DPDK qos support for 40G port

* DPDK qos support for 40G port
@ 2017-08-04  1:54 Kevin Yan
  2017-08-04  9:57 ` Dumitrescu, Cristian
  0 siblings, 1 reply; 7+ messages in thread
From: Kevin Yan @ 2017-08-04  1:54 UTC (permalink / raw)
  To: dev

Hi,
                I have  a question about dpdk qos feature, in rte_sched.h,
                /** Port configuration parameters. */
struct rte_sched_port_params {
                const char *name;                /**< String to be associated */
                int socket;                      /**< CPU socket ID */
                uint32_t rate;                   /**< Output port rate
                                                                                  * (measured in bytes per second) */
                uint32_t mtu;                    /**< Maximum Ethernet frame size
                                                                                  * (measured in bytes).
                                                                                  * Should not include the framing overhead. */
                uint32_t frame_overhead;         /**< Framing overhead per packet
                                                                                  * (measured in bytes) */
                uint32_t n_subports_per_port;    /**< Number of subports */
                uint32_t n_pipes_per_subport;    /**< Number of pipes per subport */
                uint16_t qsize[RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE];
                /**< Packet queue size for each traffic class.
                * All queues within the same pipe traffic class have the same
                * size. Queues from different pipes serving the same traffic
                * class have the same size. */
                struct rte_sched_pipe_params *pipe_profiles;
                /**< Pipe profile table.
                * Every pipe is configured using one of the profiles from this table. */
                uint32_t n_pipe_profiles;        /**< Profiles in the pipe profile table */
#ifdef RTE_SCHED_RED
                struct rte_red_params red_params[RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE][e_RTE_METER_COLORS]; /**< RED parameters */
#endif
};

                rate is type of uint32_t, but if physical port rate is 40G bit/s, which is 5G byte/s, 5G already exceed the max value of uint32_t, so I doult that 40G is not supported by dpdk qos lib, or any error of my understanding?

                Thanks and waiting for your reply!

BRs,
Kevin

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