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bnxt_en: Update firmware call to retrieve TX PTP timestamp

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New firmware interface requires the PTP sequence ID header offset to
be passed to the firmware to properly find the matching timestamp
for all protocols.

Fixes: 83bb623c96 ("bnxt_en: Transmit and retrieve packet timestamps")
Reviewed-by: Edwin Peer <edwin.peer@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michael Chan 2021-08-07 15:03:14 -04:00 committed by David S. Miller
parent fbfee25796
commit 9e26680733
3 changed files with 11 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/net/ethernet/broadcom/bnxt/bnxt.c
View File

@ -426,7 +426,10 @@ static netdev_tx_t bnxt_start_xmit(struct sk_buff *skb, struct net_device *dev)
if (ptp && ptp->tx_tstamp_en && !skb_is_gso(skb) &&
atomic_dec_if_positive(&ptp->tx_avail) >= 0) {
if (!bnxt_ptp_parse(skb, &ptp->tx_seqid)) {
if (!bnxt_ptp_parse(skb, &ptp->tx_seqid,
&ptp->tx_hdr_off)) {
if (vlan_tag_flags)
ptp->tx_hdr_off += VLAN_HLEN;
lflags |= cpu_to_le32(TX_BD_FLAGS_STAMP);
skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS;
} else {

4
drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c
View File

@ -20,7 +20,7 @@
#include "bnxt.h"
#include "bnxt_ptp.h"
int bnxt_ptp_parse(struct sk_buff *skb, u16 *seq_id)
int bnxt_ptp_parse(struct sk_buff *skb, u16 *seq_id, u16 *hdr_off)
{
unsigned int ptp_class;
struct ptp_header *hdr;
@ -34,6 +34,7 @@ int bnxt_ptp_parse(struct sk_buff *skb, u16 *seq_id)
if (!hdr)
return -EINVAL;
*hdr_off = (u8 *)hdr - skb->data;
*seq_id = ntohs(hdr->sequence_id);
return 0;
default:
@ -91,6 +92,7 @@ static int bnxt_hwrm_port_ts_query(struct bnxt *bp, u32 flags, u64 *ts)
PORT_TS_QUERY_REQ_FLAGS_PATH_TX) {
req.enables = cpu_to_le16(BNXT_PTP_QTS_TX_ENABLES);
req.ptp_seq_id = cpu_to_le32(bp->ptp_cfg->tx_seqid);
req.ptp_hdr_offset = cpu_to_le16(bp->ptp_cfg->tx_hdr_off);
req.ts_req_timeout = cpu_to_le16(BNXT_PTP_QTS_TIMEOUT);
}
mutex_lock(&bp->hwrm_cmd_lock);

6
drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.h
View File

@ -19,7 +19,8 @@
#define BNXT_PTP_QTS_TIMEOUT 1000
#define BNXT_PTP_QTS_TX_ENABLES (PORT_TS_QUERY_REQ_ENABLES_PTP_SEQ_ID | \
PORT_TS_QUERY_REQ_ENABLES_TS_REQ_TIMEOUT)
PORT_TS_QUERY_REQ_ENABLES_TS_REQ_TIMEOUT | \
PORT_TS_QUERY_REQ_ENABLES_PTP_HDR_OFFSET)
struct bnxt_ptp_cfg {
struct ptp_clock_info ptp_info;
@ -37,6 +38,7 @@ struct bnxt_ptp_cfg {
#define BNXT_PHC_OVERFLOW_PERIOD (19 * 3600 * HZ)
u16 tx_seqid;
u16 tx_hdr_off;
struct bnxt *bp;
atomic_t tx_avail;
#define BNXT_MAX_TX_TS 1
@ -74,7 +76,7 @@ do { \
((dst) = READ_ONCE(src))
#endif
int bnxt_ptp_parse(struct sk_buff *skb, u16 *seq_id);
int bnxt_ptp_parse(struct sk_buff *skb, u16 *seq_id, u16 *hdr_off);
int bnxt_hwtstamp_set(struct net_device *dev, struct ifreq *ifr);
int bnxt_hwtstamp_get(struct net_device *dev, struct ifreq *ifr);
int bnxt_get_tx_ts_p5(struct bnxt *bp, struct sk_buff *skb);