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Tue, 21 Mar 2023 07:38:41 -0500 From: Harini Katakam To: , , , , , , , , , , CC: , , , , , Subject: [PATCH net-next v2 1/2] net: macb: Enable PTP unicast Date: Tue, 21 Mar 2023 18:08:35 +0530 Message-ID: <20230321123836.6906-2-harini.katakam@amd.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20230321123836.6906-1-harini.katakam@amd.com> References: <20230321123836.6906-1-harini.katakam@amd.com> MIME-Version: 1.0 X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CO1NAM11FT108:EE_|DM4PR12MB5795:EE_ X-MS-Office365-Filtering-Correlation-Id: 2fb57b0c-dea9-4613-d678-08db2a093728 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:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB04.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230025)(4636009)(396003)(136003)(346002)(39860400002)(376002)(451199018)(46966006)(40470700004)(82310400005)(40460700003)(36756003)(40480700001)(35950700001)(83380400001)(316002)(4326008)(70206006)(498600001)(70586007)(8676002)(54906003)(26005)(336012)(2616005)(110136005)(42882007)(47076005)(921005)(426003)(6666004)(1076003)(356005)(83170400001)(8936002)(7416002)(44832011)(5660300002)(41300700001)(82740400003)(81166007)(2906002);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 21 Mar 2023 12:38:46.9990 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 2fb57b0c-dea9-4613-d678-08db2a093728 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: CO1NAM11FT108.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM4PR12MB5795 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Harini Katakam Enable transmission and reception of PTP unicast packets by updating PTP unicast config bit and setting current HW mac address as allowed address in PTP unicast filter registers. Signed-off-by: Harini Katakam Signed-off-by: Michal Simek Signed-off-by: Radhey Shyam Pandey --- v2: Handle operation using a single write as suggested by Cladiu drivers/net/ethernet/cadence/macb.h | 4 ++++ drivers/net/ethernet/cadence/macb_main.c | 15 +++++++++++++-- 2 files changed, 17 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/cadence/macb.h b/drivers/net/ethernet/cad= ence/macb.h index 9c410f93a103..1aa578c1ca4a 100644 --- a/drivers/net/ethernet/cadence/macb.h +++ b/drivers/net/ethernet/cadence/macb.h @@ -95,6 +95,8 @@ #define GEM_SA4B 0x00A0 /* Specific4 Bottom */ #define GEM_SA4T 0x00A4 /* Specific4 Top */ #define GEM_WOL 0x00b8 /* Wake on LAN */ +#define GEM_RXPTPUNI 0x00D4 /* PTP RX Unicast address */ +#define GEM_TXPTPUNI 0x00D8 /* PTP TX Unicast address */ #define GEM_EFTSH 0x00e8 /* PTP Event Frame Transmitted Seconds Register = 47:32 */ #define GEM_EFRSH 0x00ec /* PTP Event Frame Received Seconds Register 47:= 32 */ #define GEM_PEFTSH 0x00f0 /* PTP Peer Event Frame Transmitted Seconds Reg= ister 47:32 */ @@ -245,6 +247,8 @@ #define MACB_TZQ_OFFSET 12 /* Transmit zero quantum pause frame */ #define MACB_TZQ_SIZE 1 #define MACB_SRTSM_OFFSET 15 /* Store Receive Timestamp to Memory */ +#define MACB_PTPUNI_OFFSET 20 /* PTP Unicast packet enable */ +#define MACB_PTPUNI_SIZE 1 #define MACB_OSSMODE_OFFSET 24 /* Enable One Step Synchro Mode */ #define MACB_OSSMODE_SIZE 1 #define MACB_MIIONRGMII_OFFSET 28 /* MII Usage on RGMII Interface */ diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/etherne= t/cadence/macb_main.c index 51c9fd6f68a4..4c2c82573399 100644 --- a/drivers/net/ethernet/cadence/macb_main.c +++ b/drivers/net/ethernet/cadence/macb_main.c @@ -288,6 +288,13 @@ static void macb_set_hwaddr(struct macb *bp) top =3D cpu_to_le16(*((u16 *)(bp->dev->dev_addr + 4))); macb_or_gem_writel(bp, SA1T, top); =20 +#ifdef CONFIG_MACB_USE_HWSTAMP + if (gem_has_ptp(bp)) { + gem_writel(bp, RXPTPUNI, bottom); + gem_writel(bp, TXPTPUNI, bottom); + } +#endif + /* Clear unused address register sets */ macb_or_gem_writel(bp, SA2B, 0); macb_or_gem_writel(bp, SA2T, 0); @@ -721,8 +728,12 @@ static void macb_mac_link_up(struct phylink_config *co= nfig, =20 spin_unlock_irqrestore(&bp->lock, flags); =20 - /* Enable Rx and Tx */ - macb_writel(bp, NCR, macb_readl(bp, NCR) | MACB_BIT(RE) | MACB_BIT(TE)); + /* Enable Rx and Tx; Enable PTP unicast */ + ctrl =3D macb_readl(bp, NCR); + if (IS_ENABLED(CONFIG_MACB_USE_HWSTAMP) && gem_has_ptp(bp)) + ctrl |=3D MACB_BIT(PTPUNI); + + macb_writel(bp, NCR, ctrl | MACB_BIT(RE) | MACB_BIT(TE)); =20 netif_tx_wake_all_queues(ndev); } --=20 2.17.1 From nobody Sun Feb 8 05:08:34 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D3CBBC6FD1D for ; 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Tue, 21 Mar 2023 07:38:46 -0500 From: Harini Katakam To: , , , , , , , , , , CC: , , , , , Subject: [PATCH net-next v2 2/2] net: macb: Optimize reading HW timestamp Date: Tue, 21 Mar 2023 18:08:36 +0530 Message-ID: <20230321123836.6906-3-harini.katakam@amd.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20230321123836.6906-1-harini.katakam@amd.com> References: <20230321123836.6906-1-harini.katakam@amd.com> MIME-Version: 1.0 X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CY4PEPF0000C97D:EE_|CH3PR12MB8403:EE_ X-MS-Office365-Filtering-Correlation-Id: 0aa76614-85d6-4507-6f8f-08db2a0939c0 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:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB03.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230025)(4636009)(396003)(136003)(346002)(376002)(39860400002)(451199018)(40470700004)(46966006)(82310400005)(47076005)(35950700001)(83380400001)(426003)(2616005)(42882007)(336012)(81166007)(82740400003)(921005)(83170400001)(110136005)(40460700003)(356005)(36756003)(8676002)(8936002)(4326008)(2906002)(44832011)(70206006)(70586007)(41300700001)(40480700001)(26005)(5660300002)(54906003)(1076003)(7416002)(6666004)(498600001)(316002);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 21 Mar 2023 12:38:51.4104 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 0aa76614-85d6-4507-6f8f-08db2a0939c0 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB03.amd.com] X-MS-Exchange-CrossTenant-AuthSource: CY4PEPF0000C97D.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH3PR12MB8403 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Harini Katakam The seconds input from BD (6 bits) just needs to be ORed with the upper bits from timer in this function. Avoid addition operation every single time. Seconds rollover handling is left untouched. Signed-off-by: Harini Katakam Signed-off-by: Michal Simek Signed-off-by: Radhey Shyam Pandey --- v2: - Update HW timestamp logic to remove sec_rollover variable as per Cladiu's comment - Remove Richard Cochran's ACK on original patch as the patch changed drivers/net/ethernet/cadence/macb_ptp.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/cadence/macb_ptp.c b/drivers/net/ethernet= /cadence/macb_ptp.c index e6cb20aaa76a..f9db4501b995 100644 --- a/drivers/net/ethernet/cadence/macb_ptp.c +++ b/drivers/net/ethernet/cadence/macb_ptp.c @@ -258,6 +258,8 @@ static int gem_hw_timestamp(struct macb *bp, u32 dma_de= sc_ts_1, */ gem_tsu_get_time(&bp->ptp_clock_info, &tsu, NULL); =20 + ts->tv_sec |=3D ((~GEM_DMA_SEC_MASK) & tsu.tv_sec); + /* If the top bit is set in the timestamp, * but not in 1588 timer, it has rolled over, * so subtract max size @@ -266,8 +268,6 @@ static int gem_hw_timestamp(struct macb *bp, u32 dma_de= sc_ts_1, !(tsu.tv_sec & (GEM_DMA_SEC_TOP >> 1))) ts->tv_sec -=3D GEM_DMA_SEC_TOP; =20 - ts->tv_sec +=3D ((~GEM_DMA_SEC_MASK) & tsu.tv_sec); - return 0; } =20 --=20 2.17.1