a/drivers/net/dsa/ocelot/Kconfig +++ b/drivers/net/dsa/ocelot/Kconfig @@ -8,6 +8,26 @@ config NET_DSA_MSCC_FELIX_DSA_LIB Its name comes from the first hardware chip to make use of it (VSC9959), code named Felix. +config NET_DSA_MSCC_OCELOT_EXT + tristate "Ocelot External Ethernet switch support" + depends on NET_DSA && SPI + depends on NET_VENDOR_MICROSEMI + select MDIO_MSCC_MIIM + select MFD_OCELOT_CORE + select MSCC_OCELOT_SWITCH_LIB + select NET_DSA_MSCC_FELIX_DSA_LIB + select NET_DSA_TAG_OCELOT_8021Q + select NET_DSA_TAG_OCELOT + help + This driver supports the VSC7511, VSC7512, VSC7513 and VSC7514 chips + when controlled through SPI. + + The Ocelot switch family is a set of multi-port networking chips. All + of these chips have the ability to be controlled externally through + SPI or PCIe interfaces. + + Say "Y" here to enable external control to these chips. + config NET_DSA_MSCC_FELIX tristate "Ocelot / Felix Ethernet switch support" depends on NET_DSA && PCI diff --git a/drivers/net/dsa/ocelot/Makefile b/drivers/net/dsa/ocelot/Makefile index fd7dde570d4e..ead868a293e3 100644 --- a/drivers/net/dsa/ocelot/Makefile +++ b/drivers/net/dsa/ocelot/Makefile @@ -1,8 +1,10 @@ # SPDX-License-Identifier: GPL-2.0-only obj-$(CONFIG_NET_DSA_MSCC_FELIX_DSA_LIB) += mscc_felix_dsa_lib.o obj-$(CONFIG_NET_DSA_MSCC_FELIX) += mscc_felix.o +obj-$(CONFIG_NET_DSA_MSCC_OCELOT_EXT) += mscc_ocelot_ext.o obj-$(CONFIG_NET_DSA_MSCC_SEVILLE) += mscc_seville.o mscc_felix_dsa_lib-objs := felix.o mscc_felix-objs := felix_vsc9959.o +mscc_ocelot_ext-objs := ocelot_ext.o mscc_seville-objs := seville_vsc9953.o diff --git a/drivers/net/dsa/ocelot/ocelot_ext.c b/drivers/net/dsa/ocelot/ocelot_ext.c new file mode 100644 index 000000000000..14efa6387bd7 --- /dev/null +++ b/drivers/net/dsa/ocelot/ocelot_ext.c @@ -0,0 +1,163 @@ +// SPDX-License-Identifier: (GPL-2.0 OR MIT) +/* + * Copyright 2021-2022 Innovative Advantage Inc. + */ + +#include +#include +#include +#include +#include +#include +#include "felix.h" + +#define VSC7514_NUM_PORTS 11 + +#define OCELOT_PORT_MODE_SERDES (OCELOT_PORT_MODE_SGMII | \ + OCELOT_PORT_MODE_QSGMII) + +static const u32 vsc7512_port_modes[VSC7514_NUM_PORTS] = { + OCELOT_PORT_MODE_INTERNAL, + OCELOT_PORT_MODE_INTERNAL, + OCELOT_PORT_MODE_INTERNAL, + OCELOT_PORT_MODE_INTERNAL, + OCELOT_PORT_MODE_NONE, + OCELOT_PORT_MODE_NONE, + OCELOT_PORT_MODE_NONE, + OCELOT_PORT_MODE_NONE, + OCELOT_PORT_MODE_NONE, + OCELOT_PORT_MODE_NONE, + OCELOT_PORT_MODE_NONE, +}; + +static const struct ocelot_ops ocelot_ext_ops = { + .reset = ocelot_reset, + .wm_enc = ocelot_wm_enc, + .wm_dec = ocelot_wm_dec, + .wm_stat = ocelot_wm_stat, + .port_to_netdev = felix_port_to_netdev, + .netdev_to_port = felix_netdev_to_port, +}; + +static const char * const vsc7512_resource_names[TARGET_MAX] = { + [SYS] = "sys", + [REW] = "rew", + [S0] = "s0", + [S1] = "s1", + [S2] = "s2", + [QS] = "qs", + [QSYS] = "qsys", + [ANA] = "ana", +}; + +static const struct felix_info vsc7512_info = { + .resource_names = vsc7512_resource_names, + .regfields = vsc7514_regfields, + .map = vsc7514_regmap, + .ops = &ocelot_ext_ops, + .vcap = vsc7514_vcap_props, + .num_mact_rows = 1024, + .num_ports = VSC7514_NUM_PORTS, + .num_tx_queues = OCELOT_NUM_TC, + .port_modes = vsc7512_port_modes, +}; + +static int ocelot_ext_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct dsa_switch *ds; + struct ocelot *ocelot; + struct felix *felix; + int err; + + felix = kzalloc(sizeof(*felix), GFP_KERNEL); + if (!felix) + return -ENOMEM; + + dev_set_drvdata(dev, felix); + + ocelot = &felix->ocelot; + ocelot->dev = dev; + + ocelot->num_flooding_pgids = 1; + + felix->info = &vsc7512_info; + + ds = kzalloc(sizeof(*ds), GFP_KERNEL); + if (!ds) { + err = -ENOMEM; + dev_err_probe(dev, err, "Failed to allocate DSA switch\n"); + goto err_free_felix; + } + + ds->dev = dev; + ds->num_ports = felix->info->num_ports; + ds->num_tx_queues = felix->info->num_tx_queues; + + ds->ops = &felix_switch_ops; + ds->priv = ocelot; + felix->ds = ds; + felix->tag_proto = DSA_TAG_PROTO_OCELOT; + + err = dsa_register_switch(ds); + if (err) { + dev_err_probe(dev, err, "Failed to register DSA switch\n"); + goto err_free_ds; + } + + return 0; + +err_free_ds: + kfree(ds); +err_free_felix: + kfree(felix); + return err; +} + +static int ocelot_ext_remove(struct platform_device *pdev) +{ + struct felix *felix = dev_get_drvdata(&pdev->dev); + + if (!felix) + return 0; + + dsa_unregister_switch(felix->ds); + + kfree(felix->ds); + kfree(felix); + + return 0; +} + +static void ocelot_ext_shutdown(struct platform_device *pdev) +{ + struct felix *felix = dev_get_drvdata(&pdev->dev); + + if (!felix) + return; + + dsa_switch_shutdown(felix->ds); + + dev_set_drvdata(&pdev->dev, NULL); +} + +static const struct of_device_id ocelot_ext_switch_of_match[] = { + { .compatible = "mscc,vsc7512-switch" }, + { }, +}; +MODULE_DEVICE_TABLE(of, ocelot_ext_switch_of_match); + +static struct platform_driver ocelot_ext_switch_driver = { + .driver = { + .name = "ocelot-switch", + .of_match_table = of_match_ptr(ocelot_ext_switch_of_match), + }, + .probe = ocelot_ext_probe, + .remove = ocelot_ext_remove, + .shutdown = ocelot_ext_shutdown, +}; +module_platform_driver(ocelot_ext_switch_driver); + +MODULE_DESCRIPTION("External Ocelot Switch driver"); +MODULE_LICENSE("GPL"); +MODULE_IMPORT_NS(MFD_OCELOT);