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Miller" , Florian Fainelli , Vivien Didelot , Andrew Lunn , UNGLinuxDriver@microchip.com, Alexandre Belloni , Claudiu Manoil , Vladimir Oltean , Lee Jones , katie.morris@in-advantage.com Subject: [RFC v7 net-next 11/13] net: mscc: ocelot: expose ocelot wm functions Date: Sun, 6 Mar 2022 18:12:06 -0800 Message-Id: <20220307021208.2406741-12-colin.foster@in-advantage.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220307021208.2406741-1-colin.foster@in-advantage.com> References: <20220307021208.2406741-1-colin.foster@in-advantage.com> X-ClientProxiedBy: MW4PR04CA0174.namprd04.prod.outlook.com (2603:10b6:303:85::29) To MWHPR1001MB2351.namprd10.prod.outlook.com (2603:10b6:301:35::37) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: bcb58d44-21cf-4ddd-3413-08d9ffdff11a X-MS-TrafficTypeDiagnostic: SA2PR10MB4553:EE_ X-Microsoft-Antispam-PRVS: 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; 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Signed-off-by: Colin Foster Reviewed-by: Vladimir Oltean --- drivers/net/ethernet/mscc/ocelot_devlink.c | 31 ++++++++++++++++++++++ drivers/net/ethernet/mscc/ocelot_vsc7514.c | 28 ------------------- include/soc/mscc/ocelot.h | 5 ++++ 3 files changed, 36 insertions(+), 28 deletions(-) diff --git a/drivers/net/ethernet/mscc/ocelot_devlink.c b/drivers/net/ethernet/mscc/ocelot_devlink.c index b8737efd2a85..d9ea75a14f2f 100644 --- a/drivers/net/ethernet/mscc/ocelot_devlink.c +++ b/drivers/net/ethernet/mscc/ocelot_devlink.c @@ -487,6 +487,37 @@ static void ocelot_watermark_init(struct ocelot *ocelot) ocelot_setup_sharing_watermarks(ocelot); } +/* Watermark encode + * Bit 8: Unit; 0:1, 1:16 + * Bit 7-0: Value to be multiplied with unit + */ +u16 ocelot_wm_enc(u16 value) +{ + WARN_ON(value >= 16 * BIT(8)); + + if (value >= BIT(8)) + return BIT(8) | (value / 16); + + return value; +} +EXPORT_SYMBOL(ocelot_wm_enc); + +u16 ocelot_wm_dec(u16 wm) +{ + if (wm & BIT(8)) + return (wm & GENMASK(7, 0)) * 16; + + return wm; +} +EXPORT_SYMBOL(ocelot_wm_dec); + +void ocelot_wm_stat(u32 val, u32 *inuse, u32 *maxuse) +{ + *inuse = (val & GENMASK(23, 12)) >> 12; + *maxuse = val & GENMASK(11, 0); +} +EXPORT_SYMBOL(ocelot_wm_stat); + /* Pool size and type are fixed up at runtime. Keeping this structure to * look up the cell size multipliers. */ diff --git a/drivers/net/ethernet/mscc/ocelot_vsc7514.c b/drivers/net/ethernet/mscc/ocelot_vsc7514.c index 4f4a495a60ad..5e526545ef67 100644 --- a/drivers/net/ethernet/mscc/ocelot_vsc7514.c +++ b/drivers/net/ethernet/mscc/ocelot_vsc7514.c @@ -307,34 +307,6 @@ static int ocelot_reset(struct ocelot *ocelot) return 0; } -/* Watermark encode - * Bit 8: Unit; 0:1, 1:16 - * Bit 7-0: Value to be multiplied with unit - */ -static u16 ocelot_wm_enc(u16 value) -{ - WARN_ON(value >= 16 * BIT(8)); - - if (value >= BIT(8)) - return BIT(8) | (value / 16); - - 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, diff --git a/include/soc/mscc/ocelot.h b/include/soc/mscc/ocelot.h index d9e2710d5646..480bf21da404 100644 --- a/include/soc/mscc/ocelot.h +++ b/include/soc/mscc/ocelot.h @@ -852,6 +852,11 @@ void ocelot_deinit_port(struct ocelot *ocelot, int port); void ocelot_port_set_dsa_8021q_cpu(struct ocelot *ocelot, int port); void ocelot_port_unset_dsa_8021q_cpu(struct ocelot *ocelot, int port); +/* Watermark interface */ +u16 ocelot_wm_enc(u16 value); +u16 ocelot_wm_dec(u16 wm); +void ocelot_wm_stat(u32 val, u32 *inuse, u32 *maxuse); + /* DSA callbacks */ void ocelot_get_strings(struct ocelot *ocelot, int port, u32 sset, u8 *data); void ocelot_get_ethtool_stats(struct ocelot *ocelot, int port, u64 *data);