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net: ravb: Break out Rx hardware timestamping

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Prepare for moving away from device specific bit-fields to track how to
do hardware Rx timestamping to using net common enums by breaking out
the timestamping to a helper function. This is done to create cleaner
code and prepare for easier changes improving the hardware timestapming.

There is no functional change.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://patch.msgid.link/20251104222420.882731-7-niklas.soderlund+renesas@ragnatech.se
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Niklas Söderlund
2025-11-04 23:24:19 +01:00
committed by Jakub Kicinski
parent 3614d249d1
commit 5ce97b8d61
1 changed files with 24 additions and 14 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/net/ethernet/renesas/ravb_main.c
+24 -14
View File
@@ -946,6 +946,29 @@ refill:
return rx_packets;
}
static void ravb_rx_rcar_hwstamp(struct ravb_private *priv, int q,
struct ravb_ex_rx_desc *desc,
struct sk_buff *skb)
{
u32 get_ts = priv->tstamp_rx_ctrl & RAVB_RXTSTAMP_TYPE;
struct skb_shared_hwtstamps *shhwtstamps;
struct timespec64 ts;
get_ts &= (q == RAVB_NC) ?
RAVB_RXTSTAMP_TYPE_V2_L2_EVENT :
~RAVB_RXTSTAMP_TYPE_V2_L2_EVENT;
if (!get_ts)
return;
shhwtstamps = skb_hwtstamps(skb);
memset(shhwtstamps, 0, sizeof(*shhwtstamps));
ts.tv_sec = ((u64)le16_to_cpu(desc->ts_sh) << 32)
| le32_to_cpu(desc->ts_sl);
ts.tv_nsec = le32_to_cpu(desc->ts_n);
shhwtstamps->hwtstamp = timespec64_to_ktime(ts);
}
/* Packet receive function for Ethernet AVB */
static int ravb_rx_rcar(struct net_device *ndev, int budget, int q)
{
@@ -955,7 +978,6 @@ static int ravb_rx_rcar(struct net_device *ndev, int budget, int q)
struct ravb_ex_rx_desc *desc;
unsigned int limit, i;
struct sk_buff *skb;
struct timespec64 ts;
int rx_packets = 0;
u8 desc_status;
u16 pkt_len;
@@ -992,7 +1014,6 @@ static int ravb_rx_rcar(struct net_device *ndev, int budget, int q)
if (desc_status & MSC_CEEF)
stats->rx_missed_errors++;
} else {
u32 get_ts = priv->tstamp_rx_ctrl & RAVB_RXTSTAMP_TYPE;
struct ravb_rx_buffer *rx_buff;
void *rx_addr;
@@ -1010,19 +1031,8 @@ static int ravb_rx_rcar(struct net_device *ndev, int budget, int q)
break;
}
skb_mark_for_recycle(skb);
get_ts &= (q == RAVB_NC) ?
RAVB_RXTSTAMP_TYPE_V2_L2_EVENT :
~RAVB_RXTSTAMP_TYPE_V2_L2_EVENT;
if (get_ts) {
struct skb_shared_hwtstamps *shhwtstamps;
shhwtstamps = skb_hwtstamps(skb);
memset(shhwtstamps, 0, sizeof(*shhwtstamps));
ts.tv_sec = ((u64) le16_to_cpu(desc->ts_sh) <<
32) | le32_to_cpu(desc->ts_sl);
ts.tv_nsec = le32_to_cpu(desc->ts_n);
shhwtstamps->hwtstamp = timespec64_to_ktime(ts);
}
ravb_rx_rcar_hwstamp(priv, q, desc, skb);
skb_put(skb, pkt_len);
skb->protocol = eth_type_trans(skb, ndev);