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net/bnxt: fix Tx timestamp init

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Fix to read the sequence ID register to get Tx timestamp.
Reading the sequence ID register is necessary for the HW FIFO to
advance and thereby get the correct value of the timestamp on Tx side.
This patch fixes that.

Fixes: b11cceb83a34 ("net/bnxt: support timesync")
Cc: stable@dpdk.org

Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Reviewed-by: Lance Richardson <lance.richardson@broadcom.com>
Reviewed-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Signed-off-by: Somnath Kotur <somnath.kotur@broadcom.com>
This commit is contained in:
Somnath Kotur 2021-03-16 11:10:48 +05:30 committed by Ajit Khaparde
parent ad5750a774
commit aa764bae8d
1 changed files with 1 additions and 0 deletions
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drivers/net/bnxt/bnxt_ethdev.c
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@ -3377,6 +3377,7 @@ static int bnxt_get_tx_ts(struct bnxt *bp, uint64_t *ts)
ptp->tx_mapped_regs[BNXT_PTP_TX_TS_L]));
*ts |= (uint64_t)rte_le_to_cpu_32(rte_read32((uint8_t *)bp->bar0 +
ptp->tx_mapped_regs[BNXT_PTP_TX_TS_H])) << 32;
rte_read32((uint8_t *)bp->bar0 + ptp->tx_mapped_regs[BNXT_PTP_TX_SEQ]);
return 0;
}