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Date: Mon, 25 Jun 2018 20:37:13 +0800 From: Yangbo Lu <yangbo.lu@....com> To: netdev@...r.kernel.org, madalin.bucur@....com, Richard Cochran <richardcochran@...il.com>, Rob Herring <robh+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>, "David S . Miller" <davem@...emloft.net> Cc: devicetree@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org, linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, Yangbo Lu <yangbo.lu@....com> Subject: [v4, 07/10] fsl/fman_port: support getting timestamp This patch is to add fman_port_get_tstamp() interface to get timestamp. Signed-off-by: Yangbo Lu <yangbo.lu@....com> Acked-by: Richard Cochran <richardcochran@...il.com> Acked-by: Madalin Bucur <madalin.bucur@....com> --- Changes for v2: - None. Changes for v3: - Moved endianness conversion from dpaa to fman API. Changes for v4: - Fixed kbuild issue. --- drivers/net/ethernet/freescale/fman/fman_port.c | 12 ++++++++++++ drivers/net/ethernet/freescale/fman/fman_port.h | 2 ++ 2 files changed, 14 insertions(+), 0 deletions(-) diff --git a/drivers/net/ethernet/freescale/fman/fman_port.c b/drivers/net/ethernet/freescale/fman/fman_port.c index ce6e24c..4a2d960 100644 --- a/drivers/net/ethernet/freescale/fman/fman_port.c +++ b/drivers/net/ethernet/freescale/fman/fman_port.c @@ -1731,6 +1731,18 @@ int fman_port_get_hash_result_offset(struct fman_port *port, u32 *offset) } EXPORT_SYMBOL(fman_port_get_hash_result_offset); +int fman_port_get_tstamp(struct fman_port *port, const void *data, u64 *tstamp) +{ + if (port->buffer_offsets.time_stamp_offset == ILLEGAL_BASE) + return -EINVAL; + + *tstamp = be64_to_cpu(*(__be64 *)(data + + port->buffer_offsets.time_stamp_offset)); + + return 0; +} +EXPORT_SYMBOL(fman_port_get_tstamp); + static int fman_port_probe(struct platform_device *of_dev) { struct fman_port *port; diff --git a/drivers/net/ethernet/freescale/fman/fman_port.h b/drivers/net/ethernet/freescale/fman/fman_port.h index e86ca6a..9dbb69f 100644 --- a/drivers/net/ethernet/freescale/fman/fman_port.h +++ b/drivers/net/ethernet/freescale/fman/fman_port.h @@ -153,6 +153,8 @@ int fman_port_cfg_buf_prefix_content(struct fman_port *port, int fman_port_get_hash_result_offset(struct fman_port *port, u32 *offset); +int fman_port_get_tstamp(struct fman_port *port, const void *data, u64 *tstamp); + struct fman_port *fman_port_bind(struct device *dev); #endif /* __FMAN_PORT_H */ -- 1.7.1
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