bnxt_en: Get the full 48-bit hardware timestamp periodically

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From the bnxt_timer(), read the 48-bit hardware running clock
periodically and store it in ptp->current_time.  The previous snapshot
of the clock will be stored in ptp->old_time.  The old_time snapshot
will be used in the next patches to compute the RX packet timestamps.

v2: Use .do_aux_work() to read the timer periodically.

Reviewed-by: Edwin Peer <edwin.peer@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>

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Pavan Chebbi 2021-06-27 13:19:47 -04:00 • committed by David S. Miller

parent 118612d519

commit 390862f45c

3 changed files with 41 additions and 0 deletions

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1

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

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39

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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