diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c index dbfd1b36774c..345aac4484ee 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c @@ -678,11 +678,17 @@ static void bnxt_stamp_tx_skb(struct bnxt *bp, struct sk_buff *skb) { struct bnxt_ptp_cfg *ptp = bp->ptp_cfg; struct skb_shared_hwtstamps timestamp; + unsigned long now = jiffies; u64 ts = 0, ns = 0; + u32 tmo = 0; int rc; + if (!ptp->txts_pending) + ptp->abs_txts_tmo = now + msecs_to_jiffies(ptp->txts_tmo); + if (!time_after_eq(now, ptp->abs_txts_tmo)) + tmo = jiffies_to_msecs(ptp->abs_txts_tmo - now); rc = bnxt_hwrm_port_ts_query(bp, PORT_TS_QUERY_REQ_FLAGS_PATH_TX, &ts, - 0); + tmo); if (!rc) { memset(×tamp, 0, sizeof(timestamp)); spin_lock_bh(&ptp->ptp_lock); @@ -691,6 +697,10 @@ static void bnxt_stamp_tx_skb(struct bnxt *bp, struct sk_buff *skb) timestamp.hwtstamp = ns_to_ktime(ns); skb_tstamp_tx(ptp->tx_skb, ×tamp); } else { + if (!time_after_eq(jiffies, ptp->abs_txts_tmo)) { + ptp->txts_pending = true; + return; + } netdev_warn_once(bp->dev, "TS query for TX timer failed rc = %x\n", rc); } @@ -698,6 +708,7 @@ static void bnxt_stamp_tx_skb(struct bnxt *bp, struct sk_buff *skb) dev_kfree_skb_any(ptp->tx_skb); ptp->tx_skb = NULL; atomic_inc(&ptp->tx_avail); + ptp->txts_pending = false; } static long bnxt_ptp_ts_aux_work(struct ptp_clock_info *ptp_info) @@ -721,6 +732,8 @@ static long bnxt_ptp_ts_aux_work(struct ptp_clock_info *ptp_info) spin_unlock_bh(&ptp->ptp_lock); ptp->next_overflow_check = now + BNXT_PHC_OVERFLOW_PERIOD; } + if (ptp->txts_pending) + return 0; return HZ; } @@ -973,6 +986,7 @@ int bnxt_ptp_init(struct bnxt *bp, bool phc_cfg) spin_unlock_bh(&ptp->ptp_lock); ptp_schedule_worker(ptp->ptp_clock, 0); } + ptp->txts_tmo = BNXT_PTP_DFLT_TX_TMO; return 0; out: diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.h b/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.h index 04886d5f22ad..6a2bba3f9e2d 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.h +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.h @@ -22,6 +22,7 @@ #define BNXT_LO_TIMER_MASK 0x0000ffffffffUL #define BNXT_HI_TIMER_MASK 0xffff00000000UL +#define BNXT_PTP_DFLT_TX_TMO 1000 /* ms */ #define BNXT_PTP_QTS_TIMEOUT 1000 #define BNXT_PTP_QTS_MAX_TMO_US 65535 #define BNXT_PTP_QTS_TX_ENABLES (PORT_TS_QUERY_REQ_ENABLES_PTP_SEQ_ID | \ @@ -116,11 +117,14 @@ struct bnxt_ptp_cfg { BNXT_PTP_MSG_PDELAY_REQ | \ BNXT_PTP_MSG_PDELAY_RESP) u8 tx_tstamp_en:1; + u8 txts_pending:1; int rx_filter; u32 tstamp_filters; u32 refclk_regs[2]; u32 refclk_mapped_regs[2]; + u32 txts_tmo; + unsigned long abs_txts_tmo; }; #if BITS_PER_LONG == 32