Add the necessary MC API for resetting the DPNI HW counters. This new function - dpni_reset_statistics - will be used in a subsequent patch that adds the debugfs controls.
Signed-off-by: Ioana Ciornei <[email protected]> --- .../net/ethernet/freescale/dpaa2/dpni-cmd.h | 1 + drivers/net/ethernet/freescale/dpaa2/dpni.c | 23 +++++++++++++++++++ drivers/net/ethernet/freescale/dpaa2/dpni.h | 4 ++++ 3 files changed, 28 insertions(+) diff --git a/drivers/net/ethernet/freescale/dpaa2/dpni-cmd.h b/drivers/net/ethernet/freescale/dpaa2/dpni-cmd.h index 593e3812af93..a7c0a37c96d7 100644 --- a/drivers/net/ethernet/freescale/dpaa2/dpni-cmd.h +++ b/drivers/net/ethernet/freescale/dpaa2/dpni-cmd.h @@ -68,6 +68,7 @@ #define DPNI_CMDID_CLR_FS_ENT DPNI_CMD(0x246) #define DPNI_CMDID_GET_STATISTICS DPNI_CMD(0x25D) +#define DPNI_CMDID_RESET_STATISTICS DPNI_CMD(0x25E) #define DPNI_CMDID_GET_QUEUE DPNI_CMD(0x25F) #define DPNI_CMDID_SET_QUEUE DPNI_CMD(0x260) #define DPNI_CMDID_GET_TAILDROP DPNI_CMD(0x261) diff --git a/drivers/net/ethernet/freescale/dpaa2/dpni.c b/drivers/net/ethernet/freescale/dpaa2/dpni.c index 68ed4c41b282..5a01451b04a6 100644 --- a/drivers/net/ethernet/freescale/dpaa2/dpni.c +++ b/drivers/net/ethernet/freescale/dpaa2/dpni.c @@ -1552,6 +1552,29 @@ int dpni_get_statistics(struct fsl_mc_io *mc_io, return 0; } +/** + * dpni_reset_statistics() - Clears DPNI statistics + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPNI object + * + * Return: '0' on Success; Error code otherwise. + */ +int dpni_reset_statistics(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token) +{ + struct fsl_mc_command cmd = { 0 }; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPNI_CMDID_RESET_STATISTICS, + cmd_flags, + token); + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} + /** * dpni_set_taildrop() - Set taildrop per queue or TC * @mc_io: Pointer to MC portal's I/O object diff --git a/drivers/net/ethernet/freescale/dpaa2/dpni.h b/drivers/net/ethernet/freescale/dpaa2/dpni.h index 39387991a1f9..bd95c597be3e 100644 --- a/drivers/net/ethernet/freescale/dpaa2/dpni.h +++ b/drivers/net/ethernet/freescale/dpaa2/dpni.h @@ -496,6 +496,10 @@ int dpni_get_statistics(struct fsl_mc_io *mc_io, u8 page, union dpni_statistics *stat); +int dpni_reset_statistics(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token); + /** * Enable auto-negotiation */ -- 2.25.1
