dpaa2-eth: add API for Tx shaping (39344a89) · Commits · 戴 / test

drivers/net/ethernet/freescale/dpaa2/dpni-cmd.h

+13 −0

Original line number	Diff line number	Diff line
		@@ -626,4 +626,17 @@ struct dpni_cmd_set_congestion_notification {
		__le32 threshold_exit;
		};

		#define DPNI_COUPLED_SHIFT 0
		#define DPNI_COUPLED_SIZE 1

		struct dpni_cmd_set_tx_shaping {
		__le16 tx_cr_max_burst_size;
		__le16 tx_er_max_burst_size;
		__le32 pad;
		__le32 tx_cr_rate_limit;
		__le32 tx_er_rate_limit;
		/* from LSB: coupled:1 */
		u8 coupled;
		};

		#endif /* _FSL_DPNI_CMD_H */

+36 −0

Original line number	Diff line number	Diff line
		@@ -1963,3 +1963,39 @@ int dpni_clear_qos_table(struct fsl_mc_io *mc_io,
		/* send command to mc*/
		return mc_send_command(mc_io, &cmd);
		}

		/**
		* dpni_set_tx_shaping() - Set the transmit shaping
		* @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
		* @tx_cr_shaper: TX committed rate shaping configuration
		* @tx_er_shaper: TX excess rate shaping configuration
		* @coupled: Committed and excess rate shapers are coupled
		*
		* Return: '0' on Success; Error code otherwise.
		*/
		int dpni_set_tx_shaping(struct fsl_mc_io *mc_io,
		u32 cmd_flags,
		u16 token,
		const struct dpni_tx_shaping_cfg *tx_cr_shaper,
		const struct dpni_tx_shaping_cfg *tx_er_shaper,
		int coupled)
		{
		struct dpni_cmd_set_tx_shaping *cmd_params;
		struct fsl_mc_command cmd = { 0 };

		/* prepare command */
		cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_TX_SHAPING,
		cmd_flags,
		token);
		cmd_params = (struct dpni_cmd_set_tx_shaping *)cmd.params;
		cmd_params->tx_cr_max_burst_size = cpu_to_le16(tx_cr_shaper->max_burst_size);
		cmd_params->tx_er_max_burst_size = cpu_to_le16(tx_er_shaper->max_burst_size);
		cmd_params->tx_cr_rate_limit = cpu_to_le32(tx_cr_shaper->rate_limit);
		cmd_params->tx_er_rate_limit = cpu_to_le32(tx_er_shaper->rate_limit);
		dpni_set_field(cmd_params->coupled, COUPLED, coupled);

		/* send command to mc*/
		return mc_send_command(mc_io, &cmd);
		}

+16 −0

Original line number	Diff line number	Diff line
		@@ -1062,5 +1062,21 @@ int dpni_get_api_version(struct fsl_mc_io *mc_io,
		u32 cmd_flags,
		u16 *major_ver,
		u16 *minor_ver);
		/**
		* struct dpni_tx_shaping - Structure representing DPNI tx shaping configuration
		* @rate_limit: Rate in Mbps
		* @max_burst_size: Burst size in bytes (up to 64KB)
		*/
		struct dpni_tx_shaping_cfg {
		u32 rate_limit;
		u16 max_burst_size;
		};

		int dpni_set_tx_shaping(struct fsl_mc_io *mc_io,
		u32 cmd_flags,
		u16 token,
		const struct dpni_tx_shaping_cfg *tx_cr_shaper,
		const struct dpni_tx_shaping_cfg *tx_er_shaper,
		int coupled);

		#endif /* __FSL_DPNI_H */