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bnxt_en: Reset PTP tx_avail after possible firmware reset 

[ Upstream commit faa12ca245 ]

It is possible that during error recovery and firmware reset,
there is a pending TX PTP packet waiting for the timestamp.
We need to reset this condition so that after recovery, the
tx_avail count for PTP is reset back to the initial value.
Otherwise, we may not accept any PTP TX timestamps after
recovery.

Fixes: 118612d519 ("bnxt_en: Add PTP clock APIs, ioctls, and ethtool methods")
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Pavan Chebbi 2024-04-05 16:55:13 -07:00 committed by Greg Kroah-Hartman
parent 4a1b65d1e5
commit ecedcd7e39
1 changed files with 2 additions and 0 deletions
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2
drivers/net/ethernet/broadcom/bnxt/bnxt.c
View File

@ -10564,6 +10564,8 @@ static int __bnxt_open_nic(struct bnxt *bp, bool irq_re_init, bool link_re_init)
/* VF-reps may need to be re-opened after the PF is re-opened */
if (BNXT_PF(bp))
bnxt_vf_reps_open(bp);
if (bp->ptp_cfg)
atomic_set(&bp->ptp_cfg->tx_avail, BNXT_MAX_TX_TS);
bnxt_ptp_init_rtc(bp, true);
bnxt_ptp_cfg_tstamp_filters(bp);
return 0;