diff options
| author | Chintan Vankar <c-vankar@ti.com> | 2024-04-19 13:56:26 +0530 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2024-04-23 12:07:24 +0200 |
| commit | c03a6fd398269e345ee808cdced311fd01215c18 (patch) | |
| tree | 81f7b6959f22e50e621c6340f010227417043cb4 /drivers/net/ethernet/ti/am65-cpts.h | |
| parent | c459f606f66dfdb14aef5a7927c2f4b274682fee (diff) | |
net: ethernet: ti: am65-cpsw/ethtool: Enable RX HW timestamp only for PTP packets
In the current mechanism of timestamping, am65-cpsw-nuss driver
enables hardware timestamping for all received packets by setting
the TSTAMP_EN bit in CPTS_CONTROL register, which directs the CPTS
module to timestamp all received packets, followed by passing
timestamp via DMA descriptors. This mechanism causes CPSW Port to
Lock up.
To prevent port lock up, don't enable rx packet timestamping by
setting TSTAMP_EN bit in CPTS_CONTROL register. The workaround for
timestamping received packets is to utilize the CPTS Event FIFO
that records timestamps corresponding to certain events. The CPTS
module is configured to generate timestamps for Multicast Ethernet,
UDP/IPv4 and UDP/IPv6 PTP packets.
Update supported hwtstamp_rx_filters values for CPSW's timestamping
capability.
Fixes: b1f66a5bee07 ("net: ethernet: ti: am65-cpsw-nuss: enable packet timestamping support")
Signed-off-by: Chintan Vankar <c-vankar@ti.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'drivers/net/ethernet/ti/am65-cpts.h')
| -rw-r--r-- | drivers/net/ethernet/ti/am65-cpts.h | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/drivers/net/ethernet/ti/am65-cpts.h b/drivers/net/ethernet/ti/am65-cpts.h index 90296968a75c..6099d772799d 100644 --- a/drivers/net/ethernet/ti/am65-cpts.h +++ b/drivers/net/ethernet/ti/am65-cpts.h @@ -25,7 +25,6 @@ int am65_cpts_phc_index(struct am65_cpts *cpts); void am65_cpts_rx_timestamp(struct am65_cpts *cpts, struct sk_buff *skb); void am65_cpts_tx_timestamp(struct am65_cpts *cpts, struct sk_buff *skb); void am65_cpts_prep_tx_timestamp(struct am65_cpts *cpts, struct sk_buff *skb); -void am65_cpts_rx_enable(struct am65_cpts *cpts, bool en); u64 am65_cpts_ns_gettime(struct am65_cpts *cpts); int am65_cpts_estf_enable(struct am65_cpts *cpts, int idx, struct am65_cpts_estf_cfg *cfg); @@ -64,10 +63,6 @@ static inline void am65_cpts_prep_tx_timestamp(struct am65_cpts *cpts, { } -static inline void am65_cpts_rx_enable(struct am65_cpts *cpts, bool en) -{ -} - static inline s64 am65_cpts_ns_gettime(struct am65_cpts *cpts) { return 0; |