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path: root/drivers/net/phy/dp83640.c
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Diffstat (limited to 'drivers/net/phy/dp83640.c')
-rw-r--r--drivers/net/phy/dp83640.c24
1 files changed, 17 insertions, 7 deletions
diff --git a/drivers/net/phy/dp83640.c b/drivers/net/phy/dp83640.c
index b0c9522bb535..2cd8dc5847b4 100644
--- a/drivers/net/phy/dp83640.c
+++ b/drivers/net/phy/dp83640.c
@@ -543,11 +543,20 @@ static void recalibrate(struct dp83640_clock *clock)
543 543
544/* time stamping methods */ 544/* time stamping methods */
545 545
546static void decode_evnt(struct dp83640_private *dp83640, 546static int decode_evnt(struct dp83640_private *dp83640,
547 struct phy_txts *phy_txts, u16 ests) 547 void *data, u16 ests)
548{ 548{
549 struct phy_txts *phy_txts;
549 struct ptp_clock_event event; 550 struct ptp_clock_event event;
550 int words = (ests >> EVNT_TS_LEN_SHIFT) & EVNT_TS_LEN_MASK; 551 int words = (ests >> EVNT_TS_LEN_SHIFT) & EVNT_TS_LEN_MASK;
552 u16 ext_status = 0;
553
554 if (ests & MULT_EVNT) {
555 ext_status = *(u16 *) data;
556 data += sizeof(ext_status);
557 }
558
559 phy_txts = data;
551 560
552 switch (words) { /* fall through in every case */ 561 switch (words) { /* fall through in every case */
553 case 3: 562 case 3:
@@ -565,6 +574,9 @@ static void decode_evnt(struct dp83640_private *dp83640,
565 event.timestamp = phy2txts(&dp83640->edata); 574 event.timestamp = phy2txts(&dp83640->edata);
566 575
567 ptp_clock_event(dp83640->clock->ptp_clock, &event); 576 ptp_clock_event(dp83640->clock->ptp_clock, &event);
577
578 words = ext_status ? words + 2 : words + 1;
579 return words * sizeof(u16);
568} 580}
569 581
570static void decode_rxts(struct dp83640_private *dp83640, 582static void decode_rxts(struct dp83640_private *dp83640,
@@ -643,9 +655,7 @@ static void decode_status_frame(struct dp83640_private *dp83640,
643 655
644 } else if (PSF_EVNT == type && len >= sizeof(*phy_txts)) { 656 } else if (PSF_EVNT == type && len >= sizeof(*phy_txts)) {
645 657
646 phy_txts = (struct phy_txts *) ptr; 658 size = decode_evnt(dp83640, ptr, ests);
647 decode_evnt(dp83640, phy_txts, ests);
648 size = sizeof(*phy_txts);
649 659
650 } else { 660 } else {
651 size = 0; 661 size = 0;
@@ -1034,8 +1044,8 @@ static bool dp83640_rxtstamp(struct phy_device *phydev,
1034 1044
1035 if (is_status_frame(skb, type)) { 1045 if (is_status_frame(skb, type)) {
1036 decode_status_frame(dp83640, skb); 1046 decode_status_frame(dp83640, skb);
1037 /* Let the stack drop this frame. */ 1047 kfree_skb(skb);
1038 return false; 1048 return true;
1039 } 1049 }
1040 1050
1041 SKB_PTP_TYPE(skb) = type; 1051 SKB_PTP_TYPE(skb) = type;