bnxt_en: improve TX timestamping FIFO configuration

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[ Upstream commit 8f7ae5a851 ]

Reconfiguration of netdev may trigger close/open procedure which can
break FIFO status by adjusting the amount of empty slots for TX
timestamps. But it is not really needed because timestamps for the
packets sent over the wire still can be retrieved. On the other side,
during netdev close procedure any skbs waiting for TX timestamps can be
leaked because there is no cleaning procedure called. Free skbs waiting
for TX timestamps when closing netdev.

Fixes: 8aa2a79e9b ("bnxt_en: Increase the max total outstanding PTP TX packets to 4")
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Vadim Fedorenko <vadfed@meta.com>
Link: https://patch.msgid.link/20250424125547.460632-1-vadfed@meta.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Vadim Fedorenko 2025-04-24 05:55:47 -07:00 • committed by Greg Kroah-Hartman

parent ddc1e64c29

commit 4911412efd

3 changed files with 25 additions and 10 deletions

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5

drivers/net/ethernet/broadcom/bnxt/bnxt.c

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29

drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c

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1

drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.h

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