From a1f8723f38921a0216a63d3ec9f01ec1e2813363 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Stefan=20S=C3=B8rensen?= Date: Tue, 3 Nov 2015 09:34:08 +0100 Subject: [PATCH] dp83640: Only wait for timestamps for packets with timestamping enabled. MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit In the packet timestamping function, check that the ptp version and protocol of the packet matches what we have configured the hardware to actually generate timestamps for, before looking/waiting for a timestamp. Signed-off-by: Stefan Sørensen Signed-off-by: David S. Miller --- drivers/net/phy/dp83640.c | 25 +++++++++++++------------ 1 file changed, 13 insertions(+), 12 deletions(-) diff --git a/drivers/net/phy/dp83640.c b/drivers/net/phy/dp83640.c index 39ac633e3ef5..47b711739ba9 100644 --- a/drivers/net/phy/dp83640.c +++ b/drivers/net/phy/dp83640.c @@ -37,8 +37,6 @@ #define DP83640_PHY_ID 0x20005ce1 #define PAGESEL 0x13 -#define LAYER4 0x02 -#define LAYER2 0x01 #define MAX_RXTS 64 #define N_EXT_TS 6 #define N_PER_OUT 7 @@ -1296,29 +1294,29 @@ static int dp83640_hwtstamp(struct phy_device *phydev, struct ifreq *ifr) case HWTSTAMP_FILTER_PTP_V1_L4_SYNC: case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ: dp83640->hwts_rx_en = 1; - dp83640->layer = LAYER4; - dp83640->version = 1; + dp83640->layer = PTP_CLASS_L4; + dp83640->version = PTP_CLASS_V1; break; case HWTSTAMP_FILTER_PTP_V2_L4_EVENT: case HWTSTAMP_FILTER_PTP_V2_L4_SYNC: case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ: dp83640->hwts_rx_en = 1; - dp83640->layer = LAYER4; - dp83640->version = 2; + dp83640->layer = PTP_CLASS_L4; + dp83640->version = PTP_CLASS_V2; break; case HWTSTAMP_FILTER_PTP_V2_L2_EVENT: case HWTSTAMP_FILTER_PTP_V2_L2_SYNC: case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ: dp83640->hwts_rx_en = 1; - dp83640->layer = LAYER2; - dp83640->version = 2; + dp83640->layer = PTP_CLASS_L2; + dp83640->version = PTP_CLASS_V2; break; case HWTSTAMP_FILTER_PTP_V2_EVENT: case HWTSTAMP_FILTER_PTP_V2_SYNC: case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ: dp83640->hwts_rx_en = 1; - dp83640->layer = LAYER4|LAYER2; - dp83640->version = 2; + dp83640->layer = PTP_CLASS_L4 | PTP_CLASS_L2; + dp83640->version = PTP_CLASS_V2; break; default: return -ERANGE; @@ -1327,11 +1325,11 @@ static int dp83640_hwtstamp(struct phy_device *phydev, struct ifreq *ifr) txcfg0 = (dp83640->version & TX_PTP_VER_MASK) << TX_PTP_VER_SHIFT; rxcfg0 = (dp83640->version & TX_PTP_VER_MASK) << TX_PTP_VER_SHIFT; - if (dp83640->layer & LAYER2) { + if (dp83640->layer & PTP_CLASS_L2) { txcfg0 |= TX_L2_EN; rxcfg0 |= RX_L2_EN; } - if (dp83640->layer & LAYER4) { + if (dp83640->layer & PTP_CLASS_L4) { txcfg0 |= TX_IPV6_EN | TX_IPV4_EN; rxcfg0 |= RX_IPV6_EN | RX_IPV4_EN; } @@ -1397,6 +1395,9 @@ static bool dp83640_rxtstamp(struct phy_device *phydev, if (!dp83640->hwts_rx_en) return false; + if ((type & dp83640->version) == 0 || (type & dp83640->layer) == 0) + return false; + spin_lock_irqsave(&dp83640->rx_lock, flags); prune_rx_ts(dp83640); list_for_each_safe(this, next, &dp83640->rxts) { -- 2.20.1