bnxt_en: Add PTP .getcrosststamp() interface to get device/host times

Browse source

.getcrosststamp() helps the applications to obtain a snapshot of
device and host time almost taken at the same time. This function
will report PCIe PTM device and host times to any application using
the ioctl PTP_SYS_OFFSET_PRECISE. The device time from the HW is
48-bit and needs to be converted to 64-bit.

Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
Reviewed-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Signed-off-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Link: https://patch.msgid.link/20260108183521.215610-3-michael.chan@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

...

This commit is contained in:

Pavan Chebbi 2026-01-08 10:35:17 -08:00 • committed by Jakub Kicinski

parent fdb573d675

commit c470195b98

3 changed files with 50 additions and 0 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

2

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

View file

1

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

View file

47

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

View file