Re: [PATCH net-next 2/6] bnxt_en: Add PTP .getcrosststamp() interface to get device/host times
From: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Date: 2026-01-05 22:18:08
On 1/5/26 21:58, Michael Chan wrote:
From: Pavan Chebbi <pavan.chebbi@broadcom.com> .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 <redacted> Signed-off-by: Pavan Chebbi <pavan.chebbi@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> --- Cc: Vadim Fedorenko <vadim.fedorenko@linux.dev> v2: Add check for x86 support v1: https://lore.kernel.org/netdev/20251126215648.1885936-8-michael.chan@broadcom.com/ (local) --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 2 + drivers/net/ethernet/broadcom/bnxt/bnxt.h | 1 + drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c | 47 +++++++++++++++++++ 3 files changed, 50 insertions(+)
Reviewed-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>