| Message ID | 1590394170-5363-1-git-send-email-fugang.duan@nxp.com |
|---|---|
| State | New |
| Headers | show
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Mon, 25 May 2020 08:14:15 +0000 From: Fugang Duan <fugang.duan@nxp.com> To: peppe.cavallaro@st.com, alexandre.torgue@st.com, joabreu@synopsys.com, kuba@kernel.org, davem@davemloft.net Cc: netdev@vger.kernel.org, mcoquelin.stm32@gmail.com, p.zabel@pengutronix.de, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, fugang.duan@nxp.com Subject: [PATCH net 1/1] net: stmmac: enable timestamp snapshot for required PTP packets in dwmac v5.10a Date: Mon, 25 May 2020 16:09:30 +0800 Message-Id: <1590394170-5363-1-git-send-email-fugang.duan@nxp.com> X-Mailer: git-send-email 2.7.4 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-ClientProxiedBy: SG2PR0302CA0017.apcprd03.prod.outlook.com (2603:1096:3:2::27) To AM6PR0402MB3607.eurprd04.prod.outlook.com (2603:10a6:209:12::18) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from b38611.ap.freescale.net (119.31.174.66) by SG2PR0302CA0017.apcprd03.prod.outlook.com (2603:1096:3:2::27) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.20.3045.9 via Frontend Transport; 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[net,1/1] net: stmmac: enable timestamp snapshot for required PTP packets in dwmac v5.10a
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diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index b6f92c7..73677c3 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -630,7 +630,8 @@ static int stmmac_hwtstamp_set(struct net_device *dev, struct ifreq *ifr) config.rx_filter = HWTSTAMP_FILTER_PTP_V2_EVENT; ptp_v2 = PTP_TCR_TSVER2ENA; snap_type_sel = PTP_TCR_SNAPTYPSEL_1; - ts_event_en = PTP_TCR_TSEVNTENA; + if (priv->synopsys_id != DWMAC_CORE_5_10) + ts_event_en = PTP_TCR_TSEVNTENA; ptp_over_ipv4_udp = PTP_TCR_TSIPV4ENA; ptp_over_ipv6_udp = PTP_TCR_TSIPV6ENA; ptp_over_ethernet = PTP_TCR_TSIPENA;
For rx filter 'HWTSTAMP_FILTER_PTP_V2_EVENT', it should be PTP v2/802.AS1, any layer, any kind of event packet, but HW only take timestamp snapshot for below PTP message: sync, Pdelay_req, Pdelay_resp. Then it causes below issue when test E2E case: ptp4l[2479.534]: port 1: received DELAY_REQ without timestamp ptp4l[2481.423]: port 1: received DELAY_REQ without timestamp ptp4l[2481.758]: port 1: received DELAY_REQ without timestamp ptp4l[2483.524]: port 1: received DELAY_REQ without timestamp ptp4l[2484.233]: port 1: received DELAY_REQ without timestamp ptp4l[2485.750]: port 1: received DELAY_REQ without timestamp ptp4l[2486.888]: port 1: received DELAY_REQ without timestamp ptp4l[2487.265]: port 1: received DELAY_REQ without timestamp ptp4l[2487.316]: port 1: received DELAY_REQ without timestamp Timestamp snapshot dependency on register bits in received path: SNAPTYPSEL TSMSTRENA TSEVNTENA PTP_Messages 01 x 0 SYNC, Follow_Up, Delay_Req, Delay_Resp, Pdelay_Req, Pdelay_Resp, Pdelay_Resp_Follow_Up 01 0 1 SYNC, Pdelay_Req, Pdelay_Resp For dwmac v5.10a, enabling all events by setting register DWC_EQOS_TIME_STAMPING[SNAPTYPSEL] to 2’b01, clearing bit [TSEVNTENA] to 0’b0, which can support all required events. Signed-off-by: Fugang Duan <fugang.duan@nxp.com> --- drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)